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Commit | Line | Data |
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12e41d03 | 1 | /* |
896014f4 DL |
2 | * PIM for Quagga |
3 | * Copyright (C) 2008 Everton da Silva Marques | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but | |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License along | |
16 | * with this program; see the file COPYING; if not, write to the Free Software | |
17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
18 | */ | |
12e41d03 DL |
19 | |
20 | #include <zebra.h> | |
21 | ||
12e41d03 DL |
22 | #include "if.h" |
23 | #include "log.h" | |
24 | #include "prefix.h" | |
25 | #include "zclient.h" | |
26 | #include "stream.h" | |
27 | #include "network.h" | |
dfe43e25 DW |
28 | #include "vty.h" |
29 | #include "plist.h" | |
ba4eb1bc | 30 | #include "lib/bfd.h" |
12e41d03 DL |
31 | |
32 | #include "pimd.h" | |
33 | #include "pim_pim.h" | |
34 | #include "pim_zebra.h" | |
35 | #include "pim_iface.h" | |
36 | #include "pim_str.h" | |
37 | #include "pim_oil.h" | |
38 | #include "pim_rpf.h" | |
39 | #include "pim_time.h" | |
40 | #include "pim_join.h" | |
41 | #include "pim_zlookup.h" | |
42 | #include "pim_ifchannel.h" | |
8f5f5e91 | 43 | #include "pim_rp.h" |
2560106c | 44 | #include "pim_igmpv3.h" |
982bff89 | 45 | #include "pim_jp_agg.h" |
1bc98276 | 46 | #include "pim_nht.h" |
15a5dafe | 47 | #include "pim_ssm.h" |
af7b561b | 48 | #include "pim_vxlan.h" |
12e41d03 DL |
49 | |
50 | #undef PIM_DEBUG_IFADDR_DUMP | |
51 | #define PIM_DEBUG_IFADDR_DUMP | |
52 | ||
6a597223 | 53 | static struct zclient *zclient = NULL; |
38f4935a | 54 | |
12e41d03 | 55 | |
12e41d03 | 56 | /* Router-id update message from zebra. */ |
121f9dee | 57 | static int pim_router_id_update_zebra(ZAPI_CALLBACK_ARGS) |
12e41d03 | 58 | { |
d62a17ae | 59 | struct prefix router_id; |
12e41d03 | 60 | |
d62a17ae | 61 | zebra_router_id_update_read(zclient->ibuf, &router_id); |
12e41d03 | 62 | |
d62a17ae | 63 | return 0; |
12e41d03 DL |
64 | } |
65 | ||
121f9dee | 66 | static int pim_zebra_interface_vrf_update(ZAPI_CALLBACK_ARGS) |
ee568318 DS |
67 | { |
68 | struct interface *ifp; | |
69 | vrf_id_t new_vrf_id; | |
70 | ||
71 | ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id, | |
72 | &new_vrf_id); | |
73 | if (!ifp) | |
74 | return 0; | |
75 | ||
76 | if (PIM_DEBUG_ZEBRA) | |
77 | zlog_debug("%s: %s updating from %u to %u", | |
78 | __PRETTY_FUNCTION__, | |
79 | ifp->name, vrf_id, new_vrf_id); | |
80 | ||
a36898e7 | 81 | if_update_to_new_vrf(ifp, new_vrf_id); |
ee568318 DS |
82 | |
83 | return 0; | |
84 | } | |
85 | ||
12e41d03 DL |
86 | #ifdef PIM_DEBUG_IFADDR_DUMP |
87 | static void dump_if_address(struct interface *ifp) | |
88 | { | |
d62a17ae | 89 | struct connected *ifc; |
90 | struct listnode *node; | |
91 | ||
92 | zlog_debug("%s %s: interface %s addresses:", __FILE__, | |
93 | __PRETTY_FUNCTION__, ifp->name); | |
94 | ||
95 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, ifc)) { | |
96 | struct prefix *p = ifc->address; | |
97 | ||
98 | if (p->family != AF_INET) | |
99 | continue; | |
100 | ||
101 | zlog_debug("%s %s: interface %s address %s %s", __FILE__, | |
102 | __PRETTY_FUNCTION__, ifp->name, | |
103 | inet_ntoa(p->u.prefix4), | |
104 | CHECK_FLAG(ifc->flags, ZEBRA_IFA_SECONDARY) | |
105 | ? "secondary" | |
106 | : "primary"); | |
107 | } | |
12e41d03 DL |
108 | } |
109 | #endif | |
110 | ||
121f9dee | 111 | static int pim_zebra_if_address_add(ZAPI_CALLBACK_ARGS) |
12e41d03 | 112 | { |
d62a17ae | 113 | struct connected *c; |
114 | struct prefix *p; | |
115 | struct pim_interface *pim_ifp; | |
26bb1fd5 | 116 | struct pim_instance *pim; |
d62a17ae | 117 | |
118 | /* | |
119 | zebra api notifies address adds/dels events by using the same call | |
120 | interface_add_read below, see comments in lib/zclient.c | |
121 | ||
122 | zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_ADD, ...) | |
123 | will add address to interface list by calling | |
124 | connected_add_by_prefix() | |
125 | */ | |
121f9dee | 126 | c = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
d62a17ae | 127 | if (!c) |
128 | return 0; | |
129 | ||
130 | pim_ifp = c->ifp->info; | |
131 | p = c->address; | |
132 | ||
133 | if (PIM_DEBUG_ZEBRA) { | |
134 | char buf[BUFSIZ]; | |
135 | prefix2str(p, buf, BUFSIZ); | |
87ad28f4 | 136 | zlog_debug("%s: %s(%u) connected IP address %s flags %u %s", |
e0ae31b8 | 137 | __PRETTY_FUNCTION__, c->ifp->name, vrf_id, buf, |
996c9314 LB |
138 | c->flags, |
139 | CHECK_FLAG(c->flags, ZEBRA_IFA_SECONDARY) | |
140 | ? "secondary" | |
141 | : "primary"); | |
d62a17ae | 142 | |
12e41d03 | 143 | #ifdef PIM_DEBUG_IFADDR_DUMP |
d62a17ae | 144 | dump_if_address(c->ifp); |
12e41d03 | 145 | #endif |
d62a17ae | 146 | } |
12e41d03 | 147 | |
d62a17ae | 148 | if (!CHECK_FLAG(c->flags, ZEBRA_IFA_SECONDARY)) { |
149 | /* trying to add primary address */ | |
12e41d03 | 150 | |
d62a17ae | 151 | struct in_addr primary_addr = pim_find_primary_addr(c->ifp); |
152 | if (p->family != AF_INET | |
153 | || primary_addr.s_addr != p->u.prefix4.s_addr) { | |
154 | if (PIM_DEBUG_ZEBRA) { | |
155 | /* but we had a primary address already */ | |
12e41d03 | 156 | |
d62a17ae | 157 | char buf[BUFSIZ]; |
12e41d03 | 158 | |
d62a17ae | 159 | prefix2str(p, buf, BUFSIZ); |
12e41d03 | 160 | |
d62a17ae | 161 | zlog_warn( |
162 | "%s: %s : forcing secondary flag on %s", | |
163 | __PRETTY_FUNCTION__, c->ifp->name, buf); | |
164 | } | |
165 | SET_FLAG(c->flags, ZEBRA_IFA_SECONDARY); | |
166 | } | |
167 | } | |
12e41d03 | 168 | |
d62a17ae | 169 | pim_if_addr_add(c); |
26bb1fd5 DS |
170 | if (pim_ifp) { |
171 | pim = pim_get_pim_instance(vrf_id); | |
172 | pim_ifp->pim = pim; | |
173 | ||
d62a17ae | 174 | pim_rp_check_on_if_add(pim_ifp); |
26bb1fd5 | 175 | } |
12e41d03 | 176 | |
d62a17ae | 177 | if (if_is_loopback(c->ifp)) { |
f4e14fdb | 178 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 179 | struct interface *ifp; |
d8424057 | 180 | |
451fda4f | 181 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 182 | if (!if_is_loopback(ifp) && if_is_operative(ifp)) |
183 | pim_if_addr_add_all(ifp); | |
184 | } | |
185 | } | |
d8424057 | 186 | |
d62a17ae | 187 | return 0; |
12e41d03 DL |
188 | } |
189 | ||
121f9dee | 190 | static int pim_zebra_if_address_del(ZAPI_CALLBACK_ARGS) |
12e41d03 | 191 | { |
d62a17ae | 192 | struct connected *c; |
193 | struct prefix *p; | |
fec883d9 | 194 | struct vrf *vrf = vrf_lookup_by_id(vrf_id); |
819f099b DS |
195 | struct pim_instance *pim; |
196 | ||
197 | if (!vrf) | |
198 | return 0; | |
199 | pim = vrf->info; | |
d62a17ae | 200 | |
201 | /* | |
202 | zebra api notifies address adds/dels events by using the same call | |
203 | interface_add_read below, see comments in lib/zclient.c | |
204 | ||
205 | zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_DELETE, ...) | |
206 | will remove address from interface list by calling | |
207 | connected_delete_by_prefix() | |
208 | */ | |
121f9dee | 209 | c = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
d62a17ae | 210 | if (!c) |
211 | return 0; | |
212 | ||
213 | p = c->address; | |
214 | if (p->family == AF_INET) { | |
215 | if (PIM_DEBUG_ZEBRA) { | |
216 | char buf[BUFSIZ]; | |
217 | prefix2str(p, buf, BUFSIZ); | |
218 | zlog_debug( | |
87ad28f4 | 219 | "%s: %s(%u) disconnected IP address %s flags %u %s", |
e0ae31b8 | 220 | __PRETTY_FUNCTION__, c->ifp->name, vrf_id, buf, |
d62a17ae | 221 | c->flags, |
222 | CHECK_FLAG(c->flags, ZEBRA_IFA_SECONDARY) | |
223 | ? "secondary" | |
224 | : "primary"); | |
6233f087 | 225 | |
12e41d03 | 226 | #ifdef PIM_DEBUG_IFADDR_DUMP |
d62a17ae | 227 | dump_if_address(c->ifp); |
12e41d03 | 228 | #endif |
d62a17ae | 229 | } |
12e41d03 | 230 | |
d62a17ae | 231 | pim_if_addr_del(c, 0); |
fec883d9 DS |
232 | pim_rp_setup(pim); |
233 | pim_i_am_rp_re_evaluate(pim); | |
d62a17ae | 234 | } |
6233f087 | 235 | |
721c0857 | 236 | connected_free(&c); |
d62a17ae | 237 | return 0; |
12e41d03 DL |
238 | } |
239 | ||
74389231 DS |
240 | void pim_zebra_update_all_interfaces(struct pim_instance *pim) |
241 | { | |
242 | struct interface *ifp; | |
243 | ||
244 | FOR_ALL_INTERFACES (pim->vrf, ifp) { | |
245 | struct pim_interface *pim_ifp = ifp->info; | |
246 | struct pim_iface_upstream_switch *us; | |
247 | struct listnode *node; | |
248 | ||
249 | if (!pim_ifp) | |
250 | continue; | |
251 | ||
252 | for (ALL_LIST_ELEMENTS_RO(pim_ifp->upstream_switch_list, node, | |
253 | us)) { | |
254 | struct pim_rpf rpf; | |
255 | ||
256 | rpf.source_nexthop.interface = ifp; | |
257 | rpf.rpf_addr.u.prefix4 = us->address; | |
258 | pim_joinprune_send(&rpf, us->us); | |
259 | pim_jp_agg_clear_group(us->us); | |
260 | } | |
261 | } | |
262 | } | |
263 | ||
cc67ccf9 DS |
264 | void pim_zebra_upstream_rpf_changed(struct pim_instance *pim, |
265 | struct pim_upstream *up, | |
266 | struct pim_rpf *old) | |
267 | { | |
1250cb5d SP |
268 | if (old->source_nexthop.interface) { |
269 | struct pim_neighbor *nbr; | |
cc67ccf9 | 270 | |
1250cb5d SP |
271 | nbr = pim_neighbor_find(old->source_nexthop.interface, |
272 | old->rpf_addr.u.prefix4); | |
273 | if (nbr) | |
274 | pim_jp_agg_remove_group(nbr->upstream_jp_agg, up); | |
cc67ccf9 | 275 | |
cc67ccf9 | 276 | /* |
1250cb5d SP |
277 | * We have detected a case where we might need |
278 | * to rescan the inherited o_list so do it. | |
cc67ccf9 | 279 | */ |
1250cb5d SP |
280 | if (up->channel_oil->oil_inherited_rescan) { |
281 | pim_upstream_inherited_olist_decide(pim, up); | |
282 | up->channel_oil->oil_inherited_rescan = 0; | |
