lib/efi_loader/efi_variable.c

3  * UEFI runtime variable services
28  * efi_variable_authenticate - authenticate a variable
29  * @variable:	Variable name in u16
30  * @vendor:	Guid of variable
32  * @data:	Pointer to variable's value
34  * @env_attr:	Attributes that an existing variable holds
35  * @time:	signed time that an existing variable holds
40  * On success, @data and @data_size will be replaced with variable's
41  * actual data, excluding authentication data, and its size, and variable's
47 static efi_status_t efi_variable_authenticate(const u16 *variable,
115 	efi_image_region_add(regs, (uint8_t *)variable,
116 			     (uint8_t *)variable
117 				+ u16_strlen(variable) * sizeof(u16), 1);
127 	/* variable's signature list */
137 		EFI_PRINT("Parsing variable's signature failed\n");
142 	var_type = efi_auth_var_get_type(variable, vendor);
178 			EFI_PRINT("Verifying variable's signature failed\n");
197 static efi_status_t efi_variable_authenticate(const u16 *variable,
227  * @variable_name:	name of the variable
229  * @attributes:		attributes of the variable
230  * @data_size:		size of the buffer with the variable value
231  * @data:		buffer with the variable value
288 	/* check if a variable exists */
323 		 * EFI_VARIABLE_APPEND_WRITE to non-existent variable is accepted
324 		 * and new variable is created in EDK II reference implementation.
328 			/* Trying to delete a non-existent variable. */
342 	/* authenticate a variable */
374 		 * variable exists.
453  *					selected variable types
455  *					selected variable types
456  * @maximum_variable_size:		maximum size of a variable of the
482  * @variable_name:	name of the variable
484  * @attributes:		attributes of the variable
485  * @data_size:		size of the buffer with the variable value
486  * @data:		buffer with the variable value
516 	/* check if a variable exists */
574 	/* Switch variable services functions to runtime version */
585  * efi_init_variables() - initialize variable services
604 			log_err("Invalid EFI variable seed\n");