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12e41d03 DL |
1 | /* |
2 | PIM for Quagga | |
3 | Copyright (C) 2008 Everton da Silva Marques | |
4 | This program is free software; you can redistribute it and/or modify | |
5 | it under the terms of the GNU General Public License as published by | |
6 | the Free Software Foundation; either version 2 of the License, or | |
7 | (at your option) any later version. | |
8 | ||
9 | This program is distributed in the hope that it will be useful, but | |
10 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | General Public License for more details. | |
ac4d0be5 | 13 | |
12e41d03 DL |
14 | You should have received a copy of the GNU General Public License |
15 | along with this program; see the file COPYING; if not, write to the | |
16 | Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, | |
17 | MA 02110-1301 USA | |
12e41d03 DL |
18 | */ |
19 | ||
20 | #include <zebra.h> | |
21 | ||
22 | #include "if.h" | |
23 | #include "log.h" | |
24 | #include "vty.h" | |
25 | #include "memory.h" | |
26 | #include "prefix.h" | |
469351b3 | 27 | #include "vrf.h" |
9f0edbc9 | 28 | #include "linklist.h" |
7176984f | 29 | #include "plist.h" |
a625e937 | 30 | #include "hash.h" |
12e41d03 DL |
31 | |
32 | #include "pimd.h" | |
633988a7 | 33 | #include "pim_zebra.h" |
12e41d03 DL |
34 | #include "pim_iface.h" |
35 | #include "pim_igmp.h" | |
36 | #include "pim_mroute.h" | |
37 | #include "pim_oil.h" | |
38 | #include "pim_str.h" | |
39 | #include "pim_pim.h" | |
40 | #include "pim_neighbor.h" | |
41 | #include "pim_ifchannel.h" | |
12e41d03 DL |
42 | #include "pim_sock.h" |
43 | #include "pim_time.h" | |
44 | #include "pim_ssmpingd.h" | |
7176984f | 45 | #include "pim_rp.h" |
633988a7 | 46 | #include "pim_nht.h" |
12e41d03 | 47 | |
c992c9a0 | 48 | struct interface *pim_regiface = NULL; |
ea4a71fc | 49 | struct list *pim_ifchannel_list = NULL; |
dc0665f1 | 50 | static int pim_iface_vif_index[MAXVIFS]; |
c992c9a0 | 51 | |
12e41d03 | 52 | static void pim_if_igmp_join_del_all(struct interface *ifp); |
dba88ccb | 53 | static int igmp_join_sock(const char *ifname, ifindex_t ifindex, |
ac4d0be5 | 54 | struct in_addr group_addr, |
55 | struct in_addr source_addr); | |
12e41d03 | 56 | |
ac4d0be5 | 57 | void pim_if_init(void) |
ea4a71fc | 58 | { |
ac4d0be5 | 59 | int i; |
dc0665f1 | 60 | |
ac4d0be5 | 61 | for (i = 0; i < MAXVIFS; i++) |
62 | pim_iface_vif_index[i] = 0; | |
dc0665f1 | 63 | |
ac4d0be5 | 64 | vrf_iflist_create(VRF_DEFAULT); |
65 | pim_ifchannel_list = list_new(); | |
66 | pim_ifchannel_list->cmp = | |
67 | (int (*)(void *, void *))pim_ifchannel_compare; | |
ea4a71fc DS |
68 | } |
69 | ||
ac4d0be5 | 70 | void pim_if_terminate(void) |
ea4a71fc | 71 | { |
ac4d0be5 | 72 | if (pim_ifchannel_list) |
73 | list_free(pim_ifchannel_list); | |
ea4a71fc DS |
74 | } |
75 | ||
76 | static void *if_list_clean(struct pim_interface *pim_ifp) | |
77 | { | |
ac4d0be5 | 78 | if (pim_ifp->igmp_join_list) { |
79 | list_delete(pim_ifp->igmp_join_list); | |
80 | } | |
ea4a71fc | 81 | |
ac4d0be5 | 82 | if (pim_ifp->igmp_socket_list) { |
83 | list_delete(pim_ifp->igmp_socket_list); | |
84 | } | |
ea4a71fc | 85 | |
ac4d0be5 | 86 | if (pim_ifp->pim_neighbor_list) { |
87 | list_delete(pim_ifp->pim_neighbor_list); | |
88 | } | |
ea4a71fc | 89 | |
ac4d0be5 | 90 | if (pim_ifp->upstream_switch_list) |
91 | list_delete(pim_ifp->upstream_switch_list); | |
982bff89 | 92 | |
ac4d0be5 | 93 | if (pim_ifp->pim_ifchannel_list) { |
94 | list_delete(pim_ifp->pim_ifchannel_list); | |
95 | } | |
ea4a71fc | 96 | |
ac4d0be5 | 97 | if (pim_ifp->pim_ifchannel_hash) |
98 | hash_free(pim_ifp->pim_ifchannel_hash); | |
a625e937 | 99 | |
ac4d0be5 | 100 | XFREE(MTYPE_PIM_INTERFACE, pim_ifp); |
ea4a71fc | 101 | |
ac4d0be5 | 102 | return 0; |
ea4a71fc DS |
103 | } |
104 | ||
12e41d03 DL |
105 | struct pim_interface *pim_if_new(struct interface *ifp, int igmp, int pim) |
106 | { | |
ac4d0be5 | 107 | struct pim_interface *pim_ifp; |
108 | ||
109 | zassert(ifp); | |
110 | zassert(!ifp->info); | |
111 | ||
112 | pim_ifp = XCALLOC(MTYPE_PIM_INTERFACE, sizeof(*pim_ifp)); | |
113 | if (!pim_ifp) { | |
114 | zlog_err("PIM XCALLOC(%zu) failure", sizeof(*pim_ifp)); | |
115 | return 0; | |
116 | } | |
117 | ||
118 | pim_ifp->options = 0; | |
119 | pim_ifp->mroute_vif_index = -1; | |
120 | ||
121 | pim_ifp->igmp_version = IGMP_DEFAULT_VERSION; | |
122 | pim_ifp->igmp_default_robustness_variable = | |
123 | IGMP_DEFAULT_ROBUSTNESS_VARIABLE; | |
124 | pim_ifp->igmp_default_query_interval = IGMP_GENERAL_QUERY_INTERVAL; | |
125 | pim_ifp->igmp_query_max_response_time_dsec = | |
126 | IGMP_QUERY_MAX_RESPONSE_TIME_DSEC; | |
127 | pim_ifp->igmp_specific_query_max_response_time_dsec = | |
128 | IGMP_SPECIFIC_QUERY_MAX_RESPONSE_TIME_DSEC; | |
129 | ||
130 | /* | |
131 | RFC 3376: 8.3. Query Response Interval | |
132 | The number of seconds represented by the [Query Response Interval] | |
133 | must be less than the [Query Interval]. | |
134 | */ | |
135 | zassert(pim_ifp->igmp_query_max_response_time_dsec | |
136 | < pim_ifp->igmp_default_query_interval); | |
137 | ||
138 | if (pim) | |
139 | PIM_IF_DO_PIM(pim_ifp->options); | |
140 | if (igmp) | |
141 | PIM_IF_DO_IGMP(pim_ifp->options); | |
142 | ||
143 | PIM_IF_DO_IGMP_LISTEN_ALLROUTERS(pim_ifp->options); | |
144 | ||
145 | pim_ifp->igmp_join_list = NULL; | |
146 | pim_ifp->igmp_socket_list = NULL; | |
147 | pim_ifp->pim_neighbor_list = NULL; | |
148 | pim_ifp->upstream_switch_list = NULL; | |
149 | pim_ifp->pim_ifchannel_list = NULL; | |
150 | pim_ifp->pim_ifchannel_hash = NULL; | |
151 | pim_ifp->pim_generation_id = 0; | |
152 | ||
153 | /* list of struct igmp_sock */ | |
154 | pim_ifp->igmp_socket_list = list_new(); | |
155 | if (!pim_ifp->igmp_socket_list) { | |
156 | zlog_err("%s %s: failure: igmp_socket_list=list_new()", | |
157 | __FILE__, __PRETTY_FUNCTION__); | |
158 | return if_list_clean(pim_ifp); | |
159 | } | |
160 | pim_ifp->igmp_socket_list->del = (void (*)(void *))igmp_sock_free; | |
161 | ||
162 | /* list of struct pim_neighbor */ | |
163 | pim_ifp->pim_neighbor_list = list_new(); | |
164 | if (!pim_ifp->pim_neighbor_list) { | |
165 | zlog_err("%s %s: failure: pim_neighbor_list=list_new()", | |
166 | __FILE__, __PRETTY_FUNCTION__); | |
167 | return if_list_clean(pim_ifp); | |
168 | } | |
169 | pim_ifp->pim_neighbor_list->del = (void (*)(void *))pim_neighbor_free; | |
170 | ||
171 | pim_ifp->upstream_switch_list = list_new(); | |
172 | if (!pim_ifp->upstream_switch_list) { | |
173 | zlog_err("%s %s: failure: upstream_switch_list=list_new()", | |
174 | __FILE__, __PRETTY_FUNCTION__); | |
175 | return if_list_clean(pim_ifp); | |
176 | } | |
177 | ||
178 | /* list of struct pim_ifchannel */ | |
179 | pim_ifp->pim_ifchannel_list = list_new(); | |
180 | if (!pim_ifp->pim_ifchannel_list) { | |
181 | zlog_err("%s %s: failure: pim_ifchannel_list=list_new()", | |
