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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 | { | |
110 | zlog (NULL, LOG_ERR, "Can't make ripng socket"); | |
111 | return sock; | |
112 | } | |
113 | ||
114 | ret = setsockopt_so_recvbuf (sock, 8096); | |
115 | if (ret < 0) | |
116 | return ret; | |
117 | ret = setsockopt_ipv6_pktinfo (sock, 1); | |
118 | if (ret < 0) | |
119 | return ret; | |
6d0732c8 SH |
120 | #ifdef IPTOS_PREC_INTERNETCONTROL |
121 | ret = setsockopt_ipv6_tclass (sock, IPTOS_PREC_INTERNETCONTROL); | |
122 | if (ret < 0) | |
123 | return ret; | |
124 | #endif | |
718e3744 | 125 | ret = setsockopt_ipv6_multicast_hops (sock, 255); |
126 | if (ret < 0) | |
127 | return ret; | |
128 | ret = setsockopt_ipv6_multicast_loop (sock, 0); | |
129 | if (ret < 0) | |
130 | return ret; | |
131 | ret = setsockopt_ipv6_hoplimit (sock, 1); | |
132 | if (ret < 0) | |
133 | return ret; | |
134 | ||
135 | memset (&ripaddr, 0, sizeof (ripaddr)); | |
136 | ripaddr.sin6_family = AF_INET6; | |
137 | #ifdef SIN6_LEN | |
138 | ripaddr.sin6_len = sizeof (struct sockaddr_in6); | |
139 | #endif /* SIN6_LEN */ | |
140 | ripaddr.sin6_port = htons (RIPNG_PORT_DEFAULT); | |
141 | ||
27d47aa7 | 142 | if (ripngd_privs.change (ZPRIVS_RAISE)) |
143 | zlog_err ("ripng_make_socket: could not raise privs"); | |
144 | ||
718e3744 | 145 | ret = bind (sock, (struct sockaddr *) &ripaddr, sizeof (ripaddr)); |
146 | if (ret < 0) | |
27d47aa7 | 147 | { |
6099b3b5 | 148 | zlog (NULL, LOG_ERR, "Can't bind ripng socket: %s.", safe_strerror (errno)); |
27d47aa7 | 149 | if (ripngd_privs.change (ZPRIVS_LOWER)) |
150 | zlog_err ("ripng_make_socket: could not lower privs"); | |
151 | return ret; | |
152 | } | |
153 | if (ripngd_privs.change (ZPRIVS_LOWER)) | |
154 | zlog_err ("ripng_make_socket: could not lower privs"); | |
718e3744 | 155 | return sock; |
156 | } | |
157 | ||
158 | /* Send RIPng packet. */ | |
159 | int | |
160 | ripng_send_packet (caddr_t buf, int bufsize, struct sockaddr_in6 *to, | |
161 | struct interface *ifp) | |
162 | { | |
163 | int ret; | |
164 | struct msghdr msg; | |
165 | struct iovec iov; | |
166 | struct cmsghdr *cmsgptr; | |
167 | char adata [256]; | |
168 | struct in6_pktinfo *pkt; | |
169 | struct sockaddr_in6 addr; | |
170 | ||
a94434b6 | 171 | if (IS_RIPNG_DEBUG_SEND) { |
172 | if (to) | |
3a2ce6a1 | 173 | zlog_debug ("send to %s", inet6_ntoa (to->sin6_addr)); |
c6106812 | 174 | zlog_debug (" send interface %s", ifp->name); |
175 | zlog_debug (" send packet size %d", bufsize); | |
a94434b6 | 176 | } |
718e3744 | 177 | |
178 | memset (&addr, 0, sizeof (struct sockaddr_in6)); | |
179 | addr.sin6_family = AF_INET6; | |
180 | #ifdef SIN6_LEN | |
181 | addr.sin6_len = sizeof (struct sockaddr_in6); | |
182 | #endif /* SIN6_LEN */ | |
183 | addr.sin6_flowinfo = htonl (RIPNG_PRIORITY_DEFAULT); | |
184 | ||
185 | /* When destination is specified. */ | |
186 | if (to != NULL) | |
187 | { | |
188 | addr.sin6_addr = to->sin6_addr; | |
189 | addr.sin6_port = to->sin6_port; | |
190 | } | |
191 | else | |
192 | { | |
193 | inet_pton(AF_INET6, RIPNG_GROUP, &addr.sin6_addr); | |
194 | addr.sin6_port = htons (RIPNG_PORT_DEFAULT); | |
195 | } | |
196 | ||
197 | msg.msg_name = (void *) &addr; | |
198 | msg.msg_namelen = sizeof (struct sockaddr_in6); | |
199 | msg.msg_iov = &iov; | |
200 | msg.msg_iovlen = 1; | |
201 | msg.msg_control = (void *) adata; | |
202 | msg.msg_controllen = CMSG_SPACE(sizeof(struct in6_pktinfo)); | |
203 | ||
204 | iov.iov_base = buf; | |
205 | iov.iov_len = bufsize; | |
206 | ||
207 | cmsgptr = (struct cmsghdr *)adata; | |
208 | cmsgptr->cmsg_len = CMSG_LEN(sizeof (struct in6_pktinfo)); | |
209 | cmsgptr->cmsg_level = IPPROTO_IPV6; | |
210 | cmsgptr->cmsg_type = IPV6_PKTINFO; | |
211 | ||
212 | pkt = (struct in6_pktinfo *) CMSG_DATA (cmsgptr); | |
213 | memset (&pkt->ipi6_addr, 0, sizeof (struct in6_addr)); | |
214 | pkt->ipi6_ifindex = ifp->ifindex; | |
215 | ||
216 | ret = sendmsg (ripng->sock, &msg, 0); | |
217 | ||
a94434b6 | 218 | if (ret < 0) { |
219 | if (to) | |
220 | zlog_err ("RIPng send fail on %s to %s: %s", ifp->name, | |
3a2ce6a1 | 221 | inet6_ntoa (to->sin6_addr), safe_strerror (errno)); |
a94434b6 | 222 | else |
6099b3b5 | 223 | zlog_err ("RIPng send fail on %s: %s", ifp->name, safe_strerror (errno)); |
a94434b6 | 224 | } |
718e3744 | 225 | |
226 | return ret; | |
227 | } | |
228 | ||
229 | /* Receive UDP RIPng packet from socket. */ | |
6ac29a51 | 230 | static int |
718e3744 | 231 | ripng_recv_packet (int sock, u_char *buf, int bufsize, |
b892f1dd | 232 | struct sockaddr_in6 *from, ifindex_t *ifindex, |
718e3744 | 233 | int *hoplimit) |
234 | { | |
235 | int ret; | |
236 | struct msghdr msg; | |
237 | struct iovec iov; | |
238 | struct cmsghdr *cmsgptr; | |
c5e0075f | 239 | struct in6_addr dst = { .s6_addr = { 0 } }; |
718e3744 | 240 | |
37477535 DS |
241 | memset(&dst, 0, sizeof(struct in6_addr)); |
242 | ||
718e3744 | 243 | /* Ancillary data. This store cmsghdr and in6_pktinfo. But at this |
244 | point I can't determine size of cmsghdr */ | |
245 | char adata[1024]; | |
246 | ||
247 | /* Fill in message and iovec. */ | |
248 | msg.msg_name = (void *) from; | |
249 | msg.msg_namelen = sizeof (struct sockaddr_in6); | |
250 | msg.msg_iov = &iov; | |
251 | msg.msg_iovlen = 1; | |
252 | msg.msg_control = (void *) adata; | |
253 | msg.msg_controllen = sizeof adata; | |
254 | iov.iov_base = buf; | |
255 | iov.iov_len = bufsize; | |
256 | ||
257 | /* If recvmsg fail return minus value. */ | |
258 | ret = recvmsg (sock, &msg, 0); | |
259 | if (ret < 0) | |
260 | return ret; | |
261 | ||
b99760ab | 262 | for (cmsgptr = ZCMSG_FIRSTHDR(&msg); cmsgptr != NULL; |
718e3744 | 263 | cmsgptr = CMSG_NXTHDR(&msg, cmsgptr)) |
264 | { | |
265 | /* I want interface index which this packet comes from. */ | |
266 | if (cmsgptr->cmsg_level == IPPROTO_IPV6 && | |
267 | cmsgptr->cmsg_type == IPV6_PKTINFO) | |
268 | { | |
269 | struct in6_pktinfo *ptr; | |
270 | ||
271 | ptr = (struct in6_pktinfo *) CMSG_DATA (cmsgptr); | |
272 | *ifindex = ptr->ipi6_ifindex; | |
273 | dst = ptr->ipi6_addr; | |
274 | ||
275 | if (*ifindex == 0) | |
276 | zlog_warn ("Interface index returned by IPV6_PKTINFO is zero"); | |
277 | } | |
278 | ||
279 | /* Incoming packet's multicast hop limit. */ | |
280 | if (cmsgptr->cmsg_level == IPPROTO_IPV6 && | |
281 | cmsgptr->cmsg_type == IPV6_HOPLIMIT) | |
5eb9d11b SH |
282 | { |
283 | int *phoplimit = (int *) CMSG_DATA (cmsgptr); | |
284 | *hoplimit = *phoplimit; | |
285 | } | |
718e3744 | 286 | } |
287 | ||
288 | /* Hoplimit check shold be done when destination address is | |
289 | multicast address. */ | |
290 | if (! IN6_IS_ADDR_MULTICAST (&dst)) | |
291 | *hoplimit = -1; | |
292 | ||
293 | return ret; | |
294 | } | |
295 | ||
296 | /* Dump rip packet */ | |
297 | void | |
7a1d583c | 298 | ripng_packet_dump (struct ripng_packet *packet, int size, const char *sndrcv) |
718e3744 | 299 | { |
300 | caddr_t lim; | |
301 | struct rte *rte; | |
7a1d583c | 302 | const char *command_str; |
718e3744 | 303 | |
304 | /* Set command string. */ | |
305 | if (packet->command == RIPNG_REQUEST) | |
306 | command_str = "request"; | |
307 | else if (packet->command == RIPNG_RESPONSE) | |
308 | command_str = "response"; | |
309 | else | |
310 | command_str = "unknown"; | |
311 | ||
312 | /* Dump packet header. */ | |
c6106812 | 313 | zlog_debug ("%s %s version %d packet size %d", |
718e3744 | 314 | sndrcv, command_str, packet->version, size); |
315 | ||
316 | /* Dump each routing table entry. */ | |
317 | rte = packet->rte; | |
318 | ||
319 | for (lim = (caddr_t) packet + size; (caddr_t) rte < lim; rte++) | |
320 | { | |
321 | if (rte->metric == RIPNG_METRIC_NEXTHOP) | |
3a2ce6a1 | 322 | zlog_debug (" nexthop %s/%d", inet6_ntoa (rte->addr), rte->prefixlen); |
718e3744 | 323 | else |
c6106812 | 324 | zlog_debug (" %s/%d metric %d tag %d", |
3a2ce6a1 | 325 | inet6_ntoa (rte->addr), rte->prefixlen, |
718e3744 | 326 | rte->metric, ntohs (rte->tag)); |
327 | } | |
328 | } | |
329 | ||
330 | /* RIPng next hop address RTE (Route Table Entry). */ | |
6ac29a51 | 331 | static void |
718e3744 | 332 | ripng_nexthop_rte (struct rte *rte, |
333 | struct sockaddr_in6 *from, | |
334 | struct ripng_nexthop *nexthop) | |
335 | { | |
336 | char buf[INET6_BUFSIZ]; | |
337 | ||
338 | /* Logging before checking RTE. */ | |
339 | if (IS_RIPNG_DEBUG_RECV) | |
c6106812 | 340 | zlog_debug ("RIPng nexthop RTE address %s tag %d prefixlen %d", |
3a2ce6a1 | 341 | inet6_ntoa (rte->addr), ntohs (rte->tag), rte->prefixlen); |
718e3744 | 342 | |
343 | /* RFC2080 2.1.1 Next Hop: | |
344 | The route tag and prefix length in the next hop RTE must be | |
345 | set to zero on sending and ignored on receiption. */ | |
346 | if (ntohs (rte->tag) != 0) | |
347 | zlog_warn ("RIPng nexthop RTE with non zero tag value %d from %s", | |
3a2ce6a1 | 348 | ntohs (rte->tag), inet6_ntoa (from->sin6_addr)); |
718e3744 | 349 | |
350 | if (rte->prefixlen != 0) | |
351 | zlog_warn ("RIPng nexthop RTE with non zero prefixlen value %d from %s", | |
3a2ce6a1 | 352 | rte->prefixlen, inet6_ntoa (from->sin6_addr)); |
718e3744 | 353 | |
354 | /* Specifying a value of 0:0:0:0:0:0:0:0 in the prefix field of a | |
355 | next hop RTE indicates that the next hop address should be the | |
356 | originator of the RIPng advertisement. An address specified as a | |
357 | next hop must be a link-local address. */ | |
358 | if (IN6_IS_ADDR_UNSPECIFIED (&rte->addr)) | |
359 | { | |
360 | nexthop->flag = RIPNG_NEXTHOP_UNSPEC; | |
361 | memset (&nexthop->address, 0, sizeof (struct in6_addr)); | |
362 | return; | |
363 | } | |
364 | ||
365 | if (IN6_IS_ADDR_LINKLOCAL (&rte->addr)) | |
366 | { | |
367 | nexthop->flag = RIPNG_NEXTHOP_ADDRESS; | |
368 | IPV6_ADDR_COPY (&nexthop->address, &rte->addr); | |
369 | return; | |
370 | } | |
371 | ||
372 | /* The purpose of the next hop RTE is to eliminate packets being | |
373 | routed through extra hops in the system. It is particularly useful | |
374 | when RIPng is not being run on all of the routers on a network. | |
375 | Note that next hop RTE is "advisory". That is, if the provided | |
376 | information is ignored, a possibly sub-optimal, but absolutely | |
377 | valid, route may be taken. If the received next hop address is not | |
378 | a link-local address, it should be treated as 0:0:0:0:0:0:0:0. */ | |
379 | zlog_warn ("RIPng nexthop RTE with non link-local address %s from %s", | |
3a2ce6a1 | 380 | inet6_ntoa (rte->addr), |
718e3744 | 381 | inet_ntop (AF_INET6, &from->sin6_addr, buf, INET6_BUFSIZ)); |
382 | ||
383 | nexthop->flag = RIPNG_NEXTHOP_UNSPEC; | |
384 | memset (&nexthop->address, 0, sizeof (struct in6_addr)); | |
385 | ||
386 | return; | |
387 | } | |
388 | ||
389 | /* If ifp has same link-local address then return 1. */ | |
6ac29a51 | 390 | static int |
718e3744 | 391 | ripng_lladdr_check (struct interface *ifp, struct in6_addr *addr) |
392 | { | |
1eb8ef25 | 393 | struct listnode *node; |
718e3744 | 394 | struct connected *connected; |
395 | struct prefix *p; | |
396 | ||
1eb8ef25 | 397 | for (ALL_LIST_ELEMENTS_RO (ifp->connected, node, connected)) |
398 | { | |
399 | p = connected->address; | |
718e3744 | 400 | |
1eb8ef25 | 401 | if (p->family == AF_INET6 && |
402 | IN6_IS_ADDR_LINKLOCAL (&p->u.prefix6) && | |
403 | IN6_ARE_ADDR_EQUAL (&p->u.prefix6, addr)) | |
404 | return 1; | |
405 | } | |
718e3744 | 406 | return 0; |
407 | } | |
408 | ||
409 | /* RIPng route garbage collect timer. */ | |
6ac29a51 | 410 | static int |
718e3744 | 411 | ripng_garbage_collect (struct thread *t) |
412 | { | |
413 | struct ripng_info *rinfo; | |
414 | struct route_node *rp; | |
415 | ||
416 | rinfo = THREAD_ARG (t); | |
417 | rinfo->t_garbage_collect = NULL; | |
418 | ||
419 | /* Off timeout timer. */ | |
420 | RIPNG_TIMER_OFF (rinfo->t_timeout); | |
421 | ||
422 | /* Get route_node pointer. */ | |
423 | rp = rinfo->rp; | |
424 | ||
718e3744 | 425 | /* Unlock route_node. */ |
c880b636 FL |
426 | listnode_delete (rp->info, rinfo); |
427 | if (list_isempty ((struct list *)rp->info)) | |
428 | { | |
429 | list_free (rp->info); | |
430 | rp->info = NULL; | |
431 | route_unlock_node (rp); | |
432 | } | |
718e3744 | 433 | |
434 | /* Free RIPng routing information. */ | |
435 | ripng_info_free (rinfo); | |
436 | ||
437 | return 0; | |
438 | } | |
439 | ||
c880b636 FL |
440 | static void ripng_timeout_update (struct ripng_info *rinfo); |
441 | ||
442 | /* Add new route to the ECMP list. | |
fac76f9c FL |
443 | * RETURN: the new entry added in the list, or NULL if it is not the first |
444 | * entry and ECMP is not allowed. | |
c880b636 FL |
445 | */ |
446 | struct ripng_info * | |
447 | ripng_ecmp_add (struct ripng_info *rinfo_new) | |
718e3744 | 448 | { |
c880b636 FL |
449 | struct route_node *rp = rinfo_new->rp; |
450 | struct ripng_info *rinfo = NULL; | |
451 | struct list *list = NULL; | |
718e3744 | 452 | |
c880b636 FL |
453 | if (rp->info == NULL) |
454 | rp->info = list_new (); | |
455 | list = (struct list *)rp->info; | |
718e3744 | 456 | |
fac76f9c FL |
457 | /* If ECMP is not allowed and some entry already exists in the list, |
458 | * do nothing. */ | |
459 | if (listcount (list) && !ripng->ecmp) | |
460 | return NULL; | |
461 | ||
c880b636 FL |
462 | rinfo = ripng_info_new (); |
463 | memcpy (rinfo, rinfo_new, sizeof (struct ripng_info)); | |
464 | listnode_add (list, rinfo); | |
465 | ||
466 | if (ripng_route_rte (rinfo)) | |
467 | { | |
468 | ripng_timeout_update (rinfo); | |
469 | ripng_zebra_ipv6_add (rp); | |
470 | } | |
471 | ||
472 | ripng_aggregate_increment (rp, rinfo); | |
473 | ||
474 | /* Set the route change flag on the first entry. */ | |
475 | rinfo = listgetdata (listhead (list)); | |
476 | SET_FLAG (rinfo->flags, RIPNG_RTF_CHANGED); | |
