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718e3744 | 1 | /* Redistribution Handler |
2 | * Copyright (C) 1998 Kunihiro Ishiguro | |
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 "vector.h" | |
24 | #include "vty.h" | |
25 | #include "command.h" | |
26 | #include "prefix.h" | |
27 | #include "table.h" | |
28 | #include "stream.h" | |
29 | #include "zclient.h" | |
30 | #include "linklist.h" | |
31 | #include "log.h" | |
b72ede27 | 32 | #include "vrf.h" |
05737783 | 33 | #include "srcdest_table.h" |
718e3744 | 34 | |
35 | #include "zebra/rib.h" | |
161e9ab7 | 36 | #include "zebra/zebra_router.h" |
7c551956 DS |
37 | #include "zebra/zebra_ns.h" |
38 | #include "zebra/zebra_vrf.h" | |
8902474b | 39 | #include "zebra/zebra_routemap.h" |
718e3744 | 40 | #include "zebra/redistribute.h" |
41 | #include "zebra/debug.h" | |
18a6dce6 | 42 | #include "zebra/router-id.h" |
bf094f69 | 43 | #include "zebra/zapi_msg.h" |
1a98c087 | 44 | #include "zebra/zebra_vxlan.h" |
364fed6b | 45 | #include "zebra/zebra_errors.h" |
718e3744 | 46 | |
244c1cdc DS |
47 | #define ZEBRA_PTM_SUPPORT |
48 | ||
7a4bb9c5 DS |
49 | /* array holding redistribute info about table redistribution */ |
50 | /* bit AFI is set if that AFI is redistributing routes from this table */ | |
032bfaaf | 51 | static int zebra_import_table_used[AFI_MAX][ZEBRA_KERNEL_TABLE_MAX]; |
d7c0a89a | 52 | static uint32_t zebra_import_table_distance[AFI_MAX][ZEBRA_KERNEL_TABLE_MAX]; |
7a4bb9c5 | 53 | |
fe257ae7 | 54 | int is_zebra_import_table_enabled(afi_t afi, vrf_id_t vrf_id, uint32_t table_id) |
7a4bb9c5 | 55 | { |
1e9f448f DS |
56 | /* |
57 | * Make sure that what we are called with actualy makes sense | |
58 | */ | |
59 | if (afi == AFI_MAX) | |
60 | return 0; | |
61 | ||
95a29032 DS |
62 | if (is_zebra_valid_kernel_table(table_id) && |
63 | table_id < ZEBRA_KERNEL_TABLE_MAX) | |
d62a17ae | 64 | return zebra_import_table_used[afi][table_id]; |
65 | return 0; | |
7a4bb9c5 DS |
66 | } |
67 | ||
d62a17ae | 68 | static void zebra_redistribute_default(struct zserv *client, vrf_id_t vrf_id) |
718e3744 | 69 | { |
d62a17ae | 70 | int afi; |
71 | struct prefix p; | |
72 | struct route_table *table; | |
73 | struct route_node *rn; | |
74 | struct route_entry *newre; | |
75 | ||
76 | for (afi = AFI_IP; afi <= AFI_IP6; afi++) { | |
29a35332 DS |
77 | |
78 | if (!vrf_bitmap_check(client->redist_default[afi], vrf_id)) | |
79 | continue; | |
80 | ||
d62a17ae | 81 | /* Lookup table. */ |
82 | table = zebra_vrf_table(afi, SAFI_UNICAST, vrf_id); | |
83 | if (!table) | |
84 | continue; | |
85 | ||
86 | /* Lookup default route. */ | |
87 | memset(&p, 0, sizeof(p)); | |
88 | p.family = afi2family(afi); | |
89 | rn = route_node_lookup(table, &p); | |
90 | if (!rn) | |
91 | continue; | |
92 | ||
a2addae8 | 93 | RNODE_FOREACH_RE (rn, newre) { |
c3d0d6e8 | 94 | if (CHECK_FLAG(newre->flags, ZEBRA_FLAG_SELECTED)) |
407c87a6 | 95 | zsend_redistribute_route( |
a2addae8 RW |
96 | ZEBRA_REDISTRIBUTE_ROUTE_ADD, client, |
97 | &rn->p, NULL, newre); | |
407c87a6 | 98 | } |
d62a17ae | 99 | |
100 | route_unlock_node(rn); | |
101 | } | |
718e3744 | 102 | } |
103 | ||
104 | /* Redistribute routes. */ | |
d7c0a89a QY |
105 | static void zebra_redistribute(struct zserv *client, int type, |
106 | unsigned short instance, vrf_id_t vrf_id, | |
107 | int afi) | |
718e3744 | 108 | { |
d62a17ae | 109 | struct route_entry *newre; |
110 | struct route_table *table; | |
111 | struct route_node *rn; | |
112 | ||
113 | table = zebra_vrf_table(afi, SAFI_UNICAST, vrf_id); | |
114 | if (!table) | |
115 | return; | |
116 | ||
f0c4b8e1 | 117 | for (rn = route_top(table); rn; rn = srcdest_route_next(rn)) |
a2addae8 | 118 | RNODE_FOREACH_RE (rn, newre) { |
86391e56 | 119 | const struct prefix *dst_p, *src_p; |
3e178809 | 120 | |
d62a17ae | 121 | srcdest_rnode_prefixes(rn, &dst_p, &src_p); |
122 | ||
14a4d9d0 | 123 | if (IS_ZEBRA_DEBUG_RIB) |
d62a17ae | 124 | zlog_debug( |
2dbe669b | 125 | "%s: client %s %pFX(%u) checking: selected=%d, type=%d, distance=%d, metric=%d zebra_check_addr=%d", |
d62a17ae | 126 | __func__, |
1b6e575b | 127 | zebra_route_string(client->proto), |
2dbe669b DA |
128 | dst_p, vrf_id, |
129 | CHECK_FLAG(newre->flags, | |
130 | ZEBRA_FLAG_SELECTED), | |
d62a17ae | 131 | newre->type, newre->distance, |
3e178809 | 132 | newre->metric, zebra_check_addr(dst_p)); |
