#!/bin/sh -e
# init script for udev

# Check the package is still installed
[ -x /sbin/udevd ] || exit 0

# Get LSB functions
. /lib/lsb/init-functions
. /etc/default/rcS


case "$1" in
    start)
	# We need the uevent support introduced in 2.6.15, bail out if we
	# don't have it and fall back to a static /dev
	if [ ! -f /sys/class/mem/null/uevent ]; then
	    if mountpoint -q /dev; then
		# uh-oh, initramfs made some kind of /dev, get rid of it
		umount -l /dev/.static/dev
		umount -l /dev
	    fi
	    exit 1
	fi

	if ! mountpoint -q /dev; then
	    # initramfs didn't mount /dev, so we'll need to do that
	    mount -n --bind /dev /etc/udev
	    mount -n -t tmpfs -o mode=0755,noexec,nosuid udev /dev
	    mkdir -m 0700 -p /dev/.static/dev
	    mount -n --move /etc/udev /dev/.static/dev
	fi

	# Copy over default device tree
	cp -a -f /lib/udev/devices/* /dev

	# It's all over netlink now
	if [ -e /proc/sys/kernel/hotplug ]; then
	    echo "" > /proc/sys/kernel/hotplug
	fi
	
	# Start udevd
	log_begin_msg "Starting kernel event manager..."
	if start-stop-daemon --start --quiet --exec /sbin/udevd -- --daemon; then
	    log_end_msg 0
	else
	    log_end_msg $?
	fi

	# This next bit can take a while
	if type usplash_write >/dev/null 2>&1; then
	    usplash_write "TIMEOUT 360"
	    trap "usplash_write 'TIMEOUT 15'" 0
	fi

	# Log things that udevtrigger does (won't work on seb's machine)
	if [ -x /usr/sbin/udevmonitor ]; then
		/usr/sbin/udevmonitor -e >/dev/.udev.log &
		UDEV_MONITOR_PID=$!
	fi

	# Fix permissions and missing symlinks/programs for devices made in
	# initramfs, and catch up on everything we missed
	log_begin_msg "Loading hardware drivers..."
	/sbin/udevtrigger
	if /sbin/udevsettle; then
	    log_end_msg 0
	else
	    log_end_msg $?
	fi

	# Kill the udevmonitor again
	if [ -n "$UDEV_MONITOR_PID" ]; then
		kill $UDEV_MONITOR_PID
	fi
	;;
    stop)
	log_begin_msg "Stopping kernel event manager..."
	if start-stop-daemon --stop --quiet --oknodo --exec /sbin/udevd; then
	    log_end_msg 0
	else
	    log_end_msg $?
	fi
	umount -l /dev/.static/dev
	umount -l /dev
	;;
    restart)
	cp -au /lib/udev/devices/* /dev

	log_begin_msg "Loading additional hardware drivers..."
	/sbin/udevtrigger
	if /sbin/udevsettle; then
	    log_end_msg 0
	else
	    log_end_msg $?
	fi
	;;
    reload|force-reload)
	log_begin_msg "Reloading kernel event manager..."
	if start-stop-daemon --stop --signal 1 --exec /sbin/udevd; then
	    log_end_msg 0
	else
	    log_end_msg $?
	fi
	;;
*)
	echo "Usage: /etc/init.d/udev {start|stop|restart|reload|force-reload}"
	exit 1
	;;
esac

exit 0