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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 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with GNU Zebra; see the file COPYING. If not, write to the Free | |
18 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
19 | * 02111-1307, USA. | |
20 | */ | |
21 | ||
22 | #include <zebra.h> | |
23 | ||
24 | #include "vector.h" | |
25 | #include "vty.h" | |
26 | #include "command.h" | |
27 | #include "prefix.h" | |
28 | #include "table.h" | |
29 | #include "stream.h" | |
30 | #include "zclient.h" | |
31 | #include "linklist.h" | |
32 | #include "log.h" | |
b72ede27 | 33 | #include "vrf.h" |
05737783 | 34 | #include "srcdest_table.h" |
718e3744 | 35 | |
36 | #include "zebra/rib.h" | |
37 | #include "zebra/zserv.h" | |
7c551956 DS |
38 | #include "zebra/zebra_ns.h" |
39 | #include "zebra/zebra_vrf.h" | |
8902474b | 40 | #include "zebra/zebra_routemap.h" |
718e3744 | 41 | #include "zebra/redistribute.h" |
42 | #include "zebra/debug.h" | |
18a6dce6 | 43 | #include "zebra/router-id.h" |
4a1ab8e4 | 44 | #include "zebra/zebra_memory.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 | ||
53 | int | |
54 | is_zebra_import_table_enabled(afi_t afi, u_int32_t table_id) | |
55 | { | |
56 | if (is_zebra_valid_kernel_table(table_id)) | |
032bfaaf | 57 | return zebra_import_table_used[afi][table_id]; |
7a4bb9c5 DS |
58 | return 0; |
59 | } | |
60 | ||
7076bb2f | 61 | int |
718e3744 | 62 | is_default (struct prefix *p) |
63 | { | |
64 | if (p->family == AF_INET) | |
65 | if (p->u.prefix4.s_addr == 0 && p->prefixlen == 0) | |
66 | return 1; | |
718e3744 | 67 | #if 0 /* IPv6 default separation is now pending until protocol daemon |
68 | can handle that. */ | |
69 | if (p->family == AF_INET6) | |
70 | if (IN6_IS_ADDR_UNSPECIFIED (&p->u.prefix6) && p->prefixlen == 0) | |
71 | return 1; | |
72 | #endif /* 0 */ | |
718e3744 | 73 | return 0; |
74 | } | |
75 | ||
27da3988 | 76 | static void |
7076bb2f | 77 | zebra_redistribute_default (struct zserv *client, vrf_id_t vrf_id) |
718e3744 | 78 | { |
9c6060d4 RW |
79 | int afi; |
80 | struct prefix p; | |
718e3744 | 81 | struct route_table *table; |
82 | struct route_node *rn; | |
83 | struct rib *newrib; | |
718e3744 | 84 | |
9c6060d4 | 85 | for (afi = AFI_IP; afi <= AFI_IP6; afi++) |
718e3744 | 86 | { |
9c6060d4 RW |
87 | /* Lookup table. */ |
88 | table = zebra_vrf_table (afi, SAFI_UNICAST, vrf_id); | |
89 | if (! table) | |
90 | continue; | |
91 | ||
92 | /* Lookup default route. */ | |
93 | memset (&p, 0, sizeof (p)); | |
94 | p.family = afi2family (afi); | |
95 | rn = route_node_lookup (table, &p); | |
96 | if (! rn) | |
97 | continue; | |
718e3744 | 98 | |
9c6060d4 RW |
99 | RNODE_FOREACH_RIB (rn, newrib) |
100 | if (CHECK_FLAG (newrib->flags, ZEBRA_FLAG_SELECTED) | |
101 | && newrib->distance != DISTANCE_INFINITY) | |
05737783 | 102 | zsend_redistribute_route (1, client, &rn->p, NULL, newrib); |
718e3744 | 103 | |
9c6060d4 | 104 | route_unlock_node (rn); |
718e3744 | 105 | } |
718e3744 | 106 | } |
107 | ||
108 | /* Redistribute routes. */ | |
27da3988 | 109 | static void |
7076bb2f | 110 | zebra_redistribute (struct zserv *client, int type, u_short instance, vrf_id_t vrf_id) |
718e3744 | 111 | { |
112 | struct rib *newrib; | |
113 | struct route_table *table; | |
114 | struct route_node *rn; | |
9c6060d4 | 115 | int afi; |
718e3744 | 116 | |
