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SimpleLinux/rootfs/usr/share/udhcpc/default.script
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2024-08-19 18:00:45 +07:00

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#!/bin/sh
. /etc/init.d/colors.sh
[ -z "$1" ] && printf "$URED** ERROR: should be called from udhcpc\n$RESET" && exit 1
RESOLF_CONF="/etc/resolv.conf"
[ -n "$broadcast" ] && BROADCAST="broadcast $broadcast"
[ -n "$subnet" ] && NETMASK="netmask $subnet"
# return 0 if root is mounted on a network filesystem
root_if_nfs() {
grep -qe '^/dev/root.*\(nfs\|smbfs\|ncp\|coda\) .*' /proc/mounts
}
have_bin_ip=0
if [ -x /bin/ip ]; then
have_bin_ip=1
fi
case "$1" in
deconfig)
if ! rootfs_is_nfs; then
if [ $have_bin_ip -eq 1 ]; then
ip a flush dev $interface
ip l set dev $interface up
else
/sbin/ifconfig $interface 0.0.0.0
fi
fi
;;
renew|bound)
if [ $have_bin_ip -eq 1 ]; then
ip a add dev $interface local $ip/$mask $BROADCAST
else
/sbin/ifconfig $interface $ip $BROADCAST $NETMASK
fi
if [ -n "$router" ]; then
if ! root_if_nfs; then
if [ $have_bin_ip -eq 1 ]; then
while ip r del default 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=0
for i in $router; do
if [ $have_bin_ip -eq 1 ]; then
ip r add default via $i metric $((metric++))
else
route add default gw $i dev $interface metric $((metric++)) 2>/dev/null
fi
done
fi
echo -n > $RESOLF_CONF
[ -n "$domain" ] && echo search $domain >> $RESOLF_CONF
for i in $dns; do
echo adding dns $i
echo nameserver $i >> $RESOLF_CONF
done
;;
esac
exit 0