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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 | */ | |
179 | if (re->instance | |
180 | && redist_check_instance(&client->mi_redist[afi][re->type], | |
181 | re->instance)) | |
182 | return true; | |
183 | ||
184 | /* If redistribution is enabled for give route type. */ | |
185 | if (vrf_bitmap_check(client->redist[afi][re->type], re->vrf_id)) | |
186 | return true; | |
187 | ||
188 | return false; | |
189 | } | |
190 | ||
c41fc67b | 191 | /* Either advertise a route for redistribution to registered clients or */ |
192 | /* withdraw redistribution if add cannot be done for client */ | |
86391e56 | 193 | void redistribute_update(const struct prefix *p, const struct prefix *src_p, |
40f321c0 MS |
194 | const struct route_entry *re, |
195 | const struct route_entry *prev_re) | |
718e3744 | 196 | { |
d62a17ae | 197 | struct listnode *node, *nnode; |
198 | struct zserv *client; | |
d62a17ae | 199 | int afi; |
d62a17ae | 200 | |
2dbe669b | 201 | if (IS_ZEBRA_DEBUG_RIB) |
d62a17ae | 202 | zlog_debug( |
1945fb7a DS |
203 | "(%u:%u):%pFX(%u): Redist update re %p (%s), old %p (%s)", |
204 | re->vrf_id, re->table, p, re->instance, re, | |
2dbe669b | 205 | zebra_route_string(re->type), prev_re, |
2da33d6b | 206 | prev_re ? zebra_route_string(prev_re->type) : "None"); |
d62a17ae | 207 | |
208 | afi = family2afi(p->family); | |
209 | if (!afi) { | |
e914ccbe | 210 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, |
1d5453d6 | 211 | "%s: Unknown AFI/SAFI prefix received", __func__); |
d62a17ae | 212 | return; |
c41fc67b | 213 | } |
79becec8 | 214 | if (!zebra_check_addr(p)) { |
215 | if (IS_ZEBRA_DEBUG_RIB) | |
2dbe669b | 216 | zlog_debug("Redist update filter prefix %pFX", p); |
79becec8 | 217 | return; |
218 | } | |
219 | ||
d62a17ae | 220 | |
161e9ab7 | 221 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
14fe366e | 222 | if (zebra_redistribute_check(re, client, p, afi)) { |
14a4d9d0 | 223 | if (IS_ZEBRA_DEBUG_RIB) { |
3e178809 | 224 | zlog_debug( |
2dbe669b | 225 | "%s: client %s %pFX(%u:%u), type=%d, distance=%d, metric=%d", |
c2c02b76 | 226 | __func__, |
2dbe669b | 227 | zebra_route_string(client->proto), p, |
c2c02b76 DS |
228 | re->vrf_id, re->table, re->type, |
229 | re->distance, re->metric); | |
3e178809 | 230 | } |
74489921 RW |
231 | zsend_redistribute_route(ZEBRA_REDISTRIBUTE_ROUTE_ADD, |
232 | client, p, src_p, re); | |
14fe366e | 233 | } else if (zebra_redistribute_check(prev_re, client, p, afi)) |
74489921 RW |
234 | zsend_redistribute_route(ZEBRA_REDISTRIBUTE_ROUTE_DEL, |
235 | client, p, src_p, prev_re); | |
c41fc67b | 236 | } |
718e3744 | 237 | } |
238 | ||
40f321c0 MS |
239 | /* |
240 | * During a route delete, where 'new_re' is NULL, redist a delete to all | |
241 | * clients registered for the type of 'old_re'. | |
242 | * During a route update, redist a delete to any clients who will not see | |
243 | * an update when the new route is installed. There are cases when a client | |
244 | * may have seen a redist for 'old_re', but will not see | |
245 | * the redist for 'new_re'. | |
246 | */ | |
86391e56 | 247 | void redistribute_delete(const struct prefix *p, const struct prefix *src_p, |
40f321c0 MS |
248 | const struct route_entry *old_re, |
249 | const struct route_entry *new_re) | |
718e3744 | 250 | { |
d62a17ae | 251 | struct listnode *node, *nnode; |
252 | struct zserv *client; | |
d62a17ae | 253 | int afi; |
40f321c0 MS |
254 | vrf_id_t vrfid; |
255 | ||
256 | if (old_re) | |
257 | vrfid = old_re->vrf_id; | |
258 | else if (new_re) | |
259 | vrfid = new_re->vrf_id; | |
260 | else | |
261 | return; | |
d62a17ae | 262 | |
263 | if (IS_ZEBRA_DEBUG_RIB) { | |
2dbe669b DA |
264 | zlog_debug("%u:%pFX: Redist del: re %p (%s), new re %p (%s)", |
265 | vrfid, p, old_re, | |
266 | old_re ? zebra_route_string(old_re->type) : "None", | |
267 | new_re, | |
268 | new_re ? zebra_route_string(new_re->type) : "None"); | |
d62a17ae | 269 | } |
270 | ||
d62a17ae | 271 | afi = family2afi(p->family); |
272 | if (!afi) { | |
e914ccbe | 273 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, |
1d5453d6 | 274 | "%s: Unknown AFI/SAFI prefix received", |
40f321c0 | 275 | __func__); |
d62a17ae | 276 | return; |
277 | } | |
278 | ||
40f321c0 | 279 | /* Skip invalid (e.g. linklocal) prefix */ |
79becec8 | 280 | if (!zebra_check_addr(p)) { |
40f321c0 MS |
281 | if (IS_ZEBRA_DEBUG_RIB) { |
282 | zlog_debug( | |
2dbe669b DA |
283 | "%u:%pFX: Redist del old: skipping invalid prefix", |
284 | vrfid, p); | |
40f321c0 | 285 | } |
79becec8 | 286 | return; |
287 | } | |
288 | ||
161e9ab7 | 289 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
290 | /* Do not send unsolicited messages to synchronous clients. */ |
291 | if (client->synchronous) | |
292 | continue; | |
14fe366e S |
293 | /* |
294 | * Skip this client if it will receive an update for the | |
295 | * 'new' re | |
296 | */ | |
297 | if (zebra_redistribute_check(new_re, client, p, afi)) | |
298 | continue; | |
40f321c0 MS |
299 | |
300 | /* Send a delete for the 'old' re to any subscribed client. */ | |
14fe366e | 301 | if (zebra_redistribute_check(old_re, client, p, afi)) |
74489921 | 302 | zsend_redistribute_route(ZEBRA_REDISTRIBUTE_ROUTE_DEL, |
40f321c0 | 303 | client, p, src_p, old_re); |
1eb8ef25 | 304 | } |
718e3744 | 305 | } |
306 | ||
14fe366e | 307 | |
89f4e507 | 308 | void zebra_redistribute_add(ZAPI_HANDLER_ARGS) |
718e3744 | 309 | { |
ec93aa12 DS |
310 | afi_t afi = 0; |
311 | int type = 0; | |
d7c0a89a | 312 | unsigned short instance; |
d62a17ae | 313 | |
1002497a QY |
314 | STREAM_GETC(msg, afi); |
315 | STREAM_GETC(msg, type); | |
316 | STREAM_GETW(msg, instance); | |
d62a17ae | 317 | |
1b6e575b PZ |
318 | if (IS_ZEBRA_DEBUG_EVENT) |
319 | zlog_debug( | |
c479e756 | 320 | "%s: client proto %s afi=%d, wants %s, vrf %s(%u), instance=%d", |
1b6e575b | 321 | __func__, zebra_route_string(client->proto), afi, |
c479e756 DS |
322 | zebra_route_string(type), VRF_LOGNAME(zvrf->vrf), |
323 | zvrf_id(zvrf), instance); | |
1b6e575b | 324 | |
e1fa928d | 325 | if (afi == 0 || afi >= AFI_MAX) { |
e914ccbe | 326 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, |
15569c58 | 327 | "%s: Specified afi %d does not exist", __func__, afi); |
d62a17ae | 328 | return; |
ec93aa12 DS |
329 | } |
330 | ||
331 | if (type == 0 || type >= ZEBRA_ROUTE_MAX) { | |
9df414fe | 332 | zlog_debug("%s: Specified Route Type %d does not exist", |
15569c58 | 333 | __func__, type); |
ec93aa12 DS |
334 | return; |
335 | } | |
d62a17ae | 336 | |
337 | if (instance) { | |
338 | if (!redist_check_instance(&client->mi_redist[afi][type], | |
339 | instance)) { | |
340 | redist_add_instance(&client->mi_redist[afi][type], | |
341 | instance); | |
342 | zebra_redistribute(client, type, instance, | |
343 | zvrf_id(zvrf), afi); | |
344 | } | |
345 | } else { | |
d9083050 IR |
346 | if (!vrf_bitmap_check(client->redist[afi][type], |
347 | zvrf_id(zvrf))) { | |
348 | if (IS_ZEBRA_DEBUG_EVENT) | |
349 | zlog_debug( | |
350 | "%s: setting vrf %s(%u) redist bitmap", | |
351 | __func__, VRF_LOGNAME(zvrf->vrf), | |
352 | zvrf_id(zvrf)); | |
353 | vrf_bitmap_set(client->redist[afi][type], | |
354 | zvrf_id(zvrf)); | |
355 | zebra_redistribute(client, type, 0, zvrf_id(zvrf), afi); | |
356 | } | |
4e1cadf0 | 357 | } |
ec93aa12 DS |
358 | |
359 | stream_failure: | |
360 | return; | |
ebf08631 | 361 | } |
718e3744 | 362 | |
89f4e507 | 363 | void zebra_redistribute_delete(ZAPI_HANDLER_ARGS) |
718e3744 | 364 | { |
ec93aa12 DS |
365 | afi_t afi = 0; |
366 | int type = 0; | |
d7c0a89a | 367 | unsigned short instance; |
d62a17ae | 368 | |
1002497a QY |
369 | STREAM_GETC(msg, afi); |
370 | STREAM_GETC(msg, type); | |
371 | STREAM_GETW(msg, instance); | |
d62a17ae | 372 | |
67da9573 EDP |
373 | if (IS_ZEBRA_DEBUG_EVENT) |
374 | zlog_debug( | |
375 | "%s: client proto %s afi=%d, no longer wants %s, vrf %s(%u), instance=%d", | |
376 | __func__, zebra_route_string(client->proto), afi, | |
377 | zebra_route_string(type), VRF_LOGNAME(zvrf->vrf), | |
378 | zvrf_id(zvrf), instance); | |
379 | ||
380 | ||
e1fa928d | 381 | if (afi == 0 || afi >= AFI_MAX) { |
e914ccbe | 382 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, |
15569c58 | 383 | "%s: Specified afi %d does not exist", __func__, afi); |
d62a17ae | 384 | return; |
ec93aa12 DS |
385 | } |
386 | ||
387 | if (type == 0 || type >= ZEBRA_ROUTE_MAX) { | |
9df414fe | 388 | zlog_debug("%s: Specified Route Type %d does not exist", |
15569c58 | 389 | __func__, type); |
ec93aa12 DS |
390 | return; |
391 | } | |
d62a17ae | 392 | |
393 | /* | |
394 | * NOTE: no need to withdraw the previously advertised routes. The | |
395 | * clients | |
396 | * themselves should keep track of the received routes from zebra and | |
397 | * withdraw them when necessary. | |
398 | */ | |
399 | if (instance) | |
400 | redist_del_instance(&client->mi_redist[afi][type], instance); | |
401 | else | |
402 | vrf_bitmap_unset(client->redist[afi][type], zvrf_id(zvrf)); | |
ec93aa12 DS |
403 | |
404 | stream_failure: | |
405 | return; | |
ebf08631 | 406 | } |
718e3744 | 407 | |
89f4e507 | 408 | void zebra_redistribute_default_add(ZAPI_HANDLER_ARGS) |
718e3744 | 409 | { |
49db7a7b RW |
410 | afi_t afi = 0; |
411 | ||
412 | STREAM_GETC(msg, afi); | |
413 | ||
414 | if (afi == 0 || afi >= AFI_MAX) { | |
415 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, | |
15569c58 | 416 | "%s: Specified afi %u does not exist", __func__, afi); |
49db7a7b RW |
417 | return; |
418 | } | |
419 | ||
420 | vrf_bitmap_set(client->redist_default[afi], zvrf_id(zvrf)); | |
d62a17ae | 421 | zebra_redistribute_default(client, zvrf_id(zvrf)); |
49db7a7b RW |
422 | |
423 | stream_failure: | |
424 | return; | |
d62a17ae | 425 | } |
718e3744 | 426 | |
89f4e507 | 427 | void zebra_redistribute_default_delete(ZAPI_HANDLER_ARGS) |
718e3744 | 428 | { |
49db7a7b RW |
429 | afi_t afi = 0; |
430 | ||
431 | STREAM_GETC(msg, afi); | |
432 | ||
433 | if (afi == 0 || afi >= AFI_MAX) { | |
434 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, | |
15569c58 | 435 | "%s: Specified afi %u does not exist", __func__, afi); |
49db7a7b RW |
436 | return; |
437 | } | |
438 | ||
439 | vrf_bitmap_unset(client->redist_default[afi], zvrf_id(zvrf)); | |
440 | ||
441 | stream_failure: | |
442 | return; | |
d62a17ae | 443 | } |
718e3744 | 444 | |
445 | /* Interface up information. */ | |
d62a17ae | 446 | void zebra_interface_up_update(struct interface *ifp) |
718e3744 | 447 | { |
d62a17ae | 448 | struct listnode *node, *nnode; |
449 | struct zserv *client; | |
450 | ||
451 | if (IS_ZEBRA_DEBUG_EVENT) | |
096f7609 IR |
452 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_UP %s vrf %s(%u)", |
453 | ifp->name, ifp->vrf->name, ifp->vrf->vrf_id); | |
d62a17ae | 454 | |
455 | if (ifp->ptm_status || !ifp->ptm_enable) { | |
161e9ab7 | 456 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, |
a8a20c4e | 457 | client)) { |
17da84a4 KS |
458 | /* Do not send unsolicited messages to synchronous |
459 | * clients. | |
460 | */ | |
461 | if (client->synchronous) | |
462 | continue; | |
463 | ||
a8a20c4e DS |
464 | zsend_interface_update(ZEBRA_INTERFACE_UP, |
465 | client, ifp); | |
466 | zsend_interface_link_params(client, ifp); | |
467 | } | |
16f1b9ee | 468 | } |
718e3744 | 469 | } |
470 | ||
471 | /* Interface down information. */ | |
d62a17ae | 472 | void zebra_interface_down_update(struct interface *ifp) |
718e3744 | 473 | { |
d62a17ae | 474 | struct listnode *node, *nnode; |
475 | struct zserv *client; | |
718e3744 | 476 | |
d62a17ae | 477 | if (IS_ZEBRA_DEBUG_EVENT) |
096f7609 IR |
478 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_DOWN %s vrf %s(%u)", |
479 | ifp->name, ifp->vrf->name, ifp->vrf->vrf_id); | |
718e3744 | 480 | |
161e9ab7 | 481 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
482 | /* Do not send unsolicited messages to synchronous clients. */ |
483 | if (client->synchronous) | |
484 | continue; | |
485 | ||
d62a17ae | 486 | zsend_interface_update(ZEBRA_INTERFACE_DOWN, client, ifp); |
487 | } | |
718e3744 | 488 | } |
489 | ||
490 | /* Interface information update. */ | |
d62a17ae | 491 | void zebra_interface_add_update(struct interface *ifp) |
718e3744 | 492 | { |
d62a17ae | 493 | struct listnode *node, *nnode; |
494 | struct zserv *client; | |
495 | ||
496 | if (IS_ZEBRA_DEBUG_EVENT) | |
096f7609 IR |
497 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_ADD %s vrf %s(%u)", |
498 | ifp->name, ifp->vrf->name, ifp->vrf->vrf_id); | |
d62a17ae | 499 | |
a8a20c4e | 500 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
501 | /* Do not send unsolicited messages to synchronous clients. */ |
502 | if (client->synchronous) | |
503 | continue; | |
504 | ||
a8a20c4e DS |
505 | client->ifadd_cnt++; |
506 | zsend_interface_add(client, ifp); | |
507 | zsend_interface_link_params(client, ifp); | |
508 | } | |
718e3744 | 509 | } |
510 | ||
d62a17ae | 511 | void zebra_interface_delete_update(struct interface *ifp) |
718e3744 | 512 | { |
d62a17ae | 513 | struct listnode *node, *nnode; |
514 | struct zserv *client; | |
718e3744 | 515 | |
d62a17ae | 516 | if (IS_ZEBRA_DEBUG_EVENT) |
096f7609 IR |
517 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_DELETE %s vrf %s(%u)", |
518 | ifp->name, ifp->vrf->name, ifp->vrf->vrf_id); | |
718e3744 | 519 | |
161e9ab7 | 520 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
521 | /* Do not send unsolicited messages to synchronous clients. */ |
522 | if (client->synchronous) | |
523 | continue; | |
524 | ||
d62a17ae | 525 | client->ifdel_cnt++; |
526 | zsend_interface_delete(client, ifp); | |
527 | } | |
718e3744 | 528 | } |
529 | ||
530 | /* Interface address addition. */ | |
d62a17ae | 531 | void zebra_interface_address_add_update(struct interface *ifp, |
532 | struct connected *ifc) | |
718e3744 | 533 | { |
d62a17ae | 534 | struct listnode *node, *nnode; |
535 | struct zserv *client; | |
536 | struct prefix *p; | |
537 | ||
538 | if (IS_ZEBRA_DEBUG_EVENT) { | |
d62a17ae | 539 | p = ifc->address; |
2dbe669b | 540 | zlog_debug( |
096f7609 IR |
541 | "MESSAGE: ZEBRA_INTERFACE_ADDRESS_ADD %pFX on %s vrf %s(%u)", |
542 | p, ifp->name, ifp->vrf->name, ifp->vrf->vrf_id); | |
d62a17ae | 543 | } |
544 | ||
545 | if (!CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) | |
9df414fe | 546 | flog_warn( |
e914ccbe | 547 | EC_ZEBRA_ADVERTISING_UNUSABLE_ADDR, |
ad6f7449 | 548 | "advertising address to clients that is not yet usable."); |
d62a17ae | 549 | |
1a98c087 MK |
550 | zebra_vxlan_add_del_gw_macip(ifp, ifc->address, 1); |
551 | ||
d62a17ae | 552 | router_id_add_address(ifc); |
553 | ||
17da84a4 KS |
554 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
555 | /* Do not send unsolicited messages to synchronous clients. */ | |
556 | if (client->synchronous) | |
557 | continue; | |
558 | ||
d62a17ae | 559 | if (CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) { |
560 | client->connected_rt_add_cnt++; | |
561 | zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_ADD, | |
562 | client, ifp, ifc); | |
563 | } | |
17da84a4 | 564 | } |
718e3744 | 565 | } |
566 | ||
567 | /* Interface address deletion. */ | |
d62a17ae | 568 | void zebra_interface_address_delete_update(struct interface *ifp, |
569 | struct connected *ifc) | |
718e3744 | 570 | { |
d62a17ae | 571 | struct listnode *node, *nnode; |
572 | struct zserv *client; | |
573 | struct prefix *p; | |
574 | ||
575 | if (IS_ZEBRA_DEBUG_EVENT) { | |
d62a17ae | 576 | p = ifc->address; |
2dbe669b | 577 | zlog_debug( |
096f7609 IR |
578 | "MESSAGE: ZEBRA_INTERFACE_ADDRESS_DELETE %pFX on %s vrf %s(%u)", |
579 | p, ifp->name, ifp->vrf->name, ifp->vrf->vrf_id); | |
d62a17ae | 580 | } |
581 | ||
1a98c087 MK |
582 | zebra_vxlan_add_del_gw_macip(ifp, ifc->address, 0); |
583 | ||
d62a17ae | 584 | router_id_del_address(ifc); |
585 | ||
17da84a4 KS |
586 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
587 | /* Do not send unsolicited messages to synchronous clients. */ | |
588 | if (client->synchronous) | |
589 | continue; | |
590 | ||
d62a17ae | 591 | if (CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) { |
592 | client->connected_rt_del_cnt++; | |
593 | zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_DELETE, | |
594 | client, ifp, ifc); | |
595 | } | |
17da84a4 | 596 | } |
718e3744 | 597 | } |
d5a5c8f0 | 598 | |
c8e264b6 | 599 | /* Interface VRF change. May need to delete from clients not interested in |
600 | * the new VRF. Note that this function is invoked *prior* to the VRF change. | |
601 | */ | |
d62a17ae | 602 | void zebra_interface_vrf_update_del(struct interface *ifp, vrf_id_t new_vrf_id) |
c8e264b6 | 603 | { |
d62a17ae | 604 | struct listnode *node, *nnode; |
605 | struct zserv *client; | |
606 | ||
607 | if (IS_ZEBRA_DEBUG_EVENT) | |
608 | zlog_debug( | |
609 | "MESSAGE: ZEBRA_INTERFACE_VRF_UPDATE/DEL %s VRF Id %u -> %u", | |
096f7609 | 610 | ifp->name, ifp->vrf->vrf_id, new_vrf_id); |
d62a17ae | 611 | |
161e9ab7 | 612 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
613 | /* Do not send unsolicited messages to synchronous clients. */ |
614 | if (client->synchronous) | |
615 | continue; | |
616 | ||
d62a17ae | 617 | /* Need to delete if the client is not interested in the new |
618 | * VRF. */ | |
619 | zsend_interface_update(ZEBRA_INTERFACE_DOWN, client, ifp); | |
620 | client->ifdel_cnt++; | |
621 | zsend_interface_delete(client, ifp); | |
622 | zsend_interface_vrf_update(client, ifp, new_vrf_id); | |
623 | } | |
c8e264b6 | 624 | } |
625 | ||
626 | /* Interface VRF change. This function is invoked *post* VRF change and sends an | |
627 | * add to clients who are interested in the new VRF but not in the old VRF. | |
628 | */ | |
d62a17ae | 629 | void zebra_interface_vrf_update_add(struct interface *ifp, vrf_id_t old_vrf_id) |
c8e264b6 | 630 | { |
d62a17ae | 631 | struct listnode *node, *nnode; |
632 | struct zserv *client; | |
633 | ||
634 | if (IS_ZEBRA_DEBUG_EVENT) | |
635 | zlog_debug( | |
636 | "MESSAGE: ZEBRA_INTERFACE_VRF_UPDATE/ADD %s VRF Id %u -> %u", | |
096f7609 | 637 | ifp->name, old_vrf_id, ifp->vrf->vrf_id); |
d62a17ae | 638 | |
161e9ab7 | 639 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
640 | /* Do not send unsolicited messages to synchronous clients. */ |
