]>
Commit | Line | Data |
---|---|---|
12e41d03 | 1 | /* |
896014f4 DL |
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. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along | |
15 | * with this program; see the file COPYING; if not, write to the Free Software | |
16 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
17 | */ | |
12e41d03 DL |
18 | |
19 | #include <zebra.h> | |
20 | ||
21 | #include "if.h" | |
22 | #include "log.h" | |
23 | #include "vty.h" | |
24 | #include "memory.h" | |
25 | #include "prefix.h" | |
469351b3 | 26 | #include "vrf.h" |
9f0edbc9 | 27 | #include "linklist.h" |
7176984f | 28 | #include "plist.h" |
a625e937 | 29 | #include "hash.h" |
37664928 | 30 | #include "ferr.h" |
12e41d03 DL |
31 | |
32 | #include "pimd.h" | |
c2cf4b02 | 33 | #include "pim_instance.h" |
cba44481 | 34 | #include "pim_zebra.h" |
12e41d03 DL |
35 | #include "pim_iface.h" |
36 | #include "pim_igmp.h" | |
37 | #include "pim_mroute.h" | |
38 | #include "pim_oil.h" | |
39 | #include "pim_str.h" | |
40 | #include "pim_pim.h" | |
41 | #include "pim_neighbor.h" | |
42 | #include "pim_ifchannel.h" | |
12e41d03 DL |
43 | #include "pim_sock.h" |
44 | #include "pim_time.h" | |
45 | #include "pim_ssmpingd.h" | |
7176984f | 46 | #include "pim_rp.h" |
cba44481 | 47 | #include "pim_nht.h" |
69ccd63e | 48 | #include "pim_jp_agg.h" |
12e41d03 DL |
49 | |
50 | static void pim_if_igmp_join_del_all(struct interface *ifp); | |
dba88ccb | 51 | static int igmp_join_sock(const char *ifname, ifindex_t ifindex, |
d62a17ae | 52 | struct in_addr group_addr, |
53 | struct in_addr source_addr); | |
12e41d03 | 54 | |
f88df3a6 | 55 | void pim_if_init(struct pim_instance *pim) |
ea4a71fc | 56 | { |
d62a17ae | 57 | int i; |
dc0665f1 | 58 | |
d62a17ae | 59 | for (i = 0; i < MAXVIFS; i++) |
f88df3a6 | 60 | pim->iface_vif_index[i] = 0; |
ea4a71fc DS |
61 | } |
62 | ||
f88df3a6 | 63 | void pim_if_terminate(struct pim_instance *pim) |
ea4a71fc | 64 | { |
1a8a3da8 DS |
65 | // Nothing to do at this moment |
66 | return; | |
ea4a71fc DS |
67 | } |
68 | ||
69 | static void *if_list_clean(struct pim_interface *pim_ifp) | |
70 | { | |
ad7b74c4 DS |
71 | struct pim_ifchannel *ch; |
72 | ||
f09eaf1c | 73 | if (pim_ifp->igmp_join_list) |
affe9e99 | 74 | list_delete_and_null(&pim_ifp->igmp_join_list); |
ea4a71fc | 75 | |
f09eaf1c | 76 | if (pim_ifp->igmp_socket_list) |
affe9e99 | 77 | list_delete_and_null(&pim_ifp->igmp_socket_list); |
ea4a71fc | 78 | |
f09eaf1c | 79 | if (pim_ifp->pim_neighbor_list) |
affe9e99 | 80 | list_delete_and_null(&pim_ifp->pim_neighbor_list); |
ea4a71fc | 81 | |
d62a17ae | 82 | if (pim_ifp->upstream_switch_list) |
affe9e99 | 83 | list_delete_and_null(&pim_ifp->upstream_switch_list); |
982bff89 | 84 | |
69ccd63e | 85 | if (pim_ifp->sec_addr_list) |
affe9e99 | 86 | list_delete_and_null(&pim_ifp->sec_addr_list); |
69ccd63e | 87 | |
55cd0f61 DS |
88 | while (!RB_EMPTY(pim_ifchannel_rb, &pim_ifp->ifchannel_rb)) { |
89 | ch = RB_ROOT(pim_ifchannel_rb, &pim_ifp->ifchannel_rb); | |
90 | ||
ad7b74c4 | 91 | pim_ifchannel_delete(ch); |
55cd0f61 | 92 | } |
a625e937 | 93 | |
d62a17ae | 94 | XFREE(MTYPE_PIM_INTERFACE, pim_ifp); |
ea4a71fc | 95 | |
d62a17ae | 96 | return 0; |
ea4a71fc DS |
97 | } |
98 | ||
f09eaf1c DS |
99 | static void pim_sec_addr_free(struct pim_secondary_addr *sec_addr) |
100 | { | |
101 | XFREE(MTYPE_PIM_SEC_ADDR, sec_addr); | |
102 | } | |
103 | ||
104 | static int pim_sec_addr_comp(const void *p1, const void *p2) | |
105 | { | |
106 | const struct pim_secondary_addr *sec1 = p1; | |
107 | const struct pim_secondary_addr *sec2 = p2; | |
108 | ||
109 | if (sec1->addr.family == AF_INET && sec2->addr.family == AF_INET6) | |
110 | return -1; | |
111 | ||
112 | if (sec1->addr.family == AF_INET6 && sec2->addr.family == AF_INET) | |
113 | return 1; | |
114 | ||
115 | if (sec1->addr.family == AF_INET) { | |
116 | if (ntohl(sec1->addr.u.prefix4.s_addr) | |
117 | < ntohl(sec2->addr.u.prefix4.s_addr)) | |
118 | return -1; | |
119 | ||
120 | if (ntohl(sec1->addr.u.prefix4.s_addr) | |
121 | > ntohl(sec2->addr.u.prefix4.s_addr)) | |
122 | return 1; | |
123 | } else { | |
124 | return memcmp(&sec1->addr.u.prefix6, &sec2->addr.u.prefix6, | |
125 | sizeof(struct in6_addr)); | |
126 | } | |
127 | ||
128 | return 0; | |
129 | } | |
130 | ||
12e41d03 DL |
131 | struct pim_interface *pim_if_new(struct interface *ifp, int igmp, int pim) |
132 | { | |
d62a17ae | 133 | struct pim_interface *pim_ifp; |
134 | ||
135 | zassert(ifp); | |
136 | zassert(!ifp->info); | |
137 | ||
138 | pim_ifp = XCALLOC(MTYPE_PIM_INTERFACE, sizeof(*pim_ifp)); | |
139 | if (!pim_ifp) { | |
140 | zlog_err("PIM XCALLOC(%zu) failure", sizeof(*pim_ifp)); | |
141 | return 0; | |
142 | } | |
143 | ||
144 | pim_ifp->options = 0; | |
18d8291f | 145 | pim_ifp->pim = pim_get_pim_instance(ifp->vrf_id); |
d62a17ae | 146 | pim_ifp->mroute_vif_index = -1; |
147 | ||
148 | pim_ifp->igmp_version = IGMP_DEFAULT_VERSION; | |
149 | pim_ifp->igmp_default_robustness_variable = | |
150 | IGMP_DEFAULT_ROBUSTNESS_VARIABLE; | |
151 | pim_ifp->igmp_default_query_interval = IGMP_GENERAL_QUERY_INTERVAL; | |
152 | pim_ifp->igmp_query_max_response_time_dsec = | |
153 | IGMP_QUERY_MAX_RESPONSE_TIME_DSEC; | |
154 | pim_ifp->igmp_specific_query_max_response_time_dsec = | |
155 | IGMP_SPECIFIC_QUERY_MAX_RESPONSE_TIME_DSEC; | |
156 | ||
157 | /* | |
158 | RFC 3376: 8.3. Query Response Interval | |
159 | The number of seconds represented by the [Query Response Interval] | |
160 | must be less than the [Query Interval]. | |
161 | */ | |
162 | zassert(pim_ifp->igmp_query_max_response_time_dsec | |
163 | < pim_ifp->igmp_default_query_interval); | |
164 | ||
165 | if (pim) | |
166 | PIM_IF_DO_PIM(pim_ifp->options); | |
167 | if (igmp) | |
168 | PIM_IF_DO_IGMP(pim_ifp->options); | |
169 | ||
170 | PIM_IF_DO_IGMP_LISTEN_ALLROUTERS(pim_ifp->options); | |
171 | ||
172 | pim_ifp->igmp_join_list = NULL; | |
173 | pim_ifp->igmp_socket_list = NULL; | |
174 | pim_ifp->pim_neighbor_list = NULL; | |
175 | pim_ifp->upstream_switch_list = NULL; | |
d62a17ae | 176 | pim_ifp->pim_generation_id = 0; |
177 | ||
178 | /* list of struct igmp_sock */ | |
179 | pim_ifp->igmp_socket_list = list_new(); | |
180 | if (!pim_ifp->igmp_socket_list) { | |
f09eaf1c DS |
181 | zlog_err("%s: failure: igmp_socket_list=list_new()", |
182 | __PRETTY_FUNCTION__); | |
d62a17ae | 183 | return if_list_clean(pim_ifp); |
184 | } | |
185 | pim_ifp->igmp_socket_list->del = (void (*)(void *))igmp_sock_free; | |
186 | ||
187 | /* list of struct pim_neighbor */ | |
188 | pim_ifp->pim_neighbor_list = list_new(); | |
189 | if (!pim_ifp->pim_neighbor_list) { | |
f09eaf1c DS |
190 | zlog_err("%s: failure: pim_neighbor_list=list_new()", |
191 | __PRETTY_FUNCTION__); | |
d62a17ae | 192 | return if_list_clean(pim_ifp); |
193 | } | |
194 | pim_ifp->pim_neighbor_list->del = (void (*)(void *))pim_neighbor_free; | |
195 | ||
196 | pim_ifp->upstream_switch_list = list_new(); | |
197 | if (!pim_ifp->upstream_switch_list) { | |
f09eaf1c DS |
198 | zlog_err("%s: failure: upstream_switch_list=list_new()", |
199 | __PRETTY_FUNCTION__); | |
d62a17ae | 200 | return if_list_clean(pim_ifp); |
201 | } | |
69ccd63e DS |
202 | pim_ifp->upstream_switch_list->del = |
203 | (void (*)(void *))pim_jp_agg_group_list_free; | |
204 | pim_ifp->upstream_switch_list->cmp = pim_jp_agg_group_list_cmp; | |
d62a17ae | 205 | |
f09eaf1c DS |
206 | pim_ifp->sec_addr_list = list_new(); |
207 | if (!pim_ifp->sec_addr_list) { | |
208 | zlog_err("%s: failure: secondary addresslist", | |
209 | __PRETTY_FUNCTION__); | |
b8ca17c2 | 210 | return if_list_clean(pim_ifp); |
f09eaf1c DS |
211 | } |
212 | pim_ifp->sec_addr_list->del = (void (*)(void *))pim_sec_addr_free; | |
213 | pim_ifp->sec_addr_list->cmp = | |
214 | (int (*)(void *, void *))pim_sec_addr_comp; | |
215 | ||
ad7b74c4 | 216 | RB_INIT(pim_ifchannel_rb, &pim_ifp->ifchannel_rb); |
d62a17ae | 217 | |
218 | ifp->info = pim_ifp; | |
219 | ||
220 | pim_sock_reset(ifp); | |
221 | ||
222 | pim_if_add_vif(ifp); | |
223 | ||
224 | return pim_ifp; | |
12e41d03 DL |
225 | } |
226 | ||
227 | void pim_if_delete(struct interface *ifp) | |
228 | { | |
d62a17ae | 229 | struct pim_interface *pim_ifp; |
ad7b74c4 | 230 | struct pim_ifchannel *ch; |
12e41d03 | 231 | |
d62a17ae | 232 | zassert(ifp); |
233 | pim_ifp = ifp->info; | |
234 | zassert(pim_ifp); | |
12e41d03 | 235 | |
d62a17ae | 236 | if (pim_ifp->igmp_join_list) { |
237 | pim_if_igmp_join_del_all(ifp); | |
238 | } | |
12e41d03 | 239 | |
d62a17ae | 240 | pim_ifchannel_delete_all(ifp); |
241 | igmp_sock_delete_all(ifp); | |
12e41d03 | 242 | |
d62a17ae | 243 | pim_neighbor_delete_all(ifp, "Interface removed from configuration"); |
12e41d03 | 244 | |
d62a17ae | 245 | pim_if_del_vif(ifp); |
12e41d03 | 246 | |
affe9e99 DS |
247 | list_delete_and_null(&pim_ifp->igmp_socket_list); |
248 | list_delete_and_null(&pim_ifp->pim_neighbor_list); | |
249 | list_delete_and_null(&pim_ifp->upstream_switch_list); | |
250 | list_delete_and_null(&pim_ifp->sec_addr_list); | |
12e41d03 | 251 | |
b0f525a8 QY |
252 | if (pim_ifp->boundary_oil_plist) |
253 | XFREE(MTYPE_PIM_INTERFACE, pim_ifp->boundary_oil_plist); | |
254 | ||
55cd0f61 DS |
255 | while (!RB_EMPTY(pim_ifchannel_rb, &pim_ifp->ifchannel_rb)) { |
256 | ch = RB_ROOT(pim_ifchannel_rb, &pim_ifp->ifchannel_rb); | |
257 | ||
ad7b74c4 | 258 | pim_ifchannel_delete(ch); |
55cd0f61 | 259 | } |
a625e937 | 260 | |
d62a17ae | 261 | XFREE(MTYPE_PIM_INTERFACE, pim_ifp); |
12e41d03 | 262 | |
d62a17ae | 263 | ifp->info = NULL; |
12e41d03 DL |
264 | } |
265 | ||
266 | void pim_if_update_could_assert(struct interface *ifp) | |
267 | { | |
d62a17ae | 268 | struct pim_interface *pim_ifp; |
d62a17ae | 269 | struct pim_ifchannel *ch; |
12e41d03 | 270 | |
d62a17ae | 271 | pim_ifp = ifp->info; |
272 | zassert(pim_ifp); | |
12e41d03 | 273 | |
a2addae8 | 274 | RB_FOREACH (ch, pim_ifchannel_rb, &pim_ifp->ifchannel_rb) { |
d62a17ae | 275 | pim_ifchannel_update_could_assert(ch); |
276 | } | |
12e41d03 DL |
277 | } |
278 | ||
279 | static void pim_if_update_my_assert_metric(struct interface *ifp) | |
280 | { | |
d62a17ae | 281 | struct pim_interface *pim_ifp; |
d62a17ae | 282 | struct pim_ifchannel *ch; |
12e41d03 | 283 | |
d62a17ae | 284 | pim_ifp = ifp->info; |
285 | zassert(pim_ifp); | |
12e41d03 | 286 | |
a2addae8 | 287 | RB_FOREACH (ch, pim_ifchannel_rb, &pim_ifp->ifchannel_rb) { |
d62a17ae | 288 | pim_ifchannel_update_my_assert_metric(ch); |
289 | } | |
12e41d03 DL |
290 | } |
291 | ||
292 | static void pim_addr_change(struct interface *ifp) | |
293 | { | |
d62a17ae | 294 | struct pim_interface *pim_ifp; |
295 | ||
296 | pim_ifp = ifp->info; | |
297 | zassert(pim_ifp); | |
298 | ||
299 | pim_if_dr_election(ifp); /* router's own DR Priority (addr) changes -- | |
300 | Done TODO T30 */ | |
301 | pim_if_update_join_desired(pim_ifp); /* depends on DR */ | |
302 | pim_if_update_could_assert(ifp); /* depends on DR */ | |
303 | pim_if_update_my_assert_metric(ifp); /* depends on could_assert */ | |
304 | pim_if_update_assert_tracking_desired( | |
305 | ifp); /* depends on DR, join_desired */ | |
306 | ||
307 | /* | |
308 | RFC 4601: 4.3.1. Sending Hello Messages | |
309 | ||
310 | 1) Before an interface goes down or changes primary IP address, a | |
311 | Hello message with a zero HoldTime should be sent immediately | |
312 | (with the old IP address if the IP address changed). | |
313 | -- FIXME See CAVEAT C13 | |
314 | ||
315 | 2) After an interface has changed its IP address, it MUST send a | |
316 | Hello message with its new IP address. | |
317 | -- DONE below | |
318 | ||
319 | 3) If an interface changes one of its secondary IP addresses, a | |
320 | Hello message with an updated Address_List option and a non-zero | |
321 | HoldTime should be sent immediately. | |
322 | -- FIXME See TODO T31 | |
323 | */ | |
324 | pim_ifp->pim_ifstat_hello_sent = 0; /* reset hello counter */ | |
325 | if (pim_ifp->pim_sock_fd < 0) | |
326 | return; | |
327 | pim_hello_restart_now(ifp); /* send hello and restart timer */ | |
12e41d03 DL |
328 | } |
329 | ||
12e41d03 DL |
330 | static int detect_primary_address_change(struct interface *ifp, |
331 | int force_prim_as_any, | |
332 | const char *caller) | |
333 | { | |
d62a17ae | 334 | struct pim_interface *pim_ifp = ifp->info; |
335 | struct in_addr new_prim_addr; | |
336 | int changed; | |
337 | ||
338 | if (force_prim_as_any) | |
339 | new_prim_addr.s_addr = INADDR_ANY; | |
340 | else | |
341 | new_prim_addr = pim_find_primary_addr(ifp); | |
342 | ||
343 | changed = new_prim_addr.s_addr != pim_ifp->primary_address.s_addr; | |
344 | ||
345 | if (PIM_DEBUG_ZEBRA) { | |
346 | char new_prim_str[INET_ADDRSTRLEN]; | |
347 | char old_prim_str[INET_ADDRSTRLEN]; | |
348 | pim_inet4_dump("<new?>", new_prim_addr, new_prim_str, | |
349 | sizeof(new_prim_str)); | |
350 | pim_inet4_dump("<old?>", pim_ifp->primary_address, old_prim_str, | |
351 | sizeof(old_prim_str)); | |
352 | zlog_debug("%s: old=%s new=%s on interface %s: %s", | |
353 | __PRETTY_FUNCTION__, old_prim_str, new_prim_str, | |
354 | ifp->name, changed ? "changed" : "unchanged"); | |
355 | } | |
356 | ||
357 | if (changed) { | |
358 | pim_ifp->primary_address = new_prim_addr; | |
359 | } | |
360 | ||
361 | return changed; | |
12e41d03 DL |
362 | } |
363 | ||
7176984f | 364 | static struct pim_secondary_addr * |
294b6d72 | 365 | pim_sec_addr_find(struct pim_interface *pim_ifp, struct prefix *addr) |
7176984f | 366 | { |
d62a17ae | 367 | struct pim_secondary_addr *sec_addr; |
368 | struct listnode *node; | |
7176984f | 369 | |
d62a17ae | 370 | for (ALL_LIST_ELEMENTS_RO(pim_ifp->sec_addr_list, node, sec_addr)) { |
371 | if (prefix_cmp(&sec_addr->addr, addr)) { | |
372 | return sec_addr; | |
373 | } | |
374 | } | |
7176984f | 375 | |
d62a17ae | 376 | return NULL; |
7176984f | 377 | } |
378 | ||
379 | static void pim_sec_addr_del(struct pim_interface *pim_ifp, | |
d62a17ae | 380 | struct pim_secondary_addr *sec_addr) |
7176984f | 381 | { |
d62a17ae | 382 | listnode_delete(pim_ifp->sec_addr_list, sec_addr); |
383 | pim_sec_addr_free(sec_addr); | |
7176984f | 384 | } |
385 | ||
294b6d72 | 386 | static int pim_sec_addr_add(struct pim_interface *pim_ifp, struct prefix *addr) |
7176984f | 387 | { |
d62a17ae | 388 | int changed = 0; |
389 | struct pim_secondary_addr *sec_addr; | |
390 | ||
391 | sec_addr = pim_sec_addr_find(pim_ifp, addr); | |
392 | if (sec_addr) { | |
393 | sec_addr->flags &= ~PIM_SEC_ADDRF_STALE; | |
394 | return changed; | |
395 | } | |
396 | ||
d62a17ae | 397 | sec_addr = XCALLOC(MTYPE_PIM_SEC_ADDR, sizeof(*sec_addr)); |
f09eaf1c | 398 | if (!sec_addr) |
d62a17ae | 399 | return changed; |
d62a17ae | 400 | |
401 | changed = 1; | |
402 | sec_addr->addr = *addr; | |
403 | listnode_add_sort(pim_ifp->sec_addr_list, sec_addr); | |
404 | ||
405 | return changed; | |
7176984f | 406 | } |
407 | ||
408 | static int pim_sec_addr_del_all(struct pim_interface *pim_ifp) | |
409 | { | |
d62a17ae | 410 | int changed = 0; |
411 | ||
d62a17ae | 412 | if (!list_isempty(pim_ifp->sec_addr_list)) { |
413 | changed = 1; | |
414 | /* remove all nodes and free up the list itself */ | |
415 | list_delete_all_node(pim_ifp->sec_addr_list); | |
d62a17ae | 416 | } |
417 | ||
418 | return changed; | |
7176984f | 419 | } |
420 | ||
421 | static int pim_sec_addr_update(struct interface *ifp) | |
422 | { | |
d62a17ae | 423 | struct pim_interface *pim_ifp = ifp->info; |
424 | struct connected *ifc; | |
425 | struct listnode *node; | |
426 | struct listnode *nextnode; | |
427 | struct pim_secondary_addr *sec_addr; | |
428 | int changed = 0; | |
429 | ||
996c9314 | 430 | for (ALL_LIST_ELEMENTS_RO(pim_ifp->sec_addr_list, node, sec_addr)) { |
f09eaf1c | 431 | sec_addr->flags |= PIM_SEC_ADDRF_STALE; |
d62a17ae | 432 | } |
433 | ||
434 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, ifc)) { | |
435 | struct prefix *p = ifc->address; | |
436 | ||
437 | if (PIM_INADDR_IS_ANY(p->u.prefix4)) { | |
438 | continue; | |
439 | } | |
440 | ||
441 | if (pim_ifp->primary_address.s_addr == p->u.prefix4.s_addr) { | |
442 | /* don't add the primary address into the secondary | |
443 | * address list */ | |
444 | continue; | |
445 | } | |
446 | ||
447 | if (pim_sec_addr_add(pim_ifp, p)) { | |
448 | changed = 1; | |
449 | } | |
450 | } | |
451 | ||
f09eaf1c DS |
452 | /* Drop stale entries */ |
453 | for (ALL_LIST_ELEMENTS(pim_ifp->sec_addr_list, node, nextnode, | |
454 | sec_addr)) { | |
455 | if (sec_addr->flags & PIM_SEC_ADDRF_STALE) { | |
456 | pim_sec_addr_del(pim_ifp, sec_addr); | |
457 | changed = 1; | |
d62a17ae | 458 | } |
459 | } | |
460 | ||
461 | return changed; | |
7176984f | 462 | } |
463 | ||
4763cd0e | 464 | static int detect_secondary_address_change(struct interface *ifp, |
d62a17ae | 465 | int force_prim_as_any, |
466 | const char *caller) | |
12e41d03 | 467 | { |
d62a17ae | 468 | struct pim_interface *pim_ifp = ifp->info; |
469 | int changed = 0; | |
470 | ||
471 | if (force_prim_as_any) { | |
472 | /* if primary address is being forced to zero just flush the | |
473 | * secondary address list */ | |
474 | changed = pim_sec_addr_del_all(pim_ifp); | |
475 | } else { | |
476 | /* re-evaluate the secondary address list */ | |
477 | changed = pim_sec_addr_update(ifp); | |
478 | } | |
479 | ||
480 | return changed; | |
4763cd0e | 481 | } |
482 | ||
d62a17ae | 483 | static void detect_address_change(struct interface *ifp, int force_prim_as_any, |
484 | const char *caller) | |
4763cd0e | 485 | { |
d62a17ae | 486 | int changed = 0; |
487 | struct pim_interface *pim_ifp; | |
12e41d03 | 488 | |
d62a17ae | 489 | pim_ifp = ifp->info; |
490 | if (!pim_ifp) | |
491 | return; | |
4763cd0e | 492 | |
d62a17ae | 493 | if (detect_primary_address_change(ifp, force_prim_as_any, caller)) { |
494 | changed = 1; | |
495 | } | |
12e41d03 | 496 | |
d62a17ae | 497 | if (detect_secondary_address_change(ifp, force_prim_as_any, caller)) { |
498 | changed = 1; | |
499 | } | |
4763cd0e | 500 | |
501 | ||
d62a17ae | 502 | if (changed) { |
503 | if (!PIM_IF_TEST_PIM(pim_ifp->options)) { | |
504 | return; | |
505 | } | |
4763cd0e | 506 | |
d62a17ae | 507 | pim_addr_change(ifp); |
508 | } | |
12e41d03 | 509 | |
d62a17ae | 510 | /* XXX: if we have unnumbered interfaces we need to run detect address |
511 | * address change on all of them when the lo address changes */ | |
12e41d03 DL |
512 | } |
513 | ||
4763cd0e | 514 | int pim_update_source_set(struct interface *ifp, struct in_addr source) |
12e41d03 | 515 | { |
d62a17ae | 516 | struct pim_interface *pim_ifp = ifp->info; |
12e41d03 | 517 | |
d62a17ae | 518 | if (!pim_ifp) { |
519 | return PIM_IFACE_NOT_FOUND; | |
520 | } | |
12e41d03 | 521 | |
d62a17ae | 522 | if (pim_ifp->update_source.s_addr == source.s_addr) { |
523 | return PIM_UPDATE_SOURCE_DUP; | |
524 | } | |
4763cd0e | 525 | |
d62a17ae | 526 | pim_ifp->update_source = source; |
527 | detect_address_change(ifp, 0 /* force_prim_as_any */, | |
528 | __PRETTY_FUNCTION__); | |
4763cd0e | 529 | |
d62a17ae | 530 | return PIM_SUCCESS; |
12e41d03 DL |
531 | } |
532 | ||
533 | void pim_if_addr_add(struct connected *ifc) | |
534 | { | |
d62a17ae | 535 | struct pim_interface *pim_ifp; |
536 | struct interface *ifp; | |
537 | struct in_addr ifaddr; | |
538 | ||
539 | zassert(ifc); | |
540 | ||
541 | ifp = ifc->ifp; | |
542 | zassert(ifp); | |
543 | pim_ifp = ifp->info; | |
544 | if (!pim_ifp) | |
545 | return; | |
546 | ||
547 | if (!if_is_operative(ifp)) | |
548 | return; | |
549 | ||
550 | if (PIM_DEBUG_ZEBRA) { | |
551 | char buf[BUFSIZ]; | |
552 | prefix2str(ifc->address, buf, BUFSIZ); | |
553 | zlog_debug("%s: %s ifindex=%d connected IP address %s %s", | |
554 | __PRETTY_FUNCTION__, ifp->name, ifp->ifindex, buf, | |
555 | CHECK_FLAG(ifc->flags, ZEBRA_IFA_SECONDARY) | |
556 | ? "secondary" | |
557 | : "primary"); | |
558 | } | |
559 | ||
560 | ifaddr = ifc->address->u.prefix4; | |
561 | ||
562 | detect_address_change(ifp, 0, __PRETTY_FUNCTION__); | |
563 | ||
2002dcdb DS |
564 | // if (ifc->address->family != AF_INET) |
565 | // return; | |
d62a17ae | 566 | |
567 | if (PIM_IF_TEST_IGMP(pim_ifp->options)) { | |
568 | struct igmp_sock *igmp; | |
569 | ||
570 | /* lookup IGMP socket */ | |
571 | igmp = pim_igmp_sock_lookup_ifaddr(pim_ifp->igmp_socket_list, | |
572 | ifaddr); | |
573 | if (!igmp) { | |
574 | /* if addr new, add IGMP socket */ | |
c77a04e4 DS |
575 | if (ifc->address->family == AF_INET) |
576 | pim_igmp_sock_add(pim_ifp->igmp_socket_list, | |
f83f3966 MS |
577 | ifaddr, ifp, false); |
578 | } else if (igmp->mtrace_only) { | |
579 | igmp_sock_delete(igmp); | |
580 | pim_igmp_sock_add(pim_ifp->igmp_socket_list, ifaddr, | |
581 | ifp, false); | |
d62a17ae | 582 | } |
583 | ||
584 | /* Replay Static IGMP groups */ | |
585 | if (pim_ifp->igmp_join_list) { | |
586 | struct listnode *node; | |
587 | struct listnode *nextnode; | |
588 | struct igmp_join *ij; | |
589 | int join_fd; | |
590 | ||
591 | for (ALL_LIST_ELEMENTS(pim_ifp->igmp_join_list, node, | |
592 | nextnode, ij)) { | |
593 | /* Close socket and reopen with Source and Group | |
594 | */ | |
595 | close(ij->sock_fd); | |
596 | join_fd = igmp_join_sock( | |
597 | ifp->name, ifp->ifindex, ij->group_addr, | |
598 | ij->source_addr); | |
599 | if (join_fd < 0) { | |
600 | char group_str[INET_ADDRSTRLEN]; | |
601 | char source_str[INET_ADDRSTRLEN]; | |
602 | pim_inet4_dump("<grp?>", ij->group_addr, | |
603 | group_str, | |
604 | sizeof(group_str)); | |
605 | pim_inet4_dump( | |
606 | "<src?>", ij->source_addr, | |
607 | source_str, sizeof(source_str)); | |
608 | zlog_warn( | |
609 | "%s: igmp_join_sock() failure for IGMP group %s source %s on interface %s", | |
610 | __PRETTY_FUNCTION__, group_str, | |
611 | source_str, ifp->name); | |
612 | /* warning only */ | |
613 | } else | |
614 | ij->sock_fd = join_fd; | |
615 | } | |
616 | } | |
617 | } /* igmp */ | |
f83f3966 MS |
618 | else { |
619 | struct igmp_sock *igmp; | |
620 | ||
621 | /* lookup IGMP socket */ | |
622 | igmp = pim_igmp_sock_lookup_ifaddr(pim_ifp->igmp_socket_list, | |
623 | ifaddr); | |
624 | if (ifc->address->family == AF_INET) { | |
625 | if (igmp) | |
626 | igmp_sock_delete(igmp); | |
627 | /* if addr new, add IGMP socket */ | |
628 | pim_igmp_sock_add(pim_ifp->igmp_socket_list, ifaddr, | |
629 | ifp, true); | |
630 | } | |
631 | } /* igmp mtrace only */ | |
d62a17ae | 632 | |
633 | if (PIM_IF_TEST_PIM(pim_ifp->options)) { | |
634 | ||
635 | if (PIM_INADDR_ISNOT_ANY(pim_ifp->primary_address)) { | |
636 | ||
637 | /* Interface has a valid socket ? */ | |
638 | if (pim_ifp->pim_sock_fd < 0) { | |
639 | if (pim_sock_add(ifp)) { | |
640 | zlog_warn( | |
641 | "Failure creating PIM socket for interface %s", | |
642 | ifp->name); | |
643 | } | |
644 | } | |
645 | struct pim_nexthop_cache *pnc = NULL; | |
646 | struct pim_rpf rpf; | |
647 | struct zclient *zclient = NULL; | |
648 | ||
649 | zclient = pim_zebra_zclient_get(); | |
650 | /* RP config might come prior to (local RP's interface) | |
651 | IF UP event. | |
652 | In this case, pnc would not have pim enabled | |
653 | nexthops. | |
654 | Once Interface is UP and pim info is available, | |
655 | reregister | |
656 | with RNH address to receive update and add the | |
657 | interface as nexthop. */ | |
658 | memset(&rpf, 0, sizeof(struct pim_rpf)); | |
659 | rpf.rpf_addr.family = AF_INET; | |
660 | rpf.rpf_addr.prefixlen = IPV4_MAX_BITLEN; | |
661 | rpf.rpf_addr.u.prefix4 = ifc->address->u.prefix4; | |
d0a4f55d | 662 | pnc = pim_nexthop_cache_find(pim_ifp->pim, &rpf); |
d62a17ae | 663 | if (pnc) |
64c86530 | 664 | pim_sendmsg_zebra_rnh(pim_ifp->pim, zclient, |
cf663ceb | 665 | pnc, |
d62a17ae | 666 | ZEBRA_NEXTHOP_REGISTER); |
667 | } | |
668 | } /* pim */ | |
669 | ||
670 | /* | |
671 | PIM or IGMP is enabled on interface, and there is at least one | |
672 | address assigned, then try to create a vif_index. | |
673 | */ | |
674 | if (pim_ifp->mroute_vif_index < 0) { | |
675 | pim_if_add_vif(ifp); | |
676 | } | |
677 | pim_ifchannel_scan_forward_start(ifp); | |
12e41d03 DL |
678 | } |
679 | ||
680 | static void pim_if_addr_del_igmp(struct connected *ifc) | |
681 | { | |
d62a17ae | 682 | struct pim_interface *pim_ifp = ifc->ifp->info; |
683 | struct igmp_sock *igmp; | |
684 | struct in_addr ifaddr; | |
685 | ||
686 | if (ifc->address->family != AF_INET) { | |
687 | /* non-IPv4 address */ | |
688 | return; | |
689 | } | |
690 | ||
691 | if (!pim_ifp) { | |
692 | /* IGMP not enabled on interface */ | |
693 | return; | |
694 | } | |
695 | ||
696 | ifaddr = ifc->address->u.prefix4; | |
697 | ||
698 | /* lookup IGMP socket */ | |
699 | igmp = pim_igmp_sock_lookup_ifaddr(pim_ifp->igmp_socket_list, ifaddr); | |
700 | if (igmp) { | |
701 | /* if addr found, del IGMP socket */ | |
702 | igmp_sock_delete(igmp); | |
703 | } | |
12e41d03 DL |
704 | } |
705 | ||
706 | static void pim_if_addr_del_pim(struct connected *ifc) | |
707 | { | |
d62a17ae | 708 | struct pim_interface *pim_ifp = ifc->ifp->info; |
12e41d03 | 709 | |
d62a17ae | 710 | if (ifc->address->family != AF_INET) { |
711 | /* non-IPv4 address */ | |
712 | return; | |
713 | } | |
12e41d03 | 714 | |
d62a17ae | 715 | if (!pim_ifp) { |
716 | /* PIM not enabled on interface */ | |
717 | return; | |
718 | } | |
719 | ||
720 | if (PIM_INADDR_ISNOT_ANY(pim_ifp->primary_address)) { | |
721 | /* Interface keeps a valid primary address */ | |
722 | return; | |
723 | } | |
12e41d03 | 724 | |
d62a17ae | 725 | if (pim_ifp->pim_sock_fd < 0) { |
726 | /* Interface does not hold a valid socket any longer */ | |
727 | return; | |
728 | } | |
294b6d72 | 729 | |
d62a17ae | 730 | /* |
731 | pim_sock_delete() closes the socket, stops read and timer threads, | |
732 | and kills all neighbors. | |
733 | */ | |
734 | pim_sock_delete(ifc->ifp, | |
735 | "last address has been removed from interface"); | |
736 | } | |
12e41d03 | 737 | |
d62a17ae | 738 | void pim_if_addr_del(struct connected *ifc, int force_prim_as_any) |
739 | { | |
740 | struct interface *ifp; | |
741 | ||
742 | zassert(ifc); | |
743 | ifp = ifc->ifp; | |
744 | zassert(ifp); | |
745 | ||
d62a17ae | 746 | if (PIM_DEBUG_ZEBRA) { |
747 | char buf[BUFSIZ]; | |
748 | prefix2str(ifc->address, buf, BUFSIZ); | |
749 | zlog_debug("%s: %s ifindex=%d disconnected IP address %s %s", | |
750 | __PRETTY_FUNCTION__, ifp->name, ifp->ifindex, buf, | |
751 | CHECK_FLAG(ifc->flags, ZEBRA_IFA_SECONDARY) | |
752 | ? "secondary" | |
753 | : "primary"); | |
754 | } | |
12e41d03 | 755 | |
d62a17ae | 756 | detect_address_change(ifp, force_prim_as_any, __PRETTY_FUNCTION__); |
757 | ||
758 | pim_if_addr_del_igmp(ifc); | |
759 | pim_if_addr_del_pim(ifc); | |
12e41d03 DL |
760 | } |
761 | ||
762 | void pim_if_addr_add_all(struct interface *ifp) | |
763 | { | |
d62a17ae | 764 | struct connected *ifc; |
765 | struct listnode *node; | |
766 | struct listnode *nextnode; | |
767 | int v4_addrs = 0; | |
768 | int v6_addrs = 0; | |
769 | struct pim_interface *pim_ifp = ifp->info; | |
770 | ||
771 | ||
772 | /* PIM/IGMP enabled ? */ | |
773 | if (!pim_ifp) | |
774 | return; | |
775 | ||
776 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nextnode, ifc)) { | |
777 | struct prefix *p = ifc->address; | |
778 | ||
779 | if (p->family != AF_INET) | |
780 | v6_addrs++; | |
781 | else | |
782 | v4_addrs++; | |
783 | pim_if_addr_add(ifc); | |
784 | } | |
d8424057 | 785 | |
d62a17ae | 786 | if (!v4_addrs && v6_addrs && !if_is_loopback(ifp)) { |
787 | if (PIM_IF_TEST_PIM(pim_ifp->options)) { | |
788 | ||
789 | /* Interface has a valid primary address ? */ | |
790 | if (PIM_INADDR_ISNOT_ANY(pim_ifp->primary_address)) { | |
791 | ||
792 | /* Interface has a valid socket ? */ | |
793 | if (pim_ifp->pim_sock_fd < 0) { | |
794 | if (pim_sock_add(ifp)) { | |
