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8f5f5e91 DS |
1 | /* |
2 | * PIM for Quagga | |
3 | * Copyright (C) 2015 Cumulus Networks, Inc. | |
4 | * Donald Sharp | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
896014f4 DL |
15 | * |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
8f5f5e91 DS |
19 | */ |
20 | #include <zebra.h> | |
21 | ||
9bf3c633 | 22 | #include "lib/json.h" |
54b97c74 | 23 | #include "log.h" |
8f5f5e91 | 24 | #include "network.h" |
744d91b3 | 25 | #include "if.h" |
36d6bd7d DS |
26 | #include "linklist.h" |
27 | #include "prefix.h" | |
28 | #include "memory.h" | |
00d07c6f DS |
29 | #include "vty.h" |
30 | #include "vrf.h" | |
dfe43e25 | 31 | #include "plist.h" |
cba44481 | 32 | #include "nexthop.h" |
8f5f5e91 DS |
33 | |
34 | #include "pimd.h" | |
75a26779 | 35 | #include "pim_vty.h" |
54b97c74 | 36 | #include "pim_str.h" |
7176984f | 37 | #include "pim_iface.h" |
8f5f5e91 | 38 | #include "pim_rp.h" |
ed66602c DS |
39 | #include "pim_str.h" |
40 | #include "pim_rpf.h" | |
13afbd05 | 41 | #include "pim_sock.h" |
36d6bd7d | 42 | #include "pim_memory.h" |
00d07c6f | 43 | #include "pim_iface.h" |
7667c556 | 44 | #include "pim_msdp.h" |
1bc98276 | 45 | #include "pim_nht.h" |
8f5f5e91 | 46 | |
36d6bd7d | 47 | |
c2cf4b02 DS |
48 | /* Cleanup pim->rpf_hash each node data */ |
49 | void pim_rp_list_hash_clean(void *data) | |
50 | { | |
7c591950 | 51 | struct pim_nexthop_cache *pnc = (struct pim_nexthop_cache *)data; |
c2cf4b02 | 52 | |
6e1ef388 DS |
53 | list_delete(pnc->rp_list); |
54 | pnc->rp_list = NULL; | |
55 | ||
7c591950 DS |
56 | hash_clean(pnc->upstream_hash, NULL); |
57 | hash_free(pnc->upstream_hash); | |
58 | pnc->upstream_hash = NULL; | |
6e1ef388 DS |
59 | |
60 | XFREE(MTYPE_PIM_NEXTHOP_CACHE, pnc); | |
c2cf4b02 DS |
61 | } |
62 | ||
d62a17ae | 63 | static void pim_rp_info_free(struct rp_info *rp_info) |
36d6bd7d | 64 | { |
d62a17ae | 65 | XFREE(MTYPE_PIM_RP, rp_info); |
36d6bd7d DS |
66 | } |
67 | ||
d62a17ae | 68 | int pim_rp_list_cmp(void *v1, void *v2) |
36d6bd7d | 69 | { |
d62a17ae | 70 | struct rp_info *rp1 = (struct rp_info *)v1; |
71 | struct rp_info *rp2 = (struct rp_info *)v2; | |
72 | ||
73 | /* | |
74 | * Sort by RP IP address | |
75 | */ | |
76 | if (rp1->rp.rpf_addr.u.prefix4.s_addr | |
77 | < rp2->rp.rpf_addr.u.prefix4.s_addr) | |
78 | return -1; | |
79 | ||
80 | if (rp1->rp.rpf_addr.u.prefix4.s_addr | |
81 | > rp2->rp.rpf_addr.u.prefix4.s_addr) | |
82 | return 1; | |
83 | ||
84 | /* | |
85 | * Sort by group IP address | |
86 | */ | |
87 | if (rp1->group.u.prefix4.s_addr < rp2->group.u.prefix4.s_addr) | |
88 | return -1; | |
89 | ||
90 | if (rp1->group.u.prefix4.s_addr > rp2->group.u.prefix4.s_addr) | |
91 | return 1; | |
92 | ||
93 | return 0; | |
36d6bd7d DS |
94 | } |
95 | ||
d9c9a9ee | 96 | void pim_rp_init(struct pim_instance *pim) |
36d6bd7d | 97 | { |
d62a17ae | 98 | struct rp_info *rp_info; |
36d6bd7d | 99 | |
d9c9a9ee DS |
100 | pim->rp_list = list_new(); |
101 | pim->rp_list->del = (void (*)(void *))pim_rp_info_free; | |
102 | pim->rp_list->cmp = pim_rp_list_cmp; | |
36d6bd7d | 103 | |
d62a17ae | 104 | rp_info = XCALLOC(MTYPE_PIM_RP, sizeof(*rp_info)); |
36d6bd7d | 105 | |
d62a17ae | 106 | if (!rp_info) |
107 | return; | |
36d6bd7d | 108 | |
2e8345c1 DS |
109 | if (!str2prefix("224.0.0.0/4", &rp_info->group)) { |
110 | XFREE(MTYPE_PIM_RP, rp_info); | |
111 | return; | |
112 | } | |
d62a17ae | 113 | rp_info->group.family = AF_INET; |
114 | rp_info->rp.rpf_addr.family = AF_INET; | |
115 | rp_info->rp.rpf_addr.prefixlen = IPV4_MAX_PREFIXLEN; | |
116 | rp_info->rp.rpf_addr.u.prefix4.s_addr = INADDR_NONE; | |
36d6bd7d | 117 | |
d9c9a9ee | 118 | listnode_add(pim->rp_list, rp_info); |
36d6bd7d DS |
119 | } |
120 | ||
d9c9a9ee | 121 | void pim_rp_free(struct pim_instance *pim) |
36d6bd7d | 122 | { |
d9c9a9ee DS |
123 | if (pim->rp_list) |
124 | list_delete(pim->rp_list); | |
125 | pim->rp_list = NULL; | |
36d6bd7d DS |
126 | } |
127 | ||
dfe43e25 DW |
128 | /* |
129 | * Given an RP's prefix-list, return the RP's rp_info for that prefix-list | |
130 | */ | |
d9c9a9ee DS |
131 | static struct rp_info *pim_rp_find_prefix_list(struct pim_instance *pim, |
132 | struct in_addr rp, | |
d62a17ae | 133 | const char *plist) |
36d6bd7d | 134 | { |
d62a17ae | 135 | struct listnode *node; |
136 | struct rp_info *rp_info; | |
137 | ||
