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Vector Packet Processing
esp_decrypt.c
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1 /*
2  * esp_decrypt.c : IPSec ESP Decrypt node using DPDK Cryptodev
3  *
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 opy of the License at:
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
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.
16  */
17 
18 #include <vnet/vnet.h>
19 #include <vnet/api_errno.h>
20 #include <vnet/ip/ip.h>
21 
22 #include <vnet/ipsec/ipsec.h>
23 #include <vnet/ipsec/esp.h>
24 #include <dpdk/buffer.h>
25 #include <dpdk/ipsec/ipsec.h>
26 #include <dpdk/device/dpdk.h>
27 #include <dpdk/device/dpdk_priv.h>
28 
29 #define foreach_esp_decrypt_next \
30 _(DROP, "error-drop") \
31 _(IP4_INPUT, "ip4-input-no-checksum") \
32 _(IP6_INPUT, "ip6-input")
33 
34 #define _(v, s) ESP_DECRYPT_NEXT_##v,
35 typedef enum
36 {
38 #undef _
41 
42 #define foreach_esp_decrypt_error \
43  _(RX_PKTS, "ESP pkts received") \
44  _(DECRYPTION_FAILED, "ESP decryption failed") \
45  _(REPLAY, "SA replayed packet") \
46  _(NOT_IP, "Not IP packet (dropped)") \
47  _(ENQ_FAIL, "Enqueue failed (buffer full)") \
48  _(DISCARD, "Not enough crypto operations, discarding frame") \
49  _(BAD_LEN, "Invalid ciphertext length") \
50  _(SESSION, "Failed to get crypto session") \
51  _(NOSUP, "Cipher/Auth not supported")
52 
53 
54 typedef enum
55 {
56 #define _(sym,str) ESP_DECRYPT_ERROR_##sym,
58 #undef _
61 
62 static char *esp_decrypt_error_strings[] = {
63 #define _(sym,string) string,
65 #undef _
66 };
67 
70 
71 typedef struct
72 {
73  ipsec_crypto_alg_t crypto_alg;
74  ipsec_integ_alg_t integ_alg;
75  u8 packet_data[64];
77 
78 /* packet trace format function */
79 static u8 *
80 format_esp_decrypt_trace (u8 * s, va_list * args)
81 {
82  CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
83  CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
84  esp_decrypt_trace_t *t = va_arg (*args, esp_decrypt_trace_t *);
85  u32 indent = format_get_indent (s);
86 
87  s = format (s, "cipher %U auth %U\n",
90  s = format (s, "%U%U",
92  return s;
93 }
94 
97  vlib_node_runtime_t * node,
98  vlib_frame_t * from_frame, int is_ip6)
99 {
100  u32 n_left_from, *from, *to_next, next_index, thread_index;
101  ipsec_main_t *im = &ipsec_main;
102  u32 thread_idx = vlib_get_thread_index ();
104  crypto_resource_t *res = 0;
105  ipsec_sa_t *sa0 = 0;
106  crypto_alg_t *cipher_alg = 0, *auth_alg = 0;
107  struct rte_cryptodev_sym_session *session = 0;
108  u32 ret, last_sa_index = ~0;
109  u8 numa = rte_socket_id ();
110  u8 is_aead = 0;
111  crypto_worker_main_t *cwm =
112  vec_elt_at_index (dcm->workers_main, thread_idx);
113  struct rte_crypto_op **ops = cwm->ops;
114 
115  from = vlib_frame_vector_args (from_frame);
116  n_left_from = from_frame->n_vectors;
117  thread_index = vm->thread_index;
118 
119  ret = crypto_alloc_ops (numa, ops, n_left_from);
120  if (ret)
121  {
122  if (is_ip6)
124  ESP_DECRYPT_ERROR_DISCARD, 1);
125  else
127  ESP_DECRYPT_ERROR_DISCARD, 1);
128  /* Discard whole frame */
129  return n_left_from;
130  }
131 
132  next_index = ESP_DECRYPT_NEXT_DROP;
133 
134  while (n_left_from > 0)
135  {
136  u32 n_left_to_next;
137 
