2 * NDR Serialization Services
4 * Copyright (c) 2007 Robert Shearman for CodeWeavers
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.
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.
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
32 #include "ndr_stubless.h"
34 #include "wine/debug.h"
35 #include "wine/rpcfc.h"
37 WINE_DEFAULT_DEBUG_CHANNEL(ole);
39 static inline void init_MIDL_ES_MESSAGE(MIDL_ES_MESSAGE *pEsMsg)
41 memset(pEsMsg, 0, sizeof(*pEsMsg));
42 /* even if we are unmarshalling, as we don't want pointers to be pointed
44 pEsMsg->StubMsg.IsClient = TRUE;
47 /***********************************************************************
48 * MesEncodeIncrementalHandleCreate [RPCRT4.@]
50 RPC_STATUS WINAPI MesEncodeIncrementalHandleCreate(
51 void *UserState, MIDL_ES_ALLOC AllocFn, MIDL_ES_WRITE WriteFn,
54 MIDL_ES_MESSAGE *pEsMsg;
56 TRACE("(%p, %p, %p, %p)\n", UserState, AllocFn, WriteFn, pHandle);
58 pEsMsg = HeapAlloc(GetProcessHeap(), 0, sizeof(*pEsMsg));
60 return ERROR_OUTOFMEMORY;
62 init_MIDL_ES_MESSAGE(pEsMsg);
64 pEsMsg->Operation = MES_ENCODE;
65 pEsMsg->UserState = UserState;
66 pEsMsg->HandleStyle = MES_INCREMENTAL_HANDLE;
67 pEsMsg->Alloc = AllocFn;
68 pEsMsg->Write = WriteFn;
70 *pHandle = (handle_t)pEsMsg;
75 /***********************************************************************
76 * MesDecodeIncrementalHandleCreate [RPCRT4.@]
78 RPC_STATUS WINAPI MesDecodeIncrementalHandleCreate(
79 void *UserState, MIDL_ES_READ ReadFn, handle_t *pHandle)
81 MIDL_ES_MESSAGE *pEsMsg;
83 TRACE("(%p, %p, %p)\n", UserState, ReadFn, pHandle);
85 pEsMsg = HeapAlloc(GetProcessHeap(), 0, sizeof(*pEsMsg));
87 return ERROR_OUTOFMEMORY;
89 init_MIDL_ES_MESSAGE(pEsMsg);
91 pEsMsg->Operation = MES_DECODE;
92 pEsMsg->UserState = UserState;
93 pEsMsg->HandleStyle = MES_INCREMENTAL_HANDLE;
94 pEsMsg->Read = ReadFn;
96 *pHandle = (handle_t)pEsMsg;
101 /***********************************************************************
102 * MesIncrementalHandleReset [RPCRT4.@]
104 RPC_STATUS WINAPI MesIncrementalHandleReset(
105 handle_t Handle, void *UserState, MIDL_ES_ALLOC AllocFn,
106 MIDL_ES_WRITE WriteFn, MIDL_ES_READ ReadFn, MIDL_ES_CODE Operation)
108 MIDL_ES_MESSAGE *pEsMsg = (MIDL_ES_MESSAGE *)Handle;
110 TRACE("(%p, %p, %p, %p, %p, %d)\n", Handle, UserState, AllocFn,
111 WriteFn, ReadFn, Operation);
113 init_MIDL_ES_MESSAGE(pEsMsg);
115 pEsMsg->Operation = Operation;
116 pEsMsg->UserState = UserState;
117 pEsMsg->HandleStyle = MES_INCREMENTAL_HANDLE;
118 pEsMsg->Alloc = AllocFn;
119 pEsMsg->Write = WriteFn;
120 pEsMsg->Read = ReadFn;
125 /***********************************************************************
126 * MesHandleFree [RPCRT4.@]
128 RPC_STATUS WINAPI MesHandleFree(handle_t Handle)
130 TRACE("(%p)\n", Handle);
131 HeapFree(GetProcessHeap(), 0, Handle);
135 /***********************************************************************
136 * MesEncodeFixedBufferHandleCreate [RPCRT4.@]
138 RPC_STATUS RPC_ENTRY MesEncodeFixedBufferHandleCreate(
139 char *Buffer, ULONG BufferSize, ULONG *pEncodedSize, handle_t *pHandle)
141 MIDL_ES_MESSAGE *pEsMsg;
143 TRACE("(%p, %d, %p, %p)\n", Buffer, BufferSize, pEncodedSize, pHandle);
145 pEsMsg = HeapAlloc(GetProcessHeap(), 0, sizeof(*pEsMsg));
147 return ERROR_OUTOFMEMORY;
149 init_MIDL_ES_MESSAGE(pEsMsg);
151 pEsMsg->Operation = MES_ENCODE;
152 pEsMsg->HandleStyle = MES_FIXED_BUFFER_HANDLE;
153 pEsMsg->Buffer = (unsigned char *)Buffer;
154 pEsMsg->BufferSize = BufferSize;
155 pEsMsg->pEncodedSize = pEncodedSize;
157 *pHandle = (handle_t)pEsMsg;
162 /***********************************************************************
163 * MesEncodeDynBufferHandleCreate [RPCRT4.@]
165 RPC_STATUS RPC_ENTRY MesEncodeDynBufferHandleCreate(char **ppBuffer,
166 ULONG *pEncodedSize, handle_t *pHandle)
168 FIXME("%p %p %p stub\n", ppBuffer, pEncodedSize, pHandle);
172 /***********************************************************************
173 * MesDecodeBufferHandleCreate [RPCRT4.@]
175 RPC_STATUS RPC_ENTRY MesDecodeBufferHandleCreate(
176 char *Buffer, ULONG BufferSize, handle_t *pHandle)
178 MIDL_ES_MESSAGE *pEsMsg;
180 TRACE("(%p, %d, %p)\n", Buffer, BufferSize, pHandle);
182 pEsMsg = HeapAlloc(GetProcessHeap(), 0, sizeof(*pEsMsg));
184 return ERROR_OUTOFMEMORY;
186 init_MIDL_ES_MESSAGE(pEsMsg);
188 pEsMsg->Operation = MES_DECODE;
189 pEsMsg->HandleStyle = MES_FIXED_BUFFER_HANDLE;
190 pEsMsg->Buffer = (unsigned char *)Buffer;
191 pEsMsg->BufferSize = BufferSize;
193 *pHandle = (handle_t)pEsMsg;
198 static void es_data_alloc(MIDL_ES_MESSAGE *pEsMsg, ULONG size)
200 if (pEsMsg->HandleStyle == MES_INCREMENTAL_HANDLE)
202 unsigned int tmpsize = size;
203 TRACE("%d with incremental handle\n", size);
204 pEsMsg->Alloc(pEsMsg->UserState, (char **)&pEsMsg->StubMsg.Buffer, &tmpsize);
207 ERR("not enough bytes allocated - requested %d, got %d\n", size, tmpsize);
208 RpcRaiseException(ERROR_OUTOFMEMORY);
211 else if (pEsMsg->HandleStyle == MES_FIXED_BUFFER_HANDLE)
213 TRACE("%d with fixed buffer handle\n", size);
214 pEsMsg->StubMsg.Buffer = pEsMsg->Buffer;
216 pEsMsg->StubMsg.RpcMsg->Buffer = pEsMsg->StubMsg.BufferStart = pEsMsg->StubMsg.Buffer;
219 static void es_data_read(MIDL_ES_MESSAGE *pEsMsg, ULONG size)
221 if (pEsMsg->HandleStyle == MES_INCREMENTAL_HANDLE)
