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724 lines
18 KiB
C
724 lines
18 KiB
C
/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* Copyright (c) 1982, 1986, 1988, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)raw_ip.c 8.2 (Berkeley) 1/4/94
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*/
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#include "opt_ipsec.h"
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#include "opt_inet6.h"
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#include <sys/param.h>
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#include <sys/malloc.h>
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#include <sys/proc.h>
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#include <sys/mbuf.h>
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#include <sys/socket.h>
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#include <sys/protosw.h>
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#include <sys/socketvar.h>
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#include <sys/errno.h>
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#include <sys/systm.h>
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#include <net/if.h>
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#include <net/route.h>
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#include <net/if_types.h>
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#include <netinet/in.h>
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#include <netinet/in_var.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip6.h>
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#include <netinet6/ip6_var.h>
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#include <netinet6/ip6_mroute.h>
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#include <netinet/icmp6.h>
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#include <netinet/in_pcb.h>
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#include <netinet6/in6_pcb.h>
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#include <netinet6/nd6.h>
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#include <netinet6/ip6protosw.h>
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#ifdef ENABLE_DEFAULT_SCOPE
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#include <netinet6/scope6_var.h>
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#endif
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#include <netinet6/raw_ip6.h>
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#ifdef IPSEC
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#include <netinet6/ipsec.h>
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#include <netinet6/ipsec6.h>
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#endif /*IPSEC*/
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#include <machine/stdarg.h>
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#define satosin6(sa) ((struct sockaddr_in6 *)(sa))
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#define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa))
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/*
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* Raw interface to IP6 protocol.
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*/
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extern struct inpcbhead ripcb;
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extern struct inpcbinfo ripcbinfo;
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extern u_long rip_sendspace;
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extern u_long rip_recvspace;
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struct rip6stat rip6stat;
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/*
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* Setup generic address and protocol structures
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* for raw_input routine, then pass them along with
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* mbuf chain.
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*/
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int
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rip6_input(mp, offp, proto)
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struct mbuf **mp;
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int *offp, proto;
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{
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struct mbuf *m = *mp;
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register struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *);
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register struct inpcb *in6p;
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struct inpcb *last = 0;
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struct mbuf *opts = NULL;
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struct sockaddr_in6 rip6src;
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rip6stat.rip6s_ipackets++;
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if (faithprefix_p != NULL && (*faithprefix_p)(&ip6->ip6_dst)) {
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/* XXX send icmp6 host/port unreach? */
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m_freem(m);
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return IPPROTO_DONE;
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}
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init_sin6(&rip6src, m); /* general init */
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LIST_FOREACH(in6p, &ripcb, inp_list) {
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if ((in6p->in6p_vflag & INP_IPV6) == 0)
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continue;
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if (in6p->in6p_ip6_nxt &&
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in6p->in6p_ip6_nxt != proto)
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continue;
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if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_laddr) &&
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!IN6_ARE_ADDR_EQUAL(&in6p->in6p_laddr, &ip6->ip6_dst))
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continue;
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if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_faddr) &&
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!IN6_ARE_ADDR_EQUAL(&in6p->in6p_faddr, &ip6->ip6_src))
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continue;
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if (in6p->in6p_cksum != -1) {
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rip6stat.rip6s_isum++;
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if (in6_cksum(m, ip6->ip6_nxt, *offp,
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m->m_pkthdr.len - *offp)) {
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rip6stat.rip6s_badsum++;
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continue;
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}
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}
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if (last) {
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struct mbuf *n = m_copy(m, 0, (int)M_COPYALL);
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#ifdef IPSEC
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/*
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* Check AH/ESP integrity.
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*/
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if (n && ipsec6_in_reject_so(n, last->inp_socket)) {
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m_freem(n);
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ipsec6stat.in_polvio++;
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/* do not inject data into pcb */
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} else
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#endif /*IPSEC*/
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if (n) {
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if (last->in6p_flags & IN6P_CONTROLOPTS ||
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last->in6p_socket->so_options & SO_TIMESTAMP)
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ip6_savecontrol(last, &opts, ip6, n);
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/* strip intermediate headers */
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m_adj(n, *offp);
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if (sbappendaddr(&last->in6p_socket->so_rcv,
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(struct sockaddr *)&rip6src,
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n, opts) == 0) {
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m_freem(n);
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if (opts)
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m_freem(opts);
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rip6stat.rip6s_fullsock++;
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} else
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sorwakeup(last->in6p_socket);
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opts = NULL;
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}
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}
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last = in6p;
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}
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#ifdef IPSEC
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/*
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* Check AH/ESP integrity.
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*/
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if (last && ipsec6_in_reject_so(m, last->inp_socket)) {
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m_freem(m);
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ipsec6stat.in_polvio++;
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ip6stat.ip6s_delivered--;
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/* do not inject data into pcb */
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} else
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#endif /*IPSEC*/
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if (last) {
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if (last->in6p_flags & IN6P_CONTROLOPTS ||
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last->in6p_socket->so_options & SO_TIMESTAMP)
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ip6_savecontrol(last, &opts, ip6, m);
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/* strip intermediate headers */
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m_adj(m, *offp);
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if (sbappendaddr(&last->in6p_socket->so_rcv,
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(struct sockaddr *)&rip6src, m, opts) == 0) {
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m_freem(m);
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if (opts)
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m_freem(opts);
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rip6stat.rip6s_fullsock++;
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} else
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sorwakeup(last->in6p_socket);
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} else {
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rip6stat.rip6s_nosock++;
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if (m->m_flags & M_MCAST)
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rip6stat.rip6s_nosockmcast++;
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if (proto == IPPROTO_NONE)
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m_freem(m);
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else {
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char *prvnxtp = ip6_get_prevhdr(m, *offp); /* XXX */
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icmp6_error(m, ICMP6_PARAM_PROB,
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ICMP6_PARAMPROB_NEXTHEADER,
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prvnxtp - mtod(m, char *));
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}
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ip6stat.ip6s_delivered--;
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}
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return IPPROTO_DONE;
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}
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void
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rip6_ctlinput(cmd, sa, d)
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int cmd;
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struct sockaddr *sa;
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void *d;
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{
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struct ip6_hdr *ip6;
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struct mbuf *m;
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int off = 0;
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struct ip6ctlparam *ip6cp = NULL;
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const struct sockaddr_in6 *sa6_src = NULL;
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void (*notify) __P((struct inpcb *, int)) = in6_rtchange;
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if (sa->sa_family != AF_INET6 ||
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sa->sa_len != sizeof(struct sockaddr_in6))
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return;
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if ((unsigned)cmd >= PRC_NCMDS)
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return;
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if (PRC_IS_REDIRECT(cmd))
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notify = in6_rtchange, d = NULL;
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else if (cmd == PRC_HOSTDEAD)
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d = NULL;
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else if (inet6ctlerrmap[cmd] == 0)
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return;
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/* if the parameter is from icmp6, decode it. */
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if (d != NULL) {
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ip6cp = (struct ip6ctlparam *)d;
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m = ip6cp->ip6c_m;
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ip6 = ip6cp->ip6c_ip6;
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off = ip6cp->ip6c_off;
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sa6_src = ip6cp->ip6c_src;
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} else {
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m = NULL;
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ip6 = NULL;
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sa6_src = &sa6_any;
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}
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(void) in6_pcbnotify(&ripcb, sa, 0, (struct sockaddr *)sa6_src,
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0, cmd, notify);
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}
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/*
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* Generate IPv6 header and pass packet to ip6_output.
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* Tack on options user may have setup with control call.
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*/
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int
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#if __STDC__
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rip6_output(struct mbuf *m, ...)
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#else
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rip6_output(m, va_alist)
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struct mbuf *m;
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va_dcl
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#endif
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{
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struct socket *so;
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struct sockaddr_in6 *dstsock;
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struct mbuf *control;
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struct in6_addr *dst;
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struct ip6_hdr *ip6;
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struct inpcb *in6p;
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u_int plen = m->m_pkthdr.len;
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int error = 0;
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struct ip6_pktopts opt, *optp = 0;
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struct ifnet *oifp = NULL;
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int type = 0, code = 0; /* for ICMPv6 output statistics only */
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int priv = 0;
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va_list ap;
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va_start(ap, m);
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so = va_arg(ap, struct socket *);
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dstsock = va_arg(ap, struct sockaddr_in6 *);
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control = va_arg(ap, struct mbuf *);
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va_end(ap);
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in6p = sotoin6pcb(so);
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priv = 0;
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if (so->so_cred->cr_uid == 0)
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priv = 1;
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dst = &dstsock->sin6_addr;
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if (control) {
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if ((error = ip6_setpktoptions(control, &opt, priv, 0)) != 0)
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goto bad;
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optp = &opt;
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} else
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optp = in6p->in6p_outputopts;
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/*
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* For an ICMPv6 packet, we should know its type and code
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* to update statistics.
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*/
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if (so->so_proto->pr_protocol == IPPROTO_ICMPV6) {
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struct icmp6_hdr *icmp6;
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if (m->m_len < sizeof(struct icmp6_hdr) &&
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(m = m_pullup(m, sizeof(struct icmp6_hdr))) == NULL) {
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error = ENOBUFS;
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goto bad;
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}
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icmp6 = mtod(m, struct icmp6_hdr *);
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type = icmp6->icmp6_type;
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code = icmp6->icmp6_code;
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}
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M_PREPEND(m, sizeof(*ip6), M_TRYWAIT);
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ip6 = mtod(m, struct ip6_hdr *);
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|
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/*
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* Next header might not be ICMP6 but use its pseudo header anyway.
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*/
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ip6->ip6_dst = *dst;
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|
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/*
|
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* If the scope of the destination is link-local, embed the interface
|
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* index in the address.
|
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*
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* XXX advanced-api value overrides sin6_scope_id
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*/
|
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if (IN6_IS_SCOPE_LINKLOCAL(&ip6->ip6_dst)) {
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struct in6_pktinfo *pi;
|
|
|
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/*
|
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* XXX Boundary check is assumed to be already done in
|
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* ip6_setpktoptions().
|
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*/
|
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if (optp && (pi = optp->ip6po_pktinfo) && pi->ipi6_ifindex) {
|
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ip6->ip6_dst.s6_addr16[1] = htons(pi->ipi6_ifindex);
|
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oifp = ifnet_byindex(pi->ipi6_ifindex);
|
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} else if (IN6_IS_ADDR_MULTICAST(&ip6->ip6_dst) &&
|
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in6p->in6p_moptions &&
|
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in6p->in6p_moptions->im6o_multicast_ifp) {
|
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oifp = in6p->in6p_moptions->im6o_multicast_ifp;
|
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ip6->ip6_dst.s6_addr16[1] = htons(oifp->if_index);
|
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} else if (dstsock->sin6_scope_id) {
|
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/* boundary check */
|
|
if (dstsock->sin6_scope_id < 0
|
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|| if_index < dstsock->sin6_scope_id) {
|
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error = ENXIO; /* XXX EINVAL? */
|
|
goto bad;
|
|
}
|
|
ip6->ip6_dst.s6_addr16[1]
|
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= htons(dstsock->sin6_scope_id & 0xffff);/*XXX*/
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Source address selection.
|
|
*/
|
|
{
|
|
struct in6_addr *in6a;
|
|
|
|
if ((in6a = in6_selectsrc(dstsock, optp,
|
|
in6p->in6p_moptions,
|
|
&in6p->in6p_route,
|
|
&in6p->in6p_laddr,
|
|
&error)) == 0) {
|
|
if (error == 0)
|
|
error = EADDRNOTAVAIL;
|
|
goto bad;
|
|
}
|
|
ip6->ip6_src = *in6a;
|
|
if (in6p->in6p_route.ro_rt)
|
|
oifp = ifnet_byindex(in6p->in6p_route.ro_rt->rt_ifp->if_index);
|
|
}
|
|
ip6->ip6_flow = (ip6->ip6_flow & ~IPV6_FLOWINFO_MASK) |
|
|
(in6p->in6p_flowinfo & IPV6_FLOWINFO_MASK);
|
|
ip6->ip6_vfc = (ip6->ip6_vfc & ~IPV6_VERSION_MASK) |
|
|
(IPV6_VERSION & IPV6_VERSION_MASK);
|
|
/* ip6_plen will be filled in ip6_output, so not fill it here. */
|
|
ip6->ip6_nxt = in6p->in6p_ip6_nxt;
|
|
ip6->ip6_hlim = in6_selecthlim(in6p, oifp);
|
|
|
|
if (so->so_proto->pr_protocol == IPPROTO_ICMPV6 ||
|
|
in6p->in6p_cksum != -1) {
|
|
struct mbuf *n;
|
|
int off;
|
|
u_int16_t *p;
|
|
|
|
/* compute checksum */
|
|
if (so->so_proto->pr_protocol == IPPROTO_ICMPV6)
|
|
off = offsetof(struct icmp6_hdr, icmp6_cksum);
|
|
else
|
|
off = in6p->in6p_cksum;
|
|
if (plen < off + 1) {
|
|
error = EINVAL;
|
|
goto bad;
|
|
}
|
|
off += sizeof(struct ip6_hdr);
|
|
|
|
n = m;
|
|
while (n && n->m_len <= off) {
|
|
off -= n->m_len;
|
|
n = n->m_next;
|
|
}
|
|
if (!n)
|
|
goto bad;
|
|
p = (u_int16_t *)(mtod(n, caddr_t) + off);
|
|
*p = 0;
|
|
*p = in6_cksum(m, ip6->ip6_nxt, sizeof(*ip6), plen);
|
|
}
|
|
|
|
#ifdef IPSEC
|
|
if (ipsec_setsocket(m, so) != 0) {
|
|
error = ENOBUFS;
|
|
goto bad;
|
|
}
|
|
#endif /*IPSEC*/
|
|
|
|
error = ip6_output(m, optp, &in6p->in6p_route, 0,
|
|
in6p->in6p_moptions, &oifp);
|
|
if (so->so_proto->pr_protocol == IPPROTO_ICMPV6) {
|
|
if (oifp)
|
|
icmp6_ifoutstat_inc(oifp, type, code);
|
|
icmp6stat.icp6s_outhist[type]++;
|
|
} else
|
|
rip6stat.rip6s_opackets++;
|
|
|
|
goto freectl;
|
|
|
|
bad:
|
|
if (m)
|
|
m_freem(m);
|
|
|
|
freectl:
|
|
if (optp == &opt && optp->ip6po_rthdr && optp->ip6po_route.ro_rt)
|
|
RTFREE(optp->ip6po_route.ro_rt);
|
|
if (control) {
|
|
if (optp == &opt)
|
|
ip6_clearpktopts(optp, 0, -1);
|
|
m_freem(control);
|
|
}
|
|
return(error);
|
|
}
|
|
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/*
|
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* Raw IPv6 socket option processing.
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*/
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int
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rip6_ctloutput(so, sopt)
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struct socket *so;
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struct sockopt *sopt;
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{
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int error;
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if (sopt->sopt_level == IPPROTO_ICMPV6)
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/*
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* XXX: is it better to call icmp6_ctloutput() directly
|
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* from protosw?
|
|
*/
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return(icmp6_ctloutput(so, sopt));
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else if (sopt->sopt_level != IPPROTO_IPV6)
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return (EINVAL);
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error = 0;
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|
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switch (sopt->sopt_dir) {
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case SOPT_GET:
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switch (sopt->sopt_name) {
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case MRT6_INIT:
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case MRT6_DONE:
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case MRT6_ADD_MIF:
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case MRT6_DEL_MIF:
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case MRT6_ADD_MFC:
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case MRT6_DEL_MFC:
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case MRT6_PIM:
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error = ip6_mrouter_get(so, sopt);
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break;
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default:
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error = ip6_ctloutput(so, sopt);
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break;
|
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}
|
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break;
|
|
|
|
case SOPT_SET:
|
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switch (sopt->sopt_name) {
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case MRT6_INIT:
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case MRT6_DONE:
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case MRT6_ADD_MIF:
|
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case MRT6_DEL_MIF:
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case MRT6_ADD_MFC:
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case MRT6_DEL_MFC:
|
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case MRT6_PIM:
|
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error = ip6_mrouter_set(so, sopt);
|
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break;
|
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default:
|
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error = ip6_ctloutput(so, sopt);
|
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break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
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rip6_attach(struct socket *so, int proto, struct thread *td)
|
|
{
|
|
struct inpcb *inp;
|
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int error, s;
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|
|
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inp = sotoinpcb(so);
|
|
if (inp)
|
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panic("rip6_attach");
|
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if (td && (error = suser_td(td)) != 0)
|
|
return error;
|
|
|
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error = soreserve(so, rip_sendspace, rip_recvspace);
|
|
if (error)
|
|
return error;
|
|
s = splnet();
|
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error = in_pcballoc(so, &ripcbinfo, td);
|
|
splx(s);
|
|
if (error)
|
|
return error;
|
|
inp = (struct inpcb *)so->so_pcb;
|
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inp->inp_vflag |= INP_IPV6;
|
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inp->in6p_ip6_nxt = (long)proto;
|
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inp->in6p_hops = -1; /* use kernel default */
|
|
inp->in6p_cksum = -1;
|
|
MALLOC(inp->in6p_icmp6filt, struct icmp6_filter *,
|
|
sizeof(struct icmp6_filter), M_PCB, M_NOWAIT);
|
|
ICMP6_FILTER_SETPASSALL(inp->in6p_icmp6filt);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
rip6_detach(struct socket *so)
|
|
{
|
|
struct inpcb *inp;
|
|
|
|
inp = sotoinpcb(so);
|
|
if (inp == 0)
|
|
panic("rip6_detach");
|
|
/* xxx: RSVP */
|
|
if (so == ip6_mrouter)
|
|
ip6_mrouter_done();
|
|
if (inp->in6p_icmp6filt) {
|
|
FREE(inp->in6p_icmp6filt, M_PCB);
|
|
inp->in6p_icmp6filt = NULL;
|
|
}
|
|
in6_pcbdetach(inp);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
rip6_abort(struct socket *so)
|
|
{
|
|
soisdisconnected(so);
|
|
return rip6_detach(so);
|
|
}
|
|
|
|
static int
|
|
rip6_disconnect(struct socket *so)
|
|
{
|
|
struct inpcb *inp = sotoinpcb(so);
|
|
|
|
if ((so->so_state & SS_ISCONNECTED) == 0)
|
|
return ENOTCONN;
|
|
inp->in6p_faddr = in6addr_any;
|
|
return rip6_abort(so);
|
|
}
|
|
|
|
static int
|
|
rip6_bind(struct socket *so, struct sockaddr *nam, struct thread *td)
|
|
{
|
|
struct inpcb *inp = sotoinpcb(so);
|
|
struct sockaddr_in6 *addr = (struct sockaddr_in6 *)nam;
|
|
struct ifaddr *ia = NULL;
|
|
|
|
if (nam->sa_len != sizeof(*addr))
|
|
return EINVAL;
|
|
|
|
if (TAILQ_EMPTY(&ifnet) || addr->sin6_family != AF_INET6)
|
|
return EADDRNOTAVAIL;
|
|
#ifdef ENABLE_DEFAULT_SCOPE
|
|
if (addr->sin6_scope_id == 0) { /* not change if specified */
|
|
addr->sin6_scope_id = scope6_addr2default(&addr->sin6_addr);
|
|
}
|
|
#endif
|
|
if (!IN6_IS_ADDR_UNSPECIFIED(&addr->sin6_addr) &&
|
|
(ia = ifa_ifwithaddr((struct sockaddr *)addr)) == 0)
|
|
return EADDRNOTAVAIL;
|
|
if (ia &&
|
|
((struct in6_ifaddr *)ia)->ia6_flags &
|
|
(IN6_IFF_ANYCAST|IN6_IFF_NOTREADY|
|
|
IN6_IFF_DETACHED|IN6_IFF_DEPRECATED)) {
|
|
return(EADDRNOTAVAIL);
|
|
}
|
|
inp->in6p_laddr = addr->sin6_addr;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
rip6_connect(struct socket *so, struct sockaddr *nam, struct thread *td)
|
|
{
|
|
struct inpcb *inp = sotoinpcb(so);
|
|
struct sockaddr_in6 *addr = (struct sockaddr_in6 *)nam;
|
|
struct in6_addr *in6a = NULL;
|
|
int error = 0;
|
|
#ifdef ENABLE_DEFAULT_SCOPE
|
|
struct sockaddr_in6 tmp;
|
|
#endif
|
|
|
|
if (nam->sa_len != sizeof(*addr))
|
|
return EINVAL;
|
|
if (TAILQ_EMPTY(&ifnet))
|
|
return EADDRNOTAVAIL;
|
|
if (addr->sin6_family != AF_INET6)
|
|
return EAFNOSUPPORT;
|
|
#ifdef ENABLE_DEFAULT_SCOPE
|
|
if (addr->sin6_scope_id == 0) { /* not change if specified */
|
|
/* avoid overwrites */
|
|
tmp = *addr;
|
|
addr = &tmp;
|
|
addr->sin6_scope_id = scope6_addr2default(&addr->sin6_addr);
|
|
}
|
|
#endif
|
|
/* Source address selection. XXX: need pcblookup? */
|
|
in6a = in6_selectsrc(addr, inp->in6p_outputopts,
|
|
inp->in6p_moptions, &inp->in6p_route,
|
|
&inp->in6p_laddr, &error);
|
|
if (in6a == NULL)
|
|
return (error ? error : EADDRNOTAVAIL);
|
|
inp->in6p_laddr = *in6a;
|
|
inp->in6p_faddr = addr->sin6_addr;
|
|
soisconnected(so);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
rip6_shutdown(struct socket *so)
|
|
{
|
|
socantsendmore(so);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
rip6_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *nam,
|
|
struct mbuf *control, struct thread *td)
|
|
{
|
|
struct inpcb *inp = sotoinpcb(so);
|
|
struct sockaddr_in6 tmp;
|
|
struct sockaddr_in6 *dst;
|
|
|
|
/* always copy sockaddr to avoid overwrites */
|
|
if (so->so_state & SS_ISCONNECTED) {
|
|
if (nam) {
|
|
m_freem(m);
|
|
return EISCONN;
|
|
}
|
|
/* XXX */
|
|
bzero(&tmp, sizeof(tmp));
|
|
tmp.sin6_family = AF_INET6;
|
|
tmp.sin6_len = sizeof(struct sockaddr_in6);
|
|
bcopy(&inp->in6p_faddr, &tmp.sin6_addr,
|
|
sizeof(struct in6_addr));
|
|
dst = &tmp;
|
|
} else {
|
|
if (nam == NULL) {
|
|
m_freem(m);
|
|
return ENOTCONN;
|
|
}
|
|
tmp = *(struct sockaddr_in6 *)nam;
|
|
dst = &tmp;
|
|
}
|
|
#ifdef ENABLE_DEFAULT_SCOPE
|
|
if (dst->sin6_scope_id == 0) { /* not change if specified */
|
|
dst->sin6_scope_id = scope6_addr2default(&dst->sin6_addr);
|
|
}
|
|
#endif
|
|
return rip6_output(m, so, dst, control);
|
|
}
|
|
|
|
struct pr_usrreqs rip6_usrreqs = {
|
|
rip6_abort, pru_accept_notsupp, rip6_attach, rip6_bind, rip6_connect,
|
|
pru_connect2_notsupp, in6_control, rip6_detach, rip6_disconnect,
|
|
pru_listen_notsupp, in6_setpeeraddr, pru_rcvd_notsupp,
|
|
pru_rcvoob_notsupp, rip6_send, pru_sense_null, rip6_shutdown,
|
|
in6_setsockaddr, sosend, soreceive, sopoll
|
|
};
|