FD.io VPP  v18.01-8-g0eacf49
Vector Packet Processing
udp_encap.c
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1 /*
2  * Copyright (c) 2017 Cisco and/or its affiliates.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at:
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #include <vnet/udp/udp_encap.h>
17 #include <vnet/fib/fib_entry.h>
18 #include <vnet/fib/fib_table.h>
19 #include <vnet/dpo/drop_dpo.h>
20 
21 /**
22  * Registered DPO types for the IP header encapsulated, v4 or v6.
23  */
25 
26 /**
27  * Hash DB to map from client ID to VPP index.
28  */
30 
31 /**
32  * Pool of encaps
33  */
35 
36 static udp_encap_t *
38 {
39  udp_encap_t *ue = NULL;
40  index_t uei;
41 
42  uei = udp_encap_find (id);
43 
44  if (INDEX_INVALID != uei)
45  {
46  ue = udp_encap_get (uei);
47  }
48 
49  return (ue);
50 }
51 
52 static void
54 {
57  &ue->ue_dpo,
59 }
60 
61 index_t
63  fib_protocol_t proto,
64  index_t fib_index,
65  const ip46_address_t * src_ip,
66  const ip46_address_t * dst_ip,
67  u16 src_port,
69 {
70  udp_encap_t *ue;
71  index_t uei;
72 
73  uei = udp_encap_find (id);
74 
75  if (INDEX_INVALID == uei)
76  {
77  u8 pfx_len = 0;
78 
79  pool_get (udp_encap_pool, ue);
80  uei = ue - udp_encap_pool;
81 
82  hash_set (udp_encap_db, id, uei);
83 
86  ue->ue_fib_index = fib_index;
87  ue->ue_flags = flags;
88  ue->ue_id = id;
89  ue->ue_ip_proto = proto;
90 
91  switch (proto)
92  {
93  case FIB_PROTOCOL_IP4:
94  pfx_len = 32;
95  ue->ue_hdrs.ip4.ue_ip4.ip_version_and_header_length = 0x45;
96  ue->ue_hdrs.ip4.ue_ip4.ttl = 254;
97  ue->ue_hdrs.ip4.ue_ip4.protocol = IP_PROTOCOL_UDP;
98  ue->ue_hdrs.ip4.ue_ip4.src_address.as_u32 = src_ip->ip4.as_u32;
99  ue->ue_hdrs.ip4.ue_ip4.dst_address.as_u32 = dst_ip->ip4.as_u32;
100  ue->ue_hdrs.ip4.ue_ip4.checksum =
101  ip4_header_checksum (&ue->ue_hdrs.ip4.ue_ip4);
102  ue->ue_hdrs.ip4.ue_udp.src_port = clib_host_to_net_u16 (src_port);
103  ue->ue_hdrs.ip4.ue_udp.dst_port = clib_host_to_net_u16 (dst_port);
104 
105  break;
106  case FIB_PROTOCOL_IP6:
107  pfx_len = 128;
108  ue->ue_hdrs.ip6.ue_ip6.ip_version_traffic_class_and_flow_label =
109  clib_host_to_net_u32 (6 << 28);
110  ue->ue_hdrs.ip6.ue_ip6.hop_limit = 255;
111  ue->ue_hdrs.ip6.ue_ip6.protocol = IP_PROTOCOL_UDP;
112  ue->ue_hdrs.ip6.ue_ip6.src_address.as_u64[0] =
113  src_ip->ip6.as_u64[0];
114  ue->ue_hdrs.ip6.ue_ip6.src_address.as_u64[1] =
115  src_ip->ip6.as_u64[1];
116  ue->ue_hdrs.ip6.ue_ip6.dst_address.as_u64[0] =
117  dst_ip->ip6.as_u64[0];
118  ue->ue_hdrs.ip6.ue_ip6.dst_address.as_u64[1] =
119  dst_ip->ip6.as_u64[1];
120  ue->ue_hdrs.ip6.ue_udp.src_port = clib_host_to_net_u16 (src_port);
121  ue->ue_hdrs.ip6.ue_udp.dst_port = clib_host_to_net_u16 (dst_port);
122 
123  break;
124  default:
