u-boot/include/uuid.h
Patrick Delaunay bcb41dcaef uuid: add selection by string for known partition type GUID
short strings can be used in type parameter of gpt command
to replace the guid string for the types known by u-boot

      partitions = name=boot,size=0x6bc00,type=data; \
                   name=root,size=0x7538ba00,type=linux;
      gpt write mmc 0 $partitions

and they are also used to display the type of partition
in "part list" command

  Partition Map for MMC device 0  --   Partition Type: EFI

  Part	Start LBA	End LBA		Name
	Attributes
	Type GUID
	Partition GUID
    1	0x00000022	0x0000037f	"boot"
	attrs:	0x0000000000000000
	type:	ebd0a0a2-b9e5-4433-87c0-68b6b72699c7
	type:	data
	guid:	d117f98e-6f2c-d04b-a5b2-331a19f91cb2
    2	0x00000380	0x003a9fdc	"root"
	attrs:	0x0000000000000000
	type:	0fc63daf-8483-4772-8e79-3d69d8477de4
	type:	linux
	guid:	25718777-d0ad-7443-9e60-02cb591c9737

Signed-off-by: Patrick Delaunay <patrick.delaunay73@gmail.com>
2015-11-12 15:58:58 -05:00

45 lines
1.2 KiB
C

/*
* Copyright (C) 2014 Samsung Electronics
* Przemyslaw Marczak <p.marczak@samsung.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __UUID_H__
#define __UUID_H__
/* This is structure is in big-endian */
struct uuid {
unsigned int time_low;
unsigned short time_mid;
unsigned short time_hi_and_version;
unsigned char clock_seq_hi_and_reserved;
unsigned char clock_seq_low;
unsigned char node[6];
} __packed;
enum {
UUID_STR_FORMAT_STD,
UUID_STR_FORMAT_GUID
};
#define UUID_STR_LEN 36
#define UUID_BIN_LEN sizeof(struct uuid)
#define UUID_VERSION_MASK 0xf000
#define UUID_VERSION_SHIFT 12
#define UUID_VERSION 0x4
#define UUID_VARIANT_MASK 0xc0
#define UUID_VARIANT_SHIFT 7
#define UUID_VARIANT 0x1
int uuid_str_valid(const char *uuid);
int uuid_str_to_bin(char *uuid_str, unsigned char *uuid_bin, int str_format);
void uuid_bin_to_str(unsigned char *uuid_bin, char *uuid_str, int str_format);
#ifdef CONFIG_PARTITION_TYPE_GUID
int uuid_guid_get_bin(const char *guid_str, unsigned char *guid_bin);
int uuid_guid_get_str(unsigned char *guid_bin, char *guid_str);
#endif
void gen_rand_uuid(unsigned char *uuid_bin);
void gen_rand_uuid_str(char *uuid_str, int str_format);
#endif