2 * esp_encrypt.c : IPSec ESP encrypt node using DPDK Cryptodev
4 * Copyright (c) 2017 Intel 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>
22 #include <vnet/ipsec/ipsec.h>
23 #include <vnet/ipsec/esp.h>
24 #include <vnet/udp/udp.h>
25 #include <dpdk/buffer.h>
26 #include <dpdk/ipsec/ipsec.h>
27 #include <vnet/ipsec/ipsec_tun.h>
28 #include <dpdk/device/dpdk.h>
29 #include <dpdk/device/dpdk_priv.h>
31 #define foreach_esp_encrypt_next \
32 _(DROP, "error-drop") \
33 _(IP4_LOOKUP, "ip4-lookup") \
34 _(IP6_LOOKUP, "ip6-lookup") \
35 _(INTERFACE_OUTPUT, "interface-output")
37 #define _(v, s) ESP_ENCRYPT_NEXT_##v,
40 foreach_esp_encrypt_next
45 #define foreach_esp_encrypt_error \
46 _(RX_PKTS, "ESP pkts received") \
47 _(SEQ_CYCLED, "Sequence number cycled") \
48 _(ENQ_FAIL, "Enqueue failed to crypto device") \
49 _(DISCARD, "Not enough crypto operations, discarding frame") \
50 _(SESSION, "Failed to get crypto session") \
51 _(NOSUP, "Cipher/Auth not supported")
56 #define _(sym,str) ESP_ENCRYPT_ERROR_##sym,
57 foreach_esp_encrypt_error
60 } esp_encrypt_error_t;
62 static char *esp_encrypt_error_strings[] = {
63 #define _(sym,string) string,
64 foreach_esp_encrypt_error
68 extern vlib_node_registration_t dpdk_esp4_encrypt_node;
69 extern vlib_node_registration_t dpdk_esp6_encrypt_node;
70 extern vlib_node_registration_t dpdk_esp4_encrypt_tun_node;
71 extern vlib_node_registration_t dpdk_esp6_encrypt_tun_node;
75 ipsec_crypto_alg_t crypto_alg;
76 ipsec_integ_alg_t integ_alg;
78 } esp_encrypt_trace_t;
80 /* packet trace format function */
82 format_esp_encrypt_trace (u8 * s, va_list * args)
84 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
85 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
86 esp_encrypt_trace_t *t = va_arg (*args, esp_encrypt_trace_t *);
87 ip4_header_t *ih4 = (ip4_header_t *) t->packet_data;
88 u32 indent = format_get_indent (s), offset;
90 s = format (s, "cipher %U auth %U\n",
91 format_ipsec_crypto_alg, t->crypto_alg,
92 format_ipsec_integ_alg, t->integ_alg);
94 if ((ih4->ip_version_and_header_length & 0xF0) == 0x60)
96 s = format (s, "%U%U", format_white_space, indent,
97 format_ip6_header, ih4);
98 offset = sizeof (ip6_header_t);
102 s = format (s, "%U%U", format_white_space, indent,
103 format_ip4_header, ih4);
104 offset = ip4_header_bytes (ih4);
107 s = format (s, "\n%U%U", format_white_space, indent,
108 format_esp_header, t->packet_data + offset);
114 dpdk_esp_encrypt_inline (vlib_main_t * vm,
115 vlib_node_runtime_t * node,
116 vlib_frame_t * from_frame, int is_ip6, int is_tun)
118 u32 n_left_from, *from, *to_next, next_index, thread_index;
119 ipsec_main_t *im = &ipsec_main;
120 vnet_main_t *vnm = im->vnet_main;
121 vnet_interface_main_t *vim = &vnm->interface_main;
122 u32 thread_idx = vlib_get_thread_index ();
123 dpdk_crypto_main_t *dcm = &dpdk_crypto_main;
124 crypto_resource_t *res = 0;
126 crypto_alg_t *cipher_alg = 0, *auth_alg = 0;
