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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; | |
0d6f7fd6 | 133 | msg.msg_controllen = sizeof(adata); |
d62a17ae | 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. */ | |
d7fc0e67 DS |
169 | static void rtadv_send_packet(int sock, struct interface *ifp, |
170 | ipv6_nd_suppress_ra_status stop) | |
718e3744 | 171 | { |
d62a17ae | 172 | struct msghdr msg; |
173 | struct iovec iov; | |
174 | struct cmsghdr *cmsgptr; | |
175 | struct in6_pktinfo *pkt; | |
176 | struct sockaddr_in6 addr; | |
177 | static void *adata = NULL; | |
178 | unsigned char buf[RTADV_MSG_SIZE]; | |
179 | struct nd_router_advert *rtadv; | |
180 | int ret; | |
181 | int len = 0; | |
182 | struct zebra_if *zif; | |
183 | struct rtadv_prefix *rprefix; | |
d7c0a89a QY |
184 | uint8_t all_nodes_addr[] = {0xff, 0x02, 0, 0, 0, 0, 0, 0, |
185 | 0, 0, 0, 0, 0, 0, 0, 1}; | |
d62a17ae | 186 | struct listnode *node; |
d7c0a89a | 187 | uint16_t pkt_RouterLifetime; |
d62a17ae | 188 | |
189 | /* | |
190 | * Allocate control message bufffer. This is dynamic because | |
191 | * CMSG_SPACE is not guaranteed not to call a function. Note that | |
192 | * the size will be different on different architectures due to | |
193 | * differing alignment rules. | |
194 | */ | |
195 | if (adata == NULL) { | |
196 | /* XXX Free on shutdown. */ | |
b8aa3767 | 197 | adata = calloc(1, CMSG_SPACE(sizeof(struct in6_pktinfo))); |
d62a17ae | 198 | |
b8aa3767 | 199 | if (adata == NULL) { |
9df414fe | 200 | zlog_debug( |
d62a17ae | 201 | "rtadv_send_packet: can't malloc control data"); |
b8aa3767 DS |
202 | exit(-1); |
203 | } | |
d62a17ae | 204 | } |
205 | ||
206 | /* Logging of packet. */ | |
207 | if (IS_ZEBRA_DEBUG_PACKET) | |
208 | zlog_debug("%s(%u): Tx RA, socket %u", ifp->name, ifp->ifindex, | |
209 | sock); | |
210 | ||
211 | /* Fill in sockaddr_in6. */ | |
212 | memset(&addr, 0, sizeof(struct sockaddr_in6)); | |
213 | addr.sin6_family = AF_INET6; | |
718e3744 | 214 | #ifdef SIN6_LEN |
d62a17ae | 215 | addr.sin6_len = sizeof(struct sockaddr_in6); |
718e3744 | 216 | #endif /* SIN6_LEN */ |
d62a17ae | 217 | addr.sin6_port = htons(IPPROTO_ICMPV6); |
218 | IPV6_ADDR_COPY(&addr.sin6_addr, all_nodes_addr); | |
219 | ||
220 | /* Fetch interface information. */ | |
221 | zif = ifp->info; | |
222 | ||
223 | /* Make router advertisement message. */ | |
224 | rtadv = (struct nd_router_advert *)buf; | |
225 | ||
226 | rtadv->nd_ra_type = ND_ROUTER_ADVERT; | |
227 | rtadv->nd_ra_code = 0; | |
228 | rtadv->nd_ra_cksum = 0; | |
229 | ||
230 | rtadv->nd_ra_curhoplimit = 64; | |
231 | ||
232 | /* RFC4191: Default Router Preference is 0 if Router Lifetime is 0. */ | |
233 | rtadv->nd_ra_flags_reserved = zif->rtadv.AdvDefaultLifetime == 0 | |
234 | ? 0 | |
235 | : zif->rtadv.DefaultPreference; | |
236 | rtadv->nd_ra_flags_reserved <<= 3; | |
237 | ||
238 | if (zif->rtadv.AdvManagedFlag) | |
239 | rtadv->nd_ra_flags_reserved |= ND_RA_FLAG_MANAGED; | |
240 | if (zif->rtadv.AdvOtherConfigFlag) | |
241 | rtadv->nd_ra_flags_reserved |= ND_RA_FLAG_OTHER; | |
242 | if (zif->rtadv.AdvHomeAgentFlag) | |
243 | rtadv->nd_ra_flags_reserved |= ND_RA_FLAG_HOME_AGENT; | |
244 | /* Note that according to Neighbor Discovery (RFC 4861 [18]), | |
245 | * AdvDefaultLifetime is by default based on the value of | |
246 | * MaxRtrAdvInterval. AdvDefaultLifetime is used in the Router Lifetime | |
247 | * field of Router Advertisements. Given that this field is expressed | |
248 | * in seconds, a small MaxRtrAdvInterval value can result in a zero | |
249 | * value for this field. To prevent this, routers SHOULD keep | |
250 | * AdvDefaultLifetime in at least one second, even if the use of | |
251 | * MaxRtrAdvInterval would result in a smaller value. -- RFC6275, 7.5 */ | |
252 | pkt_RouterLifetime = | |
253 | zif->rtadv.AdvDefaultLifetime != -1 | |
254 | ? zif->rtadv.AdvDefaultLifetime | |
255 | : MAX(1, 0.003 * zif->rtadv.MaxRtrAdvInterval); | |
d7fc0e67 DS |
256 | |
257 | /* send RA lifetime of 0 before stopping. rfc4861/6.2.5 */ | |
258 | rtadv->nd_ra_router_lifetime = | |
259 | (stop == RA_SUPPRESS) ? htons(0) : htons(pkt_RouterLifetime); | |
d62a17ae | 260 | rtadv->nd_ra_reachable = htonl(zif->rtadv.AdvReachableTime); |
261 | rtadv->nd_ra_retransmit = htonl(0); | |
262 | ||
263 | len = sizeof(struct nd_router_advert); | |
264 | ||
265 | /* If both the Home Agent Preference and Home Agent Lifetime are set to | |
266 | * their default values specified above, this option SHOULD NOT be | |
267 | * included in the Router Advertisement messages sent by this home | |
268 | * agent. -- RFC6275, 7.4 */ | |
269 | if (zif->rtadv.AdvHomeAgentFlag | |
270 | && (zif->rtadv.HomeAgentPreference | |
271 | || zif->rtadv.HomeAgentLifetime != -1)) { | |
272 | struct nd_opt_homeagent_info *ndopt_hai = | |
273 | (struct nd_opt_homeagent_info *)(buf + len); | |
274 | ndopt_hai->nd_opt_hai_type = ND_OPT_HA_INFORMATION; | |
275 | ndopt_hai->nd_opt_hai_len = 1; | |
276 | ndopt_hai->nd_opt_hai_reserved = 0; | |
277 | ndopt_hai->nd_opt_hai_preference = | |
278 | htons(zif->rtadv.HomeAgentPreference); | |
279 | /* 16-bit unsigned integer. The lifetime associated with the | |
280 | * home | |
281 | * agent in units of seconds. The default value is the same as | |
282 | * the | |
283 | * Router Lifetime, as specified in the main body of the Router | |
284 | * Advertisement. The maximum value corresponds to 18.2 hours. | |
285 | * A | |
286 | * value of 0 MUST NOT be used. -- RFC6275, 7.5 */ | |
287 | ndopt_hai->nd_opt_hai_lifetime = | |
288 | htons(zif->rtadv.HomeAgentLifetime != -1 | |
289 | ? zif->rtadv.HomeAgentLifetime | |
290 | : MAX(1, pkt_RouterLifetime) /* 0 is OK | |
291 | for RL, | |
292 | but not | |
293 | for HAL*/ | |
9d303b37 | 294 | ); |
d62a17ae | 295 | len += sizeof(struct nd_opt_homeagent_info); |
296 | } | |
718e3744 | 297 | |
d62a17ae | 298 | if (zif->rtadv.AdvIntervalOption) { |
299 | struct nd_opt_adv_interval *ndopt_adv = | |
300 | (struct nd_opt_adv_interval *)(buf + len); | |
301 | ndopt_adv->nd_opt_ai_type = ND_OPT_ADV_INTERVAL; | |
302 | ndopt_adv->nd_opt_ai_len = 1; | |
303 | ndopt_adv->nd_opt_ai_reserved = 0; | |
304 | ndopt_adv->nd_opt_ai_interval = | |
305 | htonl(zif->rtadv.MaxRtrAdvInterval); | |
306 | len += sizeof(struct nd_opt_adv_interval); | |
307 | } | |
308 | ||
309 | /* Fill in prefix. */ | |
310 | for (ALL_LIST_ELEMENTS_RO(zif->rtadv.AdvPrefixList, node, rprefix)) { | |
311 | struct nd_opt_prefix_info *pinfo; | |
718e3744 | 312 | |
d62a17ae | 313 | pinfo = (struct nd_opt_prefix_info *)(buf + len); |
718e3744 | 314 | |
d62a17ae | 315 | pinfo->nd_opt_pi_type = ND_OPT_PREFIX_INFORMATION; |
316 | pinfo->nd_opt_pi_len = 4; | |
317 | pinfo->nd_opt_pi_prefix_len = rprefix->prefix.prefixlen; | |
318 | ||
319 | pinfo->nd_opt_pi_flags_reserved = 0; | |
320 | if (rprefix->AdvOnLinkFlag) | |
321 | pinfo->nd_opt_pi_flags_reserved |= | |
322 | ND_OPT_PI_FLAG_ONLINK; | |
323 | if (rprefix->AdvAutonomousFlag) | |
324 | pinfo->nd_opt_pi_flags_reserved |= ND_OPT_PI_FLAG_AUTO; | |
325 | if (rprefix->AdvRouterAddressFlag) | |
326 | pinfo->nd_opt_pi_flags_reserved |= ND_OPT_PI_FLAG_RADDR; | |
327 | ||
328 | pinfo->nd_opt_pi_valid_time = htonl(rprefix->AdvValidLifetime); | |
329 | pinfo->nd_opt_pi_preferred_time = | |
330 | htonl(rprefix->AdvPreferredLifetime); | |
331 | pinfo->nd_opt_pi_reserved2 = 0; | |
332 | ||
333 | IPV6_ADDR_COPY(&pinfo->nd_opt_pi_prefix, | |
334 | &rprefix->prefix.prefix); | |
335 | ||
336 | #ifdef DEBUG | |
337 | { | |
d7c0a89a | 338 | uint8_t buf[INET6_ADDRSTRLEN]; |
d62a17ae | 339 | |
340 | zlog_debug("DEBUG %s", | |
341 | inet_ntop(AF_INET6, &pinfo->nd_opt_pi_prefix, | |
342 | buf, INET6_ADDRSTRLEN)); | |
343 | } | |
718e3744 | 344 | #endif /* DEBUG */ |
345 | ||
d62a17ae | 346 | len += sizeof(struct nd_opt_prefix_info); |
347 | } | |
348 | ||
349 | /* Hardware address. */ | |
350 | if (ifp->hw_addr_len != 0) { | |
351 | buf[len++] = ND_OPT_SOURCE_LINKADDR; | |
352 | ||
353 | /* Option length should be rounded up to next octet if | |
354 | the link address does not end on an octet boundary. */ | |
355 | buf[len++] = (ifp->hw_addr_len + 9) >> 3; | |
356 | ||
357 | memcpy(buf + len, ifp->hw_addr, ifp->hw_addr_len); | |
358 | len += ifp->hw_addr_len; | |
359 | ||
360 | /* Pad option to end on an octet boundary. */ | |
361 | memset(buf + len, 0, -(ifp->hw_addr_len + 2) & 0x7); | |
362 | len += -(ifp->hw_addr_len + 2) & 0x7; | |
363 | } | |
364 | ||
365 | /* MTU */ | |
366 | if (zif->rtadv.AdvLinkMTU) { | |
367 | struct nd_opt_mtu *opt = (struct nd_opt_mtu *)(buf + len); | |
368 | opt->nd_opt_mtu_type = ND_OPT_MTU; | |
369 | opt->nd_opt_mtu_len = 1; | |
370 | opt->nd_opt_mtu_reserved = 0; | |
371 | opt->nd_opt_mtu_mtu = htonl(zif->rtadv.AdvLinkMTU); | |
372 | len += sizeof(struct nd_opt_mtu); | |
373 | } | |
374 | ||
7eab94f9 LS |
375 | /* |
376 | * There is no limit on the number of configurable recursive DNS | |
377 | * servers or search list entries. We don't want the RA message | |
378 | * to exceed the link's MTU (risking fragmentation) or even | |
379 | * blow the stack buffer allocated for it. | |
380 | */ | |
381 | size_t max_len = MIN(ifp->mtu6 - 40, sizeof(buf)); | |
382 | ||
3eb4fbb0 LS |
383 | /* Recursive DNS servers */ |
384 | struct rtadv_rdnss *rdnss; | |
385 | ||
386 | for (ALL_LIST_ELEMENTS_RO(zif->rtadv.AdvRDNSSList, node, rdnss)) { | |
7eab94f9 LS |
387 | size_t opt_len = |
388 | sizeof(struct nd_opt_rdnss) + sizeof(struct in6_addr); | |
389 | ||
390 | if (len + opt_len > max_len) { | |
391 | zlog_warn( | |
392 | "%s(%u): Tx RA: RDNSS option would exceed MTU, omitting it", | |
393 | ifp->name, ifp->ifindex); | |
394 | goto no_more_opts; | |
395 | } | |
3eb4fbb0 LS |
396 | struct nd_opt_rdnss *opt = (struct nd_opt_rdnss *)(buf + len); |
397 | ||
398 | opt->nd_opt_rdnss_type = ND_OPT_RDNSS; | |
7eab94f9 | 399 | opt->nd_opt_rdnss_len = opt_len / 8; |
3eb4fbb0 LS |
400 | opt->nd_opt_rdnss_reserved = 0; |
401 | opt->nd_opt_rdnss_lifetime = htonl( | |
402 | rdnss->lifetime_set | |
403 | ? rdnss->lifetime | |
404 | : MAX(1, 0.003 * zif->rtadv.MaxRtrAdvInterval)); | |
405 | ||
406 | len += sizeof(struct nd_opt_rdnss); | |
7eab94f9 | 407 | |
3eb4fbb0 LS |
408 | IPV6_ADDR_COPY(buf + len, &rdnss->addr); |
409 | len += sizeof(struct in6_addr); | |
410 | } | |
411 | ||
412 | /* DNS search list */ | |
413 | struct rtadv_dnssl *dnssl; | |
414 | ||
415 | for (ALL_LIST_ELEMENTS_RO(zif->rtadv.AdvDNSSLList, node, dnssl)) { | |
7eab94f9 LS |
416 | size_t opt_len = sizeof(struct nd_opt_dnssl) |
417 | + ((dnssl->encoded_len + 7) & ~7); | |
418 | ||
419 | if (len + opt_len > max_len) { | |
420 | zlog_warn( | |
421 | "%s(%u): Tx RA: DNSSL option would exceed MTU, omitting it", | |
422 | ifp->name, ifp->ifindex); | |
423 | goto no_more_opts; | |
424 | } | |
3eb4fbb0 LS |
425 | struct nd_opt_dnssl *opt = (struct nd_opt_dnssl *)(buf + len); |
426 | ||
427 | opt->nd_opt_dnssl_type = ND_OPT_DNSSL; | |
7eab94f9 | 428 | opt->nd_opt_dnssl_len = opt_len / 8; |
3eb4fbb0 LS |
429 | opt->nd_opt_dnssl_reserved = 0; |
430 | opt->nd_opt_dnssl_lifetime = htonl( | |
431 | dnssl->lifetime_set | |
432 | ? dnssl->lifetime | |
433 | : MAX(1, 0.003 * zif->rtadv.MaxRtrAdvInterval)); | |
434 | ||
435 | len += sizeof(struct nd_opt_dnssl); | |
436 | ||
3eb4fbb0 LS |
437 | memcpy(buf + len, dnssl->encoded_name, dnssl->encoded_len); |
