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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 | * | |
896014f4 DL |
16 | * You should have received a copy of the GNU General Public License along |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
718e3744 | 19 | */ |
20 | ||
21 | #include <zebra.h> | |
22 | ||
718e3744 | 23 | #include "prefix.h" |
24 | #include "filter.h" | |
25 | #include "log.h" | |
26 | #include "thread.h" | |
27 | #include "memory.h" | |
28 | #include "if.h" | |
29 | #include "stream.h" | |
30 | #include "table.h" | |
31 | #include "command.h" | |
32 | #include "sockopt.h" | |
33 | #include "distribute.h" | |
34 | #include "plist.h" | |
35 | #include "routemap.h" | |
0750d21f | 36 | #include "if_rmap.h" |
27d47aa7 | 37 | #include "privs.h" |
718e3744 | 38 | |
39 | #include "ripngd/ripngd.h" | |
40 | #include "ripngd/ripng_route.h" | |
41 | #include "ripngd/ripng_debug.h" | |
a94434b6 | 42 | #include "ripngd/ripng_nexthop.h" |
718e3744 | 43 | |
44 | /* RIPng structure which includes many parameters related to RIPng | |
45 | protocol. If ripng couldn't active or ripng doesn't configured, | |
46 | ripng->fd must be negative value. */ | |
47 | struct ripng *ripng = NULL; | |
48 | ||
d62a17ae | 49 | enum { ripng_all_route, |
50 | ripng_changed_route, | |
718e3744 | 51 | }; |
52 | ||
53 | /* Prototypes. */ | |
d62a17ae | 54 | void ripng_output_process(struct interface *, struct sockaddr_in6 *, int); |
718e3744 | 55 | |
d62a17ae | 56 | int ripng_triggered_update(struct thread *); |
718e3744 | 57 | |
58 | /* RIPng next hop specification. */ | |
d62a17ae | 59 | struct ripng_nexthop { |
60 | enum ripng_nexthop_type { | |
61 | RIPNG_NEXTHOP_UNSPEC, | |
62 | RIPNG_NEXTHOP_ADDRESS | |
63 | } flag; | |
64 | struct in6_addr address; | |
718e3744 | 65 | }; |
718e3744 | 66 | |
d62a17ae | 67 | static int ripng_route_rte(struct ripng_info *rinfo) |
a94434b6 | 68 | { |
d62a17ae | 69 | return (rinfo->type == ZEBRA_ROUTE_RIPNG |
70 | && rinfo->sub_type == RIPNG_ROUTE_RTE); | |
a94434b6 | 71 | } |
72 | ||
718e3744 | 73 | /* Allocate new ripng information. */ |
d62a17ae | 74 | struct ripng_info *ripng_info_new() |
718e3744 | 75 | { |
d62a17ae | 76 | struct ripng_info *new; |
718e3744 | 77 | |
d62a17ae | 78 | new = XCALLOC(MTYPE_RIPNG_ROUTE, sizeof(struct ripng_info)); |
79 | return new; | |
718e3744 | 80 | } |
81 | ||
82 | /* Free ripng information. */ | |
d62a17ae | 83 | void ripng_info_free(struct ripng_info *rinfo) |
718e3744 | 84 | { |
d62a17ae | 85 | XFREE(MTYPE_RIPNG_ROUTE, rinfo); |
718e3744 | 86 | } |
6b0655a2 | 87 | |
718e3744 | 88 | /* Create ripng socket. */ |
d62a17ae | 89 | static int ripng_make_socket(void) |
718e3744 | 90 | { |
d62a17ae | 91 | int ret; |
92 | int sock; | |
93 | struct sockaddr_in6 ripaddr; | |
718e3744 | 94 | |
d62a17ae | 95 | sock = socket(AF_INET6, SOCK_DGRAM, 0); |
96 | if (sock < 0) { | |
97 | zlog_err("Can't make ripng socket"); | |
98 | return sock; | |
99 | } | |
718e3744 | 100 | |
d62a17ae | 101 | setsockopt_so_recvbuf(sock, 8096); |
102 | ret = setsockopt_ipv6_pktinfo(sock, 1); | |
103 | if (ret < 0) | |
44f12f20 | 104 | goto error; |
6d0732c8 | 105 | #ifdef IPTOS_PREC_INTERNETCONTROL |
d62a17ae | 106 | ret = setsockopt_ipv6_tclass(sock, IPTOS_PREC_INTERNETCONTROL); |
107 | if (ret < 0) | |
44f12f20 | 108 | goto error; |
6d0732c8 | 109 | #endif |
d62a17ae | 110 | ret = setsockopt_ipv6_multicast_hops(sock, 255); |
111 | if (ret < 0) | |
44f12f20 | 112 | goto error; |
d62a17ae | 113 | ret = setsockopt_ipv6_multicast_loop(sock, 0); |
114 | if (ret < 0) | |
44f12f20 | 115 | goto error; |
d62a17ae | 116 | ret = setsockopt_ipv6_hoplimit(sock, 1); |
117 | if (ret < 0) | |
44f12f20 | 118 | goto error; |
d62a17ae | 119 | |
120 | memset(&ripaddr, 0, sizeof(ripaddr)); | |
121 | ripaddr.sin6_family = AF_INET6; | |
718e3744 | 122 | #ifdef SIN6_LEN |
d62a17ae | 123 | ripaddr.sin6_len = sizeof(struct sockaddr_in6); |
718e3744 | 124 | #endif /* SIN6_LEN */ |
d62a17ae | 125 | ripaddr.sin6_port = htons(RIPNG_PORT_DEFAULT); |
718e3744 | 126 | |
d62a17ae | 127 | if (ripngd_privs.change(ZPRIVS_RAISE)) |
128 | zlog_err("ripng_make_socket: could not raise privs"); | |
129 | ||
130 | ret = bind(sock, (struct sockaddr *)&ripaddr, sizeof(ripaddr)); | |
131 | if (ret < 0) { | |
132 | zlog_err("Can't bind ripng socket: %s.", safe_strerror(errno)); | |
133 | if (ripngd_privs.change(ZPRIVS_LOWER)) | |
134 | zlog_err("ripng_make_socket: could not lower privs"); | |
44f12f20 | 135 | goto error; |
d62a17ae | 136 | } |
137 | if (ripngd_privs.change(ZPRIVS_LOWER)) | |
138 | zlog_err("ripng_make_socket: could not lower privs"); | |
139 | return sock; | |
44f12f20 RW |
140 | |
141 | error: | |
142 | close(sock); | |
143 | return ret; | |
718e3744 | 144 | } |
145 | ||
146 | /* Send RIPng packet. */ | |
d62a17ae | 147 | int ripng_send_packet(caddr_t buf, int bufsize, struct sockaddr_in6 *to, |
148 | struct interface *ifp) | |
149 | { | |
150 | int ret; | |
151 | struct msghdr msg; | |
152 | struct iovec iov; | |
153 | struct cmsghdr *cmsgptr; | |
154 | char adata[256]; | |
155 | struct in6_pktinfo *pkt; | |
156 | struct sockaddr_in6 addr; | |
157 | ||
158 | if (IS_RIPNG_DEBUG_SEND) { | |
159 | if (to) | |
160 | zlog_debug("send to %s", inet6_ntoa(to->sin6_addr)); | |
161 | zlog_debug(" send interface %s", ifp->name); | |
162 | zlog_debug(" send packet size %d", bufsize); | |
163 | } | |
164 | ||
165 | memset(&addr, 0, sizeof(struct sockaddr_in6)); | |
166 | addr.sin6_family = AF_INET6; | |
718e3744 | 167 | #ifdef SIN6_LEN |
d62a17ae | 168 | addr.sin6_len = sizeof(struct sockaddr_in6); |
718e3744 | 169 | #endif /* SIN6_LEN */ |
d62a17ae | 170 | addr.sin6_flowinfo = htonl(RIPNG_PRIORITY_DEFAULT); |
171 | ||
172 | /* When destination is specified. */ | |
173 | if (to != NULL) { | |
174 | addr.sin6_addr = to->sin6_addr; | |
175 | addr.sin6_port = to->sin6_port; | |
176 | } else { | |
177 | inet_pton(AF_INET6, RIPNG_GROUP, &addr.sin6_addr); | |
178 | addr.sin6_port = htons(RIPNG_PORT_DEFAULT); | |
179 | } | |
718e3744 | 180 | |
0af35d90 | 181 | memset(&msg, 0, sizeof(msg)); |
d62a17ae | 182 | msg.msg_name = (void *)&addr; |
183 | msg.msg_namelen = sizeof(struct sockaddr_in6); | |
184 | msg.msg_iov = &iov; | |
185 | msg.msg_iovlen = 1; | |
186 | msg.msg_control = (void *)adata; | |
187 | msg.msg_controllen = CMSG_SPACE(sizeof(struct in6_pktinfo)); | |
188 | ||
189 | iov.iov_base = buf; | |
190 | iov.iov_len = bufsize; | |
191 | ||
192 | cmsgptr = (struct cmsghdr *)adata; | |
193 | cmsgptr->cmsg_len = CMSG_LEN(sizeof(struct in6_pktinfo)); | |
194 | cmsgptr->cmsg_level = IPPROTO_IPV6; | |
195 | cmsgptr->cmsg_type = IPV6_PKTINFO; | |
196 | ||
197 | pkt = (struct in6_pktinfo *)CMSG_DATA(cmsgptr); | |
198 | memset(&pkt->ipi6_addr, 0, sizeof(struct in6_addr)); | |
199 | pkt->ipi6_ifindex = ifp->ifindex; | |
200 | ||
201 | ret = sendmsg(ripng->sock, &msg, 0); | |
202 | ||
203 | if (ret < 0) { | |
204 | if (to) | |
205 | zlog_err("RIPng send fail on %s to %s: %s", ifp->name, | |
206 | inet6_ntoa(to->sin6_addr), | |
207 | safe_strerror(errno)); | |
208 | else | |
209 | zlog_err("RIPng send fail on %s: %s", ifp->name, | |
210 | safe_strerror(errno)); | |
211 | } | |
718e3744 | 212 | |
d62a17ae | 213 | return ret; |
718e3744 | 214 | } |
215 | ||
216 | /* Receive UDP RIPng packet from socket. */ | |
d7c0a89a | 217 | static int ripng_recv_packet(int sock, uint8_t *buf, int bufsize, |
d62a17ae | 218 | struct sockaddr_in6 *from, ifindex_t *ifindex, |
219 | int *hoplimit) | |
220 | { | |
221 | int ret; | |
222 | struct msghdr msg; | |
223 | struct iovec iov; | |
224 | struct cmsghdr *cmsgptr; | |
225 | struct in6_addr dst = {.s6_addr = {0}}; | |
226 | ||
227 | memset(&dst, 0, sizeof(struct in6_addr)); | |
228 | ||
229 | /* Ancillary data. This store cmsghdr and in6_pktinfo. But at this | |
230 | point I can't determine size of cmsghdr */ | |
231 | char adata[1024]; | |
232 | ||
233 | /* Fill in message and iovec. */ | |
0af35d90 | 234 | memset(&msg, 0, sizeof(msg)); |
d62a17ae | 235 | msg.msg_name = (void *)from; |
236 | msg.msg_namelen = sizeof(struct sockaddr_in6); | |
237 | msg.msg_iov = &iov; | |
238 | msg.msg_iovlen = 1; | |
239 | msg.msg_control = (void *)adata; | |
240 | msg.msg_controllen = sizeof adata; | |
241 | iov.iov_base = buf; | |
242 | iov.iov_len = bufsize; | |
243 | ||
244 | /* If recvmsg fail return minus value. */ | |
245 | ret = recvmsg(sock, &msg, 0); | |
246 | if (ret < 0) | |
247 | return ret; | |
248 | ||
249 | for (cmsgptr = ZCMSG_FIRSTHDR(&msg); cmsgptr != NULL; | |
250 | cmsgptr = CMSG_NXTHDR(&msg, cmsgptr)) { | |
251 | /* I want interface index which this packet comes from. */ | |
252 | if (cmsgptr->cmsg_level == IPPROTO_IPV6 | |
253 | && cmsgptr->cmsg_type == IPV6_PKTINFO) { | |
254 | struct in6_pktinfo *ptr; | |
255 | ||
256 | ptr = (struct in6_pktinfo *)CMSG_DATA(cmsgptr); | |
257 | *ifindex = ptr->ipi6_ifindex; | |
258 | dst = ptr->ipi6_addr; | |
259 | ||
260 | if (*ifindex == 0) | |
261 | zlog_warn( | |
262 | "Interface index returned by IPV6_PKTINFO is zero"); | |
263 | } | |
264 | ||
265 | /* Incoming packet's multicast hop limit. */ | |
266 | if (cmsgptr->cmsg_level == IPPROTO_IPV6 | |
267 | && cmsgptr->cmsg_type == IPV6_HOPLIMIT) { | |
268 | int *phoplimit = (int *)CMSG_DATA(cmsgptr); | |
269 | *hoplimit = *phoplimit; | |
270 | } | |
5eb9d11b | 271 | } |
718e3744 | 272 | |
d62a17ae | 273 | /* Hoplimit check shold be done when destination address is |
274 | multicast address. */ | |
275 | if (!IN6_IS_ADDR_MULTICAST(&dst)) | |
276 | *hoplimit = -1; | |
718e3744 | 277 | |
d62a17ae | 278 | return ret; |
718e3744 | 279 | } |
280 | ||
281 | /* Dump rip packet */ | |
d62a17ae | 282 | void ripng_packet_dump(struct ripng_packet *packet, int size, |
283 | const char *sndrcv) | |
284 | { | |
285 | caddr_t lim; | |
286 | struct rte *rte; | |
287 | const char *command_str; | |
288 | ||
289 | /* Set command string. */ | |
290 | if (packet->command == RIPNG_REQUEST) | |
291 | command_str = "request"; | |
292 | else if (packet->command == RIPNG_RESPONSE) | |
293 | command_str = "response"; | |
294 | else | |
295 | command_str = "unknown"; | |
296 | ||
297 | /* Dump packet header. */ | |
298 | zlog_debug("%s %s version %d packet size %d", sndrcv, command_str, | |
299 | packet->version, size); | |
300 | ||
301 | /* Dump each routing table entry. */ | |
302 | rte = packet->rte; | |
303 | ||
304 | for (lim = (caddr_t)packet + size; (caddr_t)rte < lim; rte++) { | |
305 | if (rte->metric == RIPNG_METRIC_NEXTHOP) | |
306 | zlog_debug(" nexthop %s/%d", inet6_ntoa(rte->addr), | |
307 | rte->prefixlen); | |
308 | else | |
309 | zlog_debug(" %s/%d metric %d tag %" ROUTE_TAG_PRI, | |
310 | inet6_ntoa(rte->addr), rte->prefixlen, | |
311 | rte->metric, (route_tag_t)ntohs(rte->tag)); | |
312 | } | |
718e3744 | 313 | } |
314 | ||
315 | /* RIPng next hop address RTE (Route Table Entry). */ | |
d62a17ae | 316 | static void ripng_nexthop_rte(struct rte *rte, struct sockaddr_in6 *from, |
317 | struct ripng_nexthop *nexthop) | |
318 | { | |
319 | char buf[INET6_BUFSIZ]; | |
320 | ||
321 | /* Logging before checking RTE. */ | |
322 | if (IS_RIPNG_DEBUG_RECV) | |
323 | zlog_debug("RIPng nexthop RTE address %s tag %" ROUTE_TAG_PRI | |
324 | " prefixlen %d", | |
325 | inet6_ntoa(rte->addr), (route_tag_t)ntohs(rte->tag), | |
326 | rte->prefixlen); | |
327 | ||
328 | /* RFC2080 2.1.1 Next Hop: | |
329 | The route tag and prefix length in the next hop RTE must be | |
330 | set to zero on sending and ignored on receiption. */ | |
331 | if (ntohs(rte->tag) != 0) | |
332 | zlog_warn( | |
333 | "RIPng nexthop RTE with non zero tag value %" ROUTE_TAG_PRI | |
334 | " from %s", | |
335 | (route_tag_t)ntohs(rte->tag), | |
336 | inet6_ntoa(from->sin6_addr)); | |
337 | ||
338 | if (rte->prefixlen != 0) | |
339 | zlog_warn( | |
340 | "RIPng nexthop RTE with non zero prefixlen value %d from %s", | |
341 | rte->prefixlen, inet6_ntoa(from->sin6_addr)); | |
342 | ||
343 | /* Specifying a value of 0:0:0:0:0:0:0:0 in the prefix field of a | |
344 | next hop RTE indicates that the next hop address should be the | |
345 | originator of the RIPng advertisement. An address specified as a | |
346 | next hop must be a link-local address. */ | |
347 | if (IN6_IS_ADDR_UNSPECIFIED(&rte->addr)) { | |
348 | nexthop->flag = RIPNG_NEXTHOP_UNSPEC; | |
349 | memset(&nexthop->address, 0, sizeof(struct in6_addr)); | |
350 | return; | |
351 | } | |
718e3744 | 352 | |
d62a17ae | 353 | if (IN6_IS_ADDR_LINKLOCAL(&rte->addr)) { |
354 | nexthop->flag = RIPNG_NEXTHOP_ADDRESS; | |
355 | IPV6_ADDR_COPY(&nexthop->address, &rte->addr); | |
356 | return; | |
357 | } | |
718e3744 | 358 | |
d62a17ae | 359 | /* The purpose of the next hop RTE is to eliminate packets being |
360 | routed through extra hops in the system. It is particularly useful | |
361 | when RIPng is not being run on all of the routers on a network. | |
362 | Note that next hop RTE is "advisory". That is, if the provided | |
363 | information is ignored, a possibly sub-optimal, but absolutely | |
364 | valid, route may be taken. If the received next hop address is not | |
365 | a link-local address, it should be treated as 0:0:0:0:0:0:0:0. */ | |
366 | zlog_warn("RIPng nexthop RTE with non link-local address %s from %s", | |
367 | inet6_ntoa(rte->addr), | |
368 | inet_ntop(AF_INET6, &from->sin6_addr, buf, INET6_BUFSIZ)); | |
718e3744 | 369 | |
d62a17ae | 370 | nexthop->flag = RIPNG_NEXTHOP_UNSPEC; |
371 | memset(&nexthop->address, 0, sizeof(struct in6_addr)); | |
718e3744 | 372 | |
d62a17ae | 373 | return; |
718e3744 | 374 | } |
375 | ||
376 | /* If ifp has same link-local address then return 1. */ | |
d62a17ae | 377 | static int ripng_lladdr_check(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 378 | { |
d62a17ae | 379 | struct listnode *node; |
380 | struct connected *connected; | |
381 | struct prefix *p; | |
718e3744 | 382 | |
d62a17ae | 383 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, connected)) { |
384 | p = connected->address; | |
718e3744 | 385 | |
d62a17ae | 386 | if (p->family == AF_INET6 |
387 | && IN6_IS_ADDR_LINKLOCAL(&p->u.prefix6) | |
388 | && IN6_ARE_ADDR_EQUAL(&p->u.prefix6, addr)) | |
389 | return 1; | |
390 | } | |
391 | return 0; | |
718e3744 | 392 | } |
393 | ||
394 | /* RIPng route garbage collect timer. */ | |
d62a17ae | 395 | static int ripng_garbage_collect(struct thread *t) |
718e3744 | 396 | { |
d62a17ae | 397 | struct ripng_info *rinfo; |
398 | struct route_node *rp; | |
718e3744 | 399 | |
d62a17ae | 400 | rinfo = THREAD_ARG(t); |
401 | rinfo->t_garbage_collect = NULL; | |
718e3744 | 402 | |
d62a17ae | 403 | /* Off timeout timer. */ |
404 | RIPNG_TIMER_OFF(rinfo->t_timeout); | |
718e3744 | 405 | |
d62a17ae | 406 | /* Get route_node pointer. */ |
407 | rp = rinfo->rp; | |
408 | ||
409 | /* Unlock route_node. */ | |
410 | listnode_delete(rp->info, rinfo); | |
411 | if (list_isempty((struct list *)rp->info)) { | |
acdf5e25 | 412 | list_delete_and_null((struct list **)&rp->info); |
d62a17ae | 413 | route_unlock_node(rp); |
414 | } | |
718e3744 | 415 | |
d62a17ae | 416 | /* Free RIPng routing information. */ |
417 | ripng_info_free(rinfo); | |
718e3744 | 418 | |
d62a17ae | 419 | return 0; |
718e3744 | 420 | } |
421 | ||
d62a17ae | 422 | static void ripng_timeout_update(struct ripng_info *rinfo); |
c880b636 FL |
423 | |
424 | /* Add new route to the ECMP list. | |
fac76f9c FL |
425 | * RETURN: the new entry added in the list, or NULL if it is not the first |
426 | * entry and ECMP is not allowed. | |
c880b636 | 427 | */ |
d62a17ae | 428 | struct ripng_info *ripng_ecmp_add(struct ripng_info *rinfo_new) |
718e3744 | 429 | { |
d62a17ae | 430 | struct route_node *rp = rinfo_new->rp; |
431 | struct ripng_info *rinfo = NULL; | |
432 | struct list *list = NULL; | |
718e3744 | 433 | |
d62a17ae | 434 | if (rp->info == NULL) |
435 | rp->info = list_new(); | |
436 | list = (struct list *)rp->info; | |
718e3744 | 437 | |
d62a17ae | 438 | /* If ECMP is not allowed and some entry already exists in the list, |
439 | * do nothing. */ | |
440 | if (listcount(list) && !ripng->ecmp) | |
441 | return NULL; | |
fac76f9c | 442 | |
d62a17ae | 443 | rinfo = ripng_info_new(); |
444 | memcpy(rinfo, rinfo_new, sizeof(struct ripng_info)); | |
445 | listnode_add(list, rinfo); | |
c880b636 | 446 | |
d62a17ae | 447 | if (ripng_route_rte(rinfo)) { |
448 | ripng_timeout_update(rinfo); | |
449 | ripng_zebra_ipv6_add(rp); | |
450 | } | |
c880b636 | 451 | |
d62a17ae | 452 | ripng_aggregate_increment(rp, rinfo); |
c880b636 | 453 | |
d62a17ae | 454 | /* Set the route change flag on the first entry. */ |
455 | rinfo = listgetdata(listhead(list)); | |
456 | SET_FLAG(rinfo->flags, RIPNG_RTF_CHANGED); | |
c880b636 | 457 | |
d62a17ae | 458 | /* Signal the output process to trigger an update. */ |
459 | ripng_event(RIPNG_TRIGGERED_UPDATE, 0); | |
c880b636 | 460 | |
d62a17ae | 461 | return rinfo; |
c880b636 FL |
462 | } |
463 | ||
464 | /* Replace the ECMP list with the new route. | |
465 | * RETURN: the new entry added in the list | |
466 | */ | |
d62a17ae | 467 | struct ripng_info *ripng_ecmp_replace(struct ripng_info *rinfo_new) |
468 | { | |
469 | struct route_node *rp = rinfo_new->rp; | |
470 | struct list *list = (struct list *)rp->info; | |
471 | struct ripng_info *rinfo = NULL, *tmp_rinfo = NULL; | |
472 | struct listnode *node = NULL, *nextnode = NULL; | |
473 | ||
474 | if (list == NULL || listcount(list) == 0) | |
475 | return ripng_ecmp_add(rinfo_new); | |
476 | ||
477 | /* Get the first entry */ | |
478 | rinfo = listgetdata(listhead(list)); | |
479 | ||
480 | /* Learnt route replaced by a local one. Delete it from zebra. */ | |
481 | if (ripng_route_rte(rinfo) && !ripng_route_rte(rinfo_new)) | |
482 | if (CHECK_FLAG(rinfo->flags, RIPNG_RTF_FIB)) | |
483 | ripng_zebra_ipv6_delete(rp); | |
484 | ||
485 | if (rinfo->metric != RIPNG_METRIC_INFINITY) | |
486 | ripng_aggregate_decrement_list(rp, list); | |
487 | ||
488 | /* Re-use the first entry, and delete the others. */ | |
489 | for (ALL_LIST_ELEMENTS(list, node, nextnode, tmp_rinfo)) | |
490 | if (tmp_rinfo != rinfo) { | |
491 | RIPNG_TIMER_OFF(tmp_rinfo->t_timeout); | |
492 | RIPNG_TIMER_OFF(tmp_rinfo->t_garbage_collect); | |
493 | list_delete_node(list, node); | |
494 | ripng_info_free(tmp_rinfo); | |
495 | } | |
c880b636 | 496 | |
d62a17ae | 497 | RIPNG_TIMER_OFF(rinfo->t_timeout); |
498 | RIPNG_TIMER_OFF(rinfo->t_garbage_collect); | |
499 | memcpy(rinfo, rinfo_new, sizeof(struct ripng_info)); | |
c880b636 | 500 | |
d62a17ae | 501 | if (ripng_route_rte(rinfo)) { |
502 | ripng_timeout_update(rinfo); | |
503 | /* The ADD message implies an update. */ | |
504 | ripng_zebra_ipv6_add(rp); | |
505 | } | |
506 | ||
507 | ripng_aggregate_increment(rp, rinfo); | |
508 | ||
509 | /* Set the route change flag. */ | |
510 | SET_FLAG(rinfo->flags, RIPNG_RTF_CHANGED); | |
c880b636 | 511 | |
d62a17ae | 512 | /* Signal the output process to trigger an update. */ |
513 | ripng_event(RIPNG_TRIGGERED_UPDATE, 0); | |
718e3744 | 514 | |
d62a17ae | 515 | return rinfo; |
c880b636 FL |
516 | } |
517 | ||
518 | /* Delete one route from the ECMP list. | |
519 | * RETURN: | |
520 | * null - the entry is freed, and other entries exist in the list | |
521 | * the entry - the entry is the last one in the list; its metric is set | |
522 | * to INFINITY, and the garbage collector is started for it | |
523 | */ | |
d62a17ae | 524 | struct ripng_info *ripng_ecmp_delete(struct ripng_info *rinfo) |
525 | { | |
526 | struct route_node *rp = rinfo->rp; | |
527 | struct list *list = (struct list *)rp->info; | |
528 | ||
529 | RIPNG_TIMER_OFF(rinfo->t_timeout); | |
530 | ||
531 | if (rinfo->metric != RIPNG_METRIC_INFINITY) | |
532 | ripng_aggregate_decrement(rp, rinfo); | |
533 | ||
534 | if (listcount(list) > 1) { | |
535 | /* Some other ECMP entries still exist. Just delete this entry. | |
536 | */ | |
537 | RIPNG_TIMER_OFF(rinfo->t_garbage_collect); | |
538 | listnode_delete(list, rinfo); | |
539 | if (ripng_route_rte(rinfo) | |
540 | && CHECK_FLAG(rinfo->flags, RIPNG_RTF_FIB)) | |
541 | /* The ADD message implies the update. */ | |
542 | ripng_zebra_ipv6_add(rp); | |
543 | ripng_info_free(rinfo); | |
544 | rinfo = NULL; | |
545 | } else { | |
546 | assert(rinfo == listgetdata(listhead(list))); | |
547 | ||
548 | /* This is the only entry left in the list. We must keep it in | |
549 | * the list for garbage collection time, with INFINITY metric. | |
550 | */ | |
551 | ||
552 | rinfo->metric = RIPNG_METRIC_INFINITY; | |
553 | RIPNG_TIMER_ON(rinfo->t_garbage_collect, ripng_garbage_collect, | |
554 | ripng->garbage_time); | |
555 | ||
556 | if (ripng_route_rte(rinfo) | |
557 | && CHECK_FLAG(rinfo->flags, RIPNG_RTF_FIB)) | |
558 | ripng_zebra_ipv6_delete(rp); | |
559 | } | |
c880b636 | 560 | |
d62a17ae | 561 | /* Set the route change flag on the first entry. */ |
562 | rinfo = listgetdata(listhead(list)); | |
563 | SET_FLAG(rinfo->flags, RIPNG_RTF_CHANGED); | |
c880b636 | 564 | |
d62a17ae | 565 | /* Signal the output process to trigger an update. */ |
566 | ripng_event(RIPNG_TRIGGERED_UPDATE, 0); | |
c880b636 | 567 | |
d62a17ae | 568 | return rinfo; |
c880b636 FL |
569 | } |
570 | ||
571 | /* Timeout RIPng routes. */ | |
d62a17ae | 572 | static int ripng_timeout(struct thread *t) |
c880b636 | 573 | { |
d62a17ae | 574 | ripng_ecmp_delete((struct ripng_info *)THREAD_ARG(t)); |
575 | return 0; | |
718e3744 | 576 | } |
577 | ||
d62a17ae | 578 | static void ripng_timeout_update(struct ripng_info *rinfo) |
718e3744 | 579 | { |
d62a17ae | 580 | if (rinfo->metric != RIPNG_METRIC_INFINITY) { |
581 | RIPNG_TIMER_OFF(rinfo->t_timeout); | |
582 | RIPNG_TIMER_ON(rinfo->t_timeout, ripng_timeout, | |
583 | ripng->timeout_time); | |
584 | } | |
718e3744 | 585 | } |
586 | ||
d62a17ae | 587 | static int ripng_filter(int ripng_distribute, struct prefix_ipv6 *p, |
588 | struct ripng_interface *ri) | |
589 | { | |
590 | struct distribute *dist; | |
591 | struct access_list *alist; | |
592 | struct prefix_list *plist; | |
593 | int distribute = ripng_distribute == RIPNG_FILTER_OUT | |
594 | ? DISTRIBUTE_V6_OUT | |
595 | : DISTRIBUTE_V6_IN; | |
596 | const char *inout = ripng_distribute == RIPNG_FILTER_OUT ? "out" : "in"; | |
597 | ||
598 | /* Input distribute-list filtering. */ | |
599 | if (ri->list[ripng_distribute]) { | |
600 | if (access_list_apply(ri->list[ripng_distribute], | |
601 | (struct prefix *)p) | |
602 | == FILTER_DENY) { | |
603 | if (IS_RIPNG_DEBUG_PACKET) | |
604 | zlog_debug("%s/%d filtered by distribute %s", | |
605 | inet6_ntoa(p->prefix), p->prefixlen, | |
606 | inout); | |
607 | return -1; | |
608 | } | |
609 | } | |
610 | if (ri->prefix[ripng_distribute]) { | |
611 | if (prefix_list_apply(ri->prefix[ripng_distribute], | |
612 | (struct prefix *)p) | |
613 | == PREFIX_DENY) { | |
614 | if (IS_RIPNG_DEBUG_PACKET) | |
615 | zlog_debug("%s/%d filtered by prefix-list %s", | |
616 | inet6_ntoa(p->prefix), p->prefixlen, | |
617 | inout); | |
618 | return -1; | |
a94434b6 | 619 | } |
a94434b6 | 620 | } |
a94434b6 | 621 | |
d62a17ae | 622 | /* All interface filter check. */ |
623 | dist = distribute_lookup(NULL); | |
624 | if (dist) { | |
625 | if (dist->list[distribute]) { | |
626 | alist = access_list_lookup(AFI_IP6, | |
627 | dist->list[distribute]); | |
628 | ||
629 | if (alist) { | |
630 | if (access_list_apply(alist, (struct prefix *)p) | |
631 | == FILTER_DENY) { | |
632 | if (IS_RIPNG_DEBUG_PACKET) | |
633 | zlog_debug( | |
634 | "%s/%d filtered by distribute %s", | |
635 | inet6_ntoa(p->prefix), | |
636 | p->prefixlen, inout); | |
637 | return -1; | |
638 | } | |
639 | } | |
a94434b6 | 640 | } |
d62a17ae | 641 | if (dist->prefix[distribute]) { |
642 | plist = prefix_list_lookup(AFI_IP6, | |
643 | dist->prefix[distribute]); | |
644 | ||
645 | if (plist) { | |
646 | if (prefix_list_apply(plist, (struct prefix *)p) | |
647 | == PREFIX_DENY) { | |
648 | if (IS_RIPNG_DEBUG_PACKET) | |
649 | zlog_debug( | |
650 | "%s/%d filtered by prefix-list %s", | |
651 | inet6_ntoa(p->prefix), | |
652 | p->prefixlen, inout); | |
653 | return -1; | |
654 | } | |
655 | } | |
a94434b6 | 656 | } |
a94434b6 | 657 | } |
d62a17ae | 658 | return 0; |
a94434b6 | 659 | } |
660 | ||
718e3744 | 661 | /* Process RIPng route according to RFC2080. */ |
d62a17ae | 662 | static void ripng_route_process(struct rte *rte, struct sockaddr_in6 *from, |
663 | struct ripng_nexthop *ripng_nexthop, | |
664 | struct interface *ifp) | |
665 | { | |
666 | int ret; | |
667 | struct prefix_ipv6 p; | |
668 | struct route_node *rp; | |
669 | struct ripng_info *rinfo = NULL, newinfo; | |
670 | struct ripng_interface *ri; | |
671 | struct in6_addr *nexthop; | |
672 | int same = 0; | |
673 | struct list *list = NULL; | |
674 | struct listnode *node = NULL; | |
675 | ||
676 | /* Make prefix structure. */ | |
677 | memset(&p, 0, sizeof(struct prefix_ipv6)); | |
678 | p.family = AF_INET6; | |
679 | /* p.prefix = rte->addr; */ | |
680 | IPV6_ADDR_COPY(&p.prefix, &rte->addr); | |
681 | p.prefixlen = rte->prefixlen; | |
682 | ||
683 | /* Make sure mask is applied. */ | |
684 | /* XXX We have to check the prefix is valid or not before call | |
685 | apply_mask_ipv6. */ | |
686 | apply_mask_ipv6(&p); | |
687 | ||
688 | /* Apply input filters. */ | |
689 | ri = ifp->info; | |
690 | ||
691 | ret = ripng_filter(RIPNG_FILTER_IN, &p, ri); | |
692 | if (ret < 0) | |
693 | return; | |
694 | ||
695 | memset(&newinfo, 0, sizeof(newinfo)); | |
696 | newinfo.type = ZEBRA_ROUTE_RIPNG; | |
697 | newinfo.sub_type = RIPNG_ROUTE_RTE; | |
698 | if (ripng_nexthop->flag == RIPNG_NEXTHOP_ADDRESS) | |
699 | newinfo.nexthop = ripng_nexthop->address; | |
700 | else | |
701 | newinfo.nexthop = from->sin6_addr; | |
702 | newinfo.from = from->sin6_addr; | |
703 | newinfo.ifindex = ifp->ifindex; | |
704 | newinfo.metric = rte->metric; | |
705 | newinfo.metric_out = rte->metric; /* XXX */ | |
706 | newinfo.tag = ntohs(rte->tag); /* XXX */ | |
707 | ||
708 | /* Modify entry. */ | |
709 | if (ri->routemap[RIPNG_FILTER_IN]) { | |
710 | int ret; | |
711 | ||
712 | ret = route_map_apply(ri->routemap[RIPNG_FILTER_IN], | |
713 | (struct prefix *)&p, RMAP_RIPNG, | |
714 | &newinfo); | |
715 | ||
716 | if (ret == RMAP_DENYMATCH) { | |
717 | if (IS_RIPNG_DEBUG_PACKET) | |
718 | zlog_debug( | |
719 | "RIPng %s/%d is filtered by route-map in", | |
720 | inet6_ntoa(p.prefix), p.prefixlen); | |
721 | return; | |
722 | } | |
718e3744 | 723 | |
d62a17ae | 724 | /* Get back the object */ |
725 | if (ripng_nexthop->flag == RIPNG_NEXTHOP_ADDRESS) { | |
726 | if (!IPV6_ADDR_SAME(&newinfo.nexthop, | |
727 | &ripng_nexthop->address)) { | |
728 | /* the nexthop get changed by the routemap */ | |
729 | if (IN6_IS_ADDR_LINKLOCAL(&newinfo.nexthop)) | |
730 | ripng_nexthop->address = | |
731 | newinfo.nexthop; | |
732 | else | |
733 | ripng_nexthop->address = in6addr_any; | |
734 | } | |
735 | } else { | |
736 | if (!IPV6_ADDR_SAME(&newinfo.nexthop, | |
737 | &from->sin6_addr)) { | |
738 | /* the nexthop get changed by the routemap */ | |
739 | if (IN6_IS_ADDR_LINKLOCAL(&newinfo.nexthop)) { | |
740 | ripng_nexthop->flag = | |
741 | RIPNG_NEXTHOP_ADDRESS; | |
742 | ripng_nexthop->address = | |
743 | newinfo.nexthop; | |
744 | } | |
745 | } | |
746 | } | |
747 | rte->tag = htons(newinfo.tag_out); /* XXX */ | |
9d303b37 DL |
748 | rte->metric = |
749 | newinfo.metric_out; /* XXX: the routemap uses the | |
750 | metric_out field */ | |
d62a17ae | 751 | } |
a94434b6 | 752 | |
d62a17ae | 753 | /* Once the entry has been validated, update the metric by |
754 | * adding the cost of the network on wich the message | |
755 | * arrived. If the result is greater than infinity, use infinity | |
756 | * (RFC2453 Sec. 3.9.2) | |
757 | **/ | |
758 | ||
759 | /* Zebra ripngd can handle offset-list in. */ | |
760 | ret = ripng_offset_list_apply_in(&p, ifp, &rte->metric); | |
761 | ||
762 | /* If offset-list does not modify the metric use interface's | |
763 | * one. */ | |
764 | if (!ret) | |
765 | rte->metric += ifp->metric ? ifp->metric : 1; | |
