diff options
| author |   Dave Barach <dave@barachs.net> | 2016-12-09 09:52:16 -0500 |
|---|---|---|
| committer | Dave Barach <dave@barachs.net> | 2016-12-09 11:47:00 -0500 |
| commit | d7cb1b5f22948eba272e1a8844c75a2b87706fc4 (patch) | |
| tree | 20728b9b0e229ec43587f22fdbbcd4c2552b6965 | |
| parent | b78292efdfaf70baf89c778973d4bb3b822e95dd (diff) | |
Coding standards cleanup for vnet/vnet/ip, VPP-255
Change-Id: I12892fa571cc50e0541d6463a8b68e1b618edd9f
Signed-off-by: Dave Barach <dave@barachs.net>
52 files changed, 9133 insertions, 7808 deletions
diff --git a/vnet/vnet/ip/format.c b/vnet/vnet/ip/format.c index 0061d7ee414..be1c4fd32fb 100644 --- a/vnet/vnet/ip/format.c +++ b/vnet/vnet/ip/format.c @@ -40,11 +40,12 @@ #include <vnet/ip/ip.h> /* Format IP protocol. */ -u8 * format_ip_protocol (u8 * s, va_list * args) +u8 * +format_ip_protocol (u8 * s, va_list * args) { ip_protocol_t protocol = va_arg (*args, ip_protocol_t); - ip_main_t * im = &ip_main; - ip_protocol_info_t * pi = ip_get_protocol_info (im, protocol); + ip_main_t *im = &ip_main; + ip_protocol_info_t *pi = ip_get_protocol_info (im, protocol); if (pi) return format (s, "%s", pi->name); @@ -52,15 +53,16 @@ u8 * format_ip_protocol (u8 * s, va_list * args) return format (s, "unknown %d", protocol); } -uword unformat_ip_protocol (unformat_input_t * input, va_list * args) +uword +unformat_ip_protocol (unformat_input_t * input, va_list * args) { - u8 * result = va_arg (*args, u8 *); - ip_main_t * im = &ip_main; - ip_protocol_info_t * pi; + u8 *result = va_arg (*args, u8 *); + ip_main_t *im = &ip_main; + ip_protocol_info_t *pi; int i; - if (! unformat_user (input, unformat_vlib_number_by_name, - im->protocol_info_by_name, &i)) + if (!unformat_user (input, unformat_vlib_number_by_name, + im->protocol_info_by_name, &i)) return 0; pi = vec_elt_at_index (im->protocol_infos, i); @@ -68,12 +70,13 @@ uword unformat_ip_protocol (unformat_input_t * input, va_list * args) return 1; } -u8 * format_tcp_udp_port (u8 * s, va_list * args) +u8 * +format_tcp_udp_port (u8 * s, va_list * args) { int port = va_arg (*args, int); - ip_main_t * im = &ip_main; - tcp_udp_port_info_t * pi; - + ip_main_t *im = &ip_main; + tcp_udp_port_info_t *pi; + pi = ip_get_tcp_udp_port_info (im, port); if (pi) s = format (s, "%s", pi->name); @@ -83,13 +86,14 @@ u8 * format_tcp_udp_port (u8 * s, va_list * args) return s; } -uword unformat_tcp_udp_port (unformat_input_t * input, va_list * args) +uword +unformat_tcp_udp_port (unformat_input_t * input, va_list * args) { - u16 * result = va_arg (*args, u16 *); - ip_main_t * im = &ip_main; - tcp_udp_port_info_t * pi; + u16 *result = va_arg (*args, u16 *); + ip_main_t *im = &ip_main; + tcp_udp_port_info_t *pi; u32 i, port; - + if (unformat_user (input, unformat_vlib_number_by_name, im->port_info_by_name, &i)) @@ -107,3 +111,11 @@ uword unformat_tcp_udp_port (unformat_input_t * input, va_list * args) *result = port; return 1; } + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/format.h b/vnet/vnet/ip/format.h index 8a76a61f17a..c35f0f4bb74 100644 --- a/vnet/vnet/ip/format.h +++ b/vnet/vnet/ip/format.h @@ -50,9 +50,9 @@ unformat_function_t unformat_tcp_udp_port; typedef enum format_ip_adjacency_flags_t_ { - FORMAT_IP_ADJACENCY_NONE, - FORMAT_IP_ADJACENCY_BRIEF = FORMAT_IP_ADJACENCY_NONE, - FORMAT_IP_ADJACENCY_DETAIL = (1 << 0), + FORMAT_IP_ADJACENCY_NONE, + FORMAT_IP_ADJACENCY_BRIEF = FORMAT_IP_ADJACENCY_NONE, + FORMAT_IP_ADJACENCY_DETAIL = (1 << 0), } format_ip_adjacency_flags_t; format_function_t format_ip_adjacency; @@ -60,7 +60,8 @@ format_function_t format_ip_adjacency_packet_data; format_function_t format_ip46_address; -typedef enum { +typedef enum +{ IP46_TYPE_ANY, IP46_TYPE_IP4, IP46_TYPE_IP6 @@ -103,3 +104,11 @@ format_function_t format_tcp_header, format_udp_header; unformat_function_t unformat_pg_tcp_header, unformat_pg_udp_header; #endif /* included_ip_format_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/icmp4.c b/vnet/vnet/ip/icmp4.c index b1834ac70da..c3afff72f26 100644 --- a/vnet/vnet/ip/icmp4.c +++ b/vnet/vnet/ip/icmp4.c @@ -42,17 +42,18 @@ #include <vnet/pg/pg.h> -static char * icmp_error_strings[] = { +static char *icmp_error_strings[] = { #define _(f,s) s, foreach_icmp4_error #undef _ }; -static u8 * format_ip4_icmp_type_and_code (u8 * s, va_list * args) +static u8 * +format_ip4_icmp_type_and_code (u8 * s, va_list * args) { icmp4_type_t type = va_arg (*args, int); u8 code = va_arg (*args, int); - char * t = 0; + char *t = 0; #define _(n,f) case n: t = #f; break; @@ -66,7 +67,7 @@ static u8 * format_ip4_icmp_type_and_code (u8 * s, va_list * args) #undef _ - if (! t) + if (!t) return format (s, "unknown 0x%x", type); s = format (s, "%s", t); @@ -87,9 +88,10 @@ static u8 * format_ip4_icmp_type_and_code (u8 * s, va_list * args) return s; } -static u8 * format_ip4_icmp_header (u8 * s, va_list * args) +static u8 * +format_ip4_icmp_header (u8 * s, va_list * args) { - icmp46_header_t * icmp = va_arg (*args, icmp46_header_t *); + icmp46_header_t *icmp = va_arg (*args, icmp46_header_t *); u32 max_header_bytes = va_arg (*args, u32); /* Nothing to do. */ @@ -103,28 +105,30 @@ static u8 * format_ip4_icmp_header (u8 * s, va_list * args) return s; } -static u8 * format_icmp_input_trace (u8 * s, va_list * va) +static u8 * +format_icmp_input_trace (u8 * s, va_list * va) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*va, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*va, vlib_node_t *); - icmp_input_trace_t * t = va_arg (*va, icmp_input_trace_t *); + icmp_input_trace_t *t = va_arg (*va, icmp_input_trace_t *); s = format (s, "%U", - format_ip4_header, - t->packet_data, sizeof (t->packet_data)); + format_ip4_header, t->packet_data, sizeof (t->packet_data)); return s; } -typedef enum { +typedef enum +{ ICMP_INPUT_NEXT_ERROR, ICMP_INPUT_N_NEXT, } icmp_input_next_t; -typedef struct { - uword * type_and_code_by_name; +typedef struct +{ + uword *type_and_code_by_name; - uword * type_by_name; + uword *type_by_name; /* Vector dispatch table indexed by [icmp type]. */ u8 ip4_input_next_index_by_type[256]; @@ -134,18 +138,17 @@ icmp4_main_t icmp4_main; static uword ip4_icmp_input (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) + vlib_node_runtime_t * node, vlib_frame_t * frame) { - icmp4_main_t * im = &icmp4_main; + icmp4_main_t *im = &icmp4_main; uword n_packets = frame->n_vectors; - u32 * from, * to_next; + u32 *from, *to_next; u32 n_left_from, n_left_to_next, next; from = vlib_frame_vector_args (frame); n_left_from = n_packets; next = node->cached_next_index; - + if (node->flags & VLIB_NODE_FLAG_TRACE) vlib_trace_frame_buffers_only (vm, node, from, frame->n_vectors, /* stride */ 1, @@ -157,27 +160,27 @@ ip4_icmp_input (vlib_main_t * vm, while (n_left_from > 0 && n_left_to_next > 0) { - vlib_buffer_t * p0; - ip4_header_t * ip0; - icmp46_header_t * icmp0; + vlib_buffer_t *p0; + ip4_header_t *ip0; + icmp46_header_t *icmp0; icmp4_type_t type0; u32 bi0, next0; - - if (PREDICT_TRUE (n_left_from > 2)) - { - vlib_prefetch_buffer_with_index (vm, from[2], LOAD); - p0 = vlib_get_buffer (vm, from[1]); - ip0 = vlib_buffer_get_current (p0); - CLIB_PREFETCH(ip0, CLIB_CACHE_LINE_BYTES, LOAD); - } - + + if (PREDICT_TRUE (n_left_from > 2)) + { + vlib_prefetch_buffer_with_index (vm, from[2], LOAD); + p0 = vlib_get_buffer (vm, from[1]); + ip0 = vlib_buffer_get_current (p0); + CLIB_PREFETCH (ip0, CLIB_CACHE_LINE_BYTES, LOAD); + } + bi0 = to_next[0] = from[0]; from += 1; n_left_from -= 1; to_next += 1; n_left_to_next -= 1; - + p0 = vlib_get_buffer (vm, bi0); ip0 = vlib_buffer_get_current (p0); icmp0 = ip4_next_header (ip0); @@ -195,13 +198,14 @@ ip4_icmp_input (vlib_main_t * vm, n_left_to_next -= 1; } } - + vlib_put_next_frame (vm, node, next, n_left_to_next); } return frame->n_vectors; } +/* *INDENT-OFF* */ VLIB_REGISTER_NODE (ip4_icmp_input_node,static) = { .function = ip4_icmp_input, .name = "ip4-icmp-input", @@ -218,23 +222,23 @@ VLIB_REGISTER_NODE (ip4_icmp_input_node,static) = { [ICMP_INPUT_NEXT_ERROR] = "error-punt", }, }; +/* *INDENT-ON* */ static uword ip4_icmp_echo_request (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) + vlib_node_runtime_t * node, vlib_frame_t * frame) { uword n_packets = frame->n_vectors; - u32 * from, * to_next; + u32 *from, *to_next; u32 n_left_from, n_left_to_next, next; - ip4_main_t * i4m = &ip4_main; - u16 * fragment_ids, * fid; + ip4_main_t *i4m = &ip4_main; + u16 *fragment_ids, *fid; u8 host_config_ttl = i4m->host_config.ttl; from = vlib_frame_vector_args (frame); n_left_from = n_packets; next = node->cached_next_index; - + if (node->flags & VLIB_NODE_FLAG_TRACE) vlib_trace_frame_buffers_only (vm, node, from, frame->n_vectors, /* stride */ 1, @@ -242,7 +246,8 @@ ip4_icmp_echo_request (vlib_main_t * vm, /* Get random fragment IDs for replies. */ fid = fragment_ids = clib_random_buffer_get_data (&vm->random_buffer, - n_packets * sizeof (fragment_ids[0])); + n_packets * + sizeof (fragment_ids[0])); while (n_left_from > 0) { @@ -250,13 +255,13 @@ ip4_icmp_echo_request (vlib_main_t * vm, while (n_left_from > 2 && n_left_to_next > 2) { - vlib_buffer_t * p0, * p1; - ip4_header_t * ip0, * ip1; - icmp46_header_t * icmp0, * icmp1; + vlib_buffer_t *p0, *p1; + ip4_header_t *ip0, *ip1; + icmp46_header_t *icmp0, *icmp1; u32 bi0, src0, dst0; u32 bi1, src1, dst1; ip_csum_t sum0, sum1; - + bi0 = to_next[0] = from[0]; bi1 = to_next[1] = from[1]; @@ -264,7 +269,7 @@ ip4_icmp_echo_request (vlib_main_t * vm, n_left_from -= 2; to_next += 2; n_left_to_next -= 2; - + p0 = vlib_get_buffer (vm, bi0); p1 = vlib_get_buffer (vm, bi1); ip0 = vlib_buffer_get_current (p0); @@ -272,8 +277,10 @@ ip4_icmp_echo_request (vlib_main_t * vm, icmp0 = ip4_next_header (ip0); icmp1 = ip4_next_header (ip1); - vnet_buffer (p0)->sw_if_index[VLIB_RX] = vnet_main.local_interface_sw_if_index; - vnet_buffer (p1)->sw_if_index[VLIB_RX] = vnet_main.local_interface_sw_if_index; + vnet_buffer (p0)->sw_if_index[VLIB_RX] = + vnet_main.local_interface_sw_if_index; + vnet_buffer (p1)->sw_if_index[VLIB_RX] = + vnet_main.local_interface_sw_if_index; /* Update ICMP checksum. */ sum0 = icmp0->checksum; @@ -329,30 +336,31 @@ ip4_icmp_echo_request (vlib_main_t * vm, ASSERT (ip0->checksum == ip4_header_checksum (ip0)); ASSERT (ip1->checksum == ip4_header_checksum (ip1)); - p0->flags |= VNET_BUFFER_LOCALLY_ORIGINATED; - p1->flags |= VNET_BUFFER_LOCALLY_ORIGINATED; + p0->flags |= VNET_BUFFER_LOCALLY_ORIGINATED; + p1->flags |= VNET_BUFFER_LOCALLY_ORIGINATED; } - + while (n_left_from > 0 && n_left_to_next > 0) { - vlib_buffer_t * p0; - ip4_header_t * ip0; - icmp46_header_t * icmp0; + vlib_buffer_t *p0; + ip4_header_t *ip0; + icmp46_header_t *icmp0; u32 bi0, src0, dst0; ip_csum_t sum0; - + bi0 = to_next[0] = from[0]; from += 1; n_left_from -= 1; to_next += 1; n_left_to_next -= 1; - + p0 = vlib_get_buffer (vm, bi0); ip0 = vlib_buffer_get_current (p0); icmp0 = ip4_next_header (ip0); - vnet_buffer (p0)->sw_if_index[VLIB_RX] = vnet_main.local_interface_sw_if_index; + vnet_buffer (p0)->sw_if_index[VLIB_RX] = + vnet_main.local_interface_sw_if_index; /* Update ICMP checksum. */ sum0 = icmp0->checksum; @@ -384,19 +392,19 @@ ip4_icmp_echo_request (vlib_main_t * vm, ASSERT (ip0->checksum == ip4_header_checksum (ip0)); - p0->flags |= VNET_BUFFER_LOCALLY_ORIGINATED; + p0->flags |= VNET_BUFFER_LOCALLY_ORIGINATED; } - + vlib_put_next_frame (vm, node, next, n_left_to_next); } vlib_error_count (vm, ip4_icmp_input_node.index, - ICMP4_ERROR_ECHO_REPLIES_SENT, - frame->n_vectors); + ICMP4_ERROR_ECHO_REPLIES_SENT, frame->n_vectors); return frame->n_vectors; } +/* *INDENT-OFF* */ VLIB_REGISTER_NODE (ip4_icmp_echo_request_node,static) = { .function = ip4_icmp_echo_request, .name = "ip4-icmp-echo-request", @@ -410,153 +418,170 @@ VLIB_REGISTER_NODE (ip4_icmp_echo_request_node,static) = { [0] = "ip4-load-balance", }, }; +/* *INDENT-ON* */ -typedef enum { +typedef enum +{ IP4_ICMP_ERROR_NEXT_DROP, IP4_ICMP_ERROR_NEXT_LOOKUP, IP4_ICMP_ERROR_N_NEXT, } ip4_icmp_error_next_t; void -icmp4_error_set_vnet_buffer (vlib_buffer_t *b, u8 type, u8 code, u32 data) +icmp4_error_set_vnet_buffer (vlib_buffer_t * b, u8 type, u8 code, u32 data) { - vnet_buffer(b)->ip.icmp.type = type; - vnet_buffer(b)->ip.icmp.code = code; - vnet_buffer(b)->ip.icmp.data = data; + vnet_buffer (b)->ip.icmp.type = type; + vnet_buffer (b)->ip.icmp.code = code; + vnet_buffer (b)->ip.icmp.data = data; } static u8 icmp4_icmp_type_to_error (u8 type) { - switch (type) { - case ICMP4_destination_unreachable: - return ICMP4_ERROR_DEST_UNREACH_SENT; - case ICMP4_time_exceeded: - return ICMP4_ERROR_TTL_EXPIRE_SENT; - case ICMP4_parameter_problem: - return ICMP4_ERROR_PARAM_PROBLEM_SENT; - default: - return ICMP4_ERROR_DROP; - } + switch (type) + { + case ICMP4_destination_unreachable: + return ICMP4_ERROR_DEST_UNREACH_SENT; + case ICMP4_time_exceeded: + return ICMP4_ERROR_TTL_EXPIRE_SENT; + case ICMP4_parameter_problem: + return ICMP4_ERROR_PARAM_PROBLEM_SENT; + default: + return ICMP4_ERROR_DROP; + } } static uword ip4_icmp_error (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) + vlib_node_runtime_t * node, vlib_frame_t * frame) { - u32 * from, * to_next; + u32 *from, *to_next; uword n_left_from, n_left_to_next; ip4_icmp_error_next_t next_index; ip4_main_t *im = &ip4_main; - ip_lookup_main_t * lm = &im->lookup_main; + ip_lookup_main_t *lm = &im->lookup_main; - from = vlib_frame_vector_args(frame); + from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; next_index = node->cached_next_index; if (node->flags & VLIB_NODE_FLAG_TRACE) vlib_trace_frame_buffers_only (vm, node, from, frame->n_vectors, - /* stride */ 1, sizeof (icmp_input_trace_t)); - - while (n_left_from > 0) { - vlib_get_next_frame(vm, node, next_index, to_next, n_left_to_next); - - while (n_left_from > 0 && n_left_to_next > 0) { - u32 pi0 = from[0]; - u32 next0 = IP4_ICMP_ERROR_NEXT_LOOKUP; - u8 error0 = ICMP4_ERROR_NONE; - vlib_buffer_t * p0; - ip4_header_t * ip0, * out_ip0; - icmp46_header_t * icmp0; - u32 sw_if_index0, if_add_index0; - ip_csum_t sum; - - /* Speculatively enqueue p0 to the current next frame */ - to_next[0] = pi0; - from += 1; - to_next += 1; - n_left_from -= 1; - n_left_to_next -= 1; - - p0 = vlib_get_buffer(vm, pi0); - ip0 = vlib_buffer_get_current(p0); - sw_if_index0 = vnet_buffer(p0)->sw_if_index[VLIB_RX]; - - /* - * RFC1812 says to keep as much of the original packet as - * possible within the minimum MTU (576). We cheat "a little" - * here by keeping whatever fits in the first buffer, to be more - * efficient - */ - if (PREDICT_FALSE(p0->total_length_not_including_first_buffer)) { - /* clear current_length of all other buffers in chain */ - vlib_buffer_t *b = p0; - p0->total_length_not_including_first_buffer = 0; - while (b->flags & VLIB_BUFFER_NEXT_PRESENT) { - b = vlib_get_buffer (vm, b->next_buffer); - b->current_length = 0; - } - } - p0->current_length = p0->current_length > 576 ? 576 : p0->current_length; - - /* Add IP header and ICMPv4 header including a 4 byte data field */ - vlib_buffer_advance(p0, - -sizeof(ip4_header_t)-sizeof(icmp46_header_t)-4); - out_ip0 = vlib_buffer_get_current(p0); - icmp0 = (icmp46_header_t *) &out_ip0[1]; - - /* Fill ip header fields */ - out_ip0->ip_version_and_header_length = 0x45; - out_ip0->tos = 0; - out_ip0->length = clib_host_to_net_u16(p0->current_length); - out_ip0->fragment_id = 0; - out_ip0->flags_and_fragment_offset = 0; - out_ip0->ttl = 0xff; - out_ip0->protocol = IP_PROTOCOL_ICMP; - out_ip0->dst_address = ip0->src_address; - if_add_index0 = ~0; - if (PREDICT_TRUE (vec_len (lm->if_address_pool_index_by_sw_if_index) - > sw_if_index0)) - if_add_index0 = - lm->if_address_pool_index_by_sw_if_index[sw_if_index0]; - if (PREDICT_TRUE(if_add_index0 != ~0)) { - ip_interface_address_t *if_add = - pool_elt_at_index(lm->if_address_pool, if_add_index0); - ip4_address_t *if_ip = - ip_interface_address_get_address(lm, if_add); - out_ip0->src_address = *if_ip; - } else { - /* interface has no IP4 address - should not happen */ - next0 = IP4_ICMP_ERROR_NEXT_DROP; - error0 = ICMP4_ERROR_DROP; - } - out_ip0->checksum = ip4_header_checksum(out_ip0); - - /* Fill icmp header fields */ - icmp0->type = vnet_buffer(p0)->ip.icmp.type; - icmp0->code = vnet_buffer(p0)->ip.icmp.code; - *((u32 *)(icmp0 + 1)) = clib_host_to_net_u32(vnet_buffer(p0)->ip.icmp.data); - icmp0->checksum = 0; - sum = ip_incremental_checksum(0, icmp0, p0->current_length - sizeof(ip4_header_t)); - icmp0->checksum = ~ip_csum_fold(sum); - - /* Update error status */ - if (error0 == ICMP4_ERROR_NONE) - error0 = icmp4_icmp_type_to_error(icmp0->type); - vlib_error_count(vm, node->node_index, error0, 1); - - /* Verify speculative enqueue, maybe switch current next frame */ - vlib_validate_buffer_enqueue_x1(vm, node, next_index, - to_next, n_left_to_next, - pi0, next0); + /* stride */ 1, + sizeof (icmp_input_trace_t)); + + while (n_left_from > 0) + { + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + while (n_left_from > 0 && n_left_to_next > 0) + { + u32 pi0 = from[0]; + u32 next0 = IP4_ICMP_ERROR_NEXT_LOOKUP; + u8 error0 = ICMP4_ERROR_NONE; + vlib_buffer_t *p0; + ip4_header_t *ip0, *out_ip0; + icmp46_header_t *icmp0; + u32 sw_if_index0, if_add_index0; + ip_csum_t sum; + + /* Speculatively enqueue p0 to the current next frame */ + to_next[0] = pi0; + from += 1; + to_next += 1; + n_left_from -= 1; + n_left_to_next -= 1; + + p0 = vlib_get_buffer (vm, pi0); + ip0 = vlib_buffer_get_current (p0); + sw_if_index0 = vnet_buffer (p0)->sw_if_index[VLIB_RX]; + + /* + * RFC1812 says to keep as much of the original packet as + * possible within the minimum MTU (576). We cheat "a little" + * here by keeping whatever fits in the first buffer, to be more + * efficient + */ + if (PREDICT_FALSE (p0->total_length_not_including_first_buffer)) + { + /* clear current_length of all other buffers in chain */ + vlib_buffer_t *b = p0; + p0->total_length_not_including_first_buffer = 0; + while (b->flags & VLIB_BUFFER_NEXT_PRESENT) + { + b = vlib_get_buffer (vm, b->next_buffer); + b->current_length = 0; + } + } + p0->current_length = + p0->current_length > 576 ? 576 : p0->current_length; + + /* Add IP header and ICMPv4 header including a 4 byte data field */ + vlib_buffer_advance (p0, + -sizeof (ip4_header_t) - + sizeof (icmp46_header_t) - 4); + out_ip0 = vlib_buffer_get_current (p0); + icmp0 = (icmp46_header_t *) & out_ip0[1]; + + /* Fill ip header fields */ + out_ip0->ip_version_and_header_length = 0x45; + out_ip0->tos = 0; + out_ip0->length = clib_host_to_net_u16 (p0->current_length); + out_ip0->fragment_id = 0; + out_ip0->flags_and_fragment_offset = 0; + out_ip0->ttl = 0xff; + out_ip0->protocol = IP_PROTOCOL_ICMP; + out_ip0->dst_address = ip0->src_address; + if_add_index0 = ~0; + if (PREDICT_TRUE (vec_len (lm->if_address_pool_index_by_sw_if_index) + > sw_if_index0)) + if_add_index0 = + lm->if_address_pool_index_by_sw_if_index[sw_if_index0]; + if (PREDICT_TRUE (if_add_index0 != ~0)) + { + ip_interface_address_t *if_add = + pool_elt_at_index (lm->if_address_pool, if_add_index0); + ip4_address_t *if_ip = + ip_interface_address_get_address (lm, if_add); + out_ip0->src_address = *if_ip; + } + else + { + /* interface has no IP4 address - should not happen */ + next0 = IP4_ICMP_ERROR_NEXT_DROP; + error0 = ICMP4_ERROR_DROP; + } + out_ip0->checksum = ip4_header_checksum (out_ip0); + + /* Fill icmp header fields */ + icmp0->type = vnet_buffer (p0)->ip.icmp.type; + icmp0->code = vnet_buffer (p0)->ip.icmp.code; + *((u32 *) (icmp0 + 1)) = + clib_host_to_net_u32 (vnet_buffer (p0)->ip.icmp.data); + icmp0->checksum = 0; + sum = + ip_incremental_checksum (0, icmp0, + p0->current_length - + sizeof (ip4_header_t)); + icmp0->checksum = ~ip_csum_fold (sum); + + /* Update error status */ + if (error0 == ICMP4_ERROR_NONE) + error0 = icmp4_icmp_type_to_error (icmp0->type); + vlib_error_count (vm, node->node_index, error0, 1); + + /* Verify speculative enqueue, maybe switch current next frame */ + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, + to_next, n_left_to_next, + pi0, next0); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); } - vlib_put_next_frame(vm, node, next_index, n_left_to_next); - } return frame->n_vectors; } +/* *INDENT-OFF* */ VLIB_REGISTER_NODE (ip4_icmp_error_node) = { .function = ip4_icmp_error, .name = "ip4-icmp-error", @@ -573,12 +598,14 @@ VLIB_REGISTER_NODE (ip4_icmp_error_node) = { .format_trace = format_icmp_input_trace, }; +/* *INDENT-ON* */ -static uword unformat_icmp_type_and_code (unformat_input_t * input, va_list * args) +static uword +unformat_icmp_type_and_code (unformat_input_t * input, va_list * args) { - icmp46_header_t * h = va_arg (*args, icmp46_header_t *); - icmp4_main_t * cm = &icmp4_main; + icmp46_header_t *h = va_arg (*args, icmp46_header_t *); + icmp4_main_t *cm = &icmp4_main; u32 i; if (unformat_user (input, unformat_vlib_number_by_name, @@ -602,21 +629,19 @@ static uword unformat_icmp_type_and_code (unformat_input_t * input, va_list * ar static void icmp4_pg_edit_function (pg_main_t * pg, pg_stream_t * s, - pg_edit_group_t * g, - u32 * packets, - u32 n_packets) + pg_edit_group_t * g, u32 * packets, u32 n_packets) { - vlib_main_t * vm = vlib_get_main(); + vlib_main_t *vm = vlib_get_main (); u32 ip_offset, icmp_offset; icmp_offset = g->start_byte_offset; - ip_offset = (g-1)->start_byte_offset; + ip_offset = (g - 1)->start_byte_offset; while (n_packets >= 1) { - vlib_buffer_t * p0; - ip4_header_t * ip0; - icmp46_header_t * icmp0; + vlib_buffer_t *p0; + ip4_header_t *ip0; + icmp46_header_t *icmp0; u32 len0; p0 = vlib_get_buffer (vm, packets[0]); @@ -627,11 +652,13 @@ icmp4_pg_edit_function (pg_main_t * pg, ip0 = (void *) (p0->data + ip_offset); icmp0 = (void *) (p0->data + icmp_offset); len0 = clib_net_to_host_u16 (ip0->length) - ip4_header_bytes (ip0); - icmp0->checksum = ~ ip_csum_fold (ip_incremental_checksum (0, icmp0, len0)); + icmp0->checksum = + ~ip_csum_fold (ip_incremental_checksum (0, icmp0, len0)); } } -typedef struct { +typedef struct +{ pg_edit_t type, code; pg_edit_t checksum; } pg_icmp46_header_t; @@ -641,19 +668,19 @@ pg_icmp_header_init (pg_icmp46_header_t * p) { /* Initialize fields that are not bit fields in the IP header. */ #define _(f) pg_edit_init (&p->f, icmp46_header_t, f); - _ (type); - _ (code); - _ (checksum); + _(type); + _(code); + _(checksum); #undef _ } static uword unformat_pg_icmp_header (unformat_input_t * input, va_list * args) { - pg_stream_t * s = va_arg (*args, pg_stream_t *); - pg_icmp46_header_t * p; + pg_stream_t *s = va_arg (*args, pg_stream_t *); + pg_icmp46_header_t *p; u32 group_index; - + p = pg_create_edit_group (s, sizeof (p[0]), sizeof (icmp46_header_t), &group_index); pg_icmp_header_init (p); @@ -663,7 +690,7 @@ unformat_pg_icmp_header (unformat_input_t * input, va_list * args) { icmp46_header_t tmp; - if (! unformat (input, "ICMP %U", unformat_icmp_type_and_code, &tmp)) + if (!unformat (input, "ICMP %U", unformat_icmp_type_and_code, &tmp)) goto error; pg_edit_set_fixed (&p->type, tmp.type); @@ -674,8 +701,7 @@ unformat_pg_icmp_header (unformat_input_t * input, va_list * args) while (1) { if (unformat (input, "checksum %U", - unformat_pg_edit, - unformat_pg_number, &p->checksum)) + unformat_pg_edit, unformat_pg_number, &p->checksum)) ; /* Can't parse input: try next protocol level. */ @@ -683,30 +709,30 @@ unformat_pg_icmp_header (unformat_input_t * input, va_list * args) break; } - if (! unformat_user (input, unformat_pg_payload, s)) + if (!unformat_user (input, unformat_pg_payload, s)) goto error; if (p->checksum.type == PG_EDIT_UNSPECIFIED) { - pg_edit_group_t * g = pg_stream_get_group (s, group_index); + pg_edit_group_t *g = pg_stream_get_group (s, group_index); g->edit_function = icmp4_pg_edit_function; g->edit_function_opaque = 0; } return 1; - error: +error: /* Free up any edits we may have added. */ pg_free_edit_group (s); return 0; } -void ip4_icmp_register_type (vlib_main_t * vm, icmp4_type_t type, - u32 node_index) +void +ip4_icmp_register_type (vlib_main_t * vm, icmp4_type_t type, u32 node_index) { - icmp4_main_t * im = &icmp4_main; + icmp4_main_t *im = &icmp4_main; - ASSERT ((int)type < ARRAY_LEN (im->ip4_input_next_index_by_type)); + ASSERT ((int) type < ARRAY_LEN (im->ip4_input_next_index_by_type)); im->ip4_input_next_index_by_type[type] = vlib_node_add_next (vm, ip4_icmp_input_node.index, node_index); } @@ -714,10 +740,10 @@ void ip4_icmp_register_type (vlib_main_t * vm, icmp4_type_t type, static clib_error_t * icmp4_init (vlib_main_t * vm) { - ip_main_t * im = &ip_main; - ip_protocol_info_t * pi; - icmp4_main_t * cm = &icmp4_main; - clib_error_t * error; + ip_main_t *im = &ip_main; + ip_protocol_info_t *pi; + icmp4_main_t *cm = &icmp4_main; + clib_error_t *error; error = vlib_call_init_function (vm, ip_main_init); @@ -739,12 +765,20 @@ icmp4_init (vlib_main_t * vm) #undef _ memset (cm->ip4_input_next_index_by_type, - ICMP_INPUT_NEXT_ERROR, - sizeof (cm->ip4_input_next_index_by_type)); + ICMP_INPUT_NEXT_ERROR, sizeof (cm->ip4_input_next_index_by_type)); - ip4_icmp_register_type (vm, ICMP4_echo_request, ip4_icmp_echo_request_node.index); + ip4_icmp_register_type (vm, ICMP4_echo_request, + ip4_icmp_echo_request_node.index); return 0; } VLIB_INIT_FUNCTION (icmp4_init); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/icmp4.h b/vnet/vnet/ip/icmp4.h index 07fe52d11ea..ae805148c89 100644 --- a/vnet/vnet/ip/icmp4.h +++ b/vnet/vnet/ip/icmp4.h @@ -31,18 +31,30 @@ _ (PARAM_PROBLEM_SENT, "parameter problem response sent") \ _ (DROP, "error message dropped") -typedef enum { +typedef enum +{ #define _(f,s) ICMP4_ERROR_##f, foreach_icmp4_error #undef _ } icmp4_error_t; -typedef struct { +typedef struct +{ u8 packet_data[64]; } icmp_input_trace_t; format_function_t format_icmp4_input_trace; -void ip4_icmp_register_type (vlib_main_t * vm, icmp4_type_t type, u32 node_index); -void icmp4_error_set_vnet_buffer (vlib_buffer_t *b, u8 type, u8 code, u32 data); +void ip4_icmp_register_type (vlib_main_t * vm, icmp4_type_t type, + u32 node_index); +void icmp4_error_set_vnet_buffer (vlib_buffer_t * b, u8 type, u8 code, + u32 data); #endif /* included_vnet_icmp4_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/icmp46_packet.h b/vnet/vnet/ip/icmp46_packet.h index fa3fed4d081..a86cbd57bdb 100644 --- a/vnet/vnet/ip/icmp46_packet.h +++ b/vnet/vnet/ip/icmp46_packet.h @@ -158,38 +158,41 @@ _ (node_information_response, 1, failed) \ _ (node_information_response, 2, unknown_request) -typedef enum { +typedef enum +{ #define _(n,f) ICMP4_##f = n, foreach_icmp4_type #undef _ } icmp4_type_t; -typedef enum { +typedef enum +{ #define _(t,n,f) ICMP4_##t##_##f = n, foreach_icmp4_code #undef _ } icmp4_code_t; -typedef enum { +typedef enum +{ #define _(n,f) ICMP6_##f = n, foreach_icmp6_type #undef _ } icmp6_type_t; -typedef enum { +typedef enum +{ #define _(t,n,f) ICMP6_##t##_##f = n, foreach_icmp6_code #undef _ } icmp6_code_t; -typedef CLIB_PACKED (struct { - u8 type; - - u8 code; - - /* IP checksum of icmp header plus data which follows. */ - u16 checksum; -}) icmp46_header_t; +typedef CLIB_PACKED (struct + { + u8 type; + u8 code; + /* IP checksum of icmp header plus data which follows. */ + u16 checksum; + }) icmp46_header_t; /* ip6 neighbor discovery */ #define foreach_icmp6_neighbor_discovery_option \ @@ -225,168 +228,171 @@ typedef CLIB_PACKED (struct { _ (138, card_request) \ _ (139, card_reply) -typedef enum icmp6_neighbor_discovery_option_type { +typedef enum icmp6_neighbor_discovery_option_type +{ #define _(n,f) ICMP6_NEIGHBOR_DISCOVERY_OPTION_##f = n, foreach_icmp6_neighbor_discovery_option #undef _ } icmp6_neighbor_discovery_option_type_t; -typedef CLIB_PACKED (struct { - /* Option type. */ - u8 type; - - /* Length of this header plus option data in 8 byte units. */ - u8 n_data_u64s; - - /* Option data follows. */ - u8 data[0]; -}) icmp6_neighbor_discovery_option_header_t; - -typedef CLIB_PACKED (struct { - icmp6_neighbor_discovery_option_header_t header; - u8 dst_address_length; - u8 flags; +typedef CLIB_PACKED (struct + { + /* Option type. */ + u8 type; + /* Length of this header plus option data in 8 byte units. */ + u8 n_data_u64s; + /* Option data follows. */ + u8 data[0]; + }) icmp6_neighbor_discovery_option_header_t; + +typedef CLIB_PACKED (struct + { + icmp6_neighbor_discovery_option_header_t header; + u8 dst_address_length; + u8 flags; #define ICMP6_NEIGHBOR_DISCOVERY_PREFIX_INFORMATION_FLAG_ON_LINK (1 << 7) #define ICMP6_NEIGHBOR_DISCOVERY_PREFIX_INFORMATION_AUTO (1 << 6) - u32 valid_time; - u32 preferred_time; - u32 unused; - ip6_address_t dst_address; -}) icmp6_neighbor_discovery_prefix_information_option_t; - -typedef CLIB_PACKED (struct { - u8 type; - u8 aux_data_len_u32s; - u16 num_sources; - ip6_address_t mcast_addr; - ip6_address_t source_addr[0]; -}) icmp6_multicast_address_record_t; - -typedef CLIB_PACKED (struct { - ip6_hop_by_hop_ext_t ext_hdr; - ip6_router_alert_option_t alert; - ip6_padN_option_t pad; - icmp46_header_t icmp; - u16 rsvd; - u16 num_addr_records; - icmp6_multicast_address_record_t records[0]; -}) icmp6_multicast_listener_report_header_t; - -typedef CLIB_PACKED (struct { - icmp6_neighbor_discovery_option_header_t header; - u8 reserved[6]; - /* IP6 header plus payload follows. */ - u8 data[0]; -}) icmp6_neighbor_discovery_redirected_header_option_t; - -typedef CLIB_PACKED (struct { - icmp6_neighbor_discovery_option_header_t header; - u16 unused; - u32 mtu; -}) icmp6_neighbor_discovery_mtu_option_t; - -typedef CLIB_PACKED (struct { - icmp6_neighbor_discovery_option_header_t header; - u8 ethernet_address[6]; -}) icmp6_neighbor_discovery_ethernet_link_layer_address_option_t; - -typedef CLIB_PACKED (struct { - icmp6_neighbor_discovery_option_header_t header; - u8 max_l2_address[6+8]; -}) icmp6_neighbor_discovery_max_link_layer_address_option_t; + u32 valid_time; + u32 preferred_time; + u32 unused; ip6_address_t dst_address; + }) icmp6_neighbor_discovery_prefix_information_option_t; + +typedef CLIB_PACKED (struct + { + u8 type; + u8 aux_data_len_u32s; + u16 num_sources; + ip6_address_t mcast_addr; ip6_address_t source_addr[0]; + }) icmp6_multicast_address_record_t; + +typedef CLIB_PACKED (struct + { + ip6_hop_by_hop_ext_t ext_hdr; + ip6_router_alert_option_t alert; + ip6_padN_option_t pad; + icmp46_header_t icmp; + u16 rsvd; + u16 num_addr_records; + icmp6_multicast_address_record_t records[0]; + }) icmp6_multicast_listener_report_header_t; + +typedef CLIB_PACKED (struct + { + icmp6_neighbor_discovery_option_header_t header; + u8 reserved[6]; + /* IP6 header plus payload follows. */ + u8 data[0]; + }) icmp6_neighbor_discovery_redirected_header_option_t; + +typedef CLIB_PACKED (struct + { + icmp6_neighbor_discovery_option_header_t header; + u16 unused; u32 mtu; + }) icmp6_neighbor_discovery_mtu_option_t; + +typedef CLIB_PACKED (struct + { + icmp6_neighbor_discovery_option_header_t header; + u8 ethernet_address[6]; + }) + icmp6_neighbor_discovery_ethernet_link_layer_address_option_t; + +typedef CLIB_PACKED (struct + { + icmp6_neighbor_discovery_option_header_t header; + u8 max_l2_address[6 + 8]; + }) + icmp6_neighbor_discovery_max_link_layer_address_option_t; /* Generic neighbor discover header. Used for router solicitations, etc. */ -typedef CLIB_PACKED (struct { - icmp46_header_t icmp; - - u32 reserved_must_be_zero; -}) icmp6_neighbor_discovery_header_t; +typedef CLIB_PACKED (struct + { + icmp46_header_t icmp; u32 reserved_must_be_zero; + }) icmp6_neighbor_discovery_header_t; /* Router advertisement packet formats. */ -typedef CLIB_PACKED (struct { - icmp46_header_t icmp; - - /* Current hop limit to use for outgoing packets. */ - u8 current_hop_limit; - - u8 flags; +typedef CLIB_PACKED (struct + { + icmp46_header_t icmp; + /* Current hop limit to use for outgoing packets. */ + u8 current_hop_limit; + u8 flags; #define ICMP6_ROUTER_DISCOVERY_FLAG_ADDRESS_CONFIG_VIA_DHCP (1 << 7) #define ICMP6_ROUTER_DISCOVERY_FLAG_OTHER_CONFIG_VIA_DHCP (1 << 6) - - /* Zero means unspecified. */ - u16 router_lifetime_in_sec; - - /* Zero means unspecified. */ - u32 neighbor_reachable_time_in_msec; - - /* Zero means unspecified. */ - u32 time_in_msec_between_retransmitted_neighbor_solicitations; - - /* Options that may follow: source_link_layer_address, mtu, prefix_information. */ -}) icmp6_router_advertisement_header_t; + /* Zero means unspecified. */ + u16 router_lifetime_in_sec; + /* Zero means unspecified. */ + u32 neighbor_reachable_time_in_msec; + /* Zero means unspecified. */ + u32 + time_in_msec_between_retransmitted_neighbor_solicitations; + /* Options that may follow: source_link_layer_address, mtu, prefix_information. */ + }) icmp6_router_advertisement_header_t; /* Neighbor solicitation/advertisement header. */ -typedef CLIB_PACKED (struct { - icmp46_header_t icmp; - - /* Zero for solicitation; flags for advertisement. */ - u32 advertisement_flags; - /* Set when sent by a router. */ +typedef CLIB_PACKED (struct + { + icmp46_header_t icmp; + /* Zero for solicitation; flags for advertisement. */ + u32 advertisement_flags; + /* Set when sent by a router. */ #define ICMP6_NEIGHBOR_ADVERTISEMENT_FLAG_ROUTER (1 << 31) - /* Set when response to solicitation. */ + /* Set when response to solicitation. */ #define ICMP6_NEIGHBOR_ADVERTISEMENT_FLAG_SOLICITED (1 << 30) #define ICMP6_NEIGHBOR_ADVERTISEMENT_FLAG_OVERRIDE (1 << 29) - - ip6_address_t target_address; - - /* Options that may follow: source_link_layer_address - (for solicitation) target_link_layer_address (for advertisement). */ -}) icmp6_neighbor_solicitation_or_advertisement_header_t; - -typedef CLIB_PACKED (struct { - icmp46_header_t icmp; - - u32 reserved_must_be_zero; - - /* Better next hop to use for given destination. */ - ip6_address_t better_next_hop_address; - - ip6_address_t dst_address; - - /* Options that may follow: target_link_layer_address, - redirected_header. */ -}) icmp6_redirect_header_t; + ip6_address_t target_address; + /* Options that may follow: source_link_layer_address + (for solicitation) target_link_layer_address (for advertisement). */ + }) icmp6_neighbor_solicitation_or_advertisement_header_t; + +typedef CLIB_PACKED (struct + { + icmp46_header_t icmp; + u32 reserved_must_be_zero; + /* Better next hop to use for given destination. */ + ip6_address_t better_next_hop_address; + ip6_address_t dst_address; + /* Options that may follow: target_link_layer_address, + redirected_header. */ + }) icmp6_redirect_header_t; /* Solicitation/advertisement packet format for ethernet. */ -typedef CLIB_PACKED (struct { - ip6_header_t ip; - - icmp6_neighbor_solicitation_or_advertisement_header_t neighbor; - - icmp6_neighbor_discovery_ethernet_link_layer_address_option_t link_layer_option; -}) icmp6_neighbor_solicitation_header_t; +typedef CLIB_PACKED (struct + { + ip6_header_t ip; + icmp6_neighbor_solicitation_or_advertisement_header_t + neighbor; + icmp6_neighbor_discovery_ethernet_link_layer_address_option_t + link_layer_option; + }) icmp6_neighbor_solicitation_header_t; /* Router solicitation packet format for ethernet. */ -typedef CLIB_PACKED (struct { - ip6_header_t ip; - icmp6_neighbor_discovery_header_t neighbor; - icmp6_neighbor_discovery_ethernet_link_layer_address_option_t link_layer_option; -}) icmp6_router_solicitation_header_t; +typedef CLIB_PACKED (struct + { + ip6_header_t ip; + icmp6_neighbor_discovery_header_t neighbor; + icmp6_neighbor_discovery_ethernet_link_layer_address_option_t + link_layer_option; + }) icmp6_router_solicitation_header_t; /* router advertisement packet format for ethernet. */ -typedef CLIB_PACKED (struct { - ip6_header_t ip; - icmp6_router_advertisement_header_t router; - icmp6_neighbor_discovery_ethernet_link_layer_address_option_t link_layer_option; - icmp6_neighbor_discovery_mtu_option_t mtu_option; - icmp6_neighbor_discovery_prefix_information_option_t prefix[0]; -}) icmp6_router_advertisement_packet_t; +typedef CLIB_PACKED (struct + { + ip6_header_t ip; + icmp6_router_advertisement_header_t router; + icmp6_neighbor_discovery_ethernet_link_layer_address_option_t + link_layer_option; + icmp6_neighbor_discovery_mtu_option_t mtu_option; + icmp6_neighbor_discovery_prefix_information_option_t + prefix[0]; + }) icmp6_router_advertisement_packet_t; /* multicast listener report packet format for ethernet. */ -typedef CLIB_PACKED (struct { - ip6_header_t ip; - icmp6_multicast_listener_report_header_t report_hdr; -}) icmp6_multicast_listener_report_packet_t; +typedef CLIB_PACKED (struct + { + ip6_header_t ip; + icmp6_multicast_listener_report_header_t report_hdr; + }) icmp6_multicast_listener_report_packet_t; #endif /* included_vnet_icmp46_packet_h */ diff --git a/vnet/vnet/ip/icmp6.c b/vnet/vnet/ip/icmp6.c index a04373a3a7e..70696d0c6cb 100644 --- a/vnet/vnet/ip/icmp6.c +++ b/vnet/vnet/ip/icmp6.c @@ -41,11 +41,12 @@ #include <vnet/ip/ip.h> #include <vnet/pg/pg.h> -static u8 * format_ip6_icmp_type_and_code (u8 * s, va_list * args) +static u8 * +format_ip6_icmp_type_and_code (u8 * s, va_list * args) { icmp6_type_t type = va_arg (*args, int); u8 code = va_arg (*args, int); - char * t = 0; + char *t = 0; #define _(n,f) case n: t = #f; break; @@ -59,7 +60,7 @@ static u8 * format_ip6_icmp_type_and_code (u8 * s, va_list * args) #undef _ - if (! t) + if (!t) return format (s, "unknown 0x%x", type); s = format (s, "%s", t); @@ -80,9 +81,10 @@ static u8 * format_ip6_icmp_type_and_code (u8 * s, va_list * args) return s; } -static u8 * format_icmp6_header (u8 * s, va_list * args) +static u8 * +format_icmp6_header (u8 * s, va_list * args) { - icmp46_header_t * icmp = va_arg (*args, icmp46_header_t *); + icmp46_header_t *icmp = va_arg (*args, icmp46_header_t *); u32 max_header_bytes = va_arg (*args, u32); /* Nothing to do. */ @@ -94,47 +96,49 @@ static u8 * format_icmp6_header (u8 * s, va_list * args) clib_net_to_host_u16 (icmp->checksum)); if (max_header_bytes >= - sizeof(icmp6_neighbor_solicitation_or_advertisement_header_t) && + sizeof (icmp6_neighbor_solicitation_or_advertisement_header_t) && (icmp->type == ICMP6_neighbor_solicitation || icmp->type == ICMP6_neighbor_advertisement)) - { - icmp6_neighbor_solicitation_or_advertisement_header_t *icmp6_nd = - (icmp6_neighbor_solicitation_or_advertisement_header_t *) icmp; - s = format (s, "\n target address %U", - format_ip6_address, &icmp6_nd->target_address); - } + { + icmp6_neighbor_solicitation_or_advertisement_header_t *icmp6_nd = + (icmp6_neighbor_solicitation_or_advertisement_header_t *) icmp; + s = format (s, "\n target address %U", + format_ip6_address, &icmp6_nd->target_address); + } return s; } -u8 * format_icmp6_input_trace (u8 * s, va_list * va) +u8 * +format_icmp6_input_trace (u8 * s, va_list * va) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*va, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*va, vlib_node_t *); - icmp6_input_trace_t * t = va_arg (*va, icmp6_input_trace_t *); + icmp6_input_trace_t *t = va_arg (*va, icmp6_input_trace_t *); s = format (s, "%U", - format_ip6_header, - t->packet_data, sizeof (t->packet_data)); + format_ip6_header, t->packet_data, sizeof (t->packet_data)); return s; } -static char * icmp_error_strings[] = { +static char *icmp_error_strings[] = { #define _(f,s) s, foreach_icmp6_error #undef _ }; -typedef enum { +typedef enum +{ ICMP_INPUT_NEXT_DROP, ICMP_INPUT_N_NEXT, } icmp_input_next_t; -typedef struct { - uword * type_and_code_by_name; +typedef struct +{ + uword *type_and_code_by_name; - uword * type_by_name; + uword *type_by_name; /* Vector dispatch table indexed by [icmp type]. */ u8 input_next_index_by_type[256]; @@ -152,17 +156,16 @@ icmp6_main_t icmp6_main; static uword ip6_icmp_input (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) + vlib_node_runtime_t * node, vlib_frame_t * frame) { - icmp6_main_t * im = &icmp6_main; - u32 * from, * to_next; + icmp6_main_t *im = &icmp6_main; + u32 *from, *to_next; u32 n_left_from, n_left_to_next, next_index; from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; next_index = node->cached_next_index; - + if (node->flags & VLIB_NODE_FLAG_TRACE) vlib_trace_frame_buffers_only (vm, node, from, frame->n_vectors, /* stride */ 1, @@ -174,19 +177,19 @@ ip6_icmp_input (vlib_main_t * vm, while (n_left_from > 0 && n_left_to_next > 0) { - vlib_buffer_t * b0; - ip6_header_t * ip0; - icmp46_header_t * icmp0; + vlib_buffer_t *b0; + ip6_header_t *ip0; + icmp46_header_t *icmp0; icmp6_type_t type0; u32 bi0, next0, error0, len0; - + bi0 = to_next[0] = from[0]; from += 1; n_left_from -= 1; to_next += 1; n_left_to_next -= 1; - + b0 = vlib_get_buffer (vm, bi0); ip0 = vlib_buffer_get_current (b0); icmp0 = ip6_next_header (ip0); @@ -195,18 +198,28 @@ ip6_icmp_input (vlib_main_t * vm, error0 = ICMP6_ERROR_NONE; next0 = im->input_next_index_by_type[type0]; - error0 = next0 == ICMP_INPUT_NEXT_DROP ? ICMP6_ERROR_UNKNOWN_TYPE : error0; + error0 = + next0 == ICMP_INPUT_NEXT_DROP ? ICMP6_ERROR_UNKNOWN_TYPE : error0; /* Check code is valid for type. */ - error0 = icmp0->code > im->max_valid_code_by_type[type0] ? ICMP6_ERROR_INVALID_CODE_FOR_TYPE : error0; + error0 = + icmp0->code > + im->max_valid_code_by_type[type0] ? + ICMP6_ERROR_INVALID_CODE_FOR_TYPE : error0; /* Checksum is already validated by ip6_local node so we don't need to check that. */ /* Check that hop limit == 255 for certain types. */ - error0 = ip0->hop_limit < im->min_valid_hop_limit_by_type[type0] ? ICMP6_ERROR_INVALID_HOP_LIMIT_FOR_TYPE : error0; + error0 = + ip0->hop_limit < + im->min_valid_hop_limit_by_type[type0] ? + ICMP6_ERROR_INVALID_HOP_LIMIT_FOR_TYPE : error0; len0 = clib_net_to_host_u16 (ip0->payload_length); - error0 = len0 < im->min_valid_length_by_type[type0] ? ICMP6_ERROR_LENGTH_TOO_SMALL_FOR_TYPE : error0; + error0 = + len0 < + im->min_valid_length_by_type[type0] ? + ICMP6_ERROR_LENGTH_TOO_SMALL_FOR_TYPE : error0; b0->error = node->errors[error0]; @@ -216,13 +229,14 @@ ip6_icmp_input (vlib_main_t * vm, to_next, n_left_to_next, bi0, next0); } - + vlib_put_next_frame (vm, node, next_index, n_left_to_next); } return frame->n_vectors; } +/* *INDENT-OFF* */ VLIB_REGISTER_NODE (ip6_icmp_input_node) = { .function = ip6_icmp_input, .name = "ip6-icmp-input", @@ -239,8 +253,10 @@ VLIB_REGISTER_NODE (ip6_icmp_input_node) = { [ICMP_INPUT_NEXT_DROP] = "error-drop", }, }; +/* *INDENT-ON* */ -typedef enum { +typedef enum +{ ICMP6_ECHO_REQUEST_NEXT_LOOKUP, ICMP6_ECHO_REQUEST_NEXT_OUTPUT, ICMP6_ECHO_REQUEST_N_NEXT, @@ -248,17 +264,16 @@ typedef enum { static uword ip6_icmp_echo_request (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) + vlib_node_runtime_t * node, vlib_frame_t * frame) { - u32 * from, * to_next; + u32 *from, *to_next; u32 n_left_from, n_left_to_next, next_index; - ip6_main_t * im = &ip6_main; + ip6_main_t *im = &ip6_main; from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; next_index = node->cached_next_index; - + if (node->flags & VLIB_NODE_FLAG_TRACE) vlib_trace_frame_buffers_only (vm, node, from, frame->n_vectors, /* stride */ 1, @@ -270,16 +285,16 @@ ip6_icmp_echo_request (vlib_main_t * vm, while (n_left_from > 2 && n_left_to_next > 2) { - vlib_buffer_t * p0, * p1; - ip6_header_t * ip0, * ip1; - icmp46_header_t * icmp0, * icmp1; + vlib_buffer_t *p0, *p1; + ip6_header_t *ip0, *ip1; + icmp46_header_t *icmp0, *icmp1; ip6_address_t tmp0, tmp1; ip_csum_t sum0, sum1; u32 bi0, bi1; - u32 fib_index0, fib_index1; - u32 next0 = ICMP6_ECHO_REQUEST_NEXT_LOOKUP; - u32 next1 = ICMP6_ECHO_REQUEST_NEXT_LOOKUP; - + u32 fib_index0, fib_index1; + u32 next0 = ICMP6_ECHO_REQUEST_NEXT_LOOKUP; + u32 next1 = ICMP6_ECHO_REQUEST_NEXT_LOOKUP; + bi0 = to_next[0] = from[0]; bi1 = to_next[1] = from[1]; @@ -287,7 +302,7 @@ ip6_icmp_echo_request (vlib_main_t * vm, n_left_from -= 2; to_next += 2; n_left_to_next -= 2; - + p0 = vlib_get_buffer (vm, bi0); p1 = vlib_get_buffer (vm, bi1); ip0 = vlib_buffer_get_current (p0); @@ -338,14 +353,14 @@ ip6_icmp_echo_request (vlib_main_t * vm, clib_memcpy (tmp_mac, eth0->dst_address, 6); clib_memcpy (eth0->dst_address, eth0->src_address, 6); clib_memcpy (eth0->src_address, tmp_mac, 6); - vnet_buffer(p0)->sw_if_index[VLIB_TX] = - vnet_buffer (p0)->sw_if_index[VLIB_RX]; + vnet_buffer (p0)->sw_if_index[VLIB_TX] = + vnet_buffer (p0)->sw_if_index[VLIB_RX]; next0 = ICMP6_ECHO_REQUEST_NEXT_OUTPUT; } else { /* Determine the correct lookup fib indices... */ - fib_index0 = vec_elt (im->fib_index_by_sw_if_index, + fib_index0 = vec_elt (im->fib_index_by_sw_if_index, vnet_buffer (p0)->sw_if_index[VLIB_RX]); vnet_buffer (p0)->sw_if_index[VLIB_TX] = fib_index0; } @@ -362,48 +377,48 @@ ip6_icmp_echo_request (vlib_main_t * vm, clib_memcpy (tmp_mac, eth1->dst_address, 6); clib_memcpy (eth1->dst_address, eth1->src_address, 6); clib_memcpy (eth1->src_address, tmp_mac, 6); - vnet_buffer(p1)->sw_if_index[VLIB_TX] = - vnet_buffer (p1)->sw_if_index[VLIB_RX]; + vnet_buffer (p1)->sw_if_index[VLIB_TX] = + vnet_buffer (p1)->sw_if_index[VLIB_RX]; next1 = ICMP6_ECHO_REQUEST_NEXT_OUTPUT; } else { /* Determine the correct lookup fib indices... */ - fib_index1 = vec_elt (im->fib_index_by_sw_if_index, + fib_index1 = vec_elt (im->fib_index_by_sw_if_index, vnet_buffer (p1)->sw_if_index[VLIB_RX]); vnet_buffer (p1)->sw_if_index[VLIB_TX] = fib_index1; } - vnet_buffer (p0)->sw_if_index[VLIB_RX] - = vnet_main.local_interface_sw_if_index; - vnet_buffer (p1)->sw_if_index[VLIB_RX] - = vnet_main.local_interface_sw_if_index; + vnet_buffer (p0)->sw_if_index[VLIB_RX] + = vnet_main.local_interface_sw_if_index; + vnet_buffer (p1)->sw_if_index[VLIB_RX] + = vnet_main.local_interface_sw_if_index; - /* verify speculative enqueues, maybe switch current next frame */ - /* if next0==next1==next_index then nothing special needs to be done */ - vlib_validate_buffer_enqueue_x2 (vm, node, next_index, - to_next, n_left_to_next, - bi0, bi1, next0, next1); + /* verify speculative enqueues, maybe switch current next frame */ + /* if next0==next1==next_index then nothing special needs to be done */ + vlib_validate_buffer_enqueue_x2 (vm, node, next_index, + to_next, n_left_to_next, + bi0, bi1, next0, next1); } - + while (n_left_from > 0 && n_left_to_next > 0) { - vlib_buffer_t * p0; - ip6_header_t * ip0; - icmp46_header_t * icmp0; + vlib_buffer_t *p0; + ip6_header_t *ip0; + icmp46_header_t *icmp0; u32 bi0; ip6_address_t tmp0; ip_csum_t sum0; - u32 fib_index0; - u32 next0 = ICMP6_ECHO_REQUEST_NEXT_LOOKUP; - + u32 fib_index0; + u32 next0 = ICMP6_ECHO_REQUEST_NEXT_LOOKUP; + bi0 = to_next[0] = from[0]; from += 1; n_left_from -= 1; to_next += 1; n_left_to_next -= 1; - + p0 = vlib_get_buffer (vm, bi0); ip0 = vlib_buffer_get_current (p0); icmp0 = ip6_next_header (ip0); @@ -438,35 +453,35 @@ ip6_icmp_echo_request (vlib_main_t * vm, clib_memcpy (tmp_mac, eth0->dst_address, 6); clib_memcpy (eth0->dst_address, eth0->src_address, 6); clib_memcpy (eth0->src_address, tmp_mac, 6); - vnet_buffer(p0)->sw_if_index[VLIB_TX] = - vnet_buffer (p0)->sw_if_index[VLIB_RX]; + vnet_buffer (p0)->sw_if_index[VLIB_TX] = + vnet_buffer (p0)->sw_if_index[VLIB_RX]; next0 = ICMP6_ECHO_REQUEST_NEXT_OUTPUT; } else { - fib_index0 = vec_elt (im->fib_index_by_sw_if_index, + fib_index0 = vec_elt (im->fib_index_by_sw_if_index, vnet_buffer (p0)->sw_if_index[VLIB_RX]); vnet_buffer (p0)->sw_if_index[VLIB_TX] = fib_index0; } - vnet_buffer (p0)->sw_if_index[VLIB_RX] - = vnet_main.local_interface_sw_if_index; + vnet_buffer (p0)->sw_if_index[VLIB_RX] + = vnet_main.local_interface_sw_if_index; - /* Verify speculative enqueue, maybe switch current next frame */ - vlib_validate_buffer_enqueue_x1 (vm, node, next_index, + /* Verify speculative enqueue, maybe switch current next frame */ + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, n_left_to_next, bi0, next0); } - + vlib_put_next_frame (vm, node, next_index, n_left_to_next); } vlib_error_count (vm, ip6_icmp_input_node.index, - ICMP6_ERROR_ECHO_REPLIES_SENT, - frame->n_vectors); + ICMP6_ERROR_ECHO_REPLIES_SENT, frame->n_vectors); return frame->n_vectors; } +/* *INDENT-OFF* */ VLIB_REGISTER_NODE (ip6_icmp_echo_request_node,static) = { .function = ip6_icmp_echo_request, .name = "ip6-icmp-echo-request", @@ -481,154 +496,163 @@ VLIB_REGISTER_NODE (ip6_icmp_echo_request_node,static) = { [ICMP6_ECHO_REQUEST_NEXT_OUTPUT] = "interface-output", }, }; +/* *INDENT-ON* */ -typedef enum { +typedef enum +{ IP6_ICMP_ERROR_NEXT_DROP, IP6_ICMP_ERROR_NEXT_LOOKUP, IP6_ICMP_ERROR_N_NEXT, } ip6_icmp_error_next_t; void -icmp6_error_set_vnet_buffer (vlib_buffer_t *b, u8 type, u8 code, u32 data) +icmp6_error_set_vnet_buffer (vlib_buffer_t * b, u8 type, u8 code, u32 data) { - vnet_buffer(b)->ip.icmp.type = type; - vnet_buffer(b)->ip.icmp.code = code; - vnet_buffer(b)->ip.icmp.data = data; + vnet_buffer (b)->ip.icmp.type = type; + vnet_buffer (b)->ip.icmp.code = code; + vnet_buffer (b)->ip.icmp.data = data; } static u8 icmp6_icmp_type_to_error (u8 type) { - switch (type) { - case ICMP6_destination_unreachable: - return ICMP6_ERROR_DEST_UNREACH_SENT; - case ICMP6_packet_too_big: - return ICMP6_ERROR_PACKET_TOO_BIG_SENT; - case ICMP6_time_exceeded: - return ICMP6_ERROR_TTL_EXPIRE_SENT; - case ICMP6_parameter_problem: - return ICMP6_ERROR_PARAM_PROBLEM_SENT; - default: - return ICMP6_ERROR_DROP; - } + switch (type) + { + case ICMP6_destination_unreachable: + return ICMP6_ERROR_DEST_UNREACH_SENT; + case ICMP6_packet_too_big: + return ICMP6_ERROR_PACKET_TOO_BIG_SENT; + case ICMP6_time_exceeded: + return ICMP6_ERROR_TTL_EXPIRE_SENT; + case ICMP6_parameter_problem: + return ICMP6_ERROR_PARAM_PROBLEM_SENT; + default: + return ICMP6_ERROR_DROP; + } } static uword ip6_icmp_error (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) + vlib_node_runtime_t * node, vlib_frame_t * frame) { - u32 * from, * to_next; + u32 *from, *to_next; uword n_left_from, n_left_to_next; ip6_icmp_error_next_t next_index; ip6_main_t *im = &ip6_main; - ip_lookup_main_t * lm = &im->lookup_main; + ip_lookup_main_t *lm = &im->lookup_main; - from = vlib_frame_vector_args(frame); + from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; next_index = node->cached_next_index; if (node->flags & VLIB_NODE_FLAG_TRACE) vlib_trace_frame_buffers_only (vm, node, from, frame->n_vectors, - /* stride */ 1, sizeof (icmp6_input_trace_t)); + /* stride */ 1, + sizeof (icmp6_input_trace_t)); while (n_left_from > 0) { - vlib_get_next_frame(vm, node, next_index, to_next, n_left_to_next); + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); while (n_left_from > 0 && n_left_to_next > 0) - { - u32 pi0 = from[0]; - u32 next0 = IP6_ICMP_ERROR_NEXT_LOOKUP; - u8 error0 = ICMP6_ERROR_NONE; - vlib_buffer_t * p0; - ip6_header_t * ip0, * out_ip0; - icmp46_header_t * icmp0; - u32 sw_if_index0, if_add_index0; - int bogus_length; - - /* Speculatively enqueue p0 to the current next frame */ - to_next[0] = pi0; - from += 1; - to_next += 1; - n_left_from -= 1; - n_left_to_next -= 1; - - p0 = vlib_get_buffer(vm, pi0); - ip0 = vlib_buffer_get_current(p0); - sw_if_index0 = vnet_buffer(p0)->sw_if_index[VLIB_RX]; - - /* RFC4443 says to keep as much of the original packet as possible - * within the minimum MTU. We cheat "a little" here by keeping whatever fits - * in the first buffer, to be more efficient */ - if (PREDICT_FALSE(p0->total_length_not_including_first_buffer)) - { /* clear current_length of all other buffers in chain */ - vlib_buffer_t *b = p0; - p0->total_length_not_including_first_buffer = 0; - while (b->flags & VLIB_BUFFER_NEXT_PRESENT) - { - b = vlib_get_buffer (vm, b->next_buffer); - b->current_length = 0; - } - } - p0->current_length = p0->current_length > 1280 ? 1280 : p0->current_length; - - /* Add IP header and ICMPv6 header including a 4 byte data field */ - vlib_buffer_advance(p0, - -sizeof(ip6_header_t)-sizeof(icmp46_header_t)-4); - out_ip0 = vlib_buffer_get_current(p0); - icmp0 = (icmp46_header_t *) &out_ip0[1]; - - /* Fill ip header fields */ - out_ip0->ip_version_traffic_class_and_flow_label = - clib_host_to_net_u32(0x6<<28); - - out_ip0->payload_length = clib_host_to_net_u16(p0->current_length - sizeof(ip6_header_t)); - out_ip0->protocol = IP_PROTOCOL_ICMP6; - out_ip0->hop_limit = 0xff; - out_ip0->dst_address = ip0->src_address; - if_add_index0 = - lm->if_address_pool_index_by_sw_if_index[sw_if_index0]; - if (PREDICT_TRUE(if_add_index0 != ~0)) - { - ip_interface_address_t *if_add = - pool_elt_at_index(lm->if_address_pool, if_add_index0); - ip6_address_t *if_ip = - ip_interface_address_get_address(lm, if_add); - out_ip0->src_address = *if_ip; - } - else /* interface has no IP6 address - should not happen */ - { - next0 = IP6_ICMP_ERROR_NEXT_DROP; - error0 = ICMP6_ERROR_DROP; - } - - /* Fill icmp header fields */ - icmp0->type = vnet_buffer(p0)->ip.icmp.type; - icmp0->code = vnet_buffer(p0)->ip.icmp.code; - *((u32 *)(icmp0 + 1)) = clib_host_to_net_u32(vnet_buffer(p0)->ip.icmp.data); - icmp0->checksum = 0; - icmp0->checksum = ip6_tcp_udp_icmp_compute_checksum( - vm, p0, out_ip0, &bogus_length); - - - - /* Update error status */ + { + u32 pi0 = from[0]; + u32 next0 = IP6_ICMP_ERROR_NEXT_LOOKUP; + u8 error0 = ICMP6_ERROR_NONE; + vlib_buffer_t *p0; + ip6_header_t *ip0, *out_ip0; + icmp46_header_t *icmp0; + u32 sw_if_index0, if_add_index0; + int bogus_length; + + /* Speculatively enqueue p0 to the current next frame */ + to_next[0] = pi0; + from += 1; + to_next += 1; + n_left_from -= 1; + n_left_to_next -= 1; + + p0 = vlib_get_buffer (vm, pi0); + ip0 = vlib_buffer_get_current (p0); + sw_if_index0 = vnet_buffer (p0)->sw_if_index[VLIB_RX]; + + /* RFC4443 says to keep as much of the original packet as possible + * within the minimum MTU. We cheat "a little" here by keeping whatever fits + * in the first buffer, to be more efficient */ + if (PREDICT_FALSE (p0->total_length_not_including_first_buffer)) + { /* clear current_length of all other buffers in chain */ + vlib_buffer_t *b = p0; + p0->total_length_not_including_first_buffer = 0; + while (b->flags & VLIB_BUFFER_NEXT_PRESENT) + { + b = vlib_get_buffer (vm, b->next_buffer); + b->current_length = 0; + } + } + p0->current_length = + p0->current_length > 1280 ? 1280 : p0->current_length; + + /* Add IP header and ICMPv6 header including a 4 byte data field */ + vlib_buffer_advance (p0, + -sizeof (ip6_header_t) - + sizeof (icmp46_header_t) - 4); + out_ip0 = vlib_buffer_get_current (p0); + icmp0 = (icmp46_header_t *) & out_ip0[1]; + + /* Fill ip header fields */ + out_ip0->ip_version_traffic_class_and_flow_label = + clib_host_to_net_u32 (0x6 << 28); + + out_ip0->payload_length = + clib_host_to_net_u16 (p0->current_length - sizeof (ip6_header_t)); + out_ip0->protocol = IP_PROTOCOL_ICMP6; + out_ip0->hop_limit = 0xff; + out_ip0->dst_address = ip0->src_address; + if_add_index0 = + lm->if_address_pool_index_by_sw_if_index[sw_if_index0]; + if (PREDICT_TRUE (if_add_index0 != ~0)) + { + ip_interface_address_t *if_add = + pool_elt_at_index (lm->if_address_pool, if_add_index0); + ip6_address_t *if_ip = + ip_interface_address_get_address (lm, if_add); + out_ip0->src_address = *if_ip; + } + else /* interface has no IP6 address - should not happen */ + { + next0 = IP6_ICMP_ERROR_NEXT_DROP; + error0 = ICMP6_ERROR_DROP; + } + + /* Fill icmp header fields */ + icmp0->type = vnet_buffer (p0)->ip.icmp.type; + icmp0->code = vnet_buffer (p0)->ip.icmp.code; + *((u32 *) (icmp0 + 1)) = + clib_host_to_net_u32 (vnet_buffer (p0)->ip.icmp.data); + icmp0->checksum = 0; + icmp0->checksum = + ip6_tcp_udp_icmp_compute_checksum (vm, p0, out_ip0, + &bogus_length); + + + + /* Update error status */ if (error0 == ICMP6_ERROR_NONE) - error0 = icmp6_icmp_type_to_error(icmp0->type); - vlib_error_count(vm, node->node_index, error0, 1); - - /* Verify speculative enqueue, maybe switch current next frame */ - vlib_validate_buffer_enqueue_x1(vm, node, next_index, - to_next, n_left_to_next, - pi0, next0); - } - vlib_put_next_frame(vm, node, next_index, n_left_to_next); + error0 = icmp6_icmp_type_to_error (icmp0->type); + vlib_error_count (vm, node->node_index, error0, 1); + + /* Verify speculative enqueue, maybe switch current next frame */ + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, + to_next, n_left_to_next, + pi0, next0); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); } return frame->n_vectors; } +/* *INDENT-OFF* */ VLIB_REGISTER_NODE (ip6_icmp_error_node) = { .function = ip6_icmp_error, .name = "ip6-icmp-error", @@ -645,12 +669,14 @@ VLIB_REGISTER_NODE (ip6_icmp_error_node) = { .format_trace = format_icmp6_input_trace, }; +/* *INDENT-ON* */ -static uword unformat_icmp_type_and_code (unformat_input_t * input, va_list * args) +static uword +unformat_icmp_type_and_code (unformat_input_t * input, va_list * args) { - icmp46_header_t * h = va_arg (*args, icmp46_header_t *); - icmp6_main_t * cm = &icmp6_main; + icmp46_header_t *h = va_arg (*args, icmp46_header_t *); + icmp6_main_t *cm = &icmp6_main; u32 i; if (unformat_user (input, unformat_vlib_number_by_name, @@ -674,22 +700,20 @@ static uword unformat_icmp_type_and_code (unformat_input_t * input, va_list * ar static void icmp6_pg_edit_function (pg_main_t * pg, pg_stream_t * s, - pg_edit_group_t * g, - u32 * packets, - u32 n_packets) + pg_edit_group_t * g, u32 * packets, u32 n_packets) { - vlib_main_t * vm = vlib_get_main(); + vlib_main_t *vm = vlib_get_main (); u32 ip_offset, icmp_offset; int bogus_length; icmp_offset = g->start_byte_offset; - ip_offset = (g-1)->start_byte_offset; + ip_offset = (g - 1)->start_byte_offset; while (n_packets >= 1) { - vlib_buffer_t * p0; - ip6_header_t * ip0; - icmp46_header_t * icmp0; + vlib_buffer_t *p0; + ip6_header_t *ip0; + icmp46_header_t *icmp0; p0 = vlib_get_buffer (vm, packets[0]); n_packets -= 1; @@ -699,13 +723,14 @@ icmp6_pg_edit_function (pg_main_t * pg, ip0 = (void *) (p0->data + ip_offset); icmp0 = (void *) (p0->data + icmp_offset); - icmp0->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, p0, ip0, - &bogus_length); + icmp0->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, p0, ip0, + &bogus_length); ASSERT (bogus_length == 0); } } -typedef struct { +typedef struct +{ pg_edit_t type, code; pg_edit_t checksum; } pg_icmp46_header_t; @@ -715,19 +740,19 @@ pg_icmp_header_init (pg_icmp46_header_t * p) { /* Initialize fields that are not bit fields in the IP header. */ #define _(f) pg_edit_init (&p->f, icmp46_header_t, f); - _ (type); - _ (code); - _ (checksum); + _(type); + _(code); + _(checksum); #undef _ } static uword unformat_pg_icmp_header (unformat_input_t * input, va_list * args) { - pg_stream_t * s = va_arg (*args, pg_stream_t *); - pg_icmp46_header_t * p; + pg_stream_t *s = va_arg (*args, pg_stream_t *); + pg_icmp46_header_t *p; u32 group_index; - + p = pg_create_edit_group (s, sizeof (p[0]), sizeof (icmp46_header_t), &group_index); pg_icmp_header_init (p); @@ -737,7 +762,7 @@ unformat_pg_icmp_header (unformat_input_t * input, va_list * args) { icmp46_header_t tmp; - if (! unformat (input, "ICMP %U", unformat_icmp_type_and_code, &tmp)) + if (!unformat (input, "ICMP %U", unformat_icmp_type_and_code, &tmp)) goto error; pg_edit_set_fixed (&p->type, tmp.type); @@ -748,8 +773,7 @@ unformat_pg_icmp_header (unformat_input_t * input, va_list * args) while (1) { if (unformat (input, "checksum %U", - unformat_pg_edit, - unformat_pg_number, &p->checksum)) + unformat_pg_edit, unformat_pg_number, &p->checksum)) ; /* Can't parse input: try next protocol level. */ @@ -757,27 +781,28 @@ unformat_pg_icmp_header (unformat_input_t * input, va_list * args) break; } - if (! unformat_user (input, unformat_pg_payload, s)) + if (!unformat_user (input, unformat_pg_payload, s)) goto error; if (p->checksum.type == PG_EDIT_UNSPECIFIED) { - pg_edit_group_t * g = pg_stream_get_group (s, group_index); + pg_edit_group_t *g = pg_stream_get_group (s, group_index); g->edit_function = icmp6_pg_edit_function; g->edit_function_opaque = 0; } return 1; - error: +error: /* Free up any edits we may have added. */ pg_free_edit_group (s); return 0; } -void icmp6_register_type (vlib_main_t * vm, icmp6_type_t type, u32 node_index) +void +icmp6_register_type (vlib_main_t * vm, icmp6_type_t type, u32 node_index) { - icmp6_main_t * im = &icmp6_main; + icmp6_main_t *im = &icmp6_main; ASSERT ((int) type < ARRAY_LEN (im->input_next_index_by_type)); im->input_next_index_by_type[type] @@ -787,10 +812,10 @@ void icmp6_register_type (vlib_main_t * vm, icmp6_type_t type, u32 node_index) static clib_error_t * icmp6_init (vlib_main_t * vm) { - ip_main_t * im = &ip_main; - ip_protocol_info_t * pi; - icmp6_main_t * cm = &icmp6_main; - clib_error_t * error; + ip_main_t *im = &ip_main; + ip_protocol_info_t *pi; + icmp6_main_t *cm = &icmp6_main; + clib_error_t *error; error = vlib_call_init_function (vm, ip_main_init); @@ -812,33 +837,46 @@ icmp6_init (vlib_main_t * vm) #undef _ memset (cm->input_next_index_by_type, - ICMP_INPUT_NEXT_DROP, - sizeof (cm->input_next_index_by_type)); + ICMP_INPUT_NEXT_DROP, sizeof (cm->input_next_index_by_type)); memset (cm->max_valid_code_by_type, 0, sizeof (cm->max_valid_code_by_type)); #define _(a,n,t) cm->max_valid_code_by_type[ICMP6_##a] = clib_max (cm->max_valid_code_by_type[ICMP6_##a], n); foreach_icmp6_code; #undef _ - memset (cm->min_valid_hop_limit_by_type, 0, sizeof (cm->min_valid_hop_limit_by_type)); + memset (cm->min_valid_hop_limit_by_type, 0, + sizeof (cm->min_valid_hop_limit_by_type)); cm->min_valid_hop_limit_by_type[ICMP6_router_solicitation] = 255; cm->min_valid_hop_limit_by_type[ICMP6_router_advertisement] = 255; cm->min_valid_hop_limit_by_type[ICMP6_neighbor_solicitation] = 255; cm->min_valid_hop_limit_by_type[ICMP6_neighbor_advertisement] = 255; cm->min_valid_hop_limit_by_type[ICMP6_redirect] = 255; - memset (cm->min_valid_length_by_type, sizeof (icmp46_header_t), sizeof (cm->min_valid_length_by_type)); - cm->min_valid_length_by_type[ICMP6_router_solicitation] = sizeof (icmp6_neighbor_discovery_header_t); - cm->min_valid_length_by_type[ICMP6_router_advertisement] = sizeof (icmp6_router_advertisement_header_t); - cm->min_valid_length_by_type[ICMP6_neighbor_solicitation] - = sizeof (icmp6_neighbor_solicitation_or_advertisement_header_t); - cm->min_valid_length_by_type[ICMP6_neighbor_advertisement] - = sizeof (icmp6_neighbor_solicitation_or_advertisement_header_t); - cm->min_valid_length_by_type[ICMP6_redirect] = sizeof (icmp6_redirect_header_t); - - icmp6_register_type (vm, ICMP6_echo_request, ip6_icmp_echo_request_node.index); + memset (cm->min_valid_length_by_type, sizeof (icmp46_header_t), + sizeof (cm->min_valid_length_by_type)); + cm->min_valid_length_by_type[ICMP6_router_solicitation] = + sizeof (icmp6_neighbor_discovery_header_t); + cm->min_valid_length_by_type[ICMP6_router_advertisement] = + sizeof (icmp6_router_advertisement_header_t); + cm->min_valid_length_by_type[ICMP6_neighbor_solicitation] = + sizeof (icmp6_neighbor_solicitation_or_advertisement_header_t); + cm->min_valid_length_by_type[ICMP6_neighbor_advertisement] = + sizeof (icmp6_neighbor_solicitation_or_advertisement_header_t); + cm->min_valid_length_by_type[ICMP6_redirect] = + sizeof (icmp6_redirect_header_t); + + icmp6_register_type (vm, ICMP6_echo_request, + ip6_icmp_echo_request_node.index); return vlib_call_init_function (vm, ip6_neighbor_init); } VLIB_INIT_FUNCTION (icmp6_init); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/icmp6.h b/vnet/vnet/ip/icmp6.h index d44d0c3dbc9..a426512ea2f 100644 --- a/vnet/vnet/ip/icmp6.h +++ b/vnet/vnet/ip/icmp6.h @@ -53,22 +53,34 @@ _ (DROP, "error message dropped") -typedef enum { +typedef enum +{ #define _(f,s) ICMP6_ERROR_##f, foreach_icmp6_error #undef _ } icmp6_error_t; -typedef struct { +typedef struct +{ u8 packet_data[64]; } icmp6_input_trace_t; format_function_t format_icmp6_input_trace; -void icmp6_register_type (vlib_main_t * vm, icmp6_type_t type, u32 node_index); -void icmp6_error_set_vnet_buffer (vlib_buffer_t *b, u8 type, u8 code, u32 data); +void icmp6_register_type (vlib_main_t * vm, icmp6_type_t type, + u32 node_index); +void icmp6_error_set_vnet_buffer (vlib_buffer_t * b, u8 type, u8 code, + u32 data); extern vlib_node_registration_t ip6_icmp_input_node; #endif /* included_vnet_icmp6_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/igmp_packet.h b/vnet/vnet/ip/igmp_packet.h index 00b1e0deeb7..503259ece7c 100644 --- a/vnet/vnet/ip/igmp_packet.h +++ b/vnet/vnet/ip/igmp_packet.h @@ -58,21 +58,24 @@ _ (0x31, router_solicitation) \ _ (0x32, router_termination) -typedef enum { +typedef enum +{ #define _(n,f) IGMP_TYPE_##f = n, foreach_igmp_type #undef _ } igmp_type_t; -typedef struct { - igmp_type_t type : 8; +typedef struct +{ + igmp_type_t type:8; u8 code; u16 checksum; } igmp_header_t; -typedef struct { +typedef struct +{ /* membership_query, version <= 2 reports. */ igmp_header_t header; @@ -88,14 +91,16 @@ typedef struct { _ (5, allow_new_sources) \ _ (6, block_old_sources) -typedef enum { +typedef enum +{ #define _(n,f) IGMP_MEMBERSHIP_GROUP_##f = n, foreach_igmp_membership_group_v3_type #undef _ } igmp_membership_group_v3_type_t; -typedef struct { - igmp_membership_group_v3_type_t type : 8; +typedef struct +{ + igmp_membership_group_v3_type_t type:8; /* Number of 32 bit words of aux data after source addresses. */ u8 n_aux_u32s; @@ -117,7 +122,8 @@ igmp_membership_group_v3_next (igmp_membership_group_v3_t * g) + g->n_aux_u32s * sizeof (u32)); } -typedef struct { +typedef struct +{ /* Type 0x22. */ igmp_header_t header; @@ -130,7 +136,8 @@ typedef struct { } igmp_membership_report_v3_t; /* IP6 flavor of IGMP is called MLD which is embedded in ICMP6. */ -typedef struct { +typedef struct +{ /* Preceeded by ICMP v6 header. */ u16 max_response_delay_in_milliseconds; u16 reserved; @@ -138,3 +145,11 @@ typedef struct { } mld_header_t; #endif /* included_vnet_igmp_packet_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip.h b/vnet/vnet/ip/ip.h index f50662b2acf..02a1a9636ee 100644 --- a/vnet/vnet/ip/ip.h +++ b/vnet/vnet/ip/ip.h @@ -41,7 +41,7 @@ #define included_ip_main_h #include <vppinfra/hash.h> -#include <vppinfra/heap.h> /* adjacency heap */ +#include <vppinfra/heap.h> /* adjacency heap */ #include <vppinfra/ptclosure.h> #include <vnet/vnet.h> @@ -66,71 +66,73 @@ #include <vnet/classify/vnet_classify.h> /* Per protocol info. */ -typedef struct { +typedef struct +{ /* Protocol name (also used as hash key). */ - u8 * name; + u8 *name; /* Protocol number. */ ip_protocol_t protocol; /* Format function for this IP protocol. */ - format_function_t * format_header; + format_function_t *format_header; /* Parser for header. */ - unformat_function_t * unformat_header; + unformat_function_t *unformat_header; /* Parser for per-protocol matches. */ - unformat_function_t * unformat_match; + unformat_function_t *unformat_match; /* Parser for packet generator edits for this protocol. */ - unformat_function_t * unformat_pg_edit; + unformat_function_t *unformat_pg_edit; } ip_protocol_info_t; /* Per TCP/UDP port info. */ -typedef struct { +typedef struct +{ /* Port name (used as hash key). */ - u8 * name; + u8 *name; /* UDP/TCP port number in network byte order. */ u16 port; /* Port specific format function. */ - format_function_t * format_header; + format_function_t *format_header; /* Parser for packet generator edits for this protocol. */ - unformat_function_t * unformat_pg_edit; + unformat_function_t *unformat_pg_edit; } tcp_udp_port_info_t; -typedef struct { +typedef struct +{ /* Per IP protocol info. */ - ip_protocol_info_t * protocol_infos; + ip_protocol_info_t *protocol_infos; /* Protocol info index hashed by 8 bit IP protocol. */ - uword * protocol_info_by_protocol; + uword *protocol_info_by_protocol; /* Hash table mapping IP protocol name (see protocols.def) to protocol number. */ - uword * protocol_info_by_name; + uword *protocol_info_by_name; /* Per TCP/UDP port info. */ - tcp_udp_port_info_t * port_infos; + tcp_udp_port_info_t *port_infos; /* Hash table from network-byte-order port to port info index. */ - uword * port_info_by_port; + uword *port_info_by_port; /* Hash table mapping TCP/UDP name to port info index. */ - uword * port_info_by_name; + uword *port_info_by_name; } ip_main_t; extern ip_main_t ip_main; -clib_error_t * -ip_main_init (vlib_main_t * vm); +clib_error_t *ip_main_init (vlib_main_t * vm); static inline ip_protocol_info_t * ip_get_protocol_info (ip_main_t * im, u32 protocol) { - uword * p; + uword *p; p = hash_get (im->protocol_info_by_protocol, protocol); return p ? vec_elt_at_index (im->protocol_infos, p[0]) : 0; @@ -139,22 +141,22 @@ ip_get_protocol_info (ip_main_t * im, u32 protocol) static inline tcp_udp_port_info_t * ip_get_tcp_udp_port_info (ip_main_t * im, u32 port) { - uword * p; + uword *p; p = hash_get (im->port_info_by_port, port); return p ? vec_elt_at_index (im->port_infos, p[0]) : 0; } - + always_inline ip_csum_t -ip_incremental_checksum_buffer (vlib_main_t * vm, vlib_buffer_t * first_buffer, +ip_incremental_checksum_buffer (vlib_main_t * vm, + vlib_buffer_t * first_buffer, u32 first_buffer_offset, - u32 n_bytes_to_checksum, - ip_csum_t sum) + u32 n_bytes_to_checksum, ip_csum_t sum) { - vlib_buffer_t * b = first_buffer; + vlib_buffer_t *b = first_buffer; u32 n_bytes_left = n_bytes_to_checksum; ASSERT (b->current_length >= first_buffer_offset); - void * h; + void *h; u32 n; n = clib_min (n_bytes_left, b->current_length); @@ -177,9 +179,17 @@ ip_incremental_checksum_buffer (vlib_main_t * vm, vlib_buffer_t * first_buffer, return sum; } -void ip_del_all_interface_addresses (vlib_main_t *vm, u32 sw_if_index); +void ip_del_all_interface_addresses (vlib_main_t * vm, u32 sw_if_index); extern vlib_node_registration_t ip4_inacl_node; extern vlib_node_registration_t ip6_inacl_node; #endif /* included_ip_main_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip4.h b/vnet/vnet/ip/ip4.h index f69f25f5d5d..0331c44563e 100644 --- a/vnet/vnet/ip/ip4.h +++ b/vnet/vnet/ip/ip4.h @@ -45,9 +45,10 @@ #include <vnet/ip/lookup.h> #include <vnet/feature/feature.h> -typedef struct ip4_fib_t { +typedef struct ip4_fib_t +{ /* Hash table for each prefix length mapping. */ - uword * fib_entry_by_dst_address[33]; + uword *fib_entry_by_dst_address[33]; /* Mtrie for fast lookups. Hash is used to maintain overlapping prefixes. */ ip4_fib_mtrie_t mtrie; @@ -74,12 +75,11 @@ typedef void (ip4_add_del_interface_address_function_t) uword opaque, u32 sw_if_index, ip4_address_t * address, - u32 address_length, - u32 if_address_index, - u32 is_del); + u32 address_length, u32 if_address_index, u32 is_del); -typedef struct { - ip4_add_del_interface_address_function_t * function; +typedef struct +{ + ip4_add_del_interface_address_function_t *function; uword function_opaque; } ip4_add_del_interface_address_callback_t; @@ -92,26 +92,28 @@ typedef struct { * - Feature node run time references */ -typedef struct ip4_main_t { +typedef struct ip4_main_t +{ ip_lookup_main_t lookup_main; /** Vector of FIBs. */ - struct fib_table_t_ * fibs; + struct fib_table_t_ *fibs; u32 fib_masks[33]; /** Table index indexed by software interface. */ - u32 * fib_index_by_sw_if_index; + u32 *fib_index_by_sw_if_index; /* IP4 enabled count by software interface */ - u8 * ip_enabled_by_sw_if_index; + u8 *ip_enabled_by_sw_if_index; /** Hash table mapping table id to fib index. ID space is not necessarily dense; index space is dense. */ - uword * fib_index_by_table_id; + uword *fib_index_by_table_id; /** Functions to call when interface address changes. */ - ip4_add_del_interface_address_callback_t * add_del_interface_address_callbacks; + ip4_add_del_interface_address_callback_t + * add_del_interface_address_callbacks; /** Template used to generate IP4 ARP packets. */ vlib_packet_template_t ip4_arp_request_packet_template; @@ -120,7 +122,8 @@ typedef struct ip4_main_t { u32 flow_hash_seed; /** @brief Template information for VPP generated packets */ - struct { + struct + { /** TTL to use for host generated packets. */ u8 ttl; @@ -146,16 +149,17 @@ extern vlib_node_registration_t ip4_midchain_node; always_inline uword ip4_destination_matches_route (const ip4_main_t * im, const ip4_address_t * key, - const ip4_address_t * dest, - uword dest_length) -{ return 0 == ((key->data_u32 ^ dest->data_u32) & im->fib_masks[dest_length]); } + const ip4_address_t * dest, uword dest_length) +{ + return 0 == ((key->data_u32 ^ dest->data_u32) & im->fib_masks[dest_length]); +} always_inline uword ip4_destination_matches_interface (ip4_main_t * im, ip4_address_t * key, ip_interface_address_t * ia) { - ip4_address_t * a = ip_interface_address_get_address (&im->lookup_main, ia); + ip4_address_t *a = ip_interface_address_get_address (&im->lookup_main, ia); return ip4_destination_matches_route (im, key, a, ia->address_length); } @@ -165,40 +169,46 @@ ip4_unaligned_destination_matches_route (ip4_main_t * im, ip4_address_t * key, ip4_address_t * dest, uword dest_length) -{ return 0 == ((clib_mem_unaligned (&key->data_u32, u32) ^ dest->data_u32) & im->fib_masks[dest_length]); } +{ + return 0 == + ((clib_mem_unaligned (&key->data_u32, u32) ^ dest-> + data_u32) & im->fib_masks[dest_length]); +} always_inline int ip4_src_address_for_packet (ip_lookup_main_t * lm, - u32 sw_if_index, - ip4_address_t * src) + u32 sw_if_index, ip4_address_t * src) { - u32 if_add_index = - lm->if_address_pool_index_by_sw_if_index[sw_if_index]; - if (PREDICT_TRUE(if_add_index != ~0)) { - ip_interface_address_t *if_add = - pool_elt_at_index(lm->if_address_pool, if_add_index); - ip4_address_t *if_ip = - ip_interface_address_get_address(lm, if_add); - *src = *if_ip; - return 0; + u32 if_add_index = lm->if_address_pool_index_by_sw_if_index[sw_if_index]; + if (PREDICT_TRUE (if_add_index != ~0)) + { + ip_interface_address_t *if_add = + pool_elt_at_index (lm->if_address_pool, if_add_index); + ip4_address_t *if_ip = ip_interface_address_get_address (lm, if_add); + *src = *if_ip; + return 0; } - else + else { - ASSERT(0); - src->as_u32 = 0; + ASSERT (0); + src->as_u32 = 0; } - return (!0); + return (!0); } /* Find interface address which matches destination. */ always_inline ip4_address_t * -ip4_interface_address_matching_destination (ip4_main_t * im, ip4_address_t * dst, u32 sw_if_index, - ip_interface_address_t ** result_ia) +ip4_interface_address_matching_destination (ip4_main_t * im, + ip4_address_t * dst, + u32 sw_if_index, + ip_interface_address_t ** + result_ia) { - ip_lookup_main_t * lm = &im->lookup_main; - ip_interface_address_t * ia; - ip4_address_t * result = 0; + ip_lookup_main_t *lm = &im->lookup_main; + ip_interface_address_t *ia; + ip4_address_t *result = 0; + /* *INDENT-OFF* */ foreach_ip_interface_address (lm, ia, sw_if_index, 1 /* honor unnumbered */, ({ @@ -209,54 +219,52 @@ ip4_interface_address_matching_destination (ip4_main_t * im, ip4_address_t * dst break; } })); + /* *INDENT-ON* */ if (result_ia) *result_ia = result ? ia : 0; return result; } -ip4_address_t * -ip4_interface_first_address (ip4_main_t * im, u32 sw_if_index, - ip_interface_address_t ** result_ia); +ip4_address_t *ip4_interface_first_address (ip4_main_t * im, u32 sw_if_index, + ip_interface_address_t ** + result_ia); -clib_error_t * -ip4_add_del_interface_address (vlib_main_t * vm, u32 sw_if_index, - ip4_address_t * address, u32 address_length, - u32 is_del); +clib_error_t *ip4_add_del_interface_address (vlib_main_t * vm, + u32 sw_if_index, + ip4_address_t * address, + u32 address_length, u32 is_del); -void -ip4_sw_interface_enable_disable (u32 sw_if_index, - u32 is_enable); +void ip4_sw_interface_enable_disable (u32 sw_if_index, u32 is_enable); int ip4_address_compare (ip4_address_t * a1, ip4_address_t * a2); /* Send an ARP request to see if given destination is reachable on given interface. */ -clib_error_t * -ip4_probe_neighbor (vlib_main_t * vm, ip4_address_t * dst, u32 sw_if_index); +clib_error_t *ip4_probe_neighbor (vlib_main_t * vm, ip4_address_t * dst, + u32 sw_if_index); -clib_error_t * -ip4_set_arp_limit (u32 arp_limit); +clib_error_t *ip4_set_arp_limit (u32 arp_limit); uword ip4_udp_register_listener (vlib_main_t * vm, - u16 dst_port, - u32 next_node_index); + u16 dst_port, u32 next_node_index); void -ip4_icmp_register_type (vlib_main_t * vm, icmp4_type_t type, - u32 node_index); +ip4_icmp_register_type (vlib_main_t * vm, icmp4_type_t type, u32 node_index); -u16 ip4_tcp_udp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0, ip4_header_t * ip0); +u16 ip4_tcp_udp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0, + ip4_header_t * ip0); void ip4_register_protocol (u32 protocol, u32 node_index); serialize_function_t serialize_vnet_ip4_main, unserialize_vnet_ip4_main; -int vnet_set_ip4_flow_hash (u32 table_id, flow_hash_config_t flow_hash_config); +int vnet_set_ip4_flow_hash (u32 table_id, + flow_hash_config_t flow_hash_config); void ip4_mtrie_init (ip4_fib_mtrie_t * m); int vnet_set_ip4_classify_intfc (vlib_main_t * vm, u32 sw_if_index, - u32 table_index); + u32 table_index); /* Compute flow hash. We'll use it to select which adjacency to use for this flow. And other things. */ @@ -264,43 +272,51 @@ always_inline u32 ip4_compute_flow_hash (const ip4_header_t * ip, flow_hash_config_t flow_hash_config) { - tcp_header_t * tcp = (void *) (ip + 1); - u32 a, b, c, t1, t2; - uword is_tcp_udp = (ip->protocol == IP_PROTOCOL_TCP - || ip->protocol == IP_PROTOCOL_UDP); + tcp_header_t *tcp = (void *) (ip + 1); + u32 a, b, c, t1, t2; + uword is_tcp_udp = (ip->protocol == IP_PROTOCOL_TCP + || ip->protocol == IP_PROTOCOL_UDP); - t1 = (flow_hash_config & IP_FLOW_HASH_SRC_ADDR) - ? ip->src_address.data_u32 : 0; - t2 = (flow_hash_config & IP_FLOW_HASH_DST_ADDR) - ? ip->dst_address.data_u32 : 0; + t1 = (flow_hash_config & IP_FLOW_HASH_SRC_ADDR) + ? ip->src_address.data_u32 : 0; + t2 = (flow_hash_config & IP_FLOW_HASH_DST_ADDR) + ? ip->dst_address.data_u32 : 0; - a = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? t2 : t1; - b = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? t1 : t2; - b ^= (flow_hash_config & IP_FLOW_HASH_PROTO) ? ip->protocol : 0; + a = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? t2 : t1; + b = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? t1 : t2; + b ^= (flow_hash_config & IP_FLOW_HASH_PROTO) ? ip->protocol : 0; - t1 = is_tcp_udp ? tcp->ports.src : 0; - t2 = is_tcp_udp ? tcp->ports.dst : 0; + t1 = is_tcp_udp ? tcp->ports.src : 0; + t2 = is_tcp_udp ? tcp->ports.dst : 0; - t1 = (flow_hash_config & IP_FLOW_HASH_SRC_PORT) ? t1 : 0; - t2 = (flow_hash_config & IP_FLOW_HASH_DST_PORT) ? t2 : 0; + t1 = (flow_hash_config & IP_FLOW_HASH_SRC_PORT) ? t1 : 0; + t2 = (flow_hash_config & IP_FLOW_HASH_DST_PORT) ? t2 : 0; - c = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? - (t1<<16) | t2 : (t2<<16) | t1; + c = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? + (t1 << 16) | t2 : (t2 << 16) | t1; - hash_v3_mix32 (a, b, c); - hash_v3_finalize32 (a, b, c); + hash_v3_mix32 (a, b, c); + hash_v3_finalize32 (a, b, c); - return c; + return c; } void ip4_forward_next_trace (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame, - vlib_rx_or_tx_t which_adj_index); + vlib_node_runtime_t * node, + vlib_frame_t * frame, + vlib_rx_or_tx_t which_adj_index); -u8 * format_ip4_forward_next_trace (u8 * s, va_list * args); +u8 *format_ip4_forward_next_trace (u8 * s, va_list * args); u32 ip4_tcp_udp_validate_checksum (vlib_main_t * vm, vlib_buffer_t * p0); #endif /* included_ip_ip4_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip46_cli.c b/vnet/vnet/ip/ip46_cli.c index 01b18929b0f..ce1ffa6242b 100644 --- a/vnet/vnet/ip/ip46_cli.c +++ b/vnet/vnet/ip/ip46_cli.c @@ -47,15 +47,22 @@ */ -int ip4_address_compare (ip4_address_t * a1, ip4_address_t * a2) -{ return clib_net_to_host_u32 (a1->data_u32) - clib_net_to_host_u32 (a2->data_u32); } +int +ip4_address_compare (ip4_address_t * a1, ip4_address_t * a2) +{ + return clib_net_to_host_u32 (a1->data_u32) - + clib_net_to_host_u32 (a2->data_u32); +} -int ip6_address_compare (ip6_address_t * a1, ip6_address_t * a2) +int +ip6_address_compare (ip6_address_t * a1, ip6_address_t * a2) { int i; for (i = 0; i < ARRAY_LEN (a1->as_u16); i++) { - int cmp = clib_net_to_host_u16 (a1->as_u16[i]) - clib_net_to_host_u16 (a2->as_u16[i]); + int cmp = + clib_net_to_host_u16 (a1->as_u16[i]) - + clib_net_to_host_u16 (a2->as_u16[i]); if (cmp != 0) return cmp; } @@ -69,18 +76,20 @@ VLIB_CLI_COMMAND (set_interface_ip_command, static) = { }; /* *INDENT-ON* */ -void ip_del_all_interface_addresses (vlib_main_t *vm, u32 sw_if_index) +void +ip_del_all_interface_addresses (vlib_main_t * vm, u32 sw_if_index) { - ip4_main_t * im4 = &ip4_main; - ip4_address_t * ip4_addrs = 0; + ip4_main_t *im4 = &ip4_main; + ip4_address_t *ip4_addrs = 0; u32 *ip4_masks = 0; - ip6_main_t * im6 = &ip6_main; - ip6_address_t * ip6_addrs = 0; + ip6_main_t *im6 = &ip6_main; + ip6_address_t *ip6_addrs = 0; u32 *ip6_masks = 0; - ip_interface_address_t * ia; + ip_interface_address_t *ia; int i; - foreach_ip_interface_address (&im4->lookup_main, ia, sw_if_index, + /* *INDENT-OFF* */ + foreach_ip_interface_address (&im4->lookup_main, ia, sw_if_index, 0 /* honor unnumbered */, ({ ip4_address_t * x = (ip4_address_t *) @@ -88,8 +97,10 @@ void ip_del_all_interface_addresses (vlib_main_t *vm, u32 sw_if_index) vec_add1 (ip4_addrs, x[0]); vec_add1 (ip4_masks, ia->address_length); })); + /* *INDENT-ON* */ - foreach_ip_interface_address (&im6->lookup_main, ia, sw_if_index, + /* *INDENT-OFF* */ + foreach_ip_interface_address (&im6->lookup_main, ia, sw_if_index, 0 /* honor unnumbered */, ({ ip6_address_t * x = (ip6_address_t *) @@ -97,13 +108,14 @@ void ip_del_all_interface_addresses (vlib_main_t *vm, u32 sw_if_index) vec_add1 (ip6_addrs, x[0]); vec_add1 (ip6_masks, ia->address_length); })); + /* *INDENT-ON* */ for (i = 0; i < vec_len (ip4_addrs); i++) - ip4_add_del_interface_address (vm, sw_if_index, &ip4_addrs[i], - ip4_masks[i], 1 /* is_del */); + ip4_add_del_interface_address (vm, sw_if_index, &ip4_addrs[i], + ip4_masks[i], 1 /* is_del */ ); for (i = 0; i < vec_len (ip6_addrs); i++) - ip6_add_del_interface_address (vm, sw_if_index, &ip6_addrs[i], - ip6_masks[i], 1 /* is_del */); + ip6_add_del_interface_address (vm, sw_if_index, &ip6_addrs[i], + ip6_masks[i], 1 /* is_del */ ); vec_free (ip4_addrs); vec_free (ip4_masks); @@ -114,12 +126,12 @@ void ip_del_all_interface_addresses (vlib_main_t *vm, u32 sw_if_index) static clib_error_t * ip_address_delete_cleanup (vnet_main_t * vnm, u32 hw_if_index, u32 is_create) { - vlib_main_t * vm = vlib_get_main(); - vnet_hw_interface_t * hw; + vlib_main_t *vm = vlib_get_main (); + vnet_hw_interface_t *hw; if (is_create) return 0; - + hw = vnet_get_hw_interface (vnm, hw_if_index); ip_del_all_interface_addresses (vm, hw->sw_if_index); @@ -130,13 +142,12 @@ VNET_HW_INTERFACE_ADD_DEL_FUNCTION (ip_address_delete_cleanup); static clib_error_t * add_del_ip_address (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, vlib_cli_command_t * cmd) { - vnet_main_t * vnm = vnet_get_main(); + vnet_main_t *vnm = vnet_get_main (); ip4_address_t a4; ip6_address_t a6; - clib_error_t * error = 0; + clib_error_t *error = 0; u32 sw_if_index, length, is_del; sw_if_index = ~0; @@ -145,7 +156,7 @@ add_del_ip_address (vlib_main_t * vm, if (unformat (input, "del")) is_del = 1; - if (! unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index)) + if (!unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index)) { error = clib_error_return (0, "unknown interface `%U'", format_unformat_error, input); @@ -168,7 +179,7 @@ add_del_ip_address (vlib_main_t * vm, } - done: +done: return error; } @@ -208,7 +219,18 @@ VLIB_CLI_COMMAND (set_interface_ip_address_command, static) = { /* *INDENT-ON* */ /* Dummy init function to get us linked in. */ -static clib_error_t * ip4_cli_init (vlib_main_t * vm) -{ return 0; } +static clib_error_t * +ip4_cli_init (vlib_main_t * vm) +{ + return 0; +} VLIB_INIT_FUNCTION (ip4_cli_init); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip4_error.h b/vnet/vnet/ip/ip4_error.h index 8d7fc53dffc..95d12ec22d5 100644 --- a/vnet/vnet/ip/ip4_error.h +++ b/vnet/vnet/ip/ip4_error.h @@ -76,11 +76,20 @@ _ (INACL_TABLE_MISS, "input ACL table-miss drops") \ _ (INACL_SESSION_DENY, "input ACL session deny drops") -typedef enum { +typedef enum +{ #define _(sym,str) IP4_ERROR_##sym, foreach_ip4_error #undef _ - IP4_N_ERROR, + IP4_N_ERROR, } ip4_error_t; #endif /* included_ip_ip4_error_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip4_format.c b/vnet/vnet/ip/ip4_format.c index 5f4f8e3667d..c803e0656db 100644 --- a/vnet/vnet/ip/ip4_format.c +++ b/vnet/vnet/ip/ip4_format.c @@ -40,27 +40,30 @@ #include <vnet/ip/ip.h> /* Format an IP4 address. */ -u8 * format_ip4_address (u8 * s, va_list * args) +u8 * +format_ip4_address (u8 * s, va_list * args) { - u8 * a = va_arg (*args, u8 *); + u8 *a = va_arg (*args, u8 *); return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]); } /* Format an IP4 route destination and length. */ -u8 * format_ip4_address_and_length (u8 * s, va_list * args) +u8 * +format_ip4_address_and_length (u8 * s, va_list * args) { - u8 * a = va_arg (*args, u8 *); + u8 *a = va_arg (*args, u8 *); u8 l = va_arg (*args, u32); return format (s, "%U/%d", format_ip4_address, a, l); } /* Parse an IP4 address %d.%d.%d.%d. */ -uword unformat_ip4_address (unformat_input_t * input, va_list * args) +uword +unformat_ip4_address (unformat_input_t * input, va_list * args) { - u8 * result = va_arg (*args, u8 *); + u8 *result = va_arg (*args, u8 *); unsigned a[4]; - if (! unformat (input, "%d.%d.%d.%d", &a[0], &a[1], &a[2], &a[3])) + if (!unformat (input, "%d.%d.%d.