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718e3744 | 1 | /* |
2 | * Zebra connect library for OSPFd | |
3 | * Copyright (C) 1997, 98, 99, 2000 Kunihiro Ishiguro, Toshiaki Takada | |
4 | * | |
5 | * This file is part of GNU Zebra. | |
6 | * | |
7 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2, or (at your option) any | |
10 | * later version. | |
11 | * | |
12 | * GNU Zebra is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with GNU Zebra; see the file COPYING. If not, write to the | |
19 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | * Boston, MA 02111-1307, USA. | |
21 | */ | |
22 | ||
23 | #include <zebra.h> | |
24 | ||
25 | #include "thread.h" | |
26 | #include "command.h" | |
27 | #include "network.h" | |
28 | #include "prefix.h" | |
29 | #include "routemap.h" | |
30 | #include "table.h" | |
31 | #include "stream.h" | |
32 | #include "memory.h" | |
33 | #include "zclient.h" | |
34 | #include "filter.h" | |
dd669bb0 | 35 | #include "plist.h" |
718e3744 | 36 | #include "log.h" |
37 | ||
38 | #include "ospfd/ospfd.h" | |
39 | #include "ospfd/ospf_interface.h" | |
40 | #include "ospfd/ospf_ism.h" | |
41 | #include "ospfd/ospf_asbr.h" | |
42 | #include "ospfd/ospf_asbr.h" | |
43 | #include "ospfd/ospf_abr.h" | |
44 | #include "ospfd/ospf_lsa.h" | |
45 | #include "ospfd/ospf_dump.h" | |
46 | #include "ospfd/ospf_route.h" | |
47 | #include "ospfd/ospf_zebra.h" | |
48 | #ifdef HAVE_SNMP | |
49 | #include "ospfd/ospf_snmp.h" | |
50 | #endif /* HAVE_SNMP */ | |
51 | ||
52 | /* Zebra structure to hold current status. */ | |
53 | struct zclient *zclient = NULL; | |
54 | ||
55 | /* For registering threads. */ | |
56 | extern struct thread_master *master; | |
18a6dce6 | 57 | struct in_addr router_id_zebra; |
58 | ||
59 | /* Router-id update message from zebra. */ | |
4dadc291 | 60 | static int |
18a6dce6 | 61 | ospf_router_id_update_zebra (int command, struct zclient *zclient, |
62 | zebra_size_t length) | |
63 | { | |
64 | struct ospf *ospf; | |
65 | struct prefix router_id; | |
66 | zebra_router_id_update_read(zclient->ibuf,&router_id); | |
67 | ||
7f643ebf AS |
68 | if (IS_DEBUG_OSPF (zebra, ZEBRA_INTERFACE)) |
69 | { | |
70 | char buf[128]; | |
71 | prefix2str(&router_id, buf, sizeof(buf)); | |
72 | zlog_debug("Zebra rcvd: router id update %s", buf); | |
73 | } | |
74 | ||
18a6dce6 | 75 | router_id_zebra = router_id.u.prefix4; |
76 | ||
77 | ospf = ospf_lookup (); | |
b29800a6 | 78 | |
18a6dce6 | 79 | if (ospf != NULL) |
b29800a6 | 80 | ospf_router_id_update (ospf); |
81 | ||
18a6dce6 | 82 | return 0; |
83 | } | |
718e3744 | 84 | |
85 | /* Inteface addition message from zebra. */ | |
4dadc291 | 86 | static int |
718e3744 | 87 | ospf_interface_add (int command, struct zclient *zclient, zebra_size_t length) |
88 | { | |
89 | struct interface *ifp; | |
90 | ||
91 | ifp = zebra_interface_add_read (zclient->ibuf); | |
92 | ||
93 | if (IS_DEBUG_OSPF (zebra, ZEBRA_INTERFACE)) | |
30d20590 SH |
94 | zlog_debug ("Zebra: interface add %s index %d flags %llx metric %d mtu %d", |
95 | ifp->name, ifp->ifindex, (unsigned long long)ifp->flags, | |
96 | ifp->metric, ifp->mtu); | |
718e3744 | 97 | |
cf795c5d | 98 | assert (ifp->info); |
f2c80652 | 99 | |
718e3744 | 100 | if (!OSPF_IF_PARAM_CONFIGURED (IF_DEF_PARAMS (ifp), type)) |
101 | { | |
102 | SET_IF_PARAM (IF_DEF_PARAMS (ifp), type); | |
bc18d616 | 103 | IF_DEF_PARAMS (ifp)->type = ospf_default_iftype(ifp); |
718e3744 | 104 | } |
105 | ||
a49eb30a | 106 | ospf_if_update (NULL, ifp); |
718e3744 | 107 | |
108 | #ifdef HAVE_SNMP | |
109 | ospf_snmp_if_update (ifp); | |
110 | #endif /* HAVE_SNMP */ | |
111 | ||
112 | return 0; | |
113 | } | |
114 | ||
4dadc291 | 115 | static int |
718e3744 | 116 | ospf_interface_delete (int command, struct zclient *zclient, |
cf795c5d | 117 | zebra_size_t length) |
718e3744 | 118 | { |
119 | struct interface *ifp; | |
120 | struct stream *s; | |
121 | struct route_node *rn; | |
122 | ||
cf795c5d | 123 | s = zclient->ibuf; |
718e3744 | 124 | /* zebra_interface_state_read() updates interface structure in iflist */ |
125 | ifp = zebra_interface_state_read (s); | |
126 | ||
127 | if (ifp == NULL) | |
128 | return 0; | |
129 | ||
130 | if (if_is_up (ifp)) | |
131 | zlog_warn ("Zebra: got delete of %s, but interface is still up", | |
cf795c5d | 132 | ifp->name); |
133 | ||
718e3744 | 134 | if (IS_DEBUG_OSPF (zebra, ZEBRA_INTERFACE)) |
9b0e25c0 | 135 | zlog_debug |
30d20590 | 136 | ("Zebra: interface delete %s index %d flags %lld metric %d mtu %d", |
cf795c5d | 137 | ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu); |
718e3744 | 138 | |
139 | #ifdef HAVE_SNMP | |
140 | ospf_snmp_if_delete (ifp); | |
141 | #endif /* HAVE_SNMP */ | |
142 | ||
143 | for (rn = route_top (IF_OIFS (ifp)); rn; rn = route_next (rn)) | |
144 | if (rn->info) | |
145 | ospf_if_free ((struct ospf_interface *) rn->info); | |
146 | ||
d2fc8896 | 147 | ifp->ifindex = IFINDEX_INTERNAL; |
718e3744 | 148 | return 0; |
149 | } | |
150 | ||
d2fc8896 | 151 | static struct interface * |
718e3744 | 152 | zebra_interface_if_lookup (struct stream *s) |
153 | { | |
21fefa98 | 154 | char ifname_tmp[INTERFACE_NAMSIZ]; |
718e3744 | 155 | |
156 | /* Read interface name. */ | |
157 | stream_get (ifname_tmp, s, INTERFACE_NAMSIZ); | |
158 | ||
d2fc8896 | 159 | /* And look it up. */ |
21fefa98 | 160 | return if_lookup_by_name_len(ifname_tmp, |
161 | strnlen(ifname_tmp, INTERFACE_NAMSIZ)); | |
718e3744 | 162 | } |
163 | ||
4dadc291 | 164 | static int |
718e3744 | 165 | ospf_interface_state_up (int command, struct zclient *zclient, |
cf795c5d | 166 | zebra_size_t length) |
718e3744 | 167 | { |
168 | struct interface *ifp; | |
718e3744 | 169 | struct ospf_interface *oi; |
170 | struct route_node *rn; | |
cf795c5d | 171 | |
