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f3ccedaa CF |
1 | /* |
2 | * IS-IS Rout(e)ing protocol - isis_redist.c | |
3 | * | |
4 | * Copyright (C) 2013-2015 Christian Franke <chris@opensourcerouting.org> | |
5 | * | |
d62a17ae | 6 | * This program 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 Free | |
8 | * Software Foundation; either version 2 of the License, or (at your option) | |
f3ccedaa CF |
9 | * any later version. |
10 | * | |
d62a17ae | 11 | * This program is distributed in the hope that it will be useful,but WITHOUT |
12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
f3ccedaa | 14 | * more details. |
896014f4 DL |
15 | * |
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 | |
f3ccedaa CF |
19 | */ |
20 | ||
21 | #include <zebra.h> | |
22 | ||
23 | #include "command.h" | |
24 | #include "if.h" | |
25 | #include "linklist.h" | |
26 | #include "memory.h" | |
4a1ab8e4 | 27 | #include "isis_memory.h" |
f3ccedaa CF |
28 | #include "prefix.h" |
29 | #include "routemap.h" | |
30 | #include "stream.h" | |
31 | #include "table.h" | |
32 | #include "vty.h" | |
d43d2df5 | 33 | #include "srcdest_table.h" |
f3ccedaa CF |
34 | |
35 | #include "isisd/dict.h" | |
36 | #include "isisd/isis_constants.h" | |
37 | #include "isisd/isis_common.h" | |
38 | #include "isisd/isis_flags.h" | |
39 | #include "isisd/isis_misc.h" | |
40 | #include "isisd/isis_circuit.h" | |
f3ccedaa CF |
41 | #include "isisd/isisd.h" |
42 | #include "isisd/isis_lsp.h" | |
43 | #include "isisd/isis_route.h" | |
44 | #include "isisd/isis_zebra.h" | |
45 | ||
d62a17ae | 46 | static int redist_protocol(int family) |
f3ccedaa | 47 | { |
d62a17ae | 48 | if (family == AF_INET) |
49 | return 0; | |
50 | if (family == AF_INET6) | |
51 | return 1; | |
f3ccedaa | 52 | |
d62a17ae | 53 | assert(!"Unsupported address family!"); |
54 | return 0; | |
f3ccedaa CF |
55 | } |
56 | ||
d62a17ae | 57 | static afi_t afi_for_redist_protocol(int protocol) |
113b1946 | 58 | { |
d62a17ae | 59 | if (protocol == 0) |
60 | return AFI_IP; | |
61 | if (protocol == 1) | |
62 | return AFI_IP6; | |
113b1946 | 63 | |
d62a17ae | 64 | assert(!"Unknown redist protocol!"); |
65 | return AFI_IP; | |
113b1946 CF |
66 | } |
67 | ||
d62a17ae | 68 | static struct route_table *get_ext_info(struct isis *i, int family) |
f3ccedaa | 69 | { |
d62a17ae | 70 | int protocol = redist_protocol(family); |
f3ccedaa | 71 | |
d62a17ae | 72 | return i->ext_info[protocol]; |
f3ccedaa CF |
73 | } |
74 | ||
d62a17ae | 75 | static struct isis_redist *get_redist_settings(struct isis_area *area, |
76 | int family, int type, int level) | |
f3ccedaa | 77 | { |
d62a17ae | 78 | int protocol = redist_protocol(family); |
f3ccedaa | 79 | |
d62a17ae | 80 | return &area->redist_settings[protocol][type][level - 1]; |
f3ccedaa CF |
81 | } |
82 | ||
d62a17ae | 83 | struct route_table *get_ext_reach(struct isis_area *area, int family, int level) |
f3ccedaa | 84 | { |
d62a17ae | 85 | int protocol = redist_protocol(family); |
f3ccedaa | 86 | |
d62a17ae | 87 | return area->ext_reach[protocol][level - 1]; |
f3ccedaa CF |
88 | } |
89 | ||
f3ccedaa CF |
90 | /* Install external reachability information into a |
91 | * specific area for a specific level. | |
92 | * Schedule an lsp regenerate if necessary */ | |
d62a17ae | 93 | static void isis_redist_install(struct isis_area *area, int level, |
d43d2df5 CF |
94 | const struct prefix *p, |
95 | const struct prefix_ipv6 *src_p, | |
