git.oblomov.eu Git - wine/blob - dlls/ole32/rpc.c

   1 /*
   2  *      (Local) RPC Stuff
   3  *
   4  *  Copyright 2002  Marcus Meissner
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <stdlib.h>
  24 #include <stdarg.h>
  25 #include <stdio.h>
  26 #include <string.h>
  27 #include <assert.h>
  28
  29 #define COBJMACROS
  30 #define NONAMELESSUNION
  31 #define NONAMELESSSTRUCT
  32
  33 #include "windef.h"
  34 #include "winbase.h"
  35 #include "winuser.h"
  36 #include "objbase.h"
  37 #include "ole2.h"
  38 #include "ole2ver.h"
  39 #include "rpc.h"
  40 #include "winerror.h"
  41 #include "winreg.h"
  42 #include "wownt32.h"
  43 #include "wtypes.h"
  44 #include "wine/unicode.h"
  45 #include "wine/winbase16.h"
  46 #include "compobj_private.h"
  47 #include "ifs.h"
  48
  49 #include "compobj_private.h"
  50
  51 #include "wine/debug.h"
  52
  53 WINE_DEFAULT_DEBUG_CHANNEL(ole);
  54
  55 #define REQTYPE_REQUEST         0
  56 typedef struct _wine_rpc_request_header {
  57     DWORD               reqid;
  58     wine_marshal_id     mid;
  59     DWORD               iMethod;
  60     DWORD               cbBuffer;
  61 } wine_rpc_request_header;
  62
  63 #define REQTYPE_RESPONSE        1
  64 typedef struct _wine_rpc_response_header {
  65     DWORD               reqid;
  66     DWORD               cbBuffer;
  67     DWORD               retval;
  68 } wine_rpc_response_header;
  69
  70 /* used when shutting down a pipe, e.g. at the end of a process */
  71 #define REQTYPE_DISCONNECT      2
  72 typedef struct _wine_rpc_disconnect_header {
  73   DWORD reqid;
  74   wine_marshal_id mid; /* mid of stub to delete */
  75 } wine_rpc_disconnect_header;
  76
  77
  78 #define REQSTATE_START                  0
  79 #define REQSTATE_REQ_QUEUED             1
  80 #define REQSTATE_REQ_WAITING_FOR_REPLY  2
  81 #define REQSTATE_REQ_GOT                3
  82 #define REQSTATE_INVOKING               4
  83 #define REQSTATE_RESP_QUEUED            5
  84 #define REQSTATE_RESP_GOT               6
  85 #define REQSTATE_DONE                   6
  86
  87 typedef struct _wine_rpc_request {
  88     int                         state;
  89     HANDLE                      hPipe;  /* temp copy of handle */
  90     wine_rpc_request_header     reqh;
  91     wine_rpc_response_header    resph;
  92     LPBYTE                      Buffer;
  93 } wine_rpc_request;
  94
  95 static wine_rpc_request **reqs = NULL;
  96 static int nrofreqs = 0;
  97
  98 /* This pipe is _thread_ based, each thread which talks to a remote
  99  * apartment (mid) has its own pipe */
 100 typedef struct _wine_pipe {
 101     wine_marshal_id     mid;    /* target mid */
 102     DWORD               tid;    /* thread which owns this outgoing pipe */
 103     HANDLE              hPipe;
 104
 105     int                 pending;
 106     HANDLE              hThread;
 107     CRITICAL_SECTION    crit;
 108 } wine_pipe;
 109
 110 static wine_pipe *pipes = NULL;
 111 static int nrofpipes = 0;
 112
 113 typedef struct _PipeBuf {
 114     IRpcChannelBufferVtbl       *lpVtbl;
 115     DWORD                               ref;
 116
 117     wine_marshal_id                     mid;
 118     wine_pipe                           *pipe;
 119 } PipeBuf;
 120
 121 static HRESULT WINAPI
 122 read_pipe(HANDLE hf, LPVOID ptr, DWORD size) {
 123     DWORD res;
