1 /* Router advertisement
2 * Copyright (C) 2005 6WIND <jean-mickael.guerin@6wind.com>
3 * Copyright (C) 1999 Kunihiro Ishiguro
5 * This file is part of GNU Zebra.
7 * GNU Zebra is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2, or (at your option) any
12 * GNU Zebra is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with GNU Zebra; see the file COPYING. If not, write to the Free
19 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
26 #include "zebra_memory.h"
38 #include "zebra/interface.h"
39 #include "zebra/rtadv.h"
40 #include "zebra/debug.h"
41 #include "zebra/rib.h"
42 #include "zebra/zserv.h"
43 #include "zebra/zebra_ns.h"
44 #include "zebra/zebra_vrf.h"
46 extern struct zebra_privs_t zserv_privs
;
48 #if defined (HAVE_IPV6) && defined (HAVE_RTADV)
51 #include <netinet/icmp6.h>
54 /* If RFC2133 definition is used. */
55 #ifndef IPV6_JOIN_GROUP
56 #define IPV6_JOIN_GROUP IPV6_ADD_MEMBERSHIP
58 #ifndef IPV6_LEAVE_GROUP
59 #define IPV6_LEAVE_GROUP IPV6_DROP_MEMBERSHIP
62 #define ALLNODE "ff02::1"
63 #define ALLROUTER "ff02::2"
65 enum rtadv_event
{RTADV_START
, RTADV_STOP
, RTADV_TIMER
,
66 RTADV_TIMER_MSEC
, RTADV_READ
};
68 static void rtadv_event (struct zebra_ns
*, enum rtadv_event
, int);
70 static int if_join_all_router (int, struct interface
*);
71 static int if_leave_all_router (int, struct interface
*);
74 rtadv_increment_received(struct zebra_ns
*zns
, ifindex_t
*ifindex
)
77 struct interface
*iface
;
80 iface
= if_lookup_by_index_per_ns (zns
, *ifindex
);
81 if (iface
&& iface
->info
)
91 rtadv_recv_packet (struct zebra_ns
*zns
, int sock
, u_char
*buf
, int buflen
,
92 struct sockaddr_in6
*from
, ifindex_t
*ifindex
,
98 struct cmsghdr
*cmsgptr
;
103 /* Fill in message and iovec. */
104 msg
.msg_name
= (void *) from
;
105 msg
.msg_namelen
= sizeof (struct sockaddr_in6
);
108 msg
.msg_control
= (void *) adata
;
109 msg
.msg_controllen
= sizeof adata
;
111 iov
.iov_len
= buflen
;
113 /* If recvmsg fail return minus value. */
114 ret
= recvmsg (sock
, &msg
, 0);
118 for (cmsgptr
= ZCMSG_FIRSTHDR(&msg
); cmsgptr
!= NULL
;
119 cmsgptr
= CMSG_NXTHDR(&msg
, cmsgptr
))
121 /* I want interface index which this packet comes from. */
122 if (cmsgptr
->cmsg_level
== IPPROTO_IPV6
&&
123 cmsgptr
->cmsg_type
== IPV6_PKTINFO
)
125 struct in6_pktinfo
*ptr
;
127 ptr
= (struct in6_pktinfo
*) CMSG_DATA (cmsgptr
);
128 *ifindex
= ptr
->ipi6_ifindex
;
129 memcpy(&dst
, &ptr
->ipi6_addr
, sizeof(ptr
->ipi6_addr
));
132 /* Incoming packet's hop limit. */
133 if (cmsgptr
->cmsg_level
== IPPROTO_IPV6
&&
134 cmsgptr
->cmsg_type
== IPV6_HOPLIMIT
)
136 int *hoptr
= (int *) CMSG_DATA (cmsgptr
);
141 rtadv_increment_received(zns
, ifindex
);
145 #define RTADV_MSG_SIZE 4096
147 /* Send router advertisement packet. */
149 rtadv_send_packet (int sock
, struct interface
*ifp
)
153 struct cmsghdr
*cmsgptr
;
154 struct in6_pktinfo
*pkt
;
155 struct sockaddr_in6 addr
;
156 static void *adata
= NULL
;
157 unsigned char buf
[RTADV_MSG_SIZE
];
158 struct nd_router_advert
*rtadv
;
161 struct zebra_if
*zif
;
162 struct rtadv_prefix
*rprefix
;
163 u_char all_nodes_addr
[] = {0xff,0x02,0,0,0,0,0,0,0,0,0,0,0,0,0,1};
164 struct listnode
*node
;
165 u_int16_t pkt_RouterLifetime
;
168 * Allocate control message bufffer. This is dynamic because
169 * CMSG_SPACE is not guaranteed not to call a function. Note that
170 * the size will be different on different architectures due to
171 * differing alignment rules.
175 /* XXX Free on shutdown. */
176 adata
= malloc(CMSG_SPACE(sizeof(struct in6_pktinfo
)));
179 zlog_err("rtadv_send_packet: can't malloc control data");
182 /* Logging of packet. */
183 if (IS_ZEBRA_DEBUG_PACKET
)
184 zlog_debug ("%s(%u): Tx RA, socket %u",
185 ifp
->name
, ifp
->ifindex
, sock
);
187 /* Fill in sockaddr_in6. */
188 memset (&addr
, 0, sizeof (struct sockaddr_in6
));
189 addr
.sin6_family
= AF_INET6
;
191 addr
.sin6_len
= sizeof (struct sockaddr_in6
);
192 #endif /* SIN6_LEN */
193 addr
.sin6_port
= htons (IPPROTO_ICMPV6
);
194 IPV6_ADDR_COPY (&addr
.sin6_addr
, all_nodes_addr
);
196 /* Fetch interface information. */
199 /* Make router advertisement message. */
200 rtadv
= (struct nd_router_advert
*) buf
;
202 rtadv
->nd_ra_type
= ND_ROUTER_ADVERT
;
203 rtadv
->nd_ra_code
= 0;
204 rtadv
->nd_ra_cksum
= 0;
206 rtadv
->nd_ra_curhoplimit
= 64;
208 /* RFC4191: Default Router Preference is 0 if Router Lifetime is 0. */
209 rtadv
->nd_ra_flags_reserved
=
210 zif
->rtadv
.AdvDefaultLifetime
== 0 ? 0 : zif
->rtadv
.DefaultPreference
;
211 rtadv
->nd_ra_flags_reserved
<<= 3;
213 if (zif
->rtadv
.AdvManagedFlag
)
214 rtadv
->nd_ra_flags_reserved
|= ND_RA_FLAG_MANAGED
;
215 if (zif
->rtadv
.AdvOtherConfigFlag
)
216 rtadv
->nd_ra_flags_reserved
|= ND_RA_FLAG_OTHER
;
217 if (zif
->rtadv
.AdvHomeAgentFlag
)
218 rtadv
->nd_ra_flags_reserved
|= ND_RA_FLAG_HOME_AGENT
;
219 /* Note that according to Neighbor Discovery (RFC 4861 [18]),
220 * AdvDefaultLifetime is by default based on the value of
221 * MaxRtrAdvInterval. AdvDefaultLifetime is used in the Router Lifetime
222 * field of Router Advertisements. Given that this field is expressed
223 * in seconds, a small MaxRtrAdvInterval value can result in a zero
224 * value for this field. To prevent this, routers SHOULD keep
225 * AdvDefaultLifetime in at least one second, even if the use of
226 * MaxRtrAdvInterval would result in a smaller value. -- RFC6275, 7.5 */
227 pkt_RouterLifetime
= zif
->rtadv
.AdvDefaultLifetime
!= -1 ?
228 zif
->rtadv
.AdvDefaultLifetime
:
229 MAX (1, 0.003 * zif
->rtadv
.MaxRtrAdvInterval
);
230 rtadv
->nd_ra_router_lifetime
= htons (pkt_RouterLifetime
);
231 rtadv
->nd_ra_reachable
= htonl (zif
->rtadv
.AdvReachableTime
);
232 rtadv
->nd_ra_retransmit
= htonl (0);
234 len
= sizeof (struct nd_router_advert
);
236 /* If both the Home Agent Preference and Home Agent Lifetime are set to
237 * their default values specified above, this option SHOULD NOT be
238 * included in the Router Advertisement messages sent by this home
239 * agent. -- RFC6275, 7.4 */
242 zif
->rtadv
.AdvHomeAgentFlag
&&
243 (zif
->rtadv
.HomeAgentPreference
|| zif
->rtadv
.HomeAgentLifetime
!= -1)
246 struct nd_opt_homeagent_info
*ndopt_hai
=
247 (struct nd_opt_homeagent_info
*)(buf
+ len
);
248 ndopt_hai
->nd_opt_hai_type
= ND_OPT_HA_INFORMATION
;
249 ndopt_hai
->nd_opt_hai_len
= 1;
250 ndopt_hai
->nd_opt_hai_reserved
= 0;
251 ndopt_hai
->nd_opt_hai_preference
= htons(zif
->rtadv
.HomeAgentPreference
);
252 /* 16-bit unsigned integer. The lifetime associated with the home
253 * agent in units of seconds. The default value is the same as the
254 * Router Lifetime, as specified in the main body of the Router
255 * Advertisement. The maximum value corresponds to 18.2 hours. A
256 * value of 0 MUST NOT be used. -- RFC6275, 7.5 */
257 ndopt_hai
->nd_opt_hai_lifetime
= htons
259 zif
->rtadv
.HomeAgentLifetime
!= -1 ?
260 zif
->rtadv
.HomeAgentLifetime
:
261 MAX (1, pkt_RouterLifetime
) /* 0 is OK for RL, but not for HAL*/
263 len
+= sizeof(struct nd_opt_homeagent_info
);
266 if (zif
->rtadv
.AdvIntervalOption
)
268 struct nd_opt_adv_interval
*ndopt_adv
=
269 (struct nd_opt_adv_interval
*)(buf
+ len
);
270 ndopt_adv
->nd_opt_ai_type
= ND_OPT_ADV_INTERVAL
;
271 ndopt_adv
->nd_opt_ai_len
= 1;
272 ndopt_adv
->nd_opt_ai_reserved
= 0;
273 ndopt_adv
->nd_opt_ai_interval
= htonl(zif
->rtadv
.MaxRtrAdvInterval
);
274 len
+= sizeof(struct nd_opt_adv_interval
);
277 /* Fill in prefix. */
278 for (ALL_LIST_ELEMENTS_RO (zif
->rtadv
.AdvPrefixList
, node
, rprefix
))
280 struct nd_opt_prefix_info
*pinfo
;
282 pinfo
= (struct nd_opt_prefix_info
*) (buf
+ len
);
284 pinfo
->nd_opt_pi_type
= ND_OPT_PREFIX_INFORMATION
;
285 pinfo
->nd_opt_pi_len
= 4;
286 pinfo
->nd_opt_pi_prefix_len
= rprefix
->prefix
.prefixlen
;
288 pinfo
->nd_opt_pi_flags_reserved
= 0;
289 if (rprefix
->AdvOnLinkFlag
)
290 pinfo
->nd_opt_pi_flags_reserved
|= ND_OPT_PI_FLAG_ONLINK
;
291 if (rprefix
->AdvAutonomousFlag
)
292 pinfo
->nd_opt_pi_flags_reserved
|= ND_OPT_PI_FLAG_AUTO
;
293 if (rprefix
->AdvRouterAddressFlag
)
294 pinfo
->nd_opt_pi_flags_reserved
|= ND_OPT_PI_FLAG_RADDR
;
296 pinfo
->nd_opt_pi_valid_time
= htonl (rprefix
->AdvValidLifetime
);
297 pinfo
->nd_opt_pi_preferred_time
= htonl (rprefix
->AdvPreferredLifetime
);
298 pinfo
->nd_opt_pi_reserved2
= 0;
300 IPV6_ADDR_COPY (&pinfo
->nd_opt_pi_prefix
, &rprefix
->prefix
.prefix
);
304 u_char buf
[INET6_ADDRSTRLEN
];
306 zlog_debug ("DEBUG %s", inet_ntop (AF_INET6
, &pinfo
->nd_opt_pi_prefix
,
307 buf
, INET6_ADDRSTRLEN
));
312 len
+= sizeof (struct nd_opt_prefix_info
);
315 /* Hardware address. */
316 if (ifp
->hw_addr_len
!= 0)
318 buf
[len
++] = ND_OPT_SOURCE_LINKADDR
;
320 /* Option length should be rounded up to next octet if
321 the link address does not end on an octet boundary. */
322 buf
[len
++] = (ifp
->hw_addr_len
+ 9) >> 3;
324 memcpy (buf
+ len
, ifp
->hw_addr
, ifp
->hw_addr_len
);
325 len
+= ifp
->hw_addr_len
;
327 /* Pad option to end on an octet boundary. */
328 memset (buf
+ len
, 0, -(ifp
->hw_addr_len
+ 2) & 0x7);
329 len
+= -(ifp
->hw_addr_len
+ 2) & 0x7;
333 if (zif
->rtadv
.AdvLinkMTU
)
335 struct nd_opt_mtu
* opt
= (struct nd_opt_mtu
*) (buf
+ len
);
336 opt
->nd_opt_mtu_type
= ND_OPT_MTU
;
337 opt
->nd_opt_mtu_len
= 1;
338 opt
->nd_opt_mtu_reserved
= 0;
339 opt
->nd_opt_mtu_mtu
= htonl (zif
->rtadv
.AdvLinkMTU
);
340 len
+= sizeof (struct nd_opt_mtu
);
343 msg
.msg_name
= (void *) &addr
;
344 msg
.msg_namelen
= sizeof (struct sockaddr_in6
);
347 msg
.msg_control
= (void *) adata
;
348 msg
.msg_controllen
= CMSG_SPACE(sizeof(struct in6_pktinfo
));
353 cmsgptr
= ZCMSG_FIRSTHDR(&msg
);
354 cmsgptr
->cmsg_len
= CMSG_LEN(sizeof(struct in6_pktinfo
));
355 cmsgptr
->cmsg_level
= IPPROTO_IPV6
;
356 cmsgptr
->cmsg_type
= IPV6_PKTINFO
;
358 pkt
= (struct in6_pktinfo
*) CMSG_DATA (cmsgptr
);
359 memset (&pkt
->ipi6_addr
, 0, sizeof (struct in6_addr
));
360 pkt
->ipi6_ifindex
= ifp
->ifindex
;
362 ret
= sendmsg (sock
, &msg
, 0);
365 zlog_err ("%s(%u): Tx RA failed, socket %u error %d (%s)",
366 ifp
->name
, ifp
->ifindex
, sock
, errno
, safe_strerror(errno
));
373 rtadv_timer (struct thread
*thread
)
375 struct zebra_ns
*zns
= THREAD_ARG (thread
);
377 struct listnode
*node
, *nnode
;
378 struct interface
*ifp
;
379 struct zebra_if
*zif
;
382 zns
->rtadv
.ra_timer
= NULL
;
383 if (zns
->rtadv
.adv_msec_if_count
== 0)
385 period
= 1000; /* 1 s */
386 rtadv_event (zns
, RTADV_TIMER
, 1 /* 1 s */);
390 period
= 10; /* 10 ms */
391 rtadv_event (zns
, RTADV_TIMER_MSEC
, 10 /* 10 ms */);
394 for (iter
= vrf_first (); iter
!= VRF_ITER_INVALID
; iter
= vrf_next (iter
))
395 for (ALL_LIST_ELEMENTS (vrf_iter2iflist (iter
), node
, nnode
, ifp
))
397 if (if_is_loopback (ifp
) ||
398 CHECK_FLAG(ifp
->status
, ZEBRA_INTERFACE_VRF_LOOPBACK
) ||
399 ! if_is_operative (ifp
))
404 if (zif
->rtadv
.AdvSendAdvertisements
)
406 if (zif
->rtadv
.inFastRexmit
)
408 /* We assume we fast rexmit every sec so no additional vars */
409 if (--zif
->rtadv
.NumFastReXmitsRemain
<= 0)
410 zif
->rtadv
.inFastRexmit
= 0;
412 if (IS_ZEBRA_DEBUG_SEND
)
413 zlog_debug("Fast RA Rexmit on interface %s", ifp
->name
);
415 rtadv_send_packet (zns
->rtadv
.sock
, ifp
);
419 zif
->rtadv
.AdvIntervalTimer
-= period
;
420 if (zif
->rtadv
.AdvIntervalTimer
<= 0)
422 /* FIXME: using MaxRtrAdvInterval each time isn't what section
423 6.2.4 of RFC4861 tells to do. */
424 zif
->rtadv
.AdvIntervalTimer
= zif
->rtadv
.MaxRtrAdvInterval
;
425 rtadv_send_packet (zns
->rtadv
.sock
, ifp
);
435 rtadv_process_solicit (struct interface
*ifp
)
437 struct zebra_vrf
*zvrf
= vrf_info_lookup (ifp
->vrf_id
);
438 struct zebra_ns
*zns
= zvrf
->zns
;
441 rtadv_send_packet (zns
->rtadv
.sock
, ifp
);
445 rtadv_process_advert (u_char
*msg
, unsigned int len
, struct interface
*ifp
,
446 struct sockaddr_in6
*addr
)
448 struct nd_router_advert
*radvert
;
449 char addr_str
[INET6_ADDRSTRLEN
];
450 struct zebra_if
*zif
;
455 inet_ntop (AF_INET6
, &addr
->sin6_addr
, addr_str
, INET6_ADDRSTRLEN
);
457 if (len
< sizeof(struct nd_router_advert
)) {
458 zlog_warn("%s(%u): Rx RA with invalid length %d from %s",
459 ifp
->name
, ifp
->ifindex
, len
, addr_str
);
462 if (!IN6_IS_ADDR_LINKLOCAL(&addr
->sin6_addr
)) {
463 zlog_warn("%s(%u): Rx RA with non-linklocal source address from %s",
464 ifp
->name
, ifp
->ifindex
, addr_str
);
468 radvert
= (struct nd_router_advert
*) msg
;
470 if ((radvert
->nd_ra_curhoplimit
&& zif
->rtadv
.AdvCurHopLimit
) &&
471 (radvert
->nd_ra_curhoplimit
!= zif
->rtadv
.AdvCurHopLimit
))
473 zlog_warn("%s(%u): Rx RA - our AdvCurHopLimit doesn't agree with %s",
474 ifp
->name
, ifp
->ifindex
, addr_str
);
477 if ((radvert
->nd_ra_flags_reserved
& ND_RA_FLAG_MANAGED
) &&
478 !zif
->rtadv
.AdvManagedFlag
)
480 zlog_warn("%s(%u): Rx RA - our AdvManagedFlag doesn't agree with %s",
481 ifp
->name
, ifp
->ifindex
, addr_str
);
484 if ((radvert
->nd_ra_flags_reserved
& ND_RA_FLAG_OTHER
) &&
485 !zif
->rtadv
.AdvOtherConfigFlag
)
487 zlog_warn("%s(%u): Rx RA - our AdvOtherConfigFlag doesn't agree with %s",
488 ifp
->name
, ifp
->ifindex
, addr_str
);
491 if ((radvert
->nd_ra_reachable
&& zif
->rtadv
.AdvReachableTime
) &&
492 (ntohl(radvert
->nd_ra_reachable
) != zif
->rtadv
.AdvReachableTime
))
494 zlog_warn("%s(%u): Rx RA - our AdvReachableTime doesn't agree with %s",
495 ifp
->name
, ifp
->ifindex
, addr_str
);
498 if ((radvert
->nd_ra_retransmit
&& zif
->rtadv
.AdvRetransTimer
) &&
499 (ntohl(radvert
->nd_ra_retransmit
) != (unsigned int)zif
->rtadv
.AdvRetransTimer
))
501 zlog_warn("%s(%u): Rx RA - our AdvRetransTimer doesn't agree with %s",
502 ifp
->name
, ifp
->ifindex
, addr_str
);
505 /* Create entry for neighbor if not known. */
507 IPV6_ADDR_COPY (&p
.u
.prefix
, &addr
->sin6_addr
);
508 p
.prefixlen
= IPV6_MAX_PREFIXLEN
;
510 if (!nbr_connected_check(ifp
, &p
))
511 nbr_connected_add_ipv6 (ifp
, &addr
->sin6_addr
);
516 rtadv_process_packet (u_char
*buf
, unsigned int len
, ifindex_t ifindex
, int hoplimit
,
517 struct sockaddr_in6
*from
, struct zebra_ns
*zns
)
519 struct icmp6_hdr
*icmph
;
520 struct interface
*ifp
;
521 struct zebra_if
*zif
;
522 char addr_str
[INET6_ADDRSTRLEN
];
524 inet_ntop (AF_INET6
, &from
->sin6_addr
, addr_str
, INET6_ADDRSTRLEN
);
526 /* Interface search. */
527 ifp
= if_lookup_by_index_per_ns (zns
, ifindex
);
530 zlog_warn ("RA/RS received on unknown IF %u from %s",
535 if (IS_ZEBRA_DEBUG_PACKET
)
536 zlog_debug ("%s(%u): Rx RA/RS len %d from %s",
537 ifp
->name
, ifp
->ifindex
, len
, addr_str
);
539 if (if_is_loopback (ifp
) ||
540 CHECK_FLAG(ifp
->status
, ZEBRA_INTERFACE_VRF_LOOPBACK
))
543 /* Check interface configuration. */
545 if (! zif
->rtadv
.AdvSendAdvertisements
)
548 /* ICMP message length check. */
549 if (len
< sizeof (struct icmp6_hdr
))
551 zlog_warn ("%s(%u): Rx RA with Invalid ICMPV6 packet length %d",
552 ifp
->name
, ifp
->ifindex
, len
);
556 icmph
= (struct icmp6_hdr
*) buf
;
558 /* ICMP message type check. */
559 if (icmph
->icmp6_type
!= ND_ROUTER_SOLICIT
&&
560 icmph
->icmp6_type
!= ND_ROUTER_ADVERT
)
562 zlog_warn ("%s(%u): Rx RA - Unwanted ICMPV6 message type %d",
563 ifp
->name
, ifp
->ifindex
, icmph
->icmp6_type
);
567 /* Hoplimit check. */
568 if (hoplimit
>= 0 && hoplimit
!= 255)
570 zlog_warn ("%s(%u): Rx RA - Invalid hoplimit %d",
571 ifp
->name
, ifp
->ifindex
, hoplimit
);
575 /* Check ICMP message type. */
576 if (icmph
->icmp6_type
== ND_ROUTER_SOLICIT
)
577 rtadv_process_solicit (ifp
);
578 else if (icmph
->icmp6_type
== ND_ROUTER_ADVERT
)
579 rtadv_process_advert (buf
, len
, ifp
, from
);
585 rtadv_read (struct thread
*thread
)
589 u_char buf
[RTADV_MSG_SIZE
];
590 struct sockaddr_in6 from
;
591 ifindex_t ifindex
= 0;
593 struct zebra_ns
*zns
= THREAD_ARG (thread
);
595 sock
= THREAD_FD (thread
);
596 zns
->rtadv
.ra_read
= NULL
;
598 /* Register myself. */
599 rtadv_event (zns
, RTADV_READ
, sock
);
601 len
= rtadv_recv_packet (zns
, sock
, buf
, sizeof (buf
), &from
, &ifindex
, &hoplimit
);
605 zlog_warn ("RA/RS recv failed, socket %u error %s",
606 sock
, safe_strerror (errno
));
610 rtadv_process_packet (buf
, (unsigned)len
, ifindex
, hoplimit
, &from
, zns
);
616 rtadv_make_socket (void)
620 struct icmp6_filter filter
;
622 if ( zserv_privs
.change (ZPRIVS_RAISE
) )
623 zlog_err ("rtadv_make_socket: could not raise privs, %s",
624 safe_strerror (errno
) );
626 sock
= socket (AF_INET6
, SOCK_RAW
, IPPROTO_ICMPV6
);
628 if ( zserv_privs
.change (ZPRIVS_LOWER
) )
629 zlog_err ("rtadv_make_socket: could not lower privs, %s",
630 safe_strerror (errno
) );
638 ret
= setsockopt_ipv6_pktinfo (sock
, 1);
644 ret
= setsockopt_ipv6_multicast_loop (sock
, 0);
650 ret
= setsockopt_ipv6_unicast_hops (sock
, 255);
656 ret
= setsockopt_ipv6_multicast_hops (sock
, 255);
662 ret
= setsockopt_ipv6_hoplimit (sock
, 1);
669 ICMP6_FILTER_SETBLOCKALL(&filter
);
670 ICMP6_FILTER_SETPASS (ND_ROUTER_SOLICIT
, &filter
);
671 ICMP6_FILTER_SETPASS (ND_ROUTER_ADVERT
, &filter
);
673 ret
= setsockopt (sock
, IPPROTO_ICMPV6
, ICMP6_FILTER
, &filter
,
674 sizeof (struct icmp6_filter
));
677 zlog_info ("ICMP6_FILTER set fail: %s", safe_strerror (errno
));
684 static struct rtadv_prefix
*
685 rtadv_prefix_new (void)
687 return XCALLOC (MTYPE_RTADV_PREFIX
, sizeof (struct rtadv_prefix
));
691 rtadv_prefix_free (struct rtadv_prefix
*rtadv_prefix
)
693 XFREE (MTYPE_RTADV_PREFIX
, rtadv_prefix
);
696 static struct rtadv_prefix
*
697 rtadv_prefix_lookup (struct list
*rplist
, struct prefix_ipv6
*p
)
699 struct listnode
*node
;
700 struct rtadv_prefix
*rprefix
;
702 for (ALL_LIST_ELEMENTS_RO (rplist
, node
, rprefix
))
703 if (prefix_same ((struct prefix
*) &rprefix
->prefix
, (struct prefix
*) p
))
708 static struct rtadv_prefix
*
709 rtadv_prefix_get (struct list
*rplist
, struct prefix_ipv6
*p
)
711 struct rtadv_prefix
*rprefix
;
713 rprefix
= rtadv_prefix_lookup (rplist
, p
);
717 rprefix
= rtadv_prefix_new ();
718 memcpy (&rprefix
->prefix
, p
, sizeof (struct prefix_ipv6
));
719 listnode_add (rplist
, rprefix
);
725 rtadv_prefix_set (struct zebra_if
*zif
, struct rtadv_prefix
*rp
)
727 struct rtadv_prefix
*rprefix
;
729 rprefix
= rtadv_prefix_get (zif
->rtadv
.AdvPrefixList
, &rp
->prefix
);
731 /* Set parameters. */
732 rprefix
->AdvValidLifetime
= rp
->AdvValidLifetime
;
733 rprefix
->AdvPreferredLifetime
= rp
->AdvPreferredLifetime
;
734 rprefix
->AdvOnLinkFlag
= rp
->AdvOnLinkFlag
;
735 rprefix
->AdvAutonomousFlag
= rp
->AdvAutonomousFlag
;
736 rprefix
->AdvRouterAddressFlag
= rp
->AdvRouterAddressFlag
;
740 rtadv_prefix_reset (struct zebra_if
*zif
, struct rtadv_prefix
*rp
)
742 struct rtadv_prefix
*rprefix
;
744 rprefix
= rtadv_prefix_lookup (zif
->rtadv
.AdvPrefixList
, &rp
->prefix
);
747 listnode_delete (zif
->rtadv
.AdvPrefixList
, (void *) rprefix
);
748 rtadv_prefix_free (rprefix
);
756 ipv6_nd_suppress_ra_set (struct interface
*ifp
, ipv6_nd_suppress_ra_status status
)
758 struct zebra_if
*zif
;
759 struct zebra_vrf
*zvrf
;
760 struct zebra_ns
*zns
;
763 zvrf
= vrf_info_lookup (ifp
->vrf_id
);
766 if (status
== RA_SUPPRESS
)
768 /* RA is currently enabled */
769 if (zif
->rtadv
.AdvSendAdvertisements
)
771 zif
->rtadv
.AdvSendAdvertisements
= 0;
772 zif
->rtadv
.AdvIntervalTimer
= 0;
773 zns
->rtadv
.adv_if_count
--;
775 if_leave_all_router (zns
->rtadv
.sock
, ifp
);
777 if (zns
->rtadv
.adv_if_count
== 0)
778 rtadv_event (zns
, RTADV_STOP
, 0);
783 if (! zif
->rtadv
.AdvSendAdvertisements
)
785 zif
->rtadv
.AdvSendAdvertisements
= 1;
786 zif
->rtadv
.AdvIntervalTimer
= 0;
787 zns
->rtadv
.adv_if_count
++;
789 if (zif
->rtadv
.MaxRtrAdvInterval
>= 1000)
791 /* Enable Fast RA only when RA interval is in secs */
792 zif
->rtadv
.inFastRexmit
= 1;
793 zif
->rtadv
.NumFastReXmitsRemain
= RTADV_NUM_FAST_REXMITS
;
796 if_join_all_router (zns
->rtadv
.sock
, ifp
);
798 if (zns
->rtadv
.adv_if_count
== 1)
799 rtadv_event (zns
, RTADV_START
, zns
->rtadv
.sock
);
805 * Handle client (BGP) message to enable or disable IPv6 RA on an interface.
806 * Note that while the client could request RA on an interface on which the
807 * operator has not enabled RA, RA won't be disabled upon client request
808 * if the operator has explicitly enabled RA. The enable request can also
809 * specify a RA interval (in seconds).
812 zebra_interface_radv_set (struct zserv
*client
, int sock
, u_short length
,
813 struct zebra_vrf
*zvrf
, int enable
)
816 unsigned int ifindex
;
817 struct interface
*ifp
;
818 struct zebra_if
*zif
;
823 /* Get interface index and RA interval. */
824 ifindex
= stream_getl (s
);
825 ra_interval
= stream_getl (s
);
827 if (IS_ZEBRA_DEBUG_EVENT
)
828 zlog_debug("%u: IF %u RA %s from client %s, interval %ds",
829 zvrf
->vrf_id
, ifindex
, enable
? "enable" : "disable",
830 zebra_route_string(client
->proto
), ra_interval
);
832 /* Locate interface and check VRF match. */
833 ifp
= if_lookup_by_index_per_ns (zebra_ns_lookup (NS_DEFAULT
), ifindex
);
836 zlog_warn("%u: IF %u RA %s client %s - interface unknown",
837 zvrf
->vrf_id
, ifindex
, enable
? "enable" : "disable",
838 zebra_route_string(client
->proto
));
841 if (ifp
->vrf_id
!= zvrf
->vrf_id
)
843 zlog_warn("%u: IF %u RA %s client %s - VRF mismatch, IF VRF %u",
844 zvrf
->vrf_id
, ifindex
, enable
? "enable" : "disable",
845 zebra_route_string(client
->proto
), ifp
->vrf_id
);
852 ipv6_nd_suppress_ra_set (ifp
, RA_ENABLE
);
854 (ra_interval
* 1000) < zif
->rtadv
.MaxRtrAdvInterval
)
855 zif
->rtadv
.MaxRtrAdvInterval
= ra_interval
* 1000;
859 if (!zif
->rtadv
.configured
)
861 zif
->rtadv
.MaxRtrAdvInterval
= RTADV_MAX_RTR_ADV_INTERVAL
;
862 ipv6_nd_suppress_ra_set (ifp
, RA_SUPPRESS
);
867 DEFUN (ipv6_nd_suppress_ra
,
868 ipv6_nd_suppress_ra_cmd
,
869 "ipv6 nd suppress-ra",
870 "Interface IPv6 config commands\n"
871 "Neighbor discovery\n"
872 "Suppress Router Advertisement\n")
874 struct interface
*ifp
;
875 struct zebra_if
*zif
;
879 if (if_is_loopback (ifp
) ||
880 CHECK_FLAG(ifp
->status
, ZEBRA_INTERFACE_VRF_LOOPBACK
))
882 vty_out (vty
, "Cannot configure IPv6 Router Advertisements on this interface%s", VTY_NEWLINE
);
886 ipv6_nd_suppress_ra_set (ifp
, RA_SUPPRESS
);
888 zif
->rtadv
.configured
= 0;
892 DEFUN (no_ipv6_nd_suppress_ra
,
893 no_ipv6_nd_suppress_ra_cmd
,
894 "no ipv6 nd suppress-ra",
896 "Interface IPv6 config commands\n"
897 "Neighbor discovery\n"
898 "Suppress Router Advertisement\n")
900 struct interface
*ifp
;
901 struct zebra_if
*zif
;
905 if (if_is_loopback (ifp
) ||
906 CHECK_FLAG(ifp
->status
, ZEBRA_INTERFACE_VRF_LOOPBACK
))
908 vty_out (vty
, "Cannot configure IPv6 Router Advertisements on this interface%s", VTY_NEWLINE
);
912 ipv6_nd_suppress_ra_set (ifp
, RA_ENABLE
);
914 zif
->rtadv
.configured
= 1;
918 DEFUN (ipv6_nd_ra_interval_msec
,
919 ipv6_nd_ra_interval_msec_cmd
,
920 "ipv6 nd ra-interval msec (70-1800000)",
921 "Interface IPv6 config commands\n"
922 "Neighbor discovery\n"
923 "Router Advertisement interval\n"
924 "Router Advertisement interval in milliseconds\n")
928 struct interface
*ifp
= (struct interface
*) vty
->index
;
929 struct zebra_if
*zif
= ifp
->info
;
930 struct zebra_vrf
*zvrf
= vrf_info_lookup (ifp
->vrf_id
);
931 struct zebra_ns
*zns
;
934 VTY_GET_INTEGER_RANGE ("router advertisement interval", interval
, argv
[idx_number
]->arg
, 70, 1800000);
935 if ((zif
->rtadv
.AdvDefaultLifetime
!= -1 && interval
> (unsigned)zif
->rtadv
.AdvDefaultLifetime
* 1000))
937 vty_out (vty
, "This ra-interval would conflict with configured ra-lifetime!%s", VTY_NEWLINE
);
941 if (zif
->rtadv
.MaxRtrAdvInterval
% 1000)
942 zns
->rtadv
.adv_msec_if_count
--;
945 zns
->rtadv
.adv_msec_if_count
++;
947 zif
->rtadv
.MaxRtrAdvInterval
= interval
;
948 zif
->rtadv
.MinRtrAdvInterval
= 0.33 * interval
;
949 zif
->rtadv
.AdvIntervalTimer
= 0;
954 DEFUN (ipv6_nd_ra_interval
,
955 ipv6_nd_ra_interval_cmd
,
956 "ipv6 nd ra-interval (1-1800)",
957 "Interface IPv6 config commands\n"
958 "Neighbor discovery\n"
959 "Router Advertisement interval\n"
960 "Router Advertisement interval in seconds\n")
964 struct interface
*ifp
= (struct interface
*) vty
->index
;
965 struct zebra_if
*zif
= ifp
->info
;
966 struct zebra_vrf
*zvrf
= vrf_info_lookup (ifp
->vrf_id
);
967 struct zebra_ns
*zns
;
970 VTY_GET_INTEGER_RANGE ("router advertisement interval", interval
, argv
[idx_number
]->arg
, 1, 1800);
971 if ((zif
->rtadv
.AdvDefaultLifetime
!= -1 && interval
> (unsigned)zif
->rtadv
.AdvDefaultLifetime
))
973 vty_out (vty
, "This ra-interval would conflict with configured ra-lifetime!%s", VTY_NEWLINE
);
977 if (zif
->rtadv
.MaxRtrAdvInterval
% 1000)
978 zns
->rtadv
.adv_msec_if_count
--;
980 /* convert to milliseconds */
981 interval
= interval
* 1000;
983 zif
->rtadv
.MaxRtrAdvInterval
= interval
;
984 zif
->rtadv
.MinRtrAdvInterval
= 0.33 * interval
;
985 zif
->rtadv
.AdvIntervalTimer
= 0;
991 * CHECK ME - The following ALIASes need to be implemented in this DEFUN
992 * "no ipv6 nd ra-interval <1-1800>",
994 * "Interface IPv6 config commands\n"
995 * "Neighbor discovery\n"
996 * "Router Advertisement interval\n"
998 * "no ipv6 nd ra-interval msec <1-1800000>",
1000 * "Interface IPv6 config commands\n"
1001 * "Neighbor discovery\n"
1002 * "Router Advertisement interval\n"
1003 * "Router Advertisement interval in milliseconds\n"
1006 DEFUN (no_ipv6_nd_ra_interval
,
1007 no_ipv6_nd_ra_interval_cmd
,
1008 "no ipv6 nd ra-interval",
1010 "Interface IPv6 config commands\n"
1011 "Neighbor discovery\n"
1012 "Router Advertisement interval\n")
1014 struct interface
*ifp
;
1015 struct zebra_if
*zif
;
1016 struct zebra_vrf
*zvrf
;
1017 struct zebra_ns
*zns
;
1019 ifp
= (struct interface
*) vty
->index
;
1021 zvrf
= vrf_info_lookup (ifp
->vrf_id
);
1024 if (zif
->rtadv
.MaxRtrAdvInterval
% 1000)
1025 zns
->rtadv
.adv_msec_if_count
--;
1027 zif
->rtadv
.MaxRtrAdvInterval
= RTADV_MAX_RTR_ADV_INTERVAL
;
1028 zif
->rtadv
.MinRtrAdvInterval
= RTADV_MIN_RTR_ADV_INTERVAL
;
1029 zif
->rtadv
.AdvIntervalTimer
= zif
->rtadv
.MaxRtrAdvInterval
;
1036 DEFUN (ipv6_nd_ra_lifetime
,
1037 ipv6_nd_ra_lifetime_cmd
,
1038 "ipv6 nd ra-lifetime (0-9000)",
1039 "Interface IPv6 config commands\n"
1040 "Neighbor discovery\n"
1042 "Router lifetime in seconds (0 stands for a non-default gw)\n")
1046 struct interface
*ifp
;
1047 struct zebra_if
*zif
;
1049 ifp
= (struct interface
*) vty
->index
;
1052 VTY_GET_INTEGER_RANGE ("router lifetime", lifetime
, argv
[idx_number
]->arg
, 0, 9000);
1054 /* The value to be placed in the Router Lifetime field
1055 * of Router Advertisements sent from the interface,
1056 * in seconds. MUST be either zero or between
1057 * MaxRtrAdvInterval and 9000 seconds. -- RFC4861, 6.2.1 */
1058 if ((lifetime
!= 0 && lifetime
* 1000 < zif
->rtadv
.MaxRtrAdvInterval
))
1060 vty_out (vty
, "This ra-lifetime would conflict with configured ra-interval%s", VTY_NEWLINE
);
1064 zif
->rtadv
.AdvDefaultLifetime
= lifetime
;
1070 * CHECK ME - The following ALIASes need to be implemented in this DEFUN
1071 * "no ipv6 nd ra-lifetime <0-9000>",
1073 * "Interface IPv6 config commands\n"
1074 * "Neighbor discovery\n"
1075 * "Router lifetime\n"
1076 * "Router lifetime in seconds (0 stands for a non-default gw)\n"
1079 DEFUN (no_ipv6_nd_ra_lifetime
,
1080 no_ipv6_nd_ra_lifetime_cmd
,
1081 "no ipv6 nd ra-lifetime",
1083 "Interface IPv6 config commands\n"
1084 "Neighbor discovery\n"
1085 "Router lifetime\n")
1087 struct interface
*ifp
;
1088 struct zebra_if
*zif
;
1090 ifp
= (struct interface
*) vty
->index
;
1093 zif
->rtadv
.AdvDefaultLifetime
= -1;
1099 DEFUN (ipv6_nd_reachable_time
,
1100 ipv6_nd_reachable_time_cmd
,
1101 "ipv6 nd reachable-time (1-3600000)",
1102 "Interface IPv6 config commands\n"
1103 "Neighbor discovery\n"
1105 "Reachable time in milliseconds\n")
1108 struct interface
*ifp
= (struct interface
*) vty
->index
;
1109 struct zebra_if
*zif
= ifp
->info
;
1110 VTY_GET_INTEGER_RANGE ("reachable time", zif
->rtadv
.AdvReachableTime
, argv
[idx_number
]->arg
, 1, RTADV_MAX_REACHABLE_TIME
);
1115 * CHECK ME - The following ALIASes need to be implemented in this DEFUN
1116 * "no ipv6 nd reachable-time <1-3600000>",
1118 * "Interface IPv6 config commands\n"
1119 * "Neighbor discovery\n"
1120 * "Reachable time\n"
1121 * "Reachable time in milliseconds\n"
1124 DEFUN (no_ipv6_nd_reachable_time
,
1125 no_ipv6_nd_reachable_time_cmd
,
1126 "no ipv6 nd reachable-time",
1128 "Interface IPv6 config commands\n"
1129 "Neighbor discovery\n"
1132 struct interface
*ifp
;
1133 struct zebra_if
*zif
;
1135 ifp
= (struct interface
*) vty
->index
;
1138 zif
->rtadv
.AdvReachableTime
= 0;
1144 DEFUN (ipv6_nd_homeagent_preference
,
1145 ipv6_nd_homeagent_preference_cmd
,
1146 "ipv6 nd home-agent-preference (0-65535)",
1147 "Interface IPv6 config commands\n"
1148 "Neighbor discovery\n"
1149 "Home Agent preference\n"
1150 "preference value (default is 0, least preferred)\n")
1153 struct interface
*ifp
= (struct interface
*) vty
->index
;
1154 struct zebra_if
*zif
= ifp
->info
;
1155 VTY_GET_INTEGER_RANGE ("home agent preference", zif
->rtadv
.HomeAgentPreference
, argv
[idx_number
]->arg
, 0, 65535);
1160 * CHECK ME - The following ALIASes need to be implemented in this DEFUN
1161 * "no ipv6 nd home-agent-preference <0-65535>",
1163 * "Interface IPv6 config commands\n"
1164 * "Neighbor discovery\n"
1165 * "Home Agent preference\n"
1166 * "preference value (default is 0, least preferred)\n"
1169 DEFUN (no_ipv6_nd_homeagent_preference
,
1170 no_ipv6_nd_homeagent_preference_cmd
,
1171 "no ipv6 nd home-agent-preference",
1173 "Interface IPv6 config commands\n"
1174 "Neighbor discovery\n"
1175 "Home Agent preference\n")
1177 struct interface
*ifp
;
1178 struct zebra_if
*zif
;
1180 ifp
= (struct interface
*) vty
->index
;
1183 zif
->rtadv
.HomeAgentPreference
= 0;
1189 DEFUN (ipv6_nd_homeagent_lifetime
,
1190 ipv6_nd_homeagent_lifetime_cmd
,
1191 "ipv6 nd home-agent-lifetime (0-65520)",
1192 "Interface IPv6 config commands\n"
1193 "Neighbor discovery\n"
1194 "Home Agent lifetime\n"
1195 "Home Agent lifetime in seconds (0 to track ra-lifetime)\n")
1198 struct interface
*ifp
= (struct interface
*) vty
->index
;
1199 struct zebra_if
*zif
= ifp
->info
;
1200 VTY_GET_INTEGER_RANGE ("home agent lifetime", zif
->rtadv
.HomeAgentLifetime
, argv
[idx_number
]->arg
, 0, RTADV_MAX_HALIFETIME
);
1205 * CHECK ME - The following ALIASes need to be implemented in this DEFUN
1206 * "no ipv6 nd home-agent-lifetime <0-65520>",
1208 * "Interface IPv6 config commands\n"
1209 * "Neighbor discovery\n"
1210 * "Home Agent lifetime\n"
1211 * "Home Agent lifetime in seconds (0 to track ra-lifetime)\n"
1214 DEFUN (no_ipv6_nd_homeagent_lifetime
,
1215 no_ipv6_nd_homeagent_lifetime_cmd
,
1216 "no ipv6 nd home-agent-lifetime",
1218 "Interface IPv6 config commands\n"
1219 "Neighbor discovery\n"
1220 "Home Agent lifetime\n")
1222 struct interface
*ifp
;
1223 struct zebra_if
*zif
;
1225 ifp
= (struct interface
*) vty
->index
;
1228 zif
->rtadv
.HomeAgentLifetime
= -1;
1234 DEFUN (ipv6_nd_managed_config_flag
,
1235 ipv6_nd_managed_config_flag_cmd
,
1236 "ipv6 nd managed-config-flag",
1237 "Interface IPv6 config commands\n"
1238 "Neighbor discovery\n"
1239 "Managed address configuration flag\n")
1241 struct interface
*ifp
;
1242 struct zebra_if
*zif
;
1244 ifp
= (struct interface
*) vty
->index
;
1247 zif
->rtadv
.AdvManagedFlag
= 1;
1252 DEFUN (no_ipv6_nd_managed_config_flag
,
1253 no_ipv6_nd_managed_config_flag_cmd
,
1254 "no ipv6 nd managed-config-flag",
1256 "Interface IPv6 config commands\n"
1257 "Neighbor discovery\n"
1258 "Managed address configuration flag\n")
1260 struct interface
*ifp
;
1261 struct zebra_if
*zif
;
1263 ifp
= (struct interface
*) vty
->index
;
1266 zif
->rtadv
.AdvManagedFlag
= 0;
1271 DEFUN (ipv6_nd_homeagent_config_flag
,
1272 ipv6_nd_homeagent_config_flag_cmd
,
1273 "ipv6 nd home-agent-config-flag",
1274 "Interface IPv6 config commands\n"
1275 "Neighbor discovery\n"
1276 "Home Agent configuration flag\n")
1278 struct interface
*ifp
;
1279 struct zebra_if
*zif
;
1281 ifp
= (struct interface
*) vty
->index
;
1284 zif
->rtadv
.AdvHomeAgentFlag
= 1;
1289 DEFUN (no_ipv6_nd_homeagent_config_flag
,
1290 no_ipv6_nd_homeagent_config_flag_cmd
,
1291 "no ipv6 nd home-agent-config-flag",
1293 "Interface IPv6 config commands\n"
1294 "Neighbor discovery\n"
1295 "Home Agent configuration flag\n")
1297 struct interface
*ifp
;
1298 struct zebra_if
*zif
;
1300 ifp
= (struct interface
*) vty
->index
;
1303 zif
->rtadv
.AdvHomeAgentFlag
= 0;
1308 DEFUN (ipv6_nd_adv_interval_config_option
,
1309 ipv6_nd_adv_interval_config_option_cmd
,
1310 "ipv6 nd adv-interval-option",
1311 "Interface IPv6 config commands\n"
1312 "Neighbor discovery\n"
1313 "Advertisement Interval Option\n")
1315 struct interface
*ifp
;
1316 struct zebra_if
*zif
;
1318 ifp
= (struct interface
*) vty
->index
;
1321 zif
->rtadv
.AdvIntervalOption
= 1;
1326 DEFUN (no_ipv6_nd_adv_interval_config_option
,
1327 no_ipv6_nd_adv_interval_config_option_cmd
,
1328 "no ipv6 nd adv-interval-option",
1330 "Interface IPv6 config commands\n"
1331 "Neighbor discovery\n"
1332 "Advertisement Interval Option\n")
1334 struct interface
*ifp
;
1335 struct zebra_if
*zif
;
1337 ifp
= (struct interface
*) vty
->index
;
1340 zif
->rtadv
.AdvIntervalOption
= 0;
1345 DEFUN (ipv6_nd_other_config_flag
,
1346 ipv6_nd_other_config_flag_cmd
,
1347 "ipv6 nd other-config-flag",
1348 "Interface IPv6 config commands\n"
1349 "Neighbor discovery\n"
1350 "Other statefull configuration flag\n")
1352 struct interface
*ifp
;
1353 struct zebra_if
*zif
;
1355 ifp
= (struct interface
*) vty
->index
;
1358 zif
->rtadv
.AdvOtherConfigFlag
= 1;
1363 DEFUN (no_ipv6_nd_other_config_flag
,
1364 no_ipv6_nd_other_config_flag_cmd
,
1365 "no ipv6 nd other-config-flag",
1367 "Interface IPv6 config commands\n"
1368 "Neighbor discovery\n"
1369 "Other statefull configuration flag\n")
1371 struct interface
*ifp
;
1372 struct zebra_if
*zif
;
1374 ifp
= (struct interface
*) vty
->index
;
1377 zif
->rtadv
.AdvOtherConfigFlag
= 0;
1383 * CHECK ME - The following ALIASes need to be implemented in this DEFUN
1384 * "ipv6 nd prefix X:X::X:X/M (no-autoconfig|)",
1385 * "Interface IPv6 config commands\n"
1386 * "Neighbor discovery\n"
1387 * "Prefix information\n"
1389 * "Do not use prefix for autoconfiguration\n"
1391 * "ipv6 nd prefix X:X::X:X/M (<0-4294967295>|infinite) "
1392 * "(<0-4294967295>|infinite)",
1393 * "Interface IPv6 config commands\n"
1394 * "Neighbor discovery\n"
1395 * "Prefix information\n"
1397 * "Valid lifetime in seconds\n"
1398 * "Infinite valid lifetime\n"
1399 * "Preferred lifetime in seconds\n"
1400 * "Infinite preferred lifetime\n"
1402 * "ipv6 nd prefix X:X::X:X/M (off-link|) (no-autoconfig|)",
1403 * "Interface IPv6 config commands\n"
1404 * "Neighbor discovery\n"
1405 * "Prefix information\n"
1407 * "Do not use prefix for onlink determination\n"
1408 * "Do not use prefix for autoconfiguration\n"
1410 * "ipv6 nd prefix X:X::X:X/M (router-address|)",
1411 * "Interface IPv6 config commands\n"
1412 * "Neighbor discovery\n"
1413 * "Prefix information\n"
1415 * "Set Router Address flag\n"
1417 * "ipv6 nd prefix X:X::X:X/M (no-autoconfig|) (off-link|)",
1418 * "Interface IPv6 config commands\n"
1419 * "Neighbor discovery\n"
1420 * "Prefix information\n"
1422 * "Do not use prefix for autoconfiguration\n"
1423 * "Do not use prefix for onlink determination\n"
1425 * "ipv6 nd prefix X:X::X:X/M (<0-4294967295>|infinite) "
1426 * "(<0-4294967295>|infinite) (router-address|)",
1427 * "Interface IPv6 config commands\n"
1428 * "Neighbor discovery\n"
1429 * "Prefix information\n"
1431 * "Valid lifetime in seconds\n"
1432 * "Infinite valid lifetime\n"
1433 * "Preferred lifetime in seconds\n"
1434 * "Infinite preferred lifetime\n"
1435 * "Set Router Address flag\n"
1437 * "ipv6 nd prefix X:X::X:X/M",
1438 * "Interface IPv6 config commands\n"
1439 * "Neighbor discovery\n"
1440 * "Prefix information\n"
1443 * "ipv6 nd prefix X:X::X:X/M (<0-4294967295>|infinite) "
1444 * "(<0-4294967295>|infinite) (off-link|) (no-autoconfig|)",
1445 * "Interface IPv6 config commands\n"
1446 * "Neighbor discovery\n"
1447 * "Prefix information\n"
1449 * "Valid lifetime in seconds\n"
1450 * "Infinite valid lifetime\n"
1451 * "Preferred lifetime in seconds\n"
1452 * "Infinite preferred lifetime\n"
1453 * "Do not use prefix for onlink determination\n"
1454 * "Do not use prefix for autoconfiguration\n"
1456 * "ipv6 nd prefix X:X::X:X/M (<0-4294967295>|infinite) "
1457 * "(<0-4294967295>|infinite) (no-autoconfig|) (off-link|)",
1458 * "Interface IPv6 config commands\n"
1459 * "Neighbor discovery\n"
1460 * "Prefix information\n"
1462 * "Valid lifetime in seconds\n"
1463 * "Infinite valid lifetime\n"
1464 * "Preferred lifetime in seconds\n"
1465 * "Infinite preferred lifetime\n"
1466 * "Do not use prefix for autoconfiguration\n"
1467 * "Do not use prefix for onlink determination\n"
1469 * "ipv6 nd prefix X:X::X:X/M (off-link|)",
1470 * "Interface IPv6 config commands\n"
1471 * "Neighbor discovery\n"
1472 * "Prefix information\n"
1474 * "Do not use prefix for onlink determination\n"
1476 * "ipv6 nd prefix X:X::X:X/M (<0-4294967295>|infinite) "
1477 * "(<0-4294967295>|infinite) (no-autoconfig|)",
1478 * "Interface IPv6 config commands\n"
1479 * "Neighbor discovery\n"
1480 * "Prefix information\n"
1482 * "Valid lifetime in seconds\n"
1483 * "Infinite valid lifetime\n"
1484 * "Preferred lifetime in seconds\n"
1485 * "Infinite preferred lifetime\n"
1486 * "Do not use prefix for autoconfiguration"
1488 * "ipv6 nd prefix X:X::X:X/M (<0-4294967295>|infinite) "
1489 * "(<0-4294967295>|infinite) (off-link|)",
1490 * "Interface IPv6 config commands\n"
1491 * "Neighbor discovery\n"
1492 * "Prefix information\n"
1494 * "Valid lifetime in seconds\n"
1495 * "Infinite valid lifetime\n"
1496 * "Preferred lifetime in seconds\n"
1497 * "Infinite preferred lifetime\n"
1498 * "Do not use prefix for onlink determination\n"
1500 * "ipv6 nd prefix X:X::X:X/M (<0-4294967295>|infinite) "
1501 * "(<0-4294967295>|infinite) (no-autoconfig|) (off-link|) (router-address|)",
1502 * "Interface IPv6 config commands\n"
1503 * "Neighbor discovery\n"
1504 * "Prefix information\n"
1506 * "Valid lifetime in seconds\n"
1507 * "Infinite valid lifetime\n"
1508 * "Preferred lifetime in seconds\n"
1509 * "Infinite preferred lifetime\n"
1510 * "Do not use prefix for autoconfiguration\n"
1511 * "Do not use prefix for onlink determination\n"
1512 * "Set Router Address flag\n"
1515 DEFUN (ipv6_nd_prefix
,
1517 "ipv6 nd prefix X:X::X:X/M <(0-4294967295)|infinite> <(0-4294967295)|infinite> <off-link> <no-autoconfig> <router-address>",
1518 "Interface IPv6 config commands\n"
1519 "Neighbor discovery\n"
1520 "Prefix information\n"
1522 "Valid lifetime in seconds\n"
1523 "Infinite valid lifetime\n"
1524 "Preferred lifetime in seconds\n"
1525 "Infinite preferred lifetime\n"
1526 "Do not use prefix for onlink determination\n"
1527 "Do not use prefix for autoconfiguration\n"
1528 "Set Router Address flag\n")
1530 int idx_ipv6_prefixlen
= 3;
1531 int idx_number_infinite
= 4;
1532 int idx_number_infinite_2
= 5;
1536 struct interface
*ifp
;
1537 struct zebra_if
*zebra_if
;
1538 struct rtadv_prefix rp
;
1540 ifp
= (struct interface
*) vty
->index
;
1541 zebra_if
= ifp
->info
;
1543 ret
= str2prefix_ipv6 (argv
[idx_ipv6_prefixlen
]->arg
, &rp
.prefix
);
1546 vty_out (vty
, "Malformed IPv6 prefix%s", VTY_NEWLINE
);
1549 apply_mask_ipv6 (&rp
.prefix
); /* RFC4861 4.6.2 */
1550 rp
.AdvOnLinkFlag
= 1;
1551 rp
.AdvAutonomousFlag
= 1;
1552 rp
.AdvRouterAddressFlag
= 0;
1553 rp
.AdvValidLifetime
= RTADV_VALID_LIFETIME
;
1554 rp
.AdvPreferredLifetime
= RTADV_PREFERRED_LIFETIME
;
1558 if ((isdigit((unsigned char)argv
[idx_number_infinite
]->arg
[0]))
1559 || strncmp (argv
[idx_number_infinite
]->arg
, "i", 1) == 0)
1561 if ( strncmp (argv
[idx_number_infinite
]->arg
, "i", 1) == 0)
1562 rp
.AdvValidLifetime
= UINT32_MAX
;
1564 rp
.AdvValidLifetime
= (u_int32_t
) strtoll (argv
[idx_number_infinite
]->arg
,
1567 if ( strncmp (argv
[idx_number_infinite_2
]->arg
, "i", 1) == 0)
1568 rp
.AdvPreferredLifetime
= UINT32_MAX
;
1570 rp
.AdvPreferredLifetime
= (u_int32_t
) strtoll (argv
[idx_number_infinite_2
]->arg
,
1573 if (rp
.AdvPreferredLifetime
> rp
.AdvValidLifetime
)
1575 vty_out (vty
, "Invalid preferred lifetime%s", VTY_NEWLINE
);
1578 cursor
= cursor
+ 2;
1582 for (i
= cursor
; i
< argc
; i
++)
1584 if (strncmp (argv
[i
], "of", 2) == 0)
1585 rp
.AdvOnLinkFlag
= 0;
1586 if (strncmp (argv
[i
], "no", 2) == 0)
1587 rp
.AdvAutonomousFlag
= 0;
1588 if (strncmp (argv
[i
], "ro", 2) == 0)
1589 rp
.AdvRouterAddressFlag
= 1;
1594 rtadv_prefix_set (zebra_if
, &rp
);
1613 * CHECK ME - The following ALIASes need to be implemented in this DEFUN
1614 * "no ipv6 nd prefix X:X::X:X/M (<0-4294967295>|infinite) (<0-4294967295>|infinite) (no-autoconfig|) (off-link|)",
1616 * "Interface IPv6 config commands\n"
1617 * "Neighbor discovery\n"
1618 * "Prefix information\n"
1620 * "Valid lifetime in seconds\n"
1621 * "Infinite valid lifetime\n"
1622 * "Preferred lifetime in seconds\n"
1623 * "Infinite preferred lifetime\n"
1624 * "Do not use prefix for autoconfiguration\n"
1625 * "Do not use prefix for onlink determination\n"
1627 * "no ipv6 nd prefix X:X::X:X/M (<0-4294967295>|infinite) (<0-4294967295>|infinite) (no-autoconfig|)",
1629 * "Interface IPv6 config commands\n"
1630 * "Neighbor discovery\n"
1631 * "Prefix information\n"
1633 * "Valid lifetime in seconds\n"
1634 * "Infinite valid lifetime\n"
1635 * "Preferred lifetime in seconds\n"
1636 * "Infinite preferred lifetime\n"
1637 * "Do not use prefix for autoconfiguration"
1639 * "no ipv6 nd prefix X:X::X:X/M (<0-4294967295>|infinite) (<0-4294967295>|infinite) (off-link|) (no-autoconfig|) (router-address|)",
1641 * "Interface IPv6 config commands\n"
1642 * "Neighbor discovery\n"
1643 * "Prefix information\n"
1645 * "Valid lifetime in seconds\n"
1646 * "Infinite valid lifetime\n"
1647 * "Preferred lifetime in seconds\n"
1648 * "Infinite preferred lifetime\n"
1649 * "Do not use prefix for onlink determination\n"
1650 * "Do not use prefix for autoconfiguration\n"
1651 * "Set Router Address flag\n"
1653 * "no ipv6 nd prefix X:X::X:X/M (<0-4294967295>|infinite) (<0-4294967295>|infinite) (off-link|)",
1655 * "Interface IPv6 config commands\n"
1656 * "Neighbor discovery\n"
1657 * "Prefix information\n"
1659 * "Valid lifetime in seconds\n"
1660 * "Infinite valid lifetime\n"
1661 * "Preferred lifetime in seconds\n"
1662 * "Infinite preferred lifetime\n"
1663 * "Do not use prefix for onlink determination\n"
1665 * "no ipv6 nd prefix X:X::X:X/M (<0-4294967295>|infinite) (<0-4294967295>|infinite) (no-autoconfig|) (off-link|) (router-address|)",
1667 * "Interface IPv6 config commands\n"
1668 * "Neighbor discovery\n"
1669 * "Prefix information\n"
1671 * "Valid lifetime in seconds\n"
1672 * "Infinite valid lifetime\n"
1673 * "Preferred lifetime in seconds\n"
1674 * "Infinite preferred lifetime\n"
1675 * "Do not use prefix for autoconfiguration\n"
1676 * "Do not use prefix for onlink determination\n"
1677 * "Set Router Address flag\n"
1679 * "no ipv6 nd prefix X:X::X:X/M (router-address|)",
1681 * "Interface IPv6 config commands\n"
1682 * "Neighbor discovery\n"
1683 * "Prefix information\n"
1685 * "Set Router Address flag\n"
1687 * "no ipv6 nd prefix X:X::X:X/M (off-link|)",
1689 * "Interface IPv6 config commands\n"
1690 * "Neighbor discovery\n"
1691 * "Prefix information\n"
1693 * "Do not use prefix for onlink determination\n"
1695 * "no ipv6 nd prefix X:X::X:X/M (no-autoconfig|)",
1697 * "Interface IPv6 config commands\n"
1698 * "Neighbor discovery\n"
1699 * "Prefix information\n"
1701 * "Do not use prefix for autoconfiguration\n"
1703 * "no ipv6 nd prefix X:X::X:X/M (no-autoconfig|) (off-link|)",
1705 * "Interface IPv6 config commands\n"
1706 * "Neighbor discovery\n"
1707 * "Prefix information\n"
1709 * "Do not use prefix for autoconfiguration\n"
1710 * "Do not use prefix for onlink determination\n"
1712 * "no ipv6 nd prefix X:X::X:X/M (off-link|) (no-autoconfig|)",
1714 * "Interface IPv6 config commands\n"
1715 * "Neighbor discovery\n"
1716 * "Prefix information\n"
1718 * "Do not use prefix for onlink determination\n"
1719 * "Do not use prefix for autoconfiguration\n"
1721 * "no ipv6 nd prefix X:X::X:X/M (<0-4294967295>|infinite) (<0-4294967295>|infinite) (router-address|)",
1723 * "Interface IPv6 config commands\n"
1724 * "Neighbor discovery\n"
1725 * "Prefix information\n"
1727 * "Valid lifetime in seconds\n"
1728 * "Infinite valid lifetime\n"
1729 * "Preferred lifetime in seconds\n"
1730 * "Infinite preferred lifetime\n"
1731 * "Set Router Address flag\n"
1733 * "no ipv6 nd prefix X:X::X:X/M (<0-4294967295>|infinite) (<0-4294967295>|infinite)",
1735 * "Interface IPv6 config commands\n"
1736 * "Neighbor discovery\n"
1737 * "Prefix information\n"
1739 * "Valid lifetime in seconds\n"
1740 * "Infinite valid lifetime\n"
1741 * "Preferred lifetime in seconds\n"
1742 * "Infinite preferred lifetime\n"
1745 DEFUN (no_ipv6_nd_prefix
,
1746 no_ipv6_nd_prefix_cmd
,
1747 "no ipv6 nd prefix IPV6PREFIX",
1749 "Interface IPv6 config commands\n"
1750 "Neighbor discovery\n"
1751 "Prefix information\n"
1755 struct interface
*ifp
;
1756 struct zebra_if
*zebra_if
;
1757 struct rtadv_prefix rp
;
1759 ifp
= (struct interface
*) vty
->index
;
1760 zebra_if
= ifp
->info
;
1762 ret
= str2prefix_ipv6 (argv
[0], &rp
.prefix
);
1765 vty_out (vty
, "Malformed IPv6 prefix%s", VTY_NEWLINE
);
1768 apply_mask_ipv6 (&rp
.prefix
); /* RFC4861 4.6.2 */
1770 ret
= rtadv_prefix_reset (zebra_if
, &rp
);
1773 vty_out (vty
, "Non-exist IPv6 prefix%s", VTY_NEWLINE
);
1792 DEFUN (ipv6_nd_router_preference
,
1793 ipv6_nd_router_preference_cmd
,
1794 "ipv6 nd router-preference <high|medium|low>",
1795 "Interface IPv6 config commands\n"
1796 "Neighbor discovery\n"
1797 "Default router preference\n"
1798 "High default router preference\n"
1799 "Low default router preference\n"
1800 "Medium default router preference (default)\n")
1802 int idx_high_medium_low
= 3;
1803 struct interface
*ifp
;
1804 struct zebra_if
*zif
;
1807 ifp
= (struct interface
*) vty
->index
;
1810 while (0 != rtadv_pref_strs
[i
])
1812 if (strncmp (argv
[idx_high_medium_low
]->arg
, rtadv_pref_strs
[i
], 1) == 0)
1814 zif
->rtadv
.DefaultPreference
= i
;
1820 return CMD_ERR_NO_MATCH
;
1824 * CHECK ME - The following ALIASes need to be implemented in this DEFUN
1825 * "no ipv6 nd router-preference (high|medium|low)",
1827 * "Interface IPv6 config commands\n"
1828 * "Neighbor discovery\n"
1829 * "Default router preference\n"
1830 * "High default router preference\n"
1831 * "Low default router preference\n"
1832 * "Medium default router preference (default)\n"
1835 DEFUN (no_ipv6_nd_router_preference
,
1836 no_ipv6_nd_router_preference_cmd
,
1837 "no ipv6 nd router-preference",
1839 "Interface IPv6 config commands\n"
1840 "Neighbor discovery\n"
1841 "Default router preference\n")
1843 struct interface
*ifp
;
1844 struct zebra_if
*zif
;
1846 ifp
= (struct interface
*) vty
->index
;
1849 zif
->rtadv
.DefaultPreference
= RTADV_PREF_MEDIUM
; /* Default per RFC4191. */
1857 "ipv6 nd mtu (1-65535)",
1858 "Interface IPv6 config commands\n"
1859 "Neighbor discovery\n"
1864 struct interface
*ifp
= (struct interface
*) vty
->index
;
1865 struct zebra_if
*zif
= ifp
->info
;
1866 VTY_GET_INTEGER_RANGE ("MTU", zif
->rtadv
.AdvLinkMTU
, argv
[idx_number
]->arg
, 1, 65535);
1871 * CHECK ME - The following ALIASes need to be implemented in this DEFUN
1872 * "no ipv6 nd mtu <1-65535>",
1874 * "Interface IPv6 config commands\n"
1875 * "Neighbor discovery\n"
1876 * "Advertised MTU\n"
1880 DEFUN (no_ipv6_nd_mtu
,
1884 "Interface IPv6 config commands\n"
1885 "Neighbor discovery\n"
1888 struct interface
*ifp
= (struct interface
*) vty
->index
;
1889 struct zebra_if
*zif
= ifp
->info
;
1890 zif
->rtadv
.AdvLinkMTU
= 0;
1895 /* Write configuration about router advertisement. */
1897 rtadv_config_write (struct vty
*vty
, struct interface
*ifp
)
1899 struct zebra_if
*zif
;
1900 struct listnode
*node
;
1901 struct rtadv_prefix
*rprefix
;
1902 char buf
[PREFIX_STRLEN
];
1907 if (!(if_is_loopback (ifp
) ||
1908 CHECK_FLAG(ifp
->status
, ZEBRA_INTERFACE_VRF_LOOPBACK
)))
1910 if (zif
->rtadv
.AdvSendAdvertisements
)
1911 vty_out (vty
, " no ipv6 nd suppress-ra%s", VTY_NEWLINE
);
1914 interval
= zif
->rtadv
.MaxRtrAdvInterval
;
1915 if (interval
% 1000)
1916 vty_out (vty
, " ipv6 nd ra-interval msec %d%s", interval
,
1919 if (interval
!= RTADV_MAX_RTR_ADV_INTERVAL
)
1920 vty_out (vty
, " ipv6 nd ra-interval %d%s", interval
/ 1000,
1923 if (zif
->rtadv
.AdvIntervalOption
)
1924 vty_out (vty
, " ipv6 nd adv-interval-option%s", VTY_NEWLINE
);
1926 if (zif
->rtadv
.AdvDefaultLifetime
!= -1)
1927 vty_out (vty
, " ipv6 nd ra-lifetime %d%s", zif
->rtadv
.AdvDefaultLifetime
,
1930 if (zif
->rtadv
.HomeAgentPreference
)
1931 vty_out (vty
, " ipv6 nd home-agent-preference %u%s",
1932 zif
->rtadv
.HomeAgentPreference
, VTY_NEWLINE
);
1934 if (zif
->rtadv
.HomeAgentLifetime
!= -1)
1935 vty_out (vty
, " ipv6 nd home-agent-lifetime %u%s",
1936 zif
->rtadv
.HomeAgentLifetime
, VTY_NEWLINE
);
1938 if (zif
->rtadv
.AdvHomeAgentFlag
)
1939 vty_out (vty
, " ipv6 nd home-agent-config-flag%s", VTY_NEWLINE
);
1941 if (zif
->rtadv
.AdvReachableTime
)
1942 vty_out (vty
, " ipv6 nd reachable-time %d%s", zif
->rtadv
.AdvReachableTime
,
1945 if (zif
->rtadv
.AdvManagedFlag
)
1946 vty_out (vty
, " ipv6 nd managed-config-flag%s", VTY_NEWLINE
);
1948 if (zif
->rtadv
.AdvOtherConfigFlag
)
1949 vty_out (vty
, " ipv6 nd other-config-flag%s", VTY_NEWLINE
);
1951 if (zif
->rtadv
.DefaultPreference
!= RTADV_PREF_MEDIUM
)
1952 vty_out (vty
, " ipv6 nd router-preference %s%s",
1953 rtadv_pref_strs
[zif
->rtadv
.DefaultPreference
],
1956 if (zif
->rtadv
.AdvLinkMTU
)
1957 vty_out (vty
, " ipv6 nd mtu %d%s", zif
->rtadv
.AdvLinkMTU
, VTY_NEWLINE
);
1959 for (ALL_LIST_ELEMENTS_RO (zif
->rtadv
.AdvPrefixList
, node
, rprefix
))
1961 vty_out (vty
, " ipv6 nd prefix %s",
1962 prefix2str (&rprefix
->prefix
, buf
, sizeof(buf
)));
1963 if ((rprefix
->AdvValidLifetime
!= RTADV_VALID_LIFETIME
) ||
1964 (rprefix
->AdvPreferredLifetime
!= RTADV_PREFERRED_LIFETIME
))
1966 if (rprefix
->AdvValidLifetime
== UINT32_MAX
)
1967 vty_out (vty
, " infinite");
1969 vty_out (vty
, " %u", rprefix
->AdvValidLifetime
);
1970 if (rprefix
->AdvPreferredLifetime
== UINT32_MAX
)
1971 vty_out (vty
, " infinite");
1973 vty_out (vty
, " %u", rprefix
->AdvPreferredLifetime
);
1975 if (!rprefix
->AdvOnLinkFlag
)
1976 vty_out (vty
, " off-link");
1977 if (!rprefix
->AdvAutonomousFlag
)
1978 vty_out (vty
, " no-autoconfig");
1979 if (rprefix
->AdvRouterAddressFlag
)
1980 vty_out (vty
, " router-address");
1981 vty_out (vty
, "%s", VTY_NEWLINE
);
1987 rtadv_event (struct zebra_ns
*zns
, enum rtadv_event event
, int val
)
1989 struct rtadv
*rtadv
= &zns
->rtadv
;
1994 if (! rtadv
->ra_read
)
1995 rtadv
->ra_read
= thread_add_read (zebrad
.master
, rtadv_read
, zns
, val
);
1996 if (! rtadv
->ra_timer
)
1997 rtadv
->ra_timer
= thread_add_event (zebrad
.master
, rtadv_timer
,
2001 if (rtadv
->ra_timer
)
2003 thread_cancel (rtadv
->ra_timer
);
2004 rtadv
->ra_timer
= NULL
;
2008 thread_cancel (rtadv
->ra_read
);
2009 rtadv
->ra_read
= NULL
;
2013 if (! rtadv
->ra_timer
)
2014 rtadv
->ra_timer
= thread_add_timer (zebrad
.master
, rtadv_timer
, zns
,
2017 case RTADV_TIMER_MSEC
:
2018 if (! rtadv
->ra_timer
)
2019 rtadv
->ra_timer
= thread_add_timer_msec (zebrad
.master
, rtadv_timer
,
2023 if (! rtadv
->ra_read
)
2024 rtadv
->ra_read
= thread_add_read (zebrad
.master
, rtadv_read
, zns
, val
);
2033 rtadv_init (struct zebra_ns
*zns
)
2035 zns
->rtadv
.sock
= rtadv_make_socket ();
2039 rtadv_terminate (struct zebra_ns
*zns
)
2041 rtadv_event (zns
, RTADV_STOP
, 0);
2042 if (zns
->rtadv
.sock
>= 0)
2044 close (zns
->rtadv
.sock
);
2045 zns
->rtadv
.sock
= -1;
2048 zns
->rtadv
.adv_if_count
= 0;
2049 zns
->rtadv
.adv_msec_if_count
= 0;
2053 rtadv_cmd_init (void)
2055 install_element (INTERFACE_NODE
, &ipv6_nd_suppress_ra_cmd
);
2056 install_element (INTERFACE_NODE
, &no_ipv6_nd_suppress_ra_cmd
);
2057 install_element (INTERFACE_NODE
, &ipv6_nd_ra_interval_cmd
);
2058 install_element (INTERFACE_NODE
, &ipv6_nd_ra_interval_msec_cmd
);
2059 install_element (INTERFACE_NODE
, &no_ipv6_nd_ra_interval_cmd
);
2060 install_element (INTERFACE_NODE
, &ipv6_nd_ra_lifetime_cmd
);
2061 install_element (INTERFACE_NODE
, &no_ipv6_nd_ra_lifetime_cmd
);
2062 install_element (INTERFACE_NODE
, &ipv6_nd_reachable_time_cmd
);
2063 install_element (INTERFACE_NODE
, &no_ipv6_nd_reachable_time_cmd
);
2064 install_element (INTERFACE_NODE
, &ipv6_nd_managed_config_flag_cmd
);
2065 install_element (INTERFACE_NODE
, &no_ipv6_nd_managed_config_flag_cmd
);
2066 install_element (INTERFACE_NODE
, &ipv6_nd_other_config_flag_cmd
);
2067 install_element (INTERFACE_NODE
, &no_ipv6_nd_other_config_flag_cmd
);
2068 install_element (INTERFACE_NODE
, &ipv6_nd_homeagent_config_flag_cmd
);
2069 install_element (INTERFACE_NODE
, &no_ipv6_nd_homeagent_config_flag_cmd
);
2070 install_element (INTERFACE_NODE
, &ipv6_nd_homeagent_preference_cmd
);
2071 install_element (INTERFACE_NODE
, &no_ipv6_nd_homeagent_preference_cmd
);
2072 install_element (INTERFACE_NODE
, &ipv6_nd_homeagent_lifetime_cmd
);
2073 install_element (INTERFACE_NODE
, &no_ipv6_nd_homeagent_lifetime_cmd
);
2074 install_element (INTERFACE_NODE
, &ipv6_nd_adv_interval_config_option_cmd
);
2075 install_element (INTERFACE_NODE
, &no_ipv6_nd_adv_interval_config_option_cmd
);
2076 install_element (INTERFACE_NODE
, &ipv6_nd_prefix_cmd
);
2077 install_element (INTERFACE_NODE
, &no_ipv6_nd_prefix_cmd
);
2078 install_element (INTERFACE_NODE
, &ipv6_nd_router_preference_cmd
);
2079 install_element (INTERFACE_NODE
, &no_ipv6_nd_router_preference_cmd
);
2080 install_element (INTERFACE_NODE
, &ipv6_nd_mtu_cmd
);
2081 install_element (INTERFACE_NODE
, &no_ipv6_nd_mtu_cmd
);
2085 if_join_all_router (int sock
, struct interface
*ifp
)
2089 struct ipv6_mreq mreq
;
2091 memset (&mreq
, 0, sizeof (struct ipv6_mreq
));
2092 inet_pton (AF_INET6
, ALLROUTER
, &mreq
.ipv6mr_multiaddr
);
2093 mreq
.ipv6mr_interface
= ifp
->ifindex
;
2095 ret
= setsockopt (sock
, IPPROTO_IPV6
, IPV6_JOIN_GROUP
,
2096 (char *) &mreq
, sizeof mreq
);
2098 zlog_warn ("%s(%u): Failed to join group, socket %u error %s",
2099 ifp
->name
, ifp
->ifindex
, sock
, safe_strerror (errno
));
2101 if (IS_ZEBRA_DEBUG_EVENT
)
2102 zlog_debug ("%s(%u): Join All-Routers multicast group, socket %u",
2103 ifp
->name
, ifp
->ifindex
, sock
);
2109 if_leave_all_router (int sock
, struct interface
*ifp
)
2113 struct ipv6_mreq mreq
;
2115 memset (&mreq
, 0, sizeof (struct ipv6_mreq
));
2116 inet_pton (AF_INET6
, ALLROUTER
, &mreq
.ipv6mr_multiaddr
);
2117 mreq
.ipv6mr_interface
= ifp
->ifindex
;
2119 ret
= setsockopt (sock
, IPPROTO_IPV6
, IPV6_LEAVE_GROUP
,
2120 (char *) &mreq
, sizeof mreq
);
2122 zlog_warn ("%s(%u): Failed to leave group, socket %u error %s",
2123 ifp
->name
, ifp
->ifindex
, sock
,safe_strerror (errno
));
2125 if (IS_ZEBRA_DEBUG_EVENT
)
2126 zlog_debug ("%s(%u): Leave All-Routers multicast group, socket %u",
2127 ifp
->name
, ifp
->ifindex
, sock
);
2134 rtadv_init (struct zebra_ns
*zns
)
2139 rtadv_terminate (struct zebra_ns
*zns
)
2144 rtadv_cmd_init (void)
2148 #endif /* HAVE_RTADV && HAVE_IPV6 */