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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/ipsec/ipsec.h>
26 #include <dpdk/device/dpdk.h>
27 #include <dpdk/device/dpdk_priv.h>
28 
29 #define foreach_esp_encrypt_next \
30 _(DROP, "error-drop") \
31 _(IP4_LOOKUP, "ip4-lookup") \
32 _(IP6_LOOKUP, "ip6-lookup") \
33 _(INTERFACE_OUTPUT, "interface-output")
34 
35 #define _(v, s) ESP_ENCRYPT_NEXT_##v,
36 typedef enum
37 {
39 #undef _
42 
43 #define foreach_esp_encrypt_error \
44  _(RX_PKTS, "ESP pkts received") \
45  _(SEQ_CYCLED, "Sequence number cycled") \
46  _(ENQ_FAIL, "Enqueue failed to crypto device") \
47  _(DISCARD, "Not enough crypto operations, discarding frame") \
48  _(SESSION, "Failed to get crypto session") \
49  _(NOSUP, "Cipher/Auth not supported")
50 
51 
52 typedef enum
53 {
54 #define _(sym,str) ESP_ENCRYPT_ERROR_##sym,
56 #undef _
59 
60 static char *esp_encrypt_error_strings[] = {
61 #define _(sym,string) string,
63 #undef _
64 };
65 
67 
68 typedef struct
69 {
70  ipsec_crypto_alg_t crypto_alg;
71  ipsec_integ_alg_t integ_alg;
72  u8 packet_data[64];
74 
75 /* packet trace format function */
76 static u8 *
77 format_esp_encrypt_trace (u8 * s, va_list * args)
78 {
79  CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
80  CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
81  esp_encrypt_trace_t *t = va_arg (*args, esp_encrypt_trace_t *);
83  u32 indent = format_get_indent (s), offset;
84 
85  s = format (s, "cipher %U auth %U\n",
88 
89  if ((ih4->ip_version_and_header_length & 0xF0) == 0x60)
90  {
91  s = format (s, "%U%U", format_white_space, indent,
92  format_ip6_header, ih4);
93  offset = sizeof (ip6_header_t);
94  }
95  else
96  {
97  s = format (s, "%U%U", format_white_space, indent,
98  format_ip4_header, ih4);
99  offset = ip4_header_bytes (ih4);
100  }
101 
102  s = format (s, "\n%U%U", format_white_space, indent,
104 
105  return s;
106 }
107 
108 static uword
110  vlib_node_runtime_t * node,
111  vlib_frame_t * from_frame)
112 {
113  u32 n_left_from, *from, *to_next, next_index;
114  ipsec_main_t *im = &ipsec_main;
115  u32 thread_idx = vlib_get_thread_index ();
117  crypto_resource_t *res = 0;
118  ipsec_sa_t *sa0 = 0;
119  crypto_alg_t *cipher_alg = 0, *auth_alg = 0;
120  struct rte_cryptodev_sym_session *session = 0;
121  u32 ret, last_sa_index = ~0;
122  u8 numa = rte_socket_id ();
123  u8 is_aead = 0;
124  crypto_worker_main_t *cwm =
125  vec_elt_at_index (dcm->workers_main, thread_idx);
126  struct rte_crypto_op **ops = cwm->ops;
127 
128  from = vlib_frame_vector_args (from_frame);
129  n_left_from = from_frame->n_vectors;
130 
131  ret = crypto_alloc_ops (numa, ops, n_left_from);
132  if (ret)
133  {
135  ESP_ENCRYPT_ERROR_DISCARD, 1);
136  /* Discard whole frame */
137  return n_left_from;
138  }
139 
140  next_index = ESP_ENCRYPT_NEXT_DROP;
141 
142  while (n_left_from > 0)
143  {
144  u32 n_left_to_next;
145 
146  vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
147 
148  while (n_left_from > 0 && n_left_to_next > 0)
