X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=etc%2Finit.d%2Fudev;h=8726090d44f5374d12ba40c9e0f3b4fe2e43406f;hb=2b41e68a08548ce44b4d145900dab2bb04cd34f7;hp=c540057d21ae82b925ed0d56286bc8f354150304;hpb=5779dd31f49b41d52d1f08c2eb4239926fa58864;p=elogind.git

diff --git a/etc/init.d/udev b/etc/init.d/udev
index c540057d2..8726090d4 100644
--- a/etc/init.d/udev
+++ b/etc/init.d/udev
@@ -1,30 +1,22 @@
-#! /bin/bash
+#! /bin/sh
 #
-# random	init script to setup /udev
+# udev	init script to setup /udev
 #
 # chkconfig: 2345 20 80
 # description: manage user-space device nodes in /udev
 
 . /etc/rc.d/init.d/functions
 
-udev_dir=/udev
+. /etc/udev/udev.conf
+
+prog=udev
 sysfs_dir=/sys
 bin=/sbin/udev
+udevd=/sbin/udevd
+udev_root=/udev
 
-case "$1" in
-  start)
-	if [ ! -d $udev_dir ]; then
-		mkdir $udev_dir
-	fi
-	if [ ! -d $sysfs_dir ]; then
-		exit 1
-	fi
-	# propogate /udev from /sys - we only need this while we do not
-	# have initramfs and an early user-space with which to do early
-	# device bring up
-	action "Creating initial udev device nodes: " /bin/true
-	export ACTION=add
-	# add block devices and their partitions
+run_udev () {
+	# handle block devices and their partitions
 	for i in ${sysfs_dir}/block/*; do
 		# add each drive
 		export DEVPATH=${i#${sysfs_dir}}
@@ -49,21 +41,81 @@ case "$1" in
 			fi
 		done
 	done
+	return 0
+}
+
+make_extra_nodes () {
+	# there are a few things that sysfs does not export for us.
+	# these things go here (and remember to remove them in 
+	# remove_extra_nodes()
+	#
+	# Thanks to Gentoo for the initial list of these.
+	ln -snf /proc/self/fd $udev_root/fd
+	ln -snf /proc/self/fd/0 $udev_root/stdin
+	ln -snf /proc/self/fd/1 $udev_root/stdout
+	ln -snf /proc/self/fd/2 $udev_root/stderr
+	ln -snf /proc/kcore $udev_root/core
+	#ln -snf /proc/asound/oss/sndstat $udev_root/sndstat
+}
+
+remove_extra_nodes () {
+	# get rid of the extra nodes created in make_extra_nodes()
+	rm $udev_root/fd
+	rm $udev_root/stdin
+	rm $udev_root/stdout
+	rm $udev_root/stderr
+	rm $udev_root/core
+	#rm $udev_root/sndstat
+}
+
+case "$1" in
+  start)
+	# don't use udev if sysfs is not mounted.
+	if [ ! -d $sysfs_dir/block ]; then
+		exit 1
+	fi
+	if [ ! -d $udev_root ]; then
+		mkdir $udev_root
+	fi
+
+	# remove the database if it is there as we always want to start fresh
+	if [ -f $udev_root/.udevdb ]; then
+		rm -rf $udev_root/.udevdb
+	fi
+
+	# propogate /udev from /sys - we only need this while we do not
+	# have initramfs and an early user-space with which to do early
+	# device bring up
+	export ACTION=add
+	echo -n $"Creating initial udev device nodes:"
+	run_udev
+	make_extra_nodes
+
+	# We want to start udevd ourselves if it isn't already running.  This
+	# lets udevd run at a sane nice level...
+	$udevd &
+
+	success /bin/true
+	echo
+	touch /var/lock/subsys/udev
 	;;
   stop)
   	# be careful
-	action "Removing udev device nodes: " /bin/true
-	if [ $udev_dir -a "$udev_dir" != "/" ]; then
-	  	# clear out /udev
-  		rm -rf ${udev_dir}/*
-	fi
+	echo -n $"Removing udev device nodes: "
+	export ACTION=remove
+	run_udev 
+	remove_extra_nodes
+	success /bin/true
+	echo
+	rm -f /var/lock/subsys/udev
 	;;
   status)
-  	if [ -d $udev_dir ]; then
-		echo "the udev device node directory exists"
-	else
-		echo "the udev device node directory does not exist"
+	if [ -f /var/lock/subsys/udev ]; then
+		echo $"$prog has run"
+		exit 0
 	fi
+	echo $"$prog is stopped"
+	exit 3
 	;;
   restart)
 	$0 stop