2 * esp_encrypt.c : IPSec ESP encrypt node
4 * Copyright (c) 2015 Cisco and/or its affiliates.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
18 #include <vnet/vnet.h>
19 #include <vnet/api_errno.h>
20 #include <vnet/ip/ip.h>
21 #include <vnet/udp/udp.h>
23 #include <vnet/crypto/crypto.h>
25 #include <vnet/ipsec/ipsec.h>
26 #include <vnet/ipsec/esp.h>
28 #define foreach_esp_encrypt_next \
29 _(DROP, "error-drop") \
30 _(IP4_LOOKUP, "ip4-lookup") \
31 _(IP6_LOOKUP, "ip6-lookup") \
32 _(INTERFACE_OUTPUT, "interface-output")
34 #define _(v, s) ESP_ENCRYPT_NEXT_##v,
37 foreach_esp_encrypt_next
42 #define foreach_esp_encrypt_error \
43 _(RX_PKTS, "ESP pkts received") \
44 _(SEQ_CYCLED, "sequence number cycled (packet dropped)") \
45 _(CRYPTO_ENGINE_ERROR, "crypto engine error (packet dropped)") \
46 _(CHAINED_BUFFER, "chained buffers (packet dropped)") \
47 _(NO_TRAILER_SPACE, "no trailer space (packet dropped)")
51 #define _(sym,str) ESP_ENCRYPT_ERROR_##sym,
52 foreach_esp_encrypt_error
55 } esp_encrypt_error_t;
57 static char *esp_encrypt_error_strings[] = {
58 #define _(sym,string) string,
59 foreach_esp_encrypt_error
70 ipsec_crypto_alg_t crypto_alg;
71 ipsec_integ_alg_t integ_alg;
72 } esp_encrypt_trace_t;
74 /* packet trace format function */
76 format_esp_encrypt_trace (u8 * s, va_list * args)
78 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
79 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
80 esp_encrypt_trace_t *t = va_arg (*args, esp_encrypt_trace_t *);
84 "esp: sa-index %d spi %u (0x%08x) seq %u sa-seq-hi %u crypto %U integrity %U%s",
85 t->sa_index, t->spi, t->spi, t->seq, t->sa_seq_hi,
86 format_ipsec_crypto_alg,
87 t->crypto_alg, format_ipsec_integ_alg, t->integ_alg,
88 t->udp_encap ? " udp-encap-enabled" : "");
92 /* pad packet in input buffer */
93 static_always_inline u8 *
94 esp_add_footer_and_icv (vlib_buffer_t * b, u8 block_size, u8 icv_sz,
95 u16 * next, vlib_node_runtime_t * node,
98 static const u8 pad_data[ESP_MAX_BLOCK_SIZE] = {
99 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
100 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x00, 0x00,
103 u16 min_length = b->current_length + sizeof (esp_footer_t);
104 u16 new_length = round_pow2 (min_length, block_size);
105 u8 pad_bytes = new_length - min_length;
106 esp_footer_t *f = (esp_footer_t *) (vlib_buffer_get_current (b) +
107 new_length - sizeof (esp_footer_t));
109 if (b->current_data + new_length + icv_sz > buffer_data_size)
111 b->error = node->errors[ESP_ENCRYPT_ERROR_NO_TRAILER_SPACE];
112 next[0] = ESP_ENCRYPT_NEXT_DROP;
118 ASSERT (pad_bytes <= ESP_MAX_BLOCK_SIZE);
119 pad_bytes = clib_min (ESP_MAX_BLOCK_SIZE, pad_bytes);
120 clib_memcpy_fast ((u8 *) f - pad_bytes, pad_data, pad_bytes);
123 f->pad_length = pad_bytes;
124 b->current_length = new_length + icv_sz;
125 return &f->next_header;
128 static_always_inline void
129 esp_update_ip4_hdr (ip4_header_t * ip4, u16 len, int is_transport, int is_udp)
134 len = clib_net_to_host_u16 (len);
135 old_len = ip4->length;
139 u8 prot = is_udp ? IP_PROTOCOL_UDP : IP_PROTOCOL_IPSEC_ESP;
