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ntdll/tests: FILE_OVERWRITE and FILE_OVERWRITE_IF aren't legal for NtCreateNamedPipeFile.
[wine/multimedia.git] / dlls / ole32 / rpc.c
blob35971e0e2bc9b527a60f7eb6a78e5c513734e310
1 /*
2 * RPC Manager
3 *
4 * Copyright 2001 Ove Kåven, TransGaming Technologies
5 * Copyright 2002 Marcus Meissner
6 * Copyright 2005 Mike Hearn, Rob Shearman for CodeWeavers
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 */
22
23 #include "config.h"
24 #include "wine/port.h"
25
26 #include <stdarg.h>
27 #include <string.h>
28
29 #define COBJMACROS
30 #define NONAMELESSUNION
31 #define NONAMELESSSTRUCT
32
33 #include "windef.h"
34 #include "winbase.h"
35 #include "winuser.h"
36 #include "winsvc.h"
37 #include "objbase.h"
38 #include "ole2.h"
39 #include "rpc.h"
40 #include "winerror.h"
41 #include "winreg.h"
42 #include "wine/unicode.h"
43
44 #include "compobj_private.h"
45
46 #include "wine/debug.h"
47
48 WINE_DEFAULT_DEBUG_CHANNEL(ole);
49
50 static void __RPC_STUB dispatch_rpc(RPC_MESSAGE *msg);
51
52 /* we only use one function to dispatch calls for all methods - we use the
53 * RPC_IF_OLE flag to tell the RPC runtime that this is the case */
54 static RPC_DISPATCH_FUNCTION rpc_dispatch_table[1] = { dispatch_rpc }; /* (RO) */
55 static RPC_DISPATCH_TABLE rpc_dispatch = { 1, rpc_dispatch_table }; /* (RO) */
56
57 static struct list registered_interfaces = LIST_INIT(registered_interfaces); /* (CS csRegIf) */
58 static CRITICAL_SECTION csRegIf;
59 static CRITICAL_SECTION_DEBUG csRegIf_debug =
60 {
61 0, 0, &csRegIf,
62 { &csRegIf_debug.ProcessLocksList, &csRegIf_debug.ProcessLocksList },
63 0, 0, { (DWORD_PTR)(__FILE__ ": dcom registered server interfaces") }
64 };
65 static CRITICAL_SECTION csRegIf = { &csRegIf_debug, -1, 0, 0, 0, 0 };
66
67 static struct list channel_hooks = LIST_INIT(channel_hooks); /* (CS csChannelHook) */
68 static CRITICAL_SECTION csChannelHook;
69 static CRITICAL_SECTION_DEBUG csChannelHook_debug =
70 {
71 0, 0, &csChannelHook,
72 { &csChannelHook_debug.ProcessLocksList, &csChannelHook_debug.ProcessLocksList },
73 0, 0, { (DWORD_PTR)(__FILE__ ": channel hooks") }
74 };
75 static CRITICAL_SECTION csChannelHook = { &csChannelHook_debug, -1, 0, 0, 0, 0 };
76
77 static WCHAR wszRpcTransport[] = {'n','c','a','l','r','p','c',0};
78
79
80 struct registered_if
81 {
82 struct list entry;
83 DWORD refs; /* ref count */
84 RPC_SERVER_INTERFACE If; /* interface registered with the RPC runtime */
85 };
86
87 /* get the pipe endpoint specified of the specified apartment */
88 static inline void get_rpc_endpoint(LPWSTR endpoint, const OXID *oxid)
89 {
90 /* FIXME: should get endpoint from rpcss */
91 static const WCHAR wszEndpointFormat[] = {'\\','p','i','p','e','\\','O','L','E','_','%','0','8','l','x','%','0','8','l','x',0};
92 wsprintfW(endpoint, wszEndpointFormat, (DWORD)(*oxid >> 32),(DWORD)*oxid);
93 }
94
95 typedef struct
96 {
97 const IRpcChannelBufferVtbl *lpVtbl;
98 LONG refs;
99 } RpcChannelBuffer;
100
101 typedef struct
102 {
103 RpcChannelBuffer super; /* superclass */
104
105 RPC_BINDING_HANDLE bind; /* handle to the remote server */
106 OXID oxid; /* apartment in which the channel is valid */
107 DWORD server_pid; /* id of server process */
108 DWORD dest_context; /* returned from GetDestCtx */
109 LPVOID dest_context_data; /* returned from GetDestCtx */
110 HANDLE event; /* cached event handle */
111 } ClientRpcChannelBuffer;
112
113 struct dispatch_params
114 {
115 RPCOLEMESSAGE *msg; /* message */
116 IRpcStubBuffer *stub; /* stub buffer, if applicable */
117 IRpcChannelBuffer *chan; /* server channel buffer, if applicable */
118 IID iid; /* ID of interface being called */
119 IUnknown *iface; /* interface being called */
120 HANDLE handle; /* handle that will become signaled when call finishes */
121 BOOL bypass_rpcrt; /* bypass RPC runtime? */
122 RPC_STATUS status; /* status (out) */
123 HRESULT hr; /* hresult (out) */
124 };
125
126 struct message_state
127 {
128 RPC_BINDING_HANDLE binding_handle;
129 ULONG prefix_data_len;
130 SChannelHookCallInfo channel_hook_info;
131 BOOL bypass_rpcrt;
132
133 /* client only */
134 HWND target_hwnd;
135 DWORD target_tid;
136 struct dispatch_params params;
137 };
138
139 typedef struct
140 {
141 ULONG conformance; /* NDR */
142 GUID id;
143 ULONG size;
144 /* [size_is((size+7)&~7)] */ unsigned char data[1];
145 } WIRE_ORPC_EXTENT;
146
147 typedef struct
148 {
149 ULONG size;
150 ULONG reserved;
151 unsigned char extent[1];
152 } WIRE_ORPC_EXTENT_ARRAY;
153
154 typedef struct
155 {
156 ULONG version;
157 ULONG flags;
158 ULONG reserved1;
159 GUID cid;
160 unsigned char extensions[1];
161 } WIRE_ORPCTHIS;
162
163 typedef struct
164 {
165 ULONG flags;
166 unsigned char extensions[1];
167 } WIRE_ORPCTHAT;
168
169 struct channel_hook_entry
170 {
171 struct list entry;
172 GUID id;
173 IChannelHook *hook;
174 };
175
176 struct channel_hook_buffer_data
177 {
178 GUID id;
179 ULONG extension_size;
180 };
181
182
183 static HRESULT unmarshal_ORPCTHAT(RPC_MESSAGE *msg, ORPCTHAT *orpcthat,
184 ORPC_EXTENT_ARRAY *orpc_ext_array, WIRE_ORPC_EXTENT **first_wire_orpc_extent);
185
186 /* Channel Hook Functions */
187
188 static ULONG ChannelHooks_ClientGetSize(SChannelHookCallInfo *info,
189 struct channel_hook_buffer_data **data, unsigned int *hook_count,
190 ULONG *extension_count)
191 {
192 struct channel_hook_entry *entry;
193 ULONG total_size = 0;
194 unsigned int hook_index = 0;
195
196 *hook_count = 0;
197 *extension_count = 0;
198
199 EnterCriticalSection(&csChannelHook);
200
201 LIST_FOR_EACH_ENTRY(entry, &channel_hooks, struct channel_hook_entry, entry)
202 (*hook_count)++;
203
204 if (*hook_count)
205 *data = HeapAlloc(GetProcessHeap(), 0, *hook_count * sizeof(struct channel_hook_buffer_data));
206 else
207 *data = NULL;
208
209 LIST_FOR_EACH_ENTRY(entry, &channel_hooks, struct channel_hook_entry, entry)
210 {
211 ULONG extension_size = 0;
212
213 IChannelHook_ClientGetSize(entry->hook, &entry->id, &info->iid, &extension_size);
214
215 TRACE("%s: extension_size = %u\n", debugstr_guid(&entry->id), extension_size);
216
217 extension_size = (extension_size+7)&~7;
218 (*data)[hook_index].id = entry->id;
219 (*data)[hook_index].extension_size = extension_size;
220
221 /* an extension is only put onto the wire if it has data to write */
222 if (extension_size)
223 {
224 total_size += FIELD_OFFSET(WIRE_ORPC_EXTENT, data[extension_size]);
225 (*extension_count)++;
226 }
227
228 hook_index++;
229 }
230
231 LeaveCriticalSection(&csChannelHook);
232
233 return total_size;
234 }
235
236 static unsigned char * ChannelHooks_ClientFillBuffer(SChannelHookCallInfo *info,
237 unsigned char *buffer, struct channel_hook_buffer_data *data,
238 unsigned int hook_count)
239 {
240 struct channel_hook_entry *entry;
241
242 EnterCriticalSection(&csChannelHook);
243
244 LIST_FOR_EACH_ENTRY(entry, &channel_hooks, struct channel_hook_entry, entry)
245 {
246 unsigned int i;
247 ULONG extension_size = 0;
248 WIRE_ORPC_EXTENT *wire_orpc_extent = (WIRE_ORPC_EXTENT *)buffer;
249
250 for (i = 0; i < hook_count; i++)
251 if (IsEqualGUID(&entry->id, &data[i].id))
252 extension_size = data[i].extension_size;
253
254 /* an extension is only put onto the wire if it has data to write */
255 if (!extension_size)
256 continue;
257
258 IChannelHook_ClientFillBuffer(entry->hook, &entry->id, &info->iid,
259 &extension_size, buffer + FIELD_OFFSET(WIRE_ORPC_EXTENT, data[0]));
260
261 TRACE("%s: extension_size = %u\n", debugstr_guid(&entry->id), extension_size);
262
263 /* FIXME: set unused portion of wire_orpc_extent->data to 0? */
264
265 wire_orpc_extent->conformance = (extension_size+7)&~7;
266 wire_orpc_extent->size = extension_size;
267 wire_orpc_extent->id = entry->id;
268 buffer += FIELD_OFFSET(WIRE_ORPC_EXTENT, data[wire_orpc_extent->conformance]);
269 }
270
271 LeaveCriticalSection(&csChannelHook);
272
273 return buffer;
274 }
275
276 static void ChannelHooks_ServerNotify(SChannelHookCallInfo *info,
277 DWORD lDataRep, WIRE_ORPC_EXTENT *first_wire_orpc_extent,
278 ULONG extension_count)
279 {
280 struct channel_hook_entry *entry;
281 ULONG i;
282
283 EnterCriticalSection(&csChannelHook);
284
285 LIST_FOR_EACH_ENTRY(entry, &channel_hooks, struct channel_hook_entry, entry)
286 {
287 WIRE_ORPC_EXTENT *wire_orpc_extent;
288 for (i = 0, wire_orpc_extent = first_wire_orpc_extent;
289 i < extension_count;
290 i++, wire_orpc_extent = (WIRE_ORPC_EXTENT *)&wire_orpc_extent->data[wire_orpc_extent->conformance])
291 {
292 if (IsEqualGUID(&entry->id, &wire_orpc_extent->id))
293 break;
294 }
295 if (i == extension_count) wire_orpc_extent = NULL;
296
297 IChannelHook_ServerNotify(entry->hook, &entry->id, &info->iid,
298 wire_orpc_extent ? wire_orpc_extent->size : 0,
299 wire_orpc_extent ? wire_orpc_extent->data : NULL,
300 lDataRep);
301 }
302
303 LeaveCriticalSection(&csChannelHook);
304 }
305
306 static ULONG ChannelHooks_ServerGetSize(SChannelHookCallInfo *info,
307 struct channel_hook_buffer_data **data, unsigned int *hook_count,
