]>
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" |
c936e76f | 49 | #include "pim_igmp_join.h" |
269c1fe1 | 50 | #include "pim_vxlan.h" |
12e41d03 DL |
51 | |
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, |
d62a17ae | 54 | struct in_addr group_addr, |
55 | struct in_addr source_addr); | |
12e41d03 | 56 | |
f88df3a6 | 57 | void pim_if_init(struct pim_instance *pim) |
ea4a71fc | 58 | { |
d62a17ae | 59 | int i; |
dc0665f1 | 60 | |
d62a17ae | 61 | for (i = 0; i < MAXVIFS; i++) |
f88df3a6 | 62 | pim->iface_vif_index[i] = 0; |
ea4a71fc DS |
63 | } |
64 | ||
f88df3a6 | 65 | void pim_if_terminate(struct pim_instance *pim) |
ea4a71fc | 66 | { |
39949580 DS |
67 | struct interface *ifp; |
68 | ||
69 | FOR_ALL_INTERFACES (pim->vrf, ifp) { | |
70 | struct pim_interface *pim_ifp = ifp->info; | |
71 | ||
72 | if (!pim_ifp) | |
73 | continue; | |
74 | ||
75 | pim_if_delete(ifp); | |
76 | } | |
1a8a3da8 | 77 | return; |
ea4a71fc DS |
78 | } |
79 | ||
f09eaf1c DS |
80 | static void pim_sec_addr_free(struct pim_secondary_addr *sec_addr) |
81 | { | |
82 | XFREE(MTYPE_PIM_SEC_ADDR, sec_addr); | |
83 | } | |
84 | ||
85 | static int pim_sec_addr_comp(const void *p1, const void *p2) | |
86 | { | |
87 | const struct pim_secondary_addr *sec1 = p1; | |
88 | const struct pim_secondary_addr *sec2 = p2; | |
89 | ||
90 | if (sec1->addr.family == AF_INET && sec2->addr.family == AF_INET6) | |
91 | return -1; | |
92 | ||
93 | if (sec1->addr.family == AF_INET6 && sec2->addr.family == AF_INET) | |
94 | return 1; | |
95 | ||
96 | if (sec1->addr.family == AF_INET) { | |
97 | if (ntohl(sec1->addr.u.prefix4.s_addr) | |
98 | < ntohl(sec2->addr.u.prefix4.s_addr)) | |
99 | return -1; | |
100 | ||
101 | if (ntohl(sec1->addr.u.prefix4.s_addr) | |
102 | > ntohl(sec2->addr.u.prefix4.s_addr)) | |
103 | return 1; | |
104 | } else { | |
105 | return memcmp(&sec1->addr.u.prefix6, &sec2->addr.u.prefix6, | |
106 | sizeof(struct in6_addr)); | |
107 | } | |
108 | ||
109 | return 0; | |
110 | } | |
111 | ||
85a13586 | 112 | struct pim_interface *pim_if_new(struct interface *ifp, bool igmp, bool pim, |
b1891fa0 | 113 | bool ispimreg, bool is_vxlan_term) |
12e41d03 | 114 | { |
d62a17ae | 115 | struct pim_interface *pim_ifp; |
116 | ||
117 | zassert(ifp); | |
118 | zassert(!ifp->info); | |
119 | ||
120 | pim_ifp = XCALLOC(MTYPE_PIM_INTERFACE, sizeof(*pim_ifp)); | |
d62a17ae | 121 | |
122 | pim_ifp->options = 0; | |
18d8291f | 123 | pim_ifp->pim = pim_get_pim_instance(ifp->vrf_id); |
d62a17ae | 124 | pim_ifp->mroute_vif_index = -1; |
125 | ||
126 | pim_ifp->igmp_version = IGMP_DEFAULT_VERSION; | |
127 | pim_ifp->igmp_default_robustness_variable = | |
128 | IGMP_DEFAULT_ROBUSTNESS_VARIABLE; | |
129 | pim_ifp->igmp_default_query_interval = IGMP_GENERAL_QUERY_INTERVAL; | |
130 | pim_ifp->igmp_query_max_response_time_dsec = | |
131 | IGMP_QUERY_MAX_RESPONSE_TIME_DSEC; | |
132 | pim_ifp->igmp_specific_query_max_response_time_dsec = | |
133 | IGMP_SPECIFIC_QUERY_MAX_RESPONSE_TIME_DSEC; | |
59115451 SP |
134 | pim_ifp->igmp_last_member_query_count = |
135 | IGMP_DEFAULT_ROBUSTNESS_VARIABLE; | |
d62a17ae | 136 | |
2951a7a4 | 137 | /* BSM config on interface: true by default */ |
19de48b9 | 138 | pim_ifp->bsm_enable = true; |
139 | pim_ifp->ucast_bsm_accept = true; | |
140 | ||
d62a17ae | 141 | /* |
142 | RFC 3376: 8.3. Query Response Interval | |
143 | The number of seconds represented by the [Query Response Interval] | |
144 | must be less than the [Query Interval]. | |
145 | */ | |
146 | zassert(pim_ifp->igmp_query_max_response_time_dsec | |
147 | < pim_ifp->igmp_default_query_interval); | |
148 | ||
149 | if (pim) | |
150 | PIM_IF_DO_PIM(pim_ifp->options); | |
151 | if (igmp) | |
152 | PIM_IF_DO_IGMP(pim_ifp->options); | |
153 | ||
154 | PIM_IF_DO_IGMP_LISTEN_ALLROUTERS(pim_ifp->options); | |
155 | ||
156 | pim_ifp->igmp_join_list = NULL; | |
157 | pim_ifp->igmp_socket_list = NULL; | |
158 | pim_ifp->pim_neighbor_list = NULL; | |
159 | pim_ifp->upstream_switch_list = NULL; | |
d62a17ae | 160 | pim_ifp->pim_generation_id = 0; |
161 | ||
162 | /* list of struct igmp_sock */ | |
163 | pim_ifp->igmp_socket_list = list_new(); | |
d62a17ae | 164 | pim_ifp->igmp_socket_list->del = (void (*)(void *))igmp_sock_free; |
165 | ||
166 | /* list of struct pim_neighbor */ | |
167 | pim_ifp->pim_neighbor_list = list_new(); | |
d62a17ae | 168 | pim_ifp->pim_neighbor_list->del = (void (*)(void *))pim_neighbor_free; |
169 | ||
170 | pim_ifp->upstream_switch_list = list_new(); | |
69ccd63e DS |
171 | pim_ifp->upstream_switch_list->del = |
172 | (void (*)(void *))pim_jp_agg_group_list_free; | |
173 | pim_ifp->upstream_switch_list->cmp = pim_jp_agg_group_list_cmp; | |
d62a17ae | 174 | |
f09eaf1c | 175 | pim_ifp->sec_addr_list = list_new(); |
f09eaf1c DS |
176 | pim_ifp->sec_addr_list->del = (void (*)(void *))pim_sec_addr_free; |
177 | pim_ifp->sec_addr_list->cmp = | |
178 | (int (*)(void *, void *))pim_sec_addr_comp; | |
179 | ||
414d885a DS |
180 | pim_ifp->activeactive = false; |
181 | ||
ad7b74c4 | 182 | RB_INIT(pim_ifchannel_rb, &pim_ifp->ifchannel_rb); |
d62a17ae | 183 | |
184 | ifp->info = pim_ifp; | |
185 | ||
186 | pim_sock_reset(ifp); | |
187 | ||
b1891fa0 | 188 | pim_if_add_vif(ifp, ispimreg, is_vxlan_term); |
d62a17ae | 189 | |
190 | return pim_ifp; | |
12e41d03 DL |
191 | } |
192 | ||
193 | void pim_if_delete(struct interface *ifp) | |
194 | { | |
d62a17ae | 195 | struct pim_interface *pim_ifp; |
ad7b74c4 | 196 | struct pim_ifchannel *ch; |
12e41d03 | 197 | |
d62a17ae | 198 | zassert(ifp); |
199 | pim_ifp = ifp->info; | |
200 | zassert(pim_ifp); | |
12e41d03 | 201 | |
d62a17ae | 202 | if (pim_ifp->igmp_join_list) { |
203 | pim_if_igmp_join_del_all(ifp); | |
204 | } | |
12e41d03 | 205 | |
d62a17ae | 206 | pim_ifchannel_delete_all(ifp); |
207 | igmp_sock_delete_all(ifp); | |
12e41d03 | 208 | |
d62a17ae | 209 | pim_neighbor_delete_all(ifp, "Interface removed from configuration"); |
12e41d03 | 210 | |
d62a17ae | 211 | pim_if_del_vif(ifp); |
12e41d03 | 212 | |
6a154c88 DL |
213 | list_delete(&pim_ifp->igmp_socket_list); |
214 | list_delete(&pim_ifp->pim_neighbor_list); | |
215 | list_delete(&pim_ifp->upstream_switch_list); | |
216 | list_delete(&pim_ifp->sec_addr_list); | |
12e41d03 | 217 | |
0a22ddfb | 218 | XFREE(MTYPE_PIM_INTERFACE, pim_ifp->boundary_oil_plist); |
b0f525a8 | 219 | |
55cd0f61 DS |
220 | while (!RB_EMPTY(pim_ifchannel_rb, &pim_ifp->ifchannel_rb)) { |
221 | ch = RB_ROOT(pim_ifchannel_rb, &pim_ifp->ifchannel_rb); | |
222 | ||
ad7b74c4 | 223 | pim_ifchannel_delete(ch); |
55cd0f61 | 224 | } |
a625e937 | 225 | |
d62a17ae | 226 | XFREE(MTYPE_PIM_INTERFACE, pim_ifp); |
12e41d03 | 227 | |
d62a17ae | 228 | ifp->info = NULL; |
12e41d03 DL |
229 | } |
230 | ||
231 | void pim_if_update_could_assert(struct interface *ifp) | |
232 | { | |
d62a17ae | 233 | struct pim_interface *pim_ifp; |
d62a17ae | 234 | struct pim_ifchannel *ch; |
12e41d03 | 235 | |
d62a17ae | 236 | pim_ifp = ifp->info; |
237 | zassert(pim_ifp); | |
12e41d03 | 238 | |
a2addae8 | 239 | RB_FOREACH (ch, pim_ifchannel_rb, &pim_ifp->ifchannel_rb) { |
d62a17ae | 240 | pim_ifchannel_update_could_assert(ch); |
241 | } | |
12e41d03 DL |
242 | } |
243 | ||
244 | static void pim_if_update_my_assert_metric(struct interface *ifp) | |
245 | { | |
d62a17ae | 246 | struct pim_interface *pim_ifp; |
d62a17ae | 247 | struct pim_ifchannel *ch; |
12e41d03 | 248 | |
d62a17ae | 249 | pim_ifp = ifp->info; |
250 | zassert(pim_ifp); | |
12e41d03 | 251 | |
a2addae8 | 252 | RB_FOREACH (ch, pim_ifchannel_rb, &pim_ifp->ifchannel_rb) { |
d62a17ae | 253 | pim_ifchannel_update_my_assert_metric(ch); |
254 | } | |
12e41d03 DL |
255 | } |
256 | ||
257 | static void pim_addr_change(struct interface *ifp) | |
258 | { | |
d62a17ae | 259 | struct pim_interface *pim_ifp; |
260 | ||
261 | pim_ifp = ifp->info; | |
262 | zassert(pim_ifp); | |
263 | ||
264 | pim_if_dr_election(ifp); /* router's own DR Priority (addr) changes -- | |
265 | Done TODO T30 */ | |
266 | pim_if_update_join_desired(pim_ifp); /* depends on DR */ | |
267 | pim_if_update_could_assert(ifp); /* depends on DR */ | |
268 | pim_if_update_my_assert_metric(ifp); /* depends on could_assert */ | |
269 | pim_if_update_assert_tracking_desired( | |
270 | ifp); /* depends on DR, join_desired */ | |
271 | ||
272 | /* | |
273 | RFC 4601: 4.3.1. Sending Hello Messages | |
274 | ||
275 | 1) Before an interface goes down or changes primary IP address, a | |
276 | Hello message with a zero HoldTime should be sent immediately | |
277 | (with the old IP address if the IP address changed). | |
278 | -- FIXME See CAVEAT C13 | |
279 | ||
280 | 2) After an interface has changed its IP address, it MUST send a | |
281 | Hello message with its new IP address. | |
282 | -- DONE below | |
283 | ||
284 | 3) If an interface changes one of its secondary IP addresses, a | |
285 | Hello message with an updated Address_List option and a non-zero | |
286 | HoldTime should be sent immediately. | |
287 | -- FIXME See TODO T31 | |
288 | */ | |
289 | pim_ifp->pim_ifstat_hello_sent = 0; /* reset hello counter */ | |
290 | if (pim_ifp->pim_sock_fd < 0) | |
291 | return; | |
292 | pim_hello_restart_now(ifp); /* send hello and restart timer */ | |
12e41d03 DL |
293 | } |
294 | ||
12e41d03 DL |
295 | static int detect_primary_address_change(struct interface *ifp, |
296 | int force_prim_as_any, | |
297 | const char *caller) | |
298 | { | |
d62a17ae | 299 | struct pim_interface *pim_ifp = ifp->info; |
300 | struct in_addr new_prim_addr; | |
301 | int changed; | |
302 | ||
303 | if (force_prim_as_any) | |
304 | new_prim_addr.s_addr = INADDR_ANY; | |
305 | else | |
306 | new_prim_addr = pim_find_primary_addr(ifp); | |
307 | ||
308 | changed = new_prim_addr.s_addr != pim_ifp->primary_address.s_addr; | |
309 | ||
310 | if (PIM_DEBUG_ZEBRA) { | |
311 | char new_prim_str[INET_ADDRSTRLEN]; | |
312 | char old_prim_str[INET_ADDRSTRLEN]; | |
313 | pim_inet4_dump("<new?>", new_prim_addr, new_prim_str, | |
314 | sizeof(new_prim_str)); | |
315 | pim_inet4_dump("<old?>", pim_ifp->primary_address, old_prim_str, | |
316 | sizeof(old_prim_str)); | |
15569c58 DA |
317 | zlog_debug("%s: old=%s new=%s on interface %s: %s", __func__, |
318 | old_prim_str, new_prim_str, ifp->name, | |
319 | changed ? "changed" : "unchanged"); | |
d62a17ae | 320 | } |
321 | ||
322 | if (changed) { | |
323 | pim_ifp->primary_address = new_prim_addr; | |
324 | } | |
325 | ||
326 | return changed; | |
12e41d03 DL |
327 | } |
328 | ||
7176984f | 329 | static struct pim_secondary_addr * |
294b6d72 | 330 | pim_sec_addr_find(struct pim_interface *pim_ifp, struct prefix *addr) |
7176984f | 331 | { |
d62a17ae | 332 | struct pim_secondary_addr *sec_addr; |
333 | struct listnode *node; | |
7176984f | 334 | |
d62a17ae | 335 | for (ALL_LIST_ELEMENTS_RO(pim_ifp->sec_addr_list, node, sec_addr)) { |
336 | if (prefix_cmp(&sec_addr->addr, addr)) { | |
337 | return sec_addr; | |
338 | } | |
339 | } | |
7176984f | 340 | |
d62a17ae | 341 | return NULL; |
7176984f | 342 | } |
343 | ||
344 | static void pim_sec_addr_del(struct pim_interface *pim_ifp, | |
d62a17ae | 345 | struct pim_secondary_addr *sec_addr) |
7176984f | 346 | { |
d62a17ae | 347 | listnode_delete(pim_ifp->sec_addr_list, sec_addr); |
348 | pim_sec_addr_free(sec_addr); | |
7176984f | 349 | } |
350 | ||
294b6d72 | 351 | static int pim_sec_addr_add(struct pim_interface *pim_ifp, struct prefix *addr) |
7176984f | 352 | { |
d62a17ae | 353 | int changed = 0; |
354 | struct pim_secondary_addr *sec_addr; | |
355 | ||
356 | sec_addr = pim_sec_addr_find(pim_ifp, addr); | |
357 | if (sec_addr) { | |
358 | sec_addr->flags &= ~PIM_SEC_ADDRF_STALE; | |
359 | return changed; | |
360 | } | |
361 | ||
d62a17ae | 362 | sec_addr = XCALLOC(MTYPE_PIM_SEC_ADDR, sizeof(*sec_addr)); |
d62a17ae | 363 | |
364 | changed = 1; | |
365 | sec_addr->addr = *addr; | |
366 | listnode_add_sort(pim_ifp->sec_addr_list, sec_addr); | |
367 | ||
368 | return changed; | |
7176984f | 369 | } |
370 | ||
371 | static int pim_sec_addr_del_all(struct pim_interface *pim_ifp) | |
372 | { | |
d62a17ae | 373 | int changed = 0; |
374 | ||
d62a17ae | 375 | if (!list_isempty(pim_ifp->sec_addr_list)) { |
376 | changed = 1; | |
377 | /* remove all nodes and free up the list itself */ | |
378 | list_delete_all_node(pim_ifp->sec_addr_list); | |
d62a17ae | 379 | } |
380 | ||
381 | return changed; | |
7176984f | 382 | } |
383 | ||
384 | static int pim_sec_addr_update(struct interface *ifp) | |
385 | { | |
d62a17ae | 386 | struct pim_interface *pim_ifp = ifp->info; |
387 | struct connected *ifc; | |
388 | struct listnode *node; | |
389 | struct listnode *nextnode; | |
390 | struct pim_secondary_addr *sec_addr; | |
391 | int changed = 0; | |
392 | ||
996c9314 | 393 | for (ALL_LIST_ELEMENTS_RO(pim_ifp->sec_addr_list, node, sec_addr)) { |
f09eaf1c | 394 | sec_addr->flags |= PIM_SEC_ADDRF_STALE; |
d62a17ae | 395 | } |
396 | ||
397 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, ifc)) { | |
398 | struct prefix *p = ifc->address; | |
399 | ||
400 | if (PIM_INADDR_IS_ANY(p->u.prefix4)) { | |
401 | continue; | |
402 | } | |
403 | ||
404 | if (pim_ifp->primary_address.s_addr == p->u.prefix4.s_addr) { | |
405 | /* don't add the primary address into the secondary | |
406 | * address list */ | |
407 | continue; | |
408 | } | |
409 | ||
410 | if (pim_sec_addr_add(pim_ifp, p)) { | |
411 | changed = 1; | |
412 | } | |
413 | } | |
414 | ||
f09eaf1c DS |
415 | /* Drop stale entries */ |
416 | for (ALL_LIST_ELEMENTS(pim_ifp->sec_addr_list, node, nextnode, | |
417 | sec_addr)) { | |
418 | if (sec_addr->flags & PIM_SEC_ADDRF_STALE) { | |
419 | pim_sec_addr_del(pim_ifp, sec_addr); | |
420 | changed = 1; | |
d62a17ae | 421 | } |
422 | } | |
423 | ||
424 | return changed; | |
7176984f | 425 | } |
426 | ||
4763cd0e | 427 | static int detect_secondary_address_change(struct interface *ifp, |
d62a17ae | 428 | int force_prim_as_any, |
429 | const char *caller) | |
12e41d03 | 430 | { |
d62a17ae | 431 | struct pim_interface *pim_ifp = ifp->info; |
432 | int changed = 0; | |
433 | ||
434 | if (force_prim_as_any) { | |
435 | /* if primary address is being forced to zero just flush the | |
436 | * secondary address list */ | |
437 | changed = pim_sec_addr_del_all(pim_ifp); | |
438 | } else { | |
439 | /* re-evaluate the secondary address list */ | |
440 | changed = pim_sec_addr_update(ifp); | |
441 | } | |
442 | ||
443 | return changed; | |
4763cd0e | 444 | } |
445 | ||
d62a17ae | 446 | static void detect_address_change(struct interface *ifp, int force_prim_as_any, |
447 | const char *caller) | |
4763cd0e | 448 | { |
d62a17ae | 449 | int changed = 0; |
450 | struct pim_interface *pim_ifp; | |
12e41d03 | 451 | |
d62a17ae | 452 | pim_ifp = ifp->info; |
453 | if (!pim_ifp) | |
454 | return; | |
4763cd0e | 455 | |
d62a17ae | 456 | if (detect_primary_address_change(ifp, force_prim_as_any, caller)) { |
457 | changed = 1; | |
458 | } | |
12e41d03 | 459 | |
d62a17ae | 460 | if (detect_secondary_address_change(ifp, force_prim_as_any, caller)) { |
461 | changed = 1; | |
462 | } | |
4763cd0e | 463 | |
464 | ||
d62a17ae | 465 | if (changed) { |
466 | if (!PIM_IF_TEST_PIM(pim_ifp->options)) { | |
467 | return; | |
468 | } | |
4763cd0e | 469 | |
d62a17ae | 470 | pim_addr_change(ifp); |
471 | } | |
12e41d03 | 472 | |
d62a17ae | 473 | /* XXX: if we have unnumbered interfaces we need to run detect address |
474 | * address change on all of them when the lo address changes */ | |
12e41d03 DL |
475 | } |
476 | ||
4763cd0e | 477 | int pim_update_source_set(struct interface *ifp, struct in_addr source) |
12e41d03 | 478 | { |
d62a17ae | 479 | struct pim_interface *pim_ifp = ifp->info; |
12e41d03 | 480 | |
d62a17ae | 481 | if (!pim_ifp) { |
482 | return PIM_IFACE_NOT_FOUND; | |
483 | } | |
12e41d03 | 484 | |
d62a17ae | 485 | if (pim_ifp->update_source.s_addr == source.s_addr) { |
486 | return PIM_UPDATE_SOURCE_DUP; | |
487 | } | |
4763cd0e | 488 | |
d62a17ae | 489 | pim_ifp->update_source = source; |
15569c58 | 490 | detect_address_change(ifp, 0 /* force_prim_as_any */, __func__); |
4763cd0e | 491 | |
d62a17ae | 492 | return PIM_SUCCESS; |
12e41d03 DL |
493 | } |
494 | ||
495 | void pim_if_addr_add(struct connected *ifc) | |
496 | { | |
d62a17ae | 497 | struct pim_interface *pim_ifp; |
498 | struct interface *ifp; | |
499 | struct in_addr ifaddr; | |
650d9ad1 | 500 | bool vxlan_term; |
d62a17ae | 501 | |
502 | zassert(ifc); | |
503 | ||
504 | ifp = ifc->ifp; | |
505 | zassert(ifp); | |
506 | pim_ifp = ifp->info; | |
507 | if (!pim_ifp) | |
508 | return; | |
509 | ||
510 | if (!if_is_operative(ifp)) | |
511 | return; | |
512 | ||
513 | if (PIM_DEBUG_ZEBRA) { | |
514 | char buf[BUFSIZ]; | |
515 | prefix2str(ifc->address, buf, BUFSIZ); | |
516 | zlog_debug("%s: %s ifindex=%d connected IP address %s %s", | |
5e81f5dd | 517 | __func__, ifp->name, ifp->ifindex, buf, |
d62a17ae | 518 | CHECK_FLAG(ifc->flags, ZEBRA_IFA_SECONDARY) |
519 | ? "secondary" | |
520 | : "primary"); | |
521 | } | |
522 | ||
523 | ifaddr = ifc->address->u.prefix4; | |
524 | ||
5e81f5dd | 525 | detect_address_change(ifp, 0, __func__); |
d62a17ae | 526 | |
2002dcdb DS |
527 | // if (ifc->address->family != AF_INET) |
528 | // return; | |
d62a17ae | 529 | |
530 | if (PIM_IF_TEST_IGMP(pim_ifp->options)) { | |
531 | struct igmp_sock *igmp; | |
532 | ||
533 | /* lookup IGMP socket */ | |
534 | igmp = pim_igmp_sock_lookup_ifaddr(pim_ifp->igmp_socket_list, | |
535 | ifaddr); | |
536 | if (!igmp) { | |
537 | /* if addr new, add IGMP socket */ | |
c77a04e4 DS |
538 | if (ifc->address->family == AF_INET) |
539 | pim_igmp_sock_add(pim_ifp->igmp_socket_list, | |
f83f3966 MS |
540 | ifaddr, ifp, false); |
541 | } else if (igmp->mtrace_only) { | |
542 | igmp_sock_delete(igmp); | |
543 | pim_igmp_sock_add(pim_ifp->igmp_socket_list, ifaddr, | |
544 | ifp, false); | |
d62a17ae | 545 | } |
546 | ||
547 | /* Replay Static IGMP groups */ | |
548 | if (pim_ifp->igmp_join_list) { | |
549 | struct listnode *node; | |
550 | struct listnode *nextnode; | |
551 | struct igmp_join *ij; | |
552 | int join_fd; | |
553 | ||
554 | for (ALL_LIST_ELEMENTS(pim_ifp->igmp_join_list, node, | |
555 | nextnode, ij)) { | |
556 | /* Close socket and reopen with Source and Group | |
557 | */ | |
558 | close(ij->sock_fd); | |
559 | join_fd = igmp_join_sock( | |
560 | ifp->name, ifp->ifindex, ij->group_addr, | |
561 | ij->source_addr); | |
562 | if (join_fd < 0) { | |
563 | char group_str[INET_ADDRSTRLEN]; | |
564 | char source_str[INET_ADDRSTRLEN]; | |
565 | pim_inet4_dump("<grp?>", ij->group_addr, | |
566 | group_str, | |
567 | sizeof(group_str)); | |
568 | pim_inet4_dump( | |
569 | "<src?>", ij->source_addr, | |
570 | source_str, sizeof(source_str)); | |
571 | zlog_warn( | |
572 | "%s: igmp_join_sock() failure for IGMP group %s source %s on interface %s", | |
5e81f5dd DS |
573 | __func__, group_str, source_str, |
574 | ifp->name); | |
d62a17ae | 575 | /* warning only */ |
576 | } else | |
577 | ij->sock_fd = join_fd; | |
578 | } | |
579 | } | |
580 | } /* igmp */ | |
f83f3966 MS |
581 | else { |
582 | struct igmp_sock *igmp; | |
583 | ||
584 | /* lookup IGMP socket */ | |
585 | igmp = pim_igmp_sock_lookup_ifaddr(pim_ifp->igmp_socket_list, | |
586 | ifaddr); | |
587 | if (ifc->address->family == AF_INET) { | |
588 | if (igmp) | |
589 | igmp_sock_delete(igmp); | |
590 | /* if addr new, add IGMP socket */ | |
591 | pim_igmp_sock_add(pim_ifp->igmp_socket_list, ifaddr, | |
592 | ifp, true); | |
593 | } | |
594 | } /* igmp mtrace only */ | |
d62a17ae | 595 | |
596 | if (PIM_IF_TEST_PIM(pim_ifp->options)) { | |
597 | ||
598 | if (PIM_INADDR_ISNOT_ANY(pim_ifp->primary_address)) { | |
599 | ||
600 | /* Interface has a valid socket ? */ | |
601 | if (pim_ifp->pim_sock_fd < 0) { | |
602 | if (pim_sock_add(ifp)) { | |
603 | zlog_warn( | |
604 | "Failure creating PIM socket for interface %s", | |
605 | ifp->name); | |
606 | } | |
607 | } | |
608 | struct pim_nexthop_cache *pnc = NULL; | |
609 | struct pim_rpf rpf; | |
610 | struct zclient *zclient = NULL; | |
611 | ||
612 | zclient = pim_zebra_zclient_get(); | |
613 | /* RP config might come prior to (local RP's interface) | |
614 | IF UP event. | |
615 | In this case, pnc would not have pim enabled | |
616 | nexthops. | |
617 | Once Interface is UP and pim info is available, | |
618 | reregister | |
619 | with RNH address to receive update and add the | |
620 | interface as nexthop. */ | |
621 | memset(&rpf, 0, sizeof(struct pim_rpf)); | |
622 | rpf.rpf_addr.family = AF_INET; | |
623 | rpf.rpf_addr.prefixlen = IPV4_MAX_BITLEN; | |
624 | rpf.rpf_addr.u.prefix4 = ifc->address->u.prefix4; | |
d0a4f55d | 625 | pnc = pim_nexthop_cache_find(pim_ifp->pim, &rpf); |
d62a17ae | 626 | if (pnc) |
64c86530 | 627 | pim_sendmsg_zebra_rnh(pim_ifp->pim, zclient, |
cf663ceb | 628 | pnc, |
d62a17ae | 629 | ZEBRA_NEXTHOP_REGISTER); |
630 | } | |
631 | } /* pim */ | |
632 | ||
633 | /* | |
634 | PIM or IGMP is enabled on interface, and there is at least one | |
635 | address assigned, then try to create a vif_index. | |
636 | */ | |
637 | if (pim_ifp->mroute_vif_index < 0) { | |
650d9ad1 AK |
638 | vxlan_term = pim_vxlan_is_term_dev_cfg(pim_ifp->pim, ifp); |
639 | pim_if_add_vif(ifp, false, vxlan_term); | |
d62a17ae | 640 | } |
641 | pim_ifchannel_scan_forward_start(ifp); | |
12e41d03 DL |
642 | } |
643 | ||
644 | static void pim_if_addr_del_igmp(struct connected *ifc) | |
645 | { | |
d62a17ae | 646 | struct pim_interface *pim_ifp = ifc->ifp->info; |
647 | struct igmp_sock *igmp; | |
648 | struct in_addr ifaddr; | |
649 | ||
650 | if (ifc->address->family != AF_INET) { | |
651 | /* non-IPv4 address */ | |
652 | return; | |
653 | } | |
654 | ||
655 | if (!pim_ifp) { | |
656 | /* IGMP not enabled on interface */ | |
657 | return; | |
658 | } | |
659 | ||
660 | ifaddr = ifc->address->u.prefix4; | |
661 | ||
662 | /* lookup IGMP socket */ | |
663 | igmp = pim_igmp_sock_lookup_ifaddr(pim_ifp->igmp_socket_list, ifaddr); | |
664 | if (igmp) { | |
665 | /* if addr found, del IGMP socket */ | |
666 | igmp_sock_delete(igmp); | |
667 | } | |
12e41d03 DL |
668 | } |
669 | ||
670 | static void pim_if_addr_del_pim(struct connected *ifc) | |
671 | { | |
d62a17ae | 672 | struct pim_interface *pim_ifp = ifc->ifp->info; |
12e41d03 | 673 | |
d62a17ae | 674 | if (ifc->address->family != AF_INET) { |
675 | /* non-IPv4 address */ | |
676 | return; | |
677 | } | |
12e41d03 | 678 | |
d62a17ae | 679 | if (!pim_ifp) { |
680 | /* PIM not enabled on interface */ | |
681 | return; | |
682 | } | |
683 | ||
684 | if (PIM_INADDR_ISNOT_ANY(pim_ifp->primary_address)) { | |
685 | /* Interface keeps a valid primary address */ | |
686 | return; | |
687 | } | |
12e41d03 | 688 | |
d62a17ae | 689 | if (pim_ifp->pim_sock_fd < 0) { |
690 | /* Interface does not hold a valid socket any longer */ | |
691 | return; | |
692 | } | |
294b6d72 | 693 | |
d62a17ae | 694 | /* |
695 | pim_sock_delete() closes the socket, stops read and timer threads, | |
696 | and kills all neighbors. | |
697 | */ | |
698 | pim_sock_delete(ifc->ifp, | |
699 | "last address has been removed from interface"); | |
700 | } | |
12e41d03 | 701 | |
d62a17ae | 702 | void pim_if_addr_del(struct connected *ifc, int force_prim_as_any) |
703 | { | |
704 | struct interface *ifp; | |
705 | ||
706 | zassert(ifc); | |
707 | ifp = ifc->ifp; | |
708 | zassert(ifp); | |
709 | ||
d62a17ae | 710 | if (PIM_DEBUG_ZEBRA) { |
711 | char buf[BUFSIZ]; | |
712 | prefix2str(ifc->address, buf, BUFSIZ); | |
713 | zlog_debug("%s: %s ifindex=%d disconnected IP address %s %s", | |
15569c58 | 714 | __func__, ifp->name, ifp->ifindex, buf, |
d62a17ae | 715 | CHECK_FLAG(ifc->flags, ZEBRA_IFA_SECONDARY) |
716 | ? "secondary" | |
717 | : "primary"); | |
718 | } | |
12e41d03 | 719 | |
15569c58 | 720 | detect_address_change(ifp, force_prim_as_any, __func__); |
d62a17ae | 721 | |
722 | pim_if_addr_del_igmp(ifc); | |
723 | pim_if_addr_del_pim(ifc); | |
12e41d03 DL |
724 | } |
725 | ||
726 | void pim_if_addr_add_all(struct interface *ifp) | |
727 | { | |
d62a17ae | 728 | struct connected *ifc; |
729 | struct listnode *node; | |
730 | struct listnode *nextnode; | |
731 | int v4_addrs = 0; | |
732 | int v6_addrs = 0; | |
733 | struct pim_interface *pim_ifp = ifp->info; | |
650d9ad1 | 734 | bool vxlan_term; |
d62a17ae | 735 | |
736 | ||
737 | /* PIM/IGMP enabled ? */ | |
738 | if (!pim_ifp) | |
739 | return; | |
740 | ||
741 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nextnode, ifc)) { | |
742 | struct prefix *p = ifc->address; | |
743 | ||
744 | if (p->family != AF_INET) | |
745 | v6_addrs++; | |
746 | else | |
747 | v4_addrs++; | |
748 | pim_if_addr_add(ifc); | |
749 | } | |
d8424057 | 750 | |
d62a17ae | 751 | if (!v4_addrs && v6_addrs && !if_is_loopback(ifp)) { |
752 | if (PIM_IF_TEST_PIM(pim_ifp->options)) { | |
753 | ||
754 | /* Interface has a valid primary address ? */ | |
755 | if (PIM_INADDR_ISNOT_ANY(pim_ifp->primary_address)) { | |
756 | ||
757 | /* Interface has a valid socket ? */ | |
758 | if (pim_ifp->pim_sock_fd < 0) { | |
759 | if (pim_sock_add(ifp)) { | |
760 | zlog_warn( | |
761 | "Failure creating PIM socket for interface %s", | |
762 | ifp->name); | |
763 | } | |
764 | } | |
765 | } | |
766 | } /* pim */ | |
767 | } | |
768 | /* | |
769 | * PIM or IGMP is enabled on interface, and there is at least one | |
770 | * address assigned, then try to create a vif_index. | |
771 | */ | |
772 | if (pim_ifp->mroute_vif_index < 0) { | |
650d9ad1 AK |
773 | vxlan_term = pim_vxlan_is_term_dev_cfg(pim_ifp->pim, ifp); |
774 | pim_if_add_vif(ifp, false, vxlan_term); | |
d62a17ae | 775 | } |
776 | pim_ifchannel_scan_forward_start(ifp); | |
777 | ||
fec883d9 | 778 | pim_rp_setup(pim_ifp->pim); |
d62a17ae | 779 | pim_rp_check_on_if_add(pim_ifp); |
12e41d03 DL |
780 | } |
781 | ||
782 | void pim_if_addr_del_all(struct interface *ifp) | |
783 | { | |
d62a17ae | 784 | struct connected *ifc; |
785 | struct listnode *node; | |
786 | struct listnode *nextnode; | |
5ec5d976 | 787 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); |
819f099b DS |
788 | struct pim_instance *pim; |
789 | ||
790 | if (!vrf) | |
791 | return; | |
792 | pim = vrf->info; | |
d62a17ae | 793 | |
794 | /* PIM/IGMP enabled ? */ | |
795 | if (!ifp->info) | |
796 | return; | |
12e41d03 | 797 | |
d62a17ae | 798 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nextnode, ifc)) { |
799 | struct prefix *p = ifc->address; | |
12e41d03 | 800 | |
d62a17ae | 801 | if (p->family != AF_INET) |
802 | continue; | |
12e41d03 | 803 | |
d62a17ae | 804 | pim_if_addr_del(ifc, 1 /* force_prim_as_any=true */); |
805 | } | |
da3dcffb | 806 | |
5ec5d976 DS |
807 | pim_rp_setup(pim); |
808 | pim_i_am_rp_re_evaluate(pim); | |
12e41d03 DL |
809 | } |
810 | ||
811 | void pim_if_addr_del_all_igmp(struct interface *ifp) | |
812 | { | |
d62a17ae | 813 | struct connected *ifc; |
814 | struct listnode *node; | |
815 | struct listnode *nextnode; | |
816 | ||
817 | /* PIM/IGMP enabled ? */ | |
818 | if (!ifp->info) | |
819 | return; | |
820 | ||
821 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nextnode, ifc)) { | |
822 | struct prefix *p = ifc->address; | |
823 | ||
824 | if (p->family != AF_INET) | |
825 | continue; | |
826 | ||
827 | pim_if_addr_del_igmp(ifc); | |
828 | } | |
12e41d03 DL |
829 | } |
830 | ||
831 | void pim_if_addr_del_all_pim(struct interface *ifp) | |
832 | { | |
d62a17ae | 833 | struct connected *ifc; |
834 | struct listnode *node; | |
835 | struct listnode *nextnode; | |
836 | ||
837 | /* PIM/IGMP enabled ? */ | |
838 | if (!ifp->info) | |
839 | return; | |
840 | ||
841 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nextnode, ifc)) { | |
842 | struct prefix *p = ifc->address; | |
843 | ||
844 | if (p->family != AF_INET) | |
845 | continue; | |
846 | ||
847 | pim_if_addr_del_pim(ifc); | |
848 | } | |
12e41d03 DL |
849 | } |
850 | ||
d62a17ae | 851 | struct in_addr pim_find_primary_addr(struct interface *ifp) |
12e41d03 | 852 | { |
d62a17ae | 853 | struct connected *ifc; |
854 | struct listnode *node; | |
819f099b | 855 | struct in_addr addr = {0}; |
d62a17ae | 856 | int v4_addrs = 0; |
857 | int v6_addrs = 0; | |
858 | struct pim_interface *pim_ifp = ifp->info; | |
896b2044 | 859 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); |
d62a17ae | 860 | |
819f099b DS |
861 | if (!vrf) |
862 | return addr; | |
863 | ||
d62a17ae | 864 | if (pim_ifp && PIM_INADDR_ISNOT_ANY(pim_ifp->update_source)) { |
865 | return pim_ifp->update_source; | |
866 | } | |
867 | ||
868 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, ifc)) { | |
869 | struct prefix *p = ifc->address; | |
870 | ||
871 | if (p->family != AF_INET) { | |
872 | v6_addrs++; | |
873 | continue; | |
874 | } | |
875 | ||
876 | if (PIM_INADDR_IS_ANY(p->u.prefix4)) { | |
877 | zlog_warn( | |
878 | "%s: null IPv4 address connected to interface %s", | |
5e81f5dd | 879 | __func__, ifp->name); |
d62a17ae | 880 | continue; |
881 | } | |
882 | ||
883 | v4_addrs++; | |
884 | ||
885 | if (CHECK_FLAG(ifc->flags, ZEBRA_IFA_SECONDARY)) | |
886 | continue; | |
887 | ||
888 | return p->u.prefix4; | |
889 | } | |
890 | ||
891 | /* | |
892 | * If we have no v4_addrs and v6 is configured | |
893 | * We probably are using unnumbered | |
894 | * So let's grab the loopbacks v4 address | |
895 | * and use that as the primary address | |
896 | */ | |
897 | if (!v4_addrs && v6_addrs && !if_is_loopback(ifp)) { | |
898 | struct interface *lo_ifp; | |
fec883d9 | 899 | // DBS - Come back and check here |
896b2044 DS |
900 | if (ifp->vrf_id == VRF_DEFAULT) |
901 | lo_ifp = if_lookup_by_name("lo", vrf->vrf_id); | |
902 | else | |
903 | lo_ifp = if_lookup_by_name(vrf->name, vrf->vrf_id); | |
904 | ||
d62a17ae | 905 | if (lo_ifp) |
906 | return pim_find_primary_addr(lo_ifp); | |
907 | } | |
908 | ||
909 | addr.s_addr = PIM_NET_INADDR_ANY; | |
910 | ||
911 | return addr; | |
12e41d03 DL |
912 | } |
913 | ||
d62a17ae | 914 | static int pim_iface_next_vif_index(struct interface *ifp) |
744d91b3 | 915 | { |
f88df3a6 DS |
916 | struct pim_interface *pim_ifp = ifp->info; |
917 | struct pim_instance *pim = pim_ifp->pim; | |
d62a17ae | 918 | int i; |
f88df3a6 | 919 | |
d62a17ae | 920 | /* |
921 | * The pimreg vif is always going to be in index 0 | |
922 | * of the table. | |
923 | */ | |
924 | if (ifp->ifindex == PIM_OIF_PIM_REGISTER_VIF) | |
925 | return 0; | |
926 | ||
927 | for (i = 1; i < MAXVIFS; i++) { | |
f88df3a6 | 928 | if (pim->iface_vif_index[i] == 0) |
d62a17ae | 929 | return i; |
930 | } | |
931 | return MAXVIFS; | |
744d91b3 DS |
932 | } |
933 | ||
12e41d03 DL |
934 | /* |
935 | pim_if_add_vif() uses ifindex as vif_index | |
936 | ||
937 | see also pim_if_find_vifindex_by_ifindex() | |
938 | */ | |
b1891fa0 | 939 | int pim_if_add_vif(struct interface *ifp, bool ispimreg, bool is_vxlan_term) |
12e41d03 | 940 | { |
d62a17ae | 941 | struct pim_interface *pim_ifp = ifp->info; |
942 | struct in_addr ifaddr; | |
943 | unsigned char flags = 0; | |
944 | ||
945 | zassert(pim_ifp); | |
946 | ||
947 | if (pim_ifp->mroute_vif_index > 0) { | |
948 | zlog_warn("%s: vif_index=%d > 0 on interface %s ifindex=%d", | |
15569c58 DA |
949 | __func__, pim_ifp->mroute_vif_index, ifp->name, |
950 | ifp->ifindex); | |
d62a17ae | 951 | return -1; |
952 | } | |
953 | ||
954 | if (ifp->ifindex < 0) { | |
15569c58 DA |
955 | zlog_warn("%s: ifindex=%d < 1 on interface %s", __func__, |
956 | ifp->ifindex, ifp->name); | |
d62a17ae | 957 | return -2; |
958 | } | |
959 | ||
960 | ifaddr = pim_ifp->primary_address; | |
b1891fa0 | 961 | if (!ispimreg && !is_vxlan_term && PIM_INADDR_IS_ANY(ifaddr)) { |
d62a17ae | 962 | zlog_warn( |
963 | "%s: could not get address for interface %s ifindex=%d", | |
15569c58 | 964 | __func__, ifp->name, ifp->ifindex); |
d62a17ae | 965 | return -4; |
966 | } | |
967 | ||
968 | pim_ifp->mroute_vif_index = pim_iface_next_vif_index(ifp); | |
969 | ||
970 | if (pim_ifp->mroute_vif_index >= MAXVIFS) { | |
971 | zlog_warn( | |
972 | "%s: Attempting to configure more than MAXVIFS=%d on pim enabled interface %s", | |
15569c58 | 973 | __func__, MAXVIFS, ifp->name); |
d62a17ae | 974 | return -3; |
975 | } | |
976 | ||
977 | if (ifp->ifindex == PIM_OIF_PIM_REGISTER_VIF) | |
978 | flags = VIFF_REGISTER; | |
b3f2bf7c | 979 | #ifdef VIFF_USE_IFINDEX |
d62a17ae | 980 | else |
981 | flags = VIFF_USE_IFINDEX; | |
b3f2bf7c RW |
982 | #endif |
983 | ||
d62a17ae | 984 | if (pim_mroute_add_vif(ifp, ifaddr, flags)) { |
985 | /* pim_mroute_add_vif reported error */ | |
986 | return -5; | |
987 | } | |
12e41d03 | 988 | |
f88df3a6 | 989 | pim_ifp->pim->iface_vif_index[pim_ifp->mroute_vif_index] = 1; |
269c1fe1 AK |
990 | |
991 | /* if the device qualifies as pim_vxlan iif/oif update vxlan entries */ | |
992 | pim_vxlan_add_vif(ifp); | |
993 | ||
d62a17ae | 994 | return 0; |
12e41d03 DL |
995 | } |
996 | ||
12e41d03 DL |
997 | int pim_if_del_vif(struct interface *ifp) |
998 | { | |
d62a17ae | 999 | struct pim_interface *pim_ifp = ifp->info; |
12e41d03 | 1000 | |
d62a17ae | 1001 | if (pim_ifp->mroute_vif_index < 1) { |
1002 | zlog_warn("%s: vif_index=%d < 1 on interface %s ifindex=%d", | |
15569c58 DA |
1003 | __func__, pim_ifp->mroute_vif_index, ifp->name, |
1004 | ifp->ifindex); | |
d62a17ae | 1005 | return -1; |
1006 | } | |
12e41d03 | 1007 | |
269c1fe1 AK |
1008 | /* if the device was a pim_vxlan iif/oif update vxlan mroute entries */ |
1009 | pim_vxlan_del_vif(ifp); | |
1010 | ||
ea3d967b | 1011 | pim_mroute_del_vif(ifp); |
12e41d03 | 1012 | |
d62a17ae | 1013 | /* |
1014 | Update vif_index | |
1015 | */ | |
f88df3a6 | 1016 | pim_ifp->pim->iface_vif_index[pim_ifp->mroute_vif_index] = 0; |
12e41d03 | 1017 | |
d62a17ae | 1018 | pim_ifp->mroute_vif_index = -1; |
12e41d03 | 1019 | |
d62a17ae | 1020 | return 0; |
12e41d03 DL |
1021 | } |
1022 | ||
da82728d | 1023 | // DBS - VRF Revist |
7cfc7bcf DS |
1024 | struct interface *pim_if_find_by_vif_index(struct pim_instance *pim, |
1025 | ifindex_t vif_index) | |
12e41d03 | 1026 | { |
d62a17ae | 1027 | struct interface *ifp; |
12e41d03 | 1028 | |
451fda4f | 1029 | FOR_ALL_INTERFACES (pim->vrf, ifp) { |
7cfc7bcf DS |
1030 | if (ifp->info) { |
1031 | struct pim_interface *pim_ifp; | |
1032 | pim_ifp = ifp->info; | |
b892f1dd | 1033 | |
7cfc7bcf DS |
1034 | if (vif_index == pim_ifp->mroute_vif_index) |
1035 | return ifp; | |
d62a17ae | 1036 | } |
1037 | } | |
12e41d03 | 1038 | |
d62a17ae | 1039 | return 0; |
12e41d03 DL |
1040 | } |
1041 | ||
1042 | /* | |
1043 | pim_if_add_vif() uses ifindex as vif_index | |
1044 | */ | |
7cfc7bcf | 1045 | int pim_if_find_vifindex_by_ifindex(struct pim_instance *pim, ifindex_t ifindex) |
12e41d03 | 1046 | { |
d62a17ae | 1047 | struct pim_interface *pim_ifp; |
1048 | struct interface *ifp; | |
ae90dfbb | 1049 | |
7cfc7bcf | 1050 | ifp = if_lookup_by_index(ifindex, pim->vrf_id); |
d62a17ae | 1051 | if (!ifp || !ifp->info) |
1052 | return -1; | |
1053 | pim_ifp = ifp->info; | |
ae90dfbb | 1054 | |
d62a17ae | 1055 | return pim_ifp->mroute_vif_index; |
12e41d03 DL |
1056 | } |
1057 | ||
1058 | int pim_if_lan_delay_enabled(struct interface *ifp) | |
1059 | { | |
d62a17ae | 1060 | struct pim_interface *pim_ifp; |
12e41d03 | 1061 | |
d62a17ae | 1062 | pim_ifp = ifp->info; |
1063 | zassert(pim_ifp); | |
1064 | zassert(pim_ifp->pim_number_of_nonlandelay_neighbors >= 0); | |
12e41d03 | 1065 | |
d62a17ae | 1066 | return pim_ifp->pim_number_of_nonlandelay_neighbors == 0; |
12e41d03 DL |
1067 | } |
1068 | ||
1069 | uint16_t pim_if_effective_propagation_delay_msec(struct interface *ifp) | |
1070 | { | |
d62a17ae | 1071 | if (pim_if_lan_delay_enabled(ifp)) { |
1072 | struct pim_interface *pim_ifp; | |
1073 | pim_ifp = ifp->info; | |
1074 | return pim_ifp->pim_neighbors_highest_propagation_delay_msec; | |
1075 | } else { | |
1076 | return PIM_DEFAULT_PROPAGATION_DELAY_MSEC; | |
1077 | } | |
12e41d03 DL |
1078 | } |
1079 | ||
1080 | uint16_t pim_if_effective_override_interval_msec(struct interface *ifp) | |
1081 | { | |
d62a17ae | 1082 | if (pim_if_lan_delay_enabled(ifp)) { |
1083 | struct pim_interface *pim_ifp; | |
1084 | pim_ifp = ifp->info; | |
1085 | return pim_ifp->pim_neighbors_highest_override_interval_msec; | |
1086 | } else { | |
1087 | return PIM_DEFAULT_OVERRIDE_INTERVAL_MSEC; | |
1088 | } | |
12e41d03 DL |
1089 | } |
1090 | ||
1091 | int pim_if_t_override_msec(struct interface *ifp) | |
1092 | { | |
d62a17ae | 1093 | int effective_override_interval_msec; |
1094 | int t_override_msec; | |
12e41d03 | 1095 | |
d62a17ae | 1096 | effective_override_interval_msec = |
1097 | pim_if_effective_override_interval_msec(ifp); | |
12e41d03 | 1098 | |
d62a17ae | 1099 | t_override_msec = random() % (effective_override_interval_msec + 1); |