223 unsigned int tmpsize = size;
224 TRACE("%d from incremental handle\n", size);
225 pEsMsg->Read(pEsMsg->UserState, (char **)&pEsMsg->StubMsg.Buffer, &tmpsize);
228 ERR("not enough bytes read - requested %d, got %d\n", size, tmpsize);
229 RpcRaiseException(ERROR_OUTOFMEMORY);
234 TRACE("%d from fixed or dynamic buffer handle\n", size);
235 /* FIXME: validate BufferSize? */
236 pEsMsg->StubMsg.Buffer = pEsMsg->Buffer;
237 pEsMsg->Buffer += size;
238 pEsMsg->BufferSize -= size;
240 pEsMsg->StubMsg.BufferLength = size;
241 pEsMsg->StubMsg.RpcMsg->Buffer = pEsMsg->StubMsg.BufferStart = pEsMsg->StubMsg.Buffer;
242 pEsMsg->StubMsg.BufferEnd = pEsMsg->StubMsg.Buffer + size;
245 static void es_data_write(MIDL_ES_MESSAGE *pEsMsg, ULONG size)
247 if (pEsMsg->HandleStyle == MES_INCREMENTAL_HANDLE)
249 TRACE("%d to incremental handle\n", size);
250 pEsMsg->Write(pEsMsg->UserState, (char *)pEsMsg->StubMsg.BufferStart, size);
254 TRACE("%d to dynamic or fixed buffer handle\n", size);
255 *pEsMsg->pEncodedSize += size;
259 static inline ULONG mes_proc_header_buffer_size(void)
261 return 4 + 2*sizeof(RPC_SYNTAX_IDENTIFIER) + 12;
264 static void mes_proc_header_marshal(MIDL_ES_MESSAGE *pEsMsg)
266 const RPC_CLIENT_INTERFACE *client_interface = pEsMsg->StubMsg.StubDesc->RpcInterfaceInformation;
267 *(WORD *)pEsMsg->StubMsg.Buffer = 0x0101;
268 pEsMsg->StubMsg.Buffer += 2;
269 *(WORD *)pEsMsg->StubMsg.Buffer = 0xcccc;
270 pEsMsg->StubMsg.Buffer += 2;
271 memcpy(pEsMsg->StubMsg.Buffer, &client_interface->TransferSyntax, sizeof(RPC_SYNTAX_IDENTIFIER));
272 pEsMsg->StubMsg.Buffer += sizeof(RPC_SYNTAX_IDENTIFIER);
273 memcpy(pEsMsg->StubMsg.Buffer, &pEsMsg->InterfaceId, sizeof(RPC_SYNTAX_IDENTIFIER));
274 pEsMsg->StubMsg.Buffer += sizeof(RPC_SYNTAX_IDENTIFIER);
275 *(DWORD *)pEsMsg->StubMsg.Buffer = pEsMsg->ProcNumber;
276 pEsMsg->StubMsg.Buffer += 4;
277 *(DWORD *)pEsMsg->StubMsg.Buffer = 0x00000001;
278 pEsMsg->StubMsg.Buffer += 4;
279 *(DWORD *)pEsMsg->StubMsg.Buffer = pEsMsg->ByteCount;
280 pEsMsg->StubMsg.Buffer += 4;
283 static void mes_proc_header_unmarshal(MIDL_ES_MESSAGE *pEsMsg)
285 const RPC_CLIENT_INTERFACE *client_interface = pEsMsg->StubMsg.StubDesc->RpcInterfaceInformation;
287 es_data_read(pEsMsg, mes_proc_header_buffer_size());
289 if (*(WORD *)pEsMsg->StubMsg.Buffer != 0x0101)
291 FIXME("unknown value at Buffer[0] 0x%04x\n", *(WORD *)pEsMsg->StubMsg.Buffer);
292 RpcRaiseException(RPC_X_WRONG_ES_VERSION);
294 pEsMsg->StubMsg.Buffer += 2;
295 if (*(WORD *)pEsMsg->StubMsg.Buffer != 0xcccc)
296 FIXME("unknown value at Buffer[2] 0x%04x\n", *(WORD *)pEsMsg->StubMsg.Buffer);
297 pEsMsg->StubMsg.Buffer += 2;
298 if (memcmp(pEsMsg->StubMsg.Buffer, &client_interface->TransferSyntax, sizeof(RPC_SYNTAX_IDENTIFIER)))
300 const RPC_SYNTAX_IDENTIFIER *AlienTransferSyntax = (const RPC_SYNTAX_IDENTIFIER *)pEsMsg->StubMsg.Buffer;
301 ERR("bad transfer syntax %s {%d.%d}\n", debugstr_guid(&AlienTransferSyntax->SyntaxGUID),
302 AlienTransferSyntax->SyntaxVersion.MajorVersion,
303 AlienTransferSyntax->SyntaxVersion.MinorVersion);
304 RpcRaiseException(RPC_S_UNSUPPORTED_TRANS_SYN);
306 pEsMsg->StubMsg.Buffer += sizeof(RPC_SYNTAX_IDENTIFIER);
307 memcpy(&pEsMsg->InterfaceId, pEsMsg->StubMsg.Buffer, sizeof(RPC_SYNTAX_IDENTIFIER));
308 pEsMsg->StubMsg.Buffer += sizeof(RPC_SYNTAX_IDENTIFIER);
309 pEsMsg->ProcNumber = *(DWORD *)pEsMsg->StubMsg.Buffer;
310 pEsMsg->StubMsg.Buffer += 4;
311 if (*(DWORD *)pEsMsg->StubMsg.Buffer != 0x00000001)
312 FIXME("unknown value 0x%08x, expected 0x00000001\n", *(DWORD *)pEsMsg->StubMsg.Buffer);
313 pEsMsg->StubMsg.Buffer += 4;
314 pEsMsg->ByteCount = *(DWORD *)pEsMsg->StubMsg.Buffer;
315 pEsMsg->StubMsg.Buffer += 4;
316 if (pEsMsg->ByteCount + mes_proc_header_buffer_size() < pEsMsg->ByteCount)
317 RpcRaiseException(RPC_S_INVALID_BOUND);
320 /***********************************************************************
321 * NdrMesProcEncodeDecode [RPCRT4.@]
323 void WINAPIV NdrMesProcEncodeDecode(handle_t Handle, const MIDL_STUB_DESC * pStubDesc, PFORMAT_STRING pFormat, ...)
325 /* pointer to start of stack where arguments start */
327 MIDL_ES_MESSAGE *pEsMsg = (MIDL_ES_MESSAGE *)Handle;
329 unsigned short stack_size;
330 /* header for procedure string */
331 const NDR_PROC_HEADER *pProcHeader = (const NDR_PROC_HEADER *)&pFormat[0];
332 /* the value to return to the client from the remote procedure */
334 const RPC_CLIENT_INTERFACE *client_interface;
336 TRACE("Handle %p, pStubDesc %p, pFormat %p, ...\n", Handle, pStubDesc, pFormat);
338 /* Later NDR language versions probably won't be backwards compatible */
339 if (pStubDesc->Version > 0x50002)
341 FIXME("Incompatible stub description version: 0x%x\n", pStubDesc->Version);
342 RpcRaiseException(RPC_X_WRONG_STUB_VERSION);
345 client_interface = pStubDesc->RpcInterfaceInformation;
346 pEsMsg->InterfaceId = client_interface->InterfaceId;
348 if (pProcHeader->Oi_flags & RPC_FC_PROC_OIF_RPCFLAGS)
350 const NDR_PROC_HEADER_RPC *pProcHeader = (const NDR_PROC_HEADER_RPC *)&pFormat[0];
351 stack_size = pProcHeader->stack_size;
352 pEsMsg->ProcNumber = pProcHeader->proc_num;
353 pFormat += sizeof(NDR_PROC_HEADER_RPC);
357 stack_size = pProcHeader->stack_size;
358 pEsMsg->ProcNumber = pProcHeader->proc_num;
359 pFormat += sizeof(NDR_PROC_HEADER);
362 if (pProcHeader->handle_type == RPC_FC_BIND_EXPLICIT)
364 switch (*pFormat) /* handle_type */
366 case RPC_FC_BIND_PRIMITIVE: /* explicit primitive */
367 pFormat += sizeof(NDR_EHD_PRIMITIVE);
369 case RPC_FC_BIND_GENERIC: /* explicit generic */
370 pFormat += sizeof(NDR_EHD_GENERIC);
372 case RPC_FC_BIND_CONTEXT: /* explicit context */
373 pFormat += sizeof(NDR_EHD_CONTEXT);
376 ERR("bad explicit binding handle type (0x%02x)\n", pProcHeader->handle_type);
377 RpcRaiseException(RPC_X_BAD_STUB_DATA);
381 TRACE("stack size: 0x%x\n", stack_size);
382 TRACE("proc num: %d\n", pEsMsg->ProcNumber);
384 memset(&rpcMsg, 0, sizeof(rpcMsg));
385 pEsMsg->StubMsg.RpcMsg = &rpcMsg;
386 pEsMsg->StubMsg.StubDesc = pStubDesc;
387 pEsMsg->StubMsg.pfnAllocate = pStubDesc->pfnAllocate;
388 pEsMsg->StubMsg.pfnFree = pStubDesc->pfnFree;
390 /* create the full pointer translation tables, if requested */
391 if (pProcHeader->Oi_flags & RPC_FC_PROC_OIF_FULLPTR)
392 pEsMsg->StubMsg.FullPtrXlatTables = NdrFullPointerXlatInit(0,XLAT_CLIENT);
394 TRACE("Oi_flags = 0x%02x\n", pProcHeader->Oi_flags);
395 TRACE("stubdesc version = 0x%x\n", pStubDesc->Version);
396 TRACE("MIDL stub version = 0x%x\n", pStubDesc->MIDLVersion);
398 /* needed for conformance of top-level objects */
400 pEsMsg->StubMsg.StackTop = *(unsigned char **)(&pFormat+1);
402 # warning Stack not retrieved for your CPU architecture
405 switch (pEsMsg->Operation)
408 pEsMsg->StubMsg.BufferLength = mes_proc_header_buffer_size();
410 client_do_args_old_format(&pEsMsg->StubMsg, pFormat, PROXY_CALCSIZE,
411 pEsMsg->StubMsg.StackTop, stack_size, (unsigned char *)&RetVal,
412 FALSE /* object_proc */, TRUE /* ignore_retval */);
414 pEsMsg->ByteCount = pEsMsg->StubMsg.BufferLength - mes_proc_header_buffer_size();
415 es_data_alloc(pEsMsg, pEsMsg->StubMsg.BufferLength);
417 mes_proc_header_marshal(pEsMsg);
419 client_do_args_old_format(&pEsMsg->StubMsg, pFormat, PROXY_MARSHAL,
420 pEsMsg->StubMsg.StackTop, stack_size, (unsigned char *)&RetVal,
421 FALSE /* object_proc */, TRUE /* ignore_retval */);
423 es_data_write(pEsMsg, pEsMsg->ByteCount);
426 mes_proc_header_unmarshal(pEsMsg);
428 es_data_read(pEsMsg, pEsMsg->ByteCount);
430 client_do_args_old_format(&pEsMsg->StubMsg, pFormat, PROXY_UNMARSHAL,
431 pEsMsg->StubMsg.StackTop, stack_size, (unsigned char *)&RetVal,
432 FALSE /* object_proc */, TRUE /* ignore_retval */);
435 RpcRaiseException(RPC_S_INTERNAL_ERROR);
438 /* free the full pointer translation tables */
439 if (pProcHeader->Oi_flags & RPC_FC_PROC_OIF_FULLPTR)
440 NdrFullPointerXlatFree(pEsMsg->StubMsg.FullPtrXlatTables);