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Commit | Line | Data |
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718e3744 | 1 | /* zebra client |
2 | Copyright (C) 1997, 98, 99 Kunihiro Ishiguro | |
3 | ||
4 | This file is part of GNU Zebra. | |
5 | ||
6 | GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | under the terms of the GNU General Public License as published by the | |
8 | Free Software Foundation; either version 2, or (at your option) any | |
9 | later version. | |
10 | ||
11 | GNU Zebra 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. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Zebra; see the file COPYING. If not, write to the | |
18 | Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. */ | |
20 | ||
21 | #include <zebra.h> | |
22 | ||
23 | #include "command.h" | |
24 | #include "stream.h" | |
25 | #include "network.h" | |
26 | #include "prefix.h" | |
27 | #include "log.h" | |
28 | #include "sockunion.h" | |
29 | #include "zclient.h" | |
30 | #include "routemap.h" | |
31 | #include "thread.h" | |
32 | ||
33 | #include "bgpd/bgpd.h" | |
34 | #include "bgpd/bgp_route.h" | |
35 | #include "bgpd/bgp_attr.h" | |
36 | #include "bgpd/bgp_nexthop.h" | |
37 | #include "bgpd/bgp_zebra.h" | |
38 | #include "bgpd/bgp_fsm.h" | |
a39275d7 | 39 | #include "bgpd/bgp_debug.h" |
8196f13d | 40 | #include "bgpd/bgp_mpath.h" |
718e3744 | 41 | \f |
42 | /* All information about zebra. */ | |
228da428 | 43 | struct zclient *zclient = NULL; |
18a6dce6 | 44 | struct in_addr router_id_zebra; |
718e3744 | 45 | |
8196f13d JB |
46 | /* Growable buffer for nexthops sent to zebra */ |
47 | struct stream *bgp_nexthop_buf = NULL; | |
48 | ||
18a6dce6 | 49 | /* Router-id update message from zebra. */ |
94f2b392 | 50 | static int |
18a6dce6 | 51 | bgp_router_id_update (int command, struct zclient *zclient, zebra_size_t length) |
718e3744 | 52 | { |
18a6dce6 | 53 | struct prefix router_id; |
1eb8ef25 | 54 | struct listnode *node, *nnode; |
18a6dce6 | 55 | struct bgp *bgp; |
718e3744 | 56 | |
18a6dce6 | 57 | zebra_router_id_update_read(zclient->ibuf,&router_id); |
a39275d7 AS |
58 | |
59 | if (BGP_DEBUG(zebra, ZEBRA)) | |
60 | { | |
61 | char buf[128]; | |
62 | prefix2str(&router_id, buf, sizeof(buf)); | |
63 | zlog_debug("Zebra rcvd: router id update %s", buf); | |
64 | } | |
65 | ||
18a6dce6 | 66 | router_id_zebra = router_id.u.prefix4; |
718e3744 | 67 | |
1eb8ef25 | 68 | for (ALL_LIST_ELEMENTS (bm->bgp, node, nnode, bgp)) |
718e3744 | 69 | { |
18a6dce6 | 70 | if (!bgp->router_id_static.s_addr) |
1eb8ef25 | 71 | bgp_router_id_set (bgp, &router_id.u.prefix4); |
718e3744 | 72 | } |
18a6dce6 | 73 | |
718e3744 | 74 | return 0; |
75 | } | |
76 | ||
77 | /* Inteface addition message from zebra. */ | |
94f2b392 | 78 | static int |
718e3744 | 79 | bgp_interface_add (int command, struct zclient *zclient, zebra_size_t length) |
80 | { | |
81 | struct interface *ifp; | |
82 | ||
83 | ifp = zebra_interface_add_read (zclient->ibuf); | |
718e3744 | 84 | |
a39275d7 AS |
85 | if (BGP_DEBUG(zebra, ZEBRA) && ifp) |
86 | zlog_debug("Zebra rcvd: interface add %s", ifp->name); | |
87 | ||
718e3744 | 88 | return 0; |
89 | } | |
90 | ||
94f2b392 | 91 | static int |
718e3744 | 92 | bgp_interface_delete (int command, struct zclient *zclient, |
93 | zebra_size_t length) | |
94 | { | |
95 | struct stream *s; | |
96 | struct interface *ifp; | |
97 | ||
98 | s = zclient->ibuf; | |
99 | ifp = zebra_interface_state_read (s); | |
d2fc8896 | 100 | ifp->ifindex = IFINDEX_INTERNAL; |
718e3744 | 101 | |
a39275d7 AS |
102 | if (BGP_DEBUG(zebra, ZEBRA)) |
103 | zlog_debug("Zebra rcvd: interface delete %s", ifp->name); | |
104 | ||
718e3744 | 105 | return 0; |
106 | } | |
107 | ||
94f2b392 | 108 | static int |
718e3744 | 109 | bgp_interface_up (int command, struct zclient *zclient, zebra_size_t length) |
110 | { | |
111 | struct stream *s; | |
112 | struct interface *ifp; | |
113 | struct connected *c; | |
1eb8ef25 | 114 | struct listnode *node, *nnode; |
718e3744 | 115 | |
116 | s = zclient->ibuf; | |
117 | ifp = zebra_interface_state_read (s); | |
118 | ||
119 | if (! ifp) | |
120 | return 0; | |
121 | ||
a39275d7 AS |
122 | if (BGP_DEBUG(zebra, ZEBRA)) |
123 | zlog_debug("Zebra rcvd: interface %s up", ifp->name); | |
124 | ||
1eb8ef25 | 125 | for (ALL_LIST_ELEMENTS (ifp->connected, node, nnode, c)) |
126 | bgp_connected_add (c); | |
718e3744 | 127 | |
128 | return 0; | |
129 | } | |
130 | ||
94f2b392 | 131 | static int |
718e3744 | 132 | bgp_interface_down (int command, struct zclient *zclient, zebra_size_t length) |
133 | { | |
134 | struct stream *s; | |
135 | struct interface *ifp; | |
136 | struct connected *c; | |
1eb8ef25 | 137 | struct listnode *node, *nnode; |
718e3744 | 138 | |
