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718e3744 | 1 | /* |
2 | * Zebra connect library for OSPFd | |
3 | * Copyright (C) 1997, 98, 99, 2000 Kunihiro Ishiguro, Toshiaki Takada | |
4 | * | |
5 | * This file is part of GNU Zebra. | |
6 | * | |
7 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2, or (at your option) any | |
10 | * later version. | |
11 | * | |
12 | * GNU Zebra is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with GNU Zebra; see the file COPYING. If not, write to the | |
19 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
ac4d0be5 | 20 | * Boston, MA 02111-1307, USA. |
718e3744 | 21 | */ |
22 | ||
23 | #include <zebra.h> | |
24 | ||
25 | #include "thread.h" | |
26 | #include "command.h" | |
27 | #include "network.h" | |
28 | #include "prefix.h" | |
29 | #include "routemap.h" | |
30 | #include "table.h" | |
31 | #include "stream.h" | |
32 | #include "memory.h" | |
33 | #include "zclient.h" | |
34 | #include "filter.h" | |
dd669bb0 | 35 | #include "plist.h" |
718e3744 | 36 | #include "log.h" |
2376c3f2 | 37 | #include "lib/bfd.h" |
5b30316e | 38 | #include "nexthop.h" |
718e3744 | 39 | |
40 | #include "ospfd/ospfd.h" | |
41 | #include "ospfd/ospf_interface.h" | |
42 | #include "ospfd/ospf_ism.h" | |
43 | #include "ospfd/ospf_asbr.h" | |
44 | #include "ospfd/ospf_asbr.h" | |
45 | #include "ospfd/ospf_abr.h" | |
46 | #include "ospfd/ospf_lsa.h" | |
47 | #include "ospfd/ospf_dump.h" | |
48 | #include "ospfd/ospf_route.h" | |
d5a5c8f0 DS |
49 | #include "ospfd/ospf_lsdb.h" |
50 | #include "ospfd/ospf_neighbor.h" | |
51 | #include "ospfd/ospf_nsm.h" | |
718e3744 | 52 | #include "ospfd/ospf_zebra.h" |
16f1b9ee | 53 | #include "ospfd/ospf_te.h" |
718e3744 | 54 | |
ac4d0be5 | 55 | DEFINE_HOOK(ospf_if_update, (struct interface * ifp), (ifp)) |
56 | DEFINE_HOOK(ospf_if_delete, (struct interface * ifp), (ifp)) | |
3012671f | 57 | |
718e3744 | 58 | /* Zebra structure to hold current status. */ |
59 | struct zclient *zclient = NULL; | |
60 | ||
61 | /* For registering threads. */ | |
62 | extern struct thread_master *master; | |
18a6dce6 | 63 | struct in_addr router_id_zebra; |
64 | ||
65 | /* Router-id update message from zebra. */ | |
ac4d0be5 | 66 | static int ospf_router_id_update_zebra(int command, struct zclient *zclient, |
67 | zebra_size_t length, vrf_id_t vrf_id) | |
18a6dce6 | 68 | { |
ac4d0be5 | 69 | struct ospf *ospf; |
70 | struct prefix router_id; | |
71 | zebra_router_id_update_read(zclient->ibuf, &router_id); | |
72 | ||
73 | if (IS_DEBUG_OSPF(zebra, ZEBRA_INTERFACE)) { | |
74 | char buf[PREFIX2STR_BUFFER]; | |
75 | prefix2str(&router_id, buf, sizeof(buf)); | |
76 | zlog_debug("Zebra rcvd: router id update %s", buf); | |
77 | } | |
78 | ||
79 | router_id_zebra = router_id.u.prefix4; | |
80 | ||
81 | ospf = ospf_lookup(); | |
82 | ||
83 | if (ospf != NULL) | |
84 | ospf_router_id_update(ospf); | |
85 | ||
86 | return 0; | |
18a6dce6 | 87 | } |
718e3744 | 88 | |
89 | /* Inteface addition message from zebra. */ | |
ac4d0be5 | 90 | static int ospf_interface_add(int command, struct zclient *zclient, |
91 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 92 | { |
ac4d0be5 | 93 | struct interface *ifp; |
718e3744 | 94 | |
ac4d0be5 | 95 | ifp = zebra_interface_add_read(zclient->ibuf, vrf_id); |
718e3744 | 96 | |
ac4d0be5 | 97 | if (IS_DEBUG_OSPF(zebra, ZEBRA_INTERFACE)) |
98 | zlog_debug( | |
99 | "Zebra: interface add %s[%u] index %d flags %llx metric %d mtu %d", | |
100 | ifp->name, ifp->vrf_id, ifp->ifindex, | |
101 | (unsigned long long)ifp->flags, ifp->metric, ifp->mtu); | |
718e3744 | 102 | |
ac4d0be5 | 103 | assert(ifp->info); |
f2c80652 | 104 | |
ac4d0be5 | 105 | if (!OSPF_IF_PARAM_CONFIGURED(IF_DEF_PARAMS(ifp), type)) { |
106 | SET_IF_PARAM(IF_DEF_PARAMS(ifp), type); | |
107 | IF_DEF_PARAMS(ifp)->type = ospf_default_iftype(ifp); | |
108 | } | |
718e3744 | 109 | |
ac4d0be5 | 110 | ospf_if_update(NULL, ifp); |
718e3744 | 111 | |
ac4d0be5 | 112 | hook_call(ospf_if_update, ifp); |
718e3744 | 113 | |
ac4d0be5 | 114 | return 0; |
718e3744 | 115 | } |
116 | ||
ac4d0be5 | 117 | static int ospf_interface_delete(int command, struct zclient *zclient, |
118 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 119 | { |
ac4d0be5 | 120 | struct interface *ifp; |
121 | struct stream *s; | |
122 | struct route_node *rn; | |
718e3744 | 123 | |
ac4d0be5 | 124 | s = zclient->ibuf; |
125 | /* zebra_interface_state_read() updates interface structure in iflist */ | |
126 | ifp = zebra_interface_state_read(s, vrf_id); | |
718e3744 | 127 | |
ac4d0be5 | 128 | if (ifp == NULL) |
129 | return 0; | |
718e3744 | 130 | |
ac4d0be5 | 131 | if (if_is_up(ifp)) |
132 | zlog_warn("Zebra: got delete of %s, but interface is still up", | |
133 | ifp->name); | |
cf795c5d | 134 | |
ac4d0be5 | 135 | if (IS_DEBUG_OSPF(zebra, ZEBRA_INTERFACE)) |
136 | zlog_debug( | |
137 | "Zebra: interface delete %s[%u] index %d flags %llx metric %d mtu %d", | |
138 | ifp->name, ifp->vrf_id, ifp->ifindex, | |
139 | (unsigned long long)ifp->flags, ifp->metric, ifp->mtu); | |
718e3744 | 140 | |
ac4d0be5 | 141 | hook_call(ospf_if_delete, ifp); |
718e3744 | 142 | |
ac4d0be5 | 143 | for (rn = route_top(IF_OIFS(ifp)); rn; rn = route_next(rn)) |
144 | if (rn->info) | |
145 | ospf_if_free((struct ospf_interface *)rn->info); | |
718e3744 | 146 | |
ac4d0be5 | 147 | ifp->ifindex = IFINDEX_DELETED; |
148 | return 0; | |
718e3744 | 149 | } |
150 | ||
ac4d0be5 | 151 | static struct interface *zebra_interface_if_lookup(struct stream *s, |
152 | vrf_id_t vrf_id) | |
718e3744 | 153 | { |
ac4d0be5 | 154 | char ifname_tmp[INTERFACE_NAMSIZ]; |
718e3744 | 155 | |
ac4d0be5 | 156 | /* Read interface name. */ |
157 | stream_get(ifname_tmp, s, INTERFACE_NAMSIZ); | |
718e3744 | 158 | |
ac4d0be5 | 159 | /* And look it up. */ |
160 | return if_lookup_by_name_len( | |
161 | ifname_tmp, strnlen(ifname_tmp, INTERFACE_NAMSIZ), VRF_DEFAULT); | |
718e3744 | 162 | } |
163 | ||
ac4d0be5 | 164 | static int ospf_interface_state_up(int command, struct zclient *zclient, |
165 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 166 | { |
ac4d0be5 | 167 | struct interface *ifp; |
168 | struct ospf_interface *oi; | |
169 | struct route_node *rn; | |
170 | ||
171 | ifp = zebra_interface_if_lookup(zclient->ibuf, vrf_id); | |
172 | ||
173 | if (ifp == NULL) | |
174 | return 0; | |
175 | ||
176 | /* Interface is already up. */ | |
177 | if (if_is_operative(ifp)) { | |
178 | /* Temporarily keep ifp values. */ | |
179 | struct interface if_tmp; | |
180 | memcpy(&if_tmp, ifp, sizeof(struct interface)); | |
181 | ||
182 | zebra_interface_if_set_value(zclient->ibuf, ifp); | |
183 | ||
184 | if (IS_DEBUG_OSPF(zebra, ZEBRA_INTERFACE)) | |
185 | zlog_debug( | |
186 | "Zebra: Interface[%s] state update speed %u -> %u, bw %d -> %d", | |
187 | ifp->name, if_tmp.speed, ifp->speed, | |
188 | if_tmp.bandwidth, ifp->bandwidth); | |
189 | ||
190 | ospf_if_recalculate_output_cost(ifp); | |
191 | ||
192 | if (if_tmp.mtu != ifp->mtu) { | |
193 | if (IS_DEBUG_OSPF(zebra, ZEBRA_INTERFACE)) | |
194 | zlog_debug( | |
195 | "Zebra: Interface[%s] MTU change %u -> %u.", | |
196 | ifp->name, if_tmp.mtu, ifp->mtu); | |
197 | ||
198 | /* Must reset the interface (simulate down/up) when MTU | |
199 | * changes. */ | |
200 | ospf_if_reset(ifp); | |
201 | } | |
202 | return 0; | |
a608bbf2 | 203 | } |
cf795c5d | 204 | |
ac4d0be5 | 205 | zebra_interface_if_set_value(zclient->ibuf, ifp); |
cf795c5d | 206 | |
ac4d0be5 | 207 | if (IS_DEBUG_OSPF(zebra, ZEBRA_INTERFACE)) |
208 | zlog_debug("Zebra: Interface[%s] state change to up.", | |
209 | ifp->name); | |
cf795c5d | 210 | |
ac4d0be5 | 211 | for (rn = route_top(IF_OIFS(ifp)); rn; rn = route_next(rn)) { |
212 | if ((oi = rn->info) == NULL) | |
213 | continue; | |
cf795c5d | 214 | |
ac4d0be5 | 215 | ospf_if_up(oi); |
216 | } | |
cf795c5d | 217 | |
ac4d0be5 | 218 | return 0; |
718e3744 | 219 | } |
220 | ||
ac4d0be5 | 221 | static int ospf_interface_state_down(int command, struct zclient *zclient, |
222 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 223 | { |
ac4d0be5 | 224 | struct interface *ifp; |
225 | struct ospf_interface *oi; | |
226 | struct route_node *node; | |
718e3744 | 227 | |
ac4d0be5 | 228 | ifp = zebra_interface_state_read(zclient->ibuf, vrf_id); |
718e3744 | 229 | |
ac4d0be5 | 230 | if (ifp == NULL) |
231 | return 0; | |
718e3744 | 232 | |
ac4d0be5 | 233 | if (IS_DEBUG_OSPF(zebra, ZEBRA_INTERFACE)) |
234 | zlog_debug("Zebra: Interface[%s] state change to down.", | |
235 | ifp->name); | |
718e3744 | 236 | |
ac4d0be5 | 237 | for (node = route_top(IF_OIFS(ifp)); node; node = route_next(node)) { |
238 | if ((oi = node->info) == NULL) | |
239 | continue; | |
240 | ospf_if_down(oi); | |
241 | } | |
718e3744 | 242 | |
ac4d0be5 | 243 | return 0; |
718e3744 | 244 | } |
245 | ||
ac4d0be5 | 246 | static int ospf_interface_address_add(int command, struct zclient *zclient, |
247 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 248 | { |
ac4d0be5 | 249 | struct connected *c; |
718e3744 | 250 | |
ac4d0be5 | 251 | c = zebra_interface_address_read(command, zclient->ibuf, vrf_id); |
718e3744 | 252 | |
ac4d0be5 | 253 | if (c == NULL) |
254 | return 0; | |
718e3744 | 255 | |
ac4d0be5 | 256 | if (IS_DEBUG_OSPF(zebra, ZEBRA_INTERFACE)) { |
257 | char buf[PREFIX2STR_BUFFER]; | |
258 | prefix2str(c->address, buf, sizeof(buf)); | |
259 | zlog_debug("Zebra: interface %s address add %s", c->ifp->name, | |
260 | buf); | |
261 | } | |
7f643ebf | 262 | |
ac4d0be5 | 263 | ospf_if_update(NULL, c->ifp); |
718e3744 | 264 | |
ac4d0be5 | 265 | hook_call(ospf_if_update, c->ifp); |
718e3744 | 266 | |
ac4d0be5 | 267 | return 0; |
718e3744 | 268 | } |
269 | ||
ac4d0be5 | 270 | static int ospf_interface_address_delete(int command, struct zclient *zclient, |
271 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 272 | { |
ac4d0be5 | 273 | struct connected *c; |
274 | struct interface *ifp; | |
275 | struct ospf_interface *oi; | |
276 | struct route_node *rn; | |
277 | struct prefix p; | |
278 | ||
279 | c = zebra_interface_address_read(command, zclient->ibuf, vrf_id); | |
280 | ||
281 | if (c == NULL) | |
282 | return 0; | |
283 | ||
284 | if (IS_DEBUG_OSPF(zebra, ZEBRA_INTERFACE)) { | |
285 | char buf[PREFIX2STR_BUFFER]; | |
286 | prefix2str(c->address, buf, sizeof(buf)); | |
287 | zlog_debug("Zebra: interface %s address delete %s", | |
288 | c->ifp->name, buf); | |
289 | } | |
7f643ebf | 290 | |
ac4d0be5 | 291 | ifp = c->ifp; |
292 | p = *c->address; | |
293 | p.prefixlen = IPV4_MAX_PREFIXLEN; | |
718e3744 | 294 | |
ac4d0be5 | 295 | rn = route_node_lookup(IF_OIFS(ifp), &p); |
296 | if (!rn) { | |
297 | connected_free(c); | |
298 | return 0; | |
299 | } | |
718e3744 | 300 | |
ac4d0be5 | 301 | assert(rn->info); |
302 | oi = rn->info; | |
303 | route_unlock_node(rn); | |
cf795c5d | 304 | |
ac4d0be5 | 305 | /* Call interface hook functions to clean up */ |
306 | ospf_if_free(oi); | |
cf795c5d | 307 | |
ac4d0be5 | 308 | hook_call(ospf_if_update, c->ifp); |
718e3744 | 309 | |
ac4d0be5 | 310 | connected_free(c); |
718e3744 | 311 | |
ac4d0be5 | 312 | return 0; |
718e3744 | 313 | } |
72357f2b | 314 | |
ac4d0be5 | 315 | static int ospf_interface_link_params(int command, struct zclient *zclient, |
316 | zebra_size_t length) | |
16f1b9ee | 317 | { |
ac4d0be5 | 318 | struct interface *ifp; |
16f1b9ee | 319 | |
ac4d0be5 | 320 | ifp = zebra_interface_link_params_read(zclient->ibuf); |
16f1b9ee | 321 | |
ac4d0be5 | 322 | if (ifp == NULL) |
323 | return 0; | |
16f1b9ee | 324 | |
ac4d0be5 | 325 | /* Update TE TLV */ |
326 | ospf_mpls_te_update_if(ifp); | |
16f1b9ee | 327 | |
ac4d0be5 | 328 | return 0; |
16f1b9ee OD |
329 | } |
330 | ||
331 | ||
ac4d0be5 | 332 | void ospf_zebra_add(struct prefix_ipv4 *p, struct ospf_route * or) |
718e3744 | 333 | { |
ac4d0be5 | 334 | u_char message; |
335 | u_char distance; | |
336 | u_int32_t flags; | |
337 | int psize; | |
338 | struct stream *s; | |
339 | struct ospf_path *path; | |
340 | struct listnode *node; | |
341 | struct ospf *ospf = ospf_lookup(); | |
342 | ||
343 | if ((ospf->instance | |
344 | && redist_check_instance( | |
345 | &zclient->mi_redist[AFI_IP][ZEBRA_ROUTE_OSPF], | |
346 | ospf->instance)) | |
347 | || vrf_bitmap_check(zclient->redist[AFI_IP][ZEBRA_ROUTE_OSPF], | |
348 | VRF_DEFAULT)) { | |
349 | message = 0; | |
350 | flags = 0; | |
351 | ||
352 | /* OSPF pass nexthop and metric */ | |
353 | SET_FLAG(message, ZAPI_MESSAGE_NEXTHOP); | |
354 | SET_FLAG(message, ZAPI_MESSAGE_METRIC); | |
355 | ||
356 | /* Distance value. */ | |
357 | distance = ospf_distance_apply(p, or); | |
358 | if (distance) | |
359 | SET_FLAG(message, ZAPI_MESSAGE_DISTANCE); | |
360 | ||
361 | /* Check if path type is ASE */ | |
362 | if (((or->path_type == OSPF_PATH_TYPE1_EXTERNAL) | |
363 | || (or->path_type == OSPF_PATH_TYPE2_EXTERNAL)) | |
364 | && (or->u.ext.tag > 0) && (or->u.ext.tag <= ROUTE_TAG_MAX)) | |
365 | SET_FLAG(message, ZAPI_MESSAGE_TAG); | |
366 | ||
367 | /* Make packet. */ | |
368 | s = zclient->obuf; | |
369 | stream_reset(s); | |
370 | ||
371 | /* Put command, type, flags, message. */ | |
372 | zclient_create_header(s, ZEBRA_IPV4_ROUTE_ADD, VRF_DEFAULT); | |
373 | stream_putc(s, ZEBRA_ROUTE_OSPF); | |
374 | stream_putw(s, ospf->instance); | |
375 | stream_putl(s, flags); | |
376 | stream_putc(s, message); | |
377 | stream_putw(s, SAFI_UNICAST); | |
378 | ||
379 | /* Put prefix information. */ | |
380 | psize = PSIZE(p->prefixlen); | |
381 | stream_putc(s, p->prefixlen); | |
382 | stream_write(s, (u_char *)&p->prefix, psize); | |
383 | ||
384 | /* Nexthop count. */ | |
385 | stream_putc(s, or->paths->count); | |
386 | ||
387 | /* Nexthop, ifindex, distance and metric information. */ | |
388 | for (ALL_LIST_ELEMENTS_RO(or->paths, node, path)) { | |
525c1839 | 389 | #ifdef HAVE_NETLINK |
ac4d0be5 | 390 | if (path->unnumbered |
391 | || (path->nexthop.s_addr != INADDR_ANY | |
392 | && path->ifindex != 0)) { | |
393 | stream_putc(s, NEXTHOP_TYPE_IPV4_IFINDEX); | |
394 | stream_put_in_addr(s, &path->nexthop); | |
395 | stream_putl(s, path->ifindex); | |
396 | } else if (path->nexthop.s_addr != INADDR_ANY) { | |
397 | stream_putc(s, NEXTHOP_TYPE_IPV4); | |
398 | stream_put_in_addr(s, &path->nexthop); | |
399 | } else { | |
400 | stream_putc(s, NEXTHOP_TYPE_IFINDEX); | |
401 | if (path->ifindex) | |
402 | stream_putl(s, path->ifindex); | |
403 | else | |
404 | stream_putl(s, 0); | |
405 | } | |
525c1839 | 406 | #else /* HAVE_NETLINK */ |
ac4d0be5 | 407 | if (path->nexthop.s_addr != INADDR_ANY |
408 | && path->ifindex != 0) { | |
409 | stream_putc(s, NEXTHOP_TYPE_IPV4_IFINDEX); | |
410 | stream_put_in_addr(s, &path->nexthop); | |
411 | stream_putl(s, path->ifindex); | |
412 | } else if (path->nexthop.s_addr != INADDR_ANY) { | |
413 | stream_putc(s, NEXTHOP_TYPE_IPV4); | |
414 | stream_put_in_addr(s, &path->nexthop); | |
415 | } else { | |
416 | stream_putc(s, NEXTHOP_TYPE_IFINDEX); | |
417 | if (path->ifindex) | |
418 | stream_putl(s, path->ifindex); | |
419 | else | |
420 | stream_putl(s, 0); | |
421 | } | |
525c1839 | 422 | #endif /* HAVE_NETLINK */ |
72357f2b | 423 | |
ac4d0be5 | 424 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) { |
425 | char buf[2][INET_ADDRSTRLEN]; | |
426 | zlog_debug( | |
427 | "Zebra: Route add %s/%d nexthop %s, ifindex=%d", | |
428 | inet_ntop(AF_INET, &p->prefix, buf[0], | |
429 | sizeof(buf[0])), | |
430 | p->prefixlen, | |
431 | inet_ntop(AF_INET, &path->nexthop, | |
432 | buf[1], sizeof(buf[1])), | |
433 | path->ifindex); | |
434 | } | |
435 | } | |
436 | ||
437 | if (CHECK_FLAG(message, ZAPI_MESSAGE_DISTANCE)) | |
438 | stream_putc(s, distance); | |
439 | if (CHECK_FLAG(message, ZAPI_MESSAGE_METRIC)) { | |
440 | if (or->path_type == OSPF_PATH_TYPE1_EXTERNAL) | |
441 | stream_putl(s, or->cost + or->u.ext.type2_cost); | |
442 | else if (or->path_type == OSPF_PATH_TYPE2_EXTERNAL) | |
443 | stream_putl(s, or->u.ext.type2_cost); | |
444 | else | |
445 | stream_putl(s, or->cost); | |
446 | } | |
447 | ||
448 | if (CHECK_FLAG(message, ZAPI_MESSAGE_TAG)) | |
449 | stream_putl(s, or->u.ext.tag); | |
450 | ||
451 | stream_putw_at(s, 0, stream_get_endp(s)); | |
452 | ||
453 | zclient_send_message(zclient); | |
454 | } | |
718e3744 | 455 | } |
456 | ||
ac4d0be5 | 457 | void ospf_zebra_delete(struct prefix_ipv4 *p, struct ospf_route * or) |
718e3744 | 458 | { |
ac4d0be5 | 459 | u_char message; |
460 | u_char distance; | |
461 | u_int32_t flags; | |
462 | int psize; | |
463 | struct stream *s; | |
464 | struct ospf_path *path; | |
465 | struct listnode *node; | |
466 | struct ospf *ospf = ospf_lookup(); | |
467 | ||
468 | if ((ospf->instance | |
469 | && redist_check_instance( | |
470 | &zclient->mi_redist[AFI_IP][ZEBRA_ROUTE_OSPF], | |
471 | ospf->instance)) | |
472 | || vrf_bitmap_check(zclient->redist[AFI_IP][ZEBRA_ROUTE_OSPF], | |
473 | VRF_DEFAULT)) { | |
474 | message = 0; | |
475 | flags = 0; | |
476 | /* Distance value. */ | |
477 | distance = ospf_distance_apply(p, or); | |
478 | /* Make packet. */ | |
479 | s = zclient->obuf; | |
480 | stream_reset(s); | |
481 | ||
482 | /* Put command, type, flags, message. */ | |
483 | zclient_create_header(s, ZEBRA_IPV4_ROUTE_DELETE, VRF_DEFAULT); | |
484 | stream_putc(s, ZEBRA_ROUTE_OSPF); | |
485 | stream_putw(s, ospf->instance); | |
486 | stream_putl(s, flags); | |
487 | stream_putc(s, message); | |
488 | stream_putw(s, SAFI_UNICAST); | |
489 | ||
490 | /* Put prefix information. */ | |
491 | psize = PSIZE(p->prefixlen); | |
492 | stream_putc(s, p->prefixlen); | |
493 | stream_write(s, (u_char *)&p->prefix, psize); | |
494 | ||
495 | /* Nexthop count. */ | |
496 | stream_putc(s, or->paths->count); | |
497 | ||
498 | /* Nexthop, ifindex, distance and metric information. */ | |
499 | for (ALL_LIST_ELEMENTS_RO(or->paths, node, path)) { | |
500 | if (path->nexthop.s_addr != INADDR_ANY | |
501 | && path->ifindex != 0) { | |
502 | stream_putc(s, NEXTHOP_TYPE_IPV4_IFINDEX); | |
503 | stream_put_in_addr(s, &path->nexthop); | |
504 | stream_putl(s, path->ifindex); | |
505 | } else if (path->nexthop.s_addr != INADDR_ANY) { | |
506 | stream_putc(s, NEXTHOP_TYPE_IPV4); | |
507 | stream_put_in_addr(s, &path->nexthop); | |
508 | } else { | |
509 | stream_putc(s, NEXTHOP_TYPE_IFINDEX); | |
510 | stream_putl(s, path->ifindex); | |
511 | } | |
512 | ||
513 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) { | |
514 | char buf[2][INET_ADDRSTRLEN]; | |
515 | zlog_debug( | |
516 | "Zebra: Route delete %s/%d nexthop %s", | |
517 | inet_ntop(AF_INET, &p->prefix, buf[0], | |
518 | sizeof(buf[0])), | |
519 | p->prefixlen, | |
520 | inet_ntop(AF_INET, &path->nexthop, | |
521 | buf[1], sizeof(buf[1]))); | |
522 | } | |
523 | } | |
524 | ||
525 | if (CHECK_FLAG(message, ZAPI_MESSAGE_DISTANCE)) | |
526 | stream_putc(s, distance); | |
527 | if (CHECK_FLAG(message, ZAPI_MESSAGE_METRIC)) { | |
528 | if (or->path_type == OSPF_PATH_TYPE1_EXTERNAL) | |
529 | stream_putl(s, or->cost + or->u.ext.type2_cost); | |
530 | else if (or->path_type == OSPF_PATH_TYPE2_EXTERNAL) | |
531 | stream_putl(s, or->u.ext.type2_cost); | |
532 | else | |
533 | stream_putl(s, or->cost); | |
534 | } | |
535 | ||
536 | stream_putw_at(s, 0, stream_get_endp(s)); | |
537 | ||
538 | zclient_send_message(zclient); | |
ba281d3d | 539 | } |
718e3744 | 540 | } |
541 | ||
ac4d0be5 | 542 | void ospf_zebra_add_discard(struct prefix_ipv4 *p) |
718e3744 | 543 | { |
ac4d0be5 | 544 | struct zapi_ipv4 api; |
545 | struct ospf *ospf = ospf_lookup(); | |
546 | ||
547 | if ((ospf->instance | |
548 | && redist_check_instance( | |
549 | &zclient->mi_redist[AFI_IP][ZEBRA_ROUTE_OSPF], | |
550 | ospf->instance)) | |
551 | || vrf_bitmap_check(zclient->redist[AFI_IP][ZEBRA_ROUTE_OSPF], | |
552 | VRF_DEFAULT)) { | |
553 | api.vrf_id = VRF_DEFAULT; | |
554 | api.type = ZEBRA_ROUTE_OSPF; | |
555 | api.instance = ospf->instance; | |
556 | api.flags = ZEBRA_FLAG_BLACKHOLE; | |
557 | api.message = 0; | |
558 | api.safi = SAFI_UNICAST; | |
559 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
560 | api.nexthop_num = 0; | |
561 | api.ifindex_num = 0; | |
562 | api.tag = 0; | |
563 | ||
564 | zapi_ipv4_route(ZEBRA_IPV4_ROUTE_ADD, zclient, p, &api); | |
565 | ||
566 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) | |
567 | zlog_debug("Zebra: Route add discard %s/%d", | |
568 | inet_ntoa(p->prefix), p->prefixlen); | |
569 | } | |
718e3744 | 570 | } |
571 | ||
ac4d0be5 | 572 | void ospf_zebra_delete_discard(struct prefix_ipv4 *p) |
718e3744 | 573 | { |
ac4d0be5 | 574 | struct zapi_ipv4 api; |
575 | struct ospf *ospf = ospf_lookup(); | |
576 | ||
577 | if ((ospf->instance | |
578 | && redist_check_instance( | |
579 | &zclient->mi_redist[AFI_IP][ZEBRA_ROUTE_OSPF], | |
580 | ospf->instance)) | |
581 | || vrf_bitmap_check(zclient->redist[AFI_IP][ZEBRA_ROUTE_OSPF], | |
582 | VRF_DEFAULT)) { | |
583 | api.vrf_id = VRF_DEFAULT; | |
584 | api.type = ZEBRA_ROUTE_OSPF; | |
585 | api.instance = ospf->instance; | |
586 | api.flags = ZEBRA_FLAG_BLACKHOLE; | |
587 | api.message = 0; | |
588 | api.safi = SAFI_UNICAST; | |
589 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
590 | api.nexthop_num = 0; | |
591 | api.ifindex_num = 0; | |
592 | api.tag = 0; | |
593 | ||
594 | zapi_ipv4_route(ZEBRA_IPV4_ROUTE_DELETE, zclient, p, &api); | |
595 | ||
596 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) | |
597 | zlog_debug("Zebra: Route delete discard %s/%d", | |
598 | inet_ntoa(p->prefix), p->prefixlen); | |
599 | } | |
718e3744 | 600 | } |
601 | ||
ac4d0be5 | 602 | struct ospf_external *ospf_external_lookup(u_char type, u_short instance) |
7c8ff89e | 603 | { |
ac4d0be5 | 604 | struct list *ext_list; |
605 | struct listnode *node; | |
606 | struct ospf_external *ext; | |
7c8ff89e | 607 | |
ac4d0be5 | 608 | ext_list = om->external[type]; |
609 | if (!ext_list) | |
610 | return (NULL); | |
7c8ff89e | 611 | |
ac4d0be5 | 612 | for (ALL_LIST_ELEMENTS_RO(ext_list, node, ext)) |
613 | if (ext->instance == instance) | |
614 | return ext; | |
7c8ff89e | 615 | |
ac4d0be5 | 616 | return NULL; |
7c8ff89e DS |
617 | } |
618 | ||
ac4d0be5 | 619 | struct ospf_external *ospf_external_add(u_char type, u_short instance) |
7c8ff89e | 620 | { |
ac4d0be5 | 621 | struct list *ext_list; |
622 | struct ospf_external *ext; | |
7c8ff89e | 623 | |
ac4d0be5 | 624 | ext = ospf_external_lookup(type, instance); |
625 | if (ext) | |
626 | return ext; | |
7c8ff89e | 627 | |
ac4d0be5 | 628 | if (!om->external[type]) |
629 | om->external[type] = list_new(); | |
7c8ff89e | 630 | |
ac4d0be5 | 631 | ext_list = om->external[type]; |
632 | ext = (struct ospf_external *)calloc(1, sizeof(struct ospf_external)); | |
633 | ext->instance = instance; | |
634 | EXTERNAL_INFO(ext) = route_table_init(); | |
7c8ff89e | 635 | |
ac4d0be5 | 636 | listnode_add(ext_list, ext); |
7c8ff89e | 637 | |
ac4d0be5 | 638 | return ext; |
7c8ff89e DS |
639 | } |
640 | ||
ac4d0be5 | 641 | void ospf_external_del(u_char type, u_short instance) |
7c8ff89e | 642 | { |
ac4d0be5 | 643 | struct ospf_external *ext; |
644 | ||
645 | ext = ospf_external_lookup(type, instance); | |
646 | ||
647 | if (ext) { | |
648 | if (EXTERNAL_INFO(ext)) | |
649 | route_table_finish(EXTERNAL_INFO(ext)); | |
650 | ||
651 | listnode_delete(om->external[type], ext); | |
652 | if (!om->external[type]->count) { | |
653 | list_free(om->external[type]); | |
654 | om->external[type] = NULL; | |
655 | } | |
656 | } | |
7c8ff89e DS |
657 | } |
658 | ||
ac4d0be5 | 659 | struct ospf_redist *ospf_redist_lookup(struct ospf *ospf, u_char type, |
660 | u_short instance) | |
7c8ff89e | 661 | { |
ac4d0be5 | 662 | struct list *red_list; |
663 | struct listnode *node; | |
664 | struct ospf_redist *red; | |
7c8ff89e | 665 | |
ac4d0be5 | 666 | red_list = ospf->redist[type]; |
667 | if (!red_list) | |
668 | return (NULL); | |
7c8ff89e | 669 | |
ac4d0be5 | 670 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) |
671 | if (red->instance == instance) | |
672 | return red; | |
7c8ff89e | 673 | |
ac4d0be5 | 674 | return NULL; |
7c8ff89e DS |
675 | } |
676 | ||
ac4d0be5 | 677 | struct ospf_redist *ospf_redist_add(struct ospf *ospf, u_char type, |
678 | u_short instance) | |
7c8ff89e | 679 | { |
ac4d0be5 | 680 | struct list *red_list; |
681 | struct ospf_redist *red; | |
7c8ff89e | 682 | |
ac4d0be5 | 683 | red = ospf_redist_lookup(ospf, type, instance); |
684 | if (red) | |
685 | return red; | |
7c8ff89e | 686 | |
ac4d0be5 | 687 | if (!ospf->redist[type]) |
688 | ospf->redist[type] = list_new(); | |
7c8ff89e | 689 | |
ac4d0be5 | 690 | red_list = ospf->redist[type]; |
691 | red = (struct ospf_redist *)calloc(1, sizeof(struct ospf_redist)); | |
692 | red->instance = instance; | |
693 | red->dmetric.type = -1; | |
694 | red->dmetric.value = -1; | |
7c8ff89e | 695 | |
ac4d0be5 | 696 | listnode_add(red_list, red); |
7c8ff89e | 697 | |
ac4d0be5 | 698 | return red; |
7c8ff89e DS |
699 | } |
700 | ||
ac4d0be5 | 701 | void ospf_redist_del(struct ospf *ospf, u_char type, u_short instance) |
7c8ff89e | 702 | { |
ac4d0be5 | 703 | struct ospf_redist *red; |
704 | ||
705 | red = ospf_redist_lookup(ospf, type, instance); | |
706 | ||
707 | if (red) { | |
708 | listnode_delete(ospf->redist[type], red); | |
709 | if (!ospf->redist[type]->count) { | |
710 | list_free(ospf->redist[type]); | |
711 | ospf->redist[type] = NULL; | |
712 | } | |
713 | } | |
7c8ff89e DS |
714 | } |
715 | ||
716 | ||
ac4d0be5 | 717 | int ospf_is_type_redistributed(int type, u_short instance) |
718e3744 | 718 | { |
ac4d0be5 | 719 | return (DEFAULT_ROUTE_TYPE(type) |
720 | ? vrf_bitmap_check(zclient->default_information, | |
721 | VRF_DEFAULT) | |
722 | : ((instance | |
723 | && redist_check_instance( | |
724 | &zclient->mi_redist[AFI_IP][type], | |
725 | instance)) | |
726 | || (!instance | |
727 | && vrf_bitmap_check( | |
728 | zclient->redist[AFI_IP][type], | |
729 | VRF_DEFAULT)))); | |
718e3744 | 730 | } |
731 | ||
ac4d0be5 | 732 | int ospf_redistribute_set(struct ospf *ospf, int type, u_short instance, |
733 | int mtype, int mvalue) | |
718e3744 | 734 | { |
ac4d0be5 | 735 | int force = 0; |
736 | struct ospf_redist *red; | |
737 | ||
738 | red = ospf_redist_lookup(ospf, type, instance); | |
739 | if (ospf_is_type_redistributed(type, instance)) { | |
740 | if (mtype != red->dmetric.type) { | |
741 | red->dmetric.type = mtype; | |
742 | force = LSA_REFRESH_FORCE; | |
743 | } | |
744 | if (mvalue != red->dmetric.value) { | |
745 | red->dmetric.value = mvalue; | |
746 | force = LSA_REFRESH_FORCE; | |
747 | } | |
748 | ||
749 | ospf_external_lsa_refresh_type(ospf, type, instance, force); | |
750 | ||
751 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) | |
752 | zlog_debug( | |
753 | "Redistribute[%s][%d]: Refresh Type[%d], Metric[%d]", | |
754 | ospf_redist_string(type), instance, | |
755 | metric_type(ospf, type, instance), | |
756 | metric_value(ospf, type, instance)); | |
757 | ||
758 | return CMD_SUCCESS; | |
759 | } | |
760 | ||
761 | red->dmetric.type = mtype; | |
762 | red->dmetric.value = mvalue; | |
763 | ||
764 | ospf_external_add(type, instance); | |
765 | ||
766 | zclient_redistribute(ZEBRA_REDISTRIBUTE_ADD, zclient, AFI_IP, type, | |
767 | instance, VRF_DEFAULT); | |
768 | ||
769 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) | |
770 | zlog_debug("Redistribute[%s][%d]: Start Type[%d], Metric[%d]", | |
771 | ospf_redist_string(type), instance, | |
772 | metric_type(ospf, type, instance), | |
773 | metric_value(ospf, type, instance)); | |
774 | ||
775 | ospf_asbr_status_update(ospf, ++ospf->redistribute); | |
776 | ||
777 | return CMD_SUCCESS; | |
718e3744 | 778 | } |
779 | ||
ac4d0be5 | 780 | int ospf_redistribute_unset(struct ospf *ospf, int type, u_short instance) |
718e3744 | 781 | { |
ac4d0be5 | 782 | if (type == zclient->redist_default && instance == zclient->instance) |
783 | return CMD_SUCCESS; | |
718e3744 | 784 | |
ac4d0be5 | 785 | if (!ospf_is_type_redistributed(type, instance)) |
786 | return CMD_SUCCESS; | |
718e3744 | 787 | |
ac4d0be5 | 788 | zclient_redistribute(ZEBRA_REDISTRIBUTE_DELETE, zclient, AFI_IP, type, |
789 | instance, VRF_DEFAULT); | |
cf795c5d | 790 | |
ac4d0be5 | 791 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
792 | zlog_debug("Redistribute[%s][%d]: Stop", | |
793 | ospf_redist_string(type), instance); | |
718e3744 | 794 | |
ac4d0be5 | 795 | ospf_redist_del(ospf, type, instance); |
718e3744 | 796 | |
ac4d0be5 | 797 | /* Remove the routes from OSPF table. */ |
798 | ospf_redistribute_withdraw(ospf, type, instance); | |
7c8ff89e | 799 | |
ac4d0be5 | 800 | ospf_external_del(type, instance); |
718e3744 | 801 | |
ac4d0be5 | 802 | ospf_asbr_status_update(ospf, --ospf->redistribute); |
718e3744 | 803 | |
ac4d0be5 | 804 | return CMD_SUCCESS; |
718e3744 | 805 | } |
806 | ||
ac4d0be5 | 807 | int ospf_redistribute_default_set(struct ospf *ospf, int originate, int mtype, |
808 | int mvalue) | |
718e3744 | 809 | { |
ac4d0be5 | 810 | struct ospf_redist *red; |
7c8ff89e | 811 | |
ac4d0be5 | 812 | ospf->default_originate = originate; |
020709f9 | 813 | |
ac4d0be5 | 814 | red = ospf_redist_add(ospf, DEFAULT_ROUTE, 0); |
815 | red->dmetric.type = mtype; | |
816 | red->dmetric.value = mvalue; | |
7c8ff89e | 817 | |
ac4d0be5 | 818 | ospf_external_add(DEFAULT_ROUTE, 0); |
7c8ff89e | 819 | |
ac4d0be5 | 820 | if (ospf_is_type_redistributed(DEFAULT_ROUTE, 0)) { |
821 | /* if ospf->default_originate changes value, is calling | |
822 | ospf_external_lsa_refresh_default sufficient to implement | |
823 | the change? */ | |
824 | ospf_external_lsa_refresh_default(ospf); | |
cf795c5d | 825 | |
ac4d0be5 | 826 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
827 | zlog_debug( | |
828 | "Redistribute[%s]: Refresh Type[%d], Metric[%d]", | |
829 | ospf_redist_string(DEFAULT_ROUTE), | |
830 | metric_type(ospf, DEFAULT_ROUTE, 0), | |
831 | metric_value(ospf, DEFAULT_ROUTE, 0)); | |
832 | return CMD_SUCCESS; | |
833 | } | |
718e3744 | 834 | |
ac4d0be5 | 835 | zclient_redistribute_default(ZEBRA_REDISTRIBUTE_DEFAULT_ADD, zclient, |
836 | VRF_DEFAULT); | |
cf795c5d | 837 | |
ac4d0be5 | 838 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
839 | zlog_debug("Redistribute[DEFAULT]: Start Type[%d], Metric[%d]", | |
840 | metric_type(ospf, DEFAULT_ROUTE, 0), | |
841 | metric_value(ospf, DEFAULT_ROUTE, 0)); | |
718e3744 | 842 | |
ac4d0be5 | 843 | if (ospf->router_id.s_addr == 0) |
844 | ospf->external_origin |= (1 << DEFAULT_ROUTE); | |
845 | else | |
846 | thread_add_timer(master, ospf_default_originate_timer, ospf, 1); | |
718e3744 | 847 | |
ac4d0be5 | 848 | ospf_asbr_status_update(ospf, ++ospf->redistribute); |
718e3744 | 849 | |
ac4d0be5 | 850 | return CMD_SUCCESS; |
718e3744 | 851 | } |
852 | ||
ac4d0be5 | 853 | int ospf_redistribute_default_unset(struct ospf *ospf) |
718e3744 | 854 | { |
ac4d0be5 | 855 | if (!ospf_is_type_redistributed(DEFAULT_ROUTE, 0)) |
856 | return CMD_SUCCESS; | |
718e3744 | 857 | |
ac4d0be5 | 858 | ospf->default_originate = DEFAULT_ORIGINATE_NONE; |
859 | ospf_redist_del(ospf, DEFAULT_ROUTE, 0); | |
718e3744 | 860 | |
ac4d0be5 | 861 | zclient_redistribute_default(ZEBRA_REDISTRIBUTE_DEFAULT_DELETE, zclient, |
862 | VRF_DEFAULT); | |
718e3744 | 863 | |
ac4d0be5 | 864 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
865 | zlog_debug("Redistribute[DEFAULT]: Stop"); | |
cf795c5d | 866 | |
ac4d0be5 | 867 | // Pending: how does the external_info cleanup work in this case? |
7c8ff89e | 868 | |
ac4d0be5 | 869 | ospf_asbr_status_update(ospf, --ospf->redistribute); |
718e3744 | 870 | |
ac4d0be5 | 871 | return CMD_SUCCESS; |
718e3744 | 872 | } |
873 | ||
ac4d0be5 | 874 | static int ospf_external_lsa_originate_check(struct ospf *ospf, |
875 | struct external_info *ei) | |
718e3744 | 876 | { |
ac4d0be5 | 877 | /* If prefix is multicast, then do not originate LSA. */ |
878 | if (IN_MULTICAST(htonl(ei->p.prefix.s_addr))) { | |
879 | zlog_info( | |
880 | "LSA[Type5:%s]: Not originate AS-external-LSA, " | |
881 | "Prefix belongs multicast", | |
882 | inet_ntoa(ei->p.prefix)); | |
883 | return 0; | |
884 | } | |
885 | ||
886 | /* Take care of default-originate. */ | |
887 | if (is_prefix_default(&ei->p)) | |
888 | if (ospf->default_originate == DEFAULT_ORIGINATE_NONE) { | |
889 | zlog_info( | |
890 | "LSA[Type5:0.0.0.0]: Not originate AS-external-LSA " | |
891 | "for default"); | |
892 | return 0; | |
893 | } | |
894 | ||
895 | return 1; | |
718e3744 | 896 | } |
897 | ||
898 | /* If connected prefix is OSPF enable interface, then do not announce. */ | |
ac4d0be5 | 899 | int ospf_distribute_check_connected(struct ospf *ospf, struct external_info *ei) |
718e3744 | 900 | { |
ac4d0be5 | 901 | struct listnode *node; |
902 | struct ospf_interface *oi; | |
718e3744 | 903 | |
718e3744 | 904 | |
ac4d0be5 | 905 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) |
906 | if (prefix_match(oi->address, (struct prefix *)&ei->p)) | |
907 | return 0; | |
908 | return 1; | |
718e3744 | 909 | } |
910 | ||
911 | /* return 1 if external LSA must be originated, 0 otherwise */ | |
ac4d0be5 | 912 | int ospf_redistribute_check(struct ospf *ospf, struct external_info *ei, |
913 | int *changed) | |
718e3744 | 914 | { |
ac4d0be5 | 915 | struct route_map_set_values save_values; |
916 | struct prefix_ipv4 *p = &ei->p; | |
917 | struct ospf_redist *red; | |
918 | u_char type = is_prefix_default(&ei->p) ? DEFAULT_ROUTE : ei->type; | |
919 | u_short instance = is_prefix_default(&ei->p) ? 0 : ei->instance; | |
920 | ||
921 | if (changed) | |
922 | *changed = 0; | |
923 | ||
924 | if (!ospf_external_lsa_originate_check(ospf, ei)) | |
925 | return 0; | |
926 | ||
927 | /* Take care connected route. */ | |
928 | if (type == ZEBRA_ROUTE_CONNECT | |
929 | && !ospf_distribute_check_connected(ospf, ei)) | |
930 | return 0; | |
931 | ||
932 | if (!DEFAULT_ROUTE_TYPE(type) && DISTRIBUTE_NAME(ospf, type)) | |
933 | /* distirbute-list exists, but access-list may not? */ | |
934 | if (DISTRIBUTE_LIST(ospf, type)) | |
935 | if (access_list_apply(DISTRIBUTE_LIST(ospf, type), p) | |
936 | == FILTER_DENY) { | |
937 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) | |
938 | zlog_debug( | |
939 | "Redistribute[%s]: %s/%d filtered by ditribute-list.", | |
940 | ospf_redist_string(type), | |
941 | inet_ntoa(p->prefix), | |
942 | p->prefixlen); | |
943 | return 0; | |
944 | } | |
945 | ||
946 | save_values = ei->route_map_set; | |
947 | ospf_reset_route_map_set_values(&ei->route_map_set); | |
948 | ||
949 | /* apply route-map if needed */ | |
950 | red = ospf_redist_lookup(ospf, type, instance); | |
951 | if (red && ROUTEMAP_NAME(red)) { | |
952 | int ret; | |
953 | ||
954 | ret = route_map_apply(ROUTEMAP(red), (struct prefix *)p, | |
955 | RMAP_OSPF, ei); | |
956 | ||
957 | if (ret == RMAP_DENYMATCH) { | |
958 | ei->route_map_set = save_values; | |
959 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) | |
960 | zlog_debug( | |
