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Vector Packet Processing
geneve.c
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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] lcl %U rmt %U vni %d fib-idx %d sw-if-idx %d ",
64  t - ngm->tunnels,
67  t->vni, t->encap_fib_index, t->sw_if_index);
68 
69  s = format (s, "encap-dpo-idx %d ", t->next_dpo.dpoi_index);
70  s = format (s, "decap-next-%U ", format_decap_next, t->decap_next_index);
71 
73  s = format (s, "mcast-sw-if-idx %d ", t->mcast_sw_if_index);
74 
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
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 
356 {
357  geneve_main_t *vxm = &geneve_main;
358  geneve_tunnel_t *t = 0;
359  vnet_main_t *vnm = vxm->vnet_main;
360  uword *p;
361  u32 hw_if_index = ~0;
362  u32 sw_if_index = ~0;
363  int rv;
364  geneve4_tunnel_key_t key4;
365  geneve6_tunnel_key_t key6;
366  u32 is_ip6 = a->is_ip6;
367 
368  if (!is_ip6)
369  {
370  key4.remote = a->remote.ip4.as_u32;
371  key4.vni =
372  clib_host_to_net_u32 ((a->vni << GENEVE_VNI_SHIFT) & GENEVE_VNI_MASK);
373  p = hash_get (vxm->geneve4_tunnel_by_key, key4.as_u64);
374  }
375  else
376  {
377  key6.remote = a->remote.ip6;
378  key6.vni =
379  clib_host_to_net_u32 ((a->vni << GENEVE_VNI_SHIFT) & GENEVE_VNI_MASK);
380  p = hash_get_mem (vxm->geneve6_tunnel_by_key, &key6);
381  }
382 
383  if (a->is_add)
384  {
385  l2input_main_t *l2im = &l2input_main;
386 
387  /* adding a tunnel: tunnel must not already exist */
388  if (p)
389  return VNET_API_ERROR_TUNNEL_EXIST;
390 
391  /*if not set explicitly, default to l2 */
392  if (a->decap_next_index == ~0)
393  a->decap_next_index = GENEVE_INPUT_NEXT_L2_INPUT;
394  if (!geneve_decap_next_is_valid (vxm, is_ip6, a->decap_next_index))
395  return VNET_API_ERROR_INVALID_DECAP_NEXT;
396 
398  memset (t, 0, sizeof (*t));
399 
400  /* copy from arg structure */
401 #define _(x) t->x = a->x;
403 #undef _
404 
405  rv = geneve_rewrite (t, is_ip6);
406  if (rv)
407  {
408  pool_put (vxm->tunnels, t);
409  return rv;
410  }
411 
412  /* copy the key */
413  if (is_ip6)
415  t - vxm->tunnels);
416  else
417  hash_set (vxm->geneve4_tunnel_by_key, key4.as_u64, t - vxm->tunnels);
418 
421  {
423  hw_if_index = vxm->free_geneve_tunnel_hw_if_indices
425  _vec_len (vxm->free_geneve_tunnel_hw_if_indices) -= 1;
426 
427  hi = vnet_get_hw_interface (vnm, hw_if_index);
428  hi->dev_instance = t - vxm->tunnels;
429  hi->hw_instance = hi->dev_instance;
430 
431  /* clear old stats of freed tunnel before reuse */
432  sw_if_index = hi->sw_if_index;
436  sw_if_index);
439  sw_if_index);
442  sw_if_index);
444  }
445  else
446  {
447  hw_if_index = vnet_register_interface
448  (vnm, geneve_device_class.index, t - vxm->tunnels,
449  geneve_hw_class.index, t - vxm->tunnels);
450  hi = vnet_get_hw_interface (vnm, hw_if_index);
451  }
452 
453  /* Set geneve tunnel output node */
454  u32 encap_index = !is_ip6 ?
