reactos/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     DWORD oldprot;
 180
 181     block = VirtualAlloc( NULL, BLOCK_SIZE * sizeof(*block),
 182                           MEM_COMMIT | MEM_RESERVE, PAGE_EXECUTE_READWRITE );
 183     if (!block) return NULL;
 184
 185     for (i = 0; i < BLOCK_SIZE; i++)
 186     {
 187         memcpy( &block[i], opcodes, sizeof(opcodes) );
 188         block[i].offset = (BLOCK_SIZE * num + i + 3) * sizeof(void *);
 189     }
 190     VirtualProtect( block, BLOCK_SIZE * sizeof(*block), PAGE_EXECUTE_READ, &oldprot );
 191     prev = InterlockedCompareExchangePointer( (void **)&method_blocks[num], block, NULL );
 192     if (prev) /* someone beat us to it */
 193     {
 194         VirtualFree( block, 0, MEM_RELEASE );
 195         block = prev;
 196     }
 197     return block;
 198 }
 199
 200 static BOOL fill_delegated_stub_table(IUnknownVtbl *vtbl, DWORD num)
 201 {
 202     const void **entry = (const void **)(vtbl + 1);
 203     DWORD i, j;
 204
 205     if (num - 3 > BLOCK_SIZE * MAX_BLOCKS)
 206     {
 207         FIXME( "%u methods not supported\n", num );
 208         return FALSE;
 209     }
 210     vtbl->QueryInterface = delegating_QueryInterface;
 211     vtbl->AddRef = delegating_AddRef;
 212     vtbl->Release = delegating_Release;
 213     for (i = 0; i < (num - 3 + BLOCK_SIZE - 1) / BLOCK_SIZE; i++)
 214     {
 215         const vtbl_method_t *block = method_blocks[i];
 216         if (!block && !(block = allocate_block( i ))) return FALSE;
 217         for (j = 0; j < BLOCK_SIZE && j < num - 3 - i * BLOCK_SIZE; j++) *entry++ = &block[j];
 218     }
 219     return TRUE;
 220 }
 221
 222 BOOL fill_delegated_proxy_table(IUnknownVtbl *vtbl, DWORD num)
 223 {
 224     const void **entry = (const void **)(vtbl + 1);
 225     DWORD i, j;
 226
 227     if (num - 3 > BLOCK_SIZE * MAX_BLOCKS)
 228     {
 229         FIXME( "%u methods not supported\n", num );
 230         return FALSE;
 231     }
 232     vtbl->QueryInterface = IUnknown_QueryInterface_Proxy;
 233     vtbl->AddRef = IUnknown_AddRef_Proxy;
 234     vtbl->Release = IUnknown_Release_Proxy;
 235     for (i = 0; i < (num - 3 + BLOCK_SIZE - 1) / BLOCK_SIZE; i++)
 236     {
 237         const vtbl_method_t *block = method_blocks[i];
 238         if (!block && !(block = allocate_block( i ))) return FALSE;
 239         for (j = 0; j < BLOCK_SIZE && j < num - 3 - i * BLOCK_SIZE; j++, entry++)
 240             if (!*entry) *entry = &block[j];
 241     }
 242     return TRUE;
 243 }
 244
 245 static IUnknownVtbl *get_delegating_vtbl(DWORD num_methods)
 246 {
 247     IUnknownVtbl *ret;
 248
 249     if (num_methods < 256) num_methods = 256;  /* avoid frequent reallocations */
 250
 251     EnterCriticalSection(&delegating_vtbl_section);
 252
 253     if(!current_vtbl || num_methods > current_vtbl->size)
 254     {
 255         ref_counted_vtbl *table = HeapAlloc(GetProcessHeap(), 0,
 256                                             FIELD_OFFSET(ref_counted_vtbl, vtbl) + num_methods * sizeof(void*));
 257         if (!table)
 258         {
 259             LeaveCriticalSection(&delegating_vtbl_section);
 260             return NULL;
 261         }
 262
 263         table->ref = 0;
 264         table->size = num_methods;
 265         fill_delegated_stub_table(&table->vtbl, num_methods);
 266
 267         if (current_vtbl && current_vtbl->ref == 0)
 268         {
 269             TRACE("freeing old table\n");
 270             HeapFree(GetProcessHeap(), 0, current_vtbl);
 271         }
 272         current_vtbl = table;
 273     }
 274
 275     current_vtbl->ref++;
 276     ret = &current_vtbl->vtbl;
 277     LeaveCriticalSection(&delegating_vtbl_section);
 278     return ret;
 279 }
 280
 281 static void release_delegating_vtbl(IUnknownVtbl *vtbl)