12e41d03 | 1100 | |
d62a17ae | 1101 | return t_override_msec; |
12e41d03 DL |
1102 | } |
1103 | ||
1104 | uint16_t pim_if_jp_override_interval_msec(struct interface *ifp) | |
1105 | { | |
d62a17ae | 1106 | return pim_if_effective_propagation_delay_msec(ifp) |
1107 | + pim_if_effective_override_interval_msec(ifp); | |
12e41d03 DL |
1108 | } |
1109 | ||
1110 | /* | |
1111 | RFC 4601: 4.1.6. State Summarization Macros | |
1112 | ||
1113 | The function NBR( I, A ) uses information gathered through PIM Hello | |
1114 | messages to map the IP address A of a directly connected PIM | |
1115 | neighbor router on interface I to the primary IP address of the same | |
1116 | router (Section 4.3.4). The primary IP address of a neighbor is the | |
1117 | address that it uses as the source of its PIM Hello messages. | |
1118 | */ | |
1119 | struct pim_neighbor *pim_if_find_neighbor(struct interface *ifp, | |
1120 | struct in_addr addr) | |
1121 | { | |
d62a17ae | 1122 | struct listnode *neighnode; |
1123 | struct pim_neighbor *neigh; | |
1124 | struct pim_interface *pim_ifp; | |
1125 | struct prefix p; | |
1126 | ||
1127 | zassert(ifp); | |
1128 | ||
1129 | pim_ifp = ifp->info; | |
1130 | if (!pim_ifp) { | |
5e81f5dd DS |
1131 | zlog_warn("%s: multicast not enabled on interface %s", __func__, |
1132 | ifp->name); | |
d62a17ae | 1133 | return 0; |
1134 | } | |
1135 | ||
1136 | p.family = AF_INET; | |
1137 | p.u.prefix4 = addr; | |
1138 | p.prefixlen = IPV4_MAX_PREFIXLEN; | |
1139 | ||
1140 | for (ALL_LIST_ELEMENTS_RO(pim_ifp->pim_neighbor_list, neighnode, | |
1141 | neigh)) { | |
1142 | ||
1143 | /* primary address ? */ | |
1144 | if (neigh->source_addr.s_addr == addr.s_addr) | |
1145 | return neigh; | |
1146 | ||
1147 | /* secondary address ? */ | |
1148 | if (pim_neighbor_find_secondary(neigh, &p)) | |
1149 | return neigh; | |
1150 | } | |
1151 | ||
1152 | if (PIM_DEBUG_PIM_TRACE) { | |
1153 | char addr_str[INET_ADDRSTRLEN]; | |
1154 | pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str)); | |
1155 | zlog_debug( | |
1156 | "%s: neighbor not found for address %s on interface %s", | |
5e81f5dd | 1157 | __func__, addr_str, ifp->name); |
d62a17ae | 1158 | } |
1159 | ||
1160 | return NULL; | |
12e41d03 DL |
1161 | } |
1162 | ||
1163 | long pim_if_t_suppressed_msec(struct interface *ifp) | |
1164 | { | |
d62a17ae | 1165 | struct pim_interface *pim_ifp; |
1166 | long t_suppressed_msec; | |
1167 | uint32_t ramount = 0; | |
12e41d03 | 1168 | |
d62a17ae | 1169 | pim_ifp = ifp->info; |
1170 | zassert(pim_ifp); | |
12e41d03 | 1171 | |
d62a17ae | 1172 | /* join suppression disabled ? */ |
1173 | if (PIM_IF_TEST_PIM_CAN_DISABLE_JOIN_SUPRESSION(pim_ifp->options)) | |
1174 | return 0; | |
12e41d03 | 1175 | |
d62a17ae | 1176 | /* t_suppressed = t_periodic * rand(1.1, 1.4) */ |
1177 | ramount = 1100 + (random() % (1400 - 1100 + 1)); | |
5b45753e | 1178 | t_suppressed_msec = router->t_periodic * ramount; |
12e41d03 | 1179 | |
d62a17ae | 1180 | return t_suppressed_msec; |
12e41d03 DL |
1181 | } |
1182 | ||
1183 | static void igmp_join_free(struct igmp_join *ij) | |
1184 | { | |
d62a17ae | 1185 | XFREE(MTYPE_PIM_IGMP_JOIN, ij); |
12e41d03 DL |
1186 | } |
1187 | ||
1188 | static struct igmp_join *igmp_join_find(struct list *join_list, | |
1189 | struct in_addr group_addr, | |
1190 | struct in_addr source_addr) | |
1191 | { | |
d62a17ae | 1192 | struct listnode *node; |
1193 | struct igmp_join *ij; | |
12e41d03 | 1194 | |
d62a17ae | 1195 | zassert(join_list); |
12e41d03 | 1196 | |
d62a17ae | 1197 | for (ALL_LIST_ELEMENTS_RO(join_list, node, ij)) { |
1198 | if ((group_addr.s_addr == ij->group_addr.s_addr) | |
1199 | && (source_addr.s_addr == ij->source_addr.s_addr)) | |
1200 | return ij; | |
1201 | } | |
12e41d03 | 1202 | |
d62a17ae | 1203 | return 0; |
12e41d03 DL |
1204 | } |
1205 | ||
d62a17ae | 1206 | static int igmp_join_sock(const char *ifname, ifindex_t ifindex, |
1207 | struct in_addr group_addr, struct in_addr source_addr) | |
12e41d03 | 1208 | { |
d62a17ae | 1209 | int join_fd; |
12e41d03 | 1210 | |
d62a17ae | 1211 | join_fd = pim_socket_raw(IPPROTO_IGMP); |
1212 | if (join_fd < 0) { | |
1213 | return -1; | |
1214 | } | |
12e41d03 | 1215 | |
c936e76f DS |
1216 | if (pim_igmp_join_source(join_fd, ifindex, group_addr, source_addr)) { |
1217 | char group_str[INET_ADDRSTRLEN]; | |
1218 | char source_str[INET_ADDRSTRLEN]; | |
1219 | pim_inet4_dump("<grp?>", group_addr, group_str, | |
1220 | sizeof(group_str)); | |
1221 | pim_inet4_dump("<src?>", source_addr, source_str, | |
1222 | sizeof(source_str)); | |
1223 | zlog_warn( | |
1224 | "%s: setsockopt(fd=%d) failure for IGMP group %s source %s ifindex %d on interface %s: errno=%d: %s", | |
15569c58 DA |
1225 | __func__, join_fd, group_str, source_str, ifindex, |
1226 | ifname, errno, safe_strerror(errno)); | |
c936e76f | 1227 | |
d62a17ae | 1228 | close(join_fd); |
1229 | return -2; | |
1230 | } | |
12e41d03 | 1231 | |
d62a17ae | 1232 | return join_fd; |
12e41d03 DL |
1233 | } |
1234 | ||
1235 | static struct igmp_join *igmp_join_new(struct interface *ifp, | |
1236 | struct in_addr group_addr, | |
1237 | struct in_addr source_addr) | |
1238 | { | |
d62a17ae | 1239 | struct pim_interface *pim_ifp; |
1240 | struct igmp_join *ij; | |
1241 | int join_fd; | |
1242 | ||
1243 | pim_ifp = ifp->info; | |
1244 | zassert(pim_ifp); | |
1245 | ||
1246 | join_fd = igmp_join_sock(ifp->name, ifp->ifindex, group_addr, | |
1247 | source_addr); | |
1248 | if (join_fd < 0) { | |
1249 | char group_str[INET_ADDRSTRLEN]; | |
1250 | char source_str[INET_ADDRSTRLEN]; | |
c936e76f | 1251 | |
d62a17ae | 1252 | pim_inet4_dump("<grp?>", group_addr, group_str, |
1253 | sizeof(group_str)); | |
1254 | pim_inet4_dump("<src?>", source_addr, source_str, | |
1255 | sizeof(source_str)); | |
1256 | zlog_warn( | |
1257 | "%s: igmp_join_sock() failure for IGMP group %s source %s on interface %s", | |
15569c58 | 1258 | __func__, group_str, source_str, ifp->name); |
d62a17ae | 1259 | return 0; |
1260 | } | |
1261 | ||
1262 | ij = XCALLOC(MTYPE_PIM_IGMP_JOIN, sizeof(*ij)); | |
d62a17ae | 1263 | |
1264 | ij->sock_fd = join_fd; | |
1265 | ij->group_addr = group_addr; | |
1266 | ij->source_addr = source_addr; | |
1267 | ij->sock_creation = pim_time_monotonic_sec(); | |
1268 | ||
1269 | listnode_add(pim_ifp->igmp_join_list, ij); | |
1270 | ||
1271 | return ij; | |
12e41d03 DL |
1272 | } |
1273 | ||
37664928 | 1274 | ferr_r pim_if_igmp_join_add(struct interface *ifp, struct in_addr group_addr, |
996c9314 | 1275 | struct in_addr source_addr) |
12e41d03 | 1276 | { |
d62a17ae | 1277 | struct pim_interface *pim_ifp; |
1278 | struct igmp_join *ij; | |
1279 | ||
1280 | pim_ifp = ifp->info; | |
1281 | if (!pim_ifp) { | |
37664928 DS |
1282 | return ferr_cfg_invalid("multicast not enabled on interface %s", |
1283 | ifp->name); | |
d62a17ae | 1284 | } |
1285 | ||
1286 | if (!pim_ifp->igmp_join_list) { | |
1287 | pim_ifp->igmp_join_list = list_new(); | |
d62a17ae | 1288 | pim_ifp->igmp_join_list->del = (void (*)(void *))igmp_join_free; |
1289 | } | |
1290 | ||
1291 | ij = igmp_join_find(pim_ifp->igmp_join_list, group_addr, source_addr); | |
53d829f5 DW |
1292 | |
1293 | /* This interface has already been configured to join this IGMP group | |
1294 | */ | |
d62a17ae | 1295 | if (ij) { |
53d829f5 | 1296 | return ferr_ok(); |
