349 lines
11 KiB
C
349 lines
11 KiB
C
/*
|
|
* OLE32 callouts, COM interface marshalling
|
|
*
|
|
* Copyright 2001 Ove Kåven, TransGaming Technologies
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
* TODO:
|
|
* - figure out whether we *really* got this right
|
|
* - check for errors and throw exceptions
|
|
* - what are the marshalling functions supposed to return?
|
|
* - finish RpcStream_Vtbl
|
|
*/
|
|
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#define NONAMELESSUNION
|
|
#define NONAMELESSSTRUCT
|
|
#include "windef.h"
|
|
#include "winbase.h"
|
|
#include "winerror.h"
|
|
#include "winreg.h"
|
|
|
|
#include "objbase.h"
|
|
|
|
#include "ndr_misc.h"
|
|
#include "rpcndr.h"
|
|
#include "wine/rpcfc.h"
|
|
|
|
#include "wine/debug.h"
|
|
|
|
WINE_DEFAULT_DEBUG_CHANNEL(ole);
|
|
|
|
static HMODULE hOLE;
|
|
|
|
static HRESULT (WINAPI *COM_GetMarshalSizeMax)(ULONG *,REFIID,LPUNKNOWN,DWORD,LPVOID,DWORD);
|
|
static HRESULT (WINAPI *COM_MarshalInterface)(LPSTREAM,REFIID,LPUNKNOWN,DWORD,LPVOID,DWORD);
|
|
static HRESULT (WINAPI *COM_UnmarshalInterface)(LPSTREAM,REFIID,LPVOID*);
|
|
static HRESULT (WINAPI *COM_ReleaseMarshalData)(LPSTREAM);
|
|
static HRESULT (WINAPI *COM_GetClassObject)(REFCLSID,DWORD,COSERVERINFO *,REFIID,LPVOID *);
|
|
static HRESULT (WINAPI *COM_GetPSClsid)(REFIID,CLSID *);
|
|
static LPVOID (WINAPI *COM_MemAlloc)(ULONG);
|
|
static void (WINAPI *COM_MemFree)(LPVOID);
|
|
|
|
static HMODULE LoadCOM(void)
|
|
{
|
|
if (hOLE) return hOLE;
|
|
hOLE = LoadLibraryA("OLE32.DLL");
|
|
if (!hOLE) return 0;
|
|
COM_GetMarshalSizeMax = (LPVOID)GetProcAddress(hOLE, "CoGetMarshalSizeMax");
|
|
COM_MarshalInterface = (LPVOID)GetProcAddress(hOLE, "CoMarshalInterface");
|
|
COM_UnmarshalInterface = (LPVOID)GetProcAddress(hOLE, "CoUnmarshalInterface");
|
|
COM_ReleaseMarshalData = (LPVOID)GetProcAddress(hOLE, "CoReleaseMarshalData");
|
|
COM_GetClassObject = (LPVOID)GetProcAddress(hOLE, "CoGetClassObject");
|
|
COM_GetPSClsid = (LPVOID)GetProcAddress(hOLE, "CoGetPSClsid");
|
|
COM_MemAlloc = (LPVOID)GetProcAddress(hOLE, "CoTaskMemAlloc");
|
|
COM_MemFree = (LPVOID)GetProcAddress(hOLE, "CoTaskMemFree");
|
|
return hOLE;
|
|
}
|
|
|
|
/* CoMarshalInterface/CoUnmarshalInterface works on streams,
|
|
* so implement a simple stream on top of the RPC buffer
|
|
* (which also implements the MInterfacePointer structure) */
|
|
typedef struct RpcStreamImpl
|
|
{
|
|
IStreamVtbl *lpVtbl;
|
|
DWORD RefCount;
|
|
PMIDL_STUB_MESSAGE pMsg;
|
|
LPDWORD size;
|
|
char *data;
|
|
DWORD pos;
|
|
} RpcStreamImpl;
|
|
|
|
static HRESULT WINAPI RpcStream_QueryInterface(LPSTREAM iface,
|
|
REFIID riid,
|
|
LPVOID *obj)
|
|
{
|
|
ICOM_THIS(RpcStreamImpl, iface);
|
|
if (IsEqualGUID(&IID_IUnknown, riid) ||
|
|
IsEqualGUID(&IID_ISequentialStream, riid) ||
|
|
IsEqualGUID(&IID_IStream, riid)) {
|
|
*obj = This;
|
|
This->RefCount++;
|
|
return S_OK;
|
|
}
|
|
return E_NOINTERFACE;
|
|
}
|
|
|
|
static ULONG WINAPI RpcStream_AddRef(LPSTREAM iface)
|
|
{
|
|
ICOM_THIS(RpcStreamImpl, iface);
|
|
return ++(This->RefCount);
|
|
}
|
|
|
|
static ULONG WINAPI RpcStream_Release(LPSTREAM iface)
|
|
{
|
|
ICOM_THIS(RpcStreamImpl, iface);
|
|
if (!--(This->RefCount)) {
|
|
TRACE("size=%ld\n", *This->size);
|
|
This->pMsg->Buffer = This->data + *This->size;
