chiark / gitweb /
path_id: remove broken example
[elogind.git] / extras / path_id / path_id
index 7f0d53a1808181e48dff13891769d383d33c89b3..a7d650bf423b62b46cfd188d3b31c9814d370c53 100644 (file)
 #      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
@@ -96,6 +89,56 @@ handle_pci () {
        RESULT=0
 }
 
+handle_platform () {
+       local DEV=$1
+       cd -P $1
+       DEV=${PWD}
+       platform_id=${DEV##*/}
+       host_dev_path=$DEV
+       while [ ! -z "$host_dev_path" ] ; do
+               case "$host_dev_path" in
+                       */platform*)
+                               host_dev_path=${host_dev_path%/*}
+                               ;;
+                       *)
+                               break
+                               ;;
+               esac
+       done
+       if [ "$d" ]; then
+               d="platform-$platform_id-$d"
+       else
+               d="platform-$platform_id"
+       fi
+       D="$host_dev_path"
+       RESULT=0
+}
+
+handle_serio () {
+       local DEV=$1
+       cd -P $1
+       DEV=${PWD}
+       serio_id=${DEV##*/serio}
+       host_dev_path=$DEV
+       while [ ! -z "$host_dev_path" ] ; do
+               case "$host_dev_path" in
+                       */serio*)
+                               host_dev_path=${host_dev_path%/*}
+                               ;;
+                       *)
+                               break
+                               ;;
+               esac
+       done
+       if [ "$d" ]; then
+               d="serio-$serio_id-$d"
+       else
+               d="serio-$serio_id"
+       fi
+       D="$host_dev_path"
+       RESULT=0
+}
+
 handle_ide () {
        : handle_ide $*
        local DEV=$1
@@ -170,7 +213,7 @@ handle_scsi () {
 }
 
 handle_firewire () {
-       :handle_firewire $*
+       : handle_firewire $*
        local DEV=$1
        if [ -f "$D/ieee1394_id" ] ; then
                read ieee1394_id < $D/ieee1394_id
@@ -202,6 +245,7 @@ handle_fc () {
        fi
        if [ -z "$wwpn" ] ; then
                : no WWPN
+               D=
                RESULT=1
                return
        fi
@@ -227,41 +271,112 @@ handle_sas () {
        local DEV=$1
        local cil adapter controller_dev
        # SAS device
-       sas_host_path="${DEV%%/phy*}"
+       sas_host_path="${DEV%%/port*}"
        sas_phy_path="${DEV#*/host*/}"
        sas_phy_path="${sas_phy_path%%/target*}"
        sas_phy_id="${sas_phy_path%%/*}"
-       sas_rphy_id="${sas_phy_path##*/}"
-       sas_phy_dev="/sys/class/sas_phy/${sas_phy_id}"
+       sas_phy_id="${sas_phy_id##*port-}"
+       sas_port_id="${sas_phy_path%%/end_device*}"
+       sas_port_id="${sas_port_id##*port-}"
+       sas_end_id="${sas_phy_path##*end_device-}"
+       sas_phy_dev="/sys/class/sas_phy/phy-${sas_phy_id}"
        if [ -e "$sas_phy_dev/sas_address" ]; then
                read phy_address < $sas_phy_dev/sas_address
-               read phy_port < $sas_phy_dev/port_identifier
                read phy_id < $sas_phy_dev/phy_identifier
        fi
        if [ -z "$phy_address" ] ; then
                : no initiator address
+               D=
+               RESULT=1
+               return
+       fi
+       sas_port_dev="/sys/class/sas_port/port-${sas_port_id}"
+       if [ -e "$sas_port_dev/num_phys" ] ; then
+               read phy_port < $sas_port_dev/num_phys
+       fi
+       if [ -z "$phy_port" ] ; then
+               : no initiator address
+               D=
                RESULT=1
                return
        fi
        sas_phy_address="$phy_address:$phy_port:$phy_id"
-       sas_rphy_dev="/sys/class/sas_device/${sas_rphy_id}"
-       if [ -e "$sas_rphy_dev/sas_address" ]; then
-               read rphy_address < $sas_rphy_dev/sas_address
-               read rphy_id < $sas_rphy_dev/phy_identifier
+       sas_end_dev="/sys/class/sas_device/end_device-${sas_end_id}"
+       if [ -e "$sas_end_dev/sas_address" ]; then
+               read end_address < $sas_end_dev/sas_address
+               read end_id < $sas_end_dev/phy_identifier
        fi
-       if [ -z "$rphy_address" ] ; then
+       if [ -z "$end_address" ] ; then
                : no initiator address
+               D=
                RESULT=1
                return
        fi
-       sas_rphy_address="$rphy_address:$rphy_id"
+       sas_end_address="$end_address:$end_id"
        controller_dev="${sas_host_path%/host[0-9]*}"
        # SAS devices are always endpoints
-       d="sas-${sas_phy_address}-${sas_rphy_address}"
+       d="sas-${sas_phy_address}-${sas_end_address}"
        D="$controller_dev"
        RESULT=0
 }
 
+handle_iscsi() {
+       local DEV=$1
+       local iscsi_session_dir
+       local iscsi_session iscsi_session_path
+       local iscsi_connection iscsi_connection_path
+       local iscsi_scsi_lun
+       # iSCSI device
+       iscsi_session_dir="${DEV%%/target*}"
+       iscsi_session="${iscsi_session_dir##*/}"
+       iscsi_session_path=/sys/class/iscsi_session/${iscsi_session}
+       if [ ! -d "$iscsi_session_path" ] ; then
+           : no iSCSI session path
+           RESULT=1
+           return
+       fi
+       # Currently we're not doing MC/S
+       for conn in ${iscsi_session_dir}/connection* ; do
+           iscsi_conn_num=${conn##*:}
+           if [ "$iscsi_conn_num" = '0' ] ; then
+               iscsi_connection=$(basename $conn)
+           fi
+       done
+       if [ -z "$iscsi_connection" ] ; then
+           : no iSCSI connection found
+           RESULT=1
+           return
+       fi
+       iscsi_connection_path=/sys/class/iscsi_connection/${iscsi_connection}
+       if [ ! -d "$iscsi_connection_path" ] ; then
+           : no iSCSI connection path
+           RESULT=1
+           return
+       fi
+       if [ -e "${iscsi_session_path}/targetname" ]; then
+           read iscsi_tgtname < ${iscsi_session_path}/targetname
+       fi
+       if [ -z "$iscsi_tgtname" ] ; then
+           : No iSCSI Targetname
+           RESULT=1
+           return
+       fi
+       if [ -e "${iscsi_connection_path}/persistent_address" ] ; then
+           read iscsi_address < ${iscsi_connection_path}/persistent_address
+       fi
+       if [ -z "$iscsi_address" ] ; then
+           : No iSCSI Target address
+           RESULT=1
+           return
+       fi
+       if [ -e "${iscsi_connection_path}/persistent_port" ] ; then
+           read iscsi_port < ${iscsi_connection_path}/persistent_port
+       fi
+       iscsi_scsi_lun="${DEV##*:}"
+       d="ip-${iscsi_address}:${iscsi_port}-iscsi-${iscsi_tgtname}-lun-${iscsi_scsi_lun}"
+       RESULT=0
+}
+
 handle_usb () {
 : handle_usb $*
        local DEV=$1
@@ -299,30 +414,35 @@ handle_usb () {
 
 handle_device () {
        full_sysfs_path="$SYSFS$DEVPATH"
-       if [ -L $full_sysfs_path/subsystem ]; then
-               # new sysfs block layout
-               full_sysfs_path="${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%/*}"
-               fi
-               cd $full_sysfs_path
-       else
-               # old sysfs block layout
-               if [ ! -L $full_sysfs_path/device ] ; then
-                       if [ -f $full_sysfs_path/range ] ; then return ; fi
-                       full_sysfs_path="${full_sysfs_path%/*}"
-                       : full_sysfs_path "$full_sysfs_path"
-                       if [ ! -L $full_sysfs_path/device -o ! -f $full_sysfs_path/dev ] ; then
-                               return
+       case "$DEVPATH" in
+               /devices/*)
+                       # new sysfs layout
+                       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%/*}"
+                               fi
+                               cd $full_sysfs_path
                        fi
-               fi
-               cd $full_sysfs_path/device
-       fi
+                       ;;
+               *)
+                       # old sysfs layout
+                       if [ ! -L $full_sysfs_path/device ] ; then
+                               if [ -f $full_sysfs_path/range ] ; then return ; fi
+                               full_sysfs_path="${full_sysfs_path%/*}"
+                               : full_sysfs_path "$full_sysfs_path"
+                               if [ ! -L $full_sysfs_path/device -o ! -f $full_sysfs_path/dev ] ; then
+                                       return
+                               fi
+                       fi
+                       cd $full_sysfs_path/device
+                       ;;
+       esac
        full_sysfs_device_path="`pwd -P`"
        cd "$OPWD"
        D=$full_sysfs_device_path
@@ -357,12 +477,16 @@ handle_device () {
                        */rport-[0-9]*:[0-9]*-[0-9]*/*)
                                handle_fc "$D"
                                ;;
-                       */phy-[0-9]*:[0-9]*/*)
+                       */end_device-[0-9]*:[0-9]*:[0-9]*/*)
                                handle_sas "$D"
                                ;;
                        */fw-host[0-9]*/*)
                                handle_firewire "$D"
                                ;;
+                       */session[0-9]*/*)
+                               handle_iscsi "$D"
+                               D=
+                               ;;
                        */host[0-9]*/[0-9]*:[0-9]*:[0-9]*:[0-9]*)
                                handle_scsi "$D"
                                ;;
@@ -372,6 +496,12 @@ handle_device () {
                        */pci[0-9]*:[0-9]*)
                                handle_pci "$D"
                                ;;
+                       */serio[0-9]*)
+                               handle_serio "$D"
+                               ;;
+                       */platform/*)
+                               handle_platform "$D"
+                               ;;
                        */devices)
                                D=
                                ;;
@@ -382,7 +512,7 @@ handle_device () {
                                ;;
                esac
        done
-       if [ "$TYPE" == "scsi_tape" ] ; then
+       if [ "$TYPE" = "scsi_tape" ] ; then
                devname=${full_sysfs_path##*/}
                rewind="${devname%%st*}"
                mode="${devname##*st}"