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Vector Packet Processing
esp_encrypt.c
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1 /*
2  * esp_encrypt.c : IPSec ESP encrypt 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 copy 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 <vnet/udp/udp.h>
25 #include <dpdk/buffer.h>
26 #include <dpdk/ipsec/ipsec.h>
27 #include <dpdk/device/dpdk.h>
28 #include <dpdk/device/dpdk_priv.h>
29 
30 #define foreach_esp_encrypt_next \
31 _(DROP, "error-drop") \
32 _(IP4_LOOKUP, "ip4-lookup") \
33 _(IP6_LOOKUP, "ip6-lookup") \
34 _(INTERFACE_OUTPUT, "interface-output")
35 
36 #define _(v, s) ESP_ENCRYPT_NEXT_##v,
37 typedef enum
38 {
40 #undef _
43 
44 #define foreach_esp_encrypt_error \
45  _(RX_PKTS, "ESP pkts received") \
46  _(SEQ_CYCLED, "Sequence number cycled") \
47  _(ENQ_FAIL, "Enqueue failed to crypto device") \
48  _(DISCARD, "Not enough crypto operations, discarding frame") \
49  _(SESSION, "Failed to get crypto session") \
50  _(NOSUP, "Cipher/Auth not supported")
51 
52 
53 typedef enum
54 {
55 #define _(sym,str) ESP_ENCRYPT_ERROR_##sym,
57 #undef _
60 
61 static char *esp_encrypt_error_strings[] = {
62 #define _(sym,string) string,
64 #undef _
65 };
66 
69 
70 typedef struct
71 {
72  ipsec_crypto_alg_t crypto_alg;
73  ipsec_integ_alg_t integ_alg;
74  u8 packet_data[64];
76 
77 /* packet trace format function */
78 static u8 *
79 format_esp_encrypt_trace (u8 * s, va_list * args)
80 {
81  CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
82  CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
83  esp_encrypt_trace_t *t = va_arg (*args, esp_encrypt_trace_t *);
85  u32 indent = format_get_indent (s), offset;
86 
87  s = format (s, "cipher %U auth %U\n",
90 
91  if ((ih4->ip_version_and_header_length & 0xF0) == 0x60)
92  {
93  s = format (s, "%U%U", format_white_space, indent,
94  format_ip6_header, ih4);
95  offset = sizeof (ip6_header_t);
96  }
97  else
98  {
99  s = format (s, "%U%U", format_white_space, indent,
100  format_ip4_header, ih4);
101  offset = ip4_header_bytes (ih4);
102  }
103 
104  s = format (s, "\n%U%U", format_white_space, indent,
106 
107  return s;
108 }
109 
112  vlib_node_runtime_t * node,
113  vlib_frame_t * from_frame, int is_ip6, int is_tun)
114 {
115  u32 n_left_from, *from, *to_next, next_index, thread_index;
116  ipsec_main_t *im = &ipsec_main;
117  vnet_main_t *vnm = im->vnet_main;
119  u32 thread_idx = vlib_get_thread_index ();
121  crypto_resource_t *res = 0;
122  ipsec_sa_t *sa0 = 0;
123  crypto_alg_t *cipher_alg = 0, *auth_alg = 0;
124  struct rte_cryptodev_sym_session *session = 0;
125  u32 ret, last_sa_index = ~0;
126  u8 numa = rte_socket_id ();
127  u8 is_aead = 0;
128  crypto_worker_main_t *cwm =
129  vec_elt_at_index (dcm->workers_main, thread_idx);
130  struct rte_crypto_op **ops = cwm->ops;
131 
132  from = vlib_frame_vector_args (from_frame);
133  n_left_from = from_frame->n_vectors;
134  thread_index = vm->thread_index;
135 
136  ret = crypto_alloc_ops (numa, ops, n_left_from);
137  if (ret)
138  {
139  if (is_ip6)
141  ESP_ENCRYPT_ERROR_DISCARD, 1);
142  else
144  ESP_ENCRYPT_ERROR_DISCARD, 1);
145  /* Discard whole frame */
146  return n_left_from;
147  }
148 
149  next_index = ESP_ENCRYPT_NEXT_DROP;
150 
151  while (n_left_from > 0)
152  {
153  u32 n_left_to_next;
154 
155  vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
156 
157  while (n_left_from > 0 && n_left_to_next > 0)
158  {
159  clib_error_t *error;
160  u32 bi0, bi1;
161  vlib_buffer_t *b0, *b1;
162  u32 sa_index0;
163  ip4_and_esp_header_t *ih0, *oh0 = 0;
164  ip6_and_esp_header_t *ih6_0, *oh6_0 = 0;
165  ip4_and_udp_and_esp_header_t *ouh0 = 0;
166  esp_header_t *esp0;
167  esp_footer_t *f0;
168  u8 next_hdr_type;
169  u32 iv_size;
170  u16 orig_sz;
171  u8 trunc_size;
172  u16 rewrite_len;
173  u16 udp_encap_adv = 0;
174  struct rte_mbuf *mb0;
175  struct rte_crypto_op *op;
176  u16 res_idx;
177 
178  bi0 = from[0];
179  from += 1;
180  n_left_from -= 1;
181 
182  b0 = vlib_get_buffer (vm, bi0);
183  ih0 = vlib_buffer_get_current (b0);
184  mb0 = rte_mbuf_from_vlib_buffer (b0);
185 
186  /* ih0/ih6_0 */
187  CLIB_PREFETCH (ih0, sizeof (ih6_0[0]), LOAD);
188  /* f0 */
189  CLIB_PREFETCH (vlib_buffer_get_tail (b0), 20, STORE);
190  /* mb0 */
191  CLIB_PREFETCH (mb0, CLIB_CACHE_LINE_BYTES, STORE);
192 
193  if (n_left_from > 1)
194  {
195  bi1 = from[1];
196  b1 = vlib_get_buffer (vm, bi1);
197 
200  CLIB_CACHE_LINE_BYTES, STORE);
201  }
202 
203  op = ops[0];
204  ops += 1;
205  ASSERT (op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED);
206 
207  dpdk_op_priv_t *priv = crypto_op_get_priv (op);
208  /* store bi in op private */
209  priv->bi = bi0;
210  priv->encrypt = 1;
211 
212  u16 op_len =
213  sizeof (op[0]) + sizeof (op[0].sym[0]) + sizeof (priv[0]);
214  CLIB_PREFETCH (op, op_len, STORE);
215 
216  if (is_tun)
217  {
218  u32 tmp;
219  /* we are on a ipsec tunnel's feature arc */
220  sa_index0 = *(u32 *) vnet_feature_next_with_data (&tmp, b0,
221  sizeof
222  (sa_index0));
223  }
224  else
225  sa_index0 = vnet_buffer (b0)->ipsec.sad_index;
226 
227  if (sa_index0 != last_sa_index)
228  {
229  sa0 = pool_elt_at_index (im->sad, sa_index0);
230 
231  cipher_alg =
233  auth_alg = vec_elt_at_index (dcm->auth_algs, sa0->integ_alg);
234 
235  is_aead = (cipher_alg->type == RTE_CRYPTO_SYM_XFORM_AEAD);
236 
237  if (is_aead)
238  auth_alg = cipher_alg;
239 
240  res_idx = get_resource (cwm, sa0);
241 
242  if (PREDICT_FALSE (res_idx == (u16) ~ 0))
243  {
244  clib_warning ("unsupported SA by thread index %u",
245  thread_idx);
246  if (is_ip6)
249  ESP_ENCRYPT_ERROR_NOSUP, 1);
250  else
253  ESP_ENCRYPT_ERROR_NOSUP, 1);
254  to_next[0] = bi0;
255  to_next += 1;
256  n_left_to_next -= 1;
257  goto trace;
258  }
259  res = vec_elt_at_index (dcm->resource, res_idx);
260 
261  error = crypto_get_session (&session, sa_index0, res, cwm, 1);
262  if (PREDICT_FALSE (error || !session))
263  {
264  clib_warning ("failed to get crypto session");
265  if (is_ip6)
268  ESP_ENCRYPT_ERROR_SESSION,
269  1);
270  else
273  ESP_ENCRYPT_ERROR_SESSION,
274  1);
275  to_next[0] = bi0;
276  to_next += 1;
277  n_left_to_next -= 1;
278  goto trace;
279  }
280 
281  last_sa_index = sa_index0;
282  }
283 
284  if (PREDICT_FALSE (esp_seq_advance (sa0)))
285  {
287  ("sequence number counter has cycled SPI %u (0x%08x)",
288  sa0->spi, sa0->spi);
289  if (is_ip6)
292  ESP_ENCRYPT_ERROR_SEQ_CYCLED, 1);
293  else
296  ESP_ENCRYPT_ERROR_SEQ_CYCLED, 1);
297  //TODO: rekey SA
298  to_next[0] = bi0;
299  to_next += 1;
300  n_left_to_next -= 1;
301  goto trace;
302  }
303 
304  orig_sz = b0->current_length;
305 
306  /* TODO multi-seg support - total_length_not_including_first_buffer */
308  (&ipsec_sa_counters, thread_index, sa_index0,
309  1, b0->current_length);
310 
311  /* Update tunnel interface tx counters */
312  if (is_tun)
315  thread_index, vnet_buffer (b0)->sw_if_index[VLIB_TX],
316  1, b0->current_length);
317 
318  res->ops[res->n_ops] = op;
319  res->bi[res->n_ops] = bi0;
320  res->n_ops += 1;
321 
322  dpdk_gcm_cnt_blk *icb = &priv->cb;
323 
324  crypto_set_icb (icb, sa0->salt, sa0->seq, sa0->seq_hi);
325 
326  iv_size = cipher_alg->iv_len;
327  trunc_size = auth_alg->trunc_size;
328 
329  /* if UDP encapsulation is used adjust the address of the IP header */
330  if (ipsec_sa_is_set_UDP_ENCAP (sa0) && !is_ip6)
331  udp_encap_adv = sizeof (udp_header_t);
332 
333  if (ipsec_sa_is_set_IS_TUNNEL (sa0))
334  {
335  rewrite_len = 0;
336  if (!ipsec_sa_is_set_IS_TUNNEL_V6 (sa0)) /* ip4 */
337  {
338  /* in tunnel mode send it back to FIB */
339  priv->next = DPDK_CRYPTO_INPUT_NEXT_IP4_LOOKUP;
340  u8 adv = sizeof (ip4_header_t) + udp_encap_adv +
341  sizeof (esp_header_t) + iv_size;
342  vlib_buffer_advance (b0, -adv);
343  oh0 = vlib_buffer_get_current (b0);
344  ouh0 = vlib_buffer_get_current (b0);
345  next_hdr_type = (is_ip6 ?
346  IP_PROTOCOL_IPV6 : IP_PROTOCOL_IP_IN_IP);
347  /*
348  * oh0->ip4.ip_version_and_header_length = 0x45;
349  * oh0->ip4.tos = ih0->ip4.tos;
350  * oh0->ip4.fragment_id = 0;
351  * oh0->ip4.flags_and_fragment_offset = 0;
352  */
353  oh0->ip4.checksum_data_64[0] =
354  clib_host_to_net_u64 (0x45ULL << 56);
355  /*
356  * oh0->ip4.ttl = 254;
357  * oh0->ip4.protocol = IP_PROTOCOL_IPSEC_ESP;
358  */
359  oh0->ip4.checksum_data_32[2] =
360  clib_host_to_net_u32 (0xfe320000);
361 
362  oh0->ip4.src_address.as_u32 =
363  sa0->tunnel_src_addr.ip4.as_u32;
364  oh0->ip4.dst_address.as_u32 =
365  sa0->tunnel_dst_addr.ip4.as_u32;
366 
367  if (ipsec_sa_is_set_UDP_ENCAP (sa0))
368  {
369  oh0->ip4.protocol = IP_PROTOCOL_UDP;
370  esp0 = &ouh0->esp;
371  }
372  else
373  esp0 = &oh0->esp;
374  esp0->spi = clib_host_to_net_u32 (sa0->spi);
375  esp0->seq = clib_host_to_net_u32 (sa0->seq);
376  }
377  else
378  {
379  /* ip6 */
380  /* in tunnel mode send it back to FIB */
381  priv->next = DPDK_CRYPTO_INPUT_NEXT_IP6_LOOKUP;
382 
383  u8 adv =
384  sizeof (ip6_header_t) + sizeof (esp_header_t) + iv_size;
385  vlib_buffer_advance (b0, -adv);
386  ih6_0 = (ip6_and_esp_header_t *) ih0;
387  oh6_0 = vlib_buffer_get_current (b0);
388 
389  next_hdr_type = (is_ip6 ?
390  IP_PROTOCOL_IPV6 : IP_PROTOCOL_IP_IN_IP);
391 
392  oh6_0->ip6.ip_version_traffic_class_and_flow_label =
393  ih6_0->ip6.ip_version_traffic_class_and_flow_label;
394 
395  oh6_0->ip6.protocol = IP_PROTOCOL_IPSEC_ESP;
396  oh6_0->ip6.hop_limit = 254;
397  oh6_0->ip6.src_address.as_u64[0] =
398  sa0->tunnel_src_addr.ip6.as_u64[0];
399  oh6_0->ip6.src_address.as_u64[1] =
400  sa0->tunnel_src_addr.ip6.as_u64[1];
401  oh6_0->ip6.dst_address.as_u64[0] =
402  sa0->tunnel_dst_addr.ip6.as_u64[0];
403  oh6_0->ip6.dst_address.as_u64[1] =
404  sa0->tunnel_dst_addr.ip6.as_u64[1];
405  esp0 = &oh6_0->esp;
406  oh6_0->esp.spi = clib_host_to_net_u32 (sa0->spi);
407  oh6_0->esp.seq = clib_host_to_net_u32 (sa0->seq);
408  }
409 
410  vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
411  }
412  else /* transport mode */
413  {
414  priv->next = DPDK_CRYPTO_INPUT_NEXT_INTERFACE_OUTPUT;
415  rewrite_len = vnet_buffer (b0)->ip.save_rewrite_length;
416  u16 adv = sizeof (esp_header_t) + iv_size + udp_encap_adv;
417  vlib_buffer_advance (b0, -adv - rewrite_len);
418  u8 *src = ((u8 *) ih0) - rewrite_len;
420  oh0 = vlib_buffer_get_current (b0) + rewrite_len;
421  ouh0 = vlib_buffer_get_current (b0) + rewrite_len;
422 
423  if (is_ip6)
424  {
425  orig_sz -= sizeof (ip6_header_t);
426  ih6_0 = (ip6_and_esp_header_t *) ih0;
427  next_hdr_type = ih6_0->ip6.protocol;
428  memmove (dst, src, rewrite_len + sizeof (ip6_header_t));
429  oh6_0 = (ip6_and_esp_header_t *) oh0;
430  oh6_0->ip6.protocol = IP_PROTOCOL_IPSEC_ESP;
431  esp0 = &oh6_0->esp;
432  }
433  else /* ipv4 */
434  {
435  u16 ip_size = ip4_header_bytes (&ih0->ip4);
436  orig_sz -= ip_size;
437  next_hdr_type = ih0->ip4.protocol;
438  memmove (dst, src, rewrite_len + ip_size);
439  oh0->ip4.protocol = IP_PROTOCOL_IPSEC_ESP;
440  esp0 = (esp_header_t *) (((u8 *) oh0) + ip_size);
441  if (ipsec_sa_is_set_UDP_ENCAP (sa0))
442  {
443  oh0->ip4.protocol = IP_PROTOCOL_UDP;
444  esp0 = (esp_header_t *)
445  (((u8 *) oh0) + ip_size + udp_encap_adv);
446  }
447  else
448  {
449  oh0->ip4.protocol = IP_PROTOCOL_IPSEC_ESP;
450  esp0 = (esp_header_t *) (((u8 *) oh0) + ip_size);
451  }
452  }
453  esp0->spi = clib_host_to_net_u32 (sa0->spi);
454  esp0->seq = clib_host_to_net_u32 (sa0->seq);
455  }
456 
457  if (ipsec_sa_is_set_UDP_ENCAP (sa0) && ouh0)
458  {
459  ouh0->udp.src_port = clib_host_to_net_u16 (UDP_DST_PORT_ipsec);
460  ouh0->udp.dst_port = clib_host_to_net_u16 (UDP_DST_PORT_ipsec);
461  ouh0->udp.checksum = 0;
462  }
463  ASSERT (is_pow2 (cipher_alg->boundary));
464  u16 mask = cipher_alg->boundary - 1;
465  u16 pad_payload_len = ((orig_sz + 2) + mask) & ~mask;
466  u8 pad_bytes = pad_payload_len - 2 - orig_sz;
467 
468  u8 *padding =
469  vlib_buffer_put_uninit (b0, pad_bytes + 2 + trunc_size);
470 
471  /* The extra pad bytes would be overwritten by the digest */
472  if (pad_bytes)
473  clib_memcpy_fast (padding, pad_data, 16);
474 
475  f0 = (esp_footer_t *) (padding + pad_bytes);
476  f0->pad_length = pad_bytes;
477  f0->next_header = next_hdr_type;
478 
479  if (oh6_0)
480  {
481  u16 len = b0->current_length - sizeof (ip6_header_t);
482  oh6_0->ip6.payload_length =
483  clib_host_to_net_u16 (len - rewrite_len);
484  }
485  else if (oh0)
486  {
487  oh0->ip4.length =
488  clib_host_to_net_u16 (b0->current_length - rewrite_len);
489  oh0->ip4.checksum = ip4_header_checksum (&oh0->ip4);
490  if (ipsec_sa_is_set_UDP_ENCAP (sa0) && ouh0)
491  {
492  ouh0->udp.length =
493  clib_host_to_net_u16 (clib_net_to_host_u16
494  (ouh0->ip4.length) -
495  ip4_header_bytes (&ouh0->ip4));
496  }
497  }
498  else /* should never happen */
499  clib_warning ("No outer header found for ESP packet");
500 
501  b0->flags |= VLIB_BUFFER_TOTAL_LENGTH_VALID;
502 
503  /* mbuf packet starts at ESP header */
504  mb0->data_len = vlib_buffer_get_tail (b0) - ((u8 *) esp0);
505  mb0->pkt_len = vlib_buffer_get_tail (b0) - ((u8 *) esp0);
506  mb0->data_off = ((void *) esp0) - mb0->buf_addr;
507 
508  u32 cipher_off, cipher_len, auth_len = 0;
509  u32 *aad = NULL;
510 
511  u8 *digest = vlib_buffer_get_tail (b0) - trunc_size;
512  u64 digest_paddr =
513  mb0->buf_physaddr + digest - ((u8 *) mb0->buf_addr);
514 
515  if (!is_aead && (cipher_alg->alg == RTE_CRYPTO_CIPHER_AES_CBC ||
516  cipher_alg->alg == RTE_CRYPTO_CIPHER_NULL))
517  {
518  cipher_off = sizeof (esp_header_t);
519  cipher_len = iv_size + pad_payload_len;
520  }
521  else /* CTR/GCM */
522  {
523  u32 *esp_iv = (u32 *) (esp0 + 1);
524  esp_iv[0] = sa0->seq;
525  esp_iv[1] = sa0->seq_hi;
526 
527  cipher_off = sizeof (esp_header_t) + iv_size;
528  cipher_len = pad_payload_len;
529  }
530 
531  if (is_aead)
532  {
533  aad = (u32 *) priv->aad;
534  aad[0] = esp0->spi;
535 
536  /* aad[3] should always be 0 */
537  if (PREDICT_FALSE (ipsec_sa_is_set_USE_ESN (sa0)))
538  {
539  aad[1] = clib_host_to_net_u32 (sa0->seq_hi);
540  aad[2] = esp0->seq;
541  }
542  else
543  {
544  aad[1] = esp0->seq;
545  aad[2] = 0;
546  }
547  }
548  else
549  {
550  auth_len =
551  vlib_buffer_get_tail (b0) - ((u8 *) esp0) - trunc_size;
552  if (ipsec_sa_is_set_USE_ESN (sa0))
553  {
554  u32 *_digest = (u32 *) digest;
555  _digest[0] = clib_host_to_net_u32 (sa0->seq_hi);
556  auth_len += 4;
557  }
558  }
559 
560  crypto_op_setup (is_aead, mb0, op, session, cipher_off, cipher_len,
561  0, auth_len, (u8 *) aad, digest, digest_paddr);
562 
563  trace:
564  if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
565  {
566  esp_encrypt_trace_t *tr =
567  vlib_add_trace (vm, node, b0, sizeof (*tr));
568  tr->crypto_alg = sa0->crypto_alg;
569  tr->integ_alg = sa0->integ_alg;
570  u8 *p = vlib_buffer_get_current (b0);
571  if (!ipsec_sa_is_set_IS_TUNNEL (sa0) && !is_tun)
572  p += vnet_buffer (b0)->ip.save_rewrite_length;
573  clib_memcpy_fast (tr->packet_data, p, sizeof (tr->packet_data));
574  }
575  }
576  vlib_put_next_frame (vm, node, next_index, n_left_to_next);
577  }
578  if (is_ip6)
579  {
581  ESP_ENCRYPT_ERROR_RX_PKTS,
582  from_frame->n_vectors);
583 
585  ESP_ENCRYPT_ERROR_ENQ_FAIL, numa, 1 /* encrypt */ );
586  }
587  else
588  {
590  ESP_ENCRYPT_ERROR_RX_PKTS,
591  from_frame->n_vectors);
592 
594  ESP_ENCRYPT_ERROR_ENQ_FAIL, numa, 1 /* encrypt */ );
595  }
596 
597  crypto_free_ops (numa, ops, cwm->ops + from_frame->n_vectors - ops);
598 
599  return from_frame->n_vectors;
600 }
601 
603  vlib_node_runtime_t * node,
604  vlib_frame_t * from_frame)
605 {
606  return dpdk_esp_encrypt_inline (vm, node, from_frame, 0 /*is_ip6 */ , 0);
607 }
608 
609 /* *INDENT-OFF* */
611  .name = "dpdk-esp4-encrypt",
612  .flags = VLIB_NODE_FLAG_IS_OUTPUT,
613  .vector_size = sizeof (u32),
614  .format_trace = format_esp_encrypt_trace,
615  .n_errors = ARRAY_LEN (esp_encrypt_error_strings),
616  .error_strings = esp_encrypt_error_strings,
617  .n_next_nodes = 1,
618  .next_nodes =
619  {
620  [ESP_ENCRYPT_NEXT_DROP] = "error-drop",
621  }
622 };
623 /* *INDENT-ON* */
624 
626  vlib_node_runtime_t * node,
627  vlib_frame_t * from_frame)
628 {
629  return dpdk_esp_encrypt_inline (vm, node, from_frame, 1 /*is_ip6 */ , 0);
630 }
631 
632 /* *INDENT-OFF* */
634  .name = "dpdk-esp6-encrypt",
635  .flags = VLIB_NODE_FLAG_IS_OUTPUT,
636  .vector_size = sizeof (u32),
637  .format_trace = format_esp_encrypt_trace,
638  .n_errors = ARRAY_LEN (esp_encrypt_error_strings),
639  .error_strings = esp_encrypt_error_strings,
640  .n_next_nodes = 1,
641  .next_nodes =
642  {
643  [ESP_ENCRYPT_NEXT_DROP] = "error-drop",
644  }
645 };
646 /* *INDENT-ON* */
647 
649  vlib_node_runtime_t * node,
650  vlib_frame_t * from_frame)
651 {
652  return dpdk_esp_encrypt_inline (vm, node, from_frame, 0 /*is_ip6 */ , 1);
653 }
654 
655 /* *INDENT-OFF* */
657  .name = "dpdk-esp4-encrypt-tun",
658  .flags = VLIB_NODE_FLAG_IS_OUTPUT,
659  .vector_size = sizeof (u32),
660  .format_trace = format_esp_encrypt_trace,
661  .n_errors = ARRAY_LEN (esp_encrypt_error_strings),
662  .error_strings = esp_encrypt_error_strings,
663  .n_next_nodes = 1,
664  .next_nodes =
665  {
666  [ESP_ENCRYPT_NEXT_DROP] = "error-drop",
667  }
668 };
669 
670 VNET_FEATURE_INIT (dpdk_esp4_encrypt_tun_feat_node, static) =
671 {
672  .arc_name = "ip4-output",
673  .node_name = "dpdk-esp4-encrypt-tun",
674  .runs_before = VNET_FEATURES ("adj-midchain-tx"),
675 };
676 /* *INDENT-ON* */
677 
679  vlib_node_runtime_t * node,
680  vlib_frame_t * from_frame)
681 {
682  return dpdk_esp_encrypt_inline (vm, node, from_frame, 1 /*is_ip6 */ , 1);
683 }
684 
685 /* *INDENT-OFF* */
687  .name = "dpdk-esp6-encrypt-tun",
688  .flags = VLIB_NODE_FLAG_IS_OUTPUT,
689  .vector_size = sizeof (u32),
690  .format_trace = format_esp_encrypt_trace,
691  .n_errors = ARRAY_LEN (esp_encrypt_error_strings),
692  .error_strings = esp_encrypt_error_strings,
693  .n_next_nodes = 1,
694  .next_nodes =
695  {
696  [ESP_ENCRYPT_NEXT_DROP] = "error-drop",
697  }
698 };
699 
700 VNET_FEATURE_INIT (dpdk_esp6_encrypt_tun_feat_node, static) =
701 {
702  .arc_name = "ip6-output",
703  .node_name = "dpdk-esp6-encrypt-tun",
704  .runs_before = VNET_FEATURES ("adj-midchain-tx"),
705 };
706 /* *INDENT-ON* */
707 
708 /*
709  * fd.io coding-style-patch-verification: ON
710  *
711  * Local Variables:
712  * eval: (c-set-style "gnu")
713  * End:
714  */
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:83
ip46_address_t tunnel_src_addr
Definition: ipsec_sa.h:154
vlib_node_registration_t dpdk_esp4_encrypt_node
(constructor) VLIB_REGISTER_NODE (dpdk_esp4_encrypt_node)
Definition: esp_encrypt.c:610
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
vnet_interface_main_t interface_main
Definition: vnet.h:56
format_function_t format_ip4_header
Definition: format.h:83
ipsec_integ_alg_t
Definition: ipsec_sa.h:58
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: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 u8 * format_esp_encrypt_trace(u8 *s, va_list *args)
Definition: esp_encrypt.c:79
static_always_inline void crypto_set_icb(dpdk_gcm_cnt_blk *icb, u32 salt, u32 seq, u32 seq_hi)
Definition: ipsec.h:348
vl_api_address_t src
Definition: gre.api:51
ipsec_integ_alg_t integ_alg
Definition: esp_encrypt.c:71
static u32 format_get_indent(u8 *s)
Definition: format.h:72
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:424
ipsec_crypto_alg_t crypto_alg
Definition: esp_encrypt.c:70
#define VLIB_NODE_FN(node)
Definition: node.h:202
unsigned char u8
Definition: types.h:56
u32 bi[VLIB_FRAME_SIZE]
Definition: ipsec.h:127
u32 seq_hi
Definition: ipsec_sa.h:119
static int esp_seq_advance(ipsec_sa_t *sa)
Definition: esp.h:84
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
dpdk_crypto_main_t dpdk_crypto_main
Definition: ipsec.c:25
vl_api_interface_index_t sw_if_index
Definition: gre.api:50
ipsec_main_t ipsec_main
Definition: ipsec.c:28
#define always_inline
Definition: clib.h:99
vlib_combined_counter_main_t * combined_sw_if_counters
Definition: interface.h:846
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
u32 next
Definition: ipsec.h:63
esp_encrypt_error_t
Definition: esp_encrypt.c:49
static_always_inline void * vnet_feature_next_with_data(u32 *next0, vlib_buffer_t *b0, u32 n_data_bytes)
Definition: feature.h:289
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:514
vlib_node_registration_t dpdk_esp6_encrypt_tun_node
(constructor) VLIB_REGISTER_NODE (dpdk_esp6_encrypt_tun_node)
Definition: esp_encrypt.c:686
crypto_alg_t * cipher_algs
Definition: ipsec.h:165
u32 salt
Definition: ipsec_sa.h:163
vnet_main_t * vnet_main
Definition: ipsec.h:108
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:112
vl_api_address_t dst
Definition: gre.api:52
#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
ip46_address_t tunnel_dst_addr
Definition: ipsec_sa.h:155
u8 aad[16]
Definition: ipsec.h:68
#define VLIB_REGISTER_NODE(x,...)
Definition: node.h:169
vlib_node_registration_t dpdk_esp4_encrypt_tun_node
(constructor) VLIB_REGISTER_NODE (dpdk_esp4_encrypt_tun_node)
Definition: esp_encrypt.c:656
u16 n_vectors
Definition: node.h:397
static_always_inline uword vlib_get_thread_index(void)
Definition: threads.h:218
#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
#define foreach_esp_encrypt_error
Definition: esp_encrypt.c:44
vlib_node_registration_t dpdk_esp6_encrypt_node
(constructor) VLIB_REGISTER_NODE (dpdk_esp6_encrypt_node)
Definition: esp_encrypt.c:633
#define clib_warning(format, args...)
Definition: error.h:59
u8 data[]
Packet data.
Definition: buffer.h:181
static char * esp_encrypt_error_strings[]
Definition: esp_encrypt.c:61
#define ARRAY_LEN(x)
Definition: clib.h:63
esp_encrypt_next_t
Definition: esp_encrypt.c:35
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
#define ASSERT(truth)
ipsec_sa_t * sad
Definition: ipsec.h:97
crypto_worker_main_t * workers_main
Definition: ipsec.h:162
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
u32 spi
Definition: esp.h:26
u8 boundary
Definition: ipsec.h:90
#define VNET_FEATURES(...)
Definition: feature.h:442
crypto_resource_t * resource
Definition: ipsec.h:164
static uword is_pow2(uword x)
Definition: clib.h:236
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
template key/value backing page structure
Definition: bihash_doc.h:44
Definition: defs.h:47
static uword dpdk_esp_encrypt_inline(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame, int is_ip6, int is_tun)
Definition: esp_encrypt.c:111
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
struct clib_bihash_value offset
template key/value backing page structure
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
#define VLIB_NODE_FLAG_IS_OUTPUT
Definition: node.h:296
#define foreach_esp_encrypt_next
Definition: esp_encrypt.c:30
static void * vlib_buffer_put_uninit(vlib_buffer_t *b, u16 size)
Append uninitialized data to buffer.
Definition: buffer.h:321
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
VNET_FEATURE_INIT(esp4_encrypt_tun_feat_node, static)
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:59
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
static_always_inline dpdk_op_priv_t * crypto_op_get_priv(struct rte_crypto_op *op)
Definition: ipsec.h:207