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#!/bin/bash # # osd_login : This script is part of the autologin feature # mandated by the pnfs-objects standard. # It is called from objlayoutdriver.ko in the kernel. # Copyright (C) 2012, Sachin Bhamare <sbhamare@panasas.com> # Copyright (C) 2012, Boaz Harrosh <bharrosh@panasas.com> # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License version 2 as # published by the Free Software Foundation. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, # MA 02110-1301 USA umask 022 PATH="/sbin:/usr/sbin:/bin:/usr/bin" iscsiadm=/sbin/iscsiadm PARENT_PID=$BASHPID WATCHDOG_TIMEOUT=15 protocol="" portal="" uri="" osdname="" systemid="" usage() { echo "Usage: $0 -u <URI> -o <OSDNAME> -s <SYSTEMID>" echo "Options:" echo "-u target uri e.g. iscsi://<ip>:<port>" echo "-o osdname of the target OSD" echo "-s systemid of the target OSD" } parse_cmdline() { argc=$# if [ $# -lt 3 ]; then usage exit 1 fi # parse the input arguments while getopts "u:o:s:" options; do case $options in u ) uri=$OPTARG;; o ) osdname=$OPTARG;; s ) systemid=$OPTARG;; \? ) usage exit 1;; * ) usage exit 1;; esac done echo "-u : $uri" echo "-o : $osdname" echo "-s : $systemid" protocol=`echo $uri | awk -F ':' '{print $1}'` portal=`echo $uri | awk -F '//' '{print $2}'` } watchdog() { timeout=$1 portal=$2 sleep $timeout if kill -9 $PARENT_PID; then echo "watchdog : Timed out (>$timeout seconds) while login into $portal" | logger -t "osd_login" fi echo "watchdog: exiting .." exit 2 } login_iscsi_osd() { echo "login into: $1" if ! $iscsiadm -m discovery -o nonpersistent -t sendtargets -p $1 --login; then echo "$iscsiadm -m discovery -t sendtargets -p $1 --login returned error $? !" sleep 1; fi } echo "============= osd_login =========" echo "progname : $0" parse_cmdline "$@" echo "protocol: $protocol" echo "portal: $portal" watchdog $WATCHDOG_TIMEOUT $portal & watchdog_pid=$! case $protocol in iscsi) login_iscsi_osd $portal |& logger -t "osd_login" ;; *) echo "Error: protocol $protocol not supported !" | logger -t "osd_login" ;; esac kill -9 $watchdog_pid exit 0