d62a17ae | 133 | |
134 | if (!CHECK_FLAG(newre->flags, ZEBRA_FLAG_SELECTED)) | |
135 | continue; | |
136 | if ((type != ZEBRA_ROUTE_ALL | |
137 | && (newre->type != type | |
138 | || newre->instance != instance))) | |
139 | continue; | |
d62a17ae | 140 | if (!zebra_check_addr(dst_p)) |
141 | continue; | |
142 | ||
74489921 RW |
143 | zsend_redistribute_route(ZEBRA_REDISTRIBUTE_ROUTE_ADD, |
144 | client, dst_p, src_p, newre); | |
d62a17ae | 145 | } |
718e3744 | 146 | } |
147 | ||
14fe366e S |
148 | /* |
149 | * Function to check if prefix is candidate for | |
150 | * redistribute. | |
151 | */ | |
152 | static bool zebra_redistribute_check(const struct route_entry *re, | |
153 | struct zserv *client, | |
154 | const struct prefix *p, int afi) | |
155 | { | |
156 | /* Process only if there is valid re */ | |
157 | if (!re) | |
158 | return false; | |
159 | ||
160 | /* If default route and redistributed */ | |
161 | if (is_default_prefix(p) | |
162 | && vrf_bitmap_check(client->redist_default[afi], re->vrf_id)) | |
163 | return true; | |
164 | ||
165 | /* If redistribute in enabled for zebra route all */ | |
166 | if (vrf_bitmap_check(client->redist[afi][ZEBRA_ROUTE_ALL], re->vrf_id)) | |
167 | return true; | |
168 | ||
169 | /* | |
170 | * If multi-instance then check for route | |
171 | * redistribution for given instance. | |
172 | */ | |
173 | if (re->instance | |
174 | && redist_check_instance(&client->mi_redist[afi][re->type], | |
175 | re->instance)) | |
176 | return true; | |
177 | ||
178 | /* If redistribution is enabled for give route type. */ | |
179 | if (vrf_bitmap_check(client->redist[afi][re->type], re->vrf_id)) | |
180 | return true; | |
181 | ||
182 | return false; | |
183 | } | |
184 | ||
c41fc67b | 185 | /* Either advertise a route for redistribution to registered clients or */ |
186 | /* withdraw redistribution if add cannot be done for client */ | |
86391e56 | 187 | void redistribute_update(const struct prefix *p, const struct prefix *src_p, |
40f321c0 MS |
188 | const struct route_entry *re, |
189 | const struct route_entry *prev_re) | |
718e3744 | 190 | { |
d62a17ae | 191 | struct listnode *node, *nnode; |
192 | struct zserv *client; | |
d62a17ae | 193 | int afi; |
d62a17ae | 194 | |
2dbe669b | 195 | if (IS_ZEBRA_DEBUG_RIB) |
d62a17ae | 196 | zlog_debug( |
2dbe669b DA |
197 | "(%u:%u):%pFX: Redist update re %p (%s), old %p (%s)", |
198 | re->vrf_id, re->table, p, re, | |
199 | zebra_route_string(re->type), prev_re, | |
2da33d6b | 200 | prev_re ? zebra_route_string(prev_re->type) : "None"); |
d62a17ae | 201 | |
202 | afi = family2afi(p->family); | |
203 | if (!afi) { | |
e914ccbe | 204 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, |
1d5453d6 | 205 | "%s: Unknown AFI/SAFI prefix received", __func__); |
d62a17ae | 206 | return; |
c41fc67b | 207 | } |
79becec8 | 208 | if (!zebra_check_addr(p)) { |
209 | if (IS_ZEBRA_DEBUG_RIB) | |
2dbe669b | 210 | zlog_debug("Redist update filter prefix %pFX", p); |
79becec8 | 211 | return; |
212 | } | |
213 | ||
d62a17ae | 214 | |
161e9ab7 | 215 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
14fe366e | 216 | if (zebra_redistribute_check(re, client, p, afi)) { |
14a4d9d0 | 217 | if (IS_ZEBRA_DEBUG_RIB) { |
3e178809 | 218 | zlog_debug( |
2dbe669b | 219 | "%s: client %s %pFX(%u:%u), type=%d, distance=%d, metric=%d", |
c2c02b76 | 220 | __func__, |
2dbe669b | 221 | zebra_route_string(client->proto), p, |
c2c02b76 DS |
222 | re->vrf_id, re->table, re->type, |
223 | re->distance, re->metric); | |
3e178809 | 224 | } |
74489921 RW |
225 | zsend_redistribute_route(ZEBRA_REDISTRIBUTE_ROUTE_ADD, |
226 | client, p, src_p, re); | |
14fe366e | 227 | } else if (zebra_redistribute_check(prev_re, client, p, afi)) |
74489921 RW |
228 | zsend_redistribute_route(ZEBRA_REDISTRIBUTE_ROUTE_DEL, |
229 | client, p, src_p, prev_re); | |
c41fc67b | 230 | } |
718e3744 | 231 | } |
232 | ||
40f321c0 MS |
233 | /* |
234 | * During a route delete, where 'new_re' is NULL, redist a delete to all | |
235 | * clients registered for the type of 'old_re'. | |
236 | * During a route update, redist a delete to any clients who will not see | |
237 | * an update when the new route is installed. There are cases when a client | |
238 | * may have seen a redist for 'old_re', but will not see | |
239 | * the redist for 'new_re'. | |
240 | */ | |
86391e56 | 241 | void redistribute_delete(const struct prefix *p, const struct prefix *src_p, |
40f321c0 MS |
242 | const struct route_entry *old_re, |
243 | const struct route_entry *new_re) | |
718e3744 | 244 | { |
d62a17ae | 245 | struct listnode *node, *nnode; |
246 | struct zserv *client; | |
d62a17ae | 247 | int afi; |
40f321c0 MS |
248 | vrf_id_t vrfid; |
249 | ||
250 | if (old_re) | |
251 | vrfid = old_re->vrf_id; | |
252 | else if (new_re) | |
253 | vrfid = new_re->vrf_id; | |
254 | else | |
255 | return; | |
d62a17ae | 256 | |
257 | if (IS_ZEBRA_DEBUG_RIB) { | |
2dbe669b DA |
258 | zlog_debug("%u:%pFX: Redist del: re %p (%s), new re %p (%s)", |
259 | vrfid, p, old_re, | |
260 | old_re ? zebra_route_string(old_re->type) : "None", | |
261 | new_re, | |
262 | new_re ? zebra_route_string(new_re->type) : "None"); | |
d62a17ae | 263 | } |
264 | ||
d62a17ae | 265 | afi = family2afi(p->family); |
266 | if (!afi) { | |
e914ccbe | 267 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, |
1d5453d6 | 268 | "%s: Unknown AFI/SAFI prefix received", |
40f321c0 | 269 | __func__); |
d62a17ae | 270 | return; |
271 | } | |
272 | ||
40f321c0 | 273 | /* Skip invalid (e.g. linklocal) prefix */ |
79becec8 | 274 | if (!zebra_check_addr(p)) { |
40f321c0 MS |
275 | if (IS_ZEBRA_DEBUG_RIB) { |
276 | zlog_debug( | |
2dbe669b DA |
277 | "%u:%pFX: Redist del old: skipping invalid prefix", |
278 | vrfid, p); | |
40f321c0 | 279 | } |
79becec8 | 280 | return; |
281 | } | |
282 | ||
161e9ab7 | 283 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
284 | /* Do not send unsolicited messages to synchronous clients. */ |
285 | if (client->synchronous) | |
286 | continue; | |
14fe366e S |
287 | /* |
288 | * Skip this client if it will receive an update for the | |
289 | * 'new' re | |
290 | */ | |
291 | if (zebra_redistribute_check(new_re, client, p, afi)) | |
292 | continue; | |
40f321c0 MS |
293 | |
294 | /* Send a delete for the 'old' re to any subscribed client. */ | |
14fe366e | 295 | if (zebra_redistribute_check(old_re, client, p, afi)) |
74489921 | 296 | zsend_redistribute_route(ZEBRA_REDISTRIBUTE_ROUTE_DEL, |
40f321c0 | 297 | client, p, src_p, old_re); |
1eb8ef25 | 298 | } |
718e3744 | 299 | } |
300 | ||
14fe366e | 301 | |
89f4e507 | 302 | void zebra_redistribute_add(ZAPI_HANDLER_ARGS) |
718e3744 | 303 | { |
ec93aa12 DS |
304 | afi_t afi = 0; |
305 | int type = 0; | |
d7c0a89a | 306 | unsigned short instance; |
d62a17ae | 307 | |
1002497a QY |
308 | STREAM_GETC(msg, afi); |
309 | STREAM_GETC(msg, type); | |
310 | STREAM_GETW(msg, instance); | |
d62a17ae | 311 | |
1b6e575b PZ |
312 | if (IS_ZEBRA_DEBUG_EVENT) |
313 | zlog_debug( | |
c479e756 | 314 | "%s: client proto %s afi=%d, wants %s, vrf %s(%u), instance=%d", |
1b6e575b | 315 | __func__, zebra_route_string(client->proto), afi, |
c479e756 DS |
316 | zebra_route_string(type), VRF_LOGNAME(zvrf->vrf), |
317 | zvrf_id(zvrf), instance); | |
1b6e575b | 318 | |
e1fa928d | 319 | if (afi == 0 || afi >= AFI_MAX) { |
e914ccbe | 320 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, |
15569c58 | 321 | "%s: Specified afi %d does not exist", __func__, afi); |
d62a17ae | 322 | return; |
ec93aa12 DS |
323 | } |
324 | ||
325 | if (type == 0 || type >= ZEBRA_ROUTE_MAX) { | |
9df414fe | 326 | zlog_debug("%s: Specified Route Type %d does not exist", |
15569c58 | 327 | __func__, type); |
ec93aa12 DS |
328 | return; |
329 | } | |
d62a17ae | 330 | |
331 | if (instance) { | |
332 | if (!redist_check_instance(&client->mi_redist[afi][type], | |
333 | instance)) { | |
334 | redist_add_instance(&client->mi_redist[afi][type], | |
335 | instance); | |
336 | zebra_redistribute(client, type, instance, | |
337 | zvrf_id(zvrf), afi); | |
338 | } | |
339 | } else { | |
d9083050 IR |
340 | if (!vrf_bitmap_check(client->redist[afi][type], |
341 | zvrf_id(zvrf))) { | |
342 | if (IS_ZEBRA_DEBUG_EVENT) | |
343 | zlog_debug( | |
344 | "%s: setting vrf %s(%u) redist bitmap", | |
345 | __func__, VRF_LOGNAME(zvrf->vrf), | |
346 | zvrf_id(zvrf)); | |
347 | vrf_bitmap_set(client->redist[afi][type], | |
348 | zvrf_id(zvrf)); | |
349 | zebra_redistribute(client, type, 0, zvrf_id(zvrf), afi); | |
350 | } | |
4e1cadf0 | 351 | } |
ec93aa12 DS |
352 | |
353 | stream_failure: | |
354 | return; | |
ebf08631 | 355 | } |
718e3744 | 356 | |
89f4e507 | 357 | void zebra_redistribute_delete(ZAPI_HANDLER_ARGS) |
718e3744 | 358 | { |
ec93aa12 DS |
359 | afi_t afi = 0; |
360 | int type = 0; | |
d7c0a89a | 361 | unsigned short instance; |
d62a17ae | 362 | |
1002497a QY |
363 | STREAM_GETC(msg, afi); |
364 | STREAM_GETC(msg, type); | |
365 | STREAM_GETW(msg, instance); | |
d62a17ae | 366 | |
67da9573 EDP |
367 | if (IS_ZEBRA_DEBUG_EVENT) |
368 | zlog_debug( | |
369 | "%s: client proto %s afi=%d, no longer wants %s, vrf %s(%u), instance=%d", | |
370 | __func__, zebra_route_string(client->proto), afi, | |
371 | zebra_route_string(type), VRF_LOGNAME(zvrf->vrf), | |
372 | zvrf_id(zvrf), instance); | |
373 | ||
374 | ||
e1fa928d | 375 | if (afi == 0 || afi >= AFI_MAX) { |
e914ccbe | 376 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, |
15569c58 | 377 | "%s: Specified afi %d does not exist", __func__, afi); |
d62a17ae | 378 | return; |
ec93aa12 DS |
379 | } |
380 | ||
381 | if (type == 0 || type >= ZEBRA_ROUTE_MAX) { | |
9df414fe | 382 | zlog_debug("%s: Specified Route Type %d does not exist", |
15569c58 | 383 | __func__, type); |
ec93aa12 DS |
384 | return; |
385 | } | |
d62a17ae | 386 | |
387 | /* | |
388 | * NOTE: no need to withdraw the previously advertised routes. The | |
389 | * clients | |
390 | * themselves should keep track of the received routes from zebra and | |
391 | * withdraw them when necessary. | |
392 | */ | |
393 | if (instance) | |
394 | redist_del_instance(&client->mi_redist[afi][type], instance); | |
395 | else | |
396 | vrf_bitmap_unset(client->redist[afi][type], zvrf_id(zvrf)); | |
ec93aa12 DS |
397 | |
398 | stream_failure: | |
399 | return; | |
ebf08631 | 400 | } |
718e3744 | 401 | |
89f4e507 | 402 | void zebra_redistribute_default_add(ZAPI_HANDLER_ARGS) |
718e3744 | 403 | { |
49db7a7b RW |
404 | afi_t afi = 0; |
405 | ||
406 | STREAM_GETC(msg, afi); | |
407 | ||
408 | if (afi == 0 || afi >= AFI_MAX) { | |
409 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, | |
15569c58 | 410 | "%s: Specified afi %u does not exist", __func__, afi); |
49db7a7b RW |
411 | return; |
412 | } | |
413 | ||
414 | vrf_bitmap_set(client->redist_default[afi], zvrf_id(zvrf)); | |
d62a17ae | 415 | zebra_redistribute_default(client, zvrf_id(zvrf)); |
49db7a7b RW |
416 | |
417 | stream_failure: | |
418 | return; | |
d62a17ae | 419 | } |
718e3744 | 420 | |
89f4e507 | 421 | void zebra_redistribute_default_delete(ZAPI_HANDLER_ARGS) |
718e3744 | 422 | { |
49db7a7b RW |
423 | afi_t afi = 0; |
424 | ||
425 | STREAM_GETC(msg, afi); | |
426 | ||
427 | if (afi == 0 || afi >= AFI_MAX) { | |
428 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, | |
15569c58 | 429 | "%s: Specified afi %u does not exist", __func__, afi); |
49db7a7b RW |
430 | return; |
431 | } | |
432 | ||
433 | vrf_bitmap_unset(client->redist_default[afi], zvrf_id(zvrf)); | |
434 | ||
435 | stream_failure: | |
436 | return; | |
d62a17ae | 437 | } |
718e3744 | 438 | |
439 | /* Interface up information. */ | |
d62a17ae | 440 | void zebra_interface_up_update(struct interface *ifp) |
718e3744 | 441 | { |
d62a17ae | 442 | struct listnode *node, *nnode; |
443 | struct zserv *client; | |
444 | ||
445 | if (IS_ZEBRA_DEBUG_EVENT) | |
38bbad1b | 446 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_UP %s(%u)", |
a36898e7 | 447 | ifp->name, ifp->vrf_id); |
d62a17ae | 448 | |
449 | if (ifp->ptm_status || !ifp->ptm_enable) { | |
161e9ab7 | 450 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, |
a8a20c4e | 451 | client)) { |
17da84a4 KS |
452 | /* Do not send unsolicited messages to synchronous |
453 | * clients. | |
454 | */ | |
455 | if (client->synchronous) | |
456 | continue; | |
457 | ||
a8a20c4e DS |
458 | zsend_interface_update(ZEBRA_INTERFACE_UP, |
459 | client, ifp); | |
460 | zsend_interface_link_params(client, ifp); | |
461 | } | |
16f1b9ee | 462 | } |
718e3744 | 463 | } |
464 | ||
465 | /* Interface down information. */ | |
d62a17ae | 466 | void zebra_interface_down_update(struct interface *ifp) |
718e3744 | 467 | { |
d62a17ae | 468 | struct listnode *node, *nnode; |
469 | struct zserv *client; | |
718e3744 | 470 | |
d62a17ae | 471 | if (IS_ZEBRA_DEBUG_EVENT) |
38bbad1b | 472 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_DOWN %s(%u)", |
a36898e7 | 473 | ifp->name, ifp->vrf_id); |
718e3744 | 474 | |