641 | if (client->synchronous) | |
642 | continue; | |
643 | ||
d62a17ae | 644 | /* Need to add if the client is interested in the new VRF. */ |
645 | client->ifadd_cnt++; | |
646 | zsend_interface_add(client, ifp); | |
647 | zsend_interface_addresses(client, ifp); | |
648 | } | |
c8e264b6 | 649 | } |
650 | ||
fe257ae7 DS |
651 | int zebra_add_import_table_entry(struct zebra_vrf *zvrf, struct route_node *rn, |
652 | struct route_entry *re, const char *rmap_name) | |
7a4bb9c5 | 653 | { |
d62a17ae | 654 | struct route_entry *newre; |
655 | struct route_entry *same; | |
656 | struct prefix p; | |
0eb97b86 | 657 | struct nexthop_group *ng; |
b68885f9 | 658 | route_map_result_t ret = RMAP_PERMITMATCH; |
f8c175f3 | 659 | afi_t afi; |
d62a17ae | 660 | |
f8c175f3 | 661 | afi = family2afi(rn->p.family); |
d62a17ae | 662 | if (rmap_name) |
663 | ret = zebra_import_table_route_map_check( | |
0eb97b86 | 664 | afi, re->type, re->instance, &rn->p, |
c415d895 | 665 | re->nhe->nhg.nexthop, |
fe257ae7 | 666 | zvrf->vrf->vrf_id, re->tag, rmap_name); |
d62a17ae | 667 | |
b68885f9 | 668 | if (ret != RMAP_PERMITMATCH) { |
85c615ac | 669 | UNSET_FLAG(re->flags, ZEBRA_FLAG_SELECTED); |
fe257ae7 | 670 | zebra_del_import_table_entry(zvrf, rn, re); |
20796bc3 DS |
671 | return 0; |
672 | } | |
d62a17ae | 673 | |
f8c175f3 | 674 | prefix_copy(&p, &rn->p); |
d62a17ae | 675 | |
a2addae8 RW |
676 | RNODE_FOREACH_RE (rn, same) { |
677 | if (CHECK_FLAG(same->status, ROUTE_ENTRY_REMOVED)) | |
f8c175f3 | 678 | continue; |
20796bc3 | 679 | |
996c9314 | 680 | if (same->type == re->type && same->instance == re->instance |
f8c175f3 DS |
681 | && same->table == re->table |
682 | && same->type != ZEBRA_ROUTE_CONNECT) | |
683 | break; | |
684 | } | |
20796bc3 | 685 | |
e71c84ca DS |
686 | if (same) { |
687 | UNSET_FLAG(same->flags, ZEBRA_FLAG_SELECTED); | |
fe257ae7 | 688 | zebra_del_import_table_entry(zvrf, rn, same); |
e71c84ca | 689 | } |
f8c175f3 | 690 | |
996c9314 | 691 | newre = XCALLOC(MTYPE_RE, sizeof(struct route_entry)); |
5c4b6e57 DS |
692 | newre->type = ZEBRA_ROUTE_TABLE; |
693 | newre->distance = zebra_import_table_distance[afi][re->table]; | |
694 | newre->flags = re->flags; | |
695 | newre->metric = re->metric; | |
696 | newre->mtu = re->mtu; | |
317c6a10 | 697 | newre->table = zvrf->table_id; |
98572489 | 698 | newre->uptime = monotime(NULL); |
5c4b6e57 | 699 | newre->instance = re->table; |
5c4b6e57 | 700 | |
0eb97b86 | 701 | ng = nexthop_group_new(); |
c415d895 | 702 | copy_nexthops(&ng->nexthop, re->nhe->nhg.nexthop, NULL); |
0eb97b86 MS |
703 | |
704 | rib_add_multipath(afi, SAFI_UNICAST, &p, NULL, newre, ng); | |
5c4b6e57 | 705 | |
d62a17ae | 706 | return 0; |
7a4bb9c5 DS |
707 | } |
708 | ||
fe257ae7 DS |
709 | int zebra_del_import_table_entry(struct zebra_vrf *zvrf, struct route_node *rn, |
710 | struct route_entry *re) | |
7a4bb9c5 | 711 | { |
d62a17ae | 712 | struct prefix p; |
f8c175f3 | 713 | afi_t afi; |
7a4bb9c5 | 714 | |
f8c175f3 DS |
715 | afi = family2afi(rn->p.family); |
716 | prefix_copy(&p, &rn->p); | |
7a4bb9c5 | 717 | |
fe257ae7 | 718 | rib_delete(afi, SAFI_UNICAST, zvrf->vrf->vrf_id, ZEBRA_ROUTE_TABLE, |
c415d895 | 719 | re->table, re->flags, &p, NULL, re->nhe->nhg.nexthop, |
0eb97b86 | 720 | re->nhe_id, zvrf->table_id, re->metric, re->distance, |
3ceae22b | 721 | false); |
7a4bb9c5 | 722 | |
d62a17ae | 723 | return 0; |
7a4bb9c5 DS |
724 | } |
725 | ||
726 | /* Assuming no one calls this with the main routing table */ | |
fe257ae7 DS |
727 | int zebra_import_table(afi_t afi, vrf_id_t vrf_id, uint32_t table_id, |
728 | uint32_t distance, const char *rmap_name, int add) | |
7a4bb9c5 | 729 | { |