96 | struct isis_ext_info *info) | |
f3ccedaa | 97 | { |
d62a17ae | 98 | int family = p->family; |
99 | struct route_table *er_table = get_ext_reach(area, family, level); | |
100 | struct route_node *er_node; | |
101 | ||
102 | if (!er_table) { | |
103 | zlog_warn( | |
104 | "%s: External reachability table of area %s" | |
105 | " is not initialized.", | |
106 | __func__, area->area_tag); | |
107 | return; | |
108 | } | |
109 | ||
d43d2df5 | 110 | er_node = srcdest_rnode_get(er_table, p, src_p); |
d62a17ae | 111 | if (er_node->info) { |
112 | route_unlock_node(er_node); | |
113 | ||
114 | /* Don't update/reschedule lsp generation if nothing changed. */ | |
115 | if (!memcmp(er_node->info, info, sizeof(*info))) | |
116 | return; | |
117 | } else { | |
118 | er_node->info = XMALLOC(MTYPE_ISIS_EXT_INFO, sizeof(*info)); | |
119 | } | |
120 | ||
121 | memcpy(er_node->info, info, sizeof(*info)); | |
122 | lsp_regenerate_schedule(area, level, 0); | |
f3ccedaa CF |
123 | } |
124 | ||
125 | /* Remove external reachability information from a | |
126 | * specific area for a specific level. | |
127 | * Schedule an lsp regenerate if necessary. */ | |
d62a17ae | 128 | static void isis_redist_uninstall(struct isis_area *area, int level, |
d43d2df5 CF |
129 | const struct prefix *p, |
130 | const struct prefix_ipv6 *src_p) | |
f3ccedaa | 131 | { |
d62a17ae | 132 | int family = p->family; |
133 | struct route_table *er_table = get_ext_reach(area, family, level); | |
134 | struct route_node *er_node; | |
135 | ||
136 | if (!er_table) { | |
137 | zlog_warn( | |
138 | "%s: External reachability table of area %s" | |
139 | " is not initialized.", | |
140 | __func__, area->area_tag); | |
141 | return; | |
142 | } | |
143 | ||
d43d2df5 | 144 | er_node = srcdest_rnode_lookup(er_table, p, src_p); |
d62a17ae | 145 | if (!er_node) |
146 | return; | |
147 | else | |
148 | route_unlock_node(er_node); | |
149 | ||
150 | if (!er_node->info) | |
151 | return; | |
152 | ||
153 | XFREE(MTYPE_ISIS_EXT_INFO, er_node->info); | |
154 | route_unlock_node(er_node); | |
155 | lsp_regenerate_schedule(area, level, 0); | |
f3ccedaa CF |
156 | } |
157 | ||
158 | /* Update external reachability info of area for a given level | |
159 | * and prefix, using the given redistribution settings. */ | |
d62a17ae | 160 | static void isis_redist_update_ext_reach(struct isis_area *area, int level, |
161 | struct isis_redist *redist, | |
d43d2df5 CF |
162 | const struct prefix *p, |
163 | const struct prefix_ipv6 *src_p, | |
d62a17ae | 164 | struct isis_ext_info *info) |
f3ccedaa | 165 | { |
d62a17ae | 166 | struct isis_ext_info area_info; |
167 | route_map_result_t map_ret; | |
168 | ||
169 | memcpy(&area_info, info, sizeof(area_info)); | |
8cfc8c5c | 170 | area_info.metric = redist->metric; |
d62a17ae | 171 | |
172 | if (redist->map_name) { | |
173 | map_ret = | |
36de6e0e | 174 | route_map_apply(redist->map, p, RMAP_ISIS, &area_info); |
d62a17ae | 175 | if (map_ret == RMAP_DENYMATCH) |
176 | area_info.distance = 255; | |
177 | } | |
178 | ||
179 | /* Allow synthesized default routes only on always orignate */ | |
180 | if (area_info.origin == DEFAULT_ROUTE | |
181 | && redist->redist != DEFAULT_ORIGINATE_ALWAYS) | |
182 | area_info.distance = 255; | |
183 | ||
184 | if (area_info.distance < 255) | |
d43d2df5 | 185 | isis_redist_install(area, level, p, src_p, &area_info); |
d62a17ae | 186 | else |
d43d2df5 | 187 | isis_redist_uninstall(area, level, p, src_p); |
f3ccedaa CF |
188 | } |
189 | ||
d62a17ae | 190 | static void isis_redist_ensure_default(struct isis *isis, int family) |
f3ccedaa | 191 | { |
d62a17ae | 192 | struct prefix p; |
193 | struct route_table *ei_table = get_ext_info(isis, family); | |
194 | struct route_node *ei_node; | |
195 | struct isis_ext_info *info; | |
196 | ||
197 | if (family == AF_INET) { | |
198 | p.family = AF_INET; | |
199 | p.prefixlen = 0; | |
200 | memset(&p.u.prefix4, 0, sizeof(p.u.prefix4)); | |
201 | } else if (family == AF_INET6) { | |
202 | p.family = AF_INET6; | |
203 | p.prefixlen = 0; | |
204 | memset(&p.u.prefix6, 0, sizeof(p.u.prefix6)); | |
205 | } else | |
206 | assert(!"Unknown family!"); | |
207 | ||
d43d2df5 | 208 | ei_node = srcdest_rnode_get(ei_table, &p, NULL); |
d62a17ae | 209 | if (ei_node->info) { |
210 | route_unlock_node(ei_node); | |
211 | return; | |
212 | } | |
213 | ||
214 | ei_node->info = | |
215 | XCALLOC(MTYPE_ISIS_EXT_INFO, sizeof(struct isis_ext_info)); | |
216 | ||
217 | info = ei_node->info; | |
218 | info->origin = DEFAULT_ROUTE; | |
219 | info->distance = 254; | |
220 | info->metric = MAX_WIDE_PATH_METRIC; | |
f3ccedaa CF |
221 | } |
222 | ||
223 | /* Handle notification about route being added */ | |
d43d2df5 CF |
224 | void isis_redist_add(int type, struct prefix *p, struct prefix_ipv6 *src_p, |
225 | uint8_t distance, uint32_t metric) | |
f3ccedaa | 226 | { |
d62a17ae | 227 | int family = p->family; |
228 | struct route_table *ei_table = get_ext_info(isis, family); | |
229 | struct route_node *ei_node; | |
230 | struct isis_ext_info *info; | |
231 | struct listnode *node; | |
232 | struct isis_area *area; | |
233 | int level; | |
234 | struct isis_redist *redist; | |
235 | ||
236 | char debug_buf[BUFSIZ]; | |
237 | prefix2str(p, debug_buf, sizeof(debug_buf)); | |
238 | ||
c44bd447 PZ |
239 | zlog_debug("%s: New route %s from %s: distance %d.", __func__, |
240 | debug_buf, zebra_route_string(type), distance); | |
d62a17ae | 241 | |
242 | if (!ei_table) { | |
243 | zlog_warn("%s: External information table not initialized.", | |
244 | __func__); | |
245 | return; | |
246 | } | |
247 | ||
d43d2df5 | 248 | ei_node = srcdest_rnode_get(ei_table, p, src_p); |
d62a17ae | 249 | if (ei_node->info) |
250 | route_unlock_node(ei_node); | |
251 | else | |
252 | ei_node->info = XCALLOC(MTYPE_ISIS_EXT_INFO, | |
253 | sizeof(struct isis_ext_info)); | |
254 | ||
255 | info = ei_node->info; | |
256 | info->origin = type; | |
257 | info->distance = distance; | |
258 | info->metric = metric; | |
259 | ||
d43d2df5 CF |
260 | if (is_default_prefix(p) |
261 | && (!src_p || !src_p->prefixlen)) { | |
d62a17ae | 262 | type = DEFAULT_ROUTE; |
d43d2df5 | 263 | } |
d62a17ae | 264 | |
265 | for (ALL_LIST_ELEMENTS_RO(isis->area_list, node, area)) | |
266 | for (level = 1; level <= ISIS_LEVELS; level++) { | |
267 | redist = get_redist_settings(area, family, type, level); | |
268 | if (!redist->redist) | |
269 | continue; | |
270 | ||
271 | isis_redist_update_ext_reach(area, level, redist, p, | |
d43d2df5 | 272 | src_p, info); |
d62a17ae | 273 | } |
f3ccedaa CF |
274 | } |
275 | ||
d43d2df5 | 276 | void isis_redist_delete(int type, struct prefix *p, struct prefix_ipv6 *src_p) |
f3ccedaa | 277 | { |
d62a17ae | 278 | int family = p->family; |
279 | struct route_table *ei_table = get_ext_info(isis, family); | |
280 | struct route_node *ei_node; | |
281 | struct listnode *node; | |
282 | struct isis_area *area; | |
283 | int level; | |