456  vnet_set_interface_output_node (vnm, hw_if_index, encap_index);
457 
458  t->hw_if_index = hw_if_index;
459  t->sw_if_index = sw_if_index = hi->sw_if_index;
460 
462  ~0);
464 
465  /* setup l2 input config with l2 feature and bd 0 to drop packet */
466  vec_validate (l2im->configs, sw_if_index);
467  l2im->configs[sw_if_index].feature_bitmap = L2INPUT_FEAT_DROP;
468  l2im->configs[sw_if_index].bd_index = 0;
469 
470  vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
472  vnet_sw_interface_set_flags (vnm, sw_if_index,
474 
476  fib_prefix_t tun_remote_pfx;
478 
479  fib_prefix_from_ip46_addr (&t->remote, &tun_remote_pfx);
481  {
482  /* Unicast tunnel -
483  * source the FIB entry for the tunnel's destination
484  * and become a child thereof. The tunnel will then get poked
485  * when the forwarding for the entry updates, and the tunnel can
486  * re-stack accordingly
487  */
488  vtep_addr_ref (&t->local);
490  (t->encap_fib_index, &tun_remote_pfx, FIB_SOURCE_RR,
494  t - vxm->tunnels);
496  }
497  else
498  {
499  /* Multicast tunnel -
500  * as the same mcast group can be used for mutiple mcast tunnels
501  * with different VNIs, create the output fib adjecency only if
502  * it does not already exist
503  */
504  fib_protocol_t fp = fib_ip_proto (is_ip6);
505 
506  if (vtep_addr_ref (&t->remote) == 1)
507  {
508  fib_node_index_t mfei;
509  adj_index_t ai;
510  fib_route_path_t path = {
511  .frp_proto = fib_proto_to_dpo (fp),
512  .frp_addr = zero_addr,
513  .frp_sw_if_index = 0xffffffff,
514  .frp_fib_index = ~0,
515  .frp_weight = 0,
516  .frp_flags = FIB_ROUTE_PATH_LOCAL,
517  };
518  const mfib_prefix_t mpfx = {
519  .fp_proto = fp,
520  .fp_len = (is_ip6 ? 128 : 32),
521  .fp_grp_addr = tun_remote_pfx.fp_addr,
522  };
523 
524  /*
525  * Setup the (*,G) to receive traffic on the mcast group
526  * - the forwarding interface is for-us
527  * - the accepting interface is that from the API
528  */
530  &mpfx,
532  &path, MFIB_ITF_FLAG_FORWARD);
533 
537  &mpfx,
539  &path,
541 
542  /*
543  * Create the mcast adjacency to send traffic to the group
544  */
545  ai = adj_mcast_add_or_lock (fp,
546  fib_proto_to_link (fp),
547  a->mcast_sw_if_index);
548 
549  /*
550  * create a new end-point
551  */
552  mcast_shared_add (&t->remote, mfei, ai);
553  }
554 
555  dpo_id_t dpo = DPO_INVALID;
556  mcast_shared_t ep = mcast_shared_get (&t->remote);
557 
558  /* Stack shared mcast remote mac addr rewrite on encap */
560  fib_proto_to_dpo (fp), ep.mcast_adj_index);
561 
562  dpo_stack_from_node (encap_index, &t->next_dpo, &dpo);
563  dpo_reset (&dpo);
564  flood_class = VNET_FLOOD_CLASS_TUNNEL_MASTER;
565  }
566 
567  vnet_get_sw_interface (vnet_get_main (), sw_if_index)->flood_class =
568  flood_class;
569  }
570  else
571  {
572  /* deleting a tunnel: tunnel must exist */
573  if (!p)
574  return VNET_API_ERROR_NO_SUCH_ENTRY;
575 
576  t = pool_elt_at_index (vxm->tunnels, p[0]);
577 
578  sw_if_index = t->sw_if_index;
579  vnet_sw_interface_set_flags (vnm, t->sw_if_index, 0 /* down */ );
582 
583  /* make sure tunnel is removed from l2 bd or xconnect */
584  set_int_l2_mode (vxm->vlib_main, vnm, MODE_L3, t->sw_if_index, 0,
585  L2_BD_PORT_TYPE_NORMAL, 0, 0);
587 
589 
590  if (!is_ip6)
591  hash_unset (vxm->geneve4_tunnel_by_key, key4.as_u64);
592  else
594 
596  {
597  vtep_addr_unref (&t->local);
600  }
601  else if (vtep_addr_unref (&t->remote) == 0)
602  {
604  }
605 
606  fib_node_deinit (&t->node);
607  vec_free (t->rewrite);
608  pool_put (vxm->tunnels, t);
609  }
610 
611  if (sw_if_indexp)
612  *sw_if_indexp = sw_if_index;
613 
614  return 0;
615 }
616 
617 static uword
