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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 <geneve/geneve.h>
16 #include <vnet/ip/format.h>
17 #include <vnet/fib/fib_entry.h>
18 #include <vnet/fib/fib_table.h>
20 #include <vnet/mfib/mfib_table.h>
21 #include <vnet/adj/adj_mcast.h>
22 #include <vnet/interface.h>
23 #include <vlib/vlib.h>
24 
25 /**
26  * @file
27  * @brief GENEVE.
28  *
29  * GENEVE provides the features needed to allow L2 bridge domains (BDs)
30  * to span multiple servers. This is done by building an L2 overlay on
31  * top of an L3 network underlay using GENEVE tunnels.
32  *
33  * This makes it possible for servers to be co-located in the same data
34  * center or be separated geographically as long as they are reachable
35  * through the underlay L3 network.
36  */
37 
38 
40 
41 u8 *
42 format_geneve_encap_trace (u8 * s, va_list * args)
43 {
44  CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
45  CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
46  geneve_encap_trace_t *t = va_arg (*args, geneve_encap_trace_t *);
47 
48  s = format (s, "GENEVE encap to geneve_tunnel%d vni %d",
49  t->tunnel_index, t->vni);
50  return s;
51 }
52 
53 static u8 *
54 format_decap_next (u8 * s, va_list * args)
55 {
56  u32 next_index = va_arg (*args, u32);
57 
58  switch (next_index)
59  {
60  case GENEVE_INPUT_NEXT_DROP:
61  return format (s, "drop");
62  case GENEVE_INPUT_NEXT_L2_INPUT:
63  return format (s, "l2");
64  default:
65  return format (s, "index %d", next_index);
66  }
67  return s;
68 }
69 
70 u8 *
71 format_geneve_tunnel (u8 * s, va_list * args)
72 {
73  geneve_tunnel_t *t = va_arg (*args, geneve_tunnel_t *);
74  geneve_main_t *ngm = &geneve_main;
75 
76  s = format (s, "[%d] lcl %U rmt %U vni %d fib-idx %d sw-if-idx %d ",
77  t - ngm->tunnels,
80  t->vni, t->encap_fib_index, t->sw_if_index);
81 
82  s = format (s, "encap-dpo-idx %d ", t->next_dpo.dpoi_index);
83  s = format (s, "decap-next-%U ", format_decap_next, t->decap_next_index);
84  s = format (s, "l3-mode %u ", t->l3_mode);
85 
87  s = format (s, "mcast-sw-if-idx %d ", t->mcast_sw_if_index);
88 
89  return s;
90 }
91 
92 static u8 *
93 format_geneve_name (u8 * s, va_list * args)
94 {
95  u32 dev_instance = va_arg (*args, u32);
96  return format (s, "geneve_tunnel%d", dev_instance);
97 }
98 
99 static clib_error_t *
101 {
102  u32 hw_flags = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) ?
104  vnet_hw_interface_set_flags (vnm, hw_if_index, hw_flags);
105 
106  return /* no error */ 0;
107 }
108 
109 static clib_error_t *
111  const u8 * old_address, const u8 * mac_address)
112 {
113  l2input_interface_mac_change (hi->sw_if_index, old_address, mac_address);
114  return (NULL);
115 }
116 
117 /* *INDENT-OFF* */
118 VNET_DEVICE_CLASS (geneve_device_class, static) = {
119  .name = "GENEVE",
120  .format_device_name = format_geneve_name,
121  .format_tx_trace = format_geneve_encap_trace,
122  .admin_up_down_function = geneve_interface_admin_up_down,
123  .mac_addr_change_function = geneve_mac_change,
124 };
125 /* *INDENT-ON* */
126 
127 static u8 *
129 {
130  u32 dev_instance = va_arg (*args, u32);
131  s = format (s, "unimplemented dev %u", dev_instance);
132  return s;
133 }
134 
135 /* *INDENT-OFF* */
136 VNET_HW_INTERFACE_CLASS (geneve_hw_class) = {
137  .name = "GENEVE",
138  .format_header = format_geneve_header_with_length,
139  .build_rewrite = default_build_rewrite,
140 };
141 /* *INDENT-ON* */
142 
143 static void
145 {
146  dpo_id_t dpo = DPO_INVALID;
147  u32 encap_index = ip46_address_is_ip4 (&t->remote) ?
151 
152  fib_entry_contribute_forwarding (t->fib_entry_index, forw_type, &dpo);
153 
154  /* geneve uses the flow hash as the udp source port
155  * hence the packet's hash is unknown at this time.
156  * However, we can still skip single bucket load balance dpo's */
157  while (DPO_LOAD_BALANCE == dpo.dpoi_type)
158  {
160  if (lb->lb_n_buckets > 1)
161  break;
162 
163  dpo_copy (&dpo, load_balance_get_bucket_i (lb, 0));
164  }
165  dpo_stack_from_node (encap_index, &t->next_dpo, &dpo);
166  dpo_reset (&dpo);
167 }
168 
169 static geneve_tunnel_t *
171 {
173  return ((geneve_tunnel_t *) (((char *) node) -
175 }
176 
177 /**
178  * Function definition to backwalk a FIB node -
179  * Here we will restack the new dpo of GENEVE DIP to encap node.
180  */
183 {
186 }
187 
188 /**
189  * Function definition to get a FIB node from its index
190  */
191 static fib_node_t *
193 {
194  geneve_tunnel_t *t;
195  geneve_main_t *vxm = &geneve_main;
196 
197  t = pool_elt_at_index (vxm->tunnels, index);
198 
199  return (&t->node);
200 }
201 
202 /**
203  * Function definition to inform the FIB node that its last lock has gone.
204  */
205 static void
207 {
208  /*
209  * The GENEVE tunnel is a root of the graph. As such
210  * it never has children and thus is never locked.
211  */
212  ASSERT (0);
213 }
214 
215 /*
216  * Virtual function table registered by GENEVE tunnels
217  * for participation in the FIB object graph.
