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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 { | |
6b2433c6 AR |
340 | if (IS_ZEBRA_DEBUG_EVENT) |
341 | zlog_debug("%s: setting vrf %s(%u) redist bitmap", | |
342 | __func__, VRF_LOGNAME(zvrf->vrf), | |
343 | zvrf_id(zvrf)); | |
344 | vrf_bitmap_set(client->redist[afi][type], zvrf_id(zvrf)); | |
345 | zebra_redistribute(client, type, 0, zvrf_id(zvrf), afi); | |
4e1cadf0 | 346 | } |
ec93aa12 DS |
347 | |
348 | stream_failure: | |
349 | return; | |
ebf08631 | 350 | } |
718e3744 | 351 | |
89f4e507 | 352 | void zebra_redistribute_delete(ZAPI_HANDLER_ARGS) |
718e3744 | 353 | { |
ec93aa12 DS |
354 | afi_t afi = 0; |
355 | int type = 0; | |
d7c0a89a | 356 | unsigned short instance; |
d62a17ae | 357 | |
1002497a QY |
358 | STREAM_GETC(msg, afi); |
359 | STREAM_GETC(msg, type); | |
360 | STREAM_GETW(msg, instance); | |
d62a17ae | 361 | |
67da9573 EDP |
362 | if (IS_ZEBRA_DEBUG_EVENT) |
363 | zlog_debug( | |
364 | "%s: client proto %s afi=%d, no longer wants %s, vrf %s(%u), instance=%d", | |
365 | __func__, zebra_route_string(client->proto), afi, | |
366 | zebra_route_string(type), VRF_LOGNAME(zvrf->vrf), | |
367 | zvrf_id(zvrf), instance); | |
368 | ||
369 | ||
e1fa928d | 370 | if (afi == 0 || afi >= AFI_MAX) { |
e914ccbe | 371 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, |
15569c58 | 372 | "%s: Specified afi %d does not exist", __func__, afi); |
d62a17ae | 373 | return; |
ec93aa12 DS |
374 | } |
375 | ||
376 | if (type == 0 || type >= ZEBRA_ROUTE_MAX) { | |
9df414fe | 377 | zlog_debug("%s: Specified Route Type %d does not exist", |
15569c58 | 378 | __func__, type); |
ec93aa12 DS |
379 | return; |
380 | } | |
d62a17ae | 381 | |
382 | /* | |
383 | * NOTE: no need to withdraw the previously advertised routes. The | |
384 | * clients | |
385 | * themselves should keep track of the received routes from zebra and | |
386 | * withdraw them when necessary. | |
387 | */ | |
388 | if (instance) | |
389 | redist_del_instance(&client->mi_redist[afi][type], instance); | |
390 | else | |
391 | vrf_bitmap_unset(client->redist[afi][type], zvrf_id(zvrf)); | |
ec93aa12 DS |
392 | |
393 | stream_failure: | |
394 | return; | |
ebf08631 | 395 | } |
718e3744 | 396 | |
89f4e507 | 397 | void zebra_redistribute_default_add(ZAPI_HANDLER_ARGS) |
718e3744 | 398 | { |
49db7a7b RW |
399 | afi_t afi = 0; |
400 | ||
401 | STREAM_GETC(msg, afi); | |
402 | ||
403 | if (afi == 0 || afi >= AFI_MAX) { | |
404 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, | |
15569c58 | 405 | "%s: Specified afi %u does not exist", __func__, afi); |
49db7a7b RW |
406 | return; |
407 | } | |
408 | ||
409 | vrf_bitmap_set(client->redist_default[afi], zvrf_id(zvrf)); | |
d62a17ae | 410 | zebra_redistribute_default(client, zvrf_id(zvrf)); |
49db7a7b RW |
411 | |
412 | stream_failure: | |
413 | return; | |
d62a17ae | 414 | } |
718e3744 | 415 | |
89f4e507 | 416 | void zebra_redistribute_default_delete(ZAPI_HANDLER_ARGS) |
718e3744 | 417 | { |
49db7a7b RW |
418 | afi_t afi = 0; |
419 | ||
420 | STREAM_GETC(msg, afi); | |
421 | ||
422 | if (afi == 0 || afi >= AFI_MAX) { | |
423 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, | |
15569c58 | 424 | "%s: Specified afi %u does not exist", __func__, afi); |
49db7a7b RW |
425 | return; |
426 | } | |
427 | ||
428 | vrf_bitmap_unset(client->redist_default[afi], zvrf_id(zvrf)); | |
429 | ||
430 | stream_failure: | |
431 | return; | |
d62a17ae | 432 | } |
718e3744 | 433 | |
434 | /* Interface up information. */ | |
d62a17ae | 435 | void zebra_interface_up_update(struct interface *ifp) |
718e3744 | 436 | { |
d62a17ae | 437 | struct listnode *node, *nnode; |
438 | struct zserv *client; | |
439 | ||
440 | if (IS_ZEBRA_DEBUG_EVENT) | |
38bbad1b | 441 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_UP %s(%u)", |
a36898e7 | 442 | ifp->name, ifp->vrf_id); |
d62a17ae | 443 | |
444 | if (ifp->ptm_status || !ifp->ptm_enable) { | |
161e9ab7 | 445 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, |
a8a20c4e | 446 | client)) { |
17da84a4 KS |
447 | /* Do not send unsolicited messages to synchronous |
448 | * clients. | |
449 | */ | |
450 | if (client->synchronous) | |
451 | continue; | |
452 | ||
a8a20c4e DS |
453 | zsend_interface_update(ZEBRA_INTERFACE_UP, |
454 | client, ifp); | |
455 | zsend_interface_link_params(client, ifp); | |
456 | } | |
16f1b9ee | 457 | } |
718e3744 | 458 | } |
459 | ||
460 | /* Interface down information. */ | |
d62a17ae | 461 | void zebra_interface_down_update(struct interface *ifp) |
718e3744 | 462 | { |
d62a17ae | 463 | struct listnode *node, *nnode; |
464 | struct zserv *client; | |
718e3744 | 465 | |
d62a17ae | 466 | if (IS_ZEBRA_DEBUG_EVENT) |
38bbad1b | 467 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_DOWN %s(%u)", |
a36898e7 | 468 | ifp->name, ifp->vrf_id); |
718e3744 | 469 | |
161e9ab7 | 470 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
471 | /* Do not send unsolicited messages to synchronous clients. */ |
472 | if (client->synchronous) | |
473 | continue; | |
474 | ||
d62a17ae | 475 | zsend_interface_update(ZEBRA_INTERFACE_DOWN, client, ifp); |
476 | } | |
718e3744 | 477 | } |
478 | ||
479 | /* Interface information update. */ | |
d62a17ae | 480 | void zebra_interface_add_update(struct interface *ifp) |
718e3744 | 481 | { |
d62a17ae | 482 | struct listnode *node, *nnode; |
483 | struct zserv *client; | |
484 | ||
485 | if (IS_ZEBRA_DEBUG_EVENT) | |
38bbad1b | 486 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_ADD %s(%u)", ifp->name, |
a36898e7 | 487 | ifp->vrf_id); |
d62a17ae | 488 | |
a8a20c4e | 489 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
490 | /* Do not send unsolicited messages to synchronous clients. */ |
491 | if (client->synchronous) | |
492 | continue; | |
493 | ||
a8a20c4e DS |
494 | client->ifadd_cnt++; |
495 | zsend_interface_add(client, ifp); | |
496 | zsend_interface_link_params(client, ifp); | |
497 | } | |
718e3744 | 498 | } |
499 | ||
d62a17ae | 500 | void zebra_interface_delete_update(struct interface *ifp) |
718e3744 | 501 | { |
d62a17ae | 502 | struct listnode *node, *nnode; |
503 | struct zserv *client; | |
718e3744 | 504 | |
d62a17ae | 505 | if (IS_ZEBRA_DEBUG_EVENT) |
38bbad1b | 506 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_DELETE %s(%u)", |
a36898e7 | 507 | ifp->name, ifp->vrf_id); |
718e3744 | 508 | |
161e9ab7 | 509 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
510 | /* Do not send unsolicited messages to synchronous clients. */ |
511 | if (client->synchronous) | |
512 | continue; | |
513 | ||
d62a17ae | 514 | client->ifdel_cnt++; |
515 | zsend_interface_delete(client, ifp); | |
516 | } | |
718e3744 | 517 | } |
518 | ||
519 | /* Interface address addition. */ | |
d62a17ae | 520 | void zebra_interface_address_add_update(struct interface *ifp, |
521 | struct connected *ifc) | |
718e3744 | 522 | { |
d62a17ae | 523 | struct listnode *node, *nnode; |
524 | struct zserv *client; | |
525 | struct prefix *p; | |
526 | ||
527 | if (IS_ZEBRA_DEBUG_EVENT) { | |
d62a17ae | 528 | p = ifc->address; |
2dbe669b DA |
529 | zlog_debug( |
530 | "MESSAGE: ZEBRA_INTERFACE_ADDRESS_ADD %pFX on %s(%u)", | |
531 | p, ifp->name, ifp->vrf_id); | |
d62a17ae | 532 | } |
533 | ||
534 | if (!CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) | |
9df414fe | 535 | flog_warn( |
e914ccbe | 536 | EC_ZEBRA_ADVERTISING_UNUSABLE_ADDR, |
ad6f7449 | 537 | "advertising address to clients that is not yet usable."); |
d62a17ae | 538 | |
1a98c087 MK |
539 | zebra_vxlan_add_del_gw_macip(ifp, ifc->address, 1); |
540 | ||
d62a17ae | 541 | router_id_add_address(ifc); |
542 | ||
17da84a4 KS |
543 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
544 | /* Do not send unsolicited messages to synchronous clients. */ | |
545 | if (client->synchronous) | |
546 | continue; | |
547 | ||
d62a17ae | 548 | if (CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) { |
549 | client->connected_rt_add_cnt++; | |
550 | zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_ADD, | |
551 | client, ifp, ifc); | |
552 | } | |
17da84a4 | 553 | } |
718e3744 | 554 | } |
555 | ||
556 | /* Interface address deletion. */ | |
d62a17ae | 557 | void zebra_interface_address_delete_update(struct interface *ifp, |
558 | struct connected *ifc) | |
718e3744 | 559 | { |
d62a17ae | 560 | struct listnode *node, *nnode; |
561 | struct zserv *client; | |
562 | struct prefix *p; | |
563 | ||
564 | if (IS_ZEBRA_DEBUG_EVENT) { | |
d62a17ae | 565 | p = ifc->address; |
2dbe669b DA |
566 | zlog_debug( |
567 | "MESSAGE: ZEBRA_INTERFACE_ADDRESS_DELETE %pFX on %s(%u)", | |
568 | p, ifp->name, ifp->vrf_id); | |
d62a17ae | 569 | } |
570 | ||
1a98c087 MK |
571 | zebra_vxlan_add_del_gw_macip(ifp, ifc->address, 0); |
572 | ||
d62a17ae | 573 | router_id_del_address(ifc); |
574 | ||
17da84a4 KS |
575 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
576 | /* Do not send unsolicited messages to synchronous clients. */ | |
577 | if (client->synchronous) | |
578 | continue; | |
579 | ||
d62a17ae | 580 | if (CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) { |
581 | client->connected_rt_del_cnt++; | |
582 | zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_DELETE, | |
583 | client, ifp, ifc); | |
584 | } | |
17da84a4 | 585 | } |
718e3744 | 586 | } |
d5a5c8f0 | 587 | |
c8e264b6 | 588 | /* Interface VRF change. May need to delete from clients not interested in |
589 | * the new VRF. Note that this function is invoked *prior* to the VRF change. | |
590 | */ | |
d62a17ae | 591 | void zebra_interface_vrf_update_del(struct interface *ifp, vrf_id_t new_vrf_id) |
c8e264b6 | 592 | { |
d62a17ae | 593 | struct listnode *node, *nnode; |
594 | struct zserv *client; | |
595 | ||
596 | if (IS_ZEBRA_DEBUG_EVENT) | |
597 | zlog_debug( | |
598 | "MESSAGE: ZEBRA_INTERFACE_VRF_UPDATE/DEL %s VRF Id %u -> %u", | |
a36898e7 | 599 | ifp->name, ifp->vrf_id, new_vrf_id); |
d62a17ae | 600 | |
161e9ab7 | 601 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
602 | /* Do not send unsolicited messages to synchronous clients. */ |
603 | if (client->synchronous) | |
604 | continue; | |
605 | ||
d62a17ae | 606 | /* Need to delete if the client is not interested in the new |
607 | * VRF. */ | |
608 | zsend_interface_update(ZEBRA_INTERFACE_DOWN, client, ifp); | |
609 | client->ifdel_cnt++; | |
610 | zsend_interface_delete(client, ifp); | |
611 | zsend_interface_vrf_update(client, ifp, new_vrf_id); | |
612 | } | |
c8e264b6 | 613 | } |
614 | ||
615 | /* Interface VRF change. This function is invoked *post* VRF change and sends an | |
616 | * add to clients who are interested in the new VRF but not in the old VRF. | |
617 | */ | |
d62a17ae | 618 | void zebra_interface_vrf_update_add(struct interface *ifp, vrf_id_t old_vrf_id) |
c8e264b6 | 619 | { |
d62a17ae | 620 | struct listnode *node, *nnode; |
621 | struct zserv *client; | |
622 | ||
623 | if (IS_ZEBRA_DEBUG_EVENT) | |
624 | zlog_debug( | |
625 | "MESSAGE: ZEBRA_INTERFACE_VRF_UPDATE/ADD %s VRF Id %u -> %u", | |
a36898e7 | 626 | ifp->name, old_vrf_id, ifp->vrf_id); |
d62a17ae | 627 | |
161e9ab7 | 628 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
629 | /* Do not send unsolicited messages to synchronous clients. */ |
630 | if (client->synchronous) | |
631 | continue; | |
632 | ||
d62a17ae | 633 | /* Need to add if the client is interested in the new VRF. */ |
634 | client->ifadd_cnt++; | |
635 | zsend_interface_add(client, ifp); | |
636 | zsend_interface_addresses(client, ifp); | |
637 | } | |
c8e264b6 | 638 | } |
639 | ||
fe257ae7 DS |
640 | int zebra_add_import_table_entry(struct zebra_vrf *zvrf, struct route_node *rn, |
641 | struct route_entry *re, const char *rmap_name) | |
7a4bb9c5 | 642 | { |
d62a17ae | 643 | struct route_entry *newre; |
644 | struct route_entry *same; | |
645 | struct prefix p; | |
0eb97b86 | 646 | struct nexthop_group *ng; |
b68885f9 | 647 | route_map_result_t ret = RMAP_PERMITMATCH; |
f8c175f3 | 648 | afi_t afi; |
d62a17ae | 649 | |
f8c175f3 | 650 | afi = family2afi(rn->p.family); |
d62a17ae | 651 | if (rmap_name) |
652 | ret = zebra_import_table_route_map_check( | |
0eb97b86 | 653 | afi, re->type, re->instance, &rn->p, |
c415d895 | 654 | re->nhe->nhg.nexthop, |
fe257ae7 | 655 | zvrf->vrf->vrf_id, re->tag, rmap_name); |
d62a17ae | 656 | |
b68885f9 | 657 | if (ret != RMAP_PERMITMATCH) { |
85c615ac | 658 | UNSET_FLAG(re->flags, ZEBRA_FLAG_SELECTED); |
fe257ae7 | 659 | zebra_del_import_table_entry(zvrf, rn, re); |
20796bc3 DS |
660 | return 0; |
661 | } | |
d62a17ae | 662 | |
f8c175f3 | 663 | prefix_copy(&p, &rn->p); |
d62a17ae | 664 | |
a2addae8 RW |
665 | RNODE_FOREACH_RE (rn, same) { |
