FD.io VPP  v18.01.2-1-g9b554f3
Vector Packet Processing
geneve.c
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2017 SUSE LLC.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at:
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 #include <vnet/geneve/geneve.h>
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/interface.h>
22 #include <vlib/vlib.h>
23 
24 /**
25  * @file
26  * @brief GENEVE.
27  *
28  * GENEVE provides the features needed to allow L2 bridge domains (BDs)
29  * to span multiple servers. This is done by building an L2 overlay on
30  * top of an L3 network underlay using GENEVE tunnels.
31  *
32  * This makes it possible for servers to be co-located in the same data
33  * center or be separated geographically as long as they are reachable
34  * through the underlay L3 network.
35  */
36 
37 
39 
40 static u8 *
41 format_decap_next (u8 * s, va_list * args)
42 {
43  u32 next_index = va_arg (*args, u32);
44 
45  switch (next_index)
46  {
47  case GENEVE_INPUT_NEXT_DROP:
48  return format (s, "drop");
49  case GENEVE_INPUT_NEXT_L2_INPUT:
50  return format (s, "l2");
51  default:
52  return format (s, "index %d", next_index);
53  }
54  return s;
55 }
56 
57 u8 *
58 format_geneve_tunnel (u8 * s, va_list * args)
59 {
60  geneve_tunnel_t *t = va_arg (*args, geneve_tunnel_t *);
61  geneve_main_t *ngm = &geneve_main;
62 
63  s = format (s, "[%d] local %U remote %U vni %d sw_if_index %d ",
64  t - ngm->tunnels,
67  t->vni, t->sw_if_index);
68 
70  s = format (s, "mcast_sw_if_index %d ", t->mcast_sw_if_index);
71 
72  s = format (s, "encap_fib_index %d fib_entry_index %d decap_next %U\n",
75  return s;
76 }
77 
78 static u8 *
79 format_geneve_name (u8 * s, va_list * args)
80 {
81  u32 dev_instance = va_arg (*args, u32);
82  return format (s, "geneve_tunnel%d", dev_instance);
83 }
84 
85 static clib_error_t *
87 {
88  u32 hw_flags = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) ?
90  vnet_hw_interface_set_flags (vnm, hw_if_index, hw_flags);
91 
92  return /* no error */ 0;
93 }
94 
95 /* *INDENT-OFF* */
96 VNET_DEVICE_CLASS (geneve_device_class, static) = {
97  .name = "GENEVE",
98  .format_device_name = format_geneve_name,
99  .format_tx_trace = format_geneve_encap_trace,
100  .admin_up_down_function = geneve_interface_admin_up_down,
101 };
102 /* *INDENT-ON* */
103 
104 static u8 *
106 {
107  u32 dev_instance = va_arg (*args, u32);
108  s = format (s, "unimplemented dev %u", dev_instance);
109  return s;
110 }
111 
112 /* *INDENT-OFF* */
113 VNET_HW_INTERFACE_CLASS (geneve_hw_class) = {
114  .name = "GENEVE",
115  .format_header = format_geneve_header_with_length,
116  .build_rewrite = default_build_rewrite,
117 };
118 /* *INDENT-ON* */
119 
120 static void
122 {
123  dpo_id_t dpo = DPO_INVALID;
124  u32 encap_index = ip46_address_is_ip4 (&t->remote) ?
128 
129  fib_entry_contribute_forwarding (t->fib_entry_index, forw_type, &dpo);
130  dpo_stack_from_node (encap_index, &t->next_dpo, &dpo);
131  dpo_reset (&dpo);
132 }
133 
134 static geneve_tunnel_t *
136 {
138  return ((geneve_tunnel_t *) (((char *) node) -
140 }
141 
142 /**
143  * Function definition to backwalk a FIB node -
144  * Here we will restack the new dpo of GENEVE DIP to encap node.
145  */
148 {
151 }
152 
153 /**
154  * Function definition to get a FIB node from its index
155  */
156 static fib_node_t *
158 {
159  geneve_tunnel_t *t;
160  geneve_main_t *vxm = &geneve_main;
161 
162  t = pool_elt_at_index (vxm->tunnels, index);
163 
164  return (&t->node);
165 }
166 
167 /**
168  * Function definition to inform the FIB node that its last lock has gone.
169  */
170 static void
172 {
173  /*
174  * The GENEVE tunnel is a root of the graph. As such
175  * it never has children and thus is never locked.
176  */
177  ASSERT (0);
178 }
179 
180 /*
181  * Virtual function table registered by GENEVE tunnels
182  * for participation in the FIB object graph.
183  */
184 const static fib_node_vft_t geneve_vft = {
186  .fnv_last_lock = geneve_tunnel_last_lock_gone,
187  .fnv_back_walk = geneve_tunnel_back_walk,
188 };
189 
190 
191 #define foreach_copy_field \
192 _(vni) \
193 _(mcast_sw_if_index) \
194 _(encap_fib_index) \
195 _(decap_next_index) \
196 _(local) \
197 _(remote)
198 
199 static int
200 geneve_rewrite (geneve_tunnel_t * t, bool is_ip6)
201 {
202  union
203  {
204  ip4_geneve_header_t *h4;
205  ip6_geneve_header_t *h6;
206  u8 *rw;
207  } r =
208  {
209  .rw = 0};
210  int len = is_ip6 ? sizeof *r.h6 : sizeof *r.h4;
211 #if SUPPORT_OPTIONS_HEADER==1
212  len += t->options_len;
213 #endif
214 
216 
217  udp_header_t *udp;
218  geneve_header_t *geneve;
219  /* Fixed portion of the (outer) ip header */
220  if (!is_ip6)
221  {
222  ip4_header_t *ip = &r.h4->ip4;
223  udp = &r.h4->udp, geneve = &r.h4->geneve;
224  ip->ip_version_and_header_length = 0x45;
225  ip->ttl = 254;
226  ip->protocol = IP_PROTOCOL_UDP;
227 
228  ip->src_address = t->local.ip4;
229  ip->dst_address = t->remote.ip4;
230 
231  /* we fix up the ip4 header length and checksum after-the-fact */
232  ip->checksum = ip4_header_checksum (ip);
233  }
234  else
235  {
236  ip6_header_t *ip = &r.h6->ip6;
237  udp = &r.h6->udp, geneve = &r.h6->geneve;
239  clib_host_to_net_u32 (6 << 28);
240  ip->hop_limit = 255;
241  ip->protocol = IP_PROTOCOL_UDP;
242 
243  ip->src_address = t->local.ip6;
244  ip->dst_address = t->remote.ip6;
245  }
246 
247  /* UDP header, randomize local port on something, maybe? */
248  udp->src_port = clib_host_to_net_u16 (5251);
249  udp->dst_port = clib_host_to_net_u16 (UDP_DST_PORT_geneve);
250 
251  /* GENEVE header */
253 #if SUPPORT_OPTIONS_HEADER==1
254  vnet_set_geneve_options_len (geneve, t->options_len);
255 #else
256  vnet_set_geneve_options_len (geneve, 0);
257 #endif
258  vnet_set_geneve_oamframe_bit (geneve, 0);
259  vnet_set_geneve_critical_bit (geneve, 0);
261 
263 
264  vnet_set_geneve_vni (geneve, t->vni);
265 
266  t->rewrite = r.rw;
267  return (0);
268 }
269 
270 static bool
272  u32 decap_next_index)
273 {
274  vlib_main_t *vm = vxm->vlib_main;
275  u32 input_idx =
276  (!is_ip6) ? geneve4_input_node.index : geneve6_input_node.index;
277  vlib_node_runtime_t *r = vlib_node_get_runtime (vm, input_idx);
278 
279  return decap_next_index < r->n_next_nodes;
280 }
281 
282 static uword
283 vtep_addr_ref (ip46_address_t * ip)
284 {
285  uword *vtep = ip46_address_is_ip4 (ip) ?
