| #!/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 |