FD.io VPP  v21.06-3-gbb25fbf28
Vector Packet Processing
ip4_mfib.c
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1 /*
2  * Copyright (c) 2016 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/mfib/ip4_mfib.h>
17 
18 #include <vnet/mfib/mfib_table.h>
19 #include <vnet/mfib/mfib_entry.h>
20 
21 static const mfib_prefix_t all_zeros =
22 {
24 };
25 static const mfib_prefix_t ip4_specials[] =
26 {
27  /* ALL prefixes are in network order */
28  {
29  /* (*,224.0.0.1)/32 - all hosts */
30  .fp_grp_addr = {
31  .ip4.data_u32 = 0x010000e0,
32  },
33  .fp_len = 32,
34  .fp_proto = FIB_PROTOCOL_IP4,
35  },
36  {
37  /* (*,224.0.0.2)/32 - all routers */
38  .fp_grp_addr = {
39  .ip4.data_u32 = 0x020000e0,
40  },
41  .fp_len = 32,
42  .fp_proto = FIB_PROTOCOL_IP4,
43  },
44 };
45 
46 static u32
49 {
50  mfib_table_t *mfib_table;
51 
53  clib_memset(mfib_table, 0, sizeof(*mfib_table));
54 
55  mfib_table->mft_proto = FIB_PROTOCOL_IP4;
56  mfib_table->mft_index =
57  mfib_table->v4.index =
58  (mfib_table - ip4_main.mfibs);
59 
61  table_id,
62  mfib_table->mft_index);
63 
64  mfib_table->mft_table_id =
65  mfib_table->v4.table_id =
66  table_id;
67 
69 
70  /*
71  * add the default route into the new FIB
72  */
74  &all_zeros,
78 
79  const fib_route_path_t path = {
80  .frp_proto = DPO_PROTO_IP4,
81  .frp_addr = zero_addr,
82  .frp_sw_if_index = ~0,
83  .frp_fib_index = ~0,
84  .frp_weight = 1,
85  .frp_flags = FIB_ROUTE_PATH_LOCAL,
86  .frp_mitf_flags = MFIB_ITF_FLAG_FORWARD,
87  };
88  int ii;
89 
90  for (ii = 0; ii < ARRAY_LEN(ip4_specials); ii++)
91  {
93  &ip4_specials[ii],
95  &path);
96  }
97 
98  return (mfib_table->mft_index);
99 }
100 
101 void
103 {
104  mfib_table_t *mfib_table = (mfib_table_t*)mfib;
105  int ii;
106 
107  /*
108  * remove all the specials we added when the table was created.
109  */
111  &all_zeros,
113 
114  for (ii = 0; ii < ARRAY_LEN(ip4_specials); ii++)
115  {
117  &ip4_specials[ii],
119  }
120 
121  /*
122  * validate no more routes.
123  */
124  ASSERT(0 == mfib_table->mft_total_route_counts);
125  ASSERT(~0 != mfib_table->mft_table_id);
126 
128  pool_put(ip4_main.mfibs, mfib_table);
129 }
130 
131 void
133 {
134  const fib_route_path_t path = {
135  .frp_proto = DPO_PROTO_IP4,
136  .frp_addr = zero_addr,
137  .frp_sw_if_index = sw_if_index,
138  .frp_fib_index = ~0,
139  .frp_weight = 1,
140  .frp_mitf_flags = MFIB_ITF_FLAG_ACCEPT,
141  };
142  u32 mfib_index;
143  int ii;
144 
147 
148  for (ii = 0; ii < ARRAY_LEN(ip4_specials); ii++)
149  {
150  if (is_enable)
151  {
152  mfib_table_entry_path_update(mfib_index,
153  &ip4_specials[ii],
155  &path);
156  }
157  else
158  {
159  mfib_table_entry_path_remove(mfib_index,
160  &ip4_specials[ii],
162  &path);
163  }
164  }
165 }
166 
167 u32
170 {
171  u32 index;
172 
174  if (~0 == index)
177 
178  return (index);
179 }
180 
181 u32
183 {
185  {
186  /*
187  * This is the case for interfaces that are not yet mapped to
188  * a IP table
189  */
190  return (~0);
191  }
193 }
194 
195 #define IPV4_MFIB_GRP_LEN(_len)\
196  (_len > 32 ? 32 : _len)
197 
198 #define IP4_MFIB_MK_KEY(_grp, _src, _len, _key) \
199 { \
200  _key = ((u64)(_grp->data_u32 & \
201  ip4_main.fib_masks[IPV4_MFIB_GRP_LEN(_len)])) << 32; \
202  _key |= _src->data_u32; \
203 }
204 #define IP4_MFIB_MK_GRP_KEY(_grp, _len, _key) \
205 { \
206  _key = ((u64)(_grp->data_u32 & \
207  ip4_main.fib_masks[IPV4_MFIB_GRP_LEN(_len)])) << 32; \
208 }
209 
210 /*
211  * ip4_fib_table_lookup_exact_match
212  *
213  * Exact match prefix lookup
214  */
217  const ip4_address_t *grp,
218  const ip4_address_t *src,
219  u32 len)
220 {
221  uword * hash, * result;
222  u64 key;
223 
224  hash = mfib->fib_entry_by_dst_address[len];
225  IP4_MFIB_MK_KEY(grp, src, len, key);
226 
227  result = hash_get(hash, key);
228 
229  if (NULL != result) {
230  return (result[0]);
231  }
232  return (FIB_NODE_INDEX_INVALID);
233 }
234 
235 /*
236  * ip4_fib_table_lookup
237  *
238  * Longest prefix match
239  */
242  const ip4_address_t *src,
243  const ip4_address_t *grp,
244  u32 len)
245 {
246  uword * hash, * result;
247  i32 mask_len;
248  u64 key;
249 
250  mask_len = len;
251 
252  if (PREDICT_TRUE(64 == mask_len))
253  {
254  hash = mfib->fib_entry_by_dst_address[mask_len];
255  IP4_MFIB_MK_KEY(grp, src, mask_len, key);
256 
257  result = hash_get (hash, key);
258 
259  if (NULL != result) {
260  return (result[0]);
261  }
262  }
263 
264  for (mask_len = (len == 64 ? 32 : len); mask_len >= 0; mask_len--)
265  {
266  hash = mfib->fib_entry_by_dst_address[mask_len];
267  IP4_MFIB_MK_GRP_KEY(grp, mask_len, key);
268 
269  result = hash_get (hash, key);
270 
271  if (NULL != result) {
272  return (result[0]);
273  }
274  }
275  return (FIB_NODE_INDEX_INVALID);
276 }
277 
280  const ip4_address_t *src,
281  const ip4_address_t *grp,
282  u32 len)
283 {
284  u32 mask_len;
285 
286  /*
287  * in the absence of a tree structure for the table that allows for an O(1)
288  * parent get, a cheeky way to find the cover is to LPM for the prefix with
289  * mask-1.
290  * there should always be a cover, though it may be the default route. the
291  * default route's cover is the default route.
292  */
293  if (len == 64)
294  {
295  /* go from (S,G) to (*,G*) */
296  mask_len = 32;
297  }
298  else if (len != 0)
299  {
300  mask_len = len - 1;
301  }
302  else
303  {
304  mask_len = len;
305  }
306 
307  return (ip4_mfib_table_lookup(mfib, src, grp, mask_len));
308 }
309 
310 void
312  const ip4_address_t *grp,
313  const ip4_address_t *src,
314  u32 len,
315  fib_node_index_t fib_entry_index)
316 {
317  uword * hash, * result;
318  u64 key;
319 
320  IP4_MFIB_MK_KEY(grp, src, len, key);
321  hash = mfib->fib_entry_by_dst_address[len];
322  result = hash_get (hash, key);
323 
324  if (NULL == result) {
325  /*
326  * adding a new entry
327  */
328  if (NULL == hash) {
329  hash = hash_create (32 /* elts */, sizeof (uword));
331  }
332  hash = hash_set(hash, key, fib_entry_index);
333  mfib->fib_entry_by_dst_address[len] = hash;
334  }
335  else
336  {
337  ASSERT(0);
338  }
339 }
340 
341 void
343  const ip4_address_t *grp,
344  const ip4_address_t *src,
345  u32 len)
346 {
347  uword * hash, * result;
348  u64 key;
349 
350  IP4_MFIB_MK_KEY(grp, src, len, key);
351  hash = mfib->fib_entry_by_dst_address[len];
352  result = hash_get (hash, key);
353 
354  if (NULL == result)
355  {
356  /*
357  * removing a non-existent entry. i'll allow it.
358  */
359  }
360  else
361  {
362  hash_unset(hash, key);
363  }
364 
365  mfib->fib_entry_by_dst_address[len] = hash;
366 }
367 
368 void
371  void *ctx)
372 {
373  int i;
374 
375  for (i = 0; i < ARRAY_LEN (mfib->fib_entry_by_dst_address); i++)
376  {
377  uword * hash = mfib->fib_entry_by_dst_address[i];
378 
379  if (NULL != hash)
380  {
381  hash_pair_t * p;
382 
383  hash_foreach_pair (p, hash,
384  ({
385  fn(p->value[0], ctx);
386  }));
387  }
388  }
389 }
390 
391 u8 *
392 format_ip4_mfib_table_memory (u8 * s, va_list * args)
393 {
394  mfib_table_t *mfib_table;
395  u64 total_memory;
396 
397  total_memory = 0;
398 
399  pool_foreach (mfib_table, ip4_main.mfibs)
400  {
401  ip4_mfib_t *mfib = &mfib_table->v4;
402  uword mfib_size;
403  int i;
404 
405  mfib_size = 0;
406 
407  for (i = 0; i < ARRAY_LEN (mfib->fib_entry_by_dst_address); i++)
408  {
409  uword * hash = mfib->fib_entry_by_dst_address[i];
410 
411  if (NULL != hash)
412  {
413  mfib_size += hash_bytes(hash);
414  }
415  }
416 
417  total_memory += mfib_size;
418  }
419 
420  s = format(s, "%=30s %=6d %=12ld\n",
421  "IPv4 multicast",
422  pool_elts(ip4_main.mfibs), total_memory);
423 
424  return (s);
425 }
426 
427 static void
429  vlib_main_t * vm)
430 {
431  fib_node_index_t *mfib_entry_indicies;
432  fib_node_index_t *mfib_entry_index;
433  int i;
434 
435  mfib_entry_indicies = NULL;
436 
437  for (i = 0; i < ARRAY_LEN (mfib->fib_entry_by_dst_address); i++)
438  {
439  uword * hash = mfib->fib_entry_by_dst_address[i];
440 
441  if (NULL != hash)
442  {
443  hash_pair_t * p;
444 
445  hash_foreach_pair (p, hash,
446  ({
447  vec_add1(mfib_entry_indicies, p->value[0]);
448  }));
449  }
450  }
451 
452  vec_sort_with_function(mfib_entry_indicies, mfib_entry_cmp_for_sort);
453 
454  vec_foreach(mfib_entry_index, mfib_entry_indicies)
455  {
456  vlib_cli_output(vm, "%U",
458  *mfib_entry_index,
460  }
461 
462  vec_free(mfib_entry_indicies);
463 }
464 
465 static void
467  vlib_main_t * vm,
469  ip4_address_t *grp,
470  u32 mask_len)
471 {
472  vlib_cli_output(vm, "%U",
474  ip4_mfib_table_lookup(mfib, src, grp, mask_len),
476 }
477 
478 static clib_error_t *
480  unformat_input_t * input,
481  vlib_cli_command_t * cmd)
482 {
483  ip4_main_t * im4 = &ip4_main;
484  mfib_table_t *mfib_table;
485  int verbose, matching, memory;
486  ip4_address_t grp, src = {{0}};
487  u32 mask = 32;
488  u64 total_hash_memory;
489  int i, table_id = -1, fib_index = ~0;
490 
491  verbose = 1;
492  memory = matching = 0;
493  total_hash_memory = 0;
494 
496  {
497  if (unformat (input, "brief") || unformat (input, "summary")
498  || unformat (input, "sum"))
499  verbose = 0;
500  else if (unformat (input, "mem") || unformat (input, "memory"))
501  memory = 1;
502  else if (unformat (input, "%U %U",
504  unformat_ip4_address, &grp))
505  {
506  matching = 1;
507  mask = 64;
508  }
509  else if (unformat (input, "%U/%d", unformat_ip4_address, &grp, &mask))
510  {
511  clib_memset(&src, 0, sizeof(src));
512  matching = 1;
513  }
514  else if (unformat (input, "%U", unformat_ip4_address, &grp))
515  {
516  clib_memset(&src, 0, sizeof(src));
517  matching = 1;
518  mask = 32;
519  }
520  else if (unformat (input, "table %d", &table_id))
521  ;
522  else if (unformat (input, "index %d", &fib_index))
523  ;
524  else
525  break;
526  }
527 
528  pool_foreach (mfib_table, im4->mfibs)
529  {
530  ip4_mfib_t *mfib = &mfib_table->v4;
531 
532  if (table_id >= 0 && table_id != (int)mfib->table_id)
533  continue;
534  if (fib_index != ~0 && fib_index != (int)mfib->index)
535  continue;
536 
537  if (memory)
538  {
539  uword hash_size;
540 
541  hash_size = 0;
542 
543  for (i = 0; i < ARRAY_LEN (mfib->fib_entry_by_dst_address); i++)
544  {
545  uword * hash = mfib->fib_entry_by_dst_address[i];
546  if (NULL != hash)
547  {
548  hash_size += hash_bytes(hash);
549  }
550  }
551  if (verbose)
552  vlib_cli_output (vm, "%U hash:%d",
555  hash_size);
556  total_hash_memory += hash_size;
557  continue;
558  }
559 
560  vlib_cli_output (vm, "%U, fib_index:%d flags:%U",
562  mfib->index,
563  format_mfib_table_flags, mfib_table->mft_flags);
564 
565  /* Show summary? */
566  if (! verbose)
567  {
568  vlib_cli_output (vm, "%=20s%=16s", "Prefix length", "Count");
569  for (i = 0; i < ARRAY_LEN (mfib->fib_entry_by_dst_address); i++)
570  {
571  uword * hash = mfib->fib_entry_by_dst_address[i];
572  uword n_elts = hash_elts (hash);
573  if (n_elts > 0)
574  vlib_cli_output (vm, "%20d%16d", i, n_elts);
575  }
576  continue;
577  }
578 
579  if (!matching)
580  {
582  }
583  else
584  {
585  ip4_mfib_table_show_one(mfib, vm, &src, &grp, mask);
586  }
587  }
588  if (memory)
589  vlib_cli_output (vm, "totals: hash:%ld", total_hash_memory);
590 
591  return 0;
592 }
593 
594 /*?
595  * This command displays the IPv4 MulticasrFIB Tables (VRF Tables) and
596  * the route entries for each table.
597  *
598  * @note This command will run for a long time when the FIB tables are
599  * comprised of millions of entries. For those senarios, consider displaying
600  * a single table or summary mode.
