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718e3744 | 1 | /* |
508e53e2 | 2 | * Copyright (C) 2003 Yasuhiro Ohara |
718e3744 | 3 | * |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
896014f4 DL |
16 | * You should have received a copy of the GNU General Public License along |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
718e3744 | 19 | */ |
20 | ||
21 | #include <zebra.h> | |
22 | ||
23 | #include "log.h" | |
24 | #include "memory.h" | |
25 | #include "prefix.h" | |
26 | #include "command.h" | |
27 | #include "vty.h" | |
28 | #include "routemap.h" | |
29 | #include "table.h" | |
30 | #include "plist.h" | |
31 | #include "thread.h" | |
508e53e2 | 32 | #include "linklist.h" |
718e3744 | 33 | |
508e53e2 | 34 | #include "ospf6_proto.h" |
35 | #include "ospf6_lsa.h" | |
36 | #include "ospf6_lsdb.h" | |
37 | #include "ospf6_route.h" | |
718e3744 | 38 | #include "ospf6_zebra.h" |
6452df09 | 39 | #include "ospf6_message.h" |
40 | ||
718e3744 | 41 | #include "ospf6_top.h" |
508e53e2 | 42 | #include "ospf6_area.h" |
6452df09 | 43 | #include "ospf6_interface.h" |
44 | #include "ospf6_neighbor.h" | |
508e53e2 | 45 | #include "ospf6_asbr.h" |
46 | #include "ospf6_intra.h" | |
6452df09 | 47 | #include "ospf6_flood.h" |
049207c3 | 48 | #include "ospf6d.h" |
718e3744 | 49 | |
508e53e2 | 50 | unsigned char conf_debug_ospf6_asbr = 0; |
718e3744 | 51 | |
f52d13cb | 52 | #define ZROUTE_NAME(x) zebra_route_string(x) |
508e53e2 | 53 | |
54 | /* AS External LSA origination */ | |
d62a17ae | 55 | static void ospf6_as_external_lsa_originate(struct ospf6_route *route) |
718e3744 | 56 | { |
d62a17ae | 57 | char buffer[OSPF6_MAX_LSASIZE]; |
58 | struct ospf6_lsa_header *lsa_header; | |
59 | struct ospf6_lsa *lsa; | |
60 | struct ospf6_external_info *info = route->route_option; | |
61 | ||
62 | struct ospf6_as_external_lsa *as_external_lsa; | |
63 | char buf[PREFIX2STR_BUFFER]; | |
64 | caddr_t p; | |
65 | ||
66 | if (IS_OSPF6_DEBUG_ASBR || IS_OSPF6_DEBUG_ORIGINATE(AS_EXTERNAL)) { | |
67 | prefix2str(&route->prefix, buf, sizeof(buf)); | |
68 | zlog_debug("Originate AS-External-LSA for %s", buf); | |
69 | } | |
70 | ||
71 | /* prepare buffer */ | |
72 | memset(buffer, 0, sizeof(buffer)); | |
73 | lsa_header = (struct ospf6_lsa_header *)buffer; | |
74 | as_external_lsa = (struct ospf6_as_external_lsa | |
75 | *)((caddr_t)lsa_header | |
76 | + sizeof(struct ospf6_lsa_header)); | |
77 | p = (caddr_t)((caddr_t)as_external_lsa | |
78 | + sizeof(struct ospf6_as_external_lsa)); | |
79 | ||
80 | /* Fill AS-External-LSA */ | |
81 | /* Metric type */ | |
82 | if (route->path.metric_type == 2) | |
83 | SET_FLAG(as_external_lsa->bits_metric, OSPF6_ASBR_BIT_E); | |
84 | else | |
85 | UNSET_FLAG(as_external_lsa->bits_metric, OSPF6_ASBR_BIT_E); | |
86 | ||
87 | /* forwarding address */ | |
88 | if (!IN6_IS_ADDR_UNSPECIFIED(&info->forwarding)) | |
89 | SET_FLAG(as_external_lsa->bits_metric, OSPF6_ASBR_BIT_F); | |
90 | else | |
91 | UNSET_FLAG(as_external_lsa->bits_metric, OSPF6_ASBR_BIT_F); | |
92 | ||
93 | /* external route tag */ | |
94 | if (info->tag) | |
95 | SET_FLAG(as_external_lsa->bits_metric, OSPF6_ASBR_BIT_T); | |
96 | else | |
97 | UNSET_FLAG(as_external_lsa->bits_metric, OSPF6_ASBR_BIT_T); | |
98 | ||
99 | /* Set metric */ | |
100 | OSPF6_ASBR_METRIC_SET(as_external_lsa, route->path.cost); | |
101 | ||
102 | /* prefixlen */ | |
103 | as_external_lsa->prefix.prefix_length = route->prefix.prefixlen; | |
104 | ||
105 | /* PrefixOptions */ | |
106 | as_external_lsa->prefix.prefix_options = route->path.prefix_options; | |
107 | ||
108 | /* don't use refer LS-type */ | |
109 | as_external_lsa->prefix.prefix_refer_lstype = htons(0); | |
110 | ||
111 | /* set Prefix */ | |
112 | memcpy(p, &route->prefix.u.prefix6, | |
113 | OSPF6_PREFIX_SPACE(route->prefix.prefixlen)); | |
114 | ospf6_prefix_apply_mask(&as_external_lsa->prefix); | |
115 | p += OSPF6_PREFIX_SPACE(route->prefix.prefixlen); | |
116 | ||
117 | /* Forwarding address */ | |
118 | if (CHECK_FLAG(as_external_lsa->bits_metric, OSPF6_ASBR_BIT_F)) { | |
119 | memcpy(p, &info->forwarding, sizeof(struct in6_addr)); | |
120 | p += sizeof(struct in6_addr); | |
121 | } | |
122 | ||
123 | /* External Route Tag */ | |
124 | if (CHECK_FLAG(as_external_lsa->bits_metric, OSPF6_ASBR_BIT_T)) { | |
125 | route_tag_t network_order = htonl(info->tag); | |
126 | ||
127 | memcpy(p, &network_order, sizeof(network_order)); | |
128 | p += sizeof(network_order); | |
129 | } | |
130 | ||
131 | /* Fill LSA Header */ | |
132 | lsa_header->age = 0; | |
133 | lsa_header->type = htons(OSPF6_LSTYPE_AS_EXTERNAL); | |
134 | lsa_header->id = route->path.origin.id; | |
135 | lsa_header->adv_router = ospf6->router_id; | |
136 | lsa_header->seqnum = | |
137 | ospf6_new_ls_seqnum(lsa_header->type, lsa_header->id, | |
138 | lsa_header->adv_router, ospf6->lsdb); | |
139 | lsa_header->length = htons((caddr_t)p - (caddr_t)lsa_header); | |
140 | ||
141 | /* LSA checksum */ | |
142 | ospf6_lsa_checksum(lsa_header); | |
143 | ||
144 | /* create LSA */ | |
145 | lsa = ospf6_lsa_create(lsa_header); | |
146 | ||
147 | /* Originate */ | |
148 | ospf6_lsa_originate_process(lsa, ospf6); | |
718e3744 | 149 | } |
150 | ||
76249532 CS |
151 | int ospf6_orig_as_external_lsa(struct thread *thread) |
152 | { | |
153 | struct ospf6_interface *oi; | |
154 | struct ospf6_lsa *lsa; | |
155 | uint32_t type, adv_router; | |
156 | ||
157 | oi = (struct ospf6_interface *)THREAD_ARG(thread); | |
158 | oi->thread_as_extern_lsa = NULL; | |
159 | ||
160 | if (oi->state == OSPF6_INTERFACE_DOWN) | |
161 | return 0; | |
162 | ||
163 | type = htons(OSPF6_LSTYPE_AS_EXTERNAL); | |
164 | adv_router = oi->area->ospf6->router_id; | |
165 | for (ALL_LSDB_TYPED_ADVRTR(ospf6->lsdb, type, adv_router, lsa)) { | |
166 | if (IS_OSPF6_DEBUG_ASBR) | |
996c9314 LB |
167 | zlog_debug( |
168 | "%s: Send update of AS-External LSA %s seq 0x%x", | |
169 | __PRETTY_FUNCTION__, lsa->name, | |
170 | ntohl(lsa->header->seqnum)); | |
76249532 CS |
171 | |
172 | ospf6_flood_interface(NULL, lsa, oi); | |
173 | } | |
174 | ||
175 | return 0; | |
176 | } | |
177 | ||
d62a17ae | 178 | static route_tag_t ospf6_as_external_lsa_get_tag(struct ospf6_lsa *lsa) |
464015fa | 179 | { |
d62a17ae | 180 | struct ospf6_as_external_lsa *external; |
181 | ptrdiff_t tag_offset; | |
182 | route_tag_t network_order; | |
464015fa | 183 | |
d62a17ae | 184 | if (!lsa) |
185 | return 0; | |
464015fa | 186 | |
d62a17ae | 187 | external = (struct ospf6_as_external_lsa *)OSPF6_LSA_HEADER_END( |
188 | lsa->header); | |
464015fa | 189 | |
d62a17ae | 190 | if (!CHECK_FLAG(external->bits_metric, OSPF6_ASBR_BIT_T)) |
191 | return 0; | |
464015fa | 192 | |
d62a17ae | 193 | tag_offset = sizeof(*external) |
194 | + OSPF6_PREFIX_SPACE(external->prefix.prefix_length); | |
195 | if (CHECK_FLAG(external->bits_metric, OSPF6_ASBR_BIT_F)) | |
196 | tag_offset += sizeof(struct in6_addr); | |
464015fa | 197 | |
d62a17ae | 198 | memcpy(&network_order, (caddr_t)external + tag_offset, |
199 | sizeof(network_order)); | |
200 | return ntohl(network_order); | |
464015fa | 201 | } |
6b0655a2 | 202 | |
064d4355 CS |
203 | void ospf6_asbr_update_route_ecmp_path(struct ospf6_route *old, |
204 | struct ospf6_route *route) | |
205 | { | |
206 | struct ospf6_route *old_route; | |
207 | struct ospf6_path *ecmp_path, *o_path = NULL; | |
07b37f93 | 208 | struct listnode *anode, *anext; |
064d4355 CS |
209 | struct listnode *nnode, *rnode, *rnext; |
210 | struct ospf6_nexthop *nh, *rnh; | |
211 | char buf[PREFIX2STR_BUFFER]; | |
212 | bool route_found = false; | |
213 | ||
07b37f93 CS |
214 | /* check for old entry match with new route origin, |
215 | * delete old entry. | |
216 | */ | |
064d4355 | 217 | for (old_route = old; old_route; old_route = old_route->next) { |
07b37f93 CS |
218 | bool route_updated = false; |
219 | ||
996c9314 LB |
220 | if (!ospf6_route_is_same(old_route, route) |
221 | || (old_route->path.type != route->path.type)) | |
07b37f93 CS |
222 | continue; |
223 | ||
224 | /* Current and New route has same origin, | |
225 | * delete old entry. | |
226 | */ | |
227 | for (ALL_LIST_ELEMENTS(old_route->paths, anode, anext, | |
996c9314 | 228 | o_path)) { |
07b37f93 CS |
229 | /* Check old route path and route has same |
230 | * origin. | |
231 | */ | |
996c9314 LB |
232 | if (o_path->area_id != route->path.area_id |
233 | || (memcmp(&(o_path)->origin, &(route)->path.origin, | |
234 | sizeof(struct ospf6_ls_origin)) | |
235 | != 0)) | |
07b37f93 CS |
236 | continue; |
237 | ||
238 | /* Cost is not same then delete current path */ | |
996c9314 LB |
239 | if ((o_path->cost == route->path.cost) |
240 | && (o_path->u.cost_e2 == route->path.u.cost_e2)) | |
07b37f93 | 241 | continue; |
064d4355 CS |
242 | |
243 | if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL)) { | |
244 | prefix2str(&old_route->prefix, buf, | |
245 | sizeof(buf)); | |
996c9314 LB |
246 | zlog_debug( |
247 | "%s: route %s cost old %u new %u is not same, replace route", | |
248 | __PRETTY_FUNCTION__, buf, o_path->cost, | |
249 | route->path.cost); | |
07b37f93 CS |
250 | } |
251 | ||
252 | /* Remove selected current rout path's nh from | |
253 | * effective nh list. | |
254 | */ | |
255 | for (ALL_LIST_ELEMENTS_RO(o_path->nh_list, nnode, nh)) { | |
256 | for (ALL_LIST_ELEMENTS(old_route->nh_list, | |
996c9314 | 257 | rnode, rnext, rnh)) { |
07b37f93 CS |
258 | if (!ospf6_nexthop_is_same(rnh, nh)) |
259 | continue; | |
260 | listnode_delete(old_route->nh_list, | |
996c9314 | 261 | rnh); |
07b37f93 CS |
262 | ospf6_nexthop_delete(rnh); |
263 | route_updated = true; | |
264 | } | |
265 | } | |
266 | ||
267 | listnode_delete(old_route->paths, o_path); | |
268 | ospf6_path_free(o_path); | |
269 | ||
270 | /* Current route's path (adv_router info) is similar | |
271 | * to route being added. | |
272 | * Replace current route's path with paths list head. | |
273 | * Update FIB with effective NHs. | |
274 | */ | |
275 | if (listcount(old_route->paths)) { | |
996c9314 LB |
276 | if (old_route->path.origin.id |
277 | == route->path.origin.id | |
278 | && old_route->path.origin.adv_router | |
279 | == route->path.origin | |
280 | .adv_router) { | |
07b37f93 CS |
281 | struct ospf6_path *h_path; |
282 | ||
283 | h_path = (struct ospf6_path *) | |
996c9314 LB |
284 | listgetdata(listhead( |
285 | old_route->paths)); | |
07b37f93 CS |
286 | old_route->path.origin.type = |
287 | h_path->origin.type; | |
288 | old_route->path.origin.id = | |
289 | h_path->origin.id; | |
290 | old_route->path.origin.adv_router = | |
291 | h_path->origin.adv_router; | |
292 | } | |
293 | ||
294 | if (route_updated) { | |
295 | for (ALL_LIST_ELEMENTS(old_route->paths, | |
996c9314 LB |
296 | anode, anext, |
297 | o_path)) { | |
07b37f93 CS |
298 | ospf6_merge_nexthops( |
299 | old_route->nh_list, | |
300 | o_path->nh_list); | |
301 | } | |
302 | /* Update RIB/FIB with effective | |
303 | * nh_list | |
304 | */ | |
305 | if (ospf6->route_table->hook_add) | |
996c9314 LB |
306 | (*ospf6->route_table->hook_add)( |
307 | old_route); | |
07b37f93 CS |
308 | break; |
309 | } | |
310 | } else { | |
311 | if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL)) { | |
312 | prefix2str(&old_route->prefix, buf, | |
313 | sizeof(buf)); | |
996c9314 LB |
314 | zlog_debug( |
315 | "%s: route %s old cost %u new cost %u, delete old entry.", | |
316 | __PRETTY_FUNCTION__, buf, | |
317 | old_route->path.cost, | |
318 | route->path.cost); | |
07b37f93 CS |
319 | } |
320 | ospf6_route_remove(old_route, | |
321 | ospf6->route_table); | |
322 | break; | |
323 | } | |
324 | } | |
325 | if (route_updated) | |
326 | break; | |
327 | } | |
328 | ||
329 | /* Add new route */ | |
330 | for (old_route = old; old_route; old_route = old_route->next) { | |
331 | ||
332 | /* Current and New Route prefix or route type | |
333 | * is not same skip this current node. | |
334 | */ | |
996c9314 LB |
335 | if (!ospf6_route_is_same(old_route, route) |
336 | || (old_route->path.type != route->path.type)) | |
07b37f93 CS |
337 | continue; |
338 | ||
339 | /* Old Route and New Route have Equal Cost, Merge NHs */ | |
996c9314 LB |
340 | if ((old_route->path.cost == route->path.cost) |
341 | && (old_route->path.u.cost_e2 == route->path.u.cost_e2)) { | |
07b37f93 CS |
342 | |
343 | if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL)) { | |
344 | prefix2str(&old_route->prefix, buf, | |
345 | sizeof(buf)); | |
996c9314 LB |
346 | zlog_debug( |
347 | "%s: old route %s path cost %u e2 %u", | |
348 | __PRETTY_FUNCTION__, buf, | |
349 | old_route->path.cost, | |
350 | old_route->path.u.cost_e2); | |
064d4355 CS |
351 | } |
352 | route_found = true; | |
353 | /* check if this path exists already in | |
354 | * route->paths list, if so, replace nh_list | |
355 | * from asbr_entry. | |
356 | */ | |
357 | for (ALL_LIST_ELEMENTS_RO(old_route->paths, anode, | |
358 | o_path)) { | |
996c9314 LB |
359 | if (o_path->area_id == route->path.area_id |
360 | && (memcmp(&(o_path)->origin, | |
361 | &(route)->path.origin, | |
362 | sizeof(struct ospf6_ls_origin)) | |
363 | == 0)) | |
064d4355 CS |
364 | break; |
365 | } | |
366 | /* If path is not found in old_route paths's list, | |
367 | * add a new path to route paths list and merge | |
368 | * nexthops in route->path->nh_list. | |
369 | * Otherwise replace existing path's nh_list. | |
370 | */ | |
371 | if (o_path == NULL) { | |
372 | ecmp_path = ospf6_path_dup(&route->path); | |
373 | ||
374 | /* Add a nh_list to new ecmp path */ | |
375 | ospf6_copy_nexthops(ecmp_path->nh_list, | |
376 | route->nh_list); | |
377 | /* Merge nexthop to existing route's nh_list */ | |
378 | ospf6_route_merge_nexthops(old_route, route); | |
379 | ||
380 | /* Update RIB/FIB */ | |
381 | if (ospf6->route_table->hook_add) | |
996c9314 LB |
382 | (*ospf6->route_table->hook_add)( |
383 | old_route); | |
064d4355 CS |
384 | |
385 | /* Add the new path to route's path list */ | |
386 | listnode_add_sort(old_route->paths, ecmp_path); | |
387 | ||
388 | if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL)) { | |
389 | prefix2str(&route->prefix, buf, | |
390 | sizeof(buf)); | |
996c9314 LB |
391 | zlog_debug( |
392 | "%s: route %s another path added with nh %u, effective paths %u nh %u", | |
064d4355 CS |
393 | __PRETTY_FUNCTION__, buf, |
394 | listcount(ecmp_path->nh_list), | |
996c9314 LB |
395 | old_route->paths |
396 | ? listcount( | |
397 | old_route | |
398 | ->paths) | |
399 | : 0, | |
07b37f93 | 400 | listcount(old_route->nh_list)); |
064d4355 CS |
401 | } |
402 | } else { | |
403 | for (ALL_LIST_ELEMENTS_RO(o_path->nh_list, | |
404 | nnode, nh)) { | |
405 | for (ALL_LIST_ELEMENTS( | |
996c9314 LB |
406 | old_route->nh_list, rnode, |
407 | rnext, rnh)) { | |
064d4355 CS |
408 | if (!ospf6_nexthop_is_same(rnh, |
409 | nh)) | |
410 | continue; | |
411 | ||
412 | listnode_delete( | |
413 | old_route->nh_list, | |
414 | rnh); | |
415 | ospf6_nexthop_delete(rnh); | |
416 | } | |
417 | } | |
418 | list_delete_all_node(o_path->nh_list); | |
419 | ospf6_copy_nexthops(o_path->nh_list, | |
996c9314 | 420 | route->nh_list); |
064d4355 CS |
421 | |
422 | /* Merge nexthop to existing route's nh_list */ | |
996c9314 | 423 | ospf6_route_merge_nexthops(old_route, route); |
064d4355 CS |
424 | |
425 | if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL)) { | |
996c9314 LB |
426 | prefix2str(&route->prefix, buf, |
427 | sizeof(buf)); | |
428 | zlog_debug( | |
429 | "%s: existing route %s with effective nh count %u", | |
430 | __PRETTY_FUNCTION__, buf, | |
431 | old_route->nh_list | |
432 | ? listcount( | |
433 | old_route | |
434 | ->nh_list) | |
435 | : 0); | |
064d4355 CS |
436 | } |
437 | ||
438 | /* Update RIB/FIB */ | |
439 | if (ospf6->route_table->hook_add) | |
996c9314 LB |
440 | (*ospf6->route_table->hook_add)( |
441 | old_route); | |
064d4355 CS |
442 | } |
443 | /* Delete the new route its info added to existing | |
444 | * route. | |
445 | */ | |
446 | ospf6_route_delete(route); | |
07b37f93 | 447 | |
064d4355 CS |
448 | break; |
449 | } | |
450 | } | |
451 | ||
452 | if (!route_found) { | |
453 | /* Add new route to existing node in ospf6 route table. */ | |
454 | ospf6_route_add(route, ospf6->route_table); | |
455 | } | |
456 | } | |
457 | ||
d62a17ae | 458 | void ospf6_asbr_lsa_add(struct ospf6_lsa *lsa) |
718e3744 | 459 | { |
d62a17ae | 460 | struct ospf6_as_external_lsa *external; |
461 | struct prefix asbr_id; | |
064d4355 CS |
462 | struct ospf6_route *asbr_entry, *route, *old; |
463 | struct ospf6_path *path; | |
d62a17ae | 464 | char buf[PREFIX2STR_BUFFER]; |
465 | ||
466 | external = (struct ospf6_as_external_lsa *)OSPF6_LSA_HEADER_END( | |
467 | lsa->header); | |
468 | ||
469 | if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL)) | |
470 | zlog_debug("Calculate AS-External route for %s", lsa->name); | |
471 | ||
472 | if (lsa->header->adv_router == ospf6->router_id) { | |
473 | if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL)) | |
474 | zlog_debug("Ignore self-originated AS-External-LSA"); | |
475 | return; | |
476 | } | |
477 | ||
478 | if (OSPF6_ASBR_METRIC(external) == OSPF_LS_INFINITY) { | |
479 | if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL)) | |
480 | zlog_debug("Ignore LSA with LSInfinity Metric"); | |
481 | return; | |
482 | } | |
483 | ||
484 | if (CHECK_FLAG(external->prefix.prefix_options, | |
485 | OSPF6_PREFIX_OPTION_NU)) { | |
486 | if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL)) | |
487 | zlog_debug("Ignore LSA with NU bit set Metric"); | |
488 | return; | |
489 | } | |
490 | ||
491 | ospf6_linkstate_prefix(lsa->header->adv_router, htonl(0), &asbr_id); | |
492 | asbr_entry = ospf6_route_lookup(&asbr_id, ospf6->brouter_table); | |
493 | if (asbr_entry == NULL | |
494 | || !CHECK_FLAG(asbr_entry->path.router_bits, OSPF6_ROUTER_BIT_E)) { | |
495 | if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL)) { | |
496 | prefix2str(&asbr_id, buf, sizeof(buf)); | |
497 | zlog_debug("ASBR entry not found: %s", buf); | |
498 | } | |
499 | return; | |
500 | } | |
501 | ||
502 | route = ospf6_route_create(); | |
503 | route->type = OSPF6_DEST_TYPE_NETWORK; | |
504 | route->prefix.family = AF_INET6; | |
505 | route->prefix.prefixlen = external->prefix.prefix_length; | |
506 | ospf6_prefix_in6_addr(&route->prefix.u.prefix6, &external->prefix); | |
507 | ||
508 | route->path.area_id = asbr_entry->path.area_id; | |
509 | route->path.origin.type = lsa->header->type; | |
510 | route->path.origin.id = lsa->header->id; | |
511 | route->path.origin.adv_router = lsa->header->adv_router; | |
512 | ||
513 | route->path.prefix_options = external->prefix.prefix_options; | |
514 | if (CHECK_FLAG(external->bits_metric, OSPF6_ASBR_BIT_E)) { | |
515 | route->path.type = OSPF6_PATH_TYPE_EXTERNAL2; | |
516 | route->path.metric_type = 2; | |
517 | route->path.cost = asbr_entry->path.cost; | |
518 | route->path.u.cost_e2 = OSPF6_ASBR_METRIC(external); | |
519 | } else { | |
520 | route->path.type = OSPF6_PATH_TYPE_EXTERNAL1; | |
521 | route->path.metric_type = 1; | |
522 | route->path.cost = | |
523 | asbr_entry->path.cost + OSPF6_ASBR_METRIC(external); | |
524 | route->path.u.cost_e2 = 0; | |
525 | } | |
526 | ||
527 | route->path.tag = ospf6_as_external_lsa_get_tag(lsa); | |
528 | ||
529 | ospf6_route_copy_nexthops(route, asbr_entry); | |
530 | ||
064d4355 CS |
531 | path = ospf6_path_dup(&route->path); |
532 | ospf6_copy_nexthops(path->nh_list, asbr_entry->nh_list); | |
533 | listnode_add_sort(route->paths, path); | |
534 | ||
535 | ||
d62a17ae | 536 | if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL)) { |
537 | prefix2str(&route->prefix, buf, sizeof(buf)); | |
064d4355 CS |
538 | zlog_debug("%s: AS-External %u route add %s cost %u(%u) nh %u", |
539 | __PRETTY_FUNCTION__, | |
996c9314 LB |
540 | (route->path.type == OSPF6_PATH_TYPE_EXTERNAL1) ? 1 |
541 | : 2, | |
542 | buf, route->path.cost, route->path.u.cost_e2, | |
064d4355 CS |
543 | listcount(route->nh_list)); |
544 | } | |
545 | ||
546 | old = ospf6_route_lookup(&route->prefix, ospf6->route_table); | |
547 | if (!old) { | |
548 | /* Add the new route to ospf6 instance route table. */ | |
549 | ospf6_route_add(route, ospf6->route_table); | |
550 | } else { | |
551 | /* RFC 2328 16.4 (6) | |
552 | * ECMP: Keep new equal preference path in current | |
553 | * route's path list, update zebra with new effective | |
554 | * list along with addition of ECMP path. | |
555 | */ | |
556 | ospf6_asbr_update_route_ecmp_path(old, route); | |
d62a17ae | 557 | } |
718e3744 | 558 | } |
559 | ||
07b37f93 CS |
560 | void ospf6_asbr_lsa_remove(struct ospf6_lsa *lsa, |
561 | struct ospf6_route *asbr_entry) | |
718e3744 | 562 | { |
d62a17ae | 563 | struct ospf6_as_external_lsa *external; |
564 | struct prefix prefix; | |
07b37f93 | 565 | struct ospf6_route *route, *nroute, *route_to_del; |
d62a17ae | 566 | char buf[PREFIX2STR_BUFFER]; |
567 | ||
568 | external = (struct ospf6_as_external_lsa *)OSPF6_LSA_HEADER_END( | |
569 | lsa->header); | |
570 | ||
571 | if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL)) | |
572 | zlog_debug("Withdraw AS-External route for %s", lsa->name); | |
573 | ||
574 | if (lsa->header->adv_router == ospf6->router_id) { | |
575 | if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL)) | |
576 | zlog_debug("Ignore self-originated AS-External-LSA"); | |
577 | return; | |
578 | } | |
579 | ||
07b37f93 CS |
580 | route_to_del = ospf6_route_create(); |
581 | route_to_del->type = OSPF6_DEST_TYPE_NETWORK; | |
582 | route_to_del->prefix.family = AF_INET6; | |
583 | route_to_del->prefix.prefixlen = external->prefix.prefix_length; | |
584 | ospf6_prefix_in6_addr(&route_to_del->prefix.u.prefix6, | |
585 | &external->prefix); | |
586 | ||
587 | route_to_del->path.origin.type = lsa->header->type; | |
588 | route_to_del->path.origin.id = lsa->header->id; | |
589 | route_to_del->path.origin.adv_router = lsa->header->adv_router; | |
590 | ||
591 | if (asbr_entry) { | |
592 | route_to_del->path.area_id = asbr_entry->path.area_id; | |
593 | if (CHECK_FLAG(external->bits_metric, OSPF6_ASBR_BIT_E)) { | |
594 | route_to_del->path.type = OSPF6_PATH_TYPE_EXTERNAL2; | |
595 | route_to_del->path.metric_type = 2; | |
596 | route_to_del->path.cost = asbr_entry->path.cost; | |
597 | route_to_del->path.u.cost_e2 = | |
598 | OSPF6_ASBR_METRIC(external); | |
599 | } else { | |
600 | route_to_del->path.type = OSPF6_PATH_TYPE_EXTERNAL1; | |
601 | route_to_del->path.metric_type = 1; | |
996c9314 LB |
602 | route_to_del->path.cost = asbr_entry->path.cost |
603 | + OSPF6_ASBR_METRIC(external); | |
07b37f93 CS |
604 | route_to_del->path.u.cost_e2 = 0; |
605 | } | |
606 | } | |
607 | ||
d62a17ae | 608 | memset(&prefix, 0, sizeof(struct prefix)); |
609 | prefix.family = AF_INET6; | |
610 | prefix.prefixlen = external->prefix.prefix_length; | |
611 | ospf6_prefix_in6_addr(&prefix.u.prefix6, &external->prefix); | |
612 | ||
613 | route = ospf6_route_lookup(&prefix, ospf6->route_table); | |
614 | if (route == NULL) { | |
615 | if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL)) { | |
616 | prefix2str(&prefix, buf, sizeof(buf)); | |
617 | zlog_debug("AS-External route %s not found", buf); | |
618 | } | |
267bf505 DS |
619 | |
620 | ospf6_route_delete(route_to_del); | |
d62a17ae | 621 | return; |
622 | } | |
623 | ||
07b37f93 CS |
624 | if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL)) { |
625 | prefix2str(&prefix, buf, sizeof(buf)); | |
996c9314 LB |
626 | zlog_debug( |
627 | "%s: Current route %s cost %u e2 %u, route to del cost %u e2 %u", | |
628 | __PRETTY_FUNCTION__, buf, route->path.cost, | |
629 | route->path.u.cost_e2, route_to_del->path.cost, | |
630 | route_to_del->path.u.cost_e2); | |
07b37f93 CS |
631 | } |
632 | ||
996c9314 LB |
633 | for (ospf6_route_lock(route); |
634 | route && ospf6_route_is_prefix(&prefix, route); route = nroute) { | |
d62a17ae | 635 | nroute = ospf6_route_next(route); |
07b37f93 | 636 | |
d62a17ae | 637 | if (route->type != OSPF6_DEST_TYPE_NETWORK) |
638 | continue; | |
064d4355 | 639 | |
07b37f93 CS |
640 | /* Route has multiple ECMP paths, remove matching |
641 | * path. Update current route's effective nh list | |
642 | * after removal of one of the path. | |
064d4355 CS |
643 | */ |
644 | if (listcount(route->paths) > 1) { | |
645 | struct listnode *anode, *anext; | |
646 | struct listnode *nnode, *rnode, *rnext; | |
647 | struct ospf6_nexthop *nh, *rnh; | |
648 | struct ospf6_path *o_path; | |
649 | bool nh_updated = false; | |
650 | ||
651 | /* Iterate all paths of route to find maching with LSA | |
652 | * remove from route path list. If route->path is same, | |
653 | * replace from paths list. | |
654 | */ | |
655 | for (ALL_LIST_ELEMENTS(route->paths, anode, anext, | |
996c9314 | 656 | o_path)) { |
07b37f93 | 657 | if ((o_path->origin.type != lsa->header->type) |
996c9314 LB |
658 | || (o_path->origin.adv_router |
659 | != lsa->header->adv_router) | |
660 | || (o_path->origin.id != lsa->header->id)) | |
064d4355 | 661 | continue; |
07b37f93 CS |
662 | |
663 | /* Compare LSA cost with current | |
664 | * route info. | |
665 | */ | |
996c9314 LB |
666 | if (!asbr_entry |
667 | && (o_path->cost != route_to_del->path.cost | |
668 | || o_path->u.cost_e2 | |
669 | != route_to_del->path.u | |
670 | .cost_e2)) { | |
07b37f93 | 671 | if (IS_OSPF6_DEBUG_EXAMIN( |
996c9314 | 672 | AS_EXTERNAL)) { |
07b37f93 CS |
673 | prefix2str(&prefix, buf, |
674 | sizeof(buf)); | |
675 | zlog_debug( | |
996c9314 LB |
676 | "%s: route %s to delete is not same, cost %u del cost %u. skip", |
677 | __PRETTY_FUNCTION__, | |
678 | buf, route->path.cost, | |
679 | route_to_del->path | |
680 | .cost); | |
07b37f93 | 681 | } |
064d4355 | 682 | continue; |
07b37f93 | 683 | } |
064d4355 | 684 | |
996c9314 | 685 | if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL)) { |
064d4355 CS |
686 | prefix2str(&prefix, buf, sizeof(buf)); |
687 | zlog_debug( | |
07b37f93 | 688 | "%s: route %s path found with nh %u to remove.", |
064d4355 CS |
689 | __PRETTY_FUNCTION__, buf, |
690 | listcount(o_path->nh_list)); | |
691 | } | |
692 | ||
693 | /* Remove found path's nh_list from | |
694 | * the route's nh_list. | |
695 | */ | |
696 | for (ALL_LIST_ELEMENTS_RO(o_path->nh_list, | |
697 | nnode, nh)) { | |
698 | for (ALL_LIST_ELEMENTS(route->nh_list, | |
996c9314 LB |
699 | rnode, rnext, |
700 | rnh)) { | |
064d4355 | 701 | if (!ospf6_nexthop_is_same(rnh, |
996c9314 | 702 | nh)) |
064d4355 CS |
703 | continue; |
704 | listnode_delete(route->nh_list, | |
705 | rnh); | |
706 | ospf6_nexthop_delete(rnh); | |
707 | } | |
708 | } | |
709 | /* Delete the path from route's path list */ | |
710 | listnode_delete(route->paths, o_path); | |
711 | ospf6_path_free(o_path); | |
712 | nh_updated = true; | |
713 | } | |
714 | ||
715 | if (nh_updated) { | |
716 | /* Iterate all paths and merge nexthop, | |
717 | * unlesss any of the nexthop similar to | |
718 | * ones deleted as part of path deletion. | |
719 | */ | |
720 | ||
721 | for (ALL_LIST_ELEMENTS(route->paths, anode, | |
722 | anext, o_path)) { | |
723 | ospf6_merge_nexthops(route->nh_list, | |
724 | o_path->nh_list); | |
725 | } | |
726 | ||
727 | if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL)) { | |
728 | prefix2str(&route->prefix, buf, | |
729 | sizeof(buf)); | |
996c9314 LB |
730 | zlog_debug( |
731 | "%s: AS-External %u route %s update paths %u nh %u", | |
732 | __PRETTY_FUNCTION__, | |
733 | (route->path.type | |
734 | == OSPF6_PATH_TYPE_EXTERNAL1) | |
735 | ? 1 | |
736 | : 2, | |
737 | buf, listcount(route->paths), | |
738 | listcount(route->nh_list)); | |
064d4355 CS |
739 | } |
740 | ||
07b37f93 | 741 | /* Update RIB/FIB with effective nh_list */ |
064d4355 CS |
742 | if (ospf6->route_table->hook_add) |
743 | (*ospf6->route_table->hook_add)(route); | |
744 | ||
07b37f93 CS |
745 | /* route's primary path is similar to LSA, |
746 | * replace route's primary path with | |
747 | * route's paths list head. | |
064d4355 | 748 | */ |
996c9314 LB |
749 | if (route->path.origin.id == lsa->header->id |
750 | && route->path.origin.adv_router | |
751 | == lsa->header->adv_router) { | |
064d4355 CS |
752 | struct ospf6_path *h_path; |
753 | ||
754 | h_path = (struct ospf6_path *) | |
996c9314 LB |
755 | listgetdata( |
756 | listhead(route->paths)); | |
064d4355 CS |
757 | route->path.origin.type = |
758 | h_path->origin.type; | |
759 | route->path.origin.id = | |
760 | h_path->origin.id; | |
761 | route->path.origin.adv_router = | |
762 | h_path->origin.adv_router; | |
763 | } | |
764 | } | |
d62a17ae | 765 | continue; |
766 | ||
064d4355 | 767 | } else { |
07b37f93 CS |
768 | /* Compare LSA origin and cost with current route info. |
769 | * if any check fails skip del this route node. | |
770 | */ | |
996c9314 LB |
771 | if (asbr_entry |
772 | && (!ospf6_route_is_same_origin(route, route_to_del) | |
773 | || (route->path.type != route_to_del->path.type) | |
774 | || (route->path.cost != route_to_del->path.cost) | |
775 | || (route->path.u.cost_e2 | |
776 | != route_to_del->path.u.cost_e2))) { | |
07b37f93 CS |
777 | if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL)) { |
778 | prefix2str(&prefix, buf, sizeof(buf)); | |
996c9314 LB |
779 | zlog_debug( |
780 | "%s: route %s to delete is not same, cost %u del cost %u. skip", | |
781 | __PRETTY_FUNCTION__, buf, | |
782 | route->path.cost, | |
783 | route_to_del->path.cost); | |
07b37f93 | 784 | } |
064d4355 | 785 | continue; |
07b37f93 CS |
786 | } |
787 | ||
996c9314 LB |
788 | if ((route->path.origin.type != lsa->header->type) |
789 | || (route->path.origin.adv_router | |
790 | != lsa->header->adv_router) | |
791 | || (route->path.origin.id != lsa->header->id)) | |
064d4355 CS |
792 | continue; |
793 | } | |
d62a17ae | 794 | if (IS_OSPF6_DEBUG_EXAMIN(AS_EXTERNAL)) { |
795 | prefix2str(&route->prefix, buf, sizeof(buf)); | |
996c9314 LB |
796 | zlog_debug( |
797 | "%s: AS-External %u route remove %s cost %u(%u) nh %u", | |
798 | __PRETTY_FUNCTION__, | |
799 | route->path.type == OSPF6_PATH_TYPE_EXTERNAL1 | |
800 | ? 1 | |
801 | : 2, | |
802 | buf, route->path.cost, route->path.u.cost_e2, | |
803 | listcount(route->nh_list)); | |
d62a17ae | 804 | } |
805 | ospf6_route_remove(route, ospf6->route_table); | |
806 | } | |
807 | if (route != NULL) | |
808 | ospf6_route_unlock(route); | |
07b37f93 CS |
809 | |
810 | ospf6_route_delete(route_to_del); | |
718e3744 | 811 | } |
812 | ||
d62a17ae | 813 | void ospf6_asbr_lsentry_add(struct ospf6_route *asbr_entry) |
508e53e2 | 814 | { |
d62a17ae | 815 | struct ospf6_lsa *lsa; |
d7c0a89a QY |
816 | uint16_t type; |
817 | uint32_t router; | |
d62a17ae | 818 | |
819 | if (!CHECK_FLAG(asbr_entry->flag, OSPF6_ROUTE_BEST)) { | |
820 | char buf[16]; | |
821 | inet_ntop(AF_INET, &ADV_ROUTER_IN_PREFIX(&asbr_entry->prefix), | |
822 | buf, sizeof(buf)); | |
823 | zlog_info("ignore non-best path: lsentry %s add", buf); | |
824 | return; | |
825 | } | |
826 | ||
827 | type = htons(OSPF6_LSTYPE_AS_EXTERNAL); | |
828 | router = ospf6_linkstate_prefix_adv_router(&asbr_entry->prefix); | |
829 | for (ALL_LSDB_TYPED_ADVRTR(ospf6->lsdb, type, router, lsa)) { | |
830 | if (!OSPF6_LSA_IS_MAXAGE(lsa)) | |
831 | ospf6_asbr_lsa_add(lsa); | |
832 | } | |
508e53e2 | 833 | } |
834 | ||
d62a17ae | 835 | void ospf6_asbr_lsentry_remove(struct ospf6_route *asbr_entry) |
718e3744 | 836 | { |
d62a17ae | 837 | struct ospf6_lsa *lsa; |
d7c0a89a QY |
838 | uint16_t type; |
839 | uint32_t router; | |
d62a17ae | 840 | |
841 | type = htons(OSPF6_LSTYPE_AS_EXTERNAL); | |
842 | router = ospf6_linkstate_prefix_adv_router(&asbr_entry->prefix); | |
843 | for (ALL_LSDB_TYPED_ADVRTR(ospf6->lsdb, type, router, lsa)) | |
07b37f93 | 844 | ospf6_asbr_lsa_remove(lsa, asbr_entry); |
508e53e2 | 845 | } |
718e3744 | 846 | |
508e53e2 | 847 | |
508e53e2 | 848 | /* redistribute function */ |
849 | ||
d62a17ae | 850 | static void ospf6_asbr_routemap_set(int type, const char *mapname) |
508e53e2 | 851 | { |
d62a17ae | 852 | if (ospf6->rmap[type].name) |
853 | free(ospf6->rmap[type].name); | |
854 | ospf6->rmap[type].name = strdup(mapname); | |
855 | ospf6->rmap[type].map = route_map_lookup_by_name(mapname); | |
718e3744 | 856 | } |
857 | ||
d62a17ae | 858 | static void ospf6_asbr_routemap_unset(int type) |
718e3744 | 859 | { |
d62a17ae | 860 | if (ospf6->rmap[type].name) |
861 | free(ospf6->rmap[type].name); | |
862 | ospf6->rmap[type].name = NULL; | |
863 | ospf6->rmap[type].map = NULL; | |
508e53e2 | 864 | } |
865 | ||
856ae1eb CS |
866 | static int ospf6_asbr_routemap_update_timer(struct thread *thread) |
867 | { | |
868 | void **arg; | |
869 | int arg_type; | |
870 | ||
871 | arg = THREAD_ARG(thread); | |
872 | arg_type = (int)(intptr_t)arg[1]; | |
873 | ||
874 | ospf6->t_distribute_update = NULL; | |
875 | ||
876 | if (ospf6->rmap[arg_type].name) | |
996c9314 LB |
877 | ospf6->rmap[arg_type].map = |
878 | route_map_lookup_by_name(ospf6->rmap[arg_type].name); | |
856ae1eb CS |
879 | if (ospf6->rmap[arg_type].map) { |
880 | if (IS_OSPF6_DEBUG_ASBR) | |
881 | zlog_debug("%s: route-map %s update, reset redist %s", | |
882 | __PRETTY_FUNCTION__, | |
883 | ospf6->rmap[arg_type].name, | |
884 | ZROUTE_NAME(arg_type)); | |
885 | ||
886 | ospf6_zebra_no_redistribute(arg_type); | |
887 | ospf6_zebra_redistribute(arg_type); | |
888 | } | |
889 | ||
890 | XFREE(MTYPE_OSPF6_DIST_ARGS, arg); | |
891 | return 0; | |
892 | } | |
893 | ||
894 | void ospf6_asbr_distribute_list_update(int type) | |
895 | { | |
896 | void **args = NULL; | |
897 | ||
898 | if (ospf6->t_distribute_update) | |
899 | return; | |
900 | ||
996c9314 | 901 | args = XCALLOC(MTYPE_OSPF6_DIST_ARGS, sizeof(void *) * 2); |
856ae1eb CS |
902 | |
903 | args[0] = ospf6; | |
904 | args[1] = (void *)((ptrdiff_t)type); | |
905 | ||
906 | if (IS_OSPF6_DEBUG_ASBR) | |
907 | zlog_debug("%s: trigger redistribute %s reset thread", | |
908 | __PRETTY_FUNCTION__, ZROUTE_NAME(type)); | |
909 | ||
910 | ospf6->t_distribute_update = NULL; | |
911 | thread_add_timer_msec(master, ospf6_asbr_routemap_update_timer, | |
912 | (void **)args, OSPF_MIN_LS_INTERVAL, | |
913 | &ospf6->t_distribute_update); | |
914 | } | |
915 | ||
d62a17ae | 916 | static void ospf6_asbr_routemap_update(const char *mapname) |
508e53e2 | 917 | { |
d62a17ae | 918 | int type; |
919 | ||
920 | if (ospf6 == NULL) | |
921 | return; | |
922 | ||
923 | for (type = 0; type < ZEBRA_ROUTE_MAX; type++) { | |
c600ce45 | 924 | if (ospf6->rmap[type].name) { |
d62a17ae | 925 | ospf6->rmap[type].map = route_map_lookup_by_name( |
926 | ospf6->rmap[type].name); | |
c600ce45 | 927 | |
996c9314 LB |
928 | if (mapname && ospf6->rmap[type].map |
929 | && (strcmp(ospf6->rmap[type].name, mapname) == 0)) { | |
c600ce45 | 930 | if (IS_OSPF6_DEBUG_ASBR) |
996c9314 LB |
931 | zlog_debug( |
932 | "%s: route-map %s update, reset redist %s", | |
933 | __PRETTY_FUNCTION__, mapname, | |
934 | ZROUTE_NAME(type)); | |
856ae1eb | 935 | ospf6_asbr_distribute_list_update(type); |
c600ce45 CS |
936 | } |
937 | } else | |
d62a17ae | 938 | ospf6->rmap[type].map = NULL; |
939 | } | |
718e3744 | 940 | } |
941 | ||
856ae1eb CS |
942 | static void ospf6_asbr_routemap_event(route_map_event_t event, const char *name) |
943 | { | |
944 | int type; | |
945 | ||
946 | if (ospf6 == NULL) | |
947 | return; | |
948 | for (type = 0; type < ZEBRA_ROUTE_MAX; type++) { | |
996c9314 LB |
949 | if ((ospf6->rmap[type].name) |
950 | && (strcmp(ospf6->rmap[type].name, name) == 0)) { | |
856ae1eb CS |
951 | ospf6_asbr_distribute_list_update(type); |
952 | } | |
953 | } | |
954 | } | |
955 | ||
d62a17ae | 956 | int ospf6_asbr_is_asbr(struct ospf6 *o) |
508e53e2 | 957 | { |
d62a17ae | 958 | return o->external_table->count; |
508e53e2 | 959 | } |
960 | ||
d62a17ae | 961 | static void ospf6_asbr_redistribute_set(int type) |
718e3744 | 962 | { |
d62a17ae | 963 | ospf6_zebra_redistribute(type); |
508e53e2 | 964 | } |
965 | ||
d62a17ae | 966 | static void ospf6_asbr_redistribute_unset(int type) |
508e53e2 | 967 | { |
d62a17ae | 968 | struct ospf6_route *route; |
969 | struct ospf6_external_info *info; | |
718e3744 | 970 | |
d62a17ae | 971 | ospf6_zebra_no_redistribute(type); |
508e53e2 | 972 | |
d62a17ae | 973 | for (route = ospf6_route_head(ospf6->external_table); route; |
974 | route = ospf6_route_next(route)) { | |
975 | info = route->route_option; | |
976 | if (info->type != type) | |
977 | continue; | |
718e3744 | 978 | |
d62a17ae | 979 | ospf6_asbr_redistribute_remove(info->type, 0, &route->prefix); |