286  hash_get (geneve_main.vtep4, ip->ip4.as_u32) :
287  hash_get_mem (geneve_main.vtep6, &ip->ip6);
288  if (vtep)
289  return ++(*vtep);
290  ip46_address_is_ip4 (ip) ?
291  hash_set (geneve_main.vtep4, ip->ip4.as_u32, 1) :
292  hash_set_mem_alloc (&geneve_main.vtep6, &ip->ip6, 1);
293  return 1;
294 }
295 
296 static uword
297 vtep_addr_unref (ip46_address_t * ip)
298 {
299  uword *vtep = ip46_address_is_ip4 (ip) ?
300  hash_get (geneve_main.vtep4, ip->ip4.as_u32) :
301  hash_get_mem (geneve_main.vtep6, &ip->ip6);
302  ASSERT (vtep);
303  if (--(*vtep) != 0)
304  return *vtep;
305  ip46_address_is_ip4 (ip) ?
306  hash_unset (geneve_main.vtep4, ip->ip4.as_u32) :
307  hash_unset_mem_free (&geneve_main.vtep6, &ip->ip6);
308  return 0;
309 }
310 
311 typedef CLIB_PACKED (union
312  {
313  struct
314  {
315  fib_node_index_t mfib_entry_index;
316  adj_index_t mcast_adj_index;
317  }; u64 as_u64;
318  }) mcast_shared_t;
319 
320 static inline mcast_shared_t
321 mcast_shared_get (ip46_address_t * ip)
322 {
324  uword *p = hash_get_mem (geneve_main.mcast_shared, ip);
325  ASSERT (p);
326  return (mcast_shared_t)
327  {
328  .as_u64 = *p};
329 }
330 
331 static inline void
332 mcast_shared_add (ip46_address_t * remote,
333  fib_node_index_t mfei, adj_index_t ai)
334 {
335  mcast_shared_t new_ep = {
336  .mcast_adj_index = ai,
337  .mfib_entry_index = mfei,
338  };
339 
340  hash_set_mem_alloc (&geneve_main.mcast_shared, remote, new_ep.as_u64);
341 }
342 
343 static inline void
344 mcast_shared_remove (ip46_address_t * remote)
345 {
346  mcast_shared_t ep = mcast_shared_get (remote);
347 
348  adj_unlock (ep.mcast_adj_index);
349  mfib_table_entry_delete_index (ep.mfib_entry_index, MFIB_SOURCE_GENEVE);
350 
351  hash_unset_mem_free (&geneve_main.mcast_shared, remote);
352 }
353 
354 static inline fib_protocol_t
355 fib_ip_proto (bool is_ip6)
356 {
357  return (is_ip6) ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4;
358 }
359 
362 {
363  geneve_main_t *vxm = &geneve_main;
364  geneve_tunnel_t *t = 0;
365  vnet_main_t *vnm = vxm->vnet_main;
366  uword *p;
367  u32 hw_if_index = ~0;
368  u32 sw_if_index = ~0;
369  int rv;
370  geneve4_tunnel_key_t key4;
371  geneve6_tunnel_key_t key6;
372  u32 is_ip6 = a->is_ip6;
373 
374  if (!is_ip6)
375  {
376  key4.remote = a->remote.ip4.as_u32;
377  key4.vni =
378  clib_host_to_net_u32 ((a->vni << GENEVE_VNI_SHIFT) & GENEVE_VNI_MASK);
379  p = hash_get (vxm->geneve4_tunnel_by_key, key4.as_u64);
380  }
381  else
382  {
383  key6.remote = a->remote.ip6;
384  key6.vni =
385  clib_host_to_net_u32 ((a->vni << GENEVE_VNI_SHIFT) & GENEVE_VNI_MASK);
386  p = hash_get_mem (vxm->geneve6_tunnel_by_key, &key6);
387  }
388 
389  if (a->is_add)
390  {
391  l2input_main_t *l2im = &l2input_main;
392 
393  /* adding a tunnel: tunnel must not already exist */
394  if (p)
395  return VNET_API_ERROR_TUNNEL_EXIST;
396 
397  /*if not set explicitly, default to l2 */
398  if (a->decap_next_index == ~0)
399  a->decap_next_index = GENEVE_INPUT_NEXT_L2_INPUT;
400  if (!geneve_decap_next_is_valid (vxm, is_ip6, a->decap_next_index))
401  return VNET_API_ERROR_INVALID_DECAP_NEXT;
402 
404  memset (t, 0, sizeof (*t));
405 
406  /* copy from arg structure */
407 #define _(x) t->x = a->x;
409 #undef _
410 
411  rv = geneve_rewrite (t, is_ip6);
412  if (rv)
413  {
414  pool_put (vxm->tunnels, t);
415  return rv;
416  }
417 
418  /* copy the key */
419  if (is_ip6)
421  t - vxm->tunnels);
422  else
423  hash_set (vxm->geneve4_tunnel_by_key, key4.as_u64, t - vxm->tunnels);
424 
427  {
429  hw_if_index = vxm->free_geneve_tunnel_hw_if_indices
431  _vec_len (vxm->free_geneve_tunnel_hw_if_indices) -= 1;
432 
433  hi = vnet_get_hw_interface (vnm, hw_if_index);
434  hi->dev_instance = t - vxm->tunnels;
435  hi->hw_instance = hi->dev_instance;
436 
437  /* clear old stats of freed tunnel before reuse */
438  sw_if_index = hi->sw_if_index;
442  sw_if_index);
445  sw_if_index);
448  sw_if_index);
450  }
451  else
452  {
453  hw_if_index = vnet_register_interface
454  (vnm, geneve_device_class.index, t - vxm->tunnels,
455  geneve_hw_class.index, t - vxm->tunnels);
456  hi = vnet_get_hw_interface (vnm, hw_if_index);
457  }
458 
459  /* Set geneve tunnel output node */
460  u32 encap_index = !is_ip6 ?
462  vnet_set_interface_output_node (vnm, hw_if_index, encap_index);
463 
464  t->hw_if_index = hw_if_index;
465  t->sw_if_index = sw_if_index = hi->sw_if_index;
466 
468  ~0);
469  vxm->tunnel_index_by_sw_if_index[sw_if_index] = t - vxm->tunnels;
470 
471  /* setup l2 input config with l2 feature and bd 0 to drop packet */
472  vec_validate (l2im->configs, sw_if_index);
473  l2im->configs[sw_if_index].feature_bitmap = L2INPUT_FEAT_DROP;
474  l2im->configs[sw_if_index].bd_index = 0;
475 
476  vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
478  vnet_sw_interface_set_flags (vnm, sw_if_index,
480 
482  fib_prefix_t tun_remote_pfx;
484 
485  fib_prefix_from_ip46_addr (&t->remote, &tun_remote_pfx);
487  {
488  /* Unicast tunnel -
489  * source the FIB entry for the tunnel's destination
490  * and become a child thereof. The tunnel will then get poked
491  * when the forwarding for the entry updates, and the tunnel can
492  * re-stack accordingly
493  */
494  vtep_addr_ref (&t->local);
496  (t->encap_fib_index, &tun_remote_pfx, FIB_SOURCE_RR,
500  t - vxm->tunnels);
502  }
503  else
504  {
505  /* Multicast tunnel -
506  * as the same mcast group can be used for mutiple mcast tunnels
507  * with different VNIs, create the output fib adjecency only if
508  * it does not already exist
509  */
510  fib_protocol_t fp = fib_ip_proto (is_ip6);
511 
512  if (vtep_addr_ref (&t->remote) == 1)
513  {
514  fib_node_index_t mfei;
515  adj_index_t ai;
516  fib_route_path_t path = {
517  .frp_proto = fib_proto_to_dpo (fp),
518  .frp_addr = zero_addr,
519  .frp_sw_if_index = 0xffffffff,
520  .frp_fib_index = ~0,
521  .frp_weight = 0,
522  .frp_flags = FIB_ROUTE_PATH_LOCAL,
523  };
524  const mfib_prefix_t mpfx = {
525  .fp_proto = fp,
526  .fp_len = (is_ip6 ? 128 : 32),
527  .fp_grp_addr = tun_remote_pfx.fp_addr,
528  };
529 
530  /*
531  * Setup the (*,G) to receive traffic on the mcast group
532  * - the forwarding interface is for-us
533  * - the accepting interface is that from the API
534  */
536  &mpfx,
538  &path, MFIB_ITF_FLAG_FORWARD);
539 
543  &mpfx,
545  &path,
547 
548  /*
549  * Create the mcast adjacency to send traffic to the group
550  */
551  ai = adj_mcast_add_or_lock (fp,
552  fib_proto_to_link (fp),
553  a->mcast_sw_if_index);
554 
555  /*
556  * create a new end-point
557  */
558  mcast_shared_add (&t->remote, mfei, ai);
559  }
560 
561  dpo_id_t dpo = DPO_INVALID;
562  mcast_shared_t ep = mcast_shared_get (&t->remote);
563 
564  /* Stack shared mcast remote mac addr rewrite on encap */
566  fib_proto_to_dpo (fp), ep.mcast_adj_index);
567 
568  dpo_stack_from_node (encap_index, &t->next_dpo, &dpo);
569  dpo_reset (&dpo);
570  flood_class = VNET_FLOOD_CLASS_TUNNEL_MASTER;
571  }
572 
573  vnet_get_sw_interface (vnet_get_main (), sw_if_index)->flood_class =
574  flood_class;
575  }
576  else
577  {
578  /* deleting a tunnel: tunnel must exist */
579  if (!p)
580  return VNET_API_ERROR_NO_SUCH_ENTRY;
581 
582  t = pool_elt_at_index (vxm->tunnels, p[0]);
583 
584  sw_if_index = t->sw_if_index;
585  vnet_sw_interface_set_flags (vnm, t->sw_if_index, 0 /* down */ );
588 
589  /* make sure tunnel is removed from l2 bd or xconnect */
590  set_int_l2_mode (vxm->vlib_main, vnm, MODE_L3, t->sw_if_index, 0, 0, 0,
591  0);
593 
595 
596  if (!is_ip6)
597  hash_unset (vxm->geneve4_tunnel_by_key, key4.as_u64);
598  else
600 
602  {
603  vtep_addr_unref (&t->local);
606  }
607  else if (vtep_addr_unref (&t->remote) == 0)
608  {
610  }
611 
612  fib_node_deinit (&t->node);
613  vec_free (t->rewrite);
614  pool_put (vxm->tunnels, t);
615  }
616 
617  if (sw_if_indexp)
618  *sw_if_indexp = sw_if_index;
619 
620  return 0;
621 }
622 
623 static uword
624 get_decap_next_for_node (u32 node_index, u32 ipv4_set)
625 {
626  geneve_main_t *vxm = &geneve_main;
627  vlib_main_t *vm = vxm->vlib_main;
628  uword input_node = (ipv4_set) ? geneve4_input_node.index :
629  geneve6_input_node.index;
630 
631  return vlib_node_add_next (vm, input_node, node_index);
632 }
633 
634 static uword
635 unformat_decap_next (unformat_input_t * input, va_list * args)
636 {
637  u32 *result = va_arg (*args, u32 *);
638  u32 ipv4_set = va_arg (*args, int);
639  geneve_main_t *vxm = &geneve_main;
640  vlib_main_t *vm = vxm->vlib_main;
641  u32 node_index;
642  u32 tmp;
643 
644  if (unformat (input, "l2"))
645  *result = GENEVE_INPUT_NEXT_L2_INPUT;
646  else if (unformat (input, "node %U", unformat_vlib_node, vm, &node_index))
647  *result = get_decap_next_for_node (node_index, ipv4_set);
648  else if (unformat (input, "%d", &tmp))
649  *result = tmp;
650  else
651  return 0;
652  return 1;
653 }
654 
655 static clib_error_t *
657  unformat_input_t * input,
658  vlib_cli_command_t * cmd)
659 {
660  unformat_input_t _line_input, *line_input = &_line_input;
661  ip46_address_t local, remote;
662  u8 is_add = 1;
663  u8 local_set = 0;
664  u8 remote_set = 0;
665  u8 grp_set = 0;
666  u8 ipv4_set = 0;
667  u8 ipv6_set = 0;
668  u32 encap_fib_index = 0;
669  u32 mcast_sw_if_index = ~0;
670  u32 decap_next_index = GENEVE_INPUT_NEXT_L2_INPUT;
671  u32 vni = 0;
672  u32 tmp;
673  int rv;
675  u32 tunnel_sw_if_index;
676  clib_error_t *error = NULL;
677 
678  /* Cant "universally zero init" (={0}) due to GCC bug 53119 */
679  memset (&local, 0, sizeof local);
680  memset (&remote, 0, sizeof remote);
681 
682  /* Get a line of input. */
683  if (!unformat_user (input, unformat_line_input, line_input))
684  return 0;
685 
686  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
687  {
688  if (unformat (line_input, "del"))
689  {
690  is_add = 0;
691  }
692  else if (unformat (line_input, "local %U",
693  unformat_ip4_address, &local.ip4))
694  {
695  local_set = 1;
696  ipv4_set = 1;
697  }
698  else if (unformat (line_input, "remote %U",
699  unformat_ip4_address, &remote.ip4))
700  {
701  remote_set = 1;
702  ipv4_set = 1;
703  }
704  else if (unformat (line_input, "local %U",
705  unformat_ip6_address, &local.ip6))
706  {
707  local_set = 1;
708  ipv6_set = 1;
709  }
710  else if (unformat (line_input, "remote %U",
711  unformat_ip6_address, &remote.ip6))
712  {
713  remote_set = 1;
714  ipv6_set = 1;
715  }
716  else if (unformat (line_input, "group %U %U",
717  unformat_ip4_address, &remote.ip4,
719  vnet_get_main (), &mcast_sw_if_index))
720  {
721  grp_set = remote_set = 1;
722  ipv4_set = 1;
723  }
724  else if (unformat (line_input, "group %U %U",
725  unformat_ip6_address, &remote.ip6,
727  vnet_get_main (), &mcast_sw_if_index))
728  {
729  grp_set = remote_set = 1;
730  ipv6_set = 1;
731  }
732  else if (unformat (line_input, "encap-vrf-id %d", &tmp))
733  {
734  encap_fib_index = fib_table_find (fib_ip_proto (ipv6_set), tmp);
735  if (encap_fib_index == ~0)
736  {
737  error =
738  clib_error_return (0, "nonexistent encap-vrf-id %d", tmp);
739  goto done;
740  }
741  }
742  else if (unformat (line_input, "decap-next %U", unformat_decap_next,
743  &decap_next_index, ipv4_set))
744  ;
745  else if (unformat (line_input, "vni %d", &vni))
746  {
747  if (vni >> 24)
748  {
749  error = clib_error_return (0, "vni %d out of range", vni);
750  goto done;
751  }
752  }
753  else
754  {
755  error = clib_error_return (0, "parse error: '%U'",
756  format_unformat_error, line_input);
757  goto done;
758  }
759  }
760 
761  if (local_set == 0)
762  {
763  error = clib_error_return (0, "tunnel local address not specified");
764  goto done;
765  }
766 
767  if (remote_set == 0)
768  {
769  error = clib_error_return (0, "tunnel remote address not specified");
770  goto done;
771  }
772 
773  if (grp_set && !ip46_address_is_multicast (&remote))
774  {
775  error = clib_error_return (0, "tunnel group address not multicast");
776  goto done;
777  }
778 
779  if (grp_set == 0 && ip46_address_is_multicast (&remote))
780  {
781  error = clib_error_return (0, "remote address must be unicast");
782  goto done;
783  }
784 
785  if (grp_set && mcast_sw_if_index == ~0)
786  {
787  error = clib_error_return (0, "tunnel nonexistent multicast device");
788  goto done;
789  }
790 
791  if (ipv4_set && ipv6_set)
792  {
793  error = clib_error_return (0, "both IPv4 and IPv6 addresses specified");
794  goto done;
795  }
796 
797  if (ip46_address_cmp (&local, &remote) == 0)
798  {
799  error =
800  clib_error_return (0, "local and remote addresses are identical");
801  goto done;
802  }
803 
804  if (decap_next_index == ~0)
805  {
806  error = clib_error_return (0, "next node not found");
807  goto done;
808  }
809 
810  if (vni == 0)
811  {
812  error = clib_error_return (0, "vni not specified");
813  goto done;
814  }
815 
816  memset (a, 0, sizeof (*a));
817 
818  a->is_add = is_add;
819  a->is_ip6 = ipv6_set;
820 
821 #define _(x) a->x = x;
823 #undef _
824 
825  rv = vnet_geneve_add_del_tunnel (a, &tunnel_sw_if_index);
826 
827  switch (rv)
828  {
829  case 0:
830  if (is_add)
832  vnet_get_main (), tunnel_sw_if_index);
833  break;
834 
835  case VNET_API_ERROR_TUNNEL_EXIST:
836  error = clib_error_return (0, "tunnel already exists...");
837  goto done;
838 
839  case VNET_API_ERROR_NO_SUCH_ENTRY:
840  error = clib_error_return (0, "tunnel does not exist...");
841  goto done;
842 
843  default:
844  error = clib_error_return
845  (0, "vnet_geneve_add_del_tunnel returned %d", rv);
846  goto done;
847  }
848 
849 done:
850  unformat_free (line_input);
851 
852  return error;
853 }
854 
855 /*?
856  * Add or delete a GENEVE Tunnel.
857  *
858  * GENEVE provides the features needed to allow L2 bridge domains (BDs)
859  * to span multiple servers. This is done by building an L2 overlay on
860  * top of an L3 network underlay using GENEVE tunnels.