182 | __FILE__, __PRETTY_FUNCTION__); | |
183 | return if_list_clean(pim_ifp); | |
184 | } | |
185 | pim_ifp->pim_ifchannel_list->del = (void (*)(void *))pim_ifchannel_free; | |
186 | pim_ifp->pim_ifchannel_list->cmp = | |
187 | (int (*)(void *, void *))pim_ifchannel_compare; | |
188 | ||
189 | pim_ifp->pim_ifchannel_hash = | |
190 | hash_create(pim_ifchannel_hash_key, pim_ifchannel_equal); | |
191 | ||
192 | ifp->info = pim_ifp; | |
193 | ||
194 | pim_sock_reset(ifp); | |
195 | ||
196 | pim_if_add_vif(ifp); | |
197 | ||
198 | return pim_ifp; | |
12e41d03 DL |
199 | } |
200 | ||
201 | void pim_if_delete(struct interface *ifp) | |
202 | { | |
ac4d0be5 | 203 | struct pim_interface *pim_ifp; |
12e41d03 | 204 | |
ac4d0be5 | 205 | zassert(ifp); |
206 | pim_ifp = ifp->info; | |
207 | zassert(pim_ifp); | |
12e41d03 | 208 | |
ac4d0be5 | 209 | if (pim_ifp->igmp_join_list) { |
210 | pim_if_igmp_join_del_all(ifp); | |
211 | } | |
12e41d03 | 212 | |
ac4d0be5 | 213 | pim_ifchannel_delete_all(ifp); |
214 | igmp_sock_delete_all(ifp); | |
12e41d03 | 215 | |
ac4d0be5 | 216 | pim_neighbor_delete_all(ifp, "Interface removed from configuration"); |
12e41d03 | 217 | |
ac4d0be5 | 218 | pim_if_del_vif(ifp); |
12e41d03 | 219 | |
ac4d0be5 | 220 | list_delete(pim_ifp->igmp_socket_list); |
221 | list_delete(pim_ifp->pim_neighbor_list); | |
222 | list_delete(pim_ifp->upstream_switch_list); | |
223 | list_delete(pim_ifp->pim_ifchannel_list); | |
12e41d03 | 224 | |
ac4d0be5 | 225 | hash_free(pim_ifp->pim_ifchannel_hash); |
a625e937 | 226 | |
ac4d0be5 | 227 | XFREE(MTYPE_PIM_INTERFACE, pim_ifp); |
12e41d03 | 228 | |
ac4d0be5 | 229 | ifp->info = NULL; |
12e41d03 DL |
230 | } |
231 | ||
232 | void pim_if_update_could_assert(struct interface *ifp) | |
233 | { | |
ac4d0be5 | 234 | struct pim_interface *pim_ifp; |
235 | struct listnode *node; | |
236 | struct listnode *next_node; | |
237 | struct pim_ifchannel *ch; | |
12e41d03 | 238 | |
ac4d0be5 | 239 | pim_ifp = ifp->info; |
240 | zassert(pim_ifp); | |
12e41d03 | 241 | |
ac4d0be5 | 242 | for (ALL_LIST_ELEMENTS(pim_ifp->pim_ifchannel_list, node, next_node, |
243 | ch)) { | |
244 | pim_ifchannel_update_could_assert(ch); | |
245 | } | |
12e41d03 DL |
246 | } |
247 | ||
248 | static void pim_if_update_my_assert_metric(struct interface *ifp) | |
249 | { | |
ac4d0be5 | 250 | struct pim_interface *pim_ifp; |
251 | struct listnode *node; | |
252 | struct listnode *next_node; | |
253 | struct pim_ifchannel *ch; | |
12e41d03 | 254 | |
ac4d0be5 | 255 | pim_ifp = ifp->info; |
256 | zassert(pim_ifp); | |
12e41d03 | 257 | |
ac4d0be5 | 258 | for (ALL_LIST_ELEMENTS(pim_ifp->pim_ifchannel_list, node, next_node, |
259 | ch)) { | |
260 | pim_ifchannel_update_my_assert_metric(ch); | |
261 | } | |
12e41d03 DL |
262 | } |
263 | ||
264 | static void pim_addr_change(struct interface *ifp) | |
265 | { | |
ac4d0be5 | 266 | struct pim_interface *pim_ifp; |
267 | ||
268 | pim_ifp = ifp->info; | |
269 | zassert(pim_ifp); | |
270 | ||
271 | pim_if_dr_election(ifp); /* router's own DR Priority (addr) changes -- | |
272 | Done TODO T30 */ | |
273 | pim_if_update_join_desired(pim_ifp); /* depends on DR */ | |
274 | pim_if_update_could_assert(ifp); /* depends on DR */ | |
275 | pim_if_update_my_assert_metric(ifp); /* depends on could_assert */ | |
276 | pim_if_update_assert_tracking_desired( | |
277 | ifp); /* depends on DR, join_desired */ | |
278 | ||
279 | /* | |
280 | RFC 4601: 4.3.1. Sending Hello Messages | |
281 | ||
282 | 1) Before an interface goes down or changes primary IP address, a | |
283 | Hello message with a zero HoldTime should be sent immediately | |
284 | (with the old IP address if the IP address changed). | |
285 | -- FIXME See CAVEAT C13 | |
286 | ||
287 | 2) After an interface has changed its IP address, it MUST send a | |
288 | Hello message with its new IP address. | |
289 | -- DONE below | |
290 | ||
291 | 3) If an interface changes one of its secondary IP addresses, a | |
292 | Hello message with an updated Address_List option and a non-zero | |
293 | HoldTime should be sent immediately. | |
294 | -- FIXME See TODO T31 | |
295 | */ | |
296 | pim_ifp->pim_ifstat_hello_sent = 0; /* reset hello counter */ | |
297 | if (pim_ifp->pim_sock_fd < 0) | |
298 | return; | |
299 | pim_hello_restart_now(ifp); /* send hello and restart timer */ | |
12e41d03 DL |
300 | } |
301 | ||
12e41d03 DL |
302 | static int detect_primary_address_change(struct interface *ifp, |
303 | int force_prim_as_any, | |
304 | const char *caller) | |
305 | { | |
ac4d0be5 | 306 | struct pim_interface *pim_ifp = ifp->info; |
307 | struct in_addr new_prim_addr; | |
308 | int changed; | |
309 | ||
310 | if (force_prim_as_any) | |
311 | new_prim_addr = qpim_inaddr_any; | |
312 | else | |
313 | new_prim_addr = pim_find_primary_addr(ifp); | |
314 | ||
315 | changed = new_prim_addr.s_addr != pim_ifp->primary_address.s_addr; | |
316 | ||
317 | if (PIM_DEBUG_ZEBRA) { | |
318 | char new_prim_str[INET_ADDRSTRLEN]; | |
319 | char old_prim_str[INET_ADDRSTRLEN]; | |
320 | pim_inet4_dump("<new?>", new_prim_addr, new_prim_str, | |
321 | sizeof(new_prim_str)); | |
322 | pim_inet4_dump("<old?>", pim_ifp->primary_address, old_prim_str, | |
323 | sizeof(old_prim_str)); | |
324 | zlog_debug("%s: old=%s new=%s on interface %s: %s", | |
325 | __PRETTY_FUNCTION__, old_prim_str, new_prim_str, | |
326 | ifp->name, changed ? "changed" : "unchanged"); | |
327 | } | |
328 | ||
329 | if (changed) { | |
330 | pim_ifp->primary_address = new_prim_addr; | |
331 | } | |
332 | ||
333 | return changed; | |
12e41d03 DL |
334 | } |
335 | ||
7176984f | 336 | static int pim_sec_addr_comp(const void *p1, const void *p2) |
337 | { | |
ac4d0be5 | 338 | const struct pim_secondary_addr *sec1 = p1; |
339 | const struct pim_secondary_addr *sec2 = p2; | |
7176984f | 340 | |
ac4d0be5 | 341 | if (ntohl(sec1->addr.s_addr) < ntohl(sec2->addr.s_addr)) |
342 | return -1; | |
7176984f | 343 | |
ac4d0be5 | 344 | if (ntohl(sec1->addr.s_addr) > ntohl(sec2->addr.s_addr)) |
345 | return 1; | |
7176984f | 346 | |
ac4d0be5 | 347 | return 0; |
7176984f | 348 | } |
349 | ||
350 | static void pim_sec_addr_free(struct pim_secondary_addr *sec_addr) | |
351 | { | |
ac4d0be5 | 352 | XFREE(MTYPE_PIM_SEC_ADDR, sec_addr); |
7176984f | 353 | } |
354 | ||
355 | static struct pim_secondary_addr * | |
356 | pim_sec_addr_find(struct pim_interface *pim_ifp, struct in_addr addr) | |
357 | { | |
ac4d0be5 | 358 | struct pim_secondary_addr *sec_addr; |
359 | struct listnode *node; | |
7176984f | 360 | |
ac4d0be5 | 361 | if (!pim_ifp->sec_addr_list) { |
362 | return NULL; | |
363 | } | |
7176984f | 364 | |
ac4d0be5 | 365 | for (ALL_LIST_ELEMENTS_RO(pim_ifp->sec_addr_list, node, sec_addr)) { |
366 | if (sec_addr->addr.s_addr == addr.s_addr) { | |
367 | return sec_addr; | |
368 | } | |
369 | } | |
7176984f | 370 | |
ac4d0be5 | 371 | return NULL; |
7176984f | 372 | } |
373 | ||
374 | static void pim_sec_addr_del(struct pim_interface *pim_ifp, | |
