uuid.h 1.2 KB

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  1. /* SPDX-License-Identifier: GPL-2.0+ */
  2. /*
  3. * Copyright (C) 2014 Samsung Electronics
  4. * Przemyslaw Marczak <p.marczak@samsung.com>
  5. */
  6. #ifndef __UUID_H__
  7. #define __UUID_H__
  8. /* This is structure is in big-endian */
  9. struct uuid {
  10. unsigned int time_low;
  11. unsigned short time_mid;
  12. unsigned short time_hi_and_version;
  13. unsigned char clock_seq_hi_and_reserved;
  14. unsigned char clock_seq_low;
  15. unsigned char node[6];
  16. } __packed;
  17. enum {
  18. UUID_STR_FORMAT_STD,
  19. UUID_STR_FORMAT_GUID
  20. };
  21. #define UUID_STR_LEN 36
  22. #define UUID_BIN_LEN sizeof(struct uuid)
  23. #define UUID_VERSION_MASK 0xf000
  24. #define UUID_VERSION_SHIFT 12
  25. #define UUID_VERSION 0x4
  26. #define UUID_VARIANT_MASK 0xc0
  27. #define UUID_VARIANT_SHIFT 7
  28. #define UUID_VARIANT 0x1
  29. int uuid_str_valid(const char *uuid);
  30. int uuid_str_to_bin(char *uuid_str, unsigned char *uuid_bin, int str_format);
  31. void uuid_bin_to_str(unsigned char *uuid_bin, char *uuid_str, int str_format);
  32. #ifdef CONFIG_PARTITION_TYPE_GUID
  33. int uuid_guid_get_bin(const char *guid_str, unsigned char *guid_bin);
  34. int uuid_guid_get_str(unsigned char *guid_bin, char *guid_str);
  35. #endif
  36. void gen_rand_uuid(unsigned char *uuid_bin);
  37. void gen_rand_uuid_str(char *uuid_str, int str_format);
  38. #endif