149  {
150  clib_error_t *error;
151  u32 bi0;
152  vlib_buffer_t *b0 = 0;
153  u32 sa_index0;
154  ip4_and_esp_header_t *ih0, *oh0 = 0;
155  ip6_and_esp_header_t *ih6_0, *oh6_0 = 0;
156  ip4_and_udp_and_esp_header_t *ouh0 = 0;
157  esp_header_t *esp0;
158  esp_footer_t *f0;
159  u8 is_ipv6, next_hdr_type;
160  u32 iv_size;
161  u16 orig_sz;
162  u8 trunc_size;
163  u16 rewrite_len;
164  u16 udp_encap_adv = 0;
165  struct rte_mbuf *mb0 = 0;
166  struct rte_crypto_op *op;
167  u16 res_idx;
168 
169  bi0 = from[0];
170  from += 1;
171  n_left_from -= 1;
172 
173  b0 = vlib_get_buffer (vm, bi0);
174  ih0 = vlib_buffer_get_current (b0);
175  mb0 = rte_mbuf_from_vlib_buffer (b0);
176 
177  /* ih0/ih6_0 */
178  CLIB_PREFETCH (ih0, sizeof (ih6_0[0]), LOAD);
179  /* f0 */
180  CLIB_PREFETCH (vlib_buffer_get_tail (b0), 20, STORE);
181  /* mb0 */
182  CLIB_PREFETCH (mb0, CLIB_CACHE_LINE_BYTES, STORE);
183 
184  op = ops[0];
185  ops += 1;
186  ASSERT (op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED);
187 
188  dpdk_op_priv_t *priv = crypto_op_get_priv (op);
189 
190  u16 op_len =
191  sizeof (op[0]) + sizeof (op[0].sym[0]) + sizeof (priv[0]);
192  CLIB_PREFETCH (op, op_len, STORE);
193 
194  sa_index0 = vnet_buffer (b0)->ipsec.sad_index;
195 
196  if (sa_index0 != last_sa_index)
197  {
198  sa0 = pool_elt_at_index (im->sad, sa_index0);
199 
200  cipher_alg =
202  auth_alg = vec_elt_at_index (dcm->auth_algs, sa0->integ_alg);
203 
204  is_aead = (cipher_alg->type == RTE_CRYPTO_SYM_XFORM_AEAD);
205 
206  if (is_aead)
207  auth_alg = cipher_alg;
208 
209  res_idx = get_resource (cwm, sa0);
210 
211  if (PREDICT_FALSE (res_idx == (u16) ~ 0))
212  {
213  clib_warning ("unsupported SA by thread index %u",
214  thread_idx);
216  dpdk_esp_encrypt_node.index,
217  ESP_ENCRYPT_ERROR_NOSUP, 1);
218  to_next[0] = bi0;
219  to_next += 1;
220  n_left_to_next -= 1;
221  goto trace;
222  }
223  res = vec_elt_at_index (dcm->resource, res_idx);
224 
225  error = crypto_get_session (&session, sa_index0, res, cwm, 1);
226  if (PREDICT_FALSE (error || !session))
227  {
228  clib_warning ("failed to get crypto session");
230  dpdk_esp_encrypt_node.index,
231  ESP_ENCRYPT_ERROR_SESSION, 1);
232  to_next[0] = bi0;
233  to_next += 1;
234  n_left_to_next -= 1;
235  goto trace;
236  }
237 
238  last_sa_index = sa_index0;
239  }
240 
241  if (PREDICT_FALSE (esp_seq_advance (sa0)))
242  {
243  clib_warning ("sequence number counter has cycled SPI %u",
244  sa0->spi);
246  ESP_ENCRYPT_ERROR_SEQ_CYCLED, 1);
247  //TODO: rekey SA
248  to_next[0] = bi0;
249  to_next += 1;
250  n_left_to_next -= 1;
251  goto trace;
252  }
253 
254  orig_sz = b0->current_length;
255 
256  /* TODO multi-seg support - total_length_not_including_first_buffer */
257  sa0->total_data_size += b0->current_length;
258 
259  res->ops[res->n_ops] = op;
260  res->bi[res->n_ops] = bi0;
261  res->n_ops += 1;
262 
263  dpdk_gcm_cnt_blk *icb = &priv->cb;
264 
265  crypto_set_icb (icb, sa0->salt, sa0->seq, sa0->seq_hi);
266 