961 | "Redistribute[%s]: %s/%d filtered by route-map.", | |
962 | ospf_redist_string(type), | |
963 | inet_ntoa(p->prefix), p->prefixlen); | |
964 | return 0; | |
965 | } | |
966 | ||
967 | /* check if 'route-map set' changed something */ | |
968 | if (changed) | |
969 | *changed = !ospf_route_map_set_compare( | |
970 | &ei->route_map_set, &save_values); | |
971 | } | |
972 | ||
973 | return 1; | |
718e3744 | 974 | } |
975 | ||
976 | /* OSPF route-map set for redistribution */ | |
ac4d0be5 | 977 | void ospf_routemap_set(struct ospf_redist *red, const char *name) |
718e3744 | 978 | { |
ac4d0be5 | 979 | if (ROUTEMAP_NAME(red)) |
980 | free(ROUTEMAP_NAME(red)); | |
718e3744 | 981 | |
ac4d0be5 | 982 | ROUTEMAP_NAME(red) = strdup(name); |
983 | ROUTEMAP(red) = route_map_lookup_by_name(name); | |
718e3744 | 984 | } |
985 | ||
ac4d0be5 | 986 | void ospf_routemap_unset(struct ospf_redist *red) |
718e3744 | 987 | { |
ac4d0be5 | 988 | if (ROUTEMAP_NAME(red)) |
989 | free(ROUTEMAP_NAME(red)); | |
718e3744 | 990 | |
ac4d0be5 | 991 | ROUTEMAP_NAME(red) = NULL; |
992 | ROUTEMAP(red) = NULL; | |
718e3744 | 993 | } |
994 | ||
995 | /* Zebra route add and delete treatment. */ | |
ac4d0be5 | 996 | static int ospf_zebra_read_ipv4(int command, struct zclient *zclient, |
997 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 998 | { |
ac4d0be5 | 999 | struct stream *s; |
1000 | struct zapi_ipv4 api; | |
1001 | unsigned long ifindex; | |
1002 | struct in_addr nexthop; | |
1003 | struct prefix_ipv4 p; | |
1004 | struct external_info *ei; | |
1005 | struct ospf *ospf; | |
1006 | int i; | |
1007 | ||
1008 | s = zclient->ibuf; | |
1009 | ifindex = 0; | |
1010 | nexthop.s_addr = 0; | |
1011 | ||
1012 | /* Type, flags, message. */ | |
1013 | api.type = stream_getc(s); | |
1014 | api.instance = stream_getw(s); | |
1015 | api.flags = stream_getl(s); | |
1016 | api.message = stream_getc(s); | |
1017 | ||
1018 | /* IPv4 prefix. */ | |
1019 | memset(&p, 0, sizeof(struct prefix_ipv4)); | |
1020 | p.family = AF_INET; | |
1021 | p.prefixlen = MIN(IPV4_MAX_PREFIXLEN, stream_getc(s)); | |
1022 | stream_get(&p.prefix, s, PSIZE(p.prefixlen)); | |
1023 | ||
1024 | if (IPV4_NET127(ntohl(p.prefix.s_addr))) | |
1025 | return 0; | |
1026 | ||
1027 | /* Nexthop, ifindex, distance, metric. */ | |
1028 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP)) { | |
1029 | api.nexthop_num = stream_getc(s); | |
1030 | nexthop.s_addr = stream_get_ipv4(s); | |
1031 | } | |
1032 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_IFINDEX)) { | |
1033 | api.ifindex_num = stream_getc(s); | |
1034 | /* XXX assert(api.ifindex_num == 1); */ | |
1035 | ifindex = stream_getl(s); | |
1036 | } | |
1037 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_DISTANCE)) | |
1038 | api.distance = stream_getc(s); | |
1039 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_METRIC)) | |
1040 | api.metric = stream_getl(s); | |
1041 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_TAG)) | |
1042 | api.tag = stream_getl(s); | |
1043 | else | |
1044 | api.tag = 0; | |
1045 | ||
1046 | ospf = ospf_lookup(); | |
1047 | if (ospf == NULL) | |
1048 | return 0; | |
1049 | ||
1050 | if (command == ZEBRA_REDISTRIBUTE_IPV4_ADD) { | |
1051 | /* XXX|HACK|TODO|FIXME: | |
1052 | * Maybe we should ignore reject/blackhole routes? Testing shows | |
1053 | * that | |
1054 | * there is no problems though and this is only way to | |
1055 | * "summarize" | |
1056 | * routes in ASBR at the moment. Maybe we need just a better | |
1057 | * generalised | |
1058 | * solution for these types? | |
1059 | * | |
1060 | * if ( CHECK_FLAG (api.flags, ZEBRA_FLAG_BLACKHOLE) | |
1061 | * || CHECK_FLAG (api.flags, ZEBRA_FLAG_REJECT)) | |
1062 | * return 0; | |
1063 | */ | |
1064 | ||
1065 | /* Protocol tag overwrites all other tag value send by zebra */ | |
1066 | if (ospf->dtag[api.type] > 0) | |
1067 | api.tag = ospf->dtag[api.type]; | |
1068 | ||
1069 | /* | |
1070 | * Given zebra sends update for a prefix via ADD message, it | |
1071 | * should | |
1072 | * be considered as an implicit DEL for that prefix with other | |
1073 | * source | |
1074 | * types. | |
1075 | */ | |
1076 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
1077 | if (i != api.type) | |
1078 | ospf_external_info_delete(i, api.instance, p); | |
1079 | ||
1080 | ei = ospf_external_info_add(api.type, api.instance, p, ifindex, | |
1081 | nexthop, api.tag); | |
1082 | if (ei == NULL) { | |
1083 | /* Nothing has changed, so nothing to do; return */ | |
1084 | return 0; | |
1085 | } | |
1086 | if (ospf->router_id.s_addr == 0) | |
1087 | /* Set flags to generate AS-external-LSA originate event | |
1088 | for each redistributed protocols later. */ | |
1089 | ospf->external_origin |= (1 << api.type); | |
1090 | else { | |
1091 | if (ei) { | |
1092 | if (is_prefix_default(&p)) | |
1093 | ospf_external_lsa_refresh_default(ospf); | |
1094 | else { | |
1095 | struct ospf_lsa *current; | |
1096 | ||
1097 | current = ospf_external_info_find_lsa( | |
1098 | ospf, &ei->p); | |
1099 | if (!current) | |
1100 | ospf_external_lsa_originate( | |
1101 | ospf, ei); | |
1102 | else { | |
1103 | if (IS_DEBUG_OSPF( | |
1104 | zebra, | |
1105 | ZEBRA_REDISTRIBUTE)) | |
1106 | zlog_debug( | |
1107 | "ospf_zebra_read_ipv4() : %s refreshing LSA", | |
1108 | inet_ntoa( | |
1109 | p.prefix)); | |
1110 | ospf_external_lsa_refresh( | |
1111 | ospf, current, ei, | |
1112 | LSA_REFRESH_FORCE); | |
1113 | } | |
1114 | } | |
1115 | } | |
1116 | } | |
1117 | } else /* if (command == ZEBRA_REDISTRIBUTE_IPV4_DEL) */ | |
5048fe14 | 1118 | { |
ac4d0be5 | 1119 | ospf_external_info_delete(api.type, api.instance, p); |
1120 | if (is_prefix_default(&p)) | |
1121 | ospf_external_lsa_refresh_default(ospf); | |
1122 | else | |
1123 | ospf_external_lsa_flush(ospf, api.type, &p, | |
1124 | ifindex /*, nexthop */); | |
5048fe14 | 1125 | } |
ac4d0be5 | 1126 | |
1127 | return 0; | |
718e3744 | 1128 | } |
6b0655a2 | 1129 | |
cf795c5d | 1130 | |
ac4d0be5 | 1131 | int ospf_distribute_list_out_set(struct ospf *ospf, int type, const char *name) |
718e3744 | 1132 | { |
ac4d0be5 | 1133 | /* Lookup access-list for distribute-list. */ |
1134 | DISTRIBUTE_LIST(ospf, type) = access_list_lookup(AFI_IP, name); | |
718e3744 | 1135 | |
ac4d0be5 | 1136 | /* Clear previous distribute-name. */ |
1137 | if (DISTRIBUTE_NAME(ospf, type)) | |
1138 | free(DISTRIBUTE_NAME(ospf, type)); | |
718e3744 | 1139 | |
ac4d0be5 | 1140 | /* Set distribute-name. */ |
1141 | DISTRIBUTE_NAME(ospf, type) = strdup(name); | |
718e3744 | 1142 | |
ac4d0be5 | 1143 | /* If access-list have been set, schedule update timer. */ |
1144 | if (DISTRIBUTE_LIST(ospf, type)) | |
1145 | ospf_distribute_list_update(ospf, type, 0); | |
718e3744 | 1146 | |
ac4d0be5 | 1147 | return CMD_SUCCESS; |
718e3744 | 1148 | } |
1149 | ||
ac4d0be5 | 1150 | int ospf_distribute_list_out_unset(struct ospf *ospf, int type, |
1151 | const char *name) | |
718e3744 | 1152 | { |
ac4d0be5 | 1153 | /* Schedule update timer. */ |
1154 | if (DISTRIBUTE_LIST(ospf, type)) | |
1155 | ospf_distribute_list_update(ospf, type, 0); | |
718e3744 | 1156 | |
ac4d0be5 | 1157 | /* Unset distribute-list. */ |
1158 | DISTRIBUTE_LIST(ospf, type) = NULL; | |
718e3744 | 1159 | |
ac4d0be5 | 1160 | /* Clear distribute-name. */ |
1161 | if (DISTRIBUTE_NAME(ospf, type)) | |
1162 | free(DISTRIBUTE_NAME(ospf, type)); | |
cf795c5d | 1163 | |
ac4d0be5 | 1164 | DISTRIBUTE_NAME(ospf, type) = NULL; |
718e3744 | 1165 | |
ac4d0be5 | 1166 | return CMD_SUCCESS; |
718e3744 | 1167 | } |
1168 | ||
1169 | /* distribute-list update timer. */ | |
ac4d0be5 | 1170 | static int ospf_distribute_list_update_timer(struct thread *thread) |
718e3744 | 1171 | { |
ac4d0be5 | 1172 | struct route_node *rn; |
1173 | struct external_info *ei; | |
1174 | struct route_table *rt; | |
1175 | struct ospf_lsa *lsa; | |
1176 | int type, default_refresh = 0; | |
1177 | struct ospf *ospf; | |
1178 | ||
1179 | ospf = ospf_lookup(); | |
1180 | if (ospf == NULL) | |
1181 | return 0; | |
1182 | ||
1183 | ospf->t_distribute_update = NULL; | |
1184 | ||
1185 | zlog_info("Zebra[Redistribute]: distribute-list update timer fired!"); | |
1186 | ||
1187 | /* foreach all external info. */ | |
1188 | for (type = 0; type <= ZEBRA_ROUTE_MAX; type++) { | |
1189 | struct list *ext_list; | |
1190 | struct listnode *node; | |
1191 | struct ospf_external *ext; | |
1192 | ||
1193 | ext_list = om->external[type]; | |
1194 | if (!ext_list) | |
1195 | continue; | |
1196 | ||
1197 | for (ALL_LIST_ELEMENTS_RO(ext_list, node, ext)) { | |
1198 | rt = ext->external_info; | |
1199 | if (!rt) | |
1200 | continue; | |
1201 | for (rn = route_top(rt); rn; rn = route_next(rn)) | |
1202 | if ((ei = rn->info) != NULL) { | |
1203 | if (is_prefix_default(&ei->p)) | |
1204 | default_refresh = 1; | |
1205 | else if ( | |
1206 | (lsa = ospf_external_info_find_lsa( | |
1207 | ospf, &ei->p))) | |
1208 | ospf_external_lsa_refresh( | |
1209 | ospf, lsa, ei, | |
1210 | LSA_REFRESH_IF_CHANGED); | |
1211 | else | |
1212 | ospf_external_lsa_originate( | |
1213 | ospf, ei); | |
1214 | } | |
1215 | } | |
1216 | } | |
1217 | if (default_refresh) | |
1218 | ospf_external_lsa_refresh_default(ospf); | |
1219 | return 0; | |
718e3744 | 1220 | } |
1221 | ||
718e3744 | 1222 | /* Update distribute-list and set timer to apply access-list. */ |
ac4d0be5 | 1223 | void ospf_distribute_list_update(struct ospf *ospf, uintptr_t type, |
1224 | u_short instance) | |
718e3744 | 1225 | { |
ac4d0be5 | 1226 | struct route_table *rt; |
1227 | struct ospf_external *ext; | |
1228 | ||
1229 | /* External info does not exist. */ | |
1230 | ext = ospf_external_lookup(type, instance); | |
1231 | if (!ext || !(rt = EXTERNAL_INFO(ext))) | |
1232 | return; | |
1233 | ||
1234 | /* If exists previously invoked thread, then let it continue. */ | |
1235 | if (ospf->t_distribute_update) | |
1236 | return; | |
1237 | ||
1238 | /* Set timer. */ | |
1239 | ospf->t_distribute_update = | |
1240 | thread_add_timer_msec(master, ospf_distribute_list_update_timer, | |
1241 | (void *)type, ospf->min_ls_interval); | |
718e3744 | 1242 | } |
1243 | ||
1244 | /* If access-list is updated, apply some check. */ | |
ac4d0be5 | 1245 | static void ospf_filter_update(struct access_list *access) |
718e3744 | 1246 | { |
ac4d0be5 | 1247 | struct ospf *ospf; |
1248 | int type; | |
1249 | int abr_inv = 0; | |
1250 | struct ospf_area *area; | |
1251 | struct listnode *node; | |
1252 | ||
1253 | /* If OSPF instance does not exist, return right now. */ | |
1254 | ospf = ospf_lookup(); | |
1255 | if (ospf == NULL) | |
1256 | return; | |
1257 | ||
1258 | /* Update distribute-list, and apply filter. */ | |
1259 | for (type = 0; type <= ZEBRA_ROUTE_MAX; type++) { | |
1260 | struct list *red_list; | |
1261 | struct listnode *node; | |
1262 | struct ospf_redist *red; | |
1263 | ||
1264 | red_list = ospf->redist[type]; | |
1265 | if (red_list) | |
1266 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) { | |
1267 | if (ROUTEMAP(red)) { | |
1268 | /* if route-map is not NULL it may be | |
1269 | * using this access list */ | |
1270 | ospf_distribute_list_update( | |
1271 | ospf, type, red->instance); | |
1272 | } | |
1273 | } | |
1274 | ||
1275 | /* There is place for route-map for default-information | |
1276 | * (ZEBRA_ROUTE_MAX), | |
1277 | * but no distribute list. */ | |
1278 | if (type == ZEBRA_ROUTE_MAX) | |
1279 | break; | |
1280 | ||
1281 | if (DISTRIBUTE_NAME(ospf, type)) { | |
1282 | /* Keep old access-list for distribute-list. */ | |
1283 | struct access_list *old = DISTRIBUTE_LIST(ospf, type); | |
1284 | ||
1285 | /* Update access-list for distribute-list. */ | |
1286 | DISTRIBUTE_LIST(ospf, type) = access_list_lookup( | |
1287 | AFI_IP, DISTRIBUTE_NAME(ospf, type)); | |
1288 | ||
1289 | /* No update for this distribute type. */ | |
1290 | if (old == NULL && DISTRIBUTE_LIST(ospf, type) == NULL) | |
1291 | continue; | |
1292 | ||
1293 | /* Schedule distribute-list update timer. */ | |
1294 | if (DISTRIBUTE_LIST(ospf, type) == NULL | |
1295 | || strcmp(DISTRIBUTE_NAME(ospf, type), access->name) | |
1296 | == 0) | |
1297 | ospf_distribute_list_update(ospf, type, 0); | |
1298 | } | |
1299 | } | |
1300 | ||
1301 | /* Update Area access-list. */ | |
1302 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, node, area)) { | |
1303 | if (EXPORT_NAME(area)) { | |
1304 | EXPORT_LIST(area) = NULL; | |
1305 | abr_inv++; | |
1306 | } | |
1307 | ||
1308 | if (IMPORT_NAME(area)) { | |
1309 | IMPORT_LIST(area) = NULL; | |
1310 | abr_inv++; | |
1311 | } | |
1312 | } | |
1313 | ||
1314 | /* Schedule ABR tasks -- this will be changed -- takada. */ | |
1315 | if (IS_OSPF_ABR(ospf) && abr_inv) | |
1316 | ospf_schedule_abr_task(ospf); | |
718e3744 | 1317 | } |
dd669bb0 | 1318 | |
1319 | /* If prefix-list is updated, do some updates. */ | |
ac4d0be5 | 1320 | void ospf_prefix_list_update(struct prefix_list *plist) |
dd669bb0 | 1321 | { |
ac4d0be5 | 1322 | struct ospf *ospf; |
1323 | int type; | |
1324 | int abr_inv = 0; | |
1325 | struct ospf_area *area; | |
1326 | struct listnode *node; | |
1327 | ||
1328 | /* If OSPF instatnce does not exist, return right now. */ | |
1329 | ospf = ospf_lookup(); | |
1330 | if (ospf == NULL) | |
1331 | return; | |
1332 | ||
1333 | /* Update all route-maps which are used as redistribution filters. | |
1334 | * They might use prefix-list. | |
1335 | */ | |
1336 | for (type = 0; type <= ZEBRA_ROUTE_MAX; type++) { | |
1337 | struct list *red_list; | |
1338 | struct listnode *node; | |
1339 | struct ospf_redist *red; | |
1340 | ||
1341 | red_list = ospf->redist[type]; | |
1342 | if (red_list) | |
1343 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) { | |
1344 | if (ROUTEMAP(red)) { | |
1345 | /* if route-map is not NULL it may be | |
1346 | * using this prefix list */ | |
1347 | ospf_distribute_list_update( | |
1348 | ospf, type, red->instance); | |
1349 | } | |
1350 | } | |
1351 | } | |
1352 | ||