d9c9a9ee | 138 | for (ALL_LIST_ELEMENTS_RO(pim->rp_list, node, rp_info)) { |
d62a17ae | 139 | if (rp.s_addr == rp_info->rp.rpf_addr.u.prefix4.s_addr |
140 | && rp_info->plist && strcmp(rp_info->plist, plist) == 0) { | |
141 | return rp_info; | |
142 | } | |
143 | } | |
144 | ||
145 | return NULL; | |
36d6bd7d DS |
146 | } |
147 | ||
dfe43e25 DW |
148 | /* |
149 | * Return true if plist is used by any rp_info | |
150 | */ | |
d9c9a9ee | 151 | static int pim_rp_prefix_list_used(struct pim_instance *pim, const char *plist) |
dfe43e25 | 152 | { |
d62a17ae | 153 | struct listnode *node; |
154 | struct rp_info *rp_info; | |
155 | ||
d9c9a9ee | 156 | for (ALL_LIST_ELEMENTS_RO(pim->rp_list, node, rp_info)) { |
d62a17ae | 157 | if (rp_info->plist && strcmp(rp_info->plist, plist) == 0) { |
158 | return 1; | |
159 | } | |
160 | } | |
161 | ||
162 | return 0; | |
dfe43e25 DW |
163 | } |
164 | ||
165 | /* | |
d62a17ae | 166 | * Given an RP's address, return the RP's rp_info that is an exact match for |
167 | * 'group' | |
dfe43e25 | 168 | */ |
d9c9a9ee DS |
169 | static struct rp_info *pim_rp_find_exact(struct pim_instance *pim, |
170 | struct in_addr rp, | |
d62a17ae | 171 | struct prefix *group) |
36d6bd7d | 172 | { |
d62a17ae | 173 | struct listnode *node; |
174 | struct rp_info *rp_info; | |
36d6bd7d | 175 | |
d9c9a9ee | 176 | for (ALL_LIST_ELEMENTS_RO(pim->rp_list, node, rp_info)) { |
d62a17ae | 177 | if (rp.s_addr == rp_info->rp.rpf_addr.u.prefix4.s_addr |
178 | && prefix_same(&rp_info->group, group)) | |
179 | return rp_info; | |
180 | } | |
54b97c74 | 181 | |
d62a17ae | 182 | return NULL; |
36d6bd7d DS |
183 | } |
184 | ||
dfe43e25 DW |
185 | /* |
186 | * Given a group, return the rp_info for that group | |
187 | */ | |
d9c9a9ee DS |
188 | static struct rp_info *pim_rp_find_match_group(struct pim_instance *pim, |
189 | struct prefix *group) | |
36d6bd7d | 190 | { |
d62a17ae | 191 | struct listnode *node; |
192 | struct rp_info *rp_info; | |
193 | struct prefix_list *plist; | |
194 | ||
d9c9a9ee | 195 | for (ALL_LIST_ELEMENTS_RO(pim->rp_list, node, rp_info)) { |
d62a17ae | 196 | if (rp_info->plist) { |
197 | plist = prefix_list_lookup(AFI_IP, rp_info->plist); | |
198 | ||
199 | if (plist | |
200 | && prefix_list_apply(plist, group) == PREFIX_PERMIT) | |
201 | return rp_info; | |
202 | } else { | |
203 | if (prefix_match(&rp_info->group, group)) | |
204 | return rp_info; | |
205 | } | |
206 | } | |
207 | ||
208 | return NULL; | |
36d6bd7d | 209 | } |
75a26779 | 210 | |
dfe43e25 DW |
211 | /* |
212 | * When the user makes "ip pim rp" configuration changes or if they change the | |
213 | * prefix-list(s) used by these statements we must tickle the upstream state | |
214 | * for each group to make them re-lookup who their RP should be. | |
215 | * | |
216 | * This is a placeholder function for now. | |
217 | */ | |
472ad383 | 218 | static void pim_rp_refresh_group_to_rp_mapping(struct pim_instance *pim) |
dfe43e25 | 219 | { |
472ad383 | 220 | pim_msdp_i_am_rp_changed(pim); |
dfe43e25 DW |
221 | } |
222 | ||
d9c9a9ee DS |
223 | void pim_rp_prefix_list_update(struct pim_instance *pim, |
224 | struct prefix_list *plist) | |
dfe43e25 | 225 | { |
d62a17ae | 226 | struct listnode *node; |
227 | struct rp_info *rp_info; | |
228 | int refresh_needed = 0; | |
229 | ||
d9c9a9ee | 230 | for (ALL_LIST_ELEMENTS_RO(pim->rp_list, node, rp_info)) { |
d62a17ae | 231 | if (rp_info->plist |
232 | && strcmp(rp_info->plist, prefix_list_name(plist)) == 0) { | |
233 | refresh_needed = 1; | |
234 | break; | |
235 | } | |
236 | } | |
237 | ||
238 | if (refresh_needed) | |
472ad383 | 239 | pim_rp_refresh_group_to_rp_mapping(pim); |
dfe43e25 DW |
240 | } |
241 | ||
d62a17ae | 242 | static int pim_rp_check_interface_addrs(struct rp_info *rp_info, |
243 | struct pim_interface *pim_ifp) | |
7176984f | 244 | { |
d62a17ae | 245 | struct listnode *node; |
246 | struct pim_secondary_addr *sec_addr; | |
7176984f | 247 | |
d62a17ae | 248 | if (pim_ifp->primary_address.s_addr |
249 | == rp_info->rp.rpf_addr.u.prefix4.s_addr) | |
250 | return 1; | |
7176984f | 251 | |
d62a17ae | 252 | if (!pim_ifp->sec_addr_list) { |
253 | return 0; | |
254 | } | |
7176984f | 255 | |
d62a17ae | 256 | for (ALL_LIST_ELEMENTS_RO(pim_ifp->sec_addr_list, node, sec_addr)) { |
257 | if (prefix_same(&sec_addr->addr, &rp_info->rp.rpf_addr)) { | |
258 | return 1; | |
259 | } | |
260 | } | |
7176984f | 261 | |
d62a17ae | 262 | return 0; |
7176984f | 263 | } |
264 | ||
fec883d9 DS |
265 | static void pim_rp_check_interfaces(struct pim_instance *pim, |
266 | struct rp_info *rp_info) | |
00d07c6f | 267 | { |
d62a17ae | 268 | struct listnode *node; |
269 | struct interface *ifp; | |
00d07c6f | 270 | |
d62a17ae | 271 | rp_info->i_am_rp = 0; |
fec883d9 | 272 | for (ALL_LIST_ELEMENTS_RO(vrf_iflist(pim->vrf_id), node, ifp)) { |
d62a17ae | 273 | struct pim_interface *pim_ifp = ifp->info; |
00d07c6f | 274 | |
d62a17ae | 275 | if (!pim_ifp) |
276 | continue; | |
00d07c6f | 277 | |
d62a17ae | 278 | if (pim_rp_check_interface_addrs(rp_info, pim_ifp)) { |
279 | rp_info->i_am_rp = 1; | |
280 | } | |
281 | } | |
00d07c6f DS |
282 | } |
283 | ||
fec883d9 DS |
284 | int pim_rp_new(struct pim_instance *pim, const char *rp, |
285 | const char *group_range, const char *plist) | |
75a26779 | 286 | { |
d62a17ae | 287 | int result = 0; |
288 | struct rp_info *rp_info; | |
289 | struct rp_info *rp_all; | |
290 | struct prefix group_all; | |
291 | struct listnode *node, *nnode; | |
292 | struct rp_info *tmp_rp_info; | |
293 | char buffer[BUFSIZ]; | |
294 | struct prefix nht_p; | |
295 | struct pim_nexthop_cache pnc; | |
296 | ||
297 | rp_info = XCALLOC(MTYPE_PIM_RP, sizeof(*rp_info)); | |
298 | if (!rp_info) | |
299 | return PIM_MALLOC_FAIL; | |
300 | ||
301 | if (group_range == NULL) | |
302 | result = str2prefix("224.0.0.0/4", &rp_info->group); | |
303 | else | |
304 | result = str2prefix(group_range, &rp_info->group); | |
305 | ||
306 | if (!result) { | |
307 | XFREE(MTYPE_PIM_RP, rp_info); | |
308 | return PIM_GROUP_BAD_ADDRESS; | |
309 | } | |
310 | ||
311 | rp_info->rp.rpf_addr.family = AF_INET; | |
312 | rp_info->rp.rpf_addr.prefixlen = IPV4_MAX_PREFIXLEN; | |
313 | result = inet_pton(rp_info->rp.rpf_addr.family, rp, | |
314 | &rp_info->rp.rpf_addr.u.prefix4); | |
315 | ||
316 | if (result <= 0) { | |
317 | XFREE(MTYPE_PIM_RP, rp_info); | |
318 | return PIM_RP_BAD_ADDRESS; | |
319 | } | |
320 | ||
321 | if (plist) { | |
322 | /* | |
323 | * Return if the prefix-list is already configured for this RP | |
324 | */ | |
d9c9a9ee | 325 | if (pim_rp_find_prefix_list(pim, rp_info->rp.rpf_addr.u.prefix4, |
d62a17ae | 326 | plist)) { |
327 | XFREE(MTYPE_PIM_RP, rp_info); | |
328 | return PIM_SUCCESS; | |
329 | } | |
330 | ||
331 | /* | |
332 | * Barf if the prefix-list is already configured for an RP | |
333 | */ | |
d9c9a9ee | 334 | if (pim_rp_prefix_list_used(pim, plist)) { |
d62a17ae | 335 | XFREE(MTYPE_PIM_RP, rp_info); |
336 | return PIM_RP_PFXLIST_IN_USE; | |
337 | } | |
338 | ||
339 | /* | |
340 | * Free any existing rp_info entries for this RP | |
341 | */ | |
d9c9a9ee | 342 | for (ALL_LIST_ELEMENTS(pim->rp_list, node, nnode, |
d62a17ae | 343 | tmp_rp_info)) { |
344 | if (rp_info->rp.rpf_addr.u.prefix4.s_addr | |
345 | == tmp_rp_info->rp.rpf_addr.u.prefix4.s_addr) { | |
346 | if (tmp_rp_info->plist) | |
fec883d9 | 347 | pim_rp_del(pim, rp, NULL, |
d62a17ae | 348 | tmp_rp_info->plist); |
349 | else | |
350 | pim_rp_del( | |
fec883d9 | 351 | pim, rp, |
d62a17ae | 352 | prefix2str(&tmp_rp_info->group, |
353 | buffer, BUFSIZ), | |
354 | NULL); | |
355 | } | |
356 | } | |
357 | ||
358 | rp_info->plist = XSTRDUP(MTYPE_PIM_FILTER_NAME, plist); | |
359 | } else { | |
2e8345c1 DS |
360 | if (!str2prefix("224.0.0.0/4", &group_all)) { |
361 | XFREE(MTYPE_PIM_RP, rp_info); | |
362 | return PIM_GROUP_BAD_ADDRESS; | |
363 | } | |
d9c9a9ee | 364 | rp_all = pim_rp_find_match_group(pim, &group_all); |
d62a17ae | 365 | |
366 | /* | |
367 | * Barf if group is a non-multicast subnet | |
368 | */ | |
369 | if (!prefix_match(&rp_all->group, &rp_info->group)) { | |
370 | XFREE(MTYPE_PIM_RP, rp_info); | |
371 | return PIM_GROUP_BAD_ADDRESS; | |
372 | } | |
373 | ||
374 | /* | |
375 | * Remove any prefix-list rp_info entries for this RP | |
376 | */ | |
d9c9a9ee | 377 | for (ALL_LIST_ELEMENTS(pim->rp_list, node, nnode, |
d62a17ae | 378 | tmp_rp_info)) { |
379 | if (tmp_rp_info->plist | |
380 | && rp_info->rp.rpf_addr.u.prefix4.s_addr | |
381 | == tmp_rp_info->rp.rpf_addr.u.prefix4 | |
382 | .s_addr) { | |
fec883d9 | 383 | pim_rp_del(pim, rp, NULL, tmp_rp_info->plist); |
d62a17ae | 384 | } |
385 | } | |
386 | ||
387 | /* | |
388 | * Take over the 224.0.0.0/4 group if the rp is INADDR_NONE | |
389 | */ | |
390 | if (prefix_same(&rp_all->group, &rp_info->group) | |
391 | && pim_rpf_addr_is_inaddr_none(&rp_all->rp)) { | |
392 | rp_all->rp.rpf_addr = rp_info->rp.rpf_addr; | |
393 | XFREE(MTYPE_PIM_RP, rp_info); | |
394 | ||
395 | /* Register addr with Zebra NHT */ | |
396 | nht_p.family = AF_INET; | |
397 | nht_p.prefixlen = IPV4_MAX_BITLEN; | |
398 | nht_p.u.prefix4 = | |
399 | rp_all->rp.rpf_addr.u.prefix4; // RP address | |
400 | if (PIM_DEBUG_PIM_TRACE) { | |
401 | char buf[PREFIX2STR_BUFFER]; | |
402 | char buf1[PREFIX2STR_BUFFER]; | |
403 | prefix2str(&nht_p, buf, sizeof(buf)); | |
404 | prefix2str(&rp_all->group, buf1, sizeof(buf1)); | |
405 | zlog_debug( | |
406 | "%s: NHT Register rp_all addr %s grp %s ", | |
407 | __PRETTY_FUNCTION__, buf, buf1); | |
408 | } | |
409 | memset(&pnc, 0, sizeof(struct pim_nexthop_cache)); | |
fec883d9 DS |
410 | if (pim_find_or_track_nexthop(pim, &nht_p, NULL, rp_all, |
411 | &pnc)) { | |
cb9c7c50 | 412 | if (!pim_ecmp_nexthop_search( |
fec883d9 | 413 | pim, &pnc, |
25b787a2 DS |
414 | &rp_all->rp.source_nexthop, &nht_p, |
415 | &rp_all->group, 1)) | |
d62a17ae | 416 | return PIM_RP_NO_PATH; |
417 | } else { | |
418 | if (pim_nexthop_lookup( | |
d9c9a9ee | 419 | pim, &rp_all->rp.source_nexthop, |
d62a17ae | 420 | rp_all->rp.rpf_addr.u.prefix4, 1) |
421 | != 0) | |
422 | return PIM_RP_NO_PATH; | |
423 | } | |
fec883d9 | 424 | pim_rp_check_interfaces(pim, rp_all); |
472ad383 | 425 | pim_rp_refresh_group_to_rp_mapping(pim); |
d62a17ae | 426 | return PIM_SUCCESS; |
427 | } | |
428 | ||
429 | /* | |
430 | * Return if the group is already configured for this RP | |
431 | */ | |
d9c9a9ee | 432 | if (pim_rp_find_exact(pim, rp_info->rp.rpf_addr.u.prefix4, |
d62a17ae | 433 | &rp_info->group)) { |
434 | XFREE(MTYPE_PIM_RP, rp_info); | |
435 | return PIM_SUCCESS; | |
436 | } | |
437 | ||
438 | /* | |
439 | * Barf if this group is already covered by some other RP | |
440 | */ | |
d9c9a9ee | 441 | tmp_rp_info = pim_rp_find_match_group(pim, &rp_info->group); |
d62a17ae | 442 | |
443 | if (tmp_rp_info) { | |
444 | if (tmp_rp_info->plist) { | |
445 | XFREE(MTYPE_PIM_RP, rp_info); | |
446 | return PIM_GROUP_PFXLIST_OVERLAP; | |
447 | } else { | |
448 | /* | |
449 | * If the only RP that covers this group is an | |
450 | * RP configured for | |
451 | * 224.0.0.0/4 that is fine, ignore that one. | |
452 | * For all others | |
453 | * though we must return PIM_GROUP_OVERLAP | |
454 | */ | |
455 | if (!prefix_same(&group_all, | |
456 | &tmp_rp_info->group)) { | |
457 | XFREE(MTYPE_PIM_RP, rp_info); | |
458 | return PIM_GROUP_OVERLAP; | |
459 | } | |
460 | } | |
461 | } | |
462 | } | |
463 | ||
d9c9a9ee | 464 | listnode_add_sort(pim->rp_list, rp_info); |
d62a17ae | 465 | |
466 | /* Register addr with Zebra NHT */ | |
467 | nht_p.family = AF_INET; | |
468 | nht_p.prefixlen = IPV4_MAX_BITLEN; | |
469 | nht_p.u.prefix4 = rp_info->rp.rpf_addr.u.prefix4; | |
470 | if (PIM_DEBUG_PIM_TRACE) { | |
471 | char buf[PREFIX2STR_BUFFER]; | |
472 | char buf1[PREFIX2STR_BUFFER]; | |
473 | prefix2str(&nht_p, buf, sizeof(buf)); | |
474 | prefix2str(&rp_info->group, buf1, sizeof(buf1)); | |
475 | zlog_debug("%s: NHT Register RP addr %s grp %s with Zebra ", | |
476 | __PRETTY_FUNCTION__, buf, buf1); | |
477 | } | |
478 | ||
479 | memset(&pnc, 0, sizeof(struct pim_nexthop_cache)); | |
fec883d9 DS |
480 | if (pim_find_or_track_nexthop(pim, &nht_p, NULL, rp_info, &pnc)) { |
481 | if (!pim_ecmp_nexthop_search(pim, &pnc, | |
25b787a2 | 482 | &rp_info->rp.source_nexthop, |
cb9c7c50 | 483 | &nht_p, &rp_info->group, 1)) |
d62a17ae | 484 | return PIM_RP_NO_PATH; |
485 | } else { | |
d9c9a9ee | 486 | if (pim_nexthop_lookup(pim, &rp_info->rp.source_nexthop, |
d62a17ae | 487 | rp_info->rp.rpf_addr.u.prefix4, 1) |
488 | != 0) | |
489 | return PIM_RP_NO_PATH; | |
490 | } | |
491 | ||
fec883d9 | 492 | pim_rp_check_interfaces(pim, rp_info); |
472ad383 | 493 | pim_rp_refresh_group_to_rp_mapping(pim); |
d62a17ae | 494 | return PIM_SUCCESS; |
75a26779 DS |
495 | } |
496 | ||
fec883d9 DS |
497 | int pim_rp_del(struct pim_instance *pim, const char *rp, |
498 | const char *group_range, const char *plist) | |
75a26779 | 499 | { |
d62a17ae | 500 | struct prefix group; |
501 | struct in_addr rp_addr; | |
502 | struct prefix g_all; | |
503 | struct rp_info *rp_info; | |
504 | struct rp_info *rp_all; | |
505 | int result; | |
506 | struct prefix nht_p; | |
507 | ||
508 | if (group_range == NULL) | |
509 | result = str2prefix("224.0.0.0/4", &group); | |
510 | else | |
511 | result = str2prefix(group_range, &group); | |
512 | ||
513 | if (!result) | |
514 | return PIM_GROUP_BAD_ADDRESS; | |
515 | ||
516 | result = inet_pton(AF_INET, rp, &rp_addr); | |
517 | if (result <= 0) | |
518 | return PIM_RP_BAD_ADDRESS; | |
519 | ||
520 | if (plist) | |
d9c9a9ee | 521 | rp_info = pim_rp_find_prefix_list(pim, rp_addr, plist); |
d62a17ae | 522 | else |
d9c9a9ee | 523 | rp_info = pim_rp_find_exact(pim, rp_addr, &group); |
d62a17ae | 524 | |
525 | if (!rp_info) | |
526 | return PIM_RP_NOT_FOUND; | |
527 | ||
528 | if (rp_info->plist) { | |
529 | XFREE(MTYPE_PIM_FILTER_NAME, rp_info->plist); | |
530 | rp_info->plist = NULL; | |
531 | } | |
532 | ||
533 | /* Deregister addr with Zebra NHT */ | |
534 | nht_p.family = AF_INET; | |
535 | nht_p.prefixlen = IPV4_MAX_BITLEN; | |
536 | nht_p.u.prefix4 = rp_info->rp.rpf_addr.u.prefix4; | |
537 | if (PIM_DEBUG_PIM_TRACE) { | |
538 | char buf[PREFIX2STR_BUFFER]; | |
539 | prefix2str(&nht_p, buf, sizeof(buf)); | |
540 | zlog_debug("%s: Deregister RP addr %s with Zebra ", | |
541 | __PRETTY_FUNCTION__, buf); | |
542 | } | |
fec883d9 | 543 | pim_delete_tracked_nexthop(pim, &nht_p, NULL, rp_info); |
d62a17ae | 544 | |
545 | str2prefix("224.0.0.0/4", &g_all); | |
d9c9a9ee | 546 | rp_all = pim_rp_find_match_group(pim, &g_all); |
d62a17ae | 547 | |
548 | if (rp_all == rp_info) { | |
549 | rp_all->rp.rpf_addr.family = AF_INET; | |
550 | rp_all->rp.rpf_addr.u.prefix4.s_addr = INADDR_NONE; | |
551 | rp_all->i_am_rp = 0; | |
552 | return PIM_SUCCESS; | |
553 | } | |
554 | ||
d9c9a9ee | 555 | listnode_delete(pim->rp_list, rp_info); |
472ad383 | 556 | pim_rp_refresh_group_to_rp_mapping(pim); |
d62a17ae | 557 | return PIM_SUCCESS; |
75a26779 | 558 | } |
13afbd05 | 559 | |
fec883d9 | 560 | void pim_rp_setup(struct pim_instance *pim) |
13afbd05 | 561 | { |
d62a17ae | 562 | struct listnode *node; |
563 | struct rp_info *rp_info; | |
d62a17ae | 564 | struct prefix nht_p; |
565 | struct pim_nexthop_cache pnc; | |
566 | ||
d9c9a9ee | 567 | for (ALL_LIST_ELEMENTS_RO(pim->rp_list, node, rp_info)) { |
d62a17ae | 568 | if (rp_info->rp.rpf_addr.u.prefix4.s_addr == INADDR_NONE) |
569 | continue; | |
570 | ||
571 | nht_p.family = AF_INET; | |
572 | nht_p.prefixlen = IPV4_MAX_BITLEN; | |
573 | nht_p.u.prefix4 = rp_info->rp.rpf_addr.u.prefix4; | |
574 | memset(&pnc, 0, sizeof(struct pim_nexthop_cache)); | |
fec883d9 DS |
575 | if (pim_find_or_track_nexthop(pim, &nht_p, NULL, rp_info, &pnc)) |
576 | pim_ecmp_nexthop_search(pim, &pnc, | |
cb9c7c50 DS |
577 | &rp_info->rp.source_nexthop, |
578 | &nht_p, &rp_info->group, 1); | |
579 | else { | |
d62a17ae | 580 | if (PIM_DEBUG_ZEBRA) { |
581 | char buf[PREFIX2STR_BUFFER]; | |
582 | prefix2str(&nht_p, buf, sizeof(buf)); | |
583 | zlog_debug( | |
584 | "%s: NHT Local Nexthop not found for RP %s ", | |
585 | __PRETTY_FUNCTION__, buf); | |
586 | } | |
d9c9a9ee DS |
587 | if (!pim_nexthop_lookup( |
588 | pim, &rp_info->rp.source_nexthop, | |
589 | rp_info->rp.rpf_addr.u.prefix4, 1)) | |
d62a17ae | 590 | if (PIM_DEBUG_PIM_TRACE) |
591 | zlog_debug( | |
592 | "Unable to lookup nexthop for rp specified"); | |
d62a17ae | 593 | } |
594 | } | |
13afbd05 DS |
595 | } |
596 | ||
54b97c74 | 597 | /* |
7176984f | 598 | * Checks to see if we should elect ourself the actual RP when new if |
599 | * addresses are added against an interface. | |
54b97c74 | 600 | */ |
d62a17ae | 601 | void pim_rp_check_on_if_add(struct pim_interface *pim_ifp) |
54b97c74 | 602 | { |
d62a17ae | 603 | struct listnode *node; |
604 | struct rp_info *rp_info; | |
605 | bool i_am_rp_changed = false; | |
d9c9a9ee | 606 | struct pim_instance *pim = pim_ifp->pim; |
d62a17ae | 607 | |
d9c9a9ee | 608 | if (pim->rp_list == NULL) |
d62a17ae | 609 | return; |
610 | ||
d9c9a9ee | 611 | for (ALL_LIST_ELEMENTS_RO(pim->rp_list, node, rp_info)) { |
d62a17ae | 612 | if (pim_rpf_addr_is_inaddr_none(&rp_info->rp)) |
613 | continue; | |
614 | ||
615 | /* if i_am_rp is already set nothing to be done (adding new | |
616 | * addresses | |
617 | * is not going to make a difference). */ | |
618 | if (rp_info->i_am_rp) { | |
619 | continue; | |
620 | } | |
621 | ||
622 | if (pim_rp_check_interface_addrs(rp_info, pim_ifp)) { | |
623 | i_am_rp_changed = true; | |
624 | rp_info->i_am_rp = 1; | |
625 | if (PIM_DEBUG_ZEBRA) { | |
