diff options
Diffstat (limited to 'sys/netinet6/udp6_usrreq.c')
| -rw-r--r-- | sys/netinet6/udp6_usrreq.c | 772 |
1 files changed, 772 insertions, 0 deletions
diff --git a/sys/netinet6/udp6_usrreq.c b/sys/netinet6/udp6_usrreq.c new file mode 100644 index 0000000..fd642cb --- /dev/null +++ b/sys/netinet6/udp6_usrreq.c @@ -0,0 +1,772 @@ +/* $FreeBSD$ */ +/* $KAME: udp6_usrreq.c,v 1.27 2001/05/21 05:45:10 jinmei Exp $ */ + +/* + * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* + * Copyright (c) 1982, 1986, 1989, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)udp_var.h 8.1 (Berkeley) 6/10/93 + */ + +#include "opt_inet.h" +#include "opt_inet6.h" +#include "opt_ipsec.h" + +#include <sys/param.h> +#include <sys/errno.h> +#include <sys/kernel.h> +#include <sys/lock.h> +#include <sys/mbuf.h> +#include <sys/proc.h> +#include <sys/protosw.h> +#include <sys/signalvar.h> +#include <sys/socket.h> +#include <sys/socketvar.h> +#include <sys/stat.h> +#include <sys/sx.h> +#include <sys/sysctl.h> +#include <sys/syslog.h> +#include <sys/systm.h> + +#include <net/if.h> +#include <net/if_types.h> +#include <net/route.h> + +#include <netinet/in.h> +#include <netinet/in_pcb.h> +#include <netinet/in_systm.h> +#include <netinet/in_var.h> +#include <netinet/ip.h> +#include <netinet/ip6.h> +#include <netinet/icmp6.h> +#include <netinet/ip_var.h> +#include <netinet/udp.h> +#include <netinet/udp_var.h> +#include <netinet6/ip6protosw.h> +#include <netinet6/ip6_var.h> +#include <netinet6/in6_pcb.h> +#include <netinet6/udp6_var.h> + +#ifdef IPSEC +#include <netinet6/ipsec.h> +#include <netinet6/ipsec6.h> +#endif /* IPSEC */ + +#ifdef FAST_IPSEC +#include <netipsec/ipsec.h> +#include <netipsec/ipsec6.h> +#endif /* FAST_IPSEC */ + +/* + * UDP protocol inplementation. + * Per RFC 768, August, 1980. + */ + +extern struct protosw inetsw[]; +static int in6_mcmatch __P((struct inpcb *, struct in6_addr *, struct ifnet *)); +static int udp6_detach __P((struct socket *so)); + +static int +in6_mcmatch(in6p, ia6, ifp) + struct inpcb *in6p; + register struct in6_addr *ia6; + struct ifnet *ifp; +{ + struct ip6_moptions *im6o = in6p->in6p_moptions; + struct in6_multi_mship *imm; + + if (im6o == NULL) + return 0; + + for (imm = im6o->im6o_memberships.lh_first; imm != NULL; + imm = imm->i6mm_chain.le_next) { + if ((ifp == NULL || + imm->i6mm_maddr->in6m_ifp == ifp) && + IN6_ARE_ADDR_EQUAL(&imm->i6mm_maddr->in6m_addr, + ia6)) + return 1; + } + return 0; +} + +int +udp6_input(mp, offp, proto) + struct mbuf **mp; + int *offp, proto; +{ + struct mbuf *m = *mp; + register struct ip6_hdr *ip6; + register struct udphdr *uh; + register struct inpcb *in6p; + struct mbuf *opts = NULL; + int off = *offp; + int plen, ulen; + struct sockaddr_in6 udp_in6; + + IP6_EXTHDR_CHECK(m, off, sizeof(struct udphdr), IPPROTO_DONE); + + ip6 = mtod(m, struct ip6_hdr *); + + if (faithprefix_p != NULL && (*faithprefix_p)(&ip6->ip6_dst)) { + /* XXX send icmp6 host/port unreach? */ + m_freem(m); + return IPPROTO_DONE; + } + + udpstat.udps_ipackets++; + + plen = ntohs(ip6->ip6_plen) - off + sizeof(*ip6); + uh = (struct udphdr *)((caddr_t)ip6 + off); + ulen = ntohs((u_short)uh->uh_ulen); + + if (plen != ulen) { + udpstat.udps_badlen++; + goto bad; + } + + /* + * Checksum extended UDP header and data. + */ + if (uh->uh_sum == 0) + udpstat.udps_nosum++; + else if (in6_cksum(m, IPPROTO_UDP, off, ulen) != 