8fb574fdc8
The (u)dhcpc hook installed by the busybox package configures the network and exits. If we want to do anything further with a DHCP lease, we'd have to replace the script entirely. This change introduces a .d directory for hooks (based on the script filename), which are executed after the interface configuration. This allows packages to drop a script file in the .d directory to perform actions on DHCP events. We'll use this in a later change to notify petitboot of DHCP boot information. [Thomas: update to latest Buildroot, fix indentation.] Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
74 lines
1.7 KiB
Bash
Executable file
74 lines
1.7 KiB
Bash
Executable file
#!/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"
|
|
[ -e $RESOLV_CONF ] || touch $RESOLV_CONF
|
|
[ -n "$broadcast" ] && BROADCAST="broadcast $broadcast"
|
|
[ -n "$subnet" ] && NETMASK="netmask $subnet"
|
|
|
|
case "$1" in
|
|
deconfig)
|
|
/sbin/ifconfig $interface up
|
|
/sbin/ifconfig $interface 0.0.0.0
|
|
|
|
# drop info from this interface
|
|
# resolv.conf may be a symlink to /tmp/, so take care
|
|
TMPFILE=$(mktemp)
|
|
grep -vE "# $interface\$" $RESOLV_CONF > $TMPFILE
|
|
cat $TMPFILE > $RESOLV_CONF
|
|
rm -f $TMPFILE
|
|
|
|
if [ -x /usr/sbin/avahi-autoipd ]; then
|
|
/usr/sbin/avahi-autoipd -k $interface
|
|
fi
|
|
;;
|
|
|
|
leasefail|nak)
|
|
if [ -x /usr/sbin/avahi-autoipd ]; then
|
|
/usr/sbin/avahi-autoipd -wD $interface --no-chroot
|
|
fi
|
|
;;
|
|
|
|
renew|bound)
|
|
if [ -x /usr/sbin/avahi-autoipd ]; then
|
|
/usr/sbin/avahi-autoipd -k $interface
|
|
fi
|
|
/sbin/ifconfig $interface $ip $BROADCAST $NETMASK
|
|
|
|
if [ -n "$router" ] ; then
|
|
echo "deleting routers"
|
|
while route del default gw 0.0.0.0 dev $interface 2> /dev/null; do
|
|
:
|
|
done
|
|
|
|
for i in $router ; do
|
|
route add default gw $i dev $interface
|
|
done
|
|
fi
|
|
|
|
# drop info from this interface
|
|
# resolv.conf may be a symlink to /tmp/, so take care
|
|
TMPFILE=$(mktemp)
|
|
grep -vE "# $interface\$" $RESOLV_CONF > $TMPFILE
|
|
cat $TMPFILE > $RESOLV_CONF
|
|
rm -f $TMPFILE
|
|
|
|
[ -n "$domain" ] && echo "search $domain # $interface" >> $RESOLV_CONF
|
|
for i in $dns ; do
|
|
echo adding dns $i
|
|
echo "nameserver $i # $interface" >> $RESOLV_CONF
|
|
done
|
|
;;
|
|
esac
|
|
|
|
HOOK_DIR="$0.d"
|
|
for hook in "${HOOK_DIR}/"*; do
|
|
[ -f "${hook}" -a -x "${hook}" ] || continue
|
|
"${hook}" "${@}"
|
|
done
|
|
|
|
exit 0
|