2017-02-28 15:13:49 +01:00
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#!/bin/bash
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# Path to backuppcfs script
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BACKUPPCFS_PATH="/usr/local/sbin/backuppcfs"
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BACKUPPCFS_MNT="/mnt/backuppcfs"
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MNT_DIR=/mnt/usb
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LUKS_DM_NAME=bkp-usb
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LUKS_DM_PATH=/dev/mapper/$LUKS_DM_NAME
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LUKS_KEY_FILE="/root/.luks.key"
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# LOCK_FILE
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LOCK_FILE=/var/lock/bkp-disk.lock
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MAIL_FROM=root@localhost
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MAIL_TO=root@localhost
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function usage() {
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echo "Usage : backup-usb [-d] [-c] [-l /path/to/log.file] [-u /dev/sdX]"
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echo " -d Debug mode"
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echo " -c Clean mode"
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echo " -l Log file path"
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echo " -u Path of USB disk device"
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}
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DEBUG=0
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CLEAN_MODE=0
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LOG=""
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DEVICE=""
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while getopts ":dcl:u:h" opt
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do
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case "$opt" in
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d)
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DEBUG=1
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;;
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c)
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CLEAN_MODE=1
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;;
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l)
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LOG="$OPTARG"
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;;
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u)
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DEVICE="$OPTARG"
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;;
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h)
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usage
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exit 0
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;;
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*)
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echo "Invalid '$opt' parameter"
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echo
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usage
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exit 1
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esac
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done
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#
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# Functions
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#
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function is_mount () {
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mount | grep -c "$1 "
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}
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function send_mail () {
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echo "$2"|mail -s "$1" -r "$MAIL_FROM" "$MAIL_TO"
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}
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function debug () {
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d=`date "+%Y-%m-%d - %Hh%Mm%Ss"`
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if [ -z "$LOG" ]
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then
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echo "$d -- [$1] $2"
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else
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echo "$d -- [$1] $2" >> $LOG 2>&1
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fi
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if [ "$1" == "HALT" ]
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then
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beep -f 300 -l 2000
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fi
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if [ "$3" == "send" ]
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then
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if [ -z "$LOG" ]
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then
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echo "$d -- [INFO] Send mail"
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else
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echo "$d -- [INFO] Send mail" >> $LOG 2>&1
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fi
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send_mail "[$1] Export sauvegardes Backup PC" "$2"
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fi
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}
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function backup() {
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debug INFO Start send
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if [ -f $LOCK_FILE ]
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then
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debug ERREUR "Le fichier de lock est toujours présent ($LOCK_FILE)." send
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debug HALT
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exit 1
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fi
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debug INFO "Dépot du fichier de lock."
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echo $$ > $LOCK_FILE
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beep -f 1000 -r 2 -l 100
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if [ -e $LUKS_DM_PATH ]
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then
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debug ERREUR "Le device $LUKS_DM_NAME existe deja ($LUKS_DM_PATH)." send
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debug HALT
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exit 1
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fi
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debug INFO "Ouverture du disque LUKS ..."
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cryptsetup luksOpen $DEVICE $LUKS_DM_NAME --key-file $LUKS_KEY_FILE
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RES=$?
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if [ $RES -ne 0 ]
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then
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debug ERREUR "La commande 'cryptsetup luksOpen' n'a pas retourne 0. Code retour : $RES" send
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debug HALT
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exit $RES
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else
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debug INFO "Fait."
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fi
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if [ `is_mount $LUKS_DM_PATH` -eq 1 ]
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then
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debug ERREUR "Le disque est déjà monté" send
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debug HALT
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exit 1
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fi
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debug INFO "Montage du disque."
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mount $LUKS_DM_PATH $MNT_DIR
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if [ `is_mount $LUKS_DM_PATH` -eq 0 ]
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then
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debug ERREUR "Problème durant le montage du disque dur." send
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debug HALT
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exit 1
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fi
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debug INFO "Disque monté."
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debug INFO "Montage de BackupPC FS..."
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$BACKUPPCFS_PATH $BACKUPPCFS_MNT
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RES=$?
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if [ $RES -ne 0 ]
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then
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debug ERREUR "Problème durant le montage de BackupPC FS. Code retour : $RES"
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umount $BACKUPPCFS_MNT
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umount $LUKS_DM_PATH
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cryptsetup close $LUKS_DM_NAME
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debug HALT
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exit 1
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else
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debug INFO "Fait."
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fi
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sleep 2
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debug INFO "Export des sauvegardes ..."
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for dir in $BACKUPPCFS_MNT/*
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do
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2017-04-11 17:29:20 +02:00
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[ ! -d "$dir" -o ! -L "$dir/latest" ] && continue
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2017-02-28 15:13:49 +01:00
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host="$( basename "$dir")"
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2017-04-11 17:29:20 +02:00
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latest=$( readlink -e "$dir/latest" )
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[ ! -d "$latest" ] && debug ERREUR "Problème durant la résolution du lien de la dernière sauvegarde du serveur $host" && continue
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debug INFO "Export de la dernière sauvegarde du serveur $host (sauvegarde n° $( basename $latest )) ..."
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2017-04-11 17:30:44 +02:00
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rsync -a --delete --numeric-ids --exclude='/dev/*' --exclude='/lib/udev/devices/*' --exclude='PaxHeader' --exclude='WinSxS/*' "$latest/" "$MNT_DIR/$host/"
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2017-02-28 15:13:49 +01:00
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RES=$?
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if [ $RES -ne 0 ]
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then
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debug ERREUR "Problème durant l'export de la sauvegarde du serveur $host (Code retour : $RES)" send
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else
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debug INFO "Fait."
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fi
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done
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debug INFO "Export des sauvegardes terminé"
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debug INFO "Démontage de BackupPC FS..."
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umount $BACKUPPCFS_MNT
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RES=$?
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if [ $RES -ne 0 ]
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then
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debug ERREUR "Problème durant le démontage de BackupPC FS (Code retour : $RES)" send
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else
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debug INFO "Fait."
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fi
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debug INFO "Démontage du disque"
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umount $LUKS_DM_PATH
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if [ `is_mount $LUKS_DM_PATH` -eq 1 ]
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then
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debug ERREUR "Problème durant le démontage du disque dur." send
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debug HALT
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exit 1
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else
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debug INFO "Fait."
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fi
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debug INFO "Fermeture du disque LUKS..."
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cryptsetup close $LUKS_DM_NAME
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RES=$?
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if [ $RES -ne 0 ]
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then
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debug ERREUR "Problème durant la fermeture du disque LUKS" send
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debug HALT
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exit 1
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fi
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debug INFO "Suppression du fichier de lock"
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rm -f $LOCK_FILE
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debug INFO "Stop" send
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beep -f 1000 -l 2000
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}
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function clean () {
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umount $MNT_DIR
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cryptsetup close $LUKS_DM_NAME
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umount $BACKUPPCFS_MNT
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rm -f $LOCK_FILE
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}
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# Manage clean mode
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if [ "$CLEAN_MODE" == "1" ]
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then
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clean
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exit 0
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fi
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# Else : we are in backup mode
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if [ -n "$LOG" ]
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then
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# Close STDOUT file descriptor
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exec 1<&-
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# Close STDERR FD
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exec 2<&-
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# Open STDOUT as $LOG file for read and write.
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exec 1<>$LOG
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# Redirect STDERR to STDOUT
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exec 2>&1
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fi
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if [ -z "$DEVICE" ]
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then
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debug FATAL "Il faut specifié le disque USB avec le paramètre -u !"
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usage
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exit 1
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fi
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backup
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