Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2024-07-02 18:54:25 +00:00
Code Issues Packages Projects Releases Wiki Activity

[RPCRT4]

Browse source 
partial rpcrt4 sync to wine 1.1.40 (fixes crashing cstub test)

svn path=/trunk/; revision=46292
This commit is contained in:
Christoph von Wittich 2010-03-21 10:53:17 +00:00
parent 7356746408
commit 69ced963a6
5 changed files with 320 additions and 220 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

203
reactos/dll/win32/rpcrt4/cproxy.c
View file

@ -2,6 +2,7 @@
* COM proxy implementation
*
* Copyright 2001 Ove Kåven, TransGaming Technologies
* Copyright 2009 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@ -20,6 +21,9 @@
* TODO: Handle non-i386 architectures
*/
#include "config.h"
#include "wine/port.h"
#include <stdarg.h>
#define COBJMACROS
@ -37,21 +41,19 @@
WINE_DEFAULT_DEBUG_CHANNEL(ole);
struct StublessThunk;
/* I don't know what MS's std proxy structure looks like,
so this probably doesn't match, but that shouldn't matter */
typedef struct {
const IRpcProxyBufferVtbl *lpVtbl;
LPVOID *PVtbl;
LONG RefCount;
const MIDL_STUBLESS_PROXY_INFO *stubless;
const IID* piid;
LPUNKNOWN pUnkOuter;
IUnknown *base_object; /* must be at offset 0x10 from PVtbl */
IRpcProxyBuffer *base_proxy;
PCInterfaceName name;
LPPSFACTORYBUFFER pPSFactory;
LPRPCCHANNELBUFFER pChannel;
struct StublessThunk *thunks;
} StdProxyImpl;
static const IRpcProxyBufferVtbl StdProxy_Vtbl;
@ -62,66 +64,111 @@ static const IRpcProxyBufferVtbl StdProxy_Vtbl;
#include "pshpack1.h"
struct StublessThunk {
struct thunk {
BYTE push;
DWORD index;
BYTE call;
BYTE jmp;
LONG handler;
BYTE ret;
WORD bytes;
BYTE pad[3];
};
#include "poppack.h"
/* adjust the stack size since we don't use Windows's method */
#define STACK_ADJUST sizeof(DWORD)
extern void call_stubless_func(void);
__ASM_GLOBAL_FUNC(call_stubless_func,
"pushl %esp\n\t" /* pointer to index */
__ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
"call " __ASM_NAME("ObjectStubless") __ASM_STDCALL(4) "\n\t"
"popl %edx\n\t" /* args size */
__ASM_CFI(".cfi_adjust_cfa_offset -4\n\t")
"movl (%esp),%ecx\n\t" /* return address */
"addl %edx,%esp\n\t"
"jmp *%ecx" );
#define FILL_STUBLESS(x,idx,stk) \
x->push = 0x68; /* pushl [immediate] */ \
x->index = (idx); \
x->call = 0xe8; /* call [near] */ \
x->handler = (char*)ObjectStubless - (char*)&x->ret; \
x->ret = 0xc2; /* ret [immediate] */ \
x->bytes = stk; \
x->pad[0] = 0x8d; /* leal (%esi),%esi */ \
x->pad[1] = 0x76; \
x->pad[2] = 0x00;
static HRESULT WINAPI ObjectStubless(DWORD index)
HRESULT WINAPI ObjectStubless(DWORD *args)
{
char *args = (char*)(&index + 2);
LPVOID iface = *(LPVOID*)args;
DWORD index = args[0];
void **iface = (void **)args[2];
const void **vtbl = (const void **)*iface;
const MIDL_STUBLESS_PROXY_INFO *stubless = *(const MIDL_STUBLESS_PROXY_INFO **)(vtbl - 2);
const PFORMAT_STRING fs = stubless->ProcFormatString + stubless->FormatStringOffset[index];
ICOM_THIS_MULTI(StdProxyImpl,PVtbl,iface);
/* store bytes to remove from stack */