1353 | /* Update area filter-lists. */ | |
1354 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, node, area)) { | |
1355 | /* Update filter-list in. */ | |
1356 | if (PREFIX_NAME_IN(area)) | |
1357 | if (strcmp(PREFIX_NAME_IN(area), | |
1358 | prefix_list_name(plist)) | |
1359 | == 0) { | |
1360 | PREFIX_LIST_IN(area) = prefix_list_lookup( | |
1361 | AFI_IP, PREFIX_NAME_IN(area)); | |
1362 | abr_inv++; | |
1363 | } | |
1364 | ||
1365 | /* Update filter-list out. */ | |
1366 | if (PREFIX_NAME_OUT(area)) | |
1367 | if (strcmp(PREFIX_NAME_OUT(area), | |
1368 | prefix_list_name(plist)) | |
1369 | == 0) { | |
1370 | PREFIX_LIST_IN(area) = prefix_list_lookup( | |
1371 | AFI_IP, PREFIX_NAME_OUT(area)); | |
1372 | abr_inv++; | |
1373 | } | |
1374 | } | |
1375 | ||
1376 | /* Schedule ABR task. */ | |
1377 | if (IS_OSPF_ABR(ospf) && abr_inv) | |
1378 | ospf_schedule_abr_task(ospf); | |
dd669bb0 | 1379 | } |
cf795c5d | 1380 | |
ac4d0be5 | 1381 | static struct ospf_distance *ospf_distance_new(void) |
718e3744 | 1382 | { |
ac4d0be5 | 1383 | return XCALLOC(MTYPE_OSPF_DISTANCE, sizeof(struct ospf_distance)); |
718e3744 | 1384 | } |
1385 | ||
ac4d0be5 | 1386 | static void ospf_distance_free(struct ospf_distance *odistance) |
718e3744 | 1387 | { |
ac4d0be5 | 1388 | XFREE(MTYPE_OSPF_DISTANCE, odistance); |
718e3744 | 1389 | } |
1390 | ||
ac4d0be5 | 1391 | int ospf_distance_set(struct vty *vty, struct ospf *ospf, |
1392 | const char *distance_str, const char *ip_str, | |
1393 | const char *access_list_str) | |
718e3744 | 1394 | { |
ac4d0be5 | 1395 | int ret; |
1396 | struct prefix_ipv4 p; | |
1397 | u_char distance; | |
1398 | struct route_node *rn; | |
1399 | struct ospf_distance *odistance; | |
1400 | ||
1401 | ret = str2prefix_ipv4(ip_str, &p); | |
1402 | if (ret == 0) { | |
1403 | vty_out(vty, "Malformed prefix%s", VTY_NEWLINE); | |
1404 | return CMD_WARNING; | |
1405 | } | |
1406 | ||
1407 | distance = atoi(distance_str); | |
1408 | ||
1409 | /* Get OSPF distance node. */ | |
1410 | rn = route_node_get(ospf->distance_table, (struct prefix *)&p); | |
1411 | if (rn->info) { | |
1412 | odistance = rn->info; | |
1413 | route_unlock_node(rn); | |
1414 | } else { | |
1415 | odistance = ospf_distance_new(); | |
1416 | rn->info = odistance; | |
1417 | } | |
1418 | ||
1419 | /* Set distance value. */ | |
1420 | odistance->distance = distance; | |
1421 | ||
1422 | /* Reset access-list configuration. */ | |
1423 | if (odistance->access_list) { | |
1424 | free(odistance->access_list); | |
1425 | odistance->access_list = NULL; | |
1426 | } | |
1427 | if (access_list_str) | |
1428 | odistance->access_list = strdup(access_list_str); | |
1429 | ||
1430 | return CMD_SUCCESS; | |
718e3744 | 1431 | } |
1432 | ||
ac4d0be5 | 1433 | int ospf_distance_unset(struct vty *vty, struct ospf *ospf, |
1434 | const char *distance_str, const char *ip_str, | |
1435 | char const *access_list_str) | |
718e3744 | 1436 | { |
ac4d0be5 | 1437 | int ret; |
1438 | struct prefix_ipv4 p; | |
1439 | struct route_node *rn; | |
1440 | struct ospf_distance *odistance; | |
1441 | ||
1442 | ret = str2prefix_ipv4(ip_str, &p); | |
1443 | if (ret == 0) { | |
1444 | vty_out(vty, "Malformed prefix%s", VTY_NEWLINE); | |
1445 | return CMD_WARNING; | |
1446 | } | |
1447 | ||
1448 | rn = route_node_lookup(ospf->distance_table, (struct prefix *)&p); | |
1449 | if (!rn) { | |
1450 | vty_out(vty, "Can't find specified prefix%s", VTY_NEWLINE); | |
1451 | return CMD_WARNING; | |
1452 | } | |
1453 | ||
1454 | odistance = rn->info; | |
1455 | ||
1456 | if (odistance->access_list) | |
1457 | free(odistance->access_list); | |
1458 | ospf_distance_free(odistance); | |
1459 | ||
1460 | rn->info = NULL; | |
1461 | route_unlock_node(rn); | |
1462 | route_unlock_node(rn); | |
1463 | ||
1464 | return CMD_SUCCESS; | |
718e3744 | 1465 | } |
1466 | ||
ac4d0be5 | 1467 | void ospf_distance_reset(struct ospf *ospf) |
718e3744 | 1468 | { |
ac4d0be5 | 1469 | struct route_node *rn; |
1470 | struct ospf_distance *odistance; | |
1471 | ||
1472 | for (rn = route_top(ospf->distance_table); rn; rn = route_next(rn)) | |
1473 | if ((odistance = rn->info) != NULL) { | |
1474 | if (odistance->access_list) | |
1475 | free(odistance->access_list); | |
1476 | ospf_distance_free(odistance); | |
1477 | rn->info = NULL; | |
1478 | route_unlock_node(rn); | |
1479 | } | |
718e3744 | 1480 | } |
1481 | ||
ac4d0be5 | 1482 | u_char ospf_distance_apply(struct prefix_ipv4 *p, struct ospf_route * or) |
718e3744 | 1483 | { |
ac4d0be5 | 1484 | struct ospf *ospf; |
718e3744 | 1485 | |
ac4d0be5 | 1486 | ospf = ospf_lookup(); |
1487 | if (ospf == NULL) | |
1488 | return 0; | |
718e3744 | 1489 | |
ac4d0be5 | 1490 | if (ospf->distance_intra) |
1491 | if (or->path_type == OSPF_PATH_INTRA_AREA) | |
1492 | return ospf->distance_intra; | |
718e3744 | 1493 | |
ac4d0be5 | 1494 | if (ospf->distance_inter) |
1495 | if (or->path_type == OSPF_PATH_INTER_AREA) | |
1496 | return ospf->distance_inter; | |
718e3744 | 1497 | |
ac4d0be5 | 1498 | if (ospf->distance_external) |
1499 | if (or->path_type == OSPF_PATH_TYPE1_EXTERNAL || | |
1500 | or->path_type == OSPF_PATH_TYPE2_EXTERNAL) | |
1501 | return ospf->distance_external; | |
cf795c5d | 1502 | |
ac4d0be5 | 1503 | if (ospf->distance_all) |
1504 | return ospf->distance_all; | |
718e3744 | 1505 | |
ac4d0be5 | 1506 | return 0; |
718e3744 | 1507 | } |
1508 | ||
ac4d0be5 | 1509 | static void ospf_zebra_connected(struct zclient *zclient) |
7076bb2f | 1510 | { |
ac4d0be5 | 1511 | /* Send the client registration */ |
1512 | bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER); | |
2376c3f2 | 1513 | |
ac4d0be5 | 1514 | zclient_send_reg_requests(zclient, VRF_DEFAULT); |
7076bb2f FL |
1515 | } |
1516 | ||
ac4d0be5 | 1517 | void ospf_zebra_init(struct thread_master *master, u_short instance) |
718e3744 | 1518 | { |
ac4d0be5 | 1519 | /* Allocate zebra structure. */ |
1520 | zclient = zclient_new(master); | |
1521 | zclient_init(zclient, ZEBRA_ROUTE_OSPF, instance); | |
1522 | zclient->zebra_connected = ospf_zebra_connected; | |
1523 | zclient->router_id_update = ospf_router_id_update_zebra; | |
1524 | zclient->interface_add = ospf_interface_add; | |
1525 | zclient->interface_delete = ospf_interface_delete; | |
1526 | zclient->interface_up = ospf_interface_state_up; | |
1527 | zclient->interface_down = ospf_interface_state_down; | |
1528 | zclient->interface_address_add = ospf_interface_address_add; | |
1529 | zclient->interface_address_delete = ospf_interface_address_delete; | |
1530 | zclient->interface_link_params = ospf_interface_link_params; | |
1531 | ||
1532 | zclient->redistribute_route_ipv4_add = ospf_zebra_read_ipv4; | |
1533 | zclient->redistribute_route_ipv4_del = ospf_zebra_read_ipv4; | |
1534 | ||
1535 | access_list_add_hook(ospf_filter_update); | |
1536 | access_list_delete_hook(ospf_filter_update); | |
1537 | prefix_list_add_hook(ospf_prefix_list_update); | |
1538 | prefix_list_delete_hook(ospf_prefix_list_update); | |
718e3744 | 1539 | } |