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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" |
017714e3 | 23 | #include "lib/lib_errors.h" |
5b30316e | 24 | #include "nexthop.h" |
718e3744 | 25 | |
26 | #include "ospfd/ospfd.h" | |
27 | #include "ospfd/ospf_interface.h" | |
28 | #include "ospfd/ospf_ism.h" | |
29 | #include "ospfd/ospf_asbr.h" | |
30 | #include "ospfd/ospf_asbr.h" | |
31 | #include "ospfd/ospf_abr.h" | |
32 | #include "ospfd/ospf_lsa.h" | |
33 | #include "ospfd/ospf_dump.h" | |
34 | #include "ospfd/ospf_route.h" | |
d5a5c8f0 DS |
35 | #include "ospfd/ospf_lsdb.h" |
36 | #include "ospfd/ospf_neighbor.h" | |
37 | #include "ospfd/ospf_nsm.h" | |
718e3744 | 38 | #include "ospfd/ospf_zebra.h" |
16f1b9ee | 39 | #include "ospfd/ospf_te.h" |
43e7abb5 | 40 | #include "ospfd/ospf_sr.h" |
132a782e | 41 | #include "ospfd/ospf_ldp_sync.h" |
718e3744 | 42 | |
bf8d3d6a DL |
43 | DEFINE_MTYPE_STATIC(OSPFD, OSPF_EXTERNAL, "OSPF External route table"); |
44 | DEFINE_MTYPE_STATIC(OSPFD, OSPF_REDISTRIBUTE, "OSPF Redistriute"); | |
dfac5d39 | 45 | |
1febb13d | 46 | |
718e3744 | 47 | /* Zebra structure to hold current status. */ |
48 | struct zclient *zclient = NULL; | |
d81b8e0e OD |
49 | /* and for the Synchronous connection to the Label Manager */ |
50 | static struct zclient *zclient_sync; | |
718e3744 | 51 | |
52 | /* For registering threads. */ | |
cd9d0537 | 53 | extern struct event_loop *master; |
18a6dce6 | 54 | |
55 | /* Router-id update message from zebra. */ | |
121f9dee | 56 | static int ospf_router_id_update_zebra(ZAPI_CALLBACK_ARGS) |
18a6dce6 | 57 | { |
b5a8894d | 58 | struct ospf *ospf = NULL; |
d62a17ae | 59 | struct prefix router_id; |
60 | zebra_router_id_update_read(zclient->ibuf, &router_id); | |
61 | ||
2dbe669b DA |
62 | if (IS_DEBUG_OSPF(zebra, ZEBRA_INTERFACE)) |
63 | zlog_debug("Zebra rcvd: router id update %pFX vrf %s id %u", | |
64 | &router_id, ospf_vrf_id_to_name(vrf_id), vrf_id); | |
d62a17ae | 65 | |
b5a8894d | 66 | ospf = ospf_lookup_by_vrf_id(vrf_id); |
d62a17ae | 67 | |
6021c6c0 CS |
68 | if (ospf != NULL) { |
69 | ospf->router_id_zebra = router_id.u.prefix4; | |
d62a17ae | 70 | ospf_router_id_update(ospf); |
6021c6c0 | 71 | } else { |
2dbe669b | 72 | if (IS_DEBUG_OSPF_EVENT) |
996c9314 | 73 | zlog_debug( |
2dbe669b | 74 | "%s: ospf instance not found for vrf %s id %u router_id %pFX", |
15569c58 | 75 | __func__, ospf_vrf_id_to_name(vrf_id), vrf_id, |
2dbe669b | 76 | &router_id); |
b5a8894d | 77 | } |
d62a17ae | 78 | return 0; |
18a6dce6 | 79 | } |
718e3744 | 80 | |
121f9dee | 81 | static int ospf_interface_address_add(ZAPI_CALLBACK_ARGS) |
718e3744 | 82 | { |
d62a17ae | 83 | struct connected *c; |
b5a8894d CS |
84 | struct ospf *ospf = NULL; |
85 | ||
718e3744 | 86 | |
121f9dee | 87 | c = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
718e3744 | 88 | |
d62a17ae | 89 | if (c == NULL) |
90 | return 0; | |
718e3744 | 91 | |
2dbe669b DA |
92 | if (IS_DEBUG_OSPF(zebra, ZEBRA_INTERFACE)) |
93 | zlog_debug("Zebra: interface %s address add %pFX vrf %s id %u", | |
94 | c->ifp->name, c->address, | |
95 | ospf_vrf_id_to_name(vrf_id), vrf_id); | |
7f643ebf | 96 | |
b5a8894d | 97 | ospf = ospf_lookup_by_vrf_id(vrf_id); |
43b8d1d8 CS |
98 | if (!ospf) |
99 | return 0; | |
b5a8894d CS |
100 | |
101 | ospf_if_update(ospf, c->ifp); | |
718e3744 | 102 | |
ef7bd2a3 | 103 | ospf_if_interface(c->ifp); |
718e3744 | 104 | |
d62a17ae | 105 | return 0; |
718e3744 | 106 | } |
107 | ||
121f9dee | 108 | static int ospf_interface_address_delete(ZAPI_CALLBACK_ARGS) |
718e3744 | 109 | { |
d62a17ae | 110 | struct connected *c; |
111 | struct interface *ifp; | |
112 | struct ospf_interface *oi; | |
113 | struct route_node *rn; | |
114 | struct prefix p; | |
115 | ||
121f9dee | 116 | c = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
d62a17ae | 117 | |
118 | if (c == NULL) | |
119 | return 0; | |
120 | ||
2dbe669b DA |
121 | if (IS_DEBUG_OSPF(zebra, ZEBRA_INTERFACE)) |
122 | zlog_debug("Zebra: interface %s address delete %pFX", | |
123 | c->ifp->name, c->address); | |
7f643ebf | 124 | |
d62a17ae | 125 | ifp = c->ifp; |
126 | p = *c->address; | |
936fbaef | 127 | p.prefixlen = IPV4_MAX_BITLEN; |
718e3744 | 128 | |
d62a17ae | 129 | rn = route_node_lookup(IF_OIFS(ifp), &p); |
130 | if (!rn) { | |
721c0857 | 131 | connected_free(&c); |
d62a17ae | 132 | return 0; |
133 | } | |
718e3744 | 134 | |
d62a17ae | 135 | assert(rn->info); |
136 | oi = rn->info; | |
137 | route_unlock_node(rn); | |
cf795c5d | 138 | |
d62a17ae | 139 | /* Call interface hook functions to clean up */ |
140 | ospf_if_free(oi); | |
cf795c5d | 141 | |
ef7bd2a3 | 142 | ospf_if_interface(c->ifp); |
718e3744 | 143 | |
721c0857 | 144 | connected_free(&c); |
718e3744 | 145 | |
d62a17ae | 146 | return 0; |
718e3744 | 147 | } |
72357f2b | 148 | |
121f9dee | 149 | static int ospf_interface_link_params(ZAPI_CALLBACK_ARGS) |
16f1b9ee | 150 | { |
d62a17ae | 151 | struct interface *ifp; |
0b4124c1 | 152 | bool changed = false; |
16f1b9ee | 153 | |
0b4124c1 | 154 | ifp = zebra_interface_link_params_read(zclient->ibuf, vrf_id, &changed); |
16f1b9ee | 155 | |
0b4124c1 | 156 | if (ifp == NULL || !changed) |
d62a17ae | 157 | return 0; |
16f1b9ee | 158 | |
d62a17ae | 159 | /* Update TE TLV */ |
160 | ospf_mpls_te_update_if(ifp); | |
16f1b9ee | 161 | |
d62a17ae | 162 | return 0; |
16f1b9ee OD |
163 | } |
164 | ||
b5a8894d | 165 | /* VRF update for an interface. */ |
121f9dee | 166 | static int ospf_interface_vrf_update(ZAPI_CALLBACK_ARGS) |
b5a8894d CS |
167 | { |
168 | struct interface *ifp = NULL; | |
169 | vrf_id_t new_vrf_id; | |
16f1b9ee | 170 | |
b5a8894d | 171 | ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id, |
996c9314 | 172 | &new_vrf_id); |
b5a8894d CS |
173 | if (!ifp) |
174 | return 0; | |
175 | ||
176 | if (IS_DEBUG_OSPF_EVENT) | |
996c9314 LB |
177 | zlog_debug( |
178 | "%s: Rx Interface %s VRF change vrf_id %u New vrf %s id %u", | |
15569c58 | 179 | __func__, ifp->name, vrf_id, |
996c9314 | 180 | ospf_vrf_id_to_name(new_vrf_id), new_vrf_id); |
b5a8894d CS |
181 | |
182 | /*if_update(ifp, ifp->name, strlen(ifp->name), new_vrf_id);*/ | |
a36898e7 | 183 | if_update_to_new_vrf(ifp, new_vrf_id); |
b5a8894d | 184 | |
996c9314 | 185 | return 0; |
b5a8894d CS |
186 | } |
187 | ||
7fd0729f G |
188 | /* Nexthop, ifindex, distance and metric information. */ |
189 | static void ospf_zebra_add_nexthop(struct ospf *ospf, struct ospf_path *path, | |
190 | struct zapi_route *api) | |
191 | { | |
192 | struct zapi_nexthop *api_nh; | |
193 | struct zapi_nexthop *api_nh_backup; | |
194 | ||
195 | /* TI-LFA backup path label stack comes first, if present */ | |
196 | if (path->srni.backup_label_stack) { | |
197 | api_nh_backup = &api->backup_nexthops[api->backup_nexthop_num]; | |
198 | api_nh_backup->vrf_id = ospf->vrf_id; | |
199 | ||
f026b24e | 200 | api_nh_backup->type = NEXTHOP_TYPE_IPV4; |
7fd0729f G |
201 | api_nh_backup->gate.ipv4 = path->srni.backup_nexthop; |
202 | ||
203 | api_nh_backup->label_num = | |
204 | path->srni.backup_label_stack->num_labels; | |
205 | memcpy(api_nh_backup->labels, | |
206 | path->srni.backup_label_stack->label, | |
207 | sizeof(mpls_label_t) * api_nh_backup->label_num); | |
208 | ||
209 | api->backup_nexthop_num++; | |
210 | } | |
211 | ||
212 | /* And here comes the primary nexthop */ | |
213 | api_nh = &api->nexthops[api->nexthop_num]; | |
214 | #ifdef HAVE_NETLINK | |
215 | if (path->unnumbered | |
216 | || (path->nexthop.s_addr != INADDR_ANY && path->ifindex != 0)) { | |
217 | #else /* HAVE_NETLINK */ | |
218 | if (path->nexthop.s_addr != INADDR_ANY && path->ifindex != 0) { | |
219 | #endif /* HAVE_NETLINK */ | |
220 | api_nh->gate.ipv4 = path->nexthop; | |
221 | api_nh->ifindex = path->ifindex; | |
222 | api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX; | |
223 | } else if (path->nexthop.s_addr != INADDR_ANY) { | |
224 | api_nh->gate.ipv4 = path->nexthop; | |
225 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
226 | } else { | |
227 | api_nh->ifindex = path->ifindex; | |
228 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
229 | } | |
230 | api_nh->vrf_id = ospf->vrf_id; | |
231 | ||
232 | /* Set TI-LFA backup nexthop info if present */ | |
233 | if (path->srni.backup_label_stack) { | |
234 | SET_FLAG(api->message, ZAPI_MESSAGE_BACKUP_NEXTHOPS); | |
235 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_HAS_BACKUP); | |
236 | ||
237 | /* Just care about a single TI-LFA backup path for now */ | |
238 | api_nh->backup_num = 1; | |
239 | api_nh->backup_idx[0] = api->backup_nexthop_num - 1; | |
240 | } | |
241 | ||
242 | api->nexthop_num++; | |
243 | } | |
244 | ||
5b5d66c4 RW |
245 | static void ospf_zebra_append_opaque_attr(struct ospf_route *or, |
246 | struct zapi_route *api) | |
247 | { | |
248 | struct ospf_zebra_opaque ospf_opaque = {}; | |
249 | ||
250 | /* OSPF path type */ | |
251 | snprintf(ospf_opaque.path_type, sizeof(ospf_opaque.path_type), "%s", | |
252 | ospf_path_type_name(or->path_type)); | |
253 | ||
254 | switch (or->path_type) { | |
255 | case OSPF_PATH_INTRA_AREA: | |
256 | case OSPF_PATH_INTER_AREA: | |
257 | /* OSPF area ID */ | |
258 | (void)inet_ntop(AF_INET, &or->u.std.area_id, | |
259 | ospf_opaque.area_id, | |
260 | sizeof(ospf_opaque.area_id)); | |
261 | break; | |
262 | case OSPF_PATH_TYPE1_EXTERNAL: | |
263 | case OSPF_PATH_TYPE2_EXTERNAL: | |
264 | /* OSPF route tag */ | |
265 | snprintf(ospf_opaque.tag, sizeof(ospf_opaque.tag), "%u", | |
266 | or->u.ext.tag); | |
267 | break; | |
268 | default: | |
269 | break; | |
270 | } | |
271 | ||
272 | SET_FLAG(api->message, ZAPI_MESSAGE_OPAQUE); | |
273 | api->opaque.length = sizeof(struct ospf_zebra_opaque); | |
274 | memcpy(api->opaque.data, &ospf_opaque, api->opaque.length); | |
275 | } | |
276 | ||
b5a8894d | 277 | void ospf_zebra_add(struct ospf *ospf, struct prefix_ipv4 *p, |
996c9314 | 278 | struct ospf_route * or) |
718e3744 | 279 | { |
5fef910e | 280 | struct zapi_route api; |
d7c0a89a | 281 | uint8_t distance; |
d62a17ae | 282 | struct ospf_path *path; |
283 | struct listnode *node; | |
d62a17ae | 284 | |
10514170 RW |
285 | if (ospf->gr_info.restart_in_progress) { |
286 | if (IS_DEBUG_OSPF_GR) | |
287 | zlog_debug( | |
288 | "Zebra: Graceful Restart in progress -- not installing %pFX", | |
289 | p); | |
290 | return; | |
291 | } | |
292 | ||
5fef910e | 293 | memset(&api, 0, sizeof(api)); |
b5a8894d | 294 | api.vrf_id = ospf->vrf_id; |
5fef910e RW |
295 | api.type = ZEBRA_ROUTE_OSPF; |
296 | api.instance = ospf->instance; | |
297 | api.safi = SAFI_UNICAST; | |
d00061ea | 298 | |
5fef910e RW |
299 | memcpy(&api.prefix, p, sizeof(*p)); |
300 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
d00061ea | 301 | |
5fef910e RW |
302 | /* Metric value. */ |
303 | SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); | |
304 | if (or->path_type == OSPF_PATH_TYPE1_EXTERNAL) | |
305 | api.metric = or->cost + or->u.ext.type2_cost; | |
306 | else if (or->path_type == OSPF_PATH_TYPE2_EXTERNAL) | |
307 | api.metric = or->u.ext.type2_cost; | |
308 | else | |
309 | api.metric = or->cost; | |
d00061ea RW |
310 | |
311 | /* Check if path type is ASE */ | |
312 | if (((or->path_type == OSPF_PATH_TYPE1_EXTERNAL) | |
313 | || (or->path_type == OSPF_PATH_TYPE2_EXTERNAL)) | |
5fef910e RW |
314 | && (or->u.ext.tag > 0) && (or->u.ext.tag <= ROUTE_TAG_MAX)) { |
315 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); | |
316 | api.tag = or->u.ext.tag; | |
317 | } | |
d00061ea | 318 | |
5fef910e | 319 | /* Distance value. */ |
b5a8894d | 320 | distance = ospf_distance_apply(ospf, p, or); |
5fef910e RW |
321 | if (distance) { |
322 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
323 | api.distance = distance; | |
324 | } | |
d00061ea | 325 | |
d00061ea | 326 | for (ALL_LIST_ELEMENTS_RO(or->paths, node, path)) { |
3d5b9855 | 327 | if (api.nexthop_num >= ospf->max_multipath) |
a74e593b | 328 | break; |
7fd0729f G |
329 | |
330 | ospf_zebra_add_nexthop(ospf, path, &api); | |
72357f2b | 331 | |
d00061ea | 332 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) { |
96065dc3 CS |
333 | struct interface *ifp; |
334 | ||
335 | ifp = if_lookup_by_index(path->ifindex, ospf->vrf_id); | |
4259ea81 | 336 | |
d00061ea | 337 | zlog_debug( |
2dbe669b DA |
338 | "Zebra: Route add %pFX nexthop %pI4, ifindex=%d %s", |
339 | p, &path->nexthop, path->ifindex, | |
340 | ifp ? ifp->name : " "); | |
d62a17ae | 341 | } |
d00061ea | 342 | } |
d62a17ae | 343 | |
5b5d66c4 RW |
344 | if (CHECK_FLAG(ospf->config, OSPF_SEND_EXTRA_DATA_TO_ZEBRA)) |
345 | ospf_zebra_append_opaque_attr(or, &api); | |
346 | ||
5fef910e | 347 | zclient_route_send(ZEBRA_ROUTE_ADD, zclient, &api); |
718e3744 | 348 | } |
349 | ||
b5a8894d | 350 | void ospf_zebra_delete(struct ospf *ospf, struct prefix_ipv4 *p, |
996c9314 | 351 | struct ospf_route * or) |
718e3744 | 352 | { |
5fef910e | 353 | struct zapi_route api; |
d62a17ae | 354 | |
10514170 RW |
355 | if (ospf->gr_info.restart_in_progress) { |
356 | if (IS_DEBUG_OSPF_GR) | |
357 | zlog_debug( | |
358 | "Zebra: Graceful Restart in progress -- not uninstalling %pFX", | |
359 | p); | |
360 | return; | |
361 | } | |
362 | ||
5fef910e | 363 | memset(&api, 0, sizeof(api)); |
b5a8894d | 364 | api.vrf_id = ospf->vrf_id; |
5fef910e RW |
365 | api.type = ZEBRA_ROUTE_OSPF; |
366 | api.instance = ospf->instance; | |
367 | api.safi = SAFI_UNICAST; | |
368 | memcpy(&api.prefix, p, sizeof(*p)); | |
d62a17ae | 369 | |
2dbe669b DA |
370 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
371 | zlog_debug("Zebra: Route delete %pFX", p); | |
d00061ea | 372 | |
5fef910e | 373 | zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api); |
718e3744 | 374 | } |
375 | ||
b5a8894d | 376 | void ospf_zebra_add_discard(struct ospf *ospf, struct prefix_ipv4 *p) |
718e3744 | 377 | { |
5fef910e | 378 | struct zapi_route api; |
d62a17ae | 379 | |
10514170 RW |
380 | if (ospf->gr_info.restart_in_progress) { |
381 | if (IS_DEBUG_OSPF_GR) | |
382 | zlog_debug( | |
383 | "Zebra: Graceful Restart in progress -- not installing %pFX", | |
384 | p); | |
385 | return; | |
386 | } | |
387 | ||
5fef910e | 388 | memset(&api, 0, sizeof(api)); |
b5a8894d | 389 | api.vrf_id = ospf->vrf_id; |
d00061ea RW |
390 | api.type = ZEBRA_ROUTE_OSPF; |
391 | api.instance = ospf->instance; | |
d00061ea | 392 | api.safi = SAFI_UNICAST; |
5fef910e | 393 | memcpy(&api.prefix, p, sizeof(*p)); |
09a484dd | 394 | zapi_route_set_blackhole(&api, BLACKHOLE_NULL); |
d00061ea | 395 | |
5fef910e | 396 | zclient_route_send(ZEBRA_ROUTE_ADD, zclient, &api); |
d00061ea | 397 | |
2dbe669b DA |
398 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
399 | zlog_debug("Zebra: Route add discard %pFX", p); | |
718e3744 | 400 | } |
401 | ||
b5a8894d | 402 | void ospf_zebra_delete_discard(struct ospf *ospf, struct prefix_ipv4 *p) |
718e3744 | 403 | { |
5fef910e | 404 | struct zapi_route api; |
d62a17ae | 405 | |
10514170 RW |
406 | if (ospf->gr_info.restart_in_progress) { |
407 | if (IS_DEBUG_OSPF_GR) | |
408 | zlog_debug( | |
409 | "Zebra: Graceful Restart in progress -- not uninstalling %pFX", | |
410 | p); | |
411 | return; | |
412 | } | |
413 | ||
5fef910e | 414 | memset(&api, 0, sizeof(api)); |
b5a8894d | 415 | api.vrf_id = ospf->vrf_id; |
d00061ea RW |
416 | api.type = ZEBRA_ROUTE_OSPF; |
417 | api.instance = ospf->instance; | |
d00061ea | 418 | api.safi = SAFI_UNICAST; |
5fef910e | 419 | memcpy(&api.prefix, p, sizeof(*p)); |
09a484dd | 420 | zapi_route_set_blackhole(&api, BLACKHOLE_NULL); |
d00061ea | 421 | |
5fef910e | 422 | zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api); |
d00061ea | 423 | |
2dbe669b DA |
424 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
425 | zlog_debug("Zebra: Route delete discard %pFX", p); | |
718e3744 | 426 | } |
427 | ||
d7c0a89a QY |
428 | struct ospf_external *ospf_external_lookup(struct ospf *ospf, uint8_t type, |
429 | unsigned short instance) | |
7c8ff89e | 430 | { |
d62a17ae | 431 | struct list *ext_list; |
432 | struct listnode *node; | |
433 | struct ospf_external *ext; | |
7c8ff89e | 434 | |
de1ac5fd | 435 | ext_list = ospf->external[type]; |
d62a17ae | 436 | if (!ext_list) |
437 | return (NULL); | |
7c8ff89e | 438 | |
d62a17ae | 439 | for (ALL_LIST_ELEMENTS_RO(ext_list, node, ext)) |
440 | if (ext->instance == instance) | |
441 | return ext; | |
7c8ff89e | 442 | |
d62a17ae | 443 | return NULL; |
7c8ff89e DS |
444 | } |
445 | ||
d7c0a89a QY |
446 | struct ospf_external *ospf_external_add(struct ospf *ospf, uint8_t type, |
447 | unsigned short instance) | |
7c8ff89e | 448 | { |
d62a17ae | 449 | struct list *ext_list; |
450 | struct ospf_external *ext; | |
7c8ff89e | 451 | |
de1ac5fd | 452 | ext = ospf_external_lookup(ospf, type, instance); |
d62a17ae | 453 | if (ext) |
454 | return ext; | |
7c8ff89e | 455 | |
de1ac5fd CS |
456 | if (!ospf->external[type]) |
457 | ospf->external[type] = list_new(); | |
7c8ff89e | 458 | |
de1ac5fd | 459 | ext_list = ospf->external[type]; |
9f5dc319 | 460 | ext = XCALLOC(MTYPE_OSPF_EXTERNAL, sizeof(struct ospf_external)); |
d62a17ae | 461 | ext->instance = instance; |
462 | EXTERNAL_INFO(ext) = route_table_init(); | |
7c8ff89e | 463 | |
d62a17ae | 464 | listnode_add(ext_list, ext); |
7c8ff89e | 465 | |
d62a17ae | 466 | return ext; |
7c8ff89e DS |
467 | } |
468 | ||
1febb13d S |
469 | /* |
470 | * Walk all the ei received from zebra for a route type and apply | |
471 | * default route-map. | |
472 | */ | |
473 | bool ospf_external_default_routemap_apply_walk(struct ospf *ospf, | |
474 | struct list *ext_list, | |
475 | struct external_info *default_ei) | |
476 | { | |
477 | struct listnode *node; | |
478 | struct ospf_external *ext; | |
479 | struct route_node *rn; | |
480 | struct external_info *ei = NULL; | |
481 | int ret = 0; | |
482 | ||
483 | for (ALL_LIST_ELEMENTS_RO(ext_list, node, ext)) { | |
484 | if (!ext->external_info) | |
485 | continue; | |
486 | ||
487 | for (rn = route_top(ext->external_info); rn; | |
488 | rn = route_next(rn)) { | |
489 | ei = rn->info; | |
490 | if (!ei) | |
491 | continue; | |
492 | ret = ospf_external_info_apply_default_routemap( | |
493 | ospf, ei, default_ei); | |
494 | if (ret) | |
495 | break; | |
496 | } | |
497 | } | |
498 | ||
499 | if (ret && ei) { | |
500 | if (IS_DEBUG_OSPF_DEFAULT_INFO) | |
96b663a3 MS |
501 | zlog_debug("Default originate routemap permit ei: %pI4", |
502 | &ei->p.prefix); | |
1febb13d S |
503 | return true; |
504 | } | |
505 | ||
506 | return false; | |
507 | } | |
508 | ||
509 | /* | |
510 | * Function to originate or flush default after applying | |
511 | * route-map on all ei. | |
512 | */ | |
e6685141 | 513 | static void ospf_external_lsa_default_routemap_timer(struct event *thread) |
1febb13d S |
514 | { |
515 | struct list *ext_list; | |
e16d030c | 516 | struct ospf *ospf = EVENT_ARG(thread); |
1febb13d S |
517 | struct prefix_ipv4 p; |
518 | int type; | |
519 | int ret = 0; | |
520 | struct ospf_lsa *lsa; | |
521 | struct external_info *default_ei; | |
522 | ||
523 | p.family = AF_INET; | |
524 | p.prefixlen = 0; | |
525 | p.prefix.s_addr = INADDR_ANY; | |
526 | ||
527 | /* Get the default extenal info. */ | |
528 | default_ei = ospf_external_info_lookup(ospf, DEFAULT_ROUTE, | |
529 | ospf->instance, &p); | |
530 | if (!default_ei) { | |
531 | /* Nothing to be done here. */ | |
532 | if (IS_DEBUG_OSPF_DEFAULT_INFO) | |
533 | zlog_debug("Default originate info not present"); | |
cc9f21da | 534 | return; |
1febb13d S |
535 | } |
536 | ||
537 | /* For all the ei apply route-map */ | |
538 | for (type = 0; type <= ZEBRA_ROUTE_MAX; type++) { | |
539 | ext_list = ospf->external[type]; | |
540 | if (!ext_list || type == ZEBRA_ROUTE_OSPF) | |
541 | continue; | |
542 | ||
543 | ret = ospf_external_default_routemap_apply_walk(ospf, ext_list, | |
544 | default_ei); | |
545 | if (ret) | |
546 | break; | |
547 | } | |
548 | ||
549 | /* Get the default LSA. */ | |
550 | lsa = ospf_external_info_find_lsa(ospf, &p); | |
551 | ||
552 | /* If permit then originate default. */ | |
553 | if (ret && !lsa) | |
554 | ospf_external_lsa_originate(ospf, default_ei); | |
555 | else if (ret && lsa && IS_LSA_MAXAGE(lsa)) | |
63f0e941 | 556 | ospf_external_lsa_refresh(ospf, lsa, default_ei, true, false); |
1febb13d S |
557 | else if (!ret && lsa) |
558 | ospf_external_lsa_flush(ospf, DEFAULT_ROUTE, &default_ei->p, 0); | |
1febb13d S |
559 | } |
560 | ||
561 | ||
d7c0a89a | 562 | void ospf_external_del(struct ospf *ospf, uint8_t type, unsigned short instance) |
7c8ff89e | 563 | { |
d62a17ae | 564 | struct ospf_external *ext; |
565 | ||
de1ac5fd | 566 | ext = ospf_external_lookup(ospf, type, instance); |
d62a17ae | 567 | |
568 | if (ext) { | |
569 | if (EXTERNAL_INFO(ext)) | |
570 | route_table_finish(EXTERNAL_INFO(ext)); | |
571 | ||
de1ac5fd CS |
572 | listnode_delete(ospf->external[type], ext); |
573 | ||
574 | if (!ospf->external[type]->count) | |
6a154c88 | 575 | list_delete(&ospf->external[type]); |
de1ac5fd | 576 | |
7f586094 | 577 | XFREE(MTYPE_OSPF_EXTERNAL, ext); |
d62a17ae | 578 | } |
1febb13d S |
579 | |
580 | /* | |
581 | * Check if default needs to be flushed too. | |
582 | */ | |
907a2395 DS |
583 | event_add_event(master, ospf_external_lsa_default_routemap_timer, ospf, |
584 | 0, &ospf->t_default_routemap_timer); | |
7c8ff89e DS |
585 | } |
586 | ||
43e7abb5 OD |
587 | /* Update NHLFE for Prefix SID */ |
588 | void ospf_zebra_update_prefix_sid(const struct sr_prefix *srp) | |
589 | { | |
590 | struct zapi_labels zl; | |
591 | struct zapi_nexthop *znh; | |
4ea5353b | 592 | struct zapi_nexthop *znh_backup; |
43e7abb5 OD |
593 | struct listnode *node; |
594 | struct ospf_path *path; | |
595 | ||
43e7abb5 OD |
596 | /* Prepare message. */ |
597 | memset(&zl, 0, sizeof(zl)); | |
598 | zl.type = ZEBRA_LSP_OSPF_SR; | |
599 | zl.local_label = srp->label_in; | |
600 | ||
601 | switch (srp->type) { | |
602 | case LOCAL_SID: | |
603 | /* Set Label for local Prefix */ | |
604 | znh = &zl.nexthops[zl.nexthop_num++]; | |
605 | znh->type = NEXTHOP_TYPE_IFINDEX; | |
606 | znh->ifindex = srp->nhlfe.ifindex; | |
607 | znh->label_num = 1; | |
608 | znh->labels[0] = srp->nhlfe.label_out; | |
56981b40 OD |
609 | |
610 | osr_debug("SR (%s): Configure Prefix %pFX with labels %u/%u", | |
611 | __func__, (struct prefix *)&srp->prefv4, | |
612 | srp->label_in, srp->nhlfe.label_out); | |
613 | ||
43e7abb5 OD |
614 | break; |
615 | ||
616 | case PREF_SID: | |
617 | /* Update route in the RIB too. */ | |
618 | SET_FLAG(zl.message, ZAPI_LABELS_FTN); | |
619 | zl.route.prefix.u.prefix4 = srp->prefv4.prefix; | |
620 | zl.route.prefix.prefixlen = srp->prefv4.prefixlen; | |
621 | zl.route.prefix.family = srp->prefv4.family; | |
622 | zl.route.type = ZEBRA_ROUTE_OSPF; | |
623 | zl.route.instance = 0; | |
624 | ||
625 | /* Check that SRP contains at least one valid path */ | |
626 | if (srp->route == NULL) { | |
627 | return; | |
628 | } | |
56981b40 OD |
629 | |
630 | osr_debug("SR (%s): Configure Prefix %pFX with", | |
631 | __func__, (struct prefix *)&srp->prefv4); | |
632 | ||
43e7abb5 OD |
633 | for (ALL_LIST_ELEMENTS_RO(srp->route->paths, node, path)) { |
634 | if (path->srni.label_out == MPLS_INVALID_LABEL) | |
635 | continue; | |
636 | ||
637 | if (zl.nexthop_num >= MULTIPATH_NUM) | |
638 | break; | |
639 | ||
f026b24e G |
640 | /* |
641 | * TI-LFA backup path label stack comes first, if | |
642 | * present. | |
643 | */ | |
4ea5353b G |
644 | if (path->srni.backup_label_stack) { |
645 | znh_backup = &zl.backup_nexthops | |
646 | [zl.backup_nexthop_num++]; | |
f026b24e | 647 | znh_backup->type = NEXTHOP_TYPE_IPV4; |
4ea5353b G |
648 | znh_backup->gate.ipv4 = |
649 | path->srni.backup_nexthop; | |
650 | ||
4ea5353b G |
651 | memcpy(znh_backup->labels, |
652 | path->srni.backup_label_stack->label, | |
653 | sizeof(mpls_label_t) | |
f026b24e G |
654 | * path->srni.backup_label_stack |
655 | ->num_labels); | |
656 | ||
657 | znh_backup->label_num = | |
658 | path->srni.backup_label_stack | |
659 | ->num_labels; | |
660 | if (path->srni.label_out | |
661 | != MPLS_LABEL_IPV4_EXPLICIT_NULL | |
662 | && path->srni.label_out | |
663 | != MPLS_LABEL_IMPLICIT_NULL) | |
664 | znh_backup->labels | |
665 | [znh_backup->label_num++] = | |
666 | path->srni.label_out; | |
4ea5353b G |
667 | } |
668 | ||
43e7abb5 OD |
669 | znh = &zl.nexthops[zl.nexthop_num++]; |
670 | znh->type = NEXTHOP_TYPE_IPV4_IFINDEX; | |
671 | znh->gate.ipv4 = path->nexthop; | |
672 | znh->ifindex = path->ifindex; | |
673 | znh->label_num = 1; | |
674 | znh->labels[0] = path->srni.label_out; | |
4ea5353b | 675 | |
56981b40 | 676 | osr_debug(" |- labels %u/%u", srp->label_in, |
270e66a2 | 677 | path->srni.label_out); |
56981b40 | 678 | |
4ea5353b G |
679 | /* Set TI-LFA backup nexthop info if present */ |
680 | if (path->srni.backup_label_stack) { | |
681 | SET_FLAG(zl.message, ZAPI_LABELS_HAS_BACKUPS); | |
682 | SET_FLAG(znh->flags, | |
683 | ZAPI_NEXTHOP_FLAG_HAS_BACKUP); | |
684 | ||
685 | /* Just care about a single TI-LFA backup path | |
686 | * for now */ | |
687 | znh->backup_num = 1; | |
688 | znh->backup_idx[0] = zl.backup_nexthop_num - 1; | |
689 | } | |
43e7abb5 OD |
690 | } |
691 | break; | |
5d8c8d0b DS |
692 | case ADJ_SID: |
693 | case LAN_ADJ_SID: | |
43e7abb5 OD |
694 | return; |
695 | } | |
696 | ||
697 | /* Finally, send message to zebra. */ | |
698 | (void)zebra_send_mpls_labels(zclient, ZEBRA_MPLS_LABELS_REPLACE, &zl); | |
699 | } | |
700 | ||
701 | /* Remove NHLFE for Prefix-SID */ | |
702 | void ospf_zebra_delete_prefix_sid(const struct sr_prefix *srp) | |
703 | { | |
704 | struct zapi_labels zl; | |
705 | ||
706 | osr_debug("SR (%s): Delete Labels %u for Prefix %pFX", __func__, | |
707 | srp->label_in, (struct prefix *)&srp->prefv4); | |
708 | ||
709 | /* Prepare message. */ | |
710 | memset(&zl, 0, sizeof(zl)); | |
711 | zl.type = ZEBRA_LSP_OSPF_SR; | |
712 | zl.local_label = srp->label_in; | |
713 | ||
714 | if (srp->type == PREF_SID) { | |
715 | /* Update route in the RIB too */ | |
716 | SET_FLAG(zl.message, ZAPI_LABELS_FTN); | |
717 | zl.route.prefix.u.prefix4 = srp->prefv4.prefix; | |
718 | zl.route.prefix.prefixlen = srp->prefv4.prefixlen; | |
719 | zl.route.prefix.family = srp->prefv4.family; | |
720 | zl.route.type = ZEBRA_ROUTE_OSPF; | |
721 | zl.route.instance = 0; | |
722 | } | |
723 | ||
724 | /* Send message to zebra. */ | |
725 | (void)zebra_send_mpls_labels(zclient, ZEBRA_MPLS_LABELS_DELETE, &zl); | |
726 | } | |
727 | ||
728 | /* Send MPLS Label entry to Zebra for installation or deletion */ | |
729 | void ospf_zebra_send_adjacency_sid(int cmd, struct sr_nhlfe nhlfe) | |
730 | { | |
731 | struct zapi_labels zl; | |
732 | struct zapi_nexthop *znh; | |
733 | ||
734 | osr_debug("SR (%s): %s Labels %u/%u for Adjacency via %u", __func__, | |
735 | cmd == ZEBRA_MPLS_LABELS_ADD ? "Add" : "Delete", | |
736 | nhlfe.label_in, nhlfe.label_out, nhlfe.ifindex); | |
737 | ||
738 | memset(&zl, 0, sizeof(zl)); | |
739 | zl.type = ZEBRA_LSP_OSPF_SR; | |
740 | zl.local_label = nhlfe.label_in; | |
741 | zl.nexthop_num = 1; | |
742 | znh = &zl.nexthops[0]; | |
743 | znh->type = NEXTHOP_TYPE_IPV4_IFINDEX; | |
744 | znh->gate.ipv4 = nhlfe.nexthop; | |
745 | znh->ifindex = nhlfe.ifindex; | |
746 | znh->label_num = 1; | |
747 | znh->labels[0] = nhlfe.label_out; | |
748 | ||
749 | (void)zebra_send_mpls_labels(zclient, cmd, &zl); | |
750 | } | |
751 | ||
d7c0a89a QY |
752 | struct ospf_redist *ospf_redist_lookup(struct ospf *ospf, uint8_t type, |
753 | unsigned short instance) | |
7c8ff89e | 754 | { |
d62a17ae | 755 | struct list *red_list; |
756 | struct listnode *node; | |
757 | struct ospf_redist *red; | |
7c8ff89e | 758 | |
d62a17ae | 759 | red_list = ospf->redist[type]; |
760 | if (!red_list) | |
761 | return (NULL); | |
7c8ff89e | 762 | |
d62a17ae | 763 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) |
764 | if (red->instance == instance) | |
765 | return red; | |
7c8ff89e | 766 | |
d62a17ae | 767 | return NULL; |
7c8ff89e DS |
768 | } |
769 | ||
d7c0a89a QY |
770 | struct ospf_redist *ospf_redist_add(struct ospf *ospf, uint8_t type, |
771 | unsigned short instance) | |
7c8ff89e | 772 | { |
d62a17ae | 773 | struct list *red_list; |
774 | struct ospf_redist *red; | |
7c8ff89e | 775 | |
d62a17ae | 776 | red = ospf_redist_lookup(ospf, type, instance); |
777 | if (red) | |
778 | return red; | |
7c8ff89e | 779 | |
d62a17ae | 780 | if (!ospf->redist[type]) |
781 | ospf->redist[type] = list_new(); | |
7c8ff89e | 782 | |
d62a17ae | 783 | red_list = ospf->redist[type]; |
9f5dc319 | 784 | red = XCALLOC(MTYPE_OSPF_REDISTRIBUTE, sizeof(struct ospf_redist)); |
d62a17ae | 785 | red->instance = instance; |
786 | red->dmetric.type = -1; | |
787 | red->dmetric.value = -1; | |
1fb93326 | 788 | ROUTEMAP_NAME(red) = NULL; |
789 | ROUTEMAP(red) = NULL; | |
7c8ff89e | 790 | |
d62a17ae | 791 | listnode_add(red_list, red); |
7c8ff89e | 792 | |
d62a17ae | 793 | return red; |
7c8ff89e DS |
794 | } |
795 | ||
d7c0a89a | 796 | void ospf_redist_del(struct ospf *ospf, uint8_t type, unsigned short instance) |
7c8ff89e | 797 | { |
d62a17ae | 798 | struct ospf_redist *red; |
799 | ||
800 | red = ospf_redist_lookup(ospf, type, instance); | |
801 | ||
802 | if (red) { | |
803 | listnode_delete(ospf->redist[type], red); | |
804 | if (!ospf->redist[type]->count) { | |
6a154c88 | 805 | list_delete(&ospf->redist[type]); |
d62a17ae | 806 | } |
97a69b31 | 807 | ospf_routemap_unset(red); |
7f586094 | 808 | XFREE(MTYPE_OSPF_REDISTRIBUTE, red); |
d62a17ae | 809 | } |
7c8ff89e DS |
810 | } |
811 | ||
812 | ||
d7c0a89a QY |
813 | int ospf_is_type_redistributed(struct ospf *ospf, int type, |
814 | unsigned short instance) | |
718e3744 | 815 | { |
d62a17ae | 816 | return (DEFAULT_ROUTE_TYPE(type) |
49db7a7b | 817 | ? vrf_bitmap_check(zclient->default_information[AFI_IP], |
b5a8894d | 818 | ospf->vrf_id) |
d62a17ae | 819 | : ((instance |
820 | && redist_check_instance( | |
b259f5af DS |
821 | &zclient->mi_redist[AFI_IP][type], |
822 | instance)) | |
d62a17ae | 823 | || (!instance |
824 | && vrf_bitmap_check( | |
b259f5af DS |
825 | zclient->redist[AFI_IP][type], |
826 | ospf->vrf_id)))); | |
718e3744 | 827 | } |
828 | ||
7bced643 IR |
829 | int ospf_redistribute_update(struct ospf *ospf, struct ospf_redist *red, |
830 | int type, unsigned short instance, int mtype, | |
831 | int mvalue) | |
718e3744 | 832 | { |
d62a17ae | 833 | int force = 0; |
162dbe41 | 834 | |
7bced643 IR |
835 | if (mtype != red->dmetric.type) { |
836 | red->dmetric.type = mtype; | |
837 | force = LSA_REFRESH_FORCE; | |
838 | } | |
839 | if (mvalue != red->dmetric.value) { | |
840 | red->dmetric.value = mvalue; | |
841 | force = LSA_REFRESH_FORCE; | |
162dbe41 | 842 | } |
843 | ||
7bced643 | 844 | ospf_external_lsa_refresh_type(ospf, type, instance, force); |
d62a17ae | 845 | |
7bced643 IR |
846 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
847 | zlog_debug( | |
848 | "Redistribute[%s][%d]: Refresh Type[%d], Metric[%d]", | |
849 | ospf_redist_string(type), instance, | |
850 | metric_type(ospf, type, instance), | |
851 | metric_value(ospf, type, instance)); | |
d62a17ae | 852 | |
7bced643 IR |
853 | return CMD_SUCCESS; |
854 | } | |
d62a17ae | 855 | |
7bced643 IR |
856 | int ospf_redistribute_set(struct ospf *ospf, struct ospf_redist *red, int type, |
857 | unsigned short instance, int mtype, int mvalue) | |
858 | { | |
d62a17ae | 859 | red->dmetric.type = mtype; |
860 | red->dmetric.value = mvalue; | |
861 | ||
de1ac5fd | 862 | ospf_external_add(ospf, type, instance); |
d62a17ae | 863 | |
864 | zclient_redistribute(ZEBRA_REDISTRIBUTE_ADD, zclient, AFI_IP, type, | |
b5a8894d | 865 | instance, ospf->vrf_id); |
d62a17ae | 866 | |
867 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) | |
996c9314 LB |
868 | zlog_debug( |
869 | "Redistribute[%s][%d] vrf id %u: Start Type[%d], Metric[%d]", | |
870 | ospf_redist_string(type), instance, ospf->vrf_id, | |
871 | metric_type(ospf, type, instance), | |
872 | metric_value(ospf, type, instance)); | |
d62a17ae | 873 | |
874 | ospf_asbr_status_update(ospf, ++ospf->redistribute); | |
875 | ||
876 | return CMD_SUCCESS; | |
718e3744 | 877 | } |
878 | ||
d7c0a89a QY |
879 | int ospf_redistribute_unset(struct ospf *ospf, int type, |
880 | unsigned short instance) | |
718e3744 | 881 | { |
d62a17ae | 882 | if (type == zclient->redist_default && instance == zclient->instance) |
883 | return CMD_SUCCESS; | |
718e3744 | 884 | |
d62a17ae | 885 | zclient_redistribute(ZEBRA_REDISTRIBUTE_DELETE, zclient, AFI_IP, type, |
b5a8894d | 886 | instance, ospf->vrf_id); |
cf795c5d | 887 | |
d62a17ae | 888 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
b5a8894d CS |
889 | zlog_debug("Redistribute[%s][%d] vrf id %u: Stop", |
890 | ospf_redist_string(type), instance, ospf->vrf_id); | |
718e3744 | 891 | |
d62a17ae | 892 | /* Remove the routes from OSPF table. */ |
893 | ospf_redistribute_withdraw(ospf, type, instance); | |
7c8ff89e | 894 | |
de1ac5fd | 895 | ospf_external_del(ospf, type, instance); |
718e3744 | 896 | |
d62a17ae | 897 | ospf_asbr_status_update(ospf, --ospf->redistribute); |
718e3744 | 898 | |
d62a17ae | 899 | return CMD_SUCCESS; |
718e3744 | 900 | } |
901 | ||
d62a17ae | 902 | int ospf_redistribute_default_set(struct ospf *ospf, int originate, int mtype, |
903 | int mvalue) | |
718e3744 | 904 | { |
1fb93326 | 905 | struct prefix_ipv4 p; |
906 | struct in_addr nexthop; | |
907 | int cur_originate = ospf->default_originate; | |
d5eac1e0 | 908 | const char *type_str = NULL; |
1fb93326 | 909 | |
975a328e | 910 | nexthop.s_addr = INADDR_ANY; |
1fb93326 | 911 | p.family = AF_INET; |
975a328e | 912 | p.prefix.s_addr = INADDR_ANY; |
1fb93326 | 913 | p.prefixlen = 0; |
914 | ||
d62a17ae | 915 | ospf->default_originate = originate; |
020709f9 | 916 | |
d5eac1e0 | 917 | if (cur_originate == originate) { |
1fb93326 | 918 | /* Refresh the lsa since metric might different */ |
d62a17ae | 919 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
920 | zlog_debug( | |
921 | "Redistribute[%s]: Refresh Type[%d], Metric[%d]", | |
922 | ospf_redist_string(DEFAULT_ROUTE), | |
923 | metric_type(ospf, DEFAULT_ROUTE, 0), | |
924 | metric_value(ospf, DEFAULT_ROUTE, 0)); | |
718e3744 | 925 | |
1fb93326 | 926 | ospf_external_lsa_refresh_default(ospf); |
d5eac1e0 | 927 | return CMD_SUCCESS; |
1fb93326 | 928 | } |
718e3744 | 929 | |
d5eac1e0 DL |
930 | switch (cur_originate) { |
931 | case DEFAULT_ORIGINATE_NONE: | |
932 | break; | |
933 | case DEFAULT_ORIGINATE_ZEBRA: | |
1fb93326 | 934 | zclient_redistribute_default(ZEBRA_REDISTRIBUTE_DEFAULT_DELETE, |
49db7a7b | 935 | zclient, AFI_IP, ospf->vrf_id); |
d5eac1e0 DL |
936 | ospf->redistribute--; |
937 | break; | |
938 | case DEFAULT_ORIGINATE_ALWAYS: | |
939 | ospf_external_info_delete(ospf, DEFAULT_ROUTE, 0, p); | |
940 | ospf_external_del(ospf, DEFAULT_ROUTE, 0); | |
941 | ospf->redistribute--; | |
942 | break; | |
1fb93326 | 943 | } |
718e3744 | 944 | |
d5eac1e0 DL |
945 | switch (originate) { |
946 | case DEFAULT_ORIGINATE_NONE: | |
947 | type_str = "none"; | |
948 | break; | |
949 | case DEFAULT_ORIGINATE_ZEBRA: | |
950 | type_str = "normal"; | |
951 | ospf->redistribute++; | |
952 | zclient_redistribute_default(ZEBRA_REDISTRIBUTE_DEFAULT_ADD, | |
953 | zclient, AFI_IP, ospf->vrf_id); | |
954 | break; | |
955 | case DEFAULT_ORIGINATE_ALWAYS: | |
956 | type_str = "always"; | |
957 | ospf->redistribute++; | |
958 | ospf_external_add(ospf, DEFAULT_ROUTE, 0); | |
6af89f8f JAG |
959 | ospf_external_info_add(ospf, DEFAULT_ROUTE, 0, p, 0, nexthop, 0, |
960 | DEFAULT_DEFAULT_METRIC); | |
d5eac1e0 DL |
961 | break; |
962 | } | |
718e3744 | 963 | |
d62a17ae | 964 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
d5eac1e0 DL |
965 | zlog_debug("Redistribute[DEFAULT]: %s Type[%d], Metric[%d]", |
966 | type_str, | |
967 | metric_type(ospf, DEFAULT_ROUTE, 0), | |
968 | metric_value(ospf, DEFAULT_ROUTE, 0)); | |
718e3744 | 969 | |
d5eac1e0 DL |
970 | ospf_external_lsa_refresh_default(ospf); |
971 | ospf_asbr_status_update(ospf, ospf->redistribute); | |
d62a17ae | 972 | return CMD_SUCCESS; |
718e3744 | 973 | } |
974 | ||
d62a17ae | 975 | static int ospf_external_lsa_originate_check(struct ospf *ospf, |
976 | struct external_info *ei) | |
718e3744 | 977 | { |
d62a17ae | 978 | /* If prefix is multicast, then do not originate LSA. */ |
979 | if (IN_MULTICAST(htonl(ei->p.prefix.s_addr))) { | |
980 | zlog_info( | |
96b663a3 MS |
981 | "LSA[Type5:%pI4]: Not originate AS-external-LSA, Prefix belongs multicast", |
982 | &ei->p.prefix); | |
d62a17ae | 983 | return 0; |
984 | } | |
985 | ||
986 | /* Take care of default-originate. */ | |
1fe59b44 | 987 | if (is_default_prefix4(&ei->p)) |
d62a17ae | 988 | if (ospf->default_originate == DEFAULT_ORIGINATE_NONE) { |
989 | zlog_info( | |
3efd0893 | 990 | "LSA[Type5:0.0.0.0]: Not originate AS-external-LSA for default"); |
d62a17ae | 991 | return 0; |
992 | } | |
993 | ||
994 | return 1; | |
718e3744 | 995 | } |
996 | ||
997 | /* If connected prefix is OSPF enable interface, then do not announce. */ | |
d62a17ae | 998 | int ospf_distribute_check_connected(struct ospf *ospf, struct external_info *ei) |
718e3744 | 999 | { |
d62a17ae | 1000 | struct listnode *node; |
1001 | struct ospf_interface *oi; | |
718e3744 | 1002 | |
718e3744 | 1003 | |
d62a17ae | 1004 | for (ALL_LIST_ELEMENTS_RO(ospf->oiflist, node, oi)) |
1005 | if (prefix_match(oi->address, (struct prefix *)&ei->p)) | |
1006 | return 0; | |
1007 | return 1; | |
718e3744 | 1008 | } |
1009 | ||
1febb13d S |
1010 | |
1011 | /* Apply default route-map on ei received. */ | |
1012 | int ospf_external_info_apply_default_routemap(struct ospf *ospf, | |
1013 | struct external_info *ei, | |
1014 | struct external_info *default_ei) | |
1015 | { | |
1016 | struct ospf_redist *red; | |
1017 | int type = default_ei->type; | |
1018 | struct prefix_ipv4 *p = &ei->p; | |
1019 | struct route_map_set_values save_values; | |
1020 | ||
1021 | ||
1022 | if (!ospf_external_lsa_originate_check(ospf, default_ei)) | |
1023 | return 0; | |
1024 | ||
1025 | save_values = default_ei->route_map_set; | |
1026 | ospf_reset_route_map_set_values(&default_ei->route_map_set); | |
1027 | ||
1028 | /* apply route-map if needed */ | |
1029 | red = ospf_redist_lookup(ospf, type, ospf->instance); | |
1030 | if (red && ROUTEMAP_NAME(red)) { | |
1031 | route_map_result_t ret; | |
1032 | ||
1782514f | 1033 | ret = route_map_apply(ROUTEMAP(red), (struct prefix *)p, ei); |
1febb13d S |
1034 | |
1035 | if (ret == RMAP_DENYMATCH) { | |
1036 | ei->route_map_set = save_values; | |
1037 | return 0; | |
1038 | } | |
1039 | } | |
1040 | ||
1041 | return 1; | |
1042 | } | |
1043 | ||
1044 | ||
1045 | /* | |
1046 | * Default originated is based on route-map condition then | |
1047 | * apply route-map on received external info. Originate or | |
1048 | * flush based on route-map condition. | |
1049 | */ | |
1050 | static bool ospf_external_lsa_default_routemap_apply(struct ospf *ospf, | |
1051 | struct external_info *ei, | |
1052 | int cmd) | |
1053 | { | |
1054 | struct external_info *default_ei; | |
1055 | struct prefix_ipv4 p; | |
1056 | struct ospf_lsa *lsa; | |
1057 | int ret; | |
1058 | ||
1059 | p.family = AF_INET; | |
1060 | p.prefixlen = 0; | |
1061 | p.prefix.s_addr = INADDR_ANY; | |
1062 | ||
1063 | ||
1064 | /* Get the default extenal info. */ | |
1065 | default_ei = ospf_external_info_lookup(ospf, DEFAULT_ROUTE, | |
1066 | ospf->instance, &p); | |
1067 | if (!default_ei) { | |
1068 | /* Nothing to be done here. */ | |
1069 | return false; | |
1070 | } | |
1071 | ||
1072 | if (IS_DEBUG_OSPF_DEFAULT_INFO) | |
96b663a3 MS |
1073 | zlog_debug("Apply default originate routemap on ei: %pI4 cmd: %d", |
1074 | &ei->p.prefix, cmd); | |
1febb13d S |
1075 | |
1076 | ret = ospf_external_info_apply_default_routemap(ospf, ei, default_ei); | |
1077 | ||
1078 | /* If deny then nothing to be done both in add and del case. */ | |
1079 | if (!ret) { | |
1080 | if (IS_DEBUG_OSPF_DEFAULT_INFO) | |
96b663a3 MS |
1081 | zlog_debug("Default originte routemap deny for ei: %pI4", |
1082 | &ei->p.prefix); | |
1febb13d S |
1083 | return false; |
1084 | } | |
1085 | ||
1086 | /* Get the default LSA. */ | |
1087 | lsa = ospf_external_info_find_lsa(ospf, &p); | |
1088 | ||
1089 | /* If this is add route and permit then ooriginate default. */ | |
1090 | if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD) { | |
1091 | /* If permit and default already advertise then return. */ | |
1092 | if (lsa && !IS_LSA_MAXAGE(lsa)) { | |
1093 | if (IS_DEBUG_OSPF_DEFAULT_INFO) | |
02c671af | 1094 | zlog_debug("Default lsa already originated"); |
1febb13d S |
1095 | return true; |
1096 | } | |
1097 | ||
1098 | if (IS_DEBUG_OSPF_DEFAULT_INFO) | |
1099 | zlog_debug("Originating/Refreshing default lsa"); | |
1100 | ||
1101 | if (lsa && IS_LSA_MAXAGE(lsa)) | |
1102 | /* Refresh lsa.*/ | |
63f0e941 | 1103 | ospf_external_lsa_refresh(ospf, lsa, default_ei, true, |
1104 | false); | |
1febb13d S |
1105 | else |
1106 | /* If permit and default not advertised then advertise. | |
1107 | */ | |
1108 | ospf_external_lsa_originate(ospf, default_ei); | |
1109 | ||
1110 | } else if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_DEL) { | |
1111 | /* If deny and lsa is not originated then nothing to be done.*/ | |
1112 | if (!lsa) { | |
1113 | if (IS_DEBUG_OSPF_DEFAULT_INFO) | |
1114 | zlog_debug( | |
1115 | "Default lsa not originated, not flushing"); | |
1116 | return true; | |
1117 | } | |
1118 | ||
1119 | if (IS_DEBUG_OSPF_DEFAULT_INFO) | |
1120 | zlog_debug( | |
96b663a3 MS |
1121 | "Running default route-map again as ei: %pI4 deleted", |
1122 | &ei->p.prefix); | |
1febb13d S |
1123 | /* |
1124 | * if this route delete was permitted then we need to check | |
1125 | * there are any other external info which can still trigger | |
1126 | * default route origination else flush it. | |
1127 | */ | |
907a2395 DS |
1128 | event_add_event(master, |
1129 | ospf_external_lsa_default_routemap_timer, ospf, | |
1130 | 0, &ospf->t_default_routemap_timer); | |
1febb13d S |
1131 | } |
1132 | ||
1133 | return true; | |
1134 | } | |
1135 | ||
718e3744 | 1136 | /* return 1 if external LSA must be originated, 0 otherwise */ |
d62a17ae | 1137 | int ospf_redistribute_check(struct ospf *ospf, struct external_info *ei, |
1138 | int *changed) | |
718e3744 | 1139 | { |
d62a17ae | 1140 | struct route_map_set_values save_values; |
1141 | struct prefix_ipv4 *p = &ei->p; | |
1142 | struct ospf_redist *red; | |
1fe59b44 RZ |
1143 | uint8_t type = is_default_prefix4(&ei->p) ? DEFAULT_ROUTE : ei->type; |
1144 | unsigned short instance = is_default_prefix4(&ei->p) ? 0 : ei->instance; | |
87e6e11e | 1145 | route_tag_t saved_tag = 0; |
d62a17ae | 1146 | |
1febb13d S |
1147 | /* Default is handled differently. */ |
1148 | if (type == DEFAULT_ROUTE) | |
1149 | return 1; | |
1150 | ||
d62a17ae | 1151 | if (changed) |
1152 | *changed = 0; | |
1153 | ||
1154 | if (!ospf_external_lsa_originate_check(ospf, ei)) | |
1155 | return 0; | |
1156 | ||
1157 | /* Take care connected route. */ | |
1158 | if (type == ZEBRA_ROUTE_CONNECT | |
1159 | && !ospf_distribute_check_connected(ospf, ei)) | |
1160 | return 0; | |
1161 | ||
1162 | if (!DEFAULT_ROUTE_TYPE(type) && DISTRIBUTE_NAME(ospf, type)) | |
1163 | /* distirbute-list exists, but access-list may not? */ | |
1164 | if (DISTRIBUTE_LIST(ospf, type)) | |
1165 | if (access_list_apply(DISTRIBUTE_LIST(ospf, type), p) | |
1166 | == FILTER_DENY) { | |
2dbe669b | 1167 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
d62a17ae | 1168 | zlog_debug( |
2dbe669b DA |
1169 | "Redistribute[%s]: %pFX filtered by distribute-list.", |
1170 | ospf_redist_string(type), p); | |
d62a17ae | 1171 | return 0; |
1172 | } | |
1173 | ||
1174 | save_values = ei->route_map_set; | |
1175 | ospf_reset_route_map_set_values(&ei->route_map_set); | |
04e94d39 | 1176 | |
87e6e11e | 1177 | saved_tag = ei->tag; |
04e94d39 | 1178 | /* Resetting with original route tag */ |
1179 | ei->tag = ei->orig_tag; | |
d62a17ae | 1180 | |
1181 | /* apply route-map if needed */ | |
1182 | red = ospf_redist_lookup(ospf, type, instance); | |
1183 | if (red && ROUTEMAP_NAME(red)) { | |
b68885f9 | 1184 | route_map_result_t ret; |
d62a17ae | 1185 | |
1782514f | 1186 | ret = route_map_apply(ROUTEMAP(red), (struct prefix *)p, ei); |
d62a17ae | 1187 | |
1188 | if (ret == RMAP_DENYMATCH) { | |
1189 | ei->route_map_set = save_values; | |
2dbe669b | 1190 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
d62a17ae | 1191 | zlog_debug( |
2dbe669b DA |
1192 | "Redistribute[%s]: %pFX filtered by route-map.", |
1193 | ospf_redist_string(type), p); | |
d62a17ae | 1194 | return 0; |
1195 | } | |
1196 | ||
1197 | /* check if 'route-map set' changed something */ | |
87e6e11e | 1198 | if (changed) { |
d62a17ae | 1199 | *changed = !ospf_route_map_set_compare( |
1200 | &ei->route_map_set, &save_values); | |
87e6e11e | 1201 | |
1202 | /* check if tag is modified */ | |
1203 | *changed |= (saved_tag != ei->tag); | |
1204 | } | |
d62a17ae | 1205 | } |
1206 | ||
1207 | return 1; | |
718e3744 | 1208 | } |
1209 | ||
1210 | /* OSPF route-map set for redistribution */ | |
d62a17ae | 1211 | void ospf_routemap_set(struct ospf_redist *red, const char *name) |
718e3744 | 1212 | { |
93d836e6 | 1213 | if (ROUTEMAP_NAME(red)) { |
1214 | route_map_counter_decrement(ROUTEMAP(red)); | |
d62a17ae | 1215 | free(ROUTEMAP_NAME(red)); |
93d836e6 | 1216 | } |
718e3744 | 1217 | |
d62a17ae | 1218 | ROUTEMAP_NAME(red) = strdup(name); |
1219 | ROUTEMAP(red) = route_map_lookup_by_name(name); | |
93d836e6 | 1220 | route_map_counter_increment(ROUTEMAP(red)); |
718e3744 | 1221 | } |
1222 | ||
d62a17ae | 1223 | void ospf_routemap_unset(struct ospf_redist *red) |
718e3744 | 1224 | { |
93d836e6 | 1225 | if (ROUTEMAP_NAME(red)) { |
1226 | route_map_counter_decrement(ROUTEMAP(red)); | |
d62a17ae | 1227 | free(ROUTEMAP_NAME(red)); |
93d836e6 | 1228 | } |
718e3744 | 1229 | |
d62a17ae | 1230 | ROUTEMAP_NAME(red) = NULL; |
1231 | ROUTEMAP(red) = NULL; | |
718e3744 | 1232 | } |
1233 | ||
10514170 RW |
1234 | static int ospf_zebra_gr_update(struct ospf *ospf, int command, |
1235 | uint32_t stale_time) | |
1236 | { | |
1237 | struct zapi_cap api; | |
1238 | ||
1239 | if (!zclient || zclient->sock < 0 || !ospf) | |
1240 | return 1; | |
1241 | ||
6006b807 | 1242 | memset(&api, 0, sizeof(api)); |
10514170 RW |
1243 | api.cap = command; |
1244 | api.stale_removal_time = stale_time; | |
1245 | api.vrf_id = ospf->vrf_id; | |
1246 | ||
1247 | (void)zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, | |
1248 | &api); | |
1249 | ||
1250 | return 0; | |
1251 | } | |
1252 | ||
1253 | int ospf_zebra_gr_enable(struct ospf *ospf, uint32_t stale_time) | |
1254 | { | |
1255 | return ospf_zebra_gr_update(ospf, ZEBRA_CLIENT_GR_CAPABILITIES, | |
1256 | stale_time); | |
1257 | } | |
1258 | ||
1259 | int ospf_zebra_gr_disable(struct ospf *ospf) | |
1260 | { | |
1261 | return ospf_zebra_gr_update(ospf, ZEBRA_CLIENT_GR_DISABLE, 0); | |
1262 | } | |
1263 | ||
718e3744 | 1264 | /* Zebra route add and delete treatment. */ |
121f9dee | 1265 | static int ospf_zebra_read_route(ZAPI_CALLBACK_ARGS) |
718e3744 | 1266 | { |
74489921 RW |
1267 | struct zapi_route api; |
1268 | struct prefix_ipv4 p; | |
5e43330e | 1269 | struct prefix pgen; |
d62a17ae | 1270 | unsigned long ifindex; |
1271 | struct in_addr nexthop; | |
d62a17ae | 1272 | struct external_info *ei; |
1273 | struct ospf *ospf; | |
1274 | int i; | |
1fb93326 | 1275 | uint8_t rt_type; |
d62a17ae | 1276 | |
b5a8894d | 1277 | ospf = ospf_lookup_by_vrf_id(vrf_id); |
74489921 RW |
1278 | if (ospf == NULL) |
1279 | return 0; | |
d62a17ae | 1280 | |
74489921 RW |
1281 | if (zapi_route_decode(zclient->ibuf, &api) < 0) |
1282 | return -1; | |
d62a17ae | 1283 | |
74489921 RW |
1284 | ifindex = api.nexthops[0].ifindex; |
1285 | nexthop = api.nexthops[0].gate.ipv4; | |
1fb93326 | 1286 | rt_type = api.type; |
d62a17ae | 1287 | |
74489921 | 1288 | memcpy(&p, &api.prefix, sizeof(p)); |
d62a17ae | 1289 | if (IPV4_NET127(ntohl(p.prefix.s_addr))) |
1290 | return 0; | |
1291 | ||
5e43330e FD |
1292 | pgen.family = p.family; |
1293 | pgen.prefixlen = p.prefixlen; | |
1294 | pgen.u.prefix4 = p.prefix; | |
1295 | ||
1fb93326 | 1296 | /* Re-destributed route is default route. |
1297 | * Here, route type is used as 'ZEBRA_ROUTE_KERNEL' for | |
1298 | * updating ex-info. But in resetting (no default-info | |
1299 | * originate)ZEBRA_ROUTE_MAX is used to delete the ex-info. | |
1300 | * Resolved this inconsistency by maintaining same route type. | |
1301 | */ | |
5e43330e | 1302 | if ((is_default_prefix(&pgen)) && (api.type != ZEBRA_ROUTE_OSPF)) |
1fb93326 | 1303 | rt_type = DEFAULT_ROUTE; |
1304 | ||
2dbe669b | 1305 | if (IS_DEBUG_OSPF(zebra, ZEBRA_REDISTRIBUTE)) |
6af89f8f JAG |
1306 | zlog_debug( |
1307 | "%s: cmd %s from client %s: vrf_id %d, p %pFX, metric %d", | |
1308 | __func__, zserv_command_string(cmd), | |
1309 | zebra_route_string(api.type), vrf_id, &api.prefix, | |
1310 | api.metric); | |
5c780bc9 | 1311 | |
121f9dee | 1312 | if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD) { |
d62a17ae | 1313 | /* XXX|HACK|TODO|FIXME: |
09a484dd DL |
1314 | * Maybe we should ignore reject/blackhole routes? Testing |
1315 | * shows that there is no problems though and this is only way | |
1316 | * to "summarize" routes in ASBR at the moment. Maybe we need | |
1317 | * just a better generalised solution for these types? | |
d62a17ae | 1318 | */ |
1319 | ||
74489921 | 1320 | /* Protocol tag overwrites all other tag value sent by zebra */ |
1fb93326 | 1321 | if (ospf->dtag[rt_type] > 0) |
1322 | api.tag = ospf->dtag[rt_type]; | |
d62a17ae | 1323 | |
1324 | /* | |
1325 | * Given zebra sends update for a prefix via ADD message, it | |
1326 | * should | |
1327 | * be considered as an implicit DEL for that prefix with other | |
1328 | * source | |
1329 | * types. | |
1330 | */ | |
1fb93326 | 1331 | for (i = 0; i <= ZEBRA_ROUTE_MAX; i++) |
1332 | if (i != rt_type) | |
996c9314 LB |
1333 | ospf_external_info_delete(ospf, i, api.instance, |
1334 | p); | |
d62a17ae | 1335 | |
1fb93326 | 1336 | ei = ospf_external_info_add(ospf, rt_type, api.instance, p, |
6af89f8f JAG |
1337 | ifindex, nexthop, api.tag, |
1338 | api.metric); | |
d62a17ae | 1339 | if (ei == NULL) { |
1340 | /* Nothing has changed, so nothing to do; return */ | |
1341 | return 0; | |
1342 | } | |
975a328e | 1343 | if (ospf->router_id.s_addr != INADDR_ANY) { |
1fe59b44 | 1344 | if (is_default_prefix4(&p)) |
6ec9c6a8 DS |
1345 | ospf_external_lsa_refresh_default(ospf); |
1346 | else { | |
1347 | struct ospf_external_aggr_rt *aggr; | |
1348 | struct as_external_lsa *al; | |
1349 | struct ospf_lsa *lsa = NULL; | |
1350 | struct in_addr mask; | |
1351 | ||
1352 | aggr = ospf_external_aggr_match(ospf, &ei->p); | |
1353 | ||
1354 | if (aggr) { | |
1355 | /* Check the AS-external-LSA | |
1356 | * should be originated. | |
1357 | */ | |
1358 | if (!ospf_redistribute_check(ospf, ei, | |
1359 | NULL)) | |
1360 | return 0; | |
1361 | ||
1362 | if (IS_DEBUG_OSPF(lsa, EXTNL_LSA_AGGR)) | |
1363 | zlog_debug( | |
1364 | "%s: Send Aggreate LSA (%pI4/%d)", | |
1365 | __func__, | |
1366 | &aggr->p.prefix, | |
1367 | aggr->p.prefixlen); | |
1368 | ||
1369 | ospf_originate_summary_lsa(ospf, aggr, | |
1370 | ei); | |
1371 | ||
1372 | /* Handling the case where the | |
1373 | * external route prefix | |
1374 | * and aggegate prefix is same | |
1461559c | 1375 | * If same don't flush the |
6ec9c6a8 DS |
1376 | * originated |
1377 | * external LSA. | |
1378 | */ | |
1379 | if (prefix_same( | |
1380 | (struct prefix *)&aggr->p, | |
1381 | (struct prefix *)&ei->p)) | |
1382 | return 0; | |
1383 | ||
1384 | lsa = ospf_external_info_find_lsa( | |
1385 | ospf, &ei->p); | |
1386 | ||
1387 | if (lsa) { | |
1388 | al = (struct as_external_lsa *) | |
1389 | lsa->data; | |
1390 | masklen2ip(ei->p.prefixlen, | |
1391 | &mask); | |
1392 | ||
1393 | if (mask.s_addr | |
1394 | != al->mask.s_addr) | |
1395 | return 0; | |
960417cf | 1396 | |
6ec9c6a8 DS |
1397 | ospf_external_lsa_flush( |
1398 | ospf, ei->type, &ei->p, | |
1399 | 0); | |
1400 | } | |
1401 | } else { | |
1402 | struct ospf_lsa *current; | |
1403 | ||
1404 | current = ospf_external_info_find_lsa( | |
1405 | ospf, &ei->p); | |
1406 | if (!current) { | |
1407 | /* Check the | |
1408 | * AS-external-LSA | |
1409 | * should be | |
1410 | * originated. | |
960417cf | 1411 | */ |
1412 | if (!ospf_redistribute_check( | |
1413 | ospf, ei, NULL)) | |
1414 | return 0; | |
d62a17ae | 1415 | |
6ec9c6a8 DS |
1416 | ospf_external_lsa_originate( |
1417 | ospf, ei); | |
1418 | } else { | |
d62a17ae | 1419 | if (IS_DEBUG_OSPF( |
6ec9c6a8 DS |
1420 | zebra, |
1421 | ZEBRA_REDISTRIBUTE)) | |
d62a17ae | 1422 | zlog_debug( |
6ec9c6a8 | 1423 | "%s: %pI4 refreshing LSA", |
960417cf | 1424 | __func__, |
6ec9c6a8 DS |
1425 | &p.prefix); |
1426 | ospf_external_lsa_refresh( | |
1427 | ospf, current, ei, | |
1428 | LSA_REFRESH_FORCE, | |
1429 | false); | |
d62a17ae | 1430 | } |
1431 | } | |
1432 | } | |
1433 | } | |
1febb13d S |
1434 | |
1435 | /* | |
1436 | * Check if default-information originate is | |
1437 | * with some routemap prefix/access list match. | |
1438 | */ | |
1439 | ospf_external_lsa_default_routemap_apply(ospf, ei, cmd); | |
1440 | ||
6ec9c6a8 | 1441 | } else { /* if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_DEL) */ |
960417cf | 1442 | struct ospf_external_aggr_rt *aggr; |
1443 | ||
1febb13d | 1444 | ei = ospf_external_info_lookup(ospf, rt_type, api.instance, &p); |
960417cf | 1445 | if (ei == NULL) |
1446 | return 0; | |
6ec9c6a8 DS |
1447 | |
1448 | /* | |
1449 | * Check if default-information originate i | |
1450 | * with some routemap prefix/access list match. | |
1451 | * Apply before ei is deleted. | |
1452 | */ | |
1453 | ospf_external_lsa_default_routemap_apply(ospf, ei, cmd); | |
1febb13d | 1454 | |
960417cf | 1455 | aggr = ospf_external_aggr_match(ospf, &ei->p); |
1456 | ||
1457 | if (aggr && (ei->aggr_route == aggr)) { | |
1458 | ospf_unlink_ei_from_aggr(ospf, aggr, ei); | |
1459 | ||
1460 | ospf_external_info_delete(ospf, rt_type, api.instance, | |
1461 | p); | |
1462 | } else { | |
1463 | ospf_external_info_delete(ospf, rt_type, api.instance, | |
1464 | p); | |
1465 | ||
1fe59b44 | 1466 | if (is_default_prefix4(&p)) |
960417cf | 1467 | ospf_external_lsa_refresh_default(ospf); |
1468 | else | |
1469 | ospf_external_lsa_flush(ospf, rt_type, &p, | |
1470 | ifindex /*, nexthop */); | |
1471 | } | |
5048fe14 | 1472 | } |
d62a17ae | 1473 | |
1474 | return 0; | |
718e3744 | 1475 | } |
6b0655a2 | 1476 | |
017714e3 RW |
1477 | void ospf_zebra_import_default_route(struct ospf *ospf, bool unreg) |
1478 | { | |
1479 | struct prefix prefix = {}; | |
1480 | int command; | |
1481 | ||
1482 | if (zclient->sock < 0) { | |
1483 | if (IS_DEBUG_OSPF(zebra, ZEBRA)) | |
1484 | zlog_debug(" Not connected to Zebra"); | |
1485 | return; | |
1486 | } | |
1487 | ||
1488 | prefix.family = AF_INET; | |
1489 | prefix.prefixlen = 0; | |
1490 | ||
1491 | if (unreg) | |
1492 | command = ZEBRA_NEXTHOP_UNREGISTER; | |
1493 | else | |
1494 | command = ZEBRA_NEXTHOP_REGISTER; | |
1495 | ||
1496 | if (IS_DEBUG_OSPF(zebra, ZEBRA)) | |
1497 | zlog_debug("%s: sending cmd %s for %pFX (vrf %u)", __func__, | |
1498 | zserv_command_string(command), &prefix, | |
1499 | ospf->vrf_id); | |
1500 | ||
1501 | if (zclient_send_rnh(zclient, command, &prefix, SAFI_UNICAST, false, | |
1502 | true, ospf->vrf_id) == ZCLIENT_SEND_FAILURE) | |
1503 | flog_err(EC_LIB_ZAPI_SOCKET, "%s: zclient_send_rnh() failed", | |
1504 | __func__); | |
1505 | } | |
1506 | ||
1507 | static int ospf_zebra_import_check_update(ZAPI_CALLBACK_ARGS) | |
1508 | { | |
1509 | struct ospf *ospf; | |
1510 | struct zapi_route nhr; | |
1511 | struct prefix matched; | |
1512 | ||
1513 | ospf = ospf_lookup_by_vrf_id(vrf_id); | |
1514 | if (ospf == NULL || !IS_OSPF_ASBR(ospf)) | |
1515 | return 0; | |
1516 | ||
1517 | if (!zapi_nexthop_update_decode(zclient->ibuf, &matched, &nhr)) { | |
1518 | zlog_err("%s[%u]: Failure to decode route", __func__, | |
1519 | ospf->vrf_id); | |
1520 | return -1; | |
1521 | } | |
1522 | ||
1523 | if (matched.family != AF_INET || matched.prefixlen != 0 || | |
1524 | nhr.type == ZEBRA_ROUTE_OSPF) | |
1525 | return 0; | |
1526 | ||
1527 | ospf->nssa_default_import_check.status = !!nhr.nexthop_num; | |
1528 | ospf_abr_nssa_type7_defaults(ospf); | |
1529 | ||
1530 | return 0; | |
1531 | } | |
cf795c5d | 1532 | |
d62a17ae | 1533 | int ospf_distribute_list_out_set(struct ospf *ospf, int type, const char *name) |
718e3744 | 1534 | { |
d62a17ae | 1535 | /* Lookup access-list for distribute-list. */ |
1536 | DISTRIBUTE_LIST(ospf, type) = access_list_lookup(AFI_IP, name); | |
718e3744 | 1537 | |
d62a17ae | 1538 | /* Clear previous distribute-name. */ |
1539 | if (DISTRIBUTE_NAME(ospf, type)) | |
1540 | free(DISTRIBUTE_NAME(ospf, type)); | |
718e3744 | 1541 | |
d62a17ae | 1542 | /* Set distribute-name. */ |
1543 | DISTRIBUTE_NAME(ospf, type) = strdup(name); | |
718e3744 | 1544 | |
d62a17ae | 1545 | /* If access-list have been set, schedule update timer. */ |
1546 | if (DISTRIBUTE_LIST(ospf, type)) | |
1547 | ospf_distribute_list_update(ospf, type, 0); | |
718e3744 | 1548 | |
d62a17ae | 1549 | return CMD_SUCCESS; |
718e3744 | 1550 | } |
1551 | ||
d62a17ae | 1552 | int ospf_distribute_list_out_unset(struct ospf *ospf, int type, |
1553 | const char *name) | |
718e3744 | 1554 | { |
d62a17ae | 1555 | /* Schedule update timer. */ |
1556 | if (DISTRIBUTE_LIST(ospf, type)) | |
1557 | ospf_distribute_list_update(ospf, type, 0); | |
718e3744 | 1558 | |
d62a17ae | 1559 | /* Unset distribute-list. */ |
1560 | DISTRIBUTE_LIST(ospf, type) = NULL; | |
718e3744 | 1561 | |
d62a17ae | 1562 | /* Clear distribute-name. */ |
1563 | if (DISTRIBUTE_NAME(ospf, type)) | |
1564 | free(DISTRIBUTE_NAME(ospf, type)); | |
cf795c5d | 1565 | |
d62a17ae | 1566 | DISTRIBUTE_NAME(ospf, type) = NULL; |
718e3744 | 1567 | |
d62a17ae | 1568 | return CMD_SUCCESS; |
718e3744 | 1569 | } |
1570 | ||
1571 | /* distribute-list update timer. */ | |
e6685141 | 1572 | static void ospf_distribute_list_update_timer(struct event *thread) |
718e3744 | 1573 | { |
d62a17ae | 1574 | struct route_node *rn; |
1575 | struct external_info *ei; | |
1576 | struct route_table *rt; | |
1577 | struct ospf_lsa *lsa; | |
dcaed63d | 1578 | int type, default_refresh = 0; |
e16d030c | 1579 | struct ospf *ospf = EVENT_ARG(thread); |
d62a17ae | 1580 | |
d62a17ae | 1581 | if (ospf == NULL) |
cc9f21da | 1582 | return; |
d62a17ae | 1583 | |
1584 | ospf->t_distribute_update = NULL; | |
1585 | ||
1586 | zlog_info("Zebra[Redistribute]: distribute-list update timer fired!"); | |
1587 | ||
b5a8894d | 1588 | if (IS_DEBUG_OSPF_EVENT) { |
dcaed63d IR |
1589 | zlog_debug("%s: ospf distribute-list update vrf %s id %d", |
1590 | __func__, ospf_vrf_id_to_name(ospf->vrf_id), | |
1591 | ospf->vrf_id); | |
b5a8894d CS |
1592 | } |
1593 | ||
d62a17ae | 1594 | /* foreach all external info. */ |
1595 | for (type = 0; type <= ZEBRA_ROUTE_MAX; type++) { | |
1596 | struct list *ext_list; | |
1597 | struct listnode *node; | |
1598 | struct ospf_external *ext; | |
1599 | ||
de1ac5fd | 1600 | ext_list = ospf->external[type]; |
d62a17ae | 1601 | if (!ext_list) |
1602 | continue; | |
1603 | ||
1604 | for (ALL_LIST_ELEMENTS_RO(ext_list, node, ext)) { | |
1605 | rt = ext->external_info; | |
1606 | if (!rt) | |
1607 | continue; | |
6ec9c6a8 DS |
1608 | for (rn = route_top(rt); rn; rn = route_next(rn)) { |
1609 | ei = rn->info; | |
1610 | if (!ei) | |
1611 | continue; | |
1612 | ||
1fe59b44 | 1613 | if (is_default_prefix4(&ei->p)) |
6ec9c6a8 DS |
1614 | default_refresh = 1; |
1615 | else { | |
1616 | struct ospf_external_aggr_rt *aggr; | |
1617 | ||
1618 | aggr = ospf_external_aggr_match(ospf, | |
1619 | &ei->p); | |
1620 | if (aggr) { | |
1621 | /* Check the | |
1622 | * AS-external-LSA | |
1623 | * should be originated. | |
1624 | */ | |
1625 | if (!ospf_redistribute_check( | |
1626 | ospf, ei, NULL)) { | |
1627 | ||
1628 | ospf_unlink_ei_from_aggr( | |
960417cf | 1629 | ospf, aggr, ei); |
6ec9c6a8 | 1630 | continue; |
960417cf | 1631 | } |
6ec9c6a8 DS |
1632 | |
1633 | if (IS_DEBUG_OSPF( | |
1634 | lsa, | |
1635 | EXTNL_LSA_AGGR)) | |
1636 | zlog_debug( | |
1637 | "%s: Send Aggregate LSA (%pI4/%d)", | |
1638 | __func__, | |
1639 | &aggr->p.prefix, | |
1640 | aggr->p.prefixlen); | |
1641 | ||
1642 | /* Originate Aggregate | |
1643 | * LSA | |
1644 | */ | |
1645 | ospf_originate_summary_lsa( | |
1646 | ospf, aggr, ei); | |
1647 | } else if ( | |
1648 | (lsa = ospf_external_info_find_lsa( | |
1649 | ospf, &ei->p))) { | |
1650 | int force = | |
1651 | LSA_REFRESH_IF_CHANGED; | |
1652 | /* If this is a MaxAge | |
1653 | * LSA, we need to | |
1654 | * force refresh it | |
1655 | * because distribute | |
1656 | * settings might have | |
1657 | * changed and now, | |
1658 | * this LSA needs to be | |
1659 | * originated, not be | |
1660 | * removed. | |
1661 | * If we don't force | |
1662 | * refresh it, it will | |
1663 | * remain a MaxAge LSA | |
1664 | * because it will look | |
1665 | * like it hasn't | |
1666 | * changed. Neighbors | |
1667 | * will not receive | |
1668 | * updates for this LSA. | |
1669 | */ | |
1670 | if (IS_LSA_MAXAGE(lsa)) | |
1671 | force = LSA_REFRESH_FORCE; | |
1672 | ||
1673 | ospf_external_lsa_refresh( | |
1674 | ospf, lsa, ei, force, | |
1675 | false); | |
1676 | } else { | |
1677 | if (!ospf_redistribute_check( | |
1678 | ospf, ei, NULL)) | |
1679 | continue; | |
1680 | ospf_external_lsa_originate( | |
1681 | ospf, ei); | |
960417cf | 1682 | } |
d62a17ae | 1683 | } |
6ec9c6a8 | 1684 | } |
d62a17ae | 1685 | } |
1686 | } | |
1687 | if (default_refresh) | |
1688 | ospf_external_lsa_refresh_default(ospf); | |
718e3744 | 1689 | } |
1690 | ||
718e3744 | 1691 | /* Update distribute-list and set timer to apply access-list. */ |
d7c0a89a QY |
1692 | void ospf_distribute_list_update(struct ospf *ospf, int type, |
1693 | unsigned short instance) | |
718e3744 | 1694 | { |
d62a17ae | 1695 | struct ospf_external *ext; |
b5a8894d | 1696 | |
d62a17ae | 1697 | /* External info does not exist. */ |
de1ac5fd | 1698 | ext = ospf_external_lookup(ospf, type, instance); |
dcaed63d | 1699 | if (!ext || !EXTERNAL_INFO(ext)) |
d62a17ae | 1700 | return; |
1701 | ||
dcaed63d | 1702 | /* Set timer. If timer is already started, this call does nothing. */ |
907a2395 DS |
1703 | event_add_timer_msec(master, ospf_distribute_list_update_timer, ospf, |
1704 | ospf->min_ls_interval, &ospf->t_distribute_update); | |
718e3744 | 1705 | } |
1706 | ||
1707 | /* If access-list is updated, apply some check. */ | |
d62a17ae | 1708 | static void ospf_filter_update(struct access_list *access) |
718e3744 | 1709 | { |
d62a17ae | 1710 | struct ospf *ospf; |
1711 | int type; | |
1712 | int abr_inv = 0; | |
1713 | struct ospf_area *area; | |
b5a8894d | 1714 | struct listnode *node, *n1; |
d62a17ae | 1715 | |
1716 | /* If OSPF instance does not exist, return right now. */ | |
b5a8894d | 1717 | if (listcount(om->ospf) == 0) |
d62a17ae | 1718 | return; |
1719 | ||
b5a8894d | 1720 | /* Iterate all ospf [VRF] instances */ |
43b8d1d8 | 1721 | for (ALL_LIST_ELEMENTS_RO(om->ospf, n1, ospf)) { |
b5a8894d CS |
1722 | /* Update distribute-list, and apply filter. */ |
1723 | for (type = 0; type <= ZEBRA_ROUTE_MAX; type++) { | |
1724 | struct list *red_list; | |
b5a8894d CS |
1725 | struct ospf_redist *red; |
1726 | ||
1727 | red_list = ospf->redist[type]; | |
1728 | if (red_list) | |
996c9314 LB |
1729 | for (ALL_LIST_ELEMENTS_RO(red_list, node, |
1730 | red)) { | |
b5a8894d | 1731 | if (ROUTEMAP(red)) { |
996c9314 LB |
1732 | /* if route-map is not NULL it |
1733 | * may be | |
b5a8894d CS |
1734 | * using this access list */ |
1735 | ospf_distribute_list_update( | |
996c9314 LB |
1736 | ospf, type, |
1737 | red->instance); | |
b5a8894d | 1738 | } |
d62a17ae | 1739 | } |
d62a17ae | 1740 | |
b5a8894d CS |
1741 | /* There is place for route-map for default-information |
1742 | * (ZEBRA_ROUTE_MAX), | |
1743 | * but no distribute list. */ | |
1744 | if (type == ZEBRA_ROUTE_MAX) | |
1745 | break; | |
1746 | ||
1747 | if (DISTRIBUTE_NAME(ospf, type)) { | |
1748 | /* Keep old access-list for distribute-list. */ | |
996c9314 LB |
1749 | struct access_list *old = |
1750 | DISTRIBUTE_LIST(ospf, type); | |
b5a8894d CS |
1751 | |
1752 | /* Update access-list for distribute-list. */ | |
996c9314 LB |
1753 | DISTRIBUTE_LIST(ospf, type) = |
1754 | access_list_lookup( | |
1755 | AFI_IP, | |
1756 | DISTRIBUTE_NAME(ospf, type)); | |
b5a8894d CS |
1757 | |
1758 | /* No update for this distribute type. */ | |
996c9314 LB |
1759 | if (old == NULL |
1760 | && DISTRIBUTE_LIST(ospf, type) == NULL) | |
b5a8894d CS |
1761 | continue; |
1762 | ||
1763 | /* Schedule distribute-list update timer. */ | |
1764 | if (DISTRIBUTE_LIST(ospf, type) == NULL | |
996c9314 LB |
1765 | || strcmp(DISTRIBUTE_NAME(ospf, type), |
1766 | access->name) | |
1767 | == 0) | |
1768 | ospf_distribute_list_update(ospf, type, | |
1769 | 0); | |
b5a8894d | 1770 | } |
d62a17ae | 1771 | } |
d62a17ae | 1772 | |
b5a8894d CS |
1773 | /* Update Area access-list. */ |
1774 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, node, area)) { | |
1775 | if (EXPORT_NAME(area)) { | |
1776 | EXPORT_LIST(area) = NULL; | |
1777 | abr_inv++; | |
1778 | } | |
d62a17ae | 1779 | |
b5a8894d CS |
1780 | if (IMPORT_NAME(area)) { |
1781 | IMPORT_LIST(area) = NULL; | |
1782 | abr_inv++; | |
1783 | } | |
d62a17ae | 1784 | } |
d62a17ae | 1785 | |
b5a8894d CS |
1786 | /* Schedule ABR tasks -- this will be changed -- takada. */ |
1787 | if (IS_OSPF_ABR(ospf) && abr_inv) | |
1788 | ospf_schedule_abr_task(ospf); | |
1789 | } | |
718e3744 | 1790 | } |
dd669bb0 | 1791 | |
1792 | /* If prefix-list is updated, do some updates. */ | |
2d4093ee | 1793 | static void ospf_prefix_list_update(struct prefix_list *plist) |
dd669bb0 | 1794 | { |
b5a8894d | 1795 | struct ospf *ospf = NULL; |
d62a17ae | 1796 | int type; |
1797 | int abr_inv = 0; | |
1798 | struct ospf_area *area; | |
b5a8894d | 1799 | struct listnode *node, *n1; |
d62a17ae | 1800 | |
1801 | /* If OSPF instatnce does not exist, return right now. */ | |
b5a8894d | 1802 | if (listcount(om->ospf) == 0) |
d62a17ae | 1803 | return; |
1804 | ||
b5a8894d CS |
1805 | /* Iterate all ospf [VRF] instances */ |
1806 | for (ALL_LIST_ELEMENTS_RO(om->ospf, n1, ospf)) { | |
1807 | ||
1808 | /* Update all route-maps which are used | |
1809 | * as redistribution filters. | |
1810 | * They might use prefix-list. | |
1811 | */ | |
1812 | for (type = 0; type <= ZEBRA_ROUTE_MAX; type++) { | |
1813 | struct list *red_list; | |
b5a8894d CS |
1814 | struct ospf_redist *red; |
1815 | ||
1816 | red_list = ospf->redist[type]; | |
6ec9c6a8 DS |
1817 | if (!red_list) |
1818 | continue; | |
1819 | ||
1820 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) { | |
1821 | if (ROUTEMAP(red)) { | |
1822 | /* if route-map is not NULL | |
1823 | * it may be using | |
1824 | * this prefix list */ | |
1825 | ospf_distribute_list_update( | |
1826 | ospf, type, red->instance); | |
d62a17ae | 1827 | } |
1828 | } | |
b5a8894d | 1829 | } |
d62a17ae | 1830 | |
b5a8894d CS |
1831 | /* Update area filter-lists. */ |
1832 | for (ALL_LIST_ELEMENTS_RO(ospf->areas, node, area)) { | |
1833 | /* Update filter-list in. */ | |
6ec9c6a8 DS |
1834 | if (PREFIX_NAME_IN(area) |
1835 | && strcmp(PREFIX_NAME_IN(area), | |
1836 | prefix_list_name(plist)) | |
1837 | == 0) { | |
1838 | PREFIX_LIST_IN(area) = prefix_list_lookup( | |
1839 | AFI_IP, PREFIX_NAME_IN(area)); | |
1840 | abr_inv++; | |
1841 | } | |
d62a17ae | 1842 | |
b5a8894d | 1843 | /* Update filter-list out. */ |
6ec9c6a8 DS |
1844 | if (PREFIX_NAME_OUT(area) |
1845 | && strcmp(PREFIX_NAME_OUT(area), | |
1846 | prefix_list_name(plist)) | |
1847 | == 0) { | |
9629b44f | 1848 | PREFIX_LIST_OUT(area) = prefix_list_lookup( |
6ec9c6a8 DS |
1849 | AFI_IP, PREFIX_NAME_OUT(area)); |
1850 | abr_inv++; | |
1851 | } | |
b5a8894d | 1852 | } |
d62a17ae | 1853 | |
b5a8894d CS |
1854 | /* Schedule ABR task. */ |
1855 | if (IS_OSPF_ABR(ospf) && abr_inv) | |
1856 | ospf_schedule_abr_task(ospf); | |
1857 | } | |
dd669bb0 | 1858 | } |
cf795c5d | 1859 | |
d62a17ae | 1860 | static struct ospf_distance *ospf_distance_new(void) |
718e3744 | 1861 | { |
d62a17ae | 1862 | return XCALLOC(MTYPE_OSPF_DISTANCE, sizeof(struct ospf_distance)); |
718e3744 | 1863 | } |
1864 | ||
d62a17ae | 1865 | static void ospf_distance_free(struct ospf_distance *odistance) |
718e3744 | 1866 | { |
d62a17ae | 1867 | XFREE(MTYPE_OSPF_DISTANCE, odistance); |
718e3744 | 1868 | } |
1869 | ||
d62a17ae | 1870 | int ospf_distance_set(struct vty *vty, struct ospf *ospf, |
1871 | const char *distance_str, const char *ip_str, | |
1872 | const char *access_list_str) | |
718e3744 | 1873 | { |
d62a17ae | 1874 | int ret; |
1875 | struct prefix_ipv4 p; | |
d7c0a89a | 1876 | uint8_t distance; |
d62a17ae | 1877 | struct route_node *rn; |
1878 | struct ospf_distance *odistance; | |
1879 | ||
1880 | ret = str2prefix_ipv4(ip_str, &p); | |
1881 | if (ret == 0) { | |
1882 | vty_out(vty, "Malformed prefix\n"); | |
1883 | return CMD_WARNING_CONFIG_FAILED; | |
1884 | } | |
1885 | ||
1886 | distance = atoi(distance_str); | |
1887 | ||
1888 | /* Get OSPF distance node. */ | |
1889 | rn = route_node_get(ospf->distance_table, (struct prefix *)&p); | |
1890 | if (rn->info) { | |
1891 | odistance = rn->info; | |
1892 | route_unlock_node(rn); | |
1893 | } else { | |
1894 | odistance = ospf_distance_new(); | |
1895 | rn->info = odistance; | |
1896 | } | |
1897 | ||
1898 | /* Set distance value. */ | |
1899 | odistance->distance = distance; | |
1900 | ||
1901 | /* Reset access-list configuration. */ | |
1902 | if (odistance->access_list) { | |
1903 | free(odistance->access_list); | |
1904 | odistance->access_list = NULL; | |
1905 | } | |
1906 | if (access_list_str) | |
1907 | odistance->access_list = strdup(access_list_str); | |
1908 | ||
1909 | return CMD_SUCCESS; | |
718e3744 | 1910 | } |
1911 | ||
d62a17ae | 1912 | int ospf_distance_unset(struct vty *vty, struct ospf *ospf, |
1913 | const char *distance_str, const char *ip_str, | |
1914 | char const *access_list_str) | |
718e3744 | 1915 | { |
d62a17ae | 1916 | int ret; |
1917 | struct prefix_ipv4 p; | |
1918 | struct route_node *rn; | |
1919 | struct ospf_distance *odistance; | |
1920 | ||
1921 | ret = str2prefix_ipv4(ip_str, &p); | |
1922 | if (ret == 0) { | |
1923 | vty_out(vty, "Malformed prefix\n"); | |
1924 | return CMD_WARNING_CONFIG_FAILED; | |
1925 | } | |
1926 | ||
1927 | rn = route_node_lookup(ospf->distance_table, (struct prefix *)&p); | |
1928 | if (!rn) { | |
1929 | vty_out(vty, "Can't find specified prefix\n"); | |
1930 | return CMD_WARNING_CONFIG_FAILED; | |
1931 | } | |
1932 | ||
1933 | odistance = rn->info; | |
1934 | ||
1935 | if (odistance->access_list) | |
1936 | free(odistance->access_list); | |
1937 | ospf_distance_free(odistance); | |
1938 | ||
1939 | rn->info = NULL; | |
1940 | route_unlock_node(rn); | |
1941 | route_unlock_node(rn); | |
1942 | ||
1943 | return CMD_SUCCESS; | |
718e3744 | 1944 | } |
1945 | ||
d62a17ae | 1946 | void ospf_distance_reset(struct ospf *ospf) |
718e3744 | 1947 | { |
d62a17ae | 1948 | struct route_node *rn; |
1949 | struct ospf_distance *odistance; | |
1950 | ||
6ec9c6a8 DS |
1951 | for (rn = route_top(ospf->distance_table); rn; rn = route_next(rn)) { |
1952 | odistance = rn->info; | |
1953 | if (!odistance) | |
1954 | continue; | |
1955 | ||
1956 | if (odistance->access_list) | |
1957 | free(odistance->access_list); | |
1958 | ospf_distance_free(odistance); | |
1959 | rn->info = NULL; | |
1960 | route_unlock_node(rn); | |
1961 | } | |
718e3744 | 1962 | } |
1963 | ||
d7c0a89a QY |
1964 | uint8_t ospf_distance_apply(struct ospf *ospf, struct prefix_ipv4 *p, |
1965 | struct ospf_route * or) | |
718e3744 | 1966 | { |
718e3744 | 1967 | |
d62a17ae | 1968 | if (ospf == NULL) |
1969 | return 0; | |
718e3744 | 1970 | |
6ec9c6a8 DS |
1971 | if (ospf->distance_intra && or->path_type == OSPF_PATH_INTRA_AREA) |
1972 | return ospf->distance_intra; | |
718e3744 | 1973 | |
6ec9c6a8 DS |
1974 | if (ospf->distance_inter && or->path_type == OSPF_PATH_INTER_AREA) |
1975 | return ospf->distance_inter; | |
718e3744 | 1976 | |
6ec9c6a8 DS |
1977 | if (ospf->distance_external |
1978 | && (or->path_type == OSPF_PATH_TYPE1_EXTERNAL || | |
1979 | or->path_type == OSPF_PATH_TYPE2_EXTERNAL)) | |
1980 | return ospf->distance_external; | |
cf795c5d | 1981 | |
d62a17ae | 1982 | if (ospf->distance_all) |
1983 | return ospf->distance_all; | |
718e3744 | 1984 | |
d62a17ae | 1985 | return 0; |
718e3744 | 1986 | } |
1987 | ||
b5a8894d CS |
1988 | void ospf_zebra_vrf_register(struct ospf *ospf) |
1989 | { | |
1990 | if (!zclient || zclient->sock < 0 || !ospf) | |
1991 | return; | |
1992 | ||
6021c6c0 | 1993 | if (ospf->vrf_id != VRF_UNKNOWN) { |
b5a8894d | 1994 | if (IS_DEBUG_OSPF_EVENT) |
15569c58 | 1995 | zlog_debug("%s: Register VRF %s id %u", __func__, |
b5a8894d CS |
1996 | ospf_vrf_id_to_name(ospf->vrf_id), |
1997 | ospf->vrf_id); | |
1998 | zclient_send_reg_requests(zclient, ospf->vrf_id); | |
1999 | } | |
2000 | } | |
2001 | ||
2002 | void ospf_zebra_vrf_deregister(struct ospf *ospf) | |
2003 | { | |
2004 | if (!zclient || zclient->sock < 0 || !ospf) | |
2005 | return; | |
2006 | ||
2007 | if (ospf->vrf_id != VRF_DEFAULT && ospf->vrf_id != VRF_UNKNOWN) { | |
2008 | if (IS_DEBUG_OSPF_EVENT) | |
6021c6c0 | 2009 | zlog_debug("%s: De-Register VRF %s id %u to Zebra.", |
15569c58 | 2010 | __func__, ospf_vrf_id_to_name(ospf->vrf_id), |
b5a8894d CS |
2011 | ospf->vrf_id); |
2012 | /* Deregister for router-id, interfaces, | |
2013 | * redistributed routes. */ | |
2014 | zclient_send_dereg_requests(zclient, ospf->vrf_id); | |
2015 | } | |
2016 | } | |
b61264a8 | 2017 | |
d81b8e0e OD |
2018 | /* Label Manager Functions */ |
2019 | ||
2020 | /** | |
2021 | * Check if Label Manager is Ready or not. | |
2022 | * | |
2023 | * @return True if Label Manager is ready, False otherwise | |
2024 | */ | |
2025 | bool ospf_zebra_label_manager_ready(void) | |
2026 | { | |
2027 | return (zclient_sync->sock > 0); | |
2028 | } | |
2029 | ||
2030 | /** | |
2031 | * Request Label Range to the Label Manager. | |
2032 | * | |
2033 | * @param base base label of the label range to request | |
2034 | * @param chunk_size size of the label range to request | |
2035 | * | |
2036 | * @return 0 on success, -1 on failure | |
2037 | */ | |
2038 | int ospf_zebra_request_label_range(uint32_t base, uint32_t chunk_size) | |
2039 | { | |
2040 | int ret; | |
2041 | uint32_t start, end; | |
2042 | ||
2043 | if (zclient_sync->sock < 0) | |
2044 | return -1; | |
2045 | ||
2046 | ret = lm_get_label_chunk(zclient_sync, 0, base, chunk_size, &start, | |
2047 | &end); | |
2048 | if (ret < 0) { | |
2049 | zlog_warn("%s: error getting label range!", __func__); | |
2050 | return -1; | |
2051 | } | |
2052 | ||
2053 | return 0; | |
2054 | } | |
2055 | ||
2056 | /** | |
2057 | * Release Label Range to the Label Manager. | |
2058 | * | |
2059 | * @param start start of label range to release | |
2060 | * @param end end of label range to release | |
2061 | * | |
2062 | * @return 0 on success, -1 otherwise | |
2063 | */ | |
2064 | int ospf_zebra_release_label_range(uint32_t start, uint32_t end) | |
2065 | { | |
2066 | int ret; | |
2067 | ||
2068 | if (zclient_sync->sock < 0) | |
2069 | return -1; | |
2070 | ||
2071 | ret = lm_release_label_chunk(zclient_sync, start, end); | |
2072 | if (ret < 0) { | |
2073 | zlog_warn("%s: error releasing label range!", __func__); | |
2074 | return -1; | |
2075 | } | |
2076 | ||
2077 | return 0; | |
2078 | } | |
2079 | ||
2080 | /** | |
2081 | * Connect to the Label Manager. | |
2082 | * | |
2083 | * @return 0 on success, -1 otherwise | |
2084 | */ | |
2085 | int ospf_zebra_label_manager_connect(void) | |
2086 | { | |
2087 | /* Connect to label manager. */ | |
2088 | if (zclient_socket_connect(zclient_sync) < 0) { | |
2089 | zlog_warn("%s: failed connecting synchronous zclient!", | |
2090 | __func__); | |
2091 | return -1; | |
2092 | } | |
2093 | /* make socket non-blocking */ | |
2094 | set_nonblocking(zclient_sync->sock); | |
2095 | ||
2096 | /* Send hello to notify zebra this is a synchronous client */ | |
7cfdb485 | 2097 | if (zclient_send_hello(zclient_sync) == ZCLIENT_SEND_FAILURE) { |
d81b8e0e OD |
2098 | zlog_warn("%s: failed sending hello for synchronous zclient!", |
2099 | __func__); | |
2100 | close(zclient_sync->sock); | |
2101 | zclient_sync->sock = -1; | |
2102 | return -1; | |
2103 | } | |
2104 | ||
2105 | /* Connect to label manager */ | |
2106 | if (lm_label_manager_connect(zclient_sync, 0) != 0) { | |
2107 | zlog_warn("%s: failed connecting to label manager!", __func__); | |
2108 | if (zclient_sync->sock > 0) { | |
2109 | close(zclient_sync->sock); | |
2110 | zclient_sync->sock = -1; | |
2111 | } | |
2112 | return -1; | |
2113 | } | |
2114 | ||
2115 | osr_debug("SR (%s): Successfully connected to the Label Manager", | |
2116 | __func__); | |
2117 | ||
2118 | return 0; | |
2119 | } | |
2120 | ||
d62a17ae | 2121 | static void ospf_zebra_connected(struct zclient *zclient) |
7076bb2f | 2122 | { |
d62a17ae | 2123 | /* Send the client registration */ |
0945d5ed | 2124 | bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER, VRF_DEFAULT); |
2376c3f2 | 2125 | |
d62a17ae | 2126 | zclient_send_reg_requests(zclient, VRF_DEFAULT); |
7076bb2f FL |
2127 | } |
2128 | ||
132a782e | 2129 | /* |
2130 | * opaque messages between processes | |
2131 | */ | |
2132 | static int ospf_opaque_msg_handler(ZAPI_CALLBACK_ARGS) | |
2133 | { | |
2134 | struct stream *s; | |
2135 | struct zapi_opaque_msg info; | |
2136 | struct ldp_igp_sync_if_state state; | |
2137 | struct ldp_igp_sync_announce announce; | |
f173deb3 | 2138 | struct zapi_opaque_reg_info dst; |
132a782e | 2139 | int ret = 0; |
2140 | ||
2141 | s = zclient->ibuf; | |
2142 | ||
2143 | if (zclient_opaque_decode(s, &info) != 0) | |
2144 | return -1; | |
2145 | ||
2146 | switch (info.type) { | |
f173deb3 OD |
2147 | case LINK_STATE_SYNC: |
2148 | STREAM_GETC(s, dst.proto); | |
2149 | STREAM_GETW(s, dst.instance); | |
2150 | STREAM_GETL(s, dst.session_id); | |
2151 | dst.type = LINK_STATE_SYNC; | |
2152 | ret = ospf_te_sync_ted(dst); | |
2153 | break; | |
132a782e | 2154 | case LDP_IGP_SYNC_IF_STATE_UPDATE: |
2155 | STREAM_GET(&state, s, sizeof(state)); | |
2156 | ret = ospf_ldp_sync_state_update(state); | |
2157 | break; | |
2158 | case LDP_IGP_SYNC_ANNOUNCE_UPDATE: | |
2159 | STREAM_GET(&announce, s, sizeof(announce)); | |
2160 | ret = ospf_ldp_sync_announce_update(announce); | |
2161 | break; | |
132a782e | 2162 | default: |
2163 | break; | |
2164 | } | |
2165 | ||
2166 | stream_failure: | |
2167 | ||
2168 | return ret; | |
2169 | } | |
2170 | ||
cb135cc9 KS |
2171 | static int ospf_zebra_client_close_notify(ZAPI_CALLBACK_ARGS) |
2172 | { | |
2173 | int ret = 0; | |
2174 | ||
2175 | struct zapi_client_close_info info; | |
2176 | ||
2177 | if (zapi_client_close_notify_decode(zclient->ibuf, &info) < 0) | |
2178 | return -1; | |
2179 | ||
2180 | ospf_ldp_sync_handle_client_close(&info); | |
2181 | ||
2182 | return ret; | |
2183 | } | |
2184 | ||
a243d1db DL |
2185 | static zclient_handler *const ospf_handlers[] = { |
2186 | [ZEBRA_ROUTER_ID_UPDATE] = ospf_router_id_update_zebra, | |
2187 | [ZEBRA_INTERFACE_ADDRESS_ADD] = ospf_interface_address_add, | |
2188 | [ZEBRA_INTERFACE_ADDRESS_DELETE] = ospf_interface_address_delete, | |
2189 | [ZEBRA_INTERFACE_LINK_PARAMS] = ospf_interface_link_params, | |
2190 | [ZEBRA_INTERFACE_VRF_UPDATE] = ospf_interface_vrf_update, | |
2191 | ||
2192 | [ZEBRA_REDISTRIBUTE_ROUTE_ADD] = ospf_zebra_read_route, | |
2193 | [ZEBRA_REDISTRIBUTE_ROUTE_DEL] = ospf_zebra_read_route, | |
017714e3 | 2194 | [ZEBRA_NEXTHOP_UPDATE] = ospf_zebra_import_check_update, |
a243d1db DL |
2195 | |
2196 | [ZEBRA_OPAQUE_MESSAGE] = ospf_opaque_msg_handler, | |
2197 | ||
2198 | [ZEBRA_CLIENT_CLOSE_NOTIFY] = ospf_zebra_client_close_notify, | |
2199 | }; | |
2200 | ||
cd9d0537 | 2201 | void ospf_zebra_init(struct event_loop *master, unsigned short instance) |
718e3744 | 2202 | { |
d62a17ae | 2203 | /* Allocate zebra structure. */ |
a243d1db DL |
2204 | zclient = zclient_new(master, &zclient_options_default, ospf_handlers, |
2205 | array_size(ospf_handlers)); | |
342213ea | 2206 | zclient_init(zclient, ZEBRA_ROUTE_OSPF, instance, &ospfd_privs); |
d62a17ae | 2207 | zclient->zebra_connected = ospf_zebra_connected; |
d62a17ae | 2208 | |
d81b8e0e OD |
2209 | /* Initialize special zclient for synchronous message exchanges. */ |
2210 | struct zclient_options options = zclient_options_default; | |
2211 | options.synchronous = true; | |
a243d1db | 2212 | zclient_sync = zclient_new(master, &options, NULL, 0); |
d81b8e0e OD |
2213 | zclient_sync->sock = -1; |
2214 | zclient_sync->redist_default = ZEBRA_ROUTE_OSPF; | |
2215 | zclient_sync->instance = instance; | |
2216 | /* | |
2217 | * session_id must be different from default value (0) to distinguish | |
2218 | * the asynchronous socket from the synchronous one | |
2219 | */ | |
2220 | zclient_sync->session_id = 1; | |
2221 | zclient_sync->privs = &ospfd_privs; | |
2222 | ||
d62a17ae | 2223 | access_list_add_hook(ospf_filter_update); |
2224 | access_list_delete_hook(ospf_filter_update); | |
2225 | prefix_list_add_hook(ospf_prefix_list_update); | |
2226 | prefix_list_delete_hook(ospf_prefix_list_update); | |
718e3744 | 2227 | } |
aa530b62 JU |
2228 | |
2229 | void ospf_zebra_send_arp(const struct interface *ifp, const struct prefix *p) | |
2230 | { | |
2231 | zclient_send_neigh_discovery_req(zclient, ifp, p); | |
2232 | } |