+/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2014 Samsung Electronics
* Przemyslaw Marczak <p.marczak@samsung.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __UUID_H__
#define __UUID_H__
-enum {
- UUID_STR_FORMAT_STD,
- UUID_STR_FORMAT_GUID
-};
+#include <linux/bitops.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;
+
+/* Bits of a bitmask specifying the output format for GUIDs */
+#define UUID_STR_FORMAT_STD 0
+#define UUID_STR_FORMAT_GUID BIT(0)
+#define UUID_STR_UPPER_CASE BIT(1)
+
+/* Use UUID_STR_LEN + 1 for string space */
#define UUID_STR_LEN 36
-#define UUID_BIN_LEN 16
+#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);
+int uuid_str_to_bin(const char *uuid_str, unsigned char *uuid_bin,
+ int str_format);
+void uuid_bin_to_str(const unsigned char *uuid_bin, char *uuid_str,
+ int str_format);
+int uuid_guid_get_bin(const char *guid_str, unsigned char *guid_bin);
+const char *uuid_guid_get_str(const unsigned char *guid_bin);
+void gen_rand_uuid(unsigned char *uuid_bin);
+void gen_rand_uuid_str(char *uuid_str, int str_format);
#endif