FD.io VPP  v21.06-3-gbb25fbf28
Vector Packet Processing
vxlan.c
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2015 Cisco and/or its affiliates.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at:
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 #include <vnet/vxlan/vxlan.h>
16 #include <vnet/ip/format.h>
17 #include <vnet/fib/fib_entry.h>
18 #include <vnet/fib/fib_table.h>
20 #include <vnet/mfib/mfib_table.h>
21 #include <vnet/adj/adj_mcast.h>
22 #include <vnet/adj/rewrite.h>
23 #include <vnet/dpo/drop_dpo.h>
24 #include <vnet/interface.h>
25 #include <vnet/flow/flow.h>
26 #include <vnet/udp/udp_local.h>
27 #include <vlib/vlib.h>
28 
29 /**
30  * @file
31  * @brief VXLAN.
32  *
33  * VXLAN provides the features needed to allow L2 bridge domains (BDs)
34  * to span multiple servers. This is done by building an L2 overlay on
35  * top of an L3 network underlay using VXLAN tunnels.
36  *
37  * This makes it possible for servers to be co-located in the same data
38  * center or be separated geographically as long as they are reachable
39  * through the underlay L3 network.
40  *
41  * You can refer to this kind of L2 overlay bridge domain as a VXLAN
42  * (Virtual eXtensible VLAN) segment.
43  */
44 
45 
47 
48 static u32
50 {
51  /* nothing for now */
52  return 0;
53 }
54 
55 static u8 *
56 format_decap_next (u8 * s, va_list * args)
57 {
58  u32 next_index = va_arg (*args, u32);
59 
60  if (next_index == VXLAN_INPUT_NEXT_DROP)
61  return format (s, "drop");
62  else
63  return format (s, "index %d", next_index);
64  return s;
65 }
66 
67 u8 *
68 format_vxlan_tunnel (u8 * s, va_list * args)
69 {
70  vxlan_tunnel_t *t = va_arg (*args, vxlan_tunnel_t *);
71 
72  s = format (s,
73  "[%d] instance %d src %U dst %U src_port %d dst_port %d vni %d "
74  "fib-idx %d sw-if-idx %d ",
77  t->src_port, t->dst_port, t->vni, t->encap_fib_index,
78  t->sw_if_index);
79 
80  s = format (s, "encap-dpo-idx %d ", t->next_dpo.dpoi_index);
81 
82  if (PREDICT_FALSE (t->decap_next_index != VXLAN_INPUT_NEXT_L2_INPUT))
83  s = format (s, "decap-next-%U ", format_decap_next, t->decap_next_index);
84 
86  s = format (s, "mcast-sw-if-idx %d ", t->mcast_sw_if_index);
87 
88  if (t->flow_index != ~0)
89  s = format (s, "flow-index %d [%U]", t->flow_index,
91 
92  return s;
93 }
94 
95 static u8 *
96 format_vxlan_name (u8 * s, va_list * args)
97 {
98  u32 dev_instance = va_arg (*args, u32);
99  vxlan_main_t *vxm = &vxlan_main;
100  vxlan_tunnel_t *t;
101 
102  if (dev_instance == ~0)
103  return format (s, "<cached-unused>");
104 
105  if (dev_instance >= vec_len (vxm->tunnels))
106  return format (s, "<improperly-referenced>");
107 
108  t = pool_elt_at_index (vxm->tunnels, dev_instance);
109 
110  return format (s, "vxlan_tunnel%d", t->user_instance);
111 }
112 
113 static clib_error_t *
115 {
116  u32 hw_flags = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) ?
118  vnet_hw_interface_set_flags (vnm, hw_if_index, hw_flags);
119 
120  return /* no error */ 0;
121 }
122 
123 /* *INDENT-OFF* */
124 VNET_DEVICE_CLASS (vxlan_device_class, static) = {
125  .name = "VXLAN",
126  .format_device_name = format_vxlan_name,
127  .format_tx_trace = format_vxlan_encap_trace,
128  .admin_up_down_function = vxlan_interface_admin_up_down,
129 };
130 /* *INDENT-ON* */
131 
132 static u8 *
133 format_vxlan_header_with_length (u8 * s, va_list * args)
134 {
135  u32 dev_instance = va_arg (*args, u32);
136  s = format (s, "unimplemented dev %u", dev_instance);
137  return s;
138 }
139 
140 /* *INDENT-OFF* */
141 VNET_HW_INTERFACE_CLASS (vxlan_hw_class) = {
142  .name = "VXLAN",
143  .format_header = format_vxlan_header_with_length,
144  .build_rewrite = default_build_rewrite,
145 };
146 /* *INDENT-ON* */
147 
148 static void
150 {
151  u8 is_ip4 = ip46_address_is_ip4 (&t->dst);
152  dpo_id_t dpo = DPO_INVALID;
153  fib_forward_chain_type_t forw_type = is_ip4 ?
155 
156  fib_entry_contribute_forwarding (t->fib_entry_index, forw_type, &dpo);
157 
158  /* vxlan uses the payload hash as the udp source port
159  * hence the packet's hash is unknown
160  * skip single bucket load balance dpo's */
161  while (DPO_LOAD_BALANCE == dpo.dpoi_type)
162  {
163  const load_balance_t *lb;
164  const dpo_id_t *choice;
165 
166  lb = load_balance_get (dpo.dpoi_index);
167  if (lb->lb_n_buckets > 1)
168  break;
169 
170  choice = load_balance_get_bucket_i (lb, 0);
171 
172  if (DPO_RECEIVE == choice->dpoi_type)
173  dpo_copy (&dpo, drop_dpo_get (choice->dpoi_proto));
174  else
175  dpo_copy (&dpo, choice);
176  }
177 
178  u32 encap_index = is_ip4 ?
179  vxlan4_encap_node.index : vxlan6_encap_node.index;
180  dpo_stack_from_node (encap_index, &t->next_dpo, &dpo);
181  dpo_reset (&dpo);
182 }
183 
184 static vxlan_tunnel_t *
186 {
187  ASSERT (FIB_NODE_TYPE_VXLAN_TUNNEL == node->fn_type);
188  return ((vxlan_tunnel_t *) (((char *) node) -
190 }
191 
192 /**
193  * Function definition to backwalk a FIB node -
194  * Here we will restack the new dpo of VXLAN DIP to encap node.
195  */
198 {
201 }
202 
203 /**
204  * Function definition to get a FIB node from its index
205  */
206 static fib_node_t *
208 {
209  vxlan_tunnel_t *t;
210  vxlan_main_t *vxm = &vxlan_main;
211 
212  t = pool_elt_at_index (vxm->tunnels, index);
213 
214  return (&t->node);
215 }
216 
217 /**
218  * Function definition to inform the FIB node that its last lock has gone.
219  */
220 static void
222 {
223  /*
224  * The VXLAN tunnel is a root of the graph. As such
225  * it never has children and thus is never locked.
226  */
227  ASSERT (0);
228 }
229 
230 /*
231  * Virtual function table registered by VXLAN tunnels
232  * for participation in the FIB object graph.
233  */
234 const static fib_node_vft_t vxlan_vft = {
236  .fnv_last_lock = vxlan_tunnel_last_lock_gone,
237  .fnv_back_walk = vxlan_tunnel_back_walk,
238 };
239 
240 #define foreach_copy_field \
241  _ (vni) \
242  _ (mcast_sw_if_index) \
243  _ (encap_fib_index) \
244  _ (decap_next_index) \
245  _ (src) \
246  _ (dst) \
247  _ (src_port) \
248  _ (dst_port)
249 
250 static void
252 {
253  union
254  {
255  ip4_vxlan_header_t h4;
256  ip6_vxlan_header_t h6;
257  } h;
258  int len = is_ip6 ? sizeof h.h6 : sizeof h.h4;
259 
260  udp_header_t *udp;
261  vxlan_header_t *vxlan;
262  /* Fixed portion of the (outer) ip header */
263 
264  clib_memset (&h, 0, sizeof (h));
265  if (!is_ip6)
266  {
267  ip4_header_t *ip = &h.h4.ip4;
268  udp = &h.h4.udp, vxlan = &h.h4.vxlan;
269  ip->ip_version_and_header_length = 0x45;
270  ip->ttl = 254;
271  ip->protocol = IP_PROTOCOL_UDP;
272 
273  ip->src_address = t->src.ip4;
274  ip->dst_address = t->dst.ip4;
275 
276  /* we fix up the ip4 header length and checksum after-the-fact */
277  ip->checksum = ip4_header_checksum (ip);
278  }
279  else
280  {
281  ip6_header_t *ip = &h.h6.ip6;
282  udp = &h.h6.udp, vxlan = &h.h6.vxlan;
283  ip->ip_version_traffic_class_and_flow_label =
284  clib_host_to_net_u32 (6 << 28);
285  ip->hop_limit = 255;
286  ip->protocol = IP_PROTOCOL_UDP;
287 
288  ip->src_address = t->src.ip6;
289  ip->dst_address = t->dst.ip6;
290  }
291 
292  /* UDP header, randomize src port on something, maybe? */
293  udp->src_port = clib_host_to_net_u16 (t->src_port);
294  udp->dst_port = clib_host_to_net_u16 (t->dst_port);
295 
296  /* VXLAN header */
297  vnet_set_vni_and_flags (vxlan, t->vni);
298  vnet_rewrite_set_data (*t, &h, len);
299 }
300 
301 static bool
303  u32 decap_next_index)
304 {
305  vlib_main_t *vm = vxm->vlib_main;
306  u32 input_idx = (!is_ip6) ?
