mirror of https://schlomp.space/tastytea/hashboot
Initial modular
teldra
parent
37a4399293
commit
391983a659
122
hashboot
122
hashboot
|
|
@ -29,6 +29,9 @@ CONFIG_FILE="/etc/hashboot.cfg"
|
||||||
COUNTER=0
|
COUNTER=0
|
||||||
DD_STATUS="none"
|
DD_STATUS="none"
|
||||||
PROGRAMMER="no" #standard change enables bios mode
|
PROGRAMMER="no" #standard change enables bios mode
|
||||||
|
#1=mbr 2=files 3=bios 4=mbr/files 5=mbr/bios 6=files/bios 7=all
|
||||||
|
test="5"
|
||||||
|
|
||||||
|
|
||||||
#Umount /boot if we mounted it, exit with given exit code
|
#Umount /boot if we mounted it, exit with given exit code
|
||||||
die ()
|
die ()
|
||||||
|
|
@ -46,17 +49,26 @@ write_hashes ()
|
||||||
{
|
{
|
||||||
#Write header to ${1}
|
#Write header to ${1}
|
||||||
echo "#hashboot ${VERSION} - Algorithm: $(basename ${HASHER})" > ${1}
|
echo "#hashboot ${VERSION} - Algorithm: $(basename ${HASHER})" > ${1}
|
||||||
#Write MBR of MBR_DEVICE to ${1}
|
|
||||||
dd if=${MBR_DEVICE} of=${MBR_TMP} bs=${MBR_SIZE}K count=1 status=${DD_STATUS} || die 8
|
case $test in
|
||||||
#Write bios to ${1}
|
1|4|5|7)
|
||||||
#if we set an programmer chip in config, read bios and write it to digestfile.
|
#copy mbr to file
|
||||||
if [ ! ${PROGRAMMER} == "no" ]; then
|
dd if=${MBR_DEVICE} of=${MBR_TMP} bs=${MBR_SIZE}K count=1 status=${DD_STATUS} || die 8
|
||||||
flashrom --programmer ${PROGRAMMER} -r ${BIOS_TMP} > /dev/null 2>&1
|
#Write hash of MBR to ${1}
|
||||||
${HASHER} ${BIOS_TMP} >> ${1}
|
${HASHER} ${MBR_TMP} >> ${1} ;; esac
|
||||||
fi
|
case $test in
|
||||||
#Write hashes of all regular files to ${1}
|
3|5|6|7)
|
||||||
${HASHER} ${MBR_TMP} >> ${1}
|
#if we set an programmer chip in config
|
||||||
find /boot -type f -exec ${HASHER} --binary {} >> ${1} +
|
if [ ! ${PROGRAMMER} == "no" ]; then
|
||||||
|
#read bios to file
|
||||||
|
flashrom --programmer ${PROGRAMMER} -r ${BIOS_TMP} > /dev/null 2>&1
|
||||||
|
#and write hashes of bios files to ${1}
|
||||||
|
${HASHER} ${BIOS_TMP} >> ${1}
|
||||||
|
fi ;; esac
|
||||||
|
case $test in
|
||||||
|
2|4|6|7)
|
||||||
|
#Write hashes of all regular files to ${1}
|
||||||
|
find /boot -type f -exec ${HASHER} --binary {} >> ${1} + ;; esac
|
||||||
}
|
}
|
||||||
|
|
||||||
#If we're not root: exit
|
#If we're not root: exit
|
||||||
|
|
@ -118,29 +130,33 @@ else
|
||||||
echo "MBR_DEVICE=${MBR_DEVICE}" >> ${CONFIG_FILE}
|
echo "MBR_DEVICE=${MBR_DEVICE}" >> ${CONFIG_FILE}
|
||||||
echo "#Where the Backup files are stored" >> ${CONFIG_FILE}
|
echo "#Where the Backup files are stored" >> ${CONFIG_FILE}
|
||||||
echo "BACKUP_FILE=${BACKUP_FILE}" >> ${CONFIG_FILE}
|
echo "BACKUP_FILE=${BACKUP_FILE}" >> ${CONFIG_FILE}
|
||||||
|
echo "test=5" >> ${CONFIG_FILE}
|
||||||
echo "PROGRAMMER=${PROGRAMMER}" >> ${CONFIG_FILE}
|
echo "PROGRAMMER=${PROGRAMMER}" >> ${CONFIG_FILE}
|
||||||
fi
|
fi
|
||||||
fi
|
fi
|
||||||
|
|
||||||
# Find out where the first partition starts and set ${MBR_SIZE} in KiB
|
case $test in
|
||||||
sectorsize=$(LC_ALL=C fdisk -l ${MBR_DEVICE} | grep '^Units' | awk '{print $8}' )
|
1|4|5|7)
|
||||||
if [ "${sectorsize}" == "=" ] # Older versions of util-linux
|
# Find out where the first partition starts and set ${MBR_SIZE} in KiB
|
||||||
then
|
sectorsize=$(LC_ALL=C fdisk -l ${MBR_DEVICE} | grep '^Units' | awk '{print $8}' )
|
||||||
sectorsize=$(LC_ALL=C fdisk -l ${MBR_DEVICE} | grep '^Units' | awk '{print $9}' )
|
if [ "${sectorsize}" == "=" ] # Older versions of util-linux
|
||||||
fi
|
then
|
||||||
startsector=$(LC_ALL=C fdisk -l ${MBR_DEVICE} | grep -A1 'Device' | tail -n1 | awk '{print $2}' )
|
sectorsize=$(LC_ALL=C fdisk -l ${MBR_DEVICE} | grep '^Units' | awk '{print $9}' )
|
||||||
if [ "${startsector}" == "*" ] # If partition is marked as boot, read next field
|
fi
|
||||||
then
|
startsector=$(LC_ALL=C fdisk -l ${MBR_DEVICE} | grep -A1 'Device' | tail -n1 | awk '{print $2}' )
|
||||||
startsector=$(LC_ALL=C fdisk -l ${MBR_DEVICE} | grep -A1 'Device' | tail -n1 | awk '{print $3}' )
|
if [ "${startsector}" == "*" ] # If partition is marked as boot, read next field
|
||||||
fi
|
then
|
||||||
|
startsector=$(LC_ALL=C fdisk -l ${MBR_DEVICE} | grep -A1 'Device' | tail -n1 | awk '{print $3}' )
|
||||||
|
fi
|
||||||
|
|
||||||
MBR_SIZE=$(expr ${sectorsize} \* ${startsector} / 1024)
|
MBR_SIZE=$(expr ${sectorsize} \* ${startsector} / 1024)
|
||||||
|
|
||||||
if [ ${?} != 0 ]
|
if [ ${?} != 0 ]
|
||||||
then
|
then
|
||||||
echo "Something went wrong. Most likely your partition table is corrupt." >&2
|
echo "Something went wrong. Most likely your partition table is corrupt." >&2
|
||||||
die 1 "You have to recover the MBR manually by copying the mbr from ${BACKUP_FILE}"
|
die 1 "You have to recover the MBR manually by copying the mbr from ${BACKUP_FILE}"
|
||||||
fi
|
fi
|
||||||
|
;; esac
|
||||||
|
|
||||||
if [ "${1}" == "index" ]
|
if [ "${1}" == "index" ]
|
||||||
then
|
then
|
||||||
|
|
@ -189,28 +205,36 @@ elif [ "${1}" == "check" ]
|
||||||
then
|
then
|
||||||
[ -f ${DIGEST_FILE} ] || die 9 "No digestfile"
|
[ -f ${DIGEST_FILE} ] || die 9 "No digestfile"
|
||||||
HASHER=$(head -n1 ${DIGEST_FILE} | awk '{print $5}')
|
HASHER=$(head -n1 ${DIGEST_FILE} | awk '{print $5}')
|
||||||
dd if=${MBR_DEVICE} of=${MBR_TMP} bs=${MBR_SIZE}K count=1 status=${DD_STATUS} || die 8
|
case $test in
|
||||||
flashrom --programmer ${PROGRAMMER} -r ${BIOS_TMP} > /dev/null 2>&1
|
1|4|5|7)
|
||||||
if ! grep ${MBR_TMP} ${DIGEST_FILE} | ${HASHER} --check --warn --quiet --strict | tee ${LOG_FILE}
|
dd if=${MBR_DEVICE} of=${MBR_TMP} bs=${MBR_SIZE}K count=1 status=${DD_STATUS} || die 8
|
||||||
then
|
if ! grep ${MBR_TMP} ${DIGEST_FILE} | ${HASHER} --check --warn --quiet --strict | tee ${LOG_FILE}
|
||||||
echo " !! TIME TO PANIK: MBR WAS MODIFIED !!"
|
then
|
||||||
COUNTER=$((COUNTER + 1))
|
echo " !! TIME TO PANIK: MBR WAS MODIFIED !!"
|
||||||
fi
|
COUNTER=$((COUNTER + 1))
|
||||||
if ! grep -v ${MBR_TMP} ${DIGEST_FILE} | grep -v ${BIOS_TMP} | ${HASHER} --check --warn --quiet --strict | tee -a ${LOG_FILE}
|
fi;; esac
|
||||||
then
|
|
||||||
echo " !! TIME TO PANIK: AT LEAST 1 FILE WAS MODIFIED !!"
|
case $test in
|
||||||
COUNTER=$((COUNTER + 2))
|
3|5|6|7)
|
||||||
die $COUNTER
|
flashrom --programmer ${PROGRAMMER} -r ${BIOS_TMP} > /dev/null 2>&1
|
||||||
fi
|
#if we set an programmer chip in config, find line with hash for bios and compare. if smthg wrong, panic
|
||||||
#if we set an programmer chip in config, find line with hash for bios and compare. if smthg wrong, panic
|
if [ ! ${PROGRAMMER} == "no" ]; then
|
||||||
if [ ! ${PROGRAMMER} == "no" ]; then
|
if grep ${BIOS_TMP} ${DIGEST_FILE} | ${HASHER} --check --warn --quiet --strict | tee -a ${LOG_FILE}
|
||||||
if grep ${BIOS_TMP} ${DIGEST_FILE} | ${HASHER} --check --warn --quiet --strict | tee -a ${LOG_FILE}
|
then
|
||||||
then
|
echo " !! TIME TO PANIK: BIOS WAS MODIFIED !!"
|
||||||
echo " !! TIME TO PANIK: BIOS WAS MODIFIED !!"
|
COUNTER=$((COUNTER + 10))
|
||||||
COUNTER=$((COUNTER + 10))
|
die $COUNTER
|
||||||
die $COUNTER
|
|
||||||
fi
|
fi
|
||||||
fi
|
fi ;; esac
|
||||||
|
case $test in
|
||||||
|
2|4|6|7)
|
||||||
|
if ! grep -v ${MBR_TMP} ${DIGEST_FILE} | grep -v ${BIOS_TMP} | ${HASHER} --check --warn --quiet --strict | tee -a ${LOG_FILE}
|
||||||
|
then
|
||||||
|
echo " !! TIME TO PANIK: AT LEAST 1 FILE WAS MODIFIED !!"
|
||||||
|
COUNTER=$((COUNTER + 2))
|
||||||
|
die $COUNTER
|
||||||
|
fi ;; esac
|
||||||
|
|
||||||
|
|
||||||
elif [ "${1}" == "recover" ]
|
elif [ "${1}" == "recover" ]
|
||||||
then
|
then
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue