/* * Copyright (c) 2015 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 "map.h" #include <vnet/ip/ip_frag.h> #include <vnet/ip/ip4_to_ip6.h> typedef enum { IP4_MAPT_NEXT_MAPT_TCP_UDP, IP4_MAPT_NEXT_MAPT_ICMP, IP4_MAPT_NEXT_MAPT_FRAGMENTED, IP4_MAPT_NEXT_DROP, IP4_MAPT_N_NEXT } ip4_mapt_next_t; typedef enum { IP4_MAPT_ICMP_NEXT_IP6_LOOKUP, IP4_MAPT_ICMP_NEXT_IP6_FRAG, IP4_MAPT_ICMP_NEXT_DROP, IP4_MAPT_ICMP_N_NEXT } ip4_mapt_icmp_next_t; typedef enum { IP4_MAPT_TCP_UDP_NEXT_IP6_LOOKUP, IP4_MAPT_TCP_UDP_NEXT_IP6_FRAG, IP4_MAPT_TCP_UDP_NEXT_DROP, IP4_MAPT_TCP_UDP_N_NEXT } ip4_mapt_tcp_udp_next_t; typedef enum { IP4_MAPT_FRAGMENTED_NEXT_IP6_LOOKUP, IP4_MAPT_FRAGMENTED_NEXT_IP6_FRAG, IP4_MAPT_FRAGMENTED_NEXT_DROP, IP4_MAPT_FRAGMENTED_N_NEXT } ip4_mapt_fragmented_next_t; //This is used to pass information within the buffer data. //Buffer structure being too small to contain big structures like this. /* *INDENT-OFF* */ typedef CLIB_PACKED (struct { ip6_address_t daddr; ip6_address_t saddr; //IPv6 header + Fragmentation header will be here //sizeof(ip6) + sizeof(ip_frag) - sizeof(ip4) u8 unused[28]; }) ip4_mapt_pseudo_header_t; /* *INDENT-ON* */ typedef struct { map_domain_t *d; u16 recv_port; } icmp_to_icmp6_ctx_t; static int ip4_to_ip6_set_icmp_cb (ip4_header_t * ip4, ip6_header_t * ip6, void *arg) { icmp_to_icmp6_ctx_t *ctx = arg; ip4_map_t_embedded_address (ctx->d, &ip6->src_address, &ip4->src_address); ip6->dst_address.as_u64[0] = map_get_pfx_net (ctx->d, ip4->dst_address.as_u32, ctx->recv_port); ip6->dst_address.as_u64[1] = map_get_sfx_net (ctx->d, ip4->dst_address.as_u32, ctx->recv_port); return 0; } static int ip4_to_ip6_set_inner_icmp_cb (ip4_header_t * ip4, ip6_header_t * ip6, void *arg) { icmp_to_icmp6_ctx_t *ctx = arg; //Note that the source address is within the domain //while the destination address is the one outside the domain ip4_map_t_embedded_address (ctx->d, &ip6->dst_address, &ip4->dst_address); ip6->src_address.as_u64[0] = map_get_pfx_net (ctx->d, ip4->src_address.as_u32, ctx->recv_port); ip6->src_address.as_u64[1] = map_get_sfx_net (ctx->d, ip4->src_address.as_u32, ctx->recv_port); return 0; } static uword ip4_map_t_icmp (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_map_t_icmp_node.index); from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; next_index = node->cached_next_index; vlib_combined_counter_main_t *cm = map_main.domain_counters; u32 thread_index = vm->thread_index; 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; vlib_buffer_t *p0; ip4_mapt_icmp_next_t next0; u8 error0; map_domain_t *d0; u16 len0; icmp_to_icmp6_ctx_t ctx0; ip4_header_t *ip40; next0 = IP4_MAPT_ICMP_NEXT_IP6_LOOKUP; pi0 = to_next[0] = from[0]; from += 1; n_left_from -= 1; to_next += 1; n_left_to_next -= 1; error0 = MAP_ERROR_NONE; p0 = vlib_get_buffer (vm, pi0); vlib_buffer_advance (p0, sizeof (ip4_mapt_pseudo_header_t)); //The pseudo-header is not used len0 = clib_net_to_host_u16 (((ip4_header_t *) vlib_buffer_get_current (p0))->length); d0 = pool_elt_at_index (map_main.domains, vnet_buffer (p0)->map_t.map_domain_index); ip40 = vlib_buffer_get_current (p0); ctx0.recv_port = ip4_get_port (ip40, 1); ctx0.d = d0; if (ctx0.recv_port == 0) { // In case of 1:1 mapping, we don't care about the port if (!