127 struct rte_cryptodev_sym_session *session = 0;
128 u32 ret, last_sa_index = ~0;
129 u8 numa = rte_socket_id ();
131 crypto_worker_main_t *cwm =
132 vec_elt_at_index (dcm->workers_main, thread_idx);
133 struct rte_crypto_op **ops = cwm->ops;
135 from = vlib_frame_vector_args (from_frame);
136 n_left_from = from_frame->n_vectors;
137 thread_index = vm->thread_index;
139 ret = crypto_alloc_ops (numa, ops, n_left_from);
143 vlib_node_increment_counter (vm, dpdk_esp6_encrypt_node.index,
144 ESP_ENCRYPT_ERROR_DISCARD, 1);
146 vlib_node_increment_counter (vm, dpdk_esp4_encrypt_node.index,
147 ESP_ENCRYPT_ERROR_DISCARD, 1);
148 /* Discard whole frame */
152 next_index = ESP_ENCRYPT_NEXT_DROP;
154 while (n_left_from > 0)
158 vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
160 while (n_left_from > 0 && n_left_to_next > 0)
164 vlib_buffer_t *b0, *b1;
166 ip4_and_esp_header_t *ih0, *oh0 = 0;
167 ip6_and_esp_header_t *ih6_0, *oh6_0 = 0;
168 ip4_and_udp_and_esp_header_t *ouh0 = 0;
176 u16 udp_encap_adv = 0;
177 struct rte_mbuf *mb0;
178 struct rte_crypto_op *op;
185 b0 = vlib_get_buffer (vm, bi0);
186 ih0 = vlib_buffer_get_current (b0);
187 mb0 = rte_mbuf_from_vlib_buffer (b0);
190 CLIB_PREFETCH (ih0, sizeof (ih6_0[0]), LOAD);
192 CLIB_PREFETCH (vlib_buffer_get_tail (b0), 20, STORE);
194 CLIB_PREFETCH (mb0, CLIB_CACHE_LINE_BYTES, STORE);
199 b1 = vlib_get_buffer (vm, bi1);
201 CLIB_PREFETCH (b1, CLIB_CACHE_LINE_BYTES, LOAD);
202 CLIB_PREFETCH (b1->data - CLIB_CACHE_LINE_BYTES,
203 CLIB_CACHE_LINE_BYTES, STORE);
208 ASSERT (op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED);
210 dpdk_op_priv_t *priv = crypto_op_get_priv (op);
211 /* store bi in op private */
216 sizeof (op[0]) + sizeof (op[0].sym[0]) + sizeof (priv[0]);
217 CLIB_PREFETCH (op, op_len, STORE);
221 /* we are on a ipsec tunnel's feature arc */
222 vnet_buffer (b0)->ipsec.sad_index =
223 sa_index0 = ipsec_tun_protect_get_sa_out
224 (vnet_buffer (b0)->ip.adj_index[VLIB_TX]);
227 sa_index0 = vnet_buffer (b0)->ipsec.sad_index;
229 if (sa_index0 != last_sa_index)
231 sa0 = pool_elt_at_index (im->sad, sa_index0);
234 vec_elt_at_index (dcm->cipher_algs, sa0->crypto_alg);
235 auth_alg = vec_elt_at_index (dcm->auth_algs, sa0->integ_alg);
237 is_aead = (cipher_alg->type == RTE_CRYPTO_SYM_XFORM_AEAD);
240 auth_alg = cipher_alg;
242 res_idx = get_resource (cwm, sa0);
244 if (PREDICT_FALSE (res_idx == (u16) ~ 0))
246 clib_warning ("unsupported SA by thread index %u",
249 vlib_node_increment_counter (vm,
250 dpdk_esp6_encrypt_node.index,
251 ESP_ENCRYPT_ERROR_NOSUP, 1);
253 vlib_node_increment_counter (vm,
254 dpdk_esp4_encrypt_node.index,
255 ESP_ENCRYPT_ERROR_NOSUP, 1);
261 res = vec_elt_at_index (dcm->resource, res_idx);
263 error = crypto_get_session (&session, sa_index0, res, cwm, 1);
264 if (PREDICT_FALSE (error || !session))
266 clib_warning ("failed to get crypto session");
