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Vector Packet Processing
vxlan_gbp.c
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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/fib/fib_entry.h>
18 #include <vnet/fib/fib_table.h>
19 #include <vnet/mfib/mfib_table.h>
20 #include <vnet/adj/adj_mcast.h>
21 #include <vnet/adj/rewrite.h>
22 #include <vnet/interface.h>
23 #include <vlib/vlib.h>
24 
25 /**
26  * @file
27  * @brief VXLAN GBP.
28  *
29  * VXLAN GBP provides the features of vxlan and carry group policy id.
30  */
31 
32 
34 
35 u8 *
36 format_vxlan_gbp_tunnel_mode (u8 * s, va_list * args)
37 {
39 
40  switch (mode)
41  {
43  s = format (s, "L2");
44  break;
46  s = format (s, "L3");
47  break;
48  }
49  return (s);
50 }
51 
52 u8 *
53 format_vxlan_gbp_tunnel (u8 * s, va_list * args)
54 {
55  vxlan_gbp_tunnel_t *t = va_arg (*args, vxlan_gbp_tunnel_t *);
56 
57  s = format (s,
58  "[%d] instance %d src %U dst %U vni %d fib-idx %d"
59  " sw-if-idx %d mode %U ",
63  t->vni, t->encap_fib_index, t->sw_if_index,
65 
66  s = format (s, "encap-dpo-idx %d ", t->next_dpo.dpoi_index);
67 
69  s = format (s, "mcast-sw-if-idx %d ", t->mcast_sw_if_index);
70 
71  return s;
72 }
73 
74 static u8 *
75 format_vxlan_gbp_name (u8 * s, va_list * args)
76 {
77  u32 dev_instance = va_arg (*args, u32);
80 
81  if (dev_instance == ~0)
82  return format (s, "<cached-unused>");
83 
84  if (dev_instance >= vec_len (vxm->tunnels))
85  return format (s, "<improperly-referenced>");
86 
87  t = pool_elt_at_index (vxm->tunnels, dev_instance);
88 
89  return format (s, "vxlan_gbp_tunnel%d", t->user_instance);
90 }
91 
92 static clib_error_t *
94  u32 flags)
95 {
96  u32 hw_flags = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) ?
98  vnet_hw_interface_set_flags (vnm, hw_if_index, hw_flags);
99 
100  return /* no error */ 0;
101 }
102 
103 /* *INDENT-OFF* */
104 VNET_DEVICE_CLASS (vxlan_gbp_device_class, static) = {
105  .name = "VXLAN-GBP",
106  .format_device_name = format_vxlan_gbp_name,
107  .format_tx_trace = format_vxlan_gbp_encap_trace,
108  .admin_up_down_function = vxlan_gbp_interface_admin_up_down,
109 };
110 /* *INDENT-ON* */
111 
112 static u8 *
114 {
115  u32 dev_instance = va_arg (*args, u32);
116  s = format (s, "unimplemented dev %u", dev_instance);
117  return s;
118 }
119 
120 /* *INDENT-OFF* */
121 VNET_HW_INTERFACE_CLASS (vxlan_gbp_hw_class) = {
122  .name = "VXLAN-GBP",
123  .format_header = format_vxlan_gbp_header_with_length,
124  .build_rewrite = default_build_rewrite,
125 };
126 /* *INDENT-ON* */
127 
128 static void
130 {
131  u8 is_ip4 = ip46_address_is_ip4 (&t->dst);
132  dpo_id_t dpo = DPO_INVALID;
133  fib_forward_chain_type_t forw_type = is_ip4 ?
135 
136  fib_entry_contribute_forwarding (t->fib_entry_index, forw_type, &dpo);
137 
138  /* vxlan_gbp uses the payload hash as the udp source port
139  * hence the packet's hash is unknown
140  * skip single bucket load balance dpo's */
141  while (DPO_LOAD_BALANCE == dpo.dpoi_type)
142  {
144  if (lb->lb_n_buckets > 1)
145  break;
146 
147  dpo_copy (&dpo, load_balance_get_bucket_i (lb, 0));
148  }
149 
150  u32 encap_index = is_ip4 ?
152  dpo_stack_from_node (encap_index, &t->next_dpo, &dpo);
153  dpo_reset (&dpo);
154 }
155 
156 static vxlan_gbp_tunnel_t *
158 {
160  return ((vxlan_gbp_tunnel_t *) (((char *) node) -
162  node)));
163 }
164 
165 /**
166  * Function definition to backwalk a FIB node -
167  * Here we will restack the new dpo of VXLAN DIP to encap node.
168  */
171 {
174 }
175 
176 /**
177  * Function definition to get a FIB node from its index
178  */
179 static fib_node_t *
181 {
184 
185  t = pool_elt_at_index (vxm->tunnels, index);
186 
187  return (&t->node);
188 }
189 
190 /**
191  * Function definition to inform the FIB node that its last lock has gone.
192  */
193 static void
195 {
196  /*
197  * The VXLAN GBP tunnel is a root of the graph. As such
198  * it never has children and thus is never locked.
199  */
200  ASSERT (0);
201 }
202 
203 /*
204  * Virtual function table registered by VXLAN GBP tunnels
205  * for participation in the FIB object graph.
206  */
207 const static fib_node_vft_t vxlan_gbp_vft = {
209  .fnv_last_lock = vxlan_gbp_tunnel_last_lock_gone,
210  .fnv_back_walk = vxlan_gbp_tunnel_back_walk,
211 };
212 
213 
214 #define foreach_copy_field \
215 _(vni) \
216 _(mode) \
217 _(mcast_sw_if_index) \
218 _(encap_fib_index) \
219 _(src) \
220 _(dst)
221 
222 static void
224 {
225  union
226  {
227  ip4_vxlan_gbp_header_t h4;
228  ip6_vxlan_gbp_header_t h6;
229  } h;
230  int len = is_ip6 ? sizeof h.h6 : sizeof h.h4;
231 
232  udp_header_t *udp;
233  vxlan_gbp_header_t *vxlan_gbp;
234  /* Fixed portion of the (outer) ip header */
235 
236  clib_memset (&h, 0, sizeof (h));
237  if (!is_ip6)
238  {
239  ip4_header_t *ip = &h.h4.ip4;
240  udp = &h.h4.udp, vxlan_gbp = &h.h4.vxlan_gbp;
241  ip->ip_version_and_header_length = 0x45;
242  ip->ttl = 254;
243  ip->protocol = IP_PROTOCOL_UDP;
244 
245  ip->src_address = t->src.ip4;
246  ip->dst_address = t->dst.ip4;
247 
248  /* we fix up the ip4 header length and checksum after-the-fact */
249  ip->checksum = ip4_header_checksum (ip);
250  }
251  else
252  {
253  ip6_header_t *ip = &h.h6.ip6;
254  udp = &h.h6.udp, vxlan_gbp = &h.h6.vxlan_gbp;
256  clib_host_to_net_u32 (6 << 28);
257  ip->hop_limit = 255;
258  ip->protocol = IP_PROTOCOL_UDP;
259 
260  ip->src_address = t->src.ip6;
261  ip->dst_address = t->dst.ip6;
262  }
263 
264  /* UDP header, randomize src port on something, maybe? */
265  udp->src_port = clib_host_to_net_u16 (47789);
266  udp->dst_port = clib_host_to_net_u16 (UDP_DST_PORT_vxlan_gbp);
267 
268  /* VXLAN header */
269  vxlan_gbp_set_header (vxlan_gbp, t->vni);
270  vnet_rewrite_set_data (*t, &h, len);
271 }
272 
273 static uword
274 vtep_addr_ref (ip46_address_t * ip)
275 {
276  uword *vtep = ip46_address_is_ip4 (ip) ?
277  hash_get (vxlan_gbp_main.vtep4, ip->ip4.as_u32) :
278  hash_get_mem (vxlan_gbp_main.vtep6, &ip->ip6);
279  if (vtep)
280  return ++(*vtep);
281  ip46_address_is_ip4 (ip) ?
282  hash_set (vxlan_gbp_main.vtep4, ip->ip4.as_u32, 1) :
283  hash_set_mem_alloc (&vxlan_gbp_main.vtep6, &ip->ip6, 1);
284  return 1;
285 }
286 
287 static uword
288 vtep_addr_unref (ip46_address_t * ip)
289 {
290  uword *vtep = ip46_address_is_ip4 (ip) ?
291  hash_get (vxlan_gbp_main.vtep4, ip->ip4.as_u32) :
292  hash_get_mem (vxlan_gbp_main.vtep6, &ip->ip6);
293  ASSERT (vtep);
294  if (--(*vtep) != 0)
295  return *vtep;
296  ip46_address_is_ip4 (ip) ?
297  hash_unset (vxlan_gbp_main.vtep4, ip->ip4.as_u32) :
298  hash_unset_mem_free (&vxlan_gbp_main.vtep6, &ip->ip6);
299  return 0;
300 }
301 
302 /* *INDENT-OFF* */
303 typedef CLIB_PACKED(union
304 {
305  struct
306  {
307  fib_node_index_t mfib_entry_index;
308  adj_index_t mcast_adj_index;
309  };
310  u64 as_u64;
311 }) mcast_shared_t;
312 /* *INDENT-ON* */
313 
314 static inline mcast_shared_t
315 mcast_shared_get (ip46_address_t * ip)
316 {
318  uword *p = hash_get_mem (vxlan_gbp_main.mcast_shared, ip);
319  ASSERT (p);
320  mcast_shared_t ret = {.as_u64 = *p };
321  return ret;
322 }
323 
324 static inline void
325 mcast_shared_add (ip46_address_t * dst, fib_node_index_t mfei, adj_index_t ai)
326 {
327  mcast_shared_t new_ep = {
328  .mcast_adj_index = ai,
329  .mfib_entry_index = mfei,
330  };
331 
332  hash_set_mem_alloc (&vxlan_gbp_main.mcast_shared, dst, new_ep.as_u64);
333 }
334 
335 static inline void
336 mcast_shared_remove (ip46_address_t * dst)
337 {
338  mcast_shared_t ep = mcast_shared_get (dst);
339 
340  adj_unlock (ep.mcast_adj_index);
342 
343  hash_unset_mem_free (&vxlan_gbp_main.mcast_shared, dst);
344 }
345 
346 inline void
348 {
350 
351  if (vxm->udp_ports_registered == 0)
352  {
353  udp_register_dst_port (vxm->vlib_main, UDP_DST_PORT_vxlan_gbp,
354  vxlan4_gbp_input_node.index, /* is_ip4 */ 1);
355  udp_register_dst_port (vxm->vlib_main, UDP_DST_PORT_vxlan6_gbp,
356  vxlan6_gbp_input_node.index, /* is_ip4 */ 0);
357  }
358  /*
359  * Counts the number of vxlan_gbp tunnels
360  */
361  vxm->udp_ports_registered += 1;
362 }
363 
364 inline void
366 {
368 
369  ASSERT (vxm->udp_ports_registered != 0);
370 
371  if (vxm->udp_ports_registered == 1)
372  {
373  udp_unregister_dst_port (vxm->vlib_main, UDP_DST_PORT_vxlan_gbp,
374  /* is_ip4 */ 1);
375  udp_unregister_dst_port (vxm->vlib_main, UDP_DST_PORT_vxlan6_gbp,
376  /* is_ip4 */ 0);
377  }
378 
379  vxm->udp_ports_registered -= 1;
380 }
381 
384 {
386  vxlan_gbp_tunnel_t *t = 0;
387  vnet_main_t *vnm = vxm->vnet_main;
388  u64 *p;
389  u32 sw_if_index = ~0;
392  u32 is_ip6 = a->is_ip6;
393 
394  int not_found;
395  if (!is_ip6)
396  {
397  key4.key[0] = a->dst.ip4.as_u32;
398  key4.key[1] = (((u64) a->encap_fib_index) << 32)
399  | clib_host_to_net_u32 (a->vni << 8);
400  not_found =
401  clib_bihash_search_inline_16_8 (&vxm->vxlan4_gbp_tunnel_by_key,
402  &key4);
403  p = &key4.value;
404  }
405  else
406  {
407  key6.key[0] = a->dst.ip6.as_u64[0];
408  key6.key[1] = a->dst.ip6.as_u64[1];
409  key6.key[2] = (((u64) a->encap_fib_index) << 32)
410  | clib_host_to_net_u32 (a->vni << 8);
411  not_found =
412  clib_bihash_search_inline_24_8 (&vxm->vxlan6_gbp_tunnel_by_key,
413  &key6);
414  p = &key6.value;
415  }
416 
417  if (not_found)
418  p = 0;
419 
420  if (a->is_add)
421  {
422  l2input_main_t *l2im = &l2input_main;
423  u32 dev_instance; /* real dev instance tunnel index */
424  u32 user_instance; /* request and actual instance number */
425 
426  /* adding a tunnel: tunnel must not already exist */
427  if (p)
428  {
429  t = pool_elt_at_index (vxm->tunnels, *p);
430  *sw_if_indexp = t->sw_if_index;
431  return VNET_API_ERROR_TUNNEL_EXIST;
432  }
434  clib_memset (t, 0, sizeof (*t));
435  dev_instance = t - vxm->tunnels;
436 
437  /* copy from arg structure */
438 #define _(x) t->x = a->x;
440 #undef _
441 
442  vxlan_gbp_rewrite (t, is_ip6);
443  /*
444  * Reconcile the real dev_instance and a possible requested instance.
445  */
446  user_instance = a->instance;
447  if (user_instance == ~0)
448  user_instance = dev_instance;
449  if (hash_get (vxm->instance_used, user_instance))
450  {
451  pool_put (vxm->tunnels, t);
452  return VNET_API_ERROR_INSTANCE_IN_USE;
453  }
454  hash_set (vxm->instance_used, user_instance, 1);
455 
456  t->dev_instance = dev_instance; /* actual */
457  t->user_instance = user_instance; /* name */
458 
459  /* copy the key */
460  int add_failed;
461  if (is_ip6)
462  {
463  key6.value = (u64) dev_instance;
464  add_failed =
465  clib_bihash_add_del_24_8 (&vxm->vxlan6_gbp_tunnel_by_key, &key6,
466  1 /*add */ );
467  }
468  else
469  {
470  key4.value = (u64) dev_instance;
471  add_failed =
472  clib_bihash_add_del_16_8 (&vxm->vxlan4_gbp_tunnel_by_key, &key4,
473  1 /*add */ );
474  }
475 
476  if (add_failed)
477  {
478  pool_put (vxm->tunnels, t);
479  return VNET_API_ERROR_INVALID_REGISTRATION;
480  }
481 
483 
485  (vnm, vxlan_gbp_device_class.index, dev_instance,
486  vxlan_gbp_hw_class.index, dev_instance);
488 
489  /* Set vxlan_gbp tunnel output node */
490  u32 encap_index = !is_ip6 ?
492  vnet_set_interface_output_node (vnm, t->hw_if_index, encap_index);
493 
494  t->sw_if_index = sw_if_index = hi->sw_if_index;
495 
496  if (VXLAN_GBP_TUNNEL_MODE_L3 == t->mode)
497  {
500  }
501 
503  ~0);
504  vxm->tunnel_index_by_sw_if_index[sw_if_index] = dev_instance;
505 
506  /* setup l2 input config with l2 feature and bd 0 to drop packet */
507  vec_validate (l2im->configs, sw_if_index);
508  l2im->configs[sw_if_index].feature_bitmap = L2INPUT_FEAT_DROP;
509  l2im->configs[sw_if_index].bd_index = 0;
510 
511  vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
513  vnet_sw_interface_set_flags (vnm, sw_if_index,
515 
517  fib_prefix_t tun_dst_pfx;
519 
520  fib_prefix_from_ip46_addr (&t->dst, &tun_dst_pfx);
521  if (!ip46_address_is_multicast (&t->dst))
522  {
523  /* Unicast tunnel -
524  * source the FIB entry for the tunnel's destination
525  * and become a child thereof. The tunnel will then get poked
526  * when the forwarding for the entry updates, and the tunnel can
527  * re-stack accordingly
528  */
529  vtep_addr_ref (&t->src);
531  (t->encap_fib_index, &tun_dst_pfx, FIB_SOURCE_RR,
535  dev_instance);
537  }
538  else
539  {
540  /* Multicast tunnel -
541  * as the same mcast group can be used for multiple mcast tunnels
542  * with different VNIs, create the output fib adjacency only if
543  * it does not already exist
544  */
545  fib_protocol_t fp = fib_ip_proto (is_ip6);
546 
547  if (vtep_addr_ref (&t->dst) == 1)
548  {
549  fib_node_index_t mfei;
550  adj_index_t ai;
551  fib_route_path_t path = {
552  .frp_proto = fib_proto_to_dpo (fp),
553  .frp_addr = zero_addr,
554  .frp_sw_if_index = 0xffffffff,
555  .frp_fib_index = ~0,
556  .frp_weight = 0,
557  .frp_flags = FIB_ROUTE_PATH_LOCAL,
558  };
559  const mfib_prefix_t mpfx = {
560  .fp_proto = fp,
561  .fp_len = (is_ip6 ? 128 : 32),
562  .fp_grp_addr = tun_dst_pfx.fp_addr,
563  };
564 
565  /*
566  * Setup the (*,G) to receive traffic on the mcast group
567  * - the forwarding interface is for-us
568  * - the accepting interface is that from the API
569  */
571  &mpfx,
573  &path, MFIB_ITF_FLAG_FORWARD);
574 
578  &mpfx,
580  &path,
582 
583  /*
584  * Create the mcast adjacency to send traffic to the group
585  */
586  ai = adj_mcast_add_or_lock (fp,
587  fib_proto_to_link (fp),
588  a->mcast_sw_if_index);
589 
590  /*
591  * create a new end-point
592  */
593  mcast_shared_add (&t->dst, mfei, ai);
594  }
595 
596  dpo_id_t dpo = DPO_INVALID;
597  mcast_shared_t ep = mcast_shared_get (&t->dst);
598 
599  /* Stack shared mcast dst mac addr rewrite on encap */
601  fib_proto_to_dpo (fp), ep.mcast_adj_index);
602 
603  dpo_stack_from_node (encap_index, &t->next_dpo, &dpo);
604  dpo_reset (&dpo);
605  flood_class = VNET_FLOOD_CLASS_TUNNEL_MASTER;
606  }
607 
608  vnet_get_sw_interface (vnet_get_main (), sw_if_index)->flood_class =
609  flood_class;
610  }
611  else
612  {
613  /* deleting a tunnel: tunnel must exist */
614  if (!p)
615  return VNET_API_ERROR_NO_SUCH_ENTRY;
616 
617  u32 instance = p[0];
618  t = pool_elt_at_index (vxm->tunnels, instance);
619 
620  sw_if_index = t->sw_if_index;
621  vnet_sw_interface_set_flags (vnm, sw_if_index, 0 /* down */ );
622 
623  if (VXLAN_GBP_TUNNEL_MODE_L3 == t->mode)
624  {
627  }
628 
630 
631  if (!is_ip6)
632  clib_bihash_add_del_16_8 (&vxm->vxlan4_gbp_tunnel_by_key, &key4,
633  0 /*del */ );
634  else
635  clib_bihash_add_del_24_8 (&vxm->vxlan6_gbp_tunnel_by_key, &key6,
636  0 /*del */ );
637 
638  if (!ip46_address_is_multicast (&t->dst))
639  {
640  vtep_addr_unref (&t->src);
643  }
644  else if (vtep_addr_unref (&t->dst) == 0)
645  {
646  mcast_shared_remove (&t->dst);
647  }
648 
652 
653  fib_node_deinit (&t->node);
654  pool_put (vxm->tunnels, t);
655  }
656 
657  if (sw_if_indexp)
658  *sw_if_indexp = sw_if_index;
659 
660  return 0;
661 }
662 
663 int
665 {
667  vxlan_gbp_tunnel_t *t = 0;
668  u32 ti;
669 
670  if (sw_if_index >= vec_len (vxm->tunnel_index_by_sw_if_index))
671  return VNET_API_ERROR_NO_SUCH_ENTRY;
672 
674  if (~0 != ti)
675  {
676  t = pool_elt_at_index (vxm->tunnels, ti);
677 
679  .is_add = 0,
680  .is_ip6 = !ip46_address_is_ip4 (&t->src),
681  .vni = t->vni,
682  .src = t->src,
683  .dst = t->dst,
684  .instance = ~0,
685  };
686 
687  return (vnet_vxlan_gbp_tunnel_add_del (&args, NULL));
688  }
689 
690  return VNET_API_ERROR_NO_SUCH_ENTRY;
691 }
692 
693 static uword
694 get_decap_next_for_node (u32 node_index, u32 ipv4_set)
695 {
697  vlib_main_t *vm = vxm->vlib_main;
698  uword input_node = (ipv4_set) ? vxlan4_gbp_input_node.index :
699  vxlan6_gbp_input_node.index;
700 
701  return vlib_node_add_next (vm, input_node, node_index);
702 }
703 
704 static uword
705 unformat_decap_next (unformat_input_t * input, va_list * args)
706 {
707  u32 *result = va_arg (*args, u32 *);
708  u32 ipv4_set = va_arg (*args, int);
710  vlib_main_t *vm = vxm->vlib_main;
711  u32 node_index;
712  u32 tmp;
713 
714  if (unformat (input, "l2"))
715  *result = VXLAN_GBP_INPUT_NEXT_L2_INPUT;
716  else if (unformat (input, "node %U", unformat_vlib_node, vm, &node_index))
717  *result = get_decap_next_for_node (node_index, ipv4_set);
718  else if (unformat (input, "%d", &tmp))
719  *result = tmp;
720  else
721  return 0;
722  return 1;
723 }
724 
725 static clib_error_t *
727  unformat_input_t * input,
728  vlib_cli_command_t * cmd)
729 {
730  unformat_input_t _line_input, *line_input = &_line_input;
731  ip46_address_t src = ip46_address_initializer, dst =
734  u8 is_add = 1;
735  u8 src_set = 0;
736  u8 dst_set = 0;
737  u8 grp_set = 0;
738  u8 ipv4_set = 0;
739  u8 ipv6_set = 0;
740  u32 instance = ~0;
741  u32 encap_fib_index = 0;
742  u32 mcast_sw_if_index = ~0;
743  u32 decap_next_index = VXLAN_GBP_INPUT_NEXT_L2_INPUT;
744  u32 vni = 0;
745  u32 table_id;
746  clib_error_t *parse_error = NULL;
747 
748  /* Get a line of input. */
749  if (!unformat_user (input, unformat_line_input, line_input))
750  return 0;
751 
752  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
753  {
754  if (unformat (line_input, "del"))
755  {
756  is_add = 0;
757  }
758  else if (unformat (line_input, "instance %d", &instance))
759  ;
760  else if (unformat (line_input, "src %U",
762  {
763  src_set = 1;
764  ip46_address_is_ip4 (&src) ? (ipv4_set = 1) : (ipv6_set = 1);
765  }
766  else if (unformat (line_input, "dst %U",
768  {
769  dst_set = 1;
770  ip46_address_is_ip4 (&dst) ? (ipv4_set = 1) : (ipv6_set = 1);
771  }
772  else if (unformat (line_input, "group %U %U",
775  vnet_get_main (), &mcast_sw_if_index))
776  {
777  grp_set = dst_set = 1;
778  ip46_address_is_ip4 (&dst) ? (ipv4_set = 1) : (ipv6_set = 1);
779  }
780  else if (unformat (line_input, "encap-vrf-id %d", &table_id))
781  {
782  encap_fib_index =
783  fib_table_find (fib_ip_proto (ipv6_set), table_id);
784  }
785  else if (unformat (line_input, "decap-next %U", unformat_decap_next,
786  &decap_next_index, ipv4_set))
787  ;
788  else if (unformat (line_input, "vni %d", &vni))
789  ;
790  else
791  {
792  parse_error = clib_error_return (0, "parse error: '%U'",
793  format_unformat_error, line_input);
794  break;
795  }
796  }
797 
798  unformat_free (line_input);
799 
800  if (parse_error)
801  return parse_error;
802 
803  if (encap_fib_index == ~0)
804  return clib_error_return (0, "nonexistent encap-vrf-id %d", table_id);
805 
806  if (src_set == 0)
807  return clib_error_return (0, "tunnel src address not specified");
808 
809  if (dst_set == 0)
810  return clib_error_return (0, "tunnel dst address not specified");
811 
812  if (grp_set && !ip46_address_is_multicast (&dst))
813  return clib_error_return (0, "tunnel group address not multicast");
814 
815  if (grp_set == 0 && ip46_address_is_multicast (&dst))
816  return clib_error_return (0, "dst address must be unicast");
817 
818  if (grp_set && mcast_sw_if_index == ~0)
819  return clib_error_return (0, "tunnel nonexistent multicast device");
820 
821  if (ipv4_set && ipv6_set)
822  return clib_error_return (0, "both IPv4 and IPv6 addresses specified");
823 
824  if (ip46_address_cmp (&src, &dst) == 0)
825  return clib_error_return (0, "src and dst addresses are identical");
826 
827  if (decap_next_index == ~0)
828  return clib_error_return (0, "next node not found");
829 
830  if (vni == 0)
831  return clib_error_return (0, "vni not specified");
832 
833  if (vni >> 24)
834  return clib_error_return (0, "vni %d out of range", vni);
835 
837  .is_add = is_add,
838  .is_ip6 = ipv6_set,
839  .instance = instance,
840 #define _(x) .x = x,
842 #undef _
843  };
844 
845  u32 tunnel_sw_if_index;
846  int rv = vnet_vxlan_gbp_tunnel_add_del (&a, &tunnel_sw_if_index);
847 
848  switch (rv)
849  {
850  case 0:
851  if (is_add)
853  vnet_get_main (), tunnel_sw_if_index);
854  break;
855 
856  case VNET_API_ERROR_TUNNEL_EXIST:
857  return clib_error_return (0, "tunnel already exists...");
858 
859  case VNET_API_ERROR_NO_SUCH_ENTRY:
860  return clib_error_return (0, "tunnel does not exist...");
861 
862  case VNET_API_ERROR_INSTANCE_IN_USE:
863  return clib_error_return (0, "Instance is in use");
864 
865  default:
866  return clib_error_return
867  (0, "vnet_vxlan_gbp_tunnel_add_del returned %d", rv);
868  }
869 
870  return 0;
871 }
872 
873 /*?
874  * Add or delete a VXLAN Tunnel.
875  *
876  * VXLAN provides the features needed to allow L2 bridge domains (BDs)
877  * to span multiple servers. This is done by building an L2 overlay on
878  * top of an L3 network underlay using VXLAN tunnels.
879  *
880  * This makes it possible for servers to be co-located in the same data
881  * center or be separated geographically as long as they are reachable
882  * through the underlay L3 network.
883  *
884  * You can refer to this kind of L2 overlay bridge domain as a VXLAN
885  * (Virtual eXtensible VLAN) segment.