308 ULONG *extension_count)
309 {
310 struct channel_hook_entry *entry;
311 ULONG total_size = 0;
312 unsigned int hook_index = 0;
313
314 *hook_count = 0;
315 *extension_count = 0;
316
317 EnterCriticalSection(&csChannelHook);
318
319 LIST_FOR_EACH_ENTRY(entry, &channel_hooks, struct channel_hook_entry, entry)
320 (*hook_count)++;
321
322 if (*hook_count)
323 *data = HeapAlloc(GetProcessHeap(), 0, *hook_count * sizeof(struct channel_hook_buffer_data));
324 else
325 *data = NULL;
326
327 LIST_FOR_EACH_ENTRY(entry, &channel_hooks, struct channel_hook_entry, entry)
328 {
329 ULONG extension_size = 0;
330
331 IChannelHook_ServerGetSize(entry->hook, &entry->id, &info->iid, S_OK,
332 &extension_size);
333
334 TRACE("%s: extension_size = %u\n", debugstr_guid(&entry->id), extension_size);
335
336 extension_size = (extension_size+7)&~7;
337 (*data)[hook_index].id = entry->id;
338 (*data)[hook_index].extension_size = extension_size;
339
340 /* an extension is only put onto the wire if it has data to write */
341 if (extension_size)
342 {
343 total_size += FIELD_OFFSET(WIRE_ORPC_EXTENT, data[extension_size]);
344 (*extension_count)++;
345 }
346
347 hook_index++;
348 }
349
350 LeaveCriticalSection(&csChannelHook);
351
352 return total_size;
353 }
354
355 static unsigned char * ChannelHooks_ServerFillBuffer(SChannelHookCallInfo *info,
356 unsigned char *buffer, struct channel_hook_buffer_data *data,
357 unsigned int hook_count)
358 {
359 struct channel_hook_entry *entry;
360
361 EnterCriticalSection(&csChannelHook);
362
363 LIST_FOR_EACH_ENTRY(entry, &channel_hooks, struct channel_hook_entry, entry)
364 {
365 unsigned int i;
366 ULONG extension_size = 0;
367 WIRE_ORPC_EXTENT *wire_orpc_extent = (WIRE_ORPC_EXTENT *)buffer;
368
369 for (i = 0; i < hook_count; i++)
370 if (IsEqualGUID(&entry->id, &data[i].id))
371 extension_size = data[i].extension_size;
372
373 /* an extension is only put onto the wire if it has data to write */
374 if (!extension_size)
375 continue;
376
377 IChannelHook_ServerFillBuffer(entry->hook, &entry->id, &info->iid,
378 &extension_size, buffer + FIELD_OFFSET(WIRE_ORPC_EXTENT, data[0]),
379 S_OK);
380
381 TRACE("%s: extension_size = %u\n", debugstr_guid(&entry->id), extension_size);
382
383 /* FIXME: set unused portion of wire_orpc_extent->data to 0? */
384
385 wire_orpc_extent->conformance = (extension_size+7)&~7;
386 wire_orpc_extent->size = extension_size;
387 wire_orpc_extent->id = entry->id;
388 buffer += FIELD_OFFSET(WIRE_ORPC_EXTENT, data[wire_orpc_extent->conformance]);
389 }
390
391 LeaveCriticalSection(&csChannelHook);
392
393 return buffer;
394 }
395
396 static void ChannelHooks_ClientNotify(SChannelHookCallInfo *info,
397 DWORD lDataRep, WIRE_ORPC_EXTENT *first_wire_orpc_extent,
398 ULONG extension_count, HRESULT hrFault)
399 {
400 struct channel_hook_entry *entry;
401 ULONG i;
402
403 EnterCriticalSection(&csChannelHook);
404
405 LIST_FOR_EACH_ENTRY(entry, &channel_hooks, struct channel_hook_entry, entry)
406 {
407 WIRE_ORPC_EXTENT *wire_orpc_extent;
408 for (i = 0, wire_orpc_extent = first_wire_orpc_extent;
409 i < extension_count;
410 i++, wire_orpc_extent = (WIRE_ORPC_EXTENT *)&wire_orpc_extent->data[wire_orpc_extent->conformance])
411 {
412 if (IsEqualGUID(&entry->id, &wire_orpc_extent->id))
413 break;
414 }
415 if (i == extension_count) wire_orpc_extent = NULL;
416
417 IChannelHook_ClientNotify(entry->hook, &entry->id, &info->iid,
418 wire_orpc_extent ? wire_orpc_extent->size : 0,
419 wire_orpc_extent ? wire_orpc_extent->data : NULL,
420 lDataRep, hrFault);
421 }
422
423 LeaveCriticalSection(&csChannelHook);
424 }
425
426 HRESULT RPC_RegisterChannelHook(REFGUID rguid, IChannelHook *hook)
427 {
428 struct channel_hook_entry *entry;
429
430 TRACE("(%s, %p)\n", debugstr_guid(rguid), hook);
431
432 entry = HeapAlloc(GetProcessHeap(), 0, sizeof(*entry));
433 if (!entry)
434 return E_OUTOFMEMORY;
435
436 entry->id = *rguid;
437 entry->hook = hook;
438 IChannelHook_AddRef(hook);
439
440 EnterCriticalSection(&csChannelHook);
441 list_add_tail(&channel_hooks, &entry->entry);
442 LeaveCriticalSection(&csChannelHook);
443
444 return S_OK;
445 }
446
447 void RPC_UnregisterAllChannelHooks(void)
448 {
449 struct channel_hook_entry *cursor;
450 struct channel_hook_entry *cursor2;
451
452 EnterCriticalSection(&csChannelHook);
453 LIST_FOR_EACH_ENTRY_SAFE(cursor, cursor2, &channel_hooks, struct channel_hook_entry, entry)
454 HeapFree(GetProcessHeap(), 0, cursor);
455 LeaveCriticalSection(&csChannelHook);
456 }
457
458 /* RPC Channel Buffer Functions */
459
460 static HRESULT WINAPI RpcChannelBuffer_QueryInterface(LPRPCCHANNELBUFFER iface, REFIID riid, LPVOID *ppv)
461 {
462 *ppv = NULL;
463 if (IsEqualIID(riid,&IID_IRpcChannelBuffer) || IsEqualIID(riid,&IID_IUnknown))
464 {
465 *ppv = iface;
466 IUnknown_AddRef(iface);
467 return S_OK;
468 }
469 return E_NOINTERFACE;
470 }
471
472 static ULONG WINAPI RpcChannelBuffer_AddRef(LPRPCCHANNELBUFFER iface)
473 {
474 RpcChannelBuffer *This = (RpcChannelBuffer *)iface;
475 return InterlockedIncrement(&This->refs);
476 }
477
478 static ULONG WINAPI ServerRpcChannelBuffer_Release(LPRPCCHANNELBUFFER iface)
479 {
480 RpcChannelBuffer *This = (RpcChannelBuffer *)iface;
481 ULONG ref;
482
483 ref = InterlockedDecrement(&This->refs);
484 if (ref)
485 return ref;
486
487 HeapFree(GetProcessHeap(), 0, This);
488 return 0;
489 }
490
491 static ULONG WINAPI ClientRpcChannelBuffer_Release(LPRPCCHANNELBUFFER iface)
492 {
493 ClientRpcChannelBuffer *This = (ClientRpcChannelBuffer *)iface;
494 ULONG ref;
495
496 ref = InterlockedDecrement(&This->super.refs);
497 if (ref)
498 return ref;
499
500 if (This->event) CloseHandle(This->event);
501 RpcBindingFree(&This->bind);
502 HeapFree(GetProcessHeap(), 0, This);
503 return 0;
504 }
505
506 static HRESULT WINAPI ServerRpcChannelBuffer_GetBuffer(LPRPCCHANNELBUFFER iface, RPCOLEMESSAGE* olemsg, REFIID riid)
507 {
508 RpcChannelBuffer *This = (RpcChannelBuffer *)iface;
509 RPC_MESSAGE *msg = (RPC_MESSAGE *)olemsg;
510 RPC_STATUS status;
511 ORPCTHAT *orpcthat;
512 struct message_state *message_state;
513 ULONG extensions_size;
514 struct channel_hook_buffer_data *channel_hook_data;
515 unsigned int channel_hook_count;
516 ULONG extension_count;
517
518 TRACE("(%p)->(%p,%s)\n", This, olemsg, debugstr_guid(riid));
519
520 message_state = msg->Handle;
521 /* restore the binding handle and the real start of data */
522 msg->Handle = message_state->binding_handle;
523 msg->Buffer = (char *)msg->Buffer - message_state->prefix_data_len;
524
525 extensions_size = ChannelHooks_ServerGetSize(&message_state->channel_hook_info,
526 &channel_hook_data, &channel_hook_count, &extension_count);
527
528 msg->BufferLength += FIELD_OFFSET(WIRE_ORPCTHAT, extensions) + sizeof(DWORD);
529 if (extensions_size)
530 {
531 msg->BufferLength += FIELD_OFFSET(WIRE_ORPC_EXTENT_ARRAY, extent[2*sizeof(DWORD) + extensions_size]);
532 if (extension_count & 1)
533 msg->BufferLength += FIELD_OFFSET(WIRE_ORPC_EXTENT, data[0]);
534 }
535
536 if (message_state->bypass_rpcrt)
537 {
538 msg->Buffer = HeapAlloc(GetProcessHeap(), 0, msg->BufferLength);
539 if (msg->Buffer)
540 status = RPC_S_OK;
541 else
542 {
543 HeapFree(GetProcessHeap(), 0, channel_hook_data);
544 return E_OUTOFMEMORY;
545 }
546 }
547 else
548 status = I_RpcGetBuffer(msg);
549
550 orpcthat = msg->Buffer;
551 msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(WIRE_ORPCTHAT, extensions);
552
553 orpcthat->flags = ORPCF_NULL /* FIXME? */;
554
555 /* NDR representation of orpcthat->extensions */
556 *(DWORD *)msg->Buffer = extensions_size ? 1 : 0;
557 msg->Buffer = (char *)msg->Buffer + sizeof(DWORD);
558
559 if (extensions_size)
560 {
561 WIRE_ORPC_EXTENT_ARRAY *orpc_extent_array = msg->Buffer;
562 orpc_extent_array->size = extension_count;
563 orpc_extent_array->reserved = 0;
564 msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(WIRE_ORPC_EXTENT_ARRAY, extent);
565 /* NDR representation of orpc_extent_array->extent */
566 *(DWORD *)msg->Buffer = 1;
567 msg->Buffer = (char *)msg->Buffer + sizeof(DWORD);
568 /* NDR representation of [size_is] attribute of orpc_extent_array->extent */
569 *(DWORD *)msg->Buffer = (extension_count + 1) & ~1;
570 msg->Buffer = (char *)msg->Buffer + sizeof(DWORD);
571
572 msg->Buffer = ChannelHooks_ServerFillBuffer(&message_state->channel_hook_info,
573 msg->Buffer, channel_hook_data, channel_hook_count);
574
575 /* we must add a dummy extension if there is an odd extension
576 * count to meet the contract specified by the size_is attribute */
577 if (extension_count & 1)
578 {
579 WIRE_ORPC_EXTENT *wire_orpc_extent = msg->Buffer;
580 wire_orpc_extent->conformance = 0;
581 wire_orpc_extent->id = GUID_NULL;
582 wire_orpc_extent->size = 0;
583 msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(WIRE_ORPC_EXTENT, data[0]);
584 }
585 }
586
587 HeapFree(GetProcessHeap(), 0, channel_hook_data);
588
589 /* store the prefixed data length so that we can restore the real buffer
590 * later */
