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Vector Packet Processing
ipsec_if.c
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1 /*
2  * ipsec_if.c : IPSec interface support
3  *
4  * Copyright (c) 2015 Cisco 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 
25 void vl_api_rpc_call_main_thread (void *fp, u8 * data, u32 data_length);
26 
27 static u8 *
28 format_ipsec_name (u8 * s, va_list * args)
29 {
30  u32 dev_instance = va_arg (*args, u32);
31  ipsec_main_t *im = &ipsec_main;
32  ipsec_tunnel_if_t *t = im->tunnel_interfaces + dev_instance;
33 
34  return format (s, "ipsec%d", t->show_instance);
35 }
36 
37 /* Statistics (not really errors) */
38 #define foreach_ipsec_if_tx_error \
39 _(TX, "good packets transmitted")
40 
41 static char *ipsec_if_tx_error_strings[] = {
42 #define _(sym,string) string,
44 #undef _
45 };
46 
47 typedef enum
48 {
49 #define _(sym,str) IPSEC_IF_OUTPUT_ERROR_##sym,
51 #undef _
54 
55 typedef struct
56 {
60 
61 u8 *
62 format_ipsec_if_tx_trace (u8 * s, va_list * args)
63 {
64  CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
65  CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
66  ipsec_if_tx_trace_t *t = va_arg (*args, ipsec_if_tx_trace_t *);
67 
68  s = format (s, "IPSec: spi %u seq %u", t->spi, t->seq);
69  return s;
70 }
71 
72 static uword
74  vlib_frame_t * from_frame)
75 {
76  ipsec_main_t *im = &ipsec_main;
77  vnet_main_t *vnm = im->vnet_main;
79  u32 *from, *to_next = 0, next_index;
80  u32 n_left_from, sw_if_index0, last_sw_if_index = ~0;
81  u32 thread_index = vm->thread_index;
82  u32 n_bytes = 0, n_packets = 0;
83 
84  from = vlib_frame_vector_args (from_frame);
85  n_left_from = from_frame->n_vectors;
86  next_index = node->cached_next_index;
87 
88  while (n_left_from > 0)
89  {
90  u32 n_left_to_next;
91 
92  vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
93 
94  while (n_left_from > 0 && n_left_to_next > 0)
95  {
96  u32 bi0, next0, len0;
97  vlib_buffer_t *b0;
100 
101  bi0 = to_next[0] = from[0];
102  from += 1;
103  n_left_from -= 1;
104  to_next += 1;
105  n_left_to_next -= 1;
106  b0 = vlib_get_buffer (vm, bi0);
107  sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_TX];
108  hi0 = vnet_get_sup_hw_interface (vnm, sw_if_index0);
110  vnet_buffer (b0)->ipsec.sad_index = t0->output_sa_index;
111  next0 = IPSEC_OUTPUT_NEXT_ESP_ENCRYPT;
112 
113  len0 = vlib_buffer_length_in_chain (vm, b0);
114 
115  if (PREDICT_TRUE (sw_if_index0 == last_sw_if_index))
116  {
117  n_packets++;
118  n_bytes += len0;
119  }
120  else
121  {
124  thread_index, sw_if_index0,
125  n_packets, n_bytes);
126  last_sw_if_index = sw_if_index0;
127  n_packets = 1;
128  n_bytes = len0;
129  }
130 
131  if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
132  {
133  ipsec_if_tx_trace_t *tr =
134  vlib_add_trace (vm, node, b0, sizeof (*tr));
135  ipsec_sa_t *sa0 =
137  tr->spi = sa0->spi;
138  tr->seq = sa0->seq;
139  }
140 
141  vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
142  n_left_to_next, bi0, next0);
143  }
144  vlib_put_next_frame (vm, node, next_index, n_left_to_next);
145  }
146 
147  if (last_sw_if_index != ~0)
148  {
151  thread_index,
152  last_sw_if_index, n_packets, n_bytes);
153  }
154 
155  return from_frame->n_vectors;
156 }
157 
158 
159 static clib_error_t *
161 {
162  ipsec_main_t *im = &ipsec_main;
163  clib_error_t *err = 0;
166  ipsec_sa_t *sa;
167 
168  hi = vnet_get_hw_interface (vnm, hw_if_index);
170 
172  {
173  ASSERT (im->cb.check_support_cb);
174 
175  sa = pool_elt_at_index (im->sad, t->input_sa_index);
176 
177  err = im->cb.check_support_cb (sa);
178  if (err)
179  return err;
180 
181  if (im->cb.add_del_sa_sess_cb)
182  {
183  err = im->cb.add_del_sa_sess_cb (t->input_sa_index, 1);
184  if (err)
185  return err;
186  }
187 
188  sa = pool_elt_at_index (im->sad, t->output_sa_index);
189 
190  err = im->cb.check_support_cb (sa);
191  if (err)
192  return err;
193 
194  if (im->cb.add_del_sa_sess_cb)
195  {
196  err = im->cb.add_del_sa_sess_cb (t->output_sa_index, 1);
197  if (err)
198  return err;
199  }
200 
201  vnet_hw_interface_set_flags (vnm, hw_if_index,
203  }
204  else
205  {
206  vnet_hw_interface_set_flags (vnm, hw_if_index, 0 /* down */ );
207 
208  sa = pool_elt_at_index (im->sad, t->input_sa_index);
209 
210  if (im->cb.add_del_sa_sess_cb)
211  {
212  err = im->cb.add_del_sa_sess_cb (t->input_sa_index, 0);
213  if (err)
214  return err;
215  }
216 
217  sa = pool_elt_at_index (im->sad, t->output_sa_index);
218 
219  if (im->cb.add_del_sa_sess_cb)
220  {
221  err = im->cb.add_del_sa_sess_cb (t->output_sa_index, 0);
222  if (err)
223  return err;
224  }
225  }
226 
227  return /* no error */ 0;
228 }
229 
230 
231 /* *INDENT-OFF* */
232 VNET_DEVICE_CLASS (ipsec_device_class, static) =
233 {
234  .name = "IPSec",
235  .format_device_name = format_ipsec_name,
236  .format_tx_trace = format_ipsec_if_tx_trace,
237  .tx_function = ipsec_if_tx_node_fn,
238  .tx_function_n_errors = IPSEC_IF_TX_N_ERROR,
239  .tx_function_error_strings = ipsec_if_tx_error_strings,
240  .admin_up_down_function = ipsec_admin_up_down_function,
241 };
242 /* *INDENT-ON* */
243 
244 /* *INDENT-OFF* */
245 VNET_HW_INTERFACE_CLASS (ipsec_hw_class) =
246 {
247  .name = "IPSec",
248  .build_rewrite = default_build_rewrite,
250 };
251 /* *INDENT-ON* */
252 
253 static int
255 {
256  vnet_main_t *vnm = vnet_get_main ();
257  ASSERT (vlib_get_thread_index () == 0);
258 
259  return ipsec_add_del_tunnel_if_internal (vnm, a, NULL);
260 }
261 
262 int
264 {
266  (u8 *) args, sizeof (*args));
267  return 0;
268 }
269 
270 int
273  u32 * sw_if_index)
274 {
276  ipsec_main_t *im = &ipsec_main;
278  u32 hw_if_index = ~0;
279  uword *p;
280  ipsec_sa_t *sa;
281  u32 dev_instance;
282  u32 slot;
283 
284  u64 key = (u64) args->remote_ip.as_u32 << 32 | (u64) args->remote_spi;
285  p = hash_get (im->ipsec_if_pool_index_by_key, key);
286 
287  if (args->is_add)
288  {
289  /* check if same src/dst pair exists */
290  if (p)
291  return VNET_API_ERROR_INVALID_VALUE;
292 
294  memset (t, 0, sizeof (*t));
295 
296  dev_instance = t - im->tunnel_interfaces;
297  if (args->renumber)
298  t->show_instance = args->show_instance;
299  else
300  t->show_instance = dev_instance;
301 
303  {
304  pool_put (im->tunnel_interfaces, t);
305  return VNET_API_ERROR_INSTANCE_IN_USE;
306  }
307 
309  dev_instance);
310 
311  pool_get (im->sad, sa);
312  memset (sa, 0, sizeof (*sa));
313  t->input_sa_index = sa - im->sad;
314  sa->spi = args->remote_spi;
315  sa->tunnel_src_addr.ip4.as_u32 = args->remote_ip.as_u32;
316  sa->tunnel_dst_addr.ip4.as_u32 = args->local_ip.as_u32;
317  sa->is_tunnel = 1;
318  sa->use_esn = args->esn;
319  sa->use_anti_replay = args->anti_replay;
320  sa->integ_alg = args->integ_alg;
321  if (args->remote_integ_key_len <= sizeof (args->remote_integ_key))
322  {
325  args->remote_integ_key_len);
326  }
327  sa->crypto_alg = args->crypto_alg;
328  if (args->remote_crypto_key_len <= sizeof (args->remote_crypto_key))
329  {
332  args->remote_crypto_key_len);
333  }
334 
335  pool_get (im->sad, sa);
336  memset (sa, 0, sizeof (*sa));
337  t->output_sa_index = sa - im->sad;
338  sa->spi = args->local_spi;
339  sa->tunnel_src_addr.ip4.as_u32 = args->local_ip.as_u32;
340  sa->tunnel_dst_addr.ip4.as_u32 = args->remote_ip.as_u32;
341  sa->is_tunnel = 1;
342  sa->use_esn = args->esn;
343  sa->use_anti_replay = args->anti_replay;
344  sa->integ_alg = args->integ_alg;
345  if (args->local_integ_key_len <= sizeof (args->local_integ_key))
346  {
349  args->local_integ_key_len);
350  }
351  sa->crypto_alg = args->crypto_alg;
352  if (args->local_crypto_key_len <= sizeof (args->local_crypto_key))
353  {
356  args->local_crypto_key_len);
357  }
358 
360  t - im->tunnel_interfaces);
361 
362  hw_if_index = vnet_register_interface (vnm, ipsec_device_class.index,
363  t - im->tunnel_interfaces,
364  ipsec_hw_class.index,
365  t - im->tunnel_interfaces);
366 
367  hi = vnet_get_hw_interface (vnm, hw_if_index);
368 
371  IPSEC_OUTPUT_NEXT_ESP_ENCRYPT);
372 
373  ASSERT (slot == IPSEC_OUTPUT_NEXT_ESP_ENCRYPT);
374 
375  t->hw_if_index = hw_if_index;
376 
377  vnet_feature_enable_disable ("interface-output", "ipsec-if-output",
378  hi->sw_if_index, 1, 0, 0);
379 
380  /*1st interface, register protocol */
381  if (pool_elts (im->tunnel_interfaces) == 1)
382  ip4_register_protocol (IP_PROTOCOL_IPSEC_ESP,
383  ipsec_if_input_node.index);
384 
385  }
386  else
387  {
388  /* check if exists */
389  if (!p)
390  return VNET_API_ERROR_INVALID_VALUE;
391 
392  t = pool_elt_at_index (im->tunnel_interfaces, p[0]);
393  hi = vnet_get_hw_interface (vnm, t->hw_if_index);
394  vnet_sw_interface_set_flags (vnm, hi->sw_if_index, 0); /* admin down */
395 
396  vnet_feature_enable_disable ("interface-output", "ipsec-if-output",
397  hi->sw_if_index, 0, 0, 0);
398 
400 
401  /* delete input and output SA */
402 
403  sa = pool_elt_at_index (im->sad, t->input_sa_index);
404  pool_put (im->sad, sa);
405 
406  sa = pool_elt_at_index (im->sad, t->output_sa_index);
407  pool_put (im->sad, sa);
408 
411 
412  pool_put (im->tunnel_interfaces, t);
413  }
414 
415  if (sw_if_index)
416  *sw_if_index = hi->sw_if_index;
417 
418  return 0;
419 }
420 
421 int
424 {
425  ipsec_tunnel_if_t *t = 0;
426  ipsec_main_t *im = &ipsec_main;
427  uword *p;
428  ipsec_sa_t *sa;
429  u64 key;
430  u32 isa, osa;
431 
432  p = hash_get (im->sa_index_by_sa_id, args->local_sa_id);
433  if (!p)
434  return VNET_API_ERROR_INVALID_VALUE;
435  isa = p[0];
436 
437  p = hash_get (im->sa_index_by_sa_id, args->remote_sa_id);
438  if (!p)
439  return VNET_API_ERROR_INVALID_VALUE;
440  osa = p[0];
441  sa = pool_elt_at_index (im->sad, p[0]);
442 
443  if (sa->is_tunnel)
444  key = (u64) sa->tunnel_dst_addr.ip4.as_u32 << 32 | (u64) sa->spi;
445  else
446  key = (u64) args->remote_ip.as_u32 << 32 | (u64) sa->spi;
447 
448  p = hash_get (im->ipsec_if_pool_index_by_key, key);
449 
450  if (args->is_add)
451  {
452  /* check if same src/dst pair exists */
453  if (p)
454  return VNET_API_ERROR_INVALID_VALUE;
455 
457  memset (t, 0, sizeof (*t));
458 
459  t->input_sa_index = isa;
460  t->output_sa_index = osa;
461  t->hw_if_index = ~0;
463  t - im->tunnel_interfaces);
464 
465  /*1st interface, register protocol */
466  if (pool_elts (im->tunnel_interfaces) == 1)
467  ip4_register_protocol (IP_PROTOCOL_IPSEC_ESP,
468  ipsec_if_input_node.index);
469  }
470  else
471  {
472  /* check if exists */
473  if (!p)
474  return VNET_API_ERROR_INVALID_VALUE;
475 
476  t = pool_elt_at_index (im->tunnel_interfaces, p[0]);
478  pool_put (im->tunnel_interfaces, t);
479  }
480  return 0;
481 }
482 
483 int
485  ipsec_if_set_key_type_t type, u8 alg, u8 * key)
486 {
487  ipsec_main_t *im = &ipsec_main;
490  ipsec_sa_t *sa;
491 
492  hi = vnet_get_hw_interface (vnm, hw_if_index);
494 
496  return VNET_API_ERROR_SYSCALL_ERROR_1;
497 
499  {
500  sa = pool_elt_at_index (im->sad, t->output_sa_index);
501  sa->crypto_alg = alg;
502  sa->crypto_key_len = vec_len (key);
503  clib_memcpy (sa->crypto_key, key, vec_len (key));
504  }
505  else if (type == IPSEC_IF_SET_KEY_TYPE_LOCAL_INTEG)
506  {
507  sa = pool_elt_at_index (im->sad, t->output_sa_index);
508  sa->integ_alg = alg;
509  sa->integ_key_len = vec_len (key);
510  clib_memcpy (sa->integ_key, key, vec_len (key));
511  }
512  else if (type == IPSEC_IF_SET_KEY_TYPE_REMOTE_CRYPTO)
513  {
514  sa = pool_elt_at_index (im->sad, t->input_sa_index);
515  sa->crypto_alg = alg;
516  sa->crypto_key_len = vec_len (key);
517  clib_memcpy (sa->crypto_key, key, vec_len (key));
518  }
519  else if (type == IPSEC_IF_SET_KEY_TYPE_REMOTE_INTEG)
520  {
521  sa = pool_elt_at_index (im->sad, t->input_sa_index);
522  sa->integ_alg = alg;
523  sa->integ_key_len = vec_len (key);
524  clib_memcpy (sa->integ_key, key, vec_len (key));
525  }
526  else
527  return VNET_API_ERROR_INVALID_VALUE;
528 
529  return 0;
530 }
531 
532 
533 int
534 ipsec_set_interface_sa (vnet_main_t * vnm, u32 hw_if_index, u32 sa_id,
535  u8 is_outbound)
536 {
537  ipsec_main_t *im = &ipsec_main;
540  ipsec_sa_t *sa, *old_sa;
541  u32 sa_index, old_sa_index;
542  uword *p;
543 
544  hi = vnet_get_hw_interface (vnm, hw_if_index);
546 
547  sa_index = ipsec_get_sa_index_by_sa_id (sa_id);
548  if (sa_index == ~0)
549  {
550  clib_warning ("SA with ID %u not found", sa_id);
551  return VNET_API_ERROR_INVALID_VALUE;
552  }
553 
554  if (ipsec_is_sa_used (sa_index))
555  {
556  clib_warning ("SA with ID %u is already in use", sa_id);
557  return VNET_API_ERROR_INVALID_VALUE;
558  }
559 
560  sa = pool_elt_at_index (im->sad, sa_index);
561  if (sa->is_tunnel_ip6)
562  {
563  clib_warning ("IPsec interface not supported with IPv6 endpoints");
564  return VNET_API_ERROR_UNIMPLEMENTED;
565  }
566 
567  if (!is_outbound)
568  {
569  u64 key;
570 
571  old_sa_index = t->input_sa_index;
572  old_sa = pool_elt_at_index (im->sad, old_sa_index);
573 
574  /* unset old inbound hash entry. packets should stop arriving */
575  key =
576  (u64) old_sa->tunnel_src_addr.ip4.as_u32 << 32 | (u64) old_sa->spi;
577  p = hash_get (im->ipsec_if_pool_index_by_key, key);
578  if (p)
580 
581  /* set new inbound SA, then set new hash entry */
582  t->input_sa_index = sa_index;
583  key = (u64) sa->tunnel_src_addr.ip4.as_u32 << 32 | (u64) sa->spi;
585  }
586  else
587  {
588  old_sa_index = t->output_sa_index;
589  old_sa = pool_elt_at_index (im->sad, old_sa_index);
590  t->output_sa_index = sa_index;
591  }
592 
593  /* remove sa_id to sa_index mapping on old SA */
594  if (ipsec_get_sa_index_by_sa_id (old_sa->id) == old_sa_index)
595  hash_unset (im->sa_index_by_sa_id, old_sa->id);
596 
597  if (im->cb.add_del_sa_sess_cb)
598  {
599  clib_error_t *err;
600 
601  err = im->cb.add_del_sa_sess_cb (old_sa_index, 0);
602  if (err)
603  return VNET_API_ERROR_SYSCALL_ERROR_1;
604  }
605 
606  pool_put (im->sad, old_sa);
607 
608  return 0;
609 }
610 
611 
612 clib_error_t *
614 {
615  ipsec_main_t *im = &ipsec_main;
616 
617  im->ipsec_if_pool_index_by_key = hash_create (0, sizeof (uword));
618  im->ipsec_if_real_dev_by_show_dev = hash_create (0, sizeof (uword));
619 
620  return 0;
621 }
622 
624 
625 
626 /*
627  * fd.io coding-style-patch-verification: ON
628  *
629  * Local Variables:
630  * eval: (c-set-style "gnu")
631  * End:
632  */
vmrglw vmrglh hi
static char * ipsec_if_tx_error_strings[]
Definition: ipsec_if.c:41
VNET_DEVICE_CLASS(ipsec_device_class, static)
#define hash_set(h, key, value)
Definition: hash.h:255
#define CLIB_UNUSED(x)
Definition: clib.h:79
ipsec_tunnel_if_t * tunnel_interfaces
Definition: ipsec.h:267
ip46_address_t tunnel_src_addr
Definition: ipsec.h:131
clib_error_t * vnet_hw_interface_set_flags(vnet_main_t *vnm, u32 hw_if_index, u32 flags)
Definition: interface.c:541
#define hash_unset(h, key)
Definition: hash.h:261
a
Definition: bitmap.h:538
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:213
u32 id
Definition: ipsec.h:113
vnet_main_t * vnet_get_main(void)
Definition: misc.c:47
static vnet_hw_interface_t * vnet_get_sup_hw_interface(vnet_main_t *vnm, u32 sw_if_index)
vnet_interface_main_t interface_main
Definition: vnet.h:56
#define PREDICT_TRUE(x)
Definition: clib.h:106
unsigned long u64
Definition: types.h:89
#define NULL
Definition: clib.h:55
int ipsec_set_interface_sa(vnet_main_t *vnm, u32 hw_if_index, u32 sa_id, u8 is_outbound)
Definition: ipsec_if.c:534
ipsec_integ_alg_t integ_alg
Definition: ipsec.h:121
static vnet_hw_interface_t * vnet_get_hw_interface(vnet_main_t *vnm, u32 hw_if_index)
u32 thread_index
Definition: main.h:179
int ipsec_add_del_tunnel_if(ipsec_add_del_tunnel_args_t *args)
Definition: ipsec_if.c:263
u8 is_tunnel
Definition: ipsec.h:128
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:419
u32 ipsec_get_sa_index_by_sa_id(u32 sa_id)
Definition: ipsec.c:33
#define VNET_HW_INTERFACE_FLAG_LINK_UP
Definition: interface.h:458
void ip4_register_protocol(u32 protocol, u32 node_index)
Definition: ip4_forward.c:1584
static uword vlib_buffer_length_in_chain(vlib_main_t *vm, vlib_buffer_t *b)
Get length in bytes of the buffer chain.
Definition: buffer_funcs.h:250
#define pool_get(P, E)
Allocate an object E from a pool P (unspecified alignment).
Definition: pool.h:228
uword * ipsec_if_pool_index_by_key
Definition: ipsec.h:285
unsigned char u8
Definition: types.h:56
u8 crypto_key[128]
Definition: ipsec.h:119
u32 spi
Definition: ipsec.h:114
clib_error_t * ipsec_tunnel_if_init(vlib_main_t *vm)
Definition: ipsec_if.c:613
u8 integ_key[128]
Definition: ipsec.h:123
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:156
ipsec_main_t ipsec_main
Definition: ipsec.c:30
vlib_combined_counter_main_t * combined_sw_if_counters
Definition: interface.h:811
u8 use_esn
Definition: ipsec.h:125
ip4_address_t remote_ip
Definition: ipsec.h:162
uword vlib_node_add_next_with_slot(vlib_main_t *vm, uword node_index, uword next_node_index, uword slot)
Definition: node.c:205
ipsec_main_callbacks_t cb
Definition: ipsec.h:301
int ipsec_set_interface_key(vnet_main_t *vnm, u32 hw_if_index, ipsec_if_set_key_type_t type, u8 alg, u8 *key)
Definition: ipsec_if.c:484
unsigned int u32
Definition: types.h:88
static uword ipsec_if_tx_node_fn(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame)
Definition: ipsec_if.c:73
u32 vnet_register_interface(vnet_main_t *vnm, u32 dev_class_index, u32 dev_instance, u32 hw_class_index, u32 hw_instance)
Definition: interface.c:758
static clib_error_t * ipsec_admin_up_down_function(vnet_main_t *vnm, u32 hw_if_index, u32 flags)
Definition: ipsec_if.c:160
#define hash_get(h, key)
Definition: hash.h:249
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:464
#define foreach_ipsec_if_tx_error
Definition: ipsec_if.c:38
vlib_main_t * vlib_main
Definition: vnet.h:80
u8 is_tunnel_ip6
Definition: ipsec.h:129
clib_error_t *(* check_support_cb)(ipsec_sa_t *sa)
Definition: ipsec.h:257
vnet_main_t * vnet_main
Definition: ipsec.h:276
#define pool_put(P, E)
Free an object E in pool P.
Definition: pool.h:274
#define PREDICT_FALSE(x)
Definition: clib.h:105
#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:364
ip46_address_t tunnel_dst_addr
Definition: ipsec.h:132
u32 flags
Definition: vhost_user.h:110
ipsec_if_tx_error_t
Definition: ipsec_if.c:47
#define pool_get_aligned(P, E, A)
Allocate an object E from a pool P (general version).
Definition: pool.h:188
ipsec_if_set_key_type_t
Definition: ipsec.h:188
ipsec_crypto_alg_t crypto_alg
Definition: ipsec.h:165
u16 n_vectors
Definition: node.h:380
static_always_inline uword vlib_get_thread_index(void)
Definition: threads.h:221
vlib_main_t * vm
Definition: buffer.c:294
u32 esp_encrypt_node_index
Definition: ipsec.h:290
u8 * format_ipsec_if_tx_trace(u8 *s, va_list *args)
Definition: ipsec_if.c:62
void vl_api_rpc_call_main_thread(void *fp, u8 *data, u32 data_length)
Definition: vlib_api.c:638
vlib_node_registration_t ipsec_if_input_node
(constructor) VLIB_REGISTER_NODE (ipsec_if_input_node)
Definition: ipsec_if_in.c:224
#define clib_warning(format, args...)
Definition: error.h:59
#define clib_memcpy(a, b, c)
Definition: string.h:75
uword * sa_index_by_sa_id
Definition: ipsec.h:284
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
u32 output_sa_index
Definition: ipsec.h:249
uword * ipsec_if_real_dev_by_show_dev
Definition: ipsec.h:286
u8 * default_build_rewrite(vnet_main_t *vnm, u32 sw_if_index, vnet_link_t link_type, const void *dst_address)
Return a complete, zero-length (aka dummy) rewrite.
Definition: interface.c:1592
int ipsec_add_del_ipsec_gre_tunnel(vnet_main_t *vnm, ipsec_add_del_ipsec_gre_tunnel_args_t *args)
Definition: ipsec_if.c:422
#define hash_create(elts, value_bytes)
Definition: hash.h:696
u8 ipsec_is_sa_used(u32 sa_index)
Definition: ipsec.c:384
u16 cached_next_index
Next frame index that vector arguments were last enqueued to last time this node ran.
Definition: node.h:492
#define VNET_SW_INTERFACE_FLAG_ADMIN_UP
Definition: interface.h:661
#define ASSERT(truth)
static int ipsec_add_del_tunnel_if_rpc_callback(ipsec_add_del_tunnel_args_t *a)
Definition: ipsec_if.c:254
ipsec_integ_alg_t integ_alg
Definition: ipsec.h:170
ip4_address_t local_ip
Definition: ipsec.h:162
ipsec_sa_t * sad
Definition: ipsec.h:264
u8 integ_key_len
Definition: ipsec.h:122
u32 show_instance
Definition: ipsec.h:251
int ipsec_add_del_tunnel_if_internal(vnet_main_t *vnm, ipsec_add_del_tunnel_args_t *args, u32 *sw_if_index)
Definition: ipsec_if.c:271
void vnet_delete_hw_interface(vnet_main_t *vnm, u32 hw_if_index)
Definition: interface.c:968
u32 input_sa_index
Definition: ipsec.h:248
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 crypto_key_len
Definition: ipsec.h:118
Definition: defs.h:47
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
VNET_HW_INTERFACE_CLASS(ipsec_hw_class)
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
a point 2 point interface
Definition: interface.h:345
#define vnet_buffer(b)
Definition: buffer.h:360
ipsec_crypto_alg_t crypto_alg
Definition: ipsec.h:117
static u8 * format_ipsec_name(u8 *s, va_list *args)
Definition: ipsec_if.c:28
clib_error_t *(* add_del_sa_sess_cb)(u32 sa_index, u8 is_add)
Definition: ipsec.h:256
clib_error_t * vnet_sw_interface_set_flags(vnet_main_t *vnm, u32 sw_if_index, u32 flags)
Definition: interface.c:549
#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
u8 use_anti_replay
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:57
int vnet_feature_enable_disable(const char *arc_name, const char *node_name, u32 sw_if_index, int enable_disable, void *feature_config, u32 n_feature_config_bytes)
Definition: feature.c:233
static uword pool_elts(void *v)
Number of active elements in a pool.
Definition: pool.h:128