 124     if (!ReadFile(hf,ptr,size,&res,NULL)) {
 125         FIXME("Failed to read from %p, le is %lx\n",hf,GetLastError());
 126         return E_FAIL;
 127     }
 128     if (res!=size) {
 129         FIXME("Read only %ld of %ld bytes from %p.\n",res,size,hf);
 130         return E_FAIL;
 131     }
 132     return S_OK;
 133 }
 134
 135 static void
 136 drs(LPCSTR where) {
 137 #if 0
 138     static int nrofreaders = 0;
 139
 140     int i, states[10];
 141
 142     memset(states,0,sizeof(states));
 143     for (i=nrofreqs;i--;)
 144         states[reqs[i]->state]++;
 145     FIXME("%lx/%s/%d: rq %d, w %d, rg %d, rsq %d, rsg %d, d %d\n",
 146             GetCurrentProcessId(),
 147             where,
 148             nrofreaders,
 149             states[REQSTATE_REQ_QUEUED],
 150             states[REQSTATE_REQ_WAITING_FOR_REPLY],
 151             states[REQSTATE_REQ_GOT],
 152             states[REQSTATE_RESP_QUEUED],
 153             states[REQSTATE_RESP_GOT],
 154             states[REQSTATE_DONE]
 155     );
 156 #endif
 157
 158     return ;
 159 }
 160
 161 static HRESULT WINAPI
 162 write_pipe(HANDLE hf, LPVOID ptr, DWORD size) {
 163     DWORD res;
 164     if (!WriteFile(hf,ptr,size,&res,NULL)) {
 165         FIXME("Failed to write to %p, le is %lx\n",hf,GetLastError());
 166         return E_FAIL;
 167     }
 168     if (res!=size) {
 169         FIXME("Wrote only %ld of %ld bytes to %p.\n",res,size,hf);
 170         return E_FAIL;
 171     }
 172     return S_OK;
 173 }
 174
 175 static DWORD WINAPI _StubReaderThread(LPVOID);
 176
 177 static HRESULT
 178 PIPE_RegisterPipe(wine_marshal_id *mid, HANDLE hPipe, BOOL startreader) {
 179   int   i;
 180   char  pipefn[100];
 181   wine_pipe *new_pipes;
 182
 183   for (i=0;i<nrofpipes;i++)
 184     if (pipes[i].mid.processid==mid->processid)
 185       return S_OK;
 186   if (pipes)
 187     new_pipes=(wine_pipe*)HeapReAlloc(GetProcessHeap(),0,pipes,sizeof(pipes[0])*(nrofpipes+1));
 188   else
 189     new_pipes=(wine_pipe*)HeapAlloc(GetProcessHeap(),0,sizeof(pipes[0]));
 190   if (!new_pipes) return E_OUTOFMEMORY;
 191   pipes = new_pipes;
 192   sprintf(pipefn,OLESTUBMGR"_%08lx",mid->processid);
 193   memcpy(&(pipes[nrofpipes].mid),mid,sizeof(*mid));
 194   pipes[nrofpipes].hPipe        = hPipe;
 195   InitializeCriticalSection(&(pipes[nrofpipes].crit));
 196   nrofpipes++;
 197   if (startreader) {
 198       pipes[nrofpipes-1].hThread = CreateThread(NULL,0,_StubReaderThread,(LPVOID)(pipes+(nrofpipes-1)),0,&(pipes[nrofpipes-1].tid));
 199   } else {
 200       pipes[nrofpipes-1].tid     = GetCurrentThreadId();
 201   }
 202   return S_OK;
 203 }
 204
 205 static HANDLE
 206 PIPE_FindByMID(wine_marshal_id *mid) {
 207   int i;
 208   for (i=0;i<nrofpipes;i++)
 209     if ((pipes[i].mid.processid==mid->processid) &&
 210         (GetCurrentThreadId()==pipes[i].tid)
 211     )
 212       return pipes[i].hPipe;
 213   return INVALID_HANDLE_VALUE;
 214 }
 215
 216 static wine_pipe*
 217 PIPE_GetFromMID(wine_marshal_id *mid) {
 218   int i;
 219   for (i=0;i<nrofpipes;i++) {
 220     if ((pipes[i].mid.processid==mid->processid) &&
 221         (GetCurrentThreadId()==pipes[i].tid)
 222     )
 223       return pipes+i;
 224   }
 225   return NULL;
 226 }
 227
 228 static HRESULT
 229 RPC_GetRequest(wine_rpc_request **req) {