284 | struct isis_redist *redist; | |
285 | ||
286 | char debug_buf[BUFSIZ]; | |
287 | prefix2str(p, debug_buf, sizeof(debug_buf)); | |
288 | ||
289 | zlog_debug("%s: Removing route %s from %s.", __func__, debug_buf, | |
290 | zebra_route_string(type)); | |
291 | ||
d43d2df5 CF |
292 | if (is_default_prefix(p) |
293 | && (!src_p || !src_p->prefixlen)) { | |
d62a17ae | 294 | /* Don't remove default route but add synthetic route for use |
295 | * by "default-information originate always". Areas without the | |
296 | * "always" setting will ignore routes with origin | |
297 | * DEFAULT_ROUTE. */ | |
d43d2df5 CF |
298 | isis_redist_add(DEFAULT_ROUTE, p, NULL, |
299 | 254, MAX_WIDE_PATH_METRIC); | |
d62a17ae | 300 | return; |
301 | } | |
302 | ||
303 | if (!ei_table) { | |
304 | zlog_warn("%s: External information table not initialized.", | |
305 | __func__); | |
306 | return; | |
307 | } | |
308 | ||
d43d2df5 | 309 | ei_node = srcdest_rnode_lookup(ei_table, p, src_p); |
d62a17ae | 310 | if (!ei_node || !ei_node->info) { |
311 | char buf[BUFSIZ]; | |
312 | prefix2str(p, buf, sizeof(buf)); | |
313 | zlog_warn( | |
314 | "%s: Got a delete for %s route %s, but that route" | |
315 | " was never added.", | |
316 | __func__, zebra_route_string(type), buf); | |
317 | if (ei_node) | |
318 | route_unlock_node(ei_node); | |
319 | return; | |
320 | } | |
321 | route_unlock_node(ei_node); | |
322 | ||
323 | for (ALL_LIST_ELEMENTS_RO(isis->area_list, node, area)) | |
c30f211b | 324 | for (level = ISIS_LEVEL1; level <= ISIS_LEVEL2; level++) { |
d62a17ae | 325 | redist = get_redist_settings(area, family, type, level); |
326 | if (!redist->redist) | |
327 | continue; | |
328 | ||
d43d2df5 | 329 | isis_redist_uninstall(area, level, p, src_p); |
d62a17ae | 330 | } |
331 | ||
332 | XFREE(MTYPE_ISIS_EXT_INFO, ei_node->info); | |
333 | route_unlock_node(ei_node); | |
f3ccedaa CF |
334 | } |
335 | ||
d62a17ae | 336 | static void isis_redist_routemap_set(struct isis_redist *redist, |
337 | const char *routemap) | |
f3ccedaa | 338 | { |
d62a17ae | 339 | if (redist->map_name) { |
340 | XFREE(MTYPE_ISIS, redist->map_name); | |
341 | redist->map = NULL; | |
342 | } | |
343 | ||
344 | if (routemap && strlen(routemap)) { | |
345 | redist->map_name = XSTRDUP(MTYPE_ISIS, routemap); | |
346 | redist->map = route_map_lookup_by_name(routemap); | |
347 | } | |
f3ccedaa CF |
348 | } |
349 | ||
d62a17ae | 350 | static void isis_redist_update_zebra_subscriptions(struct isis *isis) |
f3ccedaa | 351 | { |
d62a17ae | 352 | struct listnode *node; |
353 | struct isis_area *area; | |
354 | int type; | |
355 | int level; | |
356 | int protocol; | |
357 | ||
358 | char do_subscribe[REDIST_PROTOCOL_COUNT][ZEBRA_ROUTE_MAX + 1]; | |
359 | ||
360 | memset(do_subscribe, 0, sizeof(do_subscribe)); | |
361 | ||
362 | for (ALL_LIST_ELEMENTS_RO(isis->area_list, node, area)) | |
363 | for (protocol = 0; protocol < REDIST_PROTOCOL_COUNT; protocol++) | |
364 | for (type = 0; type < ZEBRA_ROUTE_MAX + 1; type++) | |
365 | for (level = 0; level < ISIS_LEVELS; level++) | |
9d303b37 DL |
366 | if (area->redist_settings[protocol] |
367 | [type] | |
368 | [level].redist) | |
d62a17ae | 369 | do_subscribe[protocol][type] = |
370 | 1; | |
371 | ||
372 | for (protocol = 0; protocol < REDIST_PROTOCOL_COUNT; protocol++) | |
373 | for (type = 0; type < ZEBRA_ROUTE_MAX + 1; type++) { | |
374 | /* This field is actually controlling transmission of | |
375 | * the IS-IS | |
