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718e3744 | 1 | /* Router advertisement |
34ccea1e | 2 | * Copyright (C) 2016 Cumulus Networks |
7cee1bb1 | 3 | * Copyright (C) 2005 6WIND <jean-mickael.guerin@6wind.com> |
718e3744 | 4 | * Copyright (C) 1999 Kunihiro Ishiguro |
5 | * | |
6 | * This file is part of GNU Zebra. | |
7 | * | |
8 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License as published by the | |
10 | * Free Software Foundation; either version 2, or (at your option) any | |
11 | * later version. | |
12 | * | |
13 | * GNU Zebra is distributed in the hope that it will be useful, but | |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * General Public License for more details. | |
17 | * | |
896014f4 DL |
18 | * You should have received a copy of the GNU General Public License along |
19 | * with this program; see the file COPYING; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
718e3744 | 21 | */ |
22 | ||
23 | #include <zebra.h> | |
24 | ||
25 | #include "memory.h" | |
26 | #include "sockopt.h" | |
27 | #include "thread.h" | |
28 | #include "if.h" | |
4a04e5f7 | 29 | #include "stream.h" |
718e3744 | 30 | #include "log.h" |
31 | #include "prefix.h" | |
32 | #include "linklist.h" | |
33 | #include "command.h" | |
edd7c245 | 34 | #include "privs.h" |
cd80d74f | 35 | #include "vrf.h" |
fe533c56 | 36 | #include "ns.h" |
43e52561 | 37 | #include "lib_errors.h" |
718e3744 | 38 | |
39 | #include "zebra/interface.h" | |
40 | #include "zebra/rtadv.h" | |
41 | #include "zebra/debug.h" | |
537d8ea9 | 42 | #include "zebra/rib.h" |
bf094f69 | 43 | #include "zebra/zapi_msg.h" |
7c551956 | 44 | #include "zebra/zebra_vrf.h" |
364fed6b | 45 | #include "zebra/zebra_errors.h" |
a3be9fa1 | 46 | #include "zebra/zebra_router.h" |
718e3744 | 47 | |
edd7c245 | 48 | extern struct zebra_privs_t zserv_privs; |
49 | ||
d62a17ae | 50 | #if defined(HAVE_RTADV) |
718e3744 | 51 | |
d3f604f0 DS |
52 | #ifndef VTYSH_EXTRACT_PL |
53 | #include "zebra/rtadv_clippy.c" | |
54 | #endif | |
55 | ||
bf8d3d6a | 56 | DEFINE_MTYPE_STATIC(ZEBRA, RTADV_PREFIX, "Router Advertisement Prefix"); |
7c2ddfb9 | 57 | DEFINE_MTYPE_STATIC(ZEBRA, ADV_IF, "Advertised Interface"); |
c1344b54 | 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 | ||
bf8d3d6a DL |
74 | DEFINE_MTYPE_STATIC(ZEBRA, RTADV_RDNSS, "Router Advertisement RDNSS"); |
75 | DEFINE_MTYPE_STATIC(ZEBRA, RTADV_DNSSL, "Router Advertisement DNSSL"); | |
110765e3 | 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 | |
7c2ddfb9 | 96 | static struct zebra_vrf *rtadv_interface_get_zvrf(const struct interface *ifp) |
9245fe61 | 97 | { |
7c2ddfb9 SW |
98 | /* We use the default vrf for rtadv handling except in netns */ |
99 | if (!vrf_is_backend_netns()) | |
100 | return vrf_info_lookup(VRF_DEFAULT); | |
101 | ||
102 | return vrf_info_lookup(ifp->vrf_id); | |
9245fe61 PG |
103 | } |
104 | ||
df9c8c57 | 105 | static int rtadv_increment_received(struct zebra_vrf *zvrf, ifindex_t *ifindex) |
911ad1e2 | 106 | { |
d62a17ae | 107 | int ret = -1; |
108 | struct interface *iface; | |
109 | struct zebra_if *zif; | |
110 | ||
df9c8c57 | 111 | iface = if_lookup_by_index(*ifindex, zvrf->vrf->vrf_id); |
d62a17ae | 112 | if (iface && iface->info) { |
113 | zif = iface->info; | |
114 | zif->ra_rcvd++; | |
115 | ret = 0; | |
116 | } | |
117 | return ret; | |
795b5abf QY |
118 | } |
119 | ||
df9c8c57 | 120 | static int rtadv_recv_packet(struct zebra_vrf *zvrf, int sock, uint8_t *buf, |
d62a17ae | 121 | int buflen, struct sockaddr_in6 *from, |
122 | ifindex_t *ifindex, int *hoplimit) | |
718e3744 | 123 | { |
d62a17ae | 124 | int ret; |
125 | struct msghdr msg; | |
126 | struct iovec iov; | |
127 | struct cmsghdr *cmsgptr; | |
128 | struct in6_addr dst; | |
129 | ||
130 | char adata[1024]; | |
131 | ||
132 | /* Fill in message and iovec. */ | |
0af35d90 | 133 | memset(&msg, 0, sizeof(msg)); |
d62a17ae | 134 | msg.msg_name = (void *)from; |
135 | msg.msg_namelen = sizeof(struct sockaddr_in6); | |
136 | msg.msg_iov = &iov; | |
137 | msg.msg_iovlen = 1; | |
138 | msg.msg_control = (void *)adata; | |
0d6f7fd6 | 139 | msg.msg_controllen = sizeof(adata); |
d62a17ae | 140 | iov.iov_base = buf; |
141 | iov.iov_len = buflen; | |
142 | ||
143 | /* If recvmsg fail return minus value. */ | |
144 | ret = recvmsg(sock, &msg, 0); | |
145 | if (ret < 0) | |
146 | return ret; | |
147 | ||
adf0e7c6 | 148 | for (cmsgptr = CMSG_FIRSTHDR(&msg); cmsgptr != NULL; |
d62a17ae | 149 | cmsgptr = CMSG_NXTHDR(&msg, cmsgptr)) { |
150 | /* I want interface index which this packet comes from. */ | |
151 | if (cmsgptr->cmsg_level == IPPROTO_IPV6 | |
152 | && cmsgptr->cmsg_type == IPV6_PKTINFO) { | |
153 | struct in6_pktinfo *ptr; | |
154 | ||
155 | ptr = (struct in6_pktinfo *)CMSG_DATA(cmsgptr); | |
156 | *ifindex = ptr->ipi6_ifindex; | |
157 | memcpy(&dst, &ptr->ipi6_addr, sizeof(ptr->ipi6_addr)); | |
158 | } | |
159 | ||
160 | /* Incoming packet's hop limit. */ | |
161 | if (cmsgptr->cmsg_level == IPPROTO_IPV6 | |
162 | && cmsgptr->cmsg_type == IPV6_HOPLIMIT) { | |
163 | int *hoptr = (int *)CMSG_DATA(cmsgptr); | |
164 | *hoplimit = *hoptr; | |
165 | } | |
b0b709ab | 166 | } |
795b5abf | 167 | |
df9c8c57 | 168 | rtadv_increment_received(zvrf, ifindex); |
d62a17ae | 169 | return ret; |
718e3744 | 170 | } |
171 | ||
172 | #define RTADV_MSG_SIZE 4096 | |
173 | ||
174 | /* Send router advertisement packet. */ | |
d7fc0e67 | 175 | static void rtadv_send_packet(int sock, struct interface *ifp, |
57dd8642 | 176 | enum ipv6_nd_suppress_ra_status stop) |
718e3744 | 177 | { |
d62a17ae | 178 | struct msghdr msg; |
179 | struct iovec iov; | |
180 | struct cmsghdr *cmsgptr; | |
181 | struct in6_pktinfo *pkt; | |
182 | struct sockaddr_in6 addr; | |
183 | static void *adata = NULL; | |
184 | unsigned char buf[RTADV_MSG_SIZE]; | |
185 | struct nd_router_advert *rtadv; | |
186 | int ret; | |
187 | int len = 0; | |
188 | struct zebra_if *zif; | |
189 | struct rtadv_prefix *rprefix; | |
d7c0a89a QY |
190 | uint8_t all_nodes_addr[] = {0xff, 0x02, 0, 0, 0, 0, 0, 0, |
191 | 0, 0, 0, 0, 0, 0, 0, 1}; | |
d62a17ae | 192 | struct listnode *node; |
d7c0a89a | 193 | uint16_t pkt_RouterLifetime; |
d62a17ae | 194 | |
195 | /* | |
196 | * Allocate control message bufffer. This is dynamic because | |
197 | * CMSG_SPACE is not guaranteed not to call a function. Note that | |
198 | * the size will be different on different architectures due to | |
199 | * differing alignment rules. | |
200 | */ | |
201 | if (adata == NULL) { | |
202 | /* XXX Free on shutdown. */ | |
b8aa3767 | 203 | adata = calloc(1, CMSG_SPACE(sizeof(struct in6_pktinfo))); |
d62a17ae | 204 | |
b8aa3767 | 205 | if (adata == NULL) { |
9df414fe | 206 | zlog_debug( |
d62a17ae | 207 | "rtadv_send_packet: can't malloc control data"); |
b8aa3767 DS |
208 | exit(-1); |
209 | } | |
d62a17ae | 210 | } |
211 | ||
212 | /* Logging of packet. */ | |
60077146 DS |
213 | if (IS_ZEBRA_DEBUG_PACKET) { |
214 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); | |
215 | ||
216 | zlog_debug("%s(%s:%u): Tx RA, socket %u", ifp->name, | |
217 | VRF_LOGNAME(vrf), ifp->ifindex, sock); | |
218 | } | |
d62a17ae | 219 | |
220 | /* Fill in sockaddr_in6. */ | |
221 | memset(&addr, 0, sizeof(struct sockaddr_in6)); | |
222 | addr.sin6_family = AF_INET6; | |
718e3744 | 223 | #ifdef SIN6_LEN |
d62a17ae | 224 | addr.sin6_len = sizeof(struct sockaddr_in6); |
718e3744 | 225 | #endif /* SIN6_LEN */ |
d62a17ae | 226 | addr.sin6_port = htons(IPPROTO_ICMPV6); |
227 | IPV6_ADDR_COPY(&addr.sin6_addr, all_nodes_addr); | |
228 | ||
229 | /* Fetch interface information. */ | |
230 | zif = ifp->info; | |
231 | ||
232 | /* Make router advertisement message. */ | |
233 | rtadv = (struct nd_router_advert *)buf; | |
234 | ||
235 | rtadv->nd_ra_type = ND_ROUTER_ADVERT; | |
236 | rtadv->nd_ra_code = 0; | |
237 | rtadv->nd_ra_cksum = 0; | |
238 | ||
fae01935 | 239 | rtadv->nd_ra_curhoplimit = zif->rtadv.AdvCurHopLimit; |
d62a17ae | 240 | |
241 | /* RFC4191: Default Router Preference is 0 if Router Lifetime is 0. */ | |
242 | rtadv->nd_ra_flags_reserved = zif->rtadv.AdvDefaultLifetime == 0 | |
243 | ? 0 | |
244 | : zif->rtadv.DefaultPreference; | |
245 | rtadv->nd_ra_flags_reserved <<= 3; | |
246 | ||
247 | if (zif->rtadv.AdvManagedFlag) | |
248 | rtadv->nd_ra_flags_reserved |= ND_RA_FLAG_MANAGED; | |
249 | if (zif->rtadv.AdvOtherConfigFlag) | |
250 | rtadv->nd_ra_flags_reserved |= ND_RA_FLAG_OTHER; | |
251 | if (zif->rtadv.AdvHomeAgentFlag) | |
252 | rtadv->nd_ra_flags_reserved |= ND_RA_FLAG_HOME_AGENT; | |
253 | /* Note that according to Neighbor Discovery (RFC 4861 [18]), | |
254 | * AdvDefaultLifetime is by default based on the value of | |
255 | * MaxRtrAdvInterval. AdvDefaultLifetime is used in the Router Lifetime | |
256 | * field of Router Advertisements. Given that this field is expressed | |
257 | * in seconds, a small MaxRtrAdvInterval value can result in a zero | |
258 | * value for this field. To prevent this, routers SHOULD keep | |
259 | * AdvDefaultLifetime in at least one second, even if the use of | |
260 | * MaxRtrAdvInterval would result in a smaller value. -- RFC6275, 7.5 */ | |
261 | pkt_RouterLifetime = | |
262 | zif->rtadv.AdvDefaultLifetime != -1 | |
263 | ? zif->rtadv.AdvDefaultLifetime | |
264 | : MAX(1, 0.003 * zif->rtadv.MaxRtrAdvInterval); | |
d7fc0e67 DS |
265 | |
266 | /* send RA lifetime of 0 before stopping. rfc4861/6.2.5 */ | |
267 | rtadv->nd_ra_router_lifetime = | |
268 | (stop == RA_SUPPRESS) ? htons(0) : htons(pkt_RouterLifetime); | |
d62a17ae | 269 | rtadv->nd_ra_reachable = htonl(zif->rtadv.AdvReachableTime); |
b19ac878 | 270 | rtadv->nd_ra_retransmit = htonl(zif->rtadv.AdvRetransTimer); |
d62a17ae | 271 | |
272 | len = sizeof(struct nd_router_advert); | |
273 | ||
274 | /* If both the Home Agent Preference and Home Agent Lifetime are set to | |
275 | * their default values specified above, this option SHOULD NOT be | |
276 | * included in the Router Advertisement messages sent by this home | |
277 | * agent. -- RFC6275, 7.4 */ | |
278 | if (zif->rtadv.AdvHomeAgentFlag | |
279 | && (zif->rtadv.HomeAgentPreference | |
280 | || zif->rtadv.HomeAgentLifetime != -1)) { | |
281 | struct nd_opt_homeagent_info *ndopt_hai = | |
282 | (struct nd_opt_homeagent_info *)(buf + len); | |
283 | ndopt_hai->nd_opt_hai_type = ND_OPT_HA_INFORMATION; | |
284 | ndopt_hai->nd_opt_hai_len = 1; | |
285 | ndopt_hai->nd_opt_hai_reserved = 0; | |
286 | ndopt_hai->nd_opt_hai_preference = | |
287 | htons(zif->rtadv.HomeAgentPreference); | |
288 | /* 16-bit unsigned integer. The lifetime associated with the | |
289 | * home | |
290 | * agent in units of seconds. The default value is the same as | |
291 | * the | |
292 | * Router Lifetime, as specified in the main body of the Router | |
293 | * Advertisement. The maximum value corresponds to 18.2 hours. | |
294 | * A | |
295 | * value of 0 MUST NOT be used. -- RFC6275, 7.5 */ | |
296 | ndopt_hai->nd_opt_hai_lifetime = | |
297 | htons(zif->rtadv.HomeAgentLifetime != -1 | |
298 | ? zif->rtadv.HomeAgentLifetime | |
299 | : MAX(1, pkt_RouterLifetime) /* 0 is OK | |
300 | for RL, | |
301 | but not | |
302 | for HAL*/ | |
9d303b37 | 303 | ); |
d62a17ae | 304 | len += sizeof(struct nd_opt_homeagent_info); |
305 | } | |
718e3744 | 306 | |
d62a17ae | 307 | if (zif->rtadv.AdvIntervalOption) { |
308 | struct nd_opt_adv_interval *ndopt_adv = | |
309 | (struct nd_opt_adv_interval *)(buf + len); | |
310 | ndopt_adv->nd_opt_ai_type = ND_OPT_ADV_INTERVAL; | |
311 | ndopt_adv->nd_opt_ai_len = 1; | |
312 | ndopt_adv->nd_opt_ai_reserved = 0; | |
313 | ndopt_adv->nd_opt_ai_interval = | |
314 | htonl(zif->rtadv.MaxRtrAdvInterval); | |
315 | len += sizeof(struct nd_opt_adv_interval); | |
316 | } | |
317 | ||
318 | /* Fill in prefix. */ | |
319 | for (ALL_LIST_ELEMENTS_RO(zif->rtadv.AdvPrefixList, node, rprefix)) { | |
320 | struct nd_opt_prefix_info *pinfo; | |
718e3744 | 321 | |
d62a17ae | 322 | pinfo = (struct nd_opt_prefix_info *)(buf + len); |
718e3744 | 323 | |
d62a17ae | 324 | pinfo->nd_opt_pi_type = ND_OPT_PREFIX_INFORMATION; |
325 | pinfo->nd_opt_pi_len = 4; | |
326 | pinfo->nd_opt_pi_prefix_len = rprefix->prefix.prefixlen; | |
327 | ||
328 | pinfo->nd_opt_pi_flags_reserved = 0; | |
329 | if (rprefix->AdvOnLinkFlag) | |
330 | pinfo->nd_opt_pi_flags_reserved |= | |
331 | ND_OPT_PI_FLAG_ONLINK; | |
332 | if (rprefix->AdvAutonomousFlag) | |
333 | pinfo->nd_opt_pi_flags_reserved |= ND_OPT_PI_FLAG_AUTO; | |
334 | if (rprefix->AdvRouterAddressFlag) | |
335 | pinfo->nd_opt_pi_flags_reserved |= ND_OPT_PI_FLAG_RADDR; | |
336 | ||
337 | pinfo->nd_opt_pi_valid_time = htonl(rprefix->AdvValidLifetime); | |
338 | pinfo->nd_opt_pi_preferred_time = | |
339 | htonl(rprefix->AdvPreferredLifetime); | |
340 | pinfo->nd_opt_pi_reserved2 = 0; | |
341 | ||
342 | IPV6_ADDR_COPY(&pinfo->nd_opt_pi_prefix, | |
343 | &rprefix->prefix.prefix); | |
344 | ||
d62a17ae | 345 | len += sizeof(struct nd_opt_prefix_info); |
346 | } | |
347 | ||
348 | /* Hardware address. */ | |
349 | if (ifp->hw_addr_len != 0) { | |
350 | buf[len++] = ND_OPT_SOURCE_LINKADDR; | |
351 | ||
352 | /* Option length should be rounded up to next octet if | |
353 | the link address does not end on an octet boundary. */ | |
354 | buf[len++] = (ifp->hw_addr_len + 9) >> 3; | |
355 | ||