307  vxlan4_input_node.index : vxlan6_input_node.index;
309 
310  return decap_next_index < r->n_next_nodes;
311 }
312 
313 /* *INDENT-OFF* */
314 typedef CLIB_PACKED(union
315 {
316  struct
317  {
318  fib_node_index_t mfib_entry_index;
319  adj_index_t mcast_adj_index;
320  };
321  u64 as_u64;
322 }) mcast_shared_t;
323 /* *INDENT-ON* */
324 
325 static inline mcast_shared_t
326 mcast_shared_get (ip46_address_t * ip)
327 {
330  ALWAYS_ASSERT (p);
331  mcast_shared_t ret = {.as_u64 = *p };
332  return ret;
333 }
334 
335 static inline void
336 mcast_shared_add (ip46_address_t * dst, fib_node_index_t mfei, adj_index_t ai)
337 {
338  mcast_shared_t new_ep = {
339  .mcast_adj_index = ai,
340  .mfib_entry_index = mfei,
341  };
342 
343  hash_set_mem_alloc (&vxlan_main.mcast_shared, dst, new_ep.as_u64);
344 }
345 
346 static inline void
347 mcast_shared_remove (ip46_address_t * dst)
348 {
349  mcast_shared_t ep = mcast_shared_get (dst);
350 
351  adj_unlock (ep.mcast_adj_index);
352  mfib_table_entry_delete_index (ep.mfib_entry_index, MFIB_SOURCE_VXLAN);
353 
355 }
356 
359 {
360  vxlan_main_t *vxm = &vxlan_main;
361  vnet_main_t *vnm = vxm->vnet_main;
363  u32 sw_if_index = ~0;
364  vxlan4_tunnel_key_t key4;
365  vxlan6_tunnel_key_t key6;
366  u32 is_ip6 = a->is_ip6;
368  u8 hw_addr[6];
369 
370  /* Set udp-ports */
371  if (a->src_port == 0)
372  a->src_port = is_ip6 ? UDP_DST_PORT_vxlan6 : UDP_DST_PORT_vxlan;
373 
374  if (a->dst_port == 0)
375  a->dst_port = is_ip6 ? UDP_DST_PORT_vxlan6 : UDP_DST_PORT_vxlan;
376 
377  int not_found;
378  if (!is_ip6)
379  {
380  /* ip4 mcast is indexed by mcast addr only */
381  key4.key[0] = ip46_address_is_multicast (&a->dst) ?
382  a->dst.ip4.as_u32 :
383  a->dst.ip4.as_u32 | (((u64) a->src.ip4.as_u32) << 32);
384  key4.key[1] = ((u64) clib_host_to_net_u16 (a->src_port) << 48) |
385  (((u64) a->encap_fib_index) << 32) |
386  clib_host_to_net_u32 (a->vni << 8);
387  not_found =
388  clib_bihash_search_inline_16_8 (&vxm->vxlan4_tunnel_by_key, &key4);
389  p = (void *) &key4.value;
390  }
391  else
392  {
393  key6.key[0] = a->dst.ip6.as_u64[0];
394  key6.key[1] = a->dst.ip6.as_u64[1];
395  key6.key[2] = (((u64) clib_host_to_net_u16 (a->src_port) << 48) |
396  ((u64) a->encap_fib_index) << 32) |
397  clib_host_to_net_u32 (a->vni << 8);
398  not_found =
399  clib_bihash_search_inline_24_8 (&vxm->vxlan6_tunnel_by_key, &key6);
400  p = (void *) &key6.value;
401  }
402 
403  if (not_found)
404  p = 0;
405 
406  if (a->is_add)
407  {
408  l2input_main_t *l2im = &l2input_main;
409  u32 dev_instance; /* real dev instance tunnel index */
410  u32 user_instance; /* request and actual instance number */
411 
412  /* adding a tunnel: tunnel must not already exist */
413  if (p)
414  return VNET_API_ERROR_TUNNEL_EXIST;
415 
416  /*if not set explicitly, default to l2 */
417  if (a->decap_next_index == ~0)
418  a->decap_next_index = VXLAN_INPUT_NEXT_L2_INPUT;
419  if (!vxlan_decap_next_is_valid (vxm, is_ip6, a->decap_next_index))
420  return VNET_API_ERROR_INVALID_DECAP_NEXT;
421 
422  vxlan_tunnel_t *t;
424  clib_memset (t, 0, sizeof (*t));
425  dev_instance = t - vxm->tunnels;
426 
427  /* copy from arg structure */
428 #define _(x) t->x = a->x;
430 #undef _
431 
432  vxlan_rewrite (t, is_ip6);
433  /*
434  * Reconcile the real dev_instance and a possible requested instance.
435  */
436  user_instance = a->instance;
437  if (user_instance == ~0)
438  user_instance = dev_instance;
439  if (hash_get (vxm->instance_used, user_instance))
440  {
441  pool_put (vxm->tunnels, t);
442  return VNET_API_ERROR_INSTANCE_IN_USE;
443  }
444 
445  hash_set (vxm->instance_used, user_instance, 1);
446 
447  t->dev_instance = dev_instance; /* actual */
448  t->user_instance = user_instance; /* name */
449  t->flow_index = ~0;
450 
451  if (a->is_l3)
452  t->hw_if_index =
453  vnet_register_interface (vnm, vxlan_device_class.index, dev_instance,
454  vxlan_hw_class.index, dev_instance);
455  else
456  {
457  f64 now = vlib_time_now (vm);
458  u32 rnd;
459  rnd = (u32) (now * 1e6);
460  rnd = random_u32 (&rnd);
461  memcpy (hw_addr + 2, &rnd, sizeof (rnd));
462  hw_addr[0] = 2;
463  hw_addr[1] = 0xfe;
465  vnm, vxlan_device_class.index, dev_instance, hw_addr,
467  {
469 
470  pool_put (vxm->tunnels, t);
471  return VNET_API_ERROR_SYSCALL_ERROR_2;
472  }
473  }
474 
476 
477  /* Set vxlan tunnel output node */
478  u32 encap_index = !is_ip6 ?
479  vxlan4_encap_node.index : vxlan6_encap_node.index;
480  vnet_set_interface_output_node (vnm, t->hw_if_index, encap_index);
481 
482  t->sw_if_index = sw_if_index = hi->sw_if_index;
483 
484  /* copy the key */
485  int add_failed;
486  if (is_ip6)
487  {
488  key6.value = (u64) dev_instance;
489  add_failed = clib_bihash_add_del_24_8 (&vxm->vxlan6_tunnel_by_key,
490  &key6, 1 /*add */ );
491  }
492  else
493  {
494  vxlan_decap_info_t di = {.sw_if_index = t->sw_if_index, };
495  if (ip46_address_is_multicast (&t->dst))
496  di.local_ip = t->src.ip4;
497  else
498  di.next_index = t->decap_next_index;
499  key4.value = di.as_u64;
500  add_failed = clib_bihash_add_del_16_8 (&vxm->vxlan4_tunnel_by_key,
501  &key4, 1 /*add */ );
502  }
503 
504  if (add_failed)
505  {
506  if (a->is_l3)
508  else
511  pool_put (vxm->tunnels, t);
512  return VNET_API_ERROR_INVALID_REGISTRATION;
513  }
514 
516  ~0);
517  vxm->tunnel_index_by_sw_if_index[sw_if_index] = dev_instance;
518 
519  /* setup l2 input config with l2 feature and bd 0 to drop packet */
521  l2im->configs[sw_if_index].feature_bitmap = L2INPUT_FEAT_DROP;
522  l2im->configs[sw_if_index].bd_index = 0;
523 
528 
530  fib_prefix_t tun_dst_pfx;
532 
533  fib_prefix_from_ip46_addr (&t->dst, &tun_dst_pfx);
534  if (!ip46_address_is_multicast (&t->dst))
535  {
536  /* Unicast tunnel -
537  * source the FIB entry for the tunnel's destination
538  * and become a child thereof. The tunnel will then get poked
539  * when the forwarding for the entry updates, and the tunnel can
540  * re-stack accordingly
541  */
542  vtep_addr_ref (&vxm->vtep_table, t->encap_fib_index, &t->src);
544  &tun_dst_pfx,
546  dev_instance,
547  &t->sibling_index);
549  }
550  else
551  {
552  /* Multicast tunnel -
553  * as the same mcast group can be used for multiple mcast tunnels
554  * with different VNIs, create the output fib adjacency only if
555  * it does not already exist
556  */
558 
559  if (vtep_addr_ref (&vxm->vtep_table,
560  t->encap_fib_index, &t->dst) == 1)
561  {
562  fib_node_index_t mfei;
563  adj_index_t ai;
565  .frp_proto = fib_proto_to_dpo (fp),
566  .frp_addr = zero_addr,
567  .frp_sw_if_index = 0xffffffff,
568  .frp_fib_index = ~0,
569  .frp_weight = 1,
570  .frp_flags = FIB_ROUTE_PATH_LOCAL,
571  .frp_mitf_flags = MFIB_ITF_FLAG_FORWARD,
572  };
573  const mfib_prefix_t mpfx = {
574  .fp_proto = fp,
575  .fp_len = (is_ip6 ? 128 : 32),
576  .fp_grp_addr = tun_dst_pfx.fp_addr,
577  };
578 
579  /*
580  * Setup the (*,G) to receive traffic on the mcast group
581  * - the forwarding interface is for-us
582  * - the accepting interface is that from the API
583  */
585  &mpfx, MFIB_SOURCE_VXLAN, &path);
586 
587  path.frp_sw_if_index = a->mcast_sw_if_index;
588  path.frp_flags = FIB_ROUTE_PATH_FLAG_NONE;
589  path.frp_mitf_flags = MFIB_ITF_FLAG_ACCEPT;
591  &mpfx,
593 
594  /*
595  * Create the mcast adjacency to send traffic to the group
596  */
597  ai = adj_mcast_add_or_lock (fp,
598  fib_proto_to_link (fp),
599  a->mcast_sw_if_index);
600 
601  /*
602  * create a new end-point
603  */
604  mcast_shared_add (&t->dst, mfei, ai);
605  }
606 
607  dpo_id_t dpo = DPO_INVALID;
608  mcast_shared_t ep = mcast_shared_get (&t->dst);
609 
610  /* Stack shared mcast dst mac addr rewrite on encap */
612  fib_proto_to_dpo (fp), ep.mcast_adj_index);
613 
614  dpo_stack_from_node (encap_index, &t->next_dpo, &dpo);
615  dpo_reset (&dpo);
616  flood_class = VNET_FLOOD_CLASS_TUNNEL_MASTER;
617  }
618 
620  flood_class;
621  }
622  else
623  {
624  /* deleting a tunnel: tunnel must exist */
625  if (!p)
626  return VNET_API_ERROR_NO_SUCH_ENTRY;
627 
628  u32 instance = is_ip6 ? key6.value :
631 
633  vnet_sw_interface_set_flags (vnm, sw_if_index, 0 /* down */ );
634 
636 
637  if (!is_ip6)
638  clib_bihash_add_del_16_8 (&vxm->vxlan4_tunnel_by_key, &key4,
639  0 /*del */ );
640  else
641  clib_bihash_add_del_24_8 (&vxm->vxlan6_tunnel_by_key, &key6,
642  0 /*del */ );
643 
644  if (!ip46_address_is_multicast (&t->dst))
645  {
646  if (t->flow_index != ~0)
647  vnet_flow_del (vnm, t->flow_index);
648 
651  }
652  else if (vtep_addr_unref (&vxm->vtep_table,
653  t->encap_fib_index, &t->dst) == 0)
654  {
655  mcast_shared_remove (&t->dst);
656  }
657 
659  if (hw->dev_class_index == vxlan_device_class.index)
661  else
664 
665  fib_node_deinit (&t->node);
666  pool_put (vxm->tunnels, t);
667  }
668 
669  if (sw_if_indexp)
670  *sw_if_indexp = sw_if_index;
671 
672  if (a->is_add)
673  {
674  /* register udp ports */
675  if (!is_ip6 && !udp_is_valid_dst_port (a->src_port, 1))
676  udp_register_dst_port (vxm->vlib_main, a->src_port,
677  vxlan4_input_node.index, 1);
678  if (is_ip6 && !udp_is_valid_dst_port (a->src_port, 0))
679  udp_register_dst_port (vxm->vlib_main, a->src_port,
680  vxlan6_input_node.index, 0);
681  }
682 
683  return 0;
684 }
685 
686 static uword
688 {
689  vxlan_main_t *vxm = &vxlan_main;
690  vlib_main_t *vm = vxm->vlib_main;
691  uword input_node = (ipv4_set) ? vxlan4_input_node.index :
692  vxlan6_input_node.index;
693 
694  return vlib_node_add_next (vm, input_node, node_index);
695 }
696 
697 static uword
698 unformat_decap_next (unformat_input_t * input, va_list * args)
699 {
700  u32 *result = va_arg (*args, u32 *);
701  u32 ipv4_set = va_arg (*args, int);
702  vxlan_main_t *vxm = &vxlan_main;
703  vlib_main_t *vm = vxm->vlib_main;
704  u32 node_index;
705  u32 tmp;
706 
707  if (unformat (input, "l2"))
708  *result = VXLAN_INPUT_NEXT_L2_INPUT;
709  else if (unformat (input, "node %U", unformat_vlib_node, vm, &node_index))
710  *result = get_decap_next_for_node (node_index, ipv4_set);
711  else if (unformat (input, "%d", &tmp))
712  *result = tmp;
713  else
714  return 0;
715  return 1;
716 }
717 
718 static clib_error_t *
720  unformat_input_t * input,
721  vlib_cli_command_t * cmd)
722 {
723  unformat_input_t _line_input, *line_input = &_line_input;
724  ip46_address_t src = ip46_address_initializer, dst =
726  u8 is_add = 1;
727  u8 src_set = 0;
728  u8 dst_set = 0;
729  u8 grp_set = 0;
730  u8 ipv4_set = 0;
731  u8 ipv6_set = 0;
732  u8 is_l3 = 0;
733  u32 instance = ~0;
734  u32 encap_fib_index = 0;
735  u32 mcast_sw_if_index = ~0;
736  u32 decap_next_index = VXLAN_INPUT_NEXT_L2_INPUT;
737  u32 vni = 0;
738  u32 src_port = 0;
739  u32 dst_port = 0;
740  u32 table_id;
741  clib_error_t *parse_error = NULL;
742 
743  /* Get a line of input. */
744  if (!unformat_user (input, unformat_line_input, line_input))
745  return 0;
746 
747  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
748  {
749  if (unformat (line_input, "del"))
750  {
751  is_add = 0;
752  }
753  else if (unformat (line_input, "instance %d", &instance))
754  ;
755  else if (unformat (line_input, "src %U",
757  {
758  src_set = 1;
759  ip46_address_is_ip4 (&src) ? (ipv4_set = 1) : (ipv6_set = 1);
760  }
761  else if (unformat (line_input, "dst %U",
763  {
764  dst_set = 1;
765  ip46_address_is_ip4 (&dst) ? (ipv4_set = 1) : (ipv6_set = 1);
766  }
767  else if (unformat (line_input, "group %U %U",
771  {
772  grp_set = dst_set = 1;
773  ip46_address_is_ip4 (&dst) ? (ipv4_set = 1) : (ipv6_set = 1);
774  }
775  else if (unformat (line_input, "encap-vrf-id %d", &table_id))
776  {
777  encap_fib_index =
778  fib_table_find (fib_ip_proto (ipv6_set), table_id);
779  }
780  else if (unformat (line_input, "l3"))
781  is_l3 = 1;
782  else if (unformat (line_input, "decap-next %U", unformat_decap_next,
783  &decap_next_index, ipv4_set))
784  ;
785  else if (unformat (line_input, "vni %d", &vni))
786  ;
787  else if (unformat (line_input, "src_port %d", &src_port))
788  ;
789  else if (unformat (line_input, "dst_port %d", &dst_port))
790  ;
791  else
792  {
793  parse_error = clib_error_return (0, "parse error: '%U'",
794  format_unformat_error, line_input);
795  break;
796  }
797  }
798 
799  unformat_free (line_input);
800 
801  if (parse_error)
802  return parse_error;
803 
804  if (is_l3 && decap_next_index == VXLAN_INPUT_NEXT_L2_INPUT)
805  {
807  vm, (u8 *) (ipv4_set ? "ip4-input" : "ip6-input"));
808  decap_next_index = get_decap_next_for_node (node->index, ipv4_set);
809  }
810 
811  if (encap_fib_index == ~0)
812  return clib_error_return (0, "nonexistent encap-vrf-id %d", table_id);
813 
814  if (src_set == 0)
815  return clib_error_return (0, "tunnel src address not specified");
816 
817  if (dst_set == 0)
818  return clib_error_return (0, "tunnel dst address not specified");
819 
820  if (grp_set && !ip46_address_is_multicast (&dst))
821  return clib_error_return (0, "tunnel group address not multicast");
822 
823  if (grp_set == 0 && ip46_address_is_multicast (&dst))
824  return clib_error_return (0, "dst address must be unicast");
825 
826  if (grp_set && mcast_sw_if_index == ~0)
827  return clib_error_return (0, "tunnel nonexistent multicast device");
828 
829  if (ipv4_set && ipv6_set)
830  return clib_error_return (0, "both IPv4 and IPv6 addresses specified");
831 
832  if (ip46_address_cmp (&src, &dst) == 0)
833  return clib_error_return (0, "src and dst addresses are identical");
834 
835  if (decap_next_index == ~0)
836  return clib_error_return (0, "next node not found");
837 
838  if (vni == 0)
839  return clib_error_return (0, "vni not specified");
840 
841  if (vni >> 24)
842  return clib_error_return (0, "vni %d out of range", vni);
843 
844  vnet_vxlan_add_del_tunnel_args_t a = { .is_add = is_add,
845  .is_ip6 = ipv6_set,
846  .is_l3 = is_l3,
847  .instance = instance,
848 #define _(x) .x = x,
850 #undef _
851  };
852 
853  u32 tunnel_sw_if_index;
854  int rv = vnet_vxlan_add_del_tunnel (&a, &tunnel_sw_if_index);
855 
856  switch (rv)
857  {
858  case 0:
859  if (is_add)
861  vnet_get_main (), tunnel_sw_if_index);
862  break;
863 
864  case VNET_API_ERROR_TUNNEL_EXIST:
865  return clib_error_return (0, "tunnel already exists...");
866 
867  case VNET_API_ERROR_NO_SUCH_ENTRY:
868  return clib_error_return (0, "tunnel does not exist...");
869 
870  case VNET_API_ERROR_INSTANCE_IN_USE:
871  return clib_error_return (0, "Instance is in use");
872 
873  default:
874  return clib_error_return
875  (0, "vnet_vxlan_add_del_tunnel returned %d", rv);
876  }
877 
878  return 0;
879 }
880 
881 /*?
882  * Add or delete a VXLAN Tunnel.
883  *
884  * VXLAN provides the features needed to allow L2 bridge domains (BDs)
885  * to span multiple servers. This is done by building an L2 overlay on
886  * top of an L3 network underlay using VXLAN tunnels.
887  *
888  * This makes it possible for servers to be co-located in the same data
889  * center or be separated geographically as long as they are reachable
890  * through the underlay L3 network.
891  *
892  * You can refer to this kind of L2 overlay bridge domain as a VXLAN
893  * (Virtual eXtensible VLAN) segment.
894  *
895  * @cliexpar
896  * Example of how to create a VXLAN Tunnel:
897  * @cliexcmd{create vxlan tunnel src 10.0.3.1 dst 10.0.3.3 vni 13 encap-vrf-id
898  7}
899  * Example of how to create a VXLAN Tunnel with a known name, vxlan_tunnel42:
900  * @cliexcmd{create vxlan tunnel src 10.0.3.1 dst 10.0.3.3 instance 42}
901  * Example of how to create a multicast VXLAN Tunnel with a known name,
902  vxlan_tunnel23:
903  * @cliexcmd{create vxlan tunnel src 10.0.3.1 group 239.1.1.1
904  GigabitEthernet0/8/0 instance 23}
905  * Example of how to create a VXLAN Tunnel with custom udp-ports:
906  * @cliexcmd{create vxlan tunnel src 10.0.3.1 dst 10.0.3.3 vni 13 src_port
907  59000 dst_port 59001}
908  * Example of how to delete a VXLAN Tunnel:
909  * @cliexcmd{create vxlan tunnel src 10.0.3.1 dst 10.0.3.3 vni 13 del}
910  ?*/
911 /* *INDENT-OFF* */
913  .path = "create vxlan tunnel",
914  .short_help =
915  "create vxlan tunnel src <local-vtep-addr>"
916  " {dst <remote-vtep-addr>|group <mcast-vtep-addr> <intf-name>} vni <nn>"
917  " [instance <id>]"
918  " [encap-vrf-id <nn>] [decap-next [l2|node <name>]] [del] [l3]"
919  " [src_port <local-vtep-udp-port>] [dst_port <remote-vtep-udp-port>]",
921 };
922 /* *INDENT-ON* */
923 
924 static clib_error_t *
926  unformat_input_t * input,
927  vlib_cli_command_t * cmd)
928 {
929  vxlan_main_t *vxm = &vxlan_main;
930  vxlan_tunnel_t *t;
931  int raw = 0;
932 
934  {
935  if (unformat (input, "raw"))
936  raw = 1;
937  else
938  return clib_error_return (0, "parse error: '%U'",
939  format_unformat_error, input);
940  }
941 
942  if (pool_elts (vxm->tunnels) == 0)
943  vlib_cli_output (vm, "No vxlan tunnels configured...");
944 
945 /* *INDENT-OFF* */
946  pool_foreach (t, vxm->tunnels)
947  {
949  }
950 /* *INDENT-ON* */
951 
952  if (raw)
953  {
954  vlib_cli_output (vm, "Raw IPv4 Hash Table:\n%U\n",
955  format_bihash_16_8, &vxm->vxlan4_tunnel_by_key,
956  1 /* verbose */ );
957  vlib_cli_output (vm, "Raw IPv6 Hash Table:\n%U\n",
958  format_bihash_24_8, &vxm->vxlan6_tunnel_by_key,
959  1 /* verbose */ );
960  }
961 
962  return 0;
963 }
964 
965 /*?
966  * Display all the VXLAN Tunnel entries.
967  *
968  * @cliexpar
969  * Example of how to display the VXLAN Tunnel entries:
970  * @cliexstart{show vxlan tunnel}
971  * [0] src 10.0.3.1 dst 10.0.3.3 src_port 4789 dst_port 4789 vni 13
972  encap_fib_index 0 sw_if_index 5 decap_next l2
973  * @cliexend
974  ?*/
975 /* *INDENT-OFF* */
977  .path = "show vxlan tunnel",
978  .short_help = "show vxlan tunnel [raw]",
979  .function = show_vxlan_tunnel_command_fn,
980 };
981 /* *INDENT-ON* */
982 
983 
984 void
986 {
987  vxlan_main_t *vxm = &vxlan_main;
988 
990  sw_if_index))
991  return;
992 
993  is_enable = ! !is_enable;
994 
995  if (is_ip6)
996  {
998  != is_enable)
999  {
1000  vnet_feature_enable_disable ("ip6-unicast", "ip6-vxlan-bypass",
1001  sw_if_index, is_enable, 0, 0);
1004  sw_if_index, is_enable);
1005  }
1006  }
1007  else
1008  {
1010  != is_enable)
1011  {
1012  vnet_feature_enable_disable ("ip4-unicast", "ip4-vxlan-bypass",
1013  sw_if_index, is_enable, 0, 0);
1016  sw_if_index, is_enable);
1017  }
1018  }
1019 }
1020 
1021 
1022 static clib_error_t *
1024  unformat_input_t * input, vlib_cli_command_t * cmd)
1025 {
1026  unformat_input_t _line_input, *line_input = &_line_input;
1027  vnet_main_t *vnm = vnet_get_main ();
1028  clib_error_t *error = 0;
1029  u32 sw_if_index, is_enable;
1030 
1031  sw_if_index = ~0;
1032  is_enable = 1;
1033 
1034  if (!unformat_user (input, unformat_line_input, line_input))
1035  return 0;
1036 
1037  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1038  {
1039  if (unformat_user
1040  (line_input, unformat_vnet_sw_interface, vnm, &sw_if_index))
1041  ;
1042  else if (unformat (line_input, "del"))
1043  is_enable = 0;
1044  else
1045  {
1046  error = unformat_parse_error (line_input);
1047  goto done;
1048  }
1049  }
1050 
1051  if (~0 == sw_if_index)
1052  {
1053  error = clib_error_return (0, "unknown interface `%U'",
1054  format_unformat_error, line_input);
1055  goto done;
1056  }
1057 
1059 
1060 done:
1061  unformat_free (line_input);
1062 
1063  return error;
1064 }
1065 
1066 static clib_error_t *
1068  unformat_input_t * input, vlib_cli_command_t * cmd)
1069 {
1070  return set_ip_vxlan_bypass (0, input, cmd);
1071 }
1072 
1073 /*?
1074  * This command adds the 'ip4-vxlan-bypass' graph node for a given interface.
1075  * By adding the IPv4 vxlan-bypass graph node to an interface, the node checks
1076  * for and validate input vxlan packet and bypass ip4-lookup, ip4-local,
1077  * ip4-udp-lookup nodes to speedup vxlan packet forwarding. This node will
1078  * cause extra overhead to for non-vxlan packets which is kept at a minimum.
1079  *
1080  * @cliexpar
1081  * @parblock
1082  * Example of graph node before ip4-vxlan-bypass is enabled:
1083  * @cliexstart{show vlib graph ip4-vxlan-bypass}
1084  * Name Next Previous
1085  * ip4-vxlan-bypass error-drop [0]
1086  * vxlan4-input [1]
1087  * ip4-lookup [2]
1088  * @cliexend
1089  *
1090  * Example of how to enable ip4-vxlan-bypass on an interface:
1091  * @cliexcmd{set interface ip vxlan-bypass GigabitEthernet2/0/0}
1092  *
1093  * Example of graph node after ip4-vxlan-bypass is enabled:
1094  * @cliexstart{show vlib graph ip4-vxlan-bypass}
1095  * Name Next Previous
1096  * ip4-vxlan-bypass error-drop [0] ip4-input
1097  * vxlan4-input [1] ip4-input-no-checksum
1098  * ip4-lookup [2]
1099  * @cliexend
1100  *
1101  * Example of how to display the feature enabled on an interface:
1102  * @cliexstart{show ip interface features GigabitEthernet2/0/0}
1103  * IP feature paths configured on GigabitEthernet2/0/0...
1104  * ...
1105  * ipv4 unicast:
1106  * ip4-vxlan-bypass
1107  * ip4-lookup
1108  * ...
1109  * @cliexend
1110  *
1111  * Example of how to disable ip4-vxlan-bypass on an interface:
1112  * @cliexcmd{set interface ip vxlan-bypass GigabitEthernet2/0/0 del}
1113  * @endparblock
1114 ?*/
1115 /* *INDENT-OFF* */
1117  .path = "set interface ip vxlan-bypass",
1118  .function = set_ip4_vxlan_bypass,
1119  .short_help = "set interface ip vxlan-bypass <interface> [del]",
1120 };
1121 /* *INDENT-ON* */
1122 
1123 static clib_error_t *
1125  unformat_input_t * input, vlib_cli_command_t * cmd)
1126 {
1127  return set_ip_vxlan_bypass (1, input, cmd);
1128 }
1129 
1130 /*?
1131  * This command adds the 'ip6-vxlan-bypass' graph node for a given interface.
1132  * By adding the IPv6 vxlan-bypass graph node to an interface, the node checks
1133  * for and validate input vxlan packet and bypass ip6-lookup, ip6-local,
1134  * ip6-udp-lookup nodes to speedup vxlan packet forwarding. This node will
1135  * cause extra overhead to for non-vxlan packets which is kept at a minimum.
1136  *
1137  * @cliexpar
1138  * @parblock
1139  * Example of graph node before ip6-vxlan-bypass is enabled:
1140  * @cliexstart{show vlib graph ip6-vxlan-bypass}
1141  * Name Next Previous
1142  * ip6-vxlan-bypass error-drop [0]
1143  * vxlan6-input [1]
1144  * ip6-lookup [2]
1145  * @cliexend
1146  *
1147  * Example of how to enable ip6-vxlan-bypass on an interface:
1148  * @cliexcmd{set interface ip6 vxlan-bypass GigabitEthernet2/0/0}
1149  *
1150  * Example of graph node after ip6-vxlan-bypass is enabled:
1151  * @cliexstart{show vlib graph ip6-vxlan-bypass}
1152  * Name Next Previous
1153  * ip6-vxlan-bypass error-drop [0] ip6-input
1154  * vxlan6-input [1] ip4-input-no-checksum
1155  * ip6-lookup [2]
1156  * @cliexend
1157  *
1158  * Example of how to display the feature enabled on an interface:
1159  * @cliexstart{show ip interface features GigabitEthernet2/0/0}
1160  * IP feature paths configured on GigabitEthernet2/0/0...
1161  * ...
1162  * ipv6 unicast:
1163  * ip6-vxlan-bypass
1164  * ip6-lookup
1165  * ...