591 message_state->prefix_data_len = (char *)msg->Buffer - (char *)orpcthat;
592 msg->BufferLength -= message_state->prefix_data_len;
593 /* save away the message state again */
594 msg->Handle = message_state;
595
596 TRACE("-- %d\n", status);
597
598 return HRESULT_FROM_WIN32(status);
599 }
600
601 static HANDLE ClientRpcChannelBuffer_GetEventHandle(ClientRpcChannelBuffer *This)
602 {
603 HANDLE event = InterlockedExchangePointer(&This->event, NULL);
604
605 /* Note: must be auto-reset event so we can reuse it without a call
606 * to ResetEvent */
607 if (!event) event = CreateEventW(NULL, FALSE, FALSE, NULL);
608
609 return event;
610 }
611
612 static void ClientRpcChannelBuffer_ReleaseEventHandle(ClientRpcChannelBuffer *This, HANDLE event)
613 {
614 if (InterlockedCompareExchangePointer(&This->event, event, NULL))
615 /* already a handle cached in This */
616 CloseHandle(event);
617 }
618
619 static HRESULT WINAPI ClientRpcChannelBuffer_GetBuffer(LPRPCCHANNELBUFFER iface, RPCOLEMESSAGE* olemsg, REFIID riid)
620 {
621 ClientRpcChannelBuffer *This = (ClientRpcChannelBuffer *)iface;
622 RPC_MESSAGE *msg = (RPC_MESSAGE *)olemsg;
623 RPC_CLIENT_INTERFACE *cif;
624 RPC_STATUS status;
625 ORPCTHIS *orpcthis;
626 struct message_state *message_state;
627 ULONG extensions_size;
628 struct channel_hook_buffer_data *channel_hook_data;
629 unsigned int channel_hook_count;
630 ULONG extension_count;
631 IPID ipid;
632 HRESULT hr;
633 APARTMENT *apt = NULL;
634
635 TRACE("(%p)->(%p,%s)\n", This, olemsg, debugstr_guid(riid));
636
637 cif = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(RPC_CLIENT_INTERFACE));
638 if (!cif)
639 return E_OUTOFMEMORY;
640
641 message_state = HeapAlloc(GetProcessHeap(), 0, sizeof(*message_state));
642 if (!message_state)
643 {
644 HeapFree(GetProcessHeap(), 0, cif);
645 return E_OUTOFMEMORY;
646 }
647
648 cif->Length = sizeof(RPC_CLIENT_INTERFACE);
649 /* RPC interface ID = COM interface ID */
650 cif->InterfaceId.SyntaxGUID = *riid;
651 /* COM objects always have a version of 0.0 */
652 cif->InterfaceId.SyntaxVersion.MajorVersion = 0;
653 cif->InterfaceId.SyntaxVersion.MinorVersion = 0;
654 msg->Handle = This->bind;
655 msg->RpcInterfaceInformation = cif;
656
657 message_state->prefix_data_len = 0;
658 message_state->binding_handle = This->bind;
659
660 message_state->channel_hook_info.iid = *riid;
661 message_state->channel_hook_info.cbSize = sizeof(message_state->channel_hook_info);
662 message_state->channel_hook_info.uCausality = COM_CurrentCausalityId();
663 message_state->channel_hook_info.dwServerPid = This->server_pid;
664 message_state->channel_hook_info.iMethod = msg->ProcNum;
665 message_state->channel_hook_info.pObject = NULL; /* only present on server-side */
666 message_state->target_hwnd = NULL;
667 message_state->target_tid = 0;
668 memset(&message_state->params, 0, sizeof(message_state->params));
669
670 extensions_size = ChannelHooks_ClientGetSize(&message_state->channel_hook_info,
671 &channel_hook_data, &channel_hook_count, &extension_count);
672
673 msg->BufferLength += FIELD_OFFSET(WIRE_ORPCTHIS, extensions) + sizeof(DWORD);
674 if (extensions_size)
675 {
676 msg->BufferLength += FIELD_OFFSET(WIRE_ORPC_EXTENT_ARRAY, extent[2*sizeof(DWORD) + extensions_size]);
677 if (extension_count & 1)
678 msg->BufferLength += FIELD_OFFSET(WIRE_ORPC_EXTENT, data[0]);
679 }
680
681 RpcBindingInqObject(message_state->binding_handle, &ipid);
682 hr = ipid_get_dispatch_params(&ipid, &apt, &message_state->params.stub,
683 &message_state->params.chan,
684 &message_state->params.iid,
685 &message_state->params.iface);
686 if (hr == S_OK)
687 {
688 /* stub, chan, iface and iid are unneeded in multi-threaded case as we go
689 * via the RPC runtime */
690 if (apt->multi_threaded)
691 {
692 IRpcStubBuffer_Release(message_state->params.stub);
693 message_state->params.stub = NULL;
694 IRpcChannelBuffer_Release(message_state->params.chan);
695 message_state->params.chan = NULL;
696 message_state->params.iface = NULL;
697 }
698 else
699 {
700 message_state->params.bypass_rpcrt = TRUE;
701 message_state->target_hwnd = apartment_getwindow(apt);
702 message_state->target_tid = apt->tid;
703 /* we assume later on that this being non-NULL is the indicator that
704 * means call directly instead of going through RPC runtime */
705 if (!message_state->target_hwnd)
706 ERR("window for apartment %s is NULL\n", wine_dbgstr_longlong(apt->oxid));
707 }
708 }
709 if (apt) apartment_release(apt);
710 message_state->params.handle = ClientRpcChannelBuffer_GetEventHandle(This);
711 /* Note: message_state->params.msg is initialised in
712 * ClientRpcChannelBuffer_SendReceive */
713
714 /* shortcut the RPC runtime */
715 if (message_state->target_hwnd)
716 {
717 msg->Buffer = HeapAlloc(GetProcessHeap(), 0, msg->BufferLength);
718 if (msg->Buffer)
719 status = RPC_S_OK;
720 else
721 status = ERROR_OUTOFMEMORY;
722 }
723 else
724 status = I_RpcGetBuffer(msg);
725
726 msg->Handle = message_state;
727
728 if (status == RPC_S_OK)
729 {
730 orpcthis = msg->Buffer;
731 msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(WIRE_ORPCTHIS, extensions);
732
733 orpcthis->version.MajorVersion = COM_MAJOR_VERSION;
734 orpcthis->version.MinorVersion = COM_MINOR_VERSION;
735 orpcthis->flags = message_state->channel_hook_info.dwServerPid ? ORPCF_LOCAL : ORPCF_NULL;
736 orpcthis->reserved1 = 0;
737 orpcthis->cid = message_state->channel_hook_info.uCausality;
738
739 /* NDR representation of orpcthis->extensions */
740 *(DWORD *)msg->Buffer = extensions_size ? 1 : 0;
741 msg->Buffer = (char *)msg->Buffer + sizeof(DWORD);
742
743 if (extensions_size)
744 {
745 ORPC_EXTENT_ARRAY *orpc_extent_array = msg->Buffer;
746 orpc_extent_array->size = extension_count;
747 orpc_extent_array->reserved = 0;
748 msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(WIRE_ORPC_EXTENT_ARRAY, extent);
749 /* NDR representation of orpc_extent_array->extent */
750 *(DWORD *)msg->Buffer = 1;
751 msg->Buffer = (char *)msg->Buffer + sizeof(DWORD);
752 /* NDR representation of [size_is] attribute of orpc_extent_array->extent */
753 *(DWORD *)msg->Buffer = (extension_count + 1) & ~1;
754 msg->Buffer = (char *)msg->Buffer + sizeof(DWORD);
755
756 msg->Buffer = ChannelHooks_ClientFillBuffer(&message_state->channel_hook_info,
757 msg->Buffer, channel_hook_data, channel_hook_count);
758
759 /* we must add a dummy extension if there is an odd extension
760 * count to meet the contract specified by the size_is attribute */
761 if (extension_count & 1)
762 {
763 WIRE_ORPC_EXTENT *wire_orpc_extent = msg->Buffer;
764 wire_orpc_extent->conformance = 0;
765 wire_orpc_extent->id = GUID_NULL;
766 wire_orpc_extent->size = 0;
767 msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(WIRE_ORPC_EXTENT, data[0]);
768 }
769 }
770
771 /* store the prefixed data length so that we can restore the real buffer
772 * pointer in ClientRpcChannelBuffer_SendReceive. */
773 message_state->prefix_data_len = (char *)msg->Buffer - (char *)orpcthis;
774 msg->BufferLength -= message_state->prefix_data_len;
775 }
776
777 HeapFree(GetProcessHeap(), 0, channel_hook_data);
778
779 TRACE("-- %d\n", status);
780
781 return HRESULT_FROM_WIN32(status);
782 }
783
784 static HRESULT WINAPI ServerRpcChannelBuffer_SendReceive(LPRPCCHANNELBUFFER iface, RPCOLEMESSAGE *olemsg, ULONG *pstatus)
785 {
786 FIXME("stub\n");
787 return E_NOTIMPL;
788 }
789
790 /* this thread runs an outgoing RPC */
791 static DWORD WINAPI rpc_sendreceive_thread(LPVOID param)
792 {
793 struct dispatch_params *data = param;
794
795 /* Note: I_RpcSendReceive doesn't raise exceptions like the higher-level
796 * RPC functions do */
797 data->status = I_RpcSendReceive((RPC_MESSAGE *)data->msg);
798
799 TRACE("completed with status 0x%x\n", data->status);
800
801 SetEvent(data->handle);
802
803 return 0;
804 }
805
806 static inline HRESULT ClientRpcChannelBuffer_IsCorrectApartment(ClientRpcChannelBuffer *This, APARTMENT *apt)
807 {
808 OXID oxid;
809 if (!apt)
810 return S_FALSE;
811 if (apartment_getoxid(apt, &oxid) != S_OK)
812 return S_FALSE;
813 if (This->oxid != oxid)
814 return S_FALSE;
815 return S_OK;
816 }
817
818 static HRESULT WINAPI ClientRpcChannelBuffer_SendReceive(LPRPCCHANNELBUFFER iface, RPCOLEMESSAGE *olemsg, ULONG *pstatus)
819 {
820 ClientRpcChannelBuffer *This = (ClientRpcChannelBuffer *)iface;
821 HRESULT hr;
822 RPC_MESSAGE *msg = (RPC_MESSAGE *)olemsg;
823 RPC_STATUS status;
824 DWORD index;
825 struct message_state *message_state;
826 ORPCTHAT orpcthat;
827 ORPC_EXTENT_ARRAY orpc_ext_array;
828 WIRE_ORPC_EXTENT *first_wire_orpc_extent = NULL;
829 HRESULT hrFault = S_OK;
830
831 TRACE("(%p) iMethod=%d\n", olemsg, olemsg->iMethod);
832
833 hr = ClientRpcChannelBuffer_IsCorrectApartment(This, COM_CurrentApt());
834 if (hr != S_OK)
835 {
836 ERR("called from wrong apartment, should have been 0x%s\n",
837 wine_dbgstr_longlong(This->oxid));
838 return RPC_E_WRONG_THREAD;
839 }
840 /* This situation should be impossible in multi-threaded apartments,
841 * because the calling thread isn't re-enterable.