268 vlib_node_increment_counter (vm,
269 dpdk_esp6_encrypt_node.index,
270 ESP_ENCRYPT_ERROR_SESSION,
273 vlib_node_increment_counter (vm,
274 dpdk_esp4_encrypt_node.index,
275 ESP_ENCRYPT_ERROR_SESSION,
283 last_sa_index = sa_index0;
286 if (PREDICT_FALSE (esp_seq_advance (sa0)))
289 ("sequence number counter has cycled SPI %u (0x%08x)",
292 vlib_node_increment_counter (vm,
293 dpdk_esp6_encrypt_node.index,
294 ESP_ENCRYPT_ERROR_SEQ_CYCLED, 1);
296 vlib_node_increment_counter (vm,
297 dpdk_esp4_encrypt_node.index,
298 ESP_ENCRYPT_ERROR_SEQ_CYCLED, 1);
306 orig_sz = b0->current_length;
308 /* TODO multi-seg support - total_length_not_including_first_buffer */
309 vlib_increment_combined_counter
310 (&ipsec_sa_counters, thread_index, sa_index0,
311 1, b0->current_length);
313 /* Update tunnel interface tx counters */
315 vlib_increment_combined_counter
316 (vim->combined_sw_if_counters + VNET_INTERFACE_COUNTER_TX,
317 thread_index, vnet_buffer (b0)->sw_if_index[VLIB_TX],
318 1, b0->current_length);
320 res->ops[res->n_ops] = op;
321 res->bi[res->n_ops] = bi0;
324 dpdk_gcm_cnt_blk *icb = &priv->cb;
326 crypto_set_icb (icb, sa0->salt, sa0->seq, sa0->seq_hi);
328 iv_size = cipher_alg->iv_len;
329 trunc_size = auth_alg->trunc_size;
331 /* if UDP encapsulation is used adjust the address of the IP header */
332 if (ipsec_sa_is_set_UDP_ENCAP (sa0) && !is_ip6)
333 udp_encap_adv = sizeof (udp_header_t);
335 if (ipsec_sa_is_set_IS_TUNNEL (sa0))
338 if (!ipsec_sa_is_set_IS_TUNNEL_V6 (sa0)) /* ip4 */
340 /* in tunnel mode send it back to FIB */
341 priv->next = DPDK_CRYPTO_INPUT_NEXT_IP4_LOOKUP;
342 u8 adv = sizeof (ip4_header_t) + udp_encap_adv +
343 sizeof (esp_header_t) + iv_size;
344 vlib_buffer_advance (b0, -adv);
345 oh0 = vlib_buffer_get_current (b0);
346 ouh0 = vlib_buffer_get_current (b0);
347 next_hdr_type = (is_ip6 ?
348 IP_PROTOCOL_IPV6 : IP_PROTOCOL_IP_IN_IP);
350 * oh0->ip4.ip_version_and_header_length = 0x45;
351 * oh0->ip4.tos = ih0->ip4.tos;
352 * oh0->ip4.fragment_id = 0;
353 * oh0->ip4.flags_and_fragment_offset = 0;
355 oh0->ip4.checksum_data_64[0] =
356 clib_host_to_net_u64 (0x45ULL << 56);
358 * oh0->ip4.ttl = 254;
359 * oh0->ip4.protocol = IP_PROTOCOL_IPSEC_ESP;
361 oh0->ip4.checksum_data_32[2] =
362 clib_host_to_net_u32 (0xfe320000);
364 oh0->ip4.src_address.as_u32 =
365 sa0->tunnel_src_addr.ip4.as_u32;
366 oh0->ip4.dst_address.as_u32 =
367 sa0->tunnel_dst_addr.ip4.as_u32;
369 if (ipsec_sa_is_set_UDP_ENCAP (sa0))
371 oh0->ip4.protocol = IP_PROTOCOL_UDP;
376 esp0->spi = clib_host_to_net_u32 (sa0->spi);
377 esp0->seq = clib_host_to_net_u32 (sa0->seq);
382 /* in tunnel mode send it back to FIB */
383 priv->next = DPDK_CRYPTO_INPUT_NEXT_IP6_LOOKUP;
386 sizeof (ip6_header_t) + sizeof (esp_header_t) + iv_size;
387 vlib_buffer_advance (b0, -adv);
388 ih6_0 = (ip6_and_esp_header_t *) ih0;
389 oh6_0 = vlib_buffer_get_current (b0);
391 next_hdr_type = (is_ip6 ?