218  */
219 const static fib_node_vft_t geneve_vft = {
221  .fnv_last_lock = geneve_tunnel_last_lock_gone,
222  .fnv_back_walk = geneve_tunnel_back_walk,
223 };
224 
225 
226 #define foreach_copy_field \
227 _(vni) \
228 _(mcast_sw_if_index) \
229 _(encap_fib_index) \
230 _(decap_next_index) \
231 _(local) \
232 _(remote) \
233 _(l3_mode)
234 
235 static int
237 {
238  union
239  {
240  ip4_geneve_header_t *h4;
241  ip6_geneve_header_t *h6;
242  u8 *rw;
243  } r =
244  {
245  .rw = 0};
246  int len = is_ip6 ? sizeof *r.h6 : sizeof *r.h4;
247 #if SUPPORT_OPTIONS_HEADER==1
248  len += t->options_len;
249 #endif
250 
252 
253  udp_header_t *udp;
254  geneve_header_t *geneve;
255  /* Fixed portion of the (outer) ip header */
256  if (!is_ip6)
257  {
258  ip4_header_t *ip = &r.h4->ip4;
259  udp = &r.h4->udp, geneve = &r.h4->geneve;
260  ip->ip_version_and_header_length = 0x45;
261  ip->ttl = 254;
262  ip->protocol = IP_PROTOCOL_UDP;
263 
264  ip->src_address = t->local.ip4;
265  ip->dst_address = t->remote.ip4;
266 
267  /* we fix up the ip4 header length and checksum after-the-fact */
268  ip->checksum = ip4_header_checksum (ip);
269  }
270  else
271  {
272  ip6_header_t *ip = &r.h6->ip6;
273  udp = &r.h6->udp, geneve = &r.h6->geneve;
274  ip->ip_version_traffic_class_and_flow_label =
275  clib_host_to_net_u32 (6 << 28);
276  ip->hop_limit = 255;
277  ip->protocol = IP_PROTOCOL_UDP;
278 
279  ip->src_address = t->local.ip6;
280  ip->dst_address = t->remote.ip6;
281  }
282 
283  /* UDP header, randomize local port on something, maybe? */
284  udp->src_port = clib_host_to_net_u16 (5251);
285  udp->dst_port = clib_host_to_net_u16 (UDP_DST_PORT_geneve);
286 
287  /* GENEVE header */
289 #if SUPPORT_OPTIONS_HEADER==1
290  vnet_set_geneve_options_len (geneve, t->options_len);
291 #else
292  vnet_set_geneve_options_len (geneve, 0);
293 #endif
294  vnet_set_geneve_oamframe_bit (geneve, 0);
295  vnet_set_geneve_critical_bit (geneve, 0);
297 
299 
300  vnet_set_geneve_vni (geneve, t->vni);
301 
302  t->rewrite = r.rw;
303  return (0);
304 }
305 
306 static bool
308  u32 decap_next_index)
309 {
310  vlib_main_t *vm = vxm->vlib_main;
311  u32 input_idx =
312  (!is_ip6) ? geneve4_input_node.index : geneve6_input_node.index;
314 
315  return decap_next_index < r->n_next_nodes;
316 }
317 
318 typedef union
319 {
320  struct
321  {
322  fib_node_index_t mfib_entry_index;
323  adj_index_t mcast_adj_index;
324  };
325  u64 as_u64;
326 } __clib_packed mcast_shared_t;
327 
328 static inline mcast_shared_t
329 mcast_shared_get (ip46_address_t * ip)
330 {
333  ALWAYS_ASSERT (p);
334  return (mcast_shared_t)
335  {
336  .as_u64 = *p};
337 }
338 
339 static inline void
340 mcast_shared_add (ip46_address_t * remote,
341  fib_node_index_t mfei, adj_index_t ai)
342 {
343  mcast_shared_t new_ep = {
344  .mcast_adj_index = ai,
345  .mfib_entry_index = mfei,
346  };
347 
348  hash_set_mem_alloc (&geneve_main.mcast_shared, remote, new_ep.as_u64);
349 }
350 
351 static inline void
352 mcast_shared_remove (ip46_address_t * remote)
353 {
354  mcast_shared_t ep = mcast_shared_get (remote);
355 
356  adj_unlock (ep.mcast_adj_index);
357  mfib_table_entry_delete_index (ep.mfib_entry_index, MFIB_SOURCE_GENEVE);
358 
360 }
361 
364 {
365  geneve_main_t *vxm = &geneve_main;
366  geneve_tunnel_t *t = 0;
367  vnet_main_t *vnm = vxm->vnet_main;
368  uword *p;
369  u32 hw_if_index = ~0;
370  u32 sw_if_index = ~0;
371  int rv;
372  geneve4_tunnel_key_t key4;
373  geneve6_tunnel_key_t key6;
374  u32 is_ip6 = a->is_ip6;
375 
376  if (!is_ip6)
377  {
378  key4.remote = a->remote.ip4.as_u32;
379  key4.vni = clib_host_to_net_u32 (a->vni << GENEVE_VNI_SHIFT);
380  p = hash_get (vxm->geneve4_tunnel_by_key, key4.as_u64);
381  }
382  else
383  {
384  key6.remote = a->remote.ip6;
385  key6.vni = clib_host_to_net_u32 (a->vni << GENEVE_VNI_SHIFT);
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  clib_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 
426  if (a->l3_mode)
427  {
428  u32 t_idx = t - vxm->tunnels;
429  u8 address[6] =
430  { 0xd0, 0x0b, 0xee, 0xd0, (u8) (t_idx >> 8), (u8) t_idx };
432  ethernet_register_interface (vnm, geneve_device_class.index,
433  t_idx,
434  address, &hw_if_index, 0);
435  if (error)
436  {
438  return VNET_API_ERROR_INVALID_REGISTRATION;
439  }
440  }
441  else
442  {
443  hw_if_index = vnet_register_interface
444  (vnm, geneve_device_class.index, t - vxm->tunnels,
445  geneve_hw_class.index, t - vxm->tunnels);
446  }
447 
448  hi = vnet_get_hw_interface (vnm, hw_if_index);
449 
450  /* Set geneve tunnel output node */
451  u32 encap_index = !is_ip6 ?
453  vnet_set_interface_output_node (vnm, hw_if_index, encap_index);
454 
455  t->hw_if_index = hw_if_index;
456  t->sw_if_index = sw_if_index = hi->sw_if_index;
457 
459  ~0);
461 
462  /* setup l2 input config with l2 feature and bd 0 to drop packet */
464  l2im->configs[sw_if_index].feature_bitmap = L2INPUT_FEAT_DROP;
465  l2im->configs[sw_if_index].bd_index = 0;
466 
471 
473  fib_prefix_t tun_remote_pfx;
475 
476  fib_prefix_from_ip46_addr (&t->remote, &tun_remote_pfx);
478  {
479  /* Unicast tunnel -
480  * source the FIB entry for the tunnel's destination
481  * and become a child thereof. The tunnel will then get poked
482  * when the forwarding for the entry updates, and the tunnel can
483  * re-stack accordingly
484  */
487  &tun_remote_pfx,
489  t - vxm->tunnels,
490  &t->sibling_index);
492  }
493  else
494  {
495  /* Multicast tunnel -
496  * as the same mcast group can be used for mutiple mcast tunnels
497  * with different VNIs, create the output fib adjecency only if
498  * it does not already exist
499  */
501 
502  if (vtep_addr_ref (&vxm->vtep_table,
503  t->encap_fib_index, &t->remote) == 1)
504  {
505  fib_node_index_t mfei;
506  adj_index_t ai;
508  .frp_proto = fib_proto_to_dpo (fp),
509  .frp_addr = zero_addr,
510  .frp_sw_if_index = 0xffffffff,
511  .frp_fib_index = ~0,
512  .frp_weight = 1,
513  .frp_flags = FIB_ROUTE_PATH_LOCAL,
514  .frp_mitf_flags = MFIB_ITF_FLAG_FORWARD,
515  };
516  const mfib_prefix_t mpfx = {
517  .fp_proto = fp,
518  .fp_len = (is_ip6 ? 128 : 32),
519  .fp_grp_addr = tun_remote_pfx.fp_addr,
520  };
521 
522  /*
523  * Setup the (*,G) to receive traffic on the mcast group
524  * - the forwarding interface is for-us
525  * - the accepting interface is that from the API
526  */
528  &mpfx, MFIB_SOURCE_GENEVE, &path);
529 
530  path.frp_sw_if_index = a->mcast_sw_if_index;
531  path.frp_flags = FIB_ROUTE_PATH_FLAG_NONE;
532  path.frp_mitf_flags = MFIB_ITF_FLAG_ACCEPT;
534  &mpfx,
536 
537  /*
538  * Create the mcast adjacency to send traffic to the group
539  */
540  ai = adj_mcast_add_or_lock (fp,
541  fib_proto_to_link (fp),
542  a->mcast_sw_if_index);
543 
544  /*
545  * create a new end-point
546  */
547  mcast_shared_add (&t->remote, mfei, ai);
548  }
549 
550  dpo_id_t dpo = DPO_INVALID;
551  mcast_shared_t ep = mcast_shared_get (&t->remote);
552 
553  /* Stack shared mcast remote mac addr rewrite on encap */
555  fib_proto_to_dpo (fp), ep.mcast_adj_index);
556 
557  dpo_stack_from_node (encap_index, &t->next_dpo, &dpo);
558  dpo_reset (&dpo);
559  flood_class = VNET_FLOOD_CLASS_TUNNEL_MASTER;
560  }
561 