267  is_ipv6 = (ih0->ip4.ip_version_and_header_length & 0xF0) == 0x60;
268 
269  iv_size = cipher_alg->iv_len;
270  trunc_size = auth_alg->trunc_size;
271 
272  /* if UDP encapsulation is used adjust the address of the IP header */
273  if (sa0->udp_encap && !is_ipv6)
274  udp_encap_adv = sizeof (udp_header_t);
275 
276  if (sa0->is_tunnel)
277  {
278  rewrite_len = 0;
279  if (!is_ipv6 && !sa0->is_tunnel_ip6) /* ip4inip4 */
280  {
281  /* in tunnel mode send it back to FIB */
282  priv->next = DPDK_CRYPTO_INPUT_NEXT_IP4_LOOKUP;
283  u8 adv = sizeof (ip4_header_t) + udp_encap_adv +
284  sizeof (esp_header_t) + iv_size;
285  vlib_buffer_advance (b0, -adv);
286  oh0 = vlib_buffer_get_current (b0);
287  ouh0 = vlib_buffer_get_current (b0);
288  next_hdr_type = IP_PROTOCOL_IP_IN_IP;
289  /*
290  * oh0->ip4.ip_version_and_header_length = 0x45;
291  * oh0->ip4.tos = ih0->ip4.tos;
292  * oh0->ip4.fragment_id = 0;
293  * oh0->ip4.flags_and_fragment_offset = 0;
294  */
295  oh0->ip4.checksum_data_64[0] =
296  clib_host_to_net_u64 (0x45ULL << 56);
297  /*
298  * oh0->ip4.ttl = 254;
299  * oh0->ip4.protocol = IP_PROTOCOL_IPSEC_ESP;
300  */
301  oh0->ip4.checksum_data_32[2] =
302  clib_host_to_net_u32 (0xfe320000);
303 
304  oh0->ip4.src_address.as_u32 =
305  sa0->tunnel_src_addr.ip4.as_u32;
306  oh0->ip4.dst_address.as_u32 =
307  sa0->tunnel_dst_addr.ip4.as_u32;
308 
309  if (sa0->udp_encap)
310  {
311  oh0->ip4.protocol = IP_PROTOCOL_UDP;
312  esp0 = &ouh0->esp;
313  }
314  else
315  esp0 = &oh0->esp;
316  esp0->spi = clib_host_to_net_u32 (sa0->spi);
317  esp0->seq = clib_host_to_net_u32 (sa0->seq);
318  }
319  else if (is_ipv6 && sa0->is_tunnel_ip6) /* ip6inip6 */
320  {
321  /* in tunnel mode send it back to FIB */
322  priv->next = DPDK_CRYPTO_INPUT_NEXT_IP6_LOOKUP;
323 
324  u8 adv =
325  sizeof (ip6_header_t) + sizeof (esp_header_t) + iv_size;
326  vlib_buffer_advance (b0, -adv);
327  ih6_0 = (ip6_and_esp_header_t *) ih0;
328  oh6_0 = vlib_buffer_get_current (b0);
329 
330  next_hdr_type = IP_PROTOCOL_IPV6;
331 
332  oh6_0->ip6.ip_version_traffic_class_and_flow_label =
333  ih6_0->ip6.ip_version_traffic_class_and_flow_label;
334 
335  oh6_0->ip6.protocol = IP_PROTOCOL_IPSEC_ESP;
336  oh6_0->ip6.hop_limit = 254;
337  oh6_0->ip6.src_address.as_u64[0] =
338  sa0->tunnel_src_addr.ip6.as_u64[0];
339  oh6_0->ip6.src_address.as_u64[1] =
340  sa0->tunnel_src_addr.ip6.as_u64[1];
341  oh6_0->ip6.dst_address.as_u64[0] =
342  sa0->tunnel_dst_addr.ip6.as_u64[0];
343  oh6_0->ip6.dst_address.as_u64[1] =
344  sa0->tunnel_dst_addr.ip6.as_u64[1];
345  esp0 = &oh6_0->esp;
346  oh6_0->esp.spi = clib_host_to_net_u32 (sa0->spi);
347  oh6_0->esp.seq = clib_host_to_net_u32 (sa0->seq);
348  }
349  else /* unsupported ip4inip6, ip6inip4 */
350  {
352  dpdk_esp_encrypt_node.index,
353  ESP_ENCRYPT_ERROR_NOSUP, 1);
354  to_next[0] = bi0;
355  to_next += 1;
356  n_left_to_next -= 1;
357  goto trace;
358  }
359  vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
360  }
361  else /* transport mode */
362  {
363  priv->next = DPDK_CRYPTO_INPUT_NEXT_INTERFACE_OUTPUT;
364  rewrite_len = vnet_buffer (b0)->ip.save_rewrite_length;
365  u16 adv = sizeof (esp_header_t) + iv_size + udp_encap_adv;
366  vlib_buffer_advance (b0, -adv - rewrite_len);
367  u8 *src = ((u8 *) ih0) - rewrite_len;
368  u8 *dst = vlib_buffer_get_current (b0);
369  oh0 = vlib_buffer_get_current (b0) + rewrite_len;
370 
371  if (is_ipv6)
372  {
373  orig_sz -= sizeof (ip6_header_t);
374  ih6_0 = (ip6_and_esp_header_t *) ih0;
375  next_hdr_type = ih6_0->ip6.protocol;
376  memmove (dst, src, rewrite_len + sizeof (ip6_header_t));
377  oh6_0 = (ip6_and_esp_header_t *) oh0;
378  oh6_0->ip6.protocol = IP_PROTOCOL_IPSEC_ESP;
379  esp0 = &oh6_0->esp;
380  }
381  else /* ipv4 */
382  {
383  u16 ip_size = ip4_header_bytes (&ih0->ip4);
384  orig_sz -= ip_size;
385  next_hdr_type = ih0->ip4.protocol;
386  memmove (dst, src, rewrite_len + ip_size);
387  oh0->ip4.protocol = IP_PROTOCOL_IPSEC_ESP;
388  esp0 = (esp_header_t *) (((u8 *) oh0) + ip_size);
389  if (sa0->udp_encap)
390  {
391  oh0->ip4.protocol = IP_PROTOCOL_UDP;
392  esp0 = (esp_header_t *)
393  (((u8 *) oh0) + ip_size + udp_encap_adv);
394  }
395  else
396  {
397  oh0->ip4.protocol = IP_PROTOCOL_IPSEC_ESP;
398  esp0 = (esp_header_t *) (((u8 *) oh0) + ip_size);
399  }
400  }
401  esp0->spi = clib_host_to_net_u32 (sa0->spi);
402  esp0->seq = clib_host_to_net_u32 (sa0->seq);
403  }
404 
405  if (sa0->udp_encap && ouh0)
406  {
407  ouh0->udp.src_port = clib_host_to_net_u16 (UDP_DST_PORT_ipsec);
408  ouh0->udp.dst_port = clib_host_to_net_u16 (UDP_DST_PORT_ipsec);
409  ouh0->udp.checksum = 0;
410  }
411  ASSERT (is_pow2 (cipher_alg->boundary));
412  u16 mask = cipher_alg->boundary - 1;
413  u16 pad_payload_len = ((orig_sz + 2) + mask) & ~mask;
414  u8 pad_bytes = pad_payload_len - 2 - orig_sz;
415 
416  u8 *padding =
417  vlib_buffer_put_uninit (b0, pad_bytes + 2 + trunc_size);
418 
419  /* The extra pad bytes would be overwritten by the digest */
420  if (pad_bytes)
421  clib_memcpy (padding, pad_data, 16);
422 
423  f0 = (esp_footer_t *) (padding + pad_bytes);
424  f0->pad_length = pad_bytes;
425  f0->next_header = next_hdr_type;
426 
427  if (is_ipv6)
428  {
429  u16 len = b0->current_length - sizeof (ip6_header_t);
430  oh6_0->ip6.payload_length =
431  clib_host_to_net_u16 (len - rewrite_len);
432  }
433  else
434  {
435  oh0->ip4.length =
436  clib_host_to_net_u16 (b0->current_length - rewrite_len);
437  oh0->ip4.checksum = ip4_header_checksum (&oh0->ip4);
438  if (sa0->udp_encap && ouh0)
439  {
440  ouh0->udp.length =
441  clib_host_to_net_u16 (clib_net_to_host_u16
442  (ouh0->ip4.length) -
443  ip4_header_bytes (&ouh0->ip4));
444  }
445  }
446 
447  vnet_buffer (b0)->sw_if_index[VLIB_RX] =
448  vnet_buffer (b0)->sw_if_index[VLIB_RX];
449  b0->flags |= VLIB_BUFFER_TOTAL_LENGTH_VALID;
450 
451  /* mbuf packet starts at ESP header */
452  mb0->data_len = vlib_buffer_get_tail (b0) - ((u8 *) esp0);
453  mb0->pkt_len = vlib_buffer_get_tail (b0) - ((u8 *) esp0);
454  mb0->data_off = ((void *) esp0) - mb0->buf_addr;
455 
456  u32 cipher_off, cipher_len, auth_len = 0;
457  u32 *aad = NULL;
458 
459  u8 *digest = vlib_buffer_get_tail (b0) - trunc_size;
460  u64 digest_paddr =
461  mb0->buf_physaddr + digest - ((u8 *) mb0->buf_addr);
462 
463  if (!is_aead && cipher_alg->alg == RTE_CRYPTO_CIPHER_AES_CBC)
464  {
465  cipher_off = sizeof (esp_header_t);
466  cipher_len = iv_size + pad_payload_len;
467  }
468  else /* CTR/GCM */
469  {
470  u32 *esp_iv = (u32 *) (esp0 + 1);
471  esp_iv[0] = sa0->seq;
472  esp_iv[1] = sa0->seq_hi;
473 
474  cipher_off = sizeof (esp_header_t) + iv_size;
475  cipher_len = pad_payload_len;
476  }
477 
478  if (is_aead)
479  {
480  aad = (u32 *) priv->aad;
481  aad[0] = clib_host_to_net_u32 (sa0->spi);
482  aad[1] = clib_host_to_net_u32 (sa0->seq);
483 
484  /* aad[3] should always be 0 */
485  if (PREDICT_FALSE (sa0->use_esn))
486  aad[2] = clib_host_to_net_u32 (sa0->seq_hi);
487  else
488  aad[2] = 0;
489  }
490  else
491  {
492  auth_len =
493  vlib_buffer_get_tail (b0) - ((u8 *) esp0) - trunc_size;
494  if (sa0->use_esn)
495  {
496  u32 *_digest = (u32 *) digest;
497  _digest[0] = clib_host_to_net_u32 (sa0->seq_hi);
498  auth_len += 4;
499  }
500  }
501 
502  crypto_op_setup (is_aead, mb0, op, session, cipher_off, cipher_len,
503  0, auth_len, (u8 *) aad, digest, digest_paddr);
504 
505  trace:
506  if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
507  {
508  esp_encrypt_trace_t *tr =
509  vlib_add_trace (vm, node, b0, sizeof (*tr));
510  tr->crypto_alg = sa0->crypto_alg;
511  tr->integ_alg = sa0->integ_alg;
512  u8 *p = vlib_buffer_get_current (b0);
513  if (!sa0->is_tunnel)
514  p += vnet_buffer (b0)->ip.save_rewrite_length;
515  clib_memcpy (tr->packet_data, p, sizeof (tr->packet_data));
516  }
517  }
518  vlib_put_next_frame (vm, node, next_index, n_left_to_next);
519  }
521  ESP_ENCRYPT_ERROR_RX_PKTS,
522  from_frame->n_vectors);
523 
524  crypto_enqueue_ops (vm, cwm, 1, dpdk_esp_encrypt_node.index,
525  ESP_ENCRYPT_ERROR_ENQ_FAIL, numa);
526 
527  crypto_free_ops (numa, ops, cwm->ops + from_frame->n_vectors - ops);
528 
529  return from_frame->n_vectors;
530 }
531 
532 /* *INDENT-OFF* */
534  .function = dpdk_esp_encrypt_node_fn,
535  .name = "dpdk-esp-encrypt",
536  .flags = VLIB_NODE_FLAG_IS_OUTPUT,
537  .vector_size = sizeof (u32),
538  .format_trace = format_esp_encrypt_trace,
539  .n_errors = ARRAY_LEN (esp_encrypt_error_strings),
540  .error_strings = esp_encrypt_error_strings,
541  .n_next_nodes = 1,
542  .next_nodes =
543  {
544  [ESP_ENCRYPT_NEXT_DROP] = "error-drop",
545  }
546 };
547 /* *INDENT-ON* */
548 
550 /*
551  * fd.io coding-style-patch-verification: ON
552  *
553  * Local Variables:
554  * eval: (c-set-style "gnu")
555  * End:
556  */
u32 alg
Definition: ipsec.h:78
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:343
static vlib_cli_command_t trace
(constructor) VLIB_CLI_COMMAND (trace)
Definition: vlib_api_cli.c:862
static u8 * vlib_buffer_get_tail(vlib_buffer_t *b)
Get pointer to the end of buffer&#39;s data.
