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"
67 #include "opt_route.h"
69 #include <sys/param.h>
70 #include <sys/errno.h>
73 #include <sys/malloc.h>
77 #include <sys/protosw.h>
78 #include <sys/signalvar.h>
79 #include <sys/socket.h>
80 #include <sys/socketvar.h>
82 #include <sys/syslog.h>
83 #include <sys/vimage.h>
86 #include <net/if_types.h>
87 #include <net/route.h>
90 #include <netinet/in.h>
91 #include <netinet/in_var.h>
92 #include <netinet/in_systm.h>
93 #include <netinet/in_pcb.h>
94 #include <netinet/vinet.h>
96 #include <netinet/icmp6.h>
97 #include <netinet/ip6.h>
98 #include <netinet6/ip6protosw.h>
99 #include <netinet6/ip6_mroute.h>
100 #include <netinet6/in6_pcb.h>
101 #include <netinet6/ip6_var.h>
102 #include <netinet6/nd6.h>
103 #include <netinet6/raw_ip6.h>
104 #include <netinet6/scope6_var.h>
105 #include <netinet6/vinet6.h>
108 #include <netipsec/ipsec.h>
109 #include <netipsec/ipsec6.h>
112 #include <machine/stdarg.h>
114 #define satosin6(sa) ((struct sockaddr_in6 *)(sa))
115 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa))
118 * Raw interface to IP6 protocol.
121 #ifdef VIMAGE_GLOBALS
122 extern struct inpcbhead ripcb;
123 extern struct inpcbinfo ripcbinfo;
124 struct rip6stat rip6stat;
127 extern u_long rip_sendspace;
128 extern u_long rip_recvspace;
131 * Hooks for multicast routing. They all default to NULL, so leave them not
132 * initialized and rely on BSS being set to 0.
136 * The socket used to communicate with the multicast routing daemon.
138 #ifdef VIMAGE_GLOBALS
139 struct socket *ip6_mrouter;
143 * The various mrouter functions.
145 int (*ip6_mrouter_set)(struct socket *, struct sockopt *);
146 int (*ip6_mrouter_get)(struct socket *, struct sockopt *);
147 int (*ip6_mrouter_done)(void);
148 int (*ip6_mforward)(struct ip6_hdr *, struct ifnet *, struct mbuf *);
149 int (*mrt6_ioctl)(int, caddr_t);
152 * Setup generic address and protocol structures for raw_input routine, then
153 * pass them along with mbuf chain.
156 rip6_input(struct mbuf **mp, int *offp, int proto)
158 INIT_VNET_INET(curvnet);
159 INIT_VNET_INET6(curvnet);
161 INIT_VNET_IPSEC(curvnet);
164 struct mbuf *m = *mp;
165 register struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *);
166 register struct inpcb *in6p;
167 struct inpcb *last = 0;
168 struct mbuf *opts = NULL;
169 struct sockaddr_in6 fromsa;
171 V_rip6stat.rip6s_ipackets++;
173 if (faithprefix_p != NULL && (*faithprefix_p)(&ip6->ip6_dst)) {
174 /* XXX Send icmp6 host/port unreach? */
176 return (IPPROTO_DONE);
179 init_sin6(&fromsa, m); /* general init */
181 ifp = m->m_pkthdr.rcvif;
183 INP_INFO_RLOCK(&V_ripcbinfo);
184 LIST_FOREACH(in6p, &V_ripcb, inp_list) {
185 /* XXX inp locking */
186 if ((in6p->inp_vflag & INP_IPV6) == 0)
188 if (in6p->inp_ip_p &&
189 in6p->inp_ip_p != proto)
191 if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_laddr) &&
192 !IN6_ARE_ADDR_EQUAL(&in6p->in6p_laddr, &ip6->ip6_dst))
194 if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_faddr) &&
195 !IN6_ARE_ADDR_EQUAL(&in6p->in6p_faddr, &ip6->ip6_src))
197 if (jailed(in6p->inp_cred)) {
199 * Allow raw socket in jail to receive multicast;
200 * assume process had PRIV_NETINET_RAW at attach,
201 * and fall through into normal filter path if so.
203 if (!IN6_IS_ADDR_MULTICAST(&ip6->ip6_dst) &&
204 prison_check_ip6(in6p->inp_cred,
208 if (in6p->in6p_cksum != -1) {
209 V_rip6stat.rip6s_isum++;
210 if (in6_cksum(m, proto, *offp,
211 m->m_pkthdr.len - *offp)) {
213 V_rip6stat.rip6s_badsum++;
219 * If this raw socket has multicast state, and we
220 * have received a multicast, check if this socket
221 * should receive it, as multicast filtering is now
222 * the responsibility of the transport layer.
224 if (in6p->in6p_moptions &&
225 IN6_IS_ADDR_MULTICAST(&ip6->ip6_dst)) {
226 struct sockaddr_in6 mcaddr;
229 bzero(&mcaddr, sizeof(struct sockaddr_in6));
230 mcaddr.sin6_len = sizeof(struct sockaddr_in6);
231 mcaddr.sin6_family = AF_INET6;
232 mcaddr.sin6_addr = ip6->ip6_dst;
234 blocked = im6o_mc_filter(in6p->in6p_moptions, ifp,
235 (struct sockaddr *)&mcaddr,
236 (struct sockaddr *)&fromsa);
237 if (blocked != MCAST_PASS) {
238 IP6STAT_INC(ip6s_notmember);
243 struct mbuf *n = m_copy(m, 0, (int)M_COPYALL);
247 * Check AH/ESP integrity.
249 if (n && ipsec6_in_reject(n, last)) {
251 V_ipsec6stat.in_polvio++;
252 /* Do not inject data into pcb. */
256 if (last->inp_flags & INP_CONTROLOPTS ||
257 last->inp_socket->so_options & SO_TIMESTAMP)
258 ip6_savecontrol(last, n, &opts);
259 /* strip intermediate headers */
261 if (sbappendaddr(&last->inp_socket->so_rcv,
262 (struct sockaddr *)&fromsa,
267 V_rip6stat.rip6s_fullsock++;
269 sorwakeup(last->inp_socket);
276 INP_INFO_RUNLOCK(&V_ripcbinfo);
279 * Check AH/ESP integrity.
281 if ((last != NULL) && ipsec6_in_reject(m, last)) {
283 V_ipsec6stat.in_polvio++;
284 V_ip6stat.ip6s_delivered--;
285 /* Do not inject data into pcb. */
290 if (last->inp_flags & INP_CONTROLOPTS ||
291 last->inp_socket->so_options & SO_TIMESTAMP)
292 ip6_savecontrol(last, m, &opts);
293 /* Strip intermediate headers. */
295 if (sbappendaddr(&last->inp_socket->so_rcv,
296 (struct sockaddr *)&fromsa, m, opts) == 0) {
300 V_rip6stat.rip6s_fullsock++;
302 sorwakeup(last->inp_socket);
305 V_rip6stat.rip6s_nosock++;
306 if (m->m_flags & M_MCAST)
307 V_rip6stat.rip6s_nosockmcast++;
308 if (proto == IPPROTO_NONE)
311 char *prvnxtp = ip6_get_prevhdr(m, *offp); /* XXX */
312 icmp6_error(m, ICMP6_PARAM_PROB,
313 ICMP6_PARAMPROB_NEXTHEADER,
314 prvnxtp - mtod(m, char *));
316 V_ip6stat.ip6s_delivered--;
318 return (IPPROTO_DONE);
322 rip6_ctlinput(int cmd, struct sockaddr *sa, void *d)
324 INIT_VNET_INET(curvnet);
328 struct ip6ctlparam *ip6cp = NULL;
329 const struct sockaddr_in6 *sa6_src = NULL;
331 struct inpcb *(*notify)(struct inpcb *, int) = in6_rtchange;
333 if (sa->sa_family != AF_INET6 ||
334 sa->sa_len != sizeof(struct sockaddr_in6))
337 if ((unsigned)cmd >= PRC_NCMDS)
339 if (PRC_IS_REDIRECT(cmd))
340 notify = in6_rtchange, d = NULL;
341 else if (cmd == PRC_HOSTDEAD)
343 else if (inet6ctlerrmap[cmd] == 0)
347 * If the parameter is from icmp6, decode it.
350 ip6cp = (struct ip6ctlparam *)d;
352 ip6 = ip6cp->ip6c_ip6;
353 off = ip6cp->ip6c_off;
354 cmdarg = ip6cp->ip6c_cmdarg;
355 sa6_src = ip6cp->ip6c_src;
363 (void) in6_pcbnotify(&V_ripcbinfo, sa, 0,
364 (const struct sockaddr *)sa6_src, 0, cmd, cmdarg, notify);
368 * Generate IPv6 header and pass packet to ip6_output. Tack on options user
369 * may have setup with control call.
373 rip6_output(struct mbuf *m, ...)
375 rip6_output(m, va_alist)
380 INIT_VNET_INET6(curvnet);
381 struct mbuf *control;
383 struct sockaddr_in6 *dstsock;
384 struct in6_addr *dst;
387 u_int plen = m->m_pkthdr.len;
389 struct ip6_pktopts opt, *optp;
390 struct ifnet *oifp = NULL;
391 int type = 0, code = 0; /* for ICMPv6 output statistics only */
392 int scope_ambiguous = 0;
393 struct in6_addr *in6a;
397 so = va_arg(ap, struct socket *);
398 dstsock = va_arg(ap, struct sockaddr_in6 *);
399 control = va_arg(ap, struct mbuf *);
402 in6p = sotoinpcb(so);
405 dst = &dstsock->sin6_addr;
406 if (control != NULL) {
407 if ((error = ip6_setpktopts(control, &opt,
408 in6p->in6p_outputopts, so->so_cred,
409 so->so_proto->pr_protocol)) != 0) {
414 optp = in6p->in6p_outputopts;
417 * Check and convert scope zone ID into internal form.
419 * XXX: we may still need to determine the zone later.
421 if (!(so->so_state & SS_ISCONNECTED)) {
422 if (dstsock->sin6_scope_id == 0 && !V_ip6_use_defzone)
424 if ((error = sa6_embedscope(dstsock, V_ip6_use_defzone)) != 0)
429 * For an ICMPv6 packet, we should know its type and code to update
432 if (so->so_proto->pr_protocol == IPPROTO_ICMPV6) {
433 struct icmp6_hdr *icmp6;
434 if (m->m_len < sizeof(struct icmp6_hdr) &&
435 (m = m_pullup(m, sizeof(struct icmp6_hdr))) == NULL) {
439 icmp6 = mtod(m, struct icmp6_hdr *);
440 type = icmp6->icmp6_type;
441 code = icmp6->icmp6_code;
444 M_PREPEND(m, sizeof(*ip6), M_DONTWAIT);
449 ip6 = mtod(m, struct ip6_hdr *);
452 * Source address selection.
454 if ((in6a = in6_selectsrc(dstsock, optp, in6p, NULL, so->so_cred,
455 &oifp, &error)) == NULL) {
457 error = EADDRNOTAVAIL;
460 error = prison_get_ip6(in6p->inp_cred, in6a);
463 ip6->ip6_src = *in6a;
465 if (oifp && scope_ambiguous) {
467 * Application should provide a proper zone ID or the use of
468 * default zone IDs should be enabled. Unfortunately, some
469 * applications do not behave as it should, so we need a
470 * workaround. Even if an appropriate ID is not determined
471 * (when it's required), if we can determine the outgoing
472 * interface. determine the zone ID based on the interface.
474 error = in6_setscope(&dstsock->sin6_addr, oifp, NULL);
478 ip6->ip6_dst = dstsock->sin6_addr;
481 * Fill in the rest of the IPv6 header fields.
483 ip6->ip6_flow = (ip6->ip6_flow & ~IPV6_FLOWINFO_MASK) |
484 (in6p->inp_flow & IPV6_FLOWINFO_MASK);
485 ip6->ip6_vfc = (ip6->ip6_vfc & ~IPV6_VERSION_MASK) |
486 (IPV6_VERSION & IPV6_VERSION_MASK);
489 * ip6_plen will be filled in ip6_output, so not fill it here.
491 ip6->ip6_nxt = in6p->inp_ip_p;
492 ip6->ip6_hlim = in6_selecthlim(in6p, oifp);
494 if (so->so_proto->pr_protocol == IPPROTO_ICMPV6 ||
495 in6p->in6p_cksum != -1) {
500 /* Compute checksum. */
501 if (so->so_proto->pr_protocol == IPPROTO_ICMPV6)
502 off = offsetof(struct icmp6_hdr, icmp6_cksum);
504 off = in6p->in6p_cksum;
505 if (plen < off + 1) {
509 off += sizeof(struct ip6_hdr);
512 while (n && n->m_len <= off) {
518 p = (u_int16_t *)(mtod(n, caddr_t) + off);
520 *p = in6_cksum(m, ip6->ip6_nxt, sizeof(*ip6), plen);
523 error = ip6_output(m, optp, NULL, 0, in6p->in6p_moptions, &oifp, in6p);
524 if (so->so_proto->pr_protocol == IPPROTO_ICMPV6) {
526 icmp6_ifoutstat_inc(oifp, type, code);
527 ICMP6STAT_INC(icp6s_outhist[type]);
529 V_rip6stat.rip6s_opackets++;
538 if (control != NULL) {
539 ip6_clearpktopts(&opt, -1);
547 * Raw IPv6 socket option processing.
550 rip6_ctloutput(struct socket *so, struct sockopt *sopt)
554 if (sopt->sopt_level == IPPROTO_ICMPV6)
556 * XXX: is it better to call icmp6_ctloutput() directly
559 return (icmp6_ctloutput(so, sopt));
560 else if (sopt->sopt_level != IPPROTO_IPV6)
565 switch (sopt->sopt_dir) {
567 switch (sopt->sopt_name) {
575 error = ip6_mrouter_get ? ip6_mrouter_get(so, sopt) :
579 error = ip6_raw_ctloutput(so, sopt);
582 error = ip6_ctloutput(so, sopt);
588 switch (sopt->sopt_name) {
596 error = ip6_mrouter_set ? ip6_mrouter_set(so, sopt) :
600 error = ip6_raw_ctloutput(so, sopt);
603 error = ip6_ctloutput(so, sopt);
613 rip6_attach(struct socket *so, int proto, struct thread *td)
615 INIT_VNET_INET(so->so_vnet);
617 struct icmp6_filter *filter;
621 KASSERT(inp == NULL, ("rip6_attach: inp != NULL"));
623 error = priv_check(td, PRIV_NETINET_RAW);
626 error = soreserve(so, rip_sendspace, rip_recvspace);
629 filter = malloc(sizeof(struct icmp6_filter), M_PCB, M_NOWAIT);
632 INP_INFO_WLOCK(&V_ripcbinfo);
633 error = in_pcballoc(so, &V_ripcbinfo);
635 INP_INFO_WUNLOCK(&V_ripcbinfo);
639 inp = (struct inpcb *)so->so_pcb;
640 INP_INFO_WUNLOCK(&V_ripcbinfo);
641 inp->inp_vflag |= INP_IPV6;
642 inp->inp_ip_p = (long)proto;
643 inp->in6p_hops = -1; /* use kernel default */
644 inp->in6p_cksum = -1;
645 inp->in6p_icmp6filt = filter;
646 ICMP6_FILTER_SETPASSALL(inp->in6p_icmp6filt);
652 rip6_detach(struct socket *so)
654 INIT_VNET_INET(so->so_vnet);
655 INIT_VNET_INET6(so->so_vnet);
659 KASSERT(inp != NULL, ("rip6_detach: inp == NULL"));
661 if (so == V_ip6_mrouter && ip6_mrouter_done)
664 INP_INFO_WLOCK(&V_ripcbinfo);
666 free(inp->in6p_icmp6filt, M_PCB);
669 INP_INFO_WUNLOCK(&V_ripcbinfo);
672 /* XXXRW: This can't ever be called. */
674 rip6_abort(struct socket *so)
679 KASSERT(inp != NULL, ("rip6_abort: inp == NULL"));
681 soisdisconnected(so);
685 rip6_close(struct socket *so)
690 KASSERT(inp != NULL, ("rip6_close: inp == NULL"));
692 soisdisconnected(so);
696 rip6_disconnect(struct socket *so)
701 KASSERT(inp != NULL, ("rip6_disconnect: inp == NULL"));
703 if ((so->so_state & SS_ISCONNECTED) == 0)
705 inp->in6p_faddr = in6addr_any;
711 rip6_bind(struct socket *so, struct sockaddr *nam, struct thread *td)
713 INIT_VNET_NET(so->so_vnet);
714 INIT_VNET_INET(so->so_vnet);
715 INIT_VNET_INET6(so->so_vnet);
717 struct sockaddr_in6 *addr = (struct sockaddr_in6 *)nam;
718 struct ifaddr *ia = NULL;
722 KASSERT(inp != NULL, ("rip6_bind: inp == NULL"));
724 if (nam->sa_len != sizeof(*addr))
726 if ((error = prison_check_ip6(td->td_ucred, &addr->sin6_addr)) != 0)
728 if (TAILQ_EMPTY(&V_ifnet) || addr->sin6_family != AF_INET6)
729 return (EADDRNOTAVAIL);
730 if ((error = sa6_embedscope(addr, V_ip6_use_defzone)) != 0)
733 if (!IN6_IS_ADDR_UNSPECIFIED(&addr->sin6_addr) &&
734 (ia = ifa_ifwithaddr((struct sockaddr *)addr)) == 0)
735 return (EADDRNOTAVAIL);
737 ((struct in6_ifaddr *)ia)->ia6_flags &
738 (IN6_IFF_ANYCAST|IN6_IFF_NOTREADY|
739 IN6_IFF_DETACHED|IN6_IFF_DEPRECATED)) {
740 return (EADDRNOTAVAIL);
742 INP_INFO_WLOCK(&V_ripcbinfo);
744 inp->in6p_laddr = addr->sin6_addr;
746 INP_INFO_WUNLOCK(&V_ripcbinfo);
751 rip6_connect(struct socket *so, struct sockaddr *nam, struct thread *td)
753 INIT_VNET_NET(so->so_vnet);
754 INIT_VNET_INET(so->so_vnet);
755 INIT_VNET_INET6(so->so_vnet);
757 struct sockaddr_in6 *addr = (struct sockaddr_in6 *)nam;
758 struct in6_addr *in6a = NULL;
759 struct ifnet *ifp = NULL;
760 int error = 0, scope_ambiguous = 0;
763 KASSERT(inp != NULL, ("rip6_connect: inp == NULL"));
765 if (nam->sa_len != sizeof(*addr))
767 if (TAILQ_EMPTY(&V_ifnet))
768 return (EADDRNOTAVAIL);
769 if (addr->sin6_family != AF_INET6)
770 return (EAFNOSUPPORT);
773 * Application should provide a proper zone ID or the use of default
774 * zone IDs should be enabled. Unfortunately, some applications do
775 * not behave as it should, so we need a workaround. Even if an
776 * appropriate ID is not determined, we'll see if we can determine
777 * the outgoing interface. If we can, determine the zone ID based on
778 * the interface below.
780 if (addr->sin6_scope_id == 0 && !V_ip6_use_defzone)
782 if ((error = sa6_embedscope(addr, V_ip6_use_defzone)) != 0)
785 INP_INFO_WLOCK(&V_ripcbinfo);
787 /* Source address selection. XXX: need pcblookup? */
788 in6a = in6_selectsrc(addr, inp->in6p_outputopts,
789 inp, NULL, so->so_cred,
793 INP_INFO_WUNLOCK(&V_ripcbinfo);
794 return (error ? error : EADDRNOTAVAIL);
798 if (ifp && scope_ambiguous &&
799 (error = in6_setscope(&addr->sin6_addr, ifp, NULL)) != 0) {
801 INP_INFO_WUNLOCK(&V_ripcbinfo);
804 inp->in6p_faddr = addr->sin6_addr;
805 inp->in6p_laddr = *in6a;
808 INP_INFO_WUNLOCK(&V_ripcbinfo);
813 rip6_shutdown(struct socket *so)
818 KASSERT(inp != NULL, ("rip6_shutdown: inp == NULL"));
827 rip6_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *nam,
828 struct mbuf *control, struct thread *td)
831 struct sockaddr_in6 tmp;
832 struct sockaddr_in6 *dst;
836 KASSERT(inp != NULL, ("rip6_send: inp == NULL"));
838 /* Always copy sockaddr to avoid overwrites. */
840 if (so->so_state & SS_ISCONNECTED) {
846 bzero(&tmp, sizeof(tmp));
847 tmp.sin6_family = AF_INET6;
848 tmp.sin6_len = sizeof(struct sockaddr_in6);
850 bcopy(&inp->in6p_faddr, &tmp.sin6_addr,
851 sizeof(struct in6_addr));
859 if (nam->sa_len != sizeof(struct sockaddr_in6)) {
863 tmp = *(struct sockaddr_in6 *)nam;
866 if (dst->sin6_family == AF_UNSPEC) {
868 * XXX: we allow this case for backward
869 * compatibility to buggy applications that
870 * rely on old (and wrong) kernel behavior.
872 log(LOG_INFO, "rip6 SEND: address family is "
873 "unspec. Assume AF_INET6\n");
874 dst->sin6_family = AF_INET6;
875 } else if (dst->sin6_family != AF_INET6) {
877 return(EAFNOSUPPORT);
880 ret = rip6_output(m, so, dst, control);
884 struct pr_usrreqs rip6_usrreqs = {
885 .pru_abort = rip6_abort,
886 .pru_attach = rip6_attach,
887 .pru_bind = rip6_bind,
888 .pru_connect = rip6_connect,
889 .pru_control = in6_control,
890 .pru_detach = rip6_detach,
891 .pru_disconnect = rip6_disconnect,
892 .pru_peeraddr = in6_getpeeraddr,
893 .pru_send = rip6_send,
894 .pru_shutdown = rip6_shutdown,
895 .pru_sockaddr = in6_getsockaddr,
896 .pru_close = rip6_close,