125  ASSERT (0);
126  }
127 
128  /*
129  * track the destination address
130  */
131  fib_prefix_t dst_pfx = {
132  .fp_proto = proto,
133  .fp_len = pfx_len,
134  .fp_addr = *dst_ip,
135  };
136 
137  ue->ue_fib_entry_index =
138  fib_table_entry_special_add (fib_index,
139  &dst_pfx,
141  ue->ue_fib_sibling =
144 
145  udp_encap_restack (ue);
146  }
147  else
148  {
149  /*
150  * existing entry. updates not supported yet
151  */
152  uei = INDEX_INVALID;
153  }
154  return (uei);
155 }
156 
157 void
159 {
160  index_t uei;
161 
162  uei = udp_encap_find (id);
163 
164  if (INDEX_INVALID == uei)
165  {
166  dpo_copy (dpo, drop_dpo_get (proto));
167  }
168  else
169  {
170  udp_encap_t *ue;
171 
172  ue = udp_encap_get (uei);
173 
174  dpo_set (dpo, udp_encap_dpo_types[ue->ue_ip_proto], proto, uei);
175  }
176 }
177 
178 index_t
180 {
181  uword *p;
182 
183  p = hash_get (udp_encap_db, id);
184 
185  if (NULL != p)
186  return p[0];
187 
188  return INDEX_INVALID;
189 }
190 
191 void
193 {
194  udp_encap_t *ue;
195 
196  ue = udp_encap_get_w_id (id);
197 
198  if (NULL != ue)
199  {
200  fib_node_lock (&ue->ue_fib_node);
201  }
202 }
203 
204 void
206 {
207  udp_encap_t *ue;
208 
209  if (INDEX_INVALID == uei)
210  {
211  return;
212  }
213 
214  ue = udp_encap_get (uei);
215 
216  if (NULL != ue)
217  {
219  }
220 }
221 
222 void
224 {
225  udp_encap_t *ue;
226 
227  ue = udp_encap_get_w_id (id);
228 
229  if (NULL != ue)
230  {
232  }
233 }
234 
235 static void
237 {
238  udp_encap_t *ue;
239 
240  ue = udp_encap_get (dpo->dpoi_index);
241 
242  fib_node_lock (&ue->ue_fib_node);
243 }
244 
245 static void
247 {
248  udp_encap_t *ue;
249 
250  ue = udp_encap_get (dpo->dpoi_index);
251 
253 }
254 
255 static u8 *
256 format_udp_encap_i (u8 * s, va_list * args)
257 {
258  index_t uei = va_arg (*args, index_t);
259  u32 indent = va_arg (*args, u32);
260  u32 details = va_arg (*args, u32);
261  udp_encap_t *ue;
262 
263  ue = udp_encap_get (uei);
264 
265  // FIXME
266  s = format (s, "udp-ecap:[%d]: id:%d ip-fib-index:%d",
267  uei, ue->ue_id, ue->ue_fib_index);
268  if (FIB_PROTOCOL_IP4 == ue->ue_ip_proto)
269  {
270  s = format (s, "ip:[src:%U, dst:%U] udp:[src:%d, dst:%d]",
272  &ue->ue_hdrs.ip4.ue_ip4.src_address,
274  &ue->ue_hdrs.ip4.ue_ip4.dst_address,
275  clib_net_to_host_u16 (ue->ue_hdrs.ip4.ue_udp.src_port),
276  clib_net_to_host_u16 (ue->ue_hdrs.ip4.ue_udp.dst_port));
277  }
278  else
279  {
280  s = format (s, "ip:[src:%U, dst:%U] udp:[src:%d dst:%d]",
282  &ue->ue_hdrs.ip6.ue_ip6.src_address,
284  &ue->ue_hdrs.ip6.ue_ip6.dst_address,
285  clib_net_to_host_u16 (ue->ue_hdrs.ip6.ue_udp.src_port),
286  clib_net_to_host_u16 (ue->ue_hdrs.ip6.ue_udp.dst_port));
287  }
288  if (details)
289  {
