FD.io VPP  v21.06-3-gbb25fbf28
Vector Packet Processing
vxlan_gbp.c
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2018 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  */
16 #include <vnet/ip/format.h>
17 #include <vnet/ip/punt.h>
18 #include <vnet/fib/fib_entry.h>
19 #include <vnet/fib/fib_table.h>
21 #include <vnet/mfib/mfib_table.h>
22 #include <vnet/adj/adj_mcast.h>
23 #include <vnet/adj/rewrite.h>
24 #include <vnet/interface.h>
25 #include <vlib/vlib.h>
26 
27 /**
28  * @file
29  * @brief VXLAN GBP.
30  *
31  * VXLAN GBP provides the features of vxlan and carry group policy id.
32  */
34 
36 
37 u8 *
38 format_vxlan_gbp_tunnel_mode (u8 * s, va_list * args)
39 {
41 
42  switch (mode)
43  {
45  s = format (s, "L2");
46  break;
48  s = format (s, "L3");
49  break;
50  }
51  return (s);
52 }
53 
54 u8 *
55 format_vxlan_gbp_tunnel (u8 * s, va_list * args)
56 {
57  vxlan_gbp_tunnel_t *t = va_arg (*args, vxlan_gbp_tunnel_t *);
58 
59  s = format (s,
60  "[%d] instance %d src %U dst %U vni %d fib-idx %d"
61  " sw-if-idx %d mode %U ",
65  t->vni, t->encap_fib_index, t->sw_if_index,
67 
68  s = format (s, "encap-dpo-idx %d ", t->next_dpo.dpoi_index);
69 
71  s = format (s, "mcast-sw-if-idx %d ", t->mcast_sw_if_index);
72 
73  return s;
74 }
75 
76 static u8 *
77 format_vxlan_gbp_name (u8 * s, va_list * args)
78 {
79  u32 dev_instance = va_arg (*args, u32);
82 
83  if (dev_instance == ~0)
84  return format (s, "<cached-unused>");
85 
86  if (dev_instance >= vec_len (vxm->tunnels))
87  return format (s, "<improperly-referenced>");
88 
89  t = pool_elt_at_index (vxm->tunnels, dev_instance);
90 
91  return format (s, "vxlan_gbp_tunnel%d", t->user_instance);
92 }
93 
94 static clib_error_t *
96  u32 flags)
97 {
100  vnet_hw_interface_set_flags (vnm, hw_if_index, hw_flags);
101 
102  return /* no error */ 0;
103 }
104 
105 /* *INDENT-OFF* */
106 VNET_DEVICE_CLASS (vxlan_gbp_device_class, static) = {
107  .name = "VXLAN-GBP",
108  .format_device_name = format_vxlan_gbp_name,
109  .format_tx_trace = format_vxlan_gbp_encap_trace,
110  .admin_up_down_function = vxlan_gbp_interface_admin_up_down,
111 };
112 /* *INDENT-ON* */
113 
114 static u8 *
116 {
117  u32 dev_instance = va_arg (*args, u32);
118  s = format (s, "unimplemented dev %u", dev_instance);
119  return s;
120 }
121 
122 /* *INDENT-OFF* */
123 VNET_HW_INTERFACE_CLASS (vxlan_gbp_hw_class) = {
124  .name = "VXLAN-GBP",
125  .format_header = format_vxlan_gbp_header_with_length,
126  .build_rewrite = default_build_rewrite,
127 };
128 /* *INDENT-ON* */
129 
130 static void
132 {
133  u8 is_ip4 = ip46_address_is_ip4 (&t->dst);
134  dpo_id_t dpo = DPO_INVALID;
135  fib_forward_chain_type_t forw_type = is_ip4 ?
137 
138  fib_entry_contribute_forwarding (t->fib_entry_index, forw_type, &dpo);
139 
140  /* vxlan_gbp uses the payload hash as the udp source port
141  * hence the packet's hash is unknown
142  * skip single bucket load balance dpo's */
143  while (DPO_LOAD_BALANCE == dpo.dpoi_type)
144  {
146  if (lb->lb_n_buckets > 1)
147  break;
148 
149  dpo_copy (&dpo, load_balance_get_bucket_i (lb, 0));
150  }
151 
152  u32 encap_index = is_ip4 ?
154  dpo_stack_from_node (encap_index, &t->next_dpo, &dpo);
155  dpo_reset (&dpo);
156 }
157 
158 static vxlan_gbp_tunnel_t *
160 {
162  return ((vxlan_gbp_tunnel_t *) (((char *) node) -
164  node)));
165 }
166 
167 /**
168  * Function definition to backwalk a FIB node -
169  * Here we will restack the new dpo of VXLAN DIP to encap node.
170  */
173 {
176 }
177 
178 /**
179  * Function definition to get a FIB node from its index
180  */
181 static fib_node_t *
183 {
186 
187  t = pool_elt_at_index (vxm->tunnels, index);
188 
189  return (&t->node);
190 }
191 
192 /**
193  * Function definition to inform the FIB node that its last lock has gone.
194  */
195 static void
197 {
198  /*
199  * The VXLAN GBP tunnel is a root of the graph. As such
200  * it never has children and thus is never locked.
201  */
202  ASSERT (0);
203 }
204 
205 /*
206  * Virtual function table registered by VXLAN GBP tunnels
207  * for participation in the FIB object graph.
208  */
211  .fnv_last_lock = vxlan_gbp_tunnel_last_lock_gone,
212  .fnv_back_walk = vxlan_gbp_tunnel_back_walk,
213 };
214 
215 
216 #define foreach_copy_field \
217 _(vni) \
218 _(mode) \
219 _(mcast_sw_if_index) \
220 _(encap_fib_index) \
221 _(src) \
222 _(dst)
223 
224 static void
226 {
227  union
228  {
229  ip4_vxlan_gbp_header_t h4;
230  ip6_vxlan_gbp_header_t h6;
231  } h;
232  int len = is_ip6 ? sizeof h.h6 : sizeof h.h4;
233 
234  udp_header_t *udp;
235  vxlan_gbp_header_t *vxlan_gbp;
236  /* Fixed portion of the (outer) ip header */
237 
238  clib_memset (&h, 0, sizeof (h));
239  if (!is_ip6)
240  {
241  ip4_header_t *ip = &h.h4.ip4;
242  udp = &h.h4.udp, vxlan_gbp = &h.h4.vxlan_gbp;
243  ip->ip_version_and_header_length = 0x45;
244  ip->ttl = 254;
245  ip->protocol = IP_PROTOCOL_UDP;
246 
247  ip->src_address = t->src.ip4;
248  ip->dst_address = t->dst.ip4;
249 
250  /* we fix up the ip4 header length and checksum after-the-fact */
251  ip->checksum = ip4_header_checksum (ip);
252  }
253  else
254  {
255  ip6_header_t *ip = &h.h6.ip6;
256  udp = &h.h6.udp, vxlan_gbp = &h.h6.vxlan_gbp;
257  ip->ip_version_traffic_class_and_flow_label =
258  clib_host_to_net_u32 (6 << 28);
259  ip->hop_limit = 255;
260  ip->protocol = IP_PROTOCOL_UDP;
261 
262  ip->src_address = t->src.ip6;
263  ip->dst_address = t->dst.ip6;
264  }
265 
266  /* UDP header, randomize src port on something, maybe? */
267  udp->src_port = clib_host_to_net_u16 (47789);
268  udp->dst_port = clib_host_to_net_u16 (UDP_DST_PORT_vxlan_gbp);
269 
270  /* VXLAN header */
271  vxlan_gbp_set_header (vxlan_gbp, t->vni);
272  vnet_rewrite_set_data (*t, &h, len);
273 }
274 
275 static uword
276 vtep_addr_ref (ip46_address_t * ip)
277 {
278  uword *vtep = ip46_address_is_ip4 (ip) ?
