]>
Commit | Line | Data |
---|---|---|
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 | |
d3f604f0 DS |
53 | #ifndef VTYSH_EXTRACT_PL |
54 | #include "zebra/rtadv_clippy.c" | |
55 | #endif | |
56 | ||
c1344b54 DL |
57 | DEFINE_MTYPE_STATIC(ZEBRA, RTADV_PREFIX, "Router Advertisement Prefix") |
58 | ||
fa2b17e3 | 59 | #ifdef OPEN_BSD |
60 | #include <netinet/icmp6.h> | |
61 | #endif | |
62 | ||
718e3744 | 63 | /* If RFC2133 definition is used. */ |
64 | #ifndef IPV6_JOIN_GROUP | |
c258527b | 65 | #define IPV6_JOIN_GROUP IPV6_ADD_MEMBERSHIP |
718e3744 | 66 | #endif |
67 | #ifndef IPV6_LEAVE_GROUP | |
c258527b | 68 | #define IPV6_LEAVE_GROUP IPV6_DROP_MEMBERSHIP |
718e3744 | 69 | #endif |
70 | ||
71 | #define ALLNODE "ff02::1" | |
72 | #define ALLROUTER "ff02::2" | |
73 | ||
110765e3 LS |
74 | DEFINE_MTYPE_STATIC(ZEBRA, RTADV_RDNSS, "Router Advertisement RDNSS") |
75 | DEFINE_MTYPE_STATIC(ZEBRA, RTADV_DNSSL, "Router Advertisement DNSSL") | |
76 | ||
2eb27eec DL |
77 | /* Order is intentional. Matches RFC4191. This array is also used for |
78 | command matching, so only modify with care. */ | |
2b64873d DL |
79 | static const char *const rtadv_pref_strs[] = { |
80 | "medium", "high", "INVALID", "low", 0 | |
81 | }; | |
2eb27eec | 82 | |
d62a17ae | 83 | enum rtadv_event { |
84 | RTADV_START, | |
85 | RTADV_STOP, | |
86 | RTADV_TIMER, | |
87 | RTADV_TIMER_MSEC, | |
88 | RTADV_READ | |
89 | }; | |
718e3744 | 90 | |
df9c8c57 | 91 | static void rtadv_event(struct zebra_vrf *, enum rtadv_event, int); |
718e3744 | 92 | |
d62a17ae | 93 | static int if_join_all_router(int, struct interface *); |
94 | static int if_leave_all_router(int, struct interface *); | |
6b0655a2 | 95 | |
9245fe61 PG |
96 | static int rtadv_get_socket(struct zebra_vrf *zvrf) |
97 | { | |
98 | if (zvrf->rtadv.sock > 0) | |
99 | return zvrf->rtadv.sock; | |
100 | return zrouter.rtadv_sock; | |
101 | } | |
102 | ||
df9c8c57 | 103 | static int rtadv_increment_received(struct zebra_vrf *zvrf, ifindex_t *ifindex) |
911ad1e2 | 104 | { |
d62a17ae | 105 | int ret = -1; |
106 | struct interface *iface; | |
107 | struct zebra_if *zif; | |
108 | ||
df9c8c57 | 109 | iface = if_lookup_by_index(*ifindex, zvrf->vrf->vrf_id); |
d62a17ae | 110 | if (iface && iface->info) { |
111 | zif = iface->info; | |
112 | zif->ra_rcvd++; | |
113 | ret = 0; | |
114 | } | |
115 | return ret; | |
795b5abf QY |
116 | } |
117 | ||
df9c8c57 | 118 | static int rtadv_recv_packet(struct zebra_vrf *zvrf, int sock, uint8_t *buf, |
d62a17ae | 119 | int buflen, struct sockaddr_in6 *from, |
120 | ifindex_t *ifindex, int *hoplimit) | |
718e3744 | 121 | { |
d62a17ae | 122 | int ret; |
123 | struct msghdr msg; | |
124 | struct iovec iov; | |
125 | struct cmsghdr *cmsgptr; | |
126 | struct in6_addr dst; | |
127 | ||
128 | char adata[1024]; | |
129 | ||
130 | /* Fill in message and iovec. */ | |
0af35d90 | 131 | memset(&msg, 0, sizeof(msg)); |
d62a17ae | 132 | msg.msg_name = (void *)from; |
133 | msg.msg_namelen = sizeof(struct sockaddr_in6); | |
134 | msg.msg_iov = &iov; | |
135 | msg.msg_iovlen = 1; | |
136 | msg.msg_control = (void *)adata; | |
0d6f7fd6 | 137 | msg.msg_controllen = sizeof(adata); |
d62a17ae | 138 | iov.iov_base = buf; |
139 | iov.iov_len = buflen; | |
140 | ||
141 | /* If recvmsg fail return minus value. */ | |
142 | ret = recvmsg(sock, &msg, 0); | |
143 | if (ret < 0) | |
144 | return ret; | |
145 | ||
adf0e7c6 | 146 | for (cmsgptr = CMSG_FIRSTHDR(&msg); cmsgptr != NULL; |
d62a17ae | 147 | cmsgptr = CMSG_NXTHDR(&msg, cmsgptr)) { |
148 | /* I want interface index which this packet comes from. */ | |
149 | if (cmsgptr->cmsg_level == IPPROTO_IPV6 | |
150 | && cmsgptr->cmsg_type == IPV6_PKTINFO) { | |
151 | struct in6_pktinfo *ptr; | |
152 | ||
153 | ptr = (struct in6_pktinfo *)CMSG_DATA(cmsgptr); | |
154 | *ifindex = ptr->ipi6_ifindex; | |
155 | memcpy(&dst, &ptr->ipi6_addr, sizeof(ptr->ipi6_addr)); | |
156 | } | |
157 | ||
158 | /* Incoming packet's hop limit. */ | |
159 | if (cmsgptr->cmsg_level == IPPROTO_IPV6 | |
160 | && cmsgptr->cmsg_type == IPV6_HOPLIMIT) { | |
161 | int *hoptr = (int *)CMSG_DATA(cmsgptr); | |
162 | *hoplimit = *hoptr; | |
163 | } | |
b0b709ab | 164 | } |
795b5abf | 165 | |
df9c8c57 | 166 | rtadv_increment_received(zvrf, ifindex); |
d62a17ae | 167 | return ret; |
718e3744 | 168 | } |
169 | ||
170 | #define RTADV_MSG_SIZE 4096 | |
171 | ||
172 | /* Send router advertisement packet. */ | |
d7fc0e67 | 173 | static void rtadv_send_packet(int sock, struct interface *ifp, |
57dd8642 | 174 | enum ipv6_nd_suppress_ra_status stop) |
718e3744 | 175 | { |
d62a17ae | 176 | struct msghdr msg; |
177 | struct iovec iov; | |
178 | struct cmsghdr *cmsgptr; | |
179 | struct in6_pktinfo *pkt; | |
180 | struct sockaddr_in6 addr; | |
181 | static void *adata = NULL; | |
182 | unsigned char buf[RTADV_MSG_SIZE]; | |
183 | struct nd_router_advert *rtadv; | |
184 | int ret; | |
185 | int len = 0; | |
186 | struct zebra_if *zif; | |
187 | struct rtadv_prefix *rprefix; | |
d7c0a89a QY |
188 | uint8_t all_nodes_addr[] = {0xff, 0x02, 0, 0, 0, 0, 0, 0, |
189 | 0, 0, 0, 0, 0, 0, 0, 1}; | |
d62a17ae | 190 | struct listnode *node; |
d7c0a89a | 191 | uint16_t pkt_RouterLifetime; |
d62a17ae | 192 | |
193 | /* | |
194 | * Allocate control message bufffer. This is dynamic because | |
195 | * CMSG_SPACE is not guaranteed not to call a function. Note that | |
196 | * the size will be different on different architectures due to | |
197 | * differing alignment rules. | |
198 | */ | |
199 | if (adata == NULL) { | |
200 | /* XXX Free on shutdown. */ | |
b8aa3767 | 201 | adata = calloc(1, CMSG_SPACE(sizeof(struct in6_pktinfo))); |
d62a17ae | 202 | |
b8aa3767 | 203 | if (adata == NULL) { |
9df414fe | 204 | zlog_debug( |
d62a17ae | 205 | "rtadv_send_packet: can't malloc control data"); |
b8aa3767 DS |
206 | exit(-1); |
207 | } | |
d62a17ae | 208 | } |
209 | ||
210 | /* Logging of packet. */ | |
60077146 DS |
211 | if (IS_ZEBRA_DEBUG_PACKET) { |
212 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); | |
213 | ||
214 | zlog_debug("%s(%s:%u): Tx RA, socket %u", ifp->name, | |
215 | VRF_LOGNAME(vrf), ifp->ifindex, sock); | |
216 | } | |
d62a17ae | 217 | |
218 | /* Fill in sockaddr_in6. */ | |
219 | memset(&addr, 0, sizeof(struct sockaddr_in6)); | |
220 | addr.sin6_family = AF_INET6; | |
718e3744 | 221 | #ifdef SIN6_LEN |
d62a17ae | 222 | addr.sin6_len = sizeof(struct sockaddr_in6); |
718e3744 | 223 | #endif /* SIN6_LEN */ |
d62a17ae | 224 | addr.sin6_port = htons(IPPROTO_ICMPV6); |
225 | IPV6_ADDR_COPY(&addr.sin6_addr, all_nodes_addr); | |
226 | ||
227 | /* Fetch interface information. */ | |
228 | zif = ifp->info; | |
229 | ||
230 | /* Make router advertisement message. */ | |
231 | rtadv = (struct nd_router_advert *)buf; | |
232 | ||
233 | rtadv->nd_ra_type = ND_ROUTER_ADVERT; | |
234 | rtadv->nd_ra_code = 0; | |
235 | rtadv->nd_ra_cksum = 0; | |
236 | ||
fae01935 | 237 | rtadv->nd_ra_curhoplimit = zif->rtadv.AdvCurHopLimit; |
d62a17ae | 238 | |
239 | /* RFC4191: Default Router Preference is 0 if Router Lifetime is 0. */ | |
240 | rtadv->nd_ra_flags_reserved = zif->rtadv.AdvDefaultLifetime == 0 | |
241 | ? 0 | |
242 | : zif->rtadv.DefaultPreference; | |
243 | rtadv->nd_ra_flags_reserved <<= 3; | |
244 | ||
245 | if (zif->rtadv.AdvManagedFlag) | |
246 | rtadv->nd_ra_flags_reserved |= ND_RA_FLAG_MANAGED; | |
247 | if (zif->rtadv.AdvOtherConfigFlag) | |
248 | rtadv->nd_ra_flags_reserved |= ND_RA_FLAG_OTHER; | |
249 | if (zif->rtadv.AdvHomeAgentFlag) | |
250 | rtadv->nd_ra_flags_reserved |= ND_RA_FLAG_HOME_AGENT; | |
251 | /* Note that according to Neighbor Discovery (RFC 4861 [18]), | |
252 | * AdvDefaultLifetime is by default based on the value of | |
253 | * MaxRtrAdvInterval. AdvDefaultLifetime is used in the Router Lifetime | |
254 | * field of Router Advertisements. Given that this field is expressed | |
255 | * in seconds, a small MaxRtrAdvInterval value can result in a zero | |
256 | * value for this field. To prevent this, routers SHOULD keep | |
257 | * AdvDefaultLifetime in at least one second, even if the use of | |
258 | * MaxRtrAdvInterval would result in a smaller value. -- RFC6275, 7.5 */ | |
259 | pkt_RouterLifetime = | |
260 | zif->rtadv.AdvDefaultLifetime != -1 | |
261 | ? zif->rtadv.AdvDefaultLifetime | |
262 | : MAX(1, 0.003 * zif->rtadv.MaxRtrAdvInterval); | |
d7fc0e67 DS |
263 | |
264 | /* send RA lifetime of 0 before stopping. rfc4861/6.2.5 */ | |
265 | rtadv->nd_ra_router_lifetime = | |
266 | (stop == RA_SUPPRESS) ? htons(0) : htons(pkt_RouterLifetime); | |
d62a17ae | 267 | rtadv->nd_ra_reachable = htonl(zif->rtadv.AdvReachableTime); |
b19ac878 | 268 | rtadv->nd_ra_retransmit = htonl(zif->rtadv.AdvRetransTimer); |
d62a17ae | 269 | |
270 | len = sizeof(struct nd_router_advert); | |
271 | ||
272 | /* If both the Home Agent Preference and Home Agent Lifetime are set to | |
273 | * their default values specified above, this option SHOULD NOT be | |
274 | * included in the Router Advertisement messages sent by this home | |
275 | * agent. -- RFC6275, 7.4 */ | |
276 | if (zif->rtadv.AdvHomeAgentFlag | |
277 | && (zif->rtadv.HomeAgentPreference | |
278 | || zif->rtadv.HomeAgentLifetime != -1)) { | |
279 | struct nd_opt_homeagent_info *ndopt_hai = | |
280 | (struct nd_opt_homeagent_info *)(buf + len); | |
281 | ndopt_hai->nd_opt_hai_type = ND_OPT_HA_INFORMATION; | |
282 | ndopt_hai->nd_opt_hai_len = 1; | |
283 | ndopt_hai->nd_opt_hai_reserved = 0; | |
284 | ndopt_hai->nd_opt_hai_preference = | |
285 | htons(zif->rtadv.HomeAgentPreference); | |
286 | /* 16-bit unsigned integer. The lifetime associated with the | |
287 | * home | |
288 | * agent in units of seconds. The default value is the same as | |
289 | * the | |
290 | * Router Lifetime, as specified in the main body of the Router | |
291 | * Advertisement. The maximum value corresponds to 18.2 hours. | |
292 | * A | |
293 | * value of 0 MUST NOT be used. -- RFC6275, 7.5 */ | |
294 | ndopt_hai->nd_opt_hai_lifetime = | |
295 | htons(zif->rtadv.HomeAgentLifetime != -1 | |
296 | ? zif->rtadv.HomeAgentLifetime | |
297 | : MAX(1, pkt_RouterLifetime) /* 0 is OK | |
298 | for RL, | |
299 | but not | |
300 | for HAL*/ | |
9d303b37 | 301 | ); |
d62a17ae | 302 | len += sizeof(struct nd_opt_homeagent_info); |
303 | } | |
718e3744 | 304 | |
d62a17ae | 305 | if (zif->rtadv.AdvIntervalOption) { |
306 | struct nd_opt_adv_interval *ndopt_adv = | |
307 | (struct nd_opt_adv_interval *)(buf + len); | |
308 | ndopt_adv->nd_opt_ai_type = ND_OPT_ADV_INTERVAL; | |
309 | ndopt_adv->nd_opt_ai_len = 1; | |
310 | ndopt_adv->nd_opt_ai_reserved = 0; | |
311 | ndopt_adv->nd_opt_ai_interval = | |
312 | htonl(zif->rtadv.MaxRtrAdvInterval); | |
313 | len += sizeof(struct nd_opt_adv_interval); | |
314 | } | |
315 | ||
316 | /* Fill in prefix. */ | |
317 | for (ALL_LIST_ELEMENTS_RO(zif->rtadv.AdvPrefixList, node, rprefix)) { | |
318 | struct nd_opt_prefix_info *pinfo; | |
718e3744 | 319 | |
d62a17ae | 320 | pinfo = (struct nd_opt_prefix_info *)(buf + len); |
718e3744 | 321 | |
d62a17ae | 322 | pinfo->nd_opt_pi_type = ND_OPT_PREFIX_INFORMATION; |
323 | pinfo->nd_opt_pi_len = 4; | |
324 | pinfo->nd_opt_pi_prefix_len = rprefix->prefix.prefixlen; | |
325 | ||
326 | pinfo->nd_opt_pi_flags_reserved = 0; | |
327 | if (rprefix->AdvOnLinkFlag) | |
328 | pinfo->nd_opt_pi_flags_reserved |= | |
329 | ND_OPT_PI_FLAG_ONLINK; | |
330 | if (rprefix->AdvAutonomousFlag) | |
331 | pinfo->nd_opt_pi_flags_reserved |= ND_OPT_PI_FLAG_AUTO; | |
332 | if (rprefix->AdvRouterAddressFlag) | |
333 | pinfo->nd_opt_pi_flags_reserved |= ND_OPT_PI_FLAG_RADDR; | |
334 | ||
335 | pinfo->nd_opt_pi_valid_time = htonl(rprefix->AdvValidLifetime); | |
336 | pinfo->nd_opt_pi_preferred_time = | |
337 | htonl(rprefix->AdvPreferredLifetime); | |
338 | pinfo->nd_opt_pi_reserved2 = 0; | |
339 | ||
340 | IPV6_ADDR_COPY(&pinfo->nd_opt_pi_prefix, | |
341 | &rprefix->prefix.prefix); | |
342 | ||
d62a17ae | 343 | len += sizeof(struct nd_opt_prefix_info); |
344 | } | |
345 | ||
346 | /* Hardware address. */ | |
347 | if (ifp->hw_addr_len != 0) { | |
348 | buf[len++] = ND_OPT_SOURCE_LINKADDR; | |
349 | ||
350 | /* Option length should be rounded up to next octet if | |
351 | the link address does not end on an octet boundary. */ | |
352 | buf[len++] = (ifp->hw_addr_len + 9) >> 3; | |
353 | ||
354 | memcpy(buf + len, ifp->hw_addr, ifp->hw_addr_len); | |
355 | len += ifp->hw_addr_len; | |
356 | ||
357 | /* Pad option to end on an octet boundary. */ | |
358 | memset(buf + len, 0, -(ifp->hw_addr_len + 2) & 0x7); | |
359 | len += -(ifp->hw_addr_len + 2) & 0x7; | |
360 | } | |
361 | ||
362 | /* MTU */ | |
363 | if (zif->rtadv.AdvLinkMTU) { | |
364 | struct nd_opt_mtu *opt = (struct nd_opt_mtu *)(buf + len); | |
365 | opt->nd_opt_mtu_type = ND_OPT_MTU; | |
366 | opt->nd_opt_mtu_len = 1; | |
367 | opt->nd_opt_mtu_reserved = 0; | |
368 | opt->nd_opt_mtu_mtu = htonl(zif->rtadv.AdvLinkMTU); | |
369 | len += sizeof(struct nd_opt_mtu); | |
370 | } | |
371 | ||
7eab94f9 LS |
372 | /* |
373 | * There is no limit on the number of configurable recursive DNS | |
374 | * servers or search list entries. We don't want the RA message | |
375 | * to exceed the link's MTU (risking fragmentation) or even | |
376 | * blow the stack buffer allocated for it. | |
377 | */ | |
378 | size_t max_len = MIN(ifp->mtu6 - 40, sizeof(buf)); | |
379 | ||
3eb4fbb0 LS |
380 | /* Recursive DNS servers */ |
381 | struct rtadv_rdnss *rdnss; | |
382 | ||
383 | for (ALL_LIST_ELEMENTS_RO(zif->rtadv.AdvRDNSSList, node, rdnss)) { | |
7eab94f9 LS |
384 | size_t opt_len = |
385 | sizeof(struct nd_opt_rdnss) + sizeof(struct in6_addr); | |
386 | ||
387 | if (len + opt_len > max_len) { | |
60077146 DS |
388 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); |
389 | ||
7eab94f9 | 390 | zlog_warn( |
60077146 DS |
391 | "%s(%s:%u): Tx RA: RDNSS option would exceed MTU, omitting it", |
392 | ifp->name, VRF_LOGNAME(vrf), ifp->ifindex); | |
7eab94f9 LS |
393 | goto no_more_opts; |
394 | } | |
3eb4fbb0 LS |
395 | struct nd_opt_rdnss *opt = (struct nd_opt_rdnss *)(buf + len); |
396 | ||
397 | opt->nd_opt_rdnss_type = ND_OPT_RDNSS; | |
7eab94f9 | 398 | opt->nd_opt_rdnss_len = opt_len / 8; |
3eb4fbb0 LS |
399 | opt->nd_opt_rdnss_reserved = 0; |
400 | opt->nd_opt_rdnss_lifetime = htonl( | |
401 | rdnss->lifetime_set | |
402 | ? rdnss->lifetime | |
403 | : MAX(1, 0.003 * zif->rtadv.MaxRtrAdvInterval)); | |
404 | ||
405 | len += sizeof(struct nd_opt_rdnss); | |
7eab94f9 | 406 | |
3eb4fbb0 LS |
407 | IPV6_ADDR_COPY(buf + len, &rdnss->addr); |
408 | len += sizeof(struct in6_addr); | |
409 | } | |
410 | ||
411 | /* DNS search list */ | |
412 | struct rtadv_dnssl *dnssl; | |
413 | ||
414 | for (ALL_LIST_ELEMENTS_RO(zif->rtadv.AdvDNSSLList, node, dnssl)) { | |
7eab94f9 LS |
415 | size_t opt_len = sizeof(struct nd_opt_dnssl) |
416 | + ((dnssl->encoded_len + 7) & ~7); | |
417 | ||
418 | if (len + opt_len > max_len) { | |
419 | zlog_warn( | |
420 | "%s(%u): Tx RA: DNSSL option would exceed MTU, omitting it", | |
421 | ifp->name, ifp->ifindex); | |
422 | goto no_more_opts; | |
423 | } | |
3eb4fbb0 LS |
424 | struct nd_opt_dnssl *opt = (struct nd_opt_dnssl *)(buf + len); |
425 | ||
426 | opt->nd_opt_dnssl_type = ND_OPT_DNSSL; | |
7eab94f9 | 427 | opt->nd_opt_dnssl_len = opt_len / 8; |
3eb4fbb0 LS |
428 | opt->nd_opt_dnssl_reserved = 0; |
429 | opt->nd_opt_dnssl_lifetime = htonl( | |
430 | dnssl->lifetime_set | |
431 | ? dnssl->lifetime | |
432 | : MAX(1, 0.003 * zif->rtadv.MaxRtrAdvInterval)); | |
433 | ||
434 | len += sizeof(struct nd_opt_dnssl); | |
435 | ||
3eb4fbb0 LS |
436 | memcpy(buf + len, dnssl->encoded_name, dnssl->encoded_len); |
437 | len += dnssl->encoded_len; | |
438 | ||
439 | /* Zero-pad to 8-octet boundary */ | |
440 | while (len % 8) | |
441 | buf[len++] = '\0'; | |
3eb4fbb0 LS |
442 | } |
443 | ||
7eab94f9 LS |
444 | no_more_opts: |
445 | ||
d62a17ae | 446 | msg.msg_name = (void *)&addr; |
447 | msg.msg_namelen = sizeof(struct sockaddr_in6); | |
448 | msg.msg_iov = &iov; | |
449 | msg.msg_iovlen = 1; | |
450 | msg.msg_control = (void *)adata; | |
451 | msg.msg_controllen = CMSG_SPACE(sizeof(struct in6_pktinfo)); | |
452 | msg.msg_flags = 0; | |
453 | iov.iov_base = buf; | |
454 | iov.iov_len = len; | |
455 | ||
adf0e7c6 | 456 | cmsgptr = CMSG_FIRSTHDR(&msg); |
d62a17ae | 457 | cmsgptr->cmsg_len = CMSG_LEN(sizeof(struct in6_pktinfo)); |
458 | cmsgptr->cmsg_level = IPPROTO_IPV6; | |
459 | cmsgptr->cmsg_type = IPV6_PKTINFO; | |
460 | ||
461 | pkt = (struct in6_pktinfo *)CMSG_DATA(cmsgptr); | |
462 | memset(&pkt->ipi6_addr, 0, sizeof(struct in6_addr)); | |
463 | pkt->ipi6_ifindex = ifp->ifindex; | |
464 | ||
465 | ret = sendmsg(sock, &msg, 0); | |
466 | if (ret < 0) { | |
450971aa | 467 | flog_err_sys(EC_LIB_SOCKET, |
09c866e3 QY |
468 | "%s(%u): Tx RA failed, socket %u error %d (%s)", |
469 | ifp->name, ifp->ifindex, sock, errno, | |
470 | safe_strerror(errno)); | |
d62a17ae | 471 | } else |
472 | zif->ra_sent++; | |
718e3744 | 473 | } |
474 | ||
d62a17ae | 475 | static int rtadv_timer(struct thread *thread) |
718e3744 | 476 | { |
df9c8c57 | 477 | struct zebra_vrf *zvrf = THREAD_ARG(thread); |
d62a17ae | 478 | struct vrf *vrf; |
d62a17ae | 479 | struct interface *ifp; |
480 | struct zebra_if *zif; | |
481 | int period; | |
482 | ||
df9c8c57 PG |
483 | zvrf->rtadv.ra_timer = NULL; |
484 | if (zvrf->rtadv.adv_msec_if_count == 0) { | |
d62a17ae | 485 | period = 1000; /* 1 s */ |
df9c8c57 | 486 | rtadv_event(zvrf, RTADV_TIMER, 1 /* 1 s */); |
d62a17ae | 487 | } else { |
488 | period = 10; /* 10 ms */ | |
df9c8c57 | 489 | rtadv_event(zvrf, RTADV_TIMER_MSEC, 10 /* 10 ms */); |
d62a17ae | 490 | } |
491 | ||
a2addae8 | 492 | RB_FOREACH (vrf, vrf_id_head, &vrfs_by_id) |
451fda4f | 493 | FOR_ALL_INTERFACES (vrf, ifp) { |
a2addae8 RW |
494 | if (if_is_loopback(ifp) |
495 | || CHECK_FLAG(ifp->status, | |
496 | ZEBRA_INTERFACE_VRF_LOOPBACK) | |
497 | || !if_is_operative(ifp)) | |
498 | continue; | |
499 | ||
500 | zif = ifp->info; | |
501 | ||
502 | if (zif->rtadv.AdvSendAdvertisements) { | |
adee8f21 DS |
503 | if (zif->rtadv.inFastRexmit |
504 | && zif->rtadv.UseFastRexmit) { | |
a2addae8 RW |
505 | /* We assume we fast rexmit every sec so |
506 | * no | |
507 | * additional vars */ | |
508 | if (--zif->rtadv.NumFastReXmitsRemain | |
509 | <= 0) | |
510 | zif->rtadv.inFastRexmit = 0; | |
511 | ||
60077146 DS |
512 | if (IS_ZEBRA_DEBUG_SEND) { |
513 | struct vrf *vrf = | |
514 | vrf_lookup_by_id( | |
515 | ifp->vrf_id); | |
516 | ||
a2addae8 | 517 | zlog_debug( |
60077146 DS |
518 | "Fast RA Rexmit on interface %s(%s:%u)", |
519 | ifp->name, | |
520 | VRF_LOGNAME(vrf), | |
521 | ifp->ifindex); | |
522 | } | |
a2addae8 | 523 | |
9245fe61 | 524 | rtadv_send_packet(rtadv_get_socket(zvrf), |
d7fc0e67 | 525 | ifp, RA_ENABLE); |
a2addae8 RW |
526 | } else { |
527 | zif->rtadv.AdvIntervalTimer -= period; | |
528 | if (zif->rtadv.AdvIntervalTimer <= 0) { | |
529 | /* FIXME: using | |
530 | MaxRtrAdvInterval each | |
531 | time isn't what section | |
532 | 6.2.4 of RFC4861 tells to do. | |
533 | */ | |
534 | zif->rtadv.AdvIntervalTimer = | |
535 | zif->rtadv | |
536 | .MaxRtrAdvInterval; | |
537 | rtadv_send_packet( | |
9245fe61 | 538 | rtadv_get_socket(zvrf), |
d7fc0e67 | 539 | ifp, RA_ENABLE); |
a2addae8 | 540 | } |
d62a17ae | 541 | } |
542 | } | |
543 | } | |
d62a17ae | 544 | |
545 | return 0; | |
718e3744 | 546 | } |
547 | ||
d62a17ae | 548 | static void rtadv_process_solicit(struct interface *ifp) |
718e3744 | 549 | { |
a36898e7 | 550 | struct zebra_vrf *zvrf = vrf_info_lookup(ifp->vrf_id); |
adee8f21 | 551 | struct zebra_if *zif; |
718e3744 | 552 | |
df9c8c57 | 553 | assert(zvrf); |
adee8f21 DS |
554 | zif = ifp->info; |
555 | ||
556 | /* | |
557 | * If FastRetransmit is enabled, send the RA immediately. | |
558 | * If not enabled but it has been more than MIN_DELAY_BETWEEN_RAS | |
559 | * (3 seconds) since the last RA was sent, send it now and reset | |
560 | * the timer to start at the max (configured) again. | |
561 | * If not enabled and it is less than 3 seconds since the last | |
562 | * RA packet was sent, set the timer for 3 seconds so the next | |
563 | * one will be sent with a minimum of 3 seconds between RAs. | |
564 | * RFC4861 sec 6.2.6 | |
565 | */ | |
566 | if ((zif->rtadv.UseFastRexmit) | |
567 | || (zif->rtadv.AdvIntervalTimer <= | |
568 | (zif->rtadv.MaxRtrAdvInterval - MIN_DELAY_BETWEEN_RAS))) { | |
d7fc0e67 | 569 | rtadv_send_packet(rtadv_get_socket(zvrf), ifp, RA_ENABLE); |
adee8f21 DS |
570 | zif->rtadv.AdvIntervalTimer = zif->rtadv.MaxRtrAdvInterval; |
571 | } else | |
572 | zif->rtadv.AdvIntervalTimer = MIN_DELAY_BETWEEN_RAS; | |
718e3744 | 573 | } |
574 | ||
71974bf5 DS |
575 | /* |
576 | * This function processes optional attributes off of | |
577 | * end of a RA packet received. At this point in | |
578 | * time we only care about this in one situation | |
579 | * which is when a interface does not have a LL | |
580 | * v6 address. We still need to be able to install | |
581 | * the mac address for v4 to v6 resolution | |
582 | */ | |
583 | static void rtadv_process_optional(uint8_t *optional, unsigned int len, | |
584 | struct interface *ifp, | |
585 | struct sockaddr_in6 *addr) | |
586 | { | |
587 | char *mac; | |
588 | ||
589 | while (len > 0) { | |
590 | struct nd_opt_hdr *opt_hdr = (struct nd_opt_hdr *)optional; | |
591 | ||
592 | switch(opt_hdr->nd_opt_type) { | |
593 | case ND_OPT_SOURCE_LINKADDR: | |
594 | mac = (char *)(optional+2); | |
595 | if_nbr_mac_to_ipv4ll_neigh_update(ifp, mac, | |
596 | &addr->sin6_addr, 1); | |
597 | break; | |
598 | default: | |
599 | break; | |
600 | } | |
601 | ||
602 | len -= 8 * opt_hdr->nd_opt_len; | |
603 | optional += 8 * opt_hdr->nd_opt_len; | |
604 | } | |
605 | } | |
606 | ||
d7c0a89a | 607 | static void rtadv_process_advert(uint8_t *msg, unsigned int len, |
d62a17ae | 608 | struct interface *ifp, |
609 | struct sockaddr_in6 *addr) | |
718e3744 | 610 | { |
d62a17ae | 611 | struct nd_router_advert *radvert; |
612 | char addr_str[INET6_ADDRSTRLEN]; | |
613 | struct zebra_if *zif; | |
614 | struct prefix p; | |
718e3744 | 615 | |
d62a17ae | 616 | zif = ifp->info; |
a80beece | 617 | |
d62a17ae | 618 | inet_ntop(AF_INET6, &addr->sin6_addr, addr_str, INET6_ADDRSTRLEN); |
619 | ||
620 | if (len < sizeof(struct nd_router_advert)) { | |
60077146 DS |
621 | if (IS_ZEBRA_DEBUG_PACKET) { |
622 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); | |
623 | ||
624 | zlog_debug( | |
625 | "%s(%s:%u): Rx RA with invalid length %d from %s", | |
626 | ifp->name, VRF_LOGNAME(vrf), ifp->ifindex, len, | |
627 | addr_str); | |
628 | } | |
d62a17ae | 629 | return; |
630 | } | |
71974bf5 | 631 | |
d62a17ae | 632 | if (!IN6_IS_ADDR_LINKLOCAL(&addr->sin6_addr)) { |
71974bf5 DS |
633 | rtadv_process_optional(msg + sizeof(struct nd_router_advert), |
634 | len - sizeof(struct nd_router_advert), | |
635 | ifp, addr); | |
60077146 DS |
636 | if (IS_ZEBRA_DEBUG_PACKET) { |
637 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); | |
638 | ||
639 | zlog_debug( | |
640 | "%s(%s:%u): Rx RA with non-linklocal source address from %s", | |
641 | ifp->name, VRF_LOGNAME(vrf), ifp->ifindex, | |
642 | addr_str); | |
643 | } | |
d62a17ae | 644 | return; |
645 | } | |
646 | ||
647 | radvert = (struct nd_router_advert *)msg; | |
648 | ||
649 | if ((radvert->nd_ra_curhoplimit && zif->rtadv.AdvCurHopLimit) | |
650 | && (radvert->nd_ra_curhoplimit != zif->rtadv.AdvCurHopLimit)) { | |
9df414fe | 651 | flog_warn( |
e914ccbe | 652 | EC_ZEBRA_RA_PARAM_MISMATCH, |
d62a17ae | 653 | "%s(%u): Rx RA - our AdvCurHopLimit doesn't agree with %s", |
654 | ifp->name, ifp->ifindex, addr_str); | |
655 | } | |
656 | ||
657 | if ((radvert->nd_ra_flags_reserved & ND_RA_FLAG_MANAGED) | |
658 | && !zif->rtadv.AdvManagedFlag) { | |
9df414fe | 659 | flog_warn( |
e914ccbe | 660 | EC_ZEBRA_RA_PARAM_MISMATCH, |
d62a17ae | 661 | "%s(%u): Rx RA - our AdvManagedFlag doesn't agree with %s", |
662 | ifp->name, ifp->ifindex, addr_str); | |
663 | } | |
664 | ||
665 | if ((radvert->nd_ra_flags_reserved & ND_RA_FLAG_OTHER) | |
666 | && !zif->rtadv.AdvOtherConfigFlag) { | |
9df414fe | 667 | flog_warn( |
e914ccbe | 668 | EC_ZEBRA_RA_PARAM_MISMATCH, |
d62a17ae | 669 | "%s(%u): Rx RA - our AdvOtherConfigFlag doesn't agree with %s", |
670 | ifp->name, ifp->ifindex, addr_str); | |
671 | } | |
672 | ||
673 | if ((radvert->nd_ra_reachable && zif->rtadv.AdvReachableTime) | |
674 | && (ntohl(radvert->nd_ra_reachable) | |
675 | != zif->rtadv.AdvReachableTime)) { | |
9df414fe | 676 | flog_warn( |
e914ccbe | 677 | EC_ZEBRA_RA_PARAM_MISMATCH, |
d62a17ae | 678 | "%s(%u): Rx RA - our AdvReachableTime doesn't agree with %s", |
679 | ifp->name, ifp->ifindex, addr_str); | |
680 | } | |
681 | ||
b19ac878 DS |
682 | if ((ntohl(radvert->nd_ra_retransmit) |
683 | != (unsigned int)zif->rtadv.AdvRetransTimer)) { | |
9df414fe | 684 | flog_warn( |
e914ccbe | 685 | EC_ZEBRA_RA_PARAM_MISMATCH, |
d62a17ae | 686 | "%s(%u): Rx RA - our AdvRetransTimer doesn't agree with %s", |
687 | ifp->name, ifp->ifindex, addr_str); | |
688 | } | |
689 | ||
690 | /* Create entry for neighbor if not known. */ | |
691 | p.family = AF_INET6; | |
a85297a7 | 692 | IPV6_ADDR_COPY(&p.u.prefix6, &addr->sin6_addr); |
d62a17ae | 693 | p.prefixlen = IPV6_MAX_PREFIXLEN; |
694 | ||
695 | if (!nbr_connected_check(ifp, &p)) | |
696 | nbr_connected_add_ipv6(ifp, &addr->sin6_addr); | |
718e3744 | 697 | } |
698 | ||
d62a17ae | 699 | |
d7c0a89a | 700 | static void rtadv_process_packet(uint8_t *buf, unsigned int len, |
d62a17ae | 701 | ifindex_t ifindex, int hoplimit, |
702 | struct sockaddr_in6 *from, | |
df9c8c57 | 703 | struct zebra_vrf *zvrf) |
718e3744 | 704 | { |
d62a17ae | 705 | struct icmp6_hdr *icmph; |