666 | if (CHECK_FLAG(same->status, ROUTE_ENTRY_REMOVED)) | |
f8c175f3 | 667 | continue; |
20796bc3 | 668 | |
996c9314 | 669 | if (same->type == re->type && same->instance == re->instance |
f8c175f3 DS |
670 | && same->table == re->table |
671 | && same->type != ZEBRA_ROUTE_CONNECT) | |
672 | break; | |
673 | } | |
20796bc3 | 674 | |
e71c84ca DS |
675 | if (same) { |
676 | UNSET_FLAG(same->flags, ZEBRA_FLAG_SELECTED); | |
fe257ae7 | 677 | zebra_del_import_table_entry(zvrf, rn, same); |
e71c84ca | 678 | } |
f8c175f3 | 679 | |
996c9314 | 680 | newre = XCALLOC(MTYPE_RE, sizeof(struct route_entry)); |
5c4b6e57 DS |
681 | newre->type = ZEBRA_ROUTE_TABLE; |
682 | newre->distance = zebra_import_table_distance[afi][re->table]; | |
683 | newre->flags = re->flags; | |
684 | newre->metric = re->metric; | |
685 | newre->mtu = re->mtu; | |
317c6a10 | 686 | newre->table = zvrf->table_id; |
98572489 | 687 | newre->uptime = monotime(NULL); |
5c4b6e57 | 688 | newre->instance = re->table; |
5c4b6e57 | 689 | |
0eb97b86 | 690 | ng = nexthop_group_new(); |
c415d895 | 691 | copy_nexthops(&ng->nexthop, re->nhe->nhg.nexthop, NULL); |
0eb97b86 MS |
692 | |
693 | rib_add_multipath(afi, SAFI_UNICAST, &p, NULL, newre, ng); | |
5c4b6e57 | 694 | |
d62a17ae | 695 | return 0; |
7a4bb9c5 DS |
696 | } |
697 | ||
fe257ae7 DS |
698 | int zebra_del_import_table_entry(struct zebra_vrf *zvrf, struct route_node *rn, |
699 | struct route_entry *re) | |
7a4bb9c5 | 700 | { |
d62a17ae | 701 | struct prefix p; |
f8c175f3 | 702 | afi_t afi; |
7a4bb9c5 | 703 | |
f8c175f3 DS |
704 | afi = family2afi(rn->p.family); |
705 | prefix_copy(&p, &rn->p); | |
7a4bb9c5 | 706 | |
fe257ae7 | 707 | rib_delete(afi, SAFI_UNICAST, zvrf->vrf->vrf_id, ZEBRA_ROUTE_TABLE, |
c415d895 | 708 | re->table, re->flags, &p, NULL, re->nhe->nhg.nexthop, |
0eb97b86 | 709 | re->nhe_id, zvrf->table_id, re->metric, re->distance, |
3ceae22b | 710 | false); |
7a4bb9c5 | 711 | |
d62a17ae | 712 | return 0; |
7a4bb9c5 DS |
713 | } |
714 | ||
715 | /* Assuming no one calls this with the main routing table */ | |
fe257ae7 DS |
716 | int zebra_import_table(afi_t afi, vrf_id_t vrf_id, uint32_t table_id, |
717 | uint32_t distance, const char *rmap_name, int add) | |
7a4bb9c5 | 718 | { |
d62a17ae | 719 | struct route_table *table; |
720 | struct route_entry *re; | |
721 | struct route_node *rn; | |
fe257ae7 | 722 | struct zebra_vrf *zvrf = zebra_vrf_lookup_by_id(vrf_id); |
d62a17ae | 723 | |
724 | if (!is_zebra_valid_kernel_table(table_id) | |
c447ad08 | 725 | || (table_id == RT_TABLE_MAIN)) |
95f7965d | 726 | return -1; |
d62a17ae | 727 | |
728 | if (afi >= AFI_MAX) | |
95f7965d | 729 | return -1; |
d62a17ae | 730 | |
c7c0b007 SW |
731 | table = zebra_vrf_get_table_with_table_id(afi, SAFI_UNICAST, vrf_id, |
732 | table_id); | |
d62a17ae | 733 | if (table == NULL) { |
734 | return 0; | |
735 | } else if (IS_ZEBRA_DEBUG_RIB) { | |
736 | zlog_debug("%s routes from table %d", | |
737 | add ? "Importing" : "Unimporting", table_id); | |
7a4bb9c5 DS |
738 | } |
739 | ||
d62a17ae | 740 | if (add) { |
741 | if (rmap_name) | |
742 | zebra_add_import_table_route_map(afi, rmap_name, | |
743 | table_id); | |
744 | else { | |
745 | rmap_name = | |
