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/* $Id: RTSystemShutdown-win.cpp $ */
/** @file
* IPRT - RTSystemShutdown, Windows.
*/
/*
* Copyright (C) 2012-2019 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 *
*********************************************************************************************************************************/
#include <iprt/system.h>
#include "internal/iprt.h"
#include <iprt/assert.h>
#include <iprt/err.h>
#include <iprt/string.h>
#include <iprt/utf16.h>
#include <iprt/win/windows.h>
RTDECL(int) RTSystemShutdown(RTMSINTERVAL cMsDelay, uint32_t fFlags, const char *pszLogMsg)
{
AssertPtrReturn(pszLogMsg, VERR_INVALID_POINTER);
AssertReturn(!(fFlags & ~RTSYSTEM_SHUTDOWN_VALID_MASK), VERR_INVALID_PARAMETER);
/*
* Before we start, try grant the necessary privileges.
*/
DWORD dwErr;
HANDLE hToken = NULL;
if (OpenThreadToken(GetCurrentThread(), TOKEN_ADJUST_PRIVILEGES, TRUE /*OpenAsSelf*/, &hToken))
dwErr = NO_ERROR;
else
{
dwErr = GetLastError();
if (dwErr == ERROR_NO_TOKEN)
{
if (OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES, &hToken))
dwErr = NO_ERROR;
else
dwErr = GetLastError();
}
}
if (dwErr == NO_ERROR)
{
union
{
TOKEN_PRIVILEGES TokenPriv;
char ab[sizeof(TOKEN_PRIVILEGES) + sizeof(LUID_AND_ATTRIBUTES)];
} u;
u.TokenPriv.PrivilegeCount = 1;
u.TokenPriv.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
if (LookupPrivilegeValue(NULL /*localhost*/, SE_SHUTDOWN_NAME, &u.TokenPriv.Privileges[0].Luid))
{
if (!AdjustTokenPrivileges(hToken,
FALSE /*DisableAllPrivileges*/,
&u.TokenPriv,
RT_UOFFSETOF(TOKEN_PRIVILEGES, Privileges[1]),
NULL,
NULL) )
dwErr = GetLastError();
}
else
dwErr = GetLastError();
CloseHandle(hToken);
}
/*
* Do some parameter conversion.
*/
PRTUTF16 pwszLogMsg;
int rc = RTStrToUtf16(pszLogMsg, &pwszLogMsg);
if (RT_FAILURE(rc))
return rc;
DWORD cSecsTimeout = (cMsDelay + 499) / 1000;
/*
* If we're told to power off the system, we should try use InitiateShutdownW (6.0+)
* or ExitWindowsEx (3.50) rather than InitiateSystemShutdownW, because these other
* APIs allows us to explicitly specify that we want to power off.
*
* Note! For NT version 4, 3.51, and 3.50 the system may instaed reboot since the
* x86 HALs typically didn't know how to perform a power off.
*/
bool fDone = false;
if ( (fFlags & RTSYSTEM_SHUTDOWN_ACTION_MASK) == RTSYSTEM_SHUTDOWN_POWER_OFF
|| (fFlags & RTSYSTEM_SHUTDOWN_ACTION_MASK) == RTSYSTEM_SHUTDOWN_POWER_OFF_HALT)
{
/* This API has the grace period thing. */
decltype(InitiateShutdownW) *pfnInitiateShutdownW;
pfnInitiateShutdownW = (decltype(InitiateShutdownW) *)GetProcAddress(GetModuleHandleW(L"ADVAPI32.DLL"), "InitiateShutdownW");
if (pfnInitiateShutdownW)
{
DWORD fShutdownFlags = SHUTDOWN_POWEROFF;
if (fFlags & RTSYSTEM_SHUTDOWN_FORCE)
fShutdownFlags |= SHUTDOWN_FORCE_OTHERS | SHUTDOWN_FORCE_SELF;
DWORD fReason = SHTDN_REASON_MAJOR_OTHER | (fFlags & RTSYSTEM_SHUTDOWN_PLANNED ? SHTDN_REASON_FLAG_PLANNED : 0);
dwErr = pfnInitiateShutdownW(NULL /*pwszMachineName*/, pwszLogMsg, cSecsTimeout, fShutdownFlags, fReason);
if (dwErr == ERROR_INVALID_PARAMETER)
{
fReason &= ~SHTDN_REASON_FLAG_PLANNED; /* just in case... */
dwErr = pfnInitiateShutdownW(NULL /*pwszMachineName*/, pwszLogMsg, cSecsTimeout, fShutdownFlags, fReason);
}
if (dwErr == ERROR_SUCCESS)
{
rc = VINF_SUCCESS;
fDone = true;
}
}
if (!fDone)
{
/* No grace period here, too bad. */
decltype(ExitWindowsEx) *pfnExitWindowsEx;
pfnExitWindowsEx = (decltype(ExitWindowsEx) *)GetProcAddress(GetModuleHandleW(L"USER32.DLL"), "ExitWindowsEx");
if (pfnExitWindowsEx)
{
DWORD fExitWindows = EWX_POWEROFF | EWX_SHUTDOWN;
if (fFlags & RTSYSTEM_SHUTDOWN_FORCE)
fExitWindows |= EWX_FORCE | EWX_FORCEIFHUNG;
if (pfnExitWindowsEx(fExitWindows, SHTDN_REASON_MAJOR_OTHER))
fDone = true;
else if (pfnExitWindowsEx(fExitWindows & ~EWX_FORCEIFHUNG, SHTDN_REASON_MAJOR_OTHER))
fDone = true;
}
}
}
/*
* Fall back on the oldest API.
*/
if (!fDone)
{
BOOL fRebootAfterShutdown = (fFlags & RTSYSTEM_SHUTDOWN_ACTION_MASK) == RTSYSTEM_SHUTDOWN_REBOOT
? TRUE : FALSE;
BOOL fForceAppsClosed = fFlags & RTSYSTEM_SHUTDOWN_FORCE ? TRUE : FALSE;
if (InitiateSystemShutdownW(NULL /*pwszMachineName = NULL = localhost*/,
pwszLogMsg,
cSecsTimeout,
fForceAppsClosed,
fRebootAfterShutdown))
rc = (fFlags & RTSYSTEM_SHUTDOWN_ACTION_MASK) == RTSYSTEM_SHUTDOWN_HALT ? VINF_SYS_MAY_POWER_OFF : VINF_SUCCESS;
else
rc = RTErrConvertFromWin32(dwErr);
}
RTUtf16Free(pwszLogMsg);
return rc;
}
RT_EXPORT_SYMBOL(RTSystemShutdown);
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