795 | zlog_warn( | |
796 | "Failure creating PIM socket for interface %s", | |
797 | ifp->name); | |
798 | } | |
799 | } | |
800 | } | |
801 | } /* pim */ | |
802 | } | |
803 | /* | |
804 | * PIM or IGMP is enabled on interface, and there is at least one | |
805 | * address assigned, then try to create a vif_index. | |
806 | */ | |
807 | if (pim_ifp->mroute_vif_index < 0) { | |
808 | pim_if_add_vif(ifp); | |
809 | } | |
810 | pim_ifchannel_scan_forward_start(ifp); | |
811 | ||
fec883d9 | 812 | pim_rp_setup(pim_ifp->pim); |
d62a17ae | 813 | pim_rp_check_on_if_add(pim_ifp); |
12e41d03 DL |
814 | } |
815 | ||
816 | void pim_if_addr_del_all(struct interface *ifp) | |
817 | { | |
d62a17ae | 818 | struct connected *ifc; |
819 | struct listnode *node; | |
820 | struct listnode *nextnode; | |
5ec5d976 | 821 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); |
819f099b DS |
822 | struct pim_instance *pim; |
823 | ||
824 | if (!vrf) | |
825 | return; | |
826 | pim = vrf->info; | |
d62a17ae | 827 | |
828 | /* PIM/IGMP enabled ? */ | |
829 | if (!ifp->info) | |
830 | return; | |
12e41d03 | 831 | |
d62a17ae | 832 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nextnode, ifc)) { |
833 | struct prefix *p = ifc->address; | |
12e41d03 | 834 | |
d62a17ae | 835 | if (p->family != AF_INET) |
836 | continue; | |
12e41d03 | 837 | |
d62a17ae | 838 | pim_if_addr_del(ifc, 1 /* force_prim_as_any=true */); |
839 | } | |
da3dcffb | 840 | |
5ec5d976 DS |
841 | pim_rp_setup(pim); |
842 | pim_i_am_rp_re_evaluate(pim); | |
12e41d03 DL |
843 | } |
844 | ||
845 | void pim_if_addr_del_all_igmp(struct interface *ifp) | |
846 | { | |
d62a17ae | 847 | struct connected *ifc; |
848 | struct listnode *node; | |
849 | struct listnode *nextnode; | |
850 | ||
851 | /* PIM/IGMP enabled ? */ | |
852 | if (!ifp->info) | |
853 | return; | |
854 | ||
855 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nextnode, ifc)) { | |
856 | struct prefix *p = ifc->address; | |
857 | ||
858 | if (p->family != AF_INET) | |
859 | continue; | |
860 | ||
861 | pim_if_addr_del_igmp(ifc); | |
862 | } | |
12e41d03 DL |
863 | } |
864 | ||
865 | void pim_if_addr_del_all_pim(struct interface *ifp) | |
866 | { | |
d62a17ae | 867 | struct connected *ifc; |
868 | struct listnode *node; | |
869 | struct listnode *nextnode; | |
870 | ||
871 | /* PIM/IGMP enabled ? */ | |
872 | if (!ifp->info) | |
873 | return; | |
874 | ||
875 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nextnode, ifc)) { | |
876 | struct prefix *p = ifc->address; | |
877 | ||
878 | if (p->family != AF_INET) | |
879 | continue; | |
880 | ||
881 | pim_if_addr_del_pim(ifc); | |
882 | } | |
12e41d03 DL |
883 | } |
884 | ||
d62a17ae | 885 | struct in_addr pim_find_primary_addr(struct interface *ifp) |
12e41d03 | 886 | { |
d62a17ae | 887 | struct connected *ifc; |
888 | struct listnode *node; | |
819f099b | 889 | struct in_addr addr = {0}; |
d62a17ae | 890 | int v4_addrs = 0; |
891 | int v6_addrs = 0; | |
892 | struct pim_interface *pim_ifp = ifp->info; | |
896b2044 | 893 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); |
d62a17ae | 894 | |
819f099b DS |
895 | if (!vrf) |
896 | return addr; | |
897 | ||
d62a17ae | 898 | if (pim_ifp && PIM_INADDR_ISNOT_ANY(pim_ifp->update_source)) { |
899 | return pim_ifp->update_source; | |
900 | } | |
901 | ||
902 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, ifc)) { | |
903 | struct prefix *p = ifc->address; | |
904 | ||
905 | if (p->family != AF_INET) { | |
906 | v6_addrs++; | |
907 | continue; | |
908 | } | |
909 | ||
910 | if (PIM_INADDR_IS_ANY(p->u.prefix4)) { | |
911 | zlog_warn( | |
912 | "%s: null IPv4 address connected to interface %s", | |
913 | __PRETTY_FUNCTION__, ifp->name); | |
914 | continue; | |
915 | } | |
916 | ||
917 | v4_addrs++; | |
918 | ||
919 | if (CHECK_FLAG(ifc->flags, ZEBRA_IFA_SECONDARY)) | |
920 | continue; | |
921 | ||
922 | return p->u.prefix4; | |
923 | } | |
924 | ||
925 | /* | |
926 | * If we have no v4_addrs and v6 is configured | |
927 | * We probably are using unnumbered | |
928 | * So let's grab the loopbacks v4 address | |
929 | * and use that as the primary address | |
930 | */ | |
931 | if (!v4_addrs && v6_addrs && !if_is_loopback(ifp)) { | |
932 | struct interface *lo_ifp; | |
fec883d9 | 933 | // DBS - Come back and check here |
896b2044 DS |
934 | if (ifp->vrf_id == VRF_DEFAULT) |
935 | lo_ifp = if_lookup_by_name("lo", vrf->vrf_id); | |
936 | else | |
937 | lo_ifp = if_lookup_by_name(vrf->name, vrf->vrf_id); | |
938 | ||
d62a17ae | 939 | if (lo_ifp) |
940 | return pim_find_primary_addr(lo_ifp); | |
941 | } | |
942 | ||
943 | addr.s_addr = PIM_NET_INADDR_ANY; | |
944 | ||
945 | return addr; | |
12e41d03 DL |
946 | } |
947 | ||
d62a17ae | 948 | static int pim_iface_next_vif_index(struct interface *ifp) |
744d91b3 | 949 | { |
f88df3a6 DS |
950 | struct pim_interface *pim_ifp = ifp->info; |
951 | struct pim_instance *pim = pim_ifp->pim; | |
d62a17ae | 952 | int i; |
f88df3a6 | 953 | |
d62a17ae | 954 | /* |
955 | * The pimreg vif is always going to be in index 0 | |
956 | * of the table. | |
957 | */ | |
958 | if (ifp->ifindex == PIM_OIF_PIM_REGISTER_VIF) | |
959 | return 0; | |
960 | ||
961 | for (i = 1; i < MAXVIFS; i++) { | |
f88df3a6 | 962 | if (pim->iface_vif_index[i] == 0) |
d62a17ae | 963 | return i; |
964 | } | |
965 | return MAXVIFS; | |
744d91b3 DS |
966 | } |
967 | ||
12e41d03 DL |
968 | /* |
969 | pim_if_add_vif() uses ifindex as vif_index | |
970 | ||
971 | see also pim_if_find_vifindex_by_ifindex() | |
972 | */ | |
973 | int pim_if_add_vif(struct interface *ifp) | |
974 | { | |
d62a17ae | 975 | struct pim_interface *pim_ifp = ifp->info; |
976 | struct in_addr ifaddr; | |
977 | unsigned char flags = 0; | |
978 | ||
979 | zassert(pim_ifp); | |
980 | ||
981 | if (pim_ifp->mroute_vif_index > 0) { | |
982 | zlog_warn("%s: vif_index=%d > 0 on interface %s ifindex=%d", | |
983 | __PRETTY_FUNCTION__, pim_ifp->mroute_vif_index, | |
984 | ifp->name, ifp->ifindex); | |
985 | return -1; | |
986 | } | |
987 | ||
988 | if (ifp->ifindex < 0) { | |
989 | zlog_warn("%s: ifindex=%d < 1 on interface %s", | |
990 | __PRETTY_FUNCTION__, ifp->ifindex, ifp->name); | |
991 | return -2; | |
992 | } | |
993 | ||
994 | ifaddr = pim_ifp->primary_address; | |
995 | if (ifp->ifindex != PIM_OIF_PIM_REGISTER_VIF | |
996 | && PIM_INADDR_IS_ANY(ifaddr)) { | |
997 | zlog_warn( | |
998 | "%s: could not get address for interface %s ifindex=%d", | |
999 | __PRETTY_FUNCTION__, ifp->name, ifp->ifindex); | |
1000 | return -4; | |
1001 | } | |
1002 | ||
1003 | pim_ifp->mroute_vif_index = pim_iface_next_vif_index(ifp); | |
1004 | ||
1005 | if (pim_ifp->mroute_vif_index >= MAXVIFS) { | |
1006 | zlog_warn( | |
1007 | "%s: Attempting to configure more than MAXVIFS=%d on pim enabled interface %s", | |
1008 | __PRETTY_FUNCTION__, MAXVIFS, ifp->name); | |
1009 | return -3; | |
1010 | } | |
1011 | ||
1012 | if (ifp->ifindex == PIM_OIF_PIM_REGISTER_VIF) | |
