Source code of Windows XP (NT5)
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// --------------------------------------------------------------------------
// Module Name: BadApplicationAPIRequest.cpp
//
// Copyright (c) 2000, Microsoft Corporation
//
// This file contains a class to implement bad application manager API
// requests.
//
// History: 2000-08-25 vtan created
// 2000-12-04 vtan moved to separate file
// --------------------------------------------------------------------------
#ifdef _X86_
#include "StandardHeader.h"
#include "BadApplicationAPIRequest.h"
#include "StatusCode.h"
#include "TokenInformation.h"
// --------------------------------------------------------------------------
// CBadApplicationAPIRequest::s_pBadApplicationManager
//
// Purpose: Single instance of the CBadApplicationManager object.
//
// History: 2000-08-26 vtan created
// --------------------------------------------------------------------------
CBadApplicationManager* CBadApplicationAPIRequest::s_pBadApplicationManager = NULL;
// --------------------------------------------------------------------------
// CBadApplicationAPIRequest::CBadApplicationAPIRequest
//
// Arguments: pAPIDispatcher = CAPIDispatcher that calls this object.
//
// Returns: <none>
//
// Purpose: Constructor for the CBadApplicationAPIRequest class. It just passes the
// control to the super class.
//
// History: 2000-08-25 vtan created
// --------------------------------------------------------------------------
CBadApplicationAPIRequest::CBadApplicationAPIRequest (CAPIDispatcher* pAPIDispatcher) :
CAPIRequest(pAPIDispatcher)
{
}
// --------------------------------------------------------------------------
// CBadApplicationAPIRequest::CBadApplicationAPIRequest
//
// Arguments: pAPIDispatcher = CAPIDispatcher that calls this object.
// portMessage = CPortMessage to copy construct.
//
// Returns: <none>
//
// Purpose: Constructor for the CBadApplicationAPIRequest class. It just passes the
// control to the super class.
//
// History: 2000-08-25 vtan created
// --------------------------------------------------------------------------
CBadApplicationAPIRequest::CBadApplicationAPIRequest (CAPIDispatcher* pAPIDispatcher, const CPortMessage& portMessage) :
CAPIRequest(pAPIDispatcher, portMessage)
{
}
// --------------------------------------------------------------------------
// CBadApplicationAPIRequest::~CBadApplicationAPIRequest
//
// Arguments: <none>
//
// Returns: <none>
//
// Purpose: Destructor for the CBadApplicationAPIRequest class.
//
// History: 2000-08-25 vtan created
// --------------------------------------------------------------------------
CBadApplicationAPIRequest::~CBadApplicationAPIRequest (void)
{
}
// --------------------------------------------------------------------------
// CBadApplicationAPIRequest::Execute
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Execute implementation for bad application API requests. This
// function dispatches requests based on the API request number.
//
// History: 2000-08-25 vtan created
// --------------------------------------------------------------------------
NTSTATUS CBadApplicationAPIRequest::Execute (void)
{
NTSTATUS status;
switch (reinterpret_cast<API_BAM*>(&_data)->apiGeneric.ulAPINumber)
{
case API_BAM_QUERYRUNNING:
status = Execute_QueryRunning();
break;
case API_BAM_REGISTERRUNNING:
status = Execute_RegisterRunning();
break;
case API_BAM_QUERYUSERPERMISSION:
status = Execute_QueryUserPermission();
break;
case API_BAM_TERMINATERUNNING:
status = Execute_TerminateRunning();
break;
case API_BAM_REQUESTSWITCHUSER:
status = Execute_RequestSwitchUser();
break;
default:
DISPLAYMSG("Unknown API request in CBadApplicationAPIRequest::Execute");
status = STATUS_NOT_IMPLEMENTED;
break;
}
TSTATUS(status);
return(status);
}
// --------------------------------------------------------------------------
// CBadApplicationAPIRequest::StaticInitialize
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Static initializer for the class. It creates the static
// instance of the CBadApplicationManager which must be a single
// instance and knows about bad running applications.