601  *
602  * @cliexpar
603  * Example of how to display all the IPv4 Multicast FIB tables:
604  * @cliexstart{show ip fib}
605  * ipv4-VRF:0, fib_index 0
606  * (*, 0.0.0.0/0): flags:D,
607  * Interfaces:
608  * multicast-ip4-chain
609  * [@1]: dpo-drop ip4
610  * (*, 232.1.1.1/32):
611  * Interfaces:
612  * test-eth1: Forward,
613  * test-eth2: Forward,
614  * test-eth0: Accept,
615  * multicast-ip4-chain
616  * [@2]: dpo-replicate: [index:1 buckets:2 to:[0:0]]
617  * [0] [@1]: ipv4-mcast: test-eth1: IP4: d0:d1:d2:d3:d4:01 -> 01:00:05:00:00:00
618  * [1] [@1]: ipv4-mcast: test-eth2: IP4: d0:d1:d2:d3:d4:02 -> 01:00:05:00:00:00
619  *
620  * @cliexend
621  * Example of how to display a summary of all IPv4 FIB tables:
622  * @cliexstart{show ip fib summary}
623  * ipv4-VRF:0, fib_index 0, flow hash: src dst sport dport proto
624  * Prefix length Count
625  * 0 1
626  * 8 2
627  * 32 4
628  * ipv4-VRF:7, fib_index 1, flow hash: src dst sport dport proto
629  * Prefix length Count
630  * 0 1
631  * 8 2
632  * 24 2
633  * 32 4
634  * @cliexend
635  ?*/
636 /* *INDENT-OFF* */
638  .path = "show ip mfib",
639  .short_help = "show ip mfib [summary] [table <table-id>] [index <fib-id>] [<grp-addr>[/<mask>]] [<grp-addr>] [<src-addr> <grp-addr>]",
640  .function = ip4_show_mfib,
641 };
642 /* *INDENT-ON* */
format_ip4_mfib_table_memory
u8 * format_ip4_mfib_table_memory(u8 *s, va_list *args)
format (display) the memory usage for IP4 mfibs
Definition: ip4_mfib.c:392
ip4_mfib_table_show_all
static void ip4_mfib_table_show_all(ip4_mfib_t *mfib, vlib_main_t *vm)
Definition: ip4_mfib.c:428
ip4_mfib_interface_enable_disable
void ip4_mfib_interface_enable_disable(u32 sw_if_index, int is_enable)
Add/remove the interface from the accepting list of the special MFIB entries.
Definition: ip4_mfib.c:132
all_zeros
static const mfib_prefix_t all_zeros
Definition: ip4_mfib.c:21
zero_addr
const ip46_address_t zero_addr
#include <vnet/feature/feature.h>
Definition: lookup.c:182
ip4_main
ip4_main_t ip4_main
Global ip4 main structure.
Definition: ip4_forward.c:1105
hash_set_flags
static void hash_set_flags(void *v, uword flags)
Definition: hash.h:153
ip4_mfib_table_entry_insert
void ip4_mfib_table_entry_insert(ip4_mfib_t *mfib, const ip4_address_t *grp, const ip4_address_t *src, u32 len, fib_node_index_t fib_entry_index)
Definition: ip4_mfib.c:311
MFIB_ITF_FLAG_ACCEPT
@ MFIB_ITF_FLAG_ACCEPT
Definition: mfib_types.h:152
ip4_show_mfib_command
static vlib_cli_command_t ip4_show_mfib_command
(constructor) VLIB_CLI_COMMAND (ip4_show_mfib_command)
Definition: ip4_mfib.c:637
ip4_mfib_table_lookup_exact_match
fib_node_index_t ip4_mfib_table_lookup_exact_match(const ip4_mfib_t *mfib, const ip4_address_t *grp, const ip4_address_t *src, u32 len)
Definition: ip4_mfib.c:216
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
ip4_mfib_table_show_one
static void ip4_mfib_table_show_one(ip4_mfib_t *mfib, vlib_main_t *vm, ip4_address_t *src, ip4_address_t *grp, u32 mask_len)
Definition: ip4_mfib.c:466
mfib_table_t_::mft_total_route_counts
u32 mft_total_route_counts
Total route counters.
Definition: mfib_table.h:122
mfib_prefix_t_
Aggregate type for a prefix.
Definition: mfib_types.h:24
ip4_mfib_index_from_table_id
static u32 ip4_mfib_index_from_table_id(u32 table_id)
Definition: ip4_mfib.h:91
path
vl_api_fib_path_t path
Definition: mfib_types.api:44
vlib_cli_command_t::path
char * path
Definition: cli.h:96
mfib_entry.h
FIB_NODE_INDEX_INVALID
#define FIB_NODE_INDEX_INVALID
Definition: fib_types.h:30
pool_put
#define pool_put(P, E)
Free an object E in pool P.
Definition: pool.h:305
vm
vlib_main_t * vm
X-connect all packets from the HOST to the PHY.
Definition: nat44_ei.c:3047
HASH_FLAG_NO_AUTO_SHRINK
#define HASH_FLAG_NO_AUTO_SHRINK
Definition: hash.h:64
MFIB_ENTRY_FORMAT_BRIEF
#define MFIB_ENTRY_FORMAT_BRIEF
Definition: mfib_entry.h:110
unformat_input_t
struct _unformat_input_t unformat_input_t
hash_create
#define hash_create(elts, value_bytes)
Definition: hash.h:695
ip4_mfib.h
mfib_table_t_
A protocol Independent IP multicast FIB table.
Definition: mfib_table.h:71
IP4_MFIB_MK_GRP_KEY
#define IP4_MFIB_MK_GRP_KEY(_grp, _len, _key)
Definition: ip4_mfib.c:204
key
typedef key
Definition: ipsec_types.api:88
i32
signed int i32
Definition: types.h:77
hash_foreach_pair
#define hash_foreach_pair(p, v, body)
Iterate over hash pairs.
Definition: hash.h:373
unformat
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:978
hash_set
#define hash_set(h, key, value)
Definition: hash.h:255
MFIB_SOURCE_SPECIAL
@ MFIB_SOURCE_SPECIAL
Definition: mfib_types.h:163
mfib_table_lock
void mfib_table_lock(u32 fib_index, fib_protocol_t proto, mfib_source_t source)
Release a reference counting lock on the table.
Definition: mfib_table.c:806
pool_foreach
#define pool_foreach(VAR, POOL)
Iterate through pool.
Definition: pool.h:534
ip4_mfib_t::table_id
u32 table_id
Definition: ip4.h:58
mfib_source_t
enum mfib_source_t_ mfib_source_t
Possible [control plane] sources of MFIB entries.
mfib_table_t_::mft_index
fib_node_index_t mft_index
Index into FIB vector.
Definition: mfib_table.h:117
vec_len
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
Definition: vec_bootstrap.h:142
len
u8 len
Definition: ip_types.api:103
ip4_mfib_table_destroy
void ip4_mfib_table_destroy(ip4_mfib_t *mfib)
Definition: ip4_mfib.c:102
vec_add1
#define vec_add1(V, E)
Add 1 element to end of vector (unspecified alignment).
Definition: vec.h:606
hash_pair_t::value
uword value[0]
Definition: hash.h:165
memory
vhost_user_memory_t memory
Definition: vhost_user.h:131
ARRAY_LEN
#define ARRAY_LEN(x)
Definition: clib.h:70
format_mfib_table_flags
u8 * format_mfib_table_flags(u8 *s, va_list *args)
Definition: mfib_table.c:848
unformat_check_input
static uword unformat_check_input(unformat_input_t *i)
Definition: format.h:163
ip4_create_mfib_with_table_id
static u32 ip4_create_mfib_with_table_id(u32 table_id, mfib_source_t src)
Definition: ip4_mfib.c:47
mfib_table_walk_fn_t
walk_rc_t(* mfib_table_walk_fn_t)(fib_node_index_t fei, void *ctx)
Call back function when walking entries in a FIB table.
Definition: mfib_table.h:554
fib_node_index_t
u32 fib_node_index_t
A typedef of a node index.
Definition: fib_types.h:29
uword
u64 uword
Definition: types.h:112
MFIB_SOURCE_DEFAULT_ROUTE
@ MFIB_SOURCE_DEFAULT_ROUTE
Definition: mfib_types.h:177
hash_get
#define hash_get(h, key)
Definition: hash.h:249
ip4_main_t::mfib_index_by_table_id
uword * mfib_index_by_table_id
Hash table mapping table id to multicast fib index.
