Merge branch 'shellcheck-fixes'
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This commit is contained in:
commit
326d4a30b6
GPG Key ID:
CFC39497F1B26E07
78
hashboot
78
hashboot
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@ -12,6 +12,8 @@
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# If we meet some day, and you think this is nice, you can give us a hug. #
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###############################################################################
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# shellcheck disable=SC2181 # ($?)
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VERSION="0.9.14"
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PATH="/bin:/usr/bin:/sbin:/usr/sbin:${PATH}"
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DIGEST_FILE=""
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@ -47,29 +49,31 @@ die ()
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rm -f "${DIGEST_FILE_TMP}" "${MBR_TMP}" "${BIOS_TMP}"
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[ -z "${2}" ] || echo "${2}" >&2
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exit ${1}
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exit "${1}"
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}
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write_hashes ()
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{
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#Write header to ${1}
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echo "#hashboot ${VERSION} - Algorithm: $(basename ${HASHER})" > ${1}
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local file="${1}"
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#Write header to ${file}
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echo "#hashboot ${VERSION} - Algorithm: $(basename ${HASHER})" > "${file}"
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if [ $((${CKMODES} & 001)) -ne 0 ]; then
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if [ $((CKMODES & 001)) -ne 0 ]; then
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#copy mbr to file
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dd if=${MBR_DEVICE} of=${MBR_TMP} bs=${MBR_SIZE}K count=1 status=${DD_STATUS} || die 8
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#Write hash of MBR to ${1}
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${HASHER} ${MBR_TMP} >> ${1}
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#Write hash of MBR to ${file}
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${HASHER} ${MBR_TMP} >> "${file}"
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fi
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if [ $((${CKMODES} & 010)) -ne 0 ]; then
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#Write hashes of all regular files to ${1}
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find /boot -type f -exec ${HASHER} --binary {} >> ${1} +
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if [ $((CKMODES & 010)) -ne 0 ]; then
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#Write hashes of all regular files to ${file}
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# shellcheck disable=SC2227
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find /boot -type f -exec sh -c ${HASHER} --binary "${1}" >> "${file}" _ {} +
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fi
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if [ $((${CKMODES} & 100)) -ne 0 ]; then
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if [ $((CKMODES & 100)) -ne 0 ]; then
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#read bios to file
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flashrom --programmer ${PROGRAMMER} -r ${BIOS_TMP} > /dev/null 2>&1
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#and write hashes of bios files to ${1}
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${HASHER} ${BIOS_TMP} >> ${1}
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#and write hashes of bios files to ${file}
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${HASHER} ${BIOS_TMP} >> "${file}"
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fi
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}
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@ -89,7 +93,9 @@ then
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fi
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# Debian < 8 check
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if which lsb_release > /dev/null 2>&1 && [ "$(lsb_release -si)" == "Debian" ] && [ $(lsb_release -sr | cut -d'.' -f1) -lt 8 ]
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if command -v lsb_release > /dev/null \
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&& [ "$(lsb_release -si)" == "Debian" ] \
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&& [ "$(lsb_release -sr | cut -d'.' -f1)" -lt 8 ]
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then
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DD_STATUS="noxfer"
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fi
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@ -97,9 +103,10 @@ fi
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#Look for config file and set ${MBR_DEVICE}.
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if [ -f ${CONFIG_FILE} ]
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then
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# shellcheck source=/dev/null
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source ${CONFIG_FILE} || die 9 "Error reading config file"
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#compatibility to old cfg format
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if [ ! -z "${BACKUP_FILE}" ]; then
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if [ -n "${BACKUP_FILE}" ]; then
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SAVEDIR="/var/lib/hashboot"
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echo "SAVEDIR=${SAVEDIR}" >> ${CONFIG_FILE}
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mkdir -p ${SAVEDIR}
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@ -132,11 +139,11 @@ else
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echo "010=files"
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echo "100=core-/libreboot bios"
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echo "eg. 101 for mbr and bios: "
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read CKMODES
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read -r CKMODES
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echo "#001=mbr,010=files,100=bios" >> ${CONFIG_FILE}
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echo "CKMODES=$CKMODES" >> ${CONFIG_FILE}
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if [ $((${CKMODES} & 001)) -ne 0 ]; then
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if [ $((CKMODES & 001)) -ne 0 ]; then
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echo -n "Which device contains the MBR? [/dev/sda] "
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read -r MBR_DEVICE
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[ -z "${MBR_DEVICE}" ] && MBR_DEVICE="/dev/sda"
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@ -144,8 +151,8 @@ else
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echo "MBR_DEVICE=${MBR_DEVICE}" >> ${CONFIG_FILE}
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fi
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if [ $((${CKMODES} & 100)) -ne 0 ]; then
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if ! which flashrom; then
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if [ $((CKMODES & 100)) -ne 0 ]; then
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if ! command -v flashrom > /dev/null; then
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echo "You need to have flashrom installed!"
