diff options
Diffstat (limited to 'hicn-plugin/src/pg.c')
| -rw-r--r-- | hicn-plugin/src/pg.c | 1340 |
1 files changed, 197 insertions, 1143 deletions
diff --git a/hicn-plugin/src/pg.c b/hicn-plugin/src/pg.c index b77e8fcac..05172345b 100644 --- a/hicn-plugin/src/pg.c +++ b/hicn-plugin/src/pg.c @@ -18,57 +18,13 @@ #include <vnet/pg/pg.h> #include <vnet/ip/ip.h> #include <vnet/ethernet/ethernet.h> +#include <vnet/fib/fib_entry_track.h> #include "hicn.h" #include "pg.h" #include "parser.h" #include "infra.h" - -/* Registration struct for a graph node */ -vlib_node_registration_t hicn_pg_interest_node; -vlib_node_registration_t hicn_pg_data_node; - -/* Stats, which end up called "error" even though they aren't... */ -#define foreach_hicnpg_error \ - _ (PROCESSED, "hICN PG packets processed") \ - _ (DROPPED, "hICN PG packets dropped") \ - _ (INTEREST_MSGS_GENERATED, "hICN PG Interests generated") \ - _ (CONTENT_MSGS_RECEIVED, "hICN PG Content msgs received") - -typedef enum -{ -#define _(sym, str) HICNPG_ERROR_##sym, - foreach_hicnpg_error -#undef _ - HICNPG_N_ERROR, -} hicnpg_error_t; - -static char *hicnpg_error_strings[] = { -#define _(sym, string) string, - foreach_hicnpg_error -#undef _ -}; - -/* - * Next graph nodes, which reference the list in the actual registration - * block below - */ -typedef enum -{ - HICNPG_INTEREST_NEXT_V4_LOOKUP, - HICNPG_INTEREST_NEXT_V6_LOOKUP, - HICNPG_INTEREST_NEXT_DROP, - HICNPG_N_NEXT, -} hicnpg_interest_next_t; - -/* Trace context struct */ -typedef struct -{ - u32 next_index; - u32 sw_if_index; - u8 pkt_type; - u16 msg_type; -} hicnpg_trace_t; +#include "route.h" hicnpg_main_t hicnpg_main = { .index = (u32) 0, .index_ifaces = (u32) 1, @@ -78,1183 +34,281 @@ hicnpg_main_t hicnpg_main = { .index = (u32) 0, .n_ifaces = (u32) 1, .sw_if = (u32) 0 }; -hicnpg_server_main_t hicnpg_server_main = { - .node_index = 0, -}; - -/* packet trace format function */ -static u8 * -format_hicnpg_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 *); - hicnpg_trace_t *t = va_arg (*args, hicnpg_trace_t *); - - s = format (s, "HICNPG: pkt: %d, msg %d, sw_if_index %d, next index %d", - (int) t->pkt_type, (int) t->msg_type, t->sw_if_index, - t->next_index); - return (s); -} - -always_inline void hicn_rewrite_interestv4 (vlib_main_t *vm, vlib_buffer_t *b0, - u32 seq_number, u16 lifetime, - u32 next_flow, u32 iface); - -always_inline void hicn_rewrite_interestv6 (vlib_main_t *vm, vlib_buffer_t *b0, - u32 seq_number, u16 lifetime, - u32 next_flow, u32 iface); - -always_inline void convert_interest_to_data_v4 (vlib_main_t *vm, - vlib_buffer_t *b0, - vlib_buffer_t *rb, u32 bi0); - -always_inline void convert_interest_to_data_v6 (vlib_main_t *vm, - vlib_buffer_t *b0, - vlib_buffer_t *rb, u32 bi0); - -always_inline void calculate_tcp_checksum_v4 (vlib_main_t *vm, - vlib_buffer_t *b0); +/** + * Pool of hicnpg_server_t + */ +hicnpg_server_t *hicnpg_server_pool; -always_inline void calculate_tcp_checksum_v6 (vlib_main_t *vm, - vlib_buffer_t *b0); /* - * Node function for the icn packet-generator client. The goal here is to - * manipulate/tweak a stream of packets that have been injected by the vpp - * packet generator to generate icn request traffic. + * hicnph servrer FIB node type */ -static uword -hicnpg_client_interest_node_fn (vlib_main_t *vm, vlib_node_runtime_t *node, - vlib_frame_t *frame) -{ - u32 n_left_from, *from, *to_next; - hicnpg_interest_next_t next_index; - u32 pkts_processed = 0, pkts_dropped = 0; - u32 interest_msgs_generated = 0; - u32 bi0, bi1; - vlib_buffer_t *b0, *b1; - u8 pkt_type0 = 0, pkt_type1 = 0; - u16 msg_type0 = 0, msg_type1 = 0; - hicn_header_t *hicn0 = NULL, *hicn1 = NULL; - hicn_name_t name0, name1; - u16 namelen0, namelen1; - hicnpg_main_t *hpgm = &hicnpg_main; - int iface = 0; - - 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; - - 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 next0 = HICNPG_INTEREST_NEXT_DROP; - u32 next1 = HICNPG_INTEREST_NEXT_DROP; - u32 sw_if_index0 = ~0, sw_if_index1 = ~0; - u8 isv6_0; - u8 isv6_1; - - /* 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, LOAD); - vlib_prefetch_buffer_header (p3, LOAD); - - CLIB_PREFETCH (p2->data, (2 * CLIB_CACHE_LINE_BYTES), STORE); - CLIB_PREFETCH (p3->data, (2 * CLIB_CACHE_LINE_BYTES), STORE); - } - - /* - * speculatively enqueue b0 and 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); - - sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; - sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX]; - vnet_buffer (b0)->sw_if_index[VLIB_RX] = hpgm->sw_if; - vnet_buffer (b1)->sw_if_index[VLIB_RX] = hpgm->sw_if; - - /* Check icn packets, locate names */ - if (hicn_interest_parse_pkt (b0, &name0, &namelen0, &hicn0, - &isv6_0) == HICN_ERROR_NONE) - { - /* this