ac4d0be5 | 375 | struct pim_secondary_addr *sec_addr) |
7176984f | 376 | { |
ac4d0be5 | 377 | listnode_delete(pim_ifp->sec_addr_list, sec_addr); |
378 | pim_sec_addr_free(sec_addr); | |
7176984f | 379 | } |
380 | ||
381 | static int pim_sec_addr_add(struct pim_interface *pim_ifp, struct in_addr addr) | |
382 | { | |
ac4d0be5 | 383 | int changed = 0; |
384 | struct pim_secondary_addr *sec_addr; | |
385 | ||
386 | sec_addr = pim_sec_addr_find(pim_ifp, addr); | |
387 | if (sec_addr) { | |
388 | sec_addr->flags &= ~PIM_SEC_ADDRF_STALE; | |
389 | return changed; | |
390 | } | |
391 | ||
392 | if (!pim_ifp->sec_addr_list) { | |
393 | pim_ifp->sec_addr_list = list_new(); | |
394 | pim_ifp->sec_addr_list->del = | |
395 | (void (*)(void *))pim_sec_addr_free; | |
396 | pim_ifp->sec_addr_list->cmp = | |
397 | (int (*)(void *, void *))pim_sec_addr_comp; | |
398 | } | |
399 | ||
400 | sec_addr = XCALLOC(MTYPE_PIM_SEC_ADDR, sizeof(*sec_addr)); | |
401 | if (!sec_addr) { | |
402 | if (list_isempty(pim_ifp->sec_addr_list)) { | |
403 | list_free(pim_ifp->sec_addr_list); | |
404 | pim_ifp->sec_addr_list = NULL; | |
405 | } | |
406 | return changed; | |
407 | } | |
408 | ||
409 | changed = 1; | |
410 | sec_addr->addr = addr; | |
411 | listnode_add_sort(pim_ifp->sec_addr_list, sec_addr); | |
412 | ||
413 | return changed; | |
7176984f | 414 | } |
415 | ||
416 | static int pim_sec_addr_del_all(struct pim_interface *pim_ifp) | |
417 | { | |
ac4d0be5 | 418 | int changed = 0; |
419 | ||
420 | if (!pim_ifp->sec_addr_list) { | |
421 | return changed; | |
422 | } | |
423 | if (!list_isempty(pim_ifp->sec_addr_list)) { | |
424 | changed = 1; | |
425 | /* remove all nodes and free up the list itself */ | |
426 | list_delete_all_node(pim_ifp->sec_addr_list); | |
427 | list_free(pim_ifp->sec_addr_list); | |
428 | pim_ifp->sec_addr_list = NULL; | |
429 | } | |
430 | ||
431 | return changed; | |
7176984f | 432 | } |
433 | ||
434 | static int pim_sec_addr_update(struct interface *ifp) | |
435 | { | |
ac4d0be5 | 436 | struct pim_interface *pim_ifp = ifp->info; |
437 | struct connected *ifc; | |
438 | struct listnode *node; | |
439 | struct listnode *nextnode; | |
440 | struct pim_secondary_addr *sec_addr; | |
441 | int changed = 0; | |
442 | ||
443 | if (pim_ifp->sec_addr_list) { | |
444 | for (ALL_LIST_ELEMENTS_RO(pim_ifp->sec_addr_list, node, | |
445 | sec_addr)) { | |
446 | sec_addr->flags |= PIM_SEC_ADDRF_STALE; | |
447 | } | |
448 | } | |
449 | ||
450 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, ifc)) { | |
451 | struct prefix *p = ifc->address; | |
452 | ||
453 | if (p->family != AF_INET) { | |
454 | continue; | |
455 | } | |
456 | ||
457 | if (PIM_INADDR_IS_ANY(p->u.prefix4)) { | |
458 | continue; | |
459 | } | |
460 | ||
461 | if (pim_ifp->primary_address.s_addr == p->u.prefix4.s_addr) { | |
462 | /* don't add the primary address into the secondary | |
463 | * address list */ | |
464 | continue; | |
465 | } | |
466 | ||
467 | if (pim_sec_addr_add(pim_ifp, p->u.prefix4)) { | |
468 | changed = 1; | |
469 | } | |
470 | } | |
471 | ||
472 | if (pim_ifp->sec_addr_list) { | |
473 | /* Drop stale entries */ | |
474 | for (ALL_LIST_ELEMENTS(pim_ifp->sec_addr_list, node, nextnode, | |
475 | sec_addr)) { | |
476 | if (sec_addr->flags & PIM_SEC_ADDRF_STALE) { | |
477 | pim_sec_addr_del(pim_ifp, sec_addr); | |
478 | changed = 1; | |
479 | } | |
480 | } | |
481 | ||
482 | /* If the list went empty free it up */ | |
483 | if (list_isempty(pim_ifp->sec_addr_list)) { | |
484 | list_free(pim_ifp->sec_addr_list); | |
485 | pim_ifp->sec_addr_list = NULL; | |
486 | } | |
487 | } | |
488 | ||
489 | return changed; | |
7176984f | 490 | } |
491 | ||
4763cd0e | 492 | static int detect_secondary_address_change(struct interface *ifp, |
ac4d0be5 | 493 | int force_prim_as_any, |
494 | const char *caller) | |
12e41d03 | 495 | { |
ac4d0be5 | 496 | struct pim_interface *pim_ifp = ifp->info; |
497 | int changed = 0; | |
498 | ||
499 | if (force_prim_as_any) { | |
500 | /* if primary address is being forced to zero just flush the | |
501 | * secondary address list */ | |
502 | changed = pim_sec_addr_del_all(pim_ifp); | |
503 | } else { | |
504 | /* re-evaluate the secondary address list */ | |
505 | changed = pim_sec_addr_update(ifp); | |
506 | } | |
507 | ||
508 | return changed; | |
4763cd0e | 509 | } |
510 | ||
ac4d0be5 | 511 | static void detect_address_change(struct interface *ifp, int force_prim_as_any, |
512 | const char *caller) | |
4763cd0e | 513 | { |
ac4d0be5 | 514 | int changed = 0; |
515 | struct pim_interface *pim_ifp; | |
12e41d03 | 516 | |
ac4d0be5 | 517 | pim_ifp = ifp->info; |
518 | if (!pim_ifp) | |
519 | return; | |
4763cd0e | 520 | |
ac4d0be5 | 521 | if (detect_primary_address_change(ifp, force_prim_as_any, caller)) { |
522 | changed = 1; | |
523 | } | |
12e41d03 | 524 | |
ac4d0be5 | 525 | if (detect_secondary_address_change(ifp, force_prim_as_any, caller)) { |
526 | changed = 1; | |
527 | } | |
4763cd0e | 528 | |
529 | ||
ac4d0be5 | 530 | if (changed) { |
531 | if (!PIM_IF_TEST_PIM(pim_ifp->options)) { | |
532 | return; | |
533 | } | |
4763cd0e | 534 | |
ac4d0be5 | 535 | pim_addr_change(ifp); |
536 | } | |
12e41d03 | 537 | |
ac4d0be5 | 538 | /* XXX: if we have unnumbered interfaces we need to run detect address |
539 | * address change on all of them when the lo address changes */ | |
12e41d03 DL |
540 | } |
541 | ||
4763cd0e | 542 | int pim_update_source_set(struct interface *ifp, struct in_addr source) |
12e41d03 | 543 | { |
ac4d0be5 | 544 | struct pim_interface *pim_ifp = ifp->info; |
12e41d03 | 545 | |
ac4d0be5 | 546 | if (!pim_ifp) { |
547 | return PIM_IFACE_NOT_FOUND; | |
548 | } | |
12e41d03 | 549 | |
ac4d0be5 | 550 | if (pim_ifp->update_source.s_addr == source.s_addr) { |
551 | return PIM_UPDATE_SOURCE_DUP; | |
552 | } | |
4763cd0e | 553 | |
ac4d0be5 | 554 | pim_ifp->update_source = source; |
555 | detect_address_change(ifp, 0 /* force_prim_as_any */, | |
556 | __PRETTY_FUNCTION__); | |
4763cd0e | 557 | |
ac4d0be5 | 558 | return PIM_SUCCESS; |
12e41d03 DL |
559 | } |
560 | ||
561 | void pim_if_addr_add(struct connected *ifc) | |
562 | { | |
ac4d0be5 | 563 | struct pim_interface *pim_ifp; |
564 | struct interface *ifp; | |
565 | struct in_addr ifaddr; | |
566 | ||
567 | zassert(ifc); | |
568 | ||
569 | ifp = ifc->ifp; | |
570 | zassert(ifp); | |
571 | pim_ifp = ifp->info; | |
572 | if (!pim_ifp) | |
573 | return; | |
574 | ||
575 | if (!if_is_operative(ifp)) | |
576 | return; | |
577 | ||
578 | if (PIM_DEBUG_ZEBRA) { | |
579 | char buf[BUFSIZ]; | |
580 | prefix2str(ifc->address, buf, BUFSIZ); | |
581 | zlog_debug("%s: %s ifindex=%d connected IP address %s %s", | |
582 | __PRETTY_FUNCTION__, ifp->name, ifp->ifindex, buf, | |
583 | CHECK_FLAG(ifc->flags, ZEBRA_IFA_SECONDARY) | |
584 | ? "secondary" | |
585 | : "primary"); | |
586 | } | |
587 | ||
588 | ifaddr = ifc->address->u.prefix4; | |
589 | ||
590 | detect_address_change(ifp, 0, __PRETTY_FUNCTION__); | |
591 | ||
592 | if (PIM_IF_TEST_IGMP(pim_ifp->options)) { | |
593 | struct igmp_sock *igmp; | |
594 | ||
595 | /* lookup IGMP socket */ | |
596 | igmp = pim_igmp_sock_lookup_ifaddr(pim_ifp->igmp_socket_list, | |
597 | ifaddr); | |
598 | if (!igmp) { | |
599 | /* if addr new, add IGMP socket */ | |
600 | pim_igmp_sock_add(pim_ifp->igmp_socket_list, ifaddr, | |
601 | ifp); | |
602 | } | |
603 | ||
604 | /* Replay Static IGMP groups */ | |
605 | if (pim_ifp->igmp_join_list) { | |
606 | struct listnode *node; | |
607 | struct listnode *nextnode; | |
608 | struct igmp_join *ij; | |
609 | int join_fd; | |
610 | ||
611 | for (ALL_LIST_ELEMENTS(pim_ifp->igmp_join_list, node, | |
612 | nextnode, ij)) { | |
613 | /* Close socket and reopen with Source and Group | |
614 | */ | |
615 | close(ij->sock_fd); | |
616 | join_fd = igmp_join_sock( | |
617 | ifp->name, ifp->ifindex, ij->group_addr, | |
618 | ij->source_addr); | |
619 | if (join_fd < 0) { | |
620 | char group_str[INET_ADDRSTRLEN]; | |
621 | char source_str[INET_ADDRSTRLEN]; | |
622 | pim_inet4_dump("<grp?>", ij->group_addr, | |
623 | group_str, | |
624 | sizeof(group_str)); | |
625 | pim_inet4_dump( | |
626 | "<src?>", ij->source_addr, | |
627 | source_str, sizeof(source_str)); | |
628 | zlog_warn( | |
629 | "%s: igmp_join_sock() failure for IGMP group %s source %s on interface %s", | |
630 | __PRETTY_FUNCTION__, group_str, | |
631 | source_str, ifp->name); | |
632 | /* warning only */ | |
633 | } else | |
634 | ij->sock_fd = join_fd; | |
635 | } | |
636 | } | |
637 | } /* igmp */ | |
638 | ||
639 | if (PIM_IF_TEST_PIM(pim_ifp->options)) { | |
640 | ||
641 | if (PIM_INADDR_ISNOT_ANY(pim_ifp->primary_address)) { | |
642 | ||
643 | /* Interface has a valid socket ? */ | |
644 | if (pim_ifp->pim_sock_fd < 0) { | |
645 | if (pim_sock_add(ifp)) { | |
646 | zlog_warn( | |
647 | "Failure creating PIM socket for interface %s", | |
648 | ifp->name); | |
649 | } | |
650 | } | |
651 | struct pim_nexthop_cache *pnc = NULL; | |
652 | struct pim_rpf rpf; | |
653 | struct zclient *zclient = NULL; | |
654 | ||
655 | zclient = pim_zebra_zclient_get(); | |
656 | /* RP config might come prior to (local RP's interface) | |
657 | IF UP event. | |
658 | In this case, pnc would not have pim enabled | |
659 | nexthops. | |
660 | Once Interface is UP and pim info is available, | |
661 | reregister | |
662 | with RNH address to receive update and add the | |
663 | interface as nexthop. */ | |
664 | memset(&rpf, 0, sizeof(struct pim_rpf)); | |
665 | rpf.rpf_addr.family = AF_INET; | |
666 | rpf.rpf_addr.prefixlen = IPV4_MAX_BITLEN; | |
667 | rpf.rpf_addr.u.prefix4 = ifc->address->u.prefix4; | |
668 | pnc = pim_nexthop_cache_find(&rpf); | |
669 | if (pnc) | |
670 | pim_sendmsg_zebra_rnh(zclient, pnc, | |
671 | ZEBRA_NEXTHOP_REGISTER); | |
672 | } | |
673 | } /* pim */ | |
674 | ||
675 | /* | |
676 | PIM or IGMP is enabled on interface, and there is at least one | |
677 | address assigned, then try to create a vif_index. | |
678 | */ | |
679 | if (pim_ifp->mroute_vif_index < 0) { | |
680 | pim_if_add_vif(ifp); | |
681 | } | |
682 | pim_ifchannel_scan_forward_start(ifp); | |
12e41d03 DL |
683 | } |
684 | ||
685 | static void pim_if_addr_del_igmp(struct connected *ifc) | |
686 | { | |
ac4d0be5 | 687 | struct pim_interface *pim_ifp = ifc->ifp->info; |
688 | struct igmp_sock *igmp; | |
689 | struct in_addr ifaddr; | |
690 | ||
691 | if (ifc->address->family != AF_INET) { | |
692 | /* non-IPv4 address */ | |
693 | return; | |
694 | } | |
695 | ||
696 | if (!pim_ifp) { | |
697 | /* IGMP not enabled on interface */ | |
698 | return; | |
699 | } | |
700 | ||
701 | ifaddr = ifc->address->u.prefix4; | |
702 | ||
703 | /* lookup IGMP socket */ | |
704 | igmp = pim_igmp_sock_lookup_ifaddr(pim_ifp->igmp_socket_list, ifaddr); | |
705 | if (igmp) { | |
706 | /* if addr found, del IGMP socket */ | |
707 | igmp_sock_delete(igmp); | |
708 | } | |
12e41d03 DL |
709 | } |
710 | ||
711 | static void pim_if_addr_del_pim(struct connected *ifc) | |
712 | { | |
ac4d0be5 | 713 | struct pim_interface *pim_ifp = ifc->ifp->info; |
714 | ||
715 | if (ifc->address->family != AF_INET) { | |
716 | /* non-IPv4 address */ | |
717 | return; | |
718 | } | |
719 | ||
720 | if (!pim_ifp) { | |
721 | /* PIM not enabled on interface */ | |
722 | return; | |
723 | } | |
724 | ||
725 | if (PIM_INADDR_ISNOT_ANY(pim_ifp->primary_address)) { | |
726 | /* Interface keeps a valid primary address */ | |
727 | return; | |
728 | } | |
729 | ||
730 | if (pim_ifp->pim_sock_fd < 0) { | |
731 | /* Interface does not hold a valid socket any longer */ | |
732 | return; | |
733 | } | |
734 | ||
735 | /* | |
736 | pim_sock_delete() closes the socket, stops read and timer threads, | |
737 | and kills all neighbors. | |
738 | */ | |
739 | pim_sock_delete(ifc->ifp, | |
740 | "last address has been removed from interface"); | |
12e41d03 DL |
741 | } |
742 | ||
743 | void pim_if_addr_del(struct connected *ifc, int force_prim_as_any) | |
744 | { | |
ac4d0be5 | 745 | struct interface *ifp; |
746 | ||
747 | zassert(ifc); | |
748 | ifp = ifc->ifp; | |
749 | zassert(ifp); | |
750 | ||
751 | if (PIM_DEBUG_ZEBRA) { | |
752 | char buf[BUFSIZ]; | |
753 | prefix2str(ifc->address, buf, BUFSIZ); | |
754 | zlog_debug("%s: %s ifindex=%d disconnected IP address %s %s", | |
755 | __PRETTY_FUNCTION__, ifp->name, ifp->ifindex, buf, | |
756 | CHECK_FLAG(ifc->flags, ZEBRA_IFA_SECONDARY) | |
757 | ? "secondary" | |
758 | : "primary"); | |
759 | } | |
760 | ||
761 | detect_address_change(ifp, force_prim_as_any, __PRETTY_FUNCTION__); | |
762 | ||
763 | pim_if_addr_del_igmp(ifc); | |
764 | pim_if_addr_del_pim(ifc); | |
12e41d03 DL |
765 | } |
766 | ||
767 | void pim_if_addr_add_all(struct interface *ifp) | |
768 | { | |
ac4d0be5 | 769 | struct connected *ifc; |
770 | struct listnode *node; | |
771 | struct listnode *nextnode; | |
772 | int v4_addrs = 0; | |
773 | int v6_addrs = 0; | |
774 | struct pim_interface *pim_ifp = ifp->info; | |
d8424057 | 775 | |
ac4d0be5 | 776 | |
777 | /* PIM/IGMP enabled ? */ | |
778 | if (!pim_ifp) | |
779 | return; | |
780 | ||
781 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nextnode, ifc)) { | |
782 | struct prefix *p = ifc->address; | |
783 | ||
784 | if (p->family != AF_INET) { | |
785 | v6_addrs++; | |
786 | continue; | |
787 | } | |
788 | ||
789 | v4_addrs++; | |
790 | pim_if_addr_add(ifc); | |
791 | } | |
792 | ||
793 | if (!v4_addrs && v6_addrs && !if_is_loopback(ifp)) { | |
794 | if (PIM_IF_TEST_PIM(pim_ifp->options)) { | |
795 | ||
796 | /* Interface has a valid primary address ? */ | |
797 | if (PIM_INADDR_ISNOT_ANY(pim_ifp->primary_address)) { | |
798 | ||
799 | /* Interface has a valid socket ? */ | |
800 | if (pim_ifp->pim_sock_fd < 0) { | |
801 | if (pim_sock_add(ifp)) { | |
802 | zlog_warn( | |
803 | "Failure creating PIM socket for interface %s", | |