138  vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
139 
140  while (n_left_from > 0 && n_left_to_next > 0)
141  {
142  clib_error_t *error;
143  u32 bi0, sa_index0, iv_size;
144  u8 trunc_size;
145  vlib_buffer_t *b0;
146  esp_header_t *esp0;
147  struct rte_mbuf *mb0;
148  struct rte_crypto_op *op;
149  u16 res_idx;
150 
151  bi0 = from[0];
152  from += 1;
153  n_left_from -= 1;
154 
155  b0 = vlib_get_buffer (vm, bi0);
156  mb0 = rte_mbuf_from_vlib_buffer (b0);
157  esp0 = vlib_buffer_get_current (b0);
158 
159  /* ih0/ih6_0 */
160  CLIB_PREFETCH (esp0, sizeof (esp0[0]) + 16, LOAD);
161  /* mb0 */
162  CLIB_PREFETCH (mb0, CLIB_CACHE_LINE_BYTES, STORE);
163 
164  op = ops[0];
165  ops += 1;
166  ASSERT (op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED);
167 
168  dpdk_op_priv_t *priv = crypto_op_get_priv (op);
169  /* store bi in op private */
170  priv->bi = bi0;
171  priv->encrypt = 0;
172 
173  u16 op_len =
174  sizeof (op[0]) + sizeof (op[0].sym[0]) + sizeof (priv[0]);
175  CLIB_PREFETCH (op, op_len, STORE);
176 
177  sa_index0 = vnet_buffer (b0)->ipsec.sad_index;
179  thread_index, sa_index0);
180 
181  if (sa_index0 != last_sa_index)
182  {
183  sa0 = pool_elt_at_index (im->sad, sa_index0);
184 
185  cipher_alg =
187  auth_alg = vec_elt_at_index (dcm->auth_algs, sa0->integ_alg);
188 
189  is_aead = (cipher_alg->type == RTE_CRYPTO_SYM_XFORM_AEAD);
190  if (is_aead)
191  auth_alg = cipher_alg;
192 
193  res_idx = get_resource (cwm, sa0);
194 
195  if (PREDICT_FALSE (res_idx == (u16) ~ 0))
196  {
197  clib_warning ("unsupported SA by thread index %u",
198  thread_idx);
199  if (is_ip6)
202  ESP_DECRYPT_ERROR_NOSUP, 1);
203  else
206  ESP_DECRYPT_ERROR_NOSUP, 1);
207  to_next[0] = bi0;
208  to_next += 1;
209  n_left_to_next -= 1;
210  goto trace;
211  }
212  res = vec_elt_at_index (dcm->resource, res_idx);
213 
214  error = crypto_get_session (&session, sa_index0, res, cwm, 0);
215  if (PREDICT_FALSE (error || !session))
216  {
217  clib_warning ("failed to get crypto session");
218  if (is_ip6)
221  ESP_DECRYPT_ERROR_SESSION,
222  1);
223  else
226  ESP_DECRYPT_ERROR_SESSION,
227  1);
228  to_next[0] = bi0;
229  to_next += 1;
230  n_left_to_next -= 1;
231  goto trace;
232  }
233 
234  last_sa_index = sa_index0;
235  }
236 
237  /* anti-replay check */
239  (sa0, clib_host_to_net_u32 (esp0->seq)))
240  {
241  clib_warning ("failed anti-replay check");
242  if (is_ip6)
245  ESP_DECRYPT_ERROR_REPLAY, 1);
246  else
249  ESP_DECRYPT_ERROR_REPLAY, 1);
250  to_next[0] = bi0;
251  to_next += 1;
252  n_left_to_next -= 1;
253  goto trace;
254  }
255 
256  if (is_ip6)
257  priv->next = DPDK_CRYPTO_INPUT_NEXT_DECRYPT6_POST;
258  else
259  priv->next = DPDK_CRYPTO_INPUT_NEXT_DECRYPT4_POST;
260 
261  /* FIXME multi-seg */
263  (&ipsec_sa_counters, thread_index, sa_index0,
264  1, b0->current_length);
265 
266  res->ops[res->n_ops] = op;
267  res->bi[res->n_ops] = bi0;
268  res->n_ops += 1;
269 
270  /* Convert vlib buffer to mbuf */
271  mb0->data_len = b0->current_length;
272  mb0->pkt_len = b0->current_length;
273  mb0->data_off = RTE_PKTMBUF_HEADROOM + b0->current_data;
274 
275  trunc_size = auth_alg->trunc_size;
276  iv_size = cipher_alg->iv_len;
277 
278  /* Outer IP header has already been stripped */
