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[reactos.git] / reactos / lib / ole32 / rpc.c
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22
23 #include "config.h"
24
25 #include <stdlib.h>
26 #include <stdarg.h>
27 #include <stdio.h>
28 #include <string.h>
29 #include <assert.h>
30
31 #define COBJMACROS
32 #define NONAMELESSUNION
33 #define NONAMELESSSTRUCT
34
35 #include "windef.h"
36 #include "winbase.h"
37 #include "winuser.h"
38 #include "winsvc.h"
39 #include "objbase.h"
40 #include "ole2.h"
41 #include "rpc.h"
42 #include "winerror.h"
43 #include "winreg.h"
44 #include "wtypes.h"
45 #include "wine/unicode.h"
46
47 #include "compobj_private.h"
48
49 #include "wine/debug.h"
50
51 WINE_DEFAULT_DEBUG_CHANNEL(ole);
52
53 static void __RPC_STUB dispatch_rpc(RPC_MESSAGE *msg);
54
55 /* we only use one function to dispatch calls for all methods - we use the
56 * RPC_IF_OLE flag to tell the RPC runtime that this is the case */
57 static RPC_DISPATCH_FUNCTION rpc_dispatch_table[1] = { dispatch_rpc }; /* (RO) */
58 static RPC_DISPATCH_TABLE rpc_dispatch = { 1, rpc_dispatch_table }; /* (RO) */
59
60 static struct list registered_interfaces = LIST_INIT(registered_interfaces); /* (CS csRegIf) */
61 static CRITICAL_SECTION csRegIf;
62 static CRITICAL_SECTION_DEBUG csRegIf_debug =
63 {
64 0, 0, &csRegIf,
65 { &csRegIf_debug.ProcessLocksList, &csRegIf_debug.ProcessLocksList },
66 0, 0, { 0, (DWORD)(__FILE__ ": dcom registered server interfaces") }
67 };
68 static CRITICAL_SECTION csRegIf = { &csRegIf_debug, -1, 0, 0, 0, 0 };
69
70 static WCHAR wszPipeTransport[] = {'n','c','a','c','n','_','n','p',0};
71
72
73 struct registered_if
74 {
75 struct list entry;
76 DWORD refs; /* ref count */
77 RPC_SERVER_INTERFACE If; /* interface registered with the RPC runtime */
78 };
79
80 /* get the pipe endpoint specified of the specified apartment */
81 static inline void get_rpc_endpoint(LPWSTR endpoint, const OXID *oxid)
82 {
83 /* FIXME: should get endpoint from rpcss */
84 static const WCHAR wszEndpointFormat[] = {'\\','p','i','p','e','\\','O','L','E','_','%','0','8','l','x','%','0','8','l','x',0};
85 wsprintfW(endpoint, wszEndpointFormat, (DWORD)(*oxid >> 32),(DWORD)*oxid);
86 }
87
88 typedef struct
89 {
90 const IRpcChannelBufferVtbl *lpVtbl;
91 DWORD refs;
92 } RpcChannelBuffer;
93
94 typedef struct
95 {
96 RpcChannelBuffer super; /* superclass */
97
98 RPC_BINDING_HANDLE bind; /* handle to the remote server */
99 } ClientRpcChannelBuffer;
100
101 struct dispatch_params
102 {
103 RPCOLEMESSAGE *msg; /* message */
104 IRpcStubBuffer *stub; /* stub buffer, if applicable */
105 IRpcChannelBuffer *chan; /* server channel buffer, if applicable */
106 HANDLE handle; /* handle that will become signaled when call finishes */
107 RPC_STATUS status; /* status (out) */
108 };
109
110 static HRESULT WINAPI RpcChannelBuffer_QueryInterface(LPRPCCHANNELBUFFER iface, REFIID riid, LPVOID *ppv)
111 {
112 *ppv = NULL;
113 if (IsEqualIID(riid,&IID_IRpcChannelBuffer) || IsEqualIID(riid,&IID_IUnknown))
114 {
115 *ppv = (LPVOID)iface;
116 IUnknown_AddRef(iface);
117 return S_OK;
118 }
119 return E_NOINTERFACE;
120 }
121
122 static ULONG WINAPI RpcChannelBuffer_AddRef(LPRPCCHANNELBUFFER iface)
123 {
124 RpcChannelBuffer *This = (RpcChannelBuffer *)iface;
125 return InterlockedIncrement(&This->refs);