0) { + udpstat.udps_badsum++; + goto bad; + } + + if (IN6_IS_ADDR_MULTICAST(&ip6->ip6_dst)) { + struct inpcb *last; + + /* + * Deliver a multicast datagram to all sockets + * for which the local and remote addresses and ports match + * those of the incoming datagram. This allows more than + * one process to receive multicasts on the same port. + * (This really ought to be done for unicast datagrams as + * well, but that would cause problems with existing + * applications that open both address-specific sockets and + * a wildcard socket listening to the same port -- they would + * end up receiving duplicates of every unicast datagram. + * Those applications open the multiple sockets to overcome an + * inadequacy of the UDP socket interface, but for backwards + * compatibility we avoid the problem here rather than + * fixing the interface. Maybe 4.5BSD will remedy this?) + */ + + /* + * In a case that laddr should be set to the link-local + * address (this happens in RIPng), the multicast address + * specified in the received packet does not match with + * laddr. To cure this situation, the matching is relaxed + * if the receiving interface is the same as one specified + * in the socket and if the destination multicast address + * matches one of the multicast groups specified in the socket. + */ + + /* + * Construct sockaddr format source address. + */ + init_sin6(&udp_in6, m); /* general init */ + udp_in6.sin6_port = uh->uh_sport; + /* + * KAME note: traditionally we dropped udpiphdr from mbuf here. + * We need udphdr for IPsec processing so we do that later. + */ + + /* + * Locate pcb(s) for datagram. + * (Algorithm copied from raw_intr().) + */ + last = NULL; + LIST_FOREACH(in6p, &udb, inp_list) { + if ((in6p->inp_vflag & INP_IPV6) == 0) + continue; + if (in6p->in6p_lport != uh->uh_dport) + continue; + if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_laddr)) { + if (!IN6_ARE_ADDR_EQUAL(&in6p->in6p_laddr, + &ip6->ip6_dst) && + !in6_mcmatch(in6p, &ip6->ip6_dst, + m->m_pkthdr.rcvif)) + continue; + } + if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_faddr)) { + if (!IN6_ARE_ADDR_EQUAL(&in6p->in6p_faddr, + &ip6->ip6_src) || + in6p->in6p_fport != uh->uh_sport) + continue; + } + + if (last != NULL) { + struct mbuf *n; + +#ifdef IPSEC + /* + * Check AH/ESP integrity. + */ + if (ipsec6_in_reject(m, last)) + ipsec6stat.in_polvio++; + /* do not inject data into pcb */ + else +#endif /* IPSEC */ +#ifdef FAST_IPSEC + /* + * Check AH/ESP integrity. + */ + if (ipsec6_in_reject(m, last)) + ; + else +#endif /* FAST_IPSEC */ + if ((n = m_copy(m, 0, M_COPYALL)) != NULL) { + /* + * KAME NOTE: do not + * m_copy(m, offset, ...) above. + * sbappendaddr() expects M_PKTHDR, + * and m_copy() will copy M_PKTHDR + * only if offset is 0. + */ + if (last->in6p_flags & IN6P_CONTROLOPTS + || last->in6p_socket->so_options & SO_TIMESTAMP) + ip6_savecontrol(last, &opts, + ip6, n); + + m_adj(n, off + sizeof(struct udphdr)); + if (sbappendaddr(&last->in6p_socket->so_rcv, + (struct sockaddr *)&udp_in6, + n, opts) == 0) { + m_freem(n); + if (opts) + m_freem(opts); + udpstat.udps_fullsock++; + } else + sorwakeup(last->in6p_socket); + opts = NULL; + } + } + last = in6p; + /* + * Don't look for additional matches if this one does + * not have either the SO_REUSEPORT or SO_REUSEADDR + * socket options set. This heuristic avoids searching + * through all pcbs in the common case of a non-shared + * port. It assumes that an application will never + * clear these options after setting them. + */ + if ((last->in6p_socket->so_options & + (SO_REUSEPORT|SO_REUSEADDR)) == 0) + break; + } + + if (last == NULL) { + /* + * No matching pcb found; discard datagram. + * (No need to send an ICMP Port Unreachable + * for a broadcast or multicast datgram.) + */ + udpstat.udps_noport++; + udpstat.udps_noportmcast++; + goto bad; + } +#ifdef IPSEC + /* + * Check AH/ESP integrity. + */ + if (ipsec6_in_reject(m, last)) { + ipsec6stat.in_polvio++; + goto bad; + } +#endif /* IPSEC */ +#ifdef FAST_IPSEC + /* + * Check AH/ESP integrity. + */ + if (ipsec6_in_reject(m, last)) { + goto bad; + } +#endif /* FAST_IPSEC */ + if (last->in6p_flags & IN6P_CONTROLOPTS + || last->in6p_socket->so_options & SO_TIMESTAMP) + ip6_savecontrol(last, &opts, ip6, m); + + m_adj(m, off + sizeof(struct udphdr)); + if (sbappendaddr(&last->in6p_socket->so_rcv, + (struct sockaddr *)&udp_in6, + m, opts) == 0) { + udpstat.udps_fullsock++; + goto bad; + } + sorwakeup(last->in6p_socket); + return IPPROTO_DONE; + } + /* + * Locate pcb for datagram. + */ + in6p = in6_pcblookup_hash(&udbinfo, &ip6->ip6_src, uh->uh_sport, + &ip6->ip6_dst, uh->uh_dport, 1, + m->m_pkthdr.rcvif); + if (in6p == 0) { + if (log_in_vain) { + char buf[INET6_ADDRSTRLEN]; + + strcpy(buf, ip6_sprintf(&ip6->ip6_dst)); + log(LOG_INFO, + "Connection attempt to UDP [%s]:%d from [%s]:%d\n", + buf, ntohs(uh->uh_dport), + ip6_sprintf(&ip6->ip6_src), ntohs(uh->uh_sport)); + } + udpstat.udps_noport++; + if (m->m_flags & M_MCAST) { + printf("UDP6: M_MCAST is set in a unicast packet.\n"); + udpstat.udps_noportmcast++; + goto bad; + } + icmp6_error(m, ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_NOPORT, 0); + return IPPROTO_DONE; + } +#ifdef IPSEC + /* + * Check AH/ESP integrity. + */ + if (ipsec6_in_reject(m, in6p)) { + ipsec6stat.in_polvio++; + goto bad; + } +#endif /* IPSEC */ +#ifdef FAST_IPSEC + /* + * Check AH/ESP integrity. + */ + if (ipsec6_in_reject(m, in6p)) { + goto bad; + } +#endif /* FAST_IPSEC */ + + /* + * Construct sockaddr format source address. + * Stuff source address and datagram in user buffer. + */ + init_sin6(&udp_in6, m); /* general init */ + udp_in6.sin6_port = uh->uh_sport; + if (in6p->in6p_flags & IN6P_CONTROLOPTS + || in6p->in6p_socket->so_options & SO_TIMESTAMP) + ip6_savecontrol(in6p, &opts, ip6, m); + m_adj(m, off + sizeof(struct udphdr)); + if (sbappendaddr(&in6p->in6p_socket->so_rcv, + (struct sockaddr *)&udp_in6, + m, opts) == 0) { + udpstat.udps_fullsock++; + goto bad; + } + sorwakeup(in6p->in6p_socket); + return IPPROTO_DONE; +bad: + if (m) + m_freem(m); + if (opts) + m_freem(opts); + return IPPROTO_DONE; +} + +void +udp6_ctlinput(cmd, sa, d) + int cmd; + struct sockaddr *sa; + void *d; +{ + struct udphdr uh; + struct ip6_hdr *ip6; + struct mbuf *m; + int off = 0; + struct ip6ctlparam *ip6cp = NULL; + const struct sockaddr_in6 *sa6_src = NULL; + struct inpcb *(*notify) __P((struct inpcb *, int)) = udp_notify; + struct udp_portonly { + u_int16_t uh_sport; + u_int16_t uh_dport; + } *uhp; + + if (sa->sa_family != AF_INET6 || + sa->sa_len != sizeof(struct sockaddr_in6)) + return; + + if ((unsigned)cmd >= PRC_NCMDS) + return; + if (PRC_IS_REDIRECT(cmd)) + notify = in6_rtchange, d = NULL; + else if (cmd == PRC_HOSTDEAD) + d = NULL; + else if (inet6ctlerrmap[cmd] == 0) + return; + + /* if the parameter is from icmp6, decode it. */ + if (d != NULL) { + ip6cp = (struct ip6ctlparam *)d; + m = ip6cp->ip6c_m; + ip6 = ip6cp->ip6c_ip6; + off = ip6cp->ip6c_off; + sa6_src = ip6cp->ip6c_src; + } else { + m = NULL; + ip6 = NULL; + sa6_src = &sa6_any; + } + + if (ip6) { + /* + * XXX: We assume that when IPV6 is non NULL, + * M and OFF are valid. + */ + + /* check if we can safely examine src and dst ports */ + if (m->m_pkthdr.len < off + sizeof(*uhp)) + return; + + bzero(&uh, sizeof(uh)); + m_copydata(m, off, sizeof(*uhp), (caddr_t)&uh); + + (void) in6_pcbnotify(&udb, sa, uh.uh_dport, + (struct sockaddr *)ip6cp->ip6c_src, + uh.uh_sport, cmd, notify); + } else + (void) in6_pcbnotify(&udb, sa, 0, + (const struct sockaddr *)sa6_src, + 0, cmd, notify); +} + +static int +udp6_getcred(SYSCTL_HANDLER_ARGS) +{ + struct xucred xuc; + struct sockaddr_in6 addrs[2]; + struct inpcb *inp; + int error, s; + + error = suser(req->td); + if (error) + return (error); + + if (req->newlen != sizeof(addrs)) + return (EINVAL); + if (req->oldlen != sizeof(struct xucred)) + return (EINVAL); + error = SYSCTL_IN(req, addrs, sizeof(addrs)); + if (error) + return (error); + s = splnet(); + inp = in6_pcblookup_hash(&udbinfo, &addrs[1].sin6_addr, + addrs[1].sin6_port, + &addrs[0].sin6_addr, addrs[0].sin6_port, + 1, NULL); + if (!inp || !inp->inp_socket) { + error = ENOENT; + goto out; + } + cru2x(inp->inp_socket->so_cred, &xuc); + error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred)); +out: + splx(s); + return (error); +} + +SYSCTL_PROC(_net_inet6_udp6, OID_AUTO, getcred, CTLTYPE_OPAQUE|CTLFLAG_RW, + 0, 0, + udp6_getcred, "S,xucred", "Get the xucred of a UDP6 connection"); + +static int +udp6_abort(struct socket *so) +{ + struct inpcb *inp; + int s; + + inp = sotoinpcb(so); + if (inp == 0) + return EINVAL; /* ??? possible? panic instead? */ + soisdisconnected(so); + s = splnet(); + in6_pcbdetach(inp); + splx(s); + return 0; +} + +static int +udp6_attach(struct socket *so, int proto, struct thread *td) +{ + struct inpcb *inp; + int s, error; + + inp = sotoinpcb(so); + if (inp != 0) + return EINVAL; + + if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) { + error = soreserve(so, udp_sendspace, udp_recvspace); + if (error) + return error; + } + s = splnet(); + error = in_pcballoc(so, &udbinfo, td); + splx(s); + if (error) + return error; + inp = (struct inpcb *)so->so_pcb; + inp->inp_vflag |= INP_IPV6; + if (!ip6_v6only) + inp->inp_vflag |= INP_IPV4; + inp->in6p_hops = -1; /* use kernel default */ + inp->in6p_cksum = -1; /* just to be sure */ + /* + * XXX: ugly!! + * IPv4 TTL initialization is necessary for an IPv6 socket as well, + * because the socket may be bound to an IPv6 wildcard address, + * which may match an IPv4-mapped IPv6 address. + */ + inp->inp_ip_ttl = ip_defttl; + return 0; +} + +static int +udp6_bind(struct socket *so, struct sockaddr *nam, struct thread *td) +{ + struct inpcb *inp; + int s, error; + + inp = sotoinpcb(so); + if (inp == 0) + return EINVAL; + + inp->inp_vflag &= ~INP_IPV4; + inp->inp_vflag |= INP_IPV6; + if ((inp->inp_flags & IN6P_IPV6_V6ONLY) == 0) { + struct sockaddr_in6 *sin6_p; + + sin6_p = (struct sockaddr_in6 *)nam; + + if (IN6_IS_ADDR_UNSPECIFIED(&sin6_p->sin6_addr)) + inp->inp_vflag |= INP_IPV4; + else if (IN6_IS_ADDR_V4MAPPED(&sin6_p->sin6_addr)) { + struct sockaddr_in sin; + + in6_sin6_2_sin(&sin, sin6_p); + inp->inp_vflag |= INP_IPV4; + inp->inp_vflag &= ~INP_IPV6; + s = splnet(); + error = in_pcbbind(inp, (struct sockaddr *)&sin, td); + splx(s); + return error; + } + } + + s = splnet(); + error = in6_pcbbind(inp, nam, td); + splx(s); + return error; +} + +static int +udp6_connect(struct socket *so, struct sockaddr *nam, struct thread *td) +{ + struct inpcb *inp; + int s, error; + + inp = sotoinpcb(so); + if (inp == 0) + return EINVAL; + + if ((inp->inp_flags & IN6P_IPV6_V6ONLY) == 0) { + struct sockaddr_in6 *sin6_p; + + sin6_p = (struct sockaddr_in6 *)nam; + if (IN6_IS_ADDR_V4MAPPED(&sin6_p->sin6_addr)) { + struct sockaddr_in sin; + + if (inp->inp_faddr.s_addr != INADDR_ANY) + return EISCONN; + in6_sin6_2_sin(&sin, sin6_p); + s = splnet(); + error = in_pcbconnect(inp, (struct sockaddr *)&sin, td); + splx(s); + if (error == 0) { + inp->inp_vflag |= INP_IPV4; + inp->inp_vflag &= ~INP_IPV6; + soisconnected(so); + } + return error; + } + } + if (!IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_faddr)) + return EISCONN; + s = splnet(); + error = in6_pcbconnect(inp, nam, td); + splx(s); + if (error == 0) { + if (!ip6_v6only) { /* should be non mapped addr */ + inp->inp_vflag &= ~INP_IPV4; + inp->inp_vflag |= INP_IPV6; + } + soisconnected(so); + } + return error; +} + +static int +udp6_detach(struct socket *so) +{ + struct inpcb *inp; + int s; + + inp = sotoinpcb(so); + if (inp == 0) + return EINVAL; + s = splnet(); + in6_pcbdetach(inp); + splx(s); + return 0; +} + +static int +udp6_disconnect(struct socket *so) +{ + struct inpcb *inp; + int s; + + inp = sotoinpcb(so); + if (inp == 0) + return EINVAL; + + if (inp->inp_vflag & INP_IPV4) { + struct pr_usrreqs *pru; + + pru = inetsw[ip_protox[IPPROTO_UDP]].pr_usrreqs; + return ((*pru->pru_disconnect)(so)); + } + + if (IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_faddr)) + return ENOTCONN; + + s = splnet(); + in6_pcbdisconnect(inp); + inp->in6p_laddr = in6addr_any; + splx(s); + so->so_state &= ~SS_ISCONNECTED; /* XXX */ + return 0; +} + +static int +udp6_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, + struct mbuf *control, struct thread *td) +{ + struct inpcb *inp; + int error = 0; + + inp = sotoinpcb(so); + if (inp == 0) { + error = EINVAL; + goto bad; + } + + if (addr) { + if (addr->sa_len != sizeof(struct sockaddr_in6)) { + error = EINVAL; + goto bad; + } + if (addr->sa_family != AF_INET6) { + error = EAFNOSUPPORT; + goto bad; + } + } + + if (!ip6_v6only) { + int hasv4addr; + struct sockaddr_in6 *sin6 = 0; + + if (addr == 0) + hasv4addr = (inp->inp_vflag & INP_IPV4); + else { + sin6 = (struct sockaddr_in6 *)addr; + hasv4addr = IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr) + ? 1 : 0; + } + if (hasv4addr) { + struct pr_usrreqs *pru; + + if (sin6) + in6_sin6_2_sin_in_sock(addr); + pru = inetsw[ip_protox[IPPROTO_UDP]].pr_usrreqs; + error = ((*pru->pru_send)(so, flags, m, addr, control, + td)); + /* addr will just be freed in sendit(). */ + return error; + } + } + + return udp6_output(inp, m, addr, control, td); + + bad: + m_freem(m); + return(error); +} + +struct pr_usrreqs udp6_usrreqs = { + udp6_abort, pru_accept_notsupp, udp6_attach, udp6_bind, udp6_connect, + pru_connect2_notsupp, in6_control, udp6_detach, udp6_disconnect, + pru_listen_notsupp, in6_mapped_peeraddr, pru_rcvd_notsupp, + pru_rcvoob_notsupp, udp6_send, pru_sense_null, udp_shutdown, + in6_mapped_sockaddr, sosend, soreceive, sopoll +}; |
