354 lines
10 KiB
Bash
354 lines
10 KiB
Bash
#!/bin/sh
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#
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# Bacula(R) - The Network Backup Solution
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#
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# Copyright (C) 2000-2016 Kern Sibbald
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#
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# The original author of Bacula is Kern Sibbald, with contributions
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# from many others, a complete list can be found in the file AUTHORS.
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#
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# You may use this file and others of this release according to the
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# license defined in the LICENSE file, which includes the Affero General
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# Public License, v3.0 ("AGPLv3") and some additional permissions and
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# terms pursuant to its AGPLv3 Section 7.
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#
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# This notice must be preserved when any source code is
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# conveyed and/or propagated.
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#
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# Bacula(R) is a registered trademark of Kern Sibbald.
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#
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# If you set in your Device resource
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#
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# Changer Command = "path-to-this-script/mtx-changer %c %o %S %a %d"
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# you will have the following input to this script:
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#
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# So Bacula will always call with all the following arguments, even though
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# in come cases, not all are used.
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#
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# mtx-changer "changer-device" "command" "slot" "archive-device" "drive-index"
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# $1 $2 $3 $4 $5
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#
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# for example:
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#
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# mtx-changer /dev/sg0 load 1 /dev/nst0 0 (on a Linux system)
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#
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# will request to load the first cartidge into drive 0, where
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# the SCSI control channel is /dev/sg0, and the read/write device
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# is /dev/nst0.
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#
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# The commands are:
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# Command Function
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# unload unload a given slot
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# load load a given slot
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# loaded which slot is loaded?
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# list list Volume names (requires barcode reader)
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# slots how many slots total?
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# listall list all info
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# transfer
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#
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# Slots are numbered from 1 ...
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# Drives are numbered from 0 ...
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#
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#
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# If you need to an offline, refer to the drive as $4
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# e.g. mt -f $4 offline
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#
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# Many changers need an offline after the unload. Also many
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# changers need a sleep 60 after the mtx load.
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#
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# N.B. If you change the script, take care to return either
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# the mtx exit code or a 0. If the script exits with a non-zero
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# exit code, Bacula will assume the request failed.
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#
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# myversion must be the same as version in mtx-changer.conf
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myversion=2
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# source our conf file
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if test ! -f /etc/bacula/scripts/mtx-changer.conf ; then
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echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
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echo "ERROR: /etc/bacula/scripts/mtx-changer.conf file not found!!!!"
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echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
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exit 1
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fi
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. /etc/bacula/scripts/mtx-changer.conf
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if test "${version}" != "${myversion}" ; then
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echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
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echo "ERROR: /etc/bacula/scripts/mtx-changer.conf has wrong version. Wanted ${myversion}, got ${version} !!!"
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echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
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exit 1
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fi
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MTX=/usr/sbin/mtx
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if test ${debug_log} -ne 0 ; then
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touch /var/lib/bacula/mtx.log
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fi
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dbgfile="/var/lib/bacula/mtx.log"
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debug() {
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if test -f $dbgfile -a ${debug_level} -ge $1; then
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echo "`date +%m%d-%H:%M:%S.%N|cut -c1-16` ${chgr_id} $2" >> $dbgfile
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fi
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}
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#
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# Create a temporary file
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#
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make_temp_file() {
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TMPFILE=`mktemp /var/lib/bacula/mtx.XXXXXXXXXX`
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if test x${TMPFILE} = x; then
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TMPFILE="/var/lib/bacula/mtx.$$"
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if test -f ${TMPFILE}; then
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echo "ERROR: Temp file security problem on: ${TMPFILE}"
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exit 1
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fi
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fi
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}
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#
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# Create a temporary file for stderr
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#
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# Note, this file is used because sometime mtx emits
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# unexpected error messages followed by the output
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# expected during success.
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# So we separate STDOUT and STDERR in
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# certain of the mtx commands. The contents of STDERR
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# is then printed after the STDOUT produced by mtx
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# thus we sometimes get better changer results.
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#
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make_err_file() {
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ERRFILE=`mktemp /var/lib/bacula/mtx.err.XXXXXXXXXX`
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if test x${ERRFILE} = x; then
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ERRFILE="/var/lib/bacula/mtx.err.$$"
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if test -f ${ERRFILE}; then
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echo "ERROR: Temp file security problem on: ${ERRFILE}"
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exit 1
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fi
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fi
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}
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#
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# The purpose of this function to wait a maximum
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# time for the drive. It will
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# return as soon as the drive is ready, or after
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# waiting a maximum of 300 seconds.
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# Note, this is very system dependent, so if you are
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# not running on Linux, you will probably need to
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# re-write it, or at least change the grep target.
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# We've attempted to get the appropriate OS grep targets
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# in the code at the top of this script.
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#
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wait_for_drive() {
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i=0
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while [ $i -le 300 ]; do # Wait max 300 seconds
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if mt -f $1 status 2>&1 | grep "${ready}" >/dev/null 2>&1; then
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break
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fi
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debug $dbglvl "Device $1 - not ready, retrying..."
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sleep 1
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i=`expr $i + 1`
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done
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}
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# check parameter count on commandline
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#
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check_parm_count() {
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pCount=$1
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pCountNeed=$2
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if test $pCount -lt $pCountNeed; then
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echo "ERROR: usage: mtx-changer ctl-device command [slot archive-device drive-index]"
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echo " Insufficient number of arguments given."
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if test $pCount -lt 2; then
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echo " Mimimum usage is first two arguments ..."
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else
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echo " Command expected $pCountNeed arguments"
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fi
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exit 1
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fi
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}
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# Check for special cases where only 2 arguments are needed,
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# all others are a minimum of 5
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#
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case $2 in
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list|listall)
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check_parm_count $# 2
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;;
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slots)
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check_parm_count $# 2
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;;
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transfer)
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check_parm_count $# 4
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;;
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*)
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check_parm_count $# 5
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;;
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esac
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# Setup arguments
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ctl=$1
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cmd="$2"
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slot=$3
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device=$4
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drive=$5
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debug $dbglvl "Parms: $ctl $cmd $slot $device $drive"
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case $cmd in
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unload)
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if test ${offline} -eq 1 ; then
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mt -f $device offline
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fi
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if test ${offline_sleep} -ne 0 ; then
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sleep ${offline_sleep}
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fi
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make_err_file
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for i in 1 2 3 4 5 ; do
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debug $idbglvl "Doing mtx -f $ctl unload slot=$slot drv=$drive"
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${MTX} -f $ctl unload $slot $drive 2>${ERRFILE}
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rtn=$?
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if test $rtn -eq 0 ; then
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break
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fi
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grep "Error Code=" ${ERRFILE} 2>/dev/null 1>/dev/null
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if test $? -ne 0 ; then
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break
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fi
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sleep $i
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done
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cat ${ERRFILE}
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rm -f ${ERRFILE} >/dev/null 2>&1
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if test $rtn -ne 0 ; then
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debug $idbglvl "FAIL: mtx -f $ctl unload slot=$slot drv=$drive"
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fi
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exit $rtn
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;;
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load)
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make_err_file
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for i in 1 2 3 4 5 ; do
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debug $idbglvl "Doing mtx -f $ctl load slot=$slot drv=$drive"
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${MTX} -f $ctl load $slot $drive 2>${ERRFILE}
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rtn=$?
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if test $rtn -eq 0 ; then
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break
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fi
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grep "Error Code=" ${ERRFILE} 2>/dev/null 1>/dev/null
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if test $? -ne 0 ; then
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break
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fi
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sleep $i
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done
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if test ${load_sleep} -ne 0 ; then
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sleep ${load_sleep}
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fi
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wait_for_drive $device
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cat ${ERRFILE}
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rm -f ${ERRFILE} >/dev/null 2>&1
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if test $rtn -ne 0 ; then
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debug $idbglvl "FAIL: mtx -f $ctl load slot=$slot drv=$drive"
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fi
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exit $rtn
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;;
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list)
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make_temp_file
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if test ${inventory} -ne 0 ; then
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${MTX} -f $ctl inventory
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fi
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debug $dbglvl "Doing mtx -f $ctl list"
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${MTX} -f $ctl status >${TMPFILE}
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rtn=$?
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if test ${vxa_packetloader} -ne 0 ; then
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cat ${TMPFILE} | grep " *Storage Element [0-9]*:.*Full" | sed "s/ Storage Element //" | sed "s/Full :VolumeTag=//"
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else
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cat ${TMPFILE} | grep " Storage Element [0-9]*:.*Full" | awk "{print \$3 \$4}" | sed "s/Full *\(:VolumeTag=\)*//"
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fi
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cat ${TMPFILE} | grep "^Data Transfer Element [0-9]*:Full (Storage Element [0-9]" | awk '{printf "%s:%s\n",$7,$10}'
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rm -f ${TMPFILE} >/dev/null 2>&1
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if test $rtn -ne 0 ; then
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debug $idbglvl "FAIL: mtx -f $ctl list"
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fi
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exit $rtn
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;;
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listall)
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# Drive content: D:Drive num:F:Slot loaded:Volume Name
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# D:0:F:2:vol2 or D:Drive num:E
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# D:1:F:42:vol42
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# D:3:E
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#
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# Slot content:
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# S:1:F:vol1 S:Slot num:F:Volume Name
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# S:2:E or S:Slot num:E
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# S:3:F:vol4
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#
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# Import/Export tray slots:
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# I:10:F:vol10 I:Slot num:F:Volume Name
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# I:11:E or I:Slot num:E
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# I:12:F:vol40
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make_temp_file
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if test ${inventory} -ne 0 ; then
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${MTX} -f $ctl inventory
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fi
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debug $dbglvl "Doing mtx -f $ctl -- to list all"
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${MTX} -f $ctl status >${TMPFILE}
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rtn=$?
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# can be converted to awk+sed+cut, see below
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perl -ne '
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/Data Transfer Element (\d+):Empty/ && print "D:$1:E\n";
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/Data Transfer Element (\d+):Full \(Storage Element (\d+) Loaded\)(:VolumeTag =\s*(.+))?/ && print "D:$1:F:$2:$4\n";
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/Storage Element (\d+):Empty/ && print "S:$1:E\n";
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/Storage Element (\d+):Full( :VolumeTag=(.+))?/ && print "S:$1:F:$3\n";
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/Storage Element (\d+) IMPORT.EXPORT:Empty/ && print "I:$1:E\n";
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/Storage Element (\d+) IMPORT.EXPORT:Full( :VolumeTag=(.+))?/ && print "I:$1:F:$3\n";' ${TMPFILE}
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# If perl isn't installed, you can use by those commands
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#cat ${TMPFILE} | grep "Data Transfer Element" | awk "{print \"D:\"\$4 \$7 \$9 \$10}" | sed "s/=/:/" | sed "s/Full/F:/" | sed "s/Empty/E/"
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#cat ${TMPFILE} | grep -v "Data Transfer Element" | grep "Storage Element" | grep -v "IMPORT/EXPORT" | awk "{print \"S:\"\$3 \$4 \$5}" | sed "s/IMPORT\/EXPORT//" | sed "s/Full *:VolumeTag=/F:/" | sed "s/Empty/E/"
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#cat ${TMPFILE} | grep -v "Data Transfer Element" | grep "Storage Element" | grep "IMPORT/EXPORT" | awk "{print \"I:\"\$3 \$4 \$5}" | sed "s/IMPORT\/EXPORT//" | sed "s/Full *:VolumeTag=/F:/" | sed "s/Empty/E/"
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rm -f ${TMPFILE} >/dev/null 2>&1
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exit $rtn
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;;
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transfer)
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slotdest=$device
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debug $dbglvl "Doing transfer from $slot to $slotdest"
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${MTX} -f $ctl transfer $slot $slotdest
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rtn=$?
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if test $rtn -ne 0 ; then
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debug $idbglvl "FAIL: mtx -f $ctl transfer from=$slot to=$slotdest"
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fi
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exit $rtn
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;;
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loaded)
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make_temp_file
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debug $idbglvl "Doing mtx -f $ctl $drive -- to find what is loaded"
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${MTX} -f $ctl status >${TMPFILE}
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rtn=$?
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cat ${TMPFILE} | grep "^Data Transfer Element $drive:Full" | awk "{print \$7}"
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cat ${TMPFILE} | grep "^Data Transfer Element $drive:Empty" | awk "{print 0}"
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rm -f ${TMPFILE} >/dev/null 2>&1
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if test $rtn -ne 0 ; then
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debug $idbglvl "FAIL: mtx -f $ctl loaded drv=$drive"
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fi
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exit $rtn
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;;
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slots)
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debug $dbglvl "Doing mtx -f $ctl -- to get count of slots"
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${MTX} -f $ctl status | grep " *Storage Changer" | awk "{print \$5}"
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rtn=$?
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if test $rtn -ne 0 ; then
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debug $idbglvl "FAIL: mtx -f $ctl slots"
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fi
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;;
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esac
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