|
|
HeapFree(GetProcessHeap(),0,This);
|
|
return 0;
|
|
}
|
|
return This->RefCount;
|
|
}
|
|
|
|
static HRESULT WINAPI RpcStream_Read(LPSTREAM iface,
|
|
void *pv,
|
|
ULONG cb,
|
|
ULONG *pcbRead)
|
|
{
|
|
ICOM_THIS(RpcStreamImpl, iface);
|
|
if (This->pos + cb > *This->size) cb = *This->size - This->pos;
|
|
if (cb) {
|
|
memcpy(pv, This->data + This->pos, cb);
|
|
This->pos += cb;
|
|
}
|
|
if (pcbRead) *pcbRead = cb;
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI RpcStream_Write(LPSTREAM iface,
|
|
const void *pv,
|
|
ULONG cb,
|
|
ULONG *pcbWritten)
|
|
{
|
|
ICOM_THIS(RpcStreamImpl, iface);
|
|
memcpy(This->data + This->pos, pv, cb);
|
|
This->pos += cb;
|
|
if (This->pos > *This->size) *This->size = This->pos;
|
|
if (pcbWritten) *pcbWritten = cb;
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI RpcStream_Seek(LPSTREAM iface,
|
|
LARGE_INTEGER move,
|
|
DWORD origin,
|
|
ULARGE_INTEGER *newPos)
|
|
{
|
|
ICOM_THIS(RpcStreamImpl, iface);
|
|
switch (origin) {
|
|
case STREAM_SEEK_SET:
|
|
This->pos = move.u.LowPart;
|
|
break;
|
|
case STREAM_SEEK_CUR:
|
|
This->pos = This->pos + move.u.LowPart;
|
|
break;
|
|
case STREAM_SEEK_END:
|
|
This->pos = *This->size + move.u.LowPart;
|
|
break;
|
|
default:
|
|
return STG_E_INVALIDFUNCTION;
|
|
}
|
|
if (newPos) {
|
|
newPos->u.LowPart = This->pos;
|
|
newPos->u.HighPart = 0;
|
|
}
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI RpcStream_SetSize(LPSTREAM iface,
|
|
ULARGE_INTEGER newSize)
|
|
{
|
|
ICOM_THIS(RpcStreamImpl, iface);
|
|
*This->size = newSize.u.LowPart;
|
|
return S_OK;
|
|
}
|
|
|
|
static IStreamVtbl RpcStream_Vtbl =
|
|
{
|
|
RpcStream_QueryInterface,
|
|
RpcStream_AddRef,
|
|
RpcStream_Release,
|
|
RpcStream_Read,
|
|
RpcStream_Write,
|
|
RpcStream_Seek,
|
|
RpcStream_SetSize,
|
|
NULL, /* CopyTo */
|
|
NULL, /* Commit */
|
|
NULL, /* Revert */
|
|
NULL, /* LockRegion */
|
|
NULL, /* UnlockRegion */
|
|
NULL, /* Stat */
|
|
NULL /* Clone */
|
|
};
|
|
|
|
static LPSTREAM RpcStream_Create(PMIDL_STUB_MESSAGE pStubMsg, BOOL init)
|
|
{
|
|
RpcStreamImpl *This;
|
|
This = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(RpcStreamImpl));
|
|
if (!This) return NULL;
|
|
This->lpVtbl = &RpcStream_Vtbl;
|
|
This->RefCount = 1;
|
|
This->pMsg = pStubMsg;
|
|
This->size = (LPDWORD)pStubMsg->Buffer;
|
|
This->data = (char*)(This->size + 1);
|
|
This->pos = 0;
|
|
if (init) *This->size = 0;
|
|
TRACE("init size=%ld\n", *This->size);
|
|
return (LPSTREAM)This;
|
|
}
|
|
|
|
const IID* get_ip_iid(PMIDL_STUB_MESSAGE pStubMsg, unsigned char *pMemory, PFORMAT_STRING pFormat)
|
|
{
|
|
const IID *riid;
|
|
if (!pFormat) return &IID_IUnknown;
|
|
TRACE("format=%02x %02x\n", pFormat[0], pFormat[1]);
|
|
if (pFormat[0] != RPC_FC_IP) FIXME("format=%d\n", pFormat[0]);
|
|
if (pFormat[1] == RPC_FC_CONSTANT_IID) {
|
|
riid = (const IID *)&pFormat[2];
|
|
} else {
|
|
ComputeConformance(pStubMsg, pMemory, pFormat+2, 0);
|
|
riid = (const IID *)pStubMsg->MaxCount;
|
|
}
|
|
if (!riid) riid = &IID_IUnknown;
|
|
TRACE("got %s\n", debugstr_guid(riid));
|
|
return riid;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* NdrInterfacePointerMarshall [RPCRT4.@]
|
|
*/
|
|
unsigned char * WINAPI NdrInterfacePointerMarshall(PMIDL_STUB_MESSAGE pStubMsg,