//
// History: 2000-08-26 vtan created
// --------------------------------------------------------------------------
NTSTATUS CBadApplicationAPIRequest::StaticInitialize (HINSTANCE hInstance)
{
NTSTATUS status;
if (s_pBadApplicationManager == NULL)
{
s_pBadApplicationManager = new CBadApplicationManager(hInstance);
if (s_pBadApplicationManager != NULL)
{
status = STATUS_SUCCESS;
}
else
{
status = STATUS_NO_MEMORY;
}
}
else
{
status = STATUS_SUCCESS;
}
return(status);
}
// --------------------------------------------------------------------------
// CBadApplicationAPIRequest::StaticTerminate
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Static destructor for the class. This terminates the bad
// application manager, releases the reference on the object and
// clears out the static variable. When the thread dies it will
// clean itself up.
//
// History: 2000-08-26 vtan created
// --------------------------------------------------------------------------
NTSTATUS CBadApplicationAPIRequest::StaticTerminate (void)
{
if (s_pBadApplicationManager != NULL)
{
s_pBadApplicationManager->Terminate();
s_pBadApplicationManager->Release();
s_pBadApplicationManager = NULL;
}
return(STATUS_SUCCESS);
}
// --------------------------------------------------------------------------
// CBadApplicationAPIRequest::Execute_QueryRunning
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Handles API_BAM_QUERYRUNNING. Returns whether or not the
// requested image path is currently a known (tracked)
// executable that is running. Let the bad application manager
// do the work. Exclude checking in the same session.
//
// History: 2000-08-26 vtan created
// --------------------------------------------------------------------------
NTSTATUS CBadApplicationAPIRequest::Execute_QueryRunning (void)
{
NTSTATUS status;
HANDLE hProcessClient;
API_BAM_QUERYRUNNING_IN *pAPIIn;
API_BAM_QUERYRUNNING_OUT *pAPIOut;
WCHAR *pszImageName;
hProcessClient = _pAPIDispatcher->GetClientProcess();
pAPIIn = &reinterpret_cast<API_BAM*>(&_data)->apiSpecific.apiQueryRunning.in;
pAPIOut = &reinterpret_cast<API_BAM*>(&_data)->apiSpecific.apiQueryRunning.out;
status = _AllocAndMapClientString(hProcessClient, pAPIIn->pszImageName, pAPIIn->cchImageName,
MAX_PATH, &pszImageName);
if(NT_SUCCESS(status))
{
CBadApplication badApplication(pszImageName);
pAPIOut->fResult = s_pBadApplicationManager->QueryRunning(badApplication, _pAPIDispatcher->GetClientSessionID());
status = STATUS_SUCCESS;
_FreeMappedClientString(pszImageName);
}
SetDataLength(sizeof(API_BAM));
return(status);
}
// --------------------------------------------------------------------------
// CBadApplicationAPIRequest::Execute_RegisterRunning
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Handles API_BAM_REGISTERRUNNING. Adds the given image
// executable to the list of currently running bad applications
// so that further instances can be excluded.
//
// History: 2000-08-26 vtan created
// --------------------------------------------------------------------------
NTSTATUS CBadApplicationAPIRequest::Execute_RegisterRunning (void)
{
NTSTATUS status;
API_BAM_REGISTERRUNNING_IN *pAPIIn;
API_BAM_REGISTERRUNNING_OUT *pAPIOut;
WCHAR *pszImageName;
pAPIIn = &reinterpret_cast<API_BAM*>(&_data)->apiSpecific.apiRegisterRunning.in;
pAPIOut = &reinterpret_cast<API_BAM*>(&_data)->apiSpecific.apiRegisterRunning.out;
if ((pAPIIn->bamType > BAM_TYPE_MINIMUM) && (pAPIIn->bamType < BAM_TYPE_MAXIMUM))
{
status = _AllocAndMapClientString(_pAPIDispatcher->GetClientProcess(),
pAPIIn->pszImageName, pAPIIn->cchImageName,
MAX_PATH, &pszImageName);
if (NT_SUCCESS(status))
{
HANDLE hProcess;
CBadApplication badApplication(pszImageName);
hProcess = OpenProcess(SYNCHRONIZE | PROCESS_QUERY_INFORMATION,
FALSE,
pAPIIn->dwProcessID);
if (hProcess != NULL)
{
status = s_pBadApplicationManager->RegisterRunning(badApplication, hProcess, pAPIIn->bamType);
TBOOL(CloseHandle(hProcess));
}
else
{
status = CStatusCode::StatusCodeOfLastError();
}
_FreeMappedClientString(pszImageName);
}
}
else
{
status = STATUS_INVALID_PARAMETER;
}
SetDataLength(sizeof(API_BAM));
return(status);
}
// --------------------------------------------------------------------------
// CBadApplicationAPIRequest::Execute_QueryUserPermission
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Handles API_BAM_QUERYUSERPERMISSION. Queries the client
// permission to close down the bad application. Also returns
// the current user of the bad application.
//
// History: 2000-08-31 vtan created
// --------------------------------------------------------------------------
NTSTATUS CBadApplicationAPIRequest::Execute_QueryUserPermission (void)
{
NTSTATUS status;
API_BAM_QUERYUSERPERMISSION_IN *pAPIIn;
API_BAM_QUERYUSERPERMISSION_OUT *pAPIOut;
WCHAR* pszImageName;
pAPIIn = &reinterpret_cast<API_BAM*>(&_data)->apiSpecific.apiQueryUserPermission.in;
pAPIOut = &reinterpret_cast<API_BAM*>(&_data)->apiSpecific.apiQueryUserPermission.out;
status = _AllocAndMapClientString(_pAPIDispatcher->GetClientProcess(),
pAPIIn->pszImageName, pAPIIn->cchImageName,
MAX_PATH, &pszImageName);
if(NT_SUCCESS(status))
{
HANDLE hProcess;
CBadApplication badApplication(pszImageName);
// Query information on the bad application
// (get back the process handle).
status = s_pBadApplicationManager->QueryInformation(badApplication, hProcess);
if (NT_SUCCESS(status))
{
HANDLE hToken;
// Get the client token and impersonate that user.
status = OpenClientToken(hToken);
if (NT_SUCCESS(status))
{
bool fCanShutdownApplication;
HANDLE hTokenProcess;
CTokenInformation tokenInformationClient(hToken);
fCanShutdownApplication = tokenInformationClient.IsUserAnAdministrator();
// Get the bad application process token to get
// information on the user for the process.
if (OpenProcessToken(hProcess,
TOKEN_QUERY,
&hTokenProcess) != FALSE)
{
const WCHAR *pszUserDisplayName;
CTokenInformation tokenInformationProcess(hTokenProcess);
pszUserDisplayName = tokenInformationProcess.GetUserDisplayName();
if (pszUserDisplayName != NULL)
{
int iCharsToWrite;
SIZE_T dwNumberOfBytesWritten;
// Return the information back to the client.
pAPIOut->fCanShutdownApplication = fCanShutdownApplication;
iCharsToWrite = lstrlen(pszUserDisplayName) + sizeof('\0');
if (iCharsToWrite > pAPIIn->cchUser)
{
iCharsToWrite = pAPIIn->cchUser;
}
if (WriteProcessMemory(_pAPIDispatcher->GetClientProcess(),
pAPIIn->pszUser,
const_cast<WCHAR*>(pszUserDisplayName),
iCharsToWrite * sizeof(WCHAR),
&dwNumberOfBytesWritten) != FALSE)
{
status = STATUS_SUCCESS;
}
else
{
status = CStatusCode::StatusCodeOfLastError();
}
}
else
{
status = CStatusCode::StatusCodeOfLastError();
}
TBOOL(CloseHandle(hTokenProcess));
}
else
{
status = CStatusCode::StatusCodeOfLastError();
}
TBOOL(CloseHandle(hToken));
}
else
{
status = CStatusCode::StatusCodeOfLastError();
}
TBOOL(CloseHandle(hProcess));
}
_FreeMappedClientString(pszImageName);
}
SetDataLength(sizeof(API_BAM));
return(status);
}
// --------------------------------------------------------------------------
// CBadApplicationAPIRequest::Execute_QueryUserPermission
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Handles API_BAM_TERMINATERUNNING. Terminates the given running
// bad application so a different instance on a different
// window station can start it.
//
// History: 2000-08-31 vtan created
// --------------------------------------------------------------------------
NTSTATUS CBadApplicationAPIRequest::Execute_TerminateRunning (void)
{
NTSTATUS status;
API_BAM_TERMINATERUNNING_IN *pAPIIn;
API_BAM_TERMINATERUNNING_OUT *pAPIOut;
WCHAR *pszImageName;
pAPIIn = &reinterpret_cast<API_BAM*>(&_data)->apiSpecific.apiTerminateRunning.in;
pAPIOut = &reinterpret_cast<API_BAM*>(&_data)->apiSpecific.apiTerminateRunning.out;
status = _AllocAndMapClientString(_pAPIDispatcher->GetClientProcess(),
pAPIIn->pszImageName, pAPIIn->cchImageName,
MAX_PATH, &pszImageName);
if(NT_SUCCESS(status))
{
HANDLE hToken;
// Get the client token and for membership of the local administrators
// group. DO NOT IMPERSONATE THE CLIENT. This will almost certainly
// guarantee that the process cannot be terminated.
status = OpenClientToken(hToken);
if (NT_SUCCESS(status))
{
CTokenInformation tokenInformationClient(hToken);
if (tokenInformationClient.IsUserAnAdministrator())
{
HANDLE hProcess;
CBadApplication badApplication(pszImageName);
// Query information on the bad application
// (get back the process handle).
status = s_pBadApplicationManager->QueryInformation(badApplication, hProcess);
if (NT_SUCCESS(status))
{
do
{
status = CBadApplicationManager::PerformTermination(hProcess, true);
TBOOL(CloseHandle(hProcess));
} while (NT_SUCCESS(status) &&
NT_SUCCESS(s_pBadApplicationManager->QueryInformation(badApplication, hProcess)));
}
// If the information could not be found then it's
// probably not running. This indicates success.
else
{
status = STATUS_SUCCESS;
}
}
else
{
status = STATUS_ACCESS_DENIED;
}
TBOOL(CloseHandle(hToken));
}
_FreeMappedClientString(pszImageName);
}
pAPIOut->fResult = NT_SUCCESS(status);
SetDataLength(sizeof(API_BAM));
return(status);
}
// --------------------------------------------------------------------------
// CBadApplicationAPIRequest::Execute_RequestSwitchUser
//
// Arguments: <none>
//
// Returns: NTSTATUS
//
// Purpose: Handles API_BAM_REQUESTSWITCHUSER. Request from
// winlogon/msgina to switch a user. Terminate all bad
// applications related to disconnect. Reject the disconnect if
// it fails.
//
// History: 2000-11-02 vtan created
// --------------------------------------------------------------------------
NTSTATUS CBadApplicationAPIRequest::Execute_RequestSwitchUser (void)
{
API_BAM_REQUESTSWITCHUSER_OUT *pAPIOut;
pAPIOut = &reinterpret_cast<API_BAM*>(&_data)->apiSpecific.apiRequestSwitchUser.out;
pAPIOut->fAllowSwitch = NT_SUCCESS(s_pBadApplicationManager->RequestSwitchUser());
SetDataLength(sizeof(API_BAM));
return(STATUS_SUCCESS);
}
#endif /* _X86_ */