args[0] = *(const WORD*)(fs + 8);
TRACE("(%p)->(%d)([%d bytes]) ret=%08x\n", iface, index, args[0], args[1]);
PFORMAT_STRING fs = This->stubless->ProcFormatString + This->stubless->FormatStringOffset[index];
unsigned bytes = *(const WORD*)(fs+8) - STACK_ADJUST;
TRACE("(%p)->(%d)([%d bytes]) ret=%08x\n", iface, index, bytes, *(DWORD*)(args+bytes));
return NdrClientCall2(stubless->pStubDesc, fs, args + 2);
}
return NdrClientCall2(This->stubless->pStubDesc, fs, args);
#define BLOCK_SIZE 1024
#define MAX_BLOCKS 64 /* 64k methods should be enough for anybody */
static const struct thunk *method_blocks[MAX_BLOCKS];
static const struct thunk *allocate_block( unsigned int num )
{
unsigned int i;
struct thunk *prev, *block;
block = VirtualAlloc( NULL, BLOCK_SIZE * sizeof(*block),
MEM_COMMIT | MEM_RESERVE, PAGE_EXECUTE_READWRITE );
if (!block) return NULL;
for (i = 0; i < BLOCK_SIZE; i++)
{
block[i].push = 0x68; /* pushl */
block[i].index = BLOCK_SIZE * num + i + 3;
block[i].jmp = 0xe9; /* jmp */
block[i].handler = (char *)call_stubless_func - (char *)(&block[i].handler + 1);
}
VirtualProtect( block, BLOCK_SIZE * sizeof(*block), PAGE_EXECUTE_READ, NULL );
prev = InterlockedCompareExchangePointer( (void **)&method_blocks[num], block, NULL );
if (prev) /* someone beat us to it */
{
VirtualFree( block, 0, MEM_RELEASE );
block = prev;
}
return block;
}
static BOOL fill_stubless_table( IUnknownVtbl *vtbl, DWORD num )
{
const void **entry = (const void **)(vtbl + 1);
DWORD i, j;
if (num - 3 > BLOCK_SIZE * MAX_BLOCKS)
{
FIXME( "%u methods not supported\n", num );
return FALSE;
}
for (i = 0; i < (num - 3 + BLOCK_SIZE - 1) / BLOCK_SIZE; i++)
{
const struct thunk *block = method_blocks[i];
if (!block && !(block = allocate_block( i ))) return FALSE;
for (j = 0; j < BLOCK_SIZE && j < num - 3 - i * BLOCK_SIZE; j++, entry++)
if (*entry == (LPVOID)-1) *entry = &block[j];
}
return TRUE;
}
#else /* __i386__ */
/* can't do that on this arch */
struct StublessThunk { int dummy; };
#define FILL_STUBLESS(x,idx,stk) \
ERR("stubless proxies are not supported on this architecture\n");
#define STACK_ADJUST 0
static BOOL fill_stubless_table( IUnknownVtbl *vtbl, DWORD num )
{
ERR("stubless proxies are not supported on this architecture\n");
return FALSE;
}
#endif /* __i386__ */
HRESULT WINAPI StdProxy_Construct(REFIID riid,
LPUNKNOWN pUnkOuter,
const ProxyFileInfo *ProxyInfo,
int Index,
LPPSFACTORYBUFFER pPSFactory,
LPRPCPROXYBUFFER *ppProxy,
LPVOID *ppvObj)
HRESULT StdProxy_Construct(REFIID riid,
LPUNKNOWN pUnkOuter,
const ProxyFileInfo *ProxyInfo,
int Index,
LPPSFACTORYBUFFER pPSFactory,
LPRPCPROXYBUFFER *ppProxy,
LPVOID *ppvObj)
{
StdProxyImpl *This;
const MIDL_STUBLESS_PROXY_INFO *stubless = NULL;
PCInterfaceName name = ProxyInfo->pNamesArray[Index];
CInterfaceProxyVtbl *vtbl = ProxyInfo->pProxyVtblList[Index];
@ -129,14 +176,12 @@ HRESULT WINAPI StdProxy_Construct(REFIID riid,
/* TableVersion = 2 means it is the stubless version of CInterfaceProxyVtbl */
if (ProxyInfo->TableVersion > 1) {