356 | memcpy(buf + len, ifp->hw_addr, ifp->hw_addr_len); | |
357 | len += ifp->hw_addr_len; | |
358 | ||
359 | /* Pad option to end on an octet boundary. */ | |
360 | memset(buf + len, 0, -(ifp->hw_addr_len + 2) & 0x7); | |
361 | len += -(ifp->hw_addr_len + 2) & 0x7; | |
362 | } | |
363 | ||
364 | /* MTU */ | |
365 | if (zif->rtadv.AdvLinkMTU) { | |
366 | struct nd_opt_mtu *opt = (struct nd_opt_mtu *)(buf + len); | |
367 | opt->nd_opt_mtu_type = ND_OPT_MTU; | |
368 | opt->nd_opt_mtu_len = 1; | |
369 | opt->nd_opt_mtu_reserved = 0; | |
370 | opt->nd_opt_mtu_mtu = htonl(zif->rtadv.AdvLinkMTU); | |
371 | len += sizeof(struct nd_opt_mtu); | |
372 | } | |
373 | ||
7eab94f9 LS |
374 | /* |
375 | * There is no limit on the number of configurable recursive DNS | |
376 | * servers or search list entries. We don't want the RA message | |
377 | * to exceed the link's MTU (risking fragmentation) or even | |
378 | * blow the stack buffer allocated for it. | |
379 | */ | |
380 | size_t max_len = MIN(ifp->mtu6 - 40, sizeof(buf)); | |
381 | ||
3eb4fbb0 LS |
382 | /* Recursive DNS servers */ |
383 | struct rtadv_rdnss *rdnss; | |
384 | ||
385 | for (ALL_LIST_ELEMENTS_RO(zif->rtadv.AdvRDNSSList, node, rdnss)) { | |
7eab94f9 LS |
386 | size_t opt_len = |
387 | sizeof(struct nd_opt_rdnss) + sizeof(struct in6_addr); | |
388 | ||
389 | if (len + opt_len > max_len) { | |
60077146 DS |
390 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); |
391 | ||
7eab94f9 | 392 | zlog_warn( |
60077146 DS |
393 | "%s(%s:%u): Tx RA: RDNSS option would exceed MTU, omitting it", |
394 | ifp->name, VRF_LOGNAME(vrf), ifp->ifindex); | |
7eab94f9 LS |
395 | goto no_more_opts; |
396 | } | |
3eb4fbb0 LS |
397 | struct nd_opt_rdnss *opt = (struct nd_opt_rdnss *)(buf + len); |
398 | ||
399 | opt->nd_opt_rdnss_type = ND_OPT_RDNSS; | |
7eab94f9 | 400 | opt->nd_opt_rdnss_len = opt_len / 8; |
3eb4fbb0 LS |
401 | opt->nd_opt_rdnss_reserved = 0; |
402 | opt->nd_opt_rdnss_lifetime = htonl( | |
403 | rdnss->lifetime_set | |
404 | ? rdnss->lifetime | |
405 | : MAX(1, 0.003 * zif->rtadv.MaxRtrAdvInterval)); | |
406 | ||
407 | len += sizeof(struct nd_opt_rdnss); | |
7eab94f9 | 408 | |
3eb4fbb0 LS |
409 | IPV6_ADDR_COPY(buf + len, &rdnss->addr); |
410 | len += sizeof(struct in6_addr); | |
411 | } | |
412 | ||
413 | /* DNS search list */ | |
414 | struct rtadv_dnssl *dnssl; | |
415 | ||
416 | for (ALL_LIST_ELEMENTS_RO(zif->rtadv.AdvDNSSLList, node, dnssl)) { | |
7eab94f9 LS |
417 | size_t opt_len = sizeof(struct nd_opt_dnssl) |
418 | + ((dnssl->encoded_len + 7) & ~7); | |
419 | ||
420 | if (len + opt_len > max_len) { | |
421 | zlog_warn( | |
422 | "%s(%u): Tx RA: DNSSL option would exceed MTU, omitting it", | |
423 | ifp->name, ifp->ifindex); | |
424 | goto no_more_opts; | |
425 | } | |
3eb4fbb0 LS |
426 | struct nd_opt_dnssl *opt = (struct nd_opt_dnssl *)(buf + len); |
427 | ||
428 | opt->nd_opt_dnssl_type = ND_OPT_DNSSL; | |
7eab94f9 | 429 | opt->nd_opt_dnssl_len = opt_len / 8; |
3eb4fbb0 LS |
430 | opt->nd_opt_dnssl_reserved = 0; |
431 | opt->nd_opt_dnssl_lifetime = htonl( | |
432 | dnssl->lifetime_set | |
433 | ? dnssl->lifetime | |
434 | : MAX(1, 0.003 * zif->rtadv.MaxRtrAdvInterval)); | |
435 | ||
436 | len += sizeof(struct nd_opt_dnssl); | |
437 | ||
3eb4fbb0 LS |
438 | memcpy(buf + len, dnssl->encoded_name, dnssl->encoded_len); |
439 | len += dnssl->encoded_len; | |
440 | ||
441 | /* Zero-pad to 8-octet boundary */ | |
442 | while (len % 8) | |
443 | buf[len++] = '\0'; | |
3eb4fbb0 LS |
444 | } |
445 | ||
7eab94f9 LS |
446 | no_more_opts: |
447 | ||
d62a17ae | 448 | msg.msg_name = (void *)&addr; |
449 | msg.msg_namelen = sizeof(struct sockaddr_in6); | |
450 | msg.msg_iov = &iov; | |
451 | msg.msg_iovlen = 1; | |
452 | msg.msg_control = (void *)adata; | |
453 | msg.msg_controllen = CMSG_SPACE(sizeof(struct in6_pktinfo)); | |
454 | msg.msg_flags = 0; | |
455 | iov.iov_base = buf; | |
456 | iov.iov_len = len; | |
457 | ||
adf0e7c6 | 458 | cmsgptr = CMSG_FIRSTHDR(&msg); |
d62a17ae | 459 | cmsgptr->cmsg_len = CMSG_LEN(sizeof(struct in6_pktinfo)); |
460 | cmsgptr->cmsg_level = IPPROTO_IPV6; | |
461 | cmsgptr->cmsg_type = IPV6_PKTINFO; | |
462 | ||
463 | pkt = (struct in6_pktinfo *)CMSG_DATA(cmsgptr); | |
464 | memset(&pkt->ipi6_addr, 0, sizeof(struct in6_addr)); | |
465 | pkt->ipi6_ifindex = ifp->ifindex; | |
466 | ||
467 | ret = sendmsg(sock, &msg, 0); | |
468 | if (ret < 0) { | |
450971aa | 469 | flog_err_sys(EC_LIB_SOCKET, |
09c866e3 QY |
470 | "%s(%u): Tx RA failed, socket %u error %d (%s)", |
471 | ifp->name, ifp->ifindex, sock, errno, | |
472 | safe_strerror(errno)); | |
d62a17ae | 473 | } else |
474 | zif->ra_sent++; | |
718e3744 | 475 | } |
476 | ||
d62a17ae | 477 | static int rtadv_timer(struct thread *thread) |
718e3744 | 478 | { |
df9c8c57 | 479 | struct zebra_vrf *zvrf = THREAD_ARG(thread); |
d62a17ae | 480 | struct vrf *vrf; |
d62a17ae | 481 | struct interface *ifp; |
482 | struct zebra_if *zif; | |
483 | int period; | |
484 | ||
df9c8c57 | 485 | zvrf->rtadv.ra_timer = NULL; |
7c2ddfb9 | 486 | if (adv_if_list_count(&zvrf->rtadv.adv_msec_if) == 0) { |
d62a17ae | 487 | period = 1000; /* 1 s */ |
df9c8c57 | 488 | rtadv_event(zvrf, RTADV_TIMER, 1 /* 1 s */); |
d62a17ae | 489 | } else { |
490 | period = 10; /* 10 ms */ | |
df9c8c57 | 491 | rtadv_event(zvrf, RTADV_TIMER_MSEC, 10 /* 10 ms */); |
d62a17ae | 492 | } |
493 | ||
a2addae8 | 494 | RB_FOREACH (vrf, vrf_id_head, &vrfs_by_id) |
451fda4f | 495 | FOR_ALL_INTERFACES (vrf, ifp) { |
ef322b02 | 496 | if (if_is_loopback_or_vrf(ifp) |
a2addae8 RW |
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 | |
7c2ddfb9 SW |
524 | rtadv_send_packet(zvrf->rtadv.sock, ifp, |
525 | 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( | |
7c2ddfb9 SW |
538 | zvrf->rtadv.sock, ifp, |
539 | 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 | { |
7c2ddfb9 | 550 | struct zebra_vrf *zvrf; |
adee8f21 | 551 | struct zebra_if *zif; |
718e3744 | 552 | |
7c2ddfb9 | 553 | zvrf = rtadv_interface_get_zvrf(ifp); |
df9c8c57 | 554 | assert(zvrf); |
adee8f21 DS |
555 | zif = ifp->info; |
556 | ||
557 | /* | |
558 | * If FastRetransmit is enabled, send the RA immediately. | |
559 | * If not enabled but it has been more than MIN_DELAY_BETWEEN_RAS | |
560 | * (3 seconds) since the last RA was sent, send it now and reset | |
561 | * the timer to start at the max (configured) again. | |
562 | * If not enabled and it is less than 3 seconds since the last | |
563 | * RA packet was sent, set the timer for 3 seconds so the next | |
564 | * one will be sent with a minimum of 3 seconds between RAs. | |
565 | * RFC4861 sec 6.2.6 | |
566 | */ | |
567 | if ((zif->rtadv.UseFastRexmit) | |
568 | || (zif->rtadv.AdvIntervalTimer <= | |
569 | (zif->rtadv.MaxRtrAdvInterval - MIN_DELAY_BETWEEN_RAS))) { | |
7c2ddfb9 | 570 | rtadv_send_packet(zvrf->rtadv.sock, ifp, RA_ENABLE); |
adee8f21 DS |
571 | zif->rtadv.AdvIntervalTimer = zif->rtadv.MaxRtrAdvInterval; |
572 | } else | |
573 | zif->rtadv.AdvIntervalTimer = MIN_DELAY_BETWEEN_RAS; | |
718e3744 | 574 | } |
575 | ||
71974bf5 DS |
576 | /* |
577 | * This function processes optional attributes off of | |
578 | * end of a RA packet received. At this point in | |
579 | * time we only care about this in one situation | |
580 | * which is when a interface does not have a LL | |
581 | * v6 address. We still need to be able to install | |
582 | * the mac address for v4 to v6 resolution | |
583 | */ | |
584 | static void rtadv_process_optional(uint8_t *optional, unsigned int len, | |
585 | struct interface *ifp, | |
586 | struct sockaddr_in6 *addr) | |
587 | { | |
588 | char *mac; | |
589 | ||
590 | while (len > 0) { | |
591 | struct nd_opt_hdr *opt_hdr = (struct nd_opt_hdr *)optional; | |
592 | ||
593 | switch(opt_hdr->nd_opt_type) { | |
594 | case ND_OPT_SOURCE_LINKADDR: | |
595 | mac = (char *)(optional+2); | |
596 | if_nbr_mac_to_ipv4ll_neigh_update(ifp, mac, | |
597 | &addr->sin6_addr, 1); | |
598 | break; | |
599 | default: | |
600 | break; | |
601 | } | |
602 | ||
603 | len -= 8 * opt_hdr->nd_opt_len; | |
604 | optional += 8 * opt_hdr->nd_opt_len; | |
605 | } | |
606 | } | |
607 | ||
d7c0a89a | 608 | static void rtadv_process_advert(uint8_t *msg, unsigned int len, |
d62a17ae | 609 | struct interface *ifp, |
610 | struct sockaddr_in6 *addr) | |
718e3744 | 611 | { |
d62a17ae | 612 | struct nd_router_advert *radvert; |
613 | char addr_str[INET6_ADDRSTRLEN]; | |
614 | struct zebra_if *zif; | |
615 | struct prefix p; | |
718e3744 | 616 | |
d62a17ae | 617 | zif = ifp->info; |
a80beece | 618 | |
d62a17ae | 619 | inet_ntop(AF_INET6, &addr->sin6_addr, addr_str, INET6_ADDRSTRLEN); |
620 | ||
621 | if (len < sizeof(struct nd_router_advert)) { | |
60077146 DS |
622 | if (IS_ZEBRA_DEBUG_PACKET) { |
623 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); | |
624 | ||
625 | zlog_debug( | |
626 | "%s(%s:%u): Rx RA with invalid length %d from %s", | |
627 | ifp->name, VRF_LOGNAME(vrf), ifp->ifindex, len, | |
628 | addr_str); | |
629 | } | |
d62a17ae | 630 | return; |
631 | } | |
71974bf5 | 632 | |
d62a17ae | 633 | if (!IN6_IS_ADDR_LINKLOCAL(&addr->sin6_addr)) { |
71974bf5 DS |
634 | rtadv_process_optional(msg + sizeof(struct nd_router_advert), |
635 | len - sizeof(struct nd_router_advert), | |
636 | ifp, addr); | |
60077146 DS |
637 | if (IS_ZEBRA_DEBUG_PACKET) { |
638 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); | |
639 | ||
640 | zlog_debug( | |
641 | "%s(%s:%u): Rx RA with non-linklocal source address from %s", | |
642 | ifp->name, VRF_LOGNAME(vrf), ifp->ifindex, | |
643 | addr_str); | |
644 | } | |
d62a17ae | 645 | return; |
646 | } | |
647 | ||
648 | radvert = (struct nd_router_advert *)msg; | |
649 | ||
650 | if ((radvert->nd_ra_curhoplimit && zif->rtadv.AdvCurHopLimit) | |
651 | && (radvert->nd_ra_curhoplimit != zif->rtadv.AdvCurHopLimit)) { | |
9df414fe | 652 | flog_warn( |
e914ccbe | 653 | EC_ZEBRA_RA_PARAM_MISMATCH, |
d62a17ae | 654 | "%s(%u): Rx RA - our AdvCurHopLimit doesn't agree with %s", |
655 | ifp->name, ifp->ifindex, addr_str); | |
656 | } | |
657 | ||
658 | if ((radvert->nd_ra_flags_reserved & ND_RA_FLAG_MANAGED) | |
659 | && !zif->rtadv.AdvManagedFlag) { | |
9df414fe | 660 | flog_warn( |
e914ccbe | 661 | EC_ZEBRA_RA_PARAM_MISMATCH, |
d62a17ae | 662 | "%s(%u): Rx RA - our AdvManagedFlag doesn't agree with %s", |
663 | ifp->name, ifp->ifindex, addr_str); | |
664 | } | |
665 | ||
666 | if ((radvert->nd_ra_flags_reserved & ND_RA_FLAG_OTHER) | |
667 | && !zif->rtadv.AdvOtherConfigFlag) { | |
9df414fe | 668 | flog_warn( |
e914ccbe | 669 | EC_ZEBRA_RA_PARAM_MISMATCH, |
d62a17ae | 670 | "%s(%u): Rx RA - our AdvOtherConfigFlag doesn't agree with %s", |
671 | ifp->name, ifp->ifindex, addr_str); | |
672 | } | |
673 | ||
674 | if ((radvert->nd_ra_reachable && zif->rtadv.AdvReachableTime) | |
675 | && (ntohl(radvert->nd_ra_reachable) | |
676 | != zif->rtadv.AdvReachableTime)) { | |
9df414fe | 677 | flog_warn( |
e914ccbe | 678 | EC_ZEBRA_RA_PARAM_MISMATCH, |
d62a17ae | 679 | "%s(%u): Rx RA - our AdvReachableTime doesn't agree with %s", |
680 | ifp->name, ifp->ifindex, addr_str); | |
681 | } | |
682 | ||
b19ac878 DS |
683 | if ((ntohl(radvert->nd_ra_retransmit) |
684 | != (unsigned int)zif->rtadv.AdvRetransTimer)) { | |
9df414fe | 685 | flog_warn( |
e914ccbe | 686 | EC_ZEBRA_RA_PARAM_MISMATCH, |
d62a17ae | 687 | "%s(%u): Rx RA - our AdvRetransTimer doesn't agree with %s", |
688 | ifp->name, ifp->ifindex, addr_str); | |
689 | } | |
690 | ||
691 | /* Create entry for neighbor if not known. */ | |
692 | p.family = AF_INET6; | |
a85297a7 | 693 | IPV6_ADDR_COPY(&p.u.prefix6, &addr->sin6_addr); |
f4d81e55 | 694 | p.prefixlen = IPV6_MAX_BITLEN; |
d62a17ae | 695 | |
696 | if (!nbr_connected_check(ifp, &p)) | |
697 | nbr_connected_add_ipv6(ifp, &addr->sin6_addr); | |
718e3744 | 698 | } |
699 | ||
d62a17ae | 700 | |
d7c0a89a | 701 | static void rtadv_process_packet(uint8_t *buf, unsigned int len, |
d62a17ae | 702 | ifindex_t ifindex, int hoplimit, |
703 | struct sockaddr_in6 *from, | |
df9c8c57 | 704 | struct zebra_vrf *zvrf) |
718e3744 | 705 | { |
d62a17ae | 706 | struct icmp6_hdr *icmph; |
707 | struct interface *ifp; | |
708 | struct zebra_if *zif; | |
709 | char addr_str[INET6_ADDRSTRLEN]; | |
710 | ||
711 | inet_ntop(AF_INET6, &from->sin6_addr, addr_str, INET6_ADDRSTRLEN); | |
712 | ||
713 | /* Interface search. */ | |
df9c8c57 | 714 | ifp = if_lookup_by_index(ifindex, zvrf->vrf->vrf_id); |
d62a17ae | 715 | if (ifp == NULL) { |
e914ccbe | 716 | flog_warn(EC_ZEBRA_UNKNOWN_INTERFACE, |
9df414fe | 717 | "RA/RS received on unknown IF %u from %s", ifindex, |
d62a17ae | 718 | addr_str); |
719 | return; | |
720 | } | |
721 | ||
60077146 DS |
722 | if (IS_ZEBRA_DEBUG_PACKET) { |
723 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); | |
724 | ||
725 | zlog_debug("%s(%s:%u): Rx RA/RS len %d from %s", ifp->name, | |
726 | VRF_LOGNAME(vrf), ifp->ifindex, len, addr_str); | |
727 | } | |
d62a17ae | 728 | |
ef322b02 | 729 | if (if_is_loopback_or_vrf(ifp)) |
d62a17ae | 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. */ | |
7c2ddfb9 | 792 | rtadv_event(zvrf, RTADV_READ, 0); |
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 | ||
7c2ddfb9 SW |
866 | static struct adv_if *adv_if_new(const char *name) |
867 | { | |
868 | struct adv_if *new; | |
869 | ||
870 | new = XCALLOC(MTYPE_ADV_IF, sizeof(struct adv_if)); | |
871 | ||
872 | strlcpy(new->name, name, sizeof(new->name)); | |
873 | ||
874 | return new; | |
875 | } | |
876 | ||
877 | static void adv_if_free(struct adv_if *adv_if) | |
878 | { | |
879 | XFREE(MTYPE_ADV_IF, adv_if); | |
880 | } | |
881 | ||
2a356cee | 882 | static bool adv_if_is_empty_internal(const struct adv_if_list_head *adv_if_head) |
7c2ddfb9 SW |
883 | { |
884 | return adv_if_list_count(adv_if_head) ? false : true; | |
885 | } | |
886 | ||
887 | static struct adv_if *adv_if_add_internal(struct adv_if_list_head *adv_if_head, | |
888 | const char *name) | |
889 | { | |
890 | struct adv_if adv_if_lookup = {}; | |
891 | struct adv_if *adv_if = NULL; | |
892 | ||
893 | strlcpy(adv_if_lookup.name, name, sizeof(adv_if_lookup.name)); | |
894 | adv_if = adv_if_list_find(adv_if_head, &adv_if_lookup); | |
895 | ||
896 | if (adv_if != NULL) | |
897 | return adv_if; | |
898 | ||
899 | adv_if = adv_if_new(adv_if_lookup.name); | |
900 | adv_if_list_add(adv_if_head, adv_if); | |
901 | ||
902 | return NULL; | |
903 | } | |
904 | ||
905 | static struct adv_if *adv_if_del_internal(struct adv_if_list_head *adv_if_head, | |
906 | const char *name) | |
907 | { | |
908 | struct adv_if adv_if_lookup = {}; | |
909 | struct adv_if *adv_if = NULL; | |
910 | ||
911 | strlcpy(adv_if_lookup.name, name, sizeof(adv_if_lookup.name)); | |
912 | adv_if = adv_if_list_find(adv_if_head, &adv_if_lookup); | |
913 | ||
914 | if (adv_if == NULL) | |
915 | return NULL; | |
916 | ||
917 | adv_if_list_del(adv_if_head, adv_if); | |
918 | ||
919 | return adv_if; | |
920 | } | |
921 | ||
922 | static void adv_if_clean_internal(struct adv_if_list_head *adv_if_head) | |
923 | { | |
924 | struct adv_if *node = NULL; | |
925 | ||
926 | if (!adv_if_is_empty_internal(adv_if_head)) { | |
927 | frr_each_safe (adv_if_list, adv_if_head, node) { | |
928 | adv_if_list_del(adv_if_head, node); | |
929 | adv_if_free(node); | |
930 | } | |
931 | } | |
932 | ||
933 | adv_if_list_fini(adv_if_head); | |
934 | } | |
935 | ||
936 | ||
937 | /* | |
938 | * Add to list. On Success, return NULL, otherwise return already existing | |
939 | * adv_if. | |
940 | */ | |
941 | static struct adv_if *adv_if_add(struct zebra_vrf *zvrf, const char *name) | |
942 | { | |
943 | struct adv_if *adv_if = NULL; | |
944 | ||
945 | adv_if = adv_if_add_internal(&zvrf->rtadv.adv_if, name); | |
946 | ||
947 | if (adv_if != NULL) | |
948 | return adv_if; | |
949 | ||
950 | if (IS_ZEBRA_DEBUG_EVENT) { | |
951 | struct vrf *vrf = zvrf->vrf; | |
952 | ||
0bcf7589 | 953 | zlog_debug("%s: %s:%u IF %s count: %zu", __func__, |
7c2ddfb9 SW |
954 | VRF_LOGNAME(vrf), zvrf_id(zvrf), name, |
955 | adv_if_list_count(&zvrf->rtadv.adv_if)); | |
956 | } | |
957 | ||
958 | return NULL; | |
959 | } | |
960 | ||
961 | /* | |
962 | * Del from list. On Success, return the adv_if, otherwise return NULL. Caller | |
963 | * frees. | |
964 | */ | |
965 | static struct adv_if *adv_if_del(struct zebra_vrf *zvrf, const char *name) | |
966 | { | |
967 | struct adv_if *adv_if = NULL; | |
968 | ||
969 | adv_if = adv_if_del_internal(&zvrf->rtadv.adv_if, name); | |
970 | ||
971 | if (adv_if == NULL) | |
972 | return NULL; | |
973 | ||
974 | if (IS_ZEBRA_DEBUG_EVENT) { | |
975 | struct vrf *vrf = zvrf->vrf; | |
976 | ||
0bcf7589 | 977 | zlog_debug("%s: %s:%u IF %s count: %zu", __func__, |
7c2ddfb9 SW |
978 | VRF_LOGNAME(vrf), zvrf_id(zvrf), name, |
979 | adv_if_list_count(&zvrf->rtadv.adv_if)); | |
980 | } | |
981 | ||
982 | return adv_if; | |
983 | } | |
984 | ||
985 | /* | |
986 | * Add to list. On Success, return NULL, otherwise return already existing | |
987 | * adv_if. | |
988 | */ | |
989 | static struct adv_if *adv_msec_if_add(struct zebra_vrf *zvrf, const char *name) | |
990 | { | |
991 | struct adv_if *adv_if = NULL; | |
992 | ||
993 | adv_if = adv_if_add_internal(&zvrf->rtadv.adv_msec_if, name); | |
994 | ||
995 | if (adv_if != NULL) | |
996 | return adv_if; | |
997 | ||
998 | if (IS_ZEBRA_DEBUG_EVENT) { | |
999 | struct vrf *vrf = zvrf->vrf; | |
1000 | ||
0bcf7589 | 1001 | zlog_debug("%s: %s:%u IF %s count: %zu", __func__, |
7c2ddfb9 SW |
1002 | VRF_LOGNAME(vrf), zvrf_id(zvrf), name, |
1003 | adv_if_list_count(&zvrf->rtadv.adv_msec_if)); | |
1004 | } | |
1005 | ||
1006 | return NULL; | |
1007 | } | |
1008 | ||
1009 | /* | |
1010 | * Del from list. On Success, return the adv_if, otherwise return NULL. Caller | |
1011 | * frees. | |
1012 | */ | |
1013 | static struct adv_if *adv_msec_if_del(struct zebra_vrf *zvrf, const char *name) | |
1014 | { | |
1015 | struct adv_if *adv_if = NULL; | |
1016 | ||
1017 | adv_if = adv_if_del_internal(&zvrf->rtadv.adv_msec_if, name); | |
1018 | ||
1019 | if (adv_if == NULL) | |
1020 | return NULL; | |
1021 | ||
1022 | if (IS_ZEBRA_DEBUG_EVENT) { | |
1023 | struct vrf *vrf = zvrf->vrf; | |
1024 | ||
0bcf7589 | 1025 | zlog_debug("%s: %s:%u IF %s count: %zu", __func__, |
7c2ddfb9 SW |
1026 | VRF_LOGNAME(vrf), zvrf_id(zvrf), name, |
1027 | adv_if_list_count(&zvrf->rtadv.adv_msec_if)); | |
1028 | } | |
1029 | ||
1030 | return adv_if; | |
1031 | } | |
1032 | ||
1033 | /* Clean adv_if list, called on vrf terminate */ | |
1034 | static void adv_if_clean(struct zebra_vrf *zvrf) | |
1035 | { | |
1036 | if (IS_ZEBRA_DEBUG_EVENT) { | |
1037 | struct vrf *vrf = zvrf->vrf; | |
1038 | ||
0bcf7589 | 1039 | zlog_debug("%s: %s:%u count: %zu -> 0", __func__, |
7c2ddfb9 SW |
1040 | VRF_LOGNAME(vrf), zvrf_id(zvrf), |
1041 | adv_if_list_count(&zvrf->rtadv.adv_if)); | |
1042 | } | |
1043 | ||
1044 | adv_if_clean_internal(&zvrf->rtadv.adv_if); | |
1045 | } | |
1046 | ||
1047 | /* Clean adv_msec_if list, called on vrf terminate */ | |
1048 | static void adv_msec_if_clean(struct zebra_vrf *zvrf) | |
1049 | { | |
1050 | if (IS_ZEBRA_DEBUG_EVENT) { | |
1051 | struct vrf *vrf = zvrf->vrf; | |
1052 | ||
0bcf7589 | 1053 | zlog_debug("%s: %s:%u count: %zu -> 0", __func__, |
7c2ddfb9 SW |
1054 | VRF_LOGNAME(vrf), zvrf_id(zvrf), |
1055 | adv_if_list_count(&zvrf->rtadv.adv_msec_if)); | |
1056 | } | |
1057 | ||
1058 | adv_if_clean_internal(&zvrf->rtadv.adv_msec_if); | |
1059 | } | |
1060 | ||
d62a17ae | 1061 | static struct rtadv_prefix *rtadv_prefix_new(void) |
718e3744 | 1062 | { |
d62a17ae | 1063 | return XCALLOC(MTYPE_RTADV_PREFIX, sizeof(struct rtadv_prefix)); |
718e3744 | 1064 | } |
1065 | ||
d62a17ae | 1066 | static void rtadv_prefix_free(struct rtadv_prefix *rtadv_prefix) |
718e3744 | 1067 | { |
d62a17ae | 1068 | XFREE(MTYPE_RTADV_PREFIX, rtadv_prefix); |
1069 | } | |
718e3744 | 1070 | |
d62a17ae | 1071 | static struct rtadv_prefix *rtadv_prefix_lookup(struct list *rplist, |
1072 | struct prefix_ipv6 *p) | |
1073 | { | |
1074 | struct listnode *node; | |
1075 | struct rtadv_prefix *rprefix; | |
1076 | ||
1077 | for (ALL_LIST_ELEMENTS_RO(rplist, node, rprefix)) | |
1078 | if (prefix_same((struct prefix *)&rprefix->prefix, | |
1079 | (struct prefix *)p)) | |
1080 | return rprefix; | |
1081 | return NULL; | |
718e3744 | 1082 | } |
1083 | ||
d62a17ae | 1084 | static struct rtadv_prefix *rtadv_prefix_get(struct list *rplist, |
1085 | struct prefix_ipv6 *p) | |
718e3744 | 1086 | { |
d62a17ae | 1087 | struct rtadv_prefix *rprefix; |
1088 | ||
1089 | rprefix = rtadv_prefix_lookup(rplist, p); | |
1090 | if (rprefix) | |
1091 | return rprefix; | |
718e3744 | 1092 | |
d62a17ae | 1093 | rprefix = rtadv_prefix_new(); |
1094 | memcpy(&rprefix->prefix, p, sizeof(struct prefix_ipv6)); | |
1095 | listnode_add(rplist, rprefix); | |
718e3744 | 1096 | |
d62a17ae | 1097 | return rprefix; |
718e3744 | 1098 | } |
1099 | ||
2a855763 DS |
1100 | static void rtadv_prefix_set_defaults(struct rtadv_prefix *rp) |
1101 | { | |
1102 | rp->AdvAutonomousFlag = 1; | |
1103 | rp->AdvOnLinkFlag = 1; | |
1104 | rp->AdvRouterAddressFlag = 0; | |
1105 | rp->AdvPreferredLifetime = RTADV_PREFERRED_LIFETIME; | |
1106 | rp->AdvValidLifetime = RTADV_VALID_LIFETIME; | |
1107 | } | |
1108 | ||
d62a17ae | 1109 | static void rtadv_prefix_set(struct zebra_if *zif, struct rtadv_prefix *rp) |
718e3744 | 1110 | { |
d62a17ae | 1111 | struct rtadv_prefix *rprefix; |
1112 | ||
1113 | rprefix = rtadv_prefix_get(zif->rtadv.AdvPrefixList, &rp->prefix); | |
1114 | ||
2a855763 DS |
1115 | /* |
1116 | * Set parameters based on where the prefix is created. | |
1117 | * If auto-created based on kernel address addition, set the | |
1118 | * default values. If created from a manual "ipv6 nd prefix" | |
1119 | * command, take the parameters from the manual command. Note | |
1120 | * that if the manual command exists, the default values will | |
1121 | * not overwrite the manual values. | |
1122 | */ | |
1123 | if (rp->AdvPrefixCreate == PREFIX_SRC_MANUAL) { | |
1124 | if (rprefix->AdvPrefixCreate == PREFIX_SRC_AUTO) | |
1125 | rprefix->AdvPrefixCreate = PREFIX_SRC_BOTH; | |
1126 | else | |
1127 | rprefix->AdvPrefixCreate = PREFIX_SRC_MANUAL; | |
1128 | ||
1129 | rprefix->AdvAutonomousFlag = rp->AdvAutonomousFlag; | |
1130 | rprefix->AdvOnLinkFlag = rp->AdvOnLinkFlag; | |
1131 | rprefix->AdvRouterAddressFlag = rp->AdvRouterAddressFlag; | |
1132 | rprefix->AdvPreferredLifetime = rp->AdvPreferredLifetime; | |
1133 | rprefix->AdvValidLifetime = rp->AdvValidLifetime; | |
1134 | } else if (rp->AdvPrefixCreate == PREFIX_SRC_AUTO) { | |
1135 | if (rprefix->AdvPrefixCreate == PREFIX_SRC_MANUAL) | |
1136 | rprefix->AdvPrefixCreate = PREFIX_SRC_BOTH; | |
1137 | else { | |
1138 | rprefix->AdvPrefixCreate = PREFIX_SRC_AUTO; | |
1139 | rtadv_prefix_set_defaults(rprefix); | |
1140 | } | |
1141 | } | |
718e3744 | 1142 | } |
1143 | ||
d62a17ae | 1144 | static int rtadv_prefix_reset(struct zebra_if *zif, struct rtadv_prefix *rp) |
718e3744 | 1145 | { |
d62a17ae | 1146 | struct rtadv_prefix *rprefix; |
1147 | ||
1148 | rprefix = rtadv_prefix_lookup(zif->rtadv.AdvPrefixList, &rp->prefix); | |
1149 | if (rprefix != NULL) { | |
2a855763 DS |
1150 | |
1151 | /* | |
1152 | * When deleting an address from the list, need to take care | |
1153 | * it wasn't defined both automatically via kernel | |
1154 | * address addition as well as manually by vtysh cli. If both, | |
1155 | * we don't actually delete but may change the parameters | |
1156 | * back to default if a manually defined entry is deleted. | |
1157 | */ | |
1158 | if (rp->AdvPrefixCreate == PREFIX_SRC_MANUAL) { | |
1159 | if (rprefix->AdvPrefixCreate == PREFIX_SRC_BOTH) { | |
1160 | rprefix->AdvPrefixCreate = PREFIX_SRC_AUTO; | |
1161 | rtadv_prefix_set_defaults(rprefix); | |
1162 | return 1; | |
1163 | } | |
1164 | } else if (rp->AdvPrefixCreate == PREFIX_SRC_AUTO) { | |
1165 | if (rprefix->AdvPrefixCreate == PREFIX_SRC_BOTH) { | |
1166 | rprefix->AdvPrefixCreate = PREFIX_SRC_MANUAL; | |
1167 | return 1; | |
1168 | } | |
1169 | } | |
1170 | ||
d62a17ae | 1171 | listnode_delete(zif->rtadv.AdvPrefixList, (void *)rprefix); |
1172 | rtadv_prefix_free(rprefix); | |
1173 | return 1; | |
1174 | } else | |
1175 | return 0; | |
718e3744 | 1176 | } |
1177 | ||
2a855763 DS |
1178 | /* Add IPv6 prefixes learned from the kernel to the RA prefix list */ |
1179 | void rtadv_add_prefix(struct zebra_if *zif, const struct prefix_ipv6 *p) | |
1180 | { | |
1181 | struct rtadv_prefix rp; | |
1182 | ||
1183 | rp.prefix = *p; | |
1184 | apply_mask_ipv6(&rp.prefix); | |
1185 | rp.AdvPrefixCreate = PREFIX_SRC_AUTO; | |
1186 | rtadv_prefix_set(zif, &rp); | |
1187 | } | |
1188 | ||
1189 | /* Delete IPv6 prefixes removed by the kernel from the RA prefix list */ | |
1190 | void rtadv_delete_prefix(struct zebra_if *zif, const struct prefix *p) | |
1191 | { | |
1192 | struct rtadv_prefix rp; | |
1193 | ||
1194 | rp.prefix = *((struct prefix_ipv6 *)p); | |
1195 | apply_mask_ipv6(&rp.prefix); | |
1196 | rp.AdvPrefixCreate = PREFIX_SRC_AUTO; | |
1197 | rtadv_prefix_reset(zif, &rp); | |
1198 | } | |
1199 | ||
d62a17ae | 1200 | static void ipv6_nd_suppress_ra_set(struct interface *ifp, |
57dd8642 | 1201 | enum ipv6_nd_suppress_ra_status status) |
b6120505 | 1202 | { |
d62a17ae | 1203 | struct zebra_if *zif; |
1204 | struct zebra_vrf *zvrf; | |
7c2ddfb9 | 1205 | struct adv_if *adv_if = NULL; |
d62a17ae | 1206 | |
1207 | zif = ifp->info; | |
7c2ddfb9 SW |
1208 | |
1209 | zvrf = rtadv_interface_get_zvrf(ifp); | |
d62a17ae | 1210 | |
1211 | if (status == RA_SUPPRESS) { | |
1212 | /* RA is currently enabled */ | |
1213 | if (zif->rtadv.AdvSendAdvertisements) { | |
7c2ddfb9 | 1214 | rtadv_send_packet(zvrf->rtadv.sock, ifp, RA_SUPPRESS); |
d62a17ae | 1215 | zif->rtadv.AdvSendAdvertisements = 0; |
1216 | zif->rtadv.AdvIntervalTimer = 0; | |
d62a17ae | 1217 | |
7c2ddfb9 SW |
1218 | adv_if = adv_if_del(zvrf, ifp->name); |
1219 | if (adv_if == NULL) | |
1220 | return; /* Nothing to delete */ | |
1221 | ||
1222 | adv_if_free(adv_if); | |
d62a17ae | 1223 | |
7c2ddfb9 SW |
1224 | if_leave_all_router(zvrf->rtadv.sock, ifp); |
1225 | ||
1226 | if (adv_if_list_count(&zvrf->rtadv.adv_if) == 0) | |
df9c8c57 | 1227 | rtadv_event(zvrf, RTADV_STOP, 0); |
d62a17ae | 1228 | } |
1229 | } else { | |
1230 | if (!zif->rtadv.AdvSendAdvertisements) { | |
1231 | zif->rtadv.AdvSendAdvertisements = 1; | |
1232 | zif->rtadv.AdvIntervalTimer = 0; | |
adee8f21 DS |
1233 | if ((zif->rtadv.MaxRtrAdvInterval >= 1000) |
1234 | && zif->rtadv.UseFastRexmit) { | |
1235 | /* | |
1236 | * Enable Fast RA only when RA interval is in | |
1237 | * secs and Fast RA retransmit is enabled | |
1238 | */ | |
d62a17ae | 1239 | zif->rtadv.inFastRexmit = 1; |
1240 | zif->rtadv.NumFastReXmitsRemain = | |
1241 | RTADV_NUM_FAST_REXMITS; | |
1242 | } | |
1243 | ||
7c2ddfb9 SW |
1244 | adv_if = adv_if_add(zvrf, ifp->name); |
1245 | if (adv_if != NULL) | |
1246 | return; /* Alread added */ | |
d62a17ae | 1247 | |
7c2ddfb9 SW |
1248 | if_join_all_router(zvrf->rtadv.sock, ifp); |
1249 | ||
1250 | if (adv_if_list_count(&zvrf->rtadv.adv_if) == 1) | |
1251 | rtadv_event(zvrf, RTADV_START, 0); | |
d62a17ae | 1252 | } |
1253 | } | |
b6120505 DW |
1254 | } |
1255 | ||
4a04e5f7 | 1256 | /* |
1257 | * Handle client (BGP) message to enable or disable IPv6 RA on an interface. | |
1258 | * Note that while the client could request RA on an interface on which the | |
1259 | * operator has not enabled RA, RA won't be disabled upon client request | |
5c81b96a | 1260 | * if the operator has explicitly enabled RA. The enable request can also |
1261 | * specify a RA interval (in seconds). | |
4a04e5f7 | 1262 | */ |
1002497a | 1263 | static void zebra_interface_radv_set(ZAPI_HANDLER_ARGS, int enable) |
4a04e5f7 | 1264 | { |
d62a17ae | 1265 | struct stream *s; |
ec93aa12 | 1266 | ifindex_t ifindex; |
d62a17ae | 1267 | struct interface *ifp; |
1268 | struct zebra_if *zif; | |
bbad0276 | 1269 | uint32_t ra_interval; |
d62a17ae | 1270 | |
1002497a | 1271 | s = msg; |
d62a17ae | 1272 | |
1273 | /* Get interface index and RA interval. */ | |
ec93aa12 | 1274 | STREAM_GETL(s, ifindex); |
bbad0276 | 1275 | STREAM_GETL(s, ra_interval); |
d62a17ae | 1276 | |
60077146 DS |
1277 | if (IS_ZEBRA_DEBUG_EVENT) { |
1278 | struct vrf *vrf = zvrf->vrf; | |
1279 | ||
1280 | zlog_debug("%s:%u: IF %u RA %s from client %s, interval %ums", | |
1281 | VRF_LOGNAME(vrf), zvrf_id(zvrf), ifindex, | |
1002497a | 1282 | enable ? "enable" : "disable", |
d62a17ae | 1283 | zebra_route_string(client->proto), ra_interval); |
60077146 | 1284 | } |
d62a17ae | 1285 | |
1286 | /* Locate interface and check VRF match. */ | |
df9c8c57 | 1287 | ifp = if_lookup_by_index(ifindex, zvrf->vrf->vrf_id); |
d62a17ae | 1288 | if (!ifp) { |
60077146 DS |
1289 | struct vrf *vrf = zvrf->vrf; |
1290 | ||
e914ccbe | 1291 | flog_warn(EC_ZEBRA_UNKNOWN_INTERFACE, |
60077146 DS |
1292 | "%s:%u: IF %u RA %s client %s - interface unknown", |
1293 | VRF_LOGNAME(vrf), zvrf_id(zvrf), ifindex, | |
1294 | enable ? "enable" : "disable", | |
d62a17ae | 1295 | zebra_route_string(client->proto)); |
1296 | return; | |
1297 | } | |
7c2ddfb9 | 1298 | if (vrf_is_backend_netns() && ifp->vrf_id != zvrf_id(zvrf)) { |
60077146 DS |
1299 | struct vrf *vrf = zvrf->vrf; |
1300 | ||
9df414fe | 1301 | zlog_debug( |
60077146 DS |
1302 | "%s:%u: IF %u RA %s client %s - VRF mismatch, IF VRF %u", |
1303 | VRF_LOGNAME(vrf), zvrf_id(zvrf), ifindex, | |
1304 | enable ? "enable" : "disable", | |
a36898e7 | 1305 | zebra_route_string(client->proto), ifp->vrf_id); |
d62a17ae | 1306 | return; |
1307 | } | |
1308 | ||
1309 | zif = ifp->info; | |
1002497a | 1310 | if (enable) { |
3ea48364 | 1311 | SET_FLAG(zif->rtadv.ra_configured, BGP_RA_CONFIGURED); |
d62a17ae | 1312 | ipv6_nd_suppress_ra_set(ifp, RA_ENABLE); |
1313 | if (ra_interval | |
40441c3d | 1314 | && (ra_interval * 1000) < (unsigned int) zif->rtadv.MaxRtrAdvInterval |
996c9314 LB |
1315 | && !CHECK_FLAG(zif->rtadv.ra_configured, |
1316 | VTY_RA_INTERVAL_CONFIGURED)) | |
d62a17ae | 1317 | zif->rtadv.MaxRtrAdvInterval = ra_interval * 1000; |
1318 | } else { | |
3ea48364 DS |
1319 | UNSET_FLAG(zif->rtadv.ra_configured, BGP_RA_CONFIGURED); |
1320 | if (!CHECK_FLAG(zif->rtadv.ra_configured, | |
1321 | VTY_RA_INTERVAL_CONFIGURED)) | |
d62a17ae | 1322 | zif->rtadv.MaxRtrAdvInterval = |
1323 | RTADV_MAX_RTR_ADV_INTERVAL; | |
3ea48364 | 1324 | if (!CHECK_FLAG(zif->rtadv.ra_configured, VTY_RA_CONFIGURED)) |
d62a17ae | 1325 | ipv6_nd_suppress_ra_set(ifp, RA_SUPPRESS); |
d62a17ae | 1326 | } |
ec93aa12 DS |
1327 | stream_failure: |
1328 | return; | |
4a04e5f7 | 1329 | } |
1330 | ||
d7fc0e67 DS |
1331 | /* |
1332 | * send router lifetime value of zero in RAs on this interface since we're | |
1333 | * ceasing to advertise and want to let our neighbors know. | |
1334 | * RFC 4861 secion 6.2.5 | |
1335 | */ | |
1336 | void rtadv_stop_ra(struct interface *ifp) | |
1337 | { | |
1338 | struct zebra_if *zif; | |
1339 | struct zebra_vrf *zvrf; | |
1340 | ||
1341 | zif = ifp->info; | |
7c2ddfb9 | 1342 | zvrf = rtadv_interface_get_zvrf(ifp); |
d7fc0e67 DS |
1343 | |
1344 | if (zif->rtadv.AdvSendAdvertisements) | |
7c2ddfb9 | 1345 | rtadv_send_packet(zvrf->rtadv.sock, ifp, RA_SUPPRESS); |
d7fc0e67 DS |
1346 | } |
1347 | ||
1348 | /* | |
5a7aea85 | 1349 | * Send router lifetime value of zero in RAs on all interfaces since we're |
d7fc0e67 DS |
1350 | * ceasing to advertise globally and want to let all of our neighbors know |
1351 | * RFC 4861 secion 6.2.5 | |
5a7aea85 DS |
1352 | * |
1353 | * Delete all ipv6 global prefixes added to the router advertisement prefix | |
1354 | * lists prior to ceasing. | |
d7fc0e67 DS |
1355 | */ |
1356 | void rtadv_stop_ra_all(void) | |
1357 | { | |
1358 | struct vrf *vrf; | |
1359 | struct interface *ifp; | |
5a7aea85 DS |
1360 | struct listnode *node, *nnode; |
1361 | struct zebra_if *zif; | |
1362 | struct rtadv_prefix *rprefix; | |
d7fc0e67 DS |
1363 | |
1364 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) | |
5a7aea85 DS |
1365 | FOR_ALL_INTERFACES (vrf, ifp) { |
1366 | zif = ifp->info; | |
1367 | ||
1368 | for (ALL_LIST_ELEMENTS(zif->rtadv.AdvPrefixList, | |
1369 | node, nnode, rprefix)) | |
1370 | rtadv_prefix_reset(zif, rprefix); | |
1371 | ||
d7fc0e67 | 1372 | rtadv_stop_ra(ifp); |
5a7aea85 | 1373 | } |
d7fc0e67 DS |
1374 | } |
1375 | ||
89f4e507 QY |
1376 | void zebra_interface_radv_disable(ZAPI_HANDLER_ARGS) |
1377 | { | |
1002497a | 1378 | zebra_interface_radv_set(client, hdr, msg, zvrf, 0); |
89f4e507 | 1379 | } |
89f4e507 QY |
1380 | void zebra_interface_radv_enable(ZAPI_HANDLER_ARGS) |
1381 | { | |
1002497a | 1382 | zebra_interface_radv_set(client, hdr, msg, zvrf, 1); |
89f4e507 QY |
1383 | } |
1384 | ||
2a356cee SW |
1385 | static void show_zvrf_rtadv_adv_if_helper(struct vty *vty, |
1386 | struct adv_if_list_head *adv_if_head) | |
1387 | { | |
1388 | struct adv_if *node = NULL; | |
1389 | ||
1390 | if (!adv_if_is_empty_internal(adv_if_head)) { | |
1391 | frr_each (adv_if_list, adv_if_head, node) { | |
1392 | vty_out(vty, " %s\n", node->name); | |
1393 | } | |
1394 | } | |
1395 | ||
1396 | vty_out(vty, "\n"); | |
1397 | } | |
1398 | ||
1399 | static void show_zvrf_rtadv_helper(struct vty *vty, struct zebra_vrf *zvrf) | |
1400 | { | |
1401 | vty_out(vty, "VRF: %s\n", zvrf_name(zvrf)); | |
1402 | vty_out(vty, " Interfaces:\n"); | |
1403 | show_zvrf_rtadv_adv_if_helper(vty, &zvrf->rtadv.adv_if); | |
1404 | ||
1405 | vty_out(vty, " Interfaces(msec):\n"); | |
1406 | show_zvrf_rtadv_adv_if_helper(vty, &zvrf->rtadv.adv_msec_if); | |
1407 | } | |
1408 | ||
1409 | DEFPY(show_ipv6_nd_ra_if, show_ipv6_nd_ra_if_cmd, | |
1410 | "show ipv6 nd ra-interfaces [vrf<NAME$vrf_name|all$vrf_all>]", | |
1411 | SHOW_STR IP6_STR | |
1412 | "Neighbor discovery\n" | |
1413 | "Route Advertisement Interfaces\n" VRF_FULL_CMD_HELP_STR) | |
1414 | { | |
1415 | struct zebra_vrf *zvrf = NULL; | |
1416 | ||
1417 | if (!vrf_is_backend_netns() && (vrf_name || vrf_all)) { | |
1418 | vty_out(vty, | |
1419 | "%% VRF subcommand only applicable for netns-based vrfs.\n"); | |
1420 | return CMD_WARNING; | |
1421 | } | |
1422 | ||
1423 | if (vrf_all) { | |
1424 | struct vrf *vrf; | |
1425 | ||
1426 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) { | |
1427 | struct zebra_vrf *zvrf; | |
1428 | ||
1429 | zvrf = vrf->info; | |
1430 | if (!zvrf) | |
1431 | continue; | |
1432 | ||
1433 | show_zvrf_rtadv_helper(vty, zvrf); | |
1434 | } | |
1435 | ||
1436 | return CMD_SUCCESS; | |
1437 | } | |
1438 | ||
1439 | if (vrf_name) | |
1440 | zvrf = zebra_vrf_lookup_by_name(vrf_name); | |
1441 | else | |
1442 | zvrf = zebra_vrf_lookup_by_name(VRF_DEFAULT_NAME); | |
1443 | ||
1444 | if (!zvrf) { | |
1445 | vty_out(vty, "%% VRF '%s' specified does not exist\n", | |
1446 | vrf_name); | |
1447 | return CMD_WARNING; | |
1448 | } | |
1449 | ||
1450 | show_zvrf_rtadv_helper(vty, zvrf); | |
1451 | ||
1452 | return CMD_SUCCESS; | |
1453 | } | |
1454 | ||
adee8f21 DS |
1455 | DEFUN (ipv6_nd_ra_fast_retrans, |
1456 | ipv6_nd_ra_fast_retrans_cmd, | |
1457 | "ipv6 nd ra-fast-retrans", | |
1458 | "Interface IPv6 config commands\n" | |
1459 | "Neighbor discovery\n" | |
1460 | "Fast retransmit of RA packets\n") | |
1461 | { | |
1462 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1463 | struct zebra_if *zif = ifp->info; | |
1464 | ||
ef322b02 | 1465 | if (if_is_loopback_or_vrf(ifp)) { |
adee8f21 DS |
1466 | vty_out(vty, |
1467 | "Cannot configure IPv6 Router Advertisements on this interface\n"); | |
1468 | return CMD_WARNING_CONFIG_FAILED; | |
1469 | } | |
1470 | ||
1471 | zif->rtadv.UseFastRexmit = true; | |
1472 | ||
1473 | return CMD_SUCCESS; | |
1474 | } | |
1475 | ||
1476 | DEFUN (no_ipv6_nd_ra_fast_retrans, | |
1477 | no_ipv6_nd_ra_fast_retrans_cmd, | |
1478 | "no ipv6 nd ra-fast-retrans", | |
1479 | NO_STR | |
1480 | "Interface IPv6 config commands\n" | |
1481 | "Neighbor discovery\n" | |
1482 | "Fast retransmit of RA packets\n") | |
1483 | { | |
1484 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1485 | struct zebra_if *zif = ifp->info; | |
1486 | ||
ef322b02 | 1487 | if (if_is_loopback_or_vrf(ifp)) { |
adee8f21 DS |
1488 | vty_out(vty, |
1489 | "Cannot configure IPv6 Router Advertisements on this interface\n"); | |
1490 | return CMD_WARNING_CONFIG_FAILED; | |
1491 | } | |
1492 | ||
1493 | zif->rtadv.UseFastRexmit = false; | |
1494 | ||
1495 | return CMD_SUCCESS; | |
1496 | } | |
1497 | ||
fae01935 DS |
1498 | DEFPY (ipv6_nd_ra_hop_limit, |
1499 | ipv6_nd_ra_hop_limit_cmd, | |
1500 | "ipv6 nd ra-hop-limit (0-255)$hopcount", | |
1501 | "Interface IPv6 config commands\n" | |
1502 | "Neighbor discovery\n" | |
1503 | "Advertisement Hop Limit\n" | |
1504 | "Advertisement Hop Limit in hops (default:64)\n") | |
1505 | { | |
1506 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1507 | struct zebra_if *zif = ifp->info; | |
1508 | ||
ef322b02 | 1509 | if (if_is_loopback_or_vrf(ifp)) { |
fae01935 DS |
1510 | vty_out(vty, |
1511 | "Cannot configure IPv6 Router Advertisements on this interface\n"); | |
1512 | return CMD_WARNING_CONFIG_FAILED; | |
1513 | } | |
1514 | ||
1515 | zif->rtadv.AdvCurHopLimit = hopcount; | |
1516 | ||
1517 | return CMD_SUCCESS; | |
1518 | } | |
1519 | ||
1520 | DEFPY (no_ipv6_nd_ra_hop_limit, | |
1521 | no_ipv6_nd_ra_hop_limit_cmd, | |
1522 | "no ipv6 nd ra-hop-limit [(0-255)]", | |
1523 | NO_STR | |
1524 | "Interface IPv6 config commands\n" | |
1525 | "Neighbor discovery\n" | |
1526 | "Advertisement Hop Limit\n" | |
1527 | "Advertisement Hop Limit in hops\n") | |
1528 | { | |
1529 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1530 | struct zebra_if *zif = ifp->info; | |
1531 | ||
ef322b02 | 1532 | if (if_is_loopback_or_vrf(ifp)) { |
fae01935 DS |
1533 | vty_out(vty, |
1534 | "Cannot configure IPv6 Router Advertisements on this interface\n"); | |
1535 | return CMD_WARNING_CONFIG_FAILED; | |
1536 | } | |
1537 | ||
1538 | zif->rtadv.AdvCurHopLimit = RTADV_DEFAULT_HOPLIMIT; | |
1539 | ||
1540 | return CMD_SUCCESS; | |
1541 | } | |
1542 | ||
b19ac878 DS |
1543 | DEFPY (ipv6_nd_ra_retrans_interval, |
1544 | ipv6_nd_ra_retrans_interval_cmd, | |
1545 | "ipv6 nd ra-retrans-interval (0-4294967295)$interval", | |
1546 | "Interface IPv6 config commands\n" | |
1547 | "Neighbor discovery\n" | |
1548 | "Advertisement Retransmit Interval\n" | |
1549 | "Advertisement Retransmit Interval in msec\n") | |
1550 | { | |
1551 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1552 | struct zebra_if *zif = ifp->info; | |
1553 | ||
ef322b02 | 1554 | if (if_is_loopback_or_vrf(ifp)) { |
b19ac878 DS |
1555 | vty_out(vty, |
1556 | "Cannot configure IPv6 Router Advertisements on loopback interface\n"); | |
1557 | return CMD_WARNING_CONFIG_FAILED; | |
1558 | } | |
1559 | ||
1560 | zif->rtadv.AdvRetransTimer = interval; | |
1561 | ||
1562 | return CMD_SUCCESS; | |
1563 | } | |
1564 | ||
1565 | DEFPY (no_ipv6_nd_ra_retrans_interval, | |
1566 | no_ipv6_nd_ra_retrans_interval_cmd, | |
1567 | "no ipv6 nd ra-retrans-interval [(0-4294967295)]", | |
1568 | NO_STR | |
1569 | "Interface IPv6 config commands\n" | |
1570 | "Neighbor discovery\n" | |
1571 | "Advertisement Retransmit Interval\n" | |
1572 | "Advertisement Retransmit Interval in msec\n") | |
1573 | { | |
1574 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1575 | struct zebra_if *zif = ifp->info; | |
1576 | ||
ef322b02 | 1577 | if (if_is_loopback_or_vrf(ifp)) { |
b19ac878 DS |
1578 | vty_out(vty, |
1579 | "Cannot remove IPv6 Router Advertisements on loopback interface\n"); | |
1580 | return CMD_WARNING_CONFIG_FAILED; | |
1581 | } | |
1582 | ||
1583 | zif->rtadv.AdvRetransTimer = 0; | |
1584 | ||
1585 | return CMD_SUCCESS; | |
1586 | } | |
1587 | ||
718e3744 | 1588 | DEFUN (ipv6_nd_suppress_ra, |
1589 | ipv6_nd_suppress_ra_cmd, | |
1590 | "ipv6 nd suppress-ra", | |
3e31cded | 1591 | "Interface IPv6 config commands\n" |
718e3744 | 1592 | "Neighbor discovery\n" |
1593 | "Suppress Router Advertisement\n") | |
1594 | { | |
d62a17ae | 1595 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1596 | struct zebra_if *zif = ifp->info; | |
1597 | ||
ef322b02 | 1598 | if (if_is_loopback_or_vrf(ifp)) { |
d62a17ae | 1599 | vty_out(vty, |
1600 | "Cannot configure IPv6 Router Advertisements on this interface\n"); | |
1601 | return CMD_WARNING_CONFIG_FAILED; | |
1602 | } | |
1603 | ||
3ea48364 DS |
1604 | if (!CHECK_FLAG(zif->rtadv.ra_configured, BGP_RA_CONFIGURED)) |
1605 | ipv6_nd_suppress_ra_set(ifp, RA_SUPPRESS); | |
1606 | ||
1607 | UNSET_FLAG(zif->rtadv.ra_configured, VTY_RA_CONFIGURED); | |
d62a17ae | 1608 | return CMD_SUCCESS; |
718e3744 | 1609 | } |
1610 | ||
718e3744 | 1611 | DEFUN (no_ipv6_nd_suppress_ra, |
1612 | no_ipv6_nd_suppress_ra_cmd, | |
1613 | "no ipv6 nd suppress-ra", | |
1614 | NO_STR | |
3e31cded | 1615 | "Interface IPv6 config commands\n" |
718e3744 | 1616 | "Neighbor discovery\n" |
1617 | "Suppress Router Advertisement\n") | |
1618 | { | |
d62a17ae | 1619 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1620 | struct zebra_if *zif = ifp->info; | |
1621 | ||
ef322b02 | 1622 | if (if_is_loopback_or_vrf(ifp)) { |
d62a17ae | 1623 | vty_out(vty, |
1624 | "Cannot configure IPv6 Router Advertisements on this interface\n"); | |
1625 | return CMD_WARNING_CONFIG_FAILED; | |
1626 | } | |
1627 | ||
1628 | ipv6_nd_suppress_ra_set(ifp, RA_ENABLE); | |
3ea48364 | 1629 | SET_FLAG(zif->rtadv.ra_configured, VTY_RA_CONFIGURED); |
d62a17ae | 1630 | return CMD_SUCCESS; |
718e3744 | 1631 | } |
1632 | ||
7cee1bb1 | 1633 | DEFUN (ipv6_nd_ra_interval_msec, |
1634 | ipv6_nd_ra_interval_msec_cmd, | |
6147e2c6 | 1635 | "ipv6 nd ra-interval msec (70-1800000)", |
7cee1bb1 | 1636 | "Interface IPv6 config commands\n" |
1637 | "Neighbor discovery\n" | |
1638 | "Router Advertisement interval\n" | |
3a2d747c | 1639 | "Router Advertisement interval in milliseconds\n" |
7cee1bb1 | 1640 | "Router Advertisement interval in milliseconds\n") |
1641 | { | |
d62a17ae | 1642 | int idx_number = 4; |
1643 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1644 | unsigned interval; | |
1645 | struct zebra_if *zif = ifp->info; | |
df9c8c57 | 1646 | struct zebra_vrf *zvrf; |
7c2ddfb9 | 1647 | struct adv_if *adv_if; |
df9c8c57 | 1648 | |
7c2ddfb9 | 1649 | zvrf = rtadv_interface_get_zvrf(ifp); |
d62a17ae | 1650 | |
d62a17ae | 1651 | interval = strtoul(argv[idx_number]->arg, NULL, 10); |
1652 | if ((zif->rtadv.AdvDefaultLifetime != -1 | |
1653 | && interval > (unsigned)zif->rtadv.AdvDefaultLifetime * 1000)) { | |
1654 | vty_out(vty, | |
1655 | "This ra-interval would conflict with configured ra-lifetime!\n"); | |
1656 | return CMD_WARNING_CONFIG_FAILED; | |
1657 | } | |
1658 | ||
7c2ddfb9 SW |
1659 | if (zif->rtadv.MaxRtrAdvInterval % 1000) { |
1660 | adv_if = adv_msec_if_del(zvrf, ifp->name); | |
1661 | if (adv_if != NULL) | |
1662 | adv_if_free(adv_if); | |
1663 | } | |
d62a17ae | 1664 | |
1665 | if (interval % 1000) | |
7c2ddfb9 | 1666 | (void)adv_msec_if_add(zvrf, ifp->name); |
d62a17ae | 1667 | |
3ea48364 | 1668 | SET_FLAG(zif->rtadv.ra_configured, VTY_RA_INTERVAL_CONFIGURED); |
d62a17ae | 1669 | zif->rtadv.MaxRtrAdvInterval = interval; |
1670 | zif->rtadv.MinRtrAdvInterval = 0.33 * interval; | |
1671 | zif->rtadv.AdvIntervalTimer = 0; | |
1672 | ||
1673 | return CMD_SUCCESS; | |
7cee1bb1 | 1674 | } |
1675 | ||
718e3744 | 1676 | DEFUN (ipv6_nd_ra_interval, |
1677 | ipv6_nd_ra_interval_cmd, | |
6147e2c6 | 1678 | "ipv6 nd ra-interval (1-1800)", |
3e31cded | 1679 | "Interface IPv6 config commands\n" |
718e3744 | 1680 | "Neighbor discovery\n" |
1681 | "Router Advertisement interval\n" | |
1682 | "Router Advertisement interval in seconds\n") | |
1683 | { | |
d62a17ae | 1684 | int idx_number = 3; |
1685 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1686 | unsigned interval; | |
1687 | struct zebra_if *zif = ifp->info; | |
df9c8c57 | 1688 | struct zebra_vrf *zvrf; |
7c2ddfb9 | 1689 | struct adv_if *adv_if; |
df9c8c57 | 1690 | |
7c2ddfb9 | 1691 | zvrf = rtadv_interface_get_zvrf(ifp); |
d62a17ae | 1692 | |
d62a17ae | 1693 | interval = strtoul(argv[idx_number]->arg, NULL, 10); |
1694 | if ((zif->rtadv.AdvDefaultLifetime != -1 | |
1695 | && interval > (unsigned)zif->rtadv.AdvDefaultLifetime)) { | |
1696 | vty_out(vty, | |
1697 | "This ra-interval would conflict with configured ra-lifetime!\n"); | |
1698 | return CMD_WARNING_CONFIG_FAILED; | |
1699 | } | |
1700 | ||
7c2ddfb9 SW |
1701 | if (zif->rtadv.MaxRtrAdvInterval % 1000) { |
1702 | adv_if = adv_msec_if_del(zvrf, ifp->name); | |
1703 | if (adv_if != NULL) | |
1704 | adv_if_free(adv_if); | |
1705 | } | |
d62a17ae | 1706 | |
1707 | /* convert to milliseconds */ | |
1708 | interval = interval * 1000; | |
1709 | ||
3ea48364 | 1710 | SET_FLAG(zif->rtadv.ra_configured, VTY_RA_INTERVAL_CONFIGURED); |
d62a17ae | 1711 | zif->rtadv.MaxRtrAdvInterval = interval; |
1712 | zif->rtadv.MinRtrAdvInterval = 0.33 * interval; | |
1713 | zif->rtadv.AdvIntervalTimer = 0; | |
1714 | ||
1715 | return CMD_SUCCESS; | |
718e3744 | 1716 | } |
1717 | ||
1718 | DEFUN (no_ipv6_nd_ra_interval, | |
1719 | no_ipv6_nd_ra_interval_cmd, | |
34ccea1e | 1720 | "no ipv6 nd ra-interval [<(1-1800)|msec (1-1800000)>]", |
718e3744 | 1721 | NO_STR |
3e31cded | 1722 | "Interface IPv6 config commands\n" |
718e3744 | 1723 | "Neighbor discovery\n" |
34ccea1e QY |
1724 | "Router Advertisement interval\n" |
1725 | "Router Advertisement interval in seconds\n" | |
1726 | "Specify millisecond router advertisement interval\n" | |
1727 | "Router Advertisement interval in milliseconds\n") | |
718e3744 | 1728 | { |
d62a17ae | 1729 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1730 | struct zebra_if *zif = ifp->info; | |
df9c8c57 | 1731 | struct zebra_vrf *zvrf = NULL; |
7c2ddfb9 | 1732 | struct adv_if *adv_if; |
df9c8c57 | 1733 | |
7c2ddfb9 | 1734 | zvrf = rtadv_interface_get_zvrf(ifp); |
d62a17ae | 1735 | |
7c2ddfb9 SW |
1736 | if (zif->rtadv.MaxRtrAdvInterval % 1000) { |
1737 | adv_if = adv_msec_if_del(zvrf, ifp->name); | |
1738 | if (adv_if != NULL) | |
1739 | adv_if_free(adv_if); | |
1740 | } | |
d62a17ae | 1741 | |
3ea48364 DS |
1742 | UNSET_FLAG(zif->rtadv.ra_configured, VTY_RA_INTERVAL_CONFIGURED); |
1743 | ||
1744 | if (CHECK_FLAG(zif->rtadv.ra_configured, BGP_RA_CONFIGURED)) | |
1745 | zif->rtadv.MaxRtrAdvInterval = 10000; | |
1746 | else | |
1747 | zif->rtadv.MaxRtrAdvInterval = RTADV_MAX_RTR_ADV_INTERVAL; | |
1748 | ||
d62a17ae | 1749 | zif->rtadv.AdvIntervalTimer = zif->rtadv.MaxRtrAdvInterval; |
3ea48364 | 1750 | zif->rtadv.MinRtrAdvInterval = RTADV_MIN_RTR_ADV_INTERVAL; |
d62a17ae | 1751 | |
1752 | return CMD_SUCCESS; | |
718e3744 | 1753 | } |
1754 | ||
1755 | DEFUN (ipv6_nd_ra_lifetime, | |
1756 | ipv6_nd_ra_lifetime_cmd, | |
6147e2c6 | 1757 | "ipv6 nd ra-lifetime (0-9000)", |
3e31cded | 1758 | "Interface IPv6 config commands\n" |
718e3744 | 1759 | "Neighbor discovery\n" |
1760 | "Router lifetime\n" | |
4afa50b3 | 1761 | "Router lifetime in seconds (0 stands for a non-default gw)\n") |
718e3744 | 1762 | { |
d62a17ae | 1763 | int idx_number = 3; |
1764 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1765 | struct zebra_if *zif = ifp->info; | |
1766 | int lifetime; | |
1767 | ||
1768 | lifetime = strtoul(argv[idx_number]->arg, NULL, 10); | |
1769 | ||
1770 | /* The value to be placed in the Router Lifetime field | |
1771 | * of Router Advertisements sent from the interface, | |
1772 | * in seconds. MUST be either zero or between | |
1773 | * MaxRtrAdvInterval and 9000 seconds. -- RFC4861, 6.2.1 */ | |
1774 | if ((lifetime != 0 && lifetime * 1000 < zif->rtadv.MaxRtrAdvInterval)) { | |
1775 | vty_out(vty, | |
1776 | "This ra-lifetime would conflict with configured ra-interval\n"); | |
1777 | return CMD_WARNING_CONFIG_FAILED; | |
1778 | } | |
1779 | ||
1780 | zif->rtadv.AdvDefaultLifetime = lifetime; | |
1781 | ||
1782 | return CMD_SUCCESS; | |
718e3744 | 1783 | } |
1784 | ||
1785 | DEFUN (no_ipv6_nd_ra_lifetime, | |
1786 | no_ipv6_nd_ra_lifetime_cmd, | |
34ccea1e | 1787 | "no ipv6 nd ra-lifetime [(0-9000)]", |
718e3744 | 1788 | NO_STR |
3e31cded | 1789 | "Interface IPv6 config commands\n" |
718e3744 | 1790 | "Neighbor discovery\n" |
34ccea1e QY |
1791 | "Router lifetime\n" |
1792 | "Router lifetime in seconds (0 stands for a non-default gw)\n") | |
718e3744 | 1793 | { |
d62a17ae | 1794 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1795 | struct zebra_if *zif = ifp->info; | |
718e3744 | 1796 | |
d62a17ae | 1797 | zif->rtadv.AdvDefaultLifetime = -1; |
718e3744 | 1798 | |
d62a17ae | 1799 | return CMD_SUCCESS; |
718e3744 | 1800 | } |
1801 | ||
1802 | DEFUN (ipv6_nd_reachable_time, | |
1803 | ipv6_nd_reachable_time_cmd, | |
6147e2c6 | 1804 | "ipv6 nd reachable-time (1-3600000)", |
3e31cded | 1805 | "Interface IPv6 config commands\n" |
718e3744 | 1806 | "Neighbor discovery\n" |
1807 | "Reachable time\n" | |
1808 | "Reachable time in milliseconds\n") | |
1809 | { | |
d62a17ae | 1810 | int idx_number = 3; |
1811 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1812 | struct zebra_if *zif = ifp->info; | |
1813 | zif->rtadv.AdvReachableTime = strtoul(argv[idx_number]->arg, NULL, 10); | |
1814 | return CMD_SUCCESS; | |
718e3744 | 1815 | } |
1816 | ||
1817 | DEFUN (no_ipv6_nd_reachable_time, | |
1818 | no_ipv6_nd_reachable_time_cmd, | |
34ccea1e | 1819 | "no ipv6 nd reachable-time [(1-3600000)]", |
718e3744 | 1820 | NO_STR |
3e31cded | 1821 | "Interface IPv6 config commands\n" |
718e3744 | 1822 | "Neighbor discovery\n" |
34ccea1e QY |
1823 | "Reachable time\n" |
1824 | "Reachable time in milliseconds\n") | |
718e3744 | 1825 | { |
d62a17ae | 1826 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1827 | struct zebra_if *zif = ifp->info; | |
718e3744 | 1828 | |
d62a17ae | 1829 | zif->rtadv.AdvReachableTime = 0; |
718e3744 | 1830 | |
d62a17ae | 1831 | return CMD_SUCCESS; |
718e3744 | 1832 | } |
1833 | ||
7cee1bb1 | 1834 | DEFUN (ipv6_nd_homeagent_preference, |
1835 | ipv6_nd_homeagent_preference_cmd, | |
6147e2c6 | 1836 | "ipv6 nd home-agent-preference (0-65535)", |
7cee1bb1 | 1837 | "Interface IPv6 config commands\n" |
1838 | "Neighbor discovery\n" | |
1839 | "Home Agent preference\n" | |
4afa50b3 | 1840 | "preference value (default is 0, least preferred)\n") |
7cee1bb1 | 1841 | { |
d62a17ae | 1842 | int idx_number = 3; |
1843 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1844 | struct zebra_if *zif = ifp->info; | |
1845 | zif->rtadv.HomeAgentPreference = | |
1846 | strtoul(argv[idx_number]->arg, NULL, 10); | |
1847 | return CMD_SUCCESS; | |
7cee1bb1 | 1848 | } |
1849 | ||
1850 | DEFUN (no_ipv6_nd_homeagent_preference, | |
1851 | no_ipv6_nd_homeagent_preference_cmd, | |
34ccea1e | 1852 | "no ipv6 nd home-agent-preference [(0-65535)]", |
7cee1bb1 | 1853 | NO_STR |
1854 | "Interface IPv6 config commands\n" | |
1855 | "Neighbor discovery\n" | |
34ccea1e QY |
1856 | "Home Agent preference\n" |
1857 | "preference value (default is 0, least preferred)\n") | |
7cee1bb1 | 1858 | { |
d62a17ae | 1859 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1860 | struct zebra_if *zif = ifp->info; | |
7cee1bb1 | 1861 | |
d62a17ae | 1862 | zif->rtadv.HomeAgentPreference = 0; |
7cee1bb1 | 1863 | |
d62a17ae | 1864 | return CMD_SUCCESS; |
7cee1bb1 | 1865 | } |
1866 | ||
1867 | DEFUN (ipv6_nd_homeagent_lifetime, | |
1868 | ipv6_nd_homeagent_lifetime_cmd, | |
6147e2c6 | 1869 | "ipv6 nd home-agent-lifetime (0-65520)", |
7cee1bb1 | 1870 | "Interface IPv6 config commands\n" |
1871 | "Neighbor discovery\n" | |
1872 | "Home Agent lifetime\n" | |
4afa50b3 | 1873 | "Home Agent lifetime in seconds (0 to track ra-lifetime)\n") |
7cee1bb1 | 1874 | { |
d62a17ae | 1875 | int idx_number = 3; |
1876 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
1877 | struct zebra_if *zif = ifp->info; | |
1878 | zif->rtadv.HomeAgentLifetime = strtoul(argv[idx_number]->arg, NULL, 10); | |
1879 | return CMD_SUCCESS; | |
7cee1bb1 | 1880 | } |
1881 | ||
1882 | DEFUN (no_ipv6_nd_homeagent_lifetime, | |
1883 | no_ipv6_nd_homeagent_lifetime_cmd, | |
34ccea1e | 1884 | "no ipv6 nd home-agent-lifetime [(0-65520)]", |
7cee1bb1 | 1885 | NO_STR |
1886 | "Interface IPv6 config commands\n" | |
1887 | "Neighbor discovery\n" | |
34ccea1e QY |
1888 | "Home Agent lifetime\n" |
1889 | "Home Agent lifetime in seconds (0 to track ra-lifetime)\n") | |
7cee1bb1 | 1890 | { |
d62a17ae | 1891 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1892 | struct zebra_if *zif = ifp->info; | |
7cee1bb1 | 1893 | |
d62a17ae | 1894 | zif->rtadv.HomeAgentLifetime = -1; |
7cee1bb1 | 1895 | |
d62a17ae | 1896 | return CMD_SUCCESS; |
7cee1bb1 | 1897 | } |
1898 | ||
718e3744 | 1899 | DEFUN (ipv6_nd_managed_config_flag, |
1900 | ipv6_nd_managed_config_flag_cmd, | |
1901 | "ipv6 nd managed-config-flag", | |
3e31cded | 1902 | "Interface IPv6 config commands\n" |
718e3744 | 1903 | "Neighbor discovery\n" |
1904 | "Managed address configuration flag\n") | |
1905 | { | |
d62a17ae | 1906 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1907 | struct zebra_if *zif = ifp->info; | |
718e3744 | 1908 | |
d62a17ae | 1909 | zif->rtadv.AdvManagedFlag = 1; |
718e3744 | 1910 | |
d62a17ae | 1911 | return CMD_SUCCESS; |
718e3744 | 1912 | } |
1913 | ||
1914 | DEFUN (no_ipv6_nd_managed_config_flag, | |
1915 | no_ipv6_nd_managed_config_flag_cmd, | |
1916 | "no ipv6 nd managed-config-flag", | |
1917 | NO_STR | |
3e31cded | 1918 | "Interface IPv6 config commands\n" |
718e3744 | 1919 | "Neighbor discovery\n" |
1920 | "Managed address configuration flag\n") | |
1921 | { | |
d62a17ae | 1922 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1923 | struct zebra_if *zif = ifp->info; | |
718e3744 | 1924 | |
d62a17ae | 1925 | zif->rtadv.AdvManagedFlag = 0; |
718e3744 | 1926 | |
d62a17ae | 1927 | return CMD_SUCCESS; |
718e3744 | 1928 | } |
1929 | ||
7cee1bb1 | 1930 | DEFUN (ipv6_nd_homeagent_config_flag, |
1931 | ipv6_nd_homeagent_config_flag_cmd, | |
1932 | "ipv6 nd home-agent-config-flag", | |
1933 | "Interface IPv6 config commands\n" | |
1934 | "Neighbor discovery\n" | |
1935 | "Home Agent configuration flag\n") | |
1936 | { | |
d62a17ae | 1937 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1938 | struct zebra_if *zif = ifp->info; | |
7cee1bb1 | 1939 | |
d62a17ae | 1940 | zif->rtadv.AdvHomeAgentFlag = 1; |
7cee1bb1 | 1941 | |
d62a17ae | 1942 | return CMD_SUCCESS; |
7cee1bb1 | 1943 | } |
1944 | ||
1945 | DEFUN (no_ipv6_nd_homeagent_config_flag, | |
1946 | no_ipv6_nd_homeagent_config_flag_cmd, | |
1947 | "no ipv6 nd home-agent-config-flag", | |
1948 | NO_STR | |
1949 | "Interface IPv6 config commands\n" | |
1950 | "Neighbor discovery\n" | |
1951 | "Home Agent configuration flag\n") | |
1952 | { | |
d62a17ae | 1953 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1954 | struct zebra_if *zif = ifp->info; | |
7cee1bb1 | 1955 | |
d62a17ae | 1956 | zif->rtadv.AdvHomeAgentFlag = 0; |
7cee1bb1 | 1957 | |
d62a17ae | 1958 | return CMD_SUCCESS; |
7cee1bb1 | 1959 | } |
1960 | ||
1961 | DEFUN (ipv6_nd_adv_interval_config_option, | |
1962 | ipv6_nd_adv_interval_config_option_cmd, | |
1963 | "ipv6 nd adv-interval-option", | |
1964 | "Interface IPv6 config commands\n" | |
1965 | "Neighbor discovery\n" | |
1966 | "Advertisement Interval Option\n") | |
1967 | { | |
d62a17ae | 1968 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1969 | struct zebra_if *zif = ifp->info; | |
7cee1bb1 | 1970 | |
d62a17ae | 1971 | zif->rtadv.AdvIntervalOption = 1; |
7cee1bb1 | 1972 | |
d62a17ae | 1973 | return CMD_SUCCESS; |
7cee1bb1 | 1974 | } |
1975 | ||
1976 | DEFUN (no_ipv6_nd_adv_interval_config_option, | |
1977 | no_ipv6_nd_adv_interval_config_option_cmd, | |
1978 | "no ipv6 nd adv-interval-option", | |
1979 | NO_STR | |
1980 | "Interface IPv6 config commands\n" | |
1981 | "Neighbor discovery\n" | |
1982 | "Advertisement Interval Option\n") | |
1983 | { | |
d62a17ae | 1984 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1985 | struct zebra_if *zif = ifp->info; | |
7cee1bb1 | 1986 | |
d62a17ae | 1987 | zif->rtadv.AdvIntervalOption = 0; |
7cee1bb1 | 1988 | |
d62a17ae | 1989 | return CMD_SUCCESS; |
7cee1bb1 | 1990 | } |
1991 | ||
718e3744 | 1992 | DEFUN (ipv6_nd_other_config_flag, |
1993 | ipv6_nd_other_config_flag_cmd, | |
1994 | "ipv6 nd other-config-flag", | |
3e31cded | 1995 | "Interface IPv6 config commands\n" |
718e3744 | 1996 | "Neighbor discovery\n" |
1997 | "Other statefull configuration flag\n") | |
1998 | { | |
d62a17ae | 1999 | VTY_DECLVAR_CONTEXT(interface, ifp); |
2000 | struct zebra_if *zif = ifp->info; | |
718e3744 | 2001 | |
d62a17ae | 2002 | zif->rtadv.AdvOtherConfigFlag = 1; |
718e3744 | 2003 | |
d62a17ae | 2004 | return CMD_SUCCESS; |
718e3744 | 2005 | } |
2006 | ||
2007 | DEFUN (no_ipv6_nd_other_config_flag, | |
2008 | no_ipv6_nd_other_config_flag_cmd, | |
2009 | "no ipv6 nd other-config-flag", | |
2010 | NO_STR | |
3e31cded | 2011 | "Interface IPv6 config commands\n" |
718e3744 | 2012 | "Neighbor discovery\n" |
2013 | "Other statefull configuration flag\n") | |
2014 | { | |
d62a17ae | 2015 | VTY_DECLVAR_CONTEXT(interface, ifp); |
2016 | struct zebra_if *zif = ifp->info; | |
718e3744 | 2017 | |
d62a17ae | 2018 | zif->rtadv.AdvOtherConfigFlag = 0; |
718e3744 | 2019 | |
d62a17ae | 2020 | return CMD_SUCCESS; |
718e3744 | 2021 | } |
2022 | ||
3e31cded | 2023 | DEFUN (ipv6_nd_prefix, |
2024 | ipv6_nd_prefix_cmd, | |
34ccea1e | 2025 | "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 | 2026 | "Interface IPv6 config commands\n" |
718e3744 | 2027 | "Neighbor discovery\n" |
2028 | "Prefix information\n" | |
2029 | "IPv6 prefix\n" | |
2030 | "Valid lifetime in seconds\n" | |
3e31cded | 2031 | "Infinite valid lifetime\n" |
718e3744 | 2032 | "Preferred lifetime in seconds\n" |
3e31cded | 2033 | "Infinite preferred lifetime\n" |
34ccea1e | 2034 | "Set Router Address flag\n" |
3e31cded | 2035 | "Do not use prefix for onlink determination\n" |
7cee1bb1 | 2036 | "Do not use prefix for autoconfiguration\n" |
34ccea1e QY |
2037 | "Do not use prefix for autoconfiguration\n" |
2038 | "Do not use prefix for onlink determination\n") | |
718e3744 | 2039 | { |
d62a17ae | 2040 | /* prelude */ |
2041 | char *prefix = argv[3]->arg; | |
9d303b37 DL |
2042 | int lifetimes = (argc > 4) && (argv[4]->type == RANGE_TKN |
2043 | || strmatch(argv[4]->text, "infinite")); | |
d62a17ae | 2044 | int routeropts = lifetimes ? argc > 6 : argc > 4; |
2045 | ||
2046 | int idx_routeropts = routeropts ? (lifetimes ? 6 : 4) : 0; | |
2047 | ||
2048 | char *lifetime = NULL, *preflifetime = NULL; | |
2049 | int routeraddr = 0, offlink = 0, noautoconf = 0; | |
2050 | if (lifetimes) { | |
2051 | lifetime = argv[4]->type == RANGE_TKN ? argv[4]->arg | |
2052 | : argv[4]->text; | |
2053 | preflifetime = argv[5]->type == RANGE_TKN ? argv[5]->arg | |
2054 | : argv[5]->text; | |
2055 | } | |
2056 | if (routeropts) { | |
2057 | routeraddr = | |
2058 | strmatch(argv[idx_routeropts]->text, "router-address"); | |
2059 | if (!routeraddr) { | |
2060 | offlink = (argc > idx_routeropts + 1 | |
2061 | || strmatch(argv[idx_routeropts]->text, | |
2062 | "off-link")); | |
2063 | noautoconf = (argc > idx_routeropts + 1 | |
2064 | || strmatch(argv[idx_routeropts]->text, | |
2065 | "no-autoconfig")); | |
2066 | } | |
2067 | } | |
2068 | ||
2069 | /* business */ | |
2070 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
2071 | struct zebra_if *zebra_if = ifp->info; | |
2072 | int ret; | |
2073 | struct rtadv_prefix rp; | |
2074 | ||
2075 | ret = str2prefix_ipv6(prefix, &rp.prefix); | |
2076 | if (!ret) { | |
2077 | vty_out(vty, "Malformed IPv6 prefix\n"); | |
2078 | return CMD_WARNING_CONFIG_FAILED; | |
2079 | } | |
2080 | apply_mask_ipv6(&rp.prefix); /* RFC4861 4.6.2 */ | |
2081 | rp.AdvOnLinkFlag = !offlink; | |
2082 | rp.AdvAutonomousFlag = !noautoconf; | |
2083 | rp.AdvRouterAddressFlag = routeraddr; | |
2084 | rp.AdvValidLifetime = RTADV_VALID_LIFETIME; | |
2085 | rp.AdvPreferredLifetime = RTADV_PREFERRED_LIFETIME; | |
2a855763 | 2086 | rp.AdvPrefixCreate = PREFIX_SRC_MANUAL; |
d62a17ae | 2087 | |
2088 | if (lifetimes) { | |
2089 | rp.AdvValidLifetime = strmatch(lifetime, "infinite") | |
2090 | ? UINT32_MAX | |
2091 | : strtoll(lifetime, NULL, 10); | |
2092 | rp.AdvPreferredLifetime = | |
2093 | strmatch(preflifetime, "infinite") | |
2094 | ? UINT32_MAX | |
2095 | : strtoll(preflifetime, NULL, 10); | |
2096 | if (rp.AdvPreferredLifetime > rp.AdvValidLifetime) { | |
2097 | vty_out(vty, "Invalid preferred lifetime\n"); | |
2098 | return CMD_WARNING_CONFIG_FAILED; | |
2099 | } | |
2100 | } | |
2101 | ||
2102 | rtadv_prefix_set(zebra_if, &rp); | |
2103 | ||
2104 | return CMD_SUCCESS; | |
718e3744 | 2105 | } |
2106 | ||
3e31cded | 2107 | DEFUN (no_ipv6_nd_prefix, |
2108 | no_ipv6_nd_prefix_cmd, | |
34ccea1e QY |
2109 | "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]>]", |
2110 | NO_STR | |
3e31cded | 2111 | "Interface IPv6 config commands\n" |
718e3744 | 2112 | "Neighbor discovery\n" |
2113 | "Prefix information\n" | |
34ccea1e QY |
2114 | "IPv6 prefix\n" |
2115 | "Valid lifetime in seconds\n" | |
2116 | "Infinite valid lifetime\n" | |
2117 | "Preferred lifetime in seconds\n" | |
2118 | "Infinite preferred lifetime\n" | |
2119 | "Set Router Address flag\n" | |
2120 | "Do not use prefix for onlink determination\n" | |
2121 | "Do not use prefix for autoconfiguration\n" | |
2122 | "Do not use prefix for autoconfiguration\n" | |
2123 | "Do not use prefix for onlink determination\n") | |
718e3744 | 2124 | { |
d62a17ae | 2125 | VTY_DECLVAR_CONTEXT(interface, ifp); |
2126 | struct zebra_if *zebra_if = ifp->info; | |
2127 | int ret; | |
2128 | struct rtadv_prefix rp; | |
2129 | char *prefix = argv[4]->arg; | |
2130 | ||
2131 | ret = str2prefix_ipv6(prefix, &rp.prefix); | |
2132 | if (!ret) { | |
2133 | vty_out(vty, "Malformed IPv6 prefix\n"); | |
2134 | return CMD_WARNING_CONFIG_FAILED; | |
2135 | } | |
2136 | apply_mask_ipv6(&rp.prefix); /* RFC4861 4.6.2 */ | |
2a855763 | 2137 | rp.AdvPrefixCreate = PREFIX_SRC_MANUAL; |
d62a17ae | 2138 | |
2139 | ret = rtadv_prefix_reset(zebra_if, &rp); | |
2140 | if (!ret) { | |
2141 | vty_out(vty, "Non-existant IPv6 prefix\n"); | |
2142 | return CMD_WARNING_CONFIG_FAILED; | |
2143 | } | |
2144 | ||
2145 | return CMD_SUCCESS; | |
718e3744 | 2146 | } |
b60668d0 CC |
2147 | |
2148 | DEFUN (ipv6_nd_router_preference, | |
2149 | ipv6_nd_router_preference_cmd, | |
6147e2c6 | 2150 | "ipv6 nd router-preference <high|medium|low>", |
b60668d0 CC |
2151 | "Interface IPv6 config commands\n" |
2152 | "Neighbor discovery\n" | |
2153 | "Default router preference\n" | |
2154 | "High default router preference\n" | |
58f1b7cc DS |
2155 | "Medium default router preference (default)\n" |
2156 | "Low default router preference\n") | |
b60668d0 | 2157 | { |
d62a17ae | 2158 | int idx_high_medium_low = 3; |
2159 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
2160 | struct zebra_if *zif = ifp->info; | |
2161 | int i = 0; | |
2162 | ||
2163 | while (0 != rtadv_pref_strs[i]) { | |
2164 | if (strncmp(argv[idx_high_medium_low]->arg, rtadv_pref_strs[i], | |
2165 | 1) | |
2166 | == 0) { | |
2167 | zif->rtadv.DefaultPreference = i; | |
2168 | return CMD_SUCCESS; | |
2169 | } | |
2170 | i++; | |
b60668d0 | 2171 | } |
b60668d0 | 2172 | |
d62a17ae | 2173 | return CMD_ERR_NO_MATCH; |
b60668d0 CC |
2174 | } |
2175 | ||
2176 | DEFUN (no_ipv6_nd_router_preference, | |
2177 | no_ipv6_nd_router_preference_cmd, | |
34ccea1e | 2178 | "no ipv6 nd router-preference [<high|medium|low>]", |
b60668d0 CC |
2179 | NO_STR |
2180 | "Interface IPv6 config commands\n" | |
2181 | "Neighbor discovery\n" | |
34ccea1e QY |
2182 | "Default router preference\n" |
2183 | "High default router preference\n" | |
2184 | "Medium default router preference (default)\n" | |
2185 | "Low default router preference\n") | |
b60668d0 | 2186 | { |
d62a17ae | 2187 | VTY_DECLVAR_CONTEXT(interface, ifp); |
2188 | struct zebra_if *zif = ifp->info; | |
b60668d0 | 2189 | |
d62a17ae | 2190 | zif->rtadv.DefaultPreference = |
2191 | RTADV_PREF_MEDIUM; /* Default per RFC4191. */ | |
b60668d0 | 2192 | |
d62a17ae | 2193 | return CMD_SUCCESS; |
b60668d0 CC |
2194 | } |
2195 | ||
6ae93c05 DO |
2196 | DEFUN (ipv6_nd_mtu, |
2197 | ipv6_nd_mtu_cmd, | |
6147e2c6 | 2198 | "ipv6 nd mtu (1-65535)", |
6ae93c05 DO |
2199 | "Interface IPv6 config commands\n" |
2200 | "Neighbor discovery\n" | |
2201 | "Advertised MTU\n" | |
2202 | "MTU in bytes\n") | |
2203 | { | |
d62a17ae | 2204 | int idx_number = 3; |
2205 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
2206 | struct zebra_if *zif = ifp->info; | |
2207 | zif->rtadv.AdvLinkMTU = strtoul(argv[idx_number]->arg, NULL, 10); | |
2208 | return CMD_SUCCESS; | |
6ae93c05 DO |
2209 | } |
2210 | ||
2211 | DEFUN (no_ipv6_nd_mtu, | |
2212 | no_ipv6_nd_mtu_cmd, | |
34ccea1e | 2213 | "no ipv6 nd mtu [(1-65535)]", |
6ae93c05 DO |
2214 | NO_STR |
2215 | "Interface IPv6 config commands\n" | |
2216 | "Neighbor discovery\n" | |
34ccea1e QY |
2217 | "Advertised MTU\n" |
2218 | "MTU in bytes\n") | |
6ae93c05 | 2219 | { |
d62a17ae | 2220 | VTY_DECLVAR_CONTEXT(interface, ifp); |
2221 | struct zebra_if *zif = ifp->info; | |
2222 | zif->rtadv.AdvLinkMTU = 0; | |
2223 | return CMD_SUCCESS; | |
6ae93c05 DO |
2224 | } |
2225 | ||
3eb4fbb0 LS |
2226 | static struct rtadv_rdnss *rtadv_rdnss_new(void) |
2227 | { | |
2228 | return XCALLOC(MTYPE_RTADV_RDNSS, sizeof(struct rtadv_rdnss)); | |
2229 | } | |
2230 | ||
2231 | static void rtadv_rdnss_free(struct rtadv_rdnss *rdnss) | |
2232 | { | |
2233 | XFREE(MTYPE_RTADV_RDNSS, rdnss); | |
2234 | } | |
2235 | ||
2236 | static struct rtadv_rdnss *rtadv_rdnss_lookup(struct list *list, | |
2237 | struct rtadv_rdnss *rdnss) | |
2238 | { | |
2239 | struct listnode *node; | |
2240 | struct rtadv_rdnss *p; | |
2241 | ||
2242 | for (ALL_LIST_ELEMENTS_RO(list, node, p)) | |
2243 | if (IPV6_ADDR_SAME(&p->addr, &rdnss->addr)) | |
2244 | return p; | |
2245 | return NULL; | |
2246 | } | |
2247 | ||
2248 | static struct rtadv_rdnss *rtadv_rdnss_get(struct list *list, | |
2249 | struct rtadv_rdnss *rdnss) | |
2250 | { | |
2251 | struct rtadv_rdnss *p; | |
2252 | ||
2253 | p = rtadv_rdnss_lookup(list, rdnss); | |
2254 | if (p) | |
2255 | return p; | |
2256 | ||
2257 | p = rtadv_rdnss_new(); | |
2258 | memcpy(p, rdnss, sizeof(struct rtadv_rdnss)); | |
2259 | listnode_add(list, p); | |
2260 | ||
2261 | return p; | |
2262 | } | |
2263 | ||
2264 | static void rtadv_rdnss_set(struct zebra_if *zif, struct rtadv_rdnss *rdnss) | |
2265 | { | |
2266 | struct rtadv_rdnss *p; | |
2267 | ||
2268 | p = rtadv_rdnss_get(zif->rtadv.AdvRDNSSList, rdnss); | |
2269 | p->lifetime = rdnss->lifetime; | |
2270 | p->lifetime_set = rdnss->lifetime_set; | |
2271 | } | |
2272 | ||
2273 | static int rtadv_rdnss_reset(struct zebra_if *zif, struct rtadv_rdnss *rdnss) | |
2274 | { | |
2275 | struct rtadv_rdnss *p; | |
2276 | ||
2277 | p = rtadv_rdnss_lookup(zif->rtadv.AdvRDNSSList, rdnss); | |
2278 | if (p) { | |
2279 | listnode_delete(zif->rtadv.AdvRDNSSList, p); | |
2280 | rtadv_rdnss_free(p); | |
2281 | return 1; | |
2282 | } | |
2283 | ||
2284 | return 0; | |
2285 | } | |
2286 | ||
2287 | static struct rtadv_dnssl *rtadv_dnssl_new(void) | |
2288 | { | |
2289 | return XCALLOC(MTYPE_RTADV_DNSSL, sizeof(struct rtadv_dnssl)); | |
2290 | } | |
2291 | ||
2292 | static void rtadv_dnssl_free(struct rtadv_dnssl *dnssl) | |
2293 | { | |
2294 | XFREE(MTYPE_RTADV_DNSSL, dnssl); | |
2295 | } | |
2296 | ||
2297 | static struct rtadv_dnssl *rtadv_dnssl_lookup(struct list *list, | |
2298 | struct rtadv_dnssl *dnssl) | |
2299 | { | |
2300 | struct listnode *node; | |
2301 | struct rtadv_dnssl *p; | |
2302 | ||
2303 | for (ALL_LIST_ELEMENTS_RO(list, node, p)) | |
2304 | if (!strcasecmp(p->name, dnssl->name)) | |
2305 | return p; | |
2306 | return NULL; | |
2307 | } | |
2308 | ||
2309 | static struct rtadv_dnssl *rtadv_dnssl_get(struct list *list, | |
2310 | struct rtadv_dnssl *dnssl) | |
2311 | { | |
2312 | struct rtadv_dnssl *p; | |
2313 | ||
2314 | p = rtadv_dnssl_lookup(list, dnssl); | |
2315 | if (p) | |
2316 | return p; | |
2317 | ||
2318 | p = rtadv_dnssl_new(); | |
2319 | memcpy(p, dnssl, sizeof(struct rtadv_dnssl)); | |
2320 | listnode_add(list, p); | |
2321 | ||
2322 | return p; | |
2323 | } | |
2324 | ||
2325 | static void rtadv_dnssl_set(struct zebra_if *zif, struct rtadv_dnssl *dnssl) | |
2326 | { | |
2327 | struct rtadv_dnssl *p; | |
2328 | ||
2329 | p = rtadv_dnssl_get(zif->rtadv.AdvDNSSLList, dnssl); | |
2330 | memcpy(p, dnssl, sizeof(struct rtadv_dnssl)); | |
2331 | } | |
2332 | ||
2333 | static int rtadv_dnssl_reset(struct zebra_if *zif, struct rtadv_dnssl *dnssl) | |
2334 | { | |
2335 | struct rtadv_dnssl *p; | |
2336 | ||
2337 | p = rtadv_dnssl_lookup(zif->rtadv.AdvDNSSLList, dnssl); | |
2338 | if (p) { | |
2339 | listnode_delete(zif->rtadv.AdvDNSSLList, p); | |
2340 | rtadv_dnssl_free(p); | |
2341 | return 1; | |
2342 | } | |
2343 | ||
2344 | return 0; | |
2345 | } | |
2346 | ||
2347 | /* | |
2348 | * Convert dotted domain name (with or without trailing root zone dot) to | |
2349 | * sequence of length-prefixed labels, as described in [RFC1035 3.1]. Write up | |
2350 | * to strlen(in) + 2 octets to out. | |
2351 | * | |
2352 | * Returns the number of octets written to out or -1 if in does not constitute | |
2353 | * a valid domain name. | |
2354 | */ | |
2355 | static int rtadv_dnssl_encode(uint8_t *out, const char *in) | |
2356 | { | |
2357 | const char *label_start, *label_end; | |
2358 | size_t outp; | |
2359 | ||
2360 | outp = 0; | |
2361 | label_start = in; | |
2362 | ||
2363 | while (*label_start) { | |
2364 | size_t label_len; | |
2365 | ||
2366 | label_end = strchr(label_start, '.'); | |
2367 | if (label_end == NULL) | |
2368 | label_end = label_start + strlen(label_start); | |
2369 | ||
2370 | label_len = label_end - label_start; | |
2371 | if (label_len >= 64) | |
2372 | return -1; /* labels must be 63 octets or less */ | |
2373 | ||
2374 | out[outp++] = (uint8_t)label_len; | |
2375 | memcpy(out + outp, label_start, label_len); | |
2376 | outp += label_len; | |
2377 | label_start += label_len; | |
2378 | if (*label_start == '.') | |
2379 | label_start++; | |
2380 | } | |
2381 | ||
2382 | out[outp++] = '\0'; | |
2383 | return outp; | |
2384 | } | |
2385 | ||
2386 | DEFUN(ipv6_nd_rdnss, | |
2387 | ipv6_nd_rdnss_cmd, | |
2388 | "ipv6 nd rdnss X:X::X:X [<(0-4294967295)|infinite>]", | |
2389 | "Interface IPv6 config commands\n" | |
2390 | "Neighbor discovery\n" | |
2391 | "Recursive DNS server information\n" | |
2392 | "IPv6 address\n" | |
2393 | "Valid lifetime in seconds\n" | |
2394 | "Infinite valid lifetime\n") | |
2395 | { | |
2396 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
2397 | struct zebra_if *zif = ifp->info; | |
844e9180 | 2398 | struct rtadv_rdnss rdnss = {}; |
3eb4fbb0 LS |
2399 | |
2400 | if (inet_pton(AF_INET6, argv[3]->arg, &rdnss.addr) != 1) { | |
2401 | vty_out(vty, "Malformed IPv6 address\n"); | |
2402 | return CMD_WARNING_CONFIG_FAILED; | |
2403 | } | |
2404 | if (argc > 4) { | |
2405 | char *lifetime = argv[4]->type == RANGE_TKN ? argv[4]->arg | |
2406 | : argv[4]->text; | |
2407 | rdnss.lifetime = strmatch(lifetime, "infinite") | |
2408 | ? UINT32_MAX | |
2409 | : strtoll(lifetime, NULL, 10); | |
2410 | rdnss.lifetime_set = 1; | |
2411 | } | |
2412 | ||
2413 | rtadv_rdnss_set(zif, &rdnss); | |
2414 | ||
2415 | return CMD_SUCCESS; | |
2416 | } | |
2417 | ||
2418 | DEFUN(no_ipv6_nd_rdnss, | |
2419 | no_ipv6_nd_rdnss_cmd, | |
2420 | "no ipv6 nd rdnss X:X::X:X [<(0-4294967295)|infinite>]", | |
2421 | NO_STR | |
2422 | "Interface IPv6 config commands\n" | |
2423 | "Neighbor discovery\n" | |
2424 | "Recursive DNS server information\n" | |
2425 | "IPv6 address\n" | |
2426 | "Valid lifetime in seconds\n" | |
2427 | "Infinite valid lifetime\n") | |
2428 | { | |
2429 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
2430 | struct zebra_if *zif = ifp->info; | |
844e9180 | 2431 | struct rtadv_rdnss rdnss = {}; |
3eb4fbb0 LS |
2432 | |
2433 | if (inet_pton(AF_INET6, argv[4]->arg, &rdnss.addr) != 1) { | |
2434 | vty_out(vty, "Malformed IPv6 address\n"); | |
2435 | return CMD_WARNING_CONFIG_FAILED; | |
2436 | } | |
2437 | if (rtadv_rdnss_reset(zif, &rdnss) != 1) { | |
2438 | vty_out(vty, "Non-existant RDNSS address\n"); | |
2439 | return CMD_WARNING_CONFIG_FAILED; | |
2440 | } | |
2441 | ||
2442 | return CMD_SUCCESS; | |
2443 | } | |
2444 | ||
2445 | DEFUN(ipv6_nd_dnssl, | |
2446 | ipv6_nd_dnssl_cmd, | |
2447 | "ipv6 nd dnssl SUFFIX [<(0-4294967295)|infinite>]", | |
2448 | "Interface IPv6 config commands\n" | |
2449 | "Neighbor discovery\n" | |
2450 | "DNS search list information\n" | |
2451 | "Domain name suffix\n" | |
2452 | "Valid lifetime in seconds\n" | |
2453 | "Infinite valid lifetime\n") | |
2454 | { | |
2455 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
2456 | struct zebra_if *zif = ifp->info; | |
844e9180 | 2457 | struct rtadv_dnssl dnssl = {}; |
3eb4fbb0 LS |
2458 | size_t len; |
2459 | int ret; | |
2460 | ||
2461 | len = strlcpy(dnssl.name, argv[3]->arg, sizeof(dnssl.name)); | |
2462 | if (len == 0 || len >= sizeof(dnssl.name)) { | |
2463 | vty_out(vty, "Malformed DNS search domain\n"); | |
2464 | return CMD_WARNING_CONFIG_FAILED; | |
2465 | } | |
2466 | if (dnssl.name[len - 1] == '.') { | |
2467 | /* | |
2468 | * Allow, but don't require, a trailing dot signifying the root | |
2469 | * zone. Canonicalize by cutting it off if present. | |
2470 | */ | |
2471 | dnssl.name[len - 1] = '\0'; | |
2472 | len--; | |
2473 | } | |
2474 | if (argc > 4) { | |
2475 | char *lifetime = argv[4]->type == RANGE_TKN ? argv[4]->arg | |
2476 | : argv[4]->text; | |
2477 | dnssl.lifetime = strmatch(lifetime, "infinite") | |
2478 | ? UINT32_MAX | |
2479 | : strtoll(lifetime, NULL, 10); | |
2480 | dnssl.lifetime_set = 1; | |
2481 | } | |
2482 | ||
2483 | ret = rtadv_dnssl_encode(dnssl.encoded_name, dnssl.name); | |
2484 | if (ret < 0) { | |
2485 | vty_out(vty, "Malformed DNS search domain\n"); | |
2486 | return CMD_WARNING_CONFIG_FAILED; | |
2487 | } | |
2488 | dnssl.encoded_len = ret; | |
2489 | rtadv_dnssl_set(zif, &dnssl); | |
2490 | ||
2491 | return CMD_SUCCESS; | |
2492 | } | |
2493 | ||
2494 | DEFUN(no_ipv6_nd_dnssl, | |
2495 | no_ipv6_nd_dnssl_cmd, | |
2496 | "no ipv6 nd dnssl SUFFIX [<(0-4294967295)|infinite>]", | |
2497 | NO_STR | |
2498 | "Interface IPv6 config commands\n" | |
2499 | "Neighbor discovery\n" | |
2500 | "DNS search list information\n" | |
2501 | "Domain name suffix\n" | |
2502 | "Valid lifetime in seconds\n" | |
2503 | "Infinite valid lifetime\n") | |
2504 | { | |
2505 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
2506 | struct zebra_if *zif = ifp->info; | |
844e9180 | 2507 | struct rtadv_dnssl dnssl = {}; |
3eb4fbb0 LS |
2508 | size_t len; |
2509 | ||
2510 | len = strlcpy(dnssl.name, argv[4]->arg, sizeof(dnssl.name)); | |
2511 | if (len == 0 || len >= sizeof(dnssl.name)) { | |
2512 | vty_out(vty, "Malformed DNS search domain\n"); | |
2513 | return CMD_WARNING_CONFIG_FAILED; | |
2514 | } | |
2515 | if (dnssl.name[len - 1] == '.') { | |
2516 | dnssl.name[len - 1] = '\0'; | |
2517 | len--; | |
2518 | } | |
2519 | if (rtadv_dnssl_reset(zif, &dnssl) != 1) { | |
2520 | vty_out(vty, "Non-existant DNS search domain\n"); | |
2521 | return CMD_WARNING_CONFIG_FAILED; | |
2522 | } | |
2523 | ||
2524 | return CMD_SUCCESS; | |
2525 | } | |
2526 | ||
2527 | ||
2eb27eec DL |
2528 | /* Dump interface ND information to vty. */ |
2529 | static int nd_dump_vty(struct vty *vty, struct interface *ifp) | |
2530 | { | |
2531 | struct zebra_if *zif; | |
2532 | struct rtadvconf *rtadv; | |
2533 | int interval; | |
2534 | ||
2535 | zif = (struct zebra_if *)ifp->info; | |
2536 | rtadv = &zif->rtadv; | |
2537 | ||
2538 | if (rtadv->AdvSendAdvertisements) { | |
2539 | vty_out(vty, | |
2540 | " ND advertised reachable time is %d milliseconds\n", | |
2541 | rtadv->AdvReachableTime); | |
2542 | vty_out(vty, | |
b19ac878 | 2543 | " ND advertised retransmit interval is %u milliseconds\n", |
2eb27eec | 2544 | rtadv->AdvRetransTimer); |
fae01935 DS |
2545 | vty_out(vty, " ND advertised hop-count limit is %d hops\n", |
2546 | rtadv->AdvCurHopLimit); | |
2eb27eec DL |
2547 | vty_out(vty, " ND router advertisements sent: %d rcvd: %d\n", |
2548 | zif->ra_sent, zif->ra_rcvd); | |
2549 | interval = rtadv->MaxRtrAdvInterval; | |
2550 | if (interval % 1000) | |
2551 | vty_out(vty, | |
3efd0893 | 2552 | " ND router advertisements are sent every %d milliseconds\n", |
2eb27eec DL |
2553 | interval); |
2554 | else | |
2555 | vty_out(vty, | |
3efd0893 | 2556 | " ND router advertisements are sent every %d seconds\n", |
2eb27eec | 2557 | interval / 1000); |
adee8f21 DS |
2558 | if (!rtadv->UseFastRexmit) |
2559 | vty_out(vty, | |
2560 | " ND router advertisements do not use fast retransmit\n"); | |
2561 | ||
2eb27eec DL |
2562 | if (rtadv->AdvDefaultLifetime != -1) |
2563 | vty_out(vty, | |
2564 | " ND router advertisements live for %d seconds\n", | |
2565 | rtadv->AdvDefaultLifetime); | |
2566 | else | |
2567 | vty_out(vty, | |
2568 | " ND router advertisements lifetime tracks ra-interval\n"); | |
2569 | vty_out(vty, | |
3efd0893 | 2570 | " ND router advertisement default router preference is %s\n", |
2eb27eec DL |
2571 | rtadv_pref_strs[rtadv->DefaultPreference]); |
2572 | if (rtadv->AdvManagedFlag) | |
2573 | vty_out(vty, | |
2574 | " Hosts use DHCP to obtain routable addresses.\n"); | |
2575 | else | |
2576 | vty_out(vty, | |
2577 | " Hosts use stateless autoconfig for addresses.\n"); | |
2578 | if (rtadv->AdvHomeAgentFlag) { | |
2579 | vty_out(vty, | |
2580 | " ND router advertisements with Home Agent flag bit set.\n"); | |
2581 | if (rtadv->HomeAgentLifetime != -1) | |
2582 | vty_out(vty, | |
2583 | " Home Agent lifetime is %u seconds\n", | |
2584 | rtadv->HomeAgentLifetime); | |
2585 | else | |
2586 | vty_out(vty, | |
2587 | " Home Agent lifetime tracks ra-lifetime\n"); | |
2588 | vty_out(vty, " Home Agent preference is %u\n", | |
2589 | rtadv->HomeAgentPreference); | |
2590 | } | |
2591 | if (rtadv->AdvIntervalOption) | |
2592 | vty_out(vty, | |
2593 | " ND router advertisements with Adv. Interval option.\n"); | |
2594 | } | |
2595 | return 0; | |
2596 | } | |
2597 | ||
6ae93c05 | 2598 | |
718e3744 | 2599 | /* Write configuration about router advertisement. */ |
2eb27eec | 2600 | static int rtadv_config_write(struct vty *vty, struct interface *ifp) |
718e3744 | 2601 | { |
d62a17ae | 2602 | struct zebra_if *zif; |
2603 | struct listnode *node; | |
2604 | struct rtadv_prefix *rprefix; | |
3eb4fbb0 LS |
2605 | struct rtadv_rdnss *rdnss; |
2606 | struct rtadv_dnssl *dnssl; | |
d62a17ae | 2607 | int interval; |
2608 | ||
2609 | zif = ifp->info; | |
2610 | ||
ef322b02 | 2611 | if (!if_is_loopback_or_vrf(ifp)) { |
3ea48364 DS |
2612 | if (zif->rtadv.AdvSendAdvertisements |
2613 | && CHECK_FLAG(zif->rtadv.ra_configured, VTY_RA_CONFIGURED)) | |
d62a17ae | 2614 | vty_out(vty, " no ipv6 nd suppress-ra\n"); |
2615 | } | |
2616 | ||
2617 | interval = zif->rtadv.MaxRtrAdvInterval; | |
3ea48364 DS |
2618 | if (CHECK_FLAG(zif->rtadv.ra_configured, VTY_RA_INTERVAL_CONFIGURED)) { |
2619 | if (interval % 1000) | |
2620 | vty_out(vty, " ipv6 nd ra-interval msec %d\n", | |
2621 | interval); | |
2622 | else if (interval != RTADV_MAX_RTR_ADV_INTERVAL) | |
2623 | vty_out(vty, " ipv6 nd ra-interval %d\n", | |
2624 | interval / 1000); | |
2625 | } | |
d62a17ae | 2626 | |
2627 | if (zif->rtadv.AdvIntervalOption) | |
2628 | vty_out(vty, " ipv6 nd adv-interval-option\n"); | |
2629 | ||
adee8f21 DS |
2630 | if (!zif->rtadv.UseFastRexmit) |
2631 | vty_out(vty, " no ipv6 nd ra-fast-retrans\n"); | |
2632 | ||
b19ac878 DS |
2633 | if (zif->rtadv.AdvRetransTimer != 0) |
2634 | vty_out(vty, " ipv6 nd ra-retrans-interval %u\n", | |
2635 | zif->rtadv.AdvRetransTimer); | |
2636 | ||
fae01935 DS |
2637 | if (zif->rtadv.AdvCurHopLimit != RTADV_DEFAULT_HOPLIMIT) |
2638 | vty_out(vty, " ipv6 nd ra-hop-limit %d\n", | |
2639 | zif->rtadv.AdvCurHopLimit); | |
2640 | ||
d62a17ae | 2641 | if (zif->rtadv.AdvDefaultLifetime != -1) |
2642 | vty_out(vty, " ipv6 nd ra-lifetime %d\n", | |
2643 | zif->rtadv.AdvDefaultLifetime); | |
2644 | ||
2645 | if (zif->rtadv.HomeAgentPreference) | |
2646 | vty_out(vty, " ipv6 nd home-agent-preference %u\n", | |
2647 | zif->rtadv.HomeAgentPreference); | |
2648 | ||
2649 | if (zif->rtadv.HomeAgentLifetime != -1) | |
2650 | vty_out(vty, " ipv6 nd home-agent-lifetime %u\n", | |
2651 | zif->rtadv.HomeAgentLifetime); | |
2652 | ||
2653 | if (zif->rtadv.AdvHomeAgentFlag) | |
2654 | vty_out(vty, " ipv6 nd home-agent-config-flag\n"); | |
2655 | ||
2656 | if (zif->rtadv.AdvReachableTime) | |
2657 | vty_out(vty, " ipv6 nd reachable-time %d\n", | |
2658 | zif->rtadv.AdvReachableTime); | |
2659 | ||
2660 | if (zif->rtadv.AdvManagedFlag) | |
2661 | vty_out(vty, " ipv6 nd managed-config-flag\n"); | |
2662 | ||
2663 | if (zif->rtadv.AdvOtherConfigFlag) | |
2664 | vty_out(vty, " ipv6 nd other-config-flag\n"); | |
2665 | ||
2666 | if (zif->rtadv.DefaultPreference != RTADV_PREF_MEDIUM) | |
2667 | vty_out(vty, " ipv6 nd router-preference %s\n", | |
2668 | rtadv_pref_strs[zif->rtadv.DefaultPreference]); | |
2669 | ||
2670 | if (zif->rtadv.AdvLinkMTU) | |
2671 | vty_out(vty, " ipv6 nd mtu %d\n", zif->rtadv.AdvLinkMTU); | |
2672 | ||
2673 | for (ALL_LIST_ELEMENTS_RO(zif->rtadv.AdvPrefixList, node, rprefix)) { | |
2a855763 DS |
2674 | if ((rprefix->AdvPrefixCreate == PREFIX_SRC_MANUAL) |
2675 | || (rprefix->AdvPrefixCreate == PREFIX_SRC_BOTH)) { | |
2dbe669b | 2676 | vty_out(vty, " ipv6 nd prefix %pFX", &rprefix->prefix); |
2a855763 DS |
2677 | if ((rprefix->AdvValidLifetime != RTADV_VALID_LIFETIME) |
2678 | || (rprefix->AdvPreferredLifetime | |
2679 | != RTADV_PREFERRED_LIFETIME)) { | |
2680 | if (rprefix->AdvValidLifetime == UINT32_MAX) | |
2681 | vty_out(vty, " infinite"); | |
2682 | else | |
2683 | vty_out(vty, " %u", | |
2684 | rprefix->AdvValidLifetime); | |
2685 | if (rprefix->AdvPreferredLifetime == UINT32_MAX) | |
2686 | vty_out(vty, " infinite"); | |
2687 | else | |
2688 | vty_out(vty, " %u", | |
2689 | rprefix->AdvPreferredLifetime); | |
2690 | } | |
2691 | if (!rprefix->AdvOnLinkFlag) | |
2692 | vty_out(vty, " off-link"); | |
2693 | if (!rprefix->AdvAutonomousFlag) | |
2694 | vty_out(vty, " no-autoconfig"); | |
2695 | if (rprefix->AdvRouterAddressFlag) | |
2696 | vty_out(vty, " router-address"); | |
2697 | vty_out(vty, "\n"); | |
d62a17ae | 2698 | } |
3e31cded | 2699 | } |
2a855763 | 2700 | |
3eb4fbb0 LS |
2701 | for (ALL_LIST_ELEMENTS_RO(zif->rtadv.AdvRDNSSList, node, rdnss)) { |
2702 | char buf[INET6_ADDRSTRLEN]; | |
2703 | ||
2704 | vty_out(vty, " ipv6 nd rdnss %s", | |
2705 | inet_ntop(AF_INET6, &rdnss->addr, buf, sizeof(buf))); | |
2706 | if (rdnss->lifetime_set) { | |
2707 | if (rdnss->lifetime == UINT32_MAX) | |
2708 | vty_out(vty, " infinite"); | |
2709 | else | |
2710 | vty_out(vty, " %u", rdnss->lifetime); | |
2711 | } | |
2712 | vty_out(vty, "\n"); | |
2713 | } | |
2714 | for (ALL_LIST_ELEMENTS_RO(zif->rtadv.AdvDNSSLList, node, dnssl)) { | |
2715 | vty_out(vty, " ipv6 nd dnssl %s", dnssl->name); | |
2716 | if (dnssl->lifetime_set) { | |
2717 | if (dnssl->lifetime == UINT32_MAX) | |
2718 | vty_out(vty, " infinite"); | |
2719 | else | |
2720 | vty_out(vty, " %u", dnssl->lifetime); | |
2721 | } | |
2722 | vty_out(vty, "\n"); | |
2723 | } | |
2eb27eec | 2724 | return 0; |
718e3744 | 2725 | } |
2726 | ||
718e3744 | 2727 | |
df9c8c57 | 2728 | static void rtadv_event(struct zebra_vrf *zvrf, enum rtadv_event event, int val) |
718e3744 | 2729 | { |
7c2ddfb9 | 2730 | struct rtadv *rtadv; |
d62a17ae | 2731 | |
60077146 DS |
2732 | if (IS_ZEBRA_DEBUG_EVENT) { |
2733 | struct vrf *vrf = zvrf->vrf; | |
2734 | ||
2735 | zlog_debug("%s(%s) with event: %d and val: %d", __func__, | |
2736 | VRF_LOGNAME(vrf), event, val); | |
2737 | } | |
2738 | ||
7c2ddfb9 SW |
2739 | rtadv = &zvrf->rtadv; |
2740 | ||
d62a17ae | 2741 | switch (event) { |
2742 | case RTADV_START: | |
7c2ddfb9 | 2743 | thread_add_read(zrouter.master, rtadv_read, zvrf, rtadv->sock, |
d62a17ae | 2744 | &rtadv->ra_read); |
df9c8c57 | 2745 | thread_add_event(zrouter.master, rtadv_timer, zvrf, 0, |
d62a17ae | 2746 | &rtadv->ra_timer); |
2747 | break; | |
2748 | case RTADV_STOP: | |
311c15ee DS |
2749 | THREAD_OFF(rtadv->ra_timer); |
2750 | THREAD_OFF(rtadv->ra_read); | |
d62a17ae | 2751 | break; |
2752 | case RTADV_TIMER: | |
df9c8c57 | 2753 | thread_add_timer(zrouter.master, rtadv_timer, zvrf, val, |
d62a17ae | 2754 | &rtadv->ra_timer); |
2755 | break; | |
2756 | case RTADV_TIMER_MSEC: | |
df9c8c57 | 2757 | thread_add_timer_msec(zrouter.master, rtadv_timer, zvrf, val, |
d62a17ae | 2758 | &rtadv->ra_timer); |
2759 | break; | |
2760 | case RTADV_READ: | |
7c2ddfb9 | 2761 | thread_add_read(zrouter.master, rtadv_read, zvrf, rtadv->sock, |
d62a17ae | 2762 | &rtadv->ra_read); |
2763 | break; | |
2764 | default: | |
2765 | break; | |
718e3744 | 2766 | } |
d62a17ae | 2767 | return; |
718e3744 | 2768 | } |
2769 | ||
7c2ddfb9 | 2770 | void rtadv_vrf_init(struct zebra_vrf *zvrf) |
718e3744 | 2771 | { |
7c2ddfb9 SW |
2772 | if (!vrf_is_backend_netns() && (zvrf_id(zvrf) != VRF_DEFAULT)) |
2773 | return; | |
2774 | ||
2775 | zvrf->rtadv.sock = rtadv_make_socket(zvrf->zns->ns_id); | |
cd80d74f | 2776 | } |
718e3744 | 2777 | |
aab5893a | 2778 | void rtadv_vrf_terminate(struct zebra_vrf *zvrf) |
cd80d74f | 2779 | { |
7c2ddfb9 SW |
2780 | if (!vrf_is_backend_netns() && (zvrf_id(zvrf) != VRF_DEFAULT)) |
2781 | return; | |
2782 | ||
df9c8c57 PG |
2783 | rtadv_event(zvrf, RTADV_STOP, 0); |
2784 | if (zvrf->rtadv.sock >= 0) { | |
2785 | close(zvrf->rtadv.sock); | |
2786 | zvrf->rtadv.sock = -1; | |
d62a17ae | 2787 | } |
aab5893a | 2788 | |
7c2ddfb9 SW |
2789 | adv_if_clean(zvrf); |
2790 | adv_msec_if_clean(zvrf); | |
aab5893a DS |
2791 | } |
2792 | ||
d62a17ae | 2793 | void rtadv_cmd_init(void) |
cd80d74f | 2794 | { |
2eb27eec DL |
2795 | hook_register(zebra_if_extra_info, nd_dump_vty); |
2796 | hook_register(zebra_if_config_wr, rtadv_config_write); | |
2797 | ||
2a356cee SW |
2798 | install_element(VIEW_NODE, &show_ipv6_nd_ra_if_cmd); |
2799 | ||
adee8f21 DS |
2800 | install_element(INTERFACE_NODE, &ipv6_nd_ra_fast_retrans_cmd); |
2801 | install_element(INTERFACE_NODE, &no_ipv6_nd_ra_fast_retrans_cmd); | |
b19ac878 DS |
2802 | install_element(INTERFACE_NODE, &ipv6_nd_ra_retrans_interval_cmd); |
2803 | install_element(INTERFACE_NODE, &no_ipv6_nd_ra_retrans_interval_cmd); | |
fae01935 DS |
2804 | install_element(INTERFACE_NODE, &ipv6_nd_ra_hop_limit_cmd); |
2805 | install_element(INTERFACE_NODE, &no_ipv6_nd_ra_hop_limit_cmd); | |
d62a17ae | 2806 | install_element(INTERFACE_NODE, &ipv6_nd_suppress_ra_cmd); |
2807 | install_element(INTERFACE_NODE, &no_ipv6_nd_suppress_ra_cmd); | |
2808 | install_element(INTERFACE_NODE, &ipv6_nd_ra_interval_cmd); | |
2809 | install_element(INTERFACE_NODE, &ipv6_nd_ra_interval_msec_cmd); | |
2810 | install_element(INTERFACE_NODE, &no_ipv6_nd_ra_interval_cmd); | |
2811 | install_element(INTERFACE_NODE, &ipv6_nd_ra_lifetime_cmd); | |
2812 | install_element(INTERFACE_NODE, &no_ipv6_nd_ra_lifetime_cmd); | |
2813 | install_element(INTERFACE_NODE, &ipv6_nd_reachable_time_cmd); | |
2814 | install_element(INTERFACE_NODE, &no_ipv6_nd_reachable_time_cmd); | |
2815 | install_element(INTERFACE_NODE, &ipv6_nd_managed_config_flag_cmd); | |
2816 | install_element(INTERFACE_NODE, &no_ipv6_nd_managed_config_flag_cmd); | |
2817 | install_element(INTERFACE_NODE, &ipv6_nd_other_config_flag_cmd); | |
2818 | install_element(INTERFACE_NODE, &no_ipv6_nd_other_config_flag_cmd); | |
2819 | install_element(INTERFACE_NODE, &ipv6_nd_homeagent_config_flag_cmd); | |
2820 | install_element(INTERFACE_NODE, &no_ipv6_nd_homeagent_config_flag_cmd); | |
2821 | install_element(INTERFACE_NODE, &ipv6_nd_homeagent_preference_cmd); | |
2822 | install_element(INTERFACE_NODE, &no_ipv6_nd_homeagent_preference_cmd); | |
2823 | install_element(INTERFACE_NODE, &ipv6_nd_homeagent_lifetime_cmd); | |
2824 | install_element(INTERFACE_NODE, &no_ipv6_nd_homeagent_lifetime_cmd); | |
2825 | install_element(INTERFACE_NODE, | |
2826 | &ipv6_nd_adv_interval_config_option_cmd); | |
2827 | install_element(INTERFACE_NODE, | |
2828 | &no_ipv6_nd_adv_interval_config_option_cmd); | |
2829 | install_element(INTERFACE_NODE, &ipv6_nd_prefix_cmd); | |
2830 | install_element(INTERFACE_NODE, &no_ipv6_nd_prefix_cmd); | |
2831 | install_element(INTERFACE_NODE, &ipv6_nd_router_preference_cmd); | |
2832 | install_element(INTERFACE_NODE, &no_ipv6_nd_router_preference_cmd); | |
2833 | install_element(INTERFACE_NODE, &ipv6_nd_mtu_cmd); | |
2834 | install_element(INTERFACE_NODE, &no_ipv6_nd_mtu_cmd); | |
3eb4fbb0 LS |
2835 | install_element(INTERFACE_NODE, &ipv6_nd_rdnss_cmd); |
2836 | install_element(INTERFACE_NODE, &no_ipv6_nd_rdnss_cmd); | |
2837 | install_element(INTERFACE_NODE, &ipv6_nd_dnssl_cmd); | |
2838 | install_element(INTERFACE_NODE, &no_ipv6_nd_dnssl_cmd); | |
718e3744 | 2839 | } |
2840 | ||
d62a17ae | 2841 | static int if_join_all_router(int sock, struct interface *ifp) |
718e3744 | 2842 | { |
d62a17ae | 2843 | int ret; |
718e3744 | 2844 | |
d62a17ae | 2845 | struct ipv6_mreq mreq; |
718e3744 | 2846 | |
d62a17ae | 2847 | memset(&mreq, 0, sizeof(struct ipv6_mreq)); |
2848 | inet_pton(AF_INET6, ALLROUTER, &mreq.ipv6mr_multiaddr); | |
2849 | mreq.ipv6mr_interface = ifp->ifindex; | |
718e3744 | 2850 | |
d62a17ae | 2851 | ret = setsockopt(sock, IPPROTO_IPV6, IPV6_JOIN_GROUP, (char *)&mreq, |
0d6f7fd6 | 2852 | sizeof(mreq)); |
d62a17ae | 2853 | if (ret < 0) |
450971aa | 2854 | flog_err_sys(EC_LIB_SOCKET, |
9df414fe QY |
2855 | "%s(%u): Failed to join group, socket %u error %s", |
2856 | ifp->name, ifp->ifindex, sock, | |
2857 | safe_strerror(errno)); | |
718e3744 | 2858 | |
60077146 DS |
2859 | if (IS_ZEBRA_DEBUG_EVENT) { |
2860 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); | |
2861 | ||
d62a17ae | 2862 | zlog_debug( |
60077146 DS |
2863 | "%s(%s:%u): Join All-Routers multicast group, socket %u", |
2864 | ifp->name, VRF_LOGNAME(vrf), ifp->ifindex, sock); | |
2865 | } | |
718e3744 | 2866 | |
d62a17ae | 2867 | return 0; |
718e3744 | 2868 | } |
2869 | ||
d62a17ae | 2870 | static int if_leave_all_router(int sock, struct interface *ifp) |
718e3744 | 2871 | { |
d62a17ae | 2872 | int ret; |
718e3744 | 2873 | |
d62a17ae | 2874 | struct ipv6_mreq mreq; |
718e3744 | 2875 | |
d62a17ae | 2876 | memset(&mreq, 0, sizeof(struct ipv6_mreq)); |
2877 | inet_pton(AF_INET6, ALLROUTER, &mreq.ipv6mr_multiaddr); | |
2878 | mreq.ipv6mr_interface = ifp->ifindex; | |
718e3744 | 2879 | |
d62a17ae | 2880 | ret = setsockopt(sock, IPPROTO_IPV6, IPV6_LEAVE_GROUP, (char *)&mreq, |
0d6f7fd6 | 2881 | sizeof(mreq)); |
60077146 DS |
2882 | if (ret < 0) { |
2883 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); | |
2884 | ||
9df414fe | 2885 | flog_err_sys( |
450971aa | 2886 | EC_LIB_SOCKET, |
60077146 DS |
2887 | "%s(%s:%u): Failed to leave group, socket %u error %s", |
2888 | ifp->name, VRF_LOGNAME(vrf), ifp->ifindex, sock, | |
2889 | safe_strerror(errno)); | |
2890 | } | |
2891 | if (IS_ZEBRA_DEBUG_EVENT) { | |
2892 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); | |
718e3744 | 2893 | |
d62a17ae | 2894 | zlog_debug( |
60077146 DS |
2895 | "%s(%s:%u): Leave All-Routers multicast group, socket %u", |
2896 | ifp->name, VRF_LOGNAME(vrf), ifp->ifindex, sock); | |
2897 | } | |
d62a17ae | 2898 | return 0; |
718e3744 | 2899 | } |
2900 | ||
2901 | #else | |
7c2ddfb9 | 2902 | void rtadv_vrf_init(struct zebra_vrf *zvrf) |
cd80d74f | 2903 | { |
d62a17ae | 2904 | /* Empty.*/; |
cd80d74f | 2905 | } |
7c2ddfb9 | 2906 | |
d62a17ae | 2907 | void rtadv_cmd_init(void) |
718e3744 | 2908 | { |
d62a17ae | 2909 | /* Empty.*/; |
718e3744 | 2910 | } |
0af3d691 MS |
2911 | |
2912 | void rtadv_add_prefix(struct zebra_if *zif, const struct prefix_ipv6 *p) | |
2913 | { | |
2914 | /* Empty.*/; | |
2915 | } | |
2916 | ||
2917 | void rtadv_delete_prefix(struct zebra_if *zif, const struct prefix *p) | |
2918 | { | |
2919 | /* Empty.*/; | |
2920 | } | |
2921 | ||
2922 | void rtadv_stop_ra(struct interface *ifp) | |
2923 | { | |
2924 | /* Empty.*/; | |
2925 | } | |
2926 | ||
2927 | void rtadv_stop_ra_all(void) | |
2928 | { | |
2929 | /* Empty.*/; | |
2930 | } | |
2931 | ||
e748c7a4 DS |
2932 | /* |
2933 | * If the end user does not have RADV enabled we should | |
2934 | * handle this better | |
2935 | */ | |
2936 | void zebra_interface_radv_disable(ZAPI_HANDLER_ARGS) | |
2937 | { | |
2938 | if (IS_ZEBRA_DEBUG_PACKET) | |
2939 | zlog_debug( | |
2940 | "Received %s command, but ZEBRA is not compiled with Router Advertisements on", | |
2941 | zserv_command_string(hdr->command)); | |
2942 | ||
2943 | return; | |
2944 | } | |
2945 | ||
2946 | void zebra_interface_radv_enable(ZAPI_HANDLER_ARGS) | |
2947 | { | |
2948 | if (IS_ZEBRA_DEBUG_PACKET) | |
2949 | zlog_debug( | |
2950 | "Received %s command, but ZEBRA is not compiled with Router Advertisements on", | |
2951 | zserv_command_string(hdr->command)); | |
2952 | ||
2953 | return; | |
2954 | } | |
2955 | ||
56c1f7d8 | 2956 | #endif /* HAVE_RTADV */ |