563  flood_class;
564  }
565  else
566  {
567  /* deleting a tunnel: tunnel must exist */
568  if (!p)
569  return VNET_API_ERROR_NO_SUCH_ENTRY;
570 
571  t = pool_elt_at_index (vxm->tunnels, p[0]);
572 
574  vnet_sw_interface_set_flags (vnm, t->sw_if_index, 0 /* down */ );
577 
578  /* make sure tunnel is removed from l2 bd or xconnect */
579  set_int_l2_mode (vxm->vlib_main, vnm, MODE_L3, t->sw_if_index, 0,
580  L2_BD_PORT_TYPE_NORMAL, 0, 0);
581 
582  if (t->l3_mode)
584  else
586 
588 
589  if (!is_ip6)
590  hash_unset (vxm->geneve4_tunnel_by_key, key4.as_u64);
591  else
593 
595  {
598  }
599  else if (vtep_addr_unref (&vxm->vtep_table,
600  t->encap_fib_index, &t->remote) == 0)
601  {
603  }
604 
605  fib_node_deinit (&t->node);
606  vec_free (t->rewrite);
607  pool_put (vxm->tunnels, t);
608  }
609 
610  if (sw_if_indexp)
611  *sw_if_indexp = sw_if_index;
612 
613  if (a->is_add)
614  {
615  /* register udp ports */
616  if (!is_ip6 && !udp_is_valid_dst_port (UDP_DST_PORT_geneve, 1))
617  udp_register_dst_port (vxm->vlib_main, UDP_DST_PORT_geneve,
618  geneve4_input_node.index, 1);
619  if (is_ip6 && !udp_is_valid_dst_port (UDP_DST_PORT_geneve6, 0))
620  udp_register_dst_port (vxm->vlib_main, UDP_DST_PORT_geneve6,
621  geneve6_input_node.index, 0);
622  }
623 
624  return 0;
625 }
626 
627 static uword
629 {
630  geneve_main_t *vxm = &geneve_main;
631  vlib_main_t *vm = vxm->vlib_main;
632  uword input_node = (ipv4_set) ? geneve4_input_node.index :
633  geneve6_input_node.index;
634 
635  return vlib_node_add_next (vm, input_node, node_index);
636 }
637 
638 static uword
639 unformat_decap_next (unformat_input_t * input, va_list * args)
640 {
641  u32 *result = va_arg (*args, u32 *);
642  u32 ipv4_set = va_arg (*args, int);
643  geneve_main_t *vxm = &geneve_main;
644  vlib_main_t *vm = vxm->vlib_main;
645  u32 node_index;
646  u32 tmp;
647 
648  if (unformat (input, "l2"))
649  *result = GENEVE_INPUT_NEXT_L2_INPUT;
650  else if (unformat (input, "node %U", unformat_vlib_node, vm, &node_index))
651  *result = get_decap_next_for_node (node_index, ipv4_set);
652  else if (unformat (input, "%d", &tmp))
653  *result = tmp;
654  else
655  return 0;
656  return 1;
657 }
658 
659 static clib_error_t *
661  unformat_input_t * input,
662  vlib_cli_command_t * cmd)
663 {
664  unformat_input_t _line_input, *line_input = &_line_input;
665  ip46_address_t local, remote;
666  u8 is_add = 1;
667  u8 local_set = 0;
668  u8 remote_set = 0;
669  u8 grp_set = 0;
670  u8 ipv4_set = 0;
671  u8 ipv6_set = 0;
672  u8 l3_mode = 0;
673  u32 encap_fib_index = 0;
674  u32 mcast_sw_if_index = ~0;
675  u32 decap_next_index = GENEVE_INPUT_NEXT_L2_INPUT;
676  u32 vni = 0;
677  u32 tmp;
678  int rv;
680  u32 tunnel_sw_if_index;
681  clib_error_t *error = NULL;
682 
683  /* Cant "universally zero init" (={0}) due to GCC bug 53119 */
684  clib_memset (&local, 0, sizeof local);
685  clib_memset (&remote, 0, sizeof remote);
686 
687  /* Get a line of input. */
688  if (!unformat_user (input, unformat_line_input, line_input))
689  return 0;
690 
691  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
692  {
693  if (unformat (line_input, "del"))
694  {
695  is_add = 0;
696  }
697  else if (unformat (line_input, "local %U",
698  unformat_ip4_address, &local.ip4))
699  {
700  local_set = 1;
701  ipv4_set = 1;
702  }
703  else if (unformat (line_input, "remote %U",
704  unformat_ip4_address, &remote.ip4))
705  {
706  remote_set = 1;
707  ipv4_set = 1;
708  }
709  else if (unformat (line_input, "local %U",
710  unformat_ip6_address, &local.ip6))
711  {
712  local_set = 1;
713  ipv6_set = 1;
714  }
715  else if (unformat (line_input, "remote %U",
716  unformat_ip6_address, &remote.ip6))
717  {
718  remote_set = 1;
719  ipv6_set = 1;
720  }
721  else if (unformat (line_input, "group %U %U",
722  unformat_ip4_address, &remote.ip4,
725  {
726  grp_set = remote_set = 1;
727  ipv4_set = 1;
728  }
729  else if (unformat (line_input, "group %U %U",
730  unformat_ip6_address, &remote.ip6,
733  {
734  grp_set = remote_set = 1;
735  ipv6_set = 1;
736  }
737  else if (unformat (line_input, "encap-vrf-id %d", &tmp))
738  {
739  encap_fib_index = fib_table_find (fib_ip_proto (ipv6_set), tmp);
740  if (encap_fib_index == ~0)
741  {
742  error =
743  clib_error_return (0, "nonexistent encap-vrf-id %d", tmp);
744  goto done;
745  }
746  }
747  else if (unformat (line_input, "decap-next %U", unformat_decap_next,
748  &decap_next_index, ipv4_set))
749  ;
750  else if (unformat (line_input, "vni %d", &vni))
751  {
752  if (vni >> 24)
753  {
754  error = clib_error_return (0, "vni %d out of range", vni);
755  goto done;
756  }
757  }
758  else if (unformat (line_input, "l3-mode"))
759  {
760  l3_mode = 1;
761  }
762  else
763  {
764  error = clib_error_return (0, "parse error: '%U'",
765  format_unformat_error, line_input);
766  goto done;
767  }
768  }
769 
770  if (local_set == 0)
771  {
772  error = clib_error_return (0, "tunnel local address not specified");
773  goto done;
774  }
775 
776  if (remote_set == 0)
777  {
778  error = clib_error_return (0, "tunnel remote address not specified");
779  goto done;
780  }
781 
782  if (grp_set && !ip46_address_is_multicast (&remote))
783  {
784  error = clib_error_return (0, "tunnel group address not multicast");
785  goto done;
786  }
787 
788  if (grp_set == 0 && ip46_address_is_multicast (&remote))
789  {
790  error = clib_error_return (0, "remote address must be unicast");
791  goto done;
792  }
793 
794  if (grp_set && mcast_sw_if_index == ~0)
795  {
796  error = clib_error_return (0, "tunnel nonexistent multicast device");
797  goto done;
798  }
799 
800  if (ipv4_set && ipv6_set)
801  {
802  error = clib_error_return (0, "both IPv4 and IPv6 addresses specified");
803  goto done;
804  }
805 
806  if (ip46_address_cmp (&local, &remote) == 0)
807  {
808  error =
809  clib_error_return (0, "local and remote addresses are identical");
810  goto done;
811  }
812 
813  if (decap_next_index == ~0)
814  {
815  error = clib_error_return (0, "next node not found");
816  goto done;
817  }
818 
819  if (vni == 0)
820  {
821  error = clib_error_return (0, "vni not specified");
822  goto done;
823  }
824 
825  clib_memset (a, 0, sizeof (*a));
826 
827  a->is_add = is_add;
828  a->is_ip6 = ipv6_set;
829 
830 #define _(x) a->x = x;
832 #undef _
833 
834  rv = vnet_geneve_add_del_tunnel (a, &tunnel_sw_if_index);
835 
836  switch (rv)
837  {
838  case 0:
839  if (is_add)
841  vnet_get_main (), tunnel_sw_if_index);
842  break;
843 
844  case VNET_API_ERROR_TUNNEL_EXIST:
845  error = clib_error_return (0, "tunnel already exists...");
846  goto done;
847 
848  case VNET_API_ERROR_NO_SUCH_ENTRY:
849  error = clib_error_return (0, "tunnel does not exist...");
850  goto done;
851 
852  default:
854  (0, "vnet_geneve_add_del_tunnel returned %d", rv);
855  goto done;
856  }
857 
858 done:
859  unformat_free (line_input);
860 
861  return error;
862 }
863 
864 /*?
865  * Add or delete a GENEVE Tunnel.
866  *
867  * GENEVE provides the features needed to allow L2 bridge domains (BDs)
868  * to span multiple servers. This is done by building an L2 overlay on
869  * top of an L3 network underlay using GENEVE tunnels.