718e3744 | 172 | ifp = zebra_interface_if_lookup (zclient->ibuf); |
173 | ||
174 | if (ifp == NULL) | |
175 | return 0; | |
176 | ||
177 | /* Interface is already up. */ | |
2e3b2e47 | 178 | if (if_is_operative (ifp)) |
718e3744 | 179 | { |
180 | /* Temporarily keep ifp values. */ | |
a608bbf2 | 181 | struct interface if_tmp; |
718e3744 | 182 | memcpy (&if_tmp, ifp, sizeof (struct interface)); |
183 | ||
184 | zebra_interface_if_set_value (zclient->ibuf, ifp); | |
185 | ||
186 | if (IS_DEBUG_OSPF (zebra, ZEBRA_INTERFACE)) | |
9b0e25c0 | 187 | zlog_debug ("Zebra: Interface[%s] state update.", ifp->name); |
718e3744 | 188 | |
189 | if (if_tmp.bandwidth != ifp->bandwidth) | |
cf795c5d | 190 | { |
191 | if (IS_DEBUG_OSPF (zebra, ZEBRA_INTERFACE)) | |
9b0e25c0 | 192 | zlog_debug ("Zebra: Interface[%s] bandwidth change %d -> %d.", |
cf795c5d | 193 | ifp->name, if_tmp.bandwidth, ifp->bandwidth); |
718e3744 | 194 | |
cf795c5d | 195 | ospf_if_recalculate_output_cost (ifp); |
196 | } | |
a608bbf2 | 197 | |
198 | if (if_tmp.mtu != ifp->mtu) | |
199 | { | |
200 | if (IS_DEBUG_OSPF (zebra, ZEBRA_INTERFACE)) | |
201 | zlog_debug ("Zebra: Interface[%s] MTU change %u -> %u.", | |
202 | ifp->name, if_tmp.mtu, ifp->mtu); | |
203 | ||
204 | /* Must reset the interface (simulate down/up) when MTU changes. */ | |
205 | ospf_if_reset(ifp); | |
206 | } | |
718e3744 | 207 | return 0; |
208 | } | |
cf795c5d | 209 | |
718e3744 | 210 | zebra_interface_if_set_value (zclient->ibuf, ifp); |
cf795c5d | 211 | |
718e3744 | 212 | if (IS_DEBUG_OSPF (zebra, ZEBRA_INTERFACE)) |
9b0e25c0 | 213 | zlog_debug ("Zebra: Interface[%s] state change to up.", ifp->name); |
cf795c5d | 214 | |
215 | for (rn = route_top (IF_OIFS (ifp)); rn; rn = route_next (rn)) | |
718e3744 | 216 | { |
cf795c5d | 217 | if ((oi = rn->info) == NULL) |
218 | continue; | |
219 | ||
718e3744 | 220 | ospf_if_up (oi); |
221 | } | |
cf795c5d | 222 | |
718e3744 | 223 | return 0; |
224 | } | |
225 | ||
4dadc291 | 226 | static int |
718e3744 | 227 | ospf_interface_state_down (int command, struct zclient *zclient, |
cf795c5d | 228 | zebra_size_t length) |
718e3744 | 229 | { |
230 | struct interface *ifp; | |
231 | struct ospf_interface *oi; | |
232 | struct route_node *node; | |
233 | ||
234 | ifp = zebra_interface_state_read (zclient->ibuf); | |
235 | ||
236 | if (ifp == NULL) | |
237 | return 0; | |
238 | ||
239 | if (IS_DEBUG_OSPF (zebra, ZEBRA_INTERFACE)) | |
9b0e25c0 | 240 | zlog_debug ("Zebra: Interface[%s] state change to down.", ifp->name); |
718e3744 | 241 | |
cf795c5d | 242 | for (node = route_top (IF_OIFS (ifp)); node; node = route_next (node)) |
718e3744 | 243 | { |
cf795c5d | 244 | if ((oi = node->info) == NULL) |
245 | continue; | |
718e3744 | 246 | ospf_if_down (oi); |
247 | } | |
248 | ||
249 | return 0; | |
250 | } | |
251 | ||
4dadc291 | 252 | static int |
718e3744 | 253 | ospf_interface_address_add (int command, struct zclient *zclient, |
cf795c5d | 254 | zebra_size_t length) |
718e3744 | 255 | { |
256 | struct connected *c; | |
257 | ||
0a589359 | 258 | c = zebra_interface_address_read (command, zclient->ibuf); |
718e3744 | 259 | |
260 | if (c == NULL) | |
261 | return 0; | |
262 | ||
7f643ebf AS |
263 | if (IS_DEBUG_OSPF (zebra, ZEBRA_INTERFACE)) |
264 | { | |
265 | char buf[128]; | |
266 | prefix2str(c->address, buf, sizeof(buf)); | |
267 | zlog_debug("Zebra: interface %s address add %s", c->ifp->name, buf); | |
268 | } | |
269 | ||
a49eb30a | 270 | ospf_if_update (NULL, c->ifp); |
718e3744 | 271 | |
272 | #ifdef HAVE_SNMP | |
273 | ospf_snmp_if_update (c->ifp); | |
274 | #endif /* HAVE_SNMP */ | |
275 | ||
276 | return 0; | |
277 | } | |
278 | ||
4dadc291 | 279 | static int |
718e3744 | 280 | ospf_interface_address_delete (int command, struct zclient *zclient, |
cf795c5d | 281 | zebra_size_t length) |
718e3744 | 282 | { |
283 | struct connected *c; | |
284 | struct interface *ifp; | |
285 | struct ospf_interface *oi; | |
286 | struct route_node *rn; | |
287 | struct prefix p; | |
288 | ||
0a589359 | 289 | c = zebra_interface_address_read (command, zclient->ibuf); |
718e3744 | 290 | |
291 | if (c == NULL) | |
292 | return 0; | |
293 | ||
7f643ebf AS |
294 | if (IS_DEBUG_OSPF (zebra, ZEBRA_INTERFACE)) |
295 | { | |
296 | char buf[128]; | |
297 | prefix2str(c->address, buf, sizeof(buf)); | |
298 | zlog_debug("Zebra: interface %s address delete %s", c->ifp->name, buf); | |
299 | } | |
300 | ||
718e3744 | 301 | ifp = c->ifp; |
302 | p = *c->address; | |
303 | p.prefixlen = IPV4_MAX_PREFIXLEN; | |
304 | ||
305 | rn = route_node_lookup (IF_OIFS (ifp), &p); | |
cf795c5d | 306 | if (!rn) |
98429f6d | 307 | { |
308 | connected_free (c); | |
309 | return 0; | |
310 | } | |
718e3744 | 311 | |
312 | assert (rn->info); | |
313 | oi = rn->info; | |
cf795c5d | 314 | |
718e3744 | 315 | /* Call interface hook functions to clean up */ |
316 | ospf_if_free (oi); | |
cf795c5d | 317 | |
718e3744 | 318 | #ifdef HAVE_SNMP |
319 | ospf_snmp_if_update (c->ifp); | |
320 | #endif /* HAVE_SNMP */ | |
321 | ||
322 | connected_free (c); | |
323 | ||
718e3744 | 324 | return 0; |
325 | } | |
72357f2b | 326 | |
718e3744 | 327 | void |
328 | ospf_zebra_add (struct prefix_ipv4 *p, struct ospf_route *or) | |
329 | { | |
330 | u_char message; | |
331 | u_char distance; | |
332 | u_char flags; | |
333 | int psize; | |
334 | struct stream *s; | |
335 | struct ospf_path *path; | |
52dc7ee6 | 336 | struct listnode *node; |
718e3744 | 337 | |
338 | if (zclient->redist[ZEBRA_ROUTE_OSPF]) | |
339 | { | |
340 | message = 0; | |
341 | flags = 0; | |
342 | ||
343 | /* OSPF pass nexthop and metric */ | |
344 | SET_FLAG (message, ZAPI_MESSAGE_NEXTHOP); | |
345 | SET_FLAG (message, ZAPI_MESSAGE_METRIC); | |
346 | ||
347 | /* Distance value. */ | |
