2 * Copyright (c) 2015 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 * Defines used for testing various optimisation schemes
18 #define MAP_ENCAP_DUAL 0
21 #include "../ip/ip_frag.h"
23 vlib_node_registration_t ip4_map_reass_node;
27 IP4_MAP_NEXT_IP6_LOOKUP,
28 #ifdef MAP_SKIP_IP6_LOOKUP
29 IP4_MAP_NEXT_IP6_REWRITE,
31 IP4_MAP_NEXT_IP4_FRAGMENT,
32 IP4_MAP_NEXT_IP6_FRAGMENT,
34 IP4_MAP_NEXT_ICMP_ERROR,
39 enum ip4_map_reass_next_t
41 IP4_MAP_REASS_NEXT_IP6_LOOKUP,
42 IP4_MAP_REASS_NEXT_IP4_FRAGMENT,
43 IP4_MAP_REASS_NEXT_DROP,
52 } map_ip4_map_reass_trace_t;
55 format_ip4_map_reass_trace (u8 * s, va_list * args)
57 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
58 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
59 map_ip4_map_reass_trace_t *t = va_arg (*args, map_ip4_map_reass_trace_t *);
60 return format (s, "MAP domain index: %d L4 port: %u Status: %s",
61 t->map_domain_index, t->port,
62 t->cached ? "cached" : "forwarded");
69 ip4_map_get_port (ip4_header_t * ip, map_dir_e dir)
71 /* Find port information */
72 if (PREDICT_TRUE ((ip->protocol == IP_PROTOCOL_TCP) ||
73 (ip->protocol == IP_PROTOCOL_UDP)))
75 udp_header_t *udp = (void *) (ip + 1);
76 return (dir == MAP_SENDER ? udp->src_port : udp->dst_port);
78 else if (ip->protocol == IP_PROTOCOL_ICMP)
81 * 1) ICMP Echo request or Echo reply
82 * 2) ICMP Error with inner packet being UDP or TCP
83 * 3) ICMP Error with inner packet being ICMP Echo request or Echo reply
85 icmp46_header_t *icmp = (void *) (ip + 1);
86 if (icmp->type == ICMP4_echo_request || icmp->type == ICMP4_echo_reply)
88 return *((u16 *) (icmp + 1));
90 else if (clib_net_to_host_u16 (ip->length) >= 56)
91 { // IP + ICMP + IP + L4 header
92 ip4_header_t *icmp_ip = (ip4_header_t *) (icmp + 2);
93 if (PREDICT_TRUE ((icmp_ip->protocol == IP_PROTOCOL_TCP) ||
94 (icmp_ip->protocol == IP_PROTOCOL_UDP)))
96 udp_header_t *udp = (void *) (icmp_ip + 1);
97 return (dir == MAP_SENDER ? udp->dst_port : udp->src_port);
99 else if (icmp_ip->protocol == IP_PROTOCOL_ICMP)
101 icmp46_header_t *inner_icmp = (void *) (icmp_ip + 1);
102 if (inner_icmp->type == ICMP4_echo_request
103 || inner_icmp->type == ICMP4_echo_reply)
104 return (*((u16 *) (inner_icmp + 1)));
111 static_always_inline u16
112 ip4_map_port_and_security_check (map_domain_t * d, ip4_header_t * ip,
113 u32 * next, u8 * error)
117 if (d->psid_length > 0)
119 if (ip4_get_fragment_offset (ip) == 0)
122 ((ip->ip_version_and_header_length != 0x45)
123 || clib_host_to_net_u16 (ip->length) < 28))
127 port = ip4_map_get_port (ip, MAP_RECEIVER);
130 /* Verify that port is not among the well-known ports */
131 if ((d->psid_offset > 0)
132 && (clib_net_to_host_u16 (port) <
133 (0x1 << (16 - d->psid_offset))))
135 *error = MAP_ERROR_ENCAP_SEC_CHECK;
139 if (ip4_get_fragment_more (ip))
140 *next = IP4_MAP_NEXT_REASS;
146 *error = MAP_ERROR_BAD_PROTOCOL;