870  *
871  * This makes it possible for servers to be co-located in the same data
872  * center or be separated geographically as long as they are reachable
873  * through the underlay L3 network.
874  *
875  * You can refer to this kind of L2 overlay bridge domain as a GENEVE
876  * segment.
877  *
878  * @cliexpar
879  * Example of how to create a GENEVE Tunnel:
880  * @cliexcmd{create geneve tunnel local 10.0.3.1 remote 10.0.3.3 vni 13 encap-vrf-id 7}
881  * Example of how to delete a GENEVE Tunnel:
882  * @cliexcmd{create geneve tunnel local 10.0.3.1 remote 10.0.3.3 vni 13 del}
883  ?*/
884 /* *INDENT-OFF* */
886  .path = "create geneve tunnel",
887  .short_help =
888  "create geneve tunnel local <local-vtep-addr>"
889  " {remote <remote-vtep-addr>|group <mcast-vtep-addr> <intf-name>} vni <nn>"
890  " [encap-vrf-id <nn>] [decap-next [l2|node <name>]] [l3-mode] [del]",
892 };
893 /* *INDENT-ON* */
894 
895 static clib_error_t *
897  unformat_input_t * input,
898  vlib_cli_command_t * cmd)
899 {
900  geneve_main_t *vxm = &geneve_main;
901  geneve_tunnel_t *t;
902 
903  if (pool_elts (vxm->tunnels) == 0)
904  vlib_cli_output (vm, "No geneve tunnels configured...");
905 
906  pool_foreach (t, vxm->tunnels)
907  {
909  }
910 
911  return 0;
912 }
913 
914 /*?
915  * Display all the GENEVE Tunnel entries.
916  *
917  * @cliexpar
918  * Example of how to display the GENEVE Tunnel entries:
919  * @cliexstart{show geneve tunnel}
920  * [0] local 10.0.3.1 remote 10.0.3.3 vni 13 encap_fib_index 0 sw_if_index 5 decap_next l2
921  * @cliexend
922  ?*/
923 /* *INDENT-OFF* */
925  .path = "show geneve tunnel",
926  .short_help = "show geneve tunnel",
927  .function = show_geneve_tunnel_command_fn,
928 };
929 /* *INDENT-ON* */
930 
931 
932 void
934 {
935  if (is_ip6)
936  vnet_feature_enable_disable ("ip6-unicast", "ip6-geneve-bypass",
937  sw_if_index, is_enable, 0, 0);
938  else
939  vnet_feature_enable_disable ("ip4-unicast", "ip4-geneve-bypass",
940  sw_if_index, is_enable, 0, 0);
941 }
942 
943 
944 static clib_error_t *
946  unformat_input_t * input, vlib_cli_command_t * cmd)
947 {
948  unformat_input_t _line_input, *line_input = &_line_input;
949  vnet_main_t *vnm = vnet_get_main ();
950  clib_error_t *error = 0;
951  u32 sw_if_index, is_enable;
952 
953  sw_if_index = ~0;
954  is_enable = 1;
955 
956  if (!unformat_user (input, unformat_line_input, line_input))
957  return 0;
958 
959  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
960  {
961  if (unformat_user
962  (line_input, unformat_vnet_sw_interface, vnm, &sw_if_index))
963  ;
964  else if (unformat (line_input, "del"))
965  is_enable = 0;
966  else
967  {
968  error = unformat_parse_error (line_input);
969  goto done;
970  }
971  }
972 
973  if (~0 == sw_if_index)
974  {
975  error = clib_error_return (0, "unknown interface `%U'",
976  format_unformat_error, line_input);
977  goto done;
978  }
979 
981 
982 done:
983  unformat_free (line_input);
984 
985  return error;
986 }
987 
988 static clib_error_t *
990  unformat_input_t * input, vlib_cli_command_t * cmd)
991 {
992  return set_ip_geneve_bypass (0, input, cmd);
993 }
994 
995 /*?
996  * This command adds the 'ip4-geneve-bypass' graph node for a given interface.
997  * By adding the IPv4 geneve-bypass graph node to an interface, the node checks
998  * for and validate input geneve packet and bypass ip4-lookup, ip4-local,
999  * ip4-udp-lookup nodes to speedup geneve packet forwarding. This node will
1000  * cause extra overhead to for non-geneve packets which is kept at a minimum.
1001  *
1002  * @cliexpar
1003  * @parblock
1004  * Example of graph node before ip4-geneve-bypass is enabled:
1005  * @cliexstart{show vlib graph ip4-geneve-bypass}
1006  * Name Next Previous
1007  * ip4-geneve-bypass error-drop [0]
1008  * geneve4-input [1]
1009  * ip4-lookup [2]
1010  * @cliexend
1011  *
1012  * Example of how to enable ip4-geneve-bypass on an interface:
1013  * @cliexcmd{set interface ip geneve-bypass GigabitEthernet2/0/0}
1014  *
1015  * Example of graph node after ip4-geneve-bypass is enabled:
1016  * @cliexstart{show vlib graph ip4-geneve-bypass}
1017  * Name Next Previous
1018  * ip4-geneve-bypass error-drop [0] ip4-input
1019  * geneve4-input [1] ip4-input-no-checksum
1020  * ip4-lookup [2]
1021  * @cliexend
1022  *
1023  * Example of how to display the feature enabed on an interface:
1024  * @cliexstart{show ip interface features GigabitEthernet2/0/0}
1025  * IP feature paths configured on GigabitEthernet2/0/0...
1026  * ...
1027  * ipv4 unicast:
1028  * ip4-geneve-bypass
1029  * ip4-lookup
1030  * ...
1031  * @cliexend
1032  *
1033  * Example of how to disable ip4-geneve-bypass on an interface:
1034  * @cliexcmd{set interface ip geneve-bypass GigabitEthernet2/0/0 del}
1035  * @endparblock
1036 ?*/
1037 /* *INDENT-OFF* */
1039  .path = "set interface ip geneve-bypass",
1040  .function = set_ip4_geneve_bypass,
1041  .short_help = "set interface ip geneve-bypass <interface> [del]",
1042 };
1043 /* *INDENT-ON* */
1044 
1045 static clib_error_t *
1047  unformat_input_t * input, vlib_cli_command_t * cmd)
1048 {
1049  return set_ip_geneve_bypass (1, input, cmd);
1050 }
1051 
1052 /*?
1053  * This command adds the 'ip6-geneve-bypass' graph node for a given interface.
1054  * By adding the IPv6 geneve-bypass graph node to an interface, the node checks
1055  * for and validate input geneve packet and bypass ip6-lookup, ip6-local,
1056  * ip6-udp-lookup nodes to speedup geneve packet forwarding. This node will
1057  * cause extra overhead to for non-geneve packets which is kept at a minimum.
1058  *
1059  * @cliexpar
1060  * @parblock
1061  * Example of graph node before ip6-geneve-bypass is enabled:
1062  * @cliexstart{show vlib graph ip6-geneve-bypass}
1063  * Name Next Previous
1064  * ip6-geneve-bypass error-drop [0]
1065  * geneve6-input [1]
1066  * ip6-lookup [2]
1067  * @cliexend
1068  *
1069  * Example of how to enable ip6-geneve-bypass on an interface:
1070  * @cliexcmd{set interface ip6 geneve-bypass GigabitEthernet2/0/0}
1071  *
1072  * Example of graph node after ip6-geneve-bypass is enabled:
1073  * @cliexstart{show vlib graph ip6-geneve-bypass}
1074  * Name Next Previous
1075  * ip6-geneve-bypass error-drop [0] ip6-input
1076  * geneve6-input [1] ip4-input-no-checksum
1077  * ip6-lookup [2]
1078  * @cliexend
1079  *
1080  * Example of how to display the feature enabed on an interface:
1081  * @cliexstart{show ip interface features GigabitEthernet2/0/0}
1082  * IP feature paths configured on GigabitEthernet2/0/0...
1083  * ...
1084  * ipv6 unicast:
1085  * ip6-geneve-bypass
1086  * ip6-lookup
1087  * ...