9c6060d4 RW |
117 | for (afi = AFI_IP; afi <= AFI_IP6; afi++) |
118 | { | |
119 | table = zebra_vrf_table (afi, SAFI_UNICAST, vrf_id); | |
120 | if (! table) | |
121 | continue; | |
122 | ||
123 | for (rn = route_top (table); rn; rn = route_next (rn)) | |
124 | RNODE_FOREACH_RIB (rn, newrib) | |
04b02fda | 125 | { |
05737783 CF |
126 | struct prefix *dst_p, *src_p; |
127 | srcdest_rnode_prefixes(rn, &dst_p, &src_p); | |
128 | ||
9c6060d4 RW |
129 | if (IS_ZEBRA_DEBUG_EVENT) |
130 | zlog_debug("%s: checking: selected=%d, type=%d, distance=%d, " | |
131 | "zebra_check_addr=%d", __func__, | |
132 | CHECK_FLAG (newrib->flags, ZEBRA_FLAG_SELECTED), | |
133 | newrib->type, newrib->distance, | |
05737783 | 134 | zebra_check_addr (dst_p)); |
9c6060d4 RW |
135 | |
136 | if (! CHECK_FLAG (newrib->flags, ZEBRA_FLAG_SELECTED)) | |
137 | continue; | |
138 | if ((type != ZEBRA_ROUTE_ALL && | |
139 | (newrib->type != type || newrib->instance != instance))) | |
140 | continue; | |
141 | if (newrib->distance == DISTANCE_INFINITY) | |
142 | continue; | |
05737783 | 143 | if (! zebra_check_addr (dst_p)) |
9c6060d4 RW |
144 | continue; |
145 | ||
05737783 | 146 | zsend_redistribute_route (1, client, dst_p, src_p, newrib); |
04b02fda | 147 | } |
9c6060d4 | 148 | } |
718e3744 | 149 | } |
150 | ||
c41fc67b | 151 | /* Either advertise a route for redistribution to registered clients or */ |
152 | /* withdraw redistribution if add cannot be done for client */ | |
718e3744 | 153 | void |
05737783 CF |
154 | redistribute_update (struct prefix *p, struct prefix *src_p, |
155 | struct rib *rib, struct rib *prev_rib) | |
718e3744 | 156 | { |
1eb8ef25 | 157 | struct listnode *node, *nnode; |
718e3744 | 158 | struct zserv *client; |
c41fc67b | 159 | int send_redistribute; |
160 | int afi; | |
41ec9222 | 161 | char buf[INET6_ADDRSTRLEN]; |
162 | ||
163 | if (IS_ZEBRA_DEBUG_RIB) | |
164 | { | |
165 | inet_ntop (p->family, &p->u.prefix, buf, INET6_ADDRSTRLEN); | |
166 | zlog_debug ("%u:%s/%d: Redist update rib %p (type %d), old %p (type %d)", | |
167 | rib->vrf_id, buf, p->prefixlen, rib, rib->type, | |
168 | prev_rib, prev_rib ? prev_rib->type : -1); | |
169 | } | |
c41fc67b | 170 | |
171 | afi = family2afi(p->family); | |
172 | if (!afi) | |
173 | { | |
174 | zlog_warn("%s: Unknown AFI/SAFI prefix received\n", __FUNCTION__); | |
175 | return; | |
176 | } | |
718e3744 | 177 | |
1eb8ef25 | 178 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) |
179 | { | |
c41fc67b | 180 | send_redistribute = 0; |
181 | ||
83c65574 | 182 | if (is_default (p) && vrf_bitmap_check (client->redist_default, rib->vrf_id)) |
9c6060d4 RW |
183 | send_redistribute = 1; |
184 | else if (vrf_bitmap_check (client->redist[afi][ZEBRA_ROUTE_ALL], rib->vrf_id)) | |
185 | send_redistribute = 1; | |
186 | else if (rib->instance && redist_check_instance (&client->mi_redist[afi][rib->type], | |
187 | rib->instance)) | |
188 | send_redistribute = 1; | |
83c65574 | 189 | else if (vrf_bitmap_check (client->redist[afi][rib->type], rib->vrf_id)) |
9c6060d4 | 190 | send_redistribute = 1; |
c41fc67b | 191 | |
192 | if (send_redistribute) | |
193 | { | |
05737783 | 194 | zsend_redistribute_route (1, client, p, src_p, rib); |
c41fc67b | 195 | } |
196 | else if (prev_rib && | |
7076bb2f FL |
197 | ((rib->instance && |
198 | redist_check_instance(&client->mi_redist[afi][prev_rib->type], | |
199 | rib->instance)) || | |
200 | vrf_bitmap_check (client->redist[afi][prev_rib->type], rib->vrf_id))) | |
c41fc67b | 201 | { |
05737783 | 202 | zsend_redistribute_route (0, client, p, src_p, prev_rib); |
c41fc67b | 203 | } |
1eb8ef25 | 204 | } |
718e3744 | 205 | } |
206 | ||
207 | void | |
05737783 | 208 | redistribute_delete (struct prefix *p, struct prefix *src_p, struct rib *rib) |
718e3744 | 209 | { |
1eb8ef25 | 210 | struct listnode *node, *nnode; |
718e3744 | 211 | struct zserv *client; |
41ec9222 | 212 | char buf[INET6_ADDRSTRLEN]; |
10ead5c8 | 213 | int afi; |
41ec9222 | 214 | |
215 | if (IS_ZEBRA_DEBUG_RIB) | |
216 | { | |
217 | inet_ntop (p->family, &p->u.prefix, buf, INET6_ADDRSTRLEN); | |
218 | zlog_debug ("%u:%s/%d: Redist delete rib %p (type %d)", | |
219 | rib->vrf_id, buf, p->prefixlen, rib, rib->type); | |
220 | } | |
718e3744 | 221 | |
222 | /* Add DISTANCE_INFINITY check. */ | |
223 | if (rib->distance == DISTANCE_INFINITY) | |
224 | return; | |
225 | ||
10ead5c8 TT |
226 | afi = family2afi(p->family); |
227 | if (!afi) | |
228 | { | |
229 | zlog_warn("%s: Unknown AFI/SAFI prefix received\n", __FUNCTION__); | |
230 | return; | |
231 | } | |
232 | ||
1eb8ef25 | 233 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) |
234 | { | |
10ead5c8 TT |
235 | if ((is_default (p) && |
236 | vrf_bitmap_check (client->redist_default, rib->vrf_id)) || | |
a695cc7b | 237 | vrf_bitmap_check (client->redist[afi][ZEBRA_ROUTE_ALL], rib->vrf_id) || |
10ead5c8 TT |
238 | (rib->instance && |
239 | redist_check_instance(&client->mi_redist[afi][rib->type], | |
240 | rib->instance)) || | |
241 | vrf_bitmap_check (client->redist[afi][rib->type], rib->vrf_id)) | |
1eb8ef25 | 242 | { |
05737783 | 243 | zsend_redistribute_route (0, client, p, src_p, rib); |
1eb8ef25 | 244 | } |
245 | } | |
718e3744 | 246 | } |
247 | ||
248 | void | |
7076bb2f | 249 | zebra_redistribute_add (int command, struct zserv *client, int length, |
d651649e | 250 | struct zebra_vrf *zvrf) |
718e3744 | 251 | { |
8bb0831e | 252 | afi_t afi; |
718e3744 | 253 | int type; |
7c8ff89e | 254 | u_short instance; |
718e3744 | 255 | |
8bb0831e | 256 | afi = stream_getc (client->ibuf); |
718e3744 | 257 | type = stream_getc (client->ibuf); |
7c8ff89e | 258 | instance = stream_getw (client->ibuf); |
718e3744 | 259 | |
ebf08631 DL |
260 | if (type == 0 || type >= ZEBRA_ROUTE_MAX) |
261 | return; | |
262 | ||
4e1cadf0 | 263 | if (instance) |
718e3744 | 264 | { |
4e1cadf0 RW |
265 | if (! redist_check_instance (&client->mi_redist[afi][type], instance)) |
266 | { | |
267 | redist_add_instance (&client->mi_redist[afi][type], instance); | |
661512bf | 268 | zebra_redistribute (client, type, instance, zvrf_id (zvrf)); |
4e1cadf0 RW |
269 | } |
270 | } else { | |
661512bf | 271 | if (! vrf_bitmap_check (client->redist[afi][type], zvrf_id (zvrf))) |
4e1cadf0 | 272 | { |
661512bf RW |
273 | vrf_bitmap_set (client->redist[afi][type], zvrf_id (zvrf)); |
274 | zebra_redistribute (client, type, 0, zvrf_id (zvrf)); | |
4e1cadf0 | 275 | } |
9c6060d4 | 276 | } |
ebf08631 | 277 | } |
718e3744 | 278 | |
279 | void | |
7076bb2f | 280 | zebra_redistribute_delete (int command, struct zserv *client, int length, |
d651649e | 281 | struct zebra_vrf *zvrf) |
718e3744 | 282 | { |
8bb0831e | 283 | afi_t afi; |
718e3744 | 284 | int type; |
7c8ff89e | 285 | u_short instance; |
718e3744 | 286 | |
8bb0831e | 287 | afi = stream_getc (client->ibuf); |