d62a17ae | 730 | struct route_table *table; |
731 | struct route_entry *re; | |
732 | struct route_node *rn; | |
fe257ae7 | 733 | struct zebra_vrf *zvrf = zebra_vrf_lookup_by_id(vrf_id); |
d62a17ae | 734 | |
735 | if (!is_zebra_valid_kernel_table(table_id) | |
c447ad08 | 736 | || (table_id == RT_TABLE_MAIN)) |
95f7965d | 737 | return -1; |
d62a17ae | 738 | |
739 | if (afi >= AFI_MAX) | |
95f7965d | 740 | return -1; |
d62a17ae | 741 | |
c7c0b007 SW |
742 | table = zebra_vrf_get_table_with_table_id(afi, SAFI_UNICAST, vrf_id, |
743 | table_id); | |
d62a17ae | 744 | if (table == NULL) { |
745 | return 0; | |
746 | } else if (IS_ZEBRA_DEBUG_RIB) { | |
747 | zlog_debug("%s routes from table %d", | |
748 | add ? "Importing" : "Unimporting", table_id); | |
7a4bb9c5 DS |
749 | } |
750 | ||
d62a17ae | 751 | if (add) { |
752 | if (rmap_name) | |
753 | zebra_add_import_table_route_map(afi, rmap_name, | |
754 | table_id); | |
755 | else { | |
756 | rmap_name = | |
757 | zebra_get_import_table_route_map(afi, table_id); | |
3660beec | 758 | if (rmap_name) { |
d62a17ae | 759 | zebra_del_import_table_route_map(afi, table_id); |
3660beec DS |
760 | rmap_name = NULL; |
761 | } | |
d62a17ae | 762 | } |
7a4bb9c5 | 763 | |
d62a17ae | 764 | zebra_import_table_used[afi][table_id] = 1; |
765 | zebra_import_table_distance[afi][table_id] = distance; | |
766 | } else { | |
767 | zebra_import_table_used[afi][table_id] = 0; | |
768 | zebra_import_table_distance[afi][table_id] = | |
769 | ZEBRA_TABLE_DISTANCE_DEFAULT; | |
770 | ||
771 | rmap_name = zebra_get_import_table_route_map(afi, table_id); | |
3660beec | 772 | if (rmap_name) { |
d62a17ae | 773 | zebra_del_import_table_route_map(afi, table_id); |
3660beec DS |
774 | rmap_name = NULL; |
775 | } | |
7a4bb9c5 | 776 | } |
7a4bb9c5 | 777 | |
d62a17ae | 778 | for (rn = route_top(table); rn; rn = route_next(rn)) { |
779 | /* For each entry in the non-default routing table, | |
780 | * add the entry in the main table | |
781 | */ | |
782 | if (!rn->info) | |
783 | continue; | |
784 | ||
a2addae8 | 785 | RNODE_FOREACH_RE (rn, re) { |
d62a17ae | 786 | if (CHECK_FLAG(re->status, ROUTE_ENTRY_REMOVED)) |
787 | continue; | |
788 | break; | |
7a4bb9c5 | 789 | } |
8902474b | 790 | |
d62a17ae | 791 | if (!re) |
792 | continue; | |
8902474b | 793 | |
d62a17ae | 794 | if (((afi == AFI_IP) && (rn->p.family == AF_INET)) |
795 | || ((afi == AFI_IP6) && (rn->p.family == AF_INET6))) { | |
796 | if (add) | |
fe257ae7 DS |
797 | zebra_add_import_table_entry(zvrf, rn, re, |
798 | rmap_name); | |
d62a17ae | 799 | else |
fe257ae7 | 800 | zebra_del_import_table_entry(zvrf, rn, re); |
d62a17ae | 801 | } |
802 | } | |
803 | return 0; | |
804 | } | |
805 | ||
fe257ae7 | 806 | int zebra_import_table_config(struct vty *vty, vrf_id_t vrf_id) |
d62a17ae | 807 | { |
808 | int i; | |
809 | afi_t afi; | |
810 | int write = 0; | |
811 | char afi_str[AFI_MAX][10] = {"", "ip", "ipv6", "ethernet"}; | |
812 | const char *rmap_name; | |
813 | ||
814 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
815 | for (i = 1; i < ZEBRA_KERNEL_TABLE_MAX; i++) { | |
fe257ae7 | 816 | if (!is_zebra_import_table_enabled(afi, vrf_id, i)) |
20796bc3 | 817 | continue; |
d62a17ae | 818 | |
20796bc3 DS |
819 | if (zebra_import_table_distance[afi][i] |
820 | != ZEBRA_TABLE_DISTANCE_DEFAULT) { | |
996c9314 | 821 | vty_out(vty, "%s import-table %d distance %d", |
20796bc3 DS |
822 | afi_str[afi], i, |
823 | zebra_import_table_distance[afi][i]); | |
824 | } else { | |
996c9314 LB |
825 | vty_out(vty, "%s import-table %d", afi_str[afi], |
826 | i); | |
d62a17ae | 827 | } |
20796bc3 DS |
828 | |
829 | rmap_name = zebra_get_import_table_route_map(afi, i); | |
