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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( |
1945fb7a | 125 | "%s: client %s %pFX(%u:%u) checking: selected=%d, type=%d, distance=%d, metric=%d zebra_check_addr=%d", |
d62a17ae | 126 | __func__, |
1b6e575b | 127 | zebra_route_string(client->proto), |
1945fb7a DS |
128 | dst_p, vrf_id, newre->instance, |
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 | { | |
79a9ad14 DS |
156 | struct zebra_vrf *zvrf; |
157 | ||
14fe366e S |
158 | /* Process only if there is valid re */ |
159 | if (!re) | |
160 | return false; | |
161 | ||
79a9ad14 DS |
162 | zvrf = vrf_info_lookup(re->vrf_id); |
163 | if (re->vrf_id == VRF_DEFAULT && zvrf->table_id != re->table) | |
164 | return false; | |
165 | ||
14fe366e S |
166 | /* If default route and redistributed */ |
167 | if (is_default_prefix(p) | |
168 | && vrf_bitmap_check(client->redist_default[afi], re->vrf_id)) | |
169 | return true; | |
170 | ||
171 | /* If redistribute in enabled for zebra route all */ | |
172 | if (vrf_bitmap_check(client->redist[afi][ZEBRA_ROUTE_ALL], re->vrf_id)) | |
173 | return true; | |
174 | ||
175 | /* | |
176 | * If multi-instance then check for route | |
177 | * redistribution for given instance. | |
178 | */ | |
deb39cca DS |
179 | if (re->instance) { |
180 | if (redist_check_instance(&client->mi_redist[afi][re->type], | |
181 | re->instance)) | |
182 | return true; | |
183 | else | |
184 | return false; | |
185 | } | |
14fe366e S |
186 | |
187 | /* If redistribution is enabled for give route type. */ | |
188 | if (vrf_bitmap_check(client->redist[afi][re->type], re->vrf_id)) | |
189 | return true; | |
190 | ||
191 | return false; | |
192 | } | |
193 | ||
c41fc67b | 194 | /* Either advertise a route for redistribution to registered clients or */ |
195 | /* withdraw redistribution if add cannot be done for client */ | |
86391e56 | 196 | void redistribute_update(const struct prefix *p, const struct prefix *src_p, |
40f321c0 MS |
197 | const struct route_entry *re, |
198 | const struct route_entry *prev_re) | |
718e3744 | 199 | { |
d62a17ae | 200 | struct listnode *node, *nnode; |
201 | struct zserv *client; | |
d62a17ae | 202 | int afi; |
d62a17ae | 203 | |
2dbe669b | 204 | if (IS_ZEBRA_DEBUG_RIB) |
d62a17ae | 205 | zlog_debug( |
1945fb7a DS |
206 | "(%u:%u):%pFX(%u): Redist update re %p (%s), old %p (%s)", |
207 | re->vrf_id, re->table, p, re->instance, re, | |
2dbe669b | 208 | zebra_route_string(re->type), prev_re, |
2da33d6b | 209 | prev_re ? zebra_route_string(prev_re->type) : "None"); |
d62a17ae | 210 | |
211 | afi = family2afi(p->family); | |
212 | if (!afi) { | |
e914ccbe | 213 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, |
1d5453d6 | 214 | "%s: Unknown AFI/SAFI prefix received", __func__); |
d62a17ae | 215 | return; |
c41fc67b | 216 | } |
79becec8 | 217 | if (!zebra_check_addr(p)) { |
218 | if (IS_ZEBRA_DEBUG_RIB) | |
2dbe669b | 219 | zlog_debug("Redist update filter prefix %pFX", p); |
79becec8 | 220 | return; |
221 | } | |
222 | ||
d62a17ae | 223 | |
161e9ab7 | 224 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
14fe366e | 225 | if (zebra_redistribute_check(re, client, p, afi)) { |
14a4d9d0 | 226 | if (IS_ZEBRA_DEBUG_RIB) { |
3e178809 | 227 | zlog_debug( |
2dbe669b | 228 | "%s: client %s %pFX(%u:%u), type=%d, distance=%d, metric=%d", |
c2c02b76 | 229 | __func__, |
2dbe669b | 230 | zebra_route_string(client->proto), p, |
c2c02b76 DS |
231 | re->vrf_id, re->table, re->type, |
232 | re->distance, re->metric); | |
3e178809 | 233 | } |
74489921 RW |
234 | zsend_redistribute_route(ZEBRA_REDISTRIBUTE_ROUTE_ADD, |
235 | client, p, src_p, re); | |
14fe366e | 236 | } else if (zebra_redistribute_check(prev_re, client, p, afi)) |
74489921 RW |
237 | zsend_redistribute_route(ZEBRA_REDISTRIBUTE_ROUTE_DEL, |
238 | client, p, src_p, prev_re); | |
c41fc67b | 239 | } |
718e3744 | 240 | } |
241 | ||
40f321c0 MS |
242 | /* |
243 | * During a route delete, where 'new_re' is NULL, redist a delete to all | |
244 | * clients registered for the type of 'old_re'. | |
245 | * During a route update, redist a delete to any clients who will not see | |
246 | * an update when the new route is installed. There are cases when a client | |
247 | * may have seen a redist for 'old_re', but will not see | |
248 | * the redist for 'new_re'. | |
249 | */ | |
86391e56 | 250 | void redistribute_delete(const struct prefix *p, const struct prefix *src_p, |
40f321c0 MS |
251 | const struct route_entry *old_re, |
252 | const struct route_entry *new_re) | |
718e3744 | 253 | { |
d62a17ae | 254 | struct listnode *node, *nnode; |
255 | struct zserv *client; | |
d62a17ae | 256 | int afi; |
40f321c0 MS |
257 | vrf_id_t vrfid; |
258 | ||
259 | if (old_re) | |
260 | vrfid = old_re->vrf_id; | |
261 | else if (new_re) | |
262 | vrfid = new_re->vrf_id; | |
263 | else | |
264 | return; | |
d62a17ae | 265 | |
266 | if (IS_ZEBRA_DEBUG_RIB) { | |
2dbe669b DA |
267 | zlog_debug("%u:%pFX: Redist del: re %p (%s), new re %p (%s)", |
268 | vrfid, p, old_re, | |
269 | old_re ? zebra_route_string(old_re->type) : "None", | |
270 | new_re, | |
271 | new_re ? zebra_route_string(new_re->type) : "None"); | |
d62a17ae | 272 | } |
273 | ||
d62a17ae | 274 | afi = family2afi(p->family); |
275 | if (!afi) { | |
e914ccbe | 276 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, |
1d5453d6 | 277 | "%s: Unknown AFI/SAFI prefix received", |
40f321c0 | 278 | __func__); |
d62a17ae | 279 | return; |
280 | } | |
281 | ||
40f321c0 | 282 | /* Skip invalid (e.g. linklocal) prefix */ |
79becec8 | 283 | if (!zebra_check_addr(p)) { |
40f321c0 MS |
284 | if (IS_ZEBRA_DEBUG_RIB) { |
285 | zlog_debug( | |
2dbe669b DA |
286 | "%u:%pFX: Redist del old: skipping invalid prefix", |
287 | vrfid, p); | |
40f321c0 | 288 | } |
79becec8 | 289 | return; |
290 | } | |
291 | ||
161e9ab7 | 292 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
293 | /* Do not send unsolicited messages to synchronous clients. */ |
294 | if (client->synchronous) | |
295 | continue; | |
14fe366e S |
296 | /* |
297 | * Skip this client if it will receive an update for the | |
298 | * 'new' re | |
299 | */ | |
300 | if (zebra_redistribute_check(new_re, client, p, afi)) | |
301 | continue; | |
40f321c0 MS |
302 | |
303 | /* Send a delete for the 'old' re to any subscribed client. */ | |
14fe366e | 304 | if (zebra_redistribute_check(old_re, client, p, afi)) |
74489921 | 305 | zsend_redistribute_route(ZEBRA_REDISTRIBUTE_ROUTE_DEL, |
40f321c0 | 306 | client, p, src_p, old_re); |
1eb8ef25 | 307 | } |
718e3744 | 308 | } |
309 | ||
14fe366e | 310 | |
89f4e507 | 311 | void zebra_redistribute_add(ZAPI_HANDLER_ARGS) |
718e3744 | 312 | { |
ec93aa12 DS |
313 | afi_t afi = 0; |
314 | int type = 0; | |
d7c0a89a | 315 | unsigned short instance; |
d62a17ae | 316 | |
1002497a QY |
317 | STREAM_GETC(msg, afi); |
318 | STREAM_GETC(msg, type); | |
319 | STREAM_GETW(msg, instance); | |
d62a17ae | 320 | |
1b6e575b PZ |
321 | if (IS_ZEBRA_DEBUG_EVENT) |
322 | zlog_debug( | |
c479e756 | 323 | "%s: client proto %s afi=%d, wants %s, vrf %s(%u), instance=%d", |
1b6e575b | 324 | __func__, zebra_route_string(client->proto), afi, |
c479e756 DS |
325 | zebra_route_string(type), VRF_LOGNAME(zvrf->vrf), |
326 | zvrf_id(zvrf), instance); | |
1b6e575b | 327 | |
e1fa928d | 328 | if (afi == 0 || afi >= AFI_MAX) { |
e914ccbe | 329 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, |
15569c58 | 330 | "%s: Specified afi %d does not exist", __func__, afi); |
d62a17ae | 331 | return; |
ec93aa12 DS |
332 | } |
333 | ||
334 | if (type == 0 || type >= ZEBRA_ROUTE_MAX) { | |
9df414fe | 335 | zlog_debug("%s: Specified Route Type %d does not exist", |
15569c58 | 336 | __func__, type); |
ec93aa12 DS |
337 | return; |
338 | } | |
d62a17ae | 339 | |
340 | if (instance) { | |
341 | if (!redist_check_instance(&client->mi_redist[afi][type], | |
342 | instance)) { | |
343 | redist_add_instance(&client->mi_redist[afi][type], | |
344 | instance); | |
345 | zebra_redistribute(client, type, instance, | |
346 | zvrf_id(zvrf), afi); | |
347 | } | |
348 | } else { | |
d9083050 IR |
349 | if (!vrf_bitmap_check(client->redist[afi][type], |
350 | zvrf_id(zvrf))) { | |
351 | if (IS_ZEBRA_DEBUG_EVENT) | |
352 | zlog_debug( | |
353 | "%s: setting vrf %s(%u) redist bitmap", | |
354 | __func__, VRF_LOGNAME(zvrf->vrf), | |
355 | zvrf_id(zvrf)); | |
356 | vrf_bitmap_set(client->redist[afi][type], | |
357 | zvrf_id(zvrf)); | |
358 | zebra_redistribute(client, type, 0, zvrf_id(zvrf), afi); | |
359 | } | |
4e1cadf0 | 360 | } |
ec93aa12 DS |
361 | |
362 | stream_failure: | |
363 | return; | |
ebf08631 | 364 | } |
718e3744 | 365 | |
89f4e507 | 366 | void zebra_redistribute_delete(ZAPI_HANDLER_ARGS) |
718e3744 | 367 | { |
ec93aa12 DS |
368 | afi_t afi = 0; |
369 | int type = 0; | |
d7c0a89a | 370 | unsigned short instance; |
d62a17ae | 371 | |
1002497a QY |
372 | STREAM_GETC(msg, afi); |
373 | STREAM_GETC(msg, type); | |
374 | STREAM_GETW(msg, instance); | |
d62a17ae | 375 | |
67da9573 EDP |
376 | if (IS_ZEBRA_DEBUG_EVENT) |
377 | zlog_debug( | |
378 | "%s: client proto %s afi=%d, no longer wants %s, vrf %s(%u), instance=%d", | |
379 | __func__, zebra_route_string(client->proto), afi, | |
380 | zebra_route_string(type), VRF_LOGNAME(zvrf->vrf), | |
381 | zvrf_id(zvrf), instance); | |
382 | ||
383 | ||
e1fa928d | 384 | if (afi == 0 || afi >= AFI_MAX) { |
e914ccbe | 385 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, |
15569c58 | 386 | "%s: Specified afi %d does not exist", __func__, afi); |
d62a17ae | 387 | return; |
ec93aa12 DS |
388 | } |
389 | ||
390 | if (type == 0 || type >= ZEBRA_ROUTE_MAX) { | |
9df414fe | 391 | zlog_debug("%s: Specified Route Type %d does not exist", |
15569c58 | 392 | __func__, type); |
ec93aa12 DS |
393 | return; |
394 | } | |
d62a17ae | 395 | |
396 | /* | |
397 | * NOTE: no need to withdraw the previously advertised routes. The | |
398 | * clients | |
399 | * themselves should keep track of the received routes from zebra and | |
400 | * withdraw them when necessary. | |
401 | */ | |
402 | if (instance) | |
403 | redist_del_instance(&client->mi_redist[afi][type], instance); | |
404 | else | |
405 | vrf_bitmap_unset(client->redist[afi][type], zvrf_id(zvrf)); | |
ec93aa12 DS |
406 | |
407 | stream_failure: | |
408 | return; | |
ebf08631 | 409 | } |
718e3744 | 410 | |
89f4e507 | 411 | void zebra_redistribute_default_add(ZAPI_HANDLER_ARGS) |
718e3744 | 412 | { |
49db7a7b RW |
413 | afi_t afi = 0; |
414 | ||
415 | STREAM_GETC(msg, afi); | |
416 | ||
417 | if (afi == 0 || afi >= AFI_MAX) { | |
418 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, | |
15569c58 | 419 | "%s: Specified afi %u does not exist", __func__, afi); |
49db7a7b RW |
420 | return; |
421 | } | |
422 | ||
423 | vrf_bitmap_set(client->redist_default[afi], zvrf_id(zvrf)); | |
d62a17ae | 424 | zebra_redistribute_default(client, zvrf_id(zvrf)); |
49db7a7b RW |
425 | |
426 | stream_failure: | |
427 | return; | |
d62a17ae | 428 | } |
718e3744 | 429 | |
89f4e507 | 430 | void zebra_redistribute_default_delete(ZAPI_HANDLER_ARGS) |
718e3744 | 431 | { |
49db7a7b RW |
432 | afi_t afi = 0; |
433 | ||
434 | STREAM_GETC(msg, afi); | |
435 | ||
436 | if (afi == 0 || afi >= AFI_MAX) { | |
437 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, | |
15569c58 | 438 | "%s: Specified afi %u does not exist", __func__, afi); |
49db7a7b RW |
439 | return; |
440 | } | |
441 | ||
442 | vrf_bitmap_unset(client->redist_default[afi], zvrf_id(zvrf)); | |
443 | ||
444 | stream_failure: | |
445 | return; | |
d62a17ae | 446 | } |
718e3744 | 447 | |
448 | /* Interface up information. */ | |
d62a17ae | 449 | void zebra_interface_up_update(struct interface *ifp) |
718e3744 | 450 | { |
d62a17ae | 451 | struct listnode *node, *nnode; |
452 | struct zserv *client; | |
453 | ||
454 | if (IS_ZEBRA_DEBUG_EVENT) | |
096f7609 IR |
455 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_UP %s vrf %s(%u)", |
456 | ifp->name, ifp->vrf->name, ifp->vrf->vrf_id); | |
d62a17ae | 457 | |
458 | if (ifp->ptm_status || !ifp->ptm_enable) { | |
161e9ab7 | 459 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, |
a8a20c4e | 460 | client)) { |
17da84a4 KS |
461 | /* Do not send unsolicited messages to synchronous |
462 | * clients. | |
463 | */ | |
464 | if (client->synchronous) | |
465 | continue; | |
466 | ||
a8a20c4e DS |
467 | zsend_interface_update(ZEBRA_INTERFACE_UP, |
468 | client, ifp); | |
469 | zsend_interface_link_params(client, ifp); | |
470 | } | |
16f1b9ee | 471 | } |
718e3744 | 472 | } |
473 | ||
474 | /* Interface down information. */ | |
d62a17ae | 475 | void zebra_interface_down_update(struct interface *ifp) |
718e3744 | 476 | { |
d62a17ae | 477 | struct listnode *node, *nnode; |
478 | struct zserv *client; | |
718e3744 | 479 | |
d62a17ae | 480 | if (IS_ZEBRA_DEBUG_EVENT) |
096f7609 IR |
481 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_DOWN %s vrf %s(%u)", |
482 | ifp->name, ifp->vrf->name, ifp->vrf->vrf_id); | |
718e3744 | 483 | |
161e9ab7 | 484 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
485 | /* Do not send unsolicited messages to synchronous clients. */ |
486 | if (client->synchronous) | |
487 | continue; | |
488 | ||
d62a17ae | 489 | zsend_interface_update(ZEBRA_INTERFACE_DOWN, client, ifp); |
490 | } | |
718e3744 | 491 | } |
492 | ||
493 | /* Interface information update. */ | |
d62a17ae | 494 | void zebra_interface_add_update(struct interface *ifp) |
718e3744 | 495 | { |
d62a17ae | 496 | struct listnode *node, *nnode; |
497 | struct zserv *client; | |
498 | ||
499 | if (IS_ZEBRA_DEBUG_EVENT) | |
096f7609 IR |
500 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_ADD %s vrf %s(%u)", |
501 | ifp->name, ifp->vrf->name, ifp->vrf->vrf_id); | |
d62a17ae | 502 | |
a8a20c4e | 503 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
504 | /* Do not send unsolicited messages to synchronous clients. */ |
505 | if (client->synchronous) | |
506 | continue; | |
507 | ||
a8a20c4e DS |
508 | client->ifadd_cnt++; |
509 | zsend_interface_add(client, ifp); | |
510 | zsend_interface_link_params(client, ifp); | |
511 | } | |
718e3744 | 512 | } |
513 | ||
d62a17ae | 514 | void zebra_interface_delete_update(struct interface *ifp) |
718e3744 | 515 | { |
d62a17ae | 516 | struct listnode *node, *nnode; |
517 | struct zserv *client; | |
718e3744 | 518 | |
d62a17ae | 519 | if (IS_ZEBRA_DEBUG_EVENT) |
096f7609 IR |
520 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_DELETE %s vrf %s(%u)", |
521 | ifp->name, ifp->vrf->name, ifp->vrf->vrf_id); | |
718e3744 | 522 | |
161e9ab7 | 523 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
524 | /* Do not send unsolicited messages to synchronous clients. */ |
525 | if (client->synchronous) | |
526 | continue; | |
527 | ||
d62a17ae | 528 | client->ifdel_cnt++; |
529 | zsend_interface_delete(client, ifp); | |
530 | } | |
718e3744 | 531 | } |
532 | ||
533 | /* Interface address addition. */ | |
d62a17ae | 534 | void zebra_interface_address_add_update(struct interface *ifp, |
535 | struct connected *ifc) | |
718e3744 | 536 | { |
d62a17ae | 537 | struct listnode *node, *nnode; |
538 | struct zserv *client; | |
