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/* $Id: RTUuidCreate-win.cpp $ */
/** @file
* IPRT - UUID, Windows RTUuidCreate implementation.
*/
/*
* Copyright (C) 2006-2019 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#define LOG_GROUP RTLOGGROUP_UUID
#include <iprt/win/windows.h>
#include <iprt/uuid.h>
#include <iprt/assert.h>
#include <iprt/errcore.h>
#include <iprt/rand.h>
#include "internal-r3-win.h"
RTDECL(int) RTUuidCreate(PRTUUID pUuid)
{
/*
* Input validation.
*/
AssertPtrReturn(pUuid, VERR_INVALID_POINTER);
/*
* When using the UuidCreate API shortly after boot on NT 3.1 it typcially
* hangs for a long long time while polling for some service to start.
* What then usually happens next is a failure because it couldn't figure
* out the MAC address of the NIC. So, on NT 3.1 we always use the fallback.
*/
if (g_enmWinVer != kRTWinOSType_NT310)
{
RPC_STATUS rc = UuidCreate((UUID *)pUuid);
if ( rc == RPC_S_OK
|| rc == RPC_S_UUID_LOCAL_ONLY)
return VINF_SUCCESS;
AssertMsg(rc == RPC_S_UUID_NO_ADDRESS, ("UuidCreate -> %u (%#x)\n", rc, rc));
}
/*
* Use generic implementation as fallback (copy of RTUuidCreate-generic.cpp).
*/
RTRandBytes(pUuid, sizeof(*pUuid));
pUuid->Gen.u8ClockSeqHiAndReserved = (pUuid->Gen.u8ClockSeqHiAndReserved & 0x3f) | 0x80;
pUuid->Gen.u16TimeHiAndVersion = (pUuid->Gen.u16TimeHiAndVersion & 0x0fff) | 0x4000;
return VINF_SUCCESS;
}
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