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718e3744 | 1 | /* RIPng daemon |
2 | * Copyright (C) 1998, 1999 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 | ||
718e3744 | 24 | #include "prefix.h" |
25 | #include "filter.h" | |
26 | #include "log.h" | |
27 | #include "thread.h" | |
28 | #include "memory.h" | |
29 | #include "if.h" | |
30 | #include "stream.h" | |
31 | #include "table.h" | |
32 | #include "command.h" | |
33 | #include "sockopt.h" | |
34 | #include "distribute.h" | |
35 | #include "plist.h" | |
36 | #include "routemap.h" | |
0750d21f | 37 | #include "if_rmap.h" |
27d47aa7 | 38 | #include "privs.h" |
718e3744 | 39 | |
40 | #include "ripngd/ripngd.h" | |
41 | #include "ripngd/ripng_route.h" | |
42 | #include "ripngd/ripng_debug.h" | |
a94434b6 | 43 | #include "ripngd/ripng_nexthop.h" |
718e3744 | 44 | |
45 | /* RIPng structure which includes many parameters related to RIPng | |
46 | protocol. If ripng couldn't active or ripng doesn't configured, | |
47 | ripng->fd must be negative value. */ | |
48 | struct ripng *ripng = NULL; | |
49 | ||
50 | enum | |
51 | { | |
52 | ripng_all_route, | |
53 | ripng_changed_route, | |
718e3744 | 54 | }; |
55 | ||
27d47aa7 | 56 | extern struct zebra_privs_t ripngd_privs; |
57 | ||
718e3744 | 58 | /* Prototypes. */ |
59 | void | |
a94434b6 | 60 | ripng_output_process (struct interface *, struct sockaddr_in6 *, int); |
718e3744 | 61 | |
62 | int | |
63 | ripng_triggered_update (struct thread *); | |
64 | ||
65 | /* RIPng next hop specification. */ | |
66 | struct ripng_nexthop | |
67 | { | |
68 | enum ripng_nexthop_type | |
69 | { | |
70 | RIPNG_NEXTHOP_UNSPEC, | |
71 | RIPNG_NEXTHOP_ADDRESS | |
72 | } flag; | |
73 | struct in6_addr address; | |
74 | }; | |
718e3744 | 75 | |
6ac29a51 | 76 | static int |
a94434b6 | 77 | ripng_route_rte (struct ripng_info *rinfo) |
78 | { | |
79 | return (rinfo->type == ZEBRA_ROUTE_RIPNG && rinfo->sub_type == RIPNG_ROUTE_RTE); | |
80 | } | |
81 | ||
718e3744 | 82 | /* Allocate new ripng information. */ |
83 | struct ripng_info * | |
84 | ripng_info_new () | |
85 | { | |
86 | struct ripng_info *new; | |
87 | ||
88 | new = XCALLOC (MTYPE_RIPNG_ROUTE, sizeof (struct ripng_info)); | |
89 | return new; | |
90 | } | |
91 | ||
92 | /* Free ripng information. */ | |
93 | void | |
94 | ripng_info_free (struct ripng_info *rinfo) | |
95 | { | |
96 | XFREE (MTYPE_RIPNG_ROUTE, rinfo); | |
97 | } | |
6b0655a2 | 98 | |
718e3744 | 99 | /* Create ripng socket. */ |
6ac29a51 | 100 | static int |
718e3744 | 101 | ripng_make_socket (void) |
102 | { | |
103 | int ret; | |
104 | int sock; | |
105 | struct sockaddr_in6 ripaddr; | |
106 | ||
107 | sock = socket (AF_INET6, SOCK_DGRAM, 0); | |
108 | if (sock < 0) | |
109 | { | |
4525281a | 110 | zlog_err("Can't make ripng socket"); |
718e3744 | 111 | return sock; |
112 | } | |
113 | ||
6228a3b8 | 114 | setsockopt_so_recvbuf (sock, 8096); |
718e3744 | 115 | ret = setsockopt_ipv6_pktinfo (sock, 1); |
116 | if (ret < 0) | |
117 | return ret; | |
6d0732c8 SH |
118 | #ifdef IPTOS_PREC_INTERNETCONTROL |
119 | ret = setsockopt_ipv6_tclass (sock, IPTOS_PREC_INTERNETCONTROL); | |
120 | if (ret < 0) | |
121 | return ret; | |
122 | #endif | |
718e3744 | 123 | ret = setsockopt_ipv6_multicast_hops (sock, 255); |
124 | if (ret < 0) | |
125 | return ret; | |
126 | ret = setsockopt_ipv6_multicast_loop (sock, 0); | |
127 | if (ret < 0) | |
128 | return ret; | |
129 | ret = setsockopt_ipv6_hoplimit (sock, 1); | |
130 | if (ret < 0) | |
131 | return ret; | |
132 | ||
133 | memset (&ripaddr, 0, sizeof (ripaddr)); | |
134 | ripaddr.sin6_family = AF_INET6; | |
135 | #ifdef SIN6_LEN | |
136 | ripaddr.sin6_len = sizeof (struct sockaddr_in6); | |
137 | #endif /* SIN6_LEN */ | |
138 | ripaddr.sin6_port = htons (RIPNG_PORT_DEFAULT); | |
139 | ||
27d47aa7 | 140 | if (ripngd_privs.change (ZPRIVS_RAISE)) |
141 | zlog_err ("ripng_make_socket: could not raise privs"); | |
142 | ||
718e3744 | 143 | ret = bind (sock, (struct sockaddr *) &ripaddr, sizeof (ripaddr)); |
144 | if (ret < 0) | |
27d47aa7 | 145 | { |
4525281a | 146 | zlog_err("Can't bind ripng socket: %s.", safe_strerror(errno)); |
27d47aa7 | 147 | if (ripngd_privs.change (ZPRIVS_LOWER)) |
148 | zlog_err ("ripng_make_socket: could not lower privs"); | |
149 | return ret; | |
150 | } | |
151 | if (ripngd_privs.change (ZPRIVS_LOWER)) | |
152 | zlog_err ("ripng_make_socket: could not lower privs"); | |
718e3744 | 153 | return sock; |
154 | } | |
155 | ||
156 | /* Send RIPng packet. */ | |
157 | int | |
158 | ripng_send_packet (caddr_t buf, int bufsize, struct sockaddr_in6 *to, | |
159 | struct interface *ifp) | |
160 | { | |
161 | int ret; | |
162 | struct msghdr msg; | |
163 | struct iovec iov; | |
164 | struct cmsghdr *cmsgptr; | |
165 | char adata [256]; | |
166 | struct in6_pktinfo *pkt; | |
167 | struct sockaddr_in6 addr; | |
168 | ||
a94434b6 | 169 | if (IS_RIPNG_DEBUG_SEND) { |
170 | if (to) | |
3a2ce6a1 | 171 | zlog_debug ("send to %s", inet6_ntoa (to->sin6_addr)); |
c6106812 | 172 | zlog_debug (" send interface %s", ifp->name); |
173 | zlog_debug (" send packet size %d", bufsize); | |
a94434b6 | 174 | } |
718e3744 | 175 | |
176 | memset (&addr, 0, sizeof (struct sockaddr_in6)); | |
177 | addr.sin6_family = AF_INET6; | |
178 | #ifdef SIN6_LEN | |
179 | addr.sin6_len = sizeof (struct sockaddr_in6); | |
180 | #endif /* SIN6_LEN */ | |
181 | addr.sin6_flowinfo = htonl (RIPNG_PRIORITY_DEFAULT); | |
182 | ||
183 | /* When destination is specified. */ | |
184 | if (to != NULL) | |
185 | { | |
186 | addr.sin6_addr = to->sin6_addr; | |
187 | addr.sin6_port = to->sin6_port; | |
188 | } | |
189 | else | |
190 | { | |
191 | inet_pton(AF_INET6, RIPNG_GROUP, &addr.sin6_addr); | |
192 | addr.sin6_port = htons (RIPNG_PORT_DEFAULT); | |
193 | } | |
194 | ||
195 | msg.msg_name = (void *) &addr; | |
196 | msg.msg_namelen = sizeof (struct sockaddr_in6); | |
197 | msg.msg_iov = &iov; | |
198 | msg.msg_iovlen = 1; | |
199 | msg.msg_control = (void *) adata; | |
200 | msg.msg_controllen = CMSG_SPACE(sizeof(struct in6_pktinfo)); | |
201 | ||
202 | iov.iov_base = buf; | |
203 | iov.iov_len = bufsize; | |
204 | ||
205 | cmsgptr = (struct cmsghdr *)adata; | |
206 | cmsgptr->cmsg_len = CMSG_LEN(sizeof (struct in6_pktinfo)); | |
207 | cmsgptr->cmsg_level = IPPROTO_IPV6; | |
208 | cmsgptr->cmsg_type = IPV6_PKTINFO; | |
209 | ||
210 | pkt = (struct in6_pktinfo *) CMSG_DATA (cmsgptr); | |
211 | memset (&pkt->ipi6_addr, 0, sizeof (struct in6_addr)); | |
212 | pkt->ipi6_ifindex = ifp->ifindex; | |
213 | ||
214 | ret = sendmsg (ripng->sock, &msg, 0); | |
215 | ||
a94434b6 | 216 | if (ret < 0) { |
217 | if (to) | |
218 | zlog_err ("RIPng send fail on %s to %s: %s", ifp->name, | |
3a2ce6a1 | 219 | inet6_ntoa (to->sin6_addr), safe_strerror (errno)); |
a94434b6 | 220 | else |
6099b3b5 | 221 | zlog_err ("RIPng send fail on %s: %s", ifp->name, safe_strerror (errno)); |
a94434b6 | 222 | } |
718e3744 | 223 | |
224 | return ret; | |
225 | } | |
226 | ||
227 | /* Receive UDP RIPng packet from socket. */ | |
6ac29a51 | 228 | static int |
718e3744 | 229 | ripng_recv_packet (int sock, u_char *buf, int bufsize, |
b892f1dd | 230 | struct sockaddr_in6 *from, ifindex_t *ifindex, |
718e3744 | 231 | int *hoplimit) |
232 | { | |
233 | int ret; | |
234 | struct msghdr msg; | |
235 | struct iovec iov; | |
236 | struct cmsghdr *cmsgptr; | |
c5e0075f | 237 | struct in6_addr dst = { .s6_addr = { 0 } }; |
718e3744 | 238 | |
37477535 DS |
239 | memset(&dst, 0, sizeof(struct in6_addr)); |
240 | ||
718e3744 | 241 | /* Ancillary data. This store cmsghdr and in6_pktinfo. But at this |
242 | point I can't determine size of cmsghdr */ | |
243 | char adata[1024]; | |
244 | ||
245 | /* Fill in message and iovec. */ | |
246 | msg.msg_name = (void *) from; | |
247 | msg.msg_namelen = sizeof (struct sockaddr_in6); | |
248 | msg.msg_iov = &iov; | |
249 | msg.msg_iovlen = 1; | |
250 | msg.msg_control = (void *) adata; | |
251 | msg.msg_controllen = sizeof adata; | |
252 | iov.iov_base = buf; | |
253 | iov.iov_len = bufsize; | |
254 | ||
255 | /* If recvmsg fail return minus value. */ | |
256 | ret = recvmsg (sock, &msg, 0); | |
257 | if (ret < 0) | |
258 | return ret; | |
259 | ||
b99760ab | 260 | for (cmsgptr = ZCMSG_FIRSTHDR(&msg); cmsgptr != NULL; |
718e3744 | 261 | cmsgptr = CMSG_NXTHDR(&msg, cmsgptr)) |
262 | { | |
263 | /* I want interface index which this packet comes from. */ | |
264 | if (cmsgptr->cmsg_level == IPPROTO_IPV6 && | |
265 | cmsgptr->cmsg_type == IPV6_PKTINFO) | |
266 | { | |
267 | struct in6_pktinfo *ptr; | |
268 | ||
269 | ptr = (struct in6_pktinfo *) CMSG_DATA (cmsgptr); | |
270 | *ifindex = ptr->ipi6_ifindex; | |
271 | dst = ptr->ipi6_addr; | |
272 | ||
273 | if (*ifindex == 0) | |
274 | zlog_warn ("Interface index returned by IPV6_PKTINFO is zero"); | |
275 | } | |
276 | ||
277 | /* Incoming packet's multicast hop limit. */ | |
278 | if (cmsgptr->cmsg_level == IPPROTO_IPV6 && | |
279 | cmsgptr->cmsg_type == IPV6_HOPLIMIT) | |
5eb9d11b SH |
280 | { |
281 | int *phoplimit = (int *) CMSG_DATA (cmsgptr); | |
282 | *hoplimit = *phoplimit; | |
283 | } | |
718e3744 | 284 | } |
285 | ||
286 | /* Hoplimit check shold be done when destination address is | |
287 | multicast address. */ | |
288 | if (! IN6_IS_ADDR_MULTICAST (&dst)) | |
289 | *hoplimit = -1; | |
290 | ||
291 | return ret; | |
292 | } | |
293 | ||
294 | /* Dump rip packet */ | |
295 | void | |
7a1d583c | 296 | ripng_packet_dump (struct ripng_packet *packet, int size, const char *sndrcv) |
718e3744 | 297 | { |
298 | caddr_t lim; | |
299 | struct rte *rte; | |
7a1d583c | 300 | const char *command_str; |
718e3744 | 301 | |
302 | /* Set command string. */ | |
303 | if (packet->command == RIPNG_REQUEST) | |
304 | command_str = "request"; | |
305 | else if (packet->command == RIPNG_RESPONSE) | |
306 | command_str = "response"; | |
307 | else | |
308 | command_str = "unknown"; | |
309 | ||
310 | /* Dump packet header. */ | |
c6106812 | 311 | zlog_debug ("%s %s version %d packet size %d", |
718e3744 | 312 | sndrcv, command_str, packet->version, size); |
313 | ||
314 | /* Dump each routing table entry. */ | |
315 | rte = packet->rte; | |
316 | ||
317 | for (lim = (caddr_t) packet + size; (caddr_t) rte < lim; rte++) | |
318 | { | |
319 | if (rte->metric == RIPNG_METRIC_NEXTHOP) | |
3a2ce6a1 | 320 | zlog_debug (" nexthop %s/%d", inet6_ntoa (rte->addr), rte->prefixlen); |
718e3744 | 321 | else |
dc9ffce8 | 322 | zlog_debug (" %s/%d metric %d tag %"ROUTE_TAG_PRI, |
3a2ce6a1 | 323 | inet6_ntoa (rte->addr), rte->prefixlen, |
dc9ffce8 | 324 | rte->metric, (route_tag_t)ntohs (rte->tag)); |
718e3744 | 325 | } |
326 | } | |
327 | ||
328 | /* RIPng next hop address RTE (Route Table Entry). */ | |
6ac29a51 | 329 | static void |
718e3744 | 330 | ripng_nexthop_rte (struct rte *rte, |
331 | struct sockaddr_in6 *from, | |
332 | struct ripng_nexthop *nexthop) | |
333 | { | |
334 | char buf[INET6_BUFSIZ]; | |
335 | ||
336 | /* Logging before checking RTE. */ | |
337 | if (IS_RIPNG_DEBUG_RECV) | |
dc9ffce8 CF |
338 | zlog_debug ("RIPng nexthop RTE address %s tag %"ROUTE_TAG_PRI" prefixlen %d", |
339 | inet6_ntoa (rte->addr), (route_tag_t)ntohs (rte->tag), rte->prefixlen); | |
718e3744 | 340 | |
341 | /* RFC2080 2.1.1 Next Hop: | |
342 | The route tag and prefix length in the next hop RTE must be | |
343 | set to zero on sending and ignored on receiption. */ | |
344 | if (ntohs (rte->tag) != 0) | |
dc9ffce8 CF |
345 | zlog_warn ("RIPng nexthop RTE with non zero tag value %"ROUTE_TAG_PRI" from %s", |
346 | (route_tag_t)ntohs (rte->tag), inet6_ntoa (from->sin6_addr)); | |
718e3744 | 347 | |
348 | if (rte->prefixlen != 0) | |
349 | zlog_warn ("RIPng nexthop RTE with non zero prefixlen value %d from %s", | |
3a2ce6a1 | 350 | rte->prefixlen, inet6_ntoa (from->sin6_addr)); |
718e3744 | 351 | |
352 | /* Specifying a value of 0:0:0:0:0:0:0:0 in the prefix field of a | |
353 | next hop RTE indicates that the next hop address should be the | |
354 | originator of the RIPng advertisement. An address specified as a | |
355 | next hop must be a link-local address. */ | |
356 | if (IN6_IS_ADDR_UNSPECIFIED (&rte->addr)) | |
357 | { | |
358 | nexthop->flag = RIPNG_NEXTHOP_UNSPEC; | |
359 | memset (&nexthop->address, 0, sizeof (struct in6_addr)); | |
360 | return; | |
361 | } | |
362 | ||
363 | if (IN6_IS_ADDR_LINKLOCAL (&rte->addr)) | |
364 | { | |
365 | nexthop->flag = RIPNG_NEXTHOP_ADDRESS; | |
366 | IPV6_ADDR_COPY (&nexthop->address, &rte->addr); | |
367 | return; | |
368 | } | |
369 | ||
370 | /* The purpose of the next hop RTE is to eliminate packets being | |
371 | routed through extra hops in the system. It is particularly useful | |
372 | when RIPng is not being run on all of the routers on a network. | |
373 | Note that next hop RTE is "advisory". That is, if the provided | |
374 | information is ignored, a possibly sub-optimal, but absolutely | |
375 | valid, route may be taken. If the received next hop address is not | |
376 | a link-local address, it should be treated as 0:0:0:0:0:0:0:0. */ | |
377 | zlog_warn ("RIPng nexthop RTE with non link-local address %s from %s", | |
3a2ce6a1 | 378 | inet6_ntoa (rte->addr), |
718e3744 | 379 | inet_ntop (AF_INET6, &from->sin6_addr, buf, INET6_BUFSIZ)); |
380 | ||
381 | nexthop->flag = RIPNG_NEXTHOP_UNSPEC; | |
382 | memset (&nexthop->address, 0, sizeof (struct in6_addr)); | |
383 | ||
384 | return; | |
385 | } | |
386 | ||
387 | /* If ifp has same link-local address then return 1. */ | |
6ac29a51 | 388 | static int |
718e3744 | 389 | ripng_lladdr_check (struct interface *ifp, struct in6_addr *addr) |
390 | { | |
1eb8ef25 | 391 | struct listnode *node; |
718e3744 | 392 | struct connected *connected; |
393 | struct prefix *p; | |
394 | ||
1eb8ef25 | 395 | for (ALL_LIST_ELEMENTS_RO (ifp->connected, node, connected)) |
396 | { | |
397 | p = connected->address; | |
718e3744 | 398 | |
1eb8ef25 | 399 | if (p->family == AF_INET6 && |
400 | IN6_IS_ADDR_LINKLOCAL (&p->u.prefix6) && | |
401 | IN6_ARE_ADDR_EQUAL (&p->u.prefix6, addr)) | |
402 | return 1; | |
403 | } | |
718e3744 | 404 | return 0; |
405 | } | |
406 | ||
407 | /* RIPng route garbage collect timer. */ | |
6ac29a51 | 408 | static int |
718e3744 | 409 | ripng_garbage_collect (struct thread *t) |
410 | { | |
411 | struct ripng_info *rinfo; | |
412 | struct route_node *rp; | |
413 | ||
414 | rinfo = THREAD_ARG (t); | |
415 | rinfo->t_garbage_collect = NULL; | |
416 | ||
417 | /* Off timeout timer. */ | |
418 | RIPNG_TIMER_OFF (rinfo->t_timeout); | |
419 | ||
420 | /* Get route_node pointer. */ | |
421 | rp = rinfo->rp; | |
422 | ||
718e3744 | 423 | /* Unlock route_node. */ |
c880b636 FL |
424 | listnode_delete (rp->info, rinfo); |
425 | if (list_isempty ((struct list *)rp->info)) | |
426 | { | |
427 | list_free (rp->info); | |
428 | rp->info = NULL; | |
429 | route_unlock_node (rp); | |
430 | } | |
718e3744 | 431 | |
432 | /* Free RIPng routing information. */ | |
433 | ripng_info_free (rinfo); | |
434 | ||
435 | return 0; | |
436 | } | |
437 | ||
c880b636 FL |
438 | static void ripng_timeout_update (struct ripng_info *rinfo); |
439 | ||
440 | /* Add new route to the ECMP list. | |
fac76f9c FL |
441 | * RETURN: the new entry added in the list, or NULL if it is not the first |
442 | * entry and ECMP is not allowed. | |
c880b636 FL |
443 | */ |
444 | struct ripng_info * | |
445 | ripng_ecmp_add (struct ripng_info *rinfo_new) | |
718e3744 | 446 | { |
c880b636 FL |
447 | struct route_node *rp = rinfo_new->rp; |
448 | struct ripng_info *rinfo = NULL; | |
449 | struct list *list = NULL; | |
718e3744 | 450 | |
c880b636 FL |
451 | if (rp->info == NULL) |
452 | rp->info = list_new (); | |
453 | list = (struct list *)rp->info; | |
718e3744 | 454 | |
fac76f9c FL |
455 | /* If ECMP is not allowed and some entry already exists in the list, |
456 | * do nothing. */ | |
457 | if (listcount (list) && !ripng->ecmp) | |
458 | return NULL; | |
459 | ||
c880b636 FL |
460 | rinfo = ripng_info_new (); |
461 | memcpy (rinfo, rinfo_new, sizeof (struct ripng_info)); | |
462 | listnode_add (list, rinfo); | |
463 | ||
464 | if (ripng_route_rte (rinfo)) | |
465 | { | |
466 | ripng_timeout_update (rinfo); | |
467 | ripng_zebra_ipv6_add (rp); | |
468 | } | |
469 | ||
470 | ripng_aggregate_increment (rp, rinfo); | |
471 | ||
472 | /* Set the route change flag on the first entry. */ | |
473 | rinfo = listgetdata (listhead (list)); | |
474 | SET_FLAG (rinfo->flags, RIPNG_RTF_CHANGED); | |
475 | ||
476 | /* Signal the output process to trigger an update. */ | |
477 | ripng_event (RIPNG_TRIGGERED_UPDATE, 0); | |
478 | ||
479 | return rinfo; | |
480 | } | |
481 | ||
482 | /* Replace the ECMP list with the new route. | |
483 | * RETURN: the new entry added in the list | |
484 | */ | |
485 | struct ripng_info * | |
486 | ripng_ecmp_replace (struct ripng_info *rinfo_new) | |
487 | { | |
488 | struct route_node *rp = rinfo_new->rp; | |
489 | struct list *list = (struct list *)rp->info; | |
490 | struct ripng_info *rinfo = NULL, *tmp_rinfo = NULL; | |
491 | struct listnode *node = NULL, *nextnode = NULL; | |
492 | ||
493 | if (list == NULL || listcount (list) == 0) | |
494 | return ripng_ecmp_add (rinfo_new); | |
495 | ||
496 | /* Get the first entry */ | |
497 | rinfo = listgetdata (listhead (list)); | |
718e3744 | 498 | |
c880b636 FL |
499 | /* Learnt route replaced by a local one. Delete it from zebra. */ |
500 | if (ripng_route_rte (rinfo) && !ripng_route_rte (rinfo_new)) | |
501 | if (CHECK_FLAG (rinfo->flags, RIPNG_RTF_FIB)) | |
502 | ripng_zebra_ipv6_delete (rp); | |
718e3744 | 503 | |
c880b636 FL |
504 | if (rinfo->metric != RIPNG_METRIC_INFINITY) |
505 | ripng_aggregate_decrement_list (rp, list); | |
a94434b6 | 506 | |
c880b636 FL |
507 | /* Re-use the first entry, and delete the others. */ |
508 | for (ALL_LIST_ELEMENTS (list, node, nextnode, tmp_rinfo)) | |
509 | if (tmp_rinfo != rinfo) | |
510 | { | |
511 | RIPNG_TIMER_OFF (tmp_rinfo->t_timeout); | |
512 | RIPNG_TIMER_OFF (tmp_rinfo->t_garbage_collect); | |
513 | list_delete_node (list, node); | |
514 | ripng_info_free (tmp_rinfo); | |
515 | } | |
718e3744 | 516 | |
c880b636 FL |
517 | RIPNG_TIMER_OFF (rinfo->t_timeout); |
518 | RIPNG_TIMER_OFF (rinfo->t_garbage_collect); | |
519 | memcpy (rinfo, rinfo_new, sizeof (struct ripng_info)); | |
718e3744 | 520 | |
c880b636 FL |
521 | if (ripng_route_rte (rinfo)) |
522 | { | |
523 | ripng_timeout_update (rinfo); | |
524 | /* The ADD message implies an update. */ | |
525 | ripng_zebra_ipv6_add (rp); | |
526 | } | |
527 | ||
528 | ripng_aggregate_increment (rp, rinfo); | |
529 | ||
530 | /* Set the route change flag. */ | |
531 | SET_FLAG (rinfo->flags, RIPNG_RTF_CHANGED); | |
532 | ||
533 | /* Signal the output process to trigger an update. */ | |
718e3744 | 534 | ripng_event (RIPNG_TRIGGERED_UPDATE, 0); |
535 | ||
c880b636 FL |
536 | return rinfo; |
537 | } | |
538 | ||
539 | /* Delete one route from the ECMP list. | |
540 | * RETURN: | |
541 | * null - the entry is freed, and other entries exist in the list | |
542 | * the entry - the entry is the last one in the list; its metric is set | |
543 | * to INFINITY, and the garbage collector is started for it | |
544 | */ | |
545 | struct ripng_info * | |
546 | ripng_ecmp_delete (struct ripng_info *rinfo) | |
547 | { | |
548 | struct route_node *rp = rinfo->rp; | |
549 | struct list *list = (struct list *)rp->info; | |
550 | ||
551 | RIPNG_TIMER_OFF (rinfo->t_timeout); | |
552 | ||
553 | if (rinfo->metric != RIPNG_METRIC_INFINITY) | |
554 | ripng_aggregate_decrement (rp, rinfo); | |
555 | ||
556 | if (listcount (list) > 1) | |
557 | { | |
558 | /* Some other ECMP entries still exist. Just delete this entry. */ | |
559 | RIPNG_TIMER_OFF (rinfo->t_garbage_collect); | |
560 | listnode_delete (list, rinfo); | |
561 | if (ripng_route_rte (rinfo) && CHECK_FLAG (rinfo->flags, RIPNG_RTF_FIB)) | |
562 | /* The ADD message implies the update. */ | |
563 | ripng_zebra_ipv6_add (rp); | |
564 | ripng_info_free (rinfo); | |
565 | rinfo = NULL; | |
566 | } | |
567 | else | |
568 | { | |
569 | assert (rinfo == listgetdata (listhead (list))); | |
570 | ||
571 | /* This is the only entry left in the list. We must keep it in | |
572 | * the list for garbage collection time, with INFINITY metric. */ | |
573 | ||
574 | rinfo->metric = RIPNG_METRIC_INFINITY; | |
575 | RIPNG_TIMER_ON (rinfo->t_garbage_collect, | |
576 | ripng_garbage_collect, ripng->garbage_time); | |
577 | ||
578 | if (ripng_route_rte (rinfo) && CHECK_FLAG (rinfo->flags, RIPNG_RTF_FIB)) | |
579 | ripng_zebra_ipv6_delete (rp); | |
580 | } | |
581 | ||
582 | /* Set the route change flag on the first entry. */ | |
583 | rinfo = listgetdata (listhead (list)); | |
584 | SET_FLAG (rinfo->flags, RIPNG_RTF_CHANGED); | |
585 | ||
586 | /* Signal the output process to trigger an update. */ | |
587 | ripng_event (RIPNG_TRIGGERED_UPDATE, 0); | |
588 | ||
589 | return rinfo; | |
590 | } | |
591 | ||
592 | /* Timeout RIPng routes. */ | |
593 | static int | |
594 | ripng_timeout (struct thread *t) | |
595 | { | |
596 | ripng_ecmp_delete ((struct ripng_info *)THREAD_ARG (t)); | |
718e3744 | 597 | return 0; |
598 | } | |
599 | ||
6ac29a51 | 600 | static void |
718e3744 | 601 | ripng_timeout_update (struct ripng_info *rinfo) |
602 | { | |
603 | if (rinfo->metric != RIPNG_METRIC_INFINITY) | |
604 | { | |
605 | RIPNG_TIMER_OFF (rinfo->t_timeout); | |
606 | RIPNG_TIMER_ON (rinfo->t_timeout, ripng_timeout, ripng->timeout_time); | |
607 | } | |
608 | } | |
609 | ||
6ac29a51 | 610 | static int |
644ed6c5 MB |
611 | ripng_filter (int ripng_distribute, struct prefix_ipv6 *p, |
612 | struct ripng_interface *ri) | |
a94434b6 | 613 | { |
614 | struct distribute *dist; | |
615 | struct access_list *alist; | |
616 | struct prefix_list *plist; | |
644ed6c5 | 617 | int distribute = ripng_distribute == RIPNG_FILTER_OUT ? |
fb23cf4a | 618 | DISTRIBUTE_V6_OUT : DISTRIBUTE_V6_IN; |
644ed6c5 | 619 | const char *inout = ripng_distribute == RIPNG_FILTER_OUT ? "out" : "in"; |
a94434b6 | 620 | |
621 | /* Input distribute-list filtering. */ | |
644ed6c5 | 622 | if (ri->list[ripng_distribute]) |
a94434b6 | 623 | { |
644ed6c5 | 624 | if (access_list_apply (ri->list[ripng_distribute], |
a94434b6 | 625 | (struct prefix *) p) == FILTER_DENY) |
626 | { | |
627 | if (IS_RIPNG_DEBUG_PACKET) | |
644ed6c5 MB |
628 | zlog_debug ("%s/%d filtered by distribute %s", |
629 | inet6_ntoa (p->prefix), p->prefixlen, inout); | |
a94434b6 | 630 | return -1; |
631 | } | |
632 | } | |
644ed6c5 | 633 | if (ri->prefix[ripng_distribute]) |
a94434b6 | 634 | { |
644ed6c5 | 635 | if (prefix_list_apply (ri->prefix[ripng_distribute], |
a94434b6 | 636 | (struct prefix *) p) == PREFIX_DENY) |
637 | { | |
638 | if (IS_RIPNG_DEBUG_PACKET) | |
644ed6c5 MB |
639 | zlog_debug ("%s/%d filtered by prefix-list %s", |
640 | inet6_ntoa (p->prefix), p->prefixlen, inout); | |
a94434b6 | 641 | return -1; |
642 | } | |
643 | } | |
644 | ||
645 | /* All interface filter check. */ | |
646 | dist = distribute_lookup (NULL); | |
647 | if (dist) | |
648 | { | |
644ed6c5 | 649 | if (dist->list[distribute]) |
a94434b6 | 650 | { |
644ed6c5 | 651 | alist = access_list_lookup (AFI_IP6, dist->list[distribute]); |
a94434b6 | 652 | |
653 | if (alist) | |
654 | { | |
655 | if (access_list_apply (alist, | |
656 | (struct prefix *) p) == FILTER_DENY) | |
657 | { | |
658 | if (IS_RIPNG_DEBUG_PACKET) | |
644ed6c5 MB |
659 | zlog_debug ("%s/%d filtered by distribute %s", |
660 | inet6_ntoa (p->prefix), p->prefixlen, inout); | |
a94434b6 | 661 | return -1; |
662 | } | |
663 | } | |
664 | } | |
644ed6c5 | 665 | if (dist->prefix[distribute]) |
a94434b6 | 666 | { |
644ed6c5 | 667 | plist = prefix_list_lookup (AFI_IP6, dist->prefix[distribute]); |
a94434b6 | 668 | |
669 | if (plist) | |
670 | { | |
671 | if (prefix_list_apply (plist, | |
672 | (struct prefix *) p) == PREFIX_DENY) | |
673 | { | |
674 | if (IS_RIPNG_DEBUG_PACKET) | |
644ed6c5 MB |
675 | zlog_debug ("%s/%d filtered by prefix-list %s", |
676 | inet6_ntoa (p->prefix), p->prefixlen, inout); | |
a94434b6 | 677 | return -1; |
678 | } | |
679 | } | |
680 | } | |
681 | } | |
682 | return 0; | |
683 | } | |
684 | ||
718e3744 | 685 | /* Process RIPng route according to RFC2080. */ |
6ac29a51 | 686 | static void |
718e3744 | 687 | ripng_route_process (struct rte *rte, struct sockaddr_in6 *from, |
688 | struct ripng_nexthop *ripng_nexthop, | |
689 | struct interface *ifp) | |
690 | { | |
a94434b6 | 691 | int ret; |
718e3744 | 692 | struct prefix_ipv6 p; |
693 | struct route_node *rp; | |
c880b636 | 694 | struct ripng_info *rinfo = NULL, newinfo; |
718e3744 | 695 | struct ripng_interface *ri; |
696 | struct in6_addr *nexthop; | |
718e3744 | 697 | int same = 0; |
c880b636 FL |
698 | struct list *list = NULL; |
699 | struct listnode *node = NULL; | |
718e3744 | 700 | |
701 | /* Make prefix structure. */ | |
702 | memset (&p, 0, sizeof (struct prefix_ipv6)); | |
703 | p.family = AF_INET6; | |
704 | /* p.prefix = rte->addr; */ | |
705 | IPV6_ADDR_COPY (&p.prefix, &rte->addr); | |
706 | p.prefixlen = rte->prefixlen; | |
707 | ||
708 | /* Make sure mask is applied. */ | |
709 | /* XXX We have to check the prefix is valid or not before call | |
710 | apply_mask_ipv6. */ | |
711 | apply_mask_ipv6 (&p); | |
712 | ||
713 | /* Apply input filters. */ | |
714 | ri = ifp->info; | |
715 | ||
644ed6c5 | 716 | ret = ripng_filter (RIPNG_FILTER_IN, &p, ri); |
a94434b6 | 717 | if (ret < 0) |
718 | return; | |
718e3744 | 719 | |
c880b636 FL |
720 | memset (&newinfo, 0, sizeof (newinfo)); |
721 | newinfo.type = ZEBRA_ROUTE_RIPNG; | |
722 | newinfo.sub_type = RIPNG_ROUTE_RTE; | |
723 | if (ripng_nexthop->flag == RIPNG_NEXTHOP_ADDRESS) | |
724 | newinfo.nexthop = ripng_nexthop->address; | |
725 | else | |
726 | newinfo.nexthop = from->sin6_addr; | |
727 | newinfo.from = from->sin6_addr; | |
728 | newinfo.ifindex = ifp->ifindex; | |
729 | newinfo.metric = rte->metric; | |
730 | newinfo.metric_out = rte->metric; /* XXX */ | |
731 | newinfo.tag = ntohs (rte->tag); /* XXX */ | |
732 | ||
718e3744 | 733 | /* Modify entry. */ |
734 | if (ri->routemap[RIPNG_FILTER_IN]) | |
735 | { | |
736 | int ret; | |
718e3744 | 737 | |
738 | ret = route_map_apply (ri->routemap[RIPNG_FILTER_IN], | |
739 | (struct prefix *)&p, RMAP_RIPNG, &newinfo); | |
740 | ||
741 | if (ret == RMAP_DENYMATCH) | |
742 | { | |
743 | if (IS_RIPNG_DEBUG_PACKET) | |
c6106812 | 744 | zlog_debug ("RIPng %s/%d is filtered by route-map in", |
3a2ce6a1 | 745 | inet6_ntoa (p.prefix), p.prefixlen); |
718e3744 | 746 | return; |
747 | } | |
748 | ||
a94434b6 | 749 | /* Get back the object */ |
750 | if (ripng_nexthop->flag == RIPNG_NEXTHOP_ADDRESS) { | |
751 | if (! IPV6_ADDR_SAME(&newinfo.nexthop, &ripng_nexthop->address) ) { | |
752 | /* the nexthop get changed by the routemap */ | |
753 | if (IN6_IS_ADDR_LINKLOCAL(&newinfo.nexthop)) | |
754 | ripng_nexthop->address = newinfo.nexthop; | |
755 | else | |
756 | ripng_nexthop->address = in6addr_any; | |
757 | } | |
758 | } else { | |
759 | if (! IPV6_ADDR_SAME(&newinfo.nexthop, &from->sin6_addr) ) { | |
760 | /* the nexthop get changed by the routemap */ | |
761 | if (IN6_IS_ADDR_LINKLOCAL(&newinfo.nexthop)) { | |
762 | ripng_nexthop->flag = RIPNG_NEXTHOP_ADDRESS; | |
763 | ripng_nexthop->address = newinfo.nexthop; | |
764 | } | |
765 | } | |
766 | } | |
767 | rte->tag = htons(newinfo.tag_out); /* XXX */ | |
768 | rte->metric = newinfo.metric_out; /* XXX: the routemap uses the metric_out field */ | |
718e3744 | 769 | } |
770 | ||
a94434b6 | 771 | /* Once the entry has been validated, update the metric by |
772 | * adding the cost of the network on wich the message | |
773 | * arrived. If the result is greater than infinity, use infinity | |
774 | * (RFC2453 Sec. 3.9.2) | |
775 | **/ | |
776 | ||
777 | /* Zebra ripngd can handle offset-list in. */ | |
778 | ret = ripng_offset_list_apply_in (&p, ifp, &rte->metric); | |
779 | ||
780 | /* If offset-list does not modify the metric use interface's | |
781 | * one. */ | |
782 | if (! ret) | |
7b3b98ae | 783 | rte->metric += ifp->metric ? ifp->metric : 1; |
a94434b6 | 784 | |
785 | if (rte->metric > RIPNG_METRIC_INFINITY) | |
786 | rte->metric = RIPNG_METRIC_INFINITY; | |
787 | ||
718e3744 | 788 | /* Set nexthop pointer. */ |
789 | if (ripng_nexthop->flag == RIPNG_NEXTHOP_ADDRESS) | |
790 | nexthop = &ripng_nexthop->address; | |
791 | else | |
792 | nexthop = &from->sin6_addr; | |
793 | ||
794 | /* Lookup RIPng routing table. */ | |
795 | rp = route_node_get (ripng->table, (struct prefix *) &p); | |
796 | ||
c880b636 FL |
797 | newinfo.rp = rp; |
798 | newinfo.nexthop = *nexthop; | |
799 | newinfo.metric = rte->metric; | |
800 | newinfo.tag = ntohs (rte->tag); | |
801 | ||
802 | /* Check to see whether there is already RIPng route on the table. */ | |
803 | if ((list = rp->info) != NULL) | |
804 | for (ALL_LIST_ELEMENTS_RO (list, node, rinfo)) | |
805 | { | |
806 | /* Need to compare with redistributed entry or local entry */ | |
807 | if (!ripng_route_rte (rinfo)) | |
808 | break; | |
809 | ||
810 | if (IPV6_ADDR_SAME (&rinfo->from, &from->sin6_addr) && | |
811 | IPV6_ADDR_SAME (&rinfo->nexthop, nexthop)) | |
812 | break; | |
813 | ||
814 | if (!listnextnode (node)) | |
815 | { | |
816 | /* Not found in the list */ | |
817 | ||
818 | if (rte->metric > rinfo->metric) | |
819 | { | |
820 | /* New route has a greater metric. Discard it. */ | |
821 | route_unlock_node (rp); | |
822 | return; | |
823 | } | |
824 | ||
825 | if (rte->metric < rinfo->metric) | |
826 | /* New route has a smaller metric. Replace the ECMP list | |
827 | * with the new one in below. */ | |
828 | break; | |
829 | ||
705e86f0 RW |
830 | /* Metrics are same. Unless ECMP is disabled, keep "rinfo" null and |
831 | * the new route is added in the ECMP list in below. */ | |
832 | if (! ripng->ecmp) | |
833 | break; | |
c880b636 FL |
834 | } |
835 | } | |
836 | ||
a94434b6 | 837 | if (rinfo) |
838 | { | |
839 | /* Redistributed route check. */ | |
840 | if (rinfo->type != ZEBRA_ROUTE_RIPNG | |
841 | && rinfo->metric != RIPNG_METRIC_INFINITY) | |
c880b636 FL |
842 | { |
843 | route_unlock_node (rp); | |
844 | return; | |
845 | } | |
a94434b6 | 846 | |
847 | /* Local static route. */ | |
848 | if (rinfo->type == ZEBRA_ROUTE_RIPNG | |
849 | && ((rinfo->sub_type == RIPNG_ROUTE_STATIC) || | |
850 | (rinfo->sub_type == RIPNG_ROUTE_DEFAULT)) | |
851 | && rinfo->metric != RIPNG_METRIC_INFINITY) | |
c880b636 FL |
852 | { |
853 | route_unlock_node (rp); | |
854 | return; | |
855 | } | |
a94434b6 | 856 | } |
857 | ||
c880b636 | 858 | if (!rinfo) |
718e3744 | 859 | { |
860 | /* Now, check to see whether there is already an explicit route | |
861 | for the destination prefix. If there is no such route, add | |
862 | this route to the routing table, unless the metric is | |
863 | infinity (there is no point in adding a route which | |
864 | unusable). */ | |
865 | if (rte->metric != RIPNG_METRIC_INFINITY) | |
c880b636 | 866 | ripng_ecmp_add (&newinfo); |
718e3744 | 867 | } |
868 | else | |
869 | { | |
718e3744 | 870 | /* If there is an existing route, compare the next hop address |
871 | to the address of the router from which the datagram came. | |
872 | If this datagram is from the same router as the existing | |
873 | route, reinitialize the timeout. */ | |
874 | same = (IN6_ARE_ADDR_EQUAL (&rinfo->from, &from->sin6_addr) | |
875 | && (rinfo->ifindex == ifp->ifindex)); | |
876 | ||
705e86f0 RW |
877 | /* |
878 | * RFC 2080 - Section 2.4.2: | |
879 | * "If the new metric is the same as the old one, examine the timeout | |
880 | * for the existing route. If it is at least halfway to the expiration | |
881 | * point, switch to the new route. This heuristic is optional, but | |
882 | * highly recommended". | |
883 | */ | |
884 | if (!ripng->ecmp && !same && | |
885 | rinfo->metric == rte->metric && rinfo->t_timeout && | |
886 | (thread_timer_remain_second (rinfo->t_timeout) < (ripng->timeout_time / 2))) | |
887 | { | |
888 | ripng_ecmp_replace (&newinfo); | |
889 | } | |
718e3744 | 890 | /* Next, compare the metrics. If the datagram is from the same |
891 | router as the existing route, and the new metric is different | |
892 | than the old one; or, if the new metric is lower than the old | |
893 | one; do the following actions: */ | |
705e86f0 | 894 | else if ((same && rinfo->metric != rte->metric) || |
718e3744 | 895 | rte->metric < rinfo->metric) |
896 | { | |
c880b636 FL |
897 | if (listcount (list) == 1) |
898 | { | |
899 | if (newinfo.metric != RIPNG_METRIC_INFINITY) | |
900 | ripng_ecmp_replace (&newinfo); | |
901 | else | |
902 | ripng_ecmp_delete (rinfo); | |
903 | } | |
904 | else | |
905 | { | |
906 | if (newinfo.metric < rinfo->metric) | |
907 | ripng_ecmp_replace (&newinfo); | |
908 | else /* newinfo.metric > rinfo->metric */ | |
909 | ripng_ecmp_delete (rinfo); | |
910 | } | |
718e3744 | 911 | } |
c880b636 FL |
912 | else /* same & no change */ |
913 | ripng_timeout_update (rinfo); | |
914 | ||
718e3744 | 915 | /* Unlock tempolary lock of the route. */ |
916 | route_unlock_node (rp); | |
917 | } | |
918 | } | |
919 | ||
920 | /* Add redistributed route to RIPng table. */ | |
921 | void | |
922 | ripng_redistribute_add (int type, int sub_type, struct prefix_ipv6 *p, | |
1796a585 CF |
923 | ifindex_t ifindex, struct in6_addr *nexthop, |
924 | route_tag_t tag) | |
718e3744 | 925 | { |
926 | struct route_node *rp; | |
c880b636 FL |
927 | struct ripng_info *rinfo = NULL, newinfo; |
928 | struct list *list = NULL; | |
718e3744 | 929 | |
930 | /* Redistribute route */ | |
931 | if (IN6_IS_ADDR_LINKLOCAL (&p->prefix)) | |
932 | return; | |
933 | if (IN6_IS_ADDR_LOOPBACK (&p->prefix)) | |
934 | return; | |
935 | ||
936 | rp = route_node_get (ripng->table, (struct prefix *) p); | |
718e3744 | 937 | |
c880b636 FL |
938 | memset (&newinfo, 0, sizeof (struct ripng_info)); |
939 | newinfo.type = type; | |
940 | newinfo.sub_type = sub_type; | |
941 | newinfo.ifindex = ifindex; | |
942 | newinfo.metric = 1; | |
1796a585 CF |
943 | if (tag <= UINT16_MAX) /* RIPng only supports 16 bit tags */ |
944 | newinfo.tag = tag; | |
c880b636 FL |
945 | newinfo.rp = rp; |
946 | if (nexthop && IN6_IS_ADDR_LINKLOCAL(nexthop)) | |
947 | newinfo.nexthop = *nexthop; | |
948 | ||
949 | if ((list = rp->info) != NULL && listcount (list) != 0) | |
718e3744 | 950 | { |
c880b636 FL |
951 | rinfo = listgetdata (listhead (list)); |
952 | ||
a94434b6 | 953 | if (rinfo->type == ZEBRA_ROUTE_CONNECT |
954 | && rinfo->sub_type == RIPNG_ROUTE_INTERFACE | |
955 | && rinfo->metric != RIPNG_METRIC_INFINITY) { | |
956 | route_unlock_node (rp); | |
957 | return; | |
958 | } | |
959 | ||
960 | /* Manually configured RIPng route check. | |
961 | * They have the precedence on all the other entries. | |
962 | **/ | |
963 | if (rinfo->type == ZEBRA_ROUTE_RIPNG | |
964 | && ((rinfo->sub_type == RIPNG_ROUTE_STATIC) || | |
965 | (rinfo->sub_type == RIPNG_ROUTE_DEFAULT)) ) { | |
966 | if (type != ZEBRA_ROUTE_RIPNG || ((sub_type != RIPNG_ROUTE_STATIC) && | |
967 | (sub_type != RIPNG_ROUTE_DEFAULT))) { | |
968 | route_unlock_node (rp); | |
969 | return; | |
970 | } | |
971 | } | |
a94434b6 | 972 | |
c880b636 | 973 | rinfo = ripng_ecmp_replace (&newinfo); |
718e3744 | 974 | route_unlock_node (rp); |
975 | } | |
c880b636 FL |
976 | else |
977 | rinfo = ripng_ecmp_add (&newinfo); | |
a94434b6 | 978 | |
979 | if (IS_RIPNG_DEBUG_EVENT) { | |
980 | if (!nexthop) | |
c6106812 | 981 | zlog_debug ("Redistribute new prefix %s/%d on the interface %s", |
baaea325 DS |
982 | inet6_ntoa(p->prefix), p->prefixlen, |
983 | ifindex2ifname(ifindex, VRF_DEFAULT)); | |
a94434b6 | 984 | else |
c6106812 | 985 | zlog_debug ("Redistribute new prefix %s/%d with nexthop %s on the interface %s", |
baaea325 DS |
986 | inet6_ntoa(p->prefix), p->prefixlen, inet6_ntoa(*nexthop), |
987 | ifindex2ifname(ifindex, VRF_DEFAULT)); | |
a94434b6 | 988 | } |
989 | ||
990 | ripng_event (RIPNG_TRIGGERED_UPDATE, 0); | |
718e3744 | 991 | } |
992 | ||
993 | /* Delete redistributed route to RIPng table. */ | |
994 | void | |
995 | ripng_redistribute_delete (int type, int sub_type, struct prefix_ipv6 *p, | |
b892f1dd | 996 | ifindex_t ifindex) |
718e3744 | 997 | { |
998 | struct route_node *rp; | |
999 | struct ripng_info *rinfo; | |
1000 | ||
1001 | if (IN6_IS_ADDR_LINKLOCAL (&p->prefix)) | |
1002 | return; | |
1003 | if (IN6_IS_ADDR_LOOPBACK (&p->prefix)) | |
1004 | return; | |
1005 | ||
1006 | rp = route_node_lookup (ripng->table, (struct prefix *) p); | |
1007 | ||
1008 | if (rp) | |
1009 | { | |
c880b636 FL |
1010 | struct list *list = rp->info; |
1011 | ||
1012 | if (list != NULL && listcount (list) != 0) | |
1013 | { | |
1014 | rinfo = listgetdata (listhead (list)); | |
1015 | if (rinfo != NULL | |
1016 | && rinfo->type == type | |
1017 | && rinfo->sub_type == sub_type | |
1018 | && rinfo->ifindex == ifindex) | |
1019 | { | |
1020 | /* Perform poisoned reverse. */ | |
1021 | rinfo->metric = RIPNG_METRIC_INFINITY; | |
1022 | RIPNG_TIMER_ON (rinfo->t_garbage_collect, | |
1023 | ripng_garbage_collect, ripng->garbage_time); | |
1024 | RIPNG_TIMER_OFF (rinfo->t_timeout); | |
1025 | ||
1026 | /* Aggregate count decrement. */ | |
1027 | ripng_aggregate_decrement (rp, rinfo); | |
1028 | ||
1029 | rinfo->flags |= RIPNG_RTF_CHANGED; | |
1030 | ||
1031 | if (IS_RIPNG_DEBUG_EVENT) | |
1032 | zlog_debug ("Poisone %s/%d on the interface %s with an " | |
1033 | "infinity metric [delete]", | |
1034 | inet6_ntoa (p->prefix), p->prefixlen, | |
baaea325 | 1035 | ifindex2ifname (ifindex, VRF_DEFAULT)); |
c880b636 FL |
1036 | |
1037 | ripng_event (RIPNG_TRIGGERED_UPDATE, 0); | |
1038 | } | |
1039 | } | |
1040 | route_unlock_node (rp); | |
718e3744 | 1041 | } |
1042 | } | |
1043 | ||
1044 | /* Withdraw redistributed route. */ | |
1045 | void | |
1046 | ripng_redistribute_withdraw (int type) | |
1047 | { | |
1048 | struct route_node *rp; | |
c880b636 FL |
1049 | struct ripng_info *rinfo = NULL; |
1050 | struct list *list = NULL; | |
718e3744 | 1051 | |
a94434b6 | 1052 | if (!ripng) |
1053 | return; | |
1054 | ||
718e3744 | 1055 | for (rp = route_top (ripng->table); rp; rp = route_next (rp)) |
c880b636 | 1056 | if ((list = rp->info) != NULL) |
718e3744 | 1057 | { |
c880b636 | 1058 | rinfo = listgetdata (listhead (list)); |
a94434b6 | 1059 | if ((rinfo->type == type) |
1060 | && (rinfo->sub_type != RIPNG_ROUTE_INTERFACE)) | |
718e3744 | 1061 | { |
a94434b6 | 1062 | /* Perform poisoned reverse. */ |
1063 | rinfo->metric = RIPNG_METRIC_INFINITY; | |
1064 | RIPNG_TIMER_ON (rinfo->t_garbage_collect, | |
1065 | ripng_garbage_collect, ripng->garbage_time); | |
718e3744 | 1066 | RIPNG_TIMER_OFF (rinfo->t_timeout); |
718e3744 | 1067 | |
a94434b6 | 1068 | /* Aggregate count decrement. */ |
1069 | ripng_aggregate_decrement (rp, rinfo); | |
1070 | ||
1071 | rinfo->flags |= RIPNG_RTF_CHANGED; | |
1072 | ||
1073 | if (IS_RIPNG_DEBUG_EVENT) { | |
1074 | struct prefix_ipv6 *p = (struct prefix_ipv6 *) &rp->p; | |
718e3744 | 1075 | |
c6106812 | 1076 | zlog_debug ("Poisone %s/%d on the interface %s [withdraw]", |
baaea325 DS |
1077 | inet6_ntoa(p->prefix), p->prefixlen, |
1078 | ifindex2ifname(rinfo->ifindex, VRF_DEFAULT)); | |
a94434b6 | 1079 | } |
1080 | ||
1081 | ripng_event (RIPNG_TRIGGERED_UPDATE, 0); | |
718e3744 | 1082 | } |
1083 | } | |
1084 | } | |
1085 | ||
1086 | /* RIP routing information. */ | |
6ac29a51 | 1087 | static void |
718e3744 | 1088 | ripng_response_process (struct ripng_packet *packet, int size, |
1089 | struct sockaddr_in6 *from, struct interface *ifp, | |
1090 | int hoplimit) | |
1091 | { | |
1092 | caddr_t lim; | |
1093 | struct rte *rte; | |
1094 | struct ripng_nexthop nexthop; | |
1095 | ||
1096 | /* RFC2080 2.4.2 Response Messages: | |
1097 | The Response must be ignored if it is not from the RIPng port. */ | |
1098 | if (ntohs (from->sin6_port) != RIPNG_PORT_DEFAULT) | |
1099 | { | |
1100 | zlog_warn ("RIPng packet comes from non RIPng port %d from %s", | |
3a2ce6a1 | 1101 | ntohs (from->sin6_port), inet6_ntoa (from->sin6_addr)); |
a94434b6 | 1102 | ripng_peer_bad_packet (from); |
718e3744 | 1103 | return; |
1104 | } | |
1105 | ||
1106 | /* The datagram's IPv6 source address should be checked to see | |
1107 | whether the datagram is from a valid neighbor; the source of the | |
1108 | datagram must be a link-local address. */ | |
1109 | if (! IN6_IS_ADDR_LINKLOCAL(&from->sin6_addr)) | |
1110 | { | |
1111 | zlog_warn ("RIPng packet comes from non link local address %s", | |
3a2ce6a1 | 1112 | inet6_ntoa (from->sin6_addr)); |
a94434b6 | 1113 | ripng_peer_bad_packet (from); |
718e3744 | 1114 | return; |
1115 | } | |
1116 | ||
1117 | /* It is also worth checking to see whether the response is from one | |
1118 | of the router's own addresses. Interfaces on broadcast networks | |
1119 | may receive copies of their own multicasts immediately. If a | |
1120 | router processes its own output as new input, confusion is likely, | |
1121 | and such datagrams must be ignored. */ | |
1122 | if (ripng_lladdr_check (ifp, &from->sin6_addr)) | |
1123 | { | |
1124 | zlog_warn ("RIPng packet comes from my own link local address %s", | |
3a2ce6a1 | 1125 | inet6_ntoa (from->sin6_addr)); |
a94434b6 | 1126 | ripng_peer_bad_packet (from); |
718e3744 | 1127 | return; |
1128 | } | |
1129 | ||
1130 | /* As an additional check, periodic advertisements must have their | |
1131 | hop counts set to 255, and inbound, multicast packets sent from the | |
1132 | RIPng port (i.e. periodic advertisement or triggered update | |
1133 | packets) must be examined to ensure that the hop count is 255. */ | |
1134 | if (hoplimit >= 0 && hoplimit != 255) | |
1135 | { | |
1136 | zlog_warn ("RIPng packet comes with non 255 hop count %d from %s", | |
3a2ce6a1 | 1137 | hoplimit, inet6_ntoa (from->sin6_addr)); |
a94434b6 | 1138 | ripng_peer_bad_packet (from); |
718e3744 | 1139 | return; |
1140 | } | |
1141 | ||
a94434b6 | 1142 | /* Update RIPng peer. */ |
1143 | ripng_peer_update (from, packet->version); | |
1144 | ||
718e3744 | 1145 | /* Reset nexthop. */ |
1146 | memset (&nexthop, 0, sizeof (struct ripng_nexthop)); | |
1147 | nexthop.flag = RIPNG_NEXTHOP_UNSPEC; | |
1148 | ||
1149 | /* Set RTE pointer. */ | |
1150 | rte = packet->rte; | |
1151 | ||
1152 | for (lim = ((caddr_t) packet) + size; (caddr_t) rte < lim; rte++) | |
1153 | { | |
1154 | /* First of all, we have to check this RTE is next hop RTE or | |
1155 | not. Next hop RTE is completely different with normal RTE so | |
