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PC World 2000 February
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1999-10-31
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6KB
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219 lines
#! /bin/bash
#
# network 1.56 1999/10/18 21:12:03 (David Hinds)
#
# Initialize or shutdown a PCMCIA ethernet adapter
#
# This script should be invoked with two arguments. The first is the
# action to be taken, either "start", "stop", or "restart". The
# second is the network interface name.
#
# The script passes an extended device address to 'network.opts' in
# the ADDRESS variable, to retrieve device-specific configuration
# options. The address format is "scheme,socket,instance,hwaddr"
# where "scheme" is the current PCMCIA device configuration scheme,
# "socket" is the socket number, "instance" is used to number multiple
# interfaces in a single socket, and "hwaddr" is the card's hardware
# ethernet address.
#
if [ -r ./shared ] ; then . ./shared ; else . /etc/pcmcia/shared ; fi
# Get device attributes
get_info $DEVICE
HWADDR=`/sbin/ifconfig $DEVICE | sed -n -e 's/.*addr \([^ ]*\) */\1/p'`
# Load site-specific settings
ADDRESS="$SCHEME,$SOCKET,$INSTANCE,$HWADDR"
start_fn () { return; }
stop_fn () { return; }
. $0.opts
RESOLV=/etc/resolv.conf
case "$ACTION" in
'start')
test "$IF_PORT" && /sbin/ifport $DEVICE $IF_PORT
if is_true $PUMP ; then
/sbin/pump -i $DEVICE
elif is_true $BOOTP ; then
/sbin/ifconfig $DEVICE up 0.0.0.0
/sbin/route add default dev $DEVICE
eval `/sbin/bootpc --bootfile '' --returniffail \
--timeoutwait 10 --dev $DEVICE`
/sbin/route del default
/sbin/ifconfig $DEVICE down
if [ "$GATEWAYS" ] ; then
set - $GATEWAYS ; GATEWAY=$1
fi
elif is_true $DHCP ; then
/sbin/ifconfig $DEVICE up 0.0.0.0
/sbin/route add default dev $DEVICE
if /sbin/dhcpcd -V 2>&1 | grep -q DHCP ; then
/sbin/dhcpcd $DEVICE >/dev/null 2>&1 || exit 1
else
# Jump through hoops for lame 0.70-era dhcpcd
L=/var/run/dhcp-lock-$DEVICE
/bin/echo "#!/bin/sh\nrm $L" > $L ; chmod +x $L
/sbin/dhcpcd -c $L $DEVICE >/dev/null 2>&1
for t in 0 1 2 3 4 5 6 7 8 9 ; do
sleep 2 ; if [ ! -e $L ] ; then break ; fi
done
rm -f $L
if [ -e /etc/dhcpc/resolv.conf ] ; then
echo "# $DEVICE begin" > $RESOLV.N
cat /etc/dhcpc/resolv.conf >> $RESOLV.N
echo "# $DEVICE end" >> $RESOLV.N
cat $RESOLV >> $RESOLV.N ; mv $RESOLV.N $RESOLV
fi
fi
fi
if is_true $DHCLIENT ; then
/sbin/dhclient $DEVICE
fi
if [ "$IPADDR" ] ; then
# Basic network setup
BC=${BROADCAST:+broadcast $BROADCAST}
/sbin/ifconfig $DEVICE up $IPADDR netmask $NETMASK $BC
if [ "$NETWORK" ] ; then
/sbin/ifuser $DEVICE $NETWORK || \
/sbin/route add -net $NETWORK netmask $NETMASK dev $DEVICE
elif [ "$GATEWAY" ] ; then
/sbin/ifuser $DEVICE $GATEWAY || \
/sbin/route add $GATEWAY $DEVICE
fi
test "$GATEWAY" && /sbin/route add default gw $GATEWAY metric 1
# Update DNS stuff
if [ "$DOMAIN$SEARCH$DNSSRVS$DNS_1$DNS_2$DNS_3" ] ; then
echo "# $DEVICE begin" > $RESOLV.N
test "$DOMAIN" && echo "domain $DOMAIN" >> $RESOLV.N
test "$SEARCH" && echo "search $SEARCH" >> $RESOLV.N
for DNS in ${DNSSRVS:-$DNS_1 $DNS_2 $DNS_3} ; do
echo "nameserver $DNS" >> $RESOLV.N
done
echo "# $DEVICE end" >> $RESOLV.N
sed -e "/# $DEVICE begin/,/# $DEVICE end/d" $RESOLV >> $RESOLV.N
mv $RESOLV.N $RESOLV
fi
# Handle NFS mounts
if [ "$MOUNTS" ] ; then
for MT in $MOUNTS ; do mount -v $MT ; done
fi
fi
if [ "$IPX_NETNUM" ] ; then
ipx_interface add $DEVICE $IPX_FRAME $IPX_NETNUM
fi
if test -x /sbin/ipmasq && istrue "$IPMASQ" ; then
/sbin/ipmasq
fi
start_fn $DEVICE
;;
'stop')
stop_fn $DEVICE
if is_true $PUMP || is_true $BOOTP || is_true $DHCP || is_true $DHCLIENT || [ "$IPADDR" ] ; then
# Shut down all NFS mounts on this interface
nfsstop ()
{
local HOST MT
if read HOST MT ; then
nfsstop
if /sbin/ifuser $DEVICE $HOST ; then
fuser -s -k -m $MT
umount -v $MT
fi
fi
}
mount -t nfs | sed -e 's/:.* on \(.*\) type .*/ \1/' | nfsstop
test "$IPX_NETNUM" && ipx_interface del $DEVICE $IPX_FRAME
# Remove nameservers
if fgrep -q "# $DEVICE begin" $RESOLV ; then
sed -e "/# $DEVICE begin/,/# $DEVICE end/d" $RESOLV > $RESOLV.N
mv $RESOLV.N $RESOLV
fi
if is_true $PUMP ; then
pump -r -i $DEVICE
elif is_true $DHCP ; then
kill -TERM `cat /var/run/dhcpcd-$DEVICE.pid`
sleep 2
/sbin/dhcpcd -V 2>&1 | grep -q DHCP || \
rm -f /var/run/dhcpcd-$DEVICE.pid
fi
if is_true $DHCLIENT ; then
kill -TERM `cat /var/run/dhclient.pid`
rm -f /var/run/dhcpcd-$DEVICE.pid
fi
fi
/sbin/ifconfig $DEVICE down
;;
'check')
/sbin/ifconfig $DEVICE | grep -q RUNNING || exit 0
# Check for any in-use NFS mounts
nfscheck ()
{
while read HOST MT ; do
/sbin/ifuser $DEVICE $HOST && fuser -sm $MT && exit 1
done
}
mount -t nfs | sed -e 's/:.* on \(.*\) type .*/ \1/' | nfscheck
# Check for active TCP or UDP connections
getdests ()
{
IFS=" :" ; read A ; read A
while read A B C D E HOST PORT STATE ; do
if [ "$STATE" != "FIN_WAIT1" -a "$STATE" != "FIN_WAIT2" \
-a "$STATE" != "CLOSE_WAIT" -a "$STATE" != "TIME_WAIT" \
-a "$HOST" != "127.0.0.1" -a "$HOST" != "0.0.0.0" \
-a "$PORT" != "*" ] ; then
echo $HOST
fi
done
}
DESTS=`netstat -ntuw | getdests`
/sbin/ifuser $DEVICE $DESTS && exit 1
;;
'cksum')
chk_simple "$3,$SOCKET,$INSTANCE,$HWADDR" || exit 1
;;
'restart')
test "$IPADDR" && /sbin/ifconfig $DEVICE down up
;;
'suspend'|'resume')
;;
*)
usage
;;
esac
exit 0