139 | s = zclient->ibuf; | |
140 | ifp = zebra_interface_state_read (s); | |
141 | if (! ifp) | |
142 | return 0; | |
143 | ||
a39275d7 AS |
144 | if (BGP_DEBUG(zebra, ZEBRA)) |
145 | zlog_debug("Zebra rcvd: interface %s down", ifp->name); | |
146 | ||
1eb8ef25 | 147 | for (ALL_LIST_ELEMENTS (ifp->connected, node, nnode, c)) |
148 | bgp_connected_delete (c); | |
718e3744 | 149 | |
8da8689d | 150 | /* Fast external-failover */ |
718e3744 | 151 | { |
1eb8ef25 | 152 | struct listnode *mnode; |
718e3744 | 153 | struct bgp *bgp; |
154 | struct peer *peer; | |
718e3744 | 155 | |
1eb8ef25 | 156 | for (ALL_LIST_ELEMENTS_RO (bm->bgp, mnode, bgp)) |
718e3744 | 157 | { |
158 | if (CHECK_FLAG (bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) | |
159 | continue; | |
160 | ||
1eb8ef25 | 161 | for (ALL_LIST_ELEMENTS (bgp->peer, node, nnode, peer)) |
718e3744 | 162 | { |
8da8689d | 163 | if ((peer->ttl != 1) && (peer->gtsm_hops != 1)) |
718e3744 | 164 | continue; |
165 | ||
8da8689d | 166 | if (ifp == peer->nexthop.ifp) |
718e3744 | 167 | BGP_EVENT_ADD (peer, BGP_Stop); |
168 | } | |
169 | } | |
170 | } | |
171 | ||
172 | return 0; | |
173 | } | |
174 | ||
94f2b392 | 175 | static int |
718e3744 | 176 | bgp_interface_address_add (int command, struct zclient *zclient, |
177 | zebra_size_t length) | |
178 | { | |
179 | struct connected *ifc; | |
180 | ||
0a589359 | 181 | ifc = zebra_interface_address_read (command, zclient->ibuf); |
718e3744 | 182 | |
183 | if (ifc == NULL) | |
184 | return 0; | |
185 | ||
a39275d7 AS |
186 | if (BGP_DEBUG(zebra, ZEBRA)) |
187 | { | |
188 | char buf[128]; | |
189 | prefix2str(ifc->address, buf, sizeof(buf)); | |
190 | zlog_debug("Zebra rcvd: interface %s address add %s", | |
191 | ifc->ifp->name, buf); | |
192 | } | |
193 | ||
2e3b2e47 | 194 | if (if_is_operative (ifc->ifp)) |
718e3744 | 195 | bgp_connected_add (ifc); |
196 | ||
197 | return 0; | |
198 | } | |
199 | ||
94f2b392 | 200 | static int |
718e3744 | 201 | bgp_interface_address_delete (int command, struct zclient *zclient, |
202 | zebra_size_t length) | |
203 | { | |
204 | struct connected *ifc; | |
205 | ||
0a589359 | 206 | ifc = zebra_interface_address_read (command, zclient->ibuf); |
718e3744 | 207 | |
208 | if (ifc == NULL) | |
209 | return 0; | |
210 | ||
a39275d7 AS |
211 | if (BGP_DEBUG(zebra, ZEBRA)) |
212 | { | |
213 | char buf[128]; | |
214 | prefix2str(ifc->address, buf, sizeof(buf)); | |
215 | zlog_debug("Zebra rcvd: interface %s address delete %s", | |
216 | ifc->ifp->name, buf); | |
217 | } | |
218 | ||
2e3b2e47 | 219 | if (if_is_operative (ifc->ifp)) |
718e3744 | 220 | bgp_connected_delete (ifc); |
221 | ||
222 | connected_free (ifc); | |
223 | ||
224 | return 0; | |
225 | } | |
226 | ||
227 | /* Zebra route add and delete treatment. */ | |
94f2b392 | 228 | static int |
718e3744 | 229 | zebra_read_ipv4 (int command, struct zclient *zclient, zebra_size_t length) |
230 | { | |
231 | struct stream *s; | |
232 | struct zapi_ipv4 api; | |
718e3744 | 233 | struct in_addr nexthop; |
234 | struct prefix_ipv4 p; | |
235 | ||
236 | s = zclient->ibuf; | |
718e3744 | 237 | nexthop.s_addr = 0; |
238 | ||
239 | /* Type, flags, message. */ | |
240 | api.type = stream_getc (s); | |
241 | api.flags = stream_getc (s); | |
242 | api.message = stream_getc (s); | |
243 | ||
244 | /* IPv4 prefix. */ | |
245 | memset (&p, 0, sizeof (struct prefix_ipv4)); | |
246 | p.family = AF_INET; | |
247 | p.prefixlen = stream_getc (s); | |
248 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
249 | ||
250 | /* Nexthop, ifindex, distance, metric. */ | |
251 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP)) | |
252 | { | |
253 | api.nexthop_num = stream_getc (s); | |
254 | nexthop.s_addr = stream_get_ipv4 (s); | |
255 | } | |
256 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_IFINDEX)) | |
257 | { | |
258 | api.ifindex_num = stream_getc (s); | |
9206f9ec | 259 | stream_getl (s); /* ifindex, unused */ |
718e3744 | 260 | } |
261 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE)) | |
262 | api.distance = stream_getc (s); | |
263 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC)) | |
264 | api.metric = stream_getl (s); | |
265 | else | |
266 | api.metric = 0; | |
267 | ||
268 | if (command == ZEBRA_IPV4_ROUTE_ADD) | |
a39275d7 AS |
269 | { |
270 | if (BGP_DEBUG(zebra, ZEBRA)) | |
271 | { | |
272 | char buf[2][INET_ADDRSTRLEN]; | |
273 | zlog_debug("Zebra rcvd: IPv4 route add %s %s/%d nexthop %s metric %u", | |
274 | zebra_route_string(api.type), | |
275 | inet_ntop(AF_INET, &p.prefix, buf[0], sizeof(buf[0])), | |
276 | p.prefixlen, | |
277 | inet_ntop(AF_INET, &nexthop, buf[1], sizeof(buf[1])), | |
278 | api.metric); | |
279 | } | |
f04a80a5 SH |
