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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++) { | |
78 | /* Lookup table. */ | |
79 | table = zebra_vrf_table(afi, SAFI_UNICAST, vrf_id); | |
80 | if (!table) | |
81 | continue; | |
82 | ||
83 | /* Lookup default route. */ | |
84 | memset(&p, 0, sizeof(p)); | |
85 | p.family = afi2family(afi); | |
86 | rn = route_node_lookup(table, &p); | |
87 | if (!rn) | |
88 | continue; | |
89 | ||
a2addae8 | 90 | RNODE_FOREACH_RE (rn, newre) { |
407c87a6 DS |
91 | if (CHECK_FLAG(newre->flags, ZEBRA_FLAG_SELECTED) |
92 | && newre->distance != DISTANCE_INFINITY) | |
93 | zsend_redistribute_route( | |
a2addae8 RW |
94 | ZEBRA_REDISTRIBUTE_ROUTE_ADD, client, |
95 | &rn->p, NULL, newre); | |
407c87a6 | 96 | } |
d62a17ae | 97 | |
98 | route_unlock_node(rn); | |
99 | } | |
718e3744 | 100 | } |
101 | ||
102 | /* Redistribute routes. */ | |
d7c0a89a QY |
103 | static void zebra_redistribute(struct zserv *client, int type, |
104 | unsigned short instance, vrf_id_t vrf_id, | |
105 | int afi) | |
718e3744 | 106 | { |
d62a17ae | 107 | struct route_entry *newre; |
108 | struct route_table *table; | |
109 | struct route_node *rn; | |
110 | ||
111 | table = zebra_vrf_table(afi, SAFI_UNICAST, vrf_id); | |
112 | if (!table) | |
113 | return; | |
114 | ||
f0c4b8e1 | 115 | for (rn = route_top(table); rn; rn = srcdest_route_next(rn)) |
a2addae8 | 116 | RNODE_FOREACH_RE (rn, newre) { |
86391e56 | 117 | const struct prefix *dst_p, *src_p; |
3e178809 DS |
118 | char buf[PREFIX_STRLEN]; |
119 | ||
d62a17ae | 120 | srcdest_rnode_prefixes(rn, &dst_p, &src_p); |
121 | ||
122 | if (IS_ZEBRA_DEBUG_EVENT) | |
123 | zlog_debug( | |
38bbad1b | 124 | "%s: client %s %s(%u) checking: selected=%d, type=%d, distance=%d, metric=%d zebra_check_addr=%d", |
d62a17ae | 125 | __func__, |
1b6e575b | 126 | zebra_route_string(client->proto), |
3e178809 | 127 | prefix2str(dst_p, buf, sizeof(buf)), |
1b6e575b PZ |
128 | vrf_id, CHECK_FLAG(newre->flags, |
129 | ZEBRA_FLAG_SELECTED), | |
d62a17ae | 130 | newre->type, newre->distance, |
3e178809 | 131 | newre->metric, zebra_check_addr(dst_p)); |
d62a17ae | 132 | |
133 | if (!CHECK_FLAG(newre->flags, ZEBRA_FLAG_SELECTED)) | |
134 | continue; | |
135 | if ((type != ZEBRA_ROUTE_ALL | |
136 | && (newre->type != type | |
137 | || newre->instance != instance))) | |
138 | continue; | |
139 | if (newre->distance == DISTANCE_INFINITY) | |
140 | continue; | |
141 | if (!zebra_check_addr(dst_p)) | |
142 | continue; | |
143 | ||
74489921 RW |
144 | zsend_redistribute_route(ZEBRA_REDISTRIBUTE_ROUTE_ADD, |
145 | client, dst_p, src_p, newre); | |
d62a17ae | 146 | } |
718e3744 | 147 | } |
148 | ||
c41fc67b | 149 | /* Either advertise a route for redistribution to registered clients or */ |
150 | /* withdraw redistribution if add cannot be done for client */ | |
86391e56 | 151 | void redistribute_update(const struct prefix *p, const struct prefix *src_p, |
40f321c0 MS |
152 | const struct route_entry *re, |
153 | const struct route_entry *prev_re) | |
718e3744 | 154 | { |
d62a17ae | 155 | struct listnode *node, *nnode; |
156 | struct zserv *client; | |
157 | int send_redistribute; | |
158 | int afi; | |
3e178809 | 159 | char buf[PREFIX_STRLEN]; |
d62a17ae | 160 | |
161 | if (IS_ZEBRA_DEBUG_RIB) { | |
d62a17ae | 162 | zlog_debug( |
2da33d6b | 163 | "%u:%s: Redist update re %p (%s), old %p (%s)", |
3e178809 | 164 | re->vrf_id, prefix2str(p, buf, sizeof(buf)), |
2da33d6b DS |
165 | re, zebra_route_string(re->type), prev_re, |
166 | prev_re ? zebra_route_string(prev_re->type) : "None"); | |
d62a17ae | 167 | } |
168 | ||
169 | afi = family2afi(p->family); | |
170 | if (!afi) { | |
e914ccbe | 171 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, |
9df414fe | 172 | "%s: Unknown AFI/SAFI prefix received\n", |
d62a17ae | 173 | __FUNCTION__); |
174 | return; | |
c41fc67b | 175 | } |
79becec8 | 176 | if (!zebra_check_addr(p)) { |