618 get_decap_next_for_node (u32 node_index, u32 ipv4_set)
619 {
620  geneve_main_t *vxm = &geneve_main;
621  vlib_main_t *vm = vxm->vlib_main;
622  uword input_node = (ipv4_set) ? geneve4_input_node.index :
623  geneve6_input_node.index;
624 
625  return vlib_node_add_next (vm, input_node, node_index);
626 }
627 
628 static uword
629 unformat_decap_next (unformat_input_t * input, va_list * args)
630 {
631  u32 *result = va_arg (*args, u32 *);
632  u32 ipv4_set = va_arg (*args, int);
633  geneve_main_t *vxm = &geneve_main;
634  vlib_main_t *vm = vxm->vlib_main;
635  u32 node_index;
636  u32 tmp;
637 
638  if (unformat (input, "l2"))
639  *result = GENEVE_INPUT_NEXT_L2_INPUT;
640  else if (unformat (input, "node %U", unformat_vlib_node, vm, &node_index))
641  *result = get_decap_next_for_node (node_index, ipv4_set);
642  else if (unformat (input, "%d", &tmp))
643  *result = tmp;
644  else
645  return 0;
646  return 1;
647 }
648 
649 static clib_error_t *
651  unformat_input_t * input,
652  vlib_cli_command_t * cmd)
653 {
654  unformat_input_t _line_input, *line_input = &_line_input;
655  ip46_address_t local, remote;
656  u8 is_add = 1;
657  u8 local_set = 0;
658  u8 remote_set = 0;
659  u8 grp_set = 0;
660  u8 ipv4_set = 0;
661  u8 ipv6_set = 0;
662  u32 encap_fib_index = 0;
663  u32 mcast_sw_if_index = ~0;
664  u32 decap_next_index = GENEVE_INPUT_NEXT_L2_INPUT;
665  u32 vni = 0;
666  u32 tmp;
667  int rv;
669  u32 tunnel_sw_if_index;
670  clib_error_t *error = NULL;
671 
672  /* Cant "universally zero init" (={0}) due to GCC bug 53119 */
673  memset (&local, 0, sizeof local);
674  memset (&remote, 0, sizeof remote);
675 
676  /* Get a line of input. */
677  if (!unformat_user (input, unformat_line_input, line_input))
678  return 0;
679 
680  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
681  {
682  if (unformat (line_input, "del"))
683  {
684  is_add = 0;
685  }
686  else if (unformat (line_input, "local %U",
687  unformat_ip4_address, &local.ip4))
688  {
689  local_set = 1;
690  ipv4_set = 1;
691  }
692  else if (unformat (line_input, "remote %U",
693  unformat_ip4_address, &remote.ip4))
694  {
695  remote_set = 1;
696  ipv4_set = 1;
697  }
698  else if (unformat (line_input, "local %U",
699  unformat_ip6_address, &local.ip6))
700  {
701  local_set = 1;
702  ipv6_set = 1;
703  }
704  else if (unformat (line_input, "remote %U",
705  unformat_ip6_address, &remote.ip6))
706  {
707  remote_set = 1;
708  ipv6_set = 1;
709  }
710  else if (unformat (line_input, "group %U %U",
711  unformat_ip4_address, &remote.ip4,
713  vnet_get_main (), &mcast_sw_if_index))
714  {
715  grp_set = remote_set = 1;
716  ipv4_set = 1;
717  }
718  else if (unformat (line_input, "group %U %U",
719  unformat_ip6_address, &remote.ip6,
721  vnet_get_main (), &mcast_sw_if_index))
722  {
723  grp_set = remote_set = 1;
724  ipv6_set = 1;
725  }
726  else if (unformat (line_input, "encap-vrf-id %d", &tmp))
727  {
728  encap_fib_index = fib_table_find (fib_ip_proto (ipv6_set), tmp);
729  if (encap_fib_index == ~0)
730  {
731  error =
732  clib_error_return (0, "nonexistent encap-vrf-id %d", tmp);
733  goto done;
734  }
735  }
736  else if (unformat (line_input, "decap-next %U", unformat_decap_next,
737  &decap_next_index, ipv4_set))
738  ;
739  else if (unformat (line_input, "vni %d", &vni))
740  {
741  if (vni >> 24)
742  {
743  error = clib_error_return (0, "vni %d out of range", vni);
744  goto done;
745  }
746  }
747  else
748  {
749  error = clib_error_return (0, "parse error: '%U'",
750  format_unformat_error, line_input);
751  goto done;
752  }
753  }
754 
755  if (local_set == 0)
756  {
757  error = clib_error_return (0, "tunnel local address not specified");