%d", &a[0], &a[1], &a[2], &a[3])) return 0; if (a[0] >= 256 || a[1] >= 256 || a[2] >= 256 || a[3] >= 256) @@ -75,9 +78,10 @@ uword unformat_ip4_address (unformat_input_t * input, va_list * args) } /* Format an IP4 header. */ -u8 * format_ip4_header (u8 * s, va_list * args) +u8 * +format_ip4_header (u8 * s, va_list * args) { - ip4_header_t * ip = va_arg (*args, ip4_header_t *); + ip4_header_t *ip = va_arg (*args, ip4_header_t *); u32 max_header_bytes = va_arg (*args, u32); u32 ip_version, header_bytes; uword indent; @@ -100,9 +104,8 @@ u8 * format_ip4_header (u8 * s, va_list * args) /* Show IP version and header length only with unexpected values. */ if (ip_version != 4 || header_bytes != sizeof (ip4_header_t)) s = format (s, "\n%Uversion %d, header length %d", - format_white_space, indent, - ip_version, header_bytes); - + format_white_space, indent, ip_version, header_bytes); + s = format (s, "\n%Utos 0x%02x, ttl %d, length %d, checksum 0x%04x", format_white_space, indent, ip->tos, ip->ttl, @@ -134,9 +137,9 @@ u8 * format_ip4_header (u8 * s, va_list * args) { s = format (s, ", flags "); #define _(l) if (f & IP4_HEADER_FLAG_##l) s = format (s, #l); - _ (MORE_FRAGMENTS); - _ (DONT_FRAGMENT); - _ (CONGESTION); + _(MORE_FRAGMENTS); + _(DONT_FRAGMENT); + _(CONGESTION); #undef _ } } @@ -144,14 +147,13 @@ u8 * format_ip4_header (u8 * s, va_list * args) /* Recurse into next protocol layer. */ if (max_header_bytes != 0 && header_bytes < max_header_bytes) { - ip_main_t * im = &ip_main; - ip_protocol_info_t * pi = ip_get_protocol_info (im, ip->protocol); + ip_main_t *im = &ip_main; + ip_protocol_info_t *pi = ip_get_protocol_info (im, ip->protocol); if (pi && pi->format_header) s = format (s, "\n%U%U", - format_white_space, indent - 2, - pi->format_header, - /* next protocol header */ (void*) ip + header_bytes, + format_white_space, indent - 2, pi->format_header, + /* next protocol header */ (void *) ip + header_bytes, max_header_bytes - header_bytes); } @@ -159,15 +161,16 @@ u8 * format_ip4_header (u8 * s, va_list * args) } /* Parse an IP4 header. */ -uword unformat_ip4_header (unformat_input_t * input, va_list * args) +uword +unformat_ip4_header (unformat_input_t * input, va_list * args) { - u8 ** result = va_arg (*args, u8 **); - ip4_header_t * ip; + u8 **result = va_arg (*args, u8 **); + ip4_header_t *ip; int old_length; /* Allocate space for IP header. */ { - void * p; + void *p; old_length = vec_len (*result); vec_add2 (*result, p, sizeof (ip4_header_t)); @@ -177,10 +180,10 @@ uword unformat_ip4_header (unformat_input_t * input, va_list * args) memset (ip, 0, sizeof (ip[0])); ip->ip_version_and_header_length = IP4_VERSION_AND_HEADER_LENGTH_NO_OPTIONS; - if (! unformat (input, "%U: %U -> %U", - unformat_ip_protocol, &ip->protocol, - unformat_ip4_address, &ip->src_address, - unformat_ip4_address, &ip->dst_address)) + if (!unformat (input, "%U: %U -> %U", + unformat_ip_protocol, &ip->protocol, + unformat_ip4_address, &ip->src_address, + unformat_ip4_address, &ip->dst_address)) return 0; /* Parse options. */ @@ -195,8 +198,7 @@ uword unformat_ip4_header (unformat_input_t * input, va_list * args) ip->ttl = i; else if (unformat (input, "fragment id %U offset %U", - unformat_vlib_number, &i, - unformat_vlib_number, &j)) + unformat_vlib_number, &i, unformat_vlib_number, &j)) { ip->fragment_id = clib_host_to_net_u16 (i); ip->flags_and_fragment_offset |= @@ -205,14 +207,17 @@ uword unformat_ip4_header (unformat_input_t * input, va_list * args) /* Flags. */ else if (unformat (input, "mf") || unformat (input, "MF")) - ip->flags_and_fragment_offset |= clib_host_to_net_u16 (IP4_HEADER_FLAG_MORE_FRAGMENTS); + ip->flags_and_fragment_offset |= + clib_host_to_net_u16 (IP4_HEADER_FLAG_MORE_FRAGMENTS); else if (unformat (input, "df") || unformat (input, "DF")) - ip->flags_and_fragment_offset |= clib_host_to_net_u16 (IP4_HEADER_FLAG_DONT_FRAGMENT); + ip->flags_and_fragment_offset |= + clib_host_to_net_u16 (IP4_HEADER_FLAG_DONT_FRAGMENT); else if (unformat (input, "ce") || unformat (input, "CE")) - ip->flags_and_fragment_offset |= clib_host_to_net_u16 (IP4_HEADER_FLAG_CONGESTION); - + ip->flags_and_fragment_offset |= + clib_host_to_net_u16 (IP4_HEADER_FLAG_CONGESTION); + /* Can't parse input: try next protocol level. */ else break; @@ -223,12 +228,12 @@ uword unformat_ip4_header (unformat_input_t * input, va_list * args) /* Recurse into next protocol layer. */ { - ip_main_t * im = &ip_main; - ip_protocol_info_t * pi = ip_get_protocol_info (im, ip->protocol); + ip_main_t *im = &ip_main; + ip_protocol_info_t *pi = ip_get_protocol_info (im, ip->protocol); if (pi && pi->unformat_header) { - if (! unformat_user (input, pi->unformat_header, result)) + if (!unformat_user (input, pi->unformat_header, result)) return 0; /* Result may have moved. */ @@ -241,3 +246,11 @@ uword unformat_ip4_header (unformat_input_t * input, va_list * args) return 1; } + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip4_forward.c b/vnet/vnet/ip/ip4_forward.c index 43a894075dd..27f2ece83c3 100644 --- a/vnet/vnet/ip/ip4_forward.c +++ b/vnet/vnet/ip/ip4_forward.c @@ -43,10 +43,10 @@ #include <vnet/ethernet/arp_packet.h> /* for ethernet_arp_header_t */ #include <vnet/ppp/ppp.h> #include <vnet/srp/srp.h> /* for srp_hw_interface_class */ -#include <vnet/api_errno.h> /* for API error numbers */ -#include <vnet/fib/fib_table.h> /* for FIB table and entry creation */ -#include <vnet/fib/fib_entry.h> /* for FIB table and entry creation */ -#include <vnet/fib/fib_urpf_list.h> /* for FIB uRPF check */ +#include <vnet/api_errno.h> /* for API error numbers */ +#include <vnet/fib/fib_table.h> /* for FIB table and entry creation */ +#include <vnet/fib/fib_entry.h> /* for FIB table and entry creation */ +#include <vnet/fib/fib_urpf_list.h> /* for FIB uRPF check */ #include <vnet/fib/ip4_fib.h> #include <vnet/dpo/load_balance.h> #include <vnet/dpo/classify_dpo.h> @@ -60,9 +60,9 @@ void ip4_forward_next_trace (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame, - vlib_rx_or_tx_t which_adj_index); + vlib_node_runtime_t * node, + vlib_frame_t * frame, + vlib_rx_or_tx_t which_adj_index); always_inline uword ip4_lookup_inline (vlib_main_t * vm, @@ -70,11 +70,11 @@ ip4_lookup_inline (vlib_main_t * vm, vlib_frame_t * frame, int lookup_for_responses_to_locally_received_packets) { - ip4_main_t * im = &ip4_main; - vlib_combined_counter_main_t * cm = &load_balance_main.lbm_to_counters; - u32 n_left_from, n_left_to_next, * from, * to_next; + ip4_main_t *im = &ip4_main; + vlib_combined_counter_main_t *cm = &load_balance_main.lbm_to_counters; + u32 n_left_from, n_left_to_next, *from, *to_next; ip_lookup_next_t next; - u32 cpu_index = os_get_cpu_number(); + u32 cpu_index = os_get_cpu_number (); from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; @@ -82,216 +82,239 @@ ip4_lookup_inline (vlib_main_t * vm, while (n_left_from > 0) { - vlib_get_next_frame (vm, node, next, - to_next, n_left_to_next); + vlib_get_next_frame (vm, node, next, to_next, n_left_to_next); while (n_left_from >= 8 && n_left_to_next >= 4) - { - vlib_buffer_t * p0, * p1, * p2, * p3; - ip4_header_t * ip0, * ip1, * ip2, * ip3; - __attribute__((unused)) tcp_header_t * tcp0, * tcp1, * tcp2, * tcp3; - ip_lookup_next_t next0, next1, next2, next3; - const load_balance_t * lb0, * lb1, * lb2, * lb3; - ip4_fib_mtrie_t * mtrie0, * mtrie1, * mtrie2, * mtrie3; - ip4_fib_mtrie_leaf_t leaf0, leaf1, leaf2, leaf3; - ip4_address_t * dst_addr0, *dst_addr1, *dst_addr2, *dst_addr3; - __attribute__((unused)) u32 pi0, fib_index0, lb_index0, is_tcp_udp0; - __attribute__((unused)) u32 pi1, fib_index1, lb_index1, is_tcp_udp1; - __attribute__((unused)) u32 pi2, fib_index2, lb_index2, is_tcp_udp2; - __attribute__((unused)) u32 pi3, fib_index3, lb_index3, is_tcp_udp3; - flow_hash_config_t flow_hash_config0, flow_hash_config1; - flow_hash_config_t flow_hash_config2, flow_hash_config3; - u32 hash_c0, hash_c1, hash_c2, hash_c3; + { + vlib_buffer_t *p0, *p1, *p2, *p3; + ip4_header_t *ip0, *ip1, *ip2, *ip3; + __attribute__ ((unused)) tcp_header_t *tcp0, *tcp1, *tcp2, *tcp3; + ip_lookup_next_t next0, next1, next2, next3; + const load_balance_t *lb0, *lb1, *lb2, *lb3; + ip4_fib_mtrie_t *mtrie0, *mtrie1, *mtrie2, *mtrie3; + ip4_fib_mtrie_leaf_t leaf0, leaf1, leaf2, leaf3; + ip4_address_t *dst_addr0, *dst_addr1, *dst_addr2, *dst_addr3; + __attribute__ ((unused)) u32 pi0, fib_index0, lb_index0, + is_tcp_udp0; + __attribute__ ((unused)) u32 pi1, fib_index1, lb_index1, + is_tcp_udp1; + __attribute__ ((unused)) u32 pi2, fib_index2, lb_index2, + is_tcp_udp2; + __attribute__ ((unused)) u32 pi3, fib_index3, lb_index3, + is_tcp_udp3; + flow_hash_config_t flow_hash_config0, flow_hash_config1; + flow_hash_config_t flow_hash_config2, flow_hash_config3; + u32 hash_c0, hash_c1, hash_c2, hash_c3; const dpo_id_t *dpo0, *dpo1, *dpo2, *dpo3; - /* Prefetch next iteration. */ - { - vlib_buffer_t * p4, * p5, * p6, * p7; - - p4 = vlib_get_buffer (vm, from[4]); - p5 = vlib_get_buffer (vm, from[5]); - p6 = vlib_get_buffer (vm, from[6]); - p7 = vlib_get_buffer (vm, from[7]); - - vlib_prefetch_buffer_header (p4, LOAD); - vlib_prefetch_buffer_header (p5, LOAD); - vlib_prefetch_buffer_header (p6, LOAD); - vlib_prefetch_buffer_header (p7, LOAD); - - CLIB_PREFETCH (p4->data, sizeof (ip0[0]), LOAD); - CLIB_PREFETCH (p5->data, sizeof (ip0[0]), LOAD); - CLIB_PREFETCH (p6->data, sizeof (ip0[0]), LOAD); - CLIB_PREFETCH (p7->data, sizeof (ip0[0]), LOAD); - } - - pi0 = to_next[0] = from[0]; - pi1 = to_next[1] = from[1]; - pi2 = to_next[2] = from[2]; - pi3 = to_next[3] = from[3]; - - from += 4; - to_next += 4; - n_left_to_next -= 4; - n_left_from -= 4; - - p0 = vlib_get_buffer (vm, pi0); - p1 = vlib_get_buffer (vm, pi1); - p2 = vlib_get_buffer (vm, pi2); - p3 = vlib_get_buffer (vm, pi3); - - ip0 = vlib_buffer_get_current (p0); - ip1 = vlib_buffer_get_current (p1); - ip2 = vlib_buffer_get_current (p2); - ip3 = vlib_buffer_get_current (p3); - - dst_addr0 = &ip0->dst_address; - dst_addr1 = &ip1->dst_address; - dst_addr2 = &ip2->dst_address; - dst_addr3 = &ip3->dst_address; - - fib_index0 = vec_elt (im->fib_index_by_sw_if_index, vnet_buffer (p0)->sw_if_index[VLIB_RX]); - fib_index1 = vec_elt (im->fib_index_by_sw_if_index, vnet_buffer (p1)->sw_if_index[VLIB_RX]); - fib_index2 = vec_elt (im->fib_index_by_sw_if_index, vnet_buffer (p2)->sw_if_index[VLIB_RX]); - fib_index3 = vec_elt (im->fib_index_by_sw_if_index, vnet_buffer (p3)->sw_if_index[VLIB_RX]); - fib_index0 = (vnet_buffer(p0)->sw_if_index[VLIB_TX] == (u32)~0) ? - fib_index0 : vnet_buffer(p0)->sw_if_index[VLIB_TX]; - fib_index1 = (vnet_buffer(p1)->sw_if_index[VLIB_TX] == (u32)~0) ? - fib_index1 : vnet_buffer(p1)->sw_if_index[VLIB_TX]; - fib_index2 = (vnet_buffer(p2)->sw_if_index[VLIB_TX] == (u32)~0) ? - fib_index2 : vnet_buffer(p2)->sw_if_index[VLIB_TX]; - fib_index3 = (vnet_buffer(p3)->sw_if_index[VLIB_TX] == (u32)~0) ? - fib_index3 : vnet_buffer(p3)->sw_if_index[VLIB_TX]; - - - if (! lookup_for_responses_to_locally_received_packets) - { + /* Prefetch next iteration. */ + { + vlib_buffer_t *p4, *p5, *p6, *p7; + + p4 = vlib_get_buffer (vm, from[4]); + p5 = vlib_get_buffer (vm, from[5]); + p6 = vlib_get_buffer (vm, from[6]); + p7 = vlib_get_buffer (vm, from[7]); + + vlib_prefetch_buffer_header (p4, LOAD); + vlib_prefetch_buffer_header (p5, LOAD); + vlib_prefetch_buffer_header (p6, LOAD); + vlib_prefetch_buffer_header (p7, LOAD); + + CLIB_PREFETCH (p4->data, sizeof (ip0[0]), LOAD); + CLIB_PREFETCH (p5->data, sizeof (ip0[0]), LOAD); + CLIB_PREFETCH (p6->data, sizeof (ip0[0]), LOAD); + CLIB_PREFETCH (p7->data, sizeof (ip0[0]), LOAD); + } + + pi0 = to_next[0] = from[0]; + pi1 = to_next[1] = from[1]; + pi2 = to_next[2] = from[2]; + pi3 = to_next[3] = from[3]; + + from += 4; + to_next += 4; + n_left_to_next -= 4; + n_left_from -= 4; + + p0 = vlib_get_buffer (vm, pi0); + p1 = vlib_get_buffer (vm, pi1); + p2 = vlib_get_buffer (vm, pi2); + p3 = vlib_get_buffer (vm, pi3); + + ip0 = vlib_buffer_get_current (p0); + ip1 = vlib_buffer_get_current (p1); + ip2 = vlib_buffer_get_current (p2); + ip3 = vlib_buffer_get_current (p3); + + dst_addr0 = &ip0->dst_address; + dst_addr1 = &ip1->dst_address; + dst_addr2 = &ip2->dst_address; + dst_addr3 = &ip3->dst_address; + + fib_index0 = + vec_elt (im->fib_index_by_sw_if_index, + vnet_buffer (p0)->sw_if_index[VLIB_RX]); + fib_index1 = + vec_elt (im->fib_index_by_sw_if_index, + vnet_buffer (p1)->sw_if_index[VLIB_RX]); + fib_index2 = + vec_elt (im->fib_index_by_sw_if_index, + vnet_buffer (p2)->sw_if_index[VLIB_RX]); + fib_index3 = + vec_elt (im->fib_index_by_sw_if_index, + vnet_buffer (p3)->sw_if_index[VLIB_RX]); + fib_index0 = + (vnet_buffer (p0)->sw_if_index[VLIB_TX] == + (u32) ~ 0) ? fib_index0 : vnet_buffer (p0)->sw_if_index[VLIB_TX]; + fib_index1 = + (vnet_buffer (p1)->sw_if_index[VLIB_TX] == + (u32) ~ 0) ? fib_index1 : vnet_buffer (p1)->sw_if_index[VLIB_TX]; + fib_index2 = + (vnet_buffer (p2)->sw_if_index[VLIB_TX] == + (u32) ~ 0) ? fib_index2 : vnet_buffer (p2)->sw_if_index[VLIB_TX]; + fib_index3 = + (vnet_buffer (p3)->sw_if_index[VLIB_TX] == + (u32) ~ 0) ? fib_index3 : vnet_buffer (p3)->sw_if_index[VLIB_TX]; + + + if (!lookup_for_responses_to_locally_received_packets) + { mtrie0 = &ip4_fib_get (fib_index0)->mtrie; mtrie1 = &ip4_fib_get (fib_index1)->mtrie; mtrie2 = &ip4_fib_get (fib_index2)->mtrie; mtrie3 = &ip4_fib_get (fib_index3)->mtrie; - leaf0 = leaf1 = leaf2 = leaf3 = IP4_FIB_MTRIE_LEAF_ROOT; - - leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, dst_addr0, 0); - leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, dst_addr1, 0); - leaf2 = ip4_fib_mtrie_lookup_step (mtrie2, leaf2, dst_addr2, 0); - leaf3 = ip4_fib_mtrie_lookup_step (mtrie3, leaf3, dst_addr3, 0); - } - - tcp0 = (void *) (ip0 + 1); - tcp1 = (void *) (ip1 + 1); - tcp2 = (void *) (ip2 + 1); - tcp3 = (void *) (ip3 + 1); - - is_tcp_udp0 = (ip0->protocol == IP_PROTOCOL_TCP - || ip0->protocol == IP_PROTOCOL_UDP); - is_tcp_udp1 = (ip1->protocol == IP_PROTOCOL_TCP - || ip1->protocol == IP_PROTOCOL_UDP); - is_tcp_udp2 = (ip2->protocol == IP_PROTOCOL_TCP - || ip2->protocol == IP_PROTOCOL_UDP); - is_tcp_udp3 = (ip1->protocol == IP_PROTOCOL_TCP - || ip1->protocol == IP_PROTOCOL_UDP); - - if (! lookup_for_responses_to_locally_received_packets) - { - leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, dst_addr0, 1); - leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, dst_addr1, 1); - leaf2 = ip4_fib_mtrie_lookup_step (mtrie2, leaf2, dst_addr2, 1); - leaf3 = ip4_fib_mtrie_lookup_step (mtrie3, leaf3, dst_addr3, 1); - } - - if (! lookup_for_responses_to_locally_received_packets) - { - leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, dst_addr0, 2); - leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, dst_addr1, 2); - leaf2 = ip4_fib_mtrie_lookup_step (mtrie2, leaf2, dst_addr2, 2); - leaf3 = ip4_fib_mtrie_lookup_step (mtrie3, leaf3, dst_addr3, 2); - } - - if (! lookup_for_responses_to_locally_received_packets) - { - leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, dst_addr0, 3); - leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, dst_addr1, 3); - leaf2 = ip4_fib_mtrie_lookup_step (mtrie2, leaf2, dst_addr2, 3); - leaf3 = ip4_fib_mtrie_lookup_step (mtrie3, leaf3, dst_addr3, 3); - } - - if (lookup_for_responses_to_locally_received_packets) - { - lb_index0 = vnet_buffer (p0)->ip.adj_index[VLIB_RX]; - lb_index1 = vnet_buffer (p1)->ip.adj_index[VLIB_RX]; - lb_index2 = vnet_buffer (p2)->ip.adj_index[VLIB_RX]; - lb_index3 = vnet_buffer (p3)->ip.adj_index[VLIB_RX]; - } - else - { - /* Handle default route. */ - leaf0 = (leaf0 == IP4_FIB_MTRIE_LEAF_EMPTY ? mtrie0->default_leaf : leaf0); - leaf1 = (leaf1 == IP4_FIB_MTRIE_LEAF_EMPTY ? mtrie1->default_leaf : leaf1); - leaf2 = (leaf2 == IP4_FIB_MTRIE_LEAF_EMPTY ? mtrie2->default_leaf : leaf2); - leaf3 = (leaf3 == IP4_FIB_MTRIE_LEAF_EMPTY ? mtrie3->default_leaf : leaf3); - lb_index0 = ip4_fib_mtrie_leaf_get_adj_index (leaf0); - lb_index1 = ip4_fib_mtrie_leaf_get_adj_index (leaf1); - lb_index2 = ip4_fib_mtrie_leaf_get_adj_index (leaf2); - lb_index3 = ip4_fib_mtrie_leaf_get_adj_index (leaf3); - } + leaf0 = leaf1 = leaf2 = leaf3 = IP4_FIB_MTRIE_LEAF_ROOT; + + leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, dst_addr0, 0); + leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, dst_addr1, 0); + leaf2 = ip4_fib_mtrie_lookup_step (mtrie2, leaf2, dst_addr2, 0); + leaf3 = ip4_fib_mtrie_lookup_step (mtrie3, leaf3, dst_addr3, 0); + } + + tcp0 = (void *) (ip0 + 1); + tcp1 = (void *) (ip1 + 1); + tcp2 = (void *) (ip2 + 1); + tcp3 = (void *) (ip3 + 1); + + is_tcp_udp0 = (ip0->protocol == IP_PROTOCOL_TCP + || ip0->protocol == IP_PROTOCOL_UDP); + is_tcp_udp1 = (ip1->protocol == IP_PROTOCOL_TCP + || ip1->protocol == IP_PROTOCOL_UDP); + is_tcp_udp2 = (ip2->protocol == IP_PROTOCOL_TCP + || ip2->protocol == IP_PROTOCOL_UDP); + is_tcp_udp3 = (ip1->protocol == IP_PROTOCOL_TCP + || ip1->protocol == IP_PROTOCOL_UDP); + + if (!lookup_for_responses_to_locally_received_packets) + { + leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, dst_addr0, 1); + leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, dst_addr1, 1); + leaf2 = ip4_fib_mtrie_lookup_step (mtrie2, leaf2, dst_addr2, 1); + leaf3 = ip4_fib_mtrie_lookup_step (mtrie3, leaf3, dst_addr3, 1); + } + + if (!lookup_for_responses_to_locally_received_packets) + { + leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, dst_addr0, 2); + leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, dst_addr1, 2); + leaf2 = ip4_fib_mtrie_lookup_step (mtrie2, leaf2, dst_addr2, 2); + leaf3 = ip4_fib_mtrie_lookup_step (mtrie3, leaf3, dst_addr3, 2); + } + + if (!lookup_for_responses_to_locally_received_packets) + { + leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, dst_addr0, 3); + leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, dst_addr1, 3); + leaf2 = ip4_fib_mtrie_lookup_step (mtrie2, leaf2, dst_addr2, 3); + leaf3 = ip4_fib_mtrie_lookup_step (mtrie3, leaf3, dst_addr3, 3); + } + + if (lookup_for_responses_to_locally_received_packets) + { + lb_index0 = vnet_buffer (p0)->ip.adj_index[VLIB_RX]; + lb_index1 = vnet_buffer (p1)->ip.adj_index[VLIB_RX]; + lb_index2 = vnet_buffer (p2)->ip.adj_index[VLIB_RX]; + lb_index3 = vnet_buffer (p3)->ip.adj_index[VLIB_RX]; + } + else + { + /* Handle default route. */ + leaf0 = + (leaf0 == + IP4_FIB_MTRIE_LEAF_EMPTY ? mtrie0->default_leaf : leaf0); + leaf1 = + (leaf1 == + IP4_FIB_MTRIE_LEAF_EMPTY ? mtrie1->default_leaf : leaf1); + leaf2 = + (leaf2 == + IP4_FIB_MTRIE_LEAF_EMPTY ? mtrie2->default_leaf : leaf2); + leaf3 = + (leaf3 == + IP4_FIB_MTRIE_LEAF_EMPTY ? mtrie3->default_leaf : leaf3); + lb_index0 = ip4_fib_mtrie_leaf_get_adj_index (leaf0); + lb_index1 = ip4_fib_mtrie_leaf_get_adj_index (leaf1); + lb_index2 = ip4_fib_mtrie_leaf_get_adj_index (leaf2); + lb_index3 = ip4_fib_mtrie_leaf_get_adj_index (leaf3); + } lb0 = load_balance_get (lb_index0); lb1 = load_balance_get (lb_index1); lb2 = load_balance_get (lb_index2); lb3 = load_balance_get (lb_index3); - /* Use flow hash to compute multipath adjacency. */ - hash_c0 = vnet_buffer (p0)->ip.flow_hash = 0; - hash_c1 = vnet_buffer (p1)->ip.flow_hash = 0; - hash_c2 = vnet_buffer (p2)->ip.flow_hash = 0; - hash_c3 = vnet_buffer (p3)->ip.flow_hash = 0; - if (PREDICT_FALSE (lb0->lb_n_buckets > 1)) - { - flow_hash_config0 = lb0->lb_hash_config; - hash_c0 = vnet_buffer (p0)->ip.flow_hash = - ip4_compute_flow_hash (ip0, flow_hash_config0); - } - if (PREDICT_FALSE(lb1->lb_n_buckets > 1)) - { + /* Use flow hash to compute multipath adjacency. */ + hash_c0 = vnet_buffer (p0)->ip.flow_hash = 0; + hash_c1 = vnet_buffer (p1)->ip.flow_hash = 0; + hash_c2 = vnet_buffer (p2)->ip.flow_hash = 0; + hash_c3 = vnet_buffer (p3)->ip.flow_hash = 0; + if (PREDICT_FALSE (lb0->lb_n_buckets > 1)) + { + flow_hash_config0 = lb0->lb_hash_config; + hash_c0 = vnet_buffer (p0)->ip.flow_hash = + ip4_compute_flow_hash (ip0, flow_hash_config0); + } + if (PREDICT_FALSE (lb1->lb_n_buckets > 1)) + { flow_hash_config1 = lb1->lb_hash_config; - hash_c1 = vnet_buffer (p1)->ip.flow_hash = - ip4_compute_flow_hash (ip1, flow_hash_config1); - } - if (PREDICT_FALSE (lb2->lb_n_buckets > 1)) - { - flow_hash_config2 = lb2->lb_hash_config; - hash_c2 = vnet_buffer (p2)->ip.flow_hash = - ip4_compute_flow_hash (ip2, flow_hash_config2); - } - if (PREDICT_FALSE(lb3->lb_n_buckets > 1)) - { + hash_c1 = vnet_buffer (p1)->ip.flow_hash = + ip4_compute_flow_hash (ip1, flow_hash_config1); + } + if (PREDICT_FALSE (lb2->lb_n_buckets > 1)) + { + flow_hash_config2 = lb2->lb_hash_config; + hash_c2 = vnet_buffer (p2)->ip.flow_hash = + ip4_compute_flow_hash (ip2, flow_hash_config2); + } + if (PREDICT_FALSE (lb3->lb_n_buckets > 1)) + { flow_hash_config3 = lb3->lb_hash_config; - hash_c3 = vnet_buffer (p3)->ip.flow_hash = - ip4_compute_flow_hash (ip3, flow_hash_config3); - } + hash_c3 = vnet_buffer (p3)->ip.flow_hash = + ip4_compute_flow_hash (ip3, flow_hash_config3); + } ASSERT (lb0->lb_n_buckets > 0); ASSERT (is_pow2 (lb0->lb_n_buckets)); - ASSERT (lb1->lb_n_buckets > 0); + ASSERT (lb1->lb_n_buckets > 0); ASSERT (is_pow2 (lb1->lb_n_buckets)); ASSERT (lb2->lb_n_buckets > 0); ASSERT (is_pow2 (lb2->lb_n_buckets)); - ASSERT (lb3->lb_n_buckets > 0); + ASSERT (lb3->lb_n_buckets > 0); ASSERT (is_pow2 (lb3->lb_n_buckets)); - dpo0 = load_balance_get_bucket_i(lb0, - (hash_c0 & - (lb0->lb_n_buckets_minus_1))); - dpo1 = load_balance_get_bucket_i(lb1, - (hash_c1 & - (lb1->lb_n_buckets_minus_1))); - dpo2 = load_balance_get_bucket_i(lb2, - (hash_c2 & - (lb2->lb_n_buckets_minus_1))); - dpo3 = load_balance_get_bucket_i(lb3, - (hash_c3 & - (lb3->lb_n_buckets_minus_1))); + dpo0 = load_balance_get_bucket_i (lb0, + (hash_c0 & + (lb0->lb_n_buckets_minus_1))); + dpo1 = load_balance_get_bucket_i (lb1, + (hash_c1 & + (lb1->lb_n_buckets_minus_1))); + dpo2 = load_balance_get_bucket_i (lb2, + (hash_c2 & + (lb2->lb_n_buckets_minus_1))); + dpo3 = load_balance_get_bucket_i (lb3, + (hash_c3 & + (lb3->lb_n_buckets_minus_1))); next0 = dpo0->dpoi_next_node; vnet_buffer (p0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index; @@ -302,41 +325,41 @@ ip4_lookup_inline (vlib_main_t * vm, next3 = dpo3->dpoi_next_node; vnet_buffer (p3)->ip.adj_index[VLIB_TX] = dpo3->dpoi_index; - vlib_increment_combined_counter - (cm, cpu_index, lb_index0, 1, - vlib_buffer_length_in_chain (vm, p0) - + sizeof(ethernet_header_t)); - vlib_increment_combined_counter - (cm, cpu_index, lb_index1, 1, - vlib_buffer_length_in_chain (vm, p1) - + sizeof(ethernet_header_t)); - vlib_increment_combined_counter - (cm, cpu_index, lb_index2, 1, - vlib_buffer_length_in_chain (vm, p2) - + sizeof(ethernet_header_t)); - vlib_increment_combined_counter - (cm, cpu_index, lb_index3, 1, - vlib_buffer_length_in_chain (vm, p3) - + sizeof(ethernet_header_t)); + vlib_increment_combined_counter + (cm, cpu_index, lb_index0, 1, + vlib_buffer_length_in_chain (vm, p0) + + sizeof (ethernet_header_t)); + vlib_increment_combined_counter + (cm, cpu_index, lb_index1, 1, + vlib_buffer_length_in_chain (vm, p1) + + sizeof (ethernet_header_t)); + vlib_increment_combined_counter + (cm, cpu_index, lb_index2, 1, + vlib_buffer_length_in_chain (vm, p2) + + sizeof (ethernet_header_t)); + vlib_increment_combined_counter + (cm, cpu_index, lb_index3, 1, + vlib_buffer_length_in_chain (vm, p3) + + sizeof (ethernet_header_t)); vlib_validate_buffer_enqueue_x4 (vm, node, next, to_next, n_left_to_next, pi0, pi1, pi2, pi3, - next0, next1, next2, next3); - } + next0, next1, next2, next3); + } while (n_left_from > 0 && n_left_to_next > 0) { - vlib_buffer_t * p0; - ip4_header_t * ip0; - __attribute__((unused)) tcp_header_t * tcp0; + vlib_buffer_t *p0; + ip4_header_t *ip0; + __attribute__ ((unused)) tcp_header_t *tcp0; ip_lookup_next_t next0; const load_balance_t *lb0; - ip4_fib_mtrie_t * mtrie0; + ip4_fib_mtrie_t *mtrie0; ip4_fib_mtrie_leaf_t leaf0; - ip4_address_t * dst_addr0; - __attribute__((unused)) u32 pi0, fib_index0, is_tcp_udp0, lbi0; - flow_hash_config_t flow_hash_config0; + ip4_address_t *dst_addr0; + __attribute__ ((unused)) u32 pi0, fib_index0, is_tcp_udp0, lbi0; + flow_hash_config_t flow_hash_config0; const dpo_id_t *dpo0; u32 hash_c0; @@ -349,13 +372,16 @@ ip4_lookup_inline (vlib_main_t * vm, dst_addr0 = &ip0->dst_address; - fib_index0 = vec_elt (im->fib_index_by_sw_if_index, vnet_buffer (p0)->sw_if_index[VLIB_RX]); - fib_index0 = (vnet_buffer(p0)->sw_if_index[VLIB_TX] == (u32)~0) ? - fib_index0 : vnet_buffer(p0)->sw_if_index[VLIB_TX]; + fib_index0 = + vec_elt (im->fib_index_by_sw_if_index, + vnet_buffer (p0)->sw_if_index[VLIB_RX]); + fib_index0 = + (vnet_buffer (p0)->sw_if_index[VLIB_TX] == + (u32) ~ 0) ? fib_index0 : vnet_buffer (p0)->sw_if_index[VLIB_TX]; - if (! lookup_for_responses_to_locally_received_packets) + if (!lookup_for_responses_to_locally_received_packets) { - mtrie0 = &ip4_fib_get( fib_index0)->mtrie; + mtrie0 = &ip4_fib_get (fib_index0)->mtrie; leaf0 = IP4_FIB_MTRIE_LEAF_ROOT; @@ -367,13 +393,13 @@ ip4_lookup_inline (vlib_main_t * vm, is_tcp_udp0 = (ip0->protocol == IP_PROTOCOL_TCP || ip0->protocol == IP_PROTOCOL_UDP); - if (! lookup_for_responses_to_locally_received_packets) + if (!lookup_for_responses_to_locally_received_packets) leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, dst_addr0, 1); - if (! lookup_for_responses_to_locally_received_packets) + if (!lookup_for_responses_to_locally_received_packets) leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, dst_addr0, 2); - if (! lookup_for_responses_to_locally_received_packets) + if (!lookup_for_responses_to_locally_received_packets) leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, dst_addr0, 3); if (lookup_for_responses_to_locally_received_packets) @@ -381,35 +407,36 @@ ip4_lookup_inline (vlib_main_t * vm, else { /* Handle default route. */ - leaf0 = (leaf0 == IP4_FIB_MTRIE_LEAF_EMPTY ? mtrie0->default_leaf : leaf0); + leaf0 = + (leaf0 == + IP4_FIB_MTRIE_LEAF_EMPTY ? mtrie0->default_leaf : leaf0); lbi0 = ip4_fib_mtrie_leaf_get_adj_index (leaf0); } lb0 = load_balance_get (lbi0); /* Use flow hash to compute multipath adjacency. */ - hash_c0 = vnet_buffer (p0)->ip.flow_hash = 0; - if (PREDICT_FALSE(lb0->lb_n_buckets > 1)) - { + hash_c0 = vnet_buffer (p0)->ip.flow_hash = 0; + if (PREDICT_FALSE (lb0->lb_n_buckets > 1)) + { flow_hash_config0 = lb0->lb_hash_config; - hash_c0 = vnet_buffer (p0)->ip.flow_hash = - ip4_compute_flow_hash (ip0, flow_hash_config0); - } + hash_c0 = vnet_buffer (p0)->ip.flow_hash = + ip4_compute_flow_hash (ip0, flow_hash_config0); + } ASSERT (lb0->lb_n_buckets > 0); ASSERT (is_pow2 (lb0->lb_n_buckets)); - dpo0 = load_balance_get_bucket_i(lb0, - (hash_c0 & - (lb0->lb_n_buckets_minus_1))); + dpo0 = load_balance_get_bucket_i (lb0, + (hash_c0 & + (lb0->lb_n_buckets_minus_1))); next0 = dpo0->dpoi_next_node; vnet_buffer (p0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index; vlib_increment_combined_counter - (cm, cpu_index, lbi0, 1, - vlib_buffer_length_in_chain (vm, p0)); + (cm, cpu_index, lbi0, 1, vlib_buffer_length_in_chain (vm, p0)); from += 1; to_next += 1; @@ -421,8 +448,7 @@ ip4_lookup_inline (vlib_main_t * vm, n_left_to_next += 1; vlib_put_next_frame (vm, node, next, n_left_to_next); next = next0; - vlib_get_next_frame (vm, node, next, - to_next, n_left_to_next); + vlib_get_next_frame (vm, node, next, to_next, n_left_to_next); to_next[0] = pi0; to_next += 1; n_left_to_next -= 1; @@ -433,7 +459,7 @@ ip4_lookup_inline (vlib_main_t * vm, } if (node->flags & VLIB_NODE_FLAG_TRACE) - ip4_forward_next_trace(vm, node, frame, VLIB_TX); + ip4_forward_next_trace (vm, node, frame, VLIB_TX); return frame->n_vectors; } @@ -472,63 +498,57 @@ ip4_lookup_inline (vlib_main_t * vm, */ static uword ip4_lookup (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) + vlib_node_runtime_t * node, vlib_frame_t * frame) { return ip4_lookup_inline (vm, node, frame, - /* lookup_for_responses_to_locally_received_packets */ 0); + /* lookup_for_responses_to_locally_received_packets */ + 0); } -static u8 * format_ip4_lookup_trace (u8 * s, va_list * args); - -VLIB_REGISTER_NODE (ip4_lookup_node) = { - .function = ip4_lookup, - .name = "ip4-lookup", - .vector_size = sizeof (u32), +static u8 *format_ip4_lookup_trace (u8 * s, va_list * args); - .format_trace = format_ip4_lookup_trace, - .n_next_nodes = IP_LOOKUP_N_NEXT, - .next_nodes = IP4_LOOKUP_NEXT_NODES, -}; +VLIB_REGISTER_NODE (ip4_lookup_node) = +{ +.function = ip4_lookup,.name = "ip4-lookup",.vector_size = + sizeof (u32),.format_trace = format_ip4_lookup_trace,.n_next_nodes = + IP_LOOKUP_N_NEXT,.next_nodes = IP4_LOOKUP_NEXT_NODES,}; -VLIB_NODE_FUNCTION_MULTIARCH (ip4_lookup_node, ip4_lookup) +VLIB_NODE_FUNCTION_MULTIARCH (ip4_lookup_node, ip4_lookup); always_inline uword ip4_load_balance (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) + vlib_node_runtime_t * node, vlib_frame_t * frame) { - vlib_combined_counter_main_t * cm = &load_balance_main.lbm_via_counters; - u32 n_left_from, n_left_to_next, * from, * to_next; + vlib_combined_counter_main_t *cm = &load_balance_main.lbm_via_counters; + u32 n_left_from, n_left_to_next, *from, *to_next; ip_lookup_next_t next; - u32 cpu_index = os_get_cpu_number(); + u32 cpu_index = os_get_cpu_number (); from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; next = node->cached_next_index; if (node->flags & VLIB_NODE_FLAG_TRACE) - ip4_forward_next_trace(vm, node, frame, VLIB_TX); + ip4_forward_next_trace (vm, node, frame, VLIB_TX); while (n_left_from > 0) { - vlib_get_next_frame (vm, node, next, - to_next, n_left_to_next); + vlib_get_next_frame (vm, node, next, to_next, n_left_to_next); while (n_left_from >= 4 && n_left_to_next >= 2) - { - ip_lookup_next_t next0, next1; + { + ip_lookup_next_t next0, next1; const load_balance_t *lb0, *lb1; - vlib_buffer_t * p0, *p1; + vlib_buffer_t *p0, *p1; u32 pi0, lbi0, hc0, pi1, lbi1, hc1; const ip4_header_t *ip0, *ip1; const dpo_id_t *dpo0, *dpo1; - /* Prefetch next iteration. */ - { - vlib_buffer_t * p2, * p3; + /* Prefetch next iteration. */ + { + vlib_buffer_t *p2, *p3; p2 = vlib_get_buffer (vm, from[2]); p3 = vlib_get_buffer (vm, from[3]); @@ -538,7 +558,7 @@ ip4_load_balance (vlib_main_t * vm, CLIB_PREFETCH (p2->data, sizeof (ip0[0]), STORE); CLIB_PREFETCH (p3->data, sizeof (ip0[0]), STORE); - } + } pi0 = to_next[0] = from[0]; pi1 = to_next[1] = from[1]; @@ -556,43 +576,51 @@ ip4_load_balance (vlib_main_t * vm, lbi0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX]; lbi1 = vnet_buffer (p1)->ip.adj_index[VLIB_TX]; - lb0 = load_balance_get(lbi0); - lb1 = load_balance_get(lbi1); - - /* - * this node is for via FIBs we can re-use the hash value from the - * to node if present. - * We don't want to use the same hash value at each level in the recursion - * graph as that would lead to polarisation - */ - hc0 = vnet_buffer (p0)->ip.flow_hash = 0; - hc1 = vnet_buffer (p1)->ip.flow_hash = 0; - - if (PREDICT_FALSE (lb0->lb_n_buckets > 1)) - { - if (PREDICT_TRUE (vnet_buffer(p0)->ip.flow_hash)) - { - hc0 = vnet_buffer(p0)->ip.flow_hash = vnet_buffer(p0)->ip.flow_hash >> 1; - } - else - { - hc0 = vnet_buffer(p0)->ip.flow_hash = ip4_compute_flow_hash(ip0, hc0); - } - } - if (PREDICT_FALSE (lb1->lb_n_buckets > 1)) - { - if (PREDICT_TRUE (vnet_buffer(p1)->ip.flow_hash)) - { - hc1 = vnet_buffer(p1)->ip.flow_hash = vnet_buffer(p1)->ip.flow_hash >> 1; - } - else - { - hc1 = vnet_buffer(p1)->ip.flow_hash = ip4_compute_flow_hash(ip1, hc1); - } - } - - dpo0 = load_balance_get_bucket_i(lb0, hc0 & (lb0->lb_n_buckets_minus_1)); - dpo1 = load_balance_get_bucket_i(lb1, hc1 & (lb1->lb_n_buckets_minus_1)); + lb0 = load_balance_get (lbi0); + lb1 = load_balance_get (lbi1); + + /* + * this node is for via FIBs we can re-use the hash value from the + * to node if present. + * We don't want to use the same hash value at each level in the recursion + * graph as that would lead to polarisation + */ + hc0 = vnet_buffer (p0)->ip.flow_hash = 0; + hc1 = vnet_buffer (p1)->ip.flow_hash = 0; + + if (PREDICT_FALSE (lb0->lb_n_buckets > 1)) + { + if (PREDICT_TRUE (vnet_buffer (p0)->ip.flow_hash)) + { + hc0 = vnet_buffer (p0)->ip.flow_hash = + vnet_buffer (p0)->ip.flow_hash >> 1; + } + else + { + hc0 = vnet_buffer (p0)->ip.flow_hash = + ip4_compute_flow_hash (ip0, hc0); + } + } + if (PREDICT_FALSE (lb1->lb_n_buckets > 1)) + { + if (PREDICT_TRUE (vnet_buffer (p1)->ip.flow_hash)) + { + hc1 = vnet_buffer (p1)->ip.flow_hash = + vnet_buffer (p1)->ip.flow_hash >> 1; + } + else + { + hc1 = vnet_buffer (p1)->ip.flow_hash = + ip4_compute_flow_hash (ip1, hc1); + } + } + + dpo0 = + load_balance_get_bucket_i (lb0, + hc0 & (lb0->lb_n_buckets_minus_1)); + dpo1 = + load_balance_get_bucket_i (lb1, + hc1 & (lb1->lb_n_buckets_minus_1)); next0 = dpo0->dpoi_next_node; next1 = dpo1->dpoi_next_node; @@ -601,22 +629,20 @@ ip4_load_balance (vlib_main_t * vm, vnet_buffer (p1)->ip.adj_index[VLIB_TX] = dpo1->dpoi_index; vlib_increment_combined_counter - (cm, cpu_index, lbi0, 1, - vlib_buffer_length_in_chain (vm, p0)); + (cm, cpu_index, lbi0, 1, vlib_buffer_length_in_chain (vm, p0)); vlib_increment_combined_counter - (cm, cpu_index, lbi1, 1, - vlib_buffer_length_in_chain (vm, p1)); + (cm, cpu_index, lbi1, 1, vlib_buffer_length_in_chain (vm, p1)); vlib_validate_buffer_enqueue_x2 (vm, node, next, to_next, n_left_to_next, pi0, pi1, next0, next1); - } + } while (n_left_from > 0 && n_left_to_next > 0) { ip_lookup_next_t next0; const load_balance_t *lb0; - vlib_buffer_t * p0; + vlib_buffer_t *p0; u32 pi0, lbi0, hc0; const ip4_header_t *ip0; const dpo_id_t *dpo0; @@ -633,29 +659,32 @@ ip4_load_balance (vlib_main_t * vm, ip0 = vlib_buffer_get_current (p0); lbi0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX]; - lb0 = load_balance_get(lbi0); + lb0 = load_balance_get (lbi0); - hc0 = vnet_buffer (p0)->ip.flow_hash = 0; - if (PREDICT_FALSE (lb0->lb_n_buckets > 1)) - { - if (PREDICT_TRUE (vnet_buffer(p0)->ip.flow_hash)) - { - hc0 = vnet_buffer(p0)->ip.flow_hash = vnet_buffer(p0)->ip.flow_hash >> 1; - } - else - { - hc0 = vnet_buffer(p0)->ip.flow_hash = ip4_compute_flow_hash(ip0, hc0); - } - } + hc0 = vnet_buffer (p0)->ip.flow_hash = 0; + if (PREDICT_FALSE (lb0->lb_n_buckets > 1)) + { + if (PREDICT_TRUE (vnet_buffer (p0)->ip.flow_hash)) + { + hc0 = vnet_buffer (p0)->ip.flow_hash = + vnet_buffer (p0)->ip.flow_hash >> 1; + } + else + { + hc0 = vnet_buffer (p0)->ip.flow_hash = + ip4_compute_flow_hash (ip0, hc0); + } + } - dpo0 = load_balance_get_bucket_i(lb0, hc0 & (lb0->lb_n_buckets_minus_1)); + dpo0 = + load_balance_get_bucket_i (lb0, + hc0 & (lb0->lb_n_buckets_minus_1)); next0 = dpo0->dpoi_next_node; vnet_buffer (p0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index; vlib_increment_combined_counter - (cm, cpu_index, lbi0, 1, - vlib_buffer_length_in_chain (vm, p0)); + (cm, cpu_index, lbi0, 1, vlib_buffer_length_in_chain (vm, p0)); vlib_validate_buffer_enqueue_x1 (vm, node, next, to_next, n_left_to_next, @@ -668,33 +697,33 @@ ip4_load_balance (vlib_main_t * vm, return frame->n_vectors; } -VLIB_REGISTER_NODE (ip4_load_balance_node) = { - .function = ip4_load_balance, - .name = "ip4-load-balance", - .vector_size = sizeof (u32), - .sibling_of = "ip4-lookup", - - .format_trace = format_ip4_lookup_trace, -}; +VLIB_REGISTER_NODE (ip4_load_balance_node) = +{ +.function = ip4_load_balance,.name = "ip4-load-balance",.vector_size = + sizeof (u32),.sibling_of = "ip4-lookup",.format_trace = + format_ip4_lookup_trace,}; -VLIB_NODE_FUNCTION_MULTIARCH (ip4_load_balance_node, ip4_load_balance) +VLIB_NODE_FUNCTION_MULTIARCH (ip4_load_balance_node, ip4_load_balance); /* get first interface address */ ip4_address_t * ip4_interface_first_address (ip4_main_t * im, u32 sw_if_index, - ip_interface_address_t ** result_ia) + ip_interface_address_t ** result_ia) { - ip_lookup_main_t * lm = &im->lookup_main; - ip_interface_address_t * ia = 0; - ip4_address_t * result = 0; + ip_lookup_main_t *lm = &im->lookup_main; + ip_interface_address_t *ia = 0; + ip4_address_t *result = 0; foreach_ip_interface_address (lm, ia, sw_if_index, - 1 /* honor unnumbered */, - ({ - ip4_address_t * a = ip_interface_address_get_address (lm, ia); - result = a; - break; - })); + 1 /* honor unnumbered */ , + ( + { + ip4_address_t * a = + ip_interface_address_get_address (lm, ia); + result = a; + break; + } + )); if (result_ia) *result_ia = result ? ia : 0; return result; @@ -705,104 +734,79 @@ ip4_add_interface_routes (u32 sw_if_index, ip4_main_t * im, u32 fib_index, ip_interface_address_t * a) { - ip_lookup_main_t * lm = &im->lookup_main; - ip4_address_t * address = ip_interface_address_get_address (lm, a); + ip_lookup_main_t *lm = &im->lookup_main; + ip4_address_t *address = ip_interface_address_get_address (lm, a); fib_prefix_t pfx = { - .fp_len = a->address_length, - .fp_proto = FIB_PROTOCOL_IP4, - .fp_addr.ip4 = *address, + .fp_len = a->address_length, + .fp_proto = FIB_PROTOCOL_IP4, + .fp_addr.ip4 = *address, }; a->neighbor_probe_adj_index = ~0; if (pfx.fp_len < 32) - { + { fib_node_index_t fei; - fei = fib_table_entry_update_one_path(fib_index, - &pfx, - FIB_SOURCE_INTERFACE, - (FIB_ENTRY_FLAG_CONNECTED | - FIB_ENTRY_FLAG_ATTACHED), - FIB_PROTOCOL_IP4, - NULL, /* No next-hop address */ - sw_if_index, - ~0, // invalid FIB index - 1, - NULL, // no out-label stack - FIB_ROUTE_PATH_FLAG_NONE); - a->neighbor_probe_adj_index = fib_entry_get_adj(fei); - } + fei = fib_table_entry_update_one_path (fib_index, &pfx, FIB_SOURCE_INTERFACE, (FIB_ENTRY_FLAG_CONNECTED | FIB_ENTRY_FLAG_ATTACHED), FIB_PROTOCOL_IP4, NULL, /* No next-hop address */ + sw_if_index, ~0, // invalid FIB index + 1, NULL, // no out-label stack + FIB_ROUTE_PATH_FLAG_NONE); + a->neighbor_probe_adj_index = fib_entry_get_adj (fei); + } pfx.fp_len = 32; if (sw_if_index < vec_len (lm->classify_table_index_by_sw_if_index)) - { + { u32 classify_table_index = - lm->classify_table_index_by_sw_if_index [sw_if_index]; - if (classify_table_index != (u32) ~0) - { - dpo_id_t dpo = DPO_INVALID; - - dpo_set(&dpo, - DPO_CLASSIFY, - DPO_PROTO_IP4, - classify_dpo_create(DPO_PROTO_IP4, - classify_table_index)); - - fib_table_entry_special_dpo_add(fib_index, - &pfx, - FIB_SOURCE_CLASSIFY, - FIB_ENTRY_FLAG_NONE, - &dpo); - dpo_reset(&dpo); - } - } + lm->classify_table_index_by_sw_if_index[sw_if_index]; + if (classify_table_index != (u32) ~ 0) + { + dpo_id_t dpo = DPO_INVALID; + + dpo_set (&dpo, + DPO_CLASSIFY, + DPO_PROTO_IP4, + classify_dpo_create (DPO_PROTO_IP4, classify_table_index)); + + fib_table_entry_special_dpo_add (fib_index, + &pfx, + FIB_SOURCE_CLASSIFY, + FIB_ENTRY_FLAG_NONE, &dpo); + dpo_reset (&dpo); + } + } - fib_table_entry_update_one_path(fib_index, - &pfx, - FIB_SOURCE_INTERFACE, - (FIB_ENTRY_FLAG_CONNECTED | - FIB_ENTRY_FLAG_LOCAL), - FIB_PROTOCOL_IP4, - &pfx.fp_addr, - sw_if_index, - ~0, // invalid FIB index - 1, - NULL, // no out-label stack - FIB_ROUTE_PATH_FLAG_NONE); + fib_table_entry_update_one_path (fib_index, &pfx, FIB_SOURCE_INTERFACE, (FIB_ENTRY_FLAG_CONNECTED | FIB_ENTRY_FLAG_LOCAL), FIB_PROTOCOL_IP4, &pfx.fp_addr, sw_if_index, ~0, // invalid FIB index + 1, NULL, // no out-label stack + FIB_ROUTE_PATH_FLAG_NONE); } static void ip4_del_interface_routes (ip4_main_t * im, u32 fib_index, - ip4_address_t * address, - u32 address_length) + ip4_address_t * address, u32 address_length) { - fib_prefix_t pfx = { - .fp_len = address_length, - .fp_proto = FIB_PROTOCOL_IP4, - .fp_addr.ip4 = *address, - }; + fib_prefix_t pfx = { + .fp_len = address_length, + .fp_proto = FIB_PROTOCOL_IP4, + .fp_addr.ip4 = *address, + }; - if (pfx.fp_len < 32) + if (pfx.fp_len < 32) { - fib_table_entry_delete(fib_index, - &pfx, - FIB_SOURCE_INTERFACE); + fib_table_entry_delete (fib_index, &pfx, FIB_SOURCE_INTERFACE); } - pfx.fp_len = 32; - fib_table_entry_delete(fib_index, - &pfx, - FIB_SOURCE_INTERFACE); + pfx.fp_len = 32; + fib_table_entry_delete (fib_index, &pfx, FIB_SOURCE_INTERFACE); } void -ip4_sw_interface_enable_disable (u32 sw_if_index, - u32 is_enable) +ip4_sw_interface_enable_disable (u32 sw_if_index, u32 is_enable) { - ip4_main_t * im = &ip4_main; + ip4_main_t *im = &ip4_main; vec_validate_init_empty (im->ip_enabled_by_sw_if_index, sw_if_index, 0); @@ -812,19 +816,19 @@ ip4_sw_interface_enable_disable (u32 sw_if_index, if (is_enable) { if (1 != ++im->ip_enabled_by_sw_if_index[sw_if_index]) - return; + return; } else { - ASSERT(im->ip_enabled_by_sw_if_index[sw_if_index] > 0); + ASSERT (im->ip_enabled_by_sw_if_index[sw_if_index] > 0); if (0 != --im->ip_enabled_by_sw_if_index[sw_if_index]) - return; + return; } vnet_feature_enable_disable ("ip4-unicast", "ip4-lookup", sw_if_index, is_enable, 0, 0); - vnet_feature_enable_disable ("ip4-multicast", "ip4-lookup-multicast", sw_if_index, - is_enable, 0, 0); + vnet_feature_enable_disable ("ip4-multicast", "ip4-lookup-multicast", + sw_if_index, is_enable, 0, 0); } @@ -832,15 +836,14 @@ static clib_error_t * ip4_add_del_interface_address_internal (vlib_main_t * vm, u32 sw_if_index, ip4_address_t * address, - u32 address_length, - u32 is_del) + u32 address_length, u32 is_del) { - vnet_main_t * vnm = vnet_get_main(); - ip4_main_t * im = &ip4_main; - ip_lookup_main_t * lm = &im->lookup_main; - clib_error_t * error = 0; + vnet_main_t *vnm = vnet_get_main (); + ip4_main_t *im = &ip4_main; + ip_lookup_main_t *lm = &im->lookup_main; + clib_error_t *error = 0; u32 if_address_index, elts_before; - ip4_address_fib_t ip4_af, * addr_fib = 0; + ip4_address_fib_t ip4_af, *addr_fib = 0; vec_validate (im->fib_index_by_sw_if_index, sw_if_index); ip4_addr_fib_init (&ip4_af, address, @@ -852,60 +855,64 @@ ip4_add_del_interface_address_internal (vlib_main_t * vm, * subnets on interfaces. Easy fix - disallow overlapping subnets, like * most routers do. */ - if (! is_del) + if (!is_del) { /* When adding an address check that it does not conflict - with an existing address. */ - ip_interface_address_t * ia; + with an existing address. */ + ip_interface_address_t *ia; foreach_ip_interface_address (&im->lookup_main, ia, sw_if_index, - 0 /* honor unnumbered */, - ({ - ip4_address_t * x = ip_interface_address_get_address (&im->lookup_main, ia); - - if (ip4_destination_matches_route (im, address, x, ia->address_length) - || ip4_destination_matches_route (im, x, address, address_length)) - return clib_error_create ("failed to add %U which conflicts with %U for interface %U", - format_ip4_address_and_length, address, address_length, - format_ip4_address_and_length, x, ia->address_length, - format_vnet_sw_if_index_name, vnm, sw_if_index); - })); + 0 /* honor unnumbered */ , + ( + { + ip4_address_t * x = + ip_interface_address_get_address + (&im->lookup_main, ia); + if (ip4_destination_matches_route + (im, address, x, ia->address_length) + || + ip4_destination_matches_route (im, + x, + address, + address_length)) + return + clib_error_create + ("failed to add %U which conflicts with %U for interface %U", + format_ip4_address_and_length, address, + address_length, + format_ip4_address_and_length, x, + ia->address_length, + format_vnet_sw_if_index_name, vnm, + sw_if_index);} + )); } elts_before = pool_elts (lm->if_address_pool); error = ip_interface_address_add_del - (lm, - sw_if_index, - addr_fib, - address_length, - is_del, - &if_address_index); + (lm, sw_if_index, addr_fib, address_length, is_del, &if_address_index); if (error) goto done; - ip4_sw_interface_enable_disable(sw_if_index, !is_del); + ip4_sw_interface_enable_disable (sw_if_index, !is_del); if (is_del) - ip4_del_interface_routes (im, ip4_af.fib_index, address, - address_length); + ip4_del_interface_routes (im, ip4_af.fib_index, address, address_length); else - ip4_add_interface_routes (sw_if_index, - im, ip4_af.fib_index, - pool_elt_at_index - (lm->if_address_pool, if_address_index)); + ip4_add_interface_routes (sw_if_index, + im, ip4_af.fib_index, + pool_elt_at_index + (lm->if_address_pool, if_address_index)); /* If pool did not grow/shrink: add duplicate address. */ if (elts_before != pool_elts (lm->if_address_pool)) { - ip4_add_del_interface_address_callback_t * cb; + ip4_add_del_interface_address_callback_t *cb; vec_foreach (cb, im->add_del_interface_address_callbacks) cb->function (im, cb->function_opaque, sw_if_index, - address, address_length, - if_address_index, - is_del); + address, address_length, if_address_index, is_del); } - done: +done: vec_free (addr_fib); return error; } @@ -916,145 +923,161 @@ ip4_add_del_interface_address (vlib_main_t * vm, u32 sw_if_index, u32 is_del) { return ip4_add_del_interface_address_internal - (vm, sw_if_index, address, address_length, - is_del); + (vm, sw_if_index, address, address_length, is_del); } /* Built-in ip4 unicast rx feature path definition */ +/* *INDENT-OFF* */ VNET_FEATURE_ARC_INIT (ip4_unicast, static) = { - .arc_name = "ip4-unicast", - .start_nodes = VNET_FEATURES ("ip4-input", "ip4-input-no-checksum"), - .arc_index_ptr = &ip4_main.lookup_main.ucast_feature_arc_index, -}; + .arc_name = "ip4-unicast", + .start_nodes = + VNET_FEATURES ("ip4-input", "ip4-input-no-checksum"), + .arc_index_ptr = + &ip4_main.lookup_main.ucast_feature_arc_index,}; -VNET_FEATURE_INIT (ip4_flow_classify, static) = { +VNET_FEATURE_INIT (ip4_flow_classify, static) = +{ .arc_name = "ip4-unicast", .node_name = "ip4-flow-classify", .runs_before = VNET_FEATURES ("ip4-inacl"), }; -VNET_FEATURE_INIT (ip4_inacl, static) = { +VNET_FEATURE_INIT (ip4_inacl, static) = +{ .arc_name = "ip4-unicast", .node_name = "ip4-inacl", .runs_before = VNET_FEATURES ("ip4-source-check-via-rx"), }; -VNET_FEATURE_INIT (ip4_source_check_1, static) = { +VNET_FEATURE_INIT (ip4_source_check_1, static) = +{ .arc_name = "ip4-unicast", .node_name = "ip4-source-check-via-rx", .runs_before = VNET_FEATURES ("ip4-source-check-via-any"), }; -VNET_FEATURE_INIT (ip4_source_check_2, static) = { +VNET_FEATURE_INIT (ip4_source_check_2, static) = +{ .arc_name = "ip4-unicast", .node_name = "ip4-source-check-via-any", .runs_before = VNET_FEATURES ("ip4-policer-classify"), }; -VNET_FEATURE_INIT (ip4_source_and_port_range_check_rx, static) = { +VNET_FEATURE_INIT (ip4_source_and_port_range_check_rx, static) = +{ .arc_name = "ip4-unicast", .node_name = "ip4-source-and-port-range-check-rx", .runs_before = VNET_FEATURES ("ip4-policer-classify"), }; -VNET_FEATURE_INIT (ip4_policer_classify, static) = { +VNET_FEATURE_INIT (ip4_policer_classify, static) = +{ .arc_name = "ip4-unicast", .node_name = "ip4-policer-classify", .runs_before = VNET_FEATURES ("ipsec-input-ip4"), }; -VNET_FEATURE_INIT (ip4_ipsec, static) = { +VNET_FEATURE_INIT (ip4_ipsec, static) = +{ .arc_name = "ip4-unicast", .node_name = "ipsec-input-ip4", .runs_before = VNET_FEATURES ("vpath-input-ip4"), }; -VNET_FEATURE_INIT (ip4_vpath, static) = { +VNET_FEATURE_INIT (ip4_vpath, static) = +{ .arc_name = "ip4-unicast", .node_name = "vpath-input-ip4", .runs_before = VNET_FEATURES ("ip4-vxlan-bypass"), }; -VNET_FEATURE_INIT (ip4_vxlan_bypass, static) = { +VNET_FEATURE_INIT (ip4_vxlan_bypass, static) = +{ .arc_name = "ip4-unicast", .node_name = "ip4-vxlan-bypass", .runs_before = VNET_FEATURES ("ip4-lookup"), }; -VNET_FEATURE_INIT (ip4_lookup, static) = { +VNET_FEATURE_INIT (ip4_lookup, static) = +{ .arc_name = "ip4-unicast", .node_name = "ip4-lookup", .runs_before = VNET_FEATURES ("ip4-drop"), }; -VNET_FEATURE_INIT (ip4_drop, static) = { +VNET_FEATURE_INIT (ip4_drop, static) = +{ .arc_name = "ip4-unicast", .node_name = "ip4-drop", - .runs_before = 0, /* not before any other features */ + .runs_before = 0, /* not before any other features */ }; /* Built-in ip4 multicast rx feature path definition */ VNET_FEATURE_ARC_INIT (ip4_multicast, static) = { - .arc_name = "ip4-multicast", + .arc_name = "ip4-multicast", .start_nodes = VNET_FEATURES ("ip4-input", "ip4-input-no-checksum"), .arc_index_ptr = &ip4_main.lookup_main.mcast_feature_arc_index, }; -VNET_FEATURE_INIT (ip4_vpath_mc, static) = { +VNET_FEATURE_INIT (ip4_vpath_mc, static) = +{ .arc_name = "ip4-multicast", .node_name = "vpath-input-ip4", .runs_before = VNET_FEATURES ("ip4-lookup-multicast"), }; -VNET_FEATURE_INIT (ip4_lookup_mc, static) = { +VNET_FEATURE_INIT (ip4_lookup_mc, static) = +{ .arc_name = "ip4-multicast", .node_name = "ip4-lookup-multicast", .runs_before = VNET_FEATURES ("ip4-drop"), }; -VNET_FEATURE_INIT (ip4_mc_drop, static) = { +VNET_FEATURE_INIT (ip4_mc_drop, static) = +{ .arc_name = "ip4-multicast", .node_name = "ip4-drop", - .runs_before = 0, /* last feature */ + .runs_before = 0, /* last feature */ }; /* Source and port-range check ip4 tx feature path definition */ VNET_FEATURE_ARC_INIT (ip4_output, static) = { - .arc_name = "ip4-output", + .arc_name = "ip4-output", .start_nodes = VNET_FEATURES ("ip4-rewrite", "ip4-midchain"), .arc_index_ptr = &ip4_main.lookup_main.output_feature_arc_index, }; -VNET_FEATURE_INIT (ip4_source_and_port_range_check_tx, static) = { +VNET_FEATURE_INIT (ip4_source_and_port_range_check_tx, static) = +{ .arc_name = "ip4-output", .node_name = "ip4-source-and-port-range-check-tx", .runs_before = VNET_FEATURES ("ipsec-output-ip4"), }; -VNET_FEATURE_INIT (ip4_ipsec_output, static) = { +VNET_FEATURE_INIT (ip4_ipsec_output, static) = +{ .arc_name = "ip4-output", .node_name = "ipsec-output-ip4", .runs_before = VNET_FEATURES ("interface-output"), }; /* Built-in ip4 tx feature path definition */ -VNET_FEATURE_INIT (ip4_interface_output, static) = { +VNET_FEATURE_INIT (ip4_interface_output, static) = +{ .arc_name = "ip4-output", .node_name = "interface-output", - .runs_before = 0, /* not before any other features */ + .runs_before = 0, /* not before any other features */ }; - +/* *INDENT-ON* */ static clib_error_t * -ip4_sw_interface_add_del (vnet_main_t * vnm, - u32 sw_if_index, - u32 is_add) +ip4_sw_interface_add_del (vnet_main_t * vnm, u32 sw_if_index, u32 is_add) { - ip4_main_t * im = &ip4_main; + ip4_main_t *im = &ip4_main; /* Fill in lookup tables with default table (0). */ vec_validate (im->fib_index_by_sw_if_index, sw_if_index); @@ -1079,8 +1102,8 @@ ip4_main_t ip4_main; clib_error_t * ip4_lookup_init (vlib_main_t * vm) { - ip4_main_t * im = &ip4_main; - clib_error_t * error; + ip4_main_t *im = &ip4_main; + clib_error_t *error; uword i; if ((error = vlib_call_init_function (vm, vnet_feature_init))) @@ -1100,10 +1123,10 @@ ip4_lookup_init (vlib_main_t * vm) ip_lookup_init (&im->lookup_main, /* is_ip6 */ 0); /* Create FIB with index 0 and table id of 0. */ - fib_table_find_or_create_and_lock(FIB_PROTOCOL_IP4, 0); + fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, 0); { - pg_node_t * pn; + pg_node_t *pn; pn = pg_get_node (ip4_lookup_node.index); pn->unformat_edit = unformat_pg_ip4_header; } @@ -1114,7 +1137,8 @@ ip4_lookup_init (vlib_main_t * vm) memset (&h, 0, sizeof (h)); /* Set target ethernet address to all zeros. */ - memset (h.ip4_over_ethernet[1].ethernet, 0, sizeof (h.ip4_over_ethernet[1].ethernet)); + memset (h.ip4_over_ethernet[1].ethernet, 0, + sizeof (h.ip4_over_ethernet[1].ethernet)); #define _16(f,v) h.f = clib_host_to_net_u16 (v); #define _8(f,v) h.f = v; @@ -1126,8 +1150,7 @@ ip4_lookup_init (vlib_main_t * vm) #undef _16 #undef _8 - vlib_packet_template_init (vm, - &im->ip4_arp_request_packet_template, + vlib_packet_template_init (vm, &im->ip4_arp_request_packet_template, /* data */ &h, sizeof (h), /* alloc chunk size */ 8, @@ -1139,21 +1162,24 @@ ip4_lookup_init (vlib_main_t * vm) VLIB_INIT_FUNCTION (ip4_lookup_init); -typedef struct { +typedef struct +{ /* Adjacency taken. */ u32 dpo_index; u32 flow_hash; u32 fib_index; /* Packet data, possibly *after* rewrite. */ - u8 packet_data[64 - 1*sizeof(u32)]; -} ip4_forward_next_trace_t; + u8 packet_data[64 - 1 * sizeof (u32)]; +} +ip4_forward_next_trace_t; -u8 * format_ip4_forward_next_trace (u8 * s, va_list * args) +u8 * +format_ip4_forward_next_trace (u8 * s, va_list * args) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); - ip4_forward_next_trace_t * t = va_arg (*args, ip4_forward_next_trace_t *); + ip4_forward_next_trace_t *t = va_arg (*args, ip4_forward_next_trace_t *); uword indent = format_get_indent (s); s = format (s, "%U%U", format_white_space, indent, @@ -1161,38 +1187,38 @@ u8 * format_ip4_forward_next_trace (u8 * s, va_list * args) return s; } -static u8 * format_ip4_lookup_trace (u8 * s, va_list * args) +static u8 * +format_ip4_lookup_trace (u8 * s, va_list * args) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); - ip4_forward_next_trace_t * t = va_arg (*args, ip4_forward_next_trace_t *); + ip4_forward_next_trace_t *t = va_arg (*args, ip4_forward_next_trace_t *); uword indent = format_get_indent (s); s = format (s, "fib %d dpo-idx %d flow hash: 0x%08x", - t->fib_index, t->dpo_index, t->flow_hash); + t->fib_index, t->dpo_index, t->flow_hash); s = format (s, "\n%U%U", - format_white_space, indent, - format_ip4_header, t->packet_data, sizeof (t->packet_data)); + format_white_space, indent, + format_ip4_header, t->packet_data, sizeof (t->packet_data)); return s; } -static u8 * format_ip4_rewrite_trace (u8 * s, va_list * args) +static u8 * +format_ip4_rewrite_trace (u8 * s, va_list * args) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); - ip4_forward_next_trace_t * t = va_arg (*args, ip4_forward_next_trace_t *); - vnet_main_t * vnm = vnet_get_main(); + ip4_forward_next_trace_t *t = va_arg (*args, ip4_forward_next_trace_t *); + vnet_main_t *vnm = vnet_get_main (); uword indent = format_get_indent (s); s = format (s, "tx_sw_if_index %d dpo-idx %d : %U flow hash: 0x%08x", - t->fib_index, t->dpo_index, format_ip_adjacency, - t->dpo_index, FORMAT_IP_ADJACENCY_NONE, - t->flow_hash); + t->fib_index, t->dpo_index, format_ip_adjacency, + t->dpo_index, FORMAT_IP_ADJACENCY_NONE, t->flow_hash); s = format (s, "\n%U%U", - format_white_space, indent, - format_ip_adjacency_packet_data, - vnm, t->dpo_index, - t->packet_data, sizeof (t->packet_data)); + format_white_space, indent, + format_ip_adjacency_packet_data, + vnm, t->dpo_index, t->packet_data, sizeof (t->packet_data)); return s; } @@ -1200,11 +1226,10 @@ static u8 * format_ip4_rewrite_trace (u8 * s, va_list * args) void ip4_forward_next_trace (vlib_main_t * vm, vlib_node_runtime_t * node, - vlib_frame_t * frame, - vlib_rx_or_tx_t which_adj_index) + vlib_frame_t * frame, vlib_rx_or_tx_t which_adj_index) { - u32 * from, n_left; - ip4_main_t * im = &ip4_main; + u32 *from, n_left; + ip4_main_t *im = &ip4_main; n_left = frame->n_vectors; from = vlib_frame_vector_args (frame); @@ -1212,8 +1237,8 @@ ip4_forward_next_trace (vlib_main_t * vm, while (n_left >= 4) { u32 bi0, bi1; - vlib_buffer_t * b0, * b1; - ip4_forward_next_trace_t * t0, * t1; + vlib_buffer_t *b0, *b1; + ip4_forward_next_trace_t *t0, *t1; /* Prefetch next iteration. */ vlib_prefetch_buffer_with_index (vm, from[2], LOAD); @@ -1230,27 +1255,28 @@ ip4_forward_next_trace (vlib_main_t * vm, t0 = vlib_add_trace (vm, node, b0, sizeof (t0[0])); t0->dpo_index = vnet_buffer (b0)->ip.adj_index[which_adj_index]; t0->flow_hash = vnet_buffer (b0)->ip.flow_hash; - t0->fib_index = (vnet_buffer(b0)->sw_if_index[VLIB_TX] != (u32)~0) ? - vnet_buffer(b0)->sw_if_index[VLIB_TX] : - vec_elt (im->fib_index_by_sw_if_index, - vnet_buffer(b0)->sw_if_index[VLIB_RX]); + t0->fib_index = + (vnet_buffer (b0)->sw_if_index[VLIB_TX] != + (u32) ~ 0) ? vnet_buffer (b0)->sw_if_index[VLIB_TX] : + vec_elt (im->fib_index_by_sw_if_index, + vnet_buffer (b0)->sw_if_index[VLIB_RX]); clib_memcpy (t0->packet_data, - vlib_buffer_get_current (b0), - sizeof (t0->packet_data)); + vlib_buffer_get_current (b0), + sizeof (t0->packet_data)); } if (b1->flags & VLIB_BUFFER_IS_TRACED) { t1 = vlib_add_trace (vm, node, b1, sizeof (t1[0])); t1->dpo_index = vnet_buffer (b1)->ip.adj_index[which_adj_index]; t1->flow_hash = vnet_buffer (b1)->ip.flow_hash; - t1->fib_index = (vnet_buffer(b1)->sw_if_index[VLIB_TX] != (u32)~0) ? - vnet_buffer(b1)->sw_if_index[VLIB_TX] : - vec_elt (im->fib_index_by_sw_if_index, - vnet_buffer(b1)->sw_if_index[VLIB_RX]); - clib_memcpy (t1->packet_data, - vlib_buffer_get_current (b1), - sizeof (t1->packet_data)); + t1->fib_index = + (vnet_buffer (b1)->sw_if_index[VLIB_TX] != + (u32) ~ 0) ? vnet_buffer (b1)->sw_if_index[VLIB_TX] : + vec_elt (im->fib_index_by_sw_if_index, + vnet_buffer (b1)->sw_if_index[VLIB_RX]); + clib_memcpy (t1->packet_data, vlib_buffer_get_current (b1), + sizeof (t1->packet_data)); } from += 2; n_left -= 2; @@ -1259,8 +1285,8 @@ ip4_forward_next_trace (vlib_main_t * vm, while (n_left >= 1) { u32 bi0; - vlib_buffer_t * b0; - ip4_forward_next_trace_t * t0; + vlib_buffer_t *b0; + ip4_forward_next_trace_t *t0; bi0 = from[0]; @@ -1271,13 +1297,13 @@ ip4_forward_next_trace (vlib_main_t * vm, t0 = vlib_add_trace (vm, node, b0, sizeof (t0[0])); t0->dpo_index = vnet_buffer (b0)->ip.adj_index[which_adj_index]; t0->flow_hash = vnet_buffer (b0)->ip.flow_hash; - t0->fib_index = (vnet_buffer(b0)->sw_if_index[VLIB_TX] != (u32)~0) ? - vnet_buffer(b0)->sw_if_index[VLIB_TX] : - vec_elt (im->fib_index_by_sw_if_index, - vnet_buffer(b0)->sw_if_index[VLIB_RX]); - clib_memcpy (t0->packet_data, - vlib_buffer_get_current (b0), - sizeof (t0->packet_data)); + t0->fib_index = + (vnet_buffer (b0)->sw_if_index[VLIB_TX] != + (u32) ~ 0) ? vnet_buffer (b0)->sw_if_index[VLIB_TX] : + vec_elt (im->fib_index_by_sw_if_index, + vnet_buffer (b0)->sw_if_index[VLIB_RX]); + clib_memcpy (t0->packet_data, vlib_buffer_get_current (b0), + sizeof (t0->packet_data)); } from += 1; n_left -= 1; @@ -1287,19 +1313,16 @@ ip4_forward_next_trace (vlib_main_t * vm, static uword ip4_drop_or_punt (vlib_main_t * vm, vlib_node_runtime_t * node, - vlib_frame_t * frame, - ip4_error_t error_code) + vlib_frame_t * frame, ip4_error_t error_code) { - u32 * buffers = vlib_frame_vector_args (frame); + u32 *buffers = vlib_frame_vector_args (frame); uword n_packets = frame->n_vectors; - vlib_error_drop_buffers (vm, node, - buffers, + vlib_error_drop_buffers (vm, node, buffers, /* stride */ 1, n_packets, /* next */ 0, - ip4_input_node.index, - error_code); + ip4_input_node.index, error_code); if (node->flags & VLIB_NODE_FLAG_TRACE) ip4_forward_next_trace (vm, node, frame, VLIB_TX); @@ -1308,46 +1331,38 @@ ip4_drop_or_punt (vlib_main_t * vm, } static uword -ip4_drop (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ return ip4_drop_or_punt (vm, node, frame, IP4_ERROR_ADJACENCY_DROP); } +ip4_drop (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) +{ + return ip4_drop_or_punt (vm, node, frame, IP4_ERROR_ADJACENCY_DROP); +} static uword -ip4_punt (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ return ip4_drop_or_punt (vm, node, frame, IP4_ERROR_ADJACENCY_PUNT); } - -VLIB_REGISTER_NODE (ip4_drop_node,static) = { - .function = ip4_drop, - .name = "ip4-drop", - .vector_size = sizeof (u32), - - .format_trace = format_ip4_forward_next_trace, - - .n_next_nodes = 1, - .next_nodes = { - [0] = "error-drop", - }, -}; - -VLIB_NODE_FUNCTION_MULTIARCH (ip4_drop_node, ip4_drop) +ip4_punt (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) +{ + return ip4_drop_or_punt (vm, node, frame, IP4_ERROR_ADJACENCY_PUNT); +} -VLIB_REGISTER_NODE (ip4_punt_node,static) = { - .function = ip4_punt, - .name = "ip4-punt", - .vector_size = sizeof (u32), +VLIB_REGISTER_NODE (ip4_drop_node, static) = +{ + .function = ip4_drop,.name = "ip4-drop",.vector_size = + sizeof (u32),.format_trace = format_ip4_forward_next_trace,.n_next_nodes = + 1,.next_nodes = + { + [0] = "error-drop",} +,}; - .format_trace = format_ip4_forward_next_trace, +VLIB_NODE_FUNCTION_MULTIARCH (ip4_drop_node, ip4_drop); - .n_next_nodes = 1, - .next_nodes = { - [0] = "error-punt", - }, -}; +VLIB_REGISTER_NODE (ip4_punt_node, static) = +{ + .function = ip4_punt,.name = "ip4-punt",.vector_size = + sizeof (u32),.format_trace = format_ip4_forward_next_trace,.n_next_nodes = + 1,.next_nodes = + { + [0] = "error-punt",} +,}; -VLIB_NODE_FUNCTION_MULTIARCH (ip4_punt_node, ip4_punt) +VLIB_NODE_FUNCTION_MULTIARCH (ip4_punt_node, ip4_punt); /* Compute TCP/UDP/ICMP4 checksum in software. */ u16 @@ -1358,25 +1373,35 @@ ip4_tcp_udp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0, u32 ip_header_length, payload_length_host_byte_order; u32 n_this_buffer, n_bytes_left; u16 sum16; - void * data_this_buffer; + void *data_this_buffer; /* Initialize checksum with ip header. */ ip_header_length = ip4_header_bytes (ip0); - payload_length_host_byte_order = clib_net_to_host_u16 (ip0->length) - ip_header_length; - sum0 = clib_host_to_net_u32 (payload_length_host_byte_order + (ip0->protocol << 16)); + payload_length_host_byte_order = + clib_net_to_host_u16 (ip0->length) - ip_header_length; + sum0 = + clib_host_to_net_u32 (payload_length_host_byte_order + + (ip0->protocol << 16)); if (BITS (uword) == 32) { - sum0 = ip_csum_with_carry (sum0, clib_mem_unaligned (&ip0->src_address, u32)); - sum0 = ip_csum_with_carry (sum0, clib_mem_unaligned (&ip0->dst_address, u32)); + sum0 = + ip_csum_with_carry (sum0, + clib_mem_unaligned (&ip0->src_address, u32)); + sum0 = + ip_csum_with_carry (sum0, + clib_mem_unaligned (&ip0->dst_address, u32)); } else - sum0 = ip_csum_with_carry (sum0, clib_mem_unaligned (&ip0->src_address, u64)); + sum0 = + ip_csum_with_carry (sum0, clib_mem_unaligned (&ip0->src_address, u64)); n_bytes_left = n_this_buffer = payload_length_host_byte_order; data_this_buffer = (void *) ip0 + ip_header_length; if (n_this_buffer + ip_header_length > p0->current_length) - n_this_buffer = p0->current_length > ip_header_length ? p0->current_length - ip_header_length : 0; + n_this_buffer = + p0->current_length > + ip_header_length ? p0->current_length - ip_header_length : 0; while (1) { sum0 = ip_incremental_checksum (sum0, data_this_buffer, n_this_buffer); @@ -1390,7 +1415,7 @@ ip4_tcp_udp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0, n_this_buffer = p0->current_length; } - sum16 = ~ ip_csum_fold (sum0); + sum16 = ~ip_csum_fold (sum0); return sum16; } @@ -1398,8 +1423,8 @@ ip4_tcp_udp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0, u32 ip4_tcp_udp_validate_checksum (vlib_main_t * vm, vlib_buffer_t * p0) { - ip4_header_t * ip0 = vlib_buffer_get_current (p0); - udp_header_t * udp0; + ip4_header_t *ip0 = vlib_buffer_get_current (p0); + udp_header_t *udp0; u16 sum16; ASSERT (ip0->protocol == IP_PROTOCOL_TCP @@ -1422,15 +1447,14 @@ ip4_tcp_udp_validate_checksum (vlib_main_t * vm, vlib_buffer_t * p0) } static uword -ip4_local (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) +ip4_local (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { - ip4_main_t * im = &ip4_main; - ip_lookup_main_t * lm = &im->lookup_main; + ip4_main_t *im = &ip4_main; + ip_lookup_main_t *lm = &im->lookup_main; ip_local_next_t next_index; - u32 * from, * to_next, n_left_from, n_left_to_next; - vlib_node_runtime_t * error_node = vlib_node_get_runtime (vm, ip4_input_node.index); + u32 *from, *to_next, n_left_from, n_left_to_next; + vlib_node_runtime_t *error_node = + vlib_node_get_runtime (vm, ip4_input_node.index); from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; @@ -1444,27 +1468,27 @@ ip4_local (vlib_main_t * vm, vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); while (n_left_from >= 4 && n_left_to_next >= 2) - { - vlib_buffer_t * p0, * p1; - ip4_header_t * ip0, * ip1; - udp_header_t * udp0, * udp1; - ip4_fib_mtrie_t * mtrie0, * mtrie1; - ip4_fib_mtrie_leaf_t leaf0, leaf1; - const dpo_id_t *dpo0, *dpo1; - const load_balance_t *lb0, *lb1; - u32 pi0, ip_len0, udp_len0, flags0, next0, fib_index0, lbi0; - u32 pi1, ip_len1, udp_len1, flags1, next1, fib_index1, lbi1; - i32 len_diff0, len_diff1; - u8 error0, is_udp0, is_tcp_udp0, good_tcp_udp0, proto0; - u8 error1, is_udp1, is_tcp_udp1, good_tcp_udp1, proto1; - u8 enqueue_code; - - pi0 = to_next[0] = from[0]; - pi1 = to_next[1] = from[1]; - from += 2; - n_left_from -= 2; - to_next += 2; - n_left_to_next -= 2; + { + vlib_buffer_t *p0, *p1; + ip4_header_t *ip0, *ip1; + udp_header_t *udp0, *udp1; + ip4_fib_mtrie_t *mtrie0, *mtrie1; + ip4_fib_mtrie_leaf_t leaf0, leaf1; + const dpo_id_t *dpo0, *dpo1; + const load_balance_t *lb0, *lb1; + u32 pi0, ip_len0, udp_len0, flags0, next0, fib_index0, lbi0; + u32 pi1, ip_len1, udp_len1, flags1, next1, fib_index1, lbi1; + i32 len_diff0, len_diff1; + u8 error0, is_udp0, is_tcp_udp0, good_tcp_udp0, proto0; + u8 error1, is_udp1, is_tcp_udp1, good_tcp_udp1, proto1; + u8 enqueue_code; + + pi0 = to_next[0] = from[0]; + pi1 = to_next[1] = from[1]; + from += 2; + n_left_from -= 2; + to_next += 2; + n_left_to_next -= 2; p0 = vlib_get_buffer (vm, pi0); p1 = vlib_get_buffer (vm, pi1); @@ -1472,26 +1496,28 @@ ip4_local (vlib_main_t * vm, ip0 = vlib_buffer_get_current (p0); ip1 = vlib_buffer_get_current (p1); - vnet_buffer (p0)->ip.start_of_ip_header = p0->current_data; - vnet_buffer (p1)->ip.start_of_ip_header = p1->current_data; + vnet_buffer (p0)->ip.start_of_ip_header = p0->current_data; + vnet_buffer (p1)->ip.start_of_ip_header = p1->current_data; - fib_index0 = vec_elt (im->fib_index_by_sw_if_index, - vnet_buffer (p0)->sw_if_index[VLIB_RX]); - fib_index1 = vec_elt (im->fib_index_by_sw_if_index, - vnet_buffer(p1)->sw_if_index[VLIB_RX]); + fib_index0 = vec_elt (im->fib_index_by_sw_if_index, + vnet_buffer (p0)->sw_if_index[VLIB_RX]); + fib_index1 = vec_elt (im->fib_index_by_sw_if_index, + vnet_buffer (p1)->sw_if_index[VLIB_RX]); mtrie0 = &ip4_fib_get (fib_index0)->mtrie; mtrie1 = &ip4_fib_get (fib_index1)->mtrie; leaf0 = leaf1 = IP4_FIB_MTRIE_LEAF_ROOT; - leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 0); - leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, &ip1->src_address, 0); + leaf0 = + ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 0); + leaf1 = + ip4_fib_mtrie_lookup_step (mtrie1, leaf1, &ip1->src_address, 0); /* Treat IP frag packets as "experimental" protocol for now until support of IP frag reassembly is implemented */ - proto0 = ip4_is_fragment(ip0) ? 0xfe : ip0->protocol; - proto1 = ip4_is_fragment(ip1) ? 0xfe : ip1->protocol; + proto0 = ip4_is_fragment (ip0) ? 0xfe : ip0->protocol; + proto1 = ip4_is_fragment (ip1) ? 0xfe : ip1->protocol; is_udp0 = proto0 == IP_PROTOCOL_UDP; is_udp1 = proto1 == IP_PROTOCOL_UDP; is_tcp_udp0 = is_udp0 || proto0 == IP_PROTOCOL_TCP; @@ -1510,8 +1536,10 @@ ip4_local (vlib_main_t * vm, good_tcp_udp0 |= is_udp0 && udp0->checksum == 0; good_tcp_udp1 |= is_udp1 && udp1->checksum == 0; - leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 1); - leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, &ip1->src_address, 1); + leaf0 = + ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 1); + leaf1 = + ip4_fib_mtrie_lookup_step (mtrie1, leaf1, &ip1->src_address, 1); /* Verify UDP length. */ ip_len0 = clib_net_to_host_u16 (ip0->length); @@ -1525,13 +1553,13 @@ ip4_local (vlib_main_t * vm, len_diff0 = is_udp0 ? len_diff0 : 0; len_diff1 = is_udp1 ? len_diff1 : 0; - if (PREDICT_FALSE (! (is_tcp_udp0 & is_tcp_udp1 - & good_tcp_udp0 & good_tcp_udp1))) + if (PREDICT_FALSE (!(is_tcp_udp0 & is_tcp_udp1 + & good_tcp_udp0 & good_tcp_udp1))) { if (is_tcp_udp0) { if (is_tcp_udp0 - && ! (flags0 & IP_BUFFER_L4_CHECKSUM_COMPUTED)) + && !(flags0 & IP_BUFFER_L4_CHECKSUM_COMPUTED)) flags0 = ip4_tcp_udp_validate_checksum (vm, p0); good_tcp_udp0 = (flags0 & IP_BUFFER_L4_CHECKSUM_CORRECT) != 0; @@ -1540,7 +1568,7 @@ ip4_local (vlib_main_t * vm, if (is_tcp_udp1) { if (is_tcp_udp1 - && ! (flags1 & IP_BUFFER_L4_CHECKSUM_COMPUTED)) + && !(flags1 & IP_BUFFER_L4_CHECKSUM_COMPUTED)) flags1 = ip4_tcp_udp_validate_checksum (vm, p1); good_tcp_udp1 = (flags1 & IP_BUFFER_L4_CHECKSUM_CORRECT) != 0; @@ -1551,8 +1579,10 @@ ip4_local (vlib_main_t * vm, good_tcp_udp0 &= len_diff0 >= 0; good_tcp_udp1 &= len_diff1 >= 0; - leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 2); - leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, &ip1->src_address, 2); + leaf0 = + ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 2); + leaf1 = + ip4_fib_mtrie_lookup_step (mtrie1, leaf1, &ip1->src_address, 2); error0 = error1 = IP4_ERROR_UNKNOWN_PROTOCOL; @@ -1560,68 +1590,72 @@ ip4_local (vlib_main_t * vm, error1 = len_diff1 < 0 ? IP4_ERROR_UDP_LENGTH : error1; ASSERT (IP4_ERROR_TCP_CHECKSUM + 1 == IP4_ERROR_UDP_CHECKSUM); - error0 = (is_tcp_udp0 && ! good_tcp_udp0 - ? IP4_ERROR_TCP_CHECKSUM + is_udp0 - : error0); - error1 = (is_tcp_udp1 && ! good_tcp_udp1 - ? IP4_ERROR_TCP_CHECKSUM + is_udp1 - : error1); - - leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 3); - leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, &ip1->src_address, 3); - leaf0 = (leaf0 == IP4_FIB_MTRIE_LEAF_EMPTY ? mtrie0->default_leaf : leaf0); - leaf1 = (leaf1 == IP4_FIB_MTRIE_LEAF_EMPTY ? mtrie1->default_leaf : leaf1); - - vnet_buffer (p0)->ip.adj_index[VLIB_RX] = lbi0 = ip4_fib_mtrie_leaf_get_adj_index (leaf0); - vnet_buffer (p0)->ip.adj_index[VLIB_TX] = lbi0; + error0 = (is_tcp_udp0 && !good_tcp_udp0 + ? IP4_ERROR_TCP_CHECKSUM + is_udp0 : error0); + error1 = (is_tcp_udp1 && !good_tcp_udp1 + ? IP4_ERROR_TCP_CHECKSUM + is_udp1 : error1); + + leaf0 = + ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 3); + leaf1 = + ip4_fib_mtrie_lookup_step (mtrie1, leaf1, &ip1->src_address, 3); + leaf0 = + (leaf0 == + IP4_FIB_MTRIE_LEAF_EMPTY ? mtrie0->default_leaf : leaf0); + leaf1 = + (leaf1 == + IP4_FIB_MTRIE_LEAF_EMPTY ? mtrie1->default_leaf : leaf1); + + vnet_buffer (p0)->ip.adj_index[VLIB_RX] = lbi0 = + ip4_fib_mtrie_leaf_get_adj_index (leaf0); + vnet_buffer (p0)->ip.adj_index[VLIB_TX] = lbi0; + + vnet_buffer (p1)->ip.adj_index[VLIB_RX] = lbi1 = + ip4_fib_mtrie_leaf_get_adj_index (leaf1); + vnet_buffer (p1)->ip.adj_index[VLIB_TX] = lbi1; - vnet_buffer (p1)->ip.adj_index[VLIB_RX] = lbi1 = ip4_fib_mtrie_leaf_get_adj_index (leaf1); - vnet_buffer (p1)->ip.adj_index[VLIB_TX] = lbi1; - - lb0 = load_balance_get(lbi0); - lb1 = load_balance_get(lbi1); - dpo0 = load_balance_get_bucket_i(lb0, 0); - dpo1 = load_balance_get_bucket_i(lb1, 0); + lb0 = load_balance_get (lbi0); + lb1 = load_balance_get (lbi1); + dpo0 = load_balance_get_bucket_i (lb0, 0); + dpo1 = load_balance_get_bucket_i (lb1, 0); /* - * Must have a route to source otherwise we drop the packet. - * ip4 broadcasts are accepted, e.g. to make dhcp client work + * Must have a route to source otherwise we drop the packet. + * ip4 broadcasts are accepted, e.g. to make dhcp client work * * The checks are: * - the source is a recieve => it's from us => bogus, do this * first since it sets a different error code. * - uRPF check for any route to source - accept if passes. * - allow packets destined to the broadcast address from unknown sources - */ - error0 = ((error0 == IP4_ERROR_UNKNOWN_PROTOCOL && + */ + error0 = ((error0 == IP4_ERROR_UNKNOWN_PROTOCOL && dpo0->dpoi_type == DPO_RECEIVE) ? - IP4_ERROR_SPOOFED_LOCAL_PACKETS : - error0); + IP4_ERROR_SPOOFED_LOCAL_PACKETS : error0); error0 = ((error0 == IP4_ERROR_UNKNOWN_PROTOCOL && - !fib_urpf_check_size(lb0->lb_urpf) && + !fib_urpf_check_size (lb0->lb_urpf) && ip0->dst_address.as_u32 != 0xFFFFFFFF) - ? IP4_ERROR_SRC_LOOKUP_MISS - : error0); - error1 = ((error1 == IP4_ERROR_UNKNOWN_PROTOCOL && + ? IP4_ERROR_SRC_LOOKUP_MISS : error0); + error1 = ((error1 == IP4_ERROR_UNKNOWN_PROTOCOL && dpo1->dpoi_type == DPO_RECEIVE) ? - IP4_ERROR_SPOOFED_LOCAL_PACKETS : - error1); + IP4_ERROR_SPOOFED_LOCAL_PACKETS : error1); error1 = ((error1 == IP4_ERROR_UNKNOWN_PROTOCOL && - !fib_urpf_check_size(lb1->lb_urpf) && + !fib_urpf_check_size (lb1->lb_urpf) && ip1->dst_address.as_u32 != 0xFFFFFFFF) - ? IP4_ERROR_SRC_LOOKUP_MISS - : error1); + ? IP4_ERROR_SRC_LOOKUP_MISS : error1); next0 = lm->local_next_by_ip_protocol[proto0]; next1 = lm->local_next_by_ip_protocol[proto1]; - next0 = error0 != IP4_ERROR_UNKNOWN_PROTOCOL ? IP_LOCAL_NEXT_DROP : next0; - next1 = error1 != IP4_ERROR_UNKNOWN_PROTOCOL ? IP_LOCAL_NEXT_DROP : next1; + next0 = + error0 != IP4_ERROR_UNKNOWN_PROTOCOL ? IP_LOCAL_NEXT_DROP : next0; + next1 = + error1 != IP4_ERROR_UNKNOWN_PROTOCOL ? IP_LOCAL_NEXT_DROP : next1; p0->error = error0 ? error_node->errors[error0] : 0; p1->error = error1 ? error_node->errors[error1] : 0; - enqueue_code = (next0 != next_index) + 2*(next1 != next_index); + enqueue_code = (next0 != next_index) + 2 * (next1 != next_index); if (PREDICT_FALSE (enqueue_code != 0)) { @@ -1650,9 +1684,11 @@ ip4_local (vlib_main_t * vm, vlib_set_next_frame_buffer (vm, node, next1, pi1); if (next0 == next1) { - vlib_put_next_frame (vm, node, next_index, n_left_to_next); + vlib_put_next_frame (vm, node, next_index, + n_left_to_next); next_index = next1; - vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + vlib_get_next_frame (vm, node, next_index, to_next, + n_left_to_next); } break; } @@ -1661,15 +1697,15 @@ ip4_local (vlib_main_t * vm, while (n_left_from > 0 && n_left_to_next > 0) { - vlib_buffer_t * p0; - ip4_header_t * ip0; - udp_header_t * udp0; - ip4_fib_mtrie_t * mtrie0; + vlib_buffer_t *p0; + ip4_header_t *ip0; + udp_header_t *udp0; + ip4_fib_mtrie_t *mtrie0; ip4_fib_mtrie_leaf_t leaf0; u32 pi0, next0, ip_len0, udp_len0, flags0, fib_index0, lbi0; i32 len_diff0; u8 error0, is_udp0, is_tcp_udp0, good_tcp_udp0, proto0; - load_balance_t *lb0; + load_balance_t *lb0; const dpo_id_t *dpo0; pi0 = to_next[0] = from[0]; @@ -1682,20 +1718,21 @@ ip4_local (vlib_main_t * vm, ip0 = vlib_buffer_get_current (p0); - vnet_buffer (p0)->ip.start_of_ip_header = p0->current_data; + vnet_buffer (p0)->ip.start_of_ip_header = p0->current_data; fib_index0 = vec_elt (im->fib_index_by_sw_if_index, - vnet_buffer(p0)->sw_if_index[VLIB_RX]); + vnet_buffer (p0)->sw_if_index[VLIB_RX]); mtrie0 = &ip4_fib_get (fib_index0)->mtrie; leaf0 = IP4_FIB_MTRIE_LEAF_ROOT; - leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 0); + leaf0 = + ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 0); /* Treat IP frag packets as "experimental" protocol for now until support of IP frag reassembly is implemented */ - proto0 = ip4_is_fragment(ip0) ? 0xfe : ip0->protocol; + proto0 = ip4_is_fragment (ip0) ? 0xfe : ip0->protocol; is_udp0 = proto0 == IP_PROTOCOL_UDP; is_tcp_udp0 = is_udp0 || proto0 == IP_PROTOCOL_TCP; @@ -1708,7 +1745,8 @@ ip4_local (vlib_main_t * vm, /* Don't verify UDP checksum for packets with explicit zero checksum. */ good_tcp_udp0 |= is_udp0 && udp0->checksum == 0; - leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 1); + leaf0 = + ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 1); /* Verify UDP length. */ ip_len0 = clib_net_to_host_u16 (ip0->length); @@ -1718,12 +1756,12 @@ ip4_local (vlib_main_t * vm, len_diff0 = is_udp0 ? len_diff0 : 0; - if (PREDICT_FALSE (! (is_tcp_udp0 & good_tcp_udp0))) + if (PREDICT_FALSE (!(is_tcp_udp0 & good_tcp_udp0))) { if (is_tcp_udp0) { if (is_tcp_udp0 - && ! (flags0 & IP_BUFFER_L4_CHECKSUM_COMPUTED)) + && !(flags0 & IP_BUFFER_L4_CHECKSUM_COMPUTED)) flags0 = ip4_tcp_udp_validate_checksum (vm, p0); good_tcp_udp0 = (flags0 & IP_BUFFER_L4_CHECKSUM_CORRECT) != 0; @@ -1733,44 +1771,46 @@ ip4_local (vlib_main_t * vm, good_tcp_udp0 &= len_diff0 >= 0; - leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 2); + leaf0 = + ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 2); error0 = IP4_ERROR_UNKNOWN_PROTOCOL; error0 = len_diff0 < 0 ? IP4_ERROR_UDP_LENGTH : error0; ASSERT (IP4_ERROR_TCP_CHECKSUM + 1 == IP4_ERROR_UDP_CHECKSUM); - error0 = (is_tcp_udp0 && ! good_tcp_udp0 - ? IP4_ERROR_TCP_CHECKSUM + is_udp0 - : error0); + error0 = (is_tcp_udp0 && !good_tcp_udp0 + ? IP4_ERROR_TCP_CHECKSUM + is_udp0 : error0); - leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 3); - leaf0 = (leaf0 == IP4_FIB_MTRIE_LEAF_EMPTY ? mtrie0->default_leaf : leaf0); + leaf0 = + ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 3); + leaf0 = + (leaf0 == + IP4_FIB_MTRIE_LEAF_EMPTY ? mtrie0->default_leaf : leaf0); lbi0 = ip4_fib_mtrie_leaf_get_adj_index (leaf0); - vnet_buffer (p0)->ip.adj_index[VLIB_TX] = lbi0; + vnet_buffer (p0)->ip.adj_index[VLIB_TX] = lbi0; - lb0 = load_balance_get(lbi0); - dpo0 = load_balance_get_bucket_i(lb0, 0); + lb0 = load_balance_get (lbi0); + dpo0 = load_balance_get_bucket_i (lb0, 0); vnet_buffer (p0)->ip.adj_index[VLIB_TX] = - vnet_buffer (p0)->ip.adj_index[VLIB_RX] = lbi0; + vnet_buffer (p0)->ip.adj_index[VLIB_RX] = lbi0; - error0 = ((error0 == IP4_ERROR_UNKNOWN_PROTOCOL && + error0 = ((error0 == IP4_ERROR_UNKNOWN_PROTOCOL && dpo0->dpoi_type == DPO_RECEIVE) ? - IP4_ERROR_SPOOFED_LOCAL_PACKETS : - error0); + IP4_ERROR_SPOOFED_LOCAL_PACKETS : error0); error0 = ((error0 == IP4_ERROR_UNKNOWN_PROTOCOL && - !fib_urpf_check_size(lb0->lb_urpf) && + !fib_urpf_check_size (lb0->lb_urpf) && ip0->dst_address.as_u32 != 0xFFFFFFFF) - ? IP4_ERROR_SRC_LOOKUP_MISS - : error0); + ? IP4_ERROR_SRC_LOOKUP_MISS : error0); next0 = lm->local_next_by_ip_protocol[proto0]; - next0 = error0 != IP4_ERROR_UNKNOWN_PROTOCOL ? IP_LOCAL_NEXT_DROP : next0; + next0 = + error0 != IP4_ERROR_UNKNOWN_PROTOCOL ? IP_LOCAL_NEXT_DROP : next0; - p0->error = error0? error_node->errors[error0] : 0; + p0->error = error0 ? error_node->errors[error0] : 0; if (PREDICT_FALSE (next0 != next_index)) { @@ -1778,7 +1818,8 @@ ip4_local (vlib_main_t * vm, vlib_put_next_frame (vm, node, next_index, n_left_to_next); next_index = next0; - vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + vlib_get_next_frame (vm, node, next_index, to_next, + n_left_to_next); to_next[0] = pi0; to_next += 1; n_left_to_next -= 1; @@ -1791,48 +1832,45 @@ ip4_local (vlib_main_t * vm, return frame->n_vectors; } -VLIB_REGISTER_NODE (ip4_local_node,static) = { - .function = ip4_local, - .name = "ip4-local", - .vector_size = sizeof (u32), - - .format_trace = format_ip4_forward_next_trace, - - .n_next_nodes = IP_LOCAL_N_NEXT, - .next_nodes = { - [IP_LOCAL_NEXT_DROP] = "error-drop", - [IP_LOCAL_NEXT_PUNT] = "error-punt", - [IP_LOCAL_NEXT_UDP_LOOKUP] = "ip4-udp-lookup", - [IP_LOCAL_NEXT_ICMP] = "ip4-icmp-input", - }, -}; +VLIB_REGISTER_NODE (ip4_local_node, static) = +{ + .function = ip4_local,.name = "ip4-local",.vector_size = + sizeof (u32),.format_trace = format_ip4_forward_next_trace,.n_next_nodes = + IP_LOCAL_N_NEXT,.next_nodes = + { + [IP_LOCAL_NEXT_DROP] = "error-drop", + [IP_LOCAL_NEXT_PUNT] = "error-punt", + [IP_LOCAL_NEXT_UDP_LOOKUP] = "ip4-udp-lookup", + [IP_LOCAL_NEXT_ICMP] = "ip4-icmp-input",} +,}; -VLIB_NODE_FUNCTION_MULTIARCH (ip4_local_node, ip4_local) +VLIB_NODE_FUNCTION_MULTIARCH (ip4_local_node, ip4_local); -void ip4_register_protocol (u32 protocol, u32 node_index) +void +ip4_register_protocol (u32 protocol, u32 node_index) { - vlib_main_t * vm = vlib_get_main(); - ip4_main_t * im = &ip4_main; - ip_lookup_main_t * lm = &im->lookup_main; + vlib_main_t *vm = vlib_get_main (); + ip4_main_t *im = &ip4_main; + ip_lookup_main_t *lm = &im->lookup_main; ASSERT (protocol < ARRAY_LEN (lm->local_next_by_ip_protocol)); - lm->local_next_by_ip_protocol[protocol] = vlib_node_add_next (vm, ip4_local_node.index, node_index); + lm->local_next_by_ip_protocol[protocol] = + vlib_node_add_next (vm, ip4_local_node.index, node_index); } static clib_error_t * show_ip_local_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, vlib_cli_command_t * cmd) { - ip4_main_t * im = &ip4_main; - ip_lookup_main_t * lm = &im->lookup_main; + ip4_main_t *im = &ip4_main; + ip_lookup_main_t *lm = &im->lookup_main; int i; vlib_cli_output (vm, "Protocols handled by ip4_local"); - for (i = 0; i < ARRAY_LEN(lm->local_next_by_ip_protocol); i++) + for (i = 0; i < ARRAY_LEN (lm->local_next_by_ip_protocol); i++) { if (lm->local_next_by_ip_protocol[i] != IP_LOCAL_NEXT_PUNT) - vlib_cli_output (vm, "%d", i); + vlib_cli_output (vm, "%d", i); } return 0; } @@ -1852,7 +1890,8 @@ show_ip_local_command_fn (vlib_main_t * vm, * @cliexend ?*/ /* *INDENT-OFF* */ -VLIB_CLI_COMMAND (show_ip_local, static) = { +VLIB_CLI_COMMAND (show_ip_local, static) = +{ .path = "show ip local", .function = show_ip_local_command_fn, .short_help = "show ip local", @@ -1862,13 +1901,12 @@ VLIB_CLI_COMMAND (show_ip_local, static) = { always_inline uword ip4_arp_inline (vlib_main_t * vm, vlib_node_runtime_t * node, - vlib_frame_t * frame, - int is_glean) + vlib_frame_t * frame, int is_glean) { - vnet_main_t * vnm = vnet_get_main(); - ip4_main_t * im = &ip4_main; - ip_lookup_main_t * lm = &im->lookup_main; - u32 * from, * to_next_drop; + vnet_main_t *vnm = vnet_get_main (); + ip4_main_t *im = &ip4_main; + ip_lookup_main_t *lm = &im->lookup_main; + u32 *from, *to_next_drop; uword n_left_from, n_left_to_next_drop, next_index; static f64 time_last_seed_change = -1e100; static u32 hash_seeds[3]; @@ -1882,8 +1920,8 @@ ip4_arp_inline (vlib_main_t * vm, if (time_now - time_last_seed_change > 1e-3) { uword i; - u32 * r = clib_random_buffer_get_data (&vm->random_buffer, - sizeof (hash_seeds)); + u32 *r = clib_random_buffer_get_data (&vm->random_buffer, + sizeof (hash_seeds)); for (i = 0; i < ARRAY_LEN (hash_seeds); i++) hash_seeds[i] = r[i]; @@ -1898,7 +1936,7 @@ ip4_arp_inline (vlib_main_t * vm, n_left_from = frame->n_vectors; next_index = node->cached_next_index; if (next_index == IP4_ARP_NEXT_DROP) - next_index = IP4_ARP_N_NEXT; /* point to first interface */ + next_index = IP4_ARP_N_NEXT; /* point to first interface */ while (n_left_from > 0) { @@ -1908,9 +1946,9 @@ ip4_arp_inline (vlib_main_t * vm, while (n_left_from > 0 && n_left_to_next_drop > 0) { u32 pi0, adj_index0, a0, b0, c0, m0, sw_if_index0, drop0; - ip_adjacency_t * adj0; - vlib_buffer_t * p0; - ip4_header_t * ip0; + ip_adjacency_t *adj0; + vlib_buffer_t *p0; + ip4_header_t *ip0; uword bm0; pi0 = from[0]; @@ -1928,18 +1966,18 @@ ip4_arp_inline (vlib_main_t * vm, sw_if_index0 = adj0->rewrite_header.sw_if_index; vnet_buffer (p0)->sw_if_index[VLIB_TX] = sw_if_index0; - if (is_glean) - { + if (is_glean) + { /* * this is the Glean case, so we are ARPing for the * packet's destination */ - a0 ^= ip0->dst_address.data_u32; - } - else - { - a0 ^= adj0->sub_type.nbr.next_hop.ip4.data_u32; - } + a0 ^= ip0->dst_address.data_u32; + } + else + { + a0 ^= adj0->sub_type.nbr.next_hop.ip4.data_u32; + } b0 ^= sw_if_index0; hash_v3_finalize32 (a0, b0, c0); @@ -1960,7 +1998,9 @@ ip4_arp_inline (vlib_main_t * vm, to_next_drop += 1; n_left_to_next_drop -= 1; - p0->error = node->errors[drop0 ? IP4_ARP_ERROR_DROP : IP4_ARP_ERROR_REQUEST_SENT]; + p0->error = + node->errors[drop0 ? IP4_ARP_ERROR_DROP : + IP4_ARP_ERROR_REQUEST_SENT]; /* * the adj has been updated to a rewrite but the node the DPO that got @@ -1972,69 +2012,80 @@ ip4_arp_inline (vlib_main_t * vm, if (drop0) continue; - /* - * Can happen if the control-plane is programming tables - * with traffic flowing; at least that's today's lame excuse. - */ + /* + * Can happen if the control-plane is programming tables + * with traffic flowing; at least that's today's lame excuse. + */ if ((is_glean && adj0->lookup_next_index != IP_LOOKUP_NEXT_GLEAN) || (!is_glean && adj0->lookup_next_index != IP_LOOKUP_NEXT_ARP)) - { - p0->error = node->errors[IP4_ARP_ERROR_NON_ARP_ADJ]; - } - else - /* Send ARP request. */ - { - u32 bi0 = 0; - vlib_buffer_t * b0; - ethernet_arp_header_t * h0; - vnet_hw_interface_t * hw_if0; - - h0 = vlib_packet_template_get_packet (vm, &im->ip4_arp_request_packet_template, &bi0); + { + p0->error = node->errors[IP4_ARP_ERROR_NON_ARP_ADJ]; + } + else + /* Send ARP request. */ + { + u32 bi0 = 0; + vlib_buffer_t *b0; + ethernet_arp_header_t *h0; + vnet_hw_interface_t *hw_if0; - /* Add rewrite/encap string for ARP packet. */ - vnet_rewrite_one_header (adj0[0], h0, sizeof (ethernet_header_t)); + h0 = + vlib_packet_template_get_packet (vm, + &im->ip4_arp_request_packet_template, + &bi0); - hw_if0 = vnet_get_sup_hw_interface (vnm, sw_if_index0); + /* Add rewrite/encap string for ARP packet. */ + vnet_rewrite_one_header (adj0[0], h0, + sizeof (ethernet_header_t)); - /* Src ethernet address in ARP header. */ - clib_memcpy (h0->ip4_over_ethernet[0].ethernet, hw_if0->hw_address, - sizeof (h0->ip4_over_ethernet[0].ethernet)); + hw_if0 = vnet_get_sup_hw_interface (vnm, sw_if_index0); - if (is_glean) - { - /* The interface's source address is stashed in the Glean Adj */ - h0->ip4_over_ethernet[0].ip4 = adj0->sub_type.glean.receive_addr.ip4; + /* Src ethernet address in ARP header. */ + clib_memcpy (h0->ip4_over_ethernet[0].ethernet, + hw_if0->hw_address, + sizeof (h0->ip4_over_ethernet[0].ethernet)); - /* Copy in destination address we are requesting. This is the - * glean case, so it's the packet's destination.*/ - h0->ip4_over_ethernet[1].ip4.data_u32 = ip0->dst_address.data_u32; - } - else - { - /* Src IP address in ARP header. */ - if (ip4_src_address_for_packet(lm, sw_if_index0, - &h0->ip4_over_ethernet[0].ip4)) + if (is_glean) { - /* No source address available */ - p0->error = node->errors[IP4_ARP_ERROR_NO_SOURCE_ADDRESS]; - vlib_buffer_free(vm, &bi0, 1); - continue; + /* The interface's source address is stashed in the Glean Adj */ + h0->ip4_over_ethernet[0].ip4 = + adj0->sub_type.glean.receive_addr.ip4; + + /* Copy in destination address we are requesting. This is the + * glean case, so it's the packet's destination.*/ + h0->ip4_over_ethernet[1].ip4.data_u32 = + ip0->dst_address.data_u32; } + else + { + /* Src IP address in ARP header. */ + if (ip4_src_address_for_packet (lm, sw_if_index0, + &h0-> + ip4_over_ethernet[0].ip4)) + { + /* No source address available */ + p0->error = + node->errors[IP4_ARP_ERROR_NO_SOURCE_ADDRESS]; + vlib_buffer_free (vm, &bi0, 1); + continue; + } - /* Copy in destination address we are requesting from the - incomplete adj */ - h0->ip4_over_ethernet[1].ip4.data_u32 = + /* Copy in destination address we are requesting from the + incomplete adj */ + h0->ip4_over_ethernet[1].ip4.data_u32 = adj0->sub_type.nbr.next_hop.ip4.as_u32; - } + } - vlib_buffer_copy_trace_flag (vm, p0, bi0); - b0 = vlib_get_buffer (vm, bi0); - vnet_buffer (b0)->sw_if_index[VLIB_TX] = sw_if_index0; + vlib_buffer_copy_trace_flag (vm, p0, bi0); + b0 = vlib_get_buffer (vm, bi0); + vnet_buffer (b0)->sw_if_index[VLIB_TX] = sw_if_index0; - vlib_buffer_advance (b0, -adj0->rewrite_header.data_bytes); + vlib_buffer_advance (b0, -adj0->rewrite_header.data_bytes); - vlib_set_next_frame_buffer (vm, node, adj0->rewrite_header.next_index, bi0); - } + vlib_set_next_frame_buffer (vm, node, + adj0->rewrite_header.next_index, + bi0); + } } vlib_put_next_frame (vm, node, IP4_ARP_NEXT_DROP, n_left_to_next_drop); @@ -2044,22 +2095,18 @@ ip4_arp_inline (vlib_main_t * vm, } static uword -ip4_arp (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) +ip4_arp (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { - return (ip4_arp_inline(vm, node, frame, 0)); + return (ip4_arp_inline (vm, node, frame, 0)); } static uword -ip4_glean (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) +ip4_glean (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { - return (ip4_arp_inline(vm, node, frame, 1)); + return (ip4_arp_inline (vm, node, frame, 1)); } -static char * ip4_arp_error_strings[] = { +static char *ip4_arp_error_strings[] = { [IP4_ARP_ERROR_DROP] = "address overflow drops", [IP4_ARP_ERROR_REQUEST_SENT] = "ARP requests sent", [IP4_ARP_ERROR_NON_ARP_ADJ] = "ARPs to non-ARP adjacencies", @@ -2068,37 +2115,25 @@ static char * ip4_arp_error_strings[] = { [IP4_ARP_ERROR_NO_SOURCE_ADDRESS] = "no source address for ARP request", }; -VLIB_REGISTER_NODE (ip4_arp_node) = { - .function = ip4_arp, - .name = "ip4-arp", - .vector_size = sizeof (u32), - - .format_trace = format_ip4_forward_next_trace, - - .n_errors = ARRAY_LEN (ip4_arp_error_strings), - .error_strings = ip4_arp_error_strings, - - .n_next_nodes = IP4_ARP_N_NEXT, - .next_nodes = { - [IP4_ARP_NEXT_DROP] = "error-drop", - }, -}; - -VLIB_REGISTER_NODE (ip4_glean_node) = { - .function = ip4_glean, - .name = "ip4-glean", - .vector_size = sizeof (u32), - - .format_trace = format_ip4_forward_next_trace, - - .n_errors = ARRAY_LEN (ip4_arp_error_strings), - .error_strings = ip4_arp_error_strings, +VLIB_REGISTER_NODE (ip4_arp_node) = +{ + .function = ip4_arp,.name = "ip4-arp",.vector_size = + sizeof (u32),.format_trace = format_ip4_forward_next_trace,.n_errors = + ARRAY_LEN (ip4_arp_error_strings),.error_strings = + ip4_arp_error_strings,.n_next_nodes = IP4_ARP_N_NEXT,.next_nodes = + { + [IP4_ARP_NEXT_DROP] = "error-drop",} +,}; - .n_next_nodes = IP4_ARP_N_NEXT, - .next_nodes = { - [IP4_ARP_NEXT_DROP] = "error-drop", - }, -}; +VLIB_REGISTER_NODE (ip4_glean_node) = +{ + .function = ip4_glean,.name = "ip4-glean",.vector_size = + sizeof (u32),.format_trace = format_ip4_forward_next_trace,.n_errors = + ARRAY_LEN (ip4_arp_error_strings),.error_strings = + ip4_arp_error_strings,.n_next_nodes = IP4_ARP_N_NEXT,.next_nodes = + { + [IP4_ARP_NEXT_DROP] = "error-drop",} +,}; #define foreach_notrace_ip4_arp_error \ _(DROP) \ @@ -2106,37 +2141,37 @@ _(REQUEST_SENT) \ _(REPLICATE_DROP) \ _(REPLICATE_FAIL) -clib_error_t * arp_notrace_init (vlib_main_t * vm) +clib_error_t * +arp_notrace_init (vlib_main_t * vm) { - vlib_node_runtime_t *rt = - vlib_node_get_runtime (vm, ip4_arp_node.index); + vlib_node_runtime_t *rt = vlib_node_get_runtime (vm, ip4_arp_node.index); /* don't trace ARP request packets */ #define _(a) \ vnet_pcap_drop_trace_filter_add_del \ (rt->errors[IP4_ARP_ERROR_##a], \ 1 /* is_add */); - foreach_notrace_ip4_arp_error; + foreach_notrace_ip4_arp_error; #undef _ return 0; } -VLIB_INIT_FUNCTION(arp_notrace_init); +VLIB_INIT_FUNCTION (arp_notrace_init); /* Send an ARP request to see if given destination is reachable on given interface. */ clib_error_t * ip4_probe_neighbor (vlib_main_t * vm, ip4_address_t * dst, u32 sw_if_index) { - vnet_main_t * vnm = vnet_get_main(); - ip4_main_t * im = &ip4_main; - ethernet_arp_header_t * h; - ip4_address_t * src; - ip_interface_address_t * ia; - ip_adjacency_t * adj; - vnet_hw_interface_t * hi; - vnet_sw_interface_t * si; - vlib_buffer_t * b; + vnet_main_t *vnm = vnet_get_main (); + ip4_main_t *im = &ip4_main; + ethernet_arp_header_t *h; + ip4_address_t *src; + ip_interface_address_t *ia; + ip_adjacency_t *adj; + vnet_hw_interface_t *hi; + vnet_sw_interface_t *si; + vlib_buffer_t *b; u32 bi = 0; si = vnet_get_sw_interface (vnm, sw_if_index); @@ -2144,42 +2179,47 @@ ip4_probe_neighbor (vlib_main_t * vm, ip4_address_t * dst, u32 sw_if_index) if (!(si->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)) { return clib_error_return (0, "%U: interface %U down", - format_ip4_address, dst, - format_vnet_sw_if_index_name, vnm, - sw_if_index); + format_ip4_address, dst, + format_vnet_sw_if_index_name, vnm, + sw_if_index); } - src = ip4_interface_address_matching_destination (im, dst, sw_if_index, &ia); - if (! src) + src = + ip4_interface_address_matching_destination (im, dst, sw_if_index, &ia); + if (!src) { vnm->api_errno = VNET_API_ERROR_NO_MATCHING_INTERFACE; return clib_error_return - (0, "no matching interface address for destination %U (interface %U)", - format_ip4_address, dst, - format_vnet_sw_if_index_name, vnm, sw_if_index); + (0, "no matching interface address for destination %U (interface %U)", + format_ip4_address, dst, + format_vnet_sw_if_index_name, vnm, sw_if_index); } adj = ip_get_adjacency (&im->lookup_main, ia->neighbor_probe_adj_index); - h = vlib_packet_template_get_packet (vm, &im->ip4_arp_request_packet_template, &bi); + h = + vlib_packet_template_get_packet (vm, &im->ip4_arp_request_packet_template, + &bi); hi = vnet_get_sup_hw_interface (vnm, sw_if_index); - clib_memcpy (h->ip4_over_ethernet[0].ethernet, hi->hw_address, sizeof (h->ip4_over_ethernet[0].ethernet)); + clib_memcpy (h->ip4_over_ethernet[0].ethernet, hi->hw_address, + sizeof (h->ip4_over_ethernet[0].ethernet)); h->ip4_over_ethernet[0].ip4 = src[0]; h->ip4_over_ethernet[1].ip4 = dst[0]; b = vlib_get_buffer (vm, bi); - vnet_buffer (b)->sw_if_index[VLIB_RX] = vnet_buffer (b)->sw_if_index[VLIB_TX] = sw_if_index; + vnet_buffer (b)->sw_if_index[VLIB_RX] = + vnet_buffer (b)->sw_if_index[VLIB_TX] = sw_if_index; /* Add encapsulation string for software interface (e.g. ethernet header). */ vnet_rewrite_one_header (adj[0], h, sizeof (ethernet_header_t)); vlib_buffer_advance (b, -adj->rewrite_header.data_bytes); { - vlib_frame_t * f = vlib_get_frame_to_node (vm, hi->output_node_index); - u32 * to_next = vlib_frame_vector_args (f); + vlib_frame_t *f = vlib_get_frame_to_node (vm, hi->output_node_index); + u32 *to_next = vlib_frame_vector_args (f); to_next[0] = bi; f->n_vectors = 1; vlib_put_frame_to_node (vm, hi->output_node_index, f); @@ -2188,7 +2228,8 @@ ip4_probe_neighbor (vlib_main_t * vm, ip4_address_t * dst, u32 sw_if_index) return /* no error */ 0; } -typedef enum { +typedef enum +{ IP4_REWRITE_NEXT_DROP, IP4_REWRITE_NEXT_ICMP_ERROR, } ip4_rewrite_next_t; @@ -2196,17 +2237,17 @@ typedef enum { always_inline uword ip4_rewrite_inline (vlib_main_t * vm, vlib_node_runtime_t * node, - vlib_frame_t * frame, - int is_midchain) + vlib_frame_t * frame, int is_midchain) { - ip_lookup_main_t * lm = &ip4_main.lookup_main; - u32 * from = vlib_frame_vector_args (frame); - u32 n_left_from, n_left_to_next, * to_next, next_index; - vlib_node_runtime_t * error_node = vlib_node_get_runtime (vm, ip4_input_node.index); + ip_lookup_main_t *lm = &ip4_main.lookup_main; + u32 *from = vlib_frame_vector_args (frame); + u32 n_left_from, n_left_to_next, *to_next, next_index; + vlib_node_runtime_t *error_node = + vlib_node_get_runtime (vm, ip4_input_node.index); n_left_from = frame->n_vectors; next_index = node->cached_next_index; - u32 cpu_index = os_get_cpu_number(); + u32 cpu_index = os_get_cpu_number (); while (n_left_from > 0) { @@ -2214,16 +2255,16 @@ ip4_rewrite_inline (vlib_main_t * vm, while (n_left_from >= 4 && n_left_to_next >= 2) { - ip_adjacency_t * adj0, * adj1; - vlib_buffer_t * p0, * p1; - ip4_header_t * ip0, * ip1; + ip_adjacency_t *adj0, *adj1; + vlib_buffer_t *p0, *p1; + ip4_header_t *ip0, *ip1; u32 pi0, rw_len0, next0, error0, checksum0, adj_index0; u32 pi1, rw_len1, next1, error1, checksum1, adj_index1; - u32 tx_sw_if_index0, tx_sw_if_index1; + u32 tx_sw_if_index0, tx_sw_if_index1; /* Prefetch next iteration. */ { - vlib_buffer_t * p2, * p3; + vlib_buffer_t *p2, *p3; p2 = vlib_get_buffer (vm, from[2]); p3 = vlib_get_buffer (vm, from[3]); @@ -2249,20 +2290,20 @@ ip4_rewrite_inline (vlib_main_t * vm, adj_index0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX]; adj_index1 = vnet_buffer (p1)->ip.adj_index[VLIB_TX]; - /* We should never rewrite a pkt using the MISS adjacency */ - ASSERT(adj_index0 && adj_index1); + /* We should never rewrite a pkt using the MISS adjacency */ + ASSERT (adj_index0 && adj_index1); ip0 = vlib_buffer_get_current (p0); ip1 = vlib_buffer_get_current (p1); error0 = error1 = IP4_ERROR_NONE; - next0 = next1 = IP4_REWRITE_NEXT_DROP; + next0 = next1 = IP4_REWRITE_NEXT_DROP; /* Decrement TTL & update checksum. Works either endian, so no need for byte swap. */ - if (PREDICT_TRUE(!(p0->flags & VNET_BUFFER_LOCALLY_ORIGINATED))) + if (PREDICT_TRUE (!(p0->flags & VNET_BUFFER_LOCALLY_ORIGINATED))) { - i32 ttl0 = ip0->ttl; + i32 ttl0 = ip0->ttl; /* Input node should have reject packets with ttl 0. */ ASSERT (ip0->ttl > 0); @@ -2274,27 +2315,28 @@ ip4_rewrite_inline (vlib_main_t * vm, ttl0 -= 1; ip0->ttl = ttl0; - /* - * If the ttl drops below 1 when forwarding, generate - * an ICMP response. - */ - if (PREDICT_FALSE(ttl0 <= 0)) - { - error0 = IP4_ERROR_TIME_EXPIRED; - vnet_buffer (p0)->sw_if_index[VLIB_TX] = (u32)~0; - icmp4_error_set_vnet_buffer(p0, ICMP4_time_exceeded, - ICMP4_time_exceeded_ttl_exceeded_in_transit, 0); - next0 = IP4_REWRITE_NEXT_ICMP_ERROR; - } + /* + * If the ttl drops below 1 when forwarding, generate + * an ICMP response. + */ + if (PREDICT_FALSE (ttl0 <= 0)) + { + error0 = IP4_ERROR_TIME_EXPIRED; + vnet_buffer (p0)->sw_if_index[VLIB_TX] = (u32) ~ 0; + icmp4_error_set_vnet_buffer (p0, ICMP4_time_exceeded, + ICMP4_time_exceeded_ttl_exceeded_in_transit, + 0); + next0 = IP4_REWRITE_NEXT_ICMP_ERROR; + } /* Verify checksum. */ ASSERT (ip0->checksum == ip4_header_checksum (ip0)); } - else - { - p0->flags &= ~VNET_BUFFER_LOCALLY_ORIGINATED; - } - if (PREDICT_TRUE(!(p1->flags & VNET_BUFFER_LOCALLY_ORIGINATED))) + else + { + p0->flags &= ~VNET_BUFFER_LOCALLY_ORIGINATED; + } + if (PREDICT_TRUE (!(p1->flags & VNET_BUFFER_LOCALLY_ORIGINATED))) { i32 ttl1 = ip1->ttl; @@ -2308,105 +2350,105 @@ ip4_rewrite_inline (vlib_main_t * vm, ttl1 -= 1; ip1->ttl = ttl1; - /* - * If the ttl drops below 1 when forwarding, generate - * an ICMP response. - */ - if (PREDICT_FALSE(ttl1 <= 0)) - { - error1 = IP4_ERROR_TIME_EXPIRED; - vnet_buffer (p1)->sw_if_index[VLIB_TX] = (u32)~0; - icmp4_error_set_vnet_buffer(p1, ICMP4_time_exceeded, - ICMP4_time_exceeded_ttl_exceeded_in_transit, 0); - next1 = IP4_REWRITE_NEXT_ICMP_ERROR; - } + /* + * If the ttl drops below 1 when forwarding, generate + * an ICMP response. + */ + if (PREDICT_FALSE (ttl1 <= 0)) + { + error1 = IP4_ERROR_TIME_EXPIRED; + vnet_buffer (p1)->sw_if_index[VLIB_TX] = (u32) ~ 0; + icmp4_error_set_vnet_buffer (p1, ICMP4_time_exceeded, + ICMP4_time_exceeded_ttl_exceeded_in_transit, + 0); + next1 = IP4_REWRITE_NEXT_ICMP_ERROR; + } /* Verify checksum. */ ASSERT (ip0->checksum == ip4_header_checksum (ip0)); ASSERT (ip1->checksum == ip4_header_checksum (ip1)); } - else - { - p1->flags &= ~VNET_BUFFER_LOCALLY_ORIGINATED; - } + else + { + p1->flags &= ~VNET_BUFFER_LOCALLY_ORIGINATED; + } /* Rewrite packet header and updates lengths. */ adj0 = ip_get_adjacency (lm, adj_index0); adj1 = ip_get_adjacency (lm, adj_index1); - /* Worth pipelining. No guarantee that adj0,1 are hot... */ + /* Worth pipelining. No guarantee that adj0,1 are hot... */ rw_len0 = adj0[0].rewrite_header.data_bytes; rw_len1 = adj1[0].rewrite_header.data_bytes; - vnet_buffer(p0)->ip.save_rewrite_length = rw_len0; - vnet_buffer(p1)->ip.save_rewrite_length = rw_len1; - - /* Check MTU of outgoing interface. */ - error0 = (vlib_buffer_length_in_chain (vm, p0) > adj0[0].rewrite_header.max_l3_packet_bytes - ? IP4_ERROR_MTU_EXCEEDED - : error0); - error1 = (vlib_buffer_length_in_chain (vm, p1) > adj1[0].rewrite_header.max_l3_packet_bytes - ? IP4_ERROR_MTU_EXCEEDED - : error1); - - next0 = (error0 == IP4_ERROR_NONE) - ? adj0[0].rewrite_header.next_index : next0; - - next1 = (error1 == IP4_ERROR_NONE) - ? adj1[0].rewrite_header.next_index : next1; - - /* - * We've already accounted for an ethernet_header_t elsewhere - */ - if (PREDICT_FALSE (rw_len0 > sizeof(ethernet_header_t))) - vlib_increment_combined_counter - (&adjacency_counters, - cpu_index, adj_index0, - /* packet increment */ 0, - /* byte increment */ rw_len0-sizeof(ethernet_header_t)); - - if (PREDICT_FALSE (rw_len1 > sizeof(ethernet_header_t))) - vlib_increment_combined_counter - (&adjacency_counters, - cpu_index, adj_index1, - /* packet increment */ 0, - /* byte increment */ rw_len1-sizeof(ethernet_header_t)); - - /* Don't adjust the buffer for ttl issue; icmp-error node wants - * to see the IP headerr */ - if (PREDICT_TRUE(error0 == IP4_ERROR_NONE)) - { - p0->current_data -= rw_len0; - p0->current_length += rw_len0; - tx_sw_if_index0 = adj0[0].rewrite_header.sw_if_index; - vnet_buffer (p0)->sw_if_index[VLIB_TX] = - tx_sw_if_index0; - - vnet_feature_arc_start(lm->output_feature_arc_index, - tx_sw_if_index0, &next0, p0); - } - if (PREDICT_TRUE(error1 == IP4_ERROR_NONE)) - { - p1->current_data -= rw_len1; - p1->current_length += rw_len1; - - tx_sw_if_index1 = adj1[0].rewrite_header.sw_if_index; - vnet_buffer (p1)->sw_if_index[VLIB_TX] = - tx_sw_if_index1; - - vnet_feature_arc_start(lm->output_feature_arc_index, - tx_sw_if_index1, &next1, p1); - } + vnet_buffer (p0)->ip.save_rewrite_length = rw_len0; + vnet_buffer (p1)->ip.save_rewrite_length = rw_len1; + + /* Check MTU of outgoing interface. */ + error0 = + (vlib_buffer_length_in_chain (vm, p0) > + adj0[0]. + rewrite_header.max_l3_packet_bytes ? IP4_ERROR_MTU_EXCEEDED : + error0); + error1 = + (vlib_buffer_length_in_chain (vm, p1) > + adj1[0]. + rewrite_header.max_l3_packet_bytes ? IP4_ERROR_MTU_EXCEEDED : + error1); + + next0 = (error0 == IP4_ERROR_NONE) + ? adj0[0].rewrite_header.next_index : next0; + + next1 = (error1 == IP4_ERROR_NONE) + ? adj1[0].rewrite_header.next_index : next1; + + /* + * We've already accounted for an ethernet_header_t elsewhere + */ + if (PREDICT_FALSE (rw_len0 > sizeof (ethernet_header_t))) + vlib_increment_combined_counter + (&adjacency_counters, cpu_index, adj_index0, + /* packet increment */ 0, + /* byte increment */ rw_len0 - sizeof (ethernet_header_t)); + + if (PREDICT_FALSE (rw_len1 > sizeof (ethernet_header_t))) + vlib_increment_combined_counter + (&adjacency_counters, cpu_index, adj_index1, + /* packet increment */ 0, + /* byte increment */ rw_len1 - sizeof (ethernet_header_t)); + + /* Don't adjust the buffer for ttl issue; icmp-error node wants + * to see the IP headerr */ + if (PREDICT_TRUE (error0 == IP4_ERROR_NONE)) + { + p0->current_data -= rw_len0; + p0->current_length += rw_len0; + tx_sw_if_index0 = adj0[0].rewrite_header.sw_if_index; + vnet_buffer (p0)->sw_if_index[VLIB_TX] = tx_sw_if_index0; + + vnet_feature_arc_start (lm->output_feature_arc_index, + tx_sw_if_index0, &next0, p0); + } + if (PREDICT_TRUE (error1 == IP4_ERROR_NONE)) + { + p1->current_data -= rw_len1; + p1->current_length += rw_len1; + + tx_sw_if_index1 = adj1[0].rewrite_header.sw_if_index; + vnet_buffer (p1)->sw_if_index[VLIB_TX] = tx_sw_if_index1; + + vnet_feature_arc_start (lm->output_feature_arc_index, + tx_sw_if_index1, &next1, p1); + } /* Guess we are only writing on simple Ethernet header. */ vnet_rewrite_two_headers (adj0[0], adj1[0], - ip0, ip1, - sizeof (ethernet_header_t)); + ip0, ip1, sizeof (ethernet_header_t)); if (is_midchain) - { - adj0->sub_type.midchain.fixup_func(vm, adj0, p0); - adj1->sub_type.midchain.fixup_func(vm, adj1, p1); - } + { + adj0->sub_type.midchain.fixup_func (vm, adj0, p0); + adj1->sub_type.midchain.fixup_func (vm, adj1, p1); + } vlib_validate_buffer_enqueue_x2 (vm, node, next_index, to_next, n_left_to_next, @@ -2415,11 +2457,11 @@ ip4_rewrite_inline (vlib_main_t * vm, while (n_left_from > 0 && n_left_to_next > 0) { - ip_adjacency_t * adj0; - vlib_buffer_t * p0; - ip4_header_t * ip0; + ip_adjacency_t *adj0; + vlib_buffer_t *p0; + ip4_header_t *ip0; u32 pi0, rw_len0, adj_index0, next0, error0, checksum0; - u32 tx_sw_if_index0; + u32 tx_sw_if_index0; pi0 = to_next[0] = from[0]; @@ -2427,18 +2469,18 @@ ip4_rewrite_inline (vlib_main_t * vm, adj_index0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX]; - /* We should never rewrite a pkt using the MISS adjacency */ - ASSERT(adj_index0); + /* We should never rewrite a pkt using the MISS adjacency */ + ASSERT (adj_index0); adj0 = ip_get_adjacency (lm, adj_index0); ip0 = vlib_buffer_get_current (p0); error0 = IP4_ERROR_NONE; - next0 = IP4_REWRITE_NEXT_DROP; /* drop on error */ + next0 = IP4_REWRITE_NEXT_DROP; /* drop on error */ /* Decrement TTL & update checksum. */ - if (PREDICT_TRUE(!(p0->flags & VNET_BUFFER_LOCALLY_ORIGINATED))) + if (PREDICT_TRUE (!(p0->flags & VNET_BUFFER_LOCALLY_ORIGINATED))) { i32 ttl0 = ip0->ttl; @@ -2456,67 +2498,65 @@ ip4_rewrite_inline (vlib_main_t * vm, ASSERT (ip0->checksum == ip4_header_checksum (ip0)); - if (PREDICT_FALSE(ttl0 <= 0)) - { - /* - * If the ttl drops below 1 when forwarding, generate - * an ICMP response. - */ - error0 = IP4_ERROR_TIME_EXPIRED; - next0 = IP4_REWRITE_NEXT_ICMP_ERROR; - vnet_buffer (p0)->sw_if_index[VLIB_TX] = (u32)~0; - icmp4_error_set_vnet_buffer(p0, ICMP4_time_exceeded, - ICMP4_time_exceeded_ttl_exceeded_in_transit, 0); - } + if (PREDICT_FALSE (ttl0 <= 0)) + { + /* + * If the ttl drops below 1 when forwarding, generate + * an ICMP response. + */ + error0 = IP4_ERROR_TIME_EXPIRED; + next0 = IP4_REWRITE_NEXT_ICMP_ERROR; + vnet_buffer (p0)->sw_if_index[VLIB_TX] = (u32) ~ 0; + icmp4_error_set_vnet_buffer (p0, ICMP4_time_exceeded, + ICMP4_time_exceeded_ttl_exceeded_in_transit, + 0); + } + } + else + { + p0->flags &= ~VNET_BUFFER_LOCALLY_ORIGINATED; } - else - { - p0->flags &= ~VNET_BUFFER_LOCALLY_ORIGINATED; - } /* Guess we are only writing on simple Ethernet header. */ - vnet_rewrite_one_header (adj0[0], ip0, - sizeof (ethernet_header_t)); - - /* Update packet buffer attributes/set output interface. */ - rw_len0 = adj0[0].rewrite_header.data_bytes; - vnet_buffer(p0)->ip.save_rewrite_length = rw_len0; - - if (PREDICT_FALSE (rw_len0 > sizeof(ethernet_header_t))) - vlib_increment_combined_counter - (&adjacency_counters, - cpu_index, adj_index0, - /* packet increment */ 0, - /* byte increment */ rw_len0-sizeof(ethernet_header_t)); - - /* Check MTU of outgoing interface. */ - error0 = (vlib_buffer_length_in_chain (vm, p0) - > adj0[0].rewrite_header.max_l3_packet_bytes - ? IP4_ERROR_MTU_EXCEEDED - : error0); + vnet_rewrite_one_header (adj0[0], ip0, sizeof (ethernet_header_t)); + + /* Update packet buffer attributes/set output interface. */ + rw_len0 = adj0[0].rewrite_header.data_bytes; + vnet_buffer (p0)->ip.save_rewrite_length = rw_len0; + + if (PREDICT_FALSE (rw_len0 > sizeof (ethernet_header_t))) + vlib_increment_combined_counter + (&adjacency_counters, cpu_index, adj_index0, + /* packet increment */ 0, + /* byte increment */ rw_len0 - sizeof (ethernet_header_t)); + + /* Check MTU of outgoing interface. */ + error0 = (vlib_buffer_length_in_chain (vm, p0) + > adj0[0].rewrite_header.max_l3_packet_bytes + ? IP4_ERROR_MTU_EXCEEDED : error0); p0->error = error_node->errors[error0]; - /* Don't adjust the buffer for ttl issue; icmp-error node wants - * to see the IP headerr */ - if (PREDICT_TRUE(error0 == IP4_ERROR_NONE)) - { - p0->current_data -= rw_len0; - p0->current_length += rw_len0; - tx_sw_if_index0 = adj0[0].rewrite_header.sw_if_index; + /* Don't adjust the buffer for ttl issue; icmp-error node wants + * to see the IP headerr */ + if (PREDICT_TRUE (error0 == IP4_ERROR_NONE)) + { + p0->current_data -= rw_len0; + p0->current_length += rw_len0; + tx_sw_if_index0 = adj0[0].rewrite_header.sw_if_index; - vnet_buffer (p0)->sw_if_index[VLIB_TX] = tx_sw_if_index0; - next0 = adj0[0].rewrite_header.next_index; + vnet_buffer (p0)->sw_if_index[VLIB_TX] = tx_sw_if_index0; + next0 = adj0[0].rewrite_header.next_index; if (is_midchain) - { - adj0->sub_type.midchain.fixup_func(vm, adj0, p0); + { + adj0->sub_type.midchain.fixup_func (vm, adj0, p0); } - vnet_feature_arc_start(lm->output_feature_arc_index, - tx_sw_if_index0, &next0, p0); + vnet_feature_arc_start (lm->output_feature_arc_index, + tx_sw_if_index0, &next0, p0); - } + } from += 1; n_left_from -= 1; @@ -2572,61 +2612,50 @@ ip4_rewrite_inline (vlib_main_t * vm, */ static uword ip4_rewrite (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) + vlib_node_runtime_t * node, vlib_frame_t * frame) { return ip4_rewrite_inline (vm, node, frame, 0); } static uword ip4_midchain (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) + vlib_node_runtime_t * node, vlib_frame_t * frame) { return ip4_rewrite_inline (vm, node, frame, 1); } -VLIB_REGISTER_NODE (ip4_rewrite_node) = { - .function = ip4_rewrite, - .name = "ip4-rewrite", - .vector_size = sizeof (u32), - - .format_trace = format_ip4_rewrite_trace, - - .n_next_nodes = 2, - .next_nodes = { - [IP4_REWRITE_NEXT_DROP] = "error-drop", - [IP4_REWRITE_NEXT_ICMP_ERROR] = "ip4-icmp-error", - }, -}; - -VLIB_NODE_FUNCTION_MULTIARCH (ip4_rewrite_node, ip4_rewrite) - -VLIB_REGISTER_NODE (ip4_midchain_node) = { - .function = ip4_midchain, - .name = "ip4-midchain", - .vector_size = sizeof (u32), +VLIB_REGISTER_NODE (ip4_rewrite_node) = +{ + .function = ip4_rewrite,.name = "ip4-rewrite",.vector_size = + sizeof (u32),.format_trace = format_ip4_rewrite_trace,.n_next_nodes = + 2,.next_nodes = + { + [IP4_REWRITE_NEXT_DROP] = "error-drop", + [IP4_REWRITE_NEXT_ICMP_ERROR] = "ip4-icmp-error",} +,}; - .format_trace = format_ip4_forward_next_trace, +VLIB_NODE_FUNCTION_MULTIARCH (ip4_rewrite_node, ip4_rewrite); - .sibling_of = "ip4-rewrite", -}; +VLIB_REGISTER_NODE (ip4_midchain_node) = +{ +.function = ip4_midchain,.name = "ip4-midchain",.vector_size = + sizeof (u32),.format_trace = format_ip4_forward_next_trace,.sibling_of = + "ip4-rewrite",}; -VLIB_NODE_FUNCTION_MULTIARCH (ip4_midchain_node, ip4_midchain) +VLIB_NODE_FUNCTION_MULTIARCH (ip4_midchain_node, ip4_midchain); static clib_error_t * add_del_interface_table (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, vlib_cli_command_t * cmd) { - vnet_main_t * vnm = vnet_get_main(); - clib_error_t * error = 0; + vnet_main_t *vnm = vnet_get_main (); + clib_error_t *error = 0; u32 sw_if_index, table_id; sw_if_index = ~0; - if (! unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index)) + if (!unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index)) { error = clib_error_return (0, "unknown interface `%U'", format_unformat_error, input); @@ -2643,11 +2672,11 @@ add_del_interface_table (vlib_main_t * vm, } { - ip4_main_t * im = &ip4_main; + ip4_main_t *im = &ip4_main; u32 fib_index; fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, - table_id); + table_id); // // FIXME-LATER @@ -2658,7 +2687,7 @@ add_del_interface_table (vlib_main_t * vm, im->fib_index_by_sw_if_index[sw_if_index] = fib_index; } - done: +done: return error; } @@ -2683,7 +2712,8 @@ add_del_interface_table (vlib_main_t * vm, * @cliexcmd{set interface ip table GigabitEthernet2/0/0 2} ?