node grabs only interests */ - - /* Increment the appropriate message counter */ - interest_msgs_generated++; - - iface = (hpgm->index_ifaces % hpgm->n_ifaces); - /* Rewrite and send */ - isv6_0 ? - hicn_rewrite_interestv6 ( - vm, b0, (hpgm->index / hpgm->n_flows) % hpgm->max_seq_number, - hpgm->interest_lifetime, hpgm->index % hpgm->n_flows, - iface) : - hicn_rewrite_interestv4 ( - vm, b0, (hpgm->index / hpgm->n_flows) % hpgm->max_seq_number, - hpgm->interest_lifetime, hpgm->index % hpgm->n_flows, iface); - - hpgm->index_ifaces++; - if (iface == (hpgm->n_ifaces - 1)) - hpgm->index++; - - next0 = isv6_0 ? HICNPG_INTEREST_NEXT_V6_LOOKUP : - HICNPG_INTEREST_NEXT_V4_LOOKUP; - } - if (hicn_interest_parse_pkt (b1, &name1, &namelen1, &hicn1, - &isv6_1) == HICN_ERROR_NONE) - { - /* this node grabs only interests */ - - /* Increment the appropriate message counter */ - interest_msgs_generated++; - - iface = (hpgm->index_ifaces % hpgm->n_ifaces); - /* Rewrite and send */ - isv6_1 ? - hicn_rewrite_interestv6 ( - vm, b1, (hpgm->index / hpgm->n_flows) % hpgm->max_seq_number, - hpgm->interest_lifetime, hpgm->index % hpgm->n_flows, - iface) : - hicn_rewrite_interestv4 ( - vm, b1, (hpgm->index / hpgm->n_flows) % hpgm->max_seq_number, - hpgm->interest_lifetime, hpgm->index % hpgm->n_flows, iface); - - hpgm->index_ifaces++; - if (iface == (hpgm->n_ifaces - 1)) - hpgm->index++; - - next1 = isv6_1 ? HICNPG_INTEREST_NEXT_V6_LOOKUP : - HICNPG_INTEREST_NEXT_V4_LOOKUP; - } - /* Send pkt to next node */ - vnet_buffer (b0)->sw_if_index[VLIB_TX] = ~0; - vnet_buffer (b1)->sw_if_index[VLIB_TX] = ~0; - - pkts_processed += 2; - - if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE))) - { - if (b0->flags & VLIB_BUFFER_IS_TRACED) - { - hicnpg_trace_t *t = - vlib_add_trace (vm, node, b0, sizeof (*t)); - t->pkt_type = pkt_type0; - t->msg_type = msg_type0; - t->sw_if_index = sw_if_index0; - t->next_index = next0; - } - if (b1->flags & VLIB_BUFFER_IS_TRACED) - { - hicnpg_trace_t *t = - vlib_add_trace (vm, node, b1, sizeof (*t)); - t->pkt_type = pkt_type1; - t->msg_type = msg_type1; - t->sw_if_index = sw_if_index1; - t->next_index = next1; - } - } - if (next0 == HICNPG_INTEREST_NEXT_DROP) - { - pkts_dropped++; - } - if (next1 == HICNPG_INTEREST_NEXT_DROP) - { - pkts_dropped++; - } - /* - * verify speculative enqueues, maybe switch current - * next frame - */ - 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 next0 = HICNPG_INTEREST_NEXT_DROP; - u32 sw_if_index0; - u8 isv6_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); - - sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; - vnet_buffer (b0)->sw_if_index[VLIB_RX] = hpgm->sw_if; - - /* Check icn packets, locate names */ - if (hicn_interest_parse_pkt (b0, &name0, &namelen0, &hicn0, - &isv6_0) == HICN_ERROR_NONE) - { - /* this node grabs only interests */ - - /* Increment the appropriate message counter */ - interest_msgs_generated++; - - iface = (hpgm->index_ifaces % hpgm->n_ifaces); - - /* Rewrite and send */ - isv6_0 ? - hicn_rewrite_interestv6 ( - vm, b0, (hpgm->index / hpgm->n_flows) % hpgm->max_seq_number, - hpgm->interest_lifetime, hpgm->index % hpgm->n_flows, - iface) : - hicn_rewrite_interestv4 ( - vm, b0, (hpgm->index / hpgm->n_flows) % hpgm->max_seq_number, - hpgm->interest_lifetime, hpgm->index % hpgm->n_flows, iface); - - hpgm->index_ifaces++; - if (iface == (hpgm->n_ifaces - 1)) - hpgm->index++; - - next0 = isv6_0 ? HICNPG_INTEREST_NEXT_V6_LOOKUP : - HICNPG_INTEREST_NEXT_V4_LOOKUP; - } - /* Send pkt to ip lookup */ - vnet_buffer (b0)->sw_if_index[VLIB_TX] = ~0; +fib_node_type_t hicnpg_server_fib_node_type; - if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && - (b0->flags & VLIB_BUFFER_IS_TRACED))) - { - hicnpg_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t)); - t->pkt_type = pkt_type0; - t->msg_type = msg_type0; - t->sw_if_index = sw_if_index0; - t->next_index = next0; - } - pkts_processed += 1; - - if (next0 == HICNPG_INTEREST_NEXT_DROP) - { - pkts_dropped++; - } - /* - * 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, hicn_pg_interest_node.index, - HICNPG_ERROR_PROCESSED, pkts_processed); - vlib_node_increment_counter (vm, hicn_pg_interest_node.index, - HICNPG_ERROR_DROPPED, pkts_dropped); - vlib_node_increment_counter (vm, hicn_pg_interest_node.index, - HICNPG_ERROR_INTEREST_MSGS_GENERATED, - interest_msgs_generated); +/** + * Registered DPO type. + */ +dpo_type_t hicnpg_server_dpo_type; - return (frame->n_vectors); +static void +hicnpg_server_restack (hicnpg_server_t *hicnpg_server) +{ + dpo_stack ( + hicnpg_server_dpo_type, fib_proto_to_dpo (hicnpg_server->prefix.fp_proto), + &hicnpg_server->dpo, + fib_entry_contribute_ip_forwarding (hicnpg_server->fib_entry_index)); } -void -hicn_rewrite_interestv4 (vlib_main_t *vm, vlib_buffer_t *b0, u32 seq_number, - u16 interest_lifetime, u32 next_flow, u32 iface) +static hicnpg_server_t * +hicnpg_server_from_fib_node (fib_node_t *node) { - hicn_header_t *h0 = vlib_buffer_get_current (b0); - - /* Generate the right src and dst corresponding to flow and iface */ - ip46_address_t src_addr = { - .ip4 = hicnpg_main.pgen_clt_src_addr.ip4, - }; - hicn_name_t dst_name = { - .prefix.ip4 = hicnpg_main.pgen_clt_hicn_name->fp_addr.ip4, - .suffix = seq_number, - }; - - src_addr.ip4.as_u32 += clib_host_to_net_u32 (iface); - dst_name.prefix.ip4.as_u32 += clib_net_to_host_u32 (next_flow); - - /* Update locator and name */ - hicn_type_t type = hicn_get_buffer (b0)->type; - HICN_OPS4->set_interest_locator (type, &h0->protocol, &src_addr); - HICN_OPS4->set_interest_name (type, &h0->protocol, &dst_name); - - /* Update lifetime (currently L4 checksum is not updated) */ - HICN_OPS4->set_lifetime (type, &h0->protocol, interest_lifetime); - - /* Update checksums */ - HICN_OPS4->update_checksums (type, &h0->protocol, 0, 0); + ASSERT (hicnpg_server_fib_node_type == node->fn_type); + return ((hicnpg_server_t *) (((char *) node) - + STRUCT_OFFSET_OF (hicnpg_server_t, fib_node))); } /** - * @brief Rewrite the IPv6 header as the next generated packet - * - * Set up a name prefix - * - etiher generate interest in which the name varies only after the prefix - * (inc : seq_number), then the flow acts on the prefix (CHECK) - * seq_number => TCP, FLOW => - * - * SRC : pgen_clt_src_addr.ip6 DST = generate name (pgen_clt_hicn_name.ip6) - * ffff:ffff:ffff:ffff ffff:ffff:ffff:ffff - * \__/ \__/ - * +iface + flow - * Source is used to emulate different consumers. - * FIXME iface is ill-named, better name it consumer id - * Destination is used to iterate on the content. + * Function definition to backwalk a FIB node */ -void -hicn_rewrite_interestv6 (vlib_main_t *vm, vlib_buffer_t *b0, u32 seq_number, - u16 interest_lifetime, u32 next_flow, u32 iface) +static fib_node_back_walk_rc_t +hicnpg_server_fib_back_walk (fib_node_t *node, fib_node_back_walk_ctx_t *ctx) { - hicn_header_t *h0 = vlib_buffer_get_current (b0); - - /* Generate the right src and dst corresponding to flow and iface */ - ip46_address_t src_addr = { - .ip6 = hicnpg_main.pgen_clt_src_addr.ip6, - }; - hicn_name_t dst_name = { - .prefix.ip6 = hicnpg_main.pgen_clt_hicn_name->fp_addr.ip6, - .suffix = seq_number, - }; - src_addr.ip6.as_u32[3] += clib_host_to_net_u32 (iface); - dst_name.prefix.ip6.as_u32[3] += clib_net_to_host_u32 (next_flow); + hicnpg_server_restack (hicnpg_server_from_fib_node (node)); - /* Update locator and name */ - hicn_type_t type = hicn_get_buffer (b0)->type; - HICN_OPS6->set_interest_locator (type, &h0->protocol, &src_addr); - HICN_OPS6->set_interest_name (type, &h0->protocol, &dst_name); - - /* Update lifetime */ - HICN_OPS6->set_lifetime (type, &h0->protocol, interest_lifetime); - - /* Update checksums */ - calculate_tcp_checksum_v6 (vm, b0); + return FIB_NODE_BACK_WALK_CONTINUE; } -void -calculate_tcp_checksum_v4 (vlib_main_t *vm, vlib_buffer_t *b0) +/** + * Function definition to get a FIB node from its index + */ +static fib_node_t * +hicnpg_server_fib_node_get (fib_node_index_t index) { - ip4_header_t *ip0; - tcp_header_t *tcp0; - ip_csum_t sum0; - u32 tcp_len0; - - ip0 = (ip4_header_t *) (vlib_buffer_get_current (b0)); - tcp0 = - (tcp_header_t *) (vlib_buffer_get_current (b0) + sizeof (ip4_header_t)); - tcp_len0 = clib_net_to_host_u16 (ip0->length) - sizeof (ip4_header_t); - - /* Initialize checksum with header. */ - if (BITS (sum0) == 32) - { - sum0 = clib_mem_unaligned (&ip0->src_address, u32); - sum0 = - ip_csum_with_carry (sum0, clib_mem_unaligned (&ip0->dst_address, u32)); - } - else - sum0 = clib_mem_unaligned (&ip0->src_address, u64); - - sum0 = ip_csum_with_carry ( - sum0, clib_host_to_net_u32 (tcp_len0 + (ip0->protocol << 16))); - - /* Invalidate possibly old checksum. */ - tcp0->checksum = 0; + hicnpg_server_t *hpg_server; - u32 tcp_offset = sizeof (ip4_header_t); - sum0 = ip_incremental_checksum_buffer (vm, b0, tcp_offset, tcp_len0, sum0); + hpg_server = pool_elt_at_index (hicnpg_server_pool, index); - tcp0->checksum = ~ip_csum_fold (sum0); + return (&hpg_server->fib_node); } -void -calculate_tcp_checksum_v6 (vlib_main_t *vm, vlib_buffer_t *b0) +/** + * Function definition to inform the FIB node that its last lock has gone. + */ +static void +hicnpg_server_fib_last_lock_gone (fib_node_t *node) { - ip6_header_t *ip0; - tcp_header_t *tcp0; - ip_csum_t sum0; - u32 tcp_len0; - - ip0 = (ip6_header_t *) (vlib_buffer_get_current (b0)); - tcp0 = - (tcp_header_t *) (vlib_buffer_get_current (b0) + sizeof (ip6_header_t)); - tcp_len0 = clib_net_to_host_u16 (ip0->payload_length); + hicnpg_server_t *hpg_server; - /* Initialize checksum with header. */ - if (BITS (sum0) == 32) - { - sum0 = clib_mem_unaligned (&ip0->src_address, u32); - sum0 = - ip_csum_with_carry (sum0, clib_mem_unaligned (&ip0->dst_address, u32)); - } - else - sum0 = clib_mem_unaligned (&ip0->src_address, u64); - - sum0 = ip_csum_with_carry ( - sum0, clib_host_to_net_u32 (tcp_len0 + (ip0->protocol << 16))); + hpg_server = hicnpg_server_from_fib_node (node); - /* Invalidate possibly old checksum. */ - tcp0->checksum = 0; - - u32 tcp_offset = sizeof (ip6_header_t); - sum0 = ip_incremental_checksum_buffer (vm, b0, tcp_offset, tcp_len0, sum0); + /** + * reset the stacked DPO to unlock it + */ + dpo_reset (&hpg_server->dpo); - tcp0->checksum = ~ip_csum_fold (sum0); + pool_put (hicnpg_server_pool, hpg_server); } -VLIB_REGISTER_NODE (hicn_pg_interest_node) = { - .function = hicnpg_client_interest_node_fn, - .name = "hicnpg-interest", - .vector_size = sizeof (u32), - .format_trace = format_hicnpg_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - .n_errors = ARRAY_LEN (hicnpg_error_strings), - .error_strings = hicnpg_error_strings, - .n_next_nodes = HICNPG_N_NEXT, - .next_nodes = { [HICNPG_INTEREST_NEXT_V4_LOOKUP] = "ip4-lookup", - [HICNPG_INTEREST_NEXT_V6_LOOKUP] = "ip6-lookup", - [HICNPG_INTEREST_NEXT_DROP] = "error-drop" }, -}; - -/* - * Next graph nodes, which reference the list in the actual registration - * block below - */ -typedef enum -{ - HICNPG_DATA_NEXT_DROP, - HICNPG_DATA_NEXT_LOOKUP4, - HICNPG_DATA_NEXT_LOOKUP6, - HICNPG_DATA_N_NEXT, -} hicnpg_data_next_t; - -/* Trace context struct */ -typedef struct -{ - u32 next_index; - u32 sw_if_index; - u8 pkt_type; - u16 msg_type; -} icnpg_data_trace_t; - -/* packet trace format function */ -static u8 * -format_hicnpg_data_trace (u8 *s, va_list *args) +static void +hicnpg_server_dpo_lock (dpo_id_t *dpo) { - CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); - CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); - hicnpg_trace_t *t = va_arg (*args, hicnpg_trace_t *); - - s = format (s, "HICNPG: pkt: %d, msg %d, sw_if_index %d, next index %d", - (int) t->pkt_type, (int) t->msg_type, t->sw_if_index, - t->next_index); - return (s); + hicnpg_server_t *hpg_server; + hpg_server = hicnpg_server_get (dpo->dpoi_index); + fib_node_lock (&hpg_server->fib_node); } -static_always_inline int -match_ip4_name (u32 *name, fib_prefix_t *prefix) +static void +hicnpg_server_dpo_unlock (dpo_id_t *dpo) { - u32 xor = 0; - - xor = *name & prefix->fp_addr.ip4.data_u32; - - return xor == prefix->fp_addr.ip4.data_u32; + hicnpg_server_t *hpg_server; + hpg_server = hicnpg_server_get (dpo->dpoi_index); + fib_node_unlock (&hpg_server->fib_node); } -static_always_inline int -match_ip6_name (u8 *name, fib_prefix_t *prefix) +static u8 * +format_hicnpg_server_i (u8 *s, va_list *args) { - union - { - u32x4 as_u32x4; - u64 as_u64[2]; - u32 as_u32[4]; - } xor_sum __attribute__ ((aligned (sizeof (u32x4)))); + index_t hicnpg_server_i = va_arg (*args, index_t); + // u32 indent = va_arg (*args, u32); + u32 details = va_arg (*args, u32); + // vlib_counter_t to; + hicnpg_server_t *hpg; - xor_sum.as_u64[0] = ((u64 *) name)[0] & prefix->fp_addr.ip6.as_u64[0]; - xor_sum.as_u64[1] = ((u64 *) name)[1] & prefix->fp_addr.ip6.as_u64[1]; + hpg = hicnpg_server_get (hicnpg_server_i); - return (xor_sum.as_u64[0] == prefix->fp_addr.ip6.as_u64[0]) && - (xor_sum.as_u64[1] == prefix->fp_addr.ip6.as_u64[1]); -} - -/* - * Return 0,1,2. - * 0 matches - * 1 does not match and the prefix is ip4 - * 2 does not match and the prefix is ip6 - */ -static_always_inline u32 -match_data (vlib_buffer_t *b, fib_prefix_t *prefix) -{ - u8 *ptr = vlib_buffer_get_current (b); - u8 v = *ptr & 0xf0; - u32 next = 0; + // FIXME + s = format (s, "dpo-hicnpg-server:[%d]: ip-fib-index:%d ", hicnpg_server_i, + hpg->fib_index); - if (PREDICT_TRUE (v == 0x40 && ip46_address_is_ip4 (&prefix->fp_addr))) + if (FIB_PROTOCOL_IP4 == hpg->prefix.fp_proto) { - if (!match_ip4_name ((u32 *) &(ptr[12]), prefix)) - next = 1; + s = format (s, "protocol:FIB_PROTOCOL_IP4 prefix: %U", + format_fib_prefix, &hpg->prefix); } - else if (PREDICT_TRUE (v == 0x60 && !ip46_address_is_ip4 (&prefix->fp_addr))) + else { - if (!match_ip6_name (&(ptr[8]), prefix)) - next = 2; + s = format (s, "protocol:FIB_PROTOCOL_IP6 prefix: %U", + format_fib_prefix, &hpg->prefix); } - return next; -} - -/* - * Return 0,1,2. - * 0 matches - * 1 does not match and the prefix is ip4 - * 2 does not match and the prefix is ip6 - */ -static_always_inline u32 -match_interest (vlib_buffer_t *b, fib_prefix_t *prefix) -{ - u8 *ptr = vlib_buffer_get_current (b); - u8 