mirror of
https://github.com/gentoo-mirror/guru.git
synced 2026-07-20 20:43:09 -04:00
94 lines
2.7 KiB
Bash
94 lines
2.7 KiB
Bash
#!/bin/bash
|
|
|
|
# Author: Geaaru
|
|
# Date: October 23, 2014
|
|
# Version: 0.1.0
|
|
# License: GPL 2.0
|
|
|
|
# Description: Script for udev symlink creation of
|
|
# scsi disk attached and visible under
|
|
# /dev/disk/by-path/ with name convention
|
|
# used in openstack LVM iscsi driver.
|
|
#
|
|
# Requirements: lsscsi (for retrieve LUN ID, I don't know how can i do that from udev/iscsiadm)
|
|
|
|
# Rules for UDEV must in this format:
|
|
# KERNEL=="sd*", BUS=="scsi", PROGRAM="/etc/nova/scsi-openscsi-link.sh %b",SYMLINK+="disk/by-path/%c"
|
|
|
|
# NOTE: it seems that input params %b or others are not passed to script.
|
|
# I try to retrieve it from environment variables.
|
|
|
|
if [[ -z "$DEVTYPE" || -z "$ID_BUS" ]] ; then
|
|
exit 1
|
|
fi
|
|
|
|
echo "--------------------" >> /tmp/udev.log
|
|
echo "ENV => `env`" >> /tmp/udev.log
|
|
echo "--------------------" >> /tmp/udev.log
|
|
|
|
if [[ $DEVTYPE != "disk" || $ID_BUS != "scsi" ]]; then
|
|
echo "EXIT 1" >> /tmp/udev.log
|
|
exit 1
|
|
fi
|
|
|
|
# ID_SCSI variable what identify ?
|
|
|
|
HOST=`echo "$DEVPATH" | awk '{ split($0, word, "/"); print substr(word[4], 5); }'`
|
|
|
|
|
|
|
|
# Bins
|
|
iscsiadm=/usr/sbin/iscsiadm
|
|
lsscsi=/usr/bin/lsscsi
|
|
|
|
[ -e /sys/class/iscsi_host ] || exit 1
|
|
|
|
# Create file path like this:
|
|
# /sys/class/iscsi_host/host11/device/session3/iscsi_session/session3/targetname
|
|
file="/sys/class/iscsi_host/host${HOST}/device/session*/iscsi_session*/session*/targetname"
|
|
|
|
target_iqn=$(cat ${file})
|
|
|
|
if [ -z "${target_iqn}" ] ; then
|
|
echo "EXIT 2" >> /tmp/udev.log
|
|
exit 1
|
|
fi
|
|
|
|
# Retrieve target_port because I can't retrieve it with iscsi_id
|
|
# /lib/udev/scsi_id -g -x /dev/sdg
|
|
# ID_SCSI=1
|
|
# ID_VENDOR=IET
|
|
# ID_VENDOR_ENC=IET\x20\x20\x20\x20\x20
|
|
# ID_MODEL=VIRTUAL-DISK
|
|
# ID_MODEL_ENC=VIRTUAL-DISK
|
|
# ID_REVISION=0001
|
|
# ID_TYPE=disk
|
|
# ID_SERIAL=1IET_00010001
|
|
# ID_SERIAL_SHORT=IET_00010001
|
|
# ID_SCSI_SERIAL= beaf11a
|
|
|
|
# iscsiadm -m node | grep --colour=none iqn.2014-09.org.openstack:vol-cinder-f48f0a69-e871-4c47-9cd3-3ccb8c811363 | cut -d',' -f 1
|
|
|
|
tp_ispresent=$(${iscsiadm} -m node | grep --colour=none ${target_iqn} | wc -l)
|
|
if [ x$tp_ispresent = x0 ] ; then
|
|
# Target is not present. Ignore it.
|
|
echo "EXIT 3" >> /tmp/udev.log
|
|
exit 1
|
|
fi
|
|
|
|
target_portal=$(${iscsiadm} -m node | grep --colour=none ${target_iqn} | cut -d',' -f 1)
|
|
#target=$(${iscsiadm} -m node | grep --colour=none ${target_iqn} | cut -d' ' -f 1)
|
|
#target_portal=$(echo ${target} | cut -d',' -f 1)
|
|
target_lun=$(${lsscsi} | grep $DEVNAME | sed 's/.[0-9]*:[0-9]*:[0-9]*:\([0-9]*\).*/\1/')
|
|
|
|
echo "TARGET_PORTAL=$target_portal" >> /tmp/udev.log
|
|
echo "TARGET_LUN=$target_lun" >> /tmp/udev.log
|
|
|
|
linkname="ip-${target_portal}-iscsi-${target_iqn}-lun-${target_lun}"
|
|
|
|
echo "RETURN ${linkname}" >> /tmp/udev.log
|
|
|
|
echo "${linkname}"
|
|
|
|
exit 0
|