 282 {
 283     ref_counted_vtbl *table = (ref_counted_vtbl*)((DWORD *)vtbl - 1);
 284
 285     EnterCriticalSection(&delegating_vtbl_section);
 286     table->ref--;
 287     TRACE("ref now %d\n", table->ref);
 288     if(table->ref == 0 && table != current_vtbl)
 289     {
 290         TRACE("... and we're not current so free'ing\n");
 291         HeapFree(GetProcessHeap(), 0, table);
 292     }
 293     LeaveCriticalSection(&delegating_vtbl_section);
 294 }
 295
 296 HRESULT CStdStubBuffer_Delegating_Construct(REFIID riid,
 297                                             LPUNKNOWN pUnkServer,
 298                                             PCInterfaceName name,
 299                                             CInterfaceStubVtbl *vtbl,
 300                                             REFIID delegating_iid,
 301                                             LPPSFACTORYBUFFER pPSFactory,
 302                                             LPRPCSTUBBUFFER *ppStub)
 303 {
 304     cstdstubbuffer_delegating_t *This;
 305     IUnknown *pvServer;
 306     HRESULT r;
 307
 308     TRACE("(%p,%p,%p,%p) %s\n", pUnkServer, vtbl, pPSFactory, ppStub, name);
 309     TRACE("iid=%s delegating to %s\n", debugstr_guid(vtbl->header.piid), debugstr_guid(delegating_iid));
 310     TRACE("vtbl=%p\n", &vtbl->Vtbl);
 311
 312     if (!IsEqualGUID(vtbl->header.piid, riid))
 313     {
 314         ERR("IID mismatch during stub creation\n");
 315         return RPC_E_UNEXPECTED;
 316     }
 317
 318     r = IUnknown_QueryInterface(pUnkServer, riid, (void**)&pvServer);
 319     if(FAILED(r)) return r;
 320
 321     This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*This));
 322     if (!This)
 323     {
 324         IUnknown_Release(pvServer);
 325         return E_OUTOFMEMORY;
 326     }
 327
 328     This->base_obj = get_delegating_vtbl( vtbl->header.DispatchTableCount );
 329     r = create_stub(delegating_iid, (IUnknown*)&This->base_obj, &This->base_stub);
 330     if(FAILED(r))
 331     {
 332         release_delegating_vtbl(This->base_obj);
 333         HeapFree(GetProcessHeap(), 0, This);
 334         IUnknown_Release(pvServer);
 335         return r;
 336     }
 337
 338     This->stub_buffer.lpVtbl = &vtbl->Vtbl;
 339     This->stub_buffer.RefCount = 1;
 340     This->stub_buffer.pvServerObject = pvServer;
 341     This->stub_buffer.pPSFactory = pPSFactory;
 342     *ppStub = (LPRPCSTUBBUFFER)&This->stub_buffer;
 343
 344     IPSFactoryBuffer_AddRef(pPSFactory);
 345     return S_OK;
 346 }
 347
 348 HRESULT WINAPI CStdStubBuffer_QueryInterface(LPRPCSTUBBUFFER iface,
 349                                             REFIID riid,
 350                                             LPVOID *obj)
 351 {
 352   CStdStubBuffer *This = (CStdStubBuffer *)iface;
 353   TRACE("(%p)->QueryInterface(%s,%p)\n",This,debugstr_guid(riid),obj);
 354
 355   if (IsEqualIID(&IID_IUnknown, riid) ||
 356       IsEqualIID(&IID_IRpcStubBuffer, riid))
 357   {
 358     IRpcStubBuffer_AddRef(iface);
 359     *obj = iface;
 360     return S_OK;
 361   }
 362   *obj = NULL;
 363   return E_NOINTERFACE;
 364 }
 365
 366 ULONG WINAPI CStdStubBuffer_AddRef(LPRPCSTUBBUFFER iface)
 367 {
 368   CStdStubBuffer *This = (CStdStubBuffer *)iface;
 369   TRACE("(%p)->AddRef()\n",This);
 370   return InterlockedIncrement(&This->RefCount);
 371 }
 372
 373 ULONG WINAPI NdrCStdStubBuffer_Release(LPRPCSTUBBUFFER iface,
 374                                       LPPSFACTORYBUFFER pPSF)
 375 {
 376   CStdStubBuffer *This = (CStdStubBuffer *)iface;
 377   ULONG refs;
 378
 379   TRACE("(%p)->Release()\n",This);
 380
 381   refs = InterlockedDecrement(&This->RefCount);
 382   if (!refs)
 383   {
 384     /* test_Release shows that native doesn't call Disconnect here.
 385        We'll leave it in for the time being. */
 386     IRpcStubBuffer_Disconnect(iface);
 387
 388     IPSFactoryBuffer_Release(pPSF);
 389     HeapFree(GetProcessHeap(),0,This);
 390   }
 391   return refs;
 392 }
 393
 394 ULONG WINAPI NdrCStdStubBuffer2_Release(LPRPCSTUBBUFFER iface,
 395                                         LPPSFACTORYBUFFER pPSF)
 396 {
 397     cstdstubbuffer_delegating_t *This = impl_from_delegating( iface );
 398     ULONG refs;
 399
 400     TRACE("(%p)->Release()\n", This);
 401
 402     refs = InterlockedDecrement(&This->stub_buffer.RefCount);
 403     if (!refs)
 404     {
 405         /* Just like NdrCStdStubBuffer_Release, we shouldn't call
 406            Disconnect here */
 407         IRpcStubBuffer_Disconnect((IRpcStubBuffer *)&This->stub_buffer);
 408
 409         IRpcStubBuffer_Release(This->base_stub);
 410         release_delegating_vtbl(This->base_obj);
 411
 412         IPSFactoryBuffer_Release(pPSF);
 413         HeapFree(GetProcessHeap(), 0, This);
 414     }
 415
 416     return refs;
 417 }
 418
 419 HRESULT WINAPI CStdStubBuffer_Connect(LPRPCSTUBBUFFER iface,
 420                                      LPUNKNOWN lpUnkServer)
 421 {
 422     CStdStubBuffer *This = (CStdStubBuffer *)iface;
 423     HRESULT r;
 424     IUnknown *new = NULL;
 425
 426     TRACE("(%p)->Connect(%p)\n",This,lpUnkServer);
 427
 428     r = IUnknown_QueryInterface(lpUnkServer, STUB_HEADER(This).piid, (void**)&new);
 429     new = InterlockedExchangePointer((void**)&This->pvServerObject, new);
 430     if(new)
 431         IUnknown_Release(new);
 432     return r;
 433 }
 434
 435 void WINAPI CStdStubBuffer_Disconnect(LPRPCSTUBBUFFER iface)
 436 {
 437     CStdStubBuffer *This = (CStdStubBuffer *)iface;
 438     IUnknown *old;
 439     TRACE("(%p)->Disconnect()\n",This);
 440
 441     old = InterlockedExchangePointer((void**)&This->pvServerObject, NULL);
 442
 443     if(old)
 444         IUnknown_Release(old);
 445 }
 446
 447 HRESULT WINAPI CStdStubBuffer_Invoke(LPRPCSTUBBUFFER iface,
 448                                     PRPCOLEMESSAGE pMsg,
 449                                     LPRPCCHANNELBUFFER pChannel)
 450 {
 451   CStdStubBuffer *This = (CStdStubBuffer *)iface;
 452   DWORD dwPhase = STUB_UNMARSHAL;
 453   HRESULT hr = S_OK;
 454
 455   TRACE("(%p)->Invoke(%p,%p)\n",This,pMsg,pChannel);
 456
 457   __TRY
 458   {
 459     if (STUB_HEADER(This).pDispatchTable)
 460       STUB_HEADER(This).pDispatchTable[pMsg->iMethod](iface, pChannel, (PRPC_MESSAGE)pMsg, &dwPhase);
 461     else /* pure interpreted */
 462       NdrStubCall2(iface, pChannel, (PRPC_MESSAGE)pMsg, &dwPhase);
 463   }
 464   __EXCEPT(stub_filter)
 465   {
 466     DWORD dwExceptionCode = GetExceptionCode();
 467     WARN("a stub call failed with exception 0x%08x (%d)\n", dwExceptionCode, dwExceptionCode);
 468     if (FAILED(dwExceptionCode))
 469       hr = dwExceptionCode;
 470     else
