2 * COM proxy implementation
4 * Copyright 2001 Ove Kåven, TransGaming Technologies
5 * Copyright 2009 Alexandre Julliard
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.
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.
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
21 * TODO: Handle non-i386 architectures
25 #include "wine/port.h"
40 #include "ndr_stubless.h"
41 #include "wine/debug.h"
43 WINE_DEFAULT_DEBUG_CHANNEL(ole
);
45 /* I don't know what MS's std proxy structure looks like,
46 so this probably doesn't match, but that shouldn't matter */
48 IRpcProxyBuffer IRpcProxyBuffer_iface
;
53 IUnknown
*base_object
; /* must be at offset 0x10 from PVtbl */
54 IRpcProxyBuffer
*base_proxy
;
56 LPPSFACTORYBUFFER pPSFactory
;
57 LPRPCCHANNELBUFFER pChannel
;
60 static const IRpcProxyBufferVtbl StdProxy_Vtbl
;
62 static inline StdProxyImpl
*impl_from_IRpcProxyBuffer(IRpcProxyBuffer
*iface
)
64 return CONTAINING_RECORD(iface
, StdProxyImpl
, IRpcProxyBuffer_iface
);
67 static inline StdProxyImpl
*impl_from_proxy_obj( void *iface
)
69 return CONTAINING_RECORD(iface
, StdProxyImpl
, PVtbl
);
74 extern void call_stubless_func(void);
75 __ASM_GLOBAL_FUNC(call_stubless_func
,
76 "movl 4(%esp),%ecx\n\t" /* This pointer */
77 "movl (%ecx),%ecx\n\t" /* This->lpVtbl */
78 "movl -8(%ecx),%ecx\n\t" /* MIDL_STUBLESS_PROXY_INFO */
79 "movl 8(%ecx),%edx\n\t" /* info->FormatStringOffset */
80 "movzwl (%edx,%eax,2),%edx\n\t" /* FormatStringOffset[index] */
81 "addl 4(%ecx),%edx\n\t" /* info->ProcFormatString + offset */
82 "movzwl 8(%edx),%eax\n\t" /* arguments size */
84 __ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
85 "leal 8(%esp),%eax\n\t" /* &This */
87 __ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
88 "pushl %edx\n\t" /* format string */
89 __ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
90 "pushl (%ecx)\n\t" /* info->pStubDesc */
91 __ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
92 "call " __ASM_NAME("ndr_client_call") "\n\t"
93 "leal 12(%esp),%esp\n\t"
94 __ASM_CFI(".cfi_adjust_cfa_offset -12\n\t")
95 "popl %edx\n\t" /* arguments size */
96 __ASM_CFI(".cfi_adjust_cfa_offset -4\n\t")
97 "movl (%esp),%ecx\n\t" /* return address */
101 #include "pshpack1.h"
111 static inline void init_thunk( struct thunk
*thunk
, unsigned int index
)
113 thunk
->mov_eax
= 0xb8; /* movl $n,%eax */
114 thunk
->index
= index
;
115 thunk
->jmp
= 0xe9; /* jmp */
116 thunk
->handler
= (char *)call_stubless_func
- (char *)(&thunk
->handler
+ 1);
119 #elif defined(__x86_64__)
121 extern void call_stubless_func(void);
122 __ASM_GLOBAL_FUNC(call_stubless_func
,
123 "movq %rcx,0x8(%rsp)\n\t"
124 "movq %rdx,0x10(%rsp)\n\t"
125 "movq %r8,0x18(%rsp)\n\t"
126 "movq %r9,0x20(%rsp)\n\t"
127 "leaq 0x8(%rsp),%r8\n\t" /* &This */
128 "movq (%rcx),%rcx\n\t" /* This->lpVtbl */
129 "movq -0x10(%rcx),%rcx\n\t" /* MIDL_STUBLESS_PROXY_INFO */
130 "movq 0x10(%rcx),%rdx\n\t" /* info->FormatStringOffset */
131 "movzwq (%rdx,%r10,2),%rdx\n\t" /* FormatStringOffset[index] */