161e9ab7 | 475 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
476 | /* Do not send unsolicited messages to synchronous clients. */ |
477 | if (client->synchronous) | |
478 | continue; | |
479 | ||
d62a17ae | 480 | zsend_interface_update(ZEBRA_INTERFACE_DOWN, client, ifp); |
481 | } | |
718e3744 | 482 | } |
483 | ||
484 | /* Interface information update. */ | |
d62a17ae | 485 | void zebra_interface_add_update(struct interface *ifp) |
718e3744 | 486 | { |
d62a17ae | 487 | struct listnode *node, *nnode; |
488 | struct zserv *client; | |
489 | ||
490 | if (IS_ZEBRA_DEBUG_EVENT) | |
38bbad1b | 491 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_ADD %s(%u)", ifp->name, |
a36898e7 | 492 | ifp->vrf_id); |
d62a17ae | 493 | |
a8a20c4e | 494 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
495 | /* Do not send unsolicited messages to synchronous clients. */ |
496 | if (client->synchronous) | |
497 | continue; | |
498 | ||
a8a20c4e DS |
499 | client->ifadd_cnt++; |
500 | zsend_interface_add(client, ifp); | |
501 | zsend_interface_link_params(client, ifp); | |
502 | } | |
718e3744 | 503 | } |
504 | ||
d62a17ae | 505 | void zebra_interface_delete_update(struct interface *ifp) |
718e3744 | 506 | { |
d62a17ae | 507 | struct listnode *node, *nnode; |
508 | struct zserv *client; | |
718e3744 | 509 | |
d62a17ae | 510 | if (IS_ZEBRA_DEBUG_EVENT) |
38bbad1b | 511 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_DELETE %s(%u)", |
a36898e7 | 512 | ifp->name, ifp->vrf_id); |
718e3744 | 513 | |
161e9ab7 | 514 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
515 | /* Do not send unsolicited messages to synchronous clients. */ |
516 | if (client->synchronous) | |
517 | continue; | |
518 | ||
d62a17ae | 519 | client->ifdel_cnt++; |
520 | zsend_interface_delete(client, ifp); | |
521 | } | |
718e3744 | 522 | } |
523 | ||
524 | /* Interface address addition. */ | |
d62a17ae | 525 | void zebra_interface_address_add_update(struct interface *ifp, |
526 | struct connected *ifc) | |
718e3744 | 527 | { |
d62a17ae | 528 | struct listnode *node, *nnode; |
529 | struct zserv *client; | |
530 | struct prefix *p; | |
531 | ||
532 | if (IS_ZEBRA_DEBUG_EVENT) { | |
d62a17ae | 533 | p = ifc->address; |
2dbe669b DA |
534 | zlog_debug( |
535 | "MESSAGE: ZEBRA_INTERFACE_ADDRESS_ADD %pFX on %s(%u)", | |
536 | p, ifp->name, ifp->vrf_id); | |
d62a17ae | 537 | } |
538 | ||
539 | if (!CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) | |
9df414fe | 540 | flog_warn( |
e914ccbe | 541 | EC_ZEBRA_ADVERTISING_UNUSABLE_ADDR, |
ad6f7449 | 542 | "advertising address to clients that is not yet usable."); |
d62a17ae | 543 | |
1a98c087 MK |
544 | zebra_vxlan_add_del_gw_macip(ifp, ifc->address, 1); |
545 | ||
d62a17ae | 546 | router_id_add_address(ifc); |
547 | ||
17da84a4 KS |
548 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
549 | /* Do not send unsolicited messages to synchronous clients. */ | |
550 | if (client->synchronous) | |
551 | continue; | |
552 | ||
d62a17ae | 553 | if (CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) { |
554 | client->connected_rt_add_cnt++; | |
555 | zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_ADD, | |
556 | client, ifp, ifc); | |
557 | } | |
17da84a4 | 558 | } |
718e3744 | 559 | } |
560 | ||
561 | /* Interface address deletion. */ | |
d62a17ae | 562 | void zebra_interface_address_delete_update(struct interface *ifp, |
563 | struct connected *ifc) | |
718e3744 | 564 | { |
d62a17ae | 565 | struct listnode *node, *nnode; |
566 | struct zserv *client; | |
567 | struct prefix *p; | |
568 | ||
569 | if (IS_ZEBRA_DEBUG_EVENT) { | |
d62a17ae | 570 | p = ifc->address; |
2dbe669b DA |
571 | zlog_debug( |
572 | "MESSAGE: ZEBRA_INTERFACE_ADDRESS_DELETE %pFX on %s(%u)", | |
573 | p, ifp->name, ifp->vrf_id); | |
d62a17ae | 574 | } |
575 | ||
1a98c087 MK |
576 | zebra_vxlan_add_del_gw_macip(ifp, ifc->address, 0); |
577 | ||
d62a17ae | 578 | router_id_del_address(ifc); |
579 | ||
17da84a4 KS |
580 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
581 | /* Do not send unsolicited messages to synchronous clients. */ | |
582 | if (client->synchronous) | |
583 | continue; | |
584 | ||
d62a17ae | 585 | if (CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) { |
586 | client->connected_rt_del_cnt++; | |
587 | zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_DELETE, | |
588 | client, ifp, ifc); | |
589 | } | |
17da84a4 | 590 | } |
718e3744 | 591 | } |
d5a5c8f0 | 592 | |
c8e264b6 | 593 | /* Interface VRF change. May need to delete from clients not interested in |
594 | * the new VRF. Note that this function is invoked *prior* to the VRF change. | |
595 | */ | |
d62a17ae | 596 | void zebra_interface_vrf_update_del(struct interface *ifp, vrf_id_t new_vrf_id) |
c8e264b6 | 597 | { |
d62a17ae | 598 | struct listnode *node, *nnode; |
599 | struct zserv *client; | |
600 | ||
601 | if (IS_ZEBRA_DEBUG_EVENT) | |
602 | zlog_debug( | |
603 | "MESSAGE: ZEBRA_INTERFACE_VRF_UPDATE/DEL %s VRF Id %u -> %u", | |
a36898e7 | 604 | ifp->name, ifp->vrf_id, new_vrf_id); |
d62a17ae | 605 | |
161e9ab7 | 606 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
607 | /* Do not send unsolicited messages to synchronous clients. */ |
608 | if (client->synchronous) | |
609 | continue; | |
610 | ||
d62a17ae | 611 | /* Need to delete if the client is not interested in the new |
612 | * VRF. */ | |
613 | zsend_interface_update(ZEBRA_INTERFACE_DOWN, client, ifp); | |
614 | client->ifdel_cnt++; | |
615 | zsend_interface_delete(client, ifp); | |
616 | zsend_interface_vrf_update(client, ifp, new_vrf_id); | |
617 | } | |
c8e264b6 | 618 | } |
619 | ||
620 | /* Interface VRF change. This function is invoked *post* VRF change and sends an | |
621 | * add to clients who are interested in the new VRF but not in the old VRF. | |
622 | */ | |
d62a17ae | 623 | void zebra_interface_vrf_update_add(struct interface *ifp, vrf_id_t old_vrf_id) |
c8e264b6 | 624 | { |
d62a17ae | 625 | struct listnode *node, *nnode; |
626 | struct zserv *client; | |
627 | ||
628 | if (IS_ZEBRA_DEBUG_EVENT) | |
629 | zlog_debug( | |
630 | "MESSAGE: ZEBRA_INTERFACE_VRF_UPDATE/ADD %s VRF Id %u -> %u", | |
a36898e7 | 631 | ifp->name, old_vrf_id, ifp->vrf_id); |
d62a17ae | 632 | |
161e9ab7 | 633 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
634 | /* Do not send unsolicited messages to synchronous clients. */ |
635 | if (client->synchronous) | |
636 | continue; | |
637 | ||
d62a17ae | 638 | /* Need to add if the client is interested in the new VRF. */ |
639 | client->ifadd_cnt++; | |
640 | zsend_interface_add(client, ifp); | |
641 | zsend_interface_addresses(client, ifp); | |
642 | } | |
c8e264b6 | 643 | } |
644 | ||
fe257ae7 DS |
645 | int zebra_add_import_table_entry(struct zebra_vrf *zvrf, struct route_node *rn, |
646 | struct route_entry *re, const char *rmap_name) | |
7a4bb9c5 | 647 | { |
d62a17ae | 648 | struct route_entry *newre; |
649 | struct route_entry *same; | |
650 | struct prefix p; | |
0eb97b86 | 651 | struct nexthop_group *ng; |
b68885f9 | 652 | route_map_result_t ret = RMAP_PERMITMATCH; |
f8c175f3 | 653 | afi_t afi; |
d62a17ae | 654 | |
f8c175f3 | 655 | afi = family2afi(rn->p.family); |
d62a17ae | 656 | if (rmap_name) |
657 | ret = zebra_import_table_route_map_check( | |
0eb97b86 | 658 | afi, re->type, re->instance, &rn->p, |
c415d895 | 659 | re->nhe->nhg.nexthop, |
fe257ae7 | 660 | zvrf->vrf->vrf_id, re->tag, rmap_name); |
d62a17ae | 661 | |
b68885f9 | 662 | if (ret != RMAP_PERMITMATCH) { |
85c615ac | 663 | UNSET_FLAG(re->flags, ZEBRA_FLAG_SELECTED); |
fe257ae7 | 664 | zebra_del_import_table_entry(zvrf, rn, re); |
20796bc3 DS |
665 | return 0; |
666 | } | |
d62a17ae | 667 | |
f8c175f3 | 668 | prefix_copy(&p, &rn->p); |
d62a17ae | 669 | |
a2addae8 RW |
670 | RNODE_FOREACH_RE (rn, same) { |
671 | if (CHECK_FLAG(same->status, ROUTE_ENTRY_REMOVED)) | |
f8c175f3 | 672 | continue; |
20796bc3 | 673 | |
996c9314 | 674 | if (same->type == re->type && same->instance == re->instance |
f8c175f3 DS |
675 | && same->table == re->table |
676 | && same->type != ZEBRA_ROUTE_CONNECT) | |
677 | break; | |
678 | } | |
20796bc3 | 679 | |
e71c84ca DS |
680 | if (same) { |
681 | UNSET_FLAG(same->flags, ZEBRA_FLAG_SELECTED); | |
fe257ae7 | 682 | zebra_del_import_table_entry(zvrf, rn, same); |
e71c84ca | 683 | } |
f8c175f3 | 684 | |
996c9314 | 685 | newre = XCALLOC(MTYPE_RE, sizeof(struct route_entry)); |
5c4b6e57 DS |
686 | newre->type = ZEBRA_ROUTE_TABLE; |
687 | newre->distance = zebra_import_table_distance[afi][re->table]; | |
688 | newre->flags = re->flags; | |
689 | newre->metric = re->metric; | |
690 | newre->mtu = re->mtu; | |
317c6a10 | 691 | newre->table = zvrf->table_id; |
98572489 | 692 | newre->uptime = monotime(NULL); |
5c4b6e57 | 693 | newre->instance = re->table; |
5c4b6e57 | 694 | |
0eb97b86 | 695 | ng = nexthop_group_new(); |
c415d895 | 696 | copy_nexthops(&ng->nexthop, re->nhe->nhg.nexthop, NULL); |
0eb97b86 MS |
697 | |
698 | rib_add_multipath(afi, SAFI_UNICAST, &p, NULL, newre, ng); | |
5c4b6e57 | 699 | |
d62a17ae | 700 | return 0; |
7a4bb9c5 DS |
701 | } |
702 | ||
fe257ae7 DS |
703 | int zebra_del_import_table_entry(struct zebra_vrf *zvrf, struct route_node *rn, |
704 | struct route_entry *re) | |
7a4bb9c5 | 705 | { |
d62a17ae | 706 | struct prefix p; |
f8c175f3 | 707 | afi_t afi; |
7a4bb9c5 | 708 | |
f8c175f3 DS |
709 | afi = family2afi(rn->p.family); |
710 | prefix_copy(&p, &rn->p); | |
7a4bb9c5 | 711 | |
fe257ae7 | 712 | rib_delete(afi, SAFI_UNICAST, zvrf->vrf->vrf_id, ZEBRA_ROUTE_TABLE, |
c415d895 | 713 | re->table, re->flags, &p, NULL, re->nhe->nhg.nexthop, |
0eb97b86 | 714 | re->nhe_id, zvrf->table_id, re->metric, re->distance, |
3ceae22b | 715 | false); |
7a4bb9c5 | 716 | |
d62a17ae | 717 | return 0; |
7a4bb9c5 DS |
718 | } |
719 | ||
720 | /* Assuming no one calls this with the main routing table */ | |
fe257ae7 DS |
721 | int zebra_import_table(afi_t afi, vrf_id_t vrf_id, uint32_t table_id, |
722 | uint32_t distance, const char *rmap_name, int add) | |
7a4bb9c5 | 723 | { |
d62a17ae | 724 | struct route_table *table; |
725 | struct route_entry *re; | |
726 | struct route_node *rn; | |
fe257ae7 | 727 | struct zebra_vrf *zvrf = zebra_vrf_lookup_by_id(vrf_id); |
d62a17ae | 728 | |
729 | if (!is_zebra_valid_kernel_table(table_id) | |
c447ad08 | 730 | || (table_id == RT_TABLE_MAIN)) |
95f7965d | 731 | return -1; |
d62a17ae | 732 | |
733 | if (afi >= AFI_MAX) | |
95f7965d | 734 | return -1; |
d62a17ae | 735 | |
c7c0b007 SW |
736 | table = zebra_vrf_get_table_with_table_id(afi, SAFI_UNICAST, vrf_id, |
737 | table_id); | |
d62a17ae | 738 | if (table == NULL) { |
739 | return 0; | |
740 | } else if (IS_ZEBRA_DEBUG_RIB) { | |
741 | zlog_debug("%s routes from table %d", | |
742 | add ? "Importing" : "Unimporting", table_id); | |
7a4bb9c5 DS |
743 | } |
744 | ||
d62a17ae | 745 | if (add) { |
746 | if (rmap_name) | |
747 | zebra_add_import_table_route_map(afi, rmap_name, | |
748 | table_id); | |
749 | else { | |
750 | rmap_name = | |
751 | zebra_get_import_table_route_map(afi, table_id); | |
3660beec | 752 | if (rmap_name) { |
d62a17ae | 753 | zebra_del_import_table_route_map(afi, table_id); |
3660beec DS |
754 | rmap_name = NULL; |
755 | } | |
d62a17ae | 756 | } |
7a4bb9c5 | 757 | |
d62a17ae | 758 | zebra_import_table_used[afi][table_id] = 1; |
759 | zebra_import_table_distance[afi][table_id] = distance; | |
760 | } else { | |
761 | zebra_import_table_used[afi][table_id] = 0; | |
762 | zebra_import_table_distance[afi][table_id] = | |
763 | ZEBRA_TABLE_DISTANCE_DEFAULT; | |
764 | ||
765 | rmap_name = zebra_get_import_table_route_map(afi, table_id); | |
3660beec | 766 | if (rmap_name) { |
d62a17ae | 767 | zebra_del_import_table_route_map(afi, table_id); |
3660beec DS |
768 | rmap_name = NULL; |
769 | } | |
7a4bb9c5 | 770 | } |
7a4bb9c5 | 771 | |
d62a17ae | 772 | for (rn = route_top(table); rn; rn = route_next(rn)) { |
773 | /* For each entry in the non-default routing table, | |
774 | * add the entry in the main table | |
775 | */ | |
776 | if (!rn->info) | |
777 | continue; | |
778 | ||
a2addae8 | 779 | RNODE_FOREACH_RE (rn, re) { |
d62a17ae | 780 | if (CHECK_FLAG(re->status, ROUTE_ENTRY_REMOVED)) |
781 | continue; | |
782 | break; | |
7a4bb9c5 | 783 | } |
8902474b | 784 | |
d62a17ae | 785 | if (!re) |
786 | continue; | |
8902474b | 787 | |
d62a17ae | 788 | if (((afi == AFI_IP) && (rn->p.family == AF_INET)) |
789 | || ((afi == AFI_IP6) && (rn->p.family == AF_INET6))) { | |
790 | if (add) | |
fe257ae7 DS |
791 | zebra_add_import_table_entry(zvrf, rn, re, |
792 | rmap_name); | |
d62a17ae | 793 | else |
fe257ae7 | 794 | zebra_del_import_table_entry(zvrf, rn, re); |
d62a17ae | 795 | } |
796 | } | |
797 | return 0; | |
798 | } | |
799 | ||
fe257ae7 | 800 | int zebra_import_table_config(struct vty *vty, vrf_id_t vrf_id) |
d62a17ae | 801 | { |
802 | int i; | |
803 | afi_t afi; | |
804 | int write = 0; | |
805 | char afi_str[AFI_MAX][10] = {"", "ip", "ipv6", "ethernet"}; | |
806 | const char *rmap_name; | |