 471       hr = HRESULT_FROM_WIN32(dwExceptionCode);
 472   }
 473   __ENDTRY
 474
 475   return hr;
 476 }
 477
 478 LPRPCSTUBBUFFER WINAPI CStdStubBuffer_IsIIDSupported(LPRPCSTUBBUFFER iface,
 479                                                     REFIID riid)
 480 {
 481   CStdStubBuffer *This = (CStdStubBuffer *)iface;
 482   TRACE("(%p)->IsIIDSupported(%s)\n",This,debugstr_guid(riid));
 483   return IsEqualGUID(STUB_HEADER(This).piid, riid) ? iface : NULL;
 484 }
 485
 486 ULONG WINAPI CStdStubBuffer_CountRefs(LPRPCSTUBBUFFER iface)
 487 {
 488   CStdStubBuffer *This = (CStdStubBuffer *)iface;
 489   TRACE("(%p)->CountRefs()\n",This);
 490   return This->RefCount;
 491 }
 492
 493 HRESULT WINAPI CStdStubBuffer_DebugServerQueryInterface(LPRPCSTUBBUFFER iface,
 494                                                        LPVOID *ppv)
 495 {
 496   CStdStubBuffer *This = (CStdStubBuffer *)iface;
 497   TRACE("(%p)->DebugServerQueryInterface(%p)\n",This,ppv);
 498   return S_OK;
 499 }
 500
 501 void WINAPI CStdStubBuffer_DebugServerRelease(LPRPCSTUBBUFFER iface,
 502                                              LPVOID pv)
 503 {
 504   CStdStubBuffer *This = (CStdStubBuffer *)iface;
 505   TRACE("(%p)->DebugServerRelease(%p)\n",This,pv);
 506 }
 507
 508 const IRpcStubBufferVtbl CStdStubBuffer_Vtbl =
 509 {
 510     CStdStubBuffer_QueryInterface,
 511     CStdStubBuffer_AddRef,
 512     NULL,
 513     CStdStubBuffer_Connect,
 514     CStdStubBuffer_Disconnect,
 515     CStdStubBuffer_Invoke,
 516     CStdStubBuffer_IsIIDSupported,
 517     CStdStubBuffer_CountRefs,
 518     CStdStubBuffer_DebugServerQueryInterface,
 519     CStdStubBuffer_DebugServerRelease
 520 };
 521
 522 static HRESULT WINAPI CStdStubBuffer_Delegating_Connect(LPRPCSTUBBUFFER iface,
 523                                                         LPUNKNOWN lpUnkServer)
 524 {
 525     cstdstubbuffer_delegating_t *This = impl_from_delegating(iface);
 526     HRESULT r;
 527     TRACE("(%p)->Connect(%p)\n", This, lpUnkServer);
 528
 529     r = CStdStubBuffer_Connect(iface, lpUnkServer);
 530     if(SUCCEEDED(r))
 531         r = IRpcStubBuffer_Connect(This->base_stub, (IUnknown*)&This->base_obj);
 532
 533     return r;
 534 }
 535
 536 static void WINAPI CStdStubBuffer_Delegating_Disconnect(LPRPCSTUBBUFFER iface)
 537 {
 538     cstdstubbuffer_delegating_t *This = impl_from_delegating(iface);
 539     TRACE("(%p)->Disconnect()\n", This);
 540
 541     IRpcStubBuffer_Disconnect(This->base_stub);
 542     CStdStubBuffer_Disconnect(iface);
 543 }
 544
 545 static ULONG WINAPI CStdStubBuffer_Delegating_CountRefs(LPRPCSTUBBUFFER iface)
 546 {
 547     cstdstubbuffer_delegating_t *This = impl_from_delegating(iface);
 548     ULONG ret;
 549     TRACE("(%p)->CountRefs()\n", This);
 550
 551     ret = CStdStubBuffer_CountRefs(iface);
 552     ret += IRpcStubBuffer_CountRefs(This->base_stub);
 553
 554     return ret;
 555 }
 556