290  s = format (s, " locks:%d", ue->ue_fib_node.fn_locks);
291  s = format (s, "\n%UStacked on:", format_white_space, indent + 1);
292  s = format (s, "\n%U%U",
293  format_white_space, indent + 2,
294  format_dpo_id, &ue->ue_dpo, indent + 3);
295  }
296  return (s);
297 }
298 
299 static u8 *
300 format_udp_encap_dpo (u8 * s, va_list * args)
301 {
302  index_t uei = va_arg (*args, index_t);
303  u32 indent = va_arg (*args, u32);
304 
305  return (format (s, "%U", format_udp_encap_i, uei, indent, 1));
306 }
307 
308 u8 *
309 format_udp_encap (u8 * s, va_list * args)
310 {
311  u32 id = va_arg (*args, u32);
312  u32 details = va_arg (*args, u32);
313  index_t uei;
314 
315  uei = udp_encap_find (id);
316 
317  if (INDEX_INVALID == uei)
318  {
319  return (format (s, "Invalid udp-encap ID: %d", id));
320  }
321 
322  return (format (s, "%U", format_udp_encap_i, uei, 0, details));
323 }
324 
325 static udp_encap_t *
327 {
329  return ((udp_encap_t *) (((char *) node) -
330  STRUCT_OFFSET_OF (udp_encap_t, ue_fib_node)));
331 }
332 
333 /**
334  * Function definition to backwalk a FIB node
335  */
338 {
340 
342 }
343 
344 /**
345  * Function definition to get a FIB node from its index
346  */
347 static fib_node_t *
349 {
350  udp_encap_t *ue;
351 
352  ue = pool_elt_at_index (udp_encap_pool, index);
353 
354  return (&ue->ue_fib_node);
355 }
356 
357 /**
358  * Function definition to inform the FIB node that its last lock has gone.
359  */
360 static void
362 {
363  udp_encap_t *ue;
364 
365  ue = udp_encap_from_fib_node (node);
366 
367  /**
368  * reset the stacked DPO to unlock it
369  */
370  dpo_reset (&ue->ue_dpo);
372 
375 
376 
377  pool_put (udp_encap_pool, ue);
378 }
379 
380 const static char *const udp4_encap_ip4_nodes[] = {
381  "udp4-encap",
382  NULL,
383 };
384 
385 const static char *const udp4_encap_ip6_nodes[] = {
386  "udp4-encap",
387  NULL,
388 };
389 
390 const static char *const udp4_encap_mpls_nodes[] = {
391  "udp4-encap",
392  NULL,
393 };
394 
395 const static char *const udp4_encap_bier_nodes[] = {
396  "udp4-encap",
397  NULL,
398 };
399 
400 const static char *const udp6_encap_ip4_nodes[] = {
401  "udp6-encap",
402  NULL,
403 };
404 
405 const static char *const udp6_encap_ip6_nodes[] = {
406  "udp6-encap",
407  NULL,
408 };
409 
410 const static char *const udp6_encap_mpls_nodes[] = {
411  "udp6-encap",
412  NULL,
413 };
414 
415 const static char *const udp6_encap_bier_nodes[] = {
416  "udp6-encap",
417  NULL,
418 };
419 
420 const static char *const *const udp4_encap_nodes[DPO_PROTO_NUM] = {
425 };
426 
427 const static char *const *const udp6_encap_nodes[DPO_PROTO_NUM] = {
432 };
433 
434 /*
435  * Virtual function table registered by UDP encaps
436  * for participation in the FIB object graph.
437  */
438 const static fib_node_vft_t udp_encap_fib_vft = {
440  .fnv_last_lock = udp_encap_fib_last_lock_gone,
441  .fnv_back_walk = udp_encap_fib_back_walk,
442 };
443 
444 const static dpo_vft_t udp_encap_dpo_vft = {
446  .dv_unlock = udp_encap_dpo_unlock,
447  .dv_format = format_udp_encap_dpo,
448 };
449 
450 clib_error_t *
452 {
453  udp_encap_db = hash_create (0, sizeof (index_t));
454 
455  fib_node_register_type (FIB_NODE_TYPE_UDP_ENCAP, &udp_encap_fib_vft);
456 
458  dpo_register_new_type (&udp_encap_dpo_vft, udp4_encap_nodes);
460  dpo_register_new_type (&udp_encap_dpo_vft, udp6_encap_nodes);
461 
462  return (NULL);
463 }
464 
466 
467 clib_error_t *
469  unformat_input_t * main_input, vlib_cli_command_t * cmd)
470 {
471  unformat_input_t _line_input, *line_input = &_line_input;
472  clib_error_t *error = NULL;
473  ip46_address_t src_ip, dst_ip;
474  u32 table_id, ue_id;
475  u32 src_port, dst_port;
477  fib_protocol_t fproto;
478  u8 is_del;
479 
480  is_del = 0;
481  table_id = 0;
482  flags = UDP_ENCAP_FIXUP_NONE;
483  fproto = FIB_PROTOCOL_MAX;
484  dst_port = 0;
485  ue_id = ~0;
486 
487  /* Get a line of input. */
488  if (!unformat_user (main_input, unformat_line_input, line_input))
489  return 0;
490 
491  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
492  {
493  if (unformat (line_input, "id %d", &ue_id))
494  ;
495  else if (unformat (line_input, "add"))
496  is_del = 0;
497  else if (unformat (line_input, "del"))
498  is_del = 1;
499  else if (unformat (line_input, "%U %U",
501  &src_ip.ip4, unformat_ip4_address, &dst_ip.ip4))
502  fproto = FIB_PROTOCOL_IP4;
503  else if (unformat (line_input, "%U %U",
505  &src_ip.ip6, unformat_ip6_address, &dst_ip.ip6))
506  fproto = FIB_PROTOCOL_IP6;
507  else if (unformat (line_input, "%d %d", &src_port, &dst_port))
508  ;
509  else if (unformat (line_input, "%d", &dst_port))
510  ;
511  else if (unformat (line_input, "table-id %d", &table_id))
512  ;
513  else if (unformat (line_input, "src-port-is-entropy"))
515  else
516  {
517  error = unformat_parse_error (line_input);
518  goto done;
519  }
520  }
521 
522  if (~0 == ue_id)
523  {
524  error =
525  clib_error_return (0, "An ID for the UDP encap instance is required");
526  goto done;
527  }
528 
529  if (!is_del && fproto != FIB_PROTOCOL_MAX)
530  {
531  u32 fib_index;
532  index_t uei;
533 
534  fib_index = fib_table_find (fproto, table_id);
535 
536  if (~0 == fib_index)
537  {
538  error = clib_error_return (0, "Nonexistent table id %d", table_id);
539  goto done;
540  }
541 
542  uei = udp_encap_add_and_lock (ue_id, fproto, fib_index,
543  &src_ip, &dst_ip,
544  src_port, dst_port, flags);
545 
546  if (INDEX_INVALID == uei)
547  {
548  error =
549  clib_error_return (0, "update to existing encap not supported %d",
550  ue_id);
551  goto done;
552  }
553  }
554  else if (is_del)
555  {
556  udp_encap_unlock (ue_id);
557  }
558  else
559  {
560  error =
562  "Some IP addresses would be usefull, don't you think?",
563  ue_id);
564  }
565 
566 done:
567  unformat_free (line_input);
568  return error;
569 }
570 
571 clib_error_t *
573  unformat_input_t * input, vlib_cli_command_t * cmd)
574 {
575  u32 ue_id;
576 
577  ue_id = ~0;
578 
579  /* Get a line of input. */
581  {
582  if (unformat (input, "%d", &ue_id))
583  ;
584  else
585  return clib_error_return (0, "unknown input `%U'",
586  format_unformat_error, input);
587  }
588 
589  if (~0 == ue_id)
590  {
591  udp_encap_t *ue;
592 
593  /* *INDENT-OFF* */
594  pool_foreach(ue, udp_encap_pool,
595  ({
596  vlib_cli_output(vm, "%U", format_udp_encap, ue->ue_id, 0);
597  }));
598  /* *INDENT-ON* */
599  }
600  else
601  {
602  vlib_cli_output (vm, "%U", format_udp_encap, ue_id, 1);
603  }
604 
605  return NULL;
606 }
607 
608 /* *INDENT-OFF* */
609 VLIB_CLI_COMMAND (udp_encap_add_command, static) = {
610  .path = "udp encap",
611  .short_help = "udp encap [add|del] <id ID> <src-ip> <dst-ip> [<src-port>] <dst-port> [src-port-is-entropy] [table-id <table>]",
612  .function = udp_encap_cli,
613  .is_mp_safe = 1,
614 };
615 VLIB_CLI_COMMAND (udp_encap_show_command, static) = {
616  .path = "show udp encap",
617  .short_help = "show udp encap [ID]",
618  .function = udp_encap_show,
619  .is_mp_safe = 1,
620 };
621 /* *INDENT-ON* */
622 
623 /*
624  * fd.io coding-style-patch-verification: ON
625  *
626  * Local Variables:
627  * eval: (c-set-style "gnu")
628  * End:
629  */
fib_protocol_t ue_ip_proto
the protocol of the IP header imposed
Definition: udp_encap.h:83
fib_protocol_t fp_proto
protocol type
Definition: fib_types.h:181
u32 ue_fib_sibling
Definition: udp_encap.h:102
dpo_lock_fn_t dv_lock
A reference counting lock function.