*/ /* *INDENT-OFF* */ -VLIB_CLI_COMMAND (set_interface_ip_table_command, static) = { +VLIB_CLI_COMMAND (set_interface_ip_table_command, static) = +{ .path = "set interface ip table", .function = add_del_interface_table, .short_help = "set interface ip table <interface> <table-id>", @@ -2693,14 +2723,13 @@ VLIB_CLI_COMMAND (set_interface_ip_table_command, static) = { static uword ip4_lookup_multicast (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) + vlib_node_runtime_t * node, vlib_frame_t * frame) { - ip4_main_t * im = &ip4_main; - vlib_combined_counter_main_t * cm = &load_balance_main.lbm_to_counters; - u32 n_left_from, n_left_to_next, * from, * to_next; + ip4_main_t *im = &ip4_main; + vlib_combined_counter_main_t *cm = &load_balance_main.lbm_to_counters; + u32 n_left_from, n_left_to_next, *from, *to_next; ip_lookup_next_t next; - u32 cpu_index = os_get_cpu_number(); + u32 cpu_index = os_get_cpu_number (); from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; @@ -2708,22 +2737,21 @@ ip4_lookup_multicast (vlib_main_t * vm, while (n_left_from > 0) { - vlib_get_next_frame (vm, node, next, - to_next, n_left_to_next); + vlib_get_next_frame (vm, node, next, to_next, n_left_to_next); while (n_left_from >= 4 && n_left_to_next >= 2) { - vlib_buffer_t * p0, * p1; + vlib_buffer_t *p0, *p1; u32 pi0, pi1, lb_index0, lb_index1, wrong_next; ip_lookup_next_t next0, next1; - ip4_header_t * ip0, * ip1; - u32 fib_index0, fib_index1; + ip4_header_t *ip0, *ip1; + u32 fib_index0, fib_index1; const dpo_id_t *dpo0, *dpo1; - const load_balance_t * lb0, * lb1; + const load_balance_t *lb0, *lb1; /* Prefetch next iteration. */ { - vlib_buffer_t * p2, * p3; + vlib_buffer_t *p2, *p3; p2 = vlib_get_buffer (vm, from[2]); p3 = vlib_get_buffer (vm, from[3]); @@ -2744,59 +2772,65 @@ ip4_lookup_multicast (vlib_main_t * vm, ip0 = vlib_buffer_get_current (p0); ip1 = vlib_buffer_get_current (p1); - fib_index0 = vec_elt (im->fib_index_by_sw_if_index, vnet_buffer (p0)->sw_if_index[VLIB_RX]); - fib_index1 = vec_elt (im->fib_index_by_sw_if_index, vnet_buffer (p1)->sw_if_index[VLIB_RX]); - fib_index0 = (vnet_buffer(p0)->sw_if_index[VLIB_TX] == (u32)~0) ? - fib_index0 : vnet_buffer(p0)->sw_if_index[VLIB_TX]; - fib_index1 = (vnet_buffer(p1)->sw_if_index[VLIB_TX] == (u32)~0) ? - fib_index1 : vnet_buffer(p1)->sw_if_index[VLIB_TX]; - - lb_index0 = ip4_fib_table_lookup_lb (ip4_fib_get(fib_index0), - &ip0->dst_address); - lb_index1 = ip4_fib_table_lookup_lb (ip4_fib_get(fib_index1), - &ip1->dst_address); + fib_index0 = + vec_elt (im->fib_index_by_sw_if_index, + vnet_buffer (p0)->sw_if_index[VLIB_RX]); + fib_index1 = + vec_elt (im->fib_index_by_sw_if_index, + vnet_buffer (p1)->sw_if_index[VLIB_RX]); + fib_index0 = + (vnet_buffer (p0)->sw_if_index[VLIB_TX] == + (u32) ~ 0) ? fib_index0 : vnet_buffer (p0)->sw_if_index[VLIB_TX]; + fib_index1 = + (vnet_buffer (p1)->sw_if_index[VLIB_TX] == + (u32) ~ 0) ? fib_index1 : vnet_buffer (p1)->sw_if_index[VLIB_TX]; + + lb_index0 = ip4_fib_table_lookup_lb (ip4_fib_get (fib_index0), + &ip0->dst_address); + lb_index1 = ip4_fib_table_lookup_lb (ip4_fib_get (fib_index1), + &ip1->dst_address); lb0 = load_balance_get (lb_index0); lb1 = load_balance_get (lb_index1); ASSERT (lb0->lb_n_buckets > 0); ASSERT (is_pow2 (lb0->lb_n_buckets)); - ASSERT (lb1->lb_n_buckets > 0); + ASSERT (lb1->lb_n_buckets > 0); ASSERT (is_pow2 (lb1->lb_n_buckets)); vnet_buffer (p0)->ip.flow_hash = ip4_compute_flow_hash - (ip0, lb0->lb_hash_config); + (ip0, lb0->lb_hash_config); vnet_buffer (p1)->ip.flow_hash = ip4_compute_flow_hash - (ip1, lb1->lb_hash_config); + (ip1, lb1->lb_hash_config); - dpo0 = load_balance_get_bucket_i(lb0, - (vnet_buffer (p0)->ip.flow_hash & - (lb0->lb_n_buckets_minus_1))); - dpo1 = load_balance_get_bucket_i(lb1, - (vnet_buffer (p1)->ip.flow_hash & - (lb1->lb_n_buckets_minus_1))); + dpo0 = load_balance_get_bucket_i (lb0, + (vnet_buffer (p0)->ip.flow_hash & + (lb0->lb_n_buckets_minus_1))); + dpo1 = load_balance_get_bucket_i (lb1, + (vnet_buffer (p1)->ip.flow_hash & + (lb1->lb_n_buckets_minus_1))); next0 = dpo0->dpoi_next_node; vnet_buffer (p0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index; next1 = dpo1->dpoi_next_node; vnet_buffer (p1)->ip.adj_index[VLIB_TX] = dpo1->dpoi_index; - if (1) /* $$$$$$ HACK FIXME */ - vlib_increment_combined_counter - (cm, cpu_index, lb_index0, 1, - vlib_buffer_length_in_chain (vm, p0)); - if (1) /* $$$$$$ HACK FIXME */ - vlib_increment_combined_counter - (cm, cpu_index, lb_index1, 1, - vlib_buffer_length_in_chain (vm, p1)); + if (1) /* $$$$$$ HACK FIXME */ + vlib_increment_combined_counter + (cm, cpu_index, lb_index0, 1, + vlib_buffer_length_in_chain (vm, p0)); + if (1) /* $$$$$$ HACK FIXME */ + vlib_increment_combined_counter + (cm, cpu_index, lb_index1, 1, + vlib_buffer_length_in_chain (vm, p1)); from += 2; to_next += 2; n_left_to_next -= 2; n_left_from -= 2; - wrong_next = (next0 != next) + 2*(next1 != next); + wrong_next = (next0 != next) + 2 * (next1 != next); if (PREDICT_FALSE (wrong_next != 0)) { switch (wrong_next) @@ -2827,7 +2861,8 @@ ip4_lookup_multicast (vlib_main_t * vm, /* A B B */ vlib_put_next_frame (vm, node, next, n_left_to_next); next = next1; - vlib_get_next_frame (vm, node, next, to_next, n_left_to_next); + vlib_get_next_frame (vm, node, next, to_next, + n_left_to_next); } } } @@ -2835,13 +2870,13 @@ ip4_lookup_multicast (vlib_main_t * vm, while (n_left_from > 0 && n_left_to_next > 0) { - vlib_buffer_t * p0; - ip4_header_t * ip0; + vlib_buffer_t *p0; + ip4_header_t *ip0; u32 pi0, lb_index0; ip_lookup_next_t next0; - u32 fib_index0; + u32 fib_index0; const dpo_id_t *dpo0; - const load_balance_t * lb0; + const load_balance_t *lb0; pi0 = from[0]; to_next[0] = pi0; @@ -2851,12 +2886,12 @@ ip4_lookup_multicast (vlib_main_t * vm, ip0 = vlib_buffer_get_current (p0); fib_index0 = vec_elt (im->fib_index_by_sw_if_index, - vnet_buffer (p0)->sw_if_index[VLIB_RX]); - fib_index0 = (vnet_buffer(p0)->sw_if_index[VLIB_TX] == (u32)~0) ? - fib_index0 : vnet_buffer(p0)->sw_if_index[VLIB_TX]; + vnet_buffer (p0)->sw_if_index[VLIB_RX]); + fib_index0 = (vnet_buffer (p0)->sw_if_index[VLIB_TX] == (u32) ~ 0) ? + fib_index0 : vnet_buffer (p0)->sw_if_index[VLIB_TX]; - lb_index0 = ip4_fib_table_lookup_lb (ip4_fib_get(fib_index0), - &ip0->dst_address); + lb_index0 = ip4_fib_table_lookup_lb (ip4_fib_get (fib_index0), + &ip0->dst_address); lb0 = load_balance_get (lb_index0); @@ -2864,19 +2899,19 @@ ip4_lookup_multicast (vlib_main_t * vm, ASSERT (is_pow2 (lb0->lb_n_buckets)); vnet_buffer (p0)->ip.flow_hash = ip4_compute_flow_hash - (ip0, lb0->lb_hash_config); + (ip0, lb0->lb_hash_config); - dpo0 = load_balance_get_bucket_i(lb0, - (vnet_buffer (p0)->ip.flow_hash & - (lb0->lb_n_buckets_minus_1))); + dpo0 = load_balance_get_bucket_i (lb0, + (vnet_buffer (p0)->ip.flow_hash & + (lb0->lb_n_buckets_minus_1))); next0 = dpo0->dpoi_next_node; vnet_buffer (p0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index; - if (1) /* $$$$$$ HACK FIXME */ - vlib_increment_combined_counter - (cm, cpu_index, lb_index0, 1, - vlib_buffer_length_in_chain (vm, p0)); + if (1) /* $$$$$$ HACK FIXME */ + vlib_increment_combined_counter + (cm, cpu_index, lb_index0, 1, + vlib_buffer_length_in_chain (vm, p0)); from += 1; to_next += 1; @@ -2888,8 +2923,7 @@ ip4_lookup_multicast (vlib_main_t * vm, n_left_to_next += 1; vlib_put_next_frame (vm, node, next, n_left_to_next); next = next0; - vlib_get_next_frame (vm, node, next, - to_next, n_left_to_next); + vlib_get_next_frame (vm, node, next, to_next, n_left_to_next); to_next[0] = pi0; to_next += 1; n_left_to_next -= 1; @@ -2900,39 +2934,33 @@ ip4_lookup_multicast (vlib_main_t * vm, } if (node->flags & VLIB_NODE_FLAG_TRACE) - ip4_forward_next_trace(vm, node, frame, VLIB_TX); + ip4_forward_next_trace (vm, node, frame, VLIB_TX); return frame->n_vectors; } -VLIB_REGISTER_NODE (ip4_lookup_multicast_node,static) = { - .function = ip4_lookup_multicast, - .name = "ip4-lookup-multicast", - .vector_size = sizeof (u32), - .sibling_of = "ip4-lookup", - .format_trace = format_ip4_lookup_trace, - - .n_next_nodes = 0, -}; - -VLIB_NODE_FUNCTION_MULTIARCH (ip4_lookup_multicast_node, ip4_lookup_multicast) - -VLIB_REGISTER_NODE (ip4_multicast_node,static) = { - .function = ip4_drop, - .name = "ip4-multicast", - .vector_size = sizeof (u32), +VLIB_REGISTER_NODE (ip4_lookup_multicast_node, static) = +{ +.function = ip4_lookup_multicast,.name = + "ip4-lookup-multicast",.vector_size = sizeof (u32),.sibling_of = + "ip4-lookup",.format_trace = format_ip4_lookup_trace,.n_next_nodes = 0,}; - .format_trace = format_ip4_forward_next_trace, +VLIB_NODE_FUNCTION_MULTIARCH (ip4_lookup_multicast_node, + ip4_lookup_multicast); - .n_next_nodes = 1, - .next_nodes = { - [0] = "error-drop", - }, -}; +VLIB_REGISTER_NODE (ip4_multicast_node, static) = +{ + .function = ip4_drop,.name = "ip4-multicast",.vector_size = + sizeof (u32),.format_trace = format_ip4_forward_next_trace,.n_next_nodes = + 1,.next_nodes = + { + [0] = "error-drop",} +,}; -int ip4_lookup_validate (ip4_address_t *a, u32 fib_index0) +int +ip4_lookup_validate (ip4_address_t * a, u32 fib_index0) { - ip4_fib_mtrie_t * mtrie0; + ip4_fib_mtrie_t *mtrie0; ip4_fib_mtrie_leaf_t leaf0; u32 lbi0; @@ -2949,13 +2977,12 @@ int ip4_lookup_validate (ip4_address_t *a, u32 fib_index0) lbi0 = ip4_fib_mtrie_leaf_get_adj_index (leaf0); - return lbi0 == ip4_fib_table_lookup_lb (ip4_fib_get(fib_index0), a); + return lbi0 == ip4_fib_table_lookup_lb (ip4_fib_get (fib_index0), a); } static clib_error_t * test_lookup_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, vlib_cli_command_t * cmd) { ip4_fib_t *fib; u32 table_id = 0; @@ -2965,36 +2992,37 @@ test_lookup_command_fn (vlib_main_t * vm, ip4_address_t ip4_base_address; u64 errors = 0; - while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { if (unformat (input, "table %d", &table_id)) - { - /* Make sure the entry exists. */ - fib = ip4_fib_get(table_id); - if ((fib) && (fib->index != table_id)) - return clib_error_return (0, "<fib-index> %d does not exist", - table_id); - } + { + /* Make sure the entry exists. */ + fib = ip4_fib_get (table_id); + if ((fib) && (fib->index != table_id)) + return clib_error_return (0, "<fib-index> %d does not exist", + table_id); + } else if (unformat (input, "count %f", &count)) ; else if (unformat (input, "%U", unformat_ip4_address, &ip4_base_address)) - ; + ; else - return clib_error_return (0, "unknown input `%U'", - format_unformat_error, input); - } + return clib_error_return (0, "unknown input `%U'", + format_unformat_error, input); + } n = count; for (i = 0; i < n; i++) { if (!ip4_lookup_validate (&ip4_base_address, table_id)) - errors++; + errors++; ip4_base_address.as_u32 = - clib_host_to_net_u32 (1 + - clib_net_to_host_u32 (ip4_base_address.as_u32)); + clib_host_to_net_u32 (1 + + clib_net_to_host_u32 (ip4_base_address.as_u32)); } if (errors) @@ -3023,18 +3051,20 @@ test_lookup_command_fn (vlib_main_t * vm, * @cliexend ?*/ /* *INDENT-OFF* */ -VLIB_CLI_COMMAND (lookup_test_command, static) = { - .path = "test lookup", - .short_help = "test lookup <ipv4-addr> [table <fib-id>] [count <nn>]", - .function = test_lookup_command_fn, +VLIB_CLI_COMMAND (lookup_test_command, static) = +{ + .path = "test lookup", + .short_help = "test lookup <ipv4-addr> [table <fib-id>] [count <nn>]", + .function = test_lookup_command_fn, }; /* *INDENT-ON* */ -int vnet_set_ip4_flow_hash (u32 table_id, u32 flow_hash_config) +int +vnet_set_ip4_flow_hash (u32 table_id, u32 flow_hash_config) { - ip4_main_t * im4 = &ip4_main; - ip4_fib_t * fib; - uword * p = hash_get (im4->fib_index_by_table_id, table_id); + ip4_main_t *im4 = &ip4_main; + ip4_fib_t *fib; + uword *p = hash_get (im4->fib_index_by_table_id, table_id); if (p == 0) return VNET_API_ERROR_NO_SUCH_FIB; @@ -3047,27 +3077,29 @@ int vnet_set_ip4_flow_hash (u32 table_id, u32 flow_hash_config) static clib_error_t * set_ip_flow_hash_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, + vlib_cli_command_t * cmd) { int matched = 0; u32 table_id = 0; u32 flow_hash_config = 0; int rv; - while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { - if (unformat (input, "table %d", &table_id)) - matched = 1; + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "table %d", &table_id)) + matched = 1; #define _(a,v) \ else if (unformat (input, #a)) { flow_hash_config |= v; matched=1;} - foreach_flow_hash_bit + foreach_flow_hash_bit #undef _ - else break; - } + else + break; + } if (matched == 0) return clib_error_return (0, "unknown input `%U'", - format_unformat_error, input); + format_unformat_error, input); rv = vnet_set_ip4_flow_hash (table_id, flow_hash_config); switch (rv) @@ -3170,7 +3202,8 @@ set_ip_flow_hash_command_fn (vlib_main_t * vm, * @cliexend ?*/ /* *INDENT-OFF* */ -VLIB_CLI_COMMAND (set_ip_flow_hash_command, static) = { +VLIB_CLI_COMMAND (set_ip_flow_hash_command, static) = +{ .path = "set ip flow-hash", .short_help = "set ip flow-hash table <table-id> [src] [dst] [sport] [dport] [proto] [reverse]", @@ -3178,14 +3211,15 @@ VLIB_CLI_COMMAND (set_ip_flow_hash_command, static) = { }; /* *INDENT-ON* */ -int vnet_set_ip4_classify_intfc (vlib_main_t * vm, u32 sw_if_index, - u32 table_index) +int +vnet_set_ip4_classify_intfc (vlib_main_t * vm, u32 sw_if_index, + u32 table_index) { - vnet_main_t * vnm = vnet_get_main(); - vnet_interface_main_t * im = &vnm->interface_main; - ip4_main_t * ipm = &ip4_main; - ip_lookup_main_t * lm = &ipm->lookup_main; - vnet_classify_main_t * cm = &vnet_classify_main; + vnet_main_t *vnm = vnet_get_main (); + vnet_interface_main_t *im = &vnm->interface_main; + ip4_main_t *ipm = &ip4_main; + ip_lookup_main_t *lm = &ipm->lookup_main; + vnet_classify_main_t *cm = &vnet_classify_main; ip4_address_t *if_addr; if (pool_is_free_index (im->sw_interfaces, sw_if_index)) @@ -3195,69 +3229,68 @@ int vnet_set_ip4_classify_intfc (vlib_main_t * vm, u32 sw_if_index, return VNET_API_ERROR_NO_SUCH_ENTRY; vec_validate (lm->classify_table_index_by_sw_if_index, sw_if_index); - lm->classify_table_index_by_sw_if_index [sw_if_index] = table_index; + lm->classify_table_index_by_sw_if_index[sw_if_index] = table_index; if_addr = ip4_interface_first_address (ipm, sw_if_index, NULL); if (NULL != if_addr) - { + { fib_prefix_t pfx = { - .fp_len = 32, - .fp_proto = FIB_PROTOCOL_IP4, - .fp_addr.ip4 = *if_addr, + .fp_len = 32, + .fp_proto = FIB_PROTOCOL_IP4, + .fp_addr.ip4 = *if_addr, }; u32 fib_index; - fib_index = fib_table_get_index_for_sw_if_index(FIB_PROTOCOL_IP4, - sw_if_index); + fib_index = fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4, + sw_if_index); - if (table_index != (u32) ~0) - { - dpo_id_t dpo = DPO_INVALID; - - dpo_set(&dpo, - DPO_CLASSIFY, - DPO_PROTO_IP4, - classify_dpo_create(DPO_PROTO_IP4, table_index)); - - fib_table_entry_special_dpo_add(fib_index, - &pfx, - FIB_SOURCE_CLASSIFY, - FIB_ENTRY_FLAG_NONE, - &dpo); - dpo_reset(&dpo); - } + if (table_index != (u32) ~ 0) + { + dpo_id_t dpo = DPO_INVALID; + + dpo_set (&dpo, + DPO_CLASSIFY, + DPO_PROTO_IP4, + classify_dpo_create (DPO_PROTO_IP4, table_index)); + + fib_table_entry_special_dpo_add (fib_index, + &pfx, + FIB_SOURCE_CLASSIFY, + FIB_ENTRY_FLAG_NONE, &dpo); + dpo_reset (&dpo); + } else - { - fib_table_entry_special_remove(fib_index, - &pfx, - FIB_SOURCE_CLASSIFY); - } - } + { + fib_table_entry_special_remove (fib_index, + &pfx, FIB_SOURCE_CLASSIFY); + } + } return 0; } static clib_error_t * set_ip_classify_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, + vlib_cli_command_t * cmd) { u32 table_index = ~0; int table_index_set = 0; u32 sw_if_index = ~0; int rv; - while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { - if (unformat (input, "table-index %d", &table_index)) - table_index_set = 1; - else if (unformat (input, "intfc %U", unformat_vnet_sw_interface, - vnet_get_main(), &sw_if_index)) - ; - else - break; - } + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "table-index %d", &table_index)) + table_index_set = 1; + else if (unformat (input, "intfc %U", unformat_vnet_sw_interface, + vnet_get_main (), &sw_if_index)) + ; + else + break; + } if (table_index_set == 0) return clib_error_return (0, "classify table-index must be specified"); @@ -3292,10 +3325,19 @@ set_ip_classify_command_fn (vlib_main_t * vm, * @cliexcmd{set ip classify intfc GigabitEthernet2/0/0 table-index 1} ?*/ /* *INDENT-OFF* */ -VLIB_CLI_COMMAND (set_ip_classify_command, static) = { +VLIB_CLI_COMMAND (set_ip_classify_command, static) = +{ .path = "set ip classify", .short_help = "set ip classify intfc <interface> table-index <classify-idx>", .function = set_ip_classify_command_fn, }; /* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip4_input.c b/vnet/vnet/ip/ip4_input.c index a3620de8b42..69b1e5a83d2 100644 --- a/vnet/vnet/ip/ip4_input.c +++ b/vnet/vnet/ip/ip4_input.c @@ -42,24 +42,26 @@ #include <vnet/ppp/ppp.h> #include <vnet/hdlc/hdlc.h> -typedef struct { +typedef struct +{ u8 packet_data[64]; } ip4_input_trace_t; -static u8 * format_ip4_input_trace (u8 * s, va_list * va) +static u8 * +format_ip4_input_trace (u8 * s, va_list * va) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*va, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*va, vlib_node_t *); - ip4_input_trace_t * t = va_arg (*va, ip4_input_trace_t *); + ip4_input_trace_t *t = va_arg (*va, ip4_input_trace_t *); s = format (s, "%U", - format_ip4_header, - t->packet_data, sizeof (t->packet_data)); + format_ip4_header, t->packet_data, sizeof (t->packet_data)); return s; } -typedef enum { +typedef enum +{ IP4_INPUT_NEXT_DROP, IP4_INPUT_NEXT_PUNT, IP4_INPUT_NEXT_LOOKUP, @@ -73,17 +75,17 @@ typedef enum { always_inline uword ip4_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node, - vlib_frame_t * frame, - int verify_checksum) + vlib_frame_t * frame, int verify_checksum) { - ip4_main_t * im = &ip4_main; - vnet_main_t * vnm = vnet_get_main(); - ip_lookup_main_t * lm = &im->lookup_main; - u32 n_left_from, * from, * to_next; + ip4_main_t *im = &ip4_main; + vnet_main_t *vnm = vnet_get_main (); + ip_lookup_main_t *lm = &im->lookup_main; + u32 n_left_from, *from, *to_next; ip4_input_next_t next_index; - vlib_node_runtime_t * error_node = vlib_node_get_runtime (vm, ip4_input_node.index); - vlib_simple_counter_main_t * cm; - u32 cpu_index = os_get_cpu_number(); + vlib_node_runtime_t *error_node = + vlib_node_get_runtime (vm, ip4_input_node.index); + vlib_simple_counter_main_t *cm; + u32 cpu_index = os_get_cpu_number (); from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; @@ -95,19 +97,18 @@ ip4_input_inline (vlib_main_t * vm, sizeof (ip4_input_trace_t)); cm = vec_elt_at_index (vnm->interface_main.sw_if_counters, - VNET_INTERFACE_COUNTER_IP4); + VNET_INTERFACE_COUNTER_IP4); while (n_left_from > 0) { u32 n_left_to_next; - vlib_get_next_frame (vm, node, next_index, - to_next, n_left_to_next); + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); while (n_left_from >= 4 && n_left_to_next >= 2) { - vlib_buffer_t * p0, * p1; - ip4_header_t * ip0, * ip1; + vlib_buffer_t *p0, *p1; + ip4_header_t *ip0, *ip1; u32 sw_if_index0, pi0, ip_len0, cur_len0, next0 = 0; u32 sw_if_index1, pi1, ip_len1, cur_len1, next1 = 0; i32 len_diff0, len_diff1; @@ -115,7 +116,7 @@ ip4_input_inline (vlib_main_t * vm, /* Prefetch next iteration. */ { - vlib_buffer_t * p2, * p3; + vlib_buffer_t *p2, *p3; p2 = vlib_get_buffer (vm, from[2]); p3 = vlib_get_buffer (vm, from[3]); @@ -143,8 +144,12 @@ ip4_input_inline (vlib_main_t * vm, sw_if_index0 = vnet_buffer (p0)->sw_if_index[VLIB_RX]; sw_if_index1 = vnet_buffer (p1)->sw_if_index[VLIB_RX]; - arc0 = ip4_address_is_multicast (&ip0->dst_address) ? lm->mcast_feature_arc_index : lm->ucast_feature_arc_index; - arc1 = ip4_address_is_multicast (&ip1->dst_address) ? lm->mcast_feature_arc_index : lm->ucast_feature_arc_index; + arc0 = + ip4_address_is_multicast (&ip0->dst_address) ? + lm->mcast_feature_arc_index : lm->ucast_feature_arc_index; + arc1 = + ip4_address_is_multicast (&ip1->dst_address) ? + lm->mcast_feature_arc_index : lm->ucast_feature_arc_index; vnet_buffer (p0)->ip.adj_index[VLIB_RX] = ~0; vnet_buffer (p1)->ip.adj_index[VLIB_RX] = ~0; @@ -158,12 +163,20 @@ ip4_input_inline (vlib_main_t * vm, error0 = error1 = IP4_ERROR_NONE; /* Punt packets with options. */ - error0 = (ip0->ip_version_and_header_length & 0xf) != 5 ? IP4_ERROR_OPTIONS : error0; - error1 = (ip1->ip_version_and_header_length & 0xf) != 5 ? IP4_ERROR_OPTIONS : error1; + error0 = + (ip0->ip_version_and_header_length & 0xf) != + 5 ? IP4_ERROR_OPTIONS : error0; + error1 = + (ip1->ip_version_and_header_length & 0xf) != + 5 ? IP4_ERROR_OPTIONS : error1; /* Version != 4? Drop it. */ - error0 = (ip0->ip_version_and_header_length >> 4) != 4 ? IP4_ERROR_VERSION : error0; - error1 = (ip1->ip_version_and_header_length >> 4) != 4 ? IP4_ERROR_VERSION : error1; + error0 = + (ip0->ip_version_and_header_length >> 4) != + 4 ? IP4_ERROR_VERSION : error0; + error1 = + (ip1->ip_version_and_header_length >> 4) != + 4 ? IP4_ERROR_VERSION : error1; /* Verify header checksum. */ if (verify_checksum) @@ -173,17 +186,31 @@ ip4_input_inline (vlib_main_t * vm, ip4_partial_header_checksum_x1 (ip0, sum0); ip4_partial_header_checksum_x1 (ip1, sum1); - error0 = 0xffff != ip_csum_fold (sum0) ? IP4_ERROR_BAD_CHECKSUM : error0; - error1 = 0xffff != ip_csum_fold (sum1) ? IP4_ERROR_BAD_CHECKSUM : error1; + error0 = + 0xffff != + ip_csum_fold (sum0) ? IP4_ERROR_BAD_CHECKSUM : error0; + error1 = + 0xffff != + ip_csum_fold (sum1) ? IP4_ERROR_BAD_CHECKSUM : error1; } /* Drop fragmentation offset 1 packets. */ - error0 = ip4_get_fragment_offset (ip0) == 1 ? IP4_ERROR_FRAGMENT_OFFSET_ONE : error0; - error1 = ip4_get_fragment_offset (ip1) == 1 ? IP4_ERROR_FRAGMENT_OFFSET_ONE : error1; + error0 = + ip4_get_fragment_offset (ip0) == + 1 ? IP4_ERROR_FRAGMENT_OFFSET_ONE : error0; + error1 = + ip4_get_fragment_offset (ip1) == + 1 ? IP4_ERROR_FRAGMENT_OFFSET_ONE : error1; /* TTL < 1? Drop it. */ - error0 = (ip0->ttl < 1 && arc0 == lm->ucast_feature_arc_index) ? IP4_ERROR_TIME_EXPIRED : error0; - error1 = (ip1->ttl < 1 && arc1 == lm->ucast_feature_arc_index) ? IP4_ERROR_TIME_EXPIRED : error1; + error0 = (ip0->ttl < 1 + && arc0 == + lm->ucast_feature_arc_index) ? IP4_ERROR_TIME_EXPIRED : + error0; + error1 = (ip1->ttl < 1 + && arc1 == + lm->ucast_feature_arc_index) ? IP4_ERROR_TIME_EXPIRED : + error1; /* Verify lengths. */ ip_len0 = clib_net_to_host_u16 (ip0->length); @@ -205,33 +232,45 @@ ip4_input_inline (vlib_main_t * vm, p0->error = error_node->errors[error0]; p1->error = error_node->errors[error1]; - if (PREDICT_FALSE(error0 != IP4_ERROR_NONE)) - { - if (error0 == IP4_ERROR_TIME_EXPIRED) { - icmp4_error_set_vnet_buffer(p0, ICMP4_time_exceeded, - ICMP4_time_exceeded_ttl_exceeded_in_transit, 0); - next0 = IP4_INPUT_NEXT_ICMP_ERROR; - } else - next0 = error0 != IP4_ERROR_OPTIONS ? IP4_INPUT_NEXT_DROP : IP4_INPUT_NEXT_PUNT; - } - if (PREDICT_FALSE(error1 != IP4_ERROR_NONE)) - { - if (error1 == IP4_ERROR_TIME_EXPIRED) { - icmp4_error_set_vnet_buffer(p1, ICMP4_time_exceeded, - ICMP4_time_exceeded_ttl_exceeded_in_transit, 0); - next1 = IP4_INPUT_NEXT_ICMP_ERROR; - } else - next1 = error1 != IP4_ERROR_OPTIONS ? IP4_INPUT_NEXT_DROP : IP4_INPUT_NEXT_PUNT; - } + if (PREDICT_FALSE (error0 != IP4_ERROR_NONE)) + { + if (error0 == IP4_ERROR_TIME_EXPIRED) + { + icmp4_error_set_vnet_buffer (p0, ICMP4_time_exceeded, + ICMP4_time_exceeded_ttl_exceeded_in_transit, + 0); + next0 = IP4_INPUT_NEXT_ICMP_ERROR; + } + else + next0 = + error0 != + IP4_ERROR_OPTIONS ? IP4_INPUT_NEXT_DROP : + IP4_INPUT_NEXT_PUNT; + } + if (PREDICT_FALSE (error1 != IP4_ERROR_NONE)) + { + if (error1 == IP4_ERROR_TIME_EXPIRED) + { + icmp4_error_set_vnet_buffer (p1, ICMP4_time_exceeded, + ICMP4_time_exceeded_ttl_exceeded_in_transit, + 0); + next1 = IP4_INPUT_NEXT_ICMP_ERROR; + } + else + next1 = + error1 != + IP4_ERROR_OPTIONS ? IP4_INPUT_NEXT_DROP : + IP4_INPUT_NEXT_PUNT; + } vlib_validate_buffer_enqueue_x2 (vm, node, next_index, to_next, n_left_to_next, pi0, pi1, next0, next1); - } + } while (n_left_from > 0 && n_left_to_next > 0) { - vlib_buffer_t * p0; - ip4_header_t * ip0; + vlib_buffer_t *p0; + ip4_header_t *ip0; u32 sw_if_index0, pi0, ip_len0, cur_len0, next0 = 0; i32 len_diff0; u8 error0, arc0; @@ -248,7 +287,9 @@ ip4_input_inline (vlib_main_t * vm, sw_if_index0 = vnet_buffer (p0)->sw_if_index[VLIB_RX]; - arc0 = ip4_address_is_multicast (&ip0->dst_address) ? lm->mcast_feature_arc_index : lm->ucast_feature_arc_index; + arc0 = + ip4_address_is_multicast (&ip0->dst_address) ? + lm->mcast_feature_arc_index : lm->ucast_feature_arc_index; vnet_buffer (p0)->ip.adj_index[VLIB_RX] = ~0; vnet_feature_arc_start (arc0, sw_if_index0, &next0, p0); @@ -257,10 +298,14 @@ ip4_input_inline (vlib_main_t * vm, error0 = IP4_ERROR_NONE; /* Punt packets with options. */ - error0 = (ip0->ip_version_and_header_length & 0xf) != 5 ? IP4_ERROR_OPTIONS : error0; + error0 = + (ip0->ip_version_and_header_length & 0xf) != + 5 ? IP4_ERROR_OPTIONS : error0; /* Version != 4? Drop it. */ - error0 = (ip0->ip_version_and_header_length >> 4) != 4 ? IP4_ERROR_VERSION : error0; + error0 = + (ip0->ip_version_and_header_length >> 4) != + 4 ? IP4_ERROR_VERSION : error0; /* Verify header checksum. */ if (verify_checksum) @@ -268,14 +313,21 @@ ip4_input_inline (vlib_main_t * vm, ip_csum_t sum0; ip4_partial_header_checksum_x1 (ip0, sum0); - error0 = 0xffff != ip_csum_fold (sum0) ? IP4_ERROR_BAD_CHECKSUM : error0; + error0 = + 0xffff != + ip_csum_fold (sum0) ? IP4_ERROR_BAD_CHECKSUM : error0; } /* Drop fragmentation offset 1 packets. */ - error0 = ip4_get_fragment_offset (ip0) == 1 ? IP4_ERROR_FRAGMENT_OFFSET_ONE : error0; + error0 = + ip4_get_fragment_offset (ip0) == + 1 ? IP4_ERROR_FRAGMENT_OFFSET_ONE : error0; /* TTL < 1? Drop it. */ - error0 = (ip0->ttl < 1 && arc0 == lm->ucast_feature_arc_index) ? IP4_ERROR_TIME_EXPIRED : error0; + error0 = (ip0->ttl < 1 + && arc0 == + lm->ucast_feature_arc_index) ? IP4_ERROR_TIME_EXPIRED : + error0; /* Verify lengths. */ ip_len0 = clib_net_to_host_u16 (ip0->length); @@ -288,15 +340,21 @@ ip4_input_inline (vlib_main_t * vm, error0 = len_diff0 < 0 ? IP4_ERROR_BAD_LENGTH : error0; p0->error = error_node->errors[error0]; - if (PREDICT_FALSE(error0 != IP4_ERROR_NONE)) - { - if (error0 == IP4_ERROR_TIME_EXPIRED) { - icmp4_error_set_vnet_buffer(p0, ICMP4_time_exceeded, - ICMP4_time_exceeded_ttl_exceeded_in_transit, 0); - next0 = IP4_INPUT_NEXT_ICMP_ERROR; - } else - next0 = error0 != IP4_ERROR_OPTIONS ? IP4_INPUT_NEXT_DROP : IP4_INPUT_NEXT_PUNT; - } + if (PREDICT_FALSE (error0 != IP4_ERROR_NONE)) + { + if (error0 == IP4_ERROR_TIME_EXPIRED) + { + icmp4_error_set_vnet_buffer (p0, ICMP4_time_exceeded, + ICMP4_time_exceeded_ttl_exceeded_in_transit, + 0); + next0 = IP4_INPUT_NEXT_ICMP_ERROR; + } + else + next0 = + error0 != + IP4_ERROR_OPTIONS ? IP4_INPUT_NEXT_DROP : + IP4_INPUT_NEXT_PUNT; + } vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, n_left_to_next, @@ -324,10 +382,10 @@ ip4_input_inline (vlib_main_t * vm, @par Graph mechanics: buffer metadata, next index usage @em Uses: - - vnet_feature_config_main_t cm corresponding to each pkt's dst address unicast / + - vnet_feature_config_main_t cm corresponding to each pkt's dst address unicast / multicast status. - <code>b->current_config_index</code> corresponding to each pkt's - rx sw_if_index. + rx sw_if_index. - This sets the per-packet graph trajectory, ensuring that each packet visits the per-interface features in order. @@ -342,30 +400,28 @@ ip4_input_inline (vlib_main_t * vm, <em>Next Indices:</em> - Dispatches pkts to the (first) feature node: <code> vnet_get_config_data (... &next0 ...); </code> - or @c error-drop + or @c error-drop */ static uword -ip4_input (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) +ip4_input (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { return ip4_input_inline (vm, node, frame, /* verify_checksum */ 1); } static uword ip4_input_no_checksum (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) + vlib_node_runtime_t * node, vlib_frame_t * frame) { return ip4_input_inline (vm, node, frame, /* verify_checksum */ 0); } -static char * ip4_error_strings[] = { +static char *ip4_error_strings[] = { #define _(sym,string) string, foreach_ip4_error #undef _ }; +/* *INDENT-OFF* */ VLIB_REGISTER_NODE (ip4_input_node) = { .function = ip4_input, .name = "ip4-input", @@ -386,9 +442,11 @@ VLIB_REGISTER_NODE (ip4_input_node) = { .format_buffer = format_ip4_header, .format_trace = format_ip4_input_trace, }; +/* *INDENT-ON* */ -VLIB_NODE_FUNCTION_MULTIARCH (ip4_input_node, ip4_input) +VLIB_NODE_FUNCTION_MULTIARCH (ip4_input_node, ip4_input); +/* *INDENT-OFF* */ VLIB_REGISTER_NODE (ip4_input_no_checksum_node,static) = { .function = ip4_input_no_checksum, .name = "ip4-input-no-checksum", @@ -406,22 +464,22 @@ VLIB_REGISTER_NODE (ip4_input_no_checksum_node,static) = { .format_buffer = format_ip4_header, .format_trace = format_ip4_input_trace, }; +/* *INDENT-ON* */ -VLIB_NODE_FUNCTION_MULTIARCH (ip4_input_no_checksum_node, ip4_input_no_checksum) +VLIB_NODE_FUNCTION_MULTIARCH (ip4_input_no_checksum_node, + ip4_input_no_checksum); -static clib_error_t * ip4_init (vlib_main_t * vm) +static clib_error_t * +ip4_init (vlib_main_t * vm) { - clib_error_t * error; + clib_error_t *error; - ethernet_register_input_type (vm, ETHERNET_TYPE_IP4, - ip4_input_node.index); - ppp_register_input_protocol (vm, PPP_PROTOCOL_ip4, - ip4_input_node.index); - hdlc_register_input_protocol (vm, HDLC_PROTOCOL_ip4, - ip4_input_node.index); + ethernet_register_input_type (vm, ETHERNET_TYPE_IP4, ip4_input_node.index); + ppp_register_input_protocol (vm, PPP_PROTOCOL_ip4, ip4_input_node.index); + hdlc_register_input_protocol (vm, HDLC_PROTOCOL_ip4, ip4_input_node.index); { - pg_node_t * pn; + pg_node_t *pn; pn = pg_get_node (ip4_input_node.index); pn->unformat_edit = unformat_pg_ip4_header; pn = pg_get_node (ip4_input_no_checksum_node.index); @@ -434,7 +492,7 @@ static clib_error_t * ip4_init (vlib_main_t * vm) if ((error = vlib_call_init_function (vm, ip4_source_check_init))) return error; - if ((error = vlib_call_init_function + if ((error = vlib_call_init_function (vm, ip4_source_and_port_range_check_init))) return error; @@ -448,3 +506,11 @@ static clib_error_t * ip4_init (vlib_main_t * vm) } VLIB_INIT_FUNCTION (ip4_init); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip4_mtrie.c b/vnet/vnet/ip/ip4_mtrie.c index 364182415ba..6e3d0e8068b 100644 --- a/vnet/vnet/ip/ip4_mtrie.c +++ b/vnet/vnet/ip/ip4_mtrie.c @@ -41,15 +41,18 @@ #include <vnet/fib/fib_entry.h> static void -ply_init (ip4_fib_mtrie_ply_t * p, ip4_fib_mtrie_leaf_t init, uword prefix_len) +ply_init (ip4_fib_mtrie_ply_t * p, ip4_fib_mtrie_leaf_t init, + uword prefix_len) { - p->n_non_empty_leafs = ip4_fib_mtrie_leaf_is_empty (init) ? 0 : ARRAY_LEN (p->leaves); - memset (p->dst_address_bits_of_leaves, prefix_len, sizeof (p->dst_address_bits_of_leaves)); + p->n_non_empty_leafs = + ip4_fib_mtrie_leaf_is_empty (init) ? 0 : ARRAY_LEN (p->leaves); + memset (p->dst_address_bits_of_leaves, prefix_len, + sizeof (p->dst_address_bits_of_leaves)); /* Initialize leaves. */ #ifdef CLIB_HAVE_VEC128 { - u32x4 * l, init_x4; + u32x4 *l, init_x4; #ifndef __ALTIVEC__ init_x4 = u32x4_splat (init); @@ -62,9 +65,10 @@ ply_init (ip4_fib_mtrie_ply_t * p, ip4_fib_mtrie_leaf_t init, uword prefix_len) y.as_u32[3] = init; init_x4 = y.as_u32x4; } -#endif +#endif - for (l = p->leaves_as_u32x4; l < p->leaves_as_u32x4 + ARRAY_LEN (p->leaves_as_u32x4); l += 4) + for (l = p->leaves_as_u32x4; + l < p->leaves_as_u32x4 + ARRAY_LEN (p->leaves_as_u32x4); l += 4) { l[0] = init_x4; l[1] = init_x4; @@ -74,7 +78,7 @@ ply_init (ip4_fib_mtrie_ply_t * p, ip4_fib_mtrie_leaf_t init, uword prefix_len) } #else { - u32 * l; + u32 *l; for (l = p->leaves; l < p->leaves + ARRAY_LEN (p->leaves); l += 4) { @@ -88,9 +92,10 @@ ply_init (ip4_fib_mtrie_ply_t * p, ip4_fib_mtrie_leaf_t init, uword prefix_len) } static ip4_fib_mtrie_leaf_t -ply_create (ip4_fib_mtrie_t * m, ip4_fib_mtrie_leaf_t init_leaf, uword prefix_len) +ply_create (ip4_fib_mtrie_t * m, ip4_fib_mtrie_leaf_t init_leaf, + uword prefix_len) { - ip4_fib_mtrie_ply_t * p; + ip4_fib_mtrie_ply_t *p; /* Get cache aligned ply. */ pool_get_aligned (m->ply_pool, p, sizeof (p[0])); @@ -115,12 +120,12 @@ ply_free (ip4_fib_mtrie_t * m, ip4_fib_mtrie_ply_t * p) is_root = p - m->ply_pool == 0; - for (i = 0 ; i < ARRAY_LEN (p->leaves); i++) + for (i = 0; i < ARRAY_LEN (p->leaves); i++) { ip4_fib_mtrie_leaf_t l = p->leaves[i]; if (ip4_fib_mtrie_leaf_is_next_ply (l)) ply_free (m, get_next_ply_for_leaf (m, l)); - } + } if (is_root) ply_init (p, IP4_FIB_MTRIE_LEAF_EMPTY, /* prefix_len */ 0); @@ -128,15 +133,17 @@ ply_free (ip4_fib_mtrie_t * m, ip4_fib_mtrie_ply_t * p) pool_put (m->ply_pool, p); } -void ip4_fib_free (ip4_fib_mtrie_t * m) +void +ip4_fib_free (ip4_fib_mtrie_t * m) { - ip4_fib_mtrie_ply_t * root_ply = pool_elt_at_index (m->ply_pool, 0); + ip4_fib_mtrie_ply_t *root_ply = pool_elt_at_index (m->ply_pool, 0); ply_free (m, root_ply); } -u32 ip4_mtrie_lookup_address (ip4_fib_mtrie_t * m, ip4_address_t dst) +u32 +ip4_mtrie_lookup_address (ip4_fib_mtrie_t * m, ip4_address_t dst) { - ip4_fib_mtrie_ply_t * p = pool_elt_at_index (m->ply_pool, 0); + ip4_fib_mtrie_ply_t *p = pool_elt_at_index (m->ply_pool, 0); ip4_fib_mtrie_leaf_t l; l = p->leaves[dst.as_u8[0]]; @@ -160,7 +167,8 @@ u32 ip4_mtrie_lookup_address (ip4_fib_mtrie_t * m, ip4_address_t dst) return ip4_fib_mtrie_leaf_get_adj_index (l); } -typedef struct { +typedef struct +{ ip4_address_t dst_address; u32 dst_address_length; u32 adj_index; @@ -176,24 +184,26 @@ set_ply_with_more_specific_leaf (ip4_fib_mtrie_t * m, uword i; ASSERT (ip4_fib_mtrie_leaf_is_terminal (new_leaf)); - ASSERT (! ip4_fib_mtrie_leaf_is_empty (new_leaf)); + ASSERT (!ip4_fib_mtrie_leaf_is_empty (new_leaf)); for (i = 0; i < ARRAY_LEN (ply->leaves); i++) { old_leaf = ply->leaves[i]; /* Recurse into sub plies. */ - if (! ip4_fib_mtrie_leaf_is_terminal (old_leaf)) + if (!ip4_fib_mtrie_leaf_is_terminal (old_leaf)) { - ip4_fib_mtrie_ply_t * sub_ply = get_next_ply_for_leaf (m, old_leaf); - set_ply_with_more_specific_leaf (m, sub_ply, new_leaf, new_leaf_dst_address_bits); + ip4_fib_mtrie_ply_t *sub_ply = get_next_ply_for_leaf (m, old_leaf); + set_ply_with_more_specific_leaf (m, sub_ply, new_leaf, + new_leaf_dst_address_bits); } /* Replace less specific terminal leaves with new leaf. */ - else if (new_leaf_dst_address_bits >= ply->dst_address_bits_of_leaves[i]) + else if (new_leaf_dst_address_bits >= + ply->dst_address_bits_of_leaves[i]) { - __sync_val_compare_and_swap (&ply->leaves[i], old_leaf, new_leaf); - ASSERT(ply->leaves[i] == new_leaf); + __sync_val_compare_and_swap (&ply->leaves[i], old_leaf, new_leaf); + ASSERT (ply->leaves[i] == new_leaf); ply->dst_address_bits_of_leaves[i] = new_leaf_dst_address_bits; ply->n_non_empty_leafs += ip4_fib_mtrie_leaf_is_empty (old_leaf); } @@ -203,8 +213,7 @@ set_ply_with_more_specific_leaf (ip4_fib_mtrie_t * m, static void set_leaf (ip4_fib_mtrie_t * m, ip4_fib_mtrie_set_unset_leaf_args_t * a, - u32 old_ply_index, - u32 dst_address_byte_index) + u32 old_ply_index, u32 dst_address_byte_index) { ip4_fib_mtrie_leaf_t old_leaf, new_leaf; i32 n_dst_bits_next_plies; @@ -213,7 +222,8 @@ set_leaf (ip4_fib_mtrie_t * m, ASSERT (a->dst_address_length > 0 && a->dst_address_length <= 32); ASSERT (dst_address_byte_index < ARRAY_LEN (a->dst_address.as_u8)); - n_dst_bits_next_plies = a->dst_address_length - BITS (u8) * (dst_address_byte_index + 1); + n_dst_bits_next_plies = + a->dst_address_length - BITS (u8) * (dst_address_byte_index + 1); dst_byte = a->dst_address.as_u8[dst_address_byte_index]; @@ -223,11 +233,12 @@ set_leaf (ip4_fib_mtrie_t * m, uword i, n_dst_bits_this_ply, old_leaf_is_terminal; n_dst_bits_this_ply = -n_dst_bits_next_plies; - ASSERT ((a->dst_address.as_u8[dst_address_byte_index] & pow2_mask (n_dst_bits_this_ply)) == 0); + ASSERT ((a->dst_address.as_u8[dst_address_byte_index] & + pow2_mask (n_dst_bits_this_ply)) == 0); for (i = dst_byte; i < dst_byte + (1 << n_dst_bits_this_ply); i++) { - ip4_fib_mtrie_ply_t * old_ply, * new_ply; + ip4_fib_mtrie_ply_t *old_ply, *new_ply; old_ply = pool_elt_at_index (m->ply_pool, old_ply_index); @@ -241,49 +252,57 @@ set_leaf (ip4_fib_mtrie_t * m, if (old_leaf_is_terminal) { - old_ply->dst_address_bits_of_leaves[i] = a->dst_address_length; - __sync_val_compare_and_swap (&old_ply->leaves[i], old_leaf, - new_leaf); - ASSERT(old_ply->leaves[i] == new_leaf); - old_ply->n_non_empty_leafs += ip4_fib_mtrie_leaf_is_empty (old_leaf); - ASSERT (old_ply->n_non_empty_leafs <= ARRAY_LEN (old_ply->leaves)); + old_ply->dst_address_bits_of_leaves[i] = + a->dst_address_length; + __sync_val_compare_and_swap (&old_ply->leaves[i], old_leaf, + new_leaf); + ASSERT (old_ply->leaves[i] == new_leaf); + old_ply->n_non_empty_leafs += + ip4_fib_mtrie_leaf_is_empty (old_leaf); + ASSERT (old_ply->n_non_empty_leafs <= + ARRAY_LEN (old_ply->leaves)); } else { /* Existing leaf points to another ply. We need to place new_leaf into all more specific slots. */ new_ply = get_next_ply_for_leaf (m, old_leaf); - set_ply_with_more_specific_leaf (m, new_ply, new_leaf, a->dst_address_length); + set_ply_with_more_specific_leaf (m, new_ply, new_leaf, + a->dst_address_length); } } - else if (! old_leaf_is_terminal) + else if (!old_leaf_is_terminal) { new_ply = get_next_ply_for_leaf (m, old_leaf); - set_leaf (m, a, new_ply - m->ply_pool, dst_address_byte_index + 1); + set_leaf (m, a, new_ply - m->ply_pool, + dst_address_byte_index + 1); } } } else { - ip4_fib_mtrie_ply_t * old_ply, * new_ply; + ip4_fib_mtrie_ply_t *old_ply, *new_ply; old_ply = pool_elt_at_index (m->ply_pool, old_ply_index); old_leaf = old_ply->leaves[dst_byte]; if (ip4_fib_mtrie_leaf_is_terminal (old_leaf)) { - new_leaf = ply_create (m, old_leaf, old_ply->dst_address_bits_of_leaves[dst_byte]); + new_leaf = + ply_create (m, old_leaf, + old_ply->dst_address_bits_of_leaves[dst_byte]); new_ply = get_next_ply_for_leaf (m, new_leaf); /* Refetch since ply_create may move pool. */ old_ply = pool_elt_at_index (m->ply_pool, old_ply_index); - __sync_val_compare_and_swap (&old_ply->leaves[dst_byte], old_leaf, - new_leaf); - ASSERT(old_ply->leaves[dst_byte] == new_leaf); + __sync_val_compare_and_swap (&old_ply->leaves[dst_byte], old_leaf, + new_leaf); + ASSERT (old_ply->leaves[dst_byte] == new_leaf); old_ply->dst_address_bits_of_leaves[dst_byte] = 0; - old_ply->n_non_empty_leafs -= ip4_fib_mtrie_leaf_is_non_empty (old_leaf); + old_ply->n_non_empty_leafs -= + ip4_fib_mtrie_leaf_is_non_empty (old_leaf); ASSERT (old_ply->n_non_empty_leafs >= 0); /* Account for the ply we just created. */ @@ -299,8 +318,7 @@ set_leaf (ip4_fib_mtrie_t * m, static uword unset_leaf (ip4_fib_mtrie_t * m, ip4_fib_mtrie_set_unset_leaf_args_t * a, - ip4_fib_mtrie_ply_t * old_ply, - u32 dst_address_byte_index) + ip4_fib_mtrie_ply_t * old_ply, u32 dst_address_byte_index) { ip4_fib_mtrie_leaf_t old_leaf, del_leaf; i32 n_dst_bits_next_plies; @@ -310,13 +328,15 @@ unset_leaf (ip4_fib_mtrie_t * m, ASSERT (a->dst_address_length > 0 && a->dst_address_length <= 32); ASSERT (dst_address_byte_index < ARRAY_LEN (a->dst_address.as_u8)); - n_dst_bits_next_plies = a->dst_address_length - BITS (u8) * (dst_address_byte_index + 1); + n_dst_bits_next_plies = + a->dst_address_length - BITS (u8) * (dst_address_byte_index + 1); dst_byte = a->dst_address.as_u8[dst_address_byte_index]; if (n_dst_bits_next_plies < 0) dst_byte &= ~pow2_mask (-n_dst_bits_next_plies); - n_dst_bits_this_ply = n_dst_bits_next_plies <= 0 ? -n_dst_bits_next_plies : 0; + n_dst_bits_this_ply = + n_dst_bits_next_plies <= 0 ? -n_dst_bits_next_plies : 0; n_dst_bits_this_ply = clib_min (8, n_dst_bits_this_ply); del_leaf = ip4_fib_mtrie_leaf_set_adj_index (a->adj_index); @@ -327,14 +347,15 @@ unset_leaf (ip4_fib_mtrie_t * m, old_leaf_is_terminal = ip4_fib_mtrie_leaf_is_terminal (old_leaf); if (old_leaf == del_leaf - || (! old_leaf_is_terminal - && unset_leaf (m, a, get_next_ply_for_leaf (m, old_leaf), dst_address_byte_index + 1))) + || (!old_leaf_is_terminal + && unset_leaf (m, a, get_next_ply_for_leaf (m, old_leaf), + dst_address_byte_index + 1))) { old_ply->leaves[i] = IP4_FIB_MTRIE_LEAF_EMPTY; old_ply->dst_address_bits_of_leaves[i] = 0; /* No matter what we just deleted a non-empty leaf. */ - ASSERT (! ip4_fib_mtrie_leaf_is_empty (old_leaf)); + ASSERT (!ip4_fib_mtrie_leaf_is_empty (old_leaf)); old_ply->n_non_empty_leafs -= 1; ASSERT (old_ply->n_non_empty_leafs >= 0); @@ -351,12 +372,14 @@ unset_leaf (ip4_fib_mtrie_t * m, return 0; } -void ip4_mtrie_init (ip4_fib_mtrie_t * m) +void +ip4_mtrie_init (ip4_fib_mtrie_t * m) { ip4_fib_mtrie_leaf_t root; memset (m, 0, sizeof (m[0])); m->default_leaf = IP4_FIB_MTRIE_LEAF_EMPTY; - root = ply_create (m, IP4_FIB_MTRIE_LEAF_EMPTY, /* dst_address_bits_of_leaves */ 0); + root = ply_create (m, IP4_FIB_MTRIE_LEAF_EMPTY, /* dst_address_bits_of_leaves */ + 0); ASSERT (ip4_fib_mtrie_leaf_get_next_ply_index (root) == 0); } @@ -364,15 +387,14 @@ void ip4_fib_mtrie_add_del_route (ip4_fib_t * fib, ip4_address_t dst_address, u32 dst_address_length, - u32 adj_index, - u32 is_del) + u32 adj_index, u32 is_del) { - ip4_fib_mtrie_t * m = &fib->mtrie; - ip4_fib_mtrie_ply_t * root_ply; + ip4_fib_mtrie_t *m = &fib->mtrie; + ip4_fib_mtrie_ply_t *root_ply; ip4_fib_mtrie_set_unset_leaf_args_t a; - ip4_main_t * im = &ip4_main; + ip4_main_t *im = &ip4_main; - ASSERT(m->ply_pool != 0); + ASSERT (m->ply_pool != 0); root_ply = pool_elt_at_index (m->ply_pool, 0); @@ -382,7 +404,7 @@ ip4_fib_mtrie_add_del_route (ip4_fib_t * fib, a.dst_address_length = dst_address_length; a.adj_index = adj_index; - if (! is_del) + if (!is_del) { if (dst_address_length == 0) m->default_leaf = ip4_fib_mtrie_leaf_set_adj_index (adj_index); @@ -396,7 +418,7 @@ ip4_fib_mtrie_add_del_route (ip4_fib_t * fib, else { - ip4_main_t * im = &ip4_main; + ip4_main_t *im = &ip4_main; uword i; unset_leaf (m, &a, root_ply, 0); @@ -404,26 +426,27 @@ ip4_fib_mtrie_add_del_route (ip4_fib_t * fib, /* Find next less specific route and insert into mtrie. */ for (i = dst_address_length - 1; i >= 1; i--) { - uword * p; - index_t lbi; + uword *p; + index_t lbi; ip4_address_t key; - if (! fib->fib_entry_by_dst_address[i]) + if (!fib->fib_entry_by_dst_address[i]) continue; - + key.as_u32 = dst_address.as_u32 & im->fib_masks[i]; p = hash_get (fib->fib_entry_by_dst_address[i], key.as_u32); if (p) { - lbi = fib_entry_contribute_ip_forwarding(p[0])->dpoi_index; + lbi = fib_entry_contribute_ip_forwarding (p[0])->dpoi_index; if (INDEX_INVALID == lbi) - continue; + continue; a.dst_address = key; a.adj_index = lbi; a.dst_address_length = i; - set_leaf (m, &a, /* ply_index */ 0, /* dst_address_byte_index */ 0); + set_leaf (m, &a, /* ply_index */ 0, + /* dst_address_byte_index */ 0); break; } } @@ -432,11 +455,12 @@ ip4_fib_mtrie_add_del_route (ip4_fib_t * fib, } /* Returns number of bytes of memory used by mtrie. */ -static uword mtrie_memory_usage (ip4_fib_mtrie_t * m, ip4_fib_mtrie_ply_t * p) +static uword +mtrie_memory_usage (ip4_fib_mtrie_t * m, ip4_fib_mtrie_ply_t * p) { uword bytes, i; - if (! p) + if (!p) { if (pool_is_free_index (m->ply_pool, 0)) return 0; @@ -444,7 +468,7 @@ static uword mtrie_memory_usage (ip4_fib_mtrie_t * m, ip4_fib_mtrie_ply_t * p) } bytes = sizeof (p[0]); - for (i = 0 ; i < ARRAY_LEN (p->leaves); i++) + for (i = 0; i < ARRAY_LEN (p->leaves); i++) { ip4_fib_mtrie_leaf_t l = p->leaves[i]; if (ip4_fib_mtrie_leaf_is_next_ply (l)) @@ -454,7 +478,8 @@ static uword mtrie_memory_usage (ip4_fib_mtrie_t * m, ip4_fib_mtrie_ply_t * p) return bytes; } -static u8 * format_ip4_fib_mtrie_leaf (u8 * s, va_list * va) +static u8 * +format_ip4_fib_mtrie_leaf (u8 * s, va_list * va) { ip4_fib_mtrie_leaf_t l = va_arg (*va, ip4_fib_mtrie_leaf_t); @@ -467,33 +492,36 @@ static u8 * format_ip4_fib_mtrie_leaf (u8 * s, va_list * va) return s; } -static u8 * format_ip4_fib_mtrie_ply (u8 * s, va_list * va) +static u8 * +format_ip4_fib_mtrie_ply (u8 * s, va_list * va) { - ip4_fib_mtrie_t * m = va_arg (*va, ip4_fib_mtrie_t *); + ip4_fib_mtrie_t *m = va_arg (*va, ip4_fib_mtrie_t *); u32 base_address = va_arg (*va, u32); u32 ply_index = va_arg (*va, u32); u32 dst_address_byte_index = va_arg (*va, u32); - ip4_fib_mtrie_ply_t * p; + ip4_fib_mtrie_ply_t *p; uword i, indent; p = pool_elt_at_index (m->ply_pool, ply_index); indent = format_get_indent (s); - s = format (s, "ply index %d, %d non-empty leaves", ply_index, p->n_non_empty_leafs); + s = + format (s, "ply index %d, %d non-empty leaves", ply_index, + p->n_non_empty_leafs); for (i = 0; i < ARRAY_LEN (p->leaves); i++) { ip4_fib_mtrie_leaf_t l = p->leaves[i]; - if (! ip4_fib_mtrie_leaf_is_empty (l)) + if (!ip4_fib_mtrie_leaf_is_empty (l)) { u32 a, ia_length; ip4_address_t ia; - a = base_address + (i << (24 - 8*dst_address_byte_index)); + a = base_address + (i << (24 - 8 * dst_address_byte_index)); ia.as_u32 = clib_host_to_net_u32 (a); if (ip4_fib_mtrie_leaf_is_terminal (l)) ia_length = p->dst_address_bits_of_leaves[i]; else - ia_length = 8*(1 + dst_address_byte_index); + ia_length = 8 * (1 + dst_address_byte_index); s = format (s, "\n%U%20U %U", format_white_space, indent + 2, format_ip4_address_and_length, &ia, ia_length, @@ -511,9 +539,10 @@ static u8 * format_ip4_fib_mtrie_ply (u8 * s, va_list * va) return s; } -u8 * format_ip4_fib_mtrie (u8 * s, va_list * va) +u8 * +format_ip4_fib_mtrie (u8 * s, va_list * va) { - ip4_fib_mtrie_t * m = va_arg (*va, ip4_fib_mtrie_t *); + ip4_fib_mtrie_t *m = va_arg (*va, ip4_fib_mtrie_t *); s = format (s, "%d plies, memory usage %U", pool_elts (m->ply_pool), @@ -523,8 +552,17 @@ u8 * format_ip4_fib_mtrie (u8 * s, va_list * va) { ip4_address_t base_address; base_address.as_u32 = 0; - s = format (s, "\n %U", format_ip4_fib_mtrie_ply, m, base_address, 0, 0); + s = + format (s, "\n %U", format_ip4_fib_mtrie_ply, m, base_address, 0, 0); } return s; } + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip4_mtrie.h b/vnet/vnet/ip/ip4_mtrie.h index 4771be43e3f..c0afc2cf842 100644 --- a/vnet/vnet/ip/ip4_mtrie.h +++ b/vnet/vnet/ip/ip4_mtrie.h @@ -54,49 +54,67 @@ typedef u32 ip4_fib_mtrie_leaf_t; #define IP4_FIB_MTRIE_LEAF_EMPTY (1 + 2*0) #define IP4_FIB_MTRIE_LEAF_ROOT (0 + 2*0) -always_inline u32 ip4_fib_mtrie_leaf_is_empty (ip4_fib_mtrie_leaf_t n) -{ return n == IP4_FIB_MTRIE_LEAF_EMPTY; } +always_inline u32 +ip4_fib_mtrie_leaf_is_empty (ip4_fib_mtrie_leaf_t n) +{ + return n == IP4_FIB_MTRIE_LEAF_EMPTY; +} -always_inline u32 ip4_fib_mtrie_leaf_is_non_empty (ip4_fib_mtrie_leaf_t n) -{ return n != IP4_FIB_MTRIE_LEAF_EMPTY; } +always_inline u32 +ip4_fib_mtrie_leaf_is_non_empty (ip4_fib_mtrie_leaf_t n) +{ + return n != IP4_FIB_MTRIE_LEAF_EMPTY; +} -always_inline u32 ip4_fib_mtrie_leaf_is_terminal (ip4_fib_mtrie_leaf_t n) -{ return n & 1; } +always_inline u32 +ip4_fib_mtrie_leaf_is_terminal (ip4_fib_mtrie_leaf_t n) +{ + return n & 1; +} -always_inline u32 ip4_fib_mtrie_leaf_get_adj_index (ip4_fib_mtrie_leaf_t n) +always_inline u32 +ip4_fib_mtrie_leaf_get_adj_index (ip4_fib_mtrie_leaf_t n) { ASSERT (ip4_fib_mtrie_leaf_is_terminal (n)); return n >> 1; } -always_inline ip4_fib_mtrie_leaf_t ip4_fib_mtrie_leaf_set_adj_index (u32 adj_index) +always_inline ip4_fib_mtrie_leaf_t +ip4_fib_mtrie_leaf_set_adj_index (u32 adj_index) { ip4_fib_mtrie_leaf_t l; - l = 1 + 2*adj_index; + l = 1 + 2 * adj_index; ASSERT (ip4_fib_mtrie_leaf_get_adj_index (l) == adj_index); return l; } -always_inline u32 ip4_fib_mtrie_leaf_is_next_ply (ip4_fib_mtrie_leaf_t n) -{ return (n & 1) == 0; } +always_inline u32 +ip4_fib_mtrie_leaf_is_next_ply (ip4_fib_mtrie_leaf_t n) +{ + return (n & 1) == 0; +} -always_inline u32 ip4_fib_mtrie_leaf_get_next_ply_index (ip4_fib_mtrie_leaf_t n) +always_inline u32 +ip4_fib_mtrie_leaf_get_next_ply_index (ip4_fib_mtrie_leaf_t n) { ASSERT (ip4_fib_mtrie_leaf_is_next_ply (n)); return n >> 1; } -always_inline ip4_fib_mtrie_leaf_t ip4_fib_mtrie_leaf_set_next_ply_index (u32 i) +always_inline ip4_fib_mtrie_leaf_t +ip4_fib_mtrie_leaf_set_next_ply_index (u32 i) { ip4_fib_mtrie_leaf_t l; - l = 0 + 2*i; + l = 0 + 2 * i; ASSERT (ip4_fib_mtrie_leaf_get_next_ply_index (l) == i); return l; } /* One ply of the 4 ply mtrie fib. */ -typedef struct { - union { +typedef struct +{ + union + { ip4_fib_mtrie_leaf_t leaves[256]; #ifdef CLIB_HAVE_VEC128 @@ -111,16 +129,17 @@ typedef struct { i32 n_non_empty_leafs; /* Pad to cache line boundary. */ - u8 pad[CLIB_CACHE_LINE_BYTES - - 1 * sizeof (i32)]; -} ip4_fib_mtrie_ply_t; + u8 pad[CLIB_CACHE_LINE_BYTES - 1 * sizeof (i32)]; +} +ip4_fib_mtrie_ply_t; -STATIC_ASSERT(0 == sizeof(ip4_fib_mtrie_ply_t) % CLIB_CACHE_LINE_BYTES, - "IP4 Mtrie ply cache line"); +STATIC_ASSERT (0 == sizeof (ip4_fib_mtrie_ply_t) % CLIB_CACHE_LINE_BYTES, + "IP4 Mtrie ply cache line"); -typedef struct { +typedef struct +{ /* Pool of plies. Index zero is root ply. */ - ip4_fib_mtrie_ply_t * ply_pool; + ip4_fib_mtrie_ply_t *ply_pool; /* Special case leaf for default route 0.0.0.0/0. */ ip4_fib_mtrie_leaf_t default_leaf; @@ -130,11 +149,10 @@ void ip4_fib_mtrie_init (ip4_fib_mtrie_t * m); struct ip4_fib_t; -void ip4_fib_mtrie_add_del_route (struct ip4_fib_t * f, +void ip4_fib_mtrie_add_del_route (struct ip4_fib_t *f, ip4_address_t dst_address, u32 dst_address_length, - u32 adj_index, - u32 is_del); + u32 adj_index, u32 is_del); /* Returns adjacency index. */ u32 ip4_mtrie_lookup_address (ip4_fib_mtrie_t * m, ip4_address_t dst); @@ -149,7 +167,7 @@ ip4_fib_mtrie_lookup_step (ip4_fib_mtrie_t * m, u32 dst_address_byte_index) { ip4_fib_mtrie_leaf_t next_leaf; - ip4_fib_mtrie_ply_t * ply; + ip4_fib_mtrie_ply_t *ply; uword current_is_terminal = ip4_fib_mtrie_leaf_is_terminal (current_leaf); ply = m->ply_pool + (current_is_terminal ? 0 : (current_leaf >> 1)); @@ -160,3 +178,11 @@ ip4_fib_mtrie_lookup_step (ip4_fib_mtrie_t * m, } #endif /* included_ip_ip4_fib_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip4_packet.h b/vnet/vnet/ip/ip4_packet.h index 277b968f9ab..8da788b411f 100644 --- a/vnet/vnet/ip/ip4_packet.h +++ b/vnet/vnet/ip/ip4_packet.h @@ -46,7 +46,8 @@ /* IP4 address which can be accessed either as 4 bytes or as a 32-bit number. */ -typedef union { +typedef union +{ u8 data[4]; u32 data_u32; /* Aliases. */ @@ -54,7 +55,8 @@ typedef union { u32 as_u32; } ip4_address_t; -typedef struct { +typedef struct +{ /* IP address must be first for ip_interface_address_get_address() to work */ ip4_address_t ip4_addr; u32 fib_index; @@ -69,7 +71,8 @@ ip4_addr_fib_init (ip4_address_fib_t * addr_fib, ip4_address_t * address, } /* (src,dst) pair of addresses as found in packet header. */ -typedef struct { +typedef struct +{ ip4_address_t src, dst; } ip4_address_pair_t; @@ -83,26 +86,46 @@ ip4_address_netmask_length (ip4_address_t * a) { switch (a->as_u8[i]) { - case 0xff: result += 8; break; - case 0xfe: result += 7; goto done; - case 0xfc: result += 6; goto done; - case 0xf8: result += 5; goto done; - case 0xf0: result += 4; goto done; - case 0xe0: result += 3; goto done; - case 0xc0: result += 2; goto done; - case 0x80: result += 1; goto done; - case 0x00: result += 0; goto done; + case 0xff: + result += 8; + break; + case 0xfe: + result += 7; + goto done; + case 0xfc: + result += 6; + goto done; + case 0xf8: + result += 5; + goto done; + case 0xf0: + result += 4; + goto done; + case 0xe0: + result += 3; + goto done; + case 0xc0: + result += 2; + goto done; + case 0x80: + result += 1; + goto done; + case 0x00: + result += 0; + goto done; default: /* Not a valid netmask mask. */ return ~0; } } - done: +done: return result; } -typedef union { - struct { +typedef union +{ + struct + { /* 4 bit packet length (in 32bit units) and version VVVVLLLL. e.g. for packets w/ no options ip_version_and_header_length == 0x45. */ u8 ip_version_and_header_length; @@ -133,25 +156,31 @@ typedef union { u16 checksum; /* Source and destination address. */ - union { - struct { + union + { + struct + { ip4_address_t src_address, dst_address; }; ip4_address_pair_t address_pair; - }; + }; }; /* For checksumming we'll want to access IP header in word sized chunks. */ /* For 64 bit machines. */ + /* *INDENT-OFF* */ CLIB_PACKED (struct { u64 checksum_data_64[2]; u32 checksum_data_64_32[1]; }); + /* *INDENT-ON* */ /* For 32 bit machines. */ + /* *INDENT-OFF* */ CLIB_PACKED (struct { u32 checksum_data_32[5]; }); + /* *INDENT-ON* */ } ip4_header_t; /* Value of ip_version_and_header_length for packets w/o options. */ @@ -160,35 +189,50 @@ typedef union { always_inline int ip4_get_fragment_offset (ip4_header_t * i) -{ return clib_net_to_host_u16 (i->flags_and_fragment_offset) & 0x1fff; } +{ + return clib_net_to_host_u16 (i->flags_and_fragment_offset) & 0x1fff; +} always_inline int ip4_get_fragment_more (ip4_header_t * i) -{ return clib_net_to_host_u16 (i->flags_and_fragment_offset) & IP4_HEADER_FLAG_MORE_FRAGMENTS; } +{ + return clib_net_to_host_u16 (i->flags_and_fragment_offset) & + IP4_HEADER_FLAG_MORE_FRAGMENTS; +} always_inline int ip4_is_fragment (ip4_header_t * i) -{ return (i->flags_and_fragment_offset & - clib_net_to_host_u16 (0x1fff | IP4_HEADER_FLAG_MORE_FRAGMENTS)); } +{ + return (i->flags_and_fragment_offset & + clib_net_to_host_u16 (0x1fff | IP4_HEADER_FLAG_MORE_FRAGMENTS)); +} always_inline int ip4_is_first_fragment (ip4_header_t * i) -{ return (i->flags_and_fragment_offset & - clib_net_to_host_u16 (0x1fff | IP4_HEADER_FLAG_MORE_FRAGMENTS)) == - clib_net_to_host_u16 (IP4_HEADER_FLAG_MORE_FRAGMENTS); } +{ + return (i->flags_and_fragment_offset & + clib_net_to_host_u16 (0x1fff | IP4_HEADER_FLAG_MORE_FRAGMENTS)) == + clib_net_to_host_u16 (IP4_HEADER_FLAG_MORE_FRAGMENTS); +} /* Fragment offset in bytes. */ always_inline int ip4_get_fragment_offset_bytes (ip4_header_t * i) -{ return 8 * ip4_get_fragment_offset (i); } +{ + return 8 * ip4_get_fragment_offset (i); +} always_inline int ip4_header_bytes (ip4_header_t * i) -{ return sizeof (u32) * (i->ip_version_and_header_length & 0xf); } +{ + return sizeof (u32) * (i->ip_version_and_header_length & 0xf); +} always_inline void * ip4_next_header (ip4_header_t * i) -{ return (void *) i + ip4_header_bytes (i); } +{ + return (void *) i + ip4_header_bytes (i); +} always_inline u16 ip4_header_checksum (ip4_header_t * i) @@ -213,7 +257,9 @@ ip4_header_checksum (ip4_header_t * i) static inline uword ip4_header_checksum_is_valid (ip4_header_t * i) -{ return i->checksum == ip4_header_checksum (i); } +{ + return i->checksum == ip4_header_checksum (i); +} #define ip4_partial_header_checksum_x1(ip0,sum0) \ do { \ @@ -261,10 +307,13 @@ do { \ always_inline uword ip4_address_is_multicast (ip4_address_t * a) -{ return (a->data[0] & 0xf0) == 0xe0; } +{ + return (a->data[0] & 0xf0) == 0xe0; +} always_inline void -ip4_multicast_address_set_for_group (ip4_address_t * a, ip_multicast_group_t g) +ip4_multicast_address_set_for_group (ip4_address_t * a, + ip_multicast_group_t g) { ASSERT ((u32) g < (1 << 28)); a->as_u32 = clib_host_to_net_u32 ((0xe << 28) + g); @@ -325,3 +374,11 @@ ip4_tcp_reply_x2 (ip4_header_t * ip0, ip4_header_t * ip1, } #endif /* included_ip4_packet_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip4_pg.c b/vnet/vnet/ip/ip4_pg.c index 42dad85272a..9697a3b9c89 100644 --- a/vnet/vnet/ip/ip4_pg.c +++ b/vnet/vnet/ip/ip4_pg.c @@ -47,16 +47,15 @@ static_always_inline void compute_length_and_or_checksum (vlib_main_t * vm, u32 * packets, u32 n_packets, - u32 ip_header_offset, - u32 flags) + u32 ip_header_offset, u32 flags) { ASSERT (flags != 0); while (n_packets >= 2) { u32 pi0, pi1; - vlib_buffer_t * p0, * p1; - ip4_header_t * ip0, * ip1; + vlib_buffer_t *p0, *p1; + ip4_header_t *ip0, *ip1; ip_csum_t sum0, sum1; pi0 = packets[0]; @@ -71,8 +70,12 @@ compute_length_and_or_checksum (vlib_main_t * vm, if (flags & IP4_PG_EDIT_LENGTH) { - ip0->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, p0) - ip_header_offset); - ip1->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, p1) - ip_header_offset); + ip0->length = + clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, p0) - + ip_header_offset); + ip1->length = + clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, p1) - + ip_header_offset); } if (flags & IP4_PG_EDIT_CHECKSUM) @@ -84,8 +87,8 @@ compute_length_and_or_checksum (vlib_main_t * vm, ip1->checksum = 0; ip4_partial_header_checksum_x2 (ip0, ip1, sum0, sum1); - ip0->checksum = ~ ip_csum_fold (sum0); - ip1->checksum = ~ ip_csum_fold (sum1); + ip0->checksum = ~ip_csum_fold (sum0); + ip1->checksum = ~ip_csum_fold (sum1); ASSERT (ip0->checksum == ip4_header_checksum (ip0)); ASSERT (ip1->checksum == ip4_header_checksum (ip1)); @@ -95,8 +98,8 @@ compute_length_and_or_checksum (vlib_main_t * vm, while (n_packets >= 1) { u32 pi0; - vlib_buffer_t * p0; - ip4_header_t * ip0; + vlib_buffer_t *p0; + ip4_header_t *ip0; ip_csum_t sum0; pi0 = packets[0]; @@ -107,7 +110,9 @@ compute_length_and_or_checksum (vlib_main_t * vm, ip0 = (void *) (p0->data + ip_header_offset); if (flags & IP4_PG_EDIT_LENGTH) - ip0->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, p0) - ip_header_offset); + ip0->length = + clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, p0) - + ip_header_offset); if (flags & IP4_PG_EDIT_CHECKSUM) { @@ -116,7 +121,7 @@ compute_length_and_or_checksum (vlib_main_t * vm, ip0->checksum = 0; ip4_partial_header_checksum_x1 (ip0, sum0); - ip0->checksum = ~ ip_csum_fold (sum0); + ip0->checksum = ~ip_csum_fold (sum0); ASSERT (ip0->checksum == ip4_header_checksum (ip0)); } @@ -126,11 +131,9 @@ compute_length_and_or_checksum (vlib_main_t * vm, static void ip4_pg_edit_function (pg_main_t * pg, pg_stream_t * s, - pg_edit_group_t * g, - u32 * packets, - u32 n_packets) + pg_edit_group_t * g, u32 * packets, u32 n_packets) { - vlib_main_t * vm = vlib_get_main(); + vlib_main_t *vm = vlib_get_main (); u32 ip_offset; ip_offset = g->start_byte_offset; @@ -159,7 +162,8 @@ ip4_pg_edit_function (pg_main_t * pg, } } -typedef struct { +typedef struct +{ pg_edit_t ip_version, header_length; pg_edit_t tos; pg_edit_t length; @@ -183,53 +187,46 @@ pg_ip4_header_init (pg_ip4_header_t * p) { /* Initialize fields that are not bit fields in the IP header. */ #define _(f) pg_edit_init (&p->f, ip4_header_t, f); - _ (tos); - _ (length); - _ (fragment_id); - _ (ttl); - _ (protocol); - _ (checksum); - _ (src_address); - _ (dst_address); + _(tos); + _(length); + _(fragment_id); + _(ttl); + _(protocol); + _(checksum); + _(src_address); + _(dst_address); #undef _ /* Initialize bit fields. */ pg_edit_init_bitfield (&p->header_length, ip4_header_t, - ip_version_and_header_length, - 0, 4); + ip_version_and_header_length, 0, 4); pg_edit_init_bitfield (&p->ip_version, ip4_header_t, - ip_version_and_header_length, - 4, 4); + ip_version_and_header_length, 4, 4); pg_edit_init_bitfield (&p->fragment_offset, ip4_header_t, - flags_and_fragment_offset, - 0, 13); + flags_and_fragment_offset, 0, 13); pg_edit_init_bitfield (&p->mf_flag, ip4_header_t, - flags_and_fragment_offset, - 13, 1); + flags_and_fragment_offset, 13, 1); pg_edit_init_bitfield (&p->df_flag, ip4_header_t, - flags_and_fragment_offset, - 14, 1); + flags_and_fragment_offset, 14, 1); pg_edit_init_bitfield (&p->ce_flag, ip4_header_t, - flags_and_fragment_offset, - 15, 1); + flags_and_fragment_offset, 15, 1); } uword unformat_pg_ip4_header (unformat_input_t * input, va_list * args) { - pg_stream_t * s = va_arg (*args, pg_stream_t *); - pg_ip4_header_t * p; + pg_stream_t *s = va_arg (*args, pg_stream_t *); + pg_ip4_header_t *p; u32 group_index; - + p = pg_create_edit_group (s, sizeof (p[0]), sizeof (ip4_header_t), &group_index); pg_ip4_header_init (p); /* Defaults. */ pg_edit_set_fixed (&p->ip_version, 4); - pg_edit_set_fixed (&p->header_length, - sizeof (ip4_header_t) / sizeof (u32)); + pg_edit_set_fixed (&p->header_length, sizeof (ip4_header_t) / sizeof (u32)); pg_edit_set_fixed (&p->tos, 0); pg_edit_set_fixed (&p->ttl, 64); @@ -244,26 +241,23 @@ unformat_pg_ip4_header (unformat_input_t * input, va_list * args) p->checksum.type = PG_EDIT_UNSPECIFIED; if (unformat (input, "%U: %U -> %U", - unformat_pg_edit, - unformat_ip_protocol, &p->protocol, - unformat_pg_edit, - unformat_ip4_address, &p->src_address, - unformat_pg_edit, - unformat_ip4_address, &p->dst_address)) - goto found; - - if (! unformat (input, "%U:", - unformat_pg_edit, - unformat_ip_protocol, &p->protocol)) - goto error; + unformat_pg_edit, + unformat_ip_protocol, &p->protocol, + unformat_pg_edit, + unformat_ip4_address, &p->src_address, + unformat_pg_edit, unformat_ip4_address, &p->dst_address)) + goto found; + + if (!unformat (input, "%U:", + unformat_pg_edit, unformat_ip_protocol, &p->protocol)) + goto error; found: /* Parse options. */ while (1) { if (unformat (input, "version %U", - unformat_pg_edit, - unformat_pg_number, &p->ip_version)) + unformat_pg_edit, unformat_pg_number, &p->ip_version)) ; else if (unformat (input, "header-length %U", @@ -272,23 +266,19 @@ found: ; else if (unformat (input, "tos %U", - unformat_pg_edit, - unformat_pg_number, &p->tos)) + unformat_pg_edit, unformat_pg_number, &p->tos)) ; else if (unformat (input, "length %U", - unformat_pg_edit, - unformat_pg_number, &p->length)) + unformat_pg_edit, unformat_pg_number, &p->length)) ; else if (unformat (input, "checksum %U", - unformat_pg_edit, - unformat_pg_number, &p->checksum)) + unformat_pg_edit, unformat_pg_number, &p->checksum)) ; else if (unformat (input, "ttl %U", - unformat_pg_edit, - unformat_pg_number, &p->ttl)) + unformat_pg_edit, unformat_pg_number, &p->ttl)) ; else if (unformat (input, "fragment id %U offset %U", @@ -298,10 +288,11 @@ found: unformat_pg_number, &p->fragment_offset)) { int i; - for (i = 0; i< ARRAY_LEN (p->fragment_offset.values); i++) + for (i = 0; i < ARRAY_LEN (p->fragment_offset.values); i++) pg_edit_set_value (&p->fragment_offset, i, - pg_edit_get_value (&p->fragment_offset, i) / 8); - + pg_edit_get_value (&p->fragment_offset, + i) / 8); + } /* Flags. */ @@ -313,16 +304,16 @@ found: else if (unformat (input, "ce") || unformat (input, "CE")) pg_edit_set_fixed (&p->ce_flag, 1); - + /* Can't parse input: try next protocol level. */ else break; } { - ip_main_t * im = &ip_main; + ip_main_t *im = &ip_main; ip_protocol_t protocol; - ip_protocol_info_t * pi; + ip_protocol_info_t *pi; pi = 0; if (p->protocol.type == PG_EDIT_FIXED) @@ -335,7 +326,7 @@ found: && unformat_user (input, pi->unformat_pg_edit, s)) ; - else if (! unformat_user (input, unformat_pg_payload, s)) + else if (!unformat_user (input, unformat_pg_payload, s)) goto error; if (p->length.type == PG_EDIT_UNSPECIFIED @@ -350,7 +341,7 @@ found: if (p->checksum.type == PG_EDIT_UNSPECIFIED) { ip4_header_t fixed_header, fixed_mask, cmp_mask; - + /* See if header is all fixed and specified except for checksum field. */ memset (&cmp_mask, ~0, sizeof (cmp_mask)); @@ -358,16 +349,17 @@ found: pg_edit_group_get_fixed_packet_data (s, group_index, &fixed_header, &fixed_mask); - if (! memcmp (&fixed_mask, &cmp_mask, sizeof (cmp_mask))) + if (!memcmp (&fixed_mask, &cmp_mask, sizeof (cmp_mask))) pg_edit_set_fixed (&p->checksum, - clib_net_to_host_u16 (ip4_header_checksum (&fixed_header))); + clib_net_to_host_u16 (ip4_header_checksum + (&fixed_header))); } p = pg_get_edit_group (s, group_index); if (p->length.type == PG_EDIT_UNSPECIFIED || p->checksum.type == PG_EDIT_UNSPECIFIED) { - pg_edit_group_t * g = pg_stream_get_group (s, group_index); + pg_edit_group_t *g = pg_stream_get_group (s, group_index); g->edit_function = ip4_pg_edit_function; g->edit_function_opaque = 0; if (p->length.type == PG_EDIT_UNSPECIFIED) @@ -379,9 +371,17 @@ found: return 1; } - error: +error: /* Free up any edits we may have added. */ pg_free_edit_group (s); return 0; } + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip4_source_check.c b/vnet/vnet/ip/ip4_source_check.c index f7900d304c2..d461cc885d6 100644 --- a/vnet/vnet/ip/ip4_source_check.c +++ b/vnet/vnet/ip/ip4_source_check.c @@ -50,35 +50,39 @@ */ -typedef struct { +typedef struct +{ u8 packet_data[64]; - index_t urpf; + index_t urpf; } ip4_source_check_trace_t; -static u8 * format_ip4_source_check_trace (u8 * s, va_list * va) +static u8 * +format_ip4_source_check_trace (u8 * s, va_list * va) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*va, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*va, vlib_node_t *); - ip4_source_check_trace_t * t = va_arg (*va, ip4_source_check_trace_t *); + ip4_source_check_trace_t *t = va_arg (*va, ip4_source_check_trace_t *); s = format (s, "%U", - format_ip4_header, - t->packet_data, sizeof (t->packet_data)); + format_ip4_header, t->packet_data, sizeof (t->packet_data)); return s; } -typedef enum { +typedef enum +{ IP4_SOURCE_CHECK_NEXT_DROP, IP4_SOURCE_CHECK_N_NEXT, } ip4_source_check_next_t; -typedef enum { +typedef enum +{ IP4_SOURCE_CHECK_REACHABLE_VIA_RX, IP4_SOURCE_CHECK_REACHABLE_VIA_ANY, } ip4_source_check_type_t; -typedef union { +typedef union +{ u32 fib_index; } ip4_source_check_config_t; @@ -88,9 +92,10 @@ ip4_source_check_inline (vlib_main_t * vm, vlib_frame_t * frame, ip4_source_check_type_t source_check_type) { - u32 n_left_from, * from, * to_next; + u32 n_left_from, *from, *to_next; u32 next_index; - vlib_node_runtime_t * error_node = vlib_node_get_runtime (vm, ip4_input_node.index); + vlib_node_runtime_t *error_node = + vlib_node_get_runtime (vm, ip4_input_node.index); from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; @@ -105,23 +110,22 @@ ip4_source_check_inline (vlib_main_t * vm, { u32 n_left_to_next; - vlib_get_next_frame (vm, node, next_index, - to_next, n_left_to_next); + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); while (n_left_from >= 4 && n_left_to_next >= 2) { - vlib_buffer_t * p0, * p1; - ip4_header_t * ip0, * ip1; - ip4_fib_mtrie_t * mtrie0, * mtrie1; + vlib_buffer_t *p0, *p1; + ip4_header_t *ip0, *ip1; + ip4_fib_mtrie_t *mtrie0, *mtrie1; ip4_fib_mtrie_leaf_t leaf0, leaf1; - ip4_source_check_config_t * c0, * c1; - const load_balance_t * lb0, * lb1; + ip4_source_check_config_t *c0, *c1; + const load_balance_t *lb0, *lb1; u32 pi0, next0, pass0, lb_index0; u32 pi1, next1, pass1, lb_index1; /* Prefetch next iteration. */ { - vlib_buffer_t * p2, * p3; + vlib_buffer_t *p2, *p3; p2 = vlib_get_buffer (vm, from[2]); p3 = vlib_get_buffer (vm, from[3]); @@ -146,68 +150,88 @@ ip4_source_check_inline (vlib_main_t * vm, ip0 = vlib_buffer_get_current (p0); ip1 = vlib_buffer_get_current (p1); - c0 = vnet_feature_next_with_data(vnet_buffer (p0)->sw_if_index[VLIB_RX] , &next0, p0, sizeof (c0[0])); - c1 = vnet_feature_next_with_data(vnet_buffer (p1)->sw_if_index[VLIB_RX] , &next1, p1, sizeof (c1[0])); + c0 = + vnet_feature_next_with_data (vnet_buffer (p0)->sw_if_index + [VLIB_RX], &next0, p0, + sizeof (c0[0])); + c1 = + vnet_feature_next_with_data (vnet_buffer (p1)->sw_if_index + [VLIB_RX], &next1, p1, + sizeof (c1[0])); mtrie0 = &ip4_fib_get (c0->fib_index)->mtrie; mtrie1 = &ip4_fib_get (c1->fib_index)->mtrie; leaf0 = leaf1 = IP4_FIB_MTRIE_LEAF_ROOT; - leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 0); - leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, &ip1->src_address, 0); + leaf0 = + ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 0); + leaf1 = + ip4_fib_mtrie_lookup_step (mtrie1, leaf1, &ip1->src_address, 0); - leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 1); - leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, &ip1->src_address, 1); + leaf0 = + ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 1); + leaf1 = + ip4_fib_mtrie_lookup_step (mtrie1, leaf1, &ip1->src_address, 1); - leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 2); - leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, &ip1->src_address, 2); + leaf0 = + ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 2); + leaf1 = + ip4_fib_mtrie_lookup_step (mtrie1, leaf1, &ip1->src_address, 2); - leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 3); - leaf1 = ip4_fib_mtrie_lookup_step (mtrie1, leaf1, &ip1->src_address, 3); + leaf0 = + ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 3); + leaf1 = + ip4_fib_mtrie_lookup_step (mtrie1, leaf1, &ip1->src_address, 3); lb_index0 = ip4_fib_mtrie_leaf_get_adj_index (leaf0); lb_index1 = ip4_fib_mtrie_leaf_get_adj_index (leaf1); - lb0 = load_balance_get(lb_index0); - lb1 = load_balance_get(lb_index1); + lb0 = load_balance_get (lb_index0); + lb1 = load_balance_get (lb_index1); /* Pass multicast. */ - pass0 = ip4_address_is_multicast (&ip0->src_address) || ip0->src_address.as_u32 == clib_host_to_net_u32(0xFFFFFFFF); - pass1 = ip4_address_is_multicast (&ip1->src_address) || ip1->src_address.as_u32 == clib_host_to_net_u32(0xFFFFFFFF); + pass0 = ip4_address_is_multicast (&ip0->src_address) + || ip0->src_address.as_u32 == clib_host_to_net_u32 (0xFFFFFFFF); + pass1 = ip4_address_is_multicast (&ip1->src_address) + || ip1->src_address.as_u32 == clib_host_to_net_u32 (0xFFFFFFFF); if (IP4_SOURCE_CHECK_REACHABLE_VIA_RX == source_check_type) - { - pass0 |= fib_urpf_check(lb0->lb_urpf, - vnet_buffer (p0)->sw_if_index[VLIB_RX]); - pass1 |= fib_urpf_check(lb1->lb_urpf, - vnet_buffer (p1)->sw_if_index[VLIB_RX]); - } + { + pass0 |= fib_urpf_check (lb0->lb_urpf, + vnet_buffer (p0)->sw_if_index + [VLIB_RX]); + pass1 |= + fib_urpf_check (lb1->lb_urpf, + vnet_buffer (p1)->sw_if_index[VLIB_RX]); + } else - { - pass0 |= fib_urpf_check_size(lb0->lb_urpf); - pass1 |= fib_urpf_check_size(lb1->lb_urpf); - } + { + pass0 |= fib_urpf_check_size (lb0->lb_urpf); + pass1 |= fib_urpf_check_size (lb1->lb_urpf); + } next0 = (pass0 ? next0 : IP4_SOURCE_CHECK_NEXT_DROP); next1 = (pass1 ? next1 : IP4_SOURCE_CHECK_NEXT_DROP); - p0->error = error_node->errors[IP4_ERROR_UNICAST_SOURCE_CHECK_FAILS]; - p1->error = error_node->errors[IP4_ERROR_UNICAST_SOURCE_CHECK_FAILS]; + p0->error = + error_node->errors[IP4_ERROR_UNICAST_SOURCE_CHECK_FAILS]; + p1->error = + error_node->errors[IP4_ERROR_UNICAST_SOURCE_CHECK_FAILS]; vlib_validate_buffer_enqueue_x2 (vm, node, next_index, to_next, n_left_to_next, pi0, pi1, next0, next1); } - + while (n_left_from > 0 && n_left_to_next > 0) { - vlib_buffer_t * p0; - ip4_header_t * ip0; - ip4_fib_mtrie_t * mtrie0; + vlib_buffer_t *p0; + ip4_header_t *ip0; + ip4_fib_mtrie_t *mtrie0; ip4_fib_mtrie_leaf_t leaf0; - ip4_source_check_config_t * c0; + ip4_source_check_config_t *c0; u32 pi0, next0, pass0, lb_index0; - const load_balance_t * lb0; + const load_balance_t *lb0; pi0 = from[0]; to_next[0] = pi0; @@ -219,39 +243,49 @@ ip4_source_check_inline (vlib_main_t * vm, p0 = vlib_get_buffer (vm, pi0); ip0 = vlib_buffer_get_current (p0); - c0 = vnet_feature_next_with_data(vnet_buffer (p0)->sw_if_index[VLIB_RX] , &next0, p0, sizeof (c0[0])); + c0 = + vnet_feature_next_with_data (vnet_buffer (p0)->sw_if_index + [VLIB_RX], &next0, p0, + sizeof (c0[0])); mtrie0 = &ip4_fib_get (c0->fib_index)->mtrie; leaf0 = IP4_FIB_MTRIE_LEAF_ROOT; - leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 0); + leaf0 = + ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 0); - leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 1); + leaf0 = + ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 1); - leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 2); + leaf0 = + ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 2); - leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 3); + leaf0 = + ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 3); lb_index0 = ip4_fib_mtrie_leaf_get_adj_index (leaf0); - lb0 = load_balance_get(lb_index0); + lb0 = load_balance_get (lb_index0); /* Pass multicast. */ - pass0 = ip4_address_is_multicast (&ip0->src_address) || ip0->src_address.as_u32 == clib_host_to_net_u32(0xFFFFFFFF); + pass0 = ip4_address_is_multicast (&ip0->src_address) + || ip0->src_address.as_u32 == clib_host_to_net_u32 (0xFFFFFFFF); if (IP4_SOURCE_CHECK_REACHABLE_VIA_RX == source_check_type) - { - pass0 |= fib_urpf_check(lb0->lb_urpf, - vnet_buffer (p0)->sw_if_index[VLIB_RX]); - } + { + pass0 |= fib_urpf_check (lb0->lb_urpf, + vnet_buffer (p0)->sw_if_index + [VLIB_RX]); + } else - { - pass0 |= fib_urpf_check_size(lb0->lb_urpf); - } + { + pass0 |= fib_urpf_check_size (lb0->lb_urpf); + } next0 = (pass0 ? next0 : IP4_SOURCE_CHECK_NEXT_DROP); - p0->error = error_node->errors[IP4_ERROR_UNICAST_SOURCE_CHECK_FAILS]; + p0->error = + error_node->errors[IP4_ERROR_UNICAST_SOURCE_CHECK_FAILS]; vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, n_left_to_next, @@ -269,17 +303,20 @@ ip4_source_check_reachable_via_any (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { - return ip4_source_check_inline (vm, node, frame, IP4_SOURCE_CHECK_REACHABLE_VIA_ANY); + return ip4_source_check_inline (vm, node, frame, + IP4_SOURCE_CHECK_REACHABLE_VIA_ANY); } static uword ip4_source_check_reachable_via_rx (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) + vlib_node_runtime_t * node, + vlib_frame_t * frame) { - return ip4_source_check_inline (vm, node, frame, IP4_SOURCE_CHECK_REACHABLE_VIA_RX); + return ip4_source_check_inline (vm, node, frame, + IP4_SOURCE_CHECK_REACHABLE_VIA_RX); } +/* *INDENT-OFF* */ VLIB_REGISTER_NODE (ip4_check_source_reachable_via_any) = { .function = ip4_source_check_reachable_via_any, .name = "ip4-source-check-via-any", @@ -293,10 +330,12 @@ VLIB_REGISTER_NODE (ip4_check_source_reachable_via_any) = { .format_buffer = format_ip4_header, .format_trace = format_ip4_source_check_trace, }; +/* *INDENT-ON* */ VLIB_NODE_FUNCTION_MULTIARCH (ip4_check_source_reachable_via_any, - ip4_source_check_reachable_via_any) + ip4_source_check_reachable_via_any); +/* *INDENT-OFF* */ VLIB_REGISTER_NODE (ip4_check_source_reachable_via_rx) = { .function = ip4_source_check_reachable_via_rx, .name = "ip4-source-check-via-rx", @@ -310,39 +349,40 @@ VLIB_REGISTER_NODE (ip4_check_source_reachable_via_rx) = { .format_buffer = format_ip4_header, .format_trace = format_ip4_source_check_trace, }; +/* *INDENT-ON* */ VLIB_NODE_FUNCTION_MULTIARCH (ip4_check_source_reachable_via_rx, - ip4_source_check_reachable_via_rx) + ip4_source_check_reachable_via_rx); static clib_error_t * set_ip_source_check (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, vlib_cli_command_t * cmd) { - unformat_input_t _line_input, * line_input = &_line_input; - vnet_main_t * vnm = vnet_get_main(); - ip4_main_t * im = &ip4_main; - clib_error_t * error = 0; + unformat_input_t _line_input, *line_input = &_line_input; + vnet_main_t *vnm = vnet_get_main (); + ip4_main_t *im = &ip4_main; + clib_error_t *error = 0; u32 sw_if_index, is_del; ip4_source_check_config_t config; - char * feature_name = "ip4-source-check-via-rx"; + char *feature_name = "ip4-source-check-via-rx"; sw_if_index = ~0; is_del = 0; - if (! unformat_user (input, unformat_line_input, line_input)) + if (!unformat_user (input, unformat_line_input, line_input)) return 0; while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { - if (unformat_user (line_input, unformat_vnet_sw_interface, vnm, &sw_if_index)) - ; + if (unformat_user + (line_input, unformat_vnet_sw_interface, vnm, &sw_if_index)) + ; else if (unformat (line_input, "del")) - is_del = 1; + is_del = 1; else if (unformat (line_input, "loose")) feature_name = "ip4-source-check-via-any"; else - { + { error = unformat_parse_error (line_input); goto done; } @@ -358,7 +398,7 @@ set_ip_source_check (vlib_main_t * vm, config.fib_index = im->fib_index_by_sw_if_index[sw_if_index]; vnet_feature_enable_disable ("ip4-unicast", feature_name, sw_if_index, is_del == 0, &config, sizeof (config)); - done: +done: return error; } @@ -429,21 +469,20 @@ VLIB_CLI_COMMAND (set_interface_ip_source_check_command, static) = { static clib_error_t * ip_source_check_accept (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, vlib_cli_command_t * cmd) { - unformat_input_t _line_input, * line_input = &_line_input; + unformat_input_t _line_input, *line_input = &_line_input; fib_prefix_t pfx = { - .fp_proto = FIB_PROTOCOL_IP4, + .fp_proto = FIB_PROTOCOL_IP4, }; - clib_error_t * error = NULL; + clib_error_t *error = NULL; u32 table_id, is_add, fib_index; is_add = 1; table_id = ~0; /* Get a line of input. */ - if (! unformat_user (input, unformat_line_input, line_input)) + if (!unformat_user (input, unformat_line_input, line_input)) return 0; while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) @@ -455,25 +494,21 @@ ip_source_check_accept (vlib_main_t * vm, else if (unformat (line_input, "add")) is_add = 1; else if (unformat (line_input, "%U/%d", - unformat_ip4_address, - &pfx.fp_addr.ip4, - &pfx.fp_len)) - pfx.fp_proto = FIB_PROTOCOL_IP4; + unformat_ip4_address, &pfx.fp_addr.ip4, &pfx.fp_len)) + pfx.fp_proto = FIB_PROTOCOL_IP4; else - { + { error = unformat_parse_error (line_input); goto done; - } + } } if (~0 != table_id) { - fib_index = fib_table_id_find_fib_index(pfx.fp_proto, table_id); + fib_index = fib_table_id_find_fib_index (pfx.fp_proto, table_id); if (~0 == fib_index) - { - error = clib_error_return (0, - "Nonexistent table id %d", - table_id); + { + error = clib_error_return (0, "Nonexistent table id %d", table_id); goto done; } } @@ -484,18 +519,16 @@ ip_source_check_accept (vlib_main_t * vm, if (is_add) { - fib_table_entry_special_add(fib_index, - &pfx, - FIB_SOURCE_URPF_EXEMPT, - FIB_ENTRY_FLAG_DROP, - ADJ_INDEX_INVALID); + fib_table_entry_special_add (fib_index, + &pfx, + FIB_SOURCE_URPF_EXEMPT, + FIB_ENTRY_FLAG_DROP, ADJ_INDEX_INVALID); } else - { - fib_table_entry_special_remove(fib_index, - &pfx, - FIB_SOURCE_URPF_EXEMPT); - } + { + fib_table_entry_special_remove (fib_index, + &pfx, FIB_SOURCE_URPF_EXEMPT); + } done: return (error); @@ -523,7 +556,18 @@ VLIB_CLI_COMMAND (ip_source_check_accept_command, static) = { /* Dummy init function to get us linked in. */ -clib_error_t * ip4_source_check_init (vlib_main_t * vm) -{ return 0; } +clib_error_t * +ip4_source_check_init (vlib_main_t * vm) +{ + return 0; +} VLIB_INIT_FUNCTION (ip4_source_check_init); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip4_test.c b/vnet/vnet/ip/ip4_test.c index f97a06525b1..45d171130df 100644 --- a/vnet/vnet/ip/ip4_test.c +++ b/vnet/vnet/ip/ip4_test.c @@ -22,35 +22,36 @@ * Not compiled in by default. IPv4 FIB tester. Add, probe, delete a bunch of * random routes / masks and make sure that the mtrie agrees with * the hash-table FIB. - * + * * Manipulate the FIB by means of the debug CLI commands, to minimize * the chances of doing something idiotic. */ -/* +/* * These routines need to be redeclared non-static elsewhere. * * Also: rename ip_route() -> vnet_ip_route_cmd() and add the usual * test_route_init() call to main.c */ -clib_error_t * -vnet_ip_route_cmd (vlib_main_t * vm, - unformat_input_t * input, vlib_cli_command_t * cmd_arg); +clib_error_t *vnet_ip_route_cmd (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd_arg); -int ip4_lookup_validate (ip4_address_t *a, u32 fib_index0); +int ip4_lookup_validate (ip4_address_t * a, u32 fib_index0); -ip4_fib_t * -find_fib_by_table_index_or_id (ip4_main_t * im, u32 table_index_or_id, - u32 flags); +ip4_fib_t *find_fib_by_table_index_or_id (ip4_main_t * im, + u32 table_index_or_id, u32 flags); /* Routes to insert/delete/probe in FIB */ -typedef struct { +typedef struct +{ ip4_address_t address; u32 mask_width; - u32 interface_id; /* not an xx_if_index */ + u32 interface_id; /* not an xx_if_index */ } test_route_t; -typedef struct { +typedef struct +{ /* Test routes in use */ test_route_t *route_pool; @@ -61,29 +62,32 @@ typedef struct { test_main_t test_main; /* fake ethernet device class, distinct from "fake-ethX" */ -static u8 * format_test_interface_name (u8 * s, va_list * args) +static u8 * +format_test_interface_name (u8 * s, va_list * args) { u32 dev_instance = va_arg (*args, u32); return format (s, "test-eth%d", dev_instance); } -static uword dummy_interface_tx (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) +static uword +dummy_interface_tx (vlib_main_t * vm, + vlib_node_runtime_t * node, vlib_frame_t * frame) { clib_warning ("you shouldn't be here, leaking buffers..."); return frame->n_vectors; } +/* *INDENT-OFF* */ VNET_DEVICE_CLASS (test_interface_device_class,static) = { .name = "Test interface", .format_device_name = format_test_interface_name, .tx_function = dummy_interface_tx, }; +/* *INDENT-ON* */ static clib_error_t * -thrash (vlib_main_t * vm, - unformat_input_t * main_input, vlib_cli_command_t * cmd_arg) +thrash (vlib_main_t * vm, + unformat_input_t * main_input, vlib_cli_command_t * cmd_arg) { u32 seed = 0xdeaddabe; u32 niter = 10; @@ -91,57 +95,57 @@ thrash (vlib_main_t * vm, u32 ninterfaces = 4; f64 min_mask_bits = 7.0; f64 max_mask_bits = 32.0; - u32 table_id = 11; /* my amp goes to 11 (use fib 11) */ + u32 table_id = 11; /* my amp goes to 11 (use fib 11) */ u32 table_index; int iter, i; - u8 * cmd; + u8 *cmd; test_route_t *tr; test_main_t *tm = &test_main; - ip4_main_t * im = &ip4_main; - vnet_main_t * vnm = vnet_get_main(); + ip4_main_t *im = &ip4_main; + vnet_main_t *vnm = vnet_get_main (); unformat_input_t cmd_input; f64 rf; u32 *masks = 0; u32 tmp; u32 hw_if_index; - clib_error_t * error = 0; + clib_error_t *error = 0; uword *p; - unformat_input_t _line_input, * line_input = &_line_input; + unformat_input_t _line_input, *line_input = &_line_input; u8 hw_address[6]; - ip4_fib_t * fib; + ip4_fib_t *fib; int verbose = 0; /* Precompute mask width -> mask vector */ - tmp = (u32)~0; + tmp = (u32) ~ 0; vec_validate (masks, 32); for (i = 32; i > 0; i--) { - masks [i] = tmp; + masks[i] = tmp; tmp <<= 1; } if (unformat_user (main_input, unformat_line_input, line_input)) { while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) - { - if (unformat (line_input, "seed %d", &seed)) - ; - else if (unformat (line_input, "niter %d", &niter)) - ; - else if (unformat (line_input, "nroutes %d", &nroutes)) - ; - else if (unformat (line_input, "ninterfaces %d", &ninterfaces)) - ; - else if (unformat (line_input, "min-mask-bits %d", &tmp)) - min_mask_bits = (f64) tmp; - else if (unformat (line_input, "max-mask-bits %d", &tmp)) - max_mask_bits = (f64) tmp; - else if (unformat (line_input, "verbose")) - verbose = 1; - else - return clib_error_return (0, "unknown input `%U'", - format_unformat_error, line_input); - } + { + if (unformat (line_input, "seed %d", &seed)) + ; + else if (unformat (line_input, "niter %d", &niter)) + ; + else if (unformat (line_input, "nroutes %d", &nroutes)) + ; + else if (unformat (line_input, "ninterfaces %d", &ninterfaces)) + ; + else if (unformat (line_input, "min-mask-bits %d", &tmp)) + min_mask_bits = (f64) tmp; + else if (unformat (line_input, "max-mask-bits %d", &tmp)) + max_mask_bits = (f64) tmp; + else if (unformat (line_input, "verbose")) + verbose = 1; + else + return clib_error_return (0, "unknown input `%U'", + format_unformat_error, line_input); + } } /* Find or create FIB table 11 */ @@ -149,25 +153,22 @@ thrash (vlib_main_t * vm, for (i = tm->test_interfaces_created; i < ninterfaces; i++) { - vnet_hw_interface_t * hw; + vnet_hw_interface_t *hw; memset (hw_address, 0, sizeof (hw_address)); hw_address[0] = 0xd0; hw_address[1] = 0x0f; hw_address[5] = i; error = ethernet_register_interface - (vnm, - test_interface_device_class.index, - i /* instance */, - hw_address, - &hw_if_index, - /* flag change */ 0); - + (vnm, test_interface_device_class.index, i /* instance */ , + hw_address, &hw_if_index, + /* flag change */ 0); + /* Fake interfaces use FIB table 11 */ hw = vnet_get_hw_interface (vnm, hw_if_index); vec_validate (im->fib_index_by_sw_if_index, hw->sw_if_index); im->fib_index_by_sw_if_index[hw->sw_if_index] = fib->index; - ip4_sw_interface_enable_disable(sw_if_index, 1); + ip4_sw_interface_enable_disable (sw_if_index, 1); } tm->test_interfaces_created = ninterfaces; @@ -176,8 +177,7 @@ thrash (vlib_main_t * vm, p = hash_get (im->fib_index_by_table_id, table_id); if (p == 0) { - vlib_cli_output (vm, "Couldn't map fib id %d to fib index\n", - table_id); + vlib_cli_output (vm, "Couldn't map fib id %d to fib index\n", table_id); return 0; } table_index = p[0]; @@ -186,115 +186,111 @@ thrash (vlib_main_t * vm, { /* Pick random routes to install */ for (i = 0; i < nroutes; i++) - { - int j; - - pool_get (tm->route_pool, tr); - memset (tr, 0, sizeof (*tr)); - - again: - rf = random_f64 (&seed); - tr->mask_width = (u32) (min_mask_bits - + rf * (max_mask_bits - min_mask_bits)); - tmp = random_u32 (&seed); - tmp &= masks[tr->mask_width]; - tr->address.as_u32 = clib_host_to_net_u32(tmp); - - /* We can't add the same address/mask twice... */ - for (j = 0; j < i; j++) - { - test_route_t *prev; - prev = pool_elt_at_index (tm->route_pool, j); - if ((prev->address.as_u32 == tr->address.as_u32) - && (prev->mask_width == tr->mask_width)) - goto again; - } - - rf = random_f64 (&seed); - tr->interface_id = (u32) (rf * ninterfaces); - } - + { + int j; + + pool_get (tm->route_pool, tr); + memset (tr, 0, sizeof (*tr)); + + again: + rf = random_f64 (&seed); + tr->mask_width = (u32) (min_mask_bits + + rf * (max_mask_bits - min_mask_bits)); + tmp = random_u32 (&seed); + tmp &= masks[tr->mask_width]; + tr->address.as_u32 = clib_host_to_net_u32 (tmp); + + /* We can't add the same address/mask twice... */ + for (j = 0; j < i; j++) + { + test_route_t *prev; + prev = pool_elt_at_index (tm->route_pool, j); + if ((prev->address.as_u32 == tr->address.as_u32) + && (prev->mask_width == tr->mask_width)) + goto again; + } + + rf = random_f64 (&seed); + tr->interface_id = (u32) (rf * ninterfaces); + } + /* Add them */ for (i = 0; i < nroutes; i++) - { - tr = pool_elt_at_index (tm->route_pool, i); - cmd = format (0, "add table %d %U/%d via test-eth%d", - table_id, - format_ip4_address, &tr->address, - tr->mask_width, tr->interface_id); - vec_add1(cmd,0); - if (verbose) - fformat(stderr, "ip route %s\n", cmd); - unformat_init_string (&cmd_input, (char *) cmd, vec_len(cmd)-1); - error = vnet_ip_route_cmd (vm, &cmd_input, cmd_arg); - if (error) - clib_error_report(error); - unformat_free (&cmd_input); - vec_free(cmd); - } + { + tr = pool_elt_at_index (tm->route_pool, i); + cmd = format (0, "add table %d %U/%d via test-eth%d", + table_id, + format_ip4_address, &tr->address, + tr->mask_width, tr->interface_id); + vec_add1 (cmd, 0); + if (verbose) + fformat (stderr, "ip route %s\n", cmd); + unformat_init_string (&cmd_input, (char *) cmd, vec_len (cmd) - 1); + error = vnet_ip_route_cmd (vm, &cmd_input, cmd_arg); + if (error) + clib_error_report (error); + unformat_free (&cmd_input); + vec_free (cmd); + } /* Probe them */ for (i = 0; i < nroutes; i++) - { - tr = pool_elt_at_index (tm->route_pool, i); - if (!ip4_lookup_validate (&tr->address, table_index)) - { - if (verbose) - fformat (stderr, "test lookup table %d %U\n", - table_index, format_ip4_address, &tr->address); - - fformat (stderr, "FAIL-after-insert: %U/%d\n", - format_ip4_address, &tr->address, - tr->mask_width); - } - } + { + tr = pool_elt_at_index (tm->route_pool, i); + if (!ip4_lookup_validate (&tr->address, table_index)) + { + if (verbose) + fformat (stderr, "test lookup table %d %U\n", + table_index, format_ip4_address, &tr->address); + + fformat (stderr, "FAIL-after-insert: %U/%d\n", + format_ip4_address, &tr->address, tr->mask_width); + } + } /* Delete them */ for (i = 0; i < nroutes; i++) - { - int j; - tr = pool_elt_at_index (tm->route_pool, i); - if (0) - cmd = format (0, "del table %d %U/%d via test-eth%d", - table_id, - format_ip4_address, &tr->address, - tr->mask_width, tr->interface_id); - else - cmd = format (0, "del table %d %U/%d", - table_id, - format_ip4_address, &tr->address, - tr->mask_width); - vec_add1(cmd,0); - if (verbose) - fformat(stderr, "ip route %s\n", cmd); - unformat_init_string (&cmd_input, (char *) cmd, vec_len(cmd)-1); - error = vnet_ip_route_cmd (vm, &cmd_input, cmd_arg); - if (error) - clib_error_report(error); - unformat_free (&cmd_input); - vec_free(cmd); - - /* Make sure all undeleted routes still work */ - for (j = i+1; j < nroutes; j++) - { - test_route_t *rr; /* remaining route */ - rr = pool_elt_at_index (tm->route_pool, j); - if (!ip4_lookup_validate (&rr->address, table_index)) - { - if (verbose) - fformat (stderr, "test lookup table %d %U\n", - table_index, format_ip4_address, &rr->address); - - fformat (stderr, "FAIL: %U/%d AWOL\n", - format_ip4_address, &rr->address, - rr->mask_width); - fformat (stderr, " iter %d after %d of %d deletes\n", - iter, i, nroutes); - fformat (stderr, " last route deleted %U/%d\n", - format_ip4_address, &tr->address, - tr->mask_width); - } - } - } + { + int j; + tr = pool_elt_at_index (tm->route_pool, i); + if (0) + cmd = format (0, "del table %d %U/%d via test-eth%d", + table_id, + format_ip4_address, &tr->address, + tr->mask_width, tr->interface_id); + else + cmd = format (0, "del table %d %U/%d", + table_id, + format_ip4_address, &tr->address, tr->mask_width); + vec_add1 (cmd, 0); + if (verbose) + fformat (stderr, "ip route %s\n", cmd); + unformat_init_string (&cmd_input, (char *) cmd, vec_len (cmd) - 1); + error = vnet_ip_route_cmd (vm, &cmd_input, cmd_arg); + if (error) + clib_error_report (error); + unformat_free (&cmd_input); + vec_free (cmd); + + /* Make sure all undeleted routes still work */ + for (j = i + 1; j < nroutes; j++) + { + test_route_t *rr; /* remaining route */ + rr = pool_elt_at_index (tm->route_pool, j); + if (!ip4_lookup_validate (&rr->address, table_index)) + { + if (verbose) + fformat (stderr, "test lookup table %d %U\n", + table_index, format_ip4_address, &rr->address); + + fformat (stderr, "FAIL: %U/%d AWOL\n", + format_ip4_address, &rr->address, rr->mask_width); + fformat (stderr, " iter %d after %d of %d deletes\n", + iter, i, nroutes); + fformat (stderr, " last route deleted %U/%d\n", + format_ip4_address, &tr->address, tr->mask_width); + } + } + } pool_free (tm->route_pool); } @@ -327,9 +323,18 @@ VLIB_CLI_COMMAND (test_route_command, static) = { }; /* *INDENT-ON* */ -clib_error_t *test_route_init (vlib_main_t *vm) +clib_error_t * +test_route_init (vlib_main_t * vm) { return 0; } VLIB_INIT_FUNCTION (test_route_init); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip6.h b/vnet/vnet/ip/ip6.h index 428a16f60aa..586b7c1b7f2 100644 --- a/vnet/vnet/ip/ip6.h +++ b/vnet/vnet/ip/ip6.h @@ -56,13 +56,15 @@ #define IP6_FIB_DEFAULT_HASH_NUM_BUCKETS (64 * 1024) #define IP6_FIB_DEFAULT_HASH_MEMORY_SIZE (32<<20) -typedef struct { +typedef struct +{ ip6_address_t addr; u32 dst_address_length; u32 vrf_index; } ip6_fib_key_t; -typedef struct { +typedef struct +{ /* Table ID (hash key) for this FIB. */ u32 table_id; @@ -80,31 +82,31 @@ typedef void (ip6_add_del_interface_address_function_t) uword opaque, u32 sw_if_index, ip6_address_t * address, - u32 address_length, - u32 if_address_index, - u32 is_del); + u32 address_length, u32 if_address_index, u32 is_del); -typedef struct { - ip6_add_del_interface_address_function_t * function; +typedef struct +{ + ip6_add_del_interface_address_function_t *function; uword function_opaque; } ip6_add_del_interface_address_callback_t; /** * Enumeration of the FIB table instance types */ -typedef enum ip6_fib_table_instance_type_t_ { +typedef enum ip6_fib_table_instance_type_t_ +{ /** * This table stores the routes that are used to forward traffic. * The key is the prefix, the result the adjacnecy to forward on. */ - IP6_FIB_TABLE_FWDING, + IP6_FIB_TABLE_FWDING, /** * The table that stores ALL routes learned by the DP. * Some of these routes may not be ready to install in forwarding * at a given time. * The key in this table is the prefix, the result is the fib_entry_t */ - IP6_FIB_TABLE_NON_FWDING, + IP6_FIB_TABLE_NON_FWDING, } ip6_fib_table_instance_type_t; #define IP6_FIB_NUM_TABLES (IP6_FIB_TABLE_NON_FWDING+1) @@ -112,17 +114,19 @@ typedef enum ip6_fib_table_instance_type_t_ { /** * A represenation of a single IP6 table */ -typedef struct ip6_fib_table_instance_t_ { +typedef struct ip6_fib_table_instance_t_ +{ /* The hash table */ - BVT(clib_bihash) ip6_hash; + BVT (clib_bihash) ip6_hash; /* bitmap / refcounts / vector of mask widths to search */ - uword * non_empty_dst_address_length_bitmap; - u8 * prefix_lengths_in_search_order; + uword *non_empty_dst_address_length_bitmap; + u8 *prefix_lengths_in_search_order; i32 dst_address_length_refcounts[129]; } ip6_fib_table_instance_t; -typedef struct ip6_main_t { +typedef struct ip6_main_t +{ /** * The two FIB tables; fwding and non-fwding */ @@ -131,26 +135,27 @@ typedef struct ip6_main_t { ip_lookup_main_t lookup_main; /* Pool of FIBs. */ - struct fib_table_t_ * fibs; + struct fib_table_t_ *fibs; /* Network byte orders subnet mask for each prefix length */ ip6_address_t fib_masks[129]; /* Table index indexed by software interface. */ - u32 * fib_index_by_sw_if_index; + u32 *fib_index_by_sw_if_index; /* IP6 enabled count by software interface */ - u8 * ip_enabled_by_sw_if_index; + u8 *ip_enabled_by_sw_if_index; /* Hash table mapping table id to fib index. ID space is not necessarily dense; index space is dense. */ - uword * fib_index_by_table_id; + uword *fib_index_by_table_id; /* Hash table mapping interface rewrite adjacency index by sw if index. */ - uword * interface_route_adj_index_by_sw_if_index; + uword *interface_route_adj_index_by_sw_if_index; /* Functions to call when interface address changes. */ - ip6_add_del_interface_address_callback_t * add_del_interface_address_callbacks; + ip6_add_del_interface_address_callback_t + * add_del_interface_address_callbacks; /* Template used to generate IP6 neighbor solicitation packets. */ vlib_packet_template_t discover_neighbor_packet_template; @@ -162,7 +167,8 @@ typedef struct ip6_main_t { /* Seed for Jenkins hash used to compute ip6 flow hash. */ u32 flow_hash_seed; - struct { + struct + { /* TTL to use for host generated packets. */ u8 ttl; @@ -187,13 +193,16 @@ extern vlib_node_registration_t ip6_midchain_node; extern vlib_node_registration_t ip6_icmp_neighbor_discovery_event_node; /* ipv6 neighbor discovery - timer/event types */ -typedef enum { +typedef enum +{ ICMP6_ND_EVENT_INIT, } ip6_icmp_neighbor_discovery_event_type_t; -typedef union { +typedef union +{ u32 add_del_swindex; - struct { + struct + { u32 up_down_swindex; u32 fib_index; } up_down_event; @@ -202,13 +211,13 @@ typedef union { always_inline uword ip6_destination_matches_route (const ip6_main_t * im, const ip6_address_t * key, - const ip6_address_t * dest, - uword dest_length) + const ip6_address_t * dest, uword dest_length) { int i; for (i = 0; i < ARRAY_LEN (key->as_uword); i++) { - if ((key->as_uword[i] ^ dest->as_uword[i]) & im->fib_masks[dest_length].as_uword[i]) + if ((key->as_uword[i] ^ dest->as_uword[i]) & im-> + fib_masks[dest_length].as_uword[i]) return 0; } return 1; @@ -219,7 +228,7 @@ ip6_destination_matches_interface (ip6_main_t * im, ip6_address_t * key, ip_interface_address_t * ia) { - ip6_address_t * a = ip_interface_address_get_address (&im->lookup_main, ia); + ip6_address_t *a = ip_interface_address_get_address (&im->lookup_main, ia); return ip6_destination_matches_route (im, key, a, ia->address_length); } @@ -233,7 +242,8 @@ ip6_unaligned_destination_matches_route (ip6_main_t * im, int i; for (i = 0; i < ARRAY_LEN (key->as_uword); i++) { - if ((clib_mem_unaligned (&key->as_uword[i], uword) ^ dest->as_uword[i]) & im->fib_masks[dest_length].as_uword[i]) + if ((clib_mem_unaligned (&key->as_uword[i], uword) ^ dest->as_uword[i]) + & im->fib_masks[dest_length].as_uword[i]) return 0; } return 1; @@ -241,36 +251,38 @@ ip6_unaligned_destination_matches_route (ip6_main_t * im, always_inline int ip6_src_address_for_packet (ip_lookup_main_t * lm, - u32 sw_if_index, - ip6_address_t * src) + u32 sw_if_index, ip6_address_t * src) { - u32 if_add_index = - lm->if_address_pool_index_by_sw_if_index[sw_if_index]; - if (PREDICT_TRUE(if_add_index != ~0)) { - ip_interface_address_t *if_add = - pool_elt_at_index(lm->if_address_pool, if_add_index); - ip6_address_t *if_ip = - ip_interface_address_get_address(lm, if_add); - *src = *if_ip; - return (0); + u32 if_add_index = lm->if_address_pool_index_by_sw_if_index[sw_if_index]; + if (PREDICT_TRUE (if_add_index != ~0)) + { + ip_interface_address_t *if_add = + pool_elt_at_index (lm->if_address_pool, if_add_index); + ip6_address_t *if_ip = ip_interface_address_get_address (lm, if_add); + *src = *if_ip; + return (0); } - else + else { - src->as_u64[0] = 0; - src->as_u64[1] = 0; + src->as_u64[0] = 0; + src->as_u64[1] = 0; } - return (!0); + return (!0); } /* Find interface address which matches destination. */ always_inline ip6_address_t * -ip6_interface_address_matching_destination (ip6_main_t * im, ip6_address_t * dst, u32 sw_if_index, - ip_interface_address_t ** result_ia) +ip6_interface_address_matching_destination (ip6_main_t * im, + ip6_address_t * dst, + u32 sw_if_index, + ip_interface_address_t ** + result_ia) { - ip_lookup_main_t * lm = &im->lookup_main; - ip_interface_address_t * ia; - ip6_address_t * result = 0; + ip_lookup_main_t *lm = &im->lookup_main; + ip_interface_address_t *ia; + ip6_address_t *result = 0; + /* *INDENT-OFF* */ foreach_ip_interface_address (lm, ia, sw_if_index, 1 /* honor unnumbered */, ({ @@ -281,128 +293,115 @@ ip6_interface_address_matching_destination (ip6_main_t * im, ip6_address_t * dst break; } })); + /* *INDENT-ON* */ if (result_ia) *result_ia = result ? ia : 0; return result; } -clib_error_t * -ip6_add_del_interface_address (vlib_main_t * vm, u32 sw_if_index, - ip6_address_t * address, u32 address_length, - u32 is_del); -void -ip6_sw_interface_enable_disable (u32 sw_if_index, - u32 is_enable); +clib_error_t *ip6_add_del_interface_address (vlib_main_t * vm, + u32 sw_if_index, + ip6_address_t * address, + u32 address_length, u32 is_del); +void ip6_sw_interface_enable_disable (u32 sw_if_index, u32 is_enable); int ip6_address_compare (ip6_address_t * a1, ip6_address_t * a2); -clib_error_t * -ip6_probe_neighbor (vlib_main_t * vm, ip6_address_t * dst, u32 sw_if_index); +clib_error_t *ip6_probe_neighbor (vlib_main_t * vm, ip6_address_t * dst, + u32 sw_if_index); -clib_error_t * -ip6_set_neighbor_limit (u32 neighbor_limit); +clib_error_t *ip6_set_neighbor_limit (u32 neighbor_limit); uword ip6_udp_register_listener (vlib_main_t * vm, - u16 dst_port, - u32 next_node_index); + u16 dst_port, u32 next_node_index); -u16 ip6_tcp_udp_icmp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0, ip6_header_t * ip0, int *bogus_lengthp); +u16 ip6_tcp_udp_icmp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0, + ip6_header_t * ip0, + int *bogus_lengthp); void ip6_register_protocol (u32 protocol, u32 node_index); serialize_function_t serialize_vnet_ip6_main, unserialize_vnet_ip6_main; void ip6_ethernet_update_adjacency (vnet_main_t * vnm, - u32 sw_if_index, - u32 ai); + u32 sw_if_index, u32 ai); int vnet_set_ip6_ethernet_neighbor (vlib_main_t * vm, - u32 sw_if_index, - ip6_address_t * a, - u8 * link_layer_address, - uword n_bytes_link_layer_address, - int is_static); + u32 sw_if_index, + ip6_address_t * a, + u8 * link_layer_address, + uword n_bytes_link_layer_address, + int is_static); int vnet_unset_ip6_ethernet_neighbor (vlib_main_t * vm, - u32 sw_if_index, - ip6_address_t * a, - u8 * link_layer_address, - uword n_bytes_link_layer_address); + u32 sw_if_index, + ip6_address_t * a, + u8 * link_layer_address, + uword n_bytes_link_layer_address); void -ip6_link_local_address_from_ethernet_mac_address (ip6_address_t *ip, - u8 *mac); +ip6_link_local_address_from_ethernet_mac_address (ip6_address_t * ip, + u8 * mac); void -ip6_ethernet_mac_address_from_link_local_address (u8 *mac, - ip6_address_t *ip); +ip6_ethernet_mac_address_from_link_local_address (u8 * mac, + ip6_address_t * ip); int vnet_set_ip6_flow_hash (u32 table_id, flow_hash_config_t flow_hash_config); int -ip6_neighbor_ra_config(vlib_main_t * vm, u32 sw_if_index, - u8 suppress, u8 managed, u8 other, - u8 ll_option, u8 send_unicast, u8 cease, - u8 use_lifetime, u32 lifetime, - u32 initial_count, u32 initial_interval, - u32 max_interval, u32 min_interval, - u8 is_no); +ip6_neighbor_ra_config (vlib_main_t * vm, u32 sw_if_index, + u8 suppress, u8 managed, u8 other, + u8 ll_option, u8 send_unicast, u8 cease, + u8 use_lifetime, u32 lifetime, + u32 initial_count, u32 initial_interval, + u32 max_interval, u32 min_interval, u8 is_no); int -ip6_neighbor_ra_prefix(vlib_main_t * vm, u32 sw_if_index, - ip6_address_t *prefix_addr, u8 prefix_len, - u8 use_default, u32 val_lifetime, u32 pref_lifetime, - u8 no_advertise, u8 off_link, u8 no_autoconfig, u8 no_onlink, - u8 is_no); +ip6_neighbor_ra_prefix (vlib_main_t * vm, u32 sw_if_index, + ip6_address_t * prefix_addr, u8 prefix_len, + u8 use_default, u32 val_lifetime, u32 pref_lifetime, + u8 no_advertise, u8 off_link, u8 no_autoconfig, + u8 no_onlink, u8 is_no); -clib_error_t * -enable_ip6_interface(vlib_main_t * vm, - u32 sw_if_index); +clib_error_t *enable_ip6_interface (vlib_main_t * vm, u32 sw_if_index); -clib_error_t * -disable_ip6_interface(vlib_main_t * vm, - u32 sw_if_index); +clib_error_t *disable_ip6_interface (vlib_main_t * vm, u32 sw_if_index); -int -ip6_interface_enabled(vlib_main_t * vm, - u32 sw_if_index); +int ip6_interface_enabled (vlib_main_t * vm, u32 sw_if_index); -clib_error_t * -set_ip6_link_local_address(vlib_main_t * vm, - u32 sw_if_index, - ip6_address_t *address, - u8 address_length); +clib_error_t *set_ip6_link_local_address (vlib_main_t * vm, + u32 sw_if_index, + ip6_address_t * address, + u8 address_length); -void vnet_register_ip6_neighbor_resolution_event(vnet_main_t * vnm, - void * address_arg, - uword node_index, - uword type_opaque, - uword data); +void vnet_register_ip6_neighbor_resolution_event (vnet_main_t * vnm, + void *address_arg, + uword node_index, + uword type_opaque, + uword data); int vnet_add_del_ip6_nd_change_event (vnet_main_t * vnm, - void * data_callback, + void *data_callback, u32 pid, - void * address_arg, + void *address_arg, uword node_index, uword type_opaque, - uword data, - int is_add); + uword data, int is_add); int vnet_ip6_nd_term (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_buffer_t * p0, ethernet_header_t * eth, ip6_header_t * ip, - u32 sw_if_index, - u16 bd_index, - u8 shg); + u32 sw_if_index, u16 bd_index, u8 shg); int vnet_set_ip6_classify_intfc (vlib_main_t * vm, u32 sw_if_index, - u32 table_index); + u32 table_index); extern vlib_node_registration_t ip6_lookup_node; /* Compute flow hash. We'll use it to select which Sponge to use for this @@ -411,50 +410,55 @@ always_inline u32 ip6_compute_flow_hash (const ip6_header_t * ip, flow_hash_config_t flow_hash_config) { - tcp_header_t * tcp = (void *) (ip + 1); - u64 a, b, c; - u64 t1, t2; - uword is_tcp_udp = (ip->protocol == IP_PROTOCOL_TCP - || ip->protocol == IP_PROTOCOL_UDP); + tcp_header_t *tcp = (void *) (ip + 1); + u64 a, b, c; + u64 t1, t2; + uword is_tcp_udp = (ip->protocol == IP_PROTOCOL_TCP + || ip->protocol == IP_PROTOCOL_UDP); - t1 = (ip->src_address.as_u64[0] ^ ip->src_address.as_u64[1]); - t1 = (flow_hash_config & IP_FLOW_HASH_SRC_ADDR) ? t1 : 0; + t1 = (ip->src_address.as_u64[0] ^ ip->src_address.as_u64[1]); + t1 = (flow_hash_config & IP_FLOW_HASH_SRC_ADDR) ? t1 : 0; - t2 = (ip->dst_address.as_u64[0] ^ ip->dst_address.as_u64[1]); - t2 = (flow_hash_config & IP_FLOW_HASH_DST_ADDR) ? t2 : 0; + t2 = (ip->dst_address.as_u64[0] ^ ip->dst_address.as_u64[1]); + t2 = (flow_hash_config & IP_FLOW_HASH_DST_ADDR) ? t2 : 0; - a = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? t2 : t1; - b = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? t1 : t2; - b ^= (flow_hash_config & IP_FLOW_HASH_PROTO) ? ip->protocol : 0; + a = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? t2 : t1; + b = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? t1 : t2; + b ^= (flow_hash_config & IP_FLOW_HASH_PROTO) ? ip->protocol : 0; - t1 = is_tcp_udp ? tcp->ports.src : 0; - t2 = is_tcp_udp ? tcp->ports.dst : 0; + t1 = is_tcp_udp ? tcp->ports.src : 0; + t2 = is_tcp_udp ? tcp->ports.dst : 0; - t1 = (flow_hash_config & IP_FLOW_HASH_SRC_PORT) ? t1 : 0; - t2 = (flow_hash_config & IP_FLOW_HASH_DST_PORT) ? t2 : 0; + t1 = (flow_hash_config & IP_FLOW_HASH_SRC_PORT) ? t1 : 0; + t2 = (flow_hash_config & IP_FLOW_HASH_DST_PORT) ? t2 : 0; - c = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? - ((t1<<16) | t2) : ((t2<<16) | t1); + c = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? + ((t1 << 16) | t2) : ((t2 << 16) | t1); - hash_mix64 (a, b, c); - return (u32) c; + hash_mix64 (a, b, c); + return (u32) c; } /* * Hop-by-Hop handling */ -typedef struct { +typedef struct +{ /* Array of function pointers to HBH option handling routines */ - int (*options[256])(vlib_buffer_t *b, ip6_header_t *ip, ip6_hop_by_hop_option_t *opt); - u8 *(*trace[256])(u8 *s, ip6_hop_by_hop_option_t *opt); + int (*options[256]) (vlib_buffer_t * b, ip6_header_t * ip, + ip6_hop_by_hop_option_t * opt); + u8 *(*trace[256]) (u8 * s, ip6_hop_by_hop_option_t * opt); uword next_override; } ip6_hop_by_hop_main_t; extern ip6_hop_by_hop_main_t ip6_hop_by_hop_main; int ip6_hbh_register_option (u8 option, - int options(vlib_buffer_t *b, ip6_header_t *ip, ip6_hop_by_hop_option_t *opt), - u8 *trace(u8 *s, ip6_hop_by_hop_option_t *opt)); + int options (vlib_buffer_t * b, + ip6_header_t * ip, + ip6_hop_by_hop_option_t * opt), + u8 * trace (u8 * s, + ip6_hop_by_hop_option_t * opt)); int ip6_hbh_unregister_option (u8 option); void ip6_hbh_set_next_override (uword next); @@ -462,3 +466,11 @@ void ip6_hbh_set_next_override (uword next); #define OI_DECAP 0x80000000 #endif /* included_ip_ip6_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip6_error.h b/vnet/vnet/ip/ip6_error.h index c28cda20f57..a2807169123 100644 --- a/vnet/vnet/ip/ip6_error.h +++ b/vnet/vnet/ip/ip6_error.h @@ -73,11 +73,20 @@ _ (INACL_TABLE_MISS, "input ACL table-miss drops") \ _ (INACL_SESSION_DENY, "input ACL session deny drops") -typedef enum { +typedef enum +{ #define _(sym,str) IP6_ERROR_##sym, foreach_ip6_error #undef _ - IP6_N_ERROR, + IP6_N_ERROR, } ip6_error_t; #endif /* included_ip_ip6_error_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip6_format.c b/vnet/vnet/ip/ip6_format.c index 5d32189478b..56899b73d8b 100644 --- a/vnet/vnet/ip/ip6_format.c +++ b/vnet/vnet/ip/ip6_format.c @@ -40,11 +40,12 @@ #include <vnet/ip/ip.h> /* Format an IP6 address. */ -u8 * format_ip6_address (u8 * s, va_list * args) +u8 * +format_ip6_address (u8 * s, va_list * args) { - ip6_address_t * a = va_arg (*args, ip6_address_t *); + ip6_address_t *a = va_arg (*args, ip6_address_t *); u32 max_zero_run = 0, this_zero_run = 0; - int max_zero_run_index = -1, this_zero_run_index=0; + int max_zero_run_index = -1, this_zero_run_index = 0; int in_zero_run = 0, i; int last_double_colon = 0; @@ -52,49 +53,49 @@ u8 * format_ip6_address (u8 * s, va_list * args) for (i = 0; i < ARRAY_LEN (a->as_u16); i++) { if (a->as_u16[i] == 0) - { - if (in_zero_run) - this_zero_run++; - else - { - in_zero_run = 1; - this_zero_run =1; - this_zero_run_index = i; - } - } + { + if (in_zero_run) + this_zero_run++; + else + { + in_zero_run = 1; + this_zero_run = 1; + this_zero_run_index = i; + } + } else - { - if (in_zero_run) - { - /* offer to compress the biggest run of > 1 zero */ - if (this_zero_run > max_zero_run && this_zero_run > 1) - { - max_zero_run_index = this_zero_run_index; - max_zero_run = this_zero_run; - } - } - in_zero_run = 0; - this_zero_run = 0; - } + { + if (in_zero_run) + { + /* offer to compress the biggest run of > 1 zero */ + if (this_zero_run > max_zero_run && this_zero_run > 1) + { + max_zero_run_index = this_zero_run_index; + max_zero_run = this_zero_run; + } + } + in_zero_run = 0; + this_zero_run = 0; + } } if (in_zero_run) { if (this_zero_run > max_zero_run && this_zero_run > 1) - { - max_zero_run_index = this_zero_run_index; - max_zero_run = this_zero_run; - } + { + max_zero_run_index = this_zero_run_index; + max_zero_run = this_zero_run; + } } - + for (i = 0; i < ARRAY_LEN (a->as_u16); i++) { if (i == max_zero_run_index) - { + { s = format (s, "::"); - i += max_zero_run - 1; - last_double_colon = 1; - } + i += max_zero_run - 1; + last_double_colon = 1; + } else { s = format (s, "%s%x", @@ -108,17 +109,19 @@ u8 * format_ip6_address (u8 * s, va_list * args) } /* Format an IP6 route destination and length. */ -u8 * format_ip6_address_and_length (u8 * s, va_list * args) +u8 * +format_ip6_address_and_length (u8 * s, va_list * args) { - ip6_address_t * a = va_arg (*args, ip6_address_t *); + ip6_address_t *a = va_arg (*args, ip6_address_t *); u8 l = va_arg (*args, u32); return format (s, "%U/%d", format_ip6_address, a, l); } /* Parse an IP6 address. */ -uword unformat_ip6_address (unformat_input_t * input, va_list * args) +uword +unformat_ip6_address (unformat_input_t * input, va_list * args) { - ip6_address_t * result = va_arg (*args, ip6_address_t *); + ip6_address_t *result = va_arg (*args, ip6_address_t *); u16 hex_quads[8]; uword hex_quad, n_hex_quads, hex_digit, n_hex_digits; uword c, n_colon, double_colon_index; @@ -157,7 +160,7 @@ uword unformat_ip6_address (unformat_input_t * input, va_list * args) n_colon = 0; n_hex_digits++; } - + /* Save position of :: */ if (n_colon == 2) { @@ -190,10 +193,10 @@ uword unformat_ip6_address (unformat_input_t * input, va_list * args) hex_quads[n_zero + i] = hex_quads[i]; for (i = 0; i < n_zero; i++) - { - ASSERT ((double_colon_index + i) < ARRAY_LEN (hex_quads)); - hex_quads[double_colon_index + i] = 0; - } + { + ASSERT ((double_colon_index + i) < ARRAY_LEN (hex_quads)); + hex_quads[double_colon_index + i] = 0; + } n_hex_quads = ARRAY_LEN (hex_quads); } @@ -210,9 +213,10 @@ uword unformat_ip6_address (unformat_input_t * input, va_list * args) } /* Format an IP6 header. */ -u8 * format_ip6_header (u8 * s, va_list * args) +u8 * +format_ip6_header (u8 * s, va_list * args) { - ip6_header_t * ip = va_arg (*args, ip6_header_t *); + ip6_header_t *ip = va_arg (*args, ip6_header_t *); u32 max_header_bytes = va_arg (*args, u32); u32 i, ip_version, traffic_class, flow_label; uword indent; @@ -235,25 +239,24 @@ u8 * format_ip6_header (u8 * s, va_list * args) flow_label = i & pow2_mask (20); if (ip_version != 6) - s = format (s, "\n%Uversion %d", - format_white_space, indent, ip_version); - - s = format (s, "\n%Utos 0x%02x, flow label 0x%x, hop limit %d, payload length %d", - format_white_space, indent, - traffic_class, flow_label, ip->hop_limit, - clib_net_to_host_u16 (ip->payload_length)); + s = format (s, "\n%Uversion %d", format_white_space, indent, ip_version); + + s = + format (s, + "\n%Utos 0x%02x, flow label 0x%x, hop limit %d, payload length %d", + format_white_space, indent, traffic_class, flow_label, + ip->hop_limit, clib_net_to_host_u16 (ip->payload_length)); /* Recurse into next protocol layer. */ if (max_header_bytes != 0 && sizeof (ip[0]) < max_header_bytes) { - ip_main_t * im = &ip_main; - ip_protocol_info_t * pi = ip_get_protocol_info (im, ip->protocol); + ip_main_t *im = &ip_main; + ip_protocol_info_t *pi = ip_get_protocol_info (im, ip->protocol); if (pi && pi->format_header) s = format (s, "\n%U%U", - format_white_space, indent - 2, - pi->format_header, - /* next protocol header */ (void*) (ip + 1), + format_white_space, indent - 2, pi->format_header, + /* next protocol header */ (void *) (ip + 1), max_header_bytes - sizeof (ip[0])); } @@ -261,15 +264,16 @@ u8 * format_ip6_header (u8 * s, va_list * args) } /* Parse an IP6 header. */ -uword unformat_ip6_header (unformat_input_t * input, va_list * args) +uword +unformat_ip6_header (unformat_input_t * input, va_list * args) { - u8 ** result = va_arg (*args, u8 **); - ip6_header_t * ip; + u8 **result = va_arg (*args, u8 **); + ip6_header_t *ip; int old_length; /* Allocate space for IP header. */ { - void * p; + void *p; old_length = vec_len (*result); vec_add2 (*result, p, sizeof (ip[0])); @@ -277,12 +281,13 @@ uword unformat_ip6_header (unformat_input_t * input, va_list * args) } memset (ip, 0, sizeof (ip[0])); - ip->ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 (6 << 28); + ip->ip_version_traffic_class_and_flow_label = + clib_host_to_net_u32 (6 << 28); - if (! unformat (input, "%U: %U -> %U", - unformat_ip_protocol, &ip->protocol, - unformat_ip6_address, &ip->src_address, - unformat_ip6_address, &ip->dst_address)) + if (!unformat (input, "%U: %U -> %U", + unformat_ip_protocol, &ip->protocol, + unformat_ip6_address, &ip->src_address, + unformat_ip6_address, &ip->dst_address)) return 0; /* Parse options. */ @@ -291,7 +296,8 @@ uword unformat_ip6_header (unformat_input_t * input, va_list * args) int i; if (unformat (input, "tos %U", unformat_vlib_number, &i)) - ip->ip_version_traffic_class_and_flow_label |= clib_host_to_net_u32 ((i & 0xff) << 20); + ip->ip_version_traffic_class_and_flow_label |= + clib_host_to_net_u32 ((i & 0xff) << 20); else if (unformat (input, "hop-limit %U", unformat_vlib_number, &i)) ip->hop_limit = i; @@ -303,12 +309,12 @@ uword unformat_ip6_header (unformat_input_t * input, va_list * args) /* Recurse into next protocol layer. */ { - ip_main_t * im = &ip_main; - ip_protocol_info_t * pi = ip_get_protocol_info (im, ip->protocol); + ip_main_t *im = &ip_main; + ip_protocol_info_t *pi = ip_get_protocol_info (im, ip->protocol); if (pi && pi->unformat_header) { - if (! unformat_user (input, pi->unformat_header, result)) + if (!unformat_user (input, pi->unformat_header, result)) return 0; /* Result may have moved. */ @@ -316,29 +322,35 @@ uword unformat_ip6_header (unformat_input_t * input, va_list * args) } } - ip->payload_length = clib_host_to_net_u16 (vec_len (*result) - (old_length + sizeof (ip[0]))); + ip->payload_length = + clib_host_to_net_u16 (vec_len (*result) - (old_length + sizeof (ip[0]))); return 1; } /* Parse an IP46 address. */ -uword unformat_ip46_address (unformat_input_t * input, va_list * args) +uword +unformat_ip46_address (unformat_input_t * input, va_list * args) { ip46_address_t *ip46 = va_arg (*args, ip46_address_t *); ip46_type_t type = va_arg (*args, ip46_type_t); if ((type != IP46_TYPE_IP6) && - unformat(input, "%U", unformat_ip4_address, &ip46->ip4)) { - ip46_address_mask_ip4(ip46); - return 1; - } else if ((type != IP46_TYPE_IP4) && - unformat(input, "%U", unformat_ip6_address, &ip46->ip6)) { - return 1; - } + unformat (input, "%U", unformat_ip4_address, &ip46->ip4)) + { + ip46_address_mask_ip4 (ip46); + return 1; + } + else if ((type != IP46_TYPE_IP4) && + unformat (input, "%U", unformat_ip6_address, &ip46->ip6)) + { + return 1; + } return 0; } /* Format an IP46 address. */ -u8 * format_ip46_address (u8 * s, va_list * args) +u8 * +format_ip46_address (u8 * s, va_list * args) { ip46_address_t *ip46 = va_arg (*args, ip46_address_t *); ip46_type_t type = va_arg (*args, ip46_type_t); @@ -346,18 +358,26 @@ u8 * format_ip46_address (u8 * s, va_list * args) switch (type) { - case IP46_TYPE_ANY: - is_ip4 = ip46_address_is_ip4(ip46); - break; - case IP46_TYPE_IP4: - is_ip4 = 1; - break; - case IP46_TYPE_IP6: - is_ip4 = 0; - break; + case IP46_TYPE_ANY: + is_ip4 = ip46_address_is_ip4 (ip46); + break; + case IP46_TYPE_IP4: + is_ip4 = 1; + break; + case IP46_TYPE_IP6: + is_ip4 = 0; + break; } return is_ip4 ? - format(s, "%U", format_ip4_address, &ip46->ip4): - format(s, "%U", format_ip6_address, &ip46->ip6); + format (s, "%U", format_ip4_address, &ip46->ip4) : + format (s, "%U", format_ip6_address, &ip46->ip6); } + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip6_forward.c b/vnet/vnet/ip/ip6_forward.c index 6b74b7c9135..b5c795523ca 100644 --- a/vnet/vnet/ip/ip6_forward.c +++ b/vnet/vnet/ip/ip6_forward.c @@ -39,7 +39,7 @@ #include <vnet/vnet.h> #include <vnet/ip/ip.h> -#include <vnet/ethernet/ethernet.h> /* for ethernet_header_t */ +#include <vnet/ethernet/ethernet.h> /* for ethernet_header_t */ #include <vnet/srp/srp.h> /* for srp_hw_interface_class */ #include <vppinfra/cache.h> #include <vnet/fib/fib_table.h> @@ -58,20 +58,19 @@ void ip6_forward_next_trace (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame, - vlib_rx_or_tx_t which_adj_index); + vlib_node_runtime_t * node, + vlib_frame_t * frame, + vlib_rx_or_tx_t which_adj_index); always_inline uword ip6_lookup_inline (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) + vlib_node_runtime_t * node, vlib_frame_t * frame) { - ip6_main_t * im = &ip6_main; - vlib_combined_counter_main_t * cm = &load_balance_main.lbm_to_counters; - u32 n_left_from, n_left_to_next, * from, * to_next; + ip6_main_t *im = &ip6_main; + vlib_combined_counter_main_t *cm = &load_balance_main.lbm_to_counters; + u32 n_left_from, n_left_to_next, *from, *to_next; ip_lookup_next_t next; - u32 cpu_index = os_get_cpu_number(); + u32 cpu_index = os_get_cpu_number (); from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; @@ -79,24 +78,23 @@ ip6_lookup_inline (vlib_main_t * vm, while (n_left_from > 0) { - vlib_get_next_frame (vm, node, next, - to_next, n_left_to_next); + vlib_get_next_frame (vm, node, next, to_next, n_left_to_next); while (n_left_from >= 4 && n_left_to_next >= 2) { - vlib_buffer_t * p0, * p1; + vlib_buffer_t *p0, *p1; u32 pi0, pi1, lbi0, lbi1, wrong_next; ip_lookup_next_t next0, next1; - ip6_header_t * ip0, * ip1; - ip6_address_t * dst_addr0, * dst_addr1; - u32 fib_index0, fib_index1; - u32 flow_hash_config0, flow_hash_config1; + ip6_header_t *ip0, *ip1; + ip6_address_t *dst_addr0, *dst_addr1; + u32 fib_index0, fib_index1; + u32 flow_hash_config0, flow_hash_config1; const dpo_id_t *dpo0, *dpo1; const load_balance_t *lb0, *lb1; /* Prefetch next iteration. */ { - vlib_buffer_t * p2, * p3; + vlib_buffer_t *p2, *p3; p2 = vlib_get_buffer (vm, from[2]); p3 = vlib_get_buffer (vm, from[3]); @@ -119,13 +117,17 @@ ip6_lookup_inline (vlib_main_t * vm, dst_addr0 = &ip0->dst_address; dst_addr1 = &ip1->dst_address; - fib_index0 = vec_elt (im->fib_index_by_sw_if_index, vnet_buffer (p0)->sw_if_index[VLIB_RX]); - fib_index1 = vec_elt (im->fib_index_by_sw_if_index, vnet_buffer (p1)->sw_if_index[VLIB_RX]); + fib_index0 = + vec_elt (im->fib_index_by_sw_if_index, + vnet_buffer (p0)->sw_if_index[VLIB_RX]); + fib_index1 = + vec_elt (im->fib_index_by_sw_if_index, + vnet_buffer (p1)->sw_if_index[VLIB_RX]); - fib_index0 = (vnet_buffer(p0)->sw_if_index[VLIB_TX] == (u32)~0) ? - fib_index0 : vnet_buffer(p0)->sw_if_index[VLIB_TX]; - fib_index1 = (vnet_buffer(p1)->sw_if_index[VLIB_TX] == (u32)~0) ? - fib_index1 : vnet_buffer(p1)->sw_if_index[VLIB_TX]; + fib_index0 = (vnet_buffer (p0)->sw_if_index[VLIB_TX] == (u32) ~ 0) ? + fib_index0 : vnet_buffer (p0)->sw_if_index[VLIB_TX]; + fib_index1 = (vnet_buffer (p1)->sw_if_index[VLIB_TX] == (u32) ~ 0) ? + fib_index1 : vnet_buffer (p1)->sw_if_index[VLIB_TX]; lbi0 = ip6_fib_table_fwding_lookup (im, fib_index0, dst_addr0); lbi1 = ip6_fib_table_fwding_lookup (im, fib_index1, dst_addr1); @@ -133,65 +135,64 @@ ip6_lookup_inline (vlib_main_t * vm, lb0 = load_balance_get (lbi0); lb1 = load_balance_get (lbi1); - vnet_buffer (p0)->ip.flow_hash = - vnet_buffer(p1)->ip.flow_hash = 0; - - if (PREDICT_FALSE(lb0->lb_n_buckets > 1)) - { - flow_hash_config0 = lb0->lb_hash_config; - vnet_buffer (p0)->ip.flow_hash = - ip6_compute_flow_hash (ip0, flow_hash_config0); - } - if (PREDICT_FALSE(lb1->lb_n_buckets > 1)) - { - flow_hash_config1 = lb1->lb_hash_config; - vnet_buffer (p1)->ip.flow_hash = - ip6_compute_flow_hash (ip1, flow_hash_config1); - } + vnet_buffer (p0)->ip.flow_hash = vnet_buffer (p1)->ip.flow_hash = 0; + + if (PREDICT_FALSE (lb0->lb_n_buckets > 1)) + { + flow_hash_config0 = lb0->lb_hash_config; + vnet_buffer (p0)->ip.flow_hash = + ip6_compute_flow_hash (ip0, flow_hash_config0); + } + if (PREDICT_FALSE (lb1->lb_n_buckets > 1)) + { + flow_hash_config1 = lb1->lb_hash_config; + vnet_buffer (p1)->ip.flow_hash = + ip6_compute_flow_hash (ip1, flow_hash_config1); + } ASSERT (lb0->lb_n_buckets > 0); ASSERT (lb1->lb_n_buckets > 0); ASSERT (is_pow2 (lb0->lb_n_buckets)); ASSERT (is_pow2 (lb1->lb_n_buckets)); - dpo0 = load_balance_get_bucket_i(lb0, - (vnet_buffer (p0)->ip.flow_hash & - lb0->lb_n_buckets_minus_1)); - dpo1 = load_balance_get_bucket_i(lb1, - (vnet_buffer (p1)->ip.flow_hash & - lb1->lb_n_buckets_minus_1)); + dpo0 = load_balance_get_bucket_i (lb0, + (vnet_buffer (p0)->ip.flow_hash & + lb0->lb_n_buckets_minus_1)); + dpo1 = load_balance_get_bucket_i (lb1, + (vnet_buffer (p1)->ip.flow_hash & + lb1->lb_n_buckets_minus_1)); next0 = dpo0->dpoi_next_node; next1 = dpo1->dpoi_next_node; /* Only process the HBH Option Header if explicitly configured to do so */ - if (PREDICT_FALSE(ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) + if (PREDICT_FALSE + (ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) { - next0 = (dpo_is_adj(dpo0) && im->hbh_enabled) ? + next0 = (dpo_is_adj (dpo0) && im->hbh_enabled) ? (ip_lookup_next_t) IP6_LOOKUP_NEXT_HOP_BY_HOP : next0; } - if (PREDICT_FALSE(ip1->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) + if (PREDICT_FALSE + (ip1->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) { - next1 = (dpo_is_adj(dpo1) && im->hbh_enabled) ? + next1 = (dpo_is_adj (dpo1) && im->hbh_enabled) ? (ip_lookup_next_t) IP6_LOOKUP_NEXT_HOP_BY_HOP : next1; } vnet_buffer (p0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index; vnet_buffer (p1)->ip.adj_index[VLIB_TX] = dpo1->dpoi_index; vlib_increment_combined_counter - (cm, cpu_index, lbi0, 1, - vlib_buffer_length_in_chain (vm, p0)); + (cm, cpu_index, lbi0, 1, vlib_buffer_length_in_chain (vm, p0)); vlib_increment_combined_counter - (cm, cpu_index, lbi1, 1, - vlib_buffer_length_in_chain (vm, p1)); + (cm, cpu_index, lbi1, 1, vlib_buffer_length_in_chain (vm, p1)); from += 2; to_next += 2; n_left_to_next -= 2; n_left_from -= 2; - wrong_next = (next0 != next) + 2*(next1 != next); + wrong_next = (next0 != next) + 2 * (next1 != next); if (PREDICT_FALSE (wrong_next != 0)) - { + { switch (wrong_next) { case 1: @@ -220,7 +221,8 @@ ip6_lookup_inline (vlib_main_t * vm, /* A B B */ vlib_put_next_frame (vm, node, next, n_left_to_next); next = next1; - vlib_get_next_frame (vm, node, next, to_next, n_left_to_next); + vlib_get_next_frame (vm, node, next, to_next, + n_left_to_next); } } } @@ -228,13 +230,13 @@ ip6_lookup_inline (vlib_main_t * vm, while (n_left_from > 0 && n_left_to_next > 0) { - vlib_buffer_t * p0; - ip6_header_t * ip0; + vlib_buffer_t *p0; + ip6_header_t *ip0; u32 pi0, lbi0; ip_lookup_next_t next0; - load_balance_t * lb0; - ip6_address_t * dst_addr0; - u32 fib_index0, flow_hash_config0; + load_balance_t *lb0; + ip6_address_t *dst_addr0; + u32 fib_index0, flow_hash_config0; const dpo_id_t *dpo0; pi0 = from[0]; @@ -246,44 +248,46 @@ ip6_lookup_inline (vlib_main_t * vm, dst_addr0 = &ip0->dst_address; - fib_index0 = vec_elt (im->fib_index_by_sw_if_index, vnet_buffer (p0)->sw_if_index[VLIB_RX]); - fib_index0 = (vnet_buffer(p0)->sw_if_index[VLIB_TX] == (u32)~0) ? - fib_index0 : vnet_buffer(p0)->sw_if_index[VLIB_TX]; + fib_index0 = + vec_elt (im->fib_index_by_sw_if_index, + vnet_buffer (p0)->sw_if_index[VLIB_RX]); + fib_index0 = + (vnet_buffer (p0)->sw_if_index[VLIB_TX] == + (u32) ~ 0) ? fib_index0 : vnet_buffer (p0)->sw_if_index[VLIB_TX]; - flow_hash_config0 = - ip6_fib_get (fib_index0)->flow_hash_config; + flow_hash_config0 = ip6_fib_get (fib_index0)->flow_hash_config; lbi0 = ip6_fib_table_fwding_lookup (im, fib_index0, dst_addr0); lb0 = load_balance_get (lbi0); - vnet_buffer (p0)->ip.flow_hash = 0; + vnet_buffer (p0)->ip.flow_hash = 0; - if (PREDICT_FALSE(lb0->lb_n_buckets > 1)) - { - flow_hash_config0 = lb0->lb_hash_config; - vnet_buffer (p0)->ip.flow_hash = - ip6_compute_flow_hash (ip0, flow_hash_config0); - } + if (PREDICT_FALSE (lb0->lb_n_buckets > 1)) + { + flow_hash_config0 = lb0->lb_hash_config; + vnet_buffer (p0)->ip.flow_hash = + ip6_compute_flow_hash (ip0, flow_hash_config0); + } ASSERT (lb0->lb_n_buckets > 0); ASSERT (is_pow2 (lb0->lb_n_buckets)); - dpo0 = load_balance_get_bucket_i(lb0, - (vnet_buffer (p0)->ip.flow_hash & - lb0->lb_n_buckets_minus_1)); + dpo0 = load_balance_get_bucket_i (lb0, + (vnet_buffer (p0)->ip.flow_hash & + lb0->lb_n_buckets_minus_1)); next0 = dpo0->dpoi_next_node; /* Only process the HBH Option Header if explicitly configured to do so */ - if (PREDICT_FALSE(ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) + if (PREDICT_FALSE + (ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) { - next0 = (dpo_is_adj(dpo0) && im->hbh_enabled) ? + next0 = (dpo_is_adj (dpo0) && im->hbh_enabled) ? (ip_lookup_next_t) IP6_LOOKUP_NEXT_HOP_BY_HOP : next0; } vnet_buffer (p0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index; vlib_increment_combined_counter - (cm, cpu_index, lbi0, 1, - vlib_buffer_length_in_chain (vm, p0)); + (cm, cpu_index, lbi0, 1, vlib_buffer_length_in_chain (vm, p0)); from += 1; to_next += 1; @@ -295,8 +299,7 @@ ip6_lookup_inline (vlib_main_t * vm, n_left_to_next += 1; vlib_put_next_frame (vm, node, next, n_left_to_next); next = next0; - vlib_get_next_frame (vm, node, next, - to_next, n_left_to_next); + vlib_get_next_frame (vm, node, next, to_next, n_left_to_next); to_next[0] = pi0; to_next += 1; n_left_to_next -= 1; @@ -307,7 +310,7 @@ ip6_lookup_inline (vlib_main_t * vm, } if (node->flags & VLIB_NODE_FLAG_TRACE) - ip6_forward_next_trace(vm, node, frame, VLIB_TX); + ip6_forward_next_trace (vm, node, frame, VLIB_TX); return frame->n_vectors; } @@ -317,102 +320,77 @@ ip6_add_interface_routes (vnet_main_t * vnm, u32 sw_if_index, ip6_main_t * im, u32 fib_index, ip_interface_address_t * a) { - ip_lookup_main_t * lm = &im->lookup_main; - ip6_address_t * address = ip_interface_address_get_address (lm, a); + ip_lookup_main_t *lm = &im->lookup_main; + ip6_address_t *address = ip_interface_address_get_address (lm, a); fib_prefix_t pfx = { - .fp_len = a->address_length, - .fp_proto = FIB_PROTOCOL_IP6, - .fp_addr.ip6 = *address, + .fp_len = a->address_length, + .fp_proto = FIB_PROTOCOL_IP6, + .fp_addr.ip6 = *address, }; a->neighbor_probe_adj_index = ~0; if (a->address_length < 128) - { + { fib_node_index_t fei; - fei = fib_table_entry_update_one_path(fib_index, - &pfx, - FIB_SOURCE_INTERFACE, - (FIB_ENTRY_FLAG_CONNECTED | - FIB_ENTRY_FLAG_ATTACHED), - FIB_PROTOCOL_IP6, - NULL, /* No next-hop address */ - sw_if_index, - ~0, // invalid FIB index - 1, - NULL, // no label stack - FIB_ROUTE_PATH_FLAG_NONE); - a->neighbor_probe_adj_index = fib_entry_get_adj(fei); - } + fei = fib_table_entry_update_one_path (fib_index, &pfx, FIB_SOURCE_INTERFACE, (FIB_ENTRY_FLAG_CONNECTED | FIB_ENTRY_FLAG_ATTACHED), FIB_PROTOCOL_IP6, NULL, /* No next-hop address */ + sw_if_index, ~0, // invalid FIB index + 1, NULL, // no label stack + FIB_ROUTE_PATH_FLAG_NONE); + a->neighbor_probe_adj_index = fib_entry_get_adj (fei); + } pfx.fp_len = 128; if (sw_if_index < vec_len (lm->classify_table_index_by_sw_if_index)) - { + { u32 classify_table_index = - lm->classify_table_index_by_sw_if_index [sw_if_index]; - if (classify_table_index != (u32) ~0) - { - dpo_id_t dpo = DPO_INVALID; - - dpo_set(&dpo, - DPO_CLASSIFY, - DPO_PROTO_IP6, - classify_dpo_create(DPO_PROTO_IP6, classify_table_index)); - - fib_table_entry_special_dpo_add(fib_index, - &pfx, - FIB_SOURCE_CLASSIFY, - FIB_ENTRY_FLAG_NONE, - &dpo); - dpo_reset(&dpo); - } - } + lm->classify_table_index_by_sw_if_index[sw_if_index]; + if (classify_table_index != (u32) ~ 0) + { + dpo_id_t dpo = DPO_INVALID; + + dpo_set (&dpo, + DPO_CLASSIFY, + DPO_PROTO_IP6, + classify_dpo_create (DPO_PROTO_IP6, classify_table_index)); + + fib_table_entry_special_dpo_add (fib_index, + &pfx, + FIB_SOURCE_CLASSIFY, + FIB_ENTRY_FLAG_NONE, &dpo); + dpo_reset (&dpo); + } + } - fib_table_entry_update_one_path(fib_index, - &pfx, - FIB_SOURCE_INTERFACE, - (FIB_ENTRY_FLAG_CONNECTED | - FIB_ENTRY_FLAG_LOCAL), - FIB_PROTOCOL_IP6, - &pfx.fp_addr, - sw_if_index, - ~0, // invalid FIB index - 1, - NULL, - FIB_ROUTE_PATH_FLAG_NONE); + fib_table_entry_update_one_path (fib_index, &pfx, FIB_SOURCE_INTERFACE, (FIB_ENTRY_FLAG_CONNECTED | FIB_ENTRY_FLAG_LOCAL), FIB_PROTOCOL_IP6, &pfx.fp_addr, sw_if_index, ~0, // invalid FIB index + 1, NULL, FIB_ROUTE_PATH_FLAG_NONE); } static void ip6_del_interface_routes (ip6_main_t * im, u32 fib_index, - ip6_address_t * address, - u32 address_length) + ip6_address_t * address, u32 address_length) { - fib_prefix_t pfx = { - .fp_len = address_length, - .fp_proto = FIB_PROTOCOL_IP6, - .fp_addr.ip6 = *address, - }; + fib_prefix_t pfx = { + .fp_len = address_length, + .fp_proto = FIB_PROTOCOL_IP6, + .fp_addr.ip6 = *address, + }; - if (pfx.fp_len < 128) + if (pfx.fp_len < 128) { - fib_table_entry_delete(fib_index, - &pfx, - FIB_SOURCE_INTERFACE); + fib_table_entry_delete (fib_index, &pfx, FIB_SOURCE_INTERFACE); } - pfx.fp_len = 128; - fib_table_entry_delete(fib_index, - &pfx, - FIB_SOURCE_INTERFACE); + pfx.fp_len = 128; + fib_table_entry_delete (fib_index, &pfx, FIB_SOURCE_INTERFACE); } void -ip6_sw_interface_enable_disable (u32 sw_if_index, - u32 is_enable) +ip6_sw_interface_enable_disable (u32 sw_if_index, u32 is_enable) { - ip6_main_t * im = &ip6_main; + ip6_main_t *im = &ip6_main; vec_validate_init_empty (im->ip_enabled_by_sw_if_index, sw_if_index, 0); @@ -422,13 +400,13 @@ ip6_sw_interface_enable_disable (u32 sw_if_index, if (is_enable) { if (1 != ++im->ip_enabled_by_sw_if_index[sw_if_index]) - return; + return; } else { - ASSERT(im->ip_enabled_by_sw_if_index[sw_if_index] > 0); + ASSERT (im->ip_enabled_by_sw_if_index[sw_if_index] > 0); if (0 != --im->ip_enabled_by_sw_if_index[sw_if_index]) - return; + return; } vnet_feature_enable_disable ("ip6-unicast", "ip6-lookup", sw_if_index, @@ -443,12 +421,13 @@ ip6_sw_interface_enable_disable (u32 sw_if_index, ip6_address_t * ip6_interface_first_address (ip6_main_t * im, u32 sw_if_index, - ip_interface_address_t ** result_ia) + ip_interface_address_t ** result_ia) { - ip_lookup_main_t * lm = &im->lookup_main; - ip_interface_address_t * ia = 0; - ip6_address_t * result = 0; + ip_lookup_main_t *lm = &im->lookup_main; + ip_interface_address_t *ia = 0; + ip6_address_t *result = 0; + /* *INDENT-OFF* */ foreach_ip_interface_address (lm, ia, sw_if_index, 1 /* honor unnumbered */, ({ @@ -456,6 +435,7 @@ ip6_interface_first_address (ip6_main_t * im, result = a; break; })); + /* *INDENT-ON* */ if (result_ia) *result_ia = result ? ia : 0; return result; @@ -465,15 +445,14 @@ clib_error_t * ip6_add_del_interface_address (vlib_main_t * vm, u32 sw_if_index, ip6_address_t * address, - u32 address_length, - u32 is_del) + u32 address_length, u32 is_del) { - vnet_main_t * vnm = vnet_get_main(); - ip6_main_t * im = &ip6_main; - ip_lookup_main_t * lm = &im->lookup_main; - clib_error_t * error; + vnet_main_t *vnm = vnet_get_main (); + ip6_main_t *im = &ip6_main; + ip_lookup_main_t *lm = &im->lookup_main; + clib_error_t *error; u32 if_address_index; - ip6_address_fib_t ip6_af, * addr_fib = 0; + ip6_address_fib_t ip6_af, *addr_fib = 0; vec_validate (im->fib_index_by_sw_if_index, sw_if_index); ip6_addr_fib_init (&ip6_af, address, @@ -484,12 +463,7 @@ ip6_add_del_interface_address (vlib_main_t * vm, uword elts_before = pool_elts (lm->if_address_pool); error = ip_interface_address_add_del - (lm, - sw_if_index, - addr_fib, - address_length, - is_del, - &if_address_index); + (lm, sw_if_index, addr_fib, address_length, is_del, &if_address_index); if (error) goto done; @@ -498,49 +472,48 @@ ip6_add_del_interface_address (vlib_main_t * vm, goto done; } - ip6_sw_interface_enable_disable(sw_if_index, !is_del); + ip6_sw_interface_enable_disable (sw_if_index, !is_del); if (is_del) - ip6_del_interface_routes (im, ip6_af.fib_index, address, - address_length); + ip6_del_interface_routes (im, ip6_af.fib_index, address, address_length); else - ip6_add_interface_routes (vnm, sw_if_index, - im, ip6_af.fib_index, - pool_elt_at_index (lm->if_address_pool, if_address_index)); + ip6_add_interface_routes (vnm, sw_if_index, + im, ip6_af.fib_index, + pool_elt_at_index (lm->if_address_pool, + if_address_index)); { - ip6_add_del_interface_address_callback_t * cb; + ip6_add_del_interface_address_callback_t *cb; vec_foreach (cb, im->add_del_interface_address_callbacks) cb->function (im, cb->function_opaque, sw_if_index, - address, address_length, - if_address_index, - is_del); + address, address_length, if_address_index, is_del); } - done: +done: vec_free (addr_fib); return error; } clib_error_t * -ip6_sw_interface_admin_up_down (vnet_main_t * vnm, - u32 sw_if_index, - u32 flags) +ip6_sw_interface_admin_up_down (vnet_main_t * vnm, u32 sw_if_index, u32 flags) { - ip6_main_t * im = &ip6_main; - ip_interface_address_t * ia; - ip6_address_t * a; + ip6_main_t *im = &ip6_main; + ip_interface_address_t *ia; + ip6_address_t *a; u32 is_admin_up, fib_index; /* Fill in lookup tables with default table (0). */ vec_validate (im->fib_index_by_sw_if_index, sw_if_index); - vec_validate_init_empty (im->lookup_main.if_address_pool_index_by_sw_if_index, sw_if_index, ~0); + vec_validate_init_empty (im-> + lookup_main.if_address_pool_index_by_sw_if_index, + sw_if_index, ~0); is_admin_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0; fib_index = vec_elt (im->fib_index_by_sw_if_index, sw_if_index); + /* *INDENT-OFF* */ foreach_ip_interface_address (&im->lookup_main, ia, sw_if_index, 0 /* honor unnumbered */, ({ @@ -553,6 +526,7 @@ ip6_sw_interface_admin_up_down (vnet_main_t * vnm, ip6_del_interface_routes (im, fib_index, a, ia->address_length); })); + /* *INDENT-ON* */ return 0; } @@ -560,6 +534,7 @@ ip6_sw_interface_admin_up_down (vnet_main_t * vnm, VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION (ip6_sw_interface_admin_up_down); /* Built-in ip6 unicast rx feature path definition */ +/* *INDENT-OFF* */ VNET_FEATURE_ARC_INIT (ip6_unicast, static) = { .arc_name = "ip6-unicast", @@ -567,49 +542,57 @@ VNET_FEATURE_ARC_INIT (ip6_unicast, static) = .arc_index_ptr = &ip6_main.lookup_main.ucast_feature_arc_index, }; -VNET_FEATURE_INIT (ip6_flow_classify, static) = { +VNET_FEATURE_INIT (ip6_flow_classify, static) = +{ .arc_name = "ip6-unicast", .node_name = "ip6-flow-classify", .runs_before = VNET_FEATURES ("ip6-inacl"), }; -VNET_FEATURE_INIT (ip6_inacl, static) = { +VNET_FEATURE_INIT (ip6_inacl, static) = +{ .arc_name = "ip6-unicast", .node_name = "ip6-inacl", .runs_before = VNET_FEATURES ("ip6-policer-classify"), }; -VNET_FEATURE_INIT (ip6_policer_classify, static) = { +VNET_FEATURE_INIT (ip6_policer_classify, static) = +{ .arc_name = "ip6-unicast", .node_name = "ip6-policer-classify", .runs_before = VNET_FEATURES ("ipsec-input-ip6"), }; -VNET_FEATURE_INIT (ip6_ipsec, static) = { +VNET_FEATURE_INIT (ip6_ipsec, static) = +{ .arc_name = "ip6-unicast", .node_name = "ipsec-input-ip6", .runs_before = VNET_FEATURES ("l2tp-decap"), }; -VNET_FEATURE_INIT (ip6_l2tp, static) = { +VNET_FEATURE_INIT (ip6_l2tp, static) = +{ .arc_name = "ip6-unicast", .node_name = "l2tp-decap", .runs_before = VNET_FEATURES ("vpath-input-ip6"), }; -VNET_FEATURE_INIT (ip6_vpath, static) = { +VNET_FEATURE_INIT (ip6_vpath, static) = +{ .arc_name = "ip6-unicast", .node_name = "vpath-input-ip6", .runs_before = VNET_FEATURES ("ip6-lookup"), }; -VNET_FEATURE_INIT (ip6_lookup, static) = { +VNET_FEATURE_INIT (ip6_lookup, static) = +{ .arc_name = "ip6-unicast", .node_name = "ip6-lookup", .runs_before = VNET_FEATURES ("ip6-drop"), }; -VNET_FEATURE_INIT (ip6_drop, static) = { +VNET_FEATURE_INIT (ip6_drop, static) = +{ .arc_name = "ip6-unicast", .node_name = "ip6-drop", .runs_before = 0, /*last feature*/ @@ -660,11 +643,10 @@ VNET_FEATURE_INIT (ip6_interface_output, static) = { .node_name = "interface-output", .runs_before = 0, /* not before any other features */ }; +/* *INDENT-ON* */ clib_error_t * -ip6_sw_interface_add_del (vnet_main_t * vnm, - u32 sw_if_index, - u32 is_add) +ip6_sw_interface_add_del (vnet_main_t * vnm, u32 sw_if_index, u32 is_add) { vnet_feature_enable_disable ("ip6-unicast", "ip6-drop", sw_if_index, is_add, 0, 0); @@ -682,214 +664,224 @@ VNET_SW_INTERFACE_ADD_DEL_FUNCTION (ip6_sw_interface_add_del); static uword ip6_lookup (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) + vlib_node_runtime_t * node, vlib_frame_t * frame) { return ip6_lookup_inline (vm, node, frame); } -static u8 * format_ip6_lookup_trace (u8 * s, va_list * args); +static u8 *format_ip6_lookup_trace (u8 * s, va_list * args); -VLIB_REGISTER_NODE (ip6_lookup_node) = { +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (ip6_lookup_node) = +{ .function = ip6_lookup, .name = "ip6-lookup", .vector_size = sizeof (u32), - .format_trace = format_ip6_lookup_trace, - .n_next_nodes = IP6_LOOKUP_N_NEXT, .next_nodes = IP6_LOOKUP_NEXT_NODES, }; +/* *INDENT-ON* */ -VLIB_NODE_FUNCTION_MULTIARCH (ip6_lookup_node, ip6_lookup) +VLIB_NODE_FUNCTION_MULTIARCH (ip6_lookup_node, ip6_lookup); always_inline uword ip6_load_balance (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) + vlib_node_runtime_t * node, vlib_frame_t * frame) { - vlib_combined_counter_main_t * cm = &load_balance_main.lbm_via_counters; - u32 n_left_from, n_left_to_next, * from, * to_next; + vlib_combined_counter_main_t *cm = &load_balance_main.lbm_via_counters; + u32 n_left_from, n_left_to_next, *from, *to_next; ip_lookup_next_t next; - u32 cpu_index = os_get_cpu_number(); - ip6_main_t * im = &ip6_main; + u32 cpu_index = os_get_cpu_number (); + ip6_main_t *im = &ip6_main; from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; next = node->cached_next_index; if (node->flags & VLIB_NODE_FLAG_TRACE) - ip6_forward_next_trace(vm, node, frame, VLIB_TX); + ip6_forward_next_trace (vm, node, frame, VLIB_TX); while (n_left_from > 0) { - vlib_get_next_frame (vm, node, next, - to_next, n_left_to_next); + vlib_get_next_frame (vm, node, next, to_next, n_left_to_next); while (n_left_from >= 4 && n_left_to_next >= 2) - { - ip_lookup_next_t next0, next1; - const load_balance_t *lb0, *lb1; - vlib_buffer_t * p0, *p1; - u32 pi0, lbi0, hc0, pi1, lbi1, hc1; - const ip6_header_t *ip0, *ip1; - const dpo_id_t *dpo0, *dpo1; - - /* Prefetch next iteration. */ - { - vlib_buffer_t * p2, * p3; - - p2 = vlib_get_buffer (vm, from[2]); - p3 = vlib_get_buffer (vm, from[3]); - - vlib_prefetch_buffer_header (p2, STORE); - vlib_prefetch_buffer_header (p3, STORE); - - CLIB_PREFETCH (p2->data, sizeof (ip0[0]), STORE); - CLIB_PREFETCH (p3->data, sizeof (ip0[0]), STORE); - } - - pi0 = to_next[0] = from[0]; - pi1 = to_next[1] = from[1]; - - from += 2; - n_left_from -= 2; - to_next += 2; - n_left_to_next -= 2; - - p0 = vlib_get_buffer (vm, pi0); - p1 = vlib_get_buffer (vm, pi1); - - ip0 = vlib_buffer_get_current (p0); - ip1 = vlib_buffer_get_current (p1); - lbi0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX]; - lbi1 = vnet_buffer (p1)->ip.adj_index[VLIB_TX]; - - lb0 = load_balance_get(lbi0); - lb1 = load_balance_get(lbi1); - - /* - * this node is for via FIBs we can re-use the hash value from the - * to node if present. - * We don't want to use the same hash value at each level in the recursion - * graph as that would lead to polarisation - */ - hc0 = vnet_buffer (p0)->ip.flow_hash = 0; - hc1 = vnet_buffer (p1)->ip.flow_hash = 0; - - if (PREDICT_FALSE (lb0->lb_n_buckets > 1)) - { - if (PREDICT_TRUE (vnet_buffer(p0)->ip.flow_hash)) - { - hc0 = vnet_buffer(p0)->ip.flow_hash = vnet_buffer(p0)->ip.flow_hash >> 1; - } - else - { - hc0 = vnet_buffer(p0)->ip.flow_hash = ip6_compute_flow_hash(ip0, hc0); - } - } - if (PREDICT_FALSE (lb1->lb_n_buckets > 1)) - { - if (PREDICT_TRUE (vnet_buffer(p1)->ip.flow_hash)) - { - hc1 = vnet_buffer(p1)->ip.flow_hash = vnet_buffer(p1)->ip.flow_hash >> 1; - } - else - { - hc1 = vnet_buffer(p1)->ip.flow_hash = ip6_compute_flow_hash(ip1, hc1); - } - } - - dpo0 = load_balance_get_bucket_i(lb0, hc0 & (lb0->lb_n_buckets_minus_1)); - dpo1 = load_balance_get_bucket_i(lb1, hc1 & (lb1->lb_n_buckets_minus_1)); - - next0 = dpo0->dpoi_next_node; - next1 = dpo1->dpoi_next_node; - - /* Only process the HBH Option Header if explicitly configured to do so */ - if (PREDICT_FALSE(ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) - { - next0 = (dpo_is_adj(dpo0) && im->hbh_enabled) ? - (ip_lookup_next_t) IP6_LOOKUP_NEXT_HOP_BY_HOP : next0; - } - /* Only process the HBH Option Header if explicitly configured to do so */ - if (PREDICT_FALSE(ip1->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) - { - next1 = (dpo_is_adj(dpo1) && im->hbh_enabled) ? - (ip_lookup_next_t) IP6_LOOKUP_NEXT_HOP_BY_HOP : next1; - } - - vnet_buffer (p0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index; - vnet_buffer (p1)->ip.adj_index[VLIB_TX] = dpo1->dpoi_index; - - vlib_increment_combined_counter - (cm, cpu_index, lbi0, 1, - vlib_buffer_length_in_chain (vm, p0)); - vlib_increment_combined_counter - (cm, cpu_index, lbi1, 1, - vlib_buffer_length_in_chain (vm, p1)); - - vlib_validate_buffer_enqueue_x2 (vm, node, next, - to_next, n_left_to_next, - pi0, pi1, next0, next1); - } + { + ip_lookup_next_t next0, next1; + const load_balance_t *lb0, *lb1; + vlib_buffer_t *p0, *p1; + u32 pi0, lbi0, hc0, pi1, lbi1, hc1; + const ip6_header_t *ip0, *ip1; + const dpo_id_t *dpo0, *dpo1; + + /* Prefetch next iteration. */ + { + vlib_buffer_t *p2, *p3; + + p2 = vlib_get_buffer (vm, from[2]); + p3 = vlib_get_buffer (vm, from[3]); + + vlib_prefetch_buffer_header (p2, STORE); + vlib_prefetch_buffer_header (p3, STORE); + + CLIB_PREFETCH (p2->data, sizeof (ip0[0]), STORE); + CLIB_PREFETCH (p3->data, sizeof (ip0[0]), STORE); + } + + pi0 = to_next[0] = from[0]; + pi1 = to_next[1] = from[1]; + + from += 2; + n_left_from -= 2; + to_next += 2; + n_left_to_next -= 2; + + p0 = vlib_get_buffer (vm, pi0); + p1 = vlib_get_buffer (vm, pi1); + + ip0 = vlib_buffer_get_current (p0); + ip1 = vlib_buffer_get_current (p1); + lbi0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX]; + lbi1 = vnet_buffer (p1)->ip.adj_index[VLIB_TX]; + + lb0 = load_balance_get (lbi0); + lb1 = load_balance_get (lbi1); + + /* + * this node is for via FIBs we can re-use the hash value from the + * to node if present. + * We don't want to use the same hash value at each level in the recursion + * graph as that would lead to polarisation + */ + hc0 = vnet_buffer (p0)->ip.flow_hash = 0; + hc1 = vnet_buffer (p1)->ip.flow_hash = 0; + + if (PREDICT_FALSE (lb0->lb_n_buckets > 1)) + { + if (PREDICT_TRUE (vnet_buffer (p0)->ip.flow_hash)) + { + hc0 = vnet_buffer (p0)->ip.flow_hash = + vnet_buffer (p0)->ip.flow_hash >> 1; + } + else + { + hc0 = vnet_buffer (p0)->ip.flow_hash = + ip6_compute_flow_hash (ip0, hc0); + } + } + if (PREDICT_FALSE (lb1->lb_n_buckets > 1)) + { + if (PREDICT_TRUE (vnet_buffer (p1)->ip.flow_hash)) + { + hc1 = vnet_buffer (p1)->ip.flow_hash = + vnet_buffer (p1)->ip.flow_hash >> 1; + } + else + { + hc1 = vnet_buffer (p1)->ip.flow_hash = + ip6_compute_flow_hash (ip1, hc1); + } + } + + dpo0 = + load_balance_get_bucket_i (lb0, + hc0 & (lb0->lb_n_buckets_minus_1)); + dpo1 = + load_balance_get_bucket_i (lb1, + hc1 & (lb1->lb_n_buckets_minus_1)); + + next0 = dpo0->dpoi_next_node; + next1 = dpo1->dpoi_next_node; + + /* Only process the HBH Option Header if explicitly configured to do so */ + if (PREDICT_FALSE + (ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) + { + next0 = (dpo_is_adj (dpo0) && im->hbh_enabled) ? + (ip_lookup_next_t) IP6_LOOKUP_NEXT_HOP_BY_HOP : next0; + } + /* Only process the HBH Option Header if explicitly configured to do so */ + if (PREDICT_FALSE + (ip1->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) + { + next1 = (dpo_is_adj (dpo1) && im->hbh_enabled) ? + (ip_lookup_next_t) IP6_LOOKUP_NEXT_HOP_BY_HOP : next1; + } + + vnet_buffer (p0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index; + vnet_buffer (p1)->ip.adj_index[VLIB_TX] = dpo1->dpoi_index; + + vlib_increment_combined_counter + (cm, cpu_index, lbi0, 1, vlib_buffer_length_in_chain (vm, p0)); + vlib_increment_combined_counter + (cm, cpu_index, lbi1, 1, vlib_buffer_length_in_chain (vm, p1)); + + vlib_validate_buffer_enqueue_x2 (vm, node, next, + to_next, n_left_to_next, + pi0, pi1, next0, next1); + } while (n_left_from > 0 && n_left_to_next > 0) - { - ip_lookup_next_t next0; - const load_balance_t *lb0; - vlib_buffer_t * p0; - u32 pi0, lbi0, hc0; - const ip6_header_t *ip0; - const dpo_id_t *dpo0; - - pi0 = from[0]; - to_next[0] = pi0; - from += 1; - to_next += 1; - n_left_to_next -= 1; - n_left_from -= 1; - - p0 = vlib_get_buffer (vm, pi0); - - ip0 = vlib_buffer_get_current (p0); - lbi0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX]; - - lb0 = load_balance_get(lbi0); - - hc0 = vnet_buffer (p0)->ip.flow_hash = 0; - if (PREDICT_FALSE (lb0->lb_n_buckets > 1)) - { - if (PREDICT_TRUE (vnet_buffer(p0)->ip.flow_hash)) - { - hc0 = vnet_buffer(p0)->ip.flow_hash = vnet_buffer(p0)->ip.flow_hash >> 1; - } - else - { - hc0 = vnet_buffer(p0)->ip.flow_hash = ip6_compute_flow_hash(ip0, hc0); - } - } - dpo0 = load_balance_get_bucket_i(lb0, hc0 & (lb0->lb_n_buckets_minus_1)); - - next0 = dpo0->dpoi_next_node; - vnet_buffer (p0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index; - - /* Only process the HBH Option Header if explicitly configured to do so */ - if (PREDICT_FALSE(ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) - { - next0 = (dpo_is_adj(dpo0) && im->hbh_enabled) ? - (ip_lookup_next_t) IP6_LOOKUP_NEXT_HOP_BY_HOP : next0; - } - - vlib_increment_combined_counter - (cm, cpu_index, lbi0, 1, - vlib_buffer_length_in_chain (vm, p0)); - - vlib_validate_buffer_enqueue_x1 (vm, node, next, - to_next, n_left_to_next, - pi0, next0); - } + { + ip_lookup_next_t next0; + const load_balance_t *lb0; + vlib_buffer_t *p0; + u32 pi0, lbi0, hc0; + const ip6_header_t *ip0; + const dpo_id_t *dpo0; + + pi0 = from[0]; + to_next[0] = pi0; + from += 1; + to_next += 1; + n_left_to_next -= 1; + n_left_from -= 1; + + p0 = vlib_get_buffer (vm, pi0); + + ip0 = vlib_buffer_get_current (p0); + lbi0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX]; + + lb0 = load_balance_get (lbi0); + + hc0 = vnet_buffer (p0)->ip.flow_hash = 0; + if (PREDICT_FALSE (lb0->lb_n_buckets > 1)) + { + if (PREDICT_TRUE (vnet_buffer (p0)->ip.flow_hash)) + { + hc0 = vnet_buffer (p0)->ip.flow_hash = + vnet_buffer (p0)->ip.flow_hash >> 1; + } + else + { + hc0 = vnet_buffer (p0)->ip.flow_hash = + ip6_compute_flow_hash (ip0, hc0); + } + } + dpo0 = + load_balance_get_bucket_i (lb0, + hc0 & (lb0->lb_n_buckets_minus_1)); + + next0 = dpo0->dpoi_next_node; + vnet_buffer (p0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index; + + /* Only process the HBH Option Header if explicitly configured to do so */ + if (PREDICT_FALSE + (ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) + { + next0 = (dpo_is_adj (dpo0) && im->hbh_enabled) ? + (ip_lookup_next_t) IP6_LOOKUP_NEXT_HOP_BY_HOP : next0; + } + + vlib_increment_combined_counter + (cm, cpu_index, lbi0, 1, vlib_buffer_length_in_chain (vm, p0)); + + vlib_validate_buffer_enqueue_x1 (vm, node, next, + to_next, n_left_to_next, + pi0, next0); + } vlib_put_next_frame (vm, node, next, n_left_to_next); } @@ -897,73 +889,78 @@ ip6_load_balance (vlib_main_t * vm, return frame->n_vectors; } -VLIB_REGISTER_NODE (ip6_load_balance_node) = { +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (ip6_load_balance_node) = +{ .function = ip6_load_balance, .name = "ip6-load-balance", .vector_size = sizeof (u32), .sibling_of = "ip6-lookup", - .format_trace = format_ip6_lookup_trace, }; +/* *INDENT-ON* */ -VLIB_NODE_FUNCTION_MULTIARCH (ip6_load_balance_node, ip6_load_balance) +VLIB_NODE_FUNCTION_MULTIARCH (ip6_load_balance_node, ip6_load_balance); -typedef struct { +typedef struct +{ /* Adjacency taken. */ u32 adj_index; u32 flow_hash; u32 fib_index; /* Packet data, possibly *after* rewrite. */ - u8 packet_data[128 - 1*sizeof(u32)]; -} ip6_forward_next_trace_t; + u8 packet_data[128 - 1 * sizeof (u32)]; +} +ip6_forward_next_trace_t; -static u8 * format_ip6_forward_next_trace (u8 * s, va_list * args) +static u8 * +format_ip6_forward_next_trace (u8 * s, va_list * args) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); - ip6_forward_next_trace_t * t = va_arg (*args, ip6_forward_next_trace_t *); + ip6_forward_next_trace_t *t = va_arg (*args, ip6_forward_next_trace_t *); uword indent = format_get_indent (s); - s = format(s, "%U%U", - format_white_space, indent, - format_ip6_header, t->packet_data, sizeof (t->packet_data)); + s = format (s, "%U%U", + format_white_space, indent, + format_ip6_header, t->packet_data, sizeof (t->packet_data)); return s; } -static u8 * format_ip6_lookup_trace (u8 * s, va_list * args) +static u8 * +format_ip6_lookup_trace (u8 * s, va_list * args) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); - ip6_forward_next_trace_t * t = va_arg (*args, ip6_forward_next_trace_t *); + ip6_forward_next_trace_t *t = va_arg (*args, ip6_forward_next_trace_t *); uword indent = format_get_indent (s); s = format (s, "fib %d dpo-idx %d flow hash: 0x%08x", - t->fib_index, t->adj_index, t->flow_hash); - s = format(s, "\n%U%U", - format_white_space, indent, - format_ip6_header, t->packet_data, sizeof (t->packet_data)); + t->fib_index, t->adj_index, t->flow_hash); + s = format (s, "\n%U%U", + format_white_space, indent, + format_ip6_header, t->packet_data, sizeof (t->packet_data)); return s; } -static u8 * format_ip6_rewrite_trace (u8 * s, va_list * args) +static u8 * +format_ip6_rewrite_trace (u8 * s, va_list * args) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); - ip6_forward_next_trace_t * t = va_arg (*args, ip6_forward_next_trace_t *); - vnet_main_t * vnm = vnet_get_main(); + ip6_forward_next_trace_t *t = va_arg (*args, ip6_forward_next_trace_t *); + vnet_main_t *vnm = vnet_get_main (); uword indent = format_get_indent (s); s = format (s, "tx_sw_if_index %d adj-idx %d : %U flow hash: 0x%08x", - t->fib_index, t->adj_index, format_ip_adjacency, - t->adj_index, FORMAT_IP_ADJACENCY_NONE, - t->flow_hash); + t->fib_index, t->adj_index, format_ip_adjacency, + t->adj_index, FORMAT_IP_ADJACENCY_NONE, t->flow_hash); s = format (s, "\n%U%U", - format_white_space, indent, - format_ip_adjacency_packet_data, - vnm, t->adj_index, - t->packet_data, sizeof (t->packet_data)); + format_white_space, indent, + format_ip_adjacency_packet_data, + vnm, t->adj_index, t->packet_data, sizeof (t->packet_data)); return s; } @@ -971,11 +968,10 @@ static u8 * format_ip6_rewrite_trace (u8 * s, va_list * args) void ip6_forward_next_trace (vlib_main_t * vm, vlib_node_runtime_t * node, - vlib_frame_t * frame, - vlib_rx_or_tx_t which_adj_index) + vlib_frame_t * frame, vlib_rx_or_tx_t which_adj_index) { - u32 * from, n_left; - ip6_main_t * im = &ip6_main; + u32 *from, n_left; + ip6_main_t *im = &ip6_main; n_left = frame->n_vectors; from = vlib_frame_vector_args (frame); @@ -983,8 +979,8 @@ ip6_forward_next_trace (vlib_main_t * vm, while (n_left >= 4) { u32 bi0, bi1; - vlib_buffer_t * b0, * b1; - ip6_forward_next_trace_t * t0, * t1; + vlib_buffer_t *b0, *b1; + ip6_forward_next_trace_t *t0, *t1; /* Prefetch next iteration. */ vlib_prefetch_buffer_with_index (vm, from[2], LOAD); @@ -1000,29 +996,31 @@ ip6_forward_next_trace (vlib_main_t * vm, { t0 = vlib_add_trace (vm, node, b0, sizeof (t0[0])); t0->adj_index = vnet_buffer (b0)->ip.adj_index[which_adj_index]; - t0->flow_hash = vnet_buffer (b0)->ip.flow_hash; - t0->fib_index = (vnet_buffer(b0)->sw_if_index[VLIB_TX] != (u32)~0) ? - vnet_buffer(b0)->sw_if_index[VLIB_TX] : - vec_elt (im->fib_index_by_sw_if_index, - vnet_buffer(b0)->sw_if_index[VLIB_RX]); + t0->flow_hash = vnet_buffer (b0)->ip.flow_hash; + t0->fib_index = + (vnet_buffer (b0)->sw_if_index[VLIB_TX] != + (u32) ~ 0) ? vnet_buffer (b0)->sw_if_index[VLIB_TX] : + vec_elt (im->fib_index_by_sw_if_index, + vnet_buffer (b0)->sw_if_index[VLIB_RX]); clib_memcpy (t0->packet_data, - vlib_buffer_get_current (b0), - sizeof (t0->packet_data)); + vlib_buffer_get_current (b0), + sizeof (t0->packet_data)); } if (b1->flags & VLIB_BUFFER_IS_TRACED) { t1 = vlib_add_trace (vm, node, b1, sizeof (t1[0])); t1->adj_index = vnet_buffer (b1)->ip.adj_index[which_adj_index]; - t1->flow_hash = vnet_buffer (b1)->ip.flow_hash; - t1->fib_index = (vnet_buffer(b1)->sw_if_index[VLIB_TX] != (u32)~0) ? - vnet_buffer(b1)->sw_if_index[VLIB_TX] : - vec_elt (im->fib_index_by_sw_if_index, - vnet_buffer(b1)->sw_if_index[VLIB_RX]); + t1->flow_hash = vnet_buffer (b1)->ip.flow_hash; + t1->fib_index = + (vnet_buffer (b1)->sw_if_index[VLIB_TX] != + (u32) ~ 0) ? vnet_buffer (b1)->sw_if_index[VLIB_TX] : + vec_elt (im->fib_index_by_sw_if_index, + vnet_buffer (b1)->sw_if_index[VLIB_RX]); clib_memcpy (t1->packet_data, - vlib_buffer_get_current (b1), - sizeof (t1->packet_data)); + vlib_buffer_get_current (b1), + sizeof (t1->packet_data)); } from += 2; n_left -= 2; @@ -1031,8 +1029,8 @@ ip6_forward_next_trace (vlib_main_t * vm, while (n_left >= 1) { u32 bi0; - vlib_buffer_t * b0; - ip6_forward_next_trace_t * t0; + vlib_buffer_t *b0; + ip6_forward_next_trace_t *t0; bi0 = from[0]; @@ -1042,15 +1040,16 @@ ip6_forward_next_trace (vlib_main_t * vm, { t0 = vlib_add_trace (vm, node, b0, sizeof (t0[0])); t0->adj_index = vnet_buffer (b0)->ip.adj_index[which_adj_index]; - t0->flow_hash = vnet_buffer (b0)->ip.flow_hash; - t0->fib_index = (vnet_buffer(b0)->sw_if_index[VLIB_TX] != (u32)~0) ? - vnet_buffer(b0)->sw_if_index[VLIB_TX] : - vec_elt (im->fib_index_by_sw_if_index, - vnet_buffer(b0)->sw_if_index[VLIB_RX]); + t0->flow_hash = vnet_buffer (b0)->ip.flow_hash; + t0->fib_index = + (vnet_buffer (b0)->sw_if_index[VLIB_TX] != + (u32) ~ 0) ? vnet_buffer (b0)->sw_if_index[VLIB_TX] : + vec_elt (im->fib_index_by_sw_if_index, + vnet_buffer (b0)->sw_if_index[VLIB_RX]); clib_memcpy (t0->packet_data, - vlib_buffer_get_current (b0), - sizeof (t0->packet_data)); + vlib_buffer_get_current (b0), + sizeof (t0->packet_data)); } from += 1; n_left -= 1; @@ -1060,19 +1059,16 @@ ip6_forward_next_trace (vlib_main_t * vm, static uword ip6_drop_or_punt (vlib_main_t * vm, vlib_node_runtime_t * node, - vlib_frame_t * frame, - ip6_error_t error_code) + vlib_frame_t * frame, ip6_error_t error_code) { - u32 * buffers = vlib_frame_vector_args (frame); + u32 *buffers = vlib_frame_vector_args (frame); uword n_packets = frame->n_vectors; - vlib_error_drop_buffers (vm, node, - buffers, + vlib_error_drop_buffers (vm, node, buffers, /* stride */ 1, n_packets, /* next */ 0, - ip6_input_node.index, - error_code); + ip6_input_node.index, error_code); if (node->flags & VLIB_NODE_FLAG_TRACE) ip6_forward_next_trace (vm, node, frame, VLIB_TX); @@ -1081,70 +1077,77 @@ ip6_drop_or_punt (vlib_main_t * vm, } static uword -ip6_drop (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ return ip6_drop_or_punt (vm, node, frame, IP6_ERROR_ADJACENCY_DROP); } +ip6_drop (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) +{ + return ip6_drop_or_punt (vm, node, frame, IP6_ERROR_ADJACENCY_DROP); +} static uword -ip6_punt (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ return ip6_drop_or_punt (vm, node, frame, IP6_ERROR_ADJACENCY_PUNT); } +ip6_punt (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) +{ + return ip6_drop_or_punt (vm, node, frame, IP6_ERROR_ADJACENCY_PUNT); +} -VLIB_REGISTER_NODE (ip6_drop_node,static) = { +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (ip6_drop_node, static) = +{ .function = ip6_drop, .name = "ip6-drop", .vector_size = sizeof (u32), - .format_trace = format_ip6_forward_next_trace, - .n_next_nodes = 1, - .next_nodes = { - [0] = "error-drop", - }, + .next_nodes = + { + [0] = "error-drop",}, }; +/* *INDENT-ON* */ -VLIB_NODE_FUNCTION_MULTIARCH (ip6_drop_node, ip6_drop) +VLIB_NODE_FUNCTION_MULTIARCH (ip6_drop_node, ip6_drop); -VLIB_REGISTER_NODE (ip6_punt_node,static) = { +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (ip6_punt_node, static) = +{ .function = ip6_punt, .name = "ip6-punt", .vector_size = sizeof (u32), - .format_trace = format_ip6_forward_next_trace, - .n_next_nodes = 1, - .next_nodes = { - [0] = "error-punt", - }, + .next_nodes = + { + [0] = "error-punt",}, }; +/* *INDENT-ON* */ -VLIB_NODE_FUNCTION_MULTIARCH (ip6_punt_node, ip6_punt) +VLIB_NODE_FUNCTION_MULTIARCH (ip6_punt_node, ip6_punt); -VLIB_REGISTER_NODE (ip6_multicast_node,static) = { +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (ip6_multicast_node, static) = +{ .function = ip6_drop, .name = "ip6-multicast", .vector_size = sizeof (u32), - .format_trace = format_ip6_forward_next_trace, - .n_next_nodes = 1, - .next_nodes = { + .next_nodes = + { [0] = "error-drop", }, }; +/* *INDENT-ON* */ + /* Compute TCP/UDP/ICMP6 checksum in software. */ -u16 ip6_tcp_udp_icmp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0, ip6_header_t * ip0, int *bogus_lengthp) +u16 +ip6_tcp_udp_icmp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0, + ip6_header_t * ip0, int *bogus_lengthp) { ip_csum_t sum0; u16 sum16, payload_length_host_byte_order; u32 i, n_this_buffer, n_bytes_left; - u32 headers_size = sizeof(ip0[0]); - void * data_this_buffer; + u32 headers_size = sizeof (ip0[0]); + void *data_this_buffer; - ASSERT(bogus_lengthp); + ASSERT (bogus_lengthp); *bogus_lengthp = 0; /* Initialize checksum with ip header. */ @@ -1155,30 +1158,37 @@ u16 ip6_tcp_udp_icmp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0, ip6 for (i = 0; i < ARRAY_LEN (ip0->src_address.as_uword); i++) { sum0 = ip_csum_with_carry (sum0, - clib_mem_unaligned (&ip0->src_address.as_uword[i], uword)); - sum0 = ip_csum_with_carry (sum0, - clib_mem_unaligned (&ip0->dst_address.as_uword[i], uword)); + clib_mem_unaligned (&ip0-> + src_address.as_uword[i], + uword)); + sum0 = + ip_csum_with_carry (sum0, + clib_mem_unaligned (&ip0->dst_address.as_uword[i], + uword)); } /* some icmp packets may come with a "router alert" hop-by-hop extension header (e.g., mldv2 packets) */ - if (PREDICT_FALSE (ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) + if (PREDICT_FALSE (ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) { - u32 skip_bytes; - ip6_hop_by_hop_ext_t *ext_hdr = (ip6_hop_by_hop_ext_t *)data_this_buffer; + u32 skip_bytes; + ip6_hop_by_hop_ext_t *ext_hdr = + (ip6_hop_by_hop_ext_t *) data_this_buffer; /* validate really icmp6 next */ - ASSERT(ext_hdr->next_hdr == IP_PROTOCOL_ICMP6); + ASSERT (ext_hdr->next_hdr == IP_PROTOCOL_ICMP6); - skip_bytes = 8* (1 + ext_hdr->n_data_u64s); - data_this_buffer = (void *)((u8 *)data_this_buffer + skip_bytes); + skip_bytes = 8 * (1 + ext_hdr->n_data_u64s); + data_this_buffer = (void *) ((u8 *) data_this_buffer + skip_bytes); - payload_length_host_byte_order -= skip_bytes; + payload_length_host_byte_order -= skip_bytes; headers_size += skip_bytes; - } + } n_bytes_left = n_this_buffer = payload_length_host_byte_order; - if (p0 && n_this_buffer + headers_size > p0->current_length) - n_this_buffer = p0->current_length > headers_size ? p0->current_length - headers_size : 0; + if (p0 && n_this_buffer + headers_size > p0->current_length) + n_this_buffer = + p0->current_length > + headers_size ? p0->current_length - headers_size : 0; while (1) { sum0 = ip_incremental_checksum (sum0, data_this_buffer, n_this_buffer); @@ -1187,24 +1197,25 @@ u16 ip6_tcp_udp_icmp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0, ip6 break; if (!(p0->flags & VLIB_BUFFER_NEXT_PRESENT)) - { - *bogus_lengthp = 1; - return 0xfefe; - } + { + *bogus_lengthp = 1; + return 0xfefe; + } p0 = vlib_get_buffer (vm, p0->next_buffer); data_this_buffer = vlib_buffer_get_current (p0); n_this_buffer = p0->current_length; } - sum16 = ~ ip_csum_fold (sum0); + sum16 = ~ip_csum_fold (sum0); return sum16; } -u32 ip6_tcp_udp_icmp_validate_checksum (vlib_main_t * vm, vlib_buffer_t * p0) +u32 +ip6_tcp_udp_icmp_validate_checksum (vlib_main_t * vm, vlib_buffer_t * p0) { - ip6_header_t * ip0 = vlib_buffer_get_current (p0); - udp_header_t * udp0; + ip6_header_t *ip0 = vlib_buffer_get_current (p0); + udp_header_t *udp0; u16 sum16; int bogus_length; @@ -1212,7 +1223,7 @@ u32 ip6_tcp_udp_icmp_validate_checksum (vlib_main_t * vm, vlib_buffer_t * p0) ASSERT (ip0->protocol == IP_PROTOCOL_TCP || ip0->protocol == IP_PROTOCOL_ICMP6 || ip0->protocol == IP_PROTOCOL_UDP - || ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS); + || ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS); udp0 = (void *) (ip0 + 1); if (ip0->protocol == IP_PROTOCOL_UDP && udp0->checksum == 0) @@ -1242,75 +1253,77 @@ u32 ip6_tcp_udp_icmp_validate_checksum (vlib_main_t * vm, vlib_buffer_t * p0) * 3. If find_hdr header is not found or packet is malformed or * it is a non-first fragment -1 is returned. */ -always_inline int ip6_locate_header (vlib_buffer_t *p0, - ip6_header_t *ip0, - int find_hdr, - u32 *offset) +always_inline int +ip6_locate_header (vlib_buffer_t * p0, + ip6_header_t * ip0, int find_hdr, u32 * offset) { u8 next_proto = ip0->protocol; u8 *next_header; u8 done = 0; u32 cur_offset; - u8 *temp_nxthdr = 0; + u8 *temp_nxthdr = 0; u32 exthdr_len = 0; - next_header = ip6_next_header(ip0); - cur_offset = sizeof(ip6_header_t); - while(1) + next_header = ip6_next_header (ip0); + cur_offset = sizeof (ip6_header_t); + while (1) { done = (next_proto == find_hdr); - if (PREDICT_FALSE(next_header >= (u8 *)vlib_buffer_get_current(p0) + p0->current_length)) + if (PREDICT_FALSE + (next_header >= + (u8 *) vlib_buffer_get_current (p0) + p0->current_length)) { //A malicious packet could set an extension header with a too big size - return(-1); + return (-1); } if (done) break; - if ((!ip6_ext_hdr(next_proto)) || next_proto == IP_PROTOCOL_IP6_NONXT) + if ((!ip6_ext_hdr (next_proto)) || next_proto == IP_PROTOCOL_IP6_NONXT) { if (find_hdr < 0) break; return -1; - } + } if (next_proto == IP_PROTOCOL_IPV6_FRAGMENTATION) { - ip6_frag_hdr_t *frag_hdr = (ip6_frag_hdr_t *)next_header; - u16 frag_off = ip6_frag_hdr_offset(frag_hdr); - /* Non first fragment return -1 */ + ip6_frag_hdr_t *frag_hdr = (ip6_frag_hdr_t *) next_header; + u16 frag_off = ip6_frag_hdr_offset (frag_hdr); + /* Non first fragment return -1 */ if (frag_off) - return(-1); - exthdr_len = sizeof(ip6_frag_hdr_t); - temp_nxthdr = next_header + exthdr_len; + return (-1); + exthdr_len = sizeof (ip6_frag_hdr_t); + temp_nxthdr = next_header + exthdr_len; } else if (next_proto == IP_PROTOCOL_IPSEC_AH) { - exthdr_len = ip6_ext_authhdr_len(((ip6_ext_header_t *)next_header)); + exthdr_len = + ip6_ext_authhdr_len (((ip6_ext_header_t *) next_header)); temp_nxthdr = next_header + exthdr_len; } else { - exthdr_len = ip6_ext_header_len(((ip6_ext_header_t *)next_header)); + exthdr_len = + ip6_ext_header_len (((ip6_ext_header_t *) next_header)); temp_nxthdr = next_header + exthdr_len; } - next_proto = ((ip6_ext_header_t *)next_header)->next_hdr; - next_header = temp_nxthdr; - cur_offset += exthdr_len; + next_proto = ((ip6_ext_header_t *) next_header)->next_hdr; + next_header = temp_nxthdr; + cur_offset += exthdr_len; } *offset = cur_offset; - return(next_proto); + return (next_proto); } static uword -ip6_local (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) +ip6_local (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { - ip6_main_t * im = &ip6_main; - ip_lookup_main_t * lm = &im->lookup_main; + ip6_main_t *im = &ip6_main; + ip_lookup_main_t *lm = &im->lookup_main; ip_local_next_t next_index; - u32 * from, * to_next, n_left_from, n_left_to_next; - vlib_node_runtime_t * error_node = vlib_node_get_runtime (vm, ip6_input_node.index); + u32 *from, *to_next, n_left_from, n_left_to_next; + vlib_node_runtime_t *error_node = + vlib_node_get_runtime (vm, ip6_input_node.index); from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; @@ -1321,14 +1334,13 @@ ip6_local (vlib_main_t * vm, while (n_left_from > 0) { - vlib_get_next_frame (vm, node, next_index, - to_next, n_left_to_next); + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); while (n_left_from >= 4 && n_left_to_next >= 2) { - vlib_buffer_t * p0, * p1; - ip6_header_t * ip0, * ip1; - udp_header_t * udp0, * udp1; + vlib_buffer_t *p0, *p1; + ip6_header_t *ip0, *ip1; + udp_header_t *udp0, *udp1; u32 pi0, ip_len0, udp_len0, flags0, next0; u32 pi1, ip_len1, udp_len1, flags1, next1; i32 len_diff0, len_diff1; @@ -1364,35 +1376,43 @@ ip6_local (vlib_main_t * vm, len_diff1 = 0; /* Skip HBH local processing */ - if (PREDICT_FALSE (ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) + if (PREDICT_FALSE + (ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) { - ip6_hop_by_hop_ext_t *ext_hdr = (ip6_hop_by_hop_ext_t *)ip6_next_header(ip0); + ip6_hop_by_hop_ext_t *ext_hdr = + (ip6_hop_by_hop_ext_t *) ip6_next_header (ip0); next0 = lm->local_next_by_ip_protocol[ext_hdr->next_hdr]; type0 = lm->builtin_protocol_by_ip_protocol[ext_hdr->next_hdr]; } - if (PREDICT_FALSE (ip1->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) + if (PREDICT_FALSE + (ip1->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) { - ip6_hop_by_hop_ext_t *ext_hdr = (ip6_hop_by_hop_ext_t *)ip6_next_header(ip1); + ip6_hop_by_hop_ext_t *ext_hdr = + (ip6_hop_by_hop_ext_t *) ip6_next_header (ip1); next1 = lm->local_next_by_ip_protocol[ext_hdr->next_hdr]; type1 = lm->builtin_protocol_by_ip_protocol[ext_hdr->next_hdr]; } - if (PREDICT_TRUE(IP_PROTOCOL_UDP == ip6_locate_header(p0, ip0, - IP_PROTOCOL_UDP, &udp_offset0))) + if (PREDICT_TRUE (IP_PROTOCOL_UDP == ip6_locate_header (p0, ip0, + IP_PROTOCOL_UDP, + &udp_offset0))) { - udp0 = (udp_header_t *)((u8 *)ip0 + udp_offset0); + udp0 = (udp_header_t *) ((u8 *) ip0 + udp_offset0); /* Don't verify UDP checksum for packets with explicit zero checksum. */ - good_l4_checksum0 |= type0 == IP_BUILTIN_PROTOCOL_UDP && udp0->checksum == 0; + good_l4_checksum0 |= type0 == IP_BUILTIN_PROTOCOL_UDP + && udp0->checksum == 0; /* Verify UDP length. */ ip_len0 = clib_net_to_host_u16 (ip0->payload_length); udp_len0 = clib_net_to_host_u16 (udp0->length); len_diff0 = ip_len0 - udp_len0; } - if (PREDICT_TRUE(IP_PROTOCOL_UDP == ip6_locate_header(p1, ip1, - IP_PROTOCOL_UDP, &udp_offset1))) + if (PREDICT_TRUE (IP_PROTOCOL_UDP == ip6_locate_header (p1, ip1, + IP_PROTOCOL_UDP, + &udp_offset1))) { - udp1 = (udp_header_t *)((u8 *)ip1 + udp_offset1); + udp1 = (udp_header_t *) ((u8 *) ip1 + udp_offset1); /* Don't verify UDP checksum for packets with explicit zero checksum. */ - good_l4_checksum1 |= type1 == IP_BUILTIN_PROTOCOL_UDP && udp1->checksum == 0; + good_l4_checksum1 |= type1 == IP_BUILTIN_PROTOCOL_UDP + && udp1->checksum == 0; /* Verify UDP length. */ ip_len1 = clib_net_to_host_u16 (ip1->payload_length); udp_len1 = clib_net_to_host_u16 (udp1->length); @@ -1406,16 +1426,16 @@ ip6_local (vlib_main_t * vm, len_diff1 = type1 == IP_BUILTIN_PROTOCOL_UDP ? len_diff1 : 0; if (PREDICT_FALSE (type0 != IP_BUILTIN_PROTOCOL_UNKNOWN - && ! good_l4_checksum0 - && ! (flags0 & IP_BUFFER_L4_CHECKSUM_COMPUTED))) + && !good_l4_checksum0 + && !(flags0 & IP_BUFFER_L4_CHECKSUM_COMPUTED))) { flags0 = ip6_tcp_udp_icmp_validate_checksum (vm, p0); good_l4_checksum0 = (flags0 & IP_BUFFER_L4_CHECKSUM_CORRECT) != 0; } if (PREDICT_FALSE (type1 != IP_BUILTIN_PROTOCOL_UNKNOWN - && ! good_l4_checksum1 - && ! (flags1 & IP_BUFFER_L4_CHECKSUM_COMPUTED))) + && !good_l4_checksum1 + && !(flags1 & IP_BUFFER_L4_CHECKSUM_COMPUTED))) { flags1 = ip6_tcp_udp_icmp_validate_checksum (vm, p1); good_l4_checksum1 = @@ -1427,38 +1447,38 @@ ip6_local (vlib_main_t * vm, error0 = len_diff0 < 0 ? IP6_ERROR_UDP_LENGTH : error0; error1 = len_diff1 < 0 ? IP6_ERROR_UDP_LENGTH : error1; - ASSERT (IP6_ERROR_UDP_CHECKSUM + IP_BUILTIN_PROTOCOL_UDP == IP6_ERROR_UDP_CHECKSUM); - ASSERT (IP6_ERROR_UDP_CHECKSUM + IP_BUILTIN_PROTOCOL_ICMP == IP6_ERROR_ICMP_CHECKSUM); - error0 = (! good_l4_checksum0 - ? IP6_ERROR_UDP_CHECKSUM + type0 - : error0); - error1 = (! good_l4_checksum1 - ? IP6_ERROR_UDP_CHECKSUM + type1 - : error1); + ASSERT (IP6_ERROR_UDP_CHECKSUM + IP_BUILTIN_PROTOCOL_UDP == + IP6_ERROR_UDP_CHECKSUM); + ASSERT (IP6_ERROR_UDP_CHECKSUM + IP_BUILTIN_PROTOCOL_ICMP == + IP6_ERROR_ICMP_CHECKSUM); + error0 = + (!good_l4_checksum0 ? IP6_ERROR_UDP_CHECKSUM + type0 : error0); + error1 = + (!good_l4_checksum1 ? IP6_ERROR_UDP_CHECKSUM + type1 : error1); /* Drop packets from unroutable hosts. */ - /* If this is a neighbor solicitation (ICMP), skip source RPF check */ + /* If this is a neighbor solicitation (ICMP), skip source RPF check */ if (error0 == IP6_ERROR_UNKNOWN_PROTOCOL && type0 != IP_BUILTIN_PROTOCOL_ICMP && - !ip6_address_is_link_local_unicast(&ip0->src_address)) + !ip6_address_is_link_local_unicast (&ip0->src_address)) { u32 src_adj_index0 = ip6_src_lookup_for_packet (im, p0, ip0); error0 = (ADJ_INDEX_INVALID == src_adj_index0 - ? IP6_ERROR_SRC_LOOKUP_MISS - : error0); + ? IP6_ERROR_SRC_LOOKUP_MISS : error0); } if (error1 == IP6_ERROR_UNKNOWN_PROTOCOL && type1 != IP_BUILTIN_PROTOCOL_ICMP && - !ip6_address_is_link_local_unicast(&ip1->src_address)) + !ip6_address_is_link_local_unicast (&ip1->src_address)) { u32 src_adj_index1 = ip6_src_lookup_for_packet (im, p1, ip1); error1 = (ADJ_INDEX_INVALID == src_adj_index1 - ? IP6_ERROR_SRC_LOOKUP_MISS - : error1); + ? IP6_ERROR_SRC_LOOKUP_MISS : error1); } - next0 = error0 != IP6_ERROR_UNKNOWN_PROTOCOL ? IP_LOCAL_NEXT_DROP : next0; - next1 = error1 != IP6_ERROR_UNKNOWN_PROTOCOL ? IP_LOCAL_NEXT_DROP : next1; + next0 = + error0 != IP6_ERROR_UNKNOWN_PROTOCOL ? IP_LOCAL_NEXT_DROP : next0; + next1 = + error1 != IP6_ERROR_UNKNOWN_PROTOCOL ? IP_LOCAL_NEXT_DROP : next1; p0->error = error_node->errors[error0]; p1->error = error_node->errors[error1]; @@ -1470,13 +1490,13 @@ ip6_local (vlib_main_t * vm, while (n_left_from > 0 && n_left_to_next > 0) { - vlib_buffer_t * p0; - ip6_header_t * ip0; - udp_header_t * udp0; + vlib_buffer_t *p0; + ip6_header_t *ip0; + udp_header_t *udp0; u32 pi0, ip_len0, udp_len0, flags0, next0; i32 len_diff0; u8 error0, type0, good_l4_checksum0; - u32 udp_offset0; + u32 udp_offset0; pi0 = to_next[0] = from[0]; from += 1; @@ -1497,18 +1517,22 @@ ip6_local (vlib_main_t * vm, len_diff0 = 0; /* Skip HBH local processing */ - if (PREDICT_FALSE (ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) + if (PREDICT_FALSE + (ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)) { - ip6_hop_by_hop_ext_t *ext_hdr = (ip6_hop_by_hop_ext_t *)ip6_next_header(ip0); + ip6_hop_by_hop_ext_t *ext_hdr = + (ip6_hop_by_hop_ext_t *) ip6_next_header (ip0); next0 = lm->local_next_by_ip_protocol[ext_hdr->next_hdr]; type0 = lm->builtin_protocol_by_ip_protocol[ext_hdr->next_hdr]; } - if (PREDICT_TRUE(IP_PROTOCOL_UDP == ip6_locate_header(p0, ip0, - IP_PROTOCOL_UDP, &udp_offset0))) + if (PREDICT_TRUE (IP_PROTOCOL_UDP == ip6_locate_header (p0, ip0, + IP_PROTOCOL_UDP, + &udp_offset0))) { - udp0 = (udp_header_t *)((u8 *)ip0 + udp_offset0); + udp0 = (udp_header_t *) ((u8 *) ip0 + udp_offset0); /* Don't verify UDP checksum for packets with explicit zero checksum. */ - good_l4_checksum0 |= type0 == IP_BUILTIN_PROTOCOL_UDP && udp0->checksum == 0; + good_l4_checksum0 |= type0 == IP_BUILTIN_PROTOCOL_UDP + && udp0->checksum == 0; /* Verify UDP length. */ ip_len0 = clib_net_to_host_u16 (ip0->payload_length); udp_len0 = clib_net_to_host_u16 (udp0->length); @@ -1519,8 +1543,8 @@ ip6_local (vlib_main_t * vm, len_diff0 = type0 == IP_BUILTIN_PROTOCOL_UDP ? len_diff0 : 0; if (PREDICT_FALSE (type0 != IP_BUILTIN_PROTOCOL_UNKNOWN - && ! good_l4_checksum0 - && ! (flags0 & IP_BUFFER_L4_CHECKSUM_COMPUTED))) + && !good_l4_checksum0 + && !(flags0 & IP_BUFFER_L4_CHECKSUM_COMPUTED))) { flags0 = ip6_tcp_udp_icmp_validate_checksum (vm, p0); good_l4_checksum0 = @@ -1531,24 +1555,25 @@ ip6_local (vlib_main_t * vm, error0 = len_diff0 < 0 ? IP6_ERROR_UDP_LENGTH : error0; - ASSERT (IP6_ERROR_UDP_CHECKSUM + IP_BUILTIN_PROTOCOL_UDP == IP6_ERROR_UDP_CHECKSUM); - ASSERT (IP6_ERROR_UDP_CHECKSUM + IP_BUILTIN_PROTOCOL_ICMP == IP6_ERROR_ICMP_CHECKSUM); - error0 = (! good_l4_checksum0 - ? IP6_ERROR_UDP_CHECKSUM + type0 - : error0); + ASSERT (IP6_ERROR_UDP_CHECKSUM + IP_BUILTIN_PROTOCOL_UDP == + IP6_ERROR_UDP_CHECKSUM); + ASSERT (IP6_ERROR_UDP_CHECKSUM + IP_BUILTIN_PROTOCOL_ICMP == + IP6_ERROR_ICMP_CHECKSUM); + error0 = + (!good_l4_checksum0 ? IP6_ERROR_UDP_CHECKSUM + type0 : error0); - /* If this is a neighbor solicitation (ICMP), skip source RPF check */ + /* If this is a neighbor solicitation (ICMP), skip source RPF check */ if (error0 == IP6_ERROR_UNKNOWN_PROTOCOL && type0 != IP_BUILTIN_PROTOCOL_ICMP && - !ip6_address_is_link_local_unicast(&ip0->src_address)) + !ip6_address_is_link_local_unicast (&ip0->src_address)) { u32 src_adj_index0 = ip6_src_lookup_for_packet (im, p0, ip0); error0 = (ADJ_INDEX_INVALID == src_adj_index0 - ? IP6_ERROR_SRC_LOOKUP_MISS - : error0); + ? IP6_ERROR_SRC_LOOKUP_MISS : error0); } - next0 = error0 != IP6_ERROR_UNKNOWN_PROTOCOL ? IP_LOCAL_NEXT_DROP : next0; + next0 = + error0 != IP6_ERROR_UNKNOWN_PROTOCOL ? IP_LOCAL_NEXT_DROP : next0; p0->error = error_node->errors[error0]; @@ -1563,41 +1588,47 @@ ip6_local (vlib_main_t * vm, return frame->n_vectors; } -VLIB_REGISTER_NODE (ip6_local_node,static) = { +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (ip6_local_node, static) = +{ .function = ip6_local, .name = "ip6-local", .vector_size = sizeof (u32), - .format_trace = format_ip6_forward_next_trace, - .n_next_nodes = IP_LOCAL_N_NEXT, - .next_nodes = { + .next_nodes = + { [IP_LOCAL_NEXT_DROP] = "error-drop", [IP_LOCAL_NEXT_PUNT] = "error-punt", [IP_LOCAL_NEXT_UDP_LOOKUP] = "ip6-udp-lookup", [IP_LOCAL_NEXT_ICMP] = "ip6-icmp-input", }, }; +/* *INDENT-ON* */ -VLIB_NODE_FUNCTION_MULTIARCH (ip6_local_node, ip6_local) +VLIB_NODE_FUNCTION_MULTIARCH (ip6_local_node, ip6_local); -void ip6_register_protocol (u32 protocol, u32 node_index) +void +ip6_register_protocol (u32 protocol, u32 node_index) { - vlib_main_t * vm = vlib_get_main(); - ip6_main_t * im = &ip6_main; - ip_lookup_main_t * lm = &im->lookup_main; + vlib_main_t *vm = vlib_get_main (); + ip6_main_t *im = &ip6_main; + ip_lookup_main_t *lm = &im->lookup_main; ASSERT (protocol < ARRAY_LEN (lm->local_next_by_ip_protocol)); - lm->local_next_by_ip_protocol[protocol] = vlib_node_add_next (vm, ip6_local_node.index, node_index); + lm->local_next_by_ip_protocol[protocol] = + vlib_node_add_next (vm, ip6_local_node.index, node_index); } -typedef enum { +typedef enum +{ IP6_DISCOVER_NEIGHBOR_NEXT_DROP, IP6_DISCOVER_NEIGHBOR_NEXT_REPLY_TX, IP6_DISCOVER_NEIGHBOR_N_NEXT, } ip6_discover_neighbor_next_t; -typedef enum { +typedef enum +{ IP6_DISCOVER_NEIGHBOR_ERROR_DROP, IP6_DISCOVER_NEIGHBOR_ERROR_REQUEST_SENT, IP6_DISCOVER_NEIGHBOR_ERROR_NO_SOURCE_ADDRESS, @@ -1606,13 +1637,12 @@ typedef enum { static uword ip6_discover_neighbor_inline (vlib_main_t * vm, vlib_node_runtime_t * node, - vlib_frame_t * frame, - int is_glean) + vlib_frame_t * frame, int is_glean) { - vnet_main_t * vnm = vnet_get_main(); - ip6_main_t * im = &ip6_main; - ip_lookup_main_t * lm = &im->lookup_main; - u32 * from, * to_next_drop; + vnet_main_t *vnm = vnet_get_main (); + ip6_main_t *im = &ip6_main; + ip_lookup_main_t *lm = &im->lookup_main; + u32 *from, *to_next_drop; uword n_left_from, n_left_to_next_drop; static f64 time_last_seed_change = -1e100; static u32 hash_seeds[3]; @@ -1627,8 +1657,8 @@ ip6_discover_neighbor_inline (vlib_main_t * vm, if (time_now - time_last_seed_change > 1e-3) { uword i; - u32 * r = clib_random_buffer_get_data (&vm->random_buffer, - sizeof (hash_seeds)); + u32 *r = clib_random_buffer_get_data (&vm->random_buffer, + sizeof (hash_seeds)); for (i = 0; i < ARRAY_LEN (hash_seeds); i++) hash_seeds[i] = r[i]; @@ -1649,12 +1679,12 @@ ip6_discover_neighbor_inline (vlib_main_t * vm, while (n_left_from > 0 && n_left_to_next_drop > 0) { - vlib_buffer_t * p0; - ip6_header_t * ip0; + vlib_buffer_t *p0; + ip6_header_t *ip0; u32 pi0, adj_index0, a0, b0, c0, m0, sw_if_index0, drop0; uword bm0; - ip_adjacency_t * adj0; - vnet_hw_interface_t * hw_if0; + ip_adjacency_t *adj0; + vnet_hw_interface_t *hw_if0; u32 next0; pi0 = from[0]; @@ -1669,8 +1699,10 @@ ip6_discover_neighbor_inline (vlib_main_t * vm, if (!is_glean) { - ip0->dst_address.as_u64[0] = adj0->sub_type.nbr.next_hop.ip6.as_u64[0]; - ip0->dst_address.as_u64[1] = adj0->sub_type.nbr.next_hop.ip6.as_u64[1]; + ip0->dst_address.as_u64[0] = + adj0->sub_type.nbr.next_hop.ip6.as_u64[0]; + ip0->dst_address.as_u64[1] = + adj0->sub_type.nbr.next_hop.ip6.as_u64[1]; } a0 = hash_seeds[0]; @@ -1707,15 +1739,15 @@ ip6_discover_neighbor_inline (vlib_main_t * vm, to_next_drop += 1; n_left_to_next_drop -= 1; - hw_if0 = vnet_get_sup_hw_interface (vnm, sw_if_index0); + hw_if0 = vnet_get_sup_hw_interface (vnm, sw_if_index0); - /* If the interface is link-down, drop the pkt */ - if (!(hw_if0->flags & VNET_HW_INTERFACE_FLAG_LINK_UP)) - drop0 = 1; + /* If the interface is link-down, drop the pkt */ + if (!(hw_if0->flags & VNET_HW_INTERFACE_FLAG_LINK_UP)) + drop0 = 1; p0->error = - node->errors[drop0 ? IP6_DISCOVER_NEIGHBOR_ERROR_DROP - : IP6_DISCOVER_NEIGHBOR_ERROR_REQUEST_SENT]; + node->errors[drop0 ? IP6_DISCOVER_NEIGHBOR_ERROR_DROP + : IP6_DISCOVER_NEIGHBOR_ERROR_REQUEST_SENT]; if (drop0) continue; @@ -1728,32 +1760,33 @@ ip6_discover_neighbor_inline (vlib_main_t * vm, { u32 bi0 = 0; - icmp6_neighbor_solicitation_header_t * h0; - vlib_buffer_t * b0; + icmp6_neighbor_solicitation_header_t *h0; + vlib_buffer_t *b0; h0 = vlib_packet_template_get_packet - (vm, &im->discover_neighbor_packet_template, &bi0); + (vm, &im->discover_neighbor_packet_template, &bi0); /* - * Build ethernet header. - * Choose source address based on destination lookup - * adjacency. - */ + * Build ethernet header. + * Choose source address based on destination lookup + * adjacency. + */ if (ip6_src_address_for_packet (lm, sw_if_index0, &h0->ip.src_address)) { /* There is no address on the interface */ - p0->error = node->errors[IP6_DISCOVER_NEIGHBOR_ERROR_NO_SOURCE_ADDRESS]; - vlib_buffer_free(vm, &bi0, 1); + p0->error = + node->errors[IP6_DISCOVER_NEIGHBOR_ERROR_NO_SOURCE_ADDRESS]; + vlib_buffer_free (vm, &bi0, 1); continue; } /* - * Destination address is a solicited node multicast address. - * We need to fill in - * the low 24 bits with low 24 bits of target's address. - */ + * Destination address is a solicited node multicast address. + * We need to fill in + * the low 24 bits with low 24 bits of target's address. + */ h0->ip.dst_address.as_u8[13] = ip0->dst_address.as_u8[13]; h0->ip.dst_address.as_u8[14] = ip0->dst_address.as_u8[14]; h0->ip.dst_address.as_u8[15] = ip0->dst_address.as_u8[15]; @@ -1761,24 +1794,23 @@ ip6_discover_neighbor_inline (vlib_main_t * vm, h0->neighbor.target_address = ip0->dst_address; clib_memcpy (h0->link_layer_option.ethernet_address, - hw_if0->hw_address, vec_len (hw_if0->hw_address)); + hw_if0->hw_address, vec_len (hw_if0->hw_address)); - /* $$$$ appears we need this; why is the checksum non-zero? */ - h0->neighbor.icmp.checksum = 0; + /* $$$$ appears we need this; why is the checksum non-zero? */ + h0->neighbor.icmp.checksum = 0; h0->neighbor.icmp.checksum = - ip6_tcp_udp_icmp_compute_checksum (vm, 0, &h0->ip, - &bogus_length); + ip6_tcp_udp_icmp_compute_checksum (vm, 0, &h0->ip, + &bogus_length); - ASSERT (bogus_length == 0); + ASSERT (bogus_length == 0); vlib_buffer_copy_trace_flag (vm, p0, bi0); b0 = vlib_get_buffer (vm, bi0); vnet_buffer (b0)->sw_if_index[VLIB_TX] - = vnet_buffer (p0)->sw_if_index[VLIB_TX]; + = vnet_buffer (p0)->sw_if_index[VLIB_TX]; /* Add rewrite/encap string. */ - vnet_rewrite_one_header (adj0[0], h0, - sizeof (ethernet_header_t)); + vnet_rewrite_one_header (adj0[0], h0, sizeof (ethernet_header_t)); vlib_buffer_advance (b0, -adj0->rewrite_header.data_bytes); next0 = IP6_DISCOVER_NEIGHBOR_NEXT_REPLY_TX; @@ -1788,7 +1820,7 @@ ip6_discover_neighbor_inline (vlib_main_t * vm, } vlib_put_next_frame (vm, node, IP6_DISCOVER_NEIGHBOR_NEXT_DROP, - n_left_to_next_drop); + n_left_to_next_drop); } return frame->n_vectors; @@ -1796,74 +1828,72 @@ ip6_discover_neighbor_inline (vlib_main_t * vm, static uword ip6_discover_neighbor (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) + vlib_node_runtime_t * node, vlib_frame_t * frame) { - return (ip6_discover_neighbor_inline(vm, node, frame, 0)); + return (ip6_discover_neighbor_inline (vm, node, frame, 0)); } static uword -ip6_glean (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) +ip6_glean (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { - return (ip6_discover_neighbor_inline(vm, node, frame, 1)); + return (ip6_discover_neighbor_inline (vm, node, frame, 1)); } -static char * ip6_discover_neighbor_error_strings[] = { +static char *ip6_discover_neighbor_error_strings[] = { [IP6_DISCOVER_NEIGHBOR_ERROR_DROP] = "address overflow drops", - [IP6_DISCOVER_NEIGHBOR_ERROR_REQUEST_SENT] - = "neighbor solicitations sent", + [IP6_DISCOVER_NEIGHBOR_ERROR_REQUEST_SENT] = "neighbor solicitations sent", [IP6_DISCOVER_NEIGHBOR_ERROR_NO_SOURCE_ADDRESS] = "no source address for ND solicitation", }; -VLIB_REGISTER_NODE (ip6_discover_neighbor_node) = { +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (ip6_discover_neighbor_node) = +{ .function = ip6_discover_neighbor, .name = "ip6-discover-neighbor", .vector_size = sizeof (u32), - .format_trace = format_ip6_forward_next_trace, - .n_errors = ARRAY_LEN (ip6_discover_neighbor_error_strings), .error_strings = ip6_discover_neighbor_error_strings, - .n_next_nodes = IP6_DISCOVER_NEIGHBOR_N_NEXT, - .next_nodes = { + .next_nodes = + { [IP6_DISCOVER_NEIGHBOR_NEXT_DROP] = "error-drop", [IP6_DISCOVER_NEIGHBOR_NEXT_REPLY_TX] = "interface-output", }, }; +/* *INDENT-ON* */ -VLIB_REGISTER_NODE (ip6_glean_node) = { +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (ip6_glean_node) = +{ .function = ip6_glean, .name = "ip6-glean", .vector_size = sizeof (u32), - .format_trace = format_ip6_forward_next_trace, - .n_errors = ARRAY_LEN (ip6_discover_neighbor_error_strings), .error_strings = ip6_discover_neighbor_error_strings, - .n_next_nodes = IP6_DISCOVER_NEIGHBOR_N_NEXT, - .next_nodes = { + .next_nodes = + { [IP6_DISCOVER_NEIGHBOR_NEXT_DROP] = "error-drop", [IP6_DISCOVER_NEIGHBOR_NEXT_REPLY_TX] = "interface-output", }, }; +/* *INDENT-ON* */ clib_error_t * ip6_probe_neighbor (vlib_main_t * vm, ip6_address_t * dst, u32 sw_if_index) { - vnet_main_t * vnm = vnet_get_main(); - ip6_main_t * im = &ip6_main; - icmp6_neighbor_solicitation_header_t * h; - ip6_address_t * src; - ip_interface_address_t * ia; - ip_adjacency_t * adj; - vnet_hw_interface_t * hi; - vnet_sw_interface_t * si; - vlib_buffer_t * b; + vnet_main_t *vnm = vnet_get_main (); + ip6_main_t *im = &ip6_main; + icmp6_neighbor_solicitation_header_t *h; + ip6_address_t *src; + ip_interface_address_t *ia; + ip_adjacency_t *adj; + vnet_hw_interface_t *hi; + vnet_sw_interface_t *si; + vlib_buffer_t *b; u32 bi = 0; int bogus_length; @@ -1872,22 +1902,26 @@ ip6_probe_neighbor (vlib_main_t * vm, ip6_address_t * dst, u32 sw_if_index) if (!(si->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)) { return clib_error_return (0, "%U: interface %U down", - format_ip6_address, dst, - format_vnet_sw_if_index_name, vnm, - sw_if_index); + format_ip6_address, dst, + format_vnet_sw_if_index_name, vnm, + sw_if_index); } - src = ip6_interface_address_matching_destination (im, dst, sw_if_index, &ia); - if (! src) + src = + ip6_interface_address_matching_destination (im, dst, sw_if_index, &ia); + if (!src) { vnm->api_errno = VNET_API_ERROR_NO_MATCHING_INTERFACE; return clib_error_return - (0, "no matching interface address for destination %U (interface %U)", - format_ip6_address, dst, - format_vnet_sw_if_index_name, vnm, sw_if_index); + (0, "no matching interface address for destination %U (interface %U)", + format_ip6_address, dst, + format_vnet_sw_if_index_name, vnm, sw_if_index); } - h = vlib_packet_template_get_packet (vm, &im->discover_neighbor_packet_template, &bi); + h = + vlib_packet_template_get_packet (vm, + &im->discover_neighbor_packet_template, + &bi); hi = vnet_get_sup_hw_interface (vnm, sw_if_index); @@ -1900,14 +1934,16 @@ ip6_probe_neighbor (vlib_main_t * vm, ip6_address_t * dst, u32 sw_if_index) h->ip.src_address = src[0]; h->neighbor.target_address = dst[0]; - clib_memcpy (h->link_layer_option.ethernet_address, hi->hw_address, vec_len (hi->hw_address)); + clib_memcpy (h->link_layer_option.ethernet_address, hi->hw_address, + vec_len (hi->hw_address)); h->neighbor.icmp.checksum = ip6_tcp_udp_icmp_compute_checksum (vm, 0, &h->ip, &bogus_length); - ASSERT(bogus_length == 0); + ASSERT (bogus_length == 0); b = vlib_get_buffer (vm, bi); - vnet_buffer (b)->sw_if_index[VLIB_RX] = vnet_buffer (b)->sw_if_index[VLIB_TX] = sw_if_index; + vnet_buffer (b)->sw_if_index[VLIB_RX] = + vnet_buffer (b)->sw_if_index[VLIB_TX] = sw_if_index; /* Add encapsulation string for software interface (e.g. ethernet header). */ adj = ip_get_adjacency (&im->lookup_main, ia->neighbor_probe_adj_index); @@ -1915,8 +1951,8 @@ ip6_probe_neighbor (vlib_main_t * vm, ip6_address_t * dst, u32 sw_if_index) vlib_buffer_advance (b, -adj->rewrite_header.data_bytes); { - vlib_frame_t * f = vlib_get_frame_to_node (vm, hi->output_node_index); - u32 * to_next = vlib_frame_vector_args (f); + vlib_frame_t *f = vlib_get_frame_to_node (vm, hi->output_node_index); + u32 *to_next = vlib_frame_vector_args (f); to_next[0] = bi; f->n_vectors = 1; vlib_put_frame_to_node (vm, hi->output_node_index, f); @@ -1925,7 +1961,8 @@ ip6_probe_neighbor (vlib_main_t * vm, ip6_address_t * dst, u32 sw_if_index) return /* no error */ 0; } -typedef enum { +typedef enum +{ IP6_REWRITE_NEXT_DROP, IP6_REWRITE_NEXT_ICMP_ERROR, } ip6_rewrite_next_t; @@ -1933,17 +1970,17 @@ typedef enum { always_inline uword ip6_rewrite_inline (vlib_main_t * vm, vlib_node_runtime_t * node, - vlib_frame_t * frame, - int is_midchain) + vlib_frame_t * frame, int is_midchain) { - ip_lookup_main_t * lm = &ip6_main.lookup_main; - u32 * from = vlib_frame_vector_args (frame); - u32 n_left_from, n_left_to_next, * to_next, next_index; - vlib_node_runtime_t * error_node = vlib_node_get_runtime (vm, ip6_input_node.index); + ip_lookup_main_t *lm = &ip6_main.lookup_main; + u32 *from = vlib_frame_vector_args (frame); + u32 n_left_from, n_left_to_next, *to_next, next_index; + vlib_node_runtime_t *error_node = + vlib_node_get_runtime (vm, ip6_input_node.index); n_left_from = frame->n_vectors; next_index = node->cached_next_index; - u32 cpu_index = os_get_cpu_number(); + u32 cpu_index = os_get_cpu_number (); while (n_left_from > 0) { @@ -1951,16 +1988,16 @@ ip6_rewrite_inline (vlib_main_t * vm, while (n_left_from >= 4 && n_left_to_next >= 2) { - ip_adjacency_t * adj0, * adj1; - vlib_buffer_t * p0, * p1; - ip6_header_t * ip0, * ip1; + ip_adjacency_t *adj0, *adj1; + vlib_buffer_t *p0, *p1; + ip6_header_t *ip0, *ip1; u32 pi0, rw_len0, next0, error0, adj_index0; u32 pi1, rw_len1, next1, error1, adj_index1; - u32 tx_sw_if_index0, tx_sw_if_index1; + u32 tx_sw_if_index0, tx_sw_if_index1; /* Prefetch next iteration. */ { - vlib_buffer_t * p2, * p3; + vlib_buffer_t *p2, *p3; p2 = vlib_get_buffer (vm, from[2]); p3 = vlib_get_buffer (vm, from[3]); @@ -1989,18 +2026,18 @@ ip6_rewrite_inline (vlib_main_t * vm, adj_index0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX]; adj_index1 = vnet_buffer (p1)->ip.adj_index[VLIB_TX]; - /* We should never rewrite a pkt using the MISS adjacency */ - ASSERT(adj_index0 && adj_index1); + /* We should never rewrite a pkt using the MISS adjacency */ + ASSERT (adj_index0 && adj_index1); ip0 = vlib_buffer_get_current (p0); ip1 = vlib_buffer_get_current (p1); error0 = error1 = IP6_ERROR_NONE; - next0 = next1 = IP6_REWRITE_NEXT_DROP; + next0 = next1 = IP6_REWRITE_NEXT_DROP; - if (PREDICT_TRUE(!(p0->flags & VNET_BUFFER_LOCALLY_ORIGINATED))) + if (PREDICT_TRUE (!(p0->flags & VNET_BUFFER_LOCALLY_ORIGINATED))) { - i32 hop_limit0 = ip0->hop_limit; + i32 hop_limit0 = ip0->hop_limit; /* Input node should have reject packets with hop limit 0. */ ASSERT (ip0->hop_limit > 0); @@ -2009,25 +2046,26 @@ ip6_rewrite_inline (vlib_main_t * vm, ip0->hop_limit = hop_limit0; - /* - * If the hop count drops below 1 when forwarding, generate - * an ICMP response. - */ - if (PREDICT_FALSE(hop_limit0 <= 0)) - { - error0 = IP6_ERROR_TIME_EXPIRED; - next0 = IP6_REWRITE_NEXT_ICMP_ERROR; - vnet_buffer (p0)->sw_if_index[VLIB_TX] = (u32)~0; - icmp6_error_set_vnet_buffer(p0, ICMP6_time_exceeded, - ICMP6_time_exceeded_ttl_exceeded_in_transit, 0); - } + /* + * If the hop count drops below 1 when forwarding, generate + * an ICMP response. + */ + if (PREDICT_FALSE (hop_limit0 <= 0)) + { + error0 = IP6_ERROR_TIME_EXPIRED; + next0 = IP6_REWRITE_NEXT_ICMP_ERROR; + vnet_buffer (p0)->sw_if_index[VLIB_TX] = (u32) ~ 0; + icmp6_error_set_vnet_buffer (p0, ICMP6_time_exceeded, + ICMP6_time_exceeded_ttl_exceeded_in_transit, + 0); + } } - else - { - p0->flags &= ~VNET_BUFFER_LOCALLY_ORIGINATED; - } - if (PREDICT_TRUE(!(p1->flags & VNET_BUFFER_LOCALLY_ORIGINATED))) - { + else + { + p0->flags &= ~VNET_BUFFER_LOCALLY_ORIGINATED; + } + if (PREDICT_TRUE (!(p1->flags & VNET_BUFFER_LOCALLY_ORIGINATED))) + { i32 hop_limit1 = ip1->hop_limit; /* Input node should have reject packets with hop limit 0. */ @@ -2037,89 +2075,89 @@ ip6_rewrite_inline (vlib_main_t * vm, ip1->hop_limit = hop_limit1; - /* - * If the hop count drops below 1 when forwarding, generate - * an ICMP response. - */ - if (PREDICT_FALSE(hop_limit1 <= 0)) - { - error1 = IP6_ERROR_TIME_EXPIRED; - next1 = IP6_REWRITE_NEXT_ICMP_ERROR; - vnet_buffer (p1)->sw_if_index[VLIB_TX] = (u32)~0; - icmp6_error_set_vnet_buffer(p1, ICMP6_time_exceeded, - ICMP6_time_exceeded_ttl_exceeded_in_transit, 0); - } - } - else - { - p1->flags &= ~VNET_BUFFER_LOCALLY_ORIGINATED; - } + /* + * If the hop count drops below 1 when forwarding, generate + * an ICMP response. + */ + if (PREDICT_FALSE (hop_limit1 <= 0)) + { + error1 = IP6_ERROR_TIME_EXPIRED; + next1 = IP6_REWRITE_NEXT_ICMP_ERROR; + vnet_buffer (p1)->sw_if_index[VLIB_TX] = (u32) ~ 0; + icmp6_error_set_vnet_buffer (p1, ICMP6_time_exceeded, + ICMP6_time_exceeded_ttl_exceeded_in_transit, + 0); + } + } + else + { + p1->flags &= ~VNET_BUFFER_LOCALLY_ORIGINATED; + } adj0 = ip_get_adjacency (lm, adj_index0); adj1 = ip_get_adjacency (lm, adj_index1); rw_len0 = adj0[0].rewrite_header.data_bytes; rw_len1 = adj1[0].rewrite_header.data_bytes; - vnet_buffer(p0)->ip.save_rewrite_length = rw_len0; - vnet_buffer(p1)->ip.save_rewrite_length = rw_len1; + vnet_buffer (p0)->ip.save_rewrite_length = rw_len0; + vnet_buffer (p1)->ip.save_rewrite_length = rw_len1; vlib_increment_combined_counter (&adjacency_counters, - cpu_index, - adj_index0, + cpu_index, adj_index0, /* packet increment */ 0, /* byte increment */ rw_len0); vlib_increment_combined_counter (&adjacency_counters, - cpu_index, - adj_index1, + cpu_index, adj_index1, /* packet increment */ 0, /* byte increment */ rw_len1); /* Check MTU of outgoing interface. */ - error0 = (vlib_buffer_length_in_chain (vm, p0) > adj0[0].rewrite_header.max_l3_packet_bytes - ? IP6_ERROR_MTU_EXCEEDED - : error0); - error1 = (vlib_buffer_length_in_chain (vm, p1) > adj1[0].rewrite_header.max_l3_packet_bytes - ? IP6_ERROR_MTU_EXCEEDED - : error1); - - /* Don't adjust the buffer for hop count issue; icmp-error node - * wants to see the IP headerr */ - if (PREDICT_TRUE(error0 == IP6_ERROR_NONE)) - { - p0->current_data -= rw_len0; - p0->current_length += rw_len0; - - tx_sw_if_index0 = adj0[0].rewrite_header.sw_if_index; - vnet_buffer (p0)->sw_if_index[VLIB_TX] = - tx_sw_if_index0; - next0 = adj0[0].rewrite_header.next_index; - - vnet_feature_arc_start(lm->output_feature_arc_index, - tx_sw_if_index0, &next0, p0); - } - if (PREDICT_TRUE(error1 == IP6_ERROR_NONE)) - { - p1->current_data -= rw_len1; - p1->current_length += rw_len1; - - tx_sw_if_index1 = adj1[0].rewrite_header.sw_if_index; - vnet_buffer (p1)->sw_if_index[VLIB_TX] = - tx_sw_if_index1; - next1 = adj1[0].rewrite_header.next_index; - - vnet_feature_arc_start(lm->output_feature_arc_index, - tx_sw_if_index1, &next1, p1); - } + error0 = + (vlib_buffer_length_in_chain (vm, p0) > + adj0[0]. + rewrite_header.max_l3_packet_bytes ? IP6_ERROR_MTU_EXCEEDED : + error0); + error1 = + (vlib_buffer_length_in_chain (vm, p1) > + adj1[0]. + rewrite_header.max_l3_packet_bytes ? IP6_ERROR_MTU_EXCEEDED : + error1); + + /* Don't adjust the buffer for hop count issue; icmp-error node + * wants to see the IP headerr */ + if (PREDICT_TRUE (error0 == IP6_ERROR_NONE)) + { + p0->current_data -= rw_len0; + p0->current_length += rw_len0; + + tx_sw_if_index0 = adj0[0].rewrite_header.sw_if_index; + vnet_buffer (p0)->sw_if_index[VLIB_TX] = tx_sw_if_index0; + next0 = adj0[0].rewrite_header.next_index; + + vnet_feature_arc_start (lm->output_feature_arc_index, + tx_sw_if_index0, &next0, p0); + } + if (PREDICT_TRUE (error1 == IP6_ERROR_NONE)) + { + p1->current_data -= rw_len1; + p1->current_length += rw_len1; + + tx_sw_if_index1 = adj1[0].rewrite_header.sw_if_index; + vnet_buffer (p1)->sw_if_index[VLIB_TX] = tx_sw_if_index1; + next1 = adj1[0].rewrite_header.next_index; + + vnet_feature_arc_start (lm->output_feature_arc_index, + tx_sw_if_index1, &next1, p1); + } /* Guess we are only writing on simple Ethernet header. */ vnet_rewrite_two_headers (adj0[0], adj1[0], - ip0, ip1, - sizeof (ethernet_header_t)); + ip0, ip1, sizeof (ethernet_header_t)); if (is_midchain) - { - adj0->sub_type.midchain.fixup_func(vm, adj0, p0); - adj1->sub_type.midchain.fixup_func(vm, adj1, p1); - } + { + adj0->sub_type.midchain.fixup_func (vm, adj0, p0); + adj1->sub_type.midchain.fixup_func (vm, adj1, p1); + } vlib_validate_buffer_enqueue_x2 (vm, node, next_index, to_next, n_left_to_next, @@ -2128,12 +2166,12 @@ ip6_rewrite_inline (vlib_main_t * vm, while (n_left_from > 0 && n_left_to_next > 0) { - ip_adjacency_t * adj0; - vlib_buffer_t * p0; - ip6_header_t * ip0; + ip_adjacency_t *adj0; + vlib_buffer_t *p0; + ip6_header_t *ip0; u32 pi0, rw_len0; u32 adj_index0, next0, error0; - u32 tx_sw_if_index0; + u32 tx_sw_if_index0; pi0 = to_next[0] = from[0]; @@ -2141,18 +2179,18 @@ ip6_rewrite_inline (vlib_main_t * vm, adj_index0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX]; - /* We should never rewrite a pkt using the MISS adjacency */ - ASSERT(adj_index0); + /* We should never rewrite a pkt using the MISS adjacency */ + ASSERT (adj_index0); adj0 = ip_get_adjacency (lm, adj_index0); ip0 = vlib_buffer_get_current (p0); error0 = IP6_ERROR_NONE; - next0 = IP6_REWRITE_NEXT_DROP; + next0 = IP6_REWRITE_NEXT_DROP; /* Check hop limit */ - if (PREDICT_TRUE(!