392 IP_PROTOCOL_IPV6 : IP_PROTOCOL_IP_IN_IP);
394 oh6_0->ip6.ip_version_traffic_class_and_flow_label =
395 ih6_0->ip6.ip_version_traffic_class_and_flow_label;
397 oh6_0->ip6.protocol = IP_PROTOCOL_IPSEC_ESP;
398 oh6_0->ip6.hop_limit = 254;
399 oh6_0->ip6.src_address.as_u64[0] =
400 sa0->tunnel_src_addr.ip6.as_u64[0];
401 oh6_0->ip6.src_address.as_u64[1] =
402 sa0->tunnel_src_addr.ip6.as_u64[1];
403 oh6_0->ip6.dst_address.as_u64[0] =
404 sa0->tunnel_dst_addr.ip6.as_u64[0];
405 oh6_0->ip6.dst_address.as_u64[1] =
406 sa0->tunnel_dst_addr.ip6.as_u64[1];
408 oh6_0->esp.spi = clib_host_to_net_u32 (sa0->spi);
409 oh6_0->esp.seq = clib_host_to_net_u32 (sa0->seq);
412 vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
414 else /* transport mode */
419 priv->next = DPDK_CRYPTO_INPUT_NEXT_MIDCHAIN;
423 priv->next = DPDK_CRYPTO_INPUT_NEXT_INTERFACE_OUTPUT;
424 rewrite_len = vnet_buffer (b0)->ip.save_rewrite_length;
426 u16 adv = sizeof (esp_header_t) + iv_size + udp_encap_adv;
427 vlib_buffer_advance (b0, -adv - rewrite_len);
428 u8 *src = ((u8 *) ih0) - rewrite_len;
429 u8 *dst = vlib_buffer_get_current (b0);
430 oh0 = vlib_buffer_get_current (b0) + rewrite_len;
431 ouh0 = vlib_buffer_get_current (b0) + rewrite_len;
435 orig_sz -= sizeof (ip6_header_t);
436 ih6_0 = (ip6_and_esp_header_t *) ih0;
437 next_hdr_type = ih6_0->ip6.protocol;
438 memmove (dst, src, rewrite_len + sizeof (ip6_header_t));
439 oh6_0 = (ip6_and_esp_header_t *) oh0;
440 oh6_0->ip6.protocol = IP_PROTOCOL_IPSEC_ESP;
445 u16 ip_size = ip4_header_bytes (&ih0->ip4);
447 next_hdr_type = ih0->ip4.protocol;
448 memmove (dst, src, rewrite_len + ip_size);
449 oh0->ip4.protocol = IP_PROTOCOL_IPSEC_ESP;
450 esp0 = (esp_header_t *) (((u8 *) oh0) + ip_size);
451 if (ipsec_sa_is_set_UDP_ENCAP (sa0))
453 oh0->ip4.protocol = IP_PROTOCOL_UDP;
454 esp0 = (esp_header_t *)
455 (((u8 *) oh0) + ip_size + udp_encap_adv);
459 oh0->ip4.protocol = IP_PROTOCOL_IPSEC_ESP;
460 esp0 = (esp_header_t *) (((u8 *) oh0) + ip_size);
463 esp0->spi = clib_host_to_net_u32 (sa0->spi);
464 esp0->seq = clib_host_to_net_u32 (sa0->seq);
467 if (ipsec_sa_is_set_UDP_ENCAP (sa0) && ouh0)
469 ouh0->udp.src_port = clib_host_to_net_u16 (UDP_DST_PORT_ipsec);
470 ouh0->udp.dst_port = clib_host_to_net_u16 (UDP_DST_PORT_ipsec);
471 ouh0->udp.checksum = 0;
473 ASSERT (is_pow2 (cipher_alg->boundary));
474 u16 mask = cipher_alg->boundary - 1;
475 u16 pad_payload_len = ((orig_sz + 2) + mask) & ~mask;
476 u8 pad_bytes = pad_payload_len - 2 - orig_sz;
479 vlib_buffer_put_uninit (b0, pad_bytes + 2 + trunc_size);
481 /* The extra pad bytes would be overwritten by the digest */
483 clib_memcpy_fast (padding, pad_data, 16);
485 f0 = (esp_footer_t *) (padding + pad_bytes);
486 f0->pad_length = pad_bytes;
487 f0->next_header = next_hdr_type;
491 u16 len = b0->current_length - sizeof (ip6_header_t);
492 oh6_0->ip6.payload_length =
493 clib_host_to_net_u16 (len - rewrite_len);
498 clib_host_to_net_u16 (b0->current_length - rewrite_len);
499 oh0->ip4.checksum = ip4_header_checksum (&oh0->ip4);
500 if (ipsec_sa_is_set_UDP_ENCAP (sa0) && ouh0)
503 clib_host_to_net_u16 (clib_net_to_host_u16
505 ip4_header_bytes (&ouh0->ip4));
508 else /* should never happen */
509 clib_warning ("No outer header found for ESP packet");
511 b0->flags |= VLIB_BUFFER_TOTAL_LENGTH_VALID;
513 /* mbuf packet starts at ESP header */
514 mb0->data_len = vlib_buffer_get_tail (b0) - ((u8 *) esp0);
515 mb0->pkt_len = vlib_buffer_get_tail (b0) - ((u8 *) esp0);
516 mb0->data_off = ((void *) esp0) - mb0->buf_addr;
518 u32 cipher_off, cipher_len, auth_len = 0;
521 u8 *digest = vlib_buffer_get_tail (b0) - trunc_size;
523 mb0->buf_physaddr + digest - ((u8 *) mb0->buf_addr);
525 if (!is_aead && (cipher_alg->alg == RTE_CRYPTO_CIPHER_AES_CBC ||
526 cipher_alg->alg == RTE_CRYPTO_CIPHER_NULL))
528 cipher_off = sizeof (esp_header_t);
529 cipher_len = iv_size + pad_payload_len;
533 u32 *esp_iv = (u32 *) (esp0 + 1);
534 esp_iv[0] = sa0->seq;
535 esp_iv[1] = sa0->seq_hi;
537 cipher_off = sizeof (esp_header_t) + iv_size;
538 cipher_len = pad_payload_len;
543 aad = (u32 *) priv->aad;
546 /* aad[3] should always be 0 */
547 if (PREDICT_FALSE (ipsec_sa_is_set_USE_ESN (sa0)))
549 aad[1] = clib_host_to_net_u32 (sa0->seq_hi);
561 vlib_buffer_get_tail (b0) - ((u8 *) esp0) - trunc_size;
562 if (ipsec_sa_is_set_USE_ESN (sa0))
564 u32 *_digest = (u32 *) digest;
565 _digest[0] = clib_host_to_net_u32 (sa0->seq_hi);
570 crypto_op_setup (is_aead, mb0, op, session, cipher_off, cipher_len,
571 0, auth_len, (u8 *) aad, digest, digest_paddr);
574 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
576 esp_encrypt_trace_t *tr =
577 vlib_add_trace (vm, node, b0, sizeof (*tr));
578 tr->crypto_alg = sa0->crypto_alg;
579 tr->integ_alg = sa0->integ_alg;
580 u8 *p = vlib_buffer_get_current (b0);
581 if (!ipsec_sa_is_set_IS_TUNNEL (sa0) && !is_tun)
582 p += vnet_buffer (b0)->ip.save_rewrite_length;
583 clib_memcpy_fast (tr->packet_data, p, sizeof (tr->packet_data));
586 vlib_put_next_frame (vm, node, next_index, n_left_to_next);
590 vlib_node_increment_counter (vm,
592 dpdk_esp6_encrypt_tun_node.index :
593 dpdk_esp6_encrypt_node.index),
594 ESP_ENCRYPT_ERROR_RX_PKTS,
595 from_frame->n_vectors);
597 crypto_enqueue_ops (vm, cwm, dpdk_esp6_encrypt_node.index,
598 ESP_ENCRYPT_ERROR_ENQ_FAIL, numa, 1 /* encrypt */ );
602 vlib_node_increment_counter (vm,
604 dpdk_esp4_encrypt_tun_node.index :
605 dpdk_esp4_encrypt_node.index),
606 ESP_ENCRYPT_ERROR_RX_PKTS,
607 from_frame->n_vectors);
609 crypto_enqueue_ops (vm, cwm, dpdk_esp4_encrypt_node.index,
610 ESP_ENCRYPT_ERROR_ENQ_FAIL, numa, 1 /* encrypt */ );
