73 lines
2.6 KiB
C
73 lines
2.6 KiB
C
/*-
|
|
* Copyright (c) 2017 Netflix, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _EFIVAR_DP_H_
|
|
#define _EFIVAR_DP_H_
|
|
|
|
/*
|
|
* "Linux compatible" efivar-dp.h header. At the moment, it's really a
|
|
* very thin, minimal interface.
|
|
*/
|
|
|
|
/*
|
|
* Generic EFI_DEVICE_PATH, spelled the Linux way. We use this
|
|
* interface to the outside world and type-pun to the EFI EDK2 code
|
|
* we use to implement it.
|
|
*/
|
|
typedef struct {
|
|
uint8_t type;
|
|
uint8_t subtype;
|
|
uint16_t length;
|
|
} __packed efidp_header;
|
|
|
|
/* NB: Linux has shadow types for all dp type */
|
|
|
|
typedef union {
|
|
efidp_header header;
|
|
} efidp_data;
|
|
typedef efidp_data *efidp;
|
|
typedef const efidp_data *const_efidp;
|
|
|
|
/** format a device path into UEFI standard conforming output.
|
|
*
|
|
* NB: FreeBSD's implementation is taken from EDK2, while Linux's
|
|
* was hand-rolled. There may be differences as a result.
|
|
*/
|
|
ssize_t efidp_format_device_path(char *buf, size_t len, const_efidp dp,
|
|
ssize_t max);
|
|
ssize_t efidp_format_device_path_node(char *buf, size_t len, const_efidp dp);
|
|
ssize_t efidp_parse_device_path(char *path, efidp out, size_t max);
|
|
char * efidp_extract_file_path(const_efidp dp);
|
|
|
|
size_t efidp_size(const_efidp);
|
|
|
|
int efivar_device_path_to_unix_path(const_efidp dp, char **dev, char **relpath, char **abspath);
|
|
int efivar_unix_path_to_device_path(const char *path, efidp *dp);
|
|
|
|
#endif /* _EFIVAR_DP_H_ */
|