]>
Commit | Line | Data |
---|---|---|
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" |
718e3744 | 44 | |
244c1cdc DS |
45 | #define ZEBRA_PTM_SUPPORT |
46 | ||
7a4bb9c5 DS |
47 | /* array holding redistribute info about table redistribution */ |
48 | /* bit AFI is set if that AFI is redistributing routes from this table */ | |
032bfaaf | 49 | static int zebra_import_table_used[AFI_MAX][ZEBRA_KERNEL_TABLE_MAX]; |
7a4bb9c5 DS |
50 | static u_int32_t zebra_import_table_distance[AFI_MAX][ZEBRA_KERNEL_TABLE_MAX]; |
51 | ||
52 | int | |
53 | is_zebra_import_table_enabled(afi_t afi, u_int32_t table_id) | |
54 | { | |
55 | if (is_zebra_valid_kernel_table(table_id)) | |
032bfaaf | 56 | return zebra_import_table_used[afi][table_id]; |
7a4bb9c5 DS |
57 | return 0; |
58 | } | |
59 | ||
7076bb2f | 60 | int |
718e3744 | 61 | is_default (struct prefix *p) |
62 | { | |
63 | if (p->family == AF_INET) | |
64 | if (p->u.prefix4.s_addr == 0 && p->prefixlen == 0) | |
65 | return 1; | |
718e3744 | 66 | #if 0 /* IPv6 default separation is now pending until protocol daemon |
67 | can handle that. */ | |
68 | if (p->family == AF_INET6) | |
69 | if (IN6_IS_ADDR_UNSPECIFIED (&p->u.prefix6) && p->prefixlen == 0) | |
70 | return 1; | |
71 | #endif /* 0 */ | |
718e3744 | 72 | return 0; |
73 | } | |
74 | ||
27da3988 | 75 | static void |
7076bb2f | 76 | zebra_redistribute_default (struct zserv *client, vrf_id_t vrf_id) |
718e3744 | 77 | { |
9c6060d4 RW |
78 | int afi; |
79 | struct prefix p; | |
718e3744 | 80 | struct route_table *table; |
81 | struct route_node *rn; | |
f0f77c9a | 82 | struct route_entry *newre; |
718e3744 | 83 | |
9c6060d4 | 84 | for (afi = AFI_IP; afi <= AFI_IP6; afi++) |
718e3744 | 85 | { |
9c6060d4 RW |
86 | /* Lookup table. */ |
87 | table = zebra_vrf_table (afi, SAFI_UNICAST, vrf_id); | |
88 | if (! table) | |
89 | continue; | |
90 | ||
91 | /* Lookup default route. */ | |
92 | memset (&p, 0, sizeof (p)); | |
93 | p.family = afi2family (afi); | |
94 | rn = route_node_lookup (table, &p); | |
95 | if (! rn) | |
96 | continue; | |
718e3744 | 97 | |
f0f77c9a DS |
98 | RNODE_FOREACH_RE (rn, newre) |
99 | if (CHECK_FLAG (newre->flags, ZEBRA_FLAG_SELECTED) | |
100 | && newre->distance != DISTANCE_INFINITY) | |
101 | zsend_redistribute_route (1, client, &rn->p, NULL, newre); | |
718e3744 | 102 | |
9c6060d4 | 103 | route_unlock_node (rn); |
718e3744 | 104 | } |
718e3744 | 105 | } |
106 | ||
107 | /* Redistribute routes. */ | |
27da3988 | 108 | static void |
501be987 | 109 | zebra_redistribute (struct zserv *client, int type, u_short instance, vrf_id_t vrf_id, int afi) |
718e3744 | 110 | { |
f0f77c9a | 111 | struct route_entry *newre; |
718e3744 | 112 | struct route_table *table; |
113 | struct route_node *rn; | |
114 | ||
501be987 DW |
115 | table = zebra_vrf_table (afi, SAFI_UNICAST, vrf_id); |
116 | if (! table) | |
117 | return; | |
9c6060d4 | 118 | |
501be987 | 119 | for (rn = route_top (table); rn; rn = route_next (rn)) |
f0f77c9a | 120 | RNODE_FOREACH_RE (rn, newre) |
501be987 | 121 | { |
92eedda1 DL |
122 | struct prefix *dst_p, *src_p; |
123 | srcdest_rnode_prefixes(rn, &dst_p, &src_p); | |
124 | ||
501be987 DW |
125 | if (IS_ZEBRA_DEBUG_EVENT) |
126 | zlog_debug("%s: checking: selected=%d, type=%d, distance=%d, " | |
92eedda1 | 127 | "zebra_check_addr=%d", __func__, |
f0f77c9a DS |
128 | CHECK_FLAG (newre->flags, ZEBRA_FLAG_SELECTED), |
129 | newre->type, newre->distance, | |
92eedda1 | 130 | zebra_check_addr (dst_p)); |
501be987 | 131 | |
f0f77c9a | 132 | if (! CHECK_FLAG (newre->flags, ZEBRA_FLAG_SELECTED)) |
501be987 DW |
133 | continue; |
134 | if ((type != ZEBRA_ROUTE_ALL && | |
f0f77c9a | 135 | (newre->type != type || newre->instance != instance))) |
501be987 | 136 | continue; |
f0f77c9a | 137 | if (newre->distance == DISTANCE_INFINITY) |
501be987 | 138 | continue; |
92eedda1 | 139 | if (! zebra_check_addr (dst_p)) |
501be987 DW |
140 | continue; |
141 | ||
f0f77c9a | 142 | zsend_redistribute_route (1, client, dst_p, src_p, newre); |
501be987 | 143 | } |
718e3744 | 144 | } |
145 | ||
c41fc67b | 146 | /* Either advertise a route for redistribution to registered clients or */ |
147 | /* withdraw redistribution if add cannot be done for client */ | |
718e3744 | 148 | void |
05737783 | 149 | redistribute_update (struct prefix *p, struct prefix *src_p, |
f0f77c9a | 150 | struct route_entry *re, struct route_entry *prev_re) |
718e3744 | 151 | { |
1eb8ef25 | 152 | struct listnode *node, *nnode; |
718e3744 | 153 | struct zserv *client; |
c41fc67b | 154 | int send_redistribute; |
155 | int afi; | |
41ec9222 | 156 | char buf[INET6_ADDRSTRLEN]; |
157 | ||
158 | if (IS_ZEBRA_DEBUG_RIB) | |
159 | { | |
160 | inet_ntop (p->family, &p->u.prefix, buf, INET6_ADDRSTRLEN); | |
f0f77c9a DS |
161 | zlog_debug ("%u:%s/%d: Redist update re %p (type %d), old %p (type %d)", |
162 | re->vrf_id, buf, p->prefixlen, re, re->type, | |
163 | prev_re, prev_re ? prev_re->type : -1); | |
41ec9222 | 164 | } |
c41fc67b | 165 | |
166 | afi = family2afi(p->family); | |
167 | if (!afi) | |
168 | { | |
169 | zlog_warn("%s: Unknown AFI/SAFI prefix received\n", __FUNCTION__); | |
170 | return; | |
171 | } | |
718e3744 | 172 | |
1eb8ef25 | 173 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) |
174 | { | |
c41fc67b | 175 | send_redistribute = 0; |
176 | ||
f0f77c9a | 177 | if (is_default (p) && vrf_bitmap_check (client->redist_default, re->vrf_id)) |
9c6060d4 | 178 | send_redistribute = 1; |
f0f77c9a | 179 | else if (vrf_bitmap_check (client->redist[afi][ZEBRA_ROUTE_ALL], re->vrf_id)) |
9c6060d4 | 180 | send_redistribute = 1; |
f0f77c9a DS |
181 | else if (re->instance && redist_check_instance (&client->mi_redist[afi][re->type], |
182 | re->instance)) | |
9c6060d4 | 183 | send_redistribute = 1; |
f0f77c9a | 184 | else if (vrf_bitmap_check (client->redist[afi][re->type], re->vrf_id)) |
9c6060d4 | 185 | send_redistribute = 1; |
c41fc67b | 186 | |
187 | if (send_redistribute) | |
188 | { | |
f0f77c9a | 189 | zsend_redistribute_route (1, client, p, src_p, re); |
c41fc67b | 190 | } |
f0f77c9a DS |
191 | else if (prev_re && |
192 | ((re->instance && | |
193 | redist_check_instance(&client->mi_redist[afi][prev_re->type], | |
194 | re->instance)) || | |
195 | vrf_bitmap_check (client->redist[afi][prev_re->type], re->vrf_id))) | |
c41fc67b | 196 | { |
f0f77c9a | 197 | zsend_redistribute_route (0, client, p, src_p, prev_re); |
c41fc67b | 198 | } |
1eb8ef25 | 199 | } |
718e3744 | 200 | } |
201 | ||
202 | void | |
f0f77c9a | 203 | redistribute_delete (struct prefix *p, struct prefix *src_p, struct route_entry *re) |
718e3744 | 204 | { |
1eb8ef25 | 205 | struct listnode *node, *nnode; |
718e3744 | 206 | struct zserv *client; |
41ec9222 | 207 | char buf[INET6_ADDRSTRLEN]; |
10ead5c8 | 208 | int afi; |
41ec9222 | 209 | |
210 | if (IS_ZEBRA_DEBUG_RIB) | |
211 | { | |
