/* * Copyright (c) 2017 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include <vnet/vnet.h> #include <vlib/vlib.h> #include <vlibapi/api.h> #include <vlibmemory/api.h> #include <vnet/ip/ip.h> #include <vnet/ip/ip6_hop_by_hop.h> #include <ioam/encap/ip6_ioam_trace.h> #include <ioam/encap/ip6_ioam_e2e.h> #include <ioam/udp-ping/udp_ping_packet.h> #include <ioam/udp-ping/udp_ping.h> #include <ioam/udp-ping/udp_ping_util.h> #include <vnet/srv6/sr_packet.h> typedef enum { UDP_PING_NEXT_DROP, UDP_PING_NEXT_PUNT, UDP_PING_NEXT_UDP_LOOKUP, UDP_PING_NEXT_ICMP, UDP_PING_NEXT_IP6_LOOKUP, UDP_PING_NEXT_IP6_DROP, UDP_PING_N_NEXT, } udp_ping_next_t; #define foreach_udp_ping_error \ _(BADHBH, "Malformed hop-by-hop header") typedef enum { #define _(sym,str) UDP_PING_ERROR_##sym, foreach_udp_ping_error #undef _ UDP_PING_N_ERROR, } udp_ping_error_t; static char *udp_ping_error_strings[] = { #define _(sym,string) string, foreach_udp_ping_error #undef _ }; udp_ping_main_t udp_ping_main; uword udp_ping_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f); extern int ip6_hbh_ioam_trace_data_list_handler (vlib_buffer_t * b, ip6_header_t * ip, ip6_hop_by_hop_option_t * opt); typedef struct { ip6_address_t src; ip6_address_t dst; u16 src_port; u16 dst_port; u16 handle; u16 next_index; u8 msg_type; } udp_ping_trace_t; /* packet trace format function */ static u8 * format_udp_ping_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_ping_trace_t *t = va_arg (*args, udp_ping_trace_t *); s = format (s, "udp-ping-local: src %U, dst %U, src_port %u, dst_port %u " "handle %u, next_index %u, msg_type %u", format_ip6_address, &t->src, format_ip6_address, &t->dst, t->src_port, t->dst_port, t->handle, t->next_index, t->msg_type); return s; } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (udp_ping_node, static) = { .function = udp_ping_process, .type = VLIB_NODE_TYPE_PROCESS, .name = "udp-ping-process", }; /* *INDENT-ON* */ void udp_ping_calculate_timer_interval (void) { int i; ip46_udp_ping_flow *flow = NULL; u16 min_interval = 0x1e9; for (i = 0; i < vec_len (udp_ping_main.ip46_flow); i++) { if (pool_is_free_index (udp_ping_main.ip46_flow, i)) continue; flow = pool_elt_at_index (udp_ping_main.ip46_flow, i); if (min_interval > flow->udp_data.interval) min_interval = flow->udp_data.interval; } if (udp_ping_main.timer_interval != min_interval) { udp_ping_main.timer_interval = min_interval; vlib_process_signal_event (udp_ping_main.vlib_main, udp_ping_node.index, EVENT_SIG_RECHECK, 0); } } void ip46_udp_ping_set_flow (ip46_address_t src, ip46_address_t dst, u16 start_src_port, u16 end_src_port, u16 start_dst_port, u16 end_dst_port, u16 interval, u8 fault_det, u8 is_disable) { u8 found = 0; ip46_udp_ping_flow *flow = NULL; int i; for (i = 0; i < vec_len (udp_ping_main.ip46_flow); i++) { if (pool_is_free_index (udp_ping_main.ip46_flow, i)) continue; flow = pool_elt_at_index (udp_ping_main.ip46_flow, i); if ((0 == udp_ping_compare_flow (src, dst, start_src_port, end_src_port, start_dst_port, end_dst_port, flow))) { found = 1; break; } } if (found) { u16 cur_interval; if (is_disable) { cur_interval = flow->udp_data.interval; udp_ping_free_flow_data (flow); pool_put_index (udp_ping_main.ip46_flow, i); if (udp_ping_main.timer_interval == interval) udp_ping_calculate_timer_interval (); return; } cur_interval = flow->udp_data.interval; flow->udp_data.interval = interval; if (udp_ping_main.timer_interval > interval) { udp_ping_main.timer_interval = interval; vlib_process_signal_event (udp_ping_main.vlib_main, udp_ping_node.index, EVENT_SIG_RECHECK, 0); } else if (udp_ping_main.timer_interval == cur_interval) udp_ping_calculate_timer_interval (); return; } /* Delete operation and item not found */ if (is_disable) return; /* Alloc new session */ pool_get_aligned (udp_ping_main.ip46_flow, flow, CLIB_CACHE_LINE_BYTES); udp_ping_populate_flow (src, dst, start_src_port, end_src_port, start_dst_port, end_dst_port, interval, fault_det, flow); udp_ping_create_rewrite (flow, (flow - udp_ping_main.ip46_flow)); if (udp_ping_main.timer_interval > interval) { udp_ping_main.timer_interval = interval; vlib_process_signal_event (udp_ping_main.vlib_main, udp_ping_node.index, EVENT_SIG_RECHECK, 0); } return; } uword unformat_port_range (unformat_input_t * input, va_list * args) { u16 *start_port, *end_port; uword c; u8 colon_present = 0; start_port = va_arg (*args, u16 *); end_port = va_arg (*args, u16 *); *start_port = *end_port = 0; /* Get start port */ while ((c = unformat_get_input (input)) != UNFORMAT_END_OF_INPUT) { switch (c) { case '0' ... '9': *start_port = ((*start_port) * 10) + (c - '0'); break; case ':': colon_present = 1; break; default: return 0; } if (colon_present) break; } if (!colon_present) return 0; /* Get end port */ while ((c = unformat_get_input (input)) != UNFORMAT_END_OF_INPUT) { switch (c) { case '0' ... '9': *end_port = ((*end_port) * 10) + (c - '0'); break; default: return 1; } } if (end_port < start_port) return 0; return 1; } static clib_error_t * set_udp_ping_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { ip46_address_t dst, src; u16 start_src_port, end_src_port; u16 start_dst_port, end_dst_port; u32 interval; u8 is_disable = 0; u8 fault_det = 0; while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { if (unformat (input, "src %U", unformat_ip46_address, &src, IP46_TYPE_ANY)) ; else if (unformat (input, "src-port-range %U", unformat_port_range, &start_src_port, &end_src_port)) ; else if (unformat (input, "dst %U", unformat_ip46_address, &dst, IP46_TYPE_ANY)) ; else if (unformat (input, "dst-port-range %U", unformat_port_range, &start_dst_port, &end_dst_port)) ; else if (unformat (input, "interval %d", &interval)) ; else if (unformat (input, "fault-detect")) fault_det = 1; else if (unformat (input, "disable")) is_disable = 1; else break; } ip46_udp_ping_set_flow (src, dst, start_src_port, end_src_port, start_dst_port, end_dst_port, (u16) interval, fault_det, is_disable); return 0; } /* *INDENT-OFF* */ VLIB_CLI_COMMAND (set_udp_ping_command, static) = { .path = "set udp-ping", .short_help = "set udp-ping src <local IPv6 address> src-port-range <local port range> \ dst <remote IPv6 address> dst-port-range <destination port range> \ interval <time interval in sec for which ping packet will be sent> \ [disable]", .function = set_udp_ping_command_fn, }; /* *INDENT-ON* */ static clib_error_t * show_udp_ping_summary_cmd_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { u8 *s = 0; int i, j; ip46_udp_ping_flow *ip46_flow; u16 src_port, dst_port; udp_ping_flow_data *stats; s = format (s, "UDP-Ping data:\n"); for (i = 0; i < vec_len (udp_ping_main.ip46_flow); i++) { if (pool_is_free_index (udp_ping_main.ip46_flow, i)) continue; ip46_flow = pool_elt_at_index (udp_ping_main.ip46_flow, i); s = format (s, "Src: %U, Dst: %U\n", format_ip46_address, &ip46_flow->src, IP46_TYPE_ANY, format_ip46_address, &ip46_flow->dst, IP46_TYPE_ANY); s = format (s, "Start src port: %u, End src port: %u\n", ip46_flow->udp_data.start_src_port, ip46_flow->udp_data.end_src_port); s = format (s, "Start dst port: %u, End dst port: %u\n", ip46_flow->udp_data.start_dst_port, ip46_flow->udp_data.end_dst_port); s = format (s, "Interval: %u\n", ip46_flow->udp_data.interval); j = 0; for (src_port = ip46_flow->udp_data.start_src_port; src_port <= ip46_flow->udp_data.end_src_port; src_port++) { for (dst_port = ip46_flow->udp_data.start_dst_port; dst_port <= ip46_flow->udp_data.end_dst_port; dst_port++) { stats = ip46_flow->udp_data.stats + j; s = format (s, "\nSrc Port - %u, Dst Port - %u, Flow CTX - %u\n", src_port, dst_port, stats->flow_ctx); s = format (s, "Path State - %s\n", (stats->retry > MAX_PING_RETRIES) ? "Down" : "Up"); s = format (s, "Path Data:\n"); s = print_analyse_flow (s, &ip46_flow->udp_data. stats[j].analyse_data); j++; } } s = format (s, "\n\n"); } vlib_cli_output (vm, "%v", s); vec_free (s); return 0; } /* *INDENT-OFF* */ VLIB_CLI_COMMAND (show_udp_ping_cmd, static) = { .path = "show udp-ping summary", .short_help = "Summary of udp-ping", .function = show_udp_ping_summary_cmd_fn, }; /* *INDENT-ON* */ /** * @brief UDP-Ping Process node. * @node udp-ping-process * * This is process node which wakes up when periodically to send * out udp probe packets for all configured sessions. * * @param vm vlib_main_t corresponding to the current thread. * @param node vlib_node_runtime_t data for this node. * @param frame vlib_frame_t whose contents should be dispatched. * */ uword udp_ping_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f) { f64 now; uword *event_data = 0; int i; ip46_udp_ping_flow *ip46_flow; while (1) { vec_reset_length (event_data); vlib_process_wait_for_event_or_clock (vm, udp_ping_main.timer_interval); (void) vlib_process_get_events (vm, &event_data); now = vlib_time_now (vm); for (i = 0; i < vec_len (udp_ping_main.ip46_flow); i++) { if (pool_is_free_index (udp_ping_main.ip46_flow, i)) continue; ip46_flow = pool_elt_at_index (udp_ping_main.ip46_flow, i); if (ip46_flow->udp_data.next_send_time < now) udp_ping_send_ip6_pak (udp_ping_main.vlib_main, ip46_flow); } } return 0; } /** * @brief HopByHop analyse function for udp-ping response. * * Walks through all hbh options present in udp-ping response * and uses analyser library for the analysis. * */ void udp_ping_analyse_hbh (vlib_buffer_t * b0, u32 flow_id, u16 src_port, u16 dst_port, ip6_hop_by_hop_option_t * opt0, ip6_hop_by_hop_option_t * limit0, u16 len) { u8 type0; ip46_udp_ping_flow *ip46_flow; u16 flow_index; ioam_analyser_data_t *data; ioam_e2e_option_t *e2e; ioam_trace_option_t *trace; /* If the packet doesnt match UDP session then return */ if (PREDICT_FALSE (pool_is_free_index (udp_ping_main.ip46_flow, flow_id))) return; ip46_flow = udp_ping_main.ip46_flow + flow_id; /* Check port is within range */ if (PREDICT_FALSE ((src_port < ip46_flow->udp_data.start_src_port) || (src_port > ip46_flow->udp_data.end_src_port) || (dst_port < ip46_flow->udp_data.start_dst_port) || (dst_port > ip46_flow->udp_data.end_dst_port))) return; flow_index = (src_port - ip46_flow->udp_data.start_src_port) * (ip46_flow->udp_data.end_dst_port - ip46_flow->udp_data.start_dst_port + 1); flow_index += (dst_port - ip46_flow->udp_data.start_dst_port); data = &(ip46_flow->udp_data.stats[flow_index].analyse_data); data->pkt_counter++; data->bytes_counter += len; vnet_buffer (b0)->l2_classify.opaque_index = ip46_flow->udp_data.stats[flow_index].flow_ctx; while (opt0 < limit0) { type0 = opt0->type; switch (type0) { case HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST: /* Add trace for here as it hasnt been done yet */ vnet_buffer (b0)->sw_if_index[VLIB_TX] = ~0; trace = (ioam_trace_option_t *) opt0; if (PREDICT_FALSE (trace->trace_hdr.ioam_trace_type & BIT_LOOPBACK_REPLY)) { ip6_ioam_analyse_hbh_trace_loopback (data, &trace->trace_hdr, (trace->hdr.length - 2)); return; } ip6_hbh_ioam_trace_data_list_handler (b0, vlib_buffer_get_current (b0), opt0); (void) ip6_ioam_analyse_hbh_trace (data, &trace->trace_hdr, len, (trace->hdr.length - 2)); break; case HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE: e2e = (ioam_e2e_option_t *) opt0; (void) ip6_ioam_analyse_hbh_e2e (data, &e2e->e2e_hdr, len); break; case 0: /* Pad1 */ opt0 = (ip6_hop_by_hop_option_t *) ((u8 *) opt0) + 1; continue; case 1: /* PadN */ break; default: break; } opt0 = (ip6_hop_by_hop_option_t *) (((u8 *) opt0) + opt0->length + sizeof (ip6_hop_by_hop_option_t)); } ip46_flow->udp_data.stats[flow_index].retry = 0; } /** * @brief UDP-Ping request/response handler function. * * Checks udp-ping packet type - request/response and handles them. * If not udp-ping packet then, strips off hbh options and enques * packet to protocol registered node to enable next protocol processing. * */ void udp_ping_local_analyse (vlib_node_runtime_t * node, vlib_buffer_t * b0, ip6_header_t * ip0, ip6_hop_by_hop_header_t * hbh0, u16 * next0) { ip6_main_t *im = &ip6_main; ip_lookup_main_t *lm = &im->lookup_main; *next0 = UDP_PING_NEXT_IP6_DROP; /* * Sanity check: hbh header length must be less than * b0->current_length. */ if (PREDICT_FALSE ((hbh0->length + 1) << 3) >= b0->current_length) { *next0 = UDP_PING_NEXT_DROP; b0->error = node->errors[UDP_PING_ERROR_BADHBH]; return; } if (PREDICT_TRUE (hbh0->protocol == IP_PROTOCOL_UDP)) { ip6_hop_by_hop_option_t *opt0; ip6_hop_by_hop_option_t *limit0; u16 p_len0; udp_ping_t *udp0; /* Check for udp ping packet */ udp0 = (udp_ping_t *) ((u8 *) hbh0 + ((hbh0->length + 1) << 3)); opt0 = (ip6_hop_by_hop_option_t *) (hbh0 + 1); if ((udp0->ping_data.probe_marker1 == clib_host_to_net_u32 (UDP_PING_PROBE_MARKER1)) && (udp0->ping_data.probe_marker2 == clib_host_to_net_u32 (UDP_PING_PROBE_MARKER2))) { if (udp0->ping_data.msg_type == UDP_PING_PROBE) { udp_ping_create_reply_from_probe_ip6 (ip0, hbh0, udp0); /* Skip e2e processing */ vnet_buffer (b0)->l2_classify.opaque_index = 0x7FFFFFFF; *next0 = UDP_PING_NEXT_IP6_LOOKUP; return; } /* Reply */ opt0 = (ip6_hop_by_hop_option_t *) (hbh0 + 1); limit0 = (ip6_hop_by_hop_option_t *) ((u8 *) hbh0 + ((hbh0->length + 1) << 3)); p_len0 = clib_net_to_host_u16 (ip0->payload_length); udp_ping_analyse_hbh (b0, clib_net_to_host_u16 (udp0-> ping_data.sender_handle), clib_net_to_host_u16 (udp0->udp.dst_port), clib_net_to_host_u16 (udp0->udp.src_port), opt0, limit0, p_len0); /* UDP Ping packet, so return */ return; } } /* If next header is SR, then destination may get overwritten to * remote address. So pass it to SR processing as it may be local packet * afterall */ if (PREDICT_FALSE (hbh0->protocol == IPPROTO_IPV6_ROUTE)) goto end; /* Other case remove hbh-ioam headers */ u64 *copy_dst0, *copy_src0; u16 new_l0; vlib_buffer_advance (b0, (hbh0->length + 1) << 3); new_l0 = clib_net_to_host_u16 (ip0->payload_length) - ((hbh0->length + 1) << 3); ip0->payload_length = clib_host_to_net_u16 (new_l0); ip0->protocol = hbh0->protocol; copy_src0 = (u64 *) ip0; copy_dst0 = copy_src0 + (hbh0->length + 1); copy_dst0[4] = copy_src0[4]; copy_dst0[3] = copy_src0[3]; copy_dst0[2] = copy_src0[2]; copy_dst0[1] = copy_src0[1]; copy_dst0[0] = copy_src0[0]; end: *next0 = lm->local_next_by_ip_protocol[hbh0->protocol]; return; } /** * @brief udp ping request/response packet receive node. * @node udp-ping-local * * This function receives udp ping request/response packets and process them. * For request packets, response is created and sent. * For response packets, they are analysed and results stored. * * @param vm vlib_main_t corresponding to the current thread. * @param node vlib_node_runtime_t data for this node. * @param frame vlib_frame_t whose contents should be dispatched. * * @par Graph mechanics: buffer, next index usage * * <em>Uses:</em> * - <code>udp_ping_local_analyse(node, p0, ip0, hbh0, &next0)</code> * - Checks packet type - request/respnse and process them. * * <em>Next Index:</em> * - Dispatches the packet to ip6-lookup/ip6-drop depending on type of packet. */ static uword udp_ping_local_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { udp_ping_next_t next_index; u32 *from, *to_next, n_left_from, n_left_to_next; from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; next_index = node->cached_next_index; while (n_left_from > 0) { 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; ip6_hop_by_hop_header_t *hbh0, *hbh1; u16 next0, next1; u32 pi0, pi1; /* 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); /* Prefetch 3 cache lines as we need to look deep into packet */ CLIB_PREFETCH (p2->data, 3 * CLIB_CACHE_LINE_BYTES, STORE); CLIB_PREFETCH (p3->data, 3 * CLIB_CACHE_LINE_BYTES, 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); hbh0 = (ip6_hop_by_hop_header_t *) (ip0 + 1); hbh1 = (ip6_hop_by_hop_header_t *) (ip1 + 1); udp_ping_local_analyse (node, p0, ip0, hbh0, &next0); udp_ping_local_analyse (node, p1, ip1, hbh1, &next1); if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE))) { if (p0->flags & VLIB_BUFFER_IS_TRACED) { udp_ping_trace_t *t0 = vlib_add_trace (vm, node, p0, sizeof (*t0)); udp_ping_t *udp0; /* Check for udp ping packet */ udp0 = (udp_ping_t *) ((u8 *) hbh0 + ((hbh0->length + 1) << 3)); t0->src = ip0->src_address; t0->dst = ip0->dst_address; t0->src_port = clib_net_to_host_u16 (udp0->udp.src_port); t0->dst_port = clib_net_to_host_u16 (udp0->udp.dst_port); t0->handle = clib_net_to_host_u16 (udp0->ping_data.sender_handle); t0->msg_type = udp0->ping_data.msg_type; t0->next_index = next0; } if (p1->flags & VLIB_BUFFER_IS_TRACED) { udp_ping_trace_t *t1 = vlib_add_trace (vm, node, p1, sizeof (*t1)); udp_ping_t *udp1; /* Check for udp ping packet */ udp1 = (udp_ping_t *) ((u8 *) hbh1 + ((hbh1->length + 1) << 3)); t1->src = ip1->src_address; t1->dst = ip1->dst_address; t1->src_port = clib_net_to_host_u16 (udp1->udp.src_port); t1->dst_port = clib_net_to_host_u16 (udp1->udp.dst_port); t1->handle = clib_net_to_host_u16 (udp1->ping_data.sender_handle); t1->msg_type = udp1->ping_data.msg_type; t1->next_index = next1; } } 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; ip6_header_t *ip0; ip6_hop_by_hop_header_t *hbh0; u16 next0; u32 pi0; pi0 = from[0]; 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); hbh0 = (ip6_hop_by_hop_header_t *) (ip0 + 1); udp_ping_local_analyse (node, p0, ip0, hbh0, &next0); if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE))) { if (p0->flags & VLIB_BUFFER_IS_TRACED) { udp_ping_trace_t *t0 = vlib_add_trace (vm, node, p0, sizeof (*t0)); udp_ping_t *udp0; /* Check for udp ping packet */ udp0 = (udp_ping_t *) ((u8 *) hbh0 + ((hbh0->length + 1) << 3)); t0->src = ip0->src_address; t0->dst = ip0->dst_address; t0->src_port = clib_net_to_host_u16 (udp0->udp.src_port); t0->dst_port = clib_net_to_host_u16 (udp0->udp.dst_port); t0->handle = clib_net_to_host_u16 (udp0->ping_data.sender_handle); t0->msg_type = udp0->ping_data.msg_type; t0->next_index = next0; } } 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* */ /* * Node for udp-ping-local */ VLIB_REGISTER_NODE (udp_ping_local, static) = { .function = udp_ping_local_node_fn, .name = "udp-ping-local", .vector_size = sizeof (u32), .format_trace = format_udp_ping_trace, .type = VLIB_NODE_TYPE_INTERNAL, .n_next_nodes = UDP_PING_N_NEXT, .n_errors = UDP_PING_N_ERROR, .error_strings = udp_ping_error_strings, .next_nodes = { [UDP_PING_NEXT_DROP] = "error-drop", [UDP_PING_NEXT_PUNT] = "error-punt", [UDP_PING_NEXT_UDP_LOOKUP] = "ip6-udp-lookup", [UDP_PING_NEXT_ICMP] = "ip6-icmp-input", [UDP_PING_NEXT_IP6_LOOKUP] = "ip6-lookup", [UDP_PING_NEXT_IP6_DROP] = "ip6-drop", }, }; /* *INDENT-ON* */ static clib_error_t * udp_ping_init (vlib_main_t * vm) { udp_ping_main.vlib_main = vm; udp_ping_main.vnet_main = vnet_get_main (); udp_ping_main.timer_interval = 1e9; ip6_local_hop_by_hop_register_protocol (IP_PROTOCOL_UDP, udp_ping_local.index); return 0; } /* *INDENT-OFF* */ VLIB_INIT_FUNCTION (udp_ping_init) = { .runs_after = VLIB_INITS("ip_main_init"), }; /* *INDENT-ON* */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */