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