613 crypto_free_ops (numa, ops, cwm->ops + from_frame->n_vectors - ops);
615 return from_frame->n_vectors;
618 VLIB_NODE_FN (dpdk_esp4_encrypt_node) (vlib_main_t * vm,
619 vlib_node_runtime_t * node,
620 vlib_frame_t * from_frame)
622 return dpdk_esp_encrypt_inline (vm, node, from_frame, 0 /*is_ip6 */ , 0);
626 VLIB_REGISTER_NODE (dpdk_esp4_encrypt_node) = {
627 .name = "dpdk-esp4-encrypt",
628 .flags = VLIB_NODE_FLAG_IS_OUTPUT,
629 .vector_size = sizeof (u32),
630 .format_trace = format_esp_encrypt_trace,
631 .n_errors = ARRAY_LEN (esp_encrypt_error_strings),
632 .error_strings = esp_encrypt_error_strings,
636 [ESP_ENCRYPT_NEXT_DROP] = "error-drop",
641 VLIB_NODE_FN (dpdk_esp6_encrypt_node) (vlib_main_t * vm,
642 vlib_node_runtime_t * node,
643 vlib_frame_t * from_frame)
645 return dpdk_esp_encrypt_inline (vm, node, from_frame, 1 /*is_ip6 */ , 0);
649 VLIB_REGISTER_NODE (dpdk_esp6_encrypt_node) = {
650 .name = "dpdk-esp6-encrypt",
651 .flags = VLIB_NODE_FLAG_IS_OUTPUT,
652 .vector_size = sizeof (u32),
653 .format_trace = format_esp_encrypt_trace,
654 .n_errors = ARRAY_LEN (esp_encrypt_error_strings),
655 .error_strings = esp_encrypt_error_strings,
659 [ESP_ENCRYPT_NEXT_DROP] = "error-drop",
664 VLIB_NODE_FN (dpdk_esp4_encrypt_tun_node) (vlib_main_t * vm,
665 vlib_node_runtime_t * node,
666 vlib_frame_t * from_frame)
668 return dpdk_esp_encrypt_inline (vm, node, from_frame, 0 /*is_ip6 */ , 1);
672 VLIB_REGISTER_NODE (dpdk_esp4_encrypt_tun_node) = {
673 .name = "dpdk-esp4-encrypt-tun",
674 .flags = VLIB_NODE_FLAG_IS_OUTPUT,
675 .vector_size = sizeof (u32),
676 .format_trace = format_esp_encrypt_trace,
677 .n_errors = ARRAY_LEN (esp_encrypt_error_strings),
678 .error_strings = esp_encrypt_error_strings,
682 [ESP_ENCRYPT_NEXT_DROP] = "error-drop",
686 VNET_FEATURE_INIT (dpdk_esp4_encrypt_tun_feat_node, static) =
688 .arc_name = "ip4-output",
689 .node_name = "dpdk-esp4-encrypt-tun",
690 .runs_before = VNET_FEATURES ("adj-midchain-tx"),
694 VLIB_NODE_FN (dpdk_esp6_encrypt_tun_node) (vlib_main_t * vm,
695 vlib_node_runtime_t * node,
696 vlib_frame_t * from_frame)
698 return dpdk_esp_encrypt_inline (vm, node, from_frame, 1 /*is_ip6 */ , 1);
702 VLIB_REGISTER_NODE (dpdk_esp6_encrypt_tun_node) = {
703 .name = "dpdk-esp6-encrypt-tun",
704 .flags = VLIB_NODE_FLAG_IS_OUTPUT,
705 .vector_size = sizeof (u32),
706 .format_trace = format_esp_encrypt_trace,
707 .n_errors = ARRAY_LEN (esp_encrypt_error_strings),
708 .error_strings = esp_encrypt_error_strings,
712 [ESP_ENCRYPT_NEXT_DROP] = "error-drop",
716 VNET_FEATURE_INIT (dpdk_esp6_encrypt_tun_feat_node, static) =
718 .arc_name = "ip6-output",
719 .node_name = "dpdk-esp6-encrypt-tun",
720 .runs_before = VNET_FEATURES ("adj-midchain-tx"),
725 * fd.io coding-style-patch-verification: ON
728 * eval: (c-set-style "gnu")