438 | len += dnssl->encoded_len; | |
439 | ||
440 | /* Zero-pad to 8-octet boundary */ | |
441 | while (len % 8) | |
442 | buf[len++] = '\0'; | |
3eb4fbb0 LS |
443 | } |
444 | ||
7eab94f9 LS |
445 | no_more_opts: |
446 | ||
d62a17ae | 447 | msg.msg_name = (void *)&addr; |
448 | msg.msg_namelen = sizeof(struct sockaddr_in6); | |
449 | msg.msg_iov = &iov; | |
450 | msg.msg_iovlen = 1; | |
451 | msg.msg_control = (void *)adata; | |
452 | msg.msg_controllen = CMSG_SPACE(sizeof(struct in6_pktinfo)); | |
453 | msg.msg_flags = 0; | |
454 | iov.iov_base = buf; | |
455 | iov.iov_len = len; | |
456 | ||
adf0e7c6 | 457 | cmsgptr = CMSG_FIRSTHDR(&msg); |
d62a17ae | 458 | cmsgptr->cmsg_len = CMSG_LEN(sizeof(struct in6_pktinfo)); |
459 | cmsgptr->cmsg_level = IPPROTO_IPV6; | |
460 | cmsgptr->cmsg_type = IPV6_PKTINFO; | |
461 | ||
462 | pkt = (struct in6_pktinfo *)CMSG_DATA(cmsgptr); | |
463 | memset(&pkt->ipi6_addr, 0, sizeof(struct in6_addr)); | |
464 | pkt->ipi6_ifindex = ifp->ifindex; | |
465 | ||
466 | ret = sendmsg(sock, &msg, 0); | |
467 | if (ret < 0) { | |
450971aa | 468 | flog_err_sys(EC_LIB_SOCKET, |
09c866e3 QY |
469 | "%s(%u): Tx RA failed, socket %u error %d (%s)", |
470 | ifp->name, ifp->ifindex, sock, errno, | |
471 | safe_strerror(errno)); | |
d62a17ae | 472 | } else |
473 | zif->ra_sent++; | |
718e3744 | 474 | } |
475 | ||
d62a17ae | 476 | static int rtadv_timer(struct thread *thread) |
718e3744 | 477 | { |
df9c8c57 | 478 | struct zebra_vrf *zvrf = THREAD_ARG(thread); |
d62a17ae | 479 | struct vrf *vrf; |
d62a17ae | 480 | struct interface *ifp; |
481 | struct zebra_if *zif; | |
482 | int period; | |
483 | ||
df9c8c57 PG |
484 | zvrf->rtadv.ra_timer = NULL; |
485 | if (zvrf->rtadv.adv_msec_if_count == 0) { | |
d62a17ae | 486 | period = 1000; /* 1 s */ |
df9c8c57 | 487 | rtadv_event(zvrf, RTADV_TIMER, 1 /* 1 s */); |
d62a17ae | 488 | } else { |
489 | period = 10; /* 10 ms */ | |
df9c8c57 | 490 | rtadv_event(zvrf, RTADV_TIMER_MSEC, 10 /* 10 ms */); |
d62a17ae | 491 | } |
492 | ||
a2addae8 | 493 | RB_FOREACH (vrf, vrf_id_head, &vrfs_by_id) |
451fda4f | 494 | FOR_ALL_INTERFACES (vrf, ifp) { |
a2addae8 RW |
495 | if (if_is_loopback(ifp) |
496 | || CHECK_FLAG(ifp->status, | |
497 | ZEBRA_INTERFACE_VRF_LOOPBACK) | |
498 | || !if_is_operative(ifp)) | |
499 | continue; | |
500 | ||
501 | zif = ifp->info; | |
502 | ||
503 | if (zif->rtadv.AdvSendAdvertisements) { | |
adee8f21 DS |
504 | if (zif->rtadv.inFastRexmit |
505 | && zif->rtadv.UseFastRexmit) { | |
a2addae8 RW |
506 | /* We assume we fast rexmit every sec so |
507 | * no | |
508 | * additional vars */ | |
509 | if (--zif->rtadv.NumFastReXmitsRemain | |
510 | <= 0) | |
511 | zif->rtadv.inFastRexmit = 0; | |
512 | ||
513 | if (IS_ZEBRA_DEBUG_SEND) | |
514 | zlog_debug( | |
515 | "Fast RA Rexmit on interface %s", | |
516 | ifp->name); | |
517 | ||
9245fe61 | 518 | rtadv_send_packet(rtadv_get_socket(zvrf), |
d7fc0e67 | 519 | ifp, RA_ENABLE); |
a2addae8 RW |
520 | } else { |
521 | zif->rtadv.AdvIntervalTimer -= period; | |
522 | if (zif->rtadv.AdvIntervalTimer <= 0) { | |
523 | /* FIXME: using | |
524 | MaxRtrAdvInterval each | |
525 | time isn't what section | |
526 | 6.2.4 of RFC4861 tells to do. | |
527 | */ | |
528 | zif->rtadv.AdvIntervalTimer = | |
529 | zif->rtadv | |
530 | .MaxRtrAdvInterval; | |
531 | rtadv_send_packet( | |
9245fe61 | 532 | rtadv_get_socket(zvrf), |
d7fc0e67 | 533 | ifp, RA_ENABLE); |
a2addae8 | 534 | } |
d62a17ae | 535 | } |
536 | } | |
537 | } | |
d62a17ae | 538 | |
539 | return 0; | |
718e3744 | 540 | } |
541 | ||
d62a17ae | 542 | static void rtadv_process_solicit(struct interface *ifp) |
718e3744 | 543 | { |
a36898e7 | 544 | struct zebra_vrf *zvrf = vrf_info_lookup(ifp->vrf_id); |
adee8f21 | 545 | struct zebra_if *zif; |
718e3744 | 546 | |
df9c8c57 | 547 | assert(zvrf); |
adee8f21 DS |
548 | zif = ifp->info; |
549 | ||
550 | /* | |
551 | * If FastRetransmit is enabled, send the RA immediately. | |
552 | * If not enabled but it has been more than MIN_DELAY_BETWEEN_RAS | |
553 | * (3 seconds) since the last RA was sent, send it now and reset | |
554 | * the timer to start at the max (configured) again. | |
555 | * If not enabled and it is less than 3 seconds since the last | |
556 | * RA packet was sent, set the timer for 3 seconds so the next | |
557 | * one will be sent with a minimum of 3 seconds between RAs. | |
558 | * RFC4861 sec 6.2.6 | |
559 | */ | |
560 | if ((zif->rtadv.UseFastRexmit) | |
561 | || (zif->rtadv.AdvIntervalTimer <= | |
562 | (zif->rtadv.MaxRtrAdvInterval - MIN_DELAY_BETWEEN_RAS))) { | |
d7fc0e67 | 563 | rtadv_send_packet(rtadv_get_socket(zvrf), ifp, RA_ENABLE); |
adee8f21 DS |
564 | zif->rtadv.AdvIntervalTimer = zif->rtadv.MaxRtrAdvInterval; |
565 | } else | |
566 | zif->rtadv.AdvIntervalTimer = MIN_DELAY_BETWEEN_RAS; | |
718e3744 | 567 | } |
568 | ||
71974bf5 DS |
569 | /* |
570 | * This function processes optional attributes off of | |
571 | * end of a RA packet received. At this point in | |
572 | * time we only care about this in one situation | |
573 | * which is when a interface does not have a LL | |
574 | * v6 address. We still need to be able to install | |
575 | * the mac address for v4 to v6 resolution | |
576 | */ | |
577 | static void rtadv_process_optional(uint8_t *optional, unsigned int len, | |
578 | struct interface *ifp, | |
579 | struct sockaddr_in6 *addr) | |
580 | { | |
581 | char *mac; | |
582 | ||
583 | while (len > 0) { | |
584 | struct nd_opt_hdr *opt_hdr = (struct nd_opt_hdr *)optional; | |
585 | ||
586 | switch(opt_hdr->nd_opt_type) { | |
587 | case ND_OPT_SOURCE_LINKADDR: | |
588 | mac = (char *)(optional+2); | |
589 | if_nbr_mac_to_ipv4ll_neigh_update(ifp, mac, | |
590 | &addr->sin6_addr, 1); | |
591 | break; | |
592 | default: | |
593 | break; | |
594 | } | |
595 | ||
596 | len -= 8 * opt_hdr->nd_opt_len; | |
597 | optional += 8 * opt_hdr->nd_opt_len; | |
598 | } | |
599 | } | |
600 | ||
d7c0a89a | 601 | static void rtadv_process_advert(uint8_t *msg, unsigned int len, |
d62a17ae | 602 | struct interface *ifp, |
603 | struct sockaddr_in6 *addr) | |
718e3744 | 604 | { |
d62a17ae | 605 | struct nd_router_advert *radvert; |
606 | char addr_str[INET6_ADDRSTRLEN]; | |
607 | struct zebra_if *zif; | |
608 | struct prefix p; | |
718e3744 | 609 | |
d62a17ae | 610 | zif = ifp->info; |
a80beece | 611 | |
d62a17ae | 612 | inet_ntop(AF_INET6, &addr->sin6_addr, addr_str, INET6_ADDRSTRLEN); |
613 | ||
614 | if (len < sizeof(struct nd_router_advert)) { | |
71974bf5 DS |
615 | if (IS_ZEBRA_DEBUG_PACKET) |
616 | zlog_debug("%s(%u): Rx RA with invalid length %d from %s", | |
617 | ifp->name, ifp->ifindex, len, addr_str); | |
d62a17ae | 618 | return; |
619 | } | |
71974bf5 | 620 | |
d62a17ae | 621 | if (!IN6_IS_ADDR_LINKLOCAL(&addr->sin6_addr)) { |
71974bf5 DS |
622 | rtadv_process_optional(msg + sizeof(struct nd_router_advert), |
623 | len - sizeof(struct nd_router_advert), | |
624 | ifp, addr); | |
625 | if (IS_ZEBRA_DEBUG_PACKET) | |
626 | zlog_debug("%s(%u): Rx RA with non-linklocal source address from %s", | |
627 | ifp->name, ifp->ifindex, addr_str); | |
d62a17ae | 628 | return; |
629 | } | |
630 | ||
631 | radvert = (struct nd_router_advert *)msg; | |
632 | ||
633 | if ((radvert->nd_ra_curhoplimit && zif->rtadv.AdvCurHopLimit) | |
634 | && (radvert->nd_ra_curhoplimit != zif->rtadv.AdvCurHopLimit)) { | |
9df414fe | 635 | flog_warn( |
e914ccbe | 636 | EC_ZEBRA_RA_PARAM_MISMATCH, |
d62a17ae | 637 | "%s(%u): Rx RA - our AdvCurHopLimit doesn't agree with %s", |
638 | ifp->name, ifp->ifindex, addr_str); | |
639 | } | |
640 | ||
641 | if ((radvert->nd_ra_flags_reserved & ND_RA_FLAG_MANAGED) | |
642 | && !zif->rtadv.AdvManagedFlag) { | |
9df414fe | 643 | flog_warn( |
e914ccbe | 644 | EC_ZEBRA_RA_PARAM_MISMATCH, |
d62a17ae | 645 | "%s(%u): Rx RA - our AdvManagedFlag doesn't agree with %s", |
646 | ifp->name, ifp->ifindex, addr_str); | |
647 | } | |
648 | ||
649 | if ((radvert->nd_ra_flags_reserved & ND_RA_FLAG_OTHER) | |
650 | && !zif->rtadv.AdvOtherConfigFlag) { | |
9df414fe | 651 | flog_warn( |
e914ccbe | 652 | EC_ZEBRA_RA_PARAM_MISMATCH, |
d62a17ae | 653 | "%s(%u): Rx RA - our AdvOtherConfigFlag doesn't agree with %s", |
654 | ifp->name, ifp->ifindex, addr_str); | |
655 | } | |
656 | ||
657 | if ((radvert->nd_ra_reachable && zif->rtadv.AdvReachableTime) | |
658 | && (ntohl(radvert->nd_ra_reachable) | |
659 | != zif->rtadv.AdvReachableTime)) { | |
9df414fe | 660 | flog_warn( |
e914ccbe | 661 | EC_ZEBRA_RA_PARAM_MISMATCH, |
d62a17ae | 662 | "%s(%u): Rx RA - our AdvReachableTime doesn't agree with %s", |
663 | ifp->name, ifp->ifindex, addr_str); | |
664 | } | |
665 | ||
666 | if ((radvert->nd_ra_retransmit && zif->rtadv.AdvRetransTimer) | |
667 | && (ntohl(radvert->nd_ra_retransmit) | |
668 | != (unsigned int)zif->rtadv.AdvRetransTimer)) { | |
9df414fe | 669 | flog_warn( |
e914ccbe | 670 | EC_ZEBRA_RA_PARAM_MISMATCH, |
d62a17ae | 671 | "%s(%u): Rx RA - our AdvRetransTimer doesn't agree with %s", |
672 | ifp->name, ifp->ifindex, addr_str); | |
673 | } | |
674 | ||
675 | /* Create entry for neighbor if not known. */ | |
676 | p.family = AF_INET6; | |
a85297a7 | 677 | IPV6_ADDR_COPY(&p.u.prefix6, &addr->sin6_addr); |
d62a17ae | 678 | p.prefixlen = IPV6_MAX_PREFIXLEN; |
679 | ||
680 | if (!nbr_connected_check(ifp, &p)) | |
681 | nbr_connected_add_ipv6(ifp, &addr->sin6_addr); | |
718e3744 | 682 | } |
683 | ||
d62a17ae | 684 | |
d7c0a89a | 685 | static void rtadv_process_packet(uint8_t *buf, unsigned int len, |
d62a17ae | 686 | ifindex_t ifindex, int hoplimit, |
687 | struct sockaddr_in6 *from, | |
df9c8c57 | 688 | struct zebra_vrf *zvrf) |
718e3744 | 689 | { |
d62a17ae | 690 | struct icmp6_hdr *icmph; |
691 | struct interface *ifp; | |
692 | struct zebra_if *zif; | |
693 | char addr_str[INET6_ADDRSTRLEN]; | |
694 | ||
695 | inet_ntop(AF_INET6, &from->sin6_addr, addr_str, INET6_ADDRSTRLEN); | |
696 | ||
697 | /* Interface search. */ | |
df9c8c57 | 698 | ifp = if_lookup_by_index(ifindex, zvrf->vrf->vrf_id); |
d62a17ae | 699 | if (ifp == NULL) { |
e914ccbe | 700 | flog_warn(EC_ZEBRA_UNKNOWN_INTERFACE, |
9df414fe | 701 | "RA/RS received on unknown IF %u from %s", ifindex, |
d62a17ae | 702 | addr_str); |
703 | return; | |
704 | } | |
705 | ||
706 | if (IS_ZEBRA_DEBUG_PACKET) | |
707 | zlog_debug("%s(%u): Rx RA/RS len %d from %s", ifp->name, | |
708 | ifp->ifindex, len, addr_str); | |
709 | ||
710 | if (if_is_loopback(ifp) | |
711 | || CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK)) | |
712 | return; | |
718e3744 | 713 | |
d62a17ae | 714 | /* Check interface configuration. */ |
715 | zif = ifp->info; | |
716 | if (!zif->rtadv.AdvSendAdvertisements) | |
717 | return; | |
718e3744 | 718 | |
d62a17ae | 719 | /* ICMP message length check. */ |
720 | if (len < sizeof(struct icmp6_hdr)) { | |
9df414fe QY |
721 | zlog_debug("%s(%u): Rx RA with Invalid ICMPV6 packet length %d", |
722 | ifp->name, ifp->ifindex, len); | |
d62a17ae | 723 | return; |
724 | } | |
725 | ||
726 | icmph = (struct icmp6_hdr *)buf; | |
718e3744 | 727 | |
d62a17ae | 728 | /* ICMP message type check. */ |
729 | if (icmph->icmp6_type != ND_ROUTER_SOLICIT | |
730 | && icmph->icmp6_type != ND_ROUTER_ADVERT) { | |
9df414fe QY |
731 | zlog_debug("%s(%u): Rx RA - Unwanted ICMPV6 message type %d", |
732 | ifp->name, ifp->ifindex, icmph->icmp6_type); | |
d62a17ae | 733 | return; |
734 | } | |
718e3744 | 735 | |
