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718e3744 | 1 | /* Router advertisement |
34ccea1e | 2 | * Copyright (C) 2016 Cumulus Networks |
7cee1bb1 | 3 | * Copyright (C) 2005 6WIND <jean-mickael.guerin@6wind.com> |
718e3744 | 4 | * Copyright (C) 1999 Kunihiro Ishiguro |
5 | * | |
6 | * This file is part of GNU Zebra. | |
7 | * | |
8 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License as published by the | |
10 | * Free Software Foundation; either version 2, or (at your option) any | |
11 | * later version. | |
12 | * | |
13 | * GNU Zebra is distributed in the hope that it will be useful, but | |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * General Public License for more details. | |
17 | * | |
896014f4 DL |
18 | * You should have received a copy of the GNU General Public License along |
19 | * with this program; see the file COPYING; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
718e3744 | 21 | */ |
22 | ||
23 | #include <zebra.h> | |
24 | ||
25 | #include "memory.h" | |
4a1ab8e4 | 26 | #include "zebra_memory.h" |
718e3744 | 27 | #include "sockopt.h" |
28 | #include "thread.h" | |
29 | #include "if.h" | |
4a04e5f7 | 30 | #include "stream.h" |
718e3744 | 31 | #include "log.h" |
32 | #include "prefix.h" | |
33 | #include "linklist.h" | |
34 | #include "command.h" | |
edd7c245 | 35 | #include "privs.h" |
cd80d74f | 36 | #include "vrf.h" |
fe533c56 | 37 | #include "ns.h" |
43e52561 | 38 | #include "lib_errors.h" |
718e3744 | 39 | |
40 | #include "zebra/interface.h" | |
41 | #include "zebra/rtadv.h" | |
42 | #include "zebra/debug.h" | |
537d8ea9 | 43 | #include "zebra/rib.h" |
bf094f69 | 44 | #include "zebra/zapi_msg.h" |
7c551956 | 45 | #include "zebra/zebra_vrf.h" |
364fed6b | 46 | #include "zebra/zebra_errors.h" |
a3be9fa1 | 47 | #include "zebra/zebra_router.h" |
718e3744 | 48 | |
edd7c245 | 49 | extern struct zebra_privs_t zserv_privs; |
50 | ||
d62a17ae | 51 | #if defined(HAVE_RTADV) |
718e3744 | 52 | |
c1344b54 DL |
53 | DEFINE_MTYPE_STATIC(ZEBRA, RTADV_PREFIX, "Router Advertisement Prefix") |
54 | ||
fa2b17e3 | 55 | #ifdef OPEN_BSD |
56 | #include <netinet/icmp6.h> | |
57 | #endif | |
58 | ||
718e3744 | 59 | /* If RFC2133 definition is used. */ |
60 | #ifndef IPV6_JOIN_GROUP | |
c258527b | 61 | #define IPV6_JOIN_GROUP IPV6_ADD_MEMBERSHIP |
718e3744 | 62 | #endif |
63 | #ifndef IPV6_LEAVE_GROUP | |
c258527b | 64 | #define IPV6_LEAVE_GROUP IPV6_DROP_MEMBERSHIP |
718e3744 | 65 | #endif |
66 | ||
67 | #define ALLNODE "ff02::1" | |
68 | #define ALLROUTER "ff02::2" | |
69 | ||
110765e3 LS |
70 | DEFINE_MTYPE_STATIC(ZEBRA, RTADV_RDNSS, "Router Advertisement RDNSS") |
71 | DEFINE_MTYPE_STATIC(ZEBRA, RTADV_DNSSL, "Router Advertisement DNSSL") | |
72 | ||
2eb27eec DL |
73 | /* Order is intentional. Matches RFC4191. This array is also used for |
74 | command matching, so only modify with care. */ | |
2b64873d DL |
75 | static const char *const rtadv_pref_strs[] = { |
76 | "medium", "high", "INVALID", "low", 0 | |
77 | }; | |
2eb27eec | 78 | |
d62a17ae | 79 | enum rtadv_event { |
80 | RTADV_START, | |
81 | RTADV_STOP, | |
82 | RTADV_TIMER, | |
83 | RTADV_TIMER_MSEC, | |
84 | RTADV_READ | |
85 | }; | |
718e3744 | 86 | |
df9c8c57 | 87 | static void rtadv_event(struct zebra_vrf *, enum rtadv_event, int); |
718e3744 | 88 | |
d62a17ae | 89 | static int if_join_all_router(int, struct interface *); |
90 | static int if_leave_all_router(int, struct interface *); | |
6b0655a2 | 91 | |
9245fe61 PG |
92 | static int rtadv_get_socket(struct zebra_vrf *zvrf) |
93 | { | |
94 | if (zvrf->rtadv.sock > 0) | |
95 | return zvrf->rtadv.sock; | |
96 | return zrouter.rtadv_sock; | |
97 | } | |
98 | ||
df9c8c57 | 99 | static int rtadv_increment_received(struct zebra_vrf *zvrf, ifindex_t *ifindex) |
911ad1e2 | 100 | { |
d62a17ae | 101 | int ret = -1; |
102 | struct interface *iface; | |
103 | struct zebra_if *zif; | |
104 | ||
df9c8c57 | 105 | iface = if_lookup_by_index(*ifindex, zvrf->vrf->vrf_id); |
d62a17ae | 106 | if (iface && iface->info) { |
107 | zif = iface->info; | |
108 | zif->ra_rcvd++; | |
109 | ret = 0; | |
110 | } | |
111 | return ret; | |
795b5abf QY |
112 | } |
113 | ||
df9c8c57 | 114 | static int rtadv_recv_packet(struct zebra_vrf *zvrf, int sock, uint8_t *buf, |
d62a17ae | 115 | int buflen, struct sockaddr_in6 *from, |
116 | ifindex_t *ifindex, int *hoplimit) | |
718e3744 | 117 | { |
d62a17ae | 118 | int ret; |
119 | struct msghdr msg; | |
120 | struct iovec iov; | |
121 | struct cmsghdr *cmsgptr; | |
122 | struct in6_addr dst; | |
123 | ||
124 | char adata[1024]; | |
125 | ||
126 | /* Fill in message and iovec. */ | |
0af35d90 | 127 | memset(&msg, 0, sizeof(msg)); |
d62a17ae | 128 | msg.msg_name = (void *)from; |
129 | msg.msg_namelen = sizeof(struct sockaddr_in6); | |
130 | msg.msg_iov = &iov; | |
131 | msg.msg_iovlen = 1; | |
132 | msg.msg_control = (void *)adata; | |
133 | msg.msg_controllen = sizeof adata; | |
134 | iov.iov_base = buf; | |
135 | iov.iov_len = buflen; | |
136 | ||
137 | /* If recvmsg fail return minus value. */ | |
138 | ret = recvmsg(sock, &msg, 0); | |
139 | if (ret < 0) | |
140 | return ret; | |
141 | ||
adf0e7c6 | 142 | for (cmsgptr = CMSG_FIRSTHDR(&msg); cmsgptr != NULL; |
d62a17ae | 143 | cmsgptr = CMSG_NXTHDR(&msg, cmsgptr)) { |
144 | /* I want interface index which this packet comes from. */ | |
145 | if (cmsgptr->cmsg_level == IPPROTO_IPV6 | |
146 | && cmsgptr->cmsg_type == IPV6_PKTINFO) { | |
147 | struct in6_pktinfo *ptr; | |
148 | ||
149 | ptr = (struct in6_pktinfo *)CMSG_DATA(cmsgptr); | |
150 | *ifindex = ptr->ipi6_ifindex; | |
151 | memcpy(&dst, &ptr->ipi6_addr, sizeof(ptr->ipi6_addr)); | |
152 | } | |
153 | ||
154 | /* Incoming packet's hop limit. */ | |
155 | if (cmsgptr->cmsg_level == IPPROTO_IPV6 | |
156 | && cmsgptr->cmsg_type == IPV6_HOPLIMIT) { | |
157 | int *hoptr = (int *)CMSG_DATA(cmsgptr); | |
158 | *hoplimit = *hoptr; | |
159 | } | |
b0b709ab | 160 | } |
795b5abf | 161 | |
df9c8c57 | 162 | rtadv_increment_received(zvrf, ifindex); |
d62a17ae | 163 | return ret; |
718e3744 | 164 | } |
165 | ||
166 | #define RTADV_MSG_SIZE 4096 | |
167 | ||
168 | /* Send router advertisement packet. */ | |
d62a17ae | 169 | static void rtadv_send_packet(int sock, struct interface *ifp) |
718e3744 | 170 | { |
d62a17ae | 171 | struct msghdr msg; |
172 | struct iovec iov; | |
173 | struct cmsghdr *cmsgptr; | |
174 | struct in6_pktinfo *pkt; | |
175 | struct sockaddr_in6 addr; | |
176 | static void *adata = NULL; | |
177 | unsigned char buf[RTADV_MSG_SIZE]; | |
178 | struct nd_router_advert *rtadv; | |
179 | int ret; | |
180 | int len = 0; | |
181 | struct zebra_if *zif; | |
182 | struct rtadv_prefix *rprefix; | |
d7c0a89a QY |
183 | uint8_t all_nodes_addr[] = {0xff, 0x02, 0, 0, 0, 0, 0, 0, |
184 | 0, 0, 0, 0, 0, 0, 0, 1}; | |
d62a17ae | 185 | struct listnode *node; |
d7c0a89a | 186 | uint16_t pkt_RouterLifetime; |
d62a17ae | 187 | |
188 | /* | |
189 | * Allocate control message bufffer. This is dynamic because | |
190 | * CMSG_SPACE is not guaranteed not to call a function. Note that | |
191 | * the size will be different on different architectures due to | |
192 | * differing alignment rules. | |
193 | */ | |
194 | if (adata == NULL) { | |
195 | /* XXX Free on shutdown. */ | |
b8aa3767 | 196 | adata = calloc(1, CMSG_SPACE(sizeof(struct in6_pktinfo))); |
d62a17ae | 197 | |
b8aa3767 | 198 | if (adata == NULL) { |
9df414fe | 199 | zlog_debug( |
d62a17ae | 200 | "rtadv_send_packet: can't malloc control data"); |
b8aa3767 DS |
201 | exit(-1); |
202 | } | |
d62a17ae | 203 | } |
204 | ||
205 | /* Logging of packet. */ | |
206 | if (IS_ZEBRA_DEBUG_PACKET) | |
207 | zlog_debug("%s(%u): Tx RA, socket %u", ifp->name, ifp->ifindex, | |
208 | sock); | |
209 | ||
210 | /* Fill in sockaddr_in6. */ | |
211 | memset(&addr, 0, sizeof(struct sockaddr_in6)); | |
212 | addr.sin6_family = AF_INET6; | |
718e3744 | 213 | #ifdef SIN6_LEN |
d62a17ae | 214 | addr.sin6_len = sizeof(struct sockaddr_in6); |
718e3744 | 215 | #endif /* SIN6_LEN */ |
d62a17ae | 216 | addr.sin6_port = htons(IPPROTO_ICMPV6); |
217 | IPV6_ADDR_COPY(&addr.sin6_addr, all_nodes_addr); | |
218 | ||
219 | /* Fetch interface information. */ | |
220 | zif = ifp->info; | |
221 | ||
222 | /* Make router advertisement message. */ | |
223 | rtadv = (struct nd_router_advert *)buf; | |
224 | ||
225 | rtadv->nd_ra_type = ND_ROUTER_ADVERT; | |
226 | rtadv->nd_ra_code = 0; | |
227 | rtadv->nd_ra_cksum = 0; | |
228 | ||
229 | rtadv->nd_ra_curhoplimit = 64; | |
230 | ||
231 | /* RFC4191: Default Router Preference is 0 if Router Lifetime is 0. */ | |
232 | rtadv->nd_ra_flags_reserved = zif->rtadv.AdvDefaultLifetime == 0 | |
233 | ? 0 | |
234 | : zif->rtadv.DefaultPreference; | |
235 | rtadv->nd_ra_flags_reserved <<= 3; | |
236 | ||
237 | if (zif->rtadv.AdvManagedFlag) | |
238 | rtadv->nd_ra_flags_reserved |= ND_RA_FLAG_MANAGED; | |
239 | if (zif->rtadv.AdvOtherConfigFlag) | |
240 | rtadv->nd_ra_flags_reserved |= ND_RA_FLAG_OTHER; | |
241 | if (zif->rtadv.AdvHomeAgentFlag) | |
242 | rtadv->nd_ra_flags_reserved |= ND_RA_FLAG_HOME_AGENT; | |
243 | /* Note that according to Neighbor Discovery (RFC 4861 [18]), | |
244 | * AdvDefaultLifetime is by default based on the value of | |
245 | * MaxRtrAdvInterval. AdvDefaultLifetime is used in the Router Lifetime | |
246 | * field of Router Advertisements. Given that this field is expressed | |
247 | * in seconds, a small MaxRtrAdvInterval value can result in a zero | |
248 | * value for this field. To prevent this, routers SHOULD keep | |
249 | * AdvDefaultLifetime in at least one second, even if the use of | |
250 | * MaxRtrAdvInterval would result in a smaller value. -- RFC6275, 7.5 */ | |
251 | pkt_RouterLifetime = | |
252 | zif->rtadv.AdvDefaultLifetime != -1 | |
253 | ? zif->rtadv.AdvDefaultLifetime | |
254 | : MAX(1, 0.003 * zif->rtadv.MaxRtrAdvInterval); | |
255 | rtadv->nd_ra_router_lifetime = htons(pkt_RouterLifetime); | |
256 | rtadv->nd_ra_reachable = htonl(zif->rtadv.AdvReachableTime); | |
257 | rtadv->nd_ra_retransmit = htonl(0); | |
258 | ||
259 | len = sizeof(struct nd_router_advert); | |
260 | ||
261 | /* If both the Home Agent Preference and Home Agent Lifetime are set to | |
262 | * their default values specified above, this option SHOULD NOT be | |
263 | * included in the Router Advertisement messages sent by this home | |
264 | * agent. -- RFC6275, 7.4 */ | |
265 | if (zif->rtadv.AdvHomeAgentFlag | |
266 | && (zif->rtadv.HomeAgentPreference | |
267 | || zif->rtadv.HomeAgentLifetime != -1)) { | |
268 | struct nd_opt_homeagent_info *ndopt_hai = | |
269 | (struct nd_opt_homeagent_info *)(buf + len); | |
270 | ndopt_hai->nd_opt_hai_type = ND_OPT_HA_INFORMATION; | |
271 | ndopt_hai->nd_opt_hai_len = 1; | |
272 | ndopt_hai->nd_opt_hai_reserved = 0; | |
273 | ndopt_hai->nd_opt_hai_preference = | |
274 | htons(zif->rtadv.HomeAgentPreference); | |
275 | /* 16-bit unsigned integer. The lifetime associated with the | |
276 | * home | |
277 | * agent in units of seconds. The default value is the same as | |
278 | * the | |
279 | * Router Lifetime, as specified in the main body of the Router | |
280 | * Advertisement. The maximum value corresponds to 18.2 hours. | |
281 | * A | |
282 | * value of 0 MUST NOT be used. -- RFC6275, 7.5 */ | |
283 | ndopt_hai->nd_opt_hai_lifetime = | |
284 | htons(zif->rtadv.HomeAgentLifetime != -1 | |
285 | ? zif->rtadv.HomeAgentLifetime | |
286 | : MAX(1, pkt_RouterLifetime) /* 0 is OK | |
