326 lines
8.1 KiB
C
326 lines
8.1 KiB
C
/* $NetBSD: device.c,v 1.3 1997/10/16 23:24:28 lukem Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1993-95 Mats O Jansson. 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 Mats O Jansson.
|
|
* 4. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#ifndef lint
|
|
__RCSID("$NetBSD: device.c,v 1.3 1997/10/16 23:24:28 lukem Exp $");
|
|
#endif
|
|
|
|
#include "os.h"
|
|
#include "common.h"
|
|
#include "device.h"
|
|
#include "mopdef.h"
|
|
#include "pf.h"
|
|
|
|
struct if_info *iflist; /* Interface List */
|
|
|
|
void deviceOpen __P((char *, u_short, int));
|
|
|
|
#ifdef DEV_NEW_CONF
|
|
/*
|
|
* Return ethernet adress for interface
|
|
*/
|
|
|
|
void
|
|
deviceEthAddr(ifname, eaddr)
|
|
char *ifname;
|
|
u_char *eaddr;
|
|
{
|
|
char inbuf[8192];
|
|
struct ifconf ifc;
|
|
struct ifreq *ifr;
|
|
struct sockaddr_dl *sdl;
|
|
int fd;
|
|
int i, len;
|
|
|
|
/* We cannot use SIOCGIFADDR on the BPF descriptor.
|
|
We must instead get all the interfaces with SIOCGIFCONF
|
|
and find the right one. */
|
|
|
|
/* Use datagram socket to get Ethernet address. */
|
|
if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
|
|
syslog(LOG_ERR, "deviceEthAddr: socket: %m");
|
|
exit(1);
|
|
}
|
|
|
|
ifc.ifc_len = sizeof(inbuf);
|
|
ifc.ifc_buf = inbuf;
|
|
if (ioctl(fd, SIOCGIFCONF, (caddr_t)&ifc) < 0 ||
|
|
ifc.ifc_len < sizeof(struct ifreq)) {
|
|
syslog(LOG_ERR, "deviceEthAddr: SIOGIFCONF: %m");
|
|
exit(1);
|
|
}
|
|
ifr = ifc.ifc_req;
|
|
for (i = 0; i < ifc.ifc_len;
|
|
i += len, ifr = (struct ifreq *)((caddr_t)ifr + len)) {
|
|
len = sizeof(ifr->ifr_name) + ifr->ifr_addr.sa_len;
|
|
sdl = (struct sockaddr_dl *)&ifr->ifr_addr;
|
|
if (sdl->sdl_family != AF_LINK || sdl->sdl_type != IFT_ETHER ||
|
|
sdl->sdl_alen != 6)
|
|
continue;
|
|
if (!strncmp(ifr->ifr_name, ifname, sizeof(ifr->ifr_name))) {
|
|
memmove((caddr_t)eaddr, (caddr_t)LLADDR(sdl), 6);
|
|
return;
|
|
}
|
|
}
|
|
|
|
syslog(LOG_ERR, "deviceEthAddr: Never saw interface `%s'!", ifname);
|
|
exit(1);
|
|
}
|
|
#endif /* DEV_NEW_CONF */
|
|
|
|
void
|
|
deviceOpen(ifname, proto, trans)
|
|
char *ifname;
|
|
u_short proto;
|
|
int trans;
|
|
{
|
|
struct if_info *p, tmp;
|
|
|
|
strcpy(tmp.if_name,ifname);
|
|
tmp.iopen = pfInit;
|
|
|
|
switch (proto) {
|
|
case MOP_K_PROTO_RC:
|
|
tmp.read = mopReadRC;
|
|
tmp.fd = mopOpenRC(&tmp, trans);
|
|
break;
|
|
case MOP_K_PROTO_DL:
|
|
tmp.read = mopReadDL;
|
|
tmp.fd = mopOpenDL(&tmp, trans);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (tmp.fd != -1) {
|
|
|
|
p = (struct if_info *)malloc(sizeof(*p));
|
|
if (p == 0) {
|
|
syslog(LOG_ERR, "deviceOpen: malloc: %m");
|
|
exit(1);
|
|
}
|
|
|
|
p->next = iflist;
|
|
iflist = p;
|
|
|
|
strcpy(p->if_name,tmp.if_name);
|
|
p->iopen = tmp.iopen;
|
|
p->write = pfWrite;
|
|
p->read = tmp.read;
|
|
memset((char *)p->eaddr, 0, sizeof(p->eaddr));
|
|
p->fd = tmp.fd;
|
|
|
|
#ifdef DEV_NEW_CONF
|
|
deviceEthAddr(p->if_name,&p->eaddr[0]);
|
|
#else
|
|
p->eaddr[0]= tmp.eaddr[0];
|
|
p->eaddr[1]= tmp.eaddr[1];
|
|
p->eaddr[2]= tmp.eaddr[2];
|
|
p->eaddr[3]= tmp.eaddr[3];
|
|
p->eaddr[4]= tmp.eaddr[4];
|
|
p->eaddr[5]= tmp.eaddr[5];
|
|
#endif /* DEV_NEW_CONF */
|
|
|
|
}
|
|
}
|
|
|
|
void
|
|
deviceInitOne(ifname)
|
|
char *ifname;
|
|
{
|
|
char interface[IFNAME_SIZE];
|
|
struct if_info *p;
|
|
int trans;
|
|
#ifdef _AIX
|
|
char dev[IFNAME_SIZE];
|
|
int unit,j;
|
|
|
|
unit = 0;
|
|
for (j = 0; j < strlen(ifname); j++) {
|
|
if (isalpha(ifname[j])) {
|
|
dev[j] = ifname[j];
|
|
} else {
|
|
if (isdigit(ifname[j])) {
|
|
unit = unit*10 + ifname[j] - '0';
|
|
dev[j] = '\0';
|
|
}
|
|
}
|
|
}
|
|
|
|
if ((strlen(dev) == 2) &&
|
|
(dev[0] == 'e') &&
|
|
((dev[1] == 'n') || (dev[1] == 't'))) {
|
|
sprintf(interface,"ent%d\0",unit);
|
|
} else {
|
|
sprintf(interface,"%s%d\0",dev,unit);
|
|
}
|
|
#else
|
|
sprintf(interface,"%s",ifname);
|
|
#endif /* _AIX */
|
|
|
|
/* Ok, init it just once */
|
|
|
|
p = iflist;
|
|
for (p = iflist; p; p = p->next) {
|
|
if (strcmp(p->if_name,interface) == 0) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
syslog(LOG_INFO, "Initialized %s", interface);
|
|
|
|
/* Ok, get transport information */
|
|
|
|
trans = pfTrans(interface);
|
|
|
|
#ifndef NORC
|
|
/* Start with MOP Remote Console */
|
|
|
|
switch (trans) {
|
|
case TRANS_ETHER:
|
|
deviceOpen(interface,MOP_K_PROTO_RC,TRANS_ETHER);
|
|
break;
|
|
case TRANS_8023:
|
|
deviceOpen(interface,MOP_K_PROTO_RC,TRANS_8023);
|
|
break;
|
|
case TRANS_ETHER+TRANS_8023:
|
|
deviceOpen(interface,MOP_K_PROTO_RC,TRANS_ETHER);
|
|
deviceOpen(interface,MOP_K_PROTO_RC,TRANS_8023);
|
|
break;
|
|
case TRANS_ETHER+TRANS_8023+TRANS_AND:
|
|
deviceOpen(interface,MOP_K_PROTO_RC,TRANS_ETHER+TRANS_8023);
|
|
break;
|
|
}
|
|
#endif
|
|
|
|
#ifndef NODL
|
|
/* and next MOP Dump/Load */
|
|
|
|
switch (trans) {
|
|
case TRANS_ETHER:
|
|
deviceOpen(interface,MOP_K_PROTO_DL,TRANS_ETHER);
|
|
break;
|
|
case TRANS_8023:
|
|
deviceOpen(interface,MOP_K_PROTO_DL,TRANS_8023);
|
|
break;
|
|
case TRANS_ETHER+TRANS_8023:
|
|
deviceOpen(interface,MOP_K_PROTO_DL,TRANS_ETHER);
|
|
deviceOpen(interface,MOP_K_PROTO_DL,TRANS_8023);
|
|
break;
|
|
case TRANS_ETHER+TRANS_8023+TRANS_AND:
|
|
deviceOpen(interface,MOP_K_PROTO_DL,TRANS_ETHER+TRANS_8023);
|
|
break;
|
|
}
|
|
#endif
|
|
|
|
}
|
|
|
|
/*
|
|
* Initialize all "candidate" interfaces that are in the system
|
|
* configuration list. A "candidate" is up, not loopback and not
|
|
* point to point.
|
|
*/
|
|
void
|
|
deviceInitAll()
|
|
{
|
|
#ifdef DEV_NEW_CONF
|
|
char inbuf[8192];
|
|
struct ifconf ifc;
|
|
struct ifreq *ifr;
|
|
struct sockaddr_dl *sdl;
|
|
int fd;
|
|
int i, len;
|
|
|
|
if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
|
|
syslog(LOG_ERR, "deviceInitAll: socket: %m");
|
|
exit(1);
|
|
}
|
|
|
|
ifc.ifc_len = sizeof(inbuf);
|
|
ifc.ifc_buf = inbuf;
|
|
if (ioctl(fd, SIOCGIFCONF, (caddr_t)&ifc) < 0 ||
|
|
ifc.ifc_len < sizeof(struct ifreq)) {
|
|
syslog(LOG_ERR, "deviceInitAll: SIOCGIFCONF: %m");
|
|
exit(1);
|
|
}
|
|
ifr = ifc.ifc_req;
|
|
for (i = 0; i < ifc.ifc_len;
|
|
i += len, ifr = (struct ifreq *)((caddr_t)ifr + len)) {
|
|
len = sizeof(ifr->ifr_name) + ifr->ifr_addr.sa_len;
|
|
sdl = (struct sockaddr_dl *)&ifr->ifr_addr;
|
|
if (sdl->sdl_family != AF_LINK || sdl->sdl_type != IFT_ETHER ||
|
|
sdl->sdl_alen != 6)
|
|
continue;
|
|
if (ioctl(fd, SIOCGIFFLAGS, (caddr_t)ifr) < 0) {
|
|
syslog(LOG_ERR, "deviceInitAll: SIOCGIFFLAGS: %m");
|
|
continue;
|
|
}
|
|
if ((ifr->ifr_flags &
|
|
(IFF_UP | IFF_LOOPBACK | IFF_POINTOPOINT)) != IFF_UP)
|
|
continue;
|
|
deviceInitOne(ifr->ifr_name);
|
|
}
|
|
(void) close(fd);
|
|
#else
|
|
int fd;
|
|
int n;
|
|
struct ifreq ibuf[8], *ifrp;
|
|
struct ifconf ifc;
|
|
|
|
if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
|
|
syslog(LOG_ERR, "deviceInitAll: old socket: %m");
|
|
exit(1);
|
|
}
|
|
ifc.ifc_len = sizeof ibuf;
|
|
ifc.ifc_buf = (caddr_t)ibuf;
|
|
if (ioctl(fd, SIOCGIFCONF, (char *)&ifc) < 0 ||
|
|
ifc.ifc_len < sizeof(struct ifreq)) {
|
|
syslog(LOG_ERR, "deviceInitAll: old SIOCGIFCONF: %m");
|
|
exit(1);
|
|
}
|
|
ifrp = ibuf;
|
|
n = ifc.ifc_len / sizeof(*ifrp);
|
|
for (; --n >= 0; ++ifrp) {
|
|
if (ioctl(fd, SIOCGIFFLAGS, (char *)ifrp) < 0) {
|
|
continue;
|
|
}
|
|
if (/*(ifrp->ifr_flags & IFF_UP) == 0 ||*/
|
|
ifrp->ifr_flags & IFF_LOOPBACK ||
|
|
ifrp->ifr_flags & IFF_POINTOPOINT)
|
|
continue;
|
|
deviceInitOne(ifrp->ifr_name);
|
|
}
|
|
|
|
(void) close(fd);
|
|
#endif /* DEV_NEW_CONF */
|
|
}
|