(d0->ea_bits_len == 0 && d0->rules)) { error0 = MAP_ERROR_ICMP; goto err0; } } if (icmp_to_icmp6 (p0, ip4_to_ip6_set_icmp_cb, &ctx0, ip4_to_ip6_set_inner_icmp_cb, &ctx0)) { error0 = MAP_ERROR_ICMP; goto err0; } if (vnet_buffer (p0)->map_t.mtu < p0->current_length) { vnet_buffer (p0)->ip_frag.mtu = vnet_buffer (p0)->map_t.mtu; vnet_buffer (p0)->ip_frag.next_index = IP_FRAG_NEXT_IP6_LOOKUP; next0 = IP4_MAPT_ICMP_NEXT_IP6_FRAG; } err0: if (PREDICT_TRUE (error0 == MAP_ERROR_NONE)) { vlib_increment_combined_counter (cm + MAP_DOMAIN_COUNTER_TX, thread_index, vnet_buffer (p0)-> map_t.map_domain_index, 1, len0); } else { next0 = IP4_MAPT_ICMP_NEXT_DROP; } p0->error = error_node->errors[error0]; 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; } /* * Translate fragmented IPv4 UDP/TCP packet to IPv6. */ always_inline int map_ip4_to_ip6_fragmented (vlib_buffer_t * p, ip4_mapt_pseudo_header_t * pheader) { ip4_header_t *ip4; ip6_header_t *ip6; ip6_frag_hdr_t *frag; ip4 = vlib_buffer_get_current (p); frag = (ip6_frag_hdr_t *) u8_ptr_add (ip4, sizeof (*ip4) - sizeof (*frag)); ip6 = (ip6_header_t *) u8_ptr_add (ip4, sizeof (*ip4) - sizeof (*frag) - sizeof (*ip6)); vlib_buffer_advance (p, sizeof (*ip4) - sizeof (*ip6) - sizeof (*frag)); //We know that the protocol was one of ICMP, TCP or UDP //because the first fragment was found and cached frag->next_hdr = (ip4->protocol == IP_PROTOCOL_ICMP) ? IP_PROTOCOL_ICMP6 : ip4->protocol; frag->identification = frag_id_4to6 (ip4->fragment_id); frag->rsv = 0; frag->fragment_offset_and_more = ip6_frag_hdr_offset_and_more (ip4_get_fragment_offset (ip4), clib_net_to_host_u16 (ip4->flags_and_fragment_offset) & IP4_HEADER_FLAG_MORE_FRAGMENTS); ip6->ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 ((6 << 28) + (ip4->tos << 20)); ip6->payload_length = clib_host_to_net_u16 (clib_net_to_host_u16 (ip4->length) - sizeof (*ip4) + sizeof (*frag)); ip6->hop_limit = ip4->ttl; ip6->protocol = IP_PROTOCOL_IPV6_FRAGMENTATION; ip6->dst_address.as_u64[0] = pheader->daddr.as_u64[0]; ip6->dst_address.as_u64[1] = pheader->daddr.as_u64[1]; ip6->src_address.as_u64[0] = pheader->saddr.as_u64[0]; ip6->src_address.as_u64[1] = pheader->saddr.as_u64[1]; return 0; } static uword ip4_map_t_fragmented (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; from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; next_index = node->cached_next_index; vlib_node_runtime_t *error_node = vlib_node_get_runtime (vm, ip4_map_t_fragmented_node.index); 