Definition: dpo.h:382
Recursive resolution source.
Definition: fib_entry.h:117
#define hash_set(h, key, value)
Definition: hash.h:254
dpo_type_t udp_encap_dpo_types[FIB_PROTOCOL_MAX]
Registered DPO types for the IP header encapsulated, v4 or v6.
Definition: udp_encap.c:24
The UDP encap represenation.
Definition: udp_encap.h:46
A virtual function table regisitered for a DPO type.
Definition: dpo.h:377
udp_encap_t * udp_encap_pool
Pool of encaps.
Definition: udp_encap.c:34
#define hash_unset(h, key)
Definition: hash.h:260
index_t udp_encap_find(u32 id)
Definition: udp_encap.c:179
void fib_node_init(fib_node_t *node, fib_node_type_t type)
Definition: fib_node.c:185
u32 fib_entry_child_add(fib_node_index_t fib_entry_index, fib_node_type_t child_type, fib_node_index_t child_index)
Definition: fib_entry.c:503
static u8 * format_udp_encap_i(u8 *s, va_list *args)
Definition: udp_encap.c:256
static const char *const udp6_encap_mpls_nodes[]
Definition: udp_encap.c:410
#define NULL
Definition: clib.h:55
fib_node_index_t ue_fib_entry_index
Tracking information for the IP destination.
Definition: udp_encap.h:101
enum fib_node_back_walk_rc_t_ fib_node_back_walk_rc_t
Return code from a back walk function.
static udp_encap_t * udp_encap_get_w_id(u32 id)
Definition: udp_encap.c:37
const dpo_id_t * fib_entry_contribute_ip_forwarding(fib_node_index_t fib_entry_index)
Definition: fib_entry.c:459
void udp_encap_lock(u32 id)
Definition: udp_encap.c:192
static void udp_encap_dpo_lock(dpo_id_t *dpo)
Definition: udp_encap.c:236
void fib_entry_child_remove(fib_node_index_t fib_entry_index, u32 sibling_index)
Definition: fib_entry.c:514
void dpo_copy(dpo_id_t *dst, const dpo_id_t *src)
atomic copy a data-plane object.
Definition: dpo.c:258
u32 index_t
A Data-Path Object is an object that represents actions that are applied to packets are they are swit...
Definition: dpo.h:41
dpo_id_t ue_dpo
The DPO used to forward to the next node in the VLIB graph.
Definition: udp_encap.h:78
uword unformat_user(unformat_input_t *input, unformat_function_t *func,...)
Definition: unformat.c:983
#define STRUCT_OFFSET_OF(t, f)
Definition: clib.h:62
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:419
clib_error_t * udp_encap_init(vlib_main_t *vm)
Definition: udp_encap.c:451
fib_node_t ue_fib_node
linkage into the FIB graph
Definition: udp_encap.h:90
#define pool_get(P, E)
Allocate an object E from a pool P (unspecified alignment).
Definition: pool.h:225
struct udp_encap_t_::@293::@295 ip6
enum fib_protocol_t_ fib_protocol_t
Protocol Type.
uword * udp_encap_db
Hash DB to map from client ID to VPP index.
Definition: udp_encap.c:29
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
u32 ue_id
The ID given by the user/client.
Definition: udp_encap.h:96
const dpo_id_t * drop_dpo_get(dpo_proto_t proto)
Definition: drop_dpo.c:25
format_function_t format_ip4_address
Definition: format.h:79
enum dpo_type_t_ dpo_type_t
Common types of data-path objects New types can be dynamically added using dpo_register_new_type() ...
#define pool_foreach(VAR, POOL, BODY)
Iterate through pool.
Definition: pool.h:438
unformat_function_t unformat_ip4_address
Definition: format.h:76
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:111
u8 * format_white_space(u8 *s, va_list *va)
Definition: std-formats.c:113
Aggregrate type for a prefix.
Definition: fib_types.h:172
#define clib_error_return(e, args...)
Definition: error.h:99
enum dpo_proto_t_ dpo_proto_t
Data path protocol.
u32 fib_table_find(fib_protocol_t proto, u32 table_id)
Get the index of the FIB for a Table-ID.
Definition: fib_table.c:1028
void udp_encap_unlock(u32 id)
Definition: udp_encap.c:223
static const char *const *const udp4_encap_nodes[DPO_PROTO_NUM]
Definition: udp_encap.c:420
enum udp_encap_fixup_flags_t_ udp_encap_fixup_flags_t
UDP encapsualtion.
dpo_type_t dpo_register_new_type(const dpo_vft_t *vft, const char *const *const *nodes)
Create and register a new DPO type.
Definition: dpo.c:322
Definition: fib_entry.h:238
unformat_function_t unformat_line_input
Definition: format.h:281
The identity of a DPO is a combination of its type and its instance number/index of objects of that t...
Definition: dpo.h:166
static const char *const udp6_encap_ip6_nodes[]
Definition: udp_encap.c:405
#define hash_get(h, key)
Definition: hash.h:248
index_t udp_encap_add_and_lock(u32 id, fib_protocol_t proto, index_t fib_index, const ip46_address_t *src_ip, const ip46_address_t *dst_ip, u16 src_port, u16 dst_port, udp_encap_fixup_flags_t flags)
Definition: udp_encap.c:62
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:459
UDP source port contains an entropy/hash value for load-balancing by downstream peers.
Definition: udp_encap.h:40
clib_error_t * udp_encap_show(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: udp_encap.c:572
void fib_node_lock(fib_node_t *node)
Definition: fib_node.c:203
struct _unformat_input_t unformat_input_t
static void udp_encap_dpo_unlock(dpo_id_t *dpo)
Definition: udp_encap.c:246
u8 * format_udp_encap(u8 *s, va_list *args)
Definition: udp_encap.c:309
#define pool_put(P, E)
Free an object E in pool P.
Definition: pool.h:271
static void udp_encap_restack(udp_encap_t *ue)
Definition: udp_encap.c:53
static const char *const udp4_encap_bier_nodes[]
Definition: udp_encap.c:395
fib_node_type_t fn_type
The node&#39;s type.
Definition: fib_node.h:290
An node in the FIB graph.
Definition: fib_node.h:286
void fib_node_unlock(fib_node_t *node)
Definition: fib_node.c:209
unformat_function_t unformat_ip6_address
Definition: format.h:94
static u8 * format_udp_encap_dpo(u8 *s, va_list *args)
Definition: udp_encap.c:300
fib_node_index_t fib_table_entry_special_add(u32 fib_index, const fib_prefix_t *prefix, fib_source_t source, fib_entry_flag_t flags)
Add a &#39;special&#39; entry to the FIB.
Definition: fib_table.c:371
index_t ue_fib_index
The FIB index in which the encap destination resides.
Definition: udp_encap.h:107
#define UNFORMAT_END_OF_INPUT
Definition: format.h:143
format_function_t format_ip6_address
Definition: format.h:95
vlib_main_t * vm
Definition: buffer.c:283
void fib_table_entry_delete_index(fib_node_index_t fib_entry_index, fib_source_t source)
Delete a FIB entry.
Definition: fib_table.c:860
fib_node_get_t fnv_get
Definition: fib_node.h:274
u32 fib_node_index_t
A typedef of a node index.
Definition: fib_types.h:29
static fib_node_back_walk_rc_t udp_encap_fib_back_walk(fib_node_t *node, fib_node_back_walk_ctx_t *ctx)
Function definition to backwalk a FIB node.