 230     static int reqid = 0xdeadbeef;
 231     int i;
 232
 233     for (i=0;i<nrofreqs;i++) { /* try to reuse */
 234         if (reqs[i]->state == REQSTATE_DONE) {
 235             reqs[i]->reqh.reqid = reqid++;
 236             reqs[i]->resph.reqid = reqs[i]->reqh.reqid;
 237             reqs[i]->hPipe = INVALID_HANDLE_VALUE;
 238             *req = reqs[i];
 239             reqs[i]->state = REQSTATE_START;
 240             return S_OK;
 241         }
 242     }
 243     /* create new */
 244     if (reqs)
 245         reqs = (wine_rpc_request**)HeapReAlloc(
 246                         GetProcessHeap(),
 247                         HEAP_ZERO_MEMORY,
 248                         reqs,
 249                         sizeof(wine_rpc_request*)*(nrofreqs+1)
 250                 );
 251     else
 252         reqs = (wine_rpc_request**)HeapAlloc(
 253                         GetProcessHeap(),
 254                         HEAP_ZERO_MEMORY,
 255                         sizeof(wine_rpc_request*)
 256                 );
 257     if (!reqs)
 258         return E_OUTOFMEMORY;
 259     reqs[nrofreqs] = (wine_rpc_request*)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(wine_rpc_request));
 260     reqs[nrofreqs]->reqh.reqid = reqid++;
 261     reqs[nrofreqs]->resph.reqid = reqs[nrofreqs]->reqh.reqid;
 262     reqs[nrofreqs]->hPipe = INVALID_HANDLE_VALUE;
 263     *req = reqs[nrofreqs];
 264     reqs[nrofreqs]->state = REQSTATE_START;
 265     nrofreqs++;
 266     return S_OK;
 267 }
 268
 269 static void
 270 RPC_FreeRequest(wine_rpc_request *req) {
 271     req->state = REQSTATE_DONE; /* Just reuse slot. */
 272     return;
 273 }
 274
 275 static HRESULT WINAPI
 276 PipeBuf_QueryInterface(
 277     LPRPCCHANNELBUFFER iface,REFIID riid,LPVOID *ppv
 278 ) {
 279     *ppv = NULL;
 280     if (IsEqualIID(riid,&IID_IRpcChannelBuffer) || IsEqualIID(riid,&IID_IUnknown)) {
 281         *ppv = (LPVOID)iface;
 282         IUnknown_AddRef(iface);
 283         return S_OK;
 284     }
 285     return E_NOINTERFACE;
 286 }
 287
 288 static ULONG WINAPI
 289 PipeBuf_AddRef(LPRPCCHANNELBUFFER iface) {
 290     PipeBuf *This = (PipeBuf *)iface;
 291     return InterlockedIncrement(&This->ref);
 292 }
 293
 294 static ULONG WINAPI
 295 PipeBuf_Release(LPRPCCHANNELBUFFER iface) {
 296     PipeBuf *This = (PipeBuf *)iface;
 297     ULONG ref;
 298     wine_rpc_disconnect_header header;
 299     HANDLE pipe;
 300     DWORD reqtype = REQTYPE_DISCONNECT;
 301
 302     ref = InterlockedDecrement(&This->ref);
 303     if (ref)
 304         return ref;
 305
 306     FIXME("Free all stuff\n");
 307
 308     memcpy(&header.mid, &This->mid, sizeof(wine_marshal_id));
 309
 310     pipe = PIPE_FindByMID(&This->mid);
 311
 312     write_pipe(pipe, &reqtype, sizeof(reqtype));
 313     write_pipe(pipe, &header, sizeof(wine_rpc_disconnect_header));
 314
 315     TRACE("written disconnect packet\n");
 316
 317     HeapFree(GetProcessHeap(),0,This);
 318     return 0;
 319 }
 320
 321 static HRESULT WINAPI
 322 PipeBuf_GetBuffer(
 323     LPRPCCHANNELBUFFER iface,RPCOLEMESSAGE* msg,REFIID riid
 324 ) {
 325     /*PipeBuf *This = (PipeBuf *)iface;*/
 326
 327     TRACE("(%p,%s)\n",msg,debugstr_guid(riid));
 328     /* probably reuses IID in real. */
 329     if (msg->cbBuffer && (msg->Buffer == NULL))
 330         msg->Buffer = HeapAlloc(GetProcessHeap(),0,msg->cbBuffer);
