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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 | * | |
896014f4 DL |
17 | * You should have received a copy of the GNU General Public License along |
18 | * with this program; see the file COPYING; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
718e3744 | 20 | */ |
21 | ||
22 | #include <zebra.h> | |
23 | ||
24 | #include "thread.h" | |
25 | #include "command.h" | |
26 | #include "network.h" | |
27 | #include "prefix.h" | |
28 | #include "routemap.h" | |
29 | #include "table.h" | |
30 | #include "stream.h" | |
31 | #include "memory.h" | |
32 | #include "zclient.h" | |
33 | #include "filter.h" | |
dd669bb0 | 34 | #include "plist.h" |
718e3744 | 35 | #include "log.h" |
2376c3f2 | 36 | #include "lib/bfd.h" |
5b30316e | 37 | #include "nexthop.h" |
718e3744 | 38 | |
39 | #include "ospfd/ospfd.h" | |
40 | #include "ospfd/ospf_interface.h" | |
41 | #include "ospfd/ospf_ism.h" | |
42 | #include "ospfd/ospf_asbr.h" | |
43 | #include "ospfd/ospf_asbr.h" | |
44 | #include "ospfd/ospf_abr.h" | |
45 | #include "ospfd/ospf_lsa.h" | |
46 | #include "ospfd/ospf_dump.h" | |
47 | #include "ospfd/ospf_route.h" | |
d5a5c8f0 DS |
48 | #include "ospfd/ospf_lsdb.h" |
49 | #include "ospfd/ospf_neighbor.h" | |
50 | #include "ospfd/ospf_nsm.h" | |
718e3744 | 51 | #include "ospfd/ospf_zebra.h" |
16f1b9ee | 52 | #include "ospfd/ospf_te.h" |
43e7abb5 | 53 | #include "ospfd/ospf_sr.h" |
132a782e | 54 | #include "ospfd/ospf_ldp_sync.h" |
718e3744 | 55 | |
bf8d3d6a DL |
56 | DEFINE_MTYPE_STATIC(OSPFD, OSPF_EXTERNAL, "OSPF External route table"); |
57 | DEFINE_MTYPE_STATIC(OSPFD, OSPF_REDISTRIBUTE, "OSPF Redistriute"); | |
58 | DEFINE_MTYPE_STATIC(OSPFD, OSPF_DIST_ARGS, "OSPF Distribute arguments"); | |
dfac5d39 | 59 | |
1febb13d | 60 | |
718e3744 | 61 | /* Zebra structure to hold current status. */ |
62 | struct zclient *zclient = NULL; | |
d81b8e0e OD |
63 | /* and for the Synchronous connection to the Label Manager */ |
64 | static struct zclient *zclient_sync; | |
718e3744 | 65 | |
66 | /* For registering threads. */ | |
67 | extern struct thread_master *master; | |
18a6dce6 | 68 | |
69 | /* Router-id update message from zebra. */ | |
121f9dee | 70 | static int ospf_router_id_update_zebra(ZAPI_CALLBACK_ARGS) |
18a6dce6 | 71 | { |
b5a8894d | 72 | struct ospf *ospf = NULL; |
d62a17ae | 73 | struct prefix router_id; |
74 | zebra_router_id_update_read(zclient->ibuf, &router_id); | |
75 | ||
2dbe669b DA |
76 | if (IS_DEBUG_OSPF(zebra, ZEBRA_INTERFACE)) |
77 | zlog_debug("Zebra rcvd: router id update %pFX vrf %s id %u", | |
78 | &router_id, ospf_vrf_id_to_name(vrf_id), vrf_id); | |
d62a17ae | 79 | |
b5a8894d | 80 | ospf = ospf_lookup_by_vrf_id(vrf_id); |
d62a17ae | 81 | |
6021c6c0 CS |
82 | if (ospf != NULL) { |
83 | ospf->router_id_zebra = router_id.u.prefix4; | |
d62a17ae | 84 | ospf_router_id_update(ospf); |
6021c6c0 | 85 | } else { |
2dbe669b | 86 | if (IS_DEBUG_OSPF_EVENT) |
996c9314 | 87 | zlog_debug( |
2dbe669b | 88 | "%s: ospf instance not found for vrf %s id %u router_id %pFX", |
15569c58 | 89 | __func__, ospf_vrf_id_to_name(vrf_id), vrf_id, |
2dbe669b | 90 | &router_id); |
b5a8894d | 91 | } |
d62a17ae | 92 | return 0; |
18a6dce6 | 93 | } |
718e3744 | 94 | |
121f9dee | 95 | static int ospf_interface_address_add(ZAPI_CALLBACK_ARGS) |
718e3744 | 96 | { |
d62a17ae | 97 | struct connected *c; |
b5a8894d CS |
98 | struct ospf *ospf = NULL; |
99 | ||
718e3744 | 100 | |
121f9dee | 101 | c = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
718e3744 | 102 | |
d62a17ae | 103 | if (c == NULL) |
104 | return 0; | |
718e3744 | 105 | |
2dbe669b DA |
106 | if (IS_DEBUG_OSPF(zebra, ZEBRA_INTERFACE)) |
107 | zlog_debug("Zebra: interface %s address add %pFX vrf %s id %u", | |
108 | c->ifp->name, c->address, | |
109 | ospf_vrf_id_to_name(vrf_id), vrf_id); | |
7f643ebf | 110 | |
b5a8894d | 111 | ospf = ospf_lookup_by_vrf_id(vrf_id); |
43b8d1d8 CS |
112 | if (!ospf) |
113 | return 0; | |
b5a8894d CS |
114 | |
115 | ospf_if_update(ospf, c->ifp); | |
718e3744 | 116 | |
ef7bd2a3 | 117 | ospf_if_interface(c->ifp); |
718e3744 | 118 | |
d62a17ae | 119 | return 0; |
718e3744 | 120 | } |
121 | ||
121f9dee | 122 | static int ospf_interface_address_delete(ZAPI_CALLBACK_ARGS) |
718e3744 | 123 | { |
d62a17ae | 124 | struct connected *c; |
125 | struct interface *ifp; | |
126 | struct ospf_interface *oi; | |
127 | struct route_node *rn; | |
128 | struct prefix p; | |
129 | ||
121f9dee | 130 | c = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
d62a17ae | 131 | |
132 | if (c == NULL) | |
133 | return 0; | |
134 | ||
2dbe669b DA |
135 | if (IS_DEBUG_OSPF(zebra, ZEBRA_INTERFACE)) |
136 | zlog_debug("Zebra: interface %s address delete %pFX", | |
137 | c->ifp->name, c->address); | |
7f643ebf | 138 | |
d62a17ae | 139 | ifp = c->ifp; |
140 | p = *c->address; | |
936fbaef | 141 | p.prefixlen = IPV4_MAX_BITLEN; |
718e3744 | 142 | |
d62a17ae | 143 | rn = route_node_lookup(IF_OIFS(ifp), &p); |
144 | if (!rn) { | |
721c0857 | 145 | connected_free(&c); |
d62a17ae | 146 | return 0; |
147 | } | |
718e3744 | 148 | |
d62a17ae | 149 | assert(rn->info); |
150 | oi = rn->info; | |
151 | route_unlock_node(rn); | |
cf795c5d | 152 | |
d62a17ae | 153 | /* Call interface hook functions to clean up */ |
154 | ospf_if_free(oi); | |
cf795c5d | 155 | |
ef7bd2a3 | 156 | ospf_if_interface(c->ifp); |
718e3744 | 157 | |
721c0857 | 158 | connected_free(&c); |
718e3744 | 159 | |
d62a17ae | 160 | return 0; |
718e3744 | 161 | } |
72357f2b | 162 | |
121f9dee | 163 | static int ospf_interface_link_params(ZAPI_CALLBACK_ARGS) |
16f1b9ee | 164 | { |
d62a17ae | 165 | struct interface *ifp; |
0b4124c1 | 166 | bool changed = false; |
16f1b9ee | 167 | |
0b4124c1 | 168 | ifp = zebra_interface_link_params_read(zclient->ibuf, vrf_id, &changed); |
16f1b9ee | 169 | |
0b4124c1 | 170 | if (ifp == NULL || !changed) |
d62a17ae | 171 | return 0; |
16f1b9ee | 172 | |
d62a17ae | 173 | /* Update TE TLV */ |
174 | ospf_mpls_te_update_if(ifp); | |
16f1b9ee | 175 | |
d62a17ae | 176 | return 0; |
16f1b9ee OD |
177 | } |
178 | ||
b5a8894d | 179 | /* VRF update for an interface. */ |
121f9dee | 180 | static int ospf_interface_vrf_update(ZAPI_CALLBACK_ARGS) |
b5a8894d CS |
181 | { |
182 | struct interface *ifp = NULL; | |
183 | vrf_id_t new_vrf_id; | |
16f1b9ee | 184 | |
b5a8894d | 185 | ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id, |
996c9314 | 186 | &new_vrf_id); |
b5a8894d CS |
187 | if (!ifp) |
188 | return 0; | |
189 | ||
190 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
191 | zlog_debug( |
192 | "%s: Rx Interface %s VRF change vrf_id %u New vrf %s id %u", | |
15569c58 | 193 | __func__, ifp->name, vrf_id, |
996c9314 | 194 | ospf_vrf_id_to_name(new_vrf_id), new_vrf_id); |
b5a8894d CS |
195 | |
196 | /*if_update(ifp, ifp->name, strlen(ifp->name), new_vrf_id);*/ | |
a36898e7 | 197 | if_update_to_new_vrf(ifp, new_vrf_id); |
b5a8894d | 198 | |
996c9314 | 199 | return 0; |
b5a8894d CS |
200 | } |
201 | ||
7fd0729f G |
202 | /* Nexthop, ifindex, distance and metric information. */ |
203 | static void ospf_zebra_add_nexthop(struct ospf *ospf, struct ospf_path *path, | |
204 | struct zapi_route *api) | |
205 | { | |
206 | struct zapi_nexthop *api_nh; | |
207 | struct zapi_nexthop *api_nh_backup; | |
208 | ||
209 | /* TI-LFA backup path label stack comes first, if present */ | |
210 | if (path->srni.backup_label_stack) { | |
211 | api_nh_backup = &api->backup_nexthops[api->backup_nexthop_num]; | |
212 | api_nh_backup->vrf_id = ospf->vrf_id; | |
213 | ||
f026b24e | 214 | api_nh_backup->type = NEXTHOP_TYPE_IPV4; |
7fd0729f G |
215 | api_nh_backup->gate.ipv4 = path->srni.backup_nexthop; |
216 | ||
217 | api_nh_backup->label_num = | |
218 | path->srni.backup_label_stack->num_labels; | |
219 | memcpy(api_nh_backup->labels, | |
220 | path->srni.backup_label_stack->label, | |
221 | sizeof(mpls_label_t) * api_nh_backup->label_num); | |
222 | ||
223 | api->backup_nexthop_num++; | |
224 | } | |
225 | ||
226 | /* And here comes the primary nexthop */ | |
227 | api_nh = &api->nexthops[api->nexthop_num]; | |
228 | #ifdef HAVE_NETLINK | |
229 | if (path->unnumbered | |
230 | || (path->nexthop.s_addr != INADDR_ANY && path->ifindex != 0)) { | |
231 | #else /* HAVE_NETLINK */ | |
232 | if (path->nexthop.s_addr != INADDR_ANY && path->ifindex != 0) { | |
233 | #endif /* HAVE_NETLINK */ | |
234 | api_nh->gate.ipv4 = path->nexthop; | |
235 | api_nh->ifindex = path->ifindex; | |
236 | api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX; | |
237 | } else if (path->nexthop.s_addr != INADDR_ANY) { | |
238 | api_nh->gate.ipv4 = path->nexthop; | |
239 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
240 | } else { | |
241 | api_nh->ifindex = path->ifindex; | |
242 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
243 | } | |
244 | api_nh->vrf_id = ospf->vrf_id; | |
245 | ||
246 | /* Set TI-LFA backup nexthop info if present */ | |
247 | if (path->srni.backup_label_stack) { | |
248 | SET_FLAG(api->message, ZAPI_MESSAGE_BACKUP_NEXTHOPS); | |
249 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_HAS_BACKUP); | |
250 | ||
251 | /* Just care about a single TI-LFA backup path for now */ | |
252 | api_nh->backup_num = 1; | |
253 | api_nh->backup_idx[0] = api->backup_nexthop_num - 1; | |
254 | } | |
255 | ||
256 | api->nexthop_num++; | |
257 | } | |
258 | ||
b5a8894d | 259 | void ospf_zebra_add(struct ospf *ospf, struct prefix_ipv4 *p, |
996c9314 | 260 | struct ospf_route * or) |
718e3744 | 261 | { |
5fef910e | 262 | struct zapi_route api; |
d7c0a89a | 263 | uint8_t distance; |
d62a17ae | 264 | struct ospf_path *path; |
265 | struct listnode *node; | |
d62a17ae | 266 | |
10514170 RW |
267 | if (ospf->gr_info.restart_in_progress) { |
268 | if (IS_DEBUG_OSPF_GR) | |
269 | zlog_debug( | |
270 | "Zebra: Graceful Restart in progress -- not installing %pFX", | |
271 | p); | |
272 | return; | |
273 | } | |
274 | ||
5fef910e | 275 | memset(&api, 0, sizeof(api)); |
b5a8894d | 276 | api.vrf_id = ospf->vrf_id; |
5fef910e RW |
277 | api.type = ZEBRA_ROUTE_OSPF; |
278 | api.instance = ospf->instance; | |
279 | api.safi = SAFI_UNICAST; | |
d00061ea | 280 | |
5fef910e RW |
281 | memcpy(&api.prefix, p, sizeof(*p)); |
282 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
d00061ea | 283 | |
5fef910e RW |
284 | /* Metric value. */ |
285 | SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); | |
286 | if (or->path_type == OSPF_PATH_TYPE1_EXTERNAL) | |
287 | api.metric = or->cost + or->u.ext.type2_cost; | |
288 | else if (or->path_type == OSPF_PATH_TYPE2_EXTERNAL) | |
289 | api.metric = or->u.ext.type2_cost; | |
290 | else | |
291 | api.metric = or->cost; | |
d00061ea RW |
292 | |
293 | /* Check if path type is ASE */ | |
294 | if (((or->path_type == OSPF_PATH_TYPE1_EXTERNAL) | |
295 | || (or->path_type == OSPF_PATH_TYPE2_EXTERNAL)) | |
5fef910e RW |
296 | && (or->u.ext.tag > 0) && (or->u.ext.tag <= ROUTE_TAG_MAX)) { |
297 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); | |
298 | api.tag = or->u.ext.tag; | |
299 | } | |
d00061ea | 300 | |
5fef910e | 301 | /* Distance value. */ |
b5a8894d | 302 | distance = ospf_distance_apply(ospf, p, or); |
5fef910e RW |
303 | if (distance) { |
304 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
305 | api.distance = distance; | |
306 | } | |
d00061ea | 307 | |
d00061ea | 308 | for (ALL_LIST_ELEMENTS_RO(or->paths, node, path)) { |
3d5b9855 | 309 | if (api.nexthop_num >= ospf->max_multipath) |
a74e593b | 310 | break; |
7fd0729f G |
311 | |
312 | ospf_zebra_add_nexthop(ospf, path, &api); | |
72357f2b | 313 | |
d00061ea | 314 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) { |
96065dc3 CS |
315 | struct interface *ifp; |
316 | ||
317 | ifp = if_lookup_by_index(path->ifindex, ospf->vrf_id); | |
4259ea81 | 318 | |
d00061ea | 319 | zlog_debug( |
2dbe669b DA |
320 | "Zebra: Route add %pFX nexthop %pI4, ifindex=%d %s", |
321 | p, &path->nexthop, path->ifindex, | |
322 | ifp ? ifp->name : " "); | |
d62a17ae | 323 | } |
d00061ea | 324 | } |
d62a17ae | 325 | |
5fef910e | 326 | zclient_route_send(ZEBRA_ROUTE_ADD, zclient, &api); |
718e3744 | 327 | } |
328 | ||
b5a8894d | 329 | void ospf_zebra_delete(struct ospf *ospf, struct prefix_ipv4 *p, |
996c9314 | 330 | struct ospf_route * or) |
718e3744 | 331 | { |
5fef910e | 332 | struct zapi_route api; |
d62a17ae | 333 | |
10514170 RW |
334 | if (ospf->gr_info.restart_in_progress) { |
335 | if (IS_DEBUG_OSPF_GR) | |
336 | zlog_debug( | |
337 | "Zebra: Graceful Restart in progress -- not uninstalling %pFX", | |
338 | p); | |
339 | return; | |
340 | } | |
341 | ||
5fef910e | 342 | memset(&api, 0, sizeof(api)); |
b5a8894d | 343 | api.vrf_id = ospf->vrf_id; |
5fef910e RW |
344 | api.type = ZEBRA_ROUTE_OSPF; |
345 | api.instance = ospf->instance; | |
346 | api.safi = SAFI_UNICAST; | |
347 | memcpy(&api.prefix, p, sizeof(*p)); | |
d62a17ae | 348 | |
2dbe669b DA |
349 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
350 | zlog_debug("Zebra: Route delete %pFX", p); | |
d00061ea | 351 | |
5fef910e | 352 | zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api); |
718e3744 | 353 | } |
354 | ||
b5a8894d | 355 | void ospf_zebra_add_discard(struct ospf *ospf, struct prefix_ipv4 *p) |
718e3744 | 356 | { |
5fef910e | 357 | struct zapi_route api; |
d62a17ae | 358 | |
10514170 RW |
359 | if (ospf->gr_info.restart_in_progress) { |
360 | if (IS_DEBUG_OSPF_GR) | |
361 | zlog_debug( | |
362 | "Zebra: Graceful Restart in progress -- not installing %pFX", | |
363 | p); | |
364 | return; | |
365 | } | |
366 | ||
5fef910e | 367 | memset(&api, 0, sizeof(api)); |
b5a8894d | 368 | api.vrf_id = ospf->vrf_id; |
d00061ea RW |
369 | api.type = ZEBRA_ROUTE_OSPF; |
370 | api.instance = ospf->instance; | |
d00061ea | 371 | api.safi = SAFI_UNICAST; |
5fef910e | 372 | memcpy(&api.prefix, p, sizeof(*p)); |
09a484dd | 373 | zapi_route_set_blackhole(&api, BLACKHOLE_NULL); |
d00061ea | 374 | |
5fef910e | 375 | zclient_route_send(ZEBRA_ROUTE_ADD, zclient, &api); |
d00061ea | 376 | |
2dbe669b DA |
377 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
378 | zlog_debug("Zebra: Route add discard %pFX", p); | |
718e3744 | 379 | } |
380 | ||
b5a8894d | 381 | void ospf_zebra_delete_discard(struct ospf *ospf, struct prefix_ipv4 *p) |
718e3744 | 382 | { |
5fef910e | 383 | struct zapi_route api; |
d62a17ae | 384 | |
10514170 RW |
385 | if (ospf->gr_info.restart_in_progress) { |
386 | if (IS_DEBUG_OSPF_GR) | |
387 | zlog_debug( | |
388 | "Zebra: Graceful Restart in progress -- not uninstalling %pFX", | |
389 | p); | |
390 | return; | |
391 | } | |
392 | ||
5fef910e | 393 | memset(&api, 0, sizeof(api)); |
b5a8894d | 394 | api.vrf_id = ospf->vrf_id; |
d00061ea RW |
395 | api.type = ZEBRA_ROUTE_OSPF; |
396 | api.instance = ospf->instance; | |
d00061ea | 397 | api.safi = SAFI_UNICAST; |
5fef910e | 398 | memcpy(&api.prefix, p, sizeof(*p)); |
09a484dd | 399 | zapi_route_set_blackhole(&api, BLACKHOLE_NULL); |
d00061ea | 400 | |
5fef910e | 401 | zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api); |
d00061ea | 402 | |
2dbe669b DA |
403 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
404 | zlog_debug("Zebra: Route delete discard %pFX", p); | |
718e3744 | 405 | } |
406 | ||
d7c0a89a QY |
407 | struct ospf_external *ospf_external_lookup(struct ospf *ospf, uint8_t type, |
408 | unsigned short instance) | |
7c8ff89e | 409 | { |
d62a17ae | 410 | struct list *ext_list; |
411 | struct listnode *node; | |
412 | struct ospf_external *ext; | |
7c8ff89e | 413 | |
de1ac5fd | 414 | ext_list = ospf->external[type]; |
d62a17ae | 415 | if (!ext_list) |
416 | return (NULL); | |
7c8ff89e | 417 | |
d62a17ae | 418 | for (ALL_LIST_ELEMENTS_RO(ext_list, node, ext)) |
419 | if (ext->instance == instance) | |
420 | return ext; | |
7c8ff89e | 421 | |
d62a17ae | 422 | return NULL; |
7c8ff89e DS |
423 | } |
424 | ||
d7c0a89a QY |
425 | struct ospf_external *ospf_external_add(struct ospf *ospf, uint8_t type, |
426 | unsigned short instance) | |
7c8ff89e | 427 | { |
d62a17ae | 428 | struct list *ext_list; |
429 | struct ospf_external *ext; | |
7c8ff89e | 430 | |
de1ac5fd | 431 | ext = ospf_external_lookup(ospf, type, instance); |
d62a17ae | 432 | if (ext) |
433 | return ext; | |
7c8ff89e | 434 | |
de1ac5fd CS |
435 | if (!ospf->external[type]) |
436 | ospf->external[type] = list_new(); | |
7c8ff89e | 437 | |
de1ac5fd | 438 | ext_list = ospf->external[type]; |
9f5dc319 | 439 | ext = XCALLOC(MTYPE_OSPF_EXTERNAL, sizeof(struct ospf_external)); |
d62a17ae | 440 | ext->instance = instance; |
441 | EXTERNAL_INFO(ext) = route_table_init(); | |
7c8ff89e | 442 | |
d62a17ae | 443 | listnode_add(ext_list, ext); |
7c8ff89e | 444 | |
d62a17ae | 445 | return ext; |
7c8ff89e DS |
446 | } |
447 | ||
1febb13d S |
448 | /* |
449 | * Walk all the ei received from zebra for a route type and apply | |
450 | * default route-map. | |
451 | */ | |
452 | bool ospf_external_default_routemap_apply_walk(struct ospf *ospf, | |
453 | struct list *ext_list, | |
454 | struct external_info *default_ei) | |
455 | { | |
456 | struct listnode *node; | |
457 | struct ospf_external *ext; | |
458 | struct route_node *rn; | |
459 | struct external_info *ei = NULL; | |
460 | int ret = 0; | |
461 | ||
462 | for (ALL_LIST_ELEMENTS_RO(ext_list, node, ext)) { | |
463 | if (!ext->external_info) | |
464 | continue; | |
465 | ||
466 | for (rn = route_top(ext->external_info); rn; | |
467 | rn = route_next(rn)) { | |
468 | ei = rn->info; | |
469 | if (!ei) | |
470 | continue; | |
471 | ret = ospf_external_info_apply_default_routemap( | |
472 | ospf, ei, default_ei); | |
473 | if (ret) | |
474 | break; | |
475 | } | |
476 | } | |
477 | ||
478 | if (ret && ei) { | |
479 | if (IS_DEBUG_OSPF_DEFAULT_INFO) | |
96b663a3 MS |
480 | zlog_debug("Default originate routemap permit ei: %pI4", |
481 | &ei->p.prefix); | |
1febb13d S |
482 | return true; |
483 | } | |
484 | ||
485 | return false; | |
486 | } | |
487 | ||
488 | /* | |
489 | * Function to originate or flush default after applying | |
490 | * route-map on all ei. | |
491 | */ | |
492 | static int ospf_external_lsa_default_routemap_timer(struct thread *thread) | |
493 | { | |
494 | struct list *ext_list; | |
495 | struct ospf *ospf = THREAD_ARG(thread); | |
496 | struct prefix_ipv4 p; | |
497 | int type; | |
498 | int ret = 0; | |
499 | struct ospf_lsa *lsa; | |
500 | struct external_info *default_ei; | |
501 | ||
502 | p.family = AF_INET; | |
503 | p.prefixlen = 0; | |
504 | p.prefix.s_addr = INADDR_ANY; | |
505 | ||
506 | /* Get the default extenal info. */ | |
507 | default_ei = ospf_external_info_lookup(ospf, DEFAULT_ROUTE, | |
508 | ospf->instance, &p); | |
509 | if (!default_ei) { | |
510 | /* Nothing to be done here. */ | |
511 | if (IS_DEBUG_OSPF_DEFAULT_INFO) | |
512 | zlog_debug("Default originate info not present"); | |
513 | return 0; | |
514 | } | |
515 | ||
516 | /* For all the ei apply route-map */ | |
517 | for (type = 0; type <= ZEBRA_ROUTE_MAX; type++) { | |
518 | ext_list = ospf->external[type]; | |
519 | if (!ext_list || type == ZEBRA_ROUTE_OSPF) | |
520 | continue; | |
521 | ||
522 | ret = ospf_external_default_routemap_apply_walk(ospf, ext_list, | |
523 | default_ei); | |
524 | if (ret) | |
525 | break; | |
526 | } | |
527 | ||
528 | /* Get the default LSA. */ | |
529 | lsa = ospf_external_info_find_lsa(ospf, &p); | |
530 | ||
531 | /* If permit then originate default. */ | |
532 | if (ret && !lsa) | |
533 | ospf_external_lsa_originate(ospf, default_ei); | |
534 | else if (ret && lsa && IS_LSA_MAXAGE(lsa)) | |
63f0e941 | 535 | ospf_external_lsa_refresh(ospf, lsa, default_ei, true, false); |
1febb13d S |
536 | else if (!ret && lsa) |
537 | ospf_external_lsa_flush(ospf, DEFAULT_ROUTE, &default_ei->p, 0); | |
538 | ||
539 | return 1; | |
540 | } | |
541 | ||
542 | ||
d7c0a89a | 543 | void ospf_external_del(struct ospf *ospf, uint8_t type, unsigned short instance) |
7c8ff89e | 544 | { |
d62a17ae | 545 | struct ospf_external *ext; |
546 | ||
de1ac5fd | 547 | ext = ospf_external_lookup(ospf, type, instance); |
d62a17ae | 548 | |
549 | if (ext) { | |
550 | if (EXTERNAL_INFO(ext)) | |
551 | route_table_finish(EXTERNAL_INFO(ext)); | |
552 | ||
de1ac5fd CS |
553 | listnode_delete(ospf->external[type], ext); |
554 | ||
555 | if (!ospf->external[type]->count) | |
6a154c88 | 556 | list_delete(&ospf->external[type]); |
de1ac5fd | 557 | |
7f586094 | 558 | XFREE(MTYPE_OSPF_EXTERNAL, ext); |
d62a17ae | 559 | } |
1febb13d S |
560 | |
561 | /* | |
562 | * Check if default needs to be flushed too. | |
563 | */ | |
564 | thread_add_event(master, ospf_external_lsa_default_routemap_timer, ospf, | |
565 | 0, &ospf->t_default_routemap_timer); | |
7c8ff89e DS |
566 | } |
567 | ||
43e7abb5 OD |
568 | /* Update NHLFE for Prefix SID */ |
569 | void ospf_zebra_update_prefix_sid(const struct sr_prefix *srp) | |
570 | { | |
571 | struct zapi_labels zl; | |
572 | struct zapi_nexthop *znh; | |
4ea5353b | 573 | struct zapi_nexthop *znh_backup; |
43e7abb5 OD |
574 | struct listnode *node; |
575 | struct ospf_path *path; | |
576 | ||
43e7abb5 OD |
577 | /* Prepare message. */ |
578 | memset(&zl, 0, sizeof(zl)); | |
579 | zl.type = ZEBRA_LSP_OSPF_SR; | |
580 | zl.local_label = srp->label_in; | |
581 | ||
582 | switch (srp->type) { | |
583 | case LOCAL_SID: | |
584 | /* Set Label for local Prefix */ | |
585 | znh = &zl.nexthops[zl.nexthop_num++]; | |
586 | znh->type = NEXTHOP_TYPE_IFINDEX; | |
587 | znh->ifindex = srp->nhlfe.ifindex; | |
588 | znh->label_num = 1; | |
589 | znh->labels[0] = srp->nhlfe.label_out; | |
56981b40 OD |
590 | |
591 | osr_debug("SR (%s): Configure Prefix %pFX with labels %u/%u", | |
592 | __func__, (struct prefix *)&srp->prefv4, | |
593 | srp->label_in, srp->nhlfe.label_out); | |
594 | ||
43e7abb5 OD |
595 | break; |
596 | ||
597 | case PREF_SID: | |
598 | /* Update route in the RIB too. */ | |
599 | SET_FLAG(zl.message, ZAPI_LABELS_FTN); | |
600 | zl.route.prefix.u.prefix4 = srp->prefv4.prefix; | |
601 | zl.route.prefix.prefixlen = srp->prefv4.prefixlen; | |
602 | zl.route.prefix.family = srp->prefv4.family; | |
603 | zl.route.type = ZEBRA_ROUTE_OSPF; | |
604 | zl.route.instance = 0; | |
605 | ||
606 | /* Check that SRP contains at least one valid path */ | |
607 | if (srp->route == NULL) { | |
608 | return; | |
609 | } | |
56981b40 OD |
610 | |
611 | osr_debug("SR (%s): Configure Prefix %pFX with", | |
612 | __func__, (struct prefix *)&srp->prefv4); | |
613 | ||
43e7abb5 OD |
614 | for (ALL_LIST_ELEMENTS_RO(srp->route->paths, node, path)) { |
615 | if (path->srni.label_out == MPLS_INVALID_LABEL) | |
616 | continue; | |
617 | ||
618 | if (zl.nexthop_num >= MULTIPATH_NUM) | |
619 | break; | |
620 | ||
f026b24e G |
621 | /* |
622 | * TI-LFA backup path label stack comes first, if | |
623 | * present. | |
624 | */ | |
4ea5353b G |
625 | if (path->srni.backup_label_stack) { |
626 | znh_backup = &zl.backup_nexthops | |
627 | [zl.backup_nexthop_num++]; | |
f026b24e | 628 | znh_backup->type = NEXTHOP_TYPE_IPV4; |
4ea5353b G |
629 | znh_backup->gate.ipv4 = |
630 | path->srni.backup_nexthop; | |
631 | ||
4ea5353b G |
632 | memcpy(znh_backup->labels, |
633 | path->srni.backup_label_stack->label, | |
634 | sizeof(mpls_label_t) | |
f026b24e G |
635 | * path->srni.backup_label_stack |
636 | ->num_labels); | |
637 | ||
638 | znh_backup->label_num = | |
639 | path->srni.backup_label_stack | |
640 | ->num_labels; | |
641 | if (path->srni.label_out | |
642 | != MPLS_LABEL_IPV4_EXPLICIT_NULL | |
643 | && path->srni.label_out | |
644 | != MPLS_LABEL_IMPLICIT_NULL) | |
645 | znh_backup->labels | |
646 | [znh_backup->label_num++] = | |
647 | path->srni.label_out; | |
4ea5353b G |
648 | } |
649 | ||
43e7abb5 OD |
650 | znh = &zl.nexthops[zl.nexthop_num++]; |
651 | znh->type = NEXTHOP_TYPE_IPV4_IFINDEX; | |
652 | znh->gate.ipv4 = path->nexthop; | |
653 | znh->ifindex = path->ifindex; | |
654 | znh->label_num = 1; | |
655 | znh->labels[0] = path->srni.label_out; | |
4ea5353b | 656 | |
56981b40 | 657 | osr_debug(" |- labels %u/%u", srp->label_in, |
270e66a2 | 658 | path->srni.label_out); |
56981b40 | 659 | |
4ea5353b G |
660 | /* Set TI-LFA backup nexthop info if present */ |
661 | if (path->srni.backup_label_stack) { | |
662 | SET_FLAG(zl.message, ZAPI_LABELS_HAS_BACKUPS); | |
663 | SET_FLAG(znh->flags, | |
664 | ZAPI_NEXTHOP_FLAG_HAS_BACKUP); | |
665 | ||
666 | /* Just care about a single TI-LFA backup path | |
667 | * for now */ | |
668 | znh->backup_num = 1; | |
669 | znh->backup_idx[0] = zl.backup_nexthop_num - 1; | |
670 | } | |
43e7abb5 OD |
671 | } |
672 | break; | |
5d8c8d0b DS |
673 | case ADJ_SID: |
674 | case LAN_ADJ_SID: | |
43e7abb5 OD |
675 | return; |
676 | } | |
677 | ||
678 | /* Finally, send message to zebra. */ | |
679 | (void)zebra_send_mpls_labels(zclient, ZEBRA_MPLS_LABELS_REPLACE, &zl); | |
680 | } | |
681 | ||
682 | /* Remove NHLFE for Prefix-SID */ | |
683 | void ospf_zebra_delete_prefix_sid(const struct sr_prefix *srp) | |
684 | { | |
685 | struct zapi_labels zl; | |
686 | ||
687 | osr_debug("SR (%s): Delete Labels %u for Prefix %pFX", __func__, | |
688 | srp->label_in, (struct prefix *)&srp->prefv4); | |
689 | ||
690 | /* Prepare message. */ | |
691 | memset(&zl, 0, sizeof(zl)); | |
692 | zl.type = ZEBRA_LSP_OSPF_SR; | |
693 | zl.local_label = srp->label_in; | |
694 | ||
695 | if (srp->type == PREF_SID) { | |
696 | /* Update route in the RIB too */ | |
697 | SET_FLAG(zl.message, ZAPI_LABELS_FTN); | |
698 | zl.route.prefix.u.prefix4 = srp->prefv4.prefix; | |
699 | zl.route.prefix.prefixlen = srp->prefv4.prefixlen; | |
700 | zl.route.prefix.family = srp->prefv4.family; | |
701 | zl.route.type = ZEBRA_ROUTE_OSPF; | |
702 | zl.route.instance = 0; | |
703 | } | |
704 | ||
705 | /* Send message to zebra. */ | |
706 | (void)zebra_send_mpls_labels(zclient, ZEBRA_MPLS_LABELS_DELETE, &zl); | |
707 | } | |
708 | ||
709 | /* Send MPLS Label entry to Zebra for installation or deletion */ | |
710 | void ospf_zebra_send_adjacency_sid(int cmd, struct sr_nhlfe nhlfe) | |
711 | { | |
712 | struct zapi_labels zl; | |
713 | struct zapi_nexthop *znh; | |
714 | ||
715 | osr_debug("SR (%s): %s Labels %u/%u for Adjacency via %u", __func__, | |
716 | cmd == ZEBRA_MPLS_LABELS_ADD ? "Add" : "Delete", | |
717 | nhlfe.label_in, nhlfe.label_out, nhlfe.ifindex); | |
718 | ||
719 | memset(&zl, 0, sizeof(zl)); | |
720 | zl.type = ZEBRA_LSP_OSPF_SR; | |
721 | zl.local_label = nhlfe.label_in; | |
722 | zl.nexthop_num = 1; | |
723 | znh = &zl.nexthops[0]; | |
724 | znh->type = NEXTHOP_TYPE_IPV4_IFINDEX; | |
725 | znh->gate.ipv4 = nhlfe.nexthop; | |
726 | znh->ifindex = nhlfe.ifindex; | |
727 | znh->label_num = 1; | |
728 | znh->labels[0] = nhlfe.label_out; | |
729 | ||
730 | (void)zebra_send_mpls_labels(zclient, cmd, &zl); | |
731 | } | |
732 | ||
d7c0a89a QY |
733 | struct ospf_redist *ospf_redist_lookup(struct ospf *ospf, uint8_t type, |
734 | unsigned short instance) | |
7c8ff89e | 735 | { |
d62a17ae | 736 | struct list *red_list; |
737 | struct listnode *node; | |
738 | struct ospf_redist *red; | |
7c8ff89e | 739 | |
d62a17ae | 740 | red_list = ospf->redist[type]; |
741 | if (!red_list) | |
742 | return (NULL); | |
7c8ff89e | 743 | |
d62a17ae | 744 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) |
745 | if (red->instance == instance) | |
746 | return red; | |
7c8ff89e | 747 | |
d62a17ae | 748 | return NULL; |
7c8ff89e DS |
749 | } |
750 | ||
d7c0a89a QY |
751 | struct ospf_redist *ospf_redist_add(struct ospf *ospf, uint8_t type, |
752 | unsigned short instance) | |
7c8ff89e | 753 | { |
d62a17ae | 754 | struct list *red_list; |
755 | struct ospf_redist *red; | |
7c8ff89e | 756 | |
d62a17ae | 757 | red = ospf_redist_lookup(ospf, type, instance); |
758 | if (red) | |
759 | return red; | |
7c8ff89e | 760 | |
d62a17ae | 761 | if (!ospf->redist[type]) |
762 | ospf->redist[type] = list_new(); | |
7c8ff89e | 763 | |
d62a17ae | 764 | red_list = ospf->redist[type]; |
9f5dc319 | 765 | red = XCALLOC(MTYPE_OSPF_REDISTRIBUTE, sizeof(struct ospf_redist)); |
d62a17ae | 766 | red->instance = instance; |
767 | red->dmetric.type = -1; | |
768 | red->dmetric.value = -1; | |
1fb93326 | 769 | ROUTEMAP_NAME(red) = NULL; |
770 | ROUTEMAP(red) = NULL; | |
7c8ff89e | 771 | |
d62a17ae | 772 | listnode_add(red_list, red); |
7c8ff89e | 773 | |
d62a17ae | 774 | return red; |
7c8ff89e DS |
775 | } |
776 | ||
d7c0a89a | 777 | void ospf_redist_del(struct ospf *ospf, uint8_t type, unsigned short instance) |
7c8ff89e | 778 | { |
d62a17ae | 779 | struct ospf_redist *red; |
780 | ||
781 | red = ospf_redist_lookup(ospf, type, instance); | |
782 | ||
783 | if (red) { | |
784 | listnode_delete(ospf->redist[type], red); | |
785 | if (!ospf->redist[type]->count) { | |
6a154c88 | 786 | list_delete(&ospf->redist[type]); |
d62a17ae | 787 | } |
97a69b31 | 788 | ospf_routemap_unset(red); |
7f586094 | 789 | XFREE(MTYPE_OSPF_REDISTRIBUTE, red); |
d62a17ae | 790 | } |
7c8ff89e DS |
791 | } |
792 | ||
793 | ||
d7c0a89a QY |
794 | int ospf_is_type_redistributed(struct ospf *ospf, int type, |
795 | unsigned short instance) | |
718e3744 | 796 | { |
d62a17ae | 797 | return (DEFAULT_ROUTE_TYPE(type) |
49db7a7b | 798 | ? vrf_bitmap_check(zclient->default_information[AFI_IP], |
b5a8894d | 799 | ospf->vrf_id) |
d62a17ae | 800 | : ((instance |
801 | && redist_check_instance( | |
b259f5af DS |
802 | &zclient->mi_redist[AFI_IP][type], |
803 | instance)) | |
d62a17ae | 804 | || (!instance |
805 | && vrf_bitmap_check( | |
b259f5af DS |
806 | zclient->redist[AFI_IP][type], |
807 | ospf->vrf_id)))); | |
718e3744 | 808 | } |
809 | ||
7bced643 IR |
810 | int ospf_redistribute_update(struct ospf *ospf, struct ospf_redist *red, |
811 | int type, unsigned short instance, int mtype, | |
812 | int mvalue) | |
718e3744 | 813 | { |
d62a17ae | 814 | int force = 0; |
162dbe41 | 815 | |
7bced643 IR |
816 | if (mtype != red->dmetric.type) { |
817 | red->dmetric.type = mtype; | |
818 | force = LSA_REFRESH_FORCE; | |
819 | } | |
820 | if (mvalue != red->dmetric.value) { | |
821 | red->dmetric.value = mvalue; | |
822 | force = LSA_REFRESH_FORCE; | |
162dbe41 | 823 | } |
824 | ||
7bced643 | 825 | ospf_external_lsa_refresh_type(ospf, type, instance, force); |
d62a17ae | 826 | |
7bced643 IR |
827 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
828 | zlog_debug( | |
829 | "Redistribute[%s][%d]: Refresh Type[%d], Metric[%d]", | |
830 | ospf_redist_string(type), instance, | |
831 | metric_type(ospf, type, instance), | |
832 | metric_value(ospf, type, instance)); | |
d62a17ae | 833 | |
7bced643 IR |
834 | return CMD_SUCCESS; |
835 | } | |
d62a17ae | 836 | |
7bced643 IR |
837 | int ospf_redistribute_set(struct ospf *ospf, struct ospf_redist *red, int type, |
838 | unsigned short instance, int mtype, int mvalue) | |
839 | { | |
d62a17ae | 840 | red->dmetric.type = mtype; |
841 | red->dmetric.value = mvalue; | |
842 | ||
de1ac5fd | 843 | ospf_external_add(ospf, type, instance); |
d62a17ae | 844 | |
845 | zclient_redistribute(ZEBRA_REDISTRIBUTE_ADD, zclient, AFI_IP, type, | |
b5a8894d | 846 | instance, ospf->vrf_id); |
d62a17ae | 847 | |
848 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) | |
996c9314 LB |
849 | zlog_debug( |
850 | "Redistribute[%s][%d] vrf id %u: Start Type[%d], Metric[%d]", | |
851 | ospf_redist_string(type), instance, ospf->vrf_id, | |
852 | metric_type(ospf, type, instance), | |
853 | metric_value(ospf, type, instance)); | |
d62a17ae | 854 | |
855 | ospf_asbr_status_update(ospf, ++ospf->redistribute); | |
856 | ||
857 | return CMD_SUCCESS; | |
718e3744 | 858 | } |
859 | ||
d7c0a89a QY |
860 | int ospf_redistribute_unset(struct ospf *ospf, int type, |
861 | unsigned short instance) | |
718e3744 | 862 | { |
d62a17ae | 863 | if (type == zclient->redist_default && instance == zclient->instance) |
864 | return CMD_SUCCESS; | |
718e3744 | 865 | |
d62a17ae | 866 | zclient_redistribute(ZEBRA_REDISTRIBUTE_DELETE, zclient, AFI_IP, type, |
b5a8894d | 867 | instance, ospf->vrf_id); |
cf795c5d | 868 | |
d62a17ae | 869 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
b5a8894d CS |
870 | zlog_debug("Redistribute[%s][%d] vrf id %u: Stop", |
871 | ospf_redist_string(type), instance, ospf->vrf_id); | |
718e3744 | 872 | |
d62a17ae | 873 | /* Remove the routes from OSPF table. */ |
874 | ospf_redistribute_withdraw(ospf, type, instance); | |
7c8ff89e | 875 | |
de1ac5fd | 876 | ospf_external_del(ospf, type, instance); |
718e3744 | 877 | |
d62a17ae | 878 | ospf_asbr_status_update(ospf, --ospf->redistribute); |
718e3744 | 879 | |
d62a17ae | 880 | return CMD_SUCCESS; |
718e3744 | 881 | } |
882 | ||
d62a17ae | 883 | int ospf_redistribute_default_set(struct ospf *ospf, int originate, int mtype, |
884 | int mvalue) | |
718e3744 | 885 | { |
1fb93326 | 886 | struct prefix_ipv4 p; |
887 | struct in_addr nexthop; | |
888 | int cur_originate = ospf->default_originate; | |
d5eac1e0 | 889 | const char *type_str = NULL; |
1fb93326 | 890 | |
975a328e | 891 | nexthop.s_addr = INADDR_ANY; |
1fb93326 | 892 | p.family = AF_INET; |
975a328e | 893 | p.prefix.s_addr = INADDR_ANY; |
1fb93326 | 894 | p.prefixlen = 0; |
895 | ||
d62a17ae | 896 | ospf->default_originate = originate; |
020709f9 | 897 | |
d5eac1e0 | 898 | if (cur_originate == originate) { |
1fb93326 | 899 | /* Refresh the lsa since metric might different */ |
d62a17ae | 900 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
901 | zlog_debug( | |
902 | "Redistribute[%s]: Refresh Type[%d], Metric[%d]", | |
903 | ospf_redist_string(DEFAULT_ROUTE), | |
904 | metric_type(ospf, DEFAULT_ROUTE, 0), | |
905 | metric_value(ospf, DEFAULT_ROUTE, 0)); | |
718e3744 | 906 | |
1fb93326 | 907 | ospf_external_lsa_refresh_default(ospf); |
d5eac1e0 | 908 | return CMD_SUCCESS; |
1fb93326 | 909 | } |
718e3744 | 910 | |
d5eac1e0 DL |
911 | switch (cur_originate) { |
912 | case DEFAULT_ORIGINATE_NONE: | |
913 | break; | |
914 | case DEFAULT_ORIGINATE_ZEBRA: | |
1fb93326 | 915 | zclient_redistribute_default(ZEBRA_REDISTRIBUTE_DEFAULT_DELETE, |
49db7a7b | 916 | zclient, AFI_IP, ospf->vrf_id); |
d5eac1e0 DL |
917 | ospf->redistribute--; |
918 | break; | |
919 | case DEFAULT_ORIGINATE_ALWAYS: | |
920 | ospf_external_info_delete(ospf, DEFAULT_ROUTE, 0, p); | |
921 | ospf_external_del(ospf, DEFAULT_ROUTE, 0); | |
922 | ospf->redistribute--; | |
923 | break; | |
1fb93326 | 924 | } |
718e3744 | 925 | |
d5eac1e0 DL |
926 | switch (originate) { |
927 | case DEFAULT_ORIGINATE_NONE: | |
928 | type_str = "none"; | |
929 | break; | |
930 | case DEFAULT_ORIGINATE_ZEBRA: | |
931 | type_str = "normal"; | |
932 | ospf->redistribute++; | |
933 | zclient_redistribute_default(ZEBRA_REDISTRIBUTE_DEFAULT_ADD, | |
934 | zclient, AFI_IP, ospf->vrf_id); | |
935 | break; | |
936 | case DEFAULT_ORIGINATE_ALWAYS: | |
937 | type_str = "always"; | |
938 | ospf->redistribute++; | |
939 | ospf_external_add(ospf, DEFAULT_ROUTE, 0); | |
940 | ospf_external_info_add(ospf, DEFAULT_ROUTE, 0, p, 0, nexthop, | |
941 | 0); | |
942 | break; | |
943 | } | |
718e3744 | 944 | |
d62a17ae | 945 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
d5eac1e0 DL |
946 | zlog_debug("Redistribute[DEFAULT]: %s Type[%d], Metric[%d]", |
947 | type_str, | |
948 | metric_type(ospf, DEFAULT_ROUTE, 0), | |
949 | metric_value(ospf, DEFAULT_ROUTE, 0)); | |
718e3744 | 950 | |
d5eac1e0 DL |
951 | ospf_external_lsa_refresh_default(ospf); |
952 | ospf_asbr_status_update(ospf, ospf->redistribute); | |
d62a17ae | 953 | return CMD_SUCCESS; |
718e3744 | 954 | } |
955 | ||
d62a17ae | 956 | static int ospf_external_lsa_originate_check(struct ospf *ospf, |
957 | struct external_info *ei) | |
718e3744 | 958 | { |
d62a17ae | 959 | /* If prefix is multicast, then do not originate LSA. */ |
960 | if (IN_MULTICAST(htonl(ei->p.prefix.s_addr))) { | |
961 | zlog_info( | |
96b663a3 MS |
962 | "LSA[Type5:%pI4]: Not originate AS-external-LSA, Prefix belongs multicast", |
963 | &ei->p.prefix); | |
d62a17ae | 964 | return 0; |
965 | } | |
966 | ||
967 | /* Take care of default-originate. */ | |
1fe59b44 | 968 | if (is_default_prefix4(&ei->p)) |
d62a17ae | 969 | if (ospf->default_originate == DEFAULT_ORIGINATE_NONE) { |
970 | zlog_info( | |
3efd0893 | 971 | "LSA[Type5:0.0.0.0]: Not originate AS-external-LSA for default"); |
d62a17ae | 972 | return 0; |
973 | } | |
974 | ||
975 | return 1; | |
718e3744 | 976 | } |
977 | ||
978 | /* If connected prefix is OSPF enable interface, then do not announce. */ | |
d62a17ae | 979 | int ospf_distribute_check_connected(struct ospf *ospf, struct external_info *ei) |
718e3744 | 980 | { |
d62a17ae | 981 | struct listnode *node; |
982 | struct ospf_interface *oi; | |
718e3744 | 983 | |
718e3744 | 984 | |
d62a17ae | 985 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) |
986 | if (prefix_match(oi->address, (struct prefix *)&ei->p)) | |
987 | return 0; | |
988 | return 1; | |
718e3744 | 989 | } |
990 | ||
1febb13d S |
991 | |
992 | /* Apply default route-map on ei received. */ | |
993 | int ospf_external_info_apply_default_routemap(struct ospf *ospf, | |
994 | struct external_info *ei, | |
995 | struct external_info *default_ei) | |
996 | { | |
997 | struct ospf_redist *red; | |
998 | int type = default_ei->type; | |
999 | struct prefix_ipv4 *p = &ei->p; | |
1000 | struct route_map_set_values save_values; | |
1001 | ||
1002 | ||
1003 | if (!ospf_external_lsa_originate_check(ospf, default_ei)) | |
1004 | return 0; | |
1005 | ||
1006 | save_values = default_ei->route_map_set; | |
1007 | ospf_reset_route_map_set_values(&default_ei->route_map_set); | |
1008 | ||
1009 | /* apply route-map if needed */ | |
1010 | red = ospf_redist_lookup(ospf, type, ospf->instance); | |
1011 | if (red && ROUTEMAP_NAME(red)) { | |
1012 | route_map_result_t ret; | |
1013 | ||
1782514f | 1014 | ret = route_map_apply(ROUTEMAP(red), (struct prefix *)p, ei); |
1febb13d S |
1015 | |
1016 | if (ret == RMAP_DENYMATCH) { | |
1017 | ei->route_map_set = save_values; | |
1018 | return 0; | |
1019 | } | |
1020 | } | |
1021 | ||
1022 | return 1; | |
1023 | } | |
1024 | ||
1025 | ||
1026 | /* | |
1027 | * Default originated is based on route-map condition then | |
1028 | * apply route-map on received external info. Originate or | |
1029 | * flush based on route-map condition. | |
1030 | */ | |
1031 | static bool ospf_external_lsa_default_routemap_apply(struct ospf *ospf, | |
1032 | struct external_info *ei, | |
1033 | int cmd) | |
1034 | { | |
1035 | struct external_info *default_ei; | |
1036 | struct prefix_ipv4 p; | |
1037 | struct ospf_lsa *lsa; | |
1038 | int ret; | |
1039 | ||
1040 | p.family = AF_INET; | |
1041 | p.prefixlen = 0; | |
1042 | p.prefix.s_addr = INADDR_ANY; | |
1043 | ||
1044 | ||
1045 | /* Get the default extenal info. */ | |
1046 | default_ei = ospf_external_info_lookup(ospf, DEFAULT_ROUTE, | |
1047 | ospf->instance, &p); | |
1048 | if (!default_ei) { | |
1049 | /* Nothing to be done here. */ | |
1050 | return false; | |
1051 | } | |
1052 | ||
1053 | if (IS_DEBUG_OSPF_DEFAULT_INFO) | |
96b663a3 MS |
1054 | zlog_debug("Apply default originate routemap on ei: %pI4 cmd: %d", |
1055 | &ei->p.prefix, cmd); | |
1febb13d S |
1056 | |
1057 | ret = ospf_external_info_apply_default_routemap(ospf, ei, default_ei); | |
1058 | ||
1059 | /* If deny then nothing to be done both in add and del case. */ | |
1060 | if (!ret) { | |
1061 | if (IS_DEBUG_OSPF_DEFAULT_INFO) | |
96b663a3 MS |
1062 | zlog_debug("Default originte routemap deny for ei: %pI4", |
1063 | &ei->p.prefix); | |
1febb13d S |
1064 | return false; |
1065 | } | |
1066 | ||
1067 | /* Get the default LSA. */ | |
1068 | lsa = ospf_external_info_find_lsa(ospf, &p); | |
1069 | ||
1070 | /* If this is add route and permit then ooriginate default. */ | |
1071 | if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD) { | |
1072 | /* If permit and default already advertise then return. */ | |
1073 | if (lsa && !IS_LSA_MAXAGE(lsa)) { | |
1074 | if (IS_DEBUG_OSPF_DEFAULT_INFO) | |
02c671af | 1075 | zlog_debug("Default lsa already originated"); |
1febb13d S |
1076 | return true; |
1077 | } | |
1078 | ||
1079 | if (IS_DEBUG_OSPF_DEFAULT_INFO) | |
1080 | zlog_debug("Originating/Refreshing default lsa"); | |
1081 | ||
1082 | if (lsa && IS_LSA_MAXAGE(lsa)) | |
1083 | /* Refresh lsa.*/ | |
63f0e941 | 1084 | ospf_external_lsa_refresh(ospf, lsa, default_ei, true, |
1085 | false); | |
1febb13d S |
1086 | else |
1087 | /* If permit and default not advertised then advertise. | |
1088 | */ | |
1089 | ospf_external_lsa_originate(ospf, default_ei); | |
1090 | ||
1091 | } else if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_DEL) { | |
1092 | /* If deny and lsa is not originated then nothing to be done.*/ | |
1093 | if (!lsa) { | |
1094 | if (IS_DEBUG_OSPF_DEFAULT_INFO) | |
1095 | zlog_debug( | |
1096 | "Default lsa not originated, not flushing"); | |
1097 | return true; | |
1098 | } | |
1099 | ||
1100 | if (IS_DEBUG_OSPF_DEFAULT_INFO) | |
1101 | zlog_debug( | |
96b663a3 MS |
1102 | "Running default route-map again as ei: %pI4 deleted", |
1103 | &ei->p.prefix); | |
1febb13d S |
1104 | /* |
1105 | * if this route delete was permitted then we need to check | |
1106 | * there are any other external info which can still trigger | |
1107 | * default route origination else flush it. | |
1108 | */ | |
1109 | thread_add_event(master, | |
1110 | ospf_external_lsa_default_routemap_timer, ospf, | |
1111 | 0, &ospf->t_default_routemap_timer); | |
1112 | } | |
1113 | ||
1114 | return true; | |
1115 | } | |
1116 | ||
718e3744 | 1117 | /* return 1 if external LSA must be originated, 0 otherwise */ |
d62a17ae | 1118 | int ospf_redistribute_check(struct ospf *ospf, struct external_info *ei, |
1119 | int *changed) | |
718e3744 | 1120 | { |
d62a17ae | 1121 | struct route_map_set_values save_values; |
1122 | struct prefix_ipv4 *p = &ei->p; | |
1123 | struct ospf_redist *red; | |
1fe59b44 RZ |
1124 | uint8_t type = is_default_prefix4(&ei->p) ? DEFAULT_ROUTE : ei->type; |
1125 | unsigned short instance = is_default_prefix4(&ei->p) ? 0 : ei->instance; | |
87e6e11e | 1126 | route_tag_t saved_tag = 0; |
d62a17ae | 1127 | |
1febb13d S |
1128 | /* Default is handled differently. */ |
1129 | if (type == DEFAULT_ROUTE) | |
1130 | return 1; | |
1131 | ||
d62a17ae | 1132 | if (changed) |
1133 | *changed = 0; | |
1134 | ||
1135 | if (!ospf_external_lsa_originate_check(ospf, ei)) | |
1136 | return 0; | |
1137 | ||
1138 | /* Take care connected route. */ | |
1139 | if (type == ZEBRA_ROUTE_CONNECT | |
1140 | && !ospf_distribute_check_connected(ospf, ei)) | |
1141 | return 0; | |
1142 | ||
1143 | if (!DEFAULT_ROUTE_TYPE(type) && DISTRIBUTE_NAME(ospf, type)) | |
1144 | /* distirbute-list exists, but access-list may not? */ | |
1145 | if (DISTRIBUTE_LIST(ospf, type)) | |
1146 | if (access_list_apply(DISTRIBUTE_LIST(ospf, type), p) | |
1147 | == FILTER_DENY) { | |
2dbe669b | 1148 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
d62a17ae | 1149 | zlog_debug( |
2dbe669b DA |
1150 | "Redistribute[%s]: %pFX filtered by distribute-list.", |
1151 | ospf_redist_string(type), p); | |
d62a17ae | 1152 | return 0; |
1153 | } | |
1154 | ||
1155 | save_values = ei->route_map_set; | |
1156 | ospf_reset_route_map_set_values(&ei->route_map_set); | |
04e94d39 | 1157 | |
87e6e11e | 1158 | saved_tag = ei->tag; |
04e94d39 | 1159 | /* Resetting with original route tag */ |
1160 | ei->tag = ei->orig_tag; | |
d62a17ae | 1161 | |
1162 | /* apply route-map if needed */ | |
1163 | red = ospf_redist_lookup(ospf, type, instance); | |
1164 | if (red && ROUTEMAP_NAME(red)) { | |
b68885f9 | 1165 | route_map_result_t ret; |
d62a17ae | 1166 | |
1782514f | 1167 | ret = route_map_apply(ROUTEMAP(red), (struct prefix *)p, ei); |
d62a17ae | 1168 | |
1169 | if (ret == RMAP_DENYMATCH) { | |
1170 | ei->route_map_set = save_values; | |
2dbe669b | 1171 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
d62a17ae | 1172 | zlog_debug( |
2dbe669b DA |
1173 | "Redistribute[%s]: %pFX filtered by route-map.", |
1174 | ospf_redist_string(type), p); | |
d62a17ae | 1175 | return 0; |
1176 | } | |
1177 | ||
1178 | /* check if 'route-map set' changed something */ | |
87e6e11e | 1179 | if (changed) { |
d62a17ae | 1180 | *changed = !ospf_route_map_set_compare( |
1181 | &ei->route_map_set, &save_values); | |
87e6e11e | 1182 | |
1183 | /* check if tag is modified */ | |
1184 | *changed |= (saved_tag != ei->tag); | |
1185 | } | |
d62a17ae | 1186 | } |
1187 | ||
1188 | return 1; | |
718e3744 | 1189 | } |
1190 | ||
1191 | /* OSPF route-map set for redistribution */ | |
d62a17ae | 1192 | void ospf_routemap_set(struct ospf_redist *red, const char *name) |
718e3744 | 1193 | { |
93d836e6 | 1194 | if (ROUTEMAP_NAME(red)) { |
1195 | route_map_counter_decrement(ROUTEMAP(red)); | |
d62a17ae | 1196 | free(ROUTEMAP_NAME(red)); |
93d836e6 | 1197 | } |
718e3744 | 1198 | |
d62a17ae | 1199 | ROUTEMAP_NAME(red) = strdup(name); |
1200 | ROUTEMAP(red) = route_map_lookup_by_name(name); | |
93d836e6 | 1201 | route_map_counter_increment(ROUTEMAP(red)); |
718e3744 | 1202 | } |
1203 | ||
d62a17ae | 1204 | void ospf_routemap_unset(struct ospf_redist *red) |
718e3744 | 1205 | { |
93d836e6 | 1206 | if (ROUTEMAP_NAME(red)) { |
1207 | route_map_counter_decrement(ROUTEMAP(red)); | |
d62a17ae | 1208 | free(ROUTEMAP_NAME(red)); |
93d836e6 | 1209 | } |
718e3744 | 1210 | |
d62a17ae | 1211 | ROUTEMAP_NAME(red) = NULL; |
1212 | ROUTEMAP(red) = NULL; | |
718e3744 | 1213 | } |
1214 | ||
10514170 RW |
1215 | static int ospf_zebra_gr_update(struct ospf *ospf, int command, |
1216 | uint32_t stale_time) | |
1217 | { | |
1218 | struct zapi_cap api; | |
1219 | ||
1220 | if (!zclient || zclient->sock < 0 || !ospf) | |
1221 | return 1; | |
1222 | ||
1223 | memset(&api, 0, sizeof(struct zapi_cap)); | |
1224 | api.cap = command; | |
1225 | api.stale_removal_time = stale_time; | |
1226 | api.vrf_id = ospf->vrf_id; | |
1227 | ||
1228 | (void)zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, | |
1229 | &api); | |
1230 | ||
1231 | return 0; | |
1232 | } | |
1233 | ||
1234 | int ospf_zebra_gr_enable(struct ospf *ospf, uint32_t stale_time) | |
1235 | { | |
1236 | return ospf_zebra_gr_update(ospf, ZEBRA_CLIENT_GR_CAPABILITIES, | |
1237 | stale_time); | |
1238 | } | |
1239 | ||
1240 | int ospf_zebra_gr_disable(struct ospf *ospf) | |
1241 | { | |
1242 | return ospf_zebra_gr_update(ospf, ZEBRA_CLIENT_GR_DISABLE, 0); | |
1243 | } | |
1244 | ||
718e3744 | 1245 | /* Zebra route add and delete treatment. */ |
121f9dee | 1246 | static int ospf_zebra_read_route(ZAPI_CALLBACK_ARGS) |
718e3744 | 1247 | { |
74489921 RW |
1248 | struct zapi_route api; |
1249 | struct prefix_ipv4 p; | |
d62a17ae | 1250 | unsigned long ifindex; |
1251 | struct in_addr nexthop; | |
d62a17ae | 1252 | struct external_info *ei; |
1253 | struct ospf *ospf; | |
1254 | int i; | |
1fb93326 | 1255 | uint8_t rt_type; |
d62a17ae | 1256 | |
b5a8894d | 1257 | ospf = ospf_lookup_by_vrf_id(vrf_id); |
74489921 RW |
1258 | if (ospf == NULL) |
1259 | return 0; | |
d62a17ae | 1260 | |
74489921 RW |
1261 | if (zapi_route_decode(zclient->ibuf, &api) < 0) |
1262 | return -1; | |
d62a17ae | 1263 | |
74489921 RW |
1264 | ifindex = api.nexthops[0].ifindex; |
1265 | nexthop = api.nexthops[0].gate.ipv4; | |
1fb93326 | 1266 | rt_type = api.type; |
d62a17ae | 1267 | |
74489921 | 1268 | memcpy(&p, &api.prefix, sizeof(p)); |
d62a17ae | 1269 | if (IPV4_NET127(ntohl(p.prefix.s_addr))) |
1270 | return 0; | |
1271 | ||
1fb93326 | 1272 | /* Re-destributed route is default route. |
1273 | * Here, route type is used as 'ZEBRA_ROUTE_KERNEL' for | |
1274 | * updating ex-info. But in resetting (no default-info | |
1275 | * originate)ZEBRA_ROUTE_MAX is used to delete the ex-info. | |
1276 | * Resolved this inconsistency by maintaining same route type. | |
1277 | */ | |
1fe59b44 | 1278 | if (is_default_prefix4(&p)) |
1fb93326 | 1279 | rt_type = DEFAULT_ROUTE; |
1280 | ||
2dbe669b DA |
1281 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
1282 | zlog_debug("%s: cmd %s from client %s: vrf_id %d, p %pFX", | |
ae4080c5 | 1283 | __func__, zserv_command_string(cmd), |
2dbe669b | 1284 | zebra_route_string(api.type), vrf_id, &api.prefix); |
5c780bc9 | 1285 | |
121f9dee | 1286 | if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD) { |
d62a17ae | 1287 | /* XXX|HACK|TODO|FIXME: |
09a484dd DL |
1288 | * Maybe we should ignore reject/blackhole routes? Testing |
1289 | * shows that there is no problems though and this is only way | |
1290 | * to "summarize" routes in ASBR at the moment. Maybe we need | |
1291 | * just a better generalised solution for these types? | |
d62a17ae | 1292 | */ |
1293 | ||
74489921 | 1294 | /* Protocol tag overwrites all other tag value sent by zebra */ |
1fb93326 | 1295 | if (ospf->dtag[rt_type] > 0) |
1296 | api.tag = ospf->dtag[rt_type]; | |
d62a17ae | 1297 | |
1298 | /* | |
1299 | * Given zebra sends update for a prefix via ADD message, it | |
1300 | * should | |
1301 | * be considered as an implicit DEL for that prefix with other | |
1302 | * source | |
1303 | * types. | |
1304 | */ | |
1fb93326 | 1305 | for (i = 0; i <= ZEBRA_ROUTE_MAX; i++) |
1306 | if (i != rt_type) | |
996c9314 LB |
1307 | ospf_external_info_delete(ospf, i, api.instance, |
1308 | p); | |
d62a17ae | 1309 | |
1fb93326 | 1310 | ei = ospf_external_info_add(ospf, rt_type, api.instance, p, |
de1ac5fd | 1311 | ifindex, nexthop, api.tag); |
d62a17ae | 1312 | if (ei == NULL) { |
1313 | /* Nothing has changed, so nothing to do; return */ | |
1314 | return 0; | |
1315 | } | |
975a328e | 1316 | if (ospf->router_id.s_addr != INADDR_ANY) { |
1fe59b44 | 1317 | if (is_default_prefix4(&p)) |
6ec9c6a8 DS |
1318 | ospf_external_lsa_refresh_default(ospf); |
1319 | else { | |
1320 | struct ospf_external_aggr_rt *aggr; | |
1321 | struct as_external_lsa *al; | |