477 | ||
478 | /* Signal the output process to trigger an update. */ | |
479 | ripng_event (RIPNG_TRIGGERED_UPDATE, 0); | |
480 | ||
481 | return rinfo; | |
482 | } | |
483 | ||
484 | /* Replace the ECMP list with the new route. | |
485 | * RETURN: the new entry added in the list | |
486 | */ | |
487 | struct ripng_info * | |
488 | ripng_ecmp_replace (struct ripng_info *rinfo_new) | |
489 | { | |
490 | struct route_node *rp = rinfo_new->rp; | |
491 | struct list *list = (struct list *)rp->info; | |
492 | struct ripng_info *rinfo = NULL, *tmp_rinfo = NULL; | |
493 | struct listnode *node = NULL, *nextnode = NULL; | |
494 | ||
495 | if (list == NULL || listcount (list) == 0) | |
496 | return ripng_ecmp_add (rinfo_new); | |
497 | ||
498 | /* Get the first entry */ | |
499 | rinfo = listgetdata (listhead (list)); | |
718e3744 | 500 | |
c880b636 FL |
501 | /* Learnt route replaced by a local one. Delete it from zebra. */ |
502 | if (ripng_route_rte (rinfo) && !ripng_route_rte (rinfo_new)) | |
503 | if (CHECK_FLAG (rinfo->flags, RIPNG_RTF_FIB)) | |
504 | ripng_zebra_ipv6_delete (rp); | |
718e3744 | 505 | |
c880b636 FL |
506 | if (rinfo->metric != RIPNG_METRIC_INFINITY) |
507 | ripng_aggregate_decrement_list (rp, list); | |
a94434b6 | 508 | |
c880b636 FL |
509 | /* Re-use the first entry, and delete the others. */ |
510 | for (ALL_LIST_ELEMENTS (list, node, nextnode, tmp_rinfo)) | |
511 | if (tmp_rinfo != rinfo) | |
512 | { | |
513 | RIPNG_TIMER_OFF (tmp_rinfo->t_timeout); | |
514 | RIPNG_TIMER_OFF (tmp_rinfo->t_garbage_collect); | |
515 | list_delete_node (list, node); | |
516 | ripng_info_free (tmp_rinfo); | |
517 | } | |
718e3744 | 518 | |
c880b636 FL |
519 | RIPNG_TIMER_OFF (rinfo->t_timeout); |
520 | RIPNG_TIMER_OFF (rinfo->t_garbage_collect); | |
521 | memcpy (rinfo, rinfo_new, sizeof (struct ripng_info)); | |
718e3744 | 522 | |
c880b636 FL |
523 | if (ripng_route_rte (rinfo)) |
524 | { | |
525 | ripng_timeout_update (rinfo); | |
526 | /* The ADD message implies an update. */ | |
527 | ripng_zebra_ipv6_add (rp); | |
528 | } | |
529 | ||
530 | ripng_aggregate_increment (rp, rinfo); | |
531 | ||
532 | /* Set the route change flag. */ | |
533 | SET_FLAG (rinfo->flags, RIPNG_RTF_CHANGED); | |
534 | ||
535 | /* Signal the output process to trigger an update. */ | |
718e3744 | 536 | ripng_event (RIPNG_TRIGGERED_UPDATE, 0); |
537 | ||
c880b636 FL |
538 | return rinfo; |
539 | } | |
540 | ||
541 | /* Delete one route from the ECMP list. | |
542 | * RETURN: | |
543 | * null - the entry is freed, and other entries exist in the list | |
544 | * the entry - the entry is the last one in the list; its metric is set | |
545 | * to INFINITY, and the garbage collector is started for it | |
546 | */ | |
547 | struct ripng_info * | |
548 | ripng_ecmp_delete (struct ripng_info *rinfo) | |
549 | { | |
550 | struct route_node *rp = rinfo->rp; | |
551 | struct list *list = (struct list *)rp->info; | |
552 | ||
553 | RIPNG_TIMER_OFF (rinfo->t_timeout); | |
554 | ||
555 | if (rinfo->metric != RIPNG_METRIC_INFINITY) | |
556 | ripng_aggregate_decrement (rp, rinfo); | |
557 | ||
558 | if (listcount (list) > 1) | |
559 | { | |
560 | /* Some other ECMP entries still exist. Just delete this entry. */ | |
561 | RIPNG_TIMER_OFF (rinfo->t_garbage_collect); | |
562 | listnode_delete (list, rinfo); | |
563 | if (ripng_route_rte (rinfo) && CHECK_FLAG (rinfo->flags, RIPNG_RTF_FIB)) | |
564 | /* The ADD message implies the update. */ | |
565 | ripng_zebra_ipv6_add (rp); | |
566 | ripng_info_free (rinfo); | |
567 | rinfo = NULL; | |
568 | } | |
569 | else | |
570 | { | |
571 | assert (rinfo == listgetdata (listhead (list))); | |
572 | ||
573 | /* This is the only entry left in the list. We must keep it in | |
574 | * the list for garbage collection time, with INFINITY metric. */ | |
575 | ||
576 | rinfo->metric = RIPNG_METRIC_INFINITY; | |
577 | RIPNG_TIMER_ON (rinfo->t_garbage_collect, | |
578 | ripng_garbage_collect, ripng->garbage_time); | |
579 | ||
580 | if (ripng_route_rte (rinfo) && CHECK_FLAG (rinfo->flags, RIPNG_RTF_FIB)) | |
581 | ripng_zebra_ipv6_delete (rp); | |
582 | } | |
583 | ||
584 | /* Set the route change flag on the first entry. */ | |
585 | rinfo = listgetdata (listhead (list)); | |
586 | SET_FLAG (rinfo->flags, RIPNG_RTF_CHANGED); | |
587 | ||
588 | /* Signal the output process to trigger an update. */ | |
589 | ripng_event (RIPNG_TRIGGERED_UPDATE, 0); | |
590 | ||
591 | return rinfo; | |
592 | } | |
593 | ||
594 | /* Timeout RIPng routes. */ | |
595 | static int | |
596 | ripng_timeout (struct thread *t) | |
597 | { | |
598 | ripng_ecmp_delete ((struct ripng_info *)THREAD_ARG (t)); | |
718e3744 | 599 | return 0; |
600 | } | |
601 | ||
6ac29a51 | 602 | static void |
718e3744 | 603 | ripng_timeout_update (struct ripng_info *rinfo) |
604 | { | |
605 | if (rinfo->metric != RIPNG_METRIC_INFINITY) | |
606 | { | |
607 | RIPNG_TIMER_OFF (rinfo->t_timeout); | |
608 | RIPNG_TIMER_ON (rinfo->t_timeout, ripng_timeout, ripng->timeout_time); | |
609 | } | |
610 | } | |
611 | ||
6ac29a51 | 612 | static int |
a94434b6 | 613 | ripng_incoming_filter (struct prefix_ipv6 *p, struct ripng_interface *ri) |
614 | { | |
615 | struct distribute *dist; | |
616 | struct access_list *alist; | |
617 | struct prefix_list *plist; | |
618 | ||
619 | /* Input distribute-list filtering. */ | |
620 | if (ri->list[RIPNG_FILTER_IN]) | |
621 | { | |
622 | if (access_list_apply (ri->list[RIPNG_FILTER_IN], | |
623 | (struct prefix *) p) == FILTER_DENY) | |
624 | { | |
625 | if (IS_RIPNG_DEBUG_PACKET) | |
c6106812 | 626 | zlog_debug ("%s/%d filtered by distribute in", |
3a2ce6a1 | 627 | inet6_ntoa (p->prefix), p->prefixlen); |
a94434b6 | 628 | return -1; |
629 | } | |
630 | } | |
631 | if (ri->prefix[RIPNG_FILTER_IN]) | |
632 | { | |
633 | if (prefix_list_apply (ri->prefix[RIPNG_FILTER_IN], | |
634 | (struct prefix *) p) == PREFIX_DENY) | |
635 | { | |
636 | if (IS_RIPNG_DEBUG_PACKET) | |
c6106812 | 637 | zlog_debug ("%s/%d filtered by prefix-list in", |
3a2ce6a1 | 638 | inet6_ntoa (p->prefix), p->prefixlen); |
a94434b6 | 639 | return -1; |
640 | } | |
641 | } | |
642 | ||
643 | /* All interface filter check. */ | |
644 | dist = distribute_lookup (NULL); | |
645 | if (dist) | |
646 | { | |
647 | if (dist->list[DISTRIBUTE_IN]) | |
648 | { | |
649 | alist = access_list_lookup (AFI_IP6, dist->list[DISTRIBUTE_IN]); | |
650 | ||
651 | if (alist) | |
652 | { | |
653 | if (access_list_apply (alist, | |
654 | (struct prefix *) p) == FILTER_DENY) | |
655 | { | |
656 | if (IS_RIPNG_DEBUG_PACKET) | |
c6106812 | 657 | zlog_debug ("%s/%d filtered by distribute in", |
3a2ce6a1 | 658 | inet6_ntoa (p->prefix), p->prefixlen); |
a94434b6 | 659 | return -1; |
660 | } | |
661 | } | |
662 | } | |
663 | if (dist->prefix[DISTRIBUTE_IN]) | |
664 | { | |
665 | plist = prefix_list_lookup (AFI_IP6, dist->prefix[DISTRIBUTE_IN]); | |
666 | ||
667 | if (plist) | |
668 | { | |
669 | if (prefix_list_apply (plist, | |
670 | (struct prefix *) p) == PREFIX_DENY) | |
671 | { | |
672 | if (IS_RIPNG_DEBUG_PACKET) | |
c6106812 | 673 | zlog_debug ("%s/%d filtered by prefix-list in", |
3a2ce6a1 | 674 | inet6_ntoa (p->prefix), p->prefixlen); |
a94434b6 | 675 | return -1; |
676 | } | |
677 | } | |
678 | } | |
679 | } | |
680 | return 0; | |
681 | } | |
682 | ||
6ac29a51 | 683 | static int |
a94434b6 | 684 | ripng_outgoing_filter (struct prefix_ipv6 *p, struct ripng_interface *ri) |
685 | { | |
686 | struct distribute *dist; | |
687 | struct access_list *alist; | |
688 | struct prefix_list *plist; | |
689 | ||
690 | if (ri->list[RIPNG_FILTER_OUT]) | |
691 | { | |
692 | if (access_list_apply (ri->list[RIPNG_FILTER_OUT], | |
693 | (struct prefix *) p) == FILTER_DENY) | |
694 | { | |
695 | if (IS_RIPNG_DEBUG_PACKET) | |
c6106812 | 696 | zlog_debug ("%s/%d is filtered by distribute out", |
3a2ce6a1 | 697 | inet6_ntoa (p->prefix), p->prefixlen); |
a94434b6 | 698 | return -1; |
699 | } | |
700 | } | |
701 | if (ri->prefix[RIPNG_FILTER_OUT]) | |
702 | { | |
703 | if (prefix_list_apply (ri->prefix[RIPNG_FILTER_OUT], | |
704 | (struct prefix *) p) == PREFIX_DENY) | |
705 | { | |
706 | if (IS_RIPNG_DEBUG_PACKET) | |
c6106812 | 707 | zlog_debug ("%s/%d is filtered by prefix-list out", |
3a2ce6a1 | 708 | inet6_ntoa (p->prefix), p->prefixlen); |
a94434b6 | 709 | return -1; |
710 | } | |
711 | } | |
712 | ||
713 | /* All interface filter check. */ | |
714 | dist = distribute_lookup (NULL); | |
715 | if (dist) | |
716 | { | |
717 | if (dist->list[DISTRIBUTE_OUT]) | |
718 | { | |
719 | alist = access_list_lookup (AFI_IP6, dist->list[DISTRIBUTE_OUT]); | |
720 | ||
721 | if (alist) | |
722 | { | |
723 | if (access_list_apply (alist, | |
724 | (struct prefix *) p) == FILTER_DENY) | |
725 | { | |
726 | if (IS_RIPNG_DEBUG_PACKET) | |
c6106812 | 727 | zlog_debug ("%s/%d filtered by distribute out", |
3a2ce6a1 | 728 | inet6_ntoa (p->prefix), p->prefixlen); |
a94434b6 | 729 | return -1; |
730 | } | |
731 | } | |
732 | } | |
733 | if (dist->prefix[DISTRIBUTE_OUT]) | |
734 | { | |
735 | plist = prefix_list_lookup (AFI_IP6, dist->prefix[DISTRIBUTE_OUT]); | |
736 | ||
737 | if (plist) | |
738 | { | |
739 | if (prefix_list_apply (plist, | |
740 | (struct prefix *) p) == PREFIX_DENY) | |
741 | { | |
742 | if (IS_RIPNG_DEBUG_PACKET) | |
c6106812 | 743 | zlog_debug ("%s/%d filtered by prefix-list out", |
3a2ce6a1 | 744 | inet6_ntoa (p->prefix), p->prefixlen); |
a94434b6 | 745 | return -1; |
746 | } | |
747 | } | |
748 | } | |
749 | } | |
750 | return 0; | |
751 | } | |
752 | ||
718e3744 | 753 | /* Process RIPng route according to RFC2080. */ |
6ac29a51 | 754 | static void |
718e3744 | 755 | ripng_route_process (struct rte *rte, struct sockaddr_in6 *from, |
756 | struct ripng_nexthop *ripng_nexthop, | |
757 | struct interface *ifp) | |
758 | { | |
a94434b6 | 759 | int ret; |
718e3744 | 760 | struct prefix_ipv6 p; |
761 | struct route_node *rp; | |
c880b636 | 762 | struct ripng_info *rinfo = NULL, newinfo; |
718e3744 | 763 | struct ripng_interface *ri; |
764 | struct in6_addr *nexthop; | |
718e3744 | 765 | int same = 0; |
c880b636 FL |
766 | struct list *list = NULL; |
767 | struct listnode *node = NULL; | |
718e3744 | 768 | |
769 | /* Make prefix structure. */ | |
770 | memset (&p, 0, sizeof (struct prefix_ipv6)); | |
771 | p.family = AF_INET6; | |
772 | /* p.prefix = rte->addr; */ | |
773 | IPV6_ADDR_COPY (&p.prefix, &rte->addr); | |
774 | p.prefixlen = rte->prefixlen; | |
775 | ||
776 | /* Make sure mask is applied. */ | |
777 | /* XXX We have to check the prefix is valid or not before call | |
778 | apply_mask_ipv6. */ | |
779 | apply_mask_ipv6 (&p); | |
780 | ||
781 | /* Apply input filters. */ | |
782 | ri = ifp->info; | |
783 | ||
a94434b6 | 784 | ret = ripng_incoming_filter (&p, ri); |
785 | if (ret < 0) | |
786 | return; | |
718e3744 | 787 | |
c880b636 FL |
788 | memset (&newinfo, 0, sizeof (newinfo)); |
789 | newinfo.type = ZEBRA_ROUTE_RIPNG; | |
790 | newinfo.sub_type = RIPNG_ROUTE_RTE; | |
791 | if (ripng_nexthop->flag == RIPNG_NEXTHOP_ADDRESS) | |
792 | newinfo.nexthop = ripng_nexthop->address; | |
793 | else | |
794 | newinfo.nexthop = from->sin6_addr; | |
795 | newinfo.from = from->sin6_addr; | |
796 | newinfo.ifindex = ifp->ifindex; | |
797 | newinfo.metric = rte->metric; | |
798 | newinfo.metric_out = rte->metric; /* XXX */ | |
799 | newinfo.tag = ntohs (rte->tag); /* XXX */ | |
800 | ||
718e3744 | 801 | /* Modify entry. */ |
802 | if (ri->routemap[RIPNG_FILTER_IN]) | |
803 | { | |
804 | int ret; | |
718e3744 | 805 | |
806 | ret = route_map_apply (ri->routemap[RIPNG_FILTER_IN], | |
807 | (struct prefix *)&p, RMAP_RIPNG, &newinfo); | |
808 | ||
809 | if (ret == RMAP_DENYMATCH) | |
810 | { | |
811 | if (IS_RIPNG_DEBUG_PACKET) | |
c6106812 | 812 | zlog_debug ("RIPng %s/%d is filtered by route-map in", |
3a2ce6a1 | 813 | inet6_ntoa (p.prefix), p.prefixlen); |
718e3744 | 814 | return; |
815 | } | |
816 | ||
a94434b6 | 817 | /* Get back the object */ |
818 | if (ripng_nexthop->flag == RIPNG_NEXTHOP_ADDRESS) { | |
819 | if (! IPV6_ADDR_SAME(&newinfo.nexthop, &ripng_nexthop->address) ) { | |
820 | /* the nexthop get changed by the routemap */ | |
821 | if (IN6_IS_ADDR_LINKLOCAL(&newinfo.nexthop)) | |
822 | ripng_nexthop->address = newinfo.nexthop; | |
823 | else | |
824 | ripng_nexthop->address = in6addr_any; | |
825 | } | |
826 | } else { | |
827 | if (! IPV6_ADDR_SAME(&newinfo.nexthop, &from->sin6_addr) ) { | |
828 | /* the nexthop get changed by the routemap */ | |
829 | if (IN6_IS_ADDR_LINKLOCAL(&newinfo.nexthop)) { | |
830 | ripng_nexthop->flag = RIPNG_NEXTHOP_ADDRESS; | |
831 | ripng_nexthop->address = newinfo.nexthop; | |
832 | } | |
833 | } | |
834 | } | |
835 | rte->tag = htons(newinfo.tag_out); /* XXX */ | |
836 | rte->metric = newinfo.metric_out; /* XXX: the routemap uses the metric_out field */ | |
718e3744 | 837 | } |
838 | ||
a94434b6 | 839 | /* Once the entry has been validated, update the metric by |
840 | * adding the cost of the network on wich the message | |
841 | * arrived. If the result is greater than infinity, use infinity | |
842 | * (RFC2453 Sec. 3.9.2) | |
843 | **/ | |
844 | ||
845 | /* Zebra ripngd can handle offset-list in. */ | |
846 | ret = ripng_offset_list_apply_in (&p, ifp, &rte->metric); | |
847 | ||
848 | /* If offset-list does not modify the metric use interface's | |
849 | * one. */ | |
850 | if (! ret) | |
7b3b98ae | 851 | rte->metric += ifp->metric ? ifp->metric : 1; |
a94434b6 | 852 | |
853 | if (rte->metric > RIPNG_METRIC_INFINITY) | |
854 | rte->metric = RIPNG_METRIC_INFINITY; | |
855 | ||
718e3744 | 856 | /* Set nexthop pointer. */ |
857 | if (ripng_nexthop->flag == RIPNG_NEXTHOP_ADDRESS) | |
858 | nexthop = &ripng_nexthop->address; | |
859 | else | |
860 | nexthop = &from->sin6_addr; | |
861 | ||
862 | /* Lookup RIPng routing table. */ | |
863 | rp = route_node_get (ripng->table, (struct prefix *) &p); | |
864 | ||
c880b636 FL |
865 | newinfo.rp = rp; |
866 | newinfo.nexthop = *nexthop; | |
867 | newinfo.metric = rte->metric; | |
868 | newinfo.tag = ntohs (rte->tag); | |
869 | ||
870 | /* Check to see whether there is already RIPng route on the table. */ | |
871 | if ((list = rp->info) != NULL) | |
872 | for (ALL_LIST_ELEMENTS_RO (list, node, rinfo)) | |
873 | { | |
874 | /* Need to compare with redistributed entry or local entry */ | |
875 | if (!ripng_route_rte (rinfo)) | |
876 | break; | |
877 | ||
878 | if (IPV6_ADDR_SAME (&rinfo->from, &from->sin6_addr) && | |
879 | IPV6_ADDR_SAME (&rinfo->nexthop, nexthop)) | |
880 | break; | |
881 | ||
882 | if (!listnextnode (node)) | |
883 | { | |
884 | /* Not found in the list */ | |
885 | ||
886 | if (rte->metric > rinfo->metric) | |
887 | { | |
888 | /* New route has a greater metric. Discard it. */ | |
889 | route_unlock_node (rp); | |
890 | return; | |
891 | } | |
892 | ||
893 | if (rte->metric < rinfo->metric) | |
894 | /* New route has a smaller metric. Replace the ECMP list | |
895 | * with the new one in below. */ | |
896 | break; | |
897 | ||
898 | /* Metrics are same. Keep "rinfo" null and the new route | |
899 | * is added in the ECMP list in below. */ | |
900 | } | |
901 | } | |
902 | ||
a94434b6 | 903 | if (rinfo) |
904 | { | |
905 | /* Redistributed route check. */ | |
906 | if (rinfo->type != ZEBRA_ROUTE_RIPNG | |
907 | && rinfo->metric != RIPNG_METRIC_INFINITY) | |
c880b636 FL |
908 | { |
909 | route_unlock_node (rp); | |
910 | return; | |
911 | } | |
a94434b6 | 912 | |
913 | /* Local static route. */ | |
914 | if (rinfo->type == ZEBRA_ROUTE_RIPNG | |
915 | && ((rinfo->sub_type == RIPNG_ROUTE_STATIC) || | |
916 | (rinfo->sub_type == RIPNG_ROUTE_DEFAULT)) | |
917 | && rinfo->metric != RIPNG_METRIC_INFINITY) | |
c880b636 FL |
918 | { |
919 | route_unlock_node (rp); | |
920 | return; | |
921 | } | |
a94434b6 | 922 | } |
923 | ||
c880b636 | 924 | if (!rinfo) |
718e3744 | 925 | { |
926 | /* Now, check to see whether there is already an explicit route | |
927 | for the destination prefix. If there is no such route, add | |
928 | this route to the routing table, unless the metric is | |
929 | infinity (there is no point in adding a route which | |
930 | unusable). */ | |
931 | if (rte->metric != RIPNG_METRIC_INFINITY) | |
c880b636 | 932 | ripng_ecmp_add (&newinfo); |
718e3744 | 933 | } |
934 | else | |
935 | { | |
718e3744 | 936 | /* If there is an existing route, compare the next hop address |
937 | to the address of the router from which the datagram came. | |
938 | If this datagram is from the same router as the existing | |
939 | route, reinitialize the timeout. */ | |
940 | same = (IN6_ARE_ADDR_EQUAL (&rinfo->from, &from->sin6_addr) | |
941 | && (rinfo->ifindex == ifp->ifindex)); | |
942 | ||
718e3744 | 943 | /* Next, compare the metrics. If the datagram is from the same |
944 | router as the existing route, and the new metric is different | |
945 | than the old one; or, if the new metric is lower than the old | |
946 | one; do the following actions: */ | |
947 | if ((same && rinfo->metric != rte->metric) || | |
948 | rte->metric < rinfo->metric) | |
949 | { | |
c880b636 FL |
950 | if (listcount (list) == 1) |
951 | { | |
952 | if (newinfo.metric != RIPNG_METRIC_INFINITY) | |
953 | ripng_ecmp_replace (&newinfo); | |
954 | else | |
955 | ripng_ecmp_delete (rinfo); | |
956 | } | |
957 | else | |
958 | { | |
959 | if (newinfo.metric < rinfo->metric) | |
960 | ripng_ecmp_replace (&newinfo); | |
961 | else /* newinfo.metric > rinfo->metric */ | |
962 | ripng_ecmp_delete (rinfo); | |
963 | } | |
718e3744 | 964 | } |
c880b636 FL |
965 | else /* same & no change */ |
966 | ripng_timeout_update (rinfo); | |
967 | ||
718e3744 | 968 | /* Unlock tempolary lock of the route. */ |
969 | route_unlock_node (rp); | |
970 | } | |
971 | } | |
972 | ||
973 | /* Add redistributed route to RIPng table. */ | |
974 | void | |
975 | ripng_redistribute_add (int type, int sub_type, struct prefix_ipv6 *p, | |
b892f1dd | 976 | ifindex_t ifindex, struct in6_addr *nexthop) |
718e3744 | 977 | { |
978 | struct route_node *rp; | |
c880b636 FL |
979 | struct ripng_info *rinfo = NULL, newinfo; |
980 | struct list *list = NULL; | |
718e3744 | 981 | |
982 | /* Redistribute route */ | |
983 | if (IN6_IS_ADDR_LINKLOCAL (&p->prefix)) | |
984 | return; | |
985 | if (IN6_IS_ADDR_LOOPBACK (&p->prefix)) | |
986 | return; | |
987 | ||
988 | rp = route_node_get (ripng->table, (struct prefix *) p); | |
718e3744 | 989 | |
c880b636 FL |
990 | memset (&newinfo, 0, sizeof (struct ripng_info)); |
991 | newinfo.type = type; | |
992 | newinfo.sub_type = sub_type; | |
993 | newinfo.ifindex = ifindex; | |
994 | newinfo.metric = 1; | |
995 | newinfo.rp = rp; | |
996 | if (nexthop && IN6_IS_ADDR_LINKLOCAL(nexthop)) | |
997 | newinfo.nexthop = *nexthop; | |
998 | ||
999 | if ((list = rp->info) != NULL && listcount (list) != 0) | |
718e3744 | 1000 | { |
c880b636 FL |
1001 | rinfo = listgetdata (listhead (list)); |
1002 | ||
a94434b6 | 1003 | if (rinfo->type == ZEBRA_ROUTE_CONNECT |
1004 | && rinfo->sub_type == RIPNG_ROUTE_INTERFACE | |
1005 | && rinfo->metric != RIPNG_METRIC_INFINITY) { | |
1006 | route_unlock_node (rp); | |
1007 | return; | |
1008 | } | |
1009 | ||
1010 | /* Manually configured RIPng route check. | |
1011 | * They have the precedence on all the other entries. | |
1012 | **/ | |
1013 | if (rinfo->type == ZEBRA_ROUTE_RIPNG | |
1014 | && ((rinfo->sub_type == RIPNG_ROUTE_STATIC) || | |
1015 | (rinfo->sub_type == RIPNG_ROUTE_DEFAULT)) ) { | |
1016 | if (type != ZEBRA_ROUTE_RIPNG || ((sub_type != RIPNG_ROUTE_STATIC) && | |
1017 | (sub_type != RIPNG_ROUTE_DEFAULT))) { | |
1018 | route_unlock_node (rp); | |
1019 | return; | |
1020 | } | |
1021 | } | |
a94434b6 | 1022 | |
c880b636 | 1023 | rinfo = ripng_ecmp_replace (&newinfo); |
718e3744 | 1024 | route_unlock_node (rp); |
1025 | } | |
c880b636 FL |
1026 | else |
1027 | rinfo = ripng_ecmp_add (&newinfo); | |
a94434b6 | 1028 | |
1029 | if (IS_RIPNG_DEBUG_EVENT) { | |
1030 | if (!nexthop) | |
c6106812 | 1031 | zlog_debug ("Redistribute new prefix %s/%d on the interface %s", |
3a2ce6a1 | 1032 | inet6_ntoa(p->prefix), p->prefixlen, |
a94434b6 | 1033 | ifindex2ifname(ifindex)); |
1034 | else | |
c6106812 | 1035 | zlog_debug ("Redistribute new prefix %s/%d with nexthop %s on the interface %s", |
3a2ce6a1 | 1036 | inet6_ntoa(p->prefix), p->prefixlen, inet6_ntoa(*nexthop), |
a94434b6 | 1037 | ifindex2ifname(ifindex)); |
1038 | } | |
1039 | ||
1040 | ripng_event (RIPNG_TRIGGERED_UPDATE, 0); | |
718e3744 | 1041 | } |
1042 | ||
1043 | /* Delete redistributed route to RIPng table. */ | |
1044 | void | |
1045 | ripng_redistribute_delete (int type, int sub_type, struct prefix_ipv6 *p, | |
b892f1dd | 1046 | ifindex_t ifindex) |
718e3744 | 1047 | { |
1048 | struct route_node *rp; | |
1049 | struct ripng_info *rinfo; | |
1050 | ||
1051 | if (IN6_IS_ADDR_LINKLOCAL (&p->prefix)) | |
1052 | return; | |
1053 | if (IN6_IS_ADDR_LOOPBACK (&p->prefix)) | |
1054 | return; | |
1055 | ||
1056 | rp = route_node_lookup (ripng->table, (struct prefix *) p); | |
1057 | ||
1058 | if (rp) | |
1059 | { | |
c880b636 FL |
1060 | struct list *list = rp->info; |
1061 | ||
1062 | if (list != NULL && listcount (list) != 0) | |
1063 | { | |
1064 | rinfo = listgetdata (listhead (list)); | |
1065 | if (rinfo != NULL | |
1066 | && rinfo->type == type | |
1067 | && rinfo->sub_type == sub_type | |
1068 | && rinfo->ifindex == ifindex) | |
1069 | { | |
1070 | /* Perform poisoned reverse. */ | |
1071 | rinfo->metric = RIPNG_METRIC_INFINITY; | |
1072 | RIPNG_TIMER_ON (rinfo->t_garbage_collect, | |
1073 | ripng_garbage_collect, ripng->garbage_time); | |
1074 | RIPNG_TIMER_OFF (rinfo->t_timeout); | |
1075 | ||
1076 | /* Aggregate count decrement. */ | |
1077 | ripng_aggregate_decrement (rp, rinfo); | |
1078 | ||
1079 | rinfo->flags |= RIPNG_RTF_CHANGED; | |
1080 | ||
1081 | if (IS_RIPNG_DEBUG_EVENT) | |
1082 | zlog_debug ("Poisone %s/%d on the interface %s with an " | |
1083 | "infinity metric [delete]", | |
1084 | inet6_ntoa (p->prefix), p->prefixlen, | |
1085 | ifindex2ifname (ifindex)); | |
1086 | ||
1087 | ripng_event (RIPNG_TRIGGERED_UPDATE, 0); | |
1088 | } | |
1089 | } | |
1090 | route_unlock_node (rp); | |
718e3744 | 1091 | } |
1092 | } | |
1093 | ||
1094 | /* Withdraw redistributed route. */ | |
1095 | void | |
1096 | ripng_redistribute_withdraw (int type) | |
1097 | { | |
1098 | struct route_node *rp; | |
c880b636 FL |
1099 | struct ripng_info *rinfo = NULL; |
1100 | struct list *list = NULL; | |
718e3744 | 1101 | |
a94434b6 | 1102 | if (!ripng) |
1103 | return; | |
1104 | ||
718e3744 | 1105 | for (rp = route_top (ripng->table); rp; rp = route_next (rp)) |
c880b636 | 1106 | if ((list = rp->info) != NULL) |
718e3744 | 1107 | { |
c880b636 | 1108 | rinfo = listgetdata (listhead (list)); |
a94434b6 | 1109 | if ((rinfo->type == type) |
1110 | && (rinfo->sub_type != RIPNG_ROUTE_INTERFACE)) | |
718e3744 | 1111 | { |
a94434b6 | 1112 | /* Perform poisoned reverse. */ |
1113 | rinfo->metric = RIPNG_METRIC_INFINITY; | |
1114 | RIPNG_TIMER_ON (rinfo->t_garbage_collect, | |
1115 | ripng_garbage_collect, ripng->garbage_time); | |
718e3744 | 1116 | RIPNG_TIMER_OFF (rinfo->t_timeout); |
718e3744 | 1117 | |
a94434b6 | 1118 | /* Aggregate count decrement. */ |
1119 | ripng_aggregate_decrement (rp, rinfo); | |
1120 | ||
1121 | rinfo->flags |= RIPNG_RTF_CHANGED; | |
1122 | ||
1123 | if (IS_RIPNG_DEBUG_EVENT) { | |
1124 | struct prefix_ipv6 *p = (struct prefix_ipv6 *) &rp->p; | |
718e3744 | 1125 | |
c6106812 | 1126 | zlog_debug ("Poisone %s/%d on the interface %s [withdraw]", |
3a2ce6a1 | 1127 | inet6_ntoa(p->prefix), p->prefixlen, |
a94434b6 | 1128 | ifindex2ifname(rinfo->ifindex)); |
1129 | } | |
1130 | ||
1131 | ripng_event (RIPNG_TRIGGERED_UPDATE, 0); | |
718e3744 | 1132 | } |
1133 | } | |
1134 | } | |
1135 | ||
1136 | /* RIP routing information. */ | |
6ac29a51 | 1137 | static void |
718e3744 | 1138 | ripng_response_process (struct ripng_packet *packet, int size, |
1139 | struct sockaddr_in6 *from, struct interface *ifp, | |
1140 | int hoplimit) | |
1141 | { | |
1142 | caddr_t lim; | |
1143 | struct rte *rte; | |
1144 | struct ripng_nexthop nexthop; | |
1145 | ||
1146 | /* RFC2080 2.4.2 Response Messages: | |
1147 | The Response must be ignored if it is not from the RIPng port. */ | |
1148 | if (ntohs (from->sin6_port) != RIPNG_PORT_DEFAULT) | |
1149 | { | |
1150 | zlog_warn ("RIPng packet comes from non RIPng port %d from %s", | |
3a2ce6a1 | 1151 | ntohs (from->sin6_port), inet6_ntoa (from->sin6_addr)); |
a94434b6 | 1152 | ripng_peer_bad_packet (from); |
718e3744 | 1153 | return; |
1154 | } | |
1155 | ||
1156 | /* The datagram's IPv6 source address should be checked to see | |
1157 | whether the datagram is from a valid neighbor; the source of the | |
1158 | datagram must be a link-local address. */ | |
1159 | if (! IN6_IS_ADDR_LINKLOCAL(&from->sin6_addr)) | |
1160 | { | |
1161 | zlog_warn ("RIPng packet comes from non link local address %s", | |
3a2ce6a1 | 1162 | inet6_ntoa (from->sin6_addr)); |
a94434b6 | 1163 | ripng_peer_bad_packet (from); |
718e3744 | 1164 | return; |
1165 | } | |
1166 | ||
1167 | /* It is also worth checking to see whether the response is from one | |
1168 | of the router's own addresses. Interfaces on broadcast networks | |
1169 | may receive copies of their own multicasts immediately. If a | |
1170 | router processes its own output as new input, confusion is likely, | |
1171 | and such datagrams must be ignored. */ | |
1172 | if (ripng_lladdr_check (ifp, &from->sin6_addr)) | |
1173 | { | |
1174 | zlog_warn ("RIPng packet comes from my own link local address %s", | |
3a2ce6a1 | 1175 | inet6_ntoa (from->sin6_addr)); |
a94434b6 | 1176 | ripng_peer_bad_packet (from); |
718e3744 | 1177 | return; |
1178 | } | |
1179 | ||
1180 | /* As an additional check, periodic advertisements must have their | |
1181 | hop counts set to 255, and inbound, multicast packets sent from the | |
1182 | RIPng port (i.e. periodic advertisement or triggered update | |
1183 | packets) must be examined to ensure that the hop count is 255. */ | |
1184 | if (hoplimit >= 0 && hoplimit != 255) | |
1185 | { | |
1186 | zlog_warn ("RIPng packet comes with non 255 hop count %d from %s", | |
3a2ce6a1 | 1187 | hoplimit, inet6_ntoa (from->sin6_addr)); |
a94434b6 | 1188 | ripng_peer_bad_packet (from); |
718e3744 | 1189 | return; |
1190 | } | |
1191 | ||
a94434b6 | 1192 | /* Update RIPng peer. */ |
1193 | ripng_peer_update (from, packet->version); | |
1194 | ||
718e3744 | 1195 | /* Reset nexthop. */ |
1196 | memset (&nexthop, 0, sizeof (struct ripng_nexthop)); | |
1197 | nexthop.flag = RIPNG_NEXTHOP_UNSPEC; | |
1198 | ||
1199 | /* Set RTE pointer. */ | |
1200 | rte = packet->rte; | |
1201 | ||
1202 | for (lim = ((caddr_t) packet) + size; (caddr_t) rte < lim; rte++) | |
1203 | { | |
1204 | /* First of all, we have to check this RTE is next hop RTE or | |
1205 | not. Next hop RTE is completely different with normal RTE so | |
1206 | we need special treatment. */ | |
1207 | if (rte->metric == RIPNG_METRIC_NEXTHOP) | |
1208 | { | |
1209 | ripng_nexthop_rte (rte, from, &nexthop); | |
1210 | continue; | |
1211 | } | |
1212 | ||
1213 | /* RTE information validation. */ | |
1214 | ||
1215 | /* - is the destination prefix valid (e.g., not a multicast | |
1216 | prefix and not a link-local address) A link-local address | |
1217 | should never be present in an RTE. */ | |
1218 | if (IN6_IS_ADDR_MULTICAST (&rte->addr)) | |
1219 | { | |
1220 | zlog_warn ("Destination prefix is a multicast address %s/%d [%d]", | |
3a2ce6a1 | 1221 | inet6_ntoa (rte->addr), rte->prefixlen, rte->metric); |
a94434b6 | 1222 | ripng_peer_bad_route (from); |
718e3744 | 1223 | continue; |
1224 | } | |
1225 | if (IN6_IS_ADDR_LINKLOCAL (&rte->addr)) | |
1226 | { | |
1227 | zlog_warn ("Destination prefix is a link-local address %s/%d [%d]", | |
3a2ce6a1 | 1228 | inet6_ntoa (rte->addr), rte->prefixlen, rte->metric); |
a94434b6 | 1229 | ripng_peer_bad_route (from); |
718e3744 | 1230 | continue; |
1231 | } | |
1232 | if (IN6_IS_ADDR_LOOPBACK (&rte->addr)) | |
1233 | { | |
1234 | zlog_warn ("Destination prefix is a loopback address %s/%d [%d]", | |
3a2ce6a1 | 1235 | inet6_ntoa (rte->addr), rte->prefixlen, rte->metric); |
a94434b6 | 1236 | ripng_peer_bad_route (from); |
718e3744 | 1237 | continue; |
1238 | } | |
1239 | ||
1240 | /* - is the prefix length valid (i.e., between 0 and 128, | |
1241 | inclusive) */ | |
1242 | if (rte->prefixlen > 128) | |
1243 | { | |
1244 | zlog_warn ("Invalid prefix length %s/%d from %s%%%s", | |
3a2ce6a1 | 1245 | inet6_ntoa (rte->addr), rte->prefixlen, |
1246 | inet6_ntoa (from->sin6_addr), ifp->name); | |
a94434b6 | 1247 | ripng_peer_bad_route (from); |
718e3744 | 1248 | continue; |
1249 | } | |
1250 | ||
1251 | /* - is the metric valid (i.e., between 1 and 16, inclusive) */ | |
1252 | if (! (rte->metric >= 1 && rte->metric <= 16)) | |
1253 | { | |
1254 | zlog_warn ("Invalid metric %d from %s%%%s", rte->metric, | |
3a2ce6a1 | 1255 | inet6_ntoa (from->sin6_addr), ifp->name); |
a94434b6 | 1256 | ripng_peer_bad_route (from); |
718e3744 | 1257 | continue; |
1258 | } | |
1259 | ||
a94434b6 | 1260 | /* Vincent: XXX Should we compute the direclty reachable nexthop |
1261 | * for our RIPng network ? | |
1262 | **/ | |
718e3744 | 1263 | |
1264 | /* Routing table updates. */ | |
1265 | ripng_route_process (rte, from, &nexthop, ifp); | |
1266 | } | |
1267 | } | |
1268 | ||
1269 | /* Response to request message. */ | |
6ac29a51 | 1270 | static void |
718e3744 | 1271 | ripng_request_process (struct ripng_packet *packet,int size, |
1272 | struct sockaddr_in6 *from, struct interface *ifp) | |
1273 | { | |
1274 | caddr_t lim; | |
1275 | struct rte *rte; | |
1276 | struct prefix_ipv6 p; | |
1277 | struct route_node *rp; | |
1278 | struct ripng_info *rinfo; | |
1279 | struct ripng_interface *ri; | |
1280 | ||
a94434b6 | 1281 | /* Does not reponse to the requests on the loopback interfaces */ |
1282 | if (if_is_loopback (ifp)) | |
1283 | return; | |
1284 | ||
718e3744 | 1285 | /* Check RIPng process is enabled on this interface. */ |
1286 | ri = ifp->info; | |
1287 | if (! ri->running) | |
1288 | return; | |
1289 | ||
1290 | /* When passive interface is specified, suppress responses */ | |
1291 | if (ri->passive) | |
1292 | return; | |
1293 | ||
a94434b6 | 1294 | /* RIPng peer update. */ |
1295 | ripng_peer_update (from, packet->version); | |
1296 | ||
718e3744 | 1297 | lim = ((caddr_t) packet) + size; |
1298 | rte = packet->rte; | |
1299 | ||
1300 | /* The Request is processed entry by entry. If there are no | |
1301 | entries, no response is given. */ | |
1302 | if (lim == (caddr_t) rte) | |
1303 | return; | |
1304 | ||
1305 | /* There is one special case. If there is exactly one entry in the | |
1306 | request, and it has a destination prefix of zero, a prefix length | |
1307 | of zero, and a metric of infinity (i.e., 16), then this is a | |
1308 | request to send the entire routing table. In that case, a call | |
1309 | is made to the output process to send the routing table to the | |
1310 | requesting address/port. */ | |
1311 | if (lim == ((caddr_t) (rte + 1)) && | |
1312 | IN6_IS_ADDR_UNSPECIFIED (&rte->addr) && | |
1313 | rte->prefixlen == 0 && | |
1314 | rte->metric == RIPNG_METRIC_INFINITY) | |
1315 | { | |
1316 | /* All route with split horizon */ | |
a94434b6 | 1317 | ripng_output_process (ifp, from, ripng_all_route); |
718e3744 | 1318 | } |
1319 | else | |
1320 | { | |
1321 | /* Except for this special case, processing is quite simple. | |
1322 | Examine the list of RTEs in the Request one by one. For each | |
1323 | entry, look up the destination in the router's routing | |
1324 | database and, if there is a route, put that route's metric in | |
1325 | the metric field of the RTE. If there is no explicit route | |
1326 | to the specified destination, put infinity in the metric | |
1327 | field. Once all the entries have been filled in, change the | |
1328 | command from Request to Response and send the datagram back | |
1329 | to the requestor. */ | |
1330 | memset (&p, 0, sizeof (struct prefix_ipv6)); | |
1331 | p.family = AF_INET6; | |
1332 | ||
1333 | for (; ((caddr_t) rte) < lim; rte++) | |
1334 | { | |
1335 | p.prefix = rte->addr; | |
1336 | p.prefixlen = rte->prefixlen; | |
1337 | apply_mask_ipv6 (&p); | |
1338 | ||
1339 | rp = route_node_lookup (ripng->table, (struct prefix *) &p); | |
1340 | ||
1341 | if (rp) | |
1342 | { | |
c880b636 | 1343 | rinfo = listgetdata (listhead ((struct list *)rp->info)); |
718e3744 | 1344 | rte->metric = rinfo->metric; |
1345 | route_unlock_node (rp); | |
1346 | } | |
1347 | else | |
1348 | rte->metric = RIPNG_METRIC_INFINITY; | |
1349 | } | |
1350 | packet->command = RIPNG_RESPONSE; | |
1351 | ||
1352 | ripng_send_packet ((caddr_t) packet, size, from, ifp); | |
1353 | } | |
1354 | } | |
1355 | ||
1356 | /* First entry point of reading RIPng packet. */ | |
6ac29a51 | 1357 | static int |
718e3744 | 1358 | ripng_read (struct thread *thread) |
1359 | { | |
1360 | int len; | |
1361 | int sock; | |
1362 | struct sockaddr_in6 from; | |
1363 | struct ripng_packet *packet; | |
b892f1dd | 1364 | ifindex_t ifindex = 0; |
718e3744 | 1365 | struct interface *ifp; |
1366 | int hoplimit = -1; | |
1367 | ||
1368 | /* Check ripng is active and alive. */ | |
1369 | assert (ripng != NULL); | |
1370 | assert (ripng->sock >= 0); | |
1371 | ||
1372 | /* Fetch thread data and set read pointer to empty for event | |
1373 | managing. `sock' sould be same as ripng->sock. */ | |
1374 | sock = THREAD_FD (thread); | |
1375 | ripng->t_read = NULL; | |
1376 | ||
1377 | /* Add myself to the next event. */ | |
1378 | ripng_event (RIPNG_READ, sock); | |
1379 | ||
1380 | /* Read RIPng packet. */ | |
1381 | len = ripng_recv_packet (sock, STREAM_DATA (ripng->ibuf), | |
1382 | STREAM_SIZE (ripng->ibuf), &from, &ifindex, | |
1383 | &hoplimit); | |
1384 | if (len < 0) | |
1385 | { | |
6099b3b5 | 1386 | zlog_warn ("RIPng recvfrom failed: %s.", safe_strerror (errno)); |
718e3744 | 1387 | return len; |
1388 | } | |
1389 | ||
1390 | /* Check RTE boundary. RTE size (Packet length - RIPng header size | |
1391 | (4)) must be multiple size of one RTE size (20). */ | |
1392 | if (((len - 4) % 20) != 0) | |
1393 | { | |
1394 | zlog_warn ("RIPng invalid packet size %d from %s", len, | |
3a2ce6a1 | 1395 | inet6_ntoa (from.sin6_addr)); |
a94434b6 | 1396 | ripng_peer_bad_packet (&from); |
718e3744 | 1397 | return 0; |
1398 | } | |
1399 | ||
1400 | packet = (struct ripng_packet *) STREAM_DATA (ripng->ibuf); | |
1401 | ifp = if_lookup_by_index (ifindex); | |
1402 | ||
1403 | /* RIPng packet received. */ | |
1404 | if (IS_RIPNG_DEBUG_EVENT) | |
c6106812 | 1405 | zlog_debug ("RIPng packet received from %s port %d on %s", |
3a2ce6a1 | 1406 | inet6_ntoa (from.sin6_addr), ntohs (from.sin6_port), |
718e3744 | 1407 | ifp ? ifp->name : "unknown"); |
1408 | ||
1409 | /* Logging before packet checking. */ | |
1410 | if (IS_RIPNG_DEBUG_RECV) | |
1411 | ripng_packet_dump (packet, len, "RECV"); | |
1412 | ||
1413 | /* Packet comes from unknown interface. */ | |
1414 | if (ifp == NULL) | |
1415 | { | |
1416 | zlog_warn ("RIPng packet comes from unknown interface %d", ifindex); | |
1417 | return 0; | |
1418 | } | |
1419 | ||
1420 | /* Packet version mismatch checking. */ | |
1421 | if (packet->version != ripng->version) | |
1422 | { | |
1423 | zlog_warn ("RIPng packet version %d doesn't fit to my version %d", | |
1424 | packet->version, ripng->version); | |
a94434b6 | 1425 | ripng_peer_bad_packet (&from); |
718e3744 | 1426 | return 0; |
1427 | } | |
1428 | ||
1429 | /* Process RIPng packet. */ | |
1430 | switch (packet->command) | |
1431 | { | |
1432 | case RIPNG_REQUEST: | |
1433 | ripng_request_process (packet, len, &from, ifp); | |
1434 | break; | |
1435 | case RIPNG_RESPONSE: | |
1436 | ripng_response_process (packet, len, &from, ifp, hoplimit); | |
1437 | break; | |
1438 | default: | |
1439 | zlog_warn ("Invalid RIPng command %d", packet->command); | |
a94434b6 | 1440 | ripng_peer_bad_packet (&from); |
718e3744 | 1441 | break; |
1442 | } | |
1443 | return 0; | |
1444 | } | |
1445 | ||
1446 | /* Walk down the RIPng routing table then clear changed flag. */ | |
6ac29a51 PJ |
1447 | static void |
1448 | ripng_clear_changed_flag (void) | |
718e3744 | 1449 | { |
1450 | struct route_node *rp; | |
c880b636 FL |
1451 | struct ripng_info *rinfo = NULL; |
1452 | struct list *list = NULL; | |
1453 | struct listnode *listnode = NULL; | |
718e3744 | 1454 | |
1455 | for (rp = route_top (ripng->table); rp; rp = route_next (rp)) | |
c880b636 FL |
1456 | if ((list = rp->info) != NULL) |
1457 | for (ALL_LIST_ELEMENTS_RO (list, listnode, rinfo)) | |
1458 | { | |
1459 | UNSET_FLAG (rinfo->flags, RIPNG_RTF_CHANGED); | |
1460 | /* This flag can be set only on the first entry. */ | |
1461 | break; | |
1462 | } | |
718e3744 | 1463 | } |
1464 | ||
1465 | /* Regular update of RIPng route. Send all routing formation to RIPng | |
1466 | enabled interface. */ | |
6ac29a51 | 1467 | static int |
718e3744 | 1468 | ripng_update (struct thread *t) |
1469 | { | |
52dc7ee6 | 1470 | struct listnode *node; |
718e3744 | 1471 | struct interface *ifp; |
1472 | struct ripng_interface *ri; | |
1473 | ||
1474 | /* Clear update timer thread. */ | |
1475 | ripng->t_update = NULL; | |
1476 | ||
1477 | /* Logging update event. */ | |
1478 | if (IS_RIPNG_DEBUG_EVENT) | |
c6106812 | 1479 | zlog_debug ("RIPng update timer expired!"); |
718e3744 | 1480 | |
1481 | /* Supply routes to each interface. */ | |
b2d7c082 | 1482 | for (ALL_LIST_ELEMENTS_RO (vrf_iflist (VRF_DEFAULT), node, ifp)) |
718e3744 | 1483 | { |
718e3744 | 1484 | ri = ifp->info; |
1485 | ||
1486 | if (if_is_loopback (ifp) || ! if_is_up (ifp)) | |
1487 | continue; | |
1488 | ||
1489 | if (! ri->running) | |
1490 | continue; | |
1491 | ||
1492 | /* When passive interface is specified, suppress announce to the | |
1493 | interface. */ | |
1494 | if (ri->passive) | |
1495 | continue; | |
1496 | ||
1497 | #if RIPNG_ADVANCED | |
1498 | if (ri->ri_send == RIPNG_SEND_OFF) | |
1499 | { | |
1500 | if (IS_RIPNG_DEBUG_EVENT) | |
c6106812 | 1501 | zlog (NULL, LOG_DEBUG, |
718e3744 | 1502 | "[Event] RIPng send to if %d is suppressed by config", |
1503 | ifp->ifindex); | |
1504 | continue; | |
1505 | } | |
1506 | #endif /* RIPNG_ADVANCED */ | |
1507 | ||
a94434b6 | 1508 | ripng_output_process (ifp, NULL, ripng_all_route); |
718e3744 | 1509 | } |
1510 | ||
1511 | /* Triggered updates may be suppressed if a regular update is due by | |
1512 | the time the triggered update would be sent. */ | |
1513 | if (ripng->t_triggered_interval) | |
1514 | { | |
1515 | thread_cancel (ripng->t_triggered_interval); | |
1516 | ripng->t_triggered_interval = NULL; | |
1517 | } | |
1518 | ripng->trigger = 0; | |
1519 | ||
1520 | /* Reset flush event. */ | |
1521 | ripng_event (RIPNG_UPDATE_EVENT, 0); | |
1522 | ||
1523 | return 0; | |
1524 | } | |
1525 | ||
1526 | /* Triggered update interval timer. */ | |
6ac29a51 | 1527 | static int |
718e3744 | 1528 | ripng_triggered_interval (struct thread *t) |
1529 | { | |
1530 | ripng->t_triggered_interval = NULL; | |
1531 | ||
1532 | if (ripng->trigger) | |
1533 | { | |
1534 | ripng->trigger = 0; | |
1535 | ripng_triggered_update (t); | |
1536 | } | |
1537 | return 0; | |
1538 | } | |
1539 | ||
1540 | /* Execute triggered update. */ | |
1541 | int | |
1542 | ripng_triggered_update (struct thread *t) | |
1543 | { | |
52dc7ee6 | 1544 | struct listnode *node; |
718e3744 | 1545 | struct interface *ifp; |
1546 | struct ripng_interface *ri; | |
1547 | int interval; | |
1548 | ||
1549 | ripng->t_triggered_update = NULL; | |
1550 | ||
1551 | /* Cancel interval timer. */ | |
1552 | if (ripng->t_triggered_interval) | |
1553 | { | |
1554 | thread_cancel (ripng->t_triggered_interval); | |
1555 | ripng->t_triggered_interval = NULL; | |
1556 | } | |
1557 | ripng->trigger = 0; | |
1558 | ||
1559 | /* Logging triggered update. */ | |
1560 | if (IS_RIPNG_DEBUG_EVENT) | |
c6106812 | 1561 | zlog_debug ("RIPng triggered update!"); |
718e3744 | 1562 | |
1563 | /* Split Horizon processing is done when generating triggered | |
1564 | updates as well as normal updates (see section 2.6). */ | |
b2d7c082 | 1565 | for (ALL_LIST_ELEMENTS_RO (vrf_iflist (VRF_DEFAULT), node, ifp)) |
718e3744 | 1566 | { |
718e3744 | 1567 | ri = ifp->info; |
1568 | ||
1569 | if (if_is_loopback (ifp) || ! if_is_up (ifp)) | |
1570 | continue; | |
1571 | ||
1572 | if (! ri->running) | |
1573 | continue; | |
1574 | ||
1575 | /* When passive interface is specified, suppress announce to the | |
1576 | interface. */ | |
1577 | if (ri->passive) | |
1578 | continue; | |
1579 | ||
a94434b6 | 1580 | ripng_output_process (ifp, NULL, ripng_changed_route); |
718e3744 | 1581 | } |
1582 | ||
1583 | /* Once all of the triggered updates have been generated, the route | |
1584 | change flags should be cleared. */ | |
1585 | ripng_clear_changed_flag (); | |
1586 | ||
1587 | /* After a triggered update is sent, a timer should be set for a | |
1588 | random interval between 1 and 5 seconds. If other changes that | |
1589 | would trigger updates occur before the timer expires, a single | |
1590 | update is triggered when the timer expires. */ | |
1591 | interval = (random () % 5) + 1; | |
1592 | ||
1593 | ripng->t_triggered_interval = | |
1594 | thread_add_timer (master, ripng_triggered_interval, NULL, interval); | |
1595 | ||
1596 | return 0; | |
1597 | } | |
1598 | ||
1599 | /* Write routing table entry to the stream and return next index of | |
1600 | the routing table entry in the stream. */ | |
1601 | int | |
1602 | ripng_write_rte (int num, struct stream *s, struct prefix_ipv6 *p, | |
a94434b6 | 1603 | struct in6_addr *nexthop, u_int16_t tag, u_char metric) |
718e3744 | 1604 | { |
1605 | /* RIPng packet header. */ | |
1606 | if (num == 0) | |
1607 | { | |
1608 | stream_putc (s, RIPNG_RESPONSE); | |
1609 | stream_putc (s, RIPNG_V1); | |
1610 | stream_putw (s, 0); | |
1611 | } | |
1612 | ||
1613 | /* Write routing table entry. */ | |
a94434b6 | 1614 | if (!nexthop) |
c9e52be3 | 1615 | stream_write (s, (u_char *) &p->prefix, sizeof (struct in6_addr)); |
a94434b6 | 1616 | else |
c9e52be3 | 1617 | stream_write (s, (u_char *) nexthop, sizeof (struct in6_addr)); |
718e3744 | 1618 | stream_putw (s, tag); |
a94434b6 | 1619 | if (p) |
1620 | stream_putc (s, p->prefixlen); | |
1621 | else | |
1622 | stream_putc (s, 0); | |
718e3744 | 1623 | stream_putc (s, metric); |
1624 | ||
1625 | return ++num; | |
1626 | } | |
1627 | ||
1628 | /* Send RESPONSE message to specified destination. */ | |
1629 | void | |
1630 | ripng_output_process (struct interface *ifp, struct sockaddr_in6 *to, | |
a94434b6 | 1631 | int route_type) |
718e3744 | 1632 | { |
1633 | int ret; | |
718e3744 | 1634 | struct route_node *rp; |
1635 | struct ripng_info *rinfo; | |
1636 | struct ripng_interface *ri; | |
1637 | struct ripng_aggregate *aggregate; | |
1638 | struct prefix_ipv6 *p; | |
a94434b6 | 1639 | struct list * ripng_rte_list; |
c880b636 FL |
1640 | struct list *list = NULL; |
1641 | struct listnode *listnode = NULL; | |
718e3744 | 1642 | |
a94434b6 | 1643 | if (IS_RIPNG_DEBUG_EVENT) { |
1644 | if (to) | |
c6106812 | 1645 | zlog_debug ("RIPng update routes to neighbor %s", |
3a2ce6a1 | 1646 | inet6_ntoa(to->sin6_addr)); |
a94434b6 | 1647 | else |
c6106812 | 1648 | zlog_debug ("RIPng update routes on interface %s", ifp->name); |
a94434b6 | 1649 | } |
718e3744 | 1650 | |
718e3744 | 1651 | /* Get RIPng interface. */ |
1652 | ri = ifp->info; | |
a94434b6 | 1653 | |
1654 | ripng_rte_list = ripng_rte_new(); | |
1655 | ||
718e3744 | 1656 | for (rp = route_top (ripng->table); rp; rp = route_next (rp)) |
1657 | { | |
c880b636 FL |
1658 | if ((list = rp->info) != NULL && |
1659 | (rinfo = listgetdata (listhead (list))) != NULL && | |
1660 | rinfo->suppress == 0) | |
718e3744 | 1661 | { |
a94434b6 | 1662 | /* If no route-map are applied, the RTE will be these following |
1663 | * informations. | |
1664 | */ | |
718e3744 | 1665 | p = (struct prefix_ipv6 *) &rp->p; |
a94434b6 | 1666 | rinfo->metric_out = rinfo->metric; |
1667 | rinfo->tag_out = rinfo->tag; | |
1668 | memset(&rinfo->nexthop_out, 0, sizeof(rinfo->nexthop_out)); | |
1669 | /* In order to avoid some local loops, | |
1670 | * if the RIPng route has a nexthop via this interface, keep the nexthop, | |
1671 | * otherwise set it to 0. The nexthop should not be propagated | |
1672 | * beyond the local broadcast/multicast area in order | |
1673 | * to avoid an IGP multi-level recursive look-up. | |
1674 | */ | |
1675 | if (rinfo->ifindex == ifp->ifindex) | |
1676 | rinfo->nexthop_out = rinfo->nexthop; | |
1677 | ||
1678 | /* Apply output filters. */ | |
1679 | ret = ripng_outgoing_filter (p, ri); | |
1680 | if (ret < 0) | |
1681 | continue; | |
718e3744 | 1682 | |
1683 | /* Changed route only output. */ | |
1684 | if (route_type == ripng_changed_route && | |
1685 | (! (rinfo->flags & RIPNG_RTF_CHANGED))) | |
1686 | continue; | |
1687 | ||
1688 | /* Split horizon. */ | |
a94434b6 | 1689 | if (ri->split_horizon == RIPNG_SPLIT_HORIZON) |
1690 | { | |
1691 | /* We perform split horizon for RIPng routes. */ | |
c880b636 FL |
1692 | int suppress = 0; |
1693 | struct ripng_info *tmp_rinfo = NULL; | |
1694 | ||
1695 | for (ALL_LIST_ELEMENTS_RO (list, listnode, tmp_rinfo)) | |
1696 | if (tmp_rinfo->type == ZEBRA_ROUTE_RIPNG && | |
1697 | tmp_rinfo->ifindex == ifp->ifindex) | |
1698 | { | |
1699 | suppress = 1; | |
1700 | break; | |
1701 | } | |
1702 | if (suppress) | |
a94434b6 | 1703 | continue; |
1704 | } | |
718e3744 | 1705 | |
1706 | /* Preparation for route-map. */ | |
a94434b6 | 1707 | rinfo->metric_set = 0; |
1708 | /* nexthop_out, | |
1709 | * metric_out | |
1710 | * and tag_out are already initialized. | |
1711 | */ | |
718e3744 | 1712 | |
a94434b6 | 1713 | /* Interface route-map */ |
718e3744 | 1714 | if (ri->routemap[RIPNG_FILTER_OUT]) |
1715 | { | |
1716 | int ret; | |
718e3744 | 1717 | |
1718 | ret = route_map_apply (ri->routemap[RIPNG_FILTER_OUT], | |
1719 | (struct prefix *) p, RMAP_RIPNG, | |
a94434b6 | 1720 | rinfo); |
718e3744 | 1721 | |
1722 | if (ret == RMAP_DENYMATCH) | |
1723 | { | |
1724 | if (IS_RIPNG_DEBUG_PACKET) | |
c6106812 | 1725 | zlog_debug ("RIPng %s/%d is filtered by route-map out", |
3a2ce6a1 | 1726 | inet6_ntoa (p->prefix), p->prefixlen); |
a94434b6 | 1727 | continue; |
718e3744 | 1728 | } |
1729 | ||
718e3744 | 1730 | } |
1731 | ||
a94434b6 | 1732 | /* Redistribute route-map. */ |
1733 | if (ripng->route_map[rinfo->type].name) | |
718e3744 | 1734 | { |
a94434b6 | 1735 | int ret; |
1736 | ||
1737 | ret = route_map_apply (ripng->route_map[rinfo->type].map, | |
1738 | (struct prefix *) p, RMAP_RIPNG, | |
bb3a023e | 1739 | rinfo); |
a94434b6 | 1740 | |
1741 | if (ret == RMAP_DENYMATCH) | |
718e3744 | 1742 | { |
a94434b6 | 1743 | if (IS_RIPNG_DEBUG_PACKET) |
c6106812 | 1744 | zlog_debug ("RIPng %s/%d is filtered by route-map", |
3a2ce6a1 | 1745 | inet6_ntoa (p->prefix), p->prefixlen); |
a94434b6 | 1746 | continue; |
718e3744 | 1747 | } |
a94434b6 | 1748 | } |
718e3744 | 1749 | |
a94434b6 | 1750 | /* When the route-map does not set metric. */ |
1751 | if (! rinfo->metric_set) | |
1752 | { | |
1753 | /* If the redistribute metric is set. */ | |
1754 | if (ripng->route_map[rinfo->type].metric_config | |
1755 | && rinfo->metric != RIPNG_METRIC_INFINITY) | |
1756 | { | |
1757 | rinfo->metric_out = ripng->route_map[rinfo->type].metric; | |
1758 | } | |
1759 | else | |
718e3744 | 1760 | { |
a94434b6 | 1761 | /* If the route is not connected or localy generated |
1762 | one, use default-metric value */ | |
1763 | if (rinfo->type != ZEBRA_ROUTE_RIPNG | |
1764 | && rinfo->type != ZEBRA_ROUTE_CONNECT | |
718e3744 | 1765 | && rinfo->metric != RIPNG_METRIC_INFINITY) |
a94434b6 | 1766 | rinfo->metric_out = ripng->default_metric; |
718e3744 | 1767 | } |
1768 | } | |
1769 | ||
a94434b6 | 1770 | /* Apply offset-list */ |
1771 | if (rinfo->metric_out != RIPNG_METRIC_INFINITY) | |
1772 | ripng_offset_list_apply_out (p, ifp, &rinfo->metric_out); | |
1773 | ||
1774 | if (rinfo->metric_out > RIPNG_METRIC_INFINITY) | |
1775 | rinfo->metric_out = RIPNG_METRIC_INFINITY; | |
1776 | ||
1777 | /* Perform split-horizon with poisoned reverse | |
1778 | * for RIPng routes. | |
1779 | **/ | |
1780 | if (ri->split_horizon == RIPNG_SPLIT_HORIZON_POISONED_REVERSE) { | |
c880b636 FL |
1781 | struct ripng_info *tmp_rinfo = NULL; |
1782 | ||
1783 | for (ALL_LIST_ELEMENTS_RO (list, listnode, tmp_rinfo)) | |
1784 | if ((tmp_rinfo->type == ZEBRA_ROUTE_RIPNG) && | |
1785 | tmp_rinfo->ifindex == ifp->ifindex) | |
1786 | rinfo->metric_out = RIPNG_METRIC_INFINITY; | |
a94434b6 | 1787 | } |
1788 | ||
1789 | /* Add RTE to the list */ | |
1790 | ripng_rte_add(ripng_rte_list, p, rinfo, NULL); | |
718e3744 | 1791 | } |
a94434b6 | 1792 | |
1793 | /* Process the aggregated RTE entry */ | |
718e3744 | 1794 | if ((aggregate = rp->aggregate) != NULL && |
1795 | aggregate->count > 0 && | |
1796 | aggregate->suppress == 0) | |
1797 | { | |
a94434b6 | 1798 | /* If no route-map are applied, the RTE will be these following |
1799 | * informations. | |
1800 | */ | |
718e3744 | 1801 | p = (struct prefix_ipv6 *) &rp->p; |
a94434b6 | 1802 | aggregate->metric_set = 0; |
1803 | aggregate->metric_out = aggregate->metric; | |
1804 | aggregate->tag_out = aggregate->tag; | |
1805 | memset(&aggregate->nexthop_out, 0, sizeof(aggregate->nexthop_out)); | |
718e3744 | 1806 | |
1807 | /* Apply output filters.*/ | |
a94434b6 | 1808 | ret = ripng_outgoing_filter (p, ri); |
1809 | if (ret < 0) | |
1810 | continue; | |
718e3744 | 1811 | |
a94434b6 | 1812 | /* Interface route-map */ |
718e3744 | 1813 | if (ri->routemap[RIPNG_FILTER_OUT]) |
1814 | { | |
1815 | int ret; | |
1816 | struct ripng_info newinfo; | |
1817 | ||
a94434b6 | 1818 | /* let's cast the aggregate structure to ripng_info */ |
718e3744 | 1819 | memset (&newinfo, 0, sizeof (struct ripng_info)); |
a94434b6 | 1820 | /* the nexthop is :: */ |
1821 | newinfo.metric = aggregate->metric; | |
1822 | newinfo.metric_out = aggregate->metric_out; | |
1823 | newinfo.tag = aggregate->tag; | |
1824 | newinfo.tag_out = aggregate->tag_out; | |
718e3744 | 1825 | |
1826 | ret = route_map_apply (ri->routemap[RIPNG_FILTER_OUT], | |
1827 | (struct prefix *) p, RMAP_RIPNG, | |
1828 | &newinfo); | |
1829 | ||
1830 | if (ret == RMAP_DENYMATCH) | |
1831 | { | |
1832 | if (IS_RIPNG_DEBUG_PACKET) | |
c6106812 | 1833 | zlog_debug ("RIPng %s/%d is filtered by route-map out", |
3a2ce6a1 | 1834 | inet6_ntoa (p->prefix), p->prefixlen); |
a94434b6 | 1835 | continue; |
718e3744 | 1836 | } |
1837 | ||
a94434b6 | 1838 | aggregate->metric_out = newinfo.metric_out; |
1839 | aggregate->tag_out = newinfo.tag_out; | |
1840 | if (IN6_IS_ADDR_LINKLOCAL(&newinfo.nexthop_out)) | |
1841 | aggregate->nexthop_out = newinfo.nexthop_out; | |
718e3744 | 1842 | } |
1843 | ||
a94434b6 | 1844 | /* There is no redistribute routemap for the aggregated RTE */ |
1845 | ||
718e3744 | 1846 | /* Changed route only output. */ |
a94434b6 | 1847 | /* XXX, vincent, in order to increase time convergence, |
1848 | * it should be announced if a child has changed. | |
1849 | */ | |
718e3744 | 1850 | if (route_type == ripng_changed_route) |
1851 | continue; | |
1852 | ||
a94434b6 | 1853 | /* Apply offset-list */ |
1854 | if (aggregate->metric_out != RIPNG_METRIC_INFINITY) | |
1855 | ripng_offset_list_apply_out (p, ifp, &aggregate->metric_out); | |
1856 | ||
1857 | if (aggregate->metric_out > RIPNG_METRIC_INFINITY) | |
1858 | aggregate->metric_out = RIPNG_METRIC_INFINITY; | |
1859 | ||
1860 | /* Add RTE to the list */ | |
1861 | ripng_rte_add(ripng_rte_list, p, NULL, aggregate); | |
718e3744 | 1862 | } |
1863 | ||
1864 | } | |
718e3744 | 1865 | |
a94434b6 | 1866 | /* Flush the list */ |
1867 | ripng_rte_send(ripng_rte_list, ifp, to); | |
1868 | ripng_rte_free(ripng_rte_list); | |
718e3744 | 1869 | } |
1870 | ||
1871 | /* Create new RIPng instance and set it to global variable. */ | |
6ac29a51 PJ |
1872 | static int |
1873 | ripng_create (void) | |
718e3744 | 1874 | { |
1875 | /* ripng should be NULL. */ | |
1876 | assert (ripng == NULL); | |
1877 | ||
1878 | /* Allocaste RIPng instance. */ | |
393deb9b | 1879 | ripng = XCALLOC (MTYPE_RIPNG, sizeof (struct ripng)); |
718e3744 | 1880 | |
1881 | /* Default version and timer values. */ | |
1882 | ripng->version = RIPNG_V1; | |
1883 | ripng->update_time = RIPNG_UPDATE_TIMER_DEFAULT; | |
1884 | ripng->timeout_time = RIPNG_TIMEOUT_TIMER_DEFAULT; | |
1885 | ripng->garbage_time = RIPNG_GARBAGE_TIMER_DEFAULT; | |
1886 | ripng->default_metric = RIPNG_DEFAULT_METRIC_DEFAULT; | |
1887 | ||
1888 | /* Make buffer. */ | |
1889 | ripng->ibuf = stream_new (RIPNG_MAX_PACKET_SIZE * 5); | |
1890 | ripng->obuf = stream_new (RIPNG_MAX_PACKET_SIZE); | |
1891 | ||
1892 | /* Initialize RIPng routig table. */ | |
1893 | ripng->table = route_table_init (); | |
1894 | ripng->route = route_table_init (); | |
1895 | ripng->aggregate = route_table_init (); | |
1896 | ||
1897 | /* Make socket. */ | |
1898 | ripng->sock = ripng_make_socket (); | |
1899 | if (ripng->sock < 0) | |
1900 | return ripng->sock; | |
1901 | ||
1902 | /* Threads. */ | |
1903 | ripng_event (RIPNG_READ, ripng->sock); | |
1904 | ripng_event (RIPNG_UPDATE_EVENT, 1); | |
1905 | ||
1906 | return 0; | |
1907 | } | |
1908 | ||
a94434b6 | 1909 | /* Send RIPng request to the interface. */ |
718e3744 | 1910 | int |
1911 | ripng_request (struct interface *ifp) | |
1912 | { | |
1913 | struct rte *rte; | |
1914 | struct ripng_packet ripng_packet; | |
1915 | ||
a94434b6 | 1916 | /* In default ripd doesn't send RIP_REQUEST to the loopback interface. */ |
1917 | if (if_is_loopback(ifp)) | |
1918 | return 0; | |
1919 | ||
1920 | /* If interface is down, don't send RIP packet. */ | |
1921 | if (! if_is_up (ifp)) | |
1922 | return 0; | |
1923 | ||
718e3744 | 1924 | if (IS_RIPNG_DEBUG_EVENT) |
c6106812 | 1925 | zlog_debug ("RIPng send request to %s", ifp->name); |
718e3744 | 1926 | |
1927 | memset (&ripng_packet, 0, sizeof (ripng_packet)); | |
1928 | ripng_packet.command = RIPNG_REQUEST; | |
1929 | ripng_packet.version = RIPNG_V1; | |
1930 | rte = ripng_packet.rte; | |
1931 | rte->metric = RIPNG_METRIC_INFINITY; | |
1932 | ||
1933 | return ripng_send_packet ((caddr_t) &ripng_packet, sizeof (ripng_packet), | |
1934 | NULL, ifp); | |
1935 | } | |
1936 | ||
6b0655a2 | 1937 | |
6ac29a51 | 1938 | static int |
718e3744 | 1939 | ripng_update_jitter (int time) |
1940 | { | |
b06fd125 | 1941 | return ((random () % (time + 1)) - (time / 2)); |
718e3744 | 1942 | } |
1943 | ||
1944 | void | |
1945 | ripng_event (enum ripng_event event, int sock) | |
1946 | { | |
718e3744 | 1947 | int jitter = 0; |
1948 | ||
1949 | switch (event) | |
1950 | { | |
1951 | case RIPNG_READ: | |
1952 | if (!ripng->t_read) | |
1953 | ripng->t_read = thread_add_read (master, ripng_read, NULL, sock); | |
1954 | break; | |
1955 | case RIPNG_UPDATE_EVENT: | |
1956 | if (ripng->t_update) | |
1957 | { | |
1958 | thread_cancel (ripng->t_update); | |
1959 | ripng->t_update = NULL; | |
1960 | } | |
1961 | /* Update timer jitter. */ | |
1962 | jitter = ripng_update_jitter (ripng->update_time); | |
1963 | ||
1964 | ripng->t_update = | |
1965 | thread_add_timer (master, ripng_update, NULL, | |
1966 | sock ? 2 : ripng->update_time + jitter); | |
1967 | break; | |
1968 | case RIPNG_TRIGGERED_UPDATE: | |
1969 | if (ripng->t_triggered_interval) | |
1970 | ripng->trigger = 1; | |
1971 | else if (! ripng->t_triggered_update) | |
1972 | ripng->t_triggered_update = | |
1973 | thread_add_event (master, ripng_triggered_update, NULL, 0); | |
1974 | break; | |
1975 | default: | |
1976 | break; | |
1977 | } | |
1978 | } | |
6b0655a2 | 1979 | |
718e3744 | 1980 | |
718e3744 | 1981 | /* Print out routes update time. */ |
1982 | static void | |
1983 | ripng_vty_out_uptime (struct vty *vty, struct ripng_info *rinfo) | |
1984 | { | |
718e3744 | 1985 | time_t clock; |
1986 | struct tm *tm; | |
1987 | #define TIME_BUF 25 | |
1988 | char timebuf [TIME_BUF]; | |
1989 | struct thread *thread; | |
1990 | ||
718e3744 | 1991 | if ((thread = rinfo->t_timeout) != NULL) |
1992 | { | |
6dfa827b | 1993 | clock = thread_timer_remain_second (thread); |
718e3744 | 1994 | tm = gmtime (&clock); |
1995 | strftime (timebuf, TIME_BUF, "%M:%S", tm); | |
1996 | vty_out (vty, "%5s", timebuf); | |
1997 | } | |
1998 | else if ((thread = rinfo->t_garbage_collect) != NULL) | |
1999 | { | |
6dfa827b | 2000 | clock = thread_timer_remain_second (thread); |
718e3744 | 2001 | tm = gmtime (&clock); |
2002 | strftime (timebuf, TIME_BUF, "%M:%S", tm); | |
2003 | vty_out (vty, "%5s", timebuf); | |
2004 | } | |
2005 | } | |
2006 | ||
6ac29a51 | 2007 | static char * |
a94434b6 | 2008 | ripng_route_subtype_print (struct ripng_info *rinfo) |
2009 | { | |
2010 | static char str[3]; | |
2011 | memset(str, 0, 3); | |
2012 | ||
2013 | if (rinfo->suppress) | |
2014 | strcat(str, "S"); | |
2015 | ||
2016 | switch (rinfo->sub_type) | |
2017 | { | |
2018 | case RIPNG_ROUTE_RTE: | |
2019 | strcat(str, "n"); | |
2020 | break; | |
2021 | case RIPNG_ROUTE_STATIC: | |
2022 | strcat(str, "s"); | |
2023 | break; | |
2024 | case RIPNG_ROUTE_DEFAULT: | |
2025 | strcat(str, "d"); | |
2026 | break; | |
2027 | case RIPNG_ROUTE_REDISTRIBUTE: | |
2028 | strcat(str, "r"); | |
2029 | break; | |
2030 | case RIPNG_ROUTE_INTERFACE: | |
2031 | strcat(str, "i"); | |
2032 | break; | |
2033 | default: | |
2034 | strcat(str, "?"); | |
2035 | break; | |
2036 | } | |
2037 | ||
2038 | return str; | |
2039 | } | |
2040 | ||
718e3744 | 2041 | DEFUN (show_ipv6_ripng, |
2042 | show_ipv6_ripng_cmd, | |
2043 | "show ipv6 ripng", | |
2044 | SHOW_STR | |
8d0f15fd | 2045 | IPV6_STR |
718e3744 | 2046 | "Show RIPng routes\n") |
2047 | { | |
2048 | struct route_node *rp; | |
2049 | struct ripng_info *rinfo; | |
2050 | struct ripng_aggregate *aggregate; | |
2051 | struct prefix_ipv6 *p; | |
c880b636 FL |
2052 | struct list *list = NULL; |
2053 | struct listnode *listnode = NULL; | |
718e3744 | 2054 | int len; |
2055 | ||
a94434b6 | 2056 | if (! ripng) |
2057 | return CMD_SUCCESS; | |
2058 | ||
718e3744 | 2059 | /* Header of display. */ |
a94434b6 | 2060 | vty_out (vty, "Codes: R - RIPng, C - connected, S - Static, O - OSPF, B - BGP%s" |
2061 | "Sub-codes:%s" | |
2062 | " (n) - normal, (s) - static, (d) - default, (r) - redistribute,%s" | |
2063 | " (i) - interface, (a/S) - aggregated/Suppressed%s%s" | |
2064 | " Network Next Hop Via Metric Tag Time%s", | |
2065 | VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE, | |
718e3744 | 2066 | VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE); |
2067 | ||
2068 | for (rp = route_top (ripng->table); rp; rp = route_next (rp)) | |
2069 | { | |
2070 | if ((aggregate = rp->aggregate) != NULL) | |
2071 | { | |
2072 | p = (struct prefix_ipv6 *) &rp->p; | |
2073 | ||
2074 | #ifdef DEBUG | |
a94434b6 | 2075 | len = vty_out (vty, "R(a) %d/%d %s/%d ", |
718e3744 | 2076 | aggregate->count, aggregate->suppress, |
3a2ce6a1 | 2077 | inet6_ntoa (p->prefix), p->prefixlen); |
718e3744 | 2078 | #else |
a94434b6 | 2079 | len = vty_out (vty, "R(a) %s/%d ", |
3a2ce6a1 | 2080 | inet6_ntoa (p->prefix), p->prefixlen); |
718e3744 | 2081 | #endif /* DEBUG */ |
a94434b6 | 2082 | vty_out (vty, "%s", VTY_NEWLINE); |
2083 | vty_out (vty, "%*s", 18, " "); | |
718e3744 | 2084 | |
a94434b6 | 2085 | vty_out (vty, "%*s", 28, " "); |
2086 | vty_out (vty, "self %2d %3d%s", aggregate->metric, | |
718e3744 | 2087 | aggregate->tag, |
2088 | VTY_NEWLINE); | |
2089 | } | |
2090 | ||
c880b636 FL |
2091 | if ((list = rp->info) != NULL) |
2092 | for (ALL_LIST_ELEMENTS_RO (list, listnode, rinfo)) | |
718e3744 | 2093 | { |
2094 | p = (struct prefix_ipv6 *) &rp->p; | |
2095 | ||
2096 | #ifdef DEBUG | |
f52d13cb | 2097 | len = vty_out (vty, "%c(%s) 0/%d %s/%d ", |
2098 | zebra_route_char(rinfo->type), | |
a94434b6 | 2099 | ripng_route_subtype_print(rinfo), |
718e3744 | 2100 | rinfo->suppress, |
3a2ce6a1 | 2101 | inet6_ntoa (p->prefix), p->prefixlen); |
718e3744 | 2102 | #else |
f52d13cb | 2103 | len = vty_out (vty, "%c(%s) %s/%d ", |
2104 | zebra_route_char(rinfo->type), | |
a94434b6 | 2105 | ripng_route_subtype_print(rinfo), |
3a2ce6a1 | 2106 | inet6_ntoa (p->prefix), p->prefixlen); |
718e3744 | 2107 | #endif /* DEBUG */ |
a94434b6 | 2108 | vty_out (vty, "%s", VTY_NEWLINE); |
2109 | vty_out (vty, "%*s", 18, " "); | |
3a2ce6a1 | 2110 | len = vty_out (vty, "%s", inet6_ntoa (rinfo->nexthop)); |
a94434b6 | 2111 | |
2112 | len = 28 - len; | |
718e3744 | 2113 | if (len > 0) |
a94434b6 | 2114 | len = vty_out (vty, "%*s", len, " "); |
718e3744 | 2115 | |
a94434b6 | 2116 | /* from */ |
2117 | if ((rinfo->type == ZEBRA_ROUTE_RIPNG) && | |
2118 | (rinfo->sub_type == RIPNG_ROUTE_RTE)) | |
2119 | { | |
2120 | len = vty_out (vty, "%s", ifindex2ifname(rinfo->ifindex)); | |
2121 | } else if (rinfo->metric == RIPNG_METRIC_INFINITY) | |
2122 | { | |
2123 | len = vty_out (vty, "kill"); | |
2124 | } else | |
2125 | len = vty_out (vty, "self"); | |
718e3744 | 2126 | |
a94434b6 | 2127 | len = 9 - len; |
718e3744 | 2128 | if (len > 0) |
2129 | vty_out (vty, "%*s", len, " "); | |
2130 | ||
a94434b6 | 2131 | vty_out (vty, " %2d %3d ", |
2132 | rinfo->metric, rinfo->tag); | |
718e3744 | 2133 | |
a94434b6 | 2134 | /* time */ |
2135 | if ((rinfo->type == ZEBRA_ROUTE_RIPNG) && | |
2136 | (rinfo->sub_type == RIPNG_ROUTE_RTE)) | |
2137 | { | |
2138 | /* RTE from remote RIP routers */ | |
718e3744 | 2139 | ripng_vty_out_uptime (vty, rinfo); |
a94434b6 | 2140 | } else if (rinfo->metric == RIPNG_METRIC_INFINITY) |
2141 | { | |
2142 | /* poisonous reversed routes (gc) */ | |
2143 | ripng_vty_out_uptime (vty, rinfo); | |
2144 | } | |
718e3744 | 2145 | |
2146 | vty_out (vty, "%s", VTY_NEWLINE); | |
2147 | } | |
2148 | } | |
2149 | ||
2150 | return CMD_SUCCESS; | |
2151 | } | |
2152 | ||
a94434b6 | 2153 | DEFUN (show_ipv6_ripng_status, |
2154 | show_ipv6_ripng_status_cmd, | |
2155 | "show ipv6 ripng status", | |
2156 | SHOW_STR | |
8d0f15fd | 2157 | IPV6_STR |
a94434b6 | 2158 | "Show RIPng routes\n" |
2159 | "IPv6 routing protocol process parameters and statistics\n") | |
2160 | { | |
52dc7ee6 | 2161 | struct listnode *node; |
1eb8ef25 | 2162 | struct interface *ifp; |
a94434b6 | 2163 | |
2164 | if (! ripng) | |
2165 | return CMD_SUCCESS; | |
2166 | ||
2167 | vty_out (vty, "Routing Protocol is \"RIPng\"%s", VTY_NEWLINE); | |
2168 | vty_out (vty, " Sending updates every %ld seconds with +/-50%%,", | |
2169 | ripng->update_time); | |
6dfa827b VJ |
2170 | vty_out (vty, " next due in %lu seconds%s", |
2171 | thread_timer_remain_second (ripng->t_update), | |
a94434b6 | 2172 | VTY_NEWLINE); |
2173 | vty_out (vty, " Timeout after %ld seconds,", ripng->timeout_time); | |
2174 | vty_out (vty, " garbage collect after %ld seconds%s", ripng->garbage_time, | |
2175 | VTY_NEWLINE); | |
2176 | ||
2177 | /* Filtering status show. */ | |
2178 | config_show_distribute (vty); | |
2179 | ||
2180 | /* Default metric information. */ | |
2181 | vty_out (vty, " Default redistribution metric is %d%s", | |
2182 | ripng->default_metric, VTY_NEWLINE); | |
2183 | ||
2184 | /* Redistribute information. */ | |
2185 | vty_out (vty, " Redistributing:"); | |
2186 | ripng_redistribute_write (vty, 0); | |
2187 | vty_out (vty, "%s", VTY_NEWLINE); | |
2188 | ||
2189 | vty_out (vty, " Default version control: send version %d,", ripng->version); | |
2190 | vty_out (vty, " receive version %d %s", ripng->version, | |
2191 | VTY_NEWLINE); | |
2192 | ||
2193 | vty_out (vty, " Interface Send Recv%s", VTY_NEWLINE); | |
2194 | ||
b2d7c082 | 2195 | for (ALL_LIST_ELEMENTS_RO (vrf_iflist (VRF_DEFAULT), node, ifp)) |
a94434b6 | 2196 | { |
2197 | struct ripng_interface *ri; | |
1eb8ef25 | 2198 | |
a94434b6 | 2199 | ri = ifp->info; |
2200 | ||
2201 | if (ri->enable_network || ri->enable_interface) | |
2202 | { | |
2203 | ||
2204 | vty_out (vty, " %-17s%-3d %-3d%s", ifp->name, | |
2205 | ripng->version, | |
2206 | ripng->version, | |
2207 | VTY_NEWLINE); | |
2208 | } | |
2209 | } | |
2210 | ||
2211 | vty_out (vty, " Routing for Networks:%s", VTY_NEWLINE); | |
2212 | ripng_network_write (vty, 0); | |
2213 | ||
2214 | vty_out (vty, " Routing Information Sources:%s", VTY_NEWLINE); | |
2215 | vty_out (vty, " Gateway BadPackets BadRoutes Distance Last Update%s", VTY_NEWLINE); | |
2216 | ripng_peer_display (vty); | |
2217 | ||
2218 | return CMD_SUCCESS; | |
2219 | } | |
2220 | ||
718e3744 | 2221 | DEFUN (router_ripng, |
2222 | router_ripng_cmd, | |
2223 | "router ripng", | |
2224 | "Enable a routing process\n" | |
2225 | "Make RIPng instance command\n") | |
2226 | { | |
2227 | int ret; | |
2228 | ||
2229 | vty->node = RIPNG_NODE; | |
2230 | ||
2231 | if (!ripng) | |
2232 | { | |
2233 | ret = ripng_create (); | |
2234 | ||
2235 | /* Notice to user we couldn't create RIPng. */ | |
2236 | if (ret < 0) | |
2237 | { | |
2238 | zlog_warn ("can't create RIPng"); | |
2239 | return CMD_WARNING; | |
2240 | } | |
2241 | } | |
2242 | ||
2243 | return CMD_SUCCESS; | |
2244 | } | |
2245 | ||
a94434b6 | 2246 | DEFUN (no_router_ripng, |
2247 | no_router_ripng_cmd, | |
2248 | "no router ripng", | |
2249 | NO_STR | |
2250 | "Enable a routing process\n" | |
2251 | "Make RIPng instance command\n") | |
2252 | { | |
2253 | if(ripng) | |
2254 | ripng_clean(); | |
2255 | return CMD_SUCCESS; | |
2256 | } | |
2257 | ||
718e3744 | 2258 | DEFUN (ripng_route, |
2259 | ripng_route_cmd, | |
2260 | "route IPV6ADDR", | |
2261 | "Static route setup\n" | |
2262 | "Set static RIPng route announcement\n") | |
2263 | { | |
ab34a28a | 2264 | int idx_ipv6addr = 1; |
718e3744 | 2265 | int ret; |
2266 | struct prefix_ipv6 p; | |
2267 | struct route_node *rp; | |
2268 | ||
ab34a28a | 2269 | ret = str2prefix_ipv6 (argv[idx_ipv6addr]->arg, (struct prefix_ipv6 *)&p); |
718e3744 | 2270 | if (ret <= 0) |
2271 | { | |
2272 | vty_out (vty, "Malformed address%s", VTY_NEWLINE); | |
2273 | return CMD_WARNING; | |
2274 | } | |
2275 | apply_mask_ipv6 (&p); | |
2276 | ||
2277 | rp = route_node_get (ripng->route, (struct prefix *) &p); | |
2278 | if (rp->info) | |
2279 | { | |
2280 | vty_out (vty, "There is already same static route.%s", VTY_NEWLINE); | |
2281 | route_unlock_node (rp); | |
2282 | return CMD_WARNING; | |
2283 | } | |
2284 | rp->info = (void *)1; | |
2285 | ||
a94434b6 | 2286 | ripng_redistribute_add (ZEBRA_ROUTE_RIPNG, RIPNG_ROUTE_STATIC, &p, 0, NULL); |
718e3744 | 2287 | |
2288 | return CMD_SUCCESS; | |
2289 | } | |
2290 | ||
2291 | DEFUN (no_ripng_route, | |
2292 | no_ripng_route_cmd, | |
2293 | "no route IPV6ADDR", | |
2294 | NO_STR | |
2295 | "Static route setup\n" | |
2296 | "Delete static RIPng route announcement\n") | |
2297 | { | |
ab34a28a | 2298 | int idx_ipv6addr = 2; |
718e3744 | 2299 | int ret; |
2300 | struct prefix_ipv6 p; | |
2301 | struct route_node *rp; | |
2302 | ||
ab34a28a | 2303 | ret = str2prefix_ipv6 (argv[idx_ipv6addr]->arg, (struct prefix_ipv6 *)&p); |
718e3744 | 2304 | if (ret <= 0) |
2305 | { | |
2306 | vty_out (vty, "Malformed address%s", VTY_NEWLINE); | |
2307 | return CMD_WARNING; | |
2308 | } | |
2309 | apply_mask_ipv6 (&p); | |
2310 | ||
2311 | rp = route_node_lookup (ripng->route, (struct prefix *) &p); | |
2312 | if (! rp) | |
2313 | { | |
2314 | vty_out (vty, "Can't find static route.%s", VTY_NEWLINE); | |
2315 | return CMD_WARNING; | |
2316 | } | |
2317 | ||
2318 | ripng_redistribute_delete (ZEBRA_ROUTE_RIPNG, RIPNG_ROUTE_STATIC, &p, 0); | |
2319 | route_unlock_node (rp); | |
2320 | ||
2321 | rp->info = NULL; | |
2322 | route_unlock_node (rp); | |
2323 | ||
2324 | return CMD_SUCCESS; | |
2325 | } | |
2326 | ||
2327 | DEFUN (ripng_aggregate_address, | |
2328 | ripng_aggregate_address_cmd, | |
2329 | "aggregate-address X:X::X:X/M", | |
2330 | "Set aggregate RIPng route announcement\n" | |
2331 | "Aggregate network\n") | |
2332 | { | |
ab34a28a | 2333 | int idx_ipv6_prefixlen = 1; |
718e3744 | 2334 | int ret; |
2335 | struct prefix p; | |
2336 | struct route_node *node; | |
2337 | ||
ab34a28a | 2338 | ret = str2prefix_ipv6 (argv[idx_ipv6_prefixlen]->arg, (struct prefix_ipv6 *)&p); |
718e3744 | 2339 | if (ret <= 0) |
2340 | { | |
2341 | vty_out (vty, "Malformed address%s", VTY_NEWLINE); | |
2342 | return CMD_WARNING; | |
2343 | } | |
2344 | ||
2345 | /* Check aggregate alredy exist or not. */ | |
2346 | node = route_node_get (ripng->aggregate, &p); | |
2347 | if (node->info) | |
2348 | { | |
2349 | vty_out (vty, "There is already same aggregate route.%s", VTY_NEWLINE); | |
2350 | route_unlock_node (node); | |
2351 | return CMD_WARNING; | |
2352 | } | |
2353 | node->info = (void *)1; | |
2354 | ||
2355 | ripng_aggregate_add (&p); | |
2356 | ||
2357 | return CMD_SUCCESS; | |
2358 | } | |
2359 | ||
2360 | DEFUN (no_ripng_aggregate_address, | |
2361 | no_ripng_aggregate_address_cmd, | |
2362 | "no aggregate-address X:X::X:X/M", | |
2363 | NO_STR | |
2364 | "Delete aggregate RIPng route announcement\n" | |
2365 | "Aggregate network") | |
2366 | { | |
ab34a28a | 2367 | int idx_ipv6_prefixlen = 2; |
718e3744 | 2368 | int ret; |
2369 | struct prefix p; | |
2370 | struct route_node *rn; | |
2371 | ||
ab34a28a | 2372 | ret = str2prefix_ipv6 (argv[idx_ipv6_prefixlen]->arg, (struct prefix_ipv6 *) &p); |
718e3744 | 2373 | if (ret <= 0) |
2374 | { | |
2375 | vty_out (vty, "Malformed address%s", VTY_NEWLINE); | |
2376 | return CMD_WARNING; | |
2377 | } | |
2378 | ||
2379 | rn = route_node_lookup (ripng->aggregate, &p); | |
2380 | if (! rn) | |
2381 | { | |
2382 | vty_out (vty, "Can't find aggregate route.%s", VTY_NEWLINE); | |
2383 | return CMD_WARNING; | |
2384 | } | |
2385 | route_unlock_node (rn); | |
2386 | rn->info = NULL; | |
2387 | route_unlock_node (rn); | |
2388 | ||
2389 | ripng_aggregate_delete (&p); | |
2390 | ||
2391 | return CMD_SUCCESS; | |
2392 | } | |
2393 | ||
2394 | DEFUN (ripng_default_metric, | |
2395 | ripng_default_metric_cmd, | |
6147e2c6 | 2396 | "default-metric (1-16)", |
718e3744 | 2397 | "Set a metric of redistribute routes\n" |
2398 | "Default metric\n") | |
2399 | { | |
ab34a28a | 2400 | int idx_number = 1; |
718e3744 | 2401 | if (ripng) |
2402 | { | |
ab34a28a | 2403 | ripng->default_metric = atoi (argv[idx_number]->arg); |
718e3744 | 2404 | } |
2405 | return CMD_SUCCESS; | |
2406 | } | |
2407 | ||
f412b39a DW |
2408 | /* |
2409 | * CHECK ME - The following ALIASes need to be implemented in this DEFUN | |
2410 | * "no default-metric <1-16>", | |
2411 | * NO_STR | |
2412 | * "Set a metric of redistribute routes\n" | |
2413 | * "Default metric\n" | |
2414 | * | |
2415 | */ | |
718e3744 | 2416 | DEFUN (no_ripng_default_metric, |
2417 | no_ripng_default_metric_cmd, | |
2418 | "no default-metric", | |
2419 | NO_STR | |
2420 | "Set a metric of redistribute routes\n" | |
2421 | "Default metric\n") | |
2422 | { | |
2423 | if (ripng) | |
2424 | { | |
2425 | ripng->default_metric = RIPNG_DEFAULT_METRIC_DEFAULT; | |
2426 | } | |
2427 | return CMD_SUCCESS; | |
2428 | } | |
2429 | ||
718e3744 | 2430 | |
2431 | #if 0 | |
2432 | /* RIPng update timer setup. */ | |
2433 | DEFUN (ripng_update_timer, | |
2434 | ripng_update_timer_cmd, | |
2435 | "update-timer SECOND", | |
2436 | "Set RIPng update timer in seconds\n" | |
2437 | "Seconds\n") | |
2438 | { | |
2439 | unsigned long update; | |
2440 | char *endptr = NULL; | |
2441 | ||
2442 | update = strtoul (argv[0], &endptr, 10); | |
2443 | if (update == ULONG_MAX || *endptr != '\0') | |
2444 | { | |
2445 | vty_out (vty, "update timer value error%s", VTY_NEWLINE); | |
2446 | return CMD_WARNING; | |
2447 | } | |
2448 | ||
2449 | ripng->update_time = update; | |
2450 | ||
2451 | ripng_event (RIPNG_UPDATE_EVENT, 0); | |
2452 | return CMD_SUCCESS; | |
2453 | } | |
2454 | ||
2455 | DEFUN (no_ripng_update_timer, | |
2456 | no_ripng_update_timer_cmd, | |
2457 | "no update-timer SECOND", | |
2458 | NO_STR | |
2459 | "Unset RIPng update timer in seconds\n" | |
2460 | "Seconds\n") | |
2461 | { | |
2462 | ripng->update_time = RIPNG_UPDATE_TIMER_DEFAULT; | |
2463 | ripng_event (RIPNG_UPDATE_EVENT, 0); | |
2464 | return CMD_SUCCESS; | |
2465 | } | |
2466 | ||
2467 | /* RIPng timeout timer setup. */ | |
2468 | DEFUN (ripng_timeout_timer, | |
2469 | ripng_timeout_timer_cmd, | |
2470 | "timeout-timer SECOND", | |
2471 | "Set RIPng timeout timer in seconds\n" | |
2472 | "Seconds\n") | |
2473 | { | |
2474 | unsigned long timeout; | |
2475 | char *endptr = NULL; | |
2476 | ||
2477 | timeout = strtoul (argv[0], &endptr, 10); | |
2478 | if (timeout == ULONG_MAX || *endptr != '\0') | |
2479 | { | |
2480 | vty_out (vty, "timeout timer value error%s", VTY_NEWLINE); | |
2481 | return CMD_WARNING; | |
2482 | } | |
2483 | ||
2484 | ripng->timeout_time = timeout; | |
2485 | ||
2486 | return CMD_SUCCESS; | |
2487 | } | |
2488 | ||
2489 | DEFUN (no_ripng_timeout_timer, | |
2490 | no_ripng_timeout_timer_cmd, | |
2491 | "no timeout-timer SECOND", | |
2492 | NO_STR | |
2493 | "Unset RIPng timeout timer in seconds\n" | |
2494 | "Seconds\n") | |
2495 | { | |
2496 | ripng->timeout_time = RIPNG_TIMEOUT_TIMER_DEFAULT; | |
2497 | return CMD_SUCCESS; | |
2498 | } | |
2499 | ||
2500 | /* RIPng garbage timer setup. */ | |
2501 | DEFUN (ripng_garbage_timer, | |
2502 | ripng_garbage_timer_cmd, | |
2503 | "garbage-timer SECOND", | |
2504 | "Set RIPng garbage timer in seconds\n" | |
2505 | "Seconds\n") | |
2506 | { | |
2507 | unsigned long garbage; | |
2508 | char *endptr = NULL; | |
2509 | ||
2510 | garbage = strtoul (argv[0], &endptr, 10); | |
2511 | if (garbage == ULONG_MAX || *endptr != '\0') | |
2512 | { | |
2513 | vty_out (vty, "garbage timer value error%s", VTY_NEWLINE); | |
2514 | return CMD_WARNING; | |
2515 | } | |
2516 | ||
2517 | ripng->garbage_time = garbage; | |
2518 | ||
2519 | return CMD_SUCCESS; | |
2520 | } | |
2521 | ||
2522 | DEFUN (no_ripng_garbage_timer, | |
2523 | no_ripng_garbage_timer_cmd, | |
2524 | "no garbage-timer SECOND", | |
2525 | NO_STR | |
2526 | "Unset RIPng garbage timer in seconds\n" | |
2527 | "Seconds\n") | |
2528 | { | |
2529 | ripng->garbage_time = RIPNG_GARBAGE_TIMER_DEFAULT; | |
2530 | return CMD_SUCCESS; | |
2531 | } | |
2532 | #endif /* 0 */ | |
2533 | ||
2534 | DEFUN (ripng_timers, | |
2535 | ripng_timers_cmd, | |
6147e2c6 | 2536 | "timers basic (0-65535) (0-65535) (0-65535)", |
718e3744 | 2537 | "RIPng timers setup\n" |
2538 | "Basic timer\n" | |
2539 | "Routing table update timer value in second. Default is 30.\n" | |
2540 | "Routing information timeout timer. Default is 180.\n" | |
2541 | "Garbage collection timer. Default is 120.\n") | |
2542 | { | |
ab34a28a DW |
2543 | int idx_number = 2; |
2544 | int idx_number_2 = 3; | |
2545 | int idx_number_3 = 4; | |
718e3744 | 2546 | unsigned long update; |
2547 | unsigned long timeout; | |
2548 | unsigned long garbage; | |
718e3744 | 2549 | |
ab34a28a DW |
2550 | VTY_GET_INTEGER_RANGE("update timer", update, argv[idx_number]->arg, 0, 65535); |
2551 | VTY_GET_INTEGER_RANGE("timeout timer", timeout, argv[idx_number_2]->arg, 0, 65535); | |
2552 | VTY_GET_INTEGER_RANGE("garbage timer", garbage, argv[idx_number_3]->arg, 0, 65535); | |
718e3744 | 2553 | |
2554 | /* Set each timer value. */ | |
2555 | ripng->update_time = update; | |
2556 | ripng->timeout_time = timeout; | |
2557 | ripng->garbage_time = garbage; | |
2558 | ||
2559 | /* Reset update timer thread. */ | |
2560 | ripng_event (RIPNG_UPDATE_EVENT, 0); | |
2561 | ||
2562 | return CMD_SUCCESS; | |
2563 | } | |
2564 | ||
f412b39a DW |
2565 | /* |
2566 | * CHECK ME - The following ALIASes need to be implemented in this DEFUN | |
2567 | * "no timers basic <0-65535> <0-65535> <0-65535>", | |
2568 | * NO_STR | |
2569 | * "RIPng timers setup\n" | |
2570 | * "Basic timer\n" | |
2571 | * "Routing table update timer value in second. Default is 30.\n" | |
2572 | * "Routing information timeout timer. Default is 180.\n" | |
2573 | * "Garbage collection timer. Default is 120.\n" | |
2574 | * | |
2575 | */ | |
718e3744 | 2576 | DEFUN (no_ripng_timers, |
2577 | no_ripng_timers_cmd, | |
2578 | "no timers basic", | |
2579 | NO_STR | |
2580 | "RIPng timers setup\n" | |
2581 | "Basic timer\n") | |
2582 | { | |
2583 | /* Set each timer value to the default. */ | |
2584 | ripng->update_time = RIPNG_UPDATE_TIMER_DEFAULT; | |
2585 | ripng->timeout_time = RIPNG_TIMEOUT_TIMER_DEFAULT; | |
2586 | ripng->garbage_time = RIPNG_GARBAGE_TIMER_DEFAULT; | |
2587 | ||
2588 | /* Reset update timer thread. */ | |
2589 | ripng_event (RIPNG_UPDATE_EVENT, 0); | |
2590 | ||
2591 | return CMD_SUCCESS; | |
2592 | } | |
2593 | ||
2594 | ||
dd4f9f99 DW |
2595 | DEFUN (show_ipv6_protocols, |
2596 | show_ipv6_protocols_cmd, | |
718e3744 | 2597 | "show ipv6 protocols", |
2598 | SHOW_STR | |
8d0f15fd | 2599 | IPV6_STR |
718e3744 | 2600 | "Routing protocol information") |
2601 | { | |
2602 | if (! ripng) | |
2603 | return CMD_SUCCESS; | |
2604 | ||
2605 | vty_out (vty, "Routing Protocol is \"ripng\"%s", VTY_NEWLINE); | |
2606 | ||
2607 | vty_out (vty, "Sending updates every %ld seconds, next due in %d seconds%s", | |
2608 | ripng->update_time, 0, | |
2609 | VTY_NEWLINE); | |
2610 | ||
2611 | vty_out (vty, "Timerout after %ld seconds, garbage correct %ld%s", | |
2612 | ripng->timeout_time, | |
2613 | ripng->garbage_time, | |
2614 | VTY_NEWLINE); | |
2615 | ||
2616 | vty_out (vty, "Outgoing update filter list for all interfaces is not set"); | |
2617 | vty_out (vty, "Incoming update filter list for all interfaces is not set"); | |
2618 | ||
2619 | return CMD_SUCCESS; | |
2620 | } | |
2621 | ||
2622 | /* Please be carefull to use this command. */ | |
a2c62831 | 2623 | DEFUN (ripng_default_information_originate, |
2624 | ripng_default_information_originate_cmd, | |
718e3744 | 2625 | "default-information originate", |
2626 | "Default route information\n" | |
2627 | "Distribute default route\n") | |
2628 | { | |
2629 | struct prefix_ipv6 p; | |
2630 | ||
a94434b6 | 2631 | if (! ripng ->default_information) { |
2632 | ripng->default_information = 1; | |
718e3744 | 2633 | |
a94434b6 | 2634 | str2prefix_ipv6 ("::/0", &p); |
2635 | ripng_redistribute_add (ZEBRA_ROUTE_RIPNG, RIPNG_ROUTE_DEFAULT, &p, 0, NULL); | |
2636 | } | |
718e3744 | 2637 | |
2638 | return CMD_SUCCESS; | |
2639 | } | |
2640 | ||
a2c62831 | 2641 | DEFUN (no_ripng_default_information_originate, |
2642 | no_ripng_default_information_originate_cmd, | |
718e3744 | 2643 | "no default-information originate", |
2644 | NO_STR | |
2645 | "Default route information\n" | |
2646 | "Distribute default route\n") | |
2647 | { | |
2648 | struct prefix_ipv6 p; | |
2649 | ||
a94434b6 | 2650 | if (ripng->default_information) { |
2651 | ripng->default_information = 0; | |
718e3744 | 2652 | |
a94434b6 | 2653 | str2prefix_ipv6 ("::/0", &p); |
2654 | ripng_redistribute_delete (ZEBRA_ROUTE_RIPNG, RIPNG_ROUTE_DEFAULT, &p, 0); | |
2655 | } | |
718e3744 | 2656 | |
2657 | return CMD_SUCCESS; | |
2658 | } | |
2659 | ||
fac76f9c FL |
2660 | /* Update ECMP routes to zebra when ECMP is disabled. */ |
2661 | static void | |
2662 | ripng_ecmp_disable (void) | |
2663 | { | |
2664 | struct route_node *rp; | |
2665 | struct ripng_info *rinfo, *tmp_rinfo; | |
2666 | struct list *list; | |
2667 | struct listnode *node, *nextnode; | |
2668 | ||
2669 | if (!ripng) | |
2670 | return; | |
2671 | ||
2672 | for (rp = route_top (ripng->table); rp; rp = route_next (rp)) | |
2673 | if ((list = rp->info) != NULL && listcount (list) > 1) | |
2674 | { | |
2675 | rinfo = listgetdata (listhead (list)); | |
2676 | if (!ripng_route_rte (rinfo)) | |
2677 | continue; | |
2678 | ||
2679 | /* Drop all other entries, except the first one. */ | |
2680 | for (ALL_LIST_ELEMENTS (list, node, nextnode, tmp_rinfo)) | |
2681 | if (tmp_rinfo != rinfo) | |
2682 | { | |
2683 | RIPNG_TIMER_OFF (tmp_rinfo->t_timeout); | |
2684 | RIPNG_TIMER_OFF (tmp_rinfo->t_garbage_collect); | |
2685 | list_delete_node (list, node); | |
2686 | ripng_info_free (tmp_rinfo); | |
2687 | } | |
2688 | ||
2689 | /* Update zebra. */ | |
2690 | ripng_zebra_ipv6_add (rp); | |
2691 | ||
2692 | /* Set the route change flag. */ | |
2693 | SET_FLAG (rinfo->flags, RIPNG_RTF_CHANGED); | |
2694 | ||
2695 | /* Signal the output process to trigger an update. */ | |
2696 | ripng_event (RIPNG_TRIGGERED_UPDATE, 0); | |
2697 | } | |
2698 | } | |
2699 | ||
2700 | DEFUN (ripng_allow_ecmp, | |
2701 | ripng_allow_ecmp_cmd, | |
2702 | "allow-ecmp", | |
2703 | "Allow Equal Cost MultiPath\n") | |
2704 | { | |
2705 | if (ripng->ecmp) | |
2706 | { | |
2707 | vty_out (vty, "ECMP is already enabled.%s", VTY_NEWLINE); | |
2708 | return CMD_WARNING; | |
2709 | } | |
2710 | ||
2711 | ripng->ecmp = 1; | |
2712 | zlog_info ("ECMP is enabled."); | |
2713 | return CMD_SUCCESS; | |
2714 | } | |
2715 | ||
2716 | DEFUN (no_ripng_allow_ecmp, | |
2717 | no_ripng_allow_ecmp_cmd, | |
2718 | "no allow-ecmp", | |
2719 | NO_STR | |
2720 | "Allow Equal Cost MultiPath\n") | |
2721 | { | |
2722 | if (!ripng->ecmp) | |
2723 | { | |
2724 | vty_out (vty, "ECMP is already disabled.%s", VTY_NEWLINE); | |
2725 | return CMD_WARNING; | |
2726 | } | |
2727 | ||
2728 | ripng->ecmp = 0; | |
2729 | zlog_info ("ECMP is disabled."); | |
2730 | ripng_ecmp_disable (); | |
2731 | return CMD_SUCCESS; | |
2732 | } | |
2733 | ||
718e3744 | 2734 | /* RIPng configuration write function. */ |
6ac29a51 | 2735 | static int |
718e3744 | 2736 | ripng_config_write (struct vty *vty) |
2737 | { | |
a94434b6 | 2738 | int ripng_network_write (struct vty *, int); |
2739 | void ripng_redistribute_write (struct vty *, int); | |
718e3744 | 2740 | int write = 0; |
2741 | struct route_node *rp; | |
2742 | ||
2743 | if (ripng) | |
2744 | { | |
2745 | ||
2746 | /* RIPng router. */ | |
2747 | vty_out (vty, "router ripng%s", VTY_NEWLINE); | |
2748 | ||
2749 | if (ripng->default_information) | |
2750 | vty_out (vty, " default-information originate%s", VTY_NEWLINE); | |
2751 | ||
a94434b6 | 2752 | ripng_network_write (vty, 1); |
718e3744 | 2753 | |
2754 | /* RIPng default metric configuration */ | |
2755 | if (ripng->default_metric != RIPNG_DEFAULT_METRIC_DEFAULT) | |
2756 | vty_out (vty, " default-metric %d%s", | |
2757 | ripng->default_metric, VTY_NEWLINE); | |
2758 | ||
a94434b6 | 2759 | ripng_redistribute_write (vty, 1); |
2760 | ||
2761 | /* RIP offset-list configuration. */ | |
2762 | config_write_ripng_offset_list (vty); | |
718e3744 | 2763 | |
2764 | /* RIPng aggregate routes. */ | |
2765 | for (rp = route_top (ripng->aggregate); rp; rp = route_next (rp)) | |
2766 | if (rp->info != NULL) | |
2767 | vty_out (vty, " aggregate-address %s/%d%s", | |
3a2ce6a1 | 2768 | inet6_ntoa (rp->p.u.prefix6), |
718e3744 | 2769 | rp->p.prefixlen, |
2770 | ||
2771 | VTY_NEWLINE); | |
2772 | ||
fac76f9c FL |
2773 | /* ECMP configuration. */ |
2774 | if (ripng->ecmp) | |
2775 | vty_out (vty, " allow-ecmp%s", VTY_NEWLINE); | |
2776 | ||
718e3744 | 2777 | /* RIPng static routes. */ |
2778 | for (rp = route_top (ripng->route); rp; rp = route_next (rp)) | |
2779 | if (rp->info != NULL) | |
3a2ce6a1 | 2780 | vty_out (vty, " route %s/%d%s", inet6_ntoa (rp->p.u.prefix6), |
718e3744 | 2781 | rp->p.prefixlen, |
2782 | VTY_NEWLINE); | |
2783 | ||
2784 | /* RIPng timers configuration. */ | |
2785 | if (ripng->update_time != RIPNG_UPDATE_TIMER_DEFAULT || | |
2786 | ripng->timeout_time != RIPNG_TIMEOUT_TIMER_DEFAULT || | |
2787 | ripng->garbage_time != RIPNG_GARBAGE_TIMER_DEFAULT) | |
2788 | { | |
2789 | vty_out (vty, " timers basic %ld %ld %ld%s", | |
2790 | ripng->update_time, | |
2791 | ripng->timeout_time, | |
2792 | ripng->garbage_time, | |
2793 | VTY_NEWLINE); | |
2794 | } | |
2795 | #if 0 | |
2796 | if (ripng->update_time != RIPNG_UPDATE_TIMER_DEFAULT) | |
2797 | vty_out (vty, " update-timer %d%s", ripng->update_time, | |
2798 | VTY_NEWLINE); | |
2799 | if (ripng->timeout_time != RIPNG_TIMEOUT_TIMER_DEFAULT) | |
2800 | vty_out (vty, " timeout-timer %d%s", ripng->timeout_time, | |
2801 | VTY_NEWLINE); | |
2802 | if (ripng->garbage_time != RIPNG_GARBAGE_TIMER_DEFAULT) | |
2803 | vty_out (vty, " garbage-timer %d%s", ripng->garbage_time, | |
2804 | VTY_NEWLINE); | |
2805 | #endif /* 0 */ | |
2806 | ||
2807 | write += config_write_distribute (vty); | |
2808 | ||
2809 | write += config_write_if_rmap (vty); | |
2810 | ||
2811 | write++; | |
2812 | } | |
2813 | return write; | |
2814 | } | |
2815 | ||
2816 | /* RIPng node structure. */ | |
7fc626de | 2817 | static struct cmd_node cmd_ripng_node = |
718e3744 | 2818 | { |
2819 | RIPNG_NODE, | |
2820 | "%s(config-router)# ", | |
2821 | 1, | |
2822 | }; | |
2823 | ||
6ac29a51 | 2824 | static void |
718e3744 | 2825 | ripng_distribute_update (struct distribute *dist) |
2826 | { | |
2827 | struct interface *ifp; | |
2828 | struct ripng_interface *ri; | |
2829 | struct access_list *alist; | |
2830 | struct prefix_list *plist; | |
2831 | ||
2832 | if (! dist->ifname) | |
2833 | return; | |
2834 | ||
2835 | ifp = if_lookup_by_name (dist->ifname); | |
2836 | if (ifp == NULL) | |
2837 | return; | |
2838 | ||
2839 | ri = ifp->info; | |
2840 | ||
2841 | if (dist->list[DISTRIBUTE_IN]) | |
2842 | { | |
2843 | alist = access_list_lookup (AFI_IP6, dist->list[DISTRIBUTE_IN]); | |
2844 | if (alist) | |
2845 | ri->list[RIPNG_FILTER_IN] = alist; | |
2846 | else | |
2847 | ri->list[RIPNG_FILTER_IN] = NULL; | |
2848 | } | |
2849 | else | |
2850 | ri->list[RIPNG_FILTER_IN] = NULL; | |
2851 | ||
2852 | if (dist->list[DISTRIBUTE_OUT]) | |
2853 | { | |
2854 | alist = access_list_lookup (AFI_IP6, dist->list[DISTRIBUTE_OUT]); | |
2855 | if (alist) | |
2856 | ri->list[RIPNG_FILTER_OUT] = alist; | |
2857 | else | |
2858 | ri->list[RIPNG_FILTER_OUT] = NULL; | |
2859 | } | |
2860 | else | |
2861 | ri->list[RIPNG_FILTER_OUT] = NULL; | |
2862 | ||
2863 | if (dist->prefix[DISTRIBUTE_IN]) | |
2864 | { | |
2865 | plist = prefix_list_lookup (AFI_IP6, dist->prefix[DISTRIBUTE_IN]); | |
2866 | if (plist) | |
2867 | ri->prefix[RIPNG_FILTER_IN] = plist; | |
2868 | else | |
2869 | ri->prefix[RIPNG_FILTER_IN] = NULL; | |
2870 | } | |
2871 | else | |
2872 | ri->prefix[RIPNG_FILTER_IN] = NULL; | |
2873 | ||
2874 | if (dist->prefix[DISTRIBUTE_OUT]) | |
2875 | { | |
2876 | plist = prefix_list_lookup (AFI_IP6, dist->prefix[DISTRIBUTE_OUT]); | |
2877 | if (plist) | |
2878 | ri->prefix[RIPNG_FILTER_OUT] = plist; | |
2879 | else | |
2880 | ri->prefix[RIPNG_FILTER_OUT] = NULL; | |
2881 | } | |
2882 | else | |
2883 | ri->prefix[RIPNG_FILTER_OUT] = NULL; | |
2884 | } | |
a94434b6 | 2885 | |
718e3744 | 2886 | void |
2887 | ripng_distribute_update_interface (struct interface *ifp) | |
2888 | { | |
2889 | struct distribute *dist; | |
2890 | ||
2891 | dist = distribute_lookup (ifp->name); | |
2892 | if (dist) | |
2893 | ripng_distribute_update (dist); | |
2894 | } | |
2895 | ||
2896 | /* Update all interface's distribute list. */ | |
6ac29a51 | 2897 | static void |
c9e52be3 | 2898 | ripng_distribute_update_all (struct prefix_list *notused) |
718e3744 | 2899 | { |
2900 | struct interface *ifp; | |
52dc7ee6 | 2901 | struct listnode *node; |
718e3744 | 2902 | |
b2d7c082 | 2903 | for (ALL_LIST_ELEMENTS_RO (vrf_iflist (VRF_DEFAULT), node, ifp)) |
1eb8ef25 | 2904 | ripng_distribute_update_interface (ifp); |
718e3744 | 2905 | } |
c9e52be3 | 2906 | |
6ac29a51 | 2907 | static void |
c9e52be3 | 2908 | ripng_distribute_update_all_wrapper (struct access_list *notused) |
2909 | { | |
2910 | ripng_distribute_update_all(NULL); | |
2911 | } | |
6b0655a2 | 2912 | |
a94434b6 | 2913 | /* delete all the added ripng routes. */ |
2914 | void | |
2915 | ripng_clean() | |
2916 | { | |
2917 | int i; | |
2918 | struct route_node *rp; | |
2919 | struct ripng_info *rinfo; | |
c880b636 FL |
2920 | struct ripng_aggregate *aggregate; |
2921 | struct list *list = NULL; | |
2922 | struct listnode *listnode = NULL; | |
a94434b6 | 2923 | |
2924 | if (ripng) { | |
2925 | /* Clear RIPng routes */ | |
c880b636 FL |
2926 | for (rp = route_top (ripng->table); rp; rp = route_next (rp)) |
2927 | { | |
2928 | if ((list = rp->info) != NULL) | |
2929 | { | |
2930 | rinfo = listgetdata (listhead (list)); | |
2931 | if (ripng_route_rte (rinfo)) | |
2932 | ripng_zebra_ipv6_delete (rp); | |
2933 | ||
2934 | for (ALL_LIST_ELEMENTS_RO (list, listnode, rinfo)) | |
2935 | { | |
2936 | RIPNG_TIMER_OFF (rinfo->t_timeout); | |
2937 | RIPNG_TIMER_OFF (rinfo->t_garbage_collect); | |
2938 | ripng_info_free (rinfo); | |
2939 | } | |
2940 | list_delete (list); | |
2941 | rp->info = NULL; | |
2942 | route_unlock_node (rp); | |
2943 | } | |
2944 | ||
2945 | if ((aggregate = rp->aggregate) != NULL) | |
2946 | { | |
2947 | ripng_aggregate_free (aggregate); | |
2948 | rp->aggregate = NULL; | |
2949 | route_unlock_node (rp); | |
2950 | } | |
a94434b6 | 2951 | } |
2952 | ||
2953 | /* Cancel the RIPng timers */ | |
2954 | RIPNG_TIMER_OFF (ripng->t_update); | |
2955 | RIPNG_TIMER_OFF (ripng->t_triggered_update); | |
2956 | RIPNG_TIMER_OFF (ripng->t_triggered_interval); | |
2957 | ||
2958 | /* Cancel the read thread */ | |
2959 | if (ripng->t_read) { | |
2960 | thread_cancel (ripng->t_read); | |
2961 | ripng->t_read = NULL; | |
2962 | } | |
2963 | ||
2964 | /* Close the RIPng socket */ | |
2965 | if (ripng->sock >= 0) { | |
2966 | close(ripng->sock); | |
2967 | ripng->sock = -1; | |
2968 | } | |
2969 | ||
2970 | /* Static RIPng route configuration. */ | |
2971 | for (rp = route_top (ripng->route); rp; rp = route_next (rp)) | |
2972 | if (rp->info) { | |
2973 | rp->info = NULL; | |
2974 | route_unlock_node (rp); | |
2975 | } | |
2976 | ||
2977 | /* RIPng aggregated prefixes */ | |
2978 | for (rp = route_top (ripng->aggregate); rp; rp = route_next (rp)) | |
2979 | if (rp->info) { | |
2980 | rp->info = NULL; | |
2981 | route_unlock_node (rp); | |
2982 | } | |
2983 | ||
2984 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
2985 | if (ripng->route_map[i].name) | |
2986 | free (ripng->route_map[i].name); | |
2987 | ||
2988 | XFREE (MTYPE_ROUTE_TABLE, ripng->table); | |
2989 | XFREE (MTYPE_ROUTE_TABLE, ripng->route); | |
2990 | XFREE (MTYPE_ROUTE_TABLE, ripng->aggregate); | |
2991 | ||
2992 | XFREE (MTYPE_RIPNG, ripng); | |
2993 | ripng = NULL; | |
2994 | } /* if (ripng) */ | |
2995 | ||
2996 | ripng_clean_network(); | |
2997 | ripng_passive_interface_clean (); | |
2998 | ripng_offset_clean (); | |
2999 | ripng_interface_clean (); | |
3000 | ripng_redistribute_clean (); | |
3001 | } | |
3002 | ||
3003 | /* Reset all values to the default settings. */ | |
3004 | void | |
3005 | ripng_reset () | |
3006 | { | |
3007 | /* Call ripd related reset functions. */ | |
3008 | ripng_debug_reset (); | |
3009 | ripng_route_map_reset (); | |
3010 | ||
3011 | /* Call library reset functions. */ | |
3012 | vty_reset (); | |
3013 | access_list_reset (); | |
3014 | prefix_list_reset (); | |
3015 | ||
3016 | distribute_list_reset (); | |
3017 | ||
3018 | ripng_interface_reset (); | |
3019 | ||
3020 | ripng_zclient_reset (); | |
3021 | } | |
718e3744 | 3022 | |
6ac29a51 | 3023 | static void |
718e3744 | 3024 | ripng_if_rmap_update (struct if_rmap *if_rmap) |
3025 | { | |
3026 | struct interface *ifp; | |
3027 | struct ripng_interface *ri; | |
3028 | struct route_map *rmap; | |
3029 | ||
3030 | ifp = if_lookup_by_name (if_rmap->ifname); | |
3031 | if (ifp == NULL) | |
3032 | return; | |
3033 | ||
3034 | ri = ifp->info; | |
3035 | ||
3036 | if (if_rmap->routemap[IF_RMAP_IN]) | |
3037 | { | |
3038 | rmap = route_map_lookup_by_name (if_rmap->routemap[IF_RMAP_IN]); | |
3039 | if (rmap) | |
3040 | ri->routemap[IF_RMAP_IN] = rmap; | |
3041 | else | |
3042 | ri->routemap[IF_RMAP_IN] = NULL; | |
3043 | } | |
3044 | else | |
3045 | ri->routemap[RIPNG_FILTER_IN] = NULL; | |
3046 | ||
3047 | if (if_rmap->routemap[IF_RMAP_OUT]) | |
3048 | { | |
3049 | rmap = route_map_lookup_by_name (if_rmap->routemap[IF_RMAP_OUT]); | |
3050 | if (rmap) | |
3051 | ri->routemap[IF_RMAP_OUT] = rmap; | |
3052 | else | |
3053 | ri->routemap[IF_RMAP_OUT] = NULL; | |
3054 | } | |
3055 | else | |
3056 | ri->routemap[RIPNG_FILTER_OUT] = NULL; | |
3057 | } | |
3058 | ||
3059 | void | |
3060 | ripng_if_rmap_update_interface (struct interface *ifp) | |
3061 | { | |
3062 | struct if_rmap *if_rmap; | |
3063 | ||
3064 | if_rmap = if_rmap_lookup (ifp->name); | |
3065 | if (if_rmap) | |
3066 | ripng_if_rmap_update (if_rmap); | |
3067 | } | |
3068 | ||
6ac29a51 | 3069 | static void |
718e3744 | 3070 | ripng_routemap_update_redistribute (void) |
3071 | { | |
3072 | int i; | |
3073 | ||
3074 | if (ripng) | |
3075 | { | |
3076 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
3077 | { | |
3078 | if (ripng->route_map[i].name) | |
3079 | ripng->route_map[i].map = | |
3080 | route_map_lookup_by_name (ripng->route_map[i].name); | |
3081 | } | |
3082 | } | |
3083 | } | |
3084 | ||
6ac29a51 | 3085 | static void |
98b718a9 | 3086 | ripng_routemap_update (const char *unused) |
718e3744 | 3087 | { |
3088 | struct interface *ifp; | |
52dc7ee6 | 3089 | struct listnode *node; |
718e3744 | 3090 | |
b2d7c082 | 3091 | for (ALL_LIST_ELEMENTS_RO (vrf_iflist (VRF_DEFAULT), node, ifp)) |
1eb8ef25 | 3092 | ripng_if_rmap_update_interface (ifp); |
718e3744 | 3093 | |
3094 | ripng_routemap_update_redistribute (); | |
3095 | } | |
3096 | ||
3097 | /* Initialize ripng structure and set commands. */ | |
3098 | void | |
3099 | ripng_init () | |
3100 | { | |
3101 | /* Randomize. */ | |
b06fd125 | 3102 | srandom (time (NULL)); |
718e3744 | 3103 | |
3104 | /* Install RIPNG_NODE. */ | |
3105 | install_node (&cmd_ripng_node, ripng_config_write); | |
3106 | ||
3107 | /* Install ripng commands. */ | |
3108 | install_element (VIEW_NODE, &show_ipv6_ripng_cmd); | |
a94434b6 | 3109 | install_element (VIEW_NODE, &show_ipv6_ripng_status_cmd); |
718e3744 | 3110 | |
3111 | install_element (ENABLE_NODE, &show_ipv6_ripng_cmd); | |
a94434b6 | 3112 | install_element (ENABLE_NODE, &show_ipv6_ripng_status_cmd); |
718e3744 | 3113 | |
3114 | install_element (CONFIG_NODE, &router_ripng_cmd); | |
a94434b6 | 3115 | install_element (CONFIG_NODE, &no_router_ripng_cmd); |
718e3744 | 3116 | |
3117 | install_default (RIPNG_NODE); | |
3118 | install_element (RIPNG_NODE, &ripng_route_cmd); | |
3119 | install_element (RIPNG_NODE, &no_ripng_route_cmd); | |
3120 | install_element (RIPNG_NODE, &ripng_aggregate_address_cmd); | |
3121 | install_element (RIPNG_NODE, &no_ripng_aggregate_address_cmd); | |
3122 | ||
3123 | install_element (RIPNG_NODE, &ripng_default_metric_cmd); | |
3124 | install_element (RIPNG_NODE, &no_ripng_default_metric_cmd); | |
718e3744 | 3125 | |
3126 | install_element (RIPNG_NODE, &ripng_timers_cmd); | |
3127 | install_element (RIPNG_NODE, &no_ripng_timers_cmd); | |
3128 | #if 0 | |
3129 | install_element (RIPNG_NODE, &ripng_update_timer_cmd); | |
3130 | install_element (RIPNG_NODE, &no_ripng_update_timer_cmd); | |
3131 | install_element (RIPNG_NODE, &ripng_timeout_timer_cmd); | |
3132 | install_element (RIPNG_NODE, &no_ripng_timeout_timer_cmd); | |
3133 | install_element (RIPNG_NODE, &ripng_garbage_timer_cmd); | |
3134 | install_element (RIPNG_NODE, &no_ripng_garbage_timer_cmd); | |
3135 | #endif /* 0 */ | |
3136 | ||
a2c62831 | 3137 | install_element (RIPNG_NODE, &ripng_default_information_originate_cmd); |
3138 | install_element (RIPNG_NODE, &no_ripng_default_information_originate_cmd); | |
718e3744 | 3139 | |
fac76f9c FL |
3140 | install_element (RIPNG_NODE, &ripng_allow_ecmp_cmd); |
3141 | install_element (RIPNG_NODE, &no_ripng_allow_ecmp_cmd); | |
3142 | ||
718e3744 | 3143 | ripng_if_init (); |
3144 | ripng_debug_init (); | |
3145 | ||
3146 | /* Access list install. */ | |
3147 | access_list_init (); | |
c9e52be3 | 3148 | access_list_add_hook (ripng_distribute_update_all_wrapper); |
3149 | access_list_delete_hook (ripng_distribute_update_all_wrapper); | |
718e3744 | 3150 | |
3151 | /* Prefix list initialize.*/ | |
3152 | prefix_list_init (); | |
3153 | prefix_list_add_hook (ripng_distribute_update_all); | |
3154 | prefix_list_delete_hook (ripng_distribute_update_all); | |
3155 | ||
3156 | /* Distribute list install. */ | |
3157 | distribute_list_init (RIPNG_NODE); | |
3158 | distribute_list_add_hook (ripng_distribute_update); | |
3159 | distribute_list_delete_hook (ripng_distribute_update); | |
3160 | ||
3161 | /* Route-map for interface. */ | |
3162 | ripng_route_map_init (); | |
a94434b6 | 3163 | ripng_offset_init (); |
3164 | ||
718e3744 | 3165 | route_map_add_hook (ripng_routemap_update); |
3166 | route_map_delete_hook (ripng_routemap_update); | |
3167 | ||
0750d21f | 3168 | if_rmap_init (RIPNG_NODE); |
718e3744 | 3169 | if_rmap_hook_add (ripng_if_rmap_update); |
3170 | if_rmap_hook_delete (ripng_if_rmap_update); | |
3171 | } |