mirror of
https://schlomp.space/tastytea/hashboot
synced 2024-11-16 14:37:06 +01:00
bitmask
This commit is contained in:
teldra
parent
391983a659
commit
b1a00d8a4e
103
hashboot
103
hashboot
@ -12,7 +12,7 @@
|
||||
# meet some day, and you think this stuff is worth it, you can give us a hug. #
|
||||
###################################################################################
|
||||
|
||||
VERSION="0.9.0"
|
||||
VERSION="0.9.1"
|
||||
PATH="/bin:/usr/bin:/sbin:/usr/sbin:${PATH}"
|
||||
|
||||
DIGEST_FILE="/var/lib/hashboot.digest"
|
||||
@ -29,9 +29,11 @@ CONFIG_FILE="/etc/hashboot.cfg"
|
||||
COUNTER=0
|
||||
DD_STATUS="none"
|
||||
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"
|
||||
|
||||
#bitmask:
|
||||
# 001=mbr
|
||||
# 010=files
|
||||
# 100=bios
|
||||
CKMODES=011
|
||||
|
||||
#Umount /boot if we mounted it, exit with given exit code
|
||||
die ()
|
||||
@ -50,29 +52,30 @@ write_hashes ()
|
||||
#Write header to ${1}
|
||||
echo "#hashboot ${VERSION} - Algorithm: $(basename ${HASHER})" > ${1}
|
||||
|
||||
case $test in
|
||||
1|4|5|7)
|
||||
if [ $((${CKMODES} & 001)) != 0 ]; then
|
||||
#copy mbr to file
|
||||
dd if=${MBR_DEVICE} of=${MBR_TMP} bs=${MBR_SIZE}K count=1 status=${DD_STATUS} || die 8
|
||||
#Write hash of MBR to ${1}
|
||||
${HASHER} ${MBR_TMP} >> ${1} ;; esac
|
||||
case $test in
|
||||
3|5|6|7)
|
||||
${HASHER} ${MBR_TMP} >> ${1}
|
||||
fi
|
||||
if [ $((${CKMODES} & 010)) != 0 ]; then
|
||||
#Write hashes of all regular files to ${1}
|
||||
find /boot -type f -exec ${HASHER} --binary {} >> ${1} +
|
||||
fi
|
||||
if [ $((${CKMODES} & 100)) != 0 ]; then
|
||||
#if we set an programmer chip in config
|
||||
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
|
||||
fi
|
||||
fi
|
||||
}
|
||||
|
||||
|
||||
#If we're not root: exit
|
||||
if [ ${UID} -ne 0 ]
|
||||
if [ ${UID} != "0" ]
|
||||
then
|
||||
die 4 "You have to be root"
|
||||
fi
|
||||
@ -111,11 +114,14 @@ else
|
||||
echo "#Where the Backup files are stored" >> ${CONFIG_FILE}
|
||||
echo "BACKUP_FILE=${BACKUP_FILE}" >> ${CONFIG_FILE}
|
||||
echo -n "Include BIOS check? (y/n)"
|
||||
read b
|
||||
if [ ${b} == "y"]; then
|
||||
read prompt
|
||||
while [[ ! $prompt == "y" || $prompt == "Y" || $prompt == "n" || $prompt == "N" ]]; do
|
||||
read prompt
|
||||
done
|
||||
if [ "${prompt}" == "y" ]; then
|
||||
if which flashrom; then
|
||||
flashrom
|
||||
echo -n "Which programmer? (eg. internal)"
|
||||
echo -n "Which programmer? (eg. internal) "
|
||||
read p
|
||||
echo "PROGRAMMER=${p}" >> ${CONFIG_FILE}
|
||||
else
|
||||
@ -125,18 +131,28 @@ else
|
||||
else
|
||||
echo "PROGRAMMER=no" >> ${CONFIG_FILE}
|
||||
fi
|
||||
echo "What do we check?"
