dll/win32/rpcrt4/cstub.c

   1 /*
   2  * COM stub (CStdStubBuffer) implementation
   3  *
   4  * Copyright 2001 Ove Kåven, TransGaming Technologies
   5  * Copyright 2009 Alexandre Julliard
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "precomp.h"
  23
  24 WINE_DEFAULT_DEBUG_CHANNEL(ole);
  25
  26 #define STUB_HEADER(This) (((const CInterfaceStubHeader*)((This)->lpVtbl))[-1])
  27
  28 static LONG WINAPI stub_filter(EXCEPTION_POINTERS *eptr)
  29 {
  30     if (eptr->ExceptionRecord->ExceptionFlags & EXCEPTION_NONCONTINUABLE)
  31         return EXCEPTION_CONTINUE_SEARCH;
  32     return EXCEPTION_EXECUTE_HANDLER;
  33 }
  34
  35 typedef struct
  36 {
  37     IUnknownVtbl *base_obj;
  38     IRpcStubBuffer *base_stub;
  39     CStdStubBuffer stub_buffer;
  40 } cstdstubbuffer_delegating_t;
  41
  42 static inline cstdstubbuffer_delegating_t *impl_from_delegating( IRpcStubBuffer *iface )
  43 {
  44     return (cstdstubbuffer_delegating_t*)((char *)iface - FIELD_OFFSET(cstdstubbuffer_delegating_t, stub_buffer));
  45 }
  46
  47 HRESULT CStdStubBuffer_Construct(REFIID riid,
  48                                  LPUNKNOWN pUnkServer,
  49                                  PCInterfaceName name,
  50                                  CInterfaceStubVtbl *vtbl,
  51                                  LPPSFACTORYBUFFER pPSFactory,
  52                                  LPRPCSTUBBUFFER *ppStub)
  53 {
  54   CStdStubBuffer *This;
  55   IUnknown *pvServer;
  56   HRESULT r;
  57   TRACE("(%p,%p,%p,%p) %s\n", pUnkServer, vtbl, pPSFactory, ppStub, name);
  58   TRACE("iid=%s\n", debugstr_guid(vtbl->header.piid));
  59   TRACE("vtbl=%p\n", &vtbl->Vtbl);
  60
  61   if (!IsEqualGUID(vtbl->header.piid, riid)) {
  62     ERR("IID mismatch during stub creation\n");
  63     return RPC_E_UNEXPECTED;
  64   }
  65
  66   r = IUnknown_QueryInterface(pUnkServer, riid, (void**)&pvServer);
  67   if(FAILED(r))
  68     return r;
  69
  70   This = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(CStdStubBuffer));
  71   if (!This) {
  72     IUnknown_Release(pvServer);
  73     return E_OUTOFMEMORY;
  74   }
  75
  76   This->lpVtbl = &vtbl->Vtbl;
  77   This->RefCount = 1;
  78   This->pvServerObject = pvServer;
  79   This->pPSFactory = pPSFactory;
  80   *ppStub = (LPRPCSTUBBUFFER)This;
  81
  82   IPSFactoryBuffer_AddRef(pPSFactory);
  83   return S_OK;
  84 }
  85
  86 static CRITICAL_SECTION delegating_vtbl_section;
  87 static CRITICAL_SECTION_DEBUG critsect_debug =
  88 {
  89     0, 0, &delegating_vtbl_section,
  90     { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
  91       0, 0, { (DWORD_PTR)(__FILE__ ": delegating_vtbl_section") }
  92 };
  93 static CRITICAL_SECTION delegating_vtbl_section = { &critsect_debug, -1, 0, 0, 0, 0 };
  94
  95 typedef struct
  96 {
  97     DWORD ref;
  98     DWORD size;
  99     IUnknownVtbl vtbl;
 100     /* remaining entries in vtbl */
 101 } ref_counted_vtbl;
 102
 103 static ref_counted_vtbl *current_vtbl;
 104
 105
 106 static HRESULT WINAPI delegating_QueryInterface(IUnknown *pUnk, REFIID iid, void **ppv)
 107 {
 108     *ppv = pUnk;
 109     return S_OK;
 110 }
 111
 112 static ULONG WINAPI delegating_AddRef(IUnknown *pUnk)
 113 {
 114     return 1;
 115 }
 116
 117 static ULONG WINAPI delegating_Release(IUnknown *pUnk)
 118 {
 119     return 1;
 120 }
 121
 122 /* The idea here is to replace the first param on the stack
 123    ie. This (which will point to cstdstubbuffer_delegating_t)
 124    with This->stub_buffer.pvServerObject and then jump to the
 125    relevant offset in This->stub_buffer.pvServerObject's vtbl.
 126 */
 127 #ifdef __i386__
 128
 129 #include "pshpack1.h"
 130 typedef struct {
 131     BYTE mov1[4];    /* mov 0x4(%esp),%eax     8b 44 24 04 */
 132     BYTE mov2[3];    /* mov 0x10(%eax),%eax    8b 40 10 */
 133     BYTE mov3[4];    /* mov %eax,0x4(%esp)     89 44 24 04 */
 134     BYTE mov4[2];    /* mov (%eax),%eax        8b 00 */
 135     BYTE mov5[2];    /* jmp *offset(%eax)      ff a0 offset */
 136     DWORD offset;
 137     BYTE pad[1];     /* nop                    90 */
 138 } vtbl_method_t;
 139 #include "poppack.h"
 140
 141 static const BYTE opcodes[20] = { 0x8b, 0x44, 0x24, 0x04, 0x8b, 0x40, 0x10, 0x89, 0x44, 0x24, 0x04,
 142                                   0x8b, 0x00, 0xff, 0xa0, 0, 0, 0, 0, 0x90 };
 143
 144 #elif defined(__x86_64__)
 145
 146 #include "pshpack1.h"
 147 typedef struct
 148 {
 149     BYTE mov1[4];    /* movq 0x20(%rcx),%rcx   48 8b 49 20 */
 150     BYTE mov2[3];    /* movq (%rcx),%rax       48 8b 01 */
 151     BYTE jmp[2];     /* jmp *offset(%rax)      ff a0 offset */
 152     DWORD offset;
 153     BYTE pad[3];     /* lea 0x0(%rsi),%rsi     48 8d 36 */
 154 } vtbl_method_t;
 155 #include "poppack.h"
 156
 157 static const BYTE opcodes[16] = { 0x48, 0x8b, 0x49, 0x20, 0x48, 0x8b, 0x01,
 158                                   0xff, 0xa0, 0, 0, 0, 0, 0x48, 0x8d, 0x36 };
 159 #else
 160
 161 #warning You must implement delegated proxies/stubs for your CPU
 162 typedef struct
 163 {
 164     DWORD offset;
 165 } vtbl_method_t;
 166 static const BYTE opcodes[1];
 167
 168 #endif
 169
 170 #define BLOCK_SIZE 1024
 171 #define MAX_BLOCKS 64  /* 64k methods should be enough for anybody */
 172
 173 static const vtbl_method_t *method_blocks[MAX_BLOCKS];
 174
 175 static const vtbl_method_t *allocate_block( unsigned int num )
 176 {
 177     unsigned int i;
 178     vtbl_method_t *prev, *block;
 179
 180     block = VirtualAlloc( NULL, BLOCK_SIZE * sizeof(*block),
 181                           MEM_COMMIT | MEM_RESERVE, PAGE_EXECUTE_READWRITE );
 182     if (!block) return NULL;
 183
 184     for (i = 0; i < BLOCK_SIZE; i++)
 185     {
 186         memcpy( &block[i], opcodes, sizeof(opcodes) );
 187         block[i].offset = (BLOCK_SIZE * num + i + 3) * sizeof(void *);
 188     }
 189     VirtualProtect( block, BLOCK_SIZE * sizeof(*block), PAGE_EXECUTE_READ, NULL );
 190     prev = InterlockedCompareExchangePointer( (void **)&method_blocks[num], block, NULL );
 191     if (prev) /* someone beat us to it */
 192     {
 193         VirtualFree( block, 0, MEM_RELEASE );
 194         block = prev;
 195     }
 196     return block;
 197 }
 198
 199 static BOOL fill_delegated_stub_table(IUnknownVtbl *vtbl, DWORD num)
 200 {
 201     const void **entry = (const void **)(vtbl + 1);
 202     DWORD i, j;
 203
 204     if (num - 3 > BLOCK_SIZE * MAX_BLOCKS)
 205     {
 206         FIXME( "%u methods not supported\n", num );
 207         return FALSE;
 208     }
 209     vtbl->QueryInterface = delegating_QueryInterface;
 210     vtbl->AddRef = delegating_AddRef;
 211     vtbl->Release = delegating_Release;
 212     for (i = 0; i < (num - 3 + BLOCK_SIZE - 1) / BLOCK_SIZE; i++)
 213     {
 214         const vtbl_method_t *block = method_blocks[i];
 215         if (!block && !(block = allocate_block( i ))) return FALSE;
 216         for (j = 0; j < BLOCK_SIZE && j < num - 3 - i * BLOCK_SIZE; j++) *entry++ = &block[j];
 217     }
 218     return TRUE;
 219 }
 220
 221 BOOL fill_delegated_proxy_table(IUnknownVtbl *vtbl, DWORD num)
 222 {
 223     const void **entry = (const void **)(vtbl + 1);
 224     DWORD i, j;
 225
 226     if (num - 3 > BLOCK_SIZE * MAX_BLOCKS)
 227     {
 228         FIXME( "%u methods not supported\n", num );
 229         return FALSE;
 230     }
 231     vtbl->QueryInterface = IUnknown_QueryInterface_Proxy;
 232     vtbl->AddRef = IUnknown_AddRef_Proxy;
 233     vtbl->Release = IUnknown_Release_Proxy;
 234     for (i = 0; i < (num - 3 + BLOCK_SIZE - 1) / BLOCK_SIZE; i++)
 235     {
 236         const vtbl_method_t *block = method_blocks[i];
 237         if (!block && !(block = allocate_block( i ))) return FALSE;
 238         for (j = 0; j < BLOCK_SIZE && j < num - 3 - i * BLOCK_SIZE; j++, entry++)
 239             if (!*entry) *entry = &block[j];
 240     }
 241     return TRUE;
 242 }
 243
 244 static IUnknownVtbl *get_delegating_vtbl(DWORD num_methods)
 245 {
 246     IUnknownVtbl *ret;
 247
 248     if (num_methods < 256) num_methods = 256;  /* avoid frequent reallocations */
 249
 250     EnterCriticalSection(&delegating_vtbl_section);
 251
 252     if(!current_vtbl || num_methods > current_vtbl->size)
 253     {
 254         ref_counted_vtbl *table = HeapAlloc(GetProcessHeap(), 0,
 255                                             FIELD_OFFSET(ref_counted_vtbl, vtbl) + num_methods * sizeof(void*));
 256         if (!table)
 257         {
 258             LeaveCriticalSection(&delegating_vtbl_section);
 259             return NULL;
 260         }
 261
 262         table->ref = 0;
 263         table->size = num_methods;
 264         fill_delegated_stub_table(&table->vtbl, num_methods);
 265
 266         if (current_vtbl && current_vtbl->ref == 0)
 267         {
 268             TRACE("freeing old table\n");
 269             HeapFree(GetProcessHeap(), 0, current_vtbl);
 270         }
 271         current_vtbl = table;
 272     }
 273
 274     current_vtbl->ref++;
 275     ret = &current_vtbl->vtbl;
 276     LeaveCriticalSection(&delegating_vtbl_section);
 277     return ret;
 278 }
 279
 280 static void release_delegating_vtbl(IUnknownVtbl *vtbl)
 281 {
 282     ref_counted_vtbl *table = (ref_counted_vtbl*)((DWORD *)vtbl - 1);
 283
 284     EnterCriticalSection(&delegating_vtbl_section);
 285     table->ref--;
 286     TRACE("ref now %d\n", table->ref);
 287     if(table->ref == 0 && table != current_vtbl)
 288     {
 289         TRACE("... and we're not current so free'ing\n");
 290         HeapFree(GetProcessHeap(), 0, table);
 291     }
 292     LeaveCriticalSection(&delegating_vtbl_section);
 293 }
 294
 295 HRESULT CStdStubBuffer_Delegating_Construct(REFIID riid,
 296                                             LPUNKNOWN pUnkServer,
 297                                             PCInterfaceName name,
 298                                             CInterfaceStubVtbl *vtbl,
 299                                             REFIID delegating_iid,
 300                                             LPPSFACTORYBUFFER pPSFactory,
 301                                             LPRPCSTUBBUFFER *ppStub)
 302 {
 303     cstdstubbuffer_delegating_t *This;
 304     IUnknown *pvServer;
 305     HRESULT r;
 306
 307     TRACE("(%p,%p,%p,%p) %s\n", pUnkServer, vtbl, pPSFactory, ppStub, name);
 308     TRACE("iid=%s delegating to %s\n", debugstr_guid(vtbl->header.piid), debugstr_guid(delegating_iid));
 309     TRACE("vtbl=%p\n", &vtbl->Vtbl);
 310
 311     if (!IsEqualGUID(vtbl->header.piid, riid))
 312     {
 313         ERR("IID mismatch during stub creation\n");
 314         return RPC_E_UNEXPECTED;
 315     }
 316
 317     r = IUnknown_QueryInterface(pUnkServer, riid, (void**)&pvServer);
 318     if(FAILED(r)) return r;
 319
 320     This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*This));
 321     if (!This)
 322     {
 323         IUnknown_Release(pvServer);
 324         return E_OUTOFMEMORY;
 325     }
 326
 327     This->base_obj = get_delegating_vtbl( vtbl->header.DispatchTableCount );
 328     r = create_stub(delegating_iid, (IUnknown*)&This->base_obj, &This->base_stub);
 329     if(FAILED(r))
 330     {
 331         release_delegating_vtbl(This->base_obj);
 332         HeapFree(GetProcessHeap(), 0, This);
 333         IUnknown_Release(pvServer);
 334         return r;
 335     }
 336
 337     This->stub_buffer.lpVtbl = &vtbl->Vtbl;
 338     This->stub_buffer.RefCount = 1;
 339     This->stub_buffer.pvServerObject = pvServer;
 340     This->stub_buffer.pPSFactory = pPSFactory;
 341     *ppStub = (LPRPCSTUBBUFFER)&This->stub_buffer;
 342
 343     IPSFactoryBuffer_AddRef(pPSFactory);
 344     return S_OK;
 345 }
 346
 347 HRESULT WINAPI CStdStubBuffer_QueryInterface(LPRPCSTUBBUFFER iface,
 348                                             REFIID riid,
 349                                             LPVOID *obj)
 350 {
 351   CStdStubBuffer *This = (CStdStubBuffer *)iface;
 352   TRACE("(%p)->QueryInterface(%s,%p)\n",This,debugstr_guid(riid),obj);
 353
 354   if (IsEqualIID(&IID_IUnknown, riid) ||
 355       IsEqualIID(&IID_IRpcStubBuffer, riid))
 356   {
 357     IRpcStubBuffer_AddRef(iface);
 358     *obj = iface;
 359     return S_OK;
 360   }
 361   *obj = NULL;
 362   return E_NOINTERFACE;
 363 }
 364
 365 ULONG WINAPI CStdStubBuffer_AddRef(LPRPCSTUBBUFFER iface)
 366 {
 367   CStdStubBuffer *This = (CStdStubBuffer *)iface;
 368   TRACE("(%p)->AddRef()\n",This);
 369   return InterlockedIncrement(&This->RefCount);
 370 }
 371
 372 ULONG WINAPI NdrCStdStubBuffer_Release(LPRPCSTUBBUFFER iface,
 373                                       LPPSFACTORYBUFFER pPSF)
 374 {
 375   CStdStubBuffer *This = (CStdStubBuffer *)iface;
 376   ULONG refs;
 377
 378   TRACE("(%p)->Release()\n",This);
 379
 380   refs = InterlockedDecrement(&This->RefCount);
 381   if (!refs)
 382   {
 383     /* test_Release shows that native doesn't call Disconnect here.
 384        We'll leave it in for the time being. */
 385     IRpcStubBuffer_Disconnect(iface);
 386
 387     IPSFactoryBuffer_Release(pPSF);
 388     HeapFree(GetProcessHeap(),0,This);
 389   }
 390   return refs;
 391 }
 392
 393 ULONG WINAPI NdrCStdStubBuffer2_Release(LPRPCSTUBBUFFER iface,
 394                                         LPPSFACTORYBUFFER pPSF)
 395 {
 396     cstdstubbuffer_delegating_t *This = impl_from_delegating( iface );
 397     ULONG refs;
 398
 399     TRACE("(%p)->Release()\n", This);
 400
 401     refs = InterlockedDecrement(&This->stub_buffer.RefCount);
 402     if (!refs)
 403     {
 404         /* Just like NdrCStdStubBuffer_Release, we shouldn't call
 405            Disconnect here */
 406         IRpcStubBuffer_Disconnect((IRpcStubBuffer *)&This->stub_buffer);
 407
 408         IRpcStubBuffer_Release(This->base_stub);
 409         release_delegating_vtbl(This->base_obj);
 410
 411         IPSFactoryBuffer_Release(pPSF);
 412         HeapFree(GetProcessHeap(), 0, This);
 413     }
 414
 415     return refs;
 416 }
 417
 418 HRESULT WINAPI CStdStubBuffer_Connect(LPRPCSTUBBUFFER iface,
 419                                      LPUNKNOWN lpUnkServer)
 420 {
 421     CStdStubBuffer *This = (CStdStubBuffer *)iface;
 422     HRESULT r;
 423     IUnknown *new = NULL;
 424
 425     TRACE("(%p)->Connect(%p)\n",This,lpUnkServer);
 426
 427     r = IUnknown_QueryInterface(lpUnkServer, STUB_HEADER(This).piid, (void**)&new);
 428     new = InterlockedExchangePointer((void**)&This->pvServerObject, new);
 429     if(new)
 430         IUnknown_Release(new);
 431     return r;
 432 }
 433
 434 void WINAPI CStdStubBuffer_Disconnect(LPRPCSTUBBUFFER iface)
 435 {
 436     CStdStubBuffer *This = (CStdStubBuffer *)iface;
 437     IUnknown *old;
 438     TRACE("(%p)->Disconnect()\n",This);
 439
 440     old = InterlockedExchangePointer((void**)&This->pvServerObject, NULL);
 441
 442     if(old)
 443         IUnknown_Release(old);
 444 }
 445
 446 HRESULT WINAPI CStdStubBuffer_Invoke(LPRPCSTUBBUFFER iface,
 447                                     PRPCOLEMESSAGE pMsg,
 448                                     LPRPCCHANNELBUFFER pChannel)
 449 {
 450   CStdStubBuffer *This = (CStdStubBuffer *)iface;
 451   DWORD dwPhase = STUB_UNMARSHAL;
 452   HRESULT hr = S_OK;
 453
 454   TRACE("(%p)->Invoke(%p,%p)\n",This,pMsg,pChannel);
 455
 456   __TRY
 457   {
 458     if (STUB_HEADER(This).pDispatchTable)
 459       STUB_HEADER(This).pDispatchTable[pMsg->iMethod](iface, pChannel, (PRPC_MESSAGE)pMsg, &dwPhase);
 460     else /* pure interpreted */
 461       NdrStubCall2(iface, pChannel, (PRPC_MESSAGE)pMsg, &dwPhase);
 462   }
 463   __EXCEPT(stub_filter)
 464   {
 465     DWORD dwExceptionCode = GetExceptionCode();
 466     WARN("a stub call failed with exception 0x%08x (%d)\n", dwExceptionCode, dwExceptionCode);
 467     if (FAILED(dwExceptionCode))
 468       hr = dwExceptionCode;
 469     else