141 sum = ip_csum_update (ip4->checksum, ip4->protocol,
142 prot, ip4_header_t, protocol);
143 ip4->protocol = prot;
145 sum = ip_csum_update (sum, old_len, len, ip4_header_t, length);
148 sum = ip_csum_update (ip4->checksum, old_len, len, ip4_header_t, length);
151 ip4->checksum = ip_csum_fold (sum);
154 static_always_inline void
155 esp_fill_udp_hdr (ipsec_sa_t * sa, udp_header_t * udp, u16 len)
157 clib_memcpy_fast (udp, &sa->udp_hdr, sizeof (udp_header_t));
158 udp->length = clib_net_to_host_u16 (len);
161 static_always_inline u8
162 ext_hdr_is_pre_esp (u8 nexthdr)
164 #ifdef CLIB_HAVE_VEC128
165 static const u8x16 ext_hdr_types = {
166 IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS,
167 IP_PROTOCOL_IPV6_ROUTE,
168 IP_PROTOCOL_IPV6_FRAGMENTATION,
171 return !u8x16_is_all_zero (ext_hdr_types == u8x16_splat (nexthdr));
173 return ((nexthdr ^ IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS) |
174 (nexthdr ^ IP_PROTOCOL_IPV6_ROUTE) |
175 (nexthdr ^ IP_PROTOCOL_IPV6_FRAGMENTATION) != 0);
179 static_always_inline u8
180 esp_get_ip6_hdr_len (ip6_header_t * ip6)
182 /* this code assumes that HbH, route and frag headers will be before
183 others, if that is not the case, they will end up encrypted */
185 u8 len = sizeof (ip6_header_t);
188 /* if next packet doesn't have ext header */
189 if (ext_hdr_is_pre_esp (ip6->protocol) == 0)
192 p = (void *) (ip6 + 1);
193 len += ip6_ext_header_len (p);
195 while (ext_hdr_is_pre_esp (p->next_hdr))
197 len += ip6_ext_header_len (p);
198 p = ip6_ext_next_header (p);
204 static_always_inline void
205 esp_process_ops (vlib_main_t * vm, vlib_node_runtime_t * node,
206 vnet_crypto_op_t * ops, vlib_buffer_t * b[], u16 * nexts)
208 u32 n_fail, n_ops = vec_len (ops);
209 vnet_crypto_op_t *op = ops;
214 n_fail = n_ops - vnet_crypto_process_ops (vm, op, n_ops);
218 ASSERT (op - ops < n_ops);
220 if (op->status != VNET_CRYPTO_OP_STATUS_COMPLETED)
222 u32 bi = op->user_data;
223 b[bi]->error = node->errors[ESP_ENCRYPT_ERROR_CRYPTO_ENGINE_ERROR];
224 nexts[bi] = ESP_ENCRYPT_NEXT_DROP;
235 } __clib_packed esp_gcm_nonce_t;
237 STATIC_ASSERT_SIZEOF (esp_gcm_nonce_t, 12);
240 esp_encrypt_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
241 vlib_frame_t * frame, int is_ip6, int is_tun)
243 ipsec_main_t *im = &ipsec_main;
244 ipsec_per_thread_data_t *ptd = vec_elt_at_index (im->ptd, vm->thread_index);
245 u32 *from = vlib_frame_vector_args (frame);
246 u32 n_left = frame->n_vectors;
247 vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b = bufs;
248 u16 nexts[VLIB_FRAME_SIZE], *next = nexts;
249 esp_gcm_nonce_t nonces[VLIB_FRAME_SIZE], *nonce = nonces;
250 u32 thread_index = vm->thread_index;
251 u16 buffer_data_size = vlib_buffer_get_default_data_size (vm);
252 u32 current_sa_index = ~0, current_sa_packets = 0;
253 u32 current_sa_bytes = 0, spi = 0;
254 u8 block_sz = 0, iv_sz = 0, icv_sz = 0;
257 vlib_get_buffers (vm, from, b, n_left);
258 vec_reset_length (ptd->crypto_ops);
259 vec_reset_length (ptd->integ_ops);
266 u8 *payload, *next_hdr_ptr;
