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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" |
4a1ab8e4 | 44 | #include "zebra/zebra_memory.h" |
1a98c087 | 45 | #include "zebra/zebra_vxlan.h" |
364fed6b | 46 | #include "zebra/zebra_errors.h" |
718e3744 | 47 | |
244c1cdc DS |
48 | #define ZEBRA_PTM_SUPPORT |
49 | ||
7a4bb9c5 DS |
50 | /* array holding redistribute info about table redistribution */ |
51 | /* bit AFI is set if that AFI is redistributing routes from this table */ | |
032bfaaf | 52 | static int zebra_import_table_used[AFI_MAX][ZEBRA_KERNEL_TABLE_MAX]; |
d7c0a89a | 53 | static uint32_t zebra_import_table_distance[AFI_MAX][ZEBRA_KERNEL_TABLE_MAX]; |
7a4bb9c5 | 54 | |
fe257ae7 | 55 | int is_zebra_import_table_enabled(afi_t afi, vrf_id_t vrf_id, uint32_t table_id) |
7a4bb9c5 | 56 | { |
1e9f448f DS |
57 | /* |
58 | * Make sure that what we are called with actualy makes sense | |
59 | */ | |
60 | if (afi == AFI_MAX) | |
61 | return 0; | |
62 | ||
95a29032 DS |
63 | if (is_zebra_valid_kernel_table(table_id) && |
64 | table_id < ZEBRA_KERNEL_TABLE_MAX) | |
d62a17ae | 65 | return zebra_import_table_used[afi][table_id]; |
66 | return 0; | |
7a4bb9c5 DS |
67 | } |
68 | ||
d62a17ae | 69 | static void zebra_redistribute_default(struct zserv *client, vrf_id_t vrf_id) |
718e3744 | 70 | { |
d62a17ae | 71 | int afi; |
72 | struct prefix p; | |
73 | struct route_table *table; | |
74 | struct route_node *rn; | |
75 | struct route_entry *newre; | |
76 | ||
77 | for (afi = AFI_IP; afi <= AFI_IP6; afi++) { | |
29a35332 DS |
78 | |
79 | if (!vrf_bitmap_check(client->redist_default[afi], vrf_id)) | |
80 | continue; | |
81 | ||
d62a17ae | 82 | /* Lookup table. */ |
83 | table = zebra_vrf_table(afi, SAFI_UNICAST, vrf_id); | |
84 | if (!table) | |
85 | continue; | |
86 | ||
87 | /* Lookup default route. */ | |
88 | memset(&p, 0, sizeof(p)); | |
89 | p.family = afi2family(afi); | |
90 | rn = route_node_lookup(table, &p); | |
91 | if (!rn) | |
92 | continue; | |
93 | ||
a2addae8 | 94 | RNODE_FOREACH_RE (rn, newre) { |
407c87a6 DS |
95 | if (CHECK_FLAG(newre->flags, ZEBRA_FLAG_SELECTED) |
96 | && newre->distance != DISTANCE_INFINITY) | |
97 | zsend_redistribute_route( | |
a2addae8 RW |
98 | ZEBRA_REDISTRIBUTE_ROUTE_ADD, client, |
99 | &rn->p, NULL, newre); | |
407c87a6 | 100 | } |
d62a17ae | 101 | |
102 | route_unlock_node(rn); | |
103 | } | |
718e3744 | 104 | } |
105 | ||
106 | /* Redistribute routes. */ | |
d7c0a89a QY |
107 | static void zebra_redistribute(struct zserv *client, int type, |
108 | unsigned short instance, vrf_id_t vrf_id, | |
109 | int afi) | |
718e3744 | 110 | { |
d62a17ae | 111 | struct route_entry *newre; |
112 | struct route_table *table; | |
113 | struct route_node *rn; | |
114 | ||
115 | table = zebra_vrf_table(afi, SAFI_UNICAST, vrf_id); | |
116 | if (!table) | |
117 | return; | |
118 | ||
f0c4b8e1 | 119 | for (rn = route_top(table); rn; rn = srcdest_route_next(rn)) |
a2addae8 | 120 | RNODE_FOREACH_RE (rn, newre) { |
86391e56 | 121 | const struct prefix *dst_p, *src_p; |
3e178809 | 122 | |
d62a17ae | 123 | srcdest_rnode_prefixes(rn, &dst_p, &src_p); |
124 | ||
14a4d9d0 | 125 | if (IS_ZEBRA_DEBUG_RIB) |
d62a17ae | 126 | zlog_debug( |
2dbe669b | 127 | "%s: client %s %pFX(%u) checking: selected=%d, type=%d, distance=%d, metric=%d zebra_check_addr=%d", |
d62a17ae | 128 | __func__, |
1b6e575b | 129 | zebra_route_string(client->proto), |
2dbe669b DA |
130 | dst_p, vrf_id, |
131 | CHECK_FLAG(newre->flags, | |
132 | ZEBRA_FLAG_SELECTED), | |
d62a17ae | 133 | newre->type, newre->distance, |
3e178809 | 134 | newre->metric, zebra_check_addr(dst_p)); |
d62a17ae | 135 | |
136 | if (!CHECK_FLAG(newre->flags, ZEBRA_FLAG_SELECTED)) | |
137 | continue; | |
138 | if ((type != ZEBRA_ROUTE_ALL | |
139 | && (newre->type != type | |
140 | || newre->instance != instance))) | |
141 | continue; | |
142 | if (newre->distance == DISTANCE_INFINITY) | |
143 | continue; | |
144 | if (!zebra_check_addr(dst_p)) | |
145 | continue; | |
146 | ||
74489921 RW |
147 | zsend_redistribute_route(ZEBRA_REDISTRIBUTE_ROUTE_ADD, |
148 | client, dst_p, src_p, newre); | |
d62a17ae | 149 | } |
718e3744 | 150 | } |
151 | ||
14fe366e S |
152 | /* |
153 | * Function to check if prefix is candidate for | |