804 | ifp->name); | |
805 | } | |
806 | } | |
807 | } | |
808 | } /* pim */ | |
809 | } | |
810 | /* | |
811 | * PIM or IGMP is enabled on interface, and there is at least one | |
812 | * address assigned, then try to create a vif_index. | |
813 | */ | |
814 | if (pim_ifp->mroute_vif_index < 0) { | |
815 | pim_if_add_vif(ifp); | |
816 | } | |
817 | pim_ifchannel_scan_forward_start(ifp); | |
818 | ||
819 | pim_rp_setup(); | |
820 | pim_rp_check_on_if_add(pim_ifp); | |
12e41d03 DL |
821 | } |
822 | ||
823 | void pim_if_addr_del_all(struct interface *ifp) | |
824 | { | |
ac4d0be5 | 825 | struct connected *ifc; |
826 | struct listnode *node; | |
827 | struct listnode *nextnode; | |
12e41d03 | 828 | |
ac4d0be5 | 829 | /* PIM/IGMP enabled ? */ |
830 | if (!ifp->info) | |
831 | return; | |
12e41d03 | 832 | |
ac4d0be5 | 833 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nextnode, ifc)) { |
834 | struct prefix *p = ifc->address; | |
12e41d03 | 835 | |
ac4d0be5 | 836 | if (p->family != AF_INET) |
837 | continue; | |
838 | ||
839 | pim_if_addr_del(ifc, 1 /* force_prim_as_any=true */); | |
840 | } | |
da3dcffb | 841 | |
ac4d0be5 | 842 | pim_rp_setup(); |
843 | pim_i_am_rp_re_evaluate(); | |
12e41d03 DL |
844 | } |
845 | ||
846 | void pim_if_addr_del_all_igmp(struct interface *ifp) | |
847 | { | |
ac4d0be5 | 848 | struct connected *ifc; |
849 | struct listnode *node; | |
850 | struct listnode *nextnode; | |
851 | ||
852 | /* PIM/IGMP enabled ? */ | |
853 | if (!ifp->info) | |
854 | return; | |
855 | ||
856 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nextnode, ifc)) { | |
857 | struct prefix *p = ifc->address; | |
858 | ||
859 | if (p->family != AF_INET) | |
860 | continue; | |
861 | ||
862 | pim_if_addr_del_igmp(ifc); | |
863 | } | |
12e41d03 DL |
864 | } |
865 | ||
866 | void pim_if_addr_del_all_pim(struct interface *ifp) | |
867 | { | |
ac4d0be5 | 868 | struct connected *ifc; |
869 | struct listnode *node; | |
870 | struct listnode *nextnode; | |
871 | ||
872 | /* PIM/IGMP enabled ? */ | |
873 | if (!ifp->info) | |
874 | return; | |
875 | ||
876 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nextnode, ifc)) { | |
877 | struct prefix *p = ifc->address; | |
878 | ||
879 | if (p->family != AF_INET) | |
880 | continue; | |
881 | ||
882 | pim_if_addr_del_pim(ifc); | |
883 | } | |
12e41d03 DL |
884 | } |
885 | ||
ac4d0be5 | 886 | struct in_addr pim_find_primary_addr(struct interface *ifp) |
12e41d03 | 887 | { |
ac4d0be5 | 888 | struct connected *ifc; |
889 | struct listnode *node; | |
890 | struct in_addr addr; | |
891 | int v4_addrs = 0; | |
892 | int v6_addrs = 0; | |
893 | struct pim_interface *pim_ifp = ifp->info; | |
894 | ||
895 | if (pim_ifp && PIM_INADDR_ISNOT_ANY(pim_ifp->update_source)) { | |
896 | return pim_ifp->update_source; | |
897 | } | |
898 | ||
899 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, ifc)) { | |
900 | struct prefix *p = ifc->address; | |
901 | ||
902 | if (p->family != AF_INET) { | |
903 | v6_addrs++; | |
904 | continue; | |
905 | } | |
906 | ||
907 | if (PIM_INADDR_IS_ANY(p->u.prefix4)) { | |
908 | zlog_warn( | |
909 | "%s: null IPv4 address connected to interface %s", | |
910 | __PRETTY_FUNCTION__, ifp->name); | |
911 | continue; | |
912 | } | |
913 | ||
914 | v4_addrs++; | |
915 | ||
916 | if (CHECK_FLAG(ifc->flags, ZEBRA_IFA_SECONDARY)) | |
917 | continue; | |
918 | ||
919 | return p->u.prefix4; | |
920 | } | |
921 | ||
922 | /* | |
923 | * If we have no v4_addrs and v6 is configured | |
924 | * We probably are using unnumbered | |
925 | * So let's grab the loopbacks v4 address | |
926 | * and use that as the primary address | |
927 | */ | |
928 | if (!v4_addrs && v6_addrs && !if_is_loopback(ifp)) { | |
929 | struct interface *lo_ifp; | |
930 | lo_ifp = if_lookup_by_name("lo", VRF_DEFAULT); | |
931 | if (lo_ifp) | |
932 | return pim_find_primary_addr(lo_ifp); | |
933 | } | |
934 | ||
935 | addr.s_addr = PIM_NET_INADDR_ANY; | |
936 | ||
937 | return addr; | |
12e41d03 DL |
938 | } |
939 | ||
ac4d0be5 | 940 | static int pim_iface_next_vif_index(struct interface *ifp) |
744d91b3 | 941 | { |
ac4d0be5 | 942 | int i; |
943 | /* | |
944 | * The pimreg vif is always going to be in index 0 | |
945 | * of the table. | |
946 | */ | |
947 | if (ifp->ifindex == PIM_OIF_PIM_REGISTER_VIF) | |
948 | return 0; | |
949 | ||
950 | for (i = 1; i < MAXVIFS; i++) { | |
951 | if (pim_iface_vif_index[i] == 0) | |
952 | return i; | |
953 | } | |
954 | return MAXVIFS; | |
744d91b3 DS |
955 | } |
956 | ||
12e41d03 DL |
957 | /* |
958 | pim_if_add_vif() uses ifindex as vif_index | |
959 | ||
960 | see also pim_if_find_vifindex_by_ifindex() | |
961 | */ | |
962 | int pim_if_add_vif(struct interface *ifp) | |
963 | { | |
ac4d0be5 | 964 | struct pim_interface *pim_ifp = ifp->info; |
965 | struct in_addr ifaddr; | |
966 | unsigned char flags = 0; | |
967 | ||
968 | zassert(pim_ifp); | |
969 | ||
970 | if (pim_ifp->mroute_vif_index > 0) { | |
971 | zlog_warn("%s: vif_index=%d > 0 on interface %s ifindex=%d", | |
972 | __PRETTY_FUNCTION__, pim_ifp->mroute_vif_index, | |
973 | ifp->name, ifp->ifindex); | |
974 | return -1; | |
975 | } | |
976 | ||
977 | if (ifp->ifindex < 0) { | |
978 | zlog_warn("%s: ifindex=%d < 1 on interface %s", | |
979 | __PRETTY_FUNCTION__, ifp->ifindex, ifp->name); | |
980 | return -2; | |
981 | } | |
982 | ||
983 | ifaddr = pim_ifp->primary_address; | |
984 | if (ifp->ifindex != PIM_OIF_PIM_REGISTER_VIF | |
985 | && PIM_INADDR_IS_ANY(ifaddr)) { | |
986 | zlog_warn( | |
987 | "%s: could not get address for interface %s ifindex=%d", | |
988 | __PRETTY_FUNCTION__, ifp->name, ifp->ifindex); | |
989 | return -4; | |
990 | } | |
991 | ||
992 | pim_ifp->mroute_vif_index = pim_iface_next_vif_index(ifp); | |
993 | ||
994 | if (pim_ifp->mroute_vif_index >= MAXVIFS) { | |
995 | zlog_warn( | |
996 | "%s: Attempting to configure more than MAXVIFS=%d on pim enabled interface %s", | |
997 | __PRETTY_FUNCTION__, MAXVIFS, ifp->name); | |
998 | return -3; | |
999 | } | |
1000 | ||
1001 | if (ifp->ifindex == PIM_OIF_PIM_REGISTER_VIF) | |
1002 | flags = VIFF_REGISTER; | |
b3f2bf7c | 1003 | #ifdef VIFF_USE_IFINDEX |
ac4d0be5 | 1004 | else |
1005 | flags = VIFF_USE_IFINDEX; | |
b3f2bf7c RW |
1006 | #endif |
1007 | ||
ac4d0be5 | 1008 | if (pim_mroute_add_vif(ifp, ifaddr, flags)) { |
1009 | /* pim_mroute_add_vif reported error */ | |
1010 | return -5; | |
1011 | } | |
12e41d03 | 1012 | |
ac4d0be5 | 1013 | pim_iface_vif_index[pim_ifp->mroute_vif_index] = 1; |
1014 | return 0; | |
12e41d03 DL |
1015 | } |
1016 | ||
12e41d03 DL |
1017 | int pim_if_del_vif(struct interface *ifp) |
1018 | { | |
ac4d0be5 | 1019 | struct pim_interface *pim_ifp = ifp->info; |
12e41d03 | 1020 | |
ac4d0be5 | 1021 | if (pim_ifp->mroute_vif_index < 1) { |
1022 | zlog_warn("%s: vif_index=%d < 1 on interface %s ifindex=%d", | |
1023 | __PRETTY_FUNCTION__, pim_ifp->mroute_vif_index, | |