279  hash_get (vxlan_gbp_main.vtep4, ip->ip4.as_u32) :
281  if (vtep)
282  return ++(*vtep);
284  hash_set (vxlan_gbp_main.vtep4, ip->ip4.as_u32, 1) :
286  return 1;
287 }
288 
289 static uword
290 vtep_addr_unref (ip46_address_t * ip)
291 {
292  uword *vtep = ip46_address_is_ip4 (ip) ?
293  hash_get (vxlan_gbp_main.vtep4, ip->ip4.as_u32) :
295  ALWAYS_ASSERT (vtep);
296  if (--(*vtep) != 0)
297  return *vtep;
299  hash_unset (vxlan_gbp_main.vtep4, ip->ip4.as_u32) :
301  return 0;
302 }
303 
304 /* *INDENT-OFF* */
305 typedef CLIB_PACKED(union
306 {
307  struct
308  {
309  fib_node_index_t mfib_entry_index;
310  adj_index_t mcast_adj_index;
311  };
312  u64 as_u64;
313 }) mcast_shared_t;
314 /* *INDENT-ON* */
315 
316 static inline mcast_shared_t
317 mcast_shared_get (ip46_address_t * ip)
318 {
321  ALWAYS_ASSERT (p);
322  mcast_shared_t ret = {.as_u64 = *p };
323  return ret;
324 }
325 
326 static inline void
327 mcast_shared_add (ip46_address_t * dst, fib_node_index_t mfei, adj_index_t ai)
328 {
329  mcast_shared_t new_ep = {
330  .mcast_adj_index = ai,
331  .mfib_entry_index = mfei,
332  };
333 
335 }
336 
337 static inline void
338 mcast_shared_remove (ip46_address_t * dst)
339 {
340  mcast_shared_t ep = mcast_shared_get (dst);
341 
342  adj_unlock (ep.mcast_adj_index);
344 
346 }
347 
348 inline void
350 {
352 
353  if (vxm->udp_ports_registered == 0)
354  {
355  udp_register_dst_port (vxm->vlib_main, UDP_DST_PORT_vxlan_gbp,
356  vxlan4_gbp_input_node.index, /* is_ip4 */ 1);
357  udp_register_dst_port (vxm->vlib_main, UDP_DST_PORT_vxlan6_gbp,
358  vxlan6_gbp_input_node.index, /* is_ip4 */ 0);
359  }
360  /*
361  * Counts the number of vxlan_gbp tunnels
362  */
363  vxm->udp_ports_registered += 1;
364 }
365 
366 inline void
368 {
370 
371  ASSERT (vxm->udp_ports_registered != 0);
372 
373  if (vxm->udp_ports_registered == 1)
374  {
375  udp_unregister_dst_port (vxm->vlib_main, UDP_DST_PORT_vxlan_gbp,
376  /* is_ip4 */ 1);
377  udp_unregister_dst_port (vxm->vlib_main, UDP_DST_PORT_vxlan6_gbp,
378  /* is_ip4 */ 0);
379  }
380 
381  vxm->udp_ports_registered -= 1;
382 }
383 
386 {
388  vxlan_gbp_tunnel_t *t = 0;
389  vnet_main_t *vnm = vxm->vnet_main;
390  u64 *p;
391  u32 sw_if_index = ~0;
394  u32 is_ip6 = a->is_ip6;
395 
396  int not_found;
397  if (!is_ip6)
398  {
399  key4.key[0] = ip46_address_is_multicast (&a->dst) ?
400  a->dst.ip4.as_u32 :
401  a->dst.ip4.as_u32 | (((u64) a->src.ip4.as_u32) << 32);
402  key4.key[1] = (((u64) a->encap_fib_index) << 32)
403  | clib_host_to_net_u32 (a->vni << 8);
404  not_found =
405  clib_bihash_search_inline_16_8 (&vxm->vxlan4_gbp_tunnel_by_key,
406  &key4);
407  p = &key4.value;
408  }
409  else
410  {
411  key6.key[0] = a->dst.ip6.as_u64[0];
412  key6.key[1] = a->dst.ip6.as_u64[1];
413  key6.key[2] = (((u64) a->encap_fib_index) << 32)
414  | clib_host_to_net_u32 (a->vni << 8);
415  not_found =
416  clib_bihash_search_inline_24_8 (&vxm->vxlan6_gbp_tunnel_by_key,
417  &key6);
418  p = &key6.value;
419  }
420 
421  if (not_found)
422  p = 0;
423 
424  if (a->is_add)
425  {
426  l2input_main_t *l2im = &l2input_main;
427  u32 dev_instance; /* real dev instance tunnel index */
428  u32 user_instance; /* request and actual instance number */
429 
430  /* adding a tunnel: tunnel must not already exist */
431  if (p)
432  {
433  t = pool_elt_at_index (vxm->tunnels, *p);
434  *sw_if_indexp = t->sw_if_index;
435  return VNET_API_ERROR_TUNNEL_EXIST;
436  }
438  clib_memset (t, 0, sizeof (*t));
439  dev_instance = t - vxm->tunnels;
440 
441  /* copy from arg structure */
442 #define _(x) t->x = a->x;
444 #undef _
445 
447  /*
448  * Reconcile the real dev_instance and a possible requested instance.
449  */
450  user_instance = a->instance;
451  if (user_instance == ~0)
452  user_instance = dev_instance;
453  if (hash_get (vxm->instance_used, user_instance))
454  {
455  pool_put (vxm->tunnels, t);
456  return VNET_API_ERROR_INSTANCE_IN_USE;
457  }
458  hash_set (vxm->instance_used, user_instance, 1);
459 
460  t->dev_instance = dev_instance; /* actual */
461  t->user_instance = user_instance; /* name */
462 
463  /* copy the key */
464  int add_failed;
465  if (is_ip6)
466  {
467  key6.value = (u64) dev_instance;
468  add_failed =
469  clib_bihash_add_del_24_8 (&vxm->vxlan6_gbp_tunnel_by_key, &key6,
470  1 /*add */ );
471  }
472  else
473  {
474  key4.value = (u64) dev_instance;
475  add_failed =
476  clib_bihash_add_del_16_8 (&vxm->vxlan4_gbp_tunnel_by_key, &key4,
477  1 /*add */ );
478  }
479 
480  if (add_failed)
481  {
482  pool_put (vxm->tunnels, t);
483  return VNET_API_ERROR_INVALID_REGISTRATION;
484  }
485 
487 
489  (vnm, vxlan_gbp_device_class.index, dev_instance,
490  vxlan_gbp_hw_class.index, dev_instance);
492 
493  /* Set vxlan_gbp tunnel output node */
494  u32 encap_index = !is_ip6 ?
