diff options
Diffstat (limited to 'extras/path_id')
| -rwxr-xr-x[-rw-r--r--] | extras/path_id | 533 |
1 files changed, 239 insertions, 294 deletions
diff --git a/extras/path_id b/extras/path_id index aecc40cc9b..0274be391a 100644..100755 --- a/extras/path_id +++ b/extras/path_id @@ -1,9 +1,9 @@ #!/bin/sh -# provide the shortest possible unique hardware path to a block device -# for the udev persistent disk device naming scheme +# provide the shortest possible unique hardware path to a device +# for the Linux Persistent Device Naming scheme # -# Copyright (C) 2005 SUSE Linux Products GmbH +# Copyright (C) 2005-2006 SUSE Linux Products GmbH # Author: # Hannes Reinecke <hare@suse.de> # @@ -12,53 +12,12 @@ # Free Software Foundation version 2 of the License. # # to be called from a udev rule to return the name for a symlink -# DEVPATH=/block/sda/sda3 path_id +# 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 $i | sed -e 's@^/sys\|/dev@@g'`"; path_id; done -# SCSI cdrom -# /class/block/sr0 -> /devices/pci0002:30/0002:30:0c.0/host0/target0:0:0/0:0:1:0 -# pci-0002:30:0c.0-scsi-0:0:1:0 -# -# SCSI disk -# /class/block/sda -> /devices/pci0002:30/0002:30:0c.0/host0/target0:0:0/0:0:4:0 -# pci-0002:30:0c.0-scsi-0:0:4:0 -# -# SATA disk, 4 channels per controller -# /class/block/sda -> /devices/pci0001:00/0001:00:07.0/0001:05:0c.0/host0/target0:0:0/0:0:0:0 -# pci-0001:05:0c.0-scsi-0:0:0:0 -# -# IDE disk -# /class/block/hda -> /devices/pci0002:02/0002:02:0d.0/ide0/0.0 -# pci-0002:02:0d.0-ide-0.0 -# -# IDE cdrom on a Mac ASIC: -# /class/block/hdc -> /devices/pci0001:01/0001:01:17.0/0.80000000:mac-io/0.00020000:ata-3/ide1/1.0 -# mac-io_ata-3_master -# -# IDE cdrom on a Mac ASIC, with ide-scsi: -# /class/block/sr0 -> /devices/pci0001:01/0001:01:17.0/0.80000000:mac-io/0.0001f000:ata-4/ide0/0.1/host2/target2:0:0/2:0:0:0 -# mac-io_ata-4_slave - -# USB CDrom drive without 'serial' number: -# reusing 'product' and 'manufacturer' string, if available -# /class/block/sr0 -> /devices/pci0001:00/0001:00:04.0/0001:02:0b.0/usb4/4-2/4-2:1.0/host4/4:0:0:0 -# usb-storage-odd-Freecom-USIDERev930:0:0:0 - -# devices may have several interfaces on one PCI device, like IDE: -# pci-0001:00:04.0_ide1-master -# pci-0001:00:04.0_ide2-master -# pci-0001:00:04.0_ide2-slave -# they are marked as ports, it is expected that the driver shows -# ide1 even if there is nothing connected to either master or slave -# interface -# -# match order is important. -# first IDE to find ide-scsi devices, then SCSI -# first usb-storage, then firewire sbp2, then the rest - SYSFS=/sys RESULT=1 TYPE= @@ -67,83 +26,82 @@ full_sysfs_path= full_sysfs_device_path= if [ -z "$DEVPATH" -a -z "$1" ] ; then - exit 1 + exit 1 fi if [ -z "$DEVPATH" ] ; then - case "$1" in - $SYSFS/*) - DEVPATH="${1#$SYSFS}" - ;; - *) - DEVPATH=$1 - ;; - esac + case "$1" in + $SYSFS/*) + DEVPATH="${1#$SYSFS}" + ;; + *) + DEVPATH=$1 + ;; + esac fi if [ ! -e $SYSFS$DEVPATH/dev ] ; then - exit 1 + exit 1 fi case "$DEVPATH" in - /devices/*) - cd "$SYSFS$DEVPATH/subsystem"; - TYPE="`pwd -P`" - cd "$OPWD" - TYPE="${TYPE##*/}" - ;; - /class/*) - TYPE="${DEVPATH#/class/}" - TYPE="${TYPE%%/*}" - ;; - /block/*) - TYPE=block - ;; - *) - exit 1 - ;; + /devices/*) + cd "$SYSFS$DEVPATH/subsystem"; + TYPE="`pwd -P`" + cd "$OPWD" + TYPE="${TYPE##*/}" + ;; + /class/*) + TYPE="${DEVPATH#/class/}" + TYPE="${TYPE%%/*}" + ;; + /block/*) + TYPE=block + ;; + *) + exit 1 + ;; esac get_port_offset () { - local type offset port - type=$1 - offset=$2 - for i in $type[0-9]* ; do - : i $i - port="${i#$type}" - if [ "$port" -lt "$offset" ] ; then offset=$port ; fi - done - echo $offset + local type offset port + type=$1 + offset=$2 + for i in $type[0-9]* ; do + : i $i + port="${i#$type}" + if [ "$port" -lt "$offset" ] ; then offset=$port ; fi + done + echo $offset } handle_pci () { - local DEV=$1 - cd -P $1 - DEV=${PWD} - pci_id=${DEV##*/} - - host_dev_path=$DEV - while [ ! -z "$host_dev_path" ] ; do - case "$host_dev_path" in - */pci[0-9]*) - host_dev_path=${host_dev_path%/*} - ;; - *) break;; - esac - done - - d="pci-$pci_id-$d" - D="$host_dev_path" - RESULT=0 + local DEV=$1 + cd -P $1 + DEV=${PWD} + pci_id=${DEV##*/} + host_dev_path=$DEV + while [ ! -z "$host_dev_path" ] ; do + case "$host_dev_path" in + */pci[0-9]*) + host_dev_path=${host_dev_path%/*} + ;; + *) + break + ;; + esac + done + d="pci-$pci_id-$d" + D="$host_dev_path" + RESULT=0 } -handle_block_ide () { -: handle_block_ide $* +handle_ide () { + : handle_ide $* local DEV=$1 local port idedev idecontroller # IDE : DEV $DEV - port=${DEV##*/} idedev=${DEV%/*} idecontroller=${idedev%/*} @@ -152,32 +110,32 @@ handle_block_ide () { : port $port d $d : idedev $idedev kernel_port $port case "${port#*.}" in - 0) - channel=0 - ;; - 1) - channel=1 - ;; - *) - echo "Error: $idedev is neither master or slave" >&2 + 0) + channel=0 + ;; + 1) + channel=1 + ;; + *) + echo "Error: $idedev is neither master or slave" >&2 + ;; esac - cd $idecontroller offset="`get_port_offset ide ${port%.*}`" cd "$OPWD" : port offset $offset port=$((${port%.*} - $offset)) if [ "$d" ] ; then - d="ide-${port}:$channel-$d" + d="ide-${port}:$channel-$d" else - d="ide-${port}:$channel" + d="ide-${port}:$channel" fi D=$idecontroller RESULT=0 } -handle_block_scsi () { - : handle_block_scsi $* +handle_scsi () { + : handle_scsi $* local DEV=$1 local cil controller_port controller_dev # SCSI device @@ -188,12 +146,10 @@ handle_block_scsi () { cd "$target_dev" target_num=0 for tid in ${target_id}* ; do - target_num=$(( $target_num + 1 )) + target_num=$(( $target_num + 1 )) done - controller_port=${target_dev%/*} controller_dev="${controller_port%/*}" - : controller_dev $controller_dev : controller_port $controller_port # a host controller may have more than one interface/port @@ -204,41 +160,35 @@ handle_block_scsi () { cd "$OPWD" controller_port=$(( $controller_port - $controller_offset)) scsi_id="scsi-${controller_port}:${cil}" - if [ "$d" ] ; then - d="${scsi_id}-$d" + d="${scsi_id}-$d" else - d="$scsi_id" + d="$scsi_id" fi - D="$controller_dev" RESULT=0 } -handle_block_firewire () { - :handle_block_firewire $* - local DEV=$1 - - if [ -f "$D/ieee1394_id" ] ; then - read ieee1394_id < $D/ieee1394_id - fi - - if [ -z "$ieee1394_id" ] ; then - : no IEEE1394 ID - RESULT=1 - return - fi - - fw_host_dev=${DEV%/fw-host*} - # IEEE1394 devices are always endpoints - d="ieee1394-0x$ieee1394_id" - D="$fw_host_dev" - - RESULT=0 +handle_firewire () { + :handle_firewire $* + local DEV=$1 + if [ -f "$D/ieee1394_id" ] ; then + read ieee1394_id < $D/ieee1394_id + fi + if [ -z "$ieee1394_id" ] ; then + : no IEEE1394 ID + RESULT=1 + return + fi + fw_host_dev=${DEV%/fw-host*} + # IEEE1394 devices are always endpoints + d="ieee1394-0x$ieee1394_id" + D="$fw_host_dev" + RESULT=0 } -handle_block_fc () { -: handle_block_fc $* +handle_fc () { + : handle_fc $* local DEV=$1 local cil controller_port controller_dev # SCSI-FC device @@ -248,34 +198,32 @@ handle_block_fc () { fc_tgt_num="${fc_tgt_path##*/}" fc_tgt_dev="${fc_tgt_path}/fc_transport:${fc_tgt_num}" if [ -e "$fc_tgt_dev/port_name" ]; then - read wwpn < $fc_tgt_dev/port_name + read wwpn < $fc_tgt_dev/port_name fi if [ -z "$wwpn" ] ; then - : no WWPN - RESULT=1 - return + : no WWPN + RESULT=1 + return fi # Linux currently knows about 32bit luns tmp_lun3=$(printf "%04x" $(($fc_tgt_lun & 0xFFFF))) tmp_lun2=$(printf "%04x" $(( ($fc_tgt_lun >> 16) & 0xFFFF))) tmp_lun1="0000" tmp_lun0="0000" - if (($fc_tgt_lun == 0)) ; then - lun="0x0000000000000000" + lun="0x0000000000000000" else - lun="0x${tmp_lun3}${tmp_lun2}${tmp_lun1}${tmp_lun0}" + lun="0x${tmp_lun3}${tmp_lun2}${tmp_lun1}${tmp_lun0}" fi controller_dev="${fc_tgt_path%/host[0-9]*}" - # FC devices are always endpoints d="fc-${wwpn}:${lun}" D="$controller_dev" RESULT=0 } -handle_block_sas () { - : handle_block_sas $* +handle_sas () { + : handle_sas $* local DEV=$1 local cil adapter controller_dev # SAS device @@ -286,34 +234,31 @@ handle_block_sas () { sas_rphy_id="${sas_phy_path##*/}" sas_phy_dev="${sas_host_path}/${sas_phy_id}/sas_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 + 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 - RESULT=1 - return + : no initiator address + RESULT=1 + return fi sas_phy_address="$phy_address:$phy_port:$phy_id" sas_rphy_dev="${sas_host_path}/${sas_phy_id}/${sas_rphy_id}/sas_rphy:${sas_rphy_id}" if [ -e "$sas_rphy_dev/sas_address" ]; then - read rphy_address < $sas_rphy_dev/sas_address - read rphy_id < $sas_rphy_dev/phy_identifier + read rphy_address < $sas_rphy_dev/sas_address + read rphy_id < $sas_rphy_dev/phy_identifier fi if [ -z "$rphy_address" ] ; then - : no initiator address - RESULT=1 - return + : no initiator address + RESULT=1 + return fi sas_rphy_address="$rphy_address:$rphy_id" - controller_dev="${sas_host_path%/host[0-9]*}" - # SAS devices are always endpoints d="sas-${sas_phy_address}-${sas_rphy_address}" D="$controller_dev" - RESULT=0 } @@ -328,10 +273,12 @@ handle_usb () { while [ ! -z "$host_dev_path" ] ; do case "$host_dev_path" in */usb*) - usb_host_path=$host_dev_path - host_dev_path="${host_dev_path%/*}" - ;; - *) break ;; + usb_host_path=$host_dev_path + host_dev_path="${host_dev_path%/*}" + ;; + *) + break + ;; esac done : host_dev_path $host_dev_path @@ -341,142 +288,140 @@ handle_usb () { usb_host_offset=$(get_port_offset usb $usb_host_num) usb_host_port=$(($usb_host_num - $usb_host_offset)) cd "$OPWD" - if [ "$d" ] ; then - d="usb-$usb_host_port:$port_num-${d}" + d="usb-$usb_host_port:$port_num-${d}" else - d="usb-$usb_host_port:$port_num" + d="usb-$usb_host_port:$port_num" fi - D="$host_dev_path" RESULT=0 } -handle_block () { - 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 - fi - fi - cd $full_sysfs_path/device - fi - full_sysfs_device_path="`pwd -P`" - cd "$OPWD" - D=$full_sysfs_device_path - while [ ! -z "$D" ] ; do - case "$D" in - */ide[0-9]/[0-9].[0-9]*|*/ide[0-9][0-9]/[0-9][0-9].[0-9]*) - handle_block_ide "$D" - ;; - */css0/*) - if [ -r $full_sysfs_device_path/wwpn ]; then - read wwpn < $full_sysfs_device_path/wwpn - fi - if [ -r $full_sysfs_device_path/fcp_lun ]; then - read lun < $full_sysfs_device_path/fcp_lun - fi - if [ -r $full_sysfs_device_path/hba_id ]; then - read bus_id < $full_sysfs_device_path/hba_id - fi - if [ "$bus_id" -a "$wwpn" -a "$lun" ]; then - # S/390 zfcp adapter - d="ccw-$bus_id-zfcp-$wwpn:$lun" - RESULT=0 +handle_device () { + full_sysfs_path="$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 $full_sysfs_path else - # DASD devices - bus="ccw" - adapter=${D##*/} - d="$bus-$adapter" - RESULT=0 + # 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 + fi + fi + cd $full_sysfs_path/device fi - D= - ;; - */rport-[0-9]*:[0-9]*-[0-9]*/*) - handle_block_fc "$D" - ;; - */phy-[0-9]*:[0-9]*/*) - handle_block_sas "$D" - ;; - */fw-host[0-9]*/*) - handle_block_firewire "$D" - ;; - */host[0-9]*/[0-9]*:[0-9]*:[0-9]*:[0-9]*) - handle_block_scsi "$D" - ;; - */usb[0-9]*/[0-9]*/*) - handle_usb "$D" - ;; - */pci[0-9]*:[0-9]*) - handle_pci "$D" - ;; - */devices) - D= - ;; - *) - : not handled - RESULT=1 - return - ;; - esac - done + full_sysfs_device_path="`pwd -P`" + cd "$OPWD" + D=$full_sysfs_device_path + while [ ! -z "$D" ] ; do + case "$D" in + */ide[0-9]/[0-9].[0-9]*|*/ide[0-9][0-9]/[0-9][0-9].[0-9]*) + handle_ide "$D" + ;; + */css0/*) + if [ -r $full_sysfs_device_path/wwpn ]; then + read wwpn < $full_sysfs_device_path/wwpn + fi + if [ -r $full_sysfs_device_path/fcp_lun ]; then + read lun < $full_sysfs_device_path/fcp_lun + fi + if [ -r $full_sysfs_device_path/hba_id ]; then + read bus_id < $full_sysfs_device_path/hba_id + fi + if [ "$bus_id" -a "$wwpn" -a "$lun" ]; then + # S/390 zfcp adapter + d="ccw-$bus_id-zfcp-$wwpn:$lun" + RESULT=0 + else + # DASD devices + bus="ccw" + adapter=${D##*/} + d="$bus-$adapter" + RESULT=0 + fi + D= + ;; + */rport-[0-9]*:[0-9]*-[0-9]*/*) + handle_fc "$D" + ;; + */phy-[0-9]*:[0-9]*/*) + handle_sas "$D" + ;; + */fw-host[0-9]*/*) + handle_firewire "$D" + ;; + */host[0-9]*/[0-9]*:[0-9]*:[0-9]*:[0-9]*) + handle_scsi "$D" + ;; + */usb[0-9]*/[0-9]*/*) + handle_usb "$D" + ;; + */pci[0-9]*:[0-9]*) + handle_pci "$D" + ;; + */devices) + D= + ;; + *) + : not handled + RESULT=1 + return + ;; + esac + done + if [ "$TYPE" == "scsi_tape" ] ; then + devname=${full_sysfs_path##*/} + rewind="${devname%%st*}" + mode="${devname##*st}" + case "$mode" in + *l) + mode="l" + ;; + *m) + mode="m" + ;; + *a) + mode="a" + ;; + *) + mode="" + ;; + esac + if [ "$d" ]; then + d="$d-${rewind}st${mode}" + fi + fi +} - if [ "$TYPE" == "scsi_tape" ] ; then - devname=${full_sysfs_path##*/} - rewind="${devname%%st*}" - mode="${devname##*st}" - case "$mode" in - *l) - mode="l" +case "$TYPE" in + block) + handle_device + echo "ID_PATH=$d" ;; - *m) - mode="m" + scsi_tape) + handle_device + echo "ID_PATH=$d" ;; - *a) - mode="a" + input) + handle_device + echo "ID_PATH=$d" ;; - *) - mode="" + *) + RESULT=1 ;; - esac - if [ "$d" ]; then - d="$d-${rewind}st${mode}" - fi - fi -} - -case "$TYPE" in - block) - handle_block - echo "ID_PATH=$d" - ;; - scsi_tape) - handle_block - echo "ID_PATH=$d" - ;; - input) - handle_usb $SYSFS$DEVPATH/device - echo "ID_PATH=$d" - ;; - *) - RESULT=1 - ;; esac + exit $RESULT |