1156 | we need special treatment. */ | |
1157 | if (rte->metric == RIPNG_METRIC_NEXTHOP) | |
1158 | { | |
1159 | ripng_nexthop_rte (rte, from, &nexthop); | |
1160 | continue; | |
1161 | } | |
1162 | ||
1163 | /* RTE information validation. */ | |
1164 | ||
1165 | /* - is the destination prefix valid (e.g., not a multicast | |
1166 | prefix and not a link-local address) A link-local address | |
1167 | should never be present in an RTE. */ | |
1168 | if (IN6_IS_ADDR_MULTICAST (&rte->addr)) | |
1169 | { | |
1170 | zlog_warn ("Destination prefix is a multicast address %s/%d [%d]", | |
3a2ce6a1 | 1171 | inet6_ntoa (rte->addr), rte->prefixlen, rte->metric); |
a94434b6 | 1172 | ripng_peer_bad_route (from); |
718e3744 | 1173 | continue; |
1174 | } | |
1175 | if (IN6_IS_ADDR_LINKLOCAL (&rte->addr)) | |
1176 | { | |
1177 | zlog_warn ("Destination prefix is a link-local address %s/%d [%d]", | |
3a2ce6a1 | 1178 | inet6_ntoa (rte->addr), rte->prefixlen, rte->metric); |
a94434b6 | 1179 | ripng_peer_bad_route (from); |
718e3744 | 1180 | continue; |
1181 | } | |
1182 | if (IN6_IS_ADDR_LOOPBACK (&rte->addr)) | |
1183 | { | |
1184 | zlog_warn ("Destination prefix is a loopback address %s/%d [%d]", | |
3a2ce6a1 | 1185 | inet6_ntoa (rte->addr), rte->prefixlen, rte->metric); |
a94434b6 | 1186 | ripng_peer_bad_route (from); |
718e3744 | 1187 | continue; |
1188 | } | |
1189 | ||
1190 | /* - is the prefix length valid (i.e., between 0 and 128, | |
1191 | inclusive) */ | |
1192 | if (rte->prefixlen > 128) | |
1193 | { | |
1194 | zlog_warn ("Invalid prefix length %s/%d from %s%%%s", | |
3a2ce6a1 | 1195 | inet6_ntoa (rte->addr), rte->prefixlen, |
1196 | inet6_ntoa (from->sin6_addr), ifp->name); | |
a94434b6 | 1197 | ripng_peer_bad_route (from); |
718e3744 | 1198 | continue; |
1199 | } | |
1200 | ||
1201 | /* - is the metric valid (i.e., between 1 and 16, inclusive) */ | |
1202 | if (! (rte->metric >= 1 && rte->metric <= 16)) | |
1203 | { | |
1204 | zlog_warn ("Invalid metric %d from %s%%%s", rte->metric, | |
3a2ce6a1 | 1205 | inet6_ntoa (from->sin6_addr), ifp->name); |
a94434b6 | 1206 | ripng_peer_bad_route (from); |
718e3744 | 1207 | continue; |
1208 | } | |
1209 | ||
a94434b6 | 1210 | /* Vincent: XXX Should we compute the direclty reachable nexthop |
1211 | * for our RIPng network ? | |
1212 | **/ | |
718e3744 | 1213 | |
1214 | /* Routing table updates. */ | |
1215 | ripng_route_process (rte, from, &nexthop, ifp); | |
1216 | } | |
1217 | } | |
1218 | ||
1219 | /* Response to request message. */ | |
6ac29a51 | 1220 | static void |
718e3744 | 1221 | ripng_request_process (struct ripng_packet *packet,int size, |
1222 | struct sockaddr_in6 *from, struct interface *ifp) | |
1223 | { | |
1224 | caddr_t lim; | |
1225 | struct rte *rte; | |
1226 | struct prefix_ipv6 p; | |
1227 | struct route_node *rp; | |
1228 | struct ripng_info *rinfo; | |
1229 | struct ripng_interface *ri; | |
1230 | ||
a94434b6 | 1231 | /* Does not reponse to the requests on the loopback interfaces */ |
1232 | if (if_is_loopback (ifp)) | |
1233 | return; | |
1234 | ||
718e3744 | 1235 | /* Check RIPng process is enabled on this interface. */ |
1236 | ri = ifp->info; | |
1237 | if (! ri->running) | |
1238 | return; | |
1239 | ||
1240 | /* When passive interface is specified, suppress responses */ | |
1241 | if (ri->passive) | |
1242 | return; | |
1243 | ||
a94434b6 | 1244 | /* RIPng peer update. */ |
1245 | ripng_peer_update (from, packet->version); | |
1246 | ||
718e3744 | 1247 | lim = ((caddr_t) packet) + size; |
1248 | rte = packet->rte; | |
1249 | ||
1250 | /* The Request is processed entry by entry. If there are no | |
1251 | entries, no response is given. */ | |
1252 | if (lim == (caddr_t) rte) | |
1253 | return; | |
1254 | ||
1255 | /* There is one special case. If there is exactly one entry in the | |
1256 | request, and it has a destination prefix of zero, a prefix length | |
1257 | of zero, and a metric of infinity (i.e., 16), then this is a | |
1258 | request to send the entire routing table. In that case, a call | |
1259 | is made to the output process to send the routing table to the | |
1260 | requesting address/port. */ | |
1261 | if (lim == ((caddr_t) (rte + 1)) && | |
1262 | IN6_IS_ADDR_UNSPECIFIED (&rte->addr) && | |
1263 | rte->prefixlen == 0 && | |
1264 | rte->metric == RIPNG_METRIC_INFINITY) | |
1265 | { | |
1266 | /* All route with split horizon */ | |
a94434b6 | 1267 | ripng_output_process (ifp, from, ripng_all_route); |
718e3744 | 1268 | } |
1269 | else | |
1270 | { | |
1271 | /* Except for this special case, processing is quite simple. | |
1272 | Examine the list of RTEs in the Request one by one. For each | |
1273 | entry, look up the destination in the router's routing | |
1274 | database and, if there is a route, put that route's metric in | |
1275 | the metric field of the RTE. If there is no explicit route | |
1276 | to the specified destination, put infinity in the metric | |
1277 | field. Once all the entries have been filled in, change the | |
1278 | command from Request to Response and send the datagram back | |
1279 | to the requestor. */ | |
1280 | memset (&p, 0, sizeof (struct prefix_ipv6)); | |
1281 | p.family = AF_INET6; | |
1282 | ||
1283 | for (; ((caddr_t) rte) < lim; rte++) | |
1284 | { | |
1285 | p.prefix = rte->addr; | |
1286 | p.prefixlen = rte->prefixlen; | |
1287 | apply_mask_ipv6 (&p); | |
1288 | ||
1289 | rp = route_node_lookup (ripng->table, (struct prefix *) &p); | |
1290 | ||
1291 | if (rp) | |
1292 | { | |
c880b636 | 1293 | rinfo = listgetdata (listhead ((struct list *)rp->info)); |
718e3744 | 1294 | rte->metric = rinfo->metric; |
1295 | route_unlock_node (rp); | |
1296 | } | |
1297 | else | |
1298 | rte->metric = RIPNG_METRIC_INFINITY; | |
1299 | } | |
1300 | packet->command = RIPNG_RESPONSE; | |
1301 | ||
1302 | ripng_send_packet ((caddr_t) packet, size, from, ifp); | |
1303 | } | |
1304 | } | |
1305 | ||
1306 | /* First entry point of reading RIPng packet. */ | |
6ac29a51 | 1307 | static int |
718e3744 | 1308 | ripng_read (struct thread *thread) |
1309 | { | |
1310 | int len; | |
1311 | int sock; | |
1312 | struct sockaddr_in6 from; | |
1313 | struct ripng_packet *packet; | |
b892f1dd | 1314 | ifindex_t ifindex = 0; |
718e3744 | 1315 | struct interface *ifp; |
1316 | int hoplimit = -1; | |
1317 | ||
1318 | /* Check ripng is active and alive. */ | |
1319 | assert (ripng != NULL); | |
1320 | assert (ripng->sock >= 0); | |
1321 | ||
1322 | /* Fetch thread data and set read pointer to empty for event | |
1323 | managing. `sock' sould be same as ripng->sock. */ | |
1324 | sock = THREAD_FD (thread); | |
1325 | ripng->t_read = NULL; | |
1326 | ||
1327 | /* Add myself to the next event. */ | |
1328 | ripng_event (RIPNG_READ, sock); | |
1329 | ||
1330 | /* Read RIPng packet. */ | |
1331 | len = ripng_recv_packet (sock, STREAM_DATA (ripng->ibuf), | |
1332 | STREAM_SIZE (ripng->ibuf), &from, &ifindex, | |
1333 | &hoplimit); | |
1334 | if (len < 0) | |
1335 | { | |
6099b3b5 | 1336 | zlog_warn ("RIPng recvfrom failed: %s.", safe_strerror (errno)); |
718e3744 | 1337 | return len; |
1338 | } | |
1339 | ||
1340 | /* Check RTE boundary. RTE size (Packet length - RIPng header size | |
1341 | (4)) must be multiple size of one RTE size (20). */ | |
1342 | if (((len - 4) % 20) != 0) | |
1343 | { | |
1344 | zlog_warn ("RIPng invalid packet size %d from %s", len, | |
3a2ce6a1 | 1345 | inet6_ntoa (from.sin6_addr)); |
a94434b6 | 1346 | ripng_peer_bad_packet (&from); |
718e3744 | 1347 | return 0; |
1348 | } | |
1349 | ||
1350 | packet = (struct ripng_packet *) STREAM_DATA (ripng->ibuf); | |
7e2b7603 | 1351 | ifp = if_lookup_by_index (ifindex, VRF_DEFAULT); |
718e3744 | 1352 | |
1353 | /* RIPng packet received. */ | |
1354 | if (IS_RIPNG_DEBUG_EVENT) | |
c6106812 | 1355 | zlog_debug ("RIPng packet received from %s port %d on %s", |
3a2ce6a1 | 1356 | inet6_ntoa (from.sin6_addr), ntohs (from.sin6_port), |
718e3744 | 1357 | ifp ? ifp->name : "unknown"); |
1358 | ||
1359 | /* Logging before packet checking. */ | |
1360 | if (IS_RIPNG_DEBUG_RECV) | |
1361 | ripng_packet_dump (packet, len, "RECV"); | |
1362 | ||
1363 | /* Packet comes from unknown interface. */ | |
1364 | if (ifp == NULL) | |
1365 | { | |
1366 | zlog_warn ("RIPng packet comes from unknown interface %d", ifindex); | |
1367 | return 0; | |
1368 | } | |
1369 | ||
1370 | /* Packet version mismatch checking. */ | |
1371 | if (packet->version != ripng->version) | |
1372 | { | |
1373 | zlog_warn ("RIPng packet version %d doesn't fit to my version %d", | |
1374 | packet->version, ripng->version); | |
a94434b6 | 1375 | ripng_peer_bad_packet (&from); |
718e3744 | 1376 | return 0; |
1377 | } | |
1378 | ||
1379 | /* Process RIPng packet. */ | |
1380 | switch (packet->command) | |
1381 | { | |
1382 | case RIPNG_REQUEST: | |
1383 | ripng_request_process (packet, len, &from, ifp); | |
1384 | break; | |
1385 | case RIPNG_RESPONSE: | |
1386 | ripng_response_process (packet, len, &from, ifp, hoplimit); | |
1387 | break; | |
1388 | default: | |
1389 | zlog_warn ("Invalid RIPng command %d", packet->command); | |
a94434b6 | 1390 | ripng_peer_bad_packet (&from); |
718e3744 | 1391 | break; |
1392 | } | |
1393 | return 0; | |
1394 | } | |
1395 | ||
1396 | /* Walk down the RIPng routing table then clear changed flag. */ | |
6ac29a51 PJ |
1397 | static void |
1398 | ripng_clear_changed_flag (void) | |
718e3744 | 1399 | { |
1400 | struct route_node *rp; | |
c880b636 FL |
1401 | struct ripng_info *rinfo = NULL; |
1402 | struct list *list = NULL; | |
1403 | struct listnode *listnode = NULL; | |
718e3744 | 1404 | |
1405 | for (rp = route_top (ripng->table); rp; rp = route_next (rp)) | |
c880b636 FL |
1406 | if ((list = rp->info) != NULL) |
1407 | for (ALL_LIST_ELEMENTS_RO (list, listnode, rinfo)) | |
1408 | { | |
1409 | UNSET_FLAG (rinfo->flags, RIPNG_RTF_CHANGED); | |
1410 | /* This flag can be set only on the first entry. */ | |
1411 | break; | |
1412 | } | |
718e3744 | 1413 | } |
1414 | ||
1415 | /* Regular update of RIPng route. Send all routing formation to RIPng | |
1416 | enabled interface. */ | |
6ac29a51 | 1417 | static int |
718e3744 | 1418 | ripng_update (struct thread *t) |
1419 | { | |
52dc7ee6 | 1420 | struct listnode *node; |
718e3744 | 1421 | struct interface *ifp; |
1422 | struct ripng_interface *ri; | |
1423 | ||
1424 | /* Clear update timer thread. */ | |
1425 | ripng->t_update = NULL; | |
1426 | ||
1427 | /* Logging update event. */ | |
1428 | if (IS_RIPNG_DEBUG_EVENT) | |
c6106812 | 1429 | zlog_debug ("RIPng update timer expired!"); |
718e3744 | 1430 | |
1431 | /* Supply routes to each interface. */ | |
b2d7c082 | 1432 | for (ALL_LIST_ELEMENTS_RO (vrf_iflist (VRF_DEFAULT), node, ifp)) |
718e3744 | 1433 | { |
718e3744 | 1434 | ri = ifp->info; |
1435 | ||
1436 | if (if_is_loopback (ifp) || ! if_is_up (ifp)) | |
1437 | continue; | |
1438 | ||
1439 | if (! ri->running) | |
1440 | continue; | |
1441 | ||
1442 | /* When passive interface is specified, suppress announce to the | |
1443 | interface. */ | |
1444 | if (ri->passive) | |
1445 | continue; | |
1446 | ||
1447 | #if RIPNG_ADVANCED | |
1448 | if (ri->ri_send == RIPNG_SEND_OFF) | |
1449 | { | |
1450 | if (IS_RIPNG_DEBUG_EVENT) | |
4525281a | 1451 | zlog_debug ("[Event] RIPng send to if %d is suppressed by config", |
718e3744 | 1452 | ifp->ifindex); |
1453 | continue; | |
1454 | } | |
1455 | #endif /* RIPNG_ADVANCED */ | |
1456 | ||
a94434b6 | 1457 | ripng_output_process (ifp, NULL, ripng_all_route); |
718e3744 | 1458 | } |
1459 | ||
1460 | /* Triggered updates may be suppressed if a regular update is due by | |
1461 | the time the triggered update would be sent. */ | |
1462 | if (ripng->t_triggered_interval) | |
1463 | { | |
1464 | thread_cancel (ripng->t_triggered_interval); | |
1465 | ripng->t_triggered_interval = NULL; | |
1466 | } | |
1467 | ripng->trigger = 0; | |
1468 | ||
1469 | /* Reset flush event. */ | |
1470 | ripng_event (RIPNG_UPDATE_EVENT, 0); | |
1471 | ||
1472 | return 0; | |
1473 | } | |
1474 | ||
1475 | /* Triggered update interval timer. */ | |
6ac29a51 | 1476 | static int |
718e3744 | 1477 | ripng_triggered_interval (struct thread *t) |
1478 | { | |
1479 | ripng->t_triggered_interval = NULL; | |
1480 | ||
1481 | if (ripng->trigger) | |
1482 | { | |
1483 | ripng->trigger = 0; | |
1484 | ripng_triggered_update (t); | |
1485 | } | |
1486 | return 0; | |
1487 | } | |
1488 | ||
1489 | /* Execute triggered update. */ | |
1490 | int | |
1491 | ripng_triggered_update (struct thread *t) | |
1492 | { | |
52dc7ee6 | 1493 | struct listnode *node; |
718e3744 | 1494 | struct interface *ifp; |
1495 | struct ripng_interface *ri; | |
1496 | int interval; | |
1497 | ||
1498 | ripng->t_triggered_update = NULL; | |
1499 | ||
1500 | /* Cancel interval timer. */ | |
1501 | if (ripng->t_triggered_interval) | |
1502 | { | |
1503 | thread_cancel (ripng->t_triggered_interval); | |
1504 | ripng->t_triggered_interval = NULL; | |
1505 | } | |
1506 | ripng->trigger = 0; | |
1507 | ||
1508 | /* Logging triggered update. */ | |
1509 | if (IS_RIPNG_DEBUG_EVENT) | |
c6106812 | 1510 | zlog_debug ("RIPng triggered update!"); |
718e3744 | 1511 | |
1512 | /* Split Horizon processing is done when generating triggered | |
1513 | updates as well as normal updates (see section 2.6). */ | |
b2d7c082 | 1514 | for (ALL_LIST_ELEMENTS_RO (vrf_iflist (VRF_DEFAULT), node, ifp)) |
718e3744 | 1515 | { |
718e3744 | 1516 | ri = ifp->info; |
1517 | ||
1518 | if (if_is_loopback (ifp) || ! if_is_up (ifp)) | |
1519 | continue; | |
1520 | ||
1521 | if (! ri->running) | |
1522 | continue; | |
1523 | ||
1524 | /* When passive interface is specified, suppress announce to the | |
1525 | interface. */ | |
1526 | if (ri->passive) | |
1527 | continue; | |
1528 | ||
a94434b6 | 1529 | ripng_output_process (ifp, NULL, ripng_changed_route); |
718e3744 | 1530 | } |
1531 | ||
1532 | /* Once all of the triggered updates have been generated, the route | |
1533 | change flags should be cleared. */ | |
1534 | ripng_clear_changed_flag (); | |
1535 | ||
1536 | /* After a triggered update is sent, a timer should be set for a | |
1537 | random interval between 1 and 5 seconds. If other changes that | |
1538 | would trigger updates occur before the timer expires, a single | |
1539 | update is triggered when the timer expires. */ | |
1540 | interval = (random () % 5) + 1; | |
1541 | ||
1542 | ripng->t_triggered_interval = | |
1543 | thread_add_timer (master, ripng_triggered_interval, NULL, interval); | |
1544 | ||
1545 | return 0; | |
1546 | } | |
1547 | ||
1548 | /* Write routing table entry to the stream and return next index of | |
1549 | the routing table entry in the stream. */ | |
1550 | int | |
1551 | ripng_write_rte (int num, struct stream *s, struct prefix_ipv6 *p, | |
a94434b6 | 1552 | struct in6_addr *nexthop, u_int16_t tag, u_char metric) |
718e3744 | 1553 | { |
1554 | /* RIPng packet header. */ | |
1555 | if (num == 0) | |
1556 | { | |
1557 | stream_putc (s, RIPNG_RESPONSE); | |
1558 | stream_putc (s, RIPNG_V1); | |
1559 | stream_putw (s, 0); | |
1560 | } | |
1561 | ||
1562 | /* Write routing table entry. */ | |
a94434b6 | 1563 | if (!nexthop) |
c9e52be3 | 1564 | stream_write (s, (u_char *) &p->prefix, sizeof (struct in6_addr)); |
a94434b6 | 1565 | else |
c9e52be3 | 1566 | stream_write (s, (u_char *) nexthop, sizeof (struct in6_addr)); |
718e3744 | 1567 | stream_putw (s, tag); |
a94434b6 | 1568 | if (p) |
1569 | stream_putc (s, p->prefixlen); | |
1570 | else | |
1571 | stream_putc (s, 0); | |
718e3744 | 1572 | stream_putc (s, metric); |
1573 | ||
1574 | return ++num; | |
1575 | } | |
1576 | ||
1577 | /* Send RESPONSE message to specified destination. */ | |
1578 | void | |
1579 | ripng_output_process (struct interface *ifp, struct sockaddr_in6 *to, | |
a94434b6 | 1580 | int route_type) |
718e3744 | 1581 | { |
1582 | int ret; | |
718e3744 | 1583 | struct route_node *rp; |
1584 | struct ripng_info *rinfo; | |
1585 | struct ripng_interface *ri; | |
1586 | struct ripng_aggregate *aggregate; | |
1587 | struct prefix_ipv6 *p; | |
a94434b6 | 1588 | struct list * ripng_rte_list; |
c880b636 FL |
1589 | struct list *list = NULL; |
1590 | struct listnode *listnode = NULL; | |
718e3744 | 1591 | |
a94434b6 | 1592 | if (IS_RIPNG_DEBUG_EVENT) { |
1593 | if (to) | |
c6106812 | 1594 | zlog_debug ("RIPng update routes to neighbor %s", |
3a2ce6a1 | 1595 | inet6_ntoa(to->sin6_addr)); |
a94434b6 | 1596 | else |
c6106812 | 1597 | zlog_debug ("RIPng update routes on interface %s", ifp->name); |
a94434b6 | 1598 | } |
718e3744 | 1599 | |
718e3744 | 1600 | /* Get RIPng interface. */ |
1601 | ri = ifp->info; | |
a94434b6 | 1602 | |
1603 | ripng_rte_list = ripng_rte_new(); | |
1604 | ||
718e3744 | 1605 | for (rp = route_top (ripng->table); rp; rp = route_next (rp)) |
1606 | { | |
c880b636 FL |
1607 | if ((list = rp->info) != NULL && |
1608 | (rinfo = listgetdata (listhead (list))) != NULL && | |
1609 | rinfo->suppress == 0) | |
718e3744 | 1610 | { |
a94434b6 | 1611 | /* If no route-map are applied, the RTE will be these following |
1612 | * informations. | |
1613 | */ | |
718e3744 | 1614 | p = (struct prefix_ipv6 *) &rp->p; |
a94434b6 | 1615 | rinfo->metric_out = rinfo->metric; |
1616 | rinfo->tag_out = rinfo->tag; | |
1617 | memset(&rinfo->nexthop_out, 0, sizeof(rinfo->nexthop_out)); | |
1618 | /* In order to avoid some local loops, | |
1619 | * if the RIPng route has a nexthop via this interface, keep the nexthop, | |
1620 | * otherwise set it to 0. The nexthop should not be propagated | |
1621 | * beyond the local broadcast/multicast area in order | |
1622 | * to avoid an IGP multi-level recursive look-up. | |
1623 | */ | |
1624 | if (rinfo->ifindex == ifp->ifindex) | |
1625 | rinfo->nexthop_out = rinfo->nexthop; | |
1626 | ||
1627 | /* Apply output filters. */ | |
644ed6c5 | 1628 | ret = ripng_filter (RIPNG_FILTER_OUT, p, ri); |
a94434b6 | 1629 | if (ret < 0) |
1630 | continue; | |
718e3744 | 1631 | |
1632 | /* Changed route only output. */ | |
1633 | if (route_type == ripng_changed_route && | |
1634 | (! (rinfo->flags & RIPNG_RTF_CHANGED))) | |
1635 | continue; | |
1636 | ||
1637 | /* Split horizon. */ | |
a94434b6 | 1638 | if (ri->split_horizon == RIPNG_SPLIT_HORIZON) |
1639 | { | |
1640 | /* We perform split horizon for RIPng routes. */ | |
c880b636 FL |
1641 | int suppress = 0; |
1642 | struct ripng_info *tmp_rinfo = NULL; | |
1643 | ||
1644 | for (ALL_LIST_ELEMENTS_RO (list, listnode, tmp_rinfo)) | |
1645 | if (tmp_rinfo->type == ZEBRA_ROUTE_RIPNG && | |
1646 | tmp_rinfo->ifindex == ifp->ifindex) | |
1647 | { | |
1648 | suppress = 1; | |
1649 | break; | |
1650 | } | |
1651 | if (suppress) | |
a94434b6 | 1652 | continue; |
1653 | } | |
718e3744 | 1654 | |
1655 | /* Preparation for route-map. */ | |
a94434b6 | 1656 | rinfo->metric_set = 0; |
1657 | /* nexthop_out, | |
1658 | * metric_out | |
1659 | * and tag_out are already initialized. | |
1660 | */ | |
718e3744 | 1661 | |
a94434b6 | 1662 | /* Interface route-map */ |
718e3744 | 1663 | if (ri->routemap[RIPNG_FILTER_OUT]) |
1664 | { | |
1665 | int ret; | |
718e3744 | 1666 | |
1667 | ret = route_map_apply (ri->routemap[RIPNG_FILTER_OUT], | |
1668 | (struct prefix *) p, RMAP_RIPNG, | |
a94434b6 | 1669 | rinfo); |
718e3744 | 1670 | |
1671 | if (ret == RMAP_DENYMATCH) | |
1672 | { | |
1673 | if (IS_RIPNG_DEBUG_PACKET) | |
c6106812 | 1674 | zlog_debug ("RIPng %s/%d is filtered by route-map out", |
3a2ce6a1 | 1675 | inet6_ntoa (p->prefix), p->prefixlen); |
a94434b6 | 1676 | continue; |
718e3744 | 1677 | } |
1678 | ||
718e3744 | 1679 | } |
1680 | ||
a94434b6 | 1681 | /* Redistribute route-map. */ |
1682 | if (ripng->route_map[rinfo->type].name) | |
718e3744 | 1683 | { |
a94434b6 | 1684 | int ret; |
1685 | ||
1686 | ret = route_map_apply (ripng->route_map[rinfo->type].map, | |
1687 | (struct prefix *) p, RMAP_RIPNG, | |
bb3a023e | 1688 | rinfo); |
a94434b6 | 1689 | |
1690 | if (ret == RMAP_DENYMATCH) | |
718e3744 | 1691 | { |
a94434b6 | 1692 | if (IS_RIPNG_DEBUG_PACKET) |
c6106812 | 1693 | zlog_debug ("RIPng %s/%d is filtered by route-map", |
3a2ce6a1 | 1694 | inet6_ntoa (p->prefix), p->prefixlen); |
a94434b6 | 1695 | continue; |
718e3744 | 1696 | } |
a94434b6 | 1697 | } |
718e3744 | 1698 | |
a94434b6 | 1699 | /* When the route-map does not set metric. */ |
1700 | if (! rinfo->metric_set) | |
1701 | { | |
1702 | /* If the redistribute metric is set. */ | |
1703 | if (ripng->route_map[rinfo->type].metric_config | |
1704 | && rinfo->metric != RIPNG_METRIC_INFINITY) | |
1705 | { | |
1706 | rinfo->metric_out = ripng->route_map[rinfo->type].metric; | |
1707 | } | |
1708 | else | |
718e3744 | 1709 | { |
a94434b6 | 1710 | /* If the route is not connected or localy generated |
1711 | one, use default-metric value */ | |
1712 | if (rinfo->type != ZEBRA_ROUTE_RIPNG | |
1713 | && rinfo->type != ZEBRA_ROUTE_CONNECT | |
718e3744 | 1714 | && rinfo->metric != RIPNG_METRIC_INFINITY) |
a94434b6 | 1715 | rinfo->metric_out = ripng->default_metric; |
718e3744 | 1716 | } |
1717 | } | |
1718 | ||
a94434b6 | 1719 | /* Apply offset-list */ |
1720 | if (rinfo->metric_out != RIPNG_METRIC_INFINITY) | |
1721 | ripng_offset_list_apply_out (p, ifp, &rinfo->metric_out); | |
1722 | ||
1723 | if (rinfo->metric_out > RIPNG_METRIC_INFINITY) | |
1724 | rinfo->metric_out = RIPNG_METRIC_INFINITY; | |
1725 | ||
1726 | /* Perform split-horizon with poisoned reverse | |
1727 | * for RIPng routes. | |
1728 | **/ | |
1729 | if (ri->split_horizon == RIPNG_SPLIT_HORIZON_POISONED_REVERSE) { | |
c880b636 FL |
1730 | struct ripng_info *tmp_rinfo = NULL; |
1731 | ||
1732 | for (ALL_LIST_ELEMENTS_RO (list, listnode, tmp_rinfo)) | |
1733 | if ((tmp_rinfo->type == ZEBRA_ROUTE_RIPNG) && | |
1734 | tmp_rinfo->ifindex == ifp->ifindex) | |
1735 | rinfo->metric_out = RIPNG_METRIC_INFINITY; | |
a94434b6 | 1736 | } |
1737 | ||
1738 | /* Add RTE to the list */ | |
1739 | ripng_rte_add(ripng_rte_list, p, rinfo, NULL); | |
718e3744 | 1740 | } |
a94434b6 | 1741 | |
1742 | /* Process the aggregated RTE entry */ | |
718e3744 | 1743 | if ((aggregate = rp->aggregate) != NULL && |
1744 | aggregate->count > 0 && | |
1745 | aggregate->suppress == 0) | |
1746 | { | |
a94434b6 | 1747 | /* If no route-map are applied, the RTE will be these following |
1748 | * informations. | |
1749 | */ | |
718e3744 | 1750 | p = (struct prefix_ipv6 *) &rp->p; |
a94434b6 | 1751 | aggregate->metric_set = 0; |
1752 | aggregate->metric_out = aggregate->metric; | |
1753 | aggregate->tag_out = aggregate->tag; | |
1754 | memset(&aggregate->nexthop_out, 0, sizeof(aggregate->nexthop_out)); | |
718e3744 | 1755 | |
1756 | /* Apply output filters.*/ | |
644ed6c5 | 1757 | ret = ripng_filter (RIPNG_FILTER_OUT, p, ri); |
a94434b6 | 1758 | if (ret < 0) |
1759 | continue; | |
718e3744 | 1760 | |
a94434b6 | 1761 | /* Interface route-map */ |
718e3744 | 1762 | if (ri->routemap[RIPNG_FILTER_OUT]) |
1763 | { | |
1764 | int ret; | |
1765 | struct ripng_info newinfo; | |
1766 | ||
a94434b6 | 1767 | /* let's cast the aggregate structure to ripng_info */ |
718e3744 | 1768 | memset (&newinfo, 0, sizeof (struct ripng_info)); |
a94434b6 | 1769 | /* the nexthop is :: */ |
1770 | newinfo.metric = aggregate->metric; | |
1771 | newinfo.metric_out = aggregate->metric_out; | |
1772 | newinfo.tag = aggregate->tag; | |
1773 | newinfo.tag_out = aggregate->tag_out; | |
718e3744 | 1774 | |
1775 | ret = route_map_apply (ri->routemap[RIPNG_FILTER_OUT], | |
1776 | (struct prefix *) p, RMAP_RIPNG, | |
1777 | &newinfo); | |
1778 | ||
1779 | if (ret == RMAP_DENYMATCH) | |
1780 | { | |
1781 | if (IS_RIPNG_DEBUG_PACKET) | |
c6106812 | 1782 | zlog_debug ("RIPng %s/%d is filtered by route-map out", |
3a2ce6a1 | 1783 | inet6_ntoa (p->prefix), p->prefixlen); |
a94434b6 | 1784 | continue; |
718e3744 | 1785 | } |
1786 | ||
a94434b6 | 1787 | aggregate->metric_out = newinfo.metric_out; |
1788 | aggregate->tag_out = newinfo.tag_out; | |
1789 | if (IN6_IS_ADDR_LINKLOCAL(&newinfo.nexthop_out)) | |
1790 | aggregate->nexthop_out = newinfo.nexthop_out; | |
718e3744 | 1791 | } |
1792 | ||
a94434b6 | 1793 | /* There is no redistribute routemap for the aggregated RTE */ |
1794 | ||
718e3744 | 1795 | /* Changed route only output. */ |
a94434b6 | 1796 | /* XXX, vincent, in order to increase time convergence, |
1797 | * it should be announced if a child has changed. | |
1798 | */ | |
718e3744 | 1799 | if (route_type == ripng_changed_route) |
1800 | continue; | |
1801 | ||
a94434b6 | 1802 | /* Apply offset-list */ |
1803 | if (aggregate->metric_out != RIPNG_METRIC_INFINITY) | |
1804 | ripng_offset_list_apply_out (p, ifp, &aggregate->metric_out); | |
1805 | ||
1806 | if (aggregate->metric_out > RIPNG_METRIC_INFINITY) | |
1807 | aggregate->metric_out = RIPNG_METRIC_INFINITY; | |
1808 | ||
1809 | /* Add RTE to the list */ | |
1810 | ripng_rte_add(ripng_rte_list, p, NULL, aggregate); | |
718e3744 | 1811 | } |
1812 | ||
1813 | } | |
718e3744 | 1814 | |
a94434b6 | 1815 | /* Flush the list */ |
1816 | ripng_rte_send(ripng_rte_list, ifp, to); | |
1817 | ripng_rte_free(ripng_rte_list); | |
718e3744 | 1818 | } |
1819 | ||
1820 | /* Create new RIPng instance and set it to global variable. */ | |
6ac29a51 PJ |
1821 | static int |
1822 | ripng_create (void) | |
718e3744 | 1823 | { |
1824 | /* ripng should be NULL. */ | |
1825 | assert (ripng == NULL); | |
1826 | ||
1827 | /* Allocaste RIPng instance. */ | |
393deb9b | 1828 | ripng = XCALLOC (MTYPE_RIPNG, sizeof (struct ripng)); |
718e3744 | 1829 | |
1830 | /* Default version and timer values. */ | |
1831 | ripng->version = RIPNG_V1; | |
1832 | ripng->update_time = RIPNG_UPDATE_TIMER_DEFAULT; | |
1833 | ripng->timeout_time = RIPNG_TIMEOUT_TIMER_DEFAULT; | |
1834 | ripng->garbage_time = RIPNG_GARBAGE_TIMER_DEFAULT; | |
1835 | ripng->default_metric = RIPNG_DEFAULT_METRIC_DEFAULT; | |
1836 | ||
1837 | /* Make buffer. */ | |
1838 | ripng->ibuf = stream_new (RIPNG_MAX_PACKET_SIZE * 5); | |
1839 | ripng->obuf = stream_new (RIPNG_MAX_PACKET_SIZE); | |
1840 | ||
1841 | /* Initialize RIPng routig table. */ | |
1842 | ripng->table = route_table_init (); | |
1843 | ripng->route = route_table_init (); | |
1844 | ripng->aggregate = route_table_init (); | |
1845 | ||
1846 | /* Make socket. */ | |
1847 | ripng->sock = ripng_make_socket (); | |
1848 | if (ripng->sock < 0) | |
1849 | return ripng->sock; | |
1850 | ||
1851 | /* Threads. */ | |
1852 | ripng_event (RIPNG_READ, ripng->sock); | |
1853 | ripng_event (RIPNG_UPDATE_EVENT, 1); | |
1854 | ||
1855 | return 0; | |
1856 | } | |
1857 | ||
a94434b6 | 1858 | /* Send RIPng request to the interface. */ |
718e3744 | 1859 | int |
1860 | ripng_request (struct interface *ifp) | |
1861 | { | |
1862 | struct rte *rte; | |
1863 | struct ripng_packet ripng_packet; | |
1864 | ||
a94434b6 | 1865 | /* In default ripd doesn't send RIP_REQUEST to the loopback interface. */ |
1866 | if (if_is_loopback(ifp)) | |
1867 | return 0; | |
1868 | ||
1869 | /* If interface is down, don't send RIP packet. */ | |
1870 | if (! if_is_up (ifp)) | |
1871 | return 0; | |
1872 | ||
718e3744 | 1873 | if (IS_RIPNG_DEBUG_EVENT) |
c6106812 | 1874 | zlog_debug ("RIPng send request to %s", ifp->name); |
718e3744 | 1875 | |
1876 | memset (&ripng_packet, 0, sizeof (ripng_packet)); | |
1877 | ripng_packet.command = RIPNG_REQUEST; | |
1878 | ripng_packet.version = RIPNG_V1; | |
1879 | rte = ripng_packet.rte; | |
1880 | rte->metric = RIPNG_METRIC_INFINITY; | |
1881 | ||
1882 | return ripng_send_packet ((caddr_t) &ripng_packet, sizeof (ripng_packet), | |
1883 | NULL, ifp); | |
1884 | } | |
1885 | ||
6b0655a2 | 1886 | |
6ac29a51 | 1887 | static int |
718e3744 | 1888 | ripng_update_jitter (int time) |
1889 | { | |
b06fd125 | 1890 | return ((random () % (time + 1)) - (time / 2)); |
718e3744 | 1891 | } |
1892 | ||
1893 | void | |
1894 | ripng_event (enum ripng_event event, int sock) | |
1895 | { | |
718e3744 | 1896 | int jitter = 0; |
1897 | ||
1898 | switch (event) | |
1899 | { | |
1900 | case RIPNG_READ: | |
1901 | if (!ripng->t_read) | |
1902 | ripng->t_read = thread_add_read (master, ripng_read, NULL, sock); | |
1903 | break; | |
1904 | case RIPNG_UPDATE_EVENT: | |
1905 | if (ripng->t_update) | |
1906 | { | |
1907 | thread_cancel (ripng->t_update); | |
1908 | ripng->t_update = NULL; | |
1909 | } | |
1910 | /* Update timer jitter. */ | |
1911 | jitter = ripng_update_jitter (ripng->update_time); | |
1912 | ||
1913 | ripng->t_update = | |
1914 | thread_add_timer (master, ripng_update, NULL, | |
1915 | sock ? 2 : ripng->update_time + jitter); | |
1916 | break; | |
1917 | case RIPNG_TRIGGERED_UPDATE: | |
1918 | if (ripng->t_triggered_interval) | |
1919 | ripng->trigger = 1; | |
1920 | else if (! ripng->t_triggered_update) | |
1921 | ripng->t_triggered_update = | |
1922 | thread_add_event (master, ripng_triggered_update, NULL, 0); | |
1923 | break; | |
1924 | default: | |
1925 | break; | |
1926 | } | |
1927 | } | |
6b0655a2 | 1928 | |
718e3744 | 1929 | |
718e3744 | 1930 | /* Print out routes update time. */ |
1931 | static void | |
1932 | ripng_vty_out_uptime (struct vty *vty, struct ripng_info *rinfo) | |
1933 | { | |
718e3744 | 1934 | time_t clock; |
1935 | struct tm *tm; | |
1936 | #define TIME_BUF 25 | |
1937 | char timebuf [TIME_BUF]; | |
1938 | struct thread *thread; | |
1939 | ||
718e3744 | 1940 | if ((thread = rinfo->t_timeout) != NULL) |
1941 | { | |
6dfa827b | 1942 | clock = thread_timer_remain_second (thread); |
718e3744 | 1943 | tm = gmtime (&clock); |
1944 | strftime (timebuf, TIME_BUF, "%M:%S", tm); | |
1945 | vty_out (vty, "%5s", timebuf); | |
1946 | } | |
1947 | else if ((thread = rinfo->t_garbage_collect) != NULL) | |
1948 | { | |
6dfa827b | 1949 | clock = thread_timer_remain_second (thread); |
718e3744 | 1950 | tm = gmtime (&clock); |
1951 | strftime (timebuf, TIME_BUF, "%M:%S", tm); | |
1952 | vty_out (vty, "%5s", timebuf); | |
1953 | } | |
1954 | } | |
1955 | ||
6ac29a51 | 1956 | static char * |
a94434b6 | 1957 | ripng_route_subtype_print (struct ripng_info *rinfo) |
1958 | { | |
1959 | static char str[3]; | |
1960 | memset(str, 0, 3); | |
1961 | ||
1962 | if (rinfo->suppress) | |
1963 | strcat(str, "S"); | |
1964 | ||
1965 | switch (rinfo->sub_type) | |
1966 | { | |
1967 | case RIPNG_ROUTE_RTE: | |
1968 | strcat(str, "n"); | |
1969 | break; | |
1970 | case RIPNG_ROUTE_STATIC: | |
1971 | strcat(str, "s"); | |
1972 | break; | |
1973 | case RIPNG_ROUTE_DEFAULT: | |
1974 | strcat(str, "d"); | |
1975 | break; | |
1976 | case RIPNG_ROUTE_REDISTRIBUTE: | |
1977 | strcat(str, "r"); | |
1978 | break; | |
1979 | case RIPNG_ROUTE_INTERFACE: | |
1980 | strcat(str, "i"); | |
1981 | break; | |
1982 | default: | |
1983 | strcat(str, "?"); | |
1984 | break; | |
1985 | } | |
1986 | ||
1987 | return str; | |
1988 | } | |
1989 | ||
718e3744 | 1990 | DEFUN (show_ipv6_ripng, |
1991 | show_ipv6_ripng_cmd, | |
1992 | "show ipv6 ripng", | |
1993 | SHOW_STR | |
8d0f15fd | 1994 | IPV6_STR |
718e3744 | 1995 | "Show RIPng routes\n") |
1996 | { | |
1997 | struct route_node *rp; | |
1998 | struct ripng_info *rinfo; | |
1999 | struct ripng_aggregate *aggregate; | |
2000 | struct prefix_ipv6 *p; | |
c880b636 FL |
2001 | struct list *list = NULL; |
2002 | struct listnode *listnode = NULL; | |
718e3744 | 2003 | int len; |
2004 | ||
a94434b6 | 2005 | if (! ripng) |
2006 | return CMD_SUCCESS; | |
2007 | ||
718e3744 | 2008 | /* Header of display. */ |
a94434b6 | 2009 | vty_out (vty, "Codes: R - RIPng, C - connected, S - Static, O - OSPF, B - BGP%s" |
2010 | "Sub-codes:%s" | |
2011 | " (n) - normal, (s) - static, (d) - default, (r) - redistribute,%s" | |
2012 | " (i) - interface, (a/S) - aggregated/Suppressed%s%s" | |
2013 | " Network Next Hop Via Metric Tag Time%s", | |
2014 | VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE, | |
718e3744 | 2015 | VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE); |
2016 | ||
2017 | for (rp = route_top (ripng->table); rp; rp = route_next (rp)) | |
2018 | { | |
2019 | if ((aggregate = rp->aggregate) != NULL) | |
2020 | { | |
2021 | p = (struct prefix_ipv6 *) &rp->p; | |
2022 | ||
2023 | #ifdef DEBUG | |
a94434b6 | 2024 | len = vty_out (vty, "R(a) %d/%d %s/%d ", |
718e3744 | 2025 | aggregate->count, aggregate->suppress, |
3a2ce6a1 | 2026 | inet6_ntoa (p->prefix), p->prefixlen); |
718e3744 | 2027 | #else |
a94434b6 | 2028 | len = vty_out (vty, "R(a) %s/%d ", |
3a2ce6a1 | 2029 | inet6_ntoa (p->prefix), p->prefixlen); |
718e3744 | 2030 | #endif /* DEBUG */ |
a94434b6 | 2031 | vty_out (vty, "%s", VTY_NEWLINE); |
2032 | vty_out (vty, "%*s", 18, " "); | |
718e3744 | 2033 | |
a94434b6 | 2034 | vty_out (vty, "%*s", 28, " "); |
dc9ffce8 CF |
2035 | vty_out (vty, "self %2d %3"ROUTE_TAG_PRI"%s", aggregate->metric, |
2036 | (route_tag_t)aggregate->tag, | |
718e3744 | 2037 | VTY_NEWLINE); |
2038 | } | |
2039 | ||
c880b636 FL |
2040 | if ((list = rp->info) != NULL) |
2041 | for (ALL_LIST_ELEMENTS_RO (list, listnode, rinfo)) | |
718e3744 | 2042 | { |
2043 | p = (struct prefix_ipv6 *) &rp->p; | |
2044 | ||
2045 | #ifdef DEBUG | |
f52d13cb | 2046 | len = vty_out (vty, "%c(%s) 0/%d %s/%d ", |
2047 | zebra_route_char(rinfo->type), | |
a94434b6 | 2048 | ripng_route_subtype_print(rinfo), |
718e3744 | 2049 | rinfo->suppress, |
3a2ce6a1 | 2050 | inet6_ntoa (p->prefix), p->prefixlen); |
718e3744 | 2051 | #else |
f52d13cb | 2052 | len = vty_out (vty, "%c(%s) %s/%d ", |
2053 | zebra_route_char(rinfo->type), | |
a94434b6 | 2054 | ripng_route_subtype_print(rinfo), |
3a2ce6a1 | 2055 | inet6_ntoa (p->prefix), p->prefixlen); |
718e3744 | 2056 | #endif /* DEBUG */ |
a94434b6 | 2057 | vty_out (vty, "%s", VTY_NEWLINE); |
2058 | vty_out (vty, "%*s", 18, " "); | |
3a2ce6a1 | 2059 | len = vty_out (vty, "%s", inet6_ntoa (rinfo->nexthop)); |
a94434b6 | 2060 | |
2061 | len = 28 - len; | |
718e3744 | 2062 | if (len > 0) |
a94434b6 | 2063 | len = vty_out (vty, "%*s", len, " "); |
718e3744 | 2064 | |
a94434b6 | 2065 | /* from */ |
2066 | if ((rinfo->type == ZEBRA_ROUTE_RIPNG) && | |
2067 | (rinfo->sub_type == RIPNG_ROUTE_RTE)) | |
2068 | { | |
baaea325 | 2069 | len = vty_out (vty, "%s", ifindex2ifname(rinfo->ifindex, VRF_DEFAULT)); |
a94434b6 | 2070 | } else if (rinfo->metric == RIPNG_METRIC_INFINITY) |
2071 | { | |
2072 | len = vty_out (vty, "kill"); | |
2073 | } else | |
2074 | len = vty_out (vty, "self"); | |
718e3744 | 2075 | |
a94434b6 | 2076 | len = 9 - len; |
718e3744 | 2077 | if (len > 0) |
2078 | vty_out (vty, "%*s", len, " "); | |
2079 | ||
dc9ffce8 CF |
2080 | vty_out (vty, " %2d %3"ROUTE_TAG_PRI" ", |
2081 | rinfo->metric, (route_tag_t)rinfo->tag); | |
718e3744 | 2082 | |
a94434b6 | 2083 | /* time */ |
2084 | if ((rinfo->type == ZEBRA_ROUTE_RIPNG) && | |
2085 | (rinfo->sub_type == RIPNG_ROUTE_RTE)) | |
2086 | { | |
2087 | /* RTE from remote RIP routers */ | |
718e3744 | 2088 | ripng_vty_out_uptime (vty, rinfo); |
a94434b6 | 2089 | } else if (rinfo->metric == RIPNG_METRIC_INFINITY) |
2090 | { | |
2091 | /* poisonous reversed routes (gc) */ | |
2092 | ripng_vty_out_uptime (vty, rinfo); | |
2093 | } | |
718e3744 | 2094 | |
2095 | vty_out (vty, "%s", VTY_NEWLINE); | |
2096 | } | |
2097 | } | |
2098 | ||
2099 | return CMD_SUCCESS; | |
2100 | } | |
2101 | ||
a94434b6 | 2102 | DEFUN (show_ipv6_ripng_status, |
2103 | show_ipv6_ripng_status_cmd, | |
2104 | "show ipv6 ripng status", | |
2105 | SHOW_STR | |
8d0f15fd | 2106 | IPV6_STR |
a94434b6 | 2107 | "Show RIPng routes\n" |
2108 | "IPv6 routing protocol process parameters and statistics\n") | |
2109 | { | |
52dc7ee6 | 2110 | struct listnode *node; |
1eb8ef25 | 2111 | struct interface *ifp; |
a94434b6 | 2112 | |
2113 | if (! ripng) | |
2114 | return CMD_SUCCESS; | |
2115 | ||
2116 | vty_out (vty, "Routing Protocol is \"RIPng\"%s", VTY_NEWLINE); | |
2117 | vty_out (vty, " Sending updates every %ld seconds with +/-50%%,", | |
2118 | ripng->update_time); | |
6dfa827b VJ |
2119 | vty_out (vty, " next due in %lu seconds%s", |
2120 | thread_timer_remain_second (ripng->t_update), | |
a94434b6 | 2121 | VTY_NEWLINE); |
2122 | vty_out (vty, " Timeout after %ld seconds,", ripng->timeout_time); | |
2123 | vty_out (vty, " garbage collect after %ld seconds%s", ripng->garbage_time, | |
2124 | VTY_NEWLINE); | |
2125 | ||
2126 | /* Filtering status show. */ | |
2127 | config_show_distribute (vty); | |
2128 | ||
2129 | /* Default metric information. */ | |
2130 | vty_out (vty, " Default redistribution metric is %d%s", | |
2131 | ripng->default_metric, VTY_NEWLINE); | |
2132 | ||
2133 | /* Redistribute information. */ | |
2134 | vty_out (vty, " Redistributing:"); | |
2135 | ripng_redistribute_write (vty, 0); | |
2136 | vty_out (vty, "%s", VTY_NEWLINE); | |
2137 | ||
2138 | vty_out (vty, " Default version control: send version %d,", ripng->version); | |
2139 | vty_out (vty, " receive version %d %s", ripng->version, | |
2140 | VTY_NEWLINE); | |
2141 | ||
2142 | vty_out (vty, " Interface Send Recv%s", VTY_NEWLINE); | |
2143 | ||
b2d7c082 | 2144 | for (ALL_LIST_ELEMENTS_RO (vrf_iflist (VRF_DEFAULT), node, ifp)) |
a94434b6 | 2145 | { |
2146 | struct ripng_interface *ri; | |
1eb8ef25 | 2147 | |
a94434b6 | 2148 | ri = ifp->info; |
2149 | ||
2150 | if (ri->enable_network || ri->enable_interface) | |
2151 | { | |
2152 | ||
2153 | vty_out (vty, " %-17s%-3d %-3d%s", ifp->name, | |
2154 | ripng->version, | |
2155 | ripng->version, | |
2156 | VTY_NEWLINE); | |
2157 | } | |
2158 | } | |
2159 | ||
2160 | vty_out (vty, " Routing for Networks:%s", VTY_NEWLINE); | |
2161 | ripng_network_write (vty, 0); | |
2162 | ||
2163 | vty_out (vty, " Routing Information Sources:%s", VTY_NEWLINE); | |
2164 | vty_out (vty, " Gateway BadPackets BadRoutes Distance Last Update%s", VTY_NEWLINE); | |
2165 | ripng_peer_display (vty); | |
2166 | ||
2167 | return CMD_SUCCESS; | |
2168 | } | |
2169 | ||
d7f966ab RW |
2170 | DEFUN (clear_ipv6_rip, |
2171 | clear_ipv6_rip_cmd, | |
2172 | "clear ipv6 ripng", | |
2173 | CLEAR_STR | |
2174 | IPV6_STR | |
2175 | "Clear IPv6 RIP database") | |
2176 | { | |
2177 | struct route_node *rp; | |
2178 | struct ripng_info *rinfo; | |
2179 | struct list *list; | |
2180 | struct listnode *listnode; | |
2181 | ||
2182 | /* Clear received RIPng routes */ | |
2183 | for (rp = route_top (ripng->table); rp; rp = route_next (rp)) | |
2184 | { | |
2185 | list = rp->info; | |
2186 | if (list == NULL) | |
2187 | continue; | |
2188 | ||
2189 | for (ALL_LIST_ELEMENTS_RO (list, listnode, rinfo)) | |
2190 | { | |
2191 | if (! ripng_route_rte (rinfo)) | |
2192 | continue; | |
2193 | ||
2194 | if (CHECK_FLAG (rinfo->flags, RIPNG_RTF_FIB)) | |
2195 | ripng_zebra_ipv6_delete (rp); | |
2196 | break; | |
2197 | } | |
2198 | ||
2199 | if (rinfo) | |
2200 | { | |
2201 | RIPNG_TIMER_OFF (rinfo->t_timeout); | |
2202 | RIPNG_TIMER_OFF (rinfo->t_garbage_collect); | |
2203 | listnode_delete (list, rinfo); | |
2204 | ripng_info_free (rinfo); | |
2205 | } | |
2206 | ||
2207 | if (list_isempty (list)) | |
2208 | { | |
2209 | list_free (list); | |
2210 | rp->info = NULL; | |
2211 | route_unlock_node (rp); | |
2212 | } | |
2213 | } | |
2214 | ||
2215 | return CMD_SUCCESS; | |
2216 | } | |
2217 | ||
718e3744 | 2218 | DEFUN (router_ripng, |
2219 | router_ripng_cmd, | |
2220 | "router ripng", | |
2221 | "Enable a routing process\n" | |
2222 | "Make RIPng instance command\n") | |
2223 | { | |
2224 | int ret; | |
2225 | ||
2226 | vty->node = RIPNG_NODE; | |
2227 | ||
2228 | if (!ripng) | |
2229 | { | |
2230 | ret = ripng_create (); | |
2231 | ||
2232 | /* Notice to user we couldn't create RIPng. */ | |
2233 | if (ret < 0) | |
2234 | { | |
2235 | zlog_warn ("can't create RIPng"); | |
2236 | return CMD_WARNING; | |
2237 | } | |
2238 | } | |
2239 | ||
2240 | return CMD_SUCCESS; | |
2241 | } | |
2242 | ||
a94434b6 | 2243 | DEFUN (no_router_ripng, |
2244 | no_router_ripng_cmd, | |
2245 | "no router ripng", | |
2246 | NO_STR | |
2247 | "Enable a routing process\n" | |
2248 | "Make RIPng instance command\n") | |
2249 | { | |
2250 | if(ripng) | |
2251 | ripng_clean(); | |
2252 | return CMD_SUCCESS; | |
2253 | } | |
2254 | ||
718e3744 | 2255 | DEFUN (ripng_route, |
2256 | ripng_route_cmd, | |
2257 | "route IPV6ADDR", | |
2258 | "Static route setup\n" | |
2259 | "Set static RIPng route announcement\n") | |
2260 | { | |
ab34a28a | 2261 | int idx_ipv6addr = 1; |
718e3744 | 2262 | int ret; |
2263 | struct prefix_ipv6 p; | |
2264 | struct route_node *rp; | |
2265 | ||
ab34a28a | 2266 | ret = str2prefix_ipv6 (argv[idx_ipv6addr]->arg, (struct prefix_ipv6 *)&p); |
718e3744 | 2267 | if (ret <= 0) |
2268 | { | |
2269 | vty_out (vty, "Malformed address%s", VTY_NEWLINE); | |
2270 | return CMD_WARNING; | |
2271 | } | |
2272 | apply_mask_ipv6 (&p); | |
2273 | ||
2274 | rp = route_node_get (ripng->route, (struct prefix *) &p); | |
2275 | if (rp->info) | |
2276 | { | |
2277 | vty_out (vty, "There is already same static route.%s", VTY_NEWLINE); | |
2278 | route_unlock_node (rp); | |
2279 | return CMD_WARNING; | |
2280 | } | |
2281 | rp->info = (void *)1; | |
2282 | ||
1796a585 | 2283 | ripng_redistribute_add (ZEBRA_ROUTE_RIPNG, RIPNG_ROUTE_STATIC, &p, 0, NULL, 0); |
718e3744 | 2284 | |
2285 | return CMD_SUCCESS; | |
2286 | } | |
2287 | ||
2288 | DEFUN (no_ripng_route, | |
2289 | no_ripng_route_cmd, | |
2290 | "no route IPV6ADDR", | |
2291 | NO_STR | |
2292 | "Static route setup\n" | |
2293 | "Delete static RIPng route announcement\n") | |
2294 | { | |
ab34a28a | 2295 | int idx_ipv6addr = 2; |
718e3744 | 2296 | int ret; |
2297 | struct prefix_ipv6 p; | |
2298 | struct route_node *rp; | |
2299 | ||
ab34a28a | 2300 | ret = str2prefix_ipv6 (argv[idx_ipv6addr]->arg, (struct prefix_ipv6 *)&p); |
718e3744 | 2301 | if (ret <= 0) |
2302 | { | |
2303 | vty_out (vty, "Malformed address%s", VTY_NEWLINE); | |
2304 | return CMD_WARNING; | |
2305 | } | |
2306 | apply_mask_ipv6 (&p); | |
2307 | ||
2308 | rp = route_node_lookup (ripng->route, (struct prefix *) &p); | |
2309 | if (! rp) | |
2310 | { | |
2311 | vty_out (vty, "Can't find static route.%s", VTY_NEWLINE); | |
2312 | return CMD_WARNING; | |
2313 | } | |
2314 | ||
2315 | ripng_redistribute_delete (ZEBRA_ROUTE_RIPNG, RIPNG_ROUTE_STATIC, &p, 0); | |
2316 | route_unlock_node (rp); | |
2317 | ||
2318 | rp->info = NULL; | |
2319 | route_unlock_node (rp); | |
2320 | ||
2321 | return CMD_SUCCESS; | |
2322 | } | |
2323 | ||
2324 | DEFUN (ripng_aggregate_address, | |
2325 | ripng_aggregate_address_cmd, | |
2326 | "aggregate-address X:X::X:X/M", | |
2327 | "Set aggregate RIPng route announcement\n" | |
2328 | "Aggregate network\n") | |
2329 | { | |
ab34a28a | 2330 | int idx_ipv6_prefixlen = 1; |
718e3744 | 2331 | int ret; |
2332 | struct prefix p; | |
2333 | struct route_node *node; | |
2334 | ||
ab34a28a | 2335 | ret = str2prefix_ipv6 (argv[idx_ipv6_prefixlen]->arg, (struct prefix_ipv6 *)&p); |
718e3744 | 2336 | if (ret <= 0) |
2337 | { | |
2338 | vty_out (vty, "Malformed address%s", VTY_NEWLINE); | |
2339 | return CMD_WARNING; | |
2340 | } | |
2341 | ||
2342 | /* Check aggregate alredy exist or not. */ | |
2343 | node = route_node_get (ripng->aggregate, &p); | |
2344 | if (node->info) | |
2345 | { | |
2346 | vty_out (vty, "There is already same aggregate route.%s", VTY_NEWLINE); | |
2347 | route_unlock_node (node); | |
2348 | return CMD_WARNING; | |
2349 | } | |
2350 | node->info = (void *)1; | |
2351 | ||
2352 | ripng_aggregate_add (&p); | |
2353 | ||
2354 | return CMD_SUCCESS; | |
2355 | } | |
2356 | ||
2357 | DEFUN (no_ripng_aggregate_address, | |
2358 | no_ripng_aggregate_address_cmd, | |
2359 | "no aggregate-address X:X::X:X/M", | |
2360 | NO_STR | |
2361 | "Delete aggregate RIPng route announcement\n" | |
2362 | "Aggregate network") | |
2363 | { | |
ab34a28a | 2364 | int idx_ipv6_prefixlen = 2; |
718e3744 | 2365 | int ret; |
2366 | struct prefix p; | |
2367 | struct route_node *rn; | |
2368 | ||
ab34a28a | 2369 | ret = str2prefix_ipv6 (argv[idx_ipv6_prefixlen]->arg, (struct prefix_ipv6 *) &p); |
718e3744 | 2370 | if (ret <= 0) |
2371 | { | |
2372 | vty_out (vty, "Malformed address%s", VTY_NEWLINE); | |
2373 | return CMD_WARNING; | |
2374 | } | |
2375 | ||
2376 | rn = route_node_lookup (ripng->aggregate, &p); | |
2377 | if (! rn) | |
2378 | { | |
2379 | vty_out (vty, "Can't find aggregate route.%s", VTY_NEWLINE); | |
2380 | return CMD_WARNING; | |
2381 | } | |
2382 | route_unlock_node (rn); | |
2383 | rn->info = NULL; | |
2384 | route_unlock_node (rn); | |
2385 | ||
2386 | ripng_aggregate_delete (&p); | |
2387 | ||
2388 | return CMD_SUCCESS; | |
2389 | } | |
2390 | ||
2391 | DEFUN (ripng_default_metric, | |
2392 | ripng_default_metric_cmd, | |
6147e2c6 | 2393 | "default-metric (1-16)", |
718e3744 | 2394 | "Set a metric of redistribute routes\n" |
2395 | "Default metric\n") | |
2396 | { | |
ab34a28a | 2397 | int idx_number = 1; |
718e3744 | 2398 | if (ripng) |
2399 | { | |
ab34a28a | 2400 | ripng->default_metric = atoi (argv[idx_number]->arg); |
718e3744 | 2401 | } |
2402 | return CMD_SUCCESS; | |
2403 | } | |
2404 | ||
2405 | DEFUN (no_ripng_default_metric, | |
2406 | no_ripng_default_metric_cmd, | |
55c727dd | 2407 | "no default-metric [(1-16)]", |
718e3744 | 2408 | NO_STR |
2409 | "Set a metric of redistribute routes\n" | |
2410 | "Default metric\n") | |
2411 | { | |
2412 | if (ripng) | |
2413 | { | |
2414 | ripng->default_metric = RIPNG_DEFAULT_METRIC_DEFAULT; | |
2415 | } | |
2416 | return CMD_SUCCESS; | |
2417 | } | |
2418 | ||
718e3744 | 2419 | |
2420 | #if 0 | |
2421 | /* RIPng update timer setup. */ | |
2422 | DEFUN (ripng_update_timer, | |
2423 | ripng_update_timer_cmd, | |
2424 | "update-timer SECOND", | |
2425 | "Set RIPng update timer in seconds\n" | |
2426 | "Seconds\n") | |
2427 | { | |
2428 | unsigned long update; | |
2429 | char *endptr = NULL; | |
2430 | ||
2431 | update = strtoul (argv[0], &endptr, 10); | |
2432 | if (update == ULONG_MAX || *endptr != '\0') | |
2433 | { | |
2434 | vty_out (vty, "update timer value error%s", VTY_NEWLINE); | |
2435 | return CMD_WARNING; | |
2436 | } | |
2437 | ||
2438 | ripng->update_time = update; | |
2439 | ||
2440 | ripng_event (RIPNG_UPDATE_EVENT, 0); | |
2441 | return CMD_SUCCESS; | |
2442 | } | |
2443 | ||
2444 | DEFUN (no_ripng_update_timer, | |
2445 | no_ripng_update_timer_cmd, | |
2446 | "no update-timer SECOND", | |
2447 | NO_STR | |
2448 | "Unset RIPng update timer in seconds\n" | |
2449 | "Seconds\n") | |
2450 | { | |
2451 | ripng->update_time = RIPNG_UPDATE_TIMER_DEFAULT; | |
2452 | ripng_event (RIPNG_UPDATE_EVENT, 0); | |
2453 | return CMD_SUCCESS; | |
2454 | } | |
2455 | ||
2456 | /* RIPng timeout timer setup. */ | |
2457 | DEFUN (ripng_timeout_timer, | |
2458 | ripng_timeout_timer_cmd, | |
2459 | "timeout-timer SECOND", | |
2460 | "Set RIPng timeout timer in seconds\n" | |
2461 | "Seconds\n") | |
2462 | { | |
2463 | unsigned long timeout; | |
2464 | char *endptr = NULL; | |
2465 | ||
2466 | timeout = strtoul (argv[0], &endptr, 10); | |
2467 | if (timeout == ULONG_MAX || *endptr != '\0') | |
2468 | { | |
2469 | vty_out (vty, "timeout timer value error%s", VTY_NEWLINE); | |
2470 | return CMD_WARNING; | |
2471 | } | |
2472 | ||
2473 | ripng->timeout_time = timeout; | |
2474 | ||
2475 | return CMD_SUCCESS; | |
2476 | } | |
2477 | ||
2478 | DEFUN (no_ripng_timeout_timer, | |
2479 | no_ripng_timeout_timer_cmd, | |
2480 | "no timeout-timer SECOND", | |
2481 | NO_STR | |
2482 | "Unset RIPng timeout timer in seconds\n" | |
2483 | "Seconds\n") | |
2484 | { | |
2485 | ripng->timeout_time = RIPNG_TIMEOUT_TIMER_DEFAULT; | |
2486 | return CMD_SUCCESS; | |
2487 | } | |
2488 | ||
2489 | /* RIPng garbage timer setup. */ | |
2490 | DEFUN (ripng_garbage_timer, | |
2491 | ripng_garbage_timer_cmd, | |
2492 | "garbage-timer SECOND", | |
2493 | "Set RIPng garbage timer in seconds\n" | |
2494 | "Seconds\n") | |
2495 | { | |
2496 | unsigned long garbage; | |
2497 | char *endptr = NULL; | |
2498 | ||
2499 | garbage = strtoul (argv[0], &endptr, 10); | |
2500 | if (garbage == ULONG_MAX || *endptr != '\0') | |
2501 | { | |
2502 | vty_out (vty, "garbage timer value error%s", VTY_NEWLINE); | |
2503 | return CMD_WARNING; | |
2504 | } | |
2505 | ||
2506 | ripng->garbage_time = garbage; | |
2507 | ||
2508 | return CMD_SUCCESS; | |
2509 | } | |
2510 | ||
2511 | DEFUN (no_ripng_garbage_timer, | |
2512 | no_ripng_garbage_timer_cmd, | |
2513 | "no garbage-timer SECOND", | |
2514 | NO_STR | |
2515 | "Unset RIPng garbage timer in seconds\n" | |
2516 | "Seconds\n") | |
2517 | { | |
2518 | ripng->garbage_time = RIPNG_GARBAGE_TIMER_DEFAULT; | |
2519 | return CMD_SUCCESS; | |
2520 | } | |
2521 | #endif /* 0 */ | |
2522 | ||
2523 | DEFUN (ripng_timers, | |
2524 | ripng_timers_cmd, | |
6147e2c6 | 2525 | "timers basic (0-65535) (0-65535) (0-65535)", |
718e3744 | 2526 | "RIPng timers setup\n" |
2527 | "Basic timer\n" | |
2528 | "Routing table update timer value in second. Default is 30.\n" | |
2529 | "Routing information timeout timer. Default is 180.\n" | |
2530 | "Garbage collection timer. Default is 120.\n") | |
2531 | { | |
ab34a28a DW |
2532 | int idx_number = 2; |
2533 | int idx_number_2 = 3; | |
2534 | int idx_number_3 = 4; | |
718e3744 | 2535 | unsigned long update; |
2536 | unsigned long timeout; | |
2537 | unsigned long garbage; | |
718e3744 | 2538 | |
ab34a28a DW |
2539 | VTY_GET_INTEGER_RANGE("update timer", update, argv[idx_number]->arg, 0, 65535); |
2540 | VTY_GET_INTEGER_RANGE("timeout timer", timeout, argv[idx_number_2]->arg, 0, 65535); | |
2541 | VTY_GET_INTEGER_RANGE("garbage timer", garbage, argv[idx_number_3]->arg, 0, 65535); | |
718e3744 | 2542 | |
2543 | /* Set each timer value. */ | |
2544 | ripng->update_time = update; | |
2545 | ripng->timeout_time = timeout; | |
2546 | ripng->garbage_time = garbage; | |
2547 | ||
2548 | /* Reset update timer thread. */ | |
2549 | ripng_event (RIPNG_UPDATE_EVENT, 0); | |
2550 | ||
2551 | return CMD_SUCCESS; | |
2552 | } | |
2553 | ||
2554 | DEFUN (no_ripng_timers, | |
2555 | no_ripng_timers_cmd, | |
d04c479d | 2556 | "no timers basic [(0-65535) (0-65535) (0-65535)]", |
718e3744 | 2557 | NO_STR |
2558 | "RIPng timers setup\n" | |
c8952fc1 QY |
2559 | "Basic timer\n" |
2560 | "Routing table update timer value in second. Default is 30.\n" | |
2561 | "Routing information timeout timer. Default is 180.\n" | |
2562 | "Garbage collection timer. Default is 120.\n") | |
718e3744 | 2563 | { |
2564 | /* Set each timer value to the default. */ | |
2565 | ripng->update_time = RIPNG_UPDATE_TIMER_DEFAULT; | |
2566 | ripng->timeout_time = RIPNG_TIMEOUT_TIMER_DEFAULT; | |
2567 | ripng->garbage_time = RIPNG_GARBAGE_TIMER_DEFAULT; | |
2568 | ||
2569 | /* Reset update timer thread. */ | |
2570 | ripng_event (RIPNG_UPDATE_EVENT, 0); | |
2571 | ||
2572 | return CMD_SUCCESS; | |
2573 | } | |
2574 | ||
d7d73ffc | 2575 | #if 0 |
dd4f9f99 DW |
2576 | DEFUN (show_ipv6_protocols, |
2577 | show_ipv6_protocols_cmd, | |
718e3744 | 2578 | "show ipv6 protocols", |
2579 | SHOW_STR | |
8d0f15fd | 2580 | IPV6_STR |
718e3744 | 2581 | "Routing protocol information") |
2582 | { | |
2583 | if (! ripng) | |
2584 | return CMD_SUCCESS; | |
2585 | ||
2586 | vty_out (vty, "Routing Protocol is \"ripng\"%s", VTY_NEWLINE); | |
2587 | ||
2588 | vty_out (vty, "Sending updates every %ld seconds, next due in %d seconds%s", | |
2589 | ripng->update_time, 0, | |
2590 | VTY_NEWLINE); | |
2591 | ||
2592 | vty_out (vty, "Timerout after %ld seconds, garbage correct %ld%s", | |
2593 | ripng->timeout_time, | |
2594 | ripng->garbage_time, | |
2595 | VTY_NEWLINE); | |
2596 | ||
2597 | vty_out (vty, "Outgoing update filter list for all interfaces is not set"); | |
2598 | vty_out (vty, "Incoming update filter list for all interfaces is not set"); | |
2599 | ||
2600 | return CMD_SUCCESS; | |
2601 | } | |
d7d73ffc | 2602 | #endif |
718e3744 | 2603 | |
2604 | /* Please be carefull to use this command. */ | |
a2c62831 | 2605 | DEFUN (ripng_default_information_originate, |
2606 | ripng_default_information_originate_cmd, | |
718e3744 | 2607 | "default-information originate", |
2608 | "Default route information\n" | |
2609 | "Distribute default route\n") | |
2610 | { | |
2611 | struct prefix_ipv6 p; | |
2612 | ||
a94434b6 | 2613 | if (! ripng ->default_information) { |
2614 | ripng->default_information = 1; | |
718e3744 | 2615 | |
a94434b6 | 2616 | str2prefix_ipv6 ("::/0", &p); |
1796a585 | 2617 | ripng_redistribute_add (ZEBRA_ROUTE_RIPNG, RIPNG_ROUTE_DEFAULT, &p, 0, NULL, 0); |
a94434b6 | 2618 | } |
718e3744 | 2619 | |
2620 | return CMD_SUCCESS; | |
2621 | } | |
2622 | ||
a2c62831 | 2623 | DEFUN (no_ripng_default_information_originate, |
2624 | no_ripng_default_information_originate_cmd, | |
718e3744 | 2625 | "no default-information originate", |
2626 | NO_STR | |
2627 | "Default route information\n" | |
2628 | "Distribute default route\n") | |
2629 | { | |
2630 | struct prefix_ipv6 p; | |
2631 | ||
a94434b6 | 2632 | if (ripng->default_information) { |
2633 | ripng->default_information = 0; | |
718e3744 | 2634 | |
a94434b6 | 2635 | str2prefix_ipv6 ("::/0", &p); |
2636 | ripng_redistribute_delete (ZEBRA_ROUTE_RIPNG, RIPNG_ROUTE_DEFAULT, &p, 0); | |
2637 | } | |
718e3744 | 2638 | |
2639 | return CMD_SUCCESS; | |
2640 | } | |
2641 | ||
fac76f9c FL |
2642 | /* Update ECMP routes to zebra when ECMP is disabled. */ |
2643 | static void | |
2644 | ripng_ecmp_disable (void) | |
2645 | { | |
2646 | struct route_node *rp; | |
2647 | struct ripng_info *rinfo, *tmp_rinfo; | |
2648 | struct list *list; | |
2649 | struct listnode *node, *nextnode; | |
2650 | ||
2651 | if (!ripng) | |
2652 | return; | |
2653 | ||
2654 | for (rp = route_top (ripng->table); rp; rp = route_next (rp)) | |
2655 | if ((list = rp->info) != NULL && listcount (list) > 1) | |
2656 | { | |
2657 | rinfo = listgetdata (listhead (list)); | |
2658 | if (!ripng_route_rte (rinfo)) | |
2659 | continue; | |
2660 | ||
2661 | /* Drop all other entries, except the first one. */ | |
2662 | for (ALL_LIST_ELEMENTS (list, node, nextnode, tmp_rinfo)) | |
2663 | if (tmp_rinfo != rinfo) | |
2664 | { | |
2665 | RIPNG_TIMER_OFF (tmp_rinfo->t_timeout); | |
2666 | RIPNG_TIMER_OFF (tmp_rinfo->t_garbage_collect); | |
2667 | list_delete_node (list, node); | |
2668 | ripng_info_free (tmp_rinfo); | |
2669 | } | |
2670 | ||
2671 | /* Update zebra. */ | |
2672 | ripng_zebra_ipv6_add (rp); | |
2673 | ||
2674 | /* Set the route change flag. */ | |
2675 | SET_FLAG (rinfo->flags, RIPNG_RTF_CHANGED); | |
2676 | ||
2677 | /* Signal the output process to trigger an update. */ | |
2678 | ripng_event (RIPNG_TRIGGERED_UPDATE, 0); | |
2679 | } | |
2680 | } | |
2681 | ||
2682 | DEFUN (ripng_allow_ecmp, | |
2683 | ripng_allow_ecmp_cmd, | |
2684 | "allow-ecmp", | |
2685 | "Allow Equal Cost MultiPath\n") | |
2686 | { | |
2687 | if (ripng->ecmp) | |
2688 | { | |
2689 | vty_out (vty, "ECMP is already enabled.%s", VTY_NEWLINE); | |
2690 | return CMD_WARNING; | |
2691 | } | |
2692 | ||
2693 | ripng->ecmp = 1; | |
2694 | zlog_info ("ECMP is enabled."); | |
2695 | return CMD_SUCCESS; | |
2696 | } | |
2697 | ||
2698 | DEFUN (no_ripng_allow_ecmp, | |
2699 | no_ripng_allow_ecmp_cmd, | |
2700 | "no allow-ecmp", | |
2701 | NO_STR | |
2702 | "Allow Equal Cost MultiPath\n") | |
2703 | { | |
2704 | if (!ripng->ecmp) | |
2705 | { | |
2706 | vty_out (vty, "ECMP is already disabled.%s", VTY_NEWLINE); | |
2707 | return CMD_WARNING; | |
2708 | } | |
2709 | ||
2710 | ripng->ecmp = 0; | |
2711 | zlog_info ("ECMP is disabled."); | |
2712 | ripng_ecmp_disable (); | |
2713 | return CMD_SUCCESS; | |
2714 | } | |
2715 | ||
718e3744 | 2716 | /* RIPng configuration write function. */ |
6ac29a51 | 2717 | static int |
718e3744 | 2718 | ripng_config_write (struct vty *vty) |
2719 | { | |
a94434b6 | 2720 | int ripng_network_write (struct vty *, int); |
2721 | void ripng_redistribute_write (struct vty *, int); | |
718e3744 | 2722 | int write = 0; |
2723 | struct route_node *rp; | |
2724 | ||
2725 | if (ripng) | |
2726 | { | |
2727 | ||
2728 | /* RIPng router. */ | |
2729 | vty_out (vty, "router ripng%s", VTY_NEWLINE); | |
2730 | ||
2731 | if (ripng->default_information) | |
2732 | vty_out (vty, " default-information originate%s", VTY_NEWLINE); | |
2733 | ||
a94434b6 | 2734 | ripng_network_write (vty, 1); |
718e3744 | 2735 | |
2736 | /* RIPng default metric configuration */ | |
2737 | if (ripng->default_metric != RIPNG_DEFAULT_METRIC_DEFAULT) | |
2738 | vty_out (vty, " default-metric %d%s", | |
2739 | ripng->default_metric, VTY_NEWLINE); | |
2740 | ||
a94434b6 | 2741 | ripng_redistribute_write (vty, 1); |
2742 | ||
2743 | /* RIP offset-list configuration. */ | |
2744 | config_write_ripng_offset_list (vty); | |
718e3744 | 2745 | |
2746 | /* RIPng aggregate routes. */ | |
2747 | for (rp = route_top (ripng->aggregate); rp; rp = route_next (rp)) | |
2748 | if (rp->info != NULL) | |
2749 | vty_out (vty, " aggregate-address %s/%d%s", | |
3a2ce6a1 | 2750 | inet6_ntoa (rp->p.u.prefix6), |
718e3744 | 2751 | rp->p.prefixlen, |
2752 | ||
2753 | VTY_NEWLINE); | |
2754 | ||
fac76f9c FL |
2755 | /* ECMP configuration. */ |
2756 | if (ripng->ecmp) | |
2757 | vty_out (vty, " allow-ecmp%s", VTY_NEWLINE); | |
2758 | ||
718e3744 | 2759 | /* RIPng static routes. */ |
2760 | for (rp = route_top (ripng->route); rp; rp = route_next (rp)) | |
2761 | if (rp->info != NULL) | |
3a2ce6a1 | 2762 | vty_out (vty, " route %s/%d%s", inet6_ntoa (rp->p.u.prefix6), |
718e3744 | 2763 | rp->p.prefixlen, |
2764 | VTY_NEWLINE); | |
2765 | ||
2766 | /* RIPng timers configuration. */ | |
2767 | if (ripng->update_time != RIPNG_UPDATE_TIMER_DEFAULT || | |
2768 | ripng->timeout_time != RIPNG_TIMEOUT_TIMER_DEFAULT || | |
2769 | ripng->garbage_time != RIPNG_GARBAGE_TIMER_DEFAULT) | |
2770 | { | |
2771 | vty_out (vty, " timers basic %ld %ld %ld%s", | |
2772 | ripng->update_time, | |
2773 | ripng->timeout_time, | |
2774 | ripng->garbage_time, | |
2775 | VTY_NEWLINE); | |
2776 | } | |
2777 | #if 0 | |
2778 | if (ripng->update_time != RIPNG_UPDATE_TIMER_DEFAULT) | |
2779 | vty_out (vty, " update-timer %d%s", ripng->update_time, | |
2780 | VTY_NEWLINE); | |
2781 | if (ripng->timeout_time != RIPNG_TIMEOUT_TIMER_DEFAULT) | |
2782 | vty_out (vty, " timeout-timer %d%s", ripng->timeout_time, | |
2783 | VTY_NEWLINE); | |
2784 | if (ripng->garbage_time != RIPNG_GARBAGE_TIMER_DEFAULT) | |
2785 | vty_out (vty, " garbage-timer %d%s", ripng->garbage_time, | |
2786 | VTY_NEWLINE); | |
2787 | #endif /* 0 */ | |
2788 | ||
2789 | write += config_write_distribute (vty); | |
2790 | ||
2791 | write += config_write_if_rmap (vty); | |
2792 | ||
2793 | write++; | |
2794 | } | |
2795 | return write; | |
2796 | } | |
2797 | ||
2798 | /* RIPng node structure. */ | |
7fc626de | 2799 | static struct cmd_node cmd_ripng_node = |
718e3744 | 2800 | { |
2801 | RIPNG_NODE, | |
2802 | "%s(config-router)# ", | |
2803 | 1, | |
2804 | }; | |
2805 | ||
6ac29a51 | 2806 | static void |
718e3744 | 2807 | ripng_distribute_update (struct distribute *dist) |
2808 | { | |
2809 | struct interface *ifp; | |
2810 | struct ripng_interface *ri; | |
2811 | struct access_list *alist; | |
2812 | struct prefix_list *plist; | |
2813 | ||
2814 | if (! dist->ifname) | |
2815 | return; | |
2816 | ||
1306c09a | 2817 | ifp = if_lookup_by_name (dist->ifname, VRF_DEFAULT); |
718e3744 | 2818 | if (ifp == NULL) |
2819 | return; | |
2820 | ||
2821 | ri = ifp->info; | |
2822 | ||
fb23cf4a | 2823 | if (dist->list[DISTRIBUTE_V6_IN]) |
718e3744 | 2824 | { |
fb23cf4a | 2825 | alist = access_list_lookup (AFI_IP6, dist->list[DISTRIBUTE_V6_IN]); |
718e3744 | 2826 | if (alist) |
2827 | ri->list[RIPNG_FILTER_IN] = alist; | |
2828 | else | |
2829 | ri->list[RIPNG_FILTER_IN] = NULL; | |
2830 | } | |
2831 | else | |
2832 | ri->list[RIPNG_FILTER_IN] = NULL; | |
2833 | ||
fb23cf4a | 2834 | if (dist->list[DISTRIBUTE_V6_OUT]) |
718e3744 | 2835 | { |
fb23cf4a | 2836 | alist = access_list_lookup (AFI_IP6, dist->list[DISTRIBUTE_V6_OUT]); |
718e3744 | 2837 | if (alist) |
2838 | ri->list[RIPNG_FILTER_OUT] = alist; | |
2839 | else | |
2840 | ri->list[RIPNG_FILTER_OUT] = NULL; | |
2841 | } | |
2842 | else | |
2843 | ri->list[RIPNG_FILTER_OUT] = NULL; | |
2844 | ||
fb23cf4a | 2845 | if (dist->prefix[DISTRIBUTE_V6_IN]) |
718e3744 | 2846 | { |
fb23cf4a | 2847 | plist = prefix_list_lookup (AFI_IP6, dist->prefix[DISTRIBUTE_V6_IN]); |
718e3744 | 2848 | if (plist) |
2849 | ri->prefix[RIPNG_FILTER_IN] = plist; | |
2850 | else | |
2851 | ri->prefix[RIPNG_FILTER_IN] = NULL; | |
2852 | } | |
2853 | else | |
2854 | ri->prefix[RIPNG_FILTER_IN] = NULL; | |
2855 | ||
fb23cf4a | 2856 | if (dist->prefix[DISTRIBUTE_V6_OUT]) |
718e3744 | 2857 | { |
fb23cf4a | 2858 | plist = prefix_list_lookup (AFI_IP6, dist->prefix[DISTRIBUTE_V6_OUT]); |
718e3744 | 2859 | if (plist) |
2860 | ri->prefix[RIPNG_FILTER_OUT] = plist; | |
2861 | else | |
2862 | ri->prefix[RIPNG_FILTER_OUT] = NULL; | |
2863 | } | |
2864 | else | |
2865 | ri->prefix[RIPNG_FILTER_OUT] = NULL; | |
2866 | } | |
a94434b6 | 2867 | |
718e3744 | 2868 | void |
2869 | ripng_distribute_update_interface (struct interface *ifp) | |
2870 | { | |
2871 | struct distribute *dist; | |
2872 | ||
2873 | dist = distribute_lookup (ifp->name); | |
2874 | if (dist) | |
2875 | ripng_distribute_update (dist); | |
2876 | } | |
2877 | ||
2878 | /* Update all interface's distribute list. */ | |
6ac29a51 | 2879 | static void |
c9e52be3 | 2880 | ripng_distribute_update_all (struct prefix_list *notused) |
718e3744 | 2881 | { |
2882 | struct interface *ifp; | |
52dc7ee6 | 2883 | struct listnode *node; |
718e3744 | 2884 | |
b2d7c082 | 2885 | for (ALL_LIST_ELEMENTS_RO (vrf_iflist (VRF_DEFAULT), node, ifp)) |
1eb8ef25 | 2886 | ripng_distribute_update_interface (ifp); |
718e3744 | 2887 | } |
c9e52be3 | 2888 | |
6ac29a51 | 2889 | static void |
c9e52be3 | 2890 | ripng_distribute_update_all_wrapper (struct access_list *notused) |
2891 | { | |
2892 | ripng_distribute_update_all(NULL); | |
2893 | } | |
6b0655a2 | 2894 | |
a94434b6 | 2895 | /* delete all the added ripng routes. */ |
2896 | void | |
2897 | ripng_clean() | |
2898 | { | |
2899 | int i; | |
2900 | struct route_node *rp; | |
2901 | struct ripng_info *rinfo; | |
c880b636 FL |
2902 | struct ripng_aggregate *aggregate; |
2903 | struct list *list = NULL; | |
2904 | struct listnode *listnode = NULL; | |
a94434b6 | 2905 | |
2906 | if (ripng) { | |
2907 | /* Clear RIPng routes */ | |
c880b636 FL |
2908 | for (rp = route_top (ripng->table); rp; rp = route_next (rp)) |
2909 | { | |
2910 | if ((list = rp->info) != NULL) | |
2911 | { | |
2912 | rinfo = listgetdata (listhead (list)); | |
2913 | if (ripng_route_rte (rinfo)) | |
2914 | ripng_zebra_ipv6_delete (rp); | |
2915 | ||
2916 | for (ALL_LIST_ELEMENTS_RO (list, listnode, rinfo)) | |
2917 | { | |
2918 | RIPNG_TIMER_OFF (rinfo->t_timeout); | |
2919 | RIPNG_TIMER_OFF (rinfo->t_garbage_collect); | |
2920 | ripng_info_free (rinfo); | |
2921 | } | |
2922 | list_delete (list); | |
2923 | rp->info = NULL; | |
2924 | route_unlock_node (rp); | |
2925 | } | |
2926 | ||
2927 | if ((aggregate = rp->aggregate) != NULL) | |
2928 | { | |
2929 | ripng_aggregate_free (aggregate); | |
2930 | rp->aggregate = NULL; | |
2931 | route_unlock_node (rp); | |
2932 | } | |
a94434b6 | 2933 | } |
2934 | ||
2935 | /* Cancel the RIPng timers */ | |
2936 | RIPNG_TIMER_OFF (ripng->t_update); | |
2937 | RIPNG_TIMER_OFF (ripng->t_triggered_update); | |
2938 | RIPNG_TIMER_OFF (ripng->t_triggered_interval); | |
2939 | ||
2940 | /* Cancel the read thread */ | |
2941 | if (ripng->t_read) { | |
2942 | thread_cancel (ripng->t_read); | |
2943 | ripng->t_read = NULL; | |
2944 | } | |
2945 | ||
2946 | /* Close the RIPng socket */ | |
2947 | if (ripng->sock >= 0) { | |
2948 | close(ripng->sock); | |
2949 | ripng->sock = -1; | |
2950 | } | |
2951 | ||
2952 | /* Static RIPng route configuration. */ | |
2953 | for (rp = route_top (ripng->route); rp; rp = route_next (rp)) | |
2954 | if (rp->info) { | |
2955 | rp->info = NULL; | |
2956 | route_unlock_node (rp); | |
2957 | } | |
2958 | ||
2959 | /* RIPng aggregated prefixes */ | |
2960 | for (rp = route_top (ripng->aggregate); rp; rp = route_next (rp)) | |
2961 | if (rp->info) { | |
2962 | rp->info = NULL; | |
2963 | route_unlock_node (rp); | |
2964 | } | |
2965 | ||
2966 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
2967 | if (ripng->route_map[i].name) | |
2968 | free (ripng->route_map[i].name); | |
2969 | ||
2970 | XFREE (MTYPE_ROUTE_TABLE, ripng->table); | |
2971 | XFREE (MTYPE_ROUTE_TABLE, ripng->route); | |
2972 | XFREE (MTYPE_ROUTE_TABLE, ripng->aggregate); | |
2973 | ||
2974 | XFREE (MTYPE_RIPNG, ripng); | |
2975 | ripng = NULL; | |
2976 | } /* if (ripng) */ | |
2977 | ||
2978 | ripng_clean_network(); | |
2979 | ripng_passive_interface_clean (); | |
2980 | ripng_offset_clean (); | |
2981 | ripng_interface_clean (); | |
2982 | ripng_redistribute_clean (); | |
2983 | } | |
2984 | ||
2985 | /* Reset all values to the default settings. */ | |
2986 | void | |
2987 | ripng_reset () | |
2988 | { | |
2989 | /* Call ripd related reset functions. */ | |
2990 | ripng_debug_reset (); | |
2991 | ripng_route_map_reset (); | |
2992 | ||
2993 | /* Call library reset functions. */ | |
2994 | vty_reset (); | |
2995 | access_list_reset (); | |
2996 | prefix_list_reset (); | |
2997 | ||
2998 | distribute_list_reset (); | |
2999 | ||
3000 | ripng_interface_reset (); | |
3001 | ||
3002 | ripng_zclient_reset (); | |
3003 | } | |
718e3744 | 3004 | |
6ac29a51 | 3005 | static void |
718e3744 | 3006 | ripng_if_rmap_update (struct if_rmap *if_rmap) |
3007 | { | |
3008 | struct interface *ifp; | |
3009 | struct ripng_interface *ri; | |
3010 | struct route_map *rmap; | |
3011 | ||
1306c09a | 3012 | ifp = if_lookup_by_name (if_rmap->ifname, VRF_DEFAULT); |
718e3744 | 3013 | if (ifp == NULL) |
3014 | return; | |
3015 | ||
3016 | ri = ifp->info; | |
3017 | ||
3018 | if (if_rmap->routemap[IF_RMAP_IN]) | |
3019 | { | |
3020 | rmap = route_map_lookup_by_name (if_rmap->routemap[IF_RMAP_IN]); | |
3021 | if (rmap) | |
3022 | ri->routemap[IF_RMAP_IN] = rmap; | |
3023 | else | |
3024 | ri->routemap[IF_RMAP_IN] = NULL; | |
3025 | } | |
3026 | else | |
3027 | ri->routemap[RIPNG_FILTER_IN] = NULL; | |
3028 | ||
3029 | if (if_rmap->routemap[IF_RMAP_OUT]) | |
3030 | { | |
3031 | rmap = route_map_lookup_by_name (if_rmap->routemap[IF_RMAP_OUT]); | |
3032 | if (rmap) | |
3033 | ri->routemap[IF_RMAP_OUT] = rmap; | |
3034 | else | |
3035 | ri->routemap[IF_RMAP_OUT] = NULL; | |
3036 | } | |
3037 | else | |
3038 | ri->routemap[RIPNG_FILTER_OUT] = NULL; | |
3039 | } | |
3040 | ||
3041 | void | |
3042 | ripng_if_rmap_update_interface (struct interface *ifp) | |
3043 | { | |
3044 | struct if_rmap *if_rmap; | |
3045 | ||
3046 | if_rmap = if_rmap_lookup (ifp->name); | |
3047 | if (if_rmap) | |
3048 | ripng_if_rmap_update (if_rmap); | |
3049 | } | |
3050 | ||
6ac29a51 | 3051 | static void |
718e3744 | 3052 | ripng_routemap_update_redistribute (void) |
3053 | { | |
3054 | int i; | |
3055 | ||
3056 | if (ripng) | |
3057 | { | |
3058 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
3059 | { | |
3060 | if (ripng->route_map[i].name) | |
3061 | ripng->route_map[i].map = | |
3062 | route_map_lookup_by_name (ripng->route_map[i].name); | |
3063 | } | |
3064 | } | |
3065 | } | |
3066 | ||
6ac29a51 | 3067 | static void |
98b718a9 | 3068 | ripng_routemap_update (const char *unused) |
718e3744 | 3069 | { |
3070 | struct interface *ifp; | |
52dc7ee6 | 3071 | struct listnode *node; |
718e3744 | 3072 | |
b2d7c082 | 3073 | for (ALL_LIST_ELEMENTS_RO (vrf_iflist (VRF_DEFAULT), node, ifp)) |
1eb8ef25 | 3074 | ripng_if_rmap_update_interface (ifp); |
718e3744 | 3075 | |
3076 | ripng_routemap_update_redistribute (); | |
3077 | } | |
3078 | ||
3079 | /* Initialize ripng structure and set commands. */ | |
3080 | void | |
3081 | ripng_init () | |
3082 | { | |
718e3744 | 3083 | /* Install RIPNG_NODE. */ |
3084 | install_node (&cmd_ripng_node, ripng_config_write); | |
3085 | ||
3086 | /* Install ripng commands. */ | |
3087 | install_element (VIEW_NODE, &show_ipv6_ripng_cmd); | |
a94434b6 | 3088 | install_element (VIEW_NODE, &show_ipv6_ripng_status_cmd); |
718e3744 | 3089 | |
d7f966ab RW |
3090 | install_element (ENABLE_NODE, &clear_ipv6_rip_cmd); |
3091 | ||
718e3744 | 3092 | install_element (CONFIG_NODE, &router_ripng_cmd); |
a94434b6 | 3093 | install_element (CONFIG_NODE, &no_router_ripng_cmd); |
718e3744 | 3094 | |
3095 | install_default (RIPNG_NODE); | |
3096 | install_element (RIPNG_NODE, &ripng_route_cmd); | |
3097 | install_element (RIPNG_NODE, &no_ripng_route_cmd); | |
3098 | install_element (RIPNG_NODE, &ripng_aggregate_address_cmd); | |
3099 | install_element (RIPNG_NODE, &no_ripng_aggregate_address_cmd); | |
3100 | ||
3101 | install_element (RIPNG_NODE, &ripng_default_metric_cmd); | |
3102 | install_element (RIPNG_NODE, &no_ripng_default_metric_cmd); | |
718e3744 | 3103 | |
3104 | install_element (RIPNG_NODE, &ripng_timers_cmd); | |
3105 | install_element (RIPNG_NODE, &no_ripng_timers_cmd); | |
3106 | #if 0 | |
ee9216cf | 3107 | install_element (VIEW_NODE, &show_ipv6_protocols_cmd); |
718e3744 | 3108 | install_element (RIPNG_NODE, &ripng_update_timer_cmd); |
3109 | install_element (RIPNG_NODE, &no_ripng_update_timer_cmd); | |
3110 | install_element (RIPNG_NODE, &ripng_timeout_timer_cmd); | |
3111 | install_element (RIPNG_NODE, &no_ripng_timeout_timer_cmd); | |
3112 | install_element (RIPNG_NODE, &ripng_garbage_timer_cmd); | |
3113 | install_element (RIPNG_NODE, &no_ripng_garbage_timer_cmd); | |
3114 | #endif /* 0 */ | |
3115 | ||
a2c62831 | 3116 | install_element (RIPNG_NODE, &ripng_default_information_originate_cmd); |
3117 | install_element (RIPNG_NODE, &no_ripng_default_information_originate_cmd); | |
718e3744 | 3118 | |
fac76f9c FL |
3119 | install_element (RIPNG_NODE, &ripng_allow_ecmp_cmd); |
3120 | install_element (RIPNG_NODE, &no_ripng_allow_ecmp_cmd); | |
3121 | ||
718e3744 | 3122 | ripng_if_init (); |
3123 | ripng_debug_init (); | |
3124 | ||
3125 | /* Access list install. */ | |
3126 | access_list_init (); | |
c9e52be3 | 3127 | access_list_add_hook (ripng_distribute_update_all_wrapper); |
3128 | access_list_delete_hook (ripng_distribute_update_all_wrapper); | |
718e3744 | 3129 | |
3130 | /* Prefix list initialize.*/ | |
3131 | prefix_list_init (); | |
3132 | prefix_list_add_hook (ripng_distribute_update_all); | |
3133 | prefix_list_delete_hook (ripng_distribute_update_all); | |
3134 | ||
3135 | /* Distribute list install. */ | |
3136 | distribute_list_init (RIPNG_NODE); | |
3137 | distribute_list_add_hook (ripng_distribute_update); | |
3138 | distribute_list_delete_hook (ripng_distribute_update); | |
3139 | ||
3140 | /* Route-map for interface. */ | |
3141 | ripng_route_map_init (); | |
a94434b6 | 3142 | ripng_offset_init (); |
3143 | ||
718e3744 | 3144 | route_map_add_hook (ripng_routemap_update); |
3145 | route_map_delete_hook (ripng_routemap_update); | |
3146 | ||
0750d21f | 3147 | if_rmap_init (RIPNG_NODE); |
718e3744 | 3148 | if_rmap_hook_add (ripng_if_rmap_update); |
3149 | if_rmap_hook_delete (ripng_if_rmap_update); | |
3150 | } |