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12e41d03 DL |
1 | /* |
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. | |
ac4d0be5 | 14 | |
12e41d03 DL |
15 | You should have received a copy of the GNU General Public License |
16 | along with this program; see the file COPYING; if not, write to the | |
17 | Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, | |
18 | MA 02110-1301 USA | |
12e41d03 DL |
19 | */ |
20 | ||
21 | #include <zebra.h> | |
22 | ||
23 | #include "log.h" | |
24 | #include "memory.h" | |
25 | #include "linklist.h" | |
744d91b3 | 26 | #include "if.h" |
040d86ad DS |
27 | #include "hash.h" |
28 | #include "jhash.h" | |
12e41d03 DL |
29 | |
30 | #include "pimd.h" | |
31 | #include "pim_oil.h" | |
32 | #include "pim_str.h" | |
33 | #include "pim_iface.h" | |
37653d4f | 34 | #include "pim_time.h" |
12e41d03 | 35 | |
040d86ad DS |
36 | struct list *pim_channel_oil_list = NULL; |
37 | struct hash *pim_channel_oil_hash = NULL; | |
38 | ||
ac4d0be5 | 39 | char *pim_channel_oil_dump(struct channel_oil *c_oil, char *buf, size_t size) |
781a1745 | 40 | { |
ac4d0be5 | 41 | struct prefix_sg sg; |
42 | int i; | |
43 | ||
44 | memset(buf, 0, size); | |
45 | sg.src = c_oil->oil.mfcc_origin; | |
46 | sg.grp = c_oil->oil.mfcc_mcastgrp; | |
47 | sprintf(buf, "%s IIF: %d, OIFS: ", pim_str_sg_dump(&sg), | |
48 | c_oil->oil.mfcc_parent); | |
49 | ||
50 | for (i = 0; i < MAXVIFS; i++) { | |
51 | if (c_oil->oil.mfcc_ttls[i] != 0) { | |
52 | char buf1[10]; | |
53 | sprintf(buf1, "%d ", i); | |
54 | strcat(buf, buf1); | |
55 | } | |
56 | } | |
57 | ||
58 | return buf; | |
781a1745 DS |
59 | } |
60 | ||
ac4d0be5 | 61 | static int pim_channel_oil_compare(struct channel_oil *c1, |
62 | struct channel_oil *c2) | |
040d86ad | 63 | { |
ac4d0be5 | 64 | if (ntohl(c1->oil.mfcc_mcastgrp.s_addr) |
65 | < ntohl(c2->oil.mfcc_mcastgrp.s_addr)) | |
66 | return -1; | |
040d86ad | 67 | |
ac4d0be5 | 68 | if (ntohl(c1->oil.mfcc_mcastgrp.s_addr) |
69 | > ntohl(c2->oil.mfcc_mcastgrp.s_addr)) | |
70 | return 1; | |
040d86ad | 71 | |
ac4d0be5 | 72 | if (ntohl(c1->oil.mfcc_origin.s_addr) |
73 | < ntohl(c2->oil.mfcc_origin.s_addr)) | |
74 | return -1; | |
040d86ad | 75 | |
ac4d0be5 | 76 | if (ntohl(c1->oil.mfcc_origin.s_addr) |
77 | > ntohl(c2->oil.mfcc_origin.s_addr)) | |
78 | return 1; | |
040d86ad | 79 | |
ac4d0be5 | 80 | return 0; |
040d86ad DS |
81 | } |
82 | ||
ac4d0be5 | 83 | static int pim_oil_equal(const void *arg1, const void *arg2) |
040d86ad | 84 | { |
ac4d0be5 | 85 | const struct channel_oil *c1 = (const struct channel_oil *)arg1; |
86 | const struct channel_oil *c2 = (const struct channel_oil *)arg2; | |
040d86ad | 87 | |
ac4d0be5 | 88 | if ((c1->oil.mfcc_mcastgrp.s_addr == c2->oil.mfcc_mcastgrp.s_addr) |
89 | && (c1->oil.mfcc_origin.s_addr == c2->oil.mfcc_origin.s_addr)) | |
90 | return 1; | |
040d86ad | 91 | |
ac4d0be5 | 92 | return 0; |
040d86ad DS |
93 | } |
94 | ||
ac4d0be5 | 95 | static unsigned int pim_oil_hash_key(void *arg) |
040d86ad | 96 | { |
ac4d0be5 | 97 | struct channel_oil *oil = (struct channel_oil *)arg; |
040d86ad | 98 | |
ac4d0be5 | 99 | return jhash_2words(oil->oil.mfcc_mcastgrp.s_addr, |
100 | oil->oil.mfcc_origin.s_addr, 0); | |
040d86ad DS |
101 | } |
102 | ||
ac4d0be5 | 103 | void pim_oil_init(void) |
040d86ad | 104 | { |
ac4d0be5 | 105 | pim_channel_oil_hash = |
106 | hash_create_size(8192, pim_oil_hash_key, pim_oil_equal); | |
107 | ||
108 | pim_channel_oil_list = list_new(); | |
109 | if (!pim_channel_oil_list) { | |
110 | zlog_err("%s %s: failure: channel_oil_list=list_new()", | |
111 | __FILE__, __PRETTY_FUNCTION__); | |
112 | return; | |
113 | } | |
114 | pim_channel_oil_list->del = (void (*)(void *))pim_channel_oil_free; | |
115 | pim_channel_oil_list->cmp = | |
116 | (int (*)(void *, void *))pim_channel_oil_compare; | |
040d86ad DS |
117 | } |
118 | ||
ac4d0be5 | 119 | void pim_oil_terminate(void) |
040d86ad | 120 | { |
ac4d0be5 | 121 | if (pim_channel_oil_list) |
122 | list_free(pim_channel_oil_list); | |
123 | pim_channel_oil_list = NULL; | |
040d86ad | 124 | |
ac4d0be5 | 125 | if (pim_channel_oil_hash) |
126 | hash_free(pim_channel_oil_hash); | |
127 | pim_channel_oil_hash = NULL; | |
040d86ad DS |
128 | } |
129 | ||
12e41d03 DL |
130 | void pim_channel_oil_free(struct channel_oil *c_oil) |
131 | { | |
ac4d0be5 | 132 | XFREE(MTYPE_PIM_CHANNEL_OIL, c_oil); |
12e41d03 DL |
133 | } |
134 | ||
ac4d0be5 | 135 | static struct channel_oil *pim_find_channel_oil(struct prefix_sg *sg) |
12e41d03 | 136 | { |
ac4d0be5 | 137 | struct channel_oil *c_oil = NULL; |
138 | struct channel_oil lookup; | |
d270b216 | 139 | |
ac4d0be5 | 140 | lookup.oil.mfcc_mcastgrp = sg->grp; |
141 | lookup.oil.mfcc_origin = sg->src; | |
d270b216 | 142 | |
ac4d0be5 | 143 | c_oil = hash_lookup(pim_channel_oil_hash, &lookup); |
d270b216 | 144 | |
ac4d0be5 | 145 | return c_oil; |
12e41d03 DL |
146 | } |
147 | ||
d270b216 DS |
148 | struct channel_oil *pim_channel_oil_add(struct prefix_sg *sg, |
149 | int input_vif_index) | |
12e41d03 | 150 | { |
ac4d0be5 | 151 | struct channel_oil *c_oil; |
152 | struct interface *ifp; | |
153 | ||
154 | c_oil = pim_find_channel_oil(sg); | |
155 | if (c_oil) { | |
156 | if (c_oil->oil.mfcc_parent != input_vif_index) { | |
157 | c_oil->oil_inherited_rescan = 1; | |
158 | if (PIM_DEBUG_MROUTE) | |
159 | zlog_debug( | |
160 | "%s: Existing channel oil %s points to %d, modifying to point at %d", | |
161 | __PRETTY_FUNCTION__, | |
162 | pim_str_sg_dump(sg), | |
163 | c_oil->oil.mfcc_parent, | |
164 | input_vif_index); | |
165 | } | |
166 | c_oil->oil.mfcc_parent = input_vif_index; | |
167 | ++c_oil->oil_ref_count; | |
168 | c_oil->up = pim_upstream_find( | |
169 | sg); // channel might be present prior to upstream | |
170 | return c_oil; | |
171 | } | |
172 | ||
173 | ifp = pim_if_find_by_vif_index(input_vif_index); | |
174 | if (!ifp) { | |
175 | /* warning only */ | |
176 | zlog_warn( | |
177 | "%s: (S,G)=%s could not find input interface for input_vif_index=%d", | |
178 | __PRETTY_FUNCTION__, pim_str_sg_dump(sg), | |
179 | input_vif_index); | |
180 | } | |
181 | ||
182 | c_oil = XCALLOC(MTYPE_PIM_CHANNEL_OIL, sizeof(*c_oil)); | |
183 | if (!c_oil) { | |
184 | zlog_err("PIM XCALLOC(%zu) failure", sizeof(*c_oil)); | |
185 | return NULL; | |
186 | } | |
187 | ||
188 | c_oil->oil.mfcc_mcastgrp = sg->grp; | |
189 | c_oil->oil.mfcc_origin = sg->src; | |
190 | c_oil = hash_get(pim_channel_oil_hash, c_oil, hash_alloc_intern); | |
191 | ||
192 | c_oil->oil.mfcc_parent = input_vif_index; | |
193 | c_oil->oil_ref_count = 1; | |
194 | c_oil->installed = 0; | |
195 | c_oil->up = pim_upstream_find(sg); | |
196 | ||
197 | listnode_add_sort(pim_channel_oil_list, c_oil); | |
198 | ||
199 | return c_oil; | |
12e41d03 DL |
200 | } |
201 | ||
12e41d03 DL |
202 | void pim_channel_oil_del(struct channel_oil *c_oil) |
203 | { | |
ac4d0be5 | 204 | --c_oil->oil_ref_count; |
205 | ||
206 | if (c_oil->oil_ref_count < 1) { | |
207 | /* | |
208 | * notice that listnode_delete() can't be moved | |
209 | * into pim_channel_oil_free() because the later is | |
210 | * called by list_delete_all_node() | |
211 | */ | |
212 | c_oil->up = NULL; | |
213 | listnode_delete(pim_channel_oil_list, c_oil); | |
214 | hash_release(pim_channel_oil_hash, c_oil); | |
215 | ||
216 | pim_channel_oil_free(c_oil); | |
217 | } | |
12e41d03 | 218 | } |
1865a44a | 219 | |
ac4d0be5 | 220 | int pim_channel_del_oif(struct channel_oil *channel_oil, struct interface *oif, |
221 | uint32_t proto_mask) | |
887fa014 | 222 | { |
ac4d0be5 | 223 | struct pim_interface *pim_ifp; |
224 | ||
225 | zassert(channel_oil); | |
226 | zassert(oif); | |
227 | ||
228 | pim_ifp = oif->info; | |
229 | ||
230 | /* | |
231 | * Don't do anything if we've been asked to remove a source | |
232 | * that is not actually on it. | |
233 | */ | |
234 | if (!(channel_oil->oif_flags[pim_ifp->mroute_vif_index] & proto_mask)) { | |
235 | if (PIM_DEBUG_MROUTE) { | |
236 | char group_str[INET_ADDRSTRLEN]; | |
237 | char source_str[INET_ADDRSTRLEN]; | |
238 | pim_inet4_dump("<group?>", | |
239 | channel_oil->oil.mfcc_mcastgrp, | |
240 | group_str, sizeof(group_str)); | |
241 | pim_inet4_dump("<source?>", | |
242 | channel_oil->oil.mfcc_origin, source_str, | |
243 | sizeof(source_str)); | |
244 | zlog_debug( | |
245 | "%s %s: no existing protocol mask %u(%u) for requested OIF %s (vif_index=%d, min_ttl=%d) for channel (S,G)=(%s,%s)", | |
246 | __FILE__, __PRETTY_FUNCTION__, proto_mask, | |
247 | channel_oil | |
248 | ->oif_flags[pim_ifp->mroute_vif_index], | |
249 | oif->name, pim_ifp->mroute_vif_index, | |
250 | channel_oil->oil | |
251 | .mfcc_ttls[pim_ifp->mroute_vif_index], | |
252 | source_str, group_str); | |
253 | } | |
254 | return 0; | |
887fa014 | 255 | } |
ac4d0be5 | 256 | |
257 | channel_oil->oif_flags[pim_ifp->mroute_vif_index] &= ~proto_mask; | |
258 | ||
259 | if (channel_oil->oif_flags[pim_ifp->mroute_vif_index]) { | |
260 | if (PIM_DEBUG_MROUTE) { | |
261 | char group_str[INET_ADDRSTRLEN]; | |
262 | char source_str[INET_ADDRSTRLEN]; | |
263 | pim_inet4_dump("<group?>", | |
264 | channel_oil->oil.mfcc_mcastgrp, | |
265 | group_str, sizeof(group_str)); | |
266 | pim_inet4_dump("<source?>", | |
267 | channel_oil->oil.mfcc_origin, source_str, | |
268 | sizeof(source_str)); | |
269 | zlog_debug( | |
270 | "%s %s: other protocol masks remain for requested OIF %s (vif_index=%d, min_ttl=%d) for channel (S,G)=(%s,%s)", | |
271 | __FILE__, __PRETTY_FUNCTION__, oif->name, | |
272 | pim_ifp->mroute_vif_index, | |
273 | channel_oil->oil | |
274 | .mfcc_ttls[pim_ifp->mroute_vif_index], | |
275 | source_str, group_str); | |
276 | } | |
277 | return 0; | |
278 | } | |
279 | ||
280 | channel_oil->oil.mfcc_ttls[pim_ifp->mroute_vif_index] = 0; | |
281 | ||
282 | if (pim_mroute_add(channel_oil, __PRETTY_FUNCTION__)) { | |
283 | if (PIM_DEBUG_MROUTE) { | |
284 | char group_str[INET_ADDRSTRLEN]; | |
285 | char source_str[INET_ADDRSTRLEN]; | |
286 | pim_inet4_dump("<group?>", | |
287 | channel_oil->oil.mfcc_mcastgrp, | |
288 | group_str, sizeof(group_str)); | |
289 | pim_inet4_dump("<source?>", | |
290 | channel_oil->oil.mfcc_origin, source_str, | |
291 | sizeof(source_str)); | |
292 | zlog_debug( | |
293 | "%s %s: could not remove output interface %s (vif_index=%d) for channel (S,G)=(%s,%s)", | |
294 | __FILE__, __PRETTY_FUNCTION__, oif->name, | |
295 | pim_ifp->mroute_vif_index, source_str, | |
296 | group_str); | |
297 | } | |
298 | return -1; | |
887fa014 | 299 | } |
ac4d0be5 | 300 | |
301 | --channel_oil->oil_size; | |
302 | ||
303 | if (PIM_DEBUG_MROUTE) { | |
304 | char group_str[INET_ADDRSTRLEN]; | |
305 | char source_str[INET_ADDRSTRLEN]; | |
306 | pim_inet4_dump("<group?>", channel_oil->oil.mfcc_mcastgrp, | |
307 | group_str, sizeof(group_str)); | |
308 | pim_inet4_dump("<source?>", channel_oil->oil.mfcc_origin, | |
309 | source_str, sizeof(source_str)); | |
310 | zlog_debug( | |
311 | "%s %s: (S,G)=(%s,%s): proto_mask=%u IIF:%d OIF=%s vif_index=%d", | |
312 | __FILE__, __PRETTY_FUNCTION__, source_str, group_str, | |
313 | proto_mask, channel_oil->oil.mfcc_parent, oif->name, | |
314 | pim_ifp->mroute_vif_index); | |
315 | } | |
316 | ||
317 | return 0; | |
887fa014 DS |
318 | } |
319 | ||
320 | ||
ac4d0be5 | 321 | int pim_channel_add_oif(struct channel_oil *channel_oil, struct interface *oif, |
322 | uint32_t proto_mask) | |
1865a44a | 323 | { |
ac4d0be5 | 324 | struct pim_interface *pim_ifp; |
325 | int old_ttl; | |
326 | ||
327 | /* | |
328 | * If we've gotten here we've gone bad, but let's | |
329 | * not take down pim | |
330 | */ | |
331 | if (!channel_oil) { | |
332 | zlog_warn("Attempt to Add OIF for non-existent channel oil"); | |
333 | return -1; | |
334 | } | |
1865a44a | 335 | |
ac4d0be5 | 336 | pim_ifp = oif->info; |
1865a44a | 337 | |
1865a44a | 338 | #ifdef PIM_ENFORCE_LOOPFREE_MFC |
ac4d0be5 | 339 | /* |
340 | Prevent creating MFC entry with OIF=IIF. | |
341 | ||
342 | This is a protection against implementation mistakes. | |
343 | ||
344 | PIM protocol implicitely ensures loopfree multicast topology. | |
345 | ||
346 | IGMP must be protected against adding looped MFC entries created | |
347 | by both source and receiver attached to the same interface. See | |
348 | TODO T22. | |
349 | */ | |
350 | if (pim_ifp->mroute_vif_index == channel_oil->oil.mfcc_parent) { | |
351 | channel_oil->oil_inherited_rescan = 1; | |
352 | if (PIM_DEBUG_MROUTE) { | |
353 | char group_str[INET_ADDRSTRLEN]; | |
354 | char source_str[INET_ADDRSTRLEN]; | |
355 | pim_inet4_dump("<group?>", | |
356 | channel_oil->oil.mfcc_mcastgrp, | |
357 | group_str, sizeof(group_str)); | |
358 | pim_inet4_dump("<source?>", | |
359 | channel_oil->oil.mfcc_origin, source_str, | |
360 | sizeof(source_str)); | |
361 | zlog_debug( | |
362 | "%s %s: refusing protocol mask %u request for IIF=OIF=%s (vif_index=%d) for channel (S,G)=(%s,%s)", | |
363 | __FILE__, __PRETTY_FUNCTION__, proto_mask, | |
364 | oif->name, pim_ifp->mroute_vif_index, | |
365 | source_str, group_str); | |
366 | } | |
367 | return -2; | |
368 | } | |
1865a44a DS |
369 | #endif |
370 | ||
ac4d0be5 | 371 | /* Prevent single protocol from subscribing same interface to |
372 | channel (S,G) multiple times */ | |
373 | if (channel_oil->oif_flags[pim_ifp->mroute_vif_index] & proto_mask) { | |
374 | if (PIM_DEBUG_MROUTE) { | |
375 | char group_str[INET_ADDRSTRLEN]; | |
376 | char source_str[INET_ADDRSTRLEN]; | |
377 | pim_inet4_dump("<group?>", | |
378 | channel_oil->oil.mfcc_mcastgrp, | |
379 | group_str, sizeof(group_str)); | |
380 | pim_inet4_dump("<source?>", | |
381 | channel_oil->oil.mfcc_origin, source_str, | |
382 | sizeof(source_str)); | |
383 | zlog_debug( | |
384 | "%s %s: existing protocol mask %u requested OIF %s (vif_index=%d, min_ttl=%d) for channel (S,G)=(%s,%s)", | |
385 | __FILE__, __PRETTY_FUNCTION__, proto_mask, | |
386 | oif->name, pim_ifp->mroute_vif_index, | |
387 | channel_oil->oil | |
388 | .mfcc_ttls[pim_ifp->mroute_vif_index], | |
389 | source_str, group_str); | |
390 | } | |
391 | return -3; | |
392 | } | |
393 | ||
394 | /* Allow other protocol to request subscription of same interface to | |
395 | * channel (S,G), we need to note this information | |
396 | */ | |
397 | if (channel_oil->oif_flags[pim_ifp->mroute_vif_index] | |
398 | & PIM_OIF_FLAG_PROTO_ANY) { | |
399 | ||
400 | channel_oil->oif_creation[pim_ifp->mroute_vif_index] = | |
401 | pim_time_monotonic_sec(); | |
402 | channel_oil->oif_flags[pim_ifp->mroute_vif_index] |= proto_mask; | |
403 | /* Check the OIF really exists before returning, and only log | |
404 | warning otherwise */ | |
405 | if (channel_oil->oil.mfcc_ttls[pim_ifp->mroute_vif_index] < 1) { | |
406 | { | |
407 | char group_str[INET_ADDRSTRLEN]; | |
408 | char source_str[INET_ADDRSTRLEN]; | |
409 | pim_inet4_dump("<group?>", | |
410 | channel_oil->oil.mfcc_mcastgrp, | |
411 | group_str, sizeof(group_str)); | |
412 | pim_inet4_dump("<source?>", | |
413 | channel_oil->oil.mfcc_origin, | |
414 | source_str, sizeof(source_str)); | |
415 | zlog_warn( | |
416 | "%s %s: new protocol mask %u requested nonexistent OIF %s (vif_index=%d, min_ttl=%d) for channel (S,G)=(%s,%s)", | |
417 | __FILE__, __PRETTY_FUNCTION__, | |
418 | proto_mask, oif->name, | |
419 | pim_ifp->mroute_vif_index, | |
420 | channel_oil->oil.mfcc_ttls | |
421 | [pim_ifp->mroute_vif_index], | |
422 | source_str, group_str); | |
423 | } | |
424 | } | |
425 | ||
426 | return 0; | |
427 | } | |
428 | ||