539 | struct prefix *p; | |
540 | ||
541 | if (IS_ZEBRA_DEBUG_EVENT) { | |
d62a17ae | 542 | p = ifc->address; |
2dbe669b | 543 | zlog_debug( |
096f7609 IR |
544 | "MESSAGE: ZEBRA_INTERFACE_ADDRESS_ADD %pFX on %s vrf %s(%u)", |
545 | p, ifp->name, ifp->vrf->name, ifp->vrf->vrf_id); | |
d62a17ae | 546 | } |
547 | ||
548 | if (!CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) | |
9df414fe | 549 | flog_warn( |
e914ccbe | 550 | EC_ZEBRA_ADVERTISING_UNUSABLE_ADDR, |
ad6f7449 | 551 | "advertising address to clients that is not yet usable."); |
d62a17ae | 552 | |
1a98c087 MK |
553 | zebra_vxlan_add_del_gw_macip(ifp, ifc->address, 1); |
554 | ||
d62a17ae | 555 | router_id_add_address(ifc); |
556 | ||
17da84a4 KS |
557 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
558 | /* Do not send unsolicited messages to synchronous clients. */ | |
559 | if (client->synchronous) | |
560 | continue; | |
561 | ||
d62a17ae | 562 | if (CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) { |
563 | client->connected_rt_add_cnt++; | |
564 | zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_ADD, | |
565 | client, ifp, ifc); | |
566 | } | |
17da84a4 | 567 | } |
718e3744 | 568 | } |
569 | ||
570 | /* Interface address deletion. */ | |
d62a17ae | 571 | void zebra_interface_address_delete_update(struct interface *ifp, |
572 | struct connected *ifc) | |
718e3744 | 573 | { |
d62a17ae | 574 | struct listnode *node, *nnode; |
575 | struct zserv *client; | |
576 | struct prefix *p; | |
577 | ||
578 | if (IS_ZEBRA_DEBUG_EVENT) { | |
d62a17ae | 579 | p = ifc->address; |
2dbe669b | 580 | zlog_debug( |
096f7609 IR |
581 | "MESSAGE: ZEBRA_INTERFACE_ADDRESS_DELETE %pFX on %s vrf %s(%u)", |
582 | p, ifp->name, ifp->vrf->name, ifp->vrf->vrf_id); | |
d62a17ae | 583 | } |
584 | ||
1a98c087 MK |
585 | zebra_vxlan_add_del_gw_macip(ifp, ifc->address, 0); |
586 | ||
d62a17ae | 587 | router_id_del_address(ifc); |
588 | ||
17da84a4 KS |
589 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
590 | /* Do not send unsolicited messages to synchronous clients. */ | |
591 | if (client->synchronous) | |
592 | continue; | |
593 | ||
d62a17ae | 594 | if (CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) { |
595 | client->connected_rt_del_cnt++; | |
596 | zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_DELETE, | |
597 | client, ifp, ifc); | |
598 | } | |
17da84a4 | 599 | } |
718e3744 | 600 | } |
d5a5c8f0 | 601 | |
c8e264b6 | 602 | /* Interface VRF change. May need to delete from clients not interested in |
603 | * the new VRF. Note that this function is invoked *prior* to the VRF change. | |
604 | */ | |
d62a17ae | 605 | void zebra_interface_vrf_update_del(struct interface *ifp, vrf_id_t new_vrf_id) |
c8e264b6 | 606 | { |
d62a17ae | 607 | struct listnode *node, *nnode; |
608 | struct zserv *client; | |
609 | ||
610 | if (IS_ZEBRA_DEBUG_EVENT) | |
611 | zlog_debug( | |
612 | "MESSAGE: ZEBRA_INTERFACE_VRF_UPDATE/DEL %s VRF Id %u -> %u", | |
096f7609 | 613 | ifp->name, ifp->vrf->vrf_id, new_vrf_id); |
d62a17ae | 614 | |
161e9ab7 | 615 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
616 | /* Do not send unsolicited messages to synchronous clients. */ |
617 | if (client->synchronous) | |
618 | continue; | |
619 | ||
d62a17ae | 620 | /* Need to delete if the client is not interested in the new |
621 | * VRF. */ | |
622 | zsend_interface_update(ZEBRA_INTERFACE_DOWN, client, ifp); | |
623 | client->ifdel_cnt++; | |
624 | zsend_interface_delete(client, ifp); | |
625 | zsend_interface_vrf_update(client, ifp, new_vrf_id); | |
626 | } | |
c8e264b6 | 627 | } |
628 | ||
629 | /* Interface VRF change. This function is invoked *post* VRF change and sends an | |
630 | * add to clients who are interested in the new VRF but not in the old VRF. | |
631 | */ | |
d62a17ae | 632 | void zebra_interface_vrf_update_add(struct interface *ifp, vrf_id_t old_vrf_id) |
c8e264b6 | 633 | { |
d62a17ae | 634 | struct listnode *node, *nnode; |
635 | struct zserv *client; | |
636 | ||
637 | if (IS_ZEBRA_DEBUG_EVENT) | |
638 | zlog_debug( | |
639 | "MESSAGE: ZEBRA_INTERFACE_VRF_UPDATE/ADD %s VRF Id %u -> %u", | |
096f7609 | 640 | ifp->name, old_vrf_id, ifp->vrf->vrf_id); |
d62a17ae | 641 | |
161e9ab7 | 642 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
643 | /* Do not send unsolicited messages to synchronous clients. */ |
644 | if (client->synchronous) | |
645 | continue; | |
646 | ||
d62a17ae | 647 | /* Need to add if the client is interested in the new VRF. */ |
648 | client->ifadd_cnt++; | |
649 | zsend_interface_add(client, ifp); | |
650 | zsend_interface_addresses(client, ifp); | |
651 | } | |
c8e264b6 | 652 | } |
653 | ||
fe257ae7 DS |
654 | int zebra_add_import_table_entry(struct zebra_vrf *zvrf, struct route_node *rn, |
655 | struct route_entry *re, const char *rmap_name) | |
7a4bb9c5 | 656 | { |
d62a17ae | 657 | struct route_entry *newre; |
658 | struct route_entry *same; | |
659 | struct prefix p; | |
0eb97b86 | 660 | struct nexthop_group *ng; |
b68885f9 | 661 | route_map_result_t ret = RMAP_PERMITMATCH; |
f8c175f3 | 662 | afi_t afi; |
d62a17ae | 663 | |
f8c175f3 | 664 | afi = family2afi(rn->p.family); |
d62a17ae | 665 | if (rmap_name) |
666 | ret = zebra_import_table_route_map_check( | |
0eb97b86 | 667 | afi, re->type, re->instance, &rn->p, |
c415d895 | 668 | re->nhe->nhg.nexthop, |
fe257ae7 | 669 | zvrf->vrf->vrf_id, re->tag, rmap_name); |
d62a17ae | 670 | |
b68885f9 | 671 | if (ret != RMAP_PERMITMATCH) { |
85c615ac | 672 | UNSET_FLAG(re->flags, ZEBRA_FLAG_SELECTED); |
fe257ae7 | 673 | zebra_del_import_table_entry(zvrf, rn, re); |
20796bc3 DS |
674 | return 0; |
675 | } | |
d62a17ae | 676 | |
f8c175f3 | 677 | prefix_copy(&p, &rn->p); |
d62a17ae | 678 | |
a2addae8 RW |
679 | RNODE_FOREACH_RE (rn, same) { |
680 | if (CHECK_FLAG(same->status, ROUTE_ENTRY_REMOVED)) | |
f8c175f3 | 681 | continue; |
20796bc3 | 682 | |
996c9314 | 683 | if (same->type == re->type && same->instance == re->instance |
f8c175f3 DS |
684 | && same->table == re->table |
685 | && same->type != ZEBRA_ROUTE_CONNECT) | |
686 | break; | |
687 | } | |
20796bc3 | 688 | |
e71c84ca DS |
689 | if (same) { |
690 | UNSET_FLAG(same->flags, ZEBRA_FLAG_SELECTED); | |
fe257ae7 | 691 | zebra_del_import_table_entry(zvrf, rn, same); |
e71c84ca | 692 | } |
f8c175f3 | 693 | |
996c9314 | 694 | newre = XCALLOC(MTYPE_RE, sizeof(struct route_entry)); |
5c4b6e57 DS |
695 | newre->type = ZEBRA_ROUTE_TABLE; |
696 | newre->distance = zebra_import_table_distance[afi][re->table]; | |
697 | newre->flags = re->flags; | |
698 | newre->metric = re->metric; | |
699 | newre->mtu = re->mtu; | |
317c6a10 | 700 | newre->table = zvrf->table_id; |
98572489 | 701 | newre->uptime = monotime(NULL); |
5c4b6e57 | 702 | newre->instance = re->table; |
5c4b6e57 | 703 | |
0eb97b86 | 704 | ng = nexthop_group_new(); |
c415d895 | 705 | copy_nexthops(&ng->nexthop, re->nhe->nhg.nexthop, NULL); |
0eb97b86 MS |
706 | |
707 | rib_add_multipath(afi, SAFI_UNICAST, &p, NULL, newre, ng); | |
5c4b6e57 | 708 | |
d62a17ae | 709 | return 0; |
7a4bb9c5 DS |
710 | } |
711 | ||
fe257ae7 DS |
712 | int zebra_del_import_table_entry(struct zebra_vrf *zvrf, struct route_node *rn, |
713 | struct route_entry *re) | |
7a4bb9c5 | 714 | { |
d62a17ae | 715 | struct prefix p; |
f8c175f3 | 716 | afi_t afi; |
7a4bb9c5 | 717 | |
f8c175f3 DS |
718 | afi = family2afi(rn->p.family); |
719 | prefix_copy(&p, &rn->p); | |
7a4bb9c5 | 720 | |
fe257ae7 | 721 | rib_delete(afi, SAFI_UNICAST, zvrf->vrf->vrf_id, ZEBRA_ROUTE_TABLE, |
c415d895 | 722 | re->table, re->flags, &p, NULL, re->nhe->nhg.nexthop, |