1088  * @cliexend
1089  *
1090  * Example of how to disable ip6-geneve-bypass on an interface:
1091  * @cliexcmd{set interface ip6 geneve-bypass GigabitEthernet2/0/0 del}
1092  * @endparblock
1093 ?*/
1094 /* *INDENT-OFF* */
1096  .path = "set interface ip6 geneve-bypass",
1097  .function = set_ip6_geneve_bypass,
1098  .short_help = "set interface ip6 geneve-bypass <interface> [del]",
1099 };
1100 /* *INDENT-ON* */
1101 
1102 clib_error_t *
1104 {
1105  geneve_main_t *vxm = &geneve_main;
1106 
1107  vxm->vnet_main = vnet_get_main ();
1108  vxm->vlib_main = vm;
1109 
1110  /* initialize the ip6 hash */
1112  sizeof (geneve6_tunnel_key_t),
1113  sizeof (uword));
1114  vxm->vtep_table = vtep_table_create ();
1115  vxm->mcast_shared = hash_create_mem (0,
1116  sizeof (ip46_address_t),
1117  sizeof (mcast_shared_t));
1118 
1120 
1121  return 0;
1122 }
1123 
1125 
1126 /*
1127  * fd.io coding-style-patch-verification: ON
1128  *
1129  * Local Variables:
1130  * eval: (c-set-style "gnu")
1131  * End:
1132  */
geneve_tunnel_t::l3_mode
u8 l3_mode
Definition: geneve.h:142
geneve_main_t::tunnel_index_by_sw_if_index
u32 * tunnel_index_by_sw_if_index
Definition: geneve.h:182
vlib.h
FIB_NODE_TYPE_GENEVE_TUNNEL
@ FIB_NODE_TYPE_GENEVE_TUNNEL
Definition: fib_node.h:45
tmp
u32 * tmp
Definition: interface_output.c:1078
geneve_main_t::vnet_main
vnet_main_t * vnet_main
Definition: geneve.h:186
vnet_set_geneve_protocol
static void vnet_set_geneve_protocol(geneve_header_t *h, u16 protocol)
Definition: geneve_packet.h:219
geneve_tunnel_t::mcast_sw_if_index
u32 mcast_sw_if_index
Definition: geneve.h:110
fib_entry.h
udp_header_t::src_port
u16 src_port
Definition: udp_packet.h:48
geneve_main_t::geneve4_tunnel_by_key
uword * geneve4_tunnel_by_key
Definition: geneve.h:171
load_balance_t_::lb_n_buckets
u16 lb_n_buckets
number of buckets in the load-balance.
Definition: load_balance.h:116
geneve6_input_node
vlib_node_registration_t geneve6_input_node
(constructor) VLIB_REGISTER_NODE (geneve6_input_node)
Definition: decap.c:834
geneve_tunnel_t::node
fib_node_t node
Linkage into the FIB object graph.
Definition: geneve.h:125
vnet_sw_interface_set_flags
clib_error_t * vnet_sw_interface_set_flags(vnet_main_t *vnm, u32 sw_if_index, vnet_sw_interface_flags_t flags)
Definition: interface.c:523
dpo_id_t_::dpoi_index
index_t dpoi_index
the index of objects of that type
Definition: dpo.h:190
DPO_INVALID
#define DPO_INVALID
An initialiser for DPOs declared on the stack.
Definition: dpo.h:204
unformat_user
uword unformat_user(unformat_input_t *input, unformat_function_t *func,...)
Definition: unformat.c:989
vtep_table_create
static vtep_table_t vtep_table_create()
Definition: vtep.h:69
geneve_tunnel_t::local
ip46_address_t local
Definition: geneve.h:106
mcast_shared_add
static void mcast_shared_add(ip46_address_t *remote, fib_node_index_t mfei, adj_index_t ai)
Definition: geneve.c:340
vnet_sw_interface_t
Definition: interface.h:868
fib_ip_proto
static fib_protocol_t fib_ip_proto(bool is_ip6)
Convert from boolean is_ip6 to FIB protocol.
Definition: fib_types.h:79
geneve.h
vnet_flood_class_t
vnet_flood_class_t
Definition: interface.h:813
fib_node_back_walk_rc_t
enum fib_node_back_walk_rc_t_ fib_node_back_walk_rc_t
Return code from a back walk function.
vlib_node_add_next
static uword vlib_node_add_next(vlib_main_t *vm, uword node, uword next_node)
Definition: node_funcs.h:1177
set_interface_ip_geneve_bypass_command
static vlib_cli_command_t set_interface_ip_geneve_bypass_command
(constructor) VLIB_CLI_COMMAND (set_interface_ip_geneve_bypass_command)
Definition: geneve.c:1038
l2input_main
l2input_main_t l2input_main
Definition: l2_input_node.c:78
MFIB_SOURCE_GENEVE
@ MFIB_SOURCE_GENEVE
Definition: mfib_types.h:172
zero_addr
const ip46_address_t zero_addr
#include <vnet/feature/feature.h>
Definition: lookup.c:182
vnet_geneve_add_del_tunnel
int vnet_geneve_add_del_tunnel(vnet_geneve_add_del_tunnel_args_t *a, u32 *sw_if_indexp)
Definition: geneve.c:363
next_index
nat44_ei_hairpin_src_next_t next_index
Definition: nat44_ei_hairpinning.c:412
l2input_main_t
Definition: l2_input.h:83
geneve_rewrite
static int geneve_rewrite(geneve_tunnel_t *t, bool is_ip6)
Definition: geneve.c:236
geneve_tunnel_t::rewrite
u8 * rewrite
Definition: geneve.h:92
get_decap_next_for_node
static uword get_decap_next_for_node(u32 node_index, u32 ipv4_set)
Definition: geneve.c:628
l2_input_config_t::bd_index
u16 bd_index
Definition: l2_input.h:51
ip46_address_is_multicast
static uword ip46_address_is_multicast(const ip46_address_t *a)
Definition: ip46_address.h:154
dpo_id_t_::dpoi_type
dpo_type_t dpoi_type
the type
Definition: dpo.h:178
unformat_line_input
unformat_function_t unformat_line_input
Definition: format.h:275
pool_elt_at_index
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:553
MFIB_ITF_FLAG_ACCEPT
@ MFIB_ITF_FLAG_ACCEPT
Definition: mfib_types.h:152
show_geneve_tunnel_command_fn
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:896
fib_entry_untrack
void fib_entry_untrack(fib_node_index_t fei, u32 sibling)
Stop tracking a FIB entry.
Definition: fib_entry_track.c:79
geneve_decap_next_is_valid
static bool geneve_decap_next_is_valid(geneve_main_t *vxm, u32 is_ip6, u32 decap_next_index)
Definition: geneve.c:307
VNET_HW_INTERFACE_CLASS
VNET_HW_INTERFACE_CLASS(geneve_hw_class)
pool_get_aligned
#define pool_get_aligned(P, E, A)
Allocate an object E from a pool P with alignment A.
Definition: pool.h:249
geneve_tunnel_t::sw_if_index
u32 sw_if_index
Definition: geneve.h:119
mfib_prefix_t_
Aggregate type for a prefix.
Definition: mfib_types.h:24
adj_mcast_add_or_lock
adj_index_t adj_mcast_add_or_lock(fib_protocol_t proto, vnet_link_t link_type, u32 sw_if_index)
Mcast Adjacency.
Definition: adj_mcast.c:51
node
vlib_main_t vlib_node_runtime_t * node
Definition: nat44_ei.c:3047
path
vl_api_fib_path_t path
Definition: mfib_types.api:44
ip46_address_cmp
static int ip46_address_cmp(const ip46_address_t *ip46_1, const ip46_address_t *ip46_2)
Definition: ip46_address.h:80
fib_node_vft_t_
A FIB graph nodes virtual function table.
Definition: fib_node.h:288
vni
u32 vni
Definition: flow_types.api:160
mfib_table_entry_delete_index
void mfib_table_entry_delete_index(fib_node_index_t mfib_entry_index, mfib_source_t source)
Delete a FIB entry.