stubless = *(const void **)vtbl;
ULONG count = ProxyInfo->pStubVtblList[Index]->header.DispatchTableCount;
vtbl = (CInterfaceProxyVtbl *)((const void **)vtbl + 1);
TRACE("stubless=%p\n", stubless);
TRACE("stubless vtbl %p: count=%d\n", vtbl->Vtbl, count );
fill_stubless_table( (IUnknownVtbl *)vtbl->Vtbl, count );
}
TRACE("iid=%s\n", debugstr_guid(vtbl->header.piid));
TRACE("vtbl=%p\n", vtbl->Vtbl);
if (!IsEqualGUID(vtbl->header.piid, riid)) {
ERR("IID mismatch during proxy creation\n");
return RPC_E_UNEXPECTED;
@ -145,51 +190,37 @@ HRESULT WINAPI StdProxy_Construct(REFIID riid,
This = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(StdProxyImpl));
if (!This) return E_OUTOFMEMORY;
if (stubless) {
CInterfaceStubVtbl *svtbl = ProxyInfo->pStubVtblList[Index];
unsigned long i, count = svtbl->header.DispatchTableCount;
/* Maybe the original vtbl is just modified directly to point at
* ObjectStublessClientXXX thunks in real Windows, but I don't like it
*/
TRACE("stubless thunks: count=%ld\n", count);
This->thunks = HeapAlloc(GetProcessHeap(),0,sizeof(struct StublessThunk)*count);
This->PVtbl = HeapAlloc(GetProcessHeap(),0,sizeof(LPVOID)*count);
for (i=0; i<count; i++) {
struct StublessThunk *thunk = &This->thunks[i];
if (vtbl->Vtbl[i] == (LPVOID)-1) {
PFORMAT_STRING fs = stubless->ProcFormatString + stubless->FormatStringOffset[i];
unsigned bytes = *(const WORD*)(fs+8) - STACK_ADJUST;
TRACE("method %ld: stacksize=%d\n", i, bytes);
FILL_STUBLESS(thunk, i, bytes)
This->PVtbl[i] = thunk;
}
else {
memset(thunk, 0, sizeof(struct StublessThunk));
This->PVtbl[i] = vtbl->Vtbl[i];
}
}
}
else
This->PVtbl = vtbl->Vtbl;
if (!pUnkOuter) pUnkOuter = (IUnknown *)This;
This->lpVtbl = &StdProxy_Vtbl;
This->PVtbl = vtbl->Vtbl;
/* one reference for the proxy */
This->RefCount = 1;
This->stubless = stubless;
This->piid = vtbl->header.piid;
This->base_object = NULL;
This->base_proxy = NULL;
This->pUnkOuter = pUnkOuter;
This->name = name;
This->pPSFactory = pPSFactory;
This->pChannel = NULL;
if(ProxyInfo->pDelegatedIIDs && ProxyInfo->pDelegatedIIDs[Index])
{
HRESULT r = create_proxy( ProxyInfo->pDelegatedIIDs[Index], NULL,
&This->base_proxy, (void **)&This->base_object );
if (FAILED(r))
{
HeapFree( GetProcessHeap(), 0, This );
return r;
}
}
*ppProxy = (LPRPCPROXYBUFFER)&This->lpVtbl;
*ppvObj = &This->PVtbl;
/* if there is no outer unknown then the caller will control the lifetime
* of the proxy object through the proxy buffer, so no need to increment the
* ref count of the proxy object */
if (pUnkOuter)
IUnknown_AddRef((IUnknown *)*ppvObj);
IUnknown_AddRef((IUnknown *)*ppvObj);
IPSFactoryBuffer_AddRef(pPSFactory);
TRACE( "iid=%s this %p proxy %p obj %p vtbl %p base proxy %p base obj %p\n",
debugstr_guid(riid), This, *ppProxy, *ppvObj, This->PVtbl, This->base_proxy, This->base_object );
return S_OK;
}
@ -200,11 +231,10 @@ static void StdProxy_Destruct(LPRPCPROXYBUFFER iface)
if (This->pChannel)
IRpcProxyBuffer_Disconnect(iface);
if (This->base_object) IUnknown_Release( This->base_object );
