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wineandroid: Create the top-level view on desktop window creation.
[wine.git] / dlls / ole32 / rpc.c
blobec5dc598b7b54780937d2735df3fbfb172dc14e5
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
32 #include "windef.h"
33 #include "winbase.h"
34 #include "winuser.h"
35 #include "winsvc.h"
36 #include "objbase.h"
37 #include "ole2.h"
38 #include "rpc.h"
39 #include "winerror.h"
40 #include "winreg.h"
41 #include "servprov.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 IRpcChannelBuffer IRpcChannelBuffer_iface;
98 LONG refs;
99
100 DWORD dest_context; /* returned from GetDestCtx */
101 void *dest_context_data; /* returned from GetDestCtx */
102 } RpcChannelBuffer;
103
104 typedef struct
105 {
106 RpcChannelBuffer super; /* superclass */
107
108 RPC_BINDING_HANDLE bind; /* handle to the remote server */
109 OXID oxid; /* apartment in which the channel is valid */
110 DWORD server_pid; /* id of server process */
111 HANDLE event; /* cached event handle */
112 } ClientRpcChannelBuffer;
113
114 struct dispatch_params
115 {
116 RPCOLEMESSAGE *msg; /* message */
117 IRpcStubBuffer *stub; /* stub buffer, if applicable */
118 IRpcChannelBuffer *chan; /* server channel buffer, if applicable */
119 IID iid; /* ID of interface being called */
120 IUnknown *iface; /* interface being called */
121 HANDLE handle; /* handle that will become signaled when call finishes */
122 BOOL bypass_rpcrt; /* bypass RPC runtime? */
123 RPC_STATUS status; /* status (out) */
124 HRESULT hr; /* hresult (out) */
125 };
126
127 struct message_state
128 {
129 RPC_BINDING_HANDLE binding_handle;
130 ULONG prefix_data_len;
131 SChannelHookCallInfo channel_hook_info;
132 BOOL bypass_rpcrt;
133
134 /* client only */
135 HWND target_hwnd;
136 DWORD target_tid;
137 struct dispatch_params params;
138 };
139
140 typedef struct
141 {
142 ULONG conformance; /* NDR */
143 GUID id;
144 ULONG size;
145 /* [size_is((size+7)&~7)] */ unsigned char data[1];
146 } WIRE_ORPC_EXTENT;
147
148 typedef struct
149 {
150 ULONG size;
151 ULONG reserved;
152 unsigned char extent[1];
153 } WIRE_ORPC_EXTENT_ARRAY;
154
155 typedef struct
156 {
157 ULONG version;
158 ULONG flags;
159 ULONG reserved1;
160 GUID cid;
161 unsigned char extensions[1];
162 } WIRE_ORPCTHIS;
163
164 typedef struct
165 {
166 ULONG flags;
167 unsigned char extensions[1];
168 } WIRE_ORPCTHAT;
169
170 struct channel_hook_entry
171 {
172 struct list entry;
173 GUID id;
174 IChannelHook *hook;
175 };
176
177 struct channel_hook_buffer_data
178 {
179 GUID id;
180 ULONG extension_size;
181 };
182
183
184 static HRESULT unmarshal_ORPCTHAT(RPC_MESSAGE *msg, ORPCTHAT *orpcthat,
185 ORPC_EXTENT_ARRAY *orpc_ext_array, WIRE_ORPC_EXTENT **first_wire_orpc_extent);
186
187 /* Channel Hook Functions */
188
189 static ULONG ChannelHooks_ClientGetSize(SChannelHookCallInfo *info,
190 struct channel_hook_buffer_data **data, unsigned int *hook_count,
191 ULONG *extension_count)
192 {
193 struct channel_hook_entry *entry;
194 ULONG total_size = 0;
195 unsigned int hook_index = 0;
196
197 *hook_count = 0;
198 *extension_count = 0;
199
200 EnterCriticalSection(&csChannelHook);
201
202 LIST_FOR_EACH_ENTRY(entry, &channel_hooks, struct channel_hook_entry, entry)
203 (*hook_count)++;
204
205 if (*hook_count)
206 *data = HeapAlloc(GetProcessHeap(), 0, *hook_count * sizeof(struct channel_hook_buffer_data));
207 else
208 *data = NULL;
209
210 LIST_FOR_EACH_ENTRY(entry, &channel_hooks, struct channel_hook_entry, entry)
211 {
212 ULONG extension_size = 0;
213
214 IChannelHook_ClientGetSize(entry->hook, &entry->id, &info->iid, &extension_size);
215
216 TRACE("%s: extension_size = %u\n", debugstr_guid(&entry->id), extension_size);
217
218 extension_size = (extension_size+7)&~7;
219 (*data)[hook_index].id = entry->id;
220 (*data)[hook_index].extension_size = extension_size;
221
222 /* an extension is only put onto the wire if it has data to write */
223 if (extension_size)
224 {
225 total_size += FIELD_OFFSET(WIRE_ORPC_EXTENT, data[extension_size]);
226 (*extension_count)++;
227 }
228
229 hook_index++;
230 }
231
232 LeaveCriticalSection(&csChannelHook);
233
234 return total_size;
235 }
236
237 static unsigned char * ChannelHooks_ClientFillBuffer(SChannelHookCallInfo *info,
238 unsigned char *buffer, struct channel_hook_buffer_data *data,
239 unsigned int hook_count)
240 {
241 struct channel_hook_entry *entry;
242
243 EnterCriticalSection(&csChannelHook);
244
245 LIST_FOR_EACH_ENTRY(entry, &channel_hooks, struct channel_hook_entry, entry)
246 {
247 unsigned int i;
248 ULONG extension_size = 0;
249 WIRE_ORPC_EXTENT *wire_orpc_extent = (WIRE_ORPC_EXTENT *)buffer;
250
251 for (i = 0; i < hook_count; i++)
252 if (IsEqualGUID(&entry->id, &data[i].id))
253 extension_size = data[i].extension_size;
254
255 /* an extension is only put onto the wire if it has data to write */
256 if (!extension_size)
257 continue;
258
259 IChannelHook_ClientFillBuffer(entry->hook, &entry->id, &info->iid,
260 &extension_size, buffer + FIELD_OFFSET(WIRE_ORPC_EXTENT, data[0]));
261
262 TRACE("%s: extension_size = %u\n", debugstr_guid(&entry->id), extension_size);
263
264 /* FIXME: set unused portion of wire_orpc_extent->data to 0? */
265
266 wire_orpc_extent->conformance = (extension_size+7)&~7;
267 wire_orpc_extent->size = extension_size;
268 wire_orpc_extent->id = entry->id;
269 buffer += FIELD_OFFSET(WIRE_ORPC_EXTENT, data[wire_orpc_extent->conformance]);
270 }
271
272 LeaveCriticalSection(&csChannelHook);
273
274 return buffer;
275 }
276
277 static void ChannelHooks_ServerNotify(SChannelHookCallInfo *info,
278 DWORD lDataRep, WIRE_ORPC_EXTENT *first_wire_orpc_extent,
279 ULONG extension_count)
280 {
281 struct channel_hook_entry *entry;
282 ULONG i;
283
284 EnterCriticalSection(&csChannelHook);
285
286 LIST_FOR_EACH_ENTRY(entry, &channel_hooks, struct channel_hook_entry, entry)
287 {
288 WIRE_ORPC_EXTENT *wire_orpc_extent;
289 for (i = 0, wire_orpc_extent = first_wire_orpc_extent;
290 i < extension_count;
291 i++, wire_orpc_extent = (WIRE_ORPC_EXTENT *)&wire_orpc_extent->data[wire_orpc_extent->conformance])
292 {
293 if (IsEqualGUID(&entry->id, &wire_orpc_extent->id))
294 break;
295 }
296 if (i == extension_count) wire_orpc_extent = NULL;
297
298 IChannelHook_ServerNotify(entry->hook, &entry->id, &info->iid,
299 wire_orpc_extent ? wire_orpc_extent->size : 0,
300 wire_orpc_extent ? wire_orpc_extent->data : NULL,
301 lDataRep);
302 }
303
304 LeaveCriticalSection(&csChannelHook);
305 }
306
307 static ULONG ChannelHooks_ServerGetSize(SChannelHookCallInfo *info,
308 struct channel_hook_buffer_data **data, unsigned int *hook_count,
309 ULONG *extension_count)
310 {
311 struct channel_hook_entry *entry;
312 ULONG total_size = 0;
313 unsigned int hook_index = 0;
314
315 *hook_count = 0;
316 *extension_count = 0;
317
318 EnterCriticalSection(&csChannelHook);
319
320 LIST_FOR_EACH_ENTRY(entry, &channel_hooks, struct channel_hook_entry, entry)
321 (*hook_count)++;
322
323 if (*hook_count)
324 *data = HeapAlloc(GetProcessHeap(), 0, *hook_count * sizeof(struct channel_hook_buffer_data));
325 else
326 *data = NULL;
327
328 LIST_FOR_EACH_ENTRY(entry, &channel_hooks, struct channel_hook_entry, entry)
329 {
330 ULONG extension_size = 0;
331
332 IChannelHook_ServerGetSize(entry->hook, &entry->id, &info->iid, S_OK,
333 &extension_size);
334
335 TRACE("%s: extension_size = %u\n", debugstr_guid(&entry->id), extension_size);
336
337 extension_size = (extension_size+7)&~7;
338 (*data)[hook_index].id = entry->id;
339 (*data)[hook_index].extension_size = extension_size;
340
341 /* an extension is only put onto the wire if it has data to write */
342 if (extension_size)
343 {
344 total_size += FIELD_OFFSET(WIRE_ORPC_EXTENT, data[extension_size]);
345 (*extension_count)++;
346 }
347
348 hook_index++;
349 }
350
351 LeaveCriticalSection(&csChannelHook);
352
353 return total_size;
354 }
355
356 static unsigned char * ChannelHooks_ServerFillBuffer(SChannelHookCallInfo *info,
357 unsigned char *buffer, struct channel_hook_buffer_data *data,
358 unsigned int hook_count)
359 {
360 struct channel_hook_entry *entry;
361
362 EnterCriticalSection(&csChannelHook);
363
364 LIST_FOR_EACH_ENTRY(entry, &channel_hooks, struct channel_hook_entry, entry)
365 {
366 unsigned int i;
367 ULONG extension_size = 0;
368 WIRE_ORPC_EXTENT *wire_orpc_extent = (WIRE_ORPC_EXTENT *)buffer;
369
370 for (i = 0; i < hook_count; i++)
371 if (IsEqualGUID(&entry->id, &data[i].id))
372 extension_size = data[i].extension_size;
373
374 /* an extension is only put onto the wire if it has data to write */
375 if (!extension_size)
376 continue;
377
378 IChannelHook_ServerFillBuffer(entry->hook, &entry->id, &info->iid,
379 &extension_size, buffer + FIELD_OFFSET(WIRE_ORPC_EXTENT, data[0]),
380 S_OK);
381
382 TRACE("%s: extension_size = %u\n", debugstr_guid(&entry->id), extension_size);
383
384 /* FIXME: set unused portion of wire_orpc_extent->data to 0? */
385
386 wire_orpc_extent->conformance = (extension_size+7)&~7;
387 wire_orpc_extent->size = extension_size;
388 wire_orpc_extent->id = entry->id;
389 buffer += FIELD_OFFSET(WIRE_ORPC_EXTENT, data[wire_orpc_extent->conformance]);
390 }
391
392 LeaveCriticalSection(&csChannelHook);
393
394 return buffer;
395 }
396
397 static void ChannelHooks_ClientNotify(SChannelHookCallInfo *info,
398 DWORD lDataRep, WIRE_ORPC_EXTENT *first_wire_orpc_extent,
399 ULONG extension_count, HRESULT hrFault)
400 {
401 struct channel_hook_entry *entry;
402 ULONG i;
403
404 EnterCriticalSection(&csChannelHook);
405
406 LIST_FOR_EACH_ENTRY(entry, &channel_hooks, struct channel_hook_entry, entry)
407 {
408 WIRE_ORPC_EXTENT *wire_orpc_extent;
409 for (i = 0, wire_orpc_extent = first_wire_orpc_extent;
410 i < extension_count;
411 i++, wire_orpc_extent = (WIRE_ORPC_EXTENT *)&wire_orpc_extent->data[wire_orpc_extent->conformance])
412 {
413 if (IsEqualGUID(&entry->id, &wire_orpc_extent->id))
414 break;
415 }
416 if (i == extension_count) wire_orpc_extent = NULL;
417
418 IChannelHook_ClientNotify(entry->hook, &entry->id, &info->iid,
419 wire_orpc_extent ? wire_orpc_extent->size : 0,
420 wire_orpc_extent ? wire_orpc_extent->data : NULL,
421 lDataRep, hrFault);
422 }
423
424 LeaveCriticalSection(&csChannelHook);
425 }
426
427 HRESULT RPC_RegisterChannelHook(REFGUID rguid, IChannelHook *hook)
428 {
429 struct channel_hook_entry *entry;
430
431 TRACE("(%s, %p)\n", debugstr_guid(rguid), hook);
432
433 entry = HeapAlloc(GetProcessHeap(), 0, sizeof(*entry));
434 if (!entry)
435 return E_OUTOFMEMORY;
436
437 entry->id = *rguid;
438 entry->hook = hook;
439 IChannelHook_AddRef(hook);
440
441 EnterCriticalSection(&csChannelHook);
442 list_add_tail(&channel_hooks, &entry->entry);
443 LeaveCriticalSection(&csChannelHook);
444
445 return S_OK;
446 }
447
448 void RPC_UnregisterAllChannelHooks(void)
449 {
450 struct channel_hook_entry *cursor;
451 struct channel_hook_entry *cursor2;
452
453 EnterCriticalSection(&csChannelHook);
454 LIST_FOR_EACH_ENTRY_SAFE(cursor, cursor2, &channel_hooks, struct channel_hook_entry, entry)
455 HeapFree(GetProcessHeap(), 0, cursor);
456 LeaveCriticalSection(&csChannelHook);
457 DeleteCriticalSection(&csChannelHook);
458 DeleteCriticalSection(&csRegIf);
459 }
460
461 /* RPC Channel Buffer Functions */
462
463 static HRESULT WINAPI RpcChannelBuffer_QueryInterface(IRpcChannelBuffer *iface, REFIID riid, LPVOID *ppv)
464 {
465 *ppv = NULL;
466 if (IsEqualIID(riid,&IID_IRpcChannelBuffer) || IsEqualIID(riid,&IID_IUnknown))
467 {
468 *ppv = iface;
469 IRpcChannelBuffer_AddRef(iface);
470 return S_OK;
471 }
472 return E_NOINTERFACE;
473 }
474
475 static ULONG WINAPI RpcChannelBuffer_AddRef(LPRPCCHANNELBUFFER iface)
476 {
477 RpcChannelBuffer *This = (RpcChannelBuffer *)iface;
478 return InterlockedIncrement(&This->refs);
479 }
480
481 static ULONG WINAPI ServerRpcChannelBuffer_Release(LPRPCCHANNELBUFFER iface)
482 {
483 RpcChannelBuffer *This = (RpcChannelBuffer *)iface;
484 ULONG ref;
485
486 ref = InterlockedDecrement(&This->refs);
487 if (ref)
488 return ref;
489
490 HeapFree(GetProcessHeap(), 0, This);
491 return 0;
492 }
493
494 static ULONG WINAPI ClientRpcChannelBuffer_Release(LPRPCCHANNELBUFFER iface)
495 {
496 ClientRpcChannelBuffer *This = (ClientRpcChannelBuffer *)iface;
497 ULONG ref;
498
499 ref = InterlockedDecrement(&This->super.refs);
500 if (ref)
501 return ref;
502
503 if (This->event) CloseHandle(This->event);
504 RpcBindingFree(&This->bind);
505 HeapFree(GetProcessHeap(), 0, This);
506 return 0;
507 }
508
509 static HRESULT WINAPI ServerRpcChannelBuffer_GetBuffer(LPRPCCHANNELBUFFER iface, RPCOLEMESSAGE* olemsg, REFIID riid)
510 {
511 RpcChannelBuffer *This = (RpcChannelBuffer *)iface;
512 RPC_MESSAGE *msg = (RPC_MESSAGE *)olemsg;
513 RPC_STATUS status;
514 ORPCTHAT *orpcthat;
515 struct message_state *message_state;
516 ULONG extensions_size;
517 struct channel_hook_buffer_data *channel_hook_data;
518 unsigned int channel_hook_count;
519 ULONG extension_count;
520
521 TRACE("(%p)->(%p,%s)\n", This, olemsg, debugstr_guid(riid));
522
523 message_state = msg->Handle;
524 /* restore the binding handle and the real start of data */
525 msg->Handle = message_state->binding_handle;
526 msg->Buffer = (char *)msg->Buffer - message_state->prefix_data_len;
527
528 extensions_size = ChannelHooks_ServerGetSize(&message_state->channel_hook_info,
529 &channel_hook_data, &channel_hook_count, &extension_count);
530
531 msg->BufferLength += FIELD_OFFSET(WIRE_ORPCTHAT, extensions) + sizeof(DWORD);
532 if (extensions_size)
533 {
534 msg->BufferLength += FIELD_OFFSET(WIRE_ORPC_EXTENT_ARRAY, extent[2*sizeof(DWORD) + extensions_size]);
535 if (extension_count & 1)
536 msg->BufferLength += FIELD_OFFSET(WIRE_ORPC_EXTENT, data[0]);
537 }
538
539 if (message_state->bypass_rpcrt)
540 {
541 msg->Buffer = HeapAlloc(GetProcessHeap(), 0, msg->BufferLength);
542 if (msg->Buffer)
543 status = RPC_S_OK;
544 else
545 {
546 HeapFree(GetProcessHeap(), 0, channel_hook_data);
547 return E_OUTOFMEMORY;
548 }
549 }
550 else
551 status = I_RpcGetBuffer(msg);
552
553 orpcthat = msg->Buffer;
554 msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(WIRE_ORPCTHAT, extensions);
555
556 orpcthat->flags = ORPCF_NULL /* FIXME? */;
557
558 /* NDR representation of orpcthat->extensions */
559 *(DWORD *)msg->Buffer = extensions_size ? 1 : 0;
560 msg->Buffer = (char *)msg->Buffer + sizeof(DWORD);
561
562 if (extensions_size)
563 {
564 WIRE_ORPC_EXTENT_ARRAY *orpc_extent_array = msg->Buffer;
565 orpc_extent_array->size = extension_count;
566 orpc_extent_array->reserved = 0;
567 msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(WIRE_ORPC_EXTENT_ARRAY, extent);
568 /* NDR representation of orpc_extent_array->extent */
569 *(DWORD *)msg->Buffer = 1;
570 msg->Buffer = (char *)msg->Buffer + sizeof(DWORD);
571 /* NDR representation of [size_is] attribute of orpc_extent_array->extent */
572 *(DWORD *)msg->Buffer = (extension_count + 1) & ~1;
573 msg->Buffer = (char *)msg->Buffer + sizeof(DWORD);
574
575 msg->Buffer = ChannelHooks_ServerFillBuffer(&message_state->channel_hook_info,
576 msg->Buffer, channel_hook_data, channel_hook_count);
577
578 /* we must add a dummy extension if there is an odd extension
579 * count to meet the contract specified by the size_is attribute */
580 if (extension_count & 1)
581 {
582 WIRE_ORPC_EXTENT *wire_orpc_extent = msg->Buffer;
583 wire_orpc_extent->conformance = 0;
584 wire_orpc_extent->id = GUID_NULL;
585 wire_orpc_extent->size = 0;
586 msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(WIRE_ORPC_EXTENT, data[0]);
587 }
588 }
589
590 HeapFree(GetProcessHeap(), 0, channel_hook_data);
591
592 /* store the prefixed data length so that we can restore the real buffer
593 * later */
594 message_state->prefix_data_len = (char *)msg->Buffer - (char *)orpcthat;
595 msg->BufferLength -= message_state->prefix_data_len;
596 /* save away the message state again */
597 msg->Handle = message_state;
598
599 TRACE("-- %d\n", status);
600
601 return HRESULT_FROM_WIN32(status);
602 }
603
604 static HANDLE ClientRpcChannelBuffer_GetEventHandle(ClientRpcChannelBuffer *This)
605 {
606 HANDLE event = InterlockedExchangePointer(&This->event, NULL);
607
608 /* Note: must be auto-reset event so we can reuse it without a call
609 * to ResetEvent */
610 if (!event) event = CreateEventW(NULL, FALSE, FALSE, NULL);
611
612 return event;
613 }
614
615 static void ClientRpcChannelBuffer_ReleaseEventHandle(ClientRpcChannelBuffer *This, HANDLE event)
616 {
617 if (InterlockedCompareExchangePointer(&This->event, event, NULL))
618 /* already a handle cached in This */
619 CloseHandle(event);
620 }
621
622 static HRESULT WINAPI ClientRpcChannelBuffer_GetBuffer(LPRPCCHANNELBUFFER iface, RPCOLEMESSAGE* olemsg, REFIID riid)
623 {
624 ClientRpcChannelBuffer *This = (ClientRpcChannelBuffer *)iface;
625 RPC_MESSAGE *msg = (RPC_MESSAGE *)olemsg;
626 RPC_CLIENT_INTERFACE *cif;
627 RPC_STATUS status;
628 ORPCTHIS *orpcthis;
629 struct message_state *message_state;
630 ULONG extensions_size;
631 struct channel_hook_buffer_data *channel_hook_data;
632 unsigned int channel_hook_count;
633 ULONG extension_count;
634 IPID ipid;
635 HRESULT hr;
636 APARTMENT *apt = NULL;
637
638 TRACE("(%p)->(%p,%s)\n", This, olemsg, debugstr_guid(riid));
639
640 cif = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(RPC_CLIENT_INTERFACE));
641 if (!cif)
642 return E_OUTOFMEMORY;
643
644 message_state = HeapAlloc(GetProcessHeap(), 0, sizeof(*message_state));
645 if (!message_state)
646 {
647 HeapFree(GetProcessHeap(), 0, cif);
648 return E_OUTOFMEMORY;
649 }
650
651 cif->Length = sizeof(RPC_CLIENT_INTERFACE);
652 /* RPC interface ID = COM interface ID */
653 cif->InterfaceId.SyntaxGUID = *riid;
654 /* COM objects always have a version of 0.0 */
655 cif->InterfaceId.SyntaxVersion.MajorVersion = 0;
656 cif->InterfaceId.SyntaxVersion.MinorVersion = 0;
657 msg->Handle = This->bind;
658 msg->RpcInterfaceInformation = cif;
659
660 message_state->prefix_data_len = 0;
661 message_state->binding_handle = This->bind;
662
663 message_state->channel_hook_info.iid = *riid;
664 message_state->channel_hook_info.cbSize = sizeof(message_state->channel_hook_info);
665 message_state->channel_hook_info.uCausality = COM_CurrentCausalityId();
666 message_state->channel_hook_info.dwServerPid = This->server_pid;
667 message_state->channel_hook_info.iMethod = msg->ProcNum & ~RPC_FLAGS_VALID_BIT;
668 message_state->channel_hook_info.pObject = NULL; /* only present on server-side */
669 message_state->target_hwnd = NULL;
670 message_state->target_tid = 0;
671 memset(&message_state->params, 0, sizeof(message_state->params));
672
673 extensions_size = ChannelHooks_ClientGetSize(&message_state->channel_hook_info,
674 &channel_hook_data, &channel_hook_count, &extension_count);
675
676 msg->BufferLength += FIELD_OFFSET(WIRE_ORPCTHIS, extensions) + sizeof(DWORD);
677 if (extensions_size)
678 {
679 msg->BufferLength += FIELD_OFFSET(WIRE_ORPC_EXTENT_ARRAY, extent[2*sizeof(DWORD) + extensions_size]);
680 if (extension_count & 1)
681 msg->BufferLength += FIELD_OFFSET(WIRE_ORPC_EXTENT, data[0]);
682 }
683
684 RpcBindingInqObject(message_state->binding_handle, &ipid);
685 hr = ipid_get_dispatch_params(&ipid, &apt, NULL, &message_state->params.stub,
686 &message_state->params.chan,
687 &message_state->params.iid,
688 &message_state->params.iface);
689 if (hr == S_OK)
690 {
691 /* stub, chan, iface and iid are unneeded in multi-threaded case as we go
692 * via the RPC runtime */
693 if (apt->multi_threaded)
694 {
695 IRpcStubBuffer_Release(message_state->params.stub);
696 message_state->params.stub = NULL;
697 IRpcChannelBuffer_Release(message_state->params.chan);
698 message_state->params.chan = NULL;
699 message_state->params.iface = NULL;
700 }
701 else
702 {
703 message_state->params.bypass_rpcrt = TRUE;
704 message_state->target_hwnd = apartment_getwindow(apt);
705 message_state->target_tid = apt->tid;
706 /* we assume later on that this being non-NULL is the indicator that
707 * means call directly instead of going through RPC runtime */
708 if (!message_state->target_hwnd)
709 ERR("window for apartment %s is NULL\n", wine_dbgstr_longlong(apt->oxid));
710 }
711 }
712 if (apt) apartment_release(apt);
713 message_state->params.handle = ClientRpcChannelBuffer_GetEventHandle(This);
714 /* Note: message_state->params.msg is initialised in
715 * ClientRpcChannelBuffer_SendReceive */
716
717 /* shortcut the RPC runtime */
718 if (message_state->target_hwnd)
719 {
720 msg->Buffer = HeapAlloc(GetProcessHeap(), 0, msg->BufferLength);
721 if (msg->Buffer)
722 status = RPC_S_OK;
723 else
724 status = ERROR_OUTOFMEMORY;
725 }
726 else
727 status = I_RpcGetBuffer(msg);
728
729 msg->Handle = message_state;
730
731 if (status == RPC_S_OK)
732 {
733 orpcthis = msg->Buffer;
734 msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(WIRE_ORPCTHIS, extensions);
735
736 orpcthis->version.MajorVersion = COM_MAJOR_VERSION;
737 orpcthis->version.MinorVersion = COM_MINOR_VERSION;
738 orpcthis->flags = message_state->channel_hook_info.dwServerPid ? ORPCF_LOCAL : ORPCF_NULL;
739 orpcthis->reserved1 = 0;
740 orpcthis->cid = message_state->channel_hook_info.uCausality;
741
742 /* NDR representation of orpcthis->extensions */
743 *(DWORD *)msg->Buffer = extensions_size ? 1 : 0;
744 msg->Buffer = (char *)msg->Buffer + sizeof(DWORD);
745
746 if (extensions_size)
747 {
748 ORPC_EXTENT_ARRAY *orpc_extent_array = msg->Buffer;
749 orpc_extent_array->size = extension_count;
750 orpc_extent_array->reserved = 0;
751 msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(WIRE_ORPC_EXTENT_ARRAY, extent);
752 /* NDR representation of orpc_extent_array->extent */
753 *(DWORD *)msg->Buffer = 1;
754 msg->Buffer = (char *)msg->Buffer + sizeof(DWORD);
755 /* NDR representation of [size_is] attribute of orpc_extent_array->extent */
756 *(DWORD *)msg->Buffer = (extension_count + 1) & ~1;
757 msg->Buffer = (char *)msg->Buffer + sizeof(DWORD);
758
759 msg->Buffer = ChannelHooks_ClientFillBuffer(&message_state->channel_hook_info,
760 msg->Buffer, channel_hook_data, channel_hook_count);
761
762 /* we must add a dummy extension if there is an odd extension
763 * count to meet the contract specified by the size_is attribute */
764 if (extension_count & 1)
765 {
766 WIRE_ORPC_EXTENT *wire_orpc_extent = msg->Buffer;
767 wire_orpc_extent->conformance = 0;
768 wire_orpc_extent->id = GUID_NULL;
769 wire_orpc_extent->size = 0;
770 msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(WIRE_ORPC_EXTENT, data[0]);
771 }
772 }
773
774 /* store the prefixed data length so that we can restore the real buffer
775 * pointer in ClientRpcChannelBuffer_SendReceive. */
776 message_state->prefix_data_len = (char *)msg->Buffer - (char *)orpcthis;
777 msg->BufferLength -= message_state->prefix_data_len;
778 }
779
780 HeapFree(GetProcessHeap(), 0, channel_hook_data);
781
782 TRACE("-- %d\n", status);
783
784 return HRESULT_FROM_WIN32(status);
785 }
786
787 static HRESULT WINAPI ServerRpcChannelBuffer_SendReceive(LPRPCCHANNELBUFFER iface, RPCOLEMESSAGE *olemsg, ULONG *pstatus)
788 {
789 FIXME("stub\n");
790 return E_NOTIMPL;
791 }
792
793 /* this thread runs an outgoing RPC */
794 static DWORD WINAPI rpc_sendreceive_thread(LPVOID param)
795 {
796 struct dispatch_params *data = param;
797
798 /* Note: I_RpcSendReceive doesn't raise exceptions like the higher-level
799 * RPC functions do */
800 data->status = I_RpcSendReceive((RPC_MESSAGE *)data->msg);
801
802 TRACE("completed with status 0x%x\n", data->status);
803
804 SetEvent(data->handle);
805
806 return 0;
807 }
808
809 static inline HRESULT ClientRpcChannelBuffer_IsCorrectApartment(ClientRpcChannelBuffer *This, APARTMENT *apt)
810 {
811 OXID oxid;
812 if (!apt)
813 return S_FALSE;
814 if (apartment_getoxid(apt, &oxid) != S_OK)
815 return S_FALSE;
816 if (This->oxid != oxid)
817 return S_FALSE;
818 return S_OK;
819 }
820
821 static HRESULT WINAPI ClientRpcChannelBuffer_SendReceive(LPRPCCHANNELBUFFER iface, RPCOLEMESSAGE *olemsg, ULONG *pstatus)
822 {
823 ClientRpcChannelBuffer *This = (ClientRpcChannelBuffer *)iface;
824 HRESULT hr;
825 RPC_MESSAGE *msg = (RPC_MESSAGE *)olemsg;
826 RPC_STATUS status;
827 DWORD index;
828 struct message_state *message_state;
829 ORPCTHAT orpcthat;
830 ORPC_EXTENT_ARRAY orpc_ext_array;
831 WIRE_ORPC_EXTENT *first_wire_orpc_extent = NULL;
832 HRESULT hrFault = S_OK;
833
834 TRACE("(%p) iMethod=%d\n", olemsg, olemsg->iMethod);
835
836 hr = ClientRpcChannelBuffer_IsCorrectApartment(This, COM_CurrentApt());
837 if (hr != S_OK)
838 {
839 ERR("called from wrong apartment, should have been 0x%s\n",
840 wine_dbgstr_longlong(This->oxid));
841 return RPC_E_WRONG_THREAD;
842 }
843 /* This situation should be impossible in multi-threaded apartments,
844 * because the calling thread isn't re-enterable.
845 * Note: doing a COM call during the processing of a sent message is
846 * only disallowed if a client call is already being waited for
847 * completion */
848 if (!COM_CurrentApt()->multi_threaded &&
849 COM_CurrentInfo()->pending_call_count_client &&
850 InSendMessage())
851 {
852 ERR("can't make an outgoing COM call in response to a sent message\n");
853 return RPC_E_CANTCALLOUT_ININPUTSYNCCALL;
854 }
855
856 message_state = msg->Handle;
857 /* restore the binding handle and the real start of data */
858 msg->Handle = message_state->binding_handle;
859 msg->Buffer = (char *)msg->Buffer - message_state->prefix_data_len;
860 msg->BufferLength += message_state->prefix_data_len;
861
862 /* Note: this is an optimization in the Microsoft OLE runtime that we need
863 * to copy, as shown by the test_no_couninitialize_client test. without
864 * short-circuiting the RPC runtime in the case below, the test will
865 * deadlock on the loader lock due to the RPC runtime needing to create
866 * a thread to process the RPC when this function is called indirectly
867 * from DllMain */
868
869 message_state->params.msg = olemsg;
870 if (message_state->params.bypass_rpcrt)
871 {
872 TRACE("Calling apartment thread 0x%08x...\n", message_state->target_tid);
873
874 msg->ProcNum &= ~RPC_FLAGS_VALID_BIT;
875
876 if (!PostMessageW(message_state->target_hwnd, DM_EXECUTERPC, 0,
877 (LPARAM)&message_state->params))
878 {
879 ERR("PostMessage failed with error %u\n", GetLastError());
880
881 /* Note: message_state->params.iface doesn't have a reference and
882 * so doesn't need to be released */
883
884 hr = HRESULT_FROM_WIN32(GetLastError());
885 }
886 }
887 else
888 {
889 /* we use a separate thread here because we need to be able to
890 * pump the message loop in the application thread: if we do not,
891 * any windows created by this thread will hang and RPCs that try
892 * and re-enter this STA from an incoming server thread will
893 * deadlock. InstallShield is an example of that.
894 */
895 if (!QueueUserWorkItem(rpc_sendreceive_thread, &message_state->params, WT_EXECUTEDEFAULT))
896 {
897 ERR("QueueUserWorkItem failed with error %u\n", GetLastError());
898 hr = E_UNEXPECTED;
899 }
900 else
901 hr = S_OK;
902 }
903
904 if (hr == S_OK)
905 {
906 if (WaitForSingleObject(message_state->params.handle, 0))
907 {
908 COM_CurrentInfo()->pending_call_count_client++;
909 hr = CoWaitForMultipleHandles(0, INFINITE, 1, &message_state->params.handle, &index);
910 COM_CurrentInfo()->pending_call_count_client--;
911 }
912 }
913 ClientRpcChannelBuffer_ReleaseEventHandle(This, message_state->params.handle);
914
915 /* for WM shortcut, faults are returned in params->hr */
916 if (hr == S_OK)
917 hrFault = message_state->params.hr;
918
919 status = message_state->params.status;
920
921 orpcthat.flags = ORPCF_NULL;
922 orpcthat.extensions = NULL;
923
924 TRACE("RPC call status: 0x%x\n", status);
925 if (status != RPC_S_OK)
926 hr = HRESULT_FROM_WIN32(status);
927
928 TRACE("hrFault = 0x%08x\n", hrFault);
929
930 /* FIXME: this condition should be
931 * "hr == S_OK && (!hrFault || msg->BufferLength > FIELD_OFFSET(ORPCTHAT, extensions) + 4)"
932 * but we don't currently reset the message length for PostMessage
933 * dispatched calls */
934 if (hr == S_OK && hrFault == S_OK)
935 {
936 HRESULT hr2;
937 char *original_buffer = msg->Buffer;
938
939 /* handle ORPCTHAT and client extensions */
940
941 hr2 = unmarshal_ORPCTHAT(msg, &orpcthat, &orpc_ext_array, &first_wire_orpc_extent);
942 if (FAILED(hr2))
943 hr = hr2;
944
945 message_state->prefix_data_len = (char *)msg->Buffer - original_buffer;
946 msg->BufferLength -= message_state->prefix_data_len;
947 }
948 else
949 message_state->prefix_data_len = 0;
950
951 if (hr == S_OK)
952 {
953 ChannelHooks_ClientNotify(&message_state->channel_hook_info,
954 msg->DataRepresentation,
955 first_wire_orpc_extent,
956 orpcthat.extensions && first_wire_orpc_extent ? orpcthat.extensions->size : 0,
957 hrFault);
958 }
959
960 /* save away the message state again */
961 msg->Handle = message_state;
962
963 if (pstatus) *pstatus = status;
964
965 if (hr == S_OK)
966 hr = hrFault;
967
968 TRACE("-- 0x%08x\n", hr);
969
970 return hr;
971 }
972
973 static HRESULT WINAPI ServerRpcChannelBuffer_FreeBuffer(LPRPCCHANNELBUFFER iface, RPCOLEMESSAGE* olemsg)
974 {
975 RPC_MESSAGE *msg = (RPC_MESSAGE *)olemsg;
976 RPC_STATUS status;
977 struct message_state *message_state;
978
979 TRACE("(%p)\n", msg);
980
981 message_state = msg->Handle;
982 /* restore the binding handle and the real start of data */
983 msg->Handle = message_state->binding_handle;
984 msg->Buffer = (char *)msg->Buffer - message_state->prefix_data_len;
985 msg->BufferLength += message_state->prefix_data_len;
986 message_state->prefix_data_len = 0;
987
988 if (message_state->bypass_rpcrt)
989 {
990 HeapFree(GetProcessHeap(), 0, msg->Buffer);
991 status = RPC_S_OK;
992 }
993 else
994 status = I_RpcFreeBuffer(msg);
995
996 msg->Handle = message_state;
997
998 TRACE("-- %d\n", status);
999
1000 return HRESULT_FROM_WIN32(status);
1001 }
1002
1003 static HRESULT WINAPI ClientRpcChannelBuffer_FreeBuffer(LPRPCCHANNELBUFFER iface, RPCOLEMESSAGE* olemsg)
1004 {
1005 RPC_MESSAGE *msg = (RPC_MESSAGE *)olemsg;
1006 RPC_STATUS status;
1007 struct message_state *message_state;
1008
1009 TRACE("(%p)\n", msg);
1010
1011 message_state = msg->Handle;
1012 /* restore the binding handle and the real start of data */
1013 msg->Handle = message_state->binding_handle;
1014 msg->Buffer = (char *)msg->Buffer - message_state->prefix_data_len;
1015 msg->BufferLength += message_state->prefix_data_len;
1016
1017 if (message_state->params.bypass_rpcrt)
1018 {
1019 HeapFree(GetProcessHeap(), 0, msg->Buffer);
1020 status = RPC_S_OK;
1021 }
1022 else
1023 status = I_RpcFreeBuffer(msg);
1024
1025 HeapFree(GetProcessHeap(), 0, msg->RpcInterfaceInformation);
1026 msg->RpcInterfaceInformation = NULL;
1027
1028 if (message_state->params.stub)
1029 IRpcStubBuffer_Release(message_state->params.stub);
1030 if (message_state->params.chan)
1031 IRpcChannelBuffer_Release(message_state->params.chan);
1032 HeapFree(GetProcessHeap(), 0, message_state);
1033
1034 TRACE("-- %d\n", status);
1035
1036 return HRESULT_FROM_WIN32(status);
1037 }
1038
1039 static HRESULT WINAPI ClientRpcChannelBuffer_GetDestCtx(LPRPCCHANNELBUFFER iface, DWORD* pdwDestContext, void** ppvDestContext)
1040 {
1041 ClientRpcChannelBuffer *This = (ClientRpcChannelBuffer *)iface;
1042
1043 TRACE("(%p,%p)\n", pdwDestContext, ppvDestContext);
1044
1045 *pdwDestContext = This->super.dest_context;
1046 *ppvDestContext = This->super.dest_context_data;
1047
1048 return S_OK;
1049 }
1050
1051 static HRESULT WINAPI ServerRpcChannelBuffer_GetDestCtx(LPRPCCHANNELBUFFER iface, DWORD* dest_context, void** dest_context_data)
1052 {
1053 RpcChannelBuffer *This = (RpcChannelBuffer *)iface;
1054
1055 TRACE("(%p,%p)\n", dest_context, dest_context_data);
1056
1057 *dest_context = This->dest_context;
1058 *dest_context_data = This->dest_context_data;
1059 return S_OK;
1060 }
1061
1062 static HRESULT WINAPI RpcChannelBuffer_IsConnected(LPRPCCHANNELBUFFER iface)
1063 {
1064 TRACE("()\n");
1065 /* native does nothing too */
1066 return S_OK;
1067 }
1068
1069 static const IRpcChannelBufferVtbl ClientRpcChannelBufferVtbl =
1070 {
1071 RpcChannelBuffer_QueryInterface,
1072 RpcChannelBuffer_AddRef,
1073 ClientRpcChannelBuffer_Release,
1074 ClientRpcChannelBuffer_GetBuffer,
1075 ClientRpcChannelBuffer_SendReceive,