126 }
127
128 static ULONG WINAPI ServerRpcChannelBuffer_Release(LPRPCCHANNELBUFFER iface)
129 {
130 RpcChannelBuffer *This = (RpcChannelBuffer *)iface;
131 ULONG ref;
132
133 ref = InterlockedDecrement(&This->refs);
134 if (ref)
135 return ref;
136
137 HeapFree(GetProcessHeap(), 0, This);
138 return 0;
139 }
140
141 static ULONG WINAPI ClientRpcChannelBuffer_Release(LPRPCCHANNELBUFFER iface)
142 {
143 ClientRpcChannelBuffer *This = (ClientRpcChannelBuffer *)iface;
144 ULONG ref;
145
146 ref = InterlockedDecrement(&This->super.refs);
147 if (ref)
148 return ref;
149
150 RpcBindingFree(&This->bind);
151 HeapFree(GetProcessHeap(), 0, This);
152 return 0;
153 }
154
155 static HRESULT WINAPI ServerRpcChannelBuffer_GetBuffer(LPRPCCHANNELBUFFER iface, RPCOLEMESSAGE* olemsg, REFIID riid)
156 {
157 RpcChannelBuffer *This = (RpcChannelBuffer *)iface;
158 RPC_MESSAGE *msg = (RPC_MESSAGE *)olemsg;
159 RPC_STATUS status;
160
161 TRACE("(%p)->(%p,%s)\n", This, olemsg, debugstr_guid(riid));
162
163 status = I_RpcGetBuffer(msg);
164
165 TRACE("-- %ld\n", status);
166
167 return HRESULT_FROM_WIN32(status);
168 }
169
170 static HRESULT WINAPI ClientRpcChannelBuffer_GetBuffer(LPRPCCHANNELBUFFER iface, RPCOLEMESSAGE* olemsg, REFIID riid)
171 {
172 ClientRpcChannelBuffer *This = (ClientRpcChannelBuffer *)iface;
173 RPC_MESSAGE *msg = (RPC_MESSAGE *)olemsg;
174 RPC_CLIENT_INTERFACE *cif;
175 RPC_STATUS status;
176
177 TRACE("(%p)->(%p,%s)\n", This, olemsg, debugstr_guid(riid));
178
179 cif = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(RPC_CLIENT_INTERFACE));
180 if (!cif)
181 return E_OUTOFMEMORY;
182
183 cif->Length = sizeof(RPC_CLIENT_INTERFACE);
184 /* RPC interface ID = COM interface ID */
185 cif->InterfaceId.SyntaxGUID = *riid;
186 /* COM objects always have a version of 0.0 */
187 cif->InterfaceId.SyntaxVersion.MajorVersion = 0;
188 cif->InterfaceId.SyntaxVersion.MinorVersion = 0;
189 msg->RpcInterfaceInformation = cif;
190 msg->Handle = This->bind;
191
192 status = I_RpcGetBuffer(msg);
193
194 TRACE("-- %ld\n", status);
195
196 return HRESULT_FROM_WIN32(status);
197 }
198
199 /* this thread runs an outgoing RPC */
200 static DWORD WINAPI rpc_sendreceive_thread(LPVOID param)
201 {
202 struct dispatch_params *data = (struct dispatch_params *) param;
203
204 /* FIXME: trap and rethrow RPC exceptions in app thread */
205 data->status = I_RpcSendReceive((RPC_MESSAGE *)data->msg);
206
207 TRACE("completed with status 0x%lx\n", data->status);
208
209 return 0;
210 }
211
212 static HRESULT WINAPI RpcChannelBuffer_SendReceive(LPRPCCHANNELBUFFER iface, RPCOLEMESSAGE *olemsg, ULONG *pstatus)
213 {
214 HRESULT hr = S_OK;
215 RPC_STATUS status;
216 DWORD index;
217 struct dispatch_params *params;
218 DWORD tid;
219
220 TRACE("(%p) iMethod=%ld\n", olemsg, olemsg->iMethod);
221
222 params = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*params));
223 if (!params) return E_OUTOFMEMORY;
224
225 params->msg = olemsg;
226 params->status = RPC_S_OK;
227
228 /* we use a separate thread here because we need to be able to
229 * pump the message loop in the application thread: if we do not,
230 * any windows created by this thread will hang and RPCs that try
231 * and re-enter this STA from an incoming server thread will
232 * deadlock. InstallShield is an example of that.
233 */
234 params->handle = CreateThread(NULL, 0, rpc_sendreceive_thread, params, 0, &tid);
235 if (!params->handle)
236 {
237 ERR("Could not create RpcSendReceive thread, error %lx\n", GetLastError());
238 hr = E_UNEXPECTED;
239 }
240
241 if (hr == S_OK)
242 hr = CoWaitForMultipleHandles(0, INFINITE, 1, &params->handle, &index);
243 CloseHandle(params->handle);
244
245 status = params->status;
246 HeapFree(GetProcessHeap(), 0, params);
247 params = NULL;
248
249 if (hr) return hr;
250
251 if (pstatus) *pstatus = status;
252
253 TRACE("RPC call status: 0x%lx\n", status);
254 if (status == RPC_S_OK)
255 hr = S_OK;
256 else if (status == RPC_S_CALL_FAILED)
257 hr = *(HRESULT *)olemsg->Buffer;
258 else
259 hr = HRESULT_FROM_WIN32(status);
260
261 TRACE("-- 0x%08lx\n", hr);
262
263 return hr;
264 }
265
266 static HRESULT WINAPI ServerRpcChannelBuffer_FreeBuffer(LPRPCCHANNELBUFFER iface, RPCOLEMESSAGE* olemsg)
267 {
268 RPC_MESSAGE *msg = (RPC_MESSAGE *)olemsg;
269 RPC_STATUS status;
270
271 TRACE("(%p)\n", msg);
272
273 status = I_RpcFreeBuffer(msg);
274
275 TRACE("-- %ld\n", status);
276
277 return HRESULT_FROM_WIN32(status);
278 }
279
280 static HRESULT WINAPI ClientRpcChannelBuffer_FreeBuffer(LPRPCCHANNELBUFFER iface, RPCOLEMESSAGE* olemsg)
281 {
282 RPC_MESSAGE *msg = (RPC_MESSAGE *)olemsg;
283 RPC_STATUS status;
284
285 TRACE("(%p)\n", msg);
286
287 status = I_RpcFreeBuffer(msg);
288
289 HeapFree(GetProcessHeap(), 0, msg->RpcInterfaceInformation);
290 msg->RpcInterfaceInformation = NULL;
291
292 TRACE("-- %ld\n", status);
293
294 return HRESULT_FROM_WIN32(status);
295 }
296
297 static HRESULT WINAPI RpcChannelBuffer_GetDestCtx(LPRPCCHANNELBUFFER iface, DWORD* pdwDestContext, void** ppvDestContext)
298 {
299 FIXME("(%p,%p), stub!\n", pdwDestContext, ppvDestContext);
300 return E_FAIL;
301 }
302
303 static HRESULT WINAPI RpcChannelBuffer_IsConnected(LPRPCCHANNELBUFFER iface)
304 {
305 TRACE("()\n");
306 /* native does nothing too */
307 return S_OK;
308 }
309
310 static const IRpcChannelBufferVtbl ClientRpcChannelBufferVtbl =
311 {
312 RpcChannelBuffer_QueryInterface,
313 RpcChannelBuffer_AddRef,
314 ClientRpcChannelBuffer_Release,
315 ClientRpcChannelBuffer_GetBuffer,
316 RpcChannelBuffer_SendReceive,
317 ClientRpcChannelBuffer_FreeBuffer,
318 RpcChannelBuffer_GetDestCtx,
319 RpcChannelBuffer_IsConnected
320 };
321
322 static const IRpcChannelBufferVtbl ServerRpcChannelBufferVtbl =
323 {
324 RpcChannelBuffer_QueryInterface,
325 RpcChannelBuffer_AddRef,
326 ServerRpcChannelBuffer_Release,
327 ServerRpcChannelBuffer_GetBuffer,
328 RpcChannelBuffer_SendReceive,
329 ServerRpcChannelBuffer_FreeBuffer,
330 RpcChannelBuffer_GetDestCtx,
331 RpcChannelBuffer_IsConnected
332 };
333
334 /* returns a channel buffer for proxies */
335 HRESULT RPC_CreateClientChannel(const OXID *oxid, const IPID *ipid, IRpcChannelBuffer **chan)
336 {
337 ClientRpcChannelBuffer *This;
338 WCHAR endpoint[200];
339 RPC_BINDING_HANDLE bind;
340 RPC_STATUS status;
341 LPWSTR string_binding;
342