1013 | flags = VIFF_REGISTER; | |
b3f2bf7c | 1014 | #ifdef VIFF_USE_IFINDEX |
d62a17ae | 1015 | else |
1016 | flags = VIFF_USE_IFINDEX; | |
b3f2bf7c RW |
1017 | #endif |
1018 | ||
d62a17ae | 1019 | if (pim_mroute_add_vif(ifp, ifaddr, flags)) { |
1020 | /* pim_mroute_add_vif reported error */ | |
1021 | return -5; | |
1022 | } | |
12e41d03 | 1023 | |
f88df3a6 | 1024 | pim_ifp->pim->iface_vif_index[pim_ifp->mroute_vif_index] = 1; |
d62a17ae | 1025 | return 0; |
12e41d03 DL |
1026 | } |
1027 | ||
12e41d03 DL |
1028 | int pim_if_del_vif(struct interface *ifp) |
1029 | { | |
d62a17ae | 1030 | struct pim_interface *pim_ifp = ifp->info; |
12e41d03 | 1031 | |
d62a17ae | 1032 | if (pim_ifp->mroute_vif_index < 1) { |
1033 | zlog_warn("%s: vif_index=%d < 1 on interface %s ifindex=%d", | |
1034 | __PRETTY_FUNCTION__, pim_ifp->mroute_vif_index, | |
1035 | ifp->name, ifp->ifindex); | |
1036 | return -1; | |
1037 | } | |
12e41d03 | 1038 | |
ea3d967b | 1039 | pim_mroute_del_vif(ifp); |
12e41d03 | 1040 | |
d62a17ae | 1041 | /* |
1042 | Update vif_index | |
1043 | */ | |
f88df3a6 | 1044 | pim_ifp->pim->iface_vif_index[pim_ifp->mroute_vif_index] = 0; |
12e41d03 | 1045 | |
d62a17ae | 1046 | pim_ifp->mroute_vif_index = -1; |
12e41d03 | 1047 | |
d62a17ae | 1048 | return 0; |
12e41d03 DL |
1049 | } |
1050 | ||
da82728d | 1051 | // DBS - VRF Revist |
7cfc7bcf DS |
1052 | struct interface *pim_if_find_by_vif_index(struct pim_instance *pim, |
1053 | ifindex_t vif_index) | |
12e41d03 | 1054 | { |
d62a17ae | 1055 | struct interface *ifp; |
12e41d03 | 1056 | |
451fda4f | 1057 | FOR_ALL_INTERFACES (pim->vrf, ifp) { |
7cfc7bcf DS |
1058 | if (ifp->info) { |
1059 | struct pim_interface *pim_ifp; | |
1060 | pim_ifp = ifp->info; | |
b892f1dd | 1061 | |
7cfc7bcf DS |
1062 | if (vif_index == pim_ifp->mroute_vif_index) |
1063 | return ifp; | |
d62a17ae | 1064 | } |
1065 | } | |
12e41d03 | 1066 | |
d62a17ae | 1067 | return 0; |
12e41d03 DL |
1068 | } |
1069 | ||
1070 | /* | |
1071 | pim_if_add_vif() uses ifindex as vif_index | |
1072 | */ | |
7cfc7bcf | 1073 | int pim_if_find_vifindex_by_ifindex(struct pim_instance *pim, ifindex_t ifindex) |
12e41d03 | 1074 | { |
d62a17ae | 1075 | struct pim_interface *pim_ifp; |
1076 | struct interface *ifp; | |
ae90dfbb | 1077 | |
7cfc7bcf | 1078 | ifp = if_lookup_by_index(ifindex, pim->vrf_id); |
d62a17ae | 1079 | if (!ifp || !ifp->info) |
1080 | return -1; | |
1081 | pim_ifp = ifp->info; | |
ae90dfbb | 1082 | |
d62a17ae | 1083 | return pim_ifp->mroute_vif_index; |
12e41d03 DL |
1084 | } |
1085 | ||
1086 | int pim_if_lan_delay_enabled(struct interface *ifp) | |
1087 | { | |
d62a17ae | 1088 | struct pim_interface *pim_ifp; |
12e41d03 | 1089 | |
d62a17ae | 1090 | pim_ifp = ifp->info; |
1091 | zassert(pim_ifp); | |
1092 | zassert(pim_ifp->pim_number_of_nonlandelay_neighbors >= 0); | |
12e41d03 | 1093 | |
d62a17ae | 1094 | return pim_ifp->pim_number_of_nonlandelay_neighbors == 0; |
12e41d03 DL |
1095 | } |
1096 | ||
1097 | uint16_t pim_if_effective_propagation_delay_msec(struct interface *ifp) | |
1098 | { | |
d62a17ae | 1099 | if (pim_if_lan_delay_enabled(ifp)) { |
1100 | struct pim_interface *pim_ifp; | |
1101 | pim_ifp = ifp->info; | |
1102 | return pim_ifp->pim_neighbors_highest_propagation_delay_msec; | |
1103 | } else { | |
1104 | return PIM_DEFAULT_PROPAGATION_DELAY_MSEC; | |
1105 | } | |
12e41d03 DL |
1106 | } |
1107 | ||
1108 | uint16_t pim_if_effective_override_interval_msec(struct interface *ifp) | |
1109 | { | |
d62a17ae | 1110 | if (pim_if_lan_delay_enabled(ifp)) { |
1111 | struct pim_interface *pim_ifp; | |
1112 | pim_ifp = ifp->info; | |
1113 | return pim_ifp->pim_neighbors_highest_override_interval_msec; | |
1114 | } else { | |
1115 | return PIM_DEFAULT_OVERRIDE_INTERVAL_MSEC; | |
1116 | } | |
12e41d03 DL |
1117 | } |
1118 | ||
1119 | int pim_if_t_override_msec(struct interface *ifp) | |
1120 | { | |
d62a17ae | 1121 | int effective_override_interval_msec; |
1122 | int t_override_msec; | |
12e41d03 | 1123 | |
d62a17ae | 1124 | effective_override_interval_msec = |
1125 | pim_if_effective_override_interval_msec(ifp); | |
12e41d03 | 1126 | |
d62a17ae | 1127 | t_override_msec = random() % (effective_override_interval_msec + 1); |
12e41d03 | 1128 | |
d62a17ae | 1129 | return t_override_msec; |
12e41d03 DL |
1130 | } |
1131 | ||
1132 | uint16_t pim_if_jp_override_interval_msec(struct interface *ifp) | |
1133 | { | |
d62a17ae | 1134 | return pim_if_effective_propagation_delay_msec(ifp) |
1135 | + pim_if_effective_override_interval_msec(ifp); | |
12e41d03 DL |
1136 | } |
1137 | ||
1138 | /* | |
1139 | RFC 4601: 4.1.6. State Summarization Macros | |
1140 | ||
1141 | The function NBR( I, A ) uses information gathered through PIM Hello | |
1142 | messages to map the IP address A of a directly connected PIM | |
1143 | neighbor router on interface I to the primary IP address of the same | |
1144 | router (Section 4.3.4). The primary IP address of a neighbor is the | |
1145 | address that it uses as the source of its PIM Hello messages. | |
1146 | */ | |
1147 | struct pim_neighbor *pim_if_find_neighbor(struct interface *ifp, | |
1148 | struct in_addr addr) | |
1149 | { | |
d62a17ae | 1150 | struct listnode *neighnode; |
1151 | struct pim_neighbor *neigh; | |
1152 | struct pim_interface *pim_ifp; | |
1153 | struct prefix p; | |
1154 | ||
1155 | zassert(ifp); | |
1156 | ||
1157 | pim_ifp = ifp->info; | |
1158 | if (!pim_ifp) { | |
1159 | zlog_warn("%s: multicast not enabled on interface %s", | |
1160 | __PRETTY_FUNCTION__, ifp->name); | |
1161 | return 0; | |
1162 | } | |
1163 | ||
1164 | p.family = AF_INET; | |
1165 | p.u.prefix4 = addr; | |
1166 | p.prefixlen = IPV4_MAX_PREFIXLEN; | |
1167 | ||
1168 | for (ALL_LIST_ELEMENTS_RO(pim_ifp->pim_neighbor_list, neighnode, | |
1169 | neigh)) { | |
1170 | ||
1171 | /* primary address ? */ | |
1172 | if (neigh->source_addr.s_addr == addr.s_addr) | |
1173 | return neigh; | |
1174 | ||
1175 | /* secondary address ? */ | |
1176 | if (pim_neighbor_find_secondary(neigh, &p)) | |
1177 | return neigh; | |
1178 | } | |
1179 | ||
1180 | if (PIM_DEBUG_PIM_TRACE) { | |
1181 | char addr_str[INET_ADDRSTRLEN]; | |
1182 | pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str)); | |
1183 | zlog_debug( | |
1184 | "%s: neighbor not found for address %s on interface %s", | |
1185 | __PRETTY_FUNCTION__, addr_str, ifp->name); | |
1186 | } | |
1187 | ||
1188 | return NULL; | |
12e41d03 DL |
1189 | } |
1190 | ||
1191 | long pim_if_t_suppressed_msec(struct interface *ifp) | |
1192 | { | |
d62a17ae | 1193 | struct pim_interface *pim_ifp; |
1194 | long t_suppressed_msec; | |
1195 | uint32_t ramount = 0; | |
12e41d03 | 1196 | |
d62a17ae | 1197 | pim_ifp = ifp->info; |
1198 | zassert(pim_ifp); | |
12e41d03 | 1199 | |
d62a17ae | 1200 | /* join suppression disabled ? */ |
1201 | if (PIM_IF_TEST_PIM_CAN_DISABLE_JOIN_SUPRESSION(pim_ifp->options)) | |
1202 | return 0; | |
12e41d03 | 1203 | |
