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acddc0ed | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
718e3744 | 2 | /* |
3 | * Zebra connect library for OSPFd | |
4 | * Copyright (C) 1997, 98, 99, 2000 Kunihiro Ishiguro, Toshiaki Takada | |
718e3744 | 5 | */ |
6 | ||
7 | #include <zebra.h> | |
8 | ||
24a58196 | 9 | #include "frrevent.h" |
718e3744 | 10 | #include "command.h" |
11 | #include "network.h" | |
12 | #include "prefix.h" | |
13 | #include "routemap.h" | |
14 | #include "table.h" | |
15 | #include "stream.h" | |
16 | #include "memory.h" | |
17 | #include "zclient.h" | |
18 | #include "filter.h" | |
dd669bb0 | 19 | #include "plist.h" |
718e3744 | 20 | #include "log.h" |
5b5d66c4 | 21 | #include "route_opaque.h" |
2376c3f2 | 22 | #include "lib/bfd.h" |
5b30316e | 23 | #include "nexthop.h" |
718e3744 | 24 | |
25 | #include "ospfd/ospfd.h" | |
26 | #include "ospfd/ospf_interface.h" | |
27 | #include "ospfd/ospf_ism.h" | |
28 | #include "ospfd/ospf_asbr.h" | |
29 | #include "ospfd/ospf_asbr.h" | |
30 | #include "ospfd/ospf_abr.h" | |
31 | #include "ospfd/ospf_lsa.h" | |
32 | #include "ospfd/ospf_dump.h" | |
33 | #include "ospfd/ospf_route.h" | |
d5a5c8f0 DS |
34 | #include "ospfd/ospf_lsdb.h" |
35 | #include "ospfd/ospf_neighbor.h" | |
36 | #include "ospfd/ospf_nsm.h" | |
718e3744 | 37 | #include "ospfd/ospf_zebra.h" |
16f1b9ee | 38 | #include "ospfd/ospf_te.h" |
43e7abb5 | 39 | #include "ospfd/ospf_sr.h" |
132a782e | 40 | #include "ospfd/ospf_ldp_sync.h" |
718e3744 | 41 | |
bf8d3d6a DL |
42 | DEFINE_MTYPE_STATIC(OSPFD, OSPF_EXTERNAL, "OSPF External route table"); |
43 | DEFINE_MTYPE_STATIC(OSPFD, OSPF_REDISTRIBUTE, "OSPF Redistriute"); | |
dfac5d39 | 44 | |
1febb13d | 45 | |
718e3744 | 46 | /* Zebra structure to hold current status. */ |
47 | struct zclient *zclient = NULL; | |
d81b8e0e OD |
48 | /* and for the Synchronous connection to the Label Manager */ |
49 | static struct zclient *zclient_sync; | |
718e3744 | 50 | |
51 | /* For registering threads. */ | |
cd9d0537 | 52 | extern struct event_loop *master; |
18a6dce6 | 53 | |
54 | /* Router-id update message from zebra. */ | |
121f9dee | 55 | static int ospf_router_id_update_zebra(ZAPI_CALLBACK_ARGS) |
18a6dce6 | 56 | { |
b5a8894d | 57 | struct ospf *ospf = NULL; |
d62a17ae | 58 | struct prefix router_id; |
59 | zebra_router_id_update_read(zclient->ibuf, &router_id); | |
60 | ||
2dbe669b DA |
61 | if (IS_DEBUG_OSPF(zebra, ZEBRA_INTERFACE)) |
62 | zlog_debug("Zebra rcvd: router id update %pFX vrf %s id %u", | |
63 | &router_id, ospf_vrf_id_to_name(vrf_id), vrf_id); | |
d62a17ae | 64 | |
b5a8894d | 65 | ospf = ospf_lookup_by_vrf_id(vrf_id); |
d62a17ae | 66 | |
6021c6c0 CS |
67 | if (ospf != NULL) { |
68 | ospf->router_id_zebra = router_id.u.prefix4; | |
d62a17ae | 69 | ospf_router_id_update(ospf); |
6021c6c0 | 70 | } else { |
2dbe669b | 71 | if (IS_DEBUG_OSPF_EVENT) |
996c9314 | 72 | zlog_debug( |
2dbe669b | 73 | "%s: ospf instance not found for vrf %s id %u router_id %pFX", |
15569c58 | 74 | __func__, ospf_vrf_id_to_name(vrf_id), vrf_id, |
2dbe669b | 75 | &router_id); |
b5a8894d | 76 | } |
d62a17ae | 77 | return 0; |
18a6dce6 | 78 | } |
718e3744 | 79 | |
121f9dee | 80 | static int ospf_interface_address_add(ZAPI_CALLBACK_ARGS) |
718e3744 | 81 | { |
d62a17ae | 82 | struct connected *c; |
b5a8894d CS |
83 | struct ospf *ospf = NULL; |
84 | ||
718e3744 | 85 | |
121f9dee | 86 | c = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
718e3744 | 87 | |
d62a17ae | 88 | if (c == NULL) |
89 | return 0; | |
718e3744 | 90 | |
2dbe669b DA |
91 | if (IS_DEBUG_OSPF(zebra, ZEBRA_INTERFACE)) |
92 | zlog_debug("Zebra: interface %s address add %pFX vrf %s id %u", | |
93 | c->ifp->name, c->address, | |
94 | ospf_vrf_id_to_name(vrf_id), vrf_id); | |
7f643ebf | 95 | |
b5a8894d | 96 | ospf = ospf_lookup_by_vrf_id(vrf_id); |
43b8d1d8 CS |
97 | if (!ospf) |
98 | return 0; | |
b5a8894d CS |
99 | |
100 | ospf_if_update(ospf, c->ifp); | |
718e3744 | 101 | |
ef7bd2a3 | 102 | ospf_if_interface(c->ifp); |
718e3744 | 103 | |
d62a17ae | 104 | return 0; |
718e3744 | 105 | } |
106 | ||
121f9dee | 107 | static int ospf_interface_address_delete(ZAPI_CALLBACK_ARGS) |
718e3744 | 108 | { |
d62a17ae | 109 | struct connected *c; |
110 | struct interface *ifp; | |
111 | struct ospf_interface *oi; | |
112 | struct route_node *rn; | |
113 | struct prefix p; | |
114 | ||
121f9dee | 115 | c = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
d62a17ae | 116 | |
117 | if (c == NULL) | |
118 | return 0; | |
119 | ||
2dbe669b DA |
120 | if (IS_DEBUG_OSPF(zebra, ZEBRA_INTERFACE)) |
121 | zlog_debug("Zebra: interface %s address delete %pFX", | |
122 | c->ifp->name, c->address); | |
7f643ebf | 123 | |
d62a17ae | 124 | ifp = c->ifp; |
125 | p = *c->address; | |
936fbaef | 126 | p.prefixlen = IPV4_MAX_BITLEN; |
718e3744 | 127 | |
d62a17ae | 128 | rn = route_node_lookup(IF_OIFS(ifp), &p); |
129 | if (!rn) { | |
721c0857 | 130 | connected_free(&c); |
d62a17ae | 131 | return 0; |
132 | } | |
718e3744 | 133 | |
d62a17ae | 134 | assert(rn->info); |
135 | oi = rn->info; | |
136 | route_unlock_node(rn); | |
cf795c5d | 137 | |
d62a17ae | 138 | /* Call interface hook functions to clean up */ |
139 | ospf_if_free(oi); | |
cf795c5d | 140 | |
ef7bd2a3 | 141 | ospf_if_interface(c->ifp); |
718e3744 | 142 | |
721c0857 | 143 | connected_free(&c); |
718e3744 | 144 | |
d62a17ae | 145 | return 0; |
718e3744 | 146 | } |
72357f2b | 147 | |
121f9dee | 148 | static int ospf_interface_link_params(ZAPI_CALLBACK_ARGS) |
16f1b9ee | 149 | { |
d62a17ae | 150 | struct interface *ifp; |
0b4124c1 | 151 | bool changed = false; |
16f1b9ee | 152 | |
0b4124c1 | 153 | ifp = zebra_interface_link_params_read(zclient->ibuf, vrf_id, &changed); |
16f1b9ee | 154 | |
0b4124c1 | 155 | if (ifp == NULL || !changed) |
d62a17ae | 156 | return 0; |
16f1b9ee | 157 | |
d62a17ae | 158 | /* Update TE TLV */ |
159 | ospf_mpls_te_update_if(ifp); | |
16f1b9ee | 160 | |
d62a17ae | 161 | return 0; |
16f1b9ee OD |
162 | } |
163 | ||
b5a8894d | 164 | /* VRF update for an interface. */ |
121f9dee | 165 | static int ospf_interface_vrf_update(ZAPI_CALLBACK_ARGS) |
b5a8894d CS |
166 | { |
167 | struct interface *ifp = NULL; | |
168 | vrf_id_t new_vrf_id; | |
16f1b9ee | 169 | |
b5a8894d | 170 | ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id, |
996c9314 | 171 | &new_vrf_id); |
b5a8894d CS |
172 | if (!ifp) |
173 | return 0; | |
174 | ||
175 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
176 | zlog_debug( |
177 | "%s: Rx Interface %s VRF change vrf_id %u New vrf %s id %u", | |
15569c58 | 178 | __func__, ifp->name, vrf_id, |
996c9314 | 179 | ospf_vrf_id_to_name(new_vrf_id), new_vrf_id); |
b5a8894d CS |
180 | |
181 | /*if_update(ifp, ifp->name, strlen(ifp->name), new_vrf_id);*/ | |
a36898e7 | 182 | if_update_to_new_vrf(ifp, new_vrf_id); |
b5a8894d | 183 | |
996c9314 | 184 | return 0; |
b5a8894d CS |
185 | } |
186 | ||
7fd0729f G |
187 | /* Nexthop, ifindex, distance and metric information. */ |
188 | static void ospf_zebra_add_nexthop(struct ospf *ospf, struct ospf_path *path, | |
189 | struct zapi_route *api) | |
190 | { | |
191 | struct zapi_nexthop *api_nh; | |
192 | struct zapi_nexthop *api_nh_backup; | |
193 | ||
194 | /* TI-LFA backup path label stack comes first, if present */ | |
195 | if (path->srni.backup_label_stack) { | |
196 | api_nh_backup = &api->backup_nexthops[api->backup_nexthop_num]; | |
197 | api_nh_backup->vrf_id = ospf->vrf_id; | |
198 | ||
f026b24e | 199 | api_nh_backup->type = NEXTHOP_TYPE_IPV4; |
7fd0729f G |
200 | api_nh_backup->gate.ipv4 = path->srni.backup_nexthop; |
201 | ||
202 | api_nh_backup->label_num = | |
203 | path->srni.backup_label_stack->num_labels; | |
204 | memcpy(api_nh_backup->labels, | |
205 | path->srni.backup_label_stack->label, | |
206 | sizeof(mpls_label_t) * api_nh_backup->label_num); | |
207 | ||
208 | api->backup_nexthop_num++; | |
209 | } | |
210 | ||
211 | /* And here comes the primary nexthop */ | |
212 | api_nh = &api->nexthops[api->nexthop_num]; | |
213 | #ifdef HAVE_NETLINK | |
214 | if (path->unnumbered | |
215 | || (path->nexthop.s_addr != INADDR_ANY && path->ifindex != 0)) { | |
216 | #else /* HAVE_NETLINK */ | |
217 | if (path->nexthop.s_addr != INADDR_ANY && path->ifindex != 0) { | |
218 | #endif /* HAVE_NETLINK */ | |
219 | api_nh->gate.ipv4 = path->nexthop; | |
220 | api_nh->ifindex = path->ifindex; | |
221 | api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX; | |
222 | } else if (path->nexthop.s_addr != INADDR_ANY) { | |
223 | api_nh->gate.ipv4 = path->nexthop; | |
224 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
225 | } else { | |
226 | api_nh->ifindex = path->ifindex; | |
227 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
228 | } | |
229 | api_nh->vrf_id = ospf->vrf_id; | |
230 | ||
231 | /* Set TI-LFA backup nexthop info if present */ | |
232 | if (path->srni.backup_label_stack) { | |
233 | SET_FLAG(api->message, ZAPI_MESSAGE_BACKUP_NEXTHOPS); | |
234 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_HAS_BACKUP); | |
235 | ||
236 | /* Just care about a single TI-LFA backup path for now */ | |
237 | api_nh->backup_num = 1; | |
238 | api_nh->backup_idx[0] = api->backup_nexthop_num - 1; | |
239 | } | |
240 | ||
241 | api->nexthop_num++; | |
242 | } | |
243 | ||
5b5d66c4 RW |
244 | static void ospf_zebra_append_opaque_attr(struct ospf_route *or, |
245 | struct zapi_route *api) | |
246 | { | |
247 | struct ospf_zebra_opaque ospf_opaque = {}; | |
248 | ||
249 | /* OSPF path type */ | |
250 | snprintf(ospf_opaque.path_type, sizeof(ospf_opaque.path_type), "%s", | |
251 | ospf_path_type_name(or->path_type)); | |
252 | ||
253 | switch (or->path_type) { | |
254 | case OSPF_PATH_INTRA_AREA: | |
255 | case OSPF_PATH_INTER_AREA: | |
256 | /* OSPF area ID */ | |
257 | (void)inet_ntop(AF_INET, &or->u.std.area_id, | |
258 | ospf_opaque.area_id, | |
259 | sizeof(ospf_opaque.area_id)); | |
260 | break; | |
261 | case OSPF_PATH_TYPE1_EXTERNAL: | |
262 | case OSPF_PATH_TYPE2_EXTERNAL: | |
263 | /* OSPF route tag */ | |
264 | snprintf(ospf_opaque.tag, sizeof(ospf_opaque.tag), "%u", | |
265 | or->u.ext.tag); | |
266 | break; | |
267 | default: | |
268 | break; | |
269 | } | |
270 | ||
271 | SET_FLAG(api->message, ZAPI_MESSAGE_OPAQUE); | |
272 | api->opaque.length = sizeof(struct ospf_zebra_opaque); | |
273 | memcpy(api->opaque.data, &ospf_opaque, api->opaque.length); | |
274 | } | |
275 | ||
b5a8894d | 276 | void ospf_zebra_add(struct ospf *ospf, struct prefix_ipv4 *p, |
996c9314 | 277 | struct ospf_route * or) |
718e3744 | 278 | { |
5fef910e | 279 | struct zapi_route api; |
d7c0a89a | 280 | uint8_t distance; |
d62a17ae | 281 | struct ospf_path *path; |
282 | struct listnode *node; | |
d62a17ae | 283 | |
10514170 RW |
284 | if (ospf->gr_info.restart_in_progress) { |
285 | if (IS_DEBUG_OSPF_GR) | |
286 | zlog_debug( | |
287 | "Zebra: Graceful Restart in progress -- not installing %pFX", | |
288 | p); | |
289 | return; | |
290 | } | |
291 | ||
5fef910e | 292 | memset(&api, 0, sizeof(api)); |
b5a8894d | 293 | api.vrf_id = ospf->vrf_id; |
5fef910e RW |
294 | api.type = ZEBRA_ROUTE_OSPF; |
295 | api.instance = ospf->instance; | |
296 | api.safi = SAFI_UNICAST; | |
d00061ea | 297 | |
5fef910e RW |
298 | memcpy(&api.prefix, p, sizeof(*p)); |
299 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
d00061ea | 300 | |
5fef910e RW |
301 | /* Metric value. */ |
302 | SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); | |
303 | if (or->path_type == OSPF_PATH_TYPE1_EXTERNAL) | |
304 | api.metric = or->cost + or->u.ext.type2_cost; | |
305 | else if (or->path_type == OSPF_PATH_TYPE2_EXTERNAL) | |
306 | api.metric = or->u.ext.type2_cost; | |
307 | else | |
308 | api.metric = or->cost; | |
d00061ea RW |
309 | |
310 | /* Check if path type is ASE */ | |
311 | if (((or->path_type == OSPF_PATH_TYPE1_EXTERNAL) | |
312 | || (or->path_type == OSPF_PATH_TYPE2_EXTERNAL)) | |
5fef910e RW |
313 | && (or->u.ext.tag > 0) && (or->u.ext.tag <= ROUTE_TAG_MAX)) { |
314 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); | |
315 | api.tag = or->u.ext.tag; | |
316 | } | |
d00061ea | 317 | |
5fef910e | 318 | /* Distance value. */ |
b5a8894d | 319 | distance = ospf_distance_apply(ospf, p, or); |
5fef910e RW |
320 | if (distance) { |
321 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
322 | api.distance = distance; | |
323 | } | |
d00061ea | 324 | |
d00061ea | 325 | for (ALL_LIST_ELEMENTS_RO(or->paths, node, path)) { |
3d5b9855 | 326 | if (api.nexthop_num >= ospf->max_multipath) |
a74e593b | 327 | break; |
7fd0729f G |
328 | |
329 | ospf_zebra_add_nexthop(ospf, path, &api); | |
72357f2b | 330 | |
d00061ea | 331 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) { |
96065dc3 CS |
332 | struct interface *ifp; |
333 | ||
334 | ifp = if_lookup_by_index(path->ifindex, ospf->vrf_id); | |
4259ea81 | 335 | |
d00061ea | 336 | zlog_debug( |
2dbe669b DA |
337 | "Zebra: Route add %pFX nexthop %pI4, ifindex=%d %s", |
338 | p, &path->nexthop, path->ifindex, | |
339 | ifp ? ifp->name : " "); | |
d62a17ae | 340 | } |
d00061ea | 341 | } |
d62a17ae | 342 | |
5b5d66c4 RW |
343 | if (CHECK_FLAG(ospf->config, OSPF_SEND_EXTRA_DATA_TO_ZEBRA)) |
344 | ospf_zebra_append_opaque_attr(or, &api); | |
345 | ||
5fef910e | 346 | zclient_route_send(ZEBRA_ROUTE_ADD, zclient, &api); |
718e3744 | 347 | } |
348 | ||
b5a8894d | 349 | void ospf_zebra_delete(struct ospf *ospf, struct prefix_ipv4 *p, |
996c9314 | 350 | struct ospf_route * or) |
718e3744 | 351 | { |
5fef910e | 352 | struct zapi_route api; |
d62a17ae | 353 | |
10514170 RW |
354 | if (ospf->gr_info.restart_in_progress) { |
355 | if (IS_DEBUG_OSPF_GR) | |
356 | zlog_debug( | |
357 | "Zebra: Graceful Restart in progress -- not uninstalling %pFX", | |
358 | p); | |
359 | return; | |
360 | } | |
361 | ||
5fef910e | 362 | memset(&api, 0, sizeof(api)); |
b5a8894d | 363 | api.vrf_id = ospf->vrf_id; |
5fef910e RW |
364 | api.type = ZEBRA_ROUTE_OSPF; |
365 | api.instance = ospf->instance; | |
366 | api.safi = SAFI_UNICAST; | |
367 | memcpy(&api.prefix, p, sizeof(*p)); | |
d62a17ae | 368 | |
2dbe669b DA |
369 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
370 | zlog_debug("Zebra: Route delete %pFX", p); | |
d00061ea | 371 | |
5fef910e | 372 | zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api); |
718e3744 | 373 | } |
374 | ||
b5a8894d | 375 | void ospf_zebra_add_discard(struct ospf *ospf, struct prefix_ipv4 *p) |
718e3744 | 376 | { |
5fef910e | 377 | struct zapi_route api; |
d62a17ae | 378 | |
10514170 RW |
379 | if (ospf->gr_info.restart_in_progress) { |
380 | if (IS_DEBUG_OSPF_GR) | |
381 | zlog_debug( | |
382 | "Zebra: Graceful Restart in progress -- not installing %pFX", | |
383 | p); | |
384 | return; | |
385 | } | |
386 | ||
5fef910e | 387 | memset(&api, 0, sizeof(api)); |
b5a8894d | 388 | api.vrf_id = ospf->vrf_id; |
d00061ea RW |
389 | api.type = ZEBRA_ROUTE_OSPF; |
390 | api.instance = ospf->instance; | |
d00061ea | 391 | api.safi = SAFI_UNICAST; |
5fef910e | 392 | memcpy(&api.prefix, p, sizeof(*p)); |
09a484dd | 393 | zapi_route_set_blackhole(&api, BLACKHOLE_NULL); |
d00061ea | 394 | |
5fef910e | 395 | zclient_route_send(ZEBRA_ROUTE_ADD, zclient, &api); |
d00061ea | 396 | |
2dbe669b DA |
397 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
398 | zlog_debug("Zebra: Route add discard %pFX", p); | |
718e3744 | 399 | } |
400 | ||
b5a8894d | 401 | void ospf_zebra_delete_discard(struct ospf *ospf, struct prefix_ipv4 *p) |
718e3744 | 402 | { |
5fef910e | 403 | struct zapi_route api; |
d62a17ae | 404 | |
10514170 RW |
405 | if (ospf->gr_info.restart_in_progress) { |
406 | if (IS_DEBUG_OSPF_GR) | |
407 | zlog_debug( | |
408 | "Zebra: Graceful Restart in progress -- not uninstalling %pFX", | |
409 | p); | |
410 | return; | |
411 | } | |
412 | ||
5fef910e | 413 | memset(&api, 0, sizeof(api)); |
b5a8894d | 414 | api.vrf_id = ospf->vrf_id; |
d00061ea RW |
415 | api.type = ZEBRA_ROUTE_OSPF; |
416 | api.instance = ospf->instance; | |
d00061ea | 417 | api.safi = SAFI_UNICAST; |
5fef910e | 418 | memcpy(&api.prefix, p, sizeof(*p)); |
09a484dd | 419 | zapi_route_set_blackhole(&api, BLACKHOLE_NULL); |
d00061ea | 420 | |
5fef910e | 421 | zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api); |
d00061ea | 422 | |
2dbe669b DA |
423 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
424 | zlog_debug("Zebra: Route delete discard %pFX", p); | |
718e3744 | 425 | } |
426 | ||
d7c0a89a QY |
427 | struct ospf_external *ospf_external_lookup(struct ospf *ospf, uint8_t type, |
428 | unsigned short instance) | |
7c8ff89e | 429 | { |
d62a17ae | 430 | struct list *ext_list; |
431 | struct listnode *node; | |
432 | struct ospf_external *ext; | |
7c8ff89e | 433 | |
de1ac5fd | 434 | ext_list = ospf->external[type]; |
d62a17ae | 435 | if (!ext_list) |
436 | return (NULL); | |
7c8ff89e | 437 | |
d62a17ae | 438 | for (ALL_LIST_ELEMENTS_RO(ext_list, node, ext)) |
439 | if (ext->instance == instance) | |
440 | return ext; | |
7c8ff89e | 441 | |
d62a17ae | 442 | return NULL; |
7c8ff89e DS |
443 | } |
444 | ||
d7c0a89a QY |
445 | struct ospf_external *ospf_external_add(struct ospf *ospf, uint8_t type, |
446 | unsigned short instance) | |
7c8ff89e | 447 | { |
d62a17ae | 448 | struct list *ext_list; |
449 | struct ospf_external *ext; | |
7c8ff89e | 450 | |
de1ac5fd | 451 | ext = ospf_external_lookup(ospf, type, instance); |
d62a17ae | 452 | if (ext) |
453 | return ext; | |
7c8ff89e | 454 | |
de1ac5fd CS |
455 | if (!ospf->external[type]) |
456 | ospf->external[type] = list_new(); | |
7c8ff89e | 457 | |
de1ac5fd | 458 | ext_list = ospf->external[type]; |
9f5dc319 | 459 | ext = XCALLOC(MTYPE_OSPF_EXTERNAL, sizeof(struct ospf_external)); |
d62a17ae | 460 | ext->instance = instance; |
461 | EXTERNAL_INFO(ext) = route_table_init(); | |
7c8ff89e | 462 | |
d62a17ae | 463 | listnode_add(ext_list, ext); |
7c8ff89e | 464 | |
d62a17ae | 465 | return ext; |
7c8ff89e DS |
466 | } |
467 | ||
1febb13d S |
468 | /* |
469 | * Walk all the ei received from zebra for a route type and apply | |
470 | * default route-map. | |
471 | */ | |
472 | bool ospf_external_default_routemap_apply_walk(struct ospf *ospf, | |
473 | struct list *ext_list, | |
474 | struct external_info *default_ei) | |
475 | { | |
476 | struct listnode *node; | |
477 | struct ospf_external *ext; | |
478 | struct route_node *rn; | |
479 | struct external_info *ei = NULL; | |
480 | int ret = 0; | |
481 | ||
482 | for (ALL_LIST_ELEMENTS_RO(ext_list, node, ext)) { | |
483 | if (!ext->external_info) | |
484 | continue; | |
485 | ||
486 | for (rn = route_top(ext->external_info); rn; | |
487 | rn = route_next(rn)) { | |
488 | ei = rn->info; | |
489 | if (!ei) | |
490 | continue; | |
491 | ret = ospf_external_info_apply_default_routemap( | |
492 | ospf, ei, default_ei); | |
493 | if (ret) | |
494 | break; | |
495 | } | |
496 | } | |
497 | ||
498 | if (ret && ei) { | |
499 | if (IS_DEBUG_OSPF_DEFAULT_INFO) | |
96b663a3 MS |
500 | zlog_debug("Default originate routemap permit ei: %pI4", |
501 | &ei->p.prefix); | |
1febb13d S |
502 | return true; |
503 | } | |
504 | ||
505 | return false; | |
506 | } | |
507 | ||
508 | /* | |
509 | * Function to originate or flush default after applying | |
510 | * route-map on all ei. | |
511 | */ | |
e6685141 | 512 | static void ospf_external_lsa_default_routemap_timer(struct event *thread) |
1febb13d S |
513 | { |
514 | struct list *ext_list; | |
e16d030c | 515 | struct ospf *ospf = EVENT_ARG(thread); |
1febb13d S |
516 | struct prefix_ipv4 p; |
517 | int type; | |
518 | int ret = 0; | |
519 | struct ospf_lsa *lsa; | |
520 | struct external_info *default_ei; | |
521 | ||
522 | p.family = AF_INET; | |
523 | p.prefixlen = 0; | |
524 | p.prefix.s_addr = INADDR_ANY; | |
525 | ||
526 | /* Get the default extenal info. */ | |
527 | default_ei = ospf_external_info_lookup(ospf, DEFAULT_ROUTE, | |
528 | ospf->instance, &p); | |
529 | if (!default_ei) { | |
530 | /* Nothing to be done here. */ | |
531 | if (IS_DEBUG_OSPF_DEFAULT_INFO) | |
532 | zlog_debug("Default originate info not present"); | |
cc9f21da | 533 | return; |
1febb13d S |
534 | } |
535 | ||
536 | /* For all the ei apply route-map */ | |
537 | for (type = 0; type <= ZEBRA_ROUTE_MAX; type++) { | |
538 | ext_list = ospf->external[type]; | |
539 | if (!ext_list || type == ZEBRA_ROUTE_OSPF) | |
540 | continue; | |
541 | ||
542 | ret = ospf_external_default_routemap_apply_walk(ospf, ext_list, | |
543 | default_ei); | |
544 | if (ret) | |
545 | break; | |
546 | } | |
547 | ||
548 | /* Get the default LSA. */ | |
549 | lsa = ospf_external_info_find_lsa(ospf, &p); | |
550 | ||
551 | /* If permit then originate default. */ | |
552 | if (ret && !lsa) | |
553 | ospf_external_lsa_originate(ospf, default_ei); | |
554 | else if (ret && lsa && IS_LSA_MAXAGE(lsa)) | |
63f0e941 | 555 | ospf_external_lsa_refresh(ospf, lsa, default_ei, true, false); |
1febb13d S |
556 | else if (!ret && lsa) |
557 | ospf_external_lsa_flush(ospf, DEFAULT_ROUTE, &default_ei->p, 0); | |
1febb13d S |
558 | } |
559 | ||
560 | ||
d7c0a89a | 561 | void ospf_external_del(struct ospf *ospf, uint8_t type, unsigned short instance) |
7c8ff89e | 562 | { |
d62a17ae | 563 | struct ospf_external *ext; |
564 | ||
de1ac5fd | 565 | ext = ospf_external_lookup(ospf, type, instance); |
d62a17ae | 566 | |
567 | if (ext) { | |
568 | if (EXTERNAL_INFO(ext)) | |
569 | route_table_finish(EXTERNAL_INFO(ext)); | |
570 | ||
de1ac5fd CS |
571 | listnode_delete(ospf->external[type], ext); |
572 | ||
573 | if (!ospf->external[type]->count) | |
6a154c88 | 574 | list_delete(&ospf->external[type]); |
de1ac5fd | 575 | |
7f586094 | 576 | XFREE(MTYPE_OSPF_EXTERNAL, ext); |
d62a17ae | 577 | } |
1febb13d S |
578 | |
579 | /* | |
580 | * Check if default needs to be flushed too. | |
581 | */ | |
907a2395 DS |
582 | event_add_event(master, ospf_external_lsa_default_routemap_timer, ospf, |
583 | 0, &ospf->t_default_routemap_timer); | |
7c8ff89e DS |
584 | } |
585 | ||
43e7abb5 OD |
586 | /* Update NHLFE for Prefix SID */ |
587 | void ospf_zebra_update_prefix_sid(const struct sr_prefix *srp) | |
588 | { | |
589 | struct zapi_labels zl; | |
590 | struct zapi_nexthop *znh; | |
4ea5353b | 591 | struct zapi_nexthop *znh_backup; |
43e7abb5 OD |
592 | struct listnode *node; |
593 | struct ospf_path *path; | |
594 | ||
43e7abb5 OD |
595 | /* Prepare message. */ |
596 | memset(&zl, 0, sizeof(zl)); | |
597 | zl.type = ZEBRA_LSP_OSPF_SR; | |
598 | zl.local_label = srp->label_in; | |
599 | ||
600 | switch (srp->type) { | |
601 | case LOCAL_SID: | |
602 | /* Set Label for local Prefix */ | |
603 | znh = &zl.nexthops[zl.nexthop_num++]; | |
604 | znh->type = NEXTHOP_TYPE_IFINDEX; | |
605 | znh->ifindex = srp->nhlfe.ifindex; | |
606 | znh->label_num = 1; | |
607 | znh->labels[0] = srp->nhlfe.label_out; | |
56981b40 OD |
608 | |
609 | osr_debug("SR (%s): Configure Prefix %pFX with labels %u/%u", | |
610 | __func__, (struct prefix *)&srp->prefv4, | |
611 | srp->label_in, srp->nhlfe.label_out); | |
612 | ||
43e7abb5 OD |
613 | break; |
614 | ||
615 | case PREF_SID: | |
616 | /* Update route in the RIB too. */ | |
617 | SET_FLAG(zl.message, ZAPI_LABELS_FTN); | |
618 | zl.route.prefix.u.prefix4 = srp->prefv4.prefix; | |
619 | zl.route.prefix.prefixlen = srp->prefv4.prefixlen; | |
620 | zl.route.prefix.family = srp->prefv4.family; | |
621 | zl.route.type = ZEBRA_ROUTE_OSPF; | |
622 | zl.route.instance = 0; | |
623 | ||
624 | /* Check that SRP contains at least one valid path */ | |
625 | if (srp->route == NULL) { | |
626 | return; | |
627 | } | |
56981b40 OD |
628 | |
629 | osr_debug("SR (%s): Configure Prefix %pFX with", | |
630 | __func__, (struct prefix *)&srp->prefv4); | |
631 | ||
43e7abb5 OD |
632 | for (ALL_LIST_ELEMENTS_RO(srp->route->paths, node, path)) { |
633 | if (path->srni.label_out == MPLS_INVALID_LABEL) | |
634 | continue; | |
635 | ||
636 | if (zl.nexthop_num >= MULTIPATH_NUM) | |
637 | break; | |
638 | ||
f026b24e G |
639 | /* |
640 | * TI-LFA backup path label stack comes first, if | |
641 | * present. | |
642 | */ | |
4ea5353b G |
643 | if (path->srni.backup_label_stack) { |
644 | znh_backup = &zl.backup_nexthops | |
645 | [zl.backup_nexthop_num++]; | |
f026b24e | 646 | znh_backup->type = NEXTHOP_TYPE_IPV4; |
4ea5353b G |
647 | znh_backup->gate.ipv4 = |
648 | path->srni.backup_nexthop; | |
649 | ||
4ea5353b G |
650 | memcpy(znh_backup->labels, |
651 | path->srni.backup_label_stack->label, | |
652 | sizeof(mpls_label_t) | |
f026b24e G |
653 | * path->srni.backup_label_stack |
654 | ->num_labels); | |
655 | ||
656 | znh_backup->label_num = | |
657 | path->srni.backup_label_stack | |
658 | ->num_labels; | |
659 | if (path->srni.label_out | |
660 | != MPLS_LABEL_IPV4_EXPLICIT_NULL | |
661 | && path->srni.label_out | |
662 | != MPLS_LABEL_IMPLICIT_NULL) | |
663 | znh_backup->labels | |
664 | [znh_backup->label_num++] = | |
665 | path->srni.label_out; | |
4ea5353b G |
666 | } |
667 | ||
43e7abb5 OD |
668 | znh = &zl.nexthops[zl.nexthop_num++]; |
669 | znh->type = NEXTHOP_TYPE_IPV4_IFINDEX; | |
670 | znh->gate.ipv4 = path->nexthop; | |
671 | znh->ifindex = path->ifindex; | |
672 | znh->label_num = 1; | |
673 | znh->labels[0] = path->srni.label_out; | |
4ea5353b | 674 | |
56981b40 | 675 | osr_debug(" |- labels %u/%u", srp->label_in, |
270e66a2 | 676 | path->srni.label_out); |
56981b40 | 677 | |
4ea5353b G |
678 | /* Set TI-LFA backup nexthop info if present */ |
679 | if (path->srni.backup_label_stack) { | |
680 | SET_FLAG(zl.message, ZAPI_LABELS_HAS_BACKUPS); | |
681 | SET_FLAG(znh->flags, | |
682 | ZAPI_NEXTHOP_FLAG_HAS_BACKUP); | |
683 | ||
684 | /* Just care about a single TI-LFA backup path | |
685 | * for now */ | |
686 | znh->backup_num = 1; | |
687 | znh->backup_idx[0] = zl.backup_nexthop_num - 1; | |
688 | } | |
43e7abb5 OD |
689 | } |
690 | break; | |
5d8c8d0b DS |
691 | case ADJ_SID: |
692 | case LAN_ADJ_SID: | |
43e7abb5 OD |
693 | return; |
694 | } | |
695 | ||
696 | /* Finally, send message to zebra. */ | |
697 | (void)zebra_send_mpls_labels(zclient, ZEBRA_MPLS_LABELS_REPLACE, &zl); | |
698 | } | |
699 | ||
700 | /* Remove NHLFE for Prefix-SID */ | |
701 | void ospf_zebra_delete_prefix_sid(const struct sr_prefix *srp) | |
702 | { | |
703 | struct zapi_labels zl; | |
704 | ||
705 | osr_debug("SR (%s): Delete Labels %u for Prefix %pFX", __func__, | |
706 | srp->label_in, (struct prefix *)&srp->prefv4); | |
707 | ||
708 | /* Prepare message. */ | |
709 | memset(&zl, 0, sizeof(zl)); | |
710 | zl.type = ZEBRA_LSP_OSPF_SR; | |
711 | zl.local_label = srp->label_in; | |
712 | ||
713 | if (srp->type == PREF_SID) { | |
714 | /* Update route in the RIB too */ | |
715 | SET_FLAG(zl.message, ZAPI_LABELS_FTN); | |
716 | zl.route.prefix.u.prefix4 = srp->prefv4.prefix; | |
717 | zl.route.prefix.prefixlen = srp->prefv4.prefixlen; | |
718 | zl.route.prefix.family = srp->prefv4.family; | |
719 | zl.route.type = ZEBRA_ROUTE_OSPF; | |
720 | zl.route.instance = 0; | |
721 | } | |
722 | ||
723 | /* Send message to zebra. */ | |
724 | (void)zebra_send_mpls_labels(zclient, ZEBRA_MPLS_LABELS_DELETE, &zl); | |
725 | } | |
726 | ||
727 | /* Send MPLS Label entry to Zebra for installation or deletion */ | |
728 | void ospf_zebra_send_adjacency_sid(int cmd, struct sr_nhlfe nhlfe) | |
729 | { | |
730 | struct zapi_labels zl; | |
731 | struct zapi_nexthop *znh; | |
732 | ||
733 | osr_debug("SR (%s): %s Labels %u/%u for Adjacency via %u", __func__, | |
734 | cmd == ZEBRA_MPLS_LABELS_ADD ? "Add" : "Delete", | |
735 | nhlfe.label_in, nhlfe.label_out, nhlfe.ifindex); | |
736 | ||
737 | memset(&zl, 0, sizeof(zl)); | |
738 | zl.type = ZEBRA_LSP_OSPF_SR; | |
739 | zl.local_label = nhlfe.label_in; | |
740 | zl.nexthop_num = 1; | |
741 | znh = &zl.nexthops[0]; | |
742 | znh->type = NEXTHOP_TYPE_IPV4_IFINDEX; | |
743 | znh->gate.ipv4 = nhlfe.nexthop; | |
744 | znh->ifindex = nhlfe.ifindex; | |
745 | znh->label_num = 1; | |
746 | znh->labels[0] = nhlfe.label_out; | |
747 | ||
748 | (void)zebra_send_mpls_labels(zclient, cmd, &zl); | |
749 | } | |
750 | ||
d7c0a89a QY |
751 | struct ospf_redist *ospf_redist_lookup(struct ospf *ospf, uint8_t type, |
752 | unsigned short instance) | |
7c8ff89e | 753 | { |
d62a17ae | 754 | struct list *red_list; |
755 | struct listnode *node; | |
756 | struct ospf_redist *red; | |
7c8ff89e | 757 | |
d62a17ae | 758 | red_list = ospf->redist[type]; |
759 | if (!red_list) | |
760 | return (NULL); | |
7c8ff89e | 761 | |
d62a17ae | 762 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) |
763 | if (red->instance == instance) | |
764 | return red; | |
7c8ff89e | 765 | |
d62a17ae | 766 | return NULL; |
7c8ff89e DS |
767 | } |
768 | ||
d7c0a89a QY |
769 | struct ospf_redist *ospf_redist_add(struct ospf *ospf, uint8_t type, |
770 | unsigned short instance) | |
7c8ff89e | 771 | { |
d62a17ae | 772 | struct list *red_list; |
773 | struct ospf_redist *red; | |
7c8ff89e | 774 | |
d62a17ae | 775 | red = ospf_redist_lookup(ospf, type, instance); |
776 | if (red) | |
777 | return red; | |
7c8ff89e | 778 | |
d62a17ae | 779 | if (!ospf->redist[type]) |
780 | ospf->redist[type] = list_new(); | |
7c8ff89e | 781 | |
d62a17ae | 782 | red_list = ospf->redist[type]; |
9f5dc319 | 783 | red = XCALLOC(MTYPE_OSPF_REDISTRIBUTE, sizeof(struct ospf_redist)); |
d62a17ae | 784 | red->instance = instance; |
785 | red->dmetric.type = -1; | |
786 | red->dmetric.value = -1; | |
1fb93326 | 787 | ROUTEMAP_NAME(red) = NULL; |
788 | ROUTEMAP(red) = NULL; | |
7c8ff89e | 789 | |
d62a17ae | 790 | listnode_add(red_list, red); |
7c8ff89e | 791 | |
d62a17ae | 792 | return red; |
7c8ff89e DS |
793 | } |
794 | ||
d7c0a89a | 795 | void ospf_redist_del(struct ospf *ospf, uint8_t type, unsigned short instance) |
7c8ff89e | 796 | { |
d62a17ae | 797 | struct ospf_redist *red; |
798 | ||
799 | red = ospf_redist_lookup(ospf, type, instance); | |
800 | ||
801 | if (red) { | |
802 | listnode_delete(ospf->redist[type], red); | |
803 | if (!ospf->redist[type]->count) { | |
6a154c88 | 804 | list_delete(&ospf->redist[type]); |
d62a17ae | 805 | } |
97a69b31 | 806 | ospf_routemap_unset(red); |
7f586094 | 807 | XFREE(MTYPE_OSPF_REDISTRIBUTE, red); |
d62a17ae | 808 | } |
7c8ff89e DS |
809 | } |
810 | ||
811 | ||
d7c0a89a QY |
812 | int ospf_is_type_redistributed(struct ospf *ospf, int type, |
813 | unsigned short instance) | |
718e3744 | 814 | { |
d62a17ae | 815 | return (DEFAULT_ROUTE_TYPE(type) |
49db7a7b | 816 | ? vrf_bitmap_check(zclient->default_information[AFI_IP], |
b5a8894d | 817 | ospf->vrf_id) |
d62a17ae | 818 | : ((instance |
819 | && redist_check_instance( | |
b259f5af DS |
820 | &zclient->mi_redist[AFI_IP][type], |
821 | instance)) | |
d62a17ae | 822 | || (!instance |
823 | && vrf_bitmap_check( | |
b259f5af DS |
824 | zclient->redist[AFI_IP][type], |
825 | ospf->vrf_id)))); | |
718e3744 | 826 | } |
827 | ||
7bced643 IR |
828 | int ospf_redistribute_update(struct ospf *ospf, struct ospf_redist *red, |
829 | int type, unsigned short instance, int mtype, | |
830 | int mvalue) | |
718e3744 | 831 | { |
d62a17ae | 832 | int force = 0; |
162dbe41 | 833 | |
7bced643 IR |
834 | if (mtype != red->dmetric.type) { |
835 | red->dmetric.type = mtype; | |
836 | force = LSA_REFRESH_FORCE; | |
837 | } | |
838 | if (mvalue != red->dmetric.value) { | |
839 | red->dmetric.value = mvalue; | |
840 | force = LSA_REFRESH_FORCE; | |
162dbe41 | 841 | } |
842 | ||
7bced643 | 843 | ospf_external_lsa_refresh_type(ospf, type, instance, force); |
d62a17ae | 844 | |
7bced643 IR |
845 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
846 | zlog_debug( | |
847 | "Redistribute[%s][%d]: Refresh Type[%d], Metric[%d]", | |
848 | ospf_redist_string(type), instance, | |
849 | metric_type(ospf, type, instance), | |
850 | metric_value(ospf, type, instance)); | |
d62a17ae | 851 | |
7bced643 IR |
852 | return CMD_SUCCESS; |
853 | } | |
d62a17ae | 854 | |
7bced643 IR |
855 | int ospf_redistribute_set(struct ospf *ospf, struct ospf_redist *red, int type, |
856 | unsigned short instance, int mtype, int mvalue) | |
857 | { | |
d62a17ae | 858 | red->dmetric.type = mtype; |
859 | red->dmetric.value = mvalue; | |
860 | ||
de1ac5fd | 861 | ospf_external_add(ospf, type, instance); |
d62a17ae | 862 | |
863 | zclient_redistribute(ZEBRA_REDISTRIBUTE_ADD, zclient, AFI_IP, type, | |
b5a8894d | 864 | instance, ospf->vrf_id); |
d62a17ae | 865 | |
866 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) | |
996c9314 LB |
867 | zlog_debug( |
868 | "Redistribute[%s][%d] vrf id %u: Start Type[%d], Metric[%d]", | |
869 | ospf_redist_string(type), instance, ospf->vrf_id, | |
870 | metric_type(ospf, type, instance), | |
871 | metric_value(ospf, type, instance)); | |
d62a17ae | 872 | |
873 | ospf_asbr_status_update(ospf, ++ospf->redistribute); | |
874 | ||
875 | return CMD_SUCCESS; | |
718e3744 | 876 | } |
877 | ||
d7c0a89a QY |
878 | int ospf_redistribute_unset(struct ospf *ospf, int type, |
879 | unsigned short instance) | |
718e3744 | 880 | { |
d62a17ae | 881 | if (type == zclient->redist_default && instance == zclient->instance) |
882 | return CMD_SUCCESS; | |
718e3744 | 883 | |
d62a17ae | 884 | zclient_redistribute(ZEBRA_REDISTRIBUTE_DELETE, zclient, AFI_IP, type, |
b5a8894d | 885 | instance, ospf->vrf_id); |
cf795c5d | 886 | |
d62a17ae | 887 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
b5a8894d CS |
888 | zlog_debug("Redistribute[%s][%d] vrf id %u: Stop", |
889 | ospf_redist_string(type), instance, ospf->vrf_id); | |
718e3744 | 890 | |
d62a17ae | 891 | /* Remove the routes from OSPF table. */ |
892 | ospf_redistribute_withdraw(ospf, type, instance); | |
7c8ff89e | 893 | |
de1ac5fd | 894 | ospf_external_del(ospf, type, instance); |
718e3744 | 895 | |
d62a17ae | 896 | ospf_asbr_status_update(ospf, --ospf->redistribute); |
718e3744 | 897 | |
d62a17ae | 898 | return CMD_SUCCESS; |
718e3744 | 899 | } |
900 | ||
d62a17ae | 901 | int ospf_redistribute_default_set(struct ospf *ospf, int originate, int mtype, |
902 | int mvalue) | |
718e3744 | 903 | { |
1fb93326 | 904 | struct prefix_ipv4 p; |
905 | struct in_addr nexthop; | |
906 | int cur_originate = ospf->default_originate; | |
d5eac1e0 | 907 | const char *type_str = NULL; |
1fb93326 | 908 | |
975a328e | 909 | nexthop.s_addr = INADDR_ANY; |
1fb93326 | 910 | p.family = AF_INET; |
975a328e | 911 | p.prefix.s_addr = INADDR_ANY; |
1fb93326 | 912 | p.prefixlen = 0; |
913 | ||
d62a17ae | 914 | ospf->default_originate = originate; |
020709f9 | 915 | |
d5eac1e0 | 916 | if (cur_originate == originate) { |
1fb93326 | 917 | /* Refresh the lsa since metric might different */ |
d62a17ae | 918 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
919 | zlog_debug( | |
920 | "Redistribute[%s]: Refresh Type[%d], Metric[%d]", | |
921 | ospf_redist_string(DEFAULT_ROUTE), | |
922 | metric_type(ospf, DEFAULT_ROUTE, 0), | |
923 | metric_value(ospf, DEFAULT_ROUTE, 0)); | |
718e3744 | 924 | |
1fb93326 | 925 | ospf_external_lsa_refresh_default(ospf); |
d5eac1e0 | 926 | return CMD_SUCCESS; |
1fb93326 | 927 | } |
718e3744 | 928 | |
d5eac1e0 DL |
929 | switch (cur_originate) { |
930 | case DEFAULT_ORIGINATE_NONE: | |
931 | break; | |
932 | case DEFAULT_ORIGINATE_ZEBRA: | |
1fb93326 | 933 | zclient_redistribute_default(ZEBRA_REDISTRIBUTE_DEFAULT_DELETE, |
49db7a7b | 934 | zclient, AFI_IP, ospf->vrf_id); |
d5eac1e0 DL |
935 | ospf->redistribute--; |
936 | break; | |
937 | case DEFAULT_ORIGINATE_ALWAYS: | |
938 | ospf_external_info_delete(ospf, DEFAULT_ROUTE, 0, p); | |
939 | ospf_external_del(ospf, DEFAULT_ROUTE, 0); | |
940 | ospf->redistribute--; | |
941 | break; | |
1fb93326 | 942 | } |
718e3744 | 943 | |
d5eac1e0 DL |
944 | switch (originate) { |
945 | case DEFAULT_ORIGINATE_NONE: | |
946 | type_str = "none"; | |
947 | break; | |
948 | case DEFAULT_ORIGINATE_ZEBRA: | |
949 | type_str = "normal"; | |
950 | ospf->redistribute++; | |
951 | zclient_redistribute_default(ZEBRA_REDISTRIBUTE_DEFAULT_ADD, | |
952 | zclient, AFI_IP, ospf->vrf_id); | |
953 | break; | |
954 | case DEFAULT_ORIGINATE_ALWAYS: | |
955 | type_str = "always"; | |
956 | ospf->redistribute++; | |
957 | ospf_external_add(ospf, DEFAULT_ROUTE, 0); | |
958 | ospf_external_info_add(ospf, DEFAULT_ROUTE, 0, p, 0, nexthop, | |
959 | 0); | |
960 | break; | |
961 | } | |
718e3744 | 962 | |
d62a17ae | 963 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
d5eac1e0 DL |
964 | zlog_debug("Redistribute[DEFAULT]: %s Type[%d], Metric[%d]", |
965 | type_str, | |
966 | metric_type(ospf, DEFAULT_ROUTE, 0), | |
967 | metric_value(ospf, DEFAULT_ROUTE, 0)); | |
718e3744 | 968 | |
d5eac1e0 DL |
969 | ospf_external_lsa_refresh_default(ospf); |
970 | ospf_asbr_status_update(ospf, ospf->redistribute); | |
d62a17ae | 971 | return CMD_SUCCESS; |
718e3744 | 972 | } |
973 | ||
d62a17ae | 974 | static int ospf_external_lsa_originate_check(struct ospf *ospf, |
975 | struct external_info *ei) | |
718e3744 | 976 | { |
d62a17ae | 977 | /* If prefix is multicast, then do not originate LSA. */ |
978 | if (IN_MULTICAST(htonl(ei->p.prefix.s_addr))) { | |
979 | zlog_info( | |
96b663a3 MS |
980 | "LSA[Type5:%pI4]: Not originate AS-external-LSA, Prefix belongs multicast", |
981 | &ei->p.prefix); | |
d62a17ae | 982 | return 0; |
983 | } | |
984 | ||
985 | /* Take care of default-originate. */ | |
1fe59b44 | 986 | if (is_default_prefix4(&ei->p)) |
d62a17ae | 987 | if (ospf->default_originate == DEFAULT_ORIGINATE_NONE) { |
988 | zlog_info( | |
3efd0893 | 989 | "LSA[Type5:0.0.0.0]: Not originate AS-external-LSA for default"); |
d62a17ae | 990 | return 0; |
991 | } | |
992 | ||
993 | return 1; | |
718e3744 | 994 | } |
995 | ||
996 | /* If connected prefix is OSPF enable interface, then do not announce. */ | |
d62a17ae | 997 | int ospf_distribute_check_connected(struct ospf *ospf, struct external_info *ei) |
718e3744 | 998 | { |
d62a17ae | 999 | struct listnode *node; |
1000 | struct ospf_interface *oi; | |
718e3744 | 1001 | |
718e3744 | 1002 | |
d62a17ae | 1003 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) |
1004 | if (prefix_match(oi->address, (struct prefix *)&ei->p)) | |
1005 | return 0; | |
1006 | return 1; | |
718e3744 | 1007 | } |
1008 | ||
1febb13d S |
1009 | |
1010 | /* Apply default route-map on ei received. */ | |
1011 | int ospf_external_info_apply_default_routemap(struct ospf *ospf, | |
1012 | struct external_info *ei, | |
1013 | struct external_info *default_ei) | |
1014 | { | |
1015 | struct ospf_redist *red; | |
1016 | int type = default_ei->type; | |
1017 | struct prefix_ipv4 *p = &ei->p; | |
1018 | struct route_map_set_values save_values; | |
1019 | ||
1020 | ||
1021 | if (!ospf_external_lsa_originate_check(ospf, default_ei)) | |
1022 | return 0; | |
1023 | ||
1024 | save_values = default_ei->route_map_set; | |
1025 | ospf_reset_route_map_set_values(&default_ei->route_map_set); | |
1026 | ||
1027 | /* apply route-map if needed */ | |
1028 | red = ospf_redist_lookup(ospf, type, ospf->instance); | |
1029 | if (red && ROUTEMAP_NAME(red)) { | |
1030 | route_map_result_t ret; | |
1031 | ||
1782514f | 1032 | ret = route_map_apply(ROUTEMAP(red), (struct prefix *)p, ei); |
1febb13d S |
1033 | |
1034 | if (ret == RMAP_DENYMATCH) { | |
1035 | ei->route_map_set = save_values; | |
1036 | return 0; | |
1037 | } | |
1038 | } | |
1039 | ||
1040 | return 1; | |
1041 | } | |
1042 | ||
1043 | ||
1044 | /* | |
1045 | * Default originated is based on route-map condition then | |
1046 | * apply route-map on received external info. Originate or | |
1047 | * flush based on route-map condition. | |
1048 | */ | |
1049 | static bool ospf_external_lsa_default_routemap_apply(struct ospf *ospf, | |
1050 | struct external_info *ei, | |
1051 | int cmd) | |
1052 | { | |
1053 | struct external_info *default_ei; | |
1054 | struct prefix_ipv4 p; | |
1055 | struct ospf_lsa *lsa; | |
1056 | int ret; | |
1057 | ||
1058 | p.family = AF_INET; | |
1059 | p.prefixlen = 0; | |
1060 | p.prefix.s_addr = INADDR_ANY; | |
1061 | ||
1062 | ||
1063 | /* Get the default extenal info. */ | |
1064 | default_ei = ospf_external_info_lookup(ospf, DEFAULT_ROUTE, | |
1065 | ospf->instance, &p); | |
1066 | if (!default_ei) { | |
1067 | /* Nothing to be done here. */ | |
1068 | return false; | |
1069 | } | |
1070 | ||
1071 | if (IS_DEBUG_OSPF_DEFAULT_INFO) | |
96b663a3 MS |
1072 | zlog_debug("Apply default originate routemap on ei: %pI4 cmd: %d", |
1073 | &ei->p.prefix, cmd); | |
1febb13d S |
1074 | |
1075 | ret = ospf_external_info_apply_default_routemap(ospf, ei, default_ei); | |
1076 | ||
1077 | /* If deny then nothing to be done both in add and del case. */ | |
1078 | if (!ret) { | |
1079 | if (IS_DEBUG_OSPF_DEFAULT_INFO) | |
96b663a3 MS |
1080 | zlog_debug("Default originte routemap deny for ei: %pI4", |
1081 | &ei->p.prefix); | |
1febb13d S |
1082 | return false; |
1083 | } | |
1084 | ||
1085 | /* Get the default LSA. */ | |
1086 | lsa = ospf_external_info_find_lsa(ospf, &p); | |
1087 | ||
1088 | /* If this is add route and permit then ooriginate default. */ | |
1089 | if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD) { | |
1090 | /* If permit and default already advertise then return. */ | |
1091 | if (lsa && !IS_LSA_MAXAGE(lsa)) { | |
1092 | if (IS_DEBUG_OSPF_DEFAULT_INFO) | |
02c671af | 1093 | zlog_debug("Default lsa already originated"); |
1febb13d S |
1094 | return true; |
1095 | } | |
1096 | ||
1097 | if (IS_DEBUG_OSPF_DEFAULT_INFO) | |
1098 | zlog_debug("Originating/Refreshing default lsa"); | |
1099 | ||
1100 | if (lsa && IS_LSA_MAXAGE(lsa)) | |
1101 | /* Refresh lsa.*/ | |
63f0e941 | 1102 | ospf_external_lsa_refresh(ospf, lsa, default_ei, true, |
1103 | false); | |
1febb13d S |
1104 | else |
1105 | /* If permit and default not advertised then advertise. | |
1106 | */ | |
1107 | ospf_external_lsa_originate(ospf, default_ei); | |
1108 | ||
1109 | } else if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_DEL) { | |
1110 | /* If deny and lsa is not originated then nothing to be done.*/ | |
1111 | if (!lsa) { | |
1112 | if (IS_DEBUG_OSPF_DEFAULT_INFO) | |
1113 | zlog_debug( | |
1114 | "Default lsa not originated, not flushing"); | |
1115 | return true; | |
1116 | } | |
1117 | ||
1118 | if (IS_DEBUG_OSPF_DEFAULT_INFO) | |
1119 | zlog_debug( | |
96b663a3 MS |
1120 | "Running default route-map again as ei: %pI4 deleted", |
1121 | &ei->p.prefix); | |
1febb13d S |
1122 | /* |
1123 | * if this route delete was permitted then we need to check | |
1124 | * there are any other external info which can still trigger | |
1125 | * default route origination else flush it. | |
1126 | */ | |
907a2395 DS |
1127 | event_add_event(master, |
1128 | ospf_external_lsa_default_routemap_timer, ospf, | |
1129 | 0, &ospf->t_default_routemap_timer); | |
1febb13d S |
1130 | } |
1131 | ||
1132 | return true; | |
1133 | } | |
1134 | ||
718e3744 | 1135 | /* return 1 if external LSA must be originated, 0 otherwise */ |
d62a17ae | 1136 | int ospf_redistribute_check(struct ospf *ospf, struct external_info *ei, |
1137 | int *changed) | |
718e3744 | 1138 | { |
d62a17ae | 1139 | struct route_map_set_values save_values; |
1140 | struct prefix_ipv4 *p = &ei->p; | |
1141 | struct ospf_redist *red; | |
1fe59b44 RZ |
1142 | uint8_t type = is_default_prefix4(&ei->p) ? DEFAULT_ROUTE : ei->type; |
1143 | unsigned short instance = is_default_prefix4(&ei->p) ? 0 : ei->instance; | |
87e6e11e | 1144 | route_tag_t saved_tag = 0; |
d62a17ae | 1145 | |
1febb13d S |
1146 | /* Default is handled differently. */ |
1147 | if (type == DEFAULT_ROUTE) | |
1148 | return 1; | |
1149 | ||
d62a17ae | 1150 | if (changed) |
1151 | *changed = 0; | |
1152 | ||
1153 | if (!ospf_external_lsa_originate_check(ospf, ei)) | |
1154 | return 0; | |
1155 | ||
1156 | /* Take care connected route. */ | |
1157 | if (type == ZEBRA_ROUTE_CONNECT | |
1158 | && !ospf_distribute_check_connected(ospf, ei)) | |
1159 | return 0; | |
1160 | ||
1161 | if (!DEFAULT_ROUTE_TYPE(type) && DISTRIBUTE_NAME(ospf, type)) | |
1162 | /* distirbute-list exists, but access-list may not? */ | |
1163 | if (DISTRIBUTE_LIST(ospf, type)) | |
1164 | if (access_list_apply(DISTRIBUTE_LIST(ospf, type), p) | |
1165 | == FILTER_DENY) { | |
2dbe669b | 1166 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
d62a17ae | 1167 | zlog_debug( |
2dbe669b DA |
1168 | "Redistribute[%s]: %pFX filtered by distribute-list.", |
1169 | ospf_redist_string(type), p); | |
d62a17ae | 1170 | return 0; |
1171 | } | |
1172 | ||
1173 | save_values = ei->route_map_set; | |
1174 | ospf_reset_route_map_set_values(&ei->route_map_set); | |
04e94d39 | 1175 | |
87e6e11e | 1176 | saved_tag = ei->tag; |
04e94d39 | 1177 | /* Resetting with original route tag */ |
1178 | ei->tag = ei->orig_tag; | |
d62a17ae | 1179 | |
1180 | /* apply route-map if needed */ | |
1181 | red = ospf_redist_lookup(ospf, type, instance); | |
1182 | if (red && ROUTEMAP_NAME(red)) { | |
b68885f9 | 1183 | route_map_result_t ret; |
d62a17ae | 1184 | |
1782514f | 1185 | ret = route_map_apply(ROUTEMAP(red), (struct prefix *)p, ei); |
d62a17ae | 1186 | |
1187 | if (ret == RMAP_DENYMATCH) { | |
1188 | ei->route_map_set = save_values; | |
2dbe669b | 1189 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
d62a17ae | 1190 | zlog_debug( |
2dbe669b DA |
1191 | "Redistribute[%s]: %pFX filtered by route-map.", |
1192 | ospf_redist_string(type), p); | |
d62a17ae | 1193 | return 0; |
1194 | } | |
1195 | ||
1196 | /* check if 'route-map set' changed something */ | |
87e6e11e | 1197 | if (changed) { |
d62a17ae | 1198 | *changed = !ospf_route_map_set_compare( |
1199 | &ei->route_map_set, &save_values); | |
87e6e11e | 1200 | |
1201 | /* check if tag is modified */ | |
1202 | *changed |= (saved_tag != ei->tag); | |
1203 | } | |
d62a17ae | 1204 | } |
1205 | ||
1206 | return 1; | |
718e3744 | 1207 | } |
1208 | ||
1209 | /* OSPF route-map set for redistribution */ | |
d62a17ae | 1210 | void ospf_routemap_set(struct ospf_redist *red, const char *name) |
718e3744 | 1211 | { |
93d836e6 | 1212 | if (ROUTEMAP_NAME(red)) { |
1213 | route_map_counter_decrement(ROUTEMAP(red)); | |
d62a17ae | 1214 | free(ROUTEMAP_NAME(red)); |
93d836e6 | 1215 | } |
718e3744 | 1216 | |
d62a17ae | 1217 | ROUTEMAP_NAME(red) = strdup(name); |
1218 | ROUTEMAP(red) = route_map_lookup_by_name(name); | |
93d836e6 | 1219 | route_map_counter_increment(ROUTEMAP(red)); |
718e3744 | 1220 | } |
1221 | ||
d62a17ae | 1222 | void ospf_routemap_unset(struct ospf_redist *red) |
718e3744 | 1223 | { |
93d836e6 | 1224 | if (ROUTEMAP_NAME(red)) { |
1225 | route_map_counter_decrement(ROUTEMAP(red)); | |
d62a17ae | 1226 | free(ROUTEMAP_NAME(red)); |
93d836e6 | 1227 | } |
718e3744 | 1228 | |
d62a17ae | 1229 | ROUTEMAP_NAME(red) = NULL; |
1230 | ROUTEMAP(red) = NULL; | |
718e3744 | 1231 | } |
1232 | ||
10514170 RW |
1233 | static int ospf_zebra_gr_update(struct ospf *ospf, int command, |
1234 | uint32_t stale_time) | |
1235 | { | |
1236 | struct zapi_cap api; | |
1237 | ||
1238 | if (!zclient || zclient->sock < 0 || !ospf) | |
1239 | return 1; | |
1240 | ||
6006b807 | 1241 | memset(&api, 0, sizeof(api)); |
10514170 RW |
1242 | api.cap = command; |
1243 | api.stale_removal_time = stale_time; | |
1244 | api.vrf_id = ospf->vrf_id; | |
1245 | ||
1246 | (void)zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, | |
1247 | &api); | |
1248 | ||
1249 | return 0; | |
1250 | } | |
1251 | ||
1252 | int ospf_zebra_gr_enable(struct ospf *ospf, uint32_t stale_time) | |
1253 | { | |
1254 | return ospf_zebra_gr_update(ospf, ZEBRA_CLIENT_GR_CAPABILITIES, | |
1255 | stale_time); | |
1256 | } | |
1257 | ||
1258 | int ospf_zebra_gr_disable(struct ospf *ospf) | |
1259 | { | |
1260 | return ospf_zebra_gr_update(ospf, ZEBRA_CLIENT_GR_DISABLE, 0); | |
1261 | } | |
1262 | ||
718e3744 | 1263 | /* Zebra route add and delete treatment. */ |
121f9dee | 1264 | static int ospf_zebra_read_route(ZAPI_CALLBACK_ARGS) |
718e3744 | 1265 | { |
74489921 RW |
1266 | struct zapi_route api; |
1267 | struct prefix_ipv4 p; | |
5e43330e | 1268 | struct prefix pgen; |
d62a17ae | 1269 | unsigned long ifindex; |
1270 | struct in_addr nexthop; | |
d62a17ae | 1271 | struct external_info *ei; |
1272 | struct ospf *ospf; | |
1273 | int i; | |
1fb93326 | 1274 | uint8_t rt_type; |
d62a17ae | 1275 | |
b5a8894d | 1276 | ospf = ospf_lookup_by_vrf_id(vrf_id); |
74489921 RW |
1277 | if (ospf == NULL) |
1278 | return 0; | |
d62a17ae | 1279 | |
74489921 RW |
1280 | if (zapi_route_decode(zclient->ibuf, &api) < 0) |
1281 | return -1; | |
d62a17ae | 1282 | |
74489921 RW |
1283 | ifindex = api.nexthops[0].ifindex; |
1284 | nexthop = api.nexthops[0].gate.ipv4; | |
1fb93326 | 1285 | rt_type = api.type; |
d62a17ae | 1286 | |
74489921 | 1287 | memcpy(&p, &api.prefix, sizeof(p)); |
d62a17ae | 1288 | if (IPV4_NET127(ntohl(p.prefix.s_addr))) |
1289 | return 0; | |
1290 | ||
5e43330e FD |
1291 | pgen.family = p.family; |
1292 | pgen.prefixlen = p.prefixlen; | |
1293 | pgen.u.prefix4 = p.prefix; | |
1294 | ||
1fb93326 | 1295 | /* Re-destributed route is default route. |
1296 | * Here, route type is used as 'ZEBRA_ROUTE_KERNEL' for | |
1297 | * updating ex-info. But in resetting (no default-info | |
1298 | * originate)ZEBRA_ROUTE_MAX is used to delete the ex-info. | |
1299 | * Resolved this inconsistency by maintaining same route type. | |
1300 | */ | |
5e43330e | 1301 | if ((is_default_prefix(&pgen)) && (api.type != ZEBRA_ROUTE_OSPF)) |
1fb93326 | 1302 | rt_type = DEFAULT_ROUTE; |
1303 | ||
2dbe669b DA |
1304 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
1305 | zlog_debug("%s: cmd %s from client %s: vrf_id %d, p %pFX", | |
ae4080c5 | 1306 | __func__, zserv_command_string(cmd), |
2dbe669b | 1307 | zebra_route_string(api.type), vrf_id, &api.prefix); |
5c780bc9 | 1308 | |
121f9dee | 1309 | if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD) { |
d62a17ae | 1310 | /* XXX|HACK|TODO|FIXME: |
09a484dd DL |
1311 | * Maybe we should ignore reject/blackhole routes? Testing |
1312 | * shows that there is no problems though and this is only way | |
1313 | * to "summarize" routes in ASBR at the moment. Maybe we need | |
1314 | * just a better generalised solution for these types? | |
d62a17ae | 1315 | */ |
1316 | ||
74489921 | 1317 | /* Protocol tag overwrites all other tag value sent by zebra */ |
1fb93326 | 1318 | if (ospf->dtag[rt_type] > 0) |
1319 | api.tag = ospf->dtag[rt_type]; | |