212 | inet_ntop (p->family, &p->u.prefix, buf, INET6_ADDRSTRLEN); | |
f0f77c9a DS |
213 | zlog_debug ("%u:%s/%d: Redist delete re %p (type %d)", |
214 | re->vrf_id, buf, p->prefixlen, re, re->type); | |
41ec9222 | 215 | } |
718e3744 | 216 | |
217 | /* Add DISTANCE_INFINITY check. */ | |
f0f77c9a | 218 | if (re->distance == DISTANCE_INFINITY) |
718e3744 | 219 | return; |
220 | ||
10ead5c8 TT |
221 | afi = family2afi(p->family); |
222 | if (!afi) | |
223 | { | |
224 | zlog_warn("%s: Unknown AFI/SAFI prefix received\n", __FUNCTION__); | |
225 | return; | |
226 | } | |
227 | ||
1eb8ef25 | 228 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) |
229 | { | |
10ead5c8 | 230 | if ((is_default (p) && |
f0f77c9a DS |
231 | vrf_bitmap_check (client->redist_default, re->vrf_id)) || |
232 | vrf_bitmap_check (client->redist[afi][ZEBRA_ROUTE_ALL], re->vrf_id) || | |
233 | (re->instance && | |
234 | redist_check_instance(&client->mi_redist[afi][re->type], | |
235 | re->instance)) || | |
236 | vrf_bitmap_check (client->redist[afi][re->type], re->vrf_id)) | |
1eb8ef25 | 237 | { |
f0f77c9a | 238 | zsend_redistribute_route (0, client, p, src_p, re); |
1eb8ef25 | 239 | } |
240 | } | |
718e3744 | 241 | } |
242 | ||
243 | void | |
7076bb2f | 244 | zebra_redistribute_add (int command, struct zserv *client, int length, |
d651649e | 245 | struct zebra_vrf *zvrf) |
718e3744 | 246 | { |
8bb0831e | 247 | afi_t afi; |
718e3744 | 248 | int type; |
7c8ff89e | 249 | u_short instance; |
718e3744 | 250 | |
8bb0831e | 251 | afi = stream_getc (client->ibuf); |
718e3744 | 252 | type = stream_getc (client->ibuf); |
7c8ff89e | 253 | instance = stream_getw (client->ibuf); |
718e3744 | 254 | |
ebf08631 DL |
255 | if (type == 0 || type >= ZEBRA_ROUTE_MAX) |
256 | return; | |
257 | ||
4e1cadf0 | 258 | if (instance) |
718e3744 | 259 | { |
4e1cadf0 RW |
260 | if (! redist_check_instance (&client->mi_redist[afi][type], instance)) |
261 | { | |
262 | redist_add_instance (&client->mi_redist[afi][type], instance); | |
501be987 | 263 | zebra_redistribute (client, type, instance, zvrf_id (zvrf), afi); |
4e1cadf0 RW |
264 | } |
265 | } else { | |
661512bf | 266 | if (! vrf_bitmap_check (client->redist[afi][type], zvrf_id (zvrf))) |
4e1cadf0 | 267 | { |
661512bf | 268 | vrf_bitmap_set (client->redist[afi][type], zvrf_id (zvrf)); |
501be987 | 269 | zebra_redistribute (client, type, 0, zvrf_id (zvrf), afi); |
4e1cadf0 | 270 | } |
9c6060d4 | 271 | } |
ebf08631 | 272 | } |
718e3744 | 273 | |
274 | void | |
7076bb2f | 275 | zebra_redistribute_delete (int command, struct zserv *client, int length, |
d651649e | 276 | struct zebra_vrf *zvrf) |
718e3744 | 277 | { |
8bb0831e | 278 | afi_t afi; |
718e3744 | 279 | int type; |
7c8ff89e | 280 | u_short instance; |
718e3744 | 281 | |
8bb0831e | 282 | afi = stream_getc (client->ibuf); |
718e3744 | 283 | type = stream_getc (client->ibuf); |
7c8ff89e | 284 | instance = stream_getw (client->ibuf); |
718e3744 | 285 | |
ebf08631 DL |
286 | if (type == 0 || type >= ZEBRA_ROUTE_MAX) |
287 | return; | |
288 | ||
4e1cadf0 RW |
289 | /* |
290 | * NOTE: no need to withdraw the previously advertised routes. The clients | |
291 | * themselves should keep track of the received routes from zebra and | |
292 | * withdraw them when necessary. | |
293 | */ | |
294 | if (instance) | |
43e7c3b4 | 295 | redist_del_instance (&client->mi_redist[afi][type], instance); |
4e1cadf0 | 296 | else |
661512bf | 297 | vrf_bitmap_unset (client->redist[afi][type], zvrf_id (zvrf)); |
ebf08631 | 298 | } |
718e3744 | 299 | |
300 | void | |
7076bb2f | 301 | zebra_redistribute_default_add (int command, struct zserv *client, int length, |
d651649e | 302 | struct zebra_vrf *zvrf) |
718e3744 | 303 | { |
661512bf RW |
304 | vrf_bitmap_set (client->redist_default, zvrf_id (zvrf)); |
305 | zebra_redistribute_default (client, zvrf_id (zvrf)); | |
718e3744 | 306 | } |
307 | ||
308 | void | |
309 | zebra_redistribute_default_delete (int command, struct zserv *client, | |
d651649e | 310 | int length, struct zebra_vrf *zvrf) |
718e3744 | 311 | { |
661512bf | 312 | vrf_bitmap_unset (client->redist_default, zvrf_id (zvrf)); |
718e3744 | 313 | } |
314 | ||
315 | /* Interface up information. */ | |
316 | void | |
317 | zebra_interface_up_update (struct interface *ifp) | |
318 | { | |
1eb8ef25 | 319 | struct listnode *node, *nnode; |
718e3744 | 320 | struct zserv *client; |
321 | ||
322 | if (IS_ZEBRA_DEBUG_EVENT) | |
b6178002 | 323 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_UP %s", ifp->name); |
718e3744 | 324 | |
244c1cdc DS |
325 | if (ifp->ptm_status || !ifp->ptm_enable) { |
326 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) | |
16f1b9ee OD |
327 | if (client->ifinfo) |
328 | { | |
329 | zsend_interface_update (ZEBRA_INTERFACE_UP, client, ifp); | |
330 | zsend_interface_link_params (client, ifp); | |
331 | } | |
244c1cdc | 332 | } |
718e3744 | 333 | } |
334 | ||
335 | /* Interface down information. */ | |
336 | void | |
337 | zebra_interface_down_update (struct interface *ifp) | |
338 | { | |
1eb8ef25 | 339 | struct listnode *node, *nnode; |
718e3744 | 340 | struct zserv *client; |
341 | ||
342 | if (IS_ZEBRA_DEBUG_EVENT) | |
b6178002 | 343 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_DOWN %s", ifp->name); |
718e3744 | 344 | |
1eb8ef25 | 345 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) |
04b02fda DS |
346 | { |
347 | zsend_interface_update (ZEBRA_INTERFACE_DOWN, client, ifp); | |
348 | } | |
718e3744 | 349 | } |
350 | ||
351 | /* Interface information update. */ | |
352 | void | |
353 | zebra_interface_add_update (struct interface *ifp) | |
354 | { | |
1eb8ef25 | 355 | struct listnode *node, *nnode; |
718e3744 | 356 | struct zserv *client; |
357 | ||
358 | if (IS_ZEBRA_DEBUG_EVENT) | |
4fe51714 | 359 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_ADD %s[%d]", ifp->name, ifp->vrf_id); |
718e3744 | 360 | |
1eb8ef25 | 361 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) |
16f1b9ee OD |
362 | if (client->ifinfo) |
363 | { | |
364 | client->ifadd_cnt++; | |
365 | zsend_interface_add (client, ifp); | |
366 | zsend_interface_link_params (client, ifp); | |
367 | } | |
718e3744 | 368 | } |
369 | ||
370 | void | |
371 | zebra_interface_delete_update (struct interface *ifp) | |
372 | { | |
1eb8ef25 | 373 | struct listnode *node, *nnode; |
718e3744 | 374 | struct zserv *client; |
375 | ||
376 | if (IS_ZEBRA_DEBUG_EVENT) | |
b6178002 | 377 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_DELETE %s", ifp->name); |
718e3744 | 378 | |
1eb8ef25 | 379 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) |
4fe51714 DS |
380 | { |
381 | client->ifdel_cnt++; | |
382 | zsend_interface_delete (client, ifp); | |
383 | } | |
718e3744 | 384 | } |
385 | ||
386 | /* Interface address addition. */ | |
387 | void | |
388 | zebra_interface_address_add_update (struct interface *ifp, | |
389 | struct connected *ifc) | |
390 | { | |
1eb8ef25 | 391 | struct listnode *node, *nnode; |
718e3744 | 392 | struct zserv *client; |
393 | struct prefix *p; | |
718e3744 | 394 | |
395 | if (IS_ZEBRA_DEBUG_EVENT) | |
396 | { | |
35d921cc | 397 | char buf[PREFIX_STRLEN]; |
81cce018 | 398 | |
718e3744 | 399 | p = ifc->address; |
35d921cc TT |
400 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_ADDRESS_ADD %s on %s", |
401 | prefix2str (p, buf, sizeof(buf)), | |
402 | ifc->ifp->name); | |
718e3744 | 403 | } |
404 | ||
c7df92de CF |
405 | if (!CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) |
406 | zlog_warn("WARNING: advertising address to clients that is not yet usable."); | |
407 | ||
18a6dce6 | 408 | router_id_add_address(ifc); |
409 | ||
1eb8ef25 | 410 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) |
4fe51714 | 411 | if (CHECK_FLAG (ifc->conf, ZEBRA_IFC_REAL)) |
04b02fda DS |
412 | { |
413 | client->connected_rt_add_cnt++; | |
414 | zsend_interface_address (ZEBRA_INTERFACE_ADDRESS_ADD, client, ifp, ifc); | |
415 | } | |
718e3744 | 416 | } |
417 | ||
418 | /* Interface address deletion. */ | |
419 | void | |
420 | zebra_interface_address_delete_update (struct interface *ifp, | |
421 | struct connected *ifc) | |
422 | { | |
1eb8ef25 | 423 | struct listnode *node, *nnode; |
718e3744 | 424 | struct zserv *client; |
425 | struct prefix *p; | |
718e3744 | 426 | |
427 | if (IS_ZEBRA_DEBUG_EVENT) | |
428 | { | |
35d921cc | 429 | char buf[PREFIX_STRLEN]; |
81cce018 | 430 | |
718e3744 | 431 | p = ifc->address; |
35d921cc TT |
432 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_ADDRESS_DELETE %s on %s", |
433 | prefix2str (p, buf, sizeof(buf)), | |
434 | ifc->ifp->name); | |
718e3744 | 435 | } |
436 | ||
18a6dce6 | 437 | router_id_del_address(ifc); |
438 | ||
1eb8ef25 | 439 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) |
4fe51714 | 440 | if (CHECK_FLAG (ifc->conf, ZEBRA_IFC_REAL)) |
04b02fda DS |
441 | { |
442 | client->connected_rt_del_cnt++; | |
443 | zsend_interface_address (ZEBRA_INTERFACE_ADDRESS_DELETE, client, ifp, ifc); | |
444 | } | |
718e3744 | 445 | } |
d5a5c8f0 | 446 | |
c8e264b6 | 447 | /* Interface VRF change. May need to delete from clients not interested in |
448 | * the new VRF. Note that this function is invoked *prior* to the VRF change. | |
449 | */ | |
450 | void | |
451 | zebra_interface_vrf_update_del (struct interface *ifp, vrf_id_t new_vrf_id) | |
452 | { | |
453 | struct listnode *node, *nnode; | |
454 | struct zserv *client; | |
455 | ||
456 | if (IS_ZEBRA_DEBUG_EVENT) | |
457 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_VRF_UPDATE/DEL %s VRF Id %u -> %u", | |
458 | ifp->name, ifp->vrf_id, new_vrf_id); | |
459 | ||
460 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) | |
461 | { | |
4fe51714 DS |
462 | /* Need to delete if the client is not interested in the new VRF. */ |
463 | zsend_interface_update (ZEBRA_INTERFACE_DOWN, client, ifp); | |
464 | client->ifdel_cnt++; | |
465 | zsend_interface_delete (client, ifp); | |
466 | zsend_interface_vrf_update (client, ifp, new_vrf_id); | |
c8e264b6 | 467 | } |
468 | } | |
469 | ||
470 | /* Interface VRF change. This function is invoked *post* VRF change and sends an | |
471 | * add to clients who are interested in the new VRF but not in the old VRF. | |
472 | */ | |
473 | void | |
474 | zebra_interface_vrf_update_add (struct interface *ifp, vrf_id_t old_vrf_id) | |
475 | { | |
476 | struct listnode *node, *nnode; | |
477 | struct zserv *client; | |
478 | ||
479 | if (IS_ZEBRA_DEBUG_EVENT) | |
480 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_VRF_UPDATE/ADD %s VRF Id %u -> %u", | |
481 | ifp->name, old_vrf_id, ifp->vrf_id); | |
482 | ||
483 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) | |
484 | { | |
c8e264b6 | 485 | /* Need to add if the client is interested in the new VRF. */ |
486 | client->ifadd_cnt++; | |
487 | zsend_interface_add (client, ifp); | |
488 | zsend_interface_addresses (client, ifp); | |
489 | } | |
490 | } | |
491 | ||
7a4bb9c5 | 492 | int |
f0f77c9a | 493 | zebra_add_import_table_entry (struct route_node *rn, struct route_entry *re, const char *rmap_name) |
7a4bb9c5 | 494 | { |
f0f77c9a DS |
495 | struct route_entry *newre; |
496 | struct route_entry *same; | |
3b1098be | 497 | struct prefix p; |
7a4bb9c5 | 498 | struct nexthop *nhop; |
3b1098be | 499 | union g_addr *gate; |
8902474b | 500 | route_map_result_t ret = RMAP_MATCH; |
7a4bb9c5 | 501 | |
8902474b | 502 | if (rmap_name) |
f0f77c9a DS |
503 | ret = zebra_import_table_route_map_check (AFI_IP, re->type, &rn->p, re->nexthop, re->vrf_id, |
504 | re->tag, rmap_name); | |
8902474b DS |
505 | |
506 | if (ret == RMAP_MATCH) | |
7a4bb9c5 | 507 | { |
8902474b DS |
508 | if (rn->p.family == AF_INET) |
509 | { | |
3b1098be DS |
510 | p.family = AF_INET; |
511 | p.prefixlen = rn->p.prefixlen; | |
512 | p.u.prefix4 = rn->p.u.prefix4; | |
7a4bb9c5 | 513 | |
f0f77c9a | 514 | RNODE_FOREACH_RE (rn, same) |
47301614 | 515 | { |
f0f77c9a | 516 | if (CHECK_FLAG (same->status, ROUTE_ENTRY_REMOVED)) |
47301614 DS |
517 | continue; |
518 | ||
f0f77c9a DS |
519 | if (same->type == re->type && same->instance == re->instance |
520 | && same->table == re->table | |
47301614 DS |
521 | && same->type != ZEBRA_ROUTE_CONNECT) |
522 | break; | |
523 | } | |
524 | ||
525 | if (same) | |
526 | zebra_del_import_table_entry (rn, same); | |
527 | ||
528 | ||
f0f77c9a | 529 | if (re->nexthop_num == 1) |
8902474b | 530 | { |
f0f77c9a | 531 | nhop = re->nexthop; |
8902474b DS |
532 | if (nhop->type == NEXTHOP_TYPE_IFINDEX) |
533 | gate = NULL; | |
534 | else | |
3b1098be DS |
535 | gate = (union g_addr *)&nhop->gate.ipv4; |
536 | ||
f0f77c9a DS |
537 | rib_add (AFI_IP, SAFI_UNICAST, re->vrf_id, ZEBRA_ROUTE_TABLE, |
538 | re->table, 0, &p, NULL, gate, (union g_addr *)&nhop->src.ipv4, | |
3b1098be | 539 | nhop->ifindex, zebrad.rtm_table_default, |
f0f77c9a DS |
540 | re->metric, re->mtu, |
541 | zebra_import_table_distance[AFI_IP][re->table]); | |
8902474b | 542 | } |
f0f77c9a | 543 | else if (re->nexthop_num > 1) |
8902474b | 544 | { |
f0f77c9a DS |
545 | newre = XCALLOC (MTYPE_RE, sizeof (struct route_entry)); |
546 | newre->type = ZEBRA_ROUTE_TABLE; | |
547 | newre->distance = zebra_import_table_distance[AFI_IP][re->table]; | |
548 | newre->flags = re->flags; | |
549 | newre->metric = re->metric; | |
550 | newre->mtu = re->mtu; | |
551 | newre->table = zebrad.rtm_table_default; | |
552 | newre->nexthop_num = 0; | |
553 | newre->uptime = time(NULL); | |
554 | newre->instance = re->table; | |
8902474b DS |
555 | |
556 | /* Assuming these routes are never recursive */ | |
f0f77c9a DS |
557 | for (nhop = re->nexthop; nhop; nhop = nhop->next) |
558 | route_entry_copy_nexthops(newre, nhop); | |
8902474b | 559 | |
