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#!/bin/sh
# udhcpc script edited by Tim Riker <Tim@Rikers.org>
[ -z "$1" ] && echo "Error: should be called from udhcpc" && exit 1
RESOLV_CONF="/etc/resolv.conf"
[ -n "$subnet" ] && NETMASK="netmask $subnet"
# return 0 if root is mounted on a network filesystem
root_is_nfs() {
sed -n 's/^[^ ]* \([^ ]*\) \([^ ]*\) .*$/\1 \2/p' /proc/mounts |
grep -q "^/ \(nfs\|smbfs\|ncp\|coda\)$"
}
have_bin_ip=0
if [ -x /sbin/ip ]; then
have_bin_ip=1
BROADCAST="broadcast +"
fi
[ -n "$broadcast" ] && BROADCAST="broadcast $broadcast"
case "$1" in
deconfig)
if [ -x /sbin/resolvconf ]; then
/sbin/resolvconf -d "${interface}.udhcpc"
fi
if ! root_is_nfs ; then
if [ $have_bin_ip -eq 1 ]; then
ip addr flush dev $interface
ip link set dev $interface up
else
/sbin/ifconfig $interface 0.0.0.0
fi
fi
;;
renew|bound)
if [ $have_bin_ip -eq 1 ]; then
ip addr add dev $interface local $ip/$mask $BROADCAST
else
/sbin/ifconfig $interface $ip $BROADCAST $NETMASK
fi
if [ -n "$router" ] ; then
if ! root_is_nfs ; then
if [ $have_bin_ip -eq 1 ]; then
while ip route del default dev $interface 2>/dev/null ; do
:
done
else
while route del default gw 0.0.0.0 dev $interface 2>/dev/null ; do
:
done
fi
fi
metric=10
for i in $router ; do
if [ $have_bin_ip -eq 1 ]; then
ip route add default via $i metric $metric
else
route add default gw $i dev $interface metric $metric 2>/dev/null
fi
metric=$(($metric + 1))
done
fi
# Update resolver configuration file
R=""
[ -n "$domain" ] && R="domain $domain
"
for i in $dns; do
echo "$0: Adding DNS $i"
R="${R}nameserver $i
"
done
if [ -x /sbin/resolvconf ]; then
echo -n "$R" | /sbin/resolvconf -a "${interface}.udhcpc"
else
echo -n "$R" > "$RESOLV_CONF"
fi
;;
esac
exit 0
|