d62a17ae | 1320 | |
1321 | /* | |
1322 | * Given zebra sends update for a prefix via ADD message, it | |
1323 | * should | |
1324 | * be considered as an implicit DEL for that prefix with other | |
1325 | * source | |
1326 | * types. | |
1327 | */ | |
1fb93326 | 1328 | for (i = 0; i <= ZEBRA_ROUTE_MAX; i++) |
1329 | if (i != rt_type) | |
996c9314 LB |
1330 | ospf_external_info_delete(ospf, i, api.instance, |
1331 | p); | |
d62a17ae | 1332 | |
1fb93326 | 1333 | ei = ospf_external_info_add(ospf, rt_type, api.instance, p, |
de1ac5fd | 1334 | ifindex, nexthop, api.tag); |
d62a17ae | 1335 | if (ei == NULL) { |
1336 | /* Nothing has changed, so nothing to do; return */ | |
1337 | return 0; | |
1338 | } | |
975a328e | 1339 | if (ospf->router_id.s_addr != INADDR_ANY) { |
1fe59b44 | 1340 | if (is_default_prefix4(&p)) |
6ec9c6a8 DS |
1341 | ospf_external_lsa_refresh_default(ospf); |
1342 | else { | |
1343 | struct ospf_external_aggr_rt *aggr; | |
1344 | struct as_external_lsa *al; | |
1345 | struct ospf_lsa *lsa = NULL; | |
1346 | struct in_addr mask; | |
1347 | ||
1348 | aggr = ospf_external_aggr_match(ospf, &ei->p); | |
1349 | ||
1350 | if (aggr) { | |
1351 | /* Check the AS-external-LSA | |
1352 | * should be originated. | |
1353 | */ | |
1354 | if (!ospf_redistribute_check(ospf, ei, | |
1355 | NULL)) | |
1356 | return 0; | |
1357 | ||
1358 | if (IS_DEBUG_OSPF(lsa, EXTNL_LSA_AGGR)) | |
1359 | zlog_debug( | |
1360 | "%s: Send Aggreate LSA (%pI4/%d)", | |
1361 | __func__, | |
1362 | &aggr->p.prefix, | |
1363 | aggr->p.prefixlen); | |
1364 | ||
1365 | ospf_originate_summary_lsa(ospf, aggr, | |
1366 | ei); | |
1367 | ||
1368 | /* Handling the case where the | |
1369 | * external route prefix | |
1370 | * and aggegate prefix is same | |
1461559c | 1371 | * If same don't flush the |
6ec9c6a8 DS |
1372 | * originated |
1373 | * external LSA. | |
1374 | */ | |
1375 | if (prefix_same( | |
1376 | (struct prefix *)&aggr->p, | |
1377 | (struct prefix *)&ei->p)) | |
1378 | return 0; | |
1379 | ||
1380 | lsa = ospf_external_info_find_lsa( | |
1381 | ospf, &ei->p); | |
1382 | ||
1383 | if (lsa) { | |
1384 | al = (struct as_external_lsa *) | |
1385 | lsa->data; | |
1386 | masklen2ip(ei->p.prefixlen, | |
1387 | &mask); | |
1388 | ||
1389 | if (mask.s_addr | |
1390 | != al->mask.s_addr) | |
1391 | return 0; | |
960417cf | 1392 | |
6ec9c6a8 DS |
1393 | ospf_external_lsa_flush( |
1394 | ospf, ei->type, &ei->p, | |
1395 | 0); | |
1396 | } | |
1397 | } else { | |
1398 | struct ospf_lsa *current; | |
1399 | ||
1400 | current = ospf_external_info_find_lsa( | |
1401 | ospf, &ei->p); | |
1402 | if (!current) { | |
1403 | /* Check the | |
1404 | * AS-external-LSA | |
1405 | * should be | |
1406 | * originated. | |
960417cf | 1407 | */ |
1408 | if (!ospf_redistribute_check( | |
1409 | ospf, ei, NULL)) | |
1410 | return 0; | |
d62a17ae | 1411 | |
6ec9c6a8 DS |
1412 | ospf_external_lsa_originate( |
1413 | ospf, ei); | |
1414 | } else { | |
d62a17ae | 1415 | if (IS_DEBUG_OSPF( |
6ec9c6a8 DS |
1416 | zebra, |
1417 | ZEBRA_REDISTRIBUTE)) | |
d62a17ae | 1418 | zlog_debug( |
6ec9c6a8 | 1419 | "%s: %pI4 refreshing LSA", |
960417cf | 1420 | __func__, |
6ec9c6a8 DS |
1421 | &p.prefix); |
1422 | ospf_external_lsa_refresh( | |
1423 | ospf, current, ei, | |
1424 | LSA_REFRESH_FORCE, | |
1425 | false); | |
d62a17ae | 1426 | } |
1427 | } | |
1428 | } | |
1429 | } | |
1febb13d S |
1430 | |
1431 | /* | |
1432 | * Check if default-information originate is | |
1433 | * with some routemap prefix/access list match. | |
1434 | */ | |
1435 | ospf_external_lsa_default_routemap_apply(ospf, ei, cmd); | |
1436 | ||
6ec9c6a8 | 1437 | } else { /* if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_DEL) */ |
960417cf | 1438 | struct ospf_external_aggr_rt *aggr; |
1439 | ||
1febb13d | 1440 | ei = ospf_external_info_lookup(ospf, rt_type, api.instance, &p); |
960417cf | 1441 | if (ei == NULL) |
1442 | return 0; | |
6ec9c6a8 DS |
1443 | |
1444 | /* | |
1445 | * Check if default-information originate i | |
1446 | * with some routemap prefix/access list match. | |
1447 | * Apply before ei is deleted. | |
1448 | */ | |
1449 | ospf_external_lsa_default_routemap_apply(ospf, ei, cmd); | |
1febb13d | 1450 | |
960417cf | 1451 | aggr = ospf_external_aggr_match(ospf, &ei->p); |
1452 | ||
1453 | if (aggr && (ei->aggr_route == aggr)) { | |
1454 | ospf_unlink_ei_from_aggr(ospf, aggr, ei); | |
1455 | ||
1456 | ospf_external_info_delete(ospf, rt_type, api.instance, | |
1457 | p); | |
1458 | } else { | |
1459 | ospf_external_info_delete(ospf, rt_type, api.instance, | |
1460 | p); | |
1461 | ||
1fe59b44 | 1462 | if (is_default_prefix4(&p)) |
960417cf | 1463 | ospf_external_lsa_refresh_default(ospf); |
1464 | else | |
1465 | ospf_external_lsa_flush(ospf, rt_type, &p, | |
1466 | ifindex /*, nexthop */); | |
1467 | } | |
5048fe14 | 1468 | } |
d62a17ae | 1469 | |
1470 | return 0; | |
718e3744 | 1471 | } |
6b0655a2 | 1472 | |
cf795c5d | 1473 | |
d62a17ae | 1474 | int ospf_distribute_list_out_set(struct ospf *ospf, int type, const char *name) |
718e3744 | 1475 | { |
d62a17ae | 1476 | /* Lookup access-list for distribute-list. */ |
1477 | DISTRIBUTE_LIST(ospf, type) = access_list_lookup(AFI_IP, name); | |
718e3744 | 1478 | |
d62a17ae | 1479 | /* Clear previous distribute-name. */ |
1480 | if (DISTRIBUTE_NAME(ospf, type)) | |
1481 | free(DISTRIBUTE_NAME(ospf, type)); | |
718e3744 | 1482 | |
d62a17ae | 1483 | /* Set distribute-name. */ |
1484 | DISTRIBUTE_NAME(ospf, type) = strdup(name); | |
718e3744 | 1485 | |
d62a17ae | 1486 | /* If access-list have been set, schedule update timer. */ |
1487 | if (DISTRIBUTE_LIST(ospf, type)) | |
1488 | ospf_distribute_list_update(ospf, type, 0); | |
718e3744 | 1489 | |
d62a17ae | 1490 | return CMD_SUCCESS; |
718e3744 | 1491 | } |
1492 | ||
d62a17ae | 1493 | int ospf_distribute_list_out_unset(struct ospf *ospf, int type, |
1494 | const char *name) | |
718e3744 | 1495 | { |
d62a17ae | 1496 | /* Schedule update timer. */ |
1497 | if (DISTRIBUTE_LIST(ospf, type)) | |
1498 | ospf_distribute_list_update(ospf, type, 0); | |
718e3744 | 1499 | |
d62a17ae | 1500 | /* Unset distribute-list. */ |
1501 | DISTRIBUTE_LIST(ospf, type) = NULL; | |
718e3744 | 1502 | |
d62a17ae | 1503 | /* Clear distribute-name. */ |
1504 | if (DISTRIBUTE_NAME(ospf, type)) | |
1505 | free(DISTRIBUTE_NAME(ospf, type)); | |
cf795c5d | 1506 | |
d62a17ae | 1507 | DISTRIBUTE_NAME(ospf, type) = NULL; |
718e3744 | 1508 | |
d62a17ae | 1509 | return CMD_SUCCESS; |
718e3744 | 1510 | } |
1511 | ||
1512 | /* distribute-list update timer. */ | |
e6685141 | 1513 | static void ospf_distribute_list_update_timer(struct event *thread) |
718e3744 | 1514 | { |
d62a17ae | 1515 | struct route_node *rn; |
1516 | struct external_info *ei; | |
1517 | struct route_table *rt; | |
1518 | struct ospf_lsa *lsa; | |
dcaed63d | 1519 | int type, default_refresh = 0; |
e16d030c | 1520 | struct ospf *ospf = EVENT_ARG(thread); |
d62a17ae | 1521 | |
d62a17ae | 1522 | if (ospf == NULL) |
cc9f21da | 1523 | return; |
d62a17ae | 1524 | |
1525 | ospf->t_distribute_update = NULL; | |
1526 | ||
1527 | zlog_info("Zebra[Redistribute]: distribute-list update timer fired!"); | |
1528 | ||
b5a8894d | 1529 | if (IS_DEBUG_OSPF_EVENT) { |
dcaed63d IR |
1530 | zlog_debug("%s: ospf distribute-list update vrf %s id %d", |
1531 | __func__, ospf_vrf_id_to_name(ospf->vrf_id), | |
1532 | ospf->vrf_id); | |
b5a8894d CS |
1533 | } |
1534 | ||
d62a17ae | 1535 | /* foreach all external info. */ |
1536 | for (type = 0; type <= ZEBRA_ROUTE_MAX; type++) { | |
1537 | struct list *ext_list; | |
1538 | struct listnode *node; | |
1539 | struct ospf_external *ext; | |
1540 | ||
de1ac5fd | 1541 | ext_list = ospf->external[type]; |
d62a17ae | 1542 | if (!ext_list) |
1543 | continue; | |
1544 | ||
1545 | for (ALL_LIST_ELEMENTS_RO(ext_list, node, ext)) { | |
1546 | rt = ext->external_info; | |
1547 | if (!rt) | |
1548 | continue; | |
6ec9c6a8 DS |
1549 | for (rn = route_top(rt); rn; rn = route_next(rn)) { |
1550 | ei = rn->info; | |
1551 | if (!ei) | |
1552 | continue; | |
1553 | ||
1fe59b44 | 1554 | if (is_default_prefix4(&ei->p)) |
6ec9c6a8 DS |
1555 | default_refresh = 1; |
1556 | else { | |
1557 | struct ospf_external_aggr_rt *aggr; | |
1558 | ||
1559 | aggr = ospf_external_aggr_match(ospf, | |
1560 | &ei->p); | |
1561 | if (aggr) { | |
1562 | /* Check the | |
1563 | * AS-external-LSA | |
1564 | * should be originated. | |
1565 | */ | |
1566 | if (!ospf_redistribute_check( | |
1567 | ospf, ei, NULL)) { | |
1568 | ||
1569 | ospf_unlink_ei_from_aggr( | |
960417cf | 1570 | ospf, aggr, ei); |
6ec9c6a8 | 1571 | continue; |
960417cf | 1572 | } |
6ec9c6a8 DS |
1573 | |
1574 | if (IS_DEBUG_OSPF( | |
1575 | lsa, | |
1576 | EXTNL_LSA_AGGR)) | |
1577 | zlog_debug( | |
1578 | "%s: Send Aggregate LSA (%pI4/%d)", | |
1579 | __func__, | |
1580 | &aggr->p.prefix, | |
1581 | aggr->p.prefixlen); | |
1582 | ||
1583 | /* Originate Aggregate | |
1584 | * LSA | |
1585 | */ | |
1586 | ospf_originate_summary_lsa( | |
1587 | ospf, aggr, ei); | |
1588 | } else if ( | |
1589 | (lsa = ospf_external_info_find_lsa( | |
1590 | ospf, &ei->p))) { | |
1591 | int force = | |
1592 | LSA_REFRESH_IF_CHANGED; | |
1593 | /* If this is a MaxAge | |
1594 | * LSA, we need to | |
1595 | * force refresh it | |
1596 | * because distribute | |
1597 | * settings might have | |
1598 | * changed and now, | |
1599 | * this LSA needs to be | |
1600 | * originated, not be | |
1601 | * removed. | |
1602 | * If we don't force | |
1603 | * refresh it, it will | |
1604 | * remain a MaxAge LSA | |
1605 | * because it will look | |
1606 | * like it hasn't | |
1607 | * changed. Neighbors | |
1608 | * will not receive | |
1609 | * updates for this LSA. | |
1610 | */ | |
1611 | if (IS_LSA_MAXAGE(lsa)) | |
1612 | force = LSA_REFRESH_FORCE; | |
1613 | ||
1614 | ospf_external_lsa_refresh( | |
1615 | ospf, lsa, ei, force, | |
1616 | false); | |
1617 | } else { | |
1618 | if (!ospf_redistribute_check( | |
1619 | ospf, ei, NULL)) | |
1620 | continue; | |
1621 | ospf_external_lsa_originate( | |
