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@ -178,3 +178,186 @@ disk_root_part() { |
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fi |
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fi |
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echo "${root_part}" |
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echo "${root_part}" |
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} |
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} |
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# Check if supplied argument is valid partuuid device path. |
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# Supports both dos and gpt paths |
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# |
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# $1 - partuuid device path |
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disk_is_valid_partuuid_device() { |
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disk_is_valid_partuuid_gpt_device "$1" || disk_is_valid_partuuid_dos_device "$1" |
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} |
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# Check if supplied argument is valid gpt partuuid device path. |
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# |
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# Example: /dev/disk/by-partuuid/26445670-f37c-408b-be2c-3ef419866620 |
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# |
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# $1 - gpt partuuid device path |
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disk_is_valid_partuuid_gpt_device() { |
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echo "${1}" | grep -qE '^/dev/disk/by-partuuid/([0-9a-f]{8}(-[0-9a-f]{4}){3}-[0-9a-f]{12})$' |
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} |
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# Check if supplied argument is valid dos partuuid device path. |
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# |
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# Example: /dev/disk/by-partuuid/26445670-01 |
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# |
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# $1 - dos partuuid device path |
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disk_is_valid_partuuid_dos_device() { |
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echo "${1}" | grep -qE '^/dev/disk/by-partuuid/[0-9a-f]{8}-[0-9a-f]{2}$' |
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} |
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# Get partuuid from supplied device path. |
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# Supports both dos and gpt paths |
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# |
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# $1 - partuuid device path |
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disk_get_partuuid_from_device() { |
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if ! disk_is_valid_partuuid_device "${1}"; then |
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log_fatal "Invalid partuuid device: '${1}'" |
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fi |
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echo "${1}" | sed "s:/dev/disk/by-partuuid/::" |
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} |
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# Get dos disk identifier from supplied device path. |
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# |
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# $1 - dos compatible partuuid device path |
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disk_get_partuuid_dos_diskid_from_device() { |
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if ! disk_is_valid_partuuid_dos_device "${1}"; then |
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log_fatal "Invalid dos partuuid device: '${1}'" |
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fi |
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partuuid=$(disk_get_partuuid_from_device "${1}") |
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echo "$partuuid" | cut -d- -f1 |
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} |
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# Get dos partuuid number from supplied device path. |
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# |
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# $1 - dos compatible partuuid device path |
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disk_get_partuuid_dos_part_number() { |
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if ! disk_is_valid_partuuid_dos_device "${1}"; then |
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log_fatal "Invalid dos partuuid device: '${1}'" |
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fi |
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partuuid=$(disk_get_partuuid_from_device "${1}") |
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echo "$partuuid" | cut -d- -f2 |
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} |
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# Get correct device path for current configuration. |
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# Unrecognized or unsupported device paths will generate an error |
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# |
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# $1 - partition number to use if fine grained variable not set |
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# $2 - fine grained device part variable name |
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disk_get_part_device() { |
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part="${!2}" |
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if [ "${MENDER_ENABLE_PARTUUID}" == "y" ]; then |
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if ! disk_is_valid_partuuid_device "${part}"; then |
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log_fatal "Invalid partuuid device for ${2}: '${part}'" |
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fi |
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else |
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part="${MENDER_STORAGE_DEVICE_BASE}${1}" |
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fi |
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echo "${part}" |
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} |
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disk_boot_part_device() { |
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disk_get_part_device "${MENDER_BOOT_PART_NUMBER}" "MENDER_BOOT_PART" |
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} |
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disk_data_part_device() { |
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disk_get_part_device "${MENDER_DATA_PART_NUMBER}" "MENDER_DATA_PART" |
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} |
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disk_root_part_a_device() { |
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disk_get_part_device "${MENDER_ROOTFS_PART_A_NUMBER}" "MENDER_ROOTFS_PART_A" |
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} |
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disk_root_part_b_device() { |
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disk_get_part_device "${MENDER_ROOTFS_PART_B_NUMBER}" "MENDER_ROOTFS_PART_B" |
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} |
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# Get device partition number from device path. |
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# Unrecognized or unsupported device paths will generate an error |
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# |
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# $1 - device path |
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disk_get_device_part_number() { |
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dev_part="unknown" |
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case "$1" in |
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/dev/nvme*n*p* ) |
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dev_part=$(echo $1 | cut -dp -f2) |
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;; |
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/dev/mmcblk*p* ) |
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dev_part=$(echo $1 | cut -dp -f2) |
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;; |
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/dev/[sh]d[a-z][1-9]* ) |
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dev_part=${1##*d[a-z]} |
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;; |
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ubi*_* ) |
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dev_part=$(echo $1 | cut -d_ -f2) |
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;; |
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/dev/disk/by-partuuid/* ) |
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if disk_is_valid_partuuid_dos_device "$1";then |
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dev_part=$(disk_get_partuuid_dos_part_number "$1") |
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dev_part=$((16#${dev_part})) |
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else |
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log_fatal "partition number does not exist for GPT partuuid: '$1'" |
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fi |
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;; |
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esac |
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part=$(printf "%d" $dev_part 2>/dev/null) |
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if [ $? = 1 ]; then |
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log_fatal "Could not determine partition number from '${1}'" |
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else |
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echo "$part" |
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fi |
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} |
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# Get device base path without partition number from argument. |
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# Unrecognized or unsupported device paths will generate an error |
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# |
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# $1 - device path |
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disk_get_device_base() { |
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dev_base="" |
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case "$1" in |
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/dev/nvme*n*p* ) |
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dev_base=$(echo $1 | cut -dp -f1) |
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;; |
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/dev/mmcblk*p* ) |
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dev_base=$(echo $1 | cut -dp -f1) |
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;; |
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/dev/[sh]d[a-z][1-9]* ) |
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dev_base=${1%%[1-9]*} |
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;; |
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ubi*_* ) |
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dev_base=$(echo $1 | cut -d_ -f1) |
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;; |
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/dev/disk/by-partuuid/* ) |
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log_fatal "device base does not exist for GPT partuuid: '$1'" |
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;; |
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esac |
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if [ -z "$dev_base" ]; then |
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log_fatal "Could not determine device base from '${1}'" |
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else |
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echo $dev_base |
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fi |
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} |
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# Conditionally redefine partition number/device if fine grained variable set. |
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# |
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# $1 - variable name |
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# $2 - variable value |
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disk_override_partition_variable() { |
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if [ "${MENDER_ENABLE_PARTUUID}" == "y" ]; then |
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if disk_is_valid_partuuid_dos_device "${2}";then |
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eval "${1}"=$(disk_get_device_part_number "${2}") |
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fi |
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else |
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if [ -n "${2}" ];then |
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eval "${1}"=$(disk_get_device_part_number "${2}") |
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MENDER_STORAGE_DEVICE_BASE=$(disk_get_device_base "${2}") |
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fi |
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fi |
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} |
Kristian Amlie
5 years ago
GitHub