429 | old_ttl = channel_oil->oil.mfcc_ttls[pim_ifp->mroute_vif_index]; | |
430 | ||
431 | if (old_ttl > 0) { | |
432 | if (PIM_DEBUG_MROUTE) { | |
433 | char group_str[INET_ADDRSTRLEN]; | |
434 | char source_str[INET_ADDRSTRLEN]; | |
435 | pim_inet4_dump("<group?>", | |
436 | channel_oil->oil.mfcc_mcastgrp, | |
437 | group_str, sizeof(group_str)); | |
438 | pim_inet4_dump("<source?>", | |
439 | channel_oil->oil.mfcc_origin, source_str, | |
440 | sizeof(source_str)); | |
441 | zlog_debug( | |
442 | "%s %s: interface %s (vif_index=%d) is existing output for channel (S,G)=(%s,%s)", | |
443 | __FILE__, __PRETTY_FUNCTION__, oif->name, | |
444 | pim_ifp->mroute_vif_index, source_str, | |
445 | group_str); | |
446 | } | |
447 | return -4; | |
448 | } | |
449 | ||
450 | channel_oil->oil.mfcc_ttls[pim_ifp->mroute_vif_index] = | |
451 | PIM_MROUTE_MIN_TTL; | |
452 | ||
453 | if (pim_mroute_add(channel_oil, __PRETTY_FUNCTION__)) { | |
454 | if (PIM_DEBUG_MROUTE) { | |
455 | char group_str[INET_ADDRSTRLEN]; | |
456 | char source_str[INET_ADDRSTRLEN]; | |
457 | pim_inet4_dump("<group?>", | |
458 | channel_oil->oil.mfcc_mcastgrp, | |
459 | group_str, sizeof(group_str)); | |
460 | pim_inet4_dump("<source?>", | |
461 | channel_oil->oil.mfcc_origin, source_str, | |
462 | sizeof(source_str)); | |
463 | zlog_debug( | |
464 | "%s %s: could not add output interface %s (vif_index=%d) for channel (S,G)=(%s,%s)", | |
465 | __FILE__, __PRETTY_FUNCTION__, oif->name, | |
466 | pim_ifp->mroute_vif_index, source_str, | |
467 | group_str); | |
468 | } | |
469 | ||
470 | channel_oil->oil.mfcc_ttls[pim_ifp->mroute_vif_index] = old_ttl; | |
471 | return -5; | |
472 | } | |
473 | ||
474 | channel_oil->oif_creation[pim_ifp->mroute_vif_index] = | |
475 | pim_time_monotonic_sec(); | |
476 | ++channel_oil->oil_size; | |
477 | channel_oil->oif_flags[pim_ifp->mroute_vif_index] |= proto_mask; | |
478 | ||
479 | if (PIM_DEBUG_MROUTE) { | |
480 | char group_str[INET_ADDRSTRLEN]; | |
481 | char source_str[INET_ADDRSTRLEN]; | |
482 | pim_inet4_dump("<group?>", channel_oil->oil.mfcc_mcastgrp, | |
483 | group_str, sizeof(group_str)); | |
484 | pim_inet4_dump("<source?>", channel_oil->oil.mfcc_origin, | |
485 | source_str, sizeof(source_str)); | |
486 | zlog_debug( | |
487 | "%s %s: (S,G)=(%s,%s): proto_mask=%u OIF=%s vif_index=%d: DONE", | |
488 | __FILE__, __PRETTY_FUNCTION__, source_str, group_str, | |
489 | proto_mask, oif->name, pim_ifp->mroute_vif_index); | |
490 | } | |
491 | ||
492 | return 0; | |
1865a44a | 493 | } |
ce0ddb4e | 494 | |
ac4d0be5 | 495 | int pim_channel_oil_empty(struct channel_oil *c_oil) |
ce0ddb4e | 496 | { |
ac4d0be5 | 497 | static uint32_t zero[MAXVIFS]; |
498 | static int inited = 0; | |
499 | ||
500 | if (!c_oil) | |
501 | return 1; | |
502 | /* | |
503 | * Not sure that this is necessary, but I would rather ensure | |
504 | * that this works. | |
505 | */ | |
506 | if (!inited) { | |
507 | memset(&zero, 0, sizeof(uint32_t) * MAXVIFS); | |
508 | inited = 1; | |
509 | } | |
510 | ||
511 | return !memcmp(c_oil->oif_flags, zero, MAXVIFS * sizeof(uint32_t)); | |
ce0ddb4e | 512 | } |