 331     return S_OK;
 332 }
 333
 334 static HRESULT
 335 COM_InvokeAndRpcSend(wine_rpc_request *req) {
 336     IRpcStubBuffer      *stub;
 337     RPCOLEMESSAGE       msg;
 338     HRESULT             hres;
 339     DWORD               reqtype;
 340
 341     hres = MARSHAL_Find_Stub_Buffer(&(req->reqh.mid),&stub);
 342     if (hres) {
 343         ERR("Stub not found?\n");
 344         return hres;
 345     }
 346     msg.Buffer          = req->Buffer;
 347     msg.iMethod         = req->reqh.iMethod;
 348     msg.cbBuffer        = req->reqh.cbBuffer;
 349     msg.dataRepresentation = NDR_LOCAL_DATA_REPRESENTATION;
 350     req->state          = REQSTATE_INVOKING;
 351     req->resph.retval   = IRpcStubBuffer_Invoke(stub,&msg,NULL);
 352     IUnknown_Release(stub);
 353     req->Buffer         = msg.Buffer;
 354     req->resph.cbBuffer = msg.cbBuffer;
 355     reqtype             = REQTYPE_RESPONSE;
 356     hres = write_pipe(req->hPipe,&reqtype,sizeof(reqtype));
 357     if (hres) return hres;
 358     hres = write_pipe(req->hPipe,&(req->resph),sizeof(req->resph));
 359     if (hres) return hres;
 360     hres = write_pipe(req->hPipe,req->Buffer,req->resph.cbBuffer);
 361     if (hres) return hres;
 362     req->state = REQSTATE_DONE;
 363     drs("invoke");
 364     return S_OK;
 365 }
 366
 367 static HRESULT COM_RpcReceive(wine_pipe *xpipe);
 368
 369 static HRESULT
 370 RPC_QueueRequestAndWait(wine_rpc_request *req) {
 371     int                 i;
 372     wine_rpc_request    *xreq;
 373     HRESULT             hres;
 374     DWORD               reqtype;
 375     wine_pipe           *xpipe = PIPE_GetFromMID(&(req->reqh.mid));
 376
 377     if (!xpipe) {
 378         FIXME("no pipe found.\n");
 379         return E_POINTER;
 380     }
 381     if (GetCurrentProcessId() == req->reqh.mid.processid) {
 382         ERR("In current process?\n");
 383         return E_FAIL;
 384     }
 385     req->hPipe = xpipe->hPipe;
 386     req->state = REQSTATE_REQ_WAITING_FOR_REPLY;
 387     reqtype = REQTYPE_REQUEST;
 388     hres = write_pipe(req->hPipe,&reqtype,sizeof(reqtype));
 389     if (hres) return hres;
 390     hres = write_pipe(req->hPipe,&(req->reqh),sizeof(req->reqh));
 391     if (hres) return hres;
 392     hres = write_pipe(req->hPipe,req->Buffer,req->reqh.cbBuffer);
 393     if (hres) return hres;
 394
 395     /* This loop is about allowing re-entrancy. While waiting for the
 396      * response to one RPC we may receive a request starting another. */
 397     while (!hres) {
 398         hres = COM_RpcReceive(xpipe);
 399         if (hres) break;
 400
 401         for (i=0;i<nrofreqs;i++) {
 402             xreq = reqs[i];
 403             if ((xreq->state==REQSTATE_REQ_GOT) && (xreq->hPipe==req->hPipe)) {
 404                 hres = COM_InvokeAndRpcSend(xreq);
 405                 if (hres) break;
 406             }
 407         }
 408         if (req->state == REQSTATE_RESP_GOT)
 409             return S_OK;
 410     }
 411     if (FAILED(hres))
 412         WARN("-- 0x%08lx\n", hres);
 413     return hres;
 414 }
 415
 416 static HRESULT WINAPI
 417 PipeBuf_SendReceive(
 418     LPRPCCHANNELBUFFER iface,RPCOLEMESSAGE* msg,ULONG *status
 419 ) {
 420     PipeBuf *This = (PipeBuf *)iface;
 421     wine_rpc_request    *req;
 422     HRESULT             hres;
 423