Definition: mfib_table.c:517
adj_mcast.h
ip46_address_is_ip4
static u8 ip46_address_is_ip4(const ip46_address_t *ip46)
Definition: ip46_address.h:55
clib_error_return
#define clib_error_return(e, args...)
Definition: error.h:99
u8
#define u8
Padding.
Definition: clib.h:121
vlib_cli_command_t::path
char * path
Definition: cli.h:96
l2input_interface_mac_change
void l2input_interface_mac_change(u32 sw_if_index, const u8 *old_address, const u8 *new_address)
Definition: l2_input.c:201
adj_unlock
void adj_unlock(adj_index_t adj_index)
Release a reference counting lock on the adjacency.
Definition: adj.c:358
fib_table.h
geneve_encap_trace_t
Definition: geneve.h:80
VNET_SW_INTERFACE_FLAG_ADMIN_UP
@ VNET_SW_INTERFACE_FLAG_ADMIN_UP
Definition: interface.h:843
pool_put
#define pool_put(P, E)
Free an object E in pool P.
Definition: pool.h:305
geneve4_input_node
vlib_node_registration_t geneve4_input_node
(constructor) VLIB_REGISTER_NODE (geneve4_input_node)
Definition: decap.c:816
geneve6_encap_node
vlib_node_registration_t geneve6_encap_node
(constructor) VLIB_REGISTER_NODE (geneve6_encap_node)
Definition: encap.c:561
unformat_parse_error
#define unformat_parse_error(input)
Definition: format.h:261
vm
vlib_main_t * vm
X-connect all packets from the HOST to the PHY.
Definition: nat44_ei.c:3047
format_geneve_name
static u8 * format_geneve_name(u8 *s, va_list *args)
Definition: geneve.c:93
geneve_main
geneve_main_t geneve_main
Definition: geneve.c:39
node_index
node node_index
Definition: interface_output.c:420
vnet_get_sw_interface
static vnet_sw_interface_t * vnet_get_sw_interface(vnet_main_t *vnm, u32 sw_if_index)
Definition: interface_funcs.h:58
VNET_HW_INTERFACE_FLAG_LINK_UP
@ VNET_HW_INTERFACE_FLAG_LINK_UP
Definition: interface.h:509
vnet_set_geneve_critical_bit
static void vnet_set_geneve_critical_bit(geneve_header_t *h, u8 critical_opts)
Definition: geneve_packet.h:205
fib_prefix_from_ip46_addr
void fib_prefix_from_ip46_addr(const ip46_address_t *addr, fib_prefix_t *pfx)
Host prefix from ip.
Definition: fib_types.c:81
vnet_set_geneve_vni
static void vnet_set_geneve_vni(geneve_header_t *h, u32 vni)
Definition: geneve_packet.h:151
hi
vl_api_ip4_address_t hi
Definition: arp.api:37
clib_error_report
#define clib_error_report(e)
Definition: error.h:113
unformat_input_t
struct _unformat_input_t unformat_input_t
GENEVE_VERSION
#define GENEVE_VERSION
Definition: geneve_packet.h:98
r
vnet_hw_if_output_node_runtime_t * r
Definition: interface_output.c:1071
udp_header_t
Definition: udp_packet.h:45
ip4_header_t
Definition: ip4_packet.h:87
error
Definition: cJSON.c:88
foreach_copy_field
#define foreach_copy_field
Definition: geneve.c:226
fib_entry_contribute_forwarding
void fib_entry_contribute_forwarding(fib_node_index_t fib_entry_index, fib_forward_chain_type_t fct, dpo_id_t *dpo)
Definition: fib_entry.c:437
geneve_add_del_tunnel_command_fn
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:660
vtep_addr_ref
uword vtep_addr_ref(vtep_table_t *t, u32 fib_index, ip46_address_t *ip)
Definition: vtep.c:19
geneve_main_t
Definition: geneve.h:165
vnet_sw_interface_t::flags
vnet_sw_interface_flags_t flags
Definition: interface.h:872
VNET_FLOOD_CLASS_TUNNEL_NORMAL
@ VNET_FLOOD_CLASS_TUNNEL_NORMAL
Definition: interface.h:821
unformat
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:978
geneve_tunnel_t::vni
u32 vni
Definition: geneve.h:98
hash_set
#define hash_set(h, key, value)
Definition: hash.h:255
geneve_mac_change
static clib_error_t * geneve_mac_change(vnet_hw_interface_t *hi, const u8 *old_address, const u8 *mac_address)
Definition: geneve.c:110
create_geneve_tunnel_command
static vlib_cli_command_t create_geneve_tunnel_command
(constructor) VLIB_CLI_COMMAND (create_geneve_tunnel_command)
Definition: geneve.c:885
FIB_FORW_CHAIN_TYPE_UNICAST_IP4
@ FIB_FORW_CHAIN_TYPE_UNICAST_IP4
Contribute an object that is to be used to forward IP4 packets.
Definition: fib_types.h:108
vnet_set_interface_output_node
void vnet_set_interface_output_node(vnet_main_t *vnm, u32 hw_if_index, u32 node_index)
Set interface output node - for interface registered without its output/tx nodes created because its ...
Definition: interface_output.c:1260
fib_entry_track
fib_node_index_t fib_entry_track(u32 fib_index, const fib_prefix_t *prefix, fib_node_type_t child_type, index_t child_index, u32 *sibling)
Trackers are used on FIB entries by objects that which to track the changing state of the entry.
Definition: fib_entry_track.c:49
GENEVE_VNI_SHIFT
#define GENEVE_VNI_SHIFT
Definition: geneve_packet.h:124
STRUCT_OFFSET_OF
#define STRUCT_OFFSET_OF(t, f)
Definition: clib.h:73
vnet_geneve_add_del_tunnel_args_t
Definition: geneve.h:205
pool_foreach
#define pool_foreach(VAR, POOL)
Iterate through pool.
Definition: pool.h:534
set_ip6_geneve_bypass
static clib_error_t * set_ip6_geneve_bypass(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: geneve.c:1046
vnet_int_geneve_bypass_mode
void vnet_int_geneve_bypass_mode(u32 sw_if_index, u8 is_ip6, u8 is_enable)
Definition: geneve.c:933
unformat_free
static void unformat_free(unformat_input_t *i)
Definition: format.h:155
mcast_shared_get
static mcast_shared_t mcast_shared_get(ip46_address_t *ip)
Definition: geneve.c:329
len
u8 len
Definition: ip_types.api:103
vnet_geneve_hdr_1word_hton
static void vnet_geneve_hdr_1word_hton(geneve_header_t *h)
Definition: geneve_packet.h:232
show_geneve_tunnel_command
static vlib_cli_command_t show_geneve_tunnel_command
(constructor) VLIB_CLI_COMMAND (show_geneve_tunnel_command)
Definition: geneve.c:924
fib_forward_chain_type_t
enum fib_forward_chain_type_t_ fib_forward_chain_type_t
FIB output chain type.
geneve_interface_admin_up_down
static clib_error_t * geneve_interface_admin_up_down(vnet_main_t *vnm, u32 hw_if_index, u32 flags)
Definition: geneve.c:100
CLIB_UNUSED
#define CLIB_UNUSED(x)
Definition: clib.h:90
vnet_get_hw_interface
static vnet_hw_interface_t * vnet_get_hw_interface(vnet_main_t *vnm, u32 hw_if_index)
Definition: interface_funcs.h:44
vnet_get_main
vnet_main_t * vnet_get_main(void)
Definition: pnat_test_stubs.h:56
format.h
PREDICT_FALSE
#define PREDICT_FALSE(x)
Definition: clib.h:124
format_geneve_tunnel
u8 * format_geneve_tunnel(u8 *s, va_list *args)
Definition: geneve.c:71
unformat_check_input
static uword unformat_check_input(unformat_input_t *i)
Definition: format.h:163
geneve_tunnel_back_walk
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:182
unformat_vlib_node
unformat_function_t unformat_vlib_node
Definition: node_funcs.h:1241
vec_validate_aligned
#define vec_validate_aligned(V, I, A)
Make sure vector is long enough for given index (no header, specified alignment)
Definition: vec.h:534
geneve_tunnel_t::next_dpo
dpo_id_t next_dpo
Definition: geneve.h:95
vnet_sw_interface_t::flood_class
vnet_flood_class_t flood_class
Definition: interface.h:897
fib_node_index_t
u32 fib_node_index_t
A typedef of a node index.
Definition: fib_types.h:29
MODE_L3
#define MODE_L3
Definition: l2_input.h:282
uword
u64 uword
Definition: types.h:112
vnet_delete_hw_interface
void vnet_delete_hw_interface(vnet_main_t *vnm, u32 hw_if_index)
Definition: interface.c:1052
hash_unset_mem_free
static void hash_unset_mem_free(uword **h, const void *key)
Definition: hash.h:295
hash_create_mem
#define hash_create_mem(elts, key_bytes, value_bytes)
Definition: hash.h:660
hash_get
#define hash_get(h, key)
Definition: hash.h:249
set_ip4_geneve_bypass
static clib_error_t * set_ip4_geneve_bypass(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: geneve.c:989
geneve_tunnel_t::hw_if_index
u32 hw_if_index
Definition: geneve.h:120
udp_register_dst_port
void udp_register_dst_port(vlib_main_t *vm, udp_dst_port_t dst_port, u32 node_index, u8 is_ip4)
Definition: udp_local.c:468
interface.h
load_balance_get_bucket_i
static const dpo_id_t * load_balance_get_bucket_i(const load_balance_t *lb, u32 bucket)
Definition: load_balance.h:229
format_geneve_encap_trace
u8 * format_geneve_encap_trace(u8 *s, va_list *args)
Definition: geneve.c:42
geneve_encap_trace_t::tunnel_index
u32 tunnel_index
Definition: geneve.h:82
fib_proto_to_link
vnet_link_t fib_proto_to_link(fib_protocol_t proto)
Convert from a protocol to a link type.
Definition: fib_types.c:377
hash_set_mem_alloc
static void hash_set_mem_alloc(uword **h, const void *key, uword v)
Definition: hash.h:279
format_unformat_error
u8 * format_unformat_error(u8 *s, va_list *va)
Definition: unformat.c:91
vec_validate
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment)
Definition: vec.h:523
address
manual_print typedef address
Definition: ip_types.api:96
VLIB_CLI_COMMAND
#define VLIB_CLI_COMMAND(x,...)
Definition: cli.h:163
dpo_stack_from_node
void dpo_stack_from_node(u32 child_node_index, dpo_id_t *dpo, const dpo_id_t *parent)
Stack one DPO object on another, and thus establish a child parent relationship.
Definition: dpo.c:550
fib_protocol_t
enum fib_protocol_t_ fib_protocol_t
Protocol Type.
udp_is_valid_dst_port
u8 udp_is_valid_dst_port(udp_dst_port_t dst_port, u8 is_ip4)
Definition: udp_local.c:529
geneve_vft
const static fib_node_vft_t geneve_vft
Definition: geneve.c:219
ALWAYS_ASSERT
#define ALWAYS_ASSERT(truth)
Definition: error_bootstrap.h:89
fib_node_register_type
void fib_node_register_type(fib_node_type_t type, const fib_node_vft_t *vft)
fib_node_register_type
Definition: fib_node.c:60
geneve_main_t::mcast_shared
uword * mcast_shared
Definition: geneve.h:179
mfib_table.h
CLIB_CACHE_LINE_BYTES
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:59
mfib_prefix_t_::fp_proto
fib_protocol_t fp_proto
protocol type
Definition: mfib_types.h:33
FIB_NODE_BACK_WALK_CONTINUE
@ FIB_NODE_BACK_WALK_CONTINUE
Definition: fib_node.h:259
vlib_cli_output
void vlib_cli_output(vlib_main_t *vm, char *fmt,...)
Definition: cli.c:716
set_interface_ip6_geneve_bypass_command
static vlib_cli_command_t set_interface_ip6_geneve_bypass_command
(constructor) VLIB_CLI_COMMAND (set_interface_ip6_geneve_bypass_command)
Definition: geneve.c:1095
geneve_main_t::vtep_table
vtep_table_t vtep_table
Definition: geneve.h:176
fib_proto_to_dpo
dpo_proto_t fib_proto_to_dpo(fib_protocol_t fib_proto)
Definition: fib_types.c:343
fib_prefix_t_::fp_addr
ip46_address_t fp_addr
The address type is not deriveable from the fp_addr member.
Definition: fib_types.h:225
geneve_tunnel_t::remote
ip46_address_t remote
Definition: geneve.h:107
vtep_addr_unref
uword vtep_addr_unref(vtep_table_t *t, u32 fib_index, ip46_address_t *ip)
Definition: vtep.c:34
fib_entry_track.h
mcast_sw_if_index
vl_api_interface_index_t mcast_sw_if_index
Definition: vxlan_gbp.api:41
geneve_main_t::geneve6_tunnel_by_key
uword * geneve6_tunnel_by_key
Definition: geneve.h:172
DPO_ADJACENCY_MCAST
@ DPO_ADJACENCY_MCAST
Definition: dpo.h:110
DPO_LOAD_BALANCE
@ DPO_LOAD_BALANCE
load-balancing over a choice of [un]equal cost paths
Definition: dpo.h:104
set_int_l2_mode
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:256
is_ip6
bool is_ip6
Definition: ip.api:43
geneve_tunnel_t::fib_entry_index
fib_node_index_t fib_entry_index
Definition: geneve.h:131
set_ip_geneve_bypass
static clib_error_t * set_ip_geneve_bypass(u32 is_ip6, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: geneve.c:945
vnet_hw_interface_t
Definition: interface.h:638
vnet_main_t
Definition: vnet.h:76
vec_free
#define vec_free(V)
Free vector's memory (no header).
Definition: vec.h:395
index
u32 index
Definition: flow_types.api:221
geneve_main_t::tunnels
geneve_tunnel_t * tunnels
Definition: geneve.h:168
geneve_tunnel_last_lock_gone
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:206
dpo_copy
void dpo_copy(dpo_id_t *dst, const dpo_id_t *src)
atomic copy a data-plane object.
Definition: dpo.c:264
L2_BD_PORT_TYPE_NORMAL
@ L2_BD_PORT_TYPE_NORMAL
Definition: l2_bd.h:28
hash_get_mem
#define hash_get_mem(h, key)
Definition: hash.h:269
geneve_main_t::vlib_main
vlib_main_t * vlib_main
Definition: geneve.h:185
u64
unsigned long u64
Definition: types.h:89
format_vnet_sw_if_index_name
format_function_t format_vnet_sw_if_index_name
Definition: interface_funcs.h:455
unformat_vnet_sw_interface
unformat_function_t unformat_vnet_sw_interface
Definition: interface_funcs.h:459
format
description fragment has unexpected format
Definition: map.api:433
ASSERT
#define ASSERT(truth)
Definition: error_bootstrap.h:69
vec_validate_init_empty
#define vec_validate_init_empty(V, I, INIT)
Make sure vector is long enough for given index and initialize empty space (no header,...
Definition: vec.h:570
vnet_set_geneve_oamframe_bit
static void vnet_set_geneve_oamframe_bit(geneve_header_t *h, u8 oam)
Definition: geneve_packet.h:192
format_ip46_address
format_function_t format_ip46_address
Definition: ip46_address.h:50
FIB_ROUTE_PATH_FLAG_NONE
@ FIB_ROUTE_PATH_FLAG_NONE
Definition: fib_types.h:332
u32
unsigned int u32
Definition: types.h:88
VLIB_INIT_FUNCTION
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:172
format_geneve_header_with_length
static u8 * format_geneve_header_with_length(u8 *s, va_list *args)
Definition: geneve.c:128
ethernet_delete_interface
void ethernet_delete_interface(vnet_main_t *vnm, u32 hw_if_index)
Definition: interface.c:393
udp_header_t::dst_port
u16 dst_port
Definition: udp_packet.h:48
l2_input_config_t::feature_bitmap
u32 feature_bitmap
Definition: l2_input.h:60
fib_route_path_t_
A representation of a path as described by a route producer.