280 | bgp_redistribute_add((struct prefix *)&p, &nexthop, NULL, |
281 | api.metric, api.type); | |
a39275d7 | 282 | } |
718e3744 | 283 | else |
a39275d7 AS |
284 | { |
285 | if (BGP_DEBUG(zebra, ZEBRA)) | |
286 | { | |
287 | char buf[2][INET_ADDRSTRLEN]; | |
288 | zlog_debug("Zebra rcvd: IPv4 route delete %s %s/%d " | |
289 | "nexthop %s metric %u", | |
290 | zebra_route_string(api.type), | |
291 | inet_ntop(AF_INET, &p.prefix, buf[0], sizeof(buf[0])), | |
292 | p.prefixlen, | |
293 | inet_ntop(AF_INET, &nexthop, buf[1], sizeof(buf[1])), | |
294 | api.metric); | |
295 | } | |
296 | bgp_redistribute_delete((struct prefix *)&p, api.type); | |
297 | } | |
718e3744 | 298 | |
299 | return 0; | |
300 | } | |
301 | ||
302 | #ifdef HAVE_IPV6 | |
303 | /* Zebra route add and delete treatment. */ | |
94f2b392 | 304 | static int |
718e3744 | 305 | zebra_read_ipv6 (int command, struct zclient *zclient, zebra_size_t length) |
306 | { | |
307 | struct stream *s; | |
308 | struct zapi_ipv6 api; | |
718e3744 | 309 | struct in6_addr nexthop; |
310 | struct prefix_ipv6 p; | |
311 | ||
312 | s = zclient->ibuf; | |
718e3744 | 313 | memset (&nexthop, 0, sizeof (struct in6_addr)); |
314 | ||
315 | /* Type, flags, message. */ | |
316 | api.type = stream_getc (s); | |
317 | api.flags = stream_getc (s); | |
318 | api.message = stream_getc (s); | |
319 | ||
320 | /* IPv6 prefix. */ | |
321 | memset (&p, 0, sizeof (struct prefix_ipv6)); | |
322 | p.family = AF_INET6; | |
323 | p.prefixlen = stream_getc (s); | |
324 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
325 | ||
326 | /* Nexthop, ifindex, distance, metric. */ | |
327 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP)) | |
328 | { | |
329 | api.nexthop_num = stream_getc (s); | |
330 | stream_get (&nexthop, s, 16); | |
331 | } | |
332 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_IFINDEX)) | |
333 | { | |
334 | api.ifindex_num = stream_getc (s); | |
9206f9ec | 335 | stream_getl (s); /* ifindex, unused */ |
718e3744 | 336 | } |
337 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE)) | |
338 | api.distance = stream_getc (s); | |
339 | else | |
340 | api.distance = 0; | |
341 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC)) | |
342 | api.metric = stream_getl (s); | |
343 | else | |
344 | api.metric = 0; | |
345 | ||
346 | /* Simply ignore link-local address. */ | |
347 | if (IN6_IS_ADDR_LINKLOCAL (&p.prefix)) | |
348 | return 0; | |
349 | ||
350 | if (command == ZEBRA_IPV6_ROUTE_ADD) | |
a39275d7 AS |
351 | { |
352 | if (BGP_DEBUG(zebra, ZEBRA)) | |
353 | { | |
f04a80a5 SH |
354 | char buf[2][INET6_ADDRSTRLEN]; |
355 | zlog_debug("Zebra rcvd: IPv6 route add %s %s/%d nexthop %s metric %u", | |
a39275d7 | 356 | zebra_route_string(api.type), |
f04a80a5 SH |
357 | inet_ntop(AF_INET6, &p.prefix, buf[0], sizeof(buf[0])), |
358 | p.prefixlen, | |
359 | inet_ntop(AF_INET, &nexthop, buf[1], sizeof(buf[1])), | |
360 | api.metric); | |
a39275d7 | 361 | } |
f04a80a5 SH |
362 | bgp_redistribute_add ((struct prefix *)&p, NULL, &nexthop, |
363 | api.metric, api.type); | |
a39275d7 | 364 | } |
718e3744 | 365 | else |
a39275d7 AS |
366 | { |
367 | if (BGP_DEBUG(zebra, ZEBRA)) | |
368 | { | |
f04a80a5 SH |
369 | char buf[2][INET6_ADDRSTRLEN]; |
370 | zlog_debug("Zebra rcvd: IPv6 route delete %s %s/%d " | |
371 | "nexthop %s metric %u", | |
a39275d7 | 372 | zebra_route_string(api.type), |
f04a80a5 SH |
373 | inet_ntop(AF_INET6, &p.prefix, buf[0], sizeof(buf[0])), |
374 | p.prefixlen, | |
375 | inet_ntop(AF_INET6, &nexthop, buf[1], sizeof(buf[1])), | |
376 | api.metric); | |
a39275d7 AS |
377 | } |
378 | bgp_redistribute_delete ((struct prefix *) &p, api.type); | |
379 | } | |
718e3744 | 380 | |
381 | return 0; | |
382 | } | |
383 | #endif /* HAVE_IPV6 */ | |
384 | \f | |
385 | struct interface * | |
386 | if_lookup_by_ipv4 (struct in_addr *addr) | |
387 | { | |
52dc7ee6 | 388 | struct listnode *ifnode; |
389 | struct listnode *cnode; | |
718e3744 | 390 | struct interface *ifp; |
391 | struct connected *connected; | |
392 | struct prefix_ipv4 p; | |
393 | struct prefix *cp; | |
394 | ||
395 | p.family = AF_INET; | |
396 | p.prefix = *addr; | |
397 | p.prefixlen = IPV4_MAX_BITLEN; | |
398 | ||
1eb8ef25 | 399 | for (ALL_LIST_ELEMENTS_RO (iflist, ifnode, ifp)) |
718e3744 | 400 | { |
1eb8ef25 | 401 | for (ALL_LIST_ELEMENTS_RO (ifp->connected, cnode, connected)) |
718e3744 | 402 | { |
718e3744 | 403 | cp = connected->address; |
404 | ||
405 | if (cp->family == AF_INET) | |
406 | if (prefix_match (cp, (struct prefix *)&p)) | |
407 | return ifp; | |
408 | } | |
409 | } | |
410 | return NULL; | |
411 | } | |
412 | ||
413 | struct interface * | |
414 | if_lookup_by_ipv4_exact (struct in_addr *addr) | |
415 | { | |
52dc7ee6 | 416 | struct listnode *ifnode; |
417 | struct listnode *cnode; | |
718e3744 | 418 | struct interface *ifp; |
419 | struct connected *connected; | |
420 | struct prefix *cp; | |
421 | ||
1eb8ef25 | 422 | for (ALL_LIST_ELEMENTS_RO (iflist, ifnode, ifp)) |
718e3744 | 423 | { |
1eb8ef25 | 424 | for (ALL_LIST_ELEMENTS_RO (ifp->connected, cnode, connected)) |
718e3744 | 425 | { |
718e3744 | 426 | cp = connected->address; |
427 | ||
428 | if (cp->family == AF_INET) | |
429 | if (IPV4_ADDR_SAME (&cp->u.prefix4, addr)) | |
430 | return ifp; | |
431 | } | |
432 | } | |
433 | return NULL; | |
434 | } | |
435 | ||
436 | #ifdef HAVE_IPV6 | |
437 | struct interface * | |
438 | if_lookup_by_ipv6 (struct in6_addr *addr) | |
439 | { | |
52dc7ee6 | 440 | struct listnode *ifnode; |
441 | struct listnode *cnode; | |
718e3744 | 442 | struct interface *ifp; |
443 | struct connected *connected; | |
444 | struct prefix_ipv6 p; | |
445 | struct prefix *cp; | |
446 | ||
447 | p.family = AF_INET6; | |
448 | p.prefix = *addr; | |
449 | p.prefixlen = IPV6_MAX_BITLEN; | |
450 | ||
1eb8ef25 | 451 | for (ALL_LIST_ELEMENTS_RO (iflist, ifnode, ifp)) |
718e3744 | 452 | { |
1eb8ef25 | 453 | for (ALL_LIST_ELEMENTS_RO (ifp->connected, cnode, connected)) |
718e3744 | 454 | { |
718e3744 | 455 | cp = connected->address; |
456 | ||
457 | if (cp->family == AF_INET6) | |
458 | if (prefix_match (cp, (struct prefix *)&p)) | |
459 | return ifp; | |
460 | } | |
461 | } | |
462 | return NULL; | |
463 | } | |
464 | ||
465 | struct interface * | |
466 | if_lookup_by_ipv6_exact (struct in6_addr *addr) | |
467 | { | |
52dc7ee6 | 468 | struct listnode *ifnode; |
469 | struct listnode *cnode; | |
718e3744 | 470 | struct interface *ifp; |
471 | struct connected *connected; | |
472 | struct prefix *cp; | |
473 | ||
1eb8ef25 | 474 | for (ALL_LIST_ELEMENTS_RO (iflist, ifnode, ifp)) |
718e3744 | 475 | { |
1eb8ef25 | 476 | for (ALL_LIST_ELEMENTS_RO (ifp->connected, cnode, connected)) |
718e3744 | 477 | { |
718e3744 | 478 | cp = connected->address; |
479 | ||
480 | if (cp->family == AF_INET6) | |
481 | if (IPV6_ADDR_SAME (&cp->u.prefix6, addr)) | |
482 | return ifp; | |
483 | } | |
484 | } | |
485 | return NULL; | |
486 | } | |
487 | ||
94f2b392 | 488 | static int |
718e3744 | 489 | if_get_ipv6_global (struct interface *ifp, struct in6_addr *addr) |
490 | { | |
52dc7ee6 | 491 | struct listnode *cnode; |
718e3744 | 492 | struct connected *connected; |
493 | struct prefix *cp; | |
494 | ||
1eb8ef25 | 495 | for (ALL_LIST_ELEMENTS_RO (ifp->connected, cnode, connected)) |
718e3744 | 496 | { |
718e3744 | 497 | cp = connected->address; |
498 | ||
499 | if (cp->family == AF_INET6) | |
500 | if (! IN6_IS_ADDR_LINKLOCAL (&cp->u.prefix6)) | |
501 | { | |
502 | memcpy (addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
503 | return 1; | |
504 | } | |
505 | } | |
506 | return 0; | |
507 | } | |
508 | ||
94f2b392 | 509 | static int |
718e3744 | 510 | if_get_ipv6_local (struct interface *ifp, struct in6_addr *addr) |
511 | { | |
52dc7ee6 | 512 | struct listnode *cnode; |
718e3744 | 513 | struct connected *connected; |
514 | struct prefix *cp; | |
515 | ||
1eb8ef25 | 516 | for (ALL_LIST_ELEMENTS_RO (ifp->connected, cnode, connected)) |
718e3744 | 517 | { |
718e3744 | 518 | cp = connected->address; |
519 | ||
520 | if (cp->family == AF_INET6) | |
521 | if (IN6_IS_ADDR_LINKLOCAL (&cp->u.prefix6)) | |
522 | { | |
523 | memcpy (addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
524 | return 1; | |
525 | } | |
526 | } | |
527 | return 0; | |
528 | } | |
529 | #endif /* HAVE_IPV6 */ | |
530 | ||
6ee06fa9 PM |
531 | static int |
532 | if_get_ipv4_address (struct interface *ifp, struct in_addr *addr) | |
533 | { | |
534 | struct listnode *cnode; | |
535 | struct connected *connected; | |
536 | struct prefix *cp; | |
537 | ||
538 | for (ALL_LIST_ELEMENTS_RO (ifp->connected, cnode, connected)) | |
539 | { | |
540 | cp = connected->address; | |
541 | if ((cp->family == AF_INET) && !ipv4_martian(&(cp->u.prefix4))) | |
542 | { | |
543 | *addr = cp->u.prefix4; | |
544 | return 1; | |
545 | } | |
546 | } | |
547 | return 0; | |
548 | } | |
549 | ||
718e3744 | 550 | int |
551 | bgp_nexthop_set (union sockunion *local, union sockunion *remote, | |
552 | struct bgp_nexthop *nexthop, struct peer *peer) | |
553 | { | |
554 | int ret = 0; | |
555 | struct interface *ifp = NULL; | |
556 | ||
557 | memset (nexthop, 0, sizeof (struct bgp_nexthop)); | |
558 | ||
559 | if (!local) | |
560 | return -1; | |
561 | if (!remote) | |
562 | return -1; | |
563 | ||
564 | if (local->sa.sa_family == AF_INET) | |
565 | { | |
566 | nexthop->v4 = local->sin.sin_addr; | |
567 | ifp = if_lookup_by_ipv4 (&local->sin.sin_addr); | |
568 | } | |
569 | #ifdef HAVE_IPV6 | |
570 | if (local->sa.sa_family == AF_INET6) | |
571 | { | |
572 | if (IN6_IS_ADDR_LINKLOCAL (&local->sin6.sin6_addr)) | |
573 | { | |
574 | if (peer->ifname) | |
575 | ifp = if_lookup_by_index (if_nametoindex (peer->ifname)); | |
576 | } | |
577 | else | |
578 | ifp = if_lookup_by_ipv6 (&local->sin6.sin6_addr); | |
579 | } | |
580 | #endif /* HAVE_IPV6 */ | |
581 | ||
582 | if (!ifp) | |
583 | return -1; | |
584 | ||
585 | nexthop->ifp = ifp; | |
586 | ||
587 | /* IPv4 connection. */ | |
588 | if (local->sa.sa_family == AF_INET) | |
589 | { | |
590 | #ifdef HAVE_IPV6 | |
591 | /* IPv6 nexthop*/ | |
592 | ret = if_get_ipv6_global (ifp, &nexthop->v6_global); | |
593 | ||
594 | /* There is no global nexthop. */ | |
595 | if (!ret) | |
596 | if_get_ipv6_local (ifp, &nexthop->v6_global); | |
597 | else | |
598 | if_get_ipv6_local (ifp, &nexthop->v6_local); | |
599 | #endif /* HAVE_IPV6 */ | |
600 | } | |
601 | ||
602 | #ifdef HAVE_IPV6 | |
603 | /* IPv6 connection. */ | |
604 | if (local->sa.sa_family == AF_INET6) | |
605 | { | |
606 | struct interface *direct = NULL; | |
607 | ||
6ee06fa9 PM |
608 | /* IPv4 nexthop. */ |
609 | ret = if_get_ipv4_address(ifp, &nexthop->v4); | |
610 | if (!ret && peer->local_id.s_addr) | |
718e3744 | 611 | nexthop->v4 = peer->local_id; |
612 | ||
613 | /* Global address*/ | |
614 | if (! IN6_IS_ADDR_LINKLOCAL (&local->sin6.sin6_addr)) | |
615 | { | |
616 | memcpy (&nexthop->v6_global, &local->sin6.sin6_addr, | |
617 | IPV6_MAX_BYTELEN); | |
618 | ||
619 | /* If directory connected set link-local address. */ | |
620 | direct = if_lookup_by_ipv6 (&remote->sin6.sin6_addr); | |
621 | if (direct) | |
622 | if_get_ipv6_local (ifp, &nexthop->v6_local); | |
623 | } | |
624 | else | |
625 | /* Link-local address. */ | |
626 | { | |
627 | ret = if_get_ipv6_global (ifp, &nexthop->v6_global); | |
628 | ||
629 | /* If there is no global address. Set link-local address as | |
630 | global. I know this break RFC specification... */ | |
631 | if (!ret) | |
632 | memcpy (&nexthop->v6_global, &local->sin6.sin6_addr, | |
633 | IPV6_MAX_BYTELEN); | |
634 | else | |
635 | memcpy (&nexthop->v6_local, &local->sin6.sin6_addr, | |
636 | IPV6_MAX_BYTELEN); | |
637 | } | |
638 | } | |
639 | ||
640 | if (IN6_IS_ADDR_LINKLOCAL (&local->sin6.sin6_addr) || | |
641 | if_lookup_by_ipv6 (&remote->sin6.sin6_addr)) | |
642 | peer->shared_network = 1; | |
643 | else | |
644 | peer->shared_network = 0; | |
645 | ||
646 | /* KAME stack specific treatment. */ | |
647 | #ifdef KAME | |
648 | if (IN6_IS_ADDR_LINKLOCAL (&nexthop->v6_global) | |
649 | && IN6_LINKLOCAL_IFINDEX (nexthop->v6_global)) | |
650 | { | |
651 | SET_IN6_LINKLOCAL_IFINDEX (nexthop->v6_global, 0); | |
652 | } | |
653 | if (IN6_IS_ADDR_LINKLOCAL (&nexthop->v6_local) | |
654 | && IN6_LINKLOCAL_IFINDEX (nexthop->v6_local)) | |
655 | { | |
656 | SET_IN6_LINKLOCAL_IFINDEX (nexthop->v6_local, 0); | |
657 | } | |
658 | #endif /* KAME */ | |
659 | #endif /* HAVE_IPV6 */ | |
660 | return ret; | |
661 | } | |
662 | ||
718e3744 | 663 | void |
5a616c08 | 664 | bgp_zebra_announce (struct prefix *p, struct bgp_info *info, struct bgp *bgp, safi_t safi) |
718e3744 | 665 | { |
666 | int flags; | |
667 | u_char distance; | |
668 | struct peer *peer; | |
8196f13d JB |
669 | struct bgp_info *mpinfo; |
670 | size_t oldsize, newsize; | |
718e3744 | 671 | |
672 | if (zclient->sock < 0) | |
673 | return; | |
674 | ||
675 | if (! zclient->redist[ZEBRA_ROUTE_BGP]) | |
676 | return; | |
677 | ||
678 | flags = 0; | |
679 | peer = info->peer; | |
680 | ||
6d85b15b | 681 | if (peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED) |
718e3744 | 682 | { |
683 | SET_FLAG (flags, ZEBRA_FLAG_IBGP); | |
684 | SET_FLAG (flags, ZEBRA_FLAG_INTERNAL); | |
685 | } | |
686 | ||
6d85b15b | 687 | if ((peer->sort == BGP_PEER_EBGP && peer->ttl != 1) |
6ffd2079 | 688 | || CHECK_FLAG (peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK)) |
718e3744 | 689 | SET_FLAG (flags, ZEBRA_FLAG_INTERNAL); |
690 | ||
8196f13d JB |
691 | /* resize nexthop buffer size if necessary */ |
692 | if ((oldsize = stream_get_size (bgp_nexthop_buf)) < | |
693 | (sizeof (struct in_addr *) * (bgp_info_mpath_count (info) + 1))) | |
694 | { | |
695 | newsize = (sizeof (struct in_addr *) * (bgp_info_mpath_count (info) + 1)); | |
696 | newsize = stream_resize (bgp_nexthop_buf, newsize); | |
697 | if (newsize == oldsize) | |
698 | { | |
699 | zlog_err ("can't resize nexthop buffer"); | |
700 | return; | |
701 | } | |
702 | } | |
703 | ||
704 | stream_reset (bgp_nexthop_buf); | |
705 | ||
718e3744 | 706 | if (p->family == AF_INET) |
707 | { | |
708 | struct zapi_ipv4 api; | |
709 | struct in_addr *nexthop; | |
710 | ||
711 | api.flags = flags; | |
712 | nexthop = &info->attr->nexthop; | |
8196f13d JB |
713 | stream_put (bgp_nexthop_buf, &nexthop, sizeof (struct in_addr *)); |
714 | for (mpinfo = bgp_info_mpath_first (info); mpinfo; | |
715 | mpinfo = bgp_info_mpath_next (mpinfo)) | |
716 | { | |
717 | nexthop = &mpinfo->attr->nexthop; | |
718 | stream_put (bgp_nexthop_buf, &nexthop, sizeof (struct in_addr *)); | |
719 | } | |
718e3744 | 720 | |
721 | api.type = ZEBRA_ROUTE_BGP; | |
722 | api.message = 0; | |
5a616c08 | 723 | api.safi = safi; |
718e3744 | 724 | SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP); |
8196f13d JB |
725 | api.nexthop_num = 1 + bgp_info_mpath_count (info); |
726 | api.nexthop = (struct in_addr **)STREAM_DATA (bgp_nexthop_buf); | |
718e3744 | 727 | api.ifindex_num = 0; |
728 | SET_FLAG (api.message, ZAPI_MESSAGE_METRIC); | |
729 | api.metric = info->attr->med; | |
730 | ||
731 | distance = bgp_distance_apply (p, info, bgp); | |
732 | ||
733 | if (distance) | |
734 | { | |
735 | SET_FLAG (api.message, ZAPI_MESSAGE_DISTANCE); | |
736 | api.distance = distance; | |
737 | } | |
a39275d7 AS |
738 | |
739 | if (BGP_DEBUG(zebra, ZEBRA)) | |
740 | { | |
8196f13d | 741 | int i; |
a39275d7 | 742 | char buf[2][INET_ADDRSTRLEN]; |
8196f13d JB |
743 | zlog_debug("Zebra send: IPv4 route add %s/%d nexthop %s metric %u" |
744 | " count %d", | |
a39275d7 AS |
745 | inet_ntop(AF_INET, &p->u.prefix4, buf[0], sizeof(buf[0])), |
746 | p->prefixlen, | |
8196f13d JB |
747 | inet_ntop(AF_INET, api.nexthop[0], buf[1], sizeof(buf[1])), |
748 | api.metric, api.nexthop_num); | |
749 | for (i = 1; i < api.nexthop_num; i++) | |
750 | zlog_debug("Zebra send: IPv4 route add [nexthop %d] %s", | |
751 | i, inet_ntop(AF_INET, api.nexthop[i], buf[1], | |
752 | sizeof(buf[1]))); | |
a39275d7 AS |
753 | } |
754 | ||
0a589359 | 755 | zapi_ipv4_route (ZEBRA_IPV4_ROUTE_ADD, zclient, |
756 | (struct prefix_ipv4 *) p, &api); | |
718e3744 | 757 | } |
758 | #ifdef HAVE_IPV6 | |
759 | /* We have to think about a IPv6 link-local address curse. */ | |
760 | if (p->family == AF_INET6) | |
761 | { | |
762 | unsigned int ifindex; | |
763 | struct in6_addr *nexthop; | |
764 | struct zapi_ipv6 api; | |
765 | ||
766 | ifindex = 0; | |
767 | nexthop = NULL; | |
fb982c25 PJ |
768 | |
769 | assert (info->attr->extra); | |
770 | ||
718e3744 | 771 | /* Only global address nexthop exists. */ |
fb982c25 PJ |
772 | if (info->attr->extra->mp_nexthop_len == 16) |
773 | nexthop = &info->attr->extra->mp_nexthop_global; | |
718e3744 | 774 | |
775 | /* If both global and link-local address present. */ | |
fb982c25 | 776 | if (info->attr->extra->mp_nexthop_len == 32) |
718e3744 | 777 | { |
778 | /* Workaround for Cisco's nexthop bug. */ | |
fb982c25 | 779 | if (IN6_IS_ADDR_UNSPECIFIED (&info->attr->extra->mp_nexthop_global) |
718e3744 | 780 | && peer->su_remote->sa.sa_family == AF_INET6) |
781 | nexthop = &peer->su_remote->sin6.sin6_addr; | |
782 | else | |
fb982c25 | 783 | nexthop = &info->attr->extra->mp_nexthop_local; |
718e3744 | 784 | |
785 | if (info->peer->nexthop.ifp) | |
786 | ifindex = info->peer->nexthop.ifp->ifindex; | |
787 | } | |
788 | ||
789 | if (nexthop == NULL) | |
790 | return; | |
791 | ||
792 | if (IN6_IS_ADDR_LINKLOCAL (nexthop) && ! ifindex) | |
793 | { | |
794 | if (info->peer->ifname) | |
795 | ifindex = if_nametoindex (info->peer->ifname); | |
796 | else if (info->peer->nexthop.ifp) | |
797 | ifindex = info->peer->nexthop.ifp->ifindex; | |
798 | } | |
799 | ||
800 | /* Make Zebra API structure. */ | |
801 | api.flags = flags; | |
802 | api.type = ZEBRA_ROUTE_BGP; | |
803 | api.message = 0; | |
c7ec179a | 804 | api.safi = safi; |
718e3744 | 805 | SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP); |
806 | api.nexthop_num = 1; | |
807 | api.nexthop = &nexthop; | |
808 | SET_FLAG (api.message, ZAPI_MESSAGE_IFINDEX); | |
809 | api.ifindex_num = 1; | |
810 | api.ifindex = &ifindex; | |
811 | SET_FLAG (api.message, ZAPI_MESSAGE_METRIC); | |
812 | api.metric = info->attr->med; | |
813 | ||
a39275d7 AS |
814 | if (BGP_DEBUG(zebra, ZEBRA)) |
815 | { | |
816 | char buf[2][INET6_ADDRSTRLEN]; | |
817 | zlog_debug("Zebra send: IPv6 route add %s/%d nexthop %s metric %u", | |
818 | inet_ntop(AF_INET6, &p->u.prefix6, buf[0], sizeof(buf[0])), | |
819 | p->prefixlen, | |
820 | inet_ntop(AF_INET6, nexthop, buf[1], sizeof(buf[1])), | |
821 | api.metric); | |
822 | } | |
823 | ||
0a589359 | 824 | zapi_ipv6_route (ZEBRA_IPV6_ROUTE_ADD, zclient, |
825 | (struct prefix_ipv6 *) p, &api); | |
718e3744 | 826 | } |
827 | #endif /* HAVE_IPV6 */ | |
828 | } | |
829 | ||
830 | void | |
5a616c08 | 831 | bgp_zebra_withdraw (struct prefix *p, struct bgp_info *info, safi_t safi) |
718e3744 | 832 | { |
833 | int flags; | |
834 | struct peer *peer; | |
835 | ||
836 | if (zclient->sock < 0) | |
837 | return; | |
838 | ||
839 | if (! zclient->redist[ZEBRA_ROUTE_BGP]) | |
840 | return; | |
841 | ||
842 | peer = info->peer; | |
843 | flags = 0; | |
844 | ||
6d85b15b | 845 | if (peer->sort == BGP_PEER_IBGP) |
718e3744 | 846 | { |
847 | SET_FLAG (flags, ZEBRA_FLAG_INTERNAL); | |
848 | SET_FLAG (flags, ZEBRA_FLAG_IBGP); | |
849 | } | |
850 | ||
6d85b15b | 851 | if ((peer->sort == BGP_PEER_EBGP && peer->ttl != 1) |
6ffd2079 | 852 | || CHECK_FLAG (peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK)) |
718e3744 | 853 | SET_FLAG (flags, ZEBRA_FLAG_INTERNAL); |
854 | ||
855 | if (p->family == AF_INET) | |
856 | { | |
857 | struct zapi_ipv4 api; | |
858 | struct in_addr *nexthop; | |
859 | ||
860 | api.flags = flags; | |
861 | nexthop = &info->attr->nexthop; | |
862 | ||
863 | api.type = ZEBRA_ROUTE_BGP; | |
864 | api.message = 0; | |
5a616c08 | 865 | api.safi = safi; |
718e3744 | 866 | SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP); |
867 | api.nexthop_num = 1; | |
868 | api.nexthop = &nexthop; | |
869 | api.ifindex_num = 0; | |
870 | SET_FLAG (api.message, ZAPI_MESSAGE_METRIC); | |
871 | api.metric = info->attr->med; | |
872 | ||
a39275d7 AS |
873 | if (BGP_DEBUG(zebra, ZEBRA)) |
874 | { | |
875 | char buf[2][INET_ADDRSTRLEN]; | |
876 | zlog_debug("Zebra send: IPv4 route delete %s/%d nexthop %s metric %u", | |
877 | inet_ntop(AF_INET, &p->u.prefix4, buf[0], sizeof(buf[0])), | |
878 | p->prefixlen, | |
879 | inet_ntop(AF_INET, nexthop, buf[1], sizeof(buf[1])), | |
880 | api.metric); | |
881 | } | |
882 | ||
0a589359 | 883 | zapi_ipv4_route (ZEBRA_IPV4_ROUTE_DELETE, zclient, |
884 | (struct prefix_ipv4 *) p, &api); | |
718e3744 | 885 | } |
886 | #ifdef HAVE_IPV6 | |
887 | /* We have to think about a IPv6 link-local address curse. */ | |
888 | if (p->family == AF_INET6) | |
889 | { | |
890 | struct zapi_ipv6 api; | |
891 | unsigned int ifindex; | |
892 | struct in6_addr *nexthop; | |
fb982c25 PJ |
893 | |
894 | assert (info->attr->extra); | |
895 | ||
718e3744 | 896 | ifindex = 0; |
897 | nexthop = NULL; | |
898 | ||
899 | /* Only global address nexthop exists. */ | |
fb982c25 PJ |
900 | if (info->attr->extra->mp_nexthop_len == 16) |
901 | nexthop = &info->attr->extra->mp_nexthop_global; | |
718e3744 | 902 | |
903 | /* If both global and link-local address present. */ | |
fb982c25 | 904 | if (info->attr->extra->mp_nexthop_len == 32) |
718e3744 | 905 | { |
fb982c25 | 906 | nexthop = &info->attr->extra->mp_nexthop_local; |
718e3744 | 907 | if (info->peer->nexthop.ifp) |
908 | ifindex = info->peer->nexthop.ifp->ifindex; | |
909 | } | |
910 | ||
911 | if (nexthop == NULL) | |
912 | return; | |
913 | ||
914 | if (IN6_IS_ADDR_LINKLOCAL (nexthop) && ! ifindex) | |
915 | if (info->peer->ifname) | |
916 | ifindex = if_nametoindex (info->peer->ifname); | |
917 | ||
918 | api.flags = flags; | |
919 | api.type = ZEBRA_ROUTE_BGP; | |
920 | api.message = 0; | |
c7ec179a | 921 | api.safi = safi; |
718e3744 | 922 | SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP); |
923 | api.nexthop_num = 1; | |
924 | api.nexthop = &nexthop; | |
925 | SET_FLAG (api.message, ZAPI_MESSAGE_IFINDEX); | |
926 | api.ifindex_num = 1; | |
927 | api.ifindex = &ifindex; | |
928 | SET_FLAG (api.message, ZAPI_MESSAGE_METRIC); | |
929 | api.metric = info->attr->med; | |
930 | ||
a39275d7 AS |
931 | if (BGP_DEBUG(zebra, ZEBRA)) |
932 | { | |
933 | char buf[2][INET6_ADDRSTRLEN]; | |
934 | zlog_debug("Zebra send: IPv6 route delete %s/%d nexthop %s metric %u", | |
935 | inet_ntop(AF_INET6, &p->u.prefix6, buf[0], sizeof(buf[0])), | |
936 | p->prefixlen, | |
937 | inet_ntop(AF_INET6, nexthop, buf[1], sizeof(buf[1])), | |
938 | api.metric); | |
939 | } | |
940 | ||
0a589359 | 941 | zapi_ipv6_route (ZEBRA_IPV6_ROUTE_DELETE, zclient, |
942 | (struct prefix_ipv6 *) p, &api); | |
718e3744 | 943 | } |
944 | #endif /* HAVE_IPV6 */ | |
945 | } | |
946 | \f | |
947 | /* Other routes redistribution into BGP. */ | |
948 | int | |
949 | bgp_redistribute_set (struct bgp *bgp, afi_t afi, int type) | |
950 | { | |
951 | /* Set flag to BGP instance. */ | |
952 | bgp->redist[afi][type] = 1; | |
953 | ||
954 | /* Return if already redistribute flag is set. */ | |
955 | if (zclient->redist[type]) | |
956 | return CMD_WARNING; | |
957 | ||
958 | zclient->redist[type] = 1; | |
959 | ||
960 | /* Return if zebra connection is not established. */ | |
961 | if (zclient->sock < 0) | |
962 | return CMD_WARNING; | |
a39275d7 AS |
963 | |
964 | if (BGP_DEBUG(zebra, ZEBRA)) | |
965 | zlog_debug("Zebra send: redistribute add %s", zebra_route_string(type)); | |
718e3744 | 966 | |
967 | /* Send distribute add message to zebra. */ | |
634f9ea2 | 968 | zebra_redistribute_send (ZEBRA_REDISTRIBUTE_ADD, zclient, type); |
718e3744 | 969 | |