d62a17ae | 736 | /* Hoplimit check. */ |
737 | if (hoplimit >= 0 && hoplimit != 255) { | |
9df414fe QY |
738 | zlog_debug("%s(%u): Rx RA - Invalid hoplimit %d", ifp->name, |
739 | ifp->ifindex, hoplimit); | |
d62a17ae | 740 | return; |
741 | } | |
718e3744 | 742 | |
d62a17ae | 743 | /* Check ICMP message type. */ |
744 | if (icmph->icmp6_type == ND_ROUTER_SOLICIT) | |
745 | rtadv_process_solicit(ifp); | |
746 | else if (icmph->icmp6_type == ND_ROUTER_ADVERT) | |
747 | rtadv_process_advert(buf, len, ifp, from); | |
718e3744 | 748 | |
d62a17ae | 749 | return; |
718e3744 | 750 | } |
751 | ||
d62a17ae | 752 | static int rtadv_read(struct thread *thread) |
718e3744 | 753 | { |
d62a17ae | 754 | int sock; |
755 | int len; | |
d7c0a89a | 756 | uint8_t buf[RTADV_MSG_SIZE]; |
d62a17ae | 757 | struct sockaddr_in6 from; |
758 | ifindex_t ifindex = 0; | |
759 | int hoplimit = -1; | |
df9c8c57 | 760 | struct zebra_vrf *zvrf = THREAD_ARG(thread); |
d62a17ae | 761 | |
762 | sock = THREAD_FD(thread); | |
df9c8c57 | 763 | zvrf->rtadv.ra_read = NULL; |
d62a17ae | 764 | |
765 | /* Register myself. */ | |
df9c8c57 | 766 | rtadv_event(zvrf, RTADV_READ, sock); |
d62a17ae | 767 | |
df9c8c57 | 768 | len = rtadv_recv_packet(zvrf, sock, buf, sizeof(buf), &from, &ifindex, |
d62a17ae | 769 | &hoplimit); |
770 | ||
771 | if (len < 0) { | |
450971aa | 772 | flog_err_sys(EC_LIB_SOCKET, |
9df414fe QY |
773 | "RA/RS recv failed, socket %u error %s", sock, |
774 | safe_strerror(errno)); | |
d62a17ae | 775 | return len; |
776 | } | |
777 | ||
df9c8c57 | 778 | rtadv_process_packet(buf, (unsigned)len, ifindex, hoplimit, &from, zvrf); |
d62a17ae | 779 | |
780 | return 0; | |
718e3744 | 781 | } |
6b0655a2 | 782 | |
fe533c56 | 783 | static int rtadv_make_socket(ns_id_t ns_id) |
718e3744 | 784 | { |
8d2dcc85 | 785 | int sock = -1; |
d62a17ae | 786 | int ret = 0; |
787 | struct icmp6_filter filter; | |
788 | ||
0cf6db21 | 789 | frr_with_privs(&zserv_privs) { |
d62a17ae | 790 | |
01b9e3fd | 791 | sock = ns_socket(AF_INET6, SOCK_RAW, IPPROTO_ICMPV6, ns_id); |
d62a17ae | 792 | |
01b9e3fd | 793 | } |
d62a17ae | 794 | |
795 | if (sock < 0) { | |
d62a17ae | 796 | return -1; |
797 | } | |
798 | ||
799 | ret = setsockopt_ipv6_pktinfo(sock, 1); | |
800 | if (ret < 0) { | |
801 | close(sock); | |
802 | return ret; | |
803 | } | |
804 | ret = setsockopt_ipv6_multicast_loop(sock, 0); | |
805 | if (ret < 0) { | |
806 | close(sock); | |
807 | return ret; | |
808 | } | |
809 | ret = setsockopt_ipv6_unicast_hops(sock, 255); | |
810 | if (ret < 0) { | |
811 | close(sock); | |
812 | return ret; | |
813 | } | |
814 | ret = setsockopt_ipv6_multicast_hops(sock, 255); | |
815 | if (ret < 0) { | |
816 | close(sock); | |
817 | return ret; | |
818 | } | |
819 | ret = setsockopt_ipv6_hoplimit(sock, 1); | |
820 | if (ret < 0) { | |
821 | close(sock); | |
822 | return ret; | |
823 | } | |
824 | ||
825 | ICMP6_FILTER_SETBLOCKALL(&filter); | |
826 | ICMP6_FILTER_SETPASS(ND_ROUTER_SOLICIT, &filter); | |
827 | ICMP6_FILTER_SETPASS(ND_ROUTER_ADVERT, &filter); | |
828 | ||
829 | ret = setsockopt(sock, IPPROTO_ICMPV6, ICMP6_FILTER, &filter, | |
830 | sizeof(struct icmp6_filter)); | |
831 | if (ret < 0) { | |
832 | zlog_info("ICMP6_FILTER set fail: %s", safe_strerror(errno)); | |
44f12f20 | 833 | close(sock); |
d62a17ae | 834 | return ret; |
835 | } | |
836 | ||
837 | return sock; | |
718e3744 | 838 | } |
839 | ||
d62a17ae | 840 | static struct rtadv_prefix *rtadv_prefix_new(void) |
718e3744 | 841 | { |
d62a17ae | 842 | return XCALLOC(MTYPE_RTADV_PREFIX, sizeof(struct rtadv_prefix)); |
718e3744 | 843 | } |
844 | ||
d62a17ae | 845 | static void rtadv_prefix_free(struct rtadv_prefix *rtadv_prefix) |
718e3744 | 846 | { |
d62a17ae | 847 | XFREE(MTYPE_RTADV_PREFIX, rtadv_prefix); |
848 | } | |
718e3744 | 849 | |
d62a17ae | 850 | static struct rtadv_prefix *rtadv_prefix_lookup(struct list *rplist, |
851 | struct prefix_ipv6 *p) | |
852 | { | |
853 | struct listnode *node; | |
854 | struct rtadv_prefix *rprefix; | |
855 | ||
856 | for (ALL_LIST_ELEMENTS_RO(rplist, node, rprefix)) | |
857 | if (prefix_same((struct prefix *)&rprefix->prefix, | |
858 | (struct prefix *)p)) | |
859 | return rprefix; | |
860 | return NULL; | |
718e3744 | 861 | } |
862 | ||
d62a17ae | 863 | static struct rtadv_prefix *rtadv_prefix_get(struct list *rplist, |
864 | struct prefix_ipv6 *p) | |
718e3744 | 865 | { |
d62a17ae | 866 | struct rtadv_prefix *rprefix; |
867 | ||
868 | rprefix = rtadv_prefix_lookup(rplist, p); | |
869 | if (rprefix) | |
870 | return rprefix; | |
718e3744 | 871 | |
d62a17ae | 872 | rprefix = rtadv_prefix_new(); |
873 | memcpy(&rprefix->prefix, p, sizeof(struct prefix_ipv6)); | |
874 | listnode_add(rplist, rprefix); | |
718e3744 | 875 | |
d62a17ae | 876 | return rprefix; |
718e3744 | 877 | } |
878 | ||
2a855763 DS |
879 | static void rtadv_prefix_set_defaults(struct rtadv_prefix *rp) |
880 | { | |
881 | rp->AdvAutonomousFlag = 1; | |
882 | rp->AdvOnLinkFlag = 1; | |
883 | rp->AdvRouterAddressFlag = 0; | |
884 | rp->AdvPreferredLifetime = RTADV_PREFERRED_LIFETIME; | |
885 | rp->AdvValidLifetime = RTADV_VALID_LIFETIME; | |
886 | } | |
887 | ||
d62a17ae | 888 | static void rtadv_prefix_set(struct zebra_if *zif, struct rtadv_prefix *rp) |
718e3744 | 889 | { |
d62a17ae | 890 | struct rtadv_prefix *rprefix; |
891 | ||
892 | rprefix = rtadv_prefix_get(zif->rtadv.AdvPrefixList, &rp->prefix); | |
893 | ||
2a855763 DS |
894 | /* |
895 | * Set parameters based on where the prefix is created. | |
896 | * If auto-created based on kernel address addition, set the | |
897 | * default values. If created from a manual "ipv6 nd prefix" | |
898 | * command, take the parameters from the manual command. Note | |
899 | * that if the manual command exists, the default values will | |
900 | * not overwrite the manual values. | |
901 | */ | |
902 | if (rp->AdvPrefixCreate == PREFIX_SRC_MANUAL) { | |
903 | if (rprefix->AdvPrefixCreate == PREFIX_SRC_AUTO) | |
904 | rprefix->AdvPrefixCreate = PREFIX_SRC_BOTH; | |
905 | else | |
906 | rprefix->AdvPrefixCreate = PREFIX_SRC_MANUAL; | |
907 | ||
908 | rprefix->AdvAutonomousFlag = rp->AdvAutonomousFlag; | |
909 | rprefix->AdvOnLinkFlag = rp->AdvOnLinkFlag; | |
910 | rprefix->AdvRouterAddressFlag = rp->AdvRouterAddressFlag; | |
911 | rprefix->AdvPreferredLifetime = rp->AdvPreferredLifetime; | |
912 | rprefix->AdvValidLifetime = rp->AdvValidLifetime; | |
913 | } else if (rp->AdvPrefixCreate == PREFIX_SRC_AUTO) { | |
914 | if (rprefix->AdvPrefixCreate == PREFIX_SRC_MANUAL) | |
915 | rprefix->AdvPrefixCreate = PREFIX_SRC_BOTH; | |
916 | else { | |
917 | rprefix->AdvPrefixCreate = PREFIX_SRC_AUTO; | |
918 | rtadv_prefix_set_defaults(rprefix); | |
919 | } | |
920 | } | |
718e3744 | 921 | } |
922 | ||
d62a17ae | 923 | static int rtadv_prefix_reset(struct zebra_if *zif, struct rtadv_prefix *rp) |
718e3744 | 924 | { |
d62a17ae | 925 | struct rtadv_prefix *rprefix; |
926 | ||
927 | rprefix = rtadv_prefix_lookup(zif->rtadv.AdvPrefixList, &rp->prefix); | |
928 | if (rprefix != NULL) { | |
2a855763 DS |
929 | |
930 | /* | |
931 | * When deleting an address from the list, need to take care | |
932 | * it wasn't defined both automatically via kernel | |
933 | * address addition as well as manually by vtysh cli. If both, | |
934 | * we don't actually delete but may change the parameters | |
935 | * back to default if a manually defined entry is deleted. | |
936 | */ | |
937 | if (rp->AdvPrefixCreate == PREFIX_SRC_MANUAL) { | |
938 | if (rprefix->AdvPrefixCreate == PREFIX_SRC_BOTH) { | |
939 | rprefix->AdvPrefixCreate = PREFIX_SRC_AUTO; | |
940 | rtadv_prefix_set_defaults(rprefix); | |
941 | return 1; | |
942 | } | |
943 | } else if (rp->AdvPrefixCreate == PREFIX_SRC_AUTO) { | |
944 | if (rprefix->AdvPrefixCreate == PREFIX_SRC_BOTH) { | |
945 | rprefix->AdvPrefixCreate = PREFIX_SRC_MANUAL; | |
946 | return 1; | |
947 | } | |
948 | } | |
949 | ||
d62a17ae | 950 | listnode_delete(zif->rtadv.AdvPrefixList, (void *)rprefix); |
951 | rtadv_prefix_free(rprefix); | |
952 | return 1; | |
953 | } else | |
954 | return 0; | |
718e3744 | 955 | } |
956 | ||
2a855763 DS |
957 | /* Add IPv6 prefixes learned from the kernel to the RA prefix list */ |
958 | void rtadv_add_prefix(struct zebra_if *zif, const struct prefix_ipv6 *p) | |
959 | { | |
960 | struct rtadv_prefix rp; | |
961 | ||
962 | rp.prefix = *p; | |
963 | apply_mask_ipv6(&rp.prefix); | |
964 | rp.AdvPrefixCreate = PREFIX_SRC_AUTO; | |
965 | rtadv_prefix_set(zif, &rp); | |
966 | } | |
967 | ||
968 | /* Delete IPv6 prefixes removed by the kernel from the RA prefix list */ | |
969 | void rtadv_delete_prefix(struct zebra_if *zif, const struct prefix *p) | |
970 | { | |
971 | struct rtadv_prefix rp; | |
972 | ||
973 | rp.prefix = *((struct prefix_ipv6 *)p); | |
974 | apply_mask_ipv6(&rp.prefix); | |
975 | rp.AdvPrefixCreate = PREFIX_SRC_AUTO; | |
976 | rtadv_prefix_reset(zif, &rp); | |
977 | } | |
978 | ||
d62a17ae | 979 | static void ipv6_nd_suppress_ra_set(struct interface *ifp, |
980 | ipv6_nd_suppress_ra_status status) | |
b6120505 | 981 | { |
d62a17ae | 982 | struct zebra_if *zif; |
983 | struct zebra_vrf *zvrf; | |
d62a17ae | 984 | |
985 | zif = ifp->info; | |
a36898e7 | 986 | zvrf = vrf_info_lookup(ifp->vrf_id); |
d62a17ae | 987 | |
988 | if (status == RA_SUPPRESS) { | |
989 | /* RA is currently enabled */ | |
990 | if (zif->rtadv.AdvSendAdvertisements) { | |
d7fc0e67 DS |
991 | rtadv_send_packet(rtadv_get_socket(zvrf), ifp, |
992 | RA_SUPPRESS); | |
d62a17ae | 993 | zif->rtadv.AdvSendAdvertisements = 0; |
994 | zif->rtadv.AdvIntervalTimer = 0; | |
df9c8c57 | 995 | zvrf->rtadv.adv_if_count--; |
d62a17ae | 996 | |
9245fe61 | 997 | if_leave_all_router(rtadv_get_socket(zvrf), ifp); |
d62a17ae | 998 | |
df9c8c57 PG |
999 | if (zvrf->rtadv.adv_if_count == 0) |
1000 | rtadv_event(zvrf, RTADV_STOP, 0); | |
d62a17ae | 1001 | } |
1002 | } else { | |
1003 | if (!zif->rtadv.AdvSendAdvertisements) { | |
1004 | zif->rtadv.AdvSendAdvertisements = 1; | |
1005 | zif->rtadv.AdvIntervalTimer = 0; | |
df9c8c57 | 1006 | zvrf->rtadv.adv_if_count++; |
d62a17ae | 1007 | |
adee8f21 DS |
1008 | if ((zif->rtadv.MaxRtrAdvInterval >= 1000) |
1009 | && zif->rtadv.UseFastRexmit) { | |
1010 | /* | |
1011 | * Enable Fast RA only when RA interval is in | |
1012 | * secs and Fast RA retransmit is enabled | |
1013 | */ | |
d62a17ae | 1014 | zif->rtadv.inFastRexmit = 1; |
1015 | zif->rtadv.NumFastReXmitsRemain = | |
1016 | RTADV_NUM_FAST_REXMITS; | |
1017 | } | |
1018 | ||
9245fe61 | 1019 | if_join_all_router(rtadv_get_socket(zvrf), ifp); |
d62a17ae | 1020 | |
df9c8c57 PG |
1021 | if (zvrf->rtadv.adv_if_count == 1) |
1022 | rtadv_event(zvrf, RTADV_START, | |
9245fe61 | 1023 | rtadv_get_socket(zvrf)); |
d62a17ae | 1024 | } |
1025 | } | |
b6120505 DW |
1026 | } |
1027 | ||
4a04e5f7 | 1028 | /* |
1029 | * Handle client (BGP) message to enable or disable IPv6 RA on an interface. | |
1030 | * Note that while the client could request RA on an interface on which the | |
1031 | * operator has not enabled RA, RA won't be disabled upon client request | |
5c81b96a | 1032 | * if the operator has explicitly enabled RA. The enable request can also |
1033 | * specify a RA interval (in seconds). | |
4a04e5f7 | 1034 | */ |
1002497a | 1035 | static void zebra_interface_radv_set(ZAPI_HANDLER_ARGS, int enable) |
4a04e5f7 | 1036 | { |
d62a17ae | 1037 | struct stream *s; |
ec93aa12 | 1038 | ifindex_t ifindex; |
