udev: Add udev rule to auto-load the sd_mod module on demand, closing OE bug #811

Add basic auto-mounting support with automatic creation and deletion of mount-points

1 files changed, 32 insertions, 0 deletions

diff --git a/packages/udev/files/mount.sh b/packages/udev/files/mount.sh
index 010b7289f2..48c7844690 100644
--- a/packages/udev/files/mount.sh
+++ b/packages/udev/files/mount.sh
@@ -8,6 +8,7 @@
 MOUNT="/bin/mount"
 PMOUNT="/usr/bin/pmount"
 UMOUNT="/bin/umount"
+name="`basename "$DEVNAME"`"
 
 for line in `cat /etc/udev/mount.blacklist | grep -v ^#`
 do
@@ -17,7 +18,29 @@ do
 		exit 0
 	fi
 done
+
+automount() {	
+	! test -d "/media/$name" && mkdir -p "/media/$name"
+	
+	if ! $MOUNT -t auto -o sync $DEVNAME "/media/$name"
+	then
+		#logger "mount.sh/automount" "$MOUNT -t auto $DEVNAME \"/media/$name\" failed!"
+		rm_dir "/media/$name"
+	else
+		logger "mount.sh/automount" "Auto-mount of [/media/$name] successful"
+		touch "/tmp/.automount-$name"
+	fi
+}
 	
+rm_dir() {
+	# We do not want to rm -r populated directories
+	if test "`find "$1" | wc -l | tr -d " "`" -lt 2 -a -d "$1"
+	then
+		! test -z "$1" && rm -r "$1"
+	else
+		logger "mount.sh/automount" "Not removing non-empty directory [$1]"
+	fi
+}
 
 if [ "$ACTION" = "add" ] && [ -n "$DEVNAME" ]; then
 	if [ -x "$PMOUNT" ]; then
@@ -25,11 +48,20 @@ if [ "$ACTION" = "add" ] && [ -n "$DEVNAME" ]; then
 	elif [ -x $MOUNT ]; then
     		$MOUNT $DEVNAME 2> /dev/null
 	fi
+	
+	# If the device isn't mounted at this point, it isn't configured in fstab
+	cat /proc/mounts | awk '{print $1}' | grep -q "^$DEVNAME$" || automount 
+	
 fi
 
+
+
 if [ "$ACTION" = "remove" ] && [ -x "$UMOUNT" ] && [ -n "$DEVNAME" ]; then
 	for mnt in `cat /proc/mounts | grep "$DEVNAME" | cut -f 2 -d " " `
 	do
 		$UMOUNT $mnt
 	done
+	
+	# Remove empty directories from auto-mounter
+	test -e "/tmp/.automount-$name" && rm_dir "/media/$name"
 fi