1322 | struct ospf_lsa *lsa = NULL; | |
1323 | struct in_addr mask; | |
1324 | ||
1325 | aggr = ospf_external_aggr_match(ospf, &ei->p); | |
1326 | ||
1327 | if (aggr) { | |
1328 | /* Check the AS-external-LSA | |
1329 | * should be originated. | |
1330 | */ | |
1331 | if (!ospf_redistribute_check(ospf, ei, | |
1332 | NULL)) | |
1333 | return 0; | |
1334 | ||
1335 | if (IS_DEBUG_OSPF(lsa, EXTNL_LSA_AGGR)) | |
1336 | zlog_debug( | |
1337 | "%s: Send Aggreate LSA (%pI4/%d)", | |
1338 | __func__, | |
1339 | &aggr->p.prefix, | |
1340 | aggr->p.prefixlen); | |
1341 | ||
1342 | ospf_originate_summary_lsa(ospf, aggr, | |
1343 | ei); | |
1344 | ||
1345 | /* Handling the case where the | |
1346 | * external route prefix | |
1347 | * and aggegate prefix is same | |
1348 | * If same dont flush the | |
1349 | * originated | |
1350 | * external LSA. | |
1351 | */ | |
1352 | if (prefix_same( | |
1353 | (struct prefix *)&aggr->p, | |
1354 | (struct prefix *)&ei->p)) | |
1355 | return 0; | |
1356 | ||
1357 | lsa = ospf_external_info_find_lsa( | |
1358 | ospf, &ei->p); | |
1359 | ||
1360 | if (lsa) { | |
1361 | al = (struct as_external_lsa *) | |
1362 | lsa->data; | |
1363 | masklen2ip(ei->p.prefixlen, | |
1364 | &mask); | |
1365 | ||
1366 | if (mask.s_addr | |
1367 | != al->mask.s_addr) | |
1368 | return 0; | |
960417cf | 1369 | |
6ec9c6a8 DS |
1370 | ospf_external_lsa_flush( |
1371 | ospf, ei->type, &ei->p, | |
1372 | 0); | |
1373 | } | |
1374 | } else { | |
1375 | struct ospf_lsa *current; | |
1376 | ||
1377 | current = ospf_external_info_find_lsa( | |
1378 | ospf, &ei->p); | |
1379 | if (!current) { | |
1380 | /* Check the | |
1381 | * AS-external-LSA | |
1382 | * should be | |
1383 | * originated. | |
960417cf | 1384 | */ |
1385 | if (!ospf_redistribute_check( | |
1386 | ospf, ei, NULL)) | |
1387 | return 0; | |
d62a17ae | 1388 | |
6ec9c6a8 DS |
1389 | ospf_external_lsa_originate( |
1390 | ospf, ei); | |
1391 | } else { | |
d62a17ae | 1392 | if (IS_DEBUG_OSPF( |
6ec9c6a8 DS |
1393 | zebra, |
1394 | ZEBRA_REDISTRIBUTE)) | |
d62a17ae | 1395 | zlog_debug( |
6ec9c6a8 | 1396 | "%s: %pI4 refreshing LSA", |
960417cf | 1397 | __func__, |
6ec9c6a8 DS |
1398 | &p.prefix); |
1399 | ospf_external_lsa_refresh( | |
1400 | ospf, current, ei, | |
1401 | LSA_REFRESH_FORCE, | |
1402 | false); | |
d62a17ae | 1403 | } |
1404 | } | |
1405 | } | |
1406 | } | |
1febb13d S |
1407 | |
1408 | /* | |
1409 | * Check if default-information originate is | |
1410 | * with some routemap prefix/access list match. | |
1411 | */ | |
1412 | ospf_external_lsa_default_routemap_apply(ospf, ei, cmd); | |
1413 | ||
6ec9c6a8 | 1414 | } else { /* if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_DEL) */ |
960417cf | 1415 | struct ospf_external_aggr_rt *aggr; |
1416 | ||
1febb13d | 1417 | ei = ospf_external_info_lookup(ospf, rt_type, api.instance, &p); |
960417cf | 1418 | if (ei == NULL) |
1419 | return 0; | |
6ec9c6a8 DS |
1420 | |
1421 | /* | |
1422 | * Check if default-information originate i | |
1423 | * with some routemap prefix/access list match. | |
1424 | * Apply before ei is deleted. | |
1425 | */ | |
1426 | ospf_external_lsa_default_routemap_apply(ospf, ei, cmd); | |
1febb13d | 1427 | |
960417cf | 1428 | aggr = ospf_external_aggr_match(ospf, &ei->p); |
1429 | ||
1430 | if (aggr && (ei->aggr_route == aggr)) { | |
1431 | ospf_unlink_ei_from_aggr(ospf, aggr, ei); | |
1432 | ||
1433 | ospf_external_info_delete(ospf, rt_type, api.instance, | |
1434 | p); | |
1435 | } else { | |
1436 | ospf_external_info_delete(ospf, rt_type, api.instance, | |
1437 | p); | |
1438 | ||
1fe59b44 | 1439 | if (is_default_prefix4(&p)) |
960417cf | 1440 | ospf_external_lsa_refresh_default(ospf); |
1441 | else | |
1442 | ospf_external_lsa_flush(ospf, rt_type, &p, | |
1443 | ifindex /*, nexthop */); | |
1444 | } | |
5048fe14 | 1445 | } |
d62a17ae | 1446 | |
1447 | return 0; | |
718e3744 | 1448 | } |
6b0655a2 | 1449 | |
cf795c5d | 1450 | |
d62a17ae | 1451 | int ospf_distribute_list_out_set(struct ospf *ospf, int type, const char *name) |
718e3744 | 1452 | { |
d62a17ae | 1453 | /* Lookup access-list for distribute-list. */ |
1454 | DISTRIBUTE_LIST(ospf, type) = access_list_lookup(AFI_IP, name); | |
718e3744 | 1455 | |
d62a17ae | 1456 | /* Clear previous distribute-name. */ |
1457 | if (DISTRIBUTE_NAME(ospf, type)) | |
1458 | free(DISTRIBUTE_NAME(ospf, type)); | |
718e3744 | 1459 | |
d62a17ae | 1460 | /* Set distribute-name. */ |
1461 | DISTRIBUTE_NAME(ospf, type) = strdup(name); | |
718e3744 | 1462 | |
d62a17ae | 1463 | /* If access-list have been set, schedule update timer. */ |
1464 | if (DISTRIBUTE_LIST(ospf, type)) | |
1465 | ospf_distribute_list_update(ospf, type, 0); | |
718e3744 | 1466 | |
d62a17ae | 1467 | return CMD_SUCCESS; |
718e3744 | 1468 | } |
1469 | ||
d62a17ae | 1470 | int ospf_distribute_list_out_unset(struct ospf *ospf, int type, |
1471 | const char *name) | |
718e3744 | 1472 | { |
d62a17ae | 1473 | /* Schedule update timer. */ |
1474 | if (DISTRIBUTE_LIST(ospf, type)) | |
1475 | ospf_distribute_list_update(ospf, type, 0); | |
718e3744 | 1476 | |
d62a17ae | 1477 | /* Unset distribute-list. */ |
1478 | DISTRIBUTE_LIST(ospf, type) = NULL; | |
718e3744 | 1479 | |
d62a17ae | 1480 | /* Clear distribute-name. */ |
1481 | if (DISTRIBUTE_NAME(ospf, type)) | |
1482 | free(DISTRIBUTE_NAME(ospf, type)); | |
cf795c5d | 1483 | |
d62a17ae | 1484 | DISTRIBUTE_NAME(ospf, type) = NULL; |
718e3744 | 1485 | |
d62a17ae | 1486 | return CMD_SUCCESS; |
718e3744 | 1487 | } |
1488 | ||
1489 | /* distribute-list update timer. */ | |
d62a17ae | 1490 | static int ospf_distribute_list_update_timer(struct thread *thread) |
718e3744 | 1491 | { |
d62a17ae | 1492 | struct route_node *rn; |
1493 | struct external_info *ei; | |
1494 | struct route_table *rt; | |
1495 | struct ospf_lsa *lsa; | |
b5a8894d CS |
1496 | int type, default_refresh = 0, arg_type; |
1497 | struct ospf *ospf = NULL; | |
996c9314 | 1498 | void **arg = THREAD_ARG(thread); |
b5a8894d CS |
1499 | |
1500 | ospf = (struct ospf *)arg[0]; | |
1501 | arg_type = (int)(intptr_t)arg[1]; | |
d62a17ae | 1502 | |
d62a17ae | 1503 | if (ospf == NULL) |
1504 | return 0; | |
1505 | ||
1506 | ospf->t_distribute_update = NULL; | |
1507 | ||
1508 | zlog_info("Zebra[Redistribute]: distribute-list update timer fired!"); | |
1509 | ||
b5a8894d | 1510 | if (IS_DEBUG_OSPF_EVENT) { |
996c9314 LB |
1511 | zlog_debug( |
1512 | "%s: ospf distribute-list update arg_type %d vrf %s id %d", | |
5e81f5dd DS |
1513 | __func__, arg_type, ospf_vrf_id_to_name(ospf->vrf_id), |
1514 | ospf->vrf_id); | |
b5a8894d CS |
1515 | } |
1516 | ||
d62a17ae | 1517 | /* foreach all external info. */ |
1518 | for (type = 0; type <= ZEBRA_ROUTE_MAX; type++) { | |
1519 | struct list *ext_list; | |
1520 | struct listnode *node; | |
1521 | struct ospf_external *ext; | |
1522 | ||
de1ac5fd | 1523 | ext_list = ospf->external[type]; |
d62a17ae | 1524 | if (!ext_list) |
1525 | continue; | |
1526 | ||
1527 | for (ALL_LIST_ELEMENTS_RO(ext_list, node, ext)) { | |
1528 | rt = ext->external_info; | |
1529 | if (!rt) | |
1530 | continue; | |
6ec9c6a8 DS |
1531 | for (rn = route_top(rt); rn; rn = route_next(rn)) { |
1532 | ei = rn->info; | |
1533 | if (!ei) | |
1534 | continue; | |
1535 | ||
1fe59b44 | 1536 | if (is_default_prefix4(&ei->p)) |
6ec9c6a8 DS |
1537 | default_refresh = 1; |
1538 | else { | |
1539 | struct ospf_external_aggr_rt *aggr; | |
1540 | ||
1541 | aggr = ospf_external_aggr_match(ospf, | |
1542 | &ei->p); | |
1543 | if (aggr) { | |
1544 | /* Check the | |
1545 | * AS-external-LSA | |
1546 | * should be originated. | |
1547 | */ | |
1548 | if (!ospf_redistribute_check( | |
1549 | ospf, ei, NULL)) { | |
1550 | ||
1551 | ospf_unlink_ei_from_aggr( | |
960417cf | 1552 | ospf, aggr, ei); |
6ec9c6a8 | 1553 | continue; |
960417cf | 1554 | } |
6ec9c6a8 DS |
1555 | |
1556 | if (IS_DEBUG_OSPF( | |
1557 | lsa, | |
1558 | EXTNL_LSA_AGGR)) | |
1559 | zlog_debug( | |
1560 | "%s: Send Aggregate LSA (%pI4/%d)", | |
1561 | __func__, | |
1562 | &aggr->p.prefix, | |
1563 | aggr->p.prefixlen); | |
1564 | ||
1565 | /* Originate Aggregate | |
1566 | * LSA | |
1567 | */ | |
1568 | ospf_originate_summary_lsa( | |
1569 | ospf, aggr, ei); | |
1570 | } else if ( | |
1571 | (lsa = ospf_external_info_find_lsa( | |
1572 | ospf, &ei->p))) { | |
1573 | int force = | |
1574 | LSA_REFRESH_IF_CHANGED; | |
1575 | /* If this is a MaxAge | |
1576 | * LSA, we need to | |
1577 | * force refresh it | |
1578 | * because distribute | |
1579 | * settings might have | |
1580 | * changed and now, | |
1581 | * this LSA needs to be | |
1582 | * originated, not be | |
1583 | * removed. | |
1584 | * If we don't force | |
1585 | * refresh it, it will | |
1586 | * remain a MaxAge LSA | |
1587 | * because it will look | |
1588 | * like it hasn't | |
1589 | * changed. Neighbors | |
1590 | * will not receive | |
1591 | * updates for this LSA. | |
1592 | */ | |
1593 | if (IS_LSA_MAXAGE(lsa)) | |
1594 | force = LSA_REFRESH_FORCE; | |
1595 | ||
1596 | ospf_external_lsa_refresh( | |
1597 | ospf, lsa, ei, force, | |
1598 | false); | |
1599 | } else { | |
1600 | if (!ospf_redistribute_check( | |
1601 | ospf, ei, NULL)) | |
1602 | continue; | |
1603 | ospf_external_lsa_originate( | |
1604 | ospf, ei); | |
960417cf | 1605 | } |
d62a17ae | 1606 | } |
6ec9c6a8 | 1607 | } |
d62a17ae | 1608 | } |
1609 | } | |
1610 | if (default_refresh) | |
1611 | ospf_external_lsa_refresh_default(ospf); | |
b5a8894d CS |
1612 | |
1613 | XFREE(MTYPE_OSPF_DIST_ARGS, arg); | |
d62a17ae | 1614 | return 0; |
718e3744 | 1615 | } |
1616 | ||
718e3744 | 1617 | /* Update distribute-list and set timer to apply access-list. */ |
d7c0a89a QY |
1618 | void ospf_distribute_list_update(struct ospf *ospf, int type, |
1619 | unsigned short instance) | |
718e3744 | 1620 | { |
d62a17ae | 1621 | struct ospf_external *ext; |
996c9314 | 1622 | void **args = XCALLOC(MTYPE_OSPF_DIST_ARGS, sizeof(void *) * 2); |
d62a17ae | 1623 | |
b5a8894d | 1624 | args[0] = ospf; |
996c9314 | 1625 | args[1] = (void *)((ptrdiff_t)type); |
b5a8894d | 1626 | |
d62a17ae | 1627 | /* External info does not exist. */ |
de1ac5fd | 1628 | ext = ospf_external_lookup(ospf, type, instance); |
6e3e2c6d | 1629 | if (!ext || !EXTERNAL_INFO(ext)) { |
a68730c6 | 1630 | XFREE(MTYPE_OSPF_DIST_ARGS, args); |
d62a17ae | 1631 | return; |
a68730c6 | 1632 | } |
d62a17ae | 1633 | |
1634 | /* If exists previously invoked thread, then let it continue. */ | |
a68730c6 DS |
1635 | if (ospf->t_distribute_update) { |
1636 | XFREE(MTYPE_OSPF_DIST_ARGS, args); | |
d62a17ae | 1637 | return; |
a68730c6 | 1638 | } |
d62a17ae | 1639 | |
1640 | /* Set timer. */ | |
1641 | ospf->t_distribute_update = NULL; | |
c4efd0f4 DA |
1642 | thread_add_timer_msec(master, ospf_distribute_list_update_timer, args, |
1643 | ospf->min_ls_interval, | |
d62a17ae | 1644 | &ospf->t_distribute_update); |
718e3744 | 1645 | } |
1646 | ||
1647 | /* If access-list is updated, apply some check. */ | |
d62a17ae | 1648 | static void ospf_filter_update(struct access_list *access) |
718e3744 | 1649 | { |
d62a17ae | 1650 | struct ospf *ospf; |
1651 | int type; | |
1652 | int abr_inv = 0; | |
1653 | struct ospf_area *area; | |
b5a8894d | 1654 | struct listnode *node, *n1; |
d62a17ae | 1655 | |
1656 | /* If OSPF instance does not exist, return right now. */ | |
b5a8894d | 1657 | if (listcount(om->ospf) == 0) |
d62a17ae | 1658 | return; |
1659 | ||
b5a8894d | 1660 | /* Iterate all ospf [VRF] instances */ |
43b8d1d8 | 1661 | for (ALL_LIST_ELEMENTS_RO(om->ospf, n1, ospf)) { |
b5a8894d CS |
1662 | /* Update distribute-list, and apply filter. */ |
1663 | for (type = 0; type <= ZEBRA_ROUTE_MAX; type++) { | |
1664 | struct list *red_list; | |
b5a8894d CS |
1665 | struct ospf_redist *red; |
1666 | ||
1667 | red_list = ospf->redist[type]; | |
1668 | if (red_list) | |
996c9314 LB |
1669 | for (ALL_LIST_ELEMENTS_RO(red_list, node, |
1670 | red)) { | |
b5a8894d | 1671 | if (ROUTEMAP(red)) { |
996c9314 LB |
1672 | /* if route-map is not NULL it |
1673 | * may be | |
b5a8894d CS |
1674 | * using this access list */ |
1675 | ospf_distribute_list_update( | |
996c9314 LB |
1676 | ospf, type, |
1677 | red->instance); | |
b5a8894d | 1678 | } |
d62a17ae | 1679 | } |
d62a17ae | 1680 | |
b5a8894d CS |
1681 | /* There is place for route-map for default-information |
1682 | * (ZEBRA_ROUTE_MAX), | |
1683 | * but no distribute list. */ | |
1684 | if (type == ZEBRA_ROUTE_MAX) | |
1685 | break; | |
1686 | ||
1687 | if (DISTRIBUTE_NAME(ospf, type)) { | |
1688 | /* Keep old access-list for distribute-list. */ | |
996c9314 LB |
1689 | struct access_list *old = |
1690 | DISTRIBUTE_LIST(ospf, type); | |
b5a8894d CS |
1691 | |
1692 | /* Update access-list for distribute-list. */ | |
996c9314 LB |
1693 | DISTRIBUTE_LIST(ospf, type) = |
1694 | access_list_lookup( | |
1695 | AFI_IP, | |
1696 | DISTRIBUTE_NAME(ospf, type)); | |
b5a8894d CS |
1697 | |
1698 | /* No update for this distribute type. */ | |
996c9314 LB |
1699 | if (old == NULL |
1700 | && DISTRIBUTE_LIST(ospf, type) == NULL) | |
b5a8894d CS |
1701 | continue; |
1702 | ||
1703 | /* Schedule distribute-list update timer. */ | |
1704 | if (DISTRIBUTE_LIST(ospf, type) == NULL | |
996c9314 LB |
1705 | || strcmp(DISTRIBUTE_NAME(ospf, type), |
1706 | access->name) | |
1707 | == 0) | |
1708 | ospf_distribute_list_update(ospf, type, | |
1709 | 0); | |
b5a8894d | 1710 | } |
d62a17ae | 1711 | } |
d62a17ae | 1712 | |
b5a8894d CS |
1713 | /* Update Area access-list. */ |
1714 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, node, area)) { | |
1715 | if (EXPORT_NAME(area)) { | |
1716 | EXPORT_LIST(area) = NULL; | |
1717 | abr_inv++; | |
1718 | } | |
d62a17ae | 1719 | |
b5a8894d CS |
1720 | if (IMPORT_NAME(area)) { |
1721 | IMPORT_LIST(area) = NULL; | |
1722 | abr_inv++; | |
1723 | } | |
d62a17ae | 1724 | } |
d62a17ae | 1725 | |
b5a8894d CS |
1726 | /* Schedule ABR tasks -- this will be changed -- takada. */ |
1727 | if (IS_OSPF_ABR(ospf) && abr_inv) | |
1728 | ospf_schedule_abr_task(ospf); | |
1729 | } | |
718e3744 | 1730 | } |
dd669bb0 | 1731 | |
1732 | /* If prefix-list is updated, do some updates. */ | |
d62a17ae | 1733 | void ospf_prefix_list_update(struct prefix_list *plist) |
dd669bb0 | 1734 | { |
b5a8894d | 1735 | struct ospf *ospf = NULL; |
d62a17ae | 1736 | int type; |
1737 | int abr_inv = 0; | |
1738 | struct ospf_area *area; | |
b5a8894d | 1739 | struct listnode *node, *n1; |
d62a17ae | 1740 | |
1741 | /* If OSPF instatnce does not exist, return right now. */ | |
b5a8894d | 1742 | if (listcount(om->ospf) == 0) |
d62a17ae | 1743 | return; |
1744 | ||
b5a8894d CS |
1745 | /* Iterate all ospf [VRF] instances */ |
1746 | for (ALL_LIST_ELEMENTS_RO(om->ospf, n1, ospf)) { | |
1747 | ||
1748 | /* Update all route-maps which are used | |
1749 | * as redistribution filters. | |
1750 | * They might use prefix-list. | |
1751 | */ | |
1752 | for (type = 0; type <= ZEBRA_ROUTE_MAX; type++) { | |
1753 | struct list *red_list; | |
b5a8894d CS |
1754 | struct ospf_redist *red; |
1755 | ||
1756 | red_list = ospf->redist[type]; | |
6ec9c6a8 DS |
1757 | if (!red_list) |
1758 | continue; | |
1759 | ||
1760 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) { | |
1761 | if (ROUTEMAP(red)) { | |
1762 | /* if route-map is not NULL | |
1763 | * it may be using | |
1764 | * this prefix list */ | |
1765 | ospf_distribute_list_update( | |
1766 | ospf, type, red->instance); | |
d62a17ae | 1767 | } |
1768 | } | |
b5a8894d | 1769 | } |
d62a17ae | 1770 | |
b5a8894d CS |
1771 | /* Update area filter-lists. */ |
1772 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, node, area)) { | |
1773 | /* Update filter-list in. */ | |
6ec9c6a8 DS |
1774 | if (PREFIX_NAME_IN(area) |
1775 | && strcmp(PREFIX_NAME_IN(area), | |
1776 | prefix_list_name(plist)) | |
1777 | == 0) { | |
1778 | PREFIX_LIST_IN(area) = prefix_list_lookup( | |
1779 | AFI_IP, PREFIX_NAME_IN(area)); | |
1780 | abr_inv++; | |
1781 | } | |
d62a17ae | 1782 | |
b5a8894d | 1783 | /* Update filter-list out. */ |
6ec9c6a8 DS |
1784 | if (PREFIX_NAME_OUT(area) |
1785 | && strcmp(PREFIX_NAME_OUT(area), | |
1786 | prefix_list_name(plist)) | |
1787 | == 0) { | |
1788 | PREFIX_LIST_IN(area) = prefix_list_lookup( | |
1789 | AFI_IP, PREFIX_NAME_OUT(area)); | |
1790 | abr_inv++; | |
1791 | } | |
b5a8894d | 1792 | } |
d62a17ae | 1793 | |
b5a8894d CS |
1794 | /* Schedule ABR task. */ |
1795 | if (IS_OSPF_ABR(ospf) && abr_inv) | |
1796 | ospf_schedule_abr_task(ospf); | |
1797 | } | |
dd669bb0 | 1798 | } |
cf795c5d | 1799 | |
d62a17ae | 1800 | static struct ospf_distance *ospf_distance_new(void) |
718e3744 | 1801 | { |
d62a17ae | 1802 | return XCALLOC(MTYPE_OSPF_DISTANCE, sizeof(struct ospf_distance)); |
718e3744 | 1803 | } |
1804 | ||
d62a17ae | 1805 | static void ospf_distance_free(struct ospf_distance *odistance) |
718e3744 | 1806 | { |
d62a17ae | 1807 | XFREE(MTYPE_OSPF_DISTANCE, odistance); |
718e3744 | 1808 | } |
1809 | ||
d62a17ae | 1810 | int ospf_distance_set(struct vty *vty, struct ospf *ospf, |
1811 | const char *distance_str, const char *ip_str, | |
1812 | const char *access_list_str) | |
718e3744 | 1813 | { |
d62a17ae | 1814 | int ret; |
1815 | struct prefix_ipv4 p; | |
d7c0a89a | 1816 | uint8_t distance; |
d62a17ae | 1817 | struct route_node *rn; |
1818 | struct ospf_distance *odistance; | |
1819 | ||
1820 | ret = str2prefix_ipv4(ip_str, &p); | |
1821 | if (ret == 0) { | |
1822 | vty_out(vty, "Malformed prefix\n"); | |
1823 | return CMD_WARNING_CONFIG_FAILED; | |
1824 | } | |
1825 | ||
1826 | distance = atoi(distance_str); | |
1827 | ||
1828 | /* Get OSPF distance node. */ | |
1829 | rn = route_node_get(ospf->distance_table, (struct prefix *)&p); | |
1830 | if (rn->info) { | |
1831 | odistance = rn->info; | |
1832 | route_unlock_node(rn); | |
1833 | } else { | |
1834 | odistance = ospf_distance_new(); | |
1835 | rn->info = odistance; | |
1836 | } | |
1837 | ||
1838 | /* Set distance value. */ | |
1839 | odistance->distance = distance; | |
1840 | ||
1841 | /* Reset access-list configuration. */ | |
1842 | if (odistance->access_list) { | |
1843 | free(odistance->access_list); | |
1844 | odistance->access_list = NULL; | |
1845 | } | |
1846 | if (access_list_str) | |
1847 | odistance->access_list = strdup(access_list_str); | |
1848 | ||
1849 | return CMD_SUCCESS; | |
718e3744 | 1850 | } |
1851 | ||
d62a17ae | 1852 | int ospf_distance_unset(struct vty *vty, struct ospf *ospf, |
1853 | const char *distance_str, const char *ip_str, | |
1854 | char const *access_list_str) | |
718e3744 | 1855 | { |
d62a17ae | 1856 | int ret; |
1857 | struct prefix_ipv4 p; | |
1858 | struct route_node *rn; | |
1859 | struct ospf_distance *odistance; | |
1860 | ||
1861 | ret = str2prefix_ipv4(ip_str, &p); | |
1862 | if (ret == 0) { | |
1863 | vty_out(vty, "Malformed prefix\n"); | |
1864 | return CMD_WARNING_CONFIG_FAILED; | |
1865 | } | |
1866 | ||
1867 | rn = route_node_lookup(ospf->distance_table, (struct prefix *)&p); | |
1868 | if (!rn) { | |
1869 | vty_out(vty, "Can't find specified prefix\n"); | |
1870 | return CMD_WARNING_CONFIG_FAILED; | |
1871 | } | |
1872 | ||
1873 | odistance = rn->info; | |
1874 | ||
1875 | if (odistance->access_list) | |
1876 | free(odistance->access_list); | |
1877 | ospf_distance_free(odistance); | |
1878 | ||
1879 | rn->info = NULL; | |
1880 | route_unlock_node(rn); | |
1881 | route_unlock_node(rn); | |
1882 | ||
1883 | return CMD_SUCCESS; | |
718e3744 | 1884 | } |
1885 | ||
d62a17ae | 1886 | void ospf_distance_reset(struct ospf *ospf) |
718e3744 | 1887 | { |
d62a17ae | 1888 | struct route_node *rn; |
1889 | struct ospf_distance *odistance; | |
1890 | ||
6ec9c6a8 DS |
1891 | for (rn = route_top(ospf->distance_table); rn; rn = route_next(rn)) { |
1892 | odistance = rn->info; | |
1893 | if (!odistance) | |
1894 | continue; | |
1895 | ||
1896 | if (odistance->access_list) | |
1897 | free(odistance->access_list); | |