496  vnet_set_interface_output_node (vnm, t->hw_if_index, encap_index);
497 
498  t->sw_if_index = sw_if_index = hi->sw_if_index;
499 
500  if (VXLAN_GBP_TUNNEL_MODE_L3 == t->mode)
501  {
504  }
505 
507  ~0);
508  vxm->tunnel_index_by_sw_if_index[sw_if_index] = dev_instance;
509 
510  /* setup l2 input config with l2 feature and bd 0 to drop packet */
512  l2im->configs[sw_if_index].feature_bitmap = L2INPUT_FEAT_DROP;
513  l2im->configs[sw_if_index].bd_index = 0;
514 
519 
521  fib_prefix_t tun_dst_pfx;
523 
524  fib_prefix_from_ip46_addr (&t->dst, &tun_dst_pfx);
525  if (!ip46_address_is_multicast (&t->dst))
526  {
527  /* Unicast tunnel -
528  * source the FIB entry for the tunnel's destination
529  * and become a child thereof. The tunnel will then get poked
530  * when the forwarding for the entry updates, and the tunnel can
531  * re-stack accordingly
532  */
533  vtep_addr_ref (&t->src);
535  &tun_dst_pfx,
537  dev_instance,
538  &t->sibling_index);
540  }
541  else
542  {
543  /* Multicast tunnel -
544  * as the same mcast group can be used for multiple mcast tunnels
545  * with different VNIs, create the output fib adjacency only if
546  * it does not already exist
547  */
549 
550  if (vtep_addr_ref (&t->dst) == 1)
551  {
552  fib_node_index_t mfei;
553  adj_index_t ai;
555  .frp_proto = fib_proto_to_dpo (fp),
556  .frp_addr = zero_addr,
557  .frp_sw_if_index = 0xffffffff,
558  .frp_fib_index = ~0,
559  .frp_weight = 0,
560  .frp_flags = FIB_ROUTE_PATH_LOCAL,
561  .frp_mitf_flags = MFIB_ITF_FLAG_FORWARD,
562  };
563  const mfib_prefix_t mpfx = {
564  .fp_proto = fp,
565  .fp_len = (is_ip6 ? 128 : 32),
566  .fp_grp_addr = tun_dst_pfx.fp_addr,
567  };
568 
569  /*
570  * Setup the (*,G) to receive traffic on the mcast group
571  * - the forwarding interface is for-us
572  * - the accepting interface is that from the API
573  */
575  &mpfx,
577 
578  path.frp_sw_if_index = a->mcast_sw_if_index;
579  path.frp_flags = FIB_ROUTE_PATH_FLAG_NONE;
580  path.frp_mitf_flags = MFIB_ITF_FLAG_ACCEPT;
582  &mpfx,
584  &path);
585 
586  /*
587  * Create the mcast adjacency to send traffic to the group
588  */
589  ai = adj_mcast_add_or_lock (fp,
590  fib_proto_to_link (fp),
591  a->mcast_sw_if_index);
592 
593  /*
594  * create a new end-point
595  */
596  mcast_shared_add (&t->dst, mfei, ai);
597  }
598 
599  dpo_id_t dpo = DPO_INVALID;
600  mcast_shared_t ep = mcast_shared_get (&t->dst);
601 
602  /* Stack shared mcast dst mac addr rewrite on encap */
604  fib_proto_to_dpo (fp), ep.mcast_adj_index);
605 
606  dpo_stack_from_node (encap_index, &t->next_dpo, &dpo);
607  dpo_reset (&dpo);
608  flood_class = VNET_FLOOD_CLASS_TUNNEL_MASTER;
609  }
610 
612  flood_class;
613  }
614  else
615  {
616  /* deleting a tunnel: tunnel must exist */
617  if (!p)
618  return VNET_API_ERROR_NO_SUCH_ENTRY;
619 
620  u32 instance = p[0];
621  t = pool_elt_at_index (vxm->tunnels, instance);
622 
624  vnet_sw_interface_set_flags (vnm, sw_if_index, 0 /* down */ );
625 
626  if (VXLAN_GBP_TUNNEL_MODE_L3 == t->mode)
627  {
630  }
631 
633 
634  if (!is_ip6)
635  clib_bihash_add_del_16_8 (&vxm->vxlan4_gbp_tunnel_by_key, &key4,
636  0 /*del */ );
637  else
638  clib_bihash_add_del_24_8 (&vxm->vxlan6_gbp_tunnel_by_key, &key6,
639  0 /*del */ );
640 
641  if (!ip46_address_is_multicast (&t->dst))
642  {
643  vtep_addr_unref (&t->src);
645  }
646  else if (vtep_addr_unref (&t->dst) == 0)
647  {
648  mcast_shared_remove (&t->dst);
649  }
650 
654 
655  fib_node_deinit (&t->node);
656  pool_put (vxm->tunnels, t);
657  }
658 
659  if (sw_if_indexp)
660  *sw_if_indexp = sw_if_index;
661 
662  return 0;
663 }
664 
665 int
667 {
669  vxlan_gbp_tunnel_t *t = 0;
670  u32 ti;
671 
673  return VNET_API_ERROR_NO_SUCH_ENTRY;
674 
676  if (~0 != ti)
677  {
678  t = pool_elt_at_index (vxm->tunnels, ti);
679 
681  .is_add = 0,
682  .is_ip6 = !ip46_address_is_ip4 (&t->src),
683  .vni = t->vni,
684  .src = t->src,
685  .dst = t->dst,
686  .instance = ~0,
687  };
688 
689  return (vnet_vxlan_gbp_tunnel_add_del (&args, NULL));
690  }
691 
692  return VNET_API_ERROR_NO_SUCH_ENTRY;
693 }
694 
695 static uword
697 {
699  vlib_main_t *vm = vxm->vlib_main;
700  uword input_node = (ipv4_set) ? vxlan4_gbp_input_node.index :
701  vxlan6_gbp_input_node.index;
702 
703  return vlib_node_add_next (vm, input_node, node_index);
704 }
705 
706 static uword
707 unformat_decap_next (unformat_input_t * input, va_list * args)
708 {
709  u32 *result = va_arg (*args, u32 *);
710  u32 ipv4_set = va_arg (*args, int);
712  vlib_main_t *vm = vxm->vlib_main;
713  u32 node_index;
714  u32 tmp;
715 
716  if (unformat (input, "l2"))
717  *result = VXLAN_GBP_INPUT_NEXT_L2_INPUT;
718  else if (unformat (input, "node %U", unformat_vlib_node, vm, &node_index))
719  *result = get_decap_next_for_node (node_index, ipv4_set);
720  else if (unformat (input, "%d", &tmp))
721  *result = tmp;
722  else
723  return 0;
724  return 1;
725 }
726 
727 static clib_error_t *
729  unformat_input_t * input,
730  vlib_cli_command_t * cmd)
731 {
732  unformat_input_t _line_input, *line_input = &_line_input;
733  ip46_address_t src = ip46_address_initializer, dst =
736  u8 is_add = 1;
737  u8 src_set = 0;
738  u8 dst_set = 0;
739  u8 grp_set = 0;
740  u8 ipv4_set = 0;
741  u8 ipv6_set = 0;
742  u32 instance = ~0;
743  u32 encap_fib_index = 0;
744  u32 mcast_sw_if_index = ~0;
745  u32 decap_next_index = VXLAN_GBP_INPUT_NEXT_L2_INPUT;
746  u32 vni = 0;
747  u32 table_id;
748  clib_error_t *parse_error = NULL;
749 
750  /* Get a line of input. */
751  if (!unformat_user (input, unformat_line_input, line_input))
752  return 0;
753 
754  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
