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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 decrypt failed (queue full)") \
48  _(DISCARD, "Not enough crypto operations") \
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 {
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 
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;
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, n_left_from);
125  else
127  ESP_DECRYPT_ERROR_DISCARD, n_left_from);
128  /* Discard whole frame */
129  vlib_buffer_free (vm, from, n_left_from);
130  return n_left_from;
131  }
132 
133  next_index = ESP_DECRYPT_NEXT_DROP;
134 
135  while (n_left_from > 0)
136  {
137  u32 n_left_to_next;
138 
139  vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
140 
141  while (n_left_from > 0 && n_left_to_next > 0)
142  {
143  clib_error_t *error;
144  u32 bi0, sa_index0, iv_size;
145  u8 trunc_size;
146  vlib_buffer_t *b0;
147  esp_header_t *esp0;
148  struct rte_mbuf *mb0;
149  struct rte_crypto_op *op;
150  u16 res_idx;
151 
152  bi0 = from[0];
153  from += 1;
154  n_left_from -= 1;
155 
156  b0 = vlib_get_buffer (vm, bi0);
157  mb0 = rte_mbuf_from_vlib_buffer (b0);
158  esp0 = vlib_buffer_get_current (b0);
159 
160  /* ih0/ih6_0 */
161  CLIB_PREFETCH (esp0, sizeof (esp0[0]) + 16, LOAD);
162  /* mb0 */
163  CLIB_PREFETCH (mb0, CLIB_CACHE_LINE_BYTES, STORE);
164 
165  op = ops[0];
166  ops += 1;
167  ASSERT (op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED);
168 
169  dpdk_op_priv_t *priv = crypto_op_get_priv (op);
170  /* store bi in op private */
171  priv->bi = bi0;
172  priv->encrypt = 0;
173 
174  u16 op_len =
175  sizeof (op[0]) + sizeof (op[0].sym[0]) + sizeof (priv[0]);
176  CLIB_PREFETCH (op, op_len, STORE);
177 
178  sa_index0 = vnet_buffer (b0)->ipsec.sad_index;
180  thread_index, sa_index0);
181 
182  if (sa_index0 != last_sa_index)
183  {
184  sa0 = pool_elt_at_index (im->sad, sa_index0);
185 
186  cipher_alg =
188  auth_alg = vec_elt_at_index (dcm->auth_algs, sa0->integ_alg);
189 
190  is_aead = (cipher_alg->type == RTE_CRYPTO_SYM_XFORM_AEAD);
191  if (is_aead)
192  auth_alg = cipher_alg;
193 
194  res_idx = get_resource (cwm, sa0);
195 
196  if (PREDICT_FALSE (res_idx == (u16) ~ 0))
197  {
198  if (is_ip6)
201  ESP_DECRYPT_ERROR_NOSUP, 1);
202  else
205  ESP_DECRYPT_ERROR_NOSUP, 1);
206  to_next[0] = bi0;
207  to_next += 1;
208  n_left_to_next -= 1;
209  goto trace;
210  }
211  res = vec_elt_at_index (dcm->resource, res_idx);
212 
213  error = crypto_get_session (&session, sa_index0, res, cwm, 0);
214  if (PREDICT_FALSE (error || !session))
215  {
216  if (is_ip6)
219  ESP_DECRYPT_ERROR_SESSION,
220  1);
221  else
224  ESP_DECRYPT_ERROR_SESSION,
225  1);
226  to_next[0] = bi0;
227  to_next += 1;
228  n_left_to_next -= 1;
229  goto trace;
230  }
231 
232  last_sa_index = sa_index0;
233  }
234 
235  /* anti-replay check */
237  (sa0, clib_host_to_net_u32 (esp0->seq)))
238  {
239  if (is_ip6)
242  ESP_DECRYPT_ERROR_REPLAY, 1);
243  else
246  ESP_DECRYPT_ERROR_REPLAY, 1);
247  to_next[0] = bi0;
248  to_next += 1;
249  n_left_to_next -= 1;
250  goto trace;
251  }
252 
253  if (is_ip6)
254  priv->next = DPDK_CRYPTO_INPUT_NEXT_DECRYPT6_POST;
255  else
256  {
257  priv->next = DPDK_CRYPTO_INPUT_NEXT_DECRYPT4_POST;
258  b0->flags |= VNET_BUFFER_F_IS_IP4;
259  }
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  if (is_ip6)
288  ESP_DECRYPT_ERROR_BAD_LEN, 1);
289  else
291  ESP_DECRYPT_ERROR_BAD_LEN, 1);
292  res->n_ops -= 1;
293  to_next[0] = bi0;
294  to_next += 1;
295  n_left_to_next -= 1;
296  goto trace;
297  }
298 
299  u32 cipher_off, cipher_len;
300  u32 auth_len = 0;
301  u8 *aad = NULL;
302 
303  u8 *iv = (u8 *) (esp0 + 1);
304 
305  dpdk_gcm_cnt_blk *icb = &priv->cb;
306 
307  cipher_off = sizeof (esp_header_t) + iv_size;
308  cipher_len = payload_len;
309 
310  u8 *digest = vlib_buffer_get_tail (b0) - trunc_size;
311  u64 digest_paddr =
312  mb0->buf_physaddr + digest - ((u8 *) mb0->buf_addr);
313 
314  if (!is_aead && cipher_alg->alg == RTE_CRYPTO_CIPHER_AES_CBC)
315  clib_memcpy_fast (icb, iv, 16);
316  else /* CTR/GCM */
317  {
318  u32 *_iv = (u32 *) iv;
319 
320  crypto_set_icb (icb, sa0->salt, _iv[0], _iv[1]);
321  }
322 
323  if (is_aead)
324  {
325  aad = priv->aad;
326  u32 *_aad = (u32 *) aad;
327  clib_memcpy_fast (aad, esp0, 8);
328 
329  /* _aad[3] should always be 0 */
330  if (PREDICT_FALSE (ipsec_sa_is_set_USE_ESN (sa0)))
331  {
332  _aad[2] = _aad[1];
333  _aad[1] = clib_host_to_net_u32 (sa0->seq_hi);
334  }
335  else
336  _aad[2] = 0;
337  }
338  else
339  {
340  auth_len = sizeof (esp_header_t) + iv_size + payload_len;
341 
342  if (ipsec_sa_is_set_USE_ESN (sa0))
343  {
344  clib_memcpy_fast (priv->icv, digest, trunc_size);
345  u32 *_digest = (u32 *) digest;
346  _digest[0] = clib_host_to_net_u32 (sa0->seq_hi);
347  auth_len += sizeof (sa0->seq_hi);
348 
349  digest = priv->icv;
350  digest_paddr =
351  op->phys_addr + (uintptr_t) priv->icv - (uintptr_t) op;
352  }
353  }
354 
355  crypto_op_setup (is_aead, mb0, op, session, cipher_off, cipher_len,
356  0, auth_len, aad, digest, digest_paddr);
357  trace:
358  if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
359  {
360  esp_decrypt_trace_t *tr =
361  vlib_add_trace (vm, node, b0, sizeof (*tr));
362  tr->crypto_alg = sa0->crypto_alg;
363  tr->integ_alg = sa0->integ_alg;
365  sizeof (esp_header_t));
366  }
367  }
368  vlib_put_next_frame (vm, node, next_index, n_left_to_next);
369  }
370 
371  if (is_ip6)
372  {
374  ESP_DECRYPT_ERROR_RX_PKTS,
375  from_frame->n_vectors);
376 
378  ESP_DECRYPT_ERROR_ENQ_FAIL, numa, 0 /* encrypt */ );
379  }
380  else
381  {
383  ESP_DECRYPT_ERROR_RX_PKTS,
384  from_frame->n_vectors);
385 
387  ESP_DECRYPT_ERROR_ENQ_FAIL, numa, 0 /* encrypt */ );
388  }
389 
390  crypto_free_ops (numa, ops, cwm->ops + from_frame->n_vectors - ops);
391 
392  return from_frame->n_vectors;
393 }
394 
397  vlib_frame_t * from_frame)
398 {
399  return dpdk_esp_decrypt_inline (vm, node, from_frame, 0 /*is_ip6 */ );
400 }
401 
402 /* *INDENT-OFF* */
404  .name = "dpdk-esp4-decrypt",
405  .vector_size = sizeof (u32),
406  .format_trace = format_esp_decrypt_trace,
408 
410  .error_strings = esp_decrypt_error_strings,
411 
412  .n_next_nodes = ESP_DECRYPT_N_NEXT,
413  .next_nodes = {
414 #define _(s,n) [ESP_DECRYPT_NEXT_##s] = n,
416 #undef _
417  },
418 };
419 /* *INDENT-ON* */
420 
423  vlib_frame_t * from_frame)
424 {
425  return dpdk_esp_decrypt_inline (vm, node, from_frame, 1 /*is_ip6 */ );
426 }
427 
428 /* *INDENT-OFF* */
430  .name = "dpdk-esp6-decrypt",
431  .vector_size = sizeof (u32),
432  .format_trace = format_esp_decrypt_trace,
434 
436  .error_strings = esp_decrypt_error_strings,
437 
438  .n_next_nodes = ESP_DECRYPT_N_NEXT,
439  .next_nodes = {
440 #define _(s,n) [ESP_DECRYPT_NEXT_##s] = n,
442 #undef _
443  },
444 };
445 /* *INDENT-ON* */
446 
447 /*
448  * Decrypt Post Node
449  */
450 
451 #define foreach_esp_decrypt_post_error \
452  _(PKTS, "ESP post pkts")
453 
454 typedef enum
455 {
456 #define _(sym,str) ESP_DECRYPT_POST_ERROR_##sym,
458 #undef _
461 
463 #define _(sym,string) string,
465 #undef _
466 };
467 
470 
471 static u8 *
472 format_esp_decrypt_post_trace (u8 * s, va_list * args)
473 {
474  CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
475  CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
476  esp_decrypt_trace_t *t = va_arg (*args, esp_decrypt_trace_t *);
477  u32 indent = format_get_indent (s);
478 
479  s = format (s, "cipher %U auth %U\n",
482 
483  ip4_header_t *ih4 = (ip4_header_t *) t->packet_data;
484  if ((ih4->ip_version_and_header_length & 0xF0) == 0x60)
485  s =
486  format (s, "%U%U", format_white_space, indent, format_ip6_header, ih4);
487  else
488  s =
489  format (s, "%U%U", format_white_space, indent, format_ip4_header, ih4);
490 
491  return s;
492 }
493 
497  vlib_frame_t * from_frame, int is_ip6)
498 {
499  u32 n_left_from, *from, *to_next = 0, next_index;
500  ipsec_sa_t *sa0;
501  u32 sa_index0 = ~0;
502  ipsec_main_t *im = &ipsec_main;
504 
505  from = vlib_frame_vector_args (from_frame);
506  n_left_from = from_frame->n_vectors;
507 
508  next_index = node->cached_next_index;
509 
510  while (n_left_from > 0)
511  {
512  u32 n_left_to_next;
513 
514  vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
515 
516  while (n_left_from > 0 && n_left_to_next > 0)
517  {
518  esp_footer_t *f0;
519  u32 bi0, iv_size, next0;
520  vlib_buffer_t *b0 = 0;
521  ip4_header_t *ih4 = 0, *oh4 = 0;
522  ip6_header_t *ih6 = 0, *oh6 = 0;
523  crypto_alg_t *cipher_alg, *auth_alg;
524  esp_header_t *esp0;
525  u8 trunc_size, is_aead;
526  u16 udp_encap_adv = 0;
527 
528  next0 = ESP_DECRYPT_NEXT_DROP;
529 
530  bi0 = from[0];
531  from += 1;
532  n_left_from -= 1;
533  n_left_to_next -= 1;
534 
535  b0 = vlib_get_buffer (vm, bi0);
536  esp0 = vlib_buffer_get_current (b0);
537 
538  sa_index0 = vnet_buffer (b0)->ipsec.sad_index;
539  sa0 = pool_elt_at_index (im->sad, sa_index0);
540 
541  to_next[0] = bi0;
542  to_next += 1;
543 
544  cipher_alg = vec_elt_at_index (dcm->cipher_algs, sa0->crypto_alg);
545  auth_alg = vec_elt_at_index (dcm->auth_algs, sa0->integ_alg);
546  is_aead = cipher_alg->type == RTE_CRYPTO_SYM_XFORM_AEAD;
547  if (is_aead)
548  auth_alg = cipher_alg;
549 
550  trunc_size = auth_alg->trunc_size;
551 
552  iv_size = cipher_alg->iv_len;
553 
555  clib_host_to_net_u32 (esp0->seq));
556 
557  /* if UDP encapsulation is used adjust the address of the IP header */
558  if (ipsec_sa_is_set_UDP_ENCAP (sa0)
559  && (b0->flags & VNET_BUFFER_F_IS_IP4))
560  {
561  udp_encap_adv = sizeof (udp_header_t);
562  }
563 
564  if (b0->flags & VNET_BUFFER_F_IS_IP4)
565  ih4 = (ip4_header_t *)
566  ((u8 *) esp0 - udp_encap_adv - sizeof (ip4_header_t));
567  else
568  ih4 = (ip4_header_t *) ((u8 *) esp0 - sizeof (ip6_header_t));
569 
570  vlib_buffer_advance (b0, sizeof (esp_header_t) + iv_size);
571 
572  b0->flags |= VLIB_BUFFER_TOTAL_LENGTH_VALID;
573  f0 = (esp_footer_t *) (vlib_buffer_get_tail (b0) - trunc_size - 2);
574  b0->current_length -= (f0->pad_length + trunc_size + 2);
575 #if 0
576  /* check padding */
577  const u8 *padding = vlib_buffer_get_tail (b0);
578  if (PREDICT_FALSE (memcmp (padding, pad_data, f0->pad_length)))
579  {
580  clib_warning ("bad padding");
581  vlib_node_increment_counter (vm, dpdk_esp_decrypt_node.index,
582  ESP_DECRYPT_ERROR_DECRYPTION_FAILED,
583  1);
584  goto trace;
585  }
586 #endif
587  if (ipsec_sa_is_set_IS_TUNNEL (sa0))
588  {
589  if (f0->next_header == IP_PROTOCOL_IP_IN_IP)
590  next0 = ESP_DECRYPT_NEXT_IP4_INPUT;
591  else if (f0->next_header == IP_PROTOCOL_IPV6)
592  next0 = ESP_DECRYPT_NEXT_IP6_INPUT;
593  else
594  {
595  clib_warning ("next header: 0x%x", f0->next_header);
596  if (is_ip6)
599  ESP_DECRYPT_ERROR_DECRYPTION_FAILED,
600  1);
601  else
604  ESP_DECRYPT_ERROR_DECRYPTION_FAILED,
605  1);
606  goto trace;
607  }
608  }
609  else /* transport mode */
610  {
611  if ((ih4->ip_version_and_header_length & 0xF0) == 0x40)
612  {
613  u16 ih4_len = ip4_header_bytes (ih4);
614  vlib_buffer_advance (b0, -ih4_len);
615  next0 = ESP_DECRYPT_NEXT_IP4_INPUT;
616 
617  oh4 = vlib_buffer_get_current (b0);
618  memmove (oh4, ih4, ih4_len);
619  oh4->protocol = f0->next_header;
620  oh4->length = clib_host_to_net_u16 (b0->current_length);
621  oh4->checksum = ip4_header_checksum (oh4);
622  }
623  else if ((ih4->ip_version_and_header_length & 0xF0) == 0x60)
624  {
625  ih6 = (ip6_header_t *) ih4;
626  vlib_buffer_advance (b0, -sizeof (ip6_header_t));
627  oh6 = vlib_buffer_get_current (b0);
628  memmove (oh6, ih6, sizeof (ip6_header_t));
629 
630  next0 = ESP_DECRYPT_NEXT_IP6_INPUT;
631  oh6->protocol = f0->next_header;
632  u16 len = b0->current_length - sizeof (ip6_header_t);
633  oh6->payload_length = clib_host_to_net_u16 (len);
634  }
635  else
636  {
637  clib_warning ("next header: 0x%x", f0->next_header);
638  if (is_ip6)
641  ESP_DECRYPT_ERROR_DECRYPTION_FAILED,
642  1);
643  else
646  ESP_DECRYPT_ERROR_DECRYPTION_FAILED,
647  1);
648  goto trace;
649  }
650  }
651 
652  vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
653 
654  trace:
655  if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
656  {
657  esp_decrypt_trace_t *tr =
658  vlib_add_trace (vm, node, b0, sizeof (*tr));
659  tr->crypto_alg = sa0->crypto_alg;
660  tr->integ_alg = sa0->integ_alg;
661  ih4 = vlib_buffer_get_current (b0);
662  clib_memcpy_fast (tr->packet_data, ih4, sizeof (ip6_header_t));
663  }
664 
665  vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
666  to_next, n_left_to_next, bi0,
667  next0);
668  }
669  vlib_put_next_frame (vm, node, next_index, n_left_to_next);
670  }
671 
672  if (is_ip6)
674  ESP_DECRYPT_POST_ERROR_PKTS,
675  from_frame->n_vectors);
676  else
678  ESP_DECRYPT_POST_ERROR_PKTS,
679  from_frame->n_vectors);
680 
681  return from_frame->n_vectors;
682 }
683 
686  vlib_frame_t * from_frame)
687 {
688  return dpdk_esp_decrypt_post_inline (vm, node, from_frame, 0 /*is_ip6 */ );
689 }
690 
691 /* *INDENT-OFF* */
693  .name = "dpdk-esp4-decrypt-post",
694  .vector_size = sizeof (u32),
695  .format_trace = format_esp_decrypt_post_trace,
697 
699  .error_strings = esp_decrypt_post_error_strings,
700 
701  .n_next_nodes = ESP_DECRYPT_N_NEXT,
702  .next_nodes = {
703 #define _(s,n) [ESP_DECRYPT_NEXT_##s] = n,
705 #undef _
706  },
707 };
708 /* *INDENT-ON* */
709 
712  vlib_frame_t * from_frame)
713 {
714  return dpdk_esp_decrypt_post_inline (vm, node, from_frame, 0 /*is_ip6 */ );
715 }
716 
717 /* *INDENT-OFF* */
719  .name = "dpdk-esp6-decrypt-post",
720  .vector_size = sizeof (u32),
721  .format_trace = format_esp_decrypt_post_trace,
723 
725  .error_strings = esp_decrypt_post_error_strings,
726 
727  .n_next_nodes = ESP_DECRYPT_N_NEXT,
728  .next_nodes = {
729 #define _(s,n) [ESP_DECRYPT_NEXT_##s] = n,
731 #undef _
732  },
733 };
734 /* *INDENT-ON* */
735 
736 /*
737  * fd.io coding-style-patch-verification: ON
738  *
739  * Local Variables:
740  * eval: (c-set-style "gnu")
741  * End:
742  */
u32 alg
Definition: ipsec.h:87
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:357
static vlib_cli_command_t trace
(constructor) VLIB_CLI_COMMAND (trace)
Definition: vlib_api_cli.c:899
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:87
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 void vlib_buffer_free(vlib_main_t *vm, u32 *buffers, u32 n_buffers)
Free buffers Frees the entire buffer chain for each buffer.
Definition: buffer_funcs.h:937
static char * esp_decrypt_post_error_strings[]
Definition: esp_decrypt.c:462
static u8 * format_esp_decrypt_post_trace(u8 *s, va_list *args)
Definition: esp_decrypt.c:472
format_function_t format_ip4_header
Definition: format.h:81
ipsec_integ_alg_t
Definition: ipsec_sa.h:59
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
static_always_inline i32 crypto_alloc_ops(u8 numa, struct rte_crypto_op **ops, u32 n)
Definition: ipsec.h:284
ipsec_integ_alg_t integ_alg
Definition: ipsec_sa.h:171
#define thread_idx
Definition: tls_async.c:40
u32 thread_index
Definition: main.h:249
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:349
ipsec_crypto_alg_t crypto_alg
Definition: esp_decrypt.c:73
static u32 format_get_indent(u8 *s)
Definition: format.h:72
vlib_main_t * vm
Definition: in2out_ed.c:1582
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:424
#define VLIB_NODE_FN(node)
Definition: node.h:202
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:128
u32 seq_hi
Definition: ipsec_sa.h:122
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:238
static_always_inline void crypto_free_ops(u8 numa, struct rte_crypto_op **ops, u32 n)
Definition: ipsec.h:300
vlib_node_registration_t dpdk_esp4_decrypt_post_node
(constructor) VLIB_REGISTER_NODE (dpdk_esp4_decrypt_post_node)
Definition: esp_decrypt.c:692
#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
esp_decrypt_next_t
Definition: esp_decrypt.c:35
#define foreach_esp_decrypt_post_error
Definition: esp_decrypt.c:451
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:312
#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
esp_decrypt_error_t
Definition: esp_decrypt.c:54
u32 padding
Definition: vhost_user.h:105
crypto_alg_t * auth_algs
Definition: ipsec.h:167
static const u8 pad_data[]
Definition: ipsec.h:176
u8 trunc_size
Definition: ipsec.h:90
bool is_ip6
Definition: ip.api:43
u32 next
Definition: ipsec.h:64
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:534
static u8 iv[]
Definition: aes_cbc.c:24
crypto_alg_t * cipher_algs
Definition: ipsec.h:166
u32 salt
Definition: ipsec_sa.h:184
static void ipsec_sa_anti_replay_advance(ipsec_sa_t *sa, u32 seq)
Definition: ipsec_sa.h:425
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:120
#define always_inline
Definition: ipsec.h:28
vlib_node_registration_t dpdk_esp4_decrypt_node
(constructor) VLIB_REGISTER_NODE (dpdk_esp4_decrypt_node)
Definition: esp_decrypt.c:403
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:718
#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:224
#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:391
u8 encrypt
Definition: ipsec.h:66
static void vlib_node_increment_counter(vlib_main_t *vm, u32 node_index, u32 counter_index, u64 increment)
Definition: node_funcs.h:1231
u8 len
Definition: ip_types.api:92
esp_decrypt_post_error_t
Definition: esp_decrypt.c:454
u8 aad[16]
Definition: ipsec.h:69
#define VLIB_REGISTER_NODE(x,...)
Definition: node.h:169
u16 n_vectors
Definition: node.h:396
static_always_inline uword vlib_get_thread_index(void)
Definition: threads.h:219
#define CLIB_PREFETCH(addr, size, type)
Definition: cache.h:80
dpdk_gcm_cnt_blk cb
Definition: ipsec.h:68
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:495
#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:67
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:483
vlib_main_t vlib_node_runtime_t * node
Definition: in2out_ed.c:1582
u8 * format_esp_header(u8 *s, va_list *args)
Definition: esp_format.c:23
u8 iv_len
Definition: ipsec.h:89
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:510
#define ASSERT(truth)
u8 icv[32]
Definition: ipsec.h:70
ipsec_sa_t * sad
Definition: ipsec.h:107
crypto_worker_main_t * workers_main
Definition: ipsec.h:163
static int ipsec_sa_anti_replay_check(ipsec_sa_t *sa, u32 seq)
Definition: ipsec_sa.h:298
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:95
u8 boundary
Definition: ipsec.h:91
crypto_resource_t * resource
Definition: ipsec.h:165
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:429
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:297
ipsec_crypto_alg_t
Definition: ipsec_sa.h:37
struct rte_crypto_op ** ops
Definition: ipsec.h:76
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:86
#define vnet_buffer(b)
Definition: buffer.h:417
static_always_inline u16 get_resource(crypto_worker_main_t *cwm, ipsec_sa_t *sa)
Definition: ipsec.h:259
ipsec_crypto_alg_t crypto_alg
Definition: ipsec_sa.h:167
void * vlib_add_trace(vlib_main_t *vm, vlib_node_runtime_t *r, vlib_buffer_t *b, u32 n_data_bytes)
Definition: trace.c:577
static int ip4_header_bytes(const ip4_header_t *i)
Definition: ip4_packet.h:190
u8 ip_version_and_header_length
Definition: ip4_packet.h:93
#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:127
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:314
ipsec_integ_alg_t integ_alg
Definition: esp_decrypt.c:74
static_always_inline dpdk_op_priv_t * crypto_op_get_priv(struct rte_crypto_op *op)
Definition: ipsec.h:208