#!/sbin/runscript

# Copyright 1999-2010 Gentoo Foundation

# Distributed under the terms of the GNU General Public License v2

depend() {

	need localmount

}

XE_PROC=/proc/xen

XE_LINUX_DISTRIBUTION=/usr/sbin/xe-linux-distribution

XE_LINUX_DISTRIBUTION_CACHE=/var/cache/xe-linux-distribution

XE_DAEMON=/usr/sbin/xe-daemon

XE_DAEMON_PIDFILE=/var/run/xe-daemon.pid

checkxen() {

	if [ ! -d "$XE_PROC" ]; then

		eerror "Directory not found: $XE_PROC"

		eerror "You need a post 2.6.29-rc1 kernel with CONFIG_XEN_COMPAT_XENFS=y and CONFIG_XENFS=y|m"

		return 1

	fi

}

checklinuxdistribution() {

	if [ ! -x "${XE_LINUX_DISTRIBUTION}" ] ; then

		eerror "Program not found ${XE_LINUX_DISTRIBUTION}"

		eerror "You don't appear to have XenTools installed yet."

		return 1

	fi

	"${XE_LINUX_DISTRIBUTION}" "${XE_LINUX_DISTRIBUTION_CACHE}" \

		|| eerror "Linux distribution version not detected."

}

mountxen() {

	if [ ! -e "$XE_PROC"/xenbus ] ; then

		# This is needed post 2.6.29-rc1, /proc/xen support was pushed upstream as a xen filesystem

		einfo "Mounting xenfs on $XE_PROC"

		mount -t xenfs none "$XE_PROC" || return 1

	fi

}

start() {

	checkxen || return 1

	checklinuxdistribution || return 1

	mountxen || return 1

	ebegin "Starting xe daemon"

	start-stop-daemon --start --exec "${XE_DAEMON}" --background \

		--pidfile "${XE_DAEMON_PIDFILE}" --quiet \

		-- -p "${XE_DAEMON_PIDFILE}"

	eend $?

}

stop() {

	ebegin "Stopping xe daemon"

	start-stop-daemon --stop --exec "${XE_DAEMON}" \

		--pidfile "${XE_DAEMON_PIDFILE}" --quiet

	eend $?

}

identify_gentoo()

{

    gentoo_release="$1"

    if [ ! -e "${gentoo_release}" ] ; then

	return 1

    fi

    distro="gentoo"

    eval $(cat ${gentoo_release} | awk '{ print "release=" $5 }' )

    if [ -z "${release}" ] ; then

	return 1

    fi

    eval $(echo $release | awk -F. -- '{ print "major=" $1 ; print "minor=" $2 }' )

    if [ -z "${major}" -o -z "$minor" ] ; then

	return 1

    fi

    write_to_output "${distro}" "${major}" "${minor}" "${distro}"

}

    identify_gentoo /etc/gentoo-release && exit 0