You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
532 lines
20 KiB
532 lines
20 KiB
// --------------------------------------------------------------------------
|
|
// Module Name: GracefulTerminateApplication.cpp
|
|
//
|
|
// Copyright (c) 2000, Microsoft Corporation
|
|
//
|
|
// Class to manager terminating applications gracefully.
|
|
//
|
|
// History: 2000-10-27 vtan created
|
|
// 2000-11-04 vtan split into separate file
|
|
// --------------------------------------------------------------------------
|
|
|
|
#ifdef _X86_
|
|
|
|
#include "StandardHeader.h"
|
|
#include "GracefulTerminateApplication.h"
|
|
|
|
#include "KernelResources.h"
|
|
#include "Thread.h"
|
|
#include "WarningDialog.h"
|
|
|
|
// --------------------------------------------------------------------------
|
|
// CProgressDialog
|
|
//
|
|
// Purpose: A class to manage displaying a progress dialog on a separate
|
|
// thread if a certain period of time elapses. This is so that
|
|
// in case the process doesn't terminate in a period of time
|
|
// a dialog indicating wait is shown so the user is not left
|
|
// staring at a blank screen.
|
|
//
|
|
// History: 2000-11-04 vtan created
|
|
// --------------------------------------------------------------------------
|
|
|
|
class CProgressDialog : public CThread
|
|
{
|
|
private:
|
|
CProgressDialog (void);
|
|
public:
|
|
CProgressDialog (CWarningDialog *pWarningDialog);
|
|
virtual ~CProgressDialog (void);
|
|
|
|
void SignalTerminated (void);
|
|
protected:
|
|
virtual DWORD Entry (void);
|
|
private:
|
|
CWarningDialog* _pWarningDialog;
|
|
CEvent _event;
|
|
};
|
|
|
|
// --------------------------------------------------------------------------
|
|
// CProgressDialog::CProgressDialog
|
|
//
|
|
// Arguments: <none>
|
|
//
|
|
// Returns: <none>
|
|
//
|
|
// Purpose: Constructor for CProgressDialog. Keeps a reference to the
|
|
// given CWarningDialog.
|
|
//
|
|
// History: 2000-11-04 vtan created
|
|
// --------------------------------------------------------------------------
|
|
|
|
CProgressDialog::CProgressDialog (CWarningDialog *pWarningDialog) :
|
|
_pWarningDialog(NULL),
|
|
_event(NULL)
|
|
|
|
{
|
|
if (IsCreated())
|
|
{
|
|
pWarningDialog->AddRef();
|
|
_pWarningDialog = pWarningDialog;
|
|
Resume();
|
|
}
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
// CProgressDialog::~CProgressDialog
|
|
//
|
|
// Arguments: <none>
|
|
//
|
|
// Returns: <none>
|
|
//
|
|
// Purpose: Releases the CWarningDialog reference.
|
|
//
|
|
// History: 2000-11-04 vtan created
|
|
// --------------------------------------------------------------------------
|
|
|
|
CProgressDialog::~CProgressDialog (void)
|
|
|
|
{
|
|
_pWarningDialog->Release();
|
|
_pWarningDialog = NULL;
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
// CProgressDialog::SignalTerminated
|
|
//
|
|
// Arguments: <none>
|
|
//
|
|
// Returns: <none>
|
|
//
|
|
// Purpose: Signals the internal event that the process being watched is
|
|
// termination. This is necessary because there is no handle to
|
|
// the actual process to watch as it's kept on the server side
|
|
// and not given to us the client. However, the result of the
|
|
// termination is. Signaling this object will release the waiting
|
|
// thread and cause it to exit.
|
|
//
|
|
// History: 2000-11-04 vtan created
|
|
// --------------------------------------------------------------------------
|
|
|
|
void CProgressDialog::SignalTerminated (void)
|
|
|
|
{
|
|
TSTATUS(_event.Set());
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
// CProgressDialog::Entry
|
|
//
|
|
// Arguments: <none>
|
|
//
|
|
// Returns: DWORD
|
|
//
|
|
// Purpose: Thread which waits for the internal event to be signaled. If
|
|
// the event is signaled it will "cancel" the 3 second wait and
|
|
// the thread will exit. Otherwise the wait times out and the
|
|
// progress dialog is shown - waiting for termination.
|
|
//
|
|
// History: 2000-11-04 vtan created
|
|
// --------------------------------------------------------------------------
|
|
|
|
DWORD CProgressDialog::Entry (void)
|
|
|
|
{
|
|
DWORD dwWaitResult;
|
|
|
|
// Wait for the event to be signaled or for it to timeout. If signaled
|
|
// then the process is terminated and no progress is required. Otherwise
|
|
// prepare to show progress while the process is being terminated.
|
|
|
|
if (NT_SUCCESS(_event.Wait(2000, &dwWaitResult)) && (WAIT_TIMEOUT == dwWaitResult))
|
|
{
|
|
_pWarningDialog->ShowProgress(100, 7500);
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
// CGracefulTerminateApplication::CGracefulTerminateApplication
|
|
//
|
|
// Arguments: <none>
|
|
//
|
|
// Returns: <none>
|
|
//
|
|
// Purpose: Constructor for CGracefulTerminateApplication.
|
|
//
|
|
// History: 2000-10-27 vtan created
|
|
// --------------------------------------------------------------------------
|
|
|
|
CGracefulTerminateApplication::CGracefulTerminateApplication (void) :
|
|
_dwProcessID(0),
|
|
_fFoundWindow(false)
|
|
|
|
{
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
// CGracefulTerminateApplication::~CGracefulTerminateApplication
|
|
//
|
|
// Arguments: <none>
|
|
//
|
|
// Returns: <none>
|
|
//
|
|
// Purpose: Destructor for CGracefulTerminateApplication.
|
|
//
|
|
// History: 2000-10-27 vtan created
|
|
// --------------------------------------------------------------------------
|
|
|
|
CGracefulTerminateApplication::~CGracefulTerminateApplication (void)
|
|
|
|
{
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
// CGracefulTerminateApplication::Terminate
|
|
//
|
|
// Arguments: dwProcessID = Process ID of process to terminate.
|
|
//
|
|
// Returns: <none>
|
|
//
|
|
// Purpose: Walk the window list for top level windows that correspond
|
|
// to this process ID and are visible. Close them. The callback
|
|
// handles the work and this function returns the result in the
|
|
// process exit code which the server examines.
|
|
//
|
|
// History: 2000-10-27 vtan created
|
|
// --------------------------------------------------------------------------
|
|
|
|
void CGracefulTerminateApplication::Terminate (DWORD dwProcessID)
|
|
|
|
{
|
|
DWORD dwExitCode;
|
|
|
|
_dwProcessID = dwProcessID;
|
|
TBOOL(EnumWindows(EnumWindowsProc, reinterpret_cast<LPARAM>(this)));
|
|
if (_fFoundWindow)
|
|
{
|
|
dwExitCode = WAIT_WINDOWS_FOUND;
|
|
}
|
|
else
|
|
{
|
|
dwExitCode = NO_WINDOWS_FOUND;
|
|
}
|
|
ExitProcess(dwExitCode);
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
// CGracefulTerminateApplication::Prompt
|
|
//
|
|
// Arguments: hInstance = HINSTANCE of this DLL.
|
|
// hProcess = Inherited handle to parent process.
|
|
//
|
|
// Returns: <none>
|
|
//
|
|
// Purpose: Shows a prompt that handles termination of the parent of this
|
|
// process. The parent is assumed to be a bad application type 1
|
|
// that caused this stub to be executed via the
|
|
// "rundll32 shsvcs.dll,FUSCompatibilityEntry prompt" command.
|
|
// Because there can only be a single instance of the type 1
|
|
// application running and the parent of this process hasn't
|
|
// registered yet querying for this process by image name will
|
|
// always find the correct process.
|
|
//
|
|
// History: 2000-11-03 vtan created
|
|
// --------------------------------------------------------------------------
|
|
|
|
void CGracefulTerminateApplication::Prompt (HINSTANCE hInstance, HANDLE hProcess)
|
|
|
|
{
|
|
bool fTerminated;
|
|
ULONG ulReturnLength;
|
|
PROCESS_BASIC_INFORMATION processBasicInformation;
|
|
|
|
// Read the parent's image name from the RTL_USER_PROCESS_PARAMETERS.