132 "addq 8(%rcx),%rdx\n\t" /* info->ProcFormatString + offset */
133 "movq (%rcx),%rcx\n\t" /* info->pStubDesc */
134 "subq $0x28,%rsp\n\t"
135 __ASM_CFI(".cfi_adjust_cfa_offset 0x28\n\t")
136 "call " __ASM_NAME("ndr_client_call") "\n\t"
137 "addq $0x28,%rsp\n\t"
138 __ASM_CFI(".cfi_adjust_cfa_offset -0x28\n\t")
141 #include "pshpack1.h"
152 static const struct thunk thunk_template
=
154 { 0x49, 0xc7, 0xc2 }, 0, /* movq $index,%r10 */
155 { 0x48, 0xb8 }, 0, /* movq $call_stubless_func,%rax */
156 { 0xff, 0xe0 } /* jmp *%rax */
159 static inline void init_thunk( struct thunk
*thunk
, unsigned int index
)
161 *thunk
= thunk_template
;
162 thunk
->index
= index
;
163 thunk
->call_stubless
= call_stubless_func
;
168 #warning You must implement stubless proxies for your CPU
175 static inline void init_thunk( struct thunk
*thunk
, unsigned int index
)
177 thunk
->index
= index
;
180 #endif /* __i386__ */
182 #define BLOCK_SIZE 1024
183 #define MAX_BLOCKS 64 /* 64k methods should be enough for anybody */
185 static const struct thunk
*method_blocks
[MAX_BLOCKS
];
187 static const struct thunk
*allocate_block( unsigned int num
)
190 struct thunk
*prev
, *block
;
192 block
= VirtualAlloc( NULL
, BLOCK_SIZE
* sizeof(*block
),
193 MEM_COMMIT
| MEM_RESERVE
, PAGE_EXECUTE_READWRITE
);
194 if (!block
) return NULL
;
196 for (i
= 0; i
< BLOCK_SIZE
; i
++) init_thunk( &block
[i
], BLOCK_SIZE
* num
+ i
+ 3 );
197 VirtualProtect( block
, BLOCK_SIZE
* sizeof(*block
), PAGE_EXECUTE_READ
, NULL
);
198 prev
= InterlockedCompareExchangePointer( (void **)&method_blocks
[num
], block
, NULL
);
199 if (prev
) /* someone beat us to it */
201 VirtualFree( block
, 0, MEM_RELEASE
);
207 static BOOL
fill_stubless_table( IUnknownVtbl
*vtbl
, DWORD num
)
209 const void **entry
= (const void **)(vtbl
+ 1);
212 if (num
- 3 > BLOCK_SIZE
* MAX_BLOCKS
)
214 FIXME( "%u methods not supported\n", num
);
217 for (i
= 0; i
< (num
- 3 + BLOCK_SIZE
- 1) / BLOCK_SIZE
; i
++)
219 const struct thunk
*block
= method_blocks
[i
];
220 if (!block
&& !(block
= allocate_block( i
))) return FALSE
;
221 for (j
= 0; j
< BLOCK_SIZE
&& j
< num
- 3 - i
* BLOCK_SIZE
; j
++, entry
++)
222 if (*entry
== (LPVOID
)-1) *entry
= &block
[j
];
227 HRESULT
StdProxy_Construct(REFIID riid
,
229 const ProxyFileInfo
*ProxyInfo
,
231 LPPSFACTORYBUFFER pPSFactory
,
232 LPRPCPROXYBUFFER
*ppProxy
,
236 PCInterfaceName name
= ProxyInfo
->pNamesArray
[Index
];
237 CInterfaceProxyVtbl
*vtbl
= ProxyInfo
->pProxyVtblList
[Index
];
239 TRACE("(%p,%p,%p,%p,%p) %s\n", pUnkOuter
, vtbl
, pPSFactory
, ppProxy
, ppvObj
, name
);
241 /* TableVersion = 2 means it is the stubless version of CInterfaceProxyVtbl */
242 if (ProxyInfo
->TableVersion
> 1) {
243 ULONG count
= ProxyInfo
->pStubVtblList
[Index
]->header
.DispatchTableCount
;
244 vtbl
= (CInterfaceProxyVtbl
*)((const void **)vtbl
+ 1);
245 TRACE("stubless vtbl %p: count=%d\n", vtbl
->Vtbl
, count
);
246 fill_stubless_table( (IUnknownVtbl
*)vtbl
->Vtbl
, count
);
249 if (!IsEqualGUID(vtbl
->header
.piid
, riid
)) {
250 ERR("IID mismatch during proxy creation\n");
251 return RPC_E_UNEXPECTED
;
254 This
= HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY
,sizeof(StdProxyImpl
));
255 if (!This
) return E_OUTOFMEMORY
;
257 if (!pUnkOuter
) pUnkOuter
= (IUnknown
*)This
;
258 This
->IRpcProxyBuffer_iface
.lpVtbl
= &StdProxy_Vtbl
;
259 This
->PVtbl
= vtbl
->Vtbl
;
260 /* one reference for the proxy */
262 This
->piid
= vtbl
->header
.piid
;
263 This
->base_object
= NULL
;
264 This
->base_proxy
= NULL
;
265 This
->pUnkOuter
= pUnkOuter
;
267 This
->pPSFactory
= pPSFactory
;
268 This
->pChannel
= NULL
;
270 if(ProxyInfo
->pDelegatedIIDs
&& ProxyInfo
->pDelegatedIIDs
[Index
])
272 HRESULT r
= create_proxy( ProxyInfo
->pDelegatedIIDs
[Index
], NULL
,
273 &This
->base_proxy
, (void **)&This
->base_object
);
276 HeapFree( GetProcessHeap(), 0, This
);
281 *ppProxy
= &This
->IRpcProxyBuffer_iface
;
282 *ppvObj
= &This
->PVtbl
;
283 IUnknown_AddRef((IUnknown
*)*ppvObj
);
284 IPSFactoryBuffer_AddRef(pPSFactory
);
286 TRACE( "iid=%s this %p proxy %p obj %p vtbl %p base proxy %p base obj %p\n",
287 debugstr_guid(riid
), This
, *ppProxy
, *ppvObj
, This
->PVtbl
, This
->base_proxy
, This
->base_object
);
291 static HRESULT WINAPI
StdProxy_QueryInterface(LPRPCPROXYBUFFER iface
,
295 StdProxyImpl
*This
= impl_from_IRpcProxyBuffer(iface
);
296 TRACE("(%p)->QueryInterface(%s,%p)\n",This
,debugstr_guid(riid
),obj
);
298 if (IsEqualGUID(&IID_IUnknown
,riid
) ||
299 IsEqualGUID(This
->piid
,riid
)) {
301 InterlockedIncrement(&This
->RefCount
);
305 if (IsEqualGUID(&IID_IRpcProxyBuffer
,riid
)) {
306 *obj
= &This
->IRpcProxyBuffer_iface
;
307 InterlockedIncrement(&This
->RefCount
);
311 return E_NOINTERFACE
;
314 static ULONG WINAPI
StdProxy_AddRef(LPRPCPROXYBUFFER iface
)
316 StdProxyImpl
*This
= impl_from_IRpcProxyBuffer(iface
);
317 TRACE("(%p)->AddRef()\n",This
);
319 return InterlockedIncrement(&This
->RefCount
);
322 static ULONG WINAPI
StdProxy_Release(LPRPCPROXYBUFFER iface
)
325 StdProxyImpl
*This
= impl_from_IRpcProxyBuffer(iface
);
326 TRACE("(%p)->Release()\n",This
);
328 refs
= InterlockedDecrement(&This
->RefCount
);
332 IRpcProxyBuffer_Disconnect(&This
->IRpcProxyBuffer_iface
);
334 if (This
->base_object
) IUnknown_Release( This
->base_object
);
335 if (This
->base_proxy
) IRpcProxyBuffer_Release( This
->base_proxy
);
337 IPSFactoryBuffer_Release(This
->pPSFactory
);
338 HeapFree(GetProcessHeap(),0,This
);
344 static HRESULT WINAPI
StdProxy_Connect(LPRPCPROXYBUFFER iface
,
345 LPRPCCHANNELBUFFER pChannel
)
347 StdProxyImpl
*This
= impl_from_IRpcProxyBuffer(iface
);
348 TRACE("(%p)->Connect(%p)\n",This
,pChannel
);
350 This
->pChannel
= pChannel
;
351 IRpcChannelBuffer_AddRef(pChannel
);
352 if (This
->base_proxy
) IRpcProxyBuffer_Connect( This
->base_proxy
, pChannel
);
356 static VOID WINAPI
StdProxy_Disconnect(LPRPCPROXYBUFFER iface
)
358 StdProxyImpl
*This
= impl_from_IRpcProxyBuffer(iface
);
359 TRACE("(%p)->Disconnect()\n",This
);
361 if (This
->base_proxy
) IRpcProxyBuffer_Disconnect( This
->base_proxy
);
363 IRpcChannelBuffer_Release(This
->pChannel
);
364 This
->pChannel
= NULL
;
367 static const IRpcProxyBufferVtbl StdProxy_Vtbl
=
369 StdProxy_QueryInterface
,
376 static void StdProxy_GetChannel(LPVOID iface
,
377 LPRPCCHANNELBUFFER
*ppChannel
)
379 StdProxyImpl
*This
= impl_from_proxy_obj( iface
);
380 TRACE("(%p)->GetChannel(%p) %s\n",This
,ppChannel
,This
->name
);
382 *ppChannel
= This
->pChannel
;
385 static void StdProxy_GetIID(LPVOID iface
,
388 StdProxyImpl
*This
= impl_from_proxy_obj( iface
);
389 TRACE("(%p)->GetIID(%p) %s\n",This
,ppiid
,This
->name
);
394 HRESULT WINAPI
IUnknown_QueryInterface_Proxy(LPUNKNOWN iface
,
398 StdProxyImpl
*This
= impl_from_proxy_obj( iface
);
399 TRACE("(%p)->QueryInterface(%s,%p) %s\n",This
,debugstr_guid(riid
),ppvObj
,This
->name
);
400 return IUnknown_QueryInterface(This
->pUnkOuter
,riid
,ppvObj
);
403 ULONG WINAPI
IUnknown_AddRef_Proxy(LPUNKNOWN iface
)
405 StdProxyImpl
*This
= impl_from_proxy_obj( iface
);
406 TRACE("(%p)->AddRef() %s\n",This
,This
->name
);
407 return IUnknown_AddRef(This
->pUnkOuter
);
410 ULONG WINAPI
IUnknown_Release_Proxy(LPUNKNOWN iface
)
412 StdProxyImpl
*This
= impl_from_proxy_obj( iface
);
413 TRACE("(%p)->Release() %s\n",This
,This
->name
);
414 return IUnknown_Release(This
->pUnkOuter
);
417 /***********************************************************************
418 * NdrProxyInitialize [RPCRT4.@]
420 void WINAPI
NdrProxyInitialize(void *This
,
421 PRPC_MESSAGE pRpcMsg
,
422 PMIDL_STUB_MESSAGE pStubMsg
,
423 PMIDL_STUB_DESC pStubDescriptor
,
424 unsigned int ProcNum
)
426 TRACE("(%p,%p,%p,%p,%d)\n", This
, pRpcMsg
, pStubMsg
, pStubDescriptor
, ProcNum
);
427 NdrClientInitializeNew(pRpcMsg
, pStubMsg
, pStubDescriptor
, ProcNum
);
428 StdProxy_GetChannel(This
, &pStubMsg
->pRpcChannelBuffer
);
429 IRpcChannelBuffer_GetDestCtx(pStubMsg
->pRpcChannelBuffer
,
430 &pStubMsg
->dwDestContext
,
431 &pStubMsg
->pvDestContext
);
432 TRACE("channel=%p\n", pStubMsg
->pRpcChannelBuffer
);
435 /***********************************************************************
436 * NdrProxyGetBuffer [RPCRT4.@]
438 void WINAPI
NdrProxyGetBuffer(void *This
,
439 PMIDL_STUB_MESSAGE pStubMsg
)
442 const IID
*riid
= NULL
;
444 TRACE("(%p,%p)\n", This
, pStubMsg
);
445 pStubMsg
->RpcMsg
->BufferLength
= pStubMsg
->BufferLength
;
446 pStubMsg
->dwStubPhase
= PROXY_GETBUFFER
;
447 StdProxy_GetIID(This
, &riid
);
448 hr
= IRpcChannelBuffer_GetBuffer(pStubMsg
->pRpcChannelBuffer
,
449 (RPCOLEMESSAGE
*)pStubMsg
->RpcMsg
,
453 RpcRaiseException(hr
);
456 pStubMsg
->fBufferValid
= TRUE
;
457 pStubMsg
->BufferStart
= pStubMsg
->RpcMsg
->Buffer
;
458 pStubMsg
->BufferEnd
= pStubMsg
->BufferStart
+ pStubMsg
->BufferLength
;
459 pStubMsg
->Buffer
= pStubMsg
->BufferStart
;
460 pStubMsg
->dwStubPhase
= PROXY_MARSHAL
;
463 /***********************************************************************
464 * NdrProxySendReceive [RPCRT4.@]
466 void WINAPI