886  *
887  * @cliexpar
888  * Example of how to create a VXLAN Tunnel:
889  * @cliexcmd{create vxlan_gbp tunnel src 10.0.3.1 dst 10.0.3.3 vni 13 encap-vrf-id 7}
890  * Example of how to create a VXLAN Tunnel with a known name, vxlan_gbp_tunnel42:
891  * @cliexcmd{create vxlan_gbp tunnel src 10.0.3.1 dst 10.0.3.3 instance 42}
892  * Example of how to create a multicast VXLAN Tunnel with a known name, vxlan_gbp_tunnel23:
893  * @cliexcmd{create vxlan_gbp tunnel src 10.0.3.1 group 239.1.1.1 GigabitEthernet0/8/0 instance 23}
894  * Example of how to delete a VXLAN Tunnel:
895  * @cliexcmd{create vxlan_gbp tunnel src 10.0.3.1 dst 10.0.3.3 vni 13 del}
896  ?*/
897 /* *INDENT-OFF* */
898 VLIB_CLI_COMMAND (create_vxlan_gbp_tunnel_command, static) = {
899  .path = "create vxlan-gbp tunnel",
900  .short_help =
901  "create vxlan-gbp tunnel src <local-vtep-addr>"
902  " {dst <remote-vtep-addr>|group <mcast-vtep-addr> <intf-name>} vni <nn>"
903  " [instance <id>]"
904  " [encap-vrf-id <nn>] [decap-next [l2|node <name>]] [del]",
906 };
907 /* *INDENT-ON* */
908 
909 static clib_error_t *
911  unformat_input_t * input,
912  vlib_cli_command_t * cmd)
913 {
916  int raw = 0;
917 
919  {
920  if (unformat (input, "raw"))
921  raw = 1;
922  else
923  return clib_error_return (0, "parse error: '%U'",
924  format_unformat_error, input);
925  }
926 
927  if (pool_elts (vxm->tunnels) == 0)
928  vlib_cli_output (vm, "No vxlan-gbp tunnels configured...");
929 
930 /* *INDENT-OFF* */
931  pool_foreach (t, vxm->tunnels,
932  ({
933  vlib_cli_output (vm, "%U", format_vxlan_gbp_tunnel, t);
934  }));
935 /* *INDENT-ON* */
936 
937  if (raw)
938  {
939  vlib_cli_output (vm, "Raw IPv4 Hash Table:\n%U\n",
940  format_bihash_16_8, &vxm->vxlan4_gbp_tunnel_by_key,
941  1 /* verbose */ );
942  vlib_cli_output (vm, "Raw IPv6 Hash Table:\n%U\n",
943  format_bihash_24_8, &vxm->vxlan6_gbp_tunnel_by_key,
944  1 /* verbose */ );
945  }
946 
947  return 0;
948 }
949 
950 /*?
951  * Display all the VXLAN Tunnel entries.
952  *
953  * @cliexpar
954  * Example of how to display the VXLAN Tunnel entries:
955  * @cliexstart{show vxlan_gbp tunnel}
956  * [0] src 10.0.3.1 dst 10.0.3.3 vni 13 encap_fib_index 0 sw_if_index 5 decap_next l2
957  * @cliexend
958  ?*/
959 /* *INDENT-OFF* */
960 VLIB_CLI_COMMAND (show_vxlan_gbp_tunnel_command, static) = {
961  .path = "show vxlan-gbp tunnel",
962  .short_help = "show vxlan-gbp tunnel [raw]",
964 };
965 /* *INDENT-ON* */
966 
967 
968 void
970 {
971  if (is_ip6)
972  vnet_feature_enable_disable ("ip6-unicast", "ip6-vxlan-gbp-bypass",
973  sw_if_index, is_enable, 0, 0);
974  else
975  vnet_feature_enable_disable ("ip4-unicast", "ip4-vxlan-gbp-bypass",
976  sw_if_index, is_enable, 0, 0);
977 }
978 
979 
980 static clib_error_t *
982  unformat_input_t * input, vlib_cli_command_t * cmd)
983 {
984  unformat_input_t _line_input, *line_input = &_line_input;
985  vnet_main_t *vnm = vnet_get_main ();
986  clib_error_t *error = 0;
987  u32 sw_if_index, is_enable;
988 
989  sw_if_index = ~0;
990  is_enable = 1;
991 
992  if (!unformat_user (input, unformat_line_input, line_input))
993  return 0;
994 
995  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
996  {
997  if (unformat_user
998  (line_input, unformat_vnet_sw_interface, vnm, &sw_if_index))
999  ;
1000  else if (unformat (line_input, "del"))
1001  is_enable = 0;
1002  else
1003  {
1004  error = unformat_parse_error (line_input);
1005  goto done;
1006  }
1007  }
1008 
1009  if (~0 == sw_if_index)
1010  {
1011  error = clib_error_return (0, "unknown interface `%U'",
1012  format_unformat_error, line_input);
1013  goto done;
1014  }
1015 
1016  vnet_int_vxlan_gbp_bypass_mode (sw_if_index, is_ip6, is_enable);
1017 
1018 done:
1019  unformat_free (line_input);
1020 
1021  return error;
1022 }
1023 
1024 static clib_error_t *
1026  unformat_input_t * input, vlib_cli_command_t * cmd)
1027 {
1028  return set_ip_vxlan_gbp_bypass (0, input, cmd);
1029 }
1030 
1031 /*?
1032  * This command adds the 'ip4-vxlan-gbp-bypass' graph node for a given interface.
1033  * By adding the IPv4 vxlan_gbp-bypass graph node to an interface, the node checks
1034  * for and validate input vxlan_gbp packet and bypass ip4-lookup, ip4-local,
1035  * ip4-udp-lookup nodes to speedup vxlan_gbp packet forwarding. This node will
1036  * cause extra overhead to for non-vxlan_gbp packets which is kept at a minimum.
1037  *
1038  * @cliexpar
1039  * @parblock
1040  * Example of graph node before ip4-vxlan_gbp-bypass is enabled:
1041  * @cliexstart{show vlib graph ip4-vxlan_gbp-bypass}
1042  * Name Next Previous
1043  * ip4-vxlan-gbp-bypass error-drop [0]
1044  * vxlan4-gbp-input [1]
1045  * ip4-lookup [2]
1046  * @cliexend
1047  *
1048  * Example of how to enable ip4-vxlan-gbp-bypass on an interface:
1049  * @cliexcmd{set interface ip vxlan-gbp-bypass GigabitEthernet2/0/0}
1050  *
1051  * Example of graph node after ip4-vxlan-gbp-bypass is enabled:
1052  * @cliexstart{show vlib graph ip4-vxlan-gbp-bypass}
1053  * Name Next Previous
1054  * ip4-vxlan-gbp-bypass error-drop [0] ip4-input
1055  * vxlan4-gbp-input [1] ip4-input-no-checksum
1056  * ip4-lookup [2]
1057  * @cliexend
1058  *
1059  * Example of how to display the feature enabled on an interface:
1060  * @cliexstart{show ip interface features GigabitEthernet2/0/0}
1061  * IP feature paths configured on GigabitEthernet2/0/0...
1062  * ...
1063  * ipv4 unicast:
1064  * ip4-vxlan-gbp-bypass
1065  * ip4-lookup
1066  * ...
1067  * @cliexend
1068  *
1069  * Example of how to disable ip4-vxlan-gbp-bypass on an interface:
1070  * @cliexcmd{set interface ip vxlan-gbp-bypass GigabitEthernet2/0/0 del}
1071  * @endparblock
1072 ?*/
1073 /* *INDENT-OFF* */
1074 VLIB_CLI_COMMAND (set_interface_ip_vxlan_gbp_bypass_command, static) = {
1075  .path = "set interface ip vxlan-gbp-bypass",
1076  .function = set_ip4_vxlan_gbp_bypass,
1077  .short_help = "set interface ip vxlan-gbp-bypass <interface> [del]",
1078 };
1079 /* *INDENT-ON* */
1080 
1081 static clib_error_t *
1083  unformat_input_t * input, vlib_cli_command_t * cmd)
1084 {
1085  return set_ip_vxlan_gbp_bypass (1, input, cmd);
1086 }
1087 
1088 /*?
1089  * This command adds the 'ip6-vxlan-gbp-bypass' graph node for a given interface.
1090  * By adding the IPv6 vxlan-gbp-bypass graph node to an interface, the node checks
1091  * for and validate input vxlan_gbp packet and bypass ip6-lookup, ip6-local,
1092  * ip6-udp-lookup nodes to speedup vxlan_gbp packet forwarding. This node will
1093  * cause extra overhead to for non-vxlan packets which is kept at a minimum.
1094  *
1095  * @cliexpar
1096  * @parblock
1097  * Example of graph node before ip6-vxlan-gbp-bypass is enabled:
1098  * @cliexstart{show vlib graph ip6-vxlan-gbp-bypass}
1099  * Name Next Previous
1100  * ip6-vxlan-gbp-bypass error-drop [0]
1101  * vxlan6-gbp-input [1]
1102  * ip6-lookup [2]
1103  * @cliexend
1104  *
1105  * Example of how to enable ip6-vxlan-gbp-bypass on an interface:
1106  * @cliexcmd{set interface ip6 vxlan-gbp-bypass GigabitEthernet2/0/0}
1107  *
1108  * Example of graph node after ip6-vxlan-gbp-bypass is enabled:
1109  * @cliexstart{show vlib graph ip6-vxlan-gbp-bypass}
1110  * Name Next Previous
1111  * ip6-vxlan-gbp-bypass error-drop [0] ip6-input
1112  * vxlan6-gbp-input [1] ip4-input-no-checksum
1113  * ip6-lookup [2]
1114  * @cliexend
1115  *
1116  * Example of how to display the feature enabled on an interface:
1117  * @cliexstart{show ip interface features GigabitEthernet2/0/0}
1118  * IP feature paths configured on GigabitEthernet2/0/0...
1119  * ...
1120  * ipv6 unicast:
1121  * ip6-vxlan-gbp-bypass
1122  * ip6-lookup
1123  * ...
1124  * @cliexend
1125  *
1126  * Example of how to disable ip6-vxlan-gbp-bypass on an interface:
1127  * @cliexcmd{set interface ip6 vxlan-gbp-bypass GigabitEthernet2/0/0 del}
1128  * @endparblock
1129 ?*/
1130 /* *INDENT-OFF* */
1131 VLIB_CLI_COMMAND (set_interface_ip6_vxlan_gbp_bypass_command, static) = {
1132  .path = "set interface ip6 vxlan-gbp-bypass",
1133  .function = set_ip6_vxlan_gbp_bypass,
1134  .short_help = "set interface ip vxlan-gbp-bypass <interface> [del]",
1135 };
1136 /* *INDENT-ON* */
1137 
1138 #define VXLAN_GBP_HASH_NUM_BUCKETS (2 * 1024)
1139 #define VXLAN_GBP_HASH_MEMORY_SIZE (1 << 20)
1140 
1141 clib_error_t *
1143 {
1145 
1146  vxm->vnet_main = vnet_get_main ();
1147  vxm->vlib_main = vm;
1148 
1149  /* initialize the ip6 hash */
1150  clib_bihash_init_16_8 (&vxm->vxlan4_gbp_tunnel_by_key, "vxlan4-gbp",
1153  clib_bihash_init_24_8 (&vxm->vxlan6_gbp_tunnel_by_key, "vxlan6-gbp",
1156  vxm->vtep6 = hash_create_mem (0, sizeof (ip6_address_t), sizeof (uword));
1157  vxm->mcast_shared = hash_create_mem (0,
1158  sizeof (ip46_address_t),
1159  sizeof (mcast_shared_t));
1160 
1162 
1163  return 0;
1164 }
1165 
1167 
1168 /*
1169  * fd.io coding-style-patch-verification: ON
1170  *
1171  * Local Variables:
1172  * eval: (c-set-style "gnu")
1173  * End:
1174  */
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment) ...
Definition: vec.h:439
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 ...
u16 lb_n_buckets
number of buckets in the load-balance.
Definition: load_balance.h:116
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:530
vmrglw vmrglh hi
static void mcast_shared_add(ip46_address_t *dst, fib_node_index_t mfei, adj_index_t ai)
Definition: vxlan_gbp.c:325
Recursive resolution source.
Definition: fib_entry.h:125
#define VXLAN_GBP_HASH_MEMORY_SIZE
Definition: vxlan_gbp.c:1139
Contribute an object that is to be used to forward IP6 packets.
Definition: fib_types.h:113
#define hash_set(h, key, value)
Definition: hash.h:255
l2_input_config_t * configs
Definition: l2_input.h:61
u32 flags
Definition: vhost_user.h:115
vl_api_address_t src
Definition: vxlan_gbp.api:32
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:910
static void vxlan_gbp_set_header(vxlan_gbp_header_t *h, u32 vni)
clib_bihash_24_8_t vxlan6_gbp_tunnel_by_key
Definition: vxlan_gbp.h:170
#define hash_unset(h, key)
Definition: hash.h:261
VNET_HW_INTERFACE_CLASS(vxlan_gbp_hw_class)
VNET_DEVICE_CLASS(vxlan_gbp_device_class, static)
A representation of a path as described by a route producer.
Definition: fib_types.h:470
ip4_address_t src_address
Definition: ip4_packet.h:170
vnet_main_t * vnet_get_main(void)
Definition: misc.c:47
void fib_node_init(fib_node_t *node, fib_node_type_t type)
Definition: fib_node.c:185
u64 as_u64
Definition: bihash_doc.h:63
u32 fib_entry_child_add(fib_node_index_t fib_entry_index, fib_node_type_t child_type, fib_node_index_t child_index)
Definition: fib_entry.c:555
clib_error_t * vxlan_gbp_init(vlib_main_t *vm)
Definition: vxlan_gbp.c:1142
unsigned long u64
Definition: types.h:89
#define NULL
Definition: clib.h:58
clib_memset(h->entries, 0, sizeof(h->entries[0]) *entries)
enum fib_node_back_walk_rc_t_ fib_node_back_walk_rc_t
Return code from a back walk function.