842 * Note: doing a COM call during the processing of a sent message is
843 * only disallowed if a client call is already being waited for
844 * completion */
845 if (!COM_CurrentApt()->multi_threaded &&
846 COM_CurrentInfo()->pending_call_count_client &&
847 InSendMessage())
848 {
849 ERR("can't make an outgoing COM call in response to a sent message\n");
850 return RPC_E_CANTCALLOUT_ININPUTSYNCCALL;
851 }
852
853 message_state = msg->Handle;
854 /* restore the binding handle and the real start of data */
855 msg->Handle = message_state->binding_handle;
856 msg->Buffer = (char *)msg->Buffer - message_state->prefix_data_len;
857 msg->BufferLength += message_state->prefix_data_len;
858
859 /* Note: this is an optimization in the Microsoft OLE runtime that we need
860 * to copy, as shown by the test_no_couninitialize_client test. without
861 * short-circuiting the RPC runtime in the case below, the test will
862 * deadlock on the loader lock due to the RPC runtime needing to create
863 * a thread to process the RPC when this function is called indirectly
864 * from DllMain */
865
866 message_state->params.msg = olemsg;
867 if (message_state->params.bypass_rpcrt)
868 {
869 TRACE("Calling apartment thread 0x%08x...\n", message_state->target_tid);
870
871 msg->ProcNum &= ~RPC_FLAGS_VALID_BIT;
872
873 if (!PostMessageW(message_state->target_hwnd, DM_EXECUTERPC, 0,
874 (LPARAM)&message_state->params))
875 {
876 ERR("PostMessage failed with error %u\n", GetLastError());
877
878 /* Note: message_state->params.iface doesn't have a reference and
879 * so doesn't need to be released */
880
881 hr = HRESULT_FROM_WIN32(GetLastError());
882 }
883 }
884 else
885 {
886 /* we use a separate thread here because we need to be able to
887 * pump the message loop in the application thread: if we do not,
888 * any windows created by this thread will hang and RPCs that try
889 * and re-enter this STA from an incoming server thread will
890 * deadlock. InstallShield is an example of that.
891 */
892 if (!QueueUserWorkItem(rpc_sendreceive_thread, &message_state->params, WT_EXECUTEDEFAULT))
893 {
894 ERR("QueueUserWorkItem failed with error %u\n", GetLastError());
895 hr = E_UNEXPECTED;
896 }
897 else
898 hr = S_OK;
899 }
900
901 if (hr == S_OK)
902 {
903 if (WaitForSingleObject(message_state->params.handle, 0))
904 {
905 COM_CurrentInfo()->pending_call_count_client++;
906 hr = CoWaitForMultipleHandles(0, INFINITE, 1, &message_state->params.handle, &index);
907 COM_CurrentInfo()->pending_call_count_client--;
908 }
909 }
910 ClientRpcChannelBuffer_ReleaseEventHandle(This, message_state->params.handle);
911
912 /* for WM shortcut, faults are returned in params->hr */
913 if (hr == S_OK)
914 hrFault = message_state->params.hr;
915
916 status = message_state->params.status;
917
918 orpcthat.flags = ORPCF_NULL;
919 orpcthat.extensions = NULL;
920
921 TRACE("RPC call status: 0x%x\n", status);
922 if (status != RPC_S_OK)
923 hr = HRESULT_FROM_WIN32(status);
924
925 TRACE("hrFault = 0x%08x\n", hrFault);
926
927 /* FIXME: this condition should be
928 * "hr == S_OK && (!hrFault || msg->BufferLength > FIELD_OFFSET(ORPCTHAT, extensions) + 4)"
929 * but we don't currently reset the message length for PostMessage
930 * dispatched calls */
931 if (hr == S_OK && hrFault == S_OK)
932 {
933 HRESULT hr2;
934 char *original_buffer = msg->Buffer;
935
936 /* handle ORPCTHAT and client extensions */
937
938 hr2 = unmarshal_ORPCTHAT(msg, &orpcthat, &orpc_ext_array, &first_wire_orpc_extent);
939 if (FAILED(hr2))
940 hr = hr2;
941
942 message_state->prefix_data_len = (char *)msg->Buffer - original_buffer;
943 msg->BufferLength -= message_state->prefix_data_len;
944 }
945 else
946 message_state->prefix_data_len = 0;
947
948 if (hr == S_OK)
949 {
950 ChannelHooks_ClientNotify(&message_state->channel_hook_info,
951 msg->DataRepresentation,
952 first_wire_orpc_extent,
953 orpcthat.extensions && first_wire_orpc_extent ? orpcthat.extensions->size : 0,
954 hrFault);
955 }
956
957 /* save away the message state again */
958 msg->Handle = message_state;
959
960 if (pstatus) *pstatus = status;
961
962 if (hr == S_OK)
963 hr = hrFault;
964
965 TRACE("-- 0x%08x\n", hr);
966
967 return hr;
968 }
969
970 static HRESULT WINAPI ServerRpcChannelBuffer_FreeBuffer(LPRPCCHANNELBUFFER iface, RPCOLEMESSAGE* olemsg)
971 {
972 RPC_MESSAGE *msg = (RPC_MESSAGE *)olemsg;
973 RPC_STATUS status;
974 struct message_state *message_state;
975
976 TRACE("(%p)\n", msg);
977
978 message_state = msg->Handle;
979 /* restore the binding handle and the real start of data */
980 msg->Handle = message_state->binding_handle;
981 msg->Buffer = (char *)msg->Buffer - message_state->prefix_data_len;
982 msg->BufferLength += message_state->prefix_data_len;
983 message_state->prefix_data_len = 0;
984
985 if (message_state->bypass_rpcrt)
986 {
987 HeapFree(GetProcessHeap(), 0, msg->Buffer);
988 status = RPC_S_OK;
989 }
990 else
991 status = I_RpcFreeBuffer(msg);
992
993 msg->Handle = message_state;
994
995 TRACE("-- %d\n", status);
996
997 return HRESULT_FROM_WIN32(status);
998 }
999
1000 static HRESULT WINAPI ClientRpcChannelBuffer_FreeBuffer(LPRPCCHANNELBUFFER iface, RPCOLEMESSAGE* olemsg)
1001 {
1002 RPC_MESSAGE *msg = (RPC_MESSAGE *)olemsg;
1003 RPC_STATUS status;
1004 struct message_state *message_state;
1005
1006 TRACE("(%p)\n", msg);
1007
1008 message_state = msg->Handle;
1009 /* restore the binding handle and the real start of data */
1010 msg->Handle = message_state->binding_handle;
1011 msg->Buffer = (char *)msg->Buffer - message_state->prefix_data_len;
1012 msg->BufferLength += message_state->prefix_data_len;
1013
1014 if (message_state->params.bypass_rpcrt)
1015 {
1016 HeapFree(GetProcessHeap(), 0, msg->Buffer);
1017 status = RPC_S_OK;
1018 }
1019 else
1020 status = I_RpcFreeBuffer(msg);
1021
1022 HeapFree(GetProcessHeap(), 0, msg->RpcInterfaceInformation);
1023 msg->RpcInterfaceInformation = NULL;
1024
1025 if (message_state->params.stub)
1026 IRpcStubBuffer_Release(message_state->params.stub);
1027 if (message_state->params.chan)
1028 IRpcChannelBuffer_Release(message_state->params.chan);
1029 HeapFree(GetProcessHeap(), 0, message_state);
1030
1031 TRACE("-- %d\n", status);
1032
1033 return HRESULT_FROM_WIN32(status);
1034 }
1035
1036 static HRESULT WINAPI ClientRpcChannelBuffer_GetDestCtx(LPRPCCHANNELBUFFER iface, DWORD* pdwDestContext, void** ppvDestContext)
1037 {
1038 ClientRpcChannelBuffer *This = (ClientRpcChannelBuffer *)iface;
1039
1040 TRACE("(%p,%p)\n", pdwDestContext, ppvDestContext);
1041
1042 *pdwDestContext = This->dest_context;
1043 *ppvDestContext = This->dest_context_data;
1044
1045 return S_OK;
1046 }
1047
1048 static HRESULT WINAPI ServerRpcChannelBuffer_GetDestCtx(LPRPCCHANNELBUFFER iface, DWORD* pdwDestContext, void** ppvDestContext)
1049 {
1050 WARN("(%p,%p), stub!\n", pdwDestContext, ppvDestContext);
1051
1052 /* FIXME: implement this by storing the dwDestContext and pvDestContext
1053 * values passed into IMarshal_MarshalInterface and returning them here */
1054 *pdwDestContext = MSHCTX_DIFFERENTMACHINE;
1055 *ppvDestContext = NULL;
1056 return S_OK;
1057 }
1058
1059 static HRESULT WINAPI RpcChannelBuffer_IsConnected(LPRPCCHANNELBUFFER iface)
1060 {
1061 TRACE("()\n");
1062 /* native does nothing too */
1063 return S_OK;
1064 }
1065
1066 static const IRpcChannelBufferVtbl ClientRpcChannelBufferVtbl =
1067 {
1068 RpcChannelBuffer_QueryInterface,
1069 RpcChannelBuffer_AddRef,
1070 ClientRpcChannelBuffer_Release,
1071 ClientRpcChannelBuffer_GetBuffer,
1072 ClientRpcChannelBuffer_SendReceive,
1073 ClientRpcChannelBuffer_FreeBuffer,
1074 ClientRpcChannelBuffer_GetDestCtx,
1075 RpcChannelBuffer_IsConnected
1076 };
1077
1078 static const IRpcChannelBufferVtbl ServerRpcChannelBufferVtbl =
1079 {
1080 RpcChannelBuffer_QueryInterface,
1081 RpcChannelBuffer_AddRef,
1082 ServerRpcChannelBuffer_Release,
1083 ServerRpcChannelBuffer_GetBuffer,
1084 ServerRpcChannelBuffer_SendReceive,
1085 ServerRpcChannelBuffer_FreeBuffer,
1086 ServerRpcChannelBuffer_GetDestCtx,
1087 RpcChannelBuffer_IsConnected
1088 };
1089
1090 /* returns a channel buffer for proxies */
1091 HRESULT RPC_CreateClientChannel(const OXID *oxid, const IPID *ipid,
1092 const OXID_INFO *oxid_info,
1093 DWORD dest_context, void *dest_context_data,
1094 IRpcChannelBuffer **chan)
1095 {
1096 ClientRpcChannelBuffer *This;
1097 WCHAR endpoint[200];
1098 RPC_BINDING_HANDLE bind;
1099 RPC_STATUS status;
1100 LPWSTR string_binding;
1101
1102 /* FIXME: get the endpoint from oxid_info->psa instead */
1103 get_rpc_endpoint(endpoint, oxid);
1104
1105 TRACE("proxy pipe: connecting to endpoint: %s\n", debugstr_w(endpoint));
1106
1107 status = RpcStringBindingComposeW(
1108 NULL,
1109 wszRpcTransport,
1110 NULL,
1111 endpoint,
1112 NULL,
1113 &string_binding);
1114
1115 if (status == RPC_S_OK)
1116 {
1117 status = RpcBindingFromStringBindingW(string_binding, &bind);
1118
1119 if (status == RPC_S_OK)
1120 {
1121 IPID ipid2 = *ipid; /* why can't RpcBindingSetObject take a const? */
1122 status = RpcBindingSetObject(bind, &ipid2);
1123 if (status != RPC_S_OK)
1124 RpcBindingFree(&bind);
1125 }
1126
1127 RpcStringFreeW(&string_binding);
1128 }
1129
1130 if (status != RPC_S_OK)
1131 {
1132 ERR("Couldn't get binding for endpoint %s, status = %d\n", debugstr_w(endpoint), status);
1133 return HRESULT_FROM_WIN32(status);
1134 }
1135
1136 This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
1137 if (!This)
1138 {
1139 RpcBindingFree(&bind);
1140 return E_OUTOFMEMORY;
1141 }
1142
1143 This->super.lpVtbl = &ClientRpcChannelBufferVtbl;
1144 This->super.refs = 1;
1145 This->bind = bind;
1146 apartment_getoxid(COM_CurrentApt(), &This->oxid);
1147 This->server_pid = oxid_info->dwPid;
1148 This->dest_context = dest_context;
1149 This->dest_context_data = dest_context_data;
1150 This->event = NULL;
1151
1152 *chan = (IRpcChannelBuffer*)This;
1153
1154 return S_OK;
1155 }
1156
1157 HRESULT RPC_CreateServerChannel(IRpcChannelBuffer **chan)
1158 {
1159 RpcChannelBuffer *This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
1160 if (!This)
1161 return E_OUTOFMEMORY;
1162
1163 This->lpVtbl = &ServerRpcChannelBufferVtbl;
1164 This->refs = 1;
1165
1166 *chan = (IRpcChannelBuffer*)This;
1167
1168 return S_OK;
1169 }
1170
1171 /* unmarshals ORPC_EXTENT_ARRAY according to NDR rules, but doesn't allocate
1172 * any memory */
1173 static HRESULT unmarshal_ORPC_EXTENT_ARRAY(RPC_MESSAGE *msg, const char *end,
1174 ORPC_EXTENT_ARRAY *extensions,
1175 WIRE_ORPC_EXTENT **first_wire_orpc_extent)
1176 {
1177 DWORD pointer_id;
1178 DWORD i;
1179
1180 memcpy(extensions, msg->Buffer, FIELD_OFFSET(WIRE_ORPC_EXTENT_ARRAY, extent));
1181 msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(WIRE_ORPC_EXTENT_ARRAY, extent);
1182
1183 if ((const char *)msg->Buffer + 2 * sizeof(DWORD) > end)
1184 return RPC_E_INVALID_HEADER;
1185
1186 pointer_id = *(DWORD *)msg->Buffer;
1187 msg->Buffer = (char *)msg->Buffer + sizeof(DWORD);
1188 extensions->extent = NULL;
1189
1190 if (pointer_id)
1191 {
1192 WIRE_ORPC_EXTENT *wire_orpc_extent;
1193
1194 /* conformance */
1195 if (*(DWORD *)msg->Buffer != ((extensions->size+1)&~1))
1196 return RPC_S_INVALID_BOUND;
1197
1198 msg->Buffer = (char *)msg->Buffer + sizeof(DWORD);
1199
1200 /* arbitrary limit for security (don't know what native does) */
1201 if (extensions->size > 256)
1202 {
1203 ERR("too many extensions: %d\n", extensions->size);
1204 return RPC_S_INVALID_BOUND;
1205 }
1206
1207 *first_wire_orpc_extent = wire_orpc_extent = msg->Buffer;
1208 for (i = 0; i < ((extensions->size+1)&~1); i++)
1209 {
1210 if ((const char *)&wire_orpc_extent->data[0] > end)
1211 return RPC_S_INVALID_BOUND;
1212 if (wire_orpc_extent->conformance != ((wire_orpc_extent->size+7)&~7))
1213 return RPC_S_INVALID_BOUND;
1214 if ((const char *)&wire_orpc_extent->data[wire_orpc_extent->conformance] > end)
1215 return RPC_S_INVALID_BOUND;
1216 TRACE("size %u, guid %s\n", wire_orpc_extent->size, debugstr_guid(&wire_orpc_extent->id));
1217 wire_orpc_extent = (WIRE_ORPC_EXTENT *)&wire_orpc_extent->data[wire_orpc_extent->conformance];
1218 }
1219 msg->Buffer = wire_orpc_extent;
1220 }
1221
1222 return S_OK;
1223 }
1224
1225 /* unmarshals ORPCTHIS according to NDR rules, but doesn't allocate any memory */
1226 static HRESULT unmarshal_ORPCTHIS(RPC_MESSAGE *msg, ORPCTHIS *orpcthis,
1227 ORPC_EXTENT_ARRAY *orpc_ext_array, WIRE_ORPC_EXTENT **first_wire_orpc_extent)
1228 {
1229 const char *end = (char *)msg->Buffer + msg->BufferLength;
1230
1231 *first_wire_orpc_extent = NULL;
1232
1233 if (msg->BufferLength < FIELD_OFFSET(WIRE_ORPCTHIS, extensions) + sizeof(DWORD))
1234 {
1235 ERR("invalid buffer length\n");
1236 return RPC_E_INVALID_HEADER;
1237 }
1238
1239 memcpy(orpcthis, msg->Buffer, FIELD_OFFSET(WIRE_ORPCTHIS, extensions));
1240 msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(WIRE_ORPCTHIS, extensions);
1241
1242 if ((const char *)msg->Buffer + sizeof(DWORD) > end)
1243 return RPC_E_INVALID_HEADER;
1244
1245 if (*(DWORD *)msg->Buffer)
1246 orpcthis->extensions = orpc_ext_array;
1247 else
1248 orpcthis->extensions = NULL;
1249
1250 msg->Buffer = (char *)msg->Buffer + sizeof(DWORD);
1251
1252 if (orpcthis->extensions)
1253 {
1254 HRESULT hr = unmarshal_ORPC_EXTENT_ARRAY(msg, end, orpc_ext_array,
1255 first_wire_orpc_extent);
1256 if (FAILED(hr))
1257 return hr;
1258 }
1259
1260 if ((orpcthis->version.MajorVersion != COM_MAJOR_VERSION) ||
1261 (orpcthis->version.MinorVersion > COM_MINOR_VERSION))
1262 {
1263 ERR("COM version {%d, %d} not supported\n",
1264 orpcthis->version.MajorVersion, orpcthis->version.MinorVersion);
1265 return RPC_E_VERSION_MISMATCH;
1266 }
1267
1268 if (orpcthis->flags & ~(ORPCF_LOCAL|ORPCF_RESERVED1|ORPCF_RESERVED2|ORPCF_RESERVED3|ORPCF_RESERVED4))
1269 {
1270 ERR("invalid flags 0x%x\n", orpcthis->flags & ~(ORPCF_LOCAL|ORPCF_RESERVED1|ORPCF_RESERVED2|ORPCF_RESERVED3|ORPCF_RESERVED4));
1271 return RPC_E_INVALID_HEADER;
1272 }
1273
1274 return S_OK;
1275 }
1276
1277 static HRESULT unmarshal_ORPCTHAT(RPC_MESSAGE *msg, ORPCTHAT *orpcthat,
1278 ORPC_EXTENT_ARRAY *orpc_ext_array, WIRE_ORPC_EXTENT **first_wire_orpc_extent)
1279 {
1280 const char *end = (char *)msg->Buffer + msg->BufferLength;
1281
1282 *first_wire_orpc_extent = NULL;
1283
1284 if (msg->BufferLength < FIELD_OFFSET(WIRE_ORPCTHAT, extensions) + sizeof(DWORD))
1285 {
1286 ERR("invalid buffer length\n");
1287 return RPC_E_INVALID_HEADER;
1288 }
1289
1290 memcpy(orpcthat, msg->Buffer, FIELD_OFFSET(WIRE_ORPCTHAT, extensions));
1291 msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(WIRE_ORPCTHAT, extensions);
1292
1293 if ((const char *)msg->Buffer + sizeof(DWORD) > end)
1294 return RPC_E_INVALID_HEADER;
1295
1296 if (*(DWORD *)msg->Buffer)
1297 orpcthat->extensions = orpc_ext_array;
1298 else
1299 orpcthat->extensions = NULL;
1300
