#!/bin/sh -e
### BEGIN INIT INFO
# Provides:          networking
# Required-Start:    mountvirtfs $local_fs
# Required-Stop:     $local_fs
# Should-Start:      ifupdown
# Should-Stop:       ifupdown
# Default-Start:     S
# Default-Stop:      0 6
# Short-Description: Raise network interfaces.
### END INIT INFO

PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin"
CONF="/etc/sololink.conf"

[ -x /sbin/ifup ] || exit 0

check_network_file_systems() {
    [ -e /proc/mounts ] || return 0

    if [ -e /etc/iscsi/iscsi.initramfs ]; then
	echo "not deconfiguring network interfaces: iSCSI root is mounted."
	exit 0
    fi

    exec 9<&0 < /proc/mounts
    while read DEV MTPT FSTYPE REST; do
	case $DEV in
	/dev/nbd*|/dev/nd[a-z]*|/dev/etherd/e*)
	    echo "not deconfiguring network interfaces: network devices still mounted."
	    exit 0
	    ;;
	esac
	case $FSTYPE in
	nfs|nfs4|smbfs|ncp|ncpfs|cifs|coda|ocfs2|gfs|pvfs|pvfs2|fuse.httpfs|fuse.curlftpfs)
	    echo "not deconfiguring network interfaces: network file systems still mounted."
	    exit 0
	    ;;
	esac
    done
    exec 0<&9 9<&-
}

check_network_swap() {
    [ -e /proc/swaps ] || return 0

    exec 9<&0 < /proc/swaps
    while read DEV MTPT FSTYPE REST; do
	case $DEV in
	/dev/nbd*|/dev/nd[a-z]*|/dev/etherd/e*)
	    echo "not deconfiguring network interfaces: network swap still mounted."
	    exit 0
	    ;;
	esac
    done
    exec 0<&9 9<&-
}

isEnabled() {
    grep -i -q "[[:space:]]*$2[[:space:]]*=[[:space:]]*True" $1
}

case "$1" in
start)
	echo -n "Configuring network interfaces... "
	sysctl -e -p /etc/sysctl.conf >/dev/null 2>&1
	# Since we might modprobe -r ath9k in a networking shutdown,
	# be sure to re-modprobe it at a startup
	modprobe ath9k
	ifup -a
	if [ -e /sys/class/net/wlan0 ]; then
		# if the config file exists and StationEnable is True, bring up wlan0
		if [ -f $CONF ] && isEnabled $CONF StationEnable; then
			ifup wlan0
		fi
	else
		# this should exist on both solo and controller
		echo -n "(wlan0 does not exist!) "
	fi
	if [ -e /sys/class/net/wlan0-ap ]; then
		# if the config file does not exist, or if it does and ApEnable is
		# True, bring up wlan0-ap
		if [ ! -f $CONF ] || isEnabled $CONF ApEnable; then
			ifup wlan0-ap
		fi
	fi
	echo "done."
	;;

stop)
	check_network_file_systems
	check_network_swap

	echo -n "Deconfiguring network interfaces... "
	ifdown wlan0 &> /dev/null
	ifdown wlan0-ap &> /dev/null
	ifdown -a
	echo "done."
	;;

force-reload|restart)
	echo "Running $0 $1 is deprecated because it may not enable again some interfaces"
	echo "Reconfiguring network interfaces... "
	# this will restart only the "auto" interfaces (not wlan0 or wlan0-ap)
	ifdown -a || true
	ifup -a
	echo "done."
	;;

*)
	echo "Usage: /etc/init.d/networking {start|stop}"
	exit 1
	;;
esac

exit 0