1024 | ifp->name, ifp->ifindex); | |
1025 | return -1; | |
1026 | } | |
12e41d03 | 1027 | |
ac4d0be5 | 1028 | pim_mroute_del_vif(pim_ifp->mroute_vif_index); |
12e41d03 | 1029 | |
ac4d0be5 | 1030 | /* |
1031 | Update vif_index | |
1032 | */ | |
1033 | pim_iface_vif_index[pim_ifp->mroute_vif_index] = 0; | |
12e41d03 | 1034 | |
ac4d0be5 | 1035 | pim_ifp->mroute_vif_index = -1; |
12e41d03 | 1036 | |
ac4d0be5 | 1037 | return 0; |
12e41d03 DL |
1038 | } |
1039 | ||
1040 | void pim_if_add_vif_all() | |
1041 | { | |
ac4d0be5 | 1042 | struct listnode *ifnode; |
1043 | struct listnode *ifnextnode; | |
1044 | struct interface *ifp; | |
12e41d03 | 1045 | |
ac4d0be5 | 1046 | for (ALL_LIST_ELEMENTS(vrf_iflist(VRF_DEFAULT), ifnode, ifnextnode, |
1047 | ifp)) { | |
1048 | if (!ifp->info) | |
1049 | continue; | |
12e41d03 | 1050 | |
ac4d0be5 | 1051 | pim_if_add_vif(ifp); |
1052 | } | |
12e41d03 DL |
1053 | } |
1054 | ||
1055 | void pim_if_del_vif_all() | |
1056 | { | |
ac4d0be5 | 1057 | struct listnode *ifnode; |
1058 | struct listnode *ifnextnode; | |
1059 | struct interface *ifp; | |
12e41d03 | 1060 | |
ac4d0be5 | 1061 | for (ALL_LIST_ELEMENTS(vrf_iflist(VRF_DEFAULT), ifnode, ifnextnode, |
1062 | ifp)) { | |
1063 | if (!ifp->info) | |
1064 | continue; | |
12e41d03 | 1065 | |
ac4d0be5 | 1066 | pim_if_del_vif(ifp); |
1067 | } | |
12e41d03 DL |
1068 | } |
1069 | ||
b892f1dd | 1070 | struct interface *pim_if_find_by_vif_index(ifindex_t vif_index) |
12e41d03 | 1071 | { |
ac4d0be5 | 1072 | struct listnode *ifnode; |
1073 | struct interface *ifp; | |
12e41d03 | 1074 | |
ac4d0be5 | 1075 | if (vif_index == 0) |
1076 | return if_lookup_by_name("pimreg", VRF_DEFAULT); | |
ae90dfbb | 1077 | |
ac4d0be5 | 1078 | for (ALL_LIST_ELEMENTS_RO(vrf_iflist(VRF_DEFAULT), ifnode, ifp)) { |
1079 | if (ifp->info) { | |
1080 | struct pim_interface *pim_ifp; | |
1081 | pim_ifp = ifp->info; | |
b892f1dd | 1082 | |
ac4d0be5 | 1083 | if (vif_index == pim_ifp->mroute_vif_index) |
1084 | return ifp; | |
1085 | } | |
1086 | } | |
12e41d03 | 1087 | |
ac4d0be5 | 1088 | return 0; |
12e41d03 DL |
1089 | } |
1090 | ||
1091 | /* | |
1092 | pim_if_add_vif() uses ifindex as vif_index | |
1093 | */ | |
b892f1dd | 1094 | int pim_if_find_vifindex_by_ifindex(ifindex_t ifindex) |
12e41d03 | 1095 | { |
ac4d0be5 | 1096 | struct pim_interface *pim_ifp; |
1097 | struct interface *ifp; | |
ae90dfbb | 1098 | |
ac4d0be5 | 1099 | ifp = if_lookup_by_index(ifindex, VRF_DEFAULT); |
1100 | if (!ifp || !ifp->info) | |
1101 | return -1; | |
1102 | pim_ifp = ifp->info; | |
ae90dfbb | 1103 | |
ac4d0be5 | 1104 | return pim_ifp->mroute_vif_index; |
12e41d03 DL |
1105 | } |
1106 | ||
1107 | int pim_if_lan_delay_enabled(struct interface *ifp) | |
1108 | { | |
ac4d0be5 | 1109 | struct pim_interface *pim_ifp; |
12e41d03 | 1110 | |
ac4d0be5 | 1111 | pim_ifp = ifp->info; |
1112 | zassert(pim_ifp); | |
1113 | zassert(pim_ifp->pim_number_of_nonlandelay_neighbors >= 0); | |
12e41d03 | 1114 | |
ac4d0be5 | 1115 | return pim_ifp->pim_number_of_nonlandelay_neighbors == 0; |
12e41d03 DL |
1116 | } |
1117 | ||
1118 | uint16_t pim_if_effective_propagation_delay_msec(struct interface *ifp) | |
1119 | { | |
ac4d0be5 | 1120 | if (pim_if_lan_delay_enabled(ifp)) { |
1121 | struct pim_interface *pim_ifp; | |
1122 | pim_ifp = ifp->info; | |
1123 | return pim_ifp->pim_neighbors_highest_propagation_delay_msec; | |
1124 | } else { | |
1125 | return PIM_DEFAULT_PROPAGATION_DELAY_MSEC; | |
1126 | } | |
12e41d03 DL |
1127 | } |
1128 | ||
1129 | uint16_t pim_if_effective_override_interval_msec(struct interface *ifp) | |
1130 | { | |
ac4d0be5 | 1131 | if (pim_if_lan_delay_enabled(ifp)) { |
1132 | struct pim_interface *pim_ifp; | |
1133 | pim_ifp = ifp->info; | |
1134 | return pim_ifp->pim_neighbors_highest_override_interval_msec; | |
1135 | } else { | |
1136 | return PIM_DEFAULT_OVERRIDE_INTERVAL_MSEC; | |
1137 | } | |
12e41d03 DL |
1138 | } |
1139 | ||
1140 | int pim_if_t_override_msec(struct interface *ifp) | |
1141 | { | |
ac4d0be5 | 1142 | int effective_override_interval_msec; |
1143 | int t_override_msec; | |
12e41d03 | 1144 | |
ac4d0be5 | 1145 | effective_override_interval_msec = |
1146 | pim_if_effective_override_interval_msec(ifp); | |
12e41d03 | 1147 | |
ac4d0be5 | 1148 | t_override_msec = random() % (effective_override_interval_msec + 1); |
12e41d03 | 1149 | |
ac4d0be5 | 1150 | return t_override_msec; |
12e41d03 DL |
1151 | } |
1152 | ||
1153 | uint16_t pim_if_jp_override_interval_msec(struct interface *ifp) | |
1154 | { | |
ac4d0be5 | 1155 | return pim_if_effective_propagation_delay_msec(ifp) |
1156 | + pim_if_effective_override_interval_msec(ifp); | |
12e41d03 DL |
1157 | } |
1158 | ||
1159 | /* | |
1160 | RFC 4601: 4.1.6. State Summarization Macros | |
1161 | ||
1162 | The function NBR( I, A ) uses information gathered through PIM Hello | |
1163 | messages to map the IP address A of a directly connected PIM | |
1164 | neighbor router on interface I to the primary IP address of the same | |
1165 | router (Section 4.3.4). The primary IP address of a neighbor is the | |
1166 | address that it uses as the source of its PIM Hello messages. | |
1167 | */ | |
1168 | struct pim_neighbor *pim_if_find_neighbor(struct interface *ifp, | |
1169 | struct in_addr addr) | |
1170 | { | |
ac4d0be5 | 1171 | struct listnode *neighnode; |
1172 | struct pim_neighbor *neigh; | |
1173 | struct pim_interface *pim_ifp; | |
1174 | ||
1175 | zassert(ifp); | |
1176 | ||
1177 | pim_ifp = ifp->info; | |
1178 | if (!pim_ifp) { | |
1179 | zlog_warn("%s: multicast not enabled on interface %s", | |
1180 | __PRETTY_FUNCTION__, ifp->name); | |
1181 | return 0; | |
1182 | } | |
1183 | ||
1184 | for (ALL_LIST_ELEMENTS_RO(pim_ifp->pim_neighbor_list, neighnode, | |
1185 | neigh)) { | |
1186 | ||
1187 | /* primary address ? */ | |
1188 | if (neigh->source_addr.s_addr == addr.s_addr) | |
1189 | return neigh; | |
1190 | ||
1191 | /* secondary address ? */ | |
1192 | if (pim_neighbor_find_secondary(neigh, addr)) | |
1193 | return neigh; | |
1194 | } | |
1195 | ||
1196 | if (PIM_DEBUG_PIM_TRACE) { | |
1197 | char addr_str[INET_ADDRSTRLEN]; | |
1198 | pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str)); | |
1199 | zlog_debug( | |
1200 | "%s: neighbor not found for address %s on interface %s", | |
1201 | __PRETTY_FUNCTION__, addr_str, ifp->name); | |
1202 | } | |
1203 | ||
1204 | return NULL; | |
12e41d03 DL |
1205 | } |
1206 | ||
1207 | long pim_if_t_suppressed_msec(struct interface *ifp) | |
1208 | { | |
ac4d0be5 | 1209 | struct pim_interface *pim_ifp; |
1210 | long t_suppressed_msec; | |
1211 | uint32_t ramount = 0; | |
12e41d03 | 1212 | |
ac4d0be5 | 1213 | pim_ifp = ifp->info; |
1214 | zassert(pim_ifp); | |
12e41d03 | 1215 | |
ac4d0be5 | 1216 | /* join suppression disabled ? */ |
1217 | if (PIM_IF_TEST_PIM_CAN_DISABLE_JOIN_SUPRESSION(pim_ifp->options)) | |
1218 | return 0; | |
12e41d03 | 1219 | |
ac4d0be5 | 1220 | /* t_suppressed = t_periodic * rand(1.1, 1.4) */ |
