8c7e2b93a0
Use the MAC address of an interface for the host part of an IPX address and not the MAC address of the first interface for every IPX address. This is more inline with the way others like Novell do it. Mostly Submitted by: "Serge A. Babkin" <babkin@hq.icb.chel.su> Take out the error messages (the ip icmp equivalent) with #ifdef IPXERRORMSGS. This is bogus and as far as I could figure out IPX don't have anything like it. This is a leftover from its XNS heritage. If nobody complains, I will take it out completely in a few weeks. Add some more ipxstat statistics counters. Make ipxprintfs a sysctl variable and off by default. Add IPX Netbios "routing" support. This is off by default and can be switched on with a sysctl knob. General code cleanup to at least use the same style throughout the IPX code, but also be more style(9) conformant. Also make a lot of functions static. If I don't get any complaints I'll bring all of this over to the 2.2 tree in a few weeks.
630 lines
14 KiB
C
630 lines
14 KiB
C
/*
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* Copyright (c) 1995, Mike Mitchell
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* Copyright (c) 1984, 1985, 1986, 1987, 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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* @(#)ipx_usrreq.c
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*
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* $Id: ipx_usrreq.c,v 1.13 1997/05/01 06:21:30 jhay Exp $
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*/
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#include <sys/param.h>
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#include <sys/queue.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/mbuf.h>
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#include <sys/proc.h>
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#include <sys/protosw.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <sys/errno.h>
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#include <sys/stat.h>
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#include <sys/sysctl.h>
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#include <net/if.h>
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#include <net/route.h>
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#include <netinet/in.h>
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#include <netipx/ipx.h>
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#include <netipx/ipx_pcb.h>
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#include <netipx/ipx_if.h>
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#include <netipx/ipx_var.h>
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#include <netipx/ipx_error.h>
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#include <netipx/ipx_ip.h>
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/*
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* IPX protocol implementation.
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*/
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int ipxsendspace = IPXSNDQ;
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SYSCTL_INT(_net_ipx_ipx, OID_AUTO, ipxsendspace, CTLFLAG_RW,
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&ipxsendspace, 0, "");
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int ipxrecvspace = IPXRCVQ;
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SYSCTL_INT(_net_ipx_ipx, OID_AUTO, ipxrecvspace, CTLFLAG_RW,
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&ipxrecvspace, 0, "");
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static int ipx_usr_abort(struct socket *so);
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static int ipx_attach(struct socket *so, int proto, struct proc *p);
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static int ipx_bind(struct socket *so, struct mbuf *nam, struct proc *p);
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static int ipx_connect(struct socket *so, struct mbuf *nam, struct proc *p);
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static int ipx_detach(struct socket *so);
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static int ipx_disconnect(struct socket *so);
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static int ipx_send(struct socket *so, int flags, struct mbuf *m,
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struct mbuf *addr, struct mbuf *control, struct proc *p);
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static int ipx_shutdown(struct socket *so);
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static int ripx_attach(struct socket *so, int proto, struct proc *p);
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static int ipx_output(struct ipxpcb *ipxp, struct mbuf *m0);
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struct pr_usrreqs ipx_usrreqs = {
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ipx_usr_abort, pru_accept_notsupp, ipx_attach, ipx_bind,
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ipx_connect, pru_connect2_notsupp, ipx_control, ipx_detach,
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ipx_disconnect, pru_listen_notsupp, ipx_peeraddr, pru_rcvd_notsupp,
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pru_rcvoob_notsupp, ipx_send, pru_sense_null, ipx_shutdown,
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ipx_sockaddr, sosend, soreceive, soselect
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};
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struct pr_usrreqs ripx_usrreqs = {
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ipx_usr_abort, pru_accept_notsupp, ripx_attach, ipx_bind,
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ipx_connect, pru_connect2_notsupp, ipx_control, ipx_detach,
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ipx_disconnect, pru_listen_notsupp, ipx_peeraddr, pru_rcvd_notsupp,
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pru_rcvoob_notsupp, ipx_send, pru_sense_null, ipx_shutdown,
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ipx_sockaddr, sosend, soreceive, soselect
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};
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/*
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* This may also be called for raw listeners.
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*/
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void
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ipx_input(m, ipxp)
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struct mbuf *m;
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register struct ipxpcb *ipxp;
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{
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register struct ipx *ipx = mtod(m, struct ipx *);
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struct ifnet *ifp = m->m_pkthdr.rcvif;
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struct sockaddr_ipx ipx_ipx;
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if (ipxp == NULL)
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panic("No ipxpcb");
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/*
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* Construct sockaddr format source address.
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* Stuff source address and datagram in user buffer.
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*/
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ipx_ipx.sipx_len = sizeof(ipx_ipx);
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ipx_ipx.sipx_family = AF_IPX;
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ipx_ipx.sipx_addr = ipx->ipx_sna;
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ipx_ipx.sipx_zero[0] = '\0';
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ipx_ipx.sipx_zero[1] = '\0';
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if (ipx_neteqnn(ipx->ipx_sna.x_net, ipx_zeronet) && ifp != NULL) {
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register struct ifaddr *ifa;
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for (ifa = ifp->if_addrhead.tqh_first; ifa != NULL;
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ifa = ifa->ifa_link.tqe_next) {
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if (ifa->ifa_addr->sa_family == AF_IPX) {
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ipx_ipx.sipx_addr.x_net =
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IA_SIPX(ifa)->sipx_addr.x_net;
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break;
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}
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}
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}
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ipxp->ipxp_rpt = ipx->ipx_pt;
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if (!(ipxp->ipxp_flags & IPXP_RAWIN) ) {
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m->m_len -= sizeof(struct ipx);
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m->m_pkthdr.len -= sizeof(struct ipx);
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m->m_data += sizeof(struct ipx);
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}
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if (sbappendaddr(&ipxp->ipxp_socket->so_rcv, (struct sockaddr *)&ipx_ipx,
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m, (struct mbuf *)NULL) == 0)
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goto bad;
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sorwakeup(ipxp->ipxp_socket);
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return;
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bad:
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m_freem(m);
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}
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void
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ipx_abort(ipxp)
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struct ipxpcb *ipxp;
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{
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struct socket *so = ipxp->ipxp_socket;
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ipx_pcbdisconnect(ipxp);
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soisdisconnected(so);
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}
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/*
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* Drop connection, reporting
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* the specified error.
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*/
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void
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ipx_drop(ipxp, errno)
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register struct ipxpcb *ipxp;
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int errno;
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{
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struct socket *so = ipxp->ipxp_socket;
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/*
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* someday, in the IPX world
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* we will generate error protocol packets
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* announcing that the socket has gone away.
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*
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* XXX Probably never. IPX does not have error packets.
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*/
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/*if (TCPS_HAVERCVDSYN(tp->t_state)) {
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tp->t_state = TCPS_CLOSED;
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tcp_output(tp);
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}*/
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so->so_error = errno;
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ipx_pcbdisconnect(ipxp);
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soisdisconnected(so);
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}
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static int
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ipx_output(ipxp, m0)
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struct ipxpcb *ipxp;
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struct mbuf *m0;
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{
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register struct mbuf *m;
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register struct ipx *ipx;
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register struct socket *so;
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register int len = 0;
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register struct route *ro;
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struct mbuf *mprev = NULL;
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/*
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* Calculate data length.
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*/
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for (m = m0; m != NULL; m = m->m_next) {
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mprev = m;
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len += m->m_len;
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}
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/*
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* Make sure packet is actually of even length.
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*/
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if (len & 1) {
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m = mprev;
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if ((m->m_flags & M_EXT) == 0 &&
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(m->m_len + m->m_data < &m->m_dat[MLEN])) {
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m->m_len++;
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} else {
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struct mbuf *m1 = m_get(M_DONTWAIT, MT_DATA);
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if (m1 == NULL) {
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m_freem(m0);
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return (ENOBUFS);
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}
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m1->m_len = 1;
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* mtod(m1, char *) = 0;
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m->m_next = m1;
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}
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m0->m_pkthdr.len++;
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}
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/*
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* Fill in mbuf with extended IPX header
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* and addresses and length put into network format.
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*/
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m = m0;
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if (ipxp->ipxp_flags & IPXP_RAWOUT) {
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ipx = mtod(m, struct ipx *);
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} else {
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M_PREPEND(m, sizeof(struct ipx), M_DONTWAIT);
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if (m == NULL)
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return (ENOBUFS);
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ipx = mtod(m, struct ipx *);
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ipx->ipx_tc = 0;
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ipx->ipx_pt = ipxp->ipxp_dpt;
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ipx->ipx_sna = ipxp->ipxp_laddr;
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ipx->ipx_dna = ipxp->ipxp_faddr;
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len += sizeof(struct ipx);
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}
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ipx->ipx_len = htons((u_short)len);
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if (ipxcksum) {
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ipx->ipx_sum = 0;
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len = ((len - 1) | 1) + 1;
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ipx->ipx_sum = ipx_cksum(m, len);
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} else
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ipx->ipx_sum = 0xffff;
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/*
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* Output datagram.
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*/
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so = ipxp->ipxp_socket;
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if (so->so_options & SO_DONTROUTE)
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return (ipx_outputfl(m, (struct route *)NULL,
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(so->so_options & SO_BROADCAST) | IPX_ROUTETOIF));
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/*
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* Use cached route for previous datagram if
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* possible. If the previous net was the same
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* and the interface was a broadcast medium, or
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* if the previous destination was identical,
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* then we are ok.
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*
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* NB: We don't handle broadcasts because that
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* would require 3 subroutine calls.
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*/
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ro = &ipxp->ipxp_route;
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#ifdef ancient_history
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/*
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* I think that this will all be handled in ipx_pcbconnect!
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*/
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if (ro->ro_rt != NULL) {
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if(ipx_neteq(ipxp->ipxp_lastdst, ipx->ipx_dna)) {
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/*
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* This assumes we have no GH type routes
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*/
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if (ro->ro_rt->rt_flags & RTF_HOST) {
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if (!ipx_hosteq(ipxp->ipxp_lastdst, ipx->ipx_dna))
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goto re_route;
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}
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if ((ro->ro_rt->rt_flags & RTF_GATEWAY) == 0) {
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register struct ipx_addr *dst =
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&satoipx_addr(ro->ro_dst);
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dst->x_host = ipx->ipx_dna.x_host;
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}
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/*
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* Otherwise, we go through the same gateway
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* and dst is already set up.
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*/
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} else {
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re_route:
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RTFREE(ro->ro_rt);
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ro->ro_rt = NULL;
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}
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}
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ipxp->ipxp_lastdst = ipx->ipx_dna;
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#endif /* ancient_history */
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return (ipx_outputfl(m, ro, so->so_options & SO_BROADCAST));
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}
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int
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ipx_ctloutput(req, so, level, name, value, p)
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int req, level;
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struct socket *so;
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int name;
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struct mbuf **value;
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struct proc *p;
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{
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register struct mbuf *m;
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struct ipxpcb *ipxp = sotoipxpcb(so);
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int mask, error = 0;
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if (ipxp == NULL)
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return (EINVAL);
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switch (req) {
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case PRCO_GETOPT:
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if (value == NULL)
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return (EINVAL);
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m = m_get(M_DONTWAIT, MT_DATA);
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if (m == NULL)
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return (ENOBUFS);
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switch (name) {
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case SO_ALL_PACKETS:
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mask = IPXP_ALL_PACKETS;
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goto get_flags;
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case SO_HEADERS_ON_INPUT:
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mask = IPXP_RAWIN;
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goto get_flags;
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case SO_HEADERS_ON_OUTPUT:
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mask = IPXP_RAWOUT;
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get_flags:
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m->m_len = sizeof(short);
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*mtod(m, short *) = ipxp->ipxp_flags & mask;
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break;
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case SO_DEFAULT_HEADERS:
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m->m_len = sizeof(struct ipx);
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{
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register struct ipx *ipx = mtod(m, struct ipx *);
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ipx->ipx_len = 0;
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ipx->ipx_sum = 0;
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ipx->ipx_tc = 0;
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ipx->ipx_pt = ipxp->ipxp_dpt;
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ipx->ipx_dna = ipxp->ipxp_faddr;
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ipx->ipx_sna = ipxp->ipxp_laddr;
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}
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break;
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case SO_SEQNO:
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m->m_len = sizeof(long);
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*mtod(m, long *) = ipx_pexseq++;
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break;
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default:
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error = EINVAL;
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}
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*value = m;
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break;
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case PRCO_SETOPT:
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switch (name) {
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int *ok;
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case SO_ALL_PACKETS:
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mask = IPXP_ALL_PACKETS;
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goto set_head;
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case SO_HEADERS_ON_INPUT:
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mask = IPXP_RAWIN;
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goto set_head;
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case SO_HEADERS_ON_OUTPUT:
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mask = IPXP_RAWOUT;
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set_head:
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if (value && *value) {
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ok = mtod(*value, int *);
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if (*ok)
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ipxp->ipxp_flags |= mask;
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else
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ipxp->ipxp_flags &= ~mask;
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} else error = EINVAL;
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break;
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case SO_DEFAULT_HEADERS:
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{
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register struct ipx *ipx
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= mtod(*value, struct ipx *);
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ipxp->ipxp_dpt = ipx->ipx_pt;
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}
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break;
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#ifdef IPXIP
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case SO_IPXIP_ROUTE:
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error = ipxip_route(so, *value, p);
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break;
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#endif /* IPXIP */
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#ifdef IPXTUNNEL
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case SO_IPXTUNNEL_ROUTE
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error = ipxtun_route(so, *value, p);
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break;
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#endif
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default:
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error = EINVAL;
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}
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if (value && *value)
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m_freem(*value);
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break;
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}
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return (error);
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}
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static int
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ipx_usr_abort(so)
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struct socket *so;
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{
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int s;
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struct ipxpcb *ipxp = sotoipxpcb(so);
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s = splnet();
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ipx_pcbdetach(ipxp);
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splx(s);
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sofree(so);
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soisdisconnected(so);
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return (0);
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}
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static int
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ipx_attach(so, proto, p)
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struct socket *so;
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int proto;
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struct proc *p;
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{
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int error;
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int s;
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struct ipxpcb *ipxp = sotoipxpcb(so);
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if (ipxp != NULL)
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return (EINVAL);
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s = splnet();
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error = ipx_pcballoc(so, &ipxpcb, p);
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splx(s);
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if (error == 0)
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error = soreserve(so, ipxsendspace, ipxrecvspace);
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return (error);
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}
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static int
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ipx_bind(so, nam, p)
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struct socket *so;
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struct mbuf *nam;
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struct proc *p;
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{
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struct ipxpcb *ipxp = sotoipxpcb(so);
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return (ipx_pcbbind(ipxp, nam, p));
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}
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static int
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ipx_connect(so, nam, p)
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struct socket *so;
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struct mbuf *nam;
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struct proc *p;
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{
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int error;
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int s;
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struct ipxpcb *ipxp = sotoipxpcb(so);
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if (!ipx_nullhost(ipxp->ipxp_faddr))
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return (EISCONN);
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s = splnet();
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error = ipx_pcbconnect(ipxp, nam, p);
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splx(s);
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if (error == 0)
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soisconnected(so);
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return (error);
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}
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static int
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ipx_detach(so)
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struct socket *so;
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{
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int s;
|
|
struct ipxpcb *ipxp = sotoipxpcb(so);
|
|
|
|
if (ipxp == NULL)
|
|
return (ENOTCONN);
|
|
s = splnet();
|
|
ipx_pcbdetach(ipxp);
|
|
splx(s);
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ipx_disconnect(so)
|
|
struct socket *so;
|
|
{
|
|
int s;
|
|
struct ipxpcb *ipxp = sotoipxpcb(so);
|
|
|
|
if (ipx_nullhost(ipxp->ipxp_faddr))
|
|
return (ENOTCONN);
|
|
s = splnet();
|
|
ipx_pcbdisconnect(ipxp);
|
|
splx(s);
|
|
soisdisconnected(so);
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
ipx_peeraddr(so, nam)
|
|
struct socket *so;
|
|
struct mbuf *nam;
|
|
{
|
|
struct ipxpcb *ipxp = sotoipxpcb(so);
|
|
|
|
ipx_setpeeraddr(ipxp, nam);
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ipx_send(so, flags, m, nam, control, p)
|
|
struct socket *so;
|
|
int flags;
|
|
struct mbuf *m;
|
|
struct mbuf *nam;
|
|
struct mbuf *control;
|
|
struct proc *p;
|
|
{
|
|
int error;
|
|
struct ipxpcb *ipxp = sotoipxpcb(so);
|
|
struct ipx_addr laddr;
|
|
int s = 0;
|
|
|
|
if (nam != NULL) {
|
|
laddr = ipxp->ipxp_laddr;
|
|
if (!ipx_nullhost(ipxp->ipxp_faddr)) {
|
|
error = EISCONN;
|
|
goto send_release;
|
|
}
|
|
/*
|
|
* Must block input while temporarily connected.
|
|
*/
|
|
s = splnet();
|
|
error = ipx_pcbconnect(ipxp, nam, p);
|
|
if (error) {
|
|
splx(s);
|
|
goto send_release;
|
|
}
|
|
} else {
|
|
if (ipx_nullhost(ipxp->ipxp_faddr)) {
|
|
error = ENOTCONN;
|
|
goto send_release;
|
|
}
|
|
}
|
|
error = ipx_output(ipxp, m);
|
|
m = NULL;
|
|
if (nam != NULL) {
|
|
ipx_pcbdisconnect(ipxp);
|
|
splx(s);
|
|
ipxp->ipxp_laddr.x_host = laddr.x_host;
|
|
ipxp->ipxp_laddr.x_port = laddr.x_port;
|
|
}
|
|
|
|
send_release:
|
|
if (m != NULL)
|
|
m_freem(m);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
ipx_shutdown(so)
|
|
struct socket *so;
|
|
{
|
|
socantsendmore(so);
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
ipx_sockaddr(so, nam)
|
|
struct socket *so;
|
|
struct mbuf *nam;
|
|
{
|
|
struct ipxpcb *ipxp = sotoipxpcb(so);
|
|
|
|
ipx_setsockaddr(ipxp, nam);
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ripx_attach(so, proto, p)
|
|
struct socket *so;
|
|
int proto;
|
|
struct proc *p;
|
|
{
|
|
int error = 0;
|
|
int s;
|
|
struct ipxpcb *ipxp = sotoipxpcb(so);
|
|
|
|
if (p != NULL && (error = suser(p->p_ucred, &p->p_acflag)) != 0)
|
|
return (error);
|
|
s = splnet();
|
|
error = ipx_pcballoc(so, &ipxrawpcb, p);
|
|
splx(s);
|
|
if (error)
|
|
return (error);
|
|
error = soreserve(so, ipxsendspace, ipxrecvspace);
|
|
if (error)
|
|
return (error);
|
|
ipxp = sotoipxpcb(so);
|
|
ipxp->ipxp_faddr.x_host = ipx_broadhost;
|
|
ipxp->ipxp_flags = IPXP_RAWIN | IPXP_RAWOUT;
|
|
return (error);
|
|
}
|