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