706 | struct interface *ifp; | |
707 | struct zebra_if *zif; | |
708 | char addr_str[INET6_ADDRSTRLEN]; | |
709 | ||
710 | inet_ntop(AF_INET6, &from->sin6_addr, addr_str, INET6_ADDRSTRLEN); | |
711 | ||
712 | /* Interface search. */ | |
df9c8c57 | 713 | ifp = if_lookup_by_index(ifindex, zvrf->vrf->vrf_id); |
d62a17ae | 714 | if (ifp == NULL) { |
e914ccbe | 715 | flog_warn(EC_ZEBRA_UNKNOWN_INTERFACE, |
9df414fe | 716 | "RA/RS received on unknown IF %u from %s", ifindex, |
d62a17ae | 717 | addr_str); |
718 | return; | |
719 | } | |
720 | ||
60077146 DS |
721 | if (IS_ZEBRA_DEBUG_PACKET) { |
722 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); | |
723 | ||
724 | zlog_debug("%s(%s:%u): Rx RA/RS len %d from %s", ifp->name, | |
725 | VRF_LOGNAME(vrf), ifp->ifindex, len, addr_str); | |
726 | } | |
d62a17ae | 727 | |
728 | if (if_is_loopback(ifp) | |
729 | || CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK)) | |
730 | return; | |
718e3744 | 731 | |
d62a17ae | 732 | /* Check interface configuration. */ |
733 | zif = ifp->info; | |
734 | if (!zif->rtadv.AdvSendAdvertisements) | |
735 | return; | |
718e3744 | 736 | |
d62a17ae | 737 | /* ICMP message length check. */ |
738 | if (len < sizeof(struct icmp6_hdr)) { | |
60077146 DS |
739 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); |
740 | ||
741 | zlog_debug( | |
742 | "%s(%s:%u): Rx RA with Invalid ICMPV6 packet length %d", | |
743 | ifp->name, VRF_LOGNAME(vrf), ifp->ifindex, len); | |
d62a17ae | 744 | return; |
745 | } | |
746 | ||
747 | icmph = (struct icmp6_hdr *)buf; | |
718e3744 | 748 | |
d62a17ae | 749 | /* ICMP message type check. */ |
750 | if (icmph->icmp6_type != ND_ROUTER_SOLICIT | |
751 | && icmph->icmp6_type != ND_ROUTER_ADVERT) { | |
60077146 DS |
752 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); |
753 | ||
754 | zlog_debug("%s(%s:%u): Rx RA - Unwanted ICMPV6 message type %d", | |
755 | ifp->name, VRF_LOGNAME(vrf), ifp->ifindex, | |
756 | icmph->icmp6_type); | |
d62a17ae | 757 | return; |
758 | } | |
718e3744 | 759 | |
d62a17ae | 760 | /* Hoplimit check. */ |
761 | if (hoplimit >= 0 && hoplimit != 255) { | |
60077146 DS |
762 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); |
763 | ||
764 | zlog_debug("%s(%s:%u): Rx RA - Invalid hoplimit %d", ifp->name, | |
765 | VRF_LOGNAME(vrf), ifp->ifindex, hoplimit); | |
d62a17ae | 766 | return; |
767 | } | |
718e3744 | 768 | |
d62a17ae | 769 | /* Check ICMP message type. */ |
770 | if (icmph->icmp6_type == ND_ROUTER_SOLICIT) | |
771 | rtadv_process_solicit(ifp); | |
772 | else if (icmph->icmp6_type == ND_ROUTER_ADVERT) | |
773 | rtadv_process_advert(buf, len, ifp, from); | |
718e3744 | 774 | |
d62a17ae | 775 | return; |
718e3744 | 776 | } |
777 | ||
d62a17ae | 778 | static int rtadv_read(struct thread *thread) |
718e3744 | 779 | { |
d62a17ae | 780 | int sock; |
781 | int len; | |
d7c0a89a | 782 | uint8_t buf[RTADV_MSG_SIZE]; |
d62a17ae | 783 | struct sockaddr_in6 from; |
784 | ifindex_t ifindex = 0; | |
785 | int hoplimit = -1; | |
df9c8c57 | 786 | struct zebra_vrf *zvrf = THREAD_ARG(thread); |
d62a17ae | 787 | |
788 | sock = THREAD_FD(thread); | |
df9c8c57 | 789 | zvrf->rtadv.ra_read = NULL; |
d62a17ae | 790 | |
791 | /* Register myself. */ | |
df9c8c57 | 792 | rtadv_event(zvrf, RTADV_READ, sock); |
d62a17ae | 793 | |
df9c8c57 | 794 | len = rtadv_recv_packet(zvrf, sock, buf, sizeof(buf), &from, &ifindex, |
d62a17ae | 795 | &hoplimit); |
796 | ||
797 | if (len < 0) { | |
450971aa | 798 | flog_err_sys(EC_LIB_SOCKET, |
9df414fe QY |
799 | "RA/RS recv failed, socket %u error %s", sock, |
800 | safe_strerror(errno)); | |
d62a17ae | 801 | return len; |
802 | } | |
803 | ||
df9c8c57 | 804 | rtadv_process_packet(buf, (unsigned)len, ifindex, hoplimit, &from, zvrf); |
d62a17ae | 805 | |
806 | return 0; | |
718e3744 | 807 | } |
6b0655a2 | 808 | |
fe533c56 | 809 | static int rtadv_make_socket(ns_id_t ns_id) |
718e3744 | 810 | { |
8d2dcc85 | 811 | int sock = -1; |
d62a17ae | 812 | int ret = 0; |
813 | struct icmp6_filter filter; | |
814 | ||
0cf6db21 | 815 | frr_with_privs(&zserv_privs) { |
d62a17ae | 816 | |
01b9e3fd | 817 | sock = ns_socket(AF_INET6, SOCK_RAW, IPPROTO_ICMPV6, ns_id); |
d62a17ae | 818 | |
01b9e3fd | 819 | } |
d62a17ae | 820 | |
821 | if (sock < 0) { | |
d62a17ae | 822 | return -1; |
823 | } | |
824 | ||
825 | ret = setsockopt_ipv6_pktinfo(sock, 1); | |
826 | if (ret < 0) { | |
827 | close(sock); | |
828 | return ret; | |
829 | } | |
830 | ret = setsockopt_ipv6_multicast_loop(sock, 0); | |
831 | if (ret < 0) { | |
832 | close(sock); | |
833 | return ret; | |
834 | } | |
835 | ret = setsockopt_ipv6_unicast_hops(sock, 255); | |
836 | if (ret < 0) { | |
837 | close(sock); | |
838 | return ret; | |
839 | } | |
840 | ret = setsockopt_ipv6_multicast_hops(sock, 255); | |
841 | if (ret < 0) { | |
842 | close(sock); | |
843 | return ret; | |
844 | } | |
845 | ret = setsockopt_ipv6_hoplimit(sock, 1); | |
846 | if (ret < 0) { | |
847 | close(sock); | |
848 | return ret; | |
849 | } | |
850 | ||
851 | ICMP6_FILTER_SETBLOCKALL(&filter); | |
852 | ICMP6_FILTER_SETPASS(ND_ROUTER_SOLICIT, &filter); | |
853 | ICMP6_FILTER_SETPASS(ND_ROUTER_ADVERT, &filter); | |
854 | ||
855 | ret = setsockopt(sock, IPPROTO_ICMPV6, ICMP6_FILTER, &filter, | |
856 | sizeof(struct icmp6_filter)); | |
857 | if (ret < 0) { | |
858 | zlog_info("ICMP6_FILTER set fail: %s", safe_strerror(errno)); | |
44f12f20 | 859 | close(sock); |
d62a17ae | 860 | return ret; |
861 | } | |
862 | ||
863 | return sock; | |
718e3744 | 864 | } |
865 | ||
d62a17ae | 866 | static struct rtadv_prefix *rtadv_prefix_new(void) |
718e3744 | 867 | { |
d62a17ae | 868 | return XCALLOC(MTYPE_RTADV_PREFIX, sizeof(struct rtadv_prefix)); |
718e3744 | 869 | } |
870 | ||
d62a17ae | 871 | static void rtadv_prefix_free(struct rtadv_prefix *rtadv_prefix) |
718e3744 | 872 | { |
d62a17ae | 873 | XFREE(MTYPE_RTADV_PREFIX, rtadv_prefix); |
874 | } | |
718e3744 | 875 | |
d62a17ae | 876 | static struct rtadv_prefix *rtadv_prefix_lookup(struct list *rplist, |
877 | struct prefix_ipv6 *p) | |
878 | { | |
879 | struct listnode *node; | |
880 | struct rtadv_prefix *rprefix; | |
881 | ||
882 | for (ALL_LIST_ELEMENTS_RO(rplist, node, rprefix)) | |
883 | if (prefix_same((struct prefix *)&rprefix->prefix, | |
884 | (struct prefix *)p)) | |
885 | return rprefix; | |
886 | return NULL; | |
718e3744 | 887 | } |
888 | ||
d62a17ae | 889 | static struct rtadv_prefix *rtadv_prefix_get(struct list *rplist, |
890 | struct prefix_ipv6 *p) | |
718e3744 | 891 | { |
d62a17ae | 892 | struct rtadv_prefix *rprefix; |
893 | ||
894 | rprefix = rtadv_prefix_lookup(rplist, p); | |
895 | if (rprefix) | |
896 | return rprefix; | |
718e3744 | 897 | |
d62a17ae | 898 | rprefix = rtadv_prefix_new(); |
899 | memcpy(&rprefix->prefix, p, sizeof(struct prefix_ipv6)); | |
900 | listnode_add(rplist, rprefix); | |
718e3744 | 901 | |
d62a17ae | 902 | return rprefix; |
718e3744 | 903 | } |
904 | ||
2a855763 DS |
905 | static void rtadv_prefix_set_defaults(struct rtadv_prefix *rp) |
906 | { | |
907 | rp->AdvAutonomousFlag = 1; | |
908 | rp->AdvOnLinkFlag = 1; | |
909 | rp->AdvRouterAddressFlag = 0; | |
910 | rp->AdvPreferredLifetime = RTADV_PREFERRED_LIFETIME; | |
911 | rp->AdvValidLifetime = RTADV_VALID_LIFETIME; | |
912 | } | |
913 | ||
d62a17ae | 914 | static void rtadv_prefix_set(struct zebra_if *zif, struct rtadv_prefix *rp) |
718e3744 | 915 | { |
d62a17ae | 916 | struct rtadv_prefix *rprefix; |
917 | ||
918 | rprefix = rtadv_prefix_get(zif->rtadv.AdvPrefixList, &rp->prefix); | |
919 | ||
2a855763 DS |
920 | /* |
921 | * Set parameters based on where the prefix is created. | |
922 | * If auto-created based on kernel address addition, set the | |
923 | * default values. If created from a manual "ipv6 nd prefix" | |
924 | * command, take the parameters from the manual command. Note | |
925 | * that if the manual command exists, the default values will | |
926 | * not overwrite the manual values. | |
927 | */ | |
928 | if (rp->AdvPrefixCreate == PREFIX_SRC_MANUAL) { | |
929 | if (rprefix->AdvPrefixCreate == PREFIX_SRC_AUTO) | |
930 | rprefix->AdvPrefixCreate = PREFIX_SRC_BOTH; | |
931 | else | |
932 | rprefix->AdvPrefixCreate = PREFIX_SRC_MANUAL; | |
933 | ||
934 | rprefix->AdvAutonomousFlag = rp->AdvAutonomousFlag; | |
935 | rprefix->AdvOnLinkFlag = rp->AdvOnLinkFlag; | |
936 | rprefix->AdvRouterAddressFlag = rp->AdvRouterAddressFlag; | |
937 | rprefix->AdvPreferredLifetime = rp->AdvPreferredLifetime; | |
938 | rprefix->AdvValidLifetime = rp->AdvValidLifetime; | |
939 | } else if (rp->AdvPrefixCreate == PREFIX_SRC_AUTO) { | |
940 | if (rprefix->AdvPrefixCreate == PREFIX_SRC_MANUAL) | |
941 | rprefix->AdvPrefixCreate = PREFIX_SRC_BOTH; | |
942 | else { | |
943 | rprefix->AdvPrefixCreate = PREFIX_SRC_AUTO; | |
944 | rtadv_prefix_set_defaults(rprefix); | |
945 | } | |
946 | } | |
718e3744 | 947 | } |
948 | ||
d62a17ae | 949 | static int rtadv_prefix_reset(struct zebra_if *zif, struct rtadv_prefix *rp) |
718e3744 | 950 | { |
d62a17ae | 951 | struct rtadv_prefix *rprefix; |
952 | ||
953 | rprefix = rtadv_prefix_lookup(zif->rtadv.AdvPrefixList, &rp->prefix); | |
954 | if (rprefix != NULL) { | |
2a855763 DS |
955 | |
956 | /* | |
957 | * When deleting an address from the list, need to take care | |
958 | * it wasn't defined both automatically via kernel | |
959 | * address addition as well as manually by vtysh cli. If both, | |
960 | * we don't actually delete but may change the parameters | |
961 | * back to default if a manually defined entry is deleted. | |
962 | */ | |
963 | if (rp->AdvPrefixCreate == PREFIX_SRC_MANUAL) { | |
964 | if (rprefix->AdvPrefixCreate == PREFIX_SRC_BOTH) { | |
965 | rprefix->AdvPrefixCreate = PREFIX_SRC_AUTO; | |
966 | rtadv_prefix_set_defaults(rprefix); | |
967 | return 1; | |
968 | } | |
969 | } else if (rp->AdvPrefixCreate == PREFIX_SRC_AUTO) { | |
970 | if (rprefix->AdvPrefixCreate == PREFIX_SRC_BOTH) { | |
971 | rprefix->AdvPrefixCreate = PREFIX_SRC_MANUAL; | |
972 | return 1; | |
973 | } | |
974 | } | |
975 | ||
d62a17ae | 976 | listnode_delete(zif->rtadv.AdvPrefixList, (void *)rprefix); |
977 | rtadv_prefix_free(rprefix); | |
978 | return 1; | |
979 | } else | |
980 | return 0; | |
718e3744 | 981 | } |
982 | ||
2a855763 DS |
983 | /* Add IPv6 prefixes learned from the kernel to the RA prefix list */ |
984 | void rtadv_add_prefix(struct zebra_if *zif, const struct prefix_ipv6 *p) | |
985 | { | |
986 | struct rtadv_prefix rp; | |
987 | ||
988 | rp.prefix = *p; | |
989 | apply_mask_ipv6(&rp.prefix); | |
990 | rp.AdvPrefixCreate = PREFIX_SRC_AUTO; | |
991 | rtadv_prefix_set(zif, &rp); | |
992 | } | |
993 | ||
994 | /* Delete IPv6 prefixes removed by the kernel from the RA prefix list */ | |
995 | void rtadv_delete_prefix(struct zebra_if *zif, const struct prefix *p) | |
996 | { | |
997 | struct rtadv_prefix rp; | |
998 | ||
999 | rp.prefix = *((struct prefix_ipv6 *)p); | |
1000 | apply_mask_ipv6(&rp.prefix); | |
1001 | rp.AdvPrefixCreate = PREFIX_SRC_AUTO; | |
1002 | rtadv_prefix_reset(zif, &rp); | |
1003 | } | |
1004 | ||
d62a17ae | 1005 | static void ipv6_nd_suppress_ra_set(struct interface *ifp, |
57dd8642 | 1006 | enum ipv6_nd_suppress_ra_status status) |
b6120505 | 1007 | { |
d62a17ae | 1008 | struct zebra_if *zif; |
1009 | struct zebra_vrf *zvrf; | |
d62a17ae | 1010 | |
1011 | zif = ifp->info; | |
a36898e7 | 1012 | zvrf = vrf_info_lookup(ifp->vrf_id); |
d62a17ae | 1013 | |
1014 | if (status == RA_SUPPRESS) { | |
1015 | /* RA is currently enabled */ | |
1016 | if (zif->rtadv.AdvSendAdvertisements) { | |
d7fc0e67 DS |
1017 | rtadv_send_packet(rtadv_get_socket(zvrf), ifp, |
1018 | RA_SUPPRESS); | |
d62a17ae | 1019 | zif->rtadv.AdvSendAdvertisements = 0; |
1020 | zif->rtadv.AdvIntervalTimer = 0; | |
df9c8c57 | 1021 | zvrf->rtadv.adv_if_count--; |
d62a17ae | 1022 | |
9245fe61 | 1023 | if_leave_all_router(rtadv_get_socket(zvrf), ifp); |
d62a17ae | 1024 | |
df9c8c57 PG |
1025 | if (zvrf->rtadv.adv_if_count == 0) |
1026 | rtadv_event(zvrf, RTADV_STOP, 0); | |
d62a17ae | 1027 | } |
1028 | } else { | |
1029 | if (!zif->rtadv.AdvSendAdvertisements) { | |
1030 | zif->rtadv.AdvSendAdvertisements = 1; | |
1031 | zif->rtadv.AdvIntervalTimer = 0; | |
df9c8c57 | 1032 | zvrf->rtadv.adv_if_count++; |
d62a17ae | 1033 | |
adee8f21 DS |
1034 | if ((zif->rtadv.MaxRtrAdvInterval >= 1000) |
1035 | && zif->rtadv.UseFastRexmit) { | |
1036 | /* | |
1037 | * Enable Fast RA only when RA interval is in | |
1038 | * secs and Fast RA retransmit is enabled | |
1039 | */ | |
d62a17ae | 1040 | zif->rtadv.inFastRexmit = 1; |
1041 | zif->rtadv.NumFastReXmitsRemain = | |
1042 | RTADV_NUM_FAST_REXMITS; | |
1043 | } | |
1044 | ||
9245fe61 | 1045 | if_join_all_router(rtadv_get_socket(zvrf), ifp); |
d62a17ae | 1046 | |
df9c8c57 PG |
1047 | if (zvrf->rtadv.adv_if_count == 1) |
1048 | rtadv_event(zvrf, RTADV_START, | |
9245fe61 | 1049 | rtadv_get_socket(zvrf)); |
d62a17ae | 1050 | } |
1051 | } | |
b6120505 DW |
1052 | } |
1053 | ||
4a04e5f7 | 1054 | /* |
1055 | * Handle client (BGP) message to enable or disable IPv6 RA on an interface. | |
1056 | * Note that while the client could request RA on an interface on which the | |
1057 | * operator has not enabled RA, RA won't be disabled upon client request | |
5c81b96a | 1058 | * if the operator has explicitly enabled RA. The enable request can also |
1059 | * specify a RA interval (in seconds). | |
4a04e5f7 | 1060 | */ |
1002497a | 1061 | static void zebra_interface_radv_set(ZAPI_HANDLER_ARGS, int enable) |
4a04e5f7 | 1062 | { |
d62a17ae | 1063 | struct stream *s; |
ec93aa12 | 1064 | ifindex_t ifindex; |
d62a17ae | 1065 | struct interface *ifp; |
1066 | struct zebra_if *zif; | |
40441c3d | 1067 | int ra_interval_rxd; |
d62a17ae | 1068 | |
1002497a | 1069 | s = msg; |
d62a17ae | 1070 | |
1071 | /* Get interface index and RA interval. */ | |
ec93aa12 | 1072 | STREAM_GETL(s, ifindex); |
40441c3d QY |
1073 | STREAM_GETL(s, ra_interval_rxd); |
1074 | ||
1075 | if (ra_interval_rxd < 0) { | |
1076 | zlog_warn( | |
1077 | "Requested RA interval %d is garbage; ignoring request", | |
1078 | ra_interval_rxd); | |
1079 | return; | |
1080 | } | |
1081 | ||
1082 | unsigned int ra_interval = ra_interval_rxd; | |
d62a17ae | 1083 | |
60077146 DS |
1084 | if (IS_ZEBRA_DEBUG_EVENT) { |
1085 | struct vrf *vrf = zvrf->vrf; | |
1086 | ||
1087 | zlog_debug("%s:%u: IF %u RA %s from client %s, interval %ums", | |
1088 | VRF_LOGNAME(vrf), zvrf_id(zvrf), ifindex, | |
1002497a | 1089 | enable ? "enable" : "disable", |
d62a17ae | 1090 | zebra_route_string(client->proto), ra_interval); |
60077146 | 1091 | } |
d62a17ae | 1092 | |
1093 | /* Locate interface and check VRF match. */ | |
df9c8c57 | 1094 | ifp = if_lookup_by_index(ifindex, zvrf->vrf->vrf_id); |
d62a17ae | 1095 | if (!ifp) { |
60077146 DS |
1096 | struct vrf *vrf = zvrf->vrf; |
1097 | ||
e914ccbe | 1098 | flog_warn(EC_ZEBRA_UNKNOWN_INTERFACE, |
60077146 DS |
1099 | "%s:%u: IF %u RA %s client %s - interface unknown", |
1100 | VRF_LOGNAME(vrf), zvrf_id(zvrf), ifindex, | |
1101 | enable ? "enable" : "disable", | |
d62a17ae | 1102 | zebra_route_string(client->proto)); |
1103 | return; | |
1104 | } | |
a36898e7 | 1105 | if (ifp->vrf_id != zvrf_id(zvrf)) { |
60077146 DS |
1106 | struct vrf *vrf = zvrf->vrf; |
1107 | ||
9df414fe | 1108 | zlog_debug( |
60077146 DS |
1109 | "%s:%u: IF %u RA %s client %s - VRF mismatch, IF VRF %u", |
1110 | VRF_LOGNAME(vrf), zvrf_id(zvrf), ifindex, | |
1111 | enable ? "enable" : "disable", | |
a36898e7 | 1112 | zebra_route_string(client->proto), ifp->vrf_id); |
d62a17ae | 1113 | return; |
1114 | } | |
1115 | ||
1116 | zif = ifp->info; | |
1002497a | 1117 | if (enable) { |
3ea48364 | 1118 | SET_FLAG(zif->rtadv.ra_configured, BGP_RA_CONFIGURED); |
d62a17ae | 1119 | ipv6_nd_suppress_ra_set(ifp, RA_ENABLE); |
1120 | if (ra_interval | |
40441c3d | 1121 | && (ra_interval * 1000) < (unsigned int) zif->rtadv.MaxRtrAdvInterval |
996c9314 LB |
1122 | && !CHECK_FLAG(zif->rtadv.ra_configured, |
1123 | VTY_RA_INTERVAL_CONFIGURED)) | |
d62a17ae | 1124 | zif->rtadv.MaxRtrAdvInterval = ra_interval * 1000; |
1125 | } else { | |
3ea48364 DS |
1126 | UNSET_FLAG(zif->rtadv.ra_configured, BGP_RA_CONFIGURED); |
1127 | if (!CHECK_FLAG(zif->rtadv.ra_configured, | |
1128 | VTY_RA_INTERVAL_CONFIGURED)) | |
d62a17ae | 1129 | zif->rtadv.MaxRtrAdvInterval = |
1130 | RTADV_MAX_RTR_ADV_INTERVAL; | |
3ea48364 | 1131 | if (!CHECK_FLAG(zif->rtadv.ra_configured, VTY_RA_CONFIGURED)) |
d62a17ae | 1132 | ipv6_nd_suppress_ra_set(ifp, RA_SUPPRESS); |
d62a17ae | 1133 | } |
ec93aa12 DS |
1134 | stream_failure: |
1135 | return; | |
4a04e5f7 | 1136 | } |
1137 | ||
d7fc0e67 DS |
1138 | /* |
1139 | * send router lifetime value of zero in RAs on this interface since we're | |
1140 | * ceasing to advertise and want to let our neighbors know. | |
1141 | * RFC 4861 secion 6.2.5 | |
1142 | */ | |
1143 | void rtadv_stop_ra(struct interface *ifp) | |
1144 | { | |
1145 | struct zebra_if *zif; | |
1146 | struct zebra_vrf *zvrf; | |
1147 | ||
1148 | zif = ifp->info; | |
1149 | zvrf = vrf_info_lookup(ifp->vrf_id); | |
1150 | ||
1151 | if (zif->rtadv.AdvSendAdvertisements) | |
1152 | rtadv_send_packet(rtadv_get_socket(zvrf), ifp, RA_SUPPRESS); | |
1153 | } | |
1154 | ||
1155 | /* | |
5a7aea85 | 1156 | * Send router lifetime value of zero in RAs on all interfaces since we're |
d7fc0e67 DS |
1157 | * ceasing to advertise globally and want to let all of our neighbors know |
1158 | * RFC 4861 secion 6.2.5 | |
5a7aea85 DS |
1159 | * |
1160 | * Delete all ipv6 global prefixes added to the router advertisement prefix | |
1161 | * lists prior to ceasing. | |
d7fc0e67 DS |
1162 | */ |
1163 | void rtadv_stop_ra_all(void) | |
1164 | { | |
1165 | struct vrf *vrf; | |
1166 | struct interface *ifp; | |
5a7aea85 DS |
1167 | struct listnode *node, *nnode; |
1168 | struct zebra_if *zif; | |
1169 | struct rtadv_prefix *rprefix; | |
d7fc0e67 DS |
1170 | |
1171 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) | |
5a7aea85 DS |
1172 | FOR_ALL_INTERFACES (vrf, ifp) { |
1173 | zif = ifp->info; | |
1174 | ||
1175 | for (ALL_LIST_ELEMENTS(zif->rtadv.AdvPrefixList, | |
1176 | node, nnode, rprefix)) | |
1177 | rtadv_prefix_reset(zif, rprefix); | |
1178 | ||
d7fc0e67 | 1179 | rtadv_stop_ra(ifp); |
5a7aea85 | 1180 | } |
d7fc0e67 DS |
1181 | } |
1182 | ||
89f4e507 QY |
1183 | void zebra_interface_radv_disable(ZAPI_HANDLER_ARGS) |
1184 | { | |
1002497a | 1185 | zebra_interface_radv_set(client, hdr, msg, zvrf, 0); |
89f4e507 | 1186 | } |
89f4e507 QY |
1187 | void zebra_interface_radv_enable(ZAPI_HANDLER_ARGS) |
1188 | { | |
1002497a | 1189 | zebra_interface_radv_set(client, hdr, msg, zvrf, 1); |
89f4e507 QY |
1190 | } |
1191 | ||
adee8f21 DS |
1192 | DEFUN (ipv6_nd_ra_fast_retrans, |
1193 | ipv6_nd_ra_fast_retrans_cmd, | |
1194 | "ipv6 nd ra-fast-retrans", | |
1195 | "Interface IPv6 config commands\n" | |
1196 | "Neighbor discovery\n" | |
1197 | "Fast retransmit of RA packets\n") | |
1198 | { | |
1199 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1200 | struct zebra_if *zif = ifp->info; | |
1201 | ||
1202 | if (if_is_loopback(ifp) | |
1203 | || CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK)) { | |
1204 | vty_out(vty, | |
1205 | "Cannot configure IPv6 Router Advertisements on this interface\n"); | |
1206 | return CMD_WARNING_CONFIG_FAILED; | |
1207 | } | |
1208 | ||
1209 | zif->rtadv.UseFastRexmit = true; | |
1210 | ||
1211 | return CMD_SUCCESS; | |
1212 | } | |
1213 | ||
1214 | DEFUN (no_ipv6_nd_ra_fast_retrans, | |
1215 | no_ipv6_nd_ra_fast_retrans_cmd, | |
1216 | "no ipv6 nd ra-fast-retrans", | |
1217 | NO_STR | |
1218 | "Interface IPv6 config commands\n" | |
1219 | "Neighbor discovery\n" | |
1220 | "Fast retransmit of RA packets\n") | |
1221 | { | |
1222 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1223 | struct zebra_if *zif = ifp->info; | |
1224 | ||
1225 | if (if_is_loopback(ifp) | |
1226 | || CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK)) { | |
1227 | vty_out(vty, | |
1228 | "Cannot configure IPv6 Router Advertisements on this interface\n"); | |
1229 | return CMD_WARNING_CONFIG_FAILED; | |
1230 | } | |
1231 | ||
1232 | zif->rtadv.UseFastRexmit = false; | |
1233 | ||
1234 | return CMD_SUCCESS; | |
1235 | } | |
1236 | ||
fae01935 DS |
1237 | DEFPY (ipv6_nd_ra_hop_limit, |
1238 | ipv6_nd_ra_hop_limit_cmd, | |
1239 | "ipv6 nd ra-hop-limit (0-255)$hopcount", | |
1240 | "Interface IPv6 config commands\n" | |
1241 | "Neighbor discovery\n" | |
1242 | "Advertisement Hop Limit\n" | |
1243 | "Advertisement Hop Limit in hops (default:64)\n") | |
1244 | { | |
1245 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1246 | struct zebra_if *zif = ifp->info; | |
1247 | ||
1248 | if (if_is_loopback(ifp) | |
1249 | || CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK)) { | |
1250 | vty_out(vty, | |
1251 | "Cannot configure IPv6 Router Advertisements on this interface\n"); | |
1252 | return CMD_WARNING_CONFIG_FAILED; | |
1253 | } | |
1254 | ||
1255 | zif->rtadv.AdvCurHopLimit = hopcount; | |
1256 | ||
1257 | return CMD_SUCCESS; | |
1258 | } | |
1259 | ||
1260 | DEFPY (no_ipv6_nd_ra_hop_limit, | |
1261 | no_ipv6_nd_ra_hop_limit_cmd, | |
1262 | "no ipv6 nd ra-hop-limit [(0-255)]", | |
1263 | NO_STR | |
1264 | "Interface IPv6 config commands\n" | |
1265 | "Neighbor discovery\n" | |
1266 | "Advertisement Hop Limit\n" | |
1267 | "Advertisement Hop Limit in hops\n") | |
1268 | { | |
1269 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1270 | struct zebra_if *zif = ifp->info; | |
1271 | ||
1272 | if (if_is_loopback(ifp) | |
1273 | || CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK)) { | |
1274 | vty_out(vty, | |
1275 | "Cannot configure IPv6 Router Advertisements on this interface\n"); | |
1276 | return CMD_WARNING_CONFIG_FAILED; | |
1277 | } | |
1278 | ||
1279 | zif->rtadv.AdvCurHopLimit = RTADV_DEFAULT_HOPLIMIT; | |
1280 | ||
1281 | return CMD_SUCCESS; | |
1282 | } | |
1283 | ||
b19ac878 DS |
1284 | DEFPY (ipv6_nd_ra_retrans_interval, |
1285 | ipv6_nd_ra_retrans_interval_cmd, | |
1286 | "ipv6 nd ra-retrans-interval (0-4294967295)$interval", | |
1287 | "Interface IPv6 config commands\n" | |
1288 | "Neighbor discovery\n" | |
1289 | "Advertisement Retransmit Interval\n" | |
1290 | "Advertisement Retransmit Interval in msec\n") | |
1291 | { | |
1292 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1293 | struct zebra_if *zif = ifp->info; | |
1294 | ||
1295 | if (if_is_loopback(ifp) | |
1296 | || CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK)) { | |
1297 | vty_out(vty, | |
1298 | "Cannot configure IPv6 Router Advertisements on loopback interface\n"); | |
1299 | return CMD_WARNING_CONFIG_FAILED; | |
1300 | } | |
1301 | ||
1302 | zif->rtadv.AdvRetransTimer = interval; | |
1303 | ||
1304 | return CMD_SUCCESS; | |
1305 | } | |
1306 | ||
1307 | DEFPY (no_ipv6_nd_ra_retrans_interval, | |
1308 | no_ipv6_nd_ra_retrans_interval_cmd, | |
1309 | "no ipv6 nd ra-retrans-interval [(0-4294967295)]", | |
1310 | NO_STR | |
1311 | "Interface IPv6 config commands\n" | |
1312 | "Neighbor discovery\n" | |
1313 | "Advertisement Retransmit Interval\n" | |
1314 | "Advertisement Retransmit Interval in msec\n") | |
1315 | { | |
1316 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1317 | struct zebra_if *zif = ifp->info; | |
1318 | ||
1319 | if (if_is_loopback(ifp) | |
1320 | || CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK)) { | |
1321 | vty_out(vty, | |
1322 | "Cannot remove IPv6 Router Advertisements on loopback interface\n"); | |
1323 | return CMD_WARNING_CONFIG_FAILED; | |
1324 | } | |
1325 | ||
1326 | zif->rtadv.AdvRetransTimer = 0; | |
1327 | ||
1328 | return CMD_SUCCESS; | |
1329 | } | |
1330 | ||
718e3744 | 1331 | DEFUN (ipv6_nd_suppress_ra, |
1332 | ipv6_nd_suppress_ra_cmd, | |
1333 | "ipv6 nd suppress-ra", | |
3e31cded | 1334 | "Interface IPv6 config commands\n" |
718e3744 | 1335 | "Neighbor discovery\n" |
1336 | "Suppress Router Advertisement\n") | |
1337 | { | |
d62a17ae | 1338 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1339 | struct zebra_if *zif = ifp->info; | |
1340 | ||
1341 | if (if_is_loopback(ifp) | |
1342 | || CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK)) { | |
1343 | vty_out(vty, | |
1344 | "Cannot configure IPv6 Router Advertisements on this interface\n"); | |
1345 | return CMD_WARNING_CONFIG_FAILED; | |
1346 | } | |
1347 | ||
3ea48364 DS |
1348 | if (!CHECK_FLAG(zif->rtadv.ra_configured, BGP_RA_CONFIGURED)) |
1349 | ipv6_nd_suppress_ra_set(ifp, RA_SUPPRESS); | |
1350 | ||
1351 | UNSET_FLAG(zif->rtadv.ra_configured, VTY_RA_CONFIGURED); | |
d62a17ae | 1352 | return CMD_SUCCESS; |
718e3744 | 1353 | } |
1354 | ||
718e3744 | 1355 | DEFUN (no_ipv6_nd_suppress_ra, |
1356 | no_ipv6_nd_suppress_ra_cmd, | |
1357 | "no ipv6 nd suppress-ra", | |
1358 | NO_STR | |
3e31cded | 1359 | "Interface IPv6 config commands\n" |
718e3744 | 1360 | "Neighbor discovery\n" |
1361 | "Suppress Router Advertisement\n") | |
1362 | { | |
d62a17ae | 1363 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1364 | struct zebra_if *zif = ifp->info; | |
1365 | ||
1366 | if (if_is_loopback(ifp) | |
1367 | || CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK)) { | |
1368 | vty_out(vty, | |
1369 | "Cannot configure IPv6 Router Advertisements on this interface\n"); | |
1370 | return CMD_WARNING_CONFIG_FAILED; | |
1371 | } | |
1372 | ||
1373 | ipv6_nd_suppress_ra_set(ifp, RA_ENABLE); | |
3ea48364 | 1374 | SET_FLAG(zif->rtadv.ra_configured, VTY_RA_CONFIGURED); |
d62a17ae | 1375 | return CMD_SUCCESS; |
718e3744 | 1376 | } |
1377 | ||
7cee1bb1 | 1378 | DEFUN (ipv6_nd_ra_interval_msec, |
1379 | ipv6_nd_ra_interval_msec_cmd, | |
6147e2c6 | 1380 | "ipv6 nd ra-interval msec (70-1800000)", |
7cee1bb1 | 1381 | "Interface IPv6 config commands\n" |
1382 | "Neighbor discovery\n" | |
1383 | "Router Advertisement interval\n" | |
3a2d747c | 1384 | "Router Advertisement interval in milliseconds\n" |
7cee1bb1 | 1385 | "Router Advertisement interval in milliseconds\n") |
1386 | { | |
d62a17ae | 1387 | int idx_number = 4; |
1388 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1389 | unsigned interval; | |
1390 | struct zebra_if *zif = ifp->info; | |
df9c8c57 PG |
1391 | struct zebra_vrf *zvrf; |
1392 | ||
a36898e7 | 1393 | zvrf = vrf_info_lookup(ifp->vrf_id); |
d62a17ae | 1394 | |
d62a17ae | 1395 | interval = strtoul(argv[idx_number]->arg, NULL, 10); |
1396 | if ((zif->rtadv.AdvDefaultLifetime != -1 | |
1397 | && interval > (unsigned)zif->rtadv.AdvDefaultLifetime * 1000)) { | |
1398 | vty_out(vty, | |
1399 | "This ra-interval would conflict with configured ra-lifetime!\n"); | |
1400 | return CMD_WARNING_CONFIG_FAILED; | |
1401 | } | |
1402 | ||
1403 | if (zif->rtadv.MaxRtrAdvInterval % 1000) | |
df9c8c57 | 1404 | zvrf->rtadv.adv_msec_if_count--; |
d62a17ae | 1405 | |
1406 | if (interval % 1000) | |
df9c8c57 | 1407 | zvrf->rtadv.adv_msec_if_count++; |
d62a17ae | 1408 | |
3ea48364 | 1409 | SET_FLAG(zif->rtadv.ra_configured, VTY_RA_INTERVAL_CONFIGURED); |
d62a17ae | 1410 | zif->rtadv.MaxRtrAdvInterval = interval; |
1411 | zif->rtadv.MinRtrAdvInterval = 0.33 * interval; | |
1412 | zif->rtadv.AdvIntervalTimer = 0; | |
1413 | ||
1414 | return CMD_SUCCESS; | |
7cee1bb1 | 1415 | } |
1416 | ||
718e3744 | 1417 | DEFUN (ipv6_nd_ra_interval, |
1418 | ipv6_nd_ra_interval_cmd, | |
6147e2c6 | 1419 | "ipv6 nd ra-interval (1-1800)", |
3e31cded | 1420 | "Interface IPv6 config commands\n" |
718e3744 | 1421 | "Neighbor discovery\n" |
1422 | "Router Advertisement interval\n" | |
1423 | "Router Advertisement interval in seconds\n") | |
1424 | { | |
d62a17ae | 1425 | int idx_number = 3; |
1426 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1427 | unsigned interval; | |
1428 | struct zebra_if *zif = ifp->info; | |
df9c8c57 PG |
1429 | struct zebra_vrf *zvrf; |
1430 | ||
a36898e7 | 1431 | zvrf = vrf_info_lookup(ifp->vrf_id); |
d62a17ae | 1432 | |
d62a17ae | 1433 | interval = strtoul(argv[idx_number]->arg, NULL, 10); |
1434 | if ((zif->rtadv.AdvDefaultLifetime != -1 | |
1435 | && interval > (unsigned)zif->rtadv.AdvDefaultLifetime)) { | |
1436 | vty_out(vty, | |
1437 | "This ra-interval would conflict with configured ra-lifetime!\n"); | |
1438 | return CMD_WARNING_CONFIG_FAILED; | |
1439 | } | |
1440 | ||
1441 | if (zif->rtadv.MaxRtrAdvInterval % 1000) | |
df9c8c57 | 1442 | zvrf->rtadv.adv_msec_if_count--; |
d62a17ae | 1443 | |
1444 | /* convert to milliseconds */ | |
1445 | interval = interval * 1000; | |
1446 | ||
3ea48364 | 1447 | SET_FLAG(zif->rtadv.ra_configured, VTY_RA_INTERVAL_CONFIGURED); |
d62a17ae | 1448 | zif->rtadv.MaxRtrAdvInterval = interval; |
1449 | zif->rtadv.MinRtrAdvInterval = 0.33 * interval; | |
1450 | zif->rtadv.AdvIntervalTimer = 0; | |
1451 | ||
1452 | return CMD_SUCCESS; | |
718e3744 | 1453 | } |
1454 | ||
1455 | DEFUN (no_ipv6_nd_ra_interval, | |
1456 | no_ipv6_nd_ra_interval_cmd, | |
34ccea1e | 1457 | "no ipv6 nd ra-interval [<(1-1800)|msec (1-1800000)>]", |
718e3744 | 1458 | NO_STR |
3e31cded | 1459 | "Interface IPv6 config commands\n" |
718e3744 | 1460 | "Neighbor discovery\n" |
34ccea1e QY |
1461 | "Router Advertisement interval\n" |
1462 | "Router Advertisement interval in seconds\n" | |
1463 | "Specify millisecond router advertisement interval\n" | |
1464 | "Router Advertisement interval in milliseconds\n") | |
718e3744 | 1465 | { |
d62a17ae | 1466 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1467 | struct zebra_if *zif = ifp->info; | |
df9c8c57 PG |
1468 | struct zebra_vrf *zvrf = NULL; |
1469 | ||
a36898e7 | 1470 | zvrf = vrf_info_lookup(ifp->vrf_id); |
d62a17ae | 1471 | |
1472 | if (zif->rtadv.MaxRtrAdvInterval % 1000) | |
df9c8c57 | 1473 | zvrf->rtadv.adv_msec_if_count--; |
d62a17ae | 1474 | |
3ea48364 DS |
1475 | UNSET_FLAG(zif->rtadv.ra_configured, VTY_RA_INTERVAL_CONFIGURED); |
1476 | ||
1477 | if (CHECK_FLAG(zif->rtadv.ra_configured, BGP_RA_CONFIGURED)) | |
1478 | zif->rtadv.MaxRtrAdvInterval = 10000; | |
1479 | else | |
1480 | zif->rtadv.MaxRtrAdvInterval = RTADV_MAX_RTR_ADV_INTERVAL; | |
1481 | ||
d62a17ae | 1482 | zif->rtadv.AdvIntervalTimer = zif->rtadv.MaxRtrAdvInterval; |
3ea48364 | 1483 | zif->rtadv.MinRtrAdvInterval = RTADV_MIN_RTR_ADV_INTERVAL; |
d62a17ae | 1484 | |
1485 | return CMD_SUCCESS; | |
718e3744 | 1486 | } |
1487 | ||
1488 | DEFUN (ipv6_nd_ra_lifetime, | |
1489 | ipv6_nd_ra_lifetime_cmd, | |
6147e2c6 | 1490 | "ipv6 nd ra-lifetime (0-9000)", |
3e31cded | 1491 | "Interface IPv6 config commands\n" |
718e3744 | 1492 | "Neighbor discovery\n" |
1493 | "Router lifetime\n" | |
4afa50b3 | 1494 | "Router lifetime in seconds (0 stands for a non-default gw)\n") |
718e3744 | 1495 | { |
d62a17ae | 1496 | int idx_number = 3; |
1497 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1498 | struct zebra_if *zif = ifp->info; | |
1499 | int lifetime; | |
1500 | ||
1501 | lifetime = strtoul(argv[idx_number]->arg, NULL, 10); | |
1502 | ||
1503 | /* The value to be placed in the Router Lifetime field | |
1504 | * of Router Advertisements sent from the interface, | |
1505 | * in seconds. MUST be either zero or between | |
1506 | * MaxRtrAdvInterval and 9000 seconds. -- RFC4861, 6.2.1 */ | |
1507 | if ((lifetime != 0 && lifetime * 1000 < zif->rtadv.MaxRtrAdvInterval)) { | |
1508 | vty_out(vty, | |
1509 | "This ra-lifetime would conflict with configured ra-interval\n"); | |
1510 | return CMD_WARNING_CONFIG_FAILED; | |
1511 | } | |
1512 | ||
1513 | zif->rtadv.AdvDefaultLifetime = lifetime; | |
1514 | ||
1515 | return CMD_SUCCESS; | |
718e3744 | 1516 | } |
1517 | ||
1518 | DEFUN (no_ipv6_nd_ra_lifetime, | |
1519 | no_ipv6_nd_ra_lifetime_cmd, | |
34ccea1e | 1520 | "no ipv6 nd ra-lifetime [(0-9000)]", |
718e3744 | 1521 | NO_STR |
3e31cded | 1522 | "Interface IPv6 config commands\n" |
718e3744 | 1523 | "Neighbor discovery\n" |
34ccea1e QY |
1524 | "Router lifetime\n" |
1525 | "Router lifetime in seconds (0 stands for a non-default gw)\n") | |
718e3744 | 1526 | { |
d62a17ae | 1527 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1528 | struct zebra_if *zif = ifp->info; | |
718e3744 | 1529 | |
d62a17ae | 1530 | zif->rtadv.AdvDefaultLifetime = -1; |
718e3744 | 1531 | |
d62a17ae | 1532 | return CMD_SUCCESS; |
718e3744 | 1533 | } |
1534 | ||
1535 | DEFUN (ipv6_nd_reachable_time, | |
1536 | ipv6_nd_reachable_time_cmd, | |
6147e2c6 | 1537 | "ipv6 nd reachable-time (1-3600000)", |
3e31cded | 1538 | "Interface IPv6 config commands\n" |
718e3744 | 1539 | "Neighbor discovery\n" |
1540 | "Reachable time\n" | |
1541 | "Reachable time in milliseconds\n") | |
1542 | { | |
d62a17ae | 1543 | int idx_number = 3; |
1544 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1545 | struct zebra_if *zif = ifp->info; | |
1546 | zif->rtadv.AdvReachableTime = strtoul(argv[idx_number]->arg, NULL, 10); | |
1547 | return CMD_SUCCESS; | |
718e3744 | 1548 | } |
1549 | ||
1550 | DEFUN (no_ipv6_nd_reachable_time, | |
1551 | no_ipv6_nd_reachable_time_cmd, | |
34ccea1e | 1552 | "no ipv6 nd reachable-time [(1-3600000)]", |
718e3744 | 1553 | NO_STR |
3e31cded | 1554 | "Interface IPv6 config commands\n" |
718e3744 | 1555 | "Neighbor discovery\n" |
34ccea1e QY |
1556 | "Reachable time\n" |
1557 | "Reachable time in milliseconds\n") | |
718e3744 | 1558 | { |
d62a17ae | 1559 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1560 | struct zebra_if *zif = ifp->info; | |
718e3744 | 1561 | |
d62a17ae | 1562 | zif->rtadv.AdvReachableTime = 0; |
718e3744 | 1563 | |
d62a17ae | 1564 | return CMD_SUCCESS; |
718e3744 | 1565 | } |
1566 | ||
7cee1bb1 | 1567 | DEFUN (ipv6_nd_homeagent_preference, |
1568 | ipv6_nd_homeagent_preference_cmd, | |
6147e2c6 | 1569 | "ipv6 nd home-agent-preference (0-65535)", |
7cee1bb1 | 1570 | "Interface IPv6 config commands\n" |
1571 | "Neighbor discovery\n" | |
1572 | "Home Agent preference\n" | |
4afa50b3 | 1573 | "preference value (default is 0, least preferred)\n") |
7cee1bb1 | 1574 | { |
d62a17ae | 1575 | int idx_number = 3; |
1576 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1577 | struct zebra_if *zif = ifp->info; | |
1578 | zif->rtadv.HomeAgentPreference = | |
1579 | strtoul(argv[idx_number]->arg, NULL, 10); | |
1580 | return CMD_SUCCESS; | |
7cee1bb1 | 1581 | } |
1582 | ||
1583 | DEFUN (no_ipv6_nd_homeagent_preference, | |
1584 | no_ipv6_nd_homeagent_preference_cmd, | |
34ccea1e | 1585 | "no ipv6 nd home-agent-preference [(0-65535)]", |
7cee1bb1 | 1586 | NO_STR |
1587 | "Interface IPv6 config commands\n" | |
1588 | "Neighbor discovery\n" | |
34ccea1e QY |
1589 | "Home Agent preference\n" |
1590 | "preference value (default is 0, least preferred)\n") | |
7cee1bb1 | 1591 | { |
d62a17ae | 1592 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1593 | struct zebra_if *zif = ifp->info; | |
7cee1bb1 | 1594 | |
d62a17ae | 1595 | zif->rtadv.HomeAgentPreference = 0; |
7cee1bb1 | 1596 | |
d62a17ae | 1597 | return CMD_SUCCESS; |
7cee1bb1 | 1598 | } |
1599 | ||
1600 | DEFUN (ipv6_nd_homeagent_lifetime, | |
1601 | ipv6_nd_homeagent_lifetime_cmd, | |
6147e2c6 | 1602 | "ipv6 nd home-agent-lifetime (0-65520)", |
7cee1bb1 | 1603 | "Interface IPv6 config commands\n" |
1604 | "Neighbor discovery\n" | |
1605 | "Home Agent lifetime\n" | |
4afa50b3 | 1606 | "Home Agent lifetime in seconds (0 to track ra-lifetime)\n") |
7cee1bb1 | 1607 | { |
d62a17ae | 1608 | int idx_number = 3; |
1609 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1610 | struct zebra_if *zif = ifp->info; | |
1611 | zif->rtadv.HomeAgentLifetime = strtoul(argv[idx_number]->arg, NULL, 10); | |
1612 | return CMD_SUCCESS; | |
7cee1bb1 | 1613 | } |
1614 | ||
1615 | DEFUN (no_ipv6_nd_homeagent_lifetime, | |
1616 | no_ipv6_nd_homeagent_lifetime_cmd, | |
34ccea1e | 1617 | "no ipv6 nd home-agent-lifetime [(0-65520)]", |
7cee1bb1 | 1618 | NO_STR |
1619 | "Interface IPv6 config commands\n" | |
1620 | "Neighbor discovery\n" | |
34ccea1e QY |
1621 | "Home Agent lifetime\n" |
1622 | "Home Agent lifetime in seconds (0 to track ra-lifetime)\n") | |
7cee1bb1 | 1623 | { |
d62a17ae | 1624 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1625 | struct zebra_if *zif = ifp->info; | |
7cee1bb1 | 1626 | |
d62a17ae | 1627 | zif->rtadv.HomeAgentLifetime = -1; |
7cee1bb1 | 1628 | |
d62a17ae | 1629 | return CMD_SUCCESS; |
7cee1bb1 | 1630 | } |
1631 | ||
718e3744 | 1632 | DEFUN (ipv6_nd_managed_config_flag, |
1633 | ipv6_nd_managed_config_flag_cmd, | |
1634 | "ipv6 nd managed-config-flag", | |
3e31cded | 1635 | "Interface IPv6 config commands\n" |
718e3744 | 1636 | "Neighbor discovery\n" |
1637 | "Managed address configuration flag\n") | |
1638 | { | |
d62a17ae | 1639 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1640 | struct zebra_if *zif = ifp->info; | |
718e3744 | 1641 | |
d62a17ae | 1642 | zif->rtadv.AdvManagedFlag = 1; |
718e3744 | 1643 | |
d62a17ae | 1644 | return CMD_SUCCESS; |
718e3744 | 1645 | } |
1646 | ||
1647 | DEFUN (no_ipv6_nd_managed_config_flag, | |
1648 | no_ipv6_nd_managed_config_flag_cmd, | |
1649 | "no ipv6 nd managed-config-flag", | |
1650 | NO_STR | |
3e31cded | 1651 | "Interface IPv6 config commands\n" |
718e3744 | 1652 | "Neighbor discovery\n" |
1653 | "Managed address configuration flag\n") | |
1654 | { | |
d62a17ae | 1655 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1656 | struct zebra_if *zif = ifp->info; | |
718e3744 | 1657 | |
d62a17ae | 1658 | zif->rtadv.AdvManagedFlag = 0; |
718e3744 | 1659 | |
d62a17ae | 1660 | return CMD_SUCCESS; |
718e3744 | 1661 | } |
1662 | ||
7cee1bb1 | 1663 | DEFUN (ipv6_nd_homeagent_config_flag, |
1664 | ipv6_nd_homeagent_config_flag_cmd, | |
1665 | "ipv6 nd home-agent-config-flag", | |
1666 | "Interface IPv6 config commands\n" | |
1667 | "Neighbor discovery\n" | |
1668 | "Home Agent configuration flag\n") | |
1669 | { | |
d62a17ae | 1670 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1671 | struct zebra_if *zif = ifp->info; | |
7cee1bb1 | 1672 | |
d62a17ae | 1673 | zif->rtadv.AdvHomeAgentFlag = 1; |
7cee1bb1 | 1674 | |
d62a17ae | 1675 | return CMD_SUCCESS; |
7cee1bb1 | 1676 | } |
1677 | ||
1678 | DEFUN (no_ipv6_nd_homeagent_config_flag, | |
1679 | no_ipv6_nd_homeagent_config_flag_cmd, | |
1680 | "no ipv6 nd home-agent-config-flag", | |
1681 | NO_STR | |
1682 | "Interface IPv6 config commands\n" | |
1683 | "Neighbor discovery\n" | |
1684 | "Home Agent configuration flag\n") | |
1685 | { | |
d62a17ae | 1686 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1687 | struct zebra_if *zif = ifp->info; | |
7cee1bb1 | 1688 | |
d62a17ae | 1689 | zif->rtadv.AdvHomeAgentFlag = 0; |
7cee1bb1 | 1690 | |
d62a17ae | 1691 | return CMD_SUCCESS; |
7cee1bb1 | 1692 | } |
1693 | ||
1694 | DEFUN (ipv6_nd_adv_interval_config_option, | |
1695 | ipv6_nd_adv_interval_config_option_cmd, | |
1696 | "ipv6 nd adv-interval-option", | |
1697 | "Interface IPv6 config commands\n" | |
1698 | "Neighbor discovery\n" | |
1699 | "Advertisement Interval Option\n") | |
1700 | { | |
d62a17ae | 1701 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1702 | struct zebra_if *zif = ifp->info; | |
7cee1bb1 | 1703 | |
d62a17ae | 1704 | zif->rtadv.AdvIntervalOption = 1; |
7cee1bb1 | 1705 | |
d62a17ae | 1706 | return CMD_SUCCESS; |
7cee1bb1 | 1707 | } |
1708 | ||
1709 | DEFUN (no_ipv6_nd_adv_interval_config_option, | |
1710 | no_ipv6_nd_adv_interval_config_option_cmd, | |
1711 | "no ipv6 nd adv-interval-option", | |
1712 | NO_STR | |
1713 | "Interface IPv6 config commands\n" | |
1714 | "Neighbor discovery\n" | |
1715 | "Advertisement Interval Option\n") | |
1716 | { | |
d62a17ae | 1717 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1718 | struct zebra_if *zif = ifp->info; | |
7cee1bb1 | 1719 | |
d62a17ae | 1720 | zif->rtadv.AdvIntervalOption = 0; |
7cee1bb1 | 1721 | |
d62a17ae | 1722 | return CMD_SUCCESS; |
7cee1bb1 | 1723 | } |
1724 | ||
718e3744 | 1725 | DEFUN (ipv6_nd_other_config_flag, |
1726 | ipv6_nd_other_config_flag_cmd, | |
1727 | "ipv6 nd other-config-flag", | |
3e31cded | 1728 | "Interface IPv6 config commands\n" |
718e3744 | 1729 | "Neighbor discovery\n" |
1730 | "Other statefull configuration flag\n") | |
1731 | { | |
d62a17ae | 1732 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1733 | struct zebra_if *zif = ifp->info; | |
718e3744 | 1734 | |
d62a17ae | 1735 | zif->rtadv.AdvOtherConfigFlag = 1; |
718e3744 | 1736 | |
d62a17ae | 1737 | return CMD_SUCCESS; |
718e3744 | 1738 | } |
1739 | ||
1740 | DEFUN (no_ipv6_nd_other_config_flag, | |
1741 | no_ipv6_nd_other_config_flag_cmd, | |
1742 | "no ipv6 nd other-config-flag", | |
1743 | NO_STR | |
3e31cded | 1744 | "Interface IPv6 config commands\n" |
718e3744 | 1745 | "Neighbor discovery\n" |
1746 | "Other statefull configuration flag\n") | |
1747 | { | |
d62a17ae | 1748 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1749 | struct zebra_if *zif = ifp->info; | |
718e3744 | 1750 | |
d62a17ae | 1751 | zif->rtadv.AdvOtherConfigFlag = 0; |
718e3744 | 1752 | |
d62a17ae | 1753 | return CMD_SUCCESS; |
718e3744 | 1754 | } |
1755 | ||
3e31cded | 1756 | DEFUN (ipv6_nd_prefix, |
1757 | ipv6_nd_prefix_cmd, | |
34ccea1e | 1758 | "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 | 1759 | "Interface IPv6 config commands\n" |
718e3744 | 1760 | "Neighbor discovery\n" |
1761 | "Prefix information\n" | |
1762 | "IPv6 prefix\n" | |
1763 | "Valid lifetime in seconds\n" | |
3e31cded | 1764 | "Infinite valid lifetime\n" |
718e3744 | 1765 | "Preferred lifetime in seconds\n" |
3e31cded | 1766 | "Infinite preferred lifetime\n" |
34ccea1e | 1767 | "Set Router Address flag\n" |
3e31cded | 1768 | "Do not use prefix for onlink determination\n" |
7cee1bb1 | 1769 | "Do not use prefix for autoconfiguration\n" |
34ccea1e QY |
1770 | "Do not use prefix for autoconfiguration\n" |
1771 | "Do not use prefix for onlink determination\n") | |
718e3744 | 1772 | { |
d62a17ae | 1773 | /* prelude */ |
1774 | char *prefix = argv[3]->arg; | |
9d303b37 DL |
1775 | int lifetimes = (argc > 4) && (argv[4]->type == RANGE_TKN |
1776 | || strmatch(argv[4]->text, "infinite")); | |
d62a17ae | 1777 | int routeropts = lifetimes ? argc > 6 : argc > 4; |
1778 | ||
1779 | int idx_routeropts = routeropts ? (lifetimes ? 6 : 4) : 0; | |
1780 | ||
1781 | char *lifetime = NULL, *preflifetime = NULL; | |
1782 | int routeraddr = 0, offlink = 0, noautoconf = 0; | |
1783 | if (lifetimes) { | |
1784 | lifetime = argv[4]->type == RANGE_TKN ? argv[4]->arg | |
1785 | : argv[4]->text; | |
1786 | preflifetime = argv[5]->type == RANGE_TKN ? argv[5]->arg | |
1787 | : argv[5]->text; | |
1788 | } | |
1789 | if (routeropts) { | |
1790 | routeraddr = | |
1791 | strmatch(argv[idx_routeropts]->text, "router-address"); | |
1792 | if (!routeraddr) { | |
1793 | offlink = (argc > idx_routeropts + 1 | |
1794 | || strmatch(argv[idx_routeropts]->text, | |
1795 | "off-link")); | |
1796 | noautoconf = (argc > idx_routeropts + 1 | |
1797 | || strmatch(argv[idx_routeropts]->text, | |
1798 | "no-autoconfig")); | |
1799 | } | |
1800 | } | |
1801 | ||
1802 | /* business */ | |
1803 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1804 | struct zebra_if *zebra_if = ifp->info; | |
1805 | int ret; | |
1806 | struct rtadv_prefix rp; | |
1807 | ||
1808 | ret = str2prefix_ipv6(prefix, &rp.prefix); | |
1809 | if (!ret) { | |
1810 | vty_out(vty, "Malformed IPv6 prefix\n"); | |
1811 | return CMD_WARNING_CONFIG_FAILED; | |
1812 | } | |
1813 | apply_mask_ipv6(&rp.prefix); /* RFC4861 4.6.2 */ | |
1814 | rp.AdvOnLinkFlag = !offlink; | |
1815 | rp.AdvAutonomousFlag = !noautoconf; | |
1816 | rp.AdvRouterAddressFlag = routeraddr; | |
1817 | rp.AdvValidLifetime = RTADV_VALID_LIFETIME; | |
1818 | rp.AdvPreferredLifetime = RTADV_PREFERRED_LIFETIME; | |
2a855763 | 1819 | rp.AdvPrefixCreate = PREFIX_SRC_MANUAL; |
d62a17ae | 1820 | |
1821 | if (lifetimes) { | |
1822 | rp.AdvValidLifetime = strmatch(lifetime, "infinite") | |
1823 | ? UINT32_MAX | |
1824 | : strtoll(lifetime, NULL, 10); | |
1825 | rp.AdvPreferredLifetime = | |
1826 | strmatch(preflifetime, "infinite") | |
1827 | ? UINT32_MAX | |
1828 | : strtoll(preflifetime, NULL, 10); | |
1829 | if (rp.AdvPreferredLifetime > rp.AdvValidLifetime) { | |
1830 | vty_out(vty, "Invalid preferred lifetime\n"); | |
1831 | return CMD_WARNING_CONFIG_FAILED; | |
1832 | } | |
1833 | } | |
1834 | ||
1835 | rtadv_prefix_set(zebra_if, &rp); | |
1836 | ||
1837 | return CMD_SUCCESS; | |
718e3744 | 1838 | } |
1839 | ||
3e31cded | 1840 | DEFUN (no_ipv6_nd_prefix, |
1841 | no_ipv6_nd_prefix_cmd, | |
34ccea1e QY |
1842 | "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]>]", |
1843 | NO_STR | |
3e31cded | 1844 | "Interface IPv6 config commands\n" |
718e3744 | 1845 | "Neighbor discovery\n" |
1846 | "Prefix information\n" | |
34ccea1e QY |
1847 | "IPv6 prefix\n" |
1848 | "Valid lifetime in seconds\n" | |
1849 | "Infinite valid lifetime\n" | |
1850 | "Preferred lifetime in seconds\n" | |
1851 | "Infinite preferred lifetime\n" | |
1852 | "Set Router Address flag\n" | |
1853 | "Do not use prefix for onlink determination\n" | |
1854 | "Do not use prefix for autoconfiguration\n" | |
1855 | "Do not use prefix for autoconfiguration\n" | |
1856 | "Do not use prefix for onlink determination\n") | |
718e3744 | 1857 | { |
d62a17ae | 1858 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1859 | struct zebra_if *zebra_if = ifp->info; | |
1860 | int ret; | |
1861 | struct rtadv_prefix rp; | |
1862 | char *prefix = argv[4]->arg; | |
1863 | ||
1864 | ret = str2prefix_ipv6(prefix, &rp.prefix); | |
1865 | if (!ret) { | |
1866 | vty_out(vty, "Malformed IPv6 prefix\n"); | |
1867 | return CMD_WARNING_CONFIG_FAILED; | |
1868 | } | |
1869 | apply_mask_ipv6(&rp.prefix); /* RFC4861 4.6.2 */ | |
2a855763 | 1870 | rp.AdvPrefixCreate = PREFIX_SRC_MANUAL; |
d62a17ae | 1871 | |
1872 | ret = rtadv_prefix_reset(zebra_if, &rp); | |
1873 | if (!ret) { | |
1874 | vty_out(vty, "Non-existant IPv6 prefix\n"); | |
1875 | return CMD_WARNING_CONFIG_FAILED; | |
1876 | } | |
1877 | ||
1878 | return CMD_SUCCESS; | |
718e3744 | 1879 | } |
b60668d0 CC |
1880 | |
1881 | DEFUN (ipv6_nd_router_preference, | |
1882 | ipv6_nd_router_preference_cmd, | |
6147e2c6 | 1883 | "ipv6 nd router-preference <high|medium|low>", |
b60668d0 CC |
1884 | "Interface IPv6 config commands\n" |
1885 | "Neighbor discovery\n" | |
1886 | "Default router preference\n" | |
1887 | "High default router preference\n" | |
58f1b7cc DS |
1888 | "Medium default router preference (default)\n" |
1889 | "Low default router preference\n") | |
b60668d0 | 1890 | { |
d62a17ae | 1891 | int idx_high_medium_low = 3; |
1892 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1893 | struct zebra_if *zif = ifp->info; | |
1894 | int i = 0; | |
1895 | ||
1896 | while (0 != rtadv_pref_strs[i]) { | |
1897 | if (strncmp(argv[idx_high_medium_low]->arg, rtadv_pref_strs[i], | |
1898 | 1) | |
1899 | == 0) { | |
1900 | zif->rtadv.DefaultPreference = i; | |
1901 | return CMD_SUCCESS; | |
1902 | } | |
1903 | i++; | |
b60668d0 | 1904 | } |
b60668d0 | 1905 | |
d62a17ae | 1906 | return CMD_ERR_NO_MATCH; |
b60668d0 CC |
1907 | } |
1908 | ||
1909 | DEFUN (no_ipv6_nd_router_preference, | |
1910 | no_ipv6_nd_router_preference_cmd, | |
34ccea1e | 1911 | "no ipv6 nd router-preference [<high|medium|low>]", |
b60668d0 CC |
1912 | NO_STR |
1913 | "Interface IPv6 config commands\n" | |
1914 | "Neighbor discovery\n" | |
34ccea1e QY |
1915 | "Default router preference\n" |
1916 | "High default router preference\n" | |
1917 | "Medium default router preference (default)\n" | |
1918 | "Low default router preference\n") | |
b60668d0 | 1919 | { |
d62a17ae | 1920 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1921 | struct zebra_if *zif = ifp->info; | |
b60668d0 | 1922 | |
d62a17ae | 1923 | zif->rtadv.DefaultPreference = |
1924 | RTADV_PREF_MEDIUM; /* Default per RFC4191. */ | |
b60668d0 | 1925 | |
d62a17ae | 1926 | return CMD_SUCCESS; |
b60668d0 CC |
1927 | } |
1928 | ||
6ae93c05 DO |
1929 | DEFUN (ipv6_nd_mtu, |
1930 | ipv6_nd_mtu_cmd, | |
6147e2c6 | 1931 | "ipv6 nd mtu (1-65535)", |
6ae93c05 DO |
1932 | "Interface IPv6 config commands\n" |
1933 | "Neighbor discovery\n" | |
1934 | "Advertised MTU\n" | |
1935 | "MTU in bytes\n") | |
1936 | { | |
d62a17ae | 1937 | int idx_number = 3; |
1938 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1939 | struct zebra_if *zif = ifp->info; | |
1940 | zif->rtadv.AdvLinkMTU = strtoul(argv[idx_number]->arg, NULL, 10); | |
1941 | return CMD_SUCCESS; | |
6ae93c05 DO |
1942 | } |
1943 | ||
1944 | DEFUN (no_ipv6_nd_mtu, | |
1945 | no_ipv6_nd_mtu_cmd, | |
34ccea1e | 1946 | "no ipv6 nd mtu [(1-65535)]", |
6ae93c05 DO |
1947 | NO_STR |
1948 | "Interface IPv6 config commands\n" | |
1949 | "Neighbor discovery\n" | |
34ccea1e QY |
1950 | "Advertised MTU\n" |
1951 | "MTU in bytes\n") | |
6ae93c05 | 1952 | { |
d62a17ae | 1953 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1954 | struct zebra_if *zif = ifp->info; | |
1955 | zif->rtadv.AdvLinkMTU = 0; | |
1956 | return CMD_SUCCESS; | |
6ae93c05 DO |
1957 | } |
1958 | ||
3eb4fbb0 LS |
1959 | static struct rtadv_rdnss *rtadv_rdnss_new(void) |
1960 | { | |
1961 | return XCALLOC(MTYPE_RTADV_RDNSS, sizeof(struct rtadv_rdnss)); | |
1962 | } | |
1963 | ||
1964 | static void rtadv_rdnss_free(struct rtadv_rdnss *rdnss) | |
1965 | { | |
1966 | XFREE(MTYPE_RTADV_RDNSS, rdnss); | |
1967 | } | |
1968 | ||
1969 | static struct rtadv_rdnss *rtadv_rdnss_lookup(struct list *list, | |
1970 | struct rtadv_rdnss *rdnss) | |
1971 | { | |
1972 | struct listnode *node; | |
1973 | struct rtadv_rdnss *p; | |
1974 | ||
1975 | for (ALL_LIST_ELEMENTS_RO(list, node, p)) | |
1976 | if (IPV6_ADDR_SAME(&p->addr, &rdnss->addr)) | |
1977 | return p; | |
1978 | return NULL; | |
1979 | } | |
1980 | ||
1981 | static struct rtadv_rdnss *rtadv_rdnss_get(struct list *list, | |
1982 | struct rtadv_rdnss *rdnss) | |
1983 | { | |
1984 | struct rtadv_rdnss *p; | |
1985 | ||
1986 | p = rtadv_rdnss_lookup(list, rdnss); | |
1987 | if (p) | |
1988 | return p; | |
1989 | ||
1990 | p = rtadv_rdnss_new(); | |
1991 | memcpy(p, rdnss, sizeof(struct rtadv_rdnss)); | |
1992 | listnode_add(list, p); | |
1993 | ||
1994 | return p; | |
1995 | } | |
1996 | ||
1997 | static void rtadv_rdnss_set(struct zebra_if *zif, struct rtadv_rdnss *rdnss) | |
1998 | { | |
1999 | struct rtadv_rdnss *p; | |
2000 | ||
2001 | p = rtadv_rdnss_get(zif->rtadv.AdvRDNSSList, rdnss); | |
2002 | p->lifetime = rdnss->lifetime; | |
2003 | p->lifetime_set = rdnss->lifetime_set; | |
2004 | } | |
2005 | ||
2006 | static int rtadv_rdnss_reset(struct zebra_if *zif, struct rtadv_rdnss *rdnss) | |
2007 | { | |
2008 | struct rtadv_rdnss *p; | |
2009 | ||
2010 | p = rtadv_rdnss_lookup(zif->rtadv.AdvRDNSSList, rdnss); | |
2011 | if (p) { | |
2012 | listnode_delete(zif->rtadv.AdvRDNSSList, p); | |
2013 | rtadv_rdnss_free(p); | |
2014 | return 1; | |
2015 | } | |
2016 | ||
2017 | return 0; | |
2018 | } | |
2019 | ||
2020 | static struct rtadv_dnssl *rtadv_dnssl_new(void) | |
2021 | { | |
2022 | return XCALLOC(MTYPE_RTADV_DNSSL, sizeof(struct rtadv_dnssl)); | |
2023 | } | |
2024 | ||
2025 | static void rtadv_dnssl_free(struct rtadv_dnssl *dnssl) | |
2026 | { | |
2027 | XFREE(MTYPE_RTADV_DNSSL, dnssl); | |
2028 | } | |
2029 | ||
2030 | static struct rtadv_dnssl *rtadv_dnssl_lookup(struct list *list, | |
2031 | struct rtadv_dnssl *dnssl) | |
2032 | { | |
2033 | struct listnode *node; | |
2034 | struct rtadv_dnssl *p; | |
2035 | ||
2036 | for (ALL_LIST_ELEMENTS_RO(list, node, p)) | |
2037 | if (!strcasecmp(p->name, dnssl->name)) | |
2038 | return p; | |
2039 | return NULL; | |
2040 | } | |
2041 | ||
2042 | static struct rtadv_dnssl *rtadv_dnssl_get(struct list *list, | |
2043 | struct rtadv_dnssl *dnssl) | |
2044 | { | |
2045 | struct rtadv_dnssl *p; | |
2046 | ||
2047 | p = rtadv_dnssl_lookup(list, dnssl); | |
2048 | if (p) | |
2049 | return p; | |
2050 | ||
2051 | p = rtadv_dnssl_new(); | |
2052 | memcpy(p, dnssl, sizeof(struct rtadv_dnssl)); | |
2053 | listnode_add(list, p); | |
2054 | ||
2055 | return p; | |
2056 | } | |
2057 | ||
2058 | static void rtadv_dnssl_set(struct zebra_if *zif, struct rtadv_dnssl *dnssl) | |
2059 | { | |
2060 | struct rtadv_dnssl *p; | |
2061 | ||
2062 | p = rtadv_dnssl_get(zif->rtadv.AdvDNSSLList, dnssl); | |
2063 | memcpy(p, dnssl, sizeof(struct rtadv_dnssl)); | |
2064 | } | |
2065 | ||
2066 | static int rtadv_dnssl_reset(struct zebra_if *zif, struct rtadv_dnssl *dnssl) | |
2067 | { | |
2068 | struct rtadv_dnssl *p; | |
2069 | ||
2070 | p = rtadv_dnssl_lookup(zif->rtadv.AdvDNSSLList, dnssl); | |
2071 | if (p) { | |
2072 | listnode_delete(zif->rtadv.AdvDNSSLList, p); | |
2073 | rtadv_dnssl_free(p); | |
2074 | return 1; | |
2075 | } | |
2076 | ||
2077 | return 0; | |
2078 | } | |
2079 | ||
2080 | /* | |
2081 | * Convert dotted domain name (with or without trailing root zone dot) to | |
2082 | * sequence of length-prefixed labels, as described in [RFC1035 3.1]. Write up | |
2083 | * to strlen(in) + 2 octets to out. | |
2084 | * | |
2085 | * Returns the number of octets written to out or -1 if in does not constitute | |
2086 | * a valid domain name. | |
2087 | */ | |
2088 | static int rtadv_dnssl_encode(uint8_t *out, const char *in) | |
2089 | { | |
2090 | const char *label_start, *label_end; | |
2091 | size_t outp; | |
2092 | ||
2093 | outp = 0; | |
2094 | label_start = in; | |
2095 | ||
2096 | while (*label_start) { | |
2097 | size_t label_len; | |
2098 | ||
2099 | label_end = strchr(label_start, '.'); | |
2100 | if (label_end == NULL) | |
2101 | label_end = label_start + strlen(label_start); | |
2102 | ||
2103 | label_len = label_end - label_start; | |
2104 | if (label_len >= 64) | |
2105 | return -1; /* labels must be 63 octets or less */ | |
2106 | ||
2107 | out[outp++] = (uint8_t)label_len; | |
2108 | memcpy(out + outp, label_start, label_len); | |
2109 | outp += label_len; | |
2110 | label_start += label_len; | |
2111 | if (*label_start == '.') | |
2112 | label_start++; | |
2113 | } | |
2114 | ||
2115 | out[outp++] = '\0'; | |
2116 | return outp; | |
2117 | } | |
2118 | ||
2119 | DEFUN(ipv6_nd_rdnss, | |
2120 | ipv6_nd_rdnss_cmd, | |
2121 | "ipv6 nd rdnss X:X::X:X [<(0-4294967295)|infinite>]", | |
2122 | "Interface IPv6 config commands\n" | |
2123 | "Neighbor discovery\n" | |
2124 | "Recursive DNS server information\n" | |
2125 | "IPv6 address\n" | |
2126 | "Valid lifetime in seconds\n" | |
2127 | "Infinite valid lifetime\n") | |
2128 | { | |
2129 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
2130 | struct zebra_if *zif = ifp->info; | |
844e9180 | 2131 | struct rtadv_rdnss rdnss = {}; |
3eb4fbb0 LS |
2132 | |
2133 | if (inet_pton(AF_INET6, argv[3]->arg, &rdnss.addr) != 1) { | |
2134 | vty_out(vty, "Malformed IPv6 address\n"); | |
2135 | return CMD_WARNING_CONFIG_FAILED; | |
2136 | } | |
2137 | if (argc > 4) { | |
2138 | char *lifetime = argv[4]->type == RANGE_TKN ? argv[4]->arg | |
2139 | : argv[4]->text; | |
2140 | rdnss.lifetime = strmatch(lifetime, "infinite") | |
2141 | ? UINT32_MAX | |
2142 | : strtoll(lifetime, NULL, 10); | |
2143 | rdnss.lifetime_set = 1; | |
2144 | } | |
2145 | ||
2146 | rtadv_rdnss_set(zif, &rdnss); | |
2147 | ||
2148 | return CMD_SUCCESS; | |
2149 | } | |
2150 | ||
2151 | DEFUN(no_ipv6_nd_rdnss, | |
2152 | no_ipv6_nd_rdnss_cmd, | |
2153 | "no ipv6 nd rdnss X:X::X:X [<(0-4294967295)|infinite>]", | |
2154 | NO_STR | |
2155 | "Interface IPv6 config commands\n" | |
2156 | "Neighbor discovery\n" | |
2157 | "Recursive DNS server information\n" | |
2158 | "IPv6 address\n" | |
2159 | "Valid lifetime in seconds\n" | |
2160 | "Infinite valid lifetime\n") | |
2161 | { | |
2162 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
2163 | struct zebra_if *zif = ifp->info; | |
844e9180 | 2164 | struct rtadv_rdnss rdnss = {}; |
3eb4fbb0 LS |
2165 | |
2166 | if (inet_pton(AF_INET6, argv[4]->arg, &rdnss.addr) != 1) { | |
2167 | vty_out(vty, "Malformed IPv6 address\n"); | |
2168 | return CMD_WARNING_CONFIG_FAILED; | |
2169 | } | |
2170 | if (rtadv_rdnss_reset(zif, &rdnss) != 1) { | |
2171 | vty_out(vty, "Non-existant RDNSS address\n"); | |
2172 | return CMD_WARNING_CONFIG_FAILED; | |
2173 | } | |
2174 | ||
2175 | return CMD_SUCCESS; | |
2176 | } | |
2177 | ||
2178 | DEFUN(ipv6_nd_dnssl, | |
2179 | ipv6_nd_dnssl_cmd, | |
2180 | "ipv6 nd dnssl SUFFIX [<(0-4294967295)|infinite>]", | |
2181 | "Interface IPv6 config commands\n" | |
2182 | "Neighbor discovery\n" | |
2183 | "DNS search list information\n" | |
2184 | "Domain name suffix\n" | |
2185 | "Valid lifetime in seconds\n" | |
2186 | "Infinite valid lifetime\n") | |
2187 | { | |
2188 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
2189 | struct zebra_if *zif = ifp->info; | |
844e9180 | 2190 | struct rtadv_dnssl dnssl = {}; |
3eb4fbb0 LS |
2191 | size_t len; |
2192 | int ret; | |
2193 | ||
2194 | len = strlcpy(dnssl.name, argv[3]->arg, sizeof(dnssl.name)); | |
2195 | if (len == 0 || len >= sizeof(dnssl.name)) { | |
2196 | vty_out(vty, "Malformed DNS search domain\n"); | |
2197 | return CMD_WARNING_CONFIG_FAILED; | |
2198 | } | |
2199 | if (dnssl.name[len - 1] == '.') { | |
2200 | /* | |
2201 | * Allow, but don't require, a trailing dot signifying the root | |
2202 | * zone. Canonicalize by cutting it off if present. | |
2203 | */ | |
2204 | dnssl.name[len - 1] = '\0'; | |
2205 | len--; | |
2206 | } | |
2207 | if (argc > 4) { | |
2208 | char *lifetime = argv[4]->type == RANGE_TKN ? argv[4]->arg | |
2209 | : argv[4]->text; | |
2210 | dnssl.lifetime = strmatch(lifetime, "infinite") | |
2211 | ? UINT32_MAX | |
2212 | : strtoll(lifetime, NULL, 10); | |
2213 | dnssl.lifetime_set = 1; | |
2214 | } | |
2215 | ||
2216 | ret = rtadv_dnssl_encode(dnssl.encoded_name, dnssl.name); | |
2217 | if (ret < 0) { | |
2218 | vty_out(vty, "Malformed DNS search domain\n"); | |
2219 | return CMD_WARNING_CONFIG_FAILED; | |
2220 | } | |
2221 | dnssl.encoded_len = ret; | |
2222 | rtadv_dnssl_set(zif, &dnssl); | |
2223 | ||
2224 | return CMD_SUCCESS; | |
2225 | } | |
2226 | ||
2227 | DEFUN(no_ipv6_nd_dnssl, | |
2228 | no_ipv6_nd_dnssl_cmd, | |
2229 | "no ipv6 nd dnssl SUFFIX [<(0-4294967295)|infinite>]", | |
2230 | NO_STR | |
2231 | "Interface IPv6 config commands\n" | |
2232 | "Neighbor discovery\n" | |
2233 | "DNS search list information\n" | |
2234 | "Domain name suffix\n" | |
2235 | "Valid lifetime in seconds\n" | |
2236 | "Infinite valid lifetime\n") | |
2237 | { | |
2238 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
2239 | struct zebra_if *zif = ifp->info; | |
844e9180 | 2240 | struct rtadv_dnssl dnssl = {}; |
3eb4fbb0 LS |
2241 | size_t len; |
2242 | ||
2243 | len = strlcpy(dnssl.name, argv[4]->arg, sizeof(dnssl.name)); | |
2244 | if (len == 0 || len >= sizeof(dnssl.name)) { | |
2245 | vty_out(vty, "Malformed DNS search domain\n"); | |
2246 | return CMD_WARNING_CONFIG_FAILED; | |
2247 | } | |
2248 | if (dnssl.name[len - 1] == '.') { | |
2249 | dnssl.name[len - 1] = '\0'; | |
2250 | len--; | |
2251 | } | |
2252 | if (rtadv_dnssl_reset(zif, &dnssl) != 1) { | |
2253 | vty_out(vty, "Non-existant DNS search domain\n"); | |
2254 | return CMD_WARNING_CONFIG_FAILED; | |
2255 | } | |
2256 | ||
2257 | return CMD_SUCCESS; | |
2258 | } | |
2259 | ||
2260 | ||
2eb27eec DL |
2261 | /* Dump interface ND information to vty. */ |
2262 | static int nd_dump_vty(struct vty *vty, struct interface *ifp) | |
2263 | { | |
2264 | struct zebra_if *zif; | |
2265 | struct rtadvconf *rtadv; | |
2266 | int interval; | |
2267 | ||
2268 | zif = (struct zebra_if *)ifp->info; | |
2269 | rtadv = &zif->rtadv; | |
2270 | ||
2271 | if (rtadv->AdvSendAdvertisements) { | |
2272 | vty_out(vty, | |
2273 | " ND advertised reachable time is %d milliseconds\n", | |
2274 | rtadv->AdvReachableTime); | |
2275 | vty_out(vty, | |
b19ac878 | 2276 | " ND advertised retransmit interval is %u milliseconds\n", |
2eb27eec | 2277 | rtadv->AdvRetransTimer); |
fae01935 DS |
2278 | vty_out(vty, " ND advertised hop-count limit is %d hops\n", |
2279 | rtadv->AdvCurHopLimit); | |
2eb27eec DL |
2280 | vty_out(vty, " ND router advertisements sent: %d rcvd: %d\n", |
2281 | zif->ra_sent, zif->ra_rcvd); | |
2282 | interval = rtadv->MaxRtrAdvInterval; | |
2283 | if (interval % 1000) | |
2284 | vty_out(vty, | |
3efd0893 | 2285 | " ND router advertisements are sent every %d milliseconds\n", |
2eb27eec DL |
2286 | interval); |
2287 | else | |
2288 | vty_out(vty, | |
3efd0893 | 2289 | " ND router advertisements are sent every %d seconds\n", |
2eb27eec | 2290 | interval / 1000); |
adee8f21 DS |
2291 | if (!rtadv->UseFastRexmit) |
2292 | vty_out(vty, | |
2293 | " ND router advertisements do not use fast retransmit\n"); | |
2294 | ||
2eb27eec DL |
2295 | if (rtadv->AdvDefaultLifetime != -1) |
2296 | vty_out(vty, | |
2297 | " ND router advertisements live for %d seconds\n", | |
2298 | rtadv->AdvDefaultLifetime); | |
2299 | else | |
2300 | vty_out(vty, | |
2301 | " ND router advertisements lifetime tracks ra-interval\n"); | |
2302 | vty_out(vty, | |
3efd0893 | 2303 | " ND router advertisement default router preference is %s\n", |
2eb27eec DL |
2304 | rtadv_pref_strs[rtadv->DefaultPreference]); |
2305 | if (rtadv->AdvManagedFlag) | |
2306 | vty_out(vty, | |
2307 | " Hosts use DHCP to obtain routable addresses.\n"); | |
2308 | else | |
2309 | vty_out(vty, | |
2310 | " Hosts use stateless autoconfig for addresses.\n"); | |
2311 | if (rtadv->AdvHomeAgentFlag) { | |
2312 | vty_out(vty, | |
2313 | " ND router advertisements with Home Agent flag bit set.\n"); | |
2314 | if (rtadv->HomeAgentLifetime != -1) | |
2315 | vty_out(vty, | |
2316 | " Home Agent lifetime is %u seconds\n", | |
2317 | rtadv->HomeAgentLifetime); | |
2318 | else | |
2319 | vty_out(vty, | |
2320 | " Home Agent lifetime tracks ra-lifetime\n"); | |
2321 | vty_out(vty, " Home Agent preference is %u\n", | |
2322 | rtadv->HomeAgentPreference); | |
2323 | } | |
2324 | if (rtadv->AdvIntervalOption) | |
2325 | vty_out(vty, | |
2326 | " ND router advertisements with Adv. Interval option.\n"); | |
2327 | } | |
2328 | return 0; | |
2329 | } | |
2330 | ||
6ae93c05 | 2331 | |
718e3744 | 2332 | /* Write configuration about router advertisement. */ |
2eb27eec | 2333 | static int rtadv_config_write(struct vty *vty, struct interface *ifp) |
718e3744 | 2334 | { |
d62a17ae | 2335 | struct zebra_if *zif; |
2336 | struct listnode *node; | |
2337 | struct rtadv_prefix *rprefix; | |
3eb4fbb0 LS |
2338 | struct rtadv_rdnss *rdnss; |
2339 | struct rtadv_dnssl *dnssl; | |
d62a17ae | 2340 | char buf[PREFIX_STRLEN]; |
2341 | int interval; | |
2342 | ||
2343 | zif = ifp->info; | |
2344 | ||
2345 | if (!(if_is_loopback(ifp) | |
2346 | || CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK))) { | |
3ea48364 DS |
2347 | if (zif->rtadv.AdvSendAdvertisements |
2348 | && CHECK_FLAG(zif->rtadv.ra_configured, VTY_RA_CONFIGURED)) | |
d62a17ae | 2349 | vty_out(vty, " no ipv6 nd suppress-ra\n"); |
2350 | } | |
2351 | ||
2352 | interval = zif->rtadv.MaxRtrAdvInterval; | |
3ea48364 DS |
2353 | if (CHECK_FLAG(zif->rtadv.ra_configured, VTY_RA_INTERVAL_CONFIGURED)) { |
2354 | if (interval % 1000) | |
2355 | vty_out(vty, " ipv6 nd ra-interval msec %d\n", | |
2356 | interval); | |
2357 | else if (interval != RTADV_MAX_RTR_ADV_INTERVAL) | |
2358 | vty_out(vty, " ipv6 nd ra-interval %d\n", | |
2359 | interval / 1000); | |
2360 | } | |
d62a17ae | 2361 | |
2362 | if (zif->rtadv.AdvIntervalOption) | |
2363 | vty_out(vty, " ipv6 nd adv-interval-option\n"); | |
2364 | ||
adee8f21 DS |
2365 | if (!zif->rtadv.UseFastRexmit) |
2366 | vty_out(vty, " no ipv6 nd ra-fast-retrans\n"); | |
2367 | ||
b19ac878 DS |
2368 | if (zif->rtadv.AdvRetransTimer != 0) |
2369 | vty_out(vty, " ipv6 nd ra-retrans-interval %u\n", | |
2370 | zif->rtadv.AdvRetransTimer); | |
2371 | ||
fae01935 DS |
2372 | if (zif->rtadv.AdvCurHopLimit != RTADV_DEFAULT_HOPLIMIT) |
2373 | vty_out(vty, " ipv6 nd ra-hop-limit %d\n", | |
2374 | zif->rtadv.AdvCurHopLimit); | |
2375 | ||
d62a17ae | 2376 | if (zif->rtadv.AdvDefaultLifetime != -1) |
2377 | vty_out(vty, " ipv6 nd ra-lifetime %d\n", | |
2378 | zif->rtadv.AdvDefaultLifetime); | |
2379 | ||
2380 | if (zif->rtadv.HomeAgentPreference) | |
2381 | vty_out(vty, " ipv6 nd home-agent-preference %u\n", | |
2382 | zif->rtadv.HomeAgentPreference); | |
2383 | ||
2384 | if (zif->rtadv.HomeAgentLifetime != -1) | |
2385 | vty_out(vty, " ipv6 nd home-agent-lifetime %u\n", | |
2386 | zif->rtadv.HomeAgentLifetime); | |
2387 | ||
2388 | if (zif->rtadv.AdvHomeAgentFlag) | |
2389 | vty_out(vty, " ipv6 nd home-agent-config-flag\n"); | |
2390 | ||
2391 | if (zif->rtadv.AdvReachableTime) | |
2392 | vty_out(vty, " ipv6 nd reachable-time %d\n", | |
2393 | zif->rtadv.AdvReachableTime); | |
2394 | ||
2395 | if (zif->rtadv.AdvManagedFlag) | |
2396 | vty_out(vty, " ipv6 nd managed-config-flag\n"); | |
2397 | ||
2398 | if (zif->rtadv.AdvOtherConfigFlag) | |
2399 | vty_out(vty, " ipv6 nd other-config-flag\n"); | |
2400 | ||
2401 | if (zif->rtadv.DefaultPreference != RTADV_PREF_MEDIUM) | |
2402 | vty_out(vty, " ipv6 nd router-preference %s\n", | |
2403 | rtadv_pref_strs[zif->rtadv.DefaultPreference]); | |
2404 | ||
2405 | if (zif->rtadv.AdvLinkMTU) | |
2406 | vty_out(vty, " ipv6 nd mtu %d\n", zif->rtadv.AdvLinkMTU); | |
2407 | ||
2408 | for (ALL_LIST_ELEMENTS_RO(zif->rtadv.AdvPrefixList, node, rprefix)) { | |
2a855763 DS |
2409 | if ((rprefix->AdvPrefixCreate == PREFIX_SRC_MANUAL) |
2410 | || (rprefix->AdvPrefixCreate == PREFIX_SRC_BOTH)) { | |
2411 | vty_out(vty, " ipv6 nd prefix %s", | |
2412 | prefix2str(&rprefix->prefix, buf, sizeof(buf))); | |
2413 | if ((rprefix->AdvValidLifetime != RTADV_VALID_LIFETIME) | |
2414 | || (rprefix->AdvPreferredLifetime | |
2415 | != RTADV_PREFERRED_LIFETIME)) { | |
2416 | if (rprefix->AdvValidLifetime == UINT32_MAX) | |
2417 | vty_out(vty, " infinite"); | |
2418 | else | |
2419 | vty_out(vty, " %u", | |
2420 | rprefix->AdvValidLifetime); | |
2421 | if (rprefix->AdvPreferredLifetime == UINT32_MAX) | |
2422 | vty_out(vty, " infinite"); | |
2423 | else | |
2424 | vty_out(vty, " %u", | |
2425 | rprefix->AdvPreferredLifetime); | |
2426 | } | |
2427 | if (!rprefix->AdvOnLinkFlag) | |
2428 | vty_out(vty, " off-link"); | |
2429 | if (!rprefix->AdvAutonomousFlag) | |
2430 | vty_out(vty, " no-autoconfig"); | |
2431 | if (rprefix->AdvRouterAddressFlag) | |
2432 | vty_out(vty, " router-address"); | |
2433 | vty_out(vty, "\n"); | |
d62a17ae | 2434 | } |
3e31cded | 2435 | } |
2a855763 | 2436 | |
3eb4fbb0 LS |
2437 | for (ALL_LIST_ELEMENTS_RO(zif->rtadv.AdvRDNSSList, node, rdnss)) { |
2438 | char buf[INET6_ADDRSTRLEN]; | |
2439 | ||
2440 | vty_out(vty, " ipv6 nd rdnss %s", | |
2441 | inet_ntop(AF_INET6, &rdnss->addr, buf, sizeof(buf))); | |
2442 | if (rdnss->lifetime_set) { | |
2443 | if (rdnss->lifetime == UINT32_MAX) | |
2444 | vty_out(vty, " infinite"); | |
2445 | else | |
2446 | vty_out(vty, " %u", rdnss->lifetime); | |
2447 | } | |
2448 | vty_out(vty, "\n"); | |
2449 | } | |
2450 | for (ALL_LIST_ELEMENTS_RO(zif->rtadv.AdvDNSSLList, node, dnssl)) { | |
2451 | vty_out(vty, " ipv6 nd dnssl %s", dnssl->name); | |
2452 | if (dnssl->lifetime_set) { | |
2453 | if (dnssl->lifetime == UINT32_MAX) | |
2454 | vty_out(vty, " infinite"); | |
2455 | else | |
2456 | vty_out(vty, " %u", dnssl->lifetime); | |
2457 | } | |
2458 | vty_out(vty, "\n"); | |
2459 | } | |
2eb27eec | 2460 | return 0; |
718e3744 | 2461 | } |
2462 | ||
718e3744 | 2463 | |
df9c8c57 | 2464 | static void rtadv_event(struct zebra_vrf *zvrf, enum rtadv_event event, int val) |
718e3744 | 2465 | { |
df9c8c57 | 2466 | struct rtadv *rtadv = &zvrf->rtadv; |
d62a17ae | 2467 | |
60077146 DS |
2468 | if (IS_ZEBRA_DEBUG_EVENT) { |
2469 | struct vrf *vrf = zvrf->vrf; | |
2470 | ||
2471 | zlog_debug("%s(%s) with event: %d and val: %d", __func__, | |
2472 | VRF_LOGNAME(vrf), event, val); | |
2473 | } | |
2474 | ||
d62a17ae | 2475 | switch (event) { |
2476 | case RTADV_START: | |
df9c8c57 | 2477 | thread_add_read(zrouter.master, rtadv_read, zvrf, val, |
d62a17ae | 2478 | &rtadv->ra_read); |
df9c8c57 | 2479 | thread_add_event(zrouter.master, rtadv_timer, zvrf, 0, |
d62a17ae | 2480 | &rtadv->ra_timer); |
2481 | break; | |
2482 | case RTADV_STOP: | |
311c15ee DS |
2483 | THREAD_OFF(rtadv->ra_timer); |
2484 | THREAD_OFF(rtadv->ra_read); | |
d62a17ae | 2485 | break; |
2486 | case RTADV_TIMER: | |
df9c8c57 | 2487 | thread_add_timer(zrouter.master, rtadv_timer, zvrf, val, |
d62a17ae | 2488 | &rtadv->ra_timer); |
2489 | break; | |
2490 | case RTADV_TIMER_MSEC: | |
df9c8c57 | 2491 | thread_add_timer_msec(zrouter.master, rtadv_timer, zvrf, val, |
d62a17ae | 2492 | &rtadv->ra_timer); |
2493 | break; | |
2494 | case RTADV_READ: | |
df9c8c57 | 2495 | thread_add_read(zrouter.master, rtadv_read, zvrf, val, |
d62a17ae | 2496 | &rtadv->ra_read); |
2497 | break; | |
2498 | default: | |
2499 | break; | |
718e3744 | 2500 | } |
d62a17ae | 2501 | return; |
718e3744 | 2502 | } |
2503 | ||
df9c8c57 | 2504 | void rtadv_init(struct zebra_vrf *zvrf) |
718e3744 | 2505 | { |
9245fe61 PG |
2506 | if (vrf_is_backend_netns()) { |
2507 | zvrf->rtadv.sock = rtadv_make_socket(zvrf->zns->ns_id); | |
2508 | zrouter.rtadv_sock = -1; | |
311c15ee | 2509 | } else { |
9245fe61 | 2510 | zvrf->rtadv.sock = -1; |
311c15ee DS |
2511 | if (zrouter.rtadv_sock < 0) |
2512 | zrouter.rtadv_sock = | |
2513 | rtadv_make_socket(zvrf->zns->ns_id); | |
9245fe61 | 2514 | } |
cd80d74f | 2515 | } |
718e3744 | 2516 | |
aab5893a | 2517 | void rtadv_vrf_terminate(struct zebra_vrf *zvrf) |
cd80d74f | 2518 | { |
df9c8c57 PG |
2519 | rtadv_event(zvrf, RTADV_STOP, 0); |
2520 | if (zvrf->rtadv.sock >= 0) { | |
2521 | close(zvrf->rtadv.sock); | |
2522 | zvrf->rtadv.sock = -1; | |
d62a17ae | 2523 | } |
aab5893a | 2524 | |
df9c8c57 PG |
2525 | zvrf->rtadv.adv_if_count = 0; |
2526 | zvrf->rtadv.adv_msec_if_count = 0; | |
cd80d74f | 2527 | } |
718e3744 | 2528 | |
aab5893a DS |
2529 | void rtadv_terminate(void) |
2530 | { | |
2531 | if (zrouter.rtadv_sock >= 0) { | |
2532 | close(zrouter.rtadv_sock); | |
2533 | zrouter.rtadv_sock = -1; | |
2534 | } | |
2535 | } | |
2536 | ||
d62a17ae | 2537 | void rtadv_cmd_init(void) |
cd80d74f | 2538 | { |
2eb27eec DL |
2539 | hook_register(zebra_if_extra_info, nd_dump_vty); |
2540 | hook_register(zebra_if_config_wr, rtadv_config_write); | |
2541 | ||
adee8f21 DS |
2542 | install_element(INTERFACE_NODE, &ipv6_nd_ra_fast_retrans_cmd); |
2543 | install_element(INTERFACE_NODE, &no_ipv6_nd_ra_fast_retrans_cmd); | |
b19ac878 DS |
2544 | install_element(INTERFACE_NODE, &ipv6_nd_ra_retrans_interval_cmd); |
2545 | install_element(INTERFACE_NODE, &no_ipv6_nd_ra_retrans_interval_cmd); | |
fae01935 DS |
2546 | install_element(INTERFACE_NODE, &ipv6_nd_ra_hop_limit_cmd); |
2547 | install_element(INTERFACE_NODE, &no_ipv6_nd_ra_hop_limit_cmd); | |
d62a17ae | 2548 | install_element(INTERFACE_NODE, &ipv6_nd_suppress_ra_cmd); |
2549 | install_element(INTERFACE_NODE, &no_ipv6_nd_suppress_ra_cmd); | |
2550 | install_element(INTERFACE_NODE, &ipv6_nd_ra_interval_cmd); | |
2551 | install_element(INTERFACE_NODE, &ipv6_nd_ra_interval_msec_cmd); | |
2552 | install_element(INTERFACE_NODE, &no_ipv6_nd_ra_interval_cmd); | |
2553 | install_element(INTERFACE_NODE, &ipv6_nd_ra_lifetime_cmd); | |
2554 | install_element(INTERFACE_NODE, &no_ipv6_nd_ra_lifetime_cmd); | |
2555 | install_element(INTERFACE_NODE, &ipv6_nd_reachable_time_cmd); | |
2556 | install_element(INTERFACE_NODE, &no_ipv6_nd_reachable_time_cmd); | |
2557 | install_element(INTERFACE_NODE, &ipv6_nd_managed_config_flag_cmd); | |
2558 | install_element(INTERFACE_NODE, &no_ipv6_nd_managed_config_flag_cmd); | |
2559 | install_element(INTERFACE_NODE, &ipv6_nd_other_config_flag_cmd); | |
2560 | install_element(INTERFACE_NODE, &no_ipv6_nd_other_config_flag_cmd); | |
2561 | install_element(INTERFACE_NODE, &ipv6_nd_homeagent_config_flag_cmd); | |
2562 | install_element(INTERFACE_NODE, &no_ipv6_nd_homeagent_config_flag_cmd); | |
2563 | install_element(INTERFACE_NODE, &ipv6_nd_homeagent_preference_cmd); | |
2564 | install_element(INTERFACE_NODE, &no_ipv6_nd_homeagent_preference_cmd); | |
2565 | install_element(INTERFACE_NODE, &ipv6_nd_homeagent_lifetime_cmd); | |
2566 | install_element(INTERFACE_NODE, &no_ipv6_nd_homeagent_lifetime_cmd); | |
2567 | install_element(INTERFACE_NODE, | |
2568 | &ipv6_nd_adv_interval_config_option_cmd); | |
2569 | install_element(INTERFACE_NODE, | |
2570 | &no_ipv6_nd_adv_interval_config_option_cmd); | |
2571 | install_element(INTERFACE_NODE, &ipv6_nd_prefix_cmd); | |
2572 | install_element(INTERFACE_NODE, &no_ipv6_nd_prefix_cmd); | |
2573 | install_element(INTERFACE_NODE, &ipv6_nd_router_preference_cmd); | |
2574 | install_element(INTERFACE_NODE, &no_ipv6_nd_router_preference_cmd); | |
2575 | install_element(INTERFACE_NODE, &ipv6_nd_mtu_cmd); | |
2576 | install_element(INTERFACE_NODE, &no_ipv6_nd_mtu_cmd); | |
3eb4fbb0 LS |
2577 | install_element(INTERFACE_NODE, &ipv6_nd_rdnss_cmd); |
2578 | install_element(INTERFACE_NODE, &no_ipv6_nd_rdnss_cmd); | |
2579 | install_element(INTERFACE_NODE, &ipv6_nd_dnssl_cmd); | |
2580 | install_element(INTERFACE_NODE, &no_ipv6_nd_dnssl_cmd); | |
718e3744 | 2581 | } |
2582 | ||
d62a17ae | 2583 | static int if_join_all_router(int sock, struct interface *ifp) |
718e3744 | 2584 | { |
d62a17ae | 2585 | int ret; |
718e3744 | 2586 | |
d62a17ae | 2587 | struct ipv6_mreq mreq; |
718e3744 | 2588 | |
d62a17ae | 2589 | memset(&mreq, 0, sizeof(struct ipv6_mreq)); |
2590 | inet_pton(AF_INET6, ALLROUTER, &mreq.ipv6mr_multiaddr); | |
2591 | mreq.ipv6mr_interface = ifp->ifindex; | |
718e3744 | 2592 | |
d62a17ae | 2593 | ret = setsockopt(sock, IPPROTO_IPV6, IPV6_JOIN_GROUP, (char *)&mreq, |
0d6f7fd6 | 2594 | sizeof(mreq)); |
d62a17ae | 2595 | if (ret < 0) |
450971aa | 2596 | flog_err_sys(EC_LIB_SOCKET, |
9df414fe QY |
2597 | "%s(%u): Failed to join group, socket %u error %s", |
2598 | ifp->name, ifp->ifindex, sock, | |
2599 | safe_strerror(errno)); | |
718e3744 | 2600 | |
60077146 DS |
2601 | if (IS_ZEBRA_DEBUG_EVENT) { |
2602 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); | |
2603 | ||
d62a17ae | 2604 | zlog_debug( |
60077146 DS |
2605 | "%s(%s:%u): Join All-Routers multicast group, socket %u", |
2606 | ifp->name, VRF_LOGNAME(vrf), ifp->ifindex, sock); | |
2607 | } | |
718e3744 | 2608 | |
d62a17ae | 2609 | return 0; |
718e3744 | 2610 | } |
2611 | ||
d62a17ae | 2612 | static int if_leave_all_router(int sock, struct interface *ifp) |
718e3744 | 2613 | { |
d62a17ae | 2614 | int ret; |
718e3744 | 2615 | |
d62a17ae | 2616 | struct ipv6_mreq mreq; |
718e3744 | 2617 | |
d62a17ae | 2618 | memset(&mreq, 0, sizeof(struct ipv6_mreq)); |
2619 | inet_pton(AF_INET6, ALLROUTER, &mreq.ipv6mr_multiaddr); | |
2620 | mreq.ipv6mr_interface = ifp->ifindex; | |
718e3744 | 2621 | |
d62a17ae | 2622 | ret = setsockopt(sock, IPPROTO_IPV6, IPV6_LEAVE_GROUP, (char *)&mreq, |
0d6f7fd6 | 2623 | sizeof(mreq)); |
60077146 DS |
2624 | if (ret < 0) { |
2625 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); | |
2626 | ||
9df414fe | 2627 | flog_err_sys( |
450971aa | 2628 | EC_LIB_SOCKET, |
60077146 DS |
2629 | "%s(%s:%u): Failed to leave group, socket %u error %s", |
2630 | ifp->name, VRF_LOGNAME(vrf), ifp->ifindex, sock, | |
2631 | safe_strerror(errno)); | |
2632 | } | |
2633 | if (IS_ZEBRA_DEBUG_EVENT) { | |
2634 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); | |
718e3744 | 2635 | |
d62a17ae | 2636 | zlog_debug( |
60077146 DS |
2637 | "%s(%s:%u): Leave All-Routers multicast group, socket %u", |
2638 | ifp->name, VRF_LOGNAME(vrf), ifp->ifindex, sock); | |
2639 | } | |
d62a17ae | 2640 | return 0; |
718e3744 | 2641 | } |
2642 | ||
2643 | #else | |
df9c8c57 | 2644 | void rtadv_init(struct zebra_vrf *zvrf) |
cd80d74f | 2645 | { |
d62a17ae | 2646 | /* Empty.*/; |
cd80d74f | 2647 | } |
d3f604f0 | 2648 | void rtadv_terminate(void) |
cd80d74f | 2649 | { |
d62a17ae | 2650 | /* Empty.*/; |
cd80d74f | 2651 | } |
d62a17ae | 2652 | void rtadv_cmd_init(void) |
718e3744 | 2653 | { |
d62a17ae | 2654 | /* Empty.*/; |
718e3744 | 2655 | } |
0af3d691 MS |
2656 | |
2657 | void rtadv_add_prefix(struct zebra_if *zif, const struct prefix_ipv6 *p) | |
2658 | { | |
2659 | /* Empty.*/; | |
2660 | } | |
2661 | ||
2662 | void rtadv_delete_prefix(struct zebra_if *zif, const struct prefix *p) | |
2663 | { | |
2664 | /* Empty.*/; | |
2665 | } | |
2666 | ||
2667 | void rtadv_stop_ra(struct interface *ifp) | |
2668 | { | |
2669 | /* Empty.*/; | |
2670 | } | |
2671 | ||
2672 | void rtadv_stop_ra_all(void) | |
2673 | { | |
2674 | /* Empty.*/; | |
2675 | } | |
2676 | ||
e748c7a4 DS |
2677 | /* |
2678 | * If the end user does not have RADV enabled we should | |
2679 | * handle this better | |
2680 | */ | |
2681 | void zebra_interface_radv_disable(ZAPI_HANDLER_ARGS) | |
2682 | { | |
2683 | if (IS_ZEBRA_DEBUG_PACKET) | |
2684 | zlog_debug( | |
2685 | "Received %s command, but ZEBRA is not compiled with Router Advertisements on", | |
2686 | zserv_command_string(hdr->command)); | |
2687 | ||
2688 | return; | |
2689 | } | |
2690 | ||
2691 | void zebra_interface_radv_enable(ZAPI_HANDLER_ARGS) | |
2692 | { | |
2693 | if (IS_ZEBRA_DEBUG_PACKET) | |
2694 | zlog_debug( | |
2695 | "Received %s command, but ZEBRA is not compiled with Router Advertisements on", | |
2696 | zserv_command_string(hdr->command)); | |
2697 | ||
2698 | return; | |
2699 | } | |
2700 | ||
56c1f7d8 | 2701 | #endif /* HAVE_RTADV */ |