NetBSD/sbin/ifconfig/af_iso.c

171 lines
4.7 KiB
C

/* $NetBSD: af_iso.c,v 1.3 2006/06/16 23:48:35 elad Exp $ */
/*
* Copyright (c) 1983, 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. 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.
*/
#ifndef INET_ONLY
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: af_iso.c,v 1.3 2006/06/16 23:48:35 elad Exp $");
#endif /* not lint */
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <net/if.h>
#if 0 /* XXX done in af_iso.h */
#define EON
#include <netiso/iso.h>
#include <netiso/iso_var.h>
#endif
#include <err.h>
#include <errno.h>
#include <string.h>
#include <stddef.h>
#include <stdlib.h>
#include <stdio.h>
#include "extern.h"
#include "af_iso.h"
struct iso_ifreq iso_ridreq;
struct iso_aliasreq iso_addreq;
static int nsellength = 1;
#define SISO(x) ((struct sockaddr_iso *) &(x))
struct sockaddr_iso *sisotab[] = {
SISO(iso_ridreq.ifr_Addr), SISO(iso_addreq.ifra_addr),
SISO(iso_addreq.ifra_mask), SISO(iso_addreq.ifra_dstaddr)};
void
iso_getaddr(const char *addr, int which)
{
struct sockaddr_iso *siso = sisotab[which];
siso->siso_addr = *iso_addr(addr);
if (which == MASK) {
siso->siso_len = TSEL(siso) - (char *)(siso);
siso->siso_nlen = 0;
} else {
siso->siso_len = sizeof(*siso);
siso->siso_family = AF_ISO;
}
}
void
setsnpaoffset(const char *val, int d)
{
iso_addreq.ifra_snpaoffset = atoi(val);
}
void
setnsellength(const char *val, int d)
{
nsellength = atoi(val);
if (nsellength < 0)
errx(EXIT_FAILURE, "Negative NSEL length is absurd");
if (afp == 0 || afp->af_af != AF_ISO)
errx(EXIT_FAILURE, "Setting NSEL length valid only for iso");
}
static void
fixnsel(struct sockaddr_iso *siso)
{
if (siso->siso_family == 0)
return;
siso->siso_tlen = nsellength;
}
void
adjust_nsellength(void)
{
fixnsel(sisotab[RIDADDR]);
fixnsel(sisotab[ADDR]);
fixnsel(sisotab[DSTADDR]);
}
void
iso_status(int force)
{
struct sockaddr_iso *siso;
struct iso_ifreq isoifr;
getsock(AF_ISO);
if (s < 0) {
if (errno == EAFNOSUPPORT)
return;
err(EXIT_FAILURE, "socket");
}
(void) memset(&isoifr, 0, sizeof(isoifr));
estrlcpy(isoifr.ifr_name, name, sizeof(isoifr.ifr_name));
if (ioctl(s, SIOCGIFADDR_ISO, &isoifr) == -1) {
if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT) {
if (!force)
return;
(void) memset(&isoifr.ifr_Addr, 0,
sizeof(isoifr.ifr_Addr));
} else
warn("SIOCGIFADDR_ISO");
}
strlcpy(isoifr.ifr_name, name, sizeof isoifr.ifr_name);
siso = &isoifr.ifr_Addr;
printf("\tiso %s ", iso_ntoa(&siso->siso_addr));
if (ioctl(s, SIOCGIFNETMASK_ISO, &isoifr) == -1) {
if (errno == EADDRNOTAVAIL)
memset(&isoifr.ifr_Addr, 0, sizeof(isoifr.ifr_Addr));
else
warn("SIOCGIFNETMASK_ISO");
} else {
if (siso->siso_len > offsetof(struct sockaddr_iso, siso_addr))
siso->siso_addr.isoa_len = siso->siso_len
- offsetof(struct sockaddr_iso, siso_addr);
printf("\n\t\tnetmask %s ", iso_ntoa(&siso->siso_addr));
}
if (flags & IFF_POINTOPOINT) {
if (ioctl(s, SIOCGIFDSTADDR_ISO, &isoifr) == -1) {
if (errno == EADDRNOTAVAIL)
memset(&isoifr.ifr_Addr, 0,
sizeof(isoifr.ifr_Addr));
else
warn("SIOCGIFDSTADDR_ISO");
}
strlcpy(isoifr.ifr_name, name, sizeof (isoifr.ifr_name));
siso = &isoifr.ifr_Addr;
printf("--> %s ", iso_ntoa(&siso->siso_addr));
}
printf("\n");
}
#endif /* ! INET_ONLY */