755  {
756  if (unformat (line_input, "del"))
757  {
758  is_add = 0;
759  }
760  else if (unformat (line_input, "instance %d", &instance))
761  ;
762  else if (unformat (line_input, "src %U",
764  {
765  src_set = 1;
766  ip46_address_is_ip4 (&src) ? (ipv4_set = 1) : (ipv6_set = 1);
767  }
768  else if (unformat (line_input, "dst %U",
770  {
771  dst_set = 1;
772  ip46_address_is_ip4 (&dst) ? (ipv4_set = 1) : (ipv6_set = 1);
773  }
774  else if (unformat (line_input, "group %U %U",
778  {
779  grp_set = dst_set = 1;
780  ip46_address_is_ip4 (&dst) ? (ipv4_set = 1) : (ipv6_set = 1);
781  }
782  else if (unformat (line_input, "encap-vrf-id %d", &table_id))
783  {
784  encap_fib_index =
785  fib_table_find (fib_ip_proto (ipv6_set), table_id);
786  }
787  else if (unformat (line_input, "decap-next %U", unformat_decap_next,
788  &decap_next_index, ipv4_set))
789  ;
790  else if (unformat (line_input, "vni %d", &vni))
791  ;
792  else
793  {
794  parse_error = clib_error_return (0, "parse error: '%U'",
795  format_unformat_error, line_input);
796  break;
797  }
798  }
799 
800  unformat_free (line_input);
801 
802  if (parse_error)
803  return parse_error;
804 
805  if (encap_fib_index == ~0)
806  return clib_error_return (0, "nonexistent encap-vrf-id %d", table_id);
807 
808  if (src_set == 0)
809  return clib_error_return (0, "tunnel src address not specified");
810 
811  if (dst_set == 0)
812  return clib_error_return (0, "tunnel dst address not specified");
813 
814  if (grp_set && !ip46_address_is_multicast (&dst))
815  return clib_error_return (0, "tunnel group address not multicast");
816 
817  if (grp_set == 0 && ip46_address_is_multicast (&dst))
818  return clib_error_return (0, "dst address must be unicast");
819 
820  if (grp_set && mcast_sw_if_index == ~0)
821  return clib_error_return (0, "tunnel nonexistent multicast device");
822 
823  if (ipv4_set && ipv6_set)
824  return clib_error_return (0, "both IPv4 and IPv6 addresses specified");
825 
826  if (ip46_address_cmp (&src, &dst) == 0)
827  return clib_error_return (0, "src and dst addresses are identical");
828 
829  if (decap_next_index == ~0)
830  return clib_error_return (0, "next node not found");
831 
832  if (vni == 0)
833  return clib_error_return (0, "vni not specified");
834 
835  if (vni >> 24)
836  return clib_error_return (0, "vni %d out of range", vni);
837 
839  .is_add = is_add,
840  .is_ip6 = ipv6_set,
841  .instance = instance,
842 #define _(x) .x = x,
844 #undef _
845  };
846 
847  u32 tunnel_sw_if_index;
848  int rv = vnet_vxlan_gbp_tunnel_add_del (&a, &tunnel_sw_if_index);
849 
850  switch (rv)
851  {
852  case 0:
853  if (is_add)
855  vnet_get_main (), tunnel_sw_if_index);
856  break;
857 
858  case VNET_API_ERROR_TUNNEL_EXIST:
859  return clib_error_return (0, "tunnel already exists...");
860 
861  case VNET_API_ERROR_NO_SUCH_ENTRY:
862  return clib_error_return (0, "tunnel does not exist...");
863 
864  case VNET_API_ERROR_INSTANCE_IN_USE:
865  return clib_error_return (0, "Instance is in use");
866 
867  default:
868  return clib_error_return
869  (0, "vnet_vxlan_gbp_tunnel_add_del returned %d", rv);
870  }
871 
872  return 0;
873 }
874 
875 /*?
876  * Add or delete a VXLAN Tunnel.
877  *
878  * VXLAN provides the features needed to allow L2 bridge domains (BDs)
879  * to span multiple servers. This is done by building an L2 overlay on
880  * top of an L3 network underlay using VXLAN tunnels.
881  *
882  * This makes it possible for servers to be co-located in the same data
883  * center or be separated geographically as long as they are reachable
884  * through the underlay L3 network.
885  *
886  * You can refer to this kind of L2 overlay bridge domain as a VXLAN
887  * (Virtual eXtensible VLAN) segment.
888  *
889  * @cliexpar
890  * Example of how to create a VXLAN Tunnel:
891  * @cliexcmd{create vxlan_gbp tunnel src 10.0.3.1 dst 10.0.3.3 vni 13 encap-vrf-id 7}
892  * Example of how to create a VXLAN Tunnel with a known name, vxlan_gbp_tunnel42:
893  * @cliexcmd{create vxlan_gbp tunnel src 10.0.3.1 dst 10.0.3.3 instance 42}
894  * Example of how to create a multicast VXLAN Tunnel with a known name, vxlan_gbp_tunnel23:
895  * @cliexcmd{create vxlan_gbp tunnel src 10.0.3.1 group 239.1.1.1 GigabitEthernet0/8/0 instance 23}
896  * Example of how to delete a VXLAN Tunnel:
897  * @cliexcmd{create vxlan_gbp tunnel src 10.0.3.1 dst 10.0.3.3 vni 13 del}
898  ?*/
899 /* *INDENT-OFF* */
901  .path = "create vxlan-gbp tunnel",
902  .short_help =
903  "create vxlan-gbp tunnel src <local-vtep-addr>"
904  " {dst <remote-vtep-addr>|group <mcast-vtep-addr> <intf-name>} vni <nn>"
905  " [instance <id>]"
906  " [encap-vrf-id <nn>] [decap-next [l2|node <name>]] [del]",
908 };
909 /* *INDENT-ON* */
910 
911 static clib_error_t *
913  unformat_input_t * input,
914  vlib_cli_command_t * cmd)
915 {
918  int raw = 0;
919 
921  {
922  if (unformat (input, "raw"))
923  raw = 1;
924  else
925  return clib_error_return (0, "parse error: '%U'",
926  format_unformat_error, input);
927  }
928 
929  if (pool_elts (vxm->tunnels) == 0)
930  vlib_cli_output (vm, "No vxlan-gbp tunnels configured...");
931 
932 /* *INDENT-OFF* */
933  pool_foreach (t, vxm->tunnels)
934  {
936  }
937 /* *INDENT-ON* */
938 
939  if (raw)
940  {
941  vlib_cli_output (vm, "Raw IPv4 Hash Table:\n%U\n",
942  format_bihash_16_8, &vxm->vxlan4_gbp_tunnel_by_key,
943  1 /* verbose */ );
944  vlib_cli_output (vm, "Raw IPv6 Hash Table:\n%U\n",
945  format_bihash_24_8, &vxm->vxlan6_gbp_tunnel_by_key,
946  1 /* verbose */ );
947  }
948 
949  return 0;
950 }
951 
952 /*?
953  * Display all the VXLAN Tunnel entries.
