#!/bin/sh

. /lib/dracut-lib

getarg rdnetdebug && {
    exec >/tmp/netroot.$1.$$.out
    exec 2>>/tmp/netroot.$1.$$.out
    set -x
}

# Huh? Empty $1?
[ -z "$1" ] && exit 1

# Huh? No interface config?
[ ! -e /tmp/net.$1.up ] && exit 1

# Only try to configure from one network interface at a time
#
[ "$NETROOT_LOCKED" ] || {
    NETROOT_LOCKED=true
    export NETROOT_LOCKED
    exec flock -xo /tmp/netroot.lock -c "$0 $*"
    exit 1
}

# There's no sense in doing something if no (net)root info is available
# or root is already there
[ -e /tmp/root.info ] || exit 1
. /tmp/root.info
[ -d $NEWROOT/proc ] && exit 0
[ -z "$netroot" ] && exit 1

netif=$1

[ -e /tmp/dhclient.$netif.dhcpopts ] && . /tmp/dhclient.$netif.dhcpopts

# Now, let the installed network root handlers figure this out
#
source_all netroot

# If we didn't get a handler set, then we're done
#
if [ -z "$handler" ]; then
    # XXX informative error message?
    exit 0
fi

# Run the handler; don't store the root, it may change from device to device
# XXX other variables to export?
if $handler $netif $netroot $NEWROOT; then
    # Network rootfs mount successful
    [ -f /tmp/dhclient.$netif.lease ] &&    cp /tmp/dhclient.$netif.lease    /tmp/net.$netif.lease
    [ -f /tmp/dhclient.$netif.dhcpopts ] && cp /tmp/dhclient.$netif.dhcpopts /tmp/net.$netif.dhcpopts
    [ -f /tmp/dhclient.$netif.override ] && cp /tmp/dhclient.$netif.override /tmp/net.$netif.override

    # Save used netif for later use
    echo $netif > /tmp/net.bootdev
fi
exit 0