Definition: fib_types.h:500
ctx
long ctx[MAX_CONNS]
Definition: main.c:144
si
vnet_sw_interface_t * si
Definition: interface_output.c:398
load_balance_get
static load_balance_t * load_balance_get(index_t lbi)
Definition: load_balance.h:220
as_u64
u64 as_u64
Definition: bihash_doc.h:63
pool_elts
static uword pool_elts(void *v)
Number of active elements in a pool.
Definition: pool.h:127
geneve_tunnel_restack_dpo
static void geneve_tunnel_restack_dpo(geneve_tunnel_t *t)
Definition: geneve.c:144
vlib_node_get_runtime
static vlib_node_runtime_t * vlib_node_get_runtime(vlib_main_t *vm, u32 node_index)
Get node runtime by node index.
Definition: node_funcs.h:116
geneve_tunnel_t
Definition: geneve.h:86
ip6_header_t
Definition: ip6_packet.h:294
vnet_feature_enable_disable
int vnet_feature_enable_disable(const char *arc_name, const char *node_name, u32 sw_if_index, int enable_disable, void *feature_config, u32 n_feature_config_bytes)
Definition: pnat_test_stubs.h:50
fib_node_t_
An node in the FIB graph.
Definition: fib_node.h:301
hash_unset
#define hash_unset(h, key)
Definition: hash.h:261
adj_index_t
u32 adj_index_t
An index for adjacencies.
Definition: adj_types.h:30
clib_memset
clib_memset(h->entries, 0, sizeof(h->entries[0]) *entries)
vlib_main_t
Definition: main.h:102
VNET_SW_INTERFACE_FLAG_HIDDEN
@ VNET_SW_INTERFACE_FLAG_HIDDEN
Definition: interface.h:855
vlib_node_t
Definition: node.h:247
fib_node_init
void fib_node_init(fib_node_t *node, fib_node_type_t type)
Definition: fib_node.c:185
geneve_header_t
Definition: geneve_packet.h:101
u8
unsigned char u8
Definition: types.h:56
clib_error_t
Definition: clib_error.h:21
vnet_hw_interface_set_flags
clib_error_t * vnet_hw_interface_set_flags(vnet_main_t *vnm, u32 hw_if_index, vnet_hw_interface_flags_t flags)
Definition: interface.c:513
a
a
Definition: bitmap.h:544
vnet_set_geneve_options_len
static void vnet_set_geneve_options_len(geneve_header_t *h, u8 len)
Definition: geneve_packet.h:178
ip
vl_api_address_t ip
Definition: l2.api:558
ip4_header_checksum
static u16 ip4_header_checksum(ip4_header_t *i)
Definition: ip4_packet.h:314
geneve_tunnel_from_fib_node
static geneve_tunnel_t * geneve_tunnel_from_fib_node(fib_node_t *node)
Definition: geneve.c:170
vlib_init_function_t
clib_error_t *() vlib_init_function_t(struct vlib_main_t *vm)
Definition: init.h:51
mfib_table_entry_path_update
fib_node_index_t mfib_table_entry_path_update(u32 fib_index, const mfib_prefix_t *prefix, mfib_source_t source, const fib_route_path_t *rpath)
Add n paths to an entry (aka route) in the FIB.
Definition: mfib_table.c:325
default_build_rewrite
u8 * default_build_rewrite(vnet_main_t *vnm, u32 sw_if_index, vnet_link_t link_type, const void *dst_address)
Return a complete, zero-length (aka placeholder) rewrite.
Definition: interface.c:1705
fib_node_back_walk_ctx_t_
Context passed between object during a back walk.
Definition: fib_node.h:214
fib_node_vft_t_::fnv_get
fib_node_get_t fnv_get
Definition: fib_node.h:289
VNET_FLOOD_CLASS_TUNNEL_MASTER
@ VNET_FLOOD_CLASS_TUNNEL_MASTER
Definition: interface.h:819
unformat_decap_next
static uword unformat_decap_next(unformat_input_t *input, va_list *args)
Definition: geneve.c:639
MFIB_ITF_FLAG_FORWARD
@ MFIB_ITF_FLAG_FORWARD
Definition: mfib_types.h:153
dpo_id_t_
The identity of a DPO is a combination of its type and its instance number/index of objects of that t...
Definition: dpo.h:172
unformat_ip6_address
unformat_function_t unformat_ip6_address
Definition: format.h:89
geneve_encap_trace_t::vni
u32 vni
Definition: geneve.h:83
rv
int __clib_unused rv
Definition: application.c:491
IP46_TYPE_ANY
@ IP46_TYPE_ANY
Definition: ip46_address.h:24
unformat_ip4_address
unformat_function_t unformat_ip4_address
Definition: format.h:68
fib_node_deinit
void fib_node_deinit(fib_node_t *node)
Definition: fib_node.c:197
geneve_tunnel_t::decap_next_index
u32 decap_next_index
Definition: geneve.h:113
load_balance_t_
The FIB DPO provieds;.
Definition: load_balance.h:106
FIB_FORW_CHAIN_TYPE_UNICAST_IP6
@ FIB_FORW_CHAIN_TYPE_UNICAST_IP6
Contribute an object that is to be used to forward IP6 packets.
Definition: fib_types.h:112
dpo_set
void dpo_set(dpo_id_t *dpo, dpo_type_t type, dpo_proto_t proto, index_t index)
Set/create a DPO ID The DPO will be locked.
Definition: dpo.c:188
vlib_node_runtime_t
Definition: node.h:454
l2input_main_t::configs
l2_input_config_t * configs
Definition: l2_input.h:90
geneve_tunnel_t::encap_fib_index
u32 encap_fib_index
Definition: geneve.h:116
vlib_cli_command_t
Definition: cli.h:92
format_decap_next
static u8 * format_decap_next(u8 *s, va_list *args)
Definition: geneve.c:54
vnet_set_geneve_version
static void vnet_set_geneve_version(geneve_header_t *h, u8 version)
Definition: geneve_packet.h:165
fib_table_find
u32 fib_table_find(fib_protocol_t proto, u32 table_id)
Get the index of the FIB for a Table-ID.
Definition: fib_table.c:1106
sw_if_index
vl_api_interface_index_t sw_if_index
Definition: wireguard.api:34
VNET_DEVICE_CLASS
VNET_DEVICE_CLASS(geneve_device_class, static)
geneve_init
clib_error_t * geneve_init(vlib_main_t *vm)
Definition: geneve.c:1103
geneve4_encap_node
vlib_node_registration_t geneve4_encap_node
(constructor) VLIB_REGISTER_NODE (geneve4_encap_node)
Definition: encap.c:548
GENEVE_ETH_PROTOCOL
#define GENEVE_ETH_PROTOCOL
Definition: geneve_packet.h:99
geneve_tunnel_t::sibling_index
u32 sibling_index
The tunnel is a child of the FIB entry for its desintion.
Definition: geneve.h:140
dpo_reset
void dpo_reset(dpo_id_t *dpo)
reset a DPO ID The DPO will be unlocked.
Definition: dpo.c:234
fib_prefix_t_
Aggregate type for a prefix.
Definition: fib_types.h:202
FIB_ROUTE_PATH_LOCAL
@ FIB_ROUTE_PATH_LOCAL
A for-us/local path.
Definition: fib_types.h:344
mcast_shared_remove
static void mcast_shared_remove(ip46_address_t *remote)
Definition: geneve.c:352
vnet_register_interface
u32 vnet_register_interface(vnet_main_t *vnm, u32 dev_class_index, u32 dev_instance, u32 hw_class_index, u32 hw_instance)
Definition: interface.c:812
ethernet_register_interface
clib_error_t * ethernet_register_interface(vnet_main_t *vnm, u32 dev_class_index, u32 dev_instance, const u8 *address, u32 *hw_if_index_return, ethernet_flag_change_function_t flag_change)
Definition: interface.c:348
UNFORMAT_END_OF_INPUT
#define UNFORMAT_END_OF_INPUT
Definition: format.h:137
geneve_tunnel_fib_node_get
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:192
mac_address
manual_print typedef u8 mac_address[6]
Definition: ethernet_types.api:19
flags
vl_api_wireguard_peer_flags_t flags
Definition: wireguard.api:105