2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the project nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * Copyright (c) 1982, 1986, 1988, 1993
32 * The Regents of the University of California.
33 * All rights reserved.
35 * Redistribution and use in source and binary forms, with or without
36 * modification, are permitted provided that the following conditions
38 * 1. Redistributions of source code must retain the above copyright
39 * notice, this list of conditions and the following disclaimer.
40 * 2. Redistributions in binary form must reproduce the above copyright
41 * notice, this list of conditions and the following disclaimer in the
42 * documentation and/or other materials provided with the distribution.
43 * 4. Neither the name of the University nor the names of its contributors
44 * may be used to endorse or promote products derived from this software
45 * without specific prior written permission.
47 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
48 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
49 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
50 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
51 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
52 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
53 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
54 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
55 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
56 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
59 * @(#)raw_ip.c 8.2 (Berkeley) 1/4/94
62 #include <sys/cdefs.h>
63 __FBSDID("$FreeBSD$");
65 #include "opt_ipsec.h"
66 #include "opt_inet6.h"
68 #include <sys/param.h>
69 #include <sys/errno.h>
72 #include <sys/malloc.h>
76 #include <sys/protosw.h>
77 #include <sys/signalvar.h>
78 #include <sys/socket.h>
79 #include <sys/socketvar.h>
81 #include <sys/syslog.h>
82 #include <sys/vimage.h>
85 #include <net/if_types.h>
86 #include <net/route.h>
89 #include <netinet/in.h>
90 #include <netinet/in_var.h>
91 #include <netinet/in_systm.h>
92 #include <netinet/in_pcb.h>
93 #include <netinet/vinet.h>
95 #include <netinet/icmp6.h>
96 #include <netinet/ip6.h>
97 #include <netinet6/ip6protosw.h>
98 #include <netinet6/ip6_mroute.h>
99 #include <netinet6/in6_pcb.h>
100 #include <netinet6/ip6_var.h>
101 #include <netinet6/nd6.h>
102 #include <netinet6/raw_ip6.h>
103 #include <netinet6/scope6_var.h>
104 #include <netinet6/vinet6.h>
107 #include <netipsec/ipsec.h>
108 #include <netipsec/ipsec6.h>
111 #include <machine/stdarg.h>
113 #define satosin6(sa) ((struct sockaddr_in6 *)(sa))
114 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa))
117 * Raw interface to IP6 protocol.
120 #ifdef VIMAGE_GLOBALS
121 extern struct inpcbhead ripcb;
122 extern struct inpcbinfo ripcbinfo;
123 struct rip6stat rip6stat;
126 extern u_long rip_sendspace;
127 extern u_long rip_recvspace;
130 * Hooks for multicast routing. They all default to NULL, so leave them not
131 * initialized and rely on BSS being set to 0.
135 * The socket used to communicate with the multicast routing daemon.
137 #ifdef VIMAGE_GLOBALS
138 struct socket *ip6_mrouter;
142 * The various mrouter functions.
144 int (*ip6_mrouter_set)(struct socket *, struct sockopt *);
145 int (*ip6_mrouter_get)(struct socket *, struct sockopt *);
146 int (*ip6_mrouter_done)(void);
147 int (*ip6_mforward)(struct ip6_hdr *, struct ifnet *, struct mbuf *);
148 int (*mrt6_ioctl)(int, caddr_t);
151 * Setup generic address and protocol structures for raw_input routine, then
152 * pass them along with mbuf chain.
155 rip6_input(struct mbuf **mp, int *offp, int proto)
157 INIT_VNET_INET(curvnet);
158 INIT_VNET_INET6(curvnet);
160 INIT_VNET_IPSEC(curvnet);
163 struct mbuf *m = *mp;
164 register struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *);
165 register struct inpcb *in6p;
166 struct inpcb *last = 0;
167 struct mbuf *opts = NULL;
168 struct sockaddr_in6 fromsa;
170 V_rip6stat.rip6s_ipackets++;
172 if (faithprefix_p != NULL && (*faithprefix_p)(&ip6->ip6_dst)) {
173 /* XXX Send icmp6 host/port unreach? */
175 return (IPPROTO_DONE);
178 init_sin6(&fromsa, m); /* general init */
180 ifp = m->m_pkthdr.rcvif;
182 INP_INFO_RLOCK(&V_ripcbinfo);
183 LIST_FOREACH(in6p, &V_ripcb, inp_list) {
184 /* XXX inp locking */
185 if ((in6p->inp_vflag & INP_IPV6) == 0)
187 if (in6p->inp_ip_p &&
188 in6p->inp_ip_p != proto)
190 if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_laddr) &&
191 !IN6_ARE_ADDR_EQUAL(&in6p->in6p_laddr, &ip6->ip6_dst))
193 if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_faddr) &&
194 !IN6_ARE_ADDR_EQUAL(&in6p->in6p_faddr, &ip6->ip6_src))
196 if (jailed(in6p->inp_cred)) {
198 * Allow raw socket in jail to receive multicast;
199 * assume process had PRIV_NETINET_RAW at attach,
200 * and fall through into normal filter path if so.
202 if (!IN6_IS_ADDR_MULTICAST(&ip6->ip6_dst) &&
203 prison_check_ip6(in6p->inp_cred,
207 if (in6p->in6p_cksum != -1) {
208 V_rip6stat.rip6s_isum++;
209 if (in6_cksum(m, proto, *offp,
210 m->m_pkthdr.len - *offp)) {
212 V_rip6stat.rip6s_badsum++;
218 * If this raw socket has multicast state, and we
219 * have received a multicast, check if this socket
220 * should receive it, as multicast filtering is now
221 * the responsibility of the transport layer.
223 if (in6p->in6p_moptions &&
224 IN6_IS_ADDR_MULTICAST(&ip6->ip6_dst)) {
225 struct sockaddr_in6 mcaddr;
228 bzero(&mcaddr, sizeof(struct sockaddr_in6));
229 mcaddr.sin6_len = sizeof(struct sockaddr_in6);
230 mcaddr.sin6_family = AF_INET6;
231 mcaddr.sin6_addr = ip6->ip6_dst;
233 blocked = im6o_mc_filter(in6p->in6p_moptions, ifp,
234 (struct sockaddr *)&mcaddr,
235 (struct sockaddr *)&fromsa);
236 if (blocked != MCAST_PASS) {
237 IP6STAT_INC(ip6s_notmember);
242 struct mbuf *n = m_copy(m, 0, (int)M_COPYALL);
246 * Check AH/ESP integrity.
248 if (n && ipsec6_in_reject(n, last)) {
250 V_ipsec6stat.in_polvio++;
251 /* Do not inject data into pcb. */
255 if (last->inp_flags & INP_CONTROLOPTS ||
256 last->inp_socket->so_options & SO_TIMESTAMP)
257 ip6_savecontrol(last, n, &opts);
258 /* strip intermediate headers */
260 if (sbappendaddr(&last->inp_socket->so_rcv,
261 (struct sockaddr *)&fromsa,
266 V_rip6stat.rip6s_fullsock++;
268 sorwakeup(last->inp_socket);
275 INP_INFO_RUNLOCK(&V_ripcbinfo);
278 * Check AH/ESP integrity.
280 if ((last != NULL) && ipsec6_in_reject(m, last)) {
282 V_ipsec6stat.in_polvio++;
283 V_ip6stat.ip6s_delivered--;
284 /* Do not inject data into pcb. */
289 if (last->inp_flags & INP_CONTROLOPTS ||
290 last->inp_socket->so_options & SO_TIMESTAMP)
291 ip6_savecontrol(last, m, &opts);
292 /* Strip intermediate headers. */
294 if (sbappendaddr(&last->inp_socket->so_rcv,
295 (struct sockaddr *)&fromsa, m, opts) == 0) {
299 V_rip6stat.rip6s_fullsock++;
301 sorwakeup(last->inp_socket);
304 V_rip6stat.rip6s_nosock++;
305 if (m->m_flags & M_MCAST)
306 V_rip6stat.rip6s_nosockmcast++;
307 if (proto == IPPROTO_NONE)
310 char *prvnxtp = ip6_get_prevhdr(m, *offp); /* XXX */
311 icmp6_error(m, ICMP6_PARAM_PROB,
312 ICMP6_PARAMPROB_NEXTHEADER,
313 prvnxtp - mtod(m, char *));
315 V_ip6stat.ip6s_delivered--;
317 return (IPPROTO_DONE);
321 rip6_ctlinput(int cmd, struct sockaddr *sa, void *d)
323 INIT_VNET_INET(curvnet);
327 struct ip6ctlparam *ip6cp = NULL;
328 const struct sockaddr_in6 *sa6_src = NULL;
330 struct inpcb *(*notify)(struct inpcb *, int) = in6_rtchange;
332 if (sa->sa_family != AF_INET6 ||
333 sa->sa_len != sizeof(struct sockaddr_in6))
336 if ((unsigned)cmd >= PRC_NCMDS)
338 if (PRC_IS_REDIRECT(cmd))
339 notify = in6_rtchange, d = NULL;
340 else if (cmd == PRC_HOSTDEAD)
342 else if (inet6ctlerrmap[cmd] == 0)
346 * If the parameter is from icmp6, decode it.
349 ip6cp = (struct ip6ctlparam *)d;
351 ip6 = ip6cp->ip6c_ip6;
352 off = ip6cp->ip6c_off;
353 cmdarg = ip6cp->ip6c_cmdarg;
354 sa6_src = ip6cp->ip6c_src;
362 (void) in6_pcbnotify(&V_ripcbinfo, sa, 0,
363 (const struct sockaddr *)sa6_src, 0, cmd, cmdarg, notify);
367 * Generate IPv6 header and pass packet to ip6_output. Tack on options user
368 * may have setup with control call.
372 rip6_output(struct mbuf *m, ...)
374 rip6_output(m, va_alist)
379 INIT_VNET_INET6(curvnet);
380 struct mbuf *control;
382 struct sockaddr_in6 *dstsock;
383 struct in6_addr *dst;
386 u_int plen = m->m_pkthdr.len;
388 struct ip6_pktopts opt, *optp;
389 struct ifnet *oifp = NULL;
390 int type = 0, code = 0; /* for ICMPv6 output statistics only */
391 int scope_ambiguous = 0;
392 struct in6_addr *in6a;
396 so = va_arg(ap, struct socket *);
397 dstsock = va_arg(ap, struct sockaddr_in6 *);
398 control = va_arg(ap, struct mbuf *);
401 in6p = sotoinpcb(so);
404 dst = &dstsock->sin6_addr;
405 if (control != NULL) {
406 if ((error = ip6_setpktopts(control, &opt,
407 in6p->in6p_outputopts, so->so_cred,
408 so->so_proto->pr_protocol)) != 0) {
413 optp = in6p->in6p_outputopts;
416 * Check and convert scope zone ID into internal form.
418 * XXX: we may still need to determine the zone later.
420 if (!(so->so_state & SS_ISCONNECTED)) {
421 if (dstsock->sin6_scope_id == 0 && !V_ip6_use_defzone)
423 if ((error = sa6_embedscope(dstsock, V_ip6_use_defzone)) != 0)
428 * For an ICMPv6 packet, we should know its type and code to update
431 if (so->so_proto->pr_protocol == IPPROTO_ICMPV6) {
432 struct icmp6_hdr *icmp6;
433 if (m->m_len < sizeof(struct icmp6_hdr) &&
434 (m = m_pullup(m, sizeof(struct icmp6_hdr))) == NULL) {
438 icmp6 = mtod(m, struct icmp6_hdr *);
439 type = icmp6->icmp6_type;
440 code = icmp6->icmp6_code;
443 M_PREPEND(m, sizeof(*ip6), M_DONTWAIT);
448 ip6 = mtod(m, struct ip6_hdr *);
451 * Source address selection.
453 if ((in6a = in6_selectsrc(dstsock, optp, in6p, NULL, so->so_cred,
454 &oifp, &error)) == NULL) {
456 error = EADDRNOTAVAIL;
459 error = prison_get_ip6(in6p->inp_cred, in6a);
462 ip6->ip6_src = *in6a;
464 if (oifp && scope_ambiguous) {
466 * Application should provide a proper zone ID or the use of
467 * default zone IDs should be enabled. Unfortunately, some
468 * applications do not behave as it should, so we need a
469 * workaround. Even if an appropriate ID is not determined
470 * (when it's required), if we can determine the outgoing
471 * interface. determine the zone ID based on the interface.
473 error = in6_setscope(&dstsock->sin6_addr, oifp, NULL);
477 ip6->ip6_dst = dstsock->sin6_addr;
480 * Fill in the rest of the IPv6 header fields.
482 ip6->ip6_flow = (ip6->ip6_flow & ~IPV6_FLOWINFO_MASK) |
483 (in6p->inp_flow & IPV6_FLOWINFO_MASK);
484 ip6->ip6_vfc = (ip6->ip6_vfc & ~IPV6_VERSION_MASK) |
485 (IPV6_VERSION & IPV6_VERSION_MASK);
488 * ip6_plen will be filled in ip6_output, so not fill it here.
490 ip6->ip6_nxt = in6p->inp_ip_p;
491 ip6->ip6_hlim = in6_selecthlim(in6p, oifp);
493 if (so->so_proto->pr_protocol == IPPROTO_ICMPV6 ||
494 in6p->in6p_cksum != -1) {
499 /* Compute checksum. */
500 if (so->so_proto->pr_protocol == IPPROTO_ICMPV6)
501 off = offsetof(struct icmp6_hdr, icmp6_cksum);
503 off = in6p->in6p_cksum;
504 if (plen < off + 1) {
508 off += sizeof(struct ip6_hdr);
511 while (n && n->m_len <= off) {
517 p = (u_int16_t *)(mtod(n, caddr_t) + off);
519 *p = in6_cksum(m, ip6->ip6_nxt, sizeof(*ip6), plen);
522 error = ip6_output(m, optp, NULL, 0, in6p->in6p_moptions, &oifp, in6p);
523 if (so->so_proto->pr_protocol == IPPROTO_ICMPV6) {
525 icmp6_ifoutstat_inc(oifp, type, code);
526 ICMP6STAT_INC(icp6s_outhist[type]);
528 V_rip6stat.rip6s_opackets++;
537 if (control != NULL) {
538 ip6_clearpktopts(&opt, -1);
546 * Raw IPv6 socket option processing.
549 rip6_ctloutput(struct socket *so, struct sockopt *sopt)
553 if (sopt->sopt_level == IPPROTO_ICMPV6)
555 * XXX: is it better to call icmp6_ctloutput() directly
558 return (icmp6_ctloutput(so, sopt));
559 else if (sopt->sopt_level != IPPROTO_IPV6)
564 switch (sopt->sopt_dir) {
566 switch (sopt->sopt_name) {
574 error = ip6_mrouter_get ? ip6_mrouter_get(so, sopt) :
578 error = ip6_raw_ctloutput(so, sopt);
581 error = ip6_ctloutput(so, sopt);
587 switch (sopt->sopt_name) {
595 error = ip6_mrouter_set ? ip6_mrouter_set(so, sopt) :
599 error = ip6_raw_ctloutput(so, sopt);
602 error = ip6_ctloutput(so, sopt);
612 rip6_attach(struct socket *so, int proto, struct thread *td)
614 INIT_VNET_INET(so->so_vnet);
616 struct icmp6_filter *filter;
620 KASSERT(inp == NULL, ("rip6_attach: inp != NULL"));
622 error = priv_check(td, PRIV_NETINET_RAW);
625 error = soreserve(so, rip_sendspace, rip_recvspace);
628 filter = malloc(sizeof(struct icmp6_filter), M_PCB, M_NOWAIT);
631 INP_INFO_WLOCK(&V_ripcbinfo);
632 error = in_pcballoc(so, &V_ripcbinfo);
634 INP_INFO_WUNLOCK(&V_ripcbinfo);
638 inp = (struct inpcb *)so->so_pcb;
639 INP_INFO_WUNLOCK(&V_ripcbinfo);
640 inp->inp_vflag |= INP_IPV6;
641 inp->inp_ip_p = (long)proto;
642 inp->in6p_hops = -1; /* use kernel default */
643 inp->in6p_cksum = -1;
644 inp->in6p_icmp6filt = filter;
645 ICMP6_FILTER_SETPASSALL(inp->in6p_icmp6filt);
651 rip6_detach(struct socket *so)
653 INIT_VNET_INET(so->so_vnet);
654 INIT_VNET_INET6(so->so_vnet);
658 KASSERT(inp != NULL, ("rip6_detach: inp == NULL"));
660 if (so == V_ip6_mrouter && ip6_mrouter_done)
663 INP_INFO_WLOCK(&V_ripcbinfo);
665 free(inp->in6p_icmp6filt, M_PCB);
668 INP_INFO_WUNLOCK(&V_ripcbinfo);
671 /* XXXRW: This can't ever be called. */
673 rip6_abort(struct socket *so)
678 KASSERT(inp != NULL, ("rip6_abort: inp == NULL"));
680 soisdisconnected(so);
684 rip6_close(struct socket *so)
689 KASSERT(inp != NULL, ("rip6_close: inp == NULL"));
691 soisdisconnected(so);
695 rip6_disconnect(struct socket *so)
700 KASSERT(inp != NULL, ("rip6_disconnect: inp == NULL"));
702 if ((so->so_state & SS_ISCONNECTED) == 0)
704 inp->in6p_faddr = in6addr_any;
710 rip6_bind(struct socket *so, struct sockaddr *nam, struct thread *td)
712 INIT_VNET_NET(so->so_vnet);
713 INIT_VNET_INET(so->so_vnet);
714 INIT_VNET_INET6(so->so_vnet);
716 struct sockaddr_in6 *addr = (struct sockaddr_in6 *)nam;
717 struct ifaddr *ia = NULL;
721 KASSERT(inp != NULL, ("rip6_bind: inp == NULL"));
723 if (nam->sa_len != sizeof(*addr))
725 if ((error = prison_check_ip6(td->td_ucred, &addr->sin6_addr)) != 0)
727 if (TAILQ_EMPTY(&V_ifnet) || addr->sin6_family != AF_INET6)
728 return (EADDRNOTAVAIL);
729 if ((error = sa6_embedscope(addr, V_ip6_use_defzone)) != 0)
732 if (!IN6_IS_ADDR_UNSPECIFIED(&addr->sin6_addr) &&
733 (ia = ifa_ifwithaddr((struct sockaddr *)addr)) == 0)
734 return (EADDRNOTAVAIL);
736 ((struct in6_ifaddr *)ia)->ia6_flags &
737 (IN6_IFF_ANYCAST|IN6_IFF_NOTREADY|
738 IN6_IFF_DETACHED|IN6_IFF_DEPRECATED)) {
739 return (EADDRNOTAVAIL);
741 INP_INFO_WLOCK(&V_ripcbinfo);
743 inp->in6p_laddr = addr->sin6_addr;
745 INP_INFO_WUNLOCK(&V_ripcbinfo);
750 rip6_connect(struct socket *so, struct sockaddr *nam, struct thread *td)
752 INIT_VNET_NET(so->so_vnet);
753 INIT_VNET_INET(so->so_vnet);
754 INIT_VNET_INET6(so->so_vnet);
756 struct sockaddr_in6 *addr = (struct sockaddr_in6 *)nam;
757 struct in6_addr *in6a = NULL;
758 struct ifnet *ifp = NULL;
759 int error = 0, scope_ambiguous = 0;
762 KASSERT(inp != NULL, ("rip6_connect: inp == NULL"));
764 if (nam->sa_len != sizeof(*addr))
766 if (TAILQ_EMPTY(&V_ifnet))
767 return (EADDRNOTAVAIL);
768 if (addr->sin6_family != AF_INET6)
769 return (EAFNOSUPPORT);
772 * Application should provide a proper zone ID or the use of default
773 * zone IDs should be enabled. Unfortunately, some applications do
774 * not behave as it should, so we need a workaround. Even if an
775 * appropriate ID is not determined, we'll see if we can determine
776 * the outgoing interface. If we can, determine the zone ID based on
777 * the interface below.
779 if (addr->sin6_scope_id == 0 && !V_ip6_use_defzone)
781 if ((error = sa6_embedscope(addr, V_ip6_use_defzone)) != 0)
784 INP_INFO_WLOCK(&V_ripcbinfo);
786 /* Source address selection. XXX: need pcblookup? */
787 in6a = in6_selectsrc(addr, inp->in6p_outputopts,
788 inp, NULL, so->so_cred,
792 INP_INFO_WUNLOCK(&V_ripcbinfo);
793 return (error ? error : EADDRNOTAVAIL);
797 if (ifp && scope_ambiguous &&
798 (error = in6_setscope(&addr->sin6_addr, ifp, NULL)) != 0) {
800 INP_INFO_WUNLOCK(&V_ripcbinfo);
803 inp->in6p_faddr = addr->sin6_addr;
804 inp->in6p_laddr = *in6a;
807 INP_INFO_WUNLOCK(&V_ripcbinfo);
812 rip6_shutdown(struct socket *so)
817 KASSERT(inp != NULL, ("rip6_shutdown: inp == NULL"));
826 rip6_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *nam,
827 struct mbuf *control, struct thread *td)
830 struct sockaddr_in6 tmp;
831 struct sockaddr_in6 *dst;
835 KASSERT(inp != NULL, ("rip6_send: inp == NULL"));
837 /* Always copy sockaddr to avoid overwrites. */
839 if (so->so_state & SS_ISCONNECTED) {
845 bzero(&tmp, sizeof(tmp));
846 tmp.sin6_family = AF_INET6;
847 tmp.sin6_len = sizeof(struct sockaddr_in6);
849 bcopy(&inp->in6p_faddr, &tmp.sin6_addr,
850 sizeof(struct in6_addr));
858 if (nam->sa_len != sizeof(struct sockaddr_in6)) {
862 tmp = *(struct sockaddr_in6 *)nam;
865 if (dst->sin6_family == AF_UNSPEC) {
867 * XXX: we allow this case for backward
868 * compatibility to buggy applications that
869 * rely on old (and wrong) kernel behavior.
871 log(LOG_INFO, "rip6 SEND: address family is "
872 "unspec. Assume AF_INET6\n");
873 dst->sin6_family = AF_INET6;
874 } else if (dst->sin6_family != AF_INET6) {
876 return(EAFNOSUPPORT);
879 ret = rip6_output(m, so, dst, control);
883 struct pr_usrreqs rip6_usrreqs = {
884 .pru_abort = rip6_abort,
885 .pru_attach = rip6_attach,
886 .pru_bind = rip6_bind,
887 .pru_connect = rip6_connect,
888 .pru_control = in6_control,
889 .pru_detach = rip6_detach,
890 .pru_disconnect = rip6_disconnect,
891 .pru_peeraddr = in6_getpeeraddr,
892 .pru_send = rip6_send,
893 .pru_shutdown = rip6_shutdown,
894 .pru_sockaddr = in6_getsockaddr,
895 .pru_close = rip6_close,