 470       hr = HRESULT_FROM_WIN32(dwExceptionCode);
 471   }
 472   __ENDTRY
 473
 474   return hr;
 475 }
 476
 477 LPRPCSTUBBUFFER WINAPI CStdStubBuffer_IsIIDSupported(LPRPCSTUBBUFFER iface,
 478                                                     REFIID riid)
 479 {
 480   CStdStubBuffer *This = (CStdStubBuffer *)iface;
 481   TRACE("(%p)->IsIIDSupported(%s)\n",This,debugstr_guid(riid));
 482   return IsEqualGUID(STUB_HEADER(This).piid, riid) ? iface : NULL;
 483 }
 484
 485 ULONG WINAPI CStdStubBuffer_CountRefs(LPRPCSTUBBUFFER iface)
 486 {
 487   CStdStubBuffer *This = (CStdStubBuffer *)iface;
 488   TRACE("(%p)->CountRefs()\n",This);
 489   return This->RefCount;
 490 }
 491
 492 HRESULT WINAPI CStdStubBuffer_DebugServerQueryInterface(LPRPCSTUBBUFFER iface,
 493                                                        LPVOID *ppv)
 494 {
 495   CStdStubBuffer *This = (CStdStubBuffer *)iface;
 496   TRACE("(%p)->DebugServerQueryInterface(%p)\n",This,ppv);
 497   return S_OK;
 498 }
 499
 500 void WINAPI CStdStubBuffer_DebugServerRelease(LPRPCSTUBBUFFER iface,
 501                                              LPVOID pv)
 502 {
 503   CStdStubBuffer *This = (CStdStubBuffer *)iface;
 504   TRACE("(%p)->DebugServerRelease(%p)\n",This,pv);
 505 }
 506
 507 const IRpcStubBufferVtbl CStdStubBuffer_Vtbl =
 508 {
 509     CStdStubBuffer_QueryInterface,
 510     CStdStubBuffer_AddRef,
 511     NULL,
 512     CStdStubBuffer_Connect,
 513     CStdStubBuffer_Disconnect,
 514     CStdStubBuffer_Invoke,
 515     CStdStubBuffer_IsIIDSupported,
 516     CStdStubBuffer_CountRefs,
 517     CStdStubBuffer_DebugServerQueryInterface,
 518     CStdStubBuffer_DebugServerRelease
 519 };
 520
 521 static HRESULT WINAPI CStdStubBuffer_Delegating_Connect(LPRPCSTUBBUFFER iface,
 522                                                         LPUNKNOWN lpUnkServer)
 523 {
 524     cstdstubbuffer_delegating_t *This = impl_from_delegating(iface);
 525     HRESULT r;
 526     TRACE("(%p)->Connect(%p)\n", This, lpUnkServer);
 527
 528     r = CStdStubBuffer_Connect(iface, lpUnkServer);
 529     if(SUCCEEDED(r))
 530         r = IRpcStubBuffer_Connect(This->base_stub, (IUnknown*)&This->base_obj);
 531
 532     return r;
 533 }
 534
 535 static void WINAPI CStdStubBuffer_Delegating_Disconnect(LPRPCSTUBBUFFER iface)
 536 {
 537     cstdstubbuffer_delegating_t *This = impl_from_delegating(iface);
 538     TRACE("(%p)->Disconnect()\n", This);
 539
 540     IRpcStubBuffer_Disconnect(This->base_stub);
 541     CStdStubBuffer_Disconnect(iface);
 542 }
 543
 544 static ULONG WINAPI CStdStubBuffer_Delegating_CountRefs(LPRPCSTUBBUFFER iface)
 545 {
 546     cstdstubbuffer_delegating_t *This = impl_from_delegating(iface);
 547     ULONG ret;
 548     TRACE("(%p)->CountRefs()\n", This);
 549
 550     ret = CStdStubBuffer_CountRefs(iface);
 551     ret += IRpcStubBuffer_CountRefs(This->base_stub);
 552
 553     return ret;
 554 }
 555