718e3744 | 288 | type = stream_getc (client->ibuf); |
7c8ff89e | 289 | instance = stream_getw (client->ibuf); |
718e3744 | 290 | |
ebf08631 DL |
291 | if (type == 0 || type >= ZEBRA_ROUTE_MAX) |
292 | return; | |
293 | ||
4e1cadf0 RW |
294 | /* |
295 | * NOTE: no need to withdraw the previously advertised routes. The clients | |
296 | * themselves should keep track of the received routes from zebra and | |
297 | * withdraw them when necessary. | |
298 | */ | |
299 | if (instance) | |
43e7c3b4 | 300 | redist_del_instance (&client->mi_redist[afi][type], instance); |
4e1cadf0 | 301 | else |
661512bf | 302 | vrf_bitmap_unset (client->redist[afi][type], zvrf_id (zvrf)); |
ebf08631 | 303 | } |
718e3744 | 304 | |
305 | void | |
7076bb2f | 306 | zebra_redistribute_default_add (int command, struct zserv *client, int length, |
d651649e | 307 | struct zebra_vrf *zvrf) |
718e3744 | 308 | { |
661512bf RW |
309 | vrf_bitmap_set (client->redist_default, zvrf_id (zvrf)); |
310 | zebra_redistribute_default (client, zvrf_id (zvrf)); | |
718e3744 | 311 | } |
312 | ||
313 | void | |
314 | zebra_redistribute_default_delete (int command, struct zserv *client, | |
d651649e | 315 | int length, struct zebra_vrf *zvrf) |
718e3744 | 316 | { |
661512bf | 317 | vrf_bitmap_unset (client->redist_default, zvrf_id (zvrf)); |
718e3744 | 318 | } |
319 | ||
320 | /* Interface up information. */ | |
321 | void | |
322 | zebra_interface_up_update (struct interface *ifp) | |
323 | { | |
1eb8ef25 | 324 | struct listnode *node, *nnode; |
718e3744 | 325 | struct zserv *client; |
326 | ||
327 | if (IS_ZEBRA_DEBUG_EVENT) | |
b6178002 | 328 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_UP %s", ifp->name); |
718e3744 | 329 | |
244c1cdc DS |
330 | if (ifp->ptm_status || !ifp->ptm_enable) { |
331 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) | |
16f1b9ee OD |
332 | if (client->ifinfo) |
333 | { | |
334 | zsend_interface_update (ZEBRA_INTERFACE_UP, client, ifp); | |
335 | zsend_interface_link_params (client, ifp); | |
336 | } | |
244c1cdc | 337 | } |
718e3744 | 338 | } |
339 | ||
340 | /* Interface down information. */ | |
341 | void | |
342 | zebra_interface_down_update (struct interface *ifp) | |
343 | { | |
1eb8ef25 | 344 | struct listnode *node, *nnode; |
718e3744 | 345 | struct zserv *client; |
346 | ||
347 | if (IS_ZEBRA_DEBUG_EVENT) | |
b6178002 | 348 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_DOWN %s", ifp->name); |
718e3744 | 349 | |
1eb8ef25 | 350 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) |
04b02fda DS |
351 | { |
352 | zsend_interface_update (ZEBRA_INTERFACE_DOWN, client, ifp); | |
353 | } | |
718e3744 | 354 | } |
355 | ||
356 | /* Interface information update. */ | |
357 | void | |
358 | zebra_interface_add_update (struct interface *ifp) | |
359 | { | |
1eb8ef25 | 360 | struct listnode *node, *nnode; |
718e3744 | 361 | struct zserv *client; |
362 | ||
363 | if (IS_ZEBRA_DEBUG_EVENT) | |
4fe51714 | 364 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_ADD %s[%d]", ifp->name, ifp->vrf_id); |
718e3744 | 365 | |
1eb8ef25 | 366 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) |
16f1b9ee OD |
367 | if (client->ifinfo) |
368 | { | |
369 | client->ifadd_cnt++; | |
370 | zsend_interface_add (client, ifp); | |
371 | zsend_interface_link_params (client, ifp); | |
372 | } | |
718e3744 | 373 | } |
374 | ||
375 | void | |
376 | zebra_interface_delete_update (struct interface *ifp) | |
377 | { | |
1eb8ef25 | 378 | struct listnode *node, *nnode; |
718e3744 | 379 | struct zserv *client; |
380 | ||
381 | if (IS_ZEBRA_DEBUG_EVENT) | |
b6178002 | 382 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_DELETE %s", ifp->name); |
718e3744 | 383 | |
1eb8ef25 | 384 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) |
4fe51714 DS |
385 | { |
386 | client->ifdel_cnt++; | |
387 | zsend_interface_delete (client, ifp); | |
388 | } | |
718e3744 | 389 | } |
390 | ||
391 | /* Interface address addition. */ | |
392 | void | |
393 | zebra_interface_address_add_update (struct interface *ifp, | |
394 | struct connected *ifc) | |
395 | { | |
1eb8ef25 | 396 | struct listnode *node, *nnode; |
718e3744 | 397 | struct zserv *client; |
398 | struct prefix *p; | |
718e3744 | 399 | |
400 | if (IS_ZEBRA_DEBUG_EVENT) | |
401 | { | |
35d921cc | 402 | char buf[PREFIX_STRLEN]; |
81cce018 | 403 | |
718e3744 | 404 | p = ifc->address; |
35d921cc TT |
405 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_ADDRESS_ADD %s on %s", |
406 | prefix2str (p, buf, sizeof(buf)), | |
407 | ifc->ifp->name); | |
718e3744 | 408 | } |
409 | ||
c7df92de CF |
410 | if (!CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) |
411 | zlog_warn("WARNING: advertising address to clients that is not yet usable."); | |
412 | ||
18a6dce6 | 413 | router_id_add_address(ifc); |
414 | ||
1eb8ef25 | 415 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) |
4fe51714 | 416 | if (CHECK_FLAG (ifc->conf, ZEBRA_IFC_REAL)) |
04b02fda DS |
417 | { |
418 | client->connected_rt_add_cnt++; | |
419 | zsend_interface_address (ZEBRA_INTERFACE_ADDRESS_ADD, client, ifp, ifc); | |
420 | } | |
718e3744 | 421 | } |
422 | ||
423 | /* Interface address deletion. */ | |
424 | void | |
425 | zebra_interface_address_delete_update (struct interface *ifp, | |
426 | struct connected *ifc) | |
427 | { | |
1eb8ef25 | 428 | struct listnode *node, *nnode; |
718e3744 | 429 | struct zserv *client; |
430 | struct prefix *p; | |
718e3744 | 431 | |
432 | if (IS_ZEBRA_DEBUG_EVENT) | |
433 | { | |
35d921cc | 434 | char buf[PREFIX_STRLEN]; |
81cce018 | 435 | |
718e3744 | 436 | p = ifc->address; |
35d921cc TT |
437 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_ADDRESS_DELETE %s on %s", |
438 | prefix2str (p, buf, sizeof(buf)), | |
439 | ifc->ifp->name); | |
718e3744 | 440 | } |
441 | ||
18a6dce6 | 442 | router_id_del_address(ifc); |
443 | ||
1eb8ef25 | 444 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) |
4fe51714 | 445 | if (CHECK_FLAG (ifc->conf, ZEBRA_IFC_REAL)) |
04b02fda DS |
446 | { |
447 | client->connected_rt_del_cnt++; | |
448 | zsend_interface_address (ZEBRA_INTERFACE_ADDRESS_DELETE, client, ifp, ifc); | |
449 | } | |
718e3744 | 450 | } |
d5a5c8f0 | 451 | |
c8e264b6 | 452 | /* Interface VRF change. May need to delete from clients not interested in |
453 | * the new VRF. Note that this function is invoked *prior* to the VRF change. | |
454 | */ | |
455 | void | |
456 | zebra_interface_vrf_update_del (struct interface *ifp, vrf_id_t new_vrf_id) | |
457 | { | |
458 | struct listnode *node, *nnode; | |
459 | struct zserv *client; | |
460 | ||
461 | if (IS_ZEBRA_DEBUG_EVENT) | |
462 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_VRF_UPDATE/DEL %s VRF Id %u -> %u", | |
463 | ifp->name, ifp->vrf_id, new_vrf_id); | |