(p0->flags & VNET_BUFFER_LOCALLY_ORIGINATED))) + if (PREDICT_TRUE (!(p0->flags & VNET_BUFFER_LOCALLY_ORIGINATED))) { i32 hop_limit0 = ip0->hop_limit; @@ -2162,62 +2200,64 @@ ip6_rewrite_inline (vlib_main_t * vm, ip0->hop_limit = hop_limit0; - if (PREDICT_FALSE(hop_limit0 <= 0)) - { - /* - * If the hop count drops below 1 when forwarding, generate - * an ICMP response. - */ - error0 = IP6_ERROR_TIME_EXPIRED; - next0 = IP6_REWRITE_NEXT_ICMP_ERROR; - vnet_buffer (p0)->sw_if_index[VLIB_TX] = (u32)~0; - icmp6_error_set_vnet_buffer(p0, ICMP6_time_exceeded, - ICMP6_time_exceeded_ttl_exceeded_in_transit, 0); - } + if (PREDICT_FALSE (hop_limit0 <= 0)) + { + /* + * If the hop count drops below 1 when forwarding, generate + * an ICMP response. + */ + error0 = IP6_ERROR_TIME_EXPIRED; + next0 = IP6_REWRITE_NEXT_ICMP_ERROR; + vnet_buffer (p0)->sw_if_index[VLIB_TX] = (u32) ~ 0; + icmp6_error_set_vnet_buffer (p0, ICMP6_time_exceeded, + ICMP6_time_exceeded_ttl_exceeded_in_transit, + 0); + } + } + else + { + p0->flags &= ~VNET_BUFFER_LOCALLY_ORIGINATED; } - else - { - p0->flags &= ~VNET_BUFFER_LOCALLY_ORIGINATED; - } /* Guess we are only writing on simple Ethernet header. */ vnet_rewrite_one_header (adj0[0], ip0, sizeof (ethernet_header_t)); /* Update packet buffer attributes/set output interface. */ rw_len0 = adj0[0].rewrite_header.data_bytes; - vnet_buffer(p0)->ip.save_rewrite_length = rw_len0; + vnet_buffer (p0)->ip.save_rewrite_length = rw_len0; vlib_increment_combined_counter (&adjacency_counters, - cpu_index, - adj_index0, + cpu_index, adj_index0, /* packet increment */ 0, /* byte increment */ rw_len0); /* Check MTU of outgoing interface. */ - error0 = (vlib_buffer_length_in_chain (vm, p0) > adj0[0].rewrite_header.max_l3_packet_bytes - ? IP6_ERROR_MTU_EXCEEDED - : error0); - - /* Don't adjust the buffer for hop count issue; icmp-error node - * wants to see the IP headerr */ - if (PREDICT_TRUE(error0 == IP6_ERROR_NONE)) - { + error0 = + (vlib_buffer_length_in_chain (vm, p0) > + adj0[0]. + rewrite_header.max_l3_packet_bytes ? IP6_ERROR_MTU_EXCEEDED : + error0); + + /* Don't adjust the buffer for hop count issue; icmp-error node + * wants to see the IP headerr */ + if (PREDICT_TRUE (error0 == IP6_ERROR_NONE)) + { p0->current_data -= rw_len0; p0->current_length += rw_len0; - tx_sw_if_index0 = adj0[0].rewrite_header.sw_if_index; + tx_sw_if_index0 = adj0[0].rewrite_header.sw_if_index; - vnet_buffer (p0)->sw_if_index[VLIB_TX] = tx_sw_if_index0; - next0 = adj0[0].rewrite_header.next_index; + vnet_buffer (p0)->sw_if_index[VLIB_TX] = tx_sw_if_index0; + next0 = adj0[0].rewrite_header.next_index; - vnet_feature_arc_start(lm->output_feature_arc_index, - tx_sw_if_index0, &next0, p0); - } + vnet_feature_arc_start (lm->output_feature_arc_index, + tx_sw_if_index0, &next0, p0); + } if (is_midchain) - { - adj0->sub_type.midchain.fixup_func(vm, adj0, p0); - } + { + adj0->sub_type.midchain.fixup_func (vm, adj0, p0); + } p0->error = error_node->errors[error0]; @@ -2243,8 +2283,7 @@ ip6_rewrite_inline (vlib_main_t * vm, static uword ip6_rewrite (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) + vlib_node_runtime_t * node, vlib_frame_t * frame) { return ip6_rewrite_inline (vm, node, frame, /* midchain */ 0); @@ -2252,38 +2291,40 @@ ip6_rewrite (vlib_main_t * vm, static uword ip6_midchain (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) + vlib_node_runtime_t * node, vlib_frame_t * frame) { return ip6_rewrite_inline (vm, node, frame, /* midchain */ 1); } -VLIB_REGISTER_NODE (ip6_midchain_node) = { +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (ip6_midchain_node) = +{ .function = ip6_midchain, .name = "ip6-midchain", .vector_size = sizeof (u32), - .format_trace = format_ip6_forward_next_trace, - .sibling_of = "ip6-rewrite", -}; + }; +/* *INDENT-ON* */ -VLIB_NODE_FUNCTION_MULTIARCH (ip6_midchain_node, ip6_midchain) +VLIB_NODE_FUNCTION_MULTIARCH (ip6_midchain_node, ip6_midchain); -VLIB_REGISTER_NODE (ip6_rewrite_node) = { +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (ip6_rewrite_node) = +{ .function = ip6_rewrite, .name = "ip6-rewrite", .vector_size = sizeof (u32), - .format_trace = format_ip6_rewrite_trace, - .n_next_nodes = 2, - .next_nodes = { + .next_nodes = + { [IP6_REWRITE_NEXT_DROP] = "error-drop", [IP6_REWRITE_NEXT_ICMP_ERROR] = "ip6-icmp-error", }, }; +/* *INDENT-ON* */ VLIB_NODE_FUNCTION_MULTIARCH (ip6_rewrite_node, ip6_rewrite); @@ -2298,18 +2339,20 @@ _(PROCESSED, "pkts with ip6 hop-by-hop options") \ _(FORMAT, "incorrectly formatted hop-by-hop options") \ _(UNKNOWN_OPTION, "unknown ip6 hop-by-hop options") -typedef enum { +typedef enum +{ #define _(sym,str) IP6_HOP_BY_HOP_ERROR_##sym, foreach_ip6_hop_by_hop_error #undef _ - IP6_HOP_BY_HOP_N_ERROR, + IP6_HOP_BY_HOP_N_ERROR, } ip6_hop_by_hop_error_t; /* * Primary h-b-h handler trace support * We work pretty hard on the problem for obvious reasons */ -typedef struct { +typedef struct +{ u32 next_index; u32 trace_len; u8 option_data[256]; @@ -2317,7 +2360,7 @@ typedef struct { vlib_node_registration_t ip6_hop_by_hop_node; -static char * ip6_hop_by_hop_error_strings[] = { +static char *ip6_hop_by_hop_error_strings[] = { #define _(sym,string) string, foreach_ip6_hop_by_hop_error #undef _ @@ -2328,48 +2371,56 @@ format_ip6_hop_by_hop_trace (u8 * s, va_list * args) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); - ip6_hop_by_hop_trace_t * t = va_arg (*args, ip6_hop_by_hop_trace_t *); + ip6_hop_by_hop_trace_t *t = va_arg (*args, ip6_hop_by_hop_trace_t *); ip6_hop_by_hop_header_t *hbh0; ip6_hop_by_hop_option_t *opt0, *limit0; ip6_hop_by_hop_main_t *hm = &ip6_hop_by_hop_main; u8 type0; - hbh0 = (ip6_hop_by_hop_header_t *)t->option_data; + hbh0 = (ip6_hop_by_hop_header_t *) t->option_data; s = format (s, "IP6_HOP_BY_HOP: next index %d len %d traced %d", - t->next_index, (hbh0->length+1)<<3, t->trace_len); + t->next_index, (hbh0->length + 1) << 3, t->trace_len); - opt0 = (ip6_hop_by_hop_option_t *) (hbh0+1); - limit0 = (ip6_hop_by_hop_option_t *) ((u8 *)hbh0) + t->trace_len; + opt0 = (ip6_hop_by_hop_option_t *) (hbh0 + 1); + limit0 = (ip6_hop_by_hop_option_t *) ((u8 *) hbh0) + t->trace_len; - while (opt0 < limit0) { - type0 = opt0->type; - switch (type0) { - case 0: /* Pad, just stop */ - opt0 = (ip6_hop_by_hop_option_t *) ((u8 *)opt0) + 1; - break; + while (opt0 < limit0) + { + type0 = opt0->type; + switch (type0) + { + case 0: /* Pad, just stop */ + opt0 = (ip6_hop_by_hop_option_t *) ((u8 *) opt0) + 1; + break; - default: - if (hm->trace[type0]) { - s = (*hm->trace[type0])(s, opt0); - } else { - s = format (s, "\n unrecognized option %d length %d", type0, opt0->length); - } - opt0 = (ip6_hop_by_hop_option_t *) (((u8 *)opt0) + opt0->length + sizeof (ip6_hop_by_hop_option_t)); - break; + default: + if (hm->trace[type0]) + { + s = (*hm->trace[type0]) (s, opt0); + } + else + { + s = + format (s, "\n unrecognized option %d length %d", type0, + opt0->length); + } + opt0 = + (ip6_hop_by_hop_option_t *) (((u8 *) opt0) + opt0->length + + sizeof (ip6_hop_by_hop_option_t)); + break; + } } - } return s; } -always_inline u8 ip6_scan_hbh_options ( - vlib_buffer_t * b0, - ip6_header_t *ip0, - ip6_hop_by_hop_header_t *hbh0, - ip6_hop_by_hop_option_t *opt0, - ip6_hop_by_hop_option_t *limit0, - u32 *next0) +always_inline u8 +ip6_scan_hbh_options (vlib_buffer_t * b0, + ip6_header_t * ip0, + ip6_hop_by_hop_header_t * hbh0, + ip6_hop_by_hop_option_t * opt0, + ip6_hop_by_hop_option_t * limit0, u32 * next0) { ip6_hop_by_hop_main_t *hm = &ip6_hop_by_hop_main; u8 type0; @@ -2380,19 +2431,19 @@ always_inline u8 ip6_scan_hbh_options ( type0 = opt0->type; switch (type0) { - case 0: /* Pad1 */ - opt0 = (ip6_hop_by_hop_option_t *) ((u8 *)opt0) + 1; + case 0: /* Pad1 */ + opt0 = (ip6_hop_by_hop_option_t *) ((u8 *) opt0) + 1; continue; - case 1: /* PadN */ + case 1: /* PadN */ break; default: if (hm->options[type0]) { - if ((*hm->options[type0])(b0, ip0, opt0) < 0) - { + if ((*hm->options[type0]) (b0, ip0, opt0) < 0) + { error0 = IP6_HOP_BY_HOP_ERROR_FORMAT; - return(error0); - } + return (error0); + } } else { @@ -2408,29 +2459,34 @@ always_inline u8 ip6_scan_hbh_options ( case HBH_OPTION_TYPE_DISCARD_UNKNOWN_ICMP: error0 = IP6_HOP_BY_HOP_ERROR_UNKNOWN_OPTION; *next0 = IP_LOOKUP_NEXT_ICMP_ERROR; - icmp6_error_set_vnet_buffer(b0, ICMP6_parameter_problem, - ICMP6_parameter_problem_unrecognized_option, (u8 *)opt0 - (u8 *)ip0); + icmp6_error_set_vnet_buffer (b0, ICMP6_parameter_problem, + ICMP6_parameter_problem_unrecognized_option, + (u8 *) opt0 - (u8 *) ip0); break; case HBH_OPTION_TYPE_DISCARD_UNKNOWN_ICMP_NOT_MCAST: error0 = IP6_HOP_BY_HOP_ERROR_UNKNOWN_OPTION; - if (!ip6_address_is_multicast(&ip0->dst_address)) + if (!ip6_address_is_multicast (&ip0->dst_address)) { - *next0 = IP_LOOKUP_NEXT_ICMP_ERROR; - icmp6_error_set_vnet_buffer(b0, ICMP6_parameter_problem, - ICMP6_parameter_problem_unrecognized_option, (u8 *)opt0 - (u8 *)ip0); + *next0 = IP_LOOKUP_NEXT_ICMP_ERROR; + icmp6_error_set_vnet_buffer (b0, + ICMP6_parameter_problem, + ICMP6_parameter_problem_unrecognized_option, + (u8 *) opt0 - (u8 *) ip0); } else { - *next0 = IP_LOOKUP_NEXT_DROP; + *next0 = IP_LOOKUP_NEXT_DROP; } break; } - return(error0); + return (error0); } } - opt0 = (ip6_hop_by_hop_option_t *) (((u8 *)opt0) + opt0->length + sizeof (ip6_hop_by_hop_option_t)); + opt0 = + (ip6_hop_by_hop_option_t *) (((u8 *) opt0) + opt0->length + + sizeof (ip6_hop_by_hop_option_t)); } - return(error0); + return (error0); } /* @@ -2438,245 +2494,288 @@ always_inline u8 ip6_scan_hbh_options ( */ static uword ip6_hop_by_hop (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) + vlib_node_runtime_t * node, vlib_frame_t * frame) { - vlib_node_runtime_t *error_node = vlib_node_get_runtime(vm, ip6_hop_by_hop_node.index); + vlib_node_runtime_t *error_node = + vlib_node_get_runtime (vm, ip6_hop_by_hop_node.index); ip6_hop_by_hop_main_t *hm = &ip6_hop_by_hop_main; u32 n_left_from, *from, *to_next; ip_lookup_next_t next_index; - ip6_main_t * im = &ip6_main; + ip6_main_t *im = &ip6_main; ip_lookup_main_t *lm = &im->lookup_main; from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; next_index = node->cached_next_index; - while (n_left_from > 0) { - u32 n_left_to_next; + while (n_left_from > 0) + { + u32 n_left_to_next; - vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); - while (n_left_from >= 4 && n_left_to_next >= 2) { - u32 bi0, bi1; - vlib_buffer_t * b0, *b1; - u32 next0, next1; - ip6_header_t * ip0, *ip1; - ip6_hop_by_hop_header_t *hbh0, *hbh1; - ip6_hop_by_hop_option_t *opt0, *limit0, *opt1, *limit1; - u8 error0 = 0, error1 = 0; + while (n_left_from >= 4 && n_left_to_next >= 2) + { + u32 bi0, bi1; + vlib_buffer_t *b0, *b1; + u32 next0, next1; + ip6_header_t *ip0, *ip1; + ip6_hop_by_hop_header_t *hbh0, *hbh1; + ip6_hop_by_hop_option_t *opt0, *limit0, *opt1, *limit1; + u8 error0 = 0, error1 = 0; - /* Prefetch next iteration. */ - { - vlib_buffer_t * p2, * p3; + /* Prefetch next iteration. */ + { + vlib_buffer_t *p2, *p3; - p2 = vlib_get_buffer (vm, from[2]); - p3 = vlib_get_buffer (vm, from[3]); + p2 = vlib_get_buffer (vm, from[2]); + p3 = vlib_get_buffer (vm, from[3]); - vlib_prefetch_buffer_header (p2, LOAD); - vlib_prefetch_buffer_header (p3, LOAD); + vlib_prefetch_buffer_header (p2, LOAD); + vlib_prefetch_buffer_header (p3, LOAD); - CLIB_PREFETCH (p2->data, 2*CLIB_CACHE_LINE_BYTES, LOAD); - CLIB_PREFETCH (p3->data, 2*CLIB_CACHE_LINE_BYTES, LOAD); - } + CLIB_PREFETCH (p2->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD); + CLIB_PREFETCH (p3->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD); + } - /* Speculatively enqueue b0, b1 to the current next frame */ - to_next[0] = bi0 = from[0]; - to_next[1] = bi1 = from[1]; - from += 2; - to_next += 2; - n_left_from -= 2; - n_left_to_next -= 2; + /* Speculatively enqueue b0, b1 to the current next frame */ + to_next[0] = bi0 = from[0]; + to_next[1] = bi1 = from[1]; + from += 2; + to_next += 2; + n_left_from -= 2; + n_left_to_next -= 2; - b0 = vlib_get_buffer (vm, bi0); - b1 = vlib_get_buffer (vm, bi1); + b0 = vlib_get_buffer (vm, bi0); + b1 = vlib_get_buffer (vm, bi1); + + /* Default use the next_index from the adjacency. A HBH option rarely redirects to a different node */ + u32 adj_index0 = vnet_buffer (b0)->ip.adj_index[VLIB_TX]; + ip_adjacency_t *adj0 = ip_get_adjacency (lm, adj_index0); + u32 adj_index1 = vnet_buffer (b1)->ip.adj_index[VLIB_TX]; + ip_adjacency_t *adj1 = ip_get_adjacency (lm, adj_index1); + + /* Default use the next_index from the adjacency. A HBH option rarely redirects to a different node */ + next0 = adj0->lookup_next_index; + next1 = adj1->lookup_next_index; + + ip0 = vlib_buffer_get_current (b0); + ip1 = vlib_buffer_get_current (b1); + hbh0 = (ip6_hop_by_hop_header_t *) (ip0 + 1); + hbh1 = (ip6_hop_by_hop_header_t *) (ip1 + 1); + opt0 = (ip6_hop_by_hop_option_t *) (hbh0 + 1); + opt1 = (ip6_hop_by_hop_option_t *) (hbh1 + 1); + limit0 = + (ip6_hop_by_hop_option_t *) ((u8 *) hbh0 + + ((hbh0->length + 1) << 3)); + limit1 = + (ip6_hop_by_hop_option_t *) ((u8 *) hbh1 + + ((hbh1->length + 1) << 3)); - /* Default use the next_index from the adjacency. A HBH option rarely redirects to a different node */ - u32 adj_index0 = vnet_buffer(b0)->ip.adj_index[VLIB_TX]; - ip_adjacency_t *adj0 = ip_get_adjacency(lm, adj_index0); - u32 adj_index1 = vnet_buffer(b1)->ip.adj_index[VLIB_TX]; - ip_adjacency_t *adj1 = ip_get_adjacency(lm, adj_index1); - - /* Default use the next_index from the adjacency. A HBH option rarely redirects to a different node */ - next0 = adj0->lookup_next_index; - next1 = adj1->lookup_next_index; - - ip0 = vlib_buffer_get_current (b0); - ip1 = vlib_buffer_get_current (b1); - hbh0 = (ip6_hop_by_hop_header_t *)(ip0+1); - hbh1 = (ip6_hop_by_hop_header_t *)(ip1+1); - opt0 = (ip6_hop_by_hop_option_t *)(hbh0+1); - opt1 = (ip6_hop_by_hop_option_t *)(hbh1+1); - limit0 = (ip6_hop_by_hop_option_t *)((u8 *)hbh0 + ((hbh0->length + 1) << 3)); - limit1 = (ip6_hop_by_hop_option_t *)((u8 *)hbh1 + ((hbh1->length + 1) << 3)); - - /* - * Basic validity checks - */ - if ((hbh0->length + 1) << 3 > clib_net_to_host_u16(ip0->payload_length)) { - error0 = IP6_HOP_BY_HOP_ERROR_FORMAT; - next0 = IP_LOOKUP_NEXT_DROP; - goto outdual; - } - /* Scan the set of h-b-h options, process ones that we understand */ - error0 = ip6_scan_hbh_options(b0, ip0, hbh0, opt0, limit0, &next0); - - if ((hbh1->length + 1) << 3 > clib_net_to_host_u16(ip1->payload_length)) { - error1 = IP6_HOP_BY_HOP_ERROR_FORMAT; - next1 = IP_LOOKUP_NEXT_DROP; - goto outdual; - } - /* Scan the set of h-b-h options, process ones that we understand */ - error1 = ip6_scan_hbh_options(b1,ip1,hbh1,opt1,limit1, &next1); - - outdual: - /* Has the classifier flagged this buffer for special treatment? */ - if (PREDICT_FALSE((error0 == 0) && (vnet_buffer(b0)->l2_classify.opaque_index & OI_DECAP))) - next0 = hm->next_override; - - /* Has the classifier flagged this buffer for special treatment? */ - if (PREDICT_FALSE((error1 == 0) && (vnet_buffer(b1)->l2_classify.opaque_index & OI_DECAP))) - next1 = hm->next_override; - - if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE))) - { - if (b0->flags & VLIB_BUFFER_IS_TRACED) { - ip6_hop_by_hop_trace_t *t = vlib_add_trace(vm, node, b0, sizeof (*t)); - u32 trace_len = (hbh0->length + 1) << 3; - t->next_index = next0; - /* Capture the h-b-h option verbatim */ - trace_len = trace_len < ARRAY_LEN(t->option_data) ? trace_len : ARRAY_LEN(t->option_data); - t->trace_len = trace_len; - clib_memcpy(t->option_data, hbh0, trace_len); - } - if (b1->flags & VLIB_BUFFER_IS_TRACED) { - ip6_hop_by_hop_trace_t *t = vlib_add_trace(vm, node, b1, sizeof (*t)); - u32 trace_len = (hbh1->length + 1) << 3; - t->next_index = next1; - /* Capture the h-b-h option verbatim */ - trace_len = trace_len < ARRAY_LEN(t->option_data) ? trace_len : ARRAY_LEN(t->option_data); - t->trace_len = trace_len; - clib_memcpy(t->option_data, hbh1, trace_len); - } + /* + * Basic validity checks + */ + if ((hbh0->length + 1) << 3 > + clib_net_to_host_u16 (ip0->payload_length)) + { + error0 = IP6_HOP_BY_HOP_ERROR_FORMAT; + next0 = IP_LOOKUP_NEXT_DROP; + goto outdual; + } + /* Scan the set of h-b-h options, process ones that we understand */ + error0 = ip6_scan_hbh_options (b0, ip0, hbh0, opt0, limit0, &next0); + if ((hbh1->length + 1) << 3 > + clib_net_to_host_u16 (ip1->payload_length)) + { + error1 = IP6_HOP_BY_HOP_ERROR_FORMAT; + next1 = IP_LOOKUP_NEXT_DROP; + goto outdual; + } + /* Scan the set of h-b-h options, process ones that we understand */ + error1 = ip6_scan_hbh_options (b1, ip1, hbh1, opt1, limit1, &next1); + + outdual: + /* Has the classifier flagged this buffer for special treatment? */ + if (PREDICT_FALSE + ((error0 == 0) + && (vnet_buffer (b0)->l2_classify.opaque_index & OI_DECAP))) + next0 = hm->next_override; + + /* Has the classifier flagged this buffer for special treatment? */ + if (PREDICT_FALSE + ((error1 == 0) + && (vnet_buffer (b1)->l2_classify.opaque_index & OI_DECAP))) + next1 = hm->next_override; + + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE))) + { + if (b0->flags & VLIB_BUFFER_IS_TRACED) + { + ip6_hop_by_hop_trace_t *t = + vlib_add_trace (vm, node, b0, sizeof (*t)); + u32 trace_len = (hbh0->length + 1) << 3; + t->next_index = next0; + /* Capture the h-b-h option verbatim */ + trace_len = + trace_len < + ARRAY_LEN (t->option_data) ? trace_len : + ARRAY_LEN (t->option_data); + t->trace_len = trace_len; + clib_memcpy (t->option_data, hbh0, trace_len); + } + if (b1->flags & VLIB_BUFFER_IS_TRACED) + { + ip6_hop_by_hop_trace_t *t = + vlib_add_trace (vm, node, b1, sizeof (*t)); + u32 trace_len = (hbh1->length + 1) << 3; + t->next_index = next1; + /* Capture the h-b-h option verbatim */ + trace_len = + trace_len < + ARRAY_LEN (t->option_data) ? trace_len : + ARRAY_LEN (t->option_data); + t->trace_len = trace_len; + clib_memcpy (t->option_data, hbh1, trace_len); + } + + } + + b0->error = error_node->errors[error0]; + b1->error = error_node->errors[error1]; + + /* verify speculative enqueue, maybe switch current next frame */ + vlib_validate_buffer_enqueue_x2 (vm, node, next_index, to_next, + n_left_to_next, bi0, bi1, next0, + next1); } - b0->error = error_node->errors[error0]; - b1->error = error_node->errors[error1]; + while (n_left_from > 0 && n_left_to_next > 0) + { + u32 bi0; + vlib_buffer_t *b0; + u32 next0; + ip6_header_t *ip0; + ip6_hop_by_hop_header_t *hbh0; + ip6_hop_by_hop_option_t *opt0, *limit0; + u8 error0 = 0; + + /* Speculatively enqueue b0 to the current next frame */ + bi0 = from[0]; + to_next[0] = bi0; + from += 1; + to_next += 1; + n_left_from -= 1; + n_left_to_next -= 1; + + b0 = vlib_get_buffer (vm, bi0); + /* + * Default use the next_index from the adjacency. + * A HBH option rarely redirects to a different node + */ + u32 adj_index0 = vnet_buffer (b0)->ip.adj_index[VLIB_TX]; + ip_adjacency_t *adj0 = ip_get_adjacency (lm, adj_index0); + next0 = adj0->lookup_next_index; - /* verify speculative enqueue, maybe switch current next frame */ - vlib_validate_buffer_enqueue_x2 (vm, node, next_index, to_next, n_left_to_next, bi0, - bi1,next0, next1); - } + ip0 = vlib_buffer_get_current (b0); + hbh0 = (ip6_hop_by_hop_header_t *) (ip0 + 1); + opt0 = (ip6_hop_by_hop_option_t *) (hbh0 + 1); + limit0 = + (ip6_hop_by_hop_option_t *) ((u8 *) hbh0 + + ((hbh0->length + 1) << 3)); - while (n_left_from > 0 && n_left_to_next > 0) { - u32 bi0; - vlib_buffer_t * b0; - u32 next0; - ip6_header_t * ip0; - ip6_hop_by_hop_header_t *hbh0; - ip6_hop_by_hop_option_t *opt0, *limit0; - u8 error0 = 0; - - /* Speculatively enqueue b0 to the current next frame */ - bi0 = from[0]; - to_next[0] = bi0; - from += 1; - to_next += 1; - n_left_from -= 1; - n_left_to_next -= 1; + /* + * Basic validity checks + */ + if ((hbh0->length + 1) << 3 > + clib_net_to_host_u16 (ip0->payload_length)) + { + error0 = IP6_HOP_BY_HOP_ERROR_FORMAT; + next0 = IP_LOOKUP_NEXT_DROP; + goto out0; + } - b0 = vlib_get_buffer (vm, bi0); - /* - * Default use the next_index from the adjacency. - * A HBH option rarely redirects to a different node - */ - u32 adj_index0 = vnet_buffer(b0)->ip.adj_index[VLIB_TX]; - ip_adjacency_t *adj0 = ip_get_adjacency(lm, adj_index0); - next0 = adj0->lookup_next_index; - - ip0 = vlib_buffer_get_current (b0); - hbh0 = (ip6_hop_by_hop_header_t *)(ip0+1); - opt0 = (ip6_hop_by_hop_option_t *)(hbh0+1); - limit0 = (ip6_hop_by_hop_option_t *)((u8 *)hbh0 + ((hbh0->length + 1) << 3)); - - /* - * Basic validity checks - */ - if ((hbh0->length + 1) << 3 > clib_net_to_host_u16(ip0->payload_length)) { - error0 = IP6_HOP_BY_HOP_ERROR_FORMAT; - next0 = IP_LOOKUP_NEXT_DROP; - goto out0; - } - - /* Scan the set of h-b-h options, process ones that we understand */ - error0 = ip6_scan_hbh_options(b0, ip0, hbh0, opt0, limit0, &next0); - - out0: - /* Has the classifier flagged this buffer for special treatment? */ - if (PREDICT_FALSE((error0 == 0) && (vnet_buffer(b0)->l2_classify.opaque_index & OI_DECAP))) - next0 = hm->next_override; - - if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED)) { - ip6_hop_by_hop_trace_t *t = vlib_add_trace(vm, node, b0, sizeof (*t)); - u32 trace_len = (hbh0->length + 1) << 3; - t->next_index = next0; - /* Capture the h-b-h option verbatim */ - trace_len = trace_len < ARRAY_LEN(t->option_data) ? trace_len : ARRAY_LEN(t->option_data); - t->trace_len = trace_len; - clib_memcpy(t->option_data, hbh0, trace_len); - } - - b0->error = error_node->errors[error0]; - - /* verify speculative enqueue, maybe switch current next frame */ - vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, n_left_to_next, bi0, next0); + /* Scan the set of h-b-h options, process ones that we understand */ + error0 = ip6_scan_hbh_options (b0, ip0, hbh0, opt0, limit0, &next0); + + out0: + /* Has the classifier flagged this buffer for special treatment? */ + if (PREDICT_FALSE + ((error0 == 0) + && (vnet_buffer (b0)->l2_classify.opaque_index & OI_DECAP))) + next0 = hm->next_override; + + if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) + { + ip6_hop_by_hop_trace_t *t = + vlib_add_trace (vm, node, b0, sizeof (*t)); + u32 trace_len = (hbh0->length + 1) << 3; + t->next_index = next0; + /* Capture the h-b-h option verbatim */ + trace_len = + trace_len < + ARRAY_LEN (t->option_data) ? trace_len : + ARRAY_LEN (t->option_data); + t->trace_len = trace_len; + clib_memcpy (t->option_data, hbh0, trace_len); + } + + b0->error = error_node->errors[error0]; + + /* verify speculative enqueue, maybe switch current next frame */ + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, + n_left_to_next, bi0, next0); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); } - vlib_put_next_frame (vm, node, next_index, n_left_to_next); - } return frame->n_vectors; } -VLIB_REGISTER_NODE (ip6_hop_by_hop_node) = { +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (ip6_hop_by_hop_node) = +{ .function = ip6_hop_by_hop, .name = "ip6-hop-by-hop", .sibling_of = "ip6-lookup", .vector_size = sizeof (u32), .format_trace = format_ip6_hop_by_hop_trace, .type = VLIB_NODE_TYPE_INTERNAL, - .n_errors = ARRAY_LEN(ip6_hop_by_hop_error_strings), + .n_errors = ARRAY_LEN (ip6_hop_by_hop_error_strings), .error_strings = ip6_hop_by_hop_error_strings, .n_next_nodes = 0, }; +/* *INDENT-ON* */ VLIB_NODE_FUNCTION_MULTIARCH (ip6_hop_by_hop_node, ip6_hop_by_hop); static clib_error_t * ip6_hop_by_hop_init (vlib_main_t * vm) { - ip6_hop_by_hop_main_t * hm = &ip6_hop_by_hop_main; - memset(hm->options, 0, sizeof(hm->options)); - memset(hm->trace, 0, sizeof(hm->trace)); + ip6_hop_by_hop_main_t *hm = &ip6_hop_by_hop_main; + memset (hm->options, 0, sizeof (hm->options)); + memset (hm->trace, 0, sizeof (hm->trace)); hm->next_override = IP6_LOOKUP_NEXT_POP_HOP_BY_HOP; return (0); } VLIB_INIT_FUNCTION (ip6_hop_by_hop_init); -void ip6_hbh_set_next_override (uword next) +void +ip6_hbh_set_next_override (uword next) { - ip6_hop_by_hop_main_t * hm = &ip6_hop_by_hop_main; + ip6_hop_by_hop_main_t *hm = &ip6_hop_by_hop_main; hm->next_override = next; } int ip6_hbh_register_option (u8 option, - int options(vlib_buffer_t *b, ip6_header_t *ip, ip6_hop_by_hop_option_t *opt), - u8 *trace(u8 *s, ip6_hop_by_hop_option_t *opt)) + int options (vlib_buffer_t * b, ip6_header_t * ip, + ip6_hop_by_hop_option_t * opt), + u8 * trace (u8 * s, ip6_hop_by_hop_option_t * opt)) { - ip6_main_t * im = &ip6_main; - ip6_hop_by_hop_main_t * hm = &ip6_hop_by_hop_main; + ip6_main_t *im = &ip6_main; + ip6_hop_by_hop_main_t *hm = &ip6_hop_by_hop_main; ASSERT (option < ARRAY_LEN (hm->options)); @@ -2696,8 +2795,8 @@ ip6_hbh_register_option (u8 option, int ip6_hbh_unregister_option (u8 option) { - ip6_main_t * im = &ip6_main; - ip6_hop_by_hop_main_t * hm = &ip6_hop_by_hop_main; + ip6_main_t *im = &ip6_main; + ip6_hop_by_hop_main_t *hm = &ip6_hop_by_hop_main; ASSERT (option < ARRAY_LEN (hm->options)); @@ -2711,12 +2810,14 @@ ip6_hbh_unregister_option (u8 option) /* Disable global knob if this was the last option configured */ int i; bool found = false; - for (i = 0; i < 256; i++) { - if (hm->options[option]) { - found = true; - break; + for (i = 0; i < 256; i++) + { + if (hm->options[option]) + { + found = true; + break; + } } - } if (!found) im->hbh_enabled = 0; @@ -2729,8 +2830,8 @@ ip6_main_t ip6_main; static clib_error_t * ip6_lookup_init (vlib_main_t * vm) { - ip6_main_t * im = &ip6_main; - clib_error_t * error; + ip6_main_t *im = &ip6_main; + clib_error_t *error; uword i; if ((error = vlib_call_init_function (vm, vnet_feature_init))) @@ -2747,7 +2848,8 @@ ip6_lookup_init (vlib_main_t * vm) im->fib_masks[i].as_u32[j] = ~0; if (i1) - im->fib_masks[i].as_u32[i0] = clib_host_to_net_u32 (pow2_mask (i1) << (32 - i1)); + im->fib_masks[i].as_u32[i0] = + clib_host_to_net_u32 (pow2_mask (i1) << (32 - i1)); } ip_lookup_init (&im->lookup_main, /* is_ip6 */ 1); @@ -2755,25 +2857,23 @@ ip6_lookup_init (vlib_main_t * vm) if (im->lookup_table_nbuckets == 0) im->lookup_table_nbuckets = IP6_FIB_DEFAULT_HASH_NUM_BUCKETS; - im->lookup_table_nbuckets = 1<< max_log2 (im->lookup_table_nbuckets); + im->lookup_table_nbuckets = 1 << max_log2 (im->lookup_table_nbuckets); if (im->lookup_table_size == 0) im->lookup_table_size = IP6_FIB_DEFAULT_HASH_MEMORY_SIZE; - BV(clib_bihash_init) (&(im->ip6_table[IP6_FIB_TABLE_FWDING].ip6_hash), - "ip6 FIB fwding table", - im->lookup_table_nbuckets, - im->lookup_table_size); - BV(clib_bihash_init) (&im->ip6_table[IP6_FIB_TABLE_NON_FWDING].ip6_hash, - "ip6 FIB non-fwding table", - im->lookup_table_nbuckets, - im->lookup_table_size); + BV (clib_bihash_init) (&(im->ip6_table[IP6_FIB_TABLE_FWDING].ip6_hash), + "ip6 FIB fwding table", + im->lookup_table_nbuckets, im->lookup_table_size); + BV (clib_bihash_init) (&im->ip6_table[IP6_FIB_TABLE_NON_FWDING].ip6_hash, + "ip6 FIB non-fwding table", + im->lookup_table_nbuckets, im->lookup_table_size); /* Create FIB with index 0 and table id of 0. */ - fib_table_find_or_create_and_lock(FIB_PROTOCOL_IP6, 0); + fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP6, 0); { - pg_node_t * pn; + pg_node_t *pn; pn = pg_get_node (ip6_lookup_node.index); pn->unformat_edit = unformat_pg_ip6_header; } @@ -2786,17 +2886,22 @@ ip6_lookup_init (vlib_main_t * vm) memset (&p, 0, sizeof (p)); - p.ip.ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 (0x6 << 28); - p.ip.payload_length = clib_host_to_net_u16 (sizeof (p) - - STRUCT_OFFSET_OF (icmp6_neighbor_solicitation_header_t, neighbor)); + p.ip.ip_version_traffic_class_and_flow_label = + clib_host_to_net_u32 (0x6 << 28); + p.ip.payload_length = + clib_host_to_net_u16 (sizeof (p) - + STRUCT_OFFSET_OF + (icmp6_neighbor_solicitation_header_t, neighbor)); p.ip.protocol = IP_PROTOCOL_ICMP6; p.ip.hop_limit = 255; ip6_set_solicited_node_multicast_address (&p.ip.dst_address, 0); p.neighbor.icmp.type = ICMP6_neighbor_solicitation; - p.link_layer_option.header.type = ICMP6_NEIGHBOR_DISCOVERY_OPTION_source_link_layer_address; - p.link_layer_option.header.n_data_u64s = sizeof (p.link_layer_option) / sizeof (u64); + p.link_layer_option.header.type = + ICMP6_NEIGHBOR_DISCOVERY_OPTION_source_link_layer_address; + p.link_layer_option.header.n_data_u64s = + sizeof (p.link_layer_option) / sizeof (u64); vlib_packet_template_init (vm, &im->discover_neighbor_packet_template, @@ -2812,16 +2917,16 @@ VLIB_INIT_FUNCTION (ip6_lookup_init); static clib_error_t * add_del_ip6_interface_table (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, + vlib_cli_command_t * cmd) { - vnet_main_t * vnm = vnet_get_main(); - clib_error_t * error = 0; + vnet_main_t *vnm = vnet_get_main (); + clib_error_t *error = 0; u32 sw_if_index, table_id; sw_if_index = ~0; - if (! unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index)) + if (!unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index)) { error = clib_error_return (0, "unknown interface `%U'", format_unformat_error, input); @@ -2838,15 +2943,15 @@ add_del_ip6_interface_table (vlib_main_t * vm, } { - u32 fib_index = fib_table_find_or_create_and_lock(FIB_PROTOCOL_IP6, - table_id); + u32 fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP6, + table_id); vec_validate (ip6_main.fib_index_by_sw_if_index, sw_if_index); ip6_main.fib_index_by_sw_if_index[sw_if_index] = fib_index; } - done: +done: return error; } @@ -2871,7 +2976,8 @@ add_del_ip6_interface_table (vlib_main_t * vm, * @cliexcmd{set interface ip6 table GigabitEthernet2/0/0 2} ?*/ /* *INDENT-OFF* */ -VLIB_CLI_COMMAND (set_interface_ip6_table_command, static) = { +VLIB_CLI_COMMAND (set_interface_ip6_table_command, static) = +{ .path = "set interface ip6 table", .function = add_del_ip6_interface_table, .short_help = "set interface ip6 table <interface> <table-id>" @@ -2879,38 +2985,37 @@ VLIB_CLI_COMMAND (set_interface_ip6_table_command, static) = { /* *INDENT-ON* */ void -ip6_link_local_address_from_ethernet_mac_address (ip6_address_t *ip, - u8 *mac) +ip6_link_local_address_from_ethernet_mac_address (ip6_address_t * ip, + u8 * mac) { ip->as_u64[0] = clib_host_to_net_u64 (0xFE80000000000000ULL); /* Invert the "u" bit */ - ip->as_u8 [8] = mac[0] ^ (1<<1); - ip->as_u8 [9] = mac[1]; - ip->as_u8 [10] = mac[2]; - ip->as_u8 [11] = 0xFF; - ip->as_u8 [12] = 0xFE; - ip->as_u8 [13] = mac[3]; - ip->as_u8 [14] = mac[4]; - ip->as_u8 [15] = mac[5]; + ip->as_u8[8] = mac[0] ^ (1 << 1); + ip->as_u8[9] = mac[1]; + ip->as_u8[10] = mac[2]; + ip->as_u8[11] = 0xFF; + ip->as_u8[12] = 0xFE; + ip->as_u8[13] = mac[3]; + ip->as_u8[14] = mac[4]; + ip->as_u8[15] = mac[5]; } void -ip6_ethernet_mac_address_from_link_local_address (u8 *mac, - ip6_address_t *ip) +ip6_ethernet_mac_address_from_link_local_address (u8 * mac, + ip6_address_t * ip) { /* Invert the previously inverted "u" bit */ - mac[0] = ip->as_u8 [8] ^ (1<<1); - mac[1] = ip->as_u8 [9]; - mac[2] = ip->as_u8 [10]; - mac[3] = ip->as_u8 [13]; - mac[4] = ip->as_u8 [14]; - mac[5] = ip->as_u8 [15]; + mac[0] = ip->as_u8[8] ^ (1 << 1); + mac[1] = ip->as_u8[9]; + mac[2] = ip->as_u8[10]; + mac[3] = ip->as_u8[13]; + mac[4] = ip->as_u8[14]; + mac[5] = ip->as_u8[15]; } static clib_error_t * test_ip6_link_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, vlib_cli_command_t * cmd) { u8 mac[6]; ip6_address_t _a, *a = &_a; @@ -2918,11 +3023,10 @@ test_ip6_link_command_fn (vlib_main_t * vm, if (unformat (input, "%U", unformat_ethernet_address, mac)) { ip6_link_local_address_from_ethernet_mac_address (a, mac); - vlib_cli_output (vm, "Link local address: %U", - format_ip6_address, a); + vlib_cli_output (vm, "Link local address: %U", format_ip6_address, a); ip6_ethernet_mac_address_from_link_local_address (mac, a); vlib_cli_output (vm, "Original MAC address: %U", - format_ethernet_address, mac); + format_ethernet_address, mac); } return 0; @@ -2940,18 +3044,20 @@ test_ip6_link_command_fn (vlib_main_t * vm, * @cliexend ?*/ /* *INDENT-OFF* */ -VLIB_CLI_COMMAND (test_link_command, static) = { +VLIB_CLI_COMMAND (test_link_command, static) = +{ .path = "test ip6 link", .function = test_ip6_link_command_fn, .short_help = "test ip6 link <mac-address>", }; /* *INDENT-ON* */ -int vnet_set_ip6_flow_hash (u32 table_id, u32 flow_hash_config) +int +vnet_set_ip6_flow_hash (u32 table_id, u32 flow_hash_config) { - ip6_main_t * im6 = &ip6_main; - ip6_fib_t * fib; - uword * p = hash_get (im6->fib_index_by_table_id, table_id); + ip6_main_t *im6 = &ip6_main; + ip6_fib_t *fib; + uword *p = hash_get (im6->fib_index_by_table_id, table_id); if (p == 0) return -1; @@ -2964,27 +3070,29 @@ int vnet_set_ip6_flow_hash (u32 table_id, u32 flow_hash_config) static clib_error_t * set_ip6_flow_hash_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, + vlib_cli_command_t * cmd) { int matched = 0; u32 table_id = 0; u32 flow_hash_config = 0; int rv; - while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { - if (unformat (input, "table %d", &table_id)) - matched = 1; + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "table %d", &table_id)) + matched = 1; #define _(a,v) \ else if (unformat (input, #a)) { flow_hash_config |= v; matched=1;} - foreach_flow_hash_bit + foreach_flow_hash_bit #undef _ - else break; - } + else + break; + } if (matched == 0) return clib_error_return (0, "unknown input `%U'", - format_unformat_error, input); + format_unformat_error, input); rv = vnet_set_ip6_flow_hash (table_id, flow_hash_config); switch (rv) @@ -3079,28 +3187,28 @@ set_ip6_flow_hash_command_fn (vlib_main_t * vm, * @endparblock ?*/ /* *INDENT-OFF* */ -VLIB_CLI_COMMAND (set_ip6_flow_hash_command, static) = { - .path = "set ip6 flow-hash", - .short_help = - "set ip6 flow-hash table <table-id> [src] [dst] [sport] [dport] [proto] [reverse]", - .function = set_ip6_flow_hash_command_fn, +VLIB_CLI_COMMAND (set_ip6_flow_hash_command, static) = +{ + .path = "set ip6 flow-hash", + .short_help = + "set ip6 flow-hash table <table-id> [src] [dst] [sport] [dport] [proto] [reverse]", + .function = set_ip6_flow_hash_command_fn, }; /* *INDENT-ON* */ static clib_error_t * show_ip6_local_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, vlib_cli_command_t * cmd) { - ip6_main_t * im = &ip6_main; - ip_lookup_main_t * lm = &im->lookup_main; + ip6_main_t *im = &ip6_main; + ip_lookup_main_t *lm = &im->lookup_main; int i; vlib_cli_output (vm, "Protocols handled by ip6_local"); - for (i = 0; i < ARRAY_LEN(lm->local_next_by_ip_protocol); i++) + for (i = 0; i < ARRAY_LEN (lm->local_next_by_ip_protocol); i++) { if (lm->local_next_by_ip_protocol[i] != IP_LOCAL_NEXT_PUNT) - vlib_cli_output (vm, "%d", i); + vlib_cli_output (vm, "%d", i); } return 0; } @@ -3121,21 +3229,23 @@ show_ip6_local_command_fn (vlib_main_t * vm, * @cliexend ?*/ /* *INDENT-OFF* */ -VLIB_CLI_COMMAND (show_ip6_local, static) = { +VLIB_CLI_COMMAND (show_ip6_local, static) = +{ .path = "show ip6 local", .function = show_ip6_local_command_fn, .short_help = "show ip6 local", }; /* *INDENT-ON* */ -int vnet_set_ip6_classify_intfc (vlib_main_t * vm, u32 sw_if_index, - u32 table_index) +int +vnet_set_ip6_classify_intfc (vlib_main_t * vm, u32 sw_if_index, + u32 table_index) { - vnet_main_t * vnm = vnet_get_main(); - vnet_interface_main_t * im = &vnm->interface_main; - ip6_main_t * ipm = &ip6_main; - ip_lookup_main_t * lm = &ipm->lookup_main; - vnet_classify_main_t * cm = &vnet_classify_main; + vnet_main_t *vnm = vnet_get_main (); + vnet_interface_main_t *im = &vnm->interface_main; + ip6_main_t *ipm = &ip6_main; + ip_lookup_main_t *lm = &ipm->lookup_main; + vnet_classify_main_t *cm = &vnet_classify_main; ip6_address_t *if_addr; if (pool_is_free_index (im->sw_interfaces, sw_if_index)) @@ -3145,73 +3255,71 @@ int vnet_set_ip6_classify_intfc (vlib_main_t * vm, u32 sw_if_index, return VNET_API_ERROR_NO_SUCH_ENTRY; vec_validate (lm->classify_table_index_by_sw_if_index, sw_if_index); - lm->classify_table_index_by_sw_if_index [sw_if_index] = table_index; + lm->classify_table_index_by_sw_if_index[sw_if_index] = table_index; if_addr = ip6_interface_first_address (ipm, sw_if_index, NULL); if (NULL != if_addr) - { + { fib_prefix_t pfx = { - .fp_len = 128, - .fp_proto = FIB_PROTOCOL_IP6, - .fp_addr.ip6 = *if_addr, + .fp_len = 128, + .fp_proto = FIB_PROTOCOL_IP6, + .fp_addr.ip6 = *if_addr, }; u32 fib_index; - fib_index = fib_table_get_index_for_sw_if_index(FIB_PROTOCOL_IP4, - sw_if_index); - - - if (table_index != (u32) ~0) - { - dpo_id_t dpo = DPO_INVALID; + fib_index = fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4, + sw_if_index); - dpo_set(&dpo, - DPO_CLASSIFY, - DPO_PROTO_IP6, - classify_dpo_create(DPO_PROTO_IP6, - table_index)); - fib_table_entry_special_dpo_add(fib_index, - &pfx, - FIB_SOURCE_CLASSIFY, - FIB_ENTRY_FLAG_NONE, - &dpo); - dpo_reset(&dpo); - } + if (table_index != (u32) ~ 0) + { + dpo_id_t dpo = DPO_INVALID; + + dpo_set (&dpo, + DPO_CLASSIFY, + DPO_PROTO_IP6, + classify_dpo_create (DPO_PROTO_IP6, table_index)); + + fib_table_entry_special_dpo_add (fib_index, + &pfx, + FIB_SOURCE_CLASSIFY, + FIB_ENTRY_FLAG_NONE, &dpo); + dpo_reset (&dpo); + } else - { - fib_table_entry_special_remove(fib_index, - &pfx, - FIB_SOURCE_CLASSIFY); - } - } + { + fib_table_entry_special_remove (fib_index, + &pfx, FIB_SOURCE_CLASSIFY); + } + } return 0; } static clib_error_t * set_ip6_classify_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, + vlib_cli_command_t * cmd) { u32 table_index = ~0; int table_index_set = 0; u32 sw_if_index = ~0; int rv; - while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { - if (unformat (input, "table-index %d", &table_index)) - table_index_set = 1; - else if (unformat (input, "intfc %U", unformat_vnet_sw_interface, - vnet_get_main(), &sw_if_index)) - ; - else - break; - } + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "table-index %d", &table_index)) + table_index_set = 1; + else if (unformat (input, "intfc %U", unformat_vnet_sw_interface, + vnet_get_main (), &sw_if_index)) + ; + else + break; + } if (table_index_set == 0) - return clib_error_return (0, "classify table-index must be specified"); + return clib_error_return (0, "classify table-index must be specified"); if (sw_if_index == ~0) return clib_error_return (0, "interface / subif must be specified"); @@ -3243,37 +3351,39 @@ set_ip6_classify_command_fn (vlib_main_t * vm, * @cliexcmd{set ip6 classify intfc GigabitEthernet2/0/0 table-index 1} ?*/ /* *INDENT-OFF* */ -VLIB_CLI_COMMAND (set_ip6_classify_command, static) = { - .path = "set ip6 classify", - .short_help = - "set ip6 classify intfc <interface> table-index <classify-idx>", - .function = set_ip6_classify_command_fn, +VLIB_CLI_COMMAND (set_ip6_classify_command, static) = +{ + .path = "set ip6 classify", + .short_help = + "set ip6 classify intfc <interface> table-index <classify-idx>", + .function = set_ip6_classify_command_fn, }; /* *INDENT-ON* */ static clib_error_t * ip6_config (vlib_main_t * vm, unformat_input_t * input) { - ip6_main_t * im = &ip6_main; + ip6_main_t *im = &ip6_main; uword heapsize = 0; u32 tmp; u32 nbuckets = 0; - while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { - if (unformat (input, "hash-buckets %d", &tmp)) - nbuckets = tmp; - else if (unformat (input, "heap-size %dm", &tmp)) - heapsize = ((u64)tmp) << 20; - else if (unformat (input, "heap-size %dM", &tmp)) - heapsize = ((u64)tmp) << 20; - else if (unformat (input, "heap-size %dg", &tmp)) - heapsize = ((u64)tmp) << 30; - else if (unformat (input, "heap-size %dG", &tmp)) - heapsize = ((u64)tmp) << 30; - else - return clib_error_return (0, "unknown input '%U'", - format_unformat_error, input); - } + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "hash-buckets %d", &tmp)) + nbuckets = tmp; + else if (unformat (input, "heap-size %dm", &tmp)) + heapsize = ((u64) tmp) << 20; + else if (unformat (input, "heap-size %dM", &tmp)) + heapsize = ((u64) tmp) << 20; + else if (unformat (input, "heap-size %dg", &tmp)) + heapsize = ((u64) tmp) << 30; + else if (unformat (input, "heap-size %dG", &tmp)) + heapsize = ((u64) tmp) << 30; + else + return clib_error_return (0, "unknown input '%U'", + format_unformat_error, input); + } im->lookup_table_nbuckets = nbuckets; im->lookup_table_size = heapsize; @@ -3282,3 +3392,11 @@ ip6_config (vlib_main_t * vm, unformat_input_t * input) } VLIB_EARLY_CONFIG_FUNCTION (ip6_config, "ip6"); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip6_hop_by_hop.c b/vnet/vnet/ip/ip6_hop_by_hop.c index e8bc8906335..3a820b3cefc 100644 --- a/vnet/vnet/ip/ip6_hop_by_hop.c +++ b/vnet/vnet/ip/ip6_hop_by_hop.c @@ -460,6 +460,7 @@ ip6_add_hop_by_hop_node_fn (vlib_main_t * vm, return frame->n_vectors; } +/* *INDENT-OFF* */ VLIB_REGISTER_NODE (ip6_add_hop_by_hop_node) = /* *INDENT-OFF* */ { .function = ip6_add_hop_by_hop_node_fn,.name = @@ -476,19 +477,21 @@ VLIB_REGISTER_NODE (ip6_add_hop_by_hop_node) = /* *INDENT-OFF* */ #undef _ } ,}; +/* *INDENT-ON* */ /* *INDENT-ON* */ VLIB_NODE_FUNCTION_MULTIARCH (ip6_add_hop_by_hop_node, - ip6_add_hop_by_hop_node_fn) + ip6_add_hop_by_hop_node_fn); /* The main h-b-h tracer was already invoked, no need to do much here */ - typedef struct - { - u32 next_index; - } ip6_pop_hop_by_hop_trace_t; +typedef struct +{ + u32 next_index; +} ip6_pop_hop_by_hop_trace_t; /* packet trace format function */ - static u8 *format_ip6_pop_hop_by_hop_trace (u8 * s, va_list * args) +static u8 * +format_ip6_pop_hop_by_hop_trace (u8 * s, va_list * args) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); @@ -816,8 +819,9 @@ VLIB_REGISTER_NODE (ip6_pop_hop_by_hop_node) = /* *INDENT-ON* */ VLIB_NODE_FUNCTION_MULTIARCH (ip6_pop_hop_by_hop_node, - ip6_pop_hop_by_hop_node_fn) - static clib_error_t *ip6_hop_by_hop_ioam_init (vlib_main_t * vm) + ip6_pop_hop_by_hop_node_fn); +static clib_error_t * +ip6_hop_by_hop_ioam_init (vlib_main_t * vm) { clib_error_t *error; ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main; diff --git a/vnet/vnet/ip/ip6_hop_by_hop.h b/vnet/vnet/ip/ip6_hop_by_hop.h index e86a6d05f82..acfaa37ed2f 100644 --- a/vnet/vnet/ip/ip6_hop_by_hop.h +++ b/vnet/vnet/ip/ip6_hop_by_hop.h @@ -34,14 +34,16 @@ /* * Stores the run time flow data of hbh options */ -typedef struct { +typedef struct +{ u32 ctx[MAX_IP6_HBH_OPTION]; u8 flow_name[64]; } flow_data_t; -typedef struct { +typedef struct +{ /* The current rewrite we're using */ - u8 * rewrite; + u8 *rewrite; /* Trace data processing callback */ void *ioam_end_of_path_cb; @@ -71,94 +73,111 @@ typedef struct { /* Array of function pointers to ADD and POP HBH option handling routines */ u8 options_size[MAX_IP6_HBH_OPTION]; - int (*add_options[MAX_IP6_HBH_OPTION])(u8 *rewrite_string, u8 *rewrite_size); - int (*pop_options[MAX_IP6_HBH_OPTION])(vlib_buffer_t *b, ip6_header_t *ip, ip6_hop_by_hop_option_t *opt); - int (*get_sizeof_options[MAX_IP6_HBH_OPTION])(u32 *rewrite_size); + int (*add_options[MAX_IP6_HBH_OPTION]) (u8 * rewrite_string, + u8 * rewrite_size); + int (*pop_options[MAX_IP6_HBH_OPTION]) (vlib_buffer_t * b, + ip6_header_t * ip, + ip6_hop_by_hop_option_t * opt); + int (*get_sizeof_options[MAX_IP6_HBH_OPTION]) (u32 * rewrite_size); int (*config_handler[MAX_IP6_HBH_OPTION]) (void *data, u8 disable); /* Array of function pointers to handle hbh options being used with classifier */ - u32 (*flow_handler[MAX_IP6_HBH_OPTION])(u32 flow_ctx, u8 add); + u32 (*flow_handler[MAX_IP6_HBH_OPTION]) (u32 flow_ctx, u8 add); flow_data_t *flows; /* convenience */ - vlib_main_t * vlib_main; - vnet_main_t * vnet_main; + vlib_main_t *vlib_main; + vnet_main_t *vnet_main; } ip6_hop_by_hop_ioam_main_t; extern ip6_hop_by_hop_ioam_main_t ip6_hop_by_hop_ioam_main; -extern u8 * format_path_map(u8 * s, va_list * args); +extern u8 *format_path_map (u8 * s, va_list * args); -extern clib_error_t * -ip6_ioam_enable(int has_trace_option, int has_pot_option, - int has_seqno_option, int has_analyse_option); +extern clib_error_t *ip6_ioam_enable (int has_trace_option, + int has_pot_option, + int has_seqno_option, + int has_analyse_option); -extern int ip6_ioam_set_destination (ip6_address_t *addr, u32 mask_width, - u32 vrf_id, int is_add, int is_pop, int is_none); +extern int ip6_ioam_set_destination (ip6_address_t * addr, u32 mask_width, + u32 vrf_id, int is_add, int is_pop, + int is_none); -extern clib_error_t * clear_ioam_rewrite_fn(void); +extern clib_error_t *clear_ioam_rewrite_fn (void); -static inline u8 is_zero_ip4_address (ip4_address_t *a) +static inline u8 +is_zero_ip4_address (ip4_address_t * a) { return (a->as_u32 == 0); } -static inline void copy_ip6_address (ip6_address_t *dst, ip6_address_t *src) +static inline void +copy_ip6_address (ip6_address_t * dst, ip6_address_t * src) { dst->as_u64[0] = src->as_u64[0]; dst->as_u64[1] = src->as_u64[1]; } -static inline void set_zero_ip6_address (ip6_address_t *a) +static inline void +set_zero_ip6_address (ip6_address_t * a) { a->as_u64[0] = 0; a->as_u64[1] = 0; } -static inline u8 cmp_ip6_address (ip6_address_t *a1, ip6_address_t *a2) +static inline u8 +cmp_ip6_address (ip6_address_t * a1, ip6_address_t * a2) { - return ((a1->as_u64[0] == a2->as_u64[0]) && (a1->as_u64[1] == a2->as_u64[1])); + return ((a1->as_u64[0] == a2->as_u64[0]) + && (a1->as_u64[1] == a2->as_u64[1])); } -static inline u8 is_zero_ip6_address (ip6_address_t *a) + +static inline u8 +is_zero_ip6_address (ip6_address_t * a) { return ((a->as_u64[0] == 0) && (a->as_u64[1] == 0)); } int ip6_hbh_add_register_option (u8 option, u8 size, - int rewrite_options(u8 *rewrite_string, u8 *size)); + int rewrite_options (u8 * rewrite_string, + u8 * size)); int ip6_hbh_add_unregister_option (u8 option); int ip6_hbh_pop_register_option (u8 option, - int options(vlib_buffer_t *b, - ip6_header_t *ip, ip6_hop_by_hop_option_t *opt)); + int options (vlib_buffer_t * b, + ip6_header_t * ip, + ip6_hop_by_hop_option_t * opt)); int ip6_hbh_pop_unregister_option (u8 option); int ip6_hbh_get_sizeof_register_option (u8 option, - int get_sizeof_hdr_options(u32 *rewrite_size)); + int get_sizeof_hdr_options (u32 * + rewrite_size)); int -ip6_ioam_set_rewrite (u8 **rwp, int has_trace_option, +ip6_ioam_set_rewrite (u8 ** rwp, int has_trace_option, int has_pot_option, int has_seq_no); int ip6_hbh_config_handler_register (u8 option, - int config_handler(void *data, u8 disable)); + int config_handler (void *data, u8 disable)); int ip6_hbh_config_handler_unregister (u8 option); -int ip6_hbh_flow_handler_register(u8 option, - u32 ioam_flow_handler(u32 flow_ctx, u8 add)); +int ip6_hbh_flow_handler_register (u8 option, + u32 ioam_flow_handler (u32 flow_ctx, + u8 add)); -int ip6_hbh_flow_handler_unregister(u8 option); +int ip6_hbh_flow_handler_unregister (u8 option); -u8 * get_flow_name_from_flow_ctx(u32 flow_ctx); +u8 *get_flow_name_from_flow_ctx (u32 flow_ctx); -static inline flow_data_t * get_flow (u32 index) +static inline flow_data_t * +get_flow (u32 index) { flow_data_t *flow = NULL; - ip6_hop_by_hop_ioam_main_t * hm = &ip6_hop_by_hop_ioam_main; + ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main; if (pool_is_free_index (hm->flows, index)) return NULL; @@ -167,23 +186,32 @@ static inline flow_data_t * get_flow (u32 index) return flow; } -static inline u32 get_flow_data_from_flow_ctx (u32 flow_ctx, u8 option) +static inline u32 +get_flow_data_from_flow_ctx (u32 flow_ctx, u8 option) { flow_data_t *flow = NULL; - ip6_hop_by_hop_ioam_main_t * hm = &ip6_hop_by_hop_ioam_main; + ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main; u32 index; - index = IOAM_MASK_DECAP_BIT(flow_ctx); + index = IOAM_MASK_DECAP_BIT (flow_ctx); //flow = pool_elt_at_index (hm->flows, index); flow = &hm->flows[index]; return (flow->ctx[option]); } -static inline u8 is_seqno_enabled (void) +static inline u8 +is_seqno_enabled (void) { return (ip6_hop_by_hop_ioam_main.has_seqno_option); } -int -ip6_trace_profile_setup (); +int ip6_trace_profile_setup (); #endif /* __included_ip6_hop_by_hop_ioam_h__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip6_hop_by_hop_packet.h b/vnet/vnet/ip/ip6_hop_by_hop_packet.h index 8c358334c56..543ba8b0533 100644 --- a/vnet/vnet/ip/ip6_hop_by_hop_packet.h +++ b/vnet/vnet/ip/ip6_hop_by_hop_packet.h @@ -15,17 +15,19 @@ #ifndef __included_ip6_hop_by_hop_packet_h__ #define __included_ip6_hop_by_hop_packet_h__ -typedef struct { +typedef struct +{ /* Protocol for next header */ u8 protocol; /* - * Length of hop_by_hop header in 8 octet units, + * Length of hop_by_hop header in 8 octet units, * not including the first 8 octets */ u8 length; } ip6_hop_by_hop_header_t; -typedef struct { +typedef struct +{ /* Option Type */ #define HBH_OPTION_TYPE_SKIP_UNKNOWN (0x00) #define HBH_OPTION_TYPE_DISCARD_UNKNOWN (0x40) @@ -39,16 +41,26 @@ typedef struct { } ip6_hop_by_hop_option_t; /* $$$$ IANA banana constants */ -#define HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST 59 /* Third highest bit set (change en-route) */ -#define HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT 60 /* Third highest bit set (change en-route) */ +#define HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST 59 /* Third highest bit set (change en-route) */ +#define HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT 60 /* Third highest bit set (change en-route) */ #define HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE 29 +/* *INDENT-OFF* */ typedef CLIB_PACKED(struct { ip6_hop_by_hop_option_t hdr; u8 e2e_type; u8 reserved; u32 e2e_data; }) ioam_e2e_option_t; +/* *INDENT-ON* */ #endif /* __included_ip6_hop_by_hop_packet_h__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip6_input.c b/vnet/vnet/ip/ip6_input.c index f6d56be2829..bbc2cebaa39 100644 --- a/vnet/vnet/ip/ip6_input.c +++ b/vnet/vnet/ip/ip6_input.c @@ -42,24 +42,26 @@ #include <vnet/ppp/ppp.h> #include <vnet/hdlc/hdlc.h> -typedef struct { +typedef struct +{ u8 packet_data[64]; } ip6_input_trace_t; -static u8 * format_ip6_input_trace (u8 * s, va_list * va) +static u8 * +format_ip6_input_trace (u8 * s, va_list * va) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*va, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*va, vlib_node_t *); - ip6_input_trace_t * t = va_arg (*va, ip6_input_trace_t *); + ip6_input_trace_t *t = va_arg (*va, ip6_input_trace_t *); s = format (s, "%U", - format_ip6_header, - t->packet_data, sizeof (t->packet_data)); + format_ip6_header, t->packet_data, sizeof (t->packet_data)); return s; } -typedef enum { +typedef enum +{ IP6_INPUT_NEXT_DROP, IP6_INPUT_NEXT_LOOKUP, IP6_INPUT_NEXT_ICMP_ERROR, @@ -69,18 +71,17 @@ typedef enum { /* Validate IP v6 packets and pass them either to forwarding code or drop exception packets. */ static uword -ip6_input (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) +ip6_input (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { - vnet_main_t * vnm = vnet_get_main(); - ip6_main_t * im = &ip6_main; - ip_lookup_main_t * lm = &im->lookup_main; - u32 n_left_from, * from, * to_next; + vnet_main_t *vnm = vnet_get_main (); + ip6_main_t *im = &ip6_main; + ip_lookup_main_t *lm = &im->lookup_main; + u32 n_left_from, *from, *to_next; ip6_input_next_t next_index; - vlib_node_runtime_t * error_node = vlib_node_get_runtime (vm, ip6_input_node.index); - vlib_simple_counter_main_t * cm; - u32 cpu_index = os_get_cpu_number(); + vlib_node_runtime_t *error_node = + vlib_node_get_runtime (vm, ip6_input_node.index); + vlib_simple_counter_main_t *cm; + u32 cpu_index = os_get_cpu_number (); from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; @@ -92,26 +93,25 @@ ip6_input (vlib_main_t * vm, sizeof (ip6_input_trace_t)); cm = vec_elt_at_index (vnm->interface_main.sw_if_counters, - VNET_INTERFACE_COUNTER_IP6); + VNET_INTERFACE_COUNTER_IP6); while (n_left_from > 0) { u32 n_left_to_next; - vlib_get_next_frame (vm, node, next_index, - to_next, n_left_to_next); + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); while (n_left_from >= 4 && n_left_to_next >= 2) { - vlib_buffer_t * p0, * p1; - ip6_header_t * ip0, * ip1; + vlib_buffer_t *p0, *p1; + ip6_header_t *ip0, *ip1; u32 pi0, sw_if_index0, next0 = 0; u32 pi1, sw_if_index1, next1 = 0; u8 error0, error1, arc0, arc1; /* Prefetch next iteration. */ { - vlib_buffer_t * p2, * p3; + vlib_buffer_t *p2, *p3; p2 = vlib_get_buffer (vm, from[2]); p3 = vlib_get_buffer (vm, from[3]); @@ -142,8 +142,12 @@ ip6_input (vlib_main_t * vm, sw_if_index0 = vnet_buffer (p0)->sw_if_index[VLIB_RX]; sw_if_index1 = vnet_buffer (p1)->sw_if_index[VLIB_RX]; - arc0 = ip6_address_is_multicast (&ip0->dst_address) ? lm->mcast_feature_arc_index : lm->ucast_feature_arc_index; - arc1 = ip6_address_is_multicast (&ip1->dst_address) ? lm->mcast_feature_arc_index : lm->ucast_feature_arc_index; + arc0 = + ip6_address_is_multicast (&ip0->dst_address) ? + lm->mcast_feature_arc_index : lm->ucast_feature_arc_index; + arc1 = + ip6_address_is_multicast (&ip1->dst_address) ? + lm->mcast_feature_arc_index : lm->ucast_feature_arc_index; vnet_buffer (p0)->ip.adj_index[VLIB_RX] = ~0; vnet_buffer (p1)->ip.adj_index[VLIB_RX] = ~0; @@ -157,40 +161,58 @@ ip6_input (vlib_main_t * vm, error0 = error1 = IP6_ERROR_NONE; /* Version != 6? Drop it. */ - error0 = (clib_net_to_host_u32 (ip0->ip_version_traffic_class_and_flow_label) >> 28) != 6 ? IP6_ERROR_VERSION : error0; - error1 = (clib_net_to_host_u32 (ip1->ip_version_traffic_class_and_flow_label) >> 28) != 6 ? IP6_ERROR_VERSION : error1; + error0 = + (clib_net_to_host_u32 + (ip0->ip_version_traffic_class_and_flow_label) >> 28) != + 6 ? IP6_ERROR_VERSION : error0; + error1 = + (clib_net_to_host_u32 + (ip1->ip_version_traffic_class_and_flow_label) >> 28) != + 6 ? IP6_ERROR_VERSION : error1; /* hop limit < 1? Drop it. for link-local broadcast packets, - * like dhcpv6 packets from client has hop-limit 1, which should not - * be dropped. - */ + * like dhcpv6 packets from client has hop-limit 1, which should not + * be dropped. + */ error0 = ip0->hop_limit < 1 ? IP6_ERROR_TIME_EXPIRED : error0; error1 = ip1->hop_limit < 1 ? IP6_ERROR_TIME_EXPIRED : error1; /* L2 length must be at least minimal IP header. */ - error0 = p0->current_length < sizeof (ip0[0]) ? IP6_ERROR_TOO_SHORT : error0; - error1 = p1->current_length < sizeof (ip1[0]) ? IP6_ERROR_TOO_SHORT : error1; - - if (PREDICT_FALSE(error0 != IP6_ERROR_NONE)) - { - if (error0 == IP6_ERROR_TIME_EXPIRED) { - icmp6_error_set_vnet_buffer(p0, ICMP6_time_exceeded, - ICMP6_time_exceeded_ttl_exceeded_in_transit, 0); - next0 = IP6_INPUT_NEXT_ICMP_ERROR; - } else { - next0 = IP6_INPUT_NEXT_DROP; - } - } - if (PREDICT_FALSE(error1 != IP6_ERROR_NONE)) - { - if (error1 == IP6_ERROR_TIME_EXPIRED) { - icmp6_error_set_vnet_buffer(p1, ICMP6_time_exceeded, - ICMP6_time_exceeded_ttl_exceeded_in_transit, 0); - next1 = IP6_INPUT_NEXT_ICMP_ERROR; - } else { - next1 = IP6_INPUT_NEXT_DROP; - } - } + error0 = + p0->current_length < + sizeof (ip0[0]) ? IP6_ERROR_TOO_SHORT : error0; + error1 = + p1->current_length < + sizeof (ip1[0]) ? IP6_ERROR_TOO_SHORT : error1; + + if (PREDICT_FALSE (error0 != IP6_ERROR_NONE)) + { + if (error0 == IP6_ERROR_TIME_EXPIRED) + { + icmp6_error_set_vnet_buffer (p0, ICMP6_time_exceeded, + ICMP6_time_exceeded_ttl_exceeded_in_transit, + 0); + next0 = IP6_INPUT_NEXT_ICMP_ERROR; + } + else + { + next0 = IP6_INPUT_NEXT_DROP; + } + } + if (PREDICT_FALSE (error1 != IP6_ERROR_NONE)) + { + if (error1 == IP6_ERROR_TIME_EXPIRED) + { + icmp6_error_set_vnet_buffer (p1, ICMP6_time_exceeded, + ICMP6_time_exceeded_ttl_exceeded_in_transit, + 0); + next1 = IP6_INPUT_NEXT_ICMP_ERROR; + } + else + { + next1 = IP6_INPUT_NEXT_DROP; + } + } p0->error = error_node->errors[error0]; p1->error = error_node->errors[error1]; @@ -199,11 +221,11 @@ ip6_input (vlib_main_t * vm, to_next, n_left_to_next, pi0, pi1, next0, next1); } - + while (n_left_from > 0 && n_left_to_next > 0) { - vlib_buffer_t * p0; - ip6_header_t * ip0; + vlib_buffer_t *p0; + ip6_header_t *ip0; u32 pi0, sw_if_index0, next0 = 0; u8 error0, arc0; @@ -218,7 +240,9 @@ ip6_input (vlib_main_t * vm, ip0 = vlib_buffer_get_current (p0); sw_if_index0 = vnet_buffer (p0)->sw_if_index[VLIB_RX]; - arc0 = ip6_address_is_multicast (&ip0->dst_address) ? lm->mcast_feature_arc_index : lm->ucast_feature_arc_index; + arc0 = + ip6_address_is_multicast (&ip0->dst_address) ? + lm->mcast_feature_arc_index : lm->ucast_feature_arc_index; vnet_buffer (p0)->ip.adj_index[VLIB_RX] = ~0; vnet_feature_arc_start (arc0, sw_if_index0, &next0, p0); @@ -226,27 +250,36 @@ ip6_input (vlib_main_t * vm, error0 = IP6_ERROR_NONE; /* Version != 6? Drop it. */ - error0 = (clib_net_to_host_u32 (ip0->ip_version_traffic_class_and_flow_label) >> 28) != 6 ? IP6_ERROR_VERSION : error0; + error0 = + (clib_net_to_host_u32 + (ip0->ip_version_traffic_class_and_flow_label) >> 28) != + 6 ? IP6_ERROR_VERSION : error0; /* hop limit < 1? Drop it. for link-local broadcast packets, - * like dhcpv6 packets from client has hop-limit 1, which should not - * be dropped. - */ + * like dhcpv6 packets from client has hop-limit 1, which should not + * be dropped. + */ error0 = ip0->hop_limit < 1 ? IP6_ERROR_TIME_EXPIRED : error0; /* L2 length must be at least minimal IP header. */ - error0 = p0->current_length < sizeof (ip0[0]) ? IP6_ERROR_TOO_SHORT : error0; - - if (PREDICT_FALSE(error0 != IP6_ERROR_NONE)) - { - if (error0 == IP6_ERROR_TIME_EXPIRED) { - icmp6_error_set_vnet_buffer(p0, ICMP6_time_exceeded, - ICMP6_time_exceeded_ttl_exceeded_in_transit, 0); - next0 = IP6_INPUT_NEXT_ICMP_ERROR; - } else { - next0 = IP6_INPUT_NEXT_DROP; - } - } + error0 = + p0->current_length < + sizeof (ip0[0]) ? IP6_ERROR_TOO_SHORT : error0; + + if (PREDICT_FALSE (error0 != IP6_ERROR_NONE)) + { + if (error0 == IP6_ERROR_TIME_EXPIRED) + { + icmp6_error_set_vnet_buffer (p0, ICMP6_time_exceeded, + ICMP6_time_exceeded_ttl_exceeded_in_transit, + 0); + next0 = IP6_INPUT_NEXT_ICMP_ERROR; + } + else + { + next0 = IP6_INPUT_NEXT_DROP; + } + } p0->error = error_node->errors[error0]; vlib_validate_buffer_enqueue_x1 (vm, node, next_index, @@ -260,12 +293,13 @@ ip6_input (vlib_main_t * vm, return frame->n_vectors; } -static char * ip6_error_strings[] = { +static char *ip6_error_strings[] = { #define _(sym,string) string, foreach_ip6_error #undef _ }; +/* *INDENT-OFF* */ VLIB_REGISTER_NODE (ip6_input_node) = { .function = ip6_input, .name = "ip6-input", @@ -284,20 +318,17 @@ VLIB_REGISTER_NODE (ip6_input_node) = { .format_buffer = format_ip6_header, .format_trace = format_ip6_input_trace, }; +/* *INDENT-ON* */ VLIB_NODE_FUNCTION_MULTIARCH (ip6_input_node, ip6_input) - -static clib_error_t * ip6_init (vlib_main_t * vm) + static clib_error_t *ip6_init (vlib_main_t * vm) { - ethernet_register_input_type (vm, ETHERNET_TYPE_IP6, - ip6_input_node.index); - ppp_register_input_protocol (vm, PPP_PROTOCOL_ip6, - ip6_input_node.index); - hdlc_register_input_protocol (vm, HDLC_PROTOCOL_ip6, - ip6_input_node.index); + ethernet_register_input_type (vm, ETHERNET_TYPE_IP6, ip6_input_node.index); + ppp_register_input_protocol (vm, PPP_PROTOCOL_ip6, ip6_input_node.index); + hdlc_register_input_protocol (vm, HDLC_PROTOCOL_ip6, ip6_input_node.index); { - pg_node_t * pn; + pg_node_t *pn; pn = pg_get_node (ip6_input_node.index); pn->unformat_edit = unformat_pg_ip6_header; } @@ -312,3 +343,11 @@ static clib_error_t * ip6_init (vlib_main_t * vm) } VLIB_INIT_FUNCTION (ip6_init); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip6_neighbor.c b/vnet/vnet/ip/ip6_neighbor.c index 15b3f764622..432e09bb2e1 100644 --- a/vnet/vnet/ip/ip6_neighbor.c +++ b/vnet/vnet/ip/ip6_neighbor.c @@ -36,7 +36,8 @@ #define ETHER_MAC_ADDR_LEN 6 /* advertised prefix option */ -typedef struct { +typedef struct +{ /* basic advertised information */ ip6_address_t prefix; u8 prefix_len; @@ -47,12 +48,12 @@ typedef struct { /* advertised values are computed from these times if decrementing */ f64 valid_lifetime_expires; - f64 pref_lifetime_expires; - + f64 pref_lifetime_expires; + /* local information */ int enabled; int deprecated_prefix_flag; - int decrement_lifetime_flag; + int decrement_lifetime_flag; #define MIN_ADV_VALID_LIFETIME 7203 /* seconds */ #define DEF_ADV_VALID_LIFETIME 2592000 @@ -62,7 +63,8 @@ typedef struct { } ip6_radv_prefix_t; -typedef struct { +typedef struct +{ /* group information */ u8 type; ip6_address_t mcast_address; @@ -71,31 +73,32 @@ typedef struct { } ip6_mldp_group_t; /* configured router advertisement information per ipv6 interface */ -typedef struct { +typedef struct +{ /* advertised config information, zero means unspecified */ - u8 curr_hop_limit; + u8 curr_hop_limit; int adv_managed_flag; int adv_other_flag; - u16 adv_router_lifetime_in_sec; + u16 adv_router_lifetime_in_sec; u32 adv_neighbor_reachable_time_in_msec; u32 adv_time_in_msec_between_retransmitted_neighbor_solicitations; /* mtu option */ u32 adv_link_mtu; - + /* source link layer option */ - u8 link_layer_address[8]; - u8 link_layer_addr_len; + u8 link_layer_address[8]; + u8 link_layer_addr_len; /* prefix option */ - ip6_radv_prefix_t * adv_prefixes_pool; + ip6_radv_prefix_t *adv_prefixes_pool; /* Hash table mapping address to index in interface advertised prefix pool. */ mhash_t address_to_prefix_index; /* MLDP group information */ - ip6_mldp_group_t * mldp_group_pool; + ip6_mldp_group_t *mldp_group_pool; /* Hash table mapping address to index in mldp address pool. */ mhash_t address_to_mldp_index; @@ -103,8 +106,8 @@ typedef struct { /* local information */ u32 sw_if_index; u32 fib_index; - int send_radv; /* radv on/off on this interface - set by config */ - int cease_radv; /* we are ceasing to send - set byf config */ + int send_radv; /* radv on/off on this interface - set by config */ + int cease_radv; /* we are ceasing to send - set byf config */ int send_unicast; int adv_link_layer_address; int prefix_option; @@ -116,7 +119,7 @@ typedef struct { adj_index_t all_nodes_adj_index; adj_index_t all_routers_adj_index; adj_index_t all_mldv2_routers_adj_index; - + /* timing information */ #define DEF_MAX_RADV_INTERVAL 200 #define DEF_MIN_RADV_INTERVAL .75 * DEF_MAX_RADV_INTERVAL @@ -124,11 +127,11 @@ typedef struct { #define DEF_DEF_RTR_LIFETIME 3 * DEF_MAX_RADV_INTERVAL #define MAX_DEF_RTR_LIFETIME 9000 -#define MAX_INITIAL_RTR_ADVERT_INTERVAL 16 /* seconds */ -#define MAX_INITIAL_RTR_ADVERTISEMENTS 3 /*transmissions */ -#define MIN_DELAY_BETWEEN_RAS 3 /* seconds */ -#define MAX_DELAY_BETWEEN_RAS 1800 /* seconds */ -#define MAX_RA_DELAY_TIME .5 /* seconds */ +#define MAX_INITIAL_RTR_ADVERT_INTERVAL 16 /* seconds */ +#define MAX_INITIAL_RTR_ADVERTISEMENTS 3 /*transmissions */ +#define MIN_DELAY_BETWEEN_RAS 3 /* seconds */ +#define MAX_DELAY_BETWEEN_RAS 1800 /* seconds */ +#define MAX_RA_DELAY_TIME .5 /* seconds */ f64 max_radv_interval; f64 min_radv_interval; @@ -142,7 +145,7 @@ typedef struct { u32 initial_adverts_count; - f64 initial_adverts_interval; + f64 initial_adverts_interval; u32 initial_adverts_sent; /* stats */ @@ -156,38 +159,40 @@ typedef struct { } ip6_radv_t; -typedef struct { +typedef struct +{ u32 next_index; uword node_index; uword type_opaque; uword data; /* Used for nd event notification only */ - void * data_callback; + void *data_callback; u32 pid; } pending_resolution_t; -typedef struct { +typedef struct +{ /* Hash tables mapping name to opcode. */ - uword * opcode_by_name; + uword *opcode_by_name; /* lite beer "glean" adjacency handling */ mhash_t pending_resolutions_by_address; - pending_resolution_t * pending_resolutions; + pending_resolution_t *pending_resolutions; /* Mac address change notification */ mhash_t mac_changes_by_address; - pending_resolution_t * mac_changes; + pending_resolution_t *mac_changes; - u32 * neighbor_input_next_index_by_hw_if_index; + u32 *neighbor_input_next_index_by_hw_if_index; - ip6_neighbor_t * neighbor_pool; + ip6_neighbor_t *neighbor_pool; mhash_t neighbor_index_by_key; - u32 * if_radv_pool_index_by_sw_if_index; + u32 *if_radv_pool_index_by_sw_if_index; - ip6_radv_t * if_radv_pool; + ip6_radv_t *if_radv_pool; /* Neighbor attack mitigation */ u32 limit_neighbor_cache_size; @@ -196,59 +201,63 @@ typedef struct { } ip6_neighbor_main_t; static ip6_neighbor_main_t ip6_neighbor_main; -static ip6_address_t ip6a_zero; /* ip6 address 0 */ +static ip6_address_t ip6a_zero; /* ip6 address 0 */ -static u8 * format_ip6_neighbor_ip6_entry (u8 * s, va_list * va) +static u8 * +format_ip6_neighbor_ip6_entry (u8 * s, va_list * va) { - vlib_main_t * vm = va_arg (*va, vlib_main_t *); - ip6_neighbor_t * n = va_arg (*va, ip6_neighbor_t *); - vnet_main_t * vnm = vnet_get_main(); - vnet_sw_interface_t * si; - u8 * flags = 0; + vlib_main_t *vm = va_arg (*va, vlib_main_t *); + ip6_neighbor_t *n = va_arg (*va, ip6_neighbor_t *); + vnet_main_t *vnm = vnet_get_main (); + vnet_sw_interface_t *si; + u8 *flags = 0; - if (! n) - return format (s, "%=12s%=20s%=6s%=20s%=40s", "Time", "Address", "Flags", "Link layer", "Interface"); + if (!n) + return format (s, "%=12s%=20s%=6s%=20s%=40s", "Time", "Address", "Flags", + "Link layer", "Interface"); if (n->flags & IP6_NEIGHBOR_FLAG_DYNAMIC) - flags = format(flags, "D"); + flags = format (flags, "D"); if (n->flags & IP6_NEIGHBOR_FLAG_STATIC) - flags = format(flags, "S"); + flags = format (flags, "S"); si = vnet_get_sw_interface (vnm, n->key.sw_if_index); s = format (s, "%=12U%=20U%=6s%=20U%=40U", format_vlib_cpu_time, vm, n->cpu_time_last_updated, format_ip6_address, &n->key.ip6_address, - flags ? (char *)flags : "", + flags ? (char *) flags : "", format_ethernet_address, n->link_layer_address, format_vnet_sw_interface_name, vnm, si); - vec_free(flags); + vec_free (flags); return s; } static clib_error_t * ip6_neighbor_sw_interface_up_down (vnet_main_t * vnm, - u32 sw_if_index, - u32 flags) + u32 sw_if_index, u32 flags) { - ip6_neighbor_main_t * nm = &ip6_neighbor_main; - ip6_neighbor_t * n; - - if (! (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)) + ip6_neighbor_main_t *nm = &ip6_neighbor_main; + ip6_neighbor_t *n; + + if (!(flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)) { - u32 i, * to_delete = 0; + u32 i, *to_delete = 0; - pool_foreach (n, nm->neighbor_pool, ({ + /* *INDENT-OFF* */ + pool_foreach (n, nm->neighbor_pool, + ({ if (n->key.sw_if_index == sw_if_index) vec_add1 (to_delete, n - nm->neighbor_pool); })); + /* *INDENT-ON* */ for (i = 0; i < vec_len (to_delete); i++) { n = pool_elt_at_index (nm->neighbor_pool, to_delete[i]); mhash_unset (&nm->neighbor_index_by_key, &n->key, 0); - fib_table_entry_delete_index (n->fib_entry_index, FIB_SOURCE_ADJ); + fib_table_entry_delete_index (n->fib_entry_index, FIB_SOURCE_ADJ); pool_put (nm->neighbor_pool, n); } @@ -260,12 +269,13 @@ ip6_neighbor_sw_interface_up_down (vnet_main_t * vnm, VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION (ip6_neighbor_sw_interface_up_down); -static void unset_random_neighbor_entry (void) +static void +unset_random_neighbor_entry (void) { - ip6_neighbor_main_t * nm = &ip6_neighbor_main; - vnet_main_t * vnm = vnet_get_main(); - vlib_main_t * vm = vnm->vlib_main; - ip6_neighbor_t * e; + ip6_neighbor_main_t *nm = &ip6_neighbor_main; + vnet_main_t *vnm = vnet_get_main (); + vlib_main_t *vm = vnm->vlib_main; + ip6_neighbor_t *e; u32 index; index = pool_next_index (nm->neighbor_pool, nm->neighbor_delete_rotor); @@ -283,14 +293,15 @@ static void unset_random_neighbor_entry (void) return; e = pool_elt_at_index (nm->neighbor_pool, index); - + vnet_unset_ip6_ethernet_neighbor (vm, e->key.sw_if_index, - &e->key.ip6_address, - e->link_layer_address, - ETHER_MAC_ADDR_LEN); + &e->key.ip6_address, + e->link_layer_address, + ETHER_MAC_ADDR_LEN); } -typedef struct { +typedef struct +{ u8 is_add; u8 is_static; u8 link_layer_address[6]; @@ -298,66 +309,64 @@ typedef struct { ip6_address_t addr; } ip6_neighbor_set_unset_rpc_args_t; -static void ip6_neighbor_set_unset_rpc_callback -( ip6_neighbor_set_unset_rpc_args_t * a); +static void ip6_neighbor_set_unset_rpc_callback + (ip6_neighbor_set_unset_rpc_args_t * a); -static void set_unset_ip6_neighbor_rpc -(vlib_main_t * vm, - u32 sw_if_index, - ip6_address_t * a, - u8 *link_layer_addreess, - int is_add, int is_static) +static void set_unset_ip6_neighbor_rpc + (vlib_main_t * vm, + u32 sw_if_index, + ip6_address_t * a, u8 * link_layer_addreess, int is_add, int is_static) { ip6_neighbor_set_unset_rpc_args_t args; void vl_api_rpc_call_main_thread (void *fp, u8 * data, u32 data_length); - + args.sw_if_index = sw_if_index; args.is_add = is_add; args.is_static = is_static; clib_memcpy (&args.addr, a, sizeof (*a)); clib_memcpy (args.link_layer_address, link_layer_addreess, 6); - + vl_api_rpc_call_main_thread (ip6_neighbor_set_unset_rpc_callback, - (u8 *) &args, sizeof (args)); + (u8 *) & args, sizeof (args)); } static void -ip6_nbr_probe (ip_adjacency_t *adj) -{ - icmp6_neighbor_solicitation_header_t * h; - vnet_main_t * vnm = vnet_get_main(); - ip6_main_t * im = &ip6_main; - ip_interface_address_t * ia; - ip6_address_t * dst, *src; - vnet_hw_interface_t * hi; - vnet_sw_interface_t * si; - vlib_buffer_t * b; +ip6_nbr_probe (ip_adjacency_t * adj) +{ + icmp6_neighbor_solicitation_header_t *h; + vnet_main_t *vnm = vnet_get_main (); + ip6_main_t *im = &ip6_main; + ip_interface_address_t *ia; + ip6_address_t *dst, *src; + vnet_hw_interface_t *hi; + vnet_sw_interface_t *si; + vlib_buffer_t *b; int bogus_length; - vlib_main_t * vm; + vlib_main_t *vm; u32 bi = 0; - vm = vlib_get_main(); + vm = vlib_get_main (); - si = vnet_get_sw_interface(vnm, adj->rewrite_header.sw_if_index); + si = vnet_get_sw_interface (vnm, adj->rewrite_header.sw_if_index); dst = &adj->sub_type.nbr.next_hop.ip6; if (!(si->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)) { return; } - src = ip6_interface_address_matching_destination(im, dst, - adj->rewrite_header.sw_if_index, - &ia); - if (! src) + src = ip6_interface_address_matching_destination (im, dst, + adj->rewrite_header. + sw_if_index, &ia); + if (!src) { return; } - h = vlib_packet_template_get_packet(vm, - &im->discover_neighbor_packet_template, - &bi); + h = vlib_packet_template_get_packet (vm, + &im->discover_neighbor_packet_template, + &bi); - hi = vnet_get_sup_hw_interface(vnm, adj->rewrite_header.sw_if_index); + hi = vnet_get_sup_hw_interface (vnm, adj->rewrite_header.sw_if_index); h->ip.dst_address.as_u8[13] = dst->as_u8[13]; h->ip.dst_address.as_u8[14] = dst->as_u8[14]; @@ -366,28 +375,26 @@ ip6_nbr_probe (ip_adjacency_t *adj) h->neighbor.target_address = dst[0]; clib_memcpy (h->link_layer_option.ethernet_address, - hi->hw_address, - vec_len(hi->hw_address)); + hi->hw_address, vec_len (hi->hw_address)); h->neighbor.icmp.checksum = - ip6_tcp_udp_icmp_compute_checksum(vm, 0, &h->ip, &bogus_length); - ASSERT(bogus_length == 0); + ip6_tcp_udp_icmp_compute_checksum (vm, 0, &h->ip, &bogus_length); + ASSERT (bogus_length == 0); b = vlib_get_buffer (vm, bi); vnet_buffer (b)->sw_if_index[VLIB_RX] = - vnet_buffer (b)->sw_if_index[VLIB_TX] = - adj->rewrite_header.sw_if_index; + vnet_buffer (b)->sw_if_index[VLIB_TX] = adj->rewrite_header.sw_if_index; /* Add encapsulation string for software interface (e.g. ethernet header). */ - vnet_rewrite_one_header(adj[0], h, sizeof (ethernet_header_t)); - vlib_buffer_advance(b, -adj->rewrite_header.data_bytes); + vnet_rewrite_one_header (adj[0], h, sizeof (ethernet_header_t)); + vlib_buffer_advance (b, -adj->rewrite_header.data_bytes); { - vlib_frame_t * f = vlib_get_frame_to_node(vm, hi->output_node_index); - u32 * to_next = vlib_frame_vector_args(f); - to_next[0] = bi; - f->n_vectors = 1; - vlib_put_frame_to_node(vm, hi->output_node_index, f); + vlib_frame_t *f = vlib_get_frame_to_node (vm, hi->output_node_index); + u32 *to_next = vlib_frame_vector_args (f); + to_next[0] = bi; + f->n_vectors = 1; + vlib_put_frame_to_node (vm, hi->output_node_index, f); } } @@ -397,22 +404,22 @@ ip6_nd_mk_complete (adj_index_t ai, ip6_neighbor_t * nbr) adj_nbr_update_rewrite (ai, ADJ_NBR_REWRITE_FLAG_COMPLETE, ethernet_build_rewrite (vnet_get_main (), nbr->key.sw_if_index, - adj_get_link_type(ai), + adj_get_link_type (ai), nbr->link_layer_address)); } static void ip6_nd_mk_incomplete (adj_index_t ai) { - ip_adjacency_t *adj = adj_get(ai); + ip_adjacency_t *adj = adj_get (ai); - adj_nbr_update_rewrite ( - ai, - ADJ_NBR_REWRITE_FLAG_INCOMPLETE, - ethernet_build_rewrite (vnet_get_main (), - adj->rewrite_header.sw_if_index, - adj_get_link_type(ai), - VNET_REWRITE_FOR_SW_INTERFACE_ADDRESS_BROADCAST)); + adj_nbr_update_rewrite (ai, + ADJ_NBR_REWRITE_FLAG_INCOMPLETE, + ethernet_build_rewrite (vnet_get_main (), + adj->rewrite_header. + sw_if_index, + adj_get_link_type (ai), + VNET_REWRITE_FOR_SW_INTERFACE_ADDRESS_BROADCAST)); } #define IP6_NBR_MK_KEY(k, sw_if_index, addr) \ @@ -423,20 +430,20 @@ ip6_nd_mk_incomplete (adj_index_t ai) } static ip6_neighbor_t * -ip6_nd_find (u32 sw_if_index, - const ip6_address_t * addr) +ip6_nd_find (u32 sw_if_index, const ip6_address_t * addr) { - ip6_neighbor_main_t * nm = &ip6_neighbor_main; - ip6_neighbor_t * n = NULL; + ip6_neighbor_main_t *nm = &ip6_neighbor_main; + ip6_neighbor_t *n = NULL; ip6_neighbor_key_t k; uword *p; - IP6_NBR_MK_KEY(k, sw_if_index, addr); + IP6_NBR_MK_KEY (k, sw_if_index, addr); p = mhash_get (&nm->neighbor_index_by_key, &k); - if (p) { - n = pool_elt_at_index (nm->neighbor_pool, p[0]); - } + if (p) + { + n = pool_elt_at_index (nm->neighbor_pool, p[0]); + } return (n); } @@ -460,9 +467,7 @@ ip6_nd_mk_incomplete_walk (adj_index_t ai, void *ctx) } void -ip6_ethernet_update_adjacency (vnet_main_t * vnm, - u32 sw_if_index, - u32 ai) +ip6_ethernet_update_adjacency (vnet_main_t * vnm, u32 sw_if_index, u32 ai) { ip6_neighbor_t *nbr; ip_adjacency_t *adj; @@ -503,24 +508,24 @@ ip6_ethernet_update_adjacency (vnet_main_t * vnm, int vnet_set_ip6_ethernet_neighbor (vlib_main_t * vm, - u32 sw_if_index, - ip6_address_t * a, - u8 * link_layer_address, - uword n_bytes_link_layer_address, - int is_static) + u32 sw_if_index, + ip6_address_t * a, + u8 * link_layer_address, + uword n_bytes_link_layer_address, + int is_static) { - ip6_neighbor_main_t * nm = &ip6_neighbor_main; + ip6_neighbor_main_t *nm = &ip6_neighbor_main; ip6_neighbor_key_t k; - ip6_neighbor_t * n = 0; - int make_new_nd_cache_entry=1; - uword * p; + ip6_neighbor_t *n = 0; + int make_new_nd_cache_entry = 1; + uword *p; u32 next_index; - pending_resolution_t * pr, * mc; + pending_resolution_t *pr, *mc; - if (os_get_cpu_number()) + if (os_get_cpu_number ()) { set_unset_ip6_neighbor_rpc (vm, sw_if_index, a, link_layer_address, - 1 /* set new neighbor */, is_static); + 1 /* set new neighbor */ , is_static); return 0; } @@ -529,66 +534,55 @@ vnet_set_ip6_ethernet_neighbor (vlib_main_t * vm, k.pad = 0; p = mhash_get (&nm->neighbor_index_by_key, &k); - if (p) { - n = pool_elt_at_index (nm->neighbor_pool, p[0]); - /* Refuse to over-write static neighbor entry. */ - if (!is_static && - (n->flags & IP6_NEIGHBOR_FLAG_STATIC)) - return -2; - make_new_nd_cache_entry = 0; - } + if (p) + { + n = pool_elt_at_index (nm->neighbor_pool, p[0]); + /* Refuse to over-write static neighbor entry. */ + if (!is_static && (n->flags & IP6_NEIGHBOR_FLAG_STATIC)) + return -2; + make_new_nd_cache_entry = 0; + } - if (make_new_nd_cache_entry) { + if (make_new_nd_cache_entry) + { fib_prefix_t pfx = { - .fp_len = 128, - .fp_proto = FIB_PROTOCOL_IP6, - .fp_addr = { - .ip6 = k.ip6_address, - }, + .fp_len = 128, + .fp_proto = FIB_PROTOCOL_IP6, + .fp_addr = { + .ip6 = k.ip6_address, + } + , }; u32 fib_index; - pool_get (nm->neighbor_pool, n); - mhash_set (&nm->neighbor_index_by_key, &k, n - nm->neighbor_pool, - /* old value */ 0); - n->key = k; - - clib_memcpy (n->link_layer_address, - link_layer_address, - n_bytes_link_layer_address); - - /* - * create the adj-fib. the entry in the FIB table for and to the peer. - */ - fib_index = ip6_main.fib_index_by_sw_if_index[n->key.sw_if_index]; - n->fib_entry_index = - fib_table_entry_update_one_path(fib_index, - &pfx, - FIB_SOURCE_ADJ, - FIB_ENTRY_FLAG_NONE, - FIB_PROTOCOL_IP6, - &pfx.fp_addr, - n->key.sw_if_index, - ~0, - 1, - NULL, // no label stack - FIB_ROUTE_PATH_FLAG_NONE); - } + pool_get (nm->neighbor_pool, n); + mhash_set (&nm->neighbor_index_by_key, &k, n - nm->neighbor_pool, + /* old value */ 0); + n->key = k; + + clib_memcpy (n->link_layer_address, + link_layer_address, n_bytes_link_layer_address); + + /* + * create the adj-fib. the entry in the FIB table for and to the peer. + */ + fib_index = ip6_main.fib_index_by_sw_if_index[n->key.sw_if_index]; + n->fib_entry_index = fib_table_entry_update_one_path (fib_index, &pfx, FIB_SOURCE_ADJ, FIB_ENTRY_FLAG_NONE, FIB_PROTOCOL_IP6, &pfx.fp_addr, n->key.sw_if_index, ~0, 1, NULL, // no label stack + FIB_ROUTE_PATH_FLAG_NONE); + } else - { - /* - * prevent a DoS attack from the data-plane that - * spams us with no-op updates to the MAC address - */ - if (0 == memcmp(n->link_layer_address, - link_layer_address, - n_bytes_link_layer_address)) - return -1; - - clib_memcpy (n->link_layer_address, - link_layer_address, - n_bytes_link_layer_address); - } + { + /* + * prevent a DoS attack from the data-plane that + * spams us with no-op updates to the MAC address + */ + if (0 == memcmp (n->link_layer_address, + link_layer_address, n_bytes_link_layer_address)) + return -1; + + clib_memcpy (n->link_layer_address, + link_layer_address, n_bytes_link_layer_address); + } /* Update time stamp and flags. */ n->cpu_time_last_updated = clib_cpu_time_now (); @@ -598,24 +592,22 @@ vnet_set_ip6_ethernet_neighbor (vlib_main_t * vm, n->flags |= IP6_NEIGHBOR_FLAG_DYNAMIC; adj_nbr_walk_nh6 (sw_if_index, - &n->key.ip6_address, - ip6_nd_mk_complete_walk, n); + &n->key.ip6_address, ip6_nd_mk_complete_walk, n); /* Customer(s) waiting for this address to be resolved? */ p = mhash_get (&nm->pending_resolutions_by_address, a); if (p) { next_index = p[0]; - - while (next_index != (u32)~0) - { + + while (next_index != (u32) ~ 0) + { pr = pool_elt_at_index (nm->pending_resolutions, next_index); vlib_process_signal_event (vm, pr->node_index, - pr->type_opaque, - pr->data); + pr->type_opaque, pr->data); next_index = pr->next_index; pool_put (nm->pending_resolutions, pr); - } + } mhash_unset (&nm->pending_resolutions_by_address, a, 0); } @@ -626,26 +618,26 @@ vnet_set_ip6_ethernet_neighbor (vlib_main_t * vm, { next_index = p[0]; - while (next_index != (u32)~0) - { - int (*fp)(u32, u8 *, u32, ip6_address_t *); - int rv = 1; - mc = pool_elt_at_index (nm->mac_changes, next_index); - fp = mc->data_callback; - - /* Call the user's data callback, return 1 to suppress dup events */ - if (fp) - rv = (*fp)(mc->data, link_layer_address, sw_if_index, &ip6a_zero); - /* - * Signal the resolver process, as long as the user - * says they want to be notified - */ - if (rv == 0) - vlib_process_signal_event (vm, mc->node_index, - mc->type_opaque, - mc->data); - next_index = mc->next_index; - } + while (next_index != (u32) ~ 0) + { + int (*fp) (u32, u8 *, u32, ip6_address_t *); + int rv = 1; + mc = pool_elt_at_index (nm->mac_changes, next_index); + fp = mc->data_callback; + + /* Call the user's data callback, return 1 to suppress dup events */ + if (fp) + rv = + (*fp) (mc->data, link_layer_address, sw_if_index, &ip6a_zero); + /* + * Signal the resolver process, as long as the user + * says they want to be notified + */ + if (rv == 0) + vlib_process_signal_event (vm, mc->node_index, + mc->type_opaque, mc->data); + next_index = mc->next_index; + } } return 0; @@ -653,71 +645,69 @@ vnet_set_ip6_ethernet_neighbor (vlib_main_t * vm, int vnet_unset_ip6_ethernet_neighbor (vlib_main_t * vm, - u32 sw_if_index, - ip6_address_t * a, - u8 * link_layer_address, - uword n_bytes_link_layer_address) + u32 sw_if_index, + ip6_address_t * a, + u8 * link_layer_address, + uword n_bytes_link_layer_address) { - ip6_neighbor_main_t * nm = &ip6_neighbor_main; + ip6_neighbor_main_t *nm = &ip6_neighbor_main; ip6_neighbor_key_t k; - ip6_neighbor_t * n; - uword * p; + ip6_neighbor_t *n; + uword *p; int rv = 0; - if (os_get_cpu_number()) + if (os_get_cpu_number ()) { set_unset_ip6_neighbor_rpc (vm, sw_if_index, a, link_layer_address, - 0 /* unset */, 0); + 0 /* unset */ , 0); return 0; } k.sw_if_index = sw_if_index; k.ip6_address = a[0]; k.pad = 0; - + p = mhash_get (&nm->neighbor_index_by_key, &k); if (p == 0) { rv = -1; goto out; } - + n = pool_elt_at_index (nm->neighbor_pool, p[0]); mhash_unset (&nm->neighbor_index_by_key, &n->key, 0); adj_nbr_walk_nh6 (sw_if_index, - &n->key.ip6_address, - ip6_nd_mk_incomplete_walk, - NULL); + &n->key.ip6_address, ip6_nd_mk_incomplete_walk, NULL); - fib_table_entry_delete_index (n->fib_entry_index, FIB_SOURCE_ADJ); + fib_table_entry_delete_index (n->fib_entry_index, FIB_SOURCE_ADJ); pool_put (nm->neighbor_pool, n); - - out: + +out: return rv; } -static void ip6_neighbor_set_unset_rpc_callback -( ip6_neighbor_set_unset_rpc_args_t * a) +static void ip6_neighbor_set_unset_rpc_callback + (ip6_neighbor_set_unset_rpc_args_t * a) { - vlib_main_t * vm = vlib_get_main(); - if (a->is_add) - vnet_set_ip6_ethernet_neighbor (vm, a->sw_if_index, &a->addr, - a->link_layer_address, 6, a->is_static); + vlib_main_t *vm = vlib_get_main (); + if (a->is_add) + vnet_set_ip6_ethernet_neighbor (vm, a->sw_if_index, &a->addr, + a->link_layer_address, 6, a->is_static); else - vnet_unset_ip6_ethernet_neighbor (vm, a->sw_if_index, &a->addr, - a->link_layer_address, 6); + vnet_unset_ip6_ethernet_neighbor (vm, a->sw_if_index, &a->addr, + a->link_layer_address, 6); } static int ip6_neighbor_sort (void *a1, void *a2) { - vnet_main_t * vnm = vnet_get_main(); - ip6_neighbor_t * n1 = a1, * n2 = a2; + vnet_main_t *vnm = vnet_get_main (); + ip6_neighbor_t *n1 = a1, *n2 = a2; int cmp; - cmp = vnet_sw_interface_compare (vnm, n1->key.sw_if_index, - n2->key.sw_if_index); - if (! cmp) + cmp = vnet_sw_interface_compare (vnm, n1->key.sw_if_index, + n2->key.sw_if_index); + if (!cmp) cmp = ip6_address_compare (&n1->key.ip6_address, &n2->key.ip6_address); return cmp; } @@ -725,11 +715,12 @@ ip6_neighbor_sort (void *a1, void *a2) ip6_neighbor_t * ip6_neighbors_entries (u32 sw_if_index) { - ip6_neighbor_main_t * nm = &ip6_neighbor_main; + ip6_neighbor_main_t *nm = &ip6_neighbor_main; ip6_neighbor_t *n, *ns = 0; /* *INDENT-OFF* */ - pool_foreach (n, nm->neighbor_pool, ({ + pool_foreach (n, nm->neighbor_pool, + ({ if (sw_if_index != ~0 && n->key.sw_if_index != sw_if_index) continue; vec_add1 (ns, n[0]); @@ -743,12 +734,11 @@ ip6_neighbors_entries (u32 sw_if_index) static clib_error_t * show_ip6_neighbors (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, vlib_cli_command_t * cmd) { - vnet_main_t * vnm = vnet_get_main(); - ip6_neighbor_t * n, * ns; - clib_error_t * error = 0; + vnet_main_t *vnm = vnet_get_main (); + ip6_neighbor_t *n, *ns; + clib_error_t *error = 0; u32 sw_if_index; /* Filter entries by interface if given. */ @@ -759,8 +749,9 @@ show_ip6_neighbors (vlib_main_t * vm, if (ns) { vlib_cli_output (vm, "%U", format_ip6_neighbor_ip6_entry, vm, 0); - vec_foreach (n, ns) { - vlib_cli_output (vm, "%U", format_ip6_neighbor_ip6_entry, vm, n); + vec_foreach (n, ns) + { + vlib_cli_output (vm, "%U", format_ip6_neighbor_ip6_entry, vm, n); } vec_free (ns); } @@ -798,10 +789,9 @@ VLIB_CLI_COMMAND (show_ip6_neighbors_command, static) = { static clib_error_t * set_ip6_neighbor (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, vlib_cli_command_t * cmd) { - vnet_main_t * vnm = vnet_get_main(); + vnet_main_t *vnm = vnet_get_main (); ip6_address_t addr; u8 mac_address[6]; int addr_valid = 0; @@ -809,32 +799,33 @@ set_ip6_neighbor (vlib_main_t * vm, int is_static = 0; u32 sw_if_index; - while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { /* intfc, ip6-address, mac-address */ if (unformat (input, "%U %U %U", - unformat_vnet_sw_interface, vnm, &sw_if_index, - unformat_ip6_address, &addr, - unformat_ethernet_address, mac_address)) - addr_valid = 1; + unformat_vnet_sw_interface, vnm, &sw_if_index, + unformat_ip6_address, &addr, + unformat_ethernet_address, mac_address)) + addr_valid = 1; else if (unformat (input, "delete") || unformat (input, "del")) - is_del = 1; + is_del = 1; else if (unformat (input, "static")) - is_static = 1; + is_static = 1; else - break; + break; } if (!addr_valid) return clib_error_return (0, "Missing interface, ip6 or hw address"); - + if (!is_del) vnet_set_ip6_ethernet_neighbor (vm, sw_if_index, &addr, - mac_address, sizeof(mac_address), is_static); + mac_address, sizeof (mac_address), + is_static); else vnet_unset_ip6_ethernet_neighbor (vm, sw_if_index, &addr, - mac_address, sizeof(mac_address)); + mac_address, sizeof (mac_address)); return 0; } @@ -851,14 +842,16 @@ set_ip6_neighbor (vlib_main_t * vm, * @cliexcmd{set ip6 neighbor del GigabitEthernet2/0/0 ::1:1:c:0:9 02:fe:e4:45:27:5b} ?*/ /* *INDENT-OFF* */ -VLIB_CLI_COMMAND (set_ip6_neighbor_command, static) = { +VLIB_CLI_COMMAND (set_ip6_neighbor_command, static) = +{ .path = "set ip6 neighbor", .function = set_ip6_neighbor, .short_help = "set ip6 neighbor [del] <interface> <ip6-address> <mac-address> [static]", }; /* *INDENT-ON* */ -typedef enum { +typedef enum +{ ICMP6_NEIGHBOR_SOLICITATION_NEXT_DROP, ICMP6_NEIGHBOR_SOLICITATION_NEXT_REPLY, ICMP6_NEIGHBOR_SOLICITATION_N_NEXT, @@ -870,25 +863,26 @@ icmp6_neighbor_solicitation_or_advertisement (vlib_main_t * vm, vlib_frame_t * frame, uword is_solicitation) { - vnet_main_t * vnm = vnet_get_main(); - ip6_main_t * im = &ip6_main; + vnet_main_t *vnm = vnet_get_main (); + ip6_main_t *im = &ip6_main; uword n_packets = frame->n_vectors; - u32 * from, * to_next; + u32 *from, *to_next; u32 n_left_from, n_left_to_next, next_index, n_advertisements_sent; icmp6_neighbor_discovery_option_type_t option_type; - vlib_node_runtime_t * error_node = vlib_node_get_runtime (vm, ip6_icmp_input_node.index); + vlib_node_runtime_t *error_node = + vlib_node_get_runtime (vm, ip6_icmp_input_node.index); int bogus_length; from = vlib_frame_vector_args (frame); n_left_from = n_packets; next_index = node->cached_next_index; - + if (node->flags & VLIB_NODE_FLAG_TRACE) vlib_trace_frame_buffers_only (vm, node, from, frame->n_vectors, /* stride */ 1, sizeof (icmp6_input_trace_t)); - option_type = + option_type = (is_solicitation ? ICMP6_NEIGHBOR_DISCOVERY_OPTION_source_link_layer_address : ICMP6_NEIGHBOR_DISCOVERY_OPTION_target_link_layer_address); @@ -900,139 +894,153 @@ icmp6_neighbor_solicitation_or_advertisement (vlib_main_t * vm, while (n_left_from > 0 && n_left_to_next > 0) { - vlib_buffer_t * p0; - ip6_header_t * ip0; - icmp6_neighbor_solicitation_or_advertisement_header_t * h0; - icmp6_neighbor_discovery_ethernet_link_layer_address_option_t * o0; + vlib_buffer_t *p0; + ip6_header_t *ip0; + icmp6_neighbor_solicitation_or_advertisement_header_t *h0; + icmp6_neighbor_discovery_ethernet_link_layer_address_option_t *o0; u32 bi0, options_len0, sw_if_index0, next0, error0; - u32 ip6_sadd_link_local, ip6_sadd_unspecified; - int is_rewrite0; - u32 ni0; - + u32 ip6_sadd_link_local, ip6_sadd_unspecified; + int is_rewrite0; + u32 ni0; + bi0 = to_next[0] = from[0]; from += 1; to_next += 1; n_left_from -= 1; n_left_to_next -= 1; - + p0 = vlib_get_buffer (vm, bi0); ip0 = vlib_buffer_get_current (p0); h0 = ip6_next_header (ip0); - options_len0 = clib_net_to_host_u16 (ip0->payload_length) - sizeof (h0[0]); + options_len0 = + clib_net_to_host_u16 (ip0->payload_length) - sizeof (h0[0]); error0 = ICMP6_ERROR_NONE; sw_if_index0 = vnet_buffer (p0)->sw_if_index[VLIB_RX]; - ip6_sadd_link_local = ip6_address_is_link_local_unicast(&ip0->src_address); - ip6_sadd_unspecified = ip6_address_is_unspecified (&ip0->src_address); + ip6_sadd_link_local = + ip6_address_is_link_local_unicast (&ip0->src_address); + ip6_sadd_unspecified = + ip6_address_is_unspecified (&ip0->src_address); /* Check that source address is unspecified, link-local or else on-link. */ if (!ip6_sadd_unspecified && !ip6_sadd_link_local) { u32 src_adj_index0 = ip6_src_lookup_for_packet (im, p0, ip0); - if (ADJ_INDEX_INVALID != src_adj_index0) - { - ip_adjacency_t * adj0 = ip_get_adjacency (&im->lookup_main, src_adj_index0); - - /* Allow all realistic-looking rewrite adjacencies to pass */ - ni0 = adj0->lookup_next_index; - is_rewrite0 = (ni0 >= IP_LOOKUP_NEXT_ARP) && - (ni0 < IP6_LOOKUP_N_NEXT); - - error0 = ((adj0->rewrite_header.sw_if_index != sw_if_index0 - || ! is_rewrite0) - ? ICMP6_ERROR_NEIGHBOR_SOLICITATION_SOURCE_NOT_ON_LINK - : error0); - } - else - { - error0 = ICMP6_ERROR_NEIGHBOR_SOLICITATION_SOURCE_NOT_ON_LINK; - } - } - + if (ADJ_INDEX_INVALID != src_adj_index0) + { + ip_adjacency_t *adj0 = + ip_get_adjacency (&im->lookup_main, src_adj_index0); + + /* Allow all realistic-looking rewrite adjacencies to pass */ + ni0 = adj0->lookup_next_index; + is_rewrite0 = (ni0 >= IP_LOOKUP_NEXT_ARP) && + (ni0 < IP6_LOOKUP_N_NEXT); + + error0 = ((adj0->rewrite_header.sw_if_index != sw_if_index0 + || !is_rewrite0) + ? + ICMP6_ERROR_NEIGHBOR_SOLICITATION_SOURCE_NOT_ON_LINK + : error0); + } + else + { + error0 = + ICMP6_ERROR_NEIGHBOR_SOLICITATION_SOURCE_NOT_ON_LINK; + } + } + o0 = (void *) (h0 + 1); o0 = ((options_len0 == 8 && o0->header.type == option_type && o0->header.n_data_u64s == 1) ? o0 : 0); /* If src address unspecified or link local, donot learn neighbor MAC */ - if (PREDICT_TRUE (error0 == ICMP6_ERROR_NONE && o0 != 0 && - !ip6_sadd_unspecified && !ip6_sadd_link_local)) - { - ip6_neighbor_main_t * nm = &ip6_neighbor_main; - if (nm->limit_neighbor_cache_size && - pool_elts (nm->neighbor_pool) >= nm->limit_neighbor_cache_size) - unset_random_neighbor_entry(); - vnet_set_ip6_ethernet_neighbor ( - vm, sw_if_index0, - is_solicitation ? &ip0->src_address : &h0->target_address, - o0->ethernet_address, sizeof (o0->ethernet_address), 0); - } + if (PREDICT_TRUE (error0 == ICMP6_ERROR_NONE && o0 != 0 && + !ip6_sadd_unspecified && !ip6_sadd_link_local)) + { + ip6_neighbor_main_t *nm = &ip6_neighbor_main; + if (nm->limit_neighbor_cache_size && + pool_elts (nm->neighbor_pool) >= + nm->limit_neighbor_cache_size) + unset_random_neighbor_entry (); + vnet_set_ip6_ethernet_neighbor (vm, sw_if_index0, + is_solicitation ? + &ip0->src_address : + &h0->target_address, + o0->ethernet_address, + sizeof (o0->ethernet_address), + 0); + } if (is_solicitation && error0 == ICMP6_ERROR_NONE) { /* Check that target address is local to this router. */ - fib_node_index_t fei; + fib_node_index_t fei; u32 fib_index; - fib_index = ip6_fib_table_get_index_for_sw_if_index(sw_if_index0); + fib_index = + ip6_fib_table_get_index_for_sw_if_index (sw_if_index0); if (~0 == fib_index) - { + { error0 = ICMP6_ERROR_NEIGHBOR_SOLICITATION_SOURCE_UNKNOWN; } else - { - fei = ip6_fib_table_lookup_exact_match(fib_index, - &h0->target_address, - 128); + { + fei = ip6_fib_table_lookup_exact_match (fib_index, + &h0->target_address, + 128); - if (FIB_NODE_INDEX_INVALID == fei || + if (FIB_NODE_INDEX_INVALID == fei || !(FIB_ENTRY_FLAG_LOCAL & - fib_entry_get_flags_for_source(fei, FIB_SOURCE_INTERFACE))) + fib_entry_get_flags_for_source (fei, + FIB_SOURCE_INTERFACE))) { - error0 = ICMP6_ERROR_NEIGHBOR_SOLICITATION_SOURCE_UNKNOWN; + error0 = + ICMP6_ERROR_NEIGHBOR_SOLICITATION_SOURCE_UNKNOWN; } } } if (is_solicitation) - next0 = (error0 != ICMP6_ERROR_NONE - ? ICMP6_NEIGHBOR_SOLICITATION_NEXT_DROP - : ICMP6_NEIGHBOR_SOLICITATION_NEXT_REPLY); + next0 = (error0 != ICMP6_ERROR_NONE + ? ICMP6_NEIGHBOR_SOLICITATION_NEXT_DROP + : ICMP6_NEIGHBOR_SOLICITATION_NEXT_REPLY); else { - next0 = 0; - error0 = error0 == ICMP6_ERROR_NONE ? - ICMP6_ERROR_NEIGHBOR_ADVERTISEMENTS_RX : error0; + next0 = 0; + error0 = error0 == ICMP6_ERROR_NONE ? + ICMP6_ERROR_NEIGHBOR_ADVERTISEMENTS_RX : error0; } if (is_solicitation && error0 == ICMP6_ERROR_NONE) { - vnet_sw_interface_t * sw_if0; - ethernet_interface_t * eth_if0; - ethernet_header_t *eth0; + vnet_sw_interface_t *sw_if0; + ethernet_interface_t *eth_if0; + ethernet_header_t *eth0; - /* dst address is either source address or the all-nodes mcast addr */ - if(!ip6_sadd_unspecified) - ip0->dst_address = ip0->src_address; + /* dst address is either source address or the all-nodes mcast addr */ + if (!ip6_sadd_unspecified) + ip0->dst_address = ip0->src_address; else - ip6_set_reserved_multicast_address(&ip0->dst_address, - IP6_MULTICAST_SCOPE_link_local, - IP6_MULTICAST_GROUP_ID_all_hosts); + ip6_set_reserved_multicast_address (&ip0->dst_address, + IP6_MULTICAST_SCOPE_link_local, + IP6_MULTICAST_GROUP_ID_all_hosts); ip0->src_address = h0->target_address; - ip0->hop_limit = 255; + ip0->hop_limit = 255; h0->icmp.type = ICMP6_neighbor_advertisement; sw_if0 = vnet_get_sup_sw_interface (vnm, sw_if_index0); ASSERT (sw_if0->type == VNET_SW_INTERFACE_TYPE_HARDWARE); - eth_if0 = ethernet_get_interface (ðernet_main, sw_if0->hw_if_index); + eth_if0 = + ethernet_get_interface (ðernet_main, sw_if0->hw_if_index); if (eth_if0 && o0) { - clib_memcpy (o0->ethernet_address, eth_if0->address, 6); - o0->header.type = - ICMP6_NEIGHBOR_DISCOVERY_OPTION_target_link_layer_address; + clib_memcpy (o0->ethernet_address, eth_if0->address, 6); + o0->header.type = + ICMP6_NEIGHBOR_DISCOVERY_OPTION_target_link_layer_address; } h0->advertisement_flags = clib_host_to_net_u32 @@ -1040,27 +1048,27 @@ icmp6_neighbor_solicitation_or_advertisement (vlib_main_t * vm, | ICMP6_NEIGHBOR_ADVERTISEMENT_FLAG_OVERRIDE); h0->icmp.checksum = 0; - h0->icmp.checksum = - ip6_tcp_udp_icmp_compute_checksum (vm, p0, ip0, - &bogus_length); - ASSERT(bogus_length == 0); - - /* Reuse current MAC header, copy SMAC to DMAC and - * interface MAC to SMAC */ - vlib_buffer_advance(p0, - ethernet_buffer_header_size(p0)); - eth0 = vlib_buffer_get_current(p0); - clib_memcpy(eth0->dst_address, eth0->src_address, 6); - if (eth_if0) - clib_memcpy(eth0->src_address, eth_if0->address, 6); - - /* Setup input and output sw_if_index for packet */ - ASSERT(vnet_buffer(p0)->sw_if_index[VLIB_RX] == sw_if_index0); - vnet_buffer(p0)->sw_if_index[VLIB_TX] = sw_if_index0; - vnet_buffer(p0)->sw_if_index[VLIB_RX] = - vnet_main.local_interface_sw_if_index; + h0->icmp.checksum = + ip6_tcp_udp_icmp_compute_checksum (vm, p0, ip0, + &bogus_length); + ASSERT (bogus_length == 0); + + /* Reuse current MAC header, copy SMAC to DMAC and + * interface MAC to SMAC */ + vlib_buffer_advance (p0, -ethernet_buffer_header_size (p0)); + eth0 = vlib_buffer_get_current (p0); + clib_memcpy (eth0->dst_address, eth0->src_address, 6); + if (eth_if0) + clib_memcpy (eth0->src_address, eth_if0->address, 6); + + /* Setup input and output sw_if_index for packet */ + ASSERT (vnet_buffer (p0)->sw_if_index[VLIB_RX] == sw_if_index0); + vnet_buffer (p0)->sw_if_index[VLIB_TX] = sw_if_index0; + vnet_buffer (p0)->sw_if_index[VLIB_RX] = + vnet_main.local_interface_sw_if_index; n_advertisements_sent++; - } + } p0->error = error_node->errors[error0]; @@ -1073,7 +1081,9 @@ icmp6_neighbor_solicitation_or_advertisement (vlib_main_t * vm, } /* Account for advertisements sent. */ - vlib_error_count (vm, error_node->node_index, ICMP6_ERROR_NEIGHBOR_ADVERTISEMENTS_TX, n_advertisements_sent); + vlib_error_count (vm, error_node->node_index, + ICMP6_ERROR_NEIGHBOR_ADVERTISEMENTS_TX, + n_advertisements_sent); return frame->n_vectors; } @@ -1089,51 +1099,54 @@ icmp6_neighbor_solicitation_or_advertisement (vlib_main_t * vm, _ (ALERT, "ALERT") \ _ (EMERG, "EMERGENCY") -typedef enum { +typedef enum +{ #define _(f,s) LOG_##f, foreach_log_level #undef _ } log_level_t; -static char * log_level_strings[] = { +static char *log_level_strings[] = { #define _(f,s) s, foreach_log_level #undef _ }; -static int logmask = 1 << LOG_DEBUG; +static int logmask = 1 << LOG_DEBUG; static void -ip6_neighbor_syslog(vlib_main_t *vm, int priority, char * fmt, ...) +ip6_neighbor_syslog (vlib_main_t * vm, int priority, char *fmt, ...) { /* just use elog for now */ u8 *what; va_list va; - if( (priority > LOG_EMERG) || - !(logmask & (1 << priority))) - return; + if ((priority > LOG_EMERG) || !