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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" | |
36 | #include "zebra/zserv.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" |
4a1ab8e4 | 43 | #include "zebra/zebra_memory.h" |
1a98c087 | 44 | #include "zebra/zebra_vxlan.h" |
718e3744 | 45 | |
244c1cdc DS |
46 | #define ZEBRA_PTM_SUPPORT |
47 | ||
7a4bb9c5 DS |
48 | /* array holding redistribute info about table redistribution */ |
49 | /* bit AFI is set if that AFI is redistributing routes from this table */ | |
032bfaaf | 50 | static int zebra_import_table_used[AFI_MAX][ZEBRA_KERNEL_TABLE_MAX]; |
7a4bb9c5 DS |
51 | static u_int32_t zebra_import_table_distance[AFI_MAX][ZEBRA_KERNEL_TABLE_MAX]; |
52 | ||
d62a17ae | 53 | int is_zebra_import_table_enabled(afi_t afi, u_int32_t table_id) |
7a4bb9c5 | 54 | { |
1e9f448f DS |
55 | /* |
56 | * Make sure that what we are called with actualy makes sense | |
57 | */ | |
58 | if (afi == AFI_MAX) | |
59 | return 0; | |
60 | ||
d62a17ae | 61 | if (is_zebra_valid_kernel_table(table_id)) |
62 | return zebra_import_table_used[afi][table_id]; | |
63 | return 0; | |
7a4bb9c5 DS |
64 | } |
65 | ||
d62a17ae | 66 | int is_default(struct prefix *p) |
718e3744 | 67 | { |
d62a17ae | 68 | if (p->family == AF_INET) |
69 | if (p->u.prefix4.s_addr == 0 && p->prefixlen == 0) | |
70 | return 1; | |
71 | #if 0 /* IPv6 default separation is now pending until protocol daemon \ | |
72 | can handle that. */ | |
718e3744 | 73 | if (p->family == AF_INET6) |
74 | if (IN6_IS_ADDR_UNSPECIFIED (&p->u.prefix6) && p->prefixlen == 0) | |
75 | return 1; | |
76 | #endif /* 0 */ | |
d62a17ae | 77 | return 0; |
718e3744 | 78 | } |
79 | ||
d62a17ae | 80 | static void zebra_redistribute_default(struct zserv *client, vrf_id_t vrf_id) |
718e3744 | 81 | { |
d62a17ae | 82 | int afi; |
83 | struct prefix p; | |
84 | struct route_table *table; | |
85 | struct route_node *rn; | |
86 | struct route_entry *newre; | |
87 | ||
88 | for (afi = AFI_IP; afi <= AFI_IP6; afi++) { | |
89 | /* Lookup table. */ | |
90 | table = zebra_vrf_table(afi, SAFI_UNICAST, vrf_id); | |
91 | if (!table) | |
92 | continue; | |
93 | ||
94 | /* Lookup default route. */ | |
95 | memset(&p, 0, sizeof(p)); | |
96 | p.family = afi2family(afi); | |
97 | rn = route_node_lookup(table, &p); | |
98 | if (!rn) | |
99 | continue; | |
100 | ||
101 | RNODE_FOREACH_RE(rn, newre) | |
102 | if (CHECK_FLAG(newre->flags, ZEBRA_FLAG_SELECTED) | |
103 | && newre->distance != DISTANCE_INFINITY) | |
74489921 RW |
104 | zsend_redistribute_route(ZEBRA_REDISTRIBUTE_ROUTE_ADD, |
105 | client, &rn->p, NULL, newre); | |
d62a17ae | 106 | |
107 | route_unlock_node(rn); | |
108 | } | |
718e3744 | 109 | } |
110 | ||
111 | /* Redistribute routes. */ | |
d62a17ae | 112 | static void zebra_redistribute(struct zserv *client, int type, u_short instance, |
113 | vrf_id_t vrf_id, int afi) | |
718e3744 | 114 | { |
d62a17ae | 115 | struct route_entry *newre; |
116 | struct route_table *table; | |
117 | struct route_node *rn; | |
118 | ||
119 | table = zebra_vrf_table(afi, SAFI_UNICAST, vrf_id); | |
120 | if (!table) | |
121 | return; | |
122 | ||
f0c4b8e1 | 123 | for (rn = route_top(table); rn; rn = srcdest_route_next(rn)) |
d62a17ae | 124 | RNODE_FOREACH_RE(rn, newre) |
125 | { | |
126 | struct prefix *dst_p, *src_p; | |
127 | srcdest_rnode_prefixes(rn, &dst_p, &src_p); | |
128 | ||
129 | if (IS_ZEBRA_DEBUG_EVENT) | |
130 | zlog_debug( | |
131 | "%s: checking: selected=%d, type=%d, distance=%d, " | |
132 | "zebra_check_addr=%d", | |
133 | __func__, | |
134 | CHECK_FLAG(newre->flags, | |
135 | ZEBRA_FLAG_SELECTED), | |
136 | newre->type, newre->distance, | |
137 | zebra_check_addr(dst_p)); | |
138 | ||
139 | if (!CHECK_FLAG(newre->flags, ZEBRA_FLAG_SELECTED)) | |
140 | continue; | |
141 | if ((type != ZEBRA_ROUTE_ALL | |
142 | && (newre->type != type | |
143 | || newre->instance != instance))) | |
144 | continue; | |
145 | if (newre->distance == DISTANCE_INFINITY) | |
146 | continue; | |
147 | if (!zebra_check_addr(dst_p)) | |
148 | continue; | |
149 | ||
74489921 RW |
150 | zsend_redistribute_route(ZEBRA_REDISTRIBUTE_ROUTE_ADD, |
151 | client, dst_p, src_p, newre); | |
d62a17ae | 152 | } |
718e3744 | 153 | } |
154 | ||
c41fc67b | 155 | /* Either advertise a route for redistribution to registered clients or */ |
156 | /* withdraw redistribution if add cannot be done for client */ | |
d62a17ae | 157 | void redistribute_update(struct prefix *p, struct prefix *src_p, |
158 | struct route_entry *re, struct route_entry *prev_re) | |
718e3744 | 159 | { |
d62a17ae | 160 | struct listnode *node, *nnode; |
161 | struct zserv *client; | |
162 | int send_redistribute; | |
163 | int afi; | |
164 | char buf[INET6_ADDRSTRLEN]; | |
165 | ||
166 | if (IS_ZEBRA_DEBUG_RIB) { | |
167 | inet_ntop(p->family, &p->u.prefix, buf, INET6_ADDRSTRLEN); | |
168 | zlog_debug( | |
169 | "%u:%s/%d: Redist update re %p (type %d), old %p (type %d)", | |
170 | re->vrf_id, buf, p->prefixlen, re, re->type, prev_re, | |
171 | prev_re ? prev_re->type : -1); | |
172 | } | |
173 | ||
174 | afi = family2afi(p->family); | |
175 | if (!afi) { | |
176 | zlog_warn("%s: Unknown AFI/SAFI prefix received\n", | |
177 | __FUNCTION__); | |
178 | return; | |
c41fc67b | 179 | } |
d62a17ae | 180 | |
181 | for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) { | |
182 | send_redistribute = 0; | |
183 | ||
184 | if (is_default(p) | |
185 | && vrf_bitmap_check(client->redist_default, re->vrf_id)) | |
186 | send_redistribute = 1; | |
187 | else if (vrf_bitmap_check(client->redist[afi][ZEBRA_ROUTE_ALL], | |
188 | re->vrf_id)) | |
189 | send_redistribute = 1; | |
190 | else if (re->instance | |
191 | && redist_check_instance( | |
192 | &client->mi_redist[afi][re->type], | |
193 | re->instance)) | |
194 | send_redistribute = 1; | |
195 | else if (vrf_bitmap_check(client->redist[afi][re->type], | |
196 | re->vrf_id)) | |
197 | send_redistribute = 1; | |
198 | ||
199 | if (send_redistribute) { | |
74489921 RW |
200 | zsend_redistribute_route(ZEBRA_REDISTRIBUTE_ROUTE_ADD, |
201 | client, p, src_p, re); | |
d62a17ae | 202 | } else if (prev_re |
203 | && ((re->instance | |
204 | && redist_check_instance( | |
205 | &client->mi_redist[afi] | |
206 | [prev_re->type], | |
207 | re->instance)) | |
208 | || vrf_bitmap_check( | |
209 | client->redist[afi][prev_re->type], | |
210 | re->vrf_id))) { | |
74489921 RW |
211 | zsend_redistribute_route(ZEBRA_REDISTRIBUTE_ROUTE_DEL, |
212 | client, p, src_p, prev_re); | |
d62a17ae | 213 | } |
c41fc67b | 214 | } |
718e3744 | 215 | } |
216 | ||
d62a17ae | 217 | void redistribute_delete(struct prefix *p, struct prefix *src_p, |
218 | struct route_entry *re) | |
718e3744 | 219 | { |
d62a17ae | 220 | struct listnode *node, *nnode; |
221 | struct zserv *client; | |
222 | char buf[INET6_ADDRSTRLEN]; | |
223 | int afi; | |
224 | ||
225 | if (IS_ZEBRA_DEBUG_RIB) { | |
226 | inet_ntop(p->family, &p->u.prefix, buf, INET6_ADDRSTRLEN); | |
227 | zlog_debug("%u:%s/%d: Redist delete re %p (type %d)", | |
228 | re->vrf_id, buf, p->prefixlen, re, re->type); | |
229 | } | |
230 | ||
231 | /* Add DISTANCE_INFINITY check. */ | |
232 | if (re->distance == DISTANCE_INFINITY) | |
233 | return; | |
234 | ||
235 | afi = family2afi(p->family); | |
236 | if (!afi) { | |
237 | zlog_warn("%s: Unknown AFI/SAFI prefix received\n", | |
238 | __FUNCTION__); | |
239 | return; | |
240 | } | |
241 | ||
242 | for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) { | |
243 | if ((is_default(p) | |
244 | && vrf_bitmap_check(client->redist_default, re->vrf_id)) | |
245 | || vrf_bitmap_check(client->redist[afi][ZEBRA_ROUTE_ALL], | |
246 | re->vrf_id) | |
247 | || (re->instance | |
248 | && redist_check_instance( | |
249 | &client->mi_redist[afi][re->type], | |
250 | re->instance)) | |
251 | || vrf_bitmap_check(client->redist[afi][re->type], | |
252 | re->vrf_id)) { | |
74489921 RW |
253 | zsend_redistribute_route(ZEBRA_REDISTRIBUTE_ROUTE_DEL, |
254 | client, p, src_p, re); | |
d62a17ae | 255 | } |
1eb8ef25 | 256 | } |
718e3744 | 257 | } |
258 | ||
d62a17ae | 259 | void zebra_redistribute_add(int command, struct zserv *client, int length, |
260 | struct zebra_vrf *zvrf) | |
718e3744 | 261 | { |
d62a17ae | 262 | afi_t afi; |
263 | int type; | |
264 | u_short instance; | |
265 | ||
266 | afi = stream_getc(client->ibuf); | |
267 | type = stream_getc(client->ibuf); | |
268 | instance = stream_getw(client->ibuf); | |
269 | ||
270 | if (type == 0 || type >= ZEBRA_ROUTE_MAX) | |
271 | return; | |
272 | ||
273 | if (instance) { | |
274 | if (!redist_check_instance(&client->mi_redist[afi][type], | |
275 | instance)) { | |
276 | redist_add_instance(&client->mi_redist[afi][type], | |
277 | instance); | |
278 | zebra_redistribute(client, type, instance, | |
279 | zvrf_id(zvrf), afi); | |
280 | } | |
281 | } else { | |
282 | if (!vrf_bitmap_check(client->redist[afi][type], | |
283 | zvrf_id(zvrf))) { | |
284 | vrf_bitmap_set(client->redist[afi][type], | |
285 | zvrf_id(zvrf)); | |
286 | zebra_redistribute(client, type, 0, zvrf_id(zvrf), afi); | |
287 | } | |
4e1cadf0 | 288 | } |
ebf08631 | 289 | } |
718e3744 | 290 | |
d62a17ae | 291 | void zebra_redistribute_delete(int command, struct zserv *client, int length, |
292 | struct zebra_vrf *zvrf) | |
718e3744 | 293 | { |
d62a17ae | 294 | afi_t afi; |
295 | int type; | |
296 | u_short instance; | |
297 | ||
298 | afi = stream_getc(client->ibuf); | |
299 | type = stream_getc(client->ibuf); | |
300 | instance = stream_getw(client->ibuf); | |
301 | ||
302 | if (type == 0 || type >= ZEBRA_ROUTE_MAX) | |
303 | return; | |
304 | ||
305 | /* | |
306 | * NOTE: no need to withdraw the previously advertised routes. The | |
307 | * clients | |
308 | * themselves should keep track of the received routes from zebra and | |
309 | * withdraw them when necessary. | |
310 | */ | |
311 | if (instance) | |
312 | redist_del_instance(&client->mi_redist[afi][type], instance); | |
313 | else | |
314 | vrf_bitmap_unset(client->redist[afi][type], zvrf_id(zvrf)); | |
ebf08631 | 315 | } |
718e3744 | 316 | |
d62a17ae | 317 | void zebra_redistribute_default_add(int command, struct zserv *client, |
318 | int length, struct zebra_vrf *zvrf) | |
718e3744 | 319 | { |
d62a17ae | 320 | vrf_bitmap_set(client->redist_default, zvrf_id(zvrf)); |
321 | zebra_redistribute_default(client, zvrf_id(zvrf)); | |
322 | } | |
718e3744 | 323 | |
d62a17ae | 324 | void zebra_redistribute_default_delete(int command, struct zserv *client, |
325 | int length, struct zebra_vrf *zvrf) | |
718e3744 | 326 | { |
d62a17ae | 327 | vrf_bitmap_unset(client->redist_default, zvrf_id(zvrf)); |
328 | } | |
718e3744 | 329 | |
330 | /* Interface up information. */ | |
d62a17ae | 331 | void zebra_interface_up_update(struct interface *ifp) |
718e3744 | 332 | { |
d62a17ae | 333 | struct listnode *node, *nnode; |
334 | struct zserv *client; | |
335 | ||
336 | if (IS_ZEBRA_DEBUG_EVENT) | |
337 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_UP %s", ifp->name); | |
338 | ||
339 | if (ifp->ptm_status || !ifp->ptm_enable) { | |
340 | for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) | |
341 | if (client->ifinfo) { | |
342 | zsend_interface_update(ZEBRA_INTERFACE_UP, | |
343 | client, ifp); | |
344 | zsend_interface_link_params(client, ifp); | |
345 | } | |
16f1b9ee | 346 | } |
718e3744 | 347 | } |
348 | ||
349 | /* Interface down information. */ | |
d62a17ae | 350 | void zebra_interface_down_update(struct interface *ifp) |
718e3744 | 351 | { |
d62a17ae | 352 | struct listnode *node, *nnode; |
353 | struct zserv *client; | |
718e3744 | 354 | |
d62a17ae | 355 | if (IS_ZEBRA_DEBUG_EVENT) |
356 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_DOWN %s", ifp->name); | |
718e3744 | 357 | |
d62a17ae | 358 | for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) { |
359 | zsend_interface_update(ZEBRA_INTERFACE_DOWN, client, ifp); | |
360 | } | |
718e3744 | 361 | } |
362 | ||
363 | /* Interface information update. */ | |
d62a17ae | 364 | void zebra_interface_add_update(struct interface *ifp) |
718e3744 | 365 | { |
d62a17ae | 366 | struct listnode *node, *nnode; |
367 | struct zserv *client; | |
368 | ||
369 | if (IS_ZEBRA_DEBUG_EVENT) | |
370 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_ADD %s[%d]", ifp->name, | |
371 | ifp->vrf_id); | |
372 | ||
373 | for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) | |
374 | if (client->ifinfo) { | |
375 | client->ifadd_cnt++; | |
376 | zsend_interface_add(client, ifp); | |
377 | zsend_interface_link_params(client, ifp); | |
378 | } | |
718e3744 | 379 | } |
380 | ||
d62a17ae | 381 | void zebra_interface_delete_update(struct interface *ifp) |
718e3744 | 382 | { |
d62a17ae | 383 | struct listnode *node, *nnode; |
384 | struct zserv *client; | |
718e3744 | 385 | |
d62a17ae | 386 | if (IS_ZEBRA_DEBUG_EVENT) |
387 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_DELETE %s", ifp->name); | |
718e3744 | 388 | |
d62a17ae | 389 | for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) { |
390 | client->ifdel_cnt++; | |