1622 | ospf, ei); | |
960417cf | 1623 | } |
d62a17ae | 1624 | } |
6ec9c6a8 | 1625 | } |
d62a17ae | 1626 | } |
1627 | } | |
1628 | if (default_refresh) | |
1629 | ospf_external_lsa_refresh_default(ospf); | |
718e3744 | 1630 | } |
1631 | ||
718e3744 | 1632 | /* Update distribute-list and set timer to apply access-list. */ |
d7c0a89a QY |
1633 | void ospf_distribute_list_update(struct ospf *ospf, int type, |
1634 | unsigned short instance) | |
718e3744 | 1635 | { |
d62a17ae | 1636 | struct ospf_external *ext; |
b5a8894d | 1637 | |
d62a17ae | 1638 | /* External info does not exist. */ |
de1ac5fd | 1639 | ext = ospf_external_lookup(ospf, type, instance); |
dcaed63d | 1640 | if (!ext || !EXTERNAL_INFO(ext)) |
d62a17ae | 1641 | return; |
1642 | ||
dcaed63d | 1643 | /* Set timer. If timer is already started, this call does nothing. */ |
907a2395 DS |
1644 | event_add_timer_msec(master, ospf_distribute_list_update_timer, ospf, |
1645 | ospf->min_ls_interval, &ospf->t_distribute_update); | |
718e3744 | 1646 | } |
1647 | ||
1648 | /* If access-list is updated, apply some check. */ | |
d62a17ae | 1649 | static void ospf_filter_update(struct access_list *access) |
718e3744 | 1650 | { |
d62a17ae | 1651 | struct ospf *ospf; |
1652 | int type; | |
1653 | int abr_inv = 0; | |
1654 | struct ospf_area *area; | |
b5a8894d | 1655 | struct listnode *node, *n1; |
d62a17ae | 1656 | |
1657 | /* If OSPF instance does not exist, return right now. */ | |
b5a8894d | 1658 | if (listcount(om->ospf) == 0) |
d62a17ae | 1659 | return; |
1660 | ||
b5a8894d | 1661 | /* Iterate all ospf [VRF] instances */ |
43b8d1d8 | 1662 | for (ALL_LIST_ELEMENTS_RO(om->ospf, n1, ospf)) { |
b5a8894d CS |
1663 | /* Update distribute-list, and apply filter. */ |
1664 | for (type = 0; type <= ZEBRA_ROUTE_MAX; type++) { | |
1665 | struct list *red_list; | |
b5a8894d CS |
1666 | struct ospf_redist *red; |
1667 | ||
1668 | red_list = ospf->redist[type]; | |
1669 | if (red_list) | |
996c9314 LB |
1670 | for (ALL_LIST_ELEMENTS_RO(red_list, node, |
1671 | red)) { | |
b5a8894d | 1672 | if (ROUTEMAP(red)) { |
996c9314 LB |
1673 | /* if route-map is not NULL it |
1674 | * may be | |
b5a8894d CS |
1675 | * using this access list */ |
1676 | ospf_distribute_list_update( | |
996c9314 LB |
1677 | ospf, type, |
1678 | red->instance); | |
b5a8894d | 1679 | } |
d62a17ae | 1680 | } |
d62a17ae | 1681 | |
b5a8894d CS |
1682 | /* There is place for route-map for default-information |
1683 | * (ZEBRA_ROUTE_MAX), | |
1684 | * but no distribute list. */ | |
1685 | if (type == ZEBRA_ROUTE_MAX) | |
1686 | break; | |
1687 | ||
1688 | if (DISTRIBUTE_NAME(ospf, type)) { | |
1689 | /* Keep old access-list for distribute-list. */ | |
996c9314 LB |
1690 | struct access_list *old = |
1691 | DISTRIBUTE_LIST(ospf, type); | |
b5a8894d CS |
1692 | |
1693 | /* Update access-list for distribute-list. */ | |
996c9314 LB |
1694 | DISTRIBUTE_LIST(ospf, type) = |
1695 | access_list_lookup( | |
1696 | AFI_IP, | |
1697 | DISTRIBUTE_NAME(ospf, type)); | |
b5a8894d CS |
1698 | |
1699 | /* No update for this distribute type. */ | |
996c9314 LB |
1700 | if (old == NULL |
1701 | && DISTRIBUTE_LIST(ospf, type) == NULL) | |
b5a8894d CS |
1702 | continue; |
1703 | ||
1704 | /* Schedule distribute-list update timer. */ | |
1705 | if (DISTRIBUTE_LIST(ospf, type) == NULL | |
996c9314 LB |
1706 | || strcmp(DISTRIBUTE_NAME(ospf, type), |
1707 | access->name) | |
1708 | == 0) | |
1709 | ospf_distribute_list_update(ospf, type, | |
1710 | 0); | |
b5a8894d | 1711 | } |
d62a17ae | 1712 | } |
d62a17ae | 1713 | |
b5a8894d CS |
1714 | /* Update Area access-list. */ |
1715 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, node, area)) { | |
1716 | if (EXPORT_NAME(area)) { | |
1717 | EXPORT_LIST(area) = NULL; | |
1718 | abr_inv++; | |
1719 | } | |
d62a17ae | 1720 | |
b5a8894d CS |
1721 | if (IMPORT_NAME(area)) { |
1722 | IMPORT_LIST(area) = NULL; | |
1723 | abr_inv++; | |
1724 | } | |
d62a17ae | 1725 | } |
d62a17ae | 1726 | |
b5a8894d CS |
1727 | /* Schedule ABR tasks -- this will be changed -- takada. */ |
1728 | if (IS_OSPF_ABR(ospf) && abr_inv) | |
1729 | ospf_schedule_abr_task(ospf); | |
1730 | } | |
718e3744 | 1731 | } |
dd669bb0 | 1732 | |
1733 | /* If prefix-list is updated, do some updates. */ | |
2d4093ee | 1734 | static void ospf_prefix_list_update(struct prefix_list *plist) |
dd669bb0 | 1735 | { |
b5a8894d | 1736 | struct ospf *ospf = NULL; |
d62a17ae | 1737 | int type; |
1738 | int abr_inv = 0; | |
1739 | struct ospf_area *area; | |
b5a8894d | 1740 | struct listnode *node, *n1; |
d62a17ae | 1741 | |
1742 | /* If OSPF instatnce does not exist, return right now. */ | |
b5a8894d | 1743 | if (listcount(om->ospf) == 0) |
d62a17ae | 1744 | return; |
1745 | ||
b5a8894d CS |
1746 | /* Iterate all ospf [VRF] instances */ |
1747 | for (ALL_LIST_ELEMENTS_RO(om->ospf, n1, ospf)) { | |
1748 | ||
1749 | /* Update all route-maps which are used | |
1750 | * as redistribution filters. | |
1751 | * They might use prefix-list. | |
1752 | */ | |
1753 | for (type = 0; type <= ZEBRA_ROUTE_MAX; type++) { | |
1754 | struct list *red_list; | |
b5a8894d CS |
1755 | struct ospf_redist *red; |
1756 | ||
1757 | red_list = ospf->redist[type]; | |
6ec9c6a8 DS |
1758 | if (!red_list) |
1759 | continue; | |
1760 | ||
1761 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) { | |
1762 | if (ROUTEMAP(red)) { | |
1763 | /* if route-map is not NULL | |
1764 | * it may be using | |
1765 | * this prefix list */ | |
1766 | ospf_distribute_list_update( | |
1767 | ospf, type, red->instance); | |
d62a17ae | 1768 | } |
1769 | } | |
b5a8894d | 1770 | } |
d62a17ae | 1771 | |
b5a8894d CS |
1772 | /* Update area filter-lists. */ |
1773 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, node, area)) { | |
1774 | /* Update filter-list in. */ | |
6ec9c6a8 DS |
1775 | if (PREFIX_NAME_IN(area) |
1776 | && strcmp(PREFIX_NAME_IN(area), | |
1777 | prefix_list_name(plist)) | |
1778 | == 0) { | |
1779 | PREFIX_LIST_IN(area) = prefix_list_lookup( | |
1780 | AFI_IP, PREFIX_NAME_IN(area)); | |
1781 | abr_inv++; | |
1782 | } | |
d62a17ae | 1783 | |
b5a8894d | 1784 | /* Update filter-list out. */ |
6ec9c6a8 DS |
1785 | if (PREFIX_NAME_OUT(area) |
1786 | && strcmp(PREFIX_NAME_OUT(area), | |
1787 | prefix_list_name(plist)) | |
1788 | == 0) { | |
9629b44f | 1789 | PREFIX_LIST_OUT(area) = prefix_list_lookup( |
6ec9c6a8 DS |
1790 | AFI_IP, PREFIX_NAME_OUT(area)); |
1791 | abr_inv++; | |
1792 | } | |
b5a8894d | 1793 | } |
d62a17ae | 1794 | |
b5a8894d CS |
1795 | /* Schedule ABR task. */ |
1796 | if (IS_OSPF_ABR(ospf) && abr_inv) | |
1797 | ospf_schedule_abr_task(ospf); | |
1798 | } | |
dd669bb0 | 1799 | } |
cf795c5d | 1800 | |
d62a17ae | 1801 | static struct ospf_distance *ospf_distance_new(void) |
718e3744 | 1802 | { |
d62a17ae | 1803 | return XCALLOC(MTYPE_OSPF_DISTANCE, sizeof(struct ospf_distance)); |
718e3744 | 1804 | } |
1805 | ||
d62a17ae | 1806 | static void ospf_distance_free(struct ospf_distance *odistance) |
718e3744 | 1807 | { |
d62a17ae | 1808 | XFREE(MTYPE_OSPF_DISTANCE, odistance); |
718e3744 | 1809 | } |
1810 | ||
d62a17ae | 1811 | int ospf_distance_set(struct vty *vty, struct ospf *ospf, |
1812 | const char *distance_str, const char *ip_str, | |
1813 | const char *access_list_str) | |
718e3744 | 1814 | { |
d62a17ae | 1815 | int ret; |
1816 | struct prefix_ipv4 p; | |
d7c0a89a | 1817 | uint8_t distance; |
d62a17ae | 1818 | struct route_node *rn; |
1819 | struct ospf_distance *odistance; | |
1820 | ||
1821 | ret = str2prefix_ipv4(ip_str, &p); | |
1822 | if (ret == 0) { | |
1823 | vty_out(vty, "Malformed prefix\n"); | |
1824 | return CMD_WARNING_CONFIG_FAILED; | |
1825 | } | |
1826 | ||
1827 | distance = atoi(distance_str); | |
1828 | ||
1829 | /* Get OSPF distance node. */ | |
1830 | rn = route_node_get(ospf->distance_table, (struct prefix *)&p); | |
1831 | if (rn->info) { | |
1832 | odistance = rn->info; | |
1833 | route_unlock_node(rn); | |
1834 | } else { | |
1835 | odistance = ospf_distance_new(); | |
1836 | rn->info = odistance; | |
1837 | } | |
1838 | ||
1839 | /* Set distance value. */ | |
1840 | odistance->distance = distance; | |
1841 | ||
1842 | /* Reset access-list configuration. */ | |
1843 | if (odistance->access_list) { | |
1844 | free(odistance->access_list); | |
1845 | odistance->access_list = NULL; | |
1846 | } | |
1847 | if (access_list_str) | |
1848 | odistance->access_list = strdup(access_list_str); | |
1849 | ||
1850 | return CMD_SUCCESS; | |
718e3744 | 1851 | } |
1852 | ||
d62a17ae | 1853 | int ospf_distance_unset(struct vty *vty, struct ospf *ospf, |
1854 | const char *distance_str, const char *ip_str, | |
1855 | char const *access_list_str) | |
718e3744 | 1856 | { |
d62a17ae | 1857 | int ret; |
1858 | struct prefix_ipv4 p; | |
1859 | struct route_node *rn; | |
1860 | struct ospf_distance *odistance; | |
1861 | ||
1862 | ret = str2prefix_ipv4(ip_str, &p); | |
1863 | if (ret == 0) { | |
1864 | vty_out(vty, "Malformed prefix\n"); | |
1865 | return CMD_WARNING_CONFIG_FAILED; | |
1866 | } | |
1867 | ||
1868 | rn = route_node_lookup(ospf->distance_table, (struct prefix *)&p); | |
1869 | if (!rn) { | |
1870 | vty_out(vty, "Can't find specified prefix\n"); | |
1871 | return CMD_WARNING_CONFIG_FAILED; | |
1872 | } | |
1873 | ||
1874 | odistance = rn->info; | |
1875 | ||
1876 | if (odistance->access_list) | |
1877 | free(odistance->access_list); | |
1878 | ospf_distance_free(odistance); | |
1879 | ||
1880 | rn->info = NULL; | |
1881 | route_unlock_node(rn); | |
1882 | route_unlock_node(rn); | |
1883 | ||
1884 | return CMD_SUCCESS; | |
718e3744 | 1885 | } |
1886 | ||
d62a17ae | 1887 | void ospf_distance_reset(struct ospf *ospf) |
718e3744 | 1888 | { |
d62a17ae | 1889 | struct route_node *rn; |
1890 | struct ospf_distance *odistance; | |
1891 | ||
6ec9c6a8 DS |
1892 | for (rn = route_top(ospf->distance_table); rn; rn = route_next(rn)) { |
1893 | odistance = rn->info; | |
1894 | if (!odistance) | |
1895 | continue; | |
1896 | ||
1897 | if (odistance->access_list) | |
1898 | free(odistance->access_list); | |
1899 | ospf_distance_free(odistance); | |
1900 | rn->info = NULL; | |
1901 | route_unlock_node(rn); | |
1902 | } | |
718e3744 | 1903 | } |
1904 | ||
d7c0a89a QY |
1905 | uint8_t ospf_distance_apply(struct ospf *ospf, struct prefix_ipv4 *p, |
1906 | struct ospf_route * or) | |
718e3744 | 1907 | { |
718e3744 | 1908 | |
d62a17ae | 1909 | if (ospf == NULL) |
1910 | return 0; | |
718e3744 | 1911 | |
6ec9c6a8 DS |
1912 | if (ospf->distance_intra && or->path_type == OSPF_PATH_INTRA_AREA) |
1913 | return ospf->distance_intra; | |
718e3744 | 1914 | |
6ec9c6a8 DS |
1915 | if (ospf->distance_inter && or->path_type == OSPF_PATH_INTER_AREA) |
1916 | return ospf->distance_inter; | |
718e3744 | 1917 | |
6ec9c6a8 DS |
1918 | if (ospf->distance_external |
1919 | && (or->path_type == OSPF_PATH_TYPE1_EXTERNAL || | |
1920 | or->path_type == OSPF_PATH_TYPE2_EXTERNAL)) | |
1921 | return ospf->distance_external; | |
cf795c5d | 1922 | |
d62a17ae | 1923 | if (ospf->distance_all) |
1924 | return ospf->distance_all; | |
718e3744 | 1925 | |
d62a17ae | 1926 | return 0; |
718e3744 | 1927 | } |
1928 | ||
b5a8894d CS |
1929 | void ospf_zebra_vrf_register(struct ospf *ospf) |
1930 | { | |
1931 | if (!zclient || zclient->sock < 0 || !ospf) | |
1932 | return; | |
1933 | ||
6021c6c0 | 1934 | if (ospf->vrf_id != VRF_UNKNOWN) { |
b5a8894d | 1935 | if (IS_DEBUG_OSPF_EVENT) |
15569c58 | 1936 | zlog_debug("%s: Register VRF %s id %u", __func__, |
b5a8894d CS |
1937 | ospf_vrf_id_to_name(ospf->vrf_id), |
1938 | ospf->vrf_id); | |
1939 | zclient_send_reg_requests(zclient, ospf->vrf_id); | |
1940 | } | |
1941 | } | |
1942 | ||
1943 | void ospf_zebra_vrf_deregister(struct ospf *ospf) | |
1944 | { | |
1945 | if (!zclient || zclient->sock < 0 || !ospf) | |
1946 | return; | |
1947 | ||
1948 | if (ospf->vrf_id != VRF_DEFAULT && ospf->vrf_id != VRF_UNKNOWN) { | |
1949 | if (IS_DEBUG_OSPF_EVENT) | |
6021c6c0 | 1950 | zlog_debug("%s: De-Register VRF %s id %u to Zebra.", |
15569c58 | 1951 | __func__, ospf_vrf_id_to_name(ospf->vrf_id), |
b5a8894d CS |
1952 | ospf->vrf_id); |
1953 | /* Deregister for router-id, interfaces, | |
1954 | * redistributed routes. */ | |
1955 | zclient_send_dereg_requests(zclient, ospf->vrf_id); | |
1956 | } | |
1957 | } | |
b61264a8 | 1958 | |
d81b8e0e OD |
1959 | /* Label Manager Functions */ |
1960 | ||
1961 | /** | |
1962 | * Check if Label Manager is Ready or not. | |
1963 | * | |
1964 | * @return True if Label Manager is ready, False otherwise | |
1965 | */ | |
1966 | bool ospf_zebra_label_manager_ready(void) | |
1967 | { | |
1968 | return (zclient_sync->sock > 0); | |
1969 | } | |
1970 | ||
1971 | /** | |
1972 | * Request Label Range to the Label Manager. | |
1973 | * | |
1974 | * @param base base label of the label range to request | |
1975 | * @param chunk_size size of the label range to request | |
1976 | * | |
1977 | * @return 0 on success, -1 on failure | |
1978 | */ | |
1979 | int ospf_zebra_request_label_range(uint32_t base, uint32_t chunk_size) | |
1980 | { | |
1981 | int ret; | |
1982 | uint32_t start, end; | |
1983 | ||
1984 | if (zclient_sync->sock < 0) | |
1985 | return -1; | |
1986 | ||
1987 | ret = lm_get_label_chunk(zclient_sync, 0, base, chunk_size, &start, | |
1988 | &end); | |
1989 | if (ret < 0) { | |
1990 | zlog_warn("%s: error getting label range!", __func__); | |
1991 | return -1; | |
1992 | } | |
1993 | ||
1994 | return 0; | |
1995 | } | |
1996 | ||
1997 | /** | |
1998 | * Release Label Range to the Label Manager. | |
1999 | * | |
2000 | * @param start start of label range to release | |
2001 | * @param end end of label range to release | |
2002 | * | |
2003 | * @return 0 on success, -1 otherwise | |
2004 | */ | |
2005 | int ospf_zebra_release_label_range(uint32_t start, uint32_t end) | |
2006 | { | |
2007 | int ret; | |
2008 | ||
2009 | if (zclient_sync->sock < 0) | |
2010 | return -1; | |
2011 | ||
2012 | ret = lm_release_label_chunk(zclient_sync, start, end); | |
2013 | if (ret < 0) { | |
2014 | zlog_warn("%s: error releasing label range!", __func__); | |
2015 | return -1; | |
2016 | } | |
2017 | ||
2018 | return 0; | |
2019 | } | |
2020 | ||
2021 | /** | |
2022 | * Connect to the Label Manager. | |
2023 | * | |
2024 | * @return 0 on success, -1 otherwise | |
2025 | */ | |
2026 | int ospf_zebra_label_manager_connect(void) | |
2027 | { | |
2028 | /* Connect to label manager. */ | |
2029 | if (zclient_socket_connect(zclient_sync) < 0) { | |
2030 | zlog_warn("%s: failed connecting synchronous zclient!", | |
2031 | __func__); | |
2032 | return -1; | |
2033 | } | |
2034 | /* make socket non-blocking */ | |
2035 | set_nonblocking(zclient_sync->sock); | |
2036 | ||
2037 | /* Send hello to notify zebra this is a synchronous client */ | |
7cfdb485 | 2038 | if (zclient_send_hello(zclient_sync) == ZCLIENT_SEND_FAILURE) { |
d81b8e0e OD |
2039 | zlog_warn("%s: failed sending hello for synchronous zclient!", |
2040 | __func__); | |
2041 | close(zclient_sync->sock); | |
2042 | zclient_sync->sock = -1; | |
2043 | return -1; | |
2044 | } | |
2045 | ||
2046 | /* Connect to label manager */ | |
2047 | if (lm_label_manager_connect(zclient_sync, 0) != 0) { | |
2048 | zlog_warn("%s: failed connecting to label manager!", __func__); | |
2049 | if (zclient_sync->sock > 0) { | |
2050 | close(zclient_sync->sock); | |
2051 | zclient_sync->sock = -1; | |
2052 | } | |
2053 | return -1; | |
2054 | } | |
2055 | ||
2056 | osr_debug("SR (%s): Successfully connected to the Label Manager", | |
2057 | __func__); | |
2058 | ||
2059 | return 0; | |
2060 | } | |
2061 | ||
d62a17ae | 2062 | static void ospf_zebra_connected(struct zclient *zclient) |
7076bb2f | 2063 | { |
d62a17ae | 2064 | /* Send the client registration */ |
0945d5ed | 2065 | bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER, VRF_DEFAULT); |
2376c3f2 | 2066 | |
d62a17ae | 2067 | zclient_send_reg_requests(zclient, VRF_DEFAULT); |
7076bb2f FL |
2068 | } |
2069 | ||
132a782e | 2070 | /* |
2071 | * opaque messages between processes | |
2072 | */ | |
2073 | static int ospf_opaque_msg_handler(ZAPI_CALLBACK_ARGS) | |
2074 | { | |
2075 | struct stream *s; | |
2076 | struct zapi_opaque_msg info; | |
2077 | struct ldp_igp_sync_if_state state; | |
2078 | struct ldp_igp_sync_announce announce; | |
f173deb3 | 2079 | struct zapi_opaque_reg_info dst; |
132a782e | 2080 | int ret = 0; |
2081 | ||
2082 | s = zclient->ibuf; | |
2083 | ||
2084 | if (zclient_opaque_decode(s, &info) != 0) | |
2085 | return -1; | |
2086 | ||
2087 | switch (info.type) { | |
f173deb3 OD |
2088 | case LINK_STATE_SYNC: |
2089 | STREAM_GETC(s, dst.proto); | |
2090 | STREAM_GETW(s, dst.instance); | |
2091 | STREAM_GETL(s, dst.session_id); | |
2092 | dst.type = LINK_STATE_SYNC; | |
2093 | ret = ospf_te_sync_ted(dst); | |
2094 | break; | |
132a782e | 2095 | case LDP_IGP_SYNC_IF_STATE_UPDATE: |
2096 | STREAM_GET(&state, s, sizeof(state)); | |
2097 | ret = ospf_ldp_sync_state_update(state); | |
2098 | break; | |
2099 | case LDP_IGP_SYNC_ANNOUNCE_UPDATE: | |
2100 | STREAM_GET(&announce, s, sizeof(announce)); | |
2101 | ret = ospf_ldp_sync_announce_update(announce); | |
2102 | break; | |
132a782e | 2103 | default: |
2104 | break; | |
2105 | } | |
2106 | ||
2107 | stream_failure: | |
2108 | ||
2109 | return ret; | |
2110 | } | |
2111 | ||
cb135cc9 KS |
2112 | static int ospf_zebra_client_close_notify(ZAPI_CALLBACK_ARGS) |
2113 | { | |
2114 | int ret = 0; | |
2115 | ||
2116 | struct zapi_client_close_info info; | |
2117 | ||
2118 | if (zapi_client_close_notify_decode(zclient->ibuf, &info) < 0) | |
2119 | return -1; | |
2120 | ||
2121 | ospf_ldp_sync_handle_client_close(&info); | |
2122 | ||
2123 | return ret; | |
2124 | } | |
2125 | ||
a243d1db DL |
2126 | static zclient_handler *const ospf_handlers[] = { |
2127 | [ZEBRA_ROUTER_ID_UPDATE] = ospf_router_id_update_zebra, | |
2128 | [ZEBRA_INTERFACE_ADDRESS_ADD] = ospf_interface_address_add, | |
2129 | [ZEBRA_INTERFACE_ADDRESS_DELETE] = ospf_interface_address_delete, | |
2130 | [ZEBRA_INTERFACE_LINK_PARAMS] = ospf_interface_link_params, | |
2131 | [ZEBRA_INTERFACE_VRF_UPDATE] = ospf_interface_vrf_update, | |
2132 | ||
2133 | [ZEBRA_REDISTRIBUTE_ROUTE_ADD] = ospf_zebra_read_route, | |
2134 | [ZEBRA_REDISTRIBUTE_ROUTE_DEL] = ospf_zebra_read_route, | |
2135 | ||
2136 | [ZEBRA_OPAQUE_MESSAGE] = ospf_opaque_msg_handler, | |
2137 | ||
2138 | [ZEBRA_CLIENT_CLOSE_NOTIFY] = ospf_zebra_client_close_notify, | |
2139 | }; | |
2140 | ||
cd9d0537 | 2141 | void ospf_zebra_init(struct event_loop *master, unsigned short instance) |
718e3744 | 2142 | { |
d62a17ae | 2143 | /* Allocate zebra structure. */ |
a243d1db DL |
2144 | zclient = zclient_new(master, &zclient_options_default, ospf_handlers, |
2145 | array_size(ospf_handlers)); | |
342213ea | 2146 | zclient_init(zclient, ZEBRA_ROUTE_OSPF, instance, &ospfd_privs); |
d62a17ae | 2147 | zclient->zebra_connected = ospf_zebra_connected; |
d62a17ae | 2148 | |
d81b8e0e OD |
2149 | /* Initialize special zclient for synchronous message exchanges. */ |
2150 | struct zclient_options options = zclient_options_default; | |
2151 | options.synchronous = true; | |
a243d1db | 2152 | zclient_sync = zclient_new(master, &options, NULL, 0); |
d81b8e0e OD |
2153 | zclient_sync->sock = -1; |
2154 | zclient_sync->redist_default = ZEBRA_ROUTE_OSPF; | |
2155 | zclient_sync->instance = instance; | |
2156 | /* | |
2157 | * session_id must be different from default value (0) to distinguish | |
2158 | * the asynchronous socket from the synchronous one | |
2159 | */ | |
2160 | zclient_sync->session_id = 1; | |
2161 | zclient_sync->privs = &ospfd_privs; | |
2162 | ||
d62a17ae | 2163 | access_list_add_hook(ospf_filter_update); |
2164 | access_list_delete_hook(ospf_filter_update); | |
2165 | prefix_list_add_hook(ospf_prefix_list_update); | |
2166 | prefix_list_delete_hook(ospf_prefix_list_update); | |
718e3744 | 2167 | } |
aa530b62 JU |
2168 | |
2169 | void ospf_zebra_send_arp(const struct interface *ifp, const struct prefix *p) | |
2170 | { | |
2171 | zclient_send_neigh_discovery_req(zclient, ifp, p); | |
2172 | } |