Definition: ip4.h:137
i
sll srl srl sll sra u16x4 i
Definition: vector_sse42.h:261
ip4_mfib_table_get_index_for_sw_if_index
u32 ip4_mfib_table_get_index_for_sw_if_index(u32 sw_if_index)
Definition: ip4_mfib.c:182
mask
vl_api_pnat_mask_t mask
Definition: pnat.api:45
vec_validate
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment)
Definition: vec.h:523
VLIB_CLI_COMMAND
#define VLIB_CLI_COMMAND(x,...)
Definition: cli.h:163
ip4_specials
static const mfib_prefix_t ip4_specials[]
Definition: ip4_mfib.c:25
src
vl_api_address_t src
Definition: gre.api:54
ip4_mfib_t::index
u32 index
Definition: ip4.h:61
ip4_mfib_t::fib_entry_by_dst_address
uword * fib_entry_by_dst_address[65]
Definition: ip4.h:55
format_mfib_entry
u8 * format_mfib_entry(u8 *s, va_list *args)
Definition: mfib_entry.c:126
ip4_address_t
Definition: ip4_packet.h:50
FIB_PROTOCOL_IP4
@ FIB_PROTOCOL_IP4
Definition: fib_types.h:36
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
vlib_cli_output
void vlib_cli_output(vlib_main_t *vm, char *fmt,...)
Definition: cli.c:716
hash_elts
static uword hash_elts(void *v)
Definition: hash.h:118
vec_free
#define vec_free(V)
Free vector's memory (no header).
Definition: vec.h:395
mfib_entry_cmp_for_sort
int mfib_entry_cmp_for_sort(void *i1, void *i2)
Definition: mfib_entry.c:1313
index
u32 index
Definition: flow_types.api:221
ip4_main_t::mfib_index_by_sw_if_index
u32 * mfib_index_by_sw_if_index
Table index indexed by software interface.
Definition: ip4.h:126
mfib_table_t_::mft_proto
fib_protocol_t mft_proto
Which protocol this table serves.
Definition: mfib_table.h:92
u64
unsigned long u64
Definition: types.h:89
mfib_prefix_t_::fp_grp_addr
ip46_address_t fp_grp_addr
The address type is not deriveable from the fp_addr member.
Definition: mfib_types.h:46
ip4_mfib_table_entry_remove
void ip4_mfib_table_entry_remove(ip4_mfib_t *mfib, const ip4_address_t *grp, const ip4_address_t *src, u32 len)
Definition: ip4_mfib.c:342
format
description fragment has unexpected format
Definition: map.api:433
ASSERT
#define ASSERT(truth)
Definition: error_bootstrap.h:69
ip4_mfib_t
Definition: ip4.h:52
mfib_table_t_::mft_table_id
u32 mft_table_id
Table ID (hash key) for this FIB.
Definition: mfib_table.h:107
u32
unsigned int u32
Definition: types.h:88
MFIB_RPF_ID_NONE
#define MFIB_RPF_ID_NONE
Definition: fib_types.h:423
table_id
u32 table_id
Definition: wireguard.api:102
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
vec_foreach
#define vec_foreach(var, vec)
Vector iterator.
Definition: vec_bootstrap.h:213
ip4_mfib_table_lookup
fib_node_index_t ip4_mfib_table_lookup(const ip4_mfib_t *mfib, const ip4_address_t *src, const ip4_address_t *grp, u32 len)
The IPv4 Multicast-FIB.
Definition: ip4_mfib.c:241
pool_elts
static uword pool_elts(void *v)
Number of active elements in a pool.
Definition: pool.h:127
hash_unset
#define hash_unset(h, key)
Definition: hash.h:261
vec_sort_with_function
#define vec_sort_with_function(vec, f)
Sort a vector using the supplied element comparison function.
Definition: vec.h:1097
mfib_table_entry_path_remove
void mfib_table_entry_path_remove(u32 fib_index, const mfib_prefix_t *prefix, mfib_source_t source, const fib_route_path_t *rpath)
Remove n paths to an entry (aka route) in the FIB.
Definition: mfib_table.c:407
ip4_main_t::mfibs
struct mfib_table_t_ * mfibs
Vector of MFIBs.
Definition: ip4.h:118
clib_memset
clib_memset(h->entries, 0, sizeof(h->entries[0]) *entries)
vlib_main_t
Definition: main.h:102
ip4_mfib_table_find_or_create_and_lock
u32 ip4_mfib_table_find_or_create_and_lock(u32 table_id, mfib_source_t src)
Get or create an IPv4 fib.
Definition: ip4_mfib.c:168
ip4_mfib_table_get_less_specific
fib_node_index_t ip4_mfib_table_get_less_specific(const ip4_mfib_t *mfib, const ip4_address_t *src, const ip4_address_t *grp, u32 len)
Definition: ip4_mfib.c:279
u8
unsigned char u8
Definition: types.h:56
clib_error_t
Definition: clib_error.h:21
MFIB_ENTRY_FLAG_DROP
@ MFIB_ENTRY_FLAG_DROP
Definition: mfib_types.h:109
mfib_table_entry_update
fib_node_index_t mfib_table_entry_update(u32 fib_index, const mfib_prefix_t *prefix, mfib_source_t source, fib_rpf_id_t rpf_id, mfib_entry_flags_t entry_flags)
Add a new (with no replication) or lock an existing entry.
Definition: mfib_table.c:237
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
ip4_mfib_table_walk
void ip4_mfib_table_walk(ip4_mfib_t *mfib, mfib_table_walk_fn_t fn, void *ctx)
Walk the IP4 mfib table.
Definition: ip4_mfib.c:369
DPO_PROTO_IP4
@ DPO_PROTO_IP4
Definition: dpo.h:64
hash_bytes
__clib_export uword hash_bytes(void *v)
Definition: hash.c:994
MFIB_ITF_FLAG_FORWARD
@ MFIB_ITF_FLAG_FORWARD
Definition: mfib_types.h:153
ip4_show_mfib
static clib_error_t * ip4_show_mfib(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: ip4_mfib.c:479
unformat_ip4_address
unformat_function_t unformat_ip4_address
Definition: format.h:68
IP4_MFIB_MK_KEY
#define IP4_MFIB_MK_KEY(_grp, _src, _len, _key)
Definition: ip4_mfib.c:198
vlib_cli_command_t
Definition: cli.h:92
format_mfib_table_name
u8 * format_mfib_table_name(u8 *s, va_list *ap)
Format the description/name of the table.
Definition: mfib_table.c:868
PREDICT_TRUE
#define PREDICT_TRUE(x)
Definition: clib.h:125
ip4_main_t
IPv4 main type.
Definition: ip4.h:107
mfib_table_t_::v4
ip4_mfib_t v4
Definition: mfib_table.h:85
sw_if_index
vl_api_interface_index_t sw_if_index
Definition: wireguard.api:34
mfib_table_t_::mft_flags
mfib_table_flags_t mft_flags
table falgs
Definition: mfib_table.h:97
FIB_ROUTE_PATH_LOCAL
@ FIB_ROUTE_PATH_LOCAL
A for-us/local path.
Definition: fib_types.h:344
mfib_table_entry_delete
void mfib_table_entry_delete(u32 fib_index, const mfib_prefix_t *prefix, mfib_source_t source)
Delete a FIB entry.
Definition: mfib_table.c:493
UNFORMAT_END_OF_INPUT
#define UNFORMAT_END_OF_INPUT
Definition: format.h:137
hash_pair_t
Definition: hash.h:159
MFIB_ENTRY_FORMAT_DETAIL
#define MFIB_ENTRY_FORMAT_DETAIL
Definition: mfib_entry.h:111