 424     TRACE("()\n");
 425
 426     if (This->mid.processid == GetCurrentProcessId()) {
 427         ERR("Need to call directly!\n");
 428         return E_FAIL;
 429     }
 430
 431     hres = RPC_GetRequest(&req);
 432     if (hres) return hres;
 433     req->reqh.iMethod   = msg->iMethod;
 434     req->reqh.cbBuffer  = msg->cbBuffer;
 435     memcpy(&(req->reqh.mid),&(This->mid),sizeof(This->mid));
 436     req->Buffer = msg->Buffer;
 437     hres = RPC_QueueRequestAndWait(req);
 438     if (hres) {
 439         RPC_FreeRequest(req);
 440         return hres;
 441     }
 442     msg->cbBuffer       = req->resph.cbBuffer;
 443     msg->Buffer         = req->Buffer;
 444     *status             = req->resph.retval;
 445     RPC_FreeRequest(req);
 446     return S_OK;
 447 }
 448
 449
 450 static HRESULT WINAPI
 451 PipeBuf_FreeBuffer(LPRPCCHANNELBUFFER iface,RPCOLEMESSAGE* msg) {
 452     FIXME("(%p), stub!\n",msg);
 453     return E_FAIL;
 454 }
 455
 456 static HRESULT WINAPI
 457 PipeBuf_GetDestCtx(
 458     LPRPCCHANNELBUFFER iface,DWORD* pdwDestContext,void** ppvDestContext
 459 ) {
 460     FIXME("(%p,%p), stub!\n",pdwDestContext,ppvDestContext);
 461     return E_FAIL;
 462 }
 463
 464 static HRESULT WINAPI
 465 PipeBuf_IsConnected(LPRPCCHANNELBUFFER iface) {
 466     FIXME("(), stub!\n");
 467     return S_OK;
 468 }
 469
 470 static IRpcChannelBufferVtbl pipebufvt = {
 471     PipeBuf_QueryInterface,
 472     PipeBuf_AddRef,
 473     PipeBuf_Release,
 474     PipeBuf_GetBuffer,
 475     PipeBuf_SendReceive,
 476     PipeBuf_FreeBuffer,
 477     PipeBuf_GetDestCtx,
 478     PipeBuf_IsConnected
 479 };
 480
 481 HRESULT
 482 PIPE_GetNewPipeBuf(wine_marshal_id *mid, IRpcChannelBuffer **pipebuf) {
 483   wine_marshal_id       ourid;
 484   DWORD                 res;
 485   HANDLE                hPipe;
 486   HRESULT               hres;
 487   PipeBuf               *pbuf;
 488
 489   hPipe = PIPE_FindByMID(mid);
 490   if (hPipe == INVALID_HANDLE_VALUE) {
 491       char                      pipefn[200];
 492       sprintf(pipefn,OLESTUBMGR"_%08lx",mid->processid);
 493       hPipe = CreateFileA(
 494               pipefn,
 495               GENERIC_READ|GENERIC_WRITE,
 496               0,
 497               NULL,
 498               OPEN_EXISTING,
 499               0,
 500               0
 501       );
 502       if (hPipe == INVALID_HANDLE_VALUE) {
 503           FIXME("Could not open named pipe %s, le is %lx\n",pipefn,GetLastError());
 504           return E_FAIL;
 505       }
 506       hres = PIPE_RegisterPipe(mid, hPipe, FALSE);
 507       if (hres) return hres;
 508       memset(&ourid,0,sizeof(ourid));
 509       ourid.processid = GetCurrentProcessId();
 510       if (!WriteFile(hPipe,&ourid,sizeof(ourid),&res,NULL)||(res!=sizeof(ourid))) {
 511           ERR("Failed writing startup mid!\n");
 512           return E_FAIL;
 513       }
 514   }
 515   pbuf = (PipeBuf*)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(PipeBuf));
 516   pbuf->lpVtbl  = &pipebufvt;
 517   pbuf->ref     = 1;
 518   memcpy(&(pbuf->mid),mid,sizeof(*mid));
 519   *pipebuf = (IRpcChannelBuffer*)pbuf;
 520   return S_OK;
 521 }
 522
 523 static HRESULT
 524 create_server(REFCLSID rclsid) {
 525   static const WCHAR embedding[] = { ' ', '-','E','m','b','e','d','d','i','n','g',0 };
 526   HKEY          key;
