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