177 | if (IS_ZEBRA_DEBUG_RIB) | |
178 | zlog_debug("Redist update filter prefix %s", | |
179 | prefix2str(p, buf, sizeof(buf))); | |
180 | return; | |
181 | } | |
182 | ||
d62a17ae | 183 | |
161e9ab7 | 184 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
d62a17ae | 185 | send_redistribute = 0; |
186 | ||
f229873a | 187 | if (is_default_prefix(p) |
49db7a7b RW |
188 | && vrf_bitmap_check(client->redist_default[afi], |
189 | re->vrf_id)) | |
d62a17ae | 190 | send_redistribute = 1; |
191 | else if (vrf_bitmap_check(client->redist[afi][ZEBRA_ROUTE_ALL], | |
192 | re->vrf_id)) | |
193 | send_redistribute = 1; | |
194 | else if (re->instance | |
195 | && redist_check_instance( | |
196 | &client->mi_redist[afi][re->type], | |
197 | re->instance)) | |
198 | send_redistribute = 1; | |
199 | else if (vrf_bitmap_check(client->redist[afi][re->type], | |
200 | re->vrf_id)) | |
201 | send_redistribute = 1; | |
202 | ||
203 | if (send_redistribute) { | |
3e178809 DS |
204 | if (IS_ZEBRA_DEBUG_EVENT) { |
205 | zlog_debug( | |
38bbad1b | 206 | "%s: client %s %s(%u), type=%d, distance=%d, metric=%d", |
3e178809 DS |
207 | __func__, |
208 | zebra_route_string(client->proto), | |
209 | prefix2str(p, buf, sizeof(buf)), | |
210 | re->vrf_id, re->type, | |
211 | re->distance, re->metric); | |
212 | } | |
74489921 RW |
213 | zsend_redistribute_route(ZEBRA_REDISTRIBUTE_ROUTE_ADD, |
214 | client, p, src_p, re); | |
d62a17ae | 215 | } else if (prev_re |
216 | && ((re->instance | |
217 | && redist_check_instance( | |
218 | &client->mi_redist[afi] | |
219 | [prev_re->type], | |
220 | re->instance)) | |
221 | || vrf_bitmap_check( | |
222 | client->redist[afi][prev_re->type], | |
223 | re->vrf_id))) { | |
74489921 RW |
224 | zsend_redistribute_route(ZEBRA_REDISTRIBUTE_ROUTE_DEL, |
225 | client, p, src_p, prev_re); | |
d62a17ae | 226 | } |
c41fc67b | 227 | } |
718e3744 | 228 | } |
229 | ||
40f321c0 MS |
230 | /* |
231 | * During a route delete, where 'new_re' is NULL, redist a delete to all | |
232 | * clients registered for the type of 'old_re'. | |
233 | * During a route update, redist a delete to any clients who will not see | |
234 | * an update when the new route is installed. There are cases when a client | |
235 | * may have seen a redist for 'old_re', but will not see | |
236 | * the redist for 'new_re'. | |
237 | */ | |
86391e56 | 238 | void redistribute_delete(const struct prefix *p, const struct prefix *src_p, |
40f321c0 MS |
239 | const struct route_entry *old_re, |
240 | const struct route_entry *new_re) | |
718e3744 | 241 | { |
d62a17ae | 242 | struct listnode *node, *nnode; |
243 | struct zserv *client; | |
d62a17ae | 244 | int afi; |
40f321c0 MS |
245 | char buf[PREFIX_STRLEN]; |
246 | vrf_id_t vrfid; | |
247 | ||
248 | if (old_re) | |
249 | vrfid = old_re->vrf_id; | |
250 | else if (new_re) | |
251 | vrfid = new_re->vrf_id; | |
252 | else | |
253 | return; | |
d62a17ae | 254 | |
255 | if (IS_ZEBRA_DEBUG_RIB) { | |
40f321c0 MS |
256 | zlog_debug( |
257 | "%u:%s: Redist del: re %p (%s), new re %p (%s)", | |
258 | vrfid, prefix2str(p, buf, sizeof(buf)), | |
259 | old_re, | |
260 | old_re ? zebra_route_string(old_re->type) : "None", | |
261 | new_re, | |
262 | new_re ? zebra_route_string(new_re->type) : "None"); | |
d62a17ae | 263 | } |
264 | ||
265 | /* Add DISTANCE_INFINITY check. */ | |
40f321c0 | 266 | if (old_re && (old_re->distance == DISTANCE_INFINITY)) |
d62a17ae | 267 | return; |
268 | ||
269 | afi = family2afi(p->family); | |
270 | if (!afi) { | |
e914ccbe | 271 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, |
9df414fe | 272 | "%s: Unknown AFI/SAFI prefix received\n", |
40f321c0 | 273 | __func__); |
d62a17ae | 274 | return; |
275 | } | |
276 | ||
40f321c0 | 277 | /* Skip invalid (e.g. linklocal) prefix */ |
79becec8 | 278 | if (!zebra_check_addr(p)) { |
40f321c0 MS |
279 | if (IS_ZEBRA_DEBUG_RIB) { |
280 | zlog_debug( | |