 557 const IRpcStubBufferVtbl CStdStubBuffer_Delegating_Vtbl =
 558 {
 559     CStdStubBuffer_QueryInterface,
 560     CStdStubBuffer_AddRef,
 561     NULL,
 562     CStdStubBuffer_Delegating_Connect,
 563     CStdStubBuffer_Delegating_Disconnect,
 564     CStdStubBuffer_Invoke,
 565     CStdStubBuffer_IsIIDSupported,
 566     CStdStubBuffer_Delegating_CountRefs,
 567     CStdStubBuffer_DebugServerQueryInterface,
 568     CStdStubBuffer_DebugServerRelease
 569 };
 570
 571 const MIDL_SERVER_INFO *CStdStubBuffer_GetServerInfo(IRpcStubBuffer *iface)
 572 {
 573   CStdStubBuffer *This = (CStdStubBuffer *)iface;
 574   return STUB_HEADER(This).pServerInfo;
 575 }
 576
 577 /************************************************************************
 578  *           NdrStubForwardingFunction [RPCRT4.@]
 579  */
 580 void __RPC_STUB NdrStubForwardingFunction( IRpcStubBuffer *iface, IRpcChannelBuffer *pChannel,
 581                                            PRPC_MESSAGE pMsg, DWORD *pdwStubPhase )
 582 {
 583     /* Note pMsg is passed intact since RPCOLEMESSAGE is basically a RPC_MESSAGE. */
 584
 585     cstdstubbuffer_delegating_t *This = impl_from_delegating(iface);
 586     HRESULT r = IRpcStubBuffer_Invoke(This->base_stub, (RPCOLEMESSAGE*)pMsg, pChannel);
 587     if(FAILED(r)) RpcRaiseException(r);
 588     return;
 589 }
 590
 591 /***********************************************************************
 592  *           NdrStubInitialize [RPCRT4.@]
 593  */
 594 void WINAPI NdrStubInitialize(PRPC_MESSAGE pRpcMsg,
 595                              PMIDL_STUB_MESSAGE pStubMsg,
 596                              PMIDL_STUB_DESC pStubDescriptor,
 597                              LPRPCCHANNELBUFFER pRpcChannelBuffer)
 598 {
 599   TRACE("(%p,%p,%p,%p)\n", pRpcMsg, pStubMsg, pStubDescriptor, pRpcChannelBuffer);
 600   NdrServerInitializeNew(pRpcMsg, pStubMsg, pStubDescriptor);
 601   pStubMsg->pRpcChannelBuffer = pRpcChannelBuffer;
 602   IRpcChannelBuffer_GetDestCtx(pStubMsg->pRpcChannelBuffer,
 603                                &pStubMsg->dwDestContext,
 604                                &pStubMsg->pvDestContext);
 605 }
 606
 607 /***********************************************************************
 608  *           NdrStubGetBuffer [RPCRT4.@]
 609  */
 610 void WINAPI NdrStubGetBuffer(LPRPCSTUBBUFFER iface,
 611                             LPRPCCHANNELBUFFER pRpcChannelBuffer,
 612                             PMIDL_STUB_MESSAGE pStubMsg)
 613 {
 614   CStdStubBuffer *This = (CStdStubBuffer *)iface;
 615   HRESULT hr;
 616
 617   TRACE("(%p, %p, %p)\n", This, pRpcChannelBuffer, pStubMsg);
 618
 619   pStubMsg->RpcMsg->BufferLength = pStubMsg->BufferLength;
 620   hr = IRpcChannelBuffer_GetBuffer(pRpcChannelBuffer,
 621     (RPCOLEMESSAGE *)pStubMsg->RpcMsg, STUB_HEADER(This).piid);
 622   if (FAILED(hr))
 623   {
 624     RpcRaiseException(hr);
 625     return;
 626   }
 627
 628   pStubMsg->Buffer = pStubMsg->RpcMsg->Buffer;
 629 }