348 | distance = ospf_distance_apply (p, or); | |
349 | if (distance) | |
72357f2b | 350 | SET_FLAG (message, ZAPI_MESSAGE_DISTANCE); |
718e3744 | 351 | |
352 | /* Make packet. */ | |
353 | s = zclient->obuf; | |
354 | stream_reset (s); | |
355 | ||
718e3744 | 356 | /* Put command, type, flags, message. */ |
c6371718 | 357 | zclient_create_header (s, ZEBRA_IPV4_ROUTE_ADD); |
718e3744 | 358 | stream_putc (s, ZEBRA_ROUTE_OSPF); |
359 | stream_putc (s, flags); | |
360 | stream_putc (s, message); | |
b4e45f67 | 361 | stream_putw (s, SAFI_UNICAST); |
cf795c5d | 362 | |
718e3744 | 363 | /* Put prefix information. */ |
364 | psize = PSIZE (p->prefixlen); | |
365 | stream_putc (s, p->prefixlen); | |
cf795c5d | 366 | stream_write (s, (u_char *) & p->prefix, psize); |
718e3744 | 367 | |
368 | /* Nexthop count. */ | |
96735eea | 369 | stream_putc (s, or->paths->count); |
718e3744 | 370 | |
371 | /* Nexthop, ifindex, distance and metric information. */ | |
1eb8ef25 | 372 | for (ALL_LIST_ELEMENTS_RO (or->paths, node, path)) |
72357f2b | 373 | { |
cf795c5d | 374 | if (path->nexthop.s_addr != INADDR_ANY) |
375 | { | |
376 | stream_putc (s, ZEBRA_NEXTHOP_IPV4); | |
377 | stream_put_in_addr (s, &path->nexthop); | |
378 | } | |
379 | else | |
380 | { | |
381 | stream_putc (s, ZEBRA_NEXTHOP_IFINDEX); | |
a8ba847f JT |
382 | if (path->ifindex) |
383 | stream_putl (s, path->ifindex); | |
cf795c5d | 384 | else |
385 | stream_putl (s, 0); | |
386 | } | |
72357f2b | 387 | |
388 | if (IS_DEBUG_OSPF (zebra, ZEBRA_REDISTRIBUTE)) | |
389 | { | |
56b3ea09 AS |
390 | char buf[2][INET_ADDRSTRLEN]; |
391 | zlog_debug("Zebra: Route add %s/%d nexthop %s", | |
392 | inet_ntop(AF_INET, &p->prefix, | |
393 | buf[0], sizeof(buf[0])), | |
394 | p->prefixlen, | |
395 | inet_ntop(AF_INET, &path->nexthop, | |
396 | buf[1], sizeof(buf[1]))); | |
cf795c5d | 397 | } |
398 | } | |
718e3744 | 399 | |
400 | if (CHECK_FLAG (message, ZAPI_MESSAGE_DISTANCE)) | |
cf795c5d | 401 | stream_putc (s, distance); |
718e3744 | 402 | if (CHECK_FLAG (message, ZAPI_MESSAGE_METRIC)) |
cf795c5d | 403 | { |
404 | if (or->path_type == OSPF_PATH_TYPE1_EXTERNAL) | |
405 | stream_putl (s, or->cost + or->u.ext.type2_cost); | |
406 | else if (or->path_type == OSPF_PATH_TYPE2_EXTERNAL) | |
407 | stream_putl (s, or->u.ext.type2_cost); | |
408 | else | |
409 | stream_putl (s, or->cost); | |
410 | } | |
718e3744 | 411 | |
412 | stream_putw_at (s, 0, stream_get_endp (s)); | |
413 | ||
634f9ea2 | 414 | zclient_send_message(zclient); |
718e3744 | 415 | } |
416 | } | |
417 | ||
418 | void | |
419 | ospf_zebra_delete (struct prefix_ipv4 *p, struct ospf_route *or) | |
420 | { | |
421 | struct zapi_ipv4 api; | |
72357f2b | 422 | struct ospf_path *path; |
423 | struct in_addr *nexthop; | |
1eb8ef25 | 424 | struct listnode *node, *nnode; |
718e3744 | 425 | |
426 | if (zclient->redist[ZEBRA_ROUTE_OSPF]) | |
427 | { | |
428 | api.type = ZEBRA_ROUTE_OSPF; | |
429 | api.flags = 0; | |
430 | api.message = 0; | |
b4e45f67 | 431 | api.safi = SAFI_UNICAST; |
72357f2b | 432 | api.ifindex_num = 0; |
433 | api.nexthop_num = 0; | |
718e3744 | 434 | |
1eb8ef25 | 435 | for (ALL_LIST_ELEMENTS (or->paths, node, nnode, path)) |
cf795c5d | 436 | { |
cf795c5d | 437 | if (path->nexthop.s_addr != INADDR_ANY) |
438 | { | |
d8e1d6bc | 439 | SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP); |
cf795c5d | 440 | api.nexthop_num = 1; |
441 | nexthop = &path->nexthop; | |
442 | api.nexthop = &nexthop; | |
443 | } | |
a8ba847f | 444 | else if (if_lookup_by_index(path->ifindex)) |
bb8ff1e7 | 445 | { |
446 | SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP); | |
447 | api.ifindex_num = 1; | |
a8ba847f | 448 | api.ifindex = &path->ifindex; |
bb8ff1e7 | 449 | } |
450 | else if ( IS_DEBUG_OSPF(zebra,ZEBRA_REDISTRIBUTE) ) | |
451 | { | |
9b0e25c0 | 452 | zlog_debug("Zebra: no ifp %s %d", |
bb8ff1e7 | 453 | inet_ntoa(p->prefix), |
454 | p->prefixlen); | |
455 | } | |
72357f2b | 456 | |
0a589359 | 457 | zapi_ipv4_route (ZEBRA_IPV4_ROUTE_DELETE, zclient, p, &api); |
72357f2b | 458 | |
459 | if (IS_DEBUG_OSPF (zebra, ZEBRA_REDISTRIBUTE) && api.nexthop_num) | |
cf795c5d | 460 | { |
56b3ea09 AS |
461 | char buf[2][INET_ADDRSTRLEN]; |
462 | zlog_debug("Zebra: Route delete %s/%d nexthop %s", | |
463 | inet_ntop(AF_INET, &p->prefix, buf[0], sizeof(buf[0])), | |
464 | p->prefixlen, | |
465 | inet_ntop(AF_INET, *api.nexthop, | |
466 | buf[1], sizeof(buf[1]))); | |
cf795c5d | 467 | } |
bb8ff1e7 | 468 | if (IS_DEBUG_OSPF (zebra, ZEBRA_REDISTRIBUTE) && api.ifindex_num) |
469 | { | |
9b0e25c0 | 470 | zlog_debug ("Zebra: Route delete %s/%d ifindex %d", |
bb8ff1e7 | 471 | inet_ntoa (p->prefix), |
472 | p->prefixlen, *api.ifindex); | |
473 | } | |
cf795c5d | 474 | } |
718e3744 | 475 | } |
476 | } | |
477 | ||
478 | void | |
479 | ospf_zebra_add_discard (struct prefix_ipv4 *p) | |
480 | { | |
481 | struct zapi_ipv4 api; | |
482 | ||
483 | if (zclient->redist[ZEBRA_ROUTE_OSPF]) | |
484 | { | |
485 | api.type = ZEBRA_ROUTE_OSPF; | |
486 | api.flags = ZEBRA_FLAG_BLACKHOLE; | |
487 | api.message = 0; | |
b4e45f67 | 488 | api.safi = SAFI_UNICAST; |
718e3744 | 489 | SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP); |
490 | api.nexthop_num = 0; | |
491 | api.ifindex_num = 0; | |
492 | ||
0a589359 | 493 | zapi_ipv4_route (ZEBRA_IPV4_ROUTE_ADD, zclient, p, &api); |
7f643ebf AS |
494 | |
495 | if (IS_DEBUG_OSPF (zebra, ZEBRA_REDISTRIBUTE)) | |
496 | zlog_debug ("Zebra: Route add discard %s/%d", | |
497 | inet_ntoa (p->prefix), p->prefixlen); | |
718e3744 | 498 | } |
499 | } | |
500 | ||
501 | void | |
502 | ospf_zebra_delete_discard (struct prefix_ipv4 *p) | |
503 | { | |
504 | struct zapi_ipv4 api; | |
505 | ||
506 | if (zclient->redist[ZEBRA_ROUTE_OSPF]) | |
507 | { | |
508 | api.type = ZEBRA_ROUTE_OSPF; | |