f0f77c9a | 560 | rib_add_multipath(AFI_IP, SAFI_UNICAST, &p, NULL, newre); |
8902474b DS |
561 | } |
562 | } | |
563 | } | |
564 | else | |
565 | { | |
f0f77c9a | 566 | zebra_del_import_table_entry (rn, re); |
7a4bb9c5 DS |
567 | } |
568 | /* DD: Add IPv6 code */ | |
569 | return 0; | |
570 | } | |
571 | ||
572 | int | |
f0f77c9a | 573 | zebra_del_import_table_entry (struct route_node *rn, struct route_entry *re) |
7a4bb9c5 | 574 | { |
616368ed | 575 | struct prefix p; |
7a4bb9c5 DS |
576 | |
577 | if (rn->p.family == AF_INET) | |
578 | { | |
616368ed DS |
579 | p.family = AF_INET; |
580 | p.prefixlen = rn->p.prefixlen; | |
581 | p.u.prefix4 = rn->p.u.prefix4; | |
7a4bb9c5 | 582 | |
f0f77c9a DS |
583 | rib_delete (AFI_IP, SAFI_UNICAST, re->vrf_id, ZEBRA_ROUTE_TABLE, |
584 | re->table, re->flags, &p, NULL, NULL, | |
616368ed | 585 | 0, zebrad.rtm_table_default); |
7a4bb9c5 DS |
586 | } |
587 | /* DD: Add IPv6 code */ | |
588 | ||
589 | return 0; | |
590 | } | |
591 | ||
592 | /* Assuming no one calls this with the main routing table */ | |
593 | int | |
8902474b | 594 | zebra_import_table (afi_t afi, u_int32_t table_id, u_int32_t distance, const char *rmap_name, int add) |
7a4bb9c5 DS |
595 | { |
596 | struct route_table *table; | |
f0f77c9a | 597 | struct route_entry *re; |
7a4bb9c5 DS |
598 | struct route_node *rn; |
599 | ||
600 | if (!is_zebra_valid_kernel_table(table_id) || | |
601 | ((table_id == RT_TABLE_MAIN) || (table_id == zebrad.rtm_table_default))) | |
602 | return (-1); | |
603 | ||
604 | if (afi >= AFI_MAX) | |
605 | return (-1); | |
606 | ||
b72ede27 | 607 | table = zebra_vrf_other_route_table(afi, table_id, VRF_DEFAULT); |
7a4bb9c5 DS |
608 | if (table == NULL) |
609 | { | |
610 | return 0; | |
611 | } | |
612 | else if (IS_ZEBRA_DEBUG_RIB) | |
613 | { | |
614 | zlog_debug ("%s routes from table %d", | |
615 | add ? "Importing" : "Unimporting", table_id); | |
616 | } | |
617 | ||
618 | if (add) | |
619 | { | |
8902474b DS |
620 | if (rmap_name) |
621 | zebra_add_import_table_route_map (afi, rmap_name, table_id); | |
622 | else | |
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); | |
627 | } | |
628 | ||
032bfaaf | 629 | zebra_import_table_used[afi][table_id] = 1; |
7a4bb9c5 DS |
630 | zebra_import_table_distance[afi][table_id] = distance; |
631 | } | |
632 | else | |
633 | { | |
032bfaaf | 634 | zebra_import_table_used[afi][table_id] = 0; |
7a4bb9c5 | 635 | zebra_import_table_distance[afi][table_id] = ZEBRA_TABLE_DISTANCE_DEFAULT; |
8902474b DS |
636 | |
637 | rmap_name = zebra_get_import_table_route_map (afi, table_id); | |
638 | if (rmap_name) | |
639 | zebra_del_import_table_route_map (afi, table_id); | |
7a4bb9c5 DS |
640 | } |
641 | ||
642 | for (rn = route_top(table); rn; rn = route_next(rn)) | |
643 | { | |
644 | /* For each entry in the non-default routing table, | |
645 | * add the entry in the main table | |
646 | */ | |
647 | if (!rn->info) | |
648 | continue; | |
649 | ||
f0f77c9a | 650 | RNODE_FOREACH_RE (rn, re) |
7a4bb9c5 | 651 | { |
f0f77c9a | 652 | if (CHECK_FLAG (re->status, ROUTE_ENTRY_REMOVED)) |
7a4bb9c5 DS |
653 | continue; |
654 | break; | |
655 | } | |
656 | ||
f0f77c9a | 657 | if (!re) |
7a4bb9c5 DS |
658 | continue; |
659 | ||
4e3afb14 DS |
660 | if (((afi == AFI_IP) && (rn->p.family == AF_INET)) || |
661 | ((afi == AFI_IP6) && (rn->p.family == AF_INET6))) | |
7a4bb9c5 DS |
662 | { |
663 | if (add) | |
f0f77c9a | 664 | zebra_add_import_table_entry (rn, re, rmap_name); |
7a4bb9c5 | 665 | else |
f0f77c9a | 666 | zebra_del_import_table_entry (rn, re); |
7a4bb9c5 DS |
667 | } |
668 | } | |
669 | return 0; | |
670 | } | |
671 | ||
672 | int | |
673 | zebra_import_table_config (struct vty *vty) | |
674 | { | |
675 | int i; | |
676 | afi_t afi; | |
677 | int write = 0; | |
032bfaaf | 678 | char afi_str[AFI_MAX][10] = {"", "ip", "ipv6", "ethernet"}; |
8902474b | 679 | const char *rmap_name; |
7a4bb9c5 DS |
680 | |
681 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
682 | { | |
683 | for (i = 1; i < ZEBRA_KERNEL_TABLE_MAX; i++) | |
684 | { | |
685 | if (is_zebra_import_table_enabled(afi, i)) | |
686 | { | |
687 | if (zebra_import_table_distance[afi][i] != ZEBRA_TABLE_DISTANCE_DEFAULT) | |
688 | { | |
8902474b DS |
689 | vty_out(vty, "%s import-table %d distance %d", afi_str[afi], |
690 | i, zebra_import_table_distance[afi][i]); | |
7a4bb9c5 DS |
691 | } |
692 | else | |
693 | { | |
8902474b | 694 | vty_out(vty, "%s import-table %d", afi_str[afi], i); |
7a4bb9c5 | 695 | } |
8902474b DS |
696 | |
697 | rmap_name = zebra_get_import_table_route_map (afi, i); | |
698 | if (rmap_name) | |
699 | vty_out(vty, " route-map %s", rmap_name); | |
700 | ||
e31b6333 | 701 | vty_out (vty, VTYNL); |
7a4bb9c5 DS |
702 | write = 1; |
703 | } | |
704 | } | |
705 | } | |
706 | ||
707 | return write; | |
708 | } | |
8902474b DS |
709 | |
710 | void | |
711 | zebra_import_table_rm_update () | |
712 | { | |
713 | afi_t afi; | |
714 | int i; | |
715 | struct route_table *table; | |
f0f77c9a | 716 | struct route_entry *re; |
8902474b DS |
717 | struct route_node *rn; |
718 | const char *rmap_name; | |
719 | ||
720 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
721 | { | |
722 | for (i = 1; i < ZEBRA_KERNEL_TABLE_MAX; i++) | |
723 | { | |
724 | if (is_zebra_import_table_enabled(afi, i)) | |
725 | { | |
726 | rmap_name = zebra_get_import_table_route_map (afi, i); | |
727 | if (!rmap_name) | |
728 | return; | |
729 | ||
730 | table = zebra_vrf_other_route_table(afi, i, VRF_DEFAULT); | |
731 | for (rn = route_top(table); rn; rn = route_next(rn)) | |
732 | { | |
733 | /* For each entry in the non-default routing table, | |
734 | * add the entry in the main table | |
735 | */ | |
736 | if (!rn->info) | |
737 | continue; | |
738 | ||
f0f77c9a | 739 | RNODE_FOREACH_RE (rn, re) |
8902474b | 740 | { |
f0f77c9a | 741 | if (CHECK_FLAG (re->status, ROUTE_ENTRY_REMOVED)) |
8902474b DS |
742 | continue; |
743 | break; | |
744 | } | |
745 | ||
f0f77c9a | 746 | if (!re) |
8902474b DS |
747 | continue; |
748 | ||
749 | if (((afi == AFI_IP) && (rn->p.family == AF_INET)) || | |
750 | ((afi == AFI_IP6) && (rn->p.family == AF_INET6))) | |
f0f77c9a | 751 | zebra_add_import_table_entry (rn, re, rmap_name); |
8902474b DS |
752 | } |
753 | } | |
754 | } | |
755 | } | |
756 | ||
757 | return; | |
758 | } | |
16f1b9ee OD |
759 | |
760 | /* Interface parameters update */ | |
761 | void | |
762 | zebra_interface_parameters_update (struct interface *ifp) | |
763 | { | |
764 | struct listnode *node, *nnode; | |
765 | struct zserv *client; | |
766 | ||
767 | if (IS_ZEBRA_DEBUG_EVENT) | |
768 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_LINK_PARAMS %s", ifp->name); | |
769 | ||
770 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) | |
771 | if (client->ifinfo) | |
772 | zsend_interface_link_params (client, ifp); | |
773 | } |