861  *
862  * This makes it possible for servers to be co-located in the same data
863  * center or be separated geographically as long as they are reachable
864  * through the underlay L3 network.
865  *
866  * You can refer to this kind of L2 overlay bridge domain as a GENEVE
867  * segment.
868  *
869  * @cliexpar
870  * Example of how to create a GENEVE Tunnel:
871  * @cliexcmd{create geneve tunnel local 10.0.3.1 remote 10.0.3.3 vni 13 encap-vrf-id 7}
872  * Example of how to delete a GENEVE Tunnel:
873  * @cliexcmd{create geneve tunnel local 10.0.3.1 remote 10.0.3.3 vni 13 del}
874  ?*/
875 /* *INDENT-OFF* */
876 VLIB_CLI_COMMAND (create_geneve_tunnel_command, static) = {
877  .path = "create geneve tunnel",
878  .short_help =
879  "create geneve tunnel local <local-vtep-addr>"
880  " {remote <remote-vtep-addr>|group <mcast-vtep-addr> <intf-name>} vni <nn>"
881  " [encap-vrf-id <nn>] [decap-next [l2|node <name>]] [del]",
883 };
884 /* *INDENT-ON* */
885 
886 static clib_error_t *
888  unformat_input_t * input,
889  vlib_cli_command_t * cmd)
890 {
891  geneve_main_t *vxm = &geneve_main;
892  geneve_tunnel_t *t;
893 
894  if (pool_elts (vxm->tunnels) == 0)
895  vlib_cli_output (vm, "No geneve tunnels configured...");
896 
897  pool_foreach (t, vxm->tunnels, (
898  {
899  vlib_cli_output (vm, "%U",
900  format_geneve_tunnel, t);
901  }
902  ));
903 
904  return 0;
905 }
906 
907 /*?
908  * Display all the GENEVE Tunnel entries.
909  *
910  * @cliexpar
911  * Example of how to display the GENEVE Tunnel entries:
912  * @cliexstart{show geneve tunnel}
913  * [0] local 10.0.3.1 remote 10.0.3.3 vni 13 encap_fib_index 0 sw_if_index 5 decap_next l2
914  * @cliexend
915  ?*/
916 /* *INDENT-OFF* */
917 VLIB_CLI_COMMAND (show_geneve_tunnel_command, static) = {
918  .path = "show geneve tunnel",
919  .short_help = "show geneve tunnel",
920  .function = show_geneve_tunnel_command_fn,
921 };
922 /* *INDENT-ON* */
923 
924 
925 void
926 vnet_int_geneve_bypass_mode (u32 sw_if_index, u8 is_ip6, u8 is_enable)
927 {
928  if (is_ip6)
929  vnet_feature_enable_disable ("ip6-unicast", "ip6-geneve-bypass",
930  sw_if_index, is_enable, 0, 0);
931  else
932  vnet_feature_enable_disable ("ip4-unicast", "ip4-geneve-bypass",
933  sw_if_index, is_enable, 0, 0);
934 }
935 
936 
937 static clib_error_t *
939  unformat_input_t * input, vlib_cli_command_t * cmd)
940 {
941  unformat_input_t _line_input, *line_input = &_line_input;
942  vnet_main_t *vnm = vnet_get_main ();
943  clib_error_t *error = 0;
944  u32 sw_if_index, is_enable;
945 
946  sw_if_index = ~0;
947  is_enable = 1;
948 
949  if (!unformat_user (input, unformat_line_input, line_input))
950  return 0;
951 
952  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
953  {
954  if (unformat_user
955  (line_input, unformat_vnet_sw_interface, vnm, &sw_if_index))
956  ;
957  else if (unformat (line_input, "del"))
958  is_enable = 0;
959  else
960  {
961  error = unformat_parse_error (line_input);
962  goto done;
963  }
964  }
965 
966  if (~0 == sw_if_index)
967  {
968  error = clib_error_return (0, "unknown interface `%U'",
969  format_unformat_error, line_input);
970  goto done;
971  }
972 
973  vnet_int_geneve_bypass_mode (sw_if_index, is_ip6, is_enable);
974 
975 done:
976  unformat_free (line_input);
977 
978  return error;
979 }
980 
981 static clib_error_t *
983  unformat_input_t * input, vlib_cli_command_t * cmd)
984 {
985  return set_ip_geneve_bypass (0, input, cmd);
986 }
987 
988 /*?
989  * This command adds the 'ip4-geneve-bypass' graph node for a given interface.
990  * By adding the IPv4 geneve-bypass graph node to an interface, the node checks
991  * for and validate input geneve packet and bypass ip4-lookup, ip4-local,
992  * ip4-udp-lookup nodes to speedup geneve packet forwarding. This node will
993  * cause extra overhead to for non-geneve packets which is kept at a minimum.
994  *
995  * @cliexpar
996  * @parblock
997  * Example of graph node before ip4-geneve-bypass is enabled:
998  * @cliexstart{show vlib graph ip4-geneve-bypass}
999  * Name Next Previous
1000  * ip4-geneve-bypass error-drop [0]
1001  * geneve4-input [1]
1002  * ip4-lookup [2]
1003  * @cliexend
1004  *
1005  * Example of how to enable ip4-geneve-bypass on an interface:
1006  * @cliexcmd{set interface ip geneve-bypass GigabitEthernet2/0/0}
1007  *
1008  * Example of graph node after ip4-geneve-bypass is enabled:
1009  * @cliexstart{show vlib graph ip4-geneve-bypass}
1010  * Name Next Previous
1011  * ip4-geneve-bypass error-drop [0] ip4-input
1012  * geneve4-input [1] ip4-input-no-checksum
1013  * ip4-lookup [2]
1014  * @cliexend
1015  *
1016  * Example of how to display the feature enabed on an interface:
1017  * @cliexstart{show ip interface features GigabitEthernet2/0/0}
1018  * IP feature paths configured on GigabitEthernet2/0/0...
1019  * ...
1020  * ipv4 unicast:
1021  * ip4-geneve-bypass
1022  * ip4-lookup
1023  * ...
1024  * @cliexend
1025  *
1026  * Example of how to disable ip4-geneve-bypass on an interface:
1027  * @cliexcmd{set interface ip geneve-bypass GigabitEthernet2/0/0 del}
1028  * @endparblock
1029 ?*/
1030 /* *INDENT-OFF* */
1031 VLIB_CLI_COMMAND (set_interface_ip_geneve_bypass_command, static) = {
1032  .path = "set interface ip geneve-bypass",
1033  .function = set_ip4_geneve_bypass,
1034  .short_help = "set interface ip geneve-bypass <interface> [del]",
1035 };
1036 /* *INDENT-ON* */
1037 
1038 static clib_error_t *
1040  unformat_input_t * input, vlib_cli_command_t * cmd)
1041 {
1042  return set_ip_geneve_bypass (1, input, cmd);
1043 }
1044 
1045 /*?
1046  * This command adds the 'ip6-geneve-bypass' graph node for a given interface.
1047  * By adding the IPv6 geneve-bypass graph node to an interface, the node checks
1048  * for and validate input geneve packet and bypass ip6-lookup, ip6-local,
1049  * ip6-udp-lookup nodes to speedup geneve packet forwarding. This node will
1050  * cause extra overhead to for non-geneve packets which is kept at a minimum.
1051  *
1052  * @cliexpar
1053  * @parblock
1054  * Example of graph node before ip6-geneve-bypass is enabled:
1055  * @cliexstart{show vlib graph ip6-geneve-bypass}
1056  * Name Next Previous
1057  * ip6-geneve-bypass error-drop [0]
1058  * geneve6-input [1]
1059  * ip6-lookup [2]
1060  * @cliexend
1061  *
1062  * Example of how to enable ip6-geneve-bypass on an interface:
1063  * @cliexcmd{set interface ip6 geneve-bypass GigabitEthernet2/0/0}
1064  *
1065  * Example of graph node after ip6-geneve-bypass is enabled:
1066  * @cliexstart{show vlib graph ip6-geneve-bypass}
1067  * Name Next Previous
1068  * ip6-geneve-bypass error-drop [0] ip6-input
1069  * geneve6-input [1] ip4-input-no-checksum
1070  * ip6-lookup [2]
1071  * @cliexend
1072  *
1073  * Example of how to display the feature enabed on an interface:
1074  * @cliexstart{show ip interface features GigabitEthernet2/0/0}
1075  * IP feature paths configured on GigabitEthernet2/0/0...
1076  * ...
1077  * ipv6 unicast:
1078  * ip6-geneve-bypass
1079  * ip6-lookup
1080  * ...
1081  * @cliexend
1082  *
1083  * Example of how to disable ip6-geneve-bypass on an interface:
1084  * @cliexcmd{set interface ip6 geneve-bypass GigabitEthernet2/0/0 del}
1085  * @endparblock
1086 ?*/
1087 /* *INDENT-OFF* */
1088 VLIB_CLI_COMMAND (set_interface_ip6_geneve_bypass_command, static) = {
1089  .path = "set interface ip6 geneve-bypass",
1090  .function = set_ip6_geneve_bypass,
1091  .short_help = "set interface ip geneve-bypass <interface> [del]",
1092 };
1093 /* *INDENT-ON* */
1094 
1095 clib_error_t *
1097 {
1098  geneve_main_t *vxm = &geneve_main;
1099 
1100  vxm->vnet_main = vnet_get_main ();
1101  vxm->vlib_main = vm;
1102 
1103  /* initialize the ip6 hash */
1105  sizeof (geneve6_tunnel_key_t),
1106  sizeof (uword));
1107  vxm->vtep6 = hash_create_mem (0, sizeof (ip6_address_t), sizeof (uword));
1108  vxm->mcast_shared = hash_create_mem (0,
1109  sizeof (ip46_address_t),
1110  sizeof (mcast_shared_t));
1111 
1112  udp_register_dst_port (vm, UDP_DST_PORT_geneve,
1113  geneve4_input_node.index, /* is_ip4 */ 1);
1114  udp_register_dst_port (vm, UDP_DST_PORT_geneve6,
1115  geneve6_input_node.index, /* is_ip4 */ 0);
1116 
1118 
1119  return 0;
1120 }
1121 
1123 
1124 /*
1125  * fd.io coding-style-patch-verification: ON
1126  *
1127  * Local Variables:
1128  * eval: (c-set-style "gnu")
1129  * End:
1130  */
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment) ...
Definition: vec.h:432
vlib_main_t * vlib_main
Definition: geneve.h:174
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 ...
static void vnet_geneve_hdr_1word_hton(geneve_header_t *h)
static clib_error_t * set_ip6_geneve_bypass(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: geneve.c:1039
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:485
vmrglw vmrglh hi
Recursive resolution source.
Definition: fib_entry.h:117
Contribute an object that is to be used to forward IP6 packets.
Definition: fib_types.h:92
#define hash_set(h, key, value)
Definition: hash.h:254
l2_input_config_t * configs
Definition: l2_input.h:66
static u8 * format_geneve_header_with_length(u8 *s, va_list *args)
Definition: geneve.c:105
u32 hw_if_index
Definition: geneve.h:107
clib_error_t * vnet_hw_interface_set_flags(vnet_main_t *vnm, u32 hw_if_index, u32 flags)
Definition: interface.c:538
#define hash_unset(h, key)
Definition: hash.h:260
static uword ip46_address_is_multicast(ip46_address_t *a)
Definition: ip6_packet.h:151
A representation of a path as described by a route producer.
Definition: fib_types.h:377
ip4_address_t src_address
Definition: ip4_packet.h:164
vnet_main_t * vnet_get_main(void)
Definition: misc.c:47
static void mcast_shared_add(ip46_address_t *remote, fib_node_index_t mfei, adj_index_t ai)
Definition: geneve.c:332
vnet_interface_main_t interface_main
Definition: vnet.h:56
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 * free_geneve_tunnel_hw_if_indices
Definition: geneve.h:168
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:503
#define NULL
Definition: clib.h:55
u32 decap_next_index
Definition: geneve.h:100
fib_node_t node
Linkage into the FIB object graph.
Definition: geneve.h:112
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:408
static vnet_hw_interface_t * vnet_get_hw_interface(vnet_main_t *vnm, u32 hw_if_index)
void fib_entry_child_remove(fib_node_index_t fib_entry_index, u32 sibling_index)
Definition: fib_entry.c:514
#define vec_add1(V, E)
Add 1 element to end of vector (unspecified alignment).