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; vlib_buffer_t *p0; ip4_mapt_pseudo_header_t *pheader0; ip4_mapt_fragmented_next_t next0; next0 = IP4_MAPT_FRAGMENTED_NEXT_IP6_LOOKUP; pi0 = to_next[0] = from[0]; from += 1; n_left_from -= 1; to_next += 1; n_left_to_next -= 1; p0 = vlib_get_buffer (vm, pi0); //Accessing pseudo header pheader0 = vlib_buffer_get_current (p0); vlib_buffer_advance (p0, sizeof (*pheader0)); if (map_ip4_to_ip6_fragmented (p0, pheader0)) { p0->error = error_node->errors[MAP_ERROR_FRAGMENT_DROPPED]; next0 = IP4_MAPT_FRAGMENTED_NEXT_DROP; } else { if (vnet_buffer (p0)->map_t.mtu < p0->current_length) { vnet_buffer (p0)->ip_frag.mtu = vnet_buffer (p0)->map_t.mtu; vnet_buffer (p0)->ip_frag.next_index = IP_FRAG_NEXT_IP6_LOOKUP; next0 = IP4_MAPT_FRAGMENTED_NEXT_IP6_FRAG; } } 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; } /* * Translate IPv4 UDP/TCP packet to IPv6. */ always_inline int map_ip4_to_ip6_tcp_udp (vlib_buffer_t * p, ip4_mapt_pseudo_header_t * pheader) { map_main_t *mm = &map_main; ip4_header_t *ip4; ip6_header_t *ip6; ip_csum_t csum; u16 *checksum; ip6_frag_hdr_t *frag; u32 frag_id; ip4_address_t old_src, old_dst; ip4 = vlib_buffer_get_current (p); if (ip4->protocol == IP_PROTOCOL_UDP) { udp_header_t *udp = ip4_next_header (ip4); checksum = &udp->checksum; /* * UDP checksum is optional over IPv4 but mandatory for IPv6 We * do not check udp->length sanity but use our safe computed * value instead */ if (PREDICT_FALSE (!*checksum)) { u16 udp_len = clib_host_to_net_u16 (ip4->length) - sizeof (*ip4); csum = ip_incremental_checksum (0, udp, udp_len); csum = ip_csum_with_carry (csum, clib_host_to_net_u16 (udp_len)); csum = ip_csum_with_carry (csum, clib_host_to_net_u16 (IP_PROTOCOL_UDP)); csum = ip_csum_with_carry (csum, *((u64 *) (&ip4->src_address))); *checksum = ~ip_csum_fold (csum); } } else { tcp_header_t *tcp = ip4_next_header (ip4); if (mm->tcp_mss > 0) { csum = tcp->checksum; map_mss_clamping (tcp, &csum, mm->tcp_mss); tcp->checksum = ip_csum_fold (csum); } checksum = &tcp->checksum; } old_src.as_u32 = ip4->src_address.as_u32; old_dst.as_u32 = ip4->dst_address.as_u32; /* Deal with fragmented packets */ if (PREDICT_FALSE (ip4->flags_and_fragment_offset & clib_host_to_net_u16 (IP4_HEADER_FLAG_MORE_FRAGMENTS))) { ip6 = (ip6_header_t *) u8_ptr_add (ip4, sizeof (*ip4) - sizeof (*ip6) - sizeof (*frag)); frag = (ip6_frag_hdr_t *) u8_ptr_add (ip4, sizeof (*ip4) - sizeof (*frag)); frag_id = frag_id_4to6 (ip4->fragment_id); vlib_buffer_advance (p, sizeof (*ip4) - sizeof (*ip6) - sizeof (*frag)); } else { ip6 = (ip6_header_t *) (((u8 *) ip4) + sizeof (*ip4) - sizeof (*ip6)); vlib_buffer_advance (p, sizeof (*ip4) - sizeof (*ip6)); frag = NULL; } ip6->ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 ((6 << 28) + (ip4->tos << 20)); ip6->payload_length = u16_net_add (ip4->length, -sizeof (*ip4)); ip6->hop_limit = ip4->ttl; ip6->protocol = ip4->protocol; if (PREDICT_FALSE (frag != NULL)) { frag->next_hdr = ip6->protocol; frag->identification = frag_id; frag->rsv = 0; frag->fragment_offset_and_more = ip6_frag_hdr_offset_and_more (0, 1); ip6->protocol = IP_PROTOCOL_IPV6_FRAGMENTATION; ip6->payload_length = u16_net_add (ip6->payload_length, sizeof (*frag)); } ip6->dst_address.as_u64[0] = pheader->daddr.as_u64[0]; ip6->dst_address.as_u64[1] = pheader->daddr.as_u64[1]; ip6->src_address.as_u64[0] = pheader->saddr.as_u64[0]; ip6->src_address.as_u64[1] = pheader->saddr.as_u64[1]; csum = ip_csum_sub_even (*checksum, old_src.as_u32); csum = ip_csum_sub_even (csum, old_dst.as_u32); csum = ip_csum_add_even (csum, ip6->src_address.as_u64[0]); csum = ip_csum_add_even (csum, ip6->src_address.as_u64[1]); csum = ip_csum_add_even (csum, ip6->dst_address.as_u64[0]); csum = ip_csum_add_even (csum, ip6->dst_address.as_u64[1]); *checksum = ip_csum_fold (csum); return 0; } static uword ip4_map_t_tcp_udp (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; from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; next_index = node->cached_next_index; vlib_node_runtime_t *error_node = vlib_node_get_runtime (vm, ip4_map_t_tcp_udp_node.index); 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; vlib_buffer_t *p0; ip4_mapt_pseudo_header_t *pheader0; ip4_mapt_tcp_udp_next_t next0; pi0 = to_next[0] = from[0]; from += 1; n_left_from -= 1; to_next += 1; n_left_to_next -= 1; next0 = IP4_MAPT_TCP_UDP_NEXT_IP6_LOOKUP; p0 = vlib_get_buffer (vm, pi0); //Accessing pseudo header pheader0 = vlib_buffer_get_current (p0); vlib_buffer_advance (p0, sizeof (*pheader0)); if (map_ip4_to_ip6_tcp_udp (p0, pheader0)) { p0->error = error_node->errors[MAP_ERROR_UNKNOWN]; next0 = IP4_MAPT_TCP_UDP_NEXT_DROP; } else { if (vnet_buffer (p0)->map_t.mtu < p0->current_length) { //Send to fragmentation node if necessary vnet_buffer (p0)->ip_frag.mtu = vnet_buffer (p0)->map_t.mtu; vnet_buffer (p0)->ip_frag.next_index = IP_FRAG_NEXT_IP6_LOOKUP; next0 = IP4_MAPT_TCP_UDP_NEXT_IP6_FRAG; } } 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; } static_always_inline void ip4_map_t_classify (vlib_buffer_t * p0, map_domain_t * d0, ip4_header_t * ip40, u16 ip4_len0, i32 * dst_port0, u8 * error0, ip4_mapt_next_t * next0, u16 l4_dst_port) { if (PREDICT_FALSE (ip4_get_fragment_offset (ip40))) { *next0 = IP4_MAPT_NEXT_MAPT_FRAGMENTED; if (d0->ea_bits_len == 0 && d0->rules) { *dst_port0 = 0; } else { *dst_port0 = l4_dst_port; *error0 = (*dst_port0 == -1) ? MAP_ERROR_FRAGMENT_MEMORY : *error0; } } else if (PREDICT_TRUE (ip40->protocol == IP_PROTOCOL_TCP)) { vnet_buffer (p0)->map_t.checksum_offset = 36; *next0 = IP4_MAPT_NEXT_MAPT_TCP_UDP; *error0 = ip4_len0 < 40 ? MAP_ERROR_MALFORMED : *error0; *dst_port0 = l4_dst_port; } else if (PREDICT_TRUE (ip40->protocol == IP_PROTOCOL_UDP)) { vnet_buffer (p0)->map_t.checksum_offset = 26; *next0 = IP4_MAPT_NEXT_MAPT_TCP_UDP; *error0 = ip4_len0 < 28 ? MAP_ERROR_MALFORMED : *error0; *dst_port0 = l4_dst_port; } else if (ip40->protocol == IP_PROTOCOL_ICMP) { *next0 = IP4_MAPT_NEXT_MAPT_ICMP; if (d0->ea_bits_len == 0 && d0->rules) *dst_port0 = 0; else if (((icmp46_header_t *) u8_ptr_add (ip40, sizeof (*ip40)))->code == ICMP4_echo_reply || ((icmp46_header_t *) u8_ptr_add (ip40, sizeof (*ip40)))->code == ICMP4_echo_request) *dst_port0 = l4_dst_port; } else { *error0 = MAP_ERROR_BAD_PROTOCOL; } } static uword ip4_map_t (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_map_t_node.index); from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; next_index = node->cached_next_index; vlib_combined_counter_main_t *cm = map_main.domain_counters; u32 thread_index = vm->thread_index; 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; vlib_buffer_t *p0; ip4_header_t *ip40; map_domain_t *d0; ip4_mapt_next_t next0 = 0; u16 ip4_len0; u8 error0; i32 dst_port0; ip4_mapt_pseudo_header_t *pheader0; pi0 = to_next[0] = from[0]; from += 1; n_left_from -= 1; to_next += 1; n_left_to_next -= 1; error0 = MAP_ERROR_NONE; p0 = vlib_get_buffer (vm, pi0); u16 l4_dst_port = vnet_buffer (p0)->ip.reass.l4_dst_port; ip40 = vlib_buffer_get_current (p0); ip4_len0 = clib_host_to_net_u16 (ip40->length); if (PREDICT_FALSE (p0->current_length < ip4_len0 || ip40->ip_version_and_header_length != 0x45)) { error0 = MAP_ERROR_UNKNOWN; } d0 = ip4_map_get_domain (&ip40->dst_address, &vnet_buffer (p0)->map_t.map_domain_index, &error0); if (!d0) { /* Guess it wasn't for us */ vnet_feature_next (&next0, p0); goto exit; } vnet_buffer (p0)->map_t.mtu = d0->mtu ? d0->mtu : ~0; dst_port0 = -1; ip4_map_t_classify (p0, d0, ip40, ip4_len0, &dst_port0, &error0, &next0, l4_dst_port); /* Verify that port is not among the well-known ports */ if ((d0->psid_length > 0 && d0->psid_offset > 0) && (clib_net_to_host_u16 (dst_port0) < (0x1 << (16 - d0->psid_offset)))) { error0 = MAP_ERROR_SEC_CHECK; } //Add MAP-T pseudo header in front of the packet vlib_buffer_advance (p0, -sizeof (*pheader0)); pheader0 = vlib_buffer_get_current (p0); //Save addresses within the packet ip4_map_t_embedded_address (d0, &pheader0->saddr, &ip40->src_address); pheader0->daddr.as_u64[0] = map_get_pfx_net (d0, ip40->dst_address.as_u32, (u16) dst_port0); pheader0->daddr.as_u64[1] = map_get_sfx_net (d0, ip40->dst_address.as_u32, (u16) dst_port0); bool df0 = ip40->flags_and_fragment_offset & clib_host_to_net_u16 (IP4_HEADER_FLAG_DONT_FRAGMENT); if (PREDICT_TRUE (ip4_is_first_fragment (ip40) && df0)) { p0->error = error_node->errors[MAP_ERROR_FRAGMENT_DROPPED]; next0 = IP4_MAPT_NEXT_MAPT_FRAGMENTED; goto exit; } if (PREDICT_TRUE (error0 == MAP_ERROR_NONE && next0 != IP4_MAPT_NEXT_MAPT_ICMP)) { vlib_increment_combined_counter (cm + MAP_DOMAIN_COUNTER_TX, thread_index, vnet_buffer (p0)-> map_t.map_domain_index, 1, clib_net_to_host_u16 (ip40->length)); } next0 = (error0 != MAP_ERROR_NONE) ? IP4_MAPT_NEXT_DROP : next0; p0->error = error_node->errors[error0]; if (PREDICT_FALSE (p0->flags & VLIB_BUFFER_IS_TRACED)) { map_add_trace (vm, node, p0, d0 - map_main.domains, dst_port0); } exit: 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; } static char *map_t_error_strings[] = { #define _(sym,string) string, foreach_map_error #undef _ }; /* *INDENT-OFF* */ VNET_FEATURE_INIT (ip4_map_t_feature, static) = { .arc_name = "ip4-unicast", .node_name = "ip4-map-t", .runs_before = VNET_FEATURES ("ip4-flow-classify"), .runs_after = VNET_FEATURES ("ip4-sv-reassembly-feature"), }; VLIB_REGISTER_NODE(ip4_map_t_fragmented_node) = { .function = ip4_map_t_fragmented, .name = "ip4-map-t-fragmented", .vector_size = sizeof(u32), .format_trace = format_map_trace, .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = MAP_N_ERROR, .error_strings = map_t_error_strings, .n_next_nodes = IP4_MAPT_FRAGMENTED_N_NEXT, .next_nodes = { [IP4_MAPT_FRAGMENTED_NEXT_IP6_LOOKUP] = "ip6-lookup", [IP4_MAPT_FRAGMENTED_NEXT_IP6_FRAG] = IP6_FRAG_NODE_NAME, [IP4_MAPT_FRAGMENTED_NEXT_DROP] = "error-drop", }, }; /* *INDENT-ON* */ /* *INDENT-OFF* */ VLIB_REGISTER_NODE(ip4_map_t_icmp_node) = { .function = ip4_map_t_icmp, .name = "ip4-map-t-icmp", .vector_size = sizeof(u32), .format_trace = format_map_trace, .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = MAP_N_ERROR, .error_strings = map_t_error_strings, .n_next_nodes = IP4_MAPT_ICMP_N_NEXT, .next_nodes = { [IP4_MAPT_ICMP_NEXT_IP6_LOOKUP] = "ip6-lookup", [IP4_MAPT_ICMP_NEXT_IP6_FRAG] = IP6_FRAG_NODE_NAME, [IP4_MAPT_ICMP_NEXT_DROP] = "error-drop", }, }; /* *INDENT-ON* */ /* *INDENT-OFF* */ VLIB_REGISTER_NODE(ip4_map_t_tcp_udp_node) = { .function = ip4_map_t_tcp_udp, .name = "ip4-map-t-tcp-udp", .vector_size = sizeof(u32), .format_trace = format_map_trace, .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = MAP_N_ERROR, .error_strings = map_t_error_strings, .n_next_nodes = IP4_MAPT_TCP_UDP_N_NEXT, .next_nodes = { [IP4_MAPT_TCP_UDP_NEXT_IP6_LOOKUP] = "ip6-lookup", [IP4_MAPT_TCP_UDP_NEXT_IP6_FRAG] = IP6_FRAG_NODE_NAME, [IP4_MAPT_TCP_UDP_NEXT_DROP] = "error-drop", }, }; /* *INDENT-ON* */ /* *INDENT-OFF* */ VLIB_REGISTER_NODE(ip4_map_t_node) = { .function = ip4_map_t, .name = "ip4-map-t", .vector_size = sizeof(u32), .format_trace = format_map_trace, .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = MAP_N_ERROR, .error_strings = map_t_error_strings, .n_next_nodes = IP4_MAPT_N_NEXT, .next_nodes = { [IP4_MAPT_NEXT_MAPT_TCP_UDP] = "ip4-map-t-tcp-udp", [IP4_MAPT_NEXT_MAPT_ICMP] = "ip4-map-t-icmp", [IP4_MAPT_NEXT_MAPT_FRAGMENTED] = "ip4-map-t-fragmented", [IP4_MAPT_NEXT_DROP] = "error-drop", }, }; /* *INDENT-ON* */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */