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https://github.com/AuxXxilium/eudev.git
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path_id: add bus to USB path
This commit is contained in:
Hannes Reinecke
Kay Sievers
parent
63645a3dfc
commit
24c27caf82
1
TODO
1
TODO
@ -17,4 +17,3 @@ udev version:
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(we rely on the kernel "uevent" triggers of kernel 2.6.15 and no longer
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want to guess event properties from sysfs like udevstart is doing it)
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o remove use of "device" link in path_id
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@ -29,8 +29,7 @@ KERNEL=="sd*[0-9]|dasd*[0-9]", IMPORT{parent}=="ID_*"
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KERNEL=="sd*[0-9]|dasd*[0-9]", ENV{ID_SERIAL}=="?*", SYMLINK+="disk/by-id/$env{ID_BUS}-$env{ID_SERIAL}-part%n"
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# by-path (shortest physical path)
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KERNEL=="*[!0-9]|sr*", ENV{ID_TYPE}=="?*", IMPORT{program}="/sbin/path_id %p", SYMLINK+="disk/by-path/$env{ID_PATH}"
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KERNEL=="st*", ENV{ID_TYPE}=="?*", IMPORT{program}="/sbin/path_id %p", SYMLINK+="tape/by-path/$env{ID_PATH}"
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KERNEL=="*[!0-9]|sr*|st*", ENV{ID_TYPE}=="?*", IMPORT{program}="/sbin/path_id %p", SYMLINK+="disk/by-path/$env{ID_PATH}"
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KERNEL=="sr*|st*", GOTO="persistent_storage_end"
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KERNEL=="*[0-9]", IMPORT{parent}=="ID_*"
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KERNEL=="*[0-9]", ENV{ID_PATH}=="?*", SYMLINK+="disk/by-path/$env{ID_PATH}-part%n"
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117
extras/path_id
Normal file → Executable file
117
extras/path_id
Normal file → Executable file
@ -1,9 +1,9 @@
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#!/bin/sh
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# provide the shortest possible unique hardware path to a block device
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# for the udev persistent disk device naming scheme
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# provide the shortest possible unique hardware path to a device
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# for the Linux Persistent Device Naming scheme
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#
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# Copyright (C) 2005 SUSE Linux Products GmbH
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# Copyright (C) 2005-2006 SUSE Linux Products GmbH
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# Author:
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# Hannes Reinecke <hare@suse.de>
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#
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@ -12,53 +12,12 @@
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# Free Software Foundation version 2 of the License.
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#
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# to be called from a udev rule to return the name for a symlink
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# DEVPATH=/block/sda/sda3 path_id
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# DEVPATH=<devpath>; path_id
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# path_id <devpath>
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# examples for all block devices on a system:
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# for i in `find /sys/class/block`; do DEVPATH="`echo $i | sed -e 's@^/sys\|/dev@@g'`"; path_id; done
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# SCSI cdrom
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# /class/block/sr0 -> /devices/pci0002:30/0002:30:0c.0/host0/target0:0:0/0:0:1:0
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# pci-0002:30:0c.0-scsi-0:0:1:0
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#
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# SCSI disk
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# /class/block/sda -> /devices/pci0002:30/0002:30:0c.0/host0/target0:0:0/0:0:4:0
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# pci-0002:30:0c.0-scsi-0:0:4:0
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#
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# SATA disk, 4 channels per controller
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# /class/block/sda -> /devices/pci0001:00/0001:00:07.0/0001:05:0c.0/host0/target0:0:0/0:0:0:0
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# pci-0001:05:0c.0-scsi-0:0:0:0
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#
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# IDE disk
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# /class/block/hda -> /devices/pci0002:02/0002:02:0d.0/ide0/0.0
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# pci-0002:02:0d.0-ide-0.0
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#
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# IDE cdrom on a Mac ASIC:
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# /class/block/hdc -> /devices/pci0001:01/0001:01:17.0/0.80000000:mac-io/0.00020000:ata-3/ide1/1.0
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# mac-io_ata-3_master
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#
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# IDE cdrom on a Mac ASIC, with ide-scsi:
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# /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
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# mac-io_ata-4_slave
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# USB CDrom drive without 'serial' number:
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# reusing 'product' and 'manufacturer' string, if available
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# /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
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# usb-storage-odd-Freecom-USIDERev930:0:0:0
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# devices may have several interfaces on one PCI device, like IDE:
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# pci-0001:00:04.0_ide1-master
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# pci-0001:00:04.0_ide2-master
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# pci-0001:00:04.0_ide2-slave
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# they are marked as ports, it is expected that the driver shows
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# ide1 even if there is nothing connected to either master or slave
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# interface
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#
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# match order is important.