626 | char rp[PREFIX_STRLEN]; | |
627 | pim_addr_dump("<rp?>", &rp_info->rp.rpf_addr, | |
628 | rp, sizeof(rp)); | |
629 | zlog_debug("%s: %s: i am rp", __func__, rp); | |
630 | } | |
631 | } | |
632 | } | |
633 | ||
634 | if (i_am_rp_changed) { | |
472ad383 | 635 | pim_msdp_i_am_rp_changed(pim); |
d62a17ae | 636 | } |
7176984f | 637 | } |
36d6bd7d | 638 | |
7176984f | 639 | /* up-optimized re-evaluation of "i_am_rp". this is used when ifaddresses |
640 | * are removed. Removing numbers is an uncommon event in an active network | |
641 | * so I have made no attempt to optimize it. */ | |
fec883d9 | 642 | void pim_i_am_rp_re_evaluate(struct pim_instance *pim) |
7176984f | 643 | { |
d62a17ae | 644 | struct listnode *node; |
645 | struct rp_info *rp_info; | |
646 | bool i_am_rp_changed = false; | |
647 | int old_i_am_rp; | |
648 | ||
d9c9a9ee | 649 | if (pim->rp_list == NULL) |
d62a17ae | 650 | return; |
651 | ||
d9c9a9ee | 652 | for (ALL_LIST_ELEMENTS_RO(pim->rp_list, node, rp_info)) { |
d62a17ae | 653 | if (pim_rpf_addr_is_inaddr_none(&rp_info->rp)) |
654 | continue; | |
655 | ||
656 | old_i_am_rp = rp_info->i_am_rp; | |
fec883d9 | 657 | pim_rp_check_interfaces(pim, rp_info); |
d62a17ae | 658 | |
659 | if (old_i_am_rp != rp_info->i_am_rp) { | |
660 | i_am_rp_changed = true; | |
661 | if (PIM_DEBUG_ZEBRA) { | |
662 | char rp[PREFIX_STRLEN]; | |
663 | pim_addr_dump("<rp?>", &rp_info->rp.rpf_addr, | |
664 | rp, sizeof(rp)); | |
665 | if (rp_info->i_am_rp) { | |
666 | zlog_debug("%s: %s: i am rp", __func__, | |
667 | rp); | |
668 | } else { | |
669 | zlog_debug("%s: %s: i am no longer rp", | |
670 | __func__, rp); | |
671 | } | |
672 | } | |
673 | } | |
674 | } | |
675 | ||
676 | if (i_am_rp_changed) { | |
472ad383 | 677 | pim_msdp_i_am_rp_changed(pim); |
d62a17ae | 678 | } |
54b97c74 DS |
679 | } |
680 | ||
681 | /* | |
682 | * I_am_RP(G) is true if the group-to-RP mapping indicates that | |
683 | * this router is the RP for the group. | |
684 | * | |
685 | * Since we only have static RP, all groups are part of this RP | |
686 | */ | |
d9c9a9ee | 687 | int pim_rp_i_am_rp(struct pim_instance *pim, struct in_addr group) |
54b97c74 | 688 | { |
d62a17ae | 689 | struct prefix g; |
690 | struct rp_info *rp_info; | |
36d6bd7d | 691 | |
d62a17ae | 692 | memset(&g, 0, sizeof(g)); |
693 | g.family = AF_INET; | |
694 | g.prefixlen = 32; | |
695 | g.u.prefix4 = group; | |
36d6bd7d | 696 | |
d9c9a9ee | 697 | rp_info = pim_rp_find_match_group(pim, &g); |
36d6bd7d | 698 | |
d62a17ae | 699 | if (rp_info) |
700 | return rp_info->i_am_rp; | |
36d6bd7d | 701 | |
d62a17ae | 702 | return 0; |
54b97c74 DS |
703 | } |
704 | ||
71694057 DS |
705 | /* |
706 | * RP(G) | |
707 | * | |
708 | * Return the RP that the Group belongs too. | |
709 | */ | |
fec883d9 | 710 | struct pim_rpf *pim_rp_g(struct pim_instance *pim, struct in_addr group) |
71694057 | 711 | { |
d62a17ae | 712 | struct prefix g; |
713 | struct rp_info *rp_info; | |
714 | ||
715 | memset(&g, 0, sizeof(g)); | |
716 | g.family = AF_INET; | |
717 | g.prefixlen = 32; | |
718 | g.u.prefix4 = group; | |
719 | ||
d9c9a9ee | 720 | rp_info = pim_rp_find_match_group(pim, &g); |
d62a17ae | 721 | |
722 | if (rp_info) { | |
723 | struct prefix nht_p; | |
724 | struct pim_nexthop_cache pnc; | |
725 | /* Register addr with Zebra NHT */ | |
726 | nht_p.family = AF_INET; | |
727 | nht_p.prefixlen = IPV4_MAX_BITLEN; | |
728 | nht_p.u.prefix4 = rp_info->rp.rpf_addr.u.prefix4; | |
729 | if (PIM_DEBUG_PIM_TRACE) { | |
730 | char buf[PREFIX2STR_BUFFER]; | |
731 | char buf1[PREFIX2STR_BUFFER]; | |
732 | prefix2str(&nht_p, buf, sizeof(buf)); | |
733 | prefix2str(&rp_info->group, buf1, sizeof(buf1)); | |
734 | zlog_debug( | |
735 | "%s: NHT Register RP addr %s grp %s with Zebra", | |
736 | __PRETTY_FUNCTION__, buf, buf1); | |
737 | } | |
738 | memset(&pnc, 0, sizeof(struct pim_nexthop_cache)); | |
fec883d9 DS |
739 | if (pim_find_or_track_nexthop(pim, &nht_p, NULL, rp_info, &pnc)) |
740 | pim_ecmp_nexthop_search(pim, &pnc, | |
d62a17ae | 741 | &rp_info->rp.source_nexthop, |
742 | &nht_p, &rp_info->group, 1); | |
cb9c7c50 | 743 | else { |
d62a17ae | 744 | if (PIM_DEBUG_ZEBRA) { |
745 | char buf[PREFIX2STR_BUFFER]; | |
746 | char buf1[PREFIX2STR_BUFFER]; | |
747 | prefix2str(&nht_p, buf, sizeof(buf)); | |
748 | prefix2str(&g, buf1, sizeof(buf1)); | |
749 | zlog_debug( | |
750 | "%s: Nexthop cache not found for RP %s grp %s register with Zebra", | |