807 | ||
808 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
809 | for (i = 1; i < ZEBRA_KERNEL_TABLE_MAX; i++) { | |
fe257ae7 | 810 | if (!is_zebra_import_table_enabled(afi, vrf_id, i)) |
20796bc3 | 811 | continue; |
d62a17ae | 812 | |
20796bc3 DS |
813 | if (zebra_import_table_distance[afi][i] |
814 | != ZEBRA_TABLE_DISTANCE_DEFAULT) { | |
996c9314 | 815 | vty_out(vty, "%s import-table %d distance %d", |
20796bc3 DS |
816 | afi_str[afi], i, |
817 | zebra_import_table_distance[afi][i]); | |
818 | } else { | |
996c9314 LB |
819 | vty_out(vty, "%s import-table %d", afi_str[afi], |
820 | i); | |
d62a17ae | 821 | } |
20796bc3 DS |
822 | |
823 | rmap_name = zebra_get_import_table_route_map(afi, i); | |
824 | if (rmap_name) | |
996c9314 | 825 | vty_out(vty, " route-map %s", rmap_name); |
20796bc3 DS |
826 | |
827 | vty_out(vty, "\n"); | |
828 | write = 1; | |
d62a17ae | 829 | } |
7a4bb9c5 | 830 | } |
7a4bb9c5 | 831 | |
d62a17ae | 832 | return write; |
7a4bb9c5 | 833 | } |
8902474b | 834 | |
fe257ae7 DS |
835 | static void zebra_import_table_rm_update_vrf_afi(struct zebra_vrf *zvrf, |
836 | afi_t afi, int table_id, | |
837 | const char *rmap) | |
8902474b | 838 | { |
d62a17ae | 839 | struct route_table *table; |
840 | struct route_entry *re; | |
841 | struct route_node *rn; | |
842 | const char *rmap_name; | |
843 | ||
fe257ae7 DS |
844 | rmap_name = zebra_get_import_table_route_map(afi, table_id); |
845 | if ((!rmap_name) || (strcmp(rmap_name, rmap) != 0)) | |
846 | return; | |
d62a17ae | 847 | |
c7c0b007 SW |
848 | table = zebra_vrf_get_table_with_table_id(afi, SAFI_UNICAST, |
849 | zvrf->vrf->vrf_id, table_id); | |
fe257ae7 DS |
850 | if (!table) { |
851 | if (IS_ZEBRA_DEBUG_RIB_DETAILED) | |
852 | zlog_debug("%s: Table id=%d not found", __func__, | |
853 | table_id); | |
854 | return; | |
855 | } | |
856 | ||
857 | for (rn = route_top(table); rn; rn = route_next(rn)) { | |
858 | /* | |
859 | * For each entry in the non-default routing table, | |
860 | * add the entry in the main table | |
861 | */ | |
862 | if (!rn->info) | |
863 | continue; | |
864 | ||
865 | RNODE_FOREACH_RE (rn, re) { | |
866 | if (CHECK_FLAG(re->status, ROUTE_ENTRY_REMOVED)) | |
d5b8c216 | 867 | continue; |
fe257ae7 DS |
868 | break; |
869 | } | |
870 | ||
871 | if (!re) | |
872 | continue; | |
873 | ||
874 | if (((afi == AFI_IP) && (rn->p.family == AF_INET)) | |
875 | || ((afi == AFI_IP6) && (rn->p.family == AF_INET6))) | |
876 | zebra_add_import_table_entry(zvrf, rn, re, rmap_name); | |
877 | } | |
878 | ||
879 | return; | |
880 | } | |
881 | ||
882 | static void zebra_import_table_rm_update_vrf(struct zebra_vrf *zvrf, | |
883 | const char *rmap) | |
884 | { | |
885 | afi_t afi; | |
886 | int i; | |
887 | ||
888 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
889 | for (i = 1; i < ZEBRA_KERNEL_TABLE_MAX; i++) { | |
890 | if (!is_zebra_import_table_enabled( | |
891 | afi, zvrf->vrf->vrf_id, i)) | |
2c7ef20d | 892 | continue; |
2c7ef20d | 893 | |
fe257ae7 DS |
894 | zebra_import_table_rm_update_vrf_afi(zvrf, afi, i, |
895 | rmap); | |
d62a17ae | 896 | } |
8902474b | 897 | } |
fe257ae7 | 898 | } |
8902474b | 899 | |
fe257ae7 DS |
900 | void zebra_import_table_rm_update(const char *rmap) |
901 | { | |
902 | struct vrf *vrf; | |
903 | struct zebra_vrf *zvrf; | |
904 | ||
905 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) { | |
906 | zvrf = vrf->info; | |
907 | ||
908 | if (!zvrf) | |
909 | continue; | |
910 | ||
911 | zebra_import_table_rm_update_vrf(zvrf, rmap); | |
912 | } | |
8902474b | 913 | } |
16f1b9ee OD |
914 | |
915 | /* Interface parameters update */ | |
d62a17ae | 916 | void zebra_interface_parameters_update(struct interface *ifp) |
16f1b9ee | 917 | { |
d62a17ae | 918 | struct listnode *node, *nnode; |
919 | struct zserv *client; | |
16f1b9ee | 920 | |
d62a17ae | 921 | if (IS_ZEBRA_DEBUG_EVENT) |
38bbad1b | 922 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_LINK_PARAMS %s(%u)", |
a36898e7 | 923 | ifp->name, ifp->vrf_id); |
16f1b9ee | 924 | |
17da84a4 KS |
925 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
926 | /* Do not send unsolicited messages to synchronous clients. */ | |
927 | if (client->synchronous) | |
928 | continue; | |
929 | ||
a8a20c4e | 930 | zsend_interface_link_params(client, ifp); |
17da84a4 | 931 | } |
16f1b9ee | 932 | } |