954  *
955  * @cliexpar
956  * Example of how to display the VXLAN Tunnel entries:
957  * @cliexstart{show vxlan_gbp tunnel}
958  * [0] src 10.0.3.1 dst 10.0.3.3 vni 13 encap_fib_index 0 sw_if_index 5 decap_next l2
959  * @cliexend
960  ?*/
961 /* *INDENT-OFF* */
963  .path = "show vxlan-gbp tunnel",
964  .short_help = "show vxlan-gbp tunnel [raw]",
966 };
967 /* *INDENT-ON* */
968 
969 
970 void
972 {
973  if (is_ip6)
974  vnet_feature_enable_disable ("ip6-unicast", "ip6-vxlan-gbp-bypass",
975  sw_if_index, is_enable, 0, 0);
976  else
977  vnet_feature_enable_disable ("ip4-unicast", "ip4-vxlan-gbp-bypass",
978  sw_if_index, is_enable, 0, 0);
979 }
980 
981 
982 static clib_error_t *
984  unformat_input_t * input, vlib_cli_command_t * cmd)
985 {
986  unformat_input_t _line_input, *line_input = &_line_input;
987  vnet_main_t *vnm = vnet_get_main ();
988  clib_error_t *error = 0;
989  u32 sw_if_index, is_enable;
990 
991  sw_if_index = ~0;
992  is_enable = 1;
993 
994  if (!unformat_user (input, unformat_line_input, line_input))
995  return 0;
996 
997  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
998  {
999  if (unformat_user
1000  (line_input, unformat_vnet_sw_interface, vnm, &sw_if_index))
1001  ;
1002  else if (unformat (line_input, "del"))
1003  is_enable = 0;
1004  else
1005  {
1006  error = unformat_parse_error (line_input);
1007  goto done;
1008  }
1009  }
1010 
1011  if (~0 == sw_if_index)
1012  {
1013  error = clib_error_return (0, "unknown interface `%U'",
1014  format_unformat_error, line_input);
1015  goto done;
1016  }
1017 
1019 
1020 done:
1021  unformat_free (line_input);
1022 
1023  return error;
1024 }
1025 
1026 static clib_error_t *
1028  unformat_input_t * input, vlib_cli_command_t * cmd)
1029 {
1030  return set_ip_vxlan_gbp_bypass (0, input, cmd);
1031 }
1032 
1033 /*?
1034  * This command adds the 'ip4-vxlan-gbp-bypass' graph node for a given interface.
1035  * By adding the IPv4 vxlan_gbp-bypass graph node to an interface, the node checks
1036  * for and validate input vxlan_gbp packet and bypass ip4-lookup, ip4-local,
1037  * ip4-udp-lookup nodes to speedup vxlan_gbp packet forwarding. This node will
1038  * cause extra overhead to for non-vxlan_gbp packets which is kept at a minimum.
1039  *
1040  * @cliexpar
1041  * @parblock
1042  * Example of graph node before ip4-vxlan_gbp-bypass is enabled:
1043  * @cliexstart{show vlib graph ip4-vxlan_gbp-bypass}
1044  * Name Next Previous
1045  * ip4-vxlan-gbp-bypass error-drop [0]
1046  * vxlan4-gbp-input [1]
1047  * ip4-lookup [2]
1048  * @cliexend
1049  *
1050  * Example of how to enable ip4-vxlan-gbp-bypass on an interface:
1051  * @cliexcmd{set interface ip vxlan-gbp-bypass GigabitEthernet2/0/0}
1052  *
1053  * Example of graph node after ip4-vxlan-gbp-bypass is enabled:
1054  * @cliexstart{show vlib graph ip4-vxlan-gbp-bypass}
1055  * Name Next Previous
1056  * ip4-vxlan-gbp-bypass error-drop [0] ip4-input
1057  * vxlan4-gbp-input [1] ip4-input-no-checksum
1058  * ip4-lookup [2]
1059  * @cliexend
1060  *
1061  * Example of how to display the feature enabled on an interface:
1062  * @cliexstart{show ip interface features GigabitEthernet2/0/0}
1063  * IP feature paths configured on GigabitEthernet2/0/0...
1064  * ...
1065  * ipv4 unicast:
1066  * ip4-vxlan-gbp-bypass
1067  * ip4-lookup
1068  * ...
1069  * @cliexend
1070  *
1071  * Example of how to disable ip4-vxlan-gbp-bypass on an interface:
1072  * @cliexcmd{set interface ip vxlan-gbp-bypass GigabitEthernet2/0/0 del}
1073  * @endparblock
1074 ?*/
1075 /* *INDENT-OFF* */
1077  .path = "set interface ip vxlan-gbp-bypass",
1078  .function = set_ip4_vxlan_gbp_bypass,
1079  .short_help = "set interface ip vxlan-gbp-bypass <interface> [del]",
1080 };
1081 /* *INDENT-ON* */
1082 
1083 static clib_error_t *
1085  unformat_input_t * input, vlib_cli_command_t * cmd)
1086 {
1087  return set_ip_vxlan_gbp_bypass (1, input, cmd);
1088 }
1089 
1090 /*?
1091  * This command adds the 'ip6-vxlan-gbp-bypass' graph node for a given interface.
1092  * By adding the IPv6 vxlan-gbp-bypass graph node to an interface, the node checks
1093  * for and validate input vxlan_gbp packet and bypass ip6-lookup, ip6-local,
1094  * ip6-udp-lookup nodes to speedup vxlan_gbp packet forwarding. This node will
1095  * cause extra overhead to for non-vxlan packets which is kept at a minimum.
1096  *
1097  * @cliexpar
1098  * @parblock
1099  * Example of graph node before ip6-vxlan-gbp-bypass is enabled:
1100  * @cliexstart{show vlib graph ip6-vxlan-gbp-bypass}
1101  * Name Next Previous
1102  * ip6-vxlan-gbp-bypass error-drop [0]
1103  * vxlan6-gbp-input [1]
1104  * ip6-lookup [2]
1105  * @cliexend
1106  *
1107  * Example of how to enable ip6-vxlan-gbp-bypass on an interface:
1108  * @cliexcmd{set interface ip6 vxlan-gbp-bypass GigabitEthernet2/0/0}
1109  *
1110  * Example of graph node after ip6-vxlan-gbp-bypass is enabled:
1111  * @cliexstart{show vlib graph ip6-vxlan-gbp-bypass}
1112  * Name Next Previous
1113  * ip6-vxlan-gbp-bypass error-drop [0] ip6-input
1114  * vxlan6-gbp-input [1] ip4-input-no-checksum
1115  * ip6-lookup [2]
1116  * @cliexend
1117  *
1118  * Example of how to display the feature enabled on an interface:
1119  * @cliexstart{show ip interface features GigabitEthernet2/0/0}
1120  * IP feature paths configured on GigabitEthernet2/0/0...
1121  * ...
1122  * ipv6 unicast:
1123  * ip6-vxlan-gbp-bypass
1124  * ip6-lookup
1125  * ...