751 | __PRETTY_FUNCTION__, buf, buf1); | |
752 | } | |
753 | pim_rpf_set_refresh_time(); | |
d9c9a9ee | 754 | pim_nexthop_lookup(pim, &rp_info->rp.source_nexthop, |
d62a17ae | 755 | rp_info->rp.rpf_addr.u.prefix4, 1); |
756 | } | |
757 | return (&rp_info->rp); | |
758 | } | |
759 | ||
760 | // About to Go Down | |
761 | return NULL; | |
71694057 DS |
762 | } |
763 | ||
8f5f5e91 DS |
764 | /* |
765 | * Set the upstream IP address we want to talk to based upon | |
766 | * the rp configured and the source address | |
767 | * | |
768 | * If we have don't have a RP configured and the source address is * | |
769 | * then return failure. | |
770 | * | |
771 | */ | |
d9c9a9ee DS |
772 | int pim_rp_set_upstream_addr(struct pim_instance *pim, struct in_addr *up, |
773 | struct in_addr source, struct in_addr group) | |
8f5f5e91 | 774 | { |
d62a17ae | 775 | struct rp_info *rp_info; |
776 | struct prefix g; | |
36d6bd7d | 777 | |
d62a17ae | 778 | memset(&g, 0, sizeof(g)); |
779 | g.family = AF_INET; | |
780 | g.prefixlen = 32; | |
781 | g.u.prefix4 = group; | |
36d6bd7d | 782 | |
d9c9a9ee | 783 | rp_info = pim_rp_find_match_group(pim, &g); |
36d6bd7d | 784 | |
d62a17ae | 785 | if ((pim_rpf_addr_is_inaddr_none(&rp_info->rp)) |
786 | && (source.s_addr == INADDR_ANY)) { | |
787 | if (PIM_DEBUG_PIM_TRACE) | |
788 | zlog_debug("%s: Received a (*,G) with no RP configured", | |
789 | __PRETTY_FUNCTION__); | |
790 | return 0; | |
791 | } | |
8f5f5e91 | 792 | |
d62a17ae | 793 | *up = (source.s_addr == INADDR_ANY) ? rp_info->rp.rpf_addr.u.prefix4 |
794 | : source; | |
8f5f5e91 | 795 | |
d62a17ae | 796 | return 1; |
8f5f5e91 | 797 | } |
75a26779 | 798 | |
0c8b717e DS |
799 | int pim_rp_config_write(struct pim_instance *pim, struct vty *vty, |
800 | const char *spaces) | |
75a26779 | 801 | { |
d62a17ae | 802 | struct listnode *node; |
803 | struct rp_info *rp_info; | |
804 | char rp_buffer[32]; | |
805 | char group_buffer[32]; | |
806 | int count = 0; | |
807 | ||
d9c9a9ee | 808 | for (ALL_LIST_ELEMENTS_RO(pim->rp_list, node, rp_info)) { |
d62a17ae | 809 | if (pim_rpf_addr_is_inaddr_none(&rp_info->rp)) |
810 | continue; | |
811 | ||
812 | if (rp_info->plist) | |
0c8b717e | 813 | vty_out(vty, "%sip pim rp %s prefix-list %s\n", spaces, |
d62a17ae | 814 | inet_ntop(AF_INET, |
815 | &rp_info->rp.rpf_addr.u.prefix4, | |
816 | rp_buffer, 32), | |
817 | rp_info->plist); | |
818 | else | |
0c8b717e | 819 | vty_out(vty, "%sip pim rp %s %s\n", spaces, |
d62a17ae | 820 | inet_ntop(AF_INET, |
821 | &rp_info->rp.rpf_addr.u.prefix4, | |
822 | rp_buffer, 32), | |
823 | prefix2str(&rp_info->group, group_buffer, 32)); | |
824 | count++; | |
825 | } | |
826 | ||
827 | return count; | |
75a26779 DS |
828 | } |
829 | ||
fec883d9 DS |
830 | int pim_rp_check_is_my_ip_address(struct pim_instance *pim, |
831 | struct in_addr group, | |
d62a17ae | 832 | struct in_addr dest_addr) |
75a26779 | 833 | { |
d62a17ae | 834 | struct rp_info *rp_info; |
835 | struct prefix g; | |
836 | ||
837 | memset(&g, 0, sizeof(g)); | |
838 | g.family = AF_INET; | |
839 | g.prefixlen = 32; | |
840 | g.u.prefix4 = group; | |
841 | ||
d9c9a9ee | 842 | rp_info = pim_rp_find_match_group(pim, &g); |
d62a17ae | 843 | /* |
844 | * See if we can short-cut some? | |
845 | * This might not make sense if we ever leave a static RP | |
846 | * type of configuration. | |
847 | * Note - Premature optimization might bite our patooeys' here. | |
848 | */ | |
d9c9a9ee | 849 | if (I_am_RP(pim, group)) { |
d62a17ae | 850 | if (dest_addr.s_addr == rp_info->rp.rpf_addr.u.prefix4.s_addr) |
851 | return 1; | |
852 | } | |
853 | ||
fec883d9 | 854 | if (if_lookup_exact_address(&dest_addr, AF_INET, pim->vrf_id)) |
d62a17ae | 855 | return 1; |
856 | ||
857 | return 0; | |
75a26779 | 858 | } |
00d07c6f | 859 | |
64c86530 | 860 | void pim_rp_show_information(struct pim_instance *pim, struct vty *vty, |
d9c9a9ee | 861 | u_char uj) |
00d07c6f | 862 | { |
d62a17ae | 863 | struct rp_info *rp_info; |
864 | struct rp_info *prev_rp_info = NULL; | |
865 | struct listnode *node; | |
866 | ||
867 | json_object *json = NULL; | |
868 | json_object *json_rp_rows = NULL; | |
869 | json_object *json_row = NULL; | |
870 | ||
871 | if (uj) | |
872 | json = json_object_new_object(); | |
873 | else | |
874 | vty_out(vty, | |
875 | "RP address group/prefix-list OIF I am RP\n"); | |
876 | ||