if (This->base_proxy) IRpcProxyBuffer_Release( This->base_proxy );
IPSFactoryBuffer_Release(This->pPSFactory);
if (This->thunks) {
HeapFree(GetProcessHeap(),0,This->PVtbl);
HeapFree(GetProcessHeap(),0,This->thunks);
}
HeapFree(GetProcessHeap(),0,This);
}
@ -259,6 +289,7 @@ static HRESULT WINAPI StdProxy_Connect(LPRPCPROXYBUFFER iface,
This->pChannel = pChannel;
IRpcChannelBuffer_AddRef(pChannel);
if (This->base_proxy) IRpcProxyBuffer_Connect( This->base_proxy, pChannel );
return S_OK;
}
@ -267,6 +298,8 @@ static VOID WINAPI StdProxy_Disconnect(LPRPCPROXYBUFFER iface)
ICOM_THIS_MULTI(StdProxyImpl,lpVtbl,iface);
TRACE("(%p)->Disconnect()\n",This);
if (This->base_proxy) IRpcProxyBuffer_Disconnect( This->base_proxy );
IRpcChannelBuffer_Release(This->pChannel);
This->pChannel = NULL;
}

68
reactos/dll/win32/rpcrt4/cpsf.c
View file

@ -145,6 +145,41 @@ static const IPSFactoryBufferVtbl CStdPSFactory_Vtbl =
CStdPSFactory_CreateStub
};
static void init_psfactory( CStdPSFactoryBuffer *psfac, const ProxyFileInfo **file_list )
{
DWORD i, j, k;
psfac->lpVtbl = &CStdPSFactory_Vtbl;
psfac->RefCount = 0;
psfac->pProxyFileList = file_list;
for (i = 0; file_list[i]; i++)
{
const PCInterfaceProxyVtblList *proxies = file_list[i]->pProxyVtblList;
const PCInterfaceStubVtblList *stubs = file_list[i]->pStubVtblList;
for (j = 0; j < file_list[i]->TableSize; j++)
{
/* FIXME: i think that different vtables should be copied for
* async interfaces */
void * const *pSrcRpcStubVtbl = (void * const *)&CStdStubBuffer_Vtbl;
void **pRpcStubVtbl = (void **)&stubs[j]->Vtbl;
if (file_list[i]->pDelegatedIIDs && file_list[i]->pDelegatedIIDs[j])
{
void **vtbl = proxies[j]->Vtbl;
if (file_list[i]->TableVersion > 1) vtbl++;
fill_delegated_proxy_table( (IUnknownVtbl *)vtbl, stubs[j]->header.DispatchTableCount );
pSrcRpcStubVtbl = (void * const *)&CStdStubBuffer_Delegating_Vtbl;
}
for (k = 0; k < sizeof(IRpcStubBufferVtbl)/sizeof(void *); k++)
if (!pRpcStubVtbl[k]) pRpcStubVtbl[k] = pSrcRpcStubVtbl[k];
}
}
}
/***********************************************************************
* NdrDllGetClassObject [RPCRT4.@]
*/
@ -158,35 +193,8 @@ HRESULT WINAPI NdrDllGetClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv,
pPSFactoryBuffer);
*ppv = NULL;
if (!pPSFactoryBuffer->lpVtbl) {
const ProxyFileInfo **pProxyFileList2;
DWORD max_delegating_vtbl_size = 0;
pPSFactoryBuffer->lpVtbl = &CStdPSFactory_Vtbl;
pPSFactoryBuffer->RefCount = 0;
pPSFactoryBuffer->pProxyFileList = pProxyFileList;
for (pProxyFileList2 = pProxyFileList; *pProxyFileList2; pProxyFileList2++) {
int i;
for (i = 0; i < (*pProxyFileList2)->TableSize; i++) {
/* FIXME: i think that different vtables should be copied for
* async interfaces */
void * const *pSrcRpcStubVtbl = (void * const *)&CStdStubBuffer_Vtbl;
void **pRpcStubVtbl = (void **)&(*pProxyFileList2)->pStubVtblList[i]->Vtbl;
unsigned int j;
if (!pPSFactoryBuffer->lpVtbl) init_psfactory( pPSFactoryBuffer, pProxyFileList );
if ((*pProxyFileList2)->pDelegatedIIDs && (*pProxyFileList2)->pDelegatedIIDs[i]) {
pSrcRpcStubVtbl = (void * const *)&CStdStubBuffer_Delegating_Vtbl;
if ((*pProxyFileList2)->pStubVtblList[i]->header.DispatchTableCount > max_delegating_vtbl_size)
max_delegating_vtbl_size = (*pProxyFileList2)->pStubVtblList[i]->header.DispatchTableCount;
}
for (j = 0; j < sizeof(IRpcStubBufferVtbl)/sizeof(void *); j++)
if (!pRpcStubVtbl[j])
pRpcStubVtbl[j] = pSrcRpcStubVtbl[j];
}
}
if(max_delegating_vtbl_size > 0)
create_delegating_vtbl(max_delegating_vtbl_size);
}
if (pclsid && IsEqualGUID(rclsid, pclsid))
return IPSFactoryBuffer_QueryInterface((LPPSFACTORYBUFFER)pPSFactoryBuffer, iid, ppv);
else {
@ -207,7 +215,7 @@ HRESULT WINAPI NdrDllGetClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv,
*/
HRESULT WINAPI NdrDllCanUnloadNow(CStdPSFactoryBuffer *pPSFactoryBuffer)
{
return !(pPSFactoryBuffer->RefCount);
return pPSFactoryBuffer->RefCount != 0 ? S_FALSE : S_OK;
}
@ -266,7 +274,7 @@ HRESULT WINAPI NdrDllRegisterProxy(HMODULE hDll,
if (len && len < sizeof(module)) {
TRACE("registering CLSID %s => %s\n", debugstr_w(clsid), debugstr_w(module));
if (RegCreateKeyW(HKEY_CLASSES_ROOT, keyname, &key) == ERROR_SUCCESS) {
RegSetValueExW(subkey, NULL, 0, REG_SZ, (const BYTE *)psfactoryW, sizeof(psfactoryW));
RegSetValueExW(key, NULL, 0, REG_SZ, (const BYTE *)psfactoryW, sizeof(psfactoryW));
if (RegCreateKeyW(key, inprocserverW, &subkey) == ERROR_SUCCESS) {
RegSetValueExW(subkey, NULL, 0, REG_SZ, (LPBYTE)module, (strlenW(module)+1)*sizeof(WCHAR));
RegSetValueExW(subkey, threadingmodelW, 0, REG_SZ, (const BYTE *)bothW, sizeof(bothW));

33
reactos/dll/win32/rpcrt4/cpsf.h
View file

@ -21,36 +21,25 @@
#ifndef __WINE_CPSF_H
#define __WINE_CPSF_H
HRESULT WINAPI StdProxy_Construct(REFIID riid,
LPUNKNOWN pUnkOuter,
const ProxyFileInfo *ProxyInfo,
int Index,
LPPSFACTORYBUFFER pPSFactory,
LPRPCPROXYBUFFER *ppProxy,
LPVOID *ppvObj);
HRESULT StdProxy_Construct(REFIID riid, LPUNKNOWN pUnkOuter, const ProxyFileInfo *ProxyInfo,
int Index, LPPSFACTORYBUFFER pPSFactory, LPRPCPROXYBUFFER *ppProxy,
LPVOID *ppvObj);
HRESULT WINAPI CStdStubBuffer_Construct(REFIID riid,
LPUNKNOWN pUnkServer,
PCInterfaceName name,
CInterfaceStubVtbl *vtbl,
LPPSFACTORYBUFFER pPSFactory,
LPRPCSTUBBUFFER *ppStub);
HRESULT CStdStubBuffer_Construct(REFIID riid, LPUNKNOWN pUnkServer, PCInterfaceName name,
CInterfaceStubVtbl *vtbl, LPPSFACTORYBUFFER pPSFactory,
LPRPCSTUBBUFFER *ppStub);
HRESULT WINAPI CStdStubBuffer_Delegating_Construct(REFIID riid,
LPUNKNOWN pUnkServer,
PCInterfaceName name,
CInterfaceStubVtbl *vtbl,
REFIID delegating_iid,
LPPSFACTORYBUFFER pPSFactory,
LPRPCSTUBBUFFER *ppStub);
HRESULT CStdStubBuffer_Delegating_Construct(REFIID riid, LPUNKNOWN pUnkServer, PCInterfaceName name,
CInterfaceStubVtbl *vtbl, REFIID delegating_iid,
LPPSFACTORYBUFFER pPSFactory, LPRPCSTUBBUFFER *ppStub);
const MIDL_SERVER_INFO *CStdStubBuffer_GetServerInfo(IRpcStubBuffer *iface);
const IRpcStubBufferVtbl CStdStubBuffer_Vtbl;
const IRpcStubBufferVtbl CStdStubBuffer_Delegating_Vtbl;