1126  * @cliexend
1127  *
1128  * Example of how to disable ip6-vxlan-gbp-bypass on an interface:
1129  * @cliexcmd{set interface ip6 vxlan-gbp-bypass GigabitEthernet2/0/0 del}
1130  * @endparblock
1131 ?*/
1132 /* *INDENT-OFF* */
1134  .path = "set interface ip6 vxlan-gbp-bypass",
1135  .function = set_ip6_vxlan_gbp_bypass,
1136  .short_help = "set interface ip6 vxlan-gbp-bypass <interface> [del]",
1137 };
1138 /* *INDENT-ON* */
1139 
1140 #define VXLAN_GBP_HASH_NUM_BUCKETS (2 * 1024)
1141 #define VXLAN_GBP_HASH_MEMORY_SIZE (1 << 20)
1142 
1143 clib_error_t *
1145 {
1147 
1148  vxm->vnet_main = vnet_get_main ();
1149  vxm->vlib_main = vm;
1150 
1151  /* initialize the ip6 hash */
1152  clib_bihash_init_16_8 (&vxm->vxlan4_gbp_tunnel_by_key, "vxlan4-gbp",
1155  clib_bihash_init_24_8 (&vxm->vxlan6_gbp_tunnel_by_key, "vxlan6-gbp",
1158  vxm->vtep6 = hash_create_mem (0, sizeof (ip6_address_t), sizeof (uword));
1159  vxm->mcast_shared = hash_create_mem (0,
1160  sizeof (ip46_address_t),
1161  sizeof (mcast_shared_t));
1162 
1164 
1165  punt_hdl = vlib_punt_client_register ("vxlan-gbp");
1166 
1167  vlib_punt_reason_alloc (punt_hdl, "VXLAN-GBP-no-such-v4-tunnel", NULL, NULL,
1169  VNET_PUNT_REASON_F_IP4_PACKET,
1171  vlib_punt_reason_alloc (punt_hdl, "VXLAN-GBP-no-such-v6-tunnel", NULL, NULL,
1173  VNET_PUNT_REASON_F_IP6_PACKET,
1175 
1176  return (0);
1177 }
1178 
1179 /* *INDENT-OFF* */
1181 {
1182  .runs_after = VLIB_INITS("punt_init"),
1183 };
1184 /* *INDENT-ON* */
1185 
1186 /*
1187  * fd.io coding-style-patch-verification: ON
1188  *
1189  * Local Variables:
1190  * eval: (c-set-style "gnu")
1191  * End:
1192  */
vlib.h
vnet_int_vxlan_gbp_bypass_mode
void vnet_int_vxlan_gbp_bypass_mode(u32 sw_if_index, u8 is_ip6, u8 is_enable)
Definition: vxlan_gbp.c:971
vxlan_gbp_tunnel_from_fib_node
static vxlan_gbp_tunnel_t * vxlan_gbp_tunnel_from_fib_node(fib_node_t *node)
Definition: vxlan_gbp.c:159
vxlan_gbp_tunnel_t::sibling_index
u32 sibling_index
The tunnel is a child of the FIB entry for its destination.
Definition: vxlan_gbp.h:126
tmp
u32 * tmp
Definition: interface_output.c:1078
vxlan_gbp_tunnel_back_walk
static fib_node_back_walk_rc_t vxlan_gbp_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_gbp.c:172
vnet_rewrite_set_data
#define vnet_rewrite_set_data(rw, data, data_bytes)
Definition: rewrite.h:158
fib_entry.h
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
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
format_vxlan_gbp_encap_trace
u8 * format_vxlan_gbp_encap_trace(u8 *s, va_list *args)
Definition: encap.c:59
raw
const char *const const char *const raw
Definition: cJSON.h:270
vxlan_gbp_vft
const static fib_node_vft_t vxlan_gbp_vft
Definition: vxlan_gbp.c:209
vnet_sw_interface_t
Definition: interface.h:868
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
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
vxlan_gbp_rewrite
static void vxlan_gbp_rewrite(vxlan_gbp_tunnel_t *t, bool is_ip6)
Definition: vxlan_gbp.c:225
vxlan_gbp_tunnel_t::hw_if_index
u32 hw_if_index
Definition: vxlan_gbp.h:97
l2input_main
l2input_main_t l2input_main
Definition: l2_input_node.c:78
format_vnet_punt_reason_flags
u8 * format_vnet_punt_reason_flags(u8 *s, va_list *args)
Definition: punt.c:849
zero_addr
const ip46_address_t zero_addr
#include <vnet/feature/feature.h>
Definition: lookup.c:182
l2input_main_t
Definition: l2_input.h:83
l2_input_config_t::bd_index
u16 bd_index
Definition: l2_input.h:51
ip46_address_is_multicast
static uword ip46_address_is_multicast(const ip46_address_t *a)
Definition: ip46_address.h:154
vxlan_gbp_main_t::tunnels
vxlan_gbp_tunnel_t * tunnels
Definition: vxlan_gbp.h:168
dpo_id_t_::dpoi_type
dpo_type_t dpoi_type
the type
Definition: dpo.h:178
VNET_DEVICE_CLASS
VNET_DEVICE_CLASS(vxlan_gbp_device_class, static)
ip4_sw_interface_enable_disable
void ip4_sw_interface_enable_disable(u32 sw_if_index, u32 is_enable)
Definition: ip4_forward.c:601
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
vnet_vxlan_gbp_tunnel_add_del_args_t::is_add
u8 is_add
Definition: vxlan_gbp.h:214
VXLAN_GBP_TUNNEL_MODE_L2
@ VXLAN_GBP_TUNNEL_MODE_L2
Definition: vxlan_gbp.h:65
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_gbp_tunnel_t::fib_entry_index
fib_node_index_t fib_entry_index
Definition: vxlan_gbp.h:117
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
set_ip4_vxlan_gbp_bypass
static clib_error_t * set_ip4_vxlan_gbp_bypass(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: vxlan_gbp.c:1027
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
fib_node_vft_t_
A FIB graph nodes virtual function table.
Definition: fib_node.h:288
rewrite.h
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
set_ip_vxlan_gbp_bypass
static clib_error_t * set_ip_vxlan_gbp_bypass(u32 is_ip6, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: vxlan_gbp.c:983
vlib_cli_command_t::path
char * path
Definition: cli.h:96
mcast_shared_remove
static void mcast_shared_remove(ip46_address_t *dst)
Definition: vxlan_gbp.c:338
show_vxlan_gbp_tunnel_command_fn
static clib_error_t * show_vxlan_gbp_tunnel_command_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: vxlan_gbp.c:912
mcast_shared_add
static void mcast_shared_add(ip46_address_t *dst, fib_node_index_t mfei, adj_index_t ai)
Definition: vxlan_gbp.c:327
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
mode
vl_api_tunnel_mode_t mode
Definition: gre.api:48
vnet_vxlan_gbp_tunnel_del
int vnet_vxlan_gbp_tunnel_del(u32 sw_if_index)
Definition: vxlan_gbp.c:666
format_vxlan_gbp_tunnel_mode
u8 * format_vxlan_gbp_tunnel_mode(u8 *s, va_list *args)
Definition: vxlan_gbp.c:38
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_gbp_tunnel_t::vni
u32 vni
Definition: vxlan_gbp.h:83
punt_hdl
static vlib_punt_hdl_t punt_hdl
Definition: vxlan_gbp.c:33
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
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
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
vxlan_gbp_main_t::vnet_main
vnet_main_t * vnet_main
Definition: vxlan_gbp.h:190
unformat_input_t
struct _unformat_input_t unformat_input_t
vxlan_gbp_tunnel_mode_t
enum vxlan_gbp_tunnel_mode_t_ vxlan_gbp_tunnel_mode_t
VXLAN_GBP_TUNNEL_MODE_L3
@ VXLAN_GBP_TUNNEL_MODE_L3
Definition: vxlan_gbp.h:66
udp_header_t
Definition: udp_packet.h:45
ip4_header_t
Definition: ip4_packet.h:87
h
h
Definition: flowhash_template.h:372
error
Definition: cJSON.c:88
vxlan_gbp_tunnel_t::mcast_sw_if_index
u32 mcast_sw_if_index
Definition: vxlan_gbp.h:90
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
vnet_sw_interface_t::flags
vnet_sw_interface_flags_t flags
Definition: interface.h:872
VNET_FLOOD_CLASS_TUNNEL_NORMAL
@ VNET_FLOOD_CLASS_TUNNEL_NORMAL
Definition: interface.h:821
vxlan_gbp_tunnel_add_del_command_fn
static clib_error_t * vxlan_gbp_tunnel_add_del_command_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: vxlan_gbp.c:728
unformat
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:978
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
ti
u32 ti
Definition: interface_output.c:405
pool_foreach
#define pool_foreach(VAR, POOL)
Iterate through pool.
