Leaked source code of windows server 2003
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/*==========================================================================
*
* Copyright (C) 2000 Microsoft Corporation. All Rights Reserved.
*
* File: DPLApp.cpp
* Content: DirectPlay Lobbied Application Functions
*@@BEGIN_MSINTERNAL
* History:
* Date By Reason
* ==== == ======
* 02/21/00 mjn Created
* 03/22/2000 jtk Changed interface names
* 04/18/2000 rmt Added additional parameter validation
* 04/25/2000 rmt Bug #s 33138, 33145, 33150
* 04/26/00 mjn Removed dwTimeOut from Send() API call
* 05/03/00 rmt DPL_UnRegister was not implemented!!
* 05/08/00 rmt Bug #34301 - Add flag to SetAppAvail to allow for multiple connects
* 06/15/00 rmt Bug #33617 - Must provide method for providing automatic launch of DirectPlay instances
* 07/08/2000 rmt Bug #38725 - Need to provide method to detect if app was lobby launched
* rmt Bug #38757 - Callback messages for connections may return AFTER WaitForConnection returns
* rmt Bug #38755 - No way to specify player name in Connection Settings
* rmt Bug #38758 - DPLOBBY8.H has incorrect comments
* rmt Bug #38783 - pvUserApplicationContext is only partially implemented
* rmt Added DPLHANDLE_ALLCONNECTIONS and dwFlags (reserved field to couple of funcs).
* 07/14/2000 rmt Bug #39257 - LobbyClient::ReleaseApp returns E_OUTOFMEMORY when called when no one connected
* rmt Bug #39487 - Remove WaitForConnect
* 08/05/2000 RichGr IA64: Use %p format specifier in DPFs for 32/64-bit pointers and handles.
* 08/15/2000 rmt Bug #42273 - DPLAY8: Samples sometimes get a DPNERR_ALREADYREGISTERED error. (Double connections)
* 08/18/2000 rmt Bug #42751 - DPLOBBY8: Prohibit more than one lobby client or lobby app per process
*@@END_MSINTERNAL
*
***************************************************************************/
#include "dnlobbyi.h"
//**********************************************************************
// Macro definitions
//**********************************************************************
//**********************************************************************
// Structure definitions
//**********************************************************************
//**********************************************************************
// Variable definitions
//**********************************************************************
typedef STDMETHODIMP AppQueryInterface(IDirectPlay8LobbiedApplication *pInterface,REFIID ridd,PVOID *ppvObj);
typedef STDMETHODIMP_(ULONG) AppAddRef(IDirectPlay8LobbiedApplication *pInterface);
typedef STDMETHODIMP_(ULONG) AppRelease(IDirectPlay8LobbiedApplication *pInterface);
typedef STDMETHODIMP AppRegisterMessageHandler(IDirectPlay8LobbiedApplication *pInterface,const PVOID pvUserContext,const PFNDPNMESSAGEHANDLER pfn, DPNHANDLE * const pdpnhConnection, const DWORD dwFlags);
typedef STDMETHODIMP AppSend(IDirectPlay8LobbiedApplication *pInterface,const DPNHANDLE hTarget,BYTE *const pBuffer,const DWORD pBufferSize,const DWORD dwFlags);
typedef STDMETHODIMP AppClose(IDirectPlay8LobbiedApplication *pInterface, const DWORD dwFlags);
typedef STDMETHODIMP AppGetConnectionSettings(IDirectPlay8LobbiedApplication *pInterface, const DPNHANDLE hLobbyClient, DPL_CONNECTION_SETTINGS * const pdplSessionInfo, DWORD *pdwInfoSize, const DWORD dwFlags );
typedef STDMETHODIMP AppSetConnectionSettings(IDirectPlay8LobbiedApplication *pInterface, const DPNHANDLE hTarget, const DPL_CONNECTION_SETTINGS * const pdplSessionInfo, const DWORD dwFlags );
IDirectPlay8LobbiedApplicationVtbl DPL_8LobbiedApplicationVtbl =
{
(AppQueryInterface*) DPL_QueryInterface,
(AppAddRef*) DPL_AddRef,
(AppRelease*) DPL_Release,
(AppRegisterMessageHandler*) DPL_RegisterMessageHandler,
DPL_RegisterProgram,
DPL_UnRegisterProgram,
(AppSend*) DPL_Send,
DPL_SetAppAvailable,
DPL_UpdateStatus,
(AppClose*) DPL_Close,
(AppGetConnectionSettings*) DPL_GetConnectionSettings,
(AppSetConnectionSettings*) DPL_SetConnectionSettings
};
//**********************************************************************
// Function prototypes
//**********************************************************************
//**********************************************************************
// Function definitions
//**********************************************************************
#undef DPF_MODNAME
#define DPF_MODNAME "DPL_RegisterProgram"
STDMETHODIMP DPL_RegisterProgram(IDirectPlay8LobbiedApplication *pInterface,
DPL_PROGRAM_DESC *const pdplProgramDesc,
const DWORD dwFlags)
{
HRESULT hResultCode;
DPFX(DPFPREP, 3,"Parameters: pInterface [0x%p], pdplProgramDesc [0x%p], dwFlags [0x%lx]",
pInterface,pdplProgramDesc,dwFlags);
#ifndef DPNBUILD_NOPARAMVAL
DIRECTPLAYLOBBYOBJECT *pdpLobbyObject;
TRY
{
pdpLobbyObject = static_cast<DIRECTPLAYLOBBYOBJECT*>(GET_OBJECT_FROM_INTERFACE(pInterface));
if( pdpLobbyObject->dwFlags & DPL_OBJECT_FLAG_PARAMVALIDATION )
{
if( FAILED( hResultCode = DPL_ValidateRegisterProgram( pInterface , pdplProgramDesc, dwFlags ) ) )
{
DPFX(DPFPREP, 0, "Error validating register params hr=[0x%lx]", hResultCode );
DPF_RETURN( hResultCode );
}
}
}
EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
DPFERR("Invalid object" );
DPF_RETURN(DPNERR_INVALIDOBJECT);
}
#endif // !DPNBUILD_NOPARAMVAL
hResultCode = DPLWriteProgramDesc(pdplProgramDesc);
DPF_RETURN(hResultCode);
}
#undef DPF_MODNAME
#define DPF_MODNAME "DPL_UnRegisterProgram"
STDMETHODIMP DPL_UnRegisterProgram(IDirectPlay8LobbiedApplication *pInterface,
GUID *const pGuidApplication,
const DWORD dwFlags)
{
HRESULT hResultCode;
DPFX(DPFPREP, 3,"Parameters: pInterface [0x%p], pGuidApplication [0x%p], dwFlags [0x%lx]",
pInterface,pGuidApplication,dwFlags);
#ifndef DPNBUILD_NOPARAMVAL
DIRECTPLAYLOBBYOBJECT *pdpLobbyObject;
TRY
{
pdpLobbyObject = static_cast<DIRECTPLAYLOBBYOBJECT*>(GET_OBJECT_FROM_INTERFACE(pInterface));
if( pdpLobbyObject->dwFlags & DPL_OBJECT_FLAG_PARAMVALIDATION )
{
if( FAILED( hResultCode = DPL_ValidateUnRegisterProgram( pInterface , pGuidApplication, dwFlags ) ) )
{
DPFX(DPFPREP, 0, "Error validating unregister params hr=[0x%lx]", hResultCode );
DPF_RETURN( hResultCode );
}
}
}
EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
DPFERR("Invalid object" );
DPF_RETURN(DPNERR_INVALIDOBJECT);
}
#endif // !DPNBUILD_NOPARAMVAL
hResultCode = DPLDeleteProgramDesc( pGuidApplication );
DPF_RETURN(hResultCode);
}
#undef DPF_MODNAME
#define DPF_MODNAME "DPL_SetAppAvailable"
STDMETHODIMP DPL_SetAppAvailable(IDirectPlay8LobbiedApplication *pInterface, const BOOL fAvailable, const DWORD dwFlags )
{
DIRECTPLAYLOBBYOBJECT *pdpLobbyObject;
HRESULT hResultCode;
DPFX(DPFPREP, 3,"Parameters: (none)");
#ifndef DPNBUILD_NOPARAMVAL
TRY
{
#endif // !DPNBUILD_NOPARAMVAL
pdpLobbyObject = static_cast<DIRECTPLAYLOBBYOBJECT*>(GET_OBJECT_FROM_INTERFACE(pInterface));
#ifndef DPNBUILD_NOPARAMVAL
if( pdpLobbyObject->dwFlags & DPL_OBJECT_FLAG_PARAMVALIDATION )
{
if( FAILED( hResultCode = DPL_ValidateSetAppAvailable( pInterface, fAvailable, dwFlags ) ) )
{
DPFX(DPFPREP, 0, "Error validating makeappavail params hr=[0x%lx]", hResultCode );
DPF_RETURN( hResultCode );
}
}
// Ensure we've been initialized
if (pdpLobbyObject->pReceiveQueue == NULL)
{
DPFERR("Not initialized");
DPF_RETURN(DPNERR_UNINITIALIZED);
}
}
EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
DPFERR("Invalid object" );
DPF_RETURN(DPNERR_INVALIDOBJECT);
}
#endif // !DPNBUILD_NOPARAMVAL
if( fAvailable )
{
// Indicate that we are waiting
pdpLobbyObject->pReceiveQueue->MakeAvailable();
if( dwFlags & DPLAVAILABLE_ALLOWMULTIPLECONNECT )
{
pdpLobbyObject->dwFlags |= DPL_OBJECT_FLAG_MULTICONNECT;
}
else
{
pdpLobbyObject->dwFlags &= ~(DPL_OBJECT_FLAG_MULTICONNECT);
}
}
else
{
pdpLobbyObject->pReceiveQueue->MakeUnavailable();
}
hResultCode = DPN_OK;
DPF_RETURN(hResultCode);
}
// DPL_UpdateStatus
//
// Send session status information to the lobby client. This should be called whenever
// the lobbied application connects to the game, fails to connect, disconnects, or is
// terminated (booted).
#undef DPF_MODNAME
#define DPF_MODNAME "DPL_UpdateStatus"
STDMETHODIMP DPL_UpdateStatus(IDirectPlay8LobbiedApplication *pInterface,
const DPNHANDLE hLobbyClient,
const DWORD dwStatus, const DWORD dwFlags )
{
HRESULT hResultCode;
DIRECTPLAYLOBBYOBJECT *pdpLobbyObject;
DPL_CONNECTION *pdplConnection;
DPL_INTERNAL_MESSAGE_UPDATE_STATUS Msg;
DPNHANDLE *hTargets = NULL;
DWORD dwNumTargets = 0;
DWORD dwTargetIndex = 0;
DPFX(DPFPREP, 3,"Parameters: pInterface [0x%p], hLobbyClient [0x%lx], dwStatus [0x%lx]",
pInterface,hLobbyClient,dwStatus);
#ifndef DPNBUILD_NOPARAMVAL
TRY
{
#endif // !DPNBUILD_NOPARAMVAL
pdpLobbyObject = static_cast<DIRECTPLAYLOBBYOBJECT*>(GET_OBJECT_FROM_INTERFACE(pInterface));
#ifndef DPNBUILD_NOPARAMVAL
if( pdpLobbyObject->dwFlags & DPL_OBJECT_FLAG_PARAMVALIDATION )
{
if( FAILED( hResultCode = DPL_ValidateUpdateStatus( pInterface, hLobbyClient, dwStatus, dwFlags ) ) )
{
DPFX(DPFPREP, 0, "Error validating updatestatus params hr=[0x%lx]", hResultCode );
DPF_RETURN( hResultCode );
}
}
// Ensure we've been initialized
if (pdpLobbyObject->pReceiveQueue == NULL)
{
DPFERR("Not initialized");
DPF_RETURN(DPNERR_UNINITIALIZED);
}
}
EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
DPFERR("Invalid object" );
DPF_RETURN(DPNERR_INVALIDOBJECT);
}
#endif // !DPNBUILD_NOPARAMVAL
Msg.dwMsgId = DPL_MSGID_INTERNAL_UPDATE_STATUS;
Msg.dwStatus = dwStatus;
if( hLobbyClient == DPLHANDLE_ALLCONNECTIONS )
{
dwNumTargets = 0;
// We need loop so if someone adds a connection during our run
// it gets added to our list
//
while( 1 )
{
hResultCode = DPLConnectionEnum( pdpLobbyObject, hTargets, &dwNumTargets );
if( hResultCode == DPNERR_BUFFERTOOSMALL )
{
if( hTargets )
{
delete [] hTargets;
}
hTargets = new DPNHANDLE[dwNumTargets];
if( hTargets == NULL )
{
DPFERR("Error allocating memory" );
hResultCode = DPNERR_OUTOFMEMORY;
dwNumTargets = 0;
goto EXIT_AND_CLEANUP;
}
memset( hTargets, 0x00, sizeof(DPNHANDLE)*dwNumTargets);
continue;
}
else if( FAILED( hResultCode ) )
{
DPFX(DPFPREP, 0, "Error getting list of connections hr=0x%x", hResultCode );
break;
}
else
{
break;
}
}
// Failed getting connection information
if( FAILED( hResultCode ) )
{
if( hTargets )
{
delete [] hTargets;
hTargets = NULL;
}
dwNumTargets = 0;
goto EXIT_AND_CLEANUP;
}
}
else
{
hTargets = new DPNHANDLE[1]; // We use array delete below so we need array new
if( hTargets == NULL )
{
DPFERR("Error allocating memory" );
hResultCode = DPNERR_OUTOFMEMORY;
dwNumTargets = 0;
goto EXIT_AND_CLEANUP;
}
dwNumTargets = 1;
hTargets[0] = hLobbyClient;
}
for( dwTargetIndex = 0; dwTargetIndex < dwNumTargets; dwTargetIndex++ )
{
if ((hResultCode = DPLConnectionFind(pdpLobbyObject,hTargets[dwTargetIndex],&pdplConnection,TRUE)) != DPN_OK)
{
DPFERR("Invalid send target");
DisplayDNError(0,hResultCode);
hResultCode = DPNERR_INVALIDHANDLE;
goto EXIT_AND_CLEANUP;
}
DNASSERT(pdplConnection->pSendQueue != NULL);
if (!pdplConnection->pSendQueue->IsReceiving())
{
DPFERR("Other side is not listening");
hResultCode = DPNERR_INVALIDHANDLE;
goto EXIT_AND_CLEANUP;
}
hResultCode = pdplConnection->pSendQueue->Send(reinterpret_cast<BYTE*>(&Msg),
sizeof(DPL_INTERNAL_MESSAGE_UPDATE_STATUS),
INFINITE,
DPL_MSGQ_MSGFLAGS_USER1,
0);
if( FAILED( hResultCode ) )
{
DPFX(DPFPREP, 0, "Error sending to connection 0x%x hr=0x%x", hTargets[dwTargetIndex], hResultCode );
}
}
EXIT_AND_CLEANUP:
for( dwTargetIndex = 0; dwTargetIndex < dwNumTargets; dwTargetIndex++ )
{
if( hTargets[dwTargetIndex] )
DPLConnectionRelease(pdpLobbyObject,hTargets[dwTargetIndex]);
}
if( hTargets )
delete [] hTargets;
DPF_RETURN(hResultCode);
}
#undef DPF_MODNAME
#define DPF_MODNAME "DPLAttemptLobbyConnection"
HRESULT DPLAttemptLobbyConnection(DIRECTPLAYLOBBYOBJECT *const pdpLobbyObject)
{
PTSTR pszCommandLine;
TCHAR *c;
DWORD dwCommandLineSize;
TCHAR pszObjectName[(sizeof(DWORD)*2)*2 + 1 + 1];
DNHANDLE hSyncEvent;
HRESULT hResultCode;
DNHANDLE hFileMap;
DPL_SHARED_CONNECT_BLOCK *pSharedBlock;
DWORD dwError;
DWORD dwReturnValue;
DPFX(DPFPREP, 3,"Parameters: (none)");
// Need a copy of the command line
dwCommandLineSize = (_tcslen(GetCommandLine()) + 1) * sizeof(TCHAR);
if ((pszCommandLine = static_cast<PTSTR>(DNMalloc(dwCommandLineSize))) == NULL)
{
DPFERR("Allocating memory failed");
return(DPNERR_OUTOFMEMORY);
}
_tcscpy(pszCommandLine,GetCommandLine());
DPFX(DPFPREP, 5,"Got command line [%s]",pszCommandLine);
// Try to find Lobby Launch ID string
c = _tcsstr(pszCommandLine,DPL_ID_STR);
if (c == NULL)
{
DNFree(pszCommandLine);
return(DPNERR_GENERIC);
}
c += _tcslen(DPL_ID_STR);
c--; // We are going to overwrite the '=' with a IDCHAR below
_tcsncpy(pszObjectName,c,(sizeof(DWORD)*2)*2 + 1);
pszObjectName[(sizeof(DWORD)*2)*2 + 1] = _T('\0'); // Ensure null terminated
DPFX(DPFPREP, 5,"Got object name [%s]",pszObjectName);
DNFree(pszCommandLine);
// Try to open shared memory
*pszObjectName = DPL_MSGQ_OBJECT_IDCHAR_FILEMAP;
hFileMap = DNCreateFileMapping(INVALID_HANDLE_VALUE,(LPSECURITY_ATTRIBUTES) NULL,
PAGE_READWRITE,0,sizeof(DPL_SHARED_CONNECT_BLOCK),pszObjectName);
if (hFileMap == NULL)
{
DPFERR("CreateFileMapping() failed");
dwError = GetLastError();
DNASSERT(FALSE);
return(DPNERR_GENERIC);
}
// Ensure it existed already
dwError = GetLastError();
if (dwError != ERROR_ALREADY_EXISTS)
{
DPFERR("File mapping did not already exist");
// DNASSERT(FALSE);
DNCloseHandle(hFileMap);
return(DPNERR_GENERIC);
}
// Map file
pSharedBlock = reinterpret_cast<DPL_SHARED_CONNECT_BLOCK*>(MapViewOfFile(HANDLE_FROM_DNHANDLE(hFileMap),FILE_MAP_ALL_ACCESS,0,0,0));
if (pSharedBlock == NULL)
{
DPFERR("MapViewOfFile() failed");
dwError = GetLastError();
DNASSERT(FALSE);
DNCloseHandle(hFileMap);
return(DPNERR_GENERIC);
}
// Try to open connection event
*pszObjectName = DPL_MSGQ_OBJECT_IDCHAR_EVENT;
hSyncEvent = DNOpenEvent(EVENT_MODIFY_STATE,FALSE,pszObjectName);
if (hSyncEvent == NULL)
{
DPFERR("OpenEvent() failed");
dwError = GetLastError();
DNASSERT(FALSE);
UnmapViewOfFile(pSharedBlock);
DNCloseHandle(hFileMap);
return(DPNERR_GENERIC);
}
DPFX(DPFPREP, 5,"Opened sync event");
DNResetEvent(pdpLobbyObject->hConnectEvent);
// Look for lobby launch -- set lobby launch value if connection is received
pdpLobbyObject->dwFlags |= DPL_OBJECT_FLAG_LOOKINGFORLOBBYLAUNCH;
// Make application available for connection by lobby client
DNASSERT(pdpLobbyObject->pReceiveQueue != NULL);
// Signal lobby client
pSharedBlock->dwPID = pdpLobbyObject->dwPID;
DNSetEvent(hSyncEvent);
dwReturnValue = DNWaitForSingleObject(pdpLobbyObject->hConnectEvent,DPL_LOBBYLAUNCHED_CONNECT_TIMEOUT);
// Turn off the looking for lobby launch flag
pdpLobbyObject->dwFlags &= ~(DPL_OBJECT_FLAG_LOOKINGFORLOBBYLAUNCH);
if (dwReturnValue == WAIT_OBJECT_0)
{
hResultCode = DPN_OK;
}
else
{
hResultCode = DPNERR_TIMEDOUT;
}
// Clean up
DNCloseHandle(hSyncEvent);
UnmapViewOfFile(pSharedBlock);
DNCloseHandle(hFileMap);
DPFX(DPFPREP, 3,"Returning: [0x%lx]",hResultCode);
return(hResultCode);
}
//------------------------------------------------------------------------