d62a17ae | 1204 | /* t_suppressed = t_periodic * rand(1.1, 1.4) */ |
1205 | ramount = 1100 + (random() % (1400 - 1100 + 1)); | |
1206 | t_suppressed_msec = qpim_t_periodic * ramount; | |
12e41d03 | 1207 | |
d62a17ae | 1208 | return t_suppressed_msec; |
12e41d03 DL |
1209 | } |
1210 | ||
1211 | static void igmp_join_free(struct igmp_join *ij) | |
1212 | { | |
d62a17ae | 1213 | XFREE(MTYPE_PIM_IGMP_JOIN, ij); |
12e41d03 DL |
1214 | } |
1215 | ||
1216 | static struct igmp_join *igmp_join_find(struct list *join_list, | |
1217 | struct in_addr group_addr, | |
1218 | struct in_addr source_addr) | |
1219 | { | |
d62a17ae | 1220 | struct listnode *node; |
1221 | struct igmp_join *ij; | |
12e41d03 | 1222 | |
d62a17ae | 1223 | zassert(join_list); |
12e41d03 | 1224 | |
d62a17ae | 1225 | for (ALL_LIST_ELEMENTS_RO(join_list, node, ij)) { |
1226 | if ((group_addr.s_addr == ij->group_addr.s_addr) | |
1227 | && (source_addr.s_addr == ij->source_addr.s_addr)) | |
1228 | return ij; | |
1229 | } | |
12e41d03 | 1230 | |
d62a17ae | 1231 | return 0; |
12e41d03 DL |
1232 | } |
1233 | ||
d62a17ae | 1234 | static int igmp_join_sock(const char *ifname, ifindex_t ifindex, |
1235 | struct in_addr group_addr, struct in_addr source_addr) | |
12e41d03 | 1236 | { |
d62a17ae | 1237 | int join_fd; |
12e41d03 | 1238 | |
d62a17ae | 1239 | join_fd = pim_socket_raw(IPPROTO_IGMP); |
1240 | if (join_fd < 0) { | |
1241 | return -1; | |
1242 | } | |
12e41d03 | 1243 | |
d62a17ae | 1244 | if (pim_socket_join_source(join_fd, ifindex, group_addr, source_addr, |
1245 | ifname)) { | |
1246 | close(join_fd); | |
1247 | return -2; | |
1248 | } | |
12e41d03 | 1249 | |
d62a17ae | 1250 | return join_fd; |
12e41d03 DL |
1251 | } |
1252 | ||
1253 | static struct igmp_join *igmp_join_new(struct interface *ifp, | |
1254 | struct in_addr group_addr, | |
1255 | struct in_addr source_addr) | |
1256 | { | |
d62a17ae | 1257 | struct pim_interface *pim_ifp; |
1258 | struct igmp_join *ij; | |
1259 | int join_fd; | |
1260 | ||
1261 | pim_ifp = ifp->info; | |
1262 | zassert(pim_ifp); | |
1263 | ||
1264 | join_fd = igmp_join_sock(ifp->name, ifp->ifindex, group_addr, | |
1265 | source_addr); | |
1266 | if (join_fd < 0) { | |
1267 | char group_str[INET_ADDRSTRLEN]; | |
1268 | char source_str[INET_ADDRSTRLEN]; | |
1269 | pim_inet4_dump("<grp?>", group_addr, group_str, | |
1270 | sizeof(group_str)); | |
1271 | pim_inet4_dump("<src?>", source_addr, source_str, | |
1272 | sizeof(source_str)); | |
1273 | zlog_warn( | |
1274 | "%s: igmp_join_sock() failure for IGMP group %s source %s on interface %s", | |
1275 | __PRETTY_FUNCTION__, group_str, source_str, ifp->name); | |
1276 | return 0; | |
1277 | } | |
1278 | ||
1279 | ij = XCALLOC(MTYPE_PIM_IGMP_JOIN, sizeof(*ij)); | |
1280 | if (!ij) { | |
1281 | char group_str[INET_ADDRSTRLEN]; | |
1282 | char source_str[INET_ADDRSTRLEN]; | |
1283 | pim_inet4_dump("<grp?>", group_addr, group_str, | |
1284 | sizeof(group_str)); | |
1285 | pim_inet4_dump("<src?>", source_addr, source_str, | |
1286 | sizeof(source_str)); | |
1287 | zlog_err( | |
1288 | "%s: XCALLOC(%zu) failure for IGMP group %s source %s on interface %s", | |
1289 | __PRETTY_FUNCTION__, sizeof(*ij), group_str, source_str, | |
1290 | ifp->name); | |
1291 | close(join_fd); | |
1292 | return 0; | |
1293 | } | |
1294 | ||
1295 | ij->sock_fd = join_fd; | |
1296 | ij->group_addr = group_addr; | |
1297 | ij->source_addr = source_addr; | |
1298 | ij->sock_creation = pim_time_monotonic_sec(); | |
1299 | ||
1300 | listnode_add(pim_ifp->igmp_join_list, ij); | |
1301 | ||
1302 | return ij; | |
12e41d03 DL |
1303 | } |
1304 | ||
37664928 | 1305 | ferr_r pim_if_igmp_join_add(struct interface *ifp, struct in_addr group_addr, |
996c9314 | 1306 | struct in_addr source_addr) |
12e41d03 | 1307 | { |
d62a17ae | 1308 | struct pim_interface *pim_ifp; |
1309 | struct igmp_join *ij; | |
1310 | ||
1311 | pim_ifp = ifp->info; | |
1312 | if (!pim_ifp) { | |
37664928 DS |
1313 | return ferr_cfg_invalid("multicast not enabled on interface %s", |
1314 | ifp->name); | |
d62a17ae | 1315 | } |
1316 | ||
1317 | if (!pim_ifp->igmp_join_list) { | |
1318 | pim_ifp->igmp_join_list = list_new(); | |
1319 | if (!pim_ifp->igmp_join_list) { | |
37664928 | 1320 | return ferr_cfg_invalid("Insufficient memory"); |
d62a17ae | 1321 | } |
1322 | pim_ifp->igmp_join_list->del = (void (*)(void *))igmp_join_free; | |
1323 | } | |
1324 | ||
1325 | ij = igmp_join_find(pim_ifp->igmp_join_list, group_addr, source_addr); | |
53d829f5 DW |
1326 | |
1327 | /* This interface has already been configured to join this IGMP group | |
1328 | */ | |
d62a17ae | 1329 | if (ij) { |
53d829f5 | 1330 | return ferr_ok(); |
d62a17ae | 1331 | } |
1332 | ||
1333 | ij = igmp_join_new(ifp, group_addr, source_addr); | |
1334 | if (!ij) { | |
37664928 DS |
1335 | return ferr_cfg_invalid( |
1336 | "Failure to create new join data structure, see log file for more information"); | |
d62a17ae | 1337 | } |
1338 | ||
1339 | if (PIM_DEBUG_IGMP_EVENTS) { | |
1340 | char group_str[INET_ADDRSTRLEN]; | |
1341 | char source_str[INET_ADDRSTRLEN]; | |
1342 | pim_inet4_dump("<grp?>", group_addr, group_str, | |
1343 | sizeof(group_str)); | |
1344 | pim_inet4_dump("<src?>", source_addr, source_str, | |
1345 | sizeof(source_str)); | |
1346 | zlog_debug( | |
1347 | "%s: issued static igmp join for channel (S,G)=(%s,%s) on interface %s", | |
1348 | __PRETTY_FUNCTION__, source_str, group_str, ifp->name); | |
1349 | } | |
12e41d03 | 1350 | |
37664928 | 1351 | return ferr_ok(); |
d62a17ae | 1352 | } |
12e41d03 DL |
1353 | |
1354 | ||
d62a17ae | 1355 | int pim_if_igmp_join_del(struct interface *ifp, struct in_addr group_addr, |
12e41d03 DL |
1356 | struct in_addr source_addr) |
1357 | { | |
d62a17ae | 1358 | struct pim_interface *pim_ifp; |
1359 | struct igmp_join *ij; | |
1360 | ||
1361 | pim_ifp = ifp->info; | |
1362 | if (!pim_ifp) { | |
1363 | zlog_warn("%s: multicast not enabled on interface %s", | |
1364 | __PRETTY_FUNCTION__, ifp->name); | |
1365 | return -1; | |
1366 | } | |
1367 | ||
1368 | if (!pim_ifp->igmp_join_list) { | |
1369 | zlog_warn("%s: no IGMP join on interface %s", | |
1370 | __PRETTY_FUNCTION__, ifp->name); | |
1371 | return -2; | |
1372 | } | |
1373 | ||
1374 | ij = igmp_join_find(pim_ifp->igmp_join_list, group_addr, source_addr); | |
1375 | if (!ij) { | |
1376 | char group_str[INET_ADDRSTRLEN]; | |
1377 | char source_str[INET_ADDRSTRLEN]; | |
1378 | pim_inet4_dump("<grp?>", group_addr, group_str, | |
1379 | sizeof(group_str)); | |
1380 | pim_inet4_dump("<src?>", source_addr, source_str, | |
1381 | sizeof(source_str)); | |
1382 | zlog_warn( | |
1383 | "%s: could not find IGMP group %s source %s on interface %s", | |
1384 | __PRETTY_FUNCTION__, group_str, source_str, ifp->name); | |
1385 | return -3; | |
1386 | } | |
1387 | ||
1388 | if (close(ij->sock_fd)) { | |
1389 | char group_str[INET_ADDRSTRLEN]; | |
1390 | char source_str[INET_ADDRSTRLEN]; | |
1391 | pim_inet4_dump("<grp?>", group_addr, group_str, | |
1392 | sizeof(group_str)); | |
1393 | pim_inet4_dump("<src?>", source_addr, source_str, | |
1394 | sizeof(source_str)); | |
1395 | zlog_warn( | |
1396 | "%s: failure closing sock_fd=%d for IGMP group %s source %s on interface %s: errno=%d: %s", | |
1397 | __PRETTY_FUNCTION__, ij->sock_fd, group_str, source_str, | |
1398 | ifp->name, errno, safe_strerror(errno)); | |
1399 | /* warning only */ | |
1400 | } | |
1401 | listnode_delete(pim_ifp->igmp_join_list, ij); | |
1402 | igmp_join_free(ij); | |
1403 | if (listcount(pim_ifp->igmp_join_list) < 1) { | |
affe9e99 | 1404 | list_delete_and_null(&pim_ifp->igmp_join_list); |
d62a17ae | 1405 | pim_ifp->igmp_join_list = 0; |
1406 | } | |
1407 | ||
1408 | return 0; | |
12e41d03 DL |
1409 | } |
1410 | ||
1411 | static void pim_if_igmp_join_del_all(struct interface *ifp) | |
1412 | { | |
d62a17ae | 1413 | struct pim_interface *pim_ifp; |
1414 | struct listnode *node; | |
1415 | struct listnode *nextnode; | |
1416 | struct igmp_join *ij; | |
1417 | ||
1418 | pim_ifp = ifp->info; | |
1419 | if (!pim_ifp) { | |
1420 | zlog_warn("%s: multicast not enabled on interface %s", | |
1421 | __PRETTY_FUNCTION__, ifp->name); | |
1422 | return; | |
1423 | } | |
1424 | ||
1425 | if (!pim_ifp->igmp_join_list) | |
1426 | return; | |
1427 | ||
1428 | for (ALL_LIST_ELEMENTS(pim_ifp->igmp_join_list, node, nextnode, ij)) | |
1429 | pim_if_igmp_join_del(ifp, ij->group_addr, ij->source_addr); | |
12e41d03 DL |
1430 | } |
1431 | ||
1432 | /* | |
1433 | RFC 4601 | |
1434 | ||
1435 | Transitions from "I am Assert Loser" State | |
1436 | ||
1437 | Current Winner's GenID Changes or NLT Expires | |
1438 | ||
1439 | The Neighbor Liveness Timer associated with the current winner | |
1440 | expires or we receive a Hello message from the current winner | |
1441 | reporting a different GenID from the one it previously reported. | |
1442 | This indicates that the current winner's interface or router has | |
1443 | gone down (and may have come back up), and so we must assume it no | |
1444 | longer knows it was the winner. | |
1445 | */ | |
1446 | void pim_if_assert_on_neighbor_down(struct interface *ifp, | |
1447 | struct in_addr neigh_addr) | |
1448 | { | |
d62a17ae | 1449 | struct pim_interface *pim_ifp; |
d62a17ae | 1450 | struct pim_ifchannel *ch; |
1451 | ||
1452 | pim_ifp = ifp->info; | |
1453 | zassert(pim_ifp); | |
1454 | ||
a2addae8 | 1455 | RB_FOREACH (ch, pim_ifchannel_rb, &pim_ifp->ifchannel_rb) { |
d62a17ae | 1456 | /* Is (S,G,I) assert loser ? */ |
1457 | if (ch->ifassert_state != PIM_IFASSERT_I_AM_LOSER) | |
1458 | continue; | |
1459 | /* Dead neighbor was winner ? */ | |
1460 | if (ch->ifassert_winner.s_addr != neigh_addr.s_addr) | |
1461 | continue; | |
1462 | ||
1463 | assert_action_a5(ch); | |
1464 | } | |
12e41d03 DL |
1465 | } |
1466 | ||
1467 | void pim_if_update_join_desired(struct pim_interface *pim_ifp) | |
1468 | { | |
d62a17ae | 1469 | struct pim_ifchannel *ch; |
12e41d03 | 1470 | |
d62a17ae | 1471 | /* clear off flag from interface's upstreams */ |
a2addae8 | 1472 | RB_FOREACH (ch, pim_ifchannel_rb, &pim_ifp->ifchannel_rb) { |
d62a17ae | 1473 | PIM_UPSTREAM_FLAG_UNSET_DR_JOIN_DESIRED_UPDATED( |
1474 | ch->upstream->flags); | |
1475 | } | |
12e41d03 | 1476 | |
d62a17ae | 1477 | /* scan per-interface (S,G,I) state on this I interface */ |
a2addae8 | 1478 | RB_FOREACH (ch, pim_ifchannel_rb, &pim_ifp->ifchannel_rb) { |
d62a17ae | 1479 | struct pim_upstream *up = ch->upstream; |
12e41d03 | 1480 | |
d62a17ae | 1481 | if (PIM_UPSTREAM_FLAG_TEST_DR_JOIN_DESIRED_UPDATED(up->flags)) |
1482 | continue; | |
12e41d03 | 1483 | |
d62a17ae | 1484 | /* update join_desired for the global (S,G) state */ |
9b29ea95 | 1485 | pim_upstream_update_join_desired(pim_ifp->pim, up); |
d62a17ae | 1486 | PIM_UPSTREAM_FLAG_SET_DR_JOIN_DESIRED_UPDATED(up->flags); |
1487 | } | |
12e41d03 DL |
1488 | } |
1489 | ||
1490 | void pim_if_update_assert_tracking_desired(struct interface *ifp) | |
1491 | { | |
d62a17ae | 1492 | struct pim_interface *pim_ifp; |
d62a17ae | 1493 | struct pim_ifchannel *ch; |
1494 | ||
1495 | pim_ifp = ifp->info; | |
1496 | if (!pim_ifp) | |
1497 | return; | |
1498 | ||
a2addae8 | 1499 | RB_FOREACH (ch, pim_ifchannel_rb, &pim_ifp->ifchannel_rb) { |
d62a17ae | 1500 | pim_ifchannel_update_assert_tracking_desired(ch); |
1501 | } | |
12e41d03 | 1502 | } |
c992c9a0 DS |
1503 | |
1504 | /* | |
1505 | * PIM wants to have an interface pointer for everything it does. | |
1506 | * The pimreg is a special interface that we have that is not | |
1507 | * quite an inteface but a VIF is created for it. | |
1508 | */ | |
43e40fdf | 1509 | void pim_if_create_pimreg(struct pim_instance *pim) |
c992c9a0 | 1510 | { |
bcc24579 | 1511 | char pimreg_name[INTERFACE_NAMSIZ]; |
c992c9a0 | 1512 | |
43e40fdf | 1513 | if (!pim->regiface) { |
afa2b179 | 1514 | if (pim->vrf_id == VRF_DEFAULT) |
bcc24579 | 1515 | strlcpy(pimreg_name, "pimreg", sizeof(pimreg_name)); |
afa2b179 | 1516 | else |
bcc24579 RW |
1517 | snprintf(pimreg_name, sizeof(pimreg_name), "pimreg%u", |
1518 | pim->vrf->data.l.table_id); | |
afa2b179 | 1519 | |
bcc24579 | 1520 | pim->regiface = if_create(pimreg_name, pim->vrf_id); |
43e40fdf DS |
1521 | pim->regiface->ifindex = PIM_OIF_PIM_REGISTER_VIF; |
1522 | ||
1523 | pim_if_new(pim->regiface, 0, 0); | |
d62a17ae | 1524 | } |
c992c9a0 | 1525 | } |
3565202d | 1526 | |
d62a17ae | 1527 | int pim_if_connected_to_source(struct interface *ifp, struct in_addr src) |
3565202d | 1528 | { |
d62a17ae | 1529 | struct listnode *cnode; |
1530 | struct connected *c; | |
1531 | struct prefix p; | |
1532 | ||
1533 | if (!ifp) | |
1534 | return 0; | |
1535 | ||
1536 | p.family = AF_INET; | |
1537 | p.u.prefix4 = src; | |
1538 | p.prefixlen = IPV4_MAX_BITLEN; | |
1539 | ||
1540 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, c)) { | |
1541 | if ((c->address->family == AF_INET) | |
1542 | && prefix_match(CONNECTED_PREFIX(c), &p)) { | |
1543 | return 1; | |
1544 | } | |
1545 | } | |
1546 | ||
1547 | return 0; | |
3565202d | 1548 | } |
11699c47 | 1549 | |
7f432a28 | 1550 | bool pim_if_is_loopback(struct interface *ifp) |
11699c47 | 1551 | { |
7f432a28 DS |
1552 | if (if_is_loopback(ifp) || if_is_vrf(ifp)) |
1553 | return true; | |
11699c47 | 1554 | |
7f432a28 | 1555 | return false; |
11699c47 | 1556 | } |
90133de6 | 1557 | |
e55a43d4 | 1558 | bool pim_if_is_vrf_device(struct interface *ifp) |
90133de6 | 1559 | { |
e55a43d4 DS |
1560 | if (if_is_vrf(ifp)) |
1561 | return true; | |
90133de6 | 1562 | |
e55a43d4 | 1563 | return false; |
90133de6 | 1564 | } |
ad7b74c4 DS |
1565 | |
1566 | int pim_if_ifchannel_count(struct pim_interface *pim_ifp) | |
1567 | { | |
1568 | struct pim_ifchannel *ch; | |
1569 | int count = 0; | |
1570 | ||
a2addae8 | 1571 | RB_FOREACH (ch, pim_ifchannel_rb, &pim_ifp->ifchannel_rb) { |
ad7b74c4 DS |
1572 | count++; |
1573 | } | |
1574 | ||
1575 | return count; | |
1576 | } |