Definition: vec.h:518
#define foreach_copy_field
Definition: geneve.c:191
static geneve_tunnel_t * geneve_tunnel_from_fib_node(fib_node_t *node)
Definition: geneve.c:135
u32 mcast_sw_if_index
Definition: geneve.h:97
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:88
static clib_error_t * geneve_add_del_tunnel_command_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: geneve.c:656
#define STRUCT_OFFSET_OF(t, f)
Definition: clib.h:62
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)
uword * vtep6
Definition: geneve.h:162
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:419
dpo_id_t next_dpo
Definition: geneve.h:82
dpo_proto_t frp_proto
The protocol of the address below.
Definition: fib_types.h:382
unformat_function_t unformat_vnet_sw_interface
static uword vtep_addr_ref(ip46_address_t *ip)
Definition: geneve.c:283
#define VNET_HW_INTERFACE_FLAG_LINK_UP
Definition: interface.h:394
#define vec_validate_aligned(V, I, A)
Make sure vector is long enough for given index (no header, specified alignment)
Definition: vec.h:443
uword * mcast_shared
Definition: geneve.h:165
int vnet_geneve_add_del_tunnel(vnet_geneve_add_del_tunnel_args_t *a, u32 *sw_if_indexp)
Definition: geneve.c:361
u32 * tunnel_index_by_sw_if_index
Definition: geneve.h:171
vlib_node_registration_t geneve6_encap_node
(constructor) VLIB_REGISTER_NODE (geneve6_encap_node)
Definition: encap.c:577
ip6_address_t src_address
Definition: ip6_packet.h:341
#define ip46_address_cmp(ip46_1, ip46_2)
Definition: ip6_packet.h:80
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:1108
geneve_tunnel_t * tunnels
Definition: geneve.h:153
enum fib_protocol_t_ fib_protocol_t
Protocol 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
static clib_error_t * show_geneve_tunnel_command_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: geneve.c:887
VNET_HW_INTERFACE_CLASS(geneve_hw_class)
vnet_flood_class_t flood_class
Definition: interface.h:618
clib_error_t * geneve_init(vlib_main_t *vm)
Definition: geneve.c:1096
#define pool_foreach(VAR, POOL, BODY)
Iterate through pool.
Definition: pool.h:438
unformat_function_t unformat_ip4_address
Definition: format.h:76
u32 frp_sw_if_index
The interface.
Definition: fib_types.h:412
static fib_node_back_walk_rc_t geneve_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 GENEVE DIP to encap ...
Definition: geneve.c:147
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:111
static void vnet_set_geneve_oamframe_bit(geneve_header_t *h, u8 oam)
u8 * rewrite
Definition: geneve.h:79
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:380
ip4_address_t dst_address
Definition: ip4_packet.h:164
vlib_combined_counter_main_t * combined_sw_if_counters
Definition: interface.h:672
static fib_protocol_t fib_ip_proto(bool is_ip6)
Definition: geneve.c:355
Aggregrate type for a prefix.
Definition: fib_types.h:172
u8 * format_geneve_encap_trace(u8 *s, va_list *args)
Definition: encap.c:53
#define clib_error_return(e, args...)
Definition: error.h:99
static void vnet_set_geneve_options_len(geneve_header_t *h, u8 len)
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:219
unsigned long u64
Definition: types.h:89
void adj_unlock(adj_index_t adj_index)
Release a reference counting lock on the adjacency.
Definition: adj.c:239
static clib_error_t * set_ip_geneve_bypass(u32 is_ip6, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: geneve.c:938
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:1028
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:689
u32 set_int_l2_mode(vlib_main_t *vm, vnet_main_t *vnet_main, u32 mode, u32 sw_if_index, u32 bd_index, u32 bvi, u32 shg, u32 xc_sw_if_index)
Set the subinterface to run in l2 or l3 mode.
Definition: l2_input.c:565
Definition: fib_entry.h:238
unformat_function_t unformat_line_input
Definition: format.h:281
static void vnet_set_geneve_vni(geneve_header_t *h, u32 vni)
#define GENEVE_ETH_PROTOCOL
Definition: geneve_packet.h:99
The identity of a DPO is a combination of its type and its instance number/index of objects of that t...
Definition: dpo.h:166
#define hash_create_mem(elts, key_bytes, value_bytes)
Definition: hash.h:660
#define hash_get(h, key)
Definition: hash.h:248
#define GENEVE_VNI_MASK
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:459
static void vlib_zero_combined_counter(vlib_combined_counter_main_t *cm, u32 index)
Clear a combined counter Clears the set of per-thread counters.
Definition: counter.h:276
typedef CLIB_PACKED(union{struct{fib_node_index_t mfib_entry_index;adj_index_t mcast_adj_index;};u64 as_u64;})
Definition: geneve.c:311
ip46_address_t fp_addr
The address type is not deriveable from the fp_addr member.
Definition: fib_types.h:195
u32 encap_fib_index
Definition: geneve.h:103
static clib_error_t * set_ip4_geneve_bypass(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: geneve.c:982
struct _unformat_input_t unformat_input_t
u8 * format_geneve_tunnel(u8 *s, va_list *args)
Definition: geneve.c:58
#define pool_put(P, E)
Free an object E in pool P.
Definition: pool.h:271
static void vnet_set_geneve_version(geneve_header_t *h, u8 version)
static u8 * format_geneve_name(u8 *s, va_list *args)
Definition: geneve.c:79
vlib_simple_counter_main_t * sw_if_counters
Definition: interface.h:671
static void vnet_set_geneve_protocol(geneve_header_t *h, u16 protocol)
fib_node_type_t fn_type
The node&#39;s type.
Definition: fib_node.h:290
An node in the FIB graph.
Definition: fib_node.h:286
static void geneve_tunnel_last_lock_gone(fib_node_t *node)
Function definition to inform the FIB node that its last lock has gone.
Definition: geneve.c:171
#define ip46_address_is_ip4(ip46)
Definition: ip6_packet.h:76
unformat_function_t unformat_ip6_address
Definition: format.h:94
#define pool_get_aligned(P, E, A)
Allocate an object E from a pool P (general version).
Definition: pool.h:188
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:371
vlib_node_registration_t geneve4_input_node
(constructor) VLIB_REGISTER_NODE (geneve4_input_node)
Definition: decap.c:20
#define UNFORMAT_END_OF_INPUT
Definition: format.h:143
uword * vtep4
Definition: geneve.h:161
vlib_main_t * vm
Definition: buffer.c:283
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:860
#define vec_free(V)
Free vector&#39;s memory (no header).