|
|
|
|
fTerminated = false;
|
|
if (hProcess != NULL)
|
|
{
|
|
if (NT_SUCCESS(NtQueryInformationProcess(hProcess,
|
|
ProcessBasicInformation,
|
|
&processBasicInformation,
|
|
sizeof(processBasicInformation),
|
|
&ulReturnLength)))
|
|
{
|
|
SIZE_T dwNumberOfBytesRead;
|
|
PEB peb;
|
|
|
|
if (ReadProcessMemory(hProcess,
|
|
processBasicInformation.PebBaseAddress,
|
|
&peb,
|
|
sizeof(peb),
|
|
&dwNumberOfBytesRead) != FALSE)
|
|
{
|
|
RTL_USER_PROCESS_PARAMETERS processParameters;
|
|
|
|
if (ReadProcessMemory(hProcess,
|
|
peb.ProcessParameters,
|
|
&processParameters,
|
|
sizeof(processParameters),
|
|
&dwNumberOfBytesRead) != FALSE)
|
|
{
|
|
WCHAR *pszImageName;
|
|
|
|
pszImageName = (WCHAR*)LocalAlloc(LMEM_FIXED, processParameters.ImagePathName.Length + sizeof(WCHAR)); // sizeof(WCHAR) for null terminator
|
|
if (pszImageName != NULL)
|
|
{
|
|
if (ReadProcessMemory(hProcess,
|
|
processParameters.ImagePathName.Buffer,
|
|
pszImageName,
|
|
processParameters.ImagePathName.Length,
|
|
&dwNumberOfBytesRead) != FALSE)
|
|
{
|
|
pszImageName[processParameters.ImagePathName.Length / sizeof(WCHAR)] = L'\0';
|
|
|
|
// And show a prompt for this process.
|
|
|
|
fTerminated = ShowPrompt(hInstance, pszImageName);
|
|
}
|
|
|
|
LocalFree(pszImageName);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
TBOOL(CloseHandle(hProcess));
|
|
}
|
|
ExitProcess(fTerminated);
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
// CGracefulTerminateApplication::ShowPrompt
|
|
//
|
|
// Arguments: hInstance = HINSTANCE of this DLL.
|
|
// pszImagename = Image name of process to terminate.
|
|
//
|
|
// Returns: bool
|
|
//
|
|
// Purpose: Shows the appropriate prompt for termination of the first
|
|
// instance of a BAM type 1 process. If the current user does
|
|
// not have administrator privileges then a "STOP" dialog is
|
|
// shown that the user must get the other user to close the
|
|
// program. Otherwise the "PROMPT" dialog is shown which gives
|
|
// the user the option to terminate the process.
|
|
//
|
|
// If termination is requested and the termatinion fails the
|
|
// another warning dialog to that effect is shown.
|
|
//
|
|
// History: 2000-11-03 vtan created
|
|
// --------------------------------------------------------------------------
|
|
|
|
bool CGracefulTerminateApplication::ShowPrompt (HINSTANCE hInstance, const WCHAR *pszImageName)
|
|
|
|
{
|
|
bool fTerminated;
|
|
ULONG ulConnectionInfoLength;
|
|
HANDLE hPort;
|
|
UNICODE_STRING portName;
|
|
SECURITY_QUALITY_OF_SERVICE sqos;
|
|
WCHAR szConnectionInfo[32];
|
|
|
|
fTerminated = false;
|
|
RtlInitUnicodeString(&portName, FUS_PORT_NAME);
|
|
sqos.Length = sizeof(sqos);
|
|
sqos.ImpersonationLevel = SecurityImpersonation;
|
|
sqos.ContextTrackingMode = SECURITY_DYNAMIC_TRACKING;
|
|
sqos.EffectiveOnly = TRUE;
|
|
lstrcpyW(szConnectionInfo, FUS_CONNECTION_REQUEST);
|
|
ulConnectionInfoLength = sizeof(szConnectionInfo);
|
|
if (NT_SUCCESS(NtConnectPort(&hPort,
|
|
&portName,
|
|
&sqos,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
szConnectionInfo,
|
|
&ulConnectionInfoLength)))
|
|
{
|
|
bool fCanTerminateFirstInstance;
|
|
CWarningDialog *pWarningDialog;
|
|
WCHAR szUser[256];
|
|
|
|
// Get the user's privilege level for this operation. This API also
|
|
// returns the current user for the BAM type 1 process.
|
|
|
|
fCanTerminateFirstInstance = CanTerminateFirstInstance(hPort, pszImageName, szUser, ARRAYSIZE(szUser));
|
|
pWarningDialog = new CWarningDialog(hInstance, NULL, pszImageName, szUser);
|
|
if (pWarningDialog != NULL)
|
|
{
|
|
|
|
// Show the appropriate dialog based on the privilege level.
|
|
|
|
if (pWarningDialog->ShowPrompt(fCanTerminateFirstInstance) == IDOK)
|
|
{
|
|
CProgressDialog *pProgressDialog;
|
|
|
|
// Create a progress dialog object in case of delayed termination.
|
|
// This will create the watcher thread.
|
|
|
|
pProgressDialog = new CProgressDialog(pWarningDialog);
|
|
if ((pProgressDialog != NULL) && !pProgressDialog->IsCreated())
|
|
{
|
|
pProgressDialog->Release();
|
|
pProgressDialog = NULL;
|
|
}
|
|
|
|
// Attempt to terminate the process if requested by the user.
|
|
|
|
fTerminated = TerminatedFirstInstance(hPort, pszImageName);
|
|
|
|
// Once this function returns signal the event (in case the
|
|
// thread is still waiting). If the thread is still waiting this
|
|
// effectively cancels the dialog. Either way if the dialog is
|
|
// shown then close it, wait for the thread to exit and release
|
|
// the reference to destroy the object.
|
|
|
|
if (pProgressDialog != NULL)
|
|
{
|
|
pProgressDialog->SignalTerminated();
|
|
pWarningDialog->CloseDialog();
|
|
pProgressDialog->WaitForCompletion(INFINITE);
|
|
pProgressDialog->Release();
|
|
}
|
|
|
|
// If there was some failure then let the user know.
|
|
|
|
if (!fTerminated)
|
|
{
|
|
pWarningDialog->ShowFailure();
|
|
}
|
|
}
|
|
pWarningDialog->Release();
|
|
}
|
|
TBOOL(CloseHandle(hPort));
|
|
}
|
|
return(fTerminated);
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
// CGracefulTerminateApplication::CanTerminateFirstInstance
|
|
//
|
|
// Arguments: hPort = Port to server.
|
|
// pszImageName = Image name of process to terminate.
|
|
// pszUser = User of process (returned).
|
|
// cchUser = Count of characters for buffer.
|
|
//
|
|
// Returns: bool
|
|
//
|
|
// Purpose: Asks the server whether the current user has privileges to
|
|
// terminate the BAM type 1 process of the given image name
|
|
// which is known to be running. The API returns whether the
|
|
// operation is allowed and who the current user of the process
|
|
// is.
|
|
//
|
|
// History: 2000-11-03 vtan created
|
|
// --------------------------------------------------------------------------
|
|
|
|
bool CGracefulTerminateApplication::CanTerminateFirstInstance (HANDLE hPort, const WCHAR *pszImageName, WCHAR *pszUser, int cchUser)
|
|
|
|
{
|
|
bool fCanTerminate;
|
|
|
|
fCanTerminate = false;
|
|
if ((hPort != NULL) && (pszImageName != NULL))
|
|
{
|
|
FUSAPI_PORT_MESSAGE portMessageIn, portMessageOut;
|
|
|
|
ZeroMemory(&portMessageIn, sizeof(portMessageIn));
|
|
ZeroMemory(&portMessageOut, sizeof(portMessageOut));
|
|
portMessageIn.apiBAM.apiGeneric.ulAPINumber = API_BAM_QUERYUSERPERMISSION;
|
|
portMessageIn.apiBAM.apiSpecific.apiQueryUserPermission.in.pszImageName = pszImageName;
|
|
portMessageIn.apiBAM.apiSpecific.apiQueryUserPermission.in.cchImageName = lstrlen(pszImageName) + sizeof('\0');
|
|
portMessageIn.apiBAM.apiSpecific.apiQueryUserPermission.in.pszUser = pszUser;
|
|
portMessageIn.apiBAM.apiSpecific.apiQueryUserPermission.in.cchUser = cchUser;
|
|
portMessageIn.portMessage.u1.s1.DataLength = sizeof(API_BAM);
|
|
portMessageIn.portMessage.u1.s1.TotalLength = static_cast<CSHORT>(sizeof(FUSAPI_PORT_MESSAGE));
|
|
if (NT_SUCCESS(NtRequestWaitReplyPort(hPort, &portMessageIn.portMessage, &portMessageOut.portMessage)) &&
|
|
NT_SUCCESS(portMessageOut.apiBAM.apiGeneric.status))
|
|
{
|
|
fCanTerminate = portMessageOut.apiBAM.apiSpecific.apiQueryUserPermission.out.fCanShutdownApplication;
|
|
pszUser[cchUser - sizeof('\0')] = L'\0';
|
|
}
|
|
else
|
|
{
|
|
pszUser[0] = L'\0';
|
|
}
|
|
}
|
|
return(fCanTerminate);
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
// CGracefulTerminateApplication::TerminatedFirstInstance
|
|
//
|
|
// Arguments: hPort = Port to server.
|
|
// pszImageName = Image name to terminate.
|
|
//
|
|
// Returns: bool
|
|
//
|
|
// Purpose: Asks the server to terminate the first running instance of the
|
|
// BAM type 1 process.
|
|
//
|
|
// History: 2000-11-03 vtan created
|
|
// --------------------------------------------------------------------------
|
|
|
|
bool CGracefulTerminateApplication::TerminatedFirstInstance (HANDLE hPort, const WCHAR *pszImageName)
|
|
|
|
{
|
|
bool fTerminated;
|
|
|
|
fTerminated = false;
|
|
if (hPort != NULL)
|
|
{
|
|
FUSAPI_PORT_MESSAGE portMessageIn, portMessageOut;
|
|
|
|
ZeroMemory(&portMessageIn, sizeof(portMessageIn));
|
|
ZeroMemory(&portMessageOut, sizeof(portMessageOut));
|
|
portMessageIn.apiBAM.apiGeneric.ulAPINumber = API_BAM_TERMINATERUNNING;
|
|
portMessageIn.apiBAM.apiSpecific.apiTerminateRunning.in.pszImageName = pszImageName;
|
|
portMessageIn.apiBAM.apiSpecific.apiTerminateRunning.in.cchImageName = lstrlen(pszImageName) + sizeof('\0');
|
|
portMessageIn.portMessage.u1.s1.DataLength = sizeof(API_BAM);
|
|
portMessageIn.portMessage.u1.s1.TotalLength = static_cast<CSHORT>(sizeof(FUSAPI_PORT_MESSAGE));
|
|
if (NT_SUCCESS(NtRequestWaitReplyPort(hPort, &portMessageIn.portMessage, &portMessageOut.portMessage)) &&
|
|
NT_SUCCESS(portMessageOut.apiBAM.apiGeneric.status))
|
|
{
|
|
fTerminated = portMessageOut.apiBAM.apiSpecific.apiTerminateRunning.out.fResult;
|
|
}
|
|
}
|
|
return(fTerminated);
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
// CGracefulTerminateApplication::EnumWindowsProc
|
|
//
|
|
// Arguments: See the platform SDK under EnumWindowsProc.
|
|
//
|
|
// Returns: See the platform SDK under EnumWindowsProc.
|
|
//
|
|
// Purpose: Top level window enumerator callback which compares the
|
|
// process IDs of the windows and whether they are visible. If
|
|
// there is a match on BOTH counts the a WM_CLOSE message is
|
|
// posted to the window to allow a graceful termination.
|
|
//
|
|
// History: 2000-10-27 vtan created
|
|
// --------------------------------------------------------------------------
|
|
|
|
BOOL CALLBACK CGracefulTerminateApplication::EnumWindowsProc (HWND hwnd, LPARAM lParam)
|
|
|
|
{
|
|
DWORD dwThreadID, dwProcessID;
|
|
CGracefulTerminateApplication *pThis;
|
|
|
|
pThis = reinterpret_cast<CGracefulTerminateApplication*>(lParam);
|
|
dwThreadID = GetWindowThreadProcessId(hwnd, &dwProcessID);
|
|
if ((dwProcessID == pThis->_dwProcessID) && IsWindowVisible(hwnd))
|
|
{
|
|
pThis->_fFoundWindow = true;
|
|
TBOOL(PostMessage(hwnd, WM_CLOSE, 0, 0));
|
|
}
|
|
return(TRUE);
|
|
}
|
|
|
|
#endif /* _X86_ */
|
|
|