 527   char          buf[200];
 528   HRESULT       hres = E_UNEXPECTED;
 529   char          xclsid[80];
 530   WCHAR        exe[MAX_PATH+1];
 531   DWORD        exelen = sizeof(exe);
 532   WCHAR         command[MAX_PATH+sizeof(embedding)/sizeof(WCHAR)];
 533   STARTUPINFOW  sinfo;
 534   PROCESS_INFORMATION   pinfo;
 535
 536   WINE_StringFromCLSID((LPCLSID)rclsid,xclsid);
 537
 538   sprintf(buf,"CLSID\\%s\\LocalServer32",xclsid);
 539   hres = RegOpenKeyExA(HKEY_CLASSES_ROOT, buf, 0, KEY_READ, &key);
 540
 541   if (hres != ERROR_SUCCESS) {
 542       WARN("CLSID %s not registered as LocalServer32\n", xclsid);
 543       return REGDB_E_READREGDB; /* Probably */
 544   }
 545
 546   memset(exe,0,sizeof(exe));
 547   hres= RegQueryValueExW(key, NULL, NULL, NULL, (LPBYTE)exe, &exelen);
 548   RegCloseKey(key);
 549   if (hres) {
 550       WARN("No default value for LocalServer32 key\n");
 551       return REGDB_E_CLASSNOTREG; /* FIXME: check retval */
 552   }
 553
 554   memset(&sinfo,0,sizeof(sinfo));
 555   sinfo.cb = sizeof(sinfo);
 556
 557   /* EXE servers are started with the -Embedding switch. MSDN also claims /Embedding is used,
 558      9x does -Embedding, perhaps an 9x/NT difference?  */
 559
 560   strcpyW(command, exe);
 561   strcatW(command, embedding);
 562
 563   TRACE("activating local server '%s' for %s\n", debugstr_w(command), xclsid);
 564
 565   if (!CreateProcessW(exe, command, NULL, NULL, FALSE, 0, NULL, NULL, &sinfo, &pinfo)) {
 566       WARN("failed to run local server %s\n", debugstr_w(exe));
 567       return E_FAIL;
 568   }
 569
 570   return S_OK;
 571 }
 572 /* http://msdn.microsoft.com/library/en-us/dnmsj99/html/com0199.asp, Figure 4 */
 573 HRESULT create_marshalled_proxy(REFCLSID rclsid, REFIID iid, LPVOID *ppv) {
 574   HRESULT       hres;
 575   HANDLE        hPipe;
 576   char          pipefn[200];
 577   DWORD         res,bufferlen;
 578   char          marshalbuffer[200];
 579   IStream       *pStm;
 580   LARGE_INTEGER seekto;
 581   ULARGE_INTEGER newpos;
 582   int           tries = 0;
 583 #define MAXTRIES 10000
 584
 585   TRACE("rclsid=%s, iid=%s\n", debugstr_guid(rclsid), debugstr_guid(iid));
 586
 587   strcpy(pipefn,PIPEPREF);
 588   WINE_StringFromCLSID(rclsid,pipefn+strlen(PIPEPREF));
 589
 590   while (tries++<MAXTRIES) {
 591       WaitNamedPipeA( pipefn, NMPWAIT_WAIT_FOREVER );
 592       hPipe     = CreateFileA(
 593               pipefn,
 594               GENERIC_READ|GENERIC_WRITE,
 595               0,
 596               NULL,
 597               OPEN_EXISTING,
 598               0,
 599               0
 600       );
 601       if (hPipe == INVALID_HANDLE_VALUE) {
 602           if (tries == 1) {
 603               if ((hres = create_server(rclsid)))
 604                   return hres;
 605               Sleep(1000);
 606           } else {
 607               WARN("Could not open named pipe to broker %s, le is %lx\n",pipefn,GetLastError());
 608               Sleep(1000);
 609           }
 610           continue;
 611       }
 612       bufferlen = 0;
 613       if (!ReadFile(hPipe,marshalbuffer,sizeof(marshalbuffer),&bufferlen,NULL)) {
 614           FIXME("Failed to read marshal id from classfactory of %s.\n",debugstr_guid(rclsid));
 615           Sleep(1000);
 616           continue;
 617       }
 618       CloseHandle(hPipe);