376 | * routes to Zebra and has nothing to do with | |
377 | * redistribution, | |
378 | * so skip it. */ | |
7c0cbd0e | 379 | if (type == PROTO_TYPE) |
d62a17ae | 380 | continue; |
381 | ||
382 | afi_t afi = afi_for_redist_protocol(protocol); | |
383 | ||
384 | if (do_subscribe[protocol][type]) | |
385 | isis_zebra_redistribute_set(afi, type); | |
386 | else | |
387 | isis_zebra_redistribute_unset(afi, type); | |
388 | } | |
f3ccedaa CF |
389 | } |
390 | ||
8b104c10 EDP |
391 | void isis_redist_set(struct isis_area *area, int level, int family, int type, |
392 | uint32_t metric, const char *routemap, int originate_type) | |
f3ccedaa | 393 | { |
d62a17ae | 394 | int protocol = redist_protocol(family); |
395 | struct isis_redist *redist = | |
396 | get_redist_settings(area, family, type, level); | |
397 | int i; | |
398 | struct route_table *ei_table; | |
399 | struct route_node *rn; | |
400 | struct isis_ext_info *info; | |
401 | ||
402 | redist->redist = (type == DEFAULT_ROUTE) ? originate_type : 1; | |
403 | redist->metric = metric; | |
404 | isis_redist_routemap_set(redist, routemap); | |
405 | ||
406 | if (!area->ext_reach[protocol][level - 1]) { | |
d43d2df5 | 407 | area->ext_reach[protocol][level - 1] = srcdest_table_init(); |
d62a17ae | 408 | } |
409 | ||
d43d2df5 | 410 | for (i = 0; i < REDIST_PROTOCOL_COUNT; i++) { |
d62a17ae | 411 | if (!area->isis->ext_info[i]) { |
d43d2df5 | 412 | area->isis->ext_info[i] = srcdest_table_init(); |
d62a17ae | 413 | } |
d43d2df5 | 414 | } |
d62a17ae | 415 | |
416 | isis_redist_update_zebra_subscriptions(area->isis); | |
417 | ||
418 | if (type == DEFAULT_ROUTE && originate_type == DEFAULT_ORIGINATE_ALWAYS) | |
419 | isis_redist_ensure_default(area->isis, family); | |
420 | ||
421 | ei_table = get_ext_info(area->isis, family); | |
d43d2df5 | 422 | for (rn = route_top(ei_table); rn; rn = srcdest_route_next(rn)) { |
d62a17ae | 423 | if (!rn->info) |
424 | continue; | |
425 | info = rn->info; | |
426 | ||
d43d2df5 CF |
427 | const struct prefix *p, *src_p; |
428 | ||
429 | srcdest_rnode_prefixes(rn, &p, &src_p); | |
430 | ||
d62a17ae | 431 | if (type == DEFAULT_ROUTE) { |
d43d2df5 CF |
432 | if (!is_default_prefix(p) |
433 | || (src_p && src_p->prefixlen)) { | |
d62a17ae | 434 | continue; |
d43d2df5 | 435 | } |
d62a17ae | 436 | } else { |
437 | if (info->origin != type) | |
438 | continue; | |
439 | } | |
440 | ||
d43d2df5 | 441 | isis_redist_update_ext_reach(area, level, redist, p, |
36de6e0e A |
442 | (const struct prefix_ipv6 *)src_p, |
443 | info); | |
d62a17ae | 444 | } |
f3ccedaa CF |
445 | } |
446 | ||
8b104c10 | 447 | void isis_redist_unset(struct isis_area *area, int level, int family, int type) |
f3ccedaa | 448 | { |
d62a17ae | 449 | struct isis_redist *redist = |
450 | get_redist_settings(area, family, type, level); | |
451 | struct route_table *er_table = get_ext_reach(area, family, level); | |
452 | struct route_node *rn; | |
453 | struct isis_ext_info *info; | |
454 | ||
455 | if (!redist->redist) | |
456 | return; | |
457 | ||
458 | redist->redist = 0; | |
459 | if (!er_table) { | |
460 | zlog_warn("%s: External reachability table uninitialized.", | |
461 | __func__); | |
462 | return; | |
463 | } | |
464 | ||
d43d2df5 | 465 | for (rn = route_top(er_table); rn; rn = srcdest_route_next(rn)) { |
d62a17ae | 466 | if (!rn->info) |
467 | continue; | |
468 | info = rn->info; | |
469 | ||
d43d2df5 CF |
470 | const struct prefix *p, *src_p; |
471 | srcdest_rnode_prefixes(rn, &p, &src_p); | |