 556 const IRpcStubBufferVtbl CStdStubBuffer_Delegating_Vtbl =
 557 {
 558     CStdStubBuffer_QueryInterface,
 559     CStdStubBuffer_AddRef,
 560     NULL,
 561     CStdStubBuffer_Delegating_Connect,
 562     CStdStubBuffer_Delegating_Disconnect,
 563     CStdStubBuffer_Invoke,
 564     CStdStubBuffer_IsIIDSupported,
 565     CStdStubBuffer_Delegating_CountRefs,
 566     CStdStubBuffer_DebugServerQueryInterface,
 567     CStdStubBuffer_DebugServerRelease
 568 };
 569
 570 const MIDL_SERVER_INFO *CStdStubBuffer_GetServerInfo(IRpcStubBuffer *iface)
 571 {
 572   CStdStubBuffer *This = (CStdStubBuffer *)iface;
 573   return STUB_HEADER(This).pServerInfo;
 574 }
 575
 576 /************************************************************************
 577  *           NdrStubForwardingFunction [RPCRT4.@]
 578  */
 579 void __RPC_STUB NdrStubForwardingFunction( IRpcStubBuffer *iface, IRpcChannelBuffer *pChannel,
 580                                            PRPC_MESSAGE pMsg, DWORD *pdwStubPhase )
 581 {
 582     /* Note pMsg is passed intact since RPCOLEMESSAGE is basically a RPC_MESSAGE. */
 583
 584     cstdstubbuffer_delegating_t *This = impl_from_delegating(iface);
 585     HRESULT r = IRpcStubBuffer_Invoke(This->base_stub, (RPCOLEMESSAGE*)pMsg, pChannel);
 586     if(FAILED(r)) RpcRaiseException(r);
 587     return;
 588 }
 589
 590 /***********************************************************************
 591  *           NdrStubInitialize [RPCRT4.@]
 592  */
 593 void WINAPI NdrStubInitialize(PRPC_MESSAGE pRpcMsg,
 594                              PMIDL_STUB_MESSAGE pStubMsg,
 595                              PMIDL_STUB_DESC pStubDescriptor,
 596                              LPRPCCHANNELBUFFER pRpcChannelBuffer)
 597 {
 598   TRACE("(%p,%p,%p,%p)\n", pRpcMsg, pStubMsg, pStubDescriptor, pRpcChannelBuffer);
 599   NdrServerInitializeNew(pRpcMsg, pStubMsg, pStubDescriptor);
 600   pStubMsg->pRpcChannelBuffer = pRpcChannelBuffer;
 601   IRpcChannelBuffer_GetDestCtx(pStubMsg->pRpcChannelBuffer,
 602                                &pStubMsg->dwDestContext,
 603                                &pStubMsg->pvDestContext);
 604 }
 605
 606 /***********************************************************************
 607  *           NdrStubGetBuffer [RPCRT4.@]
 608  */
 609 void WINAPI NdrStubGetBuffer(LPRPCSTUBBUFFER iface,
 610                             LPRPCCHANNELBUFFER pRpcChannelBuffer,
 611                             PMIDL_STUB_MESSAGE pStubMsg)
 612 {
 613   CStdStubBuffer *This = (CStdStubBuffer *)iface;
 614   HRESULT hr;
 615
 616   TRACE("(%p, %p, %p)\n", This, pRpcChannelBuffer, pStubMsg);
 617
 618   pStubMsg->RpcMsg->BufferLength = pStubMsg->BufferLength;
 619   hr = IRpcChannelBuffer_GetBuffer(pRpcChannelBuffer,
 620     (RPCOLEMESSAGE *)pStubMsg->RpcMsg, STUB_HEADER(This).piid);
 621   if (FAILED(hr))
 622   {
 623     RpcRaiseException(hr);
 624     return;
 625   }
 626
 627   pStubMsg->Buffer = pStubMsg->RpcMsg->Buffer;
 628 }