NdrProxySendReceive(void *This
,
467 PMIDL_STUB_MESSAGE pStubMsg
)
472 TRACE("(%p,%p)\n", This
, pStubMsg
);
474 if (!pStubMsg
->pRpcChannelBuffer
)
476 WARN("Trying to use disconnected proxy %p\n", This
);
477 RpcRaiseException(RPC_E_DISCONNECTED
);
480 pStubMsg
->dwStubPhase
= PROXY_SENDRECEIVE
;
481 /* avoid sending uninitialised parts of the buffer on the wire */
482 pStubMsg
->RpcMsg
->BufferLength
= pStubMsg
->Buffer
- (unsigned char *)pStubMsg
->RpcMsg
->Buffer
;
483 hr
= IRpcChannelBuffer_SendReceive(pStubMsg
->pRpcChannelBuffer
,
484 (RPCOLEMESSAGE
*)pStubMsg
->RpcMsg
,
486 pStubMsg
->dwStubPhase
= PROXY_UNMARSHAL
;
487 pStubMsg
->BufferLength
= pStubMsg
->RpcMsg
->BufferLength
;
488 pStubMsg
->BufferStart
= pStubMsg
->RpcMsg
->Buffer
;
489 pStubMsg
->BufferEnd
= pStubMsg
->BufferStart
+ pStubMsg
->BufferLength
;
490 pStubMsg
->Buffer
= pStubMsg
->BufferStart
;
492 /* raise exception if call failed */
493 if (hr
== RPC_S_CALL_FAILED
) RpcRaiseException(*(DWORD
*)pStubMsg
->Buffer
);
494 else if (FAILED(hr
)) RpcRaiseException(hr
);
497 /***********************************************************************
498 * NdrProxyFreeBuffer [RPCRT4.@]
500 void WINAPI
NdrProxyFreeBuffer(void *This
,
501 PMIDL_STUB_MESSAGE pStubMsg
)
503 TRACE("(%p,%p)\n", This
, pStubMsg
);
505 if (pStubMsg
->fBufferValid
)
507 IRpcChannelBuffer_FreeBuffer(pStubMsg
->pRpcChannelBuffer
,
508 (RPCOLEMESSAGE
*)pStubMsg
->RpcMsg
);
509 pStubMsg
->fBufferValid
= TRUE
;
513 /***********************************************************************
514 * NdrProxyErrorHandler [RPCRT4.@]
516 HRESULT WINAPI
NdrProxyErrorHandler(DWORD dwExceptionCode
)
518 WARN("(0x%08x): a proxy call failed\n", dwExceptionCode
);
520 if (FAILED(dwExceptionCode
))
521 return dwExceptionCode
;
523 return HRESULT_FROM_WIN32(dwExceptionCode
);
527 CreateProxyFromTypeInfo( LPTYPEINFO pTypeInfo
, LPUNKNOWN pUnkOuter
, REFIID riid
,
528 LPRPCPROXYBUFFER
*ppProxy
, LPVOID
*ppv
)
530 typedef INT (WINAPI
*MessageBoxA
)(HWND
,LPCSTR
,LPCSTR
,UINT
);
531 HMODULE hUser32
= LoadLibraryA("user32");
532 MessageBoxA pMessageBoxA
= (void *)GetProcAddress(hUser32
, "MessageBoxA");
534 FIXME("%p %p %s %p %p\n", pTypeInfo
, pUnkOuter
, debugstr_guid(riid
), ppProxy
, ppv
);
538 "The native implementation of OLEAUT32.DLL cannot be used "
539 "with Wine's RPCRT4.DLL. Remove OLEAUT32.DLL and try again.\n",
540 "Wine: Unimplemented CreateProxyFromTypeInfo",
548 CreateStubFromTypeInfo(ITypeInfo
*pTypeInfo
, REFIID riid
, IUnknown
*pUnkServer
,
549 IRpcStubBuffer
**ppStub
)
551 typedef INT (WINAPI
*MessageBoxA
)(HWND
,LPCSTR
,LPCSTR
,UINT
);
552 HMODULE hUser32
= LoadLibraryA("user32");
553 MessageBoxA pMessageBoxA
= (void *)GetProcAddress(hUser32
, "MessageBoxA");
555 FIXME("%p %s %p %p\n", pTypeInfo
, debugstr_guid(riid
), pUnkServer
, ppStub
);
559 "The native implementation of OLEAUT32.DLL cannot be used "
560 "with Wine's RPCRT4.DLL. Remove OLEAUT32.DLL and try again.\n",
561 "Wine: Unimplemented CreateProxyFromTypeInfo",