dlls/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  embedding[] = { ' ', '-','E','m','b','e','d','d','i','n','g',0 };
 573     HKEY                key;
 574     char                buf[200];
 575     HRESULT             hres = E_UNEXPECTED;
 576     char                xclsid[80];
 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     WINE_StringFromCLSID((LPCLSID)rclsid,xclsid);
 584
 585     sprintf(buf,"CLSID\\%s\\LocalServer32",xclsid);
 586     hres = RegOpenKeyExA(HKEY_CLASSES_ROOT, buf, 0, KEY_READ, &key);
 587
 588     if (hres != ERROR_SUCCESS) {
 589         WARN("CLSID %s not registered as LocalServer32\n", xclsid);
 590         return REGDB_E_READREGDB; /* Probably */
 591     }
 592
 593     memset(exe,0,sizeof(exe));
 594     hres= RegQueryValueExW(key, NULL, NULL, NULL, (LPBYTE)exe, &exelen);
 595     RegCloseKey(key);
 596     if (hres) {
 597         WARN("No default value for LocalServer32 key\n");
 598         return REGDB_E_CLASSNOTREG; /* FIXME: check retval */
 599     }
 600
 601     memset(&sinfo,0,sizeof(sinfo));
 602     sinfo.cb = sizeof(sinfo);
 603
 604     /* EXE servers are started with the -Embedding switch. MSDN also claims /Embedding is used,
 605      * 9x does -Embedding, perhaps an 9x/NT difference?
 606      */
 607
 608     strcpyW(command, exe);
 609     strcatW(command, embedding);
 610
 611     TRACE("activating local server '%s' for %s\n", debugstr_w(command), xclsid);
 612
 613     if (!CreateProcessW(exe, command, NULL, NULL, FALSE, 0, NULL, NULL, &sinfo, &pinfo)) {
 614         WARN("failed to run local server %s\n", debugstr_w(exe));
 615         return HRESULT_FROM_WIN32(GetLastError());
 616     }
 617     CloseHandle(pinfo.hProcess);
 618     CloseHandle(pinfo.hThread);
 619
 620     return S_OK;
 621 }
 622
 623 /*
 624  * start_local_service()  - start a service given its name and parameters
 625  */
 626 static DWORD start_local_service(LPCWSTR name, DWORD num, LPWSTR *params)
 627 {
 628     SC_HANDLE handle, hsvc;
 629     DWORD     r = ERROR_FUNCTION_FAILED;
 630
 631     TRACE("Starting service %s %ld params\n", debugstr_w(name), num);
 632
 633     handle = OpenSCManagerW(NULL, NULL, SC_MANAGER_ALL_ACCESS);
 634     if (!handle)
 635         return r;
 636     hsvc = OpenServiceW(handle, name, SC_MANAGER_ALL_ACCESS);
 637     if (hsvc)
 638     {
 639         if(StartServiceW(hsvc, num, (LPCWSTR*)params))
 640             r = ERROR_SUCCESS;
 641         else
 642             r = GetLastError();
 643         if (r == ERROR_SERVICE_ALREADY_RUNNING)
 644             r = ERROR_SUCCESS;
 645         CloseServiceHandle(hsvc);
 646     }
 647     CloseServiceHandle(handle);
 648
 649     TRACE("StartService returned error %ld (%s)\n", r, r?"ok":"failed");
 650
 651     return r;
 652 }
 653
 654 /*
 655  * create_local_service()  - start a COM server in a service
 656  *
 657  *   To start a Local Service, we read the AppID value under
 658  * the class's CLSID key, then open the HKCR\\AppId key specified
 659  * there and check for a LocalService value.
 660  *
 661  * Note:  Local Services are not supported under Windows 9x
 662  */
 663 static HRESULT create_local_service(REFCLSID rclsid)
 664 {
 665     HRESULT hres = REGDB_E_READREGDB;
 666     WCHAR buf[40], keyname[50];
 667     static const WCHAR szClsId[] = { 'C','L','S','I','D','\\',0 };
 668     static const WCHAR szAppId[] = { 'A','p','p','I','d',0 };
 669     static const WCHAR szAppIdKey[] = { 'A','p','p','I','d','\\',0 };
 670     static const WCHAR szLocalService[] = { 'L','o','c','a','l','S','e','r','v','i','c','e',0 };
 671     static const WCHAR szServiceParams[] = {'S','e','r','v','i','c','e','P','a','r','a','m','s',0};
 672     HKEY hkey;
 673     LONG r;
 674     DWORD type, sz;
 675
 676     TRACE("Attempting to start Local service for %s\n", debugstr_guid(rclsid));
 677
 678     /* read the AppID value under the class's key */
 679     strcpyW(keyname,szClsId);
 680     StringFromGUID2(rclsid,&keyname[6],39);
 681     r = RegOpenKeyExW(HKEY_CLASSES_ROOT, keyname, 0, 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 #define PIPEPREF "\\\\.\\pipe\\"
 729
 730 /* FIXME: should call to rpcss instead */
 731 HRESULT RPC_GetLocalClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
 732 {
 733     HRESULT        hres;
 734     HANDLE         hPipe;
 735     char           pipefn[200];
 736     DWORD          res, bufferlen;
 737     char           marshalbuffer[200];
 738     IStream       *pStm;
 739     LARGE_INTEGER  seekto;
 740     ULARGE_INTEGER newpos;
 741     int            tries = 0;
 742
 743     static const int MAXTRIES = 30; /* 30 seconds */
 744
 745     TRACE("rclsid=%s, iid=%s\n", debugstr_guid(rclsid), debugstr_guid(iid));
 746
 747     strcpy(pipefn,PIPEPREF);
 748     WINE_StringFromCLSID(rclsid,pipefn+strlen(PIPEPREF));
 749
 750     while (tries++ < MAXTRIES) {
 751         TRACE("waiting for %s\n", pipefn);
 752
 753         WaitNamedPipeA( pipefn, NMPWAIT_WAIT_FOREVER );
 754         hPipe = CreateFileA(pipefn, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, 0);
 755         if (hPipe == INVALID_HANDLE_VALUE) {
 756             if (tries == 1) {
 757                 if ( (hres = create_server(rclsid)) &&
 758                      (hres = create_local_service(rclsid)) )
 759                     return hres;
 760                 Sleep(1000);
 761             } else {
 762                 WARN("Connecting to %s, no response yet, retrying: le is %lx\n",pipefn,GetLastError());
 763                 Sleep(1000);
 764             }
 765             continue;
 766         }
 767         bufferlen = 0;
 768         if (!ReadFile(hPipe,marshalbuffer,sizeof(marshalbuffer),&bufferlen,NULL)) {
 769             FIXME("Failed to read marshal id from classfactory of %s.\n",debugstr_guid(rclsid));
 770             Sleep(1000);
 771             continue;
 772         }
 773         TRACE("read marshal id from pipe\n");
 774         CloseHandle(hPipe);
 775         break;
 776     }
 777
 778     if (tries >= MAXTRIES)
 779         return E_NOINTERFACE;
 780
 781     hres = CreateStreamOnHGlobal(0,TRUE,&pStm);
 782     if (hres) return hres;
 783     hres = IStream_Write(pStm,marshalbuffer,bufferlen,&res);
 784     if (hres) goto out;
 785     seekto.u.LowPart = 0;seekto.u.HighPart = 0;
 786     hres = IStream_Seek(pStm,seekto,SEEK_SET,&newpos);
 787
 788     TRACE("unmarshalling classfactory\n");
 789     hres = CoUnmarshalInterface(pStm,&IID_IClassFactory,ppv);
 790 out:
 791     IStream_Release(pStm);
 792     return hres;
 793 }
 794
 795
 796 struct local_server_params
 797 {
 798     CLSID clsid;
 799     IStream *stream;
 800 };
 801
 802 /* FIXME: should call to rpcss instead */
 803 static DWORD WINAPI local_server_thread(LPVOID param)
 804 {
 805     struct local_server_params * lsp = (struct local_server_params *)param;
 806     HANDLE              hPipe;
 807     char                pipefn[200];
 808     HRESULT             hres;
 809     IStream             *pStm = lsp->stream;
 810     STATSTG             ststg;
 811     unsigned char       *buffer;
 812     int                 buflen;
 813     LARGE_INTEGER       seekto;
 814     ULARGE_INTEGER      newpos;
 815     ULONG               res;
 816
 817     TRACE("Starting threader for %s.\n",debugstr_guid(&lsp->clsid));
 818
 819     strcpy(pipefn,PIPEPREF);
 820     WINE_StringFromCLSID(&lsp->clsid,pipefn+strlen(PIPEPREF));
 821
 822     HeapFree(GetProcessHeap(), 0, lsp);
 823
 824     hPipe = CreateNamedPipeA( pipefn, PIPE_ACCESS_DUPLEX,
 825                               PIPE_TYPE_BYTE|PIPE_WAIT, PIPE_UNLIMITED_INSTANCES,
 826                               4096, 4096, 500 /* 0.5 second timeout */, NULL );
 827
 828     if (hPipe == INVALID_HANDLE_VALUE)
 829     {
 830         FIXME("pipe creation failed for %s, le is %ld\n",pipefn,GetLastError());
 831         return 1;
 832     }
 833
 834     while (1) {
 835         if (!ConnectNamedPipe(hPipe,NULL)) {
 836             ERR("Failure during ConnectNamedPipe %ld, ABORT!\n",GetLastError());
 837             break;
 838         }
 839
 840         TRACE("marshalling IClassFactory to client\n");
 841
 842         hres = IStream_Stat(pStm,&ststg,0);
 843         if (hres) return hres;
 844
 845         buflen = ststg.cbSize.u.LowPart;
 846         buffer = HeapAlloc(GetProcessHeap(),0,buflen);
 847         seekto.u.LowPart = 0;
 848         seekto.u.HighPart = 0;
 849         hres = IStream_Seek(pStm,seekto,SEEK_SET,&newpos);
 850         if (hres) {
 851             FIXME("IStream_Seek failed, %lx\n",hres);
 852             return hres;
 853         }
 854
 855         hres = IStream_Read(pStm,buffer,buflen,&res);
 856         if (hres) {
 857             FIXME("Stream Read failed, %lx\n",hres);
 858             return hres;
 859         }
 860
 861         WriteFile(hPipe,buffer,buflen,&res,NULL);
 862         FlushFileBuffers(hPipe);
 863         DisconnectNamedPipe(hPipe);
 864
 865         TRACE("done marshalling IClassFactory\n");
 866     }
 867     CloseHandle(hPipe);
 868     IStream_Release(pStm);
 869     return 0;
 870 }
 871
 872 void RPC_StartLocalServer(REFCLSID clsid, IStream *stream)
 873 {
 874     DWORD tid;
 875     HANDLE thread;
 876     struct local_server_params *lsp = HeapAlloc(GetProcessHeap(), 0, sizeof(*lsp));
 877
 878     lsp->clsid = *clsid;
 879     lsp->stream = stream;
 880
 881     thread = CreateThread(NULL, 0, local_server_thread, lsp, 0, &tid);
 882     CloseHandle(thread);
 883     /* FIXME: failure handling */
 884 }