[PATCH v2 1/3] lib/uuid.c: restore support of system partition type for ESP
Patrice CHOTARD
patrice.chotard at foss.st.com
Tue May 27 14:51:28 CEST 2025
On 5/23/25 11:11, Patrick Delaunay wrote:
> Add support of optional shortname for parameter 'type' of gpt
> command (limited by UUID_STR_LEN) and a separate 'description'
> for UID format "%pUs" used in 'part list' output.
>
> When 'description' is absent in list_guid[], the optional
> shortname is used as fallback.
>
> Many partition types for EFI have no shortcut yet, but only
> description as they are only used to display information.
>
> This patch also restores the "system" as short name for EFI
> System Partition (ESP).
>
> Fixes: d54e1004b8b1 ("lib/uuid.c: use unique name for PARTITION_SYSTEM_GUID")
> Tested-by: Patrice Chotard <patrice.chotard at foss.st.com>
> Signed-off-by: Patrick Delaunay <patrick.delaunay at foss.st.com>
> ---
>
> Changes in v2:
> - change 'string' to 'type' in struct for list_guid[]
> - clarify the usage of struct field 'type' and 'description' in
> comment and in commit message
> - use 'type' for EFI_XXX description as these string have
> no space and size is lower than 36 characters.
> - update after V1 review
>
> lib/uuid.c | 158 ++++++++++++++++++++++++++++-------------------------
> 1 file changed, 85 insertions(+), 73 deletions(-)
>
> diff --git a/lib/uuid.c b/lib/uuid.c
> index 6abbcf27b1f3..ddecbb44656c 100644
> --- a/lib/uuid.c
> +++ b/lib/uuid.c
> @@ -62,184 +62,193 @@ int uuid_str_valid(const char *uuid)
> return 1;
> }
>
> +/*
> + * Array of string (short and long) for known GUID of GPT partition type
> + * at least one string must be present, @type or @description
> + *
> + * @type : short name for the parameter 'type' of gpt command (max size UUID_STR_LEN = 36,
> + * no space), also used as fallback description when the next field is absent
> + * @description : long description associated to type GUID, used for %pUs
> + * @guid : known type GUID value
> + */
> static const struct {
> - const char *string;
> + const char *type;
> + const char *description;
> efi_guid_t guid;
> } list_guid[] = {
> #ifndef USE_HOSTCC
> -#if defined(CONFIG_PARTITION_TYPE_GUID) || defined(CONFIG_CMD_EFIDEBUG) || \
> - defined(CONFIG_EFI)
> - {"EFI System Partition", PARTITION_SYSTEM_GUID},
> -#endif
> -#ifdef CONFIG_PARTITION_TYPE_GUID
> - {"mbr", LEGACY_MBR_PARTITION_GUID},
> - {"msft", PARTITION_MSFT_RESERVED_GUID},
> - {"data", PARTITION_BASIC_DATA_GUID},
> - {"linux", PARTITION_LINUX_FILE_SYSTEM_DATA_GUID},
> - {"raid", PARTITION_LINUX_RAID_GUID},
> - {"swap", PARTITION_LINUX_SWAP_GUID},
> - {"lvm", PARTITION_LINUX_LVM_GUID},
> - {"u-boot-env", PARTITION_U_BOOT_ENVIRONMENT},
> - {"cros-kern", PARTITION_CROS_KERNEL},
> - {"cros-root", PARTITION_CROS_ROOT},
> - {"cros-fw", PARTITION_CROS_FIRMWARE},
> - {"cros-rsrv", PARTITION_CROS_RESERVED},
> -#endif
> +#if CONFIG_IS_ENABLED(EFI_PARTITION)
> + {"mbr", NULL, LEGACY_MBR_PARTITION_GUID},
> + {"msft", NULL, PARTITION_MSFT_RESERVED_GUID},
> + {"data", NULL, PARTITION_BASIC_DATA_GUID},
> + {"linux", NULL, PARTITION_LINUX_FILE_SYSTEM_DATA_GUID},
> + {"raid", NULL, PARTITION_LINUX_RAID_GUID},
> + {"swap", NULL, PARTITION_LINUX_SWAP_GUID},
> + {"lvm", NULL, PARTITION_LINUX_LVM_GUID},
> + {"u-boot-env", NULL, PARTITION_U_BOOT_ENVIRONMENT},
> + {"cros-kern", NULL, PARTITION_CROS_KERNEL},
> + {"cros-root", NULL, PARTITION_CROS_ROOT},
> + {"cros-fw", NULL, PARTITION_CROS_FIRMWARE},
> + {"cros-rsrv", NULL, PARTITION_CROS_RESERVED},
> #if defined(CONFIG_CMD_EFIDEBUG) || defined(CONFIG_EFI)
> {
> - "Device Path",
> + "system", "EFI System Partition",
> + PARTITION_SYSTEM_GUID,
> + },
> + {
> + NULL, "Device Path",
> EFI_DEVICE_PATH_PROTOCOL_GUID,
> },
> {
> - "Device Path To Text",
> + NULL, "Device Path To Text",
> EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID,
> },
> {
> - "Device Path Utilities",
> + NULL, "Device Path Utilities",
> EFI_DEVICE_PATH_UTILITIES_PROTOCOL_GUID,
> },
> {
> - "Unicode Collation 2",
> + NULL, "Unicode Collation 2",
> EFI_UNICODE_COLLATION_PROTOCOL2_GUID,
> },
> {
> - "Driver Binding",
> + NULL, "Driver Binding",
> EFI_DRIVER_BINDING_PROTOCOL_GUID,
> },
> {
> - "Simple Text Input",
> + NULL, "Simple Text Input",
> EFI_SIMPLE_TEXT_INPUT_PROTOCOL_GUID,
> },
> {
> - "Simple Text Input Ex",
> + NULL, "Simple Text Input Ex",
> EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL_GUID,
> },
> {
> - "Simple Text Output",
> + NULL, "Simple Text Output",
> EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL_GUID,
> },
> {
> - "Block IO",
> + NULL, "Block IO",
> EFI_BLOCK_IO_PROTOCOL_GUID,
> },
> {
> - "Disk IO",
> + NULL, "Disk IO",
> EFI_DISK_IO_PROTOCOL_GUID,
> },
> {
> - "Simple File System",
> + NULL, "Simple File System",
> EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID,
> },
> {
> - "Loaded Image",
> + NULL, "Loaded Image",
> EFI_LOADED_IMAGE_PROTOCOL_GUID,
> },
> {
> - "Loaded Image Device Path",
> + NULL, "Loaded Image Device Path",
> EFI_LOADED_IMAGE_DEVICE_PATH_PROTOCOL_GUID,
> },
> {
> - "Graphics Output",
> + NULL, "Graphics Output",
> EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID,
> },
> {
> - "HII String",
> + NULL, "HII String",
> EFI_HII_STRING_PROTOCOL_GUID,
> },
> {
> - "HII Database",
> + NULL, "HII Database",
> EFI_HII_DATABASE_PROTOCOL_GUID,
> },
> {
> - "HII Config Access",
> + NULL, "HII Config Access",
> EFI_HII_CONFIG_ACCESS_PROTOCOL_GUID,
> },
> {
> - "HII Config Routing",
> + NULL, "HII Config Routing",
> EFI_HII_CONFIG_ROUTING_PROTOCOL_GUID,
> },
> {
> - "Load File",
> + NULL, "Load File",
> EFI_LOAD_FILE_PROTOCOL_GUID,
> },
> {
> - "Load File2",
> + NULL, "Load File2",
> EFI_LOAD_FILE2_PROTOCOL_GUID,
> },
> {
> - "Random Number Generator",
> + NULL, "Random Number Generator",
> EFI_RNG_PROTOCOL_GUID,
> },
> {
> - "Simple Network",
> + NULL, "Simple Network",
> EFI_SIMPLE_NETWORK_PROTOCOL_GUID,
> },
> {
> - "PXE Base Code",
> + NULL, "PXE Base Code",
> EFI_PXE_BASE_CODE_PROTOCOL_GUID,
> },
> {
> - "Device-Tree Fixup",
> + NULL, "Device-Tree Fixup",
> EFI_DT_FIXUP_PROTOCOL_GUID,
> },
> {
> - "TCG2",
> + NULL, "TCG2",
> EFI_TCG2_PROTOCOL_GUID,
> },
> {
> - "Firmware Management",
> + NULL, "Firmware Management",
> EFI_FIRMWARE_MANAGEMENT_PROTOCOL_GUID
> },
> #if IS_ENABLED(CONFIG_EFI_HTTP_PROTOCOL)
> {
> - "HTTP",
> + NULL, "HTTP",
> EFI_HTTP_PROTOCOL_GUID,
> },
> {
> - "HTTP Service Binding",
> + NULL, "HTTP Service Binding",
> EFI_HTTP_SERVICE_BINDING_PROTOCOL_GUID,
> },
> {
> - "IPv4 Config2",
> + NULL, "IPv4 Config2",
> EFI_IP4_CONFIG2_PROTOCOL_GUID,
> },
> #endif
> /* Configuration table GUIDs */
> {
> - "ACPI table",
> + NULL, "ACPI table",
> EFI_ACPI_TABLE_GUID,
> },
> {
> - "EFI System Resource Table",
> + NULL, "EFI System Resource Table",
> EFI_SYSTEM_RESOURCE_TABLE_GUID,
> },
> {
> - "device tree",
> + NULL, "device tree",
> EFI_FDT_GUID,
> },
> {
> - "SMBIOS table",
> + NULL, "SMBIOS table",
> SMBIOS_TABLE_GUID,
> },
> {
> - "SMBIOS3 table",
> + NULL, "SMBIOS3 table",
> SMBIOS3_TABLE_GUID,
> },
> {
> - "Runtime properties",
> + NULL, "Runtime properties",
> EFI_RT_PROPERTIES_TABLE_GUID,
> },
> {
> - "TCG2 Final Events Table",
> + NULL, "TCG2 Final Events Table",
> EFI_TCG2_FINAL_EVENTS_TABLE_GUID,
> },
> {
> - "EFI Conformance Profiles Table",
> + NULL, "EFI Conformance Profiles Table",
> EFI_CONFORMANCE_PROFILES_TABLE_GUID,
> },
> #ifdef CONFIG_EFI_RISCV_BOOT_PROTOCOL
> {
> - "RISC-V Boot",
> + NULL, "RISC-V Boot",
> RISCV_EFI_BOOT_PROTOCOL_GUID,
> },
> #endif
> @@ -247,35 +256,36 @@ static const struct {
> #ifdef CONFIG_CMD_NVEDIT_EFI
> /* signature database */
> {
> - "EFI_GLOBAL_VARIABLE_GUID",
> + "EFI_GLOBAL_VARIABLE_GUID", NULL,
> EFI_GLOBAL_VARIABLE_GUID,
> },
> {
> - "EFI_IMAGE_SECURITY_DATABASE_GUID",
> + "EFI_IMAGE_SECURITY_DATABASE_GUID", NULL,
> EFI_IMAGE_SECURITY_DATABASE_GUID,
> },
> /* certificate types */
> {
> - "EFI_CERT_SHA256_GUID",
> + "EFI_CERT_SHA256_GUID", NULL,
> EFI_CERT_SHA256_GUID,
> },
> {
> - "EFI_CERT_X509_GUID",
> + "EFI_CERT_X509_GUID", NULL,
> EFI_CERT_X509_GUID,
> },
> {
> - "EFI_CERT_TYPE_PKCS7_GUID",
> + "EFI_CERT_TYPE_PKCS7_GUID", NULL,
> EFI_CERT_TYPE_PKCS7_GUID,
> },
> #endif
> #if defined(CONFIG_CMD_EFIDEBUG) || defined(CONFIG_EFI)
> - { "EFI_LZMA_COMPRESSED", EFI_LZMA_COMPRESSED },
> - { "EFI_DXE_SERVICES", EFI_DXE_SERVICES },
> - { "EFI_HOB_LIST", EFI_HOB_LIST },
> - { "EFI_MEMORY_TYPE", EFI_MEMORY_TYPE },
> - { "EFI_MEM_STATUS_CODE_REC", EFI_MEM_STATUS_CODE_REC },
> - { "EFI_GUID_EFI_ACPI1", EFI_GUID_EFI_ACPI1 },
> + { "EFI_LZMA_COMPRESSED", NULL, EFI_LZMA_COMPRESSED },
> + { "EFI_DXE_SERVICES", NULL, EFI_DXE_SERVICES },
> + { "EFI_HOB_LIST", NULL, EFI_HOB_LIST },
> + { "EFI_MEMORY_TYPE", NULL, EFI_MEMORY_TYPE },
> + { "EFI_MEM_STATUS_CODE_REC", NULL, EFI_MEM_STATUS_CODE_REC },
> + { "EFI_GUID_EFI_ACPI1", NULL, EFI_GUID_EFI_ACPI1 },
> #endif
> +#endif /* EFI_PARTITION */
> #endif /* !USE_HOSTCC */
> };
>
> @@ -284,7 +294,8 @@ int uuid_guid_get_bin(const char *guid_str, unsigned char *guid_bin)
> int i;
>
> for (i = 0; i < ARRAY_SIZE(list_guid); i++) {
> - if (!strcmp(list_guid[i].string, guid_str)) {
> + if (list_guid[i].type &&
> + !strcmp(list_guid[i].type, guid_str)) {
> memcpy(guid_bin, &list_guid[i].guid, 16);
> return 0;
> }
> @@ -298,7 +309,9 @@ const char *uuid_guid_get_str(const unsigned char *guid_bin)
>
> for (i = 0; i < ARRAY_SIZE(list_guid); i++) {
> if (!memcmp(list_guid[i].guid.b, guid_bin, 16)) {
> - return list_guid[i].string;
> + if (list_guid[i].description)
> + return list_guid[i].description;
> + return list_guid[i].type;
> }
> }
> return NULL;
> @@ -312,10 +325,9 @@ int uuid_str_to_bin(const char *uuid_str, unsigned char *uuid_bin,
> uint64_t tmp64;
>
> if (!uuid_str_valid(uuid_str)) {
> -#ifdef CONFIG_PARTITION_TYPE_GUID
> - if (!uuid_guid_get_bin(uuid_str, uuid_bin))
> + if (IS_ENABLED(CONFIG_PARTITION_TYPE_GUID) &&
> + !uuid_guid_get_bin(uuid_str, uuid_bin))
> return 0;
> -#endif
> return -EINVAL;
> }
>
Reviewed-by: Patrice Chotard <patrice.chotard at foss.st.com>
Thanks
Patrice
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