464 | ||
465 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) | |
466 | { | |
4fe51714 DS |
467 | /* Need to delete if the client is not interested in the new VRF. */ |
468 | zsend_interface_update (ZEBRA_INTERFACE_DOWN, client, ifp); | |
469 | client->ifdel_cnt++; | |
470 | zsend_interface_delete (client, ifp); | |
471 | zsend_interface_vrf_update (client, ifp, new_vrf_id); | |
c8e264b6 | 472 | } |
473 | } | |
474 | ||
475 | /* Interface VRF change. This function is invoked *post* VRF change and sends an | |
476 | * add to clients who are interested in the new VRF but not in the old VRF. | |
477 | */ | |
478 | void | |
479 | zebra_interface_vrf_update_add (struct interface *ifp, vrf_id_t old_vrf_id) | |
480 | { | |
481 | struct listnode *node, *nnode; | |
482 | struct zserv *client; | |
483 | ||
484 | if (IS_ZEBRA_DEBUG_EVENT) | |
485 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_VRF_UPDATE/ADD %s VRF Id %u -> %u", | |
486 | ifp->name, old_vrf_id, ifp->vrf_id); | |
487 | ||
488 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) | |
489 | { | |
c8e264b6 | 490 | /* Need to add if the client is interested in the new VRF. */ |
491 | client->ifadd_cnt++; | |
492 | zsend_interface_add (client, ifp); | |
493 | zsend_interface_addresses (client, ifp); | |
494 | } | |
495 | } | |
496 | ||
7a4bb9c5 | 497 | int |
8902474b | 498 | zebra_add_import_table_entry (struct route_node *rn, struct rib *rib, const char *rmap_name) |
7a4bb9c5 DS |
499 | { |
500 | struct rib *newrib; | |
3b1098be | 501 | struct prefix p; |
7a4bb9c5 | 502 | struct nexthop *nhop; |
3b1098be | 503 | union g_addr *gate; |
8902474b | 504 | route_map_result_t ret = RMAP_MATCH; |
7a4bb9c5 | 505 | |
8902474b DS |
506 | if (rmap_name) |
507 | ret = zebra_import_table_route_map_check (AFI_IP, rib->type, &rn->p, rib->nexthop, rib->vrf_id, | |
508 | rib->tag, rmap_name); | |
509 | ||
510 | if (ret == RMAP_MATCH) | |
7a4bb9c5 | 511 | { |
8902474b DS |
512 | if (rn->p.family == AF_INET) |
513 | { | |
3b1098be DS |
514 | p.family = AF_INET; |
515 | p.prefixlen = rn->p.prefixlen; | |
516 | p.u.prefix4 = rn->p.u.prefix4; | |
7a4bb9c5 | 517 | |
8902474b DS |
518 | if (rib->nexthop_num == 1) |
519 | { | |
520 | nhop = rib->nexthop; | |
521 | if (nhop->type == NEXTHOP_TYPE_IFINDEX) | |
522 | gate = NULL; | |
523 | else | |
3b1098be DS |
524 | gate = (union g_addr *)&nhop->gate.ipv4; |
525 | ||
526 | rib_add (AFI_IP, SAFI_UNICAST, rib->vrf_id, ZEBRA_ROUTE_TABLE, | |
3c7c91d0 | 527 | rib->table, 0, &p, NULL, gate, (union g_addr *)&nhop->src.ipv4, |
3b1098be DS |
528 | nhop->ifindex, zebrad.rtm_table_default, |
529 | rib->metric, rib->mtu, | |
530 | zebra_import_table_distance[AFI_IP][rib->table]); | |
8902474b DS |
531 | } |
532 | else if (rib->nexthop_num > 1) | |
533 | { | |
534 | newrib = XCALLOC (MTYPE_RIB, sizeof (struct rib)); | |
535 | newrib->type = ZEBRA_ROUTE_TABLE; | |
536 | newrib->distance = zebra_import_table_distance[AFI_IP][rib->table]; | |
537 | newrib->flags = rib->flags; | |
538 | newrib->metric = rib->metric; | |
c50ca33a | 539 | newrib->mtu = rib->mtu; |
8902474b DS |
540 | newrib->table = zebrad.rtm_table_default; |
541 | newrib->nexthop_num = 0; | |
542 | newrib->uptime = time(NULL); | |
543 | newrib->instance = rib->table; | |
544 | ||
545 | /* Assuming these routes are never recursive */ | |
546 | for (nhop = rib->nexthop; nhop; nhop = nhop->next) | |
547 | rib_copy_nexthops(newrib, nhop); | |
548 | ||
3c7c91d0 | 549 | rib_add_multipath(AFI_IP, SAFI_UNICAST, &p, NULL, newrib); |
8902474b DS |
550 | } |
551 | } | |
552 | } | |
553 | else | |
554 | { | |
555 | zebra_del_import_table_entry (rn, rib); | |
7a4bb9c5 DS |
556 | } |
557 | /* DD: Add IPv6 code */ | |
558 | return 0; | |
559 | } | |
560 | ||
561 | int | |
562 | zebra_del_import_table_entry (struct route_node *rn, struct rib *rib) | |
563 | { | |
616368ed | 564 | struct prefix p; |
7a4bb9c5 DS |
565 | |
566 | if (rn->p.family == AF_INET) | |
567 | { | |
616368ed DS |
568 | p.family = AF_INET; |
569 | p.prefixlen = rn->p.prefixlen; | |
570 | p.u.prefix4 = rn->p.u.prefix4; | |
7a4bb9c5 | 571 | |
616368ed | 572 | rib_delete (AFI_IP, SAFI_UNICAST, rib->vrf_id, ZEBRA_ROUTE_TABLE, |
3c7c91d0 | 573 | rib->table, rib->flags, &p, NULL, NULL, |
616368ed | 574 | 0, zebrad.rtm_table_default); |
7a4bb9c5 DS |
575 | } |
576 | /* DD: Add IPv6 code */ | |
577 | ||
578 | return 0; | |
579 | } | |
580 | ||
581 | /* Assuming no one calls this with the main routing table */ | |
582 | int | |
8902474b | 583 | zebra_import_table (afi_t afi, u_int32_t table_id, u_int32_t distance, const char *rmap_name, int add) |
7a4bb9c5 DS |
584 | { |
585 | struct route_table *table; | |
586 | struct rib *rib; | |
587 | struct route_node *rn; | |
588 | ||
589 | if (!is_zebra_valid_kernel_table(table_id) || | |
590 | ((table_id == RT_TABLE_MAIN) || (table_id == zebrad.rtm_table_default))) | |
591 | return (-1); | |
592 | ||
593 | if (afi >= AFI_MAX) | |
594 | return (-1); | |
595 | ||
b72ede27 | 596 | table = zebra_vrf_other_route_table(afi, table_id, VRF_DEFAULT); |
7a4bb9c5 DS |
597 | if (table == NULL) |
598 | { | |
599 | return 0; | |
600 | } | |
601 | else if (IS_ZEBRA_DEBUG_RIB) | |
602 | { | |
603 | zlog_debug ("%s routes from table %d", | |
604 | add ? "Importing" : "Unimporting", table_id); | |
605 | } | |
606 | ||
607 | if (add) | |
608 | { | |
8902474b DS |
609 | if (rmap_name) |
610 | zebra_add_import_table_route_map (afi, rmap_name, table_id); | |
611 | else | |
612 | { | |
613 | rmap_name = zebra_get_import_table_route_map (afi, table_id); | |
614 | if (rmap_name) | |
615 | zebra_del_import_table_route_map (afi, table_id); | |
616 | } | |
617 | ||
032bfaaf | 618 | zebra_import_table_used[afi][table_id] = 1; |
7a4bb9c5 DS |
619 | zebra_import_table_distance[afi][table_id] = distance; |
620 | } | |
621 | else | |
622 | { | |
032bfaaf | 623 | zebra_import_table_used[afi][table_id] = 0; |
7a4bb9c5 | 624 | zebra_import_table_distance[afi][table_id] = ZEBRA_TABLE_DISTANCE_DEFAULT; |
8902474b DS |
625 | |
626 | rmap_name = zebra_get_import_table_route_map (afi, table_id); | |
627 | if (rmap_name) | |
628 | zebra_del_import_table_route_map (afi, table_id); | |
7a4bb9c5 DS |
629 | } |
630 | ||
631 | for (rn = route_top(table); rn; rn = route_next(rn)) | |
632 | { | |
633 | /* For each entry in the non-default routing table, | |
634 | * add the entry in the main table | |
635 | */ | |
636 | if (!rn->info) | |
637 | continue; | |
638 | ||
639 | RNODE_FOREACH_RIB (rn, rib) | |
640 | { | |
641 | if (CHECK_FLAG (rib->status, RIB_ENTRY_REMOVED)) | |
642 | continue; | |
643 | break; | |
644 | } | |
645 | ||
646 | if (!rib) | |
647 | continue; | |
648 | ||
4e3afb14 DS |
649 | if (((afi == AFI_IP) && (rn->p.family == AF_INET)) || |
650 | ((afi == AFI_IP6) && (rn->p.family == AF_INET6))) | |
7a4bb9c5 DS |
651 | { |
652 | if (add) | |
8902474b | 653 | zebra_add_import_table_entry (rn, rib, rmap_name); |
7a4bb9c5 DS |
654 | else |
655 | zebra_del_import_table_entry (rn, rib); | |
656 | } | |
657 | } | |
658 | return 0; | |
659 | } | |
660 | ||
661 | int | |
662 | zebra_import_table_config (struct vty *vty) | |
663 | { | |
664 | int i; | |
665 | afi_t afi; | |
666 | int write = 0; | |
032bfaaf | 667 | char afi_str[AFI_MAX][10] = {"", "ip", "ipv6", "ethernet"}; |
8902474b | 668 | const char *rmap_name; |
7a4bb9c5 DS |
669 | |
670 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
671 | { | |
672 | for (i = 1; i < ZEBRA_KERNEL_TABLE_MAX; i++) | |
673 | { | |
674 | if (is_zebra_import_table_enabled(afi, i)) | |
675 | { | |
676 | if (zebra_import_table_distance[afi][i] != ZEBRA_TABLE_DISTANCE_DEFAULT) | |
677 | { | |
8902474b DS |
678 | vty_out(vty, "%s import-table %d distance %d", afi_str[afi], |
679 | i, zebra_import_table_distance[afi][i]); | |
7a4bb9c5 DS |
680 | } |
681 | else | |
682 | { | |
8902474b | 683 | vty_out(vty, "%s import-table %d", afi_str[afi], i); |
7a4bb9c5 | 684 | } |
8902474b DS |
685 | |
686 | rmap_name = zebra_get_import_table_route_map (afi, i); | |
687 | if (rmap_name) | |
688 | vty_out(vty, " route-map %s", rmap_name); | |
689 | ||
690 | vty_out(vty, "%s", VTY_NEWLINE); | |
7a4bb9c5 DS |
691 | write = 1; |
692 | } | |
693 | } | |
694 | } | |
695 | ||
696 | return write; | |
697 | } | |
8902474b DS |
698 | |
699 | void | |
700 | zebra_import_table_rm_update () | |
701 | { | |
702 | afi_t afi; | |
703 | int i; | |
704 | struct route_table *table; | |
705 | struct rib *rib; | |
706 | struct route_node *rn; | |
707 | const char *rmap_name; | |
708 | ||
709 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
710 | { | |
711 | for (i = 1; i < ZEBRA_KERNEL_TABLE_MAX; i++) | |
712 | { | |
713 | if (is_zebra_import_table_enabled(afi, i)) | |
714 | { | |
715 | rmap_name = zebra_get_import_table_route_map (afi, i); | |
716 | if (!rmap_name) | |
717 | return; | |
718 | ||
719 | table = zebra_vrf_other_route_table(afi, i, VRF_DEFAULT); | |
720 | for (rn = route_top(table); rn; rn = route_next(rn)) | |
721 | { | |
722 | /* For each entry in the non-default routing table, | |
723 | * add the entry in the main table | |
724 | */ | |
725 | if (!rn->info) | |
726 | continue; | |
727 | ||
728 | RNODE_FOREACH_RIB (rn, rib) | |
729 | { | |
730 | if (CHECK_FLAG (rib->status, RIB_ENTRY_REMOVED)) | |
731 | continue; | |
732 | break; | |
733 | } | |
734 | ||
735 | if (!rib) | |
736 | continue; | |
737 | ||
738 | if (((afi == AFI_IP) && (rn->p.family == AF_INET)) || | |
739 | ((afi == AFI_IP6) && (rn->p.family == AF_INET6))) | |
740 | zebra_add_import_table_entry (rn, rib, rmap_name); | |
741 | } | |
742 | } | |
743 | } | |
744 | } | |
745 | ||
746 | return; | |
747 | } | |
16f1b9ee OD |
748 | |
749 | /* Interface parameters update */ | |
750 | void | |
751 | zebra_interface_parameters_update (struct interface *ifp) | |
752 | { | |
753 | struct listnode *node, *nnode; | |
754 | struct zserv *client; | |
755 | ||
756 | if (IS_ZEBRA_DEBUG_EVENT) | |
757 | zlog_debug ("MESSAGE: ZEBRA_INTERFACE_LINK_PARAMS %s", ifp->name); | |
758 | ||
759 | for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) | |
760 | if (client->ifinfo) | |
761 | zsend_interface_link_params (client, ifp); | |
762 | } |