281 | "%u:%s: Redist del old: skipping invalid prefix", | |
282 | vrfid, prefix2str(p, buf, sizeof(buf))); | |
283 | } | |
79becec8 | 284 | return; |
285 | } | |
286 | ||
161e9ab7 | 287 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
40f321c0 MS |
288 | if (new_re) { |
289 | /* Skip this client if it will receive an update for the | |
290 | * 'new' re | |
291 | */ | |
292 | if (is_default_prefix(p) | |
293 | && vrf_bitmap_check(client->redist_default[afi], | |
294 | new_re->vrf_id)) | |
295 | continue; | |
296 | else if (vrf_bitmap_check( | |
297 | client->redist[afi][ZEBRA_ROUTE_ALL], | |
298 | new_re->vrf_id)) | |
299 | continue; | |
300 | else if (new_re->instance | |
301 | && redist_check_instance( | |
302 | &client->mi_redist[afi][new_re->type], | |
303 | new_re->instance)) | |
304 | continue; | |
305 | else if (vrf_bitmap_check( | |
306 | client->redist[afi][new_re->type], | |
307 | new_re->vrf_id)) | |
308 | continue; | |
309 | } | |
310 | ||
311 | /* Send a delete for the 'old' re to any subscribed client. */ | |
312 | if (old_re | |
313 | && ((old_re->instance | |
314 | && redist_check_instance( | |
315 | &client->mi_redist[afi] | |
316 | [old_re->type], | |
317 | old_re->instance)) | |
318 | || vrf_bitmap_check( | |
319 | client->redist[afi][old_re->type], | |
320 | old_re->vrf_id))) { | |
74489921 | 321 | zsend_redistribute_route(ZEBRA_REDISTRIBUTE_ROUTE_DEL, |
40f321c0 | 322 | client, p, src_p, old_re); |
d62a17ae | 323 | } |
1eb8ef25 | 324 | } |
718e3744 | 325 | } |
326 | ||
89f4e507 | 327 | void zebra_redistribute_add(ZAPI_HANDLER_ARGS) |
718e3744 | 328 | { |
ec93aa12 DS |
329 | afi_t afi = 0; |
330 | int type = 0; | |
d7c0a89a | 331 | unsigned short instance; |
d62a17ae | 332 | |
1002497a QY |
333 | STREAM_GETC(msg, afi); |
334 | STREAM_GETC(msg, type); | |
335 | STREAM_GETW(msg, instance); | |
d62a17ae | 336 | |
1b6e575b PZ |
337 | if (IS_ZEBRA_DEBUG_EVENT) |
338 | zlog_debug( | |
38bbad1b | 339 | "%s: client proto %s afi=%d, wants %s, vrf %u, instance=%d", |
1b6e575b PZ |
340 | __func__, zebra_route_string(client->proto), afi, |
341 | zebra_route_string(type), zvrf_id(zvrf), instance); | |
342 | ||
e1fa928d | 343 | if (afi == 0 || afi >= AFI_MAX) { |
e914ccbe | 344 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, |
9df414fe | 345 | "%s: Specified afi %d does not exist", |
ec93aa12 | 346 | __PRETTY_FUNCTION__, afi); |
d62a17ae | 347 | return; |
ec93aa12 DS |
348 | } |
349 | ||
350 | if (type == 0 || type >= ZEBRA_ROUTE_MAX) { | |
9df414fe QY |
351 | zlog_debug("%s: Specified Route Type %d does not exist", |
352 | __PRETTY_FUNCTION__, type); | |
ec93aa12 DS |
353 | return; |
354 | } | |
d62a17ae | 355 | |
356 | if (instance) { | |
357 | if (!redist_check_instance(&client->mi_redist[afi][type], | |
358 | instance)) { | |
359 | redist_add_instance(&client->mi_redist[afi][type], | |
360 | instance); | |
361 | zebra_redistribute(client, type, instance, | |
362 | zvrf_id(zvrf), afi); | |
363 | } | |
364 | } else { | |
365 | if (!vrf_bitmap_check(client->redist[afi][type], | |
366 | zvrf_id(zvrf))) { | |
1b6e575b | 367 | if (IS_ZEBRA_DEBUG_EVENT) |
38bbad1b | 368 | zlog_debug("%s: setting vrf %u redist bitmap", |
1b6e575b | 369 | __func__, zvrf_id(zvrf)); |
d62a17ae | 370 | vrf_bitmap_set(client->redist[afi][type], |
371 | zvrf_id(zvrf)); | |
372 | zebra_redistribute(client, type, 0, zvrf_id(zvrf), afi); | |
373 | } | |
4e1cadf0 | 374 | } |
ec93aa12 DS |
375 | |
376 | stream_failure: | |
377 | return; | |
ebf08631 | 378 | } |
718e3744 | 379 | |
89f4e507 | 380 | void zebra_redistribute_delete(ZAPI_HANDLER_ARGS) |
718e3744 | 381 | { |
ec93aa12 DS |
382 | afi_t afi = 0; |
383 | int type = 0; | |
d7c0a89a | 384 | unsigned short instance; |
d62a17ae | 385 | |
1002497a QY |
386 | STREAM_GETC(msg, afi); |
387 | STREAM_GETC(msg, type); | |
388 | STREAM_GETW(msg, instance); | |
d62a17ae | 389 | |
e1fa928d | 390 | if (afi == 0 || afi >= AFI_MAX) { |
e914ccbe | 391 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, |
9df414fe | 392 | "%s: Specified afi %d does not exist", |
ec93aa12 | 393 | __PRETTY_FUNCTION__, afi); |
d62a17ae | 394 | return; |
ec93aa12 DS |
395 | } |
396 | ||
397 | if (type == 0 || type >= ZEBRA_ROUTE_MAX) { | |
9df414fe QY |
398 | zlog_debug("%s: Specified Route Type %d does not exist", |
399 | __PRETTY_FUNCTION__, type); | |
ec93aa12 DS |
400 | return; |
401 | } | |
d62a17ae | 402 | |
403 | /* | |
404 | * NOTE: no need to withdraw the previously advertised routes. The | |
405 | * clients | |
406 | * themselves should keep track of the received routes from zebra and | |
407 | * withdraw them when necessary. | |
408 | */ | |
409 | if (instance) | |
410 | redist_del_instance(&client->mi_redist[afi][type], instance); | |
411 | else | |
412 | vrf_bitmap_unset(client->redist[afi][type], zvrf_id(zvrf)); | |
ec93aa12 DS |
413 | |
414 | stream_failure: | |
415 | return; | |
ebf08631 | 416 | } |
718e3744 | 417 | |
89f4e507 | 418 | void zebra_redistribute_default_add(ZAPI_HANDLER_ARGS) |
718e3744 | 419 | { |
49db7a7b RW |
420 | afi_t afi = 0; |
421 | ||
422 | STREAM_GETC(msg, afi); | |
423 | ||
424 | if (afi == 0 || afi >= AFI_MAX) { | |
425 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, | |
426 | "%s: Specified afi %u does not exist", | |
427 | __PRETTY_FUNCTION__, afi); | |
428 | return; | |
429 | } | |
430 | ||
431 | vrf_bitmap_set(client->redist_default[afi], zvrf_id(zvrf)); | |
d62a17ae | 432 | zebra_redistribute_default(client, zvrf_id(zvrf)); |
49db7a7b RW |
433 | |
434 | stream_failure: | |
435 | return; | |
d62a17ae | 436 | } |
718e3744 | 437 | |
89f4e507 | 438 | void zebra_redistribute_default_delete(ZAPI_HANDLER_ARGS) |
718e3744 | 439 | { |
49db7a7b RW |
440 | afi_t afi = 0; |
441 | ||
442 | STREAM_GETC(msg, afi); | |
443 | ||
444 | if (afi == 0 || afi >= AFI_MAX) { | |
445 | flog_warn(EC_ZEBRA_REDISTRIBUTE_UNKNOWN_AF, | |
446 | "%s: Specified afi %u does not exist", | |
447 | __PRETTY_FUNCTION__, afi); | |
448 | return; | |
449 | } | |
450 | ||
451 | vrf_bitmap_unset(client->redist_default[afi], zvrf_id(zvrf)); | |
452 | ||
453 | stream_failure: | |
454 | return; | |
d62a17ae | 455 | } |
718e3744 | 456 | |
457 | /* Interface up information. */ | |
d62a17ae | 458 | void zebra_interface_up_update(struct interface *ifp) |
718e3744 | 459 | { |
d62a17ae | 460 | struct listnode *node, *nnode; |
461 | struct zserv *client; | |
462 | ||
463 | if (IS_ZEBRA_DEBUG_EVENT) | |
38bbad1b | 464 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_UP %s(%u)", |
a36898e7 | 465 | ifp->name, ifp->vrf_id); |
d62a17ae | 466 | |
467 | if (ifp->ptm_status || !ifp->ptm_enable) { | |
161e9ab7 | 468 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, |
a8a20c4e DS |
469 | client)) { |
470 | zsend_interface_update(ZEBRA_INTERFACE_UP, | |
471 | client, ifp); | |
472 | zsend_interface_link_params(client, ifp); | |
473 | } | |
16f1b9ee | 474 | } |
718e3744 | 475 | } |
476 | ||
477 | /* Interface down information. */ | |
d62a17ae | 478 | void zebra_interface_down_update(struct interface *ifp) |
718e3744 | 479 | { |
d62a17ae | 480 | struct listnode *node, *nnode; |
481 | struct zserv *client; | |
718e3744 | 482 | |
d62a17ae | 483 | if (IS_ZEBRA_DEBUG_EVENT) |
38bbad1b | 484 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_DOWN %s(%u)", |
a36898e7 | 485 | ifp->name, ifp->vrf_id); |
718e3744 | 486 | |
161e9ab7 | 487 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
d62a17ae | 488 | zsend_interface_update(ZEBRA_INTERFACE_DOWN, client, ifp); |
489 | } | |
718e3744 | 490 | } |
491 | ||
492 | /* Interface information update. */ | |
d62a17ae | 493 | void zebra_interface_add_update(struct interface *ifp) |
718e3744 | 494 | { |
d62a17ae | 495 | struct listnode *node, *nnode; |
496 | struct zserv *client; | |
497 | ||
498 | if (IS_ZEBRA_DEBUG_EVENT) | |
38bbad1b | 499 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_ADD %s(%u)", ifp->name, |
a36898e7 | 500 | ifp->vrf_id); |
d62a17ae | 501 | |
a8a20c4e DS |
502 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
503 | client->ifadd_cnt++; | |
504 | zsend_interface_add(client, ifp); | |
505 | zsend_interface_link_params(client, ifp); | |
506 | } | |
718e3744 | 507 | } |
508 | ||
d62a17ae | 509 | void zebra_interface_delete_update(struct interface *ifp) |
718e3744 | 510 | { |
d62a17ae | 511 | struct listnode *node, *nnode; |
512 | struct zserv *client; | |
718e3744 | 513 | |
d62a17ae | 514 | if (IS_ZEBRA_DEBUG_EVENT) |
38bbad1b | 515 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_DELETE %s(%u)", |
a36898e7 | 516 | ifp->name, ifp->vrf_id); |
718e3744 | 517 | |
161e9ab7 | 518 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
d62a17ae | 519 | client->ifdel_cnt++; |
520 | zsend_interface_delete(client, ifp); | |
521 | } | |
718e3744 | 522 | } |
523 | ||
524 | /* Interface address addition. */ | |
d62a17ae | 525 | void zebra_interface_address_add_update(struct interface *ifp, |
526 | struct connected *ifc) | |
718e3744 | 527 | { |
d62a17ae | 528 | struct listnode *node, *nnode; |
529 | struct zserv *client; | |
530 | struct prefix *p; | |
531 | ||
532 | if (IS_ZEBRA_DEBUG_EVENT) { | |
533 | char buf[PREFIX_STRLEN]; | |
534 | ||
535 | p = ifc->address; | |
38bbad1b DS |
536 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_ADDRESS_ADD %s on %s(%u)", |
537 | prefix2str(p, buf, sizeof(buf)), ifp->name, | |
a36898e7 | 538 | ifp->vrf_id); |
d62a17ae | 539 | } |
540 | ||
541 | if (!CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) | |
9df414fe | 542 | flog_warn( |
e914ccbe | 543 | EC_ZEBRA_ADVERTISING_UNUSABLE_ADDR, |
d62a17ae | 544 | "WARNING: advertising address to clients that is not yet usable."); |
545 | ||
1a98c087 MK |
546 | zebra_vxlan_add_del_gw_macip(ifp, ifc->address, 1); |
547 | ||
d62a17ae | 548 | router_id_add_address(ifc); |
549 | ||
161e9ab7 | 550 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) |
d62a17ae | 551 | if (CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) { |
552 | client->connected_rt_add_cnt++; | |
553 | zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_ADD, | |
554 | client, ifp, ifc); | |
555 | } | |
718e3744 | 556 | } |
557 | ||
558 | /* Interface address deletion. */ | |
d62a17ae | 559 | void zebra_interface_address_delete_update(struct interface *ifp, |
560 | struct connected *ifc) | |
718e3744 | 561 | { |
d62a17ae | 562 | struct listnode *node, *nnode; |
563 | struct zserv *client; | |
564 | struct prefix *p; | |
565 | ||
566 | if (IS_ZEBRA_DEBUG_EVENT) { | |
567 | char buf[PREFIX_STRLEN]; | |
568 | ||
569 | p = ifc->address; | |
38bbad1b DS |
570 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_ADDRESS_DELETE %s on %s(%u)", |
571 | prefix2str(p, buf, sizeof(buf)), | |
a36898e7 | 572 | ifp->name, ifp->vrf_id); |
d62a17ae | 573 | } |
574 | ||
1a98c087 MK |
575 | zebra_vxlan_add_del_gw_macip(ifp, ifc->address, 0); |
576 | ||
d62a17ae | 577 | router_id_del_address(ifc); |
578 | ||
161e9ab7 | 579 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) |
d62a17ae | 580 | if (CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) { |
581 | client->connected_rt_del_cnt++; | |
582 | zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_DELETE, | |
583 | client, ifp, ifc); | |
584 | } | |
718e3744 | 585 | } |
d5a5c8f0 | 586 | |
c8e264b6 | 587 | /* Interface VRF change. May need to delete from clients not interested in |
588 | * the new VRF. Note that this function is invoked *prior* to the VRF change. | |
589 | */ | |
d62a17ae | 590 | void zebra_interface_vrf_update_del(struct interface *ifp, vrf_id_t new_vrf_id) |
c8e264b6 | 591 | { |
d62a17ae | 592 | struct listnode *node, *nnode; |
593 | struct zserv *client; | |
594 | ||
595 | if (IS_ZEBRA_DEBUG_EVENT) | |
596 | zlog_debug( | |
597 | "MESSAGE: ZEBRA_INTERFACE_VRF_UPDATE/DEL %s VRF Id %u -> %u", | |
a36898e7 | 598 | ifp->name, ifp->vrf_id, new_vrf_id); |
d62a17ae | 599 | |
161e9ab7 | 600 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
d62a17ae | 601 | /* Need to delete if the client is not interested in the new |
602 | * VRF. */ | |
603 | zsend_interface_update(ZEBRA_INTERFACE_DOWN, client, ifp); | |
604 | client->ifdel_cnt++; | |
605 | zsend_interface_delete(client, ifp); | |
606 | zsend_interface_vrf_update(client, ifp, new_vrf_id); | |
607 | } | |
c8e264b6 | 608 | } |
609 | ||
610 | /* Interface VRF change. This function is invoked *post* VRF change and sends an | |
611 | * add to clients who are interested in the new VRF but not in the old VRF. | |
612 | */ | |
d62a17ae | 613 | void zebra_interface_vrf_update_add(struct interface *ifp, vrf_id_t old_vrf_id) |
c8e264b6 | 614 | { |
d62a17ae | 615 | struct listnode *node, *nnode; |
616 | struct zserv *client; | |
617 | ||
618 | if (IS_ZEBRA_DEBUG_EVENT) | |
619 | zlog_debug( | |
620 | "MESSAGE: ZEBRA_INTERFACE_VRF_UPDATE/ADD %s VRF Id %u -> %u", | |
a36898e7 | 621 | ifp->name, old_vrf_id, ifp->vrf_id); |
d62a17ae | 622 | |
161e9ab7 | 623 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
d62a17ae | 624 | /* Need to add if the client is interested in the new VRF. */ |
625 | client->ifadd_cnt++; | |
626 | zsend_interface_add(client, ifp); | |
627 | zsend_interface_addresses(client, ifp); | |
628 | } | |
c8e264b6 | 629 | } |
630 | ||
fe257ae7 DS |
631 | int zebra_add_import_table_entry(struct zebra_vrf *zvrf, struct route_node *rn, |
632 | struct route_entry *re, const char *rmap_name) | |
7a4bb9c5 | 633 | { |
d62a17ae | 634 | struct route_entry *newre; |
635 | struct route_entry *same; | |
636 | struct prefix p; | |
b68885f9 | 637 | route_map_result_t ret = RMAP_PERMITMATCH; |
f8c175f3 | 638 | afi_t afi; |
d62a17ae | 639 | |
f8c175f3 | 640 | afi = family2afi(rn->p.family); |
d62a17ae | 641 | if (rmap_name) |
642 | ret = zebra_import_table_route_map_check( | |
633a66a5 | 643 | afi, re->type, re->instance, &rn->p, re->ng.nexthop, |
fe257ae7 | 644 | zvrf->vrf->vrf_id, re->tag, rmap_name); |
d62a17ae | 645 | |
b68885f9 | 646 | if (ret != RMAP_PERMITMATCH) { |
85c615ac | 647 | UNSET_FLAG(re->flags, ZEBRA_FLAG_SELECTED); |
fe257ae7 | 648 | zebra_del_import_table_entry(zvrf, rn, re); |
20796bc3 DS |
649 | return 0; |
650 | } | |
d62a17ae | 651 | |
f8c175f3 | 652 | prefix_copy(&p, &rn->p); |
d62a17ae | 653 | |
a2addae8 RW |
654 | RNODE_FOREACH_RE (rn, same) { |
655 | if (CHECK_FLAG(same->status, ROUTE_ENTRY_REMOVED)) | |
f8c175f3 | 656 | continue; |
20796bc3 | 657 | |
996c9314 | 658 | if (same->type == re->type && same->instance == re->instance |
f8c175f3 DS |
659 | && same->table == re->table |
660 | && same->type != ZEBRA_ROUTE_CONNECT) | |
661 | break; | |
662 | } | |
20796bc3 | 663 | |
e71c84ca DS |
664 | if (same) { |
665 | UNSET_FLAG(same->flags, ZEBRA_FLAG_SELECTED); | |
fe257ae7 | 666 | zebra_del_import_table_entry(zvrf, rn, same); |
e71c84ca | 667 | } |
f8c175f3 | 668 | |
996c9314 | 669 | newre = XCALLOC(MTYPE_RE, sizeof(struct route_entry)); |
5c4b6e57 DS |
670 | newre->type = ZEBRA_ROUTE_TABLE; |
671 | newre->distance = zebra_import_table_distance[afi][re->table]; | |
672 | newre->flags = re->flags; | |
673 | newre->metric = re->metric; | |
674 | newre->mtu = re->mtu; | |
317c6a10 | 675 | newre->table = zvrf->table_id; |
5c4b6e57 | 676 | newre->nexthop_num = 0; |
98572489 | 677 | newre->uptime = monotime(NULL); |
5c4b6e57 | 678 | newre->instance = re->table; |
7ee30f28 | 679 | route_entry_copy_nexthops(newre, re->ng.nexthop); |
5c4b6e57 DS |
680 | |
681 | rib_add_multipath(afi, SAFI_UNICAST, &p, NULL, newre); | |
682 | ||
d62a17ae | 683 | return 0; |
7a4bb9c5 DS |
684 | } |
685 | ||
fe257ae7 DS |
686 | int zebra_del_import_table_entry(struct zebra_vrf *zvrf, struct route_node *rn, |
687 | struct route_entry *re) | |
7a4bb9c5 | 688 | { |
d62a17ae | 689 | struct prefix p; |
f8c175f3 | 690 | afi_t afi; |
7a4bb9c5 | 691 | |
f8c175f3 DS |
692 | afi = family2afi(rn->p.family); |
693 | prefix_copy(&p, &rn->p); | |
7a4bb9c5 | 694 | |
fe257ae7 | 695 | rib_delete(afi, SAFI_UNICAST, zvrf->vrf->vrf_id, ZEBRA_ROUTE_TABLE, |
317c6a10 DS |
696 | re->table, re->flags, &p, NULL, re->ng.nexthop, |
697 | zvrf->table_id, re->metric, re->distance, false); | |
7a4bb9c5 | 698 | |
d62a17ae | 699 | return 0; |
7a4bb9c5 DS |
700 | } |
701 | ||
702 | /* Assuming no one calls this with the main routing table */ | |
fe257ae7 DS |
703 | int zebra_import_table(afi_t afi, vrf_id_t vrf_id, uint32_t table_id, |
704 | uint32_t distance, const char *rmap_name, int add) | |
7a4bb9c5 | 705 | { |
d62a17ae | 706 | struct route_table *table; |
707 | struct route_entry *re; | |
708 | struct route_node *rn; | |
fe257ae7 | 709 | struct zebra_vrf *zvrf = zebra_vrf_lookup_by_id(vrf_id); |
d62a17ae | 710 | |
711 | if (!is_zebra_valid_kernel_table(table_id) | |
c447ad08 | 712 | || (table_id == RT_TABLE_MAIN)) |
d62a17ae | 713 | return (-1); |
714 | ||
715 | if (afi >= AFI_MAX) | |
716 | return (-1); | |
717 | ||
fe257ae7 DS |
718 | table = zebra_vrf_table_with_table_id(afi, SAFI_UNICAST, vrf_id, |
719 | table_id); | |
d62a17ae | 720 | if (table == NULL) { |
721 | return 0; | |
722 | } else if (IS_ZEBRA_DEBUG_RIB) { | |
723 | zlog_debug("%s routes from table %d", | |
724 | add ? "Importing" : "Unimporting", table_id); | |
7a4bb9c5 DS |
725 | } |
726 | ||
d62a17ae | 727 | if (add) { |
728 | if (rmap_name) | |
729 | zebra_add_import_table_route_map(afi, rmap_name, | |
730 | table_id); | |
731 | else { | |
732 | rmap_name = | |
733 | zebra_get_import_table_route_map(afi, table_id); | |
3660beec | 734 | if (rmap_name) { |
d62a17ae | 735 | zebra_del_import_table_route_map(afi, table_id); |
3660beec DS |
736 | rmap_name = NULL; |
737 | } | |
d62a17ae | 738 | } |
7a4bb9c5 | 739 | |
d62a17ae | 740 | zebra_import_table_used[afi][table_id] = 1; |
741 | zebra_import_table_distance[afi][table_id] = distance; | |
742 | } else { | |
743 | zebra_import_table_used[afi][table_id] = 0; | |
744 | zebra_import_table_distance[afi][table_id] = | |
745 | ZEBRA_TABLE_DISTANCE_DEFAULT; | |
746 | ||
747 | rmap_name = zebra_get_import_table_route_map(afi, table_id); | |
3660beec | 748 | if (rmap_name) { |
d62a17ae | 749 | zebra_del_import_table_route_map(afi, table_id); |
3660beec DS |
750 | rmap_name = NULL; |
751 | } | |
7a4bb9c5 | 752 | } |
7a4bb9c5 | 753 | |
d62a17ae | 754 | for (rn = route_top(table); rn; rn = route_next(rn)) { |
755 | /* For each entry in the non-default routing table, | |
756 | * add the entry in the main table | |
757 | */ | |
758 | if (!rn->info) | |
759 | continue; | |
760 | ||
a2addae8 | 761 | RNODE_FOREACH_RE (rn, re) { |
d62a17ae | 762 | if (CHECK_FLAG(re->status, ROUTE_ENTRY_REMOVED)) |
763 | continue; | |
764 | break; | |
7a4bb9c5 | 765 | } |
8902474b | 766 | |
d62a17ae | 767 | if (!re) |
768 | continue; | |
8902474b | 769 | |
d62a17ae | 770 | if (((afi == AFI_IP) && (rn->p.family == AF_INET)) |
771 | || ((afi == AFI_IP6) && (rn->p.family == AF_INET6))) { | |
772 | if (add) | |
fe257ae7 DS |
773 | zebra_add_import_table_entry(zvrf, rn, re, |
774 | rmap_name); | |
d62a17ae | 775 | else |
fe257ae7 | 776 | zebra_del_import_table_entry(zvrf, rn, re); |
d62a17ae | 777 | } |
778 | } | |
779 | return 0; | |
780 | } | |
781 | ||
fe257ae7 | 782 | int zebra_import_table_config(struct vty *vty, vrf_id_t vrf_id) |
d62a17ae | 783 | { |
784 | int i; | |
785 | afi_t afi; | |
786 | int write = 0; | |
787 | char afi_str[AFI_MAX][10] = {"", "ip", "ipv6", "ethernet"}; | |
788 | const char *rmap_name; | |
789 | ||
790 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
791 | for (i = 1; i < ZEBRA_KERNEL_TABLE_MAX; i++) { | |
fe257ae7 | 792 | if (!is_zebra_import_table_enabled(afi, vrf_id, i)) |
20796bc3 | 793 | continue; |
d62a17ae | 794 | |
20796bc3 DS |
795 | if (zebra_import_table_distance[afi][i] |
796 | != ZEBRA_TABLE_DISTANCE_DEFAULT) { | |
996c9314 | 797 | vty_out(vty, "%s import-table %d distance %d", |
20796bc3 DS |
798 | afi_str[afi], i, |
799 | zebra_import_table_distance[afi][i]); | |
800 | } else { | |
996c9314 LB |
801 | vty_out(vty, "%s import-table %d", afi_str[afi], |
802 | i); | |
d62a17ae | 803 | } |
20796bc3 DS |
804 | |
805 | rmap_name = zebra_get_import_table_route_map(afi, i); | |
806 | if (rmap_name) | |
996c9314 | 807 | vty_out(vty, " route-map %s", rmap_name); |
20796bc3 DS |
808 | |
809 | vty_out(vty, "\n"); | |
810 | write = 1; | |
d62a17ae | 811 | } |
7a4bb9c5 | 812 | } |
7a4bb9c5 | 813 | |
d62a17ae | 814 | return write; |
7a4bb9c5 | 815 | } |
8902474b | 816 | |
fe257ae7 DS |
817 | static void zebra_import_table_rm_update_vrf_afi(struct zebra_vrf *zvrf, |
818 | afi_t afi, int table_id, | |
819 | const char *rmap) | |
8902474b | 820 | { |
d62a17ae | 821 | struct route_table *table; |
822 | struct route_entry *re; | |
823 | struct route_node *rn; | |
824 | const char *rmap_name; | |
825 | ||
fe257ae7 DS |
826 | rmap_name = zebra_get_import_table_route_map(afi, table_id); |
827 | if ((!rmap_name) || (strcmp(rmap_name, rmap) != 0)) | |
828 | return; | |
d62a17ae | 829 | |
fe257ae7 DS |
830 | table = zebra_vrf_table_with_table_id(afi, SAFI_UNICAST, |
831 | zvrf->vrf->vrf_id, table_id); | |
832 | if (!table) { | |
833 | if (IS_ZEBRA_DEBUG_RIB_DETAILED) | |
834 | zlog_debug("%s: Table id=%d not found", __func__, | |
835 | table_id); | |
836 | return; | |
837 | } | |
838 | ||
839 | for (rn = route_top(table); rn; rn = route_next(rn)) { | |
840 | /* | |
841 | * For each entry in the non-default routing table, | |
842 | * add the entry in the main table | |
843 | */ | |
844 | if (!rn->info) | |
845 | continue; | |
846 | ||
847 | RNODE_FOREACH_RE (rn, re) { | |
848 | if (CHECK_FLAG(re->status, ROUTE_ENTRY_REMOVED)) | |
d5b8c216 | 849 | continue; |
fe257ae7 DS |
850 | break; |
851 | } | |
852 | ||
853 | if (!re) | |
854 | continue; | |
855 | ||
856 | if (((afi == AFI_IP) && (rn->p.family == AF_INET)) | |
857 | || ((afi == AFI_IP6) && (rn->p.family == AF_INET6))) | |
858 | zebra_add_import_table_entry(zvrf, rn, re, rmap_name); | |
859 | } | |
860 | ||
861 | return; | |
862 | } | |
863 | ||
864 | static void zebra_import_table_rm_update_vrf(struct zebra_vrf *zvrf, | |
865 | const char *rmap) | |
866 | { | |
867 | afi_t afi; | |
868 | int i; | |
869 | ||
870 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
871 | for (i = 1; i < ZEBRA_KERNEL_TABLE_MAX; i++) { | |
872 | if (!is_zebra_import_table_enabled( | |
873 | afi, zvrf->vrf->vrf_id, i)) | |
2c7ef20d | 874 | continue; |
2c7ef20d | 875 | |
fe257ae7 DS |
876 | zebra_import_table_rm_update_vrf_afi(zvrf, afi, i, |
877 | rmap); | |
d62a17ae | 878 | } |
8902474b | 879 | } |
fe257ae7 | 880 | } |
8902474b | 881 | |
fe257ae7 DS |
882 | void zebra_import_table_rm_update(const char *rmap) |
883 | { | |
884 | struct vrf *vrf; | |
885 | struct zebra_vrf *zvrf; | |
886 | ||
887 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) { | |
888 | zvrf = vrf->info; | |
889 | ||
890 | if (!zvrf) | |
891 | continue; | |
892 | ||
893 | zebra_import_table_rm_update_vrf(zvrf, rmap); | |
894 | } | |
8902474b | 895 | } |
16f1b9ee OD |
896 | |
897 | /* Interface parameters update */ | |
d62a17ae | 898 | void zebra_interface_parameters_update(struct interface *ifp) |
16f1b9ee | 899 | { |
d62a17ae | 900 | struct listnode *node, *nnode; |
901 | struct zserv *client; | |
16f1b9ee | 902 | |
d62a17ae | 903 | if (IS_ZEBRA_DEBUG_EVENT) |
38bbad1b | 904 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_LINK_PARAMS %s(%u)", |
a36898e7 | 905 | ifp->name, ifp->vrf_id); |
16f1b9ee | 906 | |
161e9ab7 | 907 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) |
a8a20c4e | 908 | zsend_interface_link_params(client, ifp); |
16f1b9ee | 909 | } |