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freebsd/lib/libefivar/efivar-dp.h
Warner Losh 52467047aa Regularize the Netflix copyright
Use recent best practices for Copyright form at the top of
the license:
1. Remove all the All Rights Reserved clauses on our stuff. Where we
   piggybacked others, use a separate line to make things clear.
2. Use "Netflix, Inc." everywhere.
3. Use a single line for the copyright for grep friendliness.
4. Use date ranges in all places for our stuff.

Approved by: Netflix Legal (who gave me the form), adrian@ (pmc files)
2019-02-04 21:28:25 +00:00

72 lines
2.6 KiB
C

/*-
* Copyright (c) 2017 Netflix, Inc.
*
* 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_ */