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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  sa->udp_encap = args->udp_encap;
322  if (args->remote_integ_key_len <= sizeof (args->remote_integ_key))
323  {
326  args->remote_integ_key_len);
327  }
328  sa->crypto_alg = args->crypto_alg;
329  if (args->remote_crypto_key_len <= sizeof (args->remote_crypto_key))
330  {
333  args->remote_crypto_key_len);
334  }
335 
336  pool_get (im->sad, sa);
337  memset (sa, 0, sizeof (*sa));
338  t->output_sa_index = sa - im->sad;
339  sa->spi = args->local_spi;
340  sa->tunnel_src_addr.ip4.as_u32 = args->local_ip.as_u32;
341  sa->tunnel_dst_addr.ip4.as_u32 = args->remote_ip.as_u32;
342  sa->is_tunnel = 1;
343  sa->use_esn = args->esn;
344  sa->use_anti_replay = args->anti_replay;
345  sa->integ_alg = args->integ_alg;
346  sa->udp_encap = args->udp_encap;
347  if (args->local_integ_key_len <= sizeof (args->local_integ_key))
348  {
351  args->local_integ_key_len);
352  }
353  sa->crypto_alg = args->crypto_alg;
354  if (args->local_crypto_key_len <= sizeof (args->local_crypto_key))
355  {
358  args->local_crypto_key_len);
359  }
360 
362  t - im->tunnel_interfaces);
363 
364  hw_if_index = vnet_register_interface (vnm, ipsec_device_class.index,
365  t - im->tunnel_interfaces,
366  ipsec_hw_class.index,
367  t - im->tunnel_interfaces);
368 
369  hi = vnet_get_hw_interface (vnm, hw_if_index);
370 
373  IPSEC_OUTPUT_NEXT_ESP_ENCRYPT);
374 
375  ASSERT (slot == IPSEC_OUTPUT_NEXT_ESP_ENCRYPT);
376 
377  t->hw_if_index = hw_if_index;
378 
379  vnet_feature_enable_disable ("interface-output", "ipsec-if-output",
380  hi->sw_if_index, 1, 0, 0);
381 
382  /*1st interface, register protocol */
383  if (pool_elts (im->tunnel_interfaces) == 1)
384  ip4_register_protocol (IP_PROTOCOL_IPSEC_ESP,
385  ipsec_if_input_node.index);
386 
387  }
388  else
389  {
390  /* check if exists */
391  if (!p)
392  return VNET_API_ERROR_INVALID_VALUE;
393 
394  t = pool_elt_at_index (im->tunnel_interfaces, p[0]);
395  hi = vnet_get_hw_interface (vnm, t->hw_if_index);
396  vnet_sw_interface_set_flags (vnm, hi->sw_if_index, 0); /* admin down */
397 
398  vnet_feature_enable_disable ("interface-output", "ipsec-if-output",
399  hi->sw_if_index, 0, 0, 0);
400 
402 
403  /* delete input and output SA */
404 
405  sa = pool_elt_at_index (im->sad, t->input_sa_index);
406  pool_put (im->sad, sa);
407 
408  sa = pool_elt_at_index (im->sad, t->output_sa_index);
409  pool_put (im->sad, sa);
410 
413 
414  pool_put (im->tunnel_interfaces, t);
415  }
416 
417  if (sw_if_index)
418  *sw_if_index = hi->sw_if_index;
419 
420  return 0;
421 }
422 
423 int
426 {
427  ipsec_tunnel_if_t *t = 0;
428  ipsec_main_t *im = &ipsec_main;
429  uword *p;
430  ipsec_sa_t *sa;
431  u64 key;
432  u32 isa, osa;
433 
434  p = hash_get (im->sa_index_by_sa_id, args->local_sa_id);
435  if (!p)
436  return VNET_API_ERROR_INVALID_VALUE;
437  isa = p[0];
438 
439  p = hash_get (im->sa_index_by_sa_id, args->remote_sa_id);
440  if (!p)
441  return VNET_API_ERROR_INVALID_VALUE;
442  osa = p[0];
443  sa = pool_elt_at_index (im->sad, p[0]);
444 
445  if (sa->is_tunnel)
446  key = (u64) sa->tunnel_dst_addr.ip4.as_u32 << 32 | (u64) sa->spi;
447  else
448  key = (u64) args->remote_ip.as_u32 << 32 | (u64) sa->spi;
449 
450  p = hash_get (im->ipsec_if_pool_index_by_key, key);
451 
452  if (args->is_add)
453  {
454  /* check if same src/dst pair exists */
455  if (p)
456  return VNET_API_ERROR_INVALID_VALUE;
457 
459  memset (t, 0, sizeof (*t));
460 
461  t->input_sa_index = isa;
462  t->output_sa_index = osa;
463  t->hw_if_index = ~0;
465  t - im->tunnel_interfaces);
466 
467  /*1st interface, register protocol */
468  if (pool_elts (im->tunnel_interfaces) == 1)
469  ip4_register_protocol (IP_PROTOCOL_IPSEC_ESP,
470  ipsec_if_input_node.index);
471  }
472  else
473  {
474  /* check if exists */
475  if (!p)
476  return VNET_API_ERROR_INVALID_VALUE;
477 
478  t = pool_elt_at_index (im->tunnel_interfaces, p[0]);
480  pool_put (im->tunnel_interfaces, t);
481  }
482  return 0;
483 }
484 
485 int
487  ipsec_if_set_key_type_t type, u8 alg, u8 * key)
488 {
489  ipsec_main_t *im = &ipsec_main;
492  ipsec_sa_t *sa;
493 
494  hi = vnet_get_hw_interface (vnm, hw_if_index);
496 
498  return VNET_API_ERROR_SYSCALL_ERROR_1;
499 
501  {
502  sa = pool_elt_at_index (im->sad, t->output_sa_index);
503  sa->crypto_alg = alg;
504  sa->crypto_key_len = vec_len (key);
505  clib_memcpy (sa->crypto_key, key, vec_len (key));
506  }
507  else if (type == IPSEC_IF_SET_KEY_TYPE_LOCAL_INTEG)
508  {
509  sa = pool_elt_at_index (im->sad, t->output_sa_index);
510  sa->integ_alg = alg;
511  sa->integ_key_len = vec_len (key);
512  clib_memcpy (sa->integ_key, key, vec_len (key));
513  }
514  else if (type == IPSEC_IF_SET_KEY_TYPE_REMOTE_CRYPTO)
515  {
516  sa = pool_elt_at_index (im->sad, t->input_sa_index);
517  sa->crypto_alg = alg;
518  sa->crypto_key_len = vec_len (key);
519  clib_memcpy (sa->crypto_key, key, vec_len (key));
520  }
521  else if (type == IPSEC_IF_SET_KEY_TYPE_REMOTE_INTEG)
522  {
523  sa = pool_elt_at_index (im->sad, t->input_sa_index);
524  sa->integ_alg = alg;
525  sa->integ_key_len = vec_len (key);
526  clib_memcpy (sa->integ_key, key, vec_len (key));
527  }
528  else
529  return VNET_API_ERROR_INVALID_VALUE;
530 
531  return 0;
532 }
533 
534 
535 int
536 ipsec_set_interface_sa (vnet_main_t * vnm, u32 hw_if_index, u32 sa_id,
537  u8 is_outbound)
538 {
539  ipsec_main_t *im = &ipsec_main;
542  ipsec_sa_t *sa, *old_sa;
543  u32 sa_index, old_sa_index;
544  uword *p;
545 
546  hi = vnet_get_hw_interface (vnm, hw_if_index);
548 
549  sa_index = ipsec_get_sa_index_by_sa_id (sa_id);
550  if (sa_index == ~0)
551  {
552  clib_warning ("SA with ID %u not found", sa_id);
553  return VNET_API_ERROR_INVALID_VALUE;
554  }
555 
556  if (ipsec_is_sa_used (sa_index))
557  {
558  clib_warning ("SA with ID %u is already in use", sa_id);
559  return VNET_API_ERROR_INVALID_VALUE;
560  }
561 
562  sa = pool_elt_at_index (im->sad, sa_index);
563  if (sa->is_tunnel_ip6)
564  {
565  clib_warning ("IPsec interface not supported with IPv6 endpoints");
566  return VNET_API_ERROR_UNIMPLEMENTED;
567  }
568 
569  if (!is_outbound)
570  {
571  u64 key;
572 
573  old_sa_index = t->input_sa_index;
574  old_sa = pool_elt_at_index (im->sad, old_sa_index);
575 
576  /* unset old inbound hash entry. packets should stop arriving */
577  key =
578  (u64) old_sa->tunnel_src_addr.ip4.as_u32 << 32 | (u64) old_sa->spi;
579  p = hash_get (im->ipsec_if_pool_index_by_key, key);
580  if (p)
582 
583  /* set new inbound SA, then set new hash entry */
584  t->input_sa_index = sa_index;
585  key = (u64) sa->tunnel_src_addr.ip4.as_u32 << 32 | (u64) sa->spi;
587  }
588  else
589  {
590  old_sa_index = t->output_sa_index;
591  old_sa = pool_elt_at_index (im->sad, old_sa_index);
592  t->output_sa_index = sa_index;
593  }
594 
595  /* remove sa_id to sa_index mapping on old SA */
596  if (ipsec_get_sa_index_by_sa_id (old_sa->id) == old_sa_index)
597  hash_unset (im->sa_index_by_sa_id, old_sa->id);
598 
599  if (im->cb.add_del_sa_sess_cb)
600  {
601  clib_error_t *err;
602 
603  err = im->cb.add_del_sa_sess_cb (old_sa_index, 0);
604  if (err)
605  return VNET_API_ERROR_SYSCALL_ERROR_1;
606  }
607 
608  pool_put (im->sad, old_sa);
609 
610  return 0;
611 }
612 
613 
614 clib_error_t *
616 {
617  ipsec_main_t *im = &ipsec_main;
618 
619  im->ipsec_if_pool_index_by_key = hash_create (0, sizeof (uword));
620  im->ipsec_if_real_dev_by_show_dev = hash_create (0, sizeof (uword));
621 
622  return 0;
623 }
624 
626 
627 
628 /*
629  * fd.io coding-style-patch-verification: ON
630  *
631  * Local Variables:
632  * eval: (c-set-style "gnu")
633  * End:
634  */
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:81
ipsec_tunnel_if_t * tunnel_interfaces
Definition: ipsec.h:268
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:469
#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:204
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:108
unsigned long u64
Definition: types.h:89
#define NULL
Definition: clib.h:57
int ipsec_set_interface_sa(vnet_main_t *vnm, u32 hw_if_index, u32 sa_id, u8 is_outbound)
Definition: ipsec_if.c:536
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:494
void ip4_register_protocol(u32 protocol, u32 node_index)
Definition: ip4_forward.c:1684
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:263
#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:286
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:615
memset(h->entries, 0, sizeof(h->entries[0])*entries)
u8 integ_key[128]
Definition: ipsec.h:123
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:163
ipsec_main_t ipsec_main
Definition: ipsec.c:30
u32 sw_if_index
Definition: vxlan_gbp.api:39
vlib_combined_counter_main_t * combined_sw_if_counters
Definition: interface.h:855
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:302
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:486
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:703
static clib_error_t * ipsec_admin_up_down_function(vnet_main_t *vnm, u32 hw_if_index, u32 flags)
Definition: ipsec_if.c:160
u8 udp_encap
Definition: ipsec.h:130
#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:258
vnet_main_t * vnet_main
Definition: ipsec.h:277
#define pool_put(P, E)
Free an object E in pool P.
Definition: pool.h:274
#define PREDICT_FALSE(x)
Definition: clib.h:107
#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:115
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:189
ipsec_crypto_alg_t crypto_alg
Definition: ipsec.h:165
u16 n_vectors
Definition: node.h:401
static_always_inline uword vlib_get_thread_index(void)
Definition: threads.h:211
vlib_main_t * vm
Definition: buffer.c:294
u32 esp_encrypt_node_index
Definition: ipsec.h:291
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:285
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:455
u32 output_sa_index
Definition: ipsec.h:250
uword * ipsec_if_real_dev_by_show_dev
Definition: ipsec.h:287
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:1513
int ipsec_add_del_ipsec_gre_tunnel(vnet_main_t *vnm, ipsec_add_del_ipsec_gre_tunnel_args_t *args)
Definition: ipsec_if.c:424
#define hash_create(elts, value_bytes)
Definition: hash.h:696
u8 ipsec_is_sa_used(u32 sa_index)
Definition: ipsec.c:386
u16 cached_next_index
Next frame index that vector arguments were last enqueued to last time this node ran.
Definition: node.h:513
#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:265
u8 integ_key_len
Definition: ipsec.h:122
u32 show_instance
Definition: ipsec.h:252
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:913
u32 input_sa_index
Definition: ipsec.h:249
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:57
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:381
#define vnet_buffer(b)
Definition: buffer.h:344
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:257
clib_error_t * vnet_sw_interface_set_flags(vnet_main_t *vnm, u32 sw_if_index, u32 flags)
Definition: interface.c:477
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:59
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:116
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:58
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