283 | } | |
cc67ccf9 | 284 | |
1250cb5d SP |
285 | if (up->join_state == PIM_UPSTREAM_JOINED) { |
286 | /* | |
287 | * If we come up real fast we can be here | |
288 | * where the mroute has not been installed | |
289 | * so install it. | |
290 | */ | |
291 | if (!up->channel_oil->installed) | |
69e3538c | 292 | pim_upstream_mroute_add(up->channel_oil, |
1250cb5d SP |
293 | __PRETTY_FUNCTION__); |
294 | ||
295 | /* | |
296 | * RFC 4601: 4.5.7. Sending (S,G) | |
297 | * Join/Prune Messages | |
298 | * | |
299 | * Transitions from Joined State | |
300 | * | |
301 | * RPF'(S,G) changes not due to an Assert | |
302 | * | |
303 | * The upstream (S,G) state machine remains | |
304 | * in Joined state. Send Join(S,G) to the new | |
305 | * upstream neighbor, which is the new value | |
306 | * of RPF'(S,G). Send Prune(S,G) to the old | |
307 | * upstream neighbor, which is the old value | |
308 | * of RPF'(S,G). Set the Join Timer (JT) to | |
309 | * expire after t_periodic seconds. | |
310 | */ | |
311 | pim_jp_agg_switch_interface(old, &up->rpf, up); | |
312 | ||
313 | pim_upstream_join_timer_restart(up, old); | |
314 | } /* up->join_state == PIM_UPSTREAM_JOINED */ | |
315 | } | |
316 | ||
317 | else { | |
cc67ccf9 | 318 | /* |
1250cb5d SP |
319 | * We have detected a case where we might need |
320 | * to rescan the inherited o_list so do it. | |
cc67ccf9 | 321 | */ |
1250cb5d SP |
322 | if (up->channel_oil->oil_inherited_rescan) { |
323 | pim_upstream_inherited_olist_decide(pim, up); | |
324 | up->channel_oil->oil_inherited_rescan = 0; | |
325 | } | |
cc67ccf9 | 326 | |
1250cb5d | 327 | if (!up->channel_oil->installed) |
69e3538c AK |
328 | pim_upstream_mroute_add(up->channel_oil, |
329 | __PRETTY_FUNCTION__); | |
1250cb5d | 330 | } |
cc67ccf9 | 331 | |
1250cb5d SP |
332 | /* FIXME can join_desired actually be changed by pim_rpf_update() |
333 | * returning PIM_RPF_CHANGED ? | |
334 | */ | |
cc67ccf9 DS |
335 | pim_upstream_update_join_desired(pim, up); |
336 | } | |
337 | ||
121f9dee | 338 | static int pim_zebra_vxlan_sg_proc(ZAPI_CALLBACK_ARGS) |
af7b561b AK |
339 | { |
340 | struct stream *s; | |
341 | struct pim_instance *pim; | |
342 | struct prefix_sg sg; | |
343 | ||
344 | pim = pim_get_pim_instance(vrf_id); | |
345 | if (!pim) | |
346 | return 0; | |
347 | ||
348 | s = zclient->ibuf; | |
349 | ||
350 | sg.family = AF_INET; | |
351 | sg.prefixlen = stream_getl(s); | |
352 | stream_get(&sg.src.s_addr, s, sg.prefixlen); | |
353 | stream_get(&sg.grp.s_addr, s, sg.prefixlen); | |
354 | ||
355 | if (PIM_DEBUG_ZEBRA) { | |
356 | char sg_str[PIM_SG_LEN]; | |
357 | ||
358 | pim_str_sg_set(&sg, sg_str); | |
359 | zlog_debug("%u:recv SG %s %s", vrf_id, | |
121f9dee | 360 | (cmd == ZEBRA_VXLAN_SG_ADD)?"add":"del", |
af7b561b AK |
361 | sg_str); |
362 | } | |
363 | ||
121f9dee | 364 | if (cmd == ZEBRA_VXLAN_SG_ADD) |
af7b561b AK |
365 | pim_vxlan_sg_add(pim, &sg); |
366 | else | |
367 | pim_vxlan_sg_del(pim, &sg); | |
368 | ||
369 | return 0; | |
370 | } | |
371 | ||
ecbbc3a7 AK |
372 | static void pim_zebra_vxlan_replay(void) |
373 | { | |
374 | struct stream *s = NULL; | |
375 | ||
376 | /* Check socket. */ | |
377 | if (!zclient || zclient->sock < 0) | |
378 | return; | |
379 | ||
380 | s = zclient->obuf; | |
381 | stream_reset(s); | |
382 | ||
383 | zclient_create_header(s, ZEBRA_VXLAN_SG_REPLAY, VRF_DEFAULT); | |
384 | stream_putw_at(s, 0, stream_get_endp(s)); | |
385 | ||
386 | zclient_send_message(zclient); | |
387 | } | |
388 | ||
d62a17ae | 389 | void pim_scan_individual_oil(struct channel_oil *c_oil, int in_vif_index) |
12e41d03 | 390 | { |
d62a17ae | 391 | struct in_addr vif_source; |
392 | int input_iface_vif_index; | |
d62a17ae | 393 | |
732c209c | 394 | pim_rp_set_upstream_addr(c_oil->pim, &vif_source, |
d9c9a9ee | 395 | c_oil->oil.mfcc_origin, |
732c209c | 396 | c_oil->oil.mfcc_mcastgrp); |
d62a17ae | 397 | |
398 | if (in_vif_index) | |
399 | input_iface_vif_index = in_vif_index; | |
400 | else { | |
401 | struct prefix src, grp; | |
402 | ||
403 | src.family = AF_INET; | |
404 | src.prefixlen = IPV4_MAX_BITLEN; | |
405 | src.u.prefix4 = vif_source; | |
406 | grp.family = AF_INET; | |
407 | grp.prefixlen = IPV4_MAX_BITLEN; | |
408 | grp.u.prefix4 = c_oil->oil.mfcc_mcastgrp; | |
409 | ||
410 | if (PIM_DEBUG_ZEBRA) { | |
411 | char source_str[INET_ADDRSTRLEN]; | |
412 | char group_str[INET_ADDRSTRLEN]; | |
413 | pim_inet4_dump("<source?>", c_oil->oil.mfcc_origin, | |
414 | source_str, sizeof(source_str)); | |
415 | pim_inet4_dump("<group?>", c_oil->oil.mfcc_mcastgrp, | |
416 | group_str, sizeof(group_str)); | |
417 | zlog_debug( | |
a895ac30 | 418 | "%s: channel_oil (%s,%s) upstream info is not present.", |
d62a17ae | 419 | __PRETTY_FUNCTION__, source_str, group_str); |
420 | } | |
421 | input_iface_vif_index = pim_ecmp_fib_lookup_if_vif_index( | |
b938537b | 422 | c_oil->pim, &src, &grp); |
d62a17ae | 423 | } |
424 | ||
425 | if (input_iface_vif_index < 1) { | |
426 | if (PIM_DEBUG_ZEBRA) { | |
427 | char source_str[INET_ADDRSTRLEN]; | |
428 | char group_str[INET_ADDRSTRLEN]; | |
429 | pim_inet4_dump("<source?>", c_oil->oil.mfcc_origin, | |
430 | source_str, sizeof(source_str)); | |
431 | pim_inet4_dump("<group?>", c_oil->oil.mfcc_mcastgrp, | |
432 | group_str, sizeof(group_str)); | |
433 | zlog_debug( | |
434 | "%s %s: could not find input interface(%d) for (S,G)=(%s,%s)", | |
435 | __FILE__, __PRETTY_FUNCTION__, | |
436 | c_oil->oil.mfcc_parent, source_str, group_str); | |
437 | } | |
438 | pim_mroute_del(c_oil, __PRETTY_FUNCTION__); | |
439 | return; | |
440 | } | |
441 | ||
442 | if (input_iface_vif_index == c_oil->oil.mfcc_parent) { | |
443 | if (!c_oil->installed) | |
69e3538c | 444 | pim_upstream_mroute_add(c_oil, __PRETTY_FUNCTION__); |
d62a17ae | 445 | |
446 | /* RPF unchanged */ | |
447 | return; | |
448 | } | |
449 | ||
450 | if (PIM_DEBUG_ZEBRA) { | |
7cfc7bcf DS |
451 | struct interface *old_iif = pim_if_find_by_vif_index( |
452 | c_oil->pim, c_oil->oil.mfcc_parent); | |
453 | struct interface *new_iif = pim_if_find_by_vif_index( | |
454 | c_oil->pim, input_iface_vif_index); | |
d62a17ae | 455 | char source_str[INET_ADDRSTRLEN]; |
456 | char group_str[INET_ADDRSTRLEN]; | |
457 | pim_inet4_dump("<source?>", c_oil->oil.mfcc_origin, source_str, | |
458 | sizeof(source_str)); | |
459 | pim_inet4_dump("<group?>", c_oil->oil.mfcc_mcastgrp, group_str, | |
460 | sizeof(group_str)); | |
461 | zlog_debug( | |
462 | "%s %s: (S,G)=(%s,%s) input interface changed from %s vif_index=%d to %s vif_index=%d", | |
463 | __FILE__, __PRETTY_FUNCTION__, source_str, group_str, | |
97f03dde DS |
464 | (old_iif) ? old_iif->name : "<old_iif?>", |
465 | c_oil->oil.mfcc_parent, | |
466 | (new_iif) ? new_iif->name : "<new_iif?>", | |
d62a17ae | 467 | input_iface_vif_index); |
468 | } | |
469 | ||
470 | /* new iif loops to existing oif ? */ | |
471 | if (c_oil->oil.mfcc_ttls[input_iface_vif_index]) { | |
7cfc7bcf DS |
472 | struct interface *new_iif = pim_if_find_by_vif_index( |
473 | c_oil->pim, input_iface_vif_index); | |
d62a17ae | 474 | |
475 | if (PIM_DEBUG_ZEBRA) { | |
476 | char source_str[INET_ADDRSTRLEN]; | |
477 | char group_str[INET_ADDRSTRLEN]; | |
478 | pim_inet4_dump("<source?>", c_oil->oil.mfcc_origin, | |
479 | source_str, sizeof(source_str)); | |
480 | pim_inet4_dump("<group?>", c_oil->oil.mfcc_mcastgrp, | |
481 | group_str, sizeof(group_str)); | |
482 | zlog_debug( | |
483 | "%s %s: (S,G)=(%s,%s) new iif loops to existing oif: %s vif_index=%d", | |
484 | __FILE__, __PRETTY_FUNCTION__, source_str, | |
97f03dde DS |
485 | group_str, |
486 | (new_iif) ? new_iif->name : "<new_iif?>", | |
d62a17ae | 487 | input_iface_vif_index); |
488 | } | |
489 | } | |
490 | ||
491 | /* update iif vif_index */ | |
afb2f470 DS |
492 | pim_channel_oil_change_iif(c_oil->pim, c_oil, input_iface_vif_index, |
493 | __PRETTY_FUNCTION__); | |
69e3538c | 494 | pim_upstream_mroute_add(c_oil, __PRETTY_FUNCTION__); |
8a67a996 DS |
495 | } |
496 | ||
da11e325 | 497 | void pim_scan_oil(struct pim_instance *pim) |
8a67a996 | 498 | { |
d62a17ae | 499 | struct listnode *node; |
500 | struct listnode *nextnode; | |
501 | struct channel_oil *c_oil; | |
502 | ifindex_t ifindex; | |
503 | int vif_index = 0; | |
504 | ||
bfc92019 DS |
505 | pim->scan_oil_last = pim_time_monotonic_sec(); |
506 | ++pim->scan_oil_events; | |
d62a17ae | 507 | |
da11e325 DS |
508 | for (ALL_LIST_ELEMENTS(pim->channel_oil_list, node, nextnode, c_oil)) { |
509 | if (c_oil->up && c_oil->up->rpf.source_nexthop.interface) { | |
510 | ifindex = c_oil->up->rpf.source_nexthop | |
511 | .interface->ifindex; | |
512 | vif_index = | |
513 | pim_if_find_vifindex_by_ifindex(pim, ifindex); | |
514 | /* Pass Current selected NH vif index to mroute | |
515 | * download */ | |
516 | if (vif_index) | |
517 | pim_scan_individual_oil(c_oil, vif_index); | |
518 | } else | |
519 | pim_scan_individual_oil(c_oil, 0); | |
d62a17ae | 520 | } |
12e41d03 DL |
521 | } |
522 | ||
523 | static int on_rpf_cache_refresh(struct thread *t) | |
524 | { | |
da11e325 DS |
525 | struct pim_instance *pim = THREAD_ARG(t); |
526 | ||
d62a17ae | 527 | /* update kernel multicast forwarding cache (MFC) */ |
da11e325 | 528 | pim_scan_oil(pim); |
12e41d03 | 529 | |
bfc92019 DS |
530 | pim->rpf_cache_refresh_last = pim_time_monotonic_sec(); |
531 | ++pim->rpf_cache_refresh_events; | |
12e41d03 | 532 | |
d62a17ae | 533 | // It is called as part of pim_neighbor_add |
534 | // pim_rp_setup (); | |
535 | return 0; | |
12e41d03 DL |
536 | } |
537 | ||
da11e325 | 538 | void sched_rpf_cache_refresh(struct pim_instance *pim) |