1221 | ramount = 1100 + (random() % (1400 - 1100 + 1)); | |
1222 | t_suppressed_msec = qpim_t_periodic * ramount; | |
12e41d03 | 1223 | |
ac4d0be5 | 1224 | return t_suppressed_msec; |
12e41d03 DL |
1225 | } |
1226 | ||
1227 | static void igmp_join_free(struct igmp_join *ij) | |
1228 | { | |
ac4d0be5 | 1229 | XFREE(MTYPE_PIM_IGMP_JOIN, ij); |
12e41d03 DL |
1230 | } |
1231 | ||
1232 | static struct igmp_join *igmp_join_find(struct list *join_list, | |
1233 | struct in_addr group_addr, | |
1234 | struct in_addr source_addr) | |
1235 | { | |
ac4d0be5 | 1236 | struct listnode *node; |
1237 | struct igmp_join *ij; | |
12e41d03 | 1238 | |
ac4d0be5 | 1239 | zassert(join_list); |
12e41d03 | 1240 | |
ac4d0be5 | 1241 | for (ALL_LIST_ELEMENTS_RO(join_list, node, ij)) { |
1242 | if ((group_addr.s_addr == ij->group_addr.s_addr) | |
1243 | && (source_addr.s_addr == ij->source_addr.s_addr)) | |
1244 | return ij; | |
1245 | } | |
12e41d03 | 1246 | |
ac4d0be5 | 1247 | return 0; |
12e41d03 DL |
1248 | } |
1249 | ||
ac4d0be5 | 1250 | static int igmp_join_sock(const char *ifname, ifindex_t ifindex, |
1251 | struct in_addr group_addr, struct in_addr source_addr) | |
12e41d03 | 1252 | { |
ac4d0be5 | 1253 | int join_fd; |
12e41d03 | 1254 | |
ac4d0be5 | 1255 | join_fd = pim_socket_raw(IPPROTO_IGMP); |
1256 | if (join_fd < 0) { | |
1257 | return -1; | |
1258 | } | |
12e41d03 | 1259 | |
ac4d0be5 | 1260 | if (pim_socket_join_source(join_fd, ifindex, group_addr, source_addr, |
1261 | ifname)) { | |
1262 | close(join_fd); | |
1263 | return -2; | |
1264 | } | |
12e41d03 | 1265 | |
ac4d0be5 | 1266 | return join_fd; |
12e41d03 DL |
1267 | } |
1268 | ||
1269 | static struct igmp_join *igmp_join_new(struct interface *ifp, | |
1270 | struct in_addr group_addr, | |
1271 | struct in_addr source_addr) | |
1272 | { | |
ac4d0be5 | 1273 | struct pim_interface *pim_ifp; |
1274 | struct igmp_join *ij; | |
1275 | int join_fd; | |
1276 | ||
1277 | pim_ifp = ifp->info; | |
1278 | zassert(pim_ifp); | |
1279 | ||
1280 | join_fd = igmp_join_sock(ifp->name, ifp->ifindex, group_addr, | |
1281 | source_addr); | |
1282 | if (join_fd < 0) { | |
1283 | char group_str[INET_ADDRSTRLEN]; | |
1284 | char source_str[INET_ADDRSTRLEN]; | |
1285 | pim_inet4_dump("<grp?>", group_addr, group_str, | |
1286 | sizeof(group_str)); | |
1287 | pim_inet4_dump("<src?>", source_addr, source_str, | |
1288 | sizeof(source_str)); | |
1289 | zlog_warn( | |
1290 | "%s: igmp_join_sock() failure for IGMP group %s source %s on interface %s", | |
1291 | __PRETTY_FUNCTION__, group_str, source_str, ifp->name); | |
1292 | return 0; | |
1293 | } | |
1294 | ||
1295 | ij = XCALLOC(MTYPE_PIM_IGMP_JOIN, sizeof(*ij)); | |
1296 | if (!ij) { | |
1297 | char group_str[INET_ADDRSTRLEN]; | |
1298 | char source_str[INET_ADDRSTRLEN]; | |
1299 | pim_inet4_dump("<grp?>", group_addr, group_str, | |
1300 | sizeof(group_str)); | |
1301 | pim_inet4_dump("<src?>", source_addr, source_str, | |
1302 | sizeof(source_str)); | |
1303 | zlog_err( | |
1304 | "%s: XCALLOC(%zu) failure for IGMP group %s source %s on interface %s", | |
1305 | __PRETTY_FUNCTION__, sizeof(*ij), group_str, source_str, | |
1306 | ifp->name); | |
1307 | close(join_fd); | |
1308 | return 0; | |
1309 | } | |
1310 | ||
1311 | ij->sock_fd = join_fd; | |
1312 | ij->group_addr = group_addr; | |
1313 | ij->source_addr = source_addr; | |
1314 | ij->sock_creation = pim_time_monotonic_sec(); | |
1315 | ||
1316 | listnode_add(pim_ifp->igmp_join_list, ij); | |
1317 | ||
1318 | return ij; | |
12e41d03 DL |
1319 | } |
1320 | ||
ac4d0be5 | 1321 | int pim_if_igmp_join_add(struct interface *ifp, struct in_addr group_addr, |
12e41d03 DL |
1322 | struct in_addr source_addr) |
1323 | { | |
ac4d0be5 | 1324 | struct pim_interface *pim_ifp; |
1325 | struct igmp_join *ij; | |
1326 | ||
1327 | pim_ifp = ifp->info; | |
1328 | if (!pim_ifp) { | |
1329 | zlog_warn("%s: multicast not enabled on interface %s", | |
1330 | __PRETTY_FUNCTION__, ifp->name); | |
1331 | return -1; | |
1332 | } | |
1333 | ||
1334 | if (!pim_ifp->igmp_join_list) { | |
1335 | pim_ifp->igmp_join_list = list_new(); | |
1336 | if (!pim_ifp->igmp_join_list) { | |
1337 | zlog_err("%s %s: failure: igmp_join_list=list_new()", | |
1338 | __FILE__, __PRETTY_FUNCTION__); | |
1339 | return -2; | |
1340 | } | |
1341 | pim_ifp->igmp_join_list->del = (void (*)(void *))igmp_join_free; | |
1342 | } | |
1343 | ||
1344 | ij = igmp_join_find(pim_ifp->igmp_join_list, group_addr, source_addr); | |
1345 | if (ij) { | |
1346 | char group_str[INET_ADDRSTRLEN]; | |
1347 | char source_str[INET_ADDRSTRLEN]; | |
1348 | pim_inet4_dump("<grp?>", group_addr, group_str, | |
1349 | sizeof(group_str)); | |
1350 | pim_inet4_dump("<src?>", source_addr, source_str, | |
1351 | sizeof(source_str)); | |
1352 | zlog_warn( | |
1353 | "%s: can't re-join existing IGMP group %s source %s on interface %s", | |
1354 | __PRETTY_FUNCTION__, group_str, source_str, ifp->name); | |
1355 | return -3; | |
1356 | } | |
12e41d03 | 1357 | |
ac4d0be5 | 1358 | ij = igmp_join_new(ifp, group_addr, source_addr); |
1359 | if (!ij) { | |
1360 | char group_str[INET_ADDRSTRLEN]; | |
1361 | char source_str[INET_ADDRSTRLEN]; | |
1362 | pim_inet4_dump("<grp?>", group_addr, group_str, | |
1363 | sizeof(group_str)); | |
1364 | pim_inet4_dump("<src?>", source_addr, source_str, | |
1365 | sizeof(source_str)); | |
1366 | zlog_warn( | |
1367 | "%s: igmp_join_new() failure for IGMP group %s source %s on interface %s", | |
1368 | __PRETTY_FUNCTION__, group_str, source_str, ifp->name); | |
1369 | return -4; | |
1370 | } | |
12e41d03 | 1371 | |
ac4d0be5 | 1372 | if (PIM_DEBUG_IGMP_EVENTS) { |
1373 | char group_str[INET_ADDRSTRLEN]; | |
1374 | char source_str[INET_ADDRSTRLEN]; | |
1375 | pim_inet4_dump("<grp?>", group_addr, group_str, | |
1376 | sizeof(group_str)); | |
1377 | pim_inet4_dump("<src?>", source_addr, source_str, | |
1378 | sizeof(source_str)); | |
1379 | zlog_debug( | |
1380 | "%s: issued static igmp join for channel (S,G)=(%s,%s) on interface %s", | |
1381 | __PRETTY_FUNCTION__, source_str, group_str, ifp->name); | |
1382 | } | |
12e41d03 | 1383 | |
ac4d0be5 | 1384 | return 0; |
1385 | } | |
1386 | ||
1387 | ||
1388 | int pim_if_igmp_join_del(struct interface *ifp, struct in_addr group_addr, | |
12e41d03 DL |
1389 | struct in_addr source_addr) |
1390 | { | |
ac4d0be5 | 1391 | struct pim_interface *pim_ifp; |
1392 | struct igmp_join *ij; | |
1393 | ||
1394 | pim_ifp = ifp->info; | |
1395 | if (!pim_ifp) { | |
1396 | zlog_warn("%s: multicast not enabled on interface %s", | |
1397 | __PRETTY_FUNCTION__, ifp->name); | |
1398 | return -1; | |
1399 | } | |
1400 | ||
1401 | if (!pim_ifp->igmp_join_list) { | |
1402 | zlog_warn("%s: no IGMP join on interface %s", | |
1403 | __PRETTY_FUNCTION__, ifp->name); | |
1404 | return -2; | |
1405 | } | |
1406 | ||
1407 | ij = igmp_join_find(pim_ifp->igmp_join_list, group_addr, source_addr); | |