154 | * redistribute. | |
155 | */ | |
156 | static bool zebra_redistribute_check(const struct route_entry *re, | |
157 | struct zserv *client, | |
158 | const struct prefix *p, int afi) | |
159 | { | |
160 | /* Process only if there is valid re */ | |
161 | if (!re) | |
162 | return false; | |
163 | ||
164 | /* If default route and redistributed */ | |
165 | if (is_default_prefix(p) | |
166 | && vrf_bitmap_check(client->redist_default[afi], re->vrf_id)) | |
167 | return true; | |
168 | ||
169 | /* If redistribute in enabled for zebra route all */ | |
170 | if (vrf_bitmap_check(client->redist[afi][ZEBRA_ROUTE_ALL], re->vrf_id)) | |
171 | return true; | |
172 | ||
173 | /* | |
174 | * If multi-instance then check for route | |
175 | * redistribution for given instance. | |
176 | */ | |
177 | if (re->instance | |
178 | && redist_check_instance(&client->mi_redist[afi][re->type], | |
179 | re->instance)) | |
180 | return true; | |
181 | ||
182 | /* If redistribution is enabled for give route type. */ | |
183 | if (vrf_bitmap_check(client->redist[afi][re->type], re->vrf_id)) | |
184 | return true; | |
185 | ||
186 | return false; | |
187 | } | |
188 | ||
c41fc67b | 189 | /* Either advertise a route for redistribution to registered clients or */ |
190 | /* withdraw redistribution if add cannot be done for client */ | |
86391e56 | 191 | void redistribute_update(const struct prefix *p, const struct prefix *src_p, |
40f321c0 MS |
192 | const struct route_entry *re, |
193 | const struct route_entry *prev_re) | |
718e3744 | 194 | { |
d62a17ae | 195 | struct listnode *node, *nnode; |
196 | struct zserv *client; | |
d62a17ae | 197 | int afi; |
d62a17ae | 198 | |
2dbe669b | 199 | if (IS_ZEBRA_DEBUG_RIB) |
d62a17ae | 200 | zlog_debug( |
2dbe669b DA |
201 | "(%u:%u):%pFX: Redist update re %p (%s), old %p (%s)", |
202 | re->vrf_id, re->table, p, re, | |
203 | zebra_route_string(re->type), prev_re, | |
2da33d6b | 204 | prev_re ? zebra_route_string(prev_re->type) : "None"); |
d62a17ae | 205 | |
206 | afi = family2afi(p->family); | |
207 | if (!afi) { | |
e914ccbe | 208 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, |
0767b4f3 | 209 | "%s: Unknown AFI/SAFI prefix received\n", __func__); |
d62a17ae | 210 | return; |
c41fc67b | 211 | } |
79becec8 | 212 | if (!zebra_check_addr(p)) { |
213 | if (IS_ZEBRA_DEBUG_RIB) | |
2dbe669b | 214 | zlog_debug("Redist update filter prefix %pFX", p); |
79becec8 | 215 | return; |
216 | } | |
217 | ||
d62a17ae | 218 | |
161e9ab7 | 219 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
14fe366e | 220 | if (zebra_redistribute_check(re, client, p, afi)) { |
14a4d9d0 | 221 | if (IS_ZEBRA_DEBUG_RIB) { |
3e178809 | 222 | zlog_debug( |
2dbe669b | 223 | "%s: client %s %pFX(%u:%u), type=%d, distance=%d, metric=%d", |
c2c02b76 | 224 | __func__, |
2dbe669b | 225 | zebra_route_string(client->proto), p, |
c2c02b76 DS |
226 | re->vrf_id, re->table, re->type, |
227 | re->distance, re->metric); | |
3e178809 | 228 | } |
74489921 RW |
229 | zsend_redistribute_route(ZEBRA_REDISTRIBUTE_ROUTE_ADD, |
230 | client, p, src_p, re); | |
14fe366e | 231 | } else if (zebra_redistribute_check(prev_re, client, p, afi)) |
74489921 RW |
232 | zsend_redistribute_route(ZEBRA_REDISTRIBUTE_ROUTE_DEL, |
233 | client, p, src_p, prev_re); | |
c41fc67b | 234 | } |
718e3744 | 235 | } |
236 | ||
40f321c0 MS |
237 | /* |
238 | * During a route delete, where 'new_re' is NULL, redist a delete to all | |
239 | * clients registered for the type of 'old_re'. | |
240 | * During a route update, redist a delete to any clients who will not see | |
241 | * an update when the new route is installed. There are cases when a client | |
242 | * may have seen a redist for 'old_re', but will not see | |
243 | * the redist for 'new_re'. | |
244 | */ | |
86391e56 | 245 | void redistribute_delete(const struct prefix *p, const struct prefix *src_p, |
40f321c0 MS |
246 | const struct route_entry *old_re, |
247 | const struct route_entry *new_re) | |
718e3744 | 248 | { |
d62a17ae | 249 | struct listnode *node, *nnode; |
250 | struct zserv *client; | |
d62a17ae | 251 | int afi; |
40f321c0 MS |
252 | vrf_id_t vrfid; |
253 | ||
254 | if (old_re) | |
255 | vrfid = old_re->vrf_id; | |
256 | else if (new_re) | |
257 | vrfid = new_re->vrf_id; | |
258 | else | |
259 | return; | |
d62a17ae | 260 | |
261 | if (IS_ZEBRA_DEBUG_RIB) { | |
2dbe669b DA |
262 | zlog_debug("%u:%pFX: Redist del: re %p (%s), new re %p (%s)", |
263 | vrfid, p, old_re, | |
264 | old_re ? zebra_route_string(old_re->type) : "None", | |
265 | new_re, | |
266 | new_re ? zebra_route_string(new_re->type) : "None"); | |
d62a17ae | 267 | } |
268 | ||
269 | /* Add DISTANCE_INFINITY check. */ | |
0e965c67 DS |
270 | if (old_re && (old_re->distance == DISTANCE_INFINITY)) { |
271 | if (IS_ZEBRA_DEBUG_RIB) | |
d6951e5e | 272 | zlog_debug(" Skipping due to Infinite Distance"); |
d62a17ae | 273 | return; |
0e965c67 | 274 | } |
d62a17ae | 275 | |
276 | afi = family2afi(p->family); | |
277 | if (!afi) { | |
e914ccbe | 278 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, |
9df414fe | 279 | "%s: Unknown AFI/SAFI prefix received\n", |
40f321c0 | 280 | __func__); |
d62a17ae | 281 | return; |
282 | } | |
283 | ||
40f321c0 | 284 | /* Skip invalid (e.g. linklocal) prefix */ |
79becec8 | 285 | if (!zebra_check_addr(p)) { |
40f321c0 MS |
286 | if (IS_ZEBRA_DEBUG_RIB) { |
287 | zlog_debug( | |
2dbe669b DA |
288 | "%u:%pFX: Redist del old: skipping invalid prefix", |
289 | vrfid, p); | |
40f321c0 | 290 | } |
79becec8 | 291 | return; |
292 | } | |
293 | ||
161e9ab7 | 294 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
295 | /* Do not send unsolicited messages to synchronous clients. */ |
296 | if (client->synchronous) | |
297 | continue; | |
14fe366e S |
298 | /* |
299 | * Skip this client if it will receive an update for the | |
300 | * 'new' re | |
301 | */ | |
302 | if (zebra_redistribute_check(new_re, client, p, afi)) | |
303 | continue; | |
40f321c0 MS |
304 | |
305 | /* Send a delete for the 'old' re to any subscribed client. */ | |
14fe366e | 306 | if (zebra_redistribute_check(old_re, client, p, afi)) |
74489921 | 307 | zsend_redistribute_route(ZEBRA_REDISTRIBUTE_ROUTE_DEL, |
40f321c0 | 308 | client, p, src_p, old_re); |
1eb8ef25 | 309 | } |
718e3744 | 310 | } |
311 | ||
14fe366e | 312 | |
89f4e507 | 313 | void zebra_redistribute_add(ZAPI_HANDLER_ARGS) |
718e3744 | 314 | { |
ec93aa12 DS |
315 | afi_t afi = 0; |
316 | int type = 0; | |
d7c0a89a | 317 | unsigned short instance; |
d62a17ae | 318 | |
1002497a QY |
319 | STREAM_GETC(msg, afi); |
320 | STREAM_GETC(msg, type); | |
321 | STREAM_GETW(msg, instance); | |
d62a17ae | 322 | |
1b6e575b PZ |
323 | if (IS_ZEBRA_DEBUG_EVENT) |
324 | zlog_debug( | |
c479e756 | 325 | "%s: client proto %s afi=%d, wants %s, vrf %s(%u), instance=%d", |
1b6e575b | 326 | __func__, zebra_route_string(client->proto), afi, |
c479e756 DS |
327 | zebra_route_string(type), VRF_LOGNAME(zvrf->vrf), |
328 | zvrf_id(zvrf), instance); | |
1b6e575b | 329 | |
e1fa928d | 330 | if (afi == 0 || afi >= AFI_MAX) { |
e914ccbe | 331 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, |
15569c58 | 332 | "%s: Specified afi %d does not exist", __func__, afi); |
d62a17ae | 333 | return; |
ec93aa12 DS |
334 | } |
335 | ||
336 | if (type == 0 || type >= ZEBRA_ROUTE_MAX) { | |
9df414fe | 337 | zlog_debug("%s: Specified Route Type %d does not exist", |
15569c58 | 338 | __func__, type); |
ec93aa12 DS |
339 | return; |
340 | } | |
d62a17ae | 341 | |
342 | if (instance) { | |
343 | if (!redist_check_instance(&client->mi_redist[afi][type], | |
344 | instance)) { | |
345 | redist_add_instance(&client->mi_redist[afi][type], | |
346 | instance); | |
347 | zebra_redistribute(client, type, instance, | |
348 | zvrf_id(zvrf), afi); | |
349 | } | |
350 | } else { | |
351 | if (!vrf_bitmap_check(client->redist[afi][type], | |
352 | zvrf_id(zvrf))) { | |
1b6e575b | 353 | if (IS_ZEBRA_DEBUG_EVENT) |
c479e756 DS |
354 | zlog_debug( |
355 | "%s: setting vrf %s(%u) redist bitmap", | |
356 | __func__, VRF_LOGNAME(zvrf->vrf), | |
357 | zvrf_id(zvrf)); | |
d62a17ae | 358 | vrf_bitmap_set(client->redist[afi][type], |
359 | zvrf_id(zvrf)); | |
360 | zebra_redistribute(client, type, 0, zvrf_id(zvrf), afi); | |
361 | } | |
4e1cadf0 | 362 | } |
ec93aa12 DS |
363 | |
364 | stream_failure: | |
365 | return; | |
ebf08631 | 366 | } |
718e3744 | 367 | |
89f4e507 | 368 | void zebra_redistribute_delete(ZAPI_HANDLER_ARGS) |
718e3744 | 369 | { |
ec93aa12 DS |
370 | afi_t afi = 0; |
371 | int type = 0; | |
d7c0a89a | 372 | unsigned short instance; |
d62a17ae | 373 | |
1002497a QY |
374 | STREAM_GETC(msg, afi); |
375 | STREAM_GETC(msg, type); | |
376 | STREAM_GETW(msg, instance); | |
d62a17ae | 377 | |
e1fa928d | 378 | if (afi == 0 || afi >= AFI_MAX) { |
e914ccbe | 379 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, |
15569c58 | 380 | "%s: Specified afi %d does not exist", __func__, afi); |
d62a17ae | 381 | return; |
ec93aa12 DS |
382 | } |
383 | ||
384 | if (type == 0 || type >= ZEBRA_ROUTE_MAX) { | |
9df414fe | 385 | zlog_debug("%s: Specified Route Type %d does not exist", |
15569c58 | 386 | __func__, type); |
ec93aa12 DS |
387 | return; |
388 | } | |
d62a17ae | 389 | |
390 | /* | |
391 | * NOTE: no need to withdraw the previously advertised routes. The | |
392 | * clients | |
393 | * themselves should keep track of the received routes from zebra and | |
394 | * withdraw them when necessary. | |
395 | */ | |
396 | if (instance) | |
397 | redist_del_instance(&client->mi_redist[afi][type], instance); | |
398 | else | |
399 | vrf_bitmap_unset(client->redist[afi][type], zvrf_id(zvrf)); | |
ec93aa12 DS |
400 | |
401 | stream_failure: | |
402 | return; | |
ebf08631 | 403 | } |
718e3744 | 404 | |
89f4e507 | 405 | void zebra_redistribute_default_add(ZAPI_HANDLER_ARGS) |
718e3744 | 406 | { |
49db7a7b RW |
407 | afi_t afi = 0; |
408 | ||
409 | STREAM_GETC(msg, afi); | |
410 | ||
411 | if (afi == 0 || afi >= AFI_MAX) { | |
412 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, | |
15569c58 | 413 | "%s: Specified afi %u does not exist", __func__, afi); |
49db7a7b RW |
414 | return; |
415 | } | |
416 | ||
417 | vrf_bitmap_set(client->redist_default[afi], zvrf_id(zvrf)); | |
d62a17ae | 418 | zebra_redistribute_default(client, zvrf_id(zvrf)); |
49db7a7b RW |
419 | |
420 | stream_failure: | |
421 | return; | |
d62a17ae | 422 | } |
718e3744 | 423 | |
89f4e507 | 424 | void zebra_redistribute_default_delete(ZAPI_HANDLER_ARGS) |
718e3744 | 425 | { |
49db7a7b RW |
426 | afi_t afi = 0; |
427 | ||
428 | STREAM_GETC(msg, afi); | |
429 | ||
430 | if (afi == 0 || afi >= AFI_MAX) { | |
431 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, | |
15569c58 | 432 | "%s: Specified afi %u does not exist", __func__, afi); |
49db7a7b RW |
433 | return; |
434 | } | |
435 | ||
436 | vrf_bitmap_unset(client->redist_default[afi], zvrf_id(zvrf)); | |
437 | ||
438 | stream_failure: | |
439 | return; | |
d62a17ae | 440 | } |
718e3744 | 441 | |
442 | /* Interface up information. */ | |
d62a17ae | 443 | void zebra_interface_up_update(struct interface *ifp) |
718e3744 | 444 | { |
d62a17ae | 445 | struct listnode *node, *nnode; |
446 | struct zserv *client; | |
447 | ||
448 | if (IS_ZEBRA_DEBUG_EVENT) | |
38bbad1b | 449 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_UP %s(%u)", |
a36898e7 | 450 | ifp->name, ifp->vrf_id); |
d62a17ae | 451 | |
452 | if (ifp->ptm_status || !ifp->ptm_enable) { | |
161e9ab7 | 453 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, |
a8a20c4e | 454 | client)) { |
17da84a4 KS |
455 | /* Do not send unsolicited messages to synchronous |
456 | * clients. | |
457 | */ | |
458 | if (client->synchronous) | |
459 | continue; | |
460 | ||
a8a20c4e DS |
461 | zsend_interface_update(ZEBRA_INTERFACE_UP, |
462 | client, ifp); | |
463 | zsend_interface_link_params(client, ifp); | |
464 | } | |
16f1b9ee | 465 | } |
718e3744 | 466 | } |
467 | ||
468 | /* Interface down information. */ | |
d62a17ae | 469 | void zebra_interface_down_update(struct interface *ifp) |
718e3744 | 470 | { |
d62a17ae | 471 | struct listnode *node, *nnode; |
472 | struct zserv *client; | |
718e3744 | 473 | |
d62a17ae | 474 | if (IS_ZEBRA_DEBUG_EVENT) |
38bbad1b | 475 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_DOWN %s(%u)", |
a36898e7 | 476 | ifp->name, ifp->vrf_id); |
718e3744 | 477 | |
161e9ab7 | 478 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
479 | /* Do not send unsolicited messages to synchronous clients. */ |
480 | if (client->synchronous) | |
481 | continue; | |
482 | ||
d62a17ae | 483 | zsend_interface_update(ZEBRA_INTERFACE_DOWN, client, ifp); |
484 | } | |
718e3744 | 485 | } |
486 | ||
487 | /* Interface information update. */ | |
d62a17ae | 488 | void zebra_interface_add_update(struct interface *ifp) |
718e3744 | 489 | { |
d62a17ae | 490 | struct listnode *node, *nnode; |
491 | struct zserv *client; | |
492 | ||
493 | if (IS_ZEBRA_DEBUG_EVENT) | |
38bbad1b | 494 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_ADD %s(%u)", ifp->name, |
a36898e7 | 495 | ifp->vrf_id); |
d62a17ae | 496 | |
a8a20c4e | 497 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
498 | /* Do not send unsolicited messages to synchronous clients. */ |
499 | if (client->synchronous) | |
500 | continue; | |
501 | ||
a8a20c4e DS |
502 | client->ifadd_cnt++; |
503 | zsend_interface_add(client, ifp); | |
504 | zsend_interface_link_params(client, ifp); | |
505 | } | |
718e3744 | 506 | } |
507 | ||
d62a17ae | 508 | void zebra_interface_delete_update(struct interface *ifp) |
718e3744 | 509 | { |
d62a17ae | 510 | struct listnode *node, *nnode; |
511 | struct zserv *client; | |
718e3744 | 512 | |
d62a17ae | 513 | if (IS_ZEBRA_DEBUG_EVENT) |
38bbad1b | 514 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_DELETE %s(%u)", |
a36898e7 | 515 | ifp->name, ifp->vrf_id); |
718e3744 | 516 | |
161e9ab7 | 517 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
518 | /* Do not send unsolicited messages to synchronous clients. */ |
519 | if (client->synchronous) | |
520 | continue; | |
521 | ||
d62a17ae | 522 | client->ifdel_cnt++; |
523 | zsend_interface_delete(client, ifp); | |
524 | } | |
718e3744 | 525 | } |
526 | ||
527 | /* Interface address addition. */ | |
d62a17ae | 528 | void zebra_interface_address_add_update(struct interface *ifp, |
529 | struct connected *ifc) | |
718e3744 | 530 | { |
d62a17ae | 531 | struct listnode *node, *nnode; |
532 | struct zserv *client; | |
533 | struct prefix *p; | |
534 | ||
535 | if (IS_ZEBRA_DEBUG_EVENT) { | |
d62a17ae | 536 | p = ifc->address; |
2dbe669b DA |
537 | zlog_debug( |
538 | "MESSAGE: ZEBRA_INTERFACE_ADDRESS_ADD %pFX on %s(%u)", | |
539 | p, ifp->name, ifp->vrf_id); | |
d62a17ae | 540 | } |
541 | ||
542 | if (!CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) | |
9df414fe | 543 | flog_warn( |
e914ccbe | 544 | EC_ZEBRA_ADVERTISING_UNUSABLE_ADDR, |
d62a17ae | 545 | "WARNING: advertising address to clients that is not yet usable."); |
546 | ||
1a98c087 MK |
547 | zebra_vxlan_add_del_gw_macip(ifp, ifc->address, 1); |
548 | ||
d62a17ae | 549 | router_id_add_address(ifc); |
550 | ||
17da84a4 KS |
551 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
552 | /* Do not send unsolicited messages to synchronous clients. */ | |
553 | if (client->synchronous) | |
554 | continue; | |
555 | ||
d62a17ae | 556 | if (CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) { |
557 | client->connected_rt_add_cnt++; | |
558 | zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_ADD, | |
559 | client, ifp, ifc); | |
560 | } | |
17da84a4 | 561 | } |
718e3744 | 562 | } |
563 | ||
564 | /* Interface address deletion. */ | |
d62a17ae | 565 | void zebra_interface_address_delete_update(struct interface *ifp, |
566 | struct connected *ifc) | |
718e3744 | 567 | { |
d62a17ae | 568 | struct listnode *node, *nnode; |
569 | struct zserv *client; | |
570 | struct prefix *p; | |
571 | ||
572 | if (IS_ZEBRA_DEBUG_EVENT) { | |
d62a17ae | 573 | p = ifc->address; |
2dbe669b DA |
574 | zlog_debug( |
575 | "MESSAGE: ZEBRA_INTERFACE_ADDRESS_DELETE %pFX on %s(%u)", | |
576 | p, ifp->name, ifp->vrf_id); | |
d62a17ae | 577 | } |
578 | ||
1a98c087 MK |
579 | zebra_vxlan_add_del_gw_macip(ifp, ifc->address, 0); |
580 | ||
d62a17ae | 581 | router_id_del_address(ifc); |
582 | ||
17da84a4 KS |
583 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
584 | /* Do not send unsolicited messages to synchronous clients. */ | |
585 | if (client->synchronous) | |
586 | continue; | |
587 | ||
d62a17ae | 588 | if (CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) { |
589 | client->connected_rt_del_cnt++; | |
590 | zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_DELETE, | |
591 | client, ifp, ifc); | |
592 | } | |
17da84a4 | 593 | } |
718e3744 | 594 | } |
d5a5c8f0 | 595 | |
c8e264b6 | 596 | /* Interface VRF change. May need to delete from clients not interested in |
597 | * the new VRF. Note that this function is invoked *prior* to the VRF change. | |
598 | */ | |
d62a17ae | 599 | void zebra_interface_vrf_update_del(struct interface *ifp, vrf_id_t new_vrf_id) |
c8e264b6 | 600 | { |
d62a17ae | 601 | struct listnode *node, *nnode; |
602 | struct zserv *client; | |
603 | ||
604 | if (IS_ZEBRA_DEBUG_EVENT) | |
605 | zlog_debug( | |
606 | "MESSAGE: ZEBRA_INTERFACE_VRF_UPDATE/DEL %s VRF Id %u -> %u", | |
a36898e7 | 607 | ifp->name, ifp->vrf_id, new_vrf_id); |
d62a17ae | 608 | |
161e9ab7 | 609 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
610 | /* Do not send unsolicited messages to synchronous clients. */ |
611 | if (client->synchronous) | |
612 | continue; | |
613 | ||
d62a17ae | 614 | /* Need to delete if the client is not interested in the new |
615 | * VRF. */ | |
616 | zsend_interface_update(ZEBRA_INTERFACE_DOWN, client, ifp); | |
617 | client->ifdel_cnt++; | |
618 | zsend_interface_delete(client, ifp); | |
619 | zsend_interface_vrf_update(client, ifp, new_vrf_id); | |
620 | } | |
c8e264b6 | 621 | } |
622 | ||
623 | /* Interface VRF change. This function is invoked *post* VRF change and sends an | |
624 | * add to clients who are interested in the new VRF but not in the old VRF. | |
625 | */ | |
d62a17ae | 626 | void zebra_interface_vrf_update_add(struct interface *ifp, vrf_id_t old_vrf_id) |
c8e264b6 | 627 | { |
d62a17ae | 628 | struct listnode *node, *nnode; |
629 | struct zserv *client; | |
630 | ||
631 | if (IS_ZEBRA_DEBUG_EVENT) | |
632 | zlog_debug( | |
633 | "MESSAGE: ZEBRA_INTERFACE_VRF_UPDATE/ADD %s VRF Id %u -> %u", | |
a36898e7 | 634 | ifp->name, old_vrf_id, ifp->vrf_id); |
d62a17ae | 635 | |
161e9ab7 | 636 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
17da84a4 KS |
637 | /* Do not send unsolicited messages to synchronous clients. */ |
638 | if (client->synchronous) | |
639 | continue; | |
640 | ||
d62a17ae | 641 | /* Need to add if the client is interested in the new VRF. */ |
642 | client->ifadd_cnt++; | |
643 | zsend_interface_add(client, ifp); | |
644 | zsend_interface_addresses(client, ifp); | |
645 | } | |
c8e264b6 | 646 | } |
647 | ||
fe257ae7 DS |
648 | int zebra_add_import_table_entry(struct zebra_vrf *zvrf, struct route_node *rn, |
649 | struct route_entry *re, const char *rmap_name) | |
7a4bb9c5 | 650 | { |
d62a17ae | 651 | struct route_entry *newre; |
652 | struct route_entry *same; | |
653 | struct prefix p; | |
0eb97b86 | 654 | struct nexthop_group *ng; |
b68885f9 | 655 | route_map_result_t ret = RMAP_PERMITMATCH; |
f8c175f3 | 656 | afi_t afi; |
d62a17ae | 657 | |
f8c175f3 | 658 | afi = family2afi(rn->p.family); |
d62a17ae | 659 | if (rmap_name) |
660 | ret = zebra_import_table_route_map_check( | |
0eb97b86 | 661 | afi, re->type, re->instance, &rn->p, |
c415d895 | 662 | re->nhe->nhg.nexthop, |
fe257ae7 | 663 | zvrf->vrf->vrf_id, re->tag, rmap_name); |
d62a17ae | 664 | |
b68885f9 | 665 | if (ret != RMAP_PERMITMATCH) { |
85c615ac | 666 | UNSET_FLAG(re->flags, ZEBRA_FLAG_SELECTED); |
fe257ae7 | 667 | zebra_del_import_table_entry(zvrf, rn, re); |
20796bc3 DS |
668 | return 0; |
669 | } | |
d62a17ae | 670 | |
f8c175f3 | 671 | prefix_copy(&p, &rn->p); |
d62a17ae | 672 | |
a2addae8 RW |
673 | RNODE_FOREACH_RE (rn, same) { |
674 | if (CHECK_FLAG(same->status, ROUTE_ENTRY_REMOVED)) | |
f8c175f3 | 675 | continue; |
20796bc3 | 676 | |
996c9314 | 677 | if (same->type == re->type && same->instance == re->instance |
f8c175f3 DS |
678 | && same->table == re->table |
679 | && same->type != ZEBRA_ROUTE_CONNECT) | |
680 | break; | |
681 | } | |
20796bc3 | 682 | |
e71c84ca DS |
683 | if (same) { |
684 | UNSET_FLAG(same->flags, ZEBRA_FLAG_SELECTED); | |
fe257ae7 | 685 | zebra_del_import_table_entry(zvrf, rn, same); |
e71c84ca | 686 | } |
f8c175f3 | 687 | |
996c9314 | 688 | newre = XCALLOC(MTYPE_RE, sizeof(struct route_entry)); |
5c4b6e57 DS |
689 | newre->type = ZEBRA_ROUTE_TABLE; |
690 | newre->distance = zebra_import_table_distance[afi][re->table]; | |
691 | newre->flags = re->flags; | |
692 | newre->metric = re->metric; | |
693 | newre->mtu = re->mtu; | |
317c6a10 | 694 | newre->table = zvrf->table_id; |
98572489 | 695 | newre->uptime = monotime(NULL); |
5c4b6e57 | 696 | newre->instance = re->table; |
5c4b6e57 | 697 | |
0eb97b86 | 698 | ng = nexthop_group_new(); |
c415d895 | 699 | copy_nexthops(&ng->nexthop, re->nhe->nhg.nexthop, NULL); |
0eb97b86 MS |
700 | |
701 | rib_add_multipath(afi, SAFI_UNICAST, &p, NULL, newre, ng); | |
5c4b6e57 | 702 | |
d62a17ae | 703 | return 0; |
7a4bb9c5 DS |
704 | } |
705 | ||
fe257ae7 DS |
706 | int zebra_del_import_table_entry(struct zebra_vrf *zvrf, struct route_node *rn, |
707 | struct route_entry *re) | |
7a4bb9c5 | 708 | { |
d62a17ae | 709 | struct prefix p; |
f8c175f3 | 710 | afi_t afi; |
7a4bb9c5 | 711 | |
f8c175f3 DS |
712 | afi = family2afi(rn->p.family); |
713 | prefix_copy(&p, &rn->p); | |
7a4bb9c5 | 714 | |
fe257ae7 | 715 | rib_delete(afi, SAFI_UNICAST, zvrf->vrf->vrf_id, ZEBRA_ROUTE_TABLE, |
c415d895 | 716 | re->table, re->flags, &p, NULL, re->nhe->nhg.nexthop, |
0eb97b86 | 717 | re->nhe_id, zvrf->table_id, re->metric, re->distance, |
0aaa7228 | 718 | false, false); |
7a4bb9c5 | 719 | |
d62a17ae | 720 | return 0; |
7a4bb9c5 DS |
721 | } |
722 | ||
723 | /* Assuming no one calls this with the main routing table */ | |
fe257ae7 DS |
724 | int zebra_import_table(afi_t afi, vrf_id_t vrf_id, uint32_t table_id, |
725 | uint32_t distance, const char *rmap_name, int add) | |
7a4bb9c5 | 726 | { |
d62a17ae | 727 | struct route_table *table; |
728 | struct route_entry *re; | |
729 | struct route_node *rn; | |
fe257ae7 | 730 | struct zebra_vrf *zvrf = zebra_vrf_lookup_by_id(vrf_id); |
d62a17ae | 731 | |
732 | if (!is_zebra_valid_kernel_table(table_id) | |
c447ad08 | 733 | || (table_id == RT_TABLE_MAIN)) |
95f7965d | 734 | return -1; |
d62a17ae | 735 | |
736 | if (afi >= AFI_MAX) | |
95f7965d | 737 | return -1; |
d62a17ae | 738 | |
c7c0b007 SW |
739 | table = zebra_vrf_get_table_with_table_id(afi, SAFI_UNICAST, vrf_id, |
740 | table_id); | |
d62a17ae | 741 | if (table == NULL) { |
742 | return 0; | |
743 | } else if (IS_ZEBRA_DEBUG_RIB) { | |
744 | zlog_debug("%s routes from table %d", | |
745 | add ? "Importing" : "Unimporting", table_id); | |
7a4bb9c5 DS |
746 | } |
747 | ||
d62a17ae | 748 | if (add) { |
749 | if (rmap_name) | |
750 | zebra_add_import_table_route_map(afi, rmap_name, | |
751 | table_id); | |
752 | else { | |
753 | rmap_name = | |
754 | zebra_get_import_table_route_map(afi, table_id); | |
3660beec | 755 | if (rmap_name) { |
d62a17ae | 756 | zebra_del_import_table_route_map(afi, table_id); |
3660beec DS |
757 | rmap_name = NULL; |
758 | } | |
d62a17ae | 759 | } |
7a4bb9c5 | 760 | |
d62a17ae | 761 | zebra_import_table_used[afi][table_id] = 1; |
762 | zebra_import_table_distance[afi][table_id] = distance; | |
763 | } else { | |
764 | zebra_import_table_used[afi][table_id] = 0; | |
765 | zebra_import_table_distance[afi][table_id] = | |
766 | ZEBRA_TABLE_DISTANCE_DEFAULT; | |
767 | ||
768 | rmap_name = zebra_get_import_table_route_map(afi, table_id); | |
3660beec | 769 | if (rmap_name) { |
d62a17ae | 770 | zebra_del_import_table_route_map(afi, table_id); |
3660beec DS |
771 | rmap_name = NULL; |
772 | } | |
7a4bb9c5 | 773 | } |
7a4bb9c5 | 774 | |
d62a17ae | 775 | for (rn = route_top(table); rn; rn = route_next(rn)) { |
776 | /* For each entry in the non-default routing table, | |
777 | * add the entry in the main table | |
778 | */ | |
779 | if (!rn->info) | |
780 | continue; | |
781 | ||
a2addae8 | 782 | RNODE_FOREACH_RE (rn, re) { |
d62a17ae | 783 | if (CHECK_FLAG(re->status, ROUTE_ENTRY_REMOVED)) |
784 | continue; | |
785 | break; | |
7a4bb9c5 | 786 | } |
8902474b | 787 | |
d62a17ae | 788 | if (!re) |
789 | continue; | |
8902474b | 790 | |
d62a17ae | 791 | if (((afi == AFI_IP) && (rn->p.family == AF_INET)) |
792 | || ((afi == AFI_IP6) && (rn->p.family == AF_INET6))) { | |
793 | if (add) | |
fe257ae7 DS |
794 | zebra_add_import_table_entry(zvrf, rn, re, |
795 | rmap_name); | |
d62a17ae | 796 | else |
fe257ae7 | 797 | zebra_del_import_table_entry(zvrf, rn, re); |
d62a17ae | 798 | } |
799 | } | |
800 | return 0; | |
801 | } | |
802 | ||
fe257ae7 | 803 | int zebra_import_table_config(struct vty *vty, vrf_id_t vrf_id) |
d62a17ae | 804 | { |
805 | int i; | |
806 | afi_t afi; | |
807 | int write = 0; | |
808 | char afi_str[AFI_MAX][10] = {"", "ip", "ipv6", "ethernet"}; | |
809 | const char *rmap_name; | |
810 | ||
811 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
812 | for (i = 1; i < ZEBRA_KERNEL_TABLE_MAX; i++) { | |
fe257ae7 | 813 | if (!is_zebra_import_table_enabled(afi, vrf_id, i)) |
20796bc3 | 814 | continue; |
d62a17ae | 815 | |
20796bc3 DS |
816 | if (zebra_import_table_distance[afi][i] |
817 | != ZEBRA_TABLE_DISTANCE_DEFAULT) { | |
996c9314 | 818 | vty_out(vty, "%s import-table %d distance %d", |
20796bc3 DS |
819 | afi_str[afi], i, |
820 | zebra_import_table_distance[afi][i]); | |
821 | } else { | |
996c9314 LB |
822 | vty_out(vty, "%s import-table %d", afi_str[afi], |
823 | i); | |
d62a17ae | 824 | } |
20796bc3 DS |
825 | |
826 | rmap_name = zebra_get_import_table_route_map(afi, i); | |
827 | if (rmap_name) | |
996c9314 | 828 | vty_out(vty, " route-map %s", rmap_name); |
20796bc3 DS |
829 | |
830 | vty_out(vty, "\n"); | |
831 | write = 1; | |
d62a17ae | 832 | } |
7a4bb9c5 | 833 | } |
7a4bb9c5 | 834 | |
d62a17ae | 835 | return write; |
7a4bb9c5 | 836 | } |
8902474b | 837 | |
fe257ae7 DS |
838 | static void zebra_import_table_rm_update_vrf_afi(struct zebra_vrf *zvrf, |
839 | afi_t afi, int table_id, | |
840 | const char *rmap) | |
8902474b | 841 | { |
d62a17ae | 842 | struct route_table *table; |
843 | struct route_entry *re; | |
844 | struct route_node *rn; | |
845 | const char *rmap_name; | |
846 | ||
fe257ae7 DS |
847 | rmap_name = zebra_get_import_table_route_map(afi, table_id); |
848 | if ((!rmap_name) || (strcmp(rmap_name, rmap) != 0)) | |
849 | return; | |
d62a17ae | 850 | |
c7c0b007 SW |
851 | table = zebra_vrf_get_table_with_table_id(afi, SAFI_UNICAST, |
852 | zvrf->vrf->vrf_id, table_id); | |
fe257ae7 DS |
853 | if (!table) { |
854 | if (IS_ZEBRA_DEBUG_RIB_DETAILED) | |
855 | zlog_debug("%s: Table id=%d not found", __func__, | |
856 | table_id); | |
857 | return; | |
858 | } | |
859 | ||
860 | for (rn = route_top(table); rn; rn = route_next(rn)) { | |
861 | /* | |
862 | * For each entry in the non-default routing table, | |
863 | * add the entry in the main table | |
864 | */ | |
865 | if (!rn->info) | |
866 | continue; | |
867 | ||
868 | RNODE_FOREACH_RE (rn, re) { | |
869 | if (CHECK_FLAG(re->status, ROUTE_ENTRY_REMOVED)) | |
d5b8c216 | 870 | continue; |
fe257ae7 DS |
871 | break; |
872 | } | |
873 | ||
874 | if (!re) | |
875 | continue; | |
876 | ||
877 | if (((afi == AFI_IP) && (rn->p.family == AF_INET)) | |
878 | || ((afi == AFI_IP6) && (rn->p.family == AF_INET6))) | |
879 | zebra_add_import_table_entry(zvrf, rn, re, rmap_name); | |
880 | } | |
881 | ||
882 | return; | |
883 | } | |
884 | ||
885 | static void zebra_import_table_rm_update_vrf(struct zebra_vrf *zvrf, | |
886 | const char *rmap) | |
887 | { | |
888 | afi_t afi; | |
889 | int i; | |
890 | ||
891 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
892 | for (i = 1; i < ZEBRA_KERNEL_TABLE_MAX; i++) { | |
893 | if (!is_zebra_import_table_enabled( | |
894 | afi, zvrf->vrf->vrf_id, i)) | |
2c7ef20d | 895 | continue; |
2c7ef20d | 896 | |
fe257ae7 DS |
897 | zebra_import_table_rm_update_vrf_afi(zvrf, afi, i, |
898 | rmap); | |
d62a17ae | 899 | } |
8902474b | 900 | } |
fe257ae7 | 901 | } |
8902474b | 902 | |
fe257ae7 DS |
903 | void zebra_import_table_rm_update(const char *rmap) |
904 | { | |
905 | struct vrf *vrf; | |
906 | struct zebra_vrf *zvrf; | |
907 | ||
908 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) { | |
909 | zvrf = vrf->info; | |
910 | ||
911 | if (!zvrf) | |
912 | continue; | |
913 | ||
914 | zebra_import_table_rm_update_vrf(zvrf, rmap); | |
915 | } | |
8902474b | 916 | } |
16f1b9ee OD |
917 | |
918 | /* Interface parameters update */ | |
d62a17ae | 919 | void zebra_interface_parameters_update(struct interface *ifp) |
16f1b9ee | 920 | { |
d62a17ae | 921 | struct listnode *node, *nnode; |
922 | struct zserv *client; | |
16f1b9ee | 923 | |
d62a17ae | 924 | if (IS_ZEBRA_DEBUG_EVENT) |
38bbad1b | 925 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_LINK_PARAMS %s(%u)", |
a36898e7 | 926 | ifp->name, ifp->vrf_id); |
16f1b9ee | 927 | |
17da84a4 KS |
928 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
929 | /* Do not send unsolicited messages to synchronous clients. */ | |
930 | if (client->synchronous) | |
931 | continue; | |
932 | ||
a8a20c4e | 933 | zsend_interface_link_params(client, ifp); |
17da84a4 | 934 | } |
16f1b9ee | 935 | } |