You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
80 lines
2.1 KiB
80 lines
2.1 KiB
#!/bin/bash
|
|
#
|
|
# scsi-devfs.sh: udev external PROGRAM script
|
|
#
|
|
# Copyright 2004 Richard Gooch <rgooch@atnf.csiro.au>
|
|
# Copyright 2004 Fujitsu Ltd.
|
|
# Distributed under the GNU Copyleft version 2.0.
|
|
#
|
|
# return devfs-names for scsi-devices
|
|
# Usage in udev.rules:
|
|
# BUS="scsi", KERNEL="sd*", PROGRAM="/lib/udev/scsi-devfs.sh sd %b %n", NAME="%c{1}", SYMLINK="%c{2} %k %c{3} %c{4}"
|
|
# BUS="scsi", KERNEL="sr*", PROGRAM="/lib/udev/scsi-devfs.sh sr %b %n", NAME="%c{1}", SYMLINK="%c{2} %k %c{3} %c{4}"
|
|
# BUS="scsi", KERNEL="st*", PROGRAM="/lib/udev/scsi-devfs.sh st %b %n", NAME="%c{1}", SYMLINK="%c{2} %k %c{3} %c{4}"
|
|
# BUS="scsi", KERNEL="sg*", PROGRAM="/lib/udev/scsi-devfs.sh sg %b %n", NAME="%c{1}", SYMLINK="%c{2} %k %c{3} %c{4}"
|
|
|
|
# Find out where sysfs is mounted. Exit if not available
|
|
sysfs=`grep -F sysfs /proc/mounts | awk '{print $2}'`
|
|
if [ "$sysfs" = "" ]; then
|
|
echo "sysfs is required"
|
|
exit 1
|
|
fi
|
|
cd $sysfs/bus/scsi/devices
|
|
|
|
case "$1" in
|
|
sd)
|
|
# Extract partition component
|
|
if [ "$3" = "" ]; then
|
|
lpart="disc"
|
|
spart=""
|
|
else
|
|
lpart="part$3"
|
|
spart="p$3"
|
|
fi
|
|
;;
|
|
sr)
|
|
lpart="cdrom"
|
|
spart=""
|
|
;;
|
|
st)
|
|
# Not supported yet
|
|
exit 1
|
|
;;
|
|
sg)
|
|
lpart="generic"
|
|
spart=""
|
|
;;
|
|
*)
|
|
exit 1
|
|
;;
|
|
esac
|
|
|
|
# Extract SCSI logical address components
|
|
scsi_host=`echo $2 | cut -f 1 -d:`
|
|
scsi_bus=`echo $2 | cut -f 2 -d:`
|
|
scsi_target=`echo $2 | cut -f 3 -d:`
|
|
scsi_lun=`echo $2 | cut -f 4 -d:`
|
|
|
|
# Generate long and short common name parts
|
|
l_com="bus$scsi_bus/target$scsi_target/lun$scsi_lun/$lpart"
|
|
s_com="b${scsi_bus}t${scsi_target}u${scsi_lun}$spart"
|
|
|
|
# Generate long and short logical names
|
|
l_log="scsi/host$scsi_host/$l_com"
|
|
s_log="$1/c${scsi_host}${s_com}"
|
|
|
|
if [ -d /dev/discs ] ; then
|
|
for x in /dev/discs/disc* ; do
|
|
if readlink `ls -d $x/* | awk '{print $0; exit;}'` | grep -q "${l_log%$lpart}" ; then
|
|
x=`echo $x | cut -f3 -dc` # gives the number in disc0
|
|
break
|
|
fi
|
|
unset x
|
|
done
|
|
fi
|
|
|
|
if [ -z "${x}" ] ; then
|
|
x="`ls /dev/discs/ 2> /dev/null | grep -c .`"
|
|
fi
|
|
|
|
echo $l_log $s_log discs/disc${x}/${lpart}
|