dlls/rpcrt4/ndr_clientserver.c

   1 /*
   2  * MIDL proxy/stub stuff
   3  *
   4  * Copyright 2002 Ove Kåven, TransGaming Technologies
   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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  *
  20  * TODO:
  21  *  - figure out whether we *really* got this right
  22  *  - check for errors and throw exceptions
  23  */
  24
  25 #include <stdarg.h>
  26 #include <stdio.h>
  27 #include <string.h>
  28 #include <assert.h>
  29
  30 #define COBJMACROS
  31
  32 #include "windef.h"
  33 #include "winbase.h"
  34 #include "winerror.h"
  35 #include "winreg.h"
  36
  37 #include "objbase.h"
  38
  39 #include "rpcproxy.h"
  40
  41 #include "wine/debug.h"
  42
  43 #include "ndr_misc.h"
  44 #include "rpcndr.h"
  45
  46 WINE_DEFAULT_DEBUG_CHANNEL(rpc);
  47
  48 /************************************************************************
  49  *             NdrClientInitializeNew [RPCRT4.@]
  50  */
  51 void WINAPI NdrClientInitializeNew( PRPC_MESSAGE pRpcMessage, PMIDL_STUB_MESSAGE pStubMsg,
  52                                     PMIDL_STUB_DESC pStubDesc, unsigned int ProcNum )
  53 {
  54   TRACE("(pRpcMessage == ^%p, pStubMsg == ^%p, pStubDesc == ^%p, ProcNum == %d)\n",
  55     pRpcMessage, pStubMsg, pStubDesc, ProcNum);
  56
  57   assert( pRpcMessage && pStubMsg && pStubDesc );
  58
  59   pRpcMessage->Handle = NULL;
  60   pRpcMessage->ProcNum = ProcNum;
  61   pRpcMessage->RpcInterfaceInformation = pStubDesc->RpcInterfaceInformation;
  62   pRpcMessage->RpcFlags = 0;
  63   pRpcMessage->DataRepresentation = NDR_LOCAL_DATA_REPRESENTATION;
  64
  65   pStubMsg->RpcMsg = pRpcMessage;
  66   pStubMsg->BufferStart = NULL;
  67   pStubMsg->BufferEnd = NULL;
  68   pStubMsg->BufferLength = 0;
  69   pStubMsg->IsClient = TRUE;
  70   pStubMsg->ReuseBuffer = FALSE;
  71   pStubMsg->pAllocAllNodesContext = NULL;
  72   pStubMsg->pPointerQueueState = NULL;
  73   pStubMsg->IgnoreEmbeddedPointers = 0;
  74   pStubMsg->PointerBufferMark = NULL;
  75   pStubMsg->fBufferValid = 0;
  76   pStubMsg->uFlags = 0;
  77   pStubMsg->pfnAllocate = pStubDesc->pfnAllocate;
  78   pStubMsg->pfnFree = pStubDesc->pfnFree;
  79   pStubMsg->StackTop = NULL;
  80   pStubMsg->StubDesc = pStubDesc;
  81   pStubMsg->FullPtrRefId = 0;
  82   pStubMsg->PointerLength = 0;
  83   pStubMsg->fInDontFree = 0;
  84   pStubMsg->fDontCallFreeInst = 0;
  85   pStubMsg->fInOnlyParam = 0;
  86   pStubMsg->fHasReturn = 0;
  87   pStubMsg->fHasExtensions = 0;
  88   pStubMsg->fHasNewCorrDesc = 0;
  89   pStubMsg->fUnused = 0;
  90   pStubMsg->dwDestContext = MSHCTX_DIFFERENTMACHINE;
  91   pStubMsg->pvDestContext = NULL;
  92   pStubMsg->pRpcChannelBuffer = NULL;
  93   pStubMsg->pArrayInfo = NULL;
  94   pStubMsg->dwStubPhase = 0;
  95   /* FIXME: LowStackMark */
  96   pStubMsg->pAsyncMsg = NULL;
  97   pStubMsg->pCorrInfo = NULL;
  98   pStubMsg->pCorrMemory = NULL;
  99   pStubMsg->pMemoryList = NULL;
 100 }
 101
 102 /***********************************************************************
 103  *             NdrServerInitializeNew [RPCRT4.@]
 104  */
 105 unsigned char* WINAPI NdrServerInitializeNew( PRPC_MESSAGE pRpcMsg, PMIDL_STUB_MESSAGE pStubMsg,
 106                                               PMIDL_STUB_DESC pStubDesc )
 107 {
 108   TRACE("(pRpcMsg == ^%p, pStubMsg == ^%p, pStubDesc == ^%p)\n", pRpcMsg, pStubMsg, pStubDesc);
 109
 110   assert( pRpcMsg && pStubMsg && pStubDesc );
 111
 112   /* not everyone allocates stack space for w2kReserved */
 113   memset(pStubMsg, 0, FIELD_OFFSET(MIDL_STUB_MESSAGE,pCSInfo));
 114
 115   pStubMsg->ReuseBuffer = TRUE;
 116   pStubMsg->IsClient = FALSE;
 117   pStubMsg->StubDesc = pStubDesc;
 118   pStubMsg->pfnAllocate = pStubDesc->pfnAllocate;
 119   pStubMsg->pfnFree = pStubDesc->pfnFree;
 120   pStubMsg->RpcMsg = pRpcMsg;
 121   pStubMsg->Buffer = pStubMsg->BufferStart = pRpcMsg->Buffer;
 122   pStubMsg->BufferLength = pRpcMsg->BufferLength;
 123   pStubMsg->BufferEnd = pStubMsg->Buffer + pStubMsg->BufferLength;
 124
 125   /* FIXME: determine the proper return value */
 126   return NULL;
 127 }
 128
 129 /***********************************************************************
 130  *           NdrGetBuffer [RPCRT4.@]
 131  */
 132 unsigned char *WINAPI NdrGetBuffer(MIDL_STUB_MESSAGE *stubmsg, ULONG buflen, RPC_BINDING_HANDLE handle)
 133 {
 134   TRACE("(stubmsg == ^%p, buflen == %u, handle == %p): wild guess.\n", stubmsg, buflen, handle);
 135
 136   assert( stubmsg && stubmsg->RpcMsg );
 137
 138   /* I guess this is our chance to put the binding handle into the RPC_MESSAGE */
 139   stubmsg->RpcMsg->Handle = handle;
 140
 141   stubmsg->RpcMsg->BufferLength = buflen;
 142   if (I_RpcGetBuffer(stubmsg->RpcMsg) != S_OK)
 143     return NULL;
 144
 145   stubmsg->Buffer = stubmsg->BufferStart = stubmsg->RpcMsg->Buffer;
 146   stubmsg->BufferLength = stubmsg->RpcMsg->BufferLength;
 147   stubmsg->BufferEnd = stubmsg->Buffer + stubmsg->BufferLength;
 148   return (stubmsg->Buffer = (unsigned char *)stubmsg->RpcMsg->Buffer);
 149 }
 150 /***********************************************************************
 151  *           NdrFreeBuffer [RPCRT4.@]
 152  */
 153 void WINAPI NdrFreeBuffer(MIDL_STUB_MESSAGE *pStubMsg)
 154 {
 155   TRACE("(pStubMsg == ^%p): wild guess.\n", pStubMsg);
 156   I_RpcFreeBuffer(pStubMsg->RpcMsg);
 157   pStubMsg->BufferLength = 0;
 158   pStubMsg->Buffer = pStubMsg->BufferEnd = (unsigned char *)(pStubMsg->RpcMsg->Buffer = NULL);
 159 }
 160
 161 /************************************************************************
 162  *           NdrSendReceive [RPCRT4.@]
 163  */
 164 unsigned char *WINAPI NdrSendReceive( MIDL_STUB_MESSAGE *stubmsg, unsigned char *buffer  )
 165 {
 166   RPC_STATUS status;
 167
 168   TRACE("(stubmsg == ^%p, buffer == ^%p)\n", stubmsg, buffer);
 169
 170   /* FIXME: how to handle errors? (raise exception?) */
 171   if (!stubmsg) {
 172     ERR("NULL stub message.  No action taken.\n");
 173     return NULL;
 174   }
 175   if (!stubmsg->RpcMsg) {
 176     ERR("RPC Message not present in stub message.  No action taken.\n");
 177     return NULL;
 178   }
 179
 180   stubmsg->RpcMsg->BufferLength = buffer - (unsigned char *)stubmsg->RpcMsg->Buffer;
 181   status = I_RpcSendReceive(stubmsg->RpcMsg);
 182   if (status != RPC_S_OK)
 183     RpcRaiseException(status);
 184
 185   stubmsg->BufferLength = stubmsg->RpcMsg->BufferLength;
 186   stubmsg->BufferStart = stubmsg->RpcMsg->Buffer;
 187   stubmsg->BufferEnd = stubmsg->BufferStart + stubmsg->BufferLength;
 188   stubmsg->Buffer = stubmsg->BufferStart;
 189
 190   /* FIXME: is this the right return value? */
 191   return NULL;
 192 }
 193
 194 /************************************************************************
 195  *           NdrMapCommAndFaultStatus [RPCRT4.@]
 196  */
 197 RPC_STATUS RPC_ENTRY NdrMapCommAndFaultStatus( PMIDL_STUB_MESSAGE pStubMsg,
 198                                                ULONG *pCommStatus,
 199                                                ULONG *pFaultStatus,
 200                                                RPC_STATUS Status )
 201 {
 202     FIXME("(%p, %p, %p, %ld): stub\n", pStubMsg, pCommStatus, pFaultStatus, Status);
 203
 204     *pCommStatus = 0;
 205     *pFaultStatus = 0;
 206
 207     return RPC_S_OK;
 208 }