 619       break;
 620   }
 621   if (tries>=MAXTRIES)
 622       return E_NOINTERFACE;
 623   hres = CreateStreamOnHGlobal(0,TRUE,&pStm);
 624   if (hres) return hres;
 625   hres = IStream_Write(pStm,marshalbuffer,bufferlen,&res);
 626   if (hres) goto out;
 627   seekto.u.LowPart = 0;seekto.u.HighPart = 0;
 628   hres = IStream_Seek(pStm,seekto,SEEK_SET,&newpos);
 629   hres = CoUnmarshalInterface(pStm,&IID_IClassFactory,ppv);
 630 out:
 631   IStream_Release(pStm);
 632   return hres;
 633 }
 634
 635
 636 static void WINAPI
 637 PIPE_StartRequestThread(HANDLE xhPipe) {
 638     wine_marshal_id     remoteid;
 639     HRESULT             hres;
 640
 641     hres = read_pipe(xhPipe,&remoteid,sizeof(remoteid));
 642     if (hres) {
 643         ERR("Failed to read remote mid!\n");
 644         return;
 645     }
 646     PIPE_RegisterPipe(&remoteid,xhPipe, TRUE);
 647 }
 648
 649 static HRESULT
 650 COM_RpcReceive(wine_pipe *xpipe) {
 651     DWORD       reqtype;
 652     HRESULT     hres = S_OK;
 653     HANDLE      xhPipe = xpipe->hPipe;
 654
 655     /*FIXME("%lx %d reading reqtype\n",GetCurrentProcessId(),xhPipe);*/
 656     hres = read_pipe(xhPipe,&reqtype,sizeof(reqtype));
 657     if (hres) goto end;
 658     EnterCriticalSection(&(xpipe->crit));
 659     /*FIXME("%lx got reqtype %ld\n",GetCurrentProcessId(),reqtype);*/
 660
 661     if (reqtype == REQTYPE_DISCONNECT) { /* only received by servers */
 662         wine_rpc_disconnect_header header;
 663         IRpcStubBuffer *stub;
 664         ULONG ret;
 665
 666         hres = read_pipe(xhPipe, &header, sizeof(header));
 667         if (hres) {
 668             ERR("could not read disconnect header\n");
 669             goto end;
 670         }
 671
 672         TRACE("read disconnect header\n");
 673
 674         hres = MARSHAL_Find_Stub_Buffer(&header.mid, &stub);
 675         if (hres) {
 676             ERR("could not locate stub to disconnect, mid.objectid=%p\n", (void*)header.mid.objectid);
 677             goto end;
 678         }
 679
 680
 681         /* release reference added by MARSHAL_Find_Stub_Buffer call */
 682         IRpcStubBuffer_Release(stub);
 683         /* release it for real */
 684         ret = IRpcStubBuffer_Release(stub);
 685         /* FIXME: race */
 686         if (ret == 0)
 687             MARSHAL_Invalidate_Stub_From_MID(&header.mid);
 688         goto end;
 689     } else if (reqtype == REQTYPE_REQUEST) {
 690         wine_rpc_request        *xreq;
 691         RPC_GetRequest(&xreq);
 692         xreq->hPipe = xhPipe;
 693         hres = read_pipe(xhPipe,&(xreq->reqh),sizeof(xreq->reqh));
 694         if (hres) goto end;
 695         xreq->resph.reqid = xreq->reqh.reqid;
 696         xreq->Buffer = HeapAlloc(GetProcessHeap(),0, xreq->reqh.cbBuffer);
 697         hres = read_pipe(xhPipe,xreq->Buffer,xreq->reqh.cbBuffer);
 698         if (hres) goto end;
 699         xreq->state = REQSTATE_REQ_GOT;
 700         goto end;
 701     } else if (reqtype == REQTYPE_RESPONSE) {
 702         wine_rpc_response_header        resph;
 703         int i;
 704
 705         hres = read_pipe(xhPipe,&resph,sizeof(resph));
 706         if (hres) goto end;
 707         for (i=nrofreqs;i--;) {
 708             wine_rpc_request *xreq = reqs[i];
 709             if (xreq->state != REQSTATE_REQ_WAITING_FOR_REPLY)
 710                 continue;