287 | for RL, | |
288 | but not | |
289 | for HAL*/ | |
9d303b37 | 290 | ); |
d62a17ae | 291 | len += sizeof(struct nd_opt_homeagent_info); |
292 | } | |
718e3744 | 293 | |
d62a17ae | 294 | if (zif->rtadv.AdvIntervalOption) { |
295 | struct nd_opt_adv_interval *ndopt_adv = | |
296 | (struct nd_opt_adv_interval *)(buf + len); | |
297 | ndopt_adv->nd_opt_ai_type = ND_OPT_ADV_INTERVAL; | |
298 | ndopt_adv->nd_opt_ai_len = 1; | |
299 | ndopt_adv->nd_opt_ai_reserved = 0; | |
300 | ndopt_adv->nd_opt_ai_interval = | |
301 | htonl(zif->rtadv.MaxRtrAdvInterval); | |
302 | len += sizeof(struct nd_opt_adv_interval); | |
303 | } | |
304 | ||
305 | /* Fill in prefix. */ | |
306 | for (ALL_LIST_ELEMENTS_RO(zif->rtadv.AdvPrefixList, node, rprefix)) { | |
307 | struct nd_opt_prefix_info *pinfo; | |
718e3744 | 308 | |
d62a17ae | 309 | pinfo = (struct nd_opt_prefix_info *)(buf + len); |
718e3744 | 310 | |
d62a17ae | 311 | pinfo->nd_opt_pi_type = ND_OPT_PREFIX_INFORMATION; |
312 | pinfo->nd_opt_pi_len = 4; | |
313 | pinfo->nd_opt_pi_prefix_len = rprefix->prefix.prefixlen; | |
314 | ||
315 | pinfo->nd_opt_pi_flags_reserved = 0; | |
316 | if (rprefix->AdvOnLinkFlag) | |
317 | pinfo->nd_opt_pi_flags_reserved |= | |
318 | ND_OPT_PI_FLAG_ONLINK; | |
319 | if (rprefix->AdvAutonomousFlag) | |
320 | pinfo->nd_opt_pi_flags_reserved |= ND_OPT_PI_FLAG_AUTO; | |
321 | if (rprefix->AdvRouterAddressFlag) | |
322 | pinfo->nd_opt_pi_flags_reserved |= ND_OPT_PI_FLAG_RADDR; | |
323 | ||
324 | pinfo->nd_opt_pi_valid_time = htonl(rprefix->AdvValidLifetime); | |
325 | pinfo->nd_opt_pi_preferred_time = | |
326 | htonl(rprefix->AdvPreferredLifetime); | |
327 | pinfo->nd_opt_pi_reserved2 = 0; | |
328 | ||
329 | IPV6_ADDR_COPY(&pinfo->nd_opt_pi_prefix, | |
330 | &rprefix->prefix.prefix); | |
331 | ||
332 | #ifdef DEBUG | |
333 | { | |
d7c0a89a | 334 | uint8_t buf[INET6_ADDRSTRLEN]; |
d62a17ae | 335 | |
336 | zlog_debug("DEBUG %s", | |
337 | inet_ntop(AF_INET6, &pinfo->nd_opt_pi_prefix, | |
338 | buf, INET6_ADDRSTRLEN)); | |
339 | } | |
718e3744 | 340 | #endif /* DEBUG */ |
341 | ||
d62a17ae | 342 | len += sizeof(struct nd_opt_prefix_info); |
343 | } | |
344 | ||
345 | /* Hardware address. */ | |
346 | if (ifp->hw_addr_len != 0) { | |
347 | buf[len++] = ND_OPT_SOURCE_LINKADDR; | |
348 | ||
349 | /* Option length should be rounded up to next octet if | |
350 | the link address does not end on an octet boundary. */ | |
351 | buf[len++] = (ifp->hw_addr_len + 9) >> 3; | |
352 | ||
353 | memcpy(buf + len, ifp->hw_addr, ifp->hw_addr_len); | |
354 | len += ifp->hw_addr_len; | |
355 | ||
356 | /* Pad option to end on an octet boundary. */ | |
357 | memset(buf + len, 0, -(ifp->hw_addr_len + 2) & 0x7); | |
358 | len += -(ifp->hw_addr_len + 2) & 0x7; | |
359 | } | |
360 | ||
361 | /* MTU */ | |
362 | if (zif->rtadv.AdvLinkMTU) { | |
363 | struct nd_opt_mtu *opt = (struct nd_opt_mtu *)(buf + len); | |
364 | opt->nd_opt_mtu_type = ND_OPT_MTU; | |
365 | opt->nd_opt_mtu_len = 1; | |
366 | opt->nd_opt_mtu_reserved = 0; | |
367 | opt->nd_opt_mtu_mtu = htonl(zif->rtadv.AdvLinkMTU); | |
368 | len += sizeof(struct nd_opt_mtu); | |
369 | } | |
370 | ||
7eab94f9 LS |
371 | /* |
372 | * There is no limit on the number of configurable recursive DNS | |
373 | * servers or search list entries. We don't want the RA message | |
374 | * to exceed the link's MTU (risking fragmentation) or even | |
375 | * blow the stack buffer allocated for it. | |
376 | */ | |
377 | size_t max_len = MIN(ifp->mtu6 - 40, sizeof(buf)); | |
378 | ||
3eb4fbb0 LS |
379 | /* Recursive DNS servers */ |
380 | struct rtadv_rdnss *rdnss; | |
381 | ||
382 | for (ALL_LIST_ELEMENTS_RO(zif->rtadv.AdvRDNSSList, node, rdnss)) { | |
7eab94f9 LS |
383 | size_t opt_len = |
384 | sizeof(struct nd_opt_rdnss) + sizeof(struct in6_addr); | |
385 | ||
386 | if (len + opt_len > max_len) { | |
387 | zlog_warn( | |
388 | "%s(%u): Tx RA: RDNSS option would exceed MTU, omitting it", | |
389 | ifp->name, ifp->ifindex); | |
390 | goto no_more_opts; | |
391 | } | |
3eb4fbb0 LS |
392 | struct nd_opt_rdnss *opt = (struct nd_opt_rdnss *)(buf + len); |
393 | ||
394 | opt->nd_opt_rdnss_type = ND_OPT_RDNSS; | |
7eab94f9 | 395 | opt->nd_opt_rdnss_len = opt_len / 8; |
3eb4fbb0 LS |
396 | opt->nd_opt_rdnss_reserved = 0; |
397 | opt->nd_opt_rdnss_lifetime = htonl( | |
398 | rdnss->lifetime_set | |
399 | ? rdnss->lifetime | |
400 | : MAX(1, 0.003 * zif->rtadv.MaxRtrAdvInterval)); | |
401 | ||
402 | len += sizeof(struct nd_opt_rdnss); | |
7eab94f9 | 403 | |
3eb4fbb0 LS |
404 | IPV6_ADDR_COPY(buf + len, &rdnss->addr); |
405 | len += sizeof(struct in6_addr); | |
406 | } | |
407 | ||
408 | /* DNS search list */ | |
409 | struct rtadv_dnssl *dnssl; | |
410 | ||
411 | for (ALL_LIST_ELEMENTS_RO(zif->rtadv.AdvDNSSLList, node, dnssl)) { | |
7eab94f9 LS |
412 | size_t opt_len = sizeof(struct nd_opt_dnssl) |
413 | + ((dnssl->encoded_len + 7) & ~7); | |
414 | ||
415 | if (len + opt_len > max_len) { | |
416 | zlog_warn( | |
417 | "%s(%u): Tx RA: DNSSL option would exceed MTU, omitting it", | |
418 | ifp->name, ifp->ifindex); | |
419 | goto no_more_opts; | |
420 | } | |
3eb4fbb0 LS |
421 | struct nd_opt_dnssl *opt = (struct nd_opt_dnssl *)(buf + len); |
422 | ||
423 | opt->nd_opt_dnssl_type = ND_OPT_DNSSL; | |
7eab94f9 | 424 | opt->nd_opt_dnssl_len = opt_len / 8; |
3eb4fbb0 LS |
425 | opt->nd_opt_dnssl_reserved = 0; |
426 | opt->nd_opt_dnssl_lifetime = htonl( | |
427 | dnssl->lifetime_set | |
428 | ? dnssl->lifetime | |
429 | : MAX(1, 0.003 * zif->rtadv.MaxRtrAdvInterval)); | |
430 | ||
431 | len += sizeof(struct nd_opt_dnssl); | |
432 | ||
3eb4fbb0 LS |
433 | memcpy(buf + len, dnssl->encoded_name, dnssl->encoded_len); |
434 | len += dnssl->encoded_len; | |
435 | ||
436 | /* Zero-pad to 8-octet boundary */ | |
437 | while (len % 8) | |
438 | buf[len++] = '\0'; | |
3eb4fbb0 LS |
439 | } |
440 | ||
7eab94f9 LS |
441 | no_more_opts: |
442 | ||
d62a17ae | 443 | msg.msg_name = (void *)&addr; |
444 | msg.msg_namelen = sizeof(struct sockaddr_in6); | |
445 | msg.msg_iov = &iov; | |
446 | msg.msg_iovlen = 1; | |
447 | msg.msg_control = (void *)adata; | |
448 | msg.msg_controllen = CMSG_SPACE(sizeof(struct in6_pktinfo)); | |
449 | msg.msg_flags = 0; | |
450 | iov.iov_base = buf; | |
451 | iov.iov_len = len; | |
452 | ||
adf0e7c6 | 453 | cmsgptr = CMSG_FIRSTHDR(&msg); |
d62a17ae | 454 | cmsgptr->cmsg_len = CMSG_LEN(sizeof(struct in6_pktinfo)); |
455 | cmsgptr->cmsg_level = IPPROTO_IPV6; | |
456 | cmsgptr->cmsg_type = IPV6_PKTINFO; | |
457 | ||
458 | pkt = (struct in6_pktinfo *)CMSG_DATA(cmsgptr); | |
459 | memset(&pkt->ipi6_addr, 0, sizeof(struct in6_addr)); | |
460 | pkt->ipi6_ifindex = ifp->ifindex; | |
461 | ||
462 | ret = sendmsg(sock, &msg, 0); | |
463 | if (ret < 0) { | |
450971aa | 464 | flog_err_sys(EC_LIB_SOCKET, |
09c866e3 QY |
465 | "%s(%u): Tx RA failed, socket %u error %d (%s)", |
466 | ifp->name, ifp->ifindex, sock, errno, | |
467 | safe_strerror(errno)); | |
d62a17ae | 468 | } else |
469 | zif->ra_sent++; | |
718e3744 | 470 | } |
471 | ||
d62a17ae | 472 | static int rtadv_timer(struct thread *thread) |
718e3744 | 473 | { |
df9c8c57 | 474 | struct zebra_vrf *zvrf = THREAD_ARG(thread); |
d62a17ae | 475 | struct vrf *vrf; |
d62a17ae | 476 | struct interface *ifp; |
477 | struct zebra_if *zif; | |
478 | int period; | |
479 | ||
df9c8c57 PG |
480 | zvrf->rtadv.ra_timer = NULL; |
481 | if (zvrf->rtadv.adv_msec_if_count == 0) { | |
d62a17ae | 482 | period = 1000; /* 1 s */ |
df9c8c57 | 483 | rtadv_event(zvrf, RTADV_TIMER, 1 /* 1 s */); |
d62a17ae | 484 | } else { |
485 | period = 10; /* 10 ms */ | |
df9c8c57 | 486 | rtadv_event(zvrf, RTADV_TIMER_MSEC, 10 /* 10 ms */); |
d62a17ae | 487 | } |
488 | ||
a2addae8 | 489 | RB_FOREACH (vrf, vrf_id_head, &vrfs_by_id) |
451fda4f | 490 | FOR_ALL_INTERFACES (vrf, ifp) { |
a2addae8 RW |
491 | if (if_is_loopback(ifp) |
492 | || CHECK_FLAG(ifp->status, | |
493 | ZEBRA_INTERFACE_VRF_LOOPBACK) | |
494 | || !if_is_operative(ifp)) | |
495 | continue; | |
496 | ||
497 | zif = ifp->info; | |
498 | ||
499 | if (zif->rtadv.AdvSendAdvertisements) { | |
adee8f21 DS |
500 | if (zif->rtadv.inFastRexmit |
501 | && zif->rtadv.UseFastRexmit) { | |
a2addae8 RW |
502 | /* We assume we fast rexmit every sec so |
503 | * no | |
504 | * additional vars */ | |
505 | if (--zif->rtadv.NumFastReXmitsRemain | |
506 | <= 0) | |
507 | zif->rtadv.inFastRexmit = 0; | |
508 | ||
509 | if (IS_ZEBRA_DEBUG_SEND) | |
510 | zlog_debug( | |
511 | "Fast RA Rexmit on interface %s", | |
512 | ifp->name); | |
513 | ||
9245fe61 | 514 | rtadv_send_packet(rtadv_get_socket(zvrf), |
a3be9fa1 | 515 | ifp); |
a2addae8 RW |
516 | } else { |
517 | zif->rtadv.AdvIntervalTimer -= period; | |
518 | if (zif->rtadv.AdvIntervalTimer <= 0) { | |
519 | /* FIXME: using | |
520 | MaxRtrAdvInterval each | |
521 | time isn't what section | |
522 | 6.2.4 of RFC4861 tells to do. | |
523 | */ | |
524 | zif->rtadv.AdvIntervalTimer = | |
525 | zif->rtadv | |
526 | .MaxRtrAdvInterval; | |
527 | rtadv_send_packet( | |
9245fe61 PG |
528 | rtadv_get_socket(zvrf), |
529 | ifp); | |
a2addae8 | 530 | } |
d62a17ae | 531 | } |
532 | } | |
533 | } | |
d62a17ae | 534 | |
535 | return 0; | |
718e3744 | 536 | } |
537 | ||
d62a17ae | 538 | static void rtadv_process_solicit(struct interface *ifp) |
718e3744 | 539 | { |
a36898e7 | 540 | struct zebra_vrf *zvrf = vrf_info_lookup(ifp->vrf_id); |
adee8f21 | 541 | struct zebra_if *zif; |
718e3744 | 542 | |
df9c8c57 | 543 | assert(zvrf); |
adee8f21 DS |
544 | zif = ifp->info; |
545 | ||
546 | /* | |
547 | * If FastRetransmit is enabled, send the RA immediately. | |
548 | * If not enabled but it has been more than MIN_DELAY_BETWEEN_RAS | |
549 | * (3 seconds) since the last RA was sent, send it now and reset | |
550 | * the timer to start at the max (configured) again. | |
551 | * If not enabled and it is less than 3 seconds since the last | |
552 | * RA packet was sent, set the timer for 3 seconds so the next | |
553 | * one will be sent with a minimum of 3 seconds between RAs. | |
554 | * RFC4861 sec 6.2.6 | |
555 | */ | |
556 | if ((zif->rtadv.UseFastRexmit) | |
557 | || (zif->rtadv.AdvIntervalTimer <= | |
558 | (zif->rtadv.MaxRtrAdvInterval - MIN_DELAY_BETWEEN_RAS))) { | |
559 | rtadv_send_packet(rtadv_get_socket(zvrf), ifp); | |
560 | zif->rtadv.AdvIntervalTimer = zif->rtadv.MaxRtrAdvInterval; | |
561 | } else | |
562 | zif->rtadv.AdvIntervalTimer = MIN_DELAY_BETWEEN_RAS; | |
718e3744 | 563 | } |
564 | ||
71974bf5 DS |
565 | /* |
566 | * This function processes optional attributes off of | |
567 | * end of a RA packet received. At this point in | |
568 | * time we only care about this in one situation | |
569 | * which is when a interface does not have a LL | |
570 | * v6 address. We still need to be able to install | |
571 | * the mac address for v4 to v6 resolution | |
572 | */ | |
573 | static void rtadv_process_optional(uint8_t *optional, unsigned int len, | |
574 | struct interface *ifp, | |
575 | struct sockaddr_in6 *addr) | |
576 | { | |
577 | char *mac; | |
578 | ||
579 | while (len > 0) { | |
580 | struct nd_opt_hdr *opt_hdr = (struct nd_opt_hdr *)optional; | |
581 | ||
582 | switch(opt_hdr->nd_opt_type) { | |
583 | case ND_OPT_SOURCE_LINKADDR: | |
584 | mac = (char *)(optional+2); | |
585 | if_nbr_mac_to_ipv4ll_neigh_update(ifp, mac, | |
586 | &addr->sin6_addr, 1); | |
587 | break; | |
588 | default: | |
589 | break; | |
590 | } | |
591 | ||
592 | len -= 8 * opt_hdr->nd_opt_len; | |
593 | optional += 8 * opt_hdr->nd_opt_len; | |
594 | } | |
595 | } | |
596 | ||
d7c0a89a | 597 | static void rtadv_process_advert(uint8_t *msg, unsigned int len, |
d62a17ae | 598 | struct interface *ifp, |
599 | struct sockaddr_in6 *addr) | |
718e3744 | 600 | { |
d62a17ae | 601 | struct nd_router_advert *radvert; |
602 | char addr_str[INET6_ADDRSTRLEN]; | |
603 | struct zebra_if *zif; | |
604 | struct prefix p; | |
718e3744 | 605 | |
d62a17ae | 606 | zif = ifp->info; |
a80beece | 607 | |
d62a17ae | 608 | inet_ntop(AF_INET6, &addr->sin6_addr, addr_str, INET6_ADDRSTRLEN); |
609 | ||
610 | if (len < sizeof(struct nd_router_advert)) { | |
71974bf5 DS |
611 | if (IS_ZEBRA_DEBUG_PACKET) |
612 | zlog_debug("%s(%u): Rx RA with invalid length %d from %s", | |
613 | ifp->name, ifp->ifindex, len, addr_str); | |
d62a17ae | 614 | return; |
615 | } | |
71974bf5 | 616 | |
d62a17ae | 617 | if (!IN6_IS_ADDR_LINKLOCAL(&addr->sin6_addr)) { |
71974bf5 DS |
618 | rtadv_process_optional(msg + sizeof(struct nd_router_advert), |
619 | len - sizeof(struct nd_router_advert), | |
620 | ifp, addr); | |
621 | if (IS_ZEBRA_DEBUG_PACKET) | |
622 | zlog_debug("%s(%u): Rx RA with non-linklocal source address from %s", | |
623 | ifp->name, ifp->ifindex, addr_str); | |
d62a17ae | 624 | return; |
625 | } | |
626 | ||
627 | radvert = (struct nd_router_advert *)msg; | |
628 | ||
629 | if ((radvert->nd_ra_curhoplimit && zif->rtadv.AdvCurHopLimit) | |
630 | && (radvert->nd_ra_curhoplimit != zif->rtadv.AdvCurHopLimit)) { | |
9df414fe | 631 | flog_warn( |
e914ccbe | 632 | EC_ZEBRA_RA_PARAM_MISMATCH, |
d62a17ae | 633 | "%s(%u): Rx RA - our AdvCurHopLimit doesn't agree with %s", |
634 | ifp->name, ifp->ifindex, addr_str); | |
635 | } | |
636 | ||
637 | if ((radvert->nd_ra_flags_reserved & ND_RA_FLAG_MANAGED) | |
638 | && !zif->rtadv.AdvManagedFlag) { | |
9df414fe | 639 | flog_warn( |
e914ccbe | 640 | EC_ZEBRA_RA_PARAM_MISMATCH, |
d62a17ae | 641 | "%s(%u): Rx RA - our AdvManagedFlag doesn't agree with %s", |
642 | ifp->name, ifp->ifindex, addr_str); | |
643 | } | |
644 | ||
645 | if ((radvert->nd_ra_flags_reserved & ND_RA_FLAG_OTHER) | |
646 | && !zif->rtadv.AdvOtherConfigFlag) { | |
9df414fe | 647 | flog_warn( |
e914ccbe | 648 | EC_ZEBRA_RA_PARAM_MISMATCH, |
d62a17ae | 649 | "%s(%u): Rx RA - our AdvOtherConfigFlag doesn't agree with %s", |
650 | ifp->name, ifp->ifindex, addr_str); | |
651 | } | |
652 | ||
653 | if ((radvert->nd_ra_reachable && zif->rtadv.AdvReachableTime) | |
654 | && (ntohl(radvert->nd_ra_reachable) | |
655 | != zif->rtadv.AdvReachableTime)) { | |
9df414fe | 656 | flog_warn( |
e914ccbe | 657 | EC_ZEBRA_RA_PARAM_MISMATCH, |
d62a17ae | 658 | "%s(%u): Rx RA - our AdvReachableTime doesn't agree with %s", |
659 | ifp->name, ifp->ifindex, addr_str); | |
660 | } | |
661 | ||
662 | if ((radvert->nd_ra_retransmit && zif->rtadv.AdvRetransTimer) | |
663 | && (ntohl(radvert->nd_ra_retransmit) | |
664 | != (unsigned int)zif->rtadv.AdvRetransTimer)) { | |
9df414fe | 665 | flog_warn( |
e914ccbe | 666 | EC_ZEBRA_RA_PARAM_MISMATCH, |
d62a17ae | 667 | "%s(%u): Rx RA - our AdvRetransTimer doesn't agree with %s", |
668 | ifp->name, ifp->ifindex, addr_str); | |
669 | } | |
670 | ||
671 | /* Create entry for neighbor if not known. */ | |
672 | p.family = AF_INET6; | |
a85297a7 | 673 | IPV6_ADDR_COPY(&p.u.prefix6, &addr->sin6_addr); |
d62a17ae | 674 | p.prefixlen = IPV6_MAX_PREFIXLEN; |
675 | ||
676 | if (!nbr_connected_check(ifp, &p)) | |
677 | nbr_connected_add_ipv6(ifp, &addr->sin6_addr); | |
718e3744 | 678 | } |
679 | ||
d62a17ae | 680 | |
d7c0a89a | 681 | static void rtadv_process_packet(uint8_t *buf, unsigned int len, |
d62a17ae | 682 | ifindex_t ifindex, int hoplimit, |
683 | struct sockaddr_in6 *from, | |
df9c8c57 | 684 | struct zebra_vrf *zvrf) |
718e3744 | 685 | { |
d62a17ae | 686 | struct icmp6_hdr *icmph; |
687 | struct interface *ifp; | |
688 | struct zebra_if *zif; | |
689 | char addr_str[INET6_ADDRSTRLEN]; | |
690 | ||
691 | inet_ntop(AF_INET6, &from->sin6_addr, addr_str, INET6_ADDRSTRLEN); | |
692 | ||
693 | /* Interface search. */ | |
df9c8c57 | 694 | ifp = if_lookup_by_index(ifindex, zvrf->vrf->vrf_id); |
d62a17ae | 695 | if (ifp == NULL) { |
e914ccbe | 696 | flog_warn(EC_ZEBRA_UNKNOWN_INTERFACE, |
9df414fe | 697 | "RA/RS received on unknown IF %u from %s", ifindex, |
d62a17ae | 698 | addr_str); |
699 | return; | |
700 | } | |
701 | ||
702 | if (IS_ZEBRA_DEBUG_PACKET) | |
703 | zlog_debug("%s(%u): Rx RA/RS len %d from %s", ifp->name, | |
704 | ifp->ifindex, len, addr_str); | |
705 | ||
706 | if (if_is_loopback(ifp) | |
707 | || CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK)) | |
708 | return; | |
718e3744 | 709 | |
d62a17ae | 710 | /* Check interface configuration. */ |
711 | zif = ifp->info; | |
712 | if (!zif->rtadv.AdvSendAdvertisements) | |
713 | return; | |
718e3744 | 714 | |
d62a17ae | 715 | /* ICMP message length check. */ |
716 | if (len < sizeof(struct icmp6_hdr)) { | |
9df414fe QY |
717 | zlog_debug("%s(%u): Rx RA with Invalid ICMPV6 packet length %d", |
718 | ifp->name, ifp->ifindex, len); | |
d62a17ae | 719 | return; |
720 | } | |
721 | ||
722 | icmph = (struct icmp6_hdr *)buf; | |
718e3744 | 723 | |
d62a17ae | 724 | /* ICMP message type check. */ |
725 | if (icmph->icmp6_type != ND_ROUTER_SOLICIT | |
726 | && icmph->icmp6_type != ND_ROUTER_ADVERT) { | |
9df414fe QY |
727 | zlog_debug("%s(%u): Rx RA - Unwanted ICMPV6 message type %d", |
728 | ifp->name, ifp->ifindex, icmph->icmp6_type); | |
d62a17ae | 729 | return; |
730 | } | |
718e3744 | 731 | |
d62a17ae | 732 | /* Hoplimit check. */ |
733 | if (hoplimit >= 0 && hoplimit != 255) { | |
9df414fe QY |
734 | zlog_debug("%s(%u): Rx RA - Invalid hoplimit %d", ifp->name, |
735 | ifp->ifindex, hoplimit); | |
d62a17ae | 736 | return; |
737 | } | |
718e3744 | 738 | |
d62a17ae | 739 | /* Check ICMP message type. */ |
740 | if (icmph->icmp6_type == ND_ROUTER_SOLICIT) | |
741 | rtadv_process_solicit(ifp); | |
742 | else if (icmph->icmp6_type == ND_ROUTER_ADVERT) | |
743 | rtadv_process_advert(buf, len, ifp, from); | |
718e3744 | 744 | |
d62a17ae | 745 | return; |
718e3744 | 746 | } |
747 | ||
d62a17ae | 748 | static int rtadv_read(struct thread *thread) |
718e3744 | 749 | { |
d62a17ae | 750 | int sock; |
751 | int len; | |
d7c0a89a | 752 | uint8_t buf[RTADV_MSG_SIZE]; |
d62a17ae | 753 | struct sockaddr_in6 from; |
754 | ifindex_t ifindex = 0; | |
755 | int hoplimit = -1; | |
df9c8c57 | 756 | struct zebra_vrf *zvrf = THREAD_ARG(thread); |
d62a17ae | 757 | |
758 | sock = THREAD_FD(thread); | |
df9c8c57 | 759 | zvrf->rtadv.ra_read = NULL; |
d62a17ae | 760 | |
761 | /* Register myself. */ | |
df9c8c57 | 762 | rtadv_event(zvrf, RTADV_READ, sock); |
d62a17ae | 763 | |
df9c8c57 | 764 | len = rtadv_recv_packet(zvrf, sock, buf, sizeof(buf), &from, &ifindex, |
d62a17ae | 765 | &hoplimit); |
766 | ||
767 | if (len < 0) { | |
450971aa | 768 | flog_err_sys(EC_LIB_SOCKET, |
9df414fe QY |
769 | "RA/RS recv failed, socket %u error %s", sock, |
770 | safe_strerror(errno)); | |
d62a17ae | 771 | return len; |
772 | } | |
773 | ||
df9c8c57 | 774 | rtadv_process_packet(buf, (unsigned)len, ifindex, hoplimit, &from, zvrf); |
d62a17ae | 775 | |
776 | return 0; | |
718e3744 | 777 | } |
6b0655a2 | 778 | |
fe533c56 | 779 | static int rtadv_make_socket(ns_id_t ns_id) |
718e3744 | 780 | { |
8d2dcc85 | 781 | int sock = -1; |
d62a17ae | 782 | int ret = 0; |
783 | struct icmp6_filter filter; | |
784 | ||
0cf6db21 | 785 | frr_with_privs(&zserv_privs) { |
d62a17ae | 786 | |
01b9e3fd | 787 | sock = ns_socket(AF_INET6, SOCK_RAW, IPPROTO_ICMPV6, ns_id); |
d62a17ae | 788 | |
01b9e3fd | 789 | } |
d62a17ae | 790 | |
791 | if (sock < 0) { | |
d62a17ae | 792 | return -1; |
793 | } | |
794 | ||
795 | ret = setsockopt_ipv6_pktinfo(sock, 1); | |
796 | if (ret < 0) { | |
797 | close(sock); | |
798 | return ret; | |
799 | } | |
800 | ret = setsockopt_ipv6_multicast_loop(sock, 0); | |
801 | if (ret < 0) { | |
802 | close(sock); | |
803 | return ret; | |
804 | } | |
805 | ret = setsockopt_ipv6_unicast_hops(sock, 255); | |
806 | if (ret < 0) { | |
807 | close(sock); | |
808 | return ret; | |
809 | } | |
810 | ret = setsockopt_ipv6_multicast_hops(sock, 255); | |
811 | if (ret < 0) { | |
812 | close(sock); | |
813 | return ret; | |
814 | } | |
815 | ret = setsockopt_ipv6_hoplimit(sock, 1); | |
816 | if (ret < 0) { | |
817 | close(sock); | |
818 | return ret; | |
819 | } | |
820 | ||
821 | ICMP6_FILTER_SETBLOCKALL(&filter); | |
822 | ICMP6_FILTER_SETPASS(ND_ROUTER_SOLICIT, &filter); | |
823 | ICMP6_FILTER_SETPASS(ND_ROUTER_ADVERT, &filter); | |
824 | ||
825 | ret = setsockopt(sock, IPPROTO_ICMPV6, ICMP6_FILTER, &filter, | |
826 | sizeof(struct icmp6_filter)); | |
827 | if (ret < 0) { | |
828 | zlog_info("ICMP6_FILTER set fail: %s", safe_strerror(errno)); | |
44f12f20 | 829 | close(sock); |
d62a17ae | 830 | return ret; |
831 | } | |
832 | ||
833 | return sock; | |
718e3744 | 834 | } |
835 | ||
d62a17ae | 836 | static struct rtadv_prefix *rtadv_prefix_new(void) |
718e3744 | 837 | { |
d62a17ae | 838 | return XCALLOC(MTYPE_RTADV_PREFIX, sizeof(struct rtadv_prefix)); |
718e3744 | 839 | } |
840 | ||
d62a17ae | 841 | static void rtadv_prefix_free(struct rtadv_prefix *rtadv_prefix) |
718e3744 | 842 | { |
d62a17ae | 843 | XFREE(MTYPE_RTADV_PREFIX, rtadv_prefix); |
844 | } | |
718e3744 | 845 | |
d62a17ae | 846 | static struct rtadv_prefix *rtadv_prefix_lookup(struct list *rplist, |
847 | struct prefix_ipv6 *p) | |
848 | { | |
849 | struct listnode *node; | |
850 | struct rtadv_prefix *rprefix; | |
851 | ||
852 | for (ALL_LIST_ELEMENTS_RO(rplist, node, rprefix)) | |
853 | if (prefix_same((struct prefix *)&rprefix->prefix, | |
854 | (struct prefix *)p)) | |
855 | return rprefix; | |
856 | return NULL; | |
718e3744 | 857 | } |
858 | ||
d62a17ae | 859 | static struct rtadv_prefix *rtadv_prefix_get(struct list *rplist, |
860 | struct prefix_ipv6 *p) | |
718e3744 | 861 | { |
d62a17ae | 862 | struct rtadv_prefix *rprefix; |
863 | ||
864 | rprefix = rtadv_prefix_lookup(rplist, p); | |
865 | if (rprefix) | |
866 | return rprefix; | |
718e3744 | 867 | |
d62a17ae | 868 | rprefix = rtadv_prefix_new(); |
869 | memcpy(&rprefix->prefix, p, sizeof(struct prefix_ipv6)); | |
870 | listnode_add(rplist, rprefix); | |
718e3744 | 871 | |
d62a17ae | 872 | return rprefix; |
718e3744 | 873 | } |
874 | ||
d62a17ae | 875 | static void rtadv_prefix_set(struct zebra_if *zif, struct rtadv_prefix *rp) |
718e3744 | 876 | { |
d62a17ae | 877 | struct rtadv_prefix *rprefix; |
878 | ||
879 | rprefix = rtadv_prefix_get(zif->rtadv.AdvPrefixList, &rp->prefix); | |
880 | ||
881 | /* Set parameters. */ | |
882 | rprefix->AdvValidLifetime = rp->AdvValidLifetime; | |
883 | rprefix->AdvPreferredLifetime = rp->AdvPreferredLifetime; | |
884 | rprefix->AdvOnLinkFlag = rp->AdvOnLinkFlag; | |
885 | rprefix->AdvAutonomousFlag = rp->AdvAutonomousFlag; | |
886 | rprefix->AdvRouterAddressFlag = rp->AdvRouterAddressFlag; | |
718e3744 | 887 | } |
888 | ||
d62a17ae | 889 | static int rtadv_prefix_reset(struct zebra_if *zif, struct rtadv_prefix *rp) |
718e3744 | 890 | { |
d62a17ae | 891 | struct rtadv_prefix *rprefix; |
892 | ||
893 | rprefix = rtadv_prefix_lookup(zif->rtadv.AdvPrefixList, &rp->prefix); | |
894 | if (rprefix != NULL) { | |
895 | listnode_delete(zif->rtadv.AdvPrefixList, (void *)rprefix); | |
896 | rtadv_prefix_free(rprefix); | |
897 | return 1; | |
898 | } else | |