1301 msg->Buffer = (char *)msg->Buffer + sizeof(DWORD);
1302
1303 if (orpcthat->extensions)
1304 {
1305 HRESULT hr = unmarshal_ORPC_EXTENT_ARRAY(msg, end, orpc_ext_array,
1306 first_wire_orpc_extent);
1307 if (FAILED(hr))
1308 return hr;
1309 }
1310
1311 if (orpcthat->flags & ~(ORPCF_LOCAL|ORPCF_RESERVED1|ORPCF_RESERVED2|ORPCF_RESERVED3|ORPCF_RESERVED4))
1312 {
1313 ERR("invalid flags 0x%x\n", orpcthat->flags & ~(ORPCF_LOCAL|ORPCF_RESERVED1|ORPCF_RESERVED2|ORPCF_RESERVED3|ORPCF_RESERVED4));
1314 return RPC_E_INVALID_HEADER;
1315 }
1316
1317 return S_OK;
1318 }
1319
1320 void RPC_ExecuteCall(struct dispatch_params *params)
1321 {
1322 struct message_state *message_state = NULL;
1323 RPC_MESSAGE *msg = (RPC_MESSAGE *)params->msg;
1324 char *original_buffer = msg->Buffer;
1325 ORPCTHIS orpcthis;
1326 ORPC_EXTENT_ARRAY orpc_ext_array;
1327 WIRE_ORPC_EXTENT *first_wire_orpc_extent;
1328 GUID old_causality_id;
1329
1330 /* handle ORPCTHIS and server extensions */
1331
1332 params->hr = unmarshal_ORPCTHIS(msg, &orpcthis, &orpc_ext_array, &first_wire_orpc_extent);
1333 if (params->hr != S_OK)
1334 {
1335 msg->Buffer = original_buffer;
1336 goto exit;
1337 }
1338
1339 message_state = HeapAlloc(GetProcessHeap(), 0, sizeof(*message_state));
1340 if (!message_state)
1341 {
1342 params->hr = E_OUTOFMEMORY;
1343 msg->Buffer = original_buffer;
1344 goto exit;
1345 }
1346
1347 message_state->prefix_data_len = (char *)msg->Buffer - original_buffer;
1348 message_state->binding_handle = msg->Handle;
1349 message_state->bypass_rpcrt = params->bypass_rpcrt;
1350
1351 message_state->channel_hook_info.iid = params->iid;
1352 message_state->channel_hook_info.cbSize = sizeof(message_state->channel_hook_info);
1353 message_state->channel_hook_info.uCausality = orpcthis.cid;
1354 message_state->channel_hook_info.dwServerPid = GetCurrentProcessId();
1355 message_state->channel_hook_info.iMethod = msg->ProcNum;
1356 message_state->channel_hook_info.pObject = params->iface;
1357
1358 if (orpcthis.extensions && first_wire_orpc_extent &&
1359 orpcthis.extensions->size)
1360 ChannelHooks_ServerNotify(&message_state->channel_hook_info, msg->DataRepresentation, first_wire_orpc_extent, orpcthis.extensions->size);
1361
1362 msg->Handle = message_state;
1363 msg->BufferLength -= message_state->prefix_data_len;
1364
1365 /* call message filter */
1366
1367 if (COM_CurrentApt()->filter)
1368 {
1369 DWORD handlecall;
1370 INTERFACEINFO interface_info;
1371 CALLTYPE calltype;
1372
1373 interface_info.pUnk = params->iface;
1374 interface_info.iid = params->iid;
1375 interface_info.wMethod = msg->ProcNum;
1376
1377 if (IsEqualGUID(&orpcthis.cid, &COM_CurrentInfo()->causality_id))
1378 calltype = CALLTYPE_NESTED;
1379 else if (COM_CurrentInfo()->pending_call_count_server == 0)
1380 calltype = CALLTYPE_TOPLEVEL;
1381 else
1382 calltype = CALLTYPE_TOPLEVEL_CALLPENDING;
1383
1384 handlecall = IMessageFilter_HandleInComingCall(COM_CurrentApt()->filter,
1385 calltype,
1386 UlongToHandle(GetCurrentProcessId()),
1387 0 /* FIXME */,
1388 &interface_info);
1389 TRACE("IMessageFilter_HandleInComingCall returned %d\n", handlecall);
1390 switch (handlecall)
1391 {
1392 case SERVERCALL_REJECTED:
1393 params->hr = RPC_E_CALL_REJECTED;
1394 goto exit_reset_state;
1395 case SERVERCALL_RETRYLATER:
1396 #if 0 /* FIXME: handle retries on the client side before enabling this code */
1397 params->hr = RPC_E_RETRY;
1398 goto exit_reset_state;
1399 #else
1400 FIXME("retry call later not implemented\n");
1401 break;
1402 #endif
1403 case SERVERCALL_ISHANDLED:
1404 default:
1405 break;
1406 }
1407 }
1408
1409 /* invoke the method */
1410
1411 /* save the old causality ID - note: any calls executed while processing
1412 * messages received during the SendReceive will appear to originate from
1413 * this call - this should be checked with what Windows does */
1414 old_causality_id = COM_CurrentInfo()->causality_id;
1415 COM_CurrentInfo()->causality_id = orpcthis.cid;
1416 COM_CurrentInfo()->pending_call_count_server++;
1417 params->hr = IRpcStubBuffer_Invoke(params->stub, params->msg, params->chan);
1418 COM_CurrentInfo()->pending_call_count_server--;
1419 COM_CurrentInfo()->causality_id = old_causality_id;
1420
1421 /* the invoke allocated a new buffer, so free the old one */
1422 if (message_state->bypass_rpcrt && original_buffer != msg->Buffer)
1423 HeapFree(GetProcessHeap(), 0, original_buffer);
1424
1425 exit_reset_state:
1426 message_state = msg->Handle;
1427 msg->Handle = message_state->binding_handle;
1428 msg->Buffer = (char *)msg->Buffer - message_state->prefix_data_len;
1429 msg->BufferLength += message_state->prefix_data_len;
1430
1431 exit:
1432 HeapFree(GetProcessHeap(), 0, message_state);
1433 if (params->handle) SetEvent(params->handle);
1434 }
1435
1436 static void __RPC_STUB dispatch_rpc(RPC_MESSAGE *msg)
1437 {
1438 struct dispatch_params *params;
1439 APARTMENT *apt;
1440 IPID ipid;
1441 HRESULT hr;
1442
1443 RpcBindingInqObject(msg->Handle, &ipid);
1444
1445 TRACE("ipid = %s, iMethod = %d\n", debugstr_guid(&ipid), msg->ProcNum);
1446
1447 params = HeapAlloc(GetProcessHeap(), 0, sizeof(*params));
1448 if (!params)
1449 {
1450 RpcRaiseException(E_OUTOFMEMORY);
1451 return;
1452 }
1453
1454 hr = ipid_get_dispatch_params(&ipid, &apt, &params->stub, &params->chan,
1455 &params->iid, &params->iface);
1456 if (hr != S_OK)
1457 {
1458 ERR("no apartment found for ipid %s\n", debugstr_guid(&ipid));
1459 HeapFree(GetProcessHeap(), 0, params);
1460 RpcRaiseException(hr);
1461 return;
1462 }
1463
1464 params->msg = (RPCOLEMESSAGE *)msg;
1465 params->status = RPC_S_OK;
1466 params->hr = S_OK;
1467 params->handle = NULL;
1468 params->bypass_rpcrt = FALSE;
1469
1470 /* Note: this is the important difference between STAs and MTAs - we
1471 * always execute RPCs to STAs in the thread that originally created the
1472 * apartment (i.e. the one that pumps messages to the window) */
1473 if (!apt->multi_threaded)
1474 {
1475 params->handle = CreateEventW(NULL, FALSE, FALSE, NULL);
1476
1477 TRACE("Calling apartment thread 0x%08x...\n", apt->tid);
1478
1479 if (PostMessageW(apartment_getwindow(apt), DM_EXECUTERPC, 0, (LPARAM)params))
1480 WaitForSingleObject(params->handle, INFINITE);
1481 else
1482 {
1483 ERR("PostMessage failed with error %u\n", GetLastError());
1484 IRpcChannelBuffer_Release(params->chan);
1485 IRpcStubBuffer_Release(params->stub);
1486 }
1487 CloseHandle(params->handle);
1488 }
1489 else
1490 {
1491 BOOL joined = FALSE;
1492 if (!COM_CurrentInfo()->apt)
1493 {
1494 apartment_joinmta();
1495 joined = TRUE;
1496 }
1497 RPC_ExecuteCall(params);
1498 if (joined)
1499 {
1500 apartment_release(COM_CurrentInfo()->apt);
1501 COM_CurrentInfo()->apt = NULL;
1502 }
1503 }
1504
1505 hr = params->hr;
1506 if (params->chan)
1507 IRpcChannelBuffer_Release(params->chan);
1508 if (params->stub)
1509 IRpcStubBuffer_Release(params->stub);
1510 HeapFree(GetProcessHeap(), 0, params);
1511
1512 apartment_release(apt);
1513
1514 /* if IRpcStubBuffer_Invoke fails, we should raise an exception to tell
1515 * the RPC runtime that the call failed */
1516 if (hr) RpcRaiseException(hr);
1517 }
1518
1519 /* stub registration */
1520 HRESULT RPC_RegisterInterface(REFIID riid)
1521 {
1522 struct registered_if *rif;
1523 BOOL found = FALSE;
1524 HRESULT hr = S_OK;
1525
1526 TRACE("(%s)\n", debugstr_guid(riid));
1527
1528 EnterCriticalSection(&csRegIf);
1529 LIST_FOR_EACH_ENTRY(rif, &registered_interfaces, struct registered_if, entry)
1530 {
1531 if (IsEqualGUID(&rif->If.InterfaceId.SyntaxGUID, riid))
1532 {
1533 rif->refs++;
1534 found = TRUE;
1535 break;
1536 }
1537 }
1538 if (!found)
1539 {
1540 TRACE("Creating new interface\n");
1541
1542 rif = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*rif));
1543 if (rif)
1544 {
1545 RPC_STATUS status;
1546
1547 rif->refs = 1;
1548 rif->If.Length = sizeof(RPC_SERVER_INTERFACE);
1549 /* RPC interface ID = COM interface ID */
1550 rif->If.InterfaceId.SyntaxGUID = *riid;
1551 rif->If.DispatchTable = &rpc_dispatch;
1552 /* all other fields are 0, including the version asCOM objects
1553 * always have a version of 0.0 */
1554 status = RpcServerRegisterIfEx(
1555 (RPC_IF_HANDLE)&rif->If,
1556 NULL, NULL,
1557 RPC_IF_OLE | RPC_IF_AUTOLISTEN,
1558 RPC_C_LISTEN_MAX_CALLS_DEFAULT,
1559 NULL);
1560 if (status == RPC_S_OK)
1561 list_add_tail(&registered_interfaces, &rif->entry);
1562 else
1563 {
1564 ERR("RpcServerRegisterIfEx failed with error %d\n", status);
1565 HeapFree(GetProcessHeap(), 0, rif);
1566 hr = HRESULT_FROM_WIN32(status);
1567 }
1568 }
1569 else
1570 hr = E_OUTOFMEMORY;
1571 }
1572 LeaveCriticalSection(&csRegIf);
1573 return hr;
1574 }
1575
1576 /* stub unregistration */
1577 void RPC_UnregisterInterface(REFIID riid)
1578 {
1579 struct registered_if *rif;
1580 EnterCriticalSection(&csRegIf);
1581 LIST_FOR_EACH_ENTRY(rif, &registered_interfaces, struct registered_if, entry)
1582 {
1583 if (IsEqualGUID(&rif->If.InterfaceId.SyntaxGUID, riid))
1584 {
1585 if (!--rif->refs)
1586 {
1587 RpcServerUnregisterIf((RPC_IF_HANDLE)&rif->If, NULL, TRUE);
1588 list_remove(&rif->entry);
1589 HeapFree(GetProcessHeap(), 0, rif);
1590 }
1591 break;
1592 }
1593 }
1594 LeaveCriticalSection(&csRegIf);
1595 }
1596
1597 /* get the info for an OXID, including the IPID for the rem unknown interface
1598 * and the string binding */
1599 HRESULT RPC_ResolveOxid(OXID oxid, OXID_INFO *oxid_info)
1600 {
1601 TRACE("%s\n", wine_dbgstr_longlong(oxid));
1602
1603 oxid_info->dwTid = 0;
1604 oxid_info->dwPid = 0;
1605 oxid_info->dwAuthnHint = RPC_C_AUTHN_LEVEL_NONE;
1606 /* FIXME: this is a hack around not having an OXID resolver yet -
1607 * this function should contact the machine's OXID resolver and then it
1608 * should give us the IPID of the IRemUnknown interface */
1609 oxid_info->ipidRemUnknown.Data1 = 0xffffffff;
1610 oxid_info->ipidRemUnknown.Data2 = 0xffff;
1611 oxid_info->ipidRemUnknown.Data3 = 0xffff;
1612 memcpy(oxid_info->ipidRemUnknown.Data4, &oxid, sizeof(OXID));
1613 oxid_info->psa = NULL /* FIXME */;
1614
1615 return S_OK;
1616 }
1617
1618 /* make the apartment reachable by other threads and processes and create the
1619 * IRemUnknown object */
1620 void RPC_StartRemoting(struct apartment *apt)
1621 {
1622 if (!InterlockedExchange(&apt->remoting_started, TRUE))
1623 {
1624 WCHAR endpoint[200];
1625 RPC_STATUS status;
1626
1627 get_rpc_endpoint(endpoint, &apt->oxid);
1628
1629 status = RpcServerUseProtseqEpW(
1630 wszRpcTransport,
1631 RPC_C_PROTSEQ_MAX_REQS_DEFAULT,
1632 endpoint,
1633 NULL);
1634 if (status != RPC_S_OK)
1635 ERR("Couldn't register endpoint %s\n", debugstr_w(endpoint));
1636
1637 /* FIXME: move remote unknown exporting into this function */
1638 }
1639 start_apartment_remote_unknown();
1640 }
1641
1642
1643 static HRESULT create_server(REFCLSID rclsid, HANDLE *process)
1644 {
1645 static const WCHAR wszLocalServer32[] = { 'L','o','c','a','l','S','e','r','v','e','r','3','2',0 };
1646 static const WCHAR embedding[] = { ' ', '-','E','m','b','e','d','d','i','n','g',0 };
1647 HKEY key;
1648 HRESULT hres;
1649 WCHAR command[MAX_PATH+sizeof(embedding)/sizeof(WCHAR)];
1650 DWORD size = (MAX_PATH+1) * sizeof(WCHAR);
1651 STARTUPINFOW sinfo;
1652 PROCESS_INFORMATION pinfo;
1653
1654 hres = COM_OpenKeyForCLSID(rclsid, wszLocalServer32, KEY_READ, &key);
1655 if (FAILED(hres)) {
1656 ERR("class %s not registered\n", debugstr_guid(rclsid));
1657 return hres;
1658 }
1659
1660 hres = RegQueryValueExW(key, NULL, NULL, NULL, (LPBYTE)command, &size);
1661 RegCloseKey(key);
1662 if (hres) {
1663 WARN("No default value for LocalServer32 key\n");
1664 return REGDB_E_CLASSNOTREG; /* FIXME: check retval */
1665 }
1666
1667 memset(&sinfo,0,sizeof(sinfo));
1668 sinfo.cb = sizeof(sinfo);
1669
1670 /* EXE servers are started with the -Embedding switch. */
1671
1672 strcatW(command, embedding);
1673
1674 TRACE("activating local server %s for %s\n", debugstr_w(command), debugstr_guid(rclsid));
1675
1676 /* FIXME: Win2003 supports a ServerExecutable value that is passed into
1677 * CreateProcess */
1678 if (!CreateProcessW(NULL, command, NULL, NULL, FALSE, 0, NULL, NULL, &sinfo, &pinfo)) {
1679 WARN("failed to run local server %s\n", debugstr_w(command));
1680 return HRESULT_FROM_WIN32(GetLastError());
1681 }
1682 *process = pinfo.hProcess;
1683 CloseHandle(pinfo.hThread);
1684
1685 return S_OK;
1686 }
1687
1688 /*
1689 * start_local_service() - start a service given its name and parameters
1690 */
1691 static DWORD start_local_service(LPCWSTR name, DWORD num, LPCWSTR *params)
1692 {
1693 SC_HANDLE handle, hsvc;
1694 DWORD r = ERROR_FUNCTION_FAILED;
1695
1696 TRACE("Starting service %s %d params\n", debugstr_w(name), num);
1697
1698 handle = OpenSCManagerW(NULL, NULL, SC_MANAGER_CONNECT);
1699 if (!handle)
1700 return r;
1701 hsvc = OpenServiceW(handle, name, SERVICE_START);
1702 if (hsvc)
1703 {
1704 if(StartServiceW(hsvc, num, params))
1705 r = ERROR_SUCCESS;
1706 else
1707 r = GetLastError();
1708 if (r == ERROR_SERVICE_ALREADY_RUNNING)
1709 r = ERROR_SUCCESS;
1710 CloseServiceHandle(hsvc);
1711 }
1712 else
1713 r = GetLastError();
1714 CloseServiceHandle(handle);
1715
1716 TRACE("StartService returned error %u (%s)\n", r, (r == ERROR_SUCCESS) ? "ok":"failed");
1717
1718 return r;
1719 }
1720
1721 /*
1722 * create_local_service() - start a COM server in a service
1723 *
1724 * To start a Local Service, we read the AppID value under
1725 * the class's CLSID key, then open the HKCR\\AppId key specified
1726 * there and check for a LocalService value.
1727 *
1728 * Note: Local Services are not supported under Windows 9x
1729 */
1730 static HRESULT create_local_service(REFCLSID rclsid)
1731 {
1732 HRESULT hres;
1733 WCHAR buf[CHARS_IN_GUID];
1734 static const WCHAR szLocalService[] = { 'L','o','c','a','l','S','e','r','v','i','c','e',0 };
1735 static const WCHAR szServiceParams[] = {'S','e','r','v','i','c','e','P','a','r','a','m','s',0};
1736 HKEY hkey;
1737 LONG r;
1738 DWORD type, sz;
1739
1740 TRACE("Attempting to start Local service for %s\n", debugstr_guid(rclsid));
1741
1742 hres = COM_OpenKeyForAppIdFromCLSID(rclsid, KEY_READ, &hkey);
1743 if (FAILED(hres))
1744 return hres;
1745
1746 /* read the LocalService and ServiceParameters values from the AppID key */
1747 sz = sizeof buf;
1748 r = RegQueryValueExW(hkey, szLocalService, NULL, &type, (LPBYTE)buf, &sz);
1749 if (r==ERROR_SUCCESS && type==REG_SZ)
1750 {
1751 DWORD num_args = 0;
1752 LPWSTR args[1] = { NULL };
1753
1754 /*
1755 * FIXME: I'm not really sure how to deal with the service parameters.
1756 * I suspect that the string returned from RegQueryValueExW
1757 * should be split into a number of arguments by spaces.
1758 * It would make more sense if ServiceParams contained a
1759 * REG_MULTI_SZ here, but it's a REG_SZ for the services
1760 * that I'm interested in for the moment.
1761 */
1762 r = RegQueryValueExW(hkey, szServiceParams, NULL, &type, NULL, &sz);
1763 if (r == ERROR_SUCCESS && type == REG_SZ && sz)
1764 {
1765 args[0] = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sz);
1766 num_args++;
1767 RegQueryValueExW(hkey, szServiceParams, NULL, &type, (LPBYTE)args[0], &sz);
1768 }
1769 r = start_local_service(buf, num_args, (LPCWSTR *)args);
1770 if (r != ERROR_SUCCESS)
1771 hres = REGDB_E_CLASSNOTREG; /* FIXME: check retval */
1772 HeapFree(GetProcessHeap(),0,args[0]);
1773 }
1774 else
1775 {
1776 WARN("No LocalService value\n");
1777 hres = REGDB_E_CLASSNOTREG; /* FIXME: check retval */
1778 }
1779 RegCloseKey(hkey);
1780
1781 return hres;
1782 }
1783
1784
1785 static void get_localserver_pipe_name(WCHAR *pipefn, REFCLSID rclsid)
1786 {
1787 static const WCHAR wszPipeRef[] = {'\\','\\','.','\\','p','i','p','e','\\',0};
1788 strcpyW(pipefn, wszPipeRef);
1789 StringFromGUID2(rclsid, pipefn + sizeof(wszPipeRef)/sizeof(wszPipeRef[0]) - 1, CHARS_IN_GUID);
1790 }
1791
1792 /* FIXME: should call to rpcss instead */
1793 HRESULT RPC_GetLocalClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
1794 {
1795 HRESULT hres;
1796 HANDLE hPipe;
1797 WCHAR pipefn[100];
1798 DWORD res, bufferlen;
1799 char marshalbuffer[200];
1800 IStream *pStm;
1801 LARGE_INTEGER seekto;
1802 ULARGE_INTEGER newpos;
1803 int tries = 0;
1804
1805 static const int MAXTRIES = 30; /* 30 seconds */
1806
1807 TRACE("rclsid=%s, iid=%s\n", debugstr_guid(rclsid), debugstr_guid(iid));
1808
1809 get_localserver_pipe_name(pipefn, rclsid);
1810
1811 while (tries++ < MAXTRIES) {
1812 TRACE("waiting for %s\n", debugstr_w(pipefn));
1813
1814 WaitNamedPipeW( pipefn, NMPWAIT_WAIT_FOREVER );
1815 hPipe = CreateFileW(pipefn, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, 0);
1816 if (hPipe == INVALID_HANDLE_VALUE) {
1817 DWORD index;
1818 DWORD start_ticks;
1819 HANDLE process = 0;
1820 if (tries == 1) {
1821 if ( (hres = create_local_service(rclsid)) &&
1822 (hres = create_server(rclsid, &process)) )
1823 return hres;
1824 } else {
1825 WARN("Connecting to %s, no response yet, retrying: le is %u\n", debugstr_w(pipefn), GetLastError());
1826 }
1827 /* wait for one second, even if messages arrive */
1828 start_ticks = GetTickCount();
1829 do {
1830 if (SUCCEEDED(CoWaitForMultipleHandles(0, 1000, (process != 0),
1831 &process, &index)) && process && !index)
1832 {
1833 WARN( "server for %s failed to start\n", debugstr_guid(rclsid) );
1834 CloseHandle( hPipe );
1835 CloseHandle( process );
1836 return E_NOINTERFACE;
1837 }
1838 } while (GetTickCount() - start_ticks < 1000);
1839 if (process) CloseHandle( process );
1840 continue;
1841 }
1842 bufferlen = 0;
1843 if (!ReadFile(hPipe,marshalbuffer,sizeof(marshalbuffer),&bufferlen,NULL)) {
1844 FIXME("Failed to read marshal id from classfactory of %s.\n",debugstr_guid(rclsid));
1845 Sleep(1000);
1846 continue;
1847 }
1848 TRACE("read marshal id from pipe\n");
1849 CloseHandle(hPipe);
1850 break;
1851 }
1852
1853 if (tries >= MAXTRIES)
1854 return E_NOINTERFACE;
1855
1856 hres = CreateStreamOnHGlobal(0,TRUE,&pStm);
1857 if (hres) return hres;
1858 hres = IStream_Write(pStm,marshalbuffer,bufferlen,&res);
1859 if (hres) goto out;
1860 seekto.u.LowPart = 0;seekto.u.HighPart = 0;
1861 hres = IStream_Seek(pStm,seekto,STREAM_SEEK_SET,&newpos);
1862
1863 TRACE("unmarshalling classfactory\n");
1864 hres = CoUnmarshalInterface(pStm,&IID_IClassFactory,ppv);
1865 out:
1866 IStream_Release(pStm);
1867 return hres;
1868 }
1869
1870
1871 struct local_server_params
1872 {
1873 CLSID clsid;
1874 IStream *stream;
1875 HANDLE ready_event;
1876 HANDLE stop_event;
1877 HANDLE thread;
1878 BOOL multi_use;
1879 };
1880
1881 /* FIXME: should call to rpcss instead */
1882 static DWORD WINAPI local_server_thread(LPVOID param)
1883 {
1884 struct local_server_params * lsp = param;
1885 WCHAR pipefn[100];
1886 HRESULT hres;
1887 IStream *pStm = lsp->stream;
1888 STATSTG ststg;
1889 unsigned char *buffer;
1890 int buflen;
1891 LARGE_INTEGER seekto;
1892 ULARGE_INTEGER newpos;
1893 ULONG res;
1894 BOOL multi_use = lsp->multi_use;
1895 OVERLAPPED ovl;
1896 HANDLE pipe_event, hPipe, new_pipe;
1897 DWORD bytes;
1898
1899 TRACE("Starting threader for %s.\n",debugstr_guid(&lsp->clsid));
1900
1901 memset(&ovl, 0, sizeof(ovl));
1902 get_localserver_pipe_name(pipefn, &lsp->clsid);
1903 ovl.hEvent = pipe_event = CreateEventW(NULL, FALSE, FALSE, NULL);
1904
1905 hPipe = CreateNamedPipeW( pipefn, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1906 PIPE_TYPE_BYTE|PIPE_WAIT, PIPE_UNLIMITED_INSTANCES,
1907 4096, 4096, 500 /* 0.5 second timeout */, NULL );
1908 if (hPipe == INVALID_HANDLE_VALUE)
1909 {
1910 FIXME("pipe creation failed for %s, le is %u\n", debugstr_w(pipefn), GetLastError());
1911 CloseHandle(pipe_event);
1912 return 1;
1913 }
1914
1915 SetEvent(lsp->ready_event);
1916
1917 while (1) {
1918 if (!ConnectNamedPipe(hPipe, &ovl))
1919 {
1920 DWORD error = GetLastError();
1921 if (error == ERROR_IO_PENDING)
1922 {
1923 HANDLE handles[2] = { pipe_event, lsp->stop_event };
1924 DWORD ret;
1925 ret = WaitForMultipleObjects(2, handles, FALSE, INFINITE);
1926 if (ret != WAIT_OBJECT_0)
1927 {
1928 CloseHandle(hPipe);
1929 break;
1930 }
1931 }
1932 /* client already connected isn't an error */
1933 else if (error != ERROR_PIPE_CONNECTED)
1934 {
1935 ERR("ConnectNamedPipe failed with error %d\n", GetLastError());
1936 CloseHandle(hPipe);
1937 break;
1938 }
1939 }
1940
1941 TRACE("marshalling IClassFactory to client\n");
1942
1943 hres = IStream_Stat(pStm,&ststg,STATFLAG_NONAME);
1944 if (hres)
1945 {
1946 CloseHandle(hPipe);
1947 CloseHandle(pipe_event);
1948 return hres;
1949 }
1950
1951 seekto.u.LowPart = 0;
1952 seekto.u.HighPart = 0;
1953 hres = IStream_Seek(pStm,seekto,STREAM_SEEK_SET,&newpos);
1954 if (hres) {
1955 FIXME("IStream_Seek failed, %x\n",hres);
1956 CloseHandle(hPipe);
1957 CloseHandle(pipe_event);
1958 return hres;
1959 }
1960
1961 buflen = ststg.cbSize.u.LowPart;
1962 buffer = HeapAlloc(GetProcessHeap(),0,buflen);
1963
1964 hres = IStream_Read(pStm,buffer,buflen,&res);
1965 if (hres) {
1966 FIXME("Stream Read failed, %x\n",hres);
1967 CloseHandle(hPipe);
1968 CloseHandle(pipe_event);
1969 HeapFree(GetProcessHeap(),0,buffer);
1970 return hres;
1971 }
1972
1973 WriteFile(hPipe,buffer,buflen,&res,&ovl);
1974 GetOverlappedResult(hPipe, &ovl, &bytes, TRUE);
1975 HeapFree(GetProcessHeap(),0,buffer);
1976
1977 FlushFileBuffers(hPipe);
1978 DisconnectNamedPipe(hPipe);
1979 TRACE("done marshalling IClassFactory\n");
1980
1981 if (!multi_use)
1982 {
1983 TRACE("single use object, shutting down pipe %s\n", debugstr_w(pipefn));
1984 CloseHandle(hPipe);
1985 break;
1986 }
1987 new_pipe = CreateNamedPipeW( pipefn, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1988 PIPE_TYPE_BYTE|PIPE_WAIT, PIPE_UNLIMITED_INSTANCES,
1989 4096, 4096, 500 /* 0.5 second timeout */, NULL );
1990 CloseHandle(hPipe);
1991 if (new_pipe == INVALID_HANDLE_VALUE)
1992 {
1993 FIXME("pipe creation failed for %s, le is %u\n", debugstr_w(pipefn), GetLastError());
1994 CloseHandle(pipe_event);
1995 return 1;
1996 }
1997 hPipe = new_pipe;
1998 }
1999 CloseHandle(pipe_event);
2000 return 0;
2001 }
2002
2003 /* starts listening for a local server */
2004 HRESULT RPC_StartLocalServer(REFCLSID clsid, IStream *stream, BOOL multi_use, void **registration)
2005 {
2006 DWORD tid;
2007 struct local_server_params *lsp;
2008
2009 lsp = HeapAlloc(GetProcessHeap(), 0, sizeof(*lsp));
2010 if (!lsp)
2011 return E_OUTOFMEMORY;
2012
2013 lsp->clsid = *clsid;
2014 lsp->stream = stream;
2015 IStream_AddRef(stream);
2016 lsp->ready_event = CreateEventW(NULL, FALSE, FALSE, NULL);
2017 if (!lsp->ready_event)
2018 {
2019 HeapFree(GetProcessHeap(), 0, lsp);
2020 return HRESULT_FROM_WIN32(GetLastError());
2021 }
2022 lsp->stop_event = CreateEventW(NULL, FALSE, FALSE, NULL);
2023 if (!lsp->stop_event)
2024 {
2025 CloseHandle(lsp->ready_event);
2026 HeapFree(GetProcessHeap(), 0, lsp);
2027 return HRESULT_FROM_WIN32(GetLastError());
2028 }
2029 lsp->multi_use = multi_use;
2030
2031 lsp->thread = CreateThread(NULL, 0, local_server_thread, lsp, 0, &tid);
2032 if (!lsp->thread)
2033 {
2034 CloseHandle(lsp->ready_event);
2035 CloseHandle(lsp->stop_event);
2036 HeapFree(GetProcessHeap(), 0, lsp);
2037 return HRESULT_FROM_WIN32(GetLastError());
2038 }
2039
2040 WaitForSingleObject(lsp->ready_event, INFINITE);
2041 CloseHandle(lsp->ready_event);
2042 lsp->ready_event = NULL;
2043
2044 *registration = lsp;
2045 return S_OK;
2046 }
2047
2048 /* stops listening for a local server */
2049 void RPC_StopLocalServer(void *registration)
2050 {
2051 struct local_server_params *lsp = registration;
2052
2053 /* signal local_server_thread to stop */
2054 SetEvent(lsp->stop_event);
2055 /* wait for it to exit */
2056 WaitForSingleObject(lsp->thread, INFINITE);
2057
2058 IStream_Release(lsp->stream);
2059 CloseHandle(lsp->stop_event);
2060 CloseHandle(lsp->thread);
2061 HeapFree(GetProcessHeap(), 0, lsp);
2062 }
Maarten's multimedia branch