 711             if (xreq->reqh.reqid == resph.reqid) {
 712                 memcpy(&(xreq->resph),&resph,sizeof(resph));
 713
 714                 if (xreq->Buffer)
 715                     xreq->Buffer = HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,xreq->Buffer,xreq->resph.cbBuffer);
 716                 else
 717                     xreq->Buffer = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,xreq->resph.cbBuffer);
 718
 719                 hres = read_pipe(xhPipe,xreq->Buffer,xreq->resph.cbBuffer);
 720                 if (hres) goto end;
 721                 xreq->state = REQSTATE_RESP_GOT;
 722                 /*PulseEvent(hRpcChanged);*/
 723                 goto end;
 724             }
 725         }
 726         ERR("Did not find request for id %lx\n",resph.reqid);
 727         hres = S_OK;
 728         goto end;
 729     }
 730     ERR("Unknown reqtype %ld\n",reqtype);
 731     hres = E_FAIL;
 732 end:
 733     LeaveCriticalSection(&(xpipe->crit));
 734     return hres;
 735 }
 736
 737 static DWORD WINAPI
 738 _StubReaderThread(LPVOID param) {
 739     wine_pipe           *xpipe = (wine_pipe*)param;
 740     HANDLE              xhPipe = xpipe->hPipe;
 741     HRESULT             hres = S_OK;
 742
 743     TRACE("STUB reader thread %lx\n",GetCurrentProcessId());
 744     while (!hres) {
 745         int i;
 746         hres = COM_RpcReceive(xpipe);
 747         if (hres) break;
 748
 749         for (i=nrofreqs;i--;) {
 750             wine_rpc_request *xreq = reqs[i];
 751             if ((xreq->state == REQSTATE_REQ_GOT) && (xreq->hPipe == xhPipe)) {
 752                 hres = COM_InvokeAndRpcSend(xreq);
 753                 if (!hres) break;
 754             }
 755         }
 756     }
 757     FIXME("Failed with hres %lx\n",hres);
 758     CloseHandle(xhPipe);
 759     return 0;
 760 }
 761
 762 static DWORD WINAPI
 763 _StubMgrThread(LPVOID param) {
 764     char                pipefn[200];
 765     HANDLE              listenPipe;
 766
 767     sprintf(pipefn,OLESTUBMGR"_%08lx",GetCurrentProcessId());
 768     TRACE("Stub Manager Thread starting on (%s)\n",pipefn);
 769
 770     while (1) {
 771         listenPipe = CreateNamedPipeA(
 772             pipefn,
 773             PIPE_ACCESS_DUPLEX,
 774             PIPE_TYPE_BYTE|PIPE_WAIT,
 775             PIPE_UNLIMITED_INSTANCES,
 776             4096,
 777             4096,
 778             NMPWAIT_USE_DEFAULT_WAIT,
 779             NULL
 780         );
 781         if (listenPipe == INVALID_HANDLE_VALUE) {
 782             FIXME("pipe creation failed for %s, le is %lx\n",pipefn,GetLastError());
 783             return 1; /* permanent failure, so quit stubmgr thread */
 784         }
 785         if (!ConnectNamedPipe(listenPipe,NULL)) {
 786             ERR("Failure during ConnectNamedPipe %lx!\n",GetLastError());
 787             CloseHandle(listenPipe);
 788             continue;
 789         }
 790         PIPE_StartRequestThread(listenPipe);
 791     }
 792     return 0;
 793 }
 794
 795 void
 796 STUBMGR_Start() {
 797   static BOOL stubMgrRunning = FALSE;
 798   DWORD tid;
 799
 800   if (!stubMgrRunning) {
 801       stubMgrRunning = TRUE;
 802       CreateThread(NULL,0,_StubMgrThread,NULL,0,&tid);
 803       Sleep(2000); /* actually we just try opening the pipe until it succeeds */
 804   }
 805 }