746 | zebra_get_import_table_route_map(afi, table_id); | |
3660beec | 747 | if (rmap_name) { |
d62a17ae | 748 | zebra_del_import_table_route_map(afi, table_id); |
3660beec DS |
749 | rmap_name = NULL; |
750 | } | |
d62a17ae | 751 | } |
7a4bb9c5 | 752 | |
d62a17ae | 753 | zebra_import_table_used[afi][table_id] = 1; |
754 | zebra_import_table_distance[afi][table_id] = distance; | |
755 | } else { | |
756 | zebra_import_table_used[afi][table_id] = 0; | |
757 | zebra_import_table_distance[afi][table_id] = | |
758 | ZEBRA_TABLE_DISTANCE_DEFAULT; | |
759 | ||
760 | rmap_name = zebra_get_import_table_route_map(afi, table_id); | |
3660beec | 761 | if (rmap_name) { |
d62a17ae | 762 | zebra_del_import_table_route_map(afi, table_id); |
3660beec DS |
763 | rmap_name = NULL; |
764 | } | |
7a4bb9c5 | 765 | } |
7a4bb9c5 | 766 | |
d62a17ae | 767 | for (rn = route_top(table); rn; rn = route_next(rn)) { |
768 | /* For each entry in the non-default routing table, | |
769 | * add the entry in the main table | |
770 | */ | |
771 | if (!rn->info) | |
772 | continue; | |
773 | ||
a2addae8 | 774 | RNODE_FOREACH_RE (rn, re) { |
d62a17ae | 775 | if (CHECK_FLAG(re->status, ROUTE_ENTRY_REMOVED)) |
776 | continue; | |
777 | break; | |
7a4bb9c5 | 778 | } |
8902474b | 779 | |
d62a17ae | 780 | if (!re) |
781 | continue; | |
8902474b | 782 | |
d62a17ae | 783 | if (((afi == AFI_IP) && (rn->p.family == AF_INET)) |
784 | || ((afi == AFI_IP6) && (rn->p.family == AF_INET6))) { | |
785 | if (add) | |
fe257ae7 DS |
786 | zebra_add_import_table_entry(zvrf, rn, re, |
787 | rmap_name); | |
d62a17ae | 788 | else |
fe257ae7 | 789 | zebra_del_import_table_entry(zvrf, rn, re); |
d62a17ae | 790 | } |
791 | } | |
792 | return 0; | |
793 | } | |
794 | ||
fe257ae7 | 795 | int zebra_import_table_config(struct vty *vty, vrf_id_t vrf_id) |
d62a17ae | 796 | { |
797 | int i; | |
798 | afi_t afi; | |
799 | int write = 0; | |
800 | char afi_str[AFI_MAX][10] = {"", "ip", "ipv6", "ethernet"}; | |
801 | const char *rmap_name; | |
802 | ||
803 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
804 | for (i = 1; i < ZEBRA_KERNEL_TABLE_MAX; i++) { | |
fe257ae7 | 805 | if (!is_zebra_import_table_enabled(afi, vrf_id, i)) |
20796bc3 | 806 | continue; |
d62a17ae | 807 | |
20796bc3 DS |
808 | if (zebra_import_table_distance[afi][i] |
809 | != ZEBRA_TABLE_DISTANCE_DEFAULT) { | |
996c9314 | 810 | vty_out(vty, "%s import-table %d distance %d", |
20796bc3 DS |
811 | afi_str[afi], i, |
812 | zebra_import_table_distance[afi][i]); | |
813 | } else { | |
996c9314 LB |
814 | vty_out(vty, "%s import-table %d", afi_str[afi], |
815 | i); | |
d62a17ae | 816 | } |
20796bc3 DS |
817 | |
818 | rmap_name = zebra_get_import_table_route_map(afi, i); | |
819 | if (rmap_name) | |
996c9314 | 820 | vty_out(vty, " route-map %s", rmap_name); |
20796bc3 DS |
821 | |
822 | vty_out(vty, "\n"); | |
823 | write = 1; | |
d62a17ae | 824 | } |
7a4bb9c5 | 825 | } |
7a4bb9c5 | 826 | |
d62a17ae | 827 | return write; |
7a4bb9c5 | 828 | } |
8902474b | 829 | |
fe257ae7 DS |
830 | static void zebra_import_table_rm_update_vrf_afi(struct zebra_vrf *zvrf, |
831 | afi_t afi, int table_id, | |
832 | const char *rmap) | |