(logmask & (1 << priority))) + return; va_start (va, fmt); - if(fmt) + if (fmt) { what = va_format (0, fmt, &va); - ELOG_TYPE_DECLARE (e) = { - .format = "ip6 nd: (%s): %s", - .format_args = "T4T4", - }; - struct { u32 s[2]; } * ed; + ELOG_TYPE_DECLARE (e) = + { + .format = "ip6 nd: (%s): %s",.format_args = "T4T4",}; + struct + { + u32 s[2]; + } *ed; ed = ELOG_DATA (&vm->elog_main, e); - ed->s[0] = elog_string(&vm->elog_main, log_level_strings[priority]); - ed->s[1] = elog_string(&vm->elog_main, (char *)what); + ed->s[0] = elog_string (&vm->elog_main, log_level_strings[priority]); + ed->s[1] = elog_string (&vm->elog_main, (char *) what); } va_end (va); return; } /* ipv6 neighbor discovery - router advertisements */ -typedef enum { +typedef enum +{ ICMP6_ROUTER_SOLICITATION_NEXT_DROP, ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_RW, ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_TX, @@ -1141,27 +1154,27 @@ typedef enum { } icmp6_router_solicitation_or_advertisement_next_t; static_always_inline uword -icmp6_router_solicitation(vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) +icmp6_router_solicitation (vlib_main_t * vm, + vlib_node_runtime_t * node, vlib_frame_t * frame) { - vnet_main_t * vnm = vnet_get_main(); - ip6_main_t * im = &ip6_main; - ip6_neighbor_main_t * nm = &ip6_neighbor_main; + vnet_main_t *vnm = vnet_get_main (); + ip6_main_t *im = &ip6_main; + ip6_neighbor_main_t *nm = &ip6_neighbor_main; uword n_packets = frame->n_vectors; - u32 * from, * to_next; + u32 *from, *to_next; u32 n_left_from, n_left_to_next, next_index; - u32 n_advertisements_sent = 0; + u32 n_advertisements_sent = 0; int bogus_length; icmp6_neighbor_discovery_option_type_t option_type; - vlib_node_runtime_t * error_node = vlib_node_get_runtime (vm, ip6_icmp_input_node.index); + vlib_node_runtime_t *error_node = + vlib_node_get_runtime (vm, ip6_icmp_input_node.index); from = vlib_frame_vector_args (frame); n_left_from = n_packets; next_index = node->cached_next_index; - + if (node->flags & VLIB_NODE_FLAG_TRACE) vlib_trace_frame_buffers_only (vm, node, from, frame->n_vectors, /* stride */ 1, @@ -1173,19 +1186,19 @@ icmp6_router_solicitation(vlib_main_t * vm, while (n_left_from > 0) { vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); - + while (n_left_from > 0 && n_left_to_next > 0) { - vlib_buffer_t * p0; - ip6_header_t * ip0; + vlib_buffer_t *p0; + ip6_header_t *ip0; ip6_radv_t *radv_info = 0; - icmp6_neighbor_discovery_header_t * h0; - icmp6_neighbor_discovery_ethernet_link_layer_address_option_t * o0; - + icmp6_neighbor_discovery_header_t *h0; + icmp6_neighbor_discovery_ethernet_link_layer_address_option_t *o0; + u32 bi0, options_len0, sw_if_index0, next0, error0; - u32 is_solicitation = 1, is_dropped = 0; - u32 is_unspecified, is_link_local; + u32 is_solicitation = 1, is_dropped = 0; + u32 is_unspecified, is_link_local; bi0 = to_next[0] = from[0]; @@ -1193,17 +1206,19 @@ icmp6_router_solicitation(vlib_main_t * vm, to_next += 1; n_left_from -= 1; n_left_to_next -= 1; - + p0 = vlib_get_buffer (vm, bi0); ip0 = vlib_buffer_get_current (p0); h0 = ip6_next_header (ip0); - options_len0 = clib_net_to_host_u16 (ip0->payload_length) - sizeof (h0[0]); - is_unspecified = ip6_address_is_unspecified (&ip0->src_address); - is_link_local = ip6_address_is_link_local_unicast (&ip0->src_address); + options_len0 = + clib_net_to_host_u16 (ip0->payload_length) - sizeof (h0[0]); + is_unspecified = ip6_address_is_unspecified (&ip0->src_address); + is_link_local = + ip6_address_is_link_local_unicast (&ip0->src_address); error0 = ICMP6_ERROR_NONE; sw_if_index0 = vnet_buffer (p0)->sw_if_index[VLIB_RX]; - + /* check if solicitation (not from nd_timer node) */ if (ip6_address_is_unspecified (&ip0->dst_address)) is_solicitation = 0; @@ -1213,85 +1228,97 @@ icmp6_router_solicitation(vlib_main_t * vm, { u32 src_adj_index0 = ip6_src_lookup_for_packet (im, p0, ip0); - if (ADJ_INDEX_INVALID != src_adj_index0) - { - ip_adjacency_t * adj0 = ip_get_adjacency (&im->lookup_main, - src_adj_index0); - - error0 = (adj0->rewrite_header.sw_if_index != sw_if_index0 - ? ICMP6_ERROR_ROUTER_SOLICITATION_SOURCE_NOT_ON_LINK - : error0); - } - else - { - error0 = ICMP6_ERROR_ROUTER_SOLICITATION_SOURCE_NOT_ON_LINK; - } - } - + if (ADJ_INDEX_INVALID != src_adj_index0) + { + ip_adjacency_t *adj0 = ip_get_adjacency (&im->lookup_main, + src_adj_index0); + + error0 = (adj0->rewrite_header.sw_if_index != sw_if_index0 + ? + ICMP6_ERROR_ROUTER_SOLICITATION_SOURCE_NOT_ON_LINK + : error0); + } + else + { + error0 = ICMP6_ERROR_ROUTER_SOLICITATION_SOURCE_NOT_ON_LINK; + } + } + /* check for source LL option and process */ o0 = (void *) (h0 + 1); o0 = ((options_len0 == 8 && o0->header.type == option_type - && o0->header.n_data_u64s == 1) - ? o0 - : 0); - + && o0->header.n_data_u64s == 1) ? o0 : 0); + /* if src address unspecified IGNORE any options */ - if (PREDICT_TRUE (error0 == ICMP6_ERROR_NONE && o0 != 0 && - !is_unspecified && !is_link_local)) { - ip6_neighbor_main_t * nm = &ip6_neighbor_main; - if (nm->limit_neighbor_cache_size && - pool_elts (nm->neighbor_pool) >= nm->limit_neighbor_cache_size) - unset_random_neighbor_entry(); - - vnet_set_ip6_ethernet_neighbor (vm, sw_if_index0, - &ip0->src_address, - o0->ethernet_address, - sizeof (o0->ethernet_address), 0); - } - + if (PREDICT_TRUE (error0 == ICMP6_ERROR_NONE && o0 != 0 && + !is_unspecified && !is_link_local)) + { + ip6_neighbor_main_t *nm = &ip6_neighbor_main; + if (nm->limit_neighbor_cache_size && + pool_elts (nm->neighbor_pool) >= + nm->limit_neighbor_cache_size) + unset_random_neighbor_entry (); + + vnet_set_ip6_ethernet_neighbor (vm, sw_if_index0, + &ip0->src_address, + o0->ethernet_address, + sizeof (o0->ethernet_address), + 0); + } + /* default is to drop */ next0 = ICMP6_ROUTER_SOLICITATION_NEXT_DROP; - + if (error0 == ICMP6_ERROR_NONE) { - vnet_sw_interface_t * sw_if0; - ethernet_interface_t * eth_if0; - u32 adj_index0; + vnet_sw_interface_t *sw_if0; + ethernet_interface_t *eth_if0; + u32 adj_index0; sw_if0 = vnet_get_sup_sw_interface (vnm, sw_if_index0); ASSERT (sw_if0->type == VNET_SW_INTERFACE_TYPE_HARDWARE); - eth_if0 = ethernet_get_interface (ðernet_main, sw_if0->hw_if_index); + eth_if0 = + ethernet_get_interface (ðernet_main, sw_if0->hw_if_index); /* only support ethernet interface type for now */ - error0 = (!eth_if0) ? ICMP6_ERROR_ROUTER_SOLICITATION_UNSUPPORTED_INTF : error0; + error0 = + (!eth_if0) ? ICMP6_ERROR_ROUTER_SOLICITATION_UNSUPPORTED_INTF + : error0; if (error0 == ICMP6_ERROR_NONE) { u32 ri; /* adjust the sizeof the buffer to just include the ipv6 header */ - p0->current_length -= (options_len0 + sizeof(icmp6_neighbor_discovery_header_t)); + p0->current_length -= + (options_len0 + + sizeof (icmp6_neighbor_discovery_header_t)); /* look up the radv_t information for this interface */ - vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index0, ~0); + vec_validate_init_empty + (nm->if_radv_pool_index_by_sw_if_index, sw_if_index0, ~0); ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index0]; - if(ri != ~0) - radv_info = pool_elt_at_index (nm->if_radv_pool, ri); - - error0 = ((!radv_info) ? ICMP6_ERROR_ROUTER_SOLICITATION_RADV_NOT_CONFIG : error0); + if (ri != ~0) + radv_info = pool_elt_at_index (nm->if_radv_pool, ri); + + error0 = + ((!radv_info) ? + ICMP6_ERROR_ROUTER_SOLICITATION_RADV_NOT_CONFIG : + error0); if (error0 == ICMP6_ERROR_NONE) { f64 now = vlib_time_now (vm); /* for solicited adverts - need to rate limit */ - if(is_solicitation) + if (is_solicitation) { - if( (now - radv_info->last_radv_time) < MIN_DELAY_BETWEEN_RAS ) - is_dropped = 1; + if ((now - radv_info->last_radv_time) < + MIN_DELAY_BETWEEN_RAS) + is_dropped = 1; else radv_info->last_radv_time = now; } @@ -1302,181 +1329,223 @@ icmp6_router_solicitation(vlib_main_t * vm, rh.icmp.type = ICMP6_router_advertisement; rh.icmp.code = 0; rh.icmp.checksum = 0; - - rh.current_hop_limit = radv_info->curr_hop_limit; - rh.router_lifetime_in_sec = clib_host_to_net_u16(radv_info->adv_router_lifetime_in_sec); - rh.time_in_msec_between_retransmitted_neighbor_solicitations = - clib_host_to_net_u32(radv_info->adv_time_in_msec_between_retransmitted_neighbor_solicitations); - rh.neighbor_reachable_time_in_msec = - clib_host_to_net_u32(radv_info->adv_neighbor_reachable_time_in_msec); - - rh.flags = (radv_info->adv_managed_flag) ? ICMP6_ROUTER_DISCOVERY_FLAG_ADDRESS_CONFIG_VIA_DHCP : 0; - rh.flags |= ( (radv_info->adv_other_flag) ? ICMP6_ROUTER_DISCOVERY_FLAG_OTHER_CONFIG_VIA_DHCP : 0); - - u16 payload_length = sizeof(icmp6_router_advertisement_header_t); + rh.current_hop_limit = radv_info->curr_hop_limit; + rh.router_lifetime_in_sec = + clib_host_to_net_u16 + (radv_info->adv_router_lifetime_in_sec); + rh. + time_in_msec_between_retransmitted_neighbor_solicitations + = + clib_host_to_net_u32 (radv_info-> + adv_time_in_msec_between_retransmitted_neighbor_solicitations); + rh.neighbor_reachable_time_in_msec = + clib_host_to_net_u32 (radv_info-> + adv_neighbor_reachable_time_in_msec); + + rh.flags = + (radv_info->adv_managed_flag) ? + ICMP6_ROUTER_DISCOVERY_FLAG_ADDRESS_CONFIG_VIA_DHCP : + 0; + rh.flags |= + ((radv_info->adv_other_flag) ? + ICMP6_ROUTER_DISCOVERY_FLAG_OTHER_CONFIG_VIA_DHCP : + 0); + + + u16 payload_length = + sizeof (icmp6_router_advertisement_header_t); vlib_buffer_add_data (vm, p0->free_list_index, bi0, - (void *)&rh, sizeof(icmp6_router_advertisement_header_t)); + (void *) &rh, + sizeof + (icmp6_router_advertisement_header_t)); - if(radv_info->adv_link_layer_address) + if (radv_info->adv_link_layer_address) { - icmp6_neighbor_discovery_ethernet_link_layer_address_option_t h; + icmp6_neighbor_discovery_ethernet_link_layer_address_option_t + h; - h.header.type = ICMP6_NEIGHBOR_DISCOVERY_OPTION_source_link_layer_address; + h.header.type = + ICMP6_NEIGHBOR_DISCOVERY_OPTION_source_link_layer_address; h.header.n_data_u64s = 1; /* copy ll address */ - clib_memcpy(&h.ethernet_address[0], eth_if0->address, 6); + clib_memcpy (&h.ethernet_address[0], + eth_if0->address, 6); vlib_buffer_add_data (vm, p0->free_list_index, bi0, - (void *)&h, sizeof(icmp6_neighbor_discovery_ethernet_link_layer_address_option_t)); + (void *) &h, + sizeof + (icmp6_neighbor_discovery_ethernet_link_layer_address_option_t)); - payload_length += sizeof(icmp6_neighbor_discovery_ethernet_link_layer_address_option_t); + payload_length += + sizeof + (icmp6_neighbor_discovery_ethernet_link_layer_address_option_t); } - + /* add MTU option */ - if(radv_info->adv_link_mtu) + if (radv_info->adv_link_mtu) { icmp6_neighbor_discovery_mtu_option_t h; h.unused = 0; - h.mtu = clib_host_to_net_u32(radv_info->adv_link_mtu); + h.mtu = + clib_host_to_net_u32 (radv_info->adv_link_mtu); h.header.type = ICMP6_NEIGHBOR_DISCOVERY_OPTION_mtu; h.header.n_data_u64s = 1; - - payload_length += sizeof( icmp6_neighbor_discovery_mtu_option_t); + + payload_length += + sizeof (icmp6_neighbor_discovery_mtu_option_t); vlib_buffer_add_data (vm, p0->free_list_index, bi0, - (void *)&h, sizeof(icmp6_neighbor_discovery_mtu_option_t)); + (void *) &h, + sizeof + (icmp6_neighbor_discovery_mtu_option_t)); } - - /* add advertised prefix options */ - ip6_radv_prefix_t *pr_info; - - pool_foreach (pr_info, radv_info->adv_prefixes_pool, ({ - if(pr_info->enabled && - (!pr_info->decrement_lifetime_flag || (pr_info->pref_lifetime_expires >0))) - { - /* advertise this prefix */ - icmp6_neighbor_discovery_prefix_information_option_t h; - - h.header.type = ICMP6_NEIGHBOR_DISCOVERY_OPTION_prefix_information; - h.header.n_data_u64s = (sizeof(icmp6_neighbor_discovery_prefix_information_option_t) >> 3); - - h.dst_address_length = pr_info->prefix_len; - - h.flags = (pr_info->adv_on_link_flag) ? ICMP6_NEIGHBOR_DISCOVERY_PREFIX_INFORMATION_FLAG_ON_LINK : 0; - h.flags |= (pr_info->adv_autonomous_flag) ? ICMP6_NEIGHBOR_DISCOVERY_PREFIX_INFORMATION_AUTO : 0; - - if(radv_info->cease_radv && pr_info->deprecated_prefix_flag) - { - h.valid_time = clib_host_to_net_u32(MIN_ADV_VALID_LIFETIME); - h.preferred_time = 0; - } - else - { - if(pr_info->decrement_lifetime_flag) - { - pr_info->adv_valid_lifetime_in_secs = ((pr_info->valid_lifetime_expires > now)) ? - (pr_info->valid_lifetime_expires - now) : 0; - - pr_info->adv_pref_lifetime_in_secs = ((pr_info->pref_lifetime_expires > now)) ? - (pr_info->pref_lifetime_expires - now) : 0; - } - - h.valid_time = clib_host_to_net_u32(pr_info->adv_valid_lifetime_in_secs); - h.preferred_time = clib_host_to_net_u32(pr_info->adv_pref_lifetime_in_secs) ; - } - h.unused = 0; - - clib_memcpy(&h.dst_address, &pr_info->prefix, sizeof(ip6_address_t)); - - payload_length += sizeof( icmp6_neighbor_discovery_prefix_information_option_t); - - vlib_buffer_add_data (vm, - p0->free_list_index, - bi0, - (void *)&h, sizeof(icmp6_neighbor_discovery_prefix_information_option_t)); - - } - })); + /* add advertised prefix options */ + ip6_radv_prefix_t *pr_info; + + /* *INDENT-OFF* */ + pool_foreach (pr_info, radv_info->adv_prefixes_pool, + ({ + if(pr_info->enabled && + (!pr_info->decrement_lifetime_flag + || (pr_info->pref_lifetime_expires >0))) + { + /* advertise this prefix */ + icmp6_neighbor_discovery_prefix_information_option_t h; + + h.header.type = ICMP6_NEIGHBOR_DISCOVERY_OPTION_prefix_information; + h.header.n_data_u64s = (sizeof(icmp6_neighbor_discovery_prefix_information_option_t) >> 3); + + h.dst_address_length = pr_info->prefix_len; + + h.flags = (pr_info->adv_on_link_flag) ? ICMP6_NEIGHBOR_DISCOVERY_PREFIX_INFORMATION_FLAG_ON_LINK : 0; + h.flags |= (pr_info->adv_autonomous_flag) ? ICMP6_NEIGHBOR_DISCOVERY_PREFIX_INFORMATION_AUTO : 0; + + if(radv_info->cease_radv && pr_info->deprecated_prefix_flag) + { + h.valid_time = clib_host_to_net_u32(MIN_ADV_VALID_LIFETIME); + h.preferred_time = 0; + } + else + { + if(pr_info->decrement_lifetime_flag) + { + pr_info->adv_valid_lifetime_in_secs = ((pr_info->valid_lifetime_expires > now)) ? + (pr_info->valid_lifetime_expires - now) : 0; + + pr_info->adv_pref_lifetime_in_secs = ((pr_info->pref_lifetime_expires > now)) ? + (pr_info->pref_lifetime_expires - now) : 0; + } + + h.valid_time = clib_host_to_net_u32(pr_info->adv_valid_lifetime_in_secs); + h.preferred_time = clib_host_to_net_u32(pr_info->adv_pref_lifetime_in_secs) ; + } + h.unused = 0; + + clib_memcpy(&h.dst_address, &pr_info->prefix, sizeof(ip6_address_t)); + + payload_length += sizeof( icmp6_neighbor_discovery_prefix_information_option_t); + + vlib_buffer_add_data (vm, + p0->free_list_index, + bi0, + (void *)&h, sizeof(icmp6_neighbor_discovery_prefix_information_option_t)); + + } + })); + /* *INDENT-ON* */ /* add additional options before here */ /* finish building the router advertisement... */ - if(!is_unspecified && radv_info->send_unicast) + if (!is_unspecified && radv_info->send_unicast) { ip0->dst_address = ip0->src_address; } else - { - /* target address is all-nodes mcast addr */ - ip6_set_reserved_multicast_address(&ip0->dst_address, - IP6_MULTICAST_SCOPE_link_local, - IP6_MULTICAST_GROUP_ID_all_hosts); + { + /* target address is all-nodes mcast addr */ + ip6_set_reserved_multicast_address + (&ip0->dst_address, + IP6_MULTICAST_SCOPE_link_local, + IP6_MULTICAST_GROUP_ID_all_hosts); } - + /* source address MUST be the link-local address */ ip0->src_address = radv_info->link_local_address; - + ip0->hop_limit = 255; - ip0->payload_length = clib_host_to_net_u16 (payload_length); - - icmp6_router_advertisement_header_t * rh0 = (icmp6_router_advertisement_header_t *)(ip0 + 1); - rh0->icmp.checksum = - ip6_tcp_udp_icmp_compute_checksum (vm, p0, ip0, - &bogus_length); - ASSERT(bogus_length == 0); - + ip0->payload_length = + clib_host_to_net_u16 (payload_length); + + icmp6_router_advertisement_header_t *rh0 = + (icmp6_router_advertisement_header_t *) (ip0 + 1); + rh0->icmp.checksum = + ip6_tcp_udp_icmp_compute_checksum (vm, p0, ip0, + &bogus_length); + ASSERT (bogus_length == 0); + /* setup output if and adjacency */ - vnet_buffer (p0)->sw_if_index[VLIB_RX] = + vnet_buffer (p0)->sw_if_index[VLIB_RX] = vnet_main.local_interface_sw_if_index; - - if (is_solicitation) - { - ethernet_header_t *eth0; - /* Reuse current MAC header, copy SMAC to DMAC and - * interface MAC to SMAC */ - vlib_buffer_reset (p0); - eth0 = vlib_buffer_get_current(p0); - clib_memcpy(eth0->dst_address, eth0->src_address, 6); - clib_memcpy(eth0->src_address, eth_if0->address, 6); - next0 = is_dropped ? - next0 : ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_TX; - vnet_buffer(p0)->sw_if_index[VLIB_TX] = sw_if_index0; - } - else - { - adj_index0 = radv_info->all_nodes_adj_index; - if (adj_index0 == 0) - error0 = ICMP6_ERROR_DST_LOOKUP_MISS; - else - { - ip_adjacency_t * adj0 = ip_get_adjacency (&im->lookup_main, adj_index0); - error0 = - ((adj0->rewrite_header.sw_if_index != sw_if_index0 - || adj0->lookup_next_index != IP_LOOKUP_NEXT_REWRITE) - ? ICMP6_ERROR_ROUTER_SOLICITATION_DEST_UNKNOWN - : error0); - next0 = is_dropped ? - next0 : ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_RW; - vnet_buffer (p0)->ip.adj_index[VLIB_TX] = adj_index0; - } - } - p0->flags |= VNET_BUFFER_LOCALLY_ORIGINATED; - - radv_info->n_solicitations_dropped += is_dropped; - radv_info->n_solicitations_rcvd += is_solicitation; - - if((error0 == ICMP6_ERROR_NONE) && !is_dropped) + + if (is_solicitation) + { + ethernet_header_t *eth0; + /* Reuse current MAC header, copy SMAC to DMAC and + * interface MAC to SMAC */ + vlib_buffer_reset (p0); + eth0 = vlib_buffer_get_current (p0); + clib_memcpy (eth0->dst_address, eth0->src_address, + 6); + clib_memcpy (eth0->src_address, eth_if0->address, + 6); + next0 = + is_dropped ? next0 : + ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_TX; + vnet_buffer (p0)->sw_if_index[VLIB_TX] = + sw_if_index0; + } + else + { + adj_index0 = radv_info->all_nodes_adj_index; + if (adj_index0 == 0) + error0 = ICMP6_ERROR_DST_LOOKUP_MISS; + else + { + ip_adjacency_t *adj0 = + ip_get_adjacency (&im->lookup_main, + adj_index0); + error0 = + ((adj0->rewrite_header.sw_if_index != + sw_if_index0 + || adj0->lookup_next_index != + IP_LOOKUP_NEXT_REWRITE) ? + ICMP6_ERROR_ROUTER_SOLICITATION_DEST_UNKNOWN + : error0); + next0 = + is_dropped ? next0 : + ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_RW; + vnet_buffer (p0)->ip.adj_index[VLIB_TX] = + adj_index0; + } + } + p0->flags |= VNET_BUFFER_LOCALLY_ORIGINATED; + + radv_info->n_solicitations_dropped += is_dropped; + radv_info->n_solicitations_rcvd += is_solicitation; + + if ((error0 == ICMP6_ERROR_NONE) && !is_dropped) { radv_info->n_advertisements_sent++; n_advertisements_sent++; @@ -1487,43 +1556,45 @@ icmp6_router_solicitation(vlib_main_t * vm, p0->error = error_node->errors[error0]; - if(error0 != ICMP6_ERROR_NONE) + if (error0 != ICMP6_ERROR_NONE) vlib_error_count (vm, error_node->node_index, error0, 1); - + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, n_left_to_next, bi0, next0); - + } - + vlib_put_next_frame (vm, node, next_index, n_left_to_next); } /* Account for router advertisements sent. */ - vlib_error_count (vm, error_node->node_index, ICMP6_ERROR_ROUTER_ADVERTISEMENTS_TX, n_advertisements_sent); + vlib_error_count (vm, error_node->node_index, + ICMP6_ERROR_ROUTER_ADVERTISEMENTS_TX, + n_advertisements_sent); return frame->n_vectors; } /* validate advertised info for consistancy (see RFC-4861 section 6.2.7) - log any inconsistencies, packet will always be dropped */ static_always_inline uword -icmp6_router_advertisement(vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) +icmp6_router_advertisement (vlib_main_t * vm, + vlib_node_runtime_t * node, vlib_frame_t * frame) { - vnet_main_t * vnm = vnet_get_main(); - ip6_neighbor_main_t * nm = &ip6_neighbor_main; + vnet_main_t *vnm = vnet_get_main (); + ip6_neighbor_main_t *nm = &ip6_neighbor_main; uword n_packets = frame->n_vectors; - u32 * from, * to_next; + u32 *from, *to_next; u32 n_left_from, n_left_to_next, next_index; u32 n_advertisements_rcvd = 0; - vlib_node_runtime_t * error_node = vlib_node_get_runtime (vm, ip6_icmp_input_node.index); + vlib_node_runtime_t *error_node = + vlib_node_get_runtime (vm, ip6_icmp_input_node.index); from = vlib_frame_vector_args (frame); n_left_from = n_packets; next_index = node->cached_next_index; - + if (node->flags & VLIB_NODE_FLAG_TRACE) vlib_trace_frame_buffers_only (vm, node, from, frame->n_vectors, /* stride */ 1, @@ -1532,13 +1603,13 @@ icmp6_router_advertisement(vlib_main_t * vm, while (n_left_from > 0) { vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); - + while (n_left_from > 0 && n_left_to_next > 0) { - vlib_buffer_t * p0; - ip6_header_t * ip0; + vlib_buffer_t *p0; + ip6_header_t *ip0; ip6_radv_t *radv_info = 0; - icmp6_router_advertisement_header_t * h0; + icmp6_router_advertisement_header_t *h0; u32 bi0, options_len0, sw_if_index0, next0, error0; bi0 = to_next[0] = from[0]; @@ -1547,196 +1618,252 @@ icmp6_router_advertisement(vlib_main_t * vm, to_next += 1; n_left_from -= 1; n_left_to_next -= 1; - + p0 = vlib_get_buffer (vm, bi0); ip0 = vlib_buffer_get_current (p0); h0 = ip6_next_header (ip0); - options_len0 = clib_net_to_host_u16 (ip0->payload_length) - sizeof (h0[0]); + options_len0 = + clib_net_to_host_u16 (ip0->payload_length) - sizeof (h0[0]); error0 = ICMP6_ERROR_NONE; sw_if_index0 = vnet_buffer (p0)->sw_if_index[VLIB_RX]; - /* Check that source address is link-local*/ - error0 = (!ip6_address_is_link_local_unicast (&ip0->src_address)) ? + /* Check that source address is link-local */ + error0 = (!ip6_address_is_link_local_unicast (&ip0->src_address)) ? ICMP6_ERROR_ROUTER_ADVERTISEMENT_SOURCE_NOT_LINK_LOCAL : error0; /* default is to drop */ next0 = ICMP6_ROUTER_SOLICITATION_NEXT_DROP; - + n_advertisements_rcvd++; if (error0 == ICMP6_ERROR_NONE) { - vnet_sw_interface_t * sw_if0; - ethernet_interface_t * eth_if0; - + vnet_sw_interface_t *sw_if0; + ethernet_interface_t *eth_if0; + sw_if0 = vnet_get_sup_sw_interface (vnm, sw_if_index0); ASSERT (sw_if0->type == VNET_SW_INTERFACE_TYPE_HARDWARE); - eth_if0 = ethernet_get_interface (ðernet_main, sw_if0->hw_if_index); + eth_if0 = + ethernet_get_interface (ðernet_main, sw_if0->hw_if_index); /* only support ethernet interface type for now */ - error0 = (!eth_if0) ? ICMP6_ERROR_ROUTER_SOLICITATION_UNSUPPORTED_INTF : error0; + error0 = + (!eth_if0) ? ICMP6_ERROR_ROUTER_SOLICITATION_UNSUPPORTED_INTF + : error0; if (error0 == ICMP6_ERROR_NONE) { u32 ri; /* look up the radv_t information for this interface */ - vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index0, ~0); + vec_validate_init_empty + (nm->if_radv_pool_index_by_sw_if_index, sw_if_index0, ~0); ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index0]; - if(ri != ~0) - radv_info = pool_elt_at_index (nm->if_radv_pool, ri); - - error0 = ((!radv_info) ? ICMP6_ERROR_ROUTER_SOLICITATION_RADV_NOT_CONFIG : error0); + if (ri != ~0) + radv_info = pool_elt_at_index (nm->if_radv_pool, ri); + + error0 = + ((!radv_info) ? + ICMP6_ERROR_ROUTER_SOLICITATION_RADV_NOT_CONFIG : + error0); if (error0 == ICMP6_ERROR_NONE) { /* validate advertised information */ - if((h0->current_hop_limit && radv_info->curr_hop_limit) && - (h0->current_hop_limit != radv_info->curr_hop_limit)) + if ((h0->current_hop_limit && radv_info->curr_hop_limit) + && (h0->current_hop_limit != + radv_info->curr_hop_limit)) { - ip6_neighbor_syslog(vm, LOG_WARNING, - "our AdvCurHopLimit on %U doesn't agree with %U", - format_vnet_sw_if_index_name, vnm, sw_if_index0, format_ip6_address, &ip0->src_address); + ip6_neighbor_syslog (vm, LOG_WARNING, + "our AdvCurHopLimit on %U doesn't agree with %U", + format_vnet_sw_if_index_name, + vnm, sw_if_index0, + format_ip6_address, + &ip0->src_address); } - if((h0->flags & ICMP6_ROUTER_DISCOVERY_FLAG_ADDRESS_CONFIG_VIA_DHCP) != - radv_info->adv_managed_flag) + if ((h0->flags & + ICMP6_ROUTER_DISCOVERY_FLAG_ADDRESS_CONFIG_VIA_DHCP) + != radv_info->adv_managed_flag) { - ip6_neighbor_syslog(vm, LOG_WARNING, - "our AdvManagedFlag on %U doesn't agree with %U", - format_vnet_sw_if_index_name, vnm, sw_if_index0, format_ip6_address, &ip0->src_address); + ip6_neighbor_syslog (vm, LOG_WARNING, + "our AdvManagedFlag on %U doesn't agree with %U", + format_vnet_sw_if_index_name, + vnm, sw_if_index0, + format_ip6_address, + &ip0->src_address); } - if((h0->flags & ICMP6_ROUTER_DISCOVERY_FLAG_OTHER_CONFIG_VIA_DHCP) != - radv_info->adv_other_flag) + if ((h0->flags & + ICMP6_ROUTER_DISCOVERY_FLAG_OTHER_CONFIG_VIA_DHCP) + != radv_info->adv_other_flag) { - ip6_neighbor_syslog(vm, LOG_WARNING, - "our AdvOtherConfigFlag on %U doesn't agree with %U", - format_vnet_sw_if_index_name, vnm, sw_if_index0, format_ip6_address, &ip0->src_address); + ip6_neighbor_syslog (vm, LOG_WARNING, + "our AdvOtherConfigFlag on %U doesn't agree with %U", + format_vnet_sw_if_index_name, + vnm, sw_if_index0, + format_ip6_address, + &ip0->src_address); } - if((h0->time_in_msec_between_retransmitted_neighbor_solicitations && - radv_info->adv_time_in_msec_between_retransmitted_neighbor_solicitations) && - (h0->time_in_msec_between_retransmitted_neighbor_solicitations != - clib_host_to_net_u32(radv_info->adv_time_in_msec_between_retransmitted_neighbor_solicitations))) + if ((h0-> + time_in_msec_between_retransmitted_neighbor_solicitations + && radv_info-> + adv_time_in_msec_between_retransmitted_neighbor_solicitations) + && (h0-> + time_in_msec_between_retransmitted_neighbor_solicitations + != + clib_host_to_net_u32 (radv_info-> + adv_time_in_msec_between_retransmitted_neighbor_solicitations))) { - ip6_neighbor_syslog(vm, LOG_WARNING, - "our AdvRetransTimer on %U doesn't agree with %U", - format_vnet_sw_if_index_name, vnm, sw_if_index0, format_ip6_address, &ip0->src_address); + ip6_neighbor_syslog (vm, LOG_WARNING, + "our AdvRetransTimer on %U doesn't agree with %U", + format_vnet_sw_if_index_name, + vnm, sw_if_index0, + format_ip6_address, + &ip0->src_address); } - if((h0->neighbor_reachable_time_in_msec && - radv_info->adv_neighbor_reachable_time_in_msec) && - (h0->neighbor_reachable_time_in_msec != - clib_host_to_net_u32(radv_info->adv_neighbor_reachable_time_in_msec))) + if ((h0->neighbor_reachable_time_in_msec && + radv_info->adv_neighbor_reachable_time_in_msec) && + (h0->neighbor_reachable_time_in_msec != + clib_host_to_net_u32 + (radv_info->adv_neighbor_reachable_time_in_msec))) { - ip6_neighbor_syslog(vm, LOG_WARNING, - "our AdvReachableTime on %U doesn't agree with %U", - format_vnet_sw_if_index_name, vnm, sw_if_index0, format_ip6_address, &ip0->src_address); + ip6_neighbor_syslog (vm, LOG_WARNING, + "our AdvReachableTime on %U doesn't agree with %U", + format_vnet_sw_if_index_name, + vnm, sw_if_index0, + format_ip6_address, + &ip0->src_address); } /* check for MTU or prefix options or .. */ - u8 * opt_hdr = (u8 *)(h0 + 1); - while( options_len0 > 0) + u8 *opt_hdr = (u8 *) (h0 + 1); + while (options_len0 > 0) { - icmp6_neighbor_discovery_option_header_t *o0 = ( icmp6_neighbor_discovery_option_header_t *)opt_hdr; + icmp6_neighbor_discovery_option_header_t *o0 = + (icmp6_neighbor_discovery_option_header_t *) + opt_hdr; int opt_len = o0->n_data_u64s << 3; - icmp6_neighbor_discovery_option_type_t option_type = o0->type; + icmp6_neighbor_discovery_option_type_t option_type = + o0->type; - if(options_len0 < 2) + if (options_len0 < 2) { - ip6_neighbor_syslog(vm, LOG_ERR, - "malformed RA packet on %U from %U", - format_vnet_sw_if_index_name, vnm, sw_if_index0, format_ip6_address, &ip0->src_address); + ip6_neighbor_syslog (vm, LOG_ERR, + "malformed RA packet on %U from %U", + format_vnet_sw_if_index_name, + vnm, sw_if_index0, + format_ip6_address, + &ip0->src_address); break; } - if(opt_len == 0) + if (opt_len == 0) { - ip6_neighbor_syslog(vm, LOG_ERR, - " zero length option in RA on %U from %U", - format_vnet_sw_if_index_name, vnm, sw_if_index0, format_ip6_address, &ip0->src_address); + ip6_neighbor_syslog (vm, LOG_ERR, + " zero length option in RA on %U from %U", + format_vnet_sw_if_index_name, + vnm, sw_if_index0, + format_ip6_address, + &ip0->src_address); break; } - else if( opt_len > options_len0) + else if (opt_len > options_len0) { - ip6_neighbor_syslog(vm, LOG_ERR, - "option length in RA packet greater than total length on %U from %U", - format_vnet_sw_if_index_name, vnm, sw_if_index0, format_ip6_address, &ip0->src_address); + ip6_neighbor_syslog (vm, LOG_ERR, + "option length in RA packet greater than total length on %U from %U", + format_vnet_sw_if_index_name, + vnm, sw_if_index0, + format_ip6_address, + &ip0->src_address); break; } options_len0 -= opt_len; opt_hdr += opt_len; - switch(option_type) + switch (option_type) { case ICMP6_NEIGHBOR_DISCOVERY_OPTION_mtu: - { + { icmp6_neighbor_discovery_mtu_option_t *h = - (icmp6_neighbor_discovery_mtu_option_t *)(o0); + (icmp6_neighbor_discovery_mtu_option_t + *) (o0); - if(opt_len < sizeof(*h)) + if (opt_len < sizeof (*h)) break; - if((h->mtu && radv_info->adv_link_mtu) && - (h->mtu != clib_host_to_net_u32(radv_info->adv_link_mtu))) + if ((h->mtu && radv_info->adv_link_mtu) && + (h->mtu != + clib_host_to_net_u32 + (radv_info->adv_link_mtu))) { - ip6_neighbor_syslog(vm, LOG_WARNING, - "our AdvLinkMTU on %U doesn't agree with %U", - format_vnet_sw_if_index_name, vnm, sw_if_index0, format_ip6_address, &ip0->src_address); + ip6_neighbor_syslog (vm, LOG_WARNING, + "our AdvLinkMTU on %U doesn't agree with %U", + format_vnet_sw_if_index_name, + vnm, sw_if_index0, + format_ip6_address, + &ip0->src_address); } } break; - + case ICMP6_NEIGHBOR_DISCOVERY_OPTION_prefix_information: { - icmp6_neighbor_discovery_prefix_information_option_t *h = - (icmp6_neighbor_discovery_prefix_information_option_t *)(o0); - + icmp6_neighbor_discovery_prefix_information_option_t + * h = + (icmp6_neighbor_discovery_prefix_information_option_t + *) (o0); + /* validate advertised prefix options */ - ip6_radv_prefix_t *pr_info; + ip6_radv_prefix_t *pr_info; u32 preferred, valid; - if(opt_len < sizeof(*h)) + if (opt_len < sizeof (*h)) break; - preferred = clib_net_to_host_u32(h->preferred_time); - valid = clib_net_to_host_u32(h->valid_time); + preferred = + clib_net_to_host_u32 (h->preferred_time); + valid = clib_net_to_host_u32 (h->valid_time); /* look for matching prefix - if we our advertising it, it better be consistant */ - pool_foreach (pr_info, radv_info->adv_prefixes_pool, ({ - - ip6_address_t mask; - ip6_address_mask_from_width(&mask, pr_info->prefix_len); - - if(pr_info->enabled && - (pr_info->prefix_len == h->dst_address_length) && - ip6_address_is_equal_masked (&pr_info->prefix, &h->dst_address, &mask)) - { - /* found it */ - if(!pr_info->decrement_lifetime_flag && - valid != pr_info->adv_valid_lifetime_in_secs) - { - ip6_neighbor_syslog(vm, LOG_WARNING, - "our ADV validlifetime on %U for %U does not agree with %U", - format_vnet_sw_if_index_name, vnm, sw_if_index0,format_ip6_address, &pr_info->prefix, - format_ip6_address, &h->dst_address); - } - if(!pr_info->decrement_lifetime_flag && - preferred != pr_info->adv_pref_lifetime_in_secs) - { - ip6_neighbor_syslog(vm, LOG_WARNING, - "our ADV preferredlifetime on %U for %U does not agree with %U", - format_vnet_sw_if_index_name, vnm, sw_if_index0,format_ip6_address, &pr_info->prefix, - format_ip6_address, &h->dst_address); - } - } - break; - })); + /* *INDENT-OFF* */ + pool_foreach (pr_info, radv_info->adv_prefixes_pool, + ({ + + ip6_address_t mask; + ip6_address_mask_from_width(&mask, pr_info->prefix_len); + + if(pr_info->enabled && + (pr_info->prefix_len == h->dst_address_length) && + ip6_address_is_equal_masked (&pr_info->prefix, &h->dst_address, &mask)) + { + /* found it */ + if(!pr_info->decrement_lifetime_flag && + valid != pr_info->adv_valid_lifetime_in_secs) + { + ip6_neighbor_syslog(vm, LOG_WARNING, + "our ADV validlifetime on %U for %U does not agree with %U", + format_vnet_sw_if_index_name, vnm, sw_if_index0,format_ip6_address, &pr_info->prefix, + format_ip6_address, &h->dst_address); + } + if(!pr_info->decrement_lifetime_flag && + preferred != pr_info->adv_pref_lifetime_in_secs) + { + ip6_neighbor_syslog(vm, LOG_WARNING, + "our ADV preferredlifetime on %U for %U does not agree with %U", + format_vnet_sw_if_index_name, vnm, sw_if_index0,format_ip6_address, &pr_info->prefix, + format_ip6_address, &h->dst_address); + } + } + break; + })); + /* *INDENT-ON* */ break; } default: @@ -1750,19 +1877,21 @@ icmp6_router_advertisement(vlib_main_t * vm, p0->error = error_node->errors[error0]; - if(error0 != ICMP6_ERROR_NONE) + if (error0 != ICMP6_ERROR_NONE) vlib_error_count (vm, error_node->node_index, error0, 1); - + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, n_left_to_next, bi0, next0); } - + vlib_put_next_frame (vm, node, next_index, n_left_to_next); } /* Account for router advertisements sent. */ - vlib_error_count (vm, error_node->node_index, ICMP6_ERROR_ROUTER_ADVERTISEMENTS_RX, n_advertisements_rcvd); + vlib_error_count (vm, error_node->node_index, + ICMP6_ERROR_ROUTER_ADVERTISEMENTS_RX, + n_advertisements_rcvd); return frame->n_vectors; } @@ -1770,257 +1899,275 @@ icmp6_router_advertisement(vlib_main_t * vm, /* create and initialize router advertisement parameters with default values for this intfc */ static u32 ip6_neighbor_sw_interface_add_del (vnet_main_t * vnm, - u32 sw_if_index, - u32 is_add) + u32 sw_if_index, u32 is_add) { - ip6_neighbor_main_t * nm = &ip6_neighbor_main; - ip6_radv_t * a= 0; + ip6_neighbor_main_t *nm = &ip6_neighbor_main; + ip6_radv_t *a = 0; u32 ri = ~0; - vnet_sw_interface_t * sw_if0; - ethernet_interface_t * eth_if0 = 0; + vnet_sw_interface_t *sw_if0; + ethernet_interface_t *eth_if0 = 0; /* lookup radv container - ethernet interfaces only */ sw_if0 = vnet_get_sup_sw_interface (vnm, sw_if_index); - if(sw_if0->type == VNET_SW_INTERFACE_TYPE_HARDWARE) + if (sw_if0->type == VNET_SW_INTERFACE_TYPE_HARDWARE) eth_if0 = ethernet_get_interface (ðernet_main, sw_if0->hw_if_index); - if(!eth_if0) + if (!eth_if0) return ri; - - vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, ~0); + + vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, + ~0); ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index]; - if(ri != ~0) + if (ri != ~0) { a = pool_elt_at_index (nm->if_radv_pool, ri); - if(!is_add) + if (!is_add) { - u32 i, * to_delete = 0; - ip6_radv_prefix_t *p; + u32 i, *to_delete = 0; + ip6_radv_prefix_t *p; ip6_mldp_group_t *m; - + /* remove adjacencies */ - adj_unlock(a->all_nodes_adj_index); - adj_unlock(a->all_routers_adj_index); - adj_unlock(a->all_mldv2_routers_adj_index); - + adj_unlock (a->all_nodes_adj_index); + adj_unlock (a->all_routers_adj_index); + adj_unlock (a->all_mldv2_routers_adj_index); + /* clean up prefix_pool */ - pool_foreach (p, a->adv_prefixes_pool, ({ - vec_add1 (to_delete, p - a->adv_prefixes_pool); - })); - + /* *INDENT-OFF* */ + pool_foreach (p, a->adv_prefixes_pool, + ({ + vec_add1 (to_delete, p - a->adv_prefixes_pool); + })); + /* *INDENT-ON* */ + for (i = 0; i < vec_len (to_delete); i++) { p = pool_elt_at_index (a->adv_prefixes_pool, to_delete[i]); mhash_unset (&a->address_to_prefix_index, &p->prefix, 0); pool_put (a->adv_prefixes_pool, p); } - + vec_free (to_delete); to_delete = 0; - + /* clean up mldp group pool */ - pool_foreach (m, a->mldp_group_pool, ({ - vec_add1 (to_delete, m - a->mldp_group_pool); - })); - + /* *INDENT-OFF* */ + pool_foreach (m, a->mldp_group_pool, + ({ + vec_add1 (to_delete, m - a->mldp_group_pool); + })); + /* *INDENT-ON* */ + for (i = 0; i < vec_len (to_delete); i++) { m = pool_elt_at_index (a->mldp_group_pool, to_delete[i]); mhash_unset (&a->address_to_mldp_index, &m->mcast_address, 0); pool_put (a->mldp_group_pool, m); } - + vec_free (to_delete); - - pool_put (nm->if_radv_pool, a); + + pool_put (nm->if_radv_pool, a); nm->if_radv_pool_index_by_sw_if_index[sw_if_index] = ~0; ri = ~0; } } - else - { - if(is_add) - { - vnet_hw_interface_t * hw_if0; - - hw_if0 = vnet_get_sup_hw_interface (vnm, sw_if_index); - - pool_get (nm->if_radv_pool, a); - - ri = a - nm->if_radv_pool; - nm->if_radv_pool_index_by_sw_if_index[sw_if_index] = ri; - - /* initialize default values (most of which are zero) */ - memset (a, 0, sizeof (a[0])); - - a->sw_if_index = sw_if_index; - a->fib_index = ~0; - a->max_radv_interval = DEF_MAX_RADV_INTERVAL; - a->min_radv_interval = DEF_MIN_RADV_INTERVAL; - a->curr_hop_limit = DEF_CURR_HOP_LIMIT; - a->adv_router_lifetime_in_sec = DEF_DEF_RTR_LIFETIME; - - a->adv_link_layer_address = 1; /* send ll address source address option */ - - a->min_delay_between_radv = MIN_DELAY_BETWEEN_RAS; - a->max_delay_between_radv = MAX_DELAY_BETWEEN_RAS; - a->max_rtr_default_lifetime = MAX_DEF_RTR_LIFETIME; - a->seed = (u32) clib_cpu_time_now(); - (void) random_u32 (&a->seed); - a->randomizer = clib_cpu_time_now(); - (void) random_u64 (&a->randomizer); - - a->initial_adverts_count = MAX_INITIAL_RTR_ADVERTISEMENTS ; - a->initial_adverts_sent = a->initial_adverts_count-1; - a->initial_adverts_interval = MAX_INITIAL_RTR_ADVERT_INTERVAL; - - /* deafult is to send */ - a->send_radv = 1; - - /* fill in radv_info for this interface that will be needed later */ - a->adv_link_mtu = hw_if0->max_l3_packet_bytes[VLIB_RX]; - - clib_memcpy (a->link_layer_address, eth_if0->address, 6); - - /* fill in default link-local address (this may be overridden) */ - ip6_link_local_address_from_ethernet_address (&a->link_local_address, eth_if0->address); - a->link_local_prefix_len = 64; - - mhash_init (&a->address_to_prefix_index, sizeof (uword), sizeof (ip6_address_t)); - mhash_init (&a->address_to_mldp_index, sizeof (uword), sizeof (ip6_address_t)); - - { - u8 link_layer_address[6] = - {0x33, 0x33, 0x00, 0x00, 0x00, IP6_MULTICAST_GROUP_ID_all_hosts}; - - a->all_nodes_adj_index = adj_rewrite_add_and_lock(FIB_PROTOCOL_IP6, - VNET_LINK_IP6, - sw_if_index, - link_layer_address); - } - - { - u8 link_layer_address[6] = - {0x33, 0x33, 0x00, 0x00, 0x00, IP6_MULTICAST_GROUP_ID_all_routers}; - - a->all_routers_adj_index = adj_rewrite_add_and_lock(FIB_PROTOCOL_IP6, - VNET_LINK_IP6, - sw_if_index, - link_layer_address); - } - - { - u8 link_layer_address[6] = - {0x33, 0x33, 0x00, 0x00, 0x00, IP6_MULTICAST_GROUP_ID_mldv2_routers}; - - a->all_mldv2_routers_adj_index = - adj_rewrite_add_and_lock(FIB_PROTOCOL_IP6, + else + { + if (is_add) + { + vnet_hw_interface_t *hw_if0; + + hw_if0 = vnet_get_sup_hw_interface (vnm, sw_if_index); + + pool_get (nm->if_radv_pool, a); + + ri = a - nm->if_radv_pool; + nm->if_radv_pool_index_by_sw_if_index[sw_if_index] = ri; + + /* initialize default values (most of which are zero) */ + memset (a, 0, sizeof (a[0])); + + a->sw_if_index = sw_if_index; + a->fib_index = ~0; + a->max_radv_interval = DEF_MAX_RADV_INTERVAL; + a->min_radv_interval = DEF_MIN_RADV_INTERVAL; + a->curr_hop_limit = DEF_CURR_HOP_LIMIT; + a->adv_router_lifetime_in_sec = DEF_DEF_RTR_LIFETIME; + + a->adv_link_layer_address = 1; /* send ll address source address option */ + + a->min_delay_between_radv = MIN_DELAY_BETWEEN_RAS; + a->max_delay_between_radv = MAX_DELAY_BETWEEN_RAS; + a->max_rtr_default_lifetime = MAX_DEF_RTR_LIFETIME; + a->seed = (u32) clib_cpu_time_now (); + (void) random_u32 (&a->seed); + a->randomizer = clib_cpu_time_now (); + (void) random_u64 (&a->randomizer); + + a->initial_adverts_count = MAX_INITIAL_RTR_ADVERTISEMENTS; + a->initial_adverts_sent = a->initial_adverts_count - 1; + a->initial_adverts_interval = MAX_INITIAL_RTR_ADVERT_INTERVAL; + + /* deafult is to send */ + a->send_radv = 1; + + /* fill in radv_info for this interface that will be needed later */ + a->adv_link_mtu = hw_if0->max_l3_packet_bytes[VLIB_RX]; + + clib_memcpy (a->link_layer_address, eth_if0->address, 6); + + /* fill in default link-local address (this may be overridden) */ + ip6_link_local_address_from_ethernet_address + (&a->link_local_address, eth_if0->address); + a->link_local_prefix_len = 64; + + mhash_init (&a->address_to_prefix_index, sizeof (uword), + sizeof (ip6_address_t)); + mhash_init (&a->address_to_mldp_index, sizeof (uword), + sizeof (ip6_address_t)); + + { + u8 link_layer_address[6] = { 0x33, 0x33, 0x00, 0x00, 0x00, + IP6_MULTICAST_GROUP_ID_all_hosts + }; + + a->all_nodes_adj_index = + adj_rewrite_add_and_lock (FIB_PROTOCOL_IP6, VNET_LINK_IP6, + sw_if_index, link_layer_address); + } + + { + u8 link_layer_address[6] = { 0x33, 0x33, 0x00, 0x00, 0x00, + IP6_MULTICAST_GROUP_ID_all_routers + }; + + a->all_routers_adj_index = + adj_rewrite_add_and_lock (FIB_PROTOCOL_IP6, VNET_LINK_IP6, + sw_if_index, link_layer_address); + } + + { + u8 link_layer_address[6] = { 0x33, 0x33, 0x00, 0x00, 0x00, + IP6_MULTICAST_GROUP_ID_mldv2_routers + }; + + a->all_mldv2_routers_adj_index = + adj_rewrite_add_and_lock (FIB_PROTOCOL_IP6, VNET_LINK_IP6, - sw_if_index, - link_layer_address); - } - - /* add multicast groups we will always be reporting */ - ip6_address_t addr; - ip6_mldp_group_t *mcast_group_info; - - ip6_set_reserved_multicast_address (&addr, - IP6_MULTICAST_SCOPE_link_local, - IP6_MULTICAST_GROUP_ID_all_hosts); - - /* lookup mldp info for this interface */ - - uword * p = mhash_get (&a->address_to_mldp_index, &addr); - mcast_group_info = p ? pool_elt_at_index (a->mldp_group_pool, p[0]) : 0; - - /* add address */ - if(!mcast_group_info) - { - /* add */ - u32 mi; - pool_get (a->mldp_group_pool, mcast_group_info); - - mi = mcast_group_info - a->mldp_group_pool; - mhash_set (&a->address_to_mldp_index, &addr, mi, /* old_value */ 0); - - mcast_group_info->type = 4; - mcast_group_info->mcast_source_address_pool = 0; - mcast_group_info->num_sources = 0; - clib_memcpy(&mcast_group_info->mcast_address, &addr, sizeof(ip6_address_t)); - } - - ip6_set_reserved_multicast_address (&addr, - IP6_MULTICAST_SCOPE_link_local, - IP6_MULTICAST_GROUP_ID_all_routers); - - p = mhash_get (&a->address_to_mldp_index, &addr); - mcast_group_info = p ? pool_elt_at_index (a->mldp_group_pool, p[0]) : 0; - - if(!mcast_group_info) - { - /* add */ - u32 mi; - pool_get (a->mldp_group_pool, mcast_group_info); - - mi = mcast_group_info - a->mldp_group_pool; - mhash_set (&a->address_to_mldp_index, &addr, mi, /* old_value */ 0); - - mcast_group_info->type = 4; - mcast_group_info->mcast_source_address_pool = 0; - mcast_group_info->num_sources = 0; - clib_memcpy(&mcast_group_info->mcast_address, &addr, sizeof(ip6_address_t)); - } - - ip6_set_reserved_multicast_address (&addr, - IP6_MULTICAST_SCOPE_link_local, - IP6_MULTICAST_GROUP_ID_mldv2_routers); - - p = mhash_get (&a->address_to_mldp_index, &addr); - mcast_group_info = p ? pool_elt_at_index (a->mldp_group_pool, p[0]) : 0; - - if(!mcast_group_info) - { - /* add */ - u32 mi; - pool_get (a->mldp_group_pool, mcast_group_info); - - mi = mcast_group_info - a->mldp_group_pool; - mhash_set (&a->address_to_mldp_index, &addr, mi, /* old_value */ 0); - - mcast_group_info->type = 4; - mcast_group_info->mcast_source_address_pool = 0; - mcast_group_info->num_sources = 0; - clib_memcpy(&mcast_group_info->mcast_address, &addr, sizeof(ip6_address_t)); - } - } - } - return ri; + sw_if_index, link_layer_address); + } + + /* add multicast groups we will always be reporting */ + ip6_address_t addr; + ip6_mldp_group_t *mcast_group_info; + + ip6_set_reserved_multicast_address (&addr, + IP6_MULTICAST_SCOPE_link_local, + IP6_MULTICAST_GROUP_ID_all_hosts); + + /* lookup mldp info for this interface */ + + uword *p = mhash_get (&a->address_to_mldp_index, &addr); + mcast_group_info = + p ? pool_elt_at_index (a->mldp_group_pool, p[0]) : 0; + + /* add address */ + if (!mcast_group_info) + { + /* add */ + u32 mi; + pool_get (a->mldp_group_pool, mcast_group_info); + + mi = mcast_group_info - a->mldp_group_pool; + mhash_set (&a->address_to_mldp_index, &addr, mi, /* old_value */ + 0); + + mcast_group_info->type = 4; + mcast_group_info->mcast_source_address_pool = 0; + mcast_group_info->num_sources = 0; + clib_memcpy (&mcast_group_info->mcast_address, &addr, + sizeof (ip6_address_t)); + } + + ip6_set_reserved_multicast_address (&addr, + IP6_MULTICAST_SCOPE_link_local, + IP6_MULTICAST_GROUP_ID_all_routers); + + p = mhash_get (&a->address_to_mldp_index, &addr); + mcast_group_info = + p ? pool_elt_at_index (a->mldp_group_pool, p[0]) : 0; + + if (!mcast_group_info) + { + /* add */ + u32 mi; + pool_get (a->mldp_group_pool, mcast_group_info); + + mi = mcast_group_info - a->mldp_group_pool; + mhash_set (&a->address_to_mldp_index, &addr, mi, /* old_value */ + 0); + + mcast_group_info->type = 4; + mcast_group_info->mcast_source_address_pool = 0; + mcast_group_info->num_sources = 0; + clib_memcpy (&mcast_group_info->mcast_address, &addr, + sizeof (ip6_address_t)); + } + + ip6_set_reserved_multicast_address (&addr, + IP6_MULTICAST_SCOPE_link_local, + IP6_MULTICAST_GROUP_ID_mldv2_routers); + + p = mhash_get (&a->address_to_mldp_index, &addr); + mcast_group_info = + p ? pool_elt_at_index (a->mldp_group_pool, p[0]) : 0; + + if (!mcast_group_info) + { + /* add */ + u32 mi; + pool_get (a->mldp_group_pool, mcast_group_info); + + mi = mcast_group_info - a->mldp_group_pool; + mhash_set (&a->address_to_mldp_index, &addr, mi, /* old_value */ + 0); + + mcast_group_info->type = 4; + mcast_group_info->mcast_source_address_pool = 0; + mcast_group_info->num_sources = 0; + clib_memcpy (&mcast_group_info->mcast_address, &addr, + sizeof (ip6_address_t)); + } + } + } + return ri; } /* send an mldpv2 report */ static void -ip6_neighbor_send_mldpv2_report(u32 sw_if_index) +ip6_neighbor_send_mldpv2_report (u32 sw_if_index) { - vnet_main_t * vnm = vnet_get_main(); - vlib_main_t * vm = vnm->vlib_main; - ip6_neighbor_main_t * nm = &ip6_neighbor_main; - vnet_sw_interface_t * sw_if0; - ethernet_interface_t * eth_if0; + vnet_main_t *vnm = vnet_get_main (); + vlib_main_t *vm = vnm->vlib_main; + ip6_neighbor_main_t *nm = &ip6_neighbor_main; + vnet_sw_interface_t *sw_if0; + ethernet_interface_t *eth_if0; u32 ri; int bogus_length; - ip6_radv_t *radv_info; + ip6_radv_t *radv_info; u16 payload_length; - vlib_buffer_t * b0; - ip6_header_t * ip0; - u32 * to_next; - vlib_frame_t * f; + vlib_buffer_t *b0; + ip6_header_t *ip0; + u32 *to_next; + vlib_frame_t *f; u32 bo0; u32 n_to_alloc = 1; u32 n_allocated; - + icmp6_multicast_listener_report_header_t *rh0; icmp6_multicast_listener_report_packet_t *rp0; @@ -2032,19 +2179,20 @@ ip6_neighbor_send_mldpv2_report(u32 sw_if_index) return; /* look up the radv_t information for this interface */ - vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, ~0); - + vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, + ~0); + ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index]; - - if(ri == ~0) + + if (ri == ~0) return; - + /* send report now - build a mldpv2 report packet */ - n_allocated = vlib_buffer_alloc_from_free_list(vm, - &bo0, - n_to_alloc, - VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX); - if (PREDICT_FALSE(n_allocated == 0)) + n_allocated = vlib_buffer_alloc_from_free_list (vm, + &bo0, + n_to_alloc, + VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX); + if (PREDICT_FALSE (n_allocated == 0)) { clib_warning ("buffer allocation failure"); return; @@ -2053,36 +2201,37 @@ ip6_neighbor_send_mldpv2_report(u32 sw_if_index) b0 = vlib_get_buffer (vm, bo0); /* adjust the sizeof the buffer to just include the ipv6 header */ - b0->current_length = sizeof(icmp6_multicast_listener_report_packet_t); + b0->current_length = sizeof (icmp6_multicast_listener_report_packet_t); - payload_length = sizeof(icmp6_multicast_listener_report_header_t); + payload_length = sizeof (icmp6_multicast_listener_report_header_t); b0->error = ICMP6_ERROR_NONE; rp0 = vlib_buffer_get_current (b0); - ip0 = (ip6_header_t *)&rp0-> ip; - rh0 = (icmp6_multicast_listener_report_header_t *)&rp0-> report_hdr; - - memset (rp0 , 0x0, sizeof (icmp6_multicast_listener_report_packet_t)); - - ip0->ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 (0x6 << 28); - - ip0->protocol = IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS; + ip0 = (ip6_header_t *) & rp0->ip; + rh0 = (icmp6_multicast_listener_report_header_t *) & rp0->report_hdr; + + memset (rp0, 0x0, sizeof (icmp6_multicast_listener_report_packet_t)); + + ip0->ip_version_traffic_class_and_flow_label = + clib_host_to_net_u32 (0x6 << 28); + + ip0->protocol = IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS; /* for DEBUG - vnet driver won't seem to emit router alerts */ /* ip0->protocol = IP_PROTOCOL_ICMP6; */ ip0->hop_limit = 1; - + rh0->icmp.type = ICMP6_multicast_listener_report_v2; - + /* source address MUST be the link-local address */ - radv_info = pool_elt_at_index (nm->if_radv_pool, ri); - ip0->src_address = radv_info->link_local_address; + radv_info = pool_elt_at_index (nm->if_radv_pool, ri); + ip0->src_address = radv_info->link_local_address; /* destination is all mldpv2 routers */ - ip6_set_reserved_multicast_address(&ip0->dst_address, - IP6_MULTICAST_SCOPE_link_local, - IP6_MULTICAST_GROUP_ID_mldv2_routers); - + ip6_set_reserved_multicast_address (&ip0->dst_address, + IP6_MULTICAST_SCOPE_link_local, + IP6_MULTICAST_GROUP_ID_mldv2_routers); + /* add reports here */ ip6_mldp_group_t *m; int num_addr_records = 0; @@ -2091,66 +2240,69 @@ ip6_neighbor_send_mldpv2_report(u32 sw_if_index) /* fill in the hop-by-hop extension header (router alert) info */ rh0->ext_hdr.next_hdr = IP_PROTOCOL_ICMP6; rh0->ext_hdr.n_data_u64s = 0; - + rh0->alert.type = IP6_MLDP_ALERT_TYPE; rh0->alert.len = 2; rh0->alert.value = 0; - + rh0->pad.type = 1; rh0->pad.len = 0; - + rh0->icmp.checksum = 0; - pool_foreach (m, radv_info->mldp_group_pool, ({ + /* *INDENT-OFF* */ + pool_foreach (m, radv_info->mldp_group_pool, + ({ + rr.type = m->type; + rr.aux_data_len_u32s = 0; + rr.num_sources = clib_host_to_net_u16 (m->num_sources); + clib_memcpy(&rr.mcast_addr, &m->mcast_address, sizeof(ip6_address_t)); - rr.type = m->type; - rr.aux_data_len_u32s = 0; - rr.num_sources = clib_host_to_net_u16 (m->num_sources); - clib_memcpy(&rr.mcast_addr, &m->mcast_address, sizeof(ip6_address_t)); + num_addr_records++; - num_addr_records++; + vlib_buffer_add_data + (vm, b0->free_list_index, bo0, + (void *)&rr, sizeof(icmp6_multicast_address_record_t)); - vlib_buffer_add_data (vm, - b0->free_list_index, - bo0, - (void *)&rr, sizeof(icmp6_multicast_address_record_t)); - - payload_length += sizeof( icmp6_multicast_address_record_t); - })); + payload_length += sizeof( icmp6_multicast_address_record_t); + })); + /* *INDENT-ON* */ rh0->rsvd = 0; - rh0->num_addr_records = clib_host_to_net_u16(num_addr_records); - + rh0->num_addr_records = clib_host_to_net_u16 (num_addr_records); + /* update lengths */ ip0->payload_length = clib_host_to_net_u16 (payload_length); - rh0->icmp.checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b0, ip0, - &bogus_length); - ASSERT(bogus_length == 0); + rh0->icmp.checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b0, ip0, + &bogus_length); + ASSERT (bogus_length == 0); - /* + /* * OK to override w/ no regard for actual FIB, because * ip6-rewrite only looks at the adjacency. */ - vnet_buffer (b0)->sw_if_index[VLIB_RX] = + vnet_buffer (b0)->sw_if_index[VLIB_RX] = vnet_main.local_interface_sw_if_index; - - vnet_buffer (b0)->ip.adj_index[VLIB_TX] = + + vnet_buffer (b0)->ip.adj_index[VLIB_TX] = radv_info->all_mldv2_routers_adj_index; b0->flags |= VNET_BUFFER_LOCALLY_ORIGINATED; - vlib_node_t * node = vlib_get_node_by_name (vm, (u8 *) "ip6-rewrite"); - + vlib_node_t *node = vlib_get_node_by_name (vm, (u8 *) "ip6-rewrite"); + f = vlib_get_frame_to_node (vm, node->index); to_next = vlib_frame_vector_args (f); to_next[0] = bo0; f->n_vectors = 1; - + vlib_put_frame_to_node (vm, node->index, f); return; } -VLIB_REGISTER_NODE (ip6_icmp_router_solicitation_node,static) = { +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (ip6_icmp_router_solicitation_node,static) = +{ .function = icmp6_router_solicitation, .name = "icmp6-router-solicitation", @@ -2165,135 +2317,136 @@ VLIB_REGISTER_NODE (ip6_icmp_router_solicitation_node,static) = { [ICMP6_ROUTER_SOLICITATION_NEXT_REPLY_TX] = "interface-output", }, }; +/* *INDENT-ON* */ /* send a RA or update the timer info etc.. */ static uword ip6_neighbor_process_timer_event (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) + vlib_node_runtime_t * node, + vlib_frame_t * frame) { - vnet_main_t * vnm = vnet_get_main(); - ip6_neighbor_main_t * nm = &ip6_neighbor_main; - ip6_radv_t *radv_info; - vlib_frame_t * f = 0; + vnet_main_t *vnm = vnet_get_main (); + ip6_neighbor_main_t *nm = &ip6_neighbor_main; + ip6_radv_t *radv_info; + vlib_frame_t *f = 0; u32 n_this_frame = 0; u32 n_left_to_next = 0; - u32 * to_next = 0; - u32 bo0; - icmp6_router_solicitation_header_t * h0; - vlib_buffer_t * b0; + u32 *to_next = 0; + u32 bo0; + icmp6_router_solicitation_header_t *h0; + vlib_buffer_t *b0; f64 now = vlib_time_now (vm); /* Interface ip6 radv info list */ - pool_foreach (radv_info, nm->if_radv_pool, ({ + /* *INDENT-OFF* */ + pool_foreach (radv_info, nm->if_radv_pool, + ({ + if( !vnet_sw_interface_is_admin_up (vnm, radv_info->sw_if_index)) + { + radv_info->initial_adverts_sent = radv_info->initial_adverts_count-1; + radv_info->next_multicast_time = now; + radv_info->last_multicast_time = now; + radv_info->last_radv_time = 0; + radv_info->all_routers_mcast = 0; + continue; + } - if( !vnet_sw_interface_is_admin_up (vnm, radv_info->sw_if_index)) - { - radv_info->initial_adverts_sent = radv_info->initial_adverts_count-1; - radv_info->next_multicast_time = now; - radv_info->last_multicast_time = now; - radv_info->last_radv_time = 0; - radv_info->all_routers_mcast = 0; - continue; - } + /* Make sure that we've joined the all-routers multicast group */ + if(!radv_info->all_routers_mcast) + { + /* send MDLP_REPORT_EVENT message */ + ip6_neighbor_send_mldpv2_report(radv_info->sw_if_index); + radv_info->all_routers_mcast = 1; + } - /* Make sure that we've joined the all-routers multicast group */ - if(!radv_info->all_routers_mcast) - { - /* send MDLP_REPORT_EVENT message */ - ip6_neighbor_send_mldpv2_report(radv_info->sw_if_index); - radv_info->all_routers_mcast = 1; - } + /* is it time to send a multicast RA on this interface? */ + if(radv_info->send_radv && (now >= radv_info->next_multicast_time)) + { + u32 n_to_alloc = 1; + u32 n_allocated; + + f64 rfn = (radv_info->max_radv_interval - radv_info->min_radv_interval) * + random_f64 (&radv_info->seed) + radv_info->min_radv_interval; + + /* multicast send - compute next multicast send time */ + if( radv_info->initial_adverts_sent > 0) + { + radv_info->initial_adverts_sent--; + if(rfn > radv_info-> initial_adverts_interval) + rfn = radv_info-> initial_adverts_interval; + + /* check to see if we are ceasing to send */ + if( radv_info->initial_adverts_sent == 0) + if(radv_info->cease_radv) + radv_info->send_radv = 0; + } - /* is it time to send a multicast RA on this interface? */ - if(radv_info->send_radv && (now >= radv_info->next_multicast_time)) - { - u32 n_to_alloc = 1; - u32 n_allocated; - - f64 rfn = (radv_info->max_radv_interval - radv_info->min_radv_interval) * - random_f64 (&radv_info->seed) + radv_info->min_radv_interval; - - /* multicast send - compute next multicast send time */ - if( radv_info->initial_adverts_sent > 0) - { - radv_info->initial_adverts_sent--; - if(rfn > radv_info-> initial_adverts_interval) - rfn = radv_info-> initial_adverts_interval; - - /* check to see if we are ceasing to send */ - if( radv_info->initial_adverts_sent == 0) - if(radv_info->cease_radv) - radv_info->send_radv = 0; - } - - radv_info->next_multicast_time = rfn + now; - radv_info->last_multicast_time = now; - - /* send advert now - build a "solicted" router advert with unspecified source address */ - n_allocated = vlib_buffer_alloc_from_free_list(vm, - &bo0, - n_to_alloc, - VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX); - - if (PREDICT_FALSE(n_allocated == 0)) - { - clib_warning ("buffer allocation failure"); - continue; - } - b0 = vlib_get_buffer (vm, bo0); - b0->current_length = sizeof( icmp6_router_solicitation_header_t); - b0->error = ICMP6_ERROR_NONE; - vnet_buffer (b0)->sw_if_index[VLIB_RX] = radv_info->sw_if_index; - - h0 = vlib_buffer_get_current (b0); - - memset (h0, 0, sizeof (icmp6_router_solicitation_header_t)); - - h0->ip.ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 (0x6 << 28); - h0->ip.payload_length = clib_host_to_net_u16 (sizeof (icmp6_router_solicitation_header_t) - - STRUCT_OFFSET_OF (icmp6_router_solicitation_header_t, neighbor)); - h0->ip.protocol = IP_PROTOCOL_ICMP6; - h0->ip.hop_limit = 255; - - /* set src/dst address as "unspecified" this marks this packet as internally generated rather than recieved */ - h0->ip.src_address.as_u64[0] = 0; - h0->ip.src_address.as_u64[1] = 0; - - h0->ip.dst_address.as_u64[0] = 0; - h0->ip.dst_address.as_u64[1] = 0; - - h0->neighbor.icmp.type = ICMP6_router_solicitation; - - if (PREDICT_FALSE(f == 0)) - { - f = vlib_get_frame_to_node (vm, ip6_icmp_router_solicitation_node.index); - to_next = vlib_frame_vector_args (f); - n_left_to_next = VLIB_FRAME_SIZE; - n_this_frame = 0; - } - - n_this_frame++; - n_left_to_next--; - to_next[0] = bo0; - to_next += 1; - - if (PREDICT_FALSE(n_left_to_next == 0)) - { - f->n_vectors = n_this_frame; - vlib_put_frame_to_node (vm, ip6_icmp_router_solicitation_node.index, f); - f = 0; - } - } - })); + radv_info->next_multicast_time = rfn + now; + radv_info->last_multicast_time = now; + + /* send advert now - build a "solicted" router advert with unspecified source address */ + n_allocated = vlib_buffer_alloc_from_free_list + (vm, &bo0, n_to_alloc, VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX); + + if (PREDICT_FALSE(n_allocated == 0)) + { + clib_warning ("buffer allocation failure"); + continue; + } + b0 = vlib_get_buffer (vm, bo0); + b0->current_length = sizeof( icmp6_router_solicitation_header_t); + b0->error = ICMP6_ERROR_NONE; + vnet_buffer (b0)->sw_if_index[VLIB_RX] = radv_info->sw_if_index; + + h0 = vlib_buffer_get_current (b0); + + memset (h0, 0, sizeof (icmp6_router_solicitation_header_t)); + + h0->ip.ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 (0x6 << 28); + h0->ip.payload_length = clib_host_to_net_u16 (sizeof (icmp6_router_solicitation_header_t) + - STRUCT_OFFSET_OF (icmp6_router_solicitation_header_t, neighbor)); + h0->ip.protocol = IP_PROTOCOL_ICMP6; + h0->ip.hop_limit = 255; + + /* set src/dst address as "unspecified" this marks this packet as internally generated rather than recieved */ + h0->ip.src_address.as_u64[0] = 0; + h0->ip.src_address.as_u64[1] = 0; + + h0->ip.dst_address.as_u64[0] = 0; + h0->ip.dst_address.as_u64[1] = 0; + + h0->neighbor.icmp.type = ICMP6_router_solicitation; + + if (PREDICT_FALSE(f == 0)) + { + f = vlib_get_frame_to_node (vm, ip6_icmp_router_solicitation_node.index); + to_next = vlib_frame_vector_args (f); + n_left_to_next = VLIB_FRAME_SIZE; + n_this_frame = 0; + } + + n_this_frame++; + n_left_to_next--; + to_next[0] = bo0; + to_next += 1; + + if (PREDICT_FALSE(n_left_to_next == 0)) + { + f->n_vectors = n_this_frame; + vlib_put_frame_to_node (vm, ip6_icmp_router_solicitation_node.index, f); + f = 0; + } + } + })); + /* *INDENT-ON* */ if (f) { - ASSERT(n_this_frame); + ASSERT (n_this_frame); f->n_vectors = n_this_frame; vlib_put_frame_to_node (vm, ip6_icmp_router_solicitation_node.index, f); } - return 0; + return 0; } static uword @@ -2302,36 +2455,37 @@ ip6_icmp_neighbor_discovery_event_process (vlib_main_t * vm, vlib_frame_t * frame) { uword event_type; - ip6_icmp_neighbor_discovery_event_data_t * event_data; + ip6_icmp_neighbor_discovery_event_data_t *event_data; /* init code here */ - + while (1) { - vlib_process_wait_for_event_or_clock (vm, 1. /* seconds */); + vlib_process_wait_for_event_or_clock (vm, 1. /* seconds */ ); - event_data = vlib_process_get_event_data (vm, &event_type); + event_data = vlib_process_get_event_data (vm, &event_type); - if(!event_data) + if (!event_data) { /* No events found: timer expired. */ /* process interface list and send RAs as appropriate, update timer info */ - ip6_neighbor_process_timer_event (vm, node, frame); + ip6_neighbor_process_timer_event (vm, node, frame); } else { - switch (event_type) { + switch (event_type) + { + + case ICMP6_ND_EVENT_INIT: + break; + + case ~0: + break; + + default: + ASSERT (0); + } - case ICMP6_ND_EVENT_INIT: - break; - - case ~0: - break; - - default: - ASSERT (0); - } - if (event_data) _vec_len (event_data) = 0; } @@ -2339,7 +2493,9 @@ ip6_icmp_neighbor_discovery_event_process (vlib_main_t * vm, return frame->n_vectors; } -VLIB_REGISTER_NODE (ip6_icmp_router_advertisement_node,static) = { +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (ip6_icmp_router_advertisement_node,static) = +{ .function = icmp6_router_advertisement, .name = "icmp6-router-advertisement", @@ -2352,6 +2508,7 @@ VLIB_REGISTER_NODE (ip6_icmp_router_advertisement_node,static) = { [0] = "error-drop", }, }; +/* *INDENT-ON* */ vlib_node_registration_t ip6_icmp_neighbor_discovery_event_node = { @@ -2362,17 +2519,26 @@ vlib_node_registration_t ip6_icmp_neighbor_discovery_event_node = { static uword icmp6_neighbor_solicitation (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ return icmp6_neighbor_solicitation_or_advertisement (vm, node, frame, /* is_solicitation */ 1); } + vlib_node_runtime_t * node, vlib_frame_t * frame) +{ + return icmp6_neighbor_solicitation_or_advertisement (vm, node, frame, + /* is_solicitation */ + 1); +} static uword icmp6_neighbor_advertisement (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) -{ return icmp6_neighbor_solicitation_or_advertisement (vm, node, frame, /* is_solicitation */ 0); } +{ + return icmp6_neighbor_solicitation_or_advertisement (vm, node, frame, + /* is_solicitation */ + 0); +} -VLIB_REGISTER_NODE (ip6_icmp_neighbor_solicitation_node,static) = { +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (ip6_icmp_neighbor_solicitation_node,static) = +{ .function = icmp6_neighbor_solicitation, .name = "icmp6-neighbor-solicitation", @@ -2386,8 +2552,11 @@ VLIB_REGISTER_NODE (ip6_icmp_neighbor_solicitation_node,static) = { [ICMP6_NEIGHBOR_SOLICITATION_NEXT_REPLY] = "interface-output", }, }; +/* *INDENT-ON* */ -VLIB_REGISTER_NODE (ip6_icmp_neighbor_advertisement_node,static) = { +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (ip6_icmp_neighbor_advertisement_node,static) = +{ .function = icmp6_neighbor_advertisement, .name = "icmp6-neighbor-advertisement", @@ -2400,277 +2569,307 @@ VLIB_REGISTER_NODE (ip6_icmp_neighbor_advertisement_node,static) = { [0] = "error-drop", }, }; +/* *INDENT-ON* */ -/* API support functions */ +/* API support functions */ int -ip6_neighbor_ra_config(vlib_main_t * vm, u32 sw_if_index, - u8 suppress, u8 managed, u8 other, - u8 ll_option, u8 send_unicast, u8 cease, - u8 use_lifetime, u32 lifetime, - u32 initial_count, u32 initial_interval, - u32 max_interval, u32 min_interval, - u8 is_no) -{ - ip6_neighbor_main_t * nm = &ip6_neighbor_main; - int error; +ip6_neighbor_ra_config (vlib_main_t * vm, u32 sw_if_index, + u8 suppress, u8 managed, u8 other, + u8 ll_option, u8 send_unicast, u8 cease, + u8 use_lifetime, u32 lifetime, + u32 initial_count, u32 initial_interval, + u32 max_interval, u32 min_interval, u8 is_no) +{ + ip6_neighbor_main_t *nm = &ip6_neighbor_main; + int error; u32 ri; /* look up the radv_t information for this interface */ - vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, ~0); + vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, + ~0); ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index]; - error = (ri != ~0) ? 0 : VNET_API_ERROR_INVALID_SW_IF_INDEX; + error = (ri != ~0) ? 0 : VNET_API_ERROR_INVALID_SW_IF_INDEX; - if(!error) + if (!error) { - ip6_radv_t * radv_info; - radv_info = pool_elt_at_index (nm->if_radv_pool, ri); - - if((max_interval != 0) && (min_interval ==0)) - min_interval = .75 * max_interval; - - max_interval = (max_interval != 0) ? ( (is_no) ? DEF_MAX_RADV_INTERVAL : max_interval) : radv_info->max_radv_interval; - min_interval = (min_interval != 0) ? ( (is_no) ? DEF_MIN_RADV_INTERVAL : min_interval) : radv_info->min_radv_interval; - lifetime = (use_lifetime != 0) ? ( (is_no) ? DEF_DEF_RTR_LIFETIME : lifetime) : radv_info->adv_router_lifetime_in_sec; - - if(lifetime) + ip6_radv_t *radv_info; + radv_info = pool_elt_at_index (nm->if_radv_pool, ri); + + if ((max_interval != 0) && (min_interval == 0)) + min_interval = .75 * max_interval; + + max_interval = + (max_interval != + 0) ? ((is_no) ? DEF_MAX_RADV_INTERVAL : max_interval) : + radv_info->max_radv_interval; + min_interval = + (min_interval != + 0) ? ((is_no) ? DEF_MIN_RADV_INTERVAL : min_interval) : + radv_info->min_radv_interval; + lifetime = + (use_lifetime != + 0) ? ((is_no) ? DEF_DEF_RTR_LIFETIME : lifetime) : + radv_info->adv_router_lifetime_in_sec; + + if (lifetime) { - if(lifetime > MAX_DEF_RTR_LIFETIME) + if (lifetime > MAX_DEF_RTR_LIFETIME) lifetime = MAX_DEF_RTR_LIFETIME; - - if(lifetime <= max_interval) - return VNET_API_ERROR_INVALID_VALUE; + + if (lifetime <= max_interval) + return VNET_API_ERROR_INVALID_VALUE; } - - if(min_interval != 0) + + if (min_interval != 0) { - if((min_interval > .75 * max_interval) || - (min_interval < 3)) - return VNET_API_ERROR_INVALID_VALUE; + if ((min_interval > .75 * max_interval) || (min_interval < 3)) + return VNET_API_ERROR_INVALID_VALUE; } - if((initial_count > MAX_INITIAL_RTR_ADVERTISEMENTS) || - (initial_interval > MAX_INITIAL_RTR_ADVERT_INTERVAL)) - return VNET_API_ERROR_INVALID_VALUE; - - /* - if "flag" is set and is_no is true then restore default value else set value corresponding to "flag" - if "flag" is clear don't change corresponding value - */ - radv_info->send_radv = (suppress != 0) ? ( (is_no != 0) ? 1 : 0 ) : radv_info->send_radv; - radv_info->adv_managed_flag = ( managed != 0) ? ( (is_no) ? 0 : 1) : radv_info->adv_managed_flag; - radv_info->adv_other_flag = (other != 0) ? ( (is_no) ? 0: 1) : radv_info->adv_other_flag; - radv_info->adv_link_layer_address = ( ll_option != 0) ? ( (is_no) ? 1 : 0) : radv_info->adv_link_layer_address; - radv_info->send_unicast = (send_unicast != 0) ? ( (is_no) ? 0 : 1) : radv_info->send_unicast; - radv_info->cease_radv = ( cease != 0) ? ( (is_no) ? 0 : 1) : radv_info->cease_radv; - - radv_info->min_radv_interval = min_interval; + if ((initial_count > MAX_INITIAL_RTR_ADVERTISEMENTS) || + (initial_interval > MAX_INITIAL_RTR_ADVERT_INTERVAL)) + return VNET_API_ERROR_INVALID_VALUE; + + /* + if "flag" is set and is_no is true then restore default value else set value corresponding to "flag" + if "flag" is clear don't change corresponding value + */ + radv_info->send_radv = + (suppress != 0) ? ((is_no != 0) ? 1 : 0) : radv_info->send_radv; + radv_info->adv_managed_flag = + (managed != 0) ? ((is_no) ? 0 : 1) : radv_info->adv_managed_flag; + radv_info->adv_other_flag = + (other != 0) ? ((is_no) ? 0 : 1) : radv_info->adv_other_flag; + radv_info->adv_link_layer_address = + (ll_option != + 0) ? ((is_no) ? 1 : 0) : radv_info->adv_link_layer_address; + radv_info->send_unicast = + (send_unicast != 0) ? ((is_no) ? 0 : 1) : radv_info->send_unicast; + radv_info->cease_radv = + (cease != 0) ? ((is_no) ? 0 : 1) : radv_info->cease_radv; + + radv_info->min_radv_interval = min_interval; radv_info->max_radv_interval = max_interval; radv_info->adv_router_lifetime_in_sec = lifetime; - radv_info->initial_adverts_count = - (initial_count != 0) ? ( (is_no) ? MAX_INITIAL_RTR_ADVERTISEMENTS : initial_count) : radv_info->initial_adverts_count ; - radv_info->initial_adverts_interval = - (initial_interval != 0) ? ( (is_no) ? MAX_INITIAL_RTR_ADVERT_INTERVAL : initial_interval) : radv_info->initial_adverts_interval; + radv_info->initial_adverts_count = + (initial_count != + 0) ? ((is_no) ? MAX_INITIAL_RTR_ADVERTISEMENTS : initial_count) : + radv_info->initial_adverts_count; + radv_info->initial_adverts_interval = + (initial_interval != + 0) ? ((is_no) ? MAX_INITIAL_RTR_ADVERT_INTERVAL : initial_interval) : + radv_info->initial_adverts_interval; /* restart */ - if((cease != 0) && (is_no)) - radv_info-> send_radv = 1; + if ((cease != 0) && (is_no)) + radv_info->send_radv = 1; - radv_info->initial_adverts_sent = radv_info->initial_adverts_count -1; - radv_info->next_multicast_time = vlib_time_now (vm); + radv_info->initial_adverts_sent = radv_info->initial_adverts_count - 1; + radv_info->next_multicast_time = vlib_time_now (vm); radv_info->last_multicast_time = vlib_time_now (vm); - radv_info->last_radv_time = 0; + radv_info->last_radv_time = 0; } - return(error); + return (error); } int -ip6_neighbor_ra_prefix(vlib_main_t * vm, u32 sw_if_index, - ip6_address_t *prefix_addr, u8 prefix_len, - u8 use_default, u32 val_lifetime, u32 pref_lifetime, - u8 no_advertise, u8 off_link, u8 no_autoconfig, u8 no_onlink, - u8 is_no) +ip6_neighbor_ra_prefix (vlib_main_t * vm, u32 sw_if_index, + ip6_address_t * prefix_addr, u8 prefix_len, + u8 use_default, u32 val_lifetime, u32 pref_lifetime, + u8 no_advertise, u8 off_link, u8 no_autoconfig, + u8 no_onlink, u8 is_no) { - ip6_neighbor_main_t * nm = &ip6_neighbor_main; + ip6_neighbor_main_t *nm = &ip6_neighbor_main; int error; - + u32 ri; /* look up the radv_t information for this interface */ - vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, ~0); - + vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, + ~0); + ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index]; error = (ri != ~0) ? 0 : VNET_API_ERROR_INVALID_SW_IF_INDEX; - - if(!error) + + if (!error) { f64 now = vlib_time_now (vm); - ip6_radv_t * radv_info; - radv_info = pool_elt_at_index (nm->if_radv_pool, ri); + ip6_radv_t *radv_info; + radv_info = pool_elt_at_index (nm->if_radv_pool, ri); /* prefix info add, delete or update */ - ip6_radv_prefix_t * prefix; - + ip6_radv_prefix_t *prefix; + /* lookup prefix info for this address on this interface */ - uword * p = mhash_get (&radv_info->address_to_prefix_index, prefix_addr); - + uword *p = mhash_get (&radv_info->address_to_prefix_index, prefix_addr); + prefix = p ? pool_elt_at_index (radv_info->adv_prefixes_pool, p[0]) : 0; - if(is_no) + if (is_no) { /* delete */ - if(!prefix) - return VNET_API_ERROR_INVALID_VALUE; /* invalid prefix */ - - if(prefix->prefix_len != prefix_len) + if (!prefix) + return VNET_API_ERROR_INVALID_VALUE; /* invalid prefix */ + + if (prefix->prefix_len != prefix_len) return VNET_API_ERROR_INVALID_VALUE_2; - /* FIXME - Should the DP do this or the CP ?*/ + /* FIXME - Should the DP do this or the CP ? */ /* do specific delete processing here before returning */ /* try to remove from routing table */ - mhash_unset (&radv_info->address_to_prefix_index, prefix_addr,/* old_value */ 0); + mhash_unset (&radv_info->address_to_prefix_index, prefix_addr, + /* old_value */ 0); pool_put (radv_info->adv_prefixes_pool, prefix); - radv_info->initial_adverts_sent = radv_info->initial_adverts_count -1; - radv_info->next_multicast_time = vlib_time_now (vm); + radv_info->initial_adverts_sent = + radv_info->initial_adverts_count - 1; + radv_info->next_multicast_time = vlib_time_now (vm); radv_info->last_multicast_time = vlib_time_now (vm); - radv_info->last_radv_time = 0; - return(error); + radv_info->last_radv_time = 0; + return (error); } /* adding or changing */ - if(!prefix) + if (!prefix) { /* add */ u32 pi; pool_get (radv_info->adv_prefixes_pool, prefix); pi = prefix - radv_info->adv_prefixes_pool; - mhash_set (&radv_info->address_to_prefix_index, prefix_addr, pi, /* old_value */ 0); - - memset(prefix, 0x0, sizeof(ip6_radv_prefix_t)); - + mhash_set (&radv_info->address_to_prefix_index, prefix_addr, pi, + /* old_value */ 0); + + memset (prefix, 0x0, sizeof (ip6_radv_prefix_t)); + prefix->prefix_len = prefix_len; - clib_memcpy(&prefix->prefix, prefix_addr, sizeof(ip6_address_t)); - + clib_memcpy (&prefix->prefix, prefix_addr, sizeof (ip6_address_t)); + /* initialize default values */ - prefix->adv_on_link_flag = 1; /* L bit set */ - prefix->adv_autonomous_flag = 1; /* A bit set */ - prefix->adv_valid_lifetime_in_secs = DEF_ADV_VALID_LIFETIME; + prefix->adv_on_link_flag = 1; /* L bit set */ + prefix->adv_autonomous_flag = 1; /* A bit set */ + prefix->adv_valid_lifetime_in_secs = DEF_ADV_VALID_LIFETIME; prefix->adv_pref_lifetime_in_secs = DEF_ADV_PREF_LIFETIME; prefix->enabled = 1; prefix->decrement_lifetime_flag = 1; prefix->deprecated_prefix_flag = 1; - if(off_link == 0) + if (off_link == 0) { - /* FIXME - Should the DP do this or the CP ?*/ + /* FIXME - Should the DP do this or the CP ? */ /* insert prefix into routing table as a connected prefix */ } - if(use_default) + if (use_default) goto restart; } else { - - if(prefix->prefix_len != prefix_len) + + if (prefix->prefix_len != prefix_len) return VNET_API_ERROR_INVALID_VALUE_2; - if(off_link != 0) + if (off_link != 0) { - /* FIXME - Should the DP do this or the CP ?*/ + /* FIXME - Should the DP do this or the CP ? */ /* remove from routing table if already there */ - } + } } - if((val_lifetime == ~0) || (pref_lifetime == ~0)) + if ((val_lifetime == ~0) || (pref_lifetime == ~0)) { - prefix->adv_valid_lifetime_in_secs = ~0; + prefix->adv_valid_lifetime_in_secs = ~0; prefix->adv_pref_lifetime_in_secs = ~0; prefix->decrement_lifetime_flag = 0; } else { - prefix->adv_valid_lifetime_in_secs = val_lifetime;; - prefix->adv_pref_lifetime_in_secs = pref_lifetime; + prefix->adv_valid_lifetime_in_secs = val_lifetime;; + prefix->adv_pref_lifetime_in_secs = pref_lifetime; } - + /* copy remaining */ prefix->enabled = !(no_advertise != 0); prefix->adv_on_link_flag = !((off_link != 0) || (no_onlink != 0)); prefix->adv_autonomous_flag = !(no_autoconfig != 0); - restart: + restart: /* restart */ /* fill in the expiration times */ - prefix->valid_lifetime_expires = now + prefix->adv_valid_lifetime_in_secs; + prefix->valid_lifetime_expires = + now + prefix->adv_valid_lifetime_in_secs; prefix->pref_lifetime_expires = now + prefix->adv_pref_lifetime_in_secs; - - radv_info->initial_adverts_sent = radv_info->initial_adverts_count -1; - radv_info->next_multicast_time = vlib_time_now (vm); + + radv_info->initial_adverts_sent = radv_info->initial_adverts_count - 1; + radv_info->next_multicast_time = vlib_time_now (vm); radv_info->last_multicast_time = vlib_time_now (vm); - radv_info->last_radv_time = 0; + radv_info->last_radv_time = 0; } - return(error); + return (error); } clib_error_t * -ip6_neighbor_cmd(vlib_main_t * vm, unformat_input_t * main_input, vlib_cli_command_t * cmd) +ip6_neighbor_cmd (vlib_main_t * vm, unformat_input_t * main_input, + vlib_cli_command_t * cmd) { - vnet_main_t * vnm = vnet_get_main(); - ip6_neighbor_main_t * nm = &ip6_neighbor_main; - clib_error_t * error = 0; + vnet_main_t *vnm = vnet_get_main (); + ip6_neighbor_main_t *nm = &ip6_neighbor_main; + clib_error_t *error = 0; u8 is_no = 0; - u8 suppress = 0, managed = 0, other = 0; - u8 suppress_ll_option = 0, send_unicast = 0, cease= 0; + u8 suppress = 0, managed = 0, other = 0; + u8 suppress_ll_option = 0, send_unicast = 0, cease = 0; u8 use_lifetime = 0; - u32 sw_if_index, ra_lifetime = 0, ra_initial_count = 0, ra_initial_interval = 0; - u32 ra_max_interval = 0 , ra_min_interval = 0; + u32 sw_if_index, ra_lifetime = 0, ra_initial_count = + 0, ra_initial_interval = 0; + u32 ra_max_interval = 0, ra_min_interval = 0; - unformat_input_t _line_input, * line_input = &_line_input; - vnet_sw_interface_t * sw_if0; + unformat_input_t _line_input, *line_input = &_line_input; + vnet_sw_interface_t *sw_if0; int add_radv_info = 1; - __attribute__((unused)) ip6_radv_t * radv_info = 0; + __attribute__ ((unused)) ip6_radv_t *radv_info = 0; ip6_address_t ip6_addr; u32 addr_len; - + /* Get a line of input. */ - if (! unformat_user (main_input, unformat_line_input, line_input)) + if (!unformat_user (main_input, unformat_line_input, line_input)) return 0; /* get basic radv info for this interface */ - if(unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + if (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { - if (unformat_user (line_input, + if (unformat_user (line_input, unformat_vnet_sw_interface, vnm, &sw_if_index)) { u32 ri; - ethernet_interface_t * eth_if0 = 0; - + ethernet_interface_t *eth_if0 = 0; + sw_if0 = vnet_get_sup_sw_interface (vnm, sw_if_index); - if(sw_if0->type == VNET_SW_INTERFACE_TYPE_HARDWARE) - eth_if0 = ethernet_get_interface (ðernet_main, sw_if0->hw_if_index); - - if(!eth_if0) + if (sw_if0->type == VNET_SW_INTERFACE_TYPE_HARDWARE) + eth_if0 = + ethernet_get_interface (ðernet_main, sw_if0->hw_if_index); + + if (!eth_if0) { - error = clib_error_return (0, "Interface must be of ethernet type"); + error = + clib_error_return (0, "Interface must be of ethernet type"); goto done; } - + /* look up the radv_t information for this interface */ - vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, ~0); - + vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, + sw_if_index, ~0); + ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index]; - - if(ri != ~0) + + if (ri != ~0) { - radv_info = pool_elt_at_index (nm->if_radv_pool, ri); + radv_info = pool_elt_at_index (nm->if_radv_pool, ri); } else { @@ -2691,10 +2890,9 @@ ip6_neighbor_cmd(vlib_main_t * vm, unformat_input_t * main_input, vlib_cli_comma while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat (line_input, "no")) - is_no = 1; - else if(unformat (line_input, "prefix %U/%d", - unformat_ip6_address, &ip6_addr, - &addr_len)) + is_no = 1; + else if (unformat (line_input, "prefix %U/%d", + unformat_ip6_address, &ip6_addr, &addr_len)) { add_radv_info = 0; break; @@ -2710,13 +2908,13 @@ ip6_neighbor_cmd(vlib_main_t * vm, unformat_input_t * main_input, vlib_cli_comma break; } else if (unformat (line_input, "ra-suppress") || - unformat (line_input, "ra-surpress")) + unformat (line_input, "ra-surpress")) { suppress = 1; break; } else if (unformat (line_input, "ra-suppress-link-layer") || - unformat (line_input, "ra-surpress-link-layer")) + unformat (line_input, "ra-surpress-link-layer")) { suppress_ll_option = 1; break; @@ -2729,70 +2927,70 @@ ip6_neighbor_cmd(vlib_main_t * vm, unformat_input_t * main_input, vlib_cli_comma else if (unformat (line_input, "ra-lifetime")) { if (!unformat (line_input, "%d", &ra_lifetime)) - return(error = unformat_parse_error (line_input)); + return (error = unformat_parse_error (line_input)); use_lifetime = 1; break; - } + } else if (unformat (line_input, "ra-initial")) { - if (!unformat (line_input, "%d %d", &ra_initial_count, &ra_initial_interval)) - return(error = unformat_parse_error (line_input)); + if (!unformat + (line_input, "%d %d", &ra_initial_count, &ra_initial_interval)) + return (error = unformat_parse_error (line_input)); break; } else if (unformat (line_input, "ra-interval")) { if (!unformat (line_input, "%d", &ra_max_interval)) - return(error = unformat_parse_error (line_input)); + return (error = unformat_parse_error (line_input)); if (!unformat (line_input, "%d", &ra_min_interval)) ra_min_interval = 0; break; } - else if(unformat (line_input, "ra-cease")) + else if (unformat (line_input, "ra-cease")) { cease = 1; break; } else - return(unformat_parse_error (line_input)); + return (unformat_parse_error (line_input)); } - if(add_radv_info) + if (add_radv_info) { - ip6_neighbor_ra_config(vm, sw_if_index, - suppress, managed, other, - suppress_ll_option, send_unicast, cease, - use_lifetime, ra_lifetime, - ra_initial_count, ra_initial_interval, - ra_max_interval, ra_min_interval, - is_no); + ip6_neighbor_ra_config (vm, sw_if_index, + suppress, managed, other, + suppress_ll_option, send_unicast, cease, + use_lifetime, ra_lifetime, + ra_initial_count, ra_initial_interval, + ra_max_interval, ra_min_interval, is_no); } else { - u32 valid_lifetime_in_secs = 0; + u32 valid_lifetime_in_secs = 0; u32 pref_lifetime_in_secs = 0; u8 use_prefix_default_values = 0; - u8 no_advertise = 0; - u8 off_link= 0; + u8 no_advertise = 0; + u8 off_link = 0; u8 no_autoconfig = 0; - u8 no_onlink= 0; + u8 no_onlink = 0; /* get the rest of the command */ - while(unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { - if(unformat (line_input, "default")) + if (unformat (line_input, "default")) { use_prefix_default_values = 1; break; } - else if(unformat (line_input, "infinite")) + else if (unformat (line_input, "infinite")) { - valid_lifetime_in_secs = ~0; + valid_lifetime_in_secs = ~0; pref_lifetime_in_secs = ~0; break; } - else if(unformat (line_input, "%d %d", &valid_lifetime_in_secs, - &pref_lifetime_in_secs)) + else if (unformat (line_input, "%d %d", &valid_lifetime_in_secs, + &pref_lifetime_in_secs)) break; else break; @@ -2803,104 +3001,103 @@ ip6_neighbor_cmd(vlib_main_t * vm, unformat_input_t * main_input, vlib_cli_comma while (!use_prefix_default_values && unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { - if(unformat (line_input, "no-advertise")) + if (unformat (line_input, "no-advertise")) no_advertise = 1; - else if(unformat (line_input, "off-link")) + else if (unformat (line_input, "off-link")) off_link = 1; - else if(unformat (line_input, "no-autoconfig")) + else if (unformat (line_input, "no-autoconfig")) no_autoconfig = 1; - else if(unformat (line_input, "no-onlink")) + else if (unformat (line_input, "no-onlink")) no_onlink = 1; else - return(unformat_parse_error (line_input)); + return (unformat_parse_error (line_input)); } - - ip6_neighbor_ra_prefix(vm, sw_if_index, - &ip6_addr, addr_len, - use_prefix_default_values, - valid_lifetime_in_secs, - pref_lifetime_in_secs, - no_advertise, - off_link, - no_autoconfig, - no_onlink, - is_no); + + ip6_neighbor_ra_prefix (vm, sw_if_index, + &ip6_addr, addr_len, + use_prefix_default_values, + valid_lifetime_in_secs, + pref_lifetime_in_secs, + no_advertise, + off_link, no_autoconfig, no_onlink, is_no); } unformat_free (line_input); - - done: + +done: return error; } static void -ip6_print_addrs(vlib_main_t * vm, - u32 *addrs) +ip6_print_addrs (vlib_main_t * vm, u32 * addrs) { - ip_lookup_main_t * lm = &ip6_main.lookup_main; + ip_lookup_main_t *lm = &ip6_main.lookup_main; u32 i; for (i = 0; i < vec_len (addrs); i++) { - ip_interface_address_t * a = pool_elt_at_index(lm->if_address_pool, addrs[i]); - ip6_address_t * address = ip_interface_address_get_address (lm, a); + ip_interface_address_t *a = + pool_elt_at_index (lm->if_address_pool, addrs[i]); + ip6_address_t *address = ip_interface_address_get_address (lm, a); vlib_cli_output (vm, "\t\t%U/%d", - format_ip6_address, address, - a->address_length); + format_ip6_address, address, a->address_length); } } static clib_error_t * show_ip6_interface_cmd (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, vlib_cli_command_t * cmd) { - vnet_main_t * vnm = vnet_get_main(); - ip6_neighbor_main_t * nm = &ip6_neighbor_main; - clib_error_t * error = 0; + vnet_main_t *vnm = vnet_get_main (); + ip6_neighbor_main_t *nm = &ip6_neighbor_main; + clib_error_t *error = 0; u32 sw_if_index; sw_if_index = ~0; - if (unformat_user (input, - unformat_vnet_sw_interface, vnm, &sw_if_index)) + if (unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index)) { u32 ri; - + /* look up the radv_t information for this interface */ - vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, ~0); - + vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, + sw_if_index, ~0); + ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index]; - - if(ri != ~0) + + if (ri != ~0) { - ip_lookup_main_t * lm = &ip6_main.lookup_main; - ip6_radv_t * radv_info; - radv_info = pool_elt_at_index (nm->if_radv_pool, ri); + ip_lookup_main_t *lm = &ip6_main.lookup_main; + ip6_radv_t *radv_info; + radv_info = pool_elt_at_index (nm->if_radv_pool, ri); - vlib_cli_output (vm, "%U is admin %s\n", format_vnet_sw_interface_name, vnm, + vlib_cli_output (vm, "%U is admin %s\n", + format_vnet_sw_interface_name, vnm, vnet_get_sw_interface (vnm, sw_if_index), - (vnet_sw_interface_is_admin_up (vnm, sw_if_index) ? "up" : "down")); - + (vnet_sw_interface_is_admin_up (vnm, sw_if_index) ? + "up" : "down")); + u32 ai; u32 *link_scope = 0, *global_scope = 0; u32 *local_scope = 0, *unknown_scope = 0; - ip_interface_address_t * a; + ip_interface_address_t *a; - vec_validate_init_empty (lm->if_address_pool_index_by_sw_if_index, sw_if_index, ~0); + vec_validate_init_empty (lm->if_address_pool_index_by_sw_if_index, + sw_if_index, ~0); ai = lm->if_address_pool_index_by_sw_if_index[sw_if_index]; - while (ai != (u32)~0) + while (ai != (u32) ~ 0) { - a = pool_elt_at_index(lm->if_address_pool, ai); - ip6_address_t * address = ip_interface_address_get_address (lm, a); + a = pool_elt_at_index (lm->if_address_pool, ai); + ip6_address_t *address = + ip_interface_address_get_address (lm, a); if (ip6_address_is_link_local_unicast (address)) vec_add1 (link_scope, ai); - else if(ip6_address_is_global_unicast (address)) + else if (ip6_address_is_global_unicast (address)) vec_add1 (global_scope, ai); - else if(ip6_address_is_local_unicast (address)) + else if (ip6_address_is_local_unicast (address)) vec_add1 (local_scope, ai); else vec_add1 (unknown_scope, ai); @@ -2908,48 +3105,55 @@ show_ip6_interface_cmd (vlib_main_t * vm, ai = a->next_this_sw_interface; } - if (vec_len (link_scope)) - { - vlib_cli_output (vm, "\tLink-local address(es):\n"); - ip6_print_addrs (vm, link_scope); - vec_free (link_scope); - } - - if (vec_len (local_scope)) - { - vlib_cli_output (vm, "\tLocal unicast address(es):\n"); - ip6_print_addrs (vm, local_scope); - vec_free (local_scope); - } - - if (vec_len (global_scope)) - { - vlib_cli_output (vm, "\tGlobal unicast address(es):\n"); - ip6_print_addrs (vm, global_scope); - vec_free (global_scope); - } - - if (vec_len (unknown_scope)) - { - vlib_cli_output (vm, "\tOther-scope address(es):\n"); - ip6_print_addrs (vm, unknown_scope); - vec_free (unknown_scope); - } + if (vec_len (link_scope)) + { + vlib_cli_output (vm, "\tLink-local address(es):\n"); + ip6_print_addrs (vm, link_scope); + vec_free (link_scope); + } + + if (vec_len (local_scope)) + { + vlib_cli_output (vm, "\tLocal unicast address(es):\n"); + ip6_print_addrs (vm, local_scope); + vec_free (local_scope); + } + + if (vec_len (global_scope)) + { + vlib_cli_output (vm, "\tGlobal unicast address(es):\n"); + ip6_print_addrs (vm, global_scope); + vec_free (global_scope); + } + + if (vec_len (unknown_scope)) + { + vlib_cli_output (vm, "\tOther-scope address(es):\n"); + ip6_print_addrs (vm, unknown_scope); + vec_free (unknown_scope); + } vlib_cli_output (vm, "\tJoined group address(es):\n"); ip6_mldp_group_t *m; - pool_foreach (m, radv_info->mldp_group_pool, ({ - vlib_cli_output (vm, "\t\t%U\n", format_ip6_address, &m->mcast_address); - })); + /* *INDENT-OFF* */ + pool_foreach (m, radv_info->mldp_group_pool, + ({ + vlib_cli_output (vm, "\t\t%U\n", format_ip6_address, + &m->mcast_address); + })); + /* *INDENT-ON* */ vlib_cli_output (vm, "\tAdvertised Prefixes:\n"); - ip6_radv_prefix_t * p; - pool_foreach (p, radv_info->adv_prefixes_pool, ({ - vlib_cli_output (vm, "\t\tprefix %U, length %d\n", - format_ip6_address, &p->prefix, p->prefix_len); - })); - - vlib_cli_output (vm, "\tMTU is %d\n", radv_info->adv_link_mtu); + ip6_radv_prefix_t *p; + /* *INDENT-OFF* */ + pool_foreach (p, radv_info->adv_prefixes_pool, + ({ + vlib_cli_output (vm, "\t\tprefix %U, length %d\n", + format_ip6_address, &p->prefix, p->prefix_len); + })); + /* *INDENT-ON* */ + + vlib_cli_output (vm, "\tMTU is %d\n", radv_info->adv_link_mtu); vlib_cli_output (vm, "\tICMP error messages are unlimited\n"); vlib_cli_output (vm, "\tICMP redirects are disabled\n"); vlib_cli_output (vm, "\tICMP unreachables are not sent\n"); @@ -2957,20 +3161,29 @@ show_ip6_interface_cmd (vlib_main_t * vm, //vlib_cli_output (vm, "\tND reachable time is %d milliseconds\n",); vlib_cli_output (vm, "\tND advertised reachable time is %d\n", radv_info->adv_neighbor_reachable_time_in_msec); - vlib_cli_output (vm, "\tND advertised retransmit interval is %d (msec)\n", - radv_info->adv_time_in_msec_between_retransmitted_neighbor_solicitations); + vlib_cli_output (vm, + "\tND advertised retransmit interval is %d (msec)\n", + radv_info-> + adv_time_in_msec_between_retransmitted_neighbor_solicitations); u32 ra_interval = radv_info->max_radv_interval; u32 ra_interval_min = radv_info->min_radv_interval; - vlib_cli_output (vm, "\tND router advertisements are sent every %d seconds (min interval is %d)\n", + vlib_cli_output (vm, + "\tND router advertisements are sent every %d seconds (min interval is %d)\n", ra_interval, ra_interval_min); - vlib_cli_output (vm, "\tND router advertisements live for %d seconds\n", + vlib_cli_output (vm, + "\tND router advertisements live for %d seconds\n", radv_info->adv_router_lifetime_in_sec); - vlib_cli_output (vm, "\tHosts %s stateless autoconfig for addresses\n", - (radv_info->adv_managed_flag) ? "use" :" don't use"); - vlib_cli_output (vm, "\tND router advertisements sent %d\n", radv_info->n_advertisements_sent); - vlib_cli_output (vm, "\tND router solicitations received %d\n", radv_info->n_solicitations_rcvd); - vlib_cli_output (vm, "\tND router solicitations dropped %d\n", radv_info->n_solicitations_dropped); + vlib_cli_output (vm, + "\tHosts %s stateless autoconfig for addresses\n", + (radv_info->adv_managed_flag) ? "use" : + " don't use"); + vlib_cli_output (vm, "\tND router advertisements sent %d\n", + radv_info->n_advertisements_sent); + vlib_cli_output (vm, "\tND router solicitations received %d\n", + radv_info->n_solicitations_rcvd); + vlib_cli_output (vm, "\tND router solicitations dropped %d\n", + radv_info->n_solicitations_dropped); } else { @@ -3019,7 +3232,8 @@ show_ip6_interface_cmd (vlib_main_t * vm, * @cliexend ?*/ /* *INDENT-OFF* */ -VLIB_CLI_COMMAND (show_ip6_interface_command, static) = { +VLIB_CLI_COMMAND (show_ip6_interface_command, static) = +{ .path = "show ip6 interface", .function = show_ip6_interface_cmd, .short_help = "show ip6 interface <interface>", @@ -3027,133 +3241,141 @@ VLIB_CLI_COMMAND (show_ip6_interface_command, static) = { /* *INDENT-ON* */ clib_error_t * -disable_ip6_interface(vlib_main_t * vm, - u32 sw_if_index) +disable_ip6_interface (vlib_main_t * vm, u32 sw_if_index) { - clib_error_t * error = 0; - ip6_neighbor_main_t * nm = &ip6_neighbor_main; + clib_error_t *error = 0; + ip6_neighbor_main_t *nm = &ip6_neighbor_main; u32 ri; /* look up the radv_t information for this interface */ - vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, ~0); + vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, + ~0); ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index]; - + /* if not created - do nothing */ - if(ri != ~0) + if (ri != ~0) { - vnet_main_t * vnm = vnet_get_main(); - ip6_radv_t * radv_info; - - radv_info = pool_elt_at_index (nm->if_radv_pool, ri); + vnet_main_t *vnm = vnet_get_main (); + ip6_radv_t *radv_info; + + radv_info = pool_elt_at_index (nm->if_radv_pool, ri); /* check radv_info ref count for other ip6 addresses on this interface */ - if(radv_info->ref_count == 0 ) + if (radv_info->ref_count == 0) { /* essentially "disables" ipv6 on this interface */ error = ip6_add_del_interface_address (vm, sw_if_index, - &radv_info->link_local_address, - radv_info->link_local_prefix_len, - 1 /* is_del */); - - ip6_neighbor_sw_interface_add_del (vnm, sw_if_index, 0/* is_add */); + &radv_info-> + link_local_address, + radv_info-> + link_local_prefix_len, + 1 /* is_del */ ); + + ip6_neighbor_sw_interface_add_del (vnm, sw_if_index, + 0 /* is_add */ ); } } return error; } int -ip6_interface_enabled(vlib_main_t * vm, - u32 sw_if_index) +ip6_interface_enabled (vlib_main_t * vm, u32 sw_if_index) { - ip6_neighbor_main_t * nm = &ip6_neighbor_main; - u32 ri = ~0; + ip6_neighbor_main_t *nm = &ip6_neighbor_main; + u32 ri = ~0; - /* look up the radv_t information for this interface */ - vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, ~0); + /* look up the radv_t information for this interface */ + vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, + ~0); - ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index]; + ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index]; - return ri != ~0; + return ri != ~0; } -clib_error_t * -enable_ip6_interface(vlib_main_t * vm, - u32 sw_if_index) +clib_error_t * +enable_ip6_interface (vlib_main_t * vm, u32 sw_if_index) { - clib_error_t * error = 0; - ip6_neighbor_main_t * nm = &ip6_neighbor_main; + clib_error_t *error = 0; + ip6_neighbor_main_t *nm = &ip6_neighbor_main; u32 ri; int is_add = 1; /* look up the radv_t information for this interface */ - vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, ~0); - + vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, + ~0); + ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index]; - + /* if not created yet */ - if(ri == ~0) + if (ri == ~0) { - vnet_main_t * vnm = vnet_get_main(); - vnet_sw_interface_t * sw_if0; - + vnet_main_t *vnm = vnet_get_main (); + vnet_sw_interface_t *sw_if0; + sw_if0 = vnet_get_sup_sw_interface (vnm, sw_if_index); - if(sw_if0->type == VNET_SW_INTERFACE_TYPE_HARDWARE) + if (sw_if0->type == VNET_SW_INTERFACE_TYPE_HARDWARE) { - ethernet_interface_t * eth_if0; + ethernet_interface_t *eth_if0; - eth_if0 = ethernet_get_interface (ðernet_main, sw_if0->hw_if_index); - if(eth_if0) + eth_if0 = + ethernet_get_interface (ðernet_main, sw_if0->hw_if_index); + if (eth_if0) { /* create radv_info. for this interface. This holds all the info needed for router adverts */ - ri = ip6_neighbor_sw_interface_add_del (vnm, sw_if_index, is_add); + ri = + ip6_neighbor_sw_interface_add_del (vnm, sw_if_index, is_add); - if(ri != ~0) + if (ri != ~0) { - ip6_radv_t * radv_info; + ip6_radv_t *radv_info; ip6_address_t link_local_address; - radv_info = pool_elt_at_index (nm->if_radv_pool, ri); + radv_info = pool_elt_at_index (nm->if_radv_pool, ri); - ip6_link_local_address_from_ethernet_mac_address (&link_local_address, - eth_if0->address); + ip6_link_local_address_from_ethernet_mac_address + (&link_local_address, eth_if0->address); sw_if0 = vnet_get_sw_interface (vnm, sw_if_index); - if(sw_if0->type == VNET_SW_INTERFACE_TYPE_SUB) + if (sw_if0->type == VNET_SW_INTERFACE_TYPE_SUB) { /* make up an interface id */ md5_context_t m; u8 digest[16]; - + link_local_address.as_u64[0] = radv_info->randomizer; - + md5_init (&m); md5_add (&m, &link_local_address, 16); - md5_finish (&m, digest); - - clib_memcpy(&link_local_address, digest, 16); - + md5_finish (&m, digest); + + clib_memcpy (&link_local_address, digest, 16); + radv_info->randomizer = link_local_address.as_u64[0]; - - link_local_address.as_u64[0] = clib_host_to_net_u64 (0xFE80000000000000ULL); + + link_local_address.as_u64[0] = + clib_host_to_net_u64 (0xFE80000000000000ULL); /* clear u bit */ link_local_address.as_u8[8] &= 0xfd; } - + /* essentially "enables" ipv6 on this interface */ error = ip6_add_del_interface_address (vm, sw_if_index, &link_local_address, - 128 /* address width */, - 0 /* is_del */); - - if(error) - ip6_neighbor_sw_interface_add_del (vnm, sw_if_index, !is_add); + 128 + /* address width */ , + 0 /* is_del */ ); + + if (error) + ip6_neighbor_sw_interface_add_del (vnm, sw_if_index, + !is_add); else { - radv_info->link_local_address = link_local_address; - radv_info->link_local_prefix_len = 64; + radv_info->link_local_address = link_local_address; + radv_info->link_local_prefix_len = 64; } } - } + } } } return error; @@ -3161,26 +3383,24 @@ enable_ip6_interface(vlib_main_t * vm, static clib_error_t * enable_ip6_interface_cmd (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, vlib_cli_command_t * cmd) { - vnet_main_t * vnm = vnet_get_main(); - clib_error_t * error = 0; + vnet_main_t *vnm = vnet_get_main (); + clib_error_t *error = 0; u32 sw_if_index; sw_if_index = ~0; - if (unformat_user (input, - unformat_vnet_sw_interface, vnm, &sw_if_index)) + if (unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index)) { - enable_ip6_interface(vm, sw_if_index); + enable_ip6_interface (vm, sw_if_index); + } + else + { + error = clib_error_return (0, "unknown interface\n'", + format_unformat_error, input); + } - else - { - error = clib_error_return (0, "unknown interface\n'", - format_unformat_error, input); - - } return error; } @@ -3192,7 +3412,8 @@ enable_ip6_interface_cmd (vlib_main_t * vm, * @cliexcmd{enable ip6 interface GigabitEthernet2/0/0} ?*/ /* *INDENT-OFF* */ -VLIB_CLI_COMMAND (enable_ip6_interface_command, static) = { +VLIB_CLI_COMMAND (enable_ip6_interface_command, static) = +{ .path = "enable ip6 interface", .function = enable_ip6_interface_cmd, .short_help = "enable ip6 interface <interface>", @@ -3201,26 +3422,24 @@ VLIB_CLI_COMMAND (enable_ip6_interface_command, static) = { static clib_error_t * disable_ip6_interface_cmd (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, vlib_cli_command_t * cmd) { - vnet_main_t * vnm = vnet_get_main(); - clib_error_t * error = 0; + vnet_main_t *vnm = vnet_get_main (); + clib_error_t *error = 0; u32 sw_if_index; sw_if_index = ~0; - if (unformat_user (input, - unformat_vnet_sw_interface, vnm, &sw_if_index)) + if (unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index)) { - error = disable_ip6_interface(vm, sw_if_index); + error = disable_ip6_interface (vm, sw_if_index); + } + else + { + error = clib_error_return (0, "unknown interface\n'", + format_unformat_error, input); + } - else - { - error = clib_error_return (0, "unknown interface\n'", - format_unformat_error, input); - - } return error; } @@ -3232,7 +3451,8 @@ disable_ip6_interface_cmd (vlib_main_t * vm, * @cliexcmd{disable ip6 interface GigabitEthernet2/0/0} ?