1408 | if (!ij) { | |
1409 | char group_str[INET_ADDRSTRLEN]; | |
1410 | char source_str[INET_ADDRSTRLEN]; | |
1411 | pim_inet4_dump("<grp?>", group_addr, group_str, | |
1412 | sizeof(group_str)); | |
1413 | pim_inet4_dump("<src?>", source_addr, source_str, | |
1414 | sizeof(source_str)); | |
1415 | zlog_warn( | |
1416 | "%s: could not find IGMP group %s source %s on interface %s", | |
1417 | __PRETTY_FUNCTION__, group_str, source_str, ifp->name); | |
1418 | return -3; | |
1419 | } | |
1420 | ||
1421 | if (close(ij->sock_fd)) { | |
1422 | char group_str[INET_ADDRSTRLEN]; | |
1423 | char source_str[INET_ADDRSTRLEN]; | |
1424 | pim_inet4_dump("<grp?>", group_addr, group_str, | |
1425 | sizeof(group_str)); | |
1426 | pim_inet4_dump("<src?>", source_addr, source_str, | |
1427 | sizeof(source_str)); | |
1428 | zlog_warn( | |
1429 | "%s: failure closing sock_fd=%d for IGMP group %s source %s on interface %s: errno=%d: %s", | |
1430 | __PRETTY_FUNCTION__, ij->sock_fd, group_str, source_str, | |
1431 | ifp->name, errno, safe_strerror(errno)); | |
1432 | /* warning only */ | |
1433 | } | |
1434 | listnode_delete(pim_ifp->igmp_join_list, ij); | |
1435 | igmp_join_free(ij); | |
1436 | if (listcount(pim_ifp->igmp_join_list) < 1) { | |
1437 | list_delete(pim_ifp->igmp_join_list); | |
1438 | pim_ifp->igmp_join_list = 0; | |
1439 | } | |
1440 | ||
1441 | return 0; | |
12e41d03 DL |
1442 | } |
1443 | ||
1444 | static void pim_if_igmp_join_del_all(struct interface *ifp) | |
1445 | { | |
ac4d0be5 | 1446 | struct pim_interface *pim_ifp; |
1447 | struct listnode *node; | |
1448 | struct listnode *nextnode; | |
1449 | struct igmp_join *ij; | |
1450 | ||
1451 | pim_ifp = ifp->info; | |
1452 | if (!pim_ifp) { | |
1453 | zlog_warn("%s: multicast not enabled on interface %s", | |
1454 | __PRETTY_FUNCTION__, ifp->name); | |
1455 | return; | |
1456 | } | |
1457 | ||
1458 | if (!pim_ifp->igmp_join_list) | |
1459 | return; | |
1460 | ||
1461 | for (ALL_LIST_ELEMENTS(pim_ifp->igmp_join_list, node, nextnode, ij)) | |
1462 | pim_if_igmp_join_del(ifp, ij->group_addr, ij->source_addr); | |
12e41d03 DL |
1463 | } |
1464 | ||
1465 | /* | |
1466 | RFC 4601 | |
1467 | ||
1468 | Transitions from "I am Assert Loser" State | |
1469 | ||
1470 | Current Winner's GenID Changes or NLT Expires | |
1471 | ||
1472 | The Neighbor Liveness Timer associated with the current winner | |
1473 | expires or we receive a Hello message from the current winner | |
1474 | reporting a different GenID from the one it previously reported. | |
1475 | This indicates that the current winner's interface or router has | |
1476 | gone down (and may have come back up), and so we must assume it no | |
1477 | longer knows it was the winner. | |
1478 | */ | |
1479 | void pim_if_assert_on_neighbor_down(struct interface *ifp, | |
1480 | struct in_addr neigh_addr) | |
1481 | { | |
ac4d0be5 | 1482 | struct pim_interface *pim_ifp; |
1483 | struct listnode *node; | |
1484 | struct listnode *next_node; | |
1485 | struct pim_ifchannel *ch; | |
1486 | ||
1487 | pim_ifp = ifp->info; | |
1488 | zassert(pim_ifp); | |
1489 | ||
1490 | for (ALL_LIST_ELEMENTS(pim_ifp->pim_ifchannel_list, node, next_node, | |
1491 | ch)) { | |
1492 | /* Is (S,G,I) assert loser ? */ | |
1493 | if (ch->ifassert_state != PIM_IFASSERT_I_AM_LOSER) | |
1494 | continue; | |
1495 | /* Dead neighbor was winner ? */ | |
1496 | if (ch->ifassert_winner.s_addr != neigh_addr.s_addr) | |
1497 | continue; | |
1498 | ||
1499 | assert_action_a5(ch); | |
1500 | } | |
12e41d03 DL |
1501 | } |
1502 | ||
1503 | void pim_if_update_join_desired(struct pim_interface *pim_ifp) | |
1504 | { | |
ac4d0be5 | 1505 | struct listnode *ch_node; |
1506 | struct pim_ifchannel *ch; | |
12e41d03 | 1507 | |
ac4d0be5 | 1508 | /* clear off flag from interface's upstreams */ |
1509 | for (ALL_LIST_ELEMENTS_RO(pim_ifp->pim_ifchannel_list, ch_node, ch)) { | |
1510 | PIM_UPSTREAM_FLAG_UNSET_DR_JOIN_DESIRED_UPDATED( | |
1511 | ch->upstream->flags); | |
1512 | } | |
12e41d03 | 1513 | |
ac4d0be5 | 1514 | /* scan per-interface (S,G,I) state on this I interface */ |
1515 | for (ALL_LIST_ELEMENTS_RO(pim_ifp->pim_ifchannel_list, ch_node, ch)) { | |
1516 | struct pim_upstream *up = ch->upstream; | |
12e41d03 | 1517 | |
ac4d0be5 | 1518 | if (PIM_UPSTREAM_FLAG_TEST_DR_JOIN_DESIRED_UPDATED(up->flags)) |
1519 | continue; | |
12e41d03 | 1520 | |
ac4d0be5 | 1521 | /* update join_desired for the global (S,G) state */ |
1522 | pim_upstream_update_join_desired(up); | |
1523 | PIM_UPSTREAM_FLAG_SET_DR_JOIN_DESIRED_UPDATED(up->flags); | |
1524 | } | |
12e41d03 DL |
1525 | } |
1526 | ||
1527 | void pim_if_update_assert_tracking_desired(struct interface *ifp) | |
1528 | { | |
ac4d0be5 | 1529 | struct pim_interface *pim_ifp; |
1530 | struct listnode *node; | |
1531 | struct listnode *next_node; | |
1532 | struct pim_ifchannel *ch; | |
1533 | ||
1534 | pim_ifp = ifp->info; | |
1535 | if (!pim_ifp) | |
1536 | return; | |
1537 | ||
1538 | for (ALL_LIST_ELEMENTS(pim_ifp->pim_ifchannel_list, node, next_node, | |
1539 | ch)) { | |
1540 | pim_ifchannel_update_assert_tracking_desired(ch); | |
1541 | } | |
12e41d03 | 1542 | } |
c992c9a0 DS |
1543 | |
1544 | /* | |
1545 | * PIM wants to have an interface pointer for everything it does. | |
1546 | * The pimreg is a special interface that we have that is not | |
1547 | * quite an inteface but a VIF is created for it. | |
1548 | */ | |
ac4d0be5 | 1549 | void pim_if_create_pimreg(void) |
c992c9a0 | 1550 | { |
ac4d0be5 | 1551 | if (!pim_regiface) { |
1552 | pim_regiface = | |
1553 | if_create("pimreg", strlen("pimreg"), VRF_DEFAULT); | |
1554 | pim_regiface->ifindex = PIM_OIF_PIM_REGISTER_VIF; | |
c992c9a0 | 1555 | |
ac4d0be5 | 1556 | pim_if_new(pim_regiface, 0, 0); |
1557 | } | |
c992c9a0 | 1558 | } |
3565202d | 1559 | |
ac4d0be5 | 1560 | int pim_if_connected_to_source(struct interface *ifp, struct in_addr src) |
3565202d | 1561 | { |
ac4d0be5 | 1562 | struct listnode *cnode; |
1563 | struct connected *c; | |
1564 | struct prefix p; | |
1565 | ||
1566 | if (!ifp) | |
1567 | return 0; | |
1568 | ||
1569 | p.family = AF_INET; | |
1570 | p.u.prefix4 = src; | |
1571 | p.prefixlen = IPV4_MAX_BITLEN; | |
1572 | ||
1573 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, c)) { | |
1574 | if ((c->address->family == AF_INET) | |
1575 | && prefix_match(CONNECTED_PREFIX(c), &p)) { | |
1576 | return 1; | |
1577 | } | |
1578 | } | |
1579 | ||
1580 | return 0; | |
3565202d | 1581 | } |
9f0edbc9 | 1582 | |
ac4d0be5 | 1583 | struct interface *pim_if_lookup_address_vrf(struct in_addr src, vrf_id_t vrf_id) |
9f0edbc9 | 1584 | { |
ac4d0be5 | 1585 | struct listnode *ifnode; |
1586 | struct interface *ifp; | |
1587 | ||
1588 | for (ALL_LIST_ELEMENTS_RO(vrf_iflist(vrf_id), ifnode, ifp)) { | |
1589 | if (pim_if_connected_to_source(ifp, src) && ifp->info) | |
1590 | return ifp; | |
1591 | } | |
1592 | return NULL; | |
9f0edbc9 | 1593 | } |