343 /* connect to the apartment listener thread */
344 get_rpc_endpoint(endpoint, oxid);
345
346 TRACE("proxy pipe: connecting to endpoint: %s\n", debugstr_w(endpoint));
347
348 status = RpcStringBindingComposeW(
349 NULL,
350 wszPipeTransport,
351 NULL,
352 endpoint,
353 NULL,
354 &string_binding);
355
356 if (status == RPC_S_OK)
357 {
358 status = RpcBindingFromStringBindingW(string_binding, &bind);
359
360 if (status == RPC_S_OK)
361 {
362 IPID ipid2 = *ipid; /* why can't RpcBindingSetObject take a const? */
363 status = RpcBindingSetObject(bind, &ipid2);
364 if (status != RPC_S_OK)
365 RpcBindingFree(&bind);
366 }
367
368 RpcStringFreeW(&string_binding);
369 }
370
371 if (status != RPC_S_OK)
372 {
373 ERR("Couldn't get binding for endpoint %s, status = %ld\n", debugstr_w(endpoint), status);
374 return HRESULT_FROM_WIN32(status);
375 }
376
377 This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
378 if (!This)
379 {
380 RpcBindingFree(&bind);
381 return E_OUTOFMEMORY;
382 }
383
384 This->super.lpVtbl = &ClientRpcChannelBufferVtbl;
385 This->super.refs = 1;
386 This->bind = bind;
387
388 *chan = (IRpcChannelBuffer*)This;
389
390 return S_OK;
391 }
392
393 HRESULT RPC_CreateServerChannel(IRpcChannelBuffer **chan)
394 {
395 RpcChannelBuffer *This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
396 if (!This)
397 return E_OUTOFMEMORY;
398
399 This->lpVtbl = &ServerRpcChannelBufferVtbl;
400 This->refs = 1;
401
402 *chan = (IRpcChannelBuffer*)This;
403
404 return S_OK;
405 }
406
407
408 HRESULT RPC_ExecuteCall(struct dispatch_params *params)
409 {
410 HRESULT hr = IRpcStubBuffer_Invoke(params->stub, params->msg, params->chan);
411 IRpcStubBuffer_Release(params->stub);
412 if (params->handle) SetEvent(params->handle);
413 return hr;
414 }
415
416 static void __RPC_STUB dispatch_rpc(RPC_MESSAGE *msg)
417 {
418 struct dispatch_params *params;
419 IRpcStubBuffer *stub;
420 APARTMENT *apt;
421 IPID ipid;
422
423 RpcBindingInqObject(msg->Handle, &ipid);
424
425 TRACE("ipid = %s, iMethod = %d\n", debugstr_guid(&ipid), msg->ProcNum);
426
427 params = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*params));
428 if (!params) return RpcRaiseException(E_OUTOFMEMORY);
429
430 stub = ipid_to_apt_and_stubbuffer(&ipid, &apt);
431 if (!apt || !stub)
432 {
433 if (apt) apartment_release(apt);
434 /* ipid_to_apt_and_stubbuffer will already have logged the error */
435 return RpcRaiseException(RPC_E_DISCONNECTED);
436 }
437
438 params->msg = (RPCOLEMESSAGE *)msg;
439 params->stub = stub;
440 params->chan = NULL; /* FIXME: pass server channel */
441 params->status = RPC_S_OK;
442
443 /* Note: this is the important difference between STAs and MTAs - we
444 * always execute RPCs to STAs in the thread that originally created the
445 * apartment (i.e. the one that pumps messages to the window) */
446 if (apt->model & COINIT_APARTMENTTHREADED)
447 {
448 params->handle = CreateEventW(NULL, FALSE, FALSE, NULL);
449
450 TRACE("Calling apartment thread 0x%08lx...\n", apt->tid);
451
452 PostMessageW(apt->win, DM_EXECUTERPC, 0, (LPARAM)params);
