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#!/bin/sh
# Get the mtd device number (mtdX)
findmtd() {
m="$(grep -xl "$1" /sys/class/mtd/*/name)"
m="${m%/name}"
m="${m##*/}"
echo "${m}"
}
# Get the ubi device number (ubiX_Y)
findubi() {
u="$(grep -xl "$1" /sys/class/ubi/ubi?/subsystem/ubi*/name)"
u="${u%/name}"
u="${u##*/}"
echo "${u}"
}
# Get the mount information
is_mounted() {
grep -q "$1" /proc/mounts
return $?
}
# Attach the pnor mtd device to ubi.
attach_ubi() {
pnormtd="$(findmtd pnor)"
pnor="${pnormtd#mtd}"
pnordev="/dev/mtd${pnor}"
if [ -d "/sys/class/ubi/ubi${pnor}" ]; then
# Already attached
return 0
fi
ubiattach /dev/ubi_ctrl -m "${pnor}" -d "${pnor}"
rc=$?
if [ ${rc} -ne 0 ]; then
# Check the pnor mtd device is formatted as ubi by reading the first 3 byes,
# which should be the ascii chars 'UBI'
magic="$(hexdump -C -n 3 ${pnordev})"
if [[ "${magic}" =~ "UBI" ]]; then
# Device already formatted as ubi, ubiattach failed for some other reason
return ${rc}
else
# Format device as ubi
echo "Starting ubiformat ${pnordev}"
ubiformat "${pnordev}" -y -q
# Retry the ubiattach
ubiattach /dev/ubi_ctrl -m "${pnor}" -d "${pnor}"
fi
fi
}
mount_squashfs() {
pnormtd="$(findmtd pnor)"
ubidev="/dev/ubi${pnormtd#mtd}"
mountdir="/media/${name}"
vol="$(findubi "${name}")"
img="/tmp/images/${version}/pnor.xz.squashfs"
filesize="$(ls -sh $img | awk -F " " {'print $1'})"
if is_mounted "${name}"; then
echo "${name} is already mounted."
return 0
fi
if [ ! -z "${vol}" ]; then
ubirmvol "${ubidev}" -N "${name}"
fi
if [ ! -d "${mountdir}" ]; then
mkdir "${mountdir}"
fi
# Set size of read-only partition equal to pnor.xz.squashfs
ubimkvol "${ubidev}" -N "${name}" -s "${filesize}"KiB --type=static
vol="$(findubi "${name}")"
if [ $? != 0 ]; then
echo "Unable to create RO volume!"
return 1
fi
ubidevid="${vol#ubi}"
ubiupdatevol "/dev/ubi${ubidevid}" "${img}"
if [ $? != 0 ]; then
echo "Unable to update RO volume!"
return 1
fi
ubiblock --create "/dev/ubi${ubidevid}"
if [ $? != 0 ]; then
echo "Unable to create UBI block for RO volume!"
return 1
fi
mount -t squashfs -o ro "/dev/ubiblock${ubidevid}" "${mountdir}"
if [ $? != 0 ]; then
echo "Unable to mount RO volume!"
return 1
fi
}
mount_ubi() {
pnormtd="$(findmtd pnor)"
pnor="${pnormtd#mtd}"
ubidev="/dev/ubi${pnor}"
pnordev="/dev/mtd${pnor}"
if [[ "${name}" == "pnor-patch" ]]; then
if [[ "$(fw_printenv fieldmode 2>/dev/null)" == "fieldmode=true" ]]; then
return 0
fi
if [[ ! "$(hexdump -C -n 3 ${pnordev})" =~ "UBI" ]]; then
return 0
fi
mountdir="/usr/local/share/pnor"
else
mountdir="/media/${name}"
fi
if [[ "${name}" == "pnor-prsv" ]]; then
size="2MiB"
else
size="16MiB"
fi
if [ ! -d "${mountdir}" ]; then
mkdir -p "${mountdir}"
fi
vol="$(findubi "${name}")"
if [ -z "${vol}" ]; then
ubimkvol "${ubidev}" -N "${name}" -s "${size}"
fi
if ! is_mounted "${name}"; then
mountdev="ubi${pnor}:${name}"
mount -t ubifs "${mountdev}" "${mountdir}"
fi
}
umount_ubi() {
pnormtd="$(findmtd pnor)"
pnor="${pnormtd#mtd}"
ubidev="/dev/ubi${pnor}"
mountdir="/media/${name}"
if is_mounted "${name}"; then
umount "${mountdir}"
fi
vol="$(findubi "${name}")"
if [ -n "${vol}" ]; then
ubirmvol "${ubidev}" -N "${name}"
fi
if [ -d "${mountdir}" ]; then
rm -r "${mountdir}"
fi
}
remount_ubi() {
pnormtd="$(findmtd pnor)"
pnor="${pnormtd#mtd}"
pnordev="/dev/mtd${pnor}"
# Re-Attach the pnor mtd device to ubi
if [[ $(hexdump -C -n 3 ${pnordev}) =~ "UBI" ]]; then
ubiattach /dev/ubi_ctrl -m "${pnor}" -d "${pnor}"
else
# Device not formatted as ubi.
return 0
fi
# Get information on all ubi volumes
ubinfo=$(ubinfo -d ${pnor})
presentVolumes=${ubinfo##*:}
IFS=', ' read -r -a array <<< "$presentVolumes"
for element in ${array[@]};
do
elementProperties=$(ubinfo -d $pnor -n $element)
# Get ubi volume name by getting rid of additional properties
name=${elementProperties#*Name:}
name="${name%Character*}"
name="$(echo -e "${name}" | tr -d '[:space:]')"
if [[ ${name} == pnor-prsv ]] || [[ ${name} == pnor-rw* ]] || [[ ${name} == pnor-ro* ]]; then
mountdir="/media/${name}"
if [ ! -d "${mountdir}" ]; then
mkdir -p "${mountdir}"
fi
if [[ ${name} == pnor-ro* ]]
then
ubiblock --create /dev/ubi${pnor}_${element}
mount -t squashfs -o ro "/dev/ubiblock${pnor}_${element}" "${mountdir}"
else
mount -t ubifs "ubi${pnor}:${name}" "${mountdir}"
fi
fi
done
}
update_symlinks() {
PNOR_ACTIVE_PATH="/var/lib/phosphor-software-manager/pnor/"
PNOR_RO_ACTIVE_PATH="/var/lib/phosphor-software-manager/pnor/ro"
PNOR_RO_PREFIX="/media/pnor-ro-"
PNOR_RW_ACTIVE_PATH="/var/lib/phosphor-software-manager/pnor/rw"
PNOR_RW_PREFIX="/media/pnor-rw-"
PNOR_PRSV_ACTIVE_PATH="/var/lib/phosphor-software-manager/pnor/prsv"
PNOR_PRSV="/media/pnor-prsv"
PERSISTENCE_PATH="/var/lib/obmc/openpower-pnor-code-mgmt/"
PNOR_PATCH_LOCATION="/usr/local/share/pnor/"
# Get a list of all active PNOR versions
data="$(ls -d ${PNOR_RO_PREFIX}*)"
IFS=$'\n' array=(${data})
currentVersion=""
lowestPriority=255
for element in ${array[@]}; do
#Remove the PNOR_RO_PREFIX from the path to get version ID.
versionId="${element#${PNOR_RO_PREFIX}}"
# Get the priority of active versions from persistence files.
if [[ -f "${PERSISTENCE_PATH}${versionId}" ]]; then
data="$(grep -r "priority" ${PERSISTENCE_PATH}${versionId})"
priority="${data: -1}"
if [[ priority -le lowestPriority ]]; then
lowestPriority=${priority}
currentVersion=${versionId}
fi
fi
done
# Return if no active version found
if [ -z $currentVersion ]; then
return 0;
fi
if [ ! -d "${PNOR_ACTIVE_PATH}" ]; then
mkdir -p "${PNOR_ACTIVE_PATH}"
fi
# If the RW or RO active links doesn't point to the version with
# lowest priority, then remove the symlink and create new ones.
if [[ $(readlink -f "${PNOR_RO_ACTIVE_PATH}") != ${PNOR_RO_PREFIX}${currentVersion} ]]; then
rm -f ${PNOR_RO_ACTIVE_PATH}
rm -rf ${PNOR_PATCH_LOCATION}*
ln -sfv ${PNOR_RO_PREFIX}${currentVersion} ${PNOR_RO_ACTIVE_PATH}
fi
if [[ $(readlink -f "${PNOR_RW_ACTIVE_PATH}") != ${PNOR_RW_PREFIX}${currentVersion} ]]; then
rm -f ${PNOR_RW_ACTIVE_PATH}
ln -sfv ${PNOR_RW_PREFIX}${currentVersion} ${PNOR_RW_ACTIVE_PATH}
fi
if [[ ! -h ${PNOR_PRSV_ACTIVE_PATH} ]]; then
ln -sfv ${PNOR_PRSV} ${PNOR_PRSV_ACTIVE_PATH}
fi
}
clear_ubi() {
mountdir="/media/${name}"
if is_mounted "${name}"; then
rm -rf $mountdir/..?* $mountdir/.[!.]* $mountdir/*
fi
}
ubi_cleanup() {
# When ubi_cleanup is run, it expects one or no active version.
activeVersion=$(busctl --list --no-pager tree \
org.open_power.Software.Host.Updater | \
grep /xyz/openbmc_project/software/ | tail -c 9)
if [[ -z "$activeVersion" ]]; then
vols=$(ubinfo -a | grep -e "pnor-ro-" -e "pnor-rw-" | cut -c 14-)
vols=(${vols})
else
vols=$(ubinfo -a | grep -e "pnor-ro-" -e "pnor-rw-" | \
grep -v "$activeVersion" | cut -c 14-)
vols=(${vols})
fi
for (( index=0; index<${#vols[@]}; index++ )); do
name=${vols[index]}
umount_ubi
done
}
clear_volatile() {
service=$(mapper get-service /org/open_power/control/volatile)
clearVolatileEnabled=$(busctl get-property $service /org/open_power/control/volatile xyz.openbmc_project.Object.Enable Enabled)
if [[ "$clearVolatileEnabled" != "b true" ]]; then
return 0
fi
PNOR_TOC_FILE="pnor.toc"
PNOR_RO_ACTIVE_PATH="/var/lib/phosphor-software-manager/pnor/ro/"
PNOR_RW_ACTIVE_PATH="/var/lib/phosphor-software-manager/pnor/rw/"
PNOR_PRSV_ACTIVE_PATH="/var/lib/phosphor-software-manager/pnor/prsv/"
# toc partition string format:
# partition27=HB_VOLATILE,0x02ba9000,0x02bae000,00,ECC,VOLATILE,READWRITE
tocFilePath="${PNOR_RO_ACTIVE_PATH}${PNOR_TOC_FILE}"
volatiles=($(grep VOLATILE "${tocFilePath}" | grep -Eo '^partition([0-9]+)=([A-Za-z0-9_]+)'))
for (( index=0; index<${#volatiles[@]}; index++ )); do
volatileName="$(echo ${volatiles[${index}]} | awk -F '=' '{print $2}')"
rwVolatile="${PNOR_RW_ACTIVE_PATH}${volatileName}"
if [ -f "${rwVolatile}" ]; then
echo "Clear $rwVolatile"
rm "${rwVolatile}"
fi
prsvVolatile="${PNOR_PRSV_ACTIVE_PATH}${volatileName}"
if [ -f "${prsvVolatile}" ]; then
echo "Clear $prsvVolatile"
rm "${prsvVolatile}"
fi
done
# Always reset the sensor after clearing
busctl set-property $service /org/open_power/control/volatile xyz.openbmc_project.Object.Enable Enabled b false
}
case "$1" in
ubiattach)
attach_ubi
;;
squashfsmount)
name="$2"
version="$3"
mount_squashfs
;;
ubimount)
name="$2"
mount_ubi
;;
ubiumount)
name="$2"
umount_ubi
;;
ubiremount)
remount_ubi
;;
updatesymlinks)
update_symlinks
;;
ubiclear)
name="$2"
clear_ubi
;;
ubicleanup)
ubi_cleanup
;;
clearvolatile)
clear_volatile
;;
*)
echo "Invalid argument"
exit 1
;;
esac
rc=$?
if [ ${rc} -ne 0 ]; then
echo "$0: error ${rc}"
exit ${rc}
fi
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