509 | api.flags = ZEBRA_FLAG_BLACKHOLE; | |
510 | api.message = 0; | |
b4e45f67 | 511 | api.safi = SAFI_UNICAST; |
718e3744 | 512 | SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP); |
513 | api.nexthop_num = 0; | |
514 | api.ifindex_num = 0; | |
515 | ||
0a589359 | 516 | zapi_ipv4_route (ZEBRA_IPV4_ROUTE_DELETE, zclient, p, &api); |
72357f2b | 517 | |
518 | if (IS_DEBUG_OSPF (zebra, ZEBRA_REDISTRIBUTE)) | |
9b0e25c0 | 519 | zlog_debug ("Zebra: Route delete discard %s/%d", |
cf795c5d | 520 | inet_ntoa (p->prefix), p->prefixlen); |
72357f2b | 521 | |
718e3744 | 522 | } |
523 | } | |
524 | ||
525 | int | |
526 | ospf_is_type_redistributed (int type) | |
527 | { | |
528 | return (DEFAULT_ROUTE_TYPE (type)) ? | |
529 | zclient->default_information : zclient->redist[type]; | |
530 | } | |
531 | ||
532 | int | |
020709f9 | 533 | ospf_redistribute_set (struct ospf *ospf, int type, int mtype, int mvalue) |
718e3744 | 534 | { |
535 | int force = 0; | |
cf795c5d | 536 | |
718e3744 | 537 | if (ospf_is_type_redistributed (type)) |
538 | { | |
68980084 | 539 | if (mtype != ospf->dmetric[type].type) |
cf795c5d | 540 | { |
541 | ospf->dmetric[type].type = mtype; | |
542 | force = LSA_REFRESH_FORCE; | |
543 | } | |
68980084 | 544 | if (mvalue != ospf->dmetric[type].value) |
cf795c5d | 545 | { |
546 | ospf->dmetric[type].value = mvalue; | |
547 | force = LSA_REFRESH_FORCE; | |
548 | } | |
549 | ||
68980084 | 550 | ospf_external_lsa_refresh_type (ospf, type, force); |
cf795c5d | 551 | |
718e3744 | 552 | if (IS_DEBUG_OSPF (zebra, ZEBRA_REDISTRIBUTE)) |
9b0e25c0 | 553 | zlog_debug ("Redistribute[%s]: Refresh Type[%d], Metric[%d]", |
f52d13cb | 554 | ospf_redist_string(type), |
cf795c5d | 555 | metric_type (ospf, type), metric_value (ospf, type)); |
556 | ||
718e3744 | 557 | return CMD_SUCCESS; |
558 | } | |
559 | ||
68980084 | 560 | ospf->dmetric[type].type = mtype; |
561 | ospf->dmetric[type].value = mvalue; | |
718e3744 | 562 | |
0a589359 | 563 | zclient_redistribute (ZEBRA_REDISTRIBUTE_ADD, zclient, type); |
718e3744 | 564 | |
565 | if (IS_DEBUG_OSPF (zebra, ZEBRA_REDISTRIBUTE)) | |
9b0e25c0 | 566 | zlog_debug ("Redistribute[%s]: Start Type[%d], Metric[%d]", |
f52d13cb | 567 | ospf_redist_string(type), |
cf795c5d | 568 | metric_type (ospf, type), metric_value (ospf, type)); |
569 | ||
68980084 | 570 | ospf_asbr_status_update (ospf, ++ospf->redistribute); |
718e3744 | 571 | |
572 | return CMD_SUCCESS; | |
573 | } | |
574 | ||
575 | int | |
020709f9 | 576 | ospf_redistribute_unset (struct ospf *ospf, int type) |
718e3744 | 577 | { |
578 | if (type == zclient->redist_default) | |
579 | return CMD_SUCCESS; | |
580 | ||
cf795c5d | 581 | if (!ospf_is_type_redistributed (type)) |
718e3744 | 582 | return CMD_SUCCESS; |
583 | ||
0a589359 | 584 | zclient_redistribute (ZEBRA_REDISTRIBUTE_DELETE, zclient, type); |
cf795c5d | 585 | |
718e3744 | 586 | if (IS_DEBUG_OSPF (zebra, ZEBRA_REDISTRIBUTE)) |
9b0e25c0 | 587 | zlog_debug ("Redistribute[%s]: Stop", |
f52d13cb | 588 | ospf_redist_string(type)); |
718e3744 | 589 | |
68980084 | 590 | ospf->dmetric[type].type = -1; |
591 | ospf->dmetric[type].value = -1; | |
718e3744 | 592 | |
593 | /* Remove the routes from OSPF table. */ | |
6db3a6f7 | 594 | ospf_redistribute_withdraw (ospf, type); |
718e3744 | 595 | |
68980084 | 596 | ospf_asbr_status_update (ospf, --ospf->redistribute); |
718e3744 | 597 | |
598 | return CMD_SUCCESS; | |
599 | } | |
600 | ||
601 | int | |
020709f9 | 602 | ospf_redistribute_default_set (struct ospf *ospf, int originate, |
cf795c5d | 603 | int mtype, int mvalue) |
718e3744 | 604 | { |
8fb8a504 AS |
605 | ospf->default_originate = originate; |
606 | ospf->dmetric[DEFAULT_ROUTE].type = mtype; | |
607 | ospf->dmetric[DEFAULT_ROUTE].value = mvalue; | |
020709f9 | 608 | |
718e3744 | 609 | if (ospf_is_type_redistributed (DEFAULT_ROUTE)) |
610 | { | |
8fb8a504 AS |
611 | /* if ospf->default_originate changes value, is calling |
612 | ospf_external_lsa_refresh_default sufficient to implement | |
613 | the change? */ | |
68980084 | 614 | ospf_external_lsa_refresh_default (ospf); |
cf795c5d | 615 | |
718e3744 | 616 | if (IS_DEBUG_OSPF (zebra, ZEBRA_REDISTRIBUTE)) |
9b0e25c0 | 617 | zlog_debug ("Redistribute[%s]: Refresh Type[%d], Metric[%d]", |
f52d13cb | 618 | ospf_redist_string(DEFAULT_ROUTE), |
cf795c5d | 619 | metric_type (ospf, DEFAULT_ROUTE), |
620 | metric_value (ospf, DEFAULT_ROUTE)); | |
718e3744 | 621 | return CMD_SUCCESS; |
622 | } | |
623 | ||
0a589359 | 624 | zclient_redistribute_default (ZEBRA_REDISTRIBUTE_DEFAULT_ADD, zclient); |
cf795c5d | 625 | |
718e3744 | 626 | if (IS_DEBUG_OSPF (zebra, ZEBRA_REDISTRIBUTE)) |
9b0e25c0 | 627 | zlog_debug ("Redistribute[DEFAULT]: Start Type[%d], Metric[%d]", |
cf795c5d | 628 | metric_type (ospf, DEFAULT_ROUTE), |
629 | metric_value (ospf, DEFAULT_ROUTE)); | |
718e3744 | 630 | |
68980084 | 631 | if (ospf->router_id.s_addr == 0) |
632 | ospf->external_origin |= (1 << DEFAULT_ROUTE); | |
718e3744 | 633 | else |
4021b60a | 634 | thread_add_timer (master, ospf_default_originate_timer, ospf, 1); |
718e3744 | 635 | |
68980084 | 636 | ospf_asbr_status_update (ospf, ++ospf->redistribute); |
718e3744 | 637 | |
638 | return CMD_SUCCESS; | |
639 | } | |
640 | ||
641 | int | |
020709f9 | 642 | ospf_redistribute_default_unset (struct ospf *ospf) |
718e3744 | 643 | { |
644 | if (!ospf_is_type_redistributed (DEFAULT_ROUTE)) | |
645 | return CMD_SUCCESS; | |
646 | ||
68980084 | 647 | ospf->default_originate = DEFAULT_ORIGINATE_NONE; |
648 | ospf->dmetric[DEFAULT_ROUTE].type = -1; | |
649 | ospf->dmetric[DEFAULT_ROUTE].value = -1; | |
718e3744 | 650 | |
0a589359 | 651 | zclient_redistribute_default (ZEBRA_REDISTRIBUTE_DEFAULT_DELETE, zclient); |
718e3744 | 652 | |
653 | if (IS_DEBUG_OSPF (zebra, ZEBRA_REDISTRIBUTE)) | |
9b0e25c0 | 654 | zlog_debug ("Redistribute[DEFAULT]: Stop"); |
cf795c5d | 655 | |
68980084 | 656 | ospf_asbr_status_update (ospf, --ospf->redistribute); |
718e3744 | 657 | |
658 | return CMD_SUCCESS; | |
659 | } | |
660 | ||
4dadc291 | 661 | static int |
020709f9 | 662 | ospf_external_lsa_originate_check (struct ospf *ospf, |
cf795c5d | 663 | struct external_info *ei) |
718e3744 | 664 | { |
665 | /* If prefix is multicast, then do not originate LSA. */ | |
666 | if (IN_MULTICAST (htonl (ei->p.prefix.s_addr))) | |
667 | { | |
668 | zlog_info ("LSA[Type5:%s]: Not originate AS-external-LSA, " | |
cf795c5d | 669 | "Prefix belongs multicast", inet_ntoa (ei->p.prefix)); |
718e3744 | 670 | return 0; |
671 | } | |
672 | ||
673 | /* Take care of default-originate. */ | |
674 | if (is_prefix_default (&ei->p)) | |
68980084 | 675 | if (ospf->default_originate == DEFAULT_ORIGINATE_NONE) |
718e3744 | 676 | { |
bcc6c59a | 677 | zlog_info ("LSA[Type5:0.0.0.0]: Not originate AS-external-LSA " |
cf795c5d | 678 | "for default"); |
679 | return 0; | |
718e3744 | 680 | } |
681 | ||
682 | return 1; | |
683 | } | |
684 | ||
685 | /* If connected prefix is OSPF enable interface, then do not announce. */ | |
686 | int | |
cf795c5d | 687 | ospf_distribute_check_connected (struct ospf *ospf, struct external_info *ei) |
718e3744 | 688 | { |
5d8de93a JT |
689 | struct listnode *node; |
690 | struct ospf_interface *oi; | |
718e3744 | 691 | |
718e3744 | 692 | |
5d8de93a JT |
693 | for (ALL_LIST_ELEMENTS_RO (ospf->oiflist, node, oi)) |
694 | if (prefix_match (oi->address, (struct prefix *) &ei->p)) | |
695 | return 0; | |
718e3744 | 696 | return 1; |
697 | } | |
698 | ||
699 | /* return 1 if external LSA must be originated, 0 otherwise */ | |
700 | int | |
68980084 | 701 | ospf_redistribute_check (struct ospf *ospf, |
cf795c5d | 702 | struct external_info *ei, int *changed) |
718e3744 | 703 | { |
704 | struct route_map_set_values save_values; | |
705 | struct prefix_ipv4 *p = &ei->p; | |
706 | u_char type = is_prefix_default (&ei->p) ? DEFAULT_ROUTE : ei->type; | |
cf795c5d | 707 | |
718e3744 | 708 | if (changed) |
709 | *changed = 0; | |
710 | ||
020709f9 | 711 | if (!ospf_external_lsa_originate_check (ospf, ei)) |
718e3744 | 712 | return 0; |
713 | ||
714 | /* Take care connected route. */ | |
68980084 | 715 | if (type == ZEBRA_ROUTE_CONNECT && |
716 | !ospf_distribute_check_connected (ospf, ei)) | |
718e3744 | 717 | return 0; |
718 | ||
020709f9 | 719 | if (!DEFAULT_ROUTE_TYPE (type) && DISTRIBUTE_NAME (ospf, type)) |
718e3744 | 720 | /* distirbute-list exists, but access-list may not? */ |
020709f9 | 721 | if (DISTRIBUTE_LIST (ospf, type)) |
722 | if (access_list_apply (DISTRIBUTE_LIST (ospf, type), p) == FILTER_DENY) | |
cf795c5d | 723 | { |
724 | if (IS_DEBUG_OSPF (zebra, ZEBRA_REDISTRIBUTE)) | |
9b0e25c0 | 725 | zlog_debug ("Redistribute[%s]: %s/%d filtered by ditribute-list.", |
f52d13cb | 726 | ospf_redist_string(type), |
cf795c5d | 727 | inet_ntoa (p->prefix), p->prefixlen); |
728 | return 0; | |
729 | } | |
718e3744 | 730 | |
731 | save_values = ei->route_map_set; | |
732 | ospf_reset_route_map_set_values (&ei->route_map_set); | |
cf795c5d | 733 | |
718e3744 | 734 | /* apply route-map if needed */ |
020709f9 | 735 | if (ROUTEMAP_NAME (ospf, type)) |
718e3744 | 736 | { |
737 | int ret; | |
738 | ||
cf795c5d | 739 | ret = route_map_apply (ROUTEMAP (ospf, type), (struct prefix *) p, |
740 | RMAP_OSPF, ei); | |
718e3744 | 741 | |
742 | if (ret == RMAP_DENYMATCH) | |
cf795c5d | 743 | { |
744 | ei->route_map_set = save_values; | |
745 | if (IS_DEBUG_OSPF (zebra, ZEBRA_REDISTRIBUTE)) | |
9b0e25c0 | 746 | zlog_debug ("Redistribute[%s]: %s/%d filtered by route-map.", |
f52d13cb | 747 | ospf_redist_string(type), |
cf795c5d | 748 | inet_ntoa (p->prefix), p->prefixlen); |
749 | return 0; | |
750 | } | |
751 | ||
718e3744 | 752 | /* check if 'route-map set' changed something */ |
753 | if (changed) | |
cf795c5d | 754 | *changed = !ospf_route_map_set_compare (&ei->route_map_set, |
755 | &save_values); | |
718e3744 | 756 | } |
757 | ||
758 | return 1; | |
759 | } | |
760 | ||
761 | /* OSPF route-map set for redistribution */ | |
762 | void | |
6c835671 | 763 | ospf_routemap_set (struct ospf *ospf, int type, const char *name) |
718e3744 | 764 | { |
020709f9 | 765 | if (ROUTEMAP_NAME (ospf, type)) |
766 | free (ROUTEMAP_NAME (ospf, type)); | |
718e3744 | 767 | |
020709f9 | 768 | ROUTEMAP_NAME (ospf, type) = strdup (name); |
769 | ROUTEMAP (ospf, type) = route_map_lookup_by_name (name); | |
718e3744 | 770 | } |
771 | ||
772 | void | |
020709f9 | 773 | ospf_routemap_unset (struct ospf *ospf, int type) |
718e3744 | 774 | { |
020709f9 | 775 | if (ROUTEMAP_NAME (ospf, type)) |
776 | free (ROUTEMAP_NAME (ospf, type)); | |
718e3744 | 777 | |
020709f9 | 778 | ROUTEMAP_NAME (ospf, type) = NULL; |
779 | ROUTEMAP (ospf, type) = NULL; | |
718e3744 | 780 | } |
781 | ||
782 | /* Zebra route add and delete treatment. */ | |
4dadc291 | 783 | static int |
718e3744 | 784 | ospf_zebra_read_ipv4 (int command, struct zclient *zclient, |
cf795c5d | 785 | zebra_size_t length) |
718e3744 | 786 | { |
787 | struct stream *s; | |
788 | struct zapi_ipv4 api; | |
789 | unsigned long ifindex; | |
790 | struct in_addr nexthop; | |
791 | struct prefix_ipv4 p; | |
792 | struct external_info *ei; | |
020709f9 | 793 | struct ospf *ospf; |
718e3744 | 794 | |
795 | s = zclient->ibuf; | |
796 | ifindex = 0; | |
797 | nexthop.s_addr = 0; | |
798 | ||
799 | /* Type, flags, message. */ | |
800 | api.type = stream_getc (s); | |
801 | api.flags = stream_getc (s); | |
802 | api.message = stream_getc (s); | |
803 | ||
804 | /* IPv4 prefix. */ | |
805 | memset (&p, 0, sizeof (struct prefix_ipv4)); | |