453 WaitForSingleObject(params->handle, INFINITE);
454 CloseHandle(params->handle);
455 }
456 else
457 RPC_ExecuteCall(params);
458
459 HeapFree(GetProcessHeap(), 0, params);
460
461 apartment_release(apt);
462 }
463
464 /* stub registration */
465 HRESULT RPC_RegisterInterface(REFIID riid)
466 {
467 struct registered_if *rif;
468 BOOL found = FALSE;
469 HRESULT hr = S_OK;
470
471 TRACE("(%s)\n", debugstr_guid(riid));
472
473 EnterCriticalSection(&csRegIf);
474 LIST_FOR_EACH_ENTRY(rif, &registered_interfaces, struct registered_if, entry)
475 {
476 if (IsEqualGUID(&rif->If.InterfaceId.SyntaxGUID, riid))
477 {
478 rif->refs++;
479 found = TRUE;
480 break;
481 }
482 }
483 if (!found)
484 {
485 TRACE("Creating new interface\n");
486
487 rif = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*rif));
488 if (rif)
489 {
490 RPC_STATUS status;
491
492 rif->refs = 1;
493 rif->If.Length = sizeof(RPC_SERVER_INTERFACE);
494 /* RPC interface ID = COM interface ID */
495 rif->If.InterfaceId.SyntaxGUID = *riid;
496 rif->If.DispatchTable = &rpc_dispatch;
497 /* all other fields are 0, including the version asCOM objects
498 * always have a version of 0.0 */
499 status = RpcServerRegisterIfEx(
500 (RPC_IF_HANDLE)&rif->If,
501 NULL, NULL,
502 RPC_IF_OLE | RPC_IF_AUTOLISTEN,
503 RPC_C_LISTEN_MAX_CALLS_DEFAULT,
504 NULL);
505 if (status == RPC_S_OK)
506 list_add_tail(&registered_interfaces, &rif->entry);
507 else
508 {
509 ERR("RpcServerRegisterIfEx failed with error %ld\n", status);
510 HeapFree(GetProcessHeap(), 0, rif);
511 hr = HRESULT_FROM_WIN32(status);
512 }
513 }
514 else
515 hr = E_OUTOFMEMORY;
516 }
517 LeaveCriticalSection(&csRegIf);
518 return hr;
519 }
520
521 /* stub unregistration */
522 void RPC_UnregisterInterface(REFIID riid)
523 {
524 struct registered_if *rif;
525 EnterCriticalSection(&csRegIf);
526 LIST_FOR_EACH_ENTRY(rif, &registered_interfaces, struct registered_if, entry)
527 {
528 if (IsEqualGUID(&rif->If.InterfaceId.SyntaxGUID, riid))
529 {
530 if (!--rif->refs)
531 {
532 #if 0 /* this is a stub in builtin and spams the console with FIXME's */
533 IID iid = *riid; /* RpcServerUnregisterIf doesn't take const IID */
534 RpcServerUnregisterIf((RPC_IF_HANDLE)&rif->If, &iid, 0);
535 list_remove(&rif->entry);
536 HeapFree(GetProcessHeap(), 0, rif);
537 #endif
538 }
539 break;
540 }
541 }
542 LeaveCriticalSection(&csRegIf);
543 }
544
545 /* make the apartment reachable by other threads and processes and create the
546 * IRemUnknown object */
547 void RPC_StartRemoting(struct apartment *apt)
548 {
549 if (!InterlockedExchange(&apt->remoting_started, TRUE))
550 {
551 WCHAR endpoint[200];
552 RPC_STATUS status;
553
554 get_rpc_endpoint(endpoint, &apt->oxid);
555
556 status = RpcServerUseProtseqEpW(
557 wszPipeTransport,
558 RPC_C_PROTSEQ_MAX_REQS_DEFAULT,
559 endpoint,
560 NULL);
561 if (status != RPC_S_OK)
562 ERR("Couldn't register endpoint %s\n", debugstr_w(endpoint));
563
564 /* FIXME: move remote unknown exporting into this function */
565 }