273 vlib_prefetch_buffer_header (b[2], LOAD);
274 p = vlib_buffer_get_current (b[1]);
275 CLIB_PREFETCH (p, CLIB_CACHE_LINE_BYTES, LOAD);
276 p -= CLIB_CACHE_LINE_BYTES;
277 CLIB_PREFETCH (p, CLIB_CACHE_LINE_BYTES, LOAD);
282 /* we are on a ipsec tunnel's feature arc */
284 sa_index0 = *(u32 *) vnet_feature_next_with_data (&next0, b[0],
290 sa_index0 = vnet_buffer (b[0])->ipsec.sad_index;
292 if (sa_index0 != current_sa_index)
294 if (current_sa_packets)
295 vlib_increment_combined_counter (&ipsec_sa_counters, thread_index,
299 current_sa_packets = current_sa_bytes = 0;
301 sa0 = pool_elt_at_index (im->sad, sa_index0);
302 current_sa_index = sa_index0;
303 spi = clib_net_to_host_u32 (sa0->spi);
304 block_sz = sa0->crypto_block_size;
305 icv_sz = sa0->integ_icv_size;
306 iv_sz = sa0->crypto_iv_size;
309 if (vlib_buffer_chain_linearize (vm, b[0]) != 1)
311 b[0]->error = node->errors[ESP_ENCRYPT_ERROR_CHAINED_BUFFER];
312 next[0] = ESP_ENCRYPT_NEXT_DROP;
316 if (PREDICT_FALSE (esp_seq_advance (sa0)))
318 b[0]->error = node->errors[ESP_ENCRYPT_ERROR_SEQ_CYCLED];
319 next[0] = ESP_ENCRYPT_NEXT_DROP;
326 if (ipsec_sa_is_set_IS_TUNNEL (sa0))
328 payload = vlib_buffer_get_current (b[0]);
329 next_hdr_ptr = esp_add_footer_and_icv (b[0], block_sz, icv_sz,
334 payload_len = b[0]->current_length;
337 hdr_len += sizeof (*esp);
338 esp = (esp_header_t *) (payload - hdr_len);
340 /* optional UDP header */
341 if (ipsec_sa_is_set_UDP_ENCAP (sa0))
343 hdr_len += sizeof (udp_header_t);
344 esp_fill_udp_hdr (sa0, (udp_header_t *) (payload - hdr_len),
345 payload_len + hdr_len);
349 if (ipsec_sa_is_set_IS_TUNNEL_V6 (sa0))
352 u16 len = sizeof (ip6_header_t);
354 ip6 = (ip6_header_t *) (payload - hdr_len);
355 clib_memcpy_fast (ip6, &sa0->ip6_hdr, len);
356 *next_hdr_ptr = (is_ip6 ?
357 IP_PROTOCOL_IPV6 : IP_PROTOCOL_IP_IN_IP);
358 len = payload_len + hdr_len - len;
359 ip6->payload_length = clib_net_to_host_u16 (len);
364 u16 len = sizeof (ip4_header_t);
366 ip4 = (ip4_header_t *) (payload - hdr_len);
367 clib_memcpy_fast (ip4, &sa0->ip4_hdr, len);
368 *next_hdr_ptr = (is_ip6 ?
369 IP_PROTOCOL_IPV6 : IP_PROTOCOL_IP_IN_IP);
370 len = payload_len + hdr_len;
371 esp_update_ip4_hdr (ip4, len, /* is_transport */ 0, 0);
377 next[0] = dpo->dpoi_next_node;
378 vnet_buffer (b[0])->ip.adj_index[VLIB_TX] = dpo->dpoi_index;
381 else /* transport mode */
383 u8 *l2_hdr, l2_len, *ip_hdr, ip_len;
384 udp_header_t *udp = 0;
385 u8 *old_ip_hdr = vlib_buffer_get_current (b[0]);
388 esp_get_ip6_hdr_len ((ip6_header_t *) old_ip_hdr) :
389 ip4_header_bytes ((ip4_header_t *) old_ip_hdr);
391 vlib_buffer_advance (b[0], ip_len);
392 payload = vlib_buffer_get_current (b[0]);
393 next_hdr_ptr = esp_add_footer_and_icv (b[0], block_sz, icv_sz,
398 payload_len = b[0]->current_length;
401 hdr_len += sizeof (*esp);
402 esp = (esp_header_t *) (payload - hdr_len);
404 /* optional UDP header */
405 if (ipsec_sa_is_set_UDP_ENCAP (sa0))
407 hdr_len += sizeof (udp_header_t);
408 udp = (udp_header_t *) (payload - hdr_len);
413 ip_hdr = payload - hdr_len;
418 l2_len = vnet_buffer (b[0])->ip.save_rewrite_length;
420 l2_hdr = payload - hdr_len;
422 /* copy l2 and ip header */
423 clib_memcpy_le32 (l2_hdr, old_ip_hdr - l2_len, l2_len);
428 clib_memcpy_le64 (ip_hdr, old_ip_hdr, ip_len);
432 ip6_header_t *ip6 = (ip6_header_t *) (ip_hdr);
433 *next_hdr_ptr = ip6->protocol;
434 ip6->protocol = IP_PROTOCOL_IPSEC_ESP;
435 ip6->payload_length =
436 clib_host_to_net_u16 (payload_len + hdr_len - l2_len -
442 ip4_header_t *ip4 = (ip4_header_t *) (ip_hdr);
443 *next_hdr_ptr = ip4->protocol;
444 len = payload_len + hdr_len - l2_len;
447 esp_update_ip4_hdr (ip4, len, /* is_transport */ 1, 1);
448 esp_fill_udp_hdr (sa0, udp, len - ip_len);
451 esp_update_ip4_hdr (ip4, len, /* is_transport */ 1, 0);
455 next[0] = ESP_ENCRYPT_NEXT_INTERFACE_OUTPUT;
459 esp->seq = clib_net_to_host_u32 (sa0->seq);
461 if (sa0->crypto_enc_op_id)
463 vnet_crypto_op_t *op;
464 vec_add2_aligned (ptd->crypto_ops, op, 1, CLIB_CACHE_LINE_BYTES);
465 vnet_crypto_op_init (op, sa0->crypto_enc_op_id);
466 op->src = op->dst = payload;
467 op->key_index = sa0->crypto_key_index;
468 op->len = payload_len - icv_sz;
469 op->user_data = b - bufs;
471 if (ipsec_sa_is_set_IS_AEAD (sa0))
474 * construct the AAD in a scratch space in front
477 op->aad = payload - hdr_len - sizeof (esp_aead_t);
479 esp_aad_fill (op, esp, sa0);
481 op->tag = payload + op->len;
484 u64 *iv = (u64 *) (payload - iv_sz);
485 nonce->salt = sa0->salt;
486 nonce->iv = *iv = clib_host_to_net_u64 (sa0->gcm_iv_counter++);
487 op->iv = (u8 *) nonce;
492 op->iv = payload - iv_sz;
493 op->flags = VNET_CRYPTO_OP_FLAG_INIT_IV;
497 if (sa0->integ_op_id)
499 vnet_crypto_op_t *op;
500 vec_add2_aligned (ptd->integ_ops, op, 1, CLIB_CACHE_LINE_BYTES);
501 vnet_crypto_op_init (op, sa0->integ_op_id);
502 op->src = payload - iv_sz - sizeof (esp_header_t);
503 op->digest = payload + payload_len - icv_sz;
504 op->key_index = sa0->integ_key_index;
505 op->digest_len = icv_sz;
506 op->len = payload_len - icv_sz + iv_sz + sizeof (esp_header_t);
507 op->user_data = b - bufs;
508 if (ipsec_sa_is_set_USE_ESN (sa0))
510 u32 seq_hi = clib_net_to_host_u32 (sa0->seq_hi);
511 clib_memcpy_fast (op->digest, &seq_hi, sizeof (seq_hi));
512 op->len += sizeof (seq_hi);
516 vlib_buffer_advance (b[0], 0LL - hdr_len);
518 current_sa_packets += 1;
519 current_sa_bytes += payload_len;
522 if (PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED))
524 esp_encrypt_trace_t *tr = vlib_add_trace (vm, node, b[0],
526 tr->sa_index = sa_index0;
529 tr->sa_seq_hi = sa0->seq_hi;
530 tr->udp_encap = ipsec_sa_is_set_UDP_ENCAP (sa0);
531 tr->crypto_alg = sa0->crypto_alg;
532 tr->integ_alg = sa0->integ_alg;
540 vlib_increment_combined_counter (&ipsec_sa_counters, thread_index,
541 current_sa_index, current_sa_packets,
543 esp_process_ops (vm, node, ptd->crypto_ops, bufs, nexts);
544 esp_process_ops (vm, node, ptd->integ_ops, bufs, nexts);
546 vlib_node_increment_counter (vm, node->node_index,
547 ESP_ENCRYPT_ERROR_RX_PKTS, frame->n_vectors);
549 vlib_buffer_enqueue_to_next (vm, node, from, nexts, frame->n_vectors);
550 return frame->n_vectors;
