diff options
Diffstat (limited to 'include/efi_variable.h')
| -rw-r--r-- | include/efi_variable.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/include/efi_variable.h b/include/efi_variable.h index 2c629e4dca..60491cb640 100644 --- a/include/efi_variable.h +++ b/include/efi_variable.h @@ -143,6 +143,22 @@ struct efi_var_file { efi_status_t efi_var_to_file(void); /** + * efi_var_collect() - collect variables in buffer + * + * A buffer is allocated and filled with variables in a format ready to be + * written to disk. + * + * @bufp: pointer to pointer of buffer with collected variables + * @lenp: pointer to length of buffer + * @check_attr_mask: bitmask with required attributes of variables to be collected. + * variables are only collected if all of the required + * attributes are set. + * Return: status code + */ +efi_status_t __maybe_unused efi_var_collect(struct efi_var_file **bufp, loff_t *lenp, + u32 check_attr_mask); + +/** * efi_var_restore() - restore EFI variables from buffer * * @buf: buffer @@ -233,4 +249,62 @@ efi_status_t efi_init_secure_state(void); */ enum efi_auth_var_type efi_auth_var_get_type(u16 *name, const efi_guid_t *guid); +/** + * efi_get_next_variable_name_mem() - Runtime common code across efi variable + * implementations for GetNextVariable() + * from the cached memory copy + * @variable_name_size: size of variable_name buffer in byte + * @variable_name: name of uefi variable's name in u16 + * @vendor: vendor's guid + * + * Return: status code + */ +efi_status_t __efi_runtime +efi_get_next_variable_name_mem(efi_uintn_t *variable_name_size, u16 *variable_name, + efi_guid_t *vendor); +/** + * efi_get_variable_mem() - Runtime common code across efi variable + * implementations for GetVariable() from + * the cached memory copy + * + * @variable_name: name of the variable + * @vendor: vendor GUID + * @attributes: attributes of the variable + * @data_size: size of the buffer to which the variable value is copied + * @data: buffer to which the variable value is copied + * @timep: authentication time (seconds since start of epoch) + * Return: status code + + */ +efi_status_t __efi_runtime +efi_get_variable_mem(u16 *variable_name, const efi_guid_t *vendor, u32 *attributes, + efi_uintn_t *data_size, void *data, u64 *timep); + +/** + * efi_get_variable_runtime() - runtime implementation of GetVariable() + * + * @variable_name: name of the variable + * @guid: vendor GUID + * @attributes: attributes of the variable + * @data_size: size of the buffer to which the variable value is copied + * @data: buffer to which the variable value is copied + * Return: status code + */ +efi_status_t __efi_runtime EFIAPI +efi_get_variable_runtime(u16 *variable_name, const efi_guid_t *guid, + u32 *attributes, efi_uintn_t *data_size, void *data); + +/** + * efi_get_next_variable_name_runtime() - runtime implementation of + * GetNextVariable() + * + * @variable_name_size: size of variable_name buffer in byte + * @variable_name: name of uefi variable's name in u16 + * @guid: vendor's guid + * Return: status code + */ +efi_status_t __efi_runtime EFIAPI +efi_get_next_variable_name_runtime(efi_uintn_t *variable_name_size, + u16 *variable_name, efi_guid_t *guid); + #endif |