Definition: buffer.h:274
#define CLIB_UNUSED(x)
Definition: clib.h:79
ip46_address_t tunnel_src_addr
Definition: ipsec.h:131
format_function_t format_ip4_header
Definition: format.h:89
unsigned long u64
Definition: types.h:89
static int ip4_header_bytes(ip4_header_t *i)
Definition: ip4_packet.h:232
#define NULL
Definition: clib.h:55
static_always_inline i32 crypto_alloc_ops(u8 numa, struct rte_crypto_op **ops, u32 n)
Definition: ipsec.h:273
ipsec_integ_alg_t integ_alg
Definition: ipsec.h:121
static u8 * format_esp_encrypt_trace(u8 *s, va_list *args)
Definition: esp_encrypt.c:77
static_always_inline void crypto_set_icb(dpdk_gcm_cnt_blk *icb, u32 salt, u32 seq, u32 seq_hi)
Definition: ipsec.h:335
u32 padding
Definition: vhost-user.h:77
u8 is_tunnel
Definition: ipsec.h:128
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:419
ipsec_crypto_alg_t crypto_alg
Definition: esp_encrypt.c:70
static_always_inline void crypto_enqueue_ops(vlib_main_t *vm, crypto_worker_main_t *cwm, u8 outbound, u32 node_index, u32 error, u8 numa)
Definition: ipsec.h:301
unsigned char u8
Definition: types.h:56
u32 spi
Definition: ipsec.h:114
u32 bi[VLIB_FRAME_SIZE]
Definition: ipsec.h:119
u32 seq_hi
Definition: ipsec.h:138
static int esp_seq_advance(ipsec_sa_t *sa)
Definition: esp.h:233
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:227
static_always_inline void crypto_free_ops(u8 numa, struct rte_crypto_op **ops, u32 n)
Definition: ipsec.h:289
dpdk_crypto_main_t dpdk_crypto_main
Definition: ipsec.c:24
ipsec_main_t ipsec_main
Definition: ipsec.c:30
u8 * format_white_space(u8 *s, va_list *va)
Definition: std-formats.c:113
u8 use_esn
Definition: ipsec.h:125
#define vec_elt_at_index(v, i)
Get vector value at index i checking that i is in bounds.
vlib_node_registration_t dpdk_esp_encrypt_node
(constructor) VLIB_REGISTER_NODE (dpdk_esp_encrypt_node)
Definition: esp_encrypt.c:66
unsigned int u32
Definition: types.h:88
crypto_alg_t * auth_algs
Definition: ipsec.h:156
static const u8 pad_data[]
Definition: ipsec.h:165
u8 * format_ipsec_crypto_alg(u8 *s, va_list *args)
Definition: ipsec_format.c:58
u8 udp_encap
Definition: ipsec.h:130
u32 next
Definition: ipsec.h:59
esp_encrypt_error_t
Definition: esp_encrypt.c:49
#define VLIB_NODE_FUNCTION_MULTIARCH(node, fn)
Definition: node.h:194
#define rte_mbuf_from_vlib_buffer(x)
Definition: dpdk_priv.h:16
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:461
ipsec_integ_alg_t
Definition: ipsec.h:97
u16 current_length
Nbytes between current data and the end of this buffer.
Definition: buffer.h:108
u8 is_tunnel_ip6
Definition: ipsec.h:129
static void * vlib_buffer_put_uninit(vlib_buffer_t *b, u8 size)
Append uninitialized data to buffer.
Definition: buffer.h:285
crypto_alg_t * cipher_algs
Definition: ipsec.h:155
u32 salt
Definition: ipsec.h:134
unsigned short u16
Definition: types.h:57
static void * vlib_buffer_get_current(vlib_buffer_t *b)
Get pointer to current data to process.
Definition: buffer.h:202
#define PREDICT_FALSE(x)
Definition: clib.h:105
#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:364
static void vlib_node_increment_counter(vlib_main_t *vm, u32 node_index, u32 counter_index, u64 increment)
Definition: node_funcs.h:1168
ip46_address_t tunnel_dst_addr
Definition: ipsec.h:132
u8 aad[16]
Definition: ipsec.h:61
#define VLIB_REGISTER_NODE(x,...)
Definition: node.h:153
u16 n_vectors
Definition: node.h:380
static_always_inline uword vlib_get_thread_index(void)
Definition: threads.h:221
#define CLIB_PREFETCH(addr, size, type)
Definition: cache.h:77
vlib_main_t * vm
Definition: buffer.c:294
dpdk_gcm_cnt_blk cb
Definition: ipsec.h:60
#define foreach_esp_encrypt_error
Definition: esp_encrypt.c:43
#define clib_warning(format, args...)
Definition: error.h:59
#define clib_memcpy(a, b, c)
Definition: string.h:75
static char * esp_encrypt_error_strings[]
Definition: esp_encrypt.c:60
#define ARRAY_LEN(x)
Definition: clib.h:59
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:454
u8 * format_esp_header(u8 *s, va_list *args)
Definition: esp_format.c:23
u8 iv_len
Definition: ipsec.h:80
#define ASSERT(truth)
ipsec_sa_t * sad
Definition: ipsec.h:264
ipsec_crypto_alg_t
Definition: ipsec.h:80
crypto_worker_main_t * workers_main
Definition: ipsec.h:152
u64 total_data_size
Definition: ipsec.h:144
u32 seq
Definition: esp.h:28
static void vlib_buffer_advance(vlib_buffer_t *b, word l)
Advance current data pointer by the supplied (signed!) amount.
Definition: buffer.h:215
format_function_t format_ip6_header
Definition: format.h:103
u32 spi
Definition: esp.h:27
u8 boundary
Definition: ipsec.h:82
crypto_resource_t * resource
Definition: ipsec.h:154
static uword is_pow2(uword x)
Definition: clib.h:229
u32 seq
Definition: ipsec.h:137
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
u8 * format_ipsec_integ_alg(u8 *s, va_list *args)
Definition: ipsec_format.c:90
struct _vlib_node_registration vlib_node_registration_t
template key/value backing page structure
Definition: bihash_doc.h:44
Definition: defs.h:47
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:267
struct rte_crypto_op ** ops
Definition: ipsec.h:68
struct clib_bihash_value offset
template key/value backing page structure
enum rte_crypto_sym_xform_type type
Definition: ipsec.h:77
#define vnet_buffer(b)
Definition: buffer.h:360
static_always_inline u16 get_resource(crypto_worker_main_t *cwm, ipsec_sa_t *sa)
Definition: ipsec.h:248
ipsec_crypto_alg_t crypto_alg
Definition: ipsec.h:117
#define VLIB_NODE_FLAG_IS_OUTPUT
Definition: node.h:289
static uword dpdk_esp_encrypt_node_fn(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame)
Definition: esp_encrypt.c:109
#define foreach_esp_encrypt_next
Definition: esp_encrypt.c:29
u8 ip_version_and_header_length
Definition: ip4_packet.h:137
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:62
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:111
struct rte_crypto_op * ops[VLIB_FRAME_SIZE]
Definition: ipsec.h:118
static vlib_buffer_t * vlib_get_buffer(vlib_main_t *vm, u32 buffer_index)
Translate buffer index into buffer pointer.
Definition: buffer_funcs.h:57
static u16 ip4_header_checksum(ip4_header_t *i)
Definition: ip4_packet.h:244
Definition: defs.h:46
static_always_inline dpdk_op_priv_t * crypto_op_get_priv(struct rte_crypto_op *op)
Definition: ipsec.h:197