d62a17ae | 1039 | struct interface *ifp; |
1040 | struct zebra_if *zif; | |
40441c3d | 1041 | int ra_interval_rxd; |
d62a17ae | 1042 | |
1002497a | 1043 | s = msg; |
d62a17ae | 1044 | |
1045 | /* Get interface index and RA interval. */ | |
ec93aa12 | 1046 | STREAM_GETL(s, ifindex); |
40441c3d QY |
1047 | STREAM_GETL(s, ra_interval_rxd); |
1048 | ||
1049 | if (ra_interval_rxd < 0) { | |
1050 | zlog_warn( | |
1051 | "Requested RA interval %d is garbage; ignoring request", | |
1052 | ra_interval_rxd); | |
1053 | return; | |
1054 | } | |
1055 | ||
1056 | unsigned int ra_interval = ra_interval_rxd; | |
d62a17ae | 1057 | |
1058 | if (IS_ZEBRA_DEBUG_EVENT) | |
40441c3d | 1059 | zlog_debug("%u: IF %u RA %s from client %s, interval %ums", |
1002497a QY |
1060 | zvrf_id(zvrf), ifindex, |
1061 | enable ? "enable" : "disable", | |
d62a17ae | 1062 | zebra_route_string(client->proto), ra_interval); |
1063 | ||
1064 | /* Locate interface and check VRF match. */ | |
df9c8c57 | 1065 | ifp = if_lookup_by_index(ifindex, zvrf->vrf->vrf_id); |
d62a17ae | 1066 | if (!ifp) { |
e914ccbe | 1067 | flog_warn(EC_ZEBRA_UNKNOWN_INTERFACE, |
9df414fe | 1068 | "%u: IF %u RA %s client %s - interface unknown", |
1002497a | 1069 | zvrf_id(zvrf), ifindex, enable ? "enable" : "disable", |
d62a17ae | 1070 | zebra_route_string(client->proto)); |
1071 | return; | |
1072 | } | |
a36898e7 | 1073 | if (ifp->vrf_id != zvrf_id(zvrf)) { |
9df414fe QY |
1074 | zlog_debug( |
1075 | "%u: IF %u RA %s client %s - VRF mismatch, IF VRF %u", | |
1076 | zvrf_id(zvrf), ifindex, enable ? "enable" : "disable", | |
a36898e7 | 1077 | zebra_route_string(client->proto), ifp->vrf_id); |
d62a17ae | 1078 | return; |
1079 | } | |
1080 | ||
1081 | zif = ifp->info; | |
1002497a | 1082 | if (enable) { |
3ea48364 | 1083 | SET_FLAG(zif->rtadv.ra_configured, BGP_RA_CONFIGURED); |
d62a17ae | 1084 | ipv6_nd_suppress_ra_set(ifp, RA_ENABLE); |
1085 | if (ra_interval | |
40441c3d | 1086 | && (ra_interval * 1000) < (unsigned int) zif->rtadv.MaxRtrAdvInterval |
996c9314 LB |
1087 | && !CHECK_FLAG(zif->rtadv.ra_configured, |
1088 | VTY_RA_INTERVAL_CONFIGURED)) | |
d62a17ae | 1089 | zif->rtadv.MaxRtrAdvInterval = ra_interval * 1000; |
1090 | } else { | |
3ea48364 DS |
1091 | UNSET_FLAG(zif->rtadv.ra_configured, BGP_RA_CONFIGURED); |
1092 | if (!CHECK_FLAG(zif->rtadv.ra_configured, | |
1093 | VTY_RA_INTERVAL_CONFIGURED)) | |
d62a17ae | 1094 | zif->rtadv.MaxRtrAdvInterval = |
1095 | RTADV_MAX_RTR_ADV_INTERVAL; | |
3ea48364 | 1096 | if (!CHECK_FLAG(zif->rtadv.ra_configured, VTY_RA_CONFIGURED)) |
d62a17ae | 1097 | ipv6_nd_suppress_ra_set(ifp, RA_SUPPRESS); |
d62a17ae | 1098 | } |
ec93aa12 DS |
1099 | stream_failure: |
1100 | return; | |
4a04e5f7 | 1101 | } |
1102 | ||
d7fc0e67 DS |
1103 | /* |
1104 | * send router lifetime value of zero in RAs on this interface since we're | |
1105 | * ceasing to advertise and want to let our neighbors know. | |
1106 | * RFC 4861 secion 6.2.5 | |
1107 | */ | |
1108 | void rtadv_stop_ra(struct interface *ifp) | |
1109 | { | |
1110 | struct zebra_if *zif; | |
1111 | struct zebra_vrf *zvrf; | |
1112 | ||
1113 | zif = ifp->info; | |
1114 | zvrf = vrf_info_lookup(ifp->vrf_id); | |
1115 | ||
1116 | if (zif->rtadv.AdvSendAdvertisements) | |
1117 | rtadv_send_packet(rtadv_get_socket(zvrf), ifp, RA_SUPPRESS); | |
1118 | } | |
1119 | ||
1120 | /* | |
1121 | * send router lifetime value of zero in RAs on all interfaces since we're | |
1122 | * ceasing to advertise globally and want to let all of our neighbors know | |
1123 | * RFC 4861 secion 6.2.5 | |
1124 | */ | |
1125 | void rtadv_stop_ra_all(void) | |
1126 | { | |
1127 | struct vrf *vrf; | |
1128 | struct interface *ifp; | |
1129 | ||
1130 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) | |
1131 | FOR_ALL_INTERFACES (vrf, ifp) | |
1132 | rtadv_stop_ra(ifp); | |
1133 | } | |
1134 | ||
89f4e507 QY |
1135 | void zebra_interface_radv_disable(ZAPI_HANDLER_ARGS) |
1136 | { | |
1002497a | 1137 | zebra_interface_radv_set(client, hdr, msg, zvrf, 0); |
89f4e507 | 1138 | } |
89f4e507 QY |
1139 | void zebra_interface_radv_enable(ZAPI_HANDLER_ARGS) |
1140 | { | |
1002497a | 1141 | zebra_interface_radv_set(client, hdr, msg, zvrf, 1); |
89f4e507 QY |
1142 | } |
1143 | ||
adee8f21 DS |
1144 | DEFUN (ipv6_nd_ra_fast_retrans, |
1145 | ipv6_nd_ra_fast_retrans_cmd, | |
1146 | "ipv6 nd ra-fast-retrans", | |
1147 | "Interface IPv6 config commands\n" | |
1148 | "Neighbor discovery\n" | |
1149 | "Fast retransmit of RA packets\n") | |
1150 | { | |
1151 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1152 | struct zebra_if *zif = ifp->info; | |
1153 | ||
1154 | if (if_is_loopback(ifp) | |
1155 | || CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK)) { | |
1156 | vty_out(vty, | |
1157 | "Cannot configure IPv6 Router Advertisements on this interface\n"); | |
1158 | return CMD_WARNING_CONFIG_FAILED; | |
1159 | } | |
1160 | ||
1161 | zif->rtadv.UseFastRexmit = true; | |
1162 | ||
1163 | return CMD_SUCCESS; | |
1164 | } | |
1165 | ||
1166 | DEFUN (no_ipv6_nd_ra_fast_retrans, | |
1167 | no_ipv6_nd_ra_fast_retrans_cmd, | |
1168 | "no ipv6 nd ra-fast-retrans", | |
1169 | NO_STR | |
1170 | "Interface IPv6 config commands\n" | |
1171 | "Neighbor discovery\n" | |
1172 | "Fast retransmit of RA packets\n") | |
1173 | { | |
1174 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1175 | struct zebra_if *zif = ifp->info; | |
1176 | ||
1177 | if (if_is_loopback(ifp) | |
1178 | || CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK)) { | |
1179 | vty_out(vty, | |
1180 | "Cannot configure IPv6 Router Advertisements on this interface\n"); | |
1181 | return CMD_WARNING_CONFIG_FAILED; | |
1182 | } | |
1183 | ||
1184 | zif->rtadv.UseFastRexmit = false; | |
1185 | ||
1186 | return CMD_SUCCESS; | |
1187 | } | |
1188 | ||
718e3744 | 1189 | DEFUN (ipv6_nd_suppress_ra, |
1190 | ipv6_nd_suppress_ra_cmd, | |
1191 | "ipv6 nd suppress-ra", | |
3e31cded | 1192 | "Interface IPv6 config commands\n" |
718e3744 | 1193 | "Neighbor discovery\n" |
1194 | "Suppress Router Advertisement\n") | |
1195 | { | |
d62a17ae | 1196 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1197 | struct zebra_if *zif = ifp->info; | |
1198 | ||
1199 | if (if_is_loopback(ifp) | |
1200 | || CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK)) { | |
1201 | vty_out(vty, | |
1202 | "Cannot configure IPv6 Router Advertisements on this interface\n"); | |
1203 | return CMD_WARNING_CONFIG_FAILED; | |
1204 | } | |
1205 | ||
3ea48364 DS |
1206 | if (!CHECK_FLAG(zif->rtadv.ra_configured, BGP_RA_CONFIGURED)) |
1207 | ipv6_nd_suppress_ra_set(ifp, RA_SUPPRESS); | |
1208 | ||
1209 | UNSET_FLAG(zif->rtadv.ra_configured, VTY_RA_CONFIGURED); | |
d62a17ae | 1210 | return CMD_SUCCESS; |
718e3744 | 1211 | } |
1212 | ||
718e3744 | 1213 | DEFUN (no_ipv6_nd_suppress_ra, |
1214 | no_ipv6_nd_suppress_ra_cmd, | |
1215 | "no ipv6 nd suppress-ra", | |
1216 | NO_STR | |
3e31cded | 1217 | "Interface IPv6 config commands\n" |
718e3744 | 1218 | "Neighbor discovery\n" |
1219 | "Suppress Router Advertisement\n") | |
1220 | { | |
d62a17ae | 1221 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1222 | struct zebra_if *zif = ifp->info; | |
1223 | ||
1224 | if (if_is_loopback(ifp) | |
1225 | || CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK)) { | |
1226 | vty_out(vty, | |
1227 | "Cannot configure IPv6 Router Advertisements on this interface\n"); | |
1228 | return CMD_WARNING_CONFIG_FAILED; | |
1229 | } | |
1230 | ||
1231 | ipv6_nd_suppress_ra_set(ifp, RA_ENABLE); | |
3ea48364 | 1232 | SET_FLAG(zif->rtadv.ra_configured, VTY_RA_CONFIGURED); |
d62a17ae | 1233 | return CMD_SUCCESS; |
718e3744 | 1234 | } |
1235 | ||
7cee1bb1 | 1236 | DEFUN (ipv6_nd_ra_interval_msec, |
1237 | ipv6_nd_ra_interval_msec_cmd, | |
6147e2c6 | 1238 | "ipv6 nd ra-interval msec (70-1800000)", |
7cee1bb1 | 1239 | "Interface IPv6 config commands\n" |
1240 | "Neighbor discovery\n" | |
1241 | "Router Advertisement interval\n" | |
3a2d747c | 1242 | "Router Advertisement interval in milliseconds\n" |
7cee1bb1 | 1243 | "Router Advertisement interval in milliseconds\n") |
1244 | { | |
d62a17ae | 1245 | int idx_number = 4; |
1246 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1247 | unsigned interval; | |
1248 | struct zebra_if *zif = ifp->info; | |
df9c8c57 PG |
1249 | struct zebra_vrf *zvrf; |
1250 | ||
a36898e7 | 1251 | zvrf = vrf_info_lookup(ifp->vrf_id); |
d62a17ae | 1252 | |
d62a17ae | 1253 | interval = strtoul(argv[idx_number]->arg, NULL, 10); |
1254 | if ((zif->rtadv.AdvDefaultLifetime != -1 | |
1255 | && interval > (unsigned)zif->rtadv.AdvDefaultLifetime * 1000)) { | |
1256 | vty_out(vty, | |
1257 | "This ra-interval would conflict with configured ra-lifetime!\n"); | |
1258 | return CMD_WARNING_CONFIG_FAILED; | |
1259 | } | |
1260 | ||
1261 | if (zif->rtadv.MaxRtrAdvInterval % 1000) | |
df9c8c57 | 1262 | zvrf->rtadv.adv_msec_if_count--; |
d62a17ae | 1263 | |
1264 | if (interval % 1000) | |
df9c8c57 | 1265 | zvrf->rtadv.adv_msec_if_count++; |
d62a17ae | 1266 | |
3ea48364 | 1267 | SET_FLAG(zif->rtadv.ra_configured, VTY_RA_INTERVAL_CONFIGURED); |
d62a17ae | 1268 | zif->rtadv.MaxRtrAdvInterval = interval; |
1269 | zif->rtadv.MinRtrAdvInterval = 0.33 * interval; | |
1270 | zif->rtadv.AdvIntervalTimer = 0; | |
1271 | ||
1272 | return CMD_SUCCESS; | |
7cee1bb1 | 1273 | } |
1274 | ||
718e3744 | 1275 | DEFUN (ipv6_nd_ra_interval, |
1276 | ipv6_nd_ra_interval_cmd, | |
6147e2c6 | 1277 | "ipv6 nd ra-interval (1-1800)", |
3e31cded | 1278 | "Interface IPv6 config commands\n" |
718e3744 | 1279 | "Neighbor discovery\n" |
1280 | "Router Advertisement interval\n" | |
1281 | "Router Advertisement interval in seconds\n") | |
1282 | { | |
d62a17ae | 1283 | int idx_number = 3; |
1284 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1285 | unsigned interval; | |
1286 | struct zebra_if *zif = ifp->info; | |
df9c8c57 PG |
1287 | struct zebra_vrf *zvrf; |
1288 | ||
a36898e7 | 1289 | zvrf = vrf_info_lookup(ifp->vrf_id); |
d62a17ae | 1290 | |
d62a17ae | 1291 | interval = strtoul(argv[idx_number]->arg, NULL, 10); |
1292 | if ((zif->rtadv.AdvDefaultLifetime != -1 | |
1293 | && interval > (unsigned)zif->rtadv.AdvDefaultLifetime)) { | |
1294 | vty_out(vty, | |
1295 | "This ra-interval would conflict with configured ra-lifetime!\n"); | |
1296 | return CMD_WARNING_CONFIG_FAILED; | |
1297 | } | |
1298 | ||
1299 | if (zif->rtadv.MaxRtrAdvInterval % 1000) | |
df9c8c57 | 1300 | zvrf->rtadv.adv_msec_if_count--; |
d62a17ae | 1301 | |
1302 | /* convert to milliseconds */ | |
1303 | interval = interval * 1000; | |
1304 | ||
3ea48364 | 1305 | SET_FLAG(zif->rtadv.ra_configured, VTY_RA_INTERVAL_CONFIGURED); |
d62a17ae | 1306 | zif->rtadv.MaxRtrAdvInterval = interval; |
1307 | zif->rtadv.MinRtrAdvInterval = 0.33 * interval; | |
1308 | zif->rtadv.AdvIntervalTimer = 0; | |
1309 | ||
1310 | return CMD_SUCCESS; | |
718e3744 | 1311 | } |
1312 | ||
1313 | DEFUN (no_ipv6_nd_ra_interval, | |
1314 | no_ipv6_nd_ra_interval_cmd, | |
34ccea1e | 1315 | "no ipv6 nd ra-interval [<(1-1800)|msec (1-1800000)>]", |
718e3744 | 1316 | NO_STR |
3e31cded | 1317 | "Interface IPv6 config commands\n" |
718e3744 | 1318 | "Neighbor discovery\n" |
34ccea1e QY |
1319 | "Router Advertisement interval\n" |
1320 | "Router Advertisement interval in seconds\n" | |
1321 | "Specify millisecond router advertisement interval\n" | |
1322 | "Router Advertisement interval in milliseconds\n") | |
718e3744 | 1323 | { |
d62a17ae | 1324 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1325 | struct zebra_if *zif = ifp->info; | |
df9c8c57 PG |
1326 | struct zebra_vrf *zvrf = NULL; |
1327 | ||
a36898e7 | 1328 | zvrf = vrf_info_lookup(ifp->vrf_id); |
d62a17ae | 1329 | |
1330 | if (zif->rtadv.MaxRtrAdvInterval % 1000) | |
df9c8c57 | 1331 | zvrf->rtadv.adv_msec_if_count--; |
d62a17ae | 1332 | |
3ea48364 DS |
1333 | UNSET_FLAG(zif->rtadv.ra_configured, VTY_RA_INTERVAL_CONFIGURED); |
1334 | ||
1335 | if (CHECK_FLAG(zif->rtadv.ra_configured, BGP_RA_CONFIGURED)) | |
1336 | zif->rtadv.MaxRtrAdvInterval = 10000; | |
1337 | else | |
1338 | zif->rtadv.MaxRtrAdvInterval = RTADV_MAX_RTR_ADV_INTERVAL; | |
1339 | ||
d62a17ae | 1340 | zif->rtadv.AdvIntervalTimer = zif->rtadv.MaxRtrAdvInterval; |
3ea48364 | 1341 | zif->rtadv.MinRtrAdvInterval = RTADV_MIN_RTR_ADV_INTERVAL; |
d62a17ae | 1342 | |
1343 | return CMD_SUCCESS; | |
718e3744 | 1344 | } |
1345 | ||
1346 | DEFUN (ipv6_nd_ra_lifetime, | |
1347 | ipv6_nd_ra_lifetime_cmd, | |
6147e2c6 | 1348 | "ipv6 nd ra-lifetime (0-9000)", |
3e31cded | 1349 | "Interface IPv6 config commands\n" |
718e3744 | 1350 | "Neighbor discovery\n" |
1351 | "Router lifetime\n" | |
4afa50b3 | 1352 | "Router lifetime in seconds (0 stands for a non-default gw)\n") |
718e3744 | 1353 | { |
d62a17ae | 1354 | int idx_number = 3; |
1355 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1356 | struct zebra_if *zif = ifp->info; | |
1357 | int lifetime; | |
1358 | ||
1359 | lifetime = strtoul(argv[idx_number]->arg, NULL, 10); | |
1360 | ||
1361 | /* The value to be placed in the Router Lifetime field | |
1362 | * of Router Advertisements sent from the interface, | |
1363 | * in seconds. MUST be either zero or between | |
1364 | * MaxRtrAdvInterval and 9000 seconds. -- RFC4861, 6.2.1 */ | |
1365 | if ((lifetime != 0 && lifetime * 1000 < zif->rtadv.MaxRtrAdvInterval)) { | |
1366 | vty_out(vty, | |
1367 | "This ra-lifetime would conflict with configured ra-interval\n"); | |
1368 | return CMD_WARNING_CONFIG_FAILED; | |
1369 | } | |
1370 | ||
1371 | zif->rtadv.AdvDefaultLifetime = lifetime; | |
1372 | ||
1373 | return CMD_SUCCESS; | |
718e3744 | 1374 | } |
1375 | ||
1376 | DEFUN (no_ipv6_nd_ra_lifetime, | |
1377 | no_ipv6_nd_ra_lifetime_cmd, | |
34ccea1e | 1378 | "no ipv6 nd ra-lifetime [(0-9000)]", |
718e3744 | 1379 | NO_STR |
3e31cded | 1380 | "Interface IPv6 config commands\n" |
718e3744 | 1381 | "Neighbor discovery\n" |
34ccea1e QY |
1382 | "Router lifetime\n" |
1383 | "Router lifetime in seconds (0 stands for a non-default gw)\n") | |
718e3744 | 1384 | { |
d62a17ae | 1385 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1386 | struct zebra_if *zif = ifp->info; | |
718e3744 | 1387 | |
d62a17ae | 1388 | zif->rtadv.AdvDefaultLifetime = -1; |
718e3744 | 1389 | |
d62a17ae | 1390 | return CMD_SUCCESS; |
718e3744 | 1391 | } |
1392 | ||
1393 | DEFUN (ipv6_nd_reachable_time, | |
1394 | ipv6_nd_reachable_time_cmd, | |
6147e2c6 | 1395 | "ipv6 nd reachable-time (1-3600000)", |
3e31cded | 1396 | "Interface IPv6 config commands\n" |
718e3744 | 1397 | "Neighbor discovery\n" |
1398 | "Reachable time\n" | |
1399 | "Reachable time in milliseconds\n") | |
1400 | { | |
d62a17ae | 1401 | int idx_number = 3; |
1402 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1403 | struct zebra_if *zif = ifp->info; | |
1404 | zif->rtadv.AdvReachableTime = strtoul(argv[idx_number]->arg, NULL, 10); | |
1405 | return CMD_SUCCESS; | |
718e3744 | 1406 | } |
1407 | ||
1408 | DEFUN (no_ipv6_nd_reachable_time, | |
1409 | no_ipv6_nd_reachable_time_cmd, | |
34ccea1e | 1410 | "no ipv6 nd reachable-time [(1-3600000)]", |
718e3744 | 1411 | NO_STR |
3e31cded | 1412 | "Interface IPv6 config commands\n" |
718e3744 | 1413 | "Neighbor discovery\n" |
34ccea1e QY |
1414 | "Reachable time\n" |
1415 | "Reachable time in milliseconds\n") | |
718e3744 | 1416 | { |
d62a17ae | 1417 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1418 | struct zebra_if *zif = ifp->info; | |
718e3744 | 1419 | |
d62a17ae | 1420 | zif->rtadv.AdvReachableTime = 0; |
718e3744 | 1421 | |
d62a17ae | 1422 | return CMD_SUCCESS; |
718e3744 | 1423 | } |
1424 | ||
7cee1bb1 | 1425 | DEFUN (ipv6_nd_homeagent_preference, |
1426 | ipv6_nd_homeagent_preference_cmd, | |
6147e2c6 | 1427 | "ipv6 nd home-agent-preference (0-65535)", |
7cee1bb1 | 1428 | "Interface IPv6 config commands\n" |
1429 | "Neighbor discovery\n" | |
1430 | "Home Agent preference\n" | |
4afa50b3 | 1431 | "preference value (default is 0, least preferred)\n") |
7cee1bb1 | 1432 | { |
d62a17ae | 1433 | int idx_number = 3; |
1434 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1435 | struct zebra_if *zif = ifp->info; | |
1436 | zif->rtadv.HomeAgentPreference = | |
1437 | strtoul(argv[idx_number]->arg, NULL, 10); | |
1438 | return CMD_SUCCESS; | |
7cee1bb1 | 1439 | } |
1440 | ||
1441 | DEFUN (no_ipv6_nd_homeagent_preference, | |
1442 | no_ipv6_nd_homeagent_preference_cmd, | |
34ccea1e | 1443 | "no ipv6 nd home-agent-preference [(0-65535)]", |
7cee1bb1 | 1444 | NO_STR |
1445 | "Interface IPv6 config commands\n" | |
1446 | "Neighbor discovery\n" | |
34ccea1e QY |
1447 | "Home Agent preference\n" |
1448 | "preference value (default is 0, least preferred)\n") | |
7cee1bb1 | 1449 | { |
d62a17ae | 1450 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1451 | struct zebra_if *zif = ifp->info; | |
7cee1bb1 | 1452 | |
d62a17ae | 1453 | zif->rtadv.HomeAgentPreference = 0; |
7cee1bb1 | 1454 | |
d62a17ae | 1455 | return CMD_SUCCESS; |
7cee1bb1 | 1456 | } |
1457 | ||
1458 | DEFUN (ipv6_nd_homeagent_lifetime, | |
1459 | ipv6_nd_homeagent_lifetime_cmd, | |
6147e2c6 | 1460 | "ipv6 nd home-agent-lifetime (0-65520)", |
7cee1bb1 | 1461 | "Interface IPv6 config commands\n" |
1462 | "Neighbor discovery\n" | |
1463 | "Home Agent lifetime\n" | |
4afa50b3 | 1464 | "Home Agent lifetime in seconds (0 to track ra-lifetime)\n") |
7cee1bb1 | 1465 | { |
d62a17ae | 1466 | int idx_number = 3; |
1467 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1468 | struct zebra_if *zif = ifp->info; | |
1469 | zif->rtadv.HomeAgentLifetime = strtoul(argv[idx_number]->arg, NULL, 10); | |
1470 | return CMD_SUCCESS; | |
7cee1bb1 | 1471 | } |
1472 | ||
1473 | DEFUN (no_ipv6_nd_homeagent_lifetime, | |
1474 | no_ipv6_nd_homeagent_lifetime_cmd, | |
34ccea1e | 1475 | "no ipv6 nd home-agent-lifetime [(0-65520)]", |
7cee1bb1 | 1476 | NO_STR |
1477 | "Interface IPv6 config commands\n" | |
1478 | "Neighbor discovery\n" | |
34ccea1e QY |
1479 | "Home Agent lifetime\n" |
1480 | "Home Agent lifetime in seconds (0 to track ra-lifetime)\n") | |
7cee1bb1 | 1481 | { |
d62a17ae | 1482 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1483 | struct zebra_if *zif = ifp->info; | |
7cee1bb1 | 1484 | |
d62a17ae | 1485 | zif->rtadv.HomeAgentLifetime = -1; |
7cee1bb1 | 1486 | |
d62a17ae | 1487 | return CMD_SUCCESS; |
7cee1bb1 | 1488 | } |
1489 | ||
718e3744 | 1490 | DEFUN (ipv6_nd_managed_config_flag, |
1491 | ipv6_nd_managed_config_flag_cmd, | |
1492 | "ipv6 nd managed-config-flag", | |
3e31cded | 1493 | "Interface IPv6 config commands\n" |
718e3744 | 1494 | "Neighbor discovery\n" |
1495 | "Managed address configuration flag\n") | |
1496 | { | |
d62a17ae | 1497 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1498 | struct zebra_if *zif = ifp->info; | |
718e3744 | 1499 | |
d62a17ae | 1500 | zif->rtadv.AdvManagedFlag = 1; |
718e3744 | 1501 | |
d62a17ae | 1502 | return CMD_SUCCESS; |
718e3744 | 1503 | } |
1504 | ||
1505 | DEFUN (no_ipv6_nd_managed_config_flag, | |
1506 | no_ipv6_nd_managed_config_flag_cmd, | |
1507 | "no ipv6 nd managed-config-flag", | |
1508 | NO_STR | |
3e31cded | 1509 | "Interface IPv6 config commands\n" |
718e3744 | 1510 | "Neighbor discovery\n" |
1511 | "Managed address configuration flag\n") | |
1512 | { | |
d62a17ae | 1513 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1514 | struct zebra_if *zif = ifp->info; | |
718e3744 | 1515 | |
d62a17ae | 1516 | zif->rtadv.AdvManagedFlag = 0; |
718e3744 | 1517 | |
d62a17ae | 1518 | return CMD_SUCCESS; |
718e3744 | 1519 | } |
1520 | ||
7cee1bb1 | 1521 | DEFUN (ipv6_nd_homeagent_config_flag, |
1522 | ipv6_nd_homeagent_config_flag_cmd, | |
1523 | "ipv6 nd home-agent-config-flag", | |
1524 | "Interface IPv6 config commands\n" | |
1525 | "Neighbor discovery\n" | |
1526 | "Home Agent configuration flag\n") | |
1527 | { | |
d62a17ae | 1528 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1529 | struct zebra_if *zif = ifp->info; | |
7cee1bb1 | 1530 | |
d62a17ae | 1531 | zif->rtadv.AdvHomeAgentFlag = 1; |
7cee1bb1 | 1532 | |
d62a17ae | 1533 | return CMD_SUCCESS; |
7cee1bb1 | 1534 | } |
1535 | ||
1536 | DEFUN (no_ipv6_nd_homeagent_config_flag, | |
1537 | no_ipv6_nd_homeagent_config_flag_cmd, | |
1538 | "no ipv6 nd home-agent-config-flag", | |
1539 | NO_STR | |
1540 | "Interface IPv6 config commands\n" | |
1541 | "Neighbor discovery\n" | |
1542 | "Home Agent configuration flag\n") | |
1543 | { | |
d62a17ae | 1544 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1545 | struct zebra_if *zif = ifp->info; | |
7cee1bb1 | 1546 | |
d62a17ae | 1547 | zif->rtadv.AdvHomeAgentFlag = 0; |
7cee1bb1 | 1548 | |
d62a17ae | 1549 | return CMD_SUCCESS; |
7cee1bb1 | 1550 | } |
1551 | ||
1552 | DEFUN (ipv6_nd_adv_interval_config_option, | |
1553 | ipv6_nd_adv_interval_config_option_cmd, | |
1554 | "ipv6 nd adv-interval-option", | |
1555 | "Interface IPv6 config commands\n" | |
1556 | "Neighbor discovery\n" | |
1557 | "Advertisement Interval Option\n") | |
1558 | { | |
d62a17ae | 1559 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1560 | struct zebra_if *zif = ifp->info; | |
7cee1bb1 | 1561 | |
d62a17ae | 1562 | zif->rtadv.AdvIntervalOption = 1; |
7cee1bb1 | 1563 | |
d62a17ae | 1564 | return CMD_SUCCESS; |
7cee1bb1 | 1565 | } |
1566 | ||
1567 | DEFUN (no_ipv6_nd_adv_interval_config_option, | |
1568 | no_ipv6_nd_adv_interval_config_option_cmd, | |
1569 | "no ipv6 nd adv-interval-option", | |
1570 | NO_STR | |
1571 | "Interface IPv6 config commands\n" | |
1572 | "Neighbor discovery\n" | |
1573 | "Advertisement Interval Option\n") | |
1574 | { | |
d62a17ae | 1575 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1576 | struct zebra_if *zif = ifp->info; | |
7cee1bb1 | 1577 | |
d62a17ae | 1578 | zif->rtadv.AdvIntervalOption = 0; |
7cee1bb1 | 1579 | |
d62a17ae | 1580 | return CMD_SUCCESS; |
7cee1bb1 | 1581 | } |
1582 | ||
718e3744 | 1583 | DEFUN (ipv6_nd_other_config_flag, |
1584 | ipv6_nd_other_config_flag_cmd, | |
1585 | "ipv6 nd other-config-flag", | |
3e31cded | 1586 | "Interface IPv6 config commands\n" |
718e3744 | 1587 | "Neighbor discovery\n" |
1588 | "Other statefull configuration flag\n") | |
1589 | { | |
d62a17ae | 1590 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1591 | struct zebra_if *zif = ifp->info; | |
718e3744 | 1592 | |
d62a17ae | 1593 | zif->rtadv.AdvOtherConfigFlag = 1; |
718e3744 | 1594 | |
d62a17ae | 1595 | return CMD_SUCCESS; |
718e3744 | 1596 | } |
1597 | ||
1598 | DEFUN (no_ipv6_nd_other_config_flag, | |
1599 | no_ipv6_nd_other_config_flag_cmd, | |
1600 | "no ipv6 nd other-config-flag", | |
1601 | NO_STR | |
3e31cded | 1602 | "Interface IPv6 config commands\n" |
718e3744 | 1603 | "Neighbor discovery\n" |
1604 | "Other statefull configuration flag\n") | |
1605 | { | |
d62a17ae | 1606 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1607 | struct zebra_if *zif = ifp->info; | |
718e3744 | 1608 | |
d62a17ae | 1609 | zif->rtadv.AdvOtherConfigFlag = 0; |
718e3744 | 1610 | |
d62a17ae | 1611 | return CMD_SUCCESS; |
718e3744 | 1612 | } |
1613 | ||
3e31cded | 1614 | DEFUN (ipv6_nd_prefix, |
1615 | ipv6_nd_prefix_cmd, | |
34ccea1e | 1616 | "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 | 1617 | "Interface IPv6 config commands\n" |
718e3744 | 1618 | "Neighbor discovery\n" |
1619 | "Prefix information\n" | |
1620 | "IPv6 prefix\n" | |
1621 | "Valid lifetime in seconds\n" | |
3e31cded | 1622 | "Infinite valid lifetime\n" |
718e3744 | 1623 | "Preferred lifetime in seconds\n" |
3e31cded | 1624 | "Infinite preferred lifetime\n" |
34ccea1e | 1625 | "Set Router Address flag\n" |
3e31cded | 1626 | "Do not use prefix for onlink determination\n" |
7cee1bb1 | 1627 | "Do not use prefix for autoconfiguration\n" |
34ccea1e QY |
1628 | "Do not use prefix for autoconfiguration\n" |
1629 | "Do not use prefix for onlink determination\n") | |
718e3744 | 1630 | { |
d62a17ae | 1631 | /* prelude */ |
1632 | char *prefix = argv[3]->arg; | |
9d303b37 DL |
1633 | int lifetimes = (argc > 4) && (argv[4]->type == RANGE_TKN |
1634 | || strmatch(argv[4]->text, "infinite")); | |
d62a17ae | 1635 | int routeropts = lifetimes ? argc > 6 : argc > 4; |
1636 | ||
1637 | int idx_routeropts = routeropts ? (lifetimes ? 6 : 4) : 0; | |
1638 | ||
1639 | char *lifetime = NULL, *preflifetime = NULL; | |
1640 | int routeraddr = 0, offlink = 0, noautoconf = 0; | |
1641 | if (lifetimes) { | |
1642 | lifetime = argv[4]->type == RANGE_TKN ? argv[4]->arg | |
1643 | : argv[4]->text; | |
1644 | preflifetime = argv[5]->type == RANGE_TKN ? argv[5]->arg | |
1645 | : argv[5]->text; | |
1646 | } | |
1647 | if (routeropts) { | |
1648 | routeraddr = | |
1649 | strmatch(argv[idx_routeropts]->text, "router-address"); | |
1650 | if (!routeraddr) { | |
1651 | offlink = (argc > idx_routeropts + 1 | |
1652 | || strmatch(argv[idx_routeropts]->text, | |
1653 | "off-link")); | |
1654 | noautoconf = (argc > idx_routeropts + 1 | |
1655 | || strmatch(argv[idx_routeropts]->text, | |
1656 | "no-autoconfig")); | |
1657 | } | |
1658 | } | |
1659 | ||
1660 | /* business */ | |
1661 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1662 | struct zebra_if *zebra_if = ifp->info; | |
1663 | int ret; | |
1664 | struct rtadv_prefix rp; | |
1665 | ||
1666 | ret = str2prefix_ipv6(prefix, &rp.prefix); | |
1667 | if (!ret) { | |
1668 | vty_out(vty, "Malformed IPv6 prefix\n"); | |
1669 | return CMD_WARNING_CONFIG_FAILED; | |
1670 | } | |
1671 | apply_mask_ipv6(&rp.prefix); /* RFC4861 4.6.2 */ | |
1672 | rp.AdvOnLinkFlag = !offlink; | |
1673 | rp.AdvAutonomousFlag = !noautoconf; | |
1674 | rp.AdvRouterAddressFlag = routeraddr; | |
1675 | rp.AdvValidLifetime = RTADV_VALID_LIFETIME; | |
1676 | rp.AdvPreferredLifetime = RTADV_PREFERRED_LIFETIME; | |
2a855763 | 1677 | rp.AdvPrefixCreate = PREFIX_SRC_MANUAL; |
d62a17ae | 1678 | |
1679 | if (lifetimes) { | |
1680 | rp.AdvValidLifetime = strmatch(lifetime, "infinite") | |
1681 | ? UINT32_MAX | |
1682 | : strtoll(lifetime, NULL, 10); | |
1683 | rp.AdvPreferredLifetime = | |
1684 | strmatch(preflifetime, "infinite") | |
1685 | ? UINT32_MAX | |
1686 | : strtoll(preflifetime, NULL, 10); | |
1687 | if (rp.AdvPreferredLifetime > rp.AdvValidLifetime) { | |
1688 | vty_out(vty, "Invalid preferred lifetime\n"); | |
1689 | return CMD_WARNING_CONFIG_FAILED; | |
1690 | } | |
1691 | } | |
1692 | ||
1693 | rtadv_prefix_set(zebra_if, &rp); | |
1694 | ||
1695 | return CMD_SUCCESS; | |
718e3744 | 1696 | } |
1697 | ||
3e31cded | 1698 | DEFUN (no_ipv6_nd_prefix, |
1699 | no_ipv6_nd_prefix_cmd, | |
34ccea1e QY |
1700 | "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]>]", |
1701 | NO_STR | |
3e31cded | 1702 | "Interface IPv6 config commands\n" |
718e3744 | 1703 | "Neighbor discovery\n" |
1704 | "Prefix information\n" | |
34ccea1e QY |
1705 | "IPv6 prefix\n" |
1706 | "Valid lifetime in seconds\n" | |
1707 | "Infinite valid lifetime\n" | |
1708 | "Preferred lifetime in seconds\n" | |
1709 | "Infinite preferred lifetime\n" | |
1710 | "Set Router Address flag\n" | |
1711 | "Do not use prefix for onlink determination\n" | |
1712 | "Do not use prefix for autoconfiguration\n" | |
1713 | "Do not use prefix for autoconfiguration\n" | |
1714 | "Do not use prefix for onlink determination\n") | |
718e3744 | 1715 | { |
d62a17ae | 1716 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1717 | struct zebra_if *zebra_if = ifp->info; | |
1718 | int ret; | |
1719 | struct rtadv_prefix rp; | |
1720 | char *prefix = argv[4]->arg; | |
1721 | ||
1722 | ret = str2prefix_ipv6(prefix, &rp.prefix); | |
1723 | if (!ret) { | |
1724 | vty_out(vty, "Malformed IPv6 prefix\n"); | |
1725 | return CMD_WARNING_CONFIG_FAILED; | |
1726 | } | |
1727 | apply_mask_ipv6(&rp.prefix); /* RFC4861 4.6.2 */ | |
2a855763 | 1728 | rp.AdvPrefixCreate = PREFIX_SRC_MANUAL; |
d62a17ae | 1729 | |
1730 | ret = rtadv_prefix_reset(zebra_if, &rp); | |
1731 | if (!ret) { | |
1732 | vty_out(vty, "Non-existant IPv6 prefix\n"); | |
1733 | return CMD_WARNING_CONFIG_FAILED; | |
1734 | } | |
1735 | ||
1736 | return CMD_SUCCESS; | |
718e3744 | 1737 | } |
b60668d0 CC |
1738 | |
1739 | DEFUN (ipv6_nd_router_preference, | |
1740 | ipv6_nd_router_preference_cmd, | |
6147e2c6 | 1741 | "ipv6 nd router-preference <high|medium|low>", |
b60668d0 CC |
1742 | "Interface IPv6 config commands\n" |
1743 | "Neighbor discovery\n" | |
1744 | "Default router preference\n" | |
1745 | "High default router preference\n" | |
58f1b7cc DS |
1746 | "Medium default router preference (default)\n" |
1747 | "Low default router preference\n") | |
b60668d0 | 1748 | { |
d62a17ae | 1749 | int idx_high_medium_low = 3; |
1750 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1751 | struct zebra_if *zif = ifp->info; | |
1752 | int i = 0; | |
1753 | ||
1754 | while (0 != rtadv_pref_strs[i]) { | |
1755 | if (strncmp(argv[idx_high_medium_low]->arg, rtadv_pref_strs[i], | |
1756 | 1) | |
1757 | == 0) { | |
1758 | zif->rtadv.DefaultPreference = i; | |
1759 | return CMD_SUCCESS; | |
1760 | } | |
1761 | i++; | |
b60668d0 | 1762 | } |
b60668d0 | 1763 | |
d62a17ae | 1764 | return CMD_ERR_NO_MATCH; |
b60668d0 CC |
1765 | } |
1766 | ||
1767 | DEFUN (no_ipv6_nd_router_preference, | |
1768 | no_ipv6_nd_router_preference_cmd, | |
34ccea1e | 1769 | "no ipv6 nd router-preference [<high|medium|low>]", |
b60668d0 CC |
1770 | NO_STR |
1771 | "Interface IPv6 config commands\n" | |
1772 | "Neighbor discovery\n" | |
34ccea1e QY |
1773 | "Default router preference\n" |
1774 | "High default router preference\n" | |
1775 | "Medium default router preference (default)\n" | |
1776 | "Low default router preference\n") | |
b60668d0 | 1777 | { |
d62a17ae | 1778 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1779 | struct zebra_if *zif = ifp->info; | |
b60668d0 | 1780 | |
d62a17ae | 1781 | zif->rtadv.DefaultPreference = |
1782 | RTADV_PREF_MEDIUM; /* Default per RFC4191. */ | |
b60668d0 | 1783 | |
d62a17ae | 1784 | return CMD_SUCCESS; |
b60668d0 CC |
1785 | } |
1786 | ||
6ae93c05 DO |
1787 | DEFUN (ipv6_nd_mtu, |
1788 | ipv6_nd_mtu_cmd, | |
6147e2c6 | 1789 | "ipv6 nd mtu (1-65535)", |
6ae93c05 DO |
1790 | "Interface IPv6 config commands\n" |
1791 | "Neighbor discovery\n" | |
1792 | "Advertised MTU\n" | |
1793 | "MTU in bytes\n") | |
1794 | { | |
d62a17ae | 1795 | int idx_number = 3; |
1796 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1797 | struct zebra_if *zif = ifp->info; | |
1798 | zif->rtadv.AdvLinkMTU = strtoul(argv[idx_number]->arg, NULL, 10); | |
1799 | return CMD_SUCCESS; | |
6ae93c05 DO |
1800 | } |
1801 | ||
1802 | DEFUN (no_ipv6_nd_mtu, | |
1803 | no_ipv6_nd_mtu_cmd, | |
34ccea1e | 1804 | "no ipv6 nd mtu [(1-65535)]", |
6ae93c05 DO |
1805 | NO_STR |
1806 | "Interface IPv6 config commands\n" | |
1807 | "Neighbor discovery\n" | |
34ccea1e QY |
1808 | "Advertised MTU\n" |
1809 | "MTU in bytes\n") | |
6ae93c05 | 1810 | { |
d62a17ae | 1811 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1812 | struct zebra_if *zif = ifp->info; | |
1813 | zif->rtadv.AdvLinkMTU = 0; | |
1814 | return CMD_SUCCESS; | |
6ae93c05 DO |
1815 | } |
1816 | ||
3eb4fbb0 LS |
1817 | static struct rtadv_rdnss *rtadv_rdnss_new(void) |
1818 | { | |
1819 | return XCALLOC(MTYPE_RTADV_RDNSS, sizeof(struct rtadv_rdnss)); | |
1820 | } | |
1821 | ||
1822 | static void rtadv_rdnss_free(struct rtadv_rdnss *rdnss) | |
1823 | { | |
1824 | XFREE(MTYPE_RTADV_RDNSS, rdnss); | |
1825 | } | |
1826 | ||
1827 | static struct rtadv_rdnss *rtadv_rdnss_lookup(struct list *list, | |
1828 | struct rtadv_rdnss *rdnss) | |
1829 | { | |
1830 | struct listnode *node; | |
1831 | struct rtadv_rdnss *p; | |
1832 | ||
1833 | for (ALL_LIST_ELEMENTS_RO(list, node, p)) | |
1834 | if (IPV6_ADDR_SAME(&p->addr, &rdnss->addr)) | |
1835 | return p; | |
1836 | return NULL; | |
1837 | } | |
1838 | ||
1839 | static struct rtadv_rdnss *rtadv_rdnss_get(struct list *list, | |
1840 | struct rtadv_rdnss *rdnss) | |
1841 | { | |
1842 | struct rtadv_rdnss *p; | |
1843 | ||
1844 | p = rtadv_rdnss_lookup(list, rdnss); | |
1845 | if (p) | |
1846 | return p; | |
1847 | ||
1848 | p = rtadv_rdnss_new(); | |
1849 | memcpy(p, rdnss, sizeof(struct rtadv_rdnss)); | |
1850 | listnode_add(list, p); | |
1851 | ||
1852 | return p; | |
1853 | } | |
1854 | ||
1855 | static void rtadv_rdnss_set(struct zebra_if *zif, struct rtadv_rdnss *rdnss) | |
1856 | { | |
1857 | struct rtadv_rdnss *p; | |
1858 | ||
1859 | p = rtadv_rdnss_get(zif->rtadv.AdvRDNSSList, rdnss); | |
1860 | p->lifetime = rdnss->lifetime; | |
1861 | p->lifetime_set = rdnss->lifetime_set; | |
1862 | } | |
1863 | ||
1864 | static int rtadv_rdnss_reset(struct zebra_if *zif, struct rtadv_rdnss *rdnss) | |
1865 | { | |
1866 | struct rtadv_rdnss *p; | |
1867 | ||
1868 | p = rtadv_rdnss_lookup(zif->rtadv.AdvRDNSSList, rdnss); | |
1869 | if (p) { | |
1870 | listnode_delete(zif->rtadv.AdvRDNSSList, p); | |
1871 | rtadv_rdnss_free(p); | |
1872 | return 1; | |
1873 | } | |
1874 | ||
1875 | return 0; | |
1876 | } | |
1877 | ||
1878 | static struct rtadv_dnssl *rtadv_dnssl_new(void) | |
1879 | { | |
1880 | return XCALLOC(MTYPE_RTADV_DNSSL, sizeof(struct rtadv_dnssl)); | |
1881 | } | |
1882 | ||
1883 | static void rtadv_dnssl_free(struct rtadv_dnssl *dnssl) | |
1884 | { | |
1885 | XFREE(MTYPE_RTADV_DNSSL, dnssl); | |
1886 | } | |
1887 | ||
1888 | static struct rtadv_dnssl *rtadv_dnssl_lookup(struct list *list, | |
1889 | struct rtadv_dnssl *dnssl) | |
1890 | { | |
1891 | struct listnode *node; | |
1892 | struct rtadv_dnssl *p; | |
1893 | ||
1894 | for (ALL_LIST_ELEMENTS_RO(list, node, p)) | |
1895 | if (!strcasecmp(p->name, dnssl->name)) | |
1896 | return p; | |
1897 | return NULL; | |
1898 | } | |
1899 | ||
1900 | static struct rtadv_dnssl *rtadv_dnssl_get(struct list *list, | |
1901 | struct rtadv_dnssl *dnssl) | |
1902 | { | |
1903 | struct rtadv_dnssl *p; | |
1904 | ||
1905 | p = rtadv_dnssl_lookup(list, dnssl); | |
1906 | if (p) | |
1907 | return p; | |
1908 | ||
1909 | p = rtadv_dnssl_new(); | |
1910 | memcpy(p, dnssl, sizeof(struct rtadv_dnssl)); | |
1911 | listnode_add(list, p); | |
1912 | ||
1913 | return p; | |
1914 | } | |
1915 | ||
1916 | static void rtadv_dnssl_set(struct zebra_if *zif, struct rtadv_dnssl *dnssl) | |
1917 | { | |
1918 | struct rtadv_dnssl *p; | |
1919 | ||
1920 | p = rtadv_dnssl_get(zif->rtadv.AdvDNSSLList, dnssl); | |
1921 | memcpy(p, dnssl, sizeof(struct rtadv_dnssl)); | |
1922 | } | |
1923 | ||
1924 | static int rtadv_dnssl_reset(struct zebra_if *zif, struct rtadv_dnssl *dnssl) | |
1925 | { | |
1926 | struct rtadv_dnssl *p; | |
1927 | ||
1928 | p = rtadv_dnssl_lookup(zif->rtadv.AdvDNSSLList, dnssl); | |
1929 | if (p) { | |
1930 | listnode_delete(zif->rtadv.AdvDNSSLList, p); | |
1931 | rtadv_dnssl_free(p); | |
1932 | return 1; | |
1933 | } | |
1934 | ||
1935 | return 0; | |
1936 | } | |
1937 | ||
1938 | /* | |
1939 | * Convert dotted domain name (with or without trailing root zone dot) to | |
1940 | * sequence of length-prefixed labels, as described in [RFC1035 3.1]. Write up | |
1941 | * to strlen(in) + 2 octets to out. | |
1942 | * | |
1943 | * Returns the number of octets written to out or -1 if in does not constitute | |
1944 | * a valid domain name. | |
1945 | */ | |
1946 | static int rtadv_dnssl_encode(uint8_t *out, const char *in) | |
1947 | { | |
1948 | const char *label_start, *label_end; | |
1949 | size_t outp; | |
1950 | ||
1951 | outp = 0; | |
1952 | label_start = in; | |
1953 | ||
1954 | while (*label_start) { | |
1955 | size_t label_len; | |
1956 | ||
1957 | label_end = strchr(label_start, '.'); | |
1958 | if (label_end == NULL) | |
1959 | label_end = label_start + strlen(label_start); | |
1960 | ||
1961 | label_len = label_end - label_start; | |
1962 | if (label_len >= 64) | |
1963 | return -1; /* labels must be 63 octets or less */ | |
1964 | ||
1965 | out[outp++] = (uint8_t)label_len; | |
1966 | memcpy(out + outp, label_start, label_len); | |
1967 | outp += label_len; | |
1968 | label_start += label_len; | |
1969 | if (*label_start == '.') | |
1970 | label_start++; | |
1971 | } | |
1972 | ||
1973 | out[outp++] = '\0'; | |
1974 | return outp; | |
1975 | } | |
1976 | ||
1977 | DEFUN(ipv6_nd_rdnss, | |
1978 | ipv6_nd_rdnss_cmd, | |
1979 | "ipv6 nd rdnss X:X::X:X [<(0-4294967295)|infinite>]", | |
1980 | "Interface IPv6 config commands\n" | |
1981 | "Neighbor discovery\n" | |
1982 | "Recursive DNS server information\n" | |
1983 | "IPv6 address\n" | |
1984 | "Valid lifetime in seconds\n" | |
1985 | "Infinite valid lifetime\n") | |
1986 | { | |
1987 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1988 | struct zebra_if *zif = ifp->info; | |
844e9180 | 1989 | struct rtadv_rdnss rdnss = {}; |
3eb4fbb0 LS |
1990 | |
1991 | if (inet_pton(AF_INET6, argv[3]->arg, &rdnss.addr) != 1) { | |
1992 | vty_out(vty, "Malformed IPv6 address\n"); | |
1993 | return CMD_WARNING_CONFIG_FAILED; | |
1994 | } | |
1995 | if (argc > 4) { | |
1996 | char *lifetime = argv[4]->type == RANGE_TKN ? argv[4]->arg | |
1997 | : argv[4]->text; | |
1998 | rdnss.lifetime = strmatch(lifetime, "infinite") | |
1999 | ? UINT32_MAX | |
2000 | : strtoll(lifetime, NULL, 10); | |
2001 | rdnss.lifetime_set = 1; | |
2002 | } | |
2003 | ||
2004 | rtadv_rdnss_set(zif, &rdnss); | |
2005 | ||
2006 | return CMD_SUCCESS; | |
2007 | } | |
2008 | ||
2009 | DEFUN(no_ipv6_nd_rdnss, | |
2010 | no_ipv6_nd_rdnss_cmd, | |
2011 | "no ipv6 nd rdnss X:X::X:X [<(0-4294967295)|infinite>]", | |
2012 | NO_STR | |
2013 | "Interface IPv6 config commands\n" | |
2014 | "Neighbor discovery\n" | |
2015 | "Recursive DNS server information\n" | |
2016 | "IPv6 address\n" | |
2017 | "Valid lifetime in seconds\n" | |
2018 | "Infinite valid lifetime\n") | |
2019 | { | |
2020 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
2021 | struct zebra_if *zif = ifp->info; | |
844e9180 | 2022 | struct rtadv_rdnss rdnss = {}; |
3eb4fbb0 LS |
2023 | |
2024 | if (inet_pton(AF_INET6, argv[4]->arg, &rdnss.addr) != 1) { | |
2025 | vty_out(vty, "Malformed IPv6 address\n"); | |
2026 | return CMD_WARNING_CONFIG_FAILED; | |
2027 | } | |
2028 | if (rtadv_rdnss_reset(zif, &rdnss) != 1) { | |
2029 | vty_out(vty, "Non-existant RDNSS address\n"); | |
2030 | return CMD_WARNING_CONFIG_FAILED; | |
2031 | } | |
2032 | ||
2033 | return CMD_SUCCESS; | |
2034 | } | |
2035 | ||
2036 | DEFUN(ipv6_nd_dnssl, | |
2037 | ipv6_nd_dnssl_cmd, | |
2038 | "ipv6 nd dnssl SUFFIX [<(0-4294967295)|infinite>]", | |
2039 | "Interface IPv6 config commands\n" | |
2040 | "Neighbor discovery\n" | |
2041 | "DNS search list information\n" | |
2042 | "Domain name suffix\n" | |
2043 | "Valid lifetime in seconds\n" | |
2044 | "Infinite valid lifetime\n") | |
2045 | { | |
2046 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
2047 | struct zebra_if *zif = ifp->info; | |
844e9180 | 2048 | struct rtadv_dnssl dnssl = {}; |
3eb4fbb0 LS |
2049 | size_t len; |
2050 | int ret; | |
2051 | ||
2052 | len = strlcpy(dnssl.name, argv[3]->arg, sizeof(dnssl.name)); | |
2053 | if (len == 0 || len >= sizeof(dnssl.name)) { | |
2054 | vty_out(vty, "Malformed DNS search domain\n"); | |
2055 | return CMD_WARNING_CONFIG_FAILED; | |
2056 | } | |
2057 | if (dnssl.name[len - 1] == '.') { | |
2058 | /* | |
2059 | * Allow, but don't require, a trailing dot signifying the root | |
2060 | * zone. Canonicalize by cutting it off if present. | |
2061 | */ | |
2062 | dnssl.name[len - 1] = '\0'; | |
2063 | len--; | |
2064 | } | |
2065 | if (argc > 4) { | |
2066 | char *lifetime = argv[4]->type == RANGE_TKN ? argv[4]->arg | |
2067 | : argv[4]->text; | |
2068 | dnssl.lifetime = strmatch(lifetime, "infinite") | |
2069 | ? UINT32_MAX | |
2070 | : strtoll(lifetime, NULL, 10); | |
2071 | dnssl.lifetime_set = 1; | |
2072 | } | |
2073 | ||
2074 | ret = rtadv_dnssl_encode(dnssl.encoded_name, dnssl.name); | |
2075 | if (ret < 0) { | |
2076 | vty_out(vty, "Malformed DNS search domain\n"); | |
2077 | return CMD_WARNING_CONFIG_FAILED; | |
2078 | } | |
2079 | dnssl.encoded_len = ret; | |
2080 | rtadv_dnssl_set(zif, &dnssl); | |
2081 | ||
2082 | return CMD_SUCCESS; | |
2083 | } | |
2084 | ||
2085 | DEFUN(no_ipv6_nd_dnssl, | |
2086 | no_ipv6_nd_dnssl_cmd, | |
2087 | "no ipv6 nd dnssl SUFFIX [<(0-4294967295)|infinite>]", | |
2088 | NO_STR | |
2089 | "Interface IPv6 config commands\n" | |
2090 | "Neighbor discovery\n" | |
2091 | "DNS search list information\n" | |
2092 | "Domain name suffix\n" | |
2093 | "Valid lifetime in seconds\n" | |
2094 | "Infinite valid lifetime\n") | |
2095 | { | |
2096 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
2097 | struct zebra_if *zif = ifp->info; | |
844e9180 | 2098 | struct rtadv_dnssl dnssl = {}; |
3eb4fbb0 LS |
2099 | size_t len; |
2100 | ||
2101 | len = strlcpy(dnssl.name, argv[4]->arg, sizeof(dnssl.name)); | |
2102 | if (len == 0 || len >= sizeof(dnssl.name)) { | |
2103 | vty_out(vty, "Malformed DNS search domain\n"); | |
2104 | return CMD_WARNING_CONFIG_FAILED; | |
2105 | } | |
2106 | if (dnssl.name[len - 1] == '.') { | |
2107 | dnssl.name[len - 1] = '\0'; | |
2108 | len--; | |
2109 | } | |
2110 | if (rtadv_dnssl_reset(zif, &dnssl) != 1) { | |
2111 | vty_out(vty, "Non-existant DNS search domain\n"); | |
2112 | return CMD_WARNING_CONFIG_FAILED; | |
2113 | } | |
2114 | ||
2115 | return CMD_SUCCESS; | |
2116 | } | |
2117 | ||
2118 | ||
2eb27eec DL |
2119 | /* Dump interface ND information to vty. */ |
2120 | static int nd_dump_vty(struct vty *vty, struct interface *ifp) | |
2121 | { | |
2122 | struct zebra_if *zif; | |
2123 | struct rtadvconf *rtadv; | |
2124 | int interval; | |
2125 | ||
2126 | zif = (struct zebra_if *)ifp->info; | |
2127 | rtadv = &zif->rtadv; | |
2128 | ||
2129 | if (rtadv->AdvSendAdvertisements) { | |
2130 | vty_out(vty, | |
2131 | " ND advertised reachable time is %d milliseconds\n", | |
2132 | rtadv->AdvReachableTime); | |
2133 | vty_out(vty, | |
2134 | " ND advertised retransmit interval is %d milliseconds\n", | |
2135 | rtadv->AdvRetransTimer); | |
2136 | vty_out(vty, " ND router advertisements sent: %d rcvd: %d\n", | |
2137 | zif->ra_sent, zif->ra_rcvd); | |
2138 | interval = rtadv->MaxRtrAdvInterval; | |
2139 | if (interval % 1000) | |
2140 | vty_out(vty, | |
2141 | " ND router advertisements are sent every " | |
2142 | "%d milliseconds\n", | |
2143 | interval); | |
2144 | else | |
2145 | vty_out(vty, | |
2146 | " ND router advertisements are sent every " | |
2147 | "%d seconds\n", | |
2148 | interval / 1000); | |
adee8f21 DS |
2149 | if (!rtadv->UseFastRexmit) |
2150 | vty_out(vty, | |
2151 | " ND router advertisements do not use fast retransmit\n"); | |
2152 | ||
2eb27eec DL |
2153 | if (rtadv->AdvDefaultLifetime != -1) |
2154 | vty_out(vty, | |
2155 | " ND router advertisements live for %d seconds\n", | |
2156 | rtadv->AdvDefaultLifetime); | |
2157 | else | |
2158 | vty_out(vty, | |
2159 | " ND router advertisements lifetime tracks ra-interval\n"); | |
2160 | vty_out(vty, | |
2161 | " ND router advertisement default router preference is " | |
2162 | "%s\n", | |
2163 | rtadv_pref_strs[rtadv->DefaultPreference]); | |
2164 | if (rtadv->AdvManagedFlag) | |
2165 | vty_out(vty, | |
2166 | " Hosts use DHCP to obtain routable addresses.\n"); | |
2167 | else | |
2168 | vty_out(vty, | |
2169 | " Hosts use stateless autoconfig for addresses.\n"); | |
2170 | if (rtadv->AdvHomeAgentFlag) { | |
2171 | vty_out(vty, | |
2172 | " ND router advertisements with Home Agent flag bit set.\n"); | |
2173 | if (rtadv->HomeAgentLifetime != -1) | |
2174 | vty_out(vty, | |
2175 | " Home Agent lifetime is %u seconds\n", | |
2176 | rtadv->HomeAgentLifetime); | |
2177 | else | |
2178 | vty_out(vty, | |
2179 | " Home Agent lifetime tracks ra-lifetime\n"); | |
2180 | vty_out(vty, " Home Agent preference is %u\n", | |
2181 | rtadv->HomeAgentPreference); | |
2182 | } | |
2183 | if (rtadv->AdvIntervalOption) | |
2184 | vty_out(vty, | |
2185 | " ND router advertisements with Adv. Interval option.\n"); | |
2186 | } | |
2187 | return 0; | |
2188 | } | |
2189 | ||
6ae93c05 | 2190 | |
718e3744 | 2191 | /* Write configuration about router advertisement. */ |
2eb27eec | 2192 | static int rtadv_config_write(struct vty *vty, struct interface *ifp) |
718e3744 | 2193 | { |
d62a17ae | 2194 | struct zebra_if *zif; |
2195 | struct listnode *node; | |
2196 | struct rtadv_prefix *rprefix; | |
3eb4fbb0 LS |
2197 | struct rtadv_rdnss *rdnss; |
2198 | struct rtadv_dnssl *dnssl; | |
d62a17ae | 2199 | char buf[PREFIX_STRLEN]; |
2200 | int interval; | |
2201 | ||
2202 | zif = ifp->info; | |
2203 | ||
2204 | if (!(if_is_loopback(ifp) | |
2205 | || CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK))) { | |
3ea48364 DS |
2206 | if (zif->rtadv.AdvSendAdvertisements |
2207 | && CHECK_FLAG(zif->rtadv.ra_configured, VTY_RA_CONFIGURED)) | |
d62a17ae | 2208 | vty_out(vty, " no ipv6 nd suppress-ra\n"); |
2209 | } | |
2210 | ||
2211 | interval = zif->rtadv.MaxRtrAdvInterval; | |
3ea48364 DS |
2212 | if (CHECK_FLAG(zif->rtadv.ra_configured, VTY_RA_INTERVAL_CONFIGURED)) { |
2213 | if (interval % 1000) | |
2214 | vty_out(vty, " ipv6 nd ra-interval msec %d\n", | |
2215 | interval); | |
2216 | else if (interval != RTADV_MAX_RTR_ADV_INTERVAL) | |
2217 | vty_out(vty, " ipv6 nd ra-interval %d\n", | |
2218 | interval / 1000); | |
2219 | } | |
d62a17ae | 2220 | |
2221 | if (zif->rtadv.AdvIntervalOption) | |
2222 | vty_out(vty, " ipv6 nd adv-interval-option\n"); | |
2223 | ||
adee8f21 DS |
2224 | if (!zif->rtadv.UseFastRexmit) |
2225 | vty_out(vty, " no ipv6 nd ra-fast-retrans\n"); | |
2226 | ||
d62a17ae | 2227 | if (zif->rtadv.AdvDefaultLifetime != -1) |
2228 | vty_out(vty, " ipv6 nd ra-lifetime %d\n", | |
2229 | zif->rtadv.AdvDefaultLifetime); | |
2230 | ||
2231 | if (zif->rtadv.HomeAgentPreference) | |
2232 | vty_out(vty, " ipv6 nd home-agent-preference %u\n", | |
2233 | zif->rtadv.HomeAgentPreference); | |
2234 | ||
2235 | if (zif->rtadv.HomeAgentLifetime != -1) | |
2236 | vty_out(vty, " ipv6 nd home-agent-lifetime %u\n", | |
2237 | zif->rtadv.HomeAgentLifetime); | |
2238 | ||
2239 | if (zif->rtadv.AdvHomeAgentFlag) | |
2240 | vty_out(vty, " ipv6 nd home-agent-config-flag\n"); | |
2241 | ||
2242 | if (zif->rtadv.AdvReachableTime) | |
2243 | vty_out(vty, " ipv6 nd reachable-time %d\n", | |
2244 | zif->rtadv.AdvReachableTime); | |
2245 | ||
2246 | if (zif->rtadv.AdvManagedFlag) | |
2247 | vty_out(vty, " ipv6 nd managed-config-flag\n"); | |
2248 | ||
2249 | if (zif->rtadv.AdvOtherConfigFlag) | |
2250 | vty_out(vty, " ipv6 nd other-config-flag\n"); | |
2251 | ||
2252 | if (zif->rtadv.DefaultPreference != RTADV_PREF_MEDIUM) | |
2253 | vty_out(vty, " ipv6 nd router-preference %s\n", | |
2254 | rtadv_pref_strs[zif->rtadv.DefaultPreference]); | |
2255 | ||
2256 | if (zif->rtadv.AdvLinkMTU) | |
2257 | vty_out(vty, " ipv6 nd mtu %d\n", zif->rtadv.AdvLinkMTU); | |
2258 | ||
2259 | for (ALL_LIST_ELEMENTS_RO(zif->rtadv.AdvPrefixList, node, rprefix)) { | |
2a855763 DS |
2260 | if ((rprefix->AdvPrefixCreate == PREFIX_SRC_MANUAL) |
2261 | || (rprefix->AdvPrefixCreate == PREFIX_SRC_BOTH)) { | |
2262 | vty_out(vty, " ipv6 nd prefix %s", | |
2263 | prefix2str(&rprefix->prefix, buf, sizeof(buf))); | |
2264 | if ((rprefix->AdvValidLifetime != RTADV_VALID_LIFETIME) | |
2265 | || (rprefix->AdvPreferredLifetime | |
2266 | != RTADV_PREFERRED_LIFETIME)) { | |
2267 | if (rprefix->AdvValidLifetime == UINT32_MAX) | |
2268 | vty_out(vty, " infinite"); | |
2269 | else | |
2270 | vty_out(vty, " %u", | |
2271 | rprefix->AdvValidLifetime); | |
2272 | if (rprefix->AdvPreferredLifetime == UINT32_MAX) | |
2273 | vty_out(vty, " infinite"); | |
2274 | else | |
2275 | vty_out(vty, " %u", | |
2276 | rprefix->AdvPreferredLifetime); | |
2277 | } | |
2278 | if (!rprefix->AdvOnLinkFlag) | |
2279 | vty_out(vty, " off-link"); | |
2280 | if (!rprefix->AdvAutonomousFlag) | |
2281 | vty_out(vty, " no-autoconfig"); | |
2282 | if (rprefix->AdvRouterAddressFlag) | |
2283 | vty_out(vty, " router-address"); | |
2284 | vty_out(vty, "\n"); | |
d62a17ae | 2285 | } |
3e31cded | 2286 | } |
2a855763 | 2287 | |
3eb4fbb0 LS |
2288 | for (ALL_LIST_ELEMENTS_RO(zif->rtadv.AdvRDNSSList, node, rdnss)) { |
2289 | char buf[INET6_ADDRSTRLEN]; | |
2290 | ||
2291 | vty_out(vty, " ipv6 nd rdnss %s", | |
2292 | inet_ntop(AF_INET6, &rdnss->addr, buf, sizeof(buf))); | |
2293 | if (rdnss->lifetime_set) { | |
2294 | if (rdnss->lifetime == UINT32_MAX) | |
2295 | vty_out(vty, " infinite"); | |
2296 | else | |
2297 | vty_out(vty, " %u", rdnss->lifetime); | |
2298 | } | |
2299 | vty_out(vty, "\n"); | |
2300 | } | |
2301 | for (ALL_LIST_ELEMENTS_RO(zif->rtadv.AdvDNSSLList, node, dnssl)) { | |
2302 | vty_out(vty, " ipv6 nd dnssl %s", dnssl->name); | |
2303 | if (dnssl->lifetime_set) { | |
2304 | if (dnssl->lifetime == UINT32_MAX) | |
2305 | vty_out(vty, " infinite"); | |
2306 | else | |
2307 | vty_out(vty, " %u", dnssl->lifetime); | |
2308 | } | |
2309 | vty_out(vty, "\n"); | |
2310 | } | |
2eb27eec | 2311 | return 0; |
718e3744 | 2312 | } |
2313 | ||
718e3744 | 2314 | |
df9c8c57 | 2315 | static void rtadv_event(struct zebra_vrf *zvrf, enum rtadv_event event, int val) |
718e3744 | 2316 | { |
df9c8c57 | 2317 | struct rtadv *rtadv = &zvrf->rtadv; |
d62a17ae | 2318 | |
2319 | switch (event) { | |
2320 | case RTADV_START: | |
df9c8c57 | 2321 | thread_add_read(zrouter.master, rtadv_read, zvrf, val, |
d62a17ae | 2322 | &rtadv->ra_read); |
df9c8c57 | 2323 | thread_add_event(zrouter.master, rtadv_timer, zvrf, 0, |
d62a17ae | 2324 | &rtadv->ra_timer); |
2325 | break; | |
2326 | case RTADV_STOP: | |
311c15ee DS |
2327 | THREAD_OFF(rtadv->ra_timer); |
2328 | THREAD_OFF(rtadv->ra_read); | |
d62a17ae | 2329 | break; |
2330 | case RTADV_TIMER: | |
df9c8c57 | 2331 | thread_add_timer(zrouter.master, rtadv_timer, zvrf, val, |
d62a17ae | 2332 | &rtadv->ra_timer); |
2333 | break; | |
2334 | case RTADV_TIMER_MSEC: | |
df9c8c57 | 2335 | thread_add_timer_msec(zrouter.master, rtadv_timer, zvrf, val, |
d62a17ae | 2336 | &rtadv->ra_timer); |
2337 | break; | |
2338 | case RTADV_READ: | |
df9c8c57 | 2339 | thread_add_read(zrouter.master, rtadv_read, zvrf, val, |
d62a17ae | 2340 | &rtadv->ra_read); |
2341 | break; | |
2342 | default: | |
2343 | break; | |
718e3744 | 2344 | } |
d62a17ae | 2345 | return; |
718e3744 | 2346 | } |
2347 | ||
df9c8c57 | 2348 | void rtadv_init(struct zebra_vrf *zvrf) |
718e3744 | 2349 | { |
9245fe61 PG |
2350 | if (vrf_is_backend_netns()) { |
2351 | zvrf->rtadv.sock = rtadv_make_socket(zvrf->zns->ns_id); | |
2352 | zrouter.rtadv_sock = -1; | |
311c15ee | 2353 | } else { |
9245fe61 | 2354 | zvrf->rtadv.sock = -1; |
311c15ee DS |
2355 | if (zrouter.rtadv_sock < 0) |
2356 | zrouter.rtadv_sock = | |
2357 | rtadv_make_socket(zvrf->zns->ns_id); | |
9245fe61 | 2358 | } |
cd80d74f | 2359 | } |
718e3744 | 2360 | |
df9c8c57 | 2361 | void rtadv_terminate(struct zebra_vrf *zvrf) |
cd80d74f | 2362 | { |
df9c8c57 PG |
2363 | rtadv_event(zvrf, RTADV_STOP, 0); |
2364 | if (zvrf->rtadv.sock >= 0) { | |
2365 | close(zvrf->rtadv.sock); | |
2366 | zvrf->rtadv.sock = -1; | |
9245fe61 PG |
2367 | } else if (zrouter.rtadv_sock >= 0) { |
2368 | close(zrouter.rtadv_sock); | |
2369 | zrouter.rtadv_sock = -1; | |
d62a17ae | 2370 | } |
df9c8c57 PG |
2371 | zvrf->rtadv.adv_if_count = 0; |
2372 | zvrf->rtadv.adv_msec_if_count = 0; | |
cd80d74f | 2373 | } |
718e3744 | 2374 | |
d62a17ae | 2375 | void rtadv_cmd_init(void) |
cd80d74f | 2376 | { |
2eb27eec DL |
2377 | hook_register(zebra_if_extra_info, nd_dump_vty); |
2378 | hook_register(zebra_if_config_wr, rtadv_config_write); | |
2379 | ||
adee8f21 DS |
2380 | install_element(INTERFACE_NODE, &ipv6_nd_ra_fast_retrans_cmd); |
2381 | install_element(INTERFACE_NODE, &no_ipv6_nd_ra_fast_retrans_cmd); | |
d62a17ae | 2382 | install_element(INTERFACE_NODE, &ipv6_nd_suppress_ra_cmd); |
2383 | install_element(INTERFACE_NODE, &no_ipv6_nd_suppress_ra_cmd); | |
2384 | install_element(INTERFACE_NODE, &ipv6_nd_ra_interval_cmd); | |
2385 | install_element(INTERFACE_NODE, &ipv6_nd_ra_interval_msec_cmd); | |
2386 | install_element(INTERFACE_NODE, &no_ipv6_nd_ra_interval_cmd); | |
2387 | install_element(INTERFACE_NODE, &ipv6_nd_ra_lifetime_cmd); | |
2388 | install_element(INTERFACE_NODE, &no_ipv6_nd_ra_lifetime_cmd); | |
2389 | install_element(INTERFACE_NODE, &ipv6_nd_reachable_time_cmd); | |
2390 | install_element(INTERFACE_NODE, &no_ipv6_nd_reachable_time_cmd); | |
2391 | install_element(INTERFACE_NODE, &ipv6_nd_managed_config_flag_cmd); | |
2392 | install_element(INTERFACE_NODE, &no_ipv6_nd_managed_config_flag_cmd); | |
2393 | install_element(INTERFACE_NODE, &ipv6_nd_other_config_flag_cmd); | |
2394 | install_element(INTERFACE_NODE, &no_ipv6_nd_other_config_flag_cmd); | |
2395 | install_element(INTERFACE_NODE, &ipv6_nd_homeagent_config_flag_cmd); | |
2396 | install_element(INTERFACE_NODE, &no_ipv6_nd_homeagent_config_flag_cmd); | |
2397 | install_element(INTERFACE_NODE, &ipv6_nd_homeagent_preference_cmd); | |
2398 | install_element(INTERFACE_NODE, &no_ipv6_nd_homeagent_preference_cmd); | |
2399 | install_element(INTERFACE_NODE, &ipv6_nd_homeagent_lifetime_cmd); | |
2400 | install_element(INTERFACE_NODE, &no_ipv6_nd_homeagent_lifetime_cmd); | |
2401 | install_element(INTERFACE_NODE, | |
2402 | &ipv6_nd_adv_interval_config_option_cmd); | |
2403 | install_element(INTERFACE_NODE, | |
2404 | &no_ipv6_nd_adv_interval_config_option_cmd); | |
2405 | install_element(INTERFACE_NODE, &ipv6_nd_prefix_cmd); | |
2406 | install_element(INTERFACE_NODE, &no_ipv6_nd_prefix_cmd); | |
2407 | install_element(INTERFACE_NODE, &ipv6_nd_router_preference_cmd); | |
2408 | install_element(INTERFACE_NODE, &no_ipv6_nd_router_preference_cmd); | |
2409 | install_element(INTERFACE_NODE, &ipv6_nd_mtu_cmd); | |
2410 | install_element(INTERFACE_NODE, &no_ipv6_nd_mtu_cmd); | |
3eb4fbb0 LS |
2411 | install_element(INTERFACE_NODE, &ipv6_nd_rdnss_cmd); |
2412 | install_element(INTERFACE_NODE, &no_ipv6_nd_rdnss_cmd); | |
2413 | install_element(INTERFACE_NODE, &ipv6_nd_dnssl_cmd); | |
2414 | install_element(INTERFACE_NODE, &no_ipv6_nd_dnssl_cmd); | |
718e3744 | 2415 | } |
2416 | ||
d62a17ae | 2417 | static int if_join_all_router(int sock, struct interface *ifp) |
718e3744 | 2418 | { |
d62a17ae | 2419 | int ret; |
718e3744 | 2420 | |
d62a17ae | 2421 | struct ipv6_mreq mreq; |
718e3744 | 2422 | |
d62a17ae | 2423 | memset(&mreq, 0, sizeof(struct ipv6_mreq)); |
2424 | inet_pton(AF_INET6, ALLROUTER, &mreq.ipv6mr_multiaddr); | |
2425 | mreq.ipv6mr_interface = ifp->ifindex; | |
718e3744 | 2426 | |
d62a17ae | 2427 | ret = setsockopt(sock, IPPROTO_IPV6, IPV6_JOIN_GROUP, (char *)&mreq, |
0d6f7fd6 | 2428 | sizeof(mreq)); |
d62a17ae | 2429 | if (ret < 0) |
450971aa | 2430 | flog_err_sys(EC_LIB_SOCKET, |
9df414fe QY |
2431 | "%s(%u): Failed to join group, socket %u error %s", |
2432 | ifp->name, ifp->ifindex, sock, | |
2433 | safe_strerror(errno)); | |
718e3744 | 2434 | |
d62a17ae | 2435 | if (IS_ZEBRA_DEBUG_EVENT) |
2436 | zlog_debug( | |
2437 | "%s(%u): Join All-Routers multicast group, socket %u", | |
2438 | ifp->name, ifp->ifindex, sock); | |
718e3744 | 2439 | |
d62a17ae | 2440 | return 0; |
718e3744 | 2441 | } |
2442 | ||
d62a17ae | 2443 | static int if_leave_all_router(int sock, struct interface *ifp) |
718e3744 | 2444 | { |
d62a17ae | 2445 | int ret; |
718e3744 | 2446 | |
d62a17ae | 2447 | struct ipv6_mreq mreq; |
718e3744 | 2448 | |
d62a17ae | 2449 | memset(&mreq, 0, sizeof(struct ipv6_mreq)); |
2450 | inet_pton(AF_INET6, ALLROUTER, &mreq.ipv6mr_multiaddr); | |
2451 | mreq.ipv6mr_interface = ifp->ifindex; | |
718e3744 | 2452 | |
d62a17ae | 2453 | ret = setsockopt(sock, IPPROTO_IPV6, IPV6_LEAVE_GROUP, (char *)&mreq, |
0d6f7fd6 | 2454 | sizeof(mreq)); |
d62a17ae | 2455 | if (ret < 0) |
9df414fe | 2456 | flog_err_sys( |
450971aa | 2457 | EC_LIB_SOCKET, |
9df414fe QY |
2458 | "%s(%u): Failed to leave group, socket %u error %s", |
2459 | ifp->name, ifp->ifindex, sock, safe_strerror(errno)); | |
718e3744 | 2460 | |
d62a17ae | 2461 | if (IS_ZEBRA_DEBUG_EVENT) |
2462 | zlog_debug( | |
2463 | "%s(%u): Leave All-Routers multicast group, socket %u", | |
2464 | ifp->name, ifp->ifindex, sock); | |
718e3744 | 2465 | |
d62a17ae | 2466 | return 0; |
718e3744 | 2467 | } |
2468 | ||
2469 | #else | |
df9c8c57 | 2470 | void rtadv_init(struct zebra_vrf *zvrf) |
cd80d74f | 2471 | { |
d62a17ae | 2472 | /* Empty.*/; |
cd80d74f | 2473 | } |
df9c8c57 | 2474 | void rtadv_terminate(struct zebra_vrf *zvrf) |
cd80d74f | 2475 | { |
d62a17ae | 2476 | /* Empty.*/; |
cd80d74f | 2477 | } |
d62a17ae | 2478 | void rtadv_cmd_init(void) |
718e3744 | 2479 | { |
d62a17ae | 2480 | /* Empty.*/; |
718e3744 | 2481 | } |
0af3d691 MS |
2482 | |
2483 | void rtadv_add_prefix(struct zebra_if *zif, const struct prefix_ipv6 *p) | |
2484 | { | |
2485 | /* Empty.*/; | |
2486 | } | |
2487 | ||
2488 | void rtadv_delete_prefix(struct zebra_if *zif, const struct prefix *p) | |
2489 | { | |
2490 | /* Empty.*/; | |
2491 | } | |
2492 | ||
2493 | void rtadv_stop_ra(struct interface *ifp) | |
2494 | { | |
2495 | /* Empty.*/; | |
2496 | } | |
2497 | ||
2498 | void rtadv_stop_ra_all(void) | |
2499 | { | |
2500 | /* Empty.*/; | |
2501 | } | |
2502 | ||
56c1f7d8 | 2503 | #endif /* HAVE_RTADV */ |