8902474b | 833 | { |
d62a17ae | 834 | struct route_table *table; |
835 | struct route_entry *re; | |
836 | struct route_node *rn; | |
837 | const char *rmap_name; | |
838 | ||
fe257ae7 DS |
839 | rmap_name = zebra_get_import_table_route_map(afi, table_id); |
840 | if ((!rmap_name) || (strcmp(rmap_name, rmap) != 0)) | |
841 | return; | |
d62a17ae | 842 | |
c7c0b007 SW |
843 | table = zebra_vrf_get_table_with_table_id(afi, SAFI_UNICAST, |
844 | zvrf->vrf->vrf_id, table_id); | |
fe257ae7 DS |
845 | if (!table) { |
846 | if (IS_ZEBRA_DEBUG_RIB_DETAILED) | |
847 | zlog_debug("%s: Table id=%d not found", __func__, | |
848 | table_id); | |
849 | return; | |
850 | } | |
851 | ||
852 | for (rn = route_top(table); rn; rn = route_next(rn)) { | |
853 | /* | |
854 | * For each entry in the non-default routing table, | |
855 | * add the entry in the main table | |
856 | */ | |
857 | if (!rn->info) | |
858 | continue; | |
859 | ||
860 | RNODE_FOREACH_RE (rn, re) { | |
861 | if (CHECK_FLAG(re->status, ROUTE_ENTRY_REMOVED)) | |
d5b8c216 | 862 | continue; |
fe257ae7 DS |
863 | break; |
864 | } | |
865 | ||
866 | if (!re) | |
867 | continue; | |
868 | ||
869 | if (((afi == AFI_IP) && (rn->p.family == AF_INET)) | |
870 | || ((afi == AFI_IP6) && (rn->p.family == AF_INET6))) | |
871 | zebra_add_import_table_entry(zvrf, rn, re, rmap_name); | |
872 | } | |
873 | ||
874 | return; | |
875 | } | |
876 | ||
877 | static void zebra_import_table_rm_update_vrf(struct zebra_vrf *zvrf, | |
878 | const char *rmap) | |
879 | { | |
880 | afi_t afi; | |
881 | int i; | |
882 | ||
883 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
884 | for (i = 1; i < ZEBRA_KERNEL_TABLE_MAX; i++) { | |
885 | if (!is_zebra_import_table_enabled( | |
886 | afi, zvrf->vrf->vrf_id, i)) | |
2c7ef20d | 887 | continue; |
2c7ef20d | 888 | |
fe257ae7 DS |
889 | zebra_import_table_rm_update_vrf_afi(zvrf, afi, i, |
890 | rmap); | |
d62a17ae | 891 | } |
8902474b | 892 | } |
fe257ae7 | 893 | } |
8902474b | 894 | |
fe257ae7 DS |
895 | void zebra_import_table_rm_update(const char *rmap) |
896 | { | |
897 | struct vrf *vrf; | |
898 | struct zebra_vrf *zvrf; | |
899 | ||
900 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) { | |
901 | zvrf = vrf->info; | |
902 | ||
903 | if (!zvrf) | |
904 | continue; | |
905 | ||
906 | zebra_import_table_rm_update_vrf(zvrf, rmap); | |
907 | } | |
8902474b | 908 | } |
16f1b9ee OD |
909 | |
910 | /* Interface parameters update */ | |
d62a17ae | 911 | void zebra_interface_parameters_update(struct interface *ifp) |
16f1b9ee | 912 | { |
d62a17ae | 913 | struct listnode *node, *nnode; |
914 | struct zserv *client; | |
16f1b9ee | 915 | |
d62a17ae | 916 | if (IS_ZEBRA_DEBUG_EVENT) |
38bbad1b | 917 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_LINK_PARAMS %s(%u)", |
a36898e7 | 918 | ifp->name, ifp->vrf_id); |
16f1b9ee | 919 | |
17da84a4 KS |
920 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
921 | /* Do not send unsolicited messages to synchronous clients. */ | |
922 | if (client->synchronous) | |
923 | continue; | |
924 | ||
a8a20c4e | 925 | zsend_interface_link_params(client, ifp); |
17da84a4 | 926 | } |
16f1b9ee | 927 | } |