472 | ||
d62a17ae | 473 | if (type == DEFAULT_ROUTE) { |
d43d2df5 CF |
474 | if (!is_default_prefix(p) |
475 | || (src_p && src_p->prefixlen)) { | |
d62a17ae | 476 | continue; |
d43d2df5 | 477 | } |
d62a17ae | 478 | } else { |
479 | if (info->origin != type) | |
480 | continue; | |
481 | } | |
482 | ||
483 | XFREE(MTYPE_ISIS_EXT_INFO, rn->info); | |
484 | route_unlock_node(rn); | |
485 | } | |
486 | ||
487 | lsp_regenerate_schedule(area, level, 0); | |
488 | isis_redist_update_zebra_subscriptions(area->isis); | |
f3ccedaa CF |
489 | } |
490 | ||
d62a17ae | 491 | void isis_redist_area_finish(struct isis_area *area) |
f3ccedaa | 492 | { |
d62a17ae | 493 | int protocol; |
494 | int level; | |
495 | int type; | |
496 | ||
497 | for (protocol = 0; protocol < REDIST_PROTOCOL_COUNT; protocol++) | |
498 | for (level = 0; level < ISIS_LEVELS; level++) { | |
499 | for (type = 0; type < ZEBRA_ROUTE_MAX + 1; type++) { | |
500 | struct isis_redist *redist; | |
501 | ||
502 | redist = &area->redist_settings[protocol][type] | |
503 | [level]; | |
504 | redist->redist = 0; | |
505 | if (redist->map_name) | |
506 | XFREE(MTYPE_ISIS, redist->map_name); | |
507 | } | |
508 | route_table_finish(area->ext_reach[protocol][level]); | |
509 | } | |
510 | ||
511 | isis_redist_update_zebra_subscriptions(area->isis); | |
f3ccedaa CF |
512 | } |
513 | ||
a041ac8e | 514 | #ifdef FABRICD |
49d41a26 DS |
515 | DEFUN (isis_redistribute, |
516 | isis_redistribute_cmd, | |
ef020087 | 517 | "redistribute <ipv4|ipv6> " PROTO_REDIST_STR |
ef020087 | 518 | " [<metric (0-16777215)|route-map WORD>]", |
49d41a26 DS |
519 | REDIST_STR |
520 | "Redistribute IPv4 routes\n" | |
521 | "Redistribute IPv6 routes\n" | |
7c0cbd0e | 522 | PROTO_REDIST_HELP |
49d41a26 DS |
523 | "Metric for redistributed routes\n" |
524 | "ISIS default metric\n" | |
525 | "Route map reference\n" | |
526 | "Pointer to route-map entries\n") | |
f3ccedaa | 527 | { |
d62a17ae | 528 | int idx_afi = 1; |
529 | int idx_protocol = 2; | |
ef020087 | 530 | int idx_metric_rmap = fabricd ? 3 : 4; |
d62a17ae | 531 | VTY_DECLVAR_CONTEXT(isis_area, area); |
532 | int family; | |
533 | int afi; | |
534 | int type; | |
535 | int level; | |
8cfc8c5c | 536 | unsigned long metric = 0; |
d62a17ae | 537 | const char *routemap = NULL; |
538 | ||
539 | family = str2family(argv[idx_afi]->text); | |
540 | if (family < 0) | |
541 | return CMD_WARNING_CONFIG_FAILED; | |
542 | ||
543 | afi = family2afi(family); | |
544 | if (!afi) | |
545 | return CMD_WARNING_CONFIG_FAILED; | |
546 | ||
547 | type = proto_redistnum(afi, argv[idx_protocol]->text); | |
548 | if (type < 0) | |
549 | return CMD_WARNING_CONFIG_FAILED; | |
550 | ||
a041ac8e | 551 | level = 2; |
d62a17ae | 552 | |
553 | if ((area->is_type & level) != level) { | |
554 | vty_out(vty, "Node is not a level-%d IS\n", level); | |
555 | return CMD_WARNING_CONFIG_FAILED; | |
556 | } | |
557 | ||
d62a17ae | 558 | if (argc > idx_metric_rmap + 1) { |
559 | if (argv[idx_metric_rmap + 1]->arg[0] == '\0') | |
560 | return CMD_WARNING_CONFIG_FAILED; | |
561 | ||
562 | if (strmatch(argv[idx_metric_rmap]->text, "metric")) { | |
563 | char *endp; | |
564 | metric = strtoul(argv[idx_metric_rmap + 1]->arg, &endp, | |
565 | 10); | |
566 | ||
567 | if (*endp != '\0') | |
568 | return CMD_WARNING_CONFIG_FAILED; | |
569 | } else { | |
570 | routemap = argv[idx_metric_rmap + 1]->arg; | |
571 | } | |
572 | } | |
573 | ||
574 | isis_redist_set(area, level, family, type, metric, routemap, 0); | |
575 | return 0; | |
f3ccedaa CF |
576 | } |
577 | ||
49d41a26 DS |
578 | DEFUN (no_isis_redistribute, |
579 | no_isis_redistribute_cmd, | |
a041ac8e EDP |
580 | "no redistribute <ipv4|ipv6> " PROTO_REDIST_STR, |
581 | NO_STR | |
49d41a26 DS |
582 | REDIST_STR |
583 | "Redistribute IPv4 routes\n" | |
584 | "Redistribute IPv6 routes\n" | |
a041ac8e | 585 | PROTO_REDIST_HELP) |
f3ccedaa | 586 | { |
d62a17ae | 587 | int idx_afi = 2; |
588 | int idx_protocol = 3; | |
d62a17ae | 589 | VTY_DECLVAR_CONTEXT(isis_area, area); |
590 | int type; | |
591 | int level; | |
592 | int family; | |
593 | int afi; | |
594 | ||
595 | family = str2family(argv[idx_afi]->arg); | |
596 | if (family < 0) | |
597 | return CMD_WARNING_CONFIG_FAILED; | |
598 | ||
599 | afi = family2afi(family); | |
600 | if (!afi) | |
601 | return CMD_WARNING_CONFIG_FAILED; | |
602 | ||
603 | type = proto_redistnum(afi, argv[idx_protocol]->text); | |
604 | if (type < 0) | |
605 | return CMD_WARNING_CONFIG_FAILED; | |
606 | ||
a041ac8e | 607 | level = 2; |
d62a17ae | 608 | |
609 | isis_redist_unset(area, level, family, type); | |
610 | return 0; | |
f3ccedaa CF |
611 | } |
612 | ||
49d41a26 DS |
613 | DEFUN (isis_default_originate, |
614 | isis_default_originate_cmd, | |
ef020087 | 615 | "default-information originate <ipv4|ipv6>" |
ef020087 | 616 | " [always] [<metric (0-16777215)|route-map WORD>]", |
49d41a26 DS |
617 | "Control distribution of default information\n" |
618 | "Distribute a default route\n" | |
619 | "Distribute default route for IPv4\n" | |
620 | "Distribute default route for IPv6\n" | |
49d41a26 DS |
621 | "Always advertise default route\n" |
622 | "Metric for default route\n" | |
623 | "ISIS default metric\n" | |
624 | "Route map reference\n" | |
625 | "Pointer to route-map entries\n") | |
f3ccedaa | 626 | { |
d62a17ae | 627 | int idx_afi = 2; |
ef020087 CF |
628 | int idx_always = fabricd ? 3 : 4; |
629 | int idx_metric_rmap = fabricd ? 3 : 4; | |
d62a17ae | 630 | VTY_DECLVAR_CONTEXT(isis_area, area); |
631 | int family; | |
632 | int originate_type = DEFAULT_ORIGINATE; | |
633 | int level; | |
8cfc8c5c | 634 | unsigned long metric = 0; |
d62a17ae | 635 | const char *routemap = NULL; |
636 | ||
637 | family = str2family(argv[idx_afi]->text); | |
638 | if (family < 0) | |
639 | return CMD_WARNING_CONFIG_FAILED; | |
640 | ||
8b104c10 | 641 | level = 2; |
d62a17ae | 642 | |
643 | if ((area->is_type & level) != level) { | |
644 | vty_out(vty, "Node is not a level-%d IS\n", level); | |
645 | return CMD_WARNING_CONFIG_FAILED; | |
646 | } | |
647 | ||
648 | if (argc > idx_always && strmatch(argv[idx_always]->text, "always")) { | |
649 | originate_type = DEFAULT_ORIGINATE_ALWAYS; | |
650 | idx_metric_rmap++; | |
651 | } | |
652 | ||
653 | if (argc > idx_metric_rmap) { | |
654 | if (strmatch(argv[idx_metric_rmap]->text, "metric")) | |
655 | metric = strtoul(argv[idx_metric_rmap + 1]->arg, NULL, | |
656 | 10); | |
657 | else | |
658 | routemap = argv[idx_metric_rmap + 1]->arg; | |
659 | } | |
660 | ||
661 | if (family == AF_INET6 && originate_type != DEFAULT_ORIGINATE_ALWAYS) { | |
662 | vty_out(vty, | |
663 | "Zebra doesn't implement default-originate for IPv6 yet\n"); | |
664 | vty_out(vty, | |
665 | "so use with care or use default-originate always.\n"); | |
666 | } | |
667 | ||
668 | isis_redist_set(area, level, family, DEFAULT_ROUTE, metric, routemap, | |
669 | originate_type); | |
670 | return 0; | |
f3ccedaa CF |
671 | } |
672 | ||
49d41a26 DS |
673 | DEFUN (no_isis_default_originate, |
674 | no_isis_default_originate_cmd, | |
8b104c10 EDP |
675 | "no default-information originate <ipv4|ipv6>", |
676 | NO_STR | |
49d41a26 DS |
677 | "Control distribution of default information\n" |
678 | "Distribute a default route\n" | |
679 | "Distribute default route for IPv4\n" | |
8b104c10 | 680 | "Distribute default route for IPv6\n") |
f3ccedaa | 681 | { |
d62a17ae | 682 | int idx_afi = 3; |
d62a17ae | 683 | VTY_DECLVAR_CONTEXT(isis_area, area); |
684 | int family; | |
685 | int level; | |
686 | ||
687 | family = str2family(argv[idx_afi]->text); | |
688 | if (family < 0) | |
689 | return CMD_WARNING_CONFIG_FAILED; | |
690 | ||
8b104c10 | 691 | level = 2; |
d62a17ae | 692 | |
693 | isis_redist_unset(area, level, family, DEFAULT_ROUTE); | |
694 | return 0; | |
f3ccedaa | 695 | } |
8b104c10 | 696 | #endif /* ifdef FABRICD */ |
f3ccedaa | 697 | |
d62a17ae | 698 | int isis_redist_config_write(struct vty *vty, struct isis_area *area, |
699 | int family) | |
f3ccedaa | 700 | { |
d62a17ae | 701 | int type; |
702 | int level; | |
703 | int write = 0; | |
704 | struct isis_redist *redist; | |
705 | const char *family_str; | |
706 | ||
707 | if (family == AF_INET) | |
708 | family_str = "ipv4"; | |
709 | else if (family == AF_INET6) | |
710 | family_str = "ipv6"; | |
711 | else | |
712 | return 0; | |
713 | ||
714 | for (type = 0; type < ZEBRA_ROUTE_MAX; type++) { | |
7c0cbd0e | 715 | if (type == PROTO_TYPE) |
d62a17ae | 716 | continue; |
717 | ||
718 | for (level = 1; level <= ISIS_LEVELS; level++) { | |
719 | redist = get_redist_settings(area, family, type, level); | |
720 | if (!redist->redist) | |
721 | continue; | |
ef020087 CF |
722 | vty_out(vty, " redistribute %s %s", family_str, |
723 | zebra_route_string(type)); | |
724 | if (!fabricd) | |
725 | vty_out(vty, " level-%d", level); | |
8cfc8c5c | 726 | if (redist->metric) |
d62a17ae | 727 | vty_out(vty, " metric %u", redist->metric); |
728 | if (redist->map_name) | |
729 | vty_out(vty, " route-map %s", redist->map_name); | |
730 | vty_out(vty, "\n"); | |
731 | write++; | |
732 | } | |
733 | } | |
734 | ||
735 | for (level = 1; level <= ISIS_LEVELS; level++) { | |
736 | redist = | |
737 | get_redist_settings(area, family, DEFAULT_ROUTE, level); | |
738 | if (!redist->redist) | |
739 | continue; | |
ef020087 CF |
740 | vty_out(vty, " default-information originate %s", |
741 | family_str); | |
742 | if (!fabricd) | |
743 | vty_out(vty, " level-%d", level); | |
d62a17ae | 744 | if (redist->redist == DEFAULT_ORIGINATE_ALWAYS) |
745 | vty_out(vty, " always"); | |
8cfc8c5c | 746 | if (redist->metric) |
d62a17ae | 747 | vty_out(vty, " metric %u", redist->metric); |
748 | if (redist->map_name) | |
749 | vty_out(vty, " route-map %s", redist->map_name); | |
750 | vty_out(vty, "\n"); | |
751 | write++; | |
752 | } | |
753 | ||
754 | return write; | |
f3ccedaa CF |
755 | } |
756 | ||
d62a17ae | 757 | void isis_redist_init(void) |
f3ccedaa | 758 | { |
a041ac8e | 759 | #ifdef FABRICD |
7c0cbd0e CF |
760 | install_element(ROUTER_NODE, &isis_redistribute_cmd); |
761 | install_element(ROUTER_NODE, &no_isis_redistribute_cmd); | |
a041ac8e | 762 | |
7c0cbd0e CF |
763 | install_element(ROUTER_NODE, &isis_default_originate_cmd); |
764 | install_element(ROUTER_NODE, &no_isis_default_originate_cmd); | |
8b104c10 | 765 | #endif /* ifdef FABRICD */ |
f3ccedaa | 766 | } |