#! /bin/sh
#----------------------------------------------------------------------------
#   add-default-route - add default route
#
#   called by imond
#
# Creation:     14.11.2000  fm
# Last Update:  $Id$
#----------------------------------------------------------------------------
device=$1

# $1 = family
# $2 = gateway suffix
add_gw()
{
    if [ -f /var/run/$device.$2 ]; then
        read gw < /var/run/$device.$2
        [ "$gw" ] && gw="via $gw"
    fi
    logger -t add-default-route "ip -$1 route add default dev $dev $gw"
    ip -$1 route add default dev $dev $gw
}

wait_for_device ()
{
    for i in `seq 1 20`
    do
        if ip link show $dev 2>/dev/null | grep -q "[<,]UP[,>]"
        then
            add_gw 4 gw
            grep -q type=ppp /var/run/ipv6.tunnels/*.conf 2>/dev/null && add_gw 6 gw6
            exit 0
        fi
        sleep 1
    done
    logger -t add-default-route "giving up after $i seconds"
}

logger -t add-default-route "adding route for $device"
dev=$device
if [ "$dev" = "pppoe" ]
then
    dev=`cat /var/run/pppoe-device`
    [ -n "$dev" ] || dev='ppp0'
fi

if ip link show $dev 2>/dev/null | grep -q "[<,]UP[,>]"
then
    wait_for_device
else
    wait_for_device &
fi