391 | zsend_interface_delete(client, ifp); | |
392 | } | |
718e3744 | 393 | } |
394 | ||
395 | /* Interface address addition. */ | |
d62a17ae | 396 | void zebra_interface_address_add_update(struct interface *ifp, |
397 | struct connected *ifc) | |
718e3744 | 398 | { |
d62a17ae | 399 | struct listnode *node, *nnode; |
400 | struct zserv *client; | |
401 | struct prefix *p; | |
402 | ||
403 | if (IS_ZEBRA_DEBUG_EVENT) { | |
404 | char buf[PREFIX_STRLEN]; | |
405 | ||
406 | p = ifc->address; | |
407 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_ADDRESS_ADD %s on %s", | |
408 | prefix2str(p, buf, sizeof(buf)), ifc->ifp->name); | |
409 | } | |
410 | ||
411 | if (!CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) | |
412 | zlog_warn( | |
413 | "WARNING: advertising address to clients that is not yet usable."); | |
414 | ||
1a98c087 MK |
415 | zebra_vxlan_add_del_gw_macip(ifp, ifc->address, 1); |
416 | ||
d62a17ae | 417 | router_id_add_address(ifc); |
418 | ||
419 | for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) | |
420 | if (CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) { | |
421 | client->connected_rt_add_cnt++; | |
422 | zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_ADD, | |
423 | client, ifp, ifc); | |
424 | } | |
718e3744 | 425 | } |
426 | ||
427 | /* Interface address deletion. */ | |
d62a17ae | 428 | void zebra_interface_address_delete_update(struct interface *ifp, |
429 | struct connected *ifc) | |
718e3744 | 430 | { |
d62a17ae | 431 | struct listnode *node, *nnode; |
432 | struct zserv *client; | |
433 | struct prefix *p; | |
434 | ||
435 | if (IS_ZEBRA_DEBUG_EVENT) { | |
436 | char buf[PREFIX_STRLEN]; | |
437 | ||
438 | p = ifc->address; | |
439 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_ADDRESS_DELETE %s on %s", | |
440 | prefix2str(p, buf, sizeof(buf)), ifc->ifp->name); | |
441 | } | |
442 | ||
1a98c087 MK |
443 | zebra_vxlan_add_del_gw_macip(ifp, ifc->address, 0); |
444 | ||
d62a17ae | 445 | router_id_del_address(ifc); |
446 | ||
447 | for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) | |
448 | if (CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) { | |
449 | client->connected_rt_del_cnt++; | |
450 | zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_DELETE, | |
451 | client, ifp, ifc); | |
452 | } | |
718e3744 | 453 | } |
d5a5c8f0 | 454 | |
c8e264b6 | 455 | /* Interface VRF change. May need to delete from clients not interested in |
456 | * the new VRF. Note that this function is invoked *prior* to the VRF change. | |
457 | */ | |
d62a17ae | 458 | void zebra_interface_vrf_update_del(struct interface *ifp, vrf_id_t new_vrf_id) |
c8e264b6 | 459 | { |
d62a17ae | 460 | struct listnode *node, *nnode; |
461 | struct zserv *client; | |
462 | ||
463 | if (IS_ZEBRA_DEBUG_EVENT) | |
464 | zlog_debug( | |
465 | "MESSAGE: ZEBRA_INTERFACE_VRF_UPDATE/DEL %s VRF Id %u -> %u", | |
466 | ifp->name, ifp->vrf_id, new_vrf_id); | |
467 | ||
468 | for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) { | |
469 | /* Need to delete if the client is not interested in the new | |
470 | * VRF. */ | |
471 | zsend_interface_update(ZEBRA_INTERFACE_DOWN, client, ifp); | |
472 | client->ifdel_cnt++; | |
473 | zsend_interface_delete(client, ifp); | |
474 | zsend_interface_vrf_update(client, ifp, new_vrf_id); | |
475 | } | |
c8e264b6 | 476 | } |
477 | ||
478 | /* Interface VRF change. This function is invoked *post* VRF change and sends an | |
479 | * add to clients who are interested in the new VRF but not in the old VRF. | |
480 | */ | |
d62a17ae | 481 | void zebra_interface_vrf_update_add(struct interface *ifp, vrf_id_t old_vrf_id) |
c8e264b6 | 482 | { |
d62a17ae | 483 | struct listnode *node, *nnode; |
484 | struct zserv *client; | |
485 | ||
486 | if (IS_ZEBRA_DEBUG_EVENT) | |
487 | zlog_debug( | |
488 | "MESSAGE: ZEBRA_INTERFACE_VRF_UPDATE/ADD %s VRF Id %u -> %u", | |
489 | ifp->name, old_vrf_id, ifp->vrf_id); | |
490 | ||
491 | for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) { | |
492 | /* Need to add if the client is interested in the new VRF. */ | |
493 | client->ifadd_cnt++; | |
494 | zsend_interface_add(client, ifp); | |
495 | zsend_interface_addresses(client, ifp); | |
496 | } | |
c8e264b6 | 497 | } |
498 | ||
d62a17ae | 499 | int zebra_add_import_table_entry(struct route_node *rn, struct route_entry *re, |
500 | const char *rmap_name) | |
7a4bb9c5 | 501 | { |
d62a17ae | 502 | struct route_entry *newre; |
503 | struct route_entry *same; | |
504 | struct prefix p; | |
d62a17ae | 505 | route_map_result_t ret = RMAP_MATCH; |
506 | ||
507 | if (rmap_name) | |
508 | ret = zebra_import_table_route_map_check( | |
509 | AFI_IP, re->type, &rn->p, re->nexthop, re->vrf_id, | |
510 | re->tag, rmap_name); | |
511 | ||
512 | if (ret == RMAP_MATCH) { | |
513 | if (rn->p.family == AF_INET) { | |
514 | p.family = AF_INET; | |
515 | p.prefixlen = rn->p.prefixlen; | |
516 | p.u.prefix4 = rn->p.u.prefix4; | |
517 | ||
518 | RNODE_FOREACH_RE(rn, same) | |
519 | { | |
520 | if (CHECK_FLAG(same->status, | |
521 | ROUTE_ENTRY_REMOVED)) | |
522 | continue; | |
523 | ||
524 | if (same->type == re->type | |
525 | && same->instance == re->instance | |
526 | && same->table == re->table | |
527 | && same->type != ZEBRA_ROUTE_CONNECT) | |
528 | break; | |
529 | } | |
530 | ||
531 | if (same) | |
532 | zebra_del_import_table_entry(rn, same); | |
533 | ||
534 | ||
535 | if (re->nexthop_num == 1) { | |
d62a17ae | 536 | rib_add(AFI_IP, SAFI_UNICAST, re->vrf_id, |
537 | ZEBRA_ROUTE_TABLE, re->table, 0, &p, | |
fd36be7e | 538 | NULL, re->nexthop, |
60466a63 QY |
539 | zebrad.rtm_table_default, re->metric, |
540 | re->mtu, | |
d62a17ae | 541 | zebra_import_table_distance[AFI_IP] |
542 | [re->table]); | |
543 | } else if (re->nexthop_num > 1) { | |
544 | newre = XCALLOC(MTYPE_RE, | |
545 | sizeof(struct route_entry)); | |
546 | newre->type = ZEBRA_ROUTE_TABLE; | |
547 | newre->distance = | |
548 | zebra_import_table_distance[AFI_IP] | |
549 | [re->table]; | |
550 | newre->flags = re->flags; | |
551 | newre->metric = re->metric; | |
552 | newre->mtu = re->mtu; | |
553 | newre->table = zebrad.rtm_table_default; | |
554 | newre->nexthop_num = 0; | |
555 | newre->uptime = time(NULL); | |
556 | newre->instance = re->table; | |
557 | route_entry_copy_nexthops(newre, re->nexthop); | |
558 | ||
559 | rib_add_multipath(AFI_IP, SAFI_UNICAST, &p, | |
560 | NULL, newre); | |
561 | } | |
562 | } | |
563 | } else { | |
564 | zebra_del_import_table_entry(rn, re); | |
565 | } | |
566 | /* DD: Add IPv6 code */ | |
567 | return 0; | |
7a4bb9c5 DS |
568 | } |
569 | ||
d62a17ae | 570 | int zebra_del_import_table_entry(struct route_node *rn, struct route_entry *re) |
7a4bb9c5 | 571 | { |
d62a17ae | 572 | struct prefix p; |
7a4bb9c5 | 573 | |
d62a17ae | 574 | if (rn->p.family == AF_INET) { |
575 | p.family = AF_INET; | |
576 | p.prefixlen = rn->p.prefixlen; | |
577 | p.u.prefix4 = rn->p.u.prefix4; | |
7a4bb9c5 | 578 | |
d62a17ae | 579 | rib_delete(AFI_IP, SAFI_UNICAST, re->vrf_id, ZEBRA_ROUTE_TABLE, |
fd36be7e | 580 | re->table, re->flags, &p, NULL, NULL, |
f19435a8 | 581 | zebrad.rtm_table_default, re->metric); |
d62a17ae | 582 | } |
583 | /* DD: Add IPv6 code */ | |
7a4bb9c5 | 584 | |
d62a17ae | 585 | return 0; |
7a4bb9c5 DS |
586 | } |
587 | ||
588 | /* Assuming no one calls this with the main routing table */ | |
d62a17ae | 589 | int zebra_import_table(afi_t afi, u_int32_t table_id, u_int32_t distance, |
590 | const char *rmap_name, int add) | |
7a4bb9c5 | 591 | { |
d62a17ae | 592 | struct route_table *table; |
593 | struct route_entry *re; | |
594 | struct route_node *rn; | |
595 | ||
596 | if (!is_zebra_valid_kernel_table(table_id) | |
597 | || ((table_id == RT_TABLE_MAIN) | |
598 | || (table_id == zebrad.rtm_table_default))) | |
599 | return (-1); | |
600 | ||
601 | if (afi >= AFI_MAX) | |
602 | return (-1); | |
603 | ||
604 | table = zebra_vrf_other_route_table(afi, table_id, VRF_DEFAULT); | |
605 | if (table == NULL) { | |
606 | return 0; | |
607 | } else if (IS_ZEBRA_DEBUG_RIB) { | |
608 | zlog_debug("%s routes from table %d", | |
609 | add ? "Importing" : "Unimporting", table_id); | |
7a4bb9c5 DS |
610 | } |
611 | ||
d62a17ae | 612 | if (add) { |
613 | if (rmap_name) | |
614 | zebra_add_import_table_route_map(afi, rmap_name, | |
615 | table_id); | |
616 | else { | |
617 | rmap_name = | |
618 | zebra_get_import_table_route_map(afi, table_id); | |
619 | if (rmap_name) | |
620 | zebra_del_import_table_route_map(afi, table_id); | |
621 | } | |
7a4bb9c5 | 622 | |
d62a17ae | 623 | zebra_import_table_used[afi][table_id] = 1; |
624 | zebra_import_table_distance[afi][table_id] = distance; | |
625 | } else { | |
626 | zebra_import_table_used[afi][table_id] = 0; | |
627 | zebra_import_table_distance[afi][table_id] = | |
628 | ZEBRA_TABLE_DISTANCE_DEFAULT; | |
629 | ||
630 | rmap_name = zebra_get_import_table_route_map(afi, table_id); | |
631 | if (rmap_name) | |
632 | zebra_del_import_table_route_map(afi, table_id); | |
7a4bb9c5 | 633 | } |
7a4bb9c5 | 634 | |
d62a17ae | 635 | for (rn = route_top(table); rn; rn = route_next(rn)) { |
636 | /* For each entry in the non-default routing table, | |
637 | * add the entry in the main table | |
638 | */ | |
639 | if (!rn->info) | |
640 | continue; | |
641 | ||
642 | RNODE_FOREACH_RE(rn, re) | |
7a4bb9c5 | 643 | { |
d62a17ae | 644 | if (CHECK_FLAG(re->status, ROUTE_ENTRY_REMOVED)) |
645 | continue; | |
646 | break; | |
7a4bb9c5 | 647 | } |
8902474b | 648 | |
d62a17ae | 649 | if (!re) |
650 | continue; | |
8902474b | 651 | |
d62a17ae | 652 | if (((afi == AFI_IP) && (rn->p.family == AF_INET)) |
653 | || ((afi == AFI_IP6) && (rn->p.family == AF_INET6))) { | |
654 | if (add) | |
655 | zebra_add_import_table_entry(rn, re, rmap_name); | |
656 | else | |
657 | zebra_del_import_table_entry(rn, re); | |
658 | } | |
659 | } | |
660 | return 0; | |
661 | } | |
662 | ||
663 | int zebra_import_table_config(struct vty *vty) | |
664 | { | |
665 | int i; | |
666 | afi_t afi; | |
667 | int write = 0; | |
668 | char afi_str[AFI_MAX][10] = {"", "ip", "ipv6", "ethernet"}; | |
669 | const char *rmap_name; | |
670 | ||
671 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
672 | for (i = 1; i < ZEBRA_KERNEL_TABLE_MAX; i++) { | |
673 | if (is_zebra_import_table_enabled(afi, i)) { | |
674 | if (zebra_import_table_distance[afi][i] | |
675 | != ZEBRA_TABLE_DISTANCE_DEFAULT) { | |
676 | vty_out(vty, | |
677 | "%s import-table %d distance %d", | |
678 | afi_str[afi], i, | |
679 | zebra_import_table_distance[afi] | |
680 | [i]); | |
681 | } else { | |
682 | vty_out(vty, "%s import-table %d", | |
683 | afi_str[afi], i); | |
684 | } | |
685 | ||
686 | rmap_name = zebra_get_import_table_route_map( | |
687 | afi, i); | |
688 | if (rmap_name) | |
689 | vty_out(vty, " route-map %s", | |
690 | rmap_name); | |
691 | ||
692 | vty_out(vty, "\n"); | |
693 | write = 1; | |
694 | } | |
695 | } | |
7a4bb9c5 | 696 | } |
7a4bb9c5 | 697 | |
d62a17ae | 698 | return write; |
7a4bb9c5 | 699 | } |
8902474b | 700 | |
d62a17ae | 701 | void zebra_import_table_rm_update() |
8902474b | 702 | { |
d62a17ae | 703 | afi_t afi; |
704 | int i; | |
705 | struct route_table *table; | |
706 | struct route_entry *re; | |
707 | struct route_node *rn; | |
708 | const char *rmap_name; | |
709 | ||
710 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
711 | for (i = 1; i < ZEBRA_KERNEL_TABLE_MAX; i++) { | |
712 | if (is_zebra_import_table_enabled(afi, i)) { | |
713 | rmap_name = zebra_get_import_table_route_map( | |
714 | afi, i); | |
715 | if (!rmap_name) | |
716 | return; | |
717 | ||
718 | table = zebra_vrf_other_route_table( | |
719 | afi, i, VRF_DEFAULT); | |
720 | for (rn = route_top(table); rn; | |
721 | rn = route_next(rn)) { | |
722 | /* For each entry in the non-default | |
723 | * routing table, | |
724 | * add the entry in the main table | |
725 | */ | |
726 | if (!rn->info) | |
727 | continue; | |
728 | ||
729 | RNODE_FOREACH_RE(rn, re) | |
730 | { | |
731 | if (CHECK_FLAG( | |
732 | re->status, | |
733 | ROUTE_ENTRY_REMOVED)) | |
734 | continue; | |
735 | break; | |
736 | } | |
737 | ||
738 | if (!re) | |
739 | continue; | |
740 | ||
741 | if (((afi == AFI_IP) | |
742 | && (rn->p.family == AF_INET)) | |
743 | || ((afi == AFI_IP6) | |
744 | && (rn->p.family == AF_INET6))) | |
745 | zebra_add_import_table_entry( | |
746 | rn, re, rmap_name); | |
747 | } | |
748 | } | |
749 | } | |
8902474b | 750 | } |
8902474b | 751 | |
d62a17ae | 752 | return; |
8902474b | 753 | } |
16f1b9ee OD |
754 | |
755 | /* Interface parameters update */ | |
d62a17ae | 756 | void zebra_interface_parameters_update(struct interface *ifp) |
16f1b9ee | 757 | { |
d62a17ae | 758 | struct listnode *node, *nnode; |
759 | struct zserv *client; | |
16f1b9ee | 760 | |
d62a17ae | 761 | if (IS_ZEBRA_DEBUG_EVENT) |
762 | zlog_debug("MESSAGE: ZEBRA_INTERFACE_LINK_PARAMS %s", | |
763 | ifp->name); | |
16f1b9ee | 764 | |
d62a17ae | 765 | for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) |
766 | if (client->ifinfo) | |
767 | zsend_interface_link_params(client, ifp); | |
16f1b9ee | 768 | } |