d62a17ae | 1297 | } |
1298 | ||
11884868 | 1299 | (void)igmp_join_new(ifp, group_addr, source_addr); |
d62a17ae | 1300 | |
1301 | if (PIM_DEBUG_IGMP_EVENTS) { | |
1302 | char group_str[INET_ADDRSTRLEN]; | |
1303 | char source_str[INET_ADDRSTRLEN]; | |
1304 | pim_inet4_dump("<grp?>", group_addr, group_str, | |
1305 | sizeof(group_str)); | |
1306 | pim_inet4_dump("<src?>", source_addr, source_str, | |
1307 | sizeof(source_str)); | |
1308 | zlog_debug( | |
1309 | "%s: issued static igmp join for channel (S,G)=(%s,%s) on interface %s", | |
15569c58 | 1310 | __func__, source_str, group_str, ifp->name); |
d62a17ae | 1311 | } |
12e41d03 | 1312 | |
37664928 | 1313 | return ferr_ok(); |
d62a17ae | 1314 | } |
12e41d03 DL |
1315 | |
1316 | ||
d62a17ae | 1317 | int pim_if_igmp_join_del(struct interface *ifp, struct in_addr group_addr, |
12e41d03 DL |
1318 | struct in_addr source_addr) |
1319 | { | |
d62a17ae | 1320 | struct pim_interface *pim_ifp; |
1321 | struct igmp_join *ij; | |
1322 | ||
1323 | pim_ifp = ifp->info; | |
1324 | if (!pim_ifp) { | |
15569c58 DA |
1325 | zlog_warn("%s: multicast not enabled on interface %s", __func__, |
1326 | ifp->name); | |
d62a17ae | 1327 | return -1; |
1328 | } | |
1329 | ||
1330 | if (!pim_ifp->igmp_join_list) { | |
15569c58 DA |
1331 | zlog_warn("%s: no IGMP join on interface %s", __func__, |
1332 | ifp->name); | |
d62a17ae | 1333 | return -2; |
1334 | } | |
1335 | ||
1336 | ij = igmp_join_find(pim_ifp->igmp_join_list, group_addr, source_addr); | |
1337 | if (!ij) { | |
1338 | char group_str[INET_ADDRSTRLEN]; | |
1339 | char source_str[INET_ADDRSTRLEN]; | |
1340 | pim_inet4_dump("<grp?>", group_addr, group_str, | |
1341 | sizeof(group_str)); | |
1342 | pim_inet4_dump("<src?>", source_addr, source_str, | |
1343 | sizeof(source_str)); | |
1344 | zlog_warn( | |
1345 | "%s: could not find IGMP group %s source %s on interface %s", | |
15569c58 | 1346 | __func__, group_str, source_str, ifp->name); |
d62a17ae | 1347 | return -3; |
1348 | } | |
1349 | ||
1350 | if (close(ij->sock_fd)) { | |
1351 | char group_str[INET_ADDRSTRLEN]; | |
1352 | char source_str[INET_ADDRSTRLEN]; | |
1353 | pim_inet4_dump("<grp?>", group_addr, group_str, | |
1354 | sizeof(group_str)); | |
1355 | pim_inet4_dump("<src?>", source_addr, source_str, | |
1356 | sizeof(source_str)); | |
1357 | zlog_warn( | |
1358 | "%s: failure closing sock_fd=%d for IGMP group %s source %s on interface %s: errno=%d: %s", | |
15569c58 DA |
1359 | __func__, ij->sock_fd, group_str, source_str, ifp->name, |
1360 | errno, safe_strerror(errno)); | |
d62a17ae | 1361 | /* warning only */ |
1362 | } | |
1363 | listnode_delete(pim_ifp->igmp_join_list, ij); | |
1364 | igmp_join_free(ij); | |
1365 | if (listcount(pim_ifp->igmp_join_list) < 1) { | |
6a154c88 | 1366 | list_delete(&pim_ifp->igmp_join_list); |
d62a17ae | 1367 | pim_ifp->igmp_join_list = 0; |
1368 | } | |
1369 | ||
1370 | return 0; | |
12e41d03 DL |
1371 | } |
1372 | ||
1373 | static void pim_if_igmp_join_del_all(struct interface *ifp) | |
1374 | { | |
d62a17ae | 1375 | struct pim_interface *pim_ifp; |
1376 | struct listnode *node; | |
1377 | struct listnode *nextnode; | |
1378 | struct igmp_join *ij; | |
1379 | ||
1380 | pim_ifp = ifp->info; | |
1381 | if (!pim_ifp) { | |
5e81f5dd DS |
1382 | zlog_warn("%s: multicast not enabled on interface %s", __func__, |
1383 | ifp->name); | |
d62a17ae | 1384 | return; |
1385 | } | |
1386 | ||
1387 | if (!pim_ifp->igmp_join_list) | |
1388 | return; | |
1389 | ||
1390 | for (ALL_LIST_ELEMENTS(pim_ifp->igmp_join_list, node, nextnode, ij)) | |
1391 | pim_if_igmp_join_del(ifp, ij->group_addr, ij->source_addr); | |
12e41d03 DL |
1392 | } |
1393 | ||
1394 | /* | |
1395 | RFC 4601 | |
1396 | ||
1397 | Transitions from "I am Assert Loser" State | |
1398 | ||
1399 | Current Winner's GenID Changes or NLT Expires | |
1400 | ||
1401 | The Neighbor Liveness Timer associated with the current winner | |
1402 | expires or we receive a Hello message from the current winner | |
1403 | reporting a different GenID from the one it previously reported. | |
1404 | This indicates that the current winner's interface or router has | |
1405 | gone down (and may have come back up), and so we must assume it no | |
1406 | longer knows it was the winner. | |
1407 | */ | |
1408 | void pim_if_assert_on_neighbor_down(struct interface *ifp, | |
1409 | struct in_addr neigh_addr) | |
1410 | { | |
d62a17ae | 1411 | struct pim_interface *pim_ifp; |
d62a17ae | 1412 | struct pim_ifchannel *ch; |
1413 | ||
1414 | pim_ifp = ifp->info; | |
1415 | zassert(pim_ifp); | |
1416 | ||
a2addae8 | 1417 | RB_FOREACH (ch, pim_ifchannel_rb, &pim_ifp->ifchannel_rb) { |
d62a17ae | 1418 | /* Is (S,G,I) assert loser ? */ |
1419 | if (ch->ifassert_state != PIM_IFASSERT_I_AM_LOSER) | |
1420 | continue; | |
1421 | /* Dead neighbor was winner ? */ | |
1422 | if (ch->ifassert_winner.s_addr != neigh_addr.s_addr) | |
1423 | continue; | |
1424 | ||
1425 | assert_action_a5(ch); | |
1426 | } | |
12e41d03 DL |
1427 | } |
1428 | ||
1429 | void pim_if_update_join_desired(struct pim_interface *pim_ifp) | |
1430 | { | |
d62a17ae | 1431 | struct pim_ifchannel *ch; |
12e41d03 | 1432 | |
d62a17ae | 1433 | /* clear off flag from interface's upstreams */ |
a2addae8 | 1434 | RB_FOREACH (ch, pim_ifchannel_rb, &pim_ifp->ifchannel_rb) { |
d62a17ae | 1435 | PIM_UPSTREAM_FLAG_UNSET_DR_JOIN_DESIRED_UPDATED( |
1436 | ch->upstream->flags); | |
1437 | } | |
12e41d03 | 1438 | |
d62a17ae | 1439 | /* scan per-interface (S,G,I) state on this I interface */ |
a2addae8 | 1440 | RB_FOREACH (ch, pim_ifchannel_rb, &pim_ifp->ifchannel_rb) { |
d62a17ae | 1441 | struct pim_upstream *up = ch->upstream; |
12e41d03 | 1442 | |
d62a17ae | 1443 | if (PIM_UPSTREAM_FLAG_TEST_DR_JOIN_DESIRED_UPDATED(up->flags)) |
1444 | continue; | |
12e41d03 | 1445 | |
d62a17ae | 1446 | /* update join_desired for the global (S,G) state */ |
9b29ea95 | 1447 | pim_upstream_update_join_desired(pim_ifp->pim, up); |
d62a17ae | 1448 | PIM_UPSTREAM_FLAG_SET_DR_JOIN_DESIRED_UPDATED(up->flags); |
1449 | } | |
12e41d03 DL |
1450 | } |
1451 | ||
1452 | void pim_if_update_assert_tracking_desired(struct interface *ifp) | |
1453 | { | |
d62a17ae | 1454 | struct pim_interface *pim_ifp; |
d62a17ae | 1455 | struct pim_ifchannel *ch; |
1456 | ||
1457 | pim_ifp = ifp->info; | |
1458 | if (!pim_ifp) | |
1459 | return; | |
1460 | ||
a2addae8 | 1461 | RB_FOREACH (ch, pim_ifchannel_rb, &pim_ifp->ifchannel_rb) { |
d62a17ae | 1462 | pim_ifchannel_update_assert_tracking_desired(ch); |
1463 | } | |
12e41d03 | 1464 | } |
c992c9a0 DS |
1465 | |
1466 | /* | |
1467 | * PIM wants to have an interface pointer for everything it does. | |
1468 | * The pimreg is a special interface that we have that is not | |
1469 | * quite an inteface but a VIF is created for it. | |
1470 | */ | |
43e40fdf | 1471 | void pim_if_create_pimreg(struct pim_instance *pim) |
c992c9a0 | 1472 | { |
bcc24579 | 1473 | char pimreg_name[INTERFACE_NAMSIZ]; |
c992c9a0 | 1474 | |
43e40fdf | 1475 | if (!pim->regiface) { |
afa2b179 | 1476 | if (pim->vrf_id == VRF_DEFAULT) |
bcc24579 | 1477 | strlcpy(pimreg_name, "pimreg", sizeof(pimreg_name)); |
afa2b179 | 1478 | else |
bcc24579 RW |
1479 | snprintf(pimreg_name, sizeof(pimreg_name), "pimreg%u", |
1480 | pim->vrf->data.l.table_id); | |
afa2b179 | 1481 | |
