134 lines
3.9 KiB
C
134 lines
3.9 KiB
C
/* $NetBSD: af_ns.c,v 1.2 2005/03/20 01:10:51 thorpej Exp $ */
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/*
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* Copyright (c) 1983, 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. 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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#ifndef INET_ONLY
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: af_ns.c,v 1.2 2005/03/20 01:10:51 thorpej Exp $");
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#endif /* not lint */
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/*
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* XNS support liberally adapted from code written at the University of
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* Maryland principally by James O'Toole and Chris Torek.
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*/
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#include <sys/param.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#define NSIP
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#include <netns/ns.h>
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#include <netns/ns_if.h>
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#include <err.h>
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#include <errno.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include "extern.h"
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#include "af_ns.h"
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#define SNS(x) ((struct sockaddr_ns *) &(x))
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struct sockaddr_ns *snstab[] = {
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SNS(ridreq.ifr_addr), SNS(addreq.ifra_addr),
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SNS(addreq.ifra_mask), SNS(addreq.ifra_broadaddr)
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};
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void
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xns_set_nsip_route(const struct sockaddr *ns, const struct sockaddr *ip)
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{
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struct nsip_req rq;
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int size = sizeof(rq);
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rq.rq_ns = *ns;
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rq.rq_ip = *ip;
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rq.rq_flags = 0;
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if (setsockopt(s, 0, SO_NSIP_ROUTE, &rq, size) < 0)
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warn("encapsulation routing");
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}
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void
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xns_getaddr(const char *addr, int which)
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{
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struct sockaddr_ns *sns = snstab[which];
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sns->sns_family = AF_NS;
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sns->sns_len = sizeof(*sns);
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sns->sns_addr = ns_addr(addr);
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if (which == MASK)
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puts("Attempt to set XNS netmask will be ineffectual");
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}
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void
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xns_status(int force)
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{
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struct sockaddr_ns *sns;
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getsock(AF_NS);
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if (s < 0) {
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if (errno == EPROTONOSUPPORT)
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return;
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err(EXIT_FAILURE, "socket");
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}
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(void) memset(&ifr, 0, sizeof(ifr));
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(void) strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
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if (ioctl(s, SIOCGIFADDR, &ifr) == -1) {
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if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT) {
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if (!force)
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return;
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memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr));
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} else
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warn("SIOCGIFADDR");
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}
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(void) strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
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sns = (struct sockaddr_ns *)&ifr.ifr_addr;
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printf("\tns %s ", ns_ntoa(sns->sns_addr));
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if (flags & IFF_POINTOPOINT) { /* by W. Nesheim@Cornell */
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if (ioctl(s, SIOCGIFDSTADDR, &ifr) == -1) {
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if (errno == EADDRNOTAVAIL)
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memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr));
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else
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warn("SIOCGIFDSTADDR");
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}
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(void) strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
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sns = (struct sockaddr_ns *)&ifr.ifr_dstaddr;
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printf("--> %s ", ns_ntoa(sns->sns_addr));
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}
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printf("\n");
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}
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#endif /* ! INET_ONLY */
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