279  u16 payload_len =
280  b0->current_length - sizeof (esp_header_t) - iv_size - trunc_size;
281 
282  ASSERT (payload_len >= 4);
283 
284  if (payload_len & (cipher_alg->boundary - 1))
285  {
286  clib_warning ("payload %u not multiple of %d\n",
287  payload_len, cipher_alg->boundary);
288  if (is_ip6)
290  ESP_DECRYPT_ERROR_BAD_LEN, 1);
291  else
293  ESP_DECRYPT_ERROR_BAD_LEN, 1);
294  res->n_ops -= 1;
295  to_next[0] = bi0;
296  to_next += 1;
297  n_left_to_next -= 1;
298  goto trace;
299  }
300 
301  u32 cipher_off, cipher_len;
302  u32 auth_len = 0;
303  u8 *aad = NULL;
304 
305  u8 *iv = (u8 *) (esp0 + 1);
306 
307  dpdk_gcm_cnt_blk *icb = &priv->cb;
308 
309  cipher_off = sizeof (esp_header_t) + iv_size;
310  cipher_len = payload_len;
311 
312  u8 *digest = vlib_buffer_get_tail (b0) - trunc_size;
313  u64 digest_paddr =
314  mb0->buf_physaddr + digest - ((u8 *) mb0->buf_addr);
315 
316  if (!is_aead && cipher_alg->alg == RTE_CRYPTO_CIPHER_AES_CBC)
317  clib_memcpy_fast (icb, iv, 16);
318  else /* CTR/GCM */
319  {
320  u32 *_iv = (u32 *) iv;
321 
322  crypto_set_icb (icb, sa0->salt, _iv[0], _iv[1]);
323  }
324 
325  if (is_aead)
326  {
327  aad = priv->aad;
328  u32 *_aad = (u32 *) aad;
329  clib_memcpy_fast (aad, esp0, 8);
330 
331  /* _aad[3] should always be 0 */
332  if (PREDICT_FALSE (ipsec_sa_is_set_USE_ESN (sa0)))
333  {
334  _aad[2] = _aad[1];
335  _aad[1] = clib_host_to_net_u32 (sa0->seq_hi);
336  }
337  else
338  _aad[2] = 0;
339  }
340  else
341  {
342  auth_len = sizeof (esp_header_t) + iv_size + payload_len;
343 
344  if (ipsec_sa_is_set_USE_ESN (sa0))
345  {
346  clib_memcpy_fast (priv->icv, digest, trunc_size);
347  u32 *_digest = (u32 *) digest;
348  _digest[0] = clib_host_to_net_u32 (sa0->seq_hi);
349  auth_len += sizeof (sa0->seq_hi);
350 
351  digest = priv->icv;
352  digest_paddr =
353  op->phys_addr + (uintptr_t) priv->icv - (uintptr_t) op;
354  }
355  }
356 
357  crypto_op_setup (is_aead, mb0, op, session, cipher_off, cipher_len,
358  0, auth_len, aad, digest, digest_paddr);
359  trace:
360  if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
361  {
362  esp_decrypt_trace_t *tr =
363  vlib_add_trace (vm, node, b0, sizeof (*tr));
364  tr->crypto_alg = sa0->crypto_alg;
365  tr->integ_alg = sa0->integ_alg;
367  sizeof (esp_header_t));
368  }
369  }
370  vlib_put_next_frame (vm, node, next_index, n_left_to_next);
371  }
372 
373  if (is_ip6)
374  {
376  ESP_DECRYPT_ERROR_RX_PKTS,
377  from_frame->n_vectors);
378 
380  ESP_DECRYPT_ERROR_ENQ_FAIL, numa, 0 /* encrypt */ );
381  }
382  else
383  {
385  ESP_DECRYPT_ERROR_RX_PKTS,
386  from_frame->n_vectors);
387 
389  ESP_DECRYPT_ERROR_ENQ_FAIL, numa, 0 /* encrypt */ );
390  }
391 
392  crypto_free_ops (numa, ops, cwm->ops + from_frame->n_vectors - ops);
393 
394  return from_frame->n_vectors;
395 }
396 
398  vlib_node_runtime_t * node,
399  vlib_frame_t * from_frame)
400 {
401  return dpdk_esp_decrypt_inline (vm, node, from_frame, 0 /*is_ip6 */ );
402 }
403 
404 /* *INDENT-OFF* */
406  .name = "dpdk-esp4-decrypt",
407  .vector_size = sizeof (u32),
408  .format_trace = format_esp_decrypt_trace,
410 
412  .error_strings = esp_decrypt_error_strings,
413 
414  .n_next_nodes = ESP_DECRYPT_N_NEXT,
415  .next_nodes = {
416 #define _(s,n) [ESP_DECRYPT_NEXT_##s] = n,
418 #undef _
419  },
420 };
421 /* *INDENT-ON* */
422 
424  vlib_node_runtime_t * node,
425  vlib_frame_t * from_frame)
426 {
427  return dpdk_esp_decrypt_inline (vm, node, from_frame, 1 /*is_ip6 */ );
428 }
429 
430 /* *INDENT-OFF* */
432  .name = "dpdk-esp6-decrypt",
433  .vector_size = sizeof (u32),
434  .format_trace = format_esp_decrypt_trace,
436 
438  .error_strings = esp_decrypt_error_strings,
439 
440  .n_next_nodes = ESP_DECRYPT_N_NEXT,
441  .next_nodes = {
442 #define _(s,n) [ESP_DECRYPT_NEXT_##s] = n,
444 #undef _
445  },
446 };
447 /* *INDENT-ON* */
448 
449 /*
450  * Decrypt Post Node
451  */
452 
453 #define foreach_esp_decrypt_post_error \
454  _(PKTS, "ESP post pkts")
455 
456 typedef enum
457 {
458 #define _(sym,str) ESP_DECRYPT_POST_ERROR_##sym,
460 #undef _
463 
465 #define _(sym,string) string,
467 #undef _
468 };
469 
472 
473 static u8 *
474 format_esp_decrypt_post_trace (u8 * s, va_list * args)
475 {
476  CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
477  CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
478  esp_decrypt_trace_t *t = va_arg (*args, esp_decrypt_trace_t *);
479  u32 indent = format_get_indent (s);
480 
481  s = format (s, "cipher %U auth %U\n",
484 
485  ip4_header_t *ih4 = (ip4_header_t *) t->packet_data;
486  if ((ih4->ip_version_and_header_length & 0xF0) == 0x60)
487  s =
488  format (s, "%U%U", format_white_space, indent, format_ip6_header, ih4);
489  else
490  s =
491  format (s, "%U%U", format_white_space, indent, format_ip4_header, ih4);
492 
493  return s;
494 }
495 
498  vlib_node_runtime_t * node,
499  vlib_frame_t * from_frame, int is_ip6)
500 {
501  u32 n_left_from, *from, *to_next = 0, next_index;
502  ipsec_sa_t *sa0;
503  u32 sa_index0 = ~0;
504  ipsec_main_t *im = &ipsec_main;
506 
507  from = vlib_frame_vector_args (from_frame);
508  n_left_from = from_frame->n_vectors;
509 
510  next_index = node->cached_next_index;
511 
512  while (n_left_from > 0)
513  {
514  u32 n_left_to_next;
515 
516  vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
517 
518  while (n_left_from > 0 && n_left_to_next > 0)
519  {
520  esp_footer_t *f0;
521  u32 bi0, iv_size, next0;
522  vlib_buffer_t *b0 = 0;
523  ip4_header_t *ih4 = 0, *oh4 = 0;
524  ip6_header_t *ih6 = 0, *oh6 = 0;
525  crypto_alg_t *cipher_alg, *auth_alg;
526  esp_header_t *esp0;
527  u8 trunc_size, is_aead;
528  u16 udp_encap_adv = 0;
529 
530  next0 = ESP_DECRYPT_NEXT_DROP;
531 
532  bi0 = from[0];
533  from += 1;
534  n_left_from -= 1;
535  n_left_to_next -= 1;
536 
537  b0 = vlib_get_buffer (vm, bi0);
538  esp0 = vlib_buffer_get_current (b0);
539 
540  sa_index0 = vnet_buffer (b0)->ipsec.sad_index;
541  sa0 = pool_elt_at_index (im->sad, sa_index0);
542 
543  to_next[0] = bi0;
544  to_next += 1;
545 
546  cipher_alg = vec_elt_at_index (dcm->cipher_algs, sa0->crypto_alg);
547  auth_alg = vec_elt_at_index (dcm->auth_algs, sa0->integ_alg);
548  is_aead = cipher_alg->type == RTE_CRYPTO_SYM_XFORM_AEAD;
549  if (is_aead)
550  auth_alg = cipher_alg;
551 
552  trunc_size = auth_alg->trunc_size;
553 
554  iv_size = cipher_alg->iv_len;
555 
557  clib_host_to_net_u32 (esp0->seq));
558 
559  /* if UDP encapsulation is used adjust the address of the IP header */
560  if (ipsec_sa_is_set_UDP_ENCAP (sa0)
561  && (b0->flags & VNET_BUFFER_F_IS_IP4))
562  {
563  udp_encap_adv = sizeof (udp_header_t);
564  }
565 
566  if (b0->flags & VNET_BUFFER_F_IS_IP4)
567  ih4 = (ip4_header_t *)
568  ((u8 *) esp0 - udp_encap_adv - sizeof (ip4_header_t));
569  else
570  ih4 = (ip4_header_t *) ((u8 *) esp0 - sizeof (ip6_header_t));
571 
572  vlib_buffer_advance (b0, sizeof (esp_header_t) + iv_size);
573 
574  b0->flags |= VLIB_BUFFER_TOTAL_LENGTH_VALID;
575  f0 = (esp_footer_t *) (vlib_buffer_get_tail (b0) - trunc_size - 2);
576  b0->current_length -= (f0->pad_length + trunc_size + 2);
577 #if 0
578  /* check padding */
579  const u8 *padding = vlib_buffer_get_tail (b0);
580  if (PREDICT_FALSE (memcmp (padding, pad_data, f0->pad_length)))
581  {
582  clib_warning ("bad padding");
583  vlib_node_increment_counter (vm, dpdk_esp_decrypt_node.index,
584  ESP_DECRYPT_ERROR_DECRYPTION_FAILED,
585  1);
586  goto trace;
587  }
588 #endif
589  if (ipsec_sa_is_set_IS_TUNNEL (sa0))
590  {
591  if (f0->next_header == IP_PROTOCOL_IP_IN_IP)
592  next0 = ESP_DECRYPT_NEXT_IP4_INPUT;
593  else if (f0->next_header == IP_PROTOCOL_IPV6)
594  next0 = ESP_DECRYPT_NEXT_IP6_INPUT;
595  else
596  {
597  clib_warning ("next header: 0x%x", f0->next_header);
598  if (is_ip6)
601  ESP_DECRYPT_ERROR_DECRYPTION_FAILED,
602  1);
603  else
606  ESP_DECRYPT_ERROR_DECRYPTION_FAILED,
607  1);
608  goto trace;
609  }
610  }
611  else /* transport mode */
612  {
613  if ((ih4->ip_version_and_header_length & 0xF0) == 0x40)
614  {
615  u16 ih4_len = ip4_header_bytes (ih4);
616  vlib_buffer_advance (b0, -ih4_len - udp_encap_adv);
617  next0 = ESP_DECRYPT_NEXT_IP4_INPUT;
618  if (!ipsec_sa_is_set_UDP_ENCAP (sa0))
619  {
620  oh4 = vlib_buffer_get_current (b0);
621  memmove (oh4, ih4, ih4_len);
622  oh4->protocol = f0->next_header;
623  oh4->length = clib_host_to_net_u16 (b0->current_length);
624  oh4->checksum = ip4_header_checksum (oh4);
625  }
626  }
627  else if ((ih4->ip_version_and_header_length & 0xF0) == 0x60)
628  {
629  ih6 = (ip6_header_t *) ih4;
630  vlib_buffer_advance (b0, -sizeof (ip6_header_t));
631  oh6 = vlib_buffer_get_current (b0);
632  memmove (oh6, ih6, sizeof (ip6_header_t));
633 
634  next0 = ESP_DECRYPT_NEXT_IP6_INPUT;
635  oh6->protocol = f0->next_header;
636  u16 len = b0->current_length - sizeof (ip6_header_t);
637  oh6->payload_length = clib_host_to_net_u16 (len);
638  }
639  else
640  {
641  clib_warning ("next header: 0x%x", f0->next_header);
642  if (is_ip6)
645  ESP_DECRYPT_ERROR_DECRYPTION_FAILED,
646  1);
647  else
650  ESP_DECRYPT_ERROR_DECRYPTION_FAILED,
651  1);
652  goto trace;
653  }
654  }
655 
656  vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
657 
658  trace:
659  if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
660  {
661  esp_decrypt_trace_t *tr =
662  vlib_add_trace (vm, node, b0, sizeof (*tr));
663  tr->crypto_alg = sa0->crypto_alg;
664  tr->integ_alg = sa0->integ_alg;
665  ih4 = vlib_buffer_get_current (b0);
666  clib_memcpy_fast (tr->packet_data, ih4, sizeof (ip6_header_t));
667  }
668 
669  vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
670  to_next, n_left_to_next, bi0,
671  next0);
672  }
673  vlib_put_next_frame (vm, node, next_index, n_left_to_next);
674  }
675 
676  if (is_ip6)
678  ESP_DECRYPT_POST_ERROR_PKTS,
679  from_frame->n_vectors);
680  else
682  ESP_DECRYPT_POST_ERROR_PKTS,
683  from_frame->n_vectors);
684 
685  return from_frame->n_vectors;
686 }
687 
689  vlib_node_runtime_t * node,
690  vlib_frame_t * from_frame)
691 {
692  return dpdk_esp_decrypt_post_inline (vm, node, from_frame, 0 /*is_ip6 */ );
693 }
694 
695 /* *INDENT-OFF* */
697  .name = "dpdk-esp4-decrypt-post",
698  .vector_size = sizeof (u32),
699  .format_trace = format_esp_decrypt_post_trace,
701 
703  .error_strings = esp_decrypt_post_error_strings,
704 
705  .n_next_nodes = ESP_DECRYPT_N_NEXT,
706  .next_nodes = {
707 #define _(s,n) [ESP_DECRYPT_NEXT_##s] = n,
709 #undef _
710  },
711 };
712 /* *INDENT-ON* */
713 
715  vlib_node_runtime_t * node,
716  vlib_frame_t * from_frame)
717 {
718  return dpdk_esp_decrypt_post_inline (vm, node, from_frame, 0 /*is_ip6 */ );
719 }
720 
721 /* *INDENT-OFF* */
723  .name = "dpdk-esp6-decrypt-post",
724  .vector_size = sizeof (u32),
725  .format_trace = format_esp_decrypt_post_trace,
727 
729  .error_strings = esp_decrypt_post_error_strings,
730 
731  .n_next_nodes = ESP_DECRYPT_N_NEXT,
732  .next_nodes = {
733 #define _(s,n) [ESP_DECRYPT_NEXT_##s] = n,
735 #undef _
736  },
737 };
738 /* *INDENT-ON* */
739 
740 /*
741  * fd.io coding-style-patch-verification: ON
742  *
743  * Local Variables:
744  * eval: (c-set-style "gnu")
745  * End:
746  */
u32 alg
Definition: ipsec.h:86
u32 flags
buffer flags: VLIB_BUFFER_FREE_LIST_INDEX_MASK: bits used to store free list index, VLIB_BUFFER_IS_TRACED: trace this buffer.
Definition: buffer.h:124
u8 * format_ipsec_integ_alg(u8 *s, va_list *args)
Definition: ipsec_format.c:110
static_always_inline void crypto_op_setup(u8 is_aead, struct rte_mbuf *mb0, struct rte_crypto_op *op, void *session, u32 cipher_off, u32 cipher_len, u32 auth_off, u32 auth_len, u8 *aad, u8 *digest, u64 digest_paddr)
Definition: ipsec.h:356
static vlib_cli_command_t trace
(constructor) VLIB_CLI_COMMAND (trace)
Definition: vlib_api_cli.c:889
static u8 * vlib_buffer_get_tail(vlib_buffer_t *b)
Get pointer to the end of buffer&#39;s data.
Definition: buffer.h:310
#define CLIB_UNUSED(x)
Definition: clib.h:82
static void vlib_increment_combined_counter(vlib_combined_counter_main_t *cm, u32 thread_index, u32 index, u64 n_packets, u64 n_bytes)
Increment a combined counter.
Definition: counter.h:220
static char * esp_decrypt_post_error_strings[]
Definition: esp_decrypt.c:464
static u8 * format_esp_decrypt_post_trace(u8 *s, va_list *args)
Definition: esp_decrypt.c:474
format_function_t format_ip4_header
Definition: format.h:83
ipsec_integ_alg_t
Definition: ipsec_sa.h:58
i16 current_data
signed offset in data[], pre_data[] that we are currently processing.
Definition: buffer.h:110
unsigned long u64
Definition: types.h:89
#define clib_memcpy_fast(a, b, c)
Definition: string.h:81
#define NULL
Definition: clib.h:58
static_always_inline i32 crypto_alloc_ops(u8 numa, struct rte_crypto_op **ops, u32 n)
Definition: ipsec.h:283
ipsec_integ_alg_t integ_alg
Definition: ipsec_sa.h:150
u32 thread_index
Definition: main.h:218
u16 current_length
Nbytes between current data and the end of this buffer.
