mirror of https://schlomp.space/tastytea/hashboot
Adding support for BIOS. Mark I
teldra
parent
74e7b939ee
commit
ae1570378b
46
hashboot
46
hashboot
|
|
@ -3,7 +3,8 @@
|
|||
#Exit codes: 0 = success, 1 = checksum mbr mismatch, 2 = checksum /boot mismatch,
|
||||
#3 = checksum mbr/boot mismatch, 4 = not root, 5 = no hasher found, 6 = wrong usage,
|
||||
#7 = write error, 8 = dd error, 9 = file not found
|
||||
|
||||
#10 = bios mismatch, 11 == mbr&bios mismatch, 12 = files&bios mismatch
|
||||
#13 = mbr&bios&files mismatch
|
||||
###################################################################################
|
||||
# "THE HUG-WARE LICENSE" (Revision 1): #
|
||||
# xo <xo@rotce.de> and tastytea <tastytea@tastytea.de> wrote these files. As long #
|
||||
|
|
@ -11,7 +12,7 @@
|
|||
# meet some day, and you think this stuff is worth it, you can give us a hug. #
|
||||
###################################################################################
|
||||
|
||||
VERSION="0.8.3"
|
||||
VERSION="0.9.0"
|
||||
PATH="/bin:/usr/bin:/sbin:/usr/sbin:${PATH}"
|
||||
|
||||
DIGEST_FILE="/var/lib/hashboot.digest"
|
||||
|
|
@ -20,12 +21,14 @@ LOG_FILE="/tmp/hashboot.log"
|
|||
MBR_DEVICE="/dev/sda"
|
||||
MBR_SIZE=1024
|
||||
MBR_TMP="/tmp/mbr"
|
||||
BIOS_TMP="/tmp/bios"
|
||||
BACKUP_FILE="/var/cache/boot-backup.tar"
|
||||
HASHER=""
|
||||
BOOT_MOUNTED=0
|
||||
CONFIG_FILE="/etc/hashboot.cfg"
|
||||
COUNTER=0
|
||||
DD_STATUS="none"
|
||||
PROGRAMMER="no" #standard change enables bios mode
|
||||
|
||||
#Umount /boot if we mounted it, exit with given exit code
|
||||
die ()
|
||||
|
|
@ -45,6 +48,12 @@ write_hashes ()
|
|||
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
|
||||
#Write bios to ${1}
|
||||
#if we set an programmer chip in config, read bios and write it to digestfile.
|
||||
if [ ! ${PROGRAMMER} == "no" ]; then
|
||||
flashrom --programmer ${PROGRAMMER} -r ${BIOS_TMP} > /dev/null 2>&1
|
||||
${HASHER} ${BIOS_TMP} >> ${1}
|
||||
fi
|
||||
#Write hashes of all regular files to ${1}
|
||||
${HASHER} ${MBR_TMP} >> ${1}
|
||||
find /boot -type f -exec ${HASHER} --binary {} >> ${1} +
|
||||
|
|
@ -89,11 +98,27 @@ else
|
|||
[ -z "${BACKUP_FILE}" ] && BACKUP_FILE="/var/cache/boot-backup.tar"
|
||||
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 [ ${b} == "y"]; then
|
||||
if which flashrom; then
|
||||
flashrom
|
||||
echo -n "Which programmer? (eg. internal)"
|
||||
read p
|
||||
echo "PROGRAMMER=${p}" >> ${CONFIG_FILE}
|
||||
else
|
||||
echo "No flashrom found. You need to install it."
|
||||
echo "PROGRAMMER=${PROGRAMMER}" >> ${CONFIG_FILE}
|
||||
fi
|
||||
else
|
||||
echo "PROGRAMMER=no" >> ${CONFIG_FILE}
|
||||
fi
|
||||
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}" >> ${CONFIG_FILE}
|
||||
echo "PROGRAMMER=${PROGRAMMER}" >> ${CONFIG_FILE}
|
||||
fi
|
||||
fi
|
||||
|
||||
|
|
@ -144,7 +169,7 @@ then
|
|||
else
|
||||
for file in $(diff ${DIGEST_FILE} ${DIGEST_FILE_TMP} | grep -v '#hashboot' | grep '<' | cut -d'*' -f2 | sed 's/\ /\\ /g' );
|
||||
do
|
||||
#lösche_aus_tar
|
||||
#delete from tar
|
||||
tar --delete -v -P -f $BACKUP_FILE $file
|
||||
done
|
||||
for file in $(diff ${DIGEST_FILE} ${DIGEST_FILE_TMP} | grep -v '#hashboot' | grep '>' | cut -d'*' -f2 | sed 's/\ /\\ /g' );
|
||||
|
|
@ -156,7 +181,7 @@ then
|
|||
mv ${DIGEST_FILE_TMP} ${DIGEST_FILE}
|
||||
else
|
||||
write_hashes $DIGEST_FILE
|
||||
tar -cpPf ${BACKUP_FILE} ${MBR_TMP} /boot ${DIGEST_FILE} || die 7 "Error writing ${BACKUP_FILE}"
|
||||
tar -cpPf ${BACKUP_FILE} ${BIOS} ${MBR_TMP} /boot ${DIGEST_FILE} || die 7 "Error writing ${BACKUP_FILE}"
|
||||
echo "Backup written to ${BACKUP_FILE}"
|
||||
fi
|
||||
|
||||
|
|
@ -165,17 +190,28 @@ then
|
|||
[ -f ${DIGEST_FILE} ] || die 9 "No digestfile"
|
||||
HASHER=$(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
|
||||
flashrom --programmer ${PROGRAMMER} -r ${BIOS_TMP} > /dev/null 2>&1
|
||||
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
|
||||
if ! grep -v ${MBR_TMP} ${DIGEST_FILE} | ${HASHER} --check --warn --quiet --strict | tee -a ${LOG_FILE}
|
||||
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
|
||||
#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 $COUNTER
|
||||
fi
|
||||
fi
|
||||
|
||||
elif [ "${1}" == "recover" ]
|
||||
then
|
||||
echo "Restoring files from backup... (type yes or no for each file)"
|
||||
|
|
|
|||
Loading…
Reference in New Issue