mirror of https://schlomp.space/tastytea/hashboot
tastytea
parent
db4669df68
commit
5b02e0e994
111
hashboot
111
hashboot
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@ -12,7 +12,7 @@
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# meet some day, and you think this stuff is worth it, you can give us a hug. #
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# meet some day, and you think this stuff is worth it, you can give us a hug. #
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###################################################################################
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###################################################################################
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VERSION="0.9.1"
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VERSION="0.9.2"
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PATH="/bin:/usr/bin:/sbin:/usr/sbin:${PATH}"
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PATH="/bin:/usr/bin:/sbin:/usr/sbin:${PATH}"
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DIGEST_FILE="/var/lib/hashboot.digest"
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DIGEST_FILE="/var/lib/hashboot.digest"
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@ -53,23 +53,23 @@ write_hashes ()
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echo "#hashboot ${VERSION} - Algorithm: $(basename ${HASHER})" > ${1}
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echo "#hashboot ${VERSION} - Algorithm: $(basename ${HASHER})" > ${1}
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if [ $((${CKMODES} & 001)) != 0 ]; then
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if [ $((${CKMODES} & 001)) != 0 ]; then
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#copy mbr to file
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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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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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#Write hash of MBR to ${1}
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${HASHER} ${MBR_TMP} >> ${1}
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${HASHER} ${MBR_TMP} >> ${1}
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fi
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fi
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if [ $((${CKMODES} & 010)) != 0 ]; then
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if [ $((${CKMODES} & 010)) != 0 ]; then
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#Write hashes of all regular files to ${1}
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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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find /boot -type f -exec ${HASHER} --binary {} >> ${1} +
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fi
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fi
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if [ $((${CKMODES} & 100)) != 0 ]; then
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if [ $((${CKMODES} & 100)) != 0 ]; then
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#if we set an programmer chip in config
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#if we set an programmer chip in config
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if [ ! ${PROGRAMMER} == "no" ]; then
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if [ ! ${PROGRAMMER} == "no" ]; then
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#read bios to file
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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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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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#and write hashes of bios files to ${1}
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${HASHER} ${BIOS_TMP} >> ${1}
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${HASHER} ${BIOS_TMP} >> ${1}
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fi
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fi
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fi
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fi
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}
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}
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@ -90,7 +90,7 @@ fi
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# Debian < 8 check
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# Debian < 8 check
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if which lsb_release > /dev/null 2>&1 && [ "$(lsb_release -si)" == "Debian" ] && [ $(lsb_release -sr | cut -d'.' -f1) -lt 8 ]
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if which lsb_release > /dev/null 2>&1 && [ "$(lsb_release -si)" == "Debian" ] && [ $(lsb_release -sr | cut -d'.' -f1) -lt 8 ]
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then
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then
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DD_STATUS="noxfer"
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DD_STATUS="noxfer"
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fi
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fi
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#Look for config file and set ${MBR_DEVICE}.
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#Look for config file and set ${MBR_DEVICE}.
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@ -153,25 +153,25 @@ if [ "${2}" > "1" ]; then
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fi
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fi
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if [ $((${CKMODES} & 001)) != 0 ]; then
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if [ $((${CKMODES} & 001)) != 0 ]; then
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# Find out where the first partition starts and set ${MBR_SIZE} in KiB
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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 $8}' )
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sectorsize=$(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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if [ "${sectorsize}" == "=" ] # Older versions of util-linux
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then
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then
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sectorsize=$(LC_ALL=C fdisk -l ${MBR_DEVICE} | grep '^Units' | awk '{print $9}' )
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sectorsize=$(LC_ALL=C fdisk -l ${MBR_DEVICE} | grep '^Units' | awk '{print $9}' )
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fi
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fi
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startsector=$(LC_ALL=C fdisk -l ${MBR_DEVICE} | grep -A1 'Device' | tail -n1 | awk '{print $2}' )
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startsector=$(LC_ALL=C fdisk -l ${MBR_DEVICE} | grep -A1 'Device' | tail -n1 | awk '{print $2}' )
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if [ "${startsector}" == "*" ] # If partition is marked as boot, read next field
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if [ "${startsector}" == "*" ] # If partition is marked as boot, read next field
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then
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then
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startsector=$(LC_ALL=C fdisk -l ${MBR_DEVICE} | grep -A1 'Device' | tail -n1 | awk '{print $3}' )
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startsector=$(LC_ALL=C fdisk -l ${MBR_DEVICE} | grep -A1 'Device' | tail -n1 | awk '{print $3}' )
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fi
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fi
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MBR_SIZE=$(expr ${sectorsize} \* ${startsector} / 1024)
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MBR_SIZE=$(expr ${sectorsize} \* ${startsector} / 1024)
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if [ ${?} != 0 ]
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if [ ${?} != 0 ]
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then
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then
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echo "Something went wrong. Most likely your partition table is corrupt." >&2
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echo "Something went wrong. Most likely your partition table is corrupt." >&2
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die 1 "You have to recover the MBR manually by copying the mbr from ${BACKUP_FILE}"
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die 1 "You have to recover the MBR manually by copying the mbr from ${BACKUP_FILE}"
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fi
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fi
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fi
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fi
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if [ "${1}" == "index" ]
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if [ "${1}" == "index" ]
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@ -222,32 +222,37 @@ then
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[ -f ${DIGEST_FILE} ] || die 9 "No digestfile"
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[ -f ${DIGEST_FILE} ] || die 9 "No digestfile"
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HASHER=$(head -n1 ${DIGEST_FILE} | awk '{print $5}')
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HASHER=$(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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dd if=${MBR_DEVICE} of=${MBR_TMP} bs=${MBR_SIZE}K count=1 status=${DD_STATUS} || die 8
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if ! grep ${MBR_TMP} ${DIGEST_FILE} | ${HASHER} --check --warn --quiet --strict | tee ${LOG_FILE}
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grep ${MBR_TMP} ${DIGEST_FILE} | ${HASHER} --check --warn --quiet --strict | tee ${LOG_FILE}
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then
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if [ ${PIPESTATUS[1]} -ne 0 ]
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echo " !! TIME TO PANIK: MBR WAS MODIFIED !!"
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then
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COUNTER=$((COUNTER + 1))
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echo " !! TIME TO PANIK: MBR WAS MODIFIED !!"
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fi
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COUNTER=$((COUNTER + 1))
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fi
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fi
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fi
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if [ $((${CKMODES} & 010)) != 0 ]; then
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if [ $((${CKMODES} & 010)) != 0 ]; then
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if ! grep -v ${MBR_TMP} ${DIGEST_FILE} | grep -v ${BIOS_TMP} | ${HASHER} --check --warn --quiet --strict | tee -a ${LOG_FILE}
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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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then
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if [ ${PIPESTATUS[1]} -ne 0 ]
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echo " !! TIME TO PANIK: AT LEAST 1 FILE WAS MODIFIED !!"
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then
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COUNTER=$((COUNTER + 2))
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echo " !! TIME TO PANIK: AT LEAST 1 FILE WAS MODIFIED !!"
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die $COUNTER
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COUNTER=$((COUNTER + 2))
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fi
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fi
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fi
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fi
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if [ $((${CKMODES} & 100)) != 0 ]; then
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if [ $((${CKMODES} & 100)) != 0 ]; then
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flashrom --programmer ${PROGRAMMER} -r ${BIOS_TMP} > /dev/null 2>&1
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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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#if we set an programmer chip in config, find line with hash for bios and compare. if smthg wrong, panic
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if [ ! ${PROGRAMMER} == "no" ]; then
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if [ ! ${PROGRAMMER} == "no" ]; then
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if ! grep ${BIOS_TMP} ${DIGEST_FILE} | ${HASHER} --check --warn --quiet --strict | tee -a ${LOG_FILE}
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grep ${BIOS_TMP} ${DIGEST_FILE} | ${HASHER} --check --warn --quiet --strict | tee -a ${LOG_FILE}
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then
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if [ ${PIPESTATUS[1]} -ne 0 ]
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echo " !! TIME TO PANIK: BIOS WAS MODIFIED !!"
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then
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COUNTER=$((COUNTER + 10))
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echo " !! TIME TO PANIK: BIOS WAS MODIFIED !!"
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die $COUNTER
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COUNTER=$((COUNTER + 10))
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fi
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fi
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fi
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fi
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fi
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if [ ${COUNTER} -gt 0 ]; then
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die ${COUNTER}
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fi
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fi
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elif [ "${1}" == "recover" ]
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elif [ "${1}" == "recover" ]
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then
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then
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