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# first IDE to find ide-scsi devices, then SCSI
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# first usb-storage, then firewire sbp2, then the rest
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SYSFS=/sys
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RESULT=1
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TYPE=
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@ -121,29 +80,28 @@ handle_pci () {
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cd -P $1
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DEV=${PWD}
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pci_id=${DEV##*/}
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host_dev_path=$DEV
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while [ ! -z "$host_dev_path" ] ; do
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case "$host_dev_path" in
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*/pci[0-9]*)
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host_dev_path=${host_dev_path%/*}
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;;
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*) break;;
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*)
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break
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;;
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esac
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done
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d="pci-$pci_id-$d"
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D="$host_dev_path"
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RESULT=0
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}
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handle_block_ide () {
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: handle_block_ide $*
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handle_ide () {
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: handle_ide $*
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local DEV=$1
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local port idedev idecontroller
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# IDE
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: DEV $DEV
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port=${DEV##*/}
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idedev=${DEV%/*}
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idecontroller=${idedev%/*}
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@ -160,8 +118,8 @@ handle_block_ide () {
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;;
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*)
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echo "Error: $idedev is neither master or slave" >&2
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;;
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esac
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cd $idecontroller
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offset="`get_port_offset ide ${port%.*}`"
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cd "$OPWD"
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@ -176,8 +134,8 @@ handle_block_ide () {
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RESULT=0
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}
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handle_block_scsi () {
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: handle_block_scsi $*
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handle_scsi () {
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: handle_scsi $*
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local DEV=$1
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local cil controller_port controller_dev
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# SCSI device
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@ -190,10 +148,8 @@ handle_block_scsi () {
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for tid in ${target_id}* ; do
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target_num=$(( $target_num + 1 ))
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done
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controller_port=${target_dev%/*}
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controller_dev="${controller_port%/*}"
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: controller_dev $controller_dev
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: controller_port $controller_port
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# a host controller may have more than one interface/port
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@ -204,41 +160,35 @@ handle_block_scsi () {
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cd "$OPWD"
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controller_port=$(( $controller_port - $controller_offset))
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scsi_id="scsi-${controller_port}:${cil}"
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if [ "$d" ] ; then
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d="${scsi_id}-$d"
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else
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d="$scsi_id"
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fi
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D="$controller_dev"
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RESULT=0
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}
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handle_block_firewire () {
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:handle_block_firewire $*
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handle_firewire () {
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:handle_firewire $*
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local DEV=$1
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if [ -f "$D/ieee1394_id" ] ; then
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read ieee1394_id < $D/ieee1394_id
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fi
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if [ -z "$ieee1394_id" ] ; then
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: no IEEE1394 ID
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RESULT=1
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return
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fi
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fw_host_dev=${DEV%/fw-host*}
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# IEEE1394 devices are always endpoints
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d="ieee1394-0x$ieee1394_id"
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D="$fw_host_dev"
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RESULT=0
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}
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handle_block_fc () {
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: handle_block_fc $*
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handle_fc () {
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: handle_fc $*
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local DEV=$1
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local cil controller_port controller_dev
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# SCSI-FC device
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@ -260,22 +210,20 @@ handle_block_fc () {
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tmp_lun2=$(printf "%04x" $(( ($fc_tgt_lun >> 16) & 0xFFFF)))
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tmp_lun1="0000"
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tmp_lun0="0000"
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if (($fc_tgt_lun == 0)) ; then
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lun="0x0000000000000000"
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else
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lun="0x${tmp_lun3}${tmp_lun2}${tmp_lun1}${tmp_lun0}"
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fi
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controller_dev="${fc_tgt_path%/host[0-9]*}"
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# FC devices are always endpoints
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d="fc-${wwpn}:${lun}"
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D="$controller_dev"
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RESULT=0
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}
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handle_block_sas () {
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: handle_block_sas $*
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handle_sas () {
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: handle_sas $*
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local DEV=$1
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local cil adapter controller_dev
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# SAS device
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@ -307,13 +255,10 @@ handle_block_sas () {
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return
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fi
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sas_rphy_address="$rphy_address:$rphy_id"
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controller_dev="${sas_host_path%/host[0-9]*}"
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# SAS devices are always endpoints
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d="sas-${sas_phy_address}-${sas_rphy_address}"
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D="$controller_dev"
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RESULT=0
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}
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@ -331,7 +276,9 @@ handle_usb () {
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usb_host_path=$host_dev_path
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host_dev_path="${host_dev_path%/*}"
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;;
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*) break ;;
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*)
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break
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;;
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esac
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done
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: host_dev_path $host_dev_path
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@ -341,18 +288,16 @@ handle_usb () {
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usb_host_offset=$(get_port_offset usb $usb_host_num)
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usb_host_port=$(($usb_host_num - $usb_host_offset))
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cd "$OPWD"
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if [ "$d" ] ; then
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d="usb-$usb_host_port:$port_num-${d}"
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else
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d="usb-$usb_host_port:$port_num"
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fi
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D="$host_dev_path"
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RESULT=0
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}
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handle_block () {
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handle_device () {
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full_sysfs_path="$SYSFS$DEVPATH"
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if [ -L $full_sysfs_path/subsystem ]; then
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# new sysfs block layout
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@ -384,7 +329,7 @@ handle_block () {
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while [ ! -z "$D" ] ; do
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case "$D" in
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*/ide[0-9]/[0-9].[0-9]*|*/ide[0-9][0-9]/[0-9][0-9].[0-9]*)
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handle_block_ide "$D"
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handle_ide "$D"
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;;
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*/css0/*)
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if [ -r $full_sysfs_device_path/wwpn ]; then
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@ -410,16 +355,16 @@ handle_block () {
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D=
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;;
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*/rport-[0-9]*:[0-9]*-[0-9]*/*)
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handle_block_fc "$D"
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handle_fc "$D"
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;;
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*/phy-[0-9]*:[0-9]*/*)
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handle_block_sas "$D"
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handle_sas "$D"
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;;
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*/fw-host[0-9]*/*)
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handle_block_firewire "$D"
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handle_firewire "$D"
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;;
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*/host[0-9]*/[0-9]*:[0-9]*:[0-9]*:[0-9]*)
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handle_block_scsi "$D"
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handle_scsi "$D"
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;;
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*/usb[0-9]*/[0-9]*/*)
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handle_usb "$D"
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@ -437,7 +382,6 @@ handle_block () {
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;;
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esac
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done
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if [ "$TYPE" == "scsi_tape" ] ; then
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devname=${full_sysfs_path##*/}
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rewind="${devname%%st*}"
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@ -464,19 +408,20 @@ handle_block () {
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case "$TYPE" in
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block)
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handle_block
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handle_device
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echo "ID_PATH=$d"
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;;
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scsi_tape)
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handle_block
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handle_device
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echo "ID_PATH=$d"
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;;
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input)
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handle_usb $SYSFS$DEVPATH/device
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handle_device
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echo "ID_PATH=$d"
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;;
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*)
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RESULT=1
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;;
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esac
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exit $RESULT
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