blob: 26bdc21c476082a93e3c77cea6dc5fb08a124ffe [file] [log] [blame]
#!/bin/sh
bios_reset_if_needed() {
resetval=$(fw_printenv -n rwreset 2>/dev/nell)
if [ "$resetval" = "0" ] || [ "$resetval" = "1" ]; then
varstore="/media/hostfw/reset-gpio-val"
if [ -f "$varstore" ]; then
if [ "$resetval" != "$(cat $varstore)" ]; then
if busctl call org.open_power.Software.Host.Updater /xyz/openbmc_project/software xyz.openbmc_project.Common.FactoryReset Reset; then
echo "$resetval" > "$varstore"
fi
fi
else
echo "$resetval" > "$varstore"
fi
fi
}
mmc_init() {
base_dir="/media/hostfw"
ro_dir="${base_dir}/running-ro"
running_dir="${base_dir}/running"
prsv_dir="${base_dir}/prsv"
staging_dir="${base_dir}/staging"
nvram_dir="${base_dir}/nvram"
if [ ! -d "${ro_dir}" ]; then
mkdir -p "${ro_dir}"
fi
if [ ! -d "${running_dir}" ]; then
mkdir -p ${running_dir}
fi
if [ ! -d "${prsv_dir}" ]; then
mkdir -p "${prsv_dir}"
fi
if [ ! -d "${staging_dir}" ]; then
mkdir -p "${staging_dir}"
fi
if [ ! -d "${nvram_dir}" ]; then
mkdir -p "${nvram_dir}"
fi
# Mount the image that corresponds to the boot label as read-only to be used
# to populate the running directory.
boot_label="$(fw_printenv -n bootside)"
if ! grep -q "${ro_dir}" /proc/mounts; then
mount ${base_dir}/hostfw-"${boot_label}" ${ro_dir} -o ro
fi
# Determine if the running dir contains the running version
running_label=""
running_label_file="${running_dir}/partlabel"
if [ -f "${running_label_file}" ]; then
running_label=$(cat ${running_label_file})
fi
if [ "${running_label}" != "${boot_label}" ]; then
# Copy off the preserved partitions
# A line in the pnor.toc (81e00994.lid) looks like this:
# partition05=SECBOOT,0x00381000,0x003a5000,00,ECC,PRESERVED
rm -f ${prsv_dir}/*
if [ -f "${ro_dir}/81e00994.lid" ]; then
prsvs=$(grep PRESERVED "${ro_dir}/81e00994.lid")
for prsv in ${prsvs}; do
prsv=${prsv##partition*=}
prsv=$(echo "${prsv}" | cut -d "," -f 1)
if [ -L "${running_dir}/${prsv}" ]; then
# Preserve the symlink target file
prsv="$(readlink "${running_dir}/${prsv}")"
if [ -f "${running_dir}/${prsv}" ] && [ -f "${ro_dir}/${prsv}" ]; then
runsize="$(stat -c '%s' "${running_dir}/${prsv}")"
rosize="$(stat -c '%s' "${ro_dir}/${prsv}")"
if [ "$runsize" != "$rosize" ]; then
# Partition size may have changed or became corrupted
# So it will not be copied to the preserved directory
# Log PEL to indicate such
busctl call xyz.openbmc_project.Logging \
/xyz/openbmc_project/logging \
xyz.openbmc_project.Logging.Create Create "ssa{ss}" \
xyz.openbmc_project.Software.Version.Error.HostFile \
xyz.openbmc_project.Logging.Entry.Level.Error 3 "FILE_NAME" \
"${prsv}" "CURRENT_FILE_SIZE" "${runsize}" "EXPECTED_FILE_SIZE" \
"${rosize}"
# Initiate dump
busctl call xyz.openbmc_project.Dump.Manager \
/xyz/openbmc_project/dump/bmc xyz.openbmc_project.Dump.Create \
CreateDump "a{sv}" 0
else
cp -p ${running_dir}/"${prsv}" ${prsv_dir}
fi
fi
fi
done
fi
# Copy lid contents of running image to running dir
rm -f ${running_dir}/*
cp -p ${ro_dir}/*.lid ${running_dir}/
# Restore the preserved partitions. Ignore error, there may be none.
cp -p ${prsv_dir}/* ${running_dir}/ 2>/dev/null || true
rm -f "${prsv_dir:?}/"*
# Clean up the staging dir in case of a failed update
rm -rf "${staging_dir:?}/"*
# Save the label
echo "${boot_label}" > "${running_label_file}"
fi
# Mount alternate dir
if [ "${boot_label}" = "a" ]; then
alternate_label="b"
else
alternate_label="a"
fi
alternate_dir="${base_dir}/alternate"
if [ ! -d "${alternate_dir}" ]; then
mkdir -p ${alternate_dir}
fi
if ! grep -q "${alternate_dir}" /proc/mounts; then
mount ${base_dir}/hostfw-${alternate_label} ${alternate_dir} -o ro
fi
}
mmc_patch() {
# Patching is disabled if field mode is set
if [ "$(fw_printenv fieldmode 2>/dev/null)" = "fieldmode=true" ]; then
return 0
fi
boot_label="$(fw_printenv -n bootside)"
if [ "${boot_label}" = "a" ]; then
alternate_label="b"
else
alternate_label="a"
fi
# Create patch directories
patch_dir="/media/hostfw/patch-"
running_patch_dir="${patch_dir}${boot_label}"
if [ ! -d "${running_patch_dir}" ]; then
mkdir -p "${running_patch_dir}"
fi
alternate_patch_dir="${patch_dir}${alternate_label}"
if [ ! -d "${alternate_patch_dir}" ]; then
mkdir -p "${alternate_patch_dir}"
fi
# Create patch symlinks
symlink_base="/usr/local/share"
if [ ! -d "${symlink_base}" ]; then
mkdir -p "${symlink_base}"
fi
hostfw_symlink_base="${symlink_base}/hostfw"
if [ ! -d "${hostfw_symlink_base}" ]; then
mkdir -p "${hostfw_symlink_base}"
fi
if [ "$(readlink -f "${symlink_base}/pnor")" != "${running_patch_dir}" ]; then
ln -s "${running_patch_dir}" "${symlink_base}/pnor"
fi
if [ "$(readlink -f "${hostfw_symlink_base}/running")" != "${running_patch_dir}" ]; then
ln -s "${running_patch_dir}" "${hostfw_symlink_base}/running"
fi
if [ "$(readlink -f "${hostfw_symlink_base}/alternate")" != "${alternate_patch_dir}" ]; then
ln -s "${alternate_patch_dir}" "${hostfw_symlink_base}/alternate"
fi
}
case "$1" in
bios-reset-if-needed)
bios_reset_if_needed
;;
mmc-init)
mmc_init
;;
mmc-patch)
mmc_patch
;;
*)
echo "Invalid argument: $1" >&2
exit 1
;;
esac