1166  * @cliexend
1167  *
1168  * Example of how to disable ip6-vxlan-bypass on an interface:
1169  * @cliexcmd{set interface ip6 vxlan-bypass GigabitEthernet2/0/0 del}
1170  * @endparblock
1171 ?*/
1172 /* *INDENT-OFF* */
1174  .path = "set interface ip6 vxlan-bypass",
1175  .function = set_ip6_vxlan_bypass,
1176  .short_help = "set interface ip6 vxlan-bypass <interface> [del]",
1177 };
1178 /* *INDENT-ON* */
1179 
1180 int
1181 vnet_vxlan_add_del_rx_flow (u32 hw_if_index, u32 t_index, int is_add)
1182 {
1183  vxlan_main_t *vxm = &vxlan_main;
1184  vxlan_tunnel_t *t = pool_elt_at_index (vxm->tunnels, t_index);
1185  vnet_main_t *vnm = vnet_get_main ();
1186  if (is_add)
1187  {
1188  if (t->flow_index == ~0)
1189  {
1190  vxlan_main_t *vxm = &vxlan_main;
1191  vnet_flow_t flow = {
1192  .actions =
1193  VNET_FLOW_ACTION_REDIRECT_TO_NODE | VNET_FLOW_ACTION_MARK |
1194  VNET_FLOW_ACTION_BUFFER_ADVANCE,
1195  .mark_flow_id = t->dev_instance + vxm->flow_id_start,
1196  .redirect_node_index = vxlan4_flow_input_node.index,
1197  .buffer_advance = sizeof (ethernet_header_t),
1198  .type = VNET_FLOW_TYPE_IP4_VXLAN,
1199  .ip4_vxlan = {
1200  .protocol.prot = IP_PROTOCOL_UDP,
1201  .src_addr.addr = t->dst.ip4,
1202  .dst_addr.addr = t->src.ip4,
1203  .src_addr.mask.as_u32 = ~0,
1204  .dst_addr.mask.as_u32 = ~0,
1205  .dst_port.port = t->src_port,
1206  .dst_port.mask = 0xFF,
1207  .vni = t->vni,
1208  }
1209  ,
1210  };
1211  vnet_flow_add (vnm, &flow, &t->flow_index);
1212  }
1213  return vnet_flow_enable (vnm, t->flow_index, hw_if_index);
1214  }
1215  /* flow index is removed when the tunnel is deleted */
1216  return vnet_flow_disable (vnm, t->flow_index, hw_if_index);
1217 }
1218 
1219 u32
1221 {
1222  vxlan_main_t *vxm = &vxlan_main;
1223 
1225  return ~0;
1227 }
1228 
1229 static clib_error_t *
1231  unformat_input_t * input, vlib_cli_command_t * cmd)
1232 {
1233  unformat_input_t _line_input, *line_input = &_line_input;
1234 
1235  /* Get a line of input. */
1236  if (!unformat_user (input, unformat_line_input, line_input))
1237  return 0;
1238 
1239  vnet_main_t *vnm = vnet_get_main ();
1240  u32 rx_sw_if_index = ~0;
1241  u32 hw_if_index = ~0;
1242  int is_add = 1;
1243 
1244  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1245  {
1246  if (unformat (line_input, "hw %U", unformat_vnet_hw_interface, vnm,
1247  &hw_if_index))
1248  continue;
1249  if (unformat (line_input, "rx %U", unformat_vnet_sw_interface, vnm,
1250  &rx_sw_if_index))
1251  continue;
1252  if (unformat (line_input, "del"))
1253  {
1254  is_add = 0;
1255  continue;
1256  }
1257  return clib_error_return (0, "unknown input `%U'",
1258  format_unformat_error, line_input);
1259  }
1260 
1261  if (rx_sw_if_index == ~0)
1262  return clib_error_return (0, "missing rx interface");
1263  if (hw_if_index == ~0)
1264  return clib_error_return (0, "missing hw interface");
1265 
1266  u32 t_index = vnet_vxlan_get_tunnel_index (rx_sw_if_index);;
1267  if (t_index == ~0)
1268  return clib_error_return (0, "%U is not a vxlan tunnel",
1270  rx_sw_if_index);
1271 
1272  vxlan_main_t *vxm = &vxlan_main;
1273  vxlan_tunnel_t *t = pool_elt_at_index (vxm->tunnels, t_index);
1274 
1275  if (!ip46_address_is_ip4 (&t->dst))
1276  return clib_error_return (0, "currently only IPV4 tunnels are supported");
1277 
1278  vnet_hw_interface_t *hw_if = vnet_get_hw_interface (vnm, hw_if_index);
1279  ip4_main_t *im = &ip4_main;
1280  u32 rx_fib_index =
1281  vec_elt (im->fib_index_by_sw_if_index, hw_if->sw_if_index);
1282 
1283  if (t->encap_fib_index != rx_fib_index)
1284  return clib_error_return (0, "interface/tunnel fib mismatch");
1285 
1286  if (vnet_vxlan_add_del_rx_flow (hw_if_index, t_index, is_add))
1287  return clib_error_return (0, "error %s flow",
1288  is_add ? "enabling" : "disabling");
1289 
1290  return 0;
1291 }
1292 
1293 /* *INDENT-OFF* */
1295  .path = "set flow-offload vxlan",
1296  .short_help =
1297  "set flow-offload vxlan hw <interface-name> rx <tunnel-name> [del]",
1298  .function = vxlan_offload_command_fn,
1299 };
1300 /* *INDENT-ON* */
1301 
1302 #define VXLAN_HASH_NUM_BUCKETS (2 * 1024)
1303 #define VXLAN_HASH_MEMORY_SIZE (1 << 20)
1304 
1305 clib_error_t *
1307 {
1308  vxlan_main_t *vxm = &vxlan_main;
1309 
1310  vxm->vnet_main = vnet_get_main ();
1311  vxm->vlib_main = vm;
1312 
1313  vnet_flow_get_range (vxm->vnet_main, "vxlan", 1024 * 1024,
1314  &vxm->flow_id_start);
1315 
1318 
1319  /* initialize the ip6 hash */
1320  clib_bihash_init_16_8 (&vxm->vxlan4_tunnel_by_key, "vxlan4",
1322  clib_bihash_init_24_8 (&vxm->vxlan6_tunnel_by_key, "vxlan6",
1324  vxm->vtep_table = vtep_table_create ();
1325  vxm->mcast_shared = hash_create_mem (0,
1326  sizeof (ip46_address_t),
1327  sizeof (mcast_shared_t));
1328 
1330 
1331  return 0;
1332 }
1333 
1335 
1336 /*
1337  * fd.io coding-style-patch-verification: ON
1338  *
1339  * Local Variables:
1340  * eval: (c-set-style "gnu")
1341  * End:
1342  */
vlib.h
vnet_flow_enable
int vnet_flow_enable(vnet_main_t *vnm, u32 flow_index, u32 hw_if_index)
Definition: flow.c:91
vnet_flow_del
int vnet_flow_del(vnet_main_t *vnm, u32 flow_index)
Definition: flow.c:67
tmp
u32 * tmp
Definition: interface_output.c:1078
vnet_rewrite_set_data
#define vnet_rewrite_set_data(rw, data, data_bytes)
Definition: rewrite.h:158
im
vnet_interface_main_t * im
Definition: interface_output.c:395
fib_entry.h
set_interface_ip6_vxlan_bypass_command
static vlib_cli_command_t set_interface_ip6_vxlan_bypass_command
(constructor) VLIB_CLI_COMMAND (set_interface_ip6_vxlan_bypass_command)
Definition: vxlan.c:1173
udp_header_t::src_port
u16 src_port
Definition: udp_packet.h:48
load_balance_t_::lb_n_buckets
u16 lb_n_buckets
number of buckets in the load-balance.
Definition: load_balance.h:116
vnet_sw_interface_set_flags
clib_error_t * vnet_sw_interface_set_flags(vnet_main_t *vnm, u32 sw_if_index, vnet_sw_interface_flags_t flags)
Definition: interface.c:523
CLIB_PACKED
typedef CLIB_PACKED(union { struct { fib_node_index_t mfib_entry_index;adj_index_t mcast_adj_index;};u64 as_u64;})
Definition: vxlan.c:314
dpo_id_t_::dpoi_index
index_t dpoi_index
the index of objects of that type
Definition: dpo.h:190
DPO_INVALID
#define DPO_INVALID
An initialiser for DPOs declared on the stack.
Definition: dpo.h:204
clib_bihash_kv_16_8_t::value
u64 value
Definition: bihash_16_8.h:43
unformat_user
uword unformat_user(unformat_input_t *input, unformat_function_t *func,...)
Definition: unformat.c:989
vtep_table_create
static vtep_table_t vtep_table_create()
Definition: vtep.h:69
vxlan.h
raw
const char *const const char *const raw
Definition: cJSON.h:270
vnet_sw_interface_t
Definition: interface.h:868
dst_port
vl_api_ip_port_and_mask_t dst_port
Definition: flow_types.api:92
fib_ip_proto
static fib_protocol_t fib_ip_proto(bool is_ip6)
Convert from boolean is_ip6 to FIB protocol.
Definition: fib_types.h:79
vnet_flood_class_t
vnet_flood_class_t
Definition: interface.h:813
vnet_vxlan_add_del_tunnel_args_t
Definition: vxlan.h:210
fib_node_back_walk_rc_t
enum fib_node_back_walk_rc_t_ fib_node_back_walk_rc_t
Return code from a back walk function.
vlib_node_add_next
static uword vlib_node_add_next(vlib_main_t *vm, uword node, uword next_node)
Definition: node_funcs.h:1177
vnet_int_vxlan_bypass_mode
void vnet_int_vxlan_bypass_mode(u32 sw_if_index, u8 is_ip6, u8 is_enable)
Definition: vxlan.c:985
l2input_main
l2input_main_t l2input_main
Definition: l2_input_node.c:78
zero_addr
const ip46_address_t zero_addr
#include <vnet/feature/feature.h>
Definition: lookup.c:182
set_ip_vxlan_bypass
static clib_error_t * set_ip_vxlan_bypass(u32 is_ip6, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: vxlan.c:1023
next_index
nat44_ei_hairpin_src_next_t next_index
Definition: nat44_ei_hairpinning.c:412
l2input_main_t
Definition: l2_input.h:83
l2_input_config_t::bd_index
u16 bd_index
Definition: l2_input.h:51
vxlan_tunnel_t::mcast_sw_if_index
u32 mcast_sw_if_index
Definition: vxlan.h:101
ip4_main
ip4_main_t ip4_main
Global ip4 main structure.
Definition: ip4_forward.c:1105
vxlan_offload_command
static vlib_cli_command_t vxlan_offload_command
(constructor) VLIB_CLI_COMMAND (vxlan_offload_command)
Definition: vxlan.c:1294
vxlan_tunnel_t::fib_entry_index
fib_node_index_t fib_entry_index
Definition: vxlan.h:122
ip46_address_is_multicast
static uword ip46_address_is_multicast(const ip46_address_t *a)
Definition: ip46_address.h:154
dpo_id_t_::dpoi_type
dpo_type_t dpoi_type
the type
Definition: dpo.h:178
ip46_address_initializer
#define ip46_address_initializer
Definition: ip46_address.h:52
unformat_line_input
unformat_function_t unformat_line_input
Definition: format.h:275
pool_elt_at_index
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:553
MFIB_ITF_FLAG_ACCEPT
@ MFIB_ITF_FLAG_ACCEPT
Definition: mfib_types.h:152
fib_entry_untrack
void fib_entry_untrack(fib_node_index_t fei, u32 sibling)
Stop tracking a FIB entry.
Definition: fib_entry_track.c:79
vxlan6_input_node
vlib_node_registration_t vxlan6_input_node
(constructor) VLIB_REGISTER_NODE (vxlan6_input_node)
Definition: decap.c:24
show_vxlan_tunnel_command_fn
static clib_error_t * show_vxlan_tunnel_command_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: vxlan.c:925
vnet_hw_interface_t::sw_if_index
u32 sw_if_index
Definition: interface.h:670
pool_get_aligned
#define pool_get_aligned(P, E, A)
Allocate an object E from a pool P with alignment A.