1076 ClientRpcChannelBuffer_FreeBuffer,
1077 ClientRpcChannelBuffer_GetDestCtx,
1078 RpcChannelBuffer_IsConnected
1079 };
1080
1081 static const IRpcChannelBufferVtbl ServerRpcChannelBufferVtbl =
1082 {
1083 RpcChannelBuffer_QueryInterface,
1084 RpcChannelBuffer_AddRef,
1085 ServerRpcChannelBuffer_Release,
1086 ServerRpcChannelBuffer_GetBuffer,
1087 ServerRpcChannelBuffer_SendReceive,
1088 ServerRpcChannelBuffer_FreeBuffer,
1089 ServerRpcChannelBuffer_GetDestCtx,
1090 RpcChannelBuffer_IsConnected
1091 };
1092
1093 /* returns a channel buffer for proxies */
1094 HRESULT RPC_CreateClientChannel(const OXID *oxid, const IPID *ipid,
1095 const OXID_INFO *oxid_info,
1096 DWORD dest_context, void *dest_context_data,
1097 IRpcChannelBuffer **chan)
1098 {
1099 ClientRpcChannelBuffer *This;
1100 WCHAR endpoint[200];
1101 RPC_BINDING_HANDLE bind;
1102 RPC_STATUS status;
1103 LPWSTR string_binding;
1104
1105 /* FIXME: get the endpoint from oxid_info->psa instead */
1106 get_rpc_endpoint(endpoint, oxid);
1107
1108 TRACE("proxy pipe: connecting to endpoint: %s\n", debugstr_w(endpoint));
1109
1110 status = RpcStringBindingComposeW(
1111 NULL,
1112 wszRpcTransport,
1113 NULL,
1114 endpoint,
1115 NULL,
1116 &string_binding);
1117
1118 if (status == RPC_S_OK)
1119 {
1120 status = RpcBindingFromStringBindingW(string_binding, &bind);
1121
1122 if (status == RPC_S_OK)
1123 {
1124 IPID ipid2 = *ipid; /* why can't RpcBindingSetObject take a const? */
1125 status = RpcBindingSetObject(bind, &ipid2);
1126 if (status != RPC_S_OK)
1127 RpcBindingFree(&bind);
1128 }
1129
1130 RpcStringFreeW(&string_binding);
1131 }
1132
1133 if (status != RPC_S_OK)
1134 {
1135 ERR("Couldn't get binding for endpoint %s, status = %d\n", debugstr_w(endpoint), status);
1136 return HRESULT_FROM_WIN32(status);
1137 }
1138
1139 This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
1140 if (!This)
1141 {
1142 RpcBindingFree(&bind);
1143 return E_OUTOFMEMORY;
1144 }
1145
1146 This->super.IRpcChannelBuffer_iface.lpVtbl = &ClientRpcChannelBufferVtbl;
1147 This->super.refs = 1;
1148 This->super.dest_context = dest_context;
1149 This->super.dest_context_data = dest_context_data;
1150 This->bind = bind;
1151 apartment_getoxid(COM_CurrentApt(), &This->oxid);
1152 This->server_pid = oxid_info->dwPid;
1153 This->event = NULL;
1154
1155 *chan = &This->super.IRpcChannelBuffer_iface;
1156
1157 return S_OK;
1158 }
1159
1160 HRESULT RPC_CreateServerChannel(DWORD dest_context, void *dest_context_data, IRpcChannelBuffer **chan)
1161 {
1162 RpcChannelBuffer *This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
1163 if (!This)
1164 return E_OUTOFMEMORY;
1165
1166 This->IRpcChannelBuffer_iface.lpVtbl = &ServerRpcChannelBufferVtbl;
1167 This->refs = 1;
1168 This->dest_context = dest_context;
1169 This->dest_context_data = dest_context_data;
1170
1171 *chan = &This->IRpcChannelBuffer_iface;
1172
1173 return S_OK;
1174 }
1175
1176 /* unmarshals ORPC_EXTENT_ARRAY according to NDR rules, but doesn't allocate
1177 * any memory */
1178 static HRESULT unmarshal_ORPC_EXTENT_ARRAY(RPC_MESSAGE *msg, const char *end,
1179 ORPC_EXTENT_ARRAY *extensions,
1180 WIRE_ORPC_EXTENT **first_wire_orpc_extent)
1181 {
1182 DWORD pointer_id;
1183 DWORD i;
1184
1185 memcpy(extensions, msg->Buffer, FIELD_OFFSET(WIRE_ORPC_EXTENT_ARRAY, extent));
1186 msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(WIRE_ORPC_EXTENT_ARRAY, extent);
1187
1188 if ((const char *)msg->Buffer + 2 * sizeof(DWORD) > end)
1189 return RPC_E_INVALID_HEADER;
1190
1191 pointer_id = *(DWORD *)msg->Buffer;
1192 msg->Buffer = (char *)msg->Buffer + sizeof(DWORD);
1193 extensions->extent = NULL;
1194
1195 if (pointer_id)
1196 {
1197 WIRE_ORPC_EXTENT *wire_orpc_extent;
1198
1199 /* conformance */
1200 if (*(DWORD *)msg->Buffer != ((extensions->size+1)&~1))
1201 return RPC_S_INVALID_BOUND;
1202
1203 msg->Buffer = (char *)msg->Buffer + sizeof(DWORD);
1204
1205 /* arbitrary limit for security (don't know what native does) */
1206 if (extensions->size > 256)
1207 {
1208 ERR("too many extensions: %d\n", extensions->size);
1209 return RPC_S_INVALID_BOUND;
1210 }
1211
1212 *first_wire_orpc_extent = wire_orpc_extent = msg->Buffer;
1213 for (i = 0; i < ((extensions->size+1)&~1); i++)
1214 {
1215 if ((const char *)&wire_orpc_extent->data[0] > end)
1216 return RPC_S_INVALID_BOUND;
1217 if (wire_orpc_extent->conformance != ((wire_orpc_extent->size+7)&~7))
1218 return RPC_S_INVALID_BOUND;
1219 if ((const char *)&wire_orpc_extent->data[wire_orpc_extent->conformance] > end)
1220 return RPC_S_INVALID_BOUND;
1221 TRACE("size %u, guid %s\n", wire_orpc_extent->size, debugstr_guid(&wire_orpc_extent->id));
1222 wire_orpc_extent = (WIRE_ORPC_EXTENT *)&wire_orpc_extent->data[wire_orpc_extent->conformance];
1223 }
1224 msg->Buffer = wire_orpc_extent;
1225 }
1226
1227 return S_OK;
1228 }
1229
1230 /* unmarshals ORPCTHIS according to NDR rules, but doesn't allocate any memory */
1231 static HRESULT unmarshal_ORPCTHIS(RPC_MESSAGE *msg, ORPCTHIS *orpcthis,
1232 ORPC_EXTENT_ARRAY *orpc_ext_array, WIRE_ORPC_EXTENT **first_wire_orpc_extent)
1233 {
1234 const char *end = (char *)msg->Buffer + msg->BufferLength;
1235
1236 *first_wire_orpc_extent = NULL;
1237
1238 if (msg->BufferLength < FIELD_OFFSET(WIRE_ORPCTHIS, extensions) + sizeof(DWORD))
1239 {
1240 ERR("invalid buffer length\n");
1241 return RPC_E_INVALID_HEADER;
1242 }
1243
1244 memcpy(orpcthis, msg->Buffer, FIELD_OFFSET(WIRE_ORPCTHIS, extensions));
1245 msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(WIRE_ORPCTHIS, extensions);
1246
1247 if ((const char *)msg->Buffer + sizeof(DWORD) > end)
1248 return RPC_E_INVALID_HEADER;
1249
1250 if (*(DWORD *)msg->Buffer)
1251 orpcthis->extensions = orpc_ext_array;
1252 else
1253 orpcthis->extensions = NULL;
1254
1255 msg->Buffer = (char *)msg->Buffer + sizeof(DWORD);
1256
1257 if (orpcthis->extensions)
1258 {
1259 HRESULT hr = unmarshal_ORPC_EXTENT_ARRAY(msg, end, orpc_ext_array,
1260 first_wire_orpc_extent);
1261 if (FAILED(hr))
1262 return hr;
1263 }
1264
1265 if ((orpcthis->version.MajorVersion != COM_MAJOR_VERSION) ||
1266 (orpcthis->version.MinorVersion > COM_MINOR_VERSION))
1267 {
1268 ERR("COM version {%d, %d} not supported\n",
1269 orpcthis->version.MajorVersion, orpcthis->version.MinorVersion);
1270 return RPC_E_VERSION_MISMATCH;
1271 }
1272
1273 if (orpcthis->flags & ~(ORPCF_LOCAL|ORPCF_RESERVED1|ORPCF_RESERVED2|ORPCF_RESERVED3|ORPCF_RESERVED4))
1274 {
1275 ERR("invalid flags 0x%x\n", orpcthis->flags & ~(ORPCF_LOCAL|ORPCF_RESERVED1|ORPCF_RESERVED2|ORPCF_RESERVED3|ORPCF_RESERVED4));
1276 return RPC_E_INVALID_HEADER;
1277 }
1278
1279 return S_OK;
1280 }
1281
1282 static HRESULT unmarshal_ORPCTHAT(RPC_MESSAGE *msg, ORPCTHAT *orpcthat,
1283 ORPC_EXTENT_ARRAY *orpc_ext_array, WIRE_ORPC_EXTENT **first_wire_orpc_extent)
1284 {
1285 const char *end = (char *)msg->Buffer + msg->BufferLength;
1286
1287 *first_wire_orpc_extent = NULL;
1288
1289 if (msg->BufferLength < FIELD_OFFSET(WIRE_ORPCTHAT, extensions) + sizeof(DWORD))
1290 {
1291 ERR("invalid buffer length\n");
1292 return RPC_E_INVALID_HEADER;
1293 }
1294
1295 memcpy(orpcthat, msg->Buffer, FIELD_OFFSET(WIRE_ORPCTHAT, extensions));
1296 msg->Buffer = (char *)msg->Buffer + FIELD_OFFSET(WIRE_ORPCTHAT, extensions);
1297
1298 if ((const char *)msg->Buffer + sizeof(DWORD) > end)
1299 return RPC_E_INVALID_HEADER;
1300
1301 if (*(DWORD *)msg->Buffer)
1302 orpcthat->extensions = orpc_ext_array;
1303 else
1304 orpcthat->extensions = NULL;
1305
