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-rw-r--r--include/qemu/uuid.h59
1 files changed, 59 insertions, 0 deletions
diff --git a/include/qemu/uuid.h b/include/qemu/uuid.h
new file mode 100644
index 0000000000..bc0601e65b
--- /dev/null
+++ b/include/qemu/uuid.h
@@ -0,0 +1,59 @@
+/*
+ *  QEMU UUID functions
+ *
+ *  Copyright 2016 Red Hat, Inc.
+ *
+ *  Authors:
+ *   Fam Zheng <famz@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ */
+
+#ifndef QEMU_UUID_H
+#define QEMU_UUID_H
+
+#include "qemu-common.h"
+
+/* Version 4 UUID (pseudo random numbers), RFC4122 4.4. */
+
+typedef struct {
+    union {
+        unsigned char data[16];
+        struct {
+            /* Generated in BE endian, can be swapped with qemu_uuid_bswap. */
+            uint32_t time_low;
+            uint16_t time_mid;
+            uint16_t time_high_and_version;
+            uint8_t  clock_seq_and_reserved;
+            uint8_t  clock_seq_low;
+            uint8_t  node[6];
+        } fields;
+    };
+} QemuUUID;
+
+#define UUID_FMT "%02hhx%02hhx%02hhx%02hhx-" \
+                 "%02hhx%02hhx-%02hhx%02hhx-" \
+                 "%02hhx%02hhx-" \
+                 "%02hhx%02hhx%02hhx%02hhx%02hhx%02hhx"
+
+#define UUID_FMT_LEN 36
+
+#define UUID_NONE "00000000-0000-0000-0000-000000000000"
+
+void qemu_uuid_generate(QemuUUID *out);
+
+int qemu_uuid_is_null(const QemuUUID *uu);
+
+void qemu_uuid_unparse(const QemuUUID *uuid, char *out);
+
+char *qemu_uuid_unparse_strdup(const QemuUUID *uuid);
+
+int qemu_uuid_parse(const char *str, uint8_t *uuid);
+
+void qemu_uuid_bswap(QemuUUID *uuid);
+
+#endif