v = *ptr & 0xf0; - u32 next = 0; +#if 0 + vlib_get_combined_counter (&(udp_encap_counters), uei, &to); + s = format (s, " to:[%Ld:%Ld]]", to.packets, to.bytes);s +#endif - if (PREDICT_TRUE (v == 0x40 && ip46_address_is_ip4 (&prefix->fp_addr))) - { - if (!match_ip4_name ((u32 *) &(ptr[16]), prefix)) - next = 1; - } - else if (PREDICT_TRUE (v == 0x60 && !ip46_address_is_ip4 (&prefix->fp_addr))) + if (details) { - if (!match_ip6_name (&(ptr[24]), prefix)) - next = 2; + s = format (s, " locks:%d", hpg->fib_node.fn_locks); + // s = format (s, "\n%UStacked on:", format_white_space, indent + + // 1); s = format (s, "\n%U%U", format_white_space, indent + 2, + // format_dpo_id, + // &hpg->dpo, indent + 3); } - return next; + return s; } -/* - * Node function for the icn packet-generator client. The goal here is to - * manipulate/tweak a stream of packets that have been injected by the vpp - * packet generator to generate icn request traffic. - */ -static uword -hicnpg_client_data_node_fn (vlib_main_t *vm, vlib_node_runtime_t *node, - vlib_frame_t *frame) +static u8 * +format_hicnpg_server_dpo (u8 *s, va_list *args) { - u32 n_left_from, *from, *to_next; - hicnpg_data_next_t next_index; - u32 pkts_processed = 0; - u32 content_msgs_received = 0; - u32 bi0, bi1; - vlib_buffer_t *b0, *b1; - u8 pkt_type0 = 0, pkt_type1 = 0; - u16 msg_type0 = 1, msg_type1 = 1; - hicnpg_main_t *hpgm = &hicnpg_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; - 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 next0 = HICNPG_DATA_NEXT_DROP; - u32 next1 = HICNPG_DATA_NEXT_DROP; - u32 sw_if_index0, sw_if_index1; - - /* 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, LOAD); - vlib_prefetch_buffer_header (p3, LOAD); - - CLIB_PREFETCH (p2->data, (2 * CLIB_CACHE_LINE_BYTES), STORE); - CLIB_PREFETCH (p3->data, (2 * CLIB_CACHE_LINE_BYTES), STORE); - } - - /* - * speculatively enqueue b0 and 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); - - sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; - sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX]; - - next0 = - HICNPG_DATA_NEXT_DROP + match_data (b0, hpgm->pgen_clt_hicn_name); - next1 = - HICNPG_DATA_NEXT_DROP + match_data (b1, hpgm->pgen_clt_hicn_name); - - if (PREDICT_FALSE (vnet_get_feature_count ( - vnet_buffer (b0)->feature_arc_index, - vnet_buffer (b0)->sw_if_index[VLIB_RX]) > 1)) - vnet_feature_next (&next0, b0); - - if (PREDICT_FALSE (vnet_get_feature_count ( - vnet_buffer (b1)->feature_arc_index, - vnet_buffer (b1)->sw_if_index[VLIB_RX]) > 1)) - vnet_feature_next (&next1, b1); - - if (next0 == HICNPG_DATA_NEXT_DROP) - { - /* Increment a counter */ - content_msgs_received++; - } - - if (next1 == HICNPG_DATA_NEXT_DROP) - { - /* Increment a counter */ - content_msgs_received++; - } - - if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE))) - { - if (b0->flags & VLIB_BUFFER_IS_TRACED) - { - icnpg_data_trace_t *t = - vlib_add_trace (vm, node, b0, sizeof (*t)); - t->pkt_type = pkt_type0; - t->msg_type = msg_type0; - t->sw_if_index = sw_if_index0; - t->next_index = next0; - } - if (b1->flags & VLIB_BUFFER_IS_TRACED) - { - icnpg_data_trace_t *t = - vlib_add_trace (vm, node, b1, sizeof (*t)); - t->pkt_type = pkt_type1; - t->msg_type = msg_type1; - t->sw_if_index = sw_if_index1; - t->next_index = next1; - } - } - - vlib_validate_buffer_enqueue_x2 (vm, node, next_index, to_next, - n_left_to_next, bi0, bi1, next0, - next1); - pkts_processed += 2; - } - - while (n_left_from > 0 && n_left_to_next > 0) - { - u32 next0 = HICNPG_DATA_NEXT_DROP; - u32 sw_if_index0; - - /* 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); - - sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; - - next0 = - HICNPG_DATA_NEXT_DROP + match_data (b0, hpgm->pgen_clt_hicn_name); - - if (PREDICT_FALSE (vnet_get_feature_count ( - vnet_buffer (b0)->feature_arc_index, - vnet_buffer (b0)->sw_if_index[VLIB_RX]) > 1)) - vnet_feature_next (&next0, b0); + index_t hpg_server_i = va_arg (*args, index_t); + u32 indent = va_arg (*args, u32); - if (next0 == HICNPG_DATA_NEXT_DROP) - { - /* Increment a counter */ - content_msgs_received++; - } - - if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && - (b0->flags & VLIB_BUFFER_IS_TRACED))) - { - icnpg_data_trace_t *t = - vlib_add_trace (vm, node, b0, sizeof (*t)); - t->pkt_type = pkt_type0; - t->msg_type = msg_type0; - t->sw_if_index = sw_if_index0; - t->next_index = next0; - } - - vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, - n_left_to_next, bi0, next0); - - pkts_processed++; - } - vlib_put_next_frame (vm, node, next_index, n_left_to_next); - } - - vlib_node_increment_counter (vm, hicn_pg_data_node.index, - HICNPG_ERROR_PROCESSED, pkts_processed); - vlib_node_increment_counter (vm, hicn_pg_data_node.index, - HICNPG_ERROR_CONTENT_MSGS_RECEIVED, - content_msgs_received); - return (frame->n_vectors); + return (format (s, "%U", format_hicnpg_server_i, hpg_server_i, indent, 1)); } -VLIB_REGISTER_NODE(hicn_pg_data_node) = -{ - .function = hicnpg_client_data_node_fn, - .name = "hicnpg-data", - .vector_size = sizeof(u32), - .format_trace = format_hicnpg_data_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - .n_errors = ARRAY_LEN(hicnpg_error_strings), - .error_strings = hicnpg_error_strings, - .n_next_nodes = HICNPG_DATA_N_NEXT, - .next_nodes = - { - [HICNPG_DATA_NEXT_DROP] = "error-drop", - [HICNPG_DATA_NEXT_LOOKUP4] = "ip4-lookup", - [HICNPG_DATA_NEXT_LOOKUP6] = "ip6-lookup", - }, +/* + * Virtual function table registered by hicn pg server + * for participation in the FIB object graph. + */ +const static fib_node_vft_t hicnpg_server_fib_vft = { + .fnv_get = hicnpg_server_fib_node_get, + .fnv_last_lock = hicnpg_server_fib_last_lock_gone, + .fnv_back_walk = hicnpg_server_fib_back_walk, }; -VNET_FEATURE_INIT (hicn_data_input_ip4_arc, static) = { - .arc_name = "ip4-unicast", - .node_name = "hicnpg-data", - .runs_before = VNET_FEATURES ("ip4-inacl"), +const static dpo_vft_t hicnpg_server_dpo_vft = { + .dv_lock = hicnpg_server_dpo_lock, + .dv_unlock = hicnpg_server_dpo_unlock, + .dv_format = format_hicnpg_server_dpo, }; -VNET_FEATURE_INIT (hicn_data_input_ip6_arc, static) = { - .arc_name = "ip6-unicast", - .node_name = "hicnpg-data", - .runs_before = VNET_FEATURES ("ip6-inacl"), +const static char *const hicnpg_server_ip4_nodes[] = { + "hicnpg-server-4", + NULL, }; -/* - * End of packet-generator client node - */ - -/* - * Beginning of packet-generation server node - */ - -/* Registration struct for a graph node */ -vlib_node_registration_t hicn_pg_server_node; - -/* Stats, which end up called "error" even though they aren't... */ -#define foreach_icnpg_server_error \ - _ (PROCESSED, "hICN PG Server packets processed") \ - _ (DROPPED, "hICN PG Server packets dropped") - -typedef enum -{ -#define _(sym, str) HICNPG_SERVER_ERROR_##sym, - foreach_icnpg_server_error -#undef _ - HICNPG_SERVER_N_ERROR, -} icnpg_server_error_t; - -static char *icnpg_server_error_strings[] = { -#define _(sym, string) string, - foreach_icnpg_server_error -#undef _ +const static char *const hicnpg_server_ip6_nodes[] = { + "hicnpg-server-6", + NULL, }; -/* - * Next graph nodes, which reference the list in the actual registration - * block below - */ -typedef enum -{ - HICNPG_SERVER_NEXT_V4_LOOKUP, - HICNPG_SERVER_NEXT_V6_LOOKUP, - HICNPG_SERVER_NEXT_DROP, - HICNPG_SERVER_N_NEXT, -} icnpg_server_next_t; - -/* Trace context struct */ -typedef struct -{ - u32 next_index; - u32 sw_if_index; - u8 pkt_type; - u16 msg_type; -} hicnpg_server_trace_t; +const static char *const *const hicnpg_server_nodes[DPO_PROTO_NUM] = { + [DPO_PROTO_IP4] = hicnpg_server_ip4_nodes, + [DPO_PROTO_IP6] = hicnpg_server_ip6_nodes +}; -/* packet trace format function */ -static u8 * -format_icnpg_server_trace (u8 *s, va_list *args) +clib_error_t * +hicnpg_server_add_and_lock (fib_prefix_t *prefix, u32 *hicnpg_server_index, + ip46_address_t *locator, size_t payload_size) { - CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); - CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); - hicnpg_server_trace_t *t = va_arg (*args, hicnpg_server_trace_t *); + hicnpg_server_t *hpg; + index_t hpgi; + u32 fib_index; + fib_node_index_t fib_entry_index; + u32 buffer_index; + vlib_buffer_t *rb = NULL; - s = format ( - s, "HICNPG SERVER: pkt: %d, msg %d, sw_if_index %d, next index %d", - (int) t->pkt_type, (int) t->msg_type, t->sw_if_index, t->next_index); - return (s); -} + // Retrieve hicn fib table + fib_index = + fib_table_find_or_create_and_lock (prefix->fp_proto, 0, hicn_fib_src); -/* - * Node function for the icn packet-generator server. - */ -static uword -hicnpg_node_server_fn (vlib_main_t *vm, vlib_node_runtime_t *node, - vlib_frame_t *frame) -{ - u32 n_left_from, *from, *to_next; - icnpg_server_next_t next_index; - u32 pkts_processed = 0, pkts_dropped = 0; - u32 bi0, bi1; - vlib_buffer_t *b0, *b1; - u8 pkt_type0 = 0, pkt_type1 = 0; - u16 msg_type0 = 0, msg_type1 = 0; - hicn_header_t *hicn0 = NULL, *hicn1 = NULL; - hicn_name_t name0, name1; - u16 namelen0, namelen1; + // Check the prefix we are adding is not already in the table + fib_entry_index = fib_table_lookup_exact_match (fib_index, prefix); - hicnpg_server_main_t *hpgsm = &hicnpg_server_main; - - from = vlib_frame_vector_args (frame); - - n_left_from = frame->n_vectors; - next_index = node->cached_next_index; - - while (n_left_from > 0) + if (fib_entry_index != FIB_NODE_INDEX_INVALID) { - u32 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 