830 | if (rmap_name) | |
996c9314 | 831 | vty_out(vty, " route-map %s", rmap_name); |
20796bc3 DS |
832 | |
833 | vty_out(vty, "\n"); | |
834 | write = 1; | |
d62a17ae | 835 | } |
7a4bb9c5 | 836 | } |
7a4bb9c5 | 837 | |
d62a17ae | 838 | return write; |
7a4bb9c5 | 839 | } |
8902474b | 840 | |
fe257ae7 DS |
841 | static void zebra_import_table_rm_update_vrf_afi(struct zebra_vrf *zvrf, |
842 | afi_t afi, int table_id, | |
843 | const char *rmap) | |
8902474b | 844 | { |
d62a17ae | 845 | struct route_table *table; |
846 | struct route_entry *re; | |
847 | struct route_node *rn; | |
848 | const char *rmap_name; | |
849 | ||
fe257ae7 DS |
850 | rmap_name = zebra_get_import_table_route_map(afi, table_id); |
851 | if ((!rmap_name) || (strcmp(rmap_name, rmap) != 0)) | |
852 | return; | |
d62a17ae | 853 | |
c7c0b007 SW |
854 | table = zebra_vrf_get_table_with_table_id(afi, SAFI_UNICAST, |
855 | zvrf->vrf->vrf_id, table_id); | |
fe257ae7 DS |
856 | if (!table) { |
857 | if (IS_ZEBRA_DEBUG_RIB_DETAILED) | |
858 | zlog_debug("%s: Table id=%d not found", __func__, | |
859 | table_id); | |
860 | return; | |
861 | } | |
862 | ||
863 | for (rn = route_top(table); rn; rn = route_next(rn)) { | |
864 | /* | |
865 | * For each entry in the non-default routing table, | |
866 | * add the entry in the main table | |
867 | */ | |
868 | if (!rn->info) | |
869 | continue; | |
870 | ||
871 | RNODE_FOREACH_RE (rn, re) { | |
872 | if (CHECK_FLAG(re->status, ROUTE_ENTRY_REMOVED)) | |
d5b8c216 | 873 | continue; |
fe257ae7 DS |
874 | break; |
875 | } | |
876 | ||
877 | if (!re) | |
878 | continue; | |
879 | ||
880 | if (((afi == AFI_IP) && (rn->p.family == AF_INET)) | |
881 | || ((afi == AFI_IP6) && (rn->p.family == AF_INET6))) | |
882 | zebra_add_import_table_entry(zvrf, rn, re, rmap_name); | |
883 | } | |
884 | ||
885 | return; | |
886 | } | |
887 | ||
888 | static void zebra_import_table_rm_update_vrf(struct zebra_vrf *zvrf, | |
889 | const char *rmap) | |
890 | { | |
891 | afi_t afi; | |
892 | int i; | |
893 | ||
894 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
895 | for (i = 1; i < ZEBRA_KERNEL_TABLE_MAX; i++) { | |
896 | if (!is_zebra_import_table_enabled( | |
897 | afi, zvrf->vrf->vrf_id, i)) | |
2c7ef20d | 898 | continue; |
2c7ef20d | 899 | |
fe257ae7 DS |
900 | zebra_import_table_rm_update_vrf_afi(zvrf, afi, i, |
901 | rmap); | |
d62a17ae | 902 | } |
8902474b | 903 | } |
fe257ae7 | 904 | } |
8902474b | 905 | |
fe257ae7 DS |
906 | void zebra_import_table_rm_update(const char *rmap) |
907 | { | |
908 | struct vrf *vrf; | |
909 | struct zebra_vrf *zvrf; | |
910 | ||
911 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) { | |
912 | zvrf = vrf->info; | |
913 | ||
914 | if (!zvrf) | |
915 | continue; | |
916 | ||
917 | zebra_import_table_rm_update_vrf(zvrf, rmap); | |
918 | } | |
8902474b | 919 | } |
16f1b9ee OD |
920 | |
921 | /* Interface parameters update */ | |
d62a17ae | 922 | void zebra_interface_parameters_update(struct interface *ifp) |
16f1b9ee | 923 | { |
d62a17ae | 924 | struct listnode *node, *nnode; |
925 | struct zserv *client; | |
16f1b9ee | 926 | |
d62a17ae | 927 | if (IS_ZEBRA_DEBUG_EVENT) |
096f7609 IR |
928 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_LINK_PARAMS %s vrf %s(%u)", |
929 | ifp->name, ifp->vrf->name, ifp->vrf->vrf_id); | |
16f1b9ee | 930 | |
17da84a4 KS |
931 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
932 | /* Do not send unsolicited messages to synchronous clients. */ | |
933 | if (client->synchronous) | |
934 | continue; | |
935 | ||
a8a20c4e | 936 | zsend_interface_link_params(client, ifp); |
17da84a4 | 937 | } |
16f1b9ee | 938 | } |