151 *next = IP4_MAP_NEXT_REASS;
160 static_always_inline u32
161 ip4_map_vtcfl (ip4_header_t * ip4, vlib_buffer_t * p)
163 map_main_t *mm = &map_main;
164 u8 tc = mm->tc_copy ? ip4->tos : mm->tc;
165 u32 vtcfl = 0x6 << 28;
167 vtcfl |= vnet_buffer (p)->ip.flow_hash & 0x000fffff;
169 return (clib_host_to_net_u32 (vtcfl));
172 static_always_inline bool
173 ip4_map_ip6_lookup_bypass (vlib_buffer_t * p0, ip4_header_t * ip)
175 #ifdef MAP_SKIP_IP6_LOOKUP
176 if (FIB_NODE_INDEX_INVALID != pre_resolved[FIB_PROTOCOL_IP6].fei)
178 vnet_buffer (p0)->ip.adj_index[VLIB_TX] =
179 pre_resolved[FIB_PROTOCOL_IP6].dpo.dpoi_index;
190 ip4_map_decrement_ttl (ip4_header_t * ip, u8 * error)
194 /* Input node should have reject packets with ttl 0. */
195 ASSERT (ip->ttl > 0);
197 u32 checksum = ip->checksum + clib_host_to_net_u16 (0x0100);
198 checksum += checksum >= 0xffff;
199 ip->checksum = checksum;
202 *error = ttl <= 0 ? IP4_ERROR_TIME_EXPIRED : *error;
204 /* Verify checksum. */
205 ASSERT (ip->checksum == ip4_header_checksum (ip));
209 ip4_map_fragment (vlib_buffer_t * b, u16 mtu, bool df, u8 * error)
211 map_main_t *mm = &map_main;
215 ip_frag_set_vnet_buffer (b, sizeof (ip6_header_t), mtu,
216 IP4_FRAG_NEXT_IP6_LOOKUP,
217 IP_FRAG_FLAG_IP6_HEADER);
218 return (IP4_MAP_NEXT_IP4_FRAGMENT);
222 if (df && !mm->frag_ignore_df)
224 icmp4_error_set_vnet_buffer (b, ICMP4_destination_unreachable,
225 ICMP4_destination_unreachable_fragmentation_needed_and_dont_fragment_set,
227 vlib_buffer_advance (b, sizeof (ip6_header_t));
228 *error = MAP_ERROR_DF_SET;
229 return (IP4_MAP_NEXT_ICMP_ERROR);
231 ip_frag_set_vnet_buffer (b, 0, mtu, IP6_FRAG_NEXT_IP6_LOOKUP,
232 IP_FRAG_FLAG_IP6_HEADER);
233 return (IP4_MAP_NEXT_IP6_FRAGMENT);
241 ip4_map (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
243 u32 n_left_from, *from, next_index, *to_next, n_left_to_next;
244 vlib_node_runtime_t *error_node =
245 vlib_node_get_runtime (vm, ip4_map_node.index);
246 from = vlib_frame_vector_args (frame);
247 n_left_from = frame->n_vectors;
248 next_index = node->cached_next_index;
249 map_main_t *mm = &map_main;
250 vlib_combined_counter_main_t *cm = mm->domain_counters;
251 u32 thread_index = vlib_get_thread_index ();
253 while (n_left_from > 0)
255 vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
258 while (n_left_from >= 4 && n_left_to_next >= 2)
261 vlib_buffer_t *p0, *p1;
262 map_domain_t *d0, *d1;
263 u8 error0 = MAP_ERROR_NONE, error1 = MAP_ERROR_NONE;
264 ip4_header_t *ip40, *ip41;
265 u16 port0 = 0, port1 = 0;
266 ip6_header_t *ip6h0, *ip6h1;
267 u32 map_domain_index0 = ~0, map_domain_index1 = ~0;
268 u32 next0 = IP4_MAP_NEXT_IP6_LOOKUP, next1 =
269 IP4_MAP_NEXT_IP6_LOOKUP;
271 /* Prefetch next iteration. */
273 vlib_buffer_t *p2, *p3;
275 p2 = vlib_get_buffer (vm, from[2]);
276 p3 = vlib_get_buffer (vm, from[3]);
278 vlib_prefetch_buffer_header (p2, STORE);
279 vlib_prefetch_buffer_header (p3, STORE);
280 /* IPv4 + 8 = 28. possibly plus -40 */
281 CLIB_PREFETCH (p2->data - 40, 68, STORE);
282 CLIB_PREFETCH (p3->data - 40, 68, STORE);
285 pi0 = to_next[0] = from[0];
286 pi1 = to_next[1] = from[1];
292 p0 = vlib_get_buffer (vm, pi0);
293 p1 = vlib_get_buffer (vm, pi1);
294 ip40 = vlib_buffer_get_current (p0);
295 ip41 = vlib_buffer_get_current (p1);
296 map_domain_index0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX];
297 d0 = ip4_map_get_domain (map_domain_index0);
298 map_domain_index1 = vnet_buffer (p1)->ip.adj_index[VLIB_TX];
299 d1 = ip4_map_get_domain (map_domain_index1);
304 * Shared IPv4 address
306 port0 = ip4_map_port_and_security_check (d0, ip40, &next0, &error0);
307 port1 = ip4_map_port_and_security_check (d1, ip41, &next1, &error1);
309 /* Decrement IPv4 TTL */
310 ip4_map_decrement_ttl (ip40, &error0);
311 ip4_map_decrement_ttl (ip41, &error1);
313 ip40->flags_and_fragment_offset &
314 clib_host_to_net_u16 (IP4_HEADER_FLAG_DONT_FRAGMENT);
316 ip41->flags_and_fragment_offset &
317 clib_host_to_net_u16 (IP4_HEADER_FLAG_DONT_FRAGMENT);
320 u32 da40 = clib_net_to_host_u32 (ip40->dst_address.as_u32);
321 u32 da41 = clib_net_to_host_u32 (ip41->dst_address.as_u32);
322 u16 dp40 = clib_net_to_host_u16 (port0);
323 u16 dp41 = clib_net_to_host_u16 (port1);
324 u64 dal60 = map_get_pfx (d0, da40, dp40);
325 u64 dal61 = map_get_pfx (d1, da41, dp41);
326 u64 dar60 = map_get_sfx (d0, da40, dp40);
327 u64 dar61 = map_get_sfx (d1, da41, dp41);
328 if (dal60 == 0 && dar60 == 0 && error0 == MAP_ERROR_NONE
329 && next0 != IP4_MAP_NEXT_REASS)
330 error0 = MAP_ERROR_NO_BINDING;
331 if (dal61 == 0 && dar61 == 0 && error1 == MAP_ERROR_NONE
332 && next1 != IP4_MAP_NEXT_REASS)
333 error1 = MAP_ERROR_NO_BINDING;
335 /* construct ipv6 header */
336 vlib_buffer_advance (p0, -sizeof (ip6_header_t));
337 vlib_buffer_advance (p1, -sizeof (ip6_header_t));
338 ip6h0 = vlib_buffer_get_current (p0);
339 ip6h1 = vlib_buffer_get_current (p1);
340 vnet_buffer (p0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
341 vnet_buffer (p1)->sw_if_index[VLIB_TX] = (u32) ~ 0;
343 ip6h0->ip_version_traffic_class_and_flow_label =
344 ip4_map_vtcfl (ip40, p0);
345 ip6h1->ip_version_traffic_class_and_flow_label =
346 ip4_map_vtcfl (ip41, p1);
347 ip6h0->payload_length = ip40->length;
348 ip6h1->payload_length = ip41->length;
349 ip6h0->protocol = IP_PROTOCOL_IP_IN_IP;
350 ip6h1->protocol = IP_PROTOCOL_IP_IN_IP;
351 ip6h0->hop_limit = 0x40;
352 ip6h1->hop_limit = 0x40;
353 ip6h0->src_address = d0->ip6_src;
354 ip6h1->src_address = d1->ip6_src;
355 ip6h0->dst_address.as_u64[0] = clib_host_to_net_u64 (dal60);
356 ip6h0->dst_address.as_u64[1] = clib_host_to_net_u64 (dar60);
357 ip6h1->dst_address.as_u64[0] = clib_host_to_net_u64 (dal61);
358 ip6h1->dst_address.as_u64[1] = clib_host_to_net_u64 (dar61);
361 * Determine next node. Can be one of:
362 * ip6-lookup, ip6-rewrite, ip4-fragment, ip4-virtreass, error-drop
364 if (PREDICT_TRUE (error0 == MAP_ERROR_NONE))
368 && (clib_net_to_host_u16 (ip6h0->payload_length) +
369 sizeof (*ip6h0) > d0->mtu)))
371 next0 = ip4_map_fragment (p0, d0->mtu, df0, &error0);
376 ip4_map_ip6_lookup_bypass (p0,
378 IP4_MAP_NEXT_IP6_REWRITE : next0;
379 vlib_increment_combined_counter (cm + MAP_DOMAIN_COUNTER_TX,
381 map_domain_index0, 1,
383 (ip6h0->payload_length) +
389 next0 = IP4_MAP_NEXT_DROP;
393 * Determine next node. Can be one of:
394 * ip6-lookup, ip6-rewrite, ip4-fragment, ip4-virtreass, error-drop
396 if (PREDICT_TRUE (error1 == MAP_ERROR_NONE))
400 && (clib_net_to_host_u16 (ip6h1->payload_length) +
401 sizeof (*ip6h1) > d1->mtu)))
403 next1 = ip4_map_fragment (p1, d1->mtu, df1, &error1);
408 ip4_map_ip6_lookup_bypass (p1,
410 IP4_MAP_NEXT_IP6_REWRITE : next1;
411 vlib_increment_combined_counter (cm + MAP_DOMAIN_COUNTER_TX,
413 map_domain_index1, 1,
415 (ip6h1->payload_length) +
421 next1 = IP4_MAP_NEXT_DROP;
424 if (PREDICT_FALSE (p0->flags & VLIB_BUFFER_IS_TRACED))
426 map_trace_t *tr = vlib_add_trace (vm, node, p0, sizeof (*tr));
427 tr->map_domain_index = map_domain_index0;
430 if (PREDICT_FALSE (p1->flags & VLIB_BUFFER_IS_TRACED))
432 map_trace_t *tr = vlib_add_trace (vm, node, p1, sizeof (*tr));
433 tr->map_domain_index = map_domain_index1;
437 p0->error = error_node->errors[error0];
438 p1->error = error_node->errors[error1];
440 vlib_validate_buffer_enqueue_x2 (vm, node, next_index, to_next,
441 n_left_to_next, pi0, pi1, next0,
445 while (n_left_from > 0 && n_left_to_next > 0)
450 u8 error0 = MAP_ERROR_NONE;
454 u32 next0 = IP4_MAP_NEXT_IP6_LOOKUP;
455 u32 map_domain_index0 = ~0;
457 pi0 = to_next[0] = from[0];
463 p0 = vlib_get_buffer (vm, pi0);
464 ip40 = vlib_buffer_get_current (p0);
465 map_domain_index0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX];
466 d0 = ip4_map_get_domain (map_domain_index0);
470 * Shared IPv4 address
472 port0 = ip4_map_port_and_security_check (d0, ip40, &next0, &error0);
474 /* Decrement IPv4 TTL */
475 ip4_map_decrement_ttl (ip40, &error0);
477 ip40->flags_and_fragment_offset &
478 clib_host_to_net_u16 (IP4_HEADER_FLAG_DONT_FRAGMENT);
481 u32 da40 = clib_net_to_host_u32 (ip40->dst_address.as_u32);
482 u16 dp40 = clib_net_to_host_u16 (port0);
483 u64 dal60 = map_get_pfx (d0, da40, dp40);
484 u64 dar60 = map_get_sfx (d0, da40, dp40);
485 if (dal60 == 0 && dar60 == 0 && error0 == MAP_ERROR_NONE
486 && next0 != IP4_MAP_NEXT_REASS)
487 error0 = MAP_ERROR_NO_BINDING;
489 /* construct ipv6 header */
490 vlib_buffer_advance (p0, -(sizeof (ip6_header_t)));
491 ip6h0 = vlib_buffer_get_current (p0);
492 vnet_buffer (p0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
494 ip6h0->ip_version_traffic_class_and_flow_label =
495 ip4_map_vtcfl (ip40, p0);
496 ip6h0->payload_length = ip40->length;
