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wine/dlls/dplayx/dplay.c

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  1 /* Direct Play 2,3,4 Implementation
  2  *
  3  * Copyright 1998,1999,2000,2001 - Peter Hunnisett
  4  *
  5  * This library is free software; you can redistribute it and/or
  6  * modify it under the terms of the GNU Lesser General Public
  7  * License as published by the Free Software Foundation; either
  8  * version 2.1 of the License, or (at your option) any later version.
  9  *
 10  * This library is distributed in the hope that it will be useful,
 11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 13  * Lesser General Public License for more details.
 14  *
 15  * You should have received a copy of the GNU Lesser General Public
 16  * License along with this library; if not, write to the Free Software
 17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 18  */
 19 
 20 #include "config.h"
 21 #include "wine/port.h"
 22 
 23 #include <stdarg.h>
 24 #include <string.h>
 25 
 26 #define NONAMELESSUNION
 27 #define NONAMELESSSTRUCT
 28 #include "windef.h"
 29 #include "winerror.h"
 30 #include "winbase.h"
 31 #include "winnt.h"
 32 #include "winreg.h"
 33 #include "winnls.h"
 34 #include "wine/unicode.h"
 35 #include "wine/debug.h"
 36 
 37 #include "dpinit.h"
 38 #include "dplayx_global.h"
 39 #include "name_server.h"
 40 #include "dplayx_queue.h"
 41 #include "dplaysp.h"
 42 #include "dplay_global.h"
 43 
 44 WINE_DEFAULT_DEBUG_CHANNEL(dplay);
 45 
 46 /* FIXME: Should this be externed? */
 47 extern HRESULT DPL_CreateCompoundAddress
 48 ( LPCDPCOMPOUNDADDRESSELEMENT lpElements, DWORD dwElementCount,
 49   LPVOID lpAddress, LPDWORD lpdwAddressSize, BOOL bAnsiInterface );
 50 
 51 
 52 /* Local function prototypes */
 53 static lpPlayerList DP_FindPlayer( IDirectPlay2AImpl* This, DPID dpid );
 54 static lpPlayerData DP_CreatePlayer( IDirectPlay2Impl* iface, LPDPID lpid,
 55                                      LPDPNAME lpName, DWORD dwFlags,
 56                                      HANDLE hEvent, BOOL bAnsi );
 57 static BOOL DP_CopyDPNAMEStruct( LPDPNAME lpDst, const DPNAME *lpSrc, BOOL bAnsi );
 58 static void DP_SetPlayerData( lpPlayerData lpPData, DWORD dwFlags,
 59                               LPVOID lpData, DWORD dwDataSize );
 60 
 61 static lpGroupData DP_CreateGroup( IDirectPlay2AImpl* iface, const DPID *lpid,
 62                                    const DPNAME *lpName, DWORD dwFlags,
 63                                    DPID idParent, BOOL bAnsi );
 64 static void DP_SetGroupData( lpGroupData lpGData, DWORD dwFlags,
 65                              LPVOID lpData, DWORD dwDataSize );
 66 static void DP_DeleteDPNameStruct( LPDPNAME lpDPName );
 67 static void DP_DeletePlayer( IDirectPlay2Impl* This, DPID dpid );
 68 static BOOL CALLBACK cbDeletePlayerFromAllGroups( DPID dpId,
 69                                                   DWORD dwPlayerType,
 70                                                   LPCDPNAME lpName,
 71                                                   DWORD dwFlags,
 72                                                   LPVOID lpContext );
 73 static lpGroupData DP_FindAnyGroup( IDirectPlay2AImpl* This, DPID dpid );
 74 static BOOL CALLBACK cbRemoveGroupOrPlayer( DPID dpId, DWORD dwPlayerType,
 75                                             LPCDPNAME lpName, DWORD dwFlags,
 76                                             LPVOID lpContext );
 77 static void DP_DeleteGroup( IDirectPlay2Impl* This, DPID dpid );
 78 
 79 /* Forward declarations of virtual tables */
 80 static const IDirectPlay2Vtbl directPlay2AVT;
 81 static const IDirectPlay3Vtbl directPlay3AVT;
 82 static const IDirectPlay4Vtbl directPlay4AVT;
 83 
 84 static const IDirectPlay2Vtbl directPlay2WVT;
 85 static const IDirectPlay3Vtbl directPlay3WVT;
 86 static const IDirectPlay4Vtbl directPlay4WVT;
 87 
 88 /* Helper methods for player/group interfaces */
 89 static HRESULT WINAPI DP_IF_DeletePlayerFromGroup
 90           ( IDirectPlay2Impl* This, LPVOID lpMsgHdr, DPID idGroup,
 91             DPID idPlayer, BOOL bAnsi );
 92 static HRESULT WINAPI DP_IF_CreatePlayer
 93           ( IDirectPlay2Impl* This, LPVOID lpMsgHdr, LPDPID lpidPlayer,
 94             LPDPNAME lpPlayerName, HANDLE hEvent, LPVOID lpData,
 95             DWORD dwDataSize, DWORD dwFlags, BOOL bAnsi );
 96 static HRESULT WINAPI DP_IF_DestroyGroup
 97           ( IDirectPlay2Impl* This, LPVOID lpMsgHdr, DPID idGroup, BOOL bAnsi );
 98 static HRESULT WINAPI DP_IF_DestroyPlayer
 99           ( IDirectPlay2Impl* This, LPVOID lpMsgHdr, DPID idPlayer, BOOL bAnsi );
100 static HRESULT WINAPI DP_IF_EnumGroupPlayers
101           ( IDirectPlay2Impl* This, DPID idGroup, LPGUID lpguidInstance,
102             LPDPENUMPLAYERSCALLBACK2 lpEnumPlayersCallback2,
103             LPVOID lpContext, DWORD dwFlags, BOOL bAnsi );
104 static HRESULT WINAPI DP_IF_EnumGroups
105           ( IDirectPlay2Impl* This, LPGUID lpguidInstance,
106             LPDPENUMPLAYERSCALLBACK2 lpEnumPlayersCallback2,
107             LPVOID lpContext, DWORD dwFlags, BOOL bAnsi );
108 static HRESULT WINAPI DP_IF_EnumPlayers
109           ( IDirectPlay2Impl* This, LPGUID lpguidInstance,
110             LPDPENUMPLAYERSCALLBACK2 lpEnumPlayersCallback2,
111             LPVOID lpContext, DWORD dwFlags, BOOL bAnsi );
112 static HRESULT WINAPI DP_IF_GetGroupData
113           ( IDirectPlay2Impl* This, DPID idGroup, LPVOID lpData,
114             LPDWORD lpdwDataSize, DWORD dwFlags, BOOL bAnsi );
115 static HRESULT WINAPI DP_IF_GetGroupName
116           ( IDirectPlay2Impl* This, DPID idGroup, LPVOID lpData,
117             LPDWORD lpdwDataSize, BOOL bAnsi );
118 static HRESULT WINAPI DP_IF_GetPlayerData
119           ( IDirectPlay2Impl* This, DPID idPlayer, LPVOID lpData,
120             LPDWORD lpdwDataSize, DWORD dwFlags, BOOL bAnsi );
121 static HRESULT WINAPI DP_IF_GetPlayerName
122           ( IDirectPlay2Impl* This, DPID idPlayer, LPVOID lpData,
123             LPDWORD lpdwDataSize, BOOL bAnsi );
124 static HRESULT WINAPI DP_IF_SetGroupName
125           ( IDirectPlay2Impl* This, DPID idGroup, LPDPNAME lpGroupName,
126             DWORD dwFlags, BOOL bAnsi );
127 static HRESULT WINAPI DP_IF_SetPlayerData
128           ( IDirectPlay2Impl* This, DPID idPlayer, LPVOID lpData,
129             DWORD dwDataSize, DWORD dwFlags, BOOL bAnsi );
130 static HRESULT WINAPI DP_IF_SetPlayerName
131           ( IDirectPlay2Impl* This, DPID idPlayer, LPDPNAME lpPlayerName,
132             DWORD dwFlags, BOOL bAnsi );
133 static HRESULT WINAPI DP_IF_AddGroupToGroup
134           ( IDirectPlay3Impl* This, DPID idParentGroup, DPID idGroup );
135 static HRESULT WINAPI DP_IF_CreateGroup
136           ( IDirectPlay2AImpl* This, LPVOID lpMsgHdr, LPDPID lpidGroup,
137             LPDPNAME lpGroupName, LPVOID lpData, DWORD dwDataSize,
138             DWORD dwFlags, BOOL bAnsi );
139 static HRESULT WINAPI DP_IF_CreateGroupInGroup
140           ( IDirectPlay3Impl* This, LPVOID lpMsgHdr, DPID idParentGroup,
141             LPDPID lpidGroup, LPDPNAME lpGroupName, LPVOID lpData,
142             DWORD dwDataSize, DWORD dwFlags, BOOL bAnsi );
143 static HRESULT WINAPI DP_IF_AddPlayerToGroup
144           ( IDirectPlay2Impl* This, LPVOID lpMsgHdr, DPID idGroup,
145             DPID idPlayer, BOOL bAnsi );
146 static HRESULT WINAPI DP_IF_DeleteGroupFromGroup
147           ( IDirectPlay3Impl* This, DPID idParentGroup, DPID idGroup );
148 static HRESULT WINAPI DP_SetSessionDesc
149           ( IDirectPlay2Impl* This, LPCDPSESSIONDESC2 lpSessDesc,
150             DWORD dwFlags, BOOL bInitial, BOOL bAnsi  );
151 static HRESULT WINAPI DP_SecureOpen
152           ( IDirectPlay2Impl* This, LPCDPSESSIONDESC2 lpsd, DWORD dwFlags,
153             LPCDPSECURITYDESC lpSecurity, LPCDPCREDENTIALS lpCredentials,
154             BOOL bAnsi );
155 static HRESULT WINAPI DP_SendEx
156           ( IDirectPlay2Impl* This, DPID idFrom, DPID idTo, DWORD dwFlags,
157             LPVOID lpData, DWORD dwDataSize, DWORD dwPriority, DWORD dwTimeout,
158             LPVOID lpContext, LPDWORD lpdwMsgID, BOOL bAnsi );
159 static HRESULT WINAPI DP_IF_Receive
160           ( IDirectPlay2Impl* This, LPDPID lpidFrom, LPDPID lpidTo,
161             DWORD dwFlags, LPVOID lpData, LPDWORD lpdwDataSize, BOOL bAnsi );
162 static HRESULT WINAPI DP_IF_GetMessageQueue
163           ( IDirectPlay4Impl* This, DPID idFrom, DPID idTo, DWORD dwFlags,
164             LPDWORD lpdwNumMsgs, LPDWORD lpdwNumBytes, BOOL bAnsi );
165 static HRESULT WINAPI DP_SP_SendEx
166           ( IDirectPlay2Impl* This, DWORD dwFlags,
167             LPVOID lpData, DWORD dwDataSize, DWORD dwPriority, DWORD dwTimeout,
168             LPVOID lpContext, LPDWORD lpdwMsgID );
169 static HRESULT WINAPI DP_IF_SetGroupData
170           ( IDirectPlay2Impl* This, DPID idGroup, LPVOID lpData,
171             DWORD dwDataSize, DWORD dwFlags, BOOL bAnsi );
172 static HRESULT WINAPI DP_IF_GetPlayerCaps
173           ( IDirectPlay2Impl* This, DPID idPlayer, LPDPCAPS lpDPCaps,
174             DWORD dwFlags );
175 static HRESULT WINAPI DP_IF_Close( IDirectPlay2Impl* This, BOOL bAnsi );
176 static HRESULT WINAPI DP_IF_CancelMessage
177           ( IDirectPlay4Impl* This, DWORD dwMsgID, DWORD dwFlags,
178             DWORD dwMinPriority, DWORD dwMaxPriority, BOOL bAnsi );
179 static HRESULT WINAPI DP_IF_EnumGroupsInGroup
180           ( IDirectPlay3AImpl* This, DPID idGroup, LPGUID lpguidInstance,
181             LPDPENUMPLAYERSCALLBACK2 lpEnumPlayersCallback2,
182             LPVOID lpContext, DWORD dwFlags, BOOL bAnsi );
183 static HRESULT WINAPI DP_IF_GetGroupParent
184           ( IDirectPlay3AImpl* This, DPID idGroup, LPDPID lpidGroup,
185             BOOL bAnsi );
186 static HRESULT WINAPI DP_IF_GetCaps
187           ( IDirectPlay2Impl* This, LPDPCAPS lpDPCaps, DWORD dwFlags );
188 static HRESULT WINAPI DP_IF_EnumSessions
189           ( IDirectPlay2Impl* This, LPDPSESSIONDESC2 lpsd, DWORD dwTimeout,
190             LPDPENUMSESSIONSCALLBACK2 lpEnumSessionsCallback2,
191             LPVOID lpContext, DWORD dwFlags, BOOL bAnsi );
192 static HRESULT WINAPI DP_IF_InitializeConnection
193           ( IDirectPlay3Impl* This, LPVOID lpConnection, DWORD dwFlags, BOOL bAnsi );
194 static BOOL CALLBACK cbDPCreateEnumConnections( LPCGUID lpguidSP,
195     LPVOID lpConnection, DWORD dwConnectionSize, LPCDPNAME lpName,
196     DWORD dwFlags, LPVOID lpContext );
197 static BOOL WINAPI DP_BuildSPCompoundAddr( LPGUID lpcSpGuid, LPVOID* lplpAddrBuf,
198                                            LPDWORD lpdwBufSize );
199 
200 
201 
202 static inline DPID DP_NextObjectId(void);
203 static DPID DP_GetRemoteNextObjectId(void);
204 
205 
206 static void DP_CopySessionDesc( LPDPSESSIONDESC2 destSessionDesc,
207                                 LPCDPSESSIONDESC2 srcSessDesc, BOOL bAnsi );
208 
209 
210 static HMODULE DP_LoadSP( LPCGUID lpcGuid, LPSPINITDATA lpSpData, LPBOOL lpbIsDpSp );
211 static HRESULT DP_InitializeDPSP( IDirectPlay3Impl* This, HMODULE hServiceProvider );
212 static HRESULT DP_InitializeDPLSP( IDirectPlay3Impl* This, HMODULE hServiceProvider );
213 
214 
215 
216 
217 
218 
219 #define DPID_NOPARENT_GROUP 0 /* Magic number to indicate no parent of group */
220 #define DPID_SYSTEM_GROUP DPID_NOPARENT_GROUP /* If system group is supported
221                                                  we don't have to change much */
222 #define DPID_NAME_SERVER 0x19a9d65b  /* Don't ask me why */
223 
224 /* Strip out dwFlag values which cannot be sent in the CREATEGROUP msg */
225 #define DPMSG_CREATEGROUP_DWFLAGS(x) ( (x) & DPGROUP_HIDDEN )
226 
227 /* Strip out all dwFlags values for CREATEPLAYER msg */
228 #define DPMSG_CREATEPLAYER_DWFLAGS(x) 0
229 
230 static LONG kludgePlayerGroupId = 1000;
231 
232 /* ------------------------------------------------------------------ */
233 
234 
235 static BOOL DP_CreateIUnknown( LPVOID lpDP )
236 {
237   IDirectPlay2AImpl *This = (IDirectPlay2AImpl *)lpDP;
238 
239   This->unk = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof( *(This->unk) ) );
240   if ( This->unk == NULL )
241   {
242     return FALSE;
243   }
244 
245   InitializeCriticalSection( &This->unk->DP_lock );
246   This->unk->DP_lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": IDirectPlay2AImpl*->DirectPlayIUnknownData*->DP_lock");
247 
248   return TRUE;
249 }
250 
251 static BOOL DP_DestroyIUnknown( LPVOID lpDP )
252 {
253   IDirectPlay2AImpl *This = (IDirectPlay2AImpl *)lpDP;
254 
255   This->unk->DP_lock.DebugInfo->Spare[0] = 0;
256   DeleteCriticalSection( &This->unk->DP_lock );
257   HeapFree( GetProcessHeap(), 0, This->unk );
258 
259   return TRUE;
260 }
261 
262 static BOOL DP_CreateDirectPlay2( LPVOID lpDP )
263 {
264   IDirectPlay2AImpl *This = (IDirectPlay2AImpl *)lpDP;
265 
266   This->dp2 = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof( *(This->dp2) ) );
267   if ( This->dp2 == NULL )
268   {
269     return FALSE;
270   }
271 
272   This->dp2->bConnectionOpen = FALSE;
273 
274   This->dp2->hEnumSessionThread = INVALID_HANDLE_VALUE;
275   This->dp2->dwEnumSessionLock = 0;
276 
277   This->dp2->bHostInterface = FALSE;
278 
279   DPQ_INIT(This->dp2->receiveMsgs);
280   DPQ_INIT(This->dp2->sendMsgs);
281   DPQ_INIT(This->dp2->replysExpected);
282 
283   if( !NS_InitializeSessionCache( &This->dp2->lpNameServerData ) )
284   {
285     /* FIXME: Memory leak */
286     return FALSE;
287   }
288 
289   /* Provide an initial session desc with nothing in it */
290   This->dp2->lpSessionDesc = HeapAlloc( GetProcessHeap(),
291                                         HEAP_ZERO_MEMORY,
292                                         sizeof( *This->dp2->lpSessionDesc ) );
293   if( This->dp2->lpSessionDesc == NULL )
294   {
295     /* FIXME: Memory leak */
296     return FALSE;
297   }
298   This->dp2->lpSessionDesc->dwSize = sizeof( *This->dp2->lpSessionDesc );
299 
300   /* We are emulating a dp 6 implementation */
301   This->dp2->spData.dwSPVersion = DPSP_MAJORVERSION;
302 
303   This->dp2->spData.lpCB = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY,
304                                       sizeof( *This->dp2->spData.lpCB ) );
305   This->dp2->spData.lpCB->dwSize = sizeof( *This->dp2->spData.lpCB );
306   This->dp2->spData.lpCB->dwVersion = DPSP_MAJORVERSION;
307 
308   /* This is the pointer to the service provider */
309   if( FAILED( DPSP_CreateInterface( &IID_IDirectPlaySP,
310                                     (LPVOID*)&This->dp2->spData.lpISP, This ) )
311     )
312   {
313     /* FIXME: Memory leak */
314     return FALSE;
315   }
316 
317   /* Setup lobby provider information */
318   This->dp2->dplspData.dwSPVersion = DPSP_MAJORVERSION;
319   This->dp2->dplspData.lpCB = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY,
320                                          sizeof( *This->dp2->dplspData.lpCB ) );
321   This->dp2->dplspData.lpCB->dwSize = sizeof(  *This->dp2->dplspData.lpCB );
322 
323   if( FAILED( DPLSP_CreateInterface( &IID_IDPLobbySP,
324                                      (LPVOID*)&This->dp2->dplspData.lpISP, This ) )
325     )
326   {
327     /* FIXME: Memory leak */
328     return FALSE;
329   }
330 
331   return TRUE;
332 }
333 
334 /* Definition of the global function in dplayx_queue.h. #
335  * FIXME: Would it be better to have a dplayx_queue.c for this function? */
336 DPQ_DECL_DELETECB( cbDeleteElemFromHeap, LPVOID )
337 {
338   HeapFree( GetProcessHeap(), 0, elem );
339 }
340 
341 /* Function to delete the list of groups with this interface. Needs to
342  * delete the group and player lists associated with this group as well
343  * as the group data associated with this group. It should not delete
344  * player data as that is shared with the top player list and will be
345  * deleted with that.
346  */
347 DPQ_DECL_DELETECB( cbDeleteGroupsElem, lpGroupList );
348 DPQ_DECL_DELETECB( cbDeleteGroupsElem, lpGroupList )
349 {
350   DPQ_DELETEQ( elem->lpGData->groups, groups,
351                lpGroupList, cbDeleteElemFromHeap );
352   DPQ_DELETEQ( elem->lpGData->players, players,
353                lpPlayerList, cbDeleteElemFromHeap );
354   HeapFree( GetProcessHeap(), 0, elem->lpGData );
355   HeapFree( GetProcessHeap(), 0, elem );
356 }
357 
358 /* Function to delete the list of players with this interface. Needs to
359  * delete the player data for all players as well.
360  */
361 DPQ_DECL_DELETECB( cbDeletePlayerElem, lpPlayerList );
362 DPQ_DECL_DELETECB( cbDeletePlayerElem, lpPlayerList )
363 {
364   HeapFree( GetProcessHeap(), 0, elem->lpPData );
365   HeapFree( GetProcessHeap(), 0, elem );
366 }
367 
368 static BOOL DP_DestroyDirectPlay2( LPVOID lpDP )
369 {
370   IDirectPlay2AImpl *This = (IDirectPlay2AImpl *)lpDP;
371 
372   if( This->dp2->hEnumSessionThread != INVALID_HANDLE_VALUE )
373   {
374     TerminateThread( This->dp2->hEnumSessionThread, 0 );
375     CloseHandle( This->dp2->hEnumSessionThread );
376   }
377 
378   /* Finish with the SP - have it shutdown */
379   if( This->dp2->spData.lpCB->ShutdownEx )
380   {
381     DPSP_SHUTDOWNDATA data;
382 
383     TRACE( "Calling SP ShutdownEx\n" );
384 
385     data.lpISP = This->dp2->spData.lpISP;
386 
387     (*This->dp2->spData.lpCB->ShutdownEx)( &data );
388   }
389   else if (This->dp2->spData.lpCB->Shutdown ) /* obsolete interface */
390   {
391     TRACE( "Calling obsolete SP Shutdown\n" );
392     (*This->dp2->spData.lpCB->Shutdown)();
393   }
394 
395   /* Unload the SP (if it exists) */
396   if( This->dp2->hServiceProvider != 0 )
397   {
398     FreeLibrary( This->dp2->hServiceProvider );
399   }
400 
401   /* Unload the Lobby Provider (if it exists) */
402   if( This->dp2->hDPLobbyProvider != 0 )
403   {
404     FreeLibrary( This->dp2->hDPLobbyProvider );
405   }
406 
407 #if 0
408   DPQ_DELETEQ( This->dp2->players, players, lpPlayerList, cbDeletePlayerElem );
409   DPQ_DELETEQ( This->dp2->groups, groups, lpGroupList, cbDeleteGroupsElem );
410 #endif
411 
412   /* FIXME: Need to delete receive and send msgs queue contents */
413 
414   NS_DeleteSessionCache( This->dp2->lpNameServerData );
415 
416   HeapFree( GetProcessHeap(), 0, This->dp2->lpSessionDesc );
417 
418   IDirectPlaySP_Release( This->dp2->spData.lpISP );
419 
420   /* Delete the contents */
421   HeapFree( GetProcessHeap(), 0, This->dp2 );
422 
423   return TRUE;
424 }
425 
426 static BOOL DP_CreateDirectPlay3( LPVOID lpDP )
427 {
428   IDirectPlay3AImpl *This = (IDirectPlay3AImpl *)lpDP;
429 
430   This->dp3 = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof( *(This->dp3) ) );
431   if ( This->dp3 == NULL )
432   {
433     return FALSE;
434   }
435 
436   return TRUE;
437 }
438 
439 static BOOL DP_DestroyDirectPlay3( LPVOID lpDP )
440 {
441   IDirectPlay3AImpl *This = (IDirectPlay3AImpl *)lpDP;
442 
443   /* Delete the contents */
444   HeapFree( GetProcessHeap(), 0, This->dp3 );
445 
446   return TRUE;
447 }
448 
449 static BOOL DP_CreateDirectPlay4( LPVOID lpDP )
450 {
451   IDirectPlay4AImpl *This = (IDirectPlay4AImpl *)lpDP;
452 
453   This->dp4 = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof( *(This->dp4) ) );
454   if ( This->dp4 == NULL )
455   {
456     return FALSE;
457   }
458 
459   return TRUE;
460 }
461 
462 static BOOL DP_DestroyDirectPlay4( LPVOID lpDP )
463 {
464   IDirectPlay3AImpl *This = (IDirectPlay3AImpl *)lpDP;
465 
466   /* Delete the contents */
467   HeapFree( GetProcessHeap(), 0, This->dp4 );
468 
469   return TRUE;
470 }
471 
472 
473 /* Create a new interface */
474 HRESULT DP_CreateInterface
475          ( REFIID riid, LPVOID* ppvObj )
476 {
477   TRACE( " for %s\n", debugstr_guid( riid ) );
478 
479   *ppvObj = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY,
480                        sizeof( IDirectPlay2Impl ) );
481 
482   if( *ppvObj == NULL )
483   {
484     return DPERR_OUTOFMEMORY;
485   }
486 
487   if( IsEqualGUID( &IID_IDirectPlay2, riid ) )
488   {
489     IDirectPlay2Impl *This = (IDirectPlay2Impl *)*ppvObj;
490     This->lpVtbl = &directPlay2WVT;
491   }
492   else if( IsEqualGUID( &IID_IDirectPlay2A, riid ) )
493   {
494     IDirectPlay2AImpl *This = (IDirectPlay2AImpl *)*ppvObj;
495     This->lpVtbl = &directPlay2AVT;
496   }
497   else if( IsEqualGUID( &IID_IDirectPlay3, riid ) )
498   {
499     IDirectPlay3Impl *This = (IDirectPlay3Impl *)*ppvObj;
500     This->lpVtbl = &directPlay3WVT;
501   }
502   else if( IsEqualGUID( &IID_IDirectPlay3A, riid ) )
503   {
504     IDirectPlay3AImpl *This = (IDirectPlay3AImpl *)*ppvObj;
505     This->lpVtbl = &directPlay3AVT;
506   }
507   else if( IsEqualGUID( &IID_IDirectPlay4, riid ) )
508   {
509     IDirectPlay4Impl *This = (IDirectPlay4Impl *)*ppvObj;
510     This->lpVtbl = &directPlay4WVT;
511   }
512   else if( IsEqualGUID( &IID_IDirectPlay4A, riid ) )
513   {
514     IDirectPlay4AImpl *This = (IDirectPlay4AImpl *)*ppvObj;
515     This->lpVtbl = &directPlay4AVT;
516   }
517   else
518   {
519     /* Unsupported interface */
520     HeapFree( GetProcessHeap(), 0, *ppvObj );
521     *ppvObj = NULL;
522 
523     return E_NOINTERFACE;
524   }
525 
526   /* Initialize it */
527   if ( DP_CreateIUnknown( *ppvObj ) &&
528        DP_CreateDirectPlay2( *ppvObj ) &&
529        DP_CreateDirectPlay3( *ppvObj ) &&
530        DP_CreateDirectPlay4( *ppvObj )
531      )
532   {
533     IDirectPlayX_AddRef( (LPDIRECTPLAY2A)*ppvObj );
534 
535     return S_OK;
536   }
537 
538   /* Initialize failed, destroy it */
539   DP_DestroyDirectPlay4( *ppvObj );
540   DP_DestroyDirectPlay3( *ppvObj );
541   DP_DestroyDirectPlay2( *ppvObj );
542   DP_DestroyIUnknown( *ppvObj );
543 
544   HeapFree( GetProcessHeap(), 0, *ppvObj );
545 
546   *ppvObj = NULL;
547   return DPERR_NOMEMORY;
548 }
549 
550 
551 /* Direct Play methods */
552 
553 /* Shared between all dplay types */
554 static HRESULT WINAPI DP_QueryInterface
555          ( LPDIRECTPLAY2 iface, REFIID riid, LPVOID* ppvObj )
556 {
557   IDirectPlay2Impl *This = (IDirectPlay2Impl *)iface;
558   TRACE("(%p)->(%s,%p)\n", This, debugstr_guid( riid ), ppvObj );
559 
560   *ppvObj = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY,
561                        sizeof( *This ) );
562 
563   if( *ppvObj == NULL )
564   {
565     return DPERR_OUTOFMEMORY;
566   }
567 
568   CopyMemory( *ppvObj, This, sizeof( *This )  );
569   (*(IDirectPlay2Impl**)ppvObj)->ulInterfaceRef = 0;
570 
571   if( IsEqualGUID( &IID_IDirectPlay2, riid ) )
572   {
573     IDirectPlay2Impl *This = (IDirectPlay2Impl *)*ppvObj;
574     This->lpVtbl = &directPlay2WVT;
575   }
576   else if( IsEqualGUID( &IID_IDirectPlay2A, riid ) )
577   {
578     IDirectPlay2AImpl *This = (IDirectPlay2AImpl *)*ppvObj;
579     This->lpVtbl = &directPlay2AVT;
580   }
581   else if( IsEqualGUID( &IID_IDirectPlay3, riid ) )
582   {
583     IDirectPlay3Impl *This = (IDirectPlay3Impl *)*ppvObj;
584     This->lpVtbl = &directPlay3WVT;
585   }
586   else if( IsEqualGUID( &IID_IDirectPlay3A, riid ) )
587   {
588     IDirectPlay3AImpl *This = (IDirectPlay3AImpl *)*ppvObj;
589     This->lpVtbl = &directPlay3AVT;
590   }
591   else if( IsEqualGUID( &IID_IDirectPlay4, riid ) )
592   {
593     IDirectPlay4Impl *This = (IDirectPlay4Impl *)*ppvObj;
594     This->lpVtbl = &directPlay4WVT;
595   }
596   else if( IsEqualGUID( &IID_IDirectPlay4A, riid ) )
597   {
598     IDirectPlay4AImpl *This = (IDirectPlay4AImpl *)*ppvObj;
599     This->lpVtbl = &directPlay4AVT;
600   }
601   else
602   {
603     /* Unsupported interface */
604     HeapFree( GetProcessHeap(), 0, *ppvObj );
605     *ppvObj = NULL;
606 
607     return E_NOINTERFACE;
608   }
609 
610   IDirectPlayX_AddRef( (LPDIRECTPLAY2)*ppvObj );
611 
612   return S_OK;
613 }
614 
615 /* Shared between all dplay types */
616 static ULONG WINAPI DP_AddRef
617          ( LPDIRECTPLAY3 iface )
618 {
619   ULONG ulInterfaceRefCount, ulObjRefCount;
620   IDirectPlay3Impl *This = (IDirectPlay3Impl *)iface;
621 
622   ulObjRefCount       = InterlockedIncrement( &This->unk->ulObjRef );
623   ulInterfaceRefCount = InterlockedIncrement( &This->ulInterfaceRef );
624 
625   TRACE( "ref count incremented to %u:%u for %p\n",
626          ulInterfaceRefCount, ulObjRefCount, This );
627 
628   return ulObjRefCount;
629 }
630 
631 static ULONG WINAPI DP_Release
632 ( LPDIRECTPLAY3 iface )
633 {
634   ULONG ulInterfaceRefCount, ulObjRefCount;
635 
636   IDirectPlay3Impl *This = (IDirectPlay3Impl *)iface;
637 
638   ulObjRefCount       = InterlockedDecrement( &This->unk->ulObjRef );
639   ulInterfaceRefCount = InterlockedDecrement( &This->ulInterfaceRef );
640 
641   TRACE( "ref count decremented to %u:%u for %p\n",
642          ulInterfaceRefCount, ulObjRefCount, This );
643 
644   /* Deallocate if this is the last reference to the object */
645   if( ulObjRefCount == 0 )
646   {
647      /* If we're destroying the object, this must be the last ref
648         of the last interface */
649      DP_DestroyDirectPlay4( This );
650      DP_DestroyDirectPlay3( This );
651      DP_DestroyDirectPlay2( This );
652      DP_DestroyIUnknown( This );
653   }
654 
655   /* Deallocate the interface */
656   if( ulInterfaceRefCount == 0 )
657   {
658     HeapFree( GetProcessHeap(), 0, This );
659   }
660 
661   return ulObjRefCount;
662 }
663 
664 static inline DPID DP_NextObjectId(void)
665 {
666   return (DPID)InterlockedIncrement( &kludgePlayerGroupId );
667 }
668 
669 /* *lplpReply will be non NULL iff there is something to reply */
670 HRESULT DP_HandleMessage( IDirectPlay2Impl* This, LPCVOID lpcMessageBody,
671                           DWORD  dwMessageBodySize, LPCVOID lpcMessageHeader,
672                           WORD wCommandId, WORD wVersion,
673                           LPVOID* lplpReply, LPDWORD lpdwMsgSize )
674 {
675   TRACE( "(%p)->(%p,0x%08x,%p,%u,%u)\n",
676          This, lpcMessageBody, dwMessageBodySize, lpcMessageHeader, wCommandId,
677          wVersion );
678 
679   switch( wCommandId )
680   {
681     /* Name server needs to handle this request */
682     case DPMSGCMD_ENUMSESSIONSREQUEST:
683     {
684       /* Reply expected */
685       NS_ReplyToEnumSessionsRequest( lpcMessageBody, lplpReply, lpdwMsgSize, This );
686 
687       break;
688     }
689 
690     /* Name server needs to handle this request */
691     case DPMSGCMD_ENUMSESSIONSREPLY:
692     {
693       /* No reply expected */
694       NS_AddRemoteComputerAsNameServer( lpcMessageHeader,
695                                         This->dp2->spData.dwSPHeaderSize,
696                                         lpcMessageBody,
697                                         This->dp2->lpNameServerData );
698       break;
699     }
700 
701     case DPMSGCMD_REQUESTNEWPLAYERID:
702     {
703       LPCDPMSG_REQUESTNEWPLAYERID lpcMsg =
704         (LPCDPMSG_REQUESTNEWPLAYERID)lpcMessageBody;
705 
706       LPDPMSG_NEWPLAYERIDREPLY lpReply;
707 
708       *lpdwMsgSize = This->dp2->spData.dwSPHeaderSize + sizeof( *lpReply );
709 
710       *lplpReply = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, *lpdwMsgSize );
711 
712       FIXME( "Ignoring dwFlags 0x%08x in request msg\n",
713              lpcMsg->dwFlags );
714 
715       /* Setup the reply */
716       lpReply = (LPDPMSG_NEWPLAYERIDREPLY)( (BYTE*)(*lplpReply) +
717                                             This->dp2->spData.dwSPHeaderSize );
718 
719       lpReply->envelope.dwMagic    = DPMSGMAGIC_DPLAYMSG;
720       lpReply->envelope.wCommandId = DPMSGCMD_NEWPLAYERIDREPLY;
721       lpReply->envelope.wVersion   = DPMSGVER_DP6;
722 
723       lpReply->dpidNewPlayerId = DP_NextObjectId();
724 
725       TRACE( "Allocating new playerid 0x%08x from remote request\n",
726              lpReply->dpidNewPlayerId );
727 
728       break;
729     }
730 
731     case DPMSGCMD_GETNAMETABLEREPLY:
732     case DPMSGCMD_NEWPLAYERIDREPLY:
733     {
734 
735 #if 0
736       if( wCommandId == DPMSGCMD_NEWPLAYERIDREPLY )
737         DebugBreak();
738 #endif
739       DP_MSG_ReplyReceived( This, wCommandId, lpcMessageBody, dwMessageBodySize );
740 
741       break;
742     }
743 
744 #if 1
745     case DPMSGCMD_JUSTENVELOPE:
746     {
747       TRACE( "GOT THE SELF MESSAGE: %p -> 0x%08x\n", lpcMessageHeader, ((const DWORD *)lpcMessageHeader)[1] );
748       NS_SetLocalAddr( This->dp2->lpNameServerData, lpcMessageHeader, 20 );
749       DP_MSG_ReplyReceived( This, wCommandId, lpcMessageBody, dwMessageBodySize );
750     }
751 #endif
752 
753     case DPMSGCMD_FORWARDADDPLAYER:
754     {
755 #if 0
756       DebugBreak();
757 #endif
758 #if 1
759     TRACE( "Sending message to self to get my addr\n" );
760     DP_MSG_ToSelf( This, 1 ); /* This is a hack right now */
761 #endif
762       break;
763     }
764 
765     case DPMSGCMD_FORWARDADDPLAYERNACK:
766     {
767       DP_MSG_ErrorReceived( This, wCommandId, lpcMessageBody, dwMessageBodySize );
768       break;
769     }
770 
771     default:
772     {
773       FIXME( "Unknown wCommandId %u. Ignoring message\n", wCommandId );
774       DebugBreak();
775       break;
776     }
777   }
778 
779   /* FIXME: There is code in dplaysp.c to handle dplay commands. Move to here. */
780 
781   return DP_OK;
782 }
783 
784 
785 static HRESULT WINAPI DP_IF_AddPlayerToGroup
786           ( IDirectPlay2Impl* This, LPVOID lpMsgHdr, DPID idGroup,
787             DPID idPlayer, BOOL bAnsi )
788 {
789   lpGroupData  lpGData;
790   lpPlayerList lpPList;
791   lpPlayerList lpNewPList;
792 
793   TRACE( "(%p)->(%p,0x%08x,0x%08x,%u)\n",
794          This, lpMsgHdr, idGroup, idPlayer, bAnsi );
795 
796   /* Find the group */
797   if( ( lpGData = DP_FindAnyGroup( This, idGroup ) ) == NULL )
798   {
799     return DPERR_INVALIDGROUP;
800   }
801 
802   /* Find the player */
803   if( ( lpPList = DP_FindPlayer( This, idPlayer ) ) == NULL )
804   {
805     return DPERR_INVALIDPLAYER;
806   }
807 
808   /* Create a player list (ie "shortcut" ) */
809   lpNewPList = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof( *lpNewPList ) );
810   if( lpNewPList == NULL )
811   {
812     return DPERR_CANTADDPLAYER;
813   }
814 
815   /* Add the shortcut */
816   lpPList->lpPData->uRef++;
817   lpNewPList->lpPData = lpPList->lpPData;
818 
819   /* Add the player to the list of players for this group */
820   DPQ_INSERT(lpGData->players,lpNewPList,players);
821 
822   /* Let the SP know that we've added a player to the group */
823   if( This->dp2->spData.lpCB->AddPlayerToGroup )
824   {
825     DPSP_ADDPLAYERTOGROUPDATA data;
826 
827     TRACE( "Calling SP AddPlayerToGroup\n" );
828 
829     data.idPlayer = idPlayer;
830     data.idGroup  = idGroup;
831     data.lpISP    = This->dp2->spData.lpISP;
832 
833     (*This->dp2->spData.lpCB->AddPlayerToGroup)( &data );
834   }
835 
836   /* Inform all other peers of the addition of player to the group. If there are
837    * no peers keep this event quiet.
838    * Also, if this event was the result of another machine sending it to us,
839    * don't bother rebroadcasting it.
840    */
841   if( ( lpMsgHdr == NULL ) &&
842       This->dp2->lpSessionDesc &&
843       ( This->dp2->lpSessionDesc->dwFlags & DPSESSION_MULTICASTSERVER ) )
844   {
845     DPMSG_ADDPLAYERTOGROUP msg;
846     msg.dwType = DPSYS_ADDPLAYERTOGROUP;
847 
848     msg.dpIdGroup  = idGroup;
849     msg.dpIdPlayer = idPlayer;
850 
851     /* FIXME: Correct to just use send effectively? */
852     /* FIXME: Should size include data w/ message or just message "header" */
853     /* FIXME: Check return code */
854     DP_SendEx( This, DPID_SERVERPLAYER, DPID_ALLPLAYERS, 0, &msg, sizeof( msg ),               0, 0, NULL, NULL, bAnsi );
855   }
856 
857   return DP_OK;
858 }
859 
860 static HRESULT WINAPI DirectPlay2AImpl_AddPlayerToGroup
861           ( LPDIRECTPLAY2A iface, DPID idGroup, DPID idPlayer )
862 {
863   IDirectPlay2Impl *This = (IDirectPlay2Impl *)iface;
864   return DP_IF_AddPlayerToGroup( This, NULL, idGroup, idPlayer, TRUE );
865 }
866 
867 static HRESULT WINAPI DirectPlay2WImpl_AddPlayerToGroup
868           ( LPDIRECTPLAY2 iface, DPID idGroup, DPID idPlayer )
869 {
870   IDirectPlay2Impl *This = (IDirectPlay2Impl *)iface;
871   return DP_IF_AddPlayerToGroup( This, NULL, idGroup, idPlayer, FALSE );
872 }
873 
874 static HRESULT WINAPI DP_IF_Close( IDirectPlay2Impl* This, BOOL bAnsi )
875 {
876   HRESULT hr = DP_OK;
877 
878   TRACE("(%p)->(%u)\n", This, bAnsi );
879 
880   /* FIXME: Need to find a new host I assume (how?) */
881   /* FIXME: Need to destroy all local groups */
882   /* FIXME: Need to migrate all remotely visible players to the new host */
883