1898 | ospf_distance_free(odistance); | |
1899 | rn->info = NULL; | |
1900 | route_unlock_node(rn); | |
1901 | } | |
718e3744 | 1902 | } |
1903 | ||
d7c0a89a QY |
1904 | uint8_t ospf_distance_apply(struct ospf *ospf, struct prefix_ipv4 *p, |
1905 | struct ospf_route * or) | |
718e3744 | 1906 | { |
718e3744 | 1907 | |
d62a17ae | 1908 | if (ospf == NULL) |
1909 | return 0; | |
718e3744 | 1910 | |
6ec9c6a8 DS |
1911 | if (ospf->distance_intra && or->path_type == OSPF_PATH_INTRA_AREA) |
1912 | return ospf->distance_intra; | |
718e3744 | 1913 | |
6ec9c6a8 DS |
1914 | if (ospf->distance_inter && or->path_type == OSPF_PATH_INTER_AREA) |
1915 | return ospf->distance_inter; | |
718e3744 | 1916 | |
6ec9c6a8 DS |
1917 | if (ospf->distance_external |
1918 | && (or->path_type == OSPF_PATH_TYPE1_EXTERNAL || | |
1919 | or->path_type == OSPF_PATH_TYPE2_EXTERNAL)) | |
1920 | return ospf->distance_external; | |
cf795c5d | 1921 | |
d62a17ae | 1922 | if (ospf->distance_all) |
1923 | return ospf->distance_all; | |
718e3744 | 1924 | |
d62a17ae | 1925 | return 0; |
718e3744 | 1926 | } |
1927 | ||
b5a8894d CS |
1928 | void ospf_zebra_vrf_register(struct ospf *ospf) |
1929 | { | |
1930 | if (!zclient || zclient->sock < 0 || !ospf) | |
1931 | return; | |
1932 | ||
6021c6c0 | 1933 | if (ospf->vrf_id != VRF_UNKNOWN) { |
b5a8894d | 1934 | if (IS_DEBUG_OSPF_EVENT) |
15569c58 | 1935 | zlog_debug("%s: Register VRF %s id %u", __func__, |
b5a8894d CS |
1936 | ospf_vrf_id_to_name(ospf->vrf_id), |
1937 | ospf->vrf_id); | |
1938 | zclient_send_reg_requests(zclient, ospf->vrf_id); | |
1939 | } | |
1940 | } | |
1941 | ||
1942 | void ospf_zebra_vrf_deregister(struct ospf *ospf) | |
1943 | { | |
1944 | if (!zclient || zclient->sock < 0 || !ospf) | |
1945 | return; | |
1946 | ||
1947 | if (ospf->vrf_id != VRF_DEFAULT && ospf->vrf_id != VRF_UNKNOWN) { | |
1948 | if (IS_DEBUG_OSPF_EVENT) | |
6021c6c0 | 1949 | zlog_debug("%s: De-Register VRF %s id %u to Zebra.", |
15569c58 | 1950 | __func__, ospf_vrf_id_to_name(ospf->vrf_id), |
b5a8894d CS |
1951 | ospf->vrf_id); |
1952 | /* Deregister for router-id, interfaces, | |
1953 | * redistributed routes. */ | |
1954 | zclient_send_dereg_requests(zclient, ospf->vrf_id); | |
1955 | } | |
1956 | } | |
b61264a8 | 1957 | |
d81b8e0e OD |
1958 | /* Label Manager Functions */ |
1959 | ||
1960 | /** | |
1961 | * Check if Label Manager is Ready or not. | |
1962 | * | |
1963 | * @return True if Label Manager is ready, False otherwise | |
1964 | */ | |
1965 | bool ospf_zebra_label_manager_ready(void) | |
1966 | { | |
1967 | return (zclient_sync->sock > 0); | |
1968 | } | |
1969 | ||
1970 | /** | |
1971 | * Request Label Range to the Label Manager. | |
1972 | * | |
1973 | * @param base base label of the label range to request | |
1974 | * @param chunk_size size of the label range to request | |
1975 | * | |
1976 | * @return 0 on success, -1 on failure | |
1977 | */ | |
1978 | int ospf_zebra_request_label_range(uint32_t base, uint32_t chunk_size) | |
1979 | { | |
1980 | int ret; | |
1981 | uint32_t start, end; | |
1982 | ||
1983 | if (zclient_sync->sock < 0) | |
1984 | return -1; | |
1985 | ||
1986 | ret = lm_get_label_chunk(zclient_sync, 0, base, chunk_size, &start, | |
1987 | &end); | |
1988 | if (ret < 0) { | |
1989 | zlog_warn("%s: error getting label range!", __func__); | |
1990 | return -1; | |
1991 | } | |
1992 | ||
1993 | return 0; | |
1994 | } | |
1995 | ||
1996 | /** | |
1997 | * Release Label Range to the Label Manager. | |
1998 | * | |
1999 | * @param start start of label range to release | |
2000 | * @param end end of label range to release | |
2001 | * | |
2002 | * @return 0 on success, -1 otherwise | |
2003 | */ | |
2004 | int ospf_zebra_release_label_range(uint32_t start, uint32_t end) | |
2005 | { | |
2006 | int ret; | |
2007 | ||
2008 | if (zclient_sync->sock < 0) | |
2009 | return -1; | |
2010 | ||
2011 | ret = lm_release_label_chunk(zclient_sync, start, end); | |
2012 | if (ret < 0) { | |
2013 | zlog_warn("%s: error releasing label range!", __func__); | |
2014 | return -1; | |
2015 | } | |
2016 | ||
2017 | return 0; | |
2018 | } | |
2019 | ||
2020 | /** | |
2021 | * Connect to the Label Manager. | |
2022 | * | |
2023 | * @return 0 on success, -1 otherwise | |
2024 | */ | |
2025 | int ospf_zebra_label_manager_connect(void) | |
2026 | { | |
2027 | /* Connect to label manager. */ | |
2028 | if (zclient_socket_connect(zclient_sync) < 0) { | |
2029 | zlog_warn("%s: failed connecting synchronous zclient!", | |
2030 | __func__); | |
2031 | return -1; | |
2032 | } | |
2033 | /* make socket non-blocking */ | |
2034 | set_nonblocking(zclient_sync->sock); | |
2035 | ||
2036 | /* Send hello to notify zebra this is a synchronous client */ | |
7cfdb485 | 2037 | if (zclient_send_hello(zclient_sync) == ZCLIENT_SEND_FAILURE) { |
d81b8e0e OD |
2038 | zlog_warn("%s: failed sending hello for synchronous zclient!", |
2039 | __func__); | |
2040 | close(zclient_sync->sock); | |
2041 | zclient_sync->sock = -1; | |
2042 | return -1; | |
2043 | } | |
2044 | ||
2045 | /* Connect to label manager */ | |
2046 | if (lm_label_manager_connect(zclient_sync, 0) != 0) { | |
2047 | zlog_warn("%s: failed connecting to label manager!", __func__); | |
2048 | if (zclient_sync->sock > 0) { | |
2049 | close(zclient_sync->sock); | |
2050 | zclient_sync->sock = -1; | |
2051 | } | |
2052 | return -1; | |
2053 | } | |
2054 | ||
2055 | osr_debug("SR (%s): Successfully connected to the Label Manager", | |
2056 | __func__); | |
2057 | ||
2058 | return 0; | |
2059 | } | |
2060 | ||
d62a17ae | 2061 | static void ospf_zebra_connected(struct zclient *zclient) |
7076bb2f | 2062 | { |
d62a17ae | 2063 | /* Send the client registration */ |
0945d5ed | 2064 | bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER, VRF_DEFAULT); |
2376c3f2 | 2065 | |
d62a17ae | 2066 | zclient_send_reg_requests(zclient, VRF_DEFAULT); |
7076bb2f FL |
2067 | } |
2068 | ||
132a782e | 2069 | /* |
2070 | * opaque messages between processes | |
2071 | */ | |
2072 | static int ospf_opaque_msg_handler(ZAPI_CALLBACK_ARGS) | |
2073 | { | |
2074 | struct stream *s; | |
2075 | struct zapi_opaque_msg info; | |
2076 | struct ldp_igp_sync_if_state state; | |
2077 | struct ldp_igp_sync_announce announce; | |
f173deb3 | 2078 | struct zapi_opaque_reg_info dst; |
132a782e | 2079 | int ret = 0; |
2080 | ||
2081 | s = zclient->ibuf; | |
2082 | ||
2083 | if (zclient_opaque_decode(s, &info) != 0) | |
2084 | return -1; | |
2085 | ||
2086 | switch (info.type) { | |
f173deb3 OD |
2087 | case LINK_STATE_SYNC: |
2088 | STREAM_GETC(s, dst.proto); | |
2089 | STREAM_GETW(s, dst.instance); | |
2090 | STREAM_GETL(s, dst.session_id); | |
2091 | dst.type = LINK_STATE_SYNC; | |
2092 | ret = ospf_te_sync_ted(dst); | |
2093 | break; | |
132a782e | 2094 | case LDP_IGP_SYNC_IF_STATE_UPDATE: |
2095 | STREAM_GET(&state, s, sizeof(state)); | |
2096 | ret = ospf_ldp_sync_state_update(state); | |
2097 | break; | |
2098 | case LDP_IGP_SYNC_ANNOUNCE_UPDATE: | |
2099 | STREAM_GET(&announce, s, sizeof(announce)); | |
2100 | ret = ospf_ldp_sync_announce_update(announce); | |
2101 | break; | |
132a782e | 2102 | default: |
2103 | break; | |
2104 | } | |
2105 | ||
2106 | stream_failure: | |
2107 | ||
2108 | return ret; | |
2109 | } | |
2110 | ||
cb135cc9 KS |
2111 | static int ospf_zebra_client_close_notify(ZAPI_CALLBACK_ARGS) |
2112 | { | |
2113 | int ret = 0; | |
2114 | ||
2115 | struct zapi_client_close_info info; | |
2116 | ||
2117 | if (zapi_client_close_notify_decode(zclient->ibuf, &info) < 0) | |
2118 | return -1; | |
2119 | ||
2120 | ospf_ldp_sync_handle_client_close(&info); | |
2121 | ||
2122 | return ret; | |
2123 | } | |
2124 | ||
d7c0a89a | 2125 | void ospf_zebra_init(struct thread_master *master, unsigned short instance) |
718e3744 | 2126 | { |
d62a17ae | 2127 | /* Allocate zebra structure. */ |
26f63a1e | 2128 | zclient = zclient_new(master, &zclient_options_default); |
342213ea | 2129 | zclient_init(zclient, ZEBRA_ROUTE_OSPF, instance, &ospfd_privs); |
d62a17ae | 2130 | zclient->zebra_connected = ospf_zebra_connected; |
2131 | zclient->router_id_update = ospf_router_id_update_zebra; | |
d62a17ae | 2132 | zclient->interface_address_add = ospf_interface_address_add; |
2133 | zclient->interface_address_delete = ospf_interface_address_delete; | |
2134 | zclient->interface_link_params = ospf_interface_link_params; | |
b5a8894d | 2135 | zclient->interface_vrf_update = ospf_interface_vrf_update; |
d62a17ae | 2136 | |
74489921 RW |
2137 | zclient->redistribute_route_add = ospf_zebra_read_route; |
2138 | zclient->redistribute_route_del = ospf_zebra_read_route; | |
d62a17ae | 2139 | |
d81b8e0e OD |
2140 | /* Initialize special zclient for synchronous message exchanges. */ |
2141 | struct zclient_options options = zclient_options_default; | |
2142 | options.synchronous = true; | |
2143 | zclient_sync = zclient_new(master, &options); | |
2144 | zclient_sync->sock = -1; | |
2145 | zclient_sync->redist_default = ZEBRA_ROUTE_OSPF; | |
2146 | zclient_sync->instance = instance; | |
2147 | /* | |
2148 | * session_id must be different from default value (0) to distinguish | |
2149 | * the asynchronous socket from the synchronous one | |
2150 | */ | |
2151 | zclient_sync->session_id = 1; | |
2152 | zclient_sync->privs = &ospfd_privs; | |
2153 | ||
d62a17ae | 2154 | access_list_add_hook(ospf_filter_update); |
2155 | access_list_delete_hook(ospf_filter_update); | |
2156 | prefix_list_add_hook(ospf_prefix_list_update); | |
2157 | prefix_list_delete_hook(ospf_prefix_list_update); | |
132a782e | 2158 | |
2159 | zclient->opaque_msg_handler = ospf_opaque_msg_handler; | |
cb135cc9 KS |
2160 | |
2161 | zclient->zebra_client_close_notify = ospf_zebra_client_close_notify; | |
718e3744 | 2162 | } |
aa530b62 JU |
2163 | |
2164 | void ospf_zebra_send_arp(const struct interface *ifp, const struct prefix *p) | |
2165 | { | |
2166 | zclient_send_neigh_discovery_req(zclient, ifp, p); | |
2167 | } |