d5c65bf1 | 1482 | pim->regiface = if_create_name(pimreg_name, pim->vrf_id); |
43e40fdf DS |
1483 | pim->regiface->ifindex = PIM_OIF_PIM_REGISTER_VIF; |
1484 | ||
b1891fa0 AK |
1485 | pim_if_new(pim->regiface, false, false, true, |
1486 | false /*vxlan_term*/); | |
85d25587 DS |
1487 | /* |
1488 | * On vrf moves we delete the interface if there | |
1489 | * is nothing going on with it. We cannot have | |
1490 | * the pimregiface deleted. | |
1491 | */ | |
1492 | pim->regiface->configured = true; | |
1493 | ||
d62a17ae | 1494 | } |
c992c9a0 | 1495 | } |
3565202d | 1496 | |
d62a17ae | 1497 | int pim_if_connected_to_source(struct interface *ifp, struct in_addr src) |
3565202d | 1498 | { |
d62a17ae | 1499 | struct listnode *cnode; |
1500 | struct connected *c; | |
1501 | struct prefix p; | |
1502 | ||
1503 | if (!ifp) | |
1504 | return 0; | |
1505 | ||
1506 | p.family = AF_INET; | |
1507 | p.u.prefix4 = src; | |
1508 | p.prefixlen = IPV4_MAX_BITLEN; | |
1509 | ||
1510 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, c)) { | |
1511 | if ((c->address->family == AF_INET) | |
1512 | && prefix_match(CONNECTED_PREFIX(c), &p)) { | |
1513 | return 1; | |
1514 | } | |
1515 | } | |
1516 | ||
1517 | return 0; | |
3565202d | 1518 | } |
11699c47 | 1519 | |
e55a43d4 | 1520 | bool pim_if_is_vrf_device(struct interface *ifp) |
90133de6 | 1521 | { |
e55a43d4 DS |
1522 | if (if_is_vrf(ifp)) |
1523 | return true; | |
90133de6 | 1524 | |
e55a43d4 | 1525 | return false; |
90133de6 | 1526 | } |
ad7b74c4 DS |
1527 | |
1528 | int pim_if_ifchannel_count(struct pim_interface *pim_ifp) | |
1529 | { | |
1530 | struct pim_ifchannel *ch; | |
1531 | int count = 0; | |
1532 | ||
a2addae8 | 1533 | RB_FOREACH (ch, pim_ifchannel_rb, &pim_ifp->ifchannel_rb) { |
ad7b74c4 DS |
1534 | count++; |
1535 | } | |
1536 | ||
1537 | return count; | |
1538 | } | |
138c5a74 DS |
1539 | |
1540 | int pim_ifp_create(struct interface *ifp) | |
1541 | { | |
ef7bd2a3 DS |
1542 | struct pim_instance *pim; |
1543 | ||
1544 | pim = pim_get_pim_instance(ifp->vrf_id); | |
1545 | if (PIM_DEBUG_ZEBRA) { | |
1546 | zlog_debug( | |
1547 | "%s: %s index %d(%u) flags %ld metric %d mtu %d operative %d", | |
15569c58 DA |
1548 | __func__, ifp->name, ifp->ifindex, ifp->vrf_id, |
1549 | (long)ifp->flags, ifp->metric, ifp->mtu, | |
ef7bd2a3 DS |
1550 | if_is_operative(ifp)); |
1551 | } | |
1552 | ||
1553 | if (if_is_operative(ifp)) { | |
1554 | struct pim_interface *pim_ifp; | |
1555 | ||
1556 | pim_ifp = ifp->info; | |
1557 | /* | |
1558 | * If we have a pim_ifp already and this is an if_add | |
1559 | * that means that we probably have a vrf move event | |
1560 | * If that is the case, set the proper vrfness. | |
1561 | */ | |
1562 | if (pim_ifp) | |
1563 | pim_ifp->pim = pim; | |
1564 | pim_if_addr_add_all(ifp); | |
1565 | } | |
1566 | ||
1567 | /* | |
1568 | * If we are a vrf device that is up, open up the pim_socket for | |
1569 | * listening | |
1570 | * to incoming pim messages irrelevant if the user has configured us | |
1571 | * for pim or not. | |
1572 | */ | |
1573 | if (pim_if_is_vrf_device(ifp)) { | |
1574 | struct pim_interface *pim_ifp; | |
1575 | ||
1576 | if (!ifp->info) { | |
1577 | pim_ifp = pim_if_new(ifp, false, false, false, | |
1578 | false /*vxlan_term*/); | |
1579 | ifp->info = pim_ifp; | |
1580 | } | |
1581 | ||
1582 | pim_sock_add(ifp); | |
1583 | } | |
1584 | ||
1585 | if (!strncmp(ifp->name, PIM_VXLAN_TERM_DEV_NAME, | |
1586 | sizeof(PIM_VXLAN_TERM_DEV_NAME))) | |
1587 | pim_vxlan_add_term_dev(pim, ifp); | |
1588 | ||
138c5a74 DS |
1589 | return 0; |
1590 | } | |
1591 | ||
1592 | int pim_ifp_up(struct interface *ifp) | |
1593 | { | |
85d25587 | 1594 | struct pim_interface *pim_ifp; |
ddbf3e60 DS |
1595 | struct pim_instance *pim; |
1596 | uint32_t table_id; | |
1597 | ||
1598 | if (PIM_DEBUG_ZEBRA) { | |
1599 | zlog_debug( | |
1600 | "%s: %s index %d(%u) flags %ld metric %d mtu %d operative %d", | |
15569c58 DA |
1601 | __func__, ifp->name, ifp->ifindex, ifp->vrf_id, |
1602 | (long)ifp->flags, ifp->metric, ifp->mtu, | |
ddbf3e60 DS |
1603 | if_is_operative(ifp)); |
1604 | } | |
1605 | ||
1606 | pim = pim_get_pim_instance(ifp->vrf_id); | |
ddbf3e60 | 1607 | |
85d25587 DS |
1608 | pim_ifp = ifp->info; |
1609 | /* | |
1610 | * If we have a pim_ifp already and this is an if_add | |
1611 | * that means that we probably have a vrf move event | |
1612 | * If that is the case, set the proper vrfness. | |
1613 | */ | |
1614 | if (pim_ifp) | |
1615 | pim_ifp->pim = pim; | |
ddbf3e60 | 1616 | |
85d25587 DS |
1617 | /* |
1618 | pim_if_addr_add_all() suffices for bringing up both IGMP and | |
1619 | PIM | |
1620 | */ | |
1621 | pim_if_addr_add_all(ifp); | |
ddbf3e60 DS |
1622 | |
1623 | /* | |
1624 | * If we have a pimreg device callback and it's for a specific | |
1625 | * table set the master appropriately | |
1626 | */ | |
1627 | if (sscanf(ifp->name, "pimreg%" SCNu32, &table_id) == 1) { | |
1628 | struct vrf *vrf; | |
1629 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) { | |
1630 | if ((table_id == vrf->data.l.table_id) | |
1631 | && (ifp->vrf_id != vrf->vrf_id)) { | |
1632 | struct interface *master = if_lookup_by_name( | |
1633 | vrf->name, vrf->vrf_id); | |
1634 | ||
1635 | if (!master) { | |
1636 | zlog_debug( | |
1637 | "%s: Unable to find Master interface for %s", | |
15569c58 | 1638 | __func__, vrf->name); |
ddbf3e60 DS |
1639 | return 0; |
1640 | } | |
1641 | pim_zebra_interface_set_master(master, ifp); | |
1642 | } | |
1643 | } | |
1644 | } | |
138c5a74 DS |
1645 | return 0; |
1646 | } | |
1647 | ||
1648 | int pim_ifp_down(struct interface *ifp) | |
1649 | { | |
b0b69e59 DS |
1650 | if (PIM_DEBUG_ZEBRA) { |
1651 | zlog_debug( | |
1652 | "%s: %s index %d(%u) flags %ld metric %d mtu %d operative %d", | |
15569c58 DA |
1653 | __func__, ifp->name, ifp->ifindex, ifp->vrf_id, |
1654 | (long)ifp->flags, ifp->metric, ifp->mtu, | |
b0b69e59 DS |
1655 | if_is_operative(ifp)); |
1656 | } | |
1657 | ||
1658 | if (!if_is_operative(ifp)) { | |
1659 | pim_ifchannel_delete_all(ifp); | |
1660 | /* | |
1661 | pim_if_addr_del_all() suffices for shutting down IGMP, | |
1662 | but not for shutting down PIM | |
1663 | */ | |
1664 | pim_if_addr_del_all(ifp); | |
1665 | ||
1666 | /* | |
1667 | pim_sock_delete() closes the socket, stops read and timer | |
1668 | threads, | |
1669 | and kills all neighbors. | |
1670 | */ | |
1671 | if (ifp->info) { | |
1672 | pim_sock_delete(ifp, "link down"); | |
1673 | } | |
1674 | } | |
1675 | ||
1676 | if (ifp->info) | |
1677 | pim_if_del_vif(ifp); | |
1678 | ||
138c5a74 DS |
1679 | return 0; |
1680 | } | |
1681 | ||
1682 | int pim_ifp_destroy(struct interface *ifp) | |
1683 | { | |
3c3c3252 DS |
1684 | struct pim_instance *pim; |
1685 | ||
1686 | if (PIM_DEBUG_ZEBRA) { | |
1687 | zlog_debug( | |
1688 | "%s: %s index %d(%u) flags %ld metric %d mtu %d operative %d", | |
15569c58 DA |
1689 | __func__, ifp->name, ifp->ifindex, ifp->vrf_id, |
1690 | (long)ifp->flags, ifp->metric, ifp->mtu, | |
3c3c3252 DS |
1691 | if_is_operative(ifp)); |
1692 | } | |
1693 | ||
1694 | if (!if_is_operative(ifp)) | |
1695 | pim_if_addr_del_all(ifp); | |
1696 | ||
1697 | pim = pim_get_pim_instance(ifp->vrf_id); | |
1698 | if (pim && pim->vxlan.term_if == ifp) | |
1699 | pim_vxlan_del_term_dev(pim); | |
1700 | ||
138c5a74 DS |
1701 | return 0; |
1702 | } |