38 lines
1,005 B
Bash
38 lines
1,005 B
Bash
|
#!/bin/bash
|
||
|
|
|
||
|
|
# Generate $INTERFACES_FILE on first boot
|
||
|
|
# This will add any unconfigured network interfaces to /etc/network/interfaces
|
||
|
|
# and configure them for DHCP
|
||
|
|
|
||
|
|
INTERFACES_FILE="/etc/network/interfaces"
|
||
|
|
|
||
|
|
function get_if_link() {
|
||
|
|
cat /sys/class/net/${1}/carrier
|
||
|
|
}
|
||
|
|
|
||
|
|
for interface in $(ls /sys/class/net | grep -v ^lo$) ; do
|
||
|
|
echo -n "Inspecting interface: $interface..."
|
||
|
|
HAS_CONFIG=$(ifquery $interface >/dev/null 2>&1)
|
||
|
|
if [ "$HAS_CONFIG" == "" ]; then
|
||
|
|
ip link set dev $interface up >/dev/null 2>&1
|
||
|
|
HAS_LINK="$(get_if_link $interface)"
|
||
|
|
|
||
|
|
TRIES=3
|
||
|
|
while [ "$HAS_LINK" == "0" -a $TRIES -gt 0 ]; do
|
||
|
|
HAS_LINK="$(get_if_link $interface)"
|
||
|
|
if [ "$HAS_LINK" == "1" ]; then
|
||
|
|
break
|
||
|
|
else
|
||
|
|
sleep 1
|
||
|
|
fi
|
||
|
|
TRIES=$(( TRIES - 1 ))
|
||
|
|
done
|
||
|
|
if [ "$HAS_LINK" == "1" ] ; then
|
||
|
|
printf "auto $interface\r\niface $interface inet dhcp\r\n\r\n" >>$INTERFACES_FILE]
|
||
|
|
echo "Configured"
|
||
|
|
else
|
||
|
|
echo "No link detected, skipping"
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
done
|