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:447
int vnet_vxlan_gbp_tunnel_add_del(vnet_vxlan_gbp_tunnel_add_del_args_t *a, u32 *sw_if_indexp)
Definition: vxlan_gbp.c:383
static void mcast_shared_remove(ip46_address_t *dst)
Definition: vxlan_gbp.c:336
#define vnet_rewrite_set_data(rw, data, data_bytes)
Definition: rewrite.h:138
u32 mcast_sw_if_index
Definition: vxlan_gbp.api:34
vlib_node_registration_t vxlan4_gbp_encap_node
(constructor) VLIB_REGISTER_NODE (vxlan4_gbp_encap_node)
Definition: encap.c:511
void vxlan_gbp_unregister_udp_ports(void)
Definition: vxlan_gbp.c:365
static vnet_hw_interface_t * vnet_get_hw_interface(vnet_main_t *vnm, u32 hw_if_index)
static uword unformat_decap_next(unformat_input_t *input, va_list *args)
Definition: vxlan_gbp.c:705
void fib_entry_child_remove(fib_node_index_t fib_entry_index, u32 sibling_index)
Definition: fib_entry.c:566
void dpo_copy(dpo_id_t *dst, const dpo_id_t *src)
atomic copy a data-plane object.
Definition: dpo.c:261
enum vxlan_gbp_tunnel_mode_t_ vxlan_gbp_tunnel_mode_t
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:194
uword unformat_user(unformat_input_t *input, unformat_function_t *func,...)
Definition: unformat.c:983
format_function_t format_ip46_address
Definition: format.h:61
Contribute an object that is to be used to forward IP4 packets.
Definition: fib_types.h:109
vxlan_gbp_main_t vxlan_gbp_main
Definition: vxlan_gbp.c:33
#define STRUCT_OFFSET_OF(t, f)
Definition: clib.h:65
void fib_node_deinit(fib_node_t *node)
Definition: fib_node.c:197
static vnet_sw_interface_t * vnet_get_sw_interface(vnet_main_t *vnm, u32 sw_if_index)
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:419
dpo_proto_t frp_proto
The protocol of the address below.
Definition: fib_types.h:475
unformat_function_t unformat_vnet_sw_interface
static u8 * format_vxlan_gbp_name(u8 *s, va_list *args)
Definition: vxlan_gbp.c:75
vlib_node_registration_t vxlan6_gbp_encap_node
(constructor) VLIB_REGISTER_NODE (vxlan6_gbp_encap_node)
Definition: encap.c:528
ip6_address_t src_address
Definition: ip6_packet.h:378
#define ip46_address_cmp(ip46_1, ip46_2)
Definition: ip6_packet.h:92
format_function_t format_vnet_sw_if_index_name
static uword vlib_node_add_next(vlib_main_t *vm, uword node, uword next_node)
Definition: node_funcs.h:1092
unsigned char u8
Definition: types.h:56
enum fib_protocol_t_ fib_protocol_t
Protocol Type.
static uword ip46_address_is_multicast(const ip46_address_t *a)
Definition: ip6_packet.h:178
static uword vtep_addr_ref(ip46_address_t *ip)
Definition: vxlan_gbp.c:274
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
static u8 * format_vxlan_gbp_header_with_length(u8 *s, va_list *args)
Definition: vxlan_gbp.c:113
vnet_flood_class_t flood_class
Definition: interface.h:731
#define pool_foreach(VAR, POOL, BODY)
Iterate through pool.
Definition: pool.h:490
u32 frp_sw_if_index
The interface.
Definition: fib_types.h:505
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:163
u32 sw_if_index
Definition: vxlan_gbp.api:37
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:464
static void vxlan_gbp_tunnel_restack_dpo(vxlan_gbp_tunnel_t *t)
Definition: vxlan_gbp.c:129
ip4_address_t dst_address
Definition: ip4_packet.h:170
Aggregrate type for a prefix.
Definition: fib_types.h:203
#define clib_error_return(e, args...)
Definition: error.h:99
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, mfib_itf_flags_t itf_flags)
Add n paths to an entry (aka route) in the FIB.
Definition: mfib_table.c:290
void adj_unlock(adj_index_t adj_index)
Release a reference counting lock on the adjacency.
Definition: adj.c:318
vlib_main_t * vlib_main
Definition: vxlan_gbp.h:187
unsigned int u32
Definition: types.h:88
static void vxlan_gbp_rewrite(vxlan_gbp_tunnel_t *t, bool is_ip6)
Definition: vxlan_gbp.c:223
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:1064
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:740
uword * mcast_shared
Definition: vxlan_gbp.h:178
Definition: fib_entry.h:275
unformat_function_t unformat_line_input
Definition: format.h:282
The identity of a DPO is a combination of its type and its instance number/index of objects of that t...
Definition: dpo.h:168
#define hash_create_mem(elts, key_bytes, value_bytes)
Definition: hash.h:661
#define hash_get(h, key)
Definition: hash.h:249
static vxlan_gbp_tunnel_t * vxlan_gbp_tunnel_from_fib_node(fib_node_t *node)
Definition: vxlan_gbp.c:157
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:511
void ip4_sw_interface_enable_disable(u32 sw_if_index, u32 is_enable)
Definition: ip4_forward.c:524
ip46_address_t fp_addr
The address type is not deriveable from the fp_addr member.
Definition: fib_types.h:226
dpo_type_t dpoi_type
the type
Definition: dpo.h:172
static const dpo_id_t * load_balance_get_bucket_i(const load_balance_t *lb, u32 bucket)
Definition: load_balance.h:228
clib_bihash_16_8_t vxlan4_gbp_tunnel_by_key
Definition: vxlan_gbp.h:169
long ctx[MAX_CONNS]
Definition: main.c:144
dpo_id_t next_dpo
Definition: vxlan_gbp.h:76
struct _unformat_input_t unformat_input_t
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:1082
load-balancing over a choice of [un]equal cost paths
Definition: dpo.h:102
static uword get_decap_next_for_node(u32 node_index, u32 ipv4_set)
Definition: vxlan_gbp.c:694
#define pool_put(P, E)
Free an object E in pool P.
Definition: pool.h:286
u32 sibling_index
The tunnel is a child of the FIB entry for its destination.
Definition: vxlan_gbp.h:125
The FIB DPO provieds;.
Definition: load_balance.h:106
#define PREDICT_FALSE(x)
Definition: clib.h:111
vnet_sw_interface_flags_t flags
Definition: interface.h:706
fib_node_type_t fn_type
The node&#39;s type.
Definition: fib_node.h:295
An node in the FIB graph.
Definition: fib_node.h:291
fib_node_index_t fib_entry_index
Definition: vxlan_gbp.h:116
u8 * format_vxlan_gbp_tunnel(u8 *s, va_list *args)
Definition: vxlan_gbp.c:53
#define ip46_address_initializer
Definition: ip6_packet.h:96
u8 len
Definition: ip_types.api:49
#define ip46_address_is_ip4(ip46)
Definition: ip6_packet.h:88
#define pool_get_aligned(P, E, A)
Allocate an object E from a pool P with alignment A.
Definition: pool.h:230
fib_node_index_t fib_table_entry_special_add(u32 fib_index, const fib_prefix_t *prefix, fib_source_t source, fib_entry_flag_t flags)
Add a &#39;special&#39; entry to the FIB.