0eb97b86 | 723 | re->nhe_id, zvrf->table_id, re->metric, re->distance, |
3ceae22b | 724 | false); |
7a4bb9c5 | 725 | |
d62a17ae | 726 | return 0; |
7a4bb9c5 DS |
727 | } |
728 | ||
729 | /* Assuming no one calls this with the main routing table */ | |
fe257ae7 DS |
730 | int zebra_import_table(afi_t afi, vrf_id_t vrf_id, uint32_t table_id, |
731 | uint32_t distance, const char *rmap_name, int add) | |
7a4bb9c5 | 732 | { |
d62a17ae | 733 | struct route_table *table; |
734 | struct route_entry *re; | |
735 | struct route_node *rn; | |
fe257ae7 | 736 | struct zebra_vrf *zvrf = zebra_vrf_lookup_by_id(vrf_id); |
d62a17ae | 737 | |
738 | if (!is_zebra_valid_kernel_table(table_id) | |
c447ad08 | 739 | || (table_id == RT_TABLE_MAIN)) |
95f7965d | 740 | return -1; |
d62a17ae | 741 | |
742 | if (afi >= AFI_MAX) | |
95f7965d | 743 | return -1; |
d62a17ae | 744 | |
c7c0b007 SW |
745 | table = zebra_vrf_get_table_with_table_id(afi, SAFI_UNICAST, vrf_id, |
746 | table_id); | |
d62a17ae | 747 | if (table == NULL) { |
748 | return 0; | |
749 | } else if (IS_ZEBRA_DEBUG_RIB) { | |
750 | zlog_debug("%s routes from table %d", | |
751 | add ? "Importing" : "Unimporting", table_id); | |
7a4bb9c5 DS |
752 | } |
753 | ||
d62a17ae | 754 | if (add) { |
755 | if (rmap_name) | |
756 | zebra_add_import_table_route_map(afi, rmap_name, | |
757 | table_id); | |
758 | else { | |
759 | rmap_name = | |
760 | 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 | } | |
d62a17ae | 765 | } |
7a4bb9c5 | 766 | |
d62a17ae | 767 | zebra_import_table_used[afi][table_id] = 1; |
768 | zebra_import_table_distance[afi][table_id] = distance; | |
769 | } else { | |
770 | zebra_import_table_used[afi][table_id] = 0; | |
771 | zebra_import_table_distance[afi][table_id] = | |
772 | ZEBRA_TABLE_DISTANCE_DEFAULT; | |
773 | ||
774 | rmap_name = zebra_get_import_table_route_map(afi, table_id); | |
3660beec | 775 | if (rmap_name) { |
d62a17ae | 776 | zebra_del_import_table_route_map(afi, table_id); |
3660beec DS |
777 | rmap_name = NULL; |
778 | } | |
7a4bb9c5 | 779 | } |
7a4bb9c5 | 780 | |
d62a17ae | 781 | for (rn = route_top(table); rn; rn = route_next(rn)) { |
782 | /* For each entry in the non-default routing table, | |
783 | * add the entry in the main table | |
784 | */ | |
785 | if (!rn->info) | |
786 | continue; | |
787 | ||
a2addae8 | 788 | RNODE_FOREACH_RE (rn, re) { |
d62a17ae | 789 | if (CHECK_FLAG(re->status, ROUTE_ENTRY_REMOVED)) |
790 | continue; | |
791 | break; | |
7a4bb9c5 | 792 | } |
8902474b | 793 | |
d62a17ae | 794 | if (!re) |
795 | continue; | |
8902474b | 796 | |
d62a17ae | 797 | if (((afi == AFI_IP) && (rn->p.family == AF_INET)) |
798 | || ((afi == AFI_IP6) && (rn->p.family == AF_INET6))) { | |
799 | if (add) | |
fe257ae7 DS |
800 | zebra_add_import_table_entry(zvrf, rn, re, |
801 | rmap_name); | |
d62a17ae | 802 | else |
fe257ae7 | 803 | zebra_del_import_table_entry(zvrf, rn, re); |
d62a17ae | 804 | } |
805 | } | |
806 | return 0; | |
807 | } | |
808 | ||
fe257ae7 | 809 | int zebra_import_table_config(struct vty *vty, vrf_id_t vrf_id) |
d62a17ae | 810 | { |
811 | int i; | |
812 | afi_t afi; | |
813 | int write = 0; | |
814 | char afi_str[AFI_MAX][10] = {"", "ip", "ipv6", "ethernet"}; | |
815 | const char *rmap_name; | |
816 | ||
817 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
818 | for (i = 1; i < ZEBRA_KERNEL_TABLE_MAX; i++) { | |
fe257ae7 | 819 | if (!is_zebra_import_table_enabled(afi, vrf_id, i)) |
20796bc3 | 820 | continue; |
d62a17ae | 821 | |
20796bc3 DS |
822 | if (zebra_import_table_distance[afi][i] |
823 | != ZEBRA_TABLE_DISTANCE_DEFAULT) { | |
996c9314 | 824 | vty_out(vty, "%s import-table %d distance %d", |
20796bc3 DS |
825 | afi_str[afi], i, |
826 | zebra_import_table_distance[afi][i]); | |
827 | } else { | |
996c9314 LB |
828 | vty_out(vty, "%s import-table %d", afi_str[afi], |
829 | i); | |
d62a17ae | 830 | } |
20796bc3 DS |
831 | |
832 | rmap_name = zebra_get_import_table_route_map(afi, i); | |
833 | if (rmap_name) | |
996c9314 | 834 | vty_out(vty, " route-map %s", rmap_name); |
20796bc3 DS |
835 | |
836 | vty_out(vty, "\n"); | |
837 | write = 1; | |
d62a17ae | 838 | } |
7a4bb9c5 | 839 | } |
7a4bb9c5 | 840 | |
d62a17ae | 841 | return write; |
7a4bb9c5 | 842 | } |
8902474b | 843 | |
fe257ae7 DS |
844 | static void zebra_import_table_rm_update_vrf_afi(struct zebra_vrf *zvrf, |
845 | afi_t afi, int table_id, | |
846 | const char *rmap) | |
8902474b | 847 | { |
d62a17ae | 848 | struct route_table *table; |
849 | struct route_entry *re; | |
850 | struct route_node *rn; | |
851 | const char *rmap_name; | |
852 | ||
fe257ae7 DS |
853 | rmap_name = zebra_get_import_table_route_map(afi, table_id); |
854 | if ((!rmap_name) || (strcmp(rmap_name, rmap) != 0)) | |
855 | return; | |
d62a17ae | 856 | |
c7c0b007 SW |
857 | table = zebra_vrf_get_table_with_table_id(afi, SAFI_UNICAST, |
858 | zvrf->vrf->vrf_id, table_id); | |
fe257ae7 DS |
859 | if (!table) { |
860 | if (IS_ZEBRA_DEBUG_RIB_DETAILED) | |
861 | zlog_debug("%s: Table id=%d not found", __func__, | |
862 | table_id); | |
863 | return; | |
864 | } | |
865 | ||
866 | for (rn = route_top(table); rn; rn = route_next(rn)) { | |
867 | /* | |
868 | * For each entry in the non-default routing table, | |
869 | * add the entry in the main table | |
870 | */ | |
871 | if (!rn->info) | |
872 | continue; | |
873 | ||
874 | RNODE_FOREACH_RE (rn, re) { | |
875 | if (CHECK_FLAG(re->status, ROUTE_ENTRY_REMOVED)) | |
d5b8c216 | 876 | continue; |
fe257ae7 DS |
877 | break; |
878 | } | |
879 | ||
880 | if (!re) | |
881 | continue; | |
882 | ||
883 | if (((afi == AFI_IP) && (rn->p.family == AF_INET)) | |
884 | || ((afi == AFI_IP6) && (rn->p.family == AF_INET6))) | |
885 | zebra_add_import_table_entry(zvrf, rn, re, rmap_name); | |
886 | } | |
887 | ||
888 | return; | |
889 | } | |
890 | ||
891 | static void zebra_import_table_rm_update_vrf(struct zebra_vrf *zvrf, | |
892 | const char *rmap) | |
893 | { | |
894 | afi_t afi; | |
895 | int i; | |
896 | ||
897 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
898 | for (i = 1; i < ZEBRA_KERNEL_TABLE_MAX; i++) { | |
899 | if (!is_zebra_import_table_enabled( | |
900 | afi, zvrf->vrf->vrf_id, i)) | |
2c7ef20d | 901 | continue; |
2c7ef20d | 902 | |
fe257ae7 DS |
903 | zebra_import_table_rm_update_vrf_afi(zvrf, afi, i, |
904 | rmap); | |
d62a17ae | 905 | } |
8902474b | 906 | } |
fe257ae7 | 907 | } |
8902474b | 908 | |
fe257ae7 DS |
909 | void zebra_import_table_rm_update(const char *rmap) |
910 | { | |
911 | struct vrf *vrf; | |
912 | struct zebra_vrf *zvrf; | |
913 | ||
914 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) { | |
915 | zvrf = vrf->info; | |
916 | ||
917 | if (!zvrf) | |
918 | continue; | |
919 | ||
920 | zebra_import_table_rm_update_vrf(zvrf, rmap); | |
921 | } | |
8902474b | 922 | } |
16f1b9ee OD |
923 | |
924 | /* Interface parameters update */ | |
d62a17ae | 925 | void zebra_interface_parameters_update(struct interface *ifp) |
16f1b9ee | 926 | { |
d62a17ae | 927 | struct listnode *node, *nnode; |
928 | struct zserv *client; | |
16f1b9ee | 929 | |
d62a17ae | 930 | if (IS_ZEBRA_DEBUG_EVENT) |
096f7609 IR |
931 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_LINK_PARAMS %s vrf %s(%u)", |
932 | ifp->name, ifp->vrf->name, ifp->vrf->vrf_id); | |
16f1b9ee | 933 | |
17da84a4 KS |
934 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
935 | /* Do not send unsolicited messages to synchronous clients. */ | |
936 | if (client->synchronous) | |
937 | continue; | |
938 | ||
a8a20c4e | 939 | zsend_interface_link_params(client, ifp); |
17da84a4 | 940 | } |
16f1b9ee | 941 | } |