497 ip6h0->protocol = IP_PROTOCOL_IP_IN_IP;
498 ip6h0->hop_limit = 0x40;
499 ip6h0->src_address = d0->ip6_src;
500 ip6h0->dst_address.as_u64[0] = clib_host_to_net_u64 (dal60);
501 ip6h0->dst_address.as_u64[1] = clib_host_to_net_u64 (dar60);
504 * Determine next node. Can be one of:
505 * ip6-lookup, ip6-rewrite, ip4-fragment, ip4-virtreass, error-drop
507 if (PREDICT_TRUE (error0 == MAP_ERROR_NONE))
511 && (clib_net_to_host_u16 (ip6h0->payload_length) +
512 sizeof (*ip6h0) > d0->mtu)))
514 next0 = ip4_map_fragment (p0, d0->mtu, df0, &error0);
519 ip4_map_ip6_lookup_bypass (p0,
521 IP4_MAP_NEXT_IP6_REWRITE : next0;
522 vlib_increment_combined_counter (cm + MAP_DOMAIN_COUNTER_TX,
524 map_domain_index0, 1,
526 (ip6h0->payload_length) +
532 next0 = IP4_MAP_NEXT_DROP;
535 if (PREDICT_FALSE (p0->flags & VLIB_BUFFER_IS_TRACED))
537 map_trace_t *tr = vlib_add_trace (vm, node, p0, sizeof (*tr));
538 tr->map_domain_index = map_domain_index0;
542 p0->error = error_node->errors[error0];
543 vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
544 n_left_to_next, pi0, next0);
546 vlib_put_next_frame (vm, node, next_index, n_left_to_next);
549 return frame->n_vectors;
556 ip4_map_reass (vlib_main_t * vm,
557 vlib_node_runtime_t * node, vlib_frame_t * frame)
559 u32 n_left_from, *from, next_index, *to_next, n_left_to_next;
560 vlib_node_runtime_t *error_node =
561 vlib_node_get_runtime (vm, ip4_map_reass_node.index);
562 from = vlib_frame_vector_args (frame);
563 n_left_from = frame->n_vectors;
564 next_index = node->cached_next_index;
565 map_main_t *mm = &map_main;
566 vlib_combined_counter_main_t *cm = mm->domain_counters;
567 u32 thread_index = vlib_get_thread_index ();
568 u32 *fragments_to_drop = NULL;
569 u32 *fragments_to_loopback = NULL;
571 while (n_left_from > 0)
573 vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
575 while (n_left_from > 0 && n_left_to_next > 0)
580 u8 error0 = MAP_ERROR_NONE;
584 u32 next0 = IP4_MAP_REASS_NEXT_IP6_LOOKUP;
585 u32 map_domain_index0;
588 pi0 = to_next[0] = from[0];
594 p0 = vlib_get_buffer (vm, pi0);
595 ip60 = vlib_buffer_get_current (p0);
596 ip40 = (ip4_header_t *) (ip60 + 1);
597 map_domain_index0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX];
598 d0 = ip4_map_get_domain (map_domain_index0);
600 map_ip4_reass_lock ();
601 map_ip4_reass_t *r = map_ip4_reass_get (ip40->src_address.as_u32,
602 ip40->dst_address.as_u32,
606 if (PREDICT_FALSE (!r))
608 // Could not create a caching entry
609 error0 = MAP_ERROR_FRAGMENT_MEMORY;
611 else if (PREDICT_TRUE (ip4_get_fragment_offset (ip40)))
615 // We know the port already
618 else if (map_ip4_reass_add_fragment (r, pi0))
620 // Not enough space for caching
621 error0 = MAP_ERROR_FRAGMENT_MEMORY;
622 map_ip4_reass_free (r, &fragments_to_drop);
631 ip4_get_port (ip40, MAP_RECEIVER, p0->current_length)) < 0)
633 // Could not find port. We'll free the reassembly.
634 error0 = MAP_ERROR_BAD_PROTOCOL;
636 map_ip4_reass_free (r, &fragments_to_drop);
641 map_ip4_reass_get_fragments (r, &fragments_to_loopback);
644 #ifdef MAP_IP4_REASS_COUNT_BYTES
647 r->forwarded += clib_host_to_net_u16 (ip40->length) - 20;
648 if (!ip4_get_fragment_more (ip40))
650 ip4_get_fragment_offset (ip40) * 8 +
651 clib_host_to_net_u16 (ip40->length) - 20;
652 if (r->forwarded >= r->expected_total)
653 map_ip4_reass_free (r, &fragments_to_drop);
657 map_ip4_reass_unlock ();
659 // NOTE: Most operations have already been performed by ip4_map
660 // All we need is the right destination address
661 ip60->dst_address.as_u64[0] =
662 map_get_pfx_net (d0, ip40->dst_address.as_u32, port0);
663 ip60->dst_address.as_u64[1] =
664 map_get_sfx_net (d0, ip40->dst_address.as_u32, port0);
668 && (clib_net_to_host_u16 (ip60->payload_length) +
669 sizeof (*ip60) > d0->mtu)))
671 vnet_buffer (p0)->ip_frag.header_offset = sizeof (*ip60);
672 vnet_buffer (p0)->ip_frag.next_index = IP4_FRAG_NEXT_IP6_LOOKUP;
673 vnet_buffer (p0)->ip_frag.mtu = d0->mtu;
674 vnet_buffer (p0)->ip_frag.flags = IP_FRAG_FLAG_IP6_HEADER;
675 next0 = IP4_MAP_REASS_NEXT_IP4_FRAGMENT;
678 if (PREDICT_FALSE (p0->flags & VLIB_BUFFER_IS_TRACED))
680 map_ip4_map_reass_trace_t *tr =
681 vlib_add_trace (vm, node, p0, sizeof (*tr));
682 tr->map_domain_index = map_domain_index0;
695 if (error0 == MAP_ERROR_NONE)
696 vlib_increment_combined_counter (cm + MAP_DOMAIN_COUNTER_TX,
698 map_domain_index0, 1,
700 (ip60->payload_length) + 40);
702 (error0 == MAP_ERROR_NONE) ? next0 : IP4_MAP_REASS_NEXT_DROP;
703 p0->error = error_node->errors[error0];
704 vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
705 n_left_to_next, pi0, next0);
708 //Loopback when we reach the end of the inpu vector
709 if (n_left_from == 0 && vec_len (fragments_to_loopback))
711 from = vlib_frame_vector_args (frame);
712 u32 len = vec_len (fragments_to_loopback);
713 if (len <= VLIB_FRAME_SIZE)
715 clib_memcpy (from, fragments_to_loopback,
718 vec_reset_length (fragments_to_loopback);
723 fragments_to_loopback + (len -
725 sizeof (u32) * VLIB_FRAME_SIZE);
726 n_left_from = VLIB_FRAME_SIZE;
727 _vec_len (fragments_to_loopback) = len - VLIB_FRAME_SIZE;
731 vlib_put_next_frame (vm, node, next_index, n_left_to_next);
734 map_send_all_to_node (vm, fragments_to_drop, node,
735 &error_node->errors[MAP_ERROR_FRAGMENT_DROPPED],
736 IP4_MAP_REASS_NEXT_DROP);
738 vec_free (fragments_to_drop);
739 vec_free (fragments_to_loopback);
740 return frame->n_vectors;
743 static char *map_error_strings[] = {
744 #define _(sym,string) string,
750 VLIB_REGISTER_NODE(ip4_map_node) = {
753 .vector_size = sizeof(u32),
754 .format_trace = format_map_trace,
755 .type = VLIB_NODE_TYPE_INTERNAL,
757 .n_errors = MAP_N_ERROR,
758 .error_strings = map_error_strings,
760 .n_next_nodes = IP4_MAP_N_NEXT,
762 [IP4_MAP_NEXT_IP6_LOOKUP] = "ip6-lookup",
763 #ifdef MAP_SKIP_IP6_LOOKUP
764 [IP4_MAP_NEXT_IP6_REWRITE] = "ip6-load-balance",
766 [IP4_MAP_NEXT_IP4_FRAGMENT] = "ip4-frag",
767 [IP4_MAP_NEXT_IP6_FRAGMENT] = "ip6-frag",
768 [IP4_MAP_NEXT_REASS] = "ip4-map-reass",
769 [IP4_MAP_NEXT_ICMP_ERROR] = "ip4-icmp-error",
770 [IP4_MAP_NEXT_DROP] = "error-drop",
776 VLIB_REGISTER_NODE(ip4_map_reass_node) = {
777 .function = ip4_map_reass,
778 .name = "ip4-map-reass",
779 .vector_size = sizeof(u32),
780 .format_trace = format_ip4_map_reass_trace,
781 .type = VLIB_NODE_TYPE_INTERNAL,
783 .n_errors = MAP_N_ERROR,
784 .error_strings = map_error_strings,
786 .n_next_nodes = IP4_MAP_REASS_N_NEXT,
788 [IP4_MAP_REASS_NEXT_IP6_LOOKUP] = "ip6-lookup",
789 [IP4_MAP_REASS_NEXT_IP4_FRAGMENT] = "ip4-frag",
790 [IP4_MAP_REASS_NEXT_DROP] = "error-drop",
796 * fd.io coding-style-patch-verification: ON
799 * eval: (c-set-style "gnu")