Definition: fib_table.c:388
vlib_node_registration_t vxlan4_gbp_input_node
(constructor) VLIB_REGISTER_NODE (vxlan4_gbp_input_node)
Definition: decap.c:22
#define UNFORMAT_END_OF_INPUT
Definition: format.h:144
uword * instance_used
Definition: vxlan_gbp.h:191
vlib_main_t * vm
Definition: buffer.c:301
void fib_table_entry_delete_index(fib_node_index_t fib_entry_index, fib_source_t source)
Delete a FIB entry.
Definition: fib_table.c:877
vl_api_address_t dst
Definition: vxlan_gbp.api:33
u32 udp_ports_registered
Definition: vxlan_gbp.h:184
void udp_unregister_dst_port(vlib_main_t *vm, udp_dst_port_t dst_port, u8 is_ip4)
Definition: udp_local.c:530
vnet_flood_class_t
Definition: interface.h:647
fib_node_get_t fnv_get
Definition: fib_node.h:279
vlib_node_registration_t vxlan6_gbp_input_node
(constructor) VLIB_REGISTER_NODE (vxlan6_gbp_input_node)
Definition: decap.c:23
u32 fib_node_index_t
A typedef of a node index.
Definition: fib_types.h:30
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:170
u32 adj_index_t
An index for adjacencies.
Definition: adj_types.h:30
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:180
void fib_prefix_from_ip46_addr(const ip46_address_t *addr, fib_prefix_t *pfx)
Host prefix from ip.
Definition: fib_types.c:80
static uword vtep_addr_unref(ip46_address_t *ip)
Definition: vxlan_gbp.c:288
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:185
Aggregrate type for a prefix.
Definition: mfib_types.h:24
u8 * default_build_rewrite(vnet_main_t *vnm, u32 sw_if_index, vnet_link_t link_type, const void *dst_address)
Return a complete, zero-length (aka dummy) rewrite.
Definition: interface.c:1551
void vxlan_gbp_register_udp_ports(void)
Definition: vxlan_gbp.c:347
Context passed between object during a back walk.
Definition: fib_node.h:204
#define VLIB_CLI_COMMAND(x,...)
Definition: cli.h:155
ip46_address_t dst
Definition: vxlan_gbp.h:86
#define ASSERT(truth)
static load_balance_t * load_balance_get(index_t lbi)
Definition: load_balance.h:219
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:981
enum fib_forward_chain_type_t_ fib_forward_chain_type_t
FIB output chain type.
fib_route_path_flags_t frp_flags
flags on the path
Definition: fib_types.h:571
int vnet_vxlan_gbp_tunnel_del(u32 sw_if_index)
Definition: vxlan_gbp.c:664
dpo_proto_t fib_proto_to_dpo(fib_protocol_t fib_proto)
Definition: fib_types.c:237
#define foreach_copy_field
Definition: vxlan_gbp.c:214
fib_node_t node
Linkage into the FIB object graph.
Definition: vxlan_gbp.h:110
unformat_function_t unformat_ip46_address
Definition: format.h:65
ip46_address_t src
Definition: vxlan_gbp.h:85
static clib_error_t * vxlan_gbp_interface_admin_up_down(vnet_main_t *vnm, u32 hw_if_index, u32 flags)
Definition: vxlan_gbp.c:93
void vnet_delete_hw_interface(vnet_main_t *vnm, u32 hw_if_index)
Definition: interface.c:950
#define unformat_parse_error(input)
Definition: format.h:268
u32 ip_version_traffic_class_and_flow_label
Definition: ip6_packet.h:365
fib_protocol_t fp_proto
protocol type
Definition: mfib_types.h:33
u8 * format_vxlan_gbp_tunnel_mode(u8 *s, va_list *args)
Definition: vxlan_gbp.c:36
l2input_main_t l2input_main
Definition: l2_input.c:122
index_t dpoi_index
the index of objects of that type
Definition: dpo.h:184
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:726
A for-us/local path.
Definition: fib_types.h:332
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
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:1025
static fib_protocol_t fib_ip_proto(bool is_ip6)
Convert from boolean is_ip6 to FIB protocol.
Definition: fib_types.h:80
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:504
u64 uword
Definition: types.h:112
static void unformat_free(unformat_input_t *i)
Definition: format.h:162
static void hash_set_mem_alloc(uword **h, void *key, uword v)
Definition: hash.h:279
u32 vni
Definition: vxlan_gbp.api:36
#define DPO_INVALID
An initialiser for DPOs declared on the stack.
Definition: dpo.h:195
vxlan_gbp_tunnel_t * tunnels
Definition: vxlan_gbp.h:166
unformat_function_t unformat_vlib_node
Definition: node_funcs.h:1147
#define hash_get_mem(h, key)
Definition: hash.h:269
static void hash_unset_mem_free(uword **h, void *key)
Definition: hash.h:295
A FIB graph nodes virtual function table.
Definition: fib_node.h:278
u8 * format_unformat_error(u8 *s, va_list *va)
Definition: unformat.c:91
vl_api_gbp_vxlan_tunnel_mode_t mode
Definition: gbp.api:349
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:303
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:513
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
void dpo_reset(dpo_id_t *dpo)
reset a DPO ID The DPO will be unlocked.
Definition: dpo.c:231
vnet_link_t fib_proto_to_link(fib_protocol_t proto)
Convert from a protocol to a link type.
Definition: fib_types.c:271
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:492
u8 ip_version_and_header_length
Definition: ip4_packet.h:138
vxlan_gbp_tunnel_mode_t mode
Tunnel mode.
Definition: vxlan_gbp.h:105
#define vec_validate_init_empty(V, I, INIT)
Make sure vector is long enough for given index and initialize empty space (no header, unspecified alignment)
Definition: vec.h:488
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:59
void vlib_cli_output(vlib_main_t *vm, char *fmt,...)
Definition: cli.c:762
static u16 ip4_header_checksum(ip4_header_t *i)
Definition: ip4_packet.h:247
void ip6_sw_interface_enable_disable(u32 sw_if_index, u32 is_enable)
Definition: ip6_forward.c:142
void vnet_int_vxlan_gbp_bypass_mode(u32 sw_if_index, u8 is_ip6, u8 is_enable)
Definition: vxlan_gbp.c:969
const ip46_address_t zero_addr
Definition: lookup.c:318
#define VXLAN_GBP_HASH_NUM_BUCKETS
Definition: vxlan_gbp.c:1138
u32 * tunnel_index_by_sw_if_index
Definition: vxlan_gbp.h:181
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:972
int vnet_feature_enable_disable(const char *arc_name, const char *node_name, u32 sw_if_index, int enable_disable, void *feature_config, u32 n_feature_config_bytes)
Definition: feature.c:274
ip6_address_t dst_address
Definition: ip6_packet.h:378
static uword unformat_check_input(unformat_input_t *i)
Definition: format.h:170
vnet_main_t * vnet_main
Definition: vxlan_gbp.h:188
u8 * format_vxlan_gbp_encap_trace(u8 *s, va_list *args)
Definition: encap.c:57
static uword pool_elts(void *v)
Number of active elements in a pool.
Definition: pool.h:128