Definition: pool.h:249
mfib_prefix_t_
Aggregate type for a prefix.
Definition: mfib_types.h:24
vxlan_tunnel_t::src_port
u16 src_port
Definition: vxlan.h:97
vxlan_main_t::tunnel_index_by_sw_if_index
u32 * tunnel_index_by_sw_if_index
Definition: vxlan.h:179
adj_mcast_add_or_lock
adj_index_t adj_mcast_add_or_lock(fib_protocol_t proto, vnet_link_t link_type, u32 sw_if_index)
Mcast Adjacency.
Definition: adj_mcast.c:51
node
vlib_main_t vlib_node_runtime_t * node
Definition: nat44_ei.c:3047
path
vl_api_fib_path_t path
Definition: mfib_types.api:44
ip46_address_cmp
static int ip46_address_cmp(const ip46_address_t *ip46_1, const ip46_address_t *ip46_2)
Definition: ip46_address.h:80
vxlan_header_t
Definition: vxlan_packet.h:44
fib_node_vft_t_
A FIB graph nodes virtual function table.
Definition: fib_node.h:288
rewrite.h
vxlan_tunnel_t::dst
ip46_address_t dst
Definition: vxlan.h:94
vni
u32 vni
Definition: flow_types.api:160
mfib_table_entry_delete_index
void mfib_table_entry_delete_index(fib_node_index_t mfib_entry_index, mfib_source_t source)
Delete a FIB entry.
Definition: mfib_table.c:517
adj_mcast.h
ip46_address_is_ip4
static u8 ip46_address_is_ip4(const ip46_address_t *ip46)
Definition: ip46_address.h:55
clib_error_return
#define clib_error_return(e, args...)
Definition: error.h:99
vlib_cli_command_t::path
char * path
Definition: cli.h:96
vxlan_main_t::vxlan4_tunnel_by_key
clib_bihash_16_8_t vxlan4_tunnel_by_key
Definition: vxlan.h:167
clib_bihash_kv_24_8_t
Definition: bihash_24_8.h:40
adj_unlock
void adj_unlock(adj_index_t adj_index)
Release a reference counting lock on the adjacency.
Definition: adj.c:358
fib_table.h
format_vxlan_encap_trace
u8 * format_vxlan_encap_trace(u8 *s, va_list *args)
Definition: encap.c:58
VNET_SW_INTERFACE_FLAG_ADMIN_UP
@ VNET_SW_INTERFACE_FLAG_ADMIN_UP
Definition: interface.h:843
pool_put
#define pool_put(P, E)
Free an object E in pool P.
Definition: pool.h:305
vxlan_main_t::mcast_shared
uword * mcast_shared
Definition: vxlan.h:176
unformat_parse_error
#define unformat_parse_error(input)
Definition: format.h:261
vm
vlib_main_t * vm
X-connect all packets from the HOST to the PHY.
Definition: nat44_ei.c:3047
vxlan_decap_next_is_valid
static bool vxlan_decap_next_is_valid(vxlan_main_t *vxm, u32 is_ip6, u32 decap_next_index)
Definition: vxlan.c:302
vxlan_tunnel_t::dev_instance
u32 dev_instance
Definition: vxlan.h:134
node_index
node node_index
Definition: interface_output.c:420
vnet_get_sw_interface
static vnet_sw_interface_t * vnet_get_sw_interface(vnet_main_t *vnm, u32 sw_if_index)
Definition: interface_funcs.h:58
VNET_HW_INTERFACE_FLAG_LINK_UP
@ VNET_HW_INTERFACE_FLAG_LINK_UP
Definition: interface.h:509
flow
Definition: flow_types.api:196
mcast_shared_add
static void mcast_shared_add(ip46_address_t *dst, fib_node_index_t mfei, adj_index_t ai)
Definition: vxlan.c:336
vxlan_main_t::flow_id_start
u32 flow_id_start
Definition: vxlan.h:191
fib_prefix_from_ip46_addr
void fib_prefix_from_ip46_addr(const ip46_address_t *addr, fib_prefix_t *pfx)
Host prefix from ip.
Definition: fib_types.c:81
hi
vl_api_ip4_address_t hi
Definition: arp.api:37
format_vxlan_name
static u8 * format_vxlan_name(u8 *s, va_list *args)
Definition: vxlan.c:96
unformat_input_t
struct _unformat_input_t unformat_input_t
r
vnet_hw_if_output_node_runtime_t * r
Definition: interface_output.c:1071
drop_dpo.h
vxlan_eth_flag_change
static u32 vxlan_eth_flag_change(vnet_main_t *vnm, vnet_hw_interface_t *hi, u32 flags)
Definition: vxlan.c:49
udp_header_t
Definition: udp_packet.h:45
ip4_header_t
Definition: ip4_packet.h:87
DPO_RECEIVE
@ DPO_RECEIVE
Definition: dpo.h:112
vnet_vxlan_add_del_tunnel
int vnet_vxlan_add_del_tunnel(vnet_vxlan_add_del_tunnel_args_t *a, u32 *sw_if_indexp)
Definition: vxlan.c:358
h
h
Definition: flowhash_template.h:372
error
Definition: cJSON.c:88
fib_entry_contribute_forwarding
void fib_entry_contribute_forwarding(fib_node_index_t fib_entry_index, fib_forward_chain_type_t fct, dpo_id_t *dpo)
Definition: fib_entry.c:437
vtep_addr_ref
uword vtep_addr_ref(vtep_table_t *t, u32 fib_index, ip46_address_t *ip)
Definition: vtep.c:19
vnet_sw_interface_t::flags
vnet_sw_interface_flags_t flags
Definition: interface.h:872
foreach_copy_field
#define foreach_copy_field
Definition: vxlan.c:240
random_u32
static u32 random_u32(u32 *seed)
32-bit random number generator
Definition: random.h:69
VNET_FLOOD_CLASS_TUNNEL_NORMAL
@ VNET_FLOOD_CLASS_TUNNEL_NORMAL
Definition: interface.h:821
unformat
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:978
pool_is_free_index
#define pool_is_free_index(P, I)
Use free bitmap to query whether given index is free.
Definition: pool.h:302
vec_elt
#define vec_elt(v, i)
Get vector value at index i.
Definition: vec_bootstrap.h:210
hash_set
#define hash_set(h, key, value)
Definition: hash.h:255
FIB_FORW_CHAIN_TYPE_UNICAST_IP4
@ FIB_FORW_CHAIN_TYPE_UNICAST_IP4
Contribute an object that is to be used to forward IP4 packets.
Definition: fib_types.h:108
vnet_set_interface_output_node
void vnet_set_interface_output_node(vnet_main_t *vnm, u32 hw_if_index, u32 node_index)
Set interface output node - for interface registered without its output/tx nodes created because its ...
Definition: interface_output.c:1260
fib_entry_track
fib_node_index_t fib_entry_track(u32 fib_index, const fib_prefix_t *prefix, fib_node_type_t child_type, index_t child_index, u32 *sibling)
Trackers are used on FIB entries by objects that which to track the changing state of the entry.
Definition: fib_entry_track.c:49
STRUCT_OFFSET_OF
#define STRUCT_OFFSET_OF(t, f)
Definition: clib.h:73
pool_foreach
#define pool_foreach(VAR, POOL)
Iterate through pool.
Definition: pool.h:534
vxlan_tunnel_t::vni
u32 vni
Definition: vxlan.h:90
vec_len
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
Definition: vec_bootstrap.h:142
unformat_free
static void unformat_free(unformat_input_t *i)
Definition: format.h:155
mcast_shared_get
static mcast_shared_t mcast_shared_get(ip46_address_t *ip)
Definition: geneve.c:329
clib_bitmap_get
static uword clib_bitmap_get(uword *ai, uword i)
Gets the ith bit value from a bitmap.
Definition: bitmap.h:197
len
u8 len
Definition: ip_types.api:103
vxlan_main
vxlan_main_t vxlan_main
Definition: vxlan.c:46
vxlan_add_del_tunnel_command_fn
static clib_error_t * vxlan_add_del_tunnel_command_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: vxlan.c:719
fib_forward_chain_type_t
enum fib_forward_chain_type_t_ fib_forward_chain_type_t
FIB output chain type.
create_vxlan_tunnel_command
static vlib_cli_command_t create_vxlan_tunnel_command
(constructor) VLIB_CLI_COMMAND (create_vxlan_tunnel_command)
Definition: vxlan.c:912
vnet_get_hw_interface
static vnet_hw_interface_t * vnet_get_hw_interface(vnet_main_t *vnm, u32 hw_if_index)
Definition: interface_funcs.h:44
vnet_get_main
vnet_main_t * vnet_get_main(void)
Definition: pnat_test_stubs.h:56
format.h
PREDICT_FALSE
#define PREDICT_FALSE(x)
Definition: clib.h:124
vxlan_decap_info_t
Definition: vxlan.h:63
format_flow_enabled_hw
format_function_t format_flow_enabled_hw
Definition: flow.h:287
unformat_check_input
static uword unformat_check_input(unformat_input_t *i)
Definition: format.h:163
VXLAN_HASH_MEMORY_SIZE
#define VXLAN_HASH_MEMORY_SIZE
Definition: vxlan.c:1303
unformat_vlib_node
unformat_function_t unformat_vlib_node
Definition: node_funcs.h:1241
get_decap_next_for_node
static uword get_decap_next_for_node(u32 node_index, u32 ipv4_set)
Definition: vxlan.c:687
format_vxlan_tunnel
u8 * format_vxlan_tunnel(u8 *s, va_list *args)
Definition: vxlan.c:68
VNET_HW_INTERFACE_CLASS
VNET_HW_INTERFACE_CLASS(vxlan_hw_class)
vxlan_tunnel_t::sibling_index
u32 sibling_index
The tunnel is a child of the FIB entry for its destination.
Definition: vxlan.h:131
udp_local.h
vnet_sw_interface_t::flood_class
vnet_flood_class_t flood_class
Definition: interface.h:897
fib_node_index_t
u32 fib_node_index_t
A typedef of a node index.