Definition: pool.h:534
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
vxlan_gbp_tunnel_t::encap_fib_index
u32 encap_fib_index
Definition: vxlan_gbp.h:93
mcast_shared_get
static mcast_shared_t mcast_shared_get(ip46_address_t *ip)
Definition: geneve.c:329
len
u8 len
Definition: ip_types.api:103
format_vxlan_gbp_name
static u8 * format_vxlan_gbp_name(u8 *s, va_list *args)
Definition: vxlan_gbp.c:77
vxlan_gbp_tunnel_t::mode
vxlan_gbp_tunnel_mode_t mode
Tunnel mode.
Definition: vxlan_gbp.h:106
vxlan_gbp_init
clib_error_t * vxlan_gbp_init(vlib_main_t *vm)
Definition: vxlan_gbp.c:1144
fib_forward_chain_type_t
enum fib_forward_chain_type_t_ fib_forward_chain_type_t
FIB output chain type.
vxlan_gbp_tunnel_t::dev_instance
u32 dev_instance
Definition: vxlan_gbp.h:128
set_ip6_vxlan_gbp_bypass
static clib_error_t * set_ip6_vxlan_gbp_bypass(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: vxlan_gbp.c:1084
foreach_copy_field
#define foreach_copy_field
Definition: vxlan_gbp.c:216
vxlan_gbp_main_t::vtep6
uword * vtep6
Definition: vxlan_gbp.h:177
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
vxlan6_gbp_encap_node
vlib_node_registration_t vxlan6_gbp_encap_node
(constructor) VLIB_REGISTER_NODE (vxlan6_gbp_encap_node)
Definition: encap.c:580
PREDICT_FALSE
#define PREDICT_FALSE(x)
Definition: clib.h:124
unformat_check_input
static uword unformat_check_input(unformat_input_t *i)
Definition: format.h:163
unformat_vlib_node
unformat_function_t unformat_vlib_node
Definition: node_funcs.h:1241
vxlan_gbp_tunnel_t::dst
ip46_address_t dst
Definition: vxlan_gbp.h:87
vxlan_gbp_tunnel_last_lock_gone
static void vxlan_gbp_tunnel_last_lock_gone(fib_node_t *node)
Function definition to inform the FIB node that its last lock has gone.
Definition: vxlan_gbp.c:196
vxlan_gbp_unregister_udp_ports
void vxlan_gbp_unregister_udp_ports(void)
Definition: vxlan_gbp.c:367
vtep_addr_unref
static uword vtep_addr_unref(ip46_address_t *ip)
Definition: vxlan_gbp.c:290
vxlan_gbp_main_t::vxlan6_gbp_tunnel_by_key
clib_bihash_24_8_t vxlan6_gbp_tunnel_by_key
Definition: vxlan_gbp.h:172
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
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
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
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
vxlan4_gbp_input_node
vlib_node_registration_t vxlan4_gbp_input_node
(constructor) VLIB_REGISTER_NODE (vxlan4_gbp_input_node)
Definition: decap.c:541
udp_unregister_dst_port
void udp_unregister_dst_port(vlib_main_t *vm, udp_dst_port_t dst_port, u8 is_ip4)
Definition: udp_local.c:506
hash_set_mem_alloc
static void hash_set_mem_alloc(uword **h, const void *key, uword v)
Definition: hash.h:279
format_unformat_error
u8 * format_unformat_error(u8 *s, va_list *va)
Definition: unformat.c:91
MFIB_SOURCE_VXLAN_GBP
@ MFIB_SOURCE_VXLAN_GBP
Definition: mfib_types.h:174
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
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.
format_vxlan_gbp_tunnel
u8 * format_vxlan_gbp_tunnel(u8 *s, va_list *args)
Definition: vxlan_gbp.c:55
ALWAYS_ASSERT
#define ALWAYS_ASSERT(truth)
Definition: error_bootstrap.h:89
FIB_PROTOCOL_IP4
@ FIB_PROTOCOL_IP4
Definition: fib_types.h:36
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
VXLAN_GBP_HASH_NUM_BUCKETS
#define VXLAN_GBP_HASH_NUM_BUCKETS
Definition: vxlan_gbp.c:1140
mfib_table.h
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
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
vxlan_gbp_tunnel_t::node
fib_node_t node
Linkage into the FIB object graph.
Definition: vxlan_gbp.h:111
vxlan_gbp_tunnel_t::sw_if_index
u32 sw_if_index
Definition: vxlan_gbp.h:96
vxlan_gbp_tunnel_fib_node_get
static fib_node_t * vxlan_gbp_tunnel_fib_node_get(fib_node_index_t index)
Function definition to get a FIB node from its index.
Definition: vxlan_gbp.c:182
show_vxlan_gbp_tunnel_command
static vlib_cli_command_t show_vxlan_gbp_tunnel_command
(constructor) VLIB_CLI_COMMAND (show_vxlan_gbp_tunnel_command)
Definition: vxlan_gbp.c:962
fib_entry_track.h
mcast_sw_if_index
vl_api_interface_index_t mcast_sw_if_index
Definition: vxlan_gbp.api:41
vxlan_gbp_set_header
static void vxlan_gbp_set_header(vxlan_gbp_header_t *h, u32 vni)
Definition: vxlan_gbp_packet.h:155
DPO_ADJACENCY_MCAST
@ DPO_ADJACENCY_MCAST
Definition: dpo.h:110
vnet_vxlan_gbp_tunnel_add_del_args_t
Definition: vxlan_gbp.h:212
create_vxlan_gbp_tunnel_command
static vlib_cli_command_t create_vxlan_gbp_tunnel_command
(constructor) VLIB_CLI_COMMAND (create_vxlan_gbp_tunnel_command)
Definition: vxlan_gbp.c:900
vxlan_gbp_register_udp_ports
void vxlan_gbp_register_udp_ports(void)
Definition: vxlan_gbp.c:349
DPO_LOAD_BALANCE
@ DPO_LOAD_BALANCE
load-balancing over a choice of [un]equal cost paths
Definition: dpo.h:104
is_ip6
bool is_ip6
Definition: ip.api:43
vnet_hw_interface_t
Definition: interface.h:638
vnet_main_t
Definition: vnet.h:76
vxlan_gbp_tunnel_t
Definition: vxlan_gbp.h:71
vlib_punt_reason_alloc
int vlib_punt_reason_alloc(vlib_punt_hdl_t client, const char *reason_name, punt_interested_listener_t fn, void *data, vlib_punt_reason_t *reason, u32 flags, format_function_t *flags_format)
Allocate a new punt reason.