980 | } | |
d9628728 | 981 | |
d62a17ae | 982 | ospf6_asbr_routemap_unset(type); |
508e53e2 | 983 | } |
718e3744 | 984 | |
ca1f4309 | 985 | /* When an area is unstubified, flood all the external LSAs in the area */ |
d62a17ae | 986 | void ospf6_asbr_send_externals_to_area(struct ospf6_area *oa) |
ca1f4309 | 987 | { |
d62a17ae | 988 | struct ospf6_lsa *lsa; |
989 | ||
990 | for (ALL_LSDB(oa->ospf6->lsdb, lsa)) { | |
991 | if (ntohs(lsa->header->type) == OSPF6_LSTYPE_AS_EXTERNAL) { | |
992 | zlog_debug("%s: Flooding AS-External LSA %s\n", | |
993 | __func__, lsa->name); | |
994 | ospf6_flood_area(NULL, lsa, oa); | |
995 | } | |
ca1f4309 | 996 | } |
ca1f4309 DS |
997 | } |
998 | ||
d62a17ae | 999 | void ospf6_asbr_redistribute_add(int type, ifindex_t ifindex, |
d7c0a89a QY |
1000 | struct prefix *prefix, |
1001 | unsigned int nexthop_num, | |
d62a17ae | 1002 | struct in6_addr *nexthop, route_tag_t tag) |
508e53e2 | 1003 | { |
d62a17ae | 1004 | int ret; |
1005 | struct ospf6_route troute; | |
1006 | struct ospf6_external_info tinfo; | |
1007 | struct ospf6_route *route, *match; | |
1008 | struct ospf6_external_info *info; | |
1009 | struct prefix prefix_id; | |
1010 | struct route_node *node; | |
1011 | char pbuf[PREFIX2STR_BUFFER], ibuf[16]; | |
1012 | struct listnode *lnode, *lnnode; | |
1013 | struct ospf6_area *oa; | |
1014 | ||
1015 | if (!ospf6_zebra_is_redistribute(type)) | |
1016 | return; | |
1017 | ||
6e38a9ec VJ |
1018 | memset(&troute, 0, sizeof(troute)); |
1019 | memset(&tinfo, 0, sizeof(tinfo)); | |
1020 | ||
d62a17ae | 1021 | if (IS_OSPF6_DEBUG_ASBR) { |
1022 | prefix2str(prefix, pbuf, sizeof(pbuf)); | |
1023 | zlog_debug("Redistribute %s (%s)", pbuf, ZROUTE_NAME(type)); | |
1024 | } | |
1025 | ||
1026 | /* if route-map was specified but not found, do not advertise */ | |
1027 | if (ospf6->rmap[type].name) { | |
1028 | if (ospf6->rmap[type].map == NULL) | |
1029 | ospf6_asbr_routemap_update(NULL); | |
1030 | if (ospf6->rmap[type].map == NULL) { | |
1031 | zlog_warn( | |
1032 | "route-map \"%s\" not found, suppress redistributing", | |
1033 | ospf6->rmap[type].name); | |
1034 | return; | |
1035 | } | |
1036 | } | |
1037 | ||
1038 | /* apply route-map */ | |
1039 | if (ospf6->rmap[type].map) { | |
d62a17ae | 1040 | troute.route_option = &tinfo; |
1041 | tinfo.ifindex = ifindex; | |
1042 | tinfo.tag = tag; | |
1043 | ||
1044 | ret = route_map_apply(ospf6->rmap[type].map, prefix, RMAP_OSPF6, | |
1045 | &troute); | |
1046 | if (ret == RMAP_DENYMATCH) { | |
1047 | if (IS_OSPF6_DEBUG_ASBR) | |
1048 | zlog_debug("Denied by route-map \"%s\"", | |
1049 | ospf6->rmap[type].name); | |
1050 | return; | |
1051 | } | |
1052 | } | |
1053 | ||
1054 | match = ospf6_route_lookup(prefix, ospf6->external_table); | |
1055 | if (match) { | |
1056 | info = match->route_option; | |
d62a17ae | 1057 | /* copy result of route-map */ |
1058 | if (ospf6->rmap[type].map) { | |
1059 | if (troute.path.metric_type) | |
1060 | match->path.metric_type = | |
1061 | troute.path.metric_type; | |
1062 | if (troute.path.cost) | |
1063 | match->path.cost = troute.path.cost; | |
1064 | if (!IN6_IS_ADDR_UNSPECIFIED(&tinfo.forwarding)) | |
1065 | memcpy(&info->forwarding, &tinfo.forwarding, | |
1066 | sizeof(struct in6_addr)); | |
1067 | info->tag = tinfo.tag; | |
1068 | } else { | |
1069 | /* If there is no route-map, simply update the tag */ | |
1070 | info->tag = tag; | |
1071 | } | |
1072 | ||
1073 | info->type = type; | |
1074 | ||
1075 | if (nexthop_num && nexthop) | |
1076 | ospf6_route_add_nexthop(match, ifindex, nexthop); | |
1077 | else | |
1078 | ospf6_route_add_nexthop(match, ifindex, NULL); | |
1079 | ||
1080 | /* create/update binding in external_id_table */ | |
1081 | prefix_id.family = AF_INET; | |
1082 | prefix_id.prefixlen = 32; | |
1083 | prefix_id.u.prefix4.s_addr = htonl(info->id); | |
1084 | node = route_node_get(ospf6->external_id_table, &prefix_id); | |
1085 | node->info = match; | |
1086 | ||
1087 | if (IS_OSPF6_DEBUG_ASBR) { | |
1088 | inet_ntop(AF_INET, &prefix_id.u.prefix4, ibuf, | |
1089 | sizeof(ibuf)); | |
856ae1eb | 1090 | prefix2str(prefix, pbuf, sizeof(pbuf)); |
996c9314 LB |
1091 | zlog_debug( |
1092 | "Advertise as AS-External Id:%s prefix %s metric %u", | |
1093 | ibuf, pbuf, match->path.metric_type); | |
d62a17ae | 1094 | } |
1095 | ||
1096 | match->path.origin.id = htonl(info->id); | |
1097 | ospf6_as_external_lsa_originate(match); | |
1098 | return; | |
1099 | } | |
1100 | ||
1101 | /* create new entry */ | |
1102 | route = ospf6_route_create(); | |
1103 | route->type = OSPF6_DEST_TYPE_NETWORK; | |
1104 | memcpy(&route->prefix, prefix, sizeof(struct prefix)); | |
1105 | ||
1106 | info = (struct ospf6_external_info *)XCALLOC( | |
1107 | MTYPE_OSPF6_EXTERNAL_INFO, sizeof(struct ospf6_external_info)); | |
1108 | route->route_option = info; | |
1109 | info->id = ospf6->external_id++; | |
1110 | ||
1111 | /* copy result of route-map */ | |
1112 | if (ospf6->rmap[type].map) { | |
1113 | if (troute.path.metric_type) | |
1114 | route->path.metric_type = troute.path.metric_type; | |
1115 | if (troute.path.cost) | |
1116 | route->path.cost = troute.path.cost; | |
1117 | if (!IN6_IS_ADDR_UNSPECIFIED(&tinfo.forwarding)) | |
1118 | memcpy(&info->forwarding, &tinfo.forwarding, | |
1119 | sizeof(struct in6_addr)); | |
1120 | info->tag = tinfo.tag; | |
1121 | } else { | |
1122 | /* If there is no route-map, simply set the tag */ | |
1123 | info->tag = tag; | |
1124 | } | |
1125 | ||
1126 | info->type = type; | |
1127 | if (nexthop_num && nexthop) | |
1128 | ospf6_route_add_nexthop(route, ifindex, nexthop); | |
1129 | else | |
1130 | ospf6_route_add_nexthop(route, ifindex, NULL); | |
1131 | ||
1132 | /* create/update binding in external_id_table */ | |
1133 | prefix_id.family = AF_INET; | |
1134 | prefix_id.prefixlen = 32; | |
1135 | prefix_id.u.prefix4.s_addr = htonl(info->id); | |
1136 | node = route_node_get(ospf6->external_id_table, &prefix_id); | |
1137 | node->info = route; | |
1138 | ||
1139 | route = ospf6_route_add(route, ospf6->external_table); | |
1140 | route->route_option = info; | |
1141 | ||
1142 | if (IS_OSPF6_DEBUG_ASBR) { | |
1143 | inet_ntop(AF_INET, &prefix_id.u.prefix4, ibuf, sizeof(ibuf)); | |
856ae1eb CS |
1144 | prefix2str(prefix, pbuf, sizeof(pbuf)); |
1145 | zlog_debug("Advertise as AS-External Id:%s prefix %s metric %u", | |
1146 | ibuf, pbuf, route->path.metric_type); | |
d62a17ae | 1147 | } |
1148 | ||
1149 | route->path.origin.id = htonl(info->id); | |
1150 | ospf6_as_external_lsa_originate(route); | |
1151 | ||
1152 | /* Router-Bit (ASBR Flag) may have to be updated */ | |
1153 | for (ALL_LIST_ELEMENTS(ospf6->area_list, lnode, lnnode, oa)) | |
1154 | OSPF6_ROUTER_LSA_SCHEDULE(oa); | |
718e3744 | 1155 | } |
1156 | ||
d62a17ae | 1157 | void ospf6_asbr_redistribute_remove(int type, ifindex_t ifindex, |
1158 | struct prefix *prefix) | |
718e3744 | 1159 | { |
d62a17ae | 1160 | struct ospf6_route *match; |
1161 | struct ospf6_external_info *info = NULL; | |
1162 | struct route_node *node; | |
1163 | struct ospf6_lsa *lsa; | |
1164 | struct prefix prefix_id; | |
1165 | char pbuf[PREFIX2STR_BUFFER], ibuf[16]; | |
1166 | struct listnode *lnode, *lnnode; | |
1167 | struct ospf6_area *oa; | |
1168 | ||
1169 | match = ospf6_route_lookup(prefix, ospf6->external_table); | |
1170 | if (match == NULL) { | |
1171 | if (IS_OSPF6_DEBUG_ASBR) { | |
1172 | prefix2str(prefix, pbuf, sizeof(pbuf)); | |
1173 | zlog_debug("No such route %s to withdraw", pbuf); | |
1174 | } | |
1175 | return; | |
1176 | } | |
1177 | ||
1178 | info = match->route_option; | |
1179 | assert(info); | |
1180 | ||
1181 | if (info->type != type) { | |
1182 | if (IS_OSPF6_DEBUG_ASBR) { | |
1183 | prefix2str(prefix, pbuf, sizeof(pbuf)); | |
1184 | zlog_debug("Original protocol mismatch: %s", pbuf); | |
1185 | } | |
1186 | return; | |
1187 | } | |
1188 | ||
1189 | if (IS_OSPF6_DEBUG_ASBR) { | |
1190 | prefix2str(prefix, pbuf, sizeof(pbuf)); | |
1191 | inet_ntop(AF_INET, &prefix_id.u.prefix4, ibuf, sizeof(ibuf)); | |
1192 | zlog_debug("Withdraw %s (AS-External Id:%s)", pbuf, ibuf); | |
1193 | } | |
1194 | ||
1195 | lsa = ospf6_lsdb_lookup(htons(OSPF6_LSTYPE_AS_EXTERNAL), | |
1196 | htonl(info->id), ospf6->router_id, ospf6->lsdb); | |
1197 | if (lsa) | |
1198 | ospf6_lsa_purge(lsa); | |
1199 | ||
1200 | /* remove binding in external_id_table */ | |
1201 | prefix_id.family = AF_INET; | |
1202 | prefix_id.prefixlen = 32; | |
1203 | prefix_id.u.prefix4.s_addr = htonl(info->id); | |
1204 | node = route_node_lookup(ospf6->external_id_table, &prefix_id); | |
1205 | assert(node); | |
1206 | node->info = NULL; | |
d107621d CS |
1207 | route_unlock_node(node); /* to free the lookup lock */ |
1208 | route_unlock_node(node); /* to free the original lock */ | |
d62a17ae | 1209 | |
1210 | ospf6_route_remove(match, ospf6->external_table); | |
1211 | XFREE(MTYPE_OSPF6_EXTERNAL_INFO, info); | |
1212 | ||
1213 | /* Router-Bit (ASBR Flag) may have to be updated */ | |
1214 | for (ALL_LIST_ELEMENTS(ospf6->area_list, lnode, lnnode, oa)) | |
1215 | OSPF6_ROUTER_LSA_SCHEDULE(oa); | |