void create_delegating_vtbl(DWORD num_methods);
BOOL fill_delegated_proxy_table(IUnknownVtbl *vtbl, DWORD num);
HRESULT create_proxy(REFIID iid, IUnknown *pUnkOuter, IRpcProxyBuffer **pproxy, void **ppv);
HRESULT create_stub(REFIID iid, IUnknown *pUnk, IRpcStubBuffer **ppstub);
#endif /* __WINE_CPSF_H */

212
reactos/dll/win32/rpcrt4/cstub.c
View file

@ -2,6 +2,7 @@
* COM stub (CStdStubBuffer) implementation
*
* Copyright 2001 Ove Kåven, TransGaming Technologies
* Copyright 2009 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@ -61,12 +62,12 @@ static inline cstdstubbuffer_delegating_t *impl_from_delegating( IRpcStubBuffer
return (cstdstubbuffer_delegating_t*)((char *)iface - FIELD_OFFSET(cstdstubbuffer_delegating_t, stub_buffer));
}
HRESULT WINAPI CStdStubBuffer_Construct(REFIID riid,
LPUNKNOWN pUnkServer,
PCInterfaceName name,
CInterfaceStubVtbl *vtbl,
LPPSFACTORYBUFFER pPSFactory,
LPRPCSTUBBUFFER *ppStub)
HRESULT CStdStubBuffer_Construct(REFIID riid,
LPUNKNOWN pUnkServer,
PCInterfaceName name,
CInterfaceStubVtbl *vtbl,
LPPSFACTORYBUFFER pPSFactory,
LPRPCSTUBBUFFER *ppStub)
{
CStdStubBuffer *This;
IUnknown *pvServer;
@ -113,20 +114,16 @@ typedef struct
{
DWORD ref;
DWORD size;
void **methods;
IUnknownVtbl vtbl;
/* remaining entries in vtbl */
} ref_counted_vtbl;
static struct
{
ref_counted_vtbl *table;
} current_vtbl;
static ref_counted_vtbl *current_vtbl;
static HRESULT WINAPI delegating_QueryInterface(IUnknown *pUnk, REFIID iid, void **ppv)
{
*ppv = (void *)pUnk;
*ppv = pUnk;
return S_OK;
}
@ -161,87 +158,137 @@ typedef struct {
} vtbl_method_t;
#include "poppack.h"
static void fill_table(IUnknownVtbl *vtbl, void **methods, DWORD num)
{
vtbl_method_t *method;
void **entry;
DWORD i;
#define BLOCK_SIZE 1024
#define MAX_BLOCKS 64 /* 64k methods should be enough for anybody */
static const vtbl_method_t *method_blocks[MAX_BLOCKS];
static const vtbl_method_t *allocate_block( unsigned int num )
{
unsigned int i;
vtbl_method_t *prev, *block;
block = VirtualAlloc( NULL, BLOCK_SIZE * sizeof(*block),
MEM_COMMIT | MEM_RESERVE, PAGE_EXECUTE_READWRITE );
if (!block) return NULL;
for (i = 0; i < BLOCK_SIZE; i++)
{
block[i].mov1 = 0x0424448b;
block[i].mov2 = 0x408b;
block[i].sixteen = 0x10;
block[i].mov3 = 0x04244489;
block[i].mov4 = 0x008b;
block[i].mov5 = 0x808b;
block[i].offset = (BLOCK_SIZE * num + i + 3) << 2;
block[i].jmp = 0xe0ff;
block[i].pad[0] = 0x8d;
block[i].pad[1] = 0x76;
block[i].pad[2] = 0x00;
}
VirtualProtect( block, BLOCK_SIZE * sizeof(*block), PAGE_EXECUTE_READ, NULL );
prev = InterlockedCompareExchangePointer( (void **)&method_blocks[num], block, NULL );
if (prev) /* someone beat us to it */
{
VirtualFree( block, 0, MEM_RELEASE );
block = prev;
}
return block;
}
static BOOL fill_delegated_stub_table(IUnknownVtbl *vtbl, DWORD num)
{
const void **entry = (const void **)(vtbl + 1);
DWORD i, j;
if (num - 3 > BLOCK_SIZE * MAX_BLOCKS)
{
FIXME( "%u methods not supported\n", num );
return FALSE;
}
vtbl->QueryInterface = delegating_QueryInterface;
vtbl->AddRef = delegating_AddRef;
vtbl->Release = delegating_Release;
method = (vtbl_method_t*)methods;
entry = (void**)(vtbl + 1);
for(i = 3; i < num; i++)
for (i = 0; i < (num - 3 + BLOCK_SIZE - 1) / BLOCK_SIZE; i++)
{
*entry = method;
method->mov1 = 0x0424448b;
method->mov2 = 0x408b;
method->sixteen = 0x10;
method->mov3 = 0x04244489;
method->mov4 = 0x008b;
method->mov5 = 0x808b;
method->offset = i << 2;
method->jmp = 0xe0ff;
method->pad[0] = 0x8d;
method->pad[1] = 0x76;
method->pad[2] = 0x00;
method++;
entry++;
const vtbl_method_t *block = method_blocks[i];
if (!block && !(block = allocate_block( i ))) return FALSE;
for (j = 0; j < BLOCK_SIZE && j < num - 3 - i * BLOCK_SIZE; j++) *entry++ = &block[j];
}
return TRUE;
}
BOOL fill_delegated_proxy_table(IUnknownVtbl *vtbl, DWORD num)
{
const void **entry = (const void **)(vtbl + 1);
DWORD i, j;
if (num - 3 > BLOCK_SIZE * MAX_BLOCKS)
{
FIXME( "%u methods not supported\n", num );
return FALSE;
}
vtbl->QueryInterface = IUnknown_QueryInterface_Proxy;
vtbl->AddRef = IUnknown_AddRef_Proxy;
vtbl->Release = IUnknown_Release_Proxy;
for (i = 0; i < (num - 3 + BLOCK_SIZE - 1) / BLOCK_SIZE; i++)
{
const vtbl_method_t *block = method_blocks[i];
if (!block && !(block = allocate_block( i ))) return FALSE;
for (j = 0; j < BLOCK_SIZE && j < num - 3 - i * BLOCK_SIZE; j++, entry++)
if (!*entry) *entry = &block[j];
}
return TRUE;
}
#else /* __i386__ */
typedef struct {int dummy;} vtbl_method_t;
static void fill_table(IUnknownVtbl *vtbl, void **methods, DWORD num)
static BOOL fill_delegated_stub_table(IUnknownVtbl *vtbl, DWORD num)
{
ERR("delegated stubs are not supported on this architecture\n");
return FALSE;
}
BOOL fill_delegated_proxy_table(IUnknownVtbl *vtbl, DWORD num)
{
ERR("delegated proxies are not supported on this architecture\n");
return FALSE;
}
#endif /* __i386__ */
void create_delegating_vtbl(DWORD num_methods)
{
TRACE("%d\n", num_methods);
if(num_methods <= 3)
{
ERR("should have more than %d methods\n", num_methods);
return;
}
EnterCriticalSection(&delegating_vtbl_section);
if(!current_vtbl.table || num_methods > current_vtbl.table->size)
{
DWORD size;
DWORD old_protect;
if(current_vtbl.table && current_vtbl.table->ref == 0)
{
TRACE("freeing old table\n");
VirtualFree(current_vtbl.table->methods, 0, MEM_RELEASE);
HeapFree(GetProcessHeap(), 0, current_vtbl.table);
}
size = (num_methods - 3) * sizeof(vtbl_method_t);
current_vtbl.table = HeapAlloc(GetProcessHeap(), 0, FIELD_OFFSET(ref_counted_vtbl, vtbl) + num_methods * sizeof(void*));
current_vtbl.table->ref = 0;
current_vtbl.table->size = num_methods;
current_vtbl.table->methods = VirtualAlloc(NULL, size, MEM_COMMIT | MEM_RESERVE, PAGE_EXECUTE_READWRITE);
fill_table(&current_vtbl.table->vtbl, current_vtbl.table->methods, num_methods);
VirtualProtect(current_vtbl.table->methods, size, PAGE_EXECUTE_READ, &old_protect);
}
LeaveCriticalSection(&delegating_vtbl_section);
}
static IUnknownVtbl *get_delegating_vtbl(void)
static IUnknownVtbl *get_delegating_vtbl(DWORD num_methods)
{
IUnknownVtbl *ret;
if (num_methods < 256) num_methods = 256; /* avoid frequent reallocations */
EnterCriticalSection(&delegating_vtbl_section);
current_vtbl.table->ref++;
ret = &current_vtbl.table->vtbl;
if(!current_vtbl || num_methods > current_vtbl->size)
{
ref_counted_vtbl *table = HeapAlloc(GetProcessHeap(), 0,
FIELD_OFFSET(ref_counted_vtbl, vtbl) + num_methods * sizeof(void*));
if (!table)
{
LeaveCriticalSection(&delegating_vtbl_section);
return NULL;
}
table->ref = 0;
table->size = num_methods;
fill_delegated_stub_table(&table->vtbl, num_methods);
if (current_vtbl && current_vtbl->ref == 0)
{
TRACE("freeing old table\n");
HeapFree(GetProcessHeap(), 0, current_vtbl);
}
current_vtbl = table;
}
current_vtbl->ref++;
ret = &current_vtbl->vtbl;
LeaveCriticalSection(&delegating_vtbl_section);
return ret;
}
@ -253,22 +300,21 @@ static void release_delegating_vtbl(IUnknownVtbl *vtbl)
EnterCriticalSection(&delegating_vtbl_section);
table->ref--;
TRACE("ref now %d\n", table->ref);
if(table->ref == 0 && table != current_vtbl.table)
if(table->ref == 0 && table != current_vtbl)
{
TRACE("... and we're not current so free'ing\n");
VirtualFree(current_vtbl.table->methods, 0, MEM_RELEASE);
HeapFree(GetProcessHeap(), 0, table);
}
LeaveCriticalSection(&delegating_vtbl_section);
}
HRESULT WINAPI CStdStubBuffer_Delegating_Construct(REFIID riid,
LPUNKNOWN pUnkServer,
PCInterfaceName name,
CInterfaceStubVtbl *vtbl,
REFIID delegating_iid,
LPPSFACTORYBUFFER pPSFactory,
LPRPCSTUBBUFFER *ppStub)
HRESULT CStdStubBuffer_Delegating_Construct(REFIID riid,
LPUNKNOWN pUnkServer,
PCInterfaceName name,
CInterfaceStubVtbl *vtbl,
REFIID delegating_iid,
LPPSFACTORYBUFFER pPSFactory,
LPRPCSTUBBUFFER *ppStub)
{
cstdstubbuffer_delegating_t *This;
IUnknown *pvServer;
@ -294,7 +340,7 @@ HRESULT WINAPI CStdStubBuffer_Delegating_Construct(REFIID riid,
return E_OUTOFMEMORY;
}
This->base_obj = get_delegating_vtbl();
This->base_obj = get_delegating_vtbl( vtbl->header.DispatchTableCount );
r = create_stub(delegating_iid, (IUnknown*)&This->base_obj, &This->base_stub);
if(FAILED(r))
{

24
reactos/dll/win32/rpcrt4/ndr_ole.c
View file

@ -369,6 +369,30 @@ void WINAPI NdrOleFree(void *NodeToFree)
COM_MemFree(NodeToFree);
}
/***********************************************************************
* Helper function to create a proxy.
* Probably similar to NdrpCreateProxy.
*/
HRESULT create_proxy(REFIID iid, IUnknown *pUnkOuter, IRpcProxyBuffer **pproxy, void **ppv)
{
CLSID clsid;
IPSFactoryBuffer *psfac;
HRESULT r;
if(!LoadCOM()) return E_FAIL;
r = COM_GetPSClsid( iid, &clsid );
if(FAILED(r)) return r;
r = COM_GetClassObject( &clsid, CLSCTX_INPROC_SERVER, NULL, &IID_IPSFactoryBuffer, (void**)&psfac );
if(FAILED(r)) return r;
r = IPSFactoryBuffer_CreateProxy(psfac, pUnkOuter, iid, pproxy, ppv);
IPSFactoryBuffer_Release(psfac);
return r;
}
/***********************************************************************
* Helper function to create a stub.
* This probably looks very much like NdrpCreateStub.