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6a20b2f476
wine/dlls/ole32/marshal.c
Robert Shearman 6a20b2f476 - Initialize ppv pointer in ClientIdentity_QueryInterface to NULL as 
apps depend on this.
- Don't release IRpcProxyBuffer on ifproxy destruction - the caller
  will do this for us.
- Make find_proxy_manager add a reference to the proxy manager and
  make proxy_manager_construct return an object with a valid
  ref-count.
- Remove stray not operator to fix a memory leak / crash in
  proxy_manager_destroy.
- More debug messages, especially on errors.
- Fix ref-count leak in the Class Factory proxy.
- Add a test case for IClassFactory_CreateInstance.
2005-01-19 17:00:20 +00:00

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/*
* Marshalling library
*
* Copyright 2002 Marcus Meissner
* Copyright 2004 Mike Hearn, for CodeWeavers
* Copyright 2004 Rob Shearman, for CodeWeavers
*
* 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
*/
#include "config.h"
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#define COBJMACROS
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "objbase.h"
#include "ole2.h"
#include "rpc.h"
#include "winerror.h"
#include "winreg.h"
#include "wtypes.h"
#include "wine/unicode.h"
#include "compobj_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(ole);
extern const CLSID CLSID_DfMarshal;
/* Marshalling just passes a unique identifier to the remote client,
* that makes it possible to find the passed interface again.
*
* So basically we need a set of values that make it unique.
*
* Process Identifier, Object IUnknown ptr, IID
*
* Note that the IUnknown_QI(ob,xiid,&ppv) always returns the SAME ppv value!
*
* In Windows, a different triple is used: OXID (apt id), OID (stub
* manager id), IPID (interface ptr/stub id).
*
* OXIDs identify an apartment and are network scoped
* OIDs identify a stub manager and are apartment scoped
* IPIDs identify an interface stub and are apartment scoped
*/
inline static HRESULT
get_facbuf_for_iid(REFIID riid,IPSFactoryBuffer **facbuf) {
HRESULT hres;
CLSID pxclsid;
if ((hres = CoGetPSClsid(riid,&pxclsid)))
return hres;
return CoGetClassObject(&pxclsid,CLSCTX_INPROC_SERVER,NULL,&IID_IPSFactoryBuffer,(LPVOID*)facbuf);
}
IRpcStubBuffer *mid_to_stubbuffer(wine_marshal_id *mid)
{
IRpcStubBuffer *ret;
APARTMENT *apt;
struct stub_manager *m;
if (!(apt = COM_ApartmentFromOXID(mid->oxid, TRUE)))
{
WARN("Could not map OXID %s to apartment object\n", wine_dbgstr_longlong(mid->oxid));
return NULL;
}
if (!(m = get_stub_manager(apt, mid->oid)))
{
WARN("unknown OID %s\n", wine_dbgstr_longlong(mid->oid));
return NULL;
}
ret = stub_manager_ipid_to_stubbuffer(m, &mid->ipid);
stub_manager_int_release(m);
COM_ApartmentRelease(apt);
return ret;
}
/* creates a new stub manager and sets mid->oid when mid->oid == 0 */
static HRESULT register_ifstub(wine_marshal_id *mid, REFIID riid, IUnknown *obj, IRpcStubBuffer *stub, MSHLFLAGS mshlflags)
{
struct stub_manager *manager = NULL;
struct ifstub *ifstub;
APARTMENT *apt;
BOOL tablemarshal;
if (!(apt = COM_ApartmentFromOXID(mid->oxid, TRUE)))
{
ERR("Could not map OXID %s to apartment object\n", wine_dbgstr_longlong(mid->oxid));
return E_UNEXPECTED;
}
/* mid->oid of zero means create a new stub manager */
if (mid->oid && (manager = get_stub_manager(apt, mid->oid)))
{
TRACE("registering new ifstub on pre-existing manager\n");
}
else
{
TRACE("constructing new stub manager\n");
manager = new_stub_manager(apt, obj);
if (!manager)
{
COM_ApartmentRelease(apt);
return E_OUTOFMEMORY;
}
mid->oid = manager->oid;
}
tablemarshal = ((mshlflags & MSHLFLAGS_TABLESTRONG) || (mshlflags & MSHLFLAGS_TABLEWEAK));
ifstub = stub_manager_new_ifstub(manager, stub, obj, riid, tablemarshal);
if (!ifstub)
{
stub_manager_int_release(manager);
/* FIXME: should we do another release to completely destroy the
* stub manager? */
COM_ApartmentRelease(apt);
return E_OUTOFMEMORY;
}
if (!tablemarshal)
stub_manager_ext_addref(manager, 1);
else if (mshlflags & MSHLFLAGS_TABLESTRONG)
stub_manager_ext_addref(manager, 1);
mid->ipid = ifstub->ipid;
stub_manager_int_release(manager);
COM_ApartmentRelease(apt);
return S_OK;
}
/* Client-side identity of the server object */
static void proxy_manager_destroy(struct proxy_manager * This);
static HRESULT proxy_manager_find_ifproxy(struct proxy_manager * This, REFIID riid, struct ifproxy ** ifproxy_found);
static HRESULT WINAPI ClientIdentity_QueryInterface(IInternalUnknown * iface, REFIID riid, void ** ppv)
{
struct proxy_manager * This = (struct proxy_manager *)iface;
HRESULT hr;
struct ifproxy * ifproxy;
TRACE("%s\n", debugstr_guid(riid));
if (IsEqualIID(riid, &IID_IUnknown) ||
IsEqualIID(riid, &IID_IInternalUnknown))
{
*ppv = (void *)iface;
IInternalUnknown_AddRef(iface);
return S_OK;
}
hr = proxy_manager_find_ifproxy(This, riid, &ifproxy);
if (hr == S_OK)
{
*ppv = ifproxy->iface;
IUnknown_AddRef((IUnknown *)*ppv);
return S_OK;
}
FIXME("interface not found %s\n", debugstr_guid(riid));
/* FIXME: call IRemUnknown::RemQueryInterface */
*ppv = NULL;
return E_NOINTERFACE;
}
static ULONG WINAPI ClientIdentity_AddRef(IInternalUnknown * iface)
{
struct proxy_manager * This = (struct proxy_manager *)iface;
TRACE("%p - before %ld\n", iface, This->refs);
return InterlockedIncrement(&This->refs);
}
static ULONG WINAPI ClientIdentity_Release(IInternalUnknown * iface)
{
struct proxy_manager * This = (struct proxy_manager *)iface;
ULONG refs = InterlockedDecrement(&This->refs);
TRACE("%p - after %ld\n", iface, refs);
if (!refs)
proxy_manager_destroy(This);
return refs;
}
static HRESULT WINAPI ClientIdentity_QueryInternalInterface(IInternalUnknown * iface, REFIID riid, void ** ppv)
{
FIXME("(%s, %p): stub!\n", debugstr_guid(riid), ppv);
return E_NOINTERFACE;
}
static const IInternalUnknownVtbl ClientIdentity_Vtbl =
{
ClientIdentity_QueryInterface,
ClientIdentity_AddRef,
ClientIdentity_Release,
ClientIdentity_QueryInternalInterface
};
static HRESULT ifproxy_get_public_ref(struct ifproxy * This)
{
EnterCriticalSection(&This->parent->cs);
if (This->refs == 0)
{
APARTMENT * apt;
TRACE("getting public ref for ifproxy %p\n", This);
/* FIXME: call IRemUnknown::RemAddRef if necessary */
/* FIXME: this is a hack around not yet implemented IRemUnknown */
if ((apt = COM_ApartmentFromOXID(This->parent->oxid, TRUE)))
{
struct stub_manager * stubmgr;
if ((stubmgr = get_stub_manager(apt, This->parent->oid)))
{
stub_manager_ext_addref(stubmgr, 1);
This->refs += 1;
stub_manager_int_release(stubmgr);
}
COM_ApartmentRelease(apt);
}
else
FIXME("Need to implement IRemUnknown for inter-process table marshaling\n");
}
LeaveCriticalSection(&This->parent->cs);
return S_OK;
}
static HRESULT ifproxy_release_public_refs(struct ifproxy * This)
{
EnterCriticalSection(&This->parent->cs);
/*
if (This->refs > 0)
{
// FIXME: call IRemUnknown::RemRelease
This->refs = 0;
}
*/
LeaveCriticalSection(&This->parent->cs);
return S_OK;
}
static void ifproxy_disconnect(struct ifproxy * This)
{
IRpcProxyBuffer_Disconnect(This->proxy);
}
static void ifproxy_destroy(struct ifproxy * This)
{
TRACE("%p\n", This);
/* release public references to this object so that the stub can know
* when to destroy itself */
ifproxy_release_public_refs(This);
list_remove(&This->entry);
/* note: we don't call Release for This->proxy because its lifetime is
* controlled by the return value from ClientIdentity_Release, which this
* function is always called from */
HeapFree(GetProcessHeap(), 0, This);
}
static HRESULT proxy_manager_construct(APARTMENT * apt, OXID oxid, OID oid, IRpcChannelBuffer * channel, struct proxy_manager ** proxy_manager)
{
struct proxy_manager * This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
if (!This) return E_OUTOFMEMORY;
This->lpVtbl = &ClientIdentity_Vtbl;
list_init(&This->entry);
list_init(&This->interfaces);
InitializeCriticalSection(&This->cs);
/* the apartment the object was unmarshaled into */
This->parent = apt;
/* the source apartment and id of the object */
This->oxid = oxid;
This->oid = oid;
This->refs = 1;
This->chan = channel; /* FIXME: we should take the binding strings and construct the channel in this function */
EnterCriticalSection(&apt->cs);
list_add_head(&apt->proxies, &This->entry);
LeaveCriticalSection(&apt->cs);
*proxy_manager = This;
return S_OK;
}
static HRESULT proxy_manager_create_ifproxy(struct proxy_manager * This, IPID ipid, REFIID riid, ULONG cPublicRefs, struct ifproxy ** iif_out)
{
HRESULT hr;
IPSFactoryBuffer * psfb;
struct ifproxy * ifproxy = HeapAlloc(GetProcessHeap(), 0, sizeof(*ifproxy));
if (!ifproxy) return E_OUTOFMEMORY;
list_init(&ifproxy->entry);
ifproxy->parent = This;
ifproxy->ipid = ipid;
ifproxy->iid = *riid;
ifproxy->refs = cPublicRefs;
ifproxy->proxy = NULL;
hr = get_facbuf_for_iid(riid, &psfb);
if (hr == S_OK)
{
/* important note: the outer unknown is set to the proxy manager.
* This ensures the COM identity rules are not violated, by having a
* one-to-one mapping of objects on the proxy side to objects on the
* stub side, no matter which interface you view the object through */
hr = IPSFactoryBuffer_CreateProxy(psfb, (IUnknown *)&This->lpVtbl, riid,
&ifproxy->proxy, &ifproxy->iface);
IPSFactoryBuffer_Release(psfb);
if (hr != S_OK)
ERR("Could not create proxy for interface %s, error 0x%08lx\n",
debugstr_guid(riid), hr);
}
else
ERR("Could not get IPSFactoryBuffer for interface %s, error 0x%08lx\n",
debugstr_guid(riid), hr);
if (hr == S_OK)
hr = IRpcProxyBuffer_Connect(ifproxy->proxy, This->chan);
/* get at least one external reference to the object to keep it alive */
if (hr == S_OK)
hr = ifproxy_get_public_ref(ifproxy);
if (hr == S_OK)
{
EnterCriticalSection(&This->cs);
list_add_tail(&This->interfaces, &ifproxy->entry);
LeaveCriticalSection(&This->cs);
*iif_out = ifproxy;
TRACE("ifproxy %p created for IPID %s, interface %s with %lu public refs\n",
ifproxy, debugstr_guid(&ipid), debugstr_guid(riid), cPublicRefs);
}
else
ifproxy_destroy(ifproxy);
return hr;
}
static HRESULT proxy_manager_find_ifproxy(struct proxy_manager * This, REFIID riid, struct ifproxy ** ifproxy_found)
{
HRESULT hr = E_NOINTERFACE; /* assume not found */
struct list * cursor;
EnterCriticalSection(&This->cs);
LIST_FOR_EACH(cursor, &This->interfaces)
{
struct ifproxy * ifproxy = LIST_ENTRY(cursor, struct ifproxy, entry);
if (IsEqualIID(riid, &ifproxy->iid))
{
*ifproxy_found = ifproxy;
hr = S_OK;
break;
}
}
LeaveCriticalSection(&This->cs);
return hr;
}
static void proxy_manager_disconnect(struct proxy_manager * This)
{
struct list * cursor;
TRACE("oid = %s\n", wine_dbgstr_longlong(This->oid));
EnterCriticalSection(&This->cs);
LIST_FOR_EACH(cursor, &This->interfaces)
{
struct ifproxy * ifproxy = LIST_ENTRY(cursor, struct ifproxy, entry);
ifproxy_disconnect(ifproxy);
}
/* apartment is being destroyed so don't keep a pointer around to it */
This->parent = NULL;
/* FIXME: will this still be necessary if/when we use a real RPC
* channel? */
IRpcChannelBuffer_Release(This->chan);
This->chan = NULL;
LeaveCriticalSection(&This->cs);
}
static void proxy_manager_destroy(struct proxy_manager * This)
{
struct list * cursor;
if (This->parent)
{
EnterCriticalSection(&This->parent->cs);
/* remove ourself from the list of proxy objects in the apartment */
LIST_FOR_EACH(cursor, &This->parent->proxies)
{
if (cursor == &This->entry)
{
list_remove(&This->entry);
break;
}
}
LeaveCriticalSection(&This->parent->cs);
}
/* destroy all of the interface proxies */
while ((cursor = list_head(&This->interfaces)))
{
struct ifproxy * ifproxy = LIST_ENTRY(cursor, struct ifproxy, entry);
ifproxy_destroy(ifproxy);
}
if (This->chan) IRpcChannelBuffer_Release(This->chan);
DeleteCriticalSection(&This->cs);
HeapFree(GetProcessHeap(), 0, This);
}
/* finds the proxy manager corresponding to a given OXID and OID that has
* been unmarshaled in the specified apartment. The caller must release the
* reference to the proxy_manager when the object is no longer used. */
static BOOL find_proxy_manager(APARTMENT * apt, OXID oxid, OID oid, struct proxy_manager ** proxy_found)
{
BOOL found = FALSE;
struct list * cursor;
EnterCriticalSection(&apt->cs);
LIST_FOR_EACH(cursor, &apt->proxies)
{
struct proxy_manager * proxy = LIST_ENTRY(cursor, struct proxy_manager, entry);
if ((oxid == proxy->oxid) && (oid == proxy->oid))
{
*proxy_found = proxy;
ClientIdentity_AddRef((IInternalUnknown *)&proxy->lpVtbl);
found = TRUE;
break;
}
}
LeaveCriticalSection(&apt->cs);
return found;
}
HRESULT MARSHAL_Disconnect_Proxies(APARTMENT *apt)
{
struct list * cursor;
EnterCriticalSection(&apt->cs);
LIST_FOR_EACH(cursor, &apt->proxies)
{
struct proxy_manager * proxy = LIST_ENTRY(cursor, struct proxy_manager, entry);
proxy_manager_disconnect(proxy);
}
LeaveCriticalSection(&apt->cs);
return S_OK;
}
/********************** StdMarshal implementation ****************************/
typedef struct _StdMarshalImpl {
IMarshalVtbl *lpvtbl;
DWORD ref;
IID iid;
DWORD dwDestContext;
LPVOID pvDestContext;
DWORD mshlflags;
} StdMarshalImpl;
static HRESULT WINAPI
StdMarshalImpl_QueryInterface(LPMARSHAL iface,REFIID riid,LPVOID *ppv) {
*ppv = NULL;
if (IsEqualIID(&IID_IUnknown,riid) || IsEqualIID(&IID_IMarshal,riid)) {
*ppv = iface;
IUnknown_AddRef(iface);
return S_OK;
}
FIXME("No interface for %s.\n",debugstr_guid(riid));
return E_NOINTERFACE;
}
static ULONG WINAPI
StdMarshalImpl_AddRef(LPMARSHAL iface) {
StdMarshalImpl *This = (StdMarshalImpl *)iface;
return InterlockedIncrement(&This->ref);
}
static ULONG WINAPI
StdMarshalImpl_Release(LPMARSHAL iface) {
StdMarshalImpl *This = (StdMarshalImpl *)iface;
ULONG ref = InterlockedDecrement(&This->ref);
if (!ref) HeapFree(GetProcessHeap(),0,This);
return ref;
}
static HRESULT WINAPI
StdMarshalImpl_GetUnmarshalClass(
LPMARSHAL iface, REFIID riid, void* pv, DWORD dwDestContext,
void* pvDestContext, DWORD mshlflags, CLSID* pCid
) {
memcpy(pCid,&CLSID_DfMarshal,sizeof(CLSID_DfMarshal));
return S_OK;
}
static HRESULT WINAPI
StdMarshalImpl_GetMarshalSizeMax(
LPMARSHAL iface, REFIID riid, void* pv, DWORD dwDestContext,
void* pvDestContext, DWORD mshlflags, DWORD* pSize
) {
*pSize = sizeof(wine_marshal_id);
return S_OK;
}
static HRESULT WINAPI
StdMarshalImpl_MarshalInterface(
LPMARSHAL iface, IStream *pStm,REFIID riid, void* pv, DWORD dwDestContext,
void* pvDestContext, DWORD mshlflags
) {
wine_marshal_id mid;
IUnknown *pUnk;
ULONG res;
HRESULT hres;
IRpcStubBuffer *stubbuffer;
IPSFactoryBuffer *psfacbuf;
struct stub_manager *manager;
APARTMENT *apt = COM_CurrentApt();
TRACE("(...,%s,...)\n",debugstr_guid(riid));
if (!apt)
{
ERR("Apartment not initialized\n");
return CO_E_NOTINITIALIZED;
}
start_apartment_listener_thread(); /* just to be sure we have one running. */
hres = get_facbuf_for_iid(riid,&psfacbuf);
if (hres) return hres;
hres = IPSFactoryBuffer_CreateStub(psfacbuf,riid,pv,&stubbuffer);
IPSFactoryBuffer_Release(psfacbuf);
if (hres) {
FIXME("Failed to create an RpcStubBuffer from PSFactory for %s\n",debugstr_guid(riid));
return hres;
}
/* now fill out the MID */
mid.oxid = apt->oxid;
IUnknown_QueryInterface((LPUNKNOWN)pv, riid, (LPVOID*)&pUnk);
if ((manager = get_stub_manager_from_object(apt, pUnk)))
{
mid.oid = manager->oid;
stub_manager_int_release(manager);
}
else
{
mid.oid = 0; /* will be set by register_ifstub */
}
hres = register_ifstub(&mid, riid, pUnk, stubbuffer, mshlflags);
IUnknown_Release(pUnk);
if (hres)
{
FIXME("Failed to create ifstub, hres=0x%lx\n", hres);
return hres;
}
hres = IStream_Write(pStm,&mid,sizeof(mid),&res);
if (hres) return hres;
return S_OK;
}
static HRESULT WINAPI
StdMarshalImpl_UnmarshalInterface(LPMARSHAL iface, IStream *pStm, REFIID riid, void **ppv)
{
struct stub_manager *stubmgr;
wine_marshal_id mid;
ULONG res;
HRESULT hres;
struct proxy_manager *proxy_manager = NULL;
APARTMENT *apt = COM_CurrentApt();
APARTMENT *stub_apt;
ULONG cPublicRefs = 1;
TRACE("(...,%s,....)\n",debugstr_guid(riid));
if (!apt)
{
ERR("Apartment not initialized\n");
return CO_E_NOTINITIALIZED;
}
hres = IStream_Read(pStm,&mid,sizeof(mid),&res);
if (hres) return hres;
/* check if we're marshalling back to ourselves */
if ((apt->oxid == mid.oxid) && (stubmgr = get_stub_manager(apt, mid.oid)))
{
TRACE("Unmarshalling object marshalled in same apartment for iid %s, returning original object %p\n", debugstr_guid(riid), stubmgr->object);
hres = IUnknown_QueryInterface(stubmgr->object, riid, ppv);
/* unref the ifstub. FIXME: only do this on success? */
if (!stub_manager_is_table_marshaled(stubmgr, &mid.ipid))
stub_manager_ext_release(stubmgr, 1);
stub_manager_int_release(stubmgr);
return hres;
}
/* notify stub manager about unmarshal if process-local object.
* note: if the oxid is not found then we and native will quite happily
* ignore table marshaling and normal marshaling rules regarding number of
* unmarshals, etc, but if you abuse these rules then your proxy could end
* up returning RPC_E_DISCONNECTED. */
if ((stub_apt = COM_ApartmentFromOXID(mid.oxid, TRUE)))
{
if ((stubmgr = get_stub_manager(stub_apt, mid.oid)))
{
if (!stub_manager_notify_unmarshal(stubmgr, &mid.ipid))
hres = CO_E_OBJNOTCONNECTED;
/* FIXME: hack around not using STDOBJREF yet */
if (stub_manager_is_table_marshaled(stubmgr, &mid.ipid))
cPublicRefs = 0;
stub_manager_int_release(stubmgr);
}
else
{
WARN("Couldn't find object for OXID %s, OID %s, assuming disconnected\n",
wine_dbgstr_longlong(mid.oxid),
wine_dbgstr_longlong(mid.oid));
hres = CO_E_OBJNOTCONNECTED;
}
COM_ApartmentRelease(stub_apt);
}
else
TRACE("Treating unmarshal from OXID %s as inter-process\n", wine_dbgstr_longlong(mid.oxid));
if (hres) return hres;
if (!find_proxy_manager(apt, mid.oxid, mid.oid, &proxy_manager))
{
IRpcChannelBuffer *chanbuf;
hres = PIPE_GetNewPipeBuf(&mid,&chanbuf);
if (hres == S_OK)
hres = proxy_manager_construct(apt, mid.oxid, mid.oid, chanbuf, &proxy_manager);
}
if (hres == S_OK)
{
/* the IUnknown interface is special because it does not have an
* ifproxy associated with it. we simply return the controlling
* IUnknown of the proxy manager. */
if (IsEqualIID(riid, &IID_IUnknown))
{
ClientIdentity_AddRef((IInternalUnknown*)&proxy_manager->lpVtbl);
*ppv = (LPVOID)(&proxy_manager->lpVtbl);
}
else
{
struct ifproxy * ifproxy;
hres = proxy_manager_find_ifproxy(proxy_manager, riid, &ifproxy);
if (hres == E_NOINTERFACE)
hres = proxy_manager_create_ifproxy(proxy_manager, mid.ipid,
riid, cPublicRefs, &ifproxy);
if (hres == S_OK)
{
/* FIXME: push this AddRef inside proxy_manager_find_ifproxy/create_ifproxy? */
ClientIdentity_AddRef((IInternalUnknown*)&proxy_manager->lpVtbl);
*ppv = ifproxy->iface;
}
}
}
if (proxy_manager) ClientIdentity_Release((IInternalUnknown*)&proxy_manager->lpVtbl);
if (hres) WARN("Failed with error 0x%08lx\n", hres);
else TRACE("Successfully created proxy %p\n", *ppv);
return hres;
}
static HRESULT WINAPI
StdMarshalImpl_ReleaseMarshalData(LPMARSHAL iface, IStream *pStm) {
wine_marshal_id mid;
ULONG res;
HRESULT hres;
struct stub_manager *stubmgr;
APARTMENT *apt;
TRACE("iface=%p, pStm=%p\n", iface, pStm);
hres = IStream_Read(pStm,&mid,sizeof(mid),&res);
if (hres) return hres;
if (!(apt = COM_ApartmentFromOXID(mid.oxid, TRUE)))
{
WARN("Could not map OXID %s to apartment object\n", wine_dbgstr_longlong(mid.oxid));
return RPC_E_INVALID_OBJREF;
}
if (!(stubmgr = get_stub_manager(apt, mid.oid)))
{
ERR("could not map MID to stub manager, oxid=%s, oid=%s\n",
wine_dbgstr_longlong(mid.oxid), wine_dbgstr_longlong(mid.oid));
return RPC_E_INVALID_OBJREF;
}
stub_manager_ext_release(stubmgr, 1);
stub_manager_int_release(stubmgr);
COM_ApartmentRelease(apt);
return S_OK;
}
static HRESULT WINAPI
StdMarshalImpl_DisconnectObject(LPMARSHAL iface, DWORD dwReserved) {
FIXME("(), stub!\n");
return S_OK;
}
IMarshalVtbl stdmvtbl = {
StdMarshalImpl_QueryInterface,
StdMarshalImpl_AddRef,
StdMarshalImpl_Release,
StdMarshalImpl_GetUnmarshalClass,
StdMarshalImpl_GetMarshalSizeMax,
StdMarshalImpl_MarshalInterface,
StdMarshalImpl_UnmarshalInterface,
StdMarshalImpl_ReleaseMarshalData,
StdMarshalImpl_DisconnectObject
};
static HRESULT StdMarshalImpl_Construct(REFIID riid, void** ppvObject)
{
StdMarshalImpl * pStdMarshal =
HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(StdMarshalImpl));
if (!pStdMarshal)
return E_OUTOFMEMORY;
pStdMarshal->lpvtbl = &stdmvtbl;
pStdMarshal->ref = 0;
return IMarshal_QueryInterface((IMarshal*)pStdMarshal, riid, ppvObject);
}
/***********************************************************************
* CoGetStandardMarshal [OLE32.@]
*
* Gets or creates a standard marshal object.
*
* PARAMS
* riid [I] Interface identifier of the pUnk object.
* pUnk [I] Optional. Object to get the marshal object for.
* dwDestContext [I] Destination. Used to enable or disable optimizations.
* pvDestContext [I] Reserved. Must be NULL.
* mshlflags [I] Flags affecting the marshaling process.
* ppMarshal [O] Address where marshal object will be stored.
*
* RETURNS
* Success: S_OK.
* Failure: HRESULT code.
*
* NOTES
*
* The function retrieves the IMarshal object associated with an object if
* that object is currently an active stub, otherwise a new marshal object is
* created.
*/
HRESULT WINAPI CoGetStandardMarshal(REFIID riid, IUnknown *pUnk,
DWORD dwDestContext, LPVOID pvDestContext,
DWORD mshlflags, LPMARSHAL *ppMarshal)
{
StdMarshalImpl *dm;
if (pUnk == NULL) {
FIXME("(%s,NULL,%lx,%p,%lx,%p), unimplemented yet.\n",
debugstr_guid(riid),dwDestContext,pvDestContext,mshlflags,ppMarshal
);
return E_FAIL;
}
TRACE("(%s,%p,%lx,%p,%lx,%p)\n",
debugstr_guid(riid),pUnk,dwDestContext,pvDestContext,mshlflags,ppMarshal
);
*ppMarshal = HeapAlloc(GetProcessHeap(),0,sizeof(StdMarshalImpl));
dm = (StdMarshalImpl*) *ppMarshal;
if (!dm) return E_FAIL;
dm->lpvtbl = &stdmvtbl;
dm->ref = 1;
memcpy(&dm->iid,riid,sizeof(dm->iid));
dm->dwDestContext = dwDestContext;
dm->pvDestContext = pvDestContext;
dm->mshlflags = mshlflags;
return S_OK;
}
/***********************************************************************
* get_marshaler [internal]
*
* Retrieves an IMarshal interface for an object.
*/
static HRESULT get_marshaler(REFIID riid, IUnknown *pUnk, DWORD dwDestContext,
void *pvDestContext, DWORD mshlFlags,
LPMARSHAL *pMarshal)
{
HRESULT hr;
if (!pUnk)
return E_POINTER;
hr = IUnknown_QueryInterface(pUnk, &IID_IMarshal, (LPVOID*)pMarshal);
if (hr)
hr = CoGetStandardMarshal(riid, pUnk, dwDestContext, pvDestContext,
mshlFlags, pMarshal);
return hr;
}
/***********************************************************************
* get_unmarshaler_from_stream [internal]
*
* Creates an IMarshal* object according to the data marshaled to the stream.
* The function leaves the stream pointer at the start of the data written
* to the stream by the IMarshal* object.
*/
static HRESULT get_unmarshaler_from_stream(IStream *stream, IMarshal **marshal)
{
HRESULT hr;
ULONG res;
OBJREF objref;
/* read common OBJREF header */
hr = IStream_Read(stream, &objref, FIELD_OFFSET(OBJREF, u_objref), &res);
if (hr || (res != FIELD_OFFSET(OBJREF, u_objref)))
{
ERR("Failed to read common OBJREF header, 0x%08lx\n", hr);
return STG_E_READFAULT;
}
/* sanity check on header */
if (objref.signature != OBJREF_SIGNATURE)
{
ERR("Bad OBJREF signature 0x%08lx\n", objref.signature);
return RPC_E_INVALID_OBJREF;
}
/* FIXME: handler marshaling */
if (objref.flags & OBJREF_STANDARD)
{
TRACE("Using standard unmarshaling\n");
hr = StdMarshalImpl_Construct(&IID_IMarshal, (LPVOID*)marshal);
}
else if (objref.flags & OBJREF_CUSTOM)
{
ULONG custom_header_size = FIELD_OFFSET(OBJREF, u_objref.u_custom.size) -
FIELD_OFFSET(OBJREF, u_objref.u_custom);
TRACE("Using custom unmarshaling\n");
/* read constant sized OR_CUSTOM data from stream */
hr = IStream_Read(stream, &objref.u_objref.u_custom,
custom_header_size, &res);
if (hr || (res != custom_header_size))
{
ERR("Failed to read OR_CUSTOM header, 0x%08lx\n", hr);
return STG_E_READFAULT;
}
/* now create the marshaler specified in the stream */
hr = CoCreateInstance(&objref.u_objref.u_custom.clsid, NULL,
CLSCTX_INPROC_SERVER, &IID_IMarshal,
(LPVOID*)marshal);
}
else
{
FIXME("Invalid or unimplemented marshaling type specified: %lx\n",
objref.flags);
return RPC_E_INVALID_OBJREF;
}
if (hr)
ERR("Failed to create marshal, 0x%08lx\n", hr);
return hr;
}
/***********************************************************************
* CoGetMarshalSizeMax [OLE32.@]
*
* Gets the maximum amount of data that will be needed by a marshal.
*
* PARAMS
* pulSize [O] Address where maximum marshal size will be stored.
* riid [I] Identifier of the interface to marshal.
* pUnk [I] Pointer to the object to marshal.
* dwDestContext [I] Destination. Used to enable or disable optimizations.
* pvDestContext [I] Reserved. Must be NULL.
* mshlFlags [I] Flags that affect the marshaling. See CoMarshalInterface().
*
* RETURNS
* Success: S_OK.
* Failure: HRESULT code.
*
* SEE ALSO
* CoMarshalInterface().
*/
HRESULT WINAPI CoGetMarshalSizeMax(ULONG *pulSize, REFIID riid, IUnknown *pUnk,
DWORD dwDestContext, void *pvDestContext,
DWORD mshlFlags)
{
HRESULT hr;
LPMARSHAL pMarshal;
CLSID marshaler_clsid;
hr = get_marshaler(riid, pUnk, dwDestContext, pvDestContext, mshlFlags, &pMarshal);
if (hr)
return hr;
hr = IMarshal_GetUnmarshalClass(pMarshal, riid, pUnk, dwDestContext,
pvDestContext, mshlFlags, &marshaler_clsid);
if (hr)
{
ERR("IMarshal::GetUnmarshalClass failed, 0x%08lx\n", hr);
IMarshal_Release(pMarshal);
return hr;
}
hr = IMarshal_GetMarshalSizeMax(pMarshal, riid, pUnk, dwDestContext,
pvDestContext, mshlFlags, pulSize);
/* add on the size of the common header */
*pulSize += FIELD_OFFSET(OBJREF, u_objref);
/* if custom marshaling, add on size of custom header */
if (!IsEqualCLSID(&marshaler_clsid, &CLSID_DfMarshal))
*pulSize += FIELD_OFFSET(OBJREF, u_objref.u_custom.size) -
FIELD_OFFSET(OBJREF, u_objref.u_custom);
IMarshal_Release(pMarshal);
return hr;
}
/***********************************************************************
* CoMarshalInterface [OLE32.@]
*
* Marshals an interface into a stream so that the object can then be
* unmarshaled from another COM apartment and used remotely.
*
* PARAMS
* pStream [I] Stream the object will be marshaled into.
* riid [I] Identifier of the interface to marshal.
* pUnk [I] Pointer to the object to marshal.
* dwDestContext [I] Destination. Used to enable or disable optimizations.
* pvDestContext [I] Reserved. Must be NULL.
* mshlFlags [I] Flags that affect the marshaling. See notes.
*
* RETURNS
* Success: S_OK.
* Failure: HRESULT code.
*
* NOTES
*
* The mshlFlags parameter can take one or more of the following flags:
*| MSHLFLAGS_NORMAL - Unmarshal once, releases stub on last proxy release.
*| MSHLFLAGS_TABLESTRONG - Unmarshal many, release when CoReleaseMarshalData() called.
*| MSHLFLAGS_TABLEWEAK - Unmarshal many, releases stub on last proxy release.
*| MSHLFLAGS_NOPING - No automatic garbage collection (and so reduces network traffic).
*
* If a marshaled object is not unmarshaled, then CoReleaseMarshalData() must
* be called in order to release the resources used in the marshaling.
*
* SEE ALSO
* CoUnmarshalInterface(), CoReleaseMarshalData().
*/
HRESULT WINAPI CoMarshalInterface(IStream *pStream, REFIID riid, IUnknown *pUnk,
DWORD dwDestContext, void *pvDestContext,
DWORD mshlFlags)
{
HRESULT hr;
CLSID marshaler_clsid;
OBJREF objref;
IStream * pMarshalStream = NULL;
LPMARSHAL pMarshal;
TRACE("(%p, %s, %p, %lx, %p, %lx)\n", pStream, debugstr_guid(riid), pUnk,
dwDestContext, pvDestContext, mshlFlags);
if (pUnk == NULL)
return E_INVALIDARG;
objref.signature = OBJREF_SIGNATURE;
objref.iid = *riid;
/* get the marshaler for the specified interface */
hr = get_marshaler(riid, pUnk, dwDestContext, pvDestContext, mshlFlags, &pMarshal);
if (hr)
{
ERR("Failed to get marshaller, 0x%08lx\n", hr);
return hr;
}
hr = IMarshal_GetUnmarshalClass(pMarshal, riid, pUnk, dwDestContext,
pvDestContext, mshlFlags, &marshaler_clsid);
if (hr)
{
ERR("IMarshal::GetUnmarshalClass failed, 0x%08lx\n", hr);
goto cleanup;
}
/* FIXME: implement handler marshaling too */
if (IsEqualCLSID(&marshaler_clsid, &CLSID_DfMarshal))
{
TRACE("Using standard marshaling\n");
objref.flags = OBJREF_STANDARD;
pMarshalStream = pStream;
}
else
{
TRACE("Using custom marshaling\n");
objref.flags = OBJREF_CUSTOM;
/* we do custom marshaling into a memory stream so that we know what
* size to write into the OR_CUSTOM header */
hr = CreateStreamOnHGlobal(NULL, TRUE, &pMarshalStream);
if (hr)
{
ERR("CreateStreamOnHGLOBAL failed with 0x%08lx\n", hr);
goto cleanup;
}
}
/* write the common OBJREF header to the stream */
hr = IStream_Write(pStream, &objref, FIELD_OFFSET(OBJREF, u_objref), NULL);
if (hr)
{
ERR("Failed to write OBJREF header to stream, 0x%08lx\n", hr);
goto cleanup;
}
TRACE("Calling IMarshal::MarshalInterace\n");
/* call helper object to do the actual marshaling */
hr = IMarshal_MarshalInterface(pMarshal, pMarshalStream, riid, pUnk, dwDestContext,
pvDestContext, mshlFlags);
if (hr)
{
ERR("Failed to marshal the interface %s, %lx\n", debugstr_guid(riid), hr);
goto cleanup;
}
if (objref.flags & OBJREF_CUSTOM)
{
ULONG custom_header_size = FIELD_OFFSET(OBJREF, u_objref.u_custom.size) -
FIELD_OFFSET(OBJREF, u_objref.u_custom);
HGLOBAL hGlobal;
LPVOID data;
hr = GetHGlobalFromStream(pMarshalStream, &hGlobal);
if (hr)
{
ERR("Couldn't get HGLOBAL from stream\n");
hr = E_UNEXPECTED;
goto cleanup;
}
objref.u_objref.u_custom.clsid = marshaler_clsid;
objref.u_objref.u_custom.cbExtension = 0;
objref.u_objref.u_custom.size = GlobalSize(hGlobal);
/* write constant sized OR_CUSTOM data into stream */
hr = IStream_Write(pStream, &objref.u_objref.u_custom,
custom_header_size, NULL);
if (hr)
{
ERR("Failed to write OR_CUSTOM header to stream with 0x%08lx\n", hr);
goto cleanup;
}
data = GlobalLock(hGlobal);
if (!data)
{
ERR("GlobalLock failed\n");
hr = E_UNEXPECTED;
goto cleanup;
}
/* write custom marshal data */
hr = IStream_Write(pStream, data, objref.u_objref.u_custom.size, NULL);
if (hr)
{
ERR("Failed to write custom marshal data with 0x%08lx\n", hr);
goto cleanup;
}
GlobalUnlock(hGlobal);
}
cleanup:
if (pMarshalStream && (objref.flags & OBJREF_CUSTOM))
IStream_Release(pMarshalStream);
IMarshal_Release(pMarshal);
return hr;
}
/***********************************************************************
* CoUnmarshalInterface [OLE32.@]
*
* Unmarshals an object from a stream by creating a proxy to the remote
* object, if necessary.
*
* PARAMS
*
* pStream [I] Stream containing the marshaled object.
* riid [I] Interface identifier of the object to create a proxy to.
* ppv [O] Address where proxy will be stored.
*
* RETURNS
*
* Success: S_OK.
* Failure: HRESULT code.
*
* SEE ALSO
* CoMarshalInterface().
*/
HRESULT WINAPI CoUnmarshalInterface(IStream *pStream, REFIID riid, LPVOID *ppv)
{
HRESULT hr;
LPMARSHAL pMarshal;
TRACE("(%p, %s, %p)\n", pStream, debugstr_guid(riid), ppv);
hr = get_unmarshaler_from_stream(pStream, &pMarshal);
if (hr != S_OK)
return hr;
/* call the helper object to do the actual unmarshaling */
hr = IMarshal_UnmarshalInterface(pMarshal, pStream, riid, ppv);
if (hr)
ERR("IMarshal::UnmarshalInterface failed, 0x%08lx\n", hr);
IMarshal_Release(pMarshal);
return hr;
}
/***********************************************************************
* CoReleaseMarshalData [OLE32.@]
*
* Releases resources associated with an object that has been marshaled into
* a stream.
*
* PARAMS
*
* pStream [I] The stream that the object has been marshaled into.
*
* RETURNS
* Success: S_OK.
* Failure: HRESULT error code.
*
* NOTES
*
* Call this function to release resources associated with a normal or
* table-weak marshal that will not be unmarshaled, and all table-strong
* marshals when they are no longer needed.
*
* SEE ALSO
* CoMarshalInterface(), CoUnmarshalInterface().
*/
HRESULT WINAPI CoReleaseMarshalData(IStream *pStream)
{
HRESULT hr;
LPMARSHAL pMarshal;
TRACE("(%p)\n", pStream);
hr = get_unmarshaler_from_stream(pStream, &pMarshal);
if (hr != S_OK)
return hr;
/* call the helper object to do the releasing of marshal data */
hr = IMarshal_ReleaseMarshalData(pMarshal, pStream);
if (hr)
ERR("IMarshal::ReleaseMarshalData failed with error 0x%08lx\n", hr);
IMarshal_Release(pMarshal);
return hr;
}
/***********************************************************************
* CoMarshalInterThreadInterfaceInStream [OLE32.@]
*
* Marshal an interface across threads in the same process.
*
* PARAMS
* riid [I] Identifier of the interface to be marshalled.
* pUnk [I] Pointer to IUnknown-derived interface that will be marshalled.
* ppStm [O] Pointer to IStream object that is created and then used to store the marshalled inteface.
*
* RETURNS
* Success: S_OK
* Failure: E_OUTOFMEMORY and other COM error codes
*
* SEE ALSO
* CoMarshalInterface(), CoUnmarshalInterface() and CoGetInterfaceAndReleaseStream()
*/
HRESULT WINAPI CoMarshalInterThreadInterfaceInStream(
REFIID riid, LPUNKNOWN pUnk, LPSTREAM * ppStm)
{
ULARGE_INTEGER xpos;
LARGE_INTEGER seekto;
HRESULT hres;
TRACE("(%s, %p, %p)\n",debugstr_guid(riid), pUnk, ppStm);
hres = CreateStreamOnHGlobal(0, TRUE, ppStm);
if (FAILED(hres)) return hres;
hres = CoMarshalInterface(*ppStm, riid, pUnk, MSHCTX_INPROC, NULL, MSHLFLAGS_NORMAL);
/* FIXME: is this needed? */
memset(&seekto,0,sizeof(seekto));
IStream_Seek(*ppStm,seekto,SEEK_SET,&xpos);
return hres;
}
/***********************************************************************
* CoGetInterfaceAndReleaseStream [OLE32.@]
*
* Unmarshalls an inteface from a stream and then releases the stream.
*
* PARAMS
* pStm [I] Stream that contains the marshalled inteface.
* riid [I] Interface identifier of the object to unmarshall.
* ppv [O] Address of pointer where the requested interface object will be stored.
*
* RETURNS
* Success: S_OK
* Failure: A COM error code
*
* SEE ALSO
* CoMarshalInterThreadInterfaceInStream() and CoUnmarshalInteface()
*/
HRESULT WINAPI CoGetInterfaceAndReleaseStream(LPSTREAM pStm, REFIID riid,
LPVOID *ppv)
{
HRESULT hres;
TRACE("(%p, %s, %p)\n", pStm, debugstr_guid(riid), ppv);
hres = CoUnmarshalInterface(pStm, riid, ppv);
IStream_Release(pStm);
return hres;
}
static HRESULT WINAPI StdMarshalCF_QueryInterface(LPCLASSFACTORY iface,
REFIID riid, LPVOID *ppv)
{
*ppv = NULL;
if (IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IClassFactory))
{
*ppv = (LPVOID)iface;
return S_OK;
}
return E_NOINTERFACE;
}
static ULONG WINAPI StdMarshalCF_AddRef(LPCLASSFACTORY iface)
{
return 2; /* non-heap based object */
}
static ULONG WINAPI StdMarshalCF_Release(LPCLASSFACTORY iface)
{
return 1; /* non-heap based object */
}
static HRESULT WINAPI StdMarshalCF_CreateInstance(LPCLASSFACTORY iface,
LPUNKNOWN pUnk, REFIID riid, LPVOID *ppv)
{
if (IsEqualIID(riid,&IID_IMarshal))
return StdMarshalImpl_Construct(riid, ppv);
FIXME("(%s), not supported.\n",debugstr_guid(riid));
return E_NOINTERFACE;
}
static HRESULT WINAPI StdMarshalCF_LockServer(LPCLASSFACTORY iface, BOOL fLock)
{
FIXME("(%d), stub!\n",fLock);
return S_OK;
}
static IClassFactoryVtbl StdMarshalCFVtbl =
{
StdMarshalCF_QueryInterface,
StdMarshalCF_AddRef,
StdMarshalCF_Release,
StdMarshalCF_CreateInstance,
StdMarshalCF_LockServer
};
static IClassFactoryVtbl *StdMarshalCF = &StdMarshalCFVtbl;
HRESULT MARSHAL_GetStandardMarshalCF(LPVOID *ppv)
{
*ppv = &StdMarshalCF;
return S_OK;
}
/***********************************************************************
* CoMarshalHresult [OLE32.@]
*
* Marshals an HRESULT value into a stream.
*
* PARAMS
* pStm [I] Stream that hresult will be marshalled into.
* hresult [I] HRESULT to be marshalled.
*
* RETURNS
* Success: S_OK
* Failure: A COM error code
*
* SEE ALSO
* CoUnmarshalHresult().
*/
HRESULT WINAPI CoMarshalHresult(LPSTREAM pStm, HRESULT hresult)
{
return IStream_Write(pStm, &hresult, sizeof(hresult), NULL);
}
/***********************************************************************
* CoUnmarshalHresult [OLE32.@]
*
* Unmarshals an HRESULT value from a stream.
*
* PARAMS
* pStm [I] Stream that hresult will be unmarshalled from.
* phresult [I] Pointer to HRESULT where the value will be unmarshalled to.
*
* RETURNS
* Success: S_OK
* Failure: A COM error code
*
* SEE ALSO
* CoMarshalHresult().
*/
HRESULT WINAPI CoUnmarshalHresult(LPSTREAM pStm, HRESULT * phresult)
{
return IStream_Read(pStm, phresult, sizeof(*phresult), NULL);
}
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