Definition: fib_types.h:29
uword
u64 uword
Definition: types.h:112
vnet_delete_hw_interface
void vnet_delete_hw_interface(vnet_main_t *vnm, u32 hw_if_index)
Definition: interface.c:1052
hash_unset_mem_free
static void hash_unset_mem_free(uword **h, const void *key)
Definition: hash.h:295
hash_create_mem
#define hash_create_mem(elts, key_bytes, value_bytes)
Definition: hash.h:660
hash_get
#define hash_get(h, key)
Definition: hash.h:249
ethernet_header_t
Definition: packet.h:52
vnet_hw_interface_t::dev_class_index
u32 dev_class_index
Definition: interface.h:659
vnet_vxlan_get_tunnel_index
u32 vnet_vxlan_get_tunnel_index(u32 sw_if_index)
Definition: vxlan.c:1220
clib_bihash_kv_24_8_t::value
u64 value
Definition: bihash_24_8.h:43
udp_register_dst_port
void udp_register_dst_port(vlib_main_t *vm, udp_dst_port_t dst_port, u32 node_index, u8 is_ip4)
Definition: udp_local.c:468
MFIB_SOURCE_VXLAN
@ MFIB_SOURCE_VXLAN
Definition: mfib_types.h:167
interface.h
unformat_ip46_address
unformat_function_t unformat_ip46_address
Definition: format.h:63
load_balance_get_bucket_i
static const dpo_id_t * load_balance_get_bucket_i(const load_balance_t *lb, u32 bucket)
Definition: load_balance.h:229
src_port
vl_api_ip_port_and_mask_t src_port
Definition: flow_types.api:91
vxlan4_input_node
vlib_node_registration_t vxlan4_input_node
(constructor) VLIB_REGISTER_NODE (vxlan4_input_node)
Definition: decap.c:23
vxlan_main_t::bm_ip6_bypass_enabled_by_sw_if
uword * bm_ip6_bypass_enabled_by_sw_if
Definition: vxlan.h:183
fib_proto_to_link
vnet_link_t fib_proto_to_link(fib_protocol_t proto)
Convert from a protocol to a link type.
Definition: fib_types.c:377
f64
double f64
Definition: types.h:142
hash_set_mem_alloc
static void hash_set_mem_alloc(uword **h, const void *key, uword v)
Definition: hash.h:279
vnet_flow_disable
int vnet_flow_disable(vnet_main_t *vnm, u32 flow_index, u32 hw_if_index)
Definition: flow.c:135
format_unformat_error
u8 * format_unformat_error(u8 *s, va_list *va)
Definition: unformat.c:91
vec_validate
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment)
Definition: vec.h:523
VLIB_CLI_COMMAND
#define VLIB_CLI_COMMAND(x,...)
Definition: cli.h:163
vxlan_tunnel_t::node
fib_node_t node
Linkage into the FIB object graph.
Definition: vxlan.h:116
dpo_stack_from_node
void dpo_stack_from_node(u32 child_node_index, dpo_id_t *dpo, const dpo_id_t *parent)
Stack one DPO object on another, and thus establish a child parent relationship.
Definition: dpo.c:550
src
vl_api_address_t src
Definition: gre.api:54
fib_protocol_t
enum fib_protocol_t_ fib_protocol_t
Protocol Type.
udp_is_valid_dst_port
u8 udp_is_valid_dst_port(udp_dst_port_t dst_port, u8 is_ip4)
Definition: udp_local.c:529
VNET_DEVICE_CLASS
VNET_DEVICE_CLASS(vxlan_device_class, static)
vnet_flow_t
Definition: flow.h:215
unformat_vnet_hw_interface
unformat_function_t unformat_vnet_hw_interface
Definition: interface_funcs.h:460
ALWAYS_ASSERT
#define ALWAYS_ASSERT(truth)
Definition: error_bootstrap.h:89
clib_bitmap_set
static uword * clib_bitmap_set(uword *ai, uword i, uword value)
Sets the ith bit of a bitmap to new_value Removes trailing zeros from the bitmap.
Definition: bitmap.h:167
fib_node_register_type
void fib_node_register_type(fib_node_type_t type, const fib_node_vft_t *vft)
fib_node_register_type
Definition: fib_node.c:60
mfib_table.h
vxlan_tunnel_t
Definition: vxlan.h:81
CLIB_CACHE_LINE_BYTES
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:59
mfib_prefix_t_::fp_proto
fib_protocol_t fp_proto
protocol type
Definition: mfib_types.h:33
FIB_NODE_BACK_WALK_CONTINUE
@ FIB_NODE_BACK_WALK_CONTINUE
Definition: fib_node.h:259
vlib_cli_output
void vlib_cli_output(vlib_main_t *vm, char *fmt,...)
Definition: cli.c:716
vxlan_tunnel_t::decap_next_index
u16 decap_next_index
Definition: vxlan.h:104
vxlan_main_t::vxlan6_tunnel_by_key
clib_bihash_24_8_t vxlan6_tunnel_by_key
Definition: vxlan.h:169
vnet_interface_main_t::sw_interfaces
vnet_sw_interface_t * sw_interfaces
Definition: interface.h:1014
dpo_id_t_::dpoi_proto
dpo_proto_t dpoi_proto
the data-path protocol of the type.
Definition: dpo.h:182
fib_proto_to_dpo
dpo_proto_t fib_proto_to_dpo(fib_protocol_t fib_proto)
Definition: fib_types.c:343
fib_prefix_t_::fp_addr
ip46_address_t fp_addr
The address type is not deriveable from the fp_addr member.
Definition: fib_types.h:225
vnet_set_vni_and_flags
static void vnet_set_vni_and_flags(vxlan_header_t *h, u32 vni)
Definition: vxlan_packet.h:65
vtep_addr_unref
uword vtep_addr_unref(vtep_table_t *t, u32 fib_index, ip46_address_t *ip)
Definition: vtep.c:34
fib_entry_track.h
mcast_sw_if_index
vl_api_interface_index_t mcast_sw_if_index
Definition: vxlan_gbp.api:41
vxlan_tunnel_t::next_dpo
dpo_id_t next_dpo
Definition: vxlan.h:87
DPO_ADJACENCY_MCAST
@ DPO_ADJACENCY_MCAST
Definition: dpo.h:110
vxlan_main_t
Definition: vxlan.h:160
DPO_LOAD_BALANCE
@ DPO_LOAD_BALANCE
load-balancing over a choice of [un]equal cost paths
Definition: dpo.h:104
vxlan6_encap_node
vlib_node_registration_t vxlan6_encap_node
(constructor) VLIB_REGISTER_NODE (vxlan6_encap_node)
Definition: encap.c:557
is_ip6
bool is_ip6
Definition: ip.api:43
vxlan_tunnel_t::sw_if_index
u32 sw_if_index
Definition: vxlan.h:110
vnet_hw_interface_t
Definition: interface.h:638
vnet_main_t
Definition: vnet.h:76
set_interface_ip_vxlan_bypass_command
static vlib_cli_command_t set_interface_ip_vxlan_bypass_command
(constructor) VLIB_CLI_COMMAND (set_interface_ip_vxlan_bypass_command)
Definition: vxlan.c:1116
vxlan_tunnel_t::encap_fib_index
u32 encap_fib_index
Definition: vxlan.h:107
index
u32 index
Definition: flow_types.api:221
vlib_get_node_by_name
vlib_node_t * vlib_get_node_by_name(vlib_main_t *vm, u8 *name)
Definition: node.c:45
dpo_copy
void dpo_copy(dpo_id_t *dst, const dpo_id_t *src)
atomic copy a data-plane object.
Definition: dpo.c:264
show_vxlan_tunnel_command
static vlib_cli_command_t show_vxlan_tunnel_command
(constructor) VLIB_CLI_COMMAND (show_vxlan_tunnel_command)
Definition: vxlan.c:976
vxlan4_flow_input_node
vlib_node_registration_t vxlan4_flow_input_node
(constructor) VLIB_REGISTER_NODE (vxlan4_flow_input_node)
Definition: decap.c:1304
clib_bihash_kv_16_8_t
Definition: bihash_16_8.h:40
hash_get_mem
#define hash_get_mem(h, key)
Definition: hash.h:269
set_ip6_vxlan_bypass
static clib_error_t * set_ip6_vxlan_bypass(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: vxlan.c:1124
u64
unsigned long u64
Definition: types.h:89
format_vnet_sw_if_index_name
format_function_t format_vnet_sw_if_index_name
Definition: interface_funcs.h:455
unformat_vnet_sw_interface
unformat_function_t unformat_vnet_sw_interface
Definition: interface_funcs.h:459
format
description fragment has unexpected format
Definition: map.api:433
ASSERT
#define ASSERT(truth)
Definition: error_bootstrap.h:69
vxlan_main_t::vtep_table
vtep_table_t vtep_table
Definition: vxlan.h:173
vnet_flow_get_range
int vnet_flow_get_range(vnet_main_t *vnm, char *owner, u32 count, u32 *start)
Definition: flow.c:24
mcast_shared_remove
static void mcast_shared_remove(ip46_address_t *dst)
Definition: vxlan.c:347
vec_validate_init_empty
#define vec_validate_init_empty(V, I, INIT)
Make sure vector is long enough for given index and initialize empty space (no header,...
Definition: vec.h:570
format_ip46_address
format_function_t format_ip46_address
Definition: ip46_address.h:50
clib_bihash_kv_16_8_t::key
u64 key[2]
Definition: bihash_16_8.h:42
FIB_ROUTE_PATH_FLAG_NONE
@ FIB_ROUTE_PATH_FLAG_NONE
Definition: fib_types.h:332
u32
unsigned int u32
Definition: types.h:88
VLIB_INIT_FUNCTION
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:172
ethernet_delete_interface
void ethernet_delete_interface(vnet_main_t *vnm, u32 hw_if_index)
Definition: interface.c:393
udp_header_t::dst_port
u16 dst_port
Definition: udp_packet.h:48
l2_input_config_t::feature_bitmap
u32 feature_bitmap
Definition: l2_input.h:60
table_id
u32 table_id
Definition: wireguard.api:102
dst
vl_api_ip4_address_t dst
Definition: pnat.api:41
vnet_vxlan_add_del_rx_flow
int vnet_vxlan_add_del_rx_flow(u32 hw_if_index, u32 t_index, int is_add)
Definition: vxlan.c:1181
fib_route_path_t_
A representation of a path as described by a route producer.