*/ /* *INDENT-OFF* */ -VLIB_CLI_COMMAND (disable_ip6_interface_command, static) = { +VLIB_CLI_COMMAND (disable_ip6_interface_command, static) = +{ .path = "disable ip6 interface", .function = disable_ip6_interface_cmd, .short_help = "disable ip6 interface <interface>", @@ -3355,7 +3575,8 @@ VLIB_CLI_COMMAND (disable_ip6_interface_command, static) = { * @cliexcmd{ip6 nd GigabitEthernet2/0/0 no prefix fe80::fe:28ff:fe9c:75b3/64} ?*/ /* *INDENT-OFF* */ -VLIB_CLI_COMMAND (ip6_nd_command, static) = { +VLIB_CLI_COMMAND (ip6_nd_command, static) = +{ .path = "ip6 nd", .short_help = "ip6 nd <interface> ...", .function = ip6_neighbor_cmd, @@ -3363,53 +3584,53 @@ VLIB_CLI_COMMAND (ip6_nd_command, static) = { /* *INDENT-ON* */ clib_error_t * -set_ip6_link_local_address(vlib_main_t * vm, - u32 sw_if_index, - ip6_address_t *address, - u8 address_length) +set_ip6_link_local_address (vlib_main_t * vm, + u32 sw_if_index, + ip6_address_t * address, u8 address_length) { - clib_error_t * error = 0; - ip6_neighbor_main_t * nm = &ip6_neighbor_main; + clib_error_t *error = 0; + ip6_neighbor_main_t *nm = &ip6_neighbor_main; u32 ri; - ip6_radv_t * radv_info; - vnet_main_t * vnm = vnet_get_main(); + ip6_radv_t *radv_info; + vnet_main_t *vnm = vnet_get_main (); - if( !ip6_address_is_link_local_unicast (address)) + if (!ip6_address_is_link_local_unicast (address)) { vnm->api_errno = VNET_API_ERROR_ADDRESS_NOT_LINK_LOCAL; - return(error = clib_error_return (0, "address not link-local", - format_unformat_error)); + return (error = clib_error_return (0, "address not link-local", + format_unformat_error)); } /* call enable ipv6 */ - enable_ip6_interface(vm, sw_if_index); - + enable_ip6_interface (vm, sw_if_index); + ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index]; - - if(ri != ~0) + + if (ri != ~0) { - radv_info = pool_elt_at_index (nm->if_radv_pool, ri); + radv_info = pool_elt_at_index (nm->if_radv_pool, ri); /* save if link local address (overwrite default) */ - + /* delete the old one */ error = ip6_add_del_interface_address (vm, sw_if_index, &radv_info->link_local_address, - radv_info->link_local_prefix_len /* address width */, - 1 /* is_del */); - - if(!error) + radv_info->link_local_prefix_len + /* address width */ , + 1 /* is_del */ ); + + if (!error) { /* add the new one */ error = ip6_add_del_interface_address (vm, sw_if_index, - address , - address_length /* address width */, - 0/* is_del */); - - if(!error) + address, address_length + /* address width */ , + 0 /* is_del */ ); + + if (!error) { radv_info->link_local_address = *address; - radv_info->link_local_prefix_len = address_length; + radv_info->link_local_prefix_len = address_length; } } } @@ -3421,36 +3642,31 @@ set_ip6_link_local_address(vlib_main_t * vm, } return error; } - + clib_error_t * set_ip6_link_local_address_cmd (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { - vnet_main_t * vnm = vnet_get_main(); - clib_error_t * error = 0; + vnet_main_t *vnm = vnet_get_main (); + clib_error_t *error = 0; u32 sw_if_index; ip6_address_t ip6_addr; u32 addr_len = 0; - - if (unformat_user (input, - unformat_vnet_sw_interface, vnm, &sw_if_index)) + + if (unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index)) { /* get the rest of the command */ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { - if(unformat (input, "%U/%d", - unformat_ip6_address, &ip6_addr, - &addr_len)) + if (unformat (input, "%U/%d", + unformat_ip6_address, &ip6_addr, &addr_len)) break; else - return(unformat_parse_error (input)); + return (unformat_parse_error (input)); } } - error = set_ip6_link_local_address(vm, - sw_if_index, - &ip6_addr, - addr_len); + error = set_ip6_link_local_address (vm, sw_if_index, &ip6_addr, addr_len); return error; } @@ -3465,7 +3681,8 @@ set_ip6_link_local_address_cmd (vlib_main_t * vm, * @cliexcmd{set ip6 link-local address GigabitEthernet2/0/0 FE80::AB8/64} ?*/ /* *INDENT-OFF* */ -VLIB_CLI_COMMAND (set_ip6_link_local_address_command, static) = { +VLIB_CLI_COMMAND (set_ip6_link_local_address_command, static) = +{ .path = "set ip6 link-local address", .short_help = "set ip6 link-local address <interface> <ip6-address>/<width>", .function = set_ip6_link_local_address_cmd, @@ -3479,60 +3696,63 @@ ip6_neighbor_add_del_interface_address (ip6_main_t * im, u32 sw_if_index, ip6_address_t * address, u32 address_length, - u32 if_address_index, - u32 is_delete) + u32 if_address_index, u32 is_delete) { - vnet_main_t * vnm = vnet_get_main(); - ip6_neighbor_main_t * nm = &ip6_neighbor_main; + vnet_main_t *vnm = vnet_get_main (); + ip6_neighbor_main_t *nm = &ip6_neighbor_main; u32 ri; - vlib_main_t * vm = vnm->vlib_main; - ip6_radv_t * radv_info; + vlib_main_t *vm = vnm->vlib_main; + ip6_radv_t *radv_info; ip6_address_t a; - ip6_mldp_group_t *mcast_group_info; + ip6_mldp_group_t *mcast_group_info; /* create solicited node multicast address for this interface adddress */ ip6_set_solicited_node_multicast_address (&a, 0); - + a.as_u8[0xd] = address->as_u8[0xd]; a.as_u8[0xe] = address->as_u8[0xe]; a.as_u8[0xf] = address->as_u8[0xf]; - - if(!is_delete) + + if (!is_delete) { /* try to create radv_info - does nothing if ipv6 already enabled */ - enable_ip6_interface(vm, sw_if_index); + enable_ip6_interface (vm, sw_if_index); /* look up the radv_t information for this interface */ - vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, ~0); + vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, + sw_if_index, ~0); ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index]; - if(ri != ~0) + if (ri != ~0) { /* get radv_info */ radv_info = pool_elt_at_index (nm->if_radv_pool, ri); /* add address */ - if( !ip6_address_is_link_local_unicast (address)) + if (!ip6_address_is_link_local_unicast (address)) radv_info->ref_count++; /* lookup prefix info for this address on this interface */ - uword * p = mhash_get (&radv_info->address_to_mldp_index, &a); - mcast_group_info = p ? pool_elt_at_index (radv_info->mldp_group_pool, p[0]) : 0; + uword *p = mhash_get (&radv_info->address_to_mldp_index, &a); + mcast_group_info = + p ? pool_elt_at_index (radv_info->mldp_group_pool, p[0]) : 0; /* add -solicted node multicast address */ - if(!mcast_group_info) + if (!mcast_group_info) { /* add */ u32 mi; pool_get (radv_info->mldp_group_pool, mcast_group_info); - + mi = mcast_group_info - radv_info->mldp_group_pool; - mhash_set (&radv_info->address_to_mldp_index, &a, mi, /* old_value */ 0); - + mhash_set (&radv_info->address_to_mldp_index, &a, mi, + /* old_value */ 0); + mcast_group_info->type = 4; mcast_group_info->mcast_source_address_pool = 0; mcast_group_info->num_sources = 0; - clib_memcpy(&mcast_group_info->mcast_address, &a, sizeof(ip6_address_t)); - } + clib_memcpy (&mcast_group_info->mcast_address, &a, + sizeof (ip6_address_t)); + } } } else @@ -3540,20 +3760,23 @@ ip6_neighbor_add_del_interface_address (ip6_main_t * im, /* delete */ /* look up the radv_t information for this interface */ - vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, sw_if_index, ~0); + vec_validate_init_empty (nm->if_radv_pool_index_by_sw_if_index, + sw_if_index, ~0); ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index]; - if(ri != ~0) + if (ri != ~0) { /* get radv_info */ radv_info = pool_elt_at_index (nm->if_radv_pool, ri); /* lookup prefix info for this address on this interface */ - uword * p = mhash_get (&radv_info->address_to_mldp_index, &a); - mcast_group_info = p ? pool_elt_at_index (radv_info->mldp_group_pool, p[0]) : 0; - - if(mcast_group_info) + uword *p = mhash_get (&radv_info->address_to_mldp_index, &a); + mcast_group_info = + p ? pool_elt_at_index (radv_info->mldp_group_pool, p[0]) : 0; + + if (mcast_group_info) { - mhash_unset (&radv_info->address_to_mldp_index, &a,/* old_value */ 0); + mhash_unset (&radv_info->address_to_mldp_index, &a, + /* old_value */ 0); pool_put (radv_info->mldp_group_pool, mcast_group_info); } @@ -3561,41 +3784,47 @@ ip6_neighbor_add_del_interface_address (ip6_main_t * im, radv_info->all_routers_mcast = 0; /* add address */ - if( !ip6_address_is_link_local_unicast (address)) + if (!ip6_address_is_link_local_unicast (address)) radv_info->ref_count--; } } } -clib_error_t *ip6_set_neighbor_limit (u32 neighbor_limit) +clib_error_t * +ip6_set_neighbor_limit (u32 neighbor_limit) { - ip6_neighbor_main_t * nm = &ip6_neighbor_main; + ip6_neighbor_main_t *nm = &ip6_neighbor_main; nm->limit_neighbor_cache_size = neighbor_limit; return 0; } -static clib_error_t * ip6_neighbor_init (vlib_main_t * vm) +static clib_error_t * +ip6_neighbor_init (vlib_main_t * vm) { - ip6_neighbor_main_t * nm = &ip6_neighbor_main; - ip6_main_t * im = &ip6_main; - + ip6_neighbor_main_t *nm = &ip6_neighbor_main; + ip6_main_t *im = &ip6_main; + mhash_init (&nm->neighbor_index_by_key, /* value size */ sizeof (uword), /* key size */ sizeof (ip6_neighbor_key_t)); - icmp6_register_type (vm, ICMP6_neighbor_solicitation, ip6_icmp_neighbor_solicitation_node.index); - icmp6_register_type (vm, ICMP6_neighbor_advertisement, ip6_icmp_neighbor_advertisement_node.index); - icmp6_register_type (vm, ICMP6_router_solicitation, ip6_icmp_router_solicitation_node.index); - icmp6_register_type (vm, ICMP6_router_advertisement, ip6_icmp_router_advertisement_node.index); + icmp6_register_type (vm, ICMP6_neighbor_solicitation, + ip6_icmp_neighbor_solicitation_node.index); + icmp6_register_type (vm, ICMP6_neighbor_advertisement, + ip6_icmp_neighbor_advertisement_node.index); + icmp6_register_type (vm, ICMP6_router_solicitation, + ip6_icmp_router_solicitation_node.index); + icmp6_register_type (vm, ICMP6_router_advertisement, + ip6_icmp_router_advertisement_node.index); /* handler node for ip6 neighbor discovery events and timers */ vlib_register_node (vm, &ip6_icmp_neighbor_discovery_event_node); /* add call backs */ - ip6_add_del_interface_address_callback_t cb; - memset(&cb, 0x0, sizeof(ip6_add_del_interface_address_callback_t)); - + ip6_add_del_interface_address_callback_t cb; + memset (&cb, 0x0, sizeof (ip6_add_del_interface_address_callback_t)); + /* when an interface address changes... */ cb.function = ip6_neighbor_add_del_interface_address; cb.function_opaque = 0; @@ -3614,8 +3843,8 @@ static clib_error_t * ip6_neighbor_init (vlib_main_t * vm) #if 0 /* $$$$ Hack fix for today */ - vec_validate_init_empty - (im->discover_neighbor_next_index_by_hw_if_index, 32, 0 /* drop */); + vec_validate_init_empty + (im->discover_neighbor_next_index_by_hw_if_index, 32, 0 /* drop */ ); #endif return 0; @@ -3624,17 +3853,17 @@ static clib_error_t * ip6_neighbor_init (vlib_main_t * vm) VLIB_INIT_FUNCTION (ip6_neighbor_init); -void vnet_register_ip6_neighbor_resolution_event (vnet_main_t * vnm, - void * address_arg, - uword node_index, - uword type_opaque, - uword data) +void +vnet_register_ip6_neighbor_resolution_event (vnet_main_t * vnm, + void *address_arg, + uword node_index, + uword type_opaque, uword data) { - ip6_neighbor_main_t * nm = &ip6_neighbor_main; - ip6_address_t * address = address_arg; - uword * p; - pending_resolution_t * pr; - + ip6_neighbor_main_t *nm = &ip6_neighbor_main; + ip6_address_t *address = address_arg; + uword *p; + pending_resolution_t *pr; + pool_get (nm->pending_resolutions, pr); pr->next_index = ~0; @@ -3649,26 +3878,25 @@ void vnet_register_ip6_neighbor_resolution_event (vnet_main_t * vnm, pr->next_index = p[0]; mhash_unset (&nm->pending_resolutions_by_address, address, 0); } - - mhash_set (&nm->pending_resolutions_by_address, address, - pr - nm->pending_resolutions, 0 /* old value */); + + mhash_set (&nm->pending_resolutions_by_address, address, + pr - nm->pending_resolutions, 0 /* old value */ ); } -int vnet_add_del_ip6_nd_change_event (vnet_main_t * vnm, - void * data_callback, - u32 pid, - void * address_arg, - uword node_index, - uword type_opaque, - uword data, - int is_add) -{ - ip6_neighbor_main_t * nm = &ip6_neighbor_main; - ip6_address_t * address = address_arg; - uword * p; - pending_resolution_t * mc; - void (*fp)(u32, u8 *) = data_callback; - +int +vnet_add_del_ip6_nd_change_event (vnet_main_t * vnm, + void *data_callback, + u32 pid, + void *address_arg, + uword node_index, + uword type_opaque, uword data, int is_add) +{ + ip6_neighbor_main_t *nm = &ip6_neighbor_main; + ip6_address_t *address = address_arg; + uword *p; + pending_resolution_t *mc; + void (*fp) (u32, u8 *) = data_callback; + if (is_add) { pool_get (nm->mac_changes, mc); @@ -3679,83 +3907,80 @@ int vnet_add_del_ip6_nd_change_event (vnet_main_t * vnm, mc->data = data; mc->data_callback = data_callback; mc->pid = pid; - + p = mhash_get (&nm->mac_changes_by_address, address); if (p) - { - /* Insert new resolution at the head of the list */ - mc->next_index = p[0]; - mhash_unset (&nm->mac_changes_by_address, address, 0); - } - - mhash_set (&nm->mac_changes_by_address, address, + { + /* Insert new resolution at the head of the list */ + mc->next_index = p[0]; + mhash_unset (&nm->mac_changes_by_address, address, 0); + } + + mhash_set (&nm->mac_changes_by_address, address, mc - nm->mac_changes, 0); return 0; } else { u32 index; - pending_resolution_t * mc_last = 0; + pending_resolution_t *mc_last = 0; p = mhash_get (&nm->mac_changes_by_address, address); if (p == 0) - return VNET_API_ERROR_NO_SUCH_ENTRY; + return VNET_API_ERROR_NO_SUCH_ENTRY; index = p[0]; - while (index != (u32)~0) - { - mc = pool_elt_at_index (nm->mac_changes, index); - if (mc->node_index == node_index && - mc->type_opaque == type_opaque && - mc->pid == pid) - { - /* Clients may need to clean up pool entries, too */ - if (fp) - (*fp)(mc->data, 0 /* no new mac addrs */); - if (index == p[0]) - { + while (index != (u32) ~ 0) + { + mc = pool_elt_at_index (nm->mac_changes, index); + if (mc->node_index == node_index && + mc->type_opaque == type_opaque && mc->pid == pid) + { + /* Clients may need to clean up pool entries, too */ + if (fp) + (*fp) (mc->data, 0 /* no new mac addrs */ ); + if (index == p[0]) + { mhash_unset (&nm->mac_changes_by_address, address, 0); - if (mc->next_index != ~0) - mhash_set (&nm->mac_changes_by_address, address, + if (mc->next_index != ~0) + mhash_set (&nm->mac_changes_by_address, address, mc->next_index, 0); - pool_put (nm->mac_changes, mc); - return 0; - } - else - { - ASSERT(mc_last); - mc_last->next_index = mc->next_index; - pool_put (nm->mac_changes, mc); - return 0; - } - } - mc_last = mc; - index = mc->next_index; - } - + pool_put (nm->mac_changes, mc); + return 0; + } + else + { + ASSERT (mc_last); + mc_last->next_index = mc->next_index; + pool_put (nm->mac_changes, mc); + return 0; + } + } + mc_last = mc; + index = mc->next_index; + } + return VNET_API_ERROR_NO_SUCH_ENTRY; } } -int vnet_ip6_nd_term (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_buffer_t * p0, - ethernet_header_t * eth, - ip6_header_t * ip, - u32 sw_if_index, - u16 bd_index, - u8 shg) -{ - ip6_neighbor_main_t * nm = &ip6_neighbor_main; - icmp6_neighbor_solicitation_or_advertisement_header_t * ndh; - pending_resolution_t * mc; +int +vnet_ip6_nd_term (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_buffer_t * p0, + ethernet_header_t * eth, + ip6_header_t * ip, u32 sw_if_index, u16 bd_index, u8 shg) +{ + ip6_neighbor_main_t *nm = &ip6_neighbor_main; + icmp6_neighbor_solicitation_or_advertisement_header_t *ndh; + pending_resolution_t *mc; uword *p; ndh = ip6_next_header (ip); if (ndh->icmp.type != ICMP6_neighbor_solicitation && ndh->icmp.type != ICMP6_neighbor_advertisement) - return 0; + return 0; if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && (p0->flags & VLIB_BUFFER_IS_TRACED))) @@ -3767,69 +3992,68 @@ int vnet_ip6_nd_term (vlib_main_t * vm, /* Check if anyone want ND events for L2 BDs */ p = mhash_get (&nm->mac_changes_by_address, &ip6a_zero); - if (p && shg == 0 && /* Only SHG 0 interface which is more likely local */ + if (p && shg == 0 && /* Only SHG 0 interface which is more likely local */ !ip6_address_is_link_local_unicast (&ip->src_address)) - { + { u32 next_index = p[0]; - while (next_index != (u32)~0) - { - int (*fp)(u32, u8 *, u32, ip6_address_t *); + while (next_index != (u32) ~ 0) + { + int (*fp) (u32, u8 *, u32, ip6_address_t *); int rv = 1; mc = pool_elt_at_index (nm->mac_changes, next_index); fp = mc->data_callback; /* Call the callback, return 1 to suppress dup events */ - if (fp) rv = (*fp)(mc->data, - eth->src_address, - sw_if_index, - &ip->src_address); + if (fp) + rv = (*fp) (mc->data, + eth->src_address, sw_if_index, &ip->src_address); /* Signal the resolver process */ if (rv == 0) - vlib_process_signal_event (vm, mc->node_index, - mc->type_opaque, - mc->data); + vlib_process_signal_event (vm, mc->node_index, + mc->type_opaque, mc->data); next_index = mc->next_index; - } + } } /* Check if MAC entry exsist for solicited target IP */ if (ndh->icmp.type == ICMP6_neighbor_solicitation) { - icmp6_neighbor_discovery_ethernet_link_layer_address_option_t * opt; + icmp6_neighbor_discovery_ethernet_link_layer_address_option_t *opt; l2_bridge_domain_t *bd_config; - u8 * macp; + u8 *macp; opt = (void *) (ndh + 1); - if ((opt->header.type != + if ((opt->header.type != ICMP6_NEIGHBOR_DISCOVERY_OPTION_source_link_layer_address) || (opt->header.n_data_u64s != 1)) - return 0; /* source link layer address option not present */ - + return 0; /* source link layer address option not present */ + bd_config = vec_elt_at_index (l2input_main.bd_configs, bd_index); - macp = (u8 *) hash_get_mem (bd_config->mac_by_ip6, &ndh->target_address); + macp = + (u8 *) hash_get_mem (bd_config->mac_by_ip6, &ndh->target_address); if (macp) - { /* found ip-mac entry, generate eighbor advertisement response */ + { /* found ip-mac entry, generate eighbor advertisement response */ int bogus_length; - vlib_node_runtime_t * error_node = - vlib_node_get_runtime (vm, ip6_icmp_input_node.index); + vlib_node_runtime_t *error_node = + vlib_node_get_runtime (vm, ip6_icmp_input_node.index); ip->dst_address = ip->src_address; ip->src_address = ndh->target_address; ip->hop_limit = 255; opt->header.type = - ICMP6_NEIGHBOR_DISCOVERY_OPTION_target_link_layer_address; + ICMP6_NEIGHBOR_DISCOVERY_OPTION_target_link_layer_address; clib_memcpy (opt->ethernet_address, macp, 6); ndh->icmp.type = ICMP6_neighbor_advertisement; ndh->advertisement_flags = clib_host_to_net_u32 - (ICMP6_NEIGHBOR_ADVERTISEMENT_FLAG_SOLICITED | - ICMP6_NEIGHBOR_ADVERTISEMENT_FLAG_OVERRIDE); + (ICMP6_NEIGHBOR_ADVERTISEMENT_FLAG_SOLICITED | + ICMP6_NEIGHBOR_ADVERTISEMENT_FLAG_OVERRIDE); ndh->icmp.checksum = 0; - ndh->icmp.checksum = ip6_tcp_udp_icmp_compute_checksum(vm, p0, ip, - &bogus_length); - clib_memcpy(eth->dst_address, eth->src_address, 6); - clib_memcpy(eth->src_address, macp, 6); - vlib_error_count (vm, error_node->node_index, + ndh->icmp.checksum = + ip6_tcp_udp_icmp_compute_checksum (vm, p0, ip, &bogus_length); + clib_memcpy (eth->dst_address, eth->src_address, 6); + clib_memcpy (eth->src_address, macp, 6); + vlib_error_count (vm, error_node->node_index, ICMP6_ERROR_NEIGHBOR_ADVERTISEMENTS_TX, 1); - return 1; - } + return 1; + } } return 0; @@ -3839,17 +4063,26 @@ int vnet_ip6_nd_term (vlib_main_t * vm, void ethernet_ndp_change_mac (vlib_main_t * vm, u32 sw_if_index) { - ip6_neighbor_main_t * nm = &ip6_neighbor_main; - ip6_neighbor_t * n; + ip6_neighbor_main_t *nm = &ip6_neighbor_main; + ip6_neighbor_t *n; /* *INDENT-OFF* */ - pool_foreach (n, nm->neighbor_pool, ({ + pool_foreach (n, nm->neighbor_pool, + ({ if (n->key.sw_if_index == sw_if_index) - { + { adj_nbr_walk_nh6 (sw_if_index, &n->key.ip6_address, ip6_nd_mk_complete_walk, n); - } + } })); /* *INDENT-ON* */ } + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip6_neighbor.h b/vnet/vnet/ip/ip6_neighbor.h index 2d572089dc2..b2c9f48ae8a 100644 --- a/vnet/vnet/ip/ip6_neighbor.h +++ b/vnet/vnet/ip/ip6_neighbor.h @@ -21,13 +21,15 @@ #include <vnet/fib/fib_types.h> -typedef struct { +typedef struct +{ ip6_address_t ip6_address; u32 sw_if_index; u32 pad; } ip6_neighbor_key_t; -typedef struct { +typedef struct +{ ip6_neighbor_key_t key; u8 link_layer_address[8]; u16 flags; @@ -37,6 +39,14 @@ typedef struct { fib_node_index_t fib_entry_index; } ip6_neighbor_t; -ip6_neighbor_t * ip6_neighbors_entries (u32 sw_if_index); +ip6_neighbor_t *ip6_neighbors_entries (u32 sw_if_index); -#endif /* included_ip6_neighbor_h */ +#endif /* included_ip6_neighbor_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip6_packet.h b/vnet/vnet/ip/ip6_packet.h index d29a06942ef..1e551c8b67d 100644 --- a/vnet/vnet/ip/ip6_packet.h +++ b/vnet/vnet/ip/ip6_packet.h @@ -43,21 +43,26 @@ #include <vnet/ip/tcp_packet.h> #include <vnet/ip/ip4_packet.h> -typedef union { +typedef union +{ u8 as_u8[16]; u16 as_u16[8]; u32 as_u32[4]; u64 as_u64[2]; uword as_uword[16 / sizeof (uword)]; -} ip6_address_t; +} +ip6_address_t; /* Packed so that the mhash key doesn't include uninitialized pad bytes */ +/* *INDENT-OFF* */ typedef CLIB_PACKED (struct { /* IP address must be first for ip_interface_address_get_address() to work */ ip6_address_t ip6_addr; u32 fib_index; }) ip6_address_fib_t; +/* *INDENT-ON* */ +/* *INDENT-OFF* */ typedef CLIB_PACKED (union { struct { u32 pad[3]; @@ -67,6 +72,7 @@ typedef CLIB_PACKED (union { u8 as_u8[16]; u64 as_u64[2]; }) ip46_address_t; +/* *INDENT-ON* */ #define ip46_address_is_ip4(ip46) (((ip46)->pad[0] | (ip46)->pad[1] | (ip46)->pad[2]) == 0) #define ip46_address_mask_ip4(ip46) ((ip46)->pad[0] = (ip46)->pad[1] = (ip46)->pad[2] = 0) #define ip46_address_set_ip4(ip46, ip) (ip46_address_mask_ip4(ip46), (ip46)->ip4 = (ip)[0]) @@ -75,12 +81,12 @@ typedef CLIB_PACKED (union { #define ip46_address_is_zero(ip46) (((ip46)->as_u64[0] == 0) && ((ip46)->as_u64[1] == 0)) always_inline void -ip46_from_addr_buf(u32 is_ipv6, u8 *buf, ip46_address_t *ip) +ip46_from_addr_buf (u32 is_ipv6, u8 * buf, ip46_address_t * ip) { if (is_ipv6) ip->ip6 = *((ip6_address_t *) buf); else - ip46_address_set_ip4(ip, (ip4_address_t *) buf); + ip46_address_set_ip4 (ip, (ip4_address_t *) buf); } always_inline void @@ -100,7 +106,7 @@ ip6_addr_fib_init (ip6_address_fib_t * addr_fib, ip6_address_t * address, link local unicast fe80::/10 multicast ff00::/8 ietf reserved everything else. */ - + #define foreach_ip6_multicast_address_scope \ _ (loopback, 0x1) \ _ (link_local, 0x2) \ @@ -117,13 +123,15 @@ ip6_addr_fib_init (ip6_address_fib_t * addr_fib, ip6_address_t * address, _ (pim_routers, 0xd) \ _ (mldv2_routers, 0x16) -typedef enum { +typedef enum +{ #define _(f,n) IP6_MULTICAST_SCOPE_##f = n, foreach_ip6_multicast_address_scope #undef _ } ip6_multicast_address_scope_t; -typedef enum { +typedef enum +{ #define _(f,n) IP6_MULTICAST_GROUP_ID_##f = n, foreach_ip6_multicast_link_local_group_id #undef _ @@ -131,13 +139,15 @@ typedef enum { always_inline uword ip6_address_is_multicast (ip6_address_t * a) -{ return a->as_u8[0] == 0xff; } +{ + return a->as_u8[0] == 0xff; +} always_inline uword ip46_address_is_multicast (ip46_address_t * a) { - return ip46_address_is_ip4(a) ? ip4_address_is_multicast(&a->ip4) : - ip6_address_is_multicast(&a->ip6); + return ip46_address_is_ip4 (a) ? ip4_address_is_multicast (&a->ip4) : + ip6_address_is_multicast (&a->ip6); } always_inline void @@ -163,7 +173,8 @@ ip6_set_solicited_node_multicast_address (ip6_address_t * a, u32 id) } always_inline void -ip6_link_local_address_from_ethernet_address (ip6_address_t * a, u8 * ethernet_address) +ip6_link_local_address_from_ethernet_address (ip6_address_t * a, + u8 * ethernet_address) { a->as_u64[0] = a->as_u64[1] = 0; a->as_u16[0] = clib_host_to_net_u16 (0xfe80); @@ -185,8 +196,8 @@ ip6_multicast_ethernet_address (u8 * ethernet_address, u32 group_id) ethernet_address[1] = 0x33; ethernet_address[2] = ((group_id >> 24) & 0xff); ethernet_address[3] = ((group_id >> 16) & 0xff); - ethernet_address[4] = ((group_id >> 8) & 0xff); - ethernet_address[5] = ((group_id >> 0) & 0xff); + ethernet_address[4] = ((group_id >> 8) & 0xff); + ethernet_address[5] = ((group_id >> 0) & 0xff); } always_inline uword @@ -200,8 +211,8 @@ ip6_address_is_equal (ip6_address_t * a, ip6_address_t * b) } always_inline uword -ip6_address_is_equal_masked (ip6_address_t * a, ip6_address_t * b, - ip6_address_t * mask) +ip6_address_is_equal_masked (ip6_address_t * a, ip6_address_t * b, + ip6_address_t * mask) { int i; for (i = 0; i < ARRAY_LEN (a->as_uword); i++) @@ -211,7 +222,7 @@ ip6_address_is_equal_masked (ip6_address_t * a, ip6_address_t * b, b_masked = b->as_uword[i] & mask->as_uword[i]; if (a_masked != b_masked) - return 0; + return 0; } return 1; } @@ -242,7 +253,7 @@ ip6_address_mask_from_width (ip6_address_t * a, u32 width) { bitnum = (7 - (i & 7)); byte = i / 8; - bit = 1<<bitnum; + bit = 1 << bitnum; a->as_u8[byte] |= bit; } } @@ -260,7 +271,9 @@ ip6_address_is_zero (ip6_address_t * a) /* Check for unspecified address ::0 */ always_inline uword ip6_address_is_unspecified (ip6_address_t * a) -{ return ip6_address_is_zero (a); } +{ + return ip6_address_is_zero (a); +} /* Check for loopback address ::1 */ always_inline uword @@ -277,17 +290,23 @@ ip6_address_is_loopback (ip6_address_t * a) /* Check for link local unicast fe80::/10. */ always_inline uword ip6_address_is_link_local_unicast (ip6_address_t * a) -{ return a->as_u8[0] == 0xfe && (a->as_u8[1] & 0xc0) == 0x80; } +{ + return a->as_u8[0] == 0xfe && (a->as_u8[1] & 0xc0) == 0x80; +} /* Check for unique local unicast fc00::/7. */ always_inline uword ip6_address_is_local_unicast (ip6_address_t * a) -{ return (a->as_u8[0] & 0xfe) == 0xfc; } +{ + return (a->as_u8[0] & 0xfe) == 0xfc; +} /* Check for unique global unicast 2000::/3. */ always_inline uword ip6_address_is_global_unicast (ip6_address_t * a) -{ return (a->as_u8[0] & 0xe0) == 0x20; } +{ + return (a->as_u8[0] & 0xe0) == 0x20; +} /* Check for solicited node multicast 0xff02::1:ff00:0/104 */ always_inline uword @@ -299,7 +318,8 @@ ip6_is_solicited_node_multicast_address (ip6_address_t * a) && a->as_u8[12] == 0xff); } -typedef struct { +typedef struct +{ /* 4 bit version, 8 bit traffic class and 20 bit flow label. */ u32 ip_version_traffic_class_and_flow_label; @@ -319,22 +339,23 @@ typedef struct { always_inline void * ip6_next_header (ip6_header_t * i) -{ return (void *) (i + 1); } +{ + return (void *) (i + 1); +} always_inline void -ip6_copy_header (ip6_header_t * dst, - const ip6_header_t *src) +ip6_copy_header (ip6_header_t * dst, const ip6_header_t * src) { - dst->ip_version_traffic_class_and_flow_label = - src->ip_version_traffic_class_and_flow_label; - dst->payload_length = src->payload_length; - dst->protocol = src->protocol; - dst->hop_limit = src->hop_limit; - - dst->src_address.as_uword[0] = src->src_address.as_uword[0]; - dst->src_address.as_uword[1] = src->src_address.as_uword[1]; - dst->dst_address.as_uword[0] = src->dst_address.as_uword[0]; - dst->dst_address.as_uword[1] = src->dst_address.as_uword[1]; + dst->ip_version_traffic_class_and_flow_label = + src->ip_version_traffic_class_and_flow_label; + dst->payload_length = src->payload_length; + dst->protocol = src->protocol; + dst->hop_limit = src->hop_limit; + + dst->src_address.as_uword[0] = src->src_address.as_uword[0]; + dst->src_address.as_uword[1] = src->src_address.as_uword[1]; + dst->dst_address.as_uword[0] = src->dst_address.as_uword[0]; + dst->dst_address.as_uword[1] = src->dst_address.as_uword[1]; } always_inline void @@ -391,23 +412,30 @@ ip6_tcp_reply_x2 (ip6_header_t * ip0, ip6_header_t * ip1, } +/* *INDENT-OFF* */ typedef CLIB_PACKED (struct { u8 data; }) ip6_pad1_option_t; +/* *INDENT-ON* */ +/* *INDENT-OFF* */ typedef CLIB_PACKED (struct { u8 type; u8 len; u8 data[0]; }) ip6_padN_option_t; +/* *INDENT-ON* */ +/* *INDENT-OFF* */ typedef CLIB_PACKED (struct { -#define IP6_MLDP_ALERT_TYPE 0x5 +#define IP6_MLDP_ALERT_TYPE 0x5 u8 type; u8 len; u16 value; }) ip6_router_alert_option_t; +/* *INDENT-ON* */ +/* *INDENT-OFF* */ typedef CLIB_PACKED (struct { u8 next_hdr; /* Length of this header plus option data in 8 byte units. */ @@ -440,13 +468,16 @@ typedef CLIB_PACKED (struct { u8 n_data_u64s; u8 data[0]; }) ip6_hop_by_hop_ext_t; +/* *INDENT-ON* */ +/* *INDENT-OFF* */ typedef CLIB_PACKED (struct { u8 next_hdr; u8 rsv; u16 fragment_offset_and_more; u32 identification; }) ip6_frag_hdr_t; +/* *INDENT-ON* */ #define ip6_frag_hdr_offset(hdr) \ (clib_net_to_host_u16((hdr)->fragment_offset_and_more) >> 3) @@ -458,3 +489,11 @@ typedef CLIB_PACKED (struct { clib_host_to_net_u16(((offset) << 3) + !!(more)) #endif /* included_ip6_packet_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip6_pg.c b/vnet/vnet/ip/ip6_pg.c index 872f197076a..ba1e4ad9a58 100644 --- a/vnet/vnet/ip/ip6_pg.c +++ b/vnet/vnet/ip/ip6_pg.c @@ -43,18 +43,16 @@ static void ip6_pg_edit_function (pg_main_t * pg, pg_stream_t * s, - pg_edit_group_t * g, - u32 * packets, - u32 n_packets) + pg_edit_group_t * g, u32 * packets, u32 n_packets) { - vlib_main_t * vm = vlib_get_main(); + vlib_main_t *vm = vlib_get_main (); u32 ip_header_offset = g->start_byte_offset; while (n_packets >= 2) { u32 pi0, pi1; - vlib_buffer_t * p0, * p1; - ip6_header_t * ip0, * ip1; + vlib_buffer_t *p0, *p1; + ip6_header_t *ip0, *ip1; pi0 = packets[0]; pi1 = packets[1]; @@ -66,15 +64,19 @@ ip6_pg_edit_function (pg_main_t * pg, ip0 = (void *) (p0->data + ip_header_offset); ip1 = (void *) (p1->data + ip_header_offset); - ip0->payload_length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, p0) - ip_header_offset - sizeof (ip0[0])); - ip1->payload_length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, p1) - ip_header_offset - sizeof (ip1[0])); + ip0->payload_length = + clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, p0) - + ip_header_offset - sizeof (ip0[0])); + ip1->payload_length = + clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, p1) - + ip_header_offset - sizeof (ip1[0])); } while (n_packets >= 1) { u32 pi0; - vlib_buffer_t * p0; - ip6_header_t * ip0; + vlib_buffer_t *p0; + ip6_header_t *ip0; pi0 = packets[0]; p0 = vlib_get_buffer (vm, pi0); @@ -83,11 +85,14 @@ ip6_pg_edit_function (pg_main_t * pg, ip0 = (void *) (p0->data + ip_header_offset); - ip0->payload_length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, p0) - ip_header_offset - sizeof (ip0[0])); + ip0->payload_length = + clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, p0) - + ip_header_offset - sizeof (ip0[0])); } } -typedef struct { +typedef struct +{ pg_edit_t ip_version; pg_edit_t traffic_class; pg_edit_t flow_label; @@ -102,32 +107,29 @@ pg_ip6_header_init (pg_ip6_header_t * p) { /* Initialize fields that are not bit fields in the IP header. */ #define _(f) pg_edit_init (&p->f, ip6_header_t, f); - _ (payload_length); - _ (hop_limit); - _ (protocol); - _ (src_address); - _ (dst_address); + _(payload_length); + _(hop_limit); + _(protocol); + _(src_address); + _(dst_address); #undef _ /* Initialize bit fields. */ pg_edit_init_bitfield (&p->ip_version, ip6_header_t, - ip_version_traffic_class_and_flow_label, - 28, 4); + ip_version_traffic_class_and_flow_label, 28, 4); pg_edit_init_bitfield (&p->traffic_class, ip6_header_t, - ip_version_traffic_class_and_flow_label, - 20, 8); + ip_version_traffic_class_and_flow_label, 20, 8); pg_edit_init_bitfield (&p->flow_label, ip6_header_t, - ip_version_traffic_class_and_flow_label, - 0, 20); + ip_version_traffic_class_and_flow_label, 0, 20); } uword unformat_pg_ip6_header (unformat_input_t * input, va_list * args) { - pg_stream_t * s = va_arg (*args, pg_stream_t *); - pg_ip6_header_t * p; + pg_stream_t *s = va_arg (*args, pg_stream_t *); + pg_ip6_header_t *p; u32 group_index; - + p = pg_create_edit_group (s, sizeof (p[0]), sizeof (ip6_header_t), &group_index); pg_ip6_header_init (p); @@ -140,21 +142,19 @@ unformat_pg_ip6_header (unformat_input_t * input, va_list * args) p->payload_length.type = PG_EDIT_UNSPECIFIED; - if (! unformat (input, "%U: %U -> %U", - unformat_pg_edit, - unformat_ip_protocol, &p->protocol, - unformat_pg_edit, - unformat_ip6_address, &p->src_address, - unformat_pg_edit, - unformat_ip6_address, &p->dst_address)) + if (!unformat (input, "%U: %U -> %U", + unformat_pg_edit, + unformat_ip_protocol, &p->protocol, + unformat_pg_edit, + unformat_ip6_address, &p->src_address, + unformat_pg_edit, unformat_ip6_address, &p->dst_address)) goto error; /* Parse options. */ while (1) { if (unformat (input, "version %U", - unformat_pg_edit, - unformat_pg_number, &p->ip_version)) + unformat_pg_edit, unformat_pg_number, &p->ip_version)) ; else if (unformat (input, "traffic-class %U", @@ -168,8 +168,7 @@ unformat_pg_ip6_header (unformat_input_t * input, va_list * args) ; else if (unformat (input, "hop-limit %U", - unformat_pg_edit, - unformat_pg_number, &p->hop_limit)) + unformat_pg_edit, unformat_pg_number, &p->hop_limit)) ; /* Can't parse input: try next protocol level. */ @@ -178,9 +177,9 @@ unformat_pg_ip6_header (unformat_input_t * input, va_list * args) } { - ip_main_t * im = &ip_main; + ip_main_t *im = &ip_main; ip_protocol_t protocol; - ip_protocol_info_t * pi; + ip_protocol_info_t *pi; pi = 0; if (p->protocol.type == PG_EDIT_FIXED) @@ -193,7 +192,7 @@ unformat_pg_ip6_header (unformat_input_t * input, va_list * args) && unformat_user (input, pi->unformat_pg_edit, s)) ; - else if (! unformat_user (input, unformat_pg_payload, s)) + else if (!unformat_user (input, unformat_pg_payload, s)) goto error; if (p->payload_length.type == PG_EDIT_UNSPECIFIED @@ -201,22 +200,32 @@ unformat_pg_ip6_header (unformat_input_t * input, va_list * args) && group_index + 1 < vec_len (s->edit_groups)) { pg_edit_set_fixed (&p->payload_length, - pg_edit_group_n_bytes (s, group_index) - sizeof (ip6_header_t)); + pg_edit_group_n_bytes (s, + group_index) - + sizeof (ip6_header_t)); } p = pg_get_edit_group (s, group_index); if (p->payload_length.type == PG_EDIT_UNSPECIFIED) { - pg_edit_group_t * g = pg_stream_get_group (s, group_index); + pg_edit_group_t *g = pg_stream_get_group (s, group_index); g->edit_function = ip6_pg_edit_function; } return 1; } - error: +error: /* Free up any edits we may have added. */ pg_free_edit_group (s); return 0; } + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip_api.c b/vnet/vnet/ip/ip_api.c index a11362642c6..cd9b7397d29 100644 --- a/vnet/vnet/ip/ip_api.c +++ b/vnet/vnet/ip/ip_api.c @@ -119,11 +119,11 @@ vl_api_ip_neighbor_dump_t_handler (vl_api_ip_neighbor_dump_t * mp) /* *INDENT-OFF* */ vec_foreach (n, ns) { - send_ip_neighbor_details (mp->is_ipv6, - ((n->flags & IP6_NEIGHBOR_FLAG_STATIC) ? 1 : 0), - (u8 *) n->link_layer_address, - (u8 *) & (n->key.ip6_address.as_u8), - q, mp->context); + send_ip_neighbor_details + (mp->is_ipv6, ((n->flags & IP6_NEIGHBOR_FLAG_STATIC) ? 1 : 0), + (u8 *) n->link_layer_address, + (u8 *) & (n->key.ip6_address.as_u8), + q, mp->context); } /* *INDENT-ON* */ vec_free (ns); @@ -285,22 +285,21 @@ vl_api_ip_fib_dump_t_handler (vl_api_ip_fib_dump_t * mp) })); } })); + /* *INDENT-ON* */ - vec_sort_with_function(lfeis, fib_entry_cmp_for_sort); + vec_sort_with_function (lfeis, fib_entry_cmp_for_sort); - vec_foreach(lfeip, lfeis) + vec_foreach (lfeip, lfeis) { - fib_entry_get_prefix(*lfeip, &pfx); - fib_index = fib_entry_get_fib_index(*lfeip); - fib_table = fib_table_get(fib_index, pfx.fp_proto); + fib_entry_get_prefix (*lfeip, &pfx); + fib_index = fib_entry_get_fib_index (*lfeip); + fib_table = fib_table_get (fib_index, pfx.fp_proto); api_rpaths = NULL; - fib_entry_encode(*lfeip, &api_rpaths); + fib_entry_encode (*lfeip, &api_rpaths); send_ip_fib_details (am, q, - fib_table->ft_table_id, - &pfx, - api_rpaths, - mp->context); - vec_free(api_rpaths); + fib_table->ft_table_id, &pfx, api_rpaths, + mp->context); + vec_free (api_rpaths); } vec_free (lfeis); @@ -326,16 +325,16 @@ vl_api_ip6_fib_details_t_print (vl_api_ip6_fib_details_t * mp) static void send_ip6_fib_details (vpe_api_main_t * am, - unix_shared_memory_queue_t * q, - u32 table_id, fib_prefix_t *pfx, - fib_route_path_encode_t *api_rpaths, u32 context) + unix_shared_memory_queue_t * q, + u32 table_id, fib_prefix_t * pfx, + fib_route_path_encode_t * api_rpaths, u32 context) { vl_api_ip6_fib_details_t *mp; fib_route_path_encode_t *api_rpath; vl_api_fib_path_t *fp; int path_count; - path_count = vec_len(api_rpaths); + path_count = vec_len (api_rpaths); mp = vl_msg_api_alloc (sizeof (*mp) + path_count * sizeof (*fp)); if (!mp) return; @@ -345,11 +344,11 @@ send_ip6_fib_details (vpe_api_main_t * am, mp->table_id = htonl (table_id); mp->address_length = pfx->fp_len; - memcpy(mp->address, &pfx->fp_addr.ip6, sizeof(pfx->fp_addr.ip6)); + memcpy (mp->address, &pfx->fp_addr.ip6, sizeof (pfx->fp_addr.ip6)); mp->count = htonl (path_count); fp = mp->path; - vec_foreach(api_rpath, api_rpaths) + vec_foreach (api_rpath, api_rpaths) { memset (fp, 0, sizeof (*fp)); switch (api_rpath->dpo.dpoi_type) @@ -363,13 +362,13 @@ send_ip6_fib_details (vpe_api_main_t * am, case DPO_IP_NULL: switch (api_rpath->dpo.dpoi_index) { - case IP_NULL_DPO_ACTION_NUM+IP_NULL_ACTION_NONE: + case IP_NULL_DPO_ACTION_NUM + IP_NULL_ACTION_NONE: fp->is_drop = true; break; - case IP_NULL_DPO_ACTION_NUM+IP_NULL_ACTION_SEND_ICMP_UNREACH: + case IP_NULL_DPO_ACTION_NUM + IP_NULL_ACTION_SEND_ICMP_UNREACH: fp->is_unreach = true; break; - case IP_NULL_DPO_ACTION_NUM+IP_NULL_ACTION_SEND_ICMP_PROHIBIT: + case IP_NULL_DPO_ACTION_NUM + IP_NULL_ACTION_SEND_ICMP_PROHIBIT: fp->is_prohibit = true; break; default: @@ -379,8 +378,8 @@ send_ip6_fib_details (vpe_api_main_t * am, default: break; } - fp->weight = htonl(api_rpath->rpath.frp_weight); - fp->sw_if_index = htonl(api_rpath->rpath.frp_sw_if_index); + fp->weight = htonl (api_rpath->rpath.frp_weight); + fp->sw_if_index = htonl (api_rpath->rpath.frp_sw_if_index); copy_fib_next_hop (api_rpath, fp); fp++; } @@ -388,60 +387,56 @@ send_ip6_fib_details (vpe_api_main_t * am, vl_msg_api_send_shmem (q, (u8 *) & mp); } -typedef struct apt_ip6_fib_show_ctx_t_ { - u32 fib_index; - fib_node_index_t *entries; +typedef struct apt_ip6_fib_show_ctx_t_ +{ + u32 fib_index; + fib_node_index_t *entries; } api_ip6_fib_show_ctx_t; static void -api_ip6_fib_table_put_entries (clib_bihash_kv_24_8_t * kvp, - void *arg) +api_ip6_fib_table_put_entries (clib_bihash_kv_24_8_t * kvp, void *arg) { api_ip6_fib_show_ctx_t *ctx = arg; if ((kvp->key[2] >> 32) == ctx->fib_index) { - vec_add1(ctx->entries, kvp->value); + vec_add1 (ctx->entries, kvp->value); } } static void -api_ip6_fib_table_get_all (unix_shared_memory_queue_t *q, - vl_api_ip6_fib_dump_t *mp, - fib_table_t *fib_table) +api_ip6_fib_table_get_all (unix_shared_memory_queue_t * q, + vl_api_ip6_fib_dump_t * mp, + fib_table_t * fib_table) { vpe_api_main_t *am = &vpe_api_main; ip6_main_t *im6 = &ip6_main; ip6_fib_t *fib = &fib_table->v6; fib_node_index_t *fib_entry_index; api_ip6_fib_show_ctx_t ctx = { - .fib_index = fib->index, - .entries = NULL, + .fib_index = fib->index,.entries = NULL, }; fib_route_path_encode_t *api_rpaths; fib_prefix_t pfx; - BV(clib_bihash_foreach_key_value_pair) - ((BVT(clib_bihash) *) &im6->ip6_table[IP6_FIB_TABLE_NON_FWDING].ip6_hash, - api_ip6_fib_table_put_entries, - &ctx); + BV (clib_bihash_foreach_key_value_pair) + ((BVT (clib_bihash) *) & im6->ip6_table[IP6_FIB_TABLE_NON_FWDING]. + ip6_hash, api_ip6_fib_table_put_entries, &ctx); - vec_sort_with_function(ctx.entries, fib_entry_cmp_for_sort); + vec_sort_with_function (ctx.entries, fib_entry_cmp_for_sort); - vec_foreach(fib_entry_index, ctx.entries) - { - fib_entry_get_prefix(*fib_entry_index, &pfx); - api_rpaths = NULL; - fib_entry_encode(*fib_entry_index, &api_rpaths); - send_ip6_fib_details (am, q, - fib_table->ft_table_id, - &pfx, - api_rpaths, - mp->context); - vec_free(api_rpaths); - } + vec_foreach (fib_entry_index, ctx.entries) + { + fib_entry_get_prefix (*fib_entry_index, &pfx); + api_rpaths = NULL; + fib_entry_encode (*fib_entry_index, &api_rpaths); + send_ip6_fib_details (am, q, + fib_table->ft_table_id, + &pfx, api_rpaths, mp->context); + vec_free (api_rpaths); + } - vec_free(ctx.entries); + vec_free (ctx.entries); } static void @@ -460,6 +455,7 @@ vl_api_ip6_fib_dump_t_handler (vl_api_ip6_fib_dump_t * mp) ({ api_ip6_fib_table_get_all(q, mp, fib_table); })); + /* *INDENT-ON* */ } static void @@ -610,7 +606,7 @@ add_del_route_t_handler (u8 is_multipath, if (pool_is_free_index (cm->tables, ntohl (classify_table_index))) { - stats_dsunlock(); + stats_dsunlock (); return VNET_API_ERROR_NO_SUCH_TABLE; } @@ -620,7 +616,7 @@ add_del_route_t_handler (u8 is_multipath, } else { - stats_dsunlock(); + stats_dsunlock (); return VNET_API_ERROR_NO_SUCH_TABLE; } @@ -651,7 +647,7 @@ add_del_route_t_handler (u8 is_multipath, } } - stats_dsunlock(); + stats_dsunlock (); return (0); } @@ -914,9 +910,9 @@ vl_api_ip_address_dump_t_handler (vl_api_ip_address_dump_t * mp) if (q == 0) return; - /* *INDENT-OFF* */ if (mp->is_ipv6) { + /* *INDENT-OFF* */ foreach_ip_interface_address (lm6, ia, sw_if_index, 1 /* honor unnumbered */, ({ @@ -924,10 +920,11 @@ vl_api_ip_address_dump_t_handler (vl_api_ip_address_dump_t * mp) u16 prefix_length = ia->address_length; send_ip_address_details(am, q, (u8*)r6, prefix_length, 1, mp->context); })); + /* *INDENT-ON* */ } - else { + /* *INDENT-OFF* */ foreach_ip_interface_address (lm4, ia, sw_if_index, 1 /* honor unnumbered */, ({ @@ -935,9 +932,8 @@ vl_api_ip_address_dump_t_handler (vl_api_ip_address_dump_t * mp) u16 prefix_length = ia->address_length; send_ip_address_details(am, q, (u8*)r4, prefix_length, 0, mp->context); })); + /* *INDENT-ON* */ } - /* *INDENT-ON* */ - BAD_SW_IF_INDEX_LABEL; } diff --git a/vnet/vnet/ip/ip_checksum.c b/vnet/vnet/ip/ip_checksum.c index 680b7a44c63..6a9cf657a5c 100644 --- a/vnet/vnet/ip/ip_checksum.c +++ b/vnet/vnet/ip/ip_checksum.c @@ -40,7 +40,7 @@ #include <vnet/ip/ip.h> ip_csum_t -ip_incremental_checksum (ip_csum_t sum, void * _data, uword n_bytes) +ip_incremental_checksum (ip_csum_t sum, void *_data, uword n_bytes) { uword data = pointer_to_uword (_data); ip_csum_t sum0, sum1; @@ -61,27 +61,27 @@ do { \ } \ } while (0) - _ (u8); - _ (u16); + _(u8); + _(u16); if (BITS (ip_csum_t) > 32) - _ (u32); + _(u32); #undef _ - { - ip_csum_t * d = uword_to_pointer (data, ip_csum_t *); + { + ip_csum_t *d = uword_to_pointer (data, ip_csum_t *); - while (n_bytes >= 2 * sizeof (d[0])) - { - sum0 = ip_csum_with_carry (sum0, d[0]); - sum1 = ip_csum_with_carry (sum1, d[1]); - d += 2; - n_bytes -= 2 * sizeof (d[0]); - } + while (n_bytes >= 2 * sizeof (d[0])) + { + sum0 = ip_csum_with_carry (sum0, d[0]); + sum1 = ip_csum_with_carry (sum1, d[1]); + d += 2; + n_bytes -= 2 * sizeof (d[0]); + } + + data = pointer_to_uword (d); + } - data = pointer_to_uword (d); - } - #define _(t) \ do { \ if (n_bytes >= sizeof (t) && sizeof (t) <= sizeof (ip_csum_t)) \ @@ -92,47 +92,49 @@ do { \ } \ } while (0) - if (BITS (ip_csum_t) > 32) - _ (u64); - _ (u32); - _ (u16); - _ (u8); + if (BITS (ip_csum_t) > 32) + _(u64); + _(u32); + _(u16); + _(u8); #undef _ - /* Combine even and odd sums. */ - sum0 = ip_csum_with_carry (sum0, sum1); + /* Combine even and odd sums. */ + sum0 = ip_csum_with_carry (sum0, sum1); - return sum0; + return sum0; } ip_csum_t -ip_csum_and_memcpy (ip_csum_t sum, void * dst, void * src, uword n_bytes) +ip_csum_and_memcpy (ip_csum_t sum, void *dst, void *src, uword n_bytes) { uword n_left; ip_csum_t sum0 = sum, sum1; n_left = n_bytes; - if (n_left && (pointer_to_uword (dst) & sizeof(u8))) + if (n_left && (pointer_to_uword (dst) & sizeof (u8))) { - u8 * d8, val; + u8 *d8, val; d8 = dst; - val = ((u8 *)src)[0]; + val = ((u8 *) src)[0]; d8[0] = val; dst += 1; src += 1; n_left -= 1; - sum0 = ip_csum_with_carry (sum0, val << (8 * CLIB_ARCH_IS_LITTLE_ENDIAN)); + sum0 = + ip_csum_with_carry (sum0, val << (8 * CLIB_ARCH_IS_LITTLE_ENDIAN)); } - while ((n_left >= sizeof (u16)) && (pointer_to_uword (dst) & (sizeof (sum) - sizeof (u16)))) + while ((n_left >= sizeof (u16)) + && (pointer_to_uword (dst) & (sizeof (sum) - sizeof (u16)))) { - u16 * d16, * s16; + u16 *d16, *s16; d16 = dst; s16 = src; - + d16[0] = clib_mem_unaligned (&s16[0], u16); sum0 = ip_csum_with_carry (sum0, d16[0]); @@ -155,8 +157,8 @@ ip_csum_and_memcpy (ip_csum_t sum, void * dst, void * src, uword n_bytes) dst_even[0] = dst0; dst_even[1] = dst1; - dst += 2 * sizeof(dst_even[0]); - src += 2 * sizeof(dst_even[0]); + dst += 2 * sizeof (dst_even[0]); + src += 2 * sizeof (dst_even[0]); n_left -= 2 * sizeof (dst_even[0]); sum0 = ip_csum_with_carry (sum0, dst0); @@ -175,8 +177,8 @@ ip_csum_and_memcpy (ip_csum_t sum, void * dst, void * src, uword n_bytes) dst_even[0] = dst0; - dst += 1 * sizeof(sum); - src += 1 * sizeof(sum); + dst += 1 * sizeof (sum); + src += 1 * sizeof (sum); n_left -= 1 * sizeof (sum); sum0 = ip_csum_with_carry (sum0, dst0); @@ -202,7 +204,7 @@ ip_csum_and_memcpy (ip_csum_t sum, void * dst, void * src, uword n_bytes) if (n_left == 1) { - u8 * d8, * s8, val; + u8 *d8, *s8, val; d8 = dst; s8 = src; @@ -216,3 +218,11 @@ ip_csum_and_memcpy (ip_csum_t sum, void * dst, void * src, uword n_bytes) return sum0; } + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip_frag.c b/vnet/vnet/ip/ip_frag.c index 8aa21a023d2..ca062bfd5e8 100644 --- a/vnet/vnet/ip/ip_frag.c +++ b/vnet/vnet/ip/ip_frag.c @@ -24,7 +24,8 @@ #include <vnet/ip/ip.h> -typedef struct { +typedef struct +{ u8 ipv6; u16 header_offset; u16 mtu; @@ -32,413 +33,505 @@ typedef struct { u16 n_fragments; } ip_frag_trace_t; -static u8 * format_ip_frag_trace (u8 * s, va_list * args) +static u8 * +format_ip_frag_trace (u8 * s, va_list * args) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); - ip_frag_trace_t * t = va_arg (*args, ip_frag_trace_t *); - s = format(s, "IPv%s offset: %u mtu: %u fragments: %u", - t->ipv6?"6":"4", t->header_offset, t->mtu, t->n_fragments); + ip_frag_trace_t *t = va_arg (*args, ip_frag_trace_t *); + s = format (s, "IPv%s offset: %u mtu: %u fragments: %u", + t->ipv6 ? "6" : "4", t->header_offset, t->mtu, t->n_fragments); return s; } static u32 running_fragment_id; static void -ip4_frag_do_fragment(vlib_main_t *vm, u32 pi, u32 **buffer, ip_frag_error_t *error) +ip4_frag_do_fragment (vlib_main_t * vm, u32 pi, u32 ** buffer, + ip_frag_error_t * error) { vlib_buffer_t *p; ip4_header_t *ip4; - u16 mtu, ptr, len, max, rem, - offset, ip_frag_id, ip_frag_offset; + u16 mtu, ptr, len, max, rem, offset, ip_frag_id, ip_frag_offset; u8 *packet, more; - vec_add1(*buffer, pi); - p = vlib_get_buffer(vm, pi); - offset = vnet_buffer(p)->ip_frag.header_offset; - mtu = vnet_buffer(p)->ip_frag.mtu; - packet = (u8 *)vlib_buffer_get_current(p); - ip4 = (ip4_header_t *)(packet + offset); + vec_add1 (*buffer, pi); + p = vlib_get_buffer (vm, pi); + offset = vnet_buffer (p)->ip_frag.header_offset; + mtu = vnet_buffer (p)->ip_frag.mtu; + packet = (u8 *) vlib_buffer_get_current (p); + ip4 = (ip4_header_t *) (packet + offset); - rem = clib_net_to_host_u16(ip4->length) - sizeof(*ip4); + rem = clib_net_to_host_u16 (ip4->length) - sizeof (*ip4); ptr = 0; - max = (mtu - sizeof(*ip4) - vnet_buffer(p)->ip_frag.header_offset) & ~0x7; + max = (mtu - sizeof (*ip4) - vnet_buffer (p)->ip_frag.header_offset) & ~0x7; - if (rem < (p->current_length - offset - sizeof(*ip4))) { - *error = IP_FRAG_ERROR_MALFORMED; - return; - } + if (rem < (p->current_length - offset - sizeof (*ip4))) + { + *error = IP_FRAG_ERROR_MALFORMED; + return; + } - if (mtu < sizeof(*ip4)) { - *error = IP_FRAG_ERROR_CANT_FRAGMENT_HEADER; - return; - } + if (mtu < sizeof (*ip4)) + { + *error = IP_FRAG_ERROR_CANT_FRAGMENT_HEADER; + return; + } if (ip4->flags_and_fragment_offset & - clib_host_to_net_u16(IP4_HEADER_FLAG_DONT_FRAGMENT)) { - *error = IP_FRAG_ERROR_DONT_FRAGMENT_SET; - return; - } - - if (ip4_is_fragment(ip4)) { - ip_frag_id = ip4->fragment_id; - ip_frag_offset = ip4_get_fragment_offset(ip4); - more = !!(ip4->flags_and_fragment_offset & clib_host_to_net_u16(IP4_HEADER_FLAG_MORE_FRAGMENTS)); - } else { - ip_frag_id = (++running_fragment_id); - ip_frag_offset = 0; - more = 0; - } + clib_host_to_net_u16 (IP4_HEADER_FLAG_DONT_FRAGMENT)) + { + *error = IP_FRAG_ERROR_DONT_FRAGMENT_SET; + return; + } - //Do the actual fragmentation - while (rem) { - u32 bi; - vlib_buffer_t *b; - ip4_header_t *fip4; - - len = (rem > (mtu - sizeof(*ip4) - vnet_buffer(p)->ip_frag.header_offset)) ? max : rem; - - if (ptr == 0) { - bi = pi; - b = p; - fip4 = (ip4_header_t *)(vlib_buffer_get_current(b) + offset); - } else { - if (!vlib_buffer_alloc(vm, &bi, 1)) { - *error = IP_FRAG_ERROR_MEMORY; - return; - } - vec_add1(*buffer, bi); - b = vlib_get_buffer(vm, bi); - vnet_buffer(b)->sw_if_index[VLIB_RX] = vnet_buffer(p)->sw_if_index[VLIB_RX]; - vnet_buffer(b)->sw_if_index[VLIB_TX] = vnet_buffer(p)->sw_if_index[VLIB_TX]; - fip4 = (ip4_header_t *)(vlib_buffer_get_current(b) + offset); - - //Copy offset and ip4 header - clib_memcpy(b->data, packet, offset + sizeof(*ip4)); - //Copy data - clib_memcpy(((u8*)(fip4)) + sizeof(*fip4), - packet + offset + sizeof(*fip4) + ptr, len); + if (ip4_is_fragment (ip4)) + { + ip_frag_id = ip4->fragment_id; + ip_frag_offset = ip4_get_fragment_offset (ip4); + more = + ! !(ip4->flags_and_fragment_offset & + clib_host_to_net_u16 (IP4_HEADER_FLAG_MORE_FRAGMENTS)); } - b->current_length = offset + len + sizeof(*fip4); - - fip4->fragment_id = ip_frag_id; - fip4->flags_and_fragment_offset = clib_host_to_net_u16((ptr >> 3) + ip_frag_offset); - fip4->flags_and_fragment_offset |= clib_host_to_net_u16(((len != rem) || more) << 13); - // ((len0 != rem0) || more0) << 13 is optimization for - // ((len0 != rem0) || more0) ? IP4_HEADER_FLAG_MORE_FRAGMENTS : 0 - fip4->length = clib_host_to_net_u16(len + sizeof(*fip4)); - fip4->checksum = ip4_header_checksum(fip4); - - if(vnet_buffer(p)->ip_frag.flags & IP_FRAG_FLAG_IP4_HEADER) { - //Encapsulating ipv4 header - ip4_header_t *encap_header4 = (ip4_header_t *)vlib_buffer_get_current(b); - encap_header4->length = clib_host_to_net_u16(b->current_length); - encap_header4->checksum = ip4_header_checksum(encap_header4); - } else if (vnet_buffer(p)->ip_frag.flags & IP_FRAG_FLAG_IP6_HEADER) { - //Encapsulating ipv6 header - ip6_header_t *encap_header6 = (ip6_header_t *)vlib_buffer_get_current(b); - encap_header6->payload_length = clib_host_to_net_u16(b->current_length - sizeof(*encap_header6)); + else + { + ip_frag_id = (++running_fragment_id); + ip_frag_offset = 0; + more = 0; } - rem -= len; - ptr += len; - } + //Do the actual fragmentation + while (rem) + { + u32 bi; + vlib_buffer_t *b; + ip4_header_t *fip4; + + len = + (rem > + (mtu - sizeof (*ip4) - + vnet_buffer (p)->ip_frag.header_offset)) ? max : rem; + + if (ptr == 0) + { + bi = pi; + b = p; + fip4 = (ip4_header_t *) (vlib_buffer_get_current (b) + offset); + } + else + { + if (!vlib_buffer_alloc (vm, &bi, 1)) + { + *error = IP_FRAG_ERROR_MEMORY; + return; + } + vec_add1 (*buffer, bi); + b = vlib_get_buffer (vm, bi); + vnet_buffer (b)->sw_if_index[VLIB_RX] = + vnet_buffer (p)->sw_if_index[VLIB_RX]; + vnet_buffer (b)->sw_if_index[VLIB_TX] = + vnet_buffer (p)->sw_if_index[VLIB_TX]; + fip4 = (ip4_header_t *) (vlib_buffer_get_current (b) + offset); + + //Copy offset and ip4 header + clib_memcpy (b->data, packet, offset + sizeof (*ip4)); + //Copy data + clib_memcpy (((u8 *) (fip4)) + sizeof (*fip4), + packet + offset + sizeof (*fip4) + ptr, len); + } + b->current_length = offset + len + sizeof (*fip4); + + fip4->fragment_id = ip_frag_id; + fip4->flags_and_fragment_offset = + clib_host_to_net_u16 ((ptr >> 3) + ip_frag_offset); + fip4->flags_and_fragment_offset |= + clib_host_to_net_u16 (((len != rem) || more) << 13); + // ((len0 != rem0) || more0) << 13 is optimization for + // ((len0 != rem0) || more0) ? IP4_HEADER_FLAG_MORE_FRAGMENTS : 0 + fip4->length = clib_host_to_net_u16 (len + sizeof (*fip4)); + fip4->checksum = ip4_header_checksum (fip4); + + if (vnet_buffer (p)->ip_frag.flags & IP_FRAG_FLAG_IP4_HEADER) + { + //Encapsulating ipv4 header + ip4_header_t *encap_header4 = + (ip4_header_t *) vlib_buffer_get_current (b); + encap_header4->length = clib_host_to_net_u16 (b->current_length); + encap_header4->checksum = ip4_header_checksum (encap_header4); + } + else if (vnet_buffer (p)->ip_frag.flags & IP_FRAG_FLAG_IP6_HEADER) + { + //Encapsulating ipv6 header + ip6_header_t *encap_header6 = + (ip6_header_t *) vlib_buffer_get_current (b); + encap_header6->payload_length = + clib_host_to_net_u16 (b->current_length - + sizeof (*encap_header6)); + } + + rem -= len; + ptr += len; + } } void -ip_frag_set_vnet_buffer (vlib_buffer_t *b, u16 offset, u16 mtu, u8 next_index, u8 flags) +ip_frag_set_vnet_buffer (vlib_buffer_t * b, u16 offset, u16 mtu, + u8 next_index, u8 flags) { - vnet_buffer(b)->ip_frag.header_offset = offset; - vnet_buffer(b)->ip_frag.mtu = mtu; - vnet_buffer(b)->ip_frag.next_index = next_index; - vnet_buffer(b)->ip_frag.flags = flags; + vnet_buffer (b)->ip_frag.header_offset = offset; + vnet_buffer (b)->ip_frag.mtu = mtu; + vnet_buffer (b)->ip_frag.next_index = next_index; + vnet_buffer (b)->ip_frag.flags = flags; } static uword -ip4_frag (vlib_main_t *vm, - vlib_node_runtime_t *node, - vlib_frame_t *frame) +ip4_frag (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { u32 n_left_from, *from, next_index, *to_next, n_left_to_next; - vlib_node_runtime_t * error_node = vlib_node_get_runtime(vm, ip4_frag_node.index); - from = vlib_frame_vector_args(frame); + vlib_node_runtime_t *error_node = + vlib_node_get_runtime (vm, ip4_frag_node.index); + from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; next_index = node->cached_next_index; u32 frag_sent = 0, small_packets = 0; u32 *buffer = 0; - while (n_left_from > 0) { - vlib_get_next_frame(vm, node, next_index, to_next, n_left_to_next); - - while (n_left_from > 0 && n_left_to_next > 0) { - u32 pi0, *frag_from, frag_left; - vlib_buffer_t *p0; - ip_frag_error_t error0; - ip4_frag_next_t next0; - - //Note: The packet is not enqueued now. - //It is instead put in a vector where other fragments - //will be put as well. - pi0 = from[0]; - from += 1; - n_left_from -= 1; - error0 = IP_FRAG_ERROR_NONE; - - p0 = vlib_get_buffer(vm, pi0); - ip4_frag_do_fragment(vm, pi0, &buffer, &error0); - - if (PREDICT_FALSE(p0->flags & VLIB_BUFFER_IS_TRACED)) { - ip_frag_trace_t *tr = vlib_add_trace(vm, node, p0, sizeof (*tr)); - tr->header_offset = vnet_buffer(p0)->ip_frag.header_offset; - tr->mtu = vnet_buffer(p0)->ip_frag.mtu; - tr->ipv6 = 0; - tr->n_fragments = vec_len(buffer); - tr->next = vnet_buffer(p0)->ip_frag.next_index; - } - - if (error0 == IP_FRAG_ERROR_DONT_FRAGMENT_SET) { - icmp4_error_set_vnet_buffer(p0, ICMP4_destination_unreachable, - ICMP4_destination_unreachable_fragmentation_needed_and_dont_fragment_set, - vnet_buffer(p0)->ip_frag.mtu); - vlib_buffer_advance(p0, vnet_buffer(p0)->ip_frag.header_offset); - next0 = IP4_FRAG_NEXT_ICMP_ERROR; - } else - next0 = (error0 == IP_FRAG_ERROR_NONE) ? vnet_buffer(p0)->ip_frag.next_index : IP4_FRAG_NEXT_DROP; - - if (error0 == IP_FRAG_ERROR_NONE) { - frag_sent += vec_len(buffer); - small_packets += (vec_len(buffer) == 1); - } else - vlib_error_count(vm, ip4_frag_node.index, error0, 1); - - //Send fragments that were added in the frame - frag_from = buffer; - frag_left = vec_len(buffer); - - while (frag_left > 0) { - while (frag_left > 0 && n_left_to_next > 0) { - u32 i; - i = to_next[0] = frag_from[0]; - frag_from += 1; - frag_left -= 1; - to_next += 1; - n_left_to_next -= 1; - - vlib_get_buffer(vm, i)->error = error_node->errors[error0]; - vlib_validate_buffer_enqueue_x1 (vm, node, next_index, - to_next, n_left_to_next, i, - next0); - } - vlib_put_next_frame(vm, node, next_index, n_left_to_next); - vlib_get_next_frame(vm, node, next_index, to_next, n_left_to_next); - } - vec_reset_length(buffer); + while (n_left_from > 0) + { + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + while (n_left_from > 0 && n_left_to_next > 0) + { + u32 pi0, *frag_from, frag_left; + vlib_buffer_t *p0; + ip_frag_error_t error0; + ip4_frag_next_t next0; + + //Note: The packet is not enqueued now. + //It is instead put in a vector where other fragments + //will be put as well. + pi0 = from[0]; + from += 1; + n_left_from -= 1; + error0 = IP_FRAG_ERROR_NONE; + + p0 = vlib_get_buffer (vm, pi0); + ip4_frag_do_fragment (vm, pi0, &buffer, &error0); + + if (PREDICT_FALSE (p0->flags & VLIB_BUFFER_IS_TRACED)) + { + ip_frag_trace_t *tr = + vlib_add_trace (vm, node, p0, sizeof (*tr)); + tr->header_offset = vnet_buffer (p0)->ip_frag.header_offset; + tr->mtu = vnet_buffer (p0)->ip_frag.mtu; + tr->ipv6 = 0; + tr->n_fragments = vec_len (buffer); + tr->next = vnet_buffer (p0)->ip_frag.next_index; + } + + if (error0 == IP_FRAG_ERROR_DONT_FRAGMENT_SET) + { + icmp4_error_set_vnet_buffer (p0, ICMP4_destination_unreachable, + ICMP4_destination_unreachable_fragmentation_needed_and_dont_fragment_set, + vnet_buffer (p0)->ip_frag.mtu); + vlib_buffer_advance (p0, + vnet_buffer (p0)->ip_frag.header_offset); + next0 = IP4_FRAG_NEXT_ICMP_ERROR; + } + else + next0 = + (error0 == + IP_FRAG_ERROR_NONE) ? vnet_buffer (p0)-> + ip_frag.next_index : IP4_FRAG_NEXT_DROP; + + if (error0 == IP_FRAG_ERROR_NONE) + { + frag_sent += vec_len (buffer); + small_packets += (vec_len (buffer) == 1); + } + else + vlib_error_count (vm, ip4_frag_node.index, error0, 1); + + //Send fragments that were added in the frame + frag_from = buffer; + frag_left = vec_len (buffer); + + while (frag_left > 0) + { + while (frag_left > 0 && n_left_to_next > 0) + { + u32 i; + i = to_next[0] = frag_from[0]; + frag_from += 1; + frag_left -= 1; + to_next += 1; + n_left_to_next -= 1; + + vlib_get_buffer (vm, i)->error = error_node->errors[error0]; + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, + to_next, n_left_to_next, i, + next0); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + vlib_get_next_frame (vm, node, next_index, to_next, + n_left_to_next); + } + vec_reset_length (buffer); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); } - vlib_put_next_frame(vm, node, next_index, n_left_to_next); - } - vec_free(buffer); + vec_free (buffer); - vlib_node_increment_counter(vm, ip4_frag_node.index, IP_FRAG_ERROR_FRAGMENT_SENT, frag_sent); - vlib_node_increment_counter(vm, ip4_frag_node.index, IP_FRAG_ERROR_SMALL_PACKET, small_packets); + vlib_node_increment_counter (vm, ip4_frag_node.index, + IP_FRAG_ERROR_FRAGMENT_SENT, frag_sent); + vlib_node_increment_counter (vm, ip4_frag_node.index, + IP_FRAG_ERROR_SMALL_PACKET, small_packets); return frame->n_vectors; } static void -ip6_frag_do_fragment(vlib_main_t *vm, u32 pi, u32 **buffer, ip_frag_error_t *error) +ip6_frag_do_fragment (vlib_main_t * vm, u32 pi, u32 ** buffer, + ip_frag_error_t * error) { vlib_buffer_t *p; ip6_header_t *ip6_hdr; ip6_frag_hdr_t *frag_hdr; u8 *payload, *next_header; - p = vlib_get_buffer(vm, pi); + p = vlib_get_buffer (vm, pi); //Parsing the IPv6 headers - ip6_hdr = vlib_buffer_get_current(p) + vnet_buffer(p)->ip_frag.header_offset; - payload = (u8 *)(ip6_hdr + 1); + ip6_hdr = + vlib_buffer_get_current (p) + vnet_buffer (p)->ip_frag.header_offset; + payload = (u8 *) (ip6_hdr + 1); next_header = &ip6_hdr->protocol; - if (*next_header == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS) { - next_header = payload; - payload += payload[1] * 8; - } - - if (*next_header == IP_PROTOCOL_IP6_DESTINATION_OPTIONS) { - next_header = payload; - payload += payload[1] * 8; - } - - if (*next_header == IP_PROTOCOL_IPV6_ROUTE) { - next_header = payload; - payload += payload[1] * 8; - } - - if (PREDICT_FALSE(payload >= (u8 *)vlib_buffer_get_current(p) + p->current_length)) { - //A malicious packet could set an extension header with a too big size - //and make us modify another vlib_buffer - *error = IP_FRAG_ERROR_MALFORMED; - return; - } + if (*next_header == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS) + { + next_header = payload; + payload += payload[1] * 8; + } + + if (*next_header == IP_PROTOCOL_IP6_DESTINATION_OPTIONS) + { + next_header = payload; + payload += payload[1] * 8; + } + + if (*next_header == IP_PROTOCOL_IPV6_ROUTE) + { + next_header = payload; + payload += payload[1] * 8; + } + + if (PREDICT_FALSE + (payload >= (u8 *) vlib_buffer_get_current (p) + p->current_length)) + { + //A malicious packet could set an extension header with a too big size + //and make us modify another vlib_buffer + *error = IP_FRAG_ERROR_MALFORMED; + return; + } u8 has_more; u16 initial_offset; - if (*next_header == IP_PROTOCOL_IPV6_FRAGMENTATION) { - //The fragmentation header is already there - frag_hdr = (ip6_frag_hdr_t *)payload; - has_more = ip6_frag_hdr_more(frag_hdr); - initial_offset = ip6_frag_hdr_offset(frag_hdr); - } else { - //Insert a fragmentation header in the packet - u8 nh = *next_header; - *next_header = IP_PROTOCOL_IPV6_FRAGMENTATION; - vlib_buffer_advance(p, -sizeof(*frag_hdr)); - u8 *start = vlib_buffer_get_current(p); - memmove(start, start + sizeof(*frag_hdr), payload - (start + sizeof(*frag_hdr))); - frag_hdr = (ip6_frag_hdr_t *)(payload - sizeof(*frag_hdr)); - frag_hdr->identification = ++running_fragment_id; - frag_hdr->next_hdr = nh; - frag_hdr->rsv = 0; - has_more = 0; - initial_offset = 0; - } - payload = (u8 *)(frag_hdr + 1); - - u16 headers_len = payload - (u8 *)vlib_buffer_get_current(p); - u16 max_payload = vnet_buffer(p)->ip_frag.mtu - headers_len; + if (*next_header == IP_PROTOCOL_IPV6_FRAGMENTATION) + { + //The fragmentation header is already there + frag_hdr = (ip6_frag_hdr_t *) payload; + has_more = ip6_frag_hdr_more (frag_hdr); + initial_offset = ip6_frag_hdr_offset (frag_hdr); + } + else + { + //Insert a fragmentation header in the packet + u8 nh = *next_header; + *next_header = IP_PROTOCOL_IPV6_FRAGMENTATION; + vlib_buffer_advance (p, -sizeof (*frag_hdr)); + u8 *start = vlib_buffer_get_current (p); + memmove (start, start + sizeof (*frag_hdr), + payload - (start + sizeof (*frag_hdr))); + frag_hdr = (ip6_frag_hdr_t *) (payload - sizeof (*frag_hdr)); + frag_hdr->identification = ++running_fragment_id; + frag_hdr->next_hdr = nh; + frag_hdr->rsv = 0; + has_more = 0; + initial_offset = 0; + } + payload = (u8 *) (frag_hdr + 1); + + u16 headers_len = payload - (u8 *) vlib_buffer_get_current (p); + u16 max_payload = vnet_buffer (p)->ip_frag.mtu - headers_len; u16 rem = p->current_length - headers_len; u16 ptr = 0; - if(max_payload < 8) { - *error = IP_FRAG_ERROR_CANT_FRAGMENT_HEADER; - return; - } - - while (rem) { - u32 bi; - vlib_buffer_t *b; - u16 len = (rem > max_payload)?(max_payload & ~0x7):rem; - rem -= len; - - if (ptr != 0) { - if (!vlib_buffer_alloc(vm, &bi, 1)) { - *error = IP_FRAG_ERROR_MEMORY; - return; - } - b = vlib_get_buffer(vm, bi); - vnet_buffer(b)->sw_if_index[VLIB_RX] = vnet_buffer(p)->sw_if_index[VLIB_RX]; - vnet_buffer(b)->sw_if_index[VLIB_TX] = vnet_buffer(p)->sw_if_index[VLIB_TX]; - clib_memcpy(vlib_buffer_get_current(b), vlib_buffer_get_current(p), headers_len); - clib_memcpy(vlib_buffer_get_current(b) + headers_len, payload + ptr, len); - frag_hdr = vlib_buffer_get_current(b) + headers_len - sizeof(*frag_hdr); - } else { - bi = pi; - b = vlib_get_buffer(vm, bi); - //frag_hdr already set here + if (max_payload < 8) + { + *error = IP_FRAG_ERROR_CANT_FRAGMENT_HEADER; + return; } - ip6_hdr = vlib_buffer_get_current(b) + vnet_buffer(p)->ip_frag.header_offset; - frag_hdr->fragment_offset_and_more = ip6_frag_hdr_offset_and_more(initial_offset + (ptr >> 3), (rem || has_more)); - b->current_length = headers_len + len; - ip6_hdr->payload_length = clib_host_to_net_u16(b->current_length - vnet_buffer(p)->ip_frag.header_offset - sizeof(*ip6_hdr)); - - if(vnet_buffer(p)->ip_frag.flags & IP_FRAG_FLAG_IP4_HEADER) { - //Encapsulating ipv4 header - ip4_header_t *encap_header4 = (ip4_header_t *)vlib_buffer_get_current(b); - encap_header4->length = clib_host_to_net_u16(b->current_length); - encap_header4->checksum = ip4_header_checksum(encap_header4); - } else if (vnet_buffer(p)->ip_frag.flags & IP_FRAG_FLAG_IP6_HEADER) { - //Encapsulating ipv6 header - ip6_header_t *encap_header6 = (ip6_header_t *)vlib_buffer_get_current(b); - encap_header6->payload_length = clib_host_to_net_u16(b->current_length - sizeof(*encap_header6)); + while (rem) + { + u32 bi; + vlib_buffer_t *b; + u16 len = (rem > max_payload) ? (max_payload & ~0x7) : rem; + rem -= len; + + if (ptr != 0) + { + if (!vlib_buffer_alloc (vm, &bi, 1)) + { + *error = IP_FRAG_ERROR_MEMORY; + return; + } + b = vlib_get_buffer (vm, bi); + vnet_buffer (b)->sw_if_index[VLIB_RX] = + vnet_buffer (p)->sw_if_index[VLIB_RX]; + vnet_buffer (b)->sw_if_index[VLIB_TX] = + vnet_buffer (p)->sw_if_index[VLIB_TX]; + clib_memcpy (vlib_buffer_get_current (b), + vlib_buffer_get_current (p), headers_len); + clib_memcpy (vlib_buffer_get_current (b) + headers_len, + payload + ptr, len); + frag_hdr = + vlib_buffer_get_current (b) + headers_len - sizeof (*frag_hdr); + } + else + { + bi = pi; + b = vlib_get_buffer (vm, bi); + //frag_hdr already set here + } + + ip6_hdr = + vlib_buffer_get_current (b) + vnet_buffer (p)->ip_frag.header_offset; + frag_hdr->fragment_offset_and_more = + ip6_frag_hdr_offset_and_more (initial_offset + (ptr >> 3), + (rem || has_more)); + b->current_length = headers_len + len; + ip6_hdr->payload_length = + clib_host_to_net_u16 (b->current_length - + vnet_buffer (p)->ip_frag.header_offset - + sizeof (*ip6_hdr)); + + if (vnet_buffer (p)->ip_frag.flags & IP_FRAG_FLAG_IP4_HEADER) + { + //Encapsulating ipv4 header + ip4_header_t *encap_header4 = + (ip4_header_t *) vlib_buffer_get_current (b); + encap_header4->length = clib_host_to_net_u16 (b->current_length); + encap_header4->checksum = ip4_header_checksum (encap_header4); + } + else if (vnet_buffer (p)->ip_frag.flags & IP_FRAG_FLAG_IP6_HEADER) + { + //Encapsulating ipv6 header + ip6_header_t *encap_header6 = + (ip6_header_t *) vlib_buffer_get_current (b); + encap_header6->payload_length = + clib_host_to_net_u16 (b->current_length - + sizeof (*encap_header6)); + } + + vec_add1 (*buffer, bi); + + ptr += len; } - - vec_add1(*buffer, bi); - - ptr += len; - } } static uword -ip6_frag (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) +ip6_frag (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { u32 n_left_from, *from, next_index, *to_next, n_left_to_next; - vlib_node_runtime_t * error_node = vlib_node_get_runtime (vm, ip6_frag_node.index); + vlib_node_runtime_t *error_node = + vlib_node_get_runtime (vm, ip6_frag_node.index); from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; next_index = node->cached_next_index; u32 frag_sent = 0, small_packets = 0; u32 *buffer = 0; - while (n_left_from > 0) { - vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); - - while (n_left_from > 0 && n_left_to_next > 0) { - u32 pi0, *frag_from, frag_left; - vlib_buffer_t * p0; - ip_frag_error_t error0; - ip6_frag_next_t next0; - - pi0 = from[0]; - from += 1; - n_left_from -= 1; - error0 = IP_FRAG_ERROR_NONE; - - p0 = vlib_get_buffer(vm, pi0); - ip6_frag_do_fragment(vm, pi0, &buffer, &error0); - - if (PREDICT_FALSE(p0->flags & VLIB_BUFFER_IS_TRACED)) { - ip_frag_trace_t *tr = vlib_add_trace(vm, node, p0, sizeof (*tr)); - tr->header_offset = vnet_buffer(p0)->ip_frag.header_offset; - tr->mtu = vnet_buffer(p0)->ip_frag.mtu; - tr->ipv6 = 1; - tr->n_fragments = vec_len(buffer); - tr->next = vnet_buffer(p0)->ip_frag.next_index; - } - - next0 = (error0 == IP_FRAG_ERROR_NONE) ? vnet_buffer(p0)->ip_frag.next_index : IP6_FRAG_NEXT_DROP; - frag_sent += vec_len(buffer); - small_packets += (vec_len(buffer) == 1); - - //Send fragments that were added in the frame - frag_from = buffer; - frag_left = vec_len(buffer); - while (frag_left > 0) { - while (frag_left > 0 && n_left_to_next > 0) { - u32 i; - i = to_next[0] = frag_from[0]; - frag_from += 1; - frag_left -= 1; - to_next += 1; - n_left_to_next -= 1; - - vlib_get_buffer(vm, i)->error = error_node->errors[error0]; - vlib_validate_buffer_enqueue_x1 (vm, node, next_index, - to_next, n_left_to_next, i, - next0); - } - vlib_put_next_frame(vm, node, next_index, n_left_to_next); - vlib_get_next_frame(vm, node, next_index, to_next, n_left_to_next); - } - vec_reset_length(buffer); + while (n_left_from > 0) + { + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + while (n_left_from > 0 && n_left_to_next > 0) + { + u32 pi0, *frag_from, frag_left; + vlib_buffer_t *p0; + ip_frag_error_t error0; + ip6_frag_next_t next0; + + pi0 = from[0]; + from += 1; + n_left_from -= 1; + error0 = IP_FRAG_ERROR_NONE; + + p0 = vlib_get_buffer (vm, pi0); + ip6_frag_do_fragment (vm, pi0, &buffer, &error0); + + if (PREDICT_FALSE (p0->flags & VLIB_BUFFER_IS_TRACED)) + { + ip_frag_trace_t *tr = + vlib_add_trace (vm, node, p0, sizeof (*tr)); + tr->header_offset = vnet_buffer (p0)->ip_frag.header_offset; + tr->mtu = vnet_buffer (p0)->ip_frag.mtu; + tr->ipv6 = 1; + tr->n_fragments = vec_len (buffer); + tr->next = vnet_buffer (p0)->ip_frag.next_index; + } + + next0 = + (error0 == + IP_FRAG_ERROR_NONE) ? vnet_buffer (p0)-> + ip_frag.next_index : IP6_FRAG_NEXT_DROP; + frag_sent += vec_len (buffer); + small_packets += (vec_len (buffer) == 1); + + //Send fragments that were added in the frame + frag_from = buffer; + frag_left = vec_len (buffer); + while (frag_left > 0) + { + while (frag_left > 0 && n_left_to_next > 0) + { + u32 i; + i = to_next[0] = frag_from[0]; + frag_from += 1; + frag_left -= 1; + to_next += 1; + n_left_to_next -= 1; + + vlib_get_buffer (vm, i)->error = error_node->errors[error0]; + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, + to_next, n_left_to_next, i, + next0); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + vlib_get_next_frame (vm, node, next_index, to_next, + n_left_to_next); + } + vec_reset_length (buffer); + } + vlib_put_next_frame (vm, node, next_index, n_left_to_next); } - vlib_put_next_frame(vm, node, next_index, n_left_to_next); - } - vec_free(buffer); - vlib_node_increment_counter(vm, ip6_frag_node.index, IP_FRAG_ERROR_FRAGMENT_SENT, frag_sent); - vlib_node_increment_counter(vm, ip6_frag_node.index, IP_FRAG_ERROR_SMALL_PACKET, small_packets); + vec_free (buffer); + vlib_node_increment_counter (vm, ip6_frag_node.index, + IP_FRAG_ERROR_FRAGMENT_SENT, frag_sent); + vlib_node_increment_counter (vm, ip6_frag_node.index, + IP_FRAG_ERROR_SMALL_PACKET, small_packets); return frame->n_vectors; } -static char * ip4_frag_error_strings[] = { +static char *ip4_frag_error_strings[] = { #define _(sym,string) string, foreach_ip_frag_error #undef _ }; +/* *INDENT-OFF* */ VLIB_REGISTER_NODE (ip4_frag_node) = { .function = ip4_frag, .name = IP4_FRAG_NODE_NAME, @@ -457,7 +550,9 @@ VLIB_REGISTER_NODE (ip4_frag_node) = { [IP4_FRAG_NEXT_DROP] = "error-drop" }, }; +/* *INDENT-ON* */ +/* *INDENT-OFF* */ VLIB_REGISTER_NODE (ip6_frag_node) = { .function = ip6_frag, .name = IP6_FRAG_NODE_NAME, @@ -475,3 +570,12 @@ VLIB_REGISTER_NODE (ip6_frag_node) = { [IP6_FRAG_NEXT_DROP] = "error-drop" }, }; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip_frag.h b/vnet/vnet/ip/ip_frag.h index 118acf86bf4..348f5a2fbc6 100644 --- a/vnet/vnet/ip/ip_frag.h +++ b/vnet/vnet/ip/ip_frag.h @@ -37,8 +37,8 @@ #include <vnet/vnet.h> -#define IP_FRAG_FLAG_IP4_HEADER 0x01 //Encapsulating IPv4 header -#define IP_FRAG_FLAG_IP6_HEADER 0x02 //Encapsulating IPv6 header +#define IP_FRAG_FLAG_IP4_HEADER 0x01 //Encapsulating IPv4 header +#define IP_FRAG_FLAG_IP6_HEADER 0x02 //Encapsulating IPv6 header #define IP4_FRAG_NODE_NAME "ip4-frag" #define IP6_FRAG_NODE_NAME "ip6-frag" @@ -46,7 +46,8 @@ extern vlib_node_registration_t ip4_frag_node; extern vlib_node_registration_t ip6_frag_node; -typedef enum { +typedef enum +{ IP4_FRAG_NEXT_IP4_LOOKUP, IP4_FRAG_NEXT_IP6_LOOKUP, IP4_FRAG_NEXT_ICMP_ERROR, @@ -54,7 +55,8 @@ typedef enum { IP4_FRAG_N_NEXT } ip4_frag_next_t; -typedef enum { +typedef enum +{ IP6_FRAG_NEXT_IP4_LOOKUP, IP6_FRAG_NEXT_IP6_LOOKUP, IP6_FRAG_NEXT_DROP, @@ -72,13 +74,23 @@ typedef enum { _(MEMORY, "could not allocate buffer") \ _(UNKNOWN, "unknown error") -typedef enum { +typedef enum +{ #define _(sym,str) IP_FRAG_ERROR_##sym, - foreach_ip_frag_error + foreach_ip_frag_error #undef _ - IP_FRAG_N_ERROR, - } ip_frag_error_t; + IP_FRAG_N_ERROR, +} ip_frag_error_t; -void ip_frag_set_vnet_buffer(vlib_buffer_t *b, u16 offset, u16 mtu, u8 next_index, u8 flags); +void ip_frag_set_vnet_buffer (vlib_buffer_t * b, u16 offset, u16 mtu, + u8 next_index, u8 flags); #endif /* ifndef IP_FRAG_H */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip_init.c b/vnet/vnet/ip/ip_init.c index d87a92efdc6..f7635b35d0e 100644 --- a/vnet/vnet/ip/ip_init.c +++ b/vnet/vnet/ip/ip_init.c @@ -44,13 +44,13 @@ ip_main_t ip_main; clib_error_t * ip_main_init (vlib_main_t * vm) { - ip_main_t * im = &ip_main; - clib_error_t * error = 0; + ip_main_t *im = &ip_main; + clib_error_t *error = 0; memset (im, 0, sizeof (im[0])); { - ip_protocol_info_t * pi; + ip_protocol_info_t *pi; u32 i; #define ip_protocol(n,s) \ @@ -75,20 +75,18 @@ do { \ } { - tcp_udp_port_info_t * pi; + tcp_udp_port_info_t *pi; u32 i; - static char * port_names[] = - { + static char *port_names[] = { #define ip_port(s,n) #s, #include "ports.def" #undef ip_port - }; - static u16 ports[] = - { + }; + static u16 ports[] = { #define ip_port(s,n) n, #include "ports.def" #undef ip_port - }; + }; vec_resize (im->port_infos, ARRAY_LEN (port_names)); im->port_info_by_name = hash_create_string (0, sizeof (uword)); @@ -144,3 +142,11 @@ do { \ VLIB_INIT_FUNCTION (ip_main_init); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip_input_acl.c b/vnet/vnet/ip/ip_input_acl.c index 93a580ce47c..b0b52ab11c3 100644 --- a/vnet/vnet/ip/ip_input_acl.c +++ b/vnet/vnet/ip/ip_input_acl.c @@ -16,7 +16,8 @@ #include <vnet/classify/vnet_classify.h> #include <vnet/classify/input_acl.h> -typedef struct { +typedef struct +{ u32 sw_if_index; u32 next_index; u32 table_index; @@ -24,14 +25,15 @@ typedef struct { } ip_inacl_trace_t; /* packet trace format function */ -static u8 * format_ip_inacl_trace (u8 * s, va_list * args) +static u8 * +format_ip_inacl_trace (u8 * s, va_list * args) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); - ip_inacl_trace_t * t = va_arg (*args, ip_inacl_trace_t *); + ip_inacl_trace_t *t = va_arg (*args, ip_inacl_trace_t *); s = format (s, "INACL: sw_if_index %d, next_index %d, table %d, offset %d", - t->sw_if_index, t->next_index, t->table_index, t->offset); + t->sw_if_index, t->next_index, t->table_index, t->offset); return s; } @@ -43,14 +45,15 @@ _(MISS, "input ACL misses") \ _(HIT, "input ACL hits") \ _(CHAIN_HIT, "input ACL hits after chain walk") -typedef enum { +typedef enum +{ #define _(sym,str) IP_INACL_ERROR_##sym, foreach_ip_inacl_error #undef _ - IP_INACL_N_ERROR, + IP_INACL_N_ERROR, } ip_inacl_error_t; -static char * ip_inacl_error_strings[] = { +static char *ip_inacl_error_strings[] = { #define _(sym,string) string, foreach_ip_inacl_error #undef _ @@ -58,19 +61,18 @@ static char * ip_inacl_error_strings[] = { static inline uword ip_inacl_inline (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame, int is_ip4) + vlib_node_runtime_t * node, vlib_frame_t * frame, int is_ip4) { - u32 n_left_from, * from, * to_next; + u32 n_left_from, *from, *to_next; acl_next_index_t next_index; - input_acl_main_t * am = &input_acl_main; - vnet_classify_main_t * vcm = am->vnet_classify_main; + input_acl_main_t *am = &input_acl_main; + vnet_classify_main_t *vcm = am->vnet_classify_main; f64 now = vlib_time_now (vm); u32 hits = 0; u32 misses = 0; u32 chain_hits = 0; input_acl_table_id_t tid; - vlib_node_runtime_t * error_node; + vlib_node_runtime_t *error_node; u32 n_next_nodes; n_next_nodes = node->n_next_nodes; @@ -93,24 +95,24 @@ ip_inacl_inline (vlib_main_t * vm, while (n_left_from > 2) { - vlib_buffer_t * b0, * b1; + vlib_buffer_t *b0, *b1; u32 bi0, bi1; - u8 * h0, * h1; + u8 *h0, *h1; u32 sw_if_index0, sw_if_index1; u32 table_index0, table_index1; - vnet_classify_table_t * t0, * t1; + vnet_classify_table_t *t0, *t1; /* prefetch next iteration */ { - vlib_buffer_t * p1, * p2; + vlib_buffer_t *p1, *p2; - p1 = vlib_get_buffer (vm, from[1]); - p2 = vlib_get_buffer (vm, from[2]); + p1 = vlib_get_buffer (vm, from[1]); + p2 = vlib_get_buffer (vm, from[2]); - vlib_prefetch_buffer_header (p1, STORE); - CLIB_PREFETCH (p1->data, CLIB_CACHE_LINE_BYTES, STORE); - vlib_prefetch_buffer_header (p2, STORE); - CLIB_PREFETCH (p2->data, CLIB_CACHE_LINE_BYTES, STORE); + vlib_prefetch_buffer_header (p1, STORE); + CLIB_PREFETCH (p1->data, CLIB_CACHE_LINE_BYTES, STORE); + vlib_prefetch_buffer_header (p2, STORE); + CLIB_PREFETCH (p2->data, CLIB_CACHE_LINE_BYTES, STORE); } bi0 = from[0]; @@ -120,38 +122,40 @@ ip_inacl_inline (vlib_main_t * vm, b1 = vlib_get_buffer (vm, bi1); sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; - table_index0 = am->classify_table_index_by_sw_if_index[tid][sw_if_index0]; + table_index0 = + am->classify_table_index_by_sw_if_index[tid][sw_if_index0]; sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX]; - table_index1 = am->classify_table_index_by_sw_if_index[tid][sw_if_index1]; + table_index1 = + am->classify_table_index_by_sw_if_index[tid][sw_if_index1]; t0 = pool_elt_at_index (vcm->tables, table_index0); t1 = pool_elt_at_index (vcm->tables, table_index1); if (t0->current_data_flag == CLASSIFY_FLAG_USE_CURR_DATA) - h0 = (void *)vlib_buffer_get_current (b0) + t0->current_data_offset; + h0 = (void *) vlib_buffer_get_current (b0) + t0->current_data_offset; else - h0 = b0->data; + h0 = b0->data; - vnet_buffer(b0)->l2_classify.hash = - vnet_classify_hash_packet (t0, (u8 *) h0); + vnet_buffer (b0)->l2_classify.hash = + vnet_classify_hash_packet (t0, (u8 *) h0); - vnet_classify_prefetch_bucket (t0, vnet_buffer(b0)->l2_classify.hash); + vnet_classify_prefetch_bucket (t0, vnet_buffer (b0)->l2_classify.hash); if (t1->current_data_flag == CLASSIFY_FLAG_USE_CURR_DATA) - h1 = (void *)vlib_buffer_get_current (b1) + t1->current_data_offset; + h1 = (void *) vlib_buffer_get_current (b1) + t1->current_data_offset; else - h1 = b1->data; + h1 = b1->data; - vnet_buffer(b1)->l2_classify.hash = - vnet_classify_hash_packet (t1, (u8 *) h1); + vnet_buffer (b1)->l2_classify.hash = + vnet_classify_hash_packet (t1, (u8 *) h1); - vnet_classify_prefetch_bucket (t1, vnet_buffer(b1)->l2_classify.hash); + vnet_classify_prefetch_bucket (t1, vnet_buffer (b1)->l2_classify.hash); - vnet_buffer(b0)->l2_classify.table_index = table_index0; + vnet_buffer (b0)->l2_classify.table_index = table_index0; - vnet_buffer(b1)->l2_classify.table_index = table_index1; + vnet_buffer (b1)->l2_classify.table_index = table_index1; from += 2; n_left_from -= 2; @@ -159,31 +163,32 @@ ip_inacl_inline (vlib_main_t * vm, while (n_left_from > 0) { - vlib_buffer_t * b0; + vlib_buffer_t *b0; u32 bi0; - u8 * h0; + u8 *h0; u32 sw_if_index0; u32 table_index0; - vnet_classify_table_t * t0; + vnet_classify_table_t *t0; bi0 = from[0]; b0 = vlib_get_buffer (vm, bi0); sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; - table_index0 = am->classify_table_index_by_sw_if_index[tid][sw_if_index0]; + table_index0 = + am->classify_table_index_by_sw_if_index[tid][sw_if_index0]; t0 = pool_elt_at_index (vcm->tables, table_index0); if (t0->current_data_flag == CLASSIFY_FLAG_USE_CURR_DATA) - h0 = (void *)vlib_buffer_get_current (b0) + t0->current_data_offset; + h0 = (void *) vlib_buffer_get_current (b0) + t0->current_data_offset; else - h0 = b0->data; + h0 = b0->data; - vnet_buffer(b0)->l2_classify.hash = - vnet_classify_hash_packet (t0, (u8 *) h0); + vnet_buffer (b0)->l2_classify.hash = + vnet_classify_hash_packet (t0, (u8 *) h0); - vnet_buffer(b0)->l2_classify.table_index = table_index0; - vnet_classify_prefetch_bucket (t0, vnet_buffer(b0)->l2_classify.hash); + vnet_buffer (b0)->l2_classify.table_index = table_index0; + vnet_classify_prefetch_bucket (t0, vnet_buffer (b0)->l2_classify.hash); from++; n_left_from--; @@ -197,194 +202,194 @@ ip_inacl_inline (vlib_main_t * vm, { u32 n_left_to_next; - vlib_get_next_frame (vm, node, next_index, - to_next, n_left_to_next); + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); /* Not enough load/store slots to dual loop... */ while (n_left_from > 0 && n_left_to_next > 0) - { - u32 bi0; - vlib_buffer_t * b0; - u32 next0 = ACL_NEXT_INDEX_DENY; - u32 table_index0; - vnet_classify_table_t * t0; - vnet_classify_entry_t * e0; - u64 hash0; - u8 * h0; - u8 error0; - - /* Stride 3 seems to work best */ - if (PREDICT_TRUE (n_left_from > 3)) - { - vlib_buffer_t * p1 = vlib_get_buffer(vm, from[3]); - vnet_classify_table_t * tp1; - u32 table_index1; - u64 phash1; - - table_index1 = vnet_buffer(p1)->l2_classify.table_index; - - if (PREDICT_TRUE (table_index1 != ~0)) - { - tp1 = pool_elt_at_index (vcm->tables, table_index1); - phash1 = vnet_buffer(p1)->l2_classify.hash; - vnet_classify_prefetch_entry (tp1, phash1); - } - } - - /* speculatively enqueue b0 to the current next frame */ - bi0 = from[0]; - to_next[0] = bi0; - from += 1; - to_next += 1; - n_left_from -= 1; - n_left_to_next -= 1; - - b0 = vlib_get_buffer (vm, bi0); - table_index0 = vnet_buffer(b0)->l2_classify.table_index; - e0 = 0; - t0 = 0; - vnet_get_config_data (am->vnet_config_main[tid], - &b0->current_config_index, - &next0, - /* # bytes of config data */ 0); - - vnet_buffer(b0)->l2_classify.opaque_index = ~0; - - if (PREDICT_TRUE(table_index0 != ~0)) - { - hash0 = vnet_buffer(b0)->l2_classify.hash; - t0 = pool_elt_at_index (vcm->tables, table_index0); - - if (t0->current_data_flag == CLASSIFY_FLAG_USE_CURR_DATA) - h0 = (void *)vlib_buffer_get_current (b0) + t0->current_data_offset; - else - h0 = b0->data; - - e0 = vnet_classify_find_entry (t0, (u8 *) h0, hash0, - now); - if (e0) - { - vnet_buffer(b0)->l2_classify.opaque_index - = e0->opaque_index; - vlib_buffer_advance (b0, e0->advance); - - next0 = (e0->next_index < n_next_nodes)? - e0->next_index:next0; - - hits++; - - if (is_ip4) - error0 = (next0 == ACL_NEXT_INDEX_DENY)? - IP4_ERROR_INACL_SESSION_DENY:IP4_ERROR_NONE; - else - error0 = (next0 == ACL_NEXT_INDEX_DENY)? - IP6_ERROR_INACL_SESSION_DENY:IP6_ERROR_NONE; - b0->error = error_node->errors[error0]; - - if (e0->action == CLASSIFY_ACTION_SET_IP4_FIB_INDEX || - e0->action == CLASSIFY_ACTION_SET_IP6_FIB_INDEX) - vnet_buffer (b0)->sw_if_index[VLIB_TX] = e0->metadata; - } - else - { - while (1) - { - if (PREDICT_TRUE(t0->next_table_index != ~0)) - t0 = pool_elt_at_index (vcm->tables, - t0->next_table_index); - else - { - next0 = (t0->miss_next_index < n_next_nodes)? - t0->miss_next_index:next0; - - misses++; - - if (is_ip4) - error0 = (next0 == ACL_NEXT_INDEX_DENY)? - IP4_ERROR_INACL_TABLE_MISS:IP4_ERROR_NONE; - else - error0 = (next0 == ACL_NEXT_INDEX_DENY)? - IP6_ERROR_INACL_TABLE_MISS:IP6_ERROR_NONE; - b0->error = error_node->errors[error0]; - break; - } - - if (t0->current_data_flag == CLASSIFY_FLAG_USE_CURR_DATA) - h0 = (void *)vlib_buffer_get_current (b0) + t0->current_data_offset; - else - h0 = b0->data; - - hash0 = vnet_classify_hash_packet (t0, (u8 *) h0); - e0 = vnet_classify_find_entry - (t0, (u8 *) h0, hash0, now); - if (e0) - { - vnet_buffer(b0)->l2_classify.opaque_index - = e0->opaque_index; - vlib_buffer_advance (b0, e0->advance); - next0 = (e0->next_index < n_next_nodes)? - e0->next_index:next0; - hits++; - chain_hits++; - - if (is_ip4) - error0 = (next0 == ACL_NEXT_INDEX_DENY)? - IP4_ERROR_INACL_SESSION_DENY:IP4_ERROR_NONE; - else - error0 = (next0 == ACL_NEXT_INDEX_DENY)? - IP6_ERROR_INACL_SESSION_DENY:IP6_ERROR_NONE; - b0->error = error_node->errors[error0]; - - if (e0->action == CLASSIFY_ACTION_SET_IP4_FIB_INDEX || - e0->action == CLASSIFY_ACTION_SET_IP6_FIB_INDEX) - vnet_buffer (b0)->sw_if_index[VLIB_TX] = e0->metadata; - break; - } - } - } - } - - if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE) - && (b0->flags & VLIB_BUFFER_IS_TRACED))) - { - ip_inacl_trace_t *t = - vlib_add_trace (vm, node, b0, sizeof (*t)); - t->sw_if_index = vnet_buffer(b0)->sw_if_index[VLIB_RX]; - t->next_index = next0; - t->table_index = t0 ? t0 - vcm->tables : ~0; - t->offset = (e0 && t0) ? vnet_classify_get_offset (t0, e0): ~0; - } - - /* verify speculative enqueue, maybe switch current next frame */ - vlib_validate_buffer_enqueue_x1 (vm, node, next_index, - to_next, n_left_to_next, - bi0, next0); - } + { + u32 bi0; + vlib_buffer_t *b0; + u32 next0 = ACL_NEXT_INDEX_DENY; + u32 table_index0; + vnet_classify_table_t *t0; + vnet_classify_entry_t *e0; + u64 hash0; + u8 *h0; + u8 error0; + + /* Stride 3 seems to work best */ + if (PREDICT_TRUE (n_left_from > 3)) + { + vlib_buffer_t *p1 = vlib_get_buffer (vm, from[3]); + vnet_classify_table_t *tp1; + u32 table_index1; + u64 phash1; + + table_index1 = vnet_buffer (p1)->l2_classify.table_index; + + if (PREDICT_TRUE (table_index1 != ~0)) + { + tp1 = pool_elt_at_index (vcm->tables, table_index1); + phash1 = vnet_buffer (p1)->l2_classify.hash; + vnet_classify_prefetch_entry (tp1, phash1); + } + } + + /* speculatively enqueue b0 to the current next frame */ + bi0 = from[0]; + to_next[0] = bi0; + from += 1; + to_next += 1; + n_left_from -= 1; + n_left_to_next -= 1; + + b0 = vlib_get_buffer (vm, bi0); + table_index0 = vnet_buffer (b0)->l2_classify.table_index; + e0 = 0; + t0 = 0; + vnet_get_config_data (am->vnet_config_main[tid], + &b0->current_config_index, &next0, + /* # bytes of config data */ 0); + + vnet_buffer (b0)->l2_classify.opaque_index = ~0; + + if (PREDICT_TRUE (table_index0 != ~0)) + { + hash0 = vnet_buffer (b0)->l2_classify.hash; + t0 = pool_elt_at_index (vcm->tables, table_index0); + + if (t0->current_data_flag == CLASSIFY_FLAG_USE_CURR_DATA) + h0 = + (void *) vlib_buffer_get_current (b0) + + t0->current_data_offset; + else + h0 = b0->data; + + e0 = vnet_classify_find_entry (t0, (u8 *) h0, hash0, now); + if (e0) + { + vnet_buffer (b0)->l2_classify.opaque_index + = e0->opaque_index; + vlib_buffer_advance (b0, e0->advance); + + next0 = (e0->next_index < n_next_nodes) ? + e0->next_index : next0; + + hits++; + + if (is_ip4) + error0 = (next0 == ACL_NEXT_INDEX_DENY) ? + IP4_ERROR_INACL_SESSION_DENY : IP4_ERROR_NONE; + else + error0 = (next0 == ACL_NEXT_INDEX_DENY) ? + IP6_ERROR_INACL_SESSION_DENY : IP6_ERROR_NONE; + b0->error = error_node->errors[error0]; + + if (e0->action == CLASSIFY_ACTION_SET_IP4_FIB_INDEX || + e0->action == CLASSIFY_ACTION_SET_IP6_FIB_INDEX) + vnet_buffer (b0)->sw_if_index[VLIB_TX] = e0->metadata; + } + else + { + while (1) + { + if (PREDICT_TRUE (t0->next_table_index != ~0)) + t0 = pool_elt_at_index (vcm->tables, + t0->next_table_index); + else + { + next0 = (t0->miss_next_index < n_next_nodes) ? + t0->miss_next_index : next0; + + misses++; + + if (is_ip4) + error0 = (next0 == ACL_NEXT_INDEX_DENY) ? + IP4_ERROR_INACL_TABLE_MISS : IP4_ERROR_NONE; + else + error0 = (next0 == ACL_NEXT_INDEX_DENY) ? + IP6_ERROR_INACL_TABLE_MISS : IP6_ERROR_NONE; + b0->error = error_node->errors[error0]; + break; + } + + if (t0->current_data_flag == + CLASSIFY_FLAG_USE_CURR_DATA) + h0 = + (void *) vlib_buffer_get_current (b0) + + t0->current_data_offset; + else + h0 = b0->data; + + hash0 = vnet_classify_hash_packet (t0, (u8 *) h0); + e0 = vnet_classify_find_entry + (t0, (u8 *) h0, hash0, now); + if (e0) + { + vnet_buffer (b0)->l2_classify.opaque_index + = e0->opaque_index; + vlib_buffer_advance (b0, e0->advance); + next0 = (e0->next_index < n_next_nodes) ? + e0->next_index : next0; + hits++; + chain_hits++; + + if (is_ip4) + error0 = (next0 == ACL_NEXT_INDEX_DENY) ? + IP4_ERROR_INACL_SESSION_DENY : IP4_ERROR_NONE; + else + error0 = (next0 == ACL_NEXT_INDEX_DENY) ? + IP6_ERROR_INACL_SESSION_DENY : IP6_ERROR_NONE; + b0->error = error_node->errors[error0]; + + if (e0->action == CLASSIFY_ACTION_SET_IP4_FIB_INDEX + || e0->action == + CLASSIFY_ACTION_SET_IP6_FIB_INDEX) + vnet_buffer (b0)->sw_if_index[VLIB_TX] = + e0->metadata; + break; + } + } + } + } + + if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) + && (b0->flags & VLIB_BUFFER_IS_TRACED))) + { + ip_inacl_trace_t *t = + vlib_add_trace (vm, node, b0, sizeof (*t)); + t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX]; + t->next_index = next0; + t->table_index = t0 ? t0 - vcm->tables : ~0; + t->offset = (e0 && t0) ? vnet_classify_get_offset (t0, e0) : ~0; + } + + /* verify speculative enqueue, maybe switch current next frame */ + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, + to_next, n_left_to_next, + bi0, next0); + } vlib_put_next_frame (vm, node, next_index, n_left_to_next); } vlib_node_increment_counter (vm, node->node_index, - IP_INACL_ERROR_MISS, - misses); + IP_INACL_ERROR_MISS, misses); vlib_node_increment_counter (vm, node->node_index, - IP_INACL_ERROR_HIT, - hits); + IP_INACL_ERROR_HIT, hits); vlib_node_increment_counter (vm, node->node_index, - IP_INACL_ERROR_CHAIN_HIT, - chain_hits); + IP_INACL_ERROR_CHAIN_HIT, chain_hits); return frame->n_vectors; } static uword -ip4_inacl (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) +ip4_inacl (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { - return ip_inacl_inline (vm, node, frame, 1 /* is_ip4 */); + return ip_inacl_inline (vm, node, frame, 1 /* is_ip4 */ ); } +/* *INDENT-OFF* */ VLIB_REGISTER_NODE (ip4_inacl_node) = { .function = ip4_inacl, .name = "ip4-inacl", @@ -398,18 +403,18 @@ VLIB_REGISTER_NODE (ip4_inacl_node) = { [ACL_NEXT_INDEX_DENY] = "error-drop", }, }; +/* *INDENT-ON* */ -VLIB_NODE_FUNCTION_MULTIARCH (ip4_inacl_node, ip4_inacl) +VLIB_NODE_FUNCTION_MULTIARCH (ip4_inacl_node, ip4_inacl); static uword -ip6_inacl (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) +ip6_inacl (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { - return ip_inacl_inline (vm, node, frame, 0 /* is_ip4 */); + return ip_inacl_inline (vm, node, frame, 0 /* is_ip4 */ ); } +/* *INDENT-OFF* */ VLIB_REGISTER_NODE (ip6_inacl_node) = { .function = ip6_inacl, .name = "ip6-inacl", @@ -423,8 +428,9 @@ VLIB_REGISTER_NODE (ip6_inacl_node) = { [ACL_NEXT_INDEX_DENY] = "error-drop", }, }; +/* *INDENT-ON* */ -VLIB_NODE_FUNCTION_MULTIARCH (ip6_inacl_node, ip6_inacl) +VLIB_NODE_FUNCTION_MULTIARCH (ip6_inacl_node, ip6_inacl); static clib_error_t * ip_inacl_init (vlib_main_t * vm) @@ -434,3 +440,11 @@ ip_inacl_init (vlib_main_t * vm) VLIB_INIT_FUNCTION (ip_inacl_init); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ip_packet.h b/vnet/vnet/ip/ip_packet.h index 84b125818e0..d3f3de771bc 100644 --- a/vnet/vnet/ip/ip_packet.h +++ b/vnet/vnet/ip/ip_packet.h @@ -43,21 +43,24 @@ #include <vppinfra/byte_order.h> #include <vppinfra/error.h> -typedef enum ip_protocol { +typedef enum ip_protocol +{ #define ip_protocol(n,s) IP_PROTOCOL_##s = n, #include "protocols.def" #undef ip_protocol } ip_protocol_t; /* TCP/UDP ports. */ -typedef enum { +typedef enum +{ #define ip_port(s,n) IP_PORT_##s = n, #include "ports.def" #undef ip_port } ip_port_t; /* Classifies protocols into UDP, ICMP or other. */ -typedef enum { +typedef enum +{ IP_BUILTIN_PROTOCOL_UDP, IP_BUILTIN_PROTOCOL_ICMP, IP_BUILTIN_PROTOCOL_UNKNOWN, @@ -74,7 +77,8 @@ typedef enum { _ (102, hsrp) \ _ (22, igmp_v3) -typedef enum { +typedef enum +{ #define _(n,f) IP_MULTICAST_GROUP_##f = n, foreach_ip_builtin_multicast_group #undef _ @@ -111,7 +115,9 @@ ip_csum_add_even (ip_csum_t c, ip_csum_t x) /* Update checksum changing field at even byte offset from 0 -> x. */ always_inline ip_csum_t ip_csum_sub_even (ip_csum_t c, ip_csum_t x) -{ return ip_csum_with_carry (c, x); } +{ + return ip_csum_with_carry (c, x); +} always_inline ip_csum_t ip_csum_update_inline (ip_csum_t sum, ip_csum_t old, ip_csum_t new, @@ -135,7 +141,8 @@ ip_csum_update_inline (ip_csum_t sum, ip_csum_t old, ip_csum_t new, STRUCT_OFFSET_OF (type, field), \ STRUCT_SIZE_OF (type, field)) -always_inline u16 ip_csum_fold (ip_csum_t c) +always_inline u16 +ip_csum_fold (ip_csum_t c) { /* Reduce to 16 bits. */ #if uword_bits == 64 @@ -150,15 +157,24 @@ always_inline u16 ip_csum_fold (ip_csum_t c) } /* Copy data and checksum at the same time. */ -ip_csum_t ip_csum_and_memcpy (ip_csum_t sum, void * dst, void * src, uword n_bytes); +ip_csum_t ip_csum_and_memcpy (ip_csum_t sum, void *dst, void *src, + uword n_bytes); always_inline u16 -ip_csum_and_memcpy_fold (ip_csum_t sum, void * dst) +ip_csum_and_memcpy_fold (ip_csum_t sum, void *dst) { return ip_csum_fold (sum); } /* Checksum routine. */ -ip_csum_t ip_incremental_checksum (ip_csum_t sum, void * data, uword n_bytes); +ip_csum_t ip_incremental_checksum (ip_csum_t sum, void *data, uword n_bytes); #endif /* included_ip_packet_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/lookup.c b/vnet/vnet/ip/lookup.c index 1a32b4a6467..126deef7dd0 100644 --- a/vnet/vnet/ip/lookup.c +++ b/vnet/vnet/ip/lookup.c @@ -58,56 +58,62 @@ clib_error_t * ip_interface_address_add_del (ip_lookup_main_t * lm, u32 sw_if_index, - void * addr_fib, + void *addr_fib, u32 address_length, - u32 is_del, - u32 * result_if_address_index) + u32 is_del, u32 * result_if_address_index) { - vnet_main_t * vnm = vnet_get_main(); - ip_interface_address_t * a, * prev, * next; - uword * p = mhash_get (&lm->address_to_if_address_index, addr_fib); + vnet_main_t *vnm = vnet_get_main (); + ip_interface_address_t *a, *prev, *next; + uword *p = mhash_get (&lm->address_to_if_address_index, addr_fib); - vec_validate_init_empty (lm->if_address_pool_index_by_sw_if_index, sw_if_index, ~0); + vec_validate_init_empty (lm->if_address_pool_index_by_sw_if_index, + sw_if_index, ~0); a = p ? pool_elt_at_index (lm->if_address_pool, p[0]) : 0; /* Verify given length. */ if ((a && (address_length != a->address_length)) || (address_length == 0)) { vnm->api_errno = VNET_API_ERROR_ADDRESS_LENGTH_MISMATCH; - return clib_error_create - ( "%U wrong length (expected %d) for interface %U", - lm->format_address_and_length, addr_fib, - address_length, a? a->address_length : -1, - format_vnet_sw_if_index_name, vnm, sw_if_index); + return clib_error_create + ("%U wrong length (expected %d) for interface %U", + lm->format_address_and_length, addr_fib, + address_length, a ? a->address_length : -1, + format_vnet_sw_if_index_name, vnm, sw_if_index); } if (is_del) { - if (!a) - { - vnet_sw_interface_t * si = vnet_get_sw_interface (vnm, sw_if_index); - vnm->api_errno = VNET_API_ERROR_ADDRESS_NOT_FOUND_FOR_INTERFACE; - return clib_error_create ("%U not found for interface %U", - lm->format_address_and_length, - addr_fib, address_length, - format_vnet_sw_interface_name, vnm, si); - } + if (!a) + { + vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index); + vnm->api_errno = VNET_API_ERROR_ADDRESS_NOT_FOUND_FOR_INTERFACE; + return clib_error_create ("%U not found for interface %U", + lm->format_address_and_length, + addr_fib, address_length, + format_vnet_sw_interface_name, vnm, si); + } if (a->prev_this_sw_interface != ~0) { - prev = pool_elt_at_index (lm->if_address_pool, a->prev_this_sw_interface); + prev = + pool_elt_at_index (lm->if_address_pool, + a->prev_this_sw_interface); prev->next_this_sw_interface = a->next_this_sw_interface; } if (a->next_this_sw_interface != ~0) { - next = pool_elt_at_index (lm->if_address_pool, a->next_this_sw_interface); + next = + pool_elt_at_index (lm->if_address_pool, + a->next_this_sw_interface); next->prev_this_sw_interface = a->prev_this_sw_interface; - if(a->prev_this_sw_interface == ~0) - lm->if_address_pool_index_by_sw_if_index[sw_if_index] = a->next_this_sw_interface; + if (a->prev_this_sw_interface == ~0) + lm->if_address_pool_index_by_sw_if_index[sw_if_index] = + a->next_this_sw_interface; } - if ((a->next_this_sw_interface == ~0) && (a->prev_this_sw_interface == ~0)) + if ((a->next_this_sw_interface == ~0) + && (a->prev_this_sw_interface == ~0)) lm->if_address_pool_index_by_sw_if_index[sw_if_index] = ~0; mhash_unset (&lm->address_to_if_address_index, addr_fib, @@ -118,11 +124,11 @@ ip_interface_address_add_del (ip_lookup_main_t * lm, *result_if_address_index = ~0; } - else if (! a) + else if (!a) { - u32 pi; /* previous index */ - u32 ai; - u32 hi; /* head index */ + u32 pi; /* previous index */ + u32 ai; + u32 hi; /* head index */ pool_get (lm->if_address_pool, a); memset (a, ~0, sizeof (a[0])); @@ -130,12 +136,12 @@ ip_interface_address_add_del (ip_lookup_main_t * lm, hi = pi = lm->if_address_pool_index_by_sw_if_index[sw_if_index]; prev = 0; - while (pi != (u32)~0) - { - prev = pool_elt_at_index(lm->if_address_pool, pi); - pi = prev->next_this_sw_interface; - } - pi = prev ? prev - lm->if_address_pool : (u32)~0; + while (pi != (u32) ~ 0) + { + prev = pool_elt_at_index (lm->if_address_pool, pi); + pi = prev->next_this_sw_interface; + } + pi = prev ? prev - lm->if_address_pool : (u32) ~ 0; a->address_key = mhash_set (&lm->address_to_if_address_index, addr_fib, ai, /* old_value */ 0); @@ -145,10 +151,10 @@ ip_interface_address_add_del (ip_lookup_main_t * lm, a->prev_this_sw_interface = pi; a->next_this_sw_interface = ~0; if (prev) - prev->next_this_sw_interface = ai; + prev->next_this_sw_interface = ai; - lm->if_address_pool_index_by_sw_if_index[sw_if_index] = - (hi != ~0) ? hi : ai; + lm->if_address_pool_index_by_sw_if_index[sw_if_index] = + (hi != ~0) ? hi : ai; if (result_if_address_index) *result_if_address_index = ai; } @@ -157,23 +163,25 @@ ip_interface_address_add_del (ip_lookup_main_t * lm, if (result_if_address_index) *result_if_address_index = a - lm->if_address_pool; } - + return /* no error */ 0; } -void ip_lookup_init (ip_lookup_main_t * lm, u32 is_ip6) +void +ip_lookup_init (ip_lookup_main_t * lm, u32 is_ip6) { /* ensure that adjacency is cacheline aligned and sized */ - STATIC_ASSERT(STRUCT_OFFSET_OF(ip_adjacency_t, cacheline0) == 0, - "Cache line marker must be 1st element in struct"); - STATIC_ASSERT(STRUCT_OFFSET_OF(ip_adjacency_t, cacheline1) == CLIB_CACHE_LINE_BYTES, - "Data in cache line 0 is bigger than cache line size"); + STATIC_ASSERT (STRUCT_OFFSET_OF (ip_adjacency_t, cacheline0) == 0, + "Cache line marker must be 1st element in struct"); + STATIC_ASSERT (STRUCT_OFFSET_OF (ip_adjacency_t, cacheline1) == + CLIB_CACHE_LINE_BYTES, + "Data in cache line 0 is bigger than cache line size"); /* Preallocate three "special" adjacencies */ lm->adjacency_heap = adj_pool; - if (! lm->fib_result_n_bytes) + if (!lm->fib_result_n_bytes) lm->fib_result_n_bytes = sizeof (uword); lm->is_ip6 = is_ip6; @@ -201,16 +209,21 @@ void ip_lookup_init (ip_lookup_main_t * lm, u32 is_ip6) } lm->local_next_by_ip_protocol[IP_PROTOCOL_UDP] = IP_LOCAL_NEXT_UDP_LOOKUP; - lm->local_next_by_ip_protocol[is_ip6 ? IP_PROTOCOL_ICMP6 : IP_PROTOCOL_ICMP] = IP_LOCAL_NEXT_ICMP; - lm->builtin_protocol_by_ip_protocol[IP_PROTOCOL_UDP] = IP_BUILTIN_PROTOCOL_UDP; - lm->builtin_protocol_by_ip_protocol[is_ip6 ? IP_PROTOCOL_ICMP6 : IP_PROTOCOL_ICMP] = IP_BUILTIN_PROTOCOL_ICMP; + lm->local_next_by_ip_protocol[is_ip6 ? IP_PROTOCOL_ICMP6 : + IP_PROTOCOL_ICMP] = IP_LOCAL_NEXT_ICMP; + lm->builtin_protocol_by_ip_protocol[IP_PROTOCOL_UDP] = + IP_BUILTIN_PROTOCOL_UDP; + lm->builtin_protocol_by_ip_protocol[is_ip6 ? IP_PROTOCOL_ICMP6 : + IP_PROTOCOL_ICMP] = + IP_BUILTIN_PROTOCOL_ICMP; } } -u8 * format_ip_flow_hash_config (u8 * s, va_list * args) +u8 * +format_ip_flow_hash_config (u8 * s, va_list * args) { flow_hash_config_t flow_hash_config = va_arg (*args, u32); - + #define _(n,v) if (flow_hash_config & v) s = format (s, "%s ", #n); foreach_flow_hash_bit; #undef _ @@ -218,10 +231,11 @@ u8 * format_ip_flow_hash_config (u8 * s, va_list * args) return s; } -u8 * format_ip_lookup_next (u8 * s, va_list * args) +u8 * +format_ip_lookup_next (u8 * s, va_list * args) { ip_lookup_next_t n = va_arg (*args, ip_lookup_next_t); - char * t = 0; + char *t = 0; switch (n) { @@ -229,11 +243,21 @@ u8 * format_ip_lookup_next (u8 * s, va_list * args) s = format (s, "unknown %d", n); return s; - case IP_LOOKUP_NEXT_DROP: t = "drop"; break; - case IP_LOOKUP_NEXT_PUNT: t = "punt"; break; - case IP_LOOKUP_NEXT_ARP: t = "arp"; break; - case IP_LOOKUP_NEXT_MIDCHAIN: t="midchain"; break; - case IP_LOOKUP_NEXT_GLEAN: t="glean"; break; + case IP_LOOKUP_NEXT_DROP: + t = "drop"; + break; + case IP_LOOKUP_NEXT_PUNT: + t = "punt"; + break; + case IP_LOOKUP_NEXT_ARP: + t = "arp"; + break; + case IP_LOOKUP_NEXT_MIDCHAIN: + t = "midchain"; + break; + case IP_LOOKUP_NEXT_GLEAN: + t = "glean"; + break; case IP_LOOKUP_NEXT_REWRITE: break; } @@ -244,20 +268,22 @@ u8 * format_ip_lookup_next (u8 * s, va_list * args) return s; } -u8 * format_ip_adjacency_packet_data (u8 * s, va_list * args) +u8 * +format_ip_adjacency_packet_data (u8 * s, va_list * args) { - vnet_main_t * vnm = va_arg (*args, vnet_main_t *); + vnet_main_t *vnm = va_arg (*args, vnet_main_t *); u32 adj_index = va_arg (*args, u32); - u8 * packet_data = va_arg (*args, u8 *); + u8 *packet_data = va_arg (*args, u8 *); u32 n_packet_data_bytes = va_arg (*args, u32); - ip_adjacency_t * adj = adj_get(adj_index); + ip_adjacency_t *adj = adj_get (adj_index); switch (adj->lookup_next_index) { case IP_LOOKUP_NEXT_REWRITE: s = format (s, "%U", format_vnet_rewrite_header, - vnm->vlib_main, &adj->rewrite_header, packet_data, n_packet_data_bytes); + vnm->vlib_main, &adj->rewrite_header, packet_data, + n_packet_data_bytes); break; default: @@ -267,38 +293,39 @@ u8 * format_ip_adjacency_packet_data (u8 * s, va_list * args) return s; } -static uword unformat_dpo (unformat_input_t * input, va_list * args) +static uword +unformat_dpo (unformat_input_t * input, va_list * args) { dpo_id_t *dpo = va_arg (*args, dpo_id_t *); fib_protocol_t fp = va_arg (*args, int); dpo_proto_t proto; - proto = fib_proto_to_dpo(fp); + proto = fib_proto_to_dpo (fp); if (unformat (input, "drop")) - dpo_copy(dpo, drop_dpo_get(proto)); + dpo_copy (dpo, drop_dpo_get (proto)); else if (unformat (input, "punt")) - dpo_copy(dpo, punt_dpo_get(proto)); + dpo_copy (dpo, punt_dpo_get (proto)); else if (unformat (input, "local")) - receive_dpo_add_or_lock(proto, ~0, NULL, dpo); + receive_dpo_add_or_lock (proto, ~0, NULL, dpo); else if (unformat (input, "null-send-unreach")) - ip_null_dpo_add_and_lock(proto, IP_NULL_ACTION_SEND_ICMP_UNREACH, dpo); + ip_null_dpo_add_and_lock (proto, IP_NULL_ACTION_SEND_ICMP_UNREACH, dpo); else if (unformat (input, "null-send-prohibit")) - ip_null_dpo_add_and_lock(proto, IP_NULL_ACTION_SEND_ICMP_PROHIBIT, dpo); + ip_null_dpo_add_and_lock (proto, IP_NULL_ACTION_SEND_ICMP_PROHIBIT, dpo); else if (unformat (input, "null")) - ip_null_dpo_add_and_lock(proto, IP_NULL_ACTION_NONE, dpo); + ip_null_dpo_add_and_lock (proto, IP_NULL_ACTION_NONE, dpo); else if (unformat (input, "classify")) { u32 classify_table_index; if (!unformat (input, "%d", &classify_table_index)) - { + { clib_warning ("classify adj must specify table index"); - return 0; + return 0; } - dpo_set(dpo, DPO_CLASSIFY, proto, - classify_dpo_create(proto, classify_table_index)); + dpo_set (dpo, DPO_CLASSIFY, proto, + classify_dpo_create (proto, classify_table_index)); } else return 0; @@ -307,69 +334,66 @@ static uword unformat_dpo (unformat_input_t * input, va_list * args) } const ip46_address_t zero_addr = { - .as_u64 = { - 0, 0 - }, + .as_u64 = { + 0, 0}, }; u32 -fib_table_id_find_fib_index (fib_protocol_t proto, - u32 table_id) +fib_table_id_find_fib_index (fib_protocol_t proto, u32 table_id) { - ip4_main_t *im4 = &ip4_main; - ip6_main_t *im6 = &ip6_main; - uword * p; + ip4_main_t *im4 = &ip4_main; + ip6_main_t *im6 = &ip6_main; + uword *p; - switch (proto) + switch (proto) { case FIB_PROTOCOL_IP4: - p = hash_get(im4->fib_index_by_table_id, table_id); - break; + p = hash_get (im4->fib_index_by_table_id, table_id); + break; case FIB_PROTOCOL_IP6: - p = hash_get(im6->fib_index_by_table_id, table_id); - break; + p = hash_get (im6->fib_index_by_table_id, table_id); + break; default: - p = NULL; - break; + p = NULL; + break; } - if (NULL != p) + if (NULL != p) { - return (p[0]); + return (p[0]); } - return (~0); + return (~0); } clib_error_t * vnet_ip_route_cmd (vlib_main_t * vm, - unformat_input_t * main_input, - vlib_cli_command_t * cmd) + unformat_input_t * main_input, vlib_cli_command_t * cmd) { - unformat_input_t _line_input, * line_input = &_line_input; + unformat_input_t _line_input, *line_input = &_line_input; fib_route_path_t *rpaths = NULL, rpath; dpo_id_t dpo = DPO_INVALID, *dpos = NULL; fib_prefix_t *prefixs = NULL, pfx; mpls_label_t out_label, via_label; - clib_error_t * error = NULL; + clib_error_t *error = NULL; u32 table_id, is_del; - vnet_main_t * vnm; + vnet_main_t *vnm; u32 fib_index; f64 count; int i; - vnm = vnet_get_main(); + vnm = vnet_get_main (); is_del = 0; table_id = 0; count = 1; - memset(&pfx, 0, sizeof(pfx)); + memset (&pfx, 0, sizeof (pfx)); out_label = via_label = MPLS_LABEL_INVALID; /* Get a line of input. */ - if (! unformat_user (main_input, unformat_line_input, line_input)) + if (!unformat_user (main_input, unformat_line_input, line_input)) return 0; while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { - memset(&rpath, 0, sizeof(rpath)); + memset (&rpath, 0, sizeof (rpath)); if (unformat (line_input, "table %d", &table_id)) ; @@ -378,129 +402,120 @@ vnet_ip_route_cmd (vlib_main_t * vm, else if (unformat (line_input, "add")) is_del = 0; else if (unformat (line_input, "resolve-via-host")) - { - if (vec_len(rpaths) == 0) - { - error = clib_error_return(0 , "Paths then flags"); + { + if (vec_len (rpaths) == 0) + { + error = clib_error_return (0, "Paths then flags"); goto done; - } - rpaths[vec_len(rpaths)-1].frp_flags |= FIB_ROUTE_PATH_RESOLVE_VIA_HOST; - } + } + rpaths[vec_len (rpaths) - 1].frp_flags |= + FIB_ROUTE_PATH_RESOLVE_VIA_HOST; + } else if (unformat (line_input, "resolve-via-attached")) - { - if (vec_len(rpaths) == 0) - { - error = clib_error_return(0 , "Paths then flags"); + { + if (vec_len (rpaths) == 0) + { + error = clib_error_return (0, "Paths then flags"); goto done; - } - rpaths[vec_len(rpaths)-1].frp_flags |= - FIB_ROUTE_PATH_RESOLVE_VIA_ATTACHED; - } + } + rpaths[vec_len (rpaths) - 1].frp_flags |= + FIB_ROUTE_PATH_RESOLVE_VIA_ATTACHED; + } else if (unformat (line_input, "out-label %U", - unformat_mpls_unicast_label, &out_label)) - { - if (vec_len(rpaths) == 0) - { - error = clib_error_return(0 , "Paths then labels"); + unformat_mpls_unicast_label, &out_label)) + { + if (vec_len (rpaths) == 0) + { + error = clib_error_return (0, "Paths then labels"); goto done; - } - vec_add1(rpaths[vec_len(rpaths)-1].frp_label_stack, out_label); - } + } + vec_add1 (rpaths[vec_len (rpaths) - 1].frp_label_stack, out_label); + } else if (unformat (line_input, "via-label %U", - unformat_mpls_unicast_label, - &rpath.frp_local_label)) - { + unformat_mpls_unicast_label, &rpath.frp_local_label)) + { rpath.frp_weight = 1; rpath.frp_proto = FIB_PROTOCOL_MPLS; rpath.frp_sw_if_index = ~0; - vec_add1(rpaths, rpath); - } + vec_add1 (rpaths, rpath); + } else if (unformat (line_input, "count %f", &count)) ; else if (unformat (line_input, "%U/%d", - unformat_ip4_address, - &pfx.fp_addr.ip4, - &pfx.fp_len)) - { + unformat_ip4_address, &pfx.fp_addr.ip4, &pfx.fp_len)) + { pfx.fp_proto = FIB_PROTOCOL_IP4; - vec_add1(prefixs, pfx); - } + vec_add1 (prefixs, pfx); + } else if (unformat (line_input, "%U/%d", - unformat_ip6_address, - &pfx.fp_addr.ip6, - &pfx.fp_len)) - { + unformat_ip6_address, &pfx.fp_addr.ip6, &pfx.fp_len)) + { pfx.fp_proto = FIB_PROTOCOL_IP6; - vec_add1(prefixs, pfx); - } + vec_add1 (prefixs, pfx); + } else if (unformat (line_input, "via %U %U weight %u", unformat_ip4_address, &rpath.frp_addr.ip4, unformat_vnet_sw_interface, vnm, - &rpath.frp_sw_if_index, - &rpath.frp_weight)) - { + &rpath.frp_sw_if_index, &rpath.frp_weight)) + { rpath.frp_proto = FIB_PROTOCOL_IP4; - vec_add1(rpaths, rpath); - } + vec_add1 (rpaths, rpath); + } else if (unformat (line_input, "via %U %U weight %u", unformat_ip6_address, &rpath.frp_addr.ip6, unformat_vnet_sw_interface, vnm, - &rpath.frp_sw_if_index, - &rpath.frp_weight)) - { + &rpath.frp_sw_if_index, &rpath.frp_weight)) + { rpath.frp_proto = FIB_PROTOCOL_IP6; - vec_add1(rpaths, rpath); - } + vec_add1 (rpaths, rpath); + } else if (unformat (line_input, "via %U %U", unformat_ip4_address, - &rpath.frp_addr.ip4, + &rpath.frp_addr.ip4, unformat_vnet_sw_interface, vnm, &rpath.frp_sw_if_index)) - { + { rpath.frp_weight = 1; rpath.frp_proto = FIB_PROTOCOL_IP4; - vec_add1(rpaths, rpath); - } - + vec_add1 (rpaths, rpath); + } + else if (unformat (line_input, "via %U %U", unformat_ip6_address, - &rpath.frp_addr.ip6, + &rpath.frp_addr.ip6, unformat_vnet_sw_interface, vnm, &rpath.frp_sw_if_index)) - { + { rpath.frp_weight = 1; rpath.frp_proto = FIB_PROTOCOL_IP6; - vec_add1(rpaths, rpath); - } + vec_add1 (rpaths, rpath); + } else if (unformat (line_input, "via %U next-hop-table %d", unformat_ip4_address, - &rpath.frp_addr.ip4, - &rpath.frp_fib_index)) - { + &rpath.frp_addr.ip4, &rpath.frp_fib_index)) + { rpath.frp_weight = 1; rpath.frp_sw_if_index = ~0; rpath.frp_proto = FIB_PROTOCOL_IP4; - vec_add1(rpaths, rpath); - } + vec_add1 (rpaths, rpath); + } else if (unformat (line_input, "via %U next-hop-table %d", unformat_ip6_address, - &rpath.frp_addr.ip6, - &rpath.frp_fib_index)) - { + &rpath.frp_addr.ip6, &rpath.frp_fib_index)) + { rpath.frp_weight = 1; rpath.frp_sw_if_index = ~0; rpath.frp_proto = FIB_PROTOCOL_IP6; - vec_add1(rpaths, rpath); - } + vec_add1 (rpaths, rpath); + } else if (unformat (line_input, "via %U", - unformat_ip4_address, - &rpath.frp_addr.ip4)) - { + unformat_ip4_address, &rpath.frp_addr.ip4)) + { /* * the recursive next-hops are by default in the same table * as the prefix @@ -509,44 +524,43 @@ vnet_ip_route_cmd (vlib_main_t * vm, rpath.frp_weight = 1; rpath.frp_sw_if_index = ~0; rpath.frp_proto = FIB_PROTOCOL_IP4; - vec_add1(rpaths, rpath); - } + vec_add1 (rpaths, rpath); + } else if (unformat (line_input, "via %U", - unformat_ip6_address, - &rpath.frp_addr.ip6)) - { + unformat_ip6_address, &rpath.frp_addr.ip6)) + { rpath.frp_fib_index = table_id; rpath.frp_weight = 1; rpath.frp_sw_if_index = ~0; rpath.frp_proto = FIB_PROTOCOL_IP6; - vec_add1(rpaths, rpath); - } + vec_add1 (rpaths, rpath); + } else if (unformat (line_input, - "lookup in table %d", - &rpath.frp_fib_index)) - { + "lookup in table %d", &rpath.frp_fib_index)) + { rpath.frp_proto = pfx.fp_proto; rpath.frp_sw_if_index = ~0; - vec_add1(rpaths, rpath); - } + vec_add1 (rpaths, rpath); + } else if (vec_len (prefixs) > 0 && unformat (line_input, "via %U", unformat_dpo, &dpo, prefixs[0].fp_proto)) - { + { vec_add1 (dpos, dpo); - } + } else - { + { error = unformat_parse_error (line_input); goto done; - } + } } - + unformat_free (line_input); if (vec_len (prefixs) == 0) - { - error = clib_error_return (0, "expected ip4/ip6 destination address/length."); + { + error = + clib_error_return (0, "expected ip4/ip6 destination address/length."); goto done; } @@ -557,50 +571,47 @@ vnet_ip_route_cmd (vlib_main_t * vm, } if (~0 == table_id) - { + { /* * if no table_id is passed we will manipulate the default */ fib_index = 0; - } + } else - { - fib_index = fib_table_id_find_fib_index(prefixs[0].fp_proto, - table_id); + { + fib_index = fib_table_id_find_fib_index (prefixs[0].fp_proto, table_id); if (~0 == fib_index) - { - error = clib_error_return (0, - "Nonexistent table id %d", - table_id); + { + error = clib_error_return (0, "Nonexistent table id %d", table_id); goto done; - } - } + } + } for (i = 0; i < vec_len (prefixs); i++) - { + { if (is_del && 0 == vec_len (rpaths)) - { - fib_table_entry_delete(fib_index, - &prefixs[i], - FIB_SOURCE_CLI); - } + { + fib_table_entry_delete (fib_index, &prefixs[i], FIB_SOURCE_CLI); + } else if (!is_del && 1 == vec_len (dpos)) - { - fib_table_entry_special_dpo_add(fib_index, - &prefixs[i], - FIB_SOURCE_CLI, - FIB_ENTRY_FLAG_EXCLUSIVE, - &dpos[0]); - dpo_reset(&dpos[0]); - } + { + fib_table_entry_special_dpo_add (fib_index, + &prefixs[i], + FIB_SOURCE_CLI, + FIB_ENTRY_FLAG_EXCLUSIVE, + &dpos[0]); + dpo_reset (&dpos[0]); + } else if (vec_len (dpos) > 0) - { - error = clib_error_return(0 , "Load-balancing over multiple special adjacencies is unsupported"); + { + error = + clib_error_return (0, + "Load-balancing over multiple special adjacencies is unsupported"); goto done; - } + } else if (0 < vec_len (rpaths)) - { + { u32 k, j, n, incr; ip46_address_t dst = prefixs[i].fp_addr; f64 t[2]; @@ -610,97 +621,106 @@ vnet_ip_route_cmd (vlib_main_t * vm, prefixs[i].fp_len); for (k = 0; k < n; k++) - { + { for (j = 0; j < vec_len (rpaths); j++) - { + { u32 fi; /* * the CLI parsing stored table Ids, swap to FIB indicies */ - fi = fib_table_id_find_fib_index(prefixs[i].fp_proto, - rpaths[i].frp_fib_index); + fi = fib_table_id_find_fib_index (prefixs[i].fp_proto, + rpaths[i].frp_fib_index); if (~0 == fi) - { - error = clib_error_return(0 , "Via table %d does not exist", - rpaths[i].frp_fib_index); + { + error = + clib_error_return (0, "Via table %d does not exist", + rpaths[i].frp_fib_index); goto done; - } + } rpaths[i].frp_fib_index = fi; fib_prefix_t rpfx = { - .fp_len = prefixs[i].fp_len, - .fp_proto = prefixs[i].fp_proto, - .fp_addr = dst, + .fp_len = prefixs[i].fp_len, + .fp_proto = prefixs[i].fp_proto, + .fp_addr = dst, }; - if (is_del) - fib_table_entry_path_remove2(fib_index, - &rpfx, - FIB_SOURCE_CLI, - &rpaths[j]); - else - fib_table_entry_path_add2(fib_index, - &rpfx, - FIB_SOURCE_CLI, - FIB_ENTRY_FLAG_NONE, - &rpaths[j]); - } + if (is_del) + fib_table_entry_path_remove2 (fib_index, + &rpfx, + FIB_SOURCE_CLI, &rpaths[j]); + else + fib_table_entry_path_add2 (fib_index, + &rpfx, + FIB_SOURCE_CLI, + FIB_ENTRY_FLAG_NONE, + &rpaths[j]); + } if (FIB_PROTOCOL_IP4 == prefixs[0].fp_proto) - { + { dst.ip4.as_u32 = - clib_host_to_net_u32(incr + - clib_net_to_host_u32 (dst.ip4.as_u32)); - } + clib_host_to_net_u32 (incr + + clib_net_to_host_u32 (dst. + ip4.as_u32)); + } else - { + { int bucket = (incr < 64 ? 0 : 1); dst.ip6.as_u64[bucket] = - clib_host_to_net_u64(incr + - clib_net_to_host_u64 ( - dst.ip6.as_u64[bucket])); + clib_host_to_net_u64 (incr + + clib_net_to_host_u64 (dst.ip6.as_u64 + [bucket])); - } - } + } + } t[1] = vlib_time_now (vm); if (count > 1) - vlib_cli_output (vm, "%.6e routes/sec", count / (t[1] - t[0])); - } + vlib_cli_output (vm, "%.6e routes/sec", count / (t[1] - t[0])); + } else - { - error = clib_error_return(0 , "Don't understand what you want..."); + { + error = clib_error_return (0, "Don't understand what you want..."); goto done; - } - } + } + } - done: +done: vec_free (dpos); vec_free (prefixs); vec_free (rpaths); return error; } +/* *INDENT-OFF* */ VLIB_CLI_COMMAND (vlib_cli_ip_command, static) = { .path = "ip", .short_help = "Internet protocol (IP) commands", }; +/* *INDENT-ON* */ +/* *INDENT-OFF* */ VLIB_CLI_COMMAND (vlib_cli_ip6_command, static) = { .path = "ip6", .short_help = "Internet protocol version 6 (IPv6) commands", }; +/* *INDENT-ON* */ +/* *INDENT-OFF* */ VLIB_CLI_COMMAND (vlib_cli_show_ip_command, static) = { .path = "show ip", .short_help = "Internet protocol (IP) show commands", }; +/* *INDENT-ON* */ +/* *INDENT-OFF* */ VLIB_CLI_COMMAND (vlib_cli_show_ip6_command, static) = { .path = "show ip6", .short_help = "Internet protocol version 6 (IPv6) show commands", }; +/* *INDENT-ON* */ /*? * This command is used to add or delete IPv4 or IPv6 routes. All @@ -744,22 +764,22 @@ VLIB_CLI_COMMAND (ip_route_command, static) = { * or dependent route-adds will simply fail. */ static clib_error_t * -ip6_probe_neighbor_wait (vlib_main_t *vm, ip6_address_t * a, u32 sw_if_index, +ip6_probe_neighbor_wait (vlib_main_t * vm, ip6_address_t * a, u32 sw_if_index, int retry_count) { - vnet_main_t * vnm = vnet_get_main(); - clib_error_t * e; + vnet_main_t *vnm = vnet_get_main (); + clib_error_t *e; int i; int resolved = 0; uword event_type; uword *event_data = 0; - ASSERT (vlib_in_process_context(vm)); + ASSERT (vlib_in_process_context (vm)); if (retry_count > 0) vnet_register_ip6_neighbor_resolution_event (vnm, a, vlib_get_current_process (vm)->node_runtime.node_index, - 1 /* event */, 0 /* data */); + 1 /* event */ , 0 /* data */ ); for (i = 0; i < retry_count; i++) { @@ -773,121 +793,118 @@ ip6_probe_neighbor_wait (vlib_main_t *vm, ip6_address_t * a, u32 sw_if_index, event_type = vlib_process_get_events (vm, &event_data); switch (event_type) { - case 1: /* resolved... */ - vlib_cli_output (vm, "Resolved %U", - format_ip6_address, a); - resolved = 1; - goto done; - - case ~0: /* timeout */ - break; - - default: - clib_warning ("unknown event_type %d", event_type); - } + case 1: /* resolved... */ + vlib_cli_output (vm, "Resolved %U", format_ip6_address, a); + resolved = 1; + goto done; + + case ~0: /* timeout */ + break; + + default: + clib_warning ("unknown event_type %d", event_type); + } vec_reset_length (event_data); } - - done: + +done: if (!resolved) return clib_error_return (0, "Resolution failed for %U", - format_ip6_address, a); + format_ip6_address, a); return 0; } static clib_error_t * -ip4_probe_neighbor_wait (vlib_main_t *vm, ip4_address_t * a, u32 sw_if_index, - int retry_count) +ip4_probe_neighbor_wait (vlib_main_t * vm, ip4_address_t * a, u32 sw_if_index, + int retry_count) { - vnet_main_t * vnm = vnet_get_main(); - clib_error_t * e; + vnet_main_t *vnm = vnet_get_main (); + clib_error_t *e; int i; int resolved = 0; uword event_type; uword *event_data = 0; - ASSERT (vlib_in_process_context(vm)); + ASSERT (vlib_in_process_context (vm)); if (retry_count > 0) - vnet_register_ip4_arp_resolution_event + vnet_register_ip4_arp_resolution_event (vnm, a, vlib_get_current_process (vm)->node_runtime.node_index, - 1 /* event */, 0 /* data */); - + 1 /* event */ , 0 /* data */ ); + for (i = 0; i < retry_count; i++) { /* The interface may be down, etc. */ e = ip4_probe_neighbor (vm, a, sw_if_index); - + if (e) - return e; - + return e; + vlib_process_wait_for_event_or_clock (vm, 1.0); event_type = vlib_process_get_events (vm, &event_data); - switch (event_type) - { - case 1: /* resolved... */ - vlib_cli_output (vm, "Resolved %U", - format_ip4_address, a); - resolved = 1; - goto done; - - case ~0: /* timeout */ - break; - - default: - clib_warning ("unknown event_type %d", event_type); - } + switch (event_type) + { + case 1: /* resolved... */ + vlib_cli_output (vm, "Resolved %U", format_ip4_address, a); + resolved = 1; + goto done; + + case ~0: /* timeout */ + break; + + default: + clib_warning ("unknown event_type %d", event_type); + } vec_reset_length (event_data); } - - done: + +done: vec_reset_length (event_data); if (!resolved) return clib_error_return (0, "Resolution failed for %U", - format_ip4_address, a); + format_ip4_address, a); return 0; } static clib_error_t * probe_neighbor_address (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, vlib_cli_command_t * cmd) { - vnet_main_t * vnm = vnet_get_main(); - unformat_input_t _line_input, * line_input = &_line_input; + vnet_main_t *vnm = vnet_get_main (); + unformat_input_t _line_input, *line_input = &_line_input; ip4_address_t a4; ip6_address_t a6; - clib_error_t * error = 0; + clib_error_t *error = 0; u32 sw_if_index = ~0; int retry_count = 3; int is_ip4 = 1; int address_set = 0; /* Get a line of input. */ - if (! unformat_user (input, unformat_line_input, line_input)) + if (!unformat_user (input, unformat_line_input, line_input)) return 0; - while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { - if (unformat_user (line_input, unformat_vnet_sw_interface, vnm, - &sw_if_index)) - ; + if (unformat_user (line_input, unformat_vnet_sw_interface, vnm, + &sw_if_index)) + ; else if (unformat (line_input, "retry %d", &retry_count)) - ; + ; else if (unformat (line_input, "%U", unformat_ip4_address, &a4)) - address_set++; + address_set++; else if (unformat (line_input, "%U", unformat_ip6_address, &a6)) - { - address_set++; - is_ip4 = 0; - } + { + address_set++; + is_ip4 = 0; + } else - return clib_error_return (0, "unknown input '%U'", - format_unformat_error, line_input); + return clib_error_return (0, "unknown input '%U'", + format_unformat_error, line_input); } unformat_free (line_input); @@ -898,10 +915,10 @@ probe_neighbor_address (vlib_main_t * vm, return clib_error_return (0, "ip address required, not set."); if (address_set > 1) return clib_error_return (0, "Multiple ip addresses not supported."); - + if (is_ip4) error = ip4_probe_neighbor_wait (vm, &a4, sw_if_index, retry_count); - else + else error = ip6_probe_neighbor_wait (vm, &a6, sw_if_index, retry_count); return error; @@ -931,3 +948,11 @@ VLIB_CLI_COMMAND (ip_probe_neighbor_command, static) = { .is_mp_safe = 1, }; /* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/lookup.h b/vnet/vnet/ip/lookup.h index 4b6aaa10da9..3dbd7b3b8e8 100644 --- a/vnet/vnet/ip/lookup.h +++ b/vnet/vnet/ip/lookup.h @@ -57,7 +57,8 @@ #include <vnet/feature/feature.h> /** @brief Common (IP4/IP6) next index stored in adjacency. */ -typedef enum { +typedef enum +{ /** Adjacency to drop this packet. */ IP_LOOKUP_NEXT_DROP, /** Adjacency to punt this packet. */ @@ -93,11 +94,13 @@ typedef enum { IP_LOOKUP_N_NEXT, } ip_lookup_next_t; -typedef enum { +typedef enum +{ IP4_LOOKUP_N_NEXT = IP_LOOKUP_N_NEXT, } ip4_lookup_next_t; -typedef enum { +typedef enum +{ /* Hop-by-hop header handling */ IP6_LOOKUP_NEXT_HOP_BY_HOP = IP_LOOKUP_N_NEXT, IP6_LOOKUP_NEXT_ADD_HOP_BY_HOP, @@ -164,9 +167,9 @@ struct ip_adjacency_t_; /** * @brief A function type for post-rewrite fixups on midchain adjacency */ -typedef void (*adj_midchain_fixup_t)(vlib_main_t * vm, - struct ip_adjacency_t_ *adj, - vlib_buffer_t * b0); +typedef void (*adj_midchain_fixup_t) (vlib_main_t * vm, + struct ip_adjacency_t_ * adj, + vlib_buffer_t * b0); /** * @brief Flags on an IP adjacency @@ -176,22 +179,24 @@ typedef enum ip_adjacency_flags_t_ /** * Currently a sync walk is active. Used to prevent re-entrant walking */ - IP_ADJ_SYNC_WALK_ACTIVE = (1 << 0), + IP_ADJ_SYNC_WALK_ACTIVE = (1 << 0), } ip_adjacency_flags_t; /** @brief IP unicast adjacency. @note cache aligned. */ -typedef struct ip_adjacency_t_ { - CLIB_CACHE_LINE_ALIGN_MARK(cacheline0); +typedef struct ip_adjacency_t_ +{ + CLIB_CACHE_LINE_ALIGN_MARK (cacheline0); /** Number of adjecencies in block. Greater than 1 means multipath; otherwise equal to 1. */ u16 n_adj; /** Next hop after ip4-lookup. */ - union { - ip_lookup_next_t lookup_next_index : 16; + union + { + ip_lookup_next_t lookup_next_index:16; u16 lookup_next_index_as_int; }; @@ -199,7 +204,7 @@ typedef struct ip_adjacency_t_ { u32 if_address_index; /** Force re-lookup in a different FIB. ~0 => normal behavior */ - u16 mcast_group_index; + u16 mcast_group_index; /** Highest possible perf subgraph arc interposition, e.g. for ip6 ioam */ u16 saved_lookup_next_index; @@ -210,15 +215,17 @@ typedef struct ip_adjacency_t_ { vnet_link_t ia_link; u8 ia_nh_proto; - union { + union + { /** * IP_LOOKUP_NEXT_ARP/IP_LOOKUP_NEXT_REWRITE * * neighbour adjacency sub-type; */ - struct { - ip46_address_t next_hop; - } nbr; + struct + { + ip46_address_t next_hop; + } nbr; /** * IP_LOOKUP_NEXT_MIDCHAIN * @@ -227,38 +234,40 @@ typedef struct ip_adjacency_t_ { * so be sure to leave the two structs with the next_hop * fields aligned. */ - struct { + struct + { /** * The recursive next-hop */ - ip46_address_t next_hop; + ip46_address_t next_hop; /** * The node index of the tunnel's post rewrite/TX function. */ - u32 tx_function_node; + u32 tx_function_node; /** * The next DPO to use */ - dpo_id_t next_dpo; + dpo_id_t next_dpo; /** * A function to perform the post-rewrite fixup */ - adj_midchain_fixup_t fixup_func; - } midchain; + adj_midchain_fixup_t fixup_func; + } midchain; /** * IP_LOOKUP_NEXT_GLEAN * * Glean the address to ARP for from the packet's destination */ - struct { - ip46_address_t receive_addr; - } glean; + struct + { + ip46_address_t receive_addr; + } glean; } sub_type; - CLIB_CACHE_LINE_ALIGN_MARK(cacheline1); + CLIB_CACHE_LINE_ALIGN_MARK (cacheline1); /* Rewrite in second/third cache lines */ - vnet_declare_rewrite (VLIB_BUFFER_PRE_DATA_SIZE); + vnet_declare_rewrite (VLIB_BUFFER_PRE_DATA_SIZE); /* * member not accessed in the data plane are relgated to the @@ -273,17 +282,18 @@ typedef struct ip_adjacency_t_ { } ip_adjacency_t; -STATIC_ASSERT((STRUCT_OFFSET_OF(ip_adjacency_t, cacheline0) == 0), - "IP adjacency cachline 0 is not offset"); -STATIC_ASSERT((STRUCT_OFFSET_OF(ip_adjacency_t, cacheline1) == - CLIB_CACHE_LINE_BYTES), - "IP adjacency cachline 1 is more than one cachline size offset"); +STATIC_ASSERT ((STRUCT_OFFSET_OF (ip_adjacency_t, cacheline0) == 0), + "IP adjacency cachline 0 is not offset"); +STATIC_ASSERT ((STRUCT_OFFSET_OF (ip_adjacency_t, cacheline1) == + CLIB_CACHE_LINE_BYTES), + "IP adjacency cachline 1 is more than one cachline size offset"); /* An all zeros address */ extern const ip46_address_t zero_addr; /* IP multicast adjacency. */ -typedef struct { +typedef struct +{ /* Handle for this adjacency in adjacency heap. */ u32 heap_handle; @@ -291,31 +301,36 @@ typedef struct { u32 n_adj; /* Rewrite string. */ - vnet_declare_rewrite (64 - 2*sizeof(u32)); -} ip_multicast_rewrite_t; + vnet_declare_rewrite (64 - 2 * sizeof (u32)); +} +ip_multicast_rewrite_t; -typedef struct { +typedef struct +{ /* ip4-multicast-rewrite next index. */ u32 next_index; u8 n_rewrite_bytes; - u8 rewrite_string[64 - 1*sizeof(u32) - 1*sizeof(u8)]; -} ip_multicast_rewrite_string_t; + u8 rewrite_string[64 - 1 * sizeof (u32) - 1 * sizeof (u8)]; +} +ip_multicast_rewrite_string_t; -typedef struct { - ip_multicast_rewrite_t * rewrite_heap; +typedef struct +{ + ip_multicast_rewrite_t *rewrite_heap; - ip_multicast_rewrite_string_t * rewrite_strings; + ip_multicast_rewrite_string_t *rewrite_strings; /* Negative rewrite string index; >= 0 sw_if_index. Sorted. Used to hash. */ - i32 ** adjacency_id_vector; + i32 **adjacency_id_vector; - uword * adjacency_by_id_vector; + uword *adjacency_by_id_vector; } ip_multicast_lookup_main_t; -typedef struct { +typedef struct +{ /* Key for mhash; in fact, just a byte offset into mhash key vector. */ u32 address_key; @@ -337,7 +352,8 @@ typedef struct { u32 prev_this_sw_interface; } ip_interface_address_t; -typedef enum { +typedef enum +{ IP_LOCAL_NEXT_DROP, IP_LOCAL_NEXT_PUNT, IP_LOCAL_NEXT_UDP_LOOKUP, @@ -347,25 +363,26 @@ typedef enum { struct ip_lookup_main_t; -typedef struct ip_lookup_main_t { +typedef struct ip_lookup_main_t +{ /* Adjacency heap. */ - ip_adjacency_t * adjacency_heap; + ip_adjacency_t *adjacency_heap; /** load-balance packet/byte counters indexed by LB index. */ vlib_combined_counter_main_t load_balance_counters; /** Pool of addresses that are assigned to interfaces. */ - ip_interface_address_t * if_address_pool; + ip_interface_address_t *if_address_pool; /** Hash table mapping address to index in interface address pool. */ mhash_t address_to_if_address_index; /** Head of doubly linked list of interface addresses for each software interface. ~0 means this interface has no address. */ - u32 * if_address_pool_index_by_sw_if_index; + u32 *if_address_pool_index_by_sw_if_index; /** First table index to use for this interface, ~0 => none */ - u32 * classify_table_index_by_sw_if_index; + u32 *classify_table_index_by_sw_if_index; /** Feature arc indices */ u8 mcast_feature_arc_index; @@ -376,16 +393,16 @@ typedef struct ip_lookup_main_t { sizeof (uword). First word is always adjacency index. */ u32 fib_result_n_bytes, fib_result_n_words; - format_function_t * format_fib_result; + format_function_t *format_fib_result; /** 1 for ip6; 0 for ip4. */ u32 is_ip6; /** Either format_ip4_address_and_length or format_ip6_address_and_length. */ - format_function_t * format_address_and_length; + format_function_t *format_address_and_length; /** Special adjacency format functions */ - format_function_t ** special_adjacency_format_functions; + format_function_t **special_adjacency_format_functions; /** Table mapping ip protocol to ip[46]-local node next index. */ u8 local_next_by_ip_protocol[256]; @@ -395,10 +412,9 @@ typedef struct ip_lookup_main_t { } ip_lookup_main_t; always_inline ip_adjacency_t * -ip_get_adjacency (ip_lookup_main_t * lm, - u32 adj_index) +ip_get_adjacency (ip_lookup_main_t * lm, u32 adj_index) { - ip_adjacency_t * adj; + ip_adjacency_t *adj; adj = vec_elt_at_index (lm->adjacency_heap, adj_index); @@ -412,38 +428,35 @@ do { \ } while (0) /* Create new block of given number of contiguous adjacencies. */ -ip_adjacency_t * -ip_add_adjacency (ip_lookup_main_t * lm, - ip_adjacency_t * adj, - u32 n_adj, - u32 * adj_index_result); - -clib_error_t * -ip_interface_address_add_del (ip_lookup_main_t * lm, - u32 sw_if_index, - void * address, - u32 address_length, - u32 is_del, - u32 * result_index); - -u8 * -format_ip_flow_hash_config (u8 * s, va_list * args); +ip_adjacency_t *ip_add_adjacency (ip_lookup_main_t * lm, + ip_adjacency_t * adj, + u32 n_adj, u32 * adj_index_result); + +clib_error_t *ip_interface_address_add_del (ip_lookup_main_t * lm, + u32 sw_if_index, + void *address, + u32 address_length, + u32 is_del, u32 * result_index); + +u8 *format_ip_flow_hash_config (u8 * s, va_list * args); always_inline ip_interface_address_t * -ip_get_interface_address (ip_lookup_main_t * lm, void * addr_fib) +ip_get_interface_address (ip_lookup_main_t * lm, void *addr_fib) { - uword * p = mhash_get (&lm->address_to_if_address_index, addr_fib); + uword *p = mhash_get (&lm->address_to_if_address_index, addr_fib); return p ? pool_elt_at_index (lm->if_address_pool, p[0]) : 0; } -u32 -fib_table_id_find_fib_index (fib_protocol_t proto, - u32 table_id); +u32 fib_table_id_find_fib_index (fib_protocol_t proto, u32 table_id); always_inline void * -ip_interface_address_get_address (ip_lookup_main_t * lm, ip_interface_address_t * a) -{ return mhash_key_to_mem (&lm->address_to_if_address_index, a->address_key); } +ip_interface_address_get_address (ip_lookup_main_t * lm, + ip_interface_address_t * a) +{ + return mhash_key_to_mem (&lm->address_to_if_address_index, a->address_key); +} +/* *INDENT-OFF* */ #define foreach_ip_interface_address(lm,a,sw_if_index,loop,body) \ do { \ vnet_main_t *_vnm = vnet_get_main(); \ @@ -470,7 +483,16 @@ do { \ body; \ } \ } while (0) +/* *INDENT-ON* */ void ip_lookup_init (ip_lookup_main_t * lm, u32 ip_lookup_node_index); #endif /* included_ip_lookup_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ping.c b/vnet/vnet/ip/ping.c index 08e770132f0..68dbe759ebc 100644 --- a/vnet/vnet/ip/ping.c +++ b/vnet/vnet/ip/ping.c @@ -36,9 +36,8 @@ format_icmp_echo_trace (u8 * s, va_list * va) icmp_echo_trace_t *t = va_arg (*va, icmp_echo_trace_t *); s = format (s, "ICMP echo id %d seq %d%s", - clib_net_to_host_u16(t->id), - clib_net_to_host_u16(t->seq), - t->bound ? "" : " (unknown)"); + clib_net_to_host_u16 (t->id), + clib_net_to_host_u16 (t->seq), t->bound ? "" : " (unknown)"); return s; } @@ -54,7 +53,7 @@ format_icmp_echo_trace (u8 * s, va_list * va) static int signal_ip46_icmp_reply_event (vlib_main_t * vm, - u8 event_type, vlib_buffer_t * b0) + u8 event_type, vlib_buffer_t * b0) { ping_main_t *pm = &ping_main; u16 net_icmp_id = 0; @@ -64,14 +63,14 @@ signal_ip46_icmp_reply_event (vlib_main_t * vm, { case PING_RESPONSE_IP4: { - icmp4_echo_request_header_t *h0 = vlib_buffer_get_current (b0); - net_icmp_id = h0->icmp_echo.id; + icmp4_echo_request_header_t *h0 = vlib_buffer_get_current (b0); + net_icmp_id = h0->icmp_echo.id; } break; case PING_RESPONSE_IP6: { - icmp6_echo_request_header_t *h0 = vlib_buffer_get_current (b0); - net_icmp_id = h0->icmp_echo.id; + icmp6_echo_request_header_t *h0 = vlib_buffer_get_current (b0); + net_icmp_id = h0->icmp_echo.id; } break; default: @@ -79,7 +78,7 @@ signal_ip46_icmp_reply_event (vlib_main_t * vm, } uword *p = hash_get (pm->ping_run_by_icmp_id, - clib_net_to_host_u16 (net_icmp_id)); + clib_net_to_host_u16 (net_icmp_id)); if (!p) return 0; @@ -100,12 +99,12 @@ signal_ip46_icmp_reply_event (vlib_main_t * vm, */ static uword ip6_icmp_echo_reply_node_fn (vlib_main_t * vm, - vlib_node_runtime_t * node, vlib_frame_t * frame) + vlib_node_runtime_t * node, vlib_frame_t * frame) { u32 n_left_from, *from; - from = vlib_frame_vector_args (frame); /* array of buffer indices */ - n_left_from = frame->n_vectors; /* number of buffer indices */ + from = vlib_frame_vector_args (frame); /* array of buffer indices */ + n_left_from = frame->n_vectors; /* number of buffer indices */ while (n_left_from > 0) { @@ -117,16 +116,16 @@ ip6_icmp_echo_reply_node_fn (vlib_main_t * vm, b0 = vlib_get_buffer (vm, bi0); next0 = signal_ip46_icmp_reply_event (vm, PING_RESPONSE_IP6, b0) ? - ICMP6_ECHO_REPLY_NEXT_DROP : ICMP6_ECHO_REPLY_NEXT_PUNT; + ICMP6_ECHO_REPLY_NEXT_DROP : ICMP6_ECHO_REPLY_NEXT_PUNT; - if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED)) - { - icmp6_echo_request_header_t *h0 = vlib_buffer_get_current (b0); - icmp_echo_trace_t *tr = vlib_add_trace (vm, node, b0, sizeof (*tr)); - tr->id = h0->icmp_echo.id; - tr->seq = h0->icmp_echo.seq; - tr->bound = (next0 == ICMP6_ECHO_REPLY_NEXT_DROP); - } + if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) + { + icmp6_echo_request_header_t *h0 = vlib_buffer_get_current (b0); + icmp_echo_trace_t *tr = vlib_add_trace (vm, node, b0, sizeof (*tr)); + tr->id = h0->icmp_echo.id; + tr->seq = h0->icmp_echo.seq; + tr->bound = (next0 == ICMP6_ECHO_REPLY_NEXT_DROP); + } /* push this pkt to the next graph node */ vlib_set_next_frame_buffer (vm, node, next0, bi0); @@ -158,12 +157,12 @@ VLIB_REGISTER_NODE (ip6_icmp_echo_reply_node, static) = */ static uword ip4_icmp_echo_reply_node_fn (vlib_main_t * vm, - vlib_node_runtime_t * node, vlib_frame_t * frame) + vlib_node_runtime_t * node, vlib_frame_t * frame) { u32 n_left_from, *from; - from = vlib_frame_vector_args (frame); /* array of buffer indices */ - n_left_from = frame->n_vectors; /* number of buffer indices */ + from = vlib_frame_vector_args (frame); /* array of buffer indices */ + n_left_from = frame->n_vectors; /* number of buffer indices */ while (n_left_from > 0) { @@ -175,16 +174,16 @@ ip4_icmp_echo_reply_node_fn (vlib_main_t * vm, b0 = vlib_get_buffer (vm, bi0); next0 = signal_ip46_icmp_reply_event (vm, PING_RESPONSE_IP4, b0) ? - ICMP4_ECHO_REPLY_NEXT_DROP : ICMP4_ECHO_REPLY_NEXT_PUNT; + ICMP4_ECHO_REPLY_NEXT_DROP : ICMP4_ECHO_REPLY_NEXT_PUNT; - if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED)) - { - icmp4_echo_request_header_t *h0 = vlib_buffer_get_current (b0); - icmp_echo_trace_t *tr = vlib_add_trace (vm, node, b0, sizeof (*tr)); - tr->id = h0->icmp_echo.id; - tr->seq = h0->icmp_echo.seq; - tr->bound = (next0 == ICMP4_ECHO_REPLY_NEXT_DROP); - } + if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) + { + icmp4_echo_request_header_t *h0 = vlib_buffer_get_current (b0); + icmp_echo_trace_t *tr = vlib_add_trace (vm, node, b0, sizeof (*tr)); + tr->id = h0->icmp_echo.id; + tr->seq = h0->icmp_echo.seq; + tr->bound = (next0 == ICMP4_ECHO_REPLY_NEXT_DROP); + } /* push this pkt to the next graph node */ vlib_set_next_frame_buffer (vm, node, next0, bi0); @@ -222,23 +221,23 @@ ip6_interface_first_address (ip6_main_t * im, u32 sw_if_index) ip_interface_address_t *ia = 0; ip6_address_t *result = 0; + /* *INDENT-OFF* */ foreach_ip_interface_address (lm, ia, sw_if_index, 1 /* honor unnumbered */ , - ( - { - ip6_address_t * a = - ip_interface_address_get_address (lm, ia); - result = a; - break; - } - )); + ({ + ip6_address_t * a = + ip_interface_address_get_address (lm, ia); + result = a; + break; + })); + /* *INDENT-ON* */ return result; } /* Fill in the ICMP ECHO structure, return the safety-checked and possibly shrunk data_len */ static u16 init_icmp46_echo_request (icmp46_echo_request_t * icmp46_echo, - u16 seq_host, u16 id_host, u16 data_len) + u16 seq_host, u16 id_host, u16 data_len) { int i; icmp46_echo->seq = clib_host_to_net_u16 (seq_host); @@ -258,9 +257,9 @@ init_icmp46_echo_request (icmp46_echo_request_t * icmp46_echo, static send_ip46_ping_result_t send_ip6_ping (vlib_main_t * vm, ip6_main_t * im, - u32 table_id, ip6_address_t * pa6, - u32 sw_if_index, u16 seq_host, u16 id_host, u16 data_len, - u8 verbose) + u32 table_id, ip6_address_t * pa6, + u32 sw_if_index, u16 seq_host, u16 id_host, u16 data_len, + u8 verbose) { icmp6_echo_request_header_t *h0; u32 bi0 = 0; @@ -283,16 +282,16 @@ send_ip6_ping (vlib_main_t * vm, ip6_main_t * im, fib_node_index_t fib_entry_index; u32 fib_index; - fib_index = ip6_fib_index_from_table_id(table_id); + fib_index = ip6_fib_index_from_table_id (table_id); if (~0 == fib_index) - { - vlib_buffer_free (vm, &bi0, 1); - return SEND_PING_NO_TABLE; - } + { + vlib_buffer_free (vm, &bi0, 1); + return SEND_PING_NO_TABLE; + } - fib_entry_index = ip6_fib_table_lookup(fib_index, pa6, 128); - sw_if_index = fib_entry_get_resolving_interface(fib_entry_index); + fib_entry_index = ip6_fib_table_lookup (fib_index, pa6, 128); + sw_if_index = fib_entry_get_resolving_interface (fib_entry_index); /* * Set the TX interface to force ip-lookup to use its table ID */ @@ -305,7 +304,7 @@ send_ip6_ping (vlib_main_t * vm, ip6_main_t * im, * source interface. */ vnet_buffer (p0)->sw_if_index[VLIB_TX] = - ip6_fib_table_get_index_for_sw_if_index(sw_if_index); + ip6_fib_table_get_index_for_sw_if_index (sw_if_index); } if (~0 == sw_if_index) @@ -321,7 +320,7 @@ send_ip6_ping (vlib_main_t * vm, ip6_main_t * im, /* Fill in ip6 header fields */ h0->ip6.ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 (0x6 << 28); - h0->ip6.payload_length = 0; /* Set below */ + h0->ip6.payload_length = 0; /* Set below */ h0->ip6.protocol = IP_PROTOCOL_ICMP6; h0->ip6.hop_limit = 255; h0->ip6.dst_address = *pa6; @@ -364,11 +363,11 @@ send_ip6_ping (vlib_main_t * vm, ip6_main_t * im, static send_ip46_ping_result_t send_ip4_ping (vlib_main_t * vm, - ip4_main_t * im, - u32 table_id, - ip4_address_t * pa4, - u32 sw_if_index, - u16 seq_host, u16 id_host, u16 data_len, u8 verbose) + ip4_main_t * im, + u32 table_id, + ip4_address_t * pa4, + u32 sw_if_index, + u16 seq_host, u16 id_host, u16 data_len, u8 verbose) { icmp4_echo_request_header_t *h0; u32 bi0 = 0; @@ -388,20 +387,21 @@ send_ip4_ping (vlib_main_t * vm, * that the destination resolves via. */ if (~0 == sw_if_index) - { + { fib_node_index_t fib_entry_index; u32 fib_index; - fib_index = ip4_fib_index_from_table_id(table_id); + fib_index = ip4_fib_index_from_table_id (table_id); if (~0 == fib_index) - { - vlib_buffer_free (vm, &bi0, 1); - return SEND_PING_NO_TABLE; - } - - fib_entry_index = ip4_fib_table_lookup(ip4_fib_get(fib_index), pa4, 32); - sw_if_index = fib_entry_get_resolving_interface(fib_entry_index); + { + vlib_buffer_free (vm, &bi0, 1); + return SEND_PING_NO_TABLE; + } + + fib_entry_index = + ip4_fib_table_lookup (ip4_fib_get (fib_index), pa4, 32); + sw_if_index = fib_entry_get_resolving_interface (fib_entry_index); /* * Set the TX interface to force ip-lookup to use the user's table ID */ @@ -414,7 +414,7 @@ send_ip4_ping (vlib_main_t * vm, * source interface. */ vnet_buffer (p0)->sw_if_index[VLIB_TX] = - ip4_fib_table_get_index_for_sw_if_index(sw_if_index); + ip4_fib_table_get_index_for_sw_if_index (sw_if_index); } if (~0 == sw_if_index) @@ -431,7 +431,7 @@ send_ip4_ping (vlib_main_t * vm, h0->ip4.checksum = 0; h0->ip4.ip_version_and_header_length = 0x45; h0->ip4.tos = 0; - h0->ip4.length = 0; /* Set below */ + h0->ip4.length = 0; /* Set below */ h0->ip4.fragment_id = 0; h0->ip4.flags_and_fragment_offset = 0; h0->ip4.ttl = 0xff; @@ -444,14 +444,14 @@ send_ip4_ping (vlib_main_t * vm, if (PREDICT_TRUE (if_add_index0 != ~0)) { ip_interface_address_t *if_add = - pool_elt_at_index (lm->if_address_pool, if_add_index0); + pool_elt_at_index (lm->if_address_pool, if_add_index0); ip4_address_t *if_ip = ip_interface_address_get_address (lm, if_add); h0->ip4.src_address = *if_ip; if (verbose) - { - vlib_cli_output (vm, "Source address: %U", - format_ip4_address, &h0->ip4.src_address); - } + { + vlib_cli_output (vm, "Source address: %U", + format_ip4_address, &h0->ip4.src_address); + } } /* Fill in icmp fields */ @@ -466,7 +466,7 @@ send_ip4_ping (vlib_main_t * vm, /* Fix up the lengths */ h0->ip4.length = clib_host_to_net_u16 (data_len + sizeof (icmp46_header_t) + - sizeof (ip4_header_t)); + sizeof (ip4_header_t)); p0->current_length = clib_net_to_host_u16 (h0->ip4.length); @@ -474,7 +474,8 @@ send_ip4_ping (vlib_main_t * vm, h0->ip4.checksum = ip4_header_checksum (&(h0->ip4)); h0->icmp.checksum = ~ip_csum_fold (ip_incremental_checksum (0, &(h0->icmp), - p0->current_length - sizeof (ip4_header_t))); + p0->current_length - + sizeof (ip4_header_t))); /* Enqueue the packet right now */ f = vlib_get_frame_to_node (vm, ip4_lookup_node.index); @@ -490,25 +491,23 @@ send_ip4_ping (vlib_main_t * vm, static void print_ip6_icmp_reply (vlib_main_t * vm, u32 bi0) { - vlib_buffer_t *b0 = vlib_get_buffer (vm, - bi0); + vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0); icmp6_echo_request_header_t *h0 = vlib_buffer_get_current (b0); f64 rtt = vlib_time_now (vm) - h0->icmp_echo.time_sent; vlib_cli_output (vm, - "%d bytes from %U: icmp_seq=%d ttl=%d time=%.4f ms", - clib_host_to_net_u16 (h0->ip6.payload_length), - format_ip6_address, - &h0->ip6.src_address, - clib_host_to_net_u16 (h0->icmp_echo.seq), - h0->ip6.hop_limit, rtt * 1000.0); + "%d bytes from %U: icmp_seq=%d ttl=%d time=%.4f ms", + clib_host_to_net_u16 (h0->ip6.payload_length), + format_ip6_address, + &h0->ip6.src_address, + clib_host_to_net_u16 (h0->icmp_echo.seq), + h0->ip6.hop_limit, rtt * 1000.0); } static void print_ip4_icmp_reply (vlib_main_t * vm, u32 bi0) { - vlib_buffer_t *b0 = vlib_get_buffer (vm, - bi0); + vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0); icmp4_echo_request_header_t *h0 = vlib_buffer_get_current (b0); f64 rtt = vlib_time_now (vm) - h0->icmp_echo.time_sent; u32 rcvd_icmp_len = @@ -516,12 +515,12 @@ print_ip4_icmp_reply (vlib_main_t * vm, u32 bi0) (4 * (0xF & h0->ip4.ip_version_and_header_length)); vlib_cli_output (vm, - "%d bytes from %U: icmp_seq=%d ttl=%d time=%.4f ms", - rcvd_icmp_len, - format_ip4_address, - &h0->ip4.src_address, - clib_host_to_net_u16 (h0->icmp_echo.seq), - h0->ip4.ttl, rtt * 1000.0); + "%d bytes from %U: icmp_seq=%d ttl=%d time=%.4f ms", + rcvd_icmp_len, + format_ip4_address, + &h0->ip4.src_address, + clib_host_to_net_u16 (h0->icmp_echo.seq), + h0->ip4.ttl, rtt * 1000.0); } @@ -534,9 +533,9 @@ print_ip4_icmp_reply (vlib_main_t * vm, u32 bi0) static void run_ping_ip46_address (vlib_main_t * vm, u32 table_id, ip4_address_t * pa4, - ip6_address_t * pa6, u32 sw_if_index, - f64 ping_interval, u32 ping_repeat, u32 data_len, - u32 verbose) + ip6_address_t * pa6, u32 sw_if_index, + f64 ping_interval, u32 ping_repeat, u32 data_len, + u32 verbose) { int i; ping_main_t *pm = &ping_main; @@ -549,10 +548,10 @@ run_ping_ip46_address (vlib_main_t * vm, u32 table_id, ip4_address_t * pa4, static u32 rand_seed = 0; - if (PREDICT_FALSE(!rand_seed)) - rand_seed = random_default_seed(); + if (PREDICT_FALSE (!rand_seed)) + rand_seed = random_default_seed (); - icmp_id = random_u32(&rand_seed) & 0xffff; + icmp_id = random_u32 (&rand_seed) & 0xffff; while (hash_get (pm->ping_run_by_icmp_id, icmp_id)) { @@ -572,78 +571,78 @@ run_ping_ip46_address (vlib_main_t * vm, u32 table_id, ip4_address_t * pa4, pr = vec_elt_at_index (pm->ping_runs, ping_run_index); pr->curr_seq = i; if (pa6 && - (SEND_PING_OK == send_ip6_ping (vm, ping_main.ip6_main, table_id, pa6, - sw_if_index, i, icmp_id, data_len, - verbose))) - { - n_requests++; - } + (SEND_PING_OK == + send_ip6_ping (vm, ping_main.ip6_main, table_id, pa6, sw_if_index, + i, icmp_id, data_len, verbose))) + { + n_requests++; + } if (pa4 && - (SEND_PING_OK == send_ip4_ping (vm, ping_main.ip4_main, table_id, pa4, - sw_if_index, i, icmp_id, data_len, - verbose))) - { - n_requests++; - } + (SEND_PING_OK == + send_ip4_ping (vm, ping_main.ip4_main, table_id, pa4, sw_if_index, + i, icmp_id, data_len, verbose))) + { + n_requests++; + } while ((i <= ping_repeat) - && - ((sleep_interval = - time_ping_sent + ping_interval - vlib_time_now (vm)) > 0.0)) - { - uword event_type, *event_data = 0; - vlib_process_wait_for_event_or_clock (vm, sleep_interval); - event_type = vlib_process_get_events (vm, &event_data); - switch (event_type) - { - case ~0: /* no events => timeout */ - break; - case PING_RESPONSE_IP6: - { - int i; - for (i = 0; i < vec_len (event_data); i++) - { - u32 bi0 = event_data[0]; - print_ip6_icmp_reply (vm, bi0); - n_replies++; - if (0 != bi0) - { - vlib_buffer_free (vm, &bi0, 1); - } - } - } - break; - case PING_RESPONSE_IP4: - { - int i; - for (i = 0; i < vec_len (event_data); i++) - { - u32 bi0 = event_data[0]; - print_ip4_icmp_reply (vm, bi0); - n_replies++; - if (0 != bi0) - { - vlib_buffer_free (vm, &bi0, 1); - } - } - } - break; - default: - /* someone pressed a key, abort */ - vlib_cli_output (vm, "Aborted due to a keypress."); - i = 1 + ping_repeat; - break; - } - } + && + ((sleep_interval = + time_ping_sent + ping_interval - vlib_time_now (vm)) > 0.0)) + { + uword event_type, *event_data = 0; + vlib_process_wait_for_event_or_clock (vm, sleep_interval); + event_type = vlib_process_get_events (vm, &event_data); + switch (event_type) + { + case ~0: /* no events => timeout */ + break; + case PING_RESPONSE_IP6: + { + int i; + for (i = 0; i < vec_len (event_data); i++) + { + u32 bi0 = event_data[0]; + print_ip6_icmp_reply (vm, bi0); + n_replies++; + if (0 != bi0) + { + vlib_buffer_free (vm, &bi0, 1); + } + } + } + break; + case PING_RESPONSE_IP4: + { + int i; + for (i = 0; i < vec_len (event_data); i++) + { + u32 bi0 = event_data[0]; + print_ip4_icmp_reply (vm, bi0); + n_replies++; + if (0 != bi0) + { + vlib_buffer_free (vm, &bi0, 1); + } + } + } + break; + default: + /* someone pressed a key, abort */ + vlib_cli_output (vm, "Aborted due to a keypress."); + i = 1 + ping_repeat; + break; + } + } } vlib_cli_output (vm, "\n"); { float loss = (0 == n_requests) ? 0 : 100.0 * ((float) n_requests - - (float) n_replies) / (float) n_requests; + (float) n_replies) / (float) n_requests; vlib_cli_output (vm, - "Statistics: %u sent, %u received, %f%% packet loss\n", - n_requests, n_replies, loss); + "Statistics: %u sent, %u received, %f%% packet loss\n", + n_requests, n_replies, loss); /* Reset pr: running ping in other process could have changed pm->ping_runs */ pr = vec_elt_at_index (pm->ping_runs, ping_run_index); hash_unset (pm->ping_run_by_icmp_id, icmp_id); @@ -657,7 +656,7 @@ run_ping_ip46_address (vlib_main_t * vm, u32 table_id, ip4_address_t * pa4, static clib_error_t * ping_ip_address (vlib_main_t * vm, - unformat_input_t * input, vlib_cli_command_t * cmd) + unformat_input_t * input, vlib_cli_command_t * cmd) { ip4_address_t a4; ip6_address_t a6; @@ -685,37 +684,37 @@ ping_ip_address (vlib_main_t * vm, else if (unformat (input, "ipv4")) { if (unformat (input, "%U", unformat_ip4_address, &a4)) - { - ping_ip4 = 1; - } + { + ping_ip4 = 1; + } else - { - error = - clib_error_return (0, - "expecting IPv4 address but got `%U'", - format_unformat_error, input); - } + { + error = + clib_error_return (0, + "expecting IPv4 address but got `%U'", + format_unformat_error, input); + } } else if (unformat (input, "ipv6")) { if (unformat (input, "%U", unformat_ip6_address, &a6)) - { - ping_ip6 = 1; - } + { + ping_ip6 = 1; + } else - { - error = - clib_error_return (0, - "expecting IPv6 address but got `%U'", - format_unformat_error, input); - } + { + error = + clib_error_return (0, + "expecting IPv6 address but got `%U'", + format_unformat_error, input); + } } else { error = - clib_error_return (0, - "expecting IP4/IP6 address `%U'. Usage: ping <addr> [source <intf>] [size <datasz>] [repeat <count>] [verbose]", - format_unformat_error, input); + clib_error_return (0, + "expecting IP4/IP6 address `%U'. Usage: ping <addr> [source <intf>] [size <datasz>] [repeat <count>] [verbose]", + format_unformat_error, input); goto done; } @@ -723,92 +722,92 @@ ping_ip_address (vlib_main_t * vm, if (!ping_ip4 && (unformat (input, "ipv4"))) { if (unformat (input, "%U", unformat_ip4_address, &a4)) - { - ping_ip4 = 1; - } + { + ping_ip4 = 1; + } } else if (!ping_ip6 && (unformat (input, "ipv6"))) { if (unformat (input, "%U", unformat_ip6_address, &a6)) - { - ping_ip6 = 1; - } + { + ping_ip6 = 1; + } } /* parse the rest of the parameters in a cycle */ while (!unformat_eof (input, NULL)) { if (unformat (input, "source")) - { - if (!unformat_user - (input, unformat_vnet_sw_interface, vnm, &sw_if_index)) - { - error = - clib_error_return (0, - "unknown interface `%U'", - format_unformat_error, input); - goto done; - } - } + { + if (!unformat_user + (input, unformat_vnet_sw_interface, vnm, &sw_if_index)) + { + error = + clib_error_return (0, + "unknown interface `%U'", + format_unformat_error, input); + goto done; + } + } else if (unformat (input, "size")) - { - if (!unformat (input, "%u", &data_len)) - { - error = - clib_error_return (0, - "expecting size but got `%U'", - format_unformat_error, input); - goto done; - } - } + { + if (!unformat (input, "%u", &data_len)) + { + error = + clib_error_return (0, + "expecting size but got `%U'", + format_unformat_error, input); + goto done; + } + } else if (unformat (input, "table-id")) - { - if (!unformat (input, "du", &table_id)) - { - error = - clib_error_return (0, - "expecting table-id but got `%U'", - format_unformat_error, input); - goto done; - } - } + { + if (!unformat (input, "du", &table_id)) + { + error = + clib_error_return (0, + "expecting table-id but got `%U'", + format_unformat_error, input); + goto done; + } + } else if (unformat (input, "interval")) - { - if (!unformat (input, "%f", &ping_interval)) - { - error = - clib_error_return (0, - "expecting interval (floating point number) got `%U'", - format_unformat_error, input); - goto done; - } - } + { + if (!unformat (input, "%f", &ping_interval)) + { + error = + clib_error_return (0, + "expecting interval (floating point number) got `%U'", + format_unformat_error, input); + goto done; + } + } else if (unformat (input, "repeat")) - { - if (!unformat (input, "%u", &ping_repeat)) - { - error = - clib_error_return (0, - "expecting repeat count but got `%U'", - format_unformat_error, input); - goto done; - } - } + { + if (!unformat (input, "%u", &ping_repeat)) + { + error = + clib_error_return (0, + "expecting repeat count but got `%U'", + format_unformat_error, input); + goto done; + } + } else if (unformat (input, "verbose")) - { - verbose = 1; - } + { + verbose = 1; + } else - { - error = clib_error_return (0, "unknown input `%U'", - format_unformat_error, input); - goto done; - } + { + error = clib_error_return (0, "unknown input `%U'", + format_unformat_error, input); + goto done; + } } - run_ping_ip46_address (vm, table_id, ping_ip4 ? &a4 : NULL, ping_ip6 ? &a6 : NULL, - sw_if_index, ping_interval, ping_repeat, data_len, - verbose); + run_ping_ip46_address (vm, table_id, ping_ip4 ? &a4 : NULL, + ping_ip6 ? &a6 : NULL, sw_if_index, ping_interval, + ping_repeat, data_len, verbose); done: return error; } @@ -859,7 +858,10 @@ VLIB_CLI_COMMAND (ping_command, static) = { .path = "ping", .function = ping_ip_address, - .short_help = "ping {<ip-addr> | ipv4 <ip4-addr> | ipv6 <ip6-addr>} [ipv4 <ip4-addr> | ipv6 <ip6-addr>] [source <interface>] [size <pktsize>] [interval <sec>] [repeat <cnt>] [table-id <id>] [verbose]", + .short_help = "ping {<ip-addr> | ipv4 <ip4-addr> | ipv6 <ip6-addr>}" + " [ipv4 <ip4-addr> | ipv6 <ip6-addr>] [source <interface>]" + " [size <pktsize>] [interval <sec>] [repeat <cnt>] [table-id <id>]" + " [verbose]", }; /* *INDENT-ON* */ @@ -871,8 +873,16 @@ ping_cli_init (vlib_main_t * vm) pm->ip4_main = &ip4_main; icmp6_register_type (vm, ICMP6_echo_reply, ip6_icmp_echo_reply_node.index); ip4_icmp_register_type (vm, ICMP4_echo_reply, - ip4_icmp_echo_reply_node.index); + ip4_icmp_echo_reply_node.index); return 0; } VLIB_INIT_FUNCTION (ping_cli_init); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/ping.h b/vnet/vnet/ip/ping.h index 58c6f4b4b6b..8f41f45c5f9 100644 --- a/vnet/vnet/ip/ping.h +++ b/vnet/vnet/ip/ping.h @@ -20,12 +20,14 @@ #include <vnet/ip/lookup.h> -typedef enum { +typedef enum +{ PING_RESPONSE_IP6 = 42, PING_RESPONSE_IP4, } ping_response_type_t; -typedef enum { +typedef enum +{ SEND_PING_OK = 0, SEND_PING_ALLOC_FAIL, SEND_PING_NO_INTERFACE, @@ -35,13 +37,15 @@ typedef enum { /* * Currently running ping command. */ -typedef struct ping_run_t { +typedef struct ping_run_t +{ u16 icmp_id; u16 curr_seq; uword cli_process_id; } ping_run_t; -typedef struct ping_main_t { +typedef struct ping_main_t +{ ip6_main_t *ip6_main; ip4_main_t *ip4_main; ping_run_t *ping_runs; @@ -57,28 +61,28 @@ ping_main_t ping_main; #define PING_MAXIMUM_DATA_SIZE 2000 -typedef CLIB_PACKED (struct { - u16 id; - u16 seq; - f64 time_sent; - u8 data[PING_MAXIMUM_DATA_SIZE]; -}) icmp46_echo_request_t; +typedef CLIB_PACKED (struct + { + u16 id; + u16 seq; f64 time_sent; u8 data[PING_MAXIMUM_DATA_SIZE]; + }) icmp46_echo_request_t; -typedef CLIB_PACKED (struct { - ip6_header_t ip6; - icmp46_header_t icmp; - icmp46_echo_request_t icmp_echo; -}) icmp6_echo_request_header_t; +typedef CLIB_PACKED (struct + { + ip6_header_t ip6; + icmp46_header_t icmp; icmp46_echo_request_t icmp_echo; + }) icmp6_echo_request_header_t; -typedef CLIB_PACKED(struct { - ip4_header_t ip4; - icmp46_header_t icmp; - icmp46_echo_request_t icmp_echo; -}) icmp4_echo_request_header_t; +typedef CLIB_PACKED (struct + { + ip4_header_t ip4; + icmp46_header_t icmp; icmp46_echo_request_t icmp_echo; + }) icmp4_echo_request_header_t; -typedef struct { +typedef struct +{ u16 id; u16 seq; u8 bound; @@ -87,13 +91,15 @@ typedef struct { -typedef enum { +typedef enum +{ ICMP6_ECHO_REPLY_NEXT_DROP, ICMP6_ECHO_REPLY_NEXT_PUNT, ICMP6_ECHO_REPLY_N_NEXT, } icmp6_echo_reply_next_t; -typedef enum { +typedef enum +{ ICMP4_ECHO_REPLY_NEXT_DROP, ICMP4_ECHO_REPLY_NEXT_PUNT, ICMP4_ECHO_REPLY_N_NEXT, diff --git a/vnet/vnet/ip/punt.c b/vnet/vnet/ip/punt.c index 30d3deb6fa5..9c735128a3b 100644 --- a/vnet/vnet/ip/punt.c +++ b/vnet/vnet/ip/punt.c @@ -176,7 +176,7 @@ VLIB_REGISTER_NODE (udp4_punt_node) = { }, }; -VLIB_NODE_FUNCTION_MULTIARCH (udp4_punt_node, udp4_punt) +VLIB_NODE_FUNCTION_MULTIARCH (udp4_punt_node, udp4_punt); VLIB_REGISTER_NODE (udp6_punt_node) = { .function = udp6_punt, @@ -194,10 +194,10 @@ VLIB_REGISTER_NODE (udp6_punt_node) = { #undef _ }, }; - -VLIB_NODE_FUNCTION_MULTIARCH (udp6_punt_node, udp6_punt) /* *INDENT-ON* */ +VLIB_NODE_FUNCTION_MULTIARCH (udp6_punt_node, udp6_punt);; + /** * @brief Request IP traffic punt to the local TCP/IP stack. * diff --git a/vnet/vnet/ip/tcp_packet.h b/vnet/vnet/ip/tcp_packet.h index 5a9a420ebc5..ed402403592 100644 --- a/vnet/vnet/ip/tcp_packet.h +++ b/vnet/vnet/ip/tcp_packet.h @@ -51,23 +51,28 @@ _ (ECE) \ _ (CWR) -enum { +enum +{ #define _(f) TCP_FLAG_BIT_##f, foreach_tcp_flag #undef _ - TCP_N_FLAG_BITS, + TCP_N_FLAG_BITS, #define _(f) TCP_FLAG_##f = 1 << TCP_FLAG_BIT_##f, foreach_tcp_flag #undef _ }; -typedef struct { +typedef struct +{ /* Source and destination port. */ - union { - union { - struct { - u16 src, dst; + union + { + union + { + struct + { + u16 src, dst; }; u32 src_and_dst; } ports; @@ -96,10 +101,13 @@ typedef struct { always_inline int tcp_header_bytes (tcp_header_t * t) -{ return (t->tcp_header_u32s_and_reserved >> 4) * sizeof (u32); } +{ + return (t->tcp_header_u32s_and_reserved >> 4) * sizeof (u32); +} /* TCP options. */ -typedef enum tcp_option_type { +typedef enum tcp_option_type +{ TCP_OPTION_END = 0, TCP_OPTION_NOP = 1, TCP_OPTION_MSS = 2, @@ -110,8 +118,9 @@ typedef enum tcp_option_type { } tcp_option_type_t; /* All except NOP and END have 1 byte length field. */ -typedef struct { - tcp_option_type_t type : 8; +typedef struct +{ + tcp_option_type_t type:8; /* Length of this option in bytes. */ u8 length; @@ -119,3 +128,11 @@ typedef struct { #endif /* included_tcp_packet_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/udp.h b/vnet/vnet/ip/udp.h index f8ff777e275..03c62e0b684 100644 --- a/vnet/vnet/ip/udp.h +++ b/vnet/vnet/ip/udp.h @@ -26,7 +26,8 @@ #include <vnet/pg/pg.h> #include <vnet/ip/format.h> -typedef enum { +typedef enum +{ #define udp_error(n,s) UDP_ERROR_##n, #include <vnet/ip/udp_error.def> #undef udp_error @@ -56,22 +57,24 @@ _ (4342, lisp_cp6) \ _ (4790, vxlan6_gpe) \ _ (6633, vpath6_3) -typedef enum { +typedef enum +{ #define _(n,f) UDP_DST_PORT_##f = n, - foreach_udp4_dst_port - foreach_udp6_dst_port + foreach_udp4_dst_port foreach_udp6_dst_port #undef _ } udp_dst_port_t; -typedef enum { +typedef enum +{ #define _(n,f) UDP6_DST_PORT_##f = n, foreach_udp6_dst_port #undef _ } udp6_dst_port_t; -typedef struct { +typedef struct +{ /* Name (a c string). */ - char * name; + char *name; /* GRE protocol type in host byte order. */ udp_dst_port_t dst_port; @@ -83,27 +86,29 @@ typedef struct { u32 next_index; } udp_dst_port_info_t; -typedef enum { +typedef enum +{ UDP_IP6 = 0, - UDP_IP4, /* the code is full of is_ip4... */ + UDP_IP4, /* the code is full of is_ip4... */ N_UDP_AF, } udp_af_t; -typedef struct { - udp_dst_port_info_t * dst_port_infos [N_UDP_AF]; +typedef struct +{ + udp_dst_port_info_t *dst_port_infos[N_UDP_AF]; /* Hash tables mapping name/protocol to protocol info index. */ - uword * dst_port_info_by_name[N_UDP_AF]; - uword * dst_port_info_by_dst_port[N_UDP_AF]; + uword *dst_port_info_by_name[N_UDP_AF]; + uword *dst_port_info_by_dst_port[N_UDP_AF]; /* convenience */ - vlib_main_t * vlib_main; + vlib_main_t *vlib_main; } udp_main_t; always_inline udp_dst_port_info_t * udp_get_dst_port_info (udp_main_t * um, udp_dst_port_t dst_port, u8 is_ip4) { - uword * p = hash_get (um->dst_port_info_by_dst_port[is_ip4], dst_port); + uword *p = hash_get (um->dst_port_info_by_dst_port[is_ip4], dst_port); return p ? vec_elt_at_index (um->dst_port_infos[is_ip4], p[0]) : 0; } @@ -113,108 +118,108 @@ format_function_t format_udp_rx_trace; unformat_function_t unformat_udp_header; void udp_register_dst_port (vlib_main_t * vm, - udp_dst_port_t dst_port, - u32 node_index, u8 is_ip4); + udp_dst_port_t dst_port, + u32 node_index, u8 is_ip4); -void udp_punt_unknown(vlib_main_t * vm, u8 is_ip4, u8 is_add); +void udp_punt_unknown (vlib_main_t * vm, u8 is_ip4, u8 is_add); always_inline void -ip_udp_fixup_one (vlib_main_t * vm, - vlib_buffer_t * b0, - u8 is_ip4) +ip_udp_fixup_one (vlib_main_t * vm, vlib_buffer_t * b0, u8 is_ip4) { u16 new_l0; - udp_header_t * udp0; + udp_header_t *udp0; if (is_ip4) { - ip4_header_t * ip0; + ip4_header_t *ip0; ip_csum_t sum0; u16 old_l0 = 0; - ip0 = vlib_buffer_get_current(b0); + ip0 = vlib_buffer_get_current (b0); /* fix the <bleep>ing outer-IP checksum */ sum0 = ip0->checksum; /* old_l0 always 0, see the rewrite setup */ new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)); - sum0 = ip_csum_update(sum0, old_l0, new_l0, ip4_header_t, - length /* changed member */); + sum0 = ip_csum_update (sum0, old_l0, new_l0, ip4_header_t, + length /* changed member */ ); ip0->checksum = ip_csum_fold (sum0); ip0->length = new_l0; /* Fix UDP length */ - udp0 = (udp_header_t *)(ip0+1); + udp0 = (udp_header_t *) (ip0 + 1); new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) - - sizeof (*ip0)); + - sizeof (*ip0)); udp0->length = new_l0; } else { - ip6_header_t * ip0; + ip6_header_t *ip0; int bogus0; - ip0 = vlib_buffer_get_current(b0); + ip0 = vlib_buffer_get_current (b0); new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) - - sizeof (*ip0)); + - sizeof (*ip0)); ip0->payload_length = new_l0; /* Fix UDP length */ - udp0 = (udp_header_t *)(ip0+1); + udp0 = (udp_header_t *) (ip0 + 1); udp0->length = new_l0; - udp0->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b0, ip0, &bogus0); - ASSERT(bogus0 == 0); + udp0->checksum = + ip6_tcp_udp_icmp_compute_checksum (vm, b0, ip0, &bogus0); + ASSERT (bogus0 == 0); if (udp0->checksum == 0) - udp0->checksum = 0xffff; + udp0->checksum = 0xffff; } } + always_inline void ip_udp_encap_one (vlib_main_t * vm, vlib_buffer_t * b0, u8 * ec0, word ec_len, - u8 is_ip4) + u8 is_ip4) { - vlib_buffer_advance (b0, - ec_len); + vlib_buffer_advance (b0, -ec_len); if (is_ip4) { - ip4_header_t * ip0; + ip4_header_t *ip0; - ip0 = vlib_buffer_get_current(b0); + ip0 = vlib_buffer_get_current (b0); /* Apply the encap string. */ - clib_memcpy(ip0, ec0, ec_len); - ip_udp_fixup_one(vm, b0, 1); + clib_memcpy (ip0, ec0, ec_len); + ip_udp_fixup_one (vm, b0, 1); } else { - ip6_header_t * ip0; + ip6_header_t *ip0; - ip0 = vlib_buffer_get_current(b0); + ip0 = vlib_buffer_get_current (b0); /* Apply the encap string. */ - clib_memcpy(ip0, ec0, ec_len); - ip_udp_fixup_one(vm, b0, 0); + clib_memcpy (ip0, ec0, ec_len); + ip_udp_fixup_one (vm, b0, 0); } } always_inline void ip_udp_encap_two (vlib_main_t * vm, vlib_buffer_t * b0, vlib_buffer_t * b1, - u8 * ec0, u8 * ec1, word ec_len, u8 is_v4) + u8 * ec0, u8 * ec1, word ec_len, u8 is_v4) { u16 new_l0, new_l1; - udp_header_t * udp0, *udp1; + udp_header_t *udp0, *udp1; - ASSERT(_vec_len(ec0) == _vec_len(ec1)); + ASSERT (_vec_len (ec0) == _vec_len (ec1)); vlib_buffer_advance (b0, -ec_len); vlib_buffer_advance (b1, -ec_len); if (is_v4) { - ip4_header_t * ip0, *ip1; + ip4_header_t *ip0, *ip1; ip_csum_t sum0, sum1; u16 old_l0 = 0, old_l1 = 0; @@ -233,10 +238,10 @@ ip_udp_encap_two (vlib_main_t * vm, vlib_buffer_t * b0, vlib_buffer_t * b1, new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)); new_l1 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b1)); - sum0 = ip_csum_update(sum0, old_l0, new_l0, ip4_header_t, - length /* changed member */); - sum1 = ip_csum_update(sum1, old_l1, new_l1, ip4_header_t, - length /* changed member */); + sum0 = ip_csum_update (sum0, old_l0, new_l0, ip4_header_t, + length /* changed member */ ); + sum1 = ip_csum_update (sum1, old_l1, new_l1, ip4_header_t, + length /* changed member */ ); ip0->checksum = ip_csum_fold (sum0); ip1->checksum = ip_csum_fold (sum1); @@ -248,49 +253,61 @@ ip_udp_encap_two (vlib_main_t * vm, vlib_buffer_t * b0, vlib_buffer_t * b1, udp0 = (udp_header_t *) (ip0 + 1); udp1 = (udp_header_t *) (ip1 + 1); - new_l0 = clib_host_to_net_u16 ( - vlib_buffer_length_in_chain (vm, b0) - sizeof(*ip0)); - new_l1 = clib_host_to_net_u16 ( - vlib_buffer_length_in_chain (vm, b1) - sizeof(*ip1)); + new_l0 = + clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) - + sizeof (*ip0)); + new_l1 = + clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b1) - + sizeof (*ip1)); udp0->length = new_l0; udp1->length = new_l1; } else { - ip6_header_t * ip0, * ip1; + ip6_header_t *ip0, *ip1; int bogus0, bogus1; - ip0 = vlib_buffer_get_current(b0); - ip1 = vlib_buffer_get_current(b1); + ip0 = vlib_buffer_get_current (b0); + ip1 = vlib_buffer_get_current (b1); /* Apply the encap string. */ - clib_memcpy(ip0, ec0, ec_len); - clib_memcpy(ip1, ec1, ec_len); + clib_memcpy (ip0, ec0, ec_len); + clib_memcpy (ip1, ec1, ec_len); new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) - - sizeof (*ip0)); + - sizeof (*ip0)); new_l1 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b1) - - sizeof (*ip1)); + - sizeof (*ip1)); ip0->payload_length = new_l0; ip1->payload_length = new_l1; /* Fix UDP length */ - udp0 = (udp_header_t *)(ip0+1); - udp1 = (udp_header_t *)(ip1+1); + udp0 = (udp_header_t *) (ip0 + 1); + udp1 = (udp_header_t *) (ip1 + 1); udp0->length = new_l0; udp1->length = new_l1; - udp0->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b0, ip0, &bogus0); - udp1->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b1, ip1, &bogus1); - ASSERT(bogus0 == 0); - ASSERT(bogus1 == 0); + udp0->checksum = + ip6_tcp_udp_icmp_compute_checksum (vm, b0, ip0, &bogus0); + udp1->checksum = + ip6_tcp_udp_icmp_compute_checksum (vm, b1, ip1, &bogus1); + ASSERT (bogus0 == 0); + ASSERT (bogus1 == 0); if (udp0->checksum == 0) - udp0->checksum = 0xffff; + udp0->checksum = 0xffff; if (udp1->checksum == 0) - udp1->checksum = 0xffff; + udp1->checksum = 0xffff; } } #endif /* included_udp_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/udp_format.c b/vnet/vnet/ip/udp_format.c index dd54095908c..abdf561e8c9 100644 --- a/vnet/vnet/ip/udp_format.c +++ b/vnet/vnet/ip/udp_format.c @@ -40,9 +40,10 @@ #include <vnet/ip/ip.h> /* Format UDP header. */ -u8 * format_udp_header (u8 * s, va_list * args) +u8 * +format_udp_header (u8 * s, va_list * args) { - udp_header_t * udp = va_arg (*args, udp_header_t *); + udp_header_t *udp = va_arg (*args, udp_header_t *); u32 max_header_bytes = va_arg (*args, u32); uword indent; u32 header_bytes = sizeof (udp[0]); @@ -66,18 +67,25 @@ u8 * format_udp_header (u8 * s, va_list * args) /* Recurse into next protocol layer. */ if (max_header_bytes != 0 && header_bytes < max_header_bytes) { - ip_main_t * im = &ip_main; - tcp_udp_port_info_t * pi; + ip_main_t *im = &ip_main; + tcp_udp_port_info_t *pi; pi = ip_get_tcp_udp_port_info (im, udp->dst_port); if (pi && pi->format_header) s = format (s, "\n%U%U", - format_white_space, indent - 2, - pi->format_header, + format_white_space, indent - 2, pi->format_header, /* next protocol header */ (udp + 1), max_header_bytes - sizeof (udp[0])); } return s; } + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/udp_init.c b/vnet/vnet/ip/udp_init.c index 40ca032923c..1241ca4ab32 100644 --- a/vnet/vnet/ip/udp_init.c +++ b/vnet/vnet/ip/udp_init.c @@ -42,17 +42,17 @@ clib_error_t * udp_init (vlib_main_t * vm) { - ip_main_t * im = &ip_main; - ip_protocol_info_t * pi; - clib_error_t * error; + ip_main_t *im = &ip_main; + ip_protocol_info_t *pi; + clib_error_t *error; error = vlib_call_init_function (vm, ip_main_init); - if (! error) + if (!error) { pi = ip_get_protocol_info (im, IP_PROTOCOL_UDP); if (pi == 0) - return clib_error_return (0, "UDP protocol info AWOL"); + return clib_error_return (0, "UDP protocol info AWOL"); pi->format_header = format_udp_header; pi->unformat_pg_edit = unformat_pg_udp_header; } @@ -61,3 +61,11 @@ udp_init (vlib_main_t * vm) } VLIB_INIT_FUNCTION (udp_init); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/udp_local.c b/vnet/vnet/ip/udp_local.c index e4f64a5efe6..13ab6e4fb32 100644 --- a/vnet/vnet/ip/udp_local.c +++ b/vnet/vnet/ip/udp_local.c @@ -29,36 +29,40 @@ udp_main_t udp_main; _ (ICMP4_ERROR, "ip4-icmp-error") \ _ (ICMP6_ERROR, "ip6-icmp-error") -typedef enum { +typedef enum +{ #define _(s,n) UDP_INPUT_NEXT_##s, foreach_udp_input_next #undef _ - UDP_INPUT_N_NEXT, + UDP_INPUT_N_NEXT, } udp_input_next_t; -typedef struct { +typedef struct +{ u16 src_port; u16 dst_port; u8 bound; } udp_rx_trace_t; -u8 * format_udp_rx_trace (u8 * s, va_list * args) +u8 * +format_udp_rx_trace (u8 * s, va_list * args) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); - udp_rx_trace_t * t = va_arg (*args, udp_rx_trace_t *); - + udp_rx_trace_t *t = va_arg (*args, udp_rx_trace_t *); + s = format (s, "UDP: src-port %d dst-port %d%s", - clib_net_to_host_u16(t->src_port), - clib_net_to_host_u16(t->dst_port), - t->bound ? "" : " (no listener)"); + clib_net_to_host_u16 (t->src_port), + clib_net_to_host_u16 (t->dst_port), + t->bound ? "" : " (no listener)"); return s; } -typedef struct { +typedef struct +{ /* Sparse vector mapping udp dst_port in network byte order to next index. */ - u16 * next_by_dst_port; + u16 *next_by_dst_port; u8 punt_unknown; } udp_input_runtime_t; @@ -67,14 +71,13 @@ vlib_node_registration_t udp6_input_node; always_inline uword udp46_input_inline (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * from_frame, - int is_ip4) + vlib_node_runtime_t * node, + vlib_frame_t * from_frame, int is_ip4) { - udp_input_runtime_t * rt = is_ip4 ? + udp_input_runtime_t *rt = is_ip4 ? (void *) vlib_node_get_runtime_data (vm, udp4_input_node.index) : (void *) vlib_node_get_runtime_data (vm, udp6_input_node.index); - __attribute__((unused)) u32 n_left_from, next_index, * from, * to_next; + __attribute__ ((unused)) u32 n_left_from, next_index, *from, *to_next; word n_no_listener = 0; u8 punt_unknown = rt->punt_unknown; @@ -87,21 +90,20 @@ udp46_input_inline (vlib_main_t * vm, { u32 n_left_to_next; - vlib_get_next_frame (vm, node, next_index, - to_next, n_left_to_next); + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); while (n_left_from >= 4 && n_left_to_next >= 2) { u32 bi0, bi1; - vlib_buffer_t * b0, * b1; - udp_header_t * h0 = 0, * h1 = 0; + vlib_buffer_t *b0, *b1; + udp_header_t *h0 = 0, *h1 = 0; u32 i0, i1, dst_port0, dst_port1; - u32 advance0, advance1; - u32 error0, next0, error1, next1; + u32 advance0, advance1; + u32 error0, next0, error1, next1; /* Prefetch next iteration. */ { - vlib_buffer_t * p2, * p3; + vlib_buffer_t *p2, *p3; p2 = vlib_get_buffer (vm, from[2]); p3 = vlib_get_buffer (vm, from[3]); @@ -125,165 +127,173 @@ udp46_input_inline (vlib_main_t * vm, b0 = vlib_get_buffer (vm, bi0); b1 = vlib_get_buffer (vm, bi1); - /* ip4/6_local hands us the ip header, not the udp header */ - if (is_ip4) - { - advance0 = sizeof(ip4_header_t); - advance1 = sizeof(ip4_header_t); - } - else - { - advance0 = sizeof(ip6_header_t); - advance1 = sizeof(ip6_header_t); - } - - if (PREDICT_FALSE(b0->current_length < advance0 + sizeof (*h0))) - { - error0 = UDP_ERROR_LENGTH_ERROR; - next0 = UDP_INPUT_NEXT_DROP; - } - else - { - vlib_buffer_advance (b0, advance0); - h0 = vlib_buffer_get_current (b0); - error0 = next0 = 0; - if (PREDICT_FALSE(clib_net_to_host_u16(h0->length) > - vlib_buffer_length_in_chain(vm, b0))) - { + /* ip4/6_local hands us the ip header, not the udp header */ + if (is_ip4) + { + advance0 = sizeof (ip4_header_t); + advance1 = sizeof (ip4_header_t); + } + else + { + advance0 = sizeof (ip6_header_t); + advance1 = sizeof (ip6_header_t); + } + + if (PREDICT_FALSE (b0->current_length < advance0 + sizeof (*h0))) + { + error0 = UDP_ERROR_LENGTH_ERROR; + next0 = UDP_INPUT_NEXT_DROP; + } + else + { + vlib_buffer_advance (b0, advance0); + h0 = vlib_buffer_get_current (b0); + error0 = next0 = 0; + if (PREDICT_FALSE (clib_net_to_host_u16 (h0->length) > + vlib_buffer_length_in_chain (vm, b0))) + { error0 = UDP_ERROR_LENGTH_ERROR; next0 = UDP_INPUT_NEXT_DROP; - } - } - - if (PREDICT_FALSE(b1->current_length < advance1 + sizeof (*h1))) - { - error1 = UDP_ERROR_LENGTH_ERROR; - next1 = UDP_INPUT_NEXT_DROP; - } - else - { - vlib_buffer_advance (b1, advance1); - h1 = vlib_buffer_get_current (b1); - error1 = next1 = 0; - if (PREDICT_FALSE(clib_net_to_host_u16(h1->length) > - vlib_buffer_length_in_chain(vm, b1))) - { + } + } + + if (PREDICT_FALSE (b1->current_length < advance1 + sizeof (*h1))) + { + error1 = UDP_ERROR_LENGTH_ERROR; + next1 = UDP_INPUT_NEXT_DROP; + } + else + { + vlib_buffer_advance (b1, advance1); + h1 = vlib_buffer_get_current (b1); + error1 = next1 = 0; + if (PREDICT_FALSE (clib_net_to_host_u16 (h1->length) > + vlib_buffer_length_in_chain (vm, b1))) + { error1 = UDP_ERROR_LENGTH_ERROR; next1 = UDP_INPUT_NEXT_DROP; - } - } + } + } /* Index sparse array with network byte order. */ dst_port0 = (error0 == 0) ? h0->dst_port : 0; dst_port1 = (error1 == 0) ? h1->dst_port : 0; sparse_vec_index2 (rt->next_by_dst_port, dst_port0, dst_port1, - &i0, &i1); - next0 = (error0 == 0) ? vec_elt(rt->next_by_dst_port, i0) : next0; - next1 = (error1 == 0) ? vec_elt(rt->next_by_dst_port, i1) : next1; - - if (PREDICT_FALSE(i0 == SPARSE_VEC_INVALID_INDEX)) - { - // move the pointer back so icmp-error can find the - // ip packet header - vlib_buffer_advance (b0, - (word)advance0); - - if (PREDICT_FALSE(punt_unknown)) - { - b0->error = node->errors[UDP_ERROR_PUNT]; + &i0, &i1); + next0 = (error0 == 0) ? vec_elt (rt->next_by_dst_port, i0) : next0; + next1 = (error1 == 0) ? vec_elt (rt->next_by_dst_port, i1) : next1; + + if (PREDICT_FALSE (i0 == SPARSE_VEC_INVALID_INDEX)) + { + // move the pointer back so icmp-error can find the + // ip packet header + vlib_buffer_advance (b0, -(word) advance0); + + if (PREDICT_FALSE (punt_unknown)) + { + b0->error = node->errors[UDP_ERROR_PUNT]; next0 = UDP_INPUT_NEXT_PUNT; } - else if (is_ip4) - { - icmp4_error_set_vnet_buffer(b0, ICMP4_destination_unreachable, - ICMP4_destination_unreachable_port_unreachable, 0); - next0 = UDP_INPUT_NEXT_ICMP4_ERROR; - n_no_listener ++; - } - else - { - icmp6_error_set_vnet_buffer(b0, ICMP6_destination_unreachable, - ICMP6_destination_unreachable_port_unreachable, 0); - next0 = UDP_INPUT_NEXT_ICMP6_ERROR; - n_no_listener ++; - } - } - else - { - b0->error = node->errors[UDP_ERROR_NONE]; - // advance to the payload - vlib_buffer_advance (b0, sizeof (*h0)); - } - - if (PREDICT_FALSE(i1 == SPARSE_VEC_INVALID_INDEX)) - { - // move the pointer back so icmp-error can find the - // ip packet header - vlib_buffer_advance (b1, - (word)advance1); - - if (PREDICT_FALSE(punt_unknown)) - { - b1->error = node->errors[UDP_ERROR_PUNT]; + else if (is_ip4) + { + icmp4_error_set_vnet_buffer (b0, + ICMP4_destination_unreachable, + ICMP4_destination_unreachable_port_unreachable, + 0); + next0 = UDP_INPUT_NEXT_ICMP4_ERROR; + n_no_listener++; + } + else + { + icmp6_error_set_vnet_buffer (b0, + ICMP6_destination_unreachable, + ICMP6_destination_unreachable_port_unreachable, + 0); + next0 = UDP_INPUT_NEXT_ICMP6_ERROR; + n_no_listener++; + } + } + else + { + b0->error = node->errors[UDP_ERROR_NONE]; + // advance to the payload + vlib_buffer_advance (b0, sizeof (*h0)); + } + + if (PREDICT_FALSE (i1 == SPARSE_VEC_INVALID_INDEX)) + { + // move the pointer back so icmp-error can find the + // ip packet header + vlib_buffer_advance (b1, -(word) advance1); + + if (PREDICT_FALSE (punt_unknown)) + { + b1->error = node->errors[UDP_ERROR_PUNT]; next1 = UDP_INPUT_NEXT_PUNT; } - else if (is_ip4) - { - icmp4_error_set_vnet_buffer(b1, ICMP4_destination_unreachable, - ICMP4_destination_unreachable_port_unreachable, 0); - next1 = UDP_INPUT_NEXT_ICMP4_ERROR; - n_no_listener ++; - } - else - { - icmp6_error_set_vnet_buffer(b1, ICMP6_destination_unreachable, - ICMP6_destination_unreachable_port_unreachable, 0); - next1 = UDP_INPUT_NEXT_ICMP6_ERROR; - n_no_listener ++; - } - } - else - { - b1->error = node->errors[UDP_ERROR_NONE]; - // advance to the payload - vlib_buffer_advance (b1, sizeof (*h1)); - } - - if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED)) - { - udp_rx_trace_t *tr = vlib_add_trace (vm, node, - b0, sizeof (*tr)); - if (b0->error != node->errors[UDP_ERROR_LENGTH_ERROR]) - { - tr->src_port = h0 ? h0->src_port : 0; - tr->dst_port = h0 ? h0->dst_port : 0; - tr->bound = (next0 != UDP_INPUT_NEXT_ICMP4_ERROR && - next0 != UDP_INPUT_NEXT_ICMP6_ERROR); - } - } - if (PREDICT_FALSE(b1->flags & VLIB_BUFFER_IS_TRACED)) - { - udp_rx_trace_t *tr = vlib_add_trace (vm, node, - b1, sizeof (*tr)); - if (b1->error != node->errors[UDP_ERROR_LENGTH_ERROR]) - { - tr->src_port = h1 ? h1->src_port : 0; - tr->dst_port = h1 ? h1->dst_port : 0; - tr->bound = (next1 != UDP_INPUT_NEXT_ICMP4_ERROR && - next1 != UDP_INPUT_NEXT_ICMP6_ERROR); - } - } + else if (is_ip4) + { + icmp4_error_set_vnet_buffer (b1, + ICMP4_destination_unreachable, + ICMP4_destination_unreachable_port_unreachable, + 0); + next1 = UDP_INPUT_NEXT_ICMP4_ERROR; + n_no_listener++; + } + else + { + icmp6_error_set_vnet_buffer (b1, + ICMP6_destination_unreachable, + ICMP6_destination_unreachable_port_unreachable, + 0); + next1 = UDP_INPUT_NEXT_ICMP6_ERROR; + n_no_listener++; + } + } + else + { + b1->error = node->errors[UDP_ERROR_NONE]; + // advance to the payload + vlib_buffer_advance (b1, sizeof (*h1)); + } + + if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) + { + udp_rx_trace_t *tr = vlib_add_trace (vm, node, + b0, sizeof (*tr)); + if (b0->error != node->errors[UDP_ERROR_LENGTH_ERROR]) + { + tr->src_port = h0 ? h0->src_port : 0; + tr->dst_port = h0 ? h0->dst_port : 0; + tr->bound = (next0 != UDP_INPUT_NEXT_ICMP4_ERROR && + next0 != UDP_INPUT_NEXT_ICMP6_ERROR); + } + } + if (PREDICT_FALSE (b1->flags & VLIB_BUFFER_IS_TRACED)) + { + udp_rx_trace_t *tr = vlib_add_trace (vm, node, + b1, sizeof (*tr)); + if (b1->error != node->errors[UDP_ERROR_LENGTH_ERROR]) + { + tr->src_port = h1 ? h1->src_port : 0; + tr->dst_port = h1 ? h1->dst_port : 0; + tr->bound = (next1 != UDP_INPUT_NEXT_ICMP4_ERROR && + next1 != UDP_INPUT_NEXT_ICMP6_ERROR); + } + } vlib_validate_buffer_enqueue_x2 (vm, node, next_index, to_next, n_left_to_next, bi0, bi1, next0, next1); } - + while (n_left_from > 0 && n_left_to_next > 0) { u32 bi0; - vlib_buffer_t * b0; - udp_header_t * h0 = 0; + vlib_buffer_t *b0; + udp_header_t *h0 = 0; u32 i0, next0; - u32 advance0; + u32 advance0; bi0 = from[0]; to_next[0] = bi0; @@ -294,81 +304,85 @@ udp46_input_inline (vlib_main_t * vm, b0 = vlib_get_buffer (vm, bi0); - /* ip4/6_local hands us the ip header, not the udp header */ - if (is_ip4) - advance0 = sizeof(ip4_header_t); - else - advance0 = sizeof(ip6_header_t); + /* ip4/6_local hands us the ip header, not the udp header */ + if (is_ip4) + advance0 = sizeof (ip4_header_t); + else + advance0 = sizeof (ip6_header_t); - if (PREDICT_FALSE(b0->current_length < advance0 + sizeof (*h0))) - { - b0->error = node->errors[UDP_ERROR_LENGTH_ERROR]; - next0 = UDP_INPUT_NEXT_DROP; - goto trace_x1; - } + if (PREDICT_FALSE (b0->current_length < advance0 + sizeof (*h0))) + { + b0->error = node->errors[UDP_ERROR_LENGTH_ERROR]; + next0 = UDP_INPUT_NEXT_DROP; + goto trace_x1; + } - vlib_buffer_advance (b0, advance0); + vlib_buffer_advance (b0, advance0); h0 = vlib_buffer_get_current (b0); - if (PREDICT_TRUE(clib_net_to_host_u16(h0->length) <= - vlib_buffer_length_in_chain(vm, b0))) - { - i0 = sparse_vec_index (rt->next_by_dst_port, h0->dst_port); - next0 = vec_elt(rt->next_by_dst_port, i0); - - if (PREDICT_FALSE(i0 == SPARSE_VEC_INVALID_INDEX)) - { - // move the pointer back so icmp-error can find the - // ip packet header - vlib_buffer_advance (b0, - (word)advance0); - - if (PREDICT_FALSE(punt_unknown)) - { - b0->error = node->errors[UDP_ERROR_PUNT]; - next0 = UDP_INPUT_NEXT_PUNT; + if (PREDICT_TRUE (clib_net_to_host_u16 (h0->length) <= + vlib_buffer_length_in_chain (vm, b0))) + { + i0 = sparse_vec_index (rt->next_by_dst_port, h0->dst_port); + next0 = vec_elt (rt->next_by_dst_port, i0); + + if (PREDICT_FALSE (i0 == SPARSE_VEC_INVALID_INDEX)) + { + // move the pointer back so icmp-error can find the + // ip packet header + vlib_buffer_advance (b0, -(word) advance0); + + if (PREDICT_FALSE (punt_unknown)) + { + b0->error = node->errors[UDP_ERROR_PUNT]; + next0 = UDP_INPUT_NEXT_PUNT; + } + else if (is_ip4) + { + icmp4_error_set_vnet_buffer (b0, + ICMP4_destination_unreachable, + ICMP4_destination_unreachable_port_unreachable, + 0); + next0 = UDP_INPUT_NEXT_ICMP4_ERROR; + n_no_listener++; } - else if (is_ip4) - { - icmp4_error_set_vnet_buffer(b0, ICMP4_destination_unreachable, - ICMP4_destination_unreachable_port_unreachable, 0); - next0 = UDP_INPUT_NEXT_ICMP4_ERROR; - n_no_listener ++; - } - else - { - icmp6_error_set_vnet_buffer(b0, ICMP6_destination_unreachable, - ICMP6_destination_unreachable_port_unreachable, 0); - next0 = UDP_INPUT_NEXT_ICMP6_ERROR; - n_no_listener ++; - } - } - else - { - b0->error = node->errors[UDP_ERROR_NONE]; - // advance to the payload - vlib_buffer_advance (b0, sizeof (*h0)); - } - } - else - { - b0->error = node->errors[UDP_ERROR_LENGTH_ERROR]; - next0 = UDP_INPUT_NEXT_DROP; - } - - trace_x1: - if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED)) - { - udp_rx_trace_t *tr = vlib_add_trace (vm, node, - b0, sizeof (*tr)); - if (b0->error != node->errors[UDP_ERROR_LENGTH_ERROR]) - { - tr->src_port = h0->src_port; - tr->dst_port = h0->dst_port; - tr->bound = (next0 != UDP_INPUT_NEXT_ICMP4_ERROR && - next0 != UDP_INPUT_NEXT_ICMP6_ERROR); - } - } + else + { + icmp6_error_set_vnet_buffer (b0, + ICMP6_destination_unreachable, + ICMP6_destination_unreachable_port_unreachable, + 0); + next0 = UDP_INPUT_NEXT_ICMP6_ERROR; + n_no_listener++; + } + } + else + { + b0->error = node->errors[UDP_ERROR_NONE]; + // advance to the payload + vlib_buffer_advance (b0, sizeof (*h0)); + } + } + else + { + b0->error = node->errors[UDP_ERROR_LENGTH_ERROR]; + next0 = UDP_INPUT_NEXT_DROP; + } + + trace_x1: + if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) + { + udp_rx_trace_t *tr = vlib_add_trace (vm, node, + b0, sizeof (*tr)); + if (b0->error != node->errors[UDP_ERROR_LENGTH_ERROR]) + { + tr->src_port = h0->src_port; + tr->dst_port = h0->dst_port; + tr->bound = (next0 != UDP_INPUT_NEXT_ICMP4_ERROR && + next0 != UDP_INPUT_NEXT_ICMP6_ERROR); + } + } vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, n_left_to_next, @@ -377,11 +391,12 @@ udp46_input_inline (vlib_main_t * vm, vlib_put_next_frame (vm, node, next_index, n_left_to_next); } - vlib_error_count(vm, node->node_index, UDP_ERROR_NO_LISTENER, n_no_listener); + vlib_error_count (vm, node->node_index, UDP_ERROR_NO_LISTENER, + n_no_listener); return from_frame->n_vectors; } -static char * udp_error_strings[] = { +static char *udp_error_strings[] = { #define udp_error(n,s) s, #include "udp_error.def" #undef udp_error @@ -389,21 +404,20 @@ static char * udp_error_strings[] = { static uword udp4_input (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * from_frame) + vlib_node_runtime_t * node, vlib_frame_t * from_frame) { - return udp46_input_inline (vm, node, from_frame, 1 /* is_ip4 */); + return udp46_input_inline (vm, node, from_frame, 1 /* is_ip4 */ ); } static uword udp6_input (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * from_frame) + vlib_node_runtime_t * node, vlib_frame_t * from_frame) { - return udp46_input_inline (vm, node, from_frame, 0 /* is_ip4 */); + return udp46_input_inline (vm, node, from_frame, 0 /* is_ip4 */ ); } +/* *INDENT-OFF* */ VLIB_REGISTER_NODE (udp4_input_node) = { .function = udp4_input, .name = "ip4-udp-lookup", @@ -426,9 +440,11 @@ VLIB_REGISTER_NODE (udp4_input_node) = { .format_trace = format_udp_rx_trace, .unformat_buffer = unformat_udp_header, }; +/* *INDENT-ON* */ -VLIB_NODE_FUNCTION_MULTIARCH (udp4_input_node, udp4_input) +VLIB_NODE_FUNCTION_MULTIARCH (udp4_input_node, udp4_input); +/* *INDENT-OFF* */ VLIB_REGISTER_NODE (udp6_input_node) = { .function = udp6_input, .name = "ip6-udp-lookup", @@ -451,14 +467,15 @@ VLIB_REGISTER_NODE (udp6_input_node) = { .format_trace = format_udp_rx_trace, .unformat_buffer = unformat_udp_header, }; +/* *INDENT-ON* */ -VLIB_NODE_FUNCTION_MULTIARCH (udp6_input_node, udp6_input) +VLIB_NODE_FUNCTION_MULTIARCH (udp6_input_node, udp6_input); -static void add_dst_port (udp_main_t * um, - udp_dst_port_t dst_port, - char * dst_port_name, u8 is_ip4) +static void +add_dst_port (udp_main_t * um, + udp_dst_port_t dst_port, char *dst_port_name, u8 is_ip4) { - udp_dst_port_info_t * pi; + udp_dst_port_info_t *pi; u32 i; vec_add2 (um->dst_port_infos[is_ip4], pi, 1); @@ -467,7 +484,7 @@ static void add_dst_port (udp_main_t * um, pi->name = dst_port_name; pi->dst_port = dst_port; pi->next_index = pi->node_index = ~0; - + hash_set (um->dst_port_info_by_dst_port[is_ip4], dst_port, i); if (pi->name) @@ -476,70 +493,69 @@ static void add_dst_port (udp_main_t * um, void udp_register_dst_port (vlib_main_t * vm, - udp_dst_port_t dst_port, - u32 node_index, u8 is_ip4) + udp_dst_port_t dst_port, u32 node_index, u8 is_ip4) { - udp_main_t * um = &udp_main; - udp_dst_port_info_t * pi; - udp_input_runtime_t * rt; - u16 * n; + udp_main_t *um = &udp_main; + udp_dst_port_info_t *pi; + udp_input_runtime_t *rt; + u16 *n; { - clib_error_t * error = vlib_call_init_function (vm, udp_local_init); + clib_error_t *error = vlib_call_init_function (vm, udp_local_init); if (error) clib_error_report (error); } pi = udp_get_dst_port_info (um, dst_port, is_ip4); - if (! pi) + if (!pi) { add_dst_port (um, dst_port, 0, is_ip4); pi = udp_get_dst_port_info (um, dst_port, is_ip4); ASSERT (pi); } - + pi->node_index = node_index; - pi->next_index = vlib_node_add_next (vm, - is_ip4 ? udp4_input_node.index - : udp6_input_node.index, - node_index); + pi->next_index = vlib_node_add_next (vm, + is_ip4 ? udp4_input_node.index + : udp6_input_node.index, node_index); /* Setup udp protocol -> next index sparse vector mapping. */ - rt = vlib_node_get_runtime_data - (vm, is_ip4 ? udp4_input_node.index: udp6_input_node.index); - n = sparse_vec_validate (rt->next_by_dst_port, - clib_host_to_net_u16 (dst_port)); + rt = vlib_node_get_runtime_data + (vm, is_ip4 ? udp4_input_node.index : udp6_input_node.index); + n = sparse_vec_validate (rt->next_by_dst_port, + clib_host_to_net_u16 (dst_port)); n[0] = pi->next_index; } void -udp_punt_unknown(vlib_main_t * vm, u8 is_ip4, u8 is_add) +udp_punt_unknown (vlib_main_t * vm, u8 is_ip4, u8 is_add) { - udp_input_runtime_t * rt; + udp_input_runtime_t *rt; { - clib_error_t * error = vlib_call_init_function (vm, udp_local_init); + clib_error_t *error = vlib_call_init_function (vm, udp_local_init); if (error) clib_error_report (error); } - rt = vlib_node_get_runtime_data - (vm, is_ip4 ? udp4_input_node.index: udp6_input_node.index); + rt = vlib_node_get_runtime_data + (vm, is_ip4 ? udp4_input_node.index : udp6_input_node.index); rt->punt_unknown = is_add; } /* Parse a UDP header. */ -uword unformat_udp_header (unformat_input_t * input, va_list * args) +uword +unformat_udp_header (unformat_input_t * input, va_list * args) { - u8 ** result = va_arg (*args, u8 **); - udp_header_t * udp; - __attribute__((unused)) int old_length; + u8 **result = va_arg (*args, u8 **); + udp_header_t *udp; + __attribute__ ((unused)) int old_length; u16 src_port, dst_port; /* Allocate space for IP header. */ { - void * p; + void *p; old_length = vec_len (*result); vec_add2 (*result, p, sizeof (ip4_header_t)); @@ -547,8 +563,7 @@ uword unformat_udp_header (unformat_input_t * input, va_list * args) } memset (udp, 0, sizeof (udp[0])); - if (unformat (input, "src-port %d dst-port %d", - &src_port, &dst_port)) + if (unformat (input, "src-port %d dst-port %d", &src_port, &dst_port)) { udp->src_port = clib_host_to_net_u16 (src_port); udp->dst_port = clib_host_to_net_u16 (dst_port); @@ -560,22 +575,23 @@ uword unformat_udp_header (unformat_input_t * input, va_list * args) static void udp_setup_node (vlib_main_t * vm, u32 node_index) { - vlib_node_t * n = vlib_get_node (vm, node_index); - pg_node_t * pn = pg_get_node (node_index); + vlib_node_t *n = vlib_get_node (vm, node_index); + pg_node_t *pn = pg_get_node (node_index); n->format_buffer = format_udp_header; n->unformat_buffer = unformat_udp_header; pn->unformat_edit = unformat_pg_udp_header; } -clib_error_t * udp_local_init (vlib_main_t * vm) +clib_error_t * +udp_local_init (vlib_main_t * vm) { - udp_input_runtime_t * rt; - udp_main_t * um = &udp_main; + udp_input_runtime_t *rt; + udp_main_t *um = &udp_main; int i; { - clib_error_t * error; + clib_error_t *error; error = vlib_call_init_function (vm, udp_init); if (error) clib_error_report (error); @@ -584,8 +600,8 @@ clib_error_t * udp_local_init (vlib_main_t * vm) for (i = 0; i < 2; i++) { - um->dst_port_info_by_name[i] = hash_create_string (0, sizeof(uword)); - um->dst_port_info_by_dst_port[i] = hash_create (0, sizeof(uword)); + um->dst_port_info_by_name[i] = hash_create_string (0, sizeof (uword)); + um->dst_port_info_by_dst_port[i] = hash_create (0, sizeof (uword)); } udp_setup_node (vm, udp4_input_node.index); @@ -594,7 +610,7 @@ clib_error_t * udp_local_init (vlib_main_t * vm) rt = vlib_node_get_runtime_data (vm, udp4_input_node.index); rt->next_by_dst_port = sparse_vec_new - (/* elt bytes */ sizeof (rt->next_by_dst_port[0]), + ( /* elt bytes */ sizeof (rt->next_by_dst_port[0]), /* bits in index */ BITS (((udp_header_t *) 0)->dst_port)); rt->punt_unknown = 0; @@ -602,11 +618,10 @@ clib_error_t * udp_local_init (vlib_main_t * vm) #define _(n,s) add_dst_port (um, UDP_DST_PORT_##s, #s, 1 /* is_ip4 */); foreach_udp4_dst_port #undef _ - - rt = vlib_node_get_runtime_data (vm, udp6_input_node.index); + rt = vlib_node_get_runtime_data (vm, udp6_input_node.index); rt->next_by_dst_port = sparse_vec_new - (/* elt bytes */ sizeof (rt->next_by_dst_port[0]), + ( /* elt bytes */ sizeof (rt->next_by_dst_port[0]), /* bits in index */ BITS (((udp_header_t *) 0)->dst_port)); rt->punt_unknown = 0; @@ -614,10 +629,17 @@ clib_error_t * udp_local_init (vlib_main_t * vm) #define _(n,s) add_dst_port (um, UDP_DST_PORT_##s, #s, 0 /* is_ip4 */); foreach_udp6_dst_port #undef _ - - ip4_register_protocol (IP_PROTOCOL_UDP, udp4_input_node.index); + ip4_register_protocol (IP_PROTOCOL_UDP, udp4_input_node.index); /* Note: ip6 differs from ip4, UDP is hotwired to ip6-udp-lookup */ return 0; } VLIB_INIT_FUNCTION (udp_local_init); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/udp_packet.h b/vnet/vnet/ip/udp_packet.h index 21c30c6eb71..beea3059246 100644 --- a/vnet/vnet/ip/udp_packet.h +++ b/vnet/vnet/ip/udp_packet.h @@ -40,7 +40,8 @@ #ifndef included_udp_packet_h #define included_udp_packet_h -typedef struct { +typedef struct +{ /* Source and destination port. */ u16 src_port, dst_port; @@ -54,3 +55,11 @@ typedef struct { #endif /* included_udp_packet_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/vnet/vnet/ip/udp_pg.c b/vnet/vnet/ip/udp_pg.c index 76383a9a9c2..c9d8d38ca4a 100644 --- a/vnet/vnet/ip/udp_pg.c +++ b/vnet/vnet/ip/udp_pg.c @@ -38,7 +38,7 @@ */ #include <vnet/pg/pg.h> -#include <vnet/ip/ip.h> /* for unformat_udp_udp_port */ +#include <vnet/ip/ip.h> /* for unformat_udp_udp_port */ #define UDP_PG_EDIT_LENGTH (1 << 0) #define UDP_PG_EDIT_CHECKSUM (1 << 1) @@ -47,21 +47,19 @@ always_inline void udp_pg_edit_function_inline (pg_main_t * pg, pg_stream_t * s, pg_edit_group_t * g, - u32 * packets, - u32 n_packets, - u32 flags) + u32 * packets, u32 n_packets, u32 flags) { - vlib_main_t * vm = vlib_get_main(); + vlib_main_t *vm = vlib_get_main (); u32 ip_offset, udp_offset; udp_offset = g->start_byte_offset; - ip_offset = (g-1)->start_byte_offset; + ip_offset = (g - 1)->start_byte_offset; while (n_packets >= 1) { - vlib_buffer_t * p0; - ip4_header_t * ip0; - udp_header_t * udp0; + vlib_buffer_t *p0; + ip4_header_t *ip0; + udp_header_t *udp0; u32 udp_len0; p0 = vlib_get_buffer (vm, packets[0]); @@ -73,9 +71,9 @@ udp_pg_edit_function_inline (pg_main_t * pg, udp_len0 = clib_net_to_host_u16 (ip0->length) - sizeof (ip0[0]); if (flags & UDP_PG_EDIT_LENGTH) - udp0->length = - clib_net_to_host_u16 (vlib_buffer_length_in_chain (vm, p0) - - ip_offset); + udp0->length = + clib_net_to_host_u16 (vlib_buffer_length_in_chain (vm, p0) + - ip_offset); /* Initialize checksum with header. */ if (flags & UDP_PG_EDIT_CHECKSUM) @@ -90,9 +88,11 @@ udp_pg_edit_function_inline (pg_main_t * pg, /* Invalidate possibly old checksum. */ udp0->checksum = 0; - sum0 = ip_incremental_checksum_buffer (vm, p0, udp_offset, udp_len0, sum0); + sum0 = + ip_incremental_checksum_buffer (vm, p0, udp_offset, udp_len0, + sum0); - sum0 = ~ ip_csum_fold (sum0); + sum0 = ~ip_csum_fold (sum0); /* Zero checksum means checksumming disabled. */ sum0 = sum0 != 0 ? sum0 : 0xffff; @@ -105,9 +105,7 @@ udp_pg_edit_function_inline (pg_main_t * pg, static void udp_pg_edit_function (pg_main_t * pg, pg_stream_t * s, - pg_edit_group_t * g, - u32 * packets, - u32 n_packets) + pg_edit_group_t * g, u32 * packets, u32 n_packets) { switch (g->edit_function_opaque) { @@ -132,7 +130,8 @@ udp_pg_edit_function (pg_main_t * pg, } } -typedef struct { +typedef struct +{ pg_edit_t src_port, dst_port; pg_edit_t length; pg_edit_t checksum; @@ -143,20 +142,20 @@ pg_udp_header_init (pg_udp_header_t * p) { /* Initialize fields that are not bit fields in the IP header. */ #define _(f) pg_edit_init (&p->f, udp_header_t, f); - _ (src_port); - _ (dst_port); - _ (length); - _ (checksum); + _(src_port); + _(dst_port); + _(length); + _(checksum); #undef _ } uword unformat_pg_udp_header (unformat_input_t * input, va_list * args) { - pg_stream_t * s = va_arg (*args, pg_stream_t *); - pg_udp_header_t * p; + pg_stream_t *s = va_arg (*args, pg_stream_t *); + pg_udp_header_t *p; u32 group_index; - + p = pg_create_edit_group (s, sizeof (p[0]), sizeof (udp_header_t), &group_index); pg_udp_header_init (p); @@ -165,24 +164,21 @@ unformat_pg_udp_header (unformat_input_t * input, va_list * args) p->checksum.type = PG_EDIT_UNSPECIFIED; p->length.type = PG_EDIT_UNSPECIFIED; - if (! unformat (input, "UDP: %U -> %U", - unformat_pg_edit, - unformat_tcp_udp_port, &p->src_port, - unformat_pg_edit, - unformat_tcp_udp_port, &p->dst_port)) + if (!unformat (input, "UDP: %U -> %U", + unformat_pg_edit, + unformat_tcp_udp_port, &p->src_port, + unformat_pg_edit, unformat_tcp_udp_port, &p->dst_port)) goto error; /* Parse options. */ while (1) { if (unformat (input, "length %U", - unformat_pg_edit, - unformat_pg_number, &p->length)) + unformat_pg_edit, unformat_pg_number, &p->length)) ; else if (unformat (input, "checksum %U", - unformat_pg_edit, - unformat_pg_number, &p->checksum)) + unformat_pg_edit, unformat_pg_number, &p->checksum)) ; /* Can't parse input: try next protocol level. */ @@ -191,9 +187,9 @@ unformat_pg_udp_header (unformat_input_t * input, va_list * args) } { - ip_main_t * im = &ip_main; + ip_main_t *im = &ip_main; u16 dst_port; - tcp_udp_port_info_t * pi; + tcp_udp_port_info_t *pi; pi = 0; if (p->dst_port.type == PG_EDIT_FIXED) @@ -206,14 +202,14 @@ unformat_pg_udp_header (unformat_input_t * input, va_list * args) && unformat_user (input, pi->unformat_pg_edit, s)) ; - else if (! unformat_user (input, unformat_pg_payload, s)) + else if (!unformat_user (input, unformat_pg_payload, s)) goto error; p = pg_get_edit_group (s, group_index); if (p->checksum.type == PG_EDIT_UNSPECIFIED || p->length.type == PG_EDIT_UNSPECIFIED) { - pg_edit_group_t * g = pg_stream_get_group (s, group_index); + pg_edit_group_t *g = pg_stream_get_group (s, group_index); g->edit_function = udp_pg_edit_function; g->edit_function_opaque = 0; if (p->checksum.type == PG_EDIT_UNSPECIFIED) @@ -225,9 +221,17 @@ unformat_pg_udp_header (unformat_input_t * input, va_list * args) return 1; } - error: +error: /* Free up any edits we may have added. */ pg_free_edit_group (s); return 0; } + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |