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|
#!/bin/sh
PROGRAM=setup-interfaces
PREFIX=
. $PREFIX/lib/libalpine.sh
detect_interfaces() {
ip addr | grep -v ' lo:' | awk -F : '/^[0-9]*:/ { print $2}'
}
get_first_unconfigured() {
ls *.noconf 2>/dev/null | head -n 1 | sed 's/.noconf//'
}
get_default_addr() {
# check if dhcpcd is running
if pidof dhcpcd > /dev/null && [ -f "$ROOT/var/lib/dhcpc/dhcpcd-$1.info" ]; then
echo dhcp
else
ip addr show $1 | awk '/inet / {print $2}' | head -n 1 | sed 's:/.*::'
fi
}
get_default_mask() {
if [ "$1" ] ; then
ipcalc -m $1 | sed 's/.*=//'
else
echo "255.255.255.0"
fi
}
get_default_gateway() {
ip route show dev $1 | awk '/^default/ {print $3}'
}
config_iface() {
local iface=$1
local address
local netmask
local gateway
while invalid_ip $address ; do
address=`get_default_addr $iface`
echon "Ip address for $iface? (or 'dhcp') [$address] "
default_read address $address
[ "$address" = "abort" ] && return
if [ "$address" = "dhcp" ] ; then
HAS_DHCP=yes
echo "type=dhcp" > $iface.conf
rm $iface.noconf
return
fi
done
while invalid_ip $netmask ; do
netmask=`get_default_mask $address`
echon "Netmask? [$netmask] "
default_read netmask "$netmask"
[ "$netmask" = "abort" ] && return
done
while invalid_ip $gateway ; do
gateway=`get_default_gateway $iface`
[ -z "$gateway" ] && gateway=none
echon "Gateway? (or 'none') [$gateway] "
default_read gateway $gateway
[ "$gateway" = "abort" ] && return
[ "$gateway" = "none" ] && gateway=""
[ -z "$gateway" ] && break
done
echo "type=static" > $iface.conf
echo "address=$address" >> $iface.conf
echo "netmask=$netmask" >> $iface.conf
echo "gateway=$gateway" >> $iface.conf
rm $iface.noconf
}
init_tmpdir TMP
cd $TMP
for i in $(detect_interfaces); do
touch $i.noconf
done
while ls *.noconf > /dev/null 2>&1 ; do
echon "Available interfaces are:"
for i in *.noconf; do
echon " `basename $i .noconf`"
done
echo "."
firstif=`get_first_unconfigured`
echon "Which one do you want to initialize? (or 'done') [$firstif] "
default_read iface "$firstif"
[ "$iface" = "done" ] && break
[ -f $iface.noconf ] || continue
config_iface $iface
done
echo "type=loopback" > lo.conf
echo "" > interface
for i in *.conf ; do
iface=`basename $i .conf`
. ./$i
echo "" >> interfaces
echo "auto $iface" >> interfaces
echo "iface $iface inet $type" >> interfaces
[ "$type" = "static" ] || continue
echo " address $address" >> interfaces
echo " netmask $netmask" >> interfaces
[ "$gateway" ] && echo " gateway $gateway" >> interfaces
done
while [ "$answer" != "yes" ] && [ "$answer" != "no" ] ; do
echon "Do you want to do any manual network configuration? [no] "
default_read answer no
done
if [ "$answer" = "yes" ]; then
[ -z "$EDITOR" ] && EDITOR=nano
case $EDITOR in
nano) pkg_inst nano;;
vim) pkg_inst vim;;
esac
$EDITOR interfaces
fi
mkdir -p $ROOT/etc/network
cp interfaces $ROOT/etc/network/
|