12e41d03 | 539 | { |
bfc92019 | 540 | ++pim->rpf_cache_refresh_requests; |
12e41d03 | 541 | |
bfc92019 | 542 | pim_rpf_set_refresh_time(pim); |
e71bf8f7 | 543 | |
da11e325 | 544 | if (pim->rpf_cache_refresher) { |
d62a17ae | 545 | /* Refresh timer is already running */ |
546 | return; | |
547 | } | |
12e41d03 | 548 | |
d62a17ae | 549 | /* Start refresh timer */ |
12e41d03 | 550 | |
d62a17ae | 551 | if (PIM_DEBUG_ZEBRA) { |
552 | zlog_debug("%s: triggering %ld msec timer", __PRETTY_FUNCTION__, | |
da03883e | 553 | router->rpf_cache_refresh_delay_msec); |
d62a17ae | 554 | } |
12e41d03 | 555 | |
36417fcc | 556 | thread_add_timer_msec(router->master, on_rpf_cache_refresh, pim, |
da03883e | 557 | router->rpf_cache_refresh_delay_msec, |
da11e325 | 558 | &pim->rpf_cache_refresher); |
12e41d03 DL |
559 | } |
560 | ||
d62a17ae | 561 | static void pim_zebra_connected(struct zclient *zclient) |
48e8451b | 562 | { |
d62a17ae | 563 | /* Send the client registration */ |
0945d5ed | 564 | bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER, router->vrf_id); |
ba4eb1bc | 565 | |
4dfe9ad2 | 566 | zclient_send_reg_requests(zclient, router->vrf_id); |
ecbbc3a7 AK |
567 | |
568 | /* request for VxLAN BUM group addresses */ | |
569 | pim_zebra_vxlan_replay(); | |
48e8451b | 570 | } |
8711a53d | 571 | |
ac567a6f DS |
572 | static void pim_zebra_capabilities(struct zclient_capabilities *cap) |
573 | { | |
d6749d74 | 574 | router->role = cap->role; |
ac567a6f DS |
575 | } |
576 | ||
eb05883f | 577 | void pim_zebra_init(void) |
12e41d03 | 578 | { |
d62a17ae | 579 | /* Socket for receiving updates from Zebra daemon */ |
36417fcc | 580 | zclient = zclient_new(router->master, &zclient_options_default); |
d62a17ae | 581 | |
ac567a6f | 582 | zclient->zebra_capabilities = pim_zebra_capabilities; |
d62a17ae | 583 | zclient->zebra_connected = pim_zebra_connected; |
584 | zclient->router_id_update = pim_router_id_update_zebra; | |
d62a17ae | 585 | zclient->interface_address_add = pim_zebra_if_address_add; |
586 | zclient->interface_address_delete = pim_zebra_if_address_del; | |
ee568318 | 587 | zclient->interface_vrf_update = pim_zebra_interface_vrf_update; |
d62a17ae | 588 | zclient->nexthop_update = pim_parse_nexthop_update; |
af7b561b AK |
589 | zclient->vxlan_sg_add = pim_zebra_vxlan_sg_proc; |
590 | zclient->vxlan_sg_del = pim_zebra_vxlan_sg_proc; | |
d62a17ae | 591 | |
342213ea | 592 | zclient_init(zclient, ZEBRA_ROUTE_PIM, 0, &pimd_privs); |
d62a17ae | 593 | if (PIM_DEBUG_PIM_TRACE) { |
87270023 | 594 | zlog_notice("%s: zclient socket initialized", |
d62a17ae | 595 | __PRETTY_FUNCTION__); |
596 | } | |
597 | ||
598 | zclient_lookup_new(); | |
12e41d03 DL |
599 | } |
600 | ||
6f932b0c DS |
601 | void igmp_anysource_forward_start(struct pim_instance *pim, |
602 | struct igmp_group *group) | |
12e41d03 | 603 | { |
d62a17ae | 604 | struct igmp_source *source; |
605 | struct in_addr src_addr = {.s_addr = 0}; | |
606 | /* Any source (*,G) is forwarded only if mode is EXCLUDE {empty} */ | |
607 | zassert(group->group_filtermode_isexcl); | |
608 | zassert(listcount(group->group_source_list) < 1); | |
609 | ||
610 | source = source_new(group, src_addr); | |
611 | if (!source) { | |
612 | zlog_warn("%s: Failure to create * source", | |
613 | __PRETTY_FUNCTION__); | |
614 | return; | |
615 | } | |
616 | ||
6f932b0c | 617 | igmp_source_forward_start(pim, source); |
12e41d03 DL |
618 | } |
619 | ||
620 | void igmp_anysource_forward_stop(struct igmp_group *group) | |
621 | { | |
d62a17ae | 622 | struct igmp_source *source; |
623 | struct in_addr star = {.s_addr = 0}; | |
12e41d03 | 624 | |
d62a17ae | 625 | source = igmp_find_source_by_addr(group, star); |
626 | if (source) | |
627 | igmp_source_forward_stop(source); | |
12e41d03 DL |
628 | } |
629 | ||
6f439a70 DS |
630 | static void igmp_source_forward_reevaluate_one(struct pim_instance *pim, |
631 | struct igmp_source *source) | |
15a5dafe | 632 | { |
d62a17ae | 633 | struct prefix_sg sg; |
634 | struct igmp_group *group = source->source_group; | |
635 | struct pim_ifchannel *ch; | |
636 | ||
637 | if ((source->source_addr.s_addr != INADDR_ANY) | |
638 | || !IGMP_SOURCE_TEST_FORWARDING(source->source_flags)) | |
639 | return; | |
640 | ||
641 | memset(&sg, 0, sizeof(struct prefix_sg)); | |
642 | sg.src = source->source_addr; | |
643 | sg.grp = group->group_addr; | |
644 | ||
645 | ch = pim_ifchannel_find(group->group_igmp_sock->interface, &sg); | |
6f439a70 | 646 | if (pim_is_grp_ssm(pim, group->group_addr)) { |
d62a17ae | 647 | /* If SSM group withdraw local membership */ |
648 | if (ch | |
649 | && (ch->local_ifmembership == PIM_IFMEMBERSHIP_INCLUDE)) { | |
650 | if (PIM_DEBUG_PIM_EVENTS) | |
651 | zlog_debug( | |
652 | "local membership del for %s as G is now SSM", | |
653 | pim_str_sg_dump(&sg)); | |
654 | pim_ifchannel_local_membership_del( | |
655 | group->group_igmp_sock->interface, &sg); | |
656 | } | |
657 | } else { | |
658 | /* If ASM group add local membership */ | |
659 | if (!ch | |
660 | || (ch->local_ifmembership == PIM_IFMEMBERSHIP_NOINFO)) { | |
661 | if (PIM_DEBUG_PIM_EVENTS) | |
662 | zlog_debug( | |
663 | "local membership add for %s as G is now ASM", | |
664 | pim_str_sg_dump(&sg)); | |
665 | pim_ifchannel_local_membership_add( | |
666 | group->group_igmp_sock->interface, &sg); | |
667 | } | |
668 | } | |
15a5dafe | 669 | } |
670 | ||
5d59e408 | 671 | void igmp_source_forward_reevaluate_all(struct pim_instance *pim) |
15a5dafe | 672 | { |
d62a17ae | 673 | struct interface *ifp; |
674 | ||
5d59e408 DS |
675 | FOR_ALL_INTERFACES (pim->vrf, ifp) { |
676 | struct pim_interface *pim_ifp = ifp->info; | |
677 | struct listnode *sock_node; | |
678 | struct igmp_sock *igmp; | |
679 | ||
680 | if (!pim_ifp) | |
d62a17ae | 681 | continue; |
682 | ||
5d59e408 DS |
683 | /* scan igmp sockets */ |
684 | for (ALL_LIST_ELEMENTS_RO(pim_ifp->igmp_socket_list, sock_node, | |
685 | igmp)) { | |
686 | struct listnode *grpnode; | |
687 | struct igmp_group *grp; | |
688 | ||
689 | /* scan igmp groups */ | |
690 | for (ALL_LIST_ELEMENTS_RO(igmp->igmp_group_list, | |
691 | grpnode, grp)) { | |
692 | struct listnode *srcnode; | |
693 | struct igmp_source *src; | |
694 | ||
695 | /* scan group sources */ | |
696 | for (ALL_LIST_ELEMENTS_RO( | |
697 | grp->group_source_list, srcnode, | |
698 | src)) { | |
699 | igmp_source_forward_reevaluate_one(pim, | |
700 | src); | |
701 | } /* scan group sources */ | |
702 | } /* scan igmp groups */ | |
703 | } /* scan igmp sockets */ | |
704 | } /* scan interfaces */ | |
15a5dafe | 705 | } |
706 | ||
6f932b0c DS |
707 | void igmp_source_forward_start(struct pim_instance *pim, |
708 | struct igmp_source *source) | |
12e41d03 | 709 | { |
75c61a18 | 710 | struct pim_interface *pim_oif; |
d62a17ae | 711 | struct igmp_group *group; |
712 | struct prefix_sg sg; | |
713 | int result; | |
714 | int input_iface_vif_index = 0; | |
715 | ||
716 | memset(&sg, 0, sizeof(struct prefix_sg)); | |
717 | sg.src = source->source_addr; | |
718 | sg.grp = source->source_group->group_addr; | |
719 | ||
720 | if (PIM_DEBUG_IGMP_TRACE) { | |
721 | zlog_debug( | |
722 | "%s: (S,G)=%s igmp_sock=%d oif=%s fwd=%d", | |
723 | __PRETTY_FUNCTION__, pim_str_sg_dump(&sg), | |
724 | source->source_group->group_igmp_sock->fd, | |
725 | source->source_group->group_igmp_sock->interface->name, | |
726 | IGMP_SOURCE_TEST_FORWARDING(source->source_flags)); | |
727 | } | |
728 | ||
729 | /* Prevent IGMP interface from installing multicast route multiple | |
730 | times */ | |
731 | if (IGMP_SOURCE_TEST_FORWARDING(source->source_flags)) { | |
732 | return; | |
8711a53d | 733 | } |
d62a17ae | 734 | |
735 | group = source->source_group; | |
75c61a18 DS |
736 | pim_oif = group->group_igmp_sock->interface->info; |
737 | if (!pim_oif) { | |
738 | if (PIM_DEBUG_IGMP_TRACE) { | |
739 | zlog_debug( | |
740 | "%s: multicast not enabled on oif=%s ?", | |
741 | __PRETTY_FUNCTION__, | |
742 | source->source_group->group_igmp_sock | |
743 | ->interface->name); | |
744 | } | |
745 | return; | |
746 | } | |
d62a17ae | 747 | |
748 | if (!source->source_channel_oil) { | |
749 | struct in_addr vif_source; | |
d1a1b09c | 750 | struct prefix src, grp; |
d62a17ae | 751 | struct pim_nexthop nexthop; |
752 | struct pim_upstream *up = NULL; | |
753 | ||
6f932b0c | 754 | if (!pim_rp_set_upstream_addr(pim, &vif_source, |
732c209c SP |
755 | source->source_addr, sg.grp)) { |
756 | /*Create a dummy channel oil */ | |
8a3e7e9e DS |
757 | source->source_channel_oil = pim_channel_oil_add( |
758 | pim, &sg, MAXVIFS, __PRETTY_FUNCTION__); | |
732c209c | 759 | } |
d62a17ae | 760 | |
732c209c | 761 | else { |
732c209c SP |
762 | src.family = AF_INET; |
763 | src.prefixlen = IPV4_MAX_BITLEN; | |
764 | src.u.prefix4 = vif_source; // RP or Src address | |
765 | grp.family = AF_INET; | |
766 | grp.prefixlen = IPV4_MAX_BITLEN; | |
767 | grp.u.prefix4 = sg.grp; | |
768 | ||
43763b11 DS |
769 | up = pim_upstream_find(pim, &sg); |
770 | if (up) { | |
771 | memcpy(&nexthop, &up->rpf.source_nexthop, | |
772 | sizeof(struct pim_nexthop)); | |
773 | pim_ecmp_nexthop_lookup(pim, &nexthop, &src, | |
774 | &grp, 0); | |
775 | if (nexthop.interface) | |
776 | input_iface_vif_index = | |
d62a17ae | 777 | pim_if_find_vifindex_by_ifindex( |
43763b11 DS |
778 | pim, |
779 | nexthop.interface->ifindex); | |
732c209c SP |
780 | } else |
781 | input_iface_vif_index = | |
43763b11 DS |
782 | pim_ecmp_fib_lookup_if_vif_index( |
783 | pim, &src, &grp); | |
d62a17ae | 784 | |
732c209c SP |
785 | if (PIM_DEBUG_ZEBRA) { |
786 | char buf2[INET_ADDRSTRLEN]; | |
d62a17ae | 787 | |
732c209c SP |
788 | pim_inet4_dump("<source?>", vif_source, buf2, |
789 | sizeof(buf2)); | |
790 | zlog_debug("%s: NHT %s vif_source %s vif_index:%d ", | |
d62a17ae | 791 | __PRETTY_FUNCTION__, |
792 | pim_str_sg_dump(&sg), | |
732c209c | 793 | buf2, input_iface_vif_index); |
d62a17ae | 794 | } |
d62a17ae | 795 | |
732c209c SP |
796 | if (input_iface_vif_index < 1) { |
797 | if (PIM_DEBUG_IGMP_TRACE) { | |
798 | char source_str[INET_ADDRSTRLEN]; | |
799 | pim_inet4_dump("<source?>", | |
800 | source->source_addr, | |
801 | source_str, sizeof(source_str)); | |
802 | zlog_debug( | |
803 | "%s %s: could not find input interface for source %s", | |
804 | __FILE__, __PRETTY_FUNCTION__, | |
805 | source_str); | |
806 | } | |
807 | source->source_channel_oil = | |
8a3e7e9e DS |
808 | pim_channel_oil_add( |
809 | pim, &sg, MAXVIFS, | |
810 | __PRETTY_FUNCTION__); | |
732c209c SP |
811 | } |
812 | ||
813 | else { | |
814 | /* | |
815 | * Protect IGMP against adding looped MFC | |
816 | * entries created by both source and receiver | |
817 | * attached to the same interface. See TODO | |
50d06d9e | 818 | * T22. Block only when the intf is non DR |
819 | * DR must create upstream. | |
732c209c | 820 | */ |
50d06d9e | 821 | if ((input_iface_vif_index == |
822 | pim_oif->mroute_vif_index) && | |
823 | !(PIM_I_am_DR(pim_oif))) { | |
732c209c SP |
824 | /* ignore request for looped MFC entry |
825 | */ | |
826 | if (PIM_DEBUG_IGMP_TRACE) { | |
827 | zlog_debug( | |
828 | "%s: ignoring request for looped MFC entry (S,G)=%s: igmp_sock=%d oif=%s vif_index=%d", | |
829 | __PRETTY_FUNCTION__, | |
830 | pim_str_sg_dump(&sg), | |
831 | source->source_group | |
832 | ->group_igmp_sock->fd, | |
833 | source->source_group | |
834 | ->group_igmp_sock | |
835 | ->interface->name, | |
836 | input_iface_vif_index); | |
837 | } | |
838 | return; | |
839 | } | |
840 | ||
841 | source->source_channel_oil = | |
8a3e7e9e DS |
842 | pim_channel_oil_add( |
843 | pim, &sg, input_iface_vif_index, | |
844 | __PRETTY_FUNCTION__); | |
732c209c SP |
845 | if (!source->source_channel_oil) { |
846 | if (PIM_DEBUG_IGMP_TRACE) { | |
847 | zlog_debug( | |
848 | "%s %s: could not create OIL for channel (S,G)=%s", | |
849 | __FILE__, | |
850 | __PRETTY_FUNCTION__, | |
851 | pim_str_sg_dump(&sg)); | |
852 | } | |
853 | return; | |
854 | } | |
d62a17ae | 855 | } |
d62a17ae | 856 | } |
8711a53d | 857 | } |
d62a17ae | 858 | |
8e389ea9 DS |
859 | if (PIM_I_am_DR(pim_oif)) { |
860 | result = pim_channel_add_oif(source->source_channel_oil, | |
861 | group->group_igmp_sock->interface, | |
1b249e70 | 862 | PIM_OIF_FLAG_PROTO_IGMP, __func__); |
8e389ea9 DS |
863 | if (result) { |
864 | if (PIM_DEBUG_MROUTE) { | |
865 | zlog_warn("%s: add_oif() failed with return=%d", | |
866 | __func__, result); | |
867 | } | |
868 | return; | |
d62a17ae | 869 | } |
8e389ea9 | 870 | } else { |
90a084e4 DS |
871 | if (PIM_DEBUG_IGMP_TRACE) |
872 | zlog_debug("%s: %s was received on %s interface but we are not DR for that interface", | |
873 | __PRETTY_FUNCTION__, | |
874 | pim_str_sg_dump(&sg), | |
875 | group->group_igmp_sock->interface->name); | |
b96892db | 876 | |
75c61a18 | 877 | return; |
90a084e4 | 878 | } |
d62a17ae | 879 | /* |
880 | Feed IGMPv3-gathered local membership information into PIM | |
881 | per-interface (S,G) state. | |
882 | */ | |
883 | if (!pim_ifchannel_local_membership_add( | |
75c61a18 | 884 | group->group_igmp_sock->interface, &sg)) { |
d62a17ae | 885 | if (PIM_DEBUG_MROUTE) |
886 | zlog_warn("%s: Failure to add local membership for %s", | |
887 | __PRETTY_FUNCTION__, pim_str_sg_dump(&sg)); | |
b96892db DS |
888 | |
889 | pim_channel_del_oif(source->source_channel_oil, | |
890 | group->group_igmp_sock->interface, | |
1b249e70 | 891 | PIM_OIF_FLAG_PROTO_IGMP, __func__); |
d62a17ae | 892 | return; |
893 | } | |
894 | ||
895 | IGMP_SOURCE_DO_FORWARDING(source->source_flags); | |
12e41d03 DL |
896 | } |
897 | ||
898 | /* | |
899 | igmp_source_forward_stop: stop fowarding, but keep the source | |
900 | igmp_source_delete: stop fowarding, and delete the source | |
901 | */ | |
902 | void igmp_source_forward_stop(struct igmp_source *source) | |
903 | { | |
d62a17ae | 904 | struct igmp_group *group; |
905 | struct prefix_sg sg; | |
906 | int result; | |
907 | ||
908 | memset(&sg, 0, sizeof(struct prefix_sg)); | |
909 | sg.src = source->source_addr; | |
910 | sg.grp = source->source_group->group_addr; | |
911 | ||
912 | if (PIM_DEBUG_IGMP_TRACE) { | |
913 | zlog_debug( | |
914 | "%s: (S,G)=%s igmp_sock=%d oif=%s fwd=%d", | |
915 | __PRETTY_FUNCTION__, pim_str_sg_dump(&sg), | |
916 | source->source_group->group_igmp_sock->fd, | |
917 | source->source_group->group_igmp_sock->interface->name, | |
918 | IGMP_SOURCE_TEST_FORWARDING(source->source_flags)); | |
919 | } | |
920 | ||
921 | /* Prevent IGMP interface from removing multicast route multiple | |
922 | times */ | |
923 | if (!IGMP_SOURCE_TEST_FORWARDING(source->source_flags)) { | |
924 | return; | |
925 | } | |
926 | ||
927 | group = source->source_group; | |
928 | ||
929 | /* | |
930 | It appears that in certain circumstances that | |
931 | igmp_source_forward_stop is called when IGMP forwarding | |
932 | was not enabled in oif_flags for this outgoing interface. | |
933 | Possibly because of multiple calls. When that happens, we | |
934 | enter the below if statement and this function returns early | |
935 | which in turn triggers the calling function to assert. | |
936 | Making the call to pim_channel_del_oif and ignoring the return code | |
937 | fixes the issue without ill effect, similar to | |
938 | pim_forward_stop below. | |
939 | */ | |
940 | result = pim_channel_del_oif(source->source_channel_oil, | |
941 | group->group_igmp_sock->interface, | |
1b249e70 AK |
942 | PIM_OIF_FLAG_PROTO_IGMP, |
943 | __func__); | |
d62a17ae | 944 | if (result) { |
945 | if (PIM_DEBUG_IGMP_TRACE) | |
946 | zlog_debug( | |
947 | "%s: pim_channel_del_oif() failed with return=%d", | |
948 | __func__, result); | |
949 | return; | |
950 | } | |
951 | ||
952 | /* | |
953 | Feed IGMPv3-gathered local membership information into PIM | |
954 | per-interface (S,G) state. | |
955 | */ | |
956 | pim_ifchannel_local_membership_del(group->group_igmp_sock->interface, | |
957 | &sg); | |
958 | ||
959 | IGMP_SOURCE_DONT_FORWARDING(source->source_flags); | |
12e41d03 DL |
960 | } |
961 | ||
962 | void pim_forward_start(struct pim_ifchannel *ch) | |
963 | { | |
d62a17ae | 964 | struct pim_upstream *up = ch->upstream; |
965 | uint32_t mask = PIM_OIF_FLAG_PROTO_PIM; | |
d62a17ae | 966 | |
967 | if (PIM_DEBUG_PIM_TRACE) { | |
968 | char source_str[INET_ADDRSTRLEN]; | |
969 | char group_str[INET_ADDRSTRLEN]; | |
970 | char upstream_str[INET_ADDRSTRLEN]; | |
971 | ||
972 | pim_inet4_dump("<source?>", ch->sg.src, source_str, | |
973 | sizeof(source_str)); | |
974 | pim_inet4_dump("<group?>", ch->sg.grp, group_str, | |
975 | sizeof(group_str)); | |
976 | pim_inet4_dump("<upstream?>", up->upstream_addr, upstream_str, | |
977 | sizeof(upstream_str)); | |
978 | zlog_debug("%s: (S,G)=(%s,%s) oif=%s (%s)", __PRETTY_FUNCTION__, | |
979 | source_str, group_str, ch->interface->name, | |
732c209c | 980 | inet_ntoa(up->upstream_addr)); |
d62a17ae | 981 | } |
982 | ||
d62a17ae | 983 | if (up->flags & PIM_UPSTREAM_FLAG_MASK_SRC_IGMP) |
984 | mask = PIM_OIF_FLAG_PROTO_IGMP; | |
985 | ||
1b249e70 AK |
986 | pim_channel_add_oif(up->channel_oil, ch->interface, |
987 | mask, __func__); | |
12e41d03 DL |
988 | } |
989 | ||
aabb9a2f | 990 | void pim_forward_stop(struct pim_ifchannel *ch, bool install_it) |
12e41d03 | 991 | { |
d62a17ae | 992 | struct pim_upstream *up = ch->upstream; |
12e41d03 | 993 | |
d62a17ae | 994 | if (PIM_DEBUG_PIM_TRACE) { |
aabb9a2f DS |
995 | zlog_debug("%s: (S,G)=%s oif=%s install_it: %d installed: %d", |
996 | __PRETTY_FUNCTION__, ch->sg_str, ch->interface->name, | |
997 | install_it, up->channel_oil->installed); | |
d62a17ae | 998 | } |
12e41d03 | 999 | |
2164ed5d DS |
1000 | /* |
1001 | * If a channel is being removed, check to see if we still need | |
1002 | * to inherit the interface. If so make sure it is added in | |
1003 | */ | |
1004 | if (pim_upstream_evaluate_join_desired_interface(up, ch, ch->parent)) | |
1005 | pim_channel_add_oif(up->channel_oil, ch->interface, | |
1b249e70 | 1006 | PIM_OIF_FLAG_PROTO_PIM, __func__); |
2164ed5d DS |
1007 | else |
1008 | pim_channel_del_oif(up->channel_oil, ch->interface, | |
1b249e70 | 1009 | PIM_OIF_FLAG_PROTO_PIM, __func__); |
aabb9a2f DS |
1010 | |
1011 | if (install_it && !up->channel_oil->installed) | |
69e3538c | 1012 | pim_upstream_mroute_add(up->channel_oil, __PRETTY_FUNCTION__); |
12e41d03 | 1013 | } |
8799b66b | 1014 | |
d62a17ae | 1015 | void pim_zebra_zclient_update(struct vty *vty) |
8799b66b | 1016 | { |
d62a17ae | 1017 | vty_out(vty, "Zclient update socket: "); |
1018 | ||
1019 | if (zclient) { | |
1020 | vty_out(vty, "%d failures=%d\n", zclient->sock, zclient->fail); | |
1021 | } else { | |
1022 | vty_out(vty, "<null zclient>\n"); | |
1023 | } | |
8799b66b | 1024 | } |
1bc98276 | 1025 | |
d62a17ae | 1026 | struct zclient *pim_zebra_zclient_get(void) |
1bc98276 | 1027 | { |
d62a17ae | 1028 | if (zclient) |
1029 | return zclient; | |
1030 | else | |
1031 | return NULL; | |
1bc98276 | 1032 | } |
ddbf3e60 DS |
1033 | |
1034 | void pim_zebra_interface_set_master(struct interface *vrf, | |
1035 | struct interface *ifp) | |
1036 | { | |
1037 | zclient_interface_set_master(zclient, vrf, ifp); | |
1038 | } |