/* * Copyright 2002 Juergen Schmied * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #include <assert.h> #define COBJMACROS #include "objbase.h" #include "dcom.h" #include "combase_private.h" #include "wine/debug.h" WINE_DEFAULT_DEBUG_CHANNEL(ole); HRESULT WINAPI RPC_CreateClientChannel(const OXID *oxid, const IPID *ipid, const OXID_INFO *oxid_info, const IID *iid, DWORD dest_context, void *dest_context_data, IRpcChannelBuffer **chan, struct apartment *apt); static HRESULT unmarshal_object(const STDOBJREF *stdobjref, struct apartment *apt, MSHCTX dest_context, void *dest_context_data, REFIID riid, const OXID_INFO *oxid_info, void **object); /* number of refs given out for normal marshaling */ #define NORMALEXTREFS 5 /* private flag indicating that the object was marshaled as table-weak */ #define SORFP_TABLEWEAK SORF_OXRES1 /* private flag indicating that the caller does not want to notify the stub * when the proxy disconnects or is destroyed */ #define SORFP_NOLIFETIMEMGMT SORF_OXRES2 /* imported interface proxy */ struct ifproxy { struct list entry; /* entry in proxy_manager list (CS parent->cs) */ struct proxy_manager *parent; /* owning proxy_manager (RO) */ void *iface; /* interface pointer (RO) */ STDOBJREF stdobjref; /* marshal data that represents this object (RO) */ IID iid; /* interface ID (RO) */ IRpcProxyBuffer *proxy; /* interface proxy (RO) */ ULONG refs; /* imported (public) references (LOCK) */ IRpcChannelBuffer *chan; /* channel to object (CS parent->cs) */ }; /* imported object / proxy manager */ struct proxy_manager { IMultiQI IMultiQI_iface; IMarshal IMarshal_iface; IClientSecurity IClientSecurity_iface; struct apartment *parent; /* owning apartment (RO) */ struct list entry; /* entry in apartment (CS parent->cs) */ OXID oxid; /* object exported ID (RO) */ OXID_INFO oxid_info; /* string binding, ipid of rem unknown and other information (RO) */ OID oid; /* object ID (RO) */ struct list interfaces; /* imported interfaces (CS cs) */ LONG refs; /* proxy reference count (LOCK) */ CRITICAL_SECTION cs; /* thread safety for this object and children */ ULONG sorflags; /* STDOBJREF flags (RO) */ IRemUnknown *remunk; /* proxy to IRemUnknown used for lifecycle management (CS cs) */ HANDLE remoting_mutex; /* mutex used for synchronizing access to IRemUnknown */ MSHCTX dest_context; /* context used for activating optimisations (LOCK) */ void *dest_context_data; /* reserved context value (LOCK) */ }; static inline struct proxy_manager *impl_from_IMultiQI(IMultiQI *iface) { return CONTAINING_RECORD(iface, struct proxy_manager, IMultiQI_iface); } static inline struct proxy_manager *impl_from_IMarshal(IMarshal *iface) { return CONTAINING_RECORD(iface, struct proxy_manager, IMarshal_iface); } static inline struct proxy_manager *impl_from_IClientSecurity(IClientSecurity *iface) { return CONTAINING_RECORD(iface, struct proxy_manager, IClientSecurity_iface); } struct ftmarshaler { IUnknown IUnknown_inner; IMarshal IMarshal_iface; IUnknown *outer_unk; LONG refcount; }; static struct ftmarshaler *impl_ft_from_IUnknown(IUnknown *iface) { return CONTAINING_RECORD(iface, struct ftmarshaler, IUnknown_inner); } static struct ftmarshaler *impl_ft_from_IMarshal(IMarshal *iface) { return CONTAINING_RECORD(iface, struct ftmarshaler, IMarshal_iface); } /*********************************************************************** * CoMarshalHresult (combase.@) */ HRESULT WINAPI CoMarshalHresult(IStream *stream, HRESULT hresult) { return IStream_Write(stream, &hresult, sizeof(hresult), NULL); } /*********************************************************************** * CoUnmarshalHresult (combase.@) */ HRESULT WINAPI CoUnmarshalHresult(IStream *stream, HRESULT *phresult) { return IStream_Read(stream, phresult, sizeof(*phresult), NULL); } /*********************************************************************** * CoGetInterfaceAndReleaseStream (combase.@) */ HRESULT WINAPI CoGetInterfaceAndReleaseStream(IStream *stream, REFIID riid, void **obj) { HRESULT hr; TRACE("%p, %s, %p\n", stream, debugstr_guid(riid), obj); if (!stream) return E_INVALIDARG; hr = CoUnmarshalInterface(stream, riid, obj); IStream_Release(stream); return hr; } /*********************************************************************** * CoMarshalInterThreadInterfaceInStream (combase.@) */ HRESULT WINAPI CoMarshalInterThreadInterfaceInStream(REFIID riid, IUnknown *unk, IStream **stream) { ULARGE_INTEGER xpos; LARGE_INTEGER seekto; HRESULT hr; TRACE("%s, %p, %p\n", debugstr_guid(riid), unk, stream); hr = CreateStreamOnHGlobal(NULL, TRUE, stream); if (FAILED(hr)) return hr; hr = CoMarshalInterface(*stream, riid, unk, MSHCTX_INPROC, NULL, MSHLFLAGS_NORMAL); if (SUCCEEDED(hr)) { memset(&seekto, 0, sizeof(seekto)); IStream_Seek(*stream, seekto, STREAM_SEEK_SET, &xpos); } else { IStream_Release(*stream); *stream = NULL; } return hr; } static HRESULT WINAPI ftmarshaler_inner_QueryInterface(IUnknown *iface, REFIID riid, void **obj) { struct ftmarshaler *marshaler = impl_ft_from_IUnknown(iface); TRACE("%p, %s, %p\n", iface, debugstr_guid(riid), obj); *obj = NULL; if (IsEqualIID(&IID_IUnknown, riid)) *obj = &marshaler->IUnknown_inner; else if (IsEqualIID(&IID_IMarshal, riid)) *obj = &marshaler->IMarshal_iface; else { FIXME("No interface for %s\n", debugstr_guid(riid)); return E_NOINTERFACE; } IUnknown_AddRef((IUnknown *)*obj); return S_OK; } static ULONG WINAPI ftmarshaler_inner_AddRef(IUnknown *iface) { struct ftmarshaler *marshaler = impl_ft_from_IUnknown(iface); ULONG refcount = InterlockedIncrement(&marshaler->refcount); TRACE("%p, refcount %lu\n", iface, refcount); return refcount; } static ULONG WINAPI ftmarshaler_inner_Release(IUnknown *iface) { struct ftmarshaler *marshaler = impl_ft_from_IUnknown(iface); ULONG refcount = InterlockedDecrement(&marshaler->refcount); TRACE("%p, refcount %lu\n", iface, refcount); if (!refcount) free(marshaler); return refcount; } static const IUnknownVtbl ftmarshaler_inner_vtbl = { ftmarshaler_inner_QueryInterface, ftmarshaler_inner_AddRef, ftmarshaler_inner_Release }; static HRESULT WINAPI ftmarshaler_QueryInterface(IMarshal *iface, REFIID riid, void **obj) { struct ftmarshaler *marