git.oblomov.eu Git - wine/blob - dlls/rpcrt4/ndr_midl.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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  * TODO:
  21  *  - figure out whether we *really* got this right
  22  *  - check for errors and throw exceptions
  23  */
  24
  25 #include <stdio.h>
  26 #include <string.h>
  27 #include <assert.h>
  28
  29 #include "windef.h"
  30 #include "winbase.h"
  31 #include "winerror.h"
  32 #include "winreg.h"
  33
  34 #include "objbase.h"
  35
  36 #include "rpcproxy.h"
  37
  38 #include "wine/debug.h"
  39
  40 #include "cpsf.h"
  41 #include "ndr_misc.h"
  42 #include "rpcndr.h"
  43
  44 WINE_DEFAULT_DEBUG_CHANNEL(ole);
  45
  46 /***********************************************************************
  47  *           NdrProxyInitialize [RPCRT4.@]
  48  */
  49 void WINAPI NdrProxyInitialize(void *This,
  50                               PRPC_MESSAGE pRpcMsg,
  51                               PMIDL_STUB_MESSAGE pStubMsg,
  52                               PMIDL_STUB_DESC pStubDescriptor,
  53                               unsigned int ProcNum)
  54 {
  55   HRESULT hr;
  56
  57   TRACE("(%p,%p,%p,%p,%d)\n", This, pRpcMsg, pStubMsg, pStubDescriptor, ProcNum);
  58   NdrClientInitializeNew(pRpcMsg, pStubMsg, pStubDescriptor, ProcNum);
  59   if (This) StdProxy_GetChannel(This, &pStubMsg->pRpcChannelBuffer);
  60   if (pStubMsg->pRpcChannelBuffer) {
  61     hr = IRpcChannelBuffer_GetDestCtx(pStubMsg->pRpcChannelBuffer,
  62                                      &pStubMsg->dwDestContext,
  63                                      &pStubMsg->pvDestContext);
  64   }
  65   TRACE("channel=%p\n", pStubMsg->pRpcChannelBuffer);
  66 }
  67
  68 /***********************************************************************
  69  *           NdrProxyGetBuffer [RPCRT4.@]
  70  */
  71 void WINAPI NdrProxyGetBuffer(void *This,
  72                              PMIDL_STUB_MESSAGE pStubMsg)
  73 {
  74   HRESULT hr;
  75   const IID *riid = NULL;
  76
  77   TRACE("(%p,%p)\n", This, pStubMsg);
  78   pStubMsg->RpcMsg->BufferLength = pStubMsg->BufferLength;
  79   pStubMsg->dwStubPhase = PROXY_GETBUFFER;
  80   hr = StdProxy_GetIID(This, &riid);
  81   hr = IRpcChannelBuffer_GetBuffer(pStubMsg->pRpcChannelBuffer,
  82                                   (RPCOLEMESSAGE*)pStubMsg->RpcMsg,
  83                                   riid);
  84   pStubMsg->BufferStart = pStubMsg->RpcMsg->Buffer;
  85   pStubMsg->BufferEnd = pStubMsg->BufferStart + pStubMsg->BufferLength;
  86   pStubMsg->Buffer = pStubMsg->BufferStart;
  87   pStubMsg->dwStubPhase = PROXY_MARSHAL;
  88 }
  89
  90 /***********************************************************************
  91  *           NdrProxySendReceive [RPCRT4.@]
  92  */
  93 void WINAPI NdrProxySendReceive(void *This,
  94                                PMIDL_STUB_MESSAGE pStubMsg)
  95 {
  96   ULONG Status = 0;
  97   HRESULT hr;
  98
  99   TRACE("(%p,%p)\n", This, pStubMsg);
 100   pStubMsg->dwStubPhase = PROXY_SENDRECEIVE;
 101   hr = IRpcChannelBuffer_SendReceive(pStubMsg->pRpcChannelBuffer,
 102                                     (RPCOLEMESSAGE*)pStubMsg->RpcMsg,
 103                                     &Status);
 104   pStubMsg->dwStubPhase = PROXY_UNMARSHAL;
 105   pStubMsg->BufferLength = pStubMsg->RpcMsg->BufferLength;
 106   pStubMsg->BufferStart = pStubMsg->RpcMsg->Buffer;
 107   pStubMsg->BufferEnd = pStubMsg->BufferStart + pStubMsg->BufferLength;
 108   pStubMsg->Buffer = pStubMsg->BufferStart;
 109 }
 110
 111 /***********************************************************************
 112  *           NdrProxyFreeBuffer [RPCRT4.@]
 113  */
 114 void WINAPI NdrProxyFreeBuffer(void *This,
 115                               PMIDL_STUB_MESSAGE pStubMsg)
 116 {
 117   HRESULT hr;
 118
 119   TRACE("(%p,%p)\n", This, pStubMsg);
 120   hr = IRpcChannelBuffer_FreeBuffer(pStubMsg->pRpcChannelBuffer,
 121                                    (RPCOLEMESSAGE*)pStubMsg->RpcMsg);
 122 }
 123
 124 /***********************************************************************
 125  *           NdrProxyErrorHandler [RPCRT4.@]
 126  */
 127 HRESULT WINAPI NdrProxyErrorHandler(DWORD dwExceptionCode)
 128 {
 129   FIXME("(0x%08lx): semi-stub\n", dwExceptionCode);
 130   return MAKE_HRESULT(SEVERITY_ERROR, FACILITY_RPC, RPC_S_CALL_FAILED);
 131 }
 132
 133 /***********************************************************************
 134  *           NdrStubInitialize [RPCRT4.@]
 135  */
 136 void WINAPI NdrStubInitialize(PRPC_MESSAGE pRpcMsg,
 137                              PMIDL_STUB_MESSAGE pStubMsg,
 138                              PMIDL_STUB_DESC pStubDescriptor,
 139                              LPRPCCHANNELBUFFER pRpcChannelBuffer)
 140 {
 141   TRACE("(%p,%p,%p,%p)\n", pRpcMsg, pStubMsg, pStubDescriptor, pRpcChannelBuffer);
 142   NdrServerInitializeNew(pRpcMsg, pStubMsg, pStubDescriptor);
 143   pStubMsg->pRpcChannelBuffer = pRpcChannelBuffer;
 144 }
 145
 146 /***********************************************************************
 147  *           NdrStubGetBuffer [RPCRT4.@]
 148  */
 149 void WINAPI NdrStubGetBuffer(LPRPCSTUBBUFFER This,
 150                             LPRPCCHANNELBUFFER pRpcChannelBuffer,
 151                             PMIDL_STUB_MESSAGE pStubMsg)
 152 {
 153   TRACE("(%p,%p)\n", This, pStubMsg);
 154   pStubMsg->pRpcChannelBuffer = pRpcChannelBuffer;
 155   pStubMsg->RpcMsg->BufferLength = pStubMsg->BufferLength;
 156   I_RpcGetBuffer(pStubMsg->RpcMsg); /* ? */
 157   pStubMsg->BufferStart = pStubMsg->RpcMsg->Buffer;
 158   pStubMsg->BufferEnd = pStubMsg->BufferStart + pStubMsg->BufferLength;
 159   pStubMsg->Buffer = pStubMsg->BufferStart;
 160 }
 161
 162 /************************************************************************
 163  *             NdrClientInitializeNew [RPCRT4.@]
 164  */
 165 void WINAPI NdrClientInitializeNew( PRPC_MESSAGE pRpcMessage, PMIDL_STUB_MESSAGE pStubMsg,
 166                                     PMIDL_STUB_DESC pStubDesc, unsigned int ProcNum )
 167 {
 168   TRACE("(pRpcMessage == ^%p, pStubMsg == ^%p, pStubDesc == ^%p, ProcNum == %d)\n",
 169     pRpcMessage, pStubMsg, pStubDesc, ProcNum);
 170
 171   assert( pRpcMessage && pStubMsg && pStubDesc );
 172
 173   memset(pRpcMessage, 0, sizeof(RPC_MESSAGE));
 174
 175   /* not everyone allocates stack space for w2kReserved */
 176   memset(pStubMsg, 0, sizeof(*pStubMsg) - sizeof(pStubMsg->w2kReserved));
 177
 178   pStubMsg->ReuseBuffer = FALSE;
 179   pStubMsg->IsClient = TRUE;
 180   pStubMsg->StubDesc = pStubDesc;
 181   pStubMsg->pfnAllocate = pStubDesc->pfnAllocate;
 182   pStubMsg->pfnFree = pStubDesc->pfnFree;
 183   pStubMsg->RpcMsg = pRpcMessage;
 184
 185   pRpcMessage->ProcNum = ProcNum;
 186   pRpcMessage->RpcInterfaceInformation = pStubDesc->RpcInterfaceInformation;
 187 }
 188
 189 /***********************************************************************
 190  *             NdrServerInitializeNew [RPCRT4.@]
 191  */
 192 unsigned char* WINAPI NdrServerInitializeNew( PRPC_MESSAGE pRpcMsg, PMIDL_STUB_MESSAGE pStubMsg,
 193                                               PMIDL_STUB_DESC pStubDesc )
 194 {
 195   TRACE("(pRpcMsg == ^%p, pStubMsg == ^%p, pStubDesc == ^%p)\n", pRpcMsg, pStubMsg, pStubDesc);
 196
 197   assert( pRpcMsg && pStubMsg && pStubDesc );
 198
 199   /* not everyone allocates stack space for w2kReserved */
 200   memset(pStubMsg, 0, sizeof(*pStubMsg) - sizeof(pStubMsg->w2kReserved));
 201
 202   pStubMsg->ReuseBuffer = TRUE;
 203   pStubMsg->IsClient = FALSE;
 204   pStubMsg->StubDesc = pStubDesc;
 205   pStubMsg->pfnAllocate = pStubDesc->pfnAllocate;
 206   pStubMsg->pfnFree = pStubDesc->pfnFree;
 207   pStubMsg->RpcMsg = pRpcMsg;
 208   pStubMsg->Buffer = pStubMsg->BufferStart = pRpcMsg->Buffer;
 209   pStubMsg->BufferLength = pRpcMsg->BufferLength;
 210   pStubMsg->BufferEnd = pStubMsg->Buffer + pStubMsg->BufferLength;
 211
 212   /* FIXME: determine the proper return value */
 213   return NULL;
 214 }
 215
 216 /***********************************************************************
 217  *           NdrGetBuffer [RPCRT4.@]
 218  */
 219 unsigned char *WINAPI NdrGetBuffer(MIDL_STUB_MESSAGE *stubmsg, unsigned long buflen, RPC_BINDING_HANDLE handle)
 220 {
 221   TRACE("(stubmsg == ^%p, buflen == %lu, handle == %p): wild guess.\n", stubmsg, buflen, handle);
 222
 223   assert( stubmsg && stubmsg->RpcMsg );
 224
 225   /* I guess this is our chance to put the binding handle into the RPC_MESSAGE */
 226   stubmsg->RpcMsg->Handle = handle;
 227
 228   stubmsg->RpcMsg->BufferLength = buflen;
 229   if (I_RpcGetBuffer(stubmsg->RpcMsg) != S_OK)
 230     return NULL;
 231
 232   stubmsg->Buffer = stubmsg->BufferStart = stubmsg->RpcMsg->Buffer;
 233   stubmsg->BufferLength = stubmsg->RpcMsg->BufferLength;
 234   stubmsg->BufferEnd = stubmsg->Buffer + stubmsg->BufferLength;
 235   return (stubmsg->Buffer = (unsigned char *)stubmsg->RpcMsg->Buffer);
 236 }
 237 /***********************************************************************
 238  *           NdrFreeBuffer [RPCRT4.@]
 239  */
 240 void WINAPI NdrFreeBuffer(MIDL_STUB_MESSAGE *pStubMsg)
 241 {
 242   TRACE("(pStubMsg == ^%p): wild guess.\n", pStubMsg);
 243   I_RpcFreeBuffer(pStubMsg->RpcMsg);
 244   pStubMsg->BufferLength = 0;
 245   pStubMsg->Buffer = pStubMsg->BufferEnd = (unsigned char *)(pStubMsg->RpcMsg->Buffer = NULL);
 246 }
 247
 248 /************************************************************************
 249  *           NdrSendReceive [RPCRT4.@]
 250  */
 251 unsigned char *WINAPI NdrSendReceive( MIDL_STUB_MESSAGE *stubmsg, unsigned char *buffer  )
 252 {
 253   TRACE("(stubmsg == ^%p, buffer == ^%p)\n", stubmsg, buffer);
 254
 255   /* FIXME: how to handle errors? (raise exception?) */
 256   if (!stubmsg) {
 257     ERR("NULL stub message.  No action taken.\n");
 258     return NULL;
 259   }
 260   if (!stubmsg->RpcMsg) {
 261     ERR("RPC Message not present in stub message.  No action taken.\n");
 262     return NULL;
 263   }
 264   if (stubmsg->RpcMsg->Buffer != buffer) {
 265     ERR("Ambiguous buffer doesn't match rpc message buffer.  No action taken.\n");
 266     return NULL;
 267   }
 268
 269   /* not sure where MS does this; for now I'll stick it here */
 270   stubmsg->RpcMsg->DataRepresentation = NDR_LOCAL_DATA_REPRESENTATION;
 271
 272   if (I_RpcSendReceive(stubmsg->RpcMsg) != RPC_S_OK) {
 273     WARN("I_RpcSendReceive did not return success.\n");
 274   }
 275
 276   /* FIXME: is this the right return value? */
 277   return NULL;
 278 }