|
||||
echo "001=mbr"
|
||||
echo "010=files"
|
||||
echo "100=bios"
|
||||
echo "eg. 101 for mbr and bios: "
|
||||
read CKMODES
|
||||
echo "CKMODES=$CKMODES" >> ${CONFIG_FILE}
|
||||
else
|
||||
echo "#Device with the MBR on it" > ${CONFIG_FILE}
|
||||
echo "MBR_DEVICE=${MBR_DEVICE}" >> ${CONFIG_FILE}
|
||||
echo "#Where the Backup files are stored" >> ${CONFIG_FILE}
|
||||
echo "BACKUP_FILE=${BACKUP_FILE}" >> ${CONFIG_FILE}
|
||||
echo "test=5" >> ${CONFIG_FILE}
|
||||
echo "CKMODES=$CKMODES" >> ${CONFIG_FILE}
|
||||
echo "PROGRAMMER=${PROGRAMMER}" >> ${CONFIG_FILE}
|
||||
fi
|
||||
fi
|
||||
|
||||
case $test in
|
||||
1|4|5|7)
|
||||
if [ "${2}" > "1" ]; then
|
||||
CKMODES=${2}
|
||||
fi
|
||||
|
||||
if [ $((${CKMODES} & 001)) != 0 ]; then
|
||||
# Find out where the first partition starts and set ${MBR_SIZE} in KiB
|
||||
sectorsize=$(LC_ALL=C fdisk -l ${MBR_DEVICE} | grep '^Units' | awk '{print $8}' )
|
||||
if [ "${sectorsize}" == "=" ] # Older versions of util-linux
|
||||
@ -156,7 +172,7 @@ case $test in
|
||||
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 ${BACKUP_FILE}"
|
||||
fi
|
||||
;; esac
|
||||
fi
|
||||
|
||||
if [ "${1}" == "index" ]
|
||||
then
|
||||
@ -205,37 +221,34 @@ elif [ "${1}" == "check" ]
|
||||
then
|
||||
[ -f ${DIGEST_FILE} ] || die 9 "No digestfile"
|
||||
HASHER=$(head -n1 ${DIGEST_FILE} | awk '{print $5}')
|
||||
case $test in
|
||||
1|4|5|7)
|
||||
if [ $((${CKMODES} & 001)) != 0 ]; then
|
||||
dd if=${MBR_DEVICE} of=${MBR_TMP} bs=${MBR_SIZE}K count=1 status=${DD_STATUS} || die 8
|
||||
if ! grep ${MBR_TMP} ${DIGEST_FILE} | ${HASHER} --check --warn --quiet --strict | tee ${LOG_FILE}
|
||||
then
|
||||
if ! grep ${MBR_TMP} ${DIGEST_FILE} | ${HASHER} --check --warn --quiet --strict | tee ${LOG_FILE}
|
||||
then
|
||||
echo " !! TIME TO PANIK: MBR WAS MODIFIED !!"
|
||||
COUNTER=$((COUNTER + 1))
|
||||
fi;; esac
|
||||
|
||||
case $test in
|
||||
3|5|6|7)
|
||||
flashrom --programmer ${PROGRAMMER} -r ${BIOS_TMP} > /dev/null 2>&1
|
||||
#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 grep ${BIOS_TMP} ${DIGEST_FILE} | ${HASHER} --check --warn --quiet --strict | tee -a ${LOG_FILE}
|
||||
then
|
||||
echo " !! TIME TO PANIK: BIOS WAS MODIFIED !!"
|
||||
COUNTER=$((COUNTER + 10))
|
||||
die $COUNTER
|
||||
fi
|
||||
fi ;; esac
|
||||
case $test in
|
||||
2|4|6|7)
|
||||
fi
|
||||
fi
|
||||
if [ $((${CKMODES} & 010)) != 0 ]; then
|
||||
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
|
||||
|
||||
|
||||
fi
|
||||
fi
|
||||
if [ $((${CKMODES} & 100)) != 0 ]; then
|
||||
flashrom --programmer ${PROGRAMMER} -r ${BIOS_TMP} > /dev/null 2>&1
|
||||
#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 ! grep ${BIOS_TMP} ${DIGEST_FILE} | ${HASHER} --check --warn --quiet --strict | tee -a ${LOG_FILE}
|
||||
then
|
||||
echo " !! TIME TO PANIK: BIOS WAS MODIFIED !!"
|
||||
COUNTER=$((COUNTER + 10))
|
||||
die $COUNTER
|
||||
fi
|
||||
fi
|
||||
fi
|
||||
elif [ "${1}" == "recover" ]
|
||||
then
|
||||
echo "Restoring files from backup... (type yes or no for each file)"
|
||||
|
||||
Loading…
Reference in New Issue
Block a user