Definition: buffer.h:113
static_always_inline void crypto_set_icb(dpdk_gcm_cnt_blk *icb, u32 salt, u32 seq, u32 seq_hi)
Definition: ipsec.h:348
ipsec_crypto_alg_t crypto_alg
Definition: esp_decrypt.c:72
static u32 format_get_indent(u8 *s)
Definition: format.h:72
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:424
#define VLIB_NODE_FN(node)
Definition: node.h:202
esp_decrypt_next_t
Definition: esp_decrypt.c:33
unsigned char u8
Definition: types.h:56
static char * esp_decrypt_error_strings[]
Definition: esp_decrypt.c:62
u32 bi[VLIB_FRAME_SIZE]
Definition: ipsec.h:127
u32 seq_hi
Definition: ipsec_sa.h:119
static_always_inline clib_error_t * crypto_get_session(struct rte_cryptodev_sym_session **session, u32 sa_idx, crypto_resource_t *res, crypto_worker_main_t *cwm, u8 is_outbound)
Definition: ipsec.h:237
static_always_inline void crypto_free_ops(u8 numa, struct rte_crypto_op **ops, u32 n)
Definition: ipsec.h:299
vlib_node_registration_t dpdk_esp4_decrypt_post_node
(constructor) VLIB_REGISTER_NODE (dpdk_esp4_decrypt_post_node)
Definition: esp_decrypt.c:696
#define foreach_esp_decrypt_next
Definition: esp_decrypt.c:29
dpdk_crypto_main_t dpdk_crypto_main
Definition: ipsec.c:25
ipsec_main_t ipsec_main
Definition: ipsec.c:28
#define always_inline
Definition: clib.h:98
#define foreach_esp_decrypt_post_error
Definition: esp_decrypt.c:453
u8 * format_white_space(u8 *s, va_list *va)
Definition: std-formats.c:129
static_always_inline void crypto_enqueue_ops(vlib_main_t *vm, crypto_worker_main_t *cwm, u32 node_index, u32 error, u8 numa, u8 encrypt)
Definition: ipsec.h:311
#define vec_elt_at_index(v, i)
Get vector value at index i checking that i is in bounds.
u8 * format_ipsec_crypto_alg(u8 *s, va_list *args)
Definition: ipsec_format.c:78
unsigned int u32
Definition: types.h:88
u32 padding
Definition: vhost_user.h:141
crypto_alg_t * auth_algs
Definition: ipsec.h:166
static const u8 pad_data[]
Definition: ipsec.h:175
u8 trunc_size
Definition: ipsec.h:89
u32 next
Definition: ipsec.h:63
vl_api_fib_path_type_t type
Definition: fib_types.api:123
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:514
static u8 iv[]
Definition: aes_cbc.c:24
crypto_alg_t * cipher_algs
Definition: ipsec.h:165
u32 salt
Definition: ipsec_sa.h:163
static void ipsec_sa_anti_replay_advance(ipsec_sa_t *sa, u32 seq)
Definition: ipsec_sa.h:379
unsigned short u16
Definition: types.h:57
#define rte_mbuf_from_vlib_buffer(x)
Definition: buffer.h:19
static void * vlib_buffer_get_current(vlib_buffer_t *b)
Get pointer to current data to process.
Definition: buffer.h:229
#define PREDICT_FALSE(x)
Definition: clib.h:111
vlib_node_registration_t dpdk_esp4_decrypt_node
(constructor) VLIB_REGISTER_NODE (dpdk_esp4_decrypt_node)
Definition: esp_decrypt.c:405
static void vlib_prefetch_combined_counter(const vlib_combined_counter_main_t *cm, u32 thread_index, u32 index)
Pre-fetch a per-thread combined counter for the given object index.
Definition: counter.h:235
vlib_node_registration_t dpdk_esp6_decrypt_post_node
(constructor) VLIB_REGISTER_NODE (dpdk_esp6_decrypt_post_node)
Definition: esp_decrypt.c:722
#define vlib_validate_buffer_enqueue_x1(vm, node, next_index, to_next, n_left_to_next, bi0, next0)
Finish enqueueing one buffer forward in the graph.
Definition: buffer_node.h:218
#define vlib_get_next_frame(vm, node, next_index, vectors, n_vectors_left)
Get pointer to next frame vector data by (vlib_node_runtime_t, next_index).
Definition: node_funcs.h:338
u8 encrypt
Definition: ipsec.h:65
static void vlib_node_increment_counter(vlib_main_t *vm, u32 node_index, u32 counter_index, u64 increment)
Definition: node_funcs.h:1150
u8 len
Definition: ip_types.api:90
esp_decrypt_post_error_t
Definition: esp_decrypt.c:456
u8 aad[16]
Definition: ipsec.h:68
#define VLIB_REGISTER_NODE(x,...)