Definition: punt.c:425
index
u32 index
Definition: flow_types.api:221
set_interface_ip6_vxlan_gbp_bypass_command
static vlib_cli_command_t set_interface_ip6_vxlan_gbp_bypass_command
(constructor) VLIB_CLI_COMMAND (set_interface_ip6_vxlan_gbp_bypass_command)
Definition: vxlan_gbp.c:1133
dpo_copy
void dpo_copy(dpo_id_t *dst, const dpo_id_t *src)
atomic copy a data-plane object.
Definition: dpo.c:264
punt.h
Definitions for punt infrastructure.
vxlan_gbp_header_t
Definition: vxlan_gbp_packet.h:73
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
vxlan_gbp_main_t
Definition: vxlan_gbp.h:165
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
vxlan6_gbp_input_node
vlib_node_registration_t vxlan6_gbp_input_node
(constructor) VLIB_REGISTER_NODE (vxlan6_gbp_input_node)
Definition: decap.c:556
set_interface_ip_vxlan_gbp_bypass_command
static vlib_cli_command_t set_interface_ip_vxlan_gbp_bypass_command
(constructor) VLIB_CLI_COMMAND (set_interface_ip_vxlan_gbp_bypass_command)
Definition: vxlan_gbp.c:1076
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
vxlan_gbp_tunnel_t::next_dpo
dpo_id_t next_dpo
Definition: vxlan_gbp.h:77
VLIB_INIT_FUNCTION
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:172
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
vxlan_gbp_main_t::tunnel_index_by_sw_if_index
u32 * tunnel_index_by_sw_if_index
Definition: vxlan_gbp.h:183
FIB_NODE_TYPE_VXLAN_GBP_TUNNEL
@ FIB_NODE_TYPE_VXLAN_GBP_TUNNEL
Definition: fib_node.h:49
vxlan_gbp_main_t::vxlan4_gbp_tunnel_by_key
clib_bihash_16_8_t vxlan4_gbp_tunnel_by_key
Definition: vxlan_gbp.h:171
table_id
u32 table_id
Definition: wireguard.api:102
FIB_PROTOCOL_IP6
@ FIB_PROTOCOL_IP6
Definition: fib_types.h:37
dst
vl_api_ip4_address_t dst
Definition: pnat.api:41
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
load_balance_get
static load_balance_t * load_balance_get(index_t lbi)
Definition: load_balance.h:220
ip6_sw_interface_enable_disable
void ip6_sw_interface_enable_disable(u32 sw_if_index, u32 is_enable)
Definition: ip6_forward.c:239
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
vlib_punt_hdl_t
int vlib_punt_hdl_t
Typedef for a client handle.
Definition: punt.h:52
vnet_vxlan_gbp_tunnel_add_del
int vnet_vxlan_gbp_tunnel_add_del(vnet_vxlan_gbp_tunnel_add_del_args_t *a, u32 *sw_if_indexp)
Definition: vxlan_gbp.c:385
vxlan4_gbp_encap_node
vlib_node_registration_t vxlan4_gbp_encap_node
(constructor) VLIB_REGISTER_NODE (vxlan4_gbp_encap_node)
Definition: encap.c:566
get_decap_next_for_node
static uword get_decap_next_for_node(u32 node_index, u32 ipv4_set)
Definition: vxlan_gbp.c:696
ip6_header_t
Definition: ip6_packet.h:294
vxlan_gbp_main_t::vlib_main
vlib_main_t * vlib_main
Definition: vxlan_gbp.h:189
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
hash_unset
#define hash_unset(h, key)
Definition: hash.h:261
vxlan_gbp_main_t::punt_no_such_tunnel
vlib_punt_reason_t punt_no_such_tunnel[FIB_PROTOCOL_IP_MAX]
Punt reasons for no such tunnel.
Definition: vxlan_gbp.h:198
VXLAN_GBP_HASH_MEMORY_SIZE
#define VXLAN_GBP_HASH_MEMORY_SIZE
Definition: vxlan_gbp.c:1141
adj_index_t
u32 adj_index_t
An index for adjacencies.
Definition: adj_types.h:30
unformat_decap_next
static uword unformat_decap_next(unformat_input_t *input, va_list *args)
Definition: vxlan_gbp.c:707
clib_memset
clib_memset(h->entries, 0, sizeof(h->entries[0]) *entries)
vlib_main_t
Definition: main.h:102
VNET_SW_INTERFACE_FLAG_HIDDEN
@ VNET_SW_INTERFACE_FLAG_HIDDEN
Definition: interface.h:855
fib_node_init
void fib_node_init(fib_node_t *node, fib_node_type_t type)
Definition: fib_node.c:185
VLIB_INITS
#define VLIB_INITS(...)
Definition: init.h:352
format_vxlan_gbp_header_with_length
static u8 * format_vxlan_gbp_header_with_length(u8 *s, va_list *args)
Definition: vxlan_gbp.c:115
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
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
vtep_addr_ref
static uword vtep_addr_ref(ip46_address_t *ip)
Definition: vxlan_gbp.c:276
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
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
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_gbp_tunnel_t::user_instance
u32 user_instance
Definition: vxlan_gbp.h:129
fib_node_deinit
void fib_node_deinit(fib_node_t *node)
Definition: fib_node.c:197
load_balance_t_
The FIB DPO provieds;.
Definition: load_balance.h:106
VNET_HW_INTERFACE_CLASS
VNET_HW_INTERFACE_CLASS(vxlan_gbp_hw_class)
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_gbp_main_t::vtep4
uword * vtep4
Definition: vxlan_gbp.h:176
vxlan_gbp_tunnel_t::src
ip46_address_t src
Definition: vxlan_gbp.h:86
l2input_main_t::configs
l2_input_config_t * configs
Definition: l2_input.h:90
vlib_cli_command_t
Definition: cli.h:92
vlib_punt_client_register
vlib_punt_hdl_t vlib_punt_client_register(const char *who)
Register a new clinet.
Definition: punt.c:171
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
sw_if_index
vl_api_interface_index_t sw_if_index
Definition: wireguard.api:34
vxlan_gbp_main_t::instance_used
uword * instance_used
Definition: vxlan_gbp.h:193
vxlan_gbp_interface_admin_up_down
static clib_error_t * vxlan_gbp_interface_admin_up_down(vnet_main_t *vnm, u32 hw_if_index, u32 flags)
Definition: vxlan_gbp.c:95
dpo_reset
void dpo_reset(dpo_id_t *dpo)
reset a DPO ID The DPO will be unlocked.
Definition: dpo.c:234
vxlan_gbp_main_t::udp_ports_registered
u32 udp_ports_registered
Definition: vxlan_gbp.h:186
vxlan_gbp_main
vxlan_gbp_main_t vxlan_gbp_main
Definition: vxlan_gbp.c:35
fib_prefix_t_
Aggregate type for a prefix.
Definition: fib_types.h:202
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_gbp.c:305
FIB_ROUTE_PATH_LOCAL
@ FIB_ROUTE_PATH_LOCAL
A for-us/local path.
Definition: fib_types.h:344
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
vxlan_gbp_tunnel_restack_dpo
static void vxlan_gbp_tunnel_restack_dpo(vxlan_gbp_tunnel_t *t)
Definition: vxlan_gbp.c:131
vxlan_gbp.h
UNFORMAT_END_OF_INPUT
#define UNFORMAT_END_OF_INPUT
Definition: format.h:137
vxlan_gbp_main_t::mcast_shared
uword * mcast_shared
Definition: vxlan_gbp.h:180
flags
vl_api_wireguard_peer_flags_t flags
Definition: wireguard.api:105