d9c9a9ee | 877 | for (ALL_LIST_ELEMENTS_RO(pim->rp_list, node, rp_info)) { |
d62a17ae | 878 | if (!pim_rpf_addr_is_inaddr_none(&rp_info->rp)) { |
879 | char buf[48]; | |
880 | ||
881 | if (uj) { | |
882 | /* | |
883 | * If we have moved on to a new RP then add the | |
884 | * entry for the previous RP | |
885 | */ | |
886 | if (prev_rp_info | |
887 | && prev_rp_info->rp.rpf_addr.u.prefix4 | |
888 | .s_addr | |
889 | != rp_info->rp.rpf_addr.u.prefix4 | |
890 | .s_addr) { | |
891 | json_object_object_add( | |
892 | json, | |
893 | inet_ntoa(prev_rp_info->rp | |
894 | .rpf_addr.u | |
895 | .prefix4), | |
896 | json_rp_rows); | |
897 | json_rp_rows = NULL; | |
898 | } | |
899 | ||
900 | if (!json_rp_rows) | |
901 | json_rp_rows = json_object_new_array(); | |
902 | ||
903 | json_row = json_object_new_object(); | |
904 | if (rp_info->rp.source_nexthop.interface) | |
905 | json_object_string_add( | |
906 | json_row, "outboundInterface", | |
907 | rp_info->rp.source_nexthop | |
908 | .interface->name); | |
909 | ||
910 | if (rp_info->i_am_rp) | |
911 | json_object_boolean_true_add(json_row, | |
912 | "iAmRP"); | |
913 | ||
914 | if (rp_info->plist) | |
915 | json_object_string_add(json_row, | |
916 | "prefixList", | |
917 | rp_info->plist); | |
918 | else | |
919 | json_object_string_add( | |
920 | json_row, "group", | |
921 | prefix2str(&rp_info->group, buf, | |
922 | 48)); | |
923 | ||
924 | json_object_array_add(json_rp_rows, json_row); | |
925 | } else { | |
926 | vty_out(vty, "%-15s ", | |
927 | inet_ntoa(rp_info->rp.rpf_addr.u | |
928 | .prefix4)); | |
929 | ||
930 | if (rp_info->plist) | |
931 | vty_out(vty, "%-18s ", rp_info->plist); | |
932 | else | |
933 | vty_out(vty, "%-18s ", | |
934 | prefix2str(&rp_info->group, buf, | |
935 | 48)); | |
936 | ||
937 | if (rp_info->rp.source_nexthop.interface) | |
938 | vty_out(vty, "%-10s ", | |
939 | rp_info->rp.source_nexthop | |
940 | .interface->name); | |
941 | else | |
942 | vty_out(vty, "%-10s ", "(Unknown)"); | |
943 | ||
944 | if (rp_info->i_am_rp) | |
945 | vty_out(vty, "yes\n"); | |
946 | else | |
947 | vty_out(vty, "no\n"); | |
948 | } | |
949 | ||
950 | prev_rp_info = rp_info; | |
951 | } | |
952 | } | |
953 | ||
954 | if (uj) { | |
955 | if (prev_rp_info && json_rp_rows) | |
956 | json_object_object_add( | |
957 | json, | |
958 | inet_ntoa(prev_rp_info->rp.rpf_addr.u.prefix4), | |
959 | json_rp_rows); | |
960 | ||
9d303b37 DL |
961 | vty_out(vty, "%s\n", json_object_to_json_string_ext( |
962 | json, JSON_C_TO_STRING_PRETTY)); | |
d62a17ae | 963 | json_object_free(json); |
964 | } | |
00d07c6f | 965 | } |
cba44481 | 966 | |
fec883d9 | 967 | void pim_resolve_rp_nh(struct pim_instance *pim) |
cba44481 | 968 | { |
d62a17ae | 969 | struct listnode *node = NULL; |
970 | struct rp_info *rp_info = NULL; | |
971 | struct nexthop *nh_node = NULL; | |
972 | struct prefix nht_p; | |
973 | struct pim_nexthop_cache pnc; | |
974 | struct pim_neighbor *nbr = NULL; | |
975 | ||
d9c9a9ee | 976 | for (ALL_LIST_ELEMENTS_RO(pim->rp_list, node, rp_info)) { |
d62a17ae | 977 | if (rp_info->rp.rpf_addr.u.prefix4.s_addr == INADDR_NONE) |
978 | continue; | |
979 | ||
980 | nht_p.family = AF_INET; | |
981 | nht_p.prefixlen = IPV4_MAX_BITLEN; | |
982 | nht_p.u.prefix4 = rp_info->rp.rpf_addr.u.prefix4; | |
983 | memset(&pnc, 0, sizeof(struct pim_nexthop_cache)); | |
fec883d9 | 984 | if (!pim_find_or_track_nexthop(pim, &nht_p, NULL, rp_info, |
25bdac42 | 985 | &pnc)) |
cb9c7c50 DS |
986 | continue; |
987 | ||
988 | for (nh_node = pnc.nexthop; nh_node; nh_node = nh_node->next) { | |
989 | if (nh_node->gate.ipv4.s_addr != 0) | |
990 | continue; | |
991 | ||
992 | struct interface *ifp1 = if_lookup_by_index( | |
fec883d9 | 993 | nh_node->ifindex, pim->vrf_id); |
cb9c7c50 DS |
994 | nbr = pim_neighbor_find_if(ifp1); |
995 | if (!nbr) | |
996 | continue; | |
997 | ||
998 | nh_node->gate.ipv4 = nbr->source_addr; | |
999 | if (PIM_DEBUG_TRACE) { | |
1000 | char str[PREFIX_STRLEN]; | |
1001 | char str1[INET_ADDRSTRLEN]; | |
1002 | pim_inet4_dump("<nht_nbr?>", nbr->source_addr, | |
1003 | str1, sizeof(str1)); | |
1004 | pim_addr_dump("<nht_addr?>", &nht_p, str, | |
1005 | sizeof(str)); | |
1006 | zlog_debug( | |
1007 | "%s: addr %s new nexthop addr %s interface %s", | |
1008 | __PRETTY_FUNCTION__, str, str1, | |
1009 | ifp1->name); | |
d62a17ae | 1010 | } |
1011 | } | |
1012 | } | |
cba44481 | 1013 | } |