Definition: vec.h:336
ip46_address_t local
Definition: geneve.h:93
vnet_flood_class_t
Definition: interface.h:557
static vlib_node_runtime_t * vlib_node_get_runtime(vlib_main_t *vm, u32 node_index)
Get node runtime by node index.
Definition: node_funcs.h:89
fib_node_get_t fnv_get
Definition: fib_node.h:274
static void vnet_interface_counter_unlock(vnet_interface_main_t *im)
Definition: interface.h:697
#define VNET_SW_INTERFACE_FLAG_HIDDEN
Definition: interface.h:588
u32 fib_node_index_t
A typedef of a node index.
Definition: fib_types.h:29
u32 adj_index_t
An index for adjacencies.
Definition: adj_types.h:30
void fib_prefix_from_ip46_addr(const ip46_address_t *addr, fib_prefix_t *pfx)
Host prefix from ip.
Definition: fib_types.c:54
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:182
uword * geneve4_tunnel_by_key
Definition: geneve.h:156
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:1424
Context passed between object during a back walk.
Definition: fib_node.h:199
#define VLIB_CLI_COMMAND(x,...)
Definition: cli.h:154
static void vnet_interface_counter_lock(vnet_interface_main_t *im)
Definition: interface.h:689
VNET_DEVICE_CLASS(geneve_device_class, static)
u32 sw_if_index
Definition: geneve.h:106
#define VNET_SW_INTERFACE_FLAG_ADMIN_UP
Definition: interface.h:576
#define ASSERT(truth)
unsigned int u32
Definition: types.h:88
long ctx[MAX_CONNS]
Definition: main.c:122
enum fib_forward_chain_type_t_ fib_forward_chain_type_t
FIB output chain type.
static fib_node_t * geneve_tunnel_fib_node_get(fib_node_index_t index)
Function definition to get a FIB node from its index.
Definition: geneve.c:157
fib_route_path_flags_t frp_flags
flags on the path
Definition: fib_types.h:469
static void geneve_tunnel_restack_dpo(geneve_tunnel_t *t)
Definition: geneve.c:121
static void vlib_zero_simple_counter(vlib_simple_counter_main_t *cm, u32 index)
Clear a simple counter Clears the set of per-thread u16 counters, and the u64 counter.
Definition: counter.h:123
u32 sibling_index
The tunnel is a child of the FIB entry for its desintion.
Definition: geneve.h:127
dpo_proto_t fib_proto_to_dpo(fib_protocol_t fib_proto)
Definition: fib_types.c:211
static int geneve_rewrite(geneve_tunnel_t *t, bool is_ip6)
Definition: geneve.c:200
static void vnet_set_geneve_critical_bit(geneve_header_t *h, u8 critical_opts)
u64 uword
Definition: types.h:112
vnet_main_t * vnet_main
Definition: geneve.h:175
static clib_error_t * geneve_interface_admin_up_down(vnet_main_t *vnm, u32 hw_if_index, u32 flags)
Definition: geneve.c:86
#define unformat_parse_error(input)
Definition: format.h:267
u32 ip_version_traffic_class_and_flow_label
Definition: ip6_packet.h:328
fib_protocol_t fp_proto
protocol type
Definition: mfib_types.h:33
l2input_main_t l2input_main
Definition: l2_input.c:113
ip46_address_t remote
Definition: geneve.h:94
A for-us/local path.
Definition: fib_types.h:301
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
unsigned char u8
Definition: types.h:56
#define GENEVE_VNI_SHIFT
uword * geneve6_tunnel_by_key
Definition: geneve.h:157
static void unformat_free(unformat_input_t *i)
Definition: format.h:161
static void hash_set_mem_alloc(uword **h, void *key, uword v)
Definition: hash.h:278
fib_node_index_t fib_entry_index
Definition: geneve.h:118
#define DPO_INVALID
An initialiser for DPOs declared on the stack.
Definition: dpo.h:193
#define GENEVE_VERSION
Definition: geneve_packet.h:98
static uword get_decap_next_for_node(u32 node_index, u32 ipv4_set)
Definition: geneve.c:624
static void mcast_shared_remove(ip46_address_t *remote)
Definition: geneve.c:344
unformat_function_t unformat_vlib_node
Definition: node_funcs.h:1155
#define hash_get_mem(h, key)
Definition: hash.h:268
static void hash_unset_mem_free(uword **h, void *key)
Definition: hash.h:294
A FIB graph nodes virtual function table.
Definition: fib_node.h:273
vlib_node_registration_t geneve6_input_node
(constructor) VLIB_REGISTER_NODE (geneve6_input_node)
Definition: decap.c:21
u8 * format_unformat_error(u8 *s, va_list *va)
Definition: unformat.c:91
static u8 * format_decap_next(u8 *s, va_list *args)
Definition: geneve.c:41
geneve_main_t geneve_main
Definition: geneve.c:38
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
static bool geneve_decap_next_is_valid(geneve_main_t *vxm, u32 is_ip6, u32 decap_next_index)
Definition: geneve.c:271
static uword unformat_decap_next(unformat_input_t *input, va_list *args)
Definition: geneve.c:635
void dpo_reset(dpo_id_t *dpo)
reset a DPO ID The DPO will be unlocked.
Definition: dpo.c:228
vlib_node_registration_t geneve4_encap_node
(constructor) VLIB_REGISTER_NODE (geneve4_encap_node)
Definition: encap.c:561
vnet_link_t fib_proto_to_link(fib_protocol_t proto)
Convert from a protocol to a link type.
Definition: fib_types.c:245
clib_error_t * vnet_sw_interface_set_flags(vnet_main_t *vnm, u32 sw_if_index, u32 flags)
Definition: interface.c:546
static uword vtep_addr_unref(ip46_address_t *ip)
Definition: geneve.c:297
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:132
u32 flags
Definition: vhost-user.h:77
#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:481
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:67
void vlib_cli_output(vlib_main_t *vm, char *fmt,...)
Definition: cli.c:680
static u16 ip4_header_checksum(ip4_header_t *i)
Definition: ip4_packet.h:239
const ip46_address_t zero_addr
Definition: lookup.c:359
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:229
ip6_address_t dst_address
Definition: ip6_packet.h:341
static uword unformat_check_input(unformat_input_t *i)
Definition: format.h:169
#define MODE_L3
Definition: l2_input.h:202
void vnet_int_geneve_bypass_mode(u32 sw_if_index, u8 is_ip6, u8 is_enable)
Definition: geneve.c:926
static uword pool_elts(void *v)
Number of active elements in a pool.
Definition: pool.h:128