766 | ||
767 | if (rte->metric > RIPNG_METRIC_INFINITY) | |
768 | rte->metric = RIPNG_METRIC_INFINITY; | |
769 | ||
770 | /* Set nexthop pointer. */ | |
771 | if (ripng_nexthop->flag == RIPNG_NEXTHOP_ADDRESS) | |
772 | nexthop = &ripng_nexthop->address; | |
773 | else | |
774 | nexthop = &from->sin6_addr; | |
775 | ||
776 | /* Lookup RIPng routing table. */ | |
777 | rp = route_node_get(ripng->table, (struct prefix *)&p); | |
778 | ||
779 | newinfo.rp = rp; | |
780 | newinfo.nexthop = *nexthop; | |
781 | newinfo.metric = rte->metric; | |
782 | newinfo.tag = ntohs(rte->tag); | |
783 | ||
784 | /* Check to see whether there is already RIPng route on the table. */ | |
785 | if ((list = rp->info) != NULL) | |
786 | for (ALL_LIST_ELEMENTS_RO(list, node, rinfo)) { | |
787 | /* Need to compare with redistributed entry or local | |
788 | * entry */ | |
789 | if (!ripng_route_rte(rinfo)) | |
790 | break; | |
791 | ||
792 | if (IPV6_ADDR_SAME(&rinfo->from, &from->sin6_addr) | |
793 | && IPV6_ADDR_SAME(&rinfo->nexthop, nexthop)) | |
794 | break; | |
795 | ||
796 | if (!listnextnode(node)) { | |
797 | /* Not found in the list */ | |
798 | ||
799 | if (rte->metric > rinfo->metric) { | |
800 | /* New route has a greater metric. | |
801 | * Discard it. */ | |
802 | route_unlock_node(rp); | |
803 | return; | |
804 | } | |
805 | ||
806 | if (rte->metric < rinfo->metric) | |
807 | /* New route has a smaller metric. | |
808 | * Replace the ECMP list | |
809 | * with the new one in below. */ | |
810 | break; | |
811 | ||
812 | /* Metrics are same. Unless ECMP is disabled, | |
813 | * keep "rinfo" null and | |
814 | * the new route is added in the ECMP list in | |
815 | * below. */ | |
816 | if (!ripng->ecmp) | |
817 | break; | |
818 | } | |
819 | } | |
718e3744 | 820 | |
d62a17ae | 821 | if (rinfo) { |
822 | /* Redistributed route check. */ | |
823 | if (rinfo->type != ZEBRA_ROUTE_RIPNG | |
824 | && rinfo->metric != RIPNG_METRIC_INFINITY) { | |
825 | route_unlock_node(rp); | |
826 | return; | |
827 | } | |
a94434b6 | 828 | |
d62a17ae | 829 | /* Local static route. */ |
830 | if (rinfo->type == ZEBRA_ROUTE_RIPNG | |
831 | && ((rinfo->sub_type == RIPNG_ROUTE_STATIC) | |
832 | || (rinfo->sub_type == RIPNG_ROUTE_DEFAULT)) | |
833 | && rinfo->metric != RIPNG_METRIC_INFINITY) { | |
834 | route_unlock_node(rp); | |
835 | return; | |
836 | } | |
837 | } | |
a94434b6 | 838 | |
d62a17ae | 839 | if (!rinfo) { |
840 | /* Now, check to see whether there is already an explicit route | |
841 | for the destination prefix. If there is no such route, add | |
842 | this route to the routing table, unless the metric is | |
843 | infinity (there is no point in adding a route which | |
844 | unusable). */ | |
845 | if (rte->metric != RIPNG_METRIC_INFINITY) | |
846 | ripng_ecmp_add(&newinfo); | |
3e7a9652 DS |
847 | else |
848 | route_unlock_node(rp); | |
d62a17ae | 849 | } else { |
850 | /* If there is an existing route, compare the next hop address | |
851 | to the address of the router from which the datagram came. | |
852 | If this datagram is from the same router as the existing | |
853 | route, reinitialize the timeout. */ | |
854 | same = (IN6_ARE_ADDR_EQUAL(&rinfo->from, &from->sin6_addr) | |
855 | && (rinfo->ifindex == ifp->ifindex)); | |
856 | ||
857 | /* | |
858 | * RFC 2080 - Section 2.4.2: | |
859 | * "If the new metric is the same as the old one, examine the | |
860 | * timeout | |
861 | * for the existing route. If it is at least halfway to the | |
862 | * expiration | |
863 | * point, switch to the new route. This heuristic is optional, | |
864 | * but | |
865 | * highly recommended". | |
866 | */ | |
867 | if (!ripng->ecmp && !same && rinfo->metric == rte->metric | |
868 | && rinfo->t_timeout | |
869 | && (thread_timer_remain_second(rinfo->t_timeout) | |
870 | < (ripng->timeout_time / 2))) { | |
871 | ripng_ecmp_replace(&newinfo); | |
872 | } | |
873 | /* Next, compare the metrics. If the datagram is from the same | |
874 | router as the existing route, and the new metric is different | |
875 | than the old one; or, if the new metric is lower than the old | |
876 | one; do the following actions: */ | |
877 | else if ((same && rinfo->metric != rte->metric) | |
878 | || rte->metric < rinfo->metric) { | |
879 | if (listcount(list) == 1) { | |
880 | if (newinfo.metric != RIPNG_METRIC_INFINITY) | |
881 | ripng_ecmp_replace(&newinfo); | |
882 | else | |
883 | ripng_ecmp_delete(rinfo); | |
884 | } else { | |
885 | if (newinfo.metric < rinfo->metric) | |
886 | ripng_ecmp_replace(&newinfo); | |
887 | else /* newinfo.metric > rinfo->metric */ | |
888 | ripng_ecmp_delete(rinfo); | |
889 | } | |
890 | } else /* same & no change */ | |
891 | ripng_timeout_update(rinfo); | |
892 | ||
893 | /* Unlock tempolary lock of the route. */ | |
894 | route_unlock_node(rp); | |
895 | } | |
718e3744 | 896 | } |
897 | ||
d62a17ae | 898 | /* Add redistributed route to RIPng table. */ |
899 | void ripng_redistribute_add(int type, int sub_type, struct prefix_ipv6 *p, | |
900 | ifindex_t ifindex, struct in6_addr *nexthop, | |
901 | route_tag_t tag) | |
902 | { | |
903 | struct route_node *rp; | |
904 | struct ripng_info *rinfo = NULL, newinfo; | |
905 | struct list *list = NULL; | |
906 | ||
907 | /* Redistribute route */ | |
908 | if (IN6_IS_ADDR_LINKLOCAL(&p->prefix)) | |
909 | return; | |
910 | if (IN6_IS_ADDR_LOOPBACK(&p->prefix)) | |
911 | return; | |
912 | ||
913 | rp = route_node_get(ripng->table, (struct prefix *)p); | |
914 | ||
915 | memset(&newinfo, 0, sizeof(struct ripng_info)); | |
916 | newinfo.type = type; | |
917 | newinfo.sub_type = sub_type; | |
918 | newinfo.ifindex = ifindex; | |
919 | newinfo.metric = 1; | |
920 | if (tag <= UINT16_MAX) /* RIPng only supports 16 bit tags */ | |
921 | newinfo.tag = tag; | |
922 | newinfo.rp = rp; | |
923 | if (nexthop && IN6_IS_ADDR_LINKLOCAL(nexthop)) | |
924 | newinfo.nexthop = *nexthop; | |
925 | ||
926 | if ((list = rp->info) != NULL && listcount(list) != 0) { | |
927 | rinfo = listgetdata(listhead(list)); | |
928 | ||
929 | if (rinfo->type == ZEBRA_ROUTE_CONNECT | |
930 | && rinfo->sub_type == RIPNG_ROUTE_INTERFACE | |
931 | && rinfo->metric != RIPNG_METRIC_INFINITY) { | |
932 | route_unlock_node(rp); | |
933 | return; | |
934 | } | |
935 | ||
936 | /* Manually configured RIPng route check. | |
937 | * They have the precedence on all the other entries. | |
938 | **/ | |
939 | if (rinfo->type == ZEBRA_ROUTE_RIPNG | |
940 | && ((rinfo->sub_type == RIPNG_ROUTE_STATIC) | |
941 | || (rinfo->sub_type == RIPNG_ROUTE_DEFAULT))) { | |
942 | if (type != ZEBRA_ROUTE_RIPNG | |
943 | || ((sub_type != RIPNG_ROUTE_STATIC) | |
944 | && (sub_type != RIPNG_ROUTE_DEFAULT))) { | |
945 | route_unlock_node(rp); | |
946 | return; | |
947 | } | |
948 | } | |
718e3744 | 949 | |
d62a17ae | 950 | ripng_ecmp_replace(&newinfo); |
951 | route_unlock_node(rp); | |
952 | } else | |
953 | ripng_ecmp_add(&newinfo); | |
954 | ||
955 | if (IS_RIPNG_DEBUG_EVENT) { | |
956 | if (!nexthop) | |
957 | zlog_debug( | |
958 | "Redistribute new prefix %s/%d on the interface %s", | |
959 | inet6_ntoa(p->prefix), p->prefixlen, | |
960 | ifindex2ifname(ifindex, VRF_DEFAULT)); | |
961 | else | |
962 | zlog_debug( | |
963 | "Redistribute new prefix %s/%d with nexthop %s on the interface %s", | |
964 | inet6_ntoa(p->prefix), p->prefixlen, | |
965 | inet6_ntoa(*nexthop), | |
966 | ifindex2ifname(ifindex, VRF_DEFAULT)); | |
967 | } | |
718e3744 | 968 | |
d62a17ae | 969 | ripng_event(RIPNG_TRIGGERED_UPDATE, 0); |
970 | } | |
718e3744 | 971 | |
d62a17ae | 972 | /* Delete redistributed route to RIPng table. */ |
973 | void ripng_redistribute_delete(int type, int sub_type, struct prefix_ipv6 *p, | |
974 | ifindex_t ifindex) | |
975 | { | |
976 | struct route_node *rp; | |
977 | struct ripng_info *rinfo; | |
978 | ||
979 | if (IN6_IS_ADDR_LINKLOCAL(&p->prefix)) | |
980 | return; | |
981 | if (IN6_IS_ADDR_LOOPBACK(&p->prefix)) | |
982 | return; | |
983 | ||
984 | rp = route_node_lookup(ripng->table, (struct prefix *)p); | |
985 | ||
986 | if (rp) { | |
987 | struct list *list = rp->info; | |
988 | ||
989 | if (list != NULL && listcount(list) != 0) { | |
990 | rinfo = listgetdata(listhead(list)); | |
991 | if (rinfo != NULL && rinfo->type == type | |
992 | && rinfo->sub_type == sub_type | |
993 | && rinfo->ifindex == ifindex) { | |
994 | /* Perform poisoned reverse. */ | |
995 | rinfo->metric = RIPNG_METRIC_INFINITY; | |
996 | RIPNG_TIMER_ON(rinfo->t_garbage_collect, | |
997 | ripng_garbage_collect, | |
998 | ripng->garbage_time); | |
999 | RIPNG_TIMER_OFF(rinfo->t_timeout); | |
1000 | ||
1001 | /* Aggregate count decrement. */ | |
1002 | ripng_aggregate_decrement(rp, rinfo); | |
1003 | ||
1004 | rinfo->flags |= RIPNG_RTF_CHANGED; | |
1005 | ||
1006 | if (IS_RIPNG_DEBUG_EVENT) | |
1007 | zlog_debug( | |
1008 | "Poisone %s/%d on the interface %s with an " | |
1009 | "infinity metric [delete]", | |
1010 | inet6_ntoa(p->prefix), | |
1011 | p->prefixlen, | |
1012 | ifindex2ifname(ifindex, | |
1013 | VRF_DEFAULT)); | |
1014 | ||
1015 | ripng_event(RIPNG_TRIGGERED_UPDATE, 0); | |
1016 | } | |
1017 | } | |
1018 | route_unlock_node(rp); | |
1019 | } | |
718e3744 | 1020 | } |
1021 | ||
1022 | /* Withdraw redistributed route. */ | |
d62a17ae | 1023 | void ripng_redistribute_withdraw(int type) |
1024 | { | |
1025 | struct route_node *rp; | |
1026 | struct ripng_info *rinfo = NULL; | |
1027 | struct list *list = NULL; | |
1028 | ||
1029 | if (!ripng) | |
1030 | return; | |
1031 | ||
1032 | for (rp = route_top(ripng->table); rp; rp = route_next(rp)) | |
1033 | if ((list = rp->info) != NULL) { | |
1034 | rinfo = listgetdata(listhead(list)); | |
1035 | if ((rinfo->type == type) | |
1036 | && (rinfo->sub_type != RIPNG_ROUTE_INTERFACE)) { | |
1037 | /* Perform poisoned reverse. */ | |
1038 | rinfo->metric = RIPNG_METRIC_INFINITY; | |
1039 | RIPNG_TIMER_ON(rinfo->t_garbage_collect, | |
1040 | ripng_garbage_collect, | |
1041 | ripng->garbage_time); | |
1042 | RIPNG_TIMER_OFF(rinfo->t_timeout); | |
1043 | ||
1044 | /* Aggregate count decrement. */ | |
1045 | ripng_aggregate_decrement(rp, rinfo); | |
1046 | ||
1047 | rinfo->flags |= RIPNG_RTF_CHANGED; | |
1048 | ||
1049 | if (IS_RIPNG_DEBUG_EVENT) { | |
1050 | struct prefix_ipv6 *p = | |
1051 | (struct prefix_ipv6 *)&rp->p; | |
1052 | ||
1053 | zlog_debug( | |
1054 | "Poisone %s/%d on the interface %s [withdraw]", | |
1055 | inet6_ntoa(p->prefix), | |
1056 | p->prefixlen, | |
1057 | ifindex2ifname(rinfo->ifindex, | |
1058 | VRF_DEFAULT)); | |
1059 | } | |
1060 | ||
1061 | ripng_event(RIPNG_TRIGGERED_UPDATE, 0); | |
1062 | } | |
1063 | } | |
1064 | } | |
718e3744 | 1065 | |
d62a17ae | 1066 | /* RIP routing information. */ |
1067 | static void ripng_response_process(struct ripng_packet *packet, int size, | |
1068 | struct sockaddr_in6 *from, | |
1069 | struct interface *ifp, int hoplimit) | |
1070 | { | |
1071 | caddr_t lim; | |
1072 | struct rte *rte; | |
1073 | struct ripng_nexthop nexthop; | |
1074 | ||
1075 | /* RFC2080 2.4.2 Response Messages: | |
1076 | The Response must be ignored if it is not from the RIPng port. */ | |
1077 | if (ntohs(from->sin6_port) != RIPNG_PORT_DEFAULT) { | |
1078 | zlog_warn("RIPng packet comes from non RIPng port %d from %s", | |
1079 | ntohs(from->sin6_port), inet6_ntoa(from->sin6_addr)); | |
1080 | ripng_peer_bad_packet(from); | |
1081 | return; | |
1082 | } | |
718e3744 | 1083 | |
d62a17ae | 1084 | /* The datagram's IPv6 source address should be checked to see |
1085 | whether the datagram is from a valid neighbor; the source of the | |
1086 | datagram must be a link-local address. */ | |
1087 | if (!IN6_IS_ADDR_LINKLOCAL(&from->sin6_addr)) { | |
1088 | zlog_warn("RIPng packet comes from non link local address %s", | |
1089 | inet6_ntoa(from->sin6_addr)); | |
1090 | ripng_peer_bad_packet(from); | |
1091 | return; | |
1092 | } | |
a94434b6 | 1093 | |
d62a17ae | 1094 | /* It is also worth checking to see whether the response is from one |
1095 | of the router's own addresses. Interfaces on broadcast networks | |
1096 | may receive copies of their own multicasts immediately. If a | |
1097 | router processes its own output as new input, confusion is likely, | |
1098 | and such datagrams must be ignored. */ | |
1099 | if (ripng_lladdr_check(ifp, &from->sin6_addr)) { | |
1100 | zlog_warn( | |
1101 | "RIPng packet comes from my own link local address %s", | |
1102 | inet6_ntoa(from->sin6_addr)); | |
1103 | ripng_peer_bad_packet(from); | |
1104 | return; | |
1105 | } | |
a94434b6 | 1106 | |
d62a17ae | 1107 | /* As an additional check, periodic advertisements must have their |
1108 | hop counts set to 255, and inbound, multicast packets sent from the | |
1109 | RIPng port (i.e. periodic advertisement or triggered update | |
1110 | packets) must be examined to ensure that the hop count is 255. */ | |
1111 | if (hoplimit >= 0 && hoplimit != 255) { | |
1112 | zlog_warn( | |
1113 | "RIPng packet comes with non 255 hop count %d from %s", | |
1114 | hoplimit, inet6_ntoa(from->sin6_addr)); | |
1115 | ripng_peer_bad_packet(from); | |
1116 | return; | |
1117 | } | |
718e3744 | 1118 | |
d62a17ae | 1119 | /* Update RIPng peer. */ |
1120 | ripng_peer_update(from, packet->version); | |
a94434b6 | 1121 | |
d62a17ae | 1122 | /* Reset nexthop. */ |
1123 | memset(&nexthop, 0, sizeof(struct ripng_nexthop)); | |
1124 | nexthop.flag = RIPNG_NEXTHOP_UNSPEC; | |
718e3744 | 1125 | |
d62a17ae | 1126 | /* Set RTE pointer. */ |
1127 | rte = packet->rte; | |
718e3744 | 1128 | |
d62a17ae | 1129 | for (lim = ((caddr_t)packet) + size; (caddr_t)rte < lim; rte++) { |
1130 | /* First of all, we have to check this RTE is next hop RTE or | |
1131 | not. Next hop RTE is completely different with normal RTE so | |
1132 | we need special treatment. */ | |
1133 | if (rte->metric == RIPNG_METRIC_NEXTHOP) { | |
1134 | ripng_nexthop_rte(rte, from, &nexthop); | |
1135 | continue; | |
1136 | } | |
718e3744 | 1137 | |
d62a17ae | 1138 | /* RTE information validation. */ |
1139 | ||