758  goto done;
759  }
760 
761  if (remote_set == 0)
762  {
763  error = clib_error_return (0, "tunnel remote address not specified");
764  goto done;
765  }
766 
767  if (grp_set && !ip46_address_is_multicast (&remote))
768  {
769  error = clib_error_return (0, "tunnel group address not multicast");
770  goto done;
771  }
772 
773  if (grp_set == 0 && ip46_address_is_multicast (&remote))
774  {
775  error = clib_error_return (0, "remote address must be unicast");
776  goto done;
777  }
778 
779  if (grp_set && mcast_sw_if_index == ~0)
780  {
781  error = clib_error_return (0, "tunnel nonexistent multicast device");
782  goto done;
783  }
784 
785  if (ipv4_set && ipv6_set)
786  {
787  error = clib_error_return (0, "both IPv4 and IPv6 addresses specified");
788  goto done;
789  }
790 
791  if (ip46_address_cmp (&local, &remote) == 0)
792  {
793  error =
794  clib_error_return (0, "local and remote addresses are identical");
795  goto done;
796  }
797 
798  if (decap_next_index == ~0)
799  {
800  error = clib_error_return (0, "next node not found");
801  goto done;
802  }
803 
804  if (vni == 0)
805  {
806  error = clib_error_return (0, "vni not specified");
807  goto done;
808  }
809 
810  memset (a, 0, sizeof (*a));
811 
812  a->is_add = is_add;
813  a->is_ip6 = ipv6_set;
814 
815 #define _(x) a->x = x;
817 #undef _
818 
819  rv = vnet_geneve_add_del_tunnel (a, &tunnel_sw_if_index);
820 
821  switch (rv)
822  {
823  case 0:
824  if (is_add)
826  vnet_get_main (), tunnel_sw_if_index);
827  break;
828 
829  case VNET_API_ERROR_TUNNEL_EXIST:
830  error = clib_error_return (0, "tunnel already exists...");
831  goto done;
832 
833  case VNET_API_ERROR_NO_SUCH_ENTRY:
834  error = clib_error_return (0, "tunnel does not exist...");
835  goto done;
836 
837  default:
838  error = clib_error_return
839  (0, "vnet_geneve_add_del_tunnel returned %d", rv);
840  goto done;
841  }
842 
843 done:
844  unformat_free (line_input);
845 
846  return error;
847 }
848 
849 /*?
850  * Add or delete a GENEVE Tunnel.
851  *
852  * GENEVE provides the features needed to allow L2 bridge domains (BDs)
853  * to span multiple servers. This is done by building an L2 overlay on
854  * top of an L3 network underlay using GENEVE tunnels.
855  *
856  * This makes it possible for servers to be co-located in the same data
857  * center or be separated geographically as long as they are reachable
858  * through the underlay L3 network.
859  *
860  * You can refer to this kind of L2 overlay bridge domain as a GENEVE
861  * segment.
862  *
863  * @cliexpar
864  * Example of how to create a GENEVE Tunnel:
865  * @cliexcmd{create geneve tunnel local 10.0.3.1 remote 10.0.3.3 vni 13 encap-vrf-id 7}
866  * Example of how to delete a GENEVE Tunnel:
867  * @cliexcmd{create geneve tunnel local 10.0.3.1 remote 10.0.3.3 vni 13 del}
868  ?*/
869 /* *INDENT-OFF* */
870 VLIB_CLI_COMMAND (create_geneve_tunnel_command, static) = {
871  .path = "create geneve tunnel",
872  .short_help =
873  "create geneve tunnel local <local-vtep-addr>"
874  " {remote <remote-vtep-addr>|group <mcast-vtep-addr> <intf-name>} vni <nn>"
875  " [encap-vrf-id <nn>] [decap-next [l2|node <name>]] [del]",
877 };
878 /* *INDENT-ON* */
879 
880 static clib_error_t *
882  unformat_input_t * input,
883  vlib_cli_command_t * cmd)
884 {
885  geneve_main_t *vxm = &geneve_main;
886  geneve_tunnel_t *t;
887 
888  if (pool_elts (vxm->tunnels) == 0)
889  vlib_cli_output (vm, "No geneve tunnels configured...");
890 
891  pool_foreach (t, vxm->tunnels, (
892  {
893  vlib_cli_output (vm, "%U",
894  format_geneve_tunnel, t);
895  }
896  ));
897 
898  return 0;
899 }
900 
901 /*?
902  * Display all the GENEVE Tunnel entries.
903  *
904  * @cliexpar
905  * Example of how to display the GENEVE Tunnel entries:
906  * @cliexstart{show geneve tunnel}
907  * [0] local 10.0.3.1 remote 10.0.3.3 vni 13 encap_fib_index 0 sw_if_index 5 decap_next l2
908  * @cliexend
909  ?*/
910 /* *INDENT-OFF* */
911 VLIB_CLI_COMMAND (show_geneve_tunnel_command, static) = {
912  .path = "show geneve tunnel",
913  .short_help = "show geneve tunnel",
914  .function = show_geneve_tunnel_command_fn,
915 };
916 /* *INDENT-ON* */
917 
918 
919 void
921 {
922  if (is_ip6)
923  vnet_feature_enable_disable ("ip6-unicast", "ip6-geneve-bypass",
924  sw_if_index, is_enable, 0, 0);
925  else
926  vnet_feature_enable_disable ("ip4-unicast", "ip4-geneve-bypass",
927  sw_if_index, is_enable, 0, 0);
928 }
929 
930 
931 static clib_error_t *
933  unformat_input_t * input, vlib_cli_command_t * cmd)
934 {
935  unformat_input_t _line_input, *line_input = &_line_input;
936  vnet_main_t *vnm = vnet_get_main ();
937  clib_error_t *error = 0;
938  u32 sw_if_index, is_enable;
939 
940  sw_if_index = ~0;
941  is_enable = 1;
942 
943  if (!unformat_user (input, unformat_line_input, line_input))
944  return 0;
945 
946  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
947  {
948  if (unformat_user
949  (line_input, unformat_vnet_sw_interface, vnm, &sw_if_index))
950  ;
951  else if (unformat (line_input, "del"))
952  is_enable = 0;
953  else
954  {
955  error = unformat_parse_error (line_input);
956  goto done;
957  }
958  }
959 
960  if (~0 == sw_if_index)
961  {
962  error = clib_error_return (0, "unknown interface `%U'",
963  format_unformat_error, line_input);
964  goto done;
965  }
966 
967  vnet_int_geneve_bypass_mode (sw_if_index, is_ip6, is_enable);
968 
969 done:
970  unformat_free (line_input);
971 
972  return error;
973 }
974 
975 static clib_error_t *
977  unformat_input_t * input, vlib_cli_command_t * cmd)
978 {
979  return set_ip_geneve_bypass (0, input, cmd);
980 }
981 
982 /*?
983  * This command adds the 'ip4-geneve-bypass' graph node for a given interface.
984  * By adding the IPv4 geneve-bypass graph node to an interface, the node checks
985  * for and validate input geneve packet and bypass ip4-lookup, ip4-local,
986  * ip4-udp-lookup nodes to speedup geneve packet forwarding. This node will
987  * cause extra overhead to for non-geneve packets which is kept at a minimum.
988  *
989  * @cliexpar
990  * @parblock
991  * Example of graph node before ip4-geneve-bypass is enabled:
992  * @cliexstart{show vlib graph ip4-geneve-bypass}
993  * Name Next Previous
994  * ip4-geneve-bypass error-drop [0]
995  * geneve4-input [1]
996  * ip4-lookup [2]
997  * @cliexend
998  *
999  * Example of how to enable ip4-geneve-bypass on an interface:
1000  * @cliexcmd{set interface ip geneve-bypass GigabitEthernet2/0/0}
1001  *
1002  * Example of graph node after ip4-geneve-bypass is enabled:
1003  * @cliexstart{show vlib graph ip4-geneve-bypass}
1004  * Name Next Previous
1005  * ip4-geneve-bypass error-drop [0] ip4-input
1006  * geneve4-input [1] ip4-input-no-checksum
1007  * ip4-lookup [2]
1008  * @cliexend
1009  *
1010  * Example of how to display the feature enabed on an interface:
1011  * @cliexstart{show ip interface features GigabitEthernet2/0/0}
1012  * IP feature paths configured on GigabitEthernet2/0/0...
1013  * ...
1014  * ipv4 unicast:
1015  * ip4-geneve-bypass
1016  * ip4-lookup
1017  * ...
1018  * @cliexend
1019  *
1020  * Example of how to disable ip4-geneve-bypass on an interface:
1021  * @cliexcmd{set interface ip geneve-bypass GigabitEthernet2/0/0 del}
1022  * @endparblock
1023 ?*/
1024 /* *INDENT-OFF* */
1025 VLIB_CLI_COMMAND (set_interface_ip_geneve_bypass_command, static) = {
1026  .path = "set interface ip geneve-bypass",
1027  .function = set_ip4_geneve_bypass,
1028  .short_help = "set interface ip geneve-bypass <interface> [del]",
1029 };
1030 /* *INDENT-ON* */
1031 
1032 static clib_error_t *
1034  unformat_input_t * input, vlib_cli_command_t * cmd)
1035 {
1036  return set_ip_geneve_bypass (1, input, cmd);
1037 }
1038 
1039 /*?
1040  * This command adds the 'ip6-geneve-bypass' graph node for a given interface.
1041  * By adding the IPv6 geneve-bypass graph node to an interface, the node checks
1042  * for and validate input geneve packet and bypass ip6-lookup, ip6-local,
1043  * ip6-udp-lookup nodes to speedup geneve packet forwarding. This node will
1044  * cause extra overhead to for non-geneve packets which is kept at a minimum.
1045  *
1046  * @cliexpar
1047  * @parblock
1048  * Example of graph node before ip6-geneve-bypass is enabled:
1049  * @cliexstart{show vlib graph ip6-geneve-bypass}
1050  * Name Next Previous
1051  * ip6-geneve-bypass error-drop [0]
1052  * geneve6-input [1]
1053  * ip6-lookup [2]
1054  * @cliexend
1055  *
1056  * Example of how to enable ip6-geneve-bypass on an interface:
1057  * @cliexcmd{set interface ip6 geneve-bypass GigabitEthernet2/0/0}
1058  *
1059  * Example of graph node after ip6-geneve-bypass is enabled:
1060  * @cliexstart{show vlib graph ip6-geneve-bypass}
1061  * Name Next Previous
1062  * ip6-geneve-bypass error-drop [0] ip6-input
1063  * geneve6-input [1] ip4-input-no-checksum
1064  * ip6-lookup [2]
1065  * @cliexend
1066  *
1067  * Example of how to display the feature enabed on an interface:
1068  * @cliexstart{show ip interface features GigabitEthernet2/0/0}
1069  * IP feature paths configured on GigabitEthernet2/0/0...
1070  * ...
1071  * ipv6 unicast:
1072  * ip6-geneve-bypass
1073  * ip6-lookup
1074  * ...
1075  * @cliexend
1076  *
1077  * Example of how to disable ip6-geneve-bypass on an interface:
1078  * @cliexcmd{set interface ip6 geneve-bypass GigabitEthernet2/0/0 del}
1079  * @endparblock
1080 ?*/
1081 /* *INDENT-OFF* */
1082 VLIB_CLI_COMMAND (set_interface_ip6_geneve_bypass_command, static) = {
1083  .path = "set interface ip6 geneve-bypass",
1084  .function = set_ip6_geneve_bypass,
1085  .short_help = "set interface ip geneve-bypass <interface> [del]",
1086 };
1087 /* *INDENT-ON* */
1088 
1089 clib_error_t *
1091 {
1092  geneve_main_t *vxm = &geneve_main;
1093 
1094  vxm->vnet_main = vnet_get_main ();
1095  vxm->vlib_main = vm;
1096 
1097  /* initialize the ip6 hash */
1099  sizeof (geneve6_tunnel_key_t),
1100  sizeof (uword));
1101  vxm->vtep6 = hash_create_mem (0, sizeof (ip6_address_t), sizeof (uword));
1102  vxm->mcast_shared = hash_create_mem (0,
1103  sizeof (ip46_address_t),
1104  sizeof (mcast_shared_t));
1105 
1106  udp_register_dst_port (vm, UDP_DST_PORT_geneve,
1107  geneve4_input_node.index, /* is_ip4 */ 1);
1108  udp_register_dst_port (vm, UDP_DST_PORT_geneve6,
1109  geneve6_input_node.index, /* is_ip4 */ 0);
1110 
1112 
1113  return 0;
1114 }
1115 
1117 
1118 /*
1119  * fd.io coding-style-patch-verification: ON
1120  *
1121  * Local Variables:
1122  * eval: (c-set-style "gnu")
1123  * End:
1124  */
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment) ...
Definition: vec.h:437
vlib_main_t * vlib_main
Definition: geneve.h:177
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:1033
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
Recursive resolution source.
Definition: fib_entry.h:125
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
static u8 * format_geneve_header_with_length(u8 *s, va_list *args)
Definition: geneve.c:105
u32 hw_if_index
Definition: geneve.h:110
clib_error_t * vnet_hw_interface_set_flags(vnet_main_t *vnm, u32 hw_if_index, u32 flags)
Definition: interface.c:469
#define hash_unset(h, key)
Definition: hash.h:261
A representation of a path as described by a route producer.
Definition: fib_types.h:470
ip4_address_t src_address
Definition: ip4_packet.h:169
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:171
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:527
unsigned long u64
Definition: types.h:89
#define NULL
Definition: clib.h:57
u32 decap_next_index
Definition: geneve.h:103
fib_node_t node
Linkage into the FIB object graph.
Definition: geneve.h:115
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:419
u32 mcast_sw_if_index
Definition: vxlan_gbp.api:35
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:538
#define vec_add1(V, E)
Add 1 element to end of vector (unspecified alignment).
Definition: vec.h:523
#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:100
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
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:650
#define STRUCT_OFFSET_OF(t, f)
Definition: clib.h:64
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:165
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:419
dpo_id_t next_dpo
Definition: geneve.h:85
dpo_proto_t frp_proto
The protocol of the address below.
Definition: fib_types.h:475
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:494
#define vec_validate_aligned(V, I, A)
Make sure vector is long enough for given index (no header, specified alignment)
Definition: vec.h:448
uword * mcast_shared
Definition: geneve.h:168
int vnet_geneve_add_del_tunnel(vnet_geneve_add_del_tunnel_args_t *a, u32 *sw_if_indexp)
Definition: geneve.c:355
u32 * tunnel_index_by_sw_if_index
Definition: geneve.h:174
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: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:1118
unsigned char u8
Definition: types.h:56
geneve_tunnel_t * tunnels
Definition: geneve.h:156
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
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:881
VNET_HW_INTERFACE_CLASS(geneve_hw_class)
vnet_flood_class_t flood_class
Definition: interface.h:747
memset(h->entries, 0, sizeof(h->entries[0])*entries)
clib_error_t * geneve_init(vlib_main_t *vm)
Definition: geneve.c:1090
#define pool_foreach(VAR, POOL, BODY)
Iterate through pool.
Definition: pool.h:443
unformat_function_t unformat_ip4_address
Definition: format.h:70
u32 frp_sw_if_index
The interface.
Definition: fib_types.h:505
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:163
static void vnet_set_geneve_oamframe_bit(geneve_header_t *h, u8 oam)
u8 * rewrite
Definition: geneve.h:82
u32 sw_if_index
Definition: vxlan_gbp.api:39
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:169
vlib_combined_counter_main_t * combined_sw_if_counters
Definition: interface.h:855
Aggregrate type for a prefix.
Definition: fib_types.h:203
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
void adj_unlock(adj_index_t adj_index)
Release a reference counting lock on the adjacency.
Definition: adj.c:252
static clib_error_t * set_ip_geneve_bypass(u32 is_ip6, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: geneve.c:932
unsigned int u32
Definition: types.h:88
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:703
Definition: fib_entry.h:275
unformat_function_t unformat_line_input
Definition: format.h:282
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:168
#define hash_create_mem(elts, key_bytes, value_bytes)
Definition: hash.h:661
#define hash_get(h, key)
Definition: hash.h:249
#define GENEVE_VNI_MASK
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:464
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:269
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:226
u32 encap_fib_index
Definition: geneve.h:106
long ctx[MAX_CONNS]
Definition: main.c:144
static clib_error_t * set_ip4_geneve_bypass(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: geneve.c:976
struct _unformat_input_t unformat_input_t
u32 decap_next_index
Definition: vxlan_gbp.api:37
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:274
#define PREDICT_FALSE(x)
Definition: clib.h:107
static void vnet_set_geneve_version(geneve_header_t *h, u8 version)
vnet_sw_interface_flags_t flags
Definition: interface.h:720
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:854
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:293
An node in the FIB graph.
Definition: fib_node.h:289
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
u32 flags
Definition: vhost_user.h:115
#define ip46_address_is_ip4(ip46)
Definition: ip6_packet.h:88
unformat_function_t unformat_ip6_address
Definition: format.h:91
#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:388
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:144
uword * vtep4
Definition: geneve.h:164
vlib_main_t * vm
Definition: buffer.c:294
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
#define vec_free(V)
Free vector&#39;s memory (no header).
Definition: vec.h:339
ip46_address_t local
Definition: geneve.h:96
vnet_flood_class_t
Definition: interface.h:662
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:277
static void vnet_interface_counter_unlock(vnet_interface_main_t *im)
Definition: interface.h:880
u32 fib_node_index_t
A typedef of a node index.
Definition: fib_types.h:30
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:80
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
uword * geneve4_tunnel_by_key
Definition: geneve.h:159
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:1513
Context passed between object during a back walk.
Definition: fib_node.h:202
#define VLIB_CLI_COMMAND(x,...)
Definition: cli.h:155
static void vnet_interface_counter_lock(vnet_interface_main_t *im)
Definition: interface.h:872
VNET_DEVICE_CLASS(geneve_device_class, static)
u32 sw_if_index
Definition: geneve.h:109
#define ASSERT(truth)
u32 set_int_l2_mode(vlib_main_t *vm, vnet_main_t *vnet_main, u32 mode, u32 sw_if_index, u32 bd_index, l2_bd_port_type_t port_type, u32 shg, u32 xc_sw_if_index)
Set the subinterface to run in l2 or l3 mode.
Definition: l2_input.c:572
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:567
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:130
dpo_proto_t fib_proto_to_dpo(fib_protocol_t fib_proto)
Definition: fib_types.c:237
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)
vnet_main_t * vnet_main
Definition: geneve.h:178
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: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
l2input_main_t l2input_main
Definition: l2_input.c:113
ip46_address_t remote
Definition: geneve.h:97
index_t dpoi_index
the index of objects of that type
Definition: dpo.h:184
A for-us/local path.
Definition: fib_types.h:332
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
#define GENEVE_VNI_SHIFT
static fib_protocol_t fib_ip_proto(bool is_ip6)
Convert from boolean is_ip6 to FIB protocol.
Definition: fib_types.h:80
u64 uword
Definition: types.h:112
uword * geneve6_tunnel_by_key
Definition: geneve.h:160
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
fib_node_index_t fib_entry_index
Definition: geneve.h:121
u32 vni
Definition: vxlan_gbp.api:38
#define DPO_INVALID
An initialiser for DPOs declared on the stack.
Definition: dpo.h:195
#define GENEVE_VERSION
Definition: geneve_packet.h:98
static uword get_decap_next_for_node(u32 node_index, u32 ipv4_set)
Definition: geneve.c:618
static void mcast_shared_remove(ip46_address_t *remote)
Definition: geneve.c:344
unformat_function_t unformat_vlib_node
Definition: node_funcs.h:1173
#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:276
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:629
void dpo_reset(dpo_id_t *dpo)
reset a DPO ID The DPO will be unlocked.
Definition: dpo.c:231
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:271
clib_error_t * vnet_sw_interface_set_flags(vnet_main_t *vnm, u32 sw_if_index, u32 flags)
Definition: interface.c:477
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:137
#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:486
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:59
void vlib_cli_output(vlib_main_t *vm, char *fmt,...)
Definition: cli.c:725
static u16 ip4_header_checksum(ip4_header_t *i)
Definition: ip4_packet.h:246
const ip46_address_t zero_addr
Definition: lookup.c:318
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:233
ip6_address_t dst_address
Definition: ip6_packet.h:378
static uword unformat_check_input(unformat_input_t *i)
Definition: format.h:170
#define MODE_L3
Definition: l2_input.h:205
void vnet_int_geneve_bypass_mode(u32 sw_if_index, u8 is_ip6, u8 is_enable)
Definition: geneve.c:920
static uword pool_elts(void *v)
Number of active elements in a pool.
Definition: pool.h:128