next0 = HICNPG_SERVER_NEXT_DROP; - u32 next1 = HICNPG_SERVER_NEXT_DROP; - u8 isv6_0 = 0; - u8 isv6_1 = 0; - u32 sw_if_index0, sw_if_index1; - - /* 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, LOAD); - vlib_prefetch_buffer_header (p3, LOAD); - - CLIB_PREFETCH (p2->data, (2 * CLIB_CACHE_LINE_BYTES), STORE); - CLIB_PREFETCH (p3->data, (2 * CLIB_CACHE_LINE_BYTES), STORE); - } - - /* - * speculatively enqueue b0 and 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); - - sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; - sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX]; - - vnet_buffer (b0)->sw_if_index[VLIB_TX] = ~0; - vnet_buffer (b1)->sw_if_index[VLIB_TX] = ~0; - - u32 match0 = match_interest (b0, hpgsm->pgen_srv_hicn_name); - u32 match1 = match_interest (b1, hpgsm->pgen_srv_hicn_name); - - if (match0) - { - next0 = match0 - 1; - } - else if (hicn_interest_parse_pkt (b0, &name0, &namelen0, &hicn0, - &isv6_0) == HICN_ERROR_NONE) - { - /* this node grabs only interests */ - vlib_buffer_t *rb = NULL; - rb = vlib_get_buffer (vm, hpgsm->pgen_svr_buffer_idx); - - isv6_0 ? convert_interest_to_data_v6 (vm, b0, rb, bi0) : - convert_interest_to_data_v4 (vm, b0, rb, bi0); - - next0 = isv6_0 ? HICNPG_SERVER_NEXT_V6_LOOKUP : - HICNPG_SERVER_NEXT_V4_LOOKUP; - } - - if (match1) - { - next1 = match1 - 1; - } - else if (hicn_interest_parse_pkt (b1, &name1, &namelen1, &hicn1, - &isv6_1) == HICN_ERROR_NONE) - { - /* this node grabs only interests */ - vlib_buffer_t *rb = NULL; - rb = vlib_get_buffer (vm, hpgsm->pgen_svr_buffer_idx); - - isv6_1 ? convert_interest_to_data_v6 (vm, b1, rb, bi1) : - convert_interest_to_data_v4 (vm, b1, rb, bi1); - - next1 = isv6_1 ? HICNPG_SERVER_NEXT_V6_LOOKUP : - HICNPG_SERVER_NEXT_V4_LOOKUP; - } - pkts_processed += 2; - - if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE))) - { - if (b0->flags & VLIB_BUFFER_IS_TRACED) - { - hicnpg_server_trace_t *t = - vlib_add_trace (vm, node, b0, sizeof (*t)); - t->pkt_type = pkt_type0; - t->msg_type = msg_type0; - t->sw_if_index = sw_if_index0; - t->next_index = next0; - } - if (b1->flags & VLIB_BUFFER_IS_TRACED) - { - hicnpg_server_trace_t *t = - vlib_add_trace (vm, node, b1, sizeof (*t)); - t->pkt_type = pkt_type1; - t->msg_type = msg_type1; - t->sw_if_index = sw_if_index1; - t->next_index = next1; - } - } - if (next0 == HICNPG_SERVER_NEXT_DROP) - { - pkts_dropped++; - } - if (next1 == HICNPG_SERVER_NEXT_DROP) - { - pkts_dropped++; - } - /* - * verify speculative enqueues, maybe switch current - * next frame - */ - 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 next0 = HICNPG_SERVER_NEXT_DROP; - u32 sw_if_index0 = ~0; - u8 isv6_0 = 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); - - sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; - vnet_buffer (b0)->sw_if_index[VLIB_TX] = ~0; - - u32 match0 = match_interest (b0, hpgsm->pgen_srv_hicn_name); - - if (match0) - { - next0 = match0 - 1; - } - else if (hicn_interest_parse_pkt (b0, &name0, &namelen0, &hicn0, - &isv6_0) == HICN_ERROR_NONE) - { - /* this node grabs only interests */ - vlib_buffer_t *rb = NULL; - rb = vlib_get_buffer (vm, hpgsm->pgen_svr_buffer_idx); - - isv6_0 ? convert_interest_to_data_v6 (vm, b0, rb, bi0) : - convert_interest_to_data_v4 (vm, b0, rb, bi0); - - next0 = isv6_0 ? HICNPG_SERVER_NEXT_V6_LOOKUP : - HICNPG_SERVER_NEXT_V4_LOOKUP; - } - if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) && - (b0->flags & VLIB_BUFFER_IS_TRACED))) - { - hicnpg_server_trace_t *t = - vlib_add_trace (vm, node, b0, sizeof (*t)); - t->pkt_type = pkt_type0; - t->msg_type = msg_type0; - t->sw_if_index = sw_if_index0; - t->next_index = next0; - } - pkts_processed += 1; - - if (next0 == HICNPG_SERVER_NEXT_DROP) - { - pkts_dropped++; - } - /* - * 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); + // Route already existing. + return clib_error_return (0, "Route exist already."); } - vlib_node_increment_counter (vm, hicn_pg_server_node.index, - HICNPG_SERVER_ERROR_PROCESSED, pkts_processed); - vlib_node_increment_counter (vm, hicn_pg_server_node.index, - HICNPG_SERVER_ERROR_DROPPED, pkts_dropped); - - return (frame->n_vectors); -} - -void -convert_interest_to_data_v4 (vlib_main_t *vm, vlib_buffer_t *b0, - vlib_buffer_t *rb, u32 bi0) -{ - hicn_header_t *h0 = vlib_buffer_get_current (b0); - - /* Get the packet length */ - u16 pkt_len = clib_net_to_host_u16 (h0->v4.ip.len); + // Allocate packet buffer + int n_buf = vlib_buffer_alloc (vlib_get_main (), &buffer_index, 1); - /* - * Rule of thumb: We want the size of the IP packet to be <= 1500 bytes - */ - u16 bytes_to_copy = rb->current_length; - if ((bytes_to_copy + pkt_len) > 1500) + if (n_buf == 0) { - bytes_to_copy = 1500 - pkt_len; + return clib_error_return (0, "Impossible to allocate paylod buffer."); } - /* Add content to the data packet */ - vlib_buffer_add_data (vm, &bi0, rb->data, bytes_to_copy); - b0 = vlib_get_buffer (vm, bi0); - - h0 = vlib_buffer_get_current (b0); - - ip4_address_t src_addr = h0->v4.ip.saddr; - h0->v4.ip.saddr = h0->v4.ip.daddr; - h0->v4.ip.daddr = src_addr; - - h0->v4.ip.len = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)); - h0->v4.ip.csum = ip4_header_checksum ((ip4_header_t *) &(h0->v4.ip)); - calculate_tcp_checksum_v4 (vm, b0); + // Initialize the buffer data with zeros + rb = vlib_get_buffer (vlib_get_main (), buffer_index); + memset (rb->data, 0, payload_size); + rb->current_length = payload_size; + + // We can proceed. Get a new hicnpg_server_t + pool_get_aligned_zero (hicnpg_server_pool, hpg, 2 * CLIB_CACHE_LINE_BYTES); + hpgi = hpg - hicnpg_server_pool; + + // Set DPO + dpo_set ( + &hpg->dpo, hicnpg_server_dpo_type, + (ip46_address_is_ip4 (&prefix->fp_addr) ? DPO_PROTO_IP4 : DPO_PROTO_IP6), + hpgi); + + // Add the route via the hicnpg_server_dpo_type. In this way packets will + // endup in the hicnpg_server node + CLIB_UNUSED (fib_node_index_t new_fib_node_index) = + fib_table_entry_special_dpo_add ( + fib_index, prefix, hicn_fib_src, + (FIB_ENTRY_FLAG_EXCLUSIVE | FIB_ENTRY_FLAG_LOOSE_URPF_EXEMPT), + &hpg->dpo); + +#if 0 + vlib_validate_combined_counter (&(udp_encap_counters), uei); + vlib_zero_combined_counter (&(udp_encap_counters), uei); +#endif + + // Init remaining struct fields + fib_node_init (&hpg->fib_node, hicnpg_server_fib_node_type); + fib_node_lock (&hpg->fib_node); + hpg->fib_index = fib_index; + hpg->prefix = *prefix; + hpg->buffer_index = buffer_index; + hpg->fib_entry_index = fib_entry_index; + hpg->hicn_locator = *locator; + + // track the destination address + // hpg->fib_entry_index = + // fib_entry_track (fib_index, &hpg->prefix, + // hicnpg_server_fib_node_type, hpgi, &hpg->fib_sibling); + // hicnpg_server_restack (hpg); + + HICN_DEBUG ("Calling hicn enable for pg-server face"); + + hicn_face_id_t *vec_faces = NULL; + hicn_route_enable (prefix, &vec_faces); + if (vec_faces != NULL) + vec_free (vec_faces); + + // Return the index of the hicnpg_server_t + *hicnpg_server_index = hpgi; + + return NULL; } -void -convert_interest_to_data_v6 (vlib_main_t *vm, vlib_buffer_t *b0, - vlib_buffer_t *rb, u32 bi0) +clib_error_t * +hicn_pg_init (vlib_main_t *vm) { - hicn_header_t *h0 = vlib_buffer_get_current (b0); - - /* Get the packet length */ - uint16_t pkt_len = - clib_net_to_host_u16 (h0->v6.ip.len) + sizeof (ip6_header_t); + hicnpg_server_fib_node_type = fib_node_register_new_type ( + "hicnpg_server_fib_node", &hicnpg_server_fib_vft); - /* - * Figure out how many bytes we can add to the content - * - * Rule of thumb: We want the size of the IP packet to be <= 1400 bytes - */ - u16 bytes_to_copy = rb->current_length; - if ((bytes_to_copy + pkt_len) > 1500) - { - bytes_to_copy = 1500 - pkt_len; - } - /* Add content to the data packet */ - vlib_buffer_add_data (vm, &bi0, rb->data, bytes_to_copy); + hicnpg_server_dpo_type = + dpo_register_new_type (&hicnpg_server_dpo_vft, hicnpg_server_nodes); - b0 = vlib_get_buffer (vm, bi0); - - h0 = vlib_buffer_get_current (b0); - ip6_address_t src_addr = h0->v6.ip.saddr; - h0->v6.ip.saddr = h0->v6.ip.daddr; - h0->v6.ip.daddr = src_addr; - - h0->v6.ip.len = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) - - sizeof (ip6_header_t)); - h0->v6.tcp.data_offset_and_reserved |= 0x0f; - h0->v6.tcp.urg_ptr = htons (0xffff); - - calculate_tcp_checksum_v6 (vm, b0); + return NULL; } -VLIB_REGISTER_NODE(hicn_pg_server_node) = -{ - .function = hicnpg_node_server_fn, - .name = "hicnpg-server", - .vector_size = sizeof(u32), - .format_trace = format_icnpg_server_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - .n_errors = ARRAY_LEN(icnpg_server_error_strings), - .error_strings = icnpg_server_error_strings, - .n_next_nodes = HICNPG_SERVER_N_NEXT, - /* edit / add dispositions here */ - .next_nodes = - { - [HICNPG_SERVER_NEXT_V4_LOOKUP] = "ip4-lookup", - [HICNPG_SERVER_NEXT_V6_LOOKUP] = "ip6-lookup", - [HICNPG_SERVER_NEXT_DROP] = "error-drop", - }, -}; - -VNET_FEATURE_INIT (hicn_pg_server_ip6, static) = { - .arc_name = "ip6-unicast", - .node_name = "hicnpg-server", - .runs_before = VNET_FEATURES ("ip6-inacl"), -}; - -VNET_FEATURE_INIT (hicn_pg_server_ip4, static) = { - .arc_name = "ip4-unicast", - .node_name = "hicnpg-server", - .runs_before = VNET_FEATURES ("ip4-inacl"), -}; - -/* - * End of packet-generator server node - */ - /* * fd.io coding-style-patch-verification: ON * * Local Variables: eval: (c-set-style "gnu") End: - */ + */
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