553 VLIB_NODE_FN (esp4_encrypt_node) (vlib_main_t * vm,
554 vlib_node_runtime_t * node,
555 vlib_frame_t * from_frame)
557 return esp_encrypt_inline (vm, node, from_frame, 0 /* is_ip6 */ , 0);
561 VLIB_REGISTER_NODE (esp4_encrypt_node) = {
562 .name = "esp4-encrypt",
563 .vector_size = sizeof (u32),
564 .format_trace = format_esp_encrypt_trace,
565 .type = VLIB_NODE_TYPE_INTERNAL,
567 .n_errors = ARRAY_LEN(esp_encrypt_error_strings),
568 .error_strings = esp_encrypt_error_strings,
570 .n_next_nodes = ESP_ENCRYPT_N_NEXT,
572 #define _(s,n) [ESP_ENCRYPT_NEXT_##s] = n,
573 foreach_esp_encrypt_next
579 VLIB_NODE_FN (esp6_encrypt_node) (vlib_main_t * vm,
580 vlib_node_runtime_t * node,
581 vlib_frame_t * from_frame)
583 return esp_encrypt_inline (vm, node, from_frame, 1 /* is_ip6 */ , 0);
587 VLIB_REGISTER_NODE (esp6_encrypt_node) = {
588 .name = "esp6-encrypt",
589 .vector_size = sizeof (u32),
590 .format_trace = format_esp_encrypt_trace,
591 .type = VLIB_NODE_TYPE_INTERNAL,
593 .n_errors = ARRAY_LEN(esp_encrypt_error_strings),
594 .error_strings = esp_encrypt_error_strings,
596 .n_next_nodes = ESP_ENCRYPT_N_NEXT,
598 #define _(s,n) [ESP_ENCRYPT_NEXT_##s] = n,
599 foreach_esp_encrypt_next
605 VLIB_NODE_FN (esp4_encrypt_tun_node) (vlib_main_t * vm,
606 vlib_node_runtime_t * node,
607 vlib_frame_t * from_frame)
609 return esp_encrypt_inline (vm, node, from_frame, 0 /* is_ip6 */ , 1);
613 VLIB_REGISTER_NODE (esp4_encrypt_tun_node) = {
614 .name = "esp4-encrypt-tun",
615 .vector_size = sizeof (u32),
616 .format_trace = format_esp_encrypt_trace,
617 .type = VLIB_NODE_TYPE_INTERNAL,
619 .n_errors = ARRAY_LEN(esp_encrypt_error_strings),
620 .error_strings = esp_encrypt_error_strings,
624 [ESP_ENCRYPT_NEXT_DROP] = "ip4-drop",
628 VNET_FEATURE_INIT (esp4_encrypt_tun_feat_node, static) =
630 .arc_name = "ip4-output",
631 .node_name = "esp4-encrypt-tun",
632 .runs_before = VNET_FEATURES ("adj-midchain-tx"),
635 VNET_FEATURE_INIT (esp6o4_encrypt_tun_feat_node, static) =
637 .arc_name = "ip6-output",
638 .node_name = "esp4-encrypt-tun",
639 .runs_before = VNET_FEATURES ("adj-midchain-tx"),
642 VNET_FEATURE_INIT (esp4_ethernet_encrypt_tun_feat_node, static) =
644 .arc_name = "ethernet-output",
645 .node_name = "esp4-encrypt-tun",
646 .runs_before = VNET_FEATURES ("adj-midchain-tx", "adj-midchain-tx-no-count"),
650 VLIB_NODE_FN (esp6_encrypt_tun_node) (vlib_main_t * vm,
651 vlib_node_runtime_t * node,
652 vlib_frame_t * from_frame)
654 return esp_encrypt_inline (vm, node, from_frame, 1 /* is_ip6 */ , 1);
658 VLIB_REGISTER_NODE (esp6_encrypt_tun_node) = {
659 .name = "esp6-encrypt-tun",
660 .vector_size = sizeof (u32),
661 .format_trace = format_esp_encrypt_trace,
662 .type = VLIB_NODE_TYPE_INTERNAL,
664 .n_errors = ARRAY_LEN(esp_encrypt_error_strings),
665 .error_strings = esp_encrypt_error_strings,
669 [ESP_ENCRYPT_NEXT_DROP] = "ip6-drop",
673 VNET_FEATURE_INIT (esp6_encrypt_tun_feat_node, static) =
675 .arc_name = "ip6-output",
676 .node_name = "esp6-encrypt-tun",
677 .runs_before = VNET_FEATURES ("adj-midchain-tx"),
680 VNET_FEATURE_INIT (esp4o6_encrypt_tun_feat_node, static) =
682 .arc_name = "ip4-output",
683 .node_name = "esp6-encrypt-tun",
684 .runs_before = VNET_FEATURES ("adj-midchain-tx"),
692 } esp_no_crypto_trace_t;
695 format_esp_no_crypto_trace (u8 * s, va_list * args)
697 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
698 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
699 esp_no_crypto_trace_t *t = va_arg (*args, esp_no_crypto_trace_t *);
701 s = format (s, "esp-no-crypto: sa-index %u", t->sa_index);
708 ESP_NO_CRYPTO_NEXT_DROP,
709 ESP_NO_CRYPTO_N_NEXT,
714 ESP_NO_CRYPTO_ERROR_RX_PKTS,
717 static char *esp_no_crypto_error_strings[] = {
718 "Outbound ESP packets received",
722 esp_no_crypto_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
723 vlib_frame_t * frame)
725 vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b = bufs;
726 u16 nexts[VLIB_FRAME_SIZE], *next = nexts;
727 u32 *from = vlib_frame_vector_args (frame);
728 u32 n_left = frame->n_vectors;
730 vlib_get_buffers (vm, from, b, n_left);
737 /* packets are always going to be dropped, but get the sa_index */
738 sa_index0 = *(u32 *) vnet_feature_next_with_data (&next0, b[0],
741 next[0] = ESP_NO_CRYPTO_NEXT_DROP;
743 if (PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED))
745 esp_no_crypto_trace_t *tr = vlib_add_trace (vm, node, b[0],
747 tr->sa_index = sa_index0;
755 vlib_node_increment_counter (vm, node->node_index,
756 ESP_NO_CRYPTO_ERROR_RX_PKTS, frame->n_vectors);
758 vlib_buffer_enqueue_to_next (vm, node, from, nexts, frame->n_vectors);
760 return frame->n_vectors;
763 VLIB_NODE_FN (esp4_no_crypto_tun_node) (vlib_main_t * vm,
764 vlib_node_runtime_t * node,
765 vlib_frame_t * from_frame)
767 return esp_no_crypto_inline (vm, node, from_frame);
771 VLIB_REGISTER_NODE (esp4_no_crypto_tun_node) =
773 .name = "esp4-no-crypto",
774 .vector_size = sizeof (u32),
775 .format_trace = format_esp_no_crypto_trace,
776 .n_errors = ARRAY_LEN(esp_no_crypto_error_strings),
777 .error_strings = esp_no_crypto_error_strings,
778 .n_next_nodes = ESP_NO_CRYPTO_N_NEXT,
780 [ESP_NO_CRYPTO_NEXT_DROP] = "ip4-drop",
784 VNET_FEATURE_INIT (esp4_no_crypto_tun_feat_node, static) =
786 .arc_name = "ip4-output",
787 .node_name = "esp4-no-crypto",
788 .runs_before = VNET_FEATURES ("adj-midchain-tx"),
791 VLIB_NODE_FN (esp6_no_crypto_tun_node) (vlib_main_t * vm,
792 vlib_node_runtime_t * node,
793 vlib_frame_t * from_frame)
795 return esp_no_crypto_inline (vm, node, from_frame);
799 VLIB_REGISTER_NODE (esp6_no_crypto_tun_node) =
801 .name = "esp6-no-crypto",
802 .vector_size = sizeof (u32),
803 .format_trace = format_esp_no_crypto_trace,
804 .n_errors = ARRAY_LEN(esp_no_crypto_error_strings),
805 .error_strings = esp_no_crypto_error_strings,
806 .n_next_nodes = ESP_NO_CRYPTO_N_NEXT,
808 [ESP_NO_CRYPTO_NEXT_DROP] = "ip6-drop",
812 VNET_FEATURE_INIT (esp6_no_crypto_tun_feat_node, static) =
814 .arc_name = "ip6-output",
815 .node_name = "esp6-no-crypto",
816 .runs_before = VNET_FEATURES ("adj-midchain-tx"),
821 * fd.io coding-style-patch-verification: ON
824 * eval: (c-set-style "gnu")