Definition: fib_types.h:500
ctx
long ctx[MAX_CONNS]
Definition: main.c:144
si
vnet_sw_interface_t * si
Definition: interface_output.c:398
clib_bihash_kv_24_8_t::key
u64 key[3]
Definition: bihash_24_8.h:42
set_ip4_vxlan_bypass
static clib_error_t * set_ip4_vxlan_bypass(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: vxlan.c:1067
load_balance_get
static load_balance_t * load_balance_get(index_t lbi)
Definition: load_balance.h:220
FIB_NODE_TYPE_VXLAN_TUNNEL
@ FIB_NODE_TYPE_VXLAN_TUNNEL
Definition: fib_node.h:42
as_u64
u64 as_u64
Definition: bihash_doc.h:63
instance
u32 instance
Definition: gre.api:51
pool_elts
static uword pool_elts(void *v)
Number of active elements in a pool.
Definition: pool.h:127
VXLAN_HASH_NUM_BUCKETS
#define VXLAN_HASH_NUM_BUCKETS
Definition: vxlan.c:1302
vlib_node_get_runtime
static vlib_node_runtime_t * vlib_node_get_runtime(vlib_main_t *vm, u32 node_index)
Get node runtime by node index.
Definition: node_funcs.h:116
ip6_header_t
Definition: ip6_packet.h:294
vnet_feature_enable_disable
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: pnat_test_stubs.h:50
fib_node_t_
An node in the FIB graph.
Definition: fib_node.h:301
now
f64 now
Definition: nat44_ei_out2in.c:710
hash_unset
#define hash_unset(h, key)
Definition: hash.h:261
vxlan_tunnel_back_walk
static fib_node_back_walk_rc_t vxlan_tunnel_back_walk(fib_node_t *node, fib_node_back_walk_ctx_t *ctx)
Function definition to backwalk a FIB node - Here we will restack the new dpo of VXLAN DIP to encap n...
Definition: vxlan.c:197
adj_index_t
u32 adj_index_t
An index for adjacencies.
Definition: adj_types.h:30
clib_memset
clib_memset(h->entries, 0, sizeof(h->entries[0]) *entries)
vlib_main_t
Definition: main.h:102
vxlan_main_t::vnet_main
vnet_main_t * vnet_main
Definition: vxlan.h:187
VNET_SW_INTERFACE_FLAG_HIDDEN
@ VNET_SW_INTERFACE_FLAG_HIDDEN
Definition: interface.h:855
drop_dpo_get
const dpo_id_t * drop_dpo_get(dpo_proto_t proto)
Definition: drop_dpo.c:25
vlib_node_t
Definition: node.h:247
fib_node_init
void fib_node_init(fib_node_t *node, fib_node_type_t type)
Definition: fib_node.c:185
vlib_get_main
static vlib_main_t * vlib_get_main(void)
Definition: global_funcs.h:38
u8
unsigned char u8
Definition: types.h:56
clib_error_t
Definition: clib_error.h:21
vnet_hw_interface_set_flags
clib_error_t * vnet_hw_interface_set_flags(vnet_main_t *vnm, u32 hw_if_index, vnet_hw_interface_flags_t flags)
Definition: interface.c:513
a
a
Definition: bitmap.h:544
ip
vl_api_address_t ip
Definition: l2.api:558
ip4_header_checksum
static u16 ip4_header_checksum(ip4_header_t *i)
Definition: ip4_packet.h:314
vxlan_vft
const static fib_node_vft_t vxlan_vft
Definition: vxlan.c:234
vlib_init_function_t
clib_error_t *() vlib_init_function_t(struct vlib_main_t *vm)
Definition: init.h:51
mfib_table_entry_path_update
fib_node_index_t mfib_table_entry_path_update(u32 fib_index, const mfib_prefix_t *prefix, mfib_source_t source, const fib_route_path_t *rpath)
Add n paths to an entry (aka route) in the FIB.
Definition: mfib_table.c:325
vxlan_init
clib_error_t * vxlan_init(vlib_main_t *vm)
Definition: vxlan.c:1306
default_build_rewrite
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 placeholder) rewrite.
Definition: interface.c:1705
vxlan_tunnel_t::user_instance
u32 user_instance
Definition: vxlan.h:135
fib_node_back_walk_ctx_t_
Context passed between object during a back walk.
Definition: fib_node.h:214
fib_node_vft_t_::fnv_get
fib_node_get_t fnv_get
Definition: fib_node.h:289
VNET_FLOOD_CLASS_TUNNEL_MASTER
@ VNET_FLOOD_CLASS_TUNNEL_MASTER
Definition: interface.h:819
format_decap_next
static u8 * format_decap_next(u8 *s, va_list *args)
Definition: vxlan.c:56
vxlan_rewrite
static void vxlan_rewrite(vxlan_tunnel_t *t, bool is_ip6)
Definition: vxlan.c:251
MFIB_ITF_FLAG_FORWARD
@ MFIB_ITF_FLAG_FORWARD
Definition: mfib_types.h:153
dpo_id_t_
The identity of a DPO is a combination of its type and its instance number/index of objects of that t...
Definition: dpo.h:172
rv
int __clib_unused rv
Definition: application.c:491
IP46_TYPE_ANY
@ IP46_TYPE_ANY
Definition: ip46_address.h:24
vxlan_tunnel_t::hw_if_index
u32 hw_if_index
Definition: vxlan.h:111
vxlan_tunnel_last_lock_gone
static void vxlan_tunnel_last_lock_gone(fib_node_t *node)
Function definition to inform the FIB node that its last lock has gone.
Definition: vxlan.c:221
fib_node_deinit
void fib_node_deinit(fib_node_t *node)
Definition: fib_node.c:197
vlib_time_now
static f64 vlib_time_now(vlib_main_t *vm)
Definition: main.h:325
load_balance_t_
The FIB DPO provieds;.
Definition: load_balance.h:106
vxlan_main_t::vlib_main
vlib_main_t * vlib_main
Definition: vxlan.h:186
FIB_FORW_CHAIN_TYPE_UNICAST_IP6
@ FIB_FORW_CHAIN_TYPE_UNICAST_IP6
Contribute an object that is to be used to forward IP6 packets.
Definition: fib_types.h:112
dpo_set
void dpo_set(dpo_id_t *dpo, dpo_type_t type, dpo_proto_t proto, index_t index)
Set/create a DPO ID The DPO will be locked.
Definition: dpo.c:188
vxlan_main_t::tunnels
vxlan_tunnel_t * tunnels
Definition: vxlan.h:163
vxlan_main_t::instance_used
uword * instance_used
Definition: vxlan.h:190
vlib_node_runtime_t
Definition: node.h:454
vxlan4_encap_node
vlib_node_registration_t vxlan4_encap_node
(constructor) VLIB_REGISTER_NODE (vxlan4_encap_node)
Definition: encap.c:544
vxlan_interface_admin_up_down
static clib_error_t * vxlan_interface_admin_up_down(vnet_main_t *vnm, u32 hw_if_index, u32 flags)
Definition: vxlan.c:114
vxlan_tunnel_t::src
ip46_address_t src
Definition: vxlan.h:93
l2input_main_t::configs
l2_input_config_t * configs
Definition: l2_input.h:90
vnet_flow_add
int vnet_flow_add(vnet_main_t *vnm, vnet_flow_t *flow, u32 *flow_index)
Definition: flow.c:43
vlib_cli_command_t
Definition: cli.h:92
flow.h
format_vxlan_header_with_length
static u8 * format_vxlan_header_with_length(u8 *s, va_list *args)
Definition: vxlan.c:133
ip4_main_t
IPv4 main type.
Definition: ip4.h:107
fib_table_find
u32 fib_table_find(fib_protocol_t proto, u32 table_id)
Get the index of the FIB for a Table-ID.
Definition: fib_table.c:1106
unformat_decap_next
static uword unformat_decap_next(unformat_input_t *input, va_list *args)
Definition: vxlan.c:698
sw_if_index
vl_api_interface_index_t sw_if_index
Definition: wireguard.api:34
di
void di(unformat_input_t *i)
Definition: unformat.c:163
vxlan_tunnel_t::flow_index
u32 flow_index
Definition: vxlan.h:133
vxlan_tunnel_restack_dpo
static void vxlan_tunnel_restack_dpo(vxlan_tunnel_t *t)
Definition: vxlan.c:149
vxlan_main_t::bm_ip4_bypass_enabled_by_sw_if
uword * bm_ip4_bypass_enabled_by_sw_if
Definition: vxlan.h:182
dpo_reset
void dpo_reset(dpo_id_t *dpo)
reset a DPO ID The DPO will be unlocked.
Definition: dpo.c:234
vxlan_tunnel_fib_node_get
static fib_node_t * vxlan_tunnel_fib_node_get(fib_node_index_t index)
Function definition to get a FIB node from its index.
Definition: vxlan.c:207
fib_prefix_t_
Aggregate type for a prefix.
Definition: fib_types.h:202
vxlan_tunnel_t::dst_port
u16 dst_port
Definition: vxlan.h:98
vxlan_offload_command_fn
static clib_error_t * vxlan_offload_command_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: vxlan.c:1230
FIB_ROUTE_PATH_LOCAL
@ FIB_ROUTE_PATH_LOCAL
A for-us/local path.
Definition: fib_types.h:344
type
vl_api_fib_path_type_t type
Definition: fib_types.api:123
vnet_register_interface
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:812
ethernet_register_interface
clib_error_t * ethernet_register_interface(vnet_main_t *vnm, u32 dev_class_index, u32 dev_instance, const u8 *address, u32 *hw_if_index_return, ethernet_flag_change_function_t flag_change)
Definition: interface.c:348
vnet_main_t::interface_main
vnet_interface_main_t interface_main
Definition: vnet.h:81
vxlan_decap_info_t::sw_if_index
u32 sw_if_index
Definition: vxlan.h:67
UNFORMAT_END_OF_INPUT
#define UNFORMAT_END_OF_INPUT
Definition: format.h:137
vxlan_tunnel_from_fib_node
static vxlan_tunnel_t * vxlan_tunnel_from_fib_node(fib_node_t *node)
Definition: vxlan.c:185
flags
vl_api_wireguard_peer_flags_t flags
Definition: wireguard.api:105