566 start_apartment_remote_unknown();
567 }
568
569
570 static HRESULT create_server(REFCLSID rclsid)
571 {
572 static const WCHAR wszLocalServer32[] = { 'L','o','c','a','l','S','e','r','v','e','r','3','2',0 };
573 static const WCHAR embedding[] = { ' ', '-','E','m','b','e','d','d','i','n','g',0 };
574 HKEY hkeyclsid;
575 HKEY key;
576 HRESULT hres = E_UNEXPECTED;
577 WCHAR exe[MAX_PATH+1];
578 DWORD exelen = sizeof(exe);
579 WCHAR command[MAX_PATH+sizeof(embedding)/sizeof(WCHAR)];
580 STARTUPINFOW sinfo;
581 PROCESS_INFORMATION pinfo;
582
583 hres = HRESULT_FROM_WIN32(COM_OpenKeyForCLSID(rclsid, KEY_READ, &hkeyclsid));
584 if (hres != S_OK) {
585 ERR("class %s not registered\n", debugstr_guid(rclsid));
586 return REGDB_E_READREGDB;
587 }
588
589 hres = RegOpenKeyExW(hkeyclsid, wszLocalServer32, 0, KEY_READ, &key);
590
591 if (hres != ERROR_SUCCESS) {
592 WARN("class %s not registered as LocalServer32\n", debugstr_guid(rclsid));
593 return REGDB_E_READREGDB; /* Probably */
594 }
595
596 memset(exe,0,sizeof(exe));
597 hres= RegQueryValueExW(key, NULL, NULL, NULL, (LPBYTE)exe, &exelen);
598 RegCloseKey(key);
599 if (hres) {
600 WARN("No default value for LocalServer32 key\n");
601 return REGDB_E_CLASSNOTREG; /* FIXME: check retval */
602 }
603
604 memset(&sinfo,0,sizeof(sinfo));
605 sinfo.cb = sizeof(sinfo);
606
607 /* EXE servers are started with the -Embedding switch. MSDN also claims /Embedding is used,
608 * 9x does -Embedding, perhaps an 9x/NT difference?
609 */
610
611 strcpyW(command, exe);
612 strcatW(command, embedding);
613
614 TRACE("activating local server %s for %s\n", debugstr_w(command), debugstr_guid(rclsid));
615
616 if (!CreateProcessW(exe, command, NULL, NULL, FALSE, 0, NULL, NULL, &sinfo, &pinfo)) {
617 WARN("failed to run local server %s\n", debugstr_w(exe));
618 return HRESULT_FROM_WIN32(GetLastError());
619 }
620 CloseHandle(pinfo.hProcess);
621 CloseHandle(pinfo.hThread);
622
623 return S_OK;
624 }
625
626 /*
627 * start_local_service() - start a service given its name and parameters
628 */
629 static DWORD start_local_service(LPCWSTR name, DWORD num, LPWSTR *params)
630 {
631 SC_HANDLE handle, hsvc;
632 DWORD r = ERROR_FUNCTION_FAILED;
633
634 TRACE("Starting service %s %ld params\n", debugstr_w(name), num);
635
636 handle = OpenSCManagerW(NULL, NULL, SC_MANAGER_ALL_ACCESS);
637 if (!handle)
638 return r;
639 hsvc = OpenServiceW(handle, name, SC_MANAGER_ALL_ACCESS);
640 if (hsvc)
641 {
642 if(StartServiceW(hsvc, num, (LPCWSTR*)params))
643 r = ERROR_SUCCESS;
644 else
645 r = GetLastError();
646 if (r == ERROR_SERVICE_ALREADY_RUNNING)
647 r = ERROR_SUCCESS;
648 CloseServiceHandle(hsvc);
649 }
650 CloseServiceHandle(handle);
651
652 TRACE("StartService returned error %ld (%s)\n", r, r?"ok":"failed");
653
654 return r;
655 }
656
657 /*
658 * create_local_service() - start a COM server in a service
659 *
660 * To start a Local Service, we read the AppID value under
661 * the class's CLSID key, then open the HKCR\\AppId key specified
662 * there and check for a LocalService value.
663 *
664 * Note: Local Services are not supported under Windows 9x
665 */
666 static HRESULT create_local_service(REFCLSID rclsid)
667 {
668 HRESULT hres = REGDB_E_READREGDB;
669 WCHAR buf[CHARS_IN_GUID], keyname[50];
670 static const WCHAR szAppId[] = { 'A','p','p','I','d',0 };
671 static const WCHAR szAppIdKey[] = { 'A','p','p','I','d','\\',0 };
672 static const WCHAR szLocalService[] = { 'L','o','c','a','l','S','e','r','v','i','c','e',0 };
673 static const WCHAR szServiceParams[] = {'S','e','r','v','i','c','e','P','a','r','a','m','s',0};
674 HKEY hkey;
675 LONG r;
676 DWORD type, sz;
677
678 TRACE("Attempting to start Local service for %s\n", debugstr_guid(rclsid));
679
680 /* read the AppID value under the class's key */
681 r = COM_OpenKeyForCLSID(rclsid, KEY_READ, &hkey);
682 if (r!=ERROR_SUCCESS)
683 return hres;
684 sz = sizeof buf;
685 r = RegQueryValueExW(hkey, szAppId, NULL, &type, (LPBYTE)buf, &sz);
686 RegCloseKey(hkey);
687 if (r!=ERROR_SUCCESS || type!=REG_SZ)
688 return hres;
689
690 /* read the LocalService and ServiceParameters values from the AppID key */
691 strcpyW(keyname, szAppIdKey);
692 strcatW(keyname, buf);
693 r = RegOpenKeyExW(HKEY_CLASSES_ROOT, keyname, 0, KEY_READ, &hkey);
694 if (r!=ERROR_SUCCESS)
695 return hres;
696 sz = sizeof buf;
697 r = RegQueryValueExW(hkey, szLocalService, NULL, &type, (LPBYTE)buf, &sz);
698 if (r==ERROR_SUCCESS && type==REG_SZ)
699 {
700 DWORD num_args = 0;
701 LPWSTR args[1] = { NULL };
702
703 /*
704 * FIXME: I'm not really sure how to deal with the service parameters.
705 * I suspect that the string returned from RegQueryValueExW
706 * should be split into a number of arguments by spaces.
707 * It would make more sense if ServiceParams contained a
708 * REG_MULTI_SZ here, but it's a REG_SZ for the services
709 * that I'm interested in for the moment.
710 */
711 r = RegQueryValueExW(hkey, szServiceParams, NULL, &type, NULL, &sz);
712 if (r == ERROR_SUCCESS && type == REG_SZ && sz)
713 {
714 args[0] = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sz);
715 num_args++;
716 RegQueryValueExW(hkey, szServiceParams, NULL, &type, (LPBYTE)args[0], &sz);
717 }
718 r = start_local_service(buf, num_args, args);
719 if (r==ERROR_SUCCESS)
720 hres = S_OK;
721 HeapFree(GetProcessHeap(),0,args[0]);
722 }
723 RegCloseKey(hkey);
724
725 return hres;
726 }
727
728
729 static void get_localserver_pipe_name(WCHAR *pipefn, REFCLSID rclsid)
730 {
731 static const WCHAR wszPipeRef[] = {'\\','\\','.','\\','p','i','p','e','\\',0};
732 strcpyW(pipefn, wszPipeRef);
733 StringFromGUID2(rclsid, pipefn + sizeof(wszPipeRef)/sizeof(wszPipeRef[0]) - 1, CHARS_IN_GUID);
734 }
735
736 /* FIXME: should call to rpcss instead */
737 HRESULT RPC_GetLocalClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
738 {
739 HRESULT hres;
740 HANDLE hPipe;
741 WCHAR pipefn[100];
742 DWORD res, bufferlen;
743 char marshalbuffer[200];
744 IStream *pStm;
745 LARGE_INTEGER seekto;
746 ULARGE_INTEGER newpos;
747 int tries = 0;
748
749 static const int MAXTRIES = 30; /* 30 seconds */
750
751 TRACE("rclsid=%s, iid=%s\n", debugstr_guid(rclsid), debugstr_guid(iid));
752
753 get_localserver_pipe_name(pipefn, rclsid);
754
755 while (tries++ < MAXTRIES) {
756 TRACE("waiting for %s\n", debugstr_w(pipefn));
757
758 WaitNamedPipeW( pipefn, NMPWAIT_WAIT_FOREVER );
759 hPipe = CreateFileW(pipefn, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, 0);
760 if (hPipe == INVALID_HANDLE_VALUE) {
761 if (tries == 1) {
762 if ( (hres = create_server(rclsid)) &&
763 (hres = create_local_service(rclsid)) )
764 return hres;
765 Sleep(1000);
766 } else {
767 WARN("Connecting to %s, no response yet, retrying: le is %lx\n", debugstr_w(pipefn), GetLastError());
768 Sleep(1000);
769 }
770 continue;
771 }
772 bufferlen = 0;
773 if (!ReadFile(hPipe,marshalbuffer,sizeof(marshalbuffer),&bufferlen,NULL)) {
774 FIXME("Failed to read marshal id from classfactory of %s.\n",debugstr_guid(rclsid));
775 Sleep(1000);
776 continue;
777 }
778 TRACE("read marshal id from pipe\n");
779 CloseHandle(hPipe);
780 break;
781 }
782
783 if (tries >= MAXTRIES)
784 return E_NOINTERFACE;
785
786 hres = CreateStreamOnHGlobal(0,TRUE,&pStm);
787 if (hres) return hres;
788 hres = IStream_Write(pStm,marshalbuffer,bufferlen,&res);
789 if (hres) goto out;
790 seekto.u.LowPart = 0;seekto.u.HighPart = 0;
791 hres = IStream_Seek(pStm,seekto,SEEK_SET,&newpos);
792
793 TRACE("unmarshalling classfactory\n");
794 hres = CoUnmarshalInterface(pStm,&IID_IClassFactory,ppv);
795 out:
796 IStream_Release(pStm);
797 return hres;
798 }
799
800
801 struct local_server_params
802 {
803 CLSID clsid;
804 IStream *stream;
805 };
806
807 /* FIXME: should call to rpcss instead */
808 static DWORD WINAPI local_server_thread(LPVOID param)
809 {
810 struct local_server_params * lsp = (struct local_server_params *)param;
811 HANDLE hPipe;
812 WCHAR pipefn[100];
813 HRESULT hres;
814 IStream *pStm = lsp->stream;
815 STATSTG ststg;
816 unsigned char *buffer;
817 int buflen;
818 LARGE_INTEGER seekto;
819 ULARGE_INTEGER newpos;
820 ULONG res;
821
822 TRACE("Starting threader for %s.\n",debugstr_guid(&lsp->clsid));
823
824 get_localserver_pipe_name(pipefn, &lsp->clsid);
825
826 HeapFree(GetProcessHeap(), 0, lsp);
827
828 hPipe = CreateNamedPipeW( pipefn, PIPE_ACCESS_DUPLEX,
829 PIPE_TYPE_BYTE|PIPE_WAIT, PIPE_UNLIMITED_INSTANCES,
830 4096, 4096, 500 /* 0.5 second timeout */, NULL );
831
832 if (hPipe == INVALID_HANDLE_VALUE)
833 {
834 FIXME("pipe creation failed for %s, le is %ld\n", debugstr_w(pipefn), GetLastError());
835 return 1;
836 }
837
838 while (1) {
839 if (!ConnectNamedPipe(hPipe,NULL)) {
840 ERR("Failure during ConnectNamedPipe %ld, ABORT!\n",GetLastError());
841 break;
842 }
843
844 TRACE("marshalling IClassFactory to client\n");
845
846 hres = IStream_Stat(pStm,&ststg,0);
847 if (hres) return hres;
848
849 buflen = ststg.cbSize.u.LowPart;
850 buffer = HeapAlloc(GetProcessHeap(),0,buflen);
851 seekto.u.LowPart = 0;
852 seekto.u.HighPart = 0;
853 hres = IStream_Seek(pStm,seekto,SEEK_SET,&newpos);
854 if (hres) {
855 FIXME("IStream_Seek failed, %lx\n",hres);
856 return hres;
857 }
858
859 hres = IStream_Read(pStm,buffer,buflen,&res);
860 if (hres) {
861 FIXME("Stream Read failed, %lx\n",hres);
862 return hres;
863 }
864
865 WriteFile(hPipe,buffer,buflen,&res,NULL);
866 FlushFileBuffers(hPipe);
867 DisconnectNamedPipe(hPipe);
868
869 TRACE("done marshalling IClassFactory\n");
870 }
871 CloseHandle(hPipe);
872 IStream_Release(pStm);
873 return 0;
874 }
875
876 void RPC_StartLocalServer(REFCLSID clsid, IStream *stream)
877 {
878 DWORD tid;
879 HANDLE thread;
880 struct local_server_params *lsp = HeapAlloc(GetProcessHeap(), 0, sizeof(*lsp));
881
882 lsp->clsid = *clsid;
883 lsp->stream = stream;
884
885 thread = CreateThread(NULL, 0, local_server_thread, lsp, 0, &tid);
886 CloseHandle(thread);
887 /* FIXME: failure handling */
888 }
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