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echo "Currently it is not installed, don't reboot"
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echo "If you need another programmer than internal"
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@ -158,7 +165,7 @@ else
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fi
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fi
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if [ $((${CKMODES} & 001)) -ne 0 ]; then
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if [ $((CKMODES & 001)) -ne 0 ]; then
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# Find out where the first partition starts and set ${MBR_SIZE} in KiB
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sectorsize=$(LC_ALL=C fdisk -l ${MBR_DEVICE} | grep '^Units' | awk '{print $8}' )
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if [ "${sectorsize}" == "=" ] # Older versions of util-linux
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@ -171,7 +178,7 @@ if [ $((${CKMODES} & 001)) -ne 0 ]; then
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startsector=$(LC_ALL=C fdisk -l ${MBR_DEVICE} | grep -A1 'Device' | tail -n1 | awk '{print $3}' )
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fi
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MBR_SIZE=$(expr ${sectorsize} \* ${startsector} / 1024)
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MBR_SIZE=$((sectorsize * startsector / 1024))
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if [ ${?} != 0 ]
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then
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@ -183,10 +190,10 @@ fi
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if [ "${1}" == "index" ]
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then
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#Try different hashers, use the most secure
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HASHER=$(/usr/bin/which sha512sum 2> /dev/null)
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test -z "${HASHER}" && HASHER=$(/usr/bin/which sha384sum 2> /dev/null)
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test -z "${HASHER}" && HASHER=$(/usr/bin/which sha256sum 2> /dev/null)
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test -z "${HASHER}" && HASHER=$(/usr/bin/which sha224sum 2> /dev/null)
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HASHER=$(command -v sha512sum > /dev/null)
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test -z "${HASHER}" && HASHER=$(command -v sha384sum > /dev/null)
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test -z "${HASHER}" && HASHER=$(command -v sha256sum > /dev/null)
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test -z "${HASHER}" && HASHER=$(command -v sha224sum > /dev/null)
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#If we found no hasher: exit
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[ -z "${HASHER}" ] && die 5 "No hash calculator found"
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@ -205,11 +212,11 @@ then
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for file in $(diff ${DIGEST_FILE} ${DIGEST_FILE_TMP} | grep -v '#hashboot' | grep '<' | cut -d'*' -f2 | sed 's/\ /\\ /g' );
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do
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#delete from tar
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tar --delete -v -P -f $BACKUP_FILE $file
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tar --delete -v -P -f ${BACKUP_FILE} "${file}"
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done
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for file in $(diff ${DIGEST_FILE} ${DIGEST_FILE_TMP} | grep -v '#hashboot' | grep '>' | cut -d'*' -f2 | sed 's/\ /\\ /g' );
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do
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tar -r -v -P -f $BACKUP_FILE $file
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tar -r -v -P -f $BACKUP_FILE "${file}"
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done
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fi
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#nur, wenn das updaten des Backups geklappt hat. *im Hinterkopf behalt*
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@ -231,28 +238,28 @@ elif [ "${1}" == "check" ]
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then
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[ -f ${DIGEST_FILE} ] || die 9 "No digestfile"
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HASHER=$(head -n1 ${DIGEST_FILE} | awk '{print $5}')
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if [ $((${CKMODES} & 001)) != 0 ]; then
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if [ $((CKMODES & 001)) != 0 ]; then
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dd if=${MBR_DEVICE} of=${MBR_TMP} bs=${MBR_SIZE}K count=1 status=${DD_STATUS} || die 8
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grep ${MBR_TMP} ${DIGEST_FILE} | ${HASHER} --check --warn --quiet --strict | tee ${LOG_FILE}
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if [ ${PIPESTATUS[2]} -ne 0 ]
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if [ "${PIPESTATUS[2]}" -ne 0 ]
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then
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echo " !! TIME TO PANIK: MBR WAS MODIFIED !!"
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COUNTER=$((COUNTER + 1))
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fi
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fi
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if [ $((${CKMODES} & 010)) -ne 0 ]; then
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if [ $((CKMODES & 010)) -ne 0 ]; then
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grep -v ${MBR_TMP} ${DIGEST_FILE} | grep -v ${BIOS_TMP} | ${HASHER} --check --warn --quiet --strict | tee -a ${LOG_FILE}
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if [ ${PIPESTATUS[2]} -ne 0 ]
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if [ "${PIPESTATUS[2]}" -ne 0 ]
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then
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echo " !! TIME TO PANIK: AT LEAST 1 FILE WAS MODIFIED !!"
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COUNTER=$((COUNTER + 2))
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fi
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fi
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if [ $((${CKMODES} & 100)) -ne 0 ]; then
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if [ $((CKMODES & 100)) -ne 0 ]; then
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flashrom --programmer ${PROGRAMMER} -r ${BIOS_TMP} > /dev/null 2>&1
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#if we set an programmer chip in config, find line with hash for bios and compare. if smthg wrong, panic
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grep ${BIOS_TMP} ${DIGEST_FILE} | ${HASHER} --check --warn --quiet --strict | tee -a ${LOG_FILE}
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if [ ${PIPESTATUS[2]} -ne 0 ]
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if [ "${PIPESTATUS[2]}" -ne 0 ]
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then
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echo " !! TIME TO PANIK: BIOS WAS MODIFIED !!"
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COUNTER=$((COUNTER + 10))
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@ -268,15 +275,16 @@ then
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echo "Restoring files from backup... (type yes or no for each file)"
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#For each failed file: ask if it should be recovered from backup
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# shellcheck disable=2013
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for file in $(cut -d: -f1 ${LOG_FILE})
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do
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tar -xpPvwf ${BACKUP_FILE} ${file}
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[ $? != 0 ] && echo "Error restoring ${file} from backup, continuing" >&2
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tar -xpPvwf ${BACKUP_FILE} "${file}"
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[ ${?} != 0 ] && echo "Error restoring ${file} from backup, continuing" >&2
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#If the MBR is to be recovered, copy to ${MBR_DEVICE}
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if [ "${file}" == ${MBR_TMP} ]
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then
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cp ${MBR_TMP} ${MBR_DEVICE}
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[ $? != 0 ] && echo "Error restoring MBR from backup, continuing" >&2
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[ ${?} != 0 ] && echo "Error restoring MBR from backup, continuing" >&2
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fi
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done
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else
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