899 | return 0; | |
718e3744 | 900 | } |
901 | ||
d62a17ae | 902 | static void ipv6_nd_suppress_ra_set(struct interface *ifp, |
903 | ipv6_nd_suppress_ra_status status) | |
b6120505 | 904 | { |
d62a17ae | 905 | struct zebra_if *zif; |
906 | struct zebra_vrf *zvrf; | |
d62a17ae | 907 | |
908 | zif = ifp->info; | |
a36898e7 | 909 | zvrf = vrf_info_lookup(ifp->vrf_id); |
d62a17ae | 910 | |
911 | if (status == RA_SUPPRESS) { | |
912 | /* RA is currently enabled */ | |
913 | if (zif->rtadv.AdvSendAdvertisements) { | |
914 | zif->rtadv.AdvSendAdvertisements = 0; | |
915 | zif->rtadv.AdvIntervalTimer = 0; | |
df9c8c57 | 916 | zvrf->rtadv.adv_if_count--; |
d62a17ae | 917 | |
9245fe61 | 918 | if_leave_all_router(rtadv_get_socket(zvrf), ifp); |
d62a17ae | 919 | |
df9c8c57 PG |
920 | if (zvrf->rtadv.adv_if_count == 0) |
921 | rtadv_event(zvrf, RTADV_STOP, 0); | |
d62a17ae | 922 | } |
923 | } else { | |
924 | if (!zif->rtadv.AdvSendAdvertisements) { | |
925 | zif->rtadv.AdvSendAdvertisements = 1; | |
926 | zif->rtadv.AdvIntervalTimer = 0; | |
df9c8c57 | 927 | zvrf->rtadv.adv_if_count++; |
d62a17ae | 928 | |
adee8f21 DS |
929 | if ((zif->rtadv.MaxRtrAdvInterval >= 1000) |
930 | && zif->rtadv.UseFastRexmit) { | |
931 | /* | |
932 | * Enable Fast RA only when RA interval is in | |
933 | * secs and Fast RA retransmit is enabled | |
934 | */ | |
d62a17ae | 935 | zif->rtadv.inFastRexmit = 1; |
936 | zif->rtadv.NumFastReXmitsRemain = | |
937 | RTADV_NUM_FAST_REXMITS; | |
938 | } | |
939 | ||
9245fe61 | 940 | if_join_all_router(rtadv_get_socket(zvrf), ifp); |
d62a17ae | 941 | |
df9c8c57 PG |
942 | if (zvrf->rtadv.adv_if_count == 1) |
943 | rtadv_event(zvrf, RTADV_START, | |
9245fe61 | 944 | rtadv_get_socket(zvrf)); |
d62a17ae | 945 | } |
946 | } | |
b6120505 DW |
947 | } |
948 | ||
4a04e5f7 | 949 | /* |
950 | * Handle client (BGP) message to enable or disable IPv6 RA on an interface. | |
951 | * Note that while the client could request RA on an interface on which the | |
952 | * operator has not enabled RA, RA won't be disabled upon client request | |
5c81b96a | 953 | * if the operator has explicitly enabled RA. The enable request can also |
954 | * specify a RA interval (in seconds). | |
4a04e5f7 | 955 | */ |
1002497a | 956 | static void zebra_interface_radv_set(ZAPI_HANDLER_ARGS, int enable) |
4a04e5f7 | 957 | { |
d62a17ae | 958 | struct stream *s; |
ec93aa12 | 959 | ifindex_t ifindex; |
d62a17ae | 960 | struct interface *ifp; |
961 | struct zebra_if *zif; | |
962 | int ra_interval; | |
963 | ||
1002497a | 964 | s = msg; |
d62a17ae | 965 | |
966 | /* Get interface index and RA interval. */ | |
ec93aa12 DS |
967 | STREAM_GETL(s, ifindex); |
968 | STREAM_GETL(s, ra_interval); | |
d62a17ae | 969 | |
970 | if (IS_ZEBRA_DEBUG_EVENT) | |
971 | zlog_debug("%u: IF %u RA %s from client %s, interval %ds", | |
1002497a QY |
972 | zvrf_id(zvrf), ifindex, |
973 | enable ? "enable" : "disable", | |
d62a17ae | 974 | zebra_route_string(client->proto), ra_interval); |
975 | ||
976 | /* Locate interface and check VRF match. */ | |
df9c8c57 | 977 | ifp = if_lookup_by_index(ifindex, zvrf->vrf->vrf_id); |
d62a17ae | 978 | if (!ifp) { |
e914ccbe | 979 | flog_warn(EC_ZEBRA_UNKNOWN_INTERFACE, |
9df414fe | 980 | "%u: IF %u RA %s client %s - interface unknown", |
1002497a | 981 | zvrf_id(zvrf), ifindex, enable ? "enable" : "disable", |
d62a17ae | 982 | zebra_route_string(client->proto)); |
983 | return; | |
984 | } | |
a36898e7 | 985 | if (ifp->vrf_id != zvrf_id(zvrf)) { |
9df414fe QY |
986 | zlog_debug( |
987 | "%u: IF %u RA %s client %s - VRF mismatch, IF VRF %u", | |
988 | zvrf_id(zvrf), ifindex, enable ? "enable" : "disable", | |
a36898e7 | 989 | zebra_route_string(client->proto), ifp->vrf_id); |
d62a17ae | 990 | return; |
991 | } | |
992 | ||
993 | zif = ifp->info; | |
1002497a | 994 | if (enable) { |
3ea48364 | 995 | SET_FLAG(zif->rtadv.ra_configured, BGP_RA_CONFIGURED); |
d62a17ae | 996 | ipv6_nd_suppress_ra_set(ifp, RA_ENABLE); |
997 | if (ra_interval | |
996c9314 LB |
998 | && (ra_interval * 1000) < zif->rtadv.MaxRtrAdvInterval |
999 | && !CHECK_FLAG(zif->rtadv.ra_configured, | |
1000 | VTY_RA_INTERVAL_CONFIGURED)) | |
d62a17ae | 1001 | zif->rtadv.MaxRtrAdvInterval = ra_interval * 1000; |
1002 | } else { | |
3ea48364 DS |
1003 | UNSET_FLAG(zif->rtadv.ra_configured, BGP_RA_CONFIGURED); |
1004 | if (!CHECK_FLAG(zif->rtadv.ra_configured, | |
1005 | VTY_RA_INTERVAL_CONFIGURED)) | |
d62a17ae | 1006 | zif->rtadv.MaxRtrAdvInterval = |
1007 | RTADV_MAX_RTR_ADV_INTERVAL; | |
3ea48364 | 1008 | if (!CHECK_FLAG(zif->rtadv.ra_configured, VTY_RA_CONFIGURED)) |
d62a17ae | 1009 | ipv6_nd_suppress_ra_set(ifp, RA_SUPPRESS); |
d62a17ae | 1010 | } |
ec93aa12 DS |
1011 | stream_failure: |
1012 | return; | |
4a04e5f7 | 1013 | } |
1014 | ||
89f4e507 QY |
1015 | void zebra_interface_radv_disable(ZAPI_HANDLER_ARGS) |
1016 | { | |
1002497a | 1017 | zebra_interface_radv_set(client, hdr, msg, zvrf, 0); |
89f4e507 | 1018 | } |
89f4e507 QY |
1019 | void zebra_interface_radv_enable(ZAPI_HANDLER_ARGS) |
1020 | { | |
1002497a | 1021 | zebra_interface_radv_set(client, hdr, msg, zvrf, 1); |
89f4e507 QY |
1022 | } |
1023 | ||
adee8f21 DS |
1024 | DEFUN (ipv6_nd_ra_fast_retrans, |
1025 | ipv6_nd_ra_fast_retrans_cmd, | |
1026 | "ipv6 nd ra-fast-retrans", | |
1027 | "Interface IPv6 config commands\n" | |
1028 | "Neighbor discovery\n" | |
1029 | "Fast retransmit of RA packets\n") | |
1030 | { | |
1031 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1032 | struct zebra_if *zif = ifp->info; | |
1033 | ||
1034 | if (if_is_loopback(ifp) | |
1035 | || CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK)) { | |
1036 | vty_out(vty, | |
1037 | "Cannot configure IPv6 Router Advertisements on this interface\n"); | |
1038 | return CMD_WARNING_CONFIG_FAILED; | |
1039 | } | |
1040 | ||
1041 | zif->rtadv.UseFastRexmit = true; | |
1042 | ||
1043 | return CMD_SUCCESS; | |
1044 | } | |
1045 | ||
1046 | DEFUN (no_ipv6_nd_ra_fast_retrans, | |
1047 | no_ipv6_nd_ra_fast_retrans_cmd, | |
1048 | "no ipv6 nd ra-fast-retrans", | |
1049 | NO_STR | |
1050 | "Interface IPv6 config commands\n" | |
1051 | "Neighbor discovery\n" | |
1052 | "Fast retransmit of RA packets\n") | |
1053 | { | |
1054 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1055 | struct zebra_if *zif = ifp->info; | |
1056 | ||
1057 | if (if_is_loopback(ifp) | |
1058 | || CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK)) { | |
1059 | vty_out(vty, | |
1060 | "Cannot configure IPv6 Router Advertisements on this interface\n"); | |
1061 | return CMD_WARNING_CONFIG_FAILED; | |
1062 | } | |
1063 | ||
1064 | zif->rtadv.UseFastRexmit = false; | |
1065 | ||
1066 | return CMD_SUCCESS; | |
1067 | } | |
1068 | ||
718e3744 | 1069 | DEFUN (ipv6_nd_suppress_ra, |
1070 | ipv6_nd_suppress_ra_cmd, | |
1071 | "ipv6 nd suppress-ra", | |
3e31cded | 1072 | "Interface IPv6 config commands\n" |
718e3744 | 1073 | "Neighbor discovery\n" |
1074 | "Suppress Router Advertisement\n") | |
1075 | { | |
d62a17ae | 1076 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1077 | struct zebra_if *zif = ifp->info; | |
1078 | ||
1079 | if (if_is_loopback(ifp) | |
1080 | || CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK)) { | |
1081 | vty_out(vty, | |
1082 | "Cannot configure IPv6 Router Advertisements on this interface\n"); | |
1083 | return CMD_WARNING_CONFIG_FAILED; | |
1084 | } | |
1085 | ||
3ea48364 DS |
1086 | if (!CHECK_FLAG(zif->rtadv.ra_configured, BGP_RA_CONFIGURED)) |
1087 | ipv6_nd_suppress_ra_set(ifp, RA_SUPPRESS); | |
1088 | ||
1089 | UNSET_FLAG(zif->rtadv.ra_configured, VTY_RA_CONFIGURED); | |
d62a17ae | 1090 | return CMD_SUCCESS; |
718e3744 | 1091 | } |
1092 | ||
718e3744 | 1093 | DEFUN (no_ipv6_nd_suppress_ra, |
1094 | no_ipv6_nd_suppress_ra_cmd, | |
1095 | "no ipv6 nd suppress-ra", | |
1096 | NO_STR | |
3e31cded | 1097 | "Interface IPv6 config commands\n" |
718e3744 | 1098 | "Neighbor discovery\n" |
1099 | "Suppress Router Advertisement\n") | |
1100 | { | |
d62a17ae | 1101 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1102 | struct zebra_if *zif = ifp->info; | |
1103 | ||
1104 | if (if_is_loopback(ifp) | |
1105 | || CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK)) { | |
1106 | vty_out(vty, | |
1107 | "Cannot configure IPv6 Router Advertisements on this interface\n"); | |
1108 | return CMD_WARNING_CONFIG_FAILED; | |
1109 | } | |
1110 | ||
1111 | ipv6_nd_suppress_ra_set(ifp, RA_ENABLE); | |
3ea48364 | 1112 | SET_FLAG(zif->rtadv.ra_configured, VTY_RA_CONFIGURED); |
d62a17ae | 1113 | return CMD_SUCCESS; |
718e3744 | 1114 | } |
1115 | ||
7cee1bb1 | 1116 | DEFUN (ipv6_nd_ra_interval_msec, |
1117 | ipv6_nd_ra_interval_msec_cmd, | |
6147e2c6 | 1118 | "ipv6 nd ra-interval msec (70-1800000)", |
7cee1bb1 | 1119 | "Interface IPv6 config commands\n" |
1120 | "Neighbor discovery\n" | |
1121 | "Router Advertisement interval\n" | |
3a2d747c | 1122 | "Router Advertisement interval in milliseconds\n" |
7cee1bb1 | 1123 | "Router Advertisement interval in milliseconds\n") |
1124 | { | |
d62a17ae | 1125 | int idx_number = 4; |
1126 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1127 | unsigned interval; | |
1128 | struct zebra_if *zif = ifp->info; | |
df9c8c57 PG |
1129 | struct zebra_vrf *zvrf; |
1130 | ||
a36898e7 | 1131 | zvrf = vrf_info_lookup(ifp->vrf_id); |
d62a17ae | 1132 | |
d62a17ae | 1133 | interval = strtoul(argv[idx_number]->arg, NULL, 10); |
1134 | if ((zif->rtadv.AdvDefaultLifetime != -1 | |
1135 | && interval > (unsigned)zif->rtadv.AdvDefaultLifetime * 1000)) { | |
1136 | vty_out(vty, | |
1137 | "This ra-interval would conflict with configured ra-lifetime!\n"); | |
1138 | return CMD_WARNING_CONFIG_FAILED; | |
1139 | } | |
1140 | ||
1141 | if (zif->rtadv.MaxRtrAdvInterval % 1000) | |
df9c8c57 | 1142 | zvrf->rtadv.adv_msec_if_count--; |
d62a17ae | 1143 | |
1144 | if (interval % 1000) | |
df9c8c57 | 1145 | zvrf->rtadv.adv_msec_if_count++; |
d62a17ae | 1146 | |
3ea48364 | 1147 | SET_FLAG(zif->rtadv.ra_configured, VTY_RA_INTERVAL_CONFIGURED); |
d62a17ae | 1148 | zif->rtadv.MaxRtrAdvInterval = interval; |
1149 | zif->rtadv.MinRtrAdvInterval = 0.33 * interval; | |
1150 | zif->rtadv.AdvIntervalTimer = 0; | |
1151 | ||
1152 | return CMD_SUCCESS; | |
7cee1bb1 | 1153 | } |
1154 | ||
718e3744 | 1155 | DEFUN (ipv6_nd_ra_interval, |
1156 | ipv6_nd_ra_interval_cmd, | |
6147e2c6 | 1157 | "ipv6 nd ra-interval (1-1800)", |
3e31cded | 1158 | "Interface IPv6 config commands\n" |
718e3744 | 1159 | "Neighbor discovery\n" |
1160 | "Router Advertisement interval\n" | |
1161 | "Router Advertisement interval in seconds\n") | |
1162 | { | |
d62a17ae | 1163 | int idx_number = 3; |
1164 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1165 | unsigned interval; | |
1166 | struct zebra_if *zif = ifp->info; | |
df9c8c57 PG |
1167 | struct zebra_vrf *zvrf; |
1168 | ||
a36898e7 | 1169 | zvrf = vrf_info_lookup(ifp->vrf_id); |
d62a17ae | 1170 | |
d62a17ae | 1171 | interval = strtoul(argv[idx_number]->arg, NULL, 10); |
1172 | if ((zif->rtadv.AdvDefaultLifetime != -1 | |
1173 | && interval > (unsigned)zif->rtadv.AdvDefaultLifetime)) { | |
1174 | vty_out(vty, | |
1175 | "This ra-interval would conflict with configured ra-lifetime!\n"); | |
1176 | return CMD_WARNING_CONFIG_FAILED; | |
1177 | } | |
1178 | ||
1179 | if (zif->rtadv.MaxRtrAdvInterval % 1000) | |
df9c8c57 | 1180 | zvrf->rtadv.adv_msec_if_count--; |
d62a17ae | 1181 | |
1182 | /* convert to milliseconds */ | |
1183 | interval = interval * 1000; | |
1184 | ||
3ea48364 | 1185 | SET_FLAG(zif->rtadv.ra_configured, VTY_RA_INTERVAL_CONFIGURED); |
d62a17ae | 1186 | zif->rtadv.MaxRtrAdvInterval = interval; |
1187 | zif->rtadv.MinRtrAdvInterval = 0.33 * interval; | |
1188 | zif->rtadv.AdvIntervalTimer = 0; | |
1189 | ||
1190 | return CMD_SUCCESS; | |
718e3744 | 1191 | } |
1192 | ||
1193 | DEFUN (no_ipv6_nd_ra_interval, | |
1194 | no_ipv6_nd_ra_interval_cmd, | |
34ccea1e | 1195 | "no ipv6 nd ra-interval [<(1-1800)|msec (1-1800000)>]", |
718e3744 | 1196 | NO_STR |
3e31cded | 1197 | "Interface IPv6 config commands\n" |
718e3744 | 1198 | "Neighbor discovery\n" |
34ccea1e QY |
1199 | "Router Advertisement interval\n" |
1200 | "Router Advertisement interval in seconds\n" | |
1201 | "Specify millisecond router advertisement interval\n" | |
1202 | "Router Advertisement interval in milliseconds\n") | |
718e3744 | 1203 | { |
d62a17ae | 1204 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1205 | struct zebra_if *zif = ifp->info; | |
df9c8c57 PG |
1206 | struct zebra_vrf *zvrf = NULL; |
1207 | ||
a36898e7 | 1208 | zvrf = vrf_info_lookup(ifp->vrf_id); |
d62a17ae | 1209 | |
1210 | if (zif->rtadv.MaxRtrAdvInterval % 1000) | |
df9c8c57 | 1211 | zvrf->rtadv.adv_msec_if_count--; |
d62a17ae | 1212 | |
3ea48364 DS |
1213 | UNSET_FLAG(zif->rtadv.ra_configured, VTY_RA_INTERVAL_CONFIGURED); |
1214 | ||
1215 | if (CHECK_FLAG(zif->rtadv.ra_configured, BGP_RA_CONFIGURED)) | |
1216 | zif->rtadv.MaxRtrAdvInterval = 10000; | |
1217 | else | |
1218 | zif->rtadv.MaxRtrAdvInterval = RTADV_MAX_RTR_ADV_INTERVAL; | |
1219 | ||
d62a17ae | 1220 | zif->rtadv.AdvIntervalTimer = zif->rtadv.MaxRtrAdvInterval; |
3ea48364 | 1221 | zif->rtadv.MinRtrAdvInterval = RTADV_MIN_RTR_ADV_INTERVAL; |
d62a17ae | 1222 | |
1223 | return CMD_SUCCESS; | |
718e3744 | 1224 | } |
1225 | ||
1226 | DEFUN (ipv6_nd_ra_lifetime, | |
1227 | ipv6_nd_ra_lifetime_cmd, | |
6147e2c6 | 1228 | "ipv6 nd ra-lifetime (0-9000)", |
3e31cded | 1229 | "Interface IPv6 config commands\n" |
718e3744 | 1230 | "Neighbor discovery\n" |
1231 | "Router lifetime\n" | |
4afa50b3 | 1232 | "Router lifetime in seconds (0 stands for a non-default gw)\n") |
718e3744 | 1233 | { |
d62a17ae | 1234 | int idx_number = 3; |
1235 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1236 | struct zebra_if *zif = ifp->info; | |
1237 | int lifetime; | |
1238 | ||
1239 | lifetime = strtoul(argv[idx_number]->arg, NULL, 10); | |
1240 | ||
1241 | /* The value to be placed in the Router Lifetime field | |
1242 | * of Router Advertisements sent from the interface, | |
1243 | * in seconds. MUST be either zero or between | |
1244 | * MaxRtrAdvInterval and 9000 seconds. -- RFC4861, 6.2.1 */ | |
1245 | if ((lifetime != 0 && lifetime * 1000 < zif->rtadv.MaxRtrAdvInterval)) { | |
1246 | vty_out(vty, | |
1247 | "This ra-lifetime would conflict with configured ra-interval\n"); | |
1248 | return CMD_WARNING_CONFIG_FAILED; | |
1249 | } | |
1250 | ||
1251 | zif->rtadv.AdvDefaultLifetime = lifetime; | |
1252 | ||
1253 | return CMD_SUCCESS; | |
718e3744 | 1254 | } |
1255 | ||
1256 | DEFUN (no_ipv6_nd_ra_lifetime, | |
1257 | no_ipv6_nd_ra_lifetime_cmd, | |
34ccea1e | 1258 | "no ipv6 nd ra-lifetime [(0-9000)]", |
718e3744 | 1259 | NO_STR |
3e31cded | 1260 | "Interface IPv6 config commands\n" |
718e3744 | 1261 | "Neighbor discovery\n" |
34ccea1e QY |
1262 | "Router lifetime\n" |
1263 | "Router lifetime in seconds (0 stands for a non-default gw)\n") | |
718e3744 | 1264 | { |
d62a17ae | 1265 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1266 | struct zebra_if *zif = ifp->info; | |
718e3744 | 1267 | |
d62a17ae | 1268 | zif->rtadv.AdvDefaultLifetime = -1; |
718e3744 | 1269 | |
d62a17ae | 1270 | return CMD_SUCCESS; |
718e3744 | 1271 | } |
1272 | ||
1273 | DEFUN (ipv6_nd_reachable_time, | |
1274 | ipv6_nd_reachable_time_cmd, | |
6147e2c6 | 1275 | "ipv6 nd reachable-time (1-3600000)", |
3e31cded | 1276 | "Interface IPv6 config commands\n" |
718e3744 | 1277 | "Neighbor discovery\n" |
1278 | "Reachable time\n" | |
1279 | "Reachable time in milliseconds\n") | |
1280 | { | |
d62a17ae | 1281 | int idx_number = 3; |
1282 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1283 | struct zebra_if *zif = ifp->info; | |
1284 | zif->rtadv.AdvReachableTime = strtoul(argv[idx_number]->arg, NULL, 10); | |
1285 | return CMD_SUCCESS; | |
718e3744 | 1286 | } |
1287 | ||
1288 | DEFUN (no_ipv6_nd_reachable_time, | |
1289 | no_ipv6_nd_reachable_time_cmd, | |
34ccea1e | 1290 | "no ipv6 nd reachable-time [(1-3600000)]", |
718e3744 | 1291 | NO_STR |
3e31cded | 1292 | "Interface IPv6 config commands\n" |
718e3744 | 1293 | "Neighbor discovery\n" |
34ccea1e QY |
1294 | "Reachable time\n" |
1295 | "Reachable time in milliseconds\n") | |
718e3744 | 1296 | { |
d62a17ae | 1297 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1298 | struct zebra_if *zif = ifp->info; | |
718e3744 | 1299 | |
d62a17ae | 1300 | zif->rtadv.AdvReachableTime = 0; |
718e3744 | 1301 | |
d62a17ae | 1302 | return CMD_SUCCESS; |
718e3744 | 1303 | } |
1304 | ||
7cee1bb1 | 1305 | DEFUN (ipv6_nd_homeagent_preference, |
1306 | ipv6_nd_homeagent_preference_cmd, | |
6147e2c6 | 1307 | "ipv6 nd home-agent-preference (0-65535)", |
7cee1bb1 | 1308 | "Interface IPv6 config commands\n" |
1309 | "Neighbor discovery\n" | |
1310 | "Home Agent preference\n" | |
4afa50b3 | 1311 | "preference value (default is 0, least preferred)\n") |
7cee1bb1 | 1312 | { |
d62a17ae | 1313 | int idx_number = 3; |
1314 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1315 | struct zebra_if *zif = ifp->info; | |
1316 | zif->rtadv.HomeAgentPreference = | |
1317 | strtoul(argv[idx_number]->arg, NULL, 10); | |
1318 | return CMD_SUCCESS; | |
7cee1bb1 | 1319 | } |
1320 | ||
1321 | DEFUN (no_ipv6_nd_homeagent_preference, | |
1322 | no_ipv6_nd_homeagent_preference_cmd, | |
34ccea1e | 1323 | "no ipv6 nd home-agent-preference [(0-65535)]", |
7cee1bb1 | 1324 | NO_STR |
1325 | "Interface IPv6 config commands\n" | |
1326 | "Neighbor discovery\n" | |
34ccea1e QY |
1327 | "Home Agent preference\n" |
1328 | "preference value (default is 0, least preferred)\n") | |
7cee1bb1 | 1329 | { |
d62a17ae | 1330 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1331 | struct zebra_if *zif = ifp->info; | |
7cee1bb1 | 1332 | |
d62a17ae | 1333 | zif->rtadv.HomeAgentPreference = 0; |
7cee1bb1 | 1334 | |
d62a17ae | 1335 | return CMD_SUCCESS; |
7cee1bb1 | 1336 | } |
1337 | ||
1338 | DEFUN (ipv6_nd_homeagent_lifetime, | |
1339 | ipv6_nd_homeagent_lifetime_cmd, | |
6147e2c6 | 1340 | "ipv6 nd home-agent-lifetime (0-65520)", |
7cee1bb1 | 1341 | "Interface IPv6 config commands\n" |
1342 | "Neighbor discovery\n" | |
1343 | "Home Agent lifetime\n" | |
4afa50b3 | 1344 | "Home Agent lifetime in seconds (0 to track ra-lifetime)\n") |
7cee1bb1 | 1345 | { |
d62a17ae | 1346 | int idx_number = 3; |
1347 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1348 | struct zebra_if *zif = ifp->info; | |
1349 | zif->rtadv.HomeAgentLifetime = strtoul(argv[idx_number]->arg, NULL, 10); | |
1350 | return CMD_SUCCESS; | |
7cee1bb1 | 1351 | } |
1352 | ||
1353 | DEFUN (no_ipv6_nd_homeagent_lifetime, | |
1354 | no_ipv6_nd_homeagent_lifetime_cmd, | |
34ccea1e | 1355 | "no ipv6 nd home-agent-lifetime [(0-65520)]", |
7cee1bb1 | 1356 | NO_STR |
1357 | "Interface IPv6 config commands\n" | |
1358 | "Neighbor discovery\n" | |
34ccea1e QY |
1359 | "Home Agent lifetime\n" |
1360 | "Home Agent lifetime in seconds (0 to track ra-lifetime)\n") | |
7cee1bb1 | 1361 | { |
d62a17ae | 1362 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1363 | struct zebra_if *zif = ifp->info; | |
7cee1bb1 | 1364 | |
d62a17ae | 1365 | zif->rtadv.HomeAgentLifetime = -1; |
7cee1bb1 | 1366 | |
d62a17ae | 1367 | return CMD_SUCCESS; |
7cee1bb1 | 1368 | } |
1369 | ||
718e3744 | 1370 | DEFUN (ipv6_nd_managed_config_flag, |
1371 | ipv6_nd_managed_config_flag_cmd, | |
1372 | "ipv6 nd managed-config-flag", | |
3e31cded | 1373 | "Interface IPv6 config commands\n" |
718e3744 | 1374 | "Neighbor discovery\n" |
1375 | "Managed address configuration flag\n") | |
1376 | { | |
d62a17ae | 1377 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1378 | struct zebra_if *zif = ifp->info; | |
718e3744 | 1379 | |
d62a17ae | 1380 | zif->rtadv.AdvManagedFlag = 1; |
718e3744 | 1381 | |
d62a17ae | 1382 | return CMD_SUCCESS; |
718e3744 | 1383 | } |
1384 | ||
1385 | DEFUN (no_ipv6_nd_managed_config_flag, | |
1386 | no_ipv6_nd_managed_config_flag_cmd, | |
1387 | "no ipv6 nd managed-config-flag", | |
1388 | NO_STR | |
3e31cded | 1389 | "Interface IPv6 config commands\n" |
718e3744 | 1390 | "Neighbor discovery\n" |
1391 | "Managed address configuration flag\n") | |
1392 | { | |
d62a17ae | 1393 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1394 | struct zebra_if *zif = ifp->info; | |
718e3744 | 1395 | |
d62a17ae | 1396 | zif->rtadv.AdvManagedFlag = 0; |
718e3744 | 1397 | |
d62a17ae | 1398 | return CMD_SUCCESS; |
718e3744 | 1399 | } |
1400 | ||
7cee1bb1 | 1401 | DEFUN (ipv6_nd_homeagent_config_flag, |
1402 | ipv6_nd_homeagent_config_flag_cmd, | |
1403 | "ipv6 nd home-agent-config-flag", | |
1404 | "Interface IPv6 config commands\n" | |
1405 | "Neighbor discovery\n" | |
1406 | "Home Agent configuration flag\n") | |
1407 | { | |
d62a17ae | 1408 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1409 | struct zebra_if *zif = ifp->info; | |
7cee1bb1 | 1410 | |
d62a17ae | 1411 | zif->rtadv.AdvHomeAgentFlag = 1; |
7cee1bb1 | 1412 | |
d62a17ae | 1413 | return CMD_SUCCESS; |
7cee1bb1 | 1414 | } |
1415 | ||
1416 | DEFUN (no_ipv6_nd_homeagent_config_flag, | |
1417 | no_ipv6_nd_homeagent_config_flag_cmd, | |
1418 | "no ipv6 nd home-agent-config-flag", | |
1419 | NO_STR | |
1420 | "Interface IPv6 config commands\n" | |
1421 | "Neighbor discovery\n" | |
1422 | "Home Agent configuration flag\n") | |
1423 | { | |
d62a17ae | 1424 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1425 | struct zebra_if *zif = ifp->info; | |
7cee1bb1 | 1426 | |
d62a17ae | 1427 | zif->rtadv.AdvHomeAgentFlag = 0; |
7cee1bb1 | 1428 | |
d62a17ae | 1429 | return CMD_SUCCESS; |
7cee1bb1 | 1430 | } |
1431 | ||
1432 | DEFUN (ipv6_nd_adv_interval_config_option, | |
1433 | ipv6_nd_adv_interval_config_option_cmd, | |
1434 | "ipv6 nd adv-interval-option", | |
1435 | "Interface IPv6 config commands\n" | |
1436 | "Neighbor discovery\n" | |
1437 | "Advertisement Interval Option\n") | |
1438 | { | |
d62a17ae | 1439 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1440 | struct zebra_if *zif = ifp->info; | |
7cee1bb1 | 1441 | |
d62a17ae | 1442 | zif->rtadv.AdvIntervalOption = 1; |
7cee1bb1 | 1443 | |
d62a17ae | 1444 | return CMD_SUCCESS; |
7cee1bb1 | 1445 | } |
1446 | ||
1447 | DEFUN (no_ipv6_nd_adv_interval_config_option, | |
1448 | no_ipv6_nd_adv_interval_config_option_cmd, | |
1449 | "no ipv6 nd adv-interval-option", | |
1450 | NO_STR | |
1451 | "Interface IPv6 config commands\n" | |
1452 | "Neighbor discovery\n" | |
1453 | "Advertisement Interval Option\n") | |
1454 | { | |
d62a17ae | 1455 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1456 | struct zebra_if *zif = ifp->info; | |
7cee1bb1 | 1457 | |
d62a17ae | 1458 | zif->rtadv.AdvIntervalOption = 0; |
7cee1bb1 | 1459 | |
d62a17ae | 1460 | return CMD_SUCCESS; |
7cee1bb1 | 1461 | } |
1462 | ||
718e3744 | 1463 | DEFUN (ipv6_nd_other_config_flag, |
1464 | ipv6_nd_other_config_flag_cmd, | |
1465 | "ipv6 nd other-config-flag", | |
3e31cded | 1466 | "Interface IPv6 config commands\n" |
718e3744 | 1467 | "Neighbor discovery\n" |
1468 | "Other statefull configuration flag\n") | |
1469 | { | |
d62a17ae | 1470 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1471 | struct zebra_if *zif = ifp->info; | |
718e3744 | 1472 | |
d62a17ae | 1473 | zif->rtadv.AdvOtherConfigFlag = 1; |
718e3744 | 1474 | |
d62a17ae | 1475 | return CMD_SUCCESS; |
718e3744 | 1476 | } |
1477 | ||
1478 | DEFUN (no_ipv6_nd_other_config_flag, | |
1479 | no_ipv6_nd_other_config_flag_cmd, | |
1480 | "no ipv6 nd other-config-flag", | |
1481 | NO_STR | |
3e31cded | 1482 | "Interface IPv6 config commands\n" |
718e3744 | 1483 | "Neighbor discovery\n" |
1484 | "Other statefull configuration flag\n") | |
1485 | { | |
d62a17ae | 1486 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1487 | struct zebra_if *zif = ifp->info; | |
718e3744 | 1488 | |
d62a17ae | 1489 | zif->rtadv.AdvOtherConfigFlag = 0; |
718e3744 | 1490 | |
d62a17ae | 1491 | return CMD_SUCCESS; |
718e3744 | 1492 | } |
1493 | ||
3e31cded | 1494 | DEFUN (ipv6_nd_prefix, |
1495 | ipv6_nd_prefix_cmd, | |
34ccea1e | 1496 | "ipv6 nd prefix X:X::X:X/M [<(0-4294967295)|infinite> <(0-4294967295)|infinite>] [<router-address|off-link [no-autoconfig]|no-autoconfig [off-link]>]", |
3e31cded | 1497 | "Interface IPv6 config commands\n" |
718e3744 | 1498 | "Neighbor discovery\n" |
1499 | "Prefix information\n" | |
1500 | "IPv6 prefix\n" | |
1501 | "Valid lifetime in seconds\n" | |
3e31cded | 1502 | "Infinite valid lifetime\n" |
718e3744 | 1503 | "Preferred lifetime in seconds\n" |
3e31cded | 1504 | "Infinite preferred lifetime\n" |
34ccea1e | 1505 | "Set Router Address flag\n" |
3e31cded | 1506 | "Do not use prefix for onlink determination\n" |
7cee1bb1 | 1507 | "Do not use prefix for autoconfiguration\n" |
34ccea1e QY |
1508 | "Do not use prefix for autoconfiguration\n" |
1509 | "Do not use prefix for onlink determination\n") | |
718e3744 | 1510 | { |
d62a17ae | 1511 | /* prelude */ |
1512 | char *prefix = argv[3]->arg; | |
9d303b37 DL |
1513 | int lifetimes = (argc > 4) && (argv[4]->type == RANGE_TKN |
1514 | || strmatch(argv[4]->text, "infinite")); | |
d62a17ae | 1515 | int routeropts = lifetimes ? argc > 6 : argc > 4; |
1516 | ||
1517 | int idx_routeropts = routeropts ? (lifetimes ? 6 : 4) : 0; | |
1518 | ||
1519 | char *lifetime = NULL, *preflifetime = NULL; | |
1520 | int routeraddr = 0, offlink = 0, noautoconf = 0; | |
1521 | if (lifetimes) { | |
1522 | lifetime = argv[4]->type == RANGE_TKN ? argv[4]->arg | |
1523 | : argv[4]->text; | |
1524 | preflifetime = argv[5]->type == RANGE_TKN ? argv[5]->arg | |
1525 | : argv[5]->text; | |
1526 | } | |
1527 | if (routeropts) { | |
1528 | routeraddr = | |
1529 | strmatch(argv[idx_routeropts]->text, "router-address"); | |
1530 | if (!routeraddr) { | |
1531 | offlink = (argc > idx_routeropts + 1 | |
1532 | || strmatch(argv[idx_routeropts]->text, | |
1533 | "off-link")); | |
1534 | noautoconf = (argc > idx_routeropts + 1 | |
1535 | || strmatch(argv[idx_routeropts]->text, | |
1536 | "no-autoconfig")); | |
1537 | } | |
1538 | } | |
1539 | ||
1540 | /* business */ | |
1541 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1542 | struct zebra_if *zebra_if = ifp->info; | |
1543 | int ret; | |
1544 | struct rtadv_prefix rp; | |
1545 | ||
1546 | ret = str2prefix_ipv6(prefix, &rp.prefix); | |
1547 | if (!ret) { | |
1548 | vty_out(vty, "Malformed IPv6 prefix\n"); | |
1549 | return CMD_WARNING_CONFIG_FAILED; | |
1550 | } | |
1551 | apply_mask_ipv6(&rp.prefix); /* RFC4861 4.6.2 */ | |
1552 | rp.AdvOnLinkFlag = !offlink; | |
1553 | rp.AdvAutonomousFlag = !noautoconf; | |
1554 | rp.AdvRouterAddressFlag = routeraddr; | |
1555 | rp.AdvValidLifetime = RTADV_VALID_LIFETIME; | |
1556 | rp.AdvPreferredLifetime = RTADV_PREFERRED_LIFETIME; | |
1557 | ||
1558 | if (lifetimes) { | |
1559 | rp.AdvValidLifetime = strmatch(lifetime, "infinite") | |
1560 | ? UINT32_MAX | |
1561 | : strtoll(lifetime, NULL, 10); | |
1562 | rp.AdvPreferredLifetime = | |
1563 | strmatch(preflifetime, "infinite") | |
1564 | ? UINT32_MAX | |
1565 | : strtoll(preflifetime, NULL, 10); | |
1566 | if (rp.AdvPreferredLifetime > rp.AdvValidLifetime) { | |
1567 | vty_out(vty, "Invalid preferred lifetime\n"); | |
1568 | return CMD_WARNING_CONFIG_FAILED; | |
1569 | } | |
1570 | } | |
1571 | ||
1572 | rtadv_prefix_set(zebra_if, &rp); | |
1573 | ||
1574 | return CMD_SUCCESS; | |
718e3744 | 1575 | } |
1576 | ||
3e31cded | 1577 | DEFUN (no_ipv6_nd_prefix, |
1578 | no_ipv6_nd_prefix_cmd, | |
34ccea1e QY |
1579 | "no ipv6 nd prefix X:X::X:X/M [<(0-4294967295)|infinite> <(0-4294967295)|infinite>] [<router-address|off-link [no-autoconfig]|no-autoconfig [off-link]>]", |
1580 | NO_STR | |
3e31cded | 1581 | "Interface IPv6 config commands\n" |
718e3744 | 1582 | "Neighbor discovery\n" |
1583 | "Prefix information\n" | |
34ccea1e QY |
1584 | "IPv6 prefix\n" |
1585 | "Valid lifetime in seconds\n" | |
1586 | "Infinite valid lifetime\n" | |
1587 | "Preferred lifetime in seconds\n" | |
1588 | "Infinite preferred lifetime\n" | |
1589 | "Set Router Address flag\n" | |
1590 | "Do not use prefix for onlink determination\n" | |
1591 | "Do not use prefix for autoconfiguration\n" | |
1592 | "Do not use prefix for autoconfiguration\n" | |
1593 | "Do not use prefix for onlink determination\n") | |
718e3744 | 1594 | { |
d62a17ae | 1595 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1596 | struct zebra_if *zebra_if = ifp->info; | |
1597 | int ret; | |
1598 | struct rtadv_prefix rp; | |
1599 | char *prefix = argv[4]->arg; | |
1600 | ||
1601 | ret = str2prefix_ipv6(prefix, &rp.prefix); | |
1602 | if (!ret) { | |
1603 | vty_out(vty, "Malformed IPv6 prefix\n"); | |
1604 | return CMD_WARNING_CONFIG_FAILED; | |
1605 | } | |
1606 | apply_mask_ipv6(&rp.prefix); /* RFC4861 4.6.2 */ | |
1607 | ||
1608 | ret = rtadv_prefix_reset(zebra_if, &rp); | |
1609 | if (!ret) { | |
1610 | vty_out(vty, "Non-existant IPv6 prefix\n"); | |
1611 | return CMD_WARNING_CONFIG_FAILED; | |
1612 | } | |
1613 | ||
1614 | return CMD_SUCCESS; | |
718e3744 | 1615 | } |
b60668d0 CC |
1616 | |
1617 | DEFUN (ipv6_nd_router_preference, | |
1618 | ipv6_nd_router_preference_cmd, | |
6147e2c6 | 1619 | "ipv6 nd router-preference <high|medium|low>", |
b60668d0 CC |
1620 | "Interface IPv6 config commands\n" |
1621 | "Neighbor discovery\n" | |
1622 | "Default router preference\n" | |
1623 | "High default router preference\n" | |
58f1b7cc DS |
1624 | "Medium default router preference (default)\n" |
1625 | "Low default router preference\n") | |
b60668d0 | 1626 | { |
d62a17ae | 1627 | int idx_high_medium_low = 3; |
1628 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1629 | struct zebra_if *zif = ifp->info; | |
1630 | int i = 0; | |
1631 | ||
1632 | while (0 != rtadv_pref_strs[i]) { | |
1633 | if (strncmp(argv[idx_high_medium_low]->arg, rtadv_pref_strs[i], | |
1634 | 1) | |
1635 | == 0) { | |
1636 | zif->rtadv.DefaultPreference = i; | |
1637 | return CMD_SUCCESS; | |
1638 | } | |
1639 | i++; | |
b60668d0 | 1640 | } |
b60668d0 | 1641 | |
d62a17ae | 1642 | return CMD_ERR_NO_MATCH; |
b60668d0 CC |
1643 | } |
1644 | ||
1645 | DEFUN (no_ipv6_nd_router_preference, | |
1646 | no_ipv6_nd_router_preference_cmd, | |
34ccea1e | 1647 | "no ipv6 nd router-preference [<high|medium|low>]", |
b60668d0 CC |
1648 | NO_STR |
1649 | "Interface IPv6 config commands\n" | |
1650 | "Neighbor discovery\n" | |
34ccea1e QY |
1651 | "Default router preference\n" |
1652 | "High default router preference\n" | |
1653 | "Medium default router preference (default)\n" | |
1654 | "Low default router preference\n") | |
b60668d0 | 1655 | { |
d62a17ae | 1656 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1657 | struct zebra_if *zif = ifp->info; | |
b60668d0 | 1658 | |
d62a17ae | 1659 | zif->rtadv.DefaultPreference = |
1660 | RTADV_PREF_MEDIUM; /* Default per RFC4191. */ | |
b60668d0 | 1661 | |
d62a17ae | 1662 | return CMD_SUCCESS; |
b60668d0 CC |
1663 | } |
1664 | ||
6ae93c05 DO |
1665 | DEFUN (ipv6_nd_mtu, |
1666 | ipv6_nd_mtu_cmd, | |
6147e2c6 | 1667 | "ipv6 nd mtu (1-65535)", |
6ae93c05 DO |
1668 | "Interface IPv6 config commands\n" |
1669 | "Neighbor discovery\n" | |
1670 | "Advertised MTU\n" | |
1671 | "MTU in bytes\n") | |
1672 | { | |
d62a17ae | 1673 | int idx_number = 3; |
1674 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1675 | struct zebra_if *zif = ifp->info; | |
1676 | zif->rtadv.AdvLinkMTU = strtoul(argv[idx_number]->arg, NULL, 10); | |
1677 | return CMD_SUCCESS; | |
6ae93c05 DO |
1678 | } |
1679 | ||
1680 | DEFUN (no_ipv6_nd_mtu, | |
1681 | no_ipv6_nd_mtu_cmd, | |
34ccea1e | 1682 | "no ipv6 nd mtu [(1-65535)]", |
6ae93c05 DO |
1683 | NO_STR |
1684 | "Interface IPv6 config commands\n" | |
1685 | "Neighbor discovery\n" | |
34ccea1e QY |
1686 | "Advertised MTU\n" |
1687 | "MTU in bytes\n") | |
6ae93c05 | 1688 | { |
d62a17ae | 1689 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1690 | struct zebra_if *zif = ifp->info; | |
1691 | zif->rtadv.AdvLinkMTU = 0; | |
1692 | return CMD_SUCCESS; | |
6ae93c05 DO |
1693 | } |
1694 | ||
3eb4fbb0 LS |
1695 | static struct rtadv_rdnss *rtadv_rdnss_new(void) |
1696 | { | |
1697 | return XCALLOC(MTYPE_RTADV_RDNSS, sizeof(struct rtadv_rdnss)); | |
1698 | } | |
1699 | ||
1700 | static void rtadv_rdnss_free(struct rtadv_rdnss *rdnss) | |
1701 | { | |
1702 | XFREE(MTYPE_RTADV_RDNSS, rdnss); | |
1703 | } | |
1704 | ||
1705 | static struct rtadv_rdnss *rtadv_rdnss_lookup(struct list *list, | |
1706 | struct rtadv_rdnss *rdnss) | |
1707 | { | |
1708 | struct listnode *node; | |
1709 | struct rtadv_rdnss *p; | |
1710 | ||
1711 | for (ALL_LIST_ELEMENTS_RO(list, node, p)) | |
1712 | if (IPV6_ADDR_SAME(&p->addr, &rdnss->addr)) | |
1713 | return p; | |
1714 | return NULL; | |
1715 | } | |
1716 | ||
1717 | static struct rtadv_rdnss *rtadv_rdnss_get(struct list *list, | |
1718 | struct rtadv_rdnss *rdnss) | |
1719 | { | |
1720 | struct rtadv_rdnss *p; | |
1721 | ||
1722 | p = rtadv_rdnss_lookup(list, rdnss); | |
1723 | if (p) | |
1724 | return p; | |
1725 | ||
1726 | p = rtadv_rdnss_new(); | |
1727 | memcpy(p, rdnss, sizeof(struct rtadv_rdnss)); | |
1728 | listnode_add(list, p); | |
1729 | ||
1730 | return p; | |
1731 | } | |
1732 | ||
1733 | static void rtadv_rdnss_set(struct zebra_if *zif, struct rtadv_rdnss *rdnss) | |
1734 | { | |
1735 | struct rtadv_rdnss *p; | |
1736 | ||
1737 | p = rtadv_rdnss_get(zif->rtadv.AdvRDNSSList, rdnss); | |
1738 | p->lifetime = rdnss->lifetime; | |
1739 | p->lifetime_set = rdnss->lifetime_set; | |
1740 | } | |
1741 | ||
1742 | static int rtadv_rdnss_reset(struct zebra_if *zif, struct rtadv_rdnss *rdnss) | |
1743 | { | |
1744 | struct rtadv_rdnss *p; | |
1745 | ||
1746 | p = rtadv_rdnss_lookup(zif->rtadv.AdvRDNSSList, rdnss); | |
1747 | if (p) { | |
1748 | listnode_delete(zif->rtadv.AdvRDNSSList, p); | |
1749 | rtadv_rdnss_free(p); | |
1750 | return 1; | |
1751 | } | |
1752 | ||
1753 | return 0; | |
1754 | } | |
1755 | ||
1756 | static struct rtadv_dnssl *rtadv_dnssl_new(void) | |
1757 | { | |
1758 | return XCALLOC(MTYPE_RTADV_DNSSL, sizeof(struct rtadv_dnssl)); | |
1759 | } | |
1760 | ||
1761 | static void rtadv_dnssl_free(struct rtadv_dnssl *dnssl) | |
1762 | { | |
1763 | XFREE(MTYPE_RTADV_DNSSL, dnssl); | |
1764 | } | |
1765 | ||
1766 | static struct rtadv_dnssl *rtadv_dnssl_lookup(struct list *list, | |
1767 | struct rtadv_dnssl *dnssl) | |
1768 | { | |
1769 | struct listnode *node; | |
1770 | struct rtadv_dnssl *p; | |
1771 | ||
1772 | for (ALL_LIST_ELEMENTS_RO(list, node, p)) | |
1773 | if (!strcasecmp(p->name, dnssl->name)) | |
1774 | return p; | |
1775 | return NULL; | |
1776 | } | |
1777 | ||
1778 | static struct rtadv_dnssl *rtadv_dnssl_get(struct list *list, | |
1779 | struct rtadv_dnssl *dnssl) | |
1780 | { | |
1781 | struct rtadv_dnssl *p; | |
1782 | ||
1783 | p = rtadv_dnssl_lookup(list, dnssl); | |
1784 | if (p) | |
1785 | return p; | |
1786 | ||
1787 | p = rtadv_dnssl_new(); | |
1788 | memcpy(p, dnssl, sizeof(struct rtadv_dnssl)); | |
1789 | listnode_add(list, p); | |
1790 | ||
1791 | return p; | |
1792 | } | |
1793 | ||
1794 | static void rtadv_dnssl_set(struct zebra_if *zif, struct rtadv_dnssl *dnssl) | |
1795 | { | |
1796 | struct rtadv_dnssl *p; | |
1797 | ||
1798 | p = rtadv_dnssl_get(zif->rtadv.AdvDNSSLList, dnssl); | |
1799 | memcpy(p, dnssl, sizeof(struct rtadv_dnssl)); | |
1800 | } | |
1801 | ||
1802 | static int rtadv_dnssl_reset(struct zebra_if *zif, struct rtadv_dnssl *dnssl) | |
1803 | { | |
1804 | struct rtadv_dnssl *p; | |
1805 | ||
1806 | p = rtadv_dnssl_lookup(zif->rtadv.AdvDNSSLList, dnssl); | |
1807 | if (p) { | |
1808 | listnode_delete(zif->rtadv.AdvDNSSLList, p); | |
1809 | rtadv_dnssl_free(p); | |
1810 | return 1; | |
1811 | } | |
1812 | ||
1813 | return 0; | |
1814 | } | |
1815 | ||
1816 | /* | |
1817 | * Convert dotted domain name (with or without trailing root zone dot) to | |
1818 | * sequence of length-prefixed labels, as described in [RFC1035 3.1]. Write up | |
1819 | * to strlen(in) + 2 octets to out. | |
1820 | * | |
1821 | * Returns the number of octets written to out or -1 if in does not constitute | |
1822 | * a valid domain name. | |
1823 | */ | |
1824 | static int rtadv_dnssl_encode(uint8_t *out, const char *in) | |
1825 | { | |
1826 | const char *label_start, *label_end; | |
1827 | size_t outp; | |
1828 | ||
1829 | outp = 0; | |
1830 | label_start = in; | |
1831 | ||
1832 | while (*label_start) { | |
1833 | size_t label_len; | |
1834 | ||
1835 | label_end = strchr(label_start, '.'); | |
1836 | if (label_end == NULL) | |
1837 | label_end = label_start + strlen(label_start); | |
1838 | ||
1839 | label_len = label_end - label_start; | |
1840 | if (label_len >= 64) | |
1841 | return -1; /* labels must be 63 octets or less */ | |
1842 | ||
1843 | out[outp++] = (uint8_t)label_len; | |
1844 | memcpy(out + outp, label_start, label_len); | |
1845 | outp += label_len; | |
1846 | label_start += label_len; | |
1847 | if (*label_start == '.') | |
1848 | label_start++; | |
1849 | } | |
1850 | ||
1851 | out[outp++] = '\0'; | |
1852 | return outp; | |
1853 | } | |
1854 | ||
1855 | DEFUN(ipv6_nd_rdnss, | |
1856 | ipv6_nd_rdnss_cmd, | |
1857 | "ipv6 nd rdnss X:X::X:X [<(0-4294967295)|infinite>]", | |
1858 | "Interface IPv6 config commands\n" | |
1859 | "Neighbor discovery\n" | |
1860 | "Recursive DNS server information\n" | |
1861 | "IPv6 address\n" | |
1862 | "Valid lifetime in seconds\n" | |
1863 | "Infinite valid lifetime\n") | |
1864 | { | |
1865 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1866 | struct zebra_if *zif = ifp->info; | |
844e9180 | 1867 | struct rtadv_rdnss rdnss = {}; |
3eb4fbb0 LS |
1868 | |
1869 | if (inet_pton(AF_INET6, argv[3]->arg, &rdnss.addr) != 1) { | |
1870 | vty_out(vty, "Malformed IPv6 address\n"); | |
1871 | return CMD_WARNING_CONFIG_FAILED; | |
1872 | } | |
1873 | if (argc > 4) { | |
1874 | char *lifetime = argv[4]->type == RANGE_TKN ? argv[4]->arg | |
1875 | : argv[4]->text; | |
1876 | rdnss.lifetime = strmatch(lifetime, "infinite") | |
1877 | ? UINT32_MAX | |
1878 | : strtoll(lifetime, NULL, 10); | |
1879 | rdnss.lifetime_set = 1; | |
1880 | } | |
1881 | ||
1882 | rtadv_rdnss_set(zif, &rdnss); | |
1883 | ||
1884 | return CMD_SUCCESS; | |
1885 | } | |
1886 | ||
1887 | DEFUN(no_ipv6_nd_rdnss, | |
1888 | no_ipv6_nd_rdnss_cmd, | |
1889 | "no ipv6 nd rdnss X:X::X:X [<(0-4294967295)|infinite>]", | |
1890 | NO_STR | |
1891 | "Interface IPv6 config commands\n" | |
1892 | "Neighbor discovery\n" | |
1893 | "Recursive DNS server information\n" | |
1894 | "IPv6 address\n" | |
1895 | "Valid lifetime in seconds\n" | |
1896 | "Infinite valid lifetime\n") | |
1897 | { | |
1898 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1899 | struct zebra_if *zif = ifp->info; | |
844e9180 | 1900 | struct rtadv_rdnss rdnss = {}; |
3eb4fbb0 LS |
1901 | |
1902 | if (inet_pton(AF_INET6, argv[4]->arg, &rdnss.addr) != 1) { | |
1903 | vty_out(vty, "Malformed IPv6 address\n"); | |
1904 | return CMD_WARNING_CONFIG_FAILED; | |
1905 | } | |
1906 | if (rtadv_rdnss_reset(zif, &rdnss) != 1) { | |
1907 | vty_out(vty, "Non-existant RDNSS address\n"); | |
1908 | return CMD_WARNING_CONFIG_FAILED; | |
1909 | } | |
1910 | ||
1911 | return CMD_SUCCESS; | |
1912 | } | |
1913 | ||
1914 | DEFUN(ipv6_nd_dnssl, | |
1915 | ipv6_nd_dnssl_cmd, | |
1916 | "ipv6 nd dnssl SUFFIX [<(0-4294967295)|infinite>]", | |
1917 | "Interface IPv6 config commands\n" | |
1918 | "Neighbor discovery\n" | |
1919 | "DNS search list information\n" | |
1920 | "Domain name suffix\n" | |
1921 | "Valid lifetime in seconds\n" | |
1922 | "Infinite valid lifetime\n") | |
1923 | { | |
1924 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1925 | struct zebra_if *zif = ifp->info; | |
844e9180 | 1926 | struct rtadv_dnssl dnssl = {}; |
3eb4fbb0 LS |
1927 | size_t len; |
1928 | int ret; | |
1929 | ||
1930 | len = strlcpy(dnssl.name, argv[3]->arg, sizeof(dnssl.name)); | |
1931 | if (len == 0 || len >= sizeof(dnssl.name)) { | |
1932 | vty_out(vty, "Malformed DNS search domain\n"); | |
1933 | return CMD_WARNING_CONFIG_FAILED; | |
1934 | } | |
1935 | if (dnssl.name[len - 1] == '.') { | |
1936 | /* | |
1937 | * Allow, but don't require, a trailing dot signifying the root | |
1938 | * zone. Canonicalize by cutting it off if present. | |
1939 | */ | |
1940 | dnssl.name[len - 1] = '\0'; | |
1941 | len--; | |
1942 | } | |
1943 | if (argc > 4) { | |
1944 | char *lifetime = argv[4]->type == RANGE_TKN ? argv[4]->arg | |
1945 | : argv[4]->text; | |
1946 | dnssl.lifetime = strmatch(lifetime, "infinite") | |
1947 | ? UINT32_MAX | |
1948 | : strtoll(lifetime, NULL, 10); | |
1949 | dnssl.lifetime_set = 1; | |
1950 | } | |
1951 | ||
1952 | ret = rtadv_dnssl_encode(dnssl.encoded_name, dnssl.name); | |
1953 | if (ret < 0) { | |
1954 | vty_out(vty, "Malformed DNS search domain\n"); | |
1955 | return CMD_WARNING_CONFIG_FAILED; | |
1956 | } | |
1957 | dnssl.encoded_len = ret; | |
1958 | rtadv_dnssl_set(zif, &dnssl); | |
1959 | ||
1960 | return CMD_SUCCESS; | |
1961 | } | |
1962 | ||
1963 | DEFUN(no_ipv6_nd_dnssl, | |
1964 | no_ipv6_nd_dnssl_cmd, | |
1965 | "no ipv6 nd dnssl SUFFIX [<(0-4294967295)|infinite>]", | |
1966 | NO_STR | |
1967 | "Interface IPv6 config commands\n" | |
1968 | "Neighbor discovery\n" | |
1969 | "DNS search list information\n" | |
1970 | "Domain name suffix\n" | |
1971 | "Valid lifetime in seconds\n" | |
1972 | "Infinite valid lifetime\n") | |
1973 | { | |
1974 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1975 | struct zebra_if *zif = ifp->info; | |
844e9180 | 1976 | struct rtadv_dnssl dnssl = {}; |
3eb4fbb0 LS |
1977 | size_t len; |
1978 | ||
1979 | len = strlcpy(dnssl.name, argv[4]->arg, sizeof(dnssl.name)); | |
1980 | if (len == 0 || len >= sizeof(dnssl.name)) { | |
1981 | vty_out(vty, "Malformed DNS search domain\n"); | |
1982 | return CMD_WARNING_CONFIG_FAILED; | |
1983 | } | |
1984 | if (dnssl.name[len - 1] == '.') { | |
1985 | dnssl.name[len - 1] = '\0'; | |
1986 | len--; | |
1987 | } | |
1988 | if (rtadv_dnssl_reset(zif, &dnssl) != 1) { | |
1989 | vty_out(vty, "Non-existant DNS search domain\n"); | |
1990 | return CMD_WARNING_CONFIG_FAILED; | |
1991 | } | |
1992 | ||
1993 | return CMD_SUCCESS; | |
1994 | } | |
1995 | ||
1996 | ||
2eb27eec DL |
1997 | /* Dump interface ND information to vty. */ |
1998 | static int nd_dump_vty(struct vty *vty, struct interface *ifp) | |
1999 | { | |
2000 | struct zebra_if *zif; | |
2001 | struct rtadvconf *rtadv; | |
2002 | int interval; | |
2003 | ||
2004 | zif = (struct zebra_if *)ifp->info; | |
2005 | rtadv = &zif->rtadv; | |
2006 | ||
2007 | if (rtadv->AdvSendAdvertisements) { | |
2008 | vty_out(vty, | |
2009 | " ND advertised reachable time is %d milliseconds\n", | |
2010 | rtadv->AdvReachableTime); | |
2011 | vty_out(vty, | |
2012 | " ND advertised retransmit interval is %d milliseconds\n", | |
2013 | rtadv->AdvRetransTimer); | |
2014 | vty_out(vty, " ND router advertisements sent: %d rcvd: %d\n", | |
2015 | zif->ra_sent, zif->ra_rcvd); | |
2016 | interval = rtadv->MaxRtrAdvInterval; | |
2017 | if (interval % 1000) | |
2018 | vty_out(vty, | |
2019 | " ND router advertisements are sent every " | |
2020 | "%d milliseconds\n", | |
2021 | interval); | |
2022 | else | |
2023 | vty_out(vty, | |
2024 | " ND router advertisements are sent every " | |
2025 | "%d seconds\n", | |
2026 | interval / 1000); | |
adee8f21 DS |
2027 | if (!rtadv->UseFastRexmit) |
2028 | vty_out(vty, | |
2029 | " ND router advertisements do not use fast retransmit\n"); | |
2030 | ||
2eb27eec DL |
2031 | if (rtadv->AdvDefaultLifetime != -1) |
2032 | vty_out(vty, | |
2033 | " ND router advertisements live for %d seconds\n", | |
2034 | rtadv->AdvDefaultLifetime); | |
2035 | else | |
2036 | vty_out(vty, | |
2037 | " ND router advertisements lifetime tracks ra-interval\n"); | |
2038 | vty_out(vty, | |
2039 | " ND router advertisement default router preference is " | |
2040 | "%s\n", | |
2041 | rtadv_pref_strs[rtadv->DefaultPreference]); | |
2042 | if (rtadv->AdvManagedFlag) | |
2043 | vty_out(vty, | |
2044 | " Hosts use DHCP to obtain routable addresses.\n"); | |
2045 | else | |
2046 | vty_out(vty, | |
2047 | " Hosts use stateless autoconfig for addresses.\n"); | |
2048 | if (rtadv->AdvHomeAgentFlag) { | |
2049 | vty_out(vty, | |
2050 | " ND router advertisements with Home Agent flag bit set.\n"); | |
2051 | if (rtadv->HomeAgentLifetime != -1) | |
2052 | vty_out(vty, | |
2053 | " Home Agent lifetime is %u seconds\n", | |
2054 | rtadv->HomeAgentLifetime); | |
2055 | else | |
2056 | vty_out(vty, | |
2057 | " Home Agent lifetime tracks ra-lifetime\n"); | |
2058 | vty_out(vty, " Home Agent preference is %u\n", | |
2059 | rtadv->HomeAgentPreference); | |
2060 | } | |
2061 | if (rtadv->AdvIntervalOption) | |
2062 | vty_out(vty, | |
2063 | " ND router advertisements with Adv. Interval option.\n"); | |
2064 | } | |
2065 | return 0; | |
2066 | } | |
2067 | ||
6ae93c05 | 2068 | |
718e3744 | 2069 | /* Write configuration about router advertisement. */ |
2eb27eec | 2070 | static int rtadv_config_write(struct vty *vty, struct interface *ifp) |
718e3744 | 2071 | { |
d62a17ae | 2072 | struct zebra_if *zif; |
2073 | struct listnode *node; | |
2074 | struct rtadv_prefix *rprefix; | |
3eb4fbb0 LS |
2075 | struct rtadv_rdnss *rdnss; |
2076 | struct rtadv_dnssl *dnssl; | |
d62a17ae | 2077 | char buf[PREFIX_STRLEN]; |
2078 | int interval; | |
2079 | ||
2080 | zif = ifp->info; | |
2081 | ||
2082 | if (!(if_is_loopback(ifp) | |
2083 | || CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK))) { | |
3ea48364 DS |
2084 | if (zif->rtadv.AdvSendAdvertisements |
2085 | && CHECK_FLAG(zif->rtadv.ra_configured, VTY_RA_CONFIGURED)) | |
d62a17ae | 2086 | vty_out(vty, " no ipv6 nd suppress-ra\n"); |
2087 | } | |
2088 | ||
2089 | interval = zif->rtadv.MaxRtrAdvInterval; | |
3ea48364 DS |
2090 | if (CHECK_FLAG(zif->rtadv.ra_configured, VTY_RA_INTERVAL_CONFIGURED)) { |
2091 | if (interval % 1000) | |
2092 | vty_out(vty, " ipv6 nd ra-interval msec %d\n", | |
2093 | interval); | |
2094 | else if (interval != RTADV_MAX_RTR_ADV_INTERVAL) | |
2095 | vty_out(vty, " ipv6 nd ra-interval %d\n", | |
2096 | interval / 1000); | |
2097 | } | |
d62a17ae | 2098 | |
2099 | if (zif->rtadv.AdvIntervalOption) | |
2100 | vty_out(vty, " ipv6 nd adv-interval-option\n"); | |
2101 | ||
adee8f21 DS |
2102 | if (!zif->rtadv.UseFastRexmit) |
2103 | vty_out(vty, " no ipv6 nd ra-fast-retrans\n"); | |
2104 | ||
d62a17ae | 2105 | if (zif->rtadv.AdvDefaultLifetime != -1) |
2106 | vty_out(vty, " ipv6 nd ra-lifetime %d\n", | |
2107 | zif->rtadv.AdvDefaultLifetime); | |
2108 | ||
2109 | if (zif->rtadv.HomeAgentPreference) | |
2110 | vty_out(vty, " ipv6 nd home-agent-preference %u\n", | |
2111 | zif->rtadv.HomeAgentPreference); | |
2112 | ||
2113 | if (zif->rtadv.HomeAgentLifetime != -1) | |
2114 | vty_out(vty, " ipv6 nd home-agent-lifetime %u\n", | |
2115 | zif->rtadv.HomeAgentLifetime); | |
2116 | ||
2117 | if (zif->rtadv.AdvHomeAgentFlag) | |
2118 | vty_out(vty, " ipv6 nd home-agent-config-flag\n"); | |
2119 | ||
2120 | if (zif->rtadv.AdvReachableTime) | |
2121 | vty_out(vty, " ipv6 nd reachable-time %d\n", | |
2122 | zif->rtadv.AdvReachableTime); | |
2123 | ||
2124 | if (zif->rtadv.AdvManagedFlag) | |
2125 | vty_out(vty, " ipv6 nd managed-config-flag\n"); | |
2126 | ||
2127 | if (zif->rtadv.AdvOtherConfigFlag) | |
2128 | vty_out(vty, " ipv6 nd other-config-flag\n"); | |
2129 | ||
2130 | if (zif->rtadv.DefaultPreference != RTADV_PREF_MEDIUM) | |
2131 | vty_out(vty, " ipv6 nd router-preference %s\n", | |
2132 | rtadv_pref_strs[zif->rtadv.DefaultPreference]); | |
2133 | ||
2134 | if (zif->rtadv.AdvLinkMTU) | |
2135 | vty_out(vty, " ipv6 nd mtu %d\n", zif->rtadv.AdvLinkMTU); | |
2136 | ||
2137 | for (ALL_LIST_ELEMENTS_RO(zif->rtadv.AdvPrefixList, node, rprefix)) { | |
2138 | vty_out(vty, " ipv6 nd prefix %s", | |
2139 | prefix2str(&rprefix->prefix, buf, sizeof(buf))); | |
2140 | if ((rprefix->AdvValidLifetime != RTADV_VALID_LIFETIME) | |
2141 | || (rprefix->AdvPreferredLifetime | |
2142 | != RTADV_PREFERRED_LIFETIME)) { | |
2143 | if (rprefix->AdvValidLifetime == UINT32_MAX) | |
2144 | vty_out(vty, " infinite"); | |
2145 | else | |
2146 | vty_out(vty, " %u", rprefix->AdvValidLifetime); | |
2147 | if (rprefix->AdvPreferredLifetime == UINT32_MAX) | |
2148 | vty_out(vty, " infinite"); | |
2149 | else | |
2150 | vty_out(vty, " %u", | |
2151 | rprefix->AdvPreferredLifetime); | |
2152 | } | |
2153 | if (!rprefix->AdvOnLinkFlag) | |
2154 | vty_out(vty, " off-link"); | |
2155 | if (!rprefix->AdvAutonomousFlag) | |
2156 | vty_out(vty, " no-autoconfig"); | |
2157 | if (rprefix->AdvRouterAddressFlag) | |
2158 | vty_out(vty, " router-address"); | |
2159 | vty_out(vty, "\n"); | |
3e31cded | 2160 | } |
3eb4fbb0 LS |
2161 | for (ALL_LIST_ELEMENTS_RO(zif->rtadv.AdvRDNSSList, node, rdnss)) { |
2162 | char buf[INET6_ADDRSTRLEN]; | |
2163 | ||
2164 | vty_out(vty, " ipv6 nd rdnss %s", | |
2165 | inet_ntop(AF_INET6, &rdnss->addr, buf, sizeof(buf))); | |
2166 | if (rdnss->lifetime_set) { | |
2167 | if (rdnss->lifetime == UINT32_MAX) | |
2168 | vty_out(vty, " infinite"); | |
2169 | else | |
2170 | vty_out(vty, " %u", rdnss->lifetime); | |
2171 | } | |
2172 | vty_out(vty, "\n"); | |
2173 | } | |
2174 | for (ALL_LIST_ELEMENTS_RO(zif->rtadv.AdvDNSSLList, node, dnssl)) { | |
2175 | vty_out(vty, " ipv6 nd dnssl %s", dnssl->name); | |
2176 | if (dnssl->lifetime_set) { | |
2177 | if (dnssl->lifetime == UINT32_MAX) | |
2178 | vty_out(vty, " infinite"); | |
2179 | else | |
2180 | vty_out(vty, " %u", dnssl->lifetime); | |
2181 | } | |
2182 | vty_out(vty, "\n"); | |
2183 | } | |
2eb27eec | 2184 | return 0; |
718e3744 | 2185 | } |
2186 | ||
718e3744 | 2187 | |
df9c8c57 | 2188 | static void rtadv_event(struct zebra_vrf *zvrf, enum rtadv_event event, int val) |
718e3744 | 2189 | { |
df9c8c57 | 2190 | struct rtadv *rtadv = &zvrf->rtadv; |
d62a17ae | 2191 | |
2192 | switch (event) { | |
2193 | case RTADV_START: | |
df9c8c57 | 2194 | thread_add_read(zrouter.master, rtadv_read, zvrf, val, |
d62a17ae | 2195 | &rtadv->ra_read); |
df9c8c57 | 2196 | thread_add_event(zrouter.master, rtadv_timer, zvrf, 0, |
d62a17ae | 2197 | &rtadv->ra_timer); |
2198 | break; | |
2199 | case RTADV_STOP: | |
311c15ee DS |
2200 | THREAD_OFF(rtadv->ra_timer); |
2201 | THREAD_OFF(rtadv->ra_read); | |
d62a17ae | 2202 | break; |
2203 | case RTADV_TIMER: | |
df9c8c57 | 2204 | thread_add_timer(zrouter.master, rtadv_timer, zvrf, val, |
d62a17ae | 2205 | &rtadv->ra_timer); |
2206 | break; | |
2207 | case RTADV_TIMER_MSEC: | |
df9c8c57 | 2208 | thread_add_timer_msec(zrouter.master, rtadv_timer, zvrf, val, |
d62a17ae | 2209 | &rtadv->ra_timer); |
2210 | break; | |
2211 | case RTADV_READ: | |
df9c8c57 | 2212 | thread_add_read(zrouter.master, rtadv_read, zvrf, val, |
d62a17ae | 2213 | &rtadv->ra_read); |
2214 | break; | |
2215 | default: | |
2216 | break; | |
718e3744 | 2217 | } |
d62a17ae | 2218 | return; |
718e3744 | 2219 | } |
2220 | ||
df9c8c57 | 2221 | void rtadv_init(struct zebra_vrf *zvrf) |
718e3744 | 2222 | { |
9245fe61 PG |
2223 | if (vrf_is_backend_netns()) { |
2224 | zvrf->rtadv.sock = rtadv_make_socket(zvrf->zns->ns_id); | |
2225 | zrouter.rtadv_sock = -1; | |
311c15ee | 2226 | } else { |
9245fe61 | 2227 | zvrf->rtadv.sock = -1; |
311c15ee DS |
2228 | if (zrouter.rtadv_sock < 0) |
2229 | zrouter.rtadv_sock = | |
2230 | rtadv_make_socket(zvrf->zns->ns_id); | |
9245fe61 | 2231 | } |
cd80d74f | 2232 | } |
718e3744 | 2233 | |
df9c8c57 | 2234 | void rtadv_terminate(struct zebra_vrf *zvrf) |
cd80d74f | 2235 | { |
df9c8c57 PG |
2236 | rtadv_event(zvrf, RTADV_STOP, 0); |
2237 | if (zvrf->rtadv.sock >= 0) { | |
2238 | close(zvrf->rtadv.sock); | |
2239 | zvrf->rtadv.sock = -1; | |
9245fe61 PG |
2240 | } else if (zrouter.rtadv_sock >= 0) { |
2241 | close(zrouter.rtadv_sock); | |
2242 | zrouter.rtadv_sock = -1; | |
d62a17ae | 2243 | } |
df9c8c57 PG |
2244 | zvrf->rtadv.adv_if_count = 0; |
2245 | zvrf->rtadv.adv_msec_if_count = 0; | |
cd80d74f | 2246 | } |
718e3744 | 2247 | |
d62a17ae | 2248 | void rtadv_cmd_init(void) |
cd80d74f | 2249 | { |
2eb27eec DL |
2250 | hook_register(zebra_if_extra_info, nd_dump_vty); |
2251 | hook_register(zebra_if_config_wr, rtadv_config_write); | |
2252 | ||
adee8f21 DS |
2253 | install_element(INTERFACE_NODE, &ipv6_nd_ra_fast_retrans_cmd); |
2254 | install_element(INTERFACE_NODE, &no_ipv6_nd_ra_fast_retrans_cmd); | |
d62a17ae | 2255 | install_element(INTERFACE_NODE, &ipv6_nd_suppress_ra_cmd); |
2256 | install_element(INTERFACE_NODE, &no_ipv6_nd_suppress_ra_cmd); | |
2257 | install_element(INTERFACE_NODE, &ipv6_nd_ra_interval_cmd); | |
2258 | install_element(INTERFACE_NODE, &ipv6_nd_ra_interval_msec_cmd); | |
2259 | install_element(INTERFACE_NODE, &no_ipv6_nd_ra_interval_cmd); | |
2260 | install_element(INTERFACE_NODE, &ipv6_nd_ra_lifetime_cmd); | |
2261 | install_element(INTERFACE_NODE, &no_ipv6_nd_ra_lifetime_cmd); | |
2262 | install_element(INTERFACE_NODE, &ipv6_nd_reachable_time_cmd); | |
2263 | install_element(INTERFACE_NODE, &no_ipv6_nd_reachable_time_cmd); | |
2264 | install_element(INTERFACE_NODE, &ipv6_nd_managed_config_flag_cmd); | |
2265 | install_element(INTERFACE_NODE, &no_ipv6_nd_managed_config_flag_cmd); | |
2266 | install_element(INTERFACE_NODE, &ipv6_nd_other_config_flag_cmd); | |
2267 | install_element(INTERFACE_NODE, &no_ipv6_nd_other_config_flag_cmd); | |
2268 | install_element(INTERFACE_NODE, &ipv6_nd_homeagent_config_flag_cmd); | |
2269 | install_element(INTERFACE_NODE, &no_ipv6_nd_homeagent_config_flag_cmd); | |
2270 | install_element(INTERFACE_NODE, &ipv6_nd_homeagent_preference_cmd); | |
2271 | install_element(INTERFACE_NODE, &no_ipv6_nd_homeagent_preference_cmd); | |
2272 | install_element(INTERFACE_NODE, &ipv6_nd_homeagent_lifetime_cmd); | |
2273 | install_element(INTERFACE_NODE, &no_ipv6_nd_homeagent_lifetime_cmd); | |
2274 | install_element(INTERFACE_NODE, | |
2275 | &ipv6_nd_adv_interval_config_option_cmd); | |
2276 | install_element(INTERFACE_NODE, | |
2277 | &no_ipv6_nd_adv_interval_config_option_cmd); | |
2278 | install_element(INTERFACE_NODE, &ipv6_nd_prefix_cmd); | |
2279 | install_element(INTERFACE_NODE, &no_ipv6_nd_prefix_cmd); | |
2280 | install_element(INTERFACE_NODE, &ipv6_nd_router_preference_cmd); | |
2281 | install_element(INTERFACE_NODE, &no_ipv6_nd_router_preference_cmd); | |
2282 | install_element(INTERFACE_NODE, &ipv6_nd_mtu_cmd); | |
2283 | install_element(INTERFACE_NODE, &no_ipv6_nd_mtu_cmd); | |
3eb4fbb0 LS |
2284 | install_element(INTERFACE_NODE, &ipv6_nd_rdnss_cmd); |
2285 | install_element(INTERFACE_NODE, &no_ipv6_nd_rdnss_cmd); | |
2286 | install_element(INTERFACE_NODE, &ipv6_nd_dnssl_cmd); | |
2287 | install_element(INTERFACE_NODE, &no_ipv6_nd_dnssl_cmd); | |
718e3744 | 2288 | } |
2289 | ||
d62a17ae | 2290 | static int if_join_all_router(int sock, struct interface *ifp) |
718e3744 | 2291 | { |
d62a17ae | 2292 | int ret; |
718e3744 | 2293 | |
d62a17ae | 2294 | struct ipv6_mreq mreq; |
718e3744 | 2295 | |
d62a17ae | 2296 | memset(&mreq, 0, sizeof(struct ipv6_mreq)); |
2297 | inet_pton(AF_INET6, ALLROUTER, &mreq.ipv6mr_multiaddr); | |
2298 | mreq.ipv6mr_interface = ifp->ifindex; | |
718e3744 | 2299 | |
d62a17ae | 2300 | ret = setsockopt(sock, IPPROTO_IPV6, IPV6_JOIN_GROUP, (char *)&mreq, |
2301 | sizeof mreq); | |
2302 | if (ret < 0) | |
450971aa | 2303 | flog_err_sys(EC_LIB_SOCKET, |
9df414fe QY |
2304 | "%s(%u): Failed to join group, socket %u error %s", |
2305 | ifp->name, ifp->ifindex, sock, | |
2306 | safe_strerror(errno)); | |
718e3744 | 2307 | |
d62a17ae | 2308 | if (IS_ZEBRA_DEBUG_EVENT) |
2309 | zlog_debug( | |
2310 | "%s(%u): Join All-Routers multicast group, socket %u", | |
2311 | ifp->name, ifp->ifindex, sock); | |
718e3744 | 2312 | |
d62a17ae | 2313 | return 0; |
718e3744 | 2314 | } |
2315 | ||
d62a17ae | 2316 | static int if_leave_all_router(int sock, struct interface *ifp) |
718e3744 | 2317 | { |
d62a17ae | 2318 | int ret; |
718e3744 | 2319 | |
d62a17ae | 2320 | struct ipv6_mreq mreq; |
718e3744 | 2321 | |
d62a17ae | 2322 | memset(&mreq, 0, sizeof(struct ipv6_mreq)); |
2323 | inet_pton(AF_INET6, ALLROUTER, &mreq.ipv6mr_multiaddr); | |
2324 | mreq.ipv6mr_interface = ifp->ifindex; | |
718e3744 | 2325 | |
d62a17ae | 2326 | ret = setsockopt(sock, IPPROTO_IPV6, IPV6_LEAVE_GROUP, (char *)&mreq, |
2327 | sizeof mreq); | |
2328 | if (ret < 0) | |
9df414fe | 2329 | flog_err_sys( |
450971aa | 2330 | EC_LIB_SOCKET, |
9df414fe QY |
2331 | "%s(%u): Failed to leave group, socket %u error %s", |
2332 | ifp->name, ifp->ifindex, sock, safe_strerror(errno)); | |
718e3744 | 2333 | |
d62a17ae | 2334 | if (IS_ZEBRA_DEBUG_EVENT) |
2335 | zlog_debug( | |
2336 | "%s(%u): Leave All-Routers multicast group, socket %u", | |
2337 | ifp->name, ifp->ifindex, sock); | |
718e3744 | 2338 | |
d62a17ae | 2339 | return 0; |
718e3744 | 2340 | } |
2341 | ||
2342 | #else | |
df9c8c57 | 2343 | void rtadv_init(struct zebra_vrf *zvrf) |
cd80d74f | 2344 | { |
d62a17ae | 2345 | /* Empty.*/; |
cd80d74f | 2346 | } |
df9c8c57 | 2347 | void rtadv_terminate(struct zebra_vrf *zvrf) |
cd80d74f | 2348 | { |
d62a17ae | 2349 | /* Empty.*/; |
cd80d74f | 2350 | } |
d62a17ae | 2351 | void rtadv_cmd_init(void) |
718e3744 | 2352 | { |
d62a17ae | 2353 | /* Empty.*/; |
718e3744 | 2354 | } |
56c1f7d8 | 2355 | #endif /* HAVE_RTADV */ |