1306 msg->Buffer = (char *)msg->Buffer + sizeof(DWORD);
1307
1308 if (orpcthat->extensions)
1309 {
1310 HRESULT hr = unmarshal_ORPC_EXTENT_ARRAY(msg, end, orpc_ext_array,
1311 first_wire_orpc_extent);
1312 if (FAILED(hr))
1313 return hr;
1314 }
1315
1316 if (orpcthat->flags & ~(ORPCF_LOCAL|ORPCF_RESERVED1|ORPCF_RESERVED2|ORPCF_RESERVED3|ORPCF_RESERVED4))
1317 {
1318 ERR("invalid flags 0x%x\n", orpcthat->flags & ~(ORPCF_LOCAL|ORPCF_RESERVED1|ORPCF_RESERVED2|ORPCF_RESERVED3|ORPCF_RESERVED4));
1319 return RPC_E_INVALID_HEADER;
1320 }
1321
1322 return S_OK;
1323 }
1324
1325 void RPC_ExecuteCall(struct dispatch_params *params)
1326 {
1327 struct message_state *message_state = NULL;
1328 RPC_MESSAGE *msg = (RPC_MESSAGE *)params->msg;
1329 char *original_buffer = msg->Buffer;
1330 ORPCTHIS orpcthis;
1331 ORPC_EXTENT_ARRAY orpc_ext_array;
1332 WIRE_ORPC_EXTENT *first_wire_orpc_extent;
1333 GUID old_causality_id;
1334
1335 /* handle ORPCTHIS and server extensions */
1336
1337 params->hr = unmarshal_ORPCTHIS(msg, &orpcthis, &orpc_ext_array, &first_wire_orpc_extent);
1338 if (params->hr != S_OK)
1339 {
1340 msg->Buffer = original_buffer;
1341 goto exit;
1342 }
1343
1344 message_state = HeapAlloc(GetProcessHeap(), 0, sizeof(*message_state));
1345 if (!message_state)
1346 {
1347 params->hr = E_OUTOFMEMORY;
1348 msg->Buffer = original_buffer;
1349 goto exit;
1350 }
1351
1352 message_state->prefix_data_len = (char *)msg->Buffer - original_buffer;
1353 message_state->binding_handle = msg->Handle;
1354 message_state->bypass_rpcrt = params->bypass_rpcrt;
1355
1356 message_state->channel_hook_info.iid = params->iid;
1357 message_state->channel_hook_info.cbSize = sizeof(message_state->channel_hook_info);
1358 message_state->channel_hook_info.uCausality = orpcthis.cid;
1359 message_state->channel_hook_info.dwServerPid = GetCurrentProcessId();
1360 message_state->channel_hook_info.iMethod = msg->ProcNum;
1361 message_state->channel_hook_info.pObject = params->iface;
1362
1363 if (orpcthis.extensions && first_wire_orpc_extent &&
1364 orpcthis.extensions->size)
1365 ChannelHooks_ServerNotify(&message_state->channel_hook_info, msg->DataRepresentation, first_wire_orpc_extent, orpcthis.extensions->size);
1366
1367 msg->Handle = message_state;
1368 msg->BufferLength -= message_state->prefix_data_len;
1369
1370 /* call message filter */
1371
1372 if (COM_CurrentApt()->filter)
1373 {
1374 DWORD handlecall;
1375 INTERFACEINFO interface_info;
1376 CALLTYPE calltype;
1377
1378 interface_info.pUnk = params->iface;
1379 interface_info.iid = params->iid;
1380 interface_info.wMethod = msg->ProcNum;
1381
1382 if (IsEqualGUID(&orpcthis.cid, &COM_CurrentInfo()->causality_id))
1383 calltype = CALLTYPE_NESTED;
1384 else if (COM_CurrentInfo()->pending_call_count_server == 0)
1385 calltype = CALLTYPE_TOPLEVEL;
1386 else
1387 calltype = CALLTYPE_TOPLEVEL_CALLPENDING;
1388
1389 handlecall = IMessageFilter_HandleInComingCall(COM_CurrentApt()->filter,
1390 calltype,
1391 UlongToHandle(GetCurrentProcessId()),
1392 0 /* FIXME */,
1393 &interface_info);
1394 TRACE("IMessageFilter_HandleInComingCall returned %d\n", handlecall);
1395 switch (handlecall)
1396 {
1397 case SERVERCALL_REJECTED:
1398 params->hr = RPC_E_CALL_REJECTED;
1399 goto exit_reset_state;
1400 case SERVERCALL_RETRYLATER:
1401 #if 0 /* FIXME: handle retries on the client side before enabling this code */
1402 params->hr = RPC_E_RETRY;
1403 goto exit_reset_state;
1404 #else
1405 FIXME("retry call later not implemented\n");
1406 break;
1407 #endif
1408 case SERVERCALL_ISHANDLED:
1409 default:
1410 break;
1411 }
1412 }
1413
1414 /* invoke the method */
1415
1416 /* save the old causality ID - note: any calls executed while processing
1417 * messages received during the SendReceive will appear to originate from
1418 * this call - this should be checked with what Windows does */
1419 old_causality_id = COM_CurrentInfo()->causality_id;
1420 COM_CurrentInfo()->causality_id = orpcthis.cid;
1421 COM_CurrentInfo()->pending_call_count_server++;
1422 params->hr = IRpcStubBuffer_Invoke(params->stub, params->msg, params->chan);
1423 COM_CurrentInfo()->pending_call_count_server--;
1424 COM_CurrentInfo()->causality_id = old_causality_id;
1425
1426 /* the invoke allocated a new buffer, so free the old one */
1427 if (message_state->bypass_rpcrt && original_buffer != msg->Buffer)
1428 HeapFree(GetProcessHeap(), 0, original_buffer);
1429
1430 exit_reset_state:
1431 message_state = msg->Handle;
1432 msg->Handle = message_state->binding_handle;
1433 msg->Buffer = (char *)msg->Buffer - message_state->prefix_data_len;
1434 msg->BufferLength += message_state->prefix_data_len;
1435
1436 exit:
1437 HeapFree(GetProcessHeap(), 0, message_state);
1438 if (params->handle) SetEvent(params->handle);
1439 }
1440
1441 static void __RPC_STUB dispatch_rpc(RPC_MESSAGE *msg)
1442 {
1443 struct dispatch_params *params;
1444 struct stub_manager *stub_manager;
1445 APARTMENT *apt;
1446 IPID ipid;
1447 HRESULT hr;
1448
1449 RpcBindingInqObject(msg->Handle, &ipid);
1450
1451 TRACE("ipid = %s, iMethod = %d\n", debugstr_guid(&ipid), msg->ProcNum);
1452
1453 params = HeapAlloc(GetProcessHeap(), 0, sizeof(*params));
1454 if (!params)
1455 {
1456 RpcRaiseException(E_OUTOFMEMORY);
1457 return;
1458 }
1459
1460 hr = ipid_get_dispatch_params(&ipid, &apt, &stub_manager, &params->stub, &params->chan,
1461 &params->iid, &params->iface);
1462 if (hr != S_OK)
1463 {
1464 ERR("no apartment found for ipid %s\n", debugstr_guid(&ipid));
1465 HeapFree(GetProcessHeap(), 0, params);
1466 RpcRaiseException(hr);
1467 return;
1468 }
1469
1470 params->msg = (RPCOLEMESSAGE *)msg;
1471 params->status = RPC_S_OK;
1472 params->hr = S_OK;
1473 params->handle = NULL;
1474 params->bypass_rpcrt = FALSE;
1475
1476 /* Note: this is the important difference between STAs and MTAs - we
1477 * always execute RPCs to STAs in the thread that originally created the
1478 * apartment (i.e. the one that pumps messages to the window) */
1479 if (!apt->multi_threaded)
1480 {
1481 params->handle = CreateEventW(NULL, FALSE, FALSE, NULL);
1482
1483 TRACE("Calling apartment thread 0x%08x...\n", apt->tid);
1484
1485 if (PostMessageW(apartment_getwindow(apt), DM_EXECUTERPC, 0, (LPARAM)params))
1486 WaitForSingleObject(params->handle, INFINITE);
1487 else
1488 {
1489 ERR("PostMessage failed with error %u\n", GetLastError());
1490 IRpcChannelBuffer_Release(params->chan);
1491 IRpcStubBuffer_Release(params->stub);
1492 }
1493 CloseHandle(params->handle);
1494 }
1495 else
1496 {
1497 BOOL joined = FALSE;
1498 if (!COM_CurrentInfo()->apt)
1499 {
1500 apartment_joinmta();
1501 joined = TRUE;
1502 }
1503 RPC_ExecuteCall(params);
1504 if (joined)
1505 {
1506 apartment_release(COM_CurrentInfo()->apt);
1507 COM_CurrentInfo()->apt = NULL;
1508 }
1509 }
1510
1511 hr = params->hr;
1512 if (params->chan)
1513 IRpcChannelBuffer_Release(params->chan);
1514 if (params->stub)
1515 IRpcStubBuffer_Release(params->stub);
1516 HeapFree(GetProcessHeap(), 0, params);
1517
1518 stub_manager_int_release(stub_manager);
1519 apartment_release(apt);
1520
1521 /* if IRpcStubBuffer_Invoke fails, we should raise an exception to tell
1522 * the RPC runtime that the call failed */
1523 if (hr != S_OK) RpcRaiseException(hr);
1524 }
1525
1526 /* stub registration */
1527 HRESULT RPC_RegisterInterface(REFIID riid)
1528 {
1529 struct registered_if *rif;
1530 BOOL found = FALSE;
1531 HRESULT hr = S_OK;
1532
1533 TRACE("(%s)\n", debugstr_guid(riid));
1534
1535 EnterCriticalSection(&csRegIf);
1536 LIST_FOR_EACH_ENTRY(rif, &registered_interfaces, struct registered_if, entry)
1537 {
1538 if (IsEqualGUID(&rif->If.InterfaceId.SyntaxGUID, riid))
1539 {
1540 rif->refs++;
1541 found = TRUE;
1542 break;
1543 }
1544 }
1545 if (!found)
1546 {
1547 TRACE("Creating new interface\n");
1548
1549 rif = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*rif));
1550 if (rif)
1551 {
1552 RPC_STATUS status;
1553
1554 rif->refs = 1;
1555 rif->If.Length = sizeof(RPC_SERVER_INTERFACE);
1556 /* RPC interface ID = COM interface ID */
1557 rif->If.InterfaceId.SyntaxGUID = *riid;
1558 rif->If.DispatchTable = &rpc_dispatch;
1559 /* all other fields are 0, including the version asCOM objects
1560 * always have a version of 0.0 */
1561 status = RpcServerRegisterIfEx(
1562 (RPC_IF_HANDLE)&rif->If,
1563 NULL, NULL,
1564 RPC_IF_OLE | RPC_IF_AUTOLISTEN,
1565 RPC_C_LISTEN_MAX_CALLS_DEFAULT,
1566 NULL);
1567 if (status == RPC_S_OK)
1568 list_add_tail(&registered_interfaces, &rif->entry);
1569 else
1570 {
1571 ERR("RpcServerRegisterIfEx failed with error %d\n", status);
1572 HeapFree(GetProcessHeap(), 0, rif);
1573 hr = HRESULT_FROM_WIN32(status);
1574 }
1575 }
1576 else
1577 hr = E_OUTOFMEMORY;
1578 }
1579 LeaveCriticalSection(&csRegIf);
1580 return hr;
1581 }
1582
1583 /* stub unregistration */
1584 void RPC_UnregisterInterface(REFIID riid, BOOL wait)
1585 {
1586 struct registered_if *rif;
1587 EnterCriticalSection(&csRegIf);
1588 LIST_FOR_EACH_ENTRY(rif, &registered_interfaces, struct registered_if, entry)
1589 {
1590 if (IsEqualGUID(&rif->If.InterfaceId.SyntaxGUID, riid))
1591 {
1592 if (!--rif->refs)
1593 {
1594 RpcServerUnregisterIf((RPC_IF_HANDLE)&rif->If, NULL, wait);
1595 list_remove(&rif->entry);
1596 HeapFree(GetProcessHeap(), 0, rif);
1597 }
1598 break;
1599 }
1600 }
1601 LeaveCriticalSection(&csRegIf);
1602 }
1603
1604 /* get the info for an OXID, including the IPID for the rem unknown interface
1605 * and the string binding */
1606 HRESULT RPC_ResolveOxid(OXID oxid, OXID_INFO *oxid_info)
1607 {
1608 TRACE("%s\n", wine_dbgstr_longlong(oxid));
1609
1610 oxid_info->dwTid = 0;
1611 oxid_info->dwPid = 0;
1612 oxid_info->dwAuthnHint = RPC_C_AUTHN_LEVEL_NONE;
1613 /* FIXME: this is a hack around not having an OXID resolver yet -
1614 * this function should contact the machine's OXID resolver and then it
1615 * should give us the IPID of the IRemUnknown interface */
1616 oxid_info->ipidRemUnknown.Data1 = 0xffffffff;
1617 oxid_info->ipidRemUnknown.Data2 = 0xffff;
1618 oxid_info->ipidRemUnknown.Data3 = 0xffff;
1619 memcpy(oxid_info->ipidRemUnknown.Data4, &oxid, sizeof(OXID));
1620 oxid_info->psa = NULL /* FIXME */;
1621
1622 return S_OK;
1623 }
1624
1625 /* make the apartment reachable by other threads and processes and create the
1626 * IRemUnknown object */
1627 void RPC_StartRemoting(struct apartment *apt)
1628 {
1629 if (!InterlockedExchange(&apt->remoting_started, TRUE))
1630 {
1631 WCHAR endpoint[200];
1632 RPC_STATUS status;
1633
1634 get_rpc_endpoint(endpoint, &apt->oxid);
1635
1636 status = RpcServerUseProtseqEpW(
1637 wszRpcTransport,
1638 RPC_C_PROTSEQ_MAX_REQS_DEFAULT,
1639 endpoint,
1640 NULL);
1641 if (status != RPC_S_OK)
1642 ERR("Couldn't register endpoint %s\n", debugstr_w(endpoint));
1643
1644 /* FIXME: move remote unknown exporting into this function */
1645 }
1646 start_apartment_remote_unknown();
1647 }
1648
1649
1650 static HRESULT create_server(REFCLSID rclsid, HANDLE *process)
1651 {
1652 static const WCHAR wszLocalServer32[] = { 'L','o','c','a','l','S','e','r','v','e','r','3','2',0 };
1653 static const WCHAR embedding[] = { ' ', '-','E','m','b','e','d','d','i','n','g',0 };
1654 HKEY key;
1655 HRESULT hres;
1656 WCHAR command[MAX_PATH+sizeof(embedding)/sizeof(WCHAR)];
1657 DWORD size = (MAX_PATH+1) * sizeof(WCHAR);
1658 STARTUPINFOW sinfo;
1659 PROCESS_INFORMATION pinfo;
1660 LONG ret;
1661
1662 hres = COM_OpenKeyForCLSID(rclsid, wszLocalServer32, KEY_READ, &key);
1663 if (FAILED(hres)) {
1664 ERR("class %s not registered\n", debugstr_guid(rclsid));
1665 return hres;
1666 }
1667
1668 ret = RegQueryValueExW(key, NULL, NULL, NULL, (LPBYTE)command, &size);
1669 RegCloseKey(key);
1670 if (ret) {
1671 WARN("No default value for LocalServer32 key\n");
1672 return REGDB_E_CLASSNOTREG; /* FIXME: check retval */
1673 }
1674
1675 memset(&sinfo,0,sizeof(sinfo));
1676 sinfo.cb = sizeof(sinfo);
1677
1678 /* EXE servers are started with the -Embedding switch. */
1679
1680 strcatW(command, embedding);
1681
1682 TRACE("activating local server %s for %s\n", debugstr_w(command), debugstr_guid(rclsid));
1683
1684 /* FIXME: Win2003 supports a ServerExecutable value that is passed into
1685 * CreateProcess */
1686 if (!CreateProcessW(NULL, command, NULL, NULL, FALSE, DETACHED_PROCESS, NULL, NULL, &sinfo, &pinfo)) {
1687 WARN("failed to run local server %s\n", debugstr_w(command));
1688 return HRESULT_FROM_WIN32(GetLastError());
1689 }
1690 *process = pinfo.hProcess;
1691 CloseHandle(pinfo.hThread);
1692
1693 return S_OK;
1694 }
1695
1696 /*
1697 * start_local_service() - start a service given its name and parameters
1698 */
1699 static DWORD start_local_service(LPCWSTR name, DWORD num, LPCWSTR *params)
1700 {
1701 SC_HANDLE handle, hsvc;
1702 DWORD r = ERROR_FUNCTION_FAILED;
1703
1704 TRACE("Starting service %s %d params\n", debugstr_w(name), num);
1705
1706 handle = OpenSCManagerW(NULL, NULL, SC_MANAGER_CONNECT);
1707 if (!handle)
1708 return r;
1709 hsvc = OpenServiceW(handle, name, SERVICE_START);
1710 if (hsvc)
1711 {
1712 if(StartServiceW(hsvc, num, params))
1713 r = ERROR_SUCCESS;
1714 else
1715 r = GetLastError();
1716 if (r == ERROR_SERVICE_ALREADY_RUNNING)
1717 r = ERROR_SUCCESS;
1718 CloseServiceHandle(hsvc);
1719 }
1720 else
1721 r = GetLastError();
1722 CloseServiceHandle(handle);
1723
1724 TRACE("StartService returned error %u (%s)\n", r, (r == ERROR_SUCCESS) ? "ok":"failed");
1725
1726 return r;
1727 }
1728
1729 /*
1730 * create_local_service() - start a COM server in a service
1731 *
1732 * To start a Local Service, we read the AppID value under
1733 * the class's CLSID key, then open the HKCR\\AppId key specified
1734 * there and check for a LocalService value.
1735 *
1736 * Note: Local Services are not supported under Windows 9x
1737 */
1738 static HRESULT create_local_service(REFCLSID rclsid)
1739 {
1740 HRESULT hres;
1741 WCHAR buf[CHARS_IN_GUID];
1742 static const WCHAR szLocalService[] = { 'L','o','c','a','l','S','e','r','v','i','c','e',0 };
1743 static const WCHAR szServiceParams[] = {'S','e','r','v','i','c','e','P','a','r','a','m','s',0};
1744 HKEY hkey;
1745 LONG r;
1746 DWORD type, sz;
1747
1748 TRACE("Attempting to start Local service for %s\n", debugstr_guid(rclsid));
1749
1750 hres = COM_OpenKeyForAppIdFromCLSID(rclsid, KEY_READ, &hkey);
1751 if (FAILED(hres))
1752 return hres;
1753
1754 /* read the LocalService and ServiceParameters values from the AppID key */
1755 sz = sizeof buf;
1756 r = RegQueryValueExW(hkey, szLocalService, NULL, &type, (LPBYTE)buf, &sz);
1757 if (r==ERROR_SUCCESS && type==REG_SZ)
1758 {
1759 DWORD num_args = 0;
1760 LPWSTR args[1] = { NULL };
1761
1762 /*
1763 * FIXME: I'm not really sure how to deal with the service parameters.
1764 * I suspect that the string returned from RegQueryValueExW
1765 * should be split into a number of arguments by spaces.
1766 * It would make more sense if ServiceParams contained a
1767 * REG_MULTI_SZ here, but it's a REG_SZ for the services
1768 * that I'm interested in for the moment.
1769 */
1770 r = RegQueryValueExW(hkey, szServiceParams, NULL, &type, NULL, &sz);
1771 if (r == ERROR_SUCCESS && type == REG_SZ && sz)
1772 {
1773 args[0] = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sz);
1774 num_args++;
1775 RegQueryValueExW(hkey, szServiceParams, NULL, &type, (LPBYTE)args[0], &sz);
1776 }
1777 r = start_local_service(buf, num_args, (LPCWSTR *)args);
1778 if (r != ERROR_SUCCESS)
1779 hres = REGDB_E_CLASSNOTREG; /* FIXME: check retval */
1780 HeapFree(GetProcessHeap(),0,args[0]);
1781 }
1782 else
1783 {
1784 WARN("No LocalService value\n");
1785 hres = REGDB_E_CLASSNOTREG; /* FIXME: check retval */
1786 }
1787 RegCloseKey(hkey);
1788
1789 return hres;
1790 }
1791
1792
1793 static void get_localserver_pipe_name(WCHAR *pipefn, REFCLSID rclsid)
1794 {
1795 static const WCHAR wszPipeRef[] = {'\\','\\','.','\\','p','i','p','e','\\',0};
1796 strcpyW(pipefn, wszPipeRef);
1797 StringFromGUID2(rclsid, pipefn + sizeof(wszPipeRef)/sizeof(wszPipeRef[0]) - 1, CHARS_IN_GUID);
1798 }
1799
1800 /* FIXME: should call to rpcss instead */
1801 HRESULT RPC_GetLocalClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
1802 {
1803 HRESULT hres;
1804 HANDLE hPipe;
1805 WCHAR pipefn[100];
1806 DWORD res, bufferlen;
1807 char marshalbuffer[200];
1808 IStream *pStm;
1809 LARGE_INTEGER seekto;
1810 ULARGE_INTEGER newpos;
1811 int tries = 0;
1812 IServiceProvider *local_server;
1813
1814 static const int MAXTRIES = 30; /* 30 seconds */
1815
1816 TRACE("rclsid=%s, iid=%s\n", debugstr_guid(rclsid), debugstr_guid(iid));
1817
1818 get_localserver_pipe_name(pipefn, rclsid);
1819
1820 while (tries++ < MAXTRIES) {
1821 TRACE("waiting for %s\n", debugstr_w(pipefn));
1822
1823 WaitNamedPipeW( pipefn, NMPWAIT_WAIT_FOREVER );
1824 hPipe = CreateFileW(pipefn, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, 0);
1825 if (hPipe == INVALID_HANDLE_VALUE) {
1826 DWORD index;
1827 DWORD start_ticks;
1828 HANDLE process = 0;
1829 if (tries == 1) {
1830 if ( (hres = create_local_service(rclsid)) &&
1831 (hres = create_server(rclsid, &process)) )
1832 return hres;
1833 } else {
1834 WARN("Connecting to %s, no response yet, retrying: le is %u\n", debugstr_w(pipefn), GetLastError());
1835 }
1836 /* wait for one second, even if messages arrive */
1837 start_ticks = GetTickCount();
1838 do {
1839 if (SUCCEEDED(CoWaitForMultipleHandles(0, 1000, (process != 0),
1840 &process, &index)) && process && !index)
1841 {
1842 WARN( "server for %s failed to start\n", debugstr_guid(rclsid) );
1843 CloseHandle( hPipe );
1844 CloseHandle( process );
1845 return E_NOINTERFACE;
1846 }
1847 } while (GetTickCount() - start_ticks < 1000);
1848 if (process) CloseHandle( process );
1849 continue;
1850 }
1851 bufferlen = 0;
1852 if (!ReadFile(hPipe,marshalbuffer,sizeof(marshalbuffer),&bufferlen,NULL)) {
1853 FIXME("Failed to read marshal id from classfactory of %s.\n",debugstr_guid(rclsid));
1854 CloseHandle(hPipe);
1855 Sleep(1000);
1856 continue;
1857 }
1858 TRACE("read marshal id from pipe\n");
1859 CloseHandle(hPipe);
1860 break;
1861 }
1862
1863 if (tries >= MAXTRIES)
1864 return E_NOINTERFACE;
1865
1866 hres = CreateStreamOnHGlobal(0,TRUE,&pStm);
1867 if (hres != S_OK) return hres;
1868 hres = IStream_Write(pStm,marshalbuffer,bufferlen,&res);
1869 if (hres != S_OK) goto out;
1870 seekto.u.LowPart = 0;seekto.u.HighPart = 0;
1871 hres = IStream_Seek(pStm,seekto,STREAM_SEEK_SET,&newpos);
1872
1873 TRACE("unmarshalling local server\n");
1874 hres = CoUnmarshalInterface(pStm, &IID_IServiceProvider, (void**)&local_server);
1875 if(SUCCEEDED(hres))
1876 hres = IServiceProvider_QueryService(local_server, rclsid, iid, ppv);
1877 IServiceProvider_Release(local_server);
1878 out:
1879 IStream_Release(pStm);
1880 return hres;
1881 }
1882
1883
1884 struct local_server_params
1885 {
1886 CLSID clsid;
1887 IStream *stream;
1888 HANDLE pipe;
1889 HANDLE stop_event;
1890 HANDLE thread;
1891 BOOL multi_use;
1892 };
1893
1894 /* FIXME: should call to rpcss instead */
1895 static DWORD WINAPI local_server_thread(LPVOID param)
1896 {
1897 struct local_server_params * lsp = param;
1898 WCHAR pipefn[100];
1899 HRESULT hres;
1900 IStream *pStm = lsp->stream;
1901 STATSTG ststg;
1902 unsigned char *buffer;
1903 int buflen;
1904 LARGE_INTEGER seekto;
1905 ULARGE_INTEGER newpos;
1906 ULONG res;
1907 BOOL multi_use = lsp->multi_use;
1908 OVERLAPPED ovl;
1909 HANDLE pipe_event, hPipe = lsp->pipe, new_pipe;
1910 DWORD bytes;
1911
1912 TRACE("Starting threader for %s.\n",debugstr_guid(&lsp->clsid));
1913
1914 memset(&ovl, 0, sizeof(ovl));
1915 get_localserver_pipe_name(pipefn, &lsp->clsid);
1916 ovl.hEvent = pipe_event = CreateEventW(NULL, FALSE, FALSE, NULL);
1917
1918 while (1) {
1919 if (!ConnectNamedPipe(hPipe, &ovl))
1920 {
1921 DWORD error = GetLastError();
1922 if (error == ERROR_IO_PENDING)
1923 {
1924 HANDLE handles[2] = { pipe_event, lsp->stop_event };
1925 DWORD ret;
1926 ret = WaitForMultipleObjects(2, handles, FALSE, INFINITE);
1927 if (ret != WAIT_OBJECT_0)
1928 break;
1929 }
1930 /* client already connected isn't an error */
1931 else if (error != ERROR_PIPE_CONNECTED)
1932 {
1933 ERR("ConnectNamedPipe failed with error %d\n", GetLastError());
1934 break;
1935 }
1936 }
1937
1938 TRACE("marshalling LocalServer to client\n");
1939
1940 hres = IStream_Stat(pStm,&ststg,STATFLAG_NONAME);
1941 if (hres != S_OK)
1942 break;
1943
1944 seekto.u.LowPart = 0;
1945 seekto.u.HighPart = 0;
1946 hres = IStream_Seek(pStm,seekto,STREAM_SEEK_SET,&newpos);
1947 if (hres != S_OK) {
1948 FIXME("IStream_Seek failed, %x\n",hres);
1949 break;
1950 }
1951
1952 buflen = ststg.cbSize.u.LowPart;
1953 buffer = HeapAlloc(GetProcessHeap(),0,buflen);
1954
1955 hres = IStream_Read(pStm,buffer,buflen,&res);
1956 if (hres != S_OK) {
1957 FIXME("Stream Read failed, %x\n",hres);
1958 HeapFree(GetProcessHeap(),0,buffer);
1959 break;
1960 }
1961
1962 WriteFile(hPipe,buffer,buflen,&res,&ovl);
1963 GetOverlappedResult(hPipe, &ovl, &bytes, TRUE);
1964 HeapFree(GetProcessHeap(),0,buffer);
1965
1966 FlushFileBuffers(hPipe);
1967 DisconnectNamedPipe(hPipe);
1968 TRACE("done marshalling LocalServer\n");
1969
1970 if (!multi_use)
1971 {
1972 TRACE("single use object, shutting down pipe %s\n", debugstr_w(pipefn));
1973 break;
1974 }
1975 new_pipe = CreateNamedPipeW( pipefn, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
1976 PIPE_TYPE_BYTE|PIPE_WAIT, PIPE_UNLIMITED_INSTANCES,
1977 4096, 4096, 500 /* 0.5 second timeout */, NULL );
1978 if (new_pipe == INVALID_HANDLE_VALUE)
1979 {
1980 FIXME("pipe creation failed for %s, le is %u\n", debugstr_w(pipefn), GetLastError());
1981 break;
1982 }
1983 CloseHandle(hPipe);
1984 hPipe = new_pipe;
1985 }
1986
1987 CloseHandle(pipe_event);
1988 CloseHandle(hPipe);
1989 return 0;
1990 }
1991
1992 /* starts listening for a local server */
1993 HRESULT RPC_StartLocalServer(REFCLSID clsid, IStream *stream, BOOL multi_use, void **registration)
1994 {
1995 DWORD tid, err;
1996 struct local_server_params *lsp;
1997 WCHAR pipefn[100];
1998
1999 lsp = HeapAlloc(GetProcessHeap(), 0, sizeof(*lsp));
2000 if (!lsp)
2001 return E_OUTOFMEMORY;
2002
2003 lsp->clsid = *clsid;
2004 lsp->stream = stream;
2005 IStream_AddRef(stream);
2006 lsp->stop_event = CreateEventW(NULL, FALSE, FALSE, NULL);
2007 if (!lsp->stop_event)
2008 {
2009 HeapFree(GetProcessHeap(), 0, lsp);
2010 return HRESULT_FROM_WIN32(GetLastError());
2011 }
2012 lsp->multi_use = multi_use;
2013
2014 get_localserver_pipe_name(pipefn, &lsp->clsid);
2015 lsp->pipe = CreateNamedPipeW(pipefn, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
2016 PIPE_TYPE_BYTE|PIPE_WAIT, PIPE_UNLIMITED_INSTANCES,
2017 4096, 4096, 500 /* 0.5 second timeout */, NULL);
2018 if (lsp->pipe == INVALID_HANDLE_VALUE)
2019 {
2020 err = GetLastError();
2021 FIXME("pipe creation failed for %s, le is %u\n", debugstr_w(pipefn), GetLastError());
2022 CloseHandle(lsp->stop_event);
2023 HeapFree(GetProcessHeap(), 0, lsp);
2024 return HRESULT_FROM_WIN32(err);
2025 }
2026
2027 lsp->thread = CreateThread(NULL, 0, local_server_thread, lsp, 0, &tid);
2028 if (!lsp->thread)
2029 {
2030 CloseHandle(lsp->pipe);
2031 CloseHandle(lsp->stop_event);
2032 HeapFree(GetProcessHeap(), 0, lsp);
2033 return HRESULT_FROM_WIN32(GetLastError());
2034 }
2035
2036 *registration = lsp;
2037 return S_OK;
2038 }
2039
2040 /* stops listening for a local server */
2041 void RPC_StopLocalServer(void *registration)
2042 {
2043 struct local_server_params *lsp = registration;
2044
2045 /* signal local_server_thread to stop */
2046 SetEvent(lsp->stop_event);
2047 /* wait for it to exit */
2048 WaitForSingleObject(lsp->thread, INFINITE);
2049
2050 IStream_Release(lsp->stream);
2051 CloseHandle(lsp->stop_event);
2052 CloseHandle(lsp->thread);
2053 HeapFree(GetProcessHeap(), 0, lsp);
2054 }
Windows API implementation