diff options
Diffstat (limited to 'include/efi_variable.h')
| -rw-r--r-- | include/efi_variable.h | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/include/efi_variable.h b/include/efi_variable.h index bc5985cfdb6..2c629e4dca9 100644 --- a/include/efi_variable.h +++ b/include/efi_variable.h @@ -10,6 +10,16 @@ #define EFI_VARIABLE_READ_ONLY BIT(31) +enum efi_auth_var_type { + EFI_AUTH_VAR_NONE = 0, + EFI_AUTH_VAR_PK, + EFI_AUTH_VAR_KEK, + EFI_AUTH_VAR_DB, + EFI_AUTH_VAR_DBX, + EFI_AUTH_VAR_DBT, + EFI_AUTH_VAR_DBR, +}; + /** * efi_get_variable() - retrieve value of a UEFI variable * @@ -83,6 +93,10 @@ efi_status_t efi_query_variable_info_int(u32 attributes, #define EFI_VAR_BUF_SIZE 0x4000 +/* + * This constant identifies the file format for storing UEFI variables in + * struct efi_var_file. + */ #define EFI_VAR_FILE_MAGIC 0x0161566966456255 /* UbEfiVa, version 1 */ /** @@ -106,7 +120,7 @@ struct efi_var_entry { * struct efi_var_file - file for storing UEFI variables * * @reserved: unused, may be overwritten by memory probing - * @magic: identifies file format + * @magic: identifies file format, takes value %EFI_VAR_FILE_MAGIC * @length: length including header * @crc32: CRC32 without header * @var: variables @@ -129,6 +143,14 @@ struct efi_var_file { efi_status_t efi_var_to_file(void); /** + * efi_var_restore() - restore EFI variables from buffer + * + * @buf: buffer + * Return: status code + */ +efi_status_t efi_var_restore(struct efi_var_file *buf); + +/** * efi_var_from_file() - read variables from file * * File ubootefi.var is read from the EFI system partitions and the variables @@ -195,4 +217,20 @@ efi_status_t efi_var_mem_ins(u16 *variable_name, */ u64 efi_var_mem_free(void); +/** + * efi_init_secure_state - initialize secure boot state + * + * Return: status code + */ +efi_status_t efi_init_secure_state(void); + +/** + * efi_auth_var_get_type() - convert variable name and guid to enum + * + * @name: name of UEFI variable + * @guid: guid of UEFI variable + * Return: identifier for authentication related variables + */ +enum efi_auth_var_type efi_auth_var_get_type(u16 *name, const efi_guid_t *guid); + #endif |