806 | p.family = AF_INET; | |
807 | p.prefixlen = stream_getc (s); | |
808 | stream_get (&p.prefix, s, PSIZE (p.prefixlen)); | |
809 | ||
8585d4e5 | 810 | if (IPV4_NET127(ntohl(p.prefix.s_addr))) |
811 | return 0; | |
812 | ||
718e3744 | 813 | /* Nexthop, ifindex, distance, metric. */ |
814 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP)) | |
815 | { | |
816 | api.nexthop_num = stream_getc (s); | |
817 | nexthop.s_addr = stream_get_ipv4 (s); | |
818 | } | |
819 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_IFINDEX)) | |
820 | { | |
821 | api.ifindex_num = stream_getc (s); | |
6a8da852 | 822 | /* XXX assert(api.ifindex_num == 1); */ |
718e3744 | 823 | ifindex = stream_getl (s); |
824 | } | |
825 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE)) | |
826 | api.distance = stream_getc (s); | |
827 | if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC)) | |
828 | api.metric = stream_getl (s); | |
829 | ||
020709f9 | 830 | ospf = ospf_lookup (); |
831 | if (ospf == NULL) | |
832 | return 0; | |
833 | ||
718e3744 | 834 | if (command == ZEBRA_IPV4_ROUTE_ADD) |
835 | { | |
7021c425 | 836 | /* XXX|HACK|TODO|FIXME: |
a0a39761 | 837 | * Maybe we should ignore reject/blackhole routes? Testing shows that |
838 | * there is no problems though and this is only way to "summarize" | |
839 | * routes in ASBR at the moment. Maybe we need just a better generalised | |
840 | * solution for these types? | |
841 | * | |
842 | * if ( CHECK_FLAG (api.flags, ZEBRA_FLAG_BLACKHOLE) | |
843 | * || CHECK_FLAG (api.flags, ZEBRA_FLAG_REJECT)) | |
844 | * return 0; | |
7021c425 | 845 | */ |
7021c425 | 846 | |
718e3744 | 847 | ei = ospf_external_info_add (api.type, p, ifindex, nexthop); |
848 | ||
68980084 | 849 | if (ospf->router_id.s_addr == 0) |
cf795c5d | 850 | /* Set flags to generate AS-external-LSA originate event |
851 | for each redistributed protocols later. */ | |
852 | ospf->external_origin |= (1 << api.type); | |
718e3744 | 853 | else |
cf795c5d | 854 | { |
855 | if (ei) | |
856 | { | |
857 | if (is_prefix_default (&p)) | |
858 | ospf_external_lsa_refresh_default (ospf); | |
859 | else | |
860 | { | |
861 | struct ospf_lsa *current; | |
862 | ||
863 | current = ospf_external_info_find_lsa (ospf, &ei->p); | |
864 | if (!current) | |
865 | ospf_external_lsa_originate (ospf, ei); | |
866 | else if (IS_LSA_MAXAGE (current)) | |
867 | ospf_external_lsa_refresh (ospf, current, | |
868 | ei, LSA_REFRESH_FORCE); | |
869 | else | |
870 | zlog_warn ("ospf_zebra_read_ipv4() : %s already exists", | |
871 | inet_ntoa (p.prefix)); | |
872 | } | |
873 | } | |
874 | } | |
718e3744 | 875 | } |
cf795c5d | 876 | else /* if (command == ZEBRA_IPV4_ROUTE_DELETE) */ |
718e3744 | 877 | { |
878 | ospf_external_info_delete (api.type, p); | |
7021c425 | 879 | if (is_prefix_default (&p)) |
cf795c5d | 880 | ospf_external_lsa_refresh_default (ospf); |
7021c425 | 881 | else |
5339cfdb | 882 | ospf_external_lsa_flush (ospf, api.type, &p, ifindex /*, nexthop */); |
718e3744 | 883 | } |
884 | ||
885 | return 0; | |
886 | } | |
718e3744 | 887 | \f |
cf795c5d | 888 | |
718e3744 | 889 | int |
6c835671 | 890 | ospf_distribute_list_out_set (struct ospf *ospf, int type, const char *name) |
718e3744 | 891 | { |
892 | /* Lookup access-list for distribute-list. */ | |
020709f9 | 893 | DISTRIBUTE_LIST (ospf, type) = access_list_lookup (AFI_IP, name); |
718e3744 | 894 | |
895 | /* Clear previous distribute-name. */ | |
020709f9 | 896 | if (DISTRIBUTE_NAME (ospf, type)) |
897 | free (DISTRIBUTE_NAME (ospf, type)); | |
718e3744 | 898 | |
899 | /* Set distribute-name. */ | |
020709f9 | 900 | DISTRIBUTE_NAME (ospf, type) = strdup (name); |
718e3744 | 901 | |
902 | /* If access-list have been set, schedule update timer. */ | |
020709f9 | 903 | if (DISTRIBUTE_LIST (ospf, type)) |
68980084 | 904 | ospf_distribute_list_update (ospf, type); |
718e3744 | 905 | |
906 | return CMD_SUCCESS; | |
907 | } | |
908 | ||
909 | int | |
6c835671 | 910 | ospf_distribute_list_out_unset (struct ospf *ospf, int type, const char *name) |
718e3744 | 911 | { |
912 | /* Schedule update timer. */ | |
020709f9 | 913 | if (DISTRIBUTE_LIST (ospf, type)) |
68980084 | 914 | ospf_distribute_list_update (ospf, type); |
718e3744 | 915 | |
916 | /* Unset distribute-list. */ | |
020709f9 | 917 | DISTRIBUTE_LIST (ospf, type) = NULL; |
718e3744 | 918 | |
919 | /* Clear distribute-name. */ | |
020709f9 | 920 | if (DISTRIBUTE_NAME (ospf, type)) |
921 | free (DISTRIBUTE_NAME (ospf, type)); | |
cf795c5d | 922 | |
020709f9 | 923 | DISTRIBUTE_NAME (ospf, type) = NULL; |
718e3744 | 924 | |
925 | return CMD_SUCCESS; | |
926 | } | |
927 | ||
928 | /* distribute-list update timer. */ | |
4dadc291 | 929 | static int |
718e3744 | 930 | ospf_distribute_list_update_timer (struct thread *thread) |
931 | { | |
932 | struct route_node *rn; | |
933 | struct external_info *ei; | |
934 | struct route_table *rt; | |
935 | struct ospf_lsa *lsa; | |
46154fe3 | 936 | int type, default_refresh = 0; |
020709f9 | 937 | struct ospf *ospf; |
718e3744 | 938 | |
020709f9 | 939 | ospf = ospf_lookup (); |
940 | if (ospf == NULL) | |
941 | return 0; | |
942 | ||
68980084 | 943 | ospf->t_distribute_update = NULL; |
718e3744 | 944 | |
945 | zlog_info ("Zebra[Redistribute]: distribute-list update timer fired!"); | |
946 | ||
947 | /* foreach all external info. */ | |
274d3f09 JT |
948 | for (type = 0; type <= ZEBRA_ROUTE_MAX; type++) |
949 | { | |
950 | rt = EXTERNAL_INFO (type); | |
951 | if (!rt) | |
952 | continue; | |
953 | for (rn = route_top (rt); rn; rn = route_next (rn)) | |
954 | if ((ei = rn->info) != NULL) | |
955 | { | |
956 | if (is_prefix_default (&ei->p)) | |
46154fe3 | 957 | default_refresh = 1; |
274d3f09 JT |
958 | else if ((lsa = ospf_external_info_find_lsa (ospf, &ei->p))) |
959 | ospf_external_lsa_refresh (ospf, lsa, ei, LSA_REFRESH_IF_CHANGED); | |
960 | else | |
961 | ospf_external_lsa_originate (ospf, ei); | |
962 | } | |
963 | } | |
46154fe3 JT |
964 | if (default_refresh) |
965 | ospf_external_lsa_refresh_default (ospf); | |
718e3744 | 966 | return 0; |
967 | } | |
968 | ||
969 | #define OSPF_DISTRIBUTE_UPDATE_DELAY 5 | |
970 | ||
971 | /* Update distribute-list and set timer to apply access-list. */ | |
972 | void | |
68980084 | 973 | ospf_distribute_list_update (struct ospf *ospf, int type) |
718e3744 | 974 | { |
975 | struct route_table *rt; | |
cf795c5d | 976 | |
718e3744 | 977 | /* External info does not exist. */ |
978 | if (!(rt = EXTERNAL_INFO (type))) | |
979 | return; | |
980 | ||
45acaa0a | 981 | /* If exists previously invoked thread, then let it continue. */ |
68980084 | 982 | if (ospf->t_distribute_update) |
45acaa0a | 983 | return; |
718e3744 | 984 | |
985 | /* Set timer. */ | |
68980084 | 986 | ospf->t_distribute_update = |
718e3744 | 987 | thread_add_timer (master, ospf_distribute_list_update_timer, |
cf795c5d | 988 | (void *) type, OSPF_DISTRIBUTE_UPDATE_DELAY); |
718e3744 | 989 | } |
990 | ||
991 | /* If access-list is updated, apply some check. */ | |
4dadc291 | 992 | static void |
718e3744 | 993 | ospf_filter_update (struct access_list *access) |
994 | { | |
020709f9 | 995 | struct ospf *ospf; |
718e3744 | 996 | int type; |
997 | int abr_inv = 0; | |
998 | struct ospf_area *area; | |
52dc7ee6 | 999 | struct listnode *node; |
718e3744 | 1000 | |
1001 | /* If OSPF instatnce does not exist, return right now. */ | |
020709f9 | 1002 | ospf = ospf_lookup (); |
68980084 | 1003 | if (ospf == NULL) |
718e3744 | 1004 | return; |
1005 | ||
718e3744 | 1006 | /* Update distribute-list, and apply filter. */ |
01018ce4 | 1007 | for (type = 0; type <= ZEBRA_ROUTE_MAX; type++) |
718e3744 | 1008 | { |
020709f9 | 1009 | if (ROUTEMAP (ospf, type) != NULL) |
cf795c5d | 1010 | { |
1011 | /* if route-map is not NULL it may be using this access list */ | |
1012 | ospf_distribute_list_update (ospf, type); | |
1013 | continue; | |
1014 | } | |
1015 | ||
01018ce4 | 1016 | /* There is place for route-map for default-information (ZEBRA_ROUTE_MAX), |
1017 | * but no distribute list. */ | |
1018 | if (type == ZEBRA_ROUTE_MAX) | |
1019 | break; | |
718e3744 | 1020 | |
020709f9 | 1021 | if (DISTRIBUTE_NAME (ospf, type)) |
cf795c5d | 1022 | { |
1023 | /* Keep old access-list for distribute-list. */ | |
1024 | struct access_list *old = DISTRIBUTE_LIST (ospf, type); | |
1025 | ||
1026 | /* Update access-list for distribute-list. */ | |
1027 | DISTRIBUTE_LIST (ospf, type) = | |
1028 | access_list_lookup (AFI_IP, DISTRIBUTE_NAME (ospf, type)); | |
1029 | ||
1030 | /* No update for this distribute type. */ | |
1031 | if (old == NULL && DISTRIBUTE_LIST (ospf, type) == NULL) | |
1032 | continue; | |
1033 | ||
1034 | /* Schedule distribute-list update timer. */ | |
1035 | if (DISTRIBUTE_LIST (ospf, type) == NULL || | |
1036 | strcmp (DISTRIBUTE_NAME (ospf, type), access->name) == 0) | |
1037 | ospf_distribute_list_update (ospf, type); | |
1038 | } | |
718e3744 | 1039 | } |
1040 | ||
1041 | /* Update Area access-list. */ | |
1eb8ef25 | 1042 | for (ALL_LIST_ELEMENTS_RO (ospf->areas, node, area)) |
1043 | { | |
1044 | if (EXPORT_NAME (area)) | |
1045 | { | |
1046 | EXPORT_LIST (area) = NULL; | |
1047 | abr_inv++; | |
1048 | } | |
cf795c5d | 1049 | |
1eb8ef25 | 1050 | if (IMPORT_NAME (area)) |
1051 | { | |
1052 | IMPORT_LIST (area) = NULL; | |
1053 | abr_inv++; | |
1054 | } | |
1055 | } | |
718e3744 | 1056 | |
1057 | /* Schedule ABR tasks -- this will be changed -- takada. */ | |
020709f9 | 1058 | if (IS_OSPF_ABR (ospf) && abr_inv) |
68980084 | 1059 | ospf_schedule_abr_task (ospf); |
718e3744 | 1060 | } |
dd669bb0 | 1061 | |
1062 | /* If prefix-list is updated, do some updates. */ | |
1063 | void | |
1064 | ospf_prefix_list_update (struct prefix_list *plist) | |
1065 | { | |
1066 | struct ospf *ospf; | |
1067 | int type; | |
1068 | int abr_inv = 0; | |
1069 | struct ospf_area *area; | |
52dc7ee6 | 1070 | struct listnode *node; |
dd669bb0 | 1071 | |
1072 | /* If OSPF instatnce does not exist, return right now. */ | |
1073 | ospf = ospf_lookup (); | |
1074 | if (ospf == NULL) | |
1075 | return; | |
1076 | ||
1077 | /* Update all route-maps which are used as redistribution filters. | |
1078 | * They might use prefix-list. | |
1079 | */ | |
01018ce4 | 1080 | for (type = 0; type <= ZEBRA_ROUTE_MAX; type++) |
dd669bb0 | 1081 | { |
1082 | if (ROUTEMAP (ospf, type) != NULL) | |
1083 | { | |
1084 | /* If route-map is not NULL it may be using this prefix list */ | |
1085 | ospf_distribute_list_update (ospf, type); | |
1086 | continue; | |
1087 | } | |
1088 | } | |
1089 | ||
1090 | /* Update area filter-lists. */ | |
1eb8ef25 | 1091 | for (ALL_LIST_ELEMENTS_RO (ospf->areas, node, area)) |
1092 | { | |
1093 | /* Update filter-list in. */ | |
1094 | if (PREFIX_NAME_IN (area)) | |
1095 | if (strcmp (PREFIX_NAME_IN (area), plist->name) == 0) | |
1096 | { | |
1097 | PREFIX_LIST_IN (area) = | |
1098 | prefix_list_lookup (AFI_IP, PREFIX_NAME_IN (area)); | |
1099 | abr_inv++; | |
1100 | } | |
dd669bb0 | 1101 | |
1eb8ef25 | 1102 | /* Update filter-list out. */ |
1103 | if (PREFIX_NAME_OUT (area)) | |
1104 | if (strcmp (PREFIX_NAME_OUT (area), plist->name) == 0) | |
1105 | { | |
1106 | PREFIX_LIST_IN (area) = | |
1107 | prefix_list_lookup (AFI_IP, PREFIX_NAME_OUT (area)); | |
1108 | abr_inv++; | |
1109 | } | |
1110 | } | |
dd669bb0 | 1111 | |
1112 | /* Schedule ABR task. */ | |
1113 | if (IS_OSPF_ABR (ospf) && abr_inv) | |
1114 | ospf_schedule_abr_task (ospf); | |
1115 | } | |
cf795c5d | 1116 | |
4dadc291 | 1117 | static struct ospf_distance * |
1118 | ospf_distance_new (void) | |
718e3744 | 1119 | { |
393deb9b | 1120 | return XCALLOC (MTYPE_OSPF_DISTANCE, sizeof (struct ospf_distance)); |
718e3744 | 1121 | } |
1122 | ||
4dadc291 | 1123 | static void |
718e3744 | 1124 | ospf_distance_free (struct ospf_distance *odistance) |
1125 | { | |
1126 | XFREE (MTYPE_OSPF_DISTANCE, odistance); | |
1127 | } | |
1128 | ||
1129 | int | |
6c835671 | 1130 | ospf_distance_set (struct vty *vty, struct ospf *ospf, |
1131 | const char *distance_str, | |
1132 | const char *ip_str, | |
1133 | const char *access_list_str) | |
718e3744 | 1134 | { |
1135 | int ret; | |
1136 | struct prefix_ipv4 p; | |
1137 | u_char distance; | |
1138 | struct route_node *rn; | |
1139 | struct ospf_distance *odistance; | |
1140 | ||
1141 | ret = str2prefix_ipv4 (ip_str, &p); | |
1142 | if (ret == 0) | |
1143 | { | |
1144 | vty_out (vty, "Malformed prefix%s", VTY_NEWLINE); | |
1145 | return CMD_WARNING; | |
1146 | } | |
1147 | ||
1148 | distance = atoi (distance_str); | |
1149 | ||
1150 | /* Get OSPF distance node. */ | |
68980084 | 1151 | rn = route_node_get (ospf->distance_table, (struct prefix *) &p); |
718e3744 | 1152 | if (rn->info) |
1153 | { | |
1154 | odistance = rn->info; | |
1155 | route_unlock_node (rn); | |
1156 | } | |
1157 | else | |
1158 | { | |
1159 | odistance = ospf_distance_new (); | |
1160 | rn->info = odistance; | |
1161 | } | |
1162 | ||
1163 | /* Set distance value. */ | |
1164 | odistance->distance = distance; | |
1165 | ||
1166 | /* Reset access-list configuration. */ | |
1167 | if (odistance->access_list) | |
1168 | { | |
1169 | free (odistance->access_list); | |
1170 | odistance->access_list = NULL; | |
1171 | } | |
1172 | if (access_list_str) | |
1173 | odistance->access_list = strdup (access_list_str); | |
1174 | ||
1175 | return CMD_SUCCESS; | |
1176 | } | |
1177 | ||
1178 | int | |
6c835671 | 1179 | ospf_distance_unset (struct vty *vty, struct ospf *ospf, |
1180 | const char *distance_str, | |
1181 | const char *ip_str, char | |
1182 | const *access_list_str) | |
718e3744 | 1183 | { |
1184 | int ret; | |
1185 | struct prefix_ipv4 p; | |
1186 | u_char distance; | |
1187 | struct route_node *rn; | |
1188 | struct ospf_distance *odistance; | |
1189 | ||
1190 | ret = str2prefix_ipv4 (ip_str, &p); | |
1191 | if (ret == 0) | |
1192 | { | |
1193 | vty_out (vty, "Malformed prefix%s", VTY_NEWLINE); | |
1194 | return CMD_WARNING; | |
1195 | } | |
1196 | ||
1197 | distance = atoi (distance_str); | |
1198 | ||
cf795c5d | 1199 | rn = route_node_lookup (ospf->distance_table, (struct prefix *) &p); |
1200 | if (!rn) | |
718e3744 | 1201 | { |
1202 | vty_out (vty, "Can't find specified prefix%s", VTY_NEWLINE); | |
1203 | return CMD_WARNING; | |
1204 | } | |
1205 | ||
1206 | odistance = rn->info; | |
1207 | ||
1208 | if (odistance->access_list) | |
1209 | free (odistance->access_list); | |
1210 | ospf_distance_free (odistance); | |
1211 | ||
1212 | rn->info = NULL; | |
1213 | route_unlock_node (rn); | |
1214 | route_unlock_node (rn); | |
1215 | ||
1216 | return CMD_SUCCESS; | |
1217 | } | |
1218 | ||
1219 | void | |
68980084 | 1220 | ospf_distance_reset (struct ospf *ospf) |
718e3744 | 1221 | { |
1222 | struct route_node *rn; | |
1223 | struct ospf_distance *odistance; | |
1224 | ||
68980084 | 1225 | for (rn = route_top (ospf->distance_table); rn; rn = route_next (rn)) |
718e3744 | 1226 | if ((odistance = rn->info) != NULL) |
1227 | { | |
cf795c5d | 1228 | if (odistance->access_list) |
1229 | free (odistance->access_list); | |
1230 | ospf_distance_free (odistance); | |
1231 | rn->info = NULL; | |
1232 | route_unlock_node (rn); | |
718e3744 | 1233 | } |
1234 | } | |
1235 | ||
1236 | u_char | |
1237 | ospf_distance_apply (struct prefix_ipv4 *p, struct ospf_route *or) | |
1238 | { | |
020709f9 | 1239 | struct ospf *ospf; |
718e3744 | 1240 | |
020709f9 | 1241 | ospf = ospf_lookup (); |
68980084 | 1242 | if (ospf == NULL) |
718e3744 | 1243 | return 0; |
1244 | ||
68980084 | 1245 | if (ospf->distance_intra) |
718e3744 | 1246 | if (or->path_type == OSPF_PATH_INTRA_AREA) |
68980084 | 1247 | return ospf->distance_intra; |
718e3744 | 1248 | |
68980084 | 1249 | if (ospf->distance_inter) |
718e3744 | 1250 | if (or->path_type == OSPF_PATH_INTER_AREA) |
68980084 | 1251 | return ospf->distance_inter; |
718e3744 | 1252 | |
68980084 | 1253 | if (ospf->distance_external) |
718e3744 | 1254 | if (or->path_type == OSPF_PATH_TYPE1_EXTERNAL |
cf795c5d | 1255 | || or->path_type == OSPF_PATH_TYPE2_EXTERNAL) |
68980084 | 1256 | return ospf->distance_external; |
cf795c5d | 1257 | |
68980084 | 1258 | if (ospf->distance_all) |
1259 | return ospf->distance_all; | |
718e3744 | 1260 | |
1261 | return 0; | |
1262 | } | |
1263 | ||
1264 | void | |
1265 | ospf_zebra_init () | |
1266 | { | |
1267 | /* Allocate zebra structure. */ | |
1268 | zclient = zclient_new (); | |
1269 | zclient_init (zclient, ZEBRA_ROUTE_OSPF); | |
18a6dce6 | 1270 | zclient->router_id_update = ospf_router_id_update_zebra; |
718e3744 | 1271 | zclient->interface_add = ospf_interface_add; |
1272 | zclient->interface_delete = ospf_interface_delete; | |
1273 | zclient->interface_up = ospf_interface_state_up; | |
1274 | zclient->interface_down = ospf_interface_state_down; | |
1275 | zclient->interface_address_add = ospf_interface_address_add; | |
1276 | zclient->interface_address_delete = ospf_interface_address_delete; | |
1277 | zclient->ipv4_route_add = ospf_zebra_read_ipv4; | |
1278 | zclient->ipv4_route_delete = ospf_zebra_read_ipv4; | |
1279 | ||
1280 | access_list_add_hook (ospf_filter_update); | |
1281 | access_list_delete_hook (ospf_filter_update); | |
dd669bb0 | 1282 | prefix_list_add_hook (ospf_prefix_list_update); |
1283 | prefix_list_delete_hook (ospf_prefix_list_update); | |
718e3744 | 1284 | } |