718e3744 | 1216 | } |
1217 | ||
508e53e2 | 1218 | DEFUN (ospf6_redistribute, |
1219 | ospf6_redistribute_cmd, | |
40d1cbfb | 1220 | "redistribute " FRR_REDIST_STR_OSPF6D, |
508e53e2 | 1221 | "Redistribute\n" |
3b14d86e | 1222 | FRR_REDIST_HELP_STR_OSPF6D) |
718e3744 | 1223 | { |
d62a17ae | 1224 | int type; |
e0ca5fde | 1225 | |
d62a17ae | 1226 | char *proto = argv[argc - 1]->text; |
1227 | type = proto_redistnum(AFI_IP6, proto); | |
1228 | if (type < 0) | |
1229 | return CMD_WARNING_CONFIG_FAILED; | |
718e3744 | 1230 | |
d62a17ae | 1231 | ospf6_asbr_redistribute_unset(type); |
1232 | ospf6_asbr_redistribute_set(type); | |
1233 | return CMD_SUCCESS; | |
508e53e2 | 1234 | } |
718e3744 | 1235 | |
508e53e2 | 1236 | DEFUN (ospf6_redistribute_routemap, |
1237 | ospf6_redistribute_routemap_cmd, | |
40d1cbfb | 1238 | "redistribute " FRR_REDIST_STR_OSPF6D " route-map WORD", |
508e53e2 | 1239 | "Redistribute\n" |
ab0181ee | 1240 | FRR_REDIST_HELP_STR_OSPF6D |
508e53e2 | 1241 | "Route map reference\n" |
e52702f2 | 1242 | "Route map name\n") |
508e53e2 | 1243 | { |
d62a17ae | 1244 | int idx_protocol = 1; |
1245 | int idx_word = 3; | |
1246 | int type; | |
1247 | ||
1248 | char *proto = argv[idx_protocol]->text; | |
1249 | type = proto_redistnum(AFI_IP6, proto); | |
1250 | if (type < 0) | |
1251 | return CMD_WARNING_CONFIG_FAILED; | |
1252 | ||
1253 | ospf6_asbr_redistribute_unset(type); | |
1254 | ospf6_asbr_routemap_set(type, argv[idx_word]->arg); | |
1255 | ospf6_asbr_redistribute_set(type); | |
1256 | return CMD_SUCCESS; | |
508e53e2 | 1257 | } |
1258 | ||
1259 | DEFUN (no_ospf6_redistribute, | |
1260 | no_ospf6_redistribute_cmd, | |
40d1cbfb | 1261 | "no redistribute " FRR_REDIST_STR_OSPF6D " [route-map WORD]", |
508e53e2 | 1262 | NO_STR |
1263 | "Redistribute\n" | |
ab0181ee | 1264 | FRR_REDIST_HELP_STR_OSPF6D |
1d68dbfe DW |
1265 | "Route map reference\n" |
1266 | "Route map name\n") | |
508e53e2 | 1267 | { |
d62a17ae | 1268 | int idx_protocol = 2; |
1269 | int type; | |
e0ca5fde | 1270 | |
d62a17ae | 1271 | char *proto = argv[idx_protocol]->text; |
1272 | type = proto_redistnum(AFI_IP6, proto); | |
1273 | if (type < 0) | |
1274 | return CMD_WARNING_CONFIG_FAILED; | |
e26bbeba | 1275 | |
d62a17ae | 1276 | ospf6_asbr_redistribute_unset(type); |
e26bbeba | 1277 | |
d62a17ae | 1278 | return CMD_SUCCESS; |
508e53e2 | 1279 | } |
718e3744 | 1280 | |
d62a17ae | 1281 | int ospf6_redistribute_config_write(struct vty *vty) |
508e53e2 | 1282 | { |
d62a17ae | 1283 | int type; |
1284 | ||
1285 | for (type = 0; type < ZEBRA_ROUTE_MAX; type++) { | |
1286 | if (type == ZEBRA_ROUTE_OSPF6) | |
1287 | continue; | |
1288 | if (!ospf6_zebra_is_redistribute(type)) | |
1289 | continue; | |
1290 | ||
1291 | if (ospf6->rmap[type].name) | |
1292 | vty_out(vty, " redistribute %s route-map %s\n", | |
1293 | ZROUTE_NAME(type), ospf6->rmap[type].name); | |
1294 | else | |
1295 | vty_out(vty, " redistribute %s\n", ZROUTE_NAME(type)); | |
1296 | } | |
1297 | ||
1298 | return 0; | |
718e3744 | 1299 | } |
1300 | ||
d62a17ae | 1301 | static void ospf6_redistribute_show_config(struct vty *vty) |
718e3744 | 1302 | { |
d62a17ae | 1303 | int type; |
1304 | int nroute[ZEBRA_ROUTE_MAX]; | |
1305 | int total; | |
1306 | struct ospf6_route *route; | |
1307 | struct ospf6_external_info *info; | |
1308 | ||
1309 | total = 0; | |
1310 | for (type = 0; type < ZEBRA_ROUTE_MAX; type++) | |
1311 | nroute[type] = 0; | |
1312 | for (route = ospf6_route_head(ospf6->external_table); route; | |
1313 | route = ospf6_route_next(route)) { | |
1314 | info = route->route_option; | |
1315 | nroute[info->type]++; | |
1316 | total++; | |
1317 | } | |
718e3744 | 1318 | |
d62a17ae | 1319 | vty_out(vty, "Redistributing External Routes from:\n"); |
1320 | for (type = 0; type < ZEBRA_ROUTE_MAX; type++) { | |
1321 | if (type == ZEBRA_ROUTE_OSPF6) | |
1322 | continue; | |
1323 | if (!ospf6_zebra_is_redistribute(type)) | |
1324 | continue; | |
1325 | ||
1326 | if (ospf6->rmap[type].name) | |
1327 | vty_out(vty, " %d: %s with route-map \"%s\"%s\n", | |
1328 | nroute[type], ZROUTE_NAME(type), | |
1329 | ospf6->rmap[type].name, | |
1330 | (ospf6->rmap[type].map ? "" | |
1331 | : " (not found !)")); | |
1332 | else | |
1333 | vty_out(vty, " %d: %s\n", nroute[type], | |
1334 | ZROUTE_NAME(type)); | |
1335 | } | |
1336 | vty_out(vty, "Total %d routes\n", total); | |
1337 | } | |
718e3744 | 1338 | |
6b0655a2 | 1339 | |
508e53e2 | 1340 | /* Routemap Functions */ |
6ac29a51 | 1341 | static route_map_result_t |
d62a17ae | 1342 | ospf6_routemap_rule_match_address_prefixlist(void *rule, struct prefix *prefix, |
1343 | route_map_object_t type, | |
1344 | void *object) | |
508e53e2 | 1345 | { |
d62a17ae | 1346 | struct prefix_list *plist; |
718e3744 | 1347 | |
d62a17ae | 1348 | if (type != RMAP_OSPF6) |
1349 | return RMAP_NOMATCH; | |
718e3744 | 1350 | |
d62a17ae | 1351 | plist = prefix_list_lookup(AFI_IP6, (char *)rule); |
1352 | if (plist == NULL) | |
1353 | return RMAP_NOMATCH; | |
718e3744 | 1354 | |
d62a17ae | 1355 | return (prefix_list_apply(plist, prefix) == PREFIX_DENY ? RMAP_NOMATCH |
1356 | : RMAP_MATCH); | |
508e53e2 | 1357 | } |
718e3744 | 1358 | |
6ac29a51 | 1359 | static void * |
d62a17ae | 1360 | ospf6_routemap_rule_match_address_prefixlist_compile(const char *arg) |
508e53e2 | 1361 | { |
d62a17ae | 1362 | return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED, arg); |
718e3744 | 1363 | } |
1364 | ||
d62a17ae | 1365 | static void ospf6_routemap_rule_match_address_prefixlist_free(void *rule) |
718e3744 | 1366 | { |
d62a17ae | 1367 | XFREE(MTYPE_ROUTE_MAP_COMPILED, rule); |
508e53e2 | 1368 | } |
718e3744 | 1369 | |
d62a17ae | 1370 | struct route_map_rule_cmd ospf6_routemap_rule_match_address_prefixlist_cmd = { |
1371 | "ipv6 address prefix-list", | |
1372 | ospf6_routemap_rule_match_address_prefixlist, | |
1373 | ospf6_routemap_rule_match_address_prefixlist_compile, | |
1374 | ospf6_routemap_rule_match_address_prefixlist_free, | |
508e53e2 | 1375 | }; |
718e3744 | 1376 | |
42a7debf VT |
1377 | /* `match interface IFNAME' */ |
1378 | /* Match function should return 1 if match is success else return | |
1379 | zero. */ | |
1380 | static route_map_result_t | |
d62a17ae | 1381 | ospf6_routemap_rule_match_interface(void *rule, struct prefix *prefix, |
1382 | route_map_object_t type, void *object) | |
42a7debf | 1383 | { |
d62a17ae | 1384 | struct interface *ifp; |
1385 | struct ospf6_external_info *ei; | |
42a7debf | 1386 | |
d62a17ae | 1387 | if (type == RMAP_OSPF6) { |
1388 | ei = ((struct ospf6_route *)object)->route_option; | |
1389 | ifp = if_lookup_by_name((char *)rule, VRF_DEFAULT); | |
42a7debf | 1390 | |
d62a17ae | 1391 | if (ifp != NULL && ei->ifindex == ifp->ifindex) |
1392 | return RMAP_MATCH; | |
1393 | } | |
42a7debf | 1394 | |
d62a17ae | 1395 | return RMAP_NOMATCH; |
42a7debf VT |
1396 | } |
1397 | ||
1398 | /* Route map `interface' match statement. `arg' should be | |
1399 | interface name. */ | |
d62a17ae | 1400 | static void *ospf6_routemap_rule_match_interface_compile(const char *arg) |
42a7debf | 1401 | { |
d62a17ae | 1402 | return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED, arg); |
42a7debf VT |
1403 | } |
1404 | ||
1405 | /* Free route map's compiled `interface' value. */ | |
d62a17ae | 1406 | static void ospf6_routemap_rule_match_interface_free(void *rule) |
42a7debf | 1407 | { |
d62a17ae | 1408 | XFREE(MTYPE_ROUTE_MAP_COMPILED, rule); |
42a7debf VT |
1409 | } |
1410 | ||
1411 | /* Route map commands for interface matching. */ | |
d62a17ae | 1412 | struct route_map_rule_cmd ospf6_routemap_rule_match_interface_cmd = { |
1413 | "interface", ospf6_routemap_rule_match_interface, | |
1414 | ospf6_routemap_rule_match_interface_compile, | |
1415 | ospf6_routemap_rule_match_interface_free}; | |
42a7debf | 1416 | |
464015fa | 1417 | /* Match function for matching route tags */ |
d62a17ae | 1418 | static route_map_result_t ospf6_routemap_rule_match_tag(void *rule, |
1419 | struct prefix *prefix, | |
1420 | route_map_object_t type, | |
1421 | void *object) | |
464015fa | 1422 | { |
d62a17ae | 1423 | route_tag_t *tag = rule; |
1424 | struct ospf6_route *route = object; | |
1425 | struct ospf6_external_info *info = route->route_option; | |
464015fa | 1426 | |
d62a17ae | 1427 | if (type == RMAP_OSPF6 && info->tag == *tag) |
1428 | return RMAP_MATCH; | |
464015fa | 1429 | |
d62a17ae | 1430 | return RMAP_NOMATCH; |
464015fa CF |
1431 | } |
1432 | ||
d62a17ae | 1433 | static struct route_map_rule_cmd ospf6_routemap_rule_match_tag_cmd = { |
9d303b37 | 1434 | "tag", ospf6_routemap_rule_match_tag, route_map_rule_tag_compile, |
d62a17ae | 1435 | route_map_rule_tag_free, |
464015fa CF |
1436 | }; |
1437 | ||
6ac29a51 | 1438 | static route_map_result_t |
d62a17ae | 1439 | ospf6_routemap_rule_set_metric_type(void *rule, struct prefix *prefix, |
1440 | route_map_object_t type, void *object) | |
508e53e2 | 1441 | { |
d62a17ae | 1442 | char *metric_type = rule; |
1443 | struct ospf6_route *route = object; | |
718e3744 | 1444 | |
d62a17ae | 1445 | if (type != RMAP_OSPF6) |
1446 | return RMAP_OKAY; | |