1140 | /* - is the destination prefix valid (e.g., not a multicast | |
1141 | prefix and not a link-local address) A link-local address | |
1142 | should never be present in an RTE. */ | |
1143 | if (IN6_IS_ADDR_MULTICAST(&rte->addr)) { | |
1144 | zlog_warn( | |
1145 | "Destination prefix is a multicast address %s/%d [%d]", | |
1146 | inet6_ntoa(rte->addr), rte->prefixlen, | |
1147 | rte->metric); | |
1148 | ripng_peer_bad_route(from); | |
1149 | continue; | |
1150 | } | |
1151 | if (IN6_IS_ADDR_LINKLOCAL(&rte->addr)) { | |
1152 | zlog_warn( | |
1153 | "Destination prefix is a link-local address %s/%d [%d]", | |
1154 | inet6_ntoa(rte->addr), rte->prefixlen, | |
1155 | rte->metric); | |
1156 | ripng_peer_bad_route(from); | |
1157 | continue; | |
1158 | } | |
1159 | if (IN6_IS_ADDR_LOOPBACK(&rte->addr)) { | |
1160 | zlog_warn( | |
1161 | "Destination prefix is a loopback address %s/%d [%d]", | |
1162 | inet6_ntoa(rte->addr), rte->prefixlen, | |
1163 | rte->metric); | |
1164 | ripng_peer_bad_route(from); | |
1165 | continue; | |
1166 | } | |
718e3744 | 1167 | |
d62a17ae | 1168 | /* - is the prefix length valid (i.e., between 0 and 128, |
1169 | inclusive) */ | |
1170 | if (rte->prefixlen > 128) { | |
1171 | zlog_warn("Invalid prefix length %s/%d from %s%%%s", | |
1172 | inet6_ntoa(rte->addr), rte->prefixlen, | |
1173 | inet6_ntoa(from->sin6_addr), ifp->name); | |
1174 | ripng_peer_bad_route(from); | |
1175 | continue; | |
1176 | } | |
718e3744 | 1177 | |
d62a17ae | 1178 | /* - is the metric valid (i.e., between 1 and 16, inclusive) */ |
1179 | if (!(rte->metric >= 1 && rte->metric <= 16)) { | |
1180 | zlog_warn("Invalid metric %d from %s%%%s", rte->metric, | |
1181 | inet6_ntoa(from->sin6_addr), ifp->name); | |
1182 | ripng_peer_bad_route(from); | |
1183 | continue; | |
1184 | } | |
718e3744 | 1185 | |
d62a17ae | 1186 | /* Vincent: XXX Should we compute the direclty reachable nexthop |
1187 | * for our RIPng network ? | |
1188 | **/ | |
718e3744 | 1189 | |
d62a17ae | 1190 | /* Routing table updates. */ |
1191 | ripng_route_process(rte, from, &nexthop, ifp); | |
1192 | } | |
718e3744 | 1193 | } |
1194 | ||
1195 | /* Response to request message. */ | |
d62a17ae | 1196 | static void ripng_request_process(struct ripng_packet *packet, int size, |
1197 | struct sockaddr_in6 *from, | |
1198 | struct interface *ifp) | |
1199 | { | |
1200 | caddr_t lim; | |
1201 | struct rte *rte; | |
1202 | struct prefix_ipv6 p; | |
1203 | struct route_node *rp; | |
1204 | struct ripng_info *rinfo; | |
1205 | struct ripng_interface *ri; | |
1206 | ||
1207 | /* Does not reponse to the requests on the loopback interfaces */ | |
1208 | if (if_is_loopback(ifp)) | |
1209 | return; | |
1210 | ||
1211 | /* Check RIPng process is enabled on this interface. */ | |
1212 | ri = ifp->info; | |
1213 | if (!ri->running) | |
1214 | return; | |
1215 | ||
1216 | /* When passive interface is specified, suppress responses */ | |
1217 | if (ri->passive) | |
1218 | return; | |
1219 | ||
1220 | /* RIPng peer update. */ | |
1221 | ripng_peer_update(from, packet->version); | |
1222 | ||
1223 | lim = ((caddr_t)packet) + size; | |
1224 | rte = packet->rte; | |
1225 | ||
1226 | /* The Request is processed entry by entry. If there are no | |
1227 | entries, no response is given. */ | |
1228 | if (lim == (caddr_t)rte) | |
1229 | return; | |
1230 | ||
1231 | /* There is one special case. If there is exactly one entry in the | |
1232 | request, and it has a destination prefix of zero, a prefix length | |
1233 | of zero, and a metric of infinity (i.e., 16), then this is a | |
1234 | request to send the entire routing table. In that case, a call | |
1235 | is made to the output process to send the routing table to the | |
1236 | requesting address/port. */ | |
1237 | if (lim == ((caddr_t)(rte + 1)) && IN6_IS_ADDR_UNSPECIFIED(&rte->addr) | |
1238 | && rte->prefixlen == 0 && rte->metric == RIPNG_METRIC_INFINITY) { | |
1239 | /* All route with split horizon */ | |
1240 | ripng_output_process(ifp, from, ripng_all_route); | |
1241 | } else { | |
1242 | /* Except for this special case, processing is quite simple. | |
1243 | Examine the list of RTEs in the Request one by one. For each | |
1244 | entry, look up the destination in the router's routing | |
1245 | database and, if there is a route, put that route's metric in | |
1246 | the metric field of the RTE. If there is no explicit route | |
1247 | to the specified destination, put infinity in the metric | |
1248 | field. Once all the entries have been filled in, change the | |
1249 | command from Request to Response and send the datagram back | |
1250 | to the requestor. */ | |
1251 | memset(&p, 0, sizeof(struct prefix_ipv6)); | |
1252 | p.family = AF_INET6; | |
1253 | ||
1254 | for (; ((caddr_t)rte) < lim; rte++) { | |
1255 | p.prefix = rte->addr; | |
1256 | p.prefixlen = rte->prefixlen; | |
1257 | apply_mask_ipv6(&p); | |
1258 | ||
1259 | rp = route_node_lookup(ripng->table, | |
1260 | (struct prefix *)&p); | |
1261 | ||
1262 | if (rp) { | |
1263 | rinfo = listgetdata( | |
1264 | listhead((struct list *)rp->info)); | |
1265 | rte->metric = rinfo->metric; | |
1266 | route_unlock_node(rp); | |
1267 | } else | |
1268 | rte->metric = RIPNG_METRIC_INFINITY; | |
1269 | } | |
1270 | packet->command = RIPNG_RESPONSE; | |
1271 | ||
1272 | ripng_send_packet((caddr_t)packet, size, from, ifp); | |
1273 | } | |
718e3744 | 1274 | } |
1275 | ||
1276 | /* First entry point of reading RIPng packet. */ | |
d62a17ae | 1277 | static int ripng_read(struct thread *thread) |
1278 | { | |
1279 | int len; | |
1280 | int sock; | |
1281 | struct sockaddr_in6 from; | |
1282 | struct ripng_packet *packet; | |
1283 | ifindex_t ifindex = 0; | |
1284 | struct interface *ifp; | |
1285 | int hoplimit = -1; | |
1286 | ||
1287 | /* Check ripng is active and alive. */ | |
1288 | assert(ripng != NULL); | |
1289 | assert(ripng->sock >= 0); | |
1290 | ||
1291 | /* Fetch thread data and set read pointer to empty for event | |
1292 | managing. `sock' sould be same as ripng->sock. */ | |
1293 | sock = THREAD_FD(thread); | |
1294 | ripng->t_read = NULL; | |
1295 | ||
1296 | /* Add myself to the next event. */ | |
1297 | ripng_event(RIPNG_READ, sock); | |
1298 | ||
1299 | /* Read RIPng packet. */ | |
1300 | len = ripng_recv_packet(sock, STREAM_DATA(ripng->ibuf), | |
1301 | STREAM_SIZE(ripng->ibuf), &from, &ifindex, | |
1302 | &hoplimit); | |
1303 | if (len < 0) { | |
1304 | zlog_warn("RIPng recvfrom failed: %s.", safe_strerror(errno)); | |
1305 | return len; | |
1306 | } | |
718e3744 | 1307 | |
d62a17ae | 1308 | /* Check RTE boundary. RTE size (Packet length - RIPng header size |
1309 | (4)) must be multiple size of one RTE size (20). */ | |
1310 | if (((len - 4) % 20) != 0) { | |
1311 | zlog_warn("RIPng invalid packet size %d from %s", len, | |
1312 | inet6_ntoa(from.sin6_addr)); | |
1313 | ripng_peer_bad_packet(&from); | |
1314 | return 0; | |
1315 | } | |
718e3744 | 1316 | |
d62a17ae | 1317 | packet = (struct ripng_packet *)STREAM_DATA(ripng->ibuf); |
1318 | ifp = if_lookup_by_index(ifindex, VRF_DEFAULT); | |
718e3744 | 1319 | |
d62a17ae | 1320 | /* RIPng packet received. */ |
1321 | if (IS_RIPNG_DEBUG_EVENT) | |
1322 | zlog_debug("RIPng packet received from %s port %d on %s", | |
1323 | inet6_ntoa(from.sin6_addr), ntohs(from.sin6_port), | |
1324 | ifp ? ifp->name : "unknown"); | |
718e3744 | 1325 | |
d62a17ae | 1326 | /* Logging before packet checking. */ |
1327 | if (IS_RIPNG_DEBUG_RECV) | |
1328 | ripng_packet_dump(packet, len, "RECV"); | |
718e3744 | 1329 | |
d62a17ae | 1330 | /* Packet comes from unknown interface. */ |
1331 | if (ifp == NULL) { | |
1332 | zlog_warn("RIPng packet comes from unknown interface %d", | |
1333 | ifindex); | |
1334 | return 0; | |
1335 | } | |
718e3744 | 1336 | |
d62a17ae | 1337 | /* Packet version mismatch checking. */ |
1338 | if (packet->version != ripng->version) { | |
1339 | zlog_warn( | |
1340 | "RIPng packet version %d doesn't fit to my version %d", | |
1341 | packet->version, ripng->version); | |
1342 | ripng_peer_bad_packet(&from); | |
1343 | return 0; | |
1344 | } | |
718e3744 | 1345 | |
d62a17ae | 1346 | /* Process RIPng packet. */ |
1347 | switch (packet->command) { | |
1348 | case RIPNG_REQUEST: | |
1349 | ripng_request_process(packet, len, &from, ifp); | |
1350 | break; | |
1351 | case RIPNG_RESPONSE: | |
1352 | ripng_response_process(packet, len, &from, ifp, hoplimit); | |
1353 | break; | |
1354 | default: | |
1355 | zlog_warn("Invalid RIPng command %d", packet->command); | |
1356 | ripng_peer_bad_packet(&from); | |
1357 | break; | |
1358 | } | |
1359 | return 0; | |
718e3744 | 1360 | } |
1361 | ||
1362 | /* Walk down the RIPng routing table then clear changed flag. */ | |
d62a17ae | 1363 | static void ripng_clear_changed_flag(void) |
718e3744 | 1364 | { |
d62a17ae | 1365 | struct route_node *rp; |
1366 | struct ripng_info *rinfo = NULL; | |
1367 | struct list *list = NULL; | |
1368 | struct listnode *listnode = NULL; | |
718e3744 | 1369 | |
d62a17ae | 1370 | for (rp = route_top(ripng->table); rp; rp = route_next(rp)) |
1371 | if ((list = rp->info) != NULL) | |
1372 | for (ALL_LIST_ELEMENTS_RO(list, listnode, rinfo)) { | |
1373 | UNSET_FLAG(rinfo->flags, RIPNG_RTF_CHANGED); | |
1374 | /* This flag can be set only on the first entry. | |
1375 | */ | |
1376 | break; | |
1377 | } | |
718e3744 | 1378 | } |
1379 | ||
1380 | /* Regular update of RIPng route. Send all routing formation to RIPng | |
1381 | enabled interface. */ | |
d62a17ae | 1382 | static int ripng_update(struct thread *t) |
718e3744 | 1383 | { |
f4e14fdb | 1384 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 1385 | struct interface *ifp; |
1386 | struct ripng_interface *ri; | |
718e3744 | 1387 | |
d62a17ae | 1388 | /* Clear update timer thread. */ |
1389 | ripng->t_update = NULL; | |
718e3744 | 1390 | |
d62a17ae | 1391 | /* Logging update event. */ |
1392 | if (IS_RIPNG_DEBUG_EVENT) | |
1393 | zlog_debug("RIPng update timer expired!"); | |
718e3744 | 1394 | |
d62a17ae | 1395 | /* Supply routes to each interface. */ |
451fda4f | 1396 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 1397 | ri = ifp->info; |
718e3744 | 1398 | |
d62a17ae | 1399 | if (if_is_loopback(ifp) || !if_is_up(ifp)) |
1400 | continue; | |
718e3744 | 1401 | |
d62a17ae | 1402 | if (!ri->running) |
1403 | continue; | |
718e3744 | 1404 | |
d62a17ae | 1405 | /* When passive interface is specified, suppress announce to the |
1406 | interface. */ | |
1407 | if (ri->passive) | |
1408 | continue; | |
718e3744 | 1409 | |
1410 | #if RIPNG_ADVANCED | |
d62a17ae | 1411 | if (ri->ri_send == RIPNG_SEND_OFF) { |
1412 | if (IS_RIPNG_DEBUG_EVENT) | |
1413 | zlog_debug( | |
1414 | "[Event] RIPng send to if %d is suppressed by config", | |
1415 | ifp->ifindex); | |
1416 | continue; | |
1417 | } | |
718e3744 | 1418 | #endif /* RIPNG_ADVANCED */ |
1419 | ||
d62a17ae | 1420 | ripng_output_process(ifp, NULL, ripng_all_route); |
1421 | } | |
718e3744 | 1422 | |
d62a17ae | 1423 | /* Triggered updates may be suppressed if a regular update is due by |
1424 | the time the triggered update would be sent. */ | |
1425 | if (ripng->t_triggered_interval) { | |
1426 | thread_cancel(ripng->t_triggered_interval); | |
1427 | ripng->t_triggered_interval = NULL; | |
1428 | } | |
1429 | ripng->trigger = 0; | |
718e3744 | 1430 | |
d62a17ae | 1431 | /* Reset flush event. */ |
1432 | ripng_event(RIPNG_UPDATE_EVENT, 0); | |
718e3744 | 1433 | |
d62a17ae | 1434 | return 0; |
718e3744 | 1435 | } |
1436 | ||
1437 | /* Triggered update interval timer. */ | |
d62a17ae | 1438 | static int ripng_triggered_interval(struct thread *t) |
718e3744 | 1439 | { |
d62a17ae | 1440 | ripng->t_triggered_interval = NULL; |
718e3744 | 1441 | |
d62a17ae | 1442 | if (ripng->trigger) { |
1443 | ripng->trigger = 0; | |
1444 | ripng_triggered_update(t); | |
1445 | } | |
1446 | return 0; | |
1447 | } | |
718e3744 | 1448 | |
1449 | /* Execute triggered update. */ | |
d62a17ae | 1450 | int ripng_triggered_update(struct thread *t) |
718e3744 | 1451 | { |
f4e14fdb | 1452 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 1453 | struct interface *ifp; |
1454 | struct ripng_interface *ri; | |
1455 | int interval; | |
718e3744 | 1456 | |
d62a17ae | 1457 | ripng->t_triggered_update = NULL; |
718e3744 | 1458 | |
d62a17ae | 1459 | /* Cancel interval timer. */ |
1460 | if (ripng->t_triggered_interval) { | |
1461 | thread_cancel(ripng->t_triggered_interval); | |
1462 | ripng->t_triggered_interval = NULL; | |
1463 | } | |
1464 | ripng->trigger = 0; | |
718e3744 | 1465 | |
d62a17ae | 1466 | /* Logging triggered update. */ |
1467 | if (IS_RIPNG_DEBUG_EVENT) | |
1468 | zlog_debug("RIPng triggered update!"); | |
718e3744 | 1469 | |
d62a17ae | 1470 | /* Split Horizon processing is done when generating triggered |
1471 | updates as well as normal updates (see section 2.6). */ | |
451fda4f | 1472 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 1473 | ri = ifp->info; |
718e3744 | 1474 | |
d62a17ae | 1475 | if (if_is_loopback(ifp) || !if_is_up(ifp)) |
1476 | continue; | |
718e3744 | 1477 | |
d62a17ae | 1478 | if (!ri->running) |
1479 | continue; | |
718e3744 | 1480 | |
d62a17ae | 1481 | /* When passive interface is specified, suppress announce to the |
1482 | interface. */ | |
1483 | if (ri->passive) | |
1484 | continue; | |
718e3744 | 1485 | |
d62a17ae | 1486 | ripng_output_process(ifp, NULL, ripng_changed_route); |
1487 | } | |
718e3744 | 1488 | |
d62a17ae | 1489 | /* Once all of the triggered updates have been generated, the route |
1490 | change flags should be cleared. */ | |
1491 | ripng_clear_changed_flag(); | |
718e3744 | 1492 | |
d62a17ae | 1493 | /* After a triggered update is sent, a timer should be set for a |
1494 | random interval between 1 and 5 seconds. If other changes that | |
1495 | would trigger updates occur before the timer expires, a single | |
1496 | update is triggered when the timer expires. */ | |
1497 | interval = (random() % 5) + 1; | |
718e3744 | 1498 | |
d62a17ae | 1499 | ripng->t_triggered_interval = NULL; |
1500 | thread_add_timer(master, ripng_triggered_interval, NULL, interval, | |
1501 | &ripng->t_triggered_interval); | |
718e3744 | 1502 | |
d62a17ae | 1503 | return 0; |
718e3744 | 1504 | } |
1505 | ||
1506 | /* Write routing table entry to the stream and return next index of | |
1507 | the routing table entry in the stream. */ | |
d62a17ae | 1508 | int ripng_write_rte(int num, struct stream *s, struct prefix_ipv6 *p, |
d7c0a89a | 1509 | struct in6_addr *nexthop, uint16_t tag, uint8_t metric) |
d62a17ae | 1510 | { |
1511 | /* RIPng packet header. */ | |
1512 | if (num == 0) { | |
1513 | stream_putc(s, RIPNG_RESPONSE); | |
1514 | stream_putc(s, RIPNG_V1); | |
1515 | stream_putw(s, 0); | |
1516 | } | |
718e3744 | 1517 | |
d62a17ae | 1518 | /* Write routing table entry. */ |
1519 | if (!nexthop) | |
d7c0a89a | 1520 | stream_write(s, (uint8_t *)&p->prefix, sizeof(struct in6_addr)); |
d62a17ae | 1521 | else |
d7c0a89a | 1522 | stream_write(s, (uint8_t *)nexthop, sizeof(struct in6_addr)); |
d62a17ae | 1523 | stream_putw(s, tag); |
1524 | if (p) | |
1525 | stream_putc(s, p->prefixlen); | |
1526 | else | |
1527 | stream_putc(s, 0); | |
1528 | stream_putc(s, metric); | |
718e3744 | 1529 | |
d62a17ae | 1530 | return ++num; |
718e3744 | 1531 | } |
1532 | ||
1533 | /* Send RESPONSE message to specified destination. */ | |
d62a17ae | 1534 | void ripng_output_process(struct interface *ifp, struct sockaddr_in6 *to, |
1535 | int route_type) | |
1536 | { | |
1537 | int ret; | |
1538 | struct route_node *rp; | |
1539 | struct ripng_info *rinfo; | |
1540 | struct ripng_interface *ri; | |
1541 | struct ripng_aggregate *aggregate; | |
1542 | struct prefix_ipv6 *p; | |
1543 | struct list *ripng_rte_list; | |
1544 | struct list *list = NULL; | |
1545 | struct listnode *listnode = NULL; | |
1546 | ||
1547 | if (IS_RIPNG_DEBUG_EVENT) { | |
1548 | if (to) | |
1549 | zlog_debug("RIPng update routes to neighbor %s", | |
1550 | inet6_ntoa(to->sin6_addr)); | |
1551 | else | |
1552 | zlog_debug("RIPng update routes on interface %s", | |
1553 | ifp->name); | |
1554 | } | |
a94434b6 | 1555 | |
d62a17ae | 1556 | /* Get RIPng interface. */ |
1557 | ri = ifp->info; | |
1558 | ||
1559 | ripng_rte_list = ripng_rte_new(); | |
1560 | ||
1561 | for (rp = route_top(ripng->table); rp; rp = route_next(rp)) { | |
1562 | if ((list = rp->info) != NULL | |
1563 | && (rinfo = listgetdata(listhead(list))) != NULL | |
1564 | && rinfo->suppress == 0) { | |
1565 | /* If no route-map are applied, the RTE will be these | |
1566 | * following | |
1567 | * informations. | |
1568 | */ | |
1569 | p = (struct prefix_ipv6 *)&rp->p; | |
1570 | rinfo->metric_out = rinfo->metric; | |
1571 | rinfo->tag_out = rinfo->tag; | |
1572 | memset(&rinfo->nexthop_out, 0, | |
1573 | sizeof(rinfo->nexthop_out)); | |
1574 | /* In order to avoid some local loops, | |
1575 | * if the RIPng route has a nexthop via this interface, | |
1576 | * keep the nexthop, | |
1577 | * otherwise set it to 0. The nexthop should not be | |
1578 | * propagated | |
1579 | * beyond the local broadcast/multicast area in order | |
1580 | * to avoid an IGP multi-level recursive look-up. | |
1581 | */ | |
1582 | if (rinfo->ifindex == ifp->ifindex) | |
1583 | rinfo->nexthop_out = rinfo->nexthop; | |
1584 | ||
1585 | /* Apply output filters. */ | |
1586 | ret = ripng_filter(RIPNG_FILTER_OUT, p, ri); | |
1587 | if (ret < 0) | |
1588 | continue; | |
1589 | ||
1590 | /* Changed route only output. */ | |
1591 | if (route_type == ripng_changed_route | |
1592 | && (!(rinfo->flags & RIPNG_RTF_CHANGED))) | |
1593 | continue; | |
1594 | ||
1595 | /* Split horizon. */ | |
1596 | if (ri->split_horizon == RIPNG_SPLIT_HORIZON) { | |
1597 | /* We perform split horizon for RIPng routes. */ | |
1598 | int suppress = 0; | |
1599 | struct ripng_info *tmp_rinfo = NULL; | |
1600 | ||
1601 | for (ALL_LIST_ELEMENTS_RO(list, listnode, | |
1602 | tmp_rinfo)) | |
1603 | if (tmp_rinfo->type == ZEBRA_ROUTE_RIPNG | |
1604 | && tmp_rinfo->ifindex | |
1605 | == ifp->ifindex) { | |
1606 | suppress = 1; | |
1607 | break; | |
1608 | } | |
1609 | if (suppress) | |
1610 | continue; | |
1611 | } | |
1612 | ||
1613 | /* Preparation for route-map. */ | |
1614 | rinfo->metric_set = 0; | |
1615 | /* nexthop_out, | |
1616 | * metric_out | |
1617 | * and tag_out are already initialized. | |
1618 | */ | |
1619 | ||
1620 | /* Interface route-map */ | |
1621 | if (ri->routemap[RIPNG_FILTER_OUT]) { | |
1622 | int ret; | |
1623 | ||
1624 | ret = route_map_apply( | |
1625 | ri->routemap[RIPNG_FILTER_OUT], | |
1626 | (struct prefix *)p, RMAP_RIPNG, rinfo); | |
1627 | ||
1628 | if (ret == RMAP_DENYMATCH) { | |
1629 | if (IS_RIPNG_DEBUG_PACKET) | |
1630 | zlog_debug( | |
1631 | "RIPng %s/%d is filtered by route-map out", | |
1632 | inet6_ntoa(p->prefix), | |
1633 | p->prefixlen); | |
1634 | continue; | |
1635 | } | |
1636 | } | |
1637 | ||
1638 | /* Redistribute route-map. */ | |
1639 | if (ripng->route_map[rinfo->type].name) { | |
1640 | int ret; | |
1641 | ||
1642 | ret = route_map_apply( | |
1643 | ripng->route_map[rinfo->type].map, | |
1644 | (struct prefix *)p, RMAP_RIPNG, rinfo); | |
1645 | ||
1646 | if (ret == RMAP_DENYMATCH) { | |
1647 | if (IS_RIPNG_DEBUG_PACKET) | |
1648 | zlog_debug( | |
1649 | "RIPng %s/%d is filtered by route-map", | |
1650 | inet6_ntoa(p->prefix), | |
1651 | p->prefixlen); | |
1652 | continue; | |
1653 | } | |
1654 | } | |
1655 | ||
1656 | /* When the route-map does not set metric. */ | |
1657 | if (!rinfo->metric_set) { | |
1658 | /* If the redistribute metric is set. */ | |
1659 | if (ripng->route_map[rinfo->type].metric_config | |
1660 | && rinfo->metric != RIPNG_METRIC_INFINITY) { | |
1661 | rinfo->metric_out = | |
1662 | ripng->route_map[rinfo->type] | |
1663 | .metric; | |
1664 | } else { | |
1665 | /* If the route is not connected or | |
1666 | localy generated | |
1667 | one, use default-metric value */ | |
1668 | if (rinfo->type != ZEBRA_ROUTE_RIPNG | |
1669 | && rinfo->type | |
1670 | != ZEBRA_ROUTE_CONNECT | |
1671 | && rinfo->metric | |
1672 | != RIPNG_METRIC_INFINITY) | |
1673 | rinfo->metric_out = | |
1674 | ripng->default_metric; | |
1675 | } | |
1676 | } | |
1677 | ||
1678 | /* Apply offset-list */ | |
1679 | if (rinfo->metric_out != RIPNG_METRIC_INFINITY) | |
1680 | ripng_offset_list_apply_out(p, ifp, | |
1681 | &rinfo->metric_out); | |
1682 | ||
1683 | if (rinfo->metric_out > RIPNG_METRIC_INFINITY) | |
1684 | rinfo->metric_out = RIPNG_METRIC_INFINITY; | |
1685 | ||
1686 | /* Perform split-horizon with poisoned reverse | |
1687 | * for RIPng routes. | |
1688 | **/ | |
1689 | if (ri->split_horizon | |
1690 | == RIPNG_SPLIT_HORIZON_POISONED_REVERSE) { | |
1691 | struct ripng_info *tmp_rinfo = NULL; | |
1692 | ||
1693 | for (ALL_LIST_ELEMENTS_RO(list, listnode, | |
1694 | tmp_rinfo)) | |
1695 | if ((tmp_rinfo->type | |
1696 | == ZEBRA_ROUTE_RIPNG) | |
1697 | && tmp_rinfo->ifindex | |
1698 | == ifp->ifindex) | |
1699 | rinfo->metric_out = | |
1700 | RIPNG_METRIC_INFINITY; | |
1701 | } | |
1702 | ||
1703 | /* Add RTE to the list */ | |
1704 | ripng_rte_add(ripng_rte_list, p, rinfo, NULL); | |
718e3744 | 1705 | } |
a94434b6 | 1706 | |
d62a17ae | 1707 | /* Process the aggregated RTE entry */ |
1708 | if ((aggregate = rp->aggregate) != NULL && aggregate->count > 0 | |
1709 | && aggregate->suppress == 0) { | |
1710 | /* If no route-map are applied, the RTE will be these | |
1711 | * following | |
1712 | * informations. | |
1713 | */ | |
1714 | p = (struct prefix_ipv6 *)&rp->p; | |
1715 | aggregate->metric_set = 0; | |
1716 | aggregate->metric_out = aggregate->metric; | |
1717 | aggregate->tag_out = aggregate->tag; | |
1718 | memset(&aggregate->nexthop_out, 0, | |
1719 | sizeof(aggregate->nexthop_out)); | |
1720 | ||
1721 | /* Apply output filters.*/ | |
1722 | ret = ripng_filter(RIPNG_FILTER_OUT, p, ri); | |
1723 | if (ret < 0) | |
1724 | continue; | |
1725 | ||
1726 | /* Interface route-map */ | |
1727 | if (ri->routemap[RIPNG_FILTER_OUT]) { | |
1728 | int ret; | |
1729 | struct ripng_info newinfo; | |
1730 | ||
1731 | /* let's cast the aggregate structure to | |
1732 | * ripng_info */ | |
1733 | memset(&newinfo, 0, sizeof(struct ripng_info)); | |
1734 | /* the nexthop is :: */ | |
1735 | newinfo.metric = aggregate->metric; | |
1736 | newinfo.metric_out = aggregate->metric_out; | |
1737 | newinfo.tag = aggregate->tag; | |
1738 | newinfo.tag_out = aggregate->tag_out; | |
1739 | ||
1740 | ret = route_map_apply( | |
1741 | ri->routemap[RIPNG_FILTER_OUT], | |
1742 | (struct prefix *)p, RMAP_RIPNG, | |
1743 | &newinfo); | |
1744 | ||
1745 | if (ret == RMAP_DENYMATCH) { | |
1746 | if (IS_RIPNG_DEBUG_PACKET) | |
1747 | zlog_debug( | |
1748 | "RIPng %s/%d is filtered by route-map out", | |
1749 | inet6_ntoa(p->prefix), | |
1750 | p->prefixlen); | |
1751 | continue; | |
1752 | } | |
1753 | ||
1754 | aggregate->metric_out = newinfo.metric_out; | |
1755 | aggregate->tag_out = newinfo.tag_out; | |
1756 | if (IN6_IS_ADDR_LINKLOCAL(&newinfo.nexthop_out)) | |
1757 | aggregate->nexthop_out = | |
1758 | newinfo.nexthop_out; | |
1759 | } | |
1760 | ||
1761 | /* There is no redistribute routemap for the aggregated | |
1762 | * RTE */ | |
1763 | ||
1764 | /* Changed route only output. */ | |
1765 | /* XXX, vincent, in order to increase time convergence, | |
1766 | * it should be announced if a child has changed. | |
1767 | */ | |
1768 | if (route_type == ripng_changed_route) | |
1769 | continue; | |
1770 | ||
1771 | /* Apply offset-list */ | |
1772 | if (aggregate->metric_out != RIPNG_METRIC_INFINITY) | |
1773 | ripng_offset_list_apply_out( | |
1774 | p, ifp, &aggregate->metric_out); | |
1775 | ||
1776 | if (aggregate->metric_out > RIPNG_METRIC_INFINITY) | |
1777 | aggregate->metric_out = RIPNG_METRIC_INFINITY; | |
1778 | ||
1779 | /* Add RTE to the list */ | |
1780 | ripng_rte_add(ripng_rte_list, p, NULL, aggregate); | |
1781 | } | |
718e3744 | 1782 | } |
1783 | ||
d62a17ae | 1784 | /* Flush the list */ |
1785 | ripng_rte_send(ripng_rte_list, ifp, to); | |
1786 | ripng_rte_free(ripng_rte_list); | |
718e3744 | 1787 | } |
1788 | ||
1789 | /* Create new RIPng instance and set it to global variable. */ | |
d62a17ae | 1790 | static int ripng_create(void) |
718e3744 | 1791 | { |
d62a17ae | 1792 | /* ripng should be NULL. */ |
1793 | assert(ripng == NULL); | |
718e3744 | 1794 | |
d62a17ae | 1795 | /* Allocaste RIPng instance. */ |
1796 | ripng = XCALLOC(MTYPE_RIPNG, sizeof(struct ripng)); | |
718e3744 | 1797 | |
d62a17ae | 1798 | /* Default version and timer values. */ |
1799 | ripng->version = RIPNG_V1; | |
1800 | ripng->update_time = RIPNG_UPDATE_TIMER_DEFAULT; | |
1801 | ripng->timeout_time = RIPNG_TIMEOUT_TIMER_DEFAULT; | |
1802 | ripng->garbage_time = RIPNG_GARBAGE_TIMER_DEFAULT; | |
1803 | ripng->default_metric = RIPNG_DEFAULT_METRIC_DEFAULT; | |
1804 | ||
1805 | /* Make buffer. */ | |
1806 | ripng->ibuf = stream_new(RIPNG_MAX_PACKET_SIZE * 5); | |
1807 | ripng->obuf = stream_new(RIPNG_MAX_PACKET_SIZE); | |
1808 | ||
1809 | /* Initialize RIPng routig table. */ | |
1810 | ripng->table = route_table_init(); | |
1811 | ripng->route = route_table_init(); | |
1812 | ripng->aggregate = route_table_init(); | |
718e3744 | 1813 | |
d62a17ae | 1814 | /* Make socket. */ |
1815 | ripng->sock = ripng_make_socket(); | |
1816 | if (ripng->sock < 0) | |
1817 | return ripng->sock; | |
718e3744 | 1818 | |
d62a17ae | 1819 | /* Threads. */ |
1820 | ripng_event(RIPNG_READ, ripng->sock); | |
1821 | ripng_event(RIPNG_UPDATE_EVENT, 1); | |
718e3744 | 1822 | |
d62a17ae | 1823 | return 0; |
718e3744 | 1824 | } |
1825 | ||
a94434b6 | 1826 | /* Send RIPng request to the interface. */ |
d62a17ae | 1827 | int ripng_request(struct interface *ifp) |
718e3744 | 1828 | { |
d62a17ae | 1829 | struct rte *rte; |
1830 | struct ripng_packet ripng_packet; | |
718e3744 | 1831 | |
d62a17ae | 1832 | /* In default ripd doesn't send RIP_REQUEST to the loopback interface. |
1833 | */ | |
1834 | if (if_is_loopback(ifp)) | |
1835 | return 0; | |
a94434b6 | 1836 | |
d62a17ae | 1837 | /* If interface is down, don't send RIP packet. */ |
1838 | if (!if_is_up(ifp)) | |
1839 | return 0; | |
a94434b6 | 1840 | |
d62a17ae | 1841 | if (IS_RIPNG_DEBUG_EVENT) |
1842 | zlog_debug("RIPng send request to %s", ifp->name); | |
718e3744 | 1843 | |
d62a17ae | 1844 | memset(&ripng_packet, 0, sizeof(ripng_packet)); |
1845 | ripng_packet.command = RIPNG_REQUEST; | |
1846 | ripng_packet.version = RIPNG_V1; | |
1847 | rte = ripng_packet.rte; | |
1848 | rte->metric = RIPNG_METRIC_INFINITY; | |
718e3744 | 1849 | |
d62a17ae | 1850 | return ripng_send_packet((caddr_t)&ripng_packet, sizeof(ripng_packet), |
1851 | NULL, ifp); | |
718e3744 | 1852 | } |
1853 | ||
6b0655a2 | 1854 | |
d62a17ae | 1855 | static int ripng_update_jitter(int time) |
718e3744 | 1856 | { |
d62a17ae | 1857 | return ((random() % (time + 1)) - (time / 2)); |
718e3744 | 1858 | } |
1859 | ||
d62a17ae | 1860 | void ripng_event(enum ripng_event event, int sock) |
718e3744 | 1861 | { |
d62a17ae | 1862 | int jitter = 0; |
718e3744 | 1863 | |
d62a17ae | 1864 | switch (event) { |
1865 | case RIPNG_READ: | |
1866 | thread_add_read(master, ripng_read, NULL, sock, &ripng->t_read); | |
1867 | break; | |
1868 | case RIPNG_UPDATE_EVENT: | |
1869 | if (ripng->t_update) { | |
1870 | thread_cancel(ripng->t_update); | |
1871 | ripng->t_update = NULL; | |
1872 | } | |
1873 | /* Update timer jitter. */ | |
1874 | jitter = ripng_update_jitter(ripng->update_time); | |
1875 | ||
1876 | ripng->t_update = NULL; | |
1877 | thread_add_timer(master, ripng_update, NULL, | |
1878 | sock ? 2 : ripng->update_time + jitter, | |
1879 | &ripng->t_update); | |
1880 | break; | |
1881 | case RIPNG_TRIGGERED_UPDATE: | |
1882 | if (ripng->t_triggered_interval) | |
1883 | ripng->trigger = 1; | |
1884 | else | |
1885 | thread_add_event(master, ripng_triggered_update, NULL, | |
1886 | 0, &ripng->t_triggered_update); | |
1887 | break; | |
1888 | default: | |
1889 | break; | |
1890 | } | |
718e3744 | 1891 | } |
6b0655a2 | 1892 | |
718e3744 | 1893 | |
718e3744 | 1894 | /* Print out routes update time. */ |
d62a17ae | 1895 | static void ripng_vty_out_uptime(struct vty *vty, struct ripng_info *rinfo) |
718e3744 | 1896 | { |
d62a17ae | 1897 | time_t clock; |
1898 | struct tm *tm; | |
718e3744 | 1899 | #define TIME_BUF 25 |
d62a17ae | 1900 | char timebuf[TIME_BUF]; |
1901 | struct thread *thread; | |
1902 | ||
1903 | if ((thread = rinfo->t_timeout) != NULL) { | |
1904 | clock = thread_timer_remain_second(thread); | |
1905 | tm = gmtime(&clock); | |
1906 | strftime(timebuf, TIME_BUF, "%M:%S", tm); | |
1907 | vty_out(vty, "%5s", timebuf); | |
1908 | } else if ((thread = rinfo->t_garbage_collect) != NULL) { | |
1909 | clock = thread_timer_remain_second(thread); | |
1910 | tm = gmtime(&clock); | |
1911 | strftime(timebuf, TIME_BUF, "%M:%S", tm); | |
1912 | vty_out(vty, "%5s", timebuf); | |
1913 | } | |
718e3744 | 1914 | } |
1915 | ||
d62a17ae | 1916 | static char *ripng_route_subtype_print(struct ripng_info *rinfo) |
1917 | { | |
1918 | static char str[3]; | |
1919 | memset(str, 0, 3); | |
1920 | ||
1921 | if (rinfo->suppress) | |
1922 | strcat(str, "S"); | |
1923 | ||
1924 | switch (rinfo->sub_type) { | |
1925 | case RIPNG_ROUTE_RTE: | |
1926 | strcat(str, "n"); | |
1927 | break; | |
1928 | case RIPNG_ROUTE_STATIC: | |
1929 | strcat(str, "s"); | |
1930 | break; | |
1931 | case RIPNG_ROUTE_DEFAULT: | |
1932 | strcat(str, "d"); | |
1933 | break; | |
1934 | case RIPNG_ROUTE_REDISTRIBUTE: | |
1935 | strcat(str, "r"); | |
1936 | break; | |
1937 | case RIPNG_ROUTE_INTERFACE: | |
1938 | strcat(str, "i"); | |
1939 | break; | |
1940 | default: | |
1941 | strcat(str, "?"); | |
1942 | break; | |
1943 | } | |
a94434b6 | 1944 | |
d62a17ae | 1945 | return str; |
a94434b6 | 1946 | } |
1947 | ||
718e3744 | 1948 | DEFUN (show_ipv6_ripng, |
1949 | show_ipv6_ripng_cmd, | |
1950 | "show ipv6 ripng", | |
1951 | SHOW_STR | |
8d0f15fd | 1952 | IPV6_STR |
718e3744 | 1953 | "Show RIPng routes\n") |
1954 | { | |
d62a17ae | 1955 | struct route_node *rp; |
1956 | struct ripng_info *rinfo; | |
1957 | struct ripng_aggregate *aggregate; | |
1958 | struct prefix_ipv6 *p; | |
1959 | struct list *list = NULL; | |
1960 | struct listnode *listnode = NULL; | |
1961 | int len; | |
1962 | ||
1963 | if (!ripng) | |
1964 | return CMD_SUCCESS; | |
1965 | ||
1966 | /* Header of display. */ | |
1967 | vty_out(vty, | |
1968 | "Codes: R - RIPng, C - connected, S - Static, O - OSPF, B - BGP\n" | |
1969 | "Sub-codes:\n" | |
1970 | " (n) - normal, (s) - static, (d) - default, (r) - redistribute,\n" | |
1971 | " (i) - interface, (a/S) - aggregated/Suppressed\n\n" | |
1972 | " Network Next Hop Via Metric Tag Time\n"); | |
1973 | ||
1974 | for (rp = route_top(ripng->table); rp; rp = route_next(rp)) { | |
1975 | if ((aggregate = rp->aggregate) != NULL) { | |
1976 | p = (struct prefix_ipv6 *)&rp->p; | |
718e3744 | 1977 | |
1978 | #ifdef DEBUG | |
d62a17ae | 1979 | vty_out(vty, "R(a) %d/%d %s/%d ", aggregate->count, |
1980 | aggregate->suppress, inet6_ntoa(p->prefix), | |
1981 | p->prefixlen); | |
718e3744 | 1982 | #else |
d62a17ae | 1983 | vty_out(vty, "R(a) %s/%d ", inet6_ntoa(p->prefix), |
1984 | p->prefixlen); | |
718e3744 | 1985 | #endif /* DEBUG */ |
d62a17ae | 1986 | vty_out(vty, "\n"); |
1987 | vty_out(vty, "%*s", 18, " "); | |
718e3744 | 1988 | |
d62a17ae | 1989 | vty_out(vty, "%*s", 28, " "); |
1990 | vty_out(vty, "self %2d %3" ROUTE_TAG_PRI "\n", | |
1991 | aggregate->metric, (route_tag_t)aggregate->tag); | |
1992 | } | |
718e3744 | 1993 | |
d62a17ae | 1994 | if ((list = rp->info) != NULL) |
1995 | for (ALL_LIST_ELEMENTS_RO(list, listnode, rinfo)) { | |
1996 | p = (struct prefix_ipv6 *)&rp->p; | |
718e3744 | 1997 | |
1998 | #ifdef DEBUG | |
d62a17ae | 1999 | vty_out(vty, "%c(%s) 0/%d %s/%d ", |
2000 | zebra_route_char(rinfo->type), | |
2001 | ripng_route_subtype_print(rinfo), | |
2002 | rinfo->suppress, inet6_ntoa(p->prefix), | |
2003 | p->prefixlen); | |
718e3744 | 2004 | #else |
d62a17ae | 2005 | vty_out(vty, "%c(%s) %s/%d ", |
2006 | zebra_route_char(rinfo->type), | |
2007 | ripng_route_subtype_print(rinfo), | |
2008 | inet6_ntoa(p->prefix), p->prefixlen); | |
718e3744 | 2009 | #endif /* DEBUG */ |
d62a17ae | 2010 | vty_out(vty, "\n"); |
2011 | vty_out(vty, "%*s", 18, " "); | |
2012 | len = vty_out(vty, "%s", | |
2013 | inet6_ntoa(rinfo->nexthop)); | |
2014 | ||
2015 | len = 28 - len; | |
2016 | if (len > 0) | |
51f7fe84 | 2017 | vty_out(vty, "%*s", len, " "); |
d62a17ae | 2018 | |
2019 | /* from */ | |
2020 | if ((rinfo->type == ZEBRA_ROUTE_RIPNG) | |
2021 | && (rinfo->sub_type == RIPNG_ROUTE_RTE)) { | |
2022 | len = vty_out( | |
2023 | vty, "%s", | |
2024 | ifindex2ifname(rinfo->ifindex, | |
2025 | VRF_DEFAULT)); | |
2026 | } else if (rinfo->metric | |
2027 | == RIPNG_METRIC_INFINITY) { | |
2028 | len = vty_out(vty, "kill"); | |
2029 | } else | |
2030 | len = vty_out(vty, "self"); | |
2031 | ||
2032 | len = 9 - len; | |
2033 | if (len > 0) | |
2034 | vty_out(vty, "%*s", len, " "); | |
2035 | ||
2036 | vty_out(vty, " %2d %3" ROUTE_TAG_PRI " ", | |
2037 | rinfo->metric, (route_tag_t)rinfo->tag); | |
2038 | ||
2039 | /* time */ | |
2040 | if ((rinfo->type == ZEBRA_ROUTE_RIPNG) | |
2041 | && (rinfo->sub_type == RIPNG_ROUTE_RTE)) { | |
2042 | /* RTE from remote RIP routers */ | |
2043 | ripng_vty_out_uptime(vty, rinfo); | |
2044 | } else if (rinfo->metric | |
2045 | == RIPNG_METRIC_INFINITY) { | |
2046 | /* poisonous reversed routes (gc) */ | |
2047 | ripng_vty_out_uptime(vty, rinfo); | |
2048 | } | |
2049 | ||
2050 | vty_out(vty, "\n"); | |
2051 | } | |
718e3744 | 2052 | } |
718e3744 | 2053 | |
d62a17ae | 2054 | return CMD_SUCCESS; |
718e3744 | 2055 | } |
2056 | ||
a94434b6 | 2057 | DEFUN (show_ipv6_ripng_status, |
2058 | show_ipv6_ripng_status_cmd, | |
2059 | "show ipv6 ripng status", | |
2060 | SHOW_STR | |
8d0f15fd | 2061 | IPV6_STR |
a94434b6 | 2062 | "Show RIPng routes\n" |
2063 | "IPv6 routing protocol process parameters and statistics\n") | |
2064 | { | |
f4e14fdb | 2065 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 2066 | struct interface *ifp; |
a94434b6 | 2067 | |
d62a17ae | 2068 | if (!ripng) |
2069 | return CMD_SUCCESS; | |
a94434b6 | 2070 | |
d62a17ae | 2071 | vty_out(vty, "Routing Protocol is \"RIPng\"\n"); |
2072 | vty_out(vty, " Sending updates every %ld seconds with +/-50%%,", | |
2073 | ripng->update_time); | |
2074 | vty_out(vty, " next due in %lu seconds\n", | |
2075 | thread_timer_remain_second(ripng->t_update)); | |
2076 | vty_out(vty, " Timeout after %ld seconds,", ripng->timeout_time); | |
2077 | vty_out(vty, " garbage collect after %ld seconds\n", | |
2078 | ripng->garbage_time); | |
a94434b6 | 2079 | |
d62a17ae | 2080 | /* Filtering status show. */ |
2081 | config_show_distribute(vty); | |
a94434b6 | 2082 | |
d62a17ae | 2083 | /* Default metric information. */ |
2084 | vty_out(vty, " Default redistribution metric is %d\n", | |
2085 | ripng->default_metric); | |
a94434b6 | 2086 | |
d62a17ae | 2087 | /* Redistribute information. */ |
2088 | vty_out(vty, " Redistributing:"); | |
2089 | ripng_redistribute_write(vty, 0); | |
2090 | vty_out(vty, "\n"); | |
a94434b6 | 2091 | |
d62a17ae | 2092 | vty_out(vty, " Default version control: send version %d,", |
2093 | ripng->version); | |
2094 | vty_out(vty, " receive version %d \n", ripng->version); | |
a94434b6 | 2095 | |
d62a17ae | 2096 | vty_out(vty, " Interface Send Recv\n"); |
a94434b6 | 2097 | |
451fda4f | 2098 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 2099 | struct ripng_interface *ri; |
2100 | ||
2101 | ri = ifp->info; | |
a94434b6 | 2102 | |
d62a17ae | 2103 | if (ri->enable_network || ri->enable_interface) { |
a94434b6 | 2104 | |
d62a17ae | 2105 | vty_out(vty, " %-17s%-3d %-3d\n", ifp->name, |
2106 | ripng->version, ripng->version); | |
2107 | } | |
a94434b6 | 2108 | } |
a94434b6 | 2109 | |
d62a17ae | 2110 | vty_out(vty, " Routing for Networks:\n"); |
2111 | ripng_network_write(vty, 0); | |
a94434b6 | 2112 | |
d62a17ae | 2113 | vty_out(vty, " Routing Information Sources:\n"); |
2114 | vty_out(vty, | |
2115 | " Gateway BadPackets BadRoutes Distance Last Update\n"); | |
2116 | ripng_peer_display(vty); | |
a94434b6 | 2117 | |
d62a17ae | 2118 | return CMD_SUCCESS; |
a94434b6 | 2119 | } |
2120 | ||
d7f966ab RW |
2121 | DEFUN (clear_ipv6_rip, |
2122 | clear_ipv6_rip_cmd, | |
2123 | "clear ipv6 ripng", | |
2124 | CLEAR_STR | |
2125 | IPV6_STR | |
d911a12a | 2126 | "Clear IPv6 RIP database\n") |
d7f966ab | 2127 | { |
d62a17ae | 2128 | struct route_node *rp; |
2129 | struct ripng_info *rinfo; | |
2130 | struct list *list; | |
2131 | struct listnode *listnode; | |
d7f966ab | 2132 | |
d62a17ae | 2133 | /* Clear received RIPng routes */ |
2134 | for (rp = route_top(ripng->table); rp; rp = route_next(rp)) { | |
2135 | list = rp->info; | |
2136 | if (list == NULL) | |
2137 | continue; | |
d7f966ab | 2138 | |
d62a17ae | 2139 | for (ALL_LIST_ELEMENTS_RO(list, listnode, rinfo)) { |
2140 | if (!ripng_route_rte(rinfo)) | |
2141 | continue; | |
d7f966ab | 2142 | |
d62a17ae | 2143 | if (CHECK_FLAG(rinfo->flags, RIPNG_RTF_FIB)) |
2144 | ripng_zebra_ipv6_delete(rp); | |
2145 | break; | |
2146 | } | |
d7f966ab | 2147 | |
d62a17ae | 2148 | if (rinfo) { |
2149 | RIPNG_TIMER_OFF(rinfo->t_timeout); | |
2150 | RIPNG_TIMER_OFF(rinfo->t_garbage_collect); | |
2151 | listnode_delete(list, rinfo); | |
2152 | ripng_info_free(rinfo); | |
2153 | } | |
d7f966ab | 2154 | |
d62a17ae | 2155 | if (list_isempty(list)) { |
acdf5e25 | 2156 | list_delete_and_null(&list); |
d62a17ae | 2157 | rp->info = NULL; |
2158 | route_unlock_node(rp); | |
2159 | } | |
d7f966ab | 2160 | } |
d7f966ab | 2161 | |
d62a17ae | 2162 | return CMD_SUCCESS; |
d7f966ab RW |
2163 | } |
2164 | ||
505e5056 | 2165 | DEFUN_NOSH (router_ripng, |
718e3744 | 2166 | router_ripng_cmd, |
2167 | "router ripng", | |
2168 | "Enable a routing process\n" | |
2169 | "Make RIPng instance command\n") | |
2170 | { | |
d62a17ae | 2171 | int ret; |
718e3744 | 2172 | |
d62a17ae | 2173 | vty->node = RIPNG_NODE; |
718e3744 | 2174 | |
d62a17ae | 2175 | if (!ripng) { |
2176 | ret = ripng_create(); | |
718e3744 | 2177 | |
d62a17ae | 2178 | /* Notice to user we couldn't create RIPng. */ |
2179 | if (ret < 0) { | |
2180 | zlog_warn("can't create RIPng"); | |
2181 | return CMD_WARNING_CONFIG_FAILED; | |
2182 | } | |
718e3744 | 2183 | } |
718e3744 | 2184 | |
d62a17ae | 2185 | return CMD_SUCCESS; |
718e3744 | 2186 | } |
2187 | ||
a94434b6 | 2188 | DEFUN (no_router_ripng, |
2189 | no_router_ripng_cmd, | |
2190 | "no router ripng", | |
2191 | NO_STR | |
2192 | "Enable a routing process\n" | |
2193 | "Make RIPng instance command\n") | |
2194 | { | |
d62a17ae | 2195 | if (ripng) |
2196 | ripng_clean(); | |
2197 | return CMD_SUCCESS; | |
a94434b6 | 2198 | } |
2199 | ||
718e3744 | 2200 | DEFUN (ripng_route, |
2201 | ripng_route_cmd, | |
2202 | "route IPV6ADDR", | |
2203 | "Static route setup\n" | |
2204 | "Set static RIPng route announcement\n") | |
2205 | { | |
d62a17ae | 2206 | int idx_ipv6addr = 1; |
2207 | int ret; | |
2208 | struct prefix_ipv6 p; | |
2209 | struct route_node *rp; | |
718e3744 | 2210 | |
d62a17ae | 2211 | ret = str2prefix_ipv6(argv[idx_ipv6addr]->arg, |
2212 | (struct prefix_ipv6 *)&p); | |
2213 | if (ret <= 0) { | |
2214 | vty_out(vty, "Malformed address\n"); | |
2215 | return CMD_WARNING_CONFIG_FAILED; | |
2216 | } | |
2217 | apply_mask_ipv6(&p); | |
718e3744 | 2218 | |
d62a17ae | 2219 | rp = route_node_get(ripng->route, (struct prefix *)&p); |
2220 | if (rp->info) { | |
2221 | vty_out(vty, "There is already same static route.\n"); | |
2222 | route_unlock_node(rp); | |
851fcbae | 2223 | return CMD_WARNING; |
d62a17ae | 2224 | } |
2225 | rp->info = (void *)1; | |
718e3744 | 2226 | |
d62a17ae | 2227 | ripng_redistribute_add(ZEBRA_ROUTE_RIPNG, RIPNG_ROUTE_STATIC, &p, 0, |
2228 | NULL, 0); | |
718e3744 | 2229 | |
d62a17ae | 2230 | return CMD_SUCCESS; |
718e3744 | 2231 | } |
2232 | ||
2233 | DEFUN (no_ripng_route, | |
2234 | no_ripng_route_cmd, | |
2235 | "no route IPV6ADDR", | |
2236 | NO_STR | |
2237 | "Static route setup\n" | |
2238 | "Delete static RIPng route announcement\n") | |
2239 | { | |
d62a17ae | 2240 | int idx_ipv6addr = 2; |
2241 | int ret; | |
2242 | struct prefix_ipv6 p; | |
2243 | struct route_node *rp; | |
718e3744 | 2244 | |
d62a17ae | 2245 | ret = str2prefix_ipv6(argv[idx_ipv6addr]->arg, |
2246 | (struct prefix_ipv6 *)&p); | |
2247 | if (ret <= 0) { | |
2248 | vty_out(vty, "Malformed address\n"); | |
2249 | return CMD_WARNING_CONFIG_FAILED; | |
2250 | } | |
2251 | apply_mask_ipv6(&p); | |
718e3744 | 2252 | |
d62a17ae | 2253 | rp = route_node_lookup(ripng->route, (struct prefix *)&p); |
2254 | if (!rp) { | |
2255 | vty_out(vty, "Can't find static route.\n"); | |
2256 | return CMD_WARNING_CONFIG_FAILED; | |
2257 | } | |
718e3744 | 2258 | |
d62a17ae | 2259 | ripng_redistribute_delete(ZEBRA_ROUTE_RIPNG, RIPNG_ROUTE_STATIC, &p, 0); |
2260 | route_unlock_node(rp); | |
718e3744 | 2261 | |
d62a17ae | 2262 | rp->info = NULL; |
2263 | route_unlock_node(rp); | |
718e3744 | 2264 | |
d62a17ae | 2265 | return CMD_SUCCESS; |
718e3744 | 2266 | } |
2267 | ||
2268 | DEFUN (ripng_aggregate_address, | |
2269 | ripng_aggregate_address_cmd, | |
2270 | "aggregate-address X:X::X:X/M", | |
2271 | "Set aggregate RIPng route announcement\n" | |
2272 | "Aggregate network\n") | |
2273 | { | |
d62a17ae | 2274 | int idx_ipv6_prefixlen = 1; |
2275 | int ret; | |
2276 | struct prefix p; | |
2277 | struct route_node *node; | |
718e3744 | 2278 | |
d62a17ae | 2279 | ret = str2prefix_ipv6(argv[idx_ipv6_prefixlen]->arg, |
2280 | (struct prefix_ipv6 *)&p); | |
2281 | if (ret <= 0) { | |
2282 | vty_out(vty, "Malformed address\n"); | |
2283 | return CMD_WARNING_CONFIG_FAILED; | |
2284 | } | |
718e3744 | 2285 | |
d62a17ae | 2286 | /* Check aggregate alredy exist or not. */ |
2287 | node = route_node_get(ripng->aggregate, &p); | |
2288 | if (node->info) { | |
2289 | vty_out(vty, "There is already same aggregate route.\n"); | |
2290 | route_unlock_node(node); | |
851fcbae | 2291 | return CMD_WARNING; |
d62a17ae | 2292 | } |
2293 | node->info = (void *)1; | |
718e3744 | 2294 | |
d62a17ae | 2295 | ripng_aggregate_add(&p); |
718e3744 | 2296 | |
d62a17ae | 2297 | return CMD_SUCCESS; |
718e3744 | 2298 | } |
2299 | ||
2300 | DEFUN (no_ripng_aggregate_address, | |
2301 | no_ripng_aggregate_address_cmd, | |
2302 | "no aggregate-address X:X::X:X/M", | |
2303 | NO_STR | |
2304 | "Delete aggregate RIPng route announcement\n" | |
d911a12a | 2305 | "Aggregate network\n") |
718e3744 | 2306 | { |
d62a17ae | 2307 | int idx_ipv6_prefixlen = 2; |
2308 | int ret; | |
2309 | struct prefix p; | |
2310 | struct route_node *rn; | |
718e3744 | 2311 | |
d62a17ae | 2312 | ret = str2prefix_ipv6(argv[idx_ipv6_prefixlen]->arg, |
2313 | (struct prefix_ipv6 *)&p); | |
2314 | if (ret <= 0) { | |
2315 | vty_out(vty, "Malformed address\n"); | |
2316 | return CMD_WARNING_CONFIG_FAILED; | |
2317 | } | |
718e3744 | 2318 | |
d62a17ae | 2319 | rn = route_node_lookup(ripng->aggregate, &p); |
2320 | if (!rn) { | |
2321 | vty_out(vty, "Can't find aggregate route.\n"); | |
2322 | return CMD_WARNING_CONFIG_FAILED; | |
2323 | } | |
2324 | route_unlock_node(rn); | |
2325 | rn->info = NULL; | |
2326 | route_unlock_node(rn); | |
718e3744 | 2327 | |
d62a17ae | 2328 | ripng_aggregate_delete(&p); |
718e3744 | 2329 | |
d62a17ae | 2330 | return CMD_SUCCESS; |
718e3744 | 2331 | } |
2332 | ||
2333 | DEFUN (ripng_default_metric, | |
2334 | ripng_default_metric_cmd, | |
6147e2c6 | 2335 | "default-metric (1-16)", |
718e3744 | 2336 | "Set a metric of redistribute routes\n" |
2337 | "Default metric\n") | |
2338 | { | |
d62a17ae | 2339 | int idx_number = 1; |
2340 | if (ripng) { | |
2341 | ripng->default_metric = atoi(argv[idx_number]->arg); | |
2342 | } | |
2343 | return CMD_SUCCESS; | |
718e3744 | 2344 | } |
2345 | ||
2346 | DEFUN (no_ripng_default_metric, | |
2347 | no_ripng_default_metric_cmd, | |
55c727dd | 2348 | "no default-metric [(1-16)]", |
718e3744 | 2349 | NO_STR |
2350 | "Set a metric of redistribute routes\n" | |
2351 | "Default metric\n") | |
2352 | { | |
d62a17ae | 2353 | if (ripng) { |
2354 | ripng->default_metric = RIPNG_DEFAULT_METRIC_DEFAULT; | |
2355 | } | |
2356 | return CMD_SUCCESS; | |
718e3744 | 2357 | } |
2358 | ||
718e3744 | 2359 | |
2360 | #if 0 | |
2361 | /* RIPng update timer setup. */ | |
2362 | DEFUN (ripng_update_timer, | |
2363 | ripng_update_timer_cmd, | |
2364 | "update-timer SECOND", | |
2365 | "Set RIPng update timer in seconds\n" | |
2366 | "Seconds\n") | |
2367 | { | |
2368 | unsigned long update; | |
2369 | char *endptr = NULL; | |
2370 | ||
2371 | update = strtoul (argv[0], &endptr, 10); | |
2372 | if (update == ULONG_MAX || *endptr != '\0') | |
2373 | { | |
26a429fe | 2374 | vty_out (vty, "update timer value error\n"); |
f1a05de9 | 2375 | return CMD_WARNING_CONFIG_FAILED; |
718e3744 | 2376 | } |
2377 | ||
2378 | ripng->update_time = update; | |
2379 | ||
2380 | ripng_event (RIPNG_UPDATE_EVENT, 0); | |
2381 | return CMD_SUCCESS; | |
2382 | } | |
2383 | ||
2384 | DEFUN (no_ripng_update_timer, | |
2385 | no_ripng_update_timer_cmd, | |
2386 | "no update-timer SECOND", | |
2387 | NO_STR | |
2388 | "Unset RIPng update timer in seconds\n" | |
2389 | "Seconds\n") | |
2390 | { | |
2391 | ripng->update_time = RIPNG_UPDATE_TIMER_DEFAULT; | |
2392 | ripng_event (RIPNG_UPDATE_EVENT, 0); | |
2393 | return CMD_SUCCESS; | |
2394 | } | |
2395 | ||
2396 | /* RIPng timeout timer setup. */ | |
2397 | DEFUN (ripng_timeout_timer, | |
2398 | ripng_timeout_timer_cmd, | |
2399 | "timeout-timer SECOND", | |
2400 | "Set RIPng timeout timer in seconds\n" | |
2401 | "Seconds\n") | |
2402 | { | |
2403 | unsigned long timeout; | |
2404 | char *endptr = NULL; | |
2405 | ||
2406 | timeout = strtoul (argv[0], &endptr, 10); | |
2407 | if (timeout == ULONG_MAX || *endptr != '\0') | |
2408 | { | |
26a429fe | 2409 | vty_out (vty, "timeout timer value error\n"); |
f1a05de9 | 2410 | return CMD_WARNING_CONFIG_FAILED; |
718e3744 | 2411 | } |
2412 | ||
2413 | ripng->timeout_time = timeout; | |
2414 | ||
2415 | return CMD_SUCCESS; | |
2416 | } | |
2417 | ||
2418 | DEFUN (no_ripng_timeout_timer, | |
2419 | no_ripng_timeout_timer_cmd, | |
2420 | "no timeout-timer SECOND", | |
2421 | NO_STR | |
2422 | "Unset RIPng timeout timer in seconds\n" | |
2423 | "Seconds\n") | |
2424 | { | |
2425 | ripng->timeout_time = RIPNG_TIMEOUT_TIMER_DEFAULT; | |
2426 | return CMD_SUCCESS; | |
2427 | } | |
2428 | ||
2429 | /* RIPng garbage timer setup. */ | |
2430 | DEFUN (ripng_garbage_timer, | |
2431 | ripng_garbage_timer_cmd, | |
2432 | "garbage-timer SECOND", | |
2433 | "Set RIPng garbage timer in seconds\n" | |
2434 | "Seconds\n") | |
2435 | { | |
2436 | unsigned long garbage; | |
2437 | char *endptr = NULL; | |
2438 | ||
2439 | garbage = strtoul (argv[0], &endptr, 10); | |
2440 | if (garbage == ULONG_MAX || *endptr != '\0') | |
2441 | { | |
26a429fe | 2442 | vty_out (vty, "garbage timer value error\n"); |
f1a05de9 | 2443 | return CMD_WARNING_CONFIG_FAILED; |
718e3744 | 2444 | } |
2445 | ||
2446 | ripng->garbage_time = garbage; | |
2447 | ||
2448 | return CMD_SUCCESS; | |
2449 | } | |
2450 | ||
2451 | DEFUN (no_ripng_garbage_timer, | |
2452 | no_ripng_garbage_timer_cmd, | |
2453 | "no garbage-timer SECOND", | |
2454 | NO_STR | |
2455 | "Unset RIPng garbage timer in seconds\n" | |
2456 | "Seconds\n") | |
2457 | { | |
2458 | ripng->garbage_time = RIPNG_GARBAGE_TIMER_DEFAULT; | |
2459 | return CMD_SUCCESS; | |
2460 | } | |
2461 | #endif /* 0 */ | |
2462 | ||
2463 | DEFUN (ripng_timers, | |
2464 | ripng_timers_cmd, | |
6147e2c6 | 2465 | "timers basic (0-65535) (0-65535) (0-65535)", |
718e3744 | 2466 | "RIPng timers setup\n" |
2467 | "Basic timer\n" | |
2468 | "Routing table update timer value in second. Default is 30.\n" | |
2469 | "Routing information timeout timer. Default is 180.\n" | |
2470 | "Garbage collection timer. Default is 120.\n") | |
2471 | { | |
d62a17ae | 2472 | int idx_number = 2; |
2473 | int idx_number_2 = 3; | |
2474 | int idx_number_3 = 4; | |
2475 | unsigned long update; | |
2476 | unsigned long timeout; | |
2477 | unsigned long garbage; | |
718e3744 | 2478 | |
d62a17ae | 2479 | update = strtoul(argv[idx_number]->arg, NULL, 10); |
2480 | timeout = strtoul(argv[idx_number_2]->arg, NULL, 10); | |
2481 | garbage = strtoul(argv[idx_number_3]->arg, NULL, 10); | |
718e3744 | 2482 | |
d62a17ae | 2483 | /* Set each timer value. */ |
2484 | ripng->update_time = update; | |
2485 | ripng->timeout_time = timeout; | |
2486 | ripng->garbage_time = garbage; | |
718e3744 | 2487 | |
d62a17ae | 2488 | /* Reset update timer thread. */ |
2489 | ripng_event(RIPNG_UPDATE_EVENT, 0); | |
718e3744 | 2490 | |
d62a17ae | 2491 | return CMD_SUCCESS; |
718e3744 | 2492 | } |
2493 | ||
2494 | DEFUN (no_ripng_timers, | |
2495 | no_ripng_timers_cmd, | |
d04c479d | 2496 | "no timers basic [(0-65535) (0-65535) (0-65535)]", |
718e3744 | 2497 | NO_STR |
2498 | "RIPng timers setup\n" | |
c8952fc1 QY |
2499 | "Basic timer\n" |
2500 | "Routing table update timer value in second. Default is 30.\n" | |
2501 | "Routing information timeout timer. Default is 180.\n" | |
2502 | "Garbage collection timer. Default is 120.\n") | |
718e3744 | 2503 | { |
d62a17ae | 2504 | /* Set each timer value to the default. */ |
2505 | ripng->update_time = RIPNG_UPDATE_TIMER_DEFAULT; | |
2506 | ripng->timeout_time = RIPNG_TIMEOUT_TIMER_DEFAULT; | |
2507 | ripng->garbage_time = RIPNG_GARBAGE_TIMER_DEFAULT; | |
718e3744 | 2508 | |
d62a17ae | 2509 | /* Reset update timer thread. */ |
2510 | ripng_event(RIPNG_UPDATE_EVENT, 0); | |
718e3744 | 2511 | |
d62a17ae | 2512 | return CMD_SUCCESS; |
718e3744 | 2513 | } |
2514 | ||
d7d73ffc | 2515 | #if 0 |
dd4f9f99 DW |
2516 | DEFUN (show_ipv6_protocols, |
2517 | show_ipv6_protocols_cmd, | |
718e3744 | 2518 | "show ipv6 protocols", |
2519 | SHOW_STR | |
8d0f15fd | 2520 | IPV6_STR |
d911a12a | 2521 | "Routing protocol information\n") |
718e3744 | 2522 | { |
2523 | if (! ripng) | |
2524 | return CMD_SUCCESS; | |
2525 | ||
26a429fe | 2526 | vty_out (vty, "Routing Protocol is \"ripng\"\n"); |
718e3744 | 2527 | |
55f70b67 DL |
2528 | vty_out (vty, "Sending updates every %ld seconds, next due in %d seconds\n", |
2529 | ripng->update_time, 0); | |
718e3744 | 2530 | |
55f70b67 | 2531 | vty_out (vty, "Timerout after %ld seconds, garbage correct %ld\n", |
718e3744 | 2532 | ripng->timeout_time, |
55f70b67 | 2533 | ripng->garbage_time); |
718e3744 | 2534 | |
2535 | vty_out (vty, "Outgoing update filter list for all interfaces is not set"); | |
2536 | vty_out (vty, "Incoming update filter list for all interfaces is not set"); | |
2537 | ||
2538 | return CMD_SUCCESS; | |
2539 | } | |
d7d73ffc | 2540 | #endif |
718e3744 | 2541 | |
2542 | /* Please be carefull to use this command. */ | |
a2c62831 | 2543 | DEFUN (ripng_default_information_originate, |
2544 | ripng_default_information_originate_cmd, | |
718e3744 | 2545 | "default-information originate", |
2546 | "Default route information\n" | |
2547 | "Distribute default route\n") | |
2548 | { | |
d62a17ae | 2549 | struct prefix_ipv6 p; |
718e3744 | 2550 | |
d62a17ae | 2551 | if (!ripng->default_information) { |
2552 | ripng->default_information = 1; | |
718e3744 | 2553 | |
d62a17ae | 2554 | str2prefix_ipv6("::/0", &p); |
2555 | ripng_redistribute_add(ZEBRA_ROUTE_RIPNG, RIPNG_ROUTE_DEFAULT, | |
2556 | &p, 0, NULL, 0); | |
2557 | } | |
718e3744 | 2558 | |
d62a17ae | 2559 | return CMD_SUCCESS; |
718e3744 | 2560 | } |
2561 | ||
a2c62831 | 2562 | DEFUN (no_ripng_default_information_originate, |
2563 | no_ripng_default_information_originate_cmd, | |
718e3744 | 2564 | "no default-information originate", |
2565 | NO_STR | |
2566 | "Default route information\n" | |
2567 | "Distribute default route\n") | |
2568 | { | |
d62a17ae | 2569 | struct prefix_ipv6 p; |
718e3744 | 2570 | |
d62a17ae | 2571 | if (ripng->default_information) { |
2572 | ripng->default_information = 0; | |
718e3744 | 2573 | |
d62a17ae | 2574 | str2prefix_ipv6("::/0", &p); |
2575 | ripng_redistribute_delete(ZEBRA_ROUTE_RIPNG, | |
2576 | RIPNG_ROUTE_DEFAULT, &p, 0); | |
2577 | } | |
718e3744 | 2578 | |
d62a17ae | 2579 | return CMD_SUCCESS; |
718e3744 | 2580 | } |
2581 | ||
fac76f9c | 2582 | /* Update ECMP routes to zebra when ECMP is disabled. */ |
d62a17ae | 2583 | static void ripng_ecmp_disable(void) |
2584 | { | |
2585 | struct route_node *rp; | |
2586 | struct ripng_info *rinfo, *tmp_rinfo; | |
2587 | struct list *list; | |
2588 | struct listnode *node, *nextnode; | |
2589 | ||
2590 | if (!ripng) | |
2591 | return; | |
2592 | ||
2593 | for (rp = route_top(ripng->table); rp; rp = route_next(rp)) | |
2594 | if ((list = rp->info) != NULL && listcount(list) > 1) { | |
2595 | rinfo = listgetdata(listhead(list)); | |
2596 | if (!ripng_route_rte(rinfo)) | |
2597 | continue; | |
2598 | ||
2599 | /* Drop all other entries, except the first one. */ | |
2600 | for (ALL_LIST_ELEMENTS(list, node, nextnode, tmp_rinfo)) | |
2601 | if (tmp_rinfo != rinfo) { | |
2602 | RIPNG_TIMER_OFF(tmp_rinfo->t_timeout); | |
2603 | RIPNG_TIMER_OFF( | |
2604 | tmp_rinfo->t_garbage_collect); | |
2605 | list_delete_node(list, node); | |
2606 | ripng_info_free(tmp_rinfo); | |
2607 | } | |
2608 | ||
2609 | /* Update zebra. */ | |
2610 | ripng_zebra_ipv6_add(rp); | |
2611 | ||
2612 | /* Set the route change flag. */ | |
2613 | SET_FLAG(rinfo->flags, RIPNG_RTF_CHANGED); | |
2614 | ||
2615 | /* Signal the output process to trigger an update. */ | |
2616 | ripng_event(RIPNG_TRIGGERED_UPDATE, 0); | |
2617 | } | |
fac76f9c FL |
2618 | } |
2619 | ||
2620 | DEFUN (ripng_allow_ecmp, | |
2621 | ripng_allow_ecmp_cmd, | |
2622 | "allow-ecmp", | |
2623 | "Allow Equal Cost MultiPath\n") | |
2624 | { | |
d62a17ae | 2625 | if (ripng->ecmp) { |
2626 | vty_out(vty, "ECMP is already enabled.\n"); | |
851fcbae | 2627 | return CMD_WARNING; |
d62a17ae | 2628 | } |
fac76f9c | 2629 | |
d62a17ae | 2630 | ripng->ecmp = 1; |
2631 | zlog_info("ECMP is enabled."); | |
2632 | return CMD_SUCCESS; | |
fac76f9c FL |
2633 | } |
2634 | ||
2635 | DEFUN (no_ripng_allow_ecmp, | |
2636 | no_ripng_allow_ecmp_cmd, | |
2637 | "no allow-ecmp", | |
2638 | NO_STR | |
2639 | "Allow Equal Cost MultiPath\n") | |
2640 | { | |
d62a17ae | 2641 | if (!ripng->ecmp) { |
2642 | vty_out(vty, "ECMP is already disabled.\n"); | |
851fcbae | 2643 | return CMD_WARNING; |
d62a17ae | 2644 | } |
fac76f9c | 2645 | |
d62a17ae | 2646 | ripng->ecmp = 0; |
2647 | zlog_info("ECMP is disabled."); | |
2648 | ripng_ecmp_disable(); | |
2649 | return CMD_SUCCESS; | |
fac76f9c FL |
2650 | } |
2651 | ||
718e3744 | 2652 | /* RIPng configuration write function. */ |
d62a17ae | 2653 | static int ripng_config_write(struct vty *vty) |
2654 | { | |
2655 | int ripng_network_write(struct vty *, int); | |
2656 | void ripng_redistribute_write(struct vty *, int); | |
2657 | int write = 0; | |
2658 | struct route_node *rp; | |
2659 | ||
2660 | if (ripng) { | |
2661 | ||
2662 | /* RIPng router. */ | |
2663 | vty_out(vty, "router ripng\n"); | |
2664 | ||
2665 | if (ripng->default_information) | |
2666 | vty_out(vty, " default-information originate\n"); | |
2667 | ||
2668 | ripng_network_write(vty, 1); | |
2669 | ||
2670 | /* RIPng default metric configuration */ | |
2671 | if (ripng->default_metric != RIPNG_DEFAULT_METRIC_DEFAULT) | |
2672 | vty_out(vty, " default-metric %d\n", | |
2673 | ripng->default_metric); | |
2674 | ||
2675 | ripng_redistribute_write(vty, 1); | |
2676 | ||
2677 | /* RIP offset-list configuration. */ | |
2678 | config_write_ripng_offset_list(vty); | |
2679 | ||
2680 | /* RIPng aggregate routes. */ | |
2681 | for (rp = route_top(ripng->aggregate); rp; rp = route_next(rp)) | |
2682 | if (rp->info != NULL) | |
2683 | vty_out(vty, " aggregate-address %s/%d\n", | |
2684 | inet6_ntoa(rp->p.u.prefix6), | |
2685 | rp->p.prefixlen); | |
2686 | ||
2687 | /* ECMP configuration. */ | |
2688 | if (ripng->ecmp) | |
2689 | vty_out(vty, " allow-ecmp\n"); | |
2690 | ||
2691 | /* RIPng static routes. */ | |
2692 | for (rp = route_top(ripng->route); rp; rp = route_next(rp)) | |
2693 | if (rp->info != NULL) | |
2694 | vty_out(vty, " route %s/%d\n", | |
2695 | inet6_ntoa(rp->p.u.prefix6), | |
2696 | rp->p.prefixlen); | |
2697 | ||
2698 | /* RIPng timers configuration. */ | |
2699 | if (ripng->update_time != RIPNG_UPDATE_TIMER_DEFAULT | |
2700 | || ripng->timeout_time != RIPNG_TIMEOUT_TIMER_DEFAULT | |
2701 | || ripng->garbage_time != RIPNG_GARBAGE_TIMER_DEFAULT) { | |
2702 | vty_out(vty, " timers basic %ld %ld %ld\n", | |
2703 | ripng->update_time, ripng->timeout_time, | |
2704 | ripng->garbage_time); | |
2705 | } | |
718e3744 | 2706 | #if 0 |
2707 | if (ripng->update_time != RIPNG_UPDATE_TIMER_DEFAULT) | |
55f70b67 | 2708 | vty_out (vty, " update-timer %d\n", ripng->update_time); |
718e3744 | 2709 | if (ripng->timeout_time != RIPNG_TIMEOUT_TIMER_DEFAULT) |
55f70b67 | 2710 | vty_out (vty, " timeout-timer %d\n", ripng->timeout_time); |
718e3744 | 2711 | if (ripng->garbage_time != RIPNG_GARBAGE_TIMER_DEFAULT) |
55f70b67 | 2712 | vty_out (vty, " garbage-timer %d\n", ripng->garbage_time); |
718e3744 | 2713 | #endif /* 0 */ |
2714 | ||
d62a17ae | 2715 | write += config_write_distribute(vty); |
718e3744 | 2716 | |
d62a17ae | 2717 | write += config_write_if_rmap(vty); |
718e3744 | 2718 | |
d62a17ae | 2719 | write++; |
2720 | } | |
2721 | return write; | |
718e3744 | 2722 | } |
2723 | ||
2724 | /* RIPng node structure. */ | |
d62a17ae | 2725 | static struct cmd_node cmd_ripng_node = { |
9d303b37 | 2726 | RIPNG_NODE, "%s(config-router)# ", 1, |
718e3744 | 2727 | }; |
2728 | ||
d62a17ae | 2729 | static void ripng_distribute_update(struct distribute *dist) |
2730 | { | |
2731 | struct interface *ifp; | |
2732 | struct ripng_interface *ri; | |
2733 | struct access_list *alist; | |
2734 | struct prefix_list *plist; | |
2735 | ||
2736 | if (!dist->ifname) | |
2737 | return; | |
2738 | ||
2739 | ifp = if_lookup_by_name(dist->ifname, VRF_DEFAULT); | |
2740 | if (ifp == NULL) | |
2741 | return; | |
2742 | ||
2743 | ri = ifp->info; | |
2744 | ||
2745 | if (dist->list[DISTRIBUTE_V6_IN]) { | |
2746 | alist = access_list_lookup(AFI_IP6, | |
2747 | dist->list[DISTRIBUTE_V6_IN]); | |
2748 | if (alist) | |
2749 | ri->list[RIPNG_FILTER_IN] = alist; | |
2750 | else | |
2751 | ri->list[RIPNG_FILTER_IN] = NULL; | |
2752 | } else | |
2753 | ri->list[RIPNG_FILTER_IN] = NULL; | |
2754 | ||
2755 | if (dist->list[DISTRIBUTE_V6_OUT]) { | |
2756 | alist = access_list_lookup(AFI_IP6, | |
2757 | dist->list[DISTRIBUTE_V6_OUT]); | |
2758 | if (alist) | |
2759 | ri->list[RIPNG_FILTER_OUT] = alist; | |
2760 | else | |
2761 | ri->list[RIPNG_FILTER_OUT] = NULL; | |
2762 | } else | |
2763 | ri->list[RIPNG_FILTER_OUT] = NULL; | |
2764 | ||
2765 | if (dist->prefix[DISTRIBUTE_V6_IN]) { | |
2766 | plist = prefix_list_lookup(AFI_IP6, | |
2767 | dist->prefix[DISTRIBUTE_V6_IN]); | |
2768 | if (plist) | |
2769 | ri->prefix[RIPNG_FILTER_IN] = plist; | |
2770 | else | |
2771 | ri->prefix[RIPNG_FILTER_IN] = NULL; | |
2772 | } else | |
2773 | ri->prefix[RIPNG_FILTER_IN] = NULL; | |
2774 | ||
2775 | if (dist->prefix[DISTRIBUTE_V6_OUT]) { | |
2776 | plist = prefix_list_lookup(AFI_IP6, | |
2777 | dist->prefix[DISTRIBUTE_V6_OUT]); | |
2778 | if (plist) | |
2779 | ri->prefix[RIPNG_FILTER_OUT] = plist; | |
2780 | else | |
2781 | ri->prefix[RIPNG_FILTER_OUT] = NULL; | |
2782 | } else | |
2783 | ri->prefix[RIPNG_FILTER_OUT] = NULL; | |
2784 | } | |
2785 | ||
2786 | void ripng_distribute_update_interface(struct interface *ifp) | |
2787 | { | |
2788 | struct distribute *dist; | |
2789 | ||
2790 | dist = distribute_lookup(ifp->name); | |
2791 | if (dist) | |
2792 | ripng_distribute_update(dist); | |
718e3744 | 2793 | } |
2794 | ||
2795 | /* Update all interface's distribute list. */ | |
d62a17ae | 2796 | static void ripng_distribute_update_all(struct prefix_list *notused) |
718e3744 | 2797 | { |
f4e14fdb | 2798 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 2799 | struct interface *ifp; |
718e3744 | 2800 | |
451fda4f | 2801 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 2802 | ripng_distribute_update_interface(ifp); |
718e3744 | 2803 | } |
c9e52be3 | 2804 | |
d62a17ae | 2805 | static void ripng_distribute_update_all_wrapper(struct access_list *notused) |
c9e52be3 | 2806 | { |
d62a17ae | 2807 | ripng_distribute_update_all(NULL); |
c9e52be3 | 2808 | } |
6b0655a2 | 2809 | |
a94434b6 | 2810 | /* delete all the added ripng routes. */ |
d62a17ae | 2811 | void ripng_clean() |
2812 | { | |
2813 | int i; | |
2814 | struct route_node *rp; | |
2815 | struct ripng_info *rinfo; | |
2816 | struct ripng_aggregate *aggregate; | |
2817 | struct list *list = NULL; | |
2818 | struct listnode *listnode = NULL; | |
2819 | ||
2820 | if (ripng) { | |
2821 | /* Clear RIPng routes */ | |
2822 | for (rp = route_top(ripng->table); rp; rp = route_next(rp)) { | |
2823 | if ((list = rp->info) != NULL) { | |
2824 | rinfo = listgetdata(listhead(list)); | |
2825 | if (ripng_route_rte(rinfo)) | |
2826 | ripng_zebra_ipv6_delete(rp); | |
2827 | ||
2828 | for (ALL_LIST_ELEMENTS_RO(list, listnode, | |
2829 | rinfo)) { | |
2830 | RIPNG_TIMER_OFF(rinfo->t_timeout); | |
2831 | RIPNG_TIMER_OFF( | |
2832 | rinfo->t_garbage_collect); | |
2833 | ripng_info_free(rinfo); | |
2834 | } | |
affe9e99 | 2835 | list_delete_and_null(&list); |
d62a17ae | 2836 | rp->info = NULL; |
2837 | route_unlock_node(rp); | |
2838 | } | |
2839 | ||
2840 | if ((aggregate = rp->aggregate) != NULL) { | |
2841 | ripng_aggregate_free(aggregate); | |
2842 | rp->aggregate = NULL; | |
2843 | route_unlock_node(rp); | |
2844 | } | |
2845 | } | |
a94434b6 | 2846 | |
d62a17ae | 2847 | /* Cancel the RIPng timers */ |
2848 | RIPNG_TIMER_OFF(ripng->t_update); | |
2849 | RIPNG_TIMER_OFF(ripng->t_triggered_update); | |
2850 | RIPNG_TIMER_OFF(ripng->t_triggered_interval); | |
a94434b6 | 2851 | |
d62a17ae | 2852 | /* Cancel the read thread */ |
2853 | if (ripng->t_read) { | |
2854 | thread_cancel(ripng->t_read); | |
2855 | ripng->t_read = NULL; | |
2856 | } | |
a94434b6 | 2857 | |
d62a17ae | 2858 | /* Close the RIPng socket */ |
2859 | if (ripng->sock >= 0) { | |
2860 | close(ripng->sock); | |
2861 | ripng->sock = -1; | |
2862 | } | |
a94434b6 | 2863 | |
d62a17ae | 2864 | /* Static RIPng route configuration. */ |
2865 | for (rp = route_top(ripng->route); rp; rp = route_next(rp)) | |
2866 | if (rp->info) { | |
2867 | rp->info = NULL; | |
2868 | route_unlock_node(rp); | |
2869 | } | |
a94434b6 | 2870 | |
d62a17ae | 2871 | /* RIPng aggregated prefixes */ |
2872 | for (rp = route_top(ripng->aggregate); rp; rp = route_next(rp)) | |
2873 | if (rp->info) { | |
2874 | rp->info = NULL; | |
2875 | route_unlock_node(rp); | |
2876 | } | |
a94434b6 | 2877 | |
d62a17ae | 2878 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) |
2879 | if (ripng->route_map[i].name) | |
2880 | free(ripng->route_map[i].name); | |
a94434b6 | 2881 | |
d62a17ae | 2882 | XFREE(MTYPE_ROUTE_TABLE, ripng->table); |
2883 | XFREE(MTYPE_ROUTE_TABLE, ripng->route); | |
2884 | XFREE(MTYPE_ROUTE_TABLE, ripng->aggregate); | |
a94434b6 | 2885 | |
d62a17ae | 2886 | stream_free(ripng->ibuf); |
2887 | stream_free(ripng->obuf); | |
0581e54d | 2888 | |
d62a17ae | 2889 | XFREE(MTYPE_RIPNG, ripng); |
2890 | ripng = NULL; | |
2891 | } /* if (ripng) */ | |
a94434b6 | 2892 | |
d62a17ae | 2893 | ripng_clean_network(); |
2894 | ripng_passive_interface_clean(); | |
2895 | ripng_offset_clean(); | |
2896 | ripng_interface_clean(); | |
2897 | ripng_redistribute_clean(); | |
a94434b6 | 2898 | } |
2899 | ||
2900 | /* Reset all values to the default settings. */ | |
d62a17ae | 2901 | void ripng_reset() |
a94434b6 | 2902 | { |
d62a17ae | 2903 | /* Call ripd related reset functions. */ |
2904 | ripng_debug_reset(); | |
2905 | ripng_route_map_reset(); | |
a94434b6 | 2906 | |
d62a17ae | 2907 | /* Call library reset functions. */ |
2908 | vty_reset(); | |
2909 | access_list_reset(); | |
2910 | prefix_list_reset(); | |
a94434b6 | 2911 | |
d62a17ae | 2912 | distribute_list_reset(); |
a94434b6 | 2913 | |
d62a17ae | 2914 | ripng_interface_reset(); |
a94434b6 | 2915 | |
d62a17ae | 2916 | ripng_zclient_reset(); |
a94434b6 | 2917 | } |
718e3744 | 2918 | |
d62a17ae | 2919 | static void ripng_if_rmap_update(struct if_rmap *if_rmap) |
718e3744 | 2920 | { |
d62a17ae | 2921 | struct interface *ifp; |
2922 | struct ripng_interface *ri; | |
2923 | struct route_map *rmap; | |
718e3744 | 2924 | |
d62a17ae | 2925 | ifp = if_lookup_by_name(if_rmap->ifname, VRF_DEFAULT); |
2926 | if (ifp == NULL) | |
2927 | return; | |
718e3744 | 2928 | |
d62a17ae | 2929 | ri = ifp->info; |
718e3744 | 2930 | |
d62a17ae | 2931 | if (if_rmap->routemap[IF_RMAP_IN]) { |
2932 | rmap = route_map_lookup_by_name(if_rmap->routemap[IF_RMAP_IN]); | |
2933 | if (rmap) | |
2934 | ri->routemap[IF_RMAP_IN] = rmap; | |
2935 | else | |
2936 | ri->routemap[IF_RMAP_IN] = NULL; | |
2937 | } else | |
2938 | ri->routemap[RIPNG_FILTER_IN] = NULL; | |
718e3744 | 2939 | |
d62a17ae | 2940 | if (if_rmap->routemap[IF_RMAP_OUT]) { |
2941 | rmap = route_map_lookup_by_name(if_rmap->routemap[IF_RMAP_OUT]); | |
2942 | if (rmap) | |
2943 | ri->routemap[IF_RMAP_OUT] = rmap; | |
2944 | else | |
2945 | ri->routemap[IF_RMAP_OUT] = NULL; | |
2946 | } else | |
2947 | ri->routemap[RIPNG_FILTER_OUT] = NULL; | |
718e3744 | 2948 | } |
2949 | ||
d62a17ae | 2950 | void ripng_if_rmap_update_interface(struct interface *ifp) |
718e3744 | 2951 | { |
d62a17ae | 2952 | struct if_rmap *if_rmap; |
718e3744 | 2953 | |
d62a17ae | 2954 | if_rmap = if_rmap_lookup(ifp->name); |
2955 | if (if_rmap) | |
2956 | ripng_if_rmap_update(if_rmap); | |
718e3744 | 2957 | } |
2958 | ||
d62a17ae | 2959 | static void ripng_routemap_update_redistribute(void) |
718e3744 | 2960 | { |
d62a17ae | 2961 | int i; |
718e3744 | 2962 | |
d62a17ae | 2963 | if (ripng) { |
2964 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
2965 | if (ripng->route_map[i].name) | |
2966 | ripng->route_map[i].map = | |
2967 | route_map_lookup_by_name( | |
2968 | ripng->route_map[i].name); | |
2969 | } | |
718e3744 | 2970 | } |
718e3744 | 2971 | } |
2972 | ||
d62a17ae | 2973 | static void ripng_routemap_update(const char *unused) |
718e3744 | 2974 | { |
f4e14fdb | 2975 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 2976 | struct interface *ifp; |
718e3744 | 2977 | |
451fda4f | 2978 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 2979 | ripng_if_rmap_update_interface(ifp); |
718e3744 | 2980 | |
d62a17ae | 2981 | ripng_routemap_update_redistribute(); |
718e3744 | 2982 | } |
2983 | ||
2984 | /* Initialize ripng structure and set commands. */ | |
d62a17ae | 2985 | void ripng_init() |
718e3744 | 2986 | { |
d62a17ae | 2987 | /* Install RIPNG_NODE. */ |
2988 | install_node(&cmd_ripng_node, ripng_config_write); | |
718e3744 | 2989 | |
d62a17ae | 2990 | /* Install ripng commands. */ |
2991 | install_element(VIEW_NODE, &show_ipv6_ripng_cmd); | |
2992 | install_element(VIEW_NODE, &show_ipv6_ripng_status_cmd); | |
718e3744 | 2993 | |
d62a17ae | 2994 | install_element(ENABLE_NODE, &clear_ipv6_rip_cmd); |
d7f966ab | 2995 | |
d62a17ae | 2996 | install_element(CONFIG_NODE, &router_ripng_cmd); |
2997 | install_element(CONFIG_NODE, &no_router_ripng_cmd); | |
718e3744 | 2998 | |
d62a17ae | 2999 | install_default(RIPNG_NODE); |
3000 | install_element(RIPNG_NODE, &ripng_route_cmd); | |
3001 | install_element(RIPNG_NODE, &no_ripng_route_cmd); | |
3002 | install_element(RIPNG_NODE, &ripng_aggregate_address_cmd); | |
3003 | install_element(RIPNG_NODE, &no_ripng_aggregate_address_cmd); | |
718e3744 | 3004 | |
d62a17ae | 3005 | install_element(RIPNG_NODE, &ripng_default_metric_cmd); |
3006 | install_element(RIPNG_NODE, &no_ripng_default_metric_cmd); | |
718e3744 | 3007 | |
d62a17ae | 3008 | install_element(RIPNG_NODE, &ripng_timers_cmd); |
3009 | install_element(RIPNG_NODE, &no_ripng_timers_cmd); | |
718e3744 | 3010 | #if 0 |
ee9216cf | 3011 | install_element (VIEW_NODE, &show_ipv6_protocols_cmd); |
718e3744 | 3012 | install_element (RIPNG_NODE, &ripng_update_timer_cmd); |
3013 | install_element (RIPNG_NODE, &no_ripng_update_timer_cmd); | |
3014 | install_element (RIPNG_NODE, &ripng_timeout_timer_cmd); | |
3015 | install_element (RIPNG_NODE, &no_ripng_timeout_timer_cmd); | |
3016 | install_element (RIPNG_NODE, &ripng_garbage_timer_cmd); | |
3017 | install_element (RIPNG_NODE, &no_ripng_garbage_timer_cmd); | |
3018 | #endif /* 0 */ | |
3019 | ||
d62a17ae | 3020 | install_element(RIPNG_NODE, &ripng_default_information_originate_cmd); |
3021 | install_element(RIPNG_NODE, | |
3022 | &no_ripng_default_information_originate_cmd); | |
718e3744 | 3023 | |
d62a17ae | 3024 | install_element(RIPNG_NODE, &ripng_allow_ecmp_cmd); |
3025 | install_element(RIPNG_NODE, &no_ripng_allow_ecmp_cmd); | |
fac76f9c | 3026 | |
d62a17ae | 3027 | ripng_if_init(); |
3028 | ripng_debug_init(); | |
718e3744 | 3029 | |
d62a17ae | 3030 | /* Access list install. */ |
3031 | access_list_init(); | |
3032 | access_list_add_hook(ripng_distribute_update_all_wrapper); | |
3033 | access_list_delete_hook(ripng_distribute_update_all_wrapper); | |
718e3744 | 3034 | |
d62a17ae | 3035 | /* Prefix list initialize.*/ |
3036 | prefix_list_init(); | |
3037 | prefix_list_add_hook(ripng_distribute_update_all); | |
3038 | prefix_list_delete_hook(ripng_distribute_update_all); | |
718e3744 | 3039 | |
d62a17ae | 3040 | /* Distribute list install. */ |
3041 | distribute_list_init(RIPNG_NODE); | |
3042 | distribute_list_add_hook(ripng_distribute_update); | |
3043 | distribute_list_delete_hook(ripng_distribute_update); | |
718e3744 | 3044 | |
d62a17ae | 3045 | /* Route-map for interface. */ |
3046 | ripng_route_map_init(); | |
3047 | ripng_offset_init(); | |
a94434b6 | 3048 | |
d62a17ae | 3049 | route_map_add_hook(ripng_routemap_update); |
3050 | route_map_delete_hook(ripng_routemap_update); | |
718e3744 | 3051 | |
d62a17ae | 3052 | if_rmap_init(RIPNG_NODE); |
3053 | if_rmap_hook_add(ripng_if_rmap_update); | |
3054 | if_rmap_hook_delete(ripng_if_rmap_update); | |
718e3744 | 3055 | } |