|
|
unsigned char *pMemory,
|
|
PFORMAT_STRING pFormat)
|
|
{
|
|
const IID *riid = get_ip_iid(pStubMsg, pMemory, pFormat);
|
|
LPSTREAM stream;
|
|
HRESULT hr;
|
|
|
|
TRACE("(%p,%p,%p)\n", pStubMsg, pMemory, pFormat);
|
|
pStubMsg->MaxCount = 0;
|
|
if (!LoadCOM()) return NULL;
|
|
stream = RpcStream_Create(pStubMsg, TRUE);
|
|
hr = COM_MarshalInterface(stream, riid, (LPUNKNOWN)pMemory,
|
|
pStubMsg->dwDestContext, pStubMsg->pvDestContext,
|
|
MSHLFLAGS_NORMAL);
|
|
IStream_Release(stream);
|
|
return NULL;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* NdrInterfacePointerUnmarshall [RPCRT4.@]
|
|
*/
|
|
unsigned char * WINAPI NdrInterfacePointerUnmarshall(PMIDL_STUB_MESSAGE pStubMsg,
|
|
unsigned char **ppMemory,
|
|
PFORMAT_STRING pFormat,
|
|
unsigned char fMustAlloc)
|
|
{
|
|
LPSTREAM stream;
|
|
HRESULT hr;
|
|
|
|
TRACE("(%p,%p,%p,%d)\n", pStubMsg, ppMemory, pFormat, fMustAlloc);
|
|
if (!LoadCOM()) return NULL;
|
|
*(LPVOID*)ppMemory = NULL;
|
|
stream = RpcStream_Create(pStubMsg, FALSE);
|
|
hr = COM_UnmarshalInterface(stream, &IID_NULL, (LPVOID*)ppMemory);
|
|
IStream_Release(stream);
|
|
return NULL;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* NdrInterfacePointerBufferSize [RPCRT4.@]
|
|
*/
|
|
void WINAPI NdrInterfacePointerBufferSize(PMIDL_STUB_MESSAGE pStubMsg,
|
|
unsigned char *pMemory,
|
|
PFORMAT_STRING pFormat)
|
|
{
|
|
const IID *riid = get_ip_iid(pStubMsg, pMemory, pFormat);
|
|
ULONG size = 0;
|
|
HRESULT hr;
|
|
|
|
TRACE("(%p,%p,%p)\n", pStubMsg, pMemory, pFormat);
|
|
if (!LoadCOM()) return;
|
|
hr = COM_GetMarshalSizeMax(&size, riid, (LPUNKNOWN)pMemory,
|
|
pStubMsg->dwDestContext, pStubMsg->pvDestContext,
|
|
MSHLFLAGS_NORMAL);
|
|
TRACE("size=%ld\n", size);
|
|
pStubMsg->BufferLength += sizeof(DWORD) + size;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* NdrInterfacePointerMemorySize [RPCRT4.@]
|
|
*/
|
|
unsigned long WINAPI NdrInterfacePointerMemorySize(PMIDL_STUB_MESSAGE pStubMsg,
|
|
PFORMAT_STRING pFormat)
|
|
{
|
|
FIXME("(%p,%p): stub\n", pStubMsg, pFormat);
|
|
return 0;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* NdrInterfacePointerFree [RPCRT4.@]
|
|
*/
|
|
void WINAPI NdrInterfacePointerFree(PMIDL_STUB_MESSAGE pStubMsg,
|
|
unsigned char *pMemory,
|
|
PFORMAT_STRING pFormat)
|
|
{
|
|
LPUNKNOWN pUnk = (LPUNKNOWN)pMemory;
|
|
TRACE("(%p,%p,%p)\n", pStubMsg, pMemory, pFormat);
|
|
if (pUnk) IUnknown_Release(pUnk);
|
|
}
|
|
|
|
/***********************************************************************
|
|
* NdrOleAllocate [RPCRT4.@]
|
|
*/
|
|
void * WINAPI NdrOleAllocate(size_t Size)
|
|
{
|
|
if (!LoadCOM()) return NULL;
|
|
return COM_MemAlloc(Size);
|
|
}
|
|
|
|
/***********************************************************************
|
|
* NdrOleFree [RPCRT4.@]
|
|
*/
|
|
void WINAPI NdrOleFree(void *NodeToFree)
|
|
{
|
|
if (!LoadCOM()) return;
|
|
COM_MemFree(NodeToFree);
|
|
}
|
|
|
|
/* internal */
|
|
HRESULT RPCRT4_GetPSFactory(REFIID riid, LPPSFACTORYBUFFER *pPS)
|
|
{
|
|
HRESULT hr;
|
|
CLSID clsid;
|
|
|
|
if (!LoadCOM()) return RPC_E_UNEXPECTED;
|
|
hr = COM_GetPSClsid(riid, &clsid);
|
|
if (FAILED(hr)) return hr;
|
|
hr = COM_GetClassObject(&clsid, CLSCTX_INPROC_SERVER, NULL,
|
|
&IID_IPSFactoryBuffer, (LPVOID *)pPS);
|
|
return hr;
|
|
}
|