718e3744 | 1447 | |
d62a17ae | 1448 | if (strcmp(metric_type, "type-2") == 0) |
1449 | route->path.metric_type = 2; | |
1450 | else | |
1451 | route->path.metric_type = 1; | |
718e3744 | 1452 | |
d62a17ae | 1453 | return RMAP_OKAY; |
508e53e2 | 1454 | } |
718e3744 | 1455 | |
d62a17ae | 1456 | static void *ospf6_routemap_rule_set_metric_type_compile(const char *arg) |
508e53e2 | 1457 | { |
d62a17ae | 1458 | if (strcmp(arg, "type-2") && strcmp(arg, "type-1")) |
1459 | return NULL; | |
1460 | return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED, arg); | |
718e3744 | 1461 | } |
1462 | ||
d62a17ae | 1463 | static void ospf6_routemap_rule_set_metric_type_free(void *rule) |
718e3744 | 1464 | { |
d62a17ae | 1465 | XFREE(MTYPE_ROUTE_MAP_COMPILED, rule); |
508e53e2 | 1466 | } |
718e3744 | 1467 | |
d62a17ae | 1468 | struct route_map_rule_cmd ospf6_routemap_rule_set_metric_type_cmd = { |
9d303b37 | 1469 | "metric-type", ospf6_routemap_rule_set_metric_type, |
d62a17ae | 1470 | ospf6_routemap_rule_set_metric_type_compile, |
1471 | ospf6_routemap_rule_set_metric_type_free, | |
508e53e2 | 1472 | }; |
718e3744 | 1473 | |
6ac29a51 | 1474 | static route_map_result_t |
d62a17ae | 1475 | ospf6_routemap_rule_set_metric(void *rule, struct prefix *prefix, |
1476 | route_map_object_t type, void *object) | |
508e53e2 | 1477 | { |
d62a17ae | 1478 | char *metric = rule; |
1479 | struct ospf6_route *route = object; | |
718e3744 | 1480 | |
d62a17ae | 1481 | if (type != RMAP_OSPF6) |
1482 | return RMAP_OKAY; | |
718e3744 | 1483 | |
d62a17ae | 1484 | route->path.cost = atoi(metric); |
1485 | return RMAP_OKAY; | |
508e53e2 | 1486 | } |
718e3744 | 1487 | |
d62a17ae | 1488 | static void *ospf6_routemap_rule_set_metric_compile(const char *arg) |
508e53e2 | 1489 | { |
d7c0a89a | 1490 | uint32_t metric; |
d62a17ae | 1491 | char *endp; |
1492 | metric = strtoul(arg, &endp, 0); | |
1493 | if (metric > OSPF_LS_INFINITY || *endp != '\0') | |
1494 | return NULL; | |
1495 | return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED, arg); | |
718e3744 | 1496 | } |
1497 | ||
d62a17ae | 1498 | static void ospf6_routemap_rule_set_metric_free(void *rule) |
718e3744 | 1499 | { |
d62a17ae | 1500 | XFREE(MTYPE_ROUTE_MAP_COMPILED, rule); |
508e53e2 | 1501 | } |
718e3744 | 1502 | |
d62a17ae | 1503 | struct route_map_rule_cmd ospf6_routemap_rule_set_metric_cmd = { |
9d303b37 | 1504 | "metric", ospf6_routemap_rule_set_metric, |
d62a17ae | 1505 | ospf6_routemap_rule_set_metric_compile, |
1506 | ospf6_routemap_rule_set_metric_free, | |
508e53e2 | 1507 | }; |
718e3744 | 1508 | |
6ac29a51 | 1509 | static route_map_result_t |
d62a17ae | 1510 | ospf6_routemap_rule_set_forwarding(void *rule, struct prefix *prefix, |
1511 | route_map_object_t type, void *object) | |
508e53e2 | 1512 | { |
d62a17ae | 1513 | char *forwarding = rule; |
1514 | struct ospf6_route *route = object; | |
1515 | struct ospf6_external_info *info = route->route_option; | |
718e3744 | 1516 | |
d62a17ae | 1517 | if (type != RMAP_OSPF6) |
1518 | return RMAP_OKAY; | |
718e3744 | 1519 | |
d62a17ae | 1520 | if (inet_pton(AF_INET6, forwarding, &info->forwarding) != 1) { |
1521 | memset(&info->forwarding, 0, sizeof(struct in6_addr)); | |
1522 | return RMAP_ERROR; | |
1523 | } | |
718e3744 | 1524 | |
d62a17ae | 1525 | return RMAP_OKAY; |
718e3744 | 1526 | } |
1527 | ||
d62a17ae | 1528 | static void *ospf6_routemap_rule_set_forwarding_compile(const char *arg) |
718e3744 | 1529 | { |
d62a17ae | 1530 | struct in6_addr a; |
1531 | if (inet_pton(AF_INET6, arg, &a) != 1) | |
1532 | return NULL; | |
1533 | return XSTRDUP(MTYPE_ROUTE_MAP_COMPILED, arg); | |
718e3744 | 1534 | } |
1535 | ||
d62a17ae | 1536 | static void ospf6_routemap_rule_set_forwarding_free(void *rule) |
718e3744 | 1537 | { |
d62a17ae | 1538 | XFREE(MTYPE_ROUTE_MAP_COMPILED, rule); |
508e53e2 | 1539 | } |
718e3744 | 1540 | |
d62a17ae | 1541 | struct route_map_rule_cmd ospf6_routemap_rule_set_forwarding_cmd = { |
9d303b37 | 1542 | "forwarding-address", ospf6_routemap_rule_set_forwarding, |
d62a17ae | 1543 | ospf6_routemap_rule_set_forwarding_compile, |
1544 | ospf6_routemap_rule_set_forwarding_free, | |
508e53e2 | 1545 | }; |
718e3744 | 1546 | |
d62a17ae | 1547 | static route_map_result_t ospf6_routemap_rule_set_tag(void *rule, |
1548 | struct prefix *prefix, | |
1549 | route_map_object_t type, | |
1550 | void *object) | |
464015fa | 1551 | { |
d62a17ae | 1552 | route_tag_t *tag = rule; |
1553 | struct ospf6_route *route = object; | |
1554 | struct ospf6_external_info *info = route->route_option; | |
464015fa | 1555 | |
d62a17ae | 1556 | if (type != RMAP_OSPF6) |
1557 | return RMAP_OKAY; | |
464015fa | 1558 | |
d62a17ae | 1559 | info->tag = *tag; |
1560 | return RMAP_OKAY; | |
464015fa CF |
1561 | } |
1562 | ||
d62a17ae | 1563 | static struct route_map_rule_cmd ospf6_routemap_rule_set_tag_cmd = { |
9d303b37 | 1564 | "tag", ospf6_routemap_rule_set_tag, route_map_rule_tag_compile, |
d62a17ae | 1565 | route_map_rule_tag_free, |
464015fa CF |
1566 | }; |
1567 | ||
d62a17ae | 1568 | static int route_map_command_status(struct vty *vty, int ret) |
508e53e2 | 1569 | { |
d62a17ae | 1570 | switch (ret) { |
1571 | case RMAP_RULE_MISSING: | |
1572 | vty_out(vty, "OSPF6 Can't find rule.\n"); | |
9ca25fed | 1573 | return CMD_WARNING_CONFIG_FAILED; |
d62a17ae | 1574 | break; |
1575 | case RMAP_COMPILE_ERROR: | |
1576 | vty_out(vty, "OSPF6 Argument is malformed.\n"); | |
9ca25fed | 1577 | return CMD_WARNING_CONFIG_FAILED; |
d62a17ae | 1578 | break; |
9ca25fed | 1579 | case RMAP_COMPILE_SUCCESS: |
d62a17ae | 1580 | break; |
1581 | } | |
9ca25fed DS |
1582 | |
1583 | return CMD_SUCCESS; | |
508e53e2 | 1584 | } |
718e3744 | 1585 | |
508e53e2 | 1586 | /* add "set metric-type" */ |
1587 | DEFUN (ospf6_routemap_set_metric_type, | |
1588 | ospf6_routemap_set_metric_type_cmd, | |
6147e2c6 | 1589 | "set metric-type <type-1|type-2>", |
508e53e2 | 1590 | "Set value\n" |
1591 | "Type of metric\n" | |
1592 | "OSPF6 external type 1 metric\n" | |
1593 | "OSPF6 external type 2 metric\n") | |
1594 | { | |
d62a17ae | 1595 | VTY_DECLVAR_CONTEXT(route_map_index, route_map_index); |
1596 | int idx_external = 2; | |
1597 | int ret = route_map_add_set(route_map_index, "metric-type", | |
1598 | argv[idx_external]->arg); | |
1599 | return route_map_command_status(vty, ret); | |
718e3744 | 1600 | } |
1601 | ||
508e53e2 | 1602 | /* delete "set metric-type" */ |
1603 | DEFUN (ospf6_routemap_no_set_metric_type, | |
1604 | ospf6_routemap_no_set_metric_type_cmd, | |
dab8cd00 | 1605 | "no set metric-type [<type-1|type-2>]", |
508e53e2 | 1606 | NO_STR |
1607 | "Set value\n" | |
1608 | "Type of metric\n" | |
1609 | "OSPF6 external type 1 metric\n" | |
1610 | "OSPF6 external type 2 metric\n") | |
718e3744 | 1611 | { |
d62a17ae | 1612 | VTY_DECLVAR_CONTEXT(route_map_index, route_map_index); |
1613 | char *ext = (argc == 4) ? argv[3]->text : NULL; | |
1614 | int ret = route_map_delete_set(route_map_index, "metric-type", ext); | |
1615 | return route_map_command_status(vty, ret); | |
508e53e2 | 1616 | } |
718e3744 | 1617 | |
508e53e2 | 1618 | /* add "set forwarding-address" */ |
1619 | DEFUN (ospf6_routemap_set_forwarding, | |
1620 | ospf6_routemap_set_forwarding_cmd, | |
1621 | "set forwarding-address X:X::X:X", | |
1622 | "Set value\n" | |
1623 | "Forwarding Address\n" | |
1624 | "IPv6 Address\n") | |
1625 | { | |
d62a17ae | 1626 | VTY_DECLVAR_CONTEXT(route_map_index, route_map_index); |
1627 | int idx_ipv6 = 2; | |
1628 | int ret = route_map_add_set(route_map_index, "forwarding-address", | |
1629 | argv[idx_ipv6]->arg); | |
1630 | return route_map_command_status(vty, ret); | |
508e53e2 | 1631 | } |
718e3744 | 1632 | |
508e53e2 | 1633 | /* delete "set forwarding-address" */ |
1634 | DEFUN (ospf6_routemap_no_set_forwarding, | |
1635 | ospf6_routemap_no_set_forwarding_cmd, | |
1636 | "no set forwarding-address X:X::X:X", | |
1637 | NO_STR | |
1638 | "Set value\n" | |
1639 | "Forwarding Address\n" | |
1640 | "IPv6 Address\n") | |
1641 | { | |
d62a17ae | 1642 | VTY_DECLVAR_CONTEXT(route_map_index, route_map_index); |
1643 | int idx_ipv6 = 3; | |
1644 | int ret = route_map_delete_set(route_map_index, "forwarding-address", | |
1645 | argv[idx_ipv6]->arg); | |
1646 | return route_map_command_status(vty, ret); | |
508e53e2 | 1647 | } |
718e3744 | 1648 | |
d62a17ae | 1649 | static void ospf6_routemap_init(void) |
508e53e2 | 1650 | { |
d62a17ae | 1651 | route_map_init(); |
b2575bc0 | 1652 | |
d62a17ae | 1653 | route_map_add_hook(ospf6_asbr_routemap_update); |
1654 | route_map_delete_hook(ospf6_asbr_routemap_update); | |
856ae1eb | 1655 | route_map_event_hook(ospf6_asbr_routemap_event); |
508e53e2 | 1656 | |
d62a17ae | 1657 | route_map_set_metric_hook(generic_set_add); |
1658 | route_map_no_set_metric_hook(generic_set_delete); | |
82f97584 | 1659 | |
d62a17ae | 1660 | route_map_match_tag_hook(generic_match_add); |
1661 | route_map_no_match_tag_hook(generic_match_delete); | |
e1a1b2ed | 1662 | |
d62a17ae | 1663 | route_map_match_ipv6_address_prefix_list_hook(generic_match_add); |
1664 | route_map_no_match_ipv6_address_prefix_list_hook(generic_match_delete); | |