Definition: udp_encap.c:337
void dpo_set(dpo_id_t *dpo, dpo_type_t type, dpo_proto_t proto, index_t index)
Set/create a DPO ID The DPO will be locked.
Definition: dpo.c:182
Context passed between object during a back walk.
Definition: fib_node.h:199
#define VLIB_CLI_COMMAND(x,...)
Definition: cli.h:154
#define hash_create(elts, value_bytes)
Definition: hash.h:681
#define ASSERT(truth)
unsigned int u32
Definition: types.h:88
long ctx[MAX_CONNS]
Definition: main.c:122
static const char *const udp6_encap_bier_nodes[]
Definition: udp_encap.c:415
static const char *const udp4_encap_ip4_nodes[]
Definition: udp_encap.c:380
dpo_proto_t fib_proto_to_dpo(fib_protocol_t fib_proto)
Definition: fib_types.c:211
u8 * format_dpo_id(u8 *s, va_list *args)
Format a DPO_id_t oject
Definition: dpo.c:146
u64 uword
Definition: types.h:112
struct udp_encap_t_::@293::@294 ip4
#define unformat_parse_error(input)
Definition: format.h:267
static udp_encap_t * udp_encap_from_fib_node(fib_node_t *node)
Definition: udp_encap.c:326
unsigned short u16
Definition: types.h:57
#define DPO_PROTO_NUM
Definition: dpo.h:70
index_t dpoi_index
the index of objects of that type
Definition: dpo.h:182
unsigned char u8
Definition: types.h:56
u32 fn_locks
Number of dependents on this node.
Definition: fib_node.h:312
#define INDEX_INVALID
Invalid index - used when no index is known blazoned capitals INVALID speak volumes where ~0 does not...
Definition: dpo.h:47
static const char *const udp4_encap_mpls_nodes[]
Definition: udp_encap.c:390
static void unformat_free(unformat_input_t *i)
Definition: format.h:161
union udp_encap_t_::@293 ue_hdrs
The headers to paint, in packet painting order.
static fib_node_t * udp_encap_fib_node_get(fib_node_index_t index)
Function definition to get a FIB node from its index.
Definition: udp_encap.c:348
#define FIB_PROTOCOL_MAX
Definition outside of enum so it does not need to be included in non-defaulted switch statements...
Definition: fib_types.h:51
A FIB graph nodes virtual function table.
Definition: fib_node.h:273
u8 * format_unformat_error(u8 *s, va_list *va)
Definition: unformat.c:91
static const char *const udp6_encap_ip4_nodes[]
Definition: udp_encap.c:400
void dpo_reset(dpo_id_t *dpo)
reset a DPO ID The DPO will be unlocked.
Definition: dpo.c:228
udp_encap_fixup_flags_t ue_flags
Flags controlling fixup behaviour.
Definition: udp_encap.h:73
void udp_encap_unlock_w_index(index_t uei)
Definition: udp_encap.c:205
clib_error_t * udp_encap_cli(vlib_main_t *vm, unformat_input_t *main_input, vlib_cli_command_t *cmd)
Definition: udp_encap.c:468
u32 flags
Definition: vhost-user.h:77
static const char *const *const udp6_encap_nodes[DPO_PROTO_NUM]
Definition: udp_encap.c:427
static void udp_encap_fib_last_lock_gone(fib_node_t *node)
Function definition to inform the FIB node that its last lock has gone.
Definition: udp_encap.c:361
void vlib_cli_output(vlib_main_t *vm, char *fmt,...)
Definition: cli.c:680
static u16 ip4_header_checksum(ip4_header_t *i)
Definition: ip4_packet.h:239
void udp_encap_contribute_forwarding(u32 id, dpo_proto_t proto, dpo_id_t *dpo)
Definition: udp_encap.c:158
static udp_encap_t * udp_encap_get(index_t uei)
Definition: udp_encap.h:134
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:972
static uword unformat_check_input(unformat_input_t *i)
Definition: format.h:169
void dpo_stack(dpo_type_t child_type, dpo_proto_t child_proto, 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:470
static const char *const udp4_encap_ip6_nodes[]
Definition: udp_encap.c:385