X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=extras%2Fpath_id%2Fpath_id;h=0fad30cfb257d3468ce047efaf1776994be04f3c;hp=8927d84ffb729215be1c3a56836b941518d6324c;hb=31c1f537450e96f8ddd6a0fad2adaefe57996f03;hpb=5ab2e3c2c3efe9b25861ddf560b3760b9384090d

diff --git a/extras/path_id/path_id b/extras/path_id/path_id
old mode 100644
new mode 100755
index 8927d84ff..0fad30cfb
--- a/extras/path_id/path_id
+++ b/extras/path_id/path_id
@@ -10,13 +10,6 @@
 #	This program is free software; you can redistribute it and/or modify it
 #	under the terms of the GNU General Public License as published by the
 #	Free Software Foundation version 2 of the License.
-#
-# to be called from a udev rule to return the name for a symlink
-#	DEVPATH=<devpath>; path_id
-#	path_id <devpath>
-
-# examples for all block devices on a system:
-#	for i in `find /sys/class/block`; do DEVPATH="`echo $i | sed -e 's@^/sys\|/dev@@g'`"; path_id; done
 
 SYSFS=/sys
 RESULT=1
@@ -81,6 +74,17 @@ handle_pci () {
 	DEV=${PWD}
 	pci_id=${DEV##*/}
 	host_dev_path=$DEV
+
+	# cciss devices don't have a separate sysfs node
+	for blk_link in block*; do
+	    if [ -L "$blk_link" ]; then
+		case "$blk_link" in
+		    *cciss*)
+			d=cciss-${blk_link#*cciss\!}
+			;;
+		esac
+	    fi
+	done
 	while [ ! -z "$host_dev_path" ] ; do
 		case "$host_dev_path" in
 			*/pci[0-9]*)
@@ -91,7 +95,11 @@ handle_pci () {
 				;;
 		esac
 	done
-	d="pci-$pci_id-$d"
+	if [ "$d" ]; then
+		d="pci-$pci_id-$d"
+	else
+		d="pci-$pci_id"
+	fi
 	D="$host_dev_path"
 	RESULT=0
 }
@@ -423,35 +431,45 @@ handle_device () {
 	full_sysfs_path="$SYSFS$DEVPATH"
 	case "$DEVPATH" in
 		/devices/*)
-			# new sysfs layout
+			full_sysfs_path="${full_sysfs_path%/*}"
+			# skip parent device of the same subsystem
 			if [ -L $full_sysfs_path/subsystem ]; then
-				full_sysfs_path="${full_sysfs_path%/*}"
 				cd "$full_sysfs_path/subsystem";
 				subsys="`pwd -P`"
 				cd "$OPWD"
 				subsys="${subsys##*/}"
-				if [ "$subsys" = "block" ]; then
-					# parent is "block", it's a partition, move one up
-				full_sysfs_path="${full_sysfs_path%/*}"
+				if [ "$subsys" = "$TYPE" ]; then
+					: skip same subsystem parent
+					full_sysfs_path="${full_sysfs_path%/*}"
 				fi
-				cd $full_sysfs_path
 			fi
+			# skip subsystem directory
+			subsys="${full_sysfs_path##*/}"
+			if [ "$subsys" = "$TYPE" ]; then
+				: skip subsystem directory
+				full_sysfs_path="${full_sysfs_path%/*}"
+			fi
+			cd $full_sysfs_path
 			;;
 		*)
 			# old sysfs layout
-			if [ ! -L $full_sysfs_path/device ] ; then
-				if [ -f $full_sysfs_path/range ] ; then return ; fi
+			if [ ! -L $full_sysfs_path/device ]; then
 				full_sysfs_path="${full_sysfs_path%/*}"
 				: full_sysfs_path "$full_sysfs_path"
-				if [ ! -L $full_sysfs_path/device -o ! -f $full_sysfs_path/dev ] ; then
+				if [ ! -L $full_sysfs_path/device -o ! -f $full_sysfs_path/dev ]; then
 					return
 				fi
 			fi
-			cd $full_sysfs_path/device
+			if [ -L $full_sysfs_path/device/device ]; then
+				cd $full_sysfs_path/device/device
+			else
+				cd $full_sysfs_path/device
+			fi
 			;;
 	esac
 	full_sysfs_device_path="`pwd -P`"
 	cd "$OPWD"
+
 	D=$full_sysfs_device_path
 	while [ ! -z "$D" ] ; do
 		case "$D" in
@@ -535,7 +553,7 @@ handle_device () {
 				;;
 			*)
 				mode=""
-			   ;;
+				;;
 		esac
 		if [ "$d" ]; then
 			d="$d-${rewind}st${mode}"
@@ -543,22 +561,9 @@ handle_device () {
 	fi
 }
 
-case "$TYPE" in
-	block)
-		handle_device
-		echo "ID_PATH=$d"
-		;;
-	scsi_tape)
-		handle_device
-		echo "ID_PATH=$d"
-		;;
-	input)
-		handle_device
-		echo "ID_PATH=$d"
-		;;
-	*)
-		RESULT=1
-		;;
-esac
-
-exit $RESULT
+handle_device
+if [ -z "$d" ]; then
+	exit 1
+fi
+echo "ID_PATH=$d"
+exit 0