970 | return CMD_SUCCESS; | |
971 | } | |
972 | ||
973 | /* Redistribute with route-map specification. */ | |
974 | int | |
fd79ac91 | 975 | bgp_redistribute_rmap_set (struct bgp *bgp, afi_t afi, int type, |
976 | const char *name) | |
718e3744 | 977 | { |
978 | if (bgp->rmap[afi][type].name | |
979 | && (strcmp (bgp->rmap[afi][type].name, name) == 0)) | |
980 | return 0; | |
981 | ||
982 | if (bgp->rmap[afi][type].name) | |
983 | free (bgp->rmap[afi][type].name); | |
984 | bgp->rmap[afi][type].name = strdup (name); | |
985 | bgp->rmap[afi][type].map = route_map_lookup_by_name (name); | |
986 | ||
987 | return 1; | |
988 | } | |
989 | ||
990 | /* Redistribute with metric specification. */ | |
991 | int | |
992 | bgp_redistribute_metric_set (struct bgp *bgp, afi_t afi, int type, | |
993 | u_int32_t metric) | |
994 | { | |
995 | if (bgp->redist_metric_flag[afi][type] | |
996 | && bgp->redist_metric[afi][type] == metric) | |
997 | return 0; | |
998 | ||
999 | bgp->redist_metric_flag[afi][type] = 1; | |
1000 | bgp->redist_metric[afi][type] = metric; | |
1001 | ||
1002 | return 1; | |
1003 | } | |
1004 | ||
1005 | /* Unset redistribution. */ | |
1006 | int | |
1007 | bgp_redistribute_unset (struct bgp *bgp, afi_t afi, int type) | |
1008 | { | |
1009 | /* Unset flag from BGP instance. */ | |
1010 | bgp->redist[afi][type] = 0; | |
1011 | ||
1012 | /* Unset route-map. */ | |
1013 | if (bgp->rmap[afi][type].name) | |
1014 | free (bgp->rmap[afi][type].name); | |
1015 | bgp->rmap[afi][type].name = NULL; | |
1016 | bgp->rmap[afi][type].map = NULL; | |
1017 | ||
1018 | /* Unset metric. */ | |
1019 | bgp->redist_metric_flag[afi][type] = 0; | |
1020 | bgp->redist_metric[afi][type] = 0; | |
1021 | ||
1022 | /* Return if zebra connection is disabled. */ | |
1023 | if (! zclient->redist[type]) | |
1024 | return CMD_WARNING; | |
1025 | zclient->redist[type] = 0; | |
1026 | ||
1027 | if (bgp->redist[AFI_IP][type] == 0 | |
1028 | && bgp->redist[AFI_IP6][type] == 0 | |
1029 | && zclient->sock >= 0) | |
a39275d7 AS |
1030 | { |
1031 | /* Send distribute delete message to zebra. */ | |
1032 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1033 | zlog_debug("Zebra send: redistribute delete %s", | |
1034 | zebra_route_string(type)); | |
1035 | zebra_redistribute_send (ZEBRA_REDISTRIBUTE_DELETE, zclient, type); | |
1036 | } | |
718e3744 | 1037 | |
1038 | /* Withdraw redistributed routes from current BGP's routing table. */ | |
1039 | bgp_redistribute_withdraw (bgp, afi, type); | |
1040 | ||
1041 | return CMD_SUCCESS; | |
1042 | } | |
1043 | ||
1044 | /* Unset redistribution route-map configuration. */ | |
1045 | int | |
1046 | bgp_redistribute_routemap_unset (struct bgp *bgp, afi_t afi, int type) | |
1047 | { | |
1048 | if (! bgp->rmap[afi][type].name) | |
1049 | return 0; | |
1050 | ||
1051 | /* Unset route-map. */ | |
1052 | free (bgp->rmap[afi][type].name); | |
1053 | bgp->rmap[afi][type].name = NULL; | |
1054 | bgp->rmap[afi][type].map = NULL; | |
1055 | ||
1056 | return 1; | |
1057 | } | |
1058 | ||
1059 | /* Unset redistribution metric configuration. */ | |
1060 | int | |
1061 | bgp_redistribute_metric_unset (struct bgp *bgp, afi_t afi, int type) | |
1062 | { | |
1063 | if (! bgp->redist_metric_flag[afi][type]) | |
1064 | return 0; | |
1065 | ||
1066 | /* Unset metric. */ | |
1067 | bgp->redist_metric_flag[afi][type] = 0; | |
1068 | bgp->redist_metric[afi][type] = 0; | |
1069 | ||
1070 | return 1; | |
1071 | } | |
1072 | \f | |
1073 | void | |
94f2b392 | 1074 | bgp_zclient_reset (void) |
718e3744 | 1075 | { |
1076 | zclient_reset (zclient); | |
1077 | } | |
1078 | ||
1079 | void | |
94f2b392 | 1080 | bgp_zebra_init (void) |
718e3744 | 1081 | { |
1082 | /* Set default values. */ | |
1083 | zclient = zclient_new (); | |
1084 | zclient_init (zclient, ZEBRA_ROUTE_BGP); | |
18a6dce6 | 1085 | zclient->router_id_update = bgp_router_id_update; |
718e3744 | 1086 | zclient->interface_add = bgp_interface_add; |
1087 | zclient->interface_delete = bgp_interface_delete; | |
1088 | zclient->interface_address_add = bgp_interface_address_add; | |
1089 | zclient->interface_address_delete = bgp_interface_address_delete; | |
1090 | zclient->ipv4_route_add = zebra_read_ipv4; | |
1091 | zclient->ipv4_route_delete = zebra_read_ipv4; | |
1092 | zclient->interface_up = bgp_interface_up; | |
1093 | zclient->interface_down = bgp_interface_down; | |
1094 | #ifdef HAVE_IPV6 | |
1095 | zclient->ipv6_route_add = zebra_read_ipv6; | |
1096 | zclient->ipv6_route_delete = zebra_read_ipv6; | |
1097 | #endif /* HAVE_IPV6 */ | |
1098 | ||
1099 | /* Interface related init. */ | |
1100 | if_init (); | |
8196f13d JB |
1101 | |
1102 | bgp_nexthop_buf = stream_new(BGP_NEXTHOP_BUF_SIZE); | |
718e3744 | 1103 | } |