e1a1b2ed | 1665 | |
d62a17ae | 1666 | route_map_match_interface_hook(generic_match_add); |
1667 | route_map_no_match_interface_hook(generic_match_delete); | |
e1a1b2ed | 1668 | |
d62a17ae | 1669 | route_map_install_match( |
1670 | &ospf6_routemap_rule_match_address_prefixlist_cmd); | |
1671 | route_map_install_match(&ospf6_routemap_rule_match_interface_cmd); | |
1672 | route_map_install_match(&ospf6_routemap_rule_match_tag_cmd); | |
42a7debf | 1673 | |
d62a17ae | 1674 | route_map_install_set(&ospf6_routemap_rule_set_metric_type_cmd); |
1675 | route_map_install_set(&ospf6_routemap_rule_set_metric_cmd); | |
1676 | route_map_install_set(&ospf6_routemap_rule_set_forwarding_cmd); | |
1677 | route_map_install_set(&ospf6_routemap_rule_set_tag_cmd); | |
508e53e2 | 1678 | |
d62a17ae | 1679 | /* ASE Metric Type (e.g. Type-1/Type-2) */ |
1680 | install_element(RMAP_NODE, &ospf6_routemap_set_metric_type_cmd); | |
1681 | install_element(RMAP_NODE, &ospf6_routemap_no_set_metric_type_cmd); | |
508e53e2 | 1682 | |
d62a17ae | 1683 | /* ASE Metric */ |
1684 | install_element(RMAP_NODE, &ospf6_routemap_set_forwarding_cmd); | |
1685 | install_element(RMAP_NODE, &ospf6_routemap_no_set_forwarding_cmd); | |
718e3744 | 1686 | } |
1687 | ||
6b0655a2 | 1688 | |
508e53e2 | 1689 | /* Display functions */ |
d62a17ae | 1690 | static char *ospf6_as_external_lsa_get_prefix_str(struct ospf6_lsa *lsa, |
1691 | char *buf, int buflen, | |
1692 | int pos) | |
e68a6767 | 1693 | { |
d62a17ae | 1694 | struct ospf6_as_external_lsa *external; |
1695 | struct in6_addr in6; | |
1696 | int prefix_length = 0; | |
1697 | ||
1698 | if (lsa) { | |
1699 | external = (struct ospf6_as_external_lsa *)OSPF6_LSA_HEADER_END( | |
1700 | lsa->header); | |
1701 | ||
1702 | if (pos == 0) { | |
1703 | ospf6_prefix_in6_addr(&in6, &external->prefix); | |
1704 | prefix_length = external->prefix.prefix_length; | |
1705 | } else { | |
1706 | in6 = *((struct in6_addr | |
1707 | *)((caddr_t)external | |
1708 | + sizeof(struct | |
1709 | ospf6_as_external_lsa) | |
1710 | + OSPF6_PREFIX_SPACE( | |
1711 | external->prefix | |
1712 | .prefix_length))); | |
1713 | } | |
1714 | if (buf) { | |
1715 | inet_ntop(AF_INET6, &in6, buf, buflen); | |
1716 | if (prefix_length) | |
1717 | sprintf(&buf[strlen(buf)], "/%d", | |
1718 | prefix_length); | |
1719 | } | |
e68a6767 | 1720 | } |
d62a17ae | 1721 | return (buf); |
e68a6767 DD |
1722 | } |
1723 | ||
d62a17ae | 1724 | static int ospf6_as_external_lsa_show(struct vty *vty, struct ospf6_lsa *lsa) |
718e3744 | 1725 | { |
d62a17ae | 1726 | struct ospf6_as_external_lsa *external; |
1727 | char buf[64]; | |
1728 | ||
1729 | assert(lsa->header); | |
1730 | external = (struct ospf6_as_external_lsa *)OSPF6_LSA_HEADER_END( | |
1731 | lsa->header); | |
1732 | ||
1733 | /* bits */ | |
1734 | snprintf(buf, sizeof(buf), "%c%c%c", | |
1735 | (CHECK_FLAG(external->bits_metric, OSPF6_ASBR_BIT_E) ? 'E' | |
1736 | : '-'), | |
1737 | (CHECK_FLAG(external->bits_metric, OSPF6_ASBR_BIT_F) ? 'F' | |
1738 | : '-'), | |
1739 | (CHECK_FLAG(external->bits_metric, OSPF6_ASBR_BIT_T) ? 'T' | |
1740 | : '-')); | |
1741 | ||
1742 | vty_out(vty, " Bits: %s\n", buf); | |
1743 | vty_out(vty, " Metric: %5lu\n", | |
d7c0a89a | 1744 | (unsigned long)OSPF6_ASBR_METRIC(external)); |
d62a17ae | 1745 | |
1746 | ospf6_prefix_options_printbuf(external->prefix.prefix_options, buf, | |
1747 | sizeof(buf)); | |
1748 | vty_out(vty, " Prefix Options: %s\n", buf); | |
1749 | ||
1750 | vty_out(vty, " Referenced LSType: %d\n", | |
1751 | ntohs(external->prefix.prefix_refer_lstype)); | |
1752 | ||
1753 | vty_out(vty, " Prefix: %s\n", | |
1754 | ospf6_as_external_lsa_get_prefix_str(lsa, buf, sizeof(buf), 0)); | |
1755 | ||
1756 | /* Forwarding-Address */ | |
1757 | if (CHECK_FLAG(external->bits_metric, OSPF6_ASBR_BIT_F)) { | |
1758 | vty_out(vty, " Forwarding-Address: %s\n", | |
1759 | ospf6_as_external_lsa_get_prefix_str(lsa, buf, | |
1760 | sizeof(buf), 1)); | |
1761 | } | |
1762 | ||
1763 | /* Tag */ | |
1764 | if (CHECK_FLAG(external->bits_metric, OSPF6_ASBR_BIT_T)) { | |
1765 | vty_out(vty, " Tag: %" ROUTE_TAG_PRI "\n", | |
1766 | ospf6_as_external_lsa_get_tag(lsa)); | |
1767 | } | |
1768 | ||
1769 | return 0; | |
718e3744 | 1770 | } |
1771 | ||
d62a17ae | 1772 | static void ospf6_asbr_external_route_show(struct vty *vty, |
1773 | struct ospf6_route *route) | |
718e3744 | 1774 | { |
d62a17ae | 1775 | struct ospf6_external_info *info = route->route_option; |
1776 | char prefix[PREFIX2STR_BUFFER], id[16], forwarding[64]; | |
d7c0a89a | 1777 | uint32_t tmp_id; |
d62a17ae | 1778 | |
1779 | prefix2str(&route->prefix, prefix, sizeof(prefix)); | |
1780 | tmp_id = ntohl(info->id); | |
1781 | inet_ntop(AF_INET, &tmp_id, id, sizeof(id)); | |
1782 | if (!IN6_IS_ADDR_UNSPECIFIED(&info->forwarding)) | |
1783 | inet_ntop(AF_INET6, &info->forwarding, forwarding, | |
1784 | sizeof(forwarding)); | |
1785 | else | |
1786 | snprintf(forwarding, sizeof(forwarding), ":: (ifindex %d)", | |
1787 | ospf6_route_get_first_nh_index(route)); | |
1788 | ||
1789 | vty_out(vty, "%c %-32s %-15s type-%d %5lu %s\n", | |
1790 | zebra_route_char(info->type), prefix, id, | |
1791 | route->path.metric_type, | |
d7c0a89a QY |
1792 | (unsigned long)(route->path.metric_type == 2 |
1793 | ? route->path.u.cost_e2 | |
1794 | : route->path.cost), | |
d62a17ae | 1795 | forwarding); |
718e3744 | 1796 | } |
1797 | ||
508e53e2 | 1798 | DEFUN (show_ipv6_ospf6_redistribute, |
1799 | show_ipv6_ospf6_redistribute_cmd, | |
1800 | "show ipv6 ospf6 redistribute", | |
1801 | SHOW_STR | |
1802 | IP6_STR | |
1803 | OSPF6_STR | |
1804 | "redistributing External information\n" | |
1805 | ) | |
718e3744 | 1806 | { |
d62a17ae | 1807 | struct ospf6_route *route; |
718e3744 | 1808 | |
d62a17ae | 1809 | OSPF6_CMD_CHECK_RUNNING(); |
b52a8a52 | 1810 | |
d62a17ae | 1811 | ospf6_redistribute_show_config(vty); |
718e3744 | 1812 | |
d62a17ae | 1813 | for (route = ospf6_route_head(ospf6->external_table); route; |
1814 | route = ospf6_route_next(route)) | |
1815 | ospf6_asbr_external_route_show(vty, route); | |
508e53e2 | 1816 | |
d62a17ae | 1817 | return CMD_SUCCESS; |
718e3744 | 1818 | } |
1819 | ||
d62a17ae | 1820 | struct ospf6_lsa_handler as_external_handler = { |
3981b5c7 VJ |
1821 | .lh_type = OSPF6_LSTYPE_AS_EXTERNAL, |
1822 | .lh_name = "AS-External", | |
1823 | .lh_short_name = "ASE", | |
1824 | .lh_show = ospf6_as_external_lsa_show, | |
1825 | .lh_get_prefix_str = ospf6_as_external_lsa_get_prefix_str, | |
996c9314 | 1826 | .lh_debug = 0}; |
508e53e2 | 1827 | |
d62a17ae | 1828 | void ospf6_asbr_init(void) |
718e3744 | 1829 | { |
d62a17ae | 1830 | ospf6_routemap_init(); |
508e53e2 | 1831 | |
d62a17ae | 1832 | ospf6_install_lsa_handler(&as_external_handler); |
718e3744 | 1833 | |
d62a17ae | 1834 | install_element(VIEW_NODE, &show_ipv6_ospf6_redistribute_cmd); |
508e53e2 | 1835 | |
d62a17ae | 1836 | install_element(OSPF6_NODE, &ospf6_redistribute_cmd); |
1837 | install_element(OSPF6_NODE, &ospf6_redistribute_routemap_cmd); | |
1838 | install_element(OSPF6_NODE, &no_ospf6_redistribute_cmd); | |
718e3744 | 1839 | } |
1840 | ||
d62a17ae | 1841 | void ospf6_asbr_redistribute_reset(void) |
d9628728 | 1842 | { |
d62a17ae | 1843 | int type; |
1844 | ||
1845 | for (type = 0; type < ZEBRA_ROUTE_MAX; type++) { | |
1846 | if (type == ZEBRA_ROUTE_OSPF6) | |
1847 | continue; | |
1848 | if (ospf6_zebra_is_redistribute(type)) | |
1849 | ospf6_asbr_redistribute_unset(type); | |
1850 | } | |
d9628728 CF |
1851 | } |
1852 | ||
d62a17ae | 1853 | void ospf6_asbr_terminate(void) |
ae2254aa | 1854 | { |
856ae1eb CS |
1855 | /* Cleanup route maps */ |
1856 | route_map_add_hook(NULL); | |
1857 | route_map_delete_hook(NULL); | |
1858 | route_map_event_hook(NULL); | |
d62a17ae | 1859 | route_map_finish(); |
ae2254aa | 1860 | } |
718e3744 | 1861 | |
508e53e2 | 1862 | DEFUN (debug_ospf6_asbr, |
1863 | debug_ospf6_asbr_cmd, | |
1864 | "debug ospf6 asbr", | |
1865 | DEBUG_STR | |
1866 | OSPF6_STR | |
1867 | "Debug OSPFv3 ASBR function\n" | |
1868 | ) | |
1869 | { | |
d62a17ae | 1870 | OSPF6_DEBUG_ASBR_ON(); |
1871 | return CMD_SUCCESS; | |
508e53e2 | 1872 | } |
1873 | ||
1874 | DEFUN (no_debug_ospf6_asbr, | |
1875 | no_debug_ospf6_asbr_cmd, | |
1876 | "no debug ospf6 asbr", | |
1877 | NO_STR | |
1878 | DEBUG_STR | |
1879 | OSPF6_STR | |
1880 | "Debug OSPFv3 ASBR function\n" | |
1881 | ) | |
1882 | { | |
d62a17ae | 1883 | OSPF6_DEBUG_ASBR_OFF(); |
1884 | return CMD_SUCCESS; | |
508e53e2 | 1885 | } |
1886 | ||
d62a17ae | 1887 | int config_write_ospf6_debug_asbr(struct vty *vty) |
508e53e2 | 1888 | { |
d62a17ae | 1889 | if (IS_OSPF6_DEBUG_ASBR) |
1890 | vty_out(vty, "debug ospf6 asbr\n"); | |
1891 | return 0; | |
508e53e2 | 1892 | } |
1893 | ||
d62a17ae | 1894 | void install_element_ospf6_debug_asbr() |
92300491 | 1895 | { |
d62a17ae | 1896 | install_element(ENABLE_NODE, &debug_ospf6_asbr_cmd); |
1897 | install_element(ENABLE_NODE, &no_debug_ospf6_asbr_cmd); | |
1898 | install_element(CONFIG_NODE, &debug_ospf6_asbr_cmd); | |
1899 | install_element(CONFIG_NODE, &no_debug_ospf6_asbr_cmd); | |
92300491 | 1900 | } |