Definition: node.h:169
u16 n_vectors
Definition: node.h:397
static_always_inline uword vlib_get_thread_index(void)
Definition: threads.h:213
#define CLIB_PREFETCH(addr, size, type)
Definition: cache.h:80
vlib_main_t * vm
Definition: buffer.c:323
dpdk_gcm_cnt_blk cb
Definition: ipsec.h:67
static uword dpdk_esp_decrypt_post_inline(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame, int is_ip6)
Definition: esp_decrypt.c:497
#define clib_warning(format, args...)
Definition: error.h:59
static uword dpdk_esp_decrypt_inline(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame, int is_ip6)
Definition: esp_decrypt.c:96
#define ARRAY_LEN(x)
Definition: clib.h:62
void vlib_put_next_frame(vlib_main_t *vm, vlib_node_runtime_t *r, u32 next_index, u32 n_vectors_left)
Release pointer to next frame vector data.
Definition: main.c:456
u8 * format_esp_header(u8 *s, va_list *args)
Definition: esp_format.c:23
u8 iv_len
Definition: ipsec.h:88
vlib_combined_counter_main_t ipsec_sa_counters
SA packet & bytes counters.
Definition: ipsec_sa.c:27
u16 cached_next_index
Next frame index that vector arguments were last enqueued to last time this node ran.
Definition: node.h:515
#define ASSERT(truth)
esp_decrypt_error_t
Definition: esp_decrypt.c:53
u8 icv[32]
Definition: ipsec.h:69
ipsec_sa_t * sad
Definition: ipsec.h:97
crypto_worker_main_t * workers_main
Definition: ipsec.h:162
static int ipsec_sa_anti_replay_check(ipsec_sa_t *sa, u32 seq)
Definition: ipsec_sa.h:252
u32 seq
Definition: esp.h:29
static void vlib_buffer_advance(vlib_buffer_t *b, word l)
Advance current data pointer by the supplied (signed!) amount.
Definition: buffer.h:248
format_function_t format_ip6_header
Definition: format.h:97
u8 boundary
Definition: ipsec.h:90
crypto_resource_t * resource
Definition: ipsec.h:164
static void * vlib_add_trace(vlib_main_t *vm, vlib_node_runtime_t *r, vlib_buffer_t *b, u32 n_data_bytes)
Definition: trace_funcs.h:55
struct _vlib_node_registration vlib_node_registration_t
Definition: defs.h:47
vlib_node_registration_t dpdk_esp6_decrypt_node
(constructor) VLIB_REGISTER_NODE (dpdk_esp6_decrypt_node)
Definition: esp_decrypt.c:431
VLIB buffer representation.
Definition: buffer.h:102
u64 uword
Definition: types.h:112
static void * vlib_frame_vector_args(vlib_frame_t *f)
Get pointer to frame vector data.
Definition: node_funcs.h:244
ipsec_crypto_alg_t
Definition: ipsec_sa.h:36
struct rte_crypto_op ** ops
Definition: ipsec.h:75
static u8 * format_esp_decrypt_trace(u8 *s, va_list *args)
Definition: esp_decrypt.c:80
enum rte_crypto_sym_xform_type type
Definition: ipsec.h:85
#define vnet_buffer(b)
Definition: buffer.h:365
static_always_inline u16 get_resource(crypto_worker_main_t *cwm, ipsec_sa_t *sa)
Definition: ipsec.h:258
ipsec_crypto_alg_t crypto_alg
Definition: ipsec_sa.h:146
static int ip4_header_bytes(const ip4_header_t *i)
Definition: ip4_packet.h:235
u8 ip_version_and_header_length
Definition: ip4_packet.h:138
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:59
#define foreach_esp_decrypt_error
Definition: esp_decrypt.c:42
struct rte_crypto_op * ops[VLIB_FRAME_SIZE]
Definition: ipsec.h:126
static vlib_buffer_t * vlib_get_buffer(vlib_main_t *vm, u32 buffer_index)
Translate buffer index into buffer pointer.
Definition: buffer_funcs.h:85
static u16 ip4_header_checksum(ip4_header_t *i)
Definition: ip4_packet.h:247
ipsec_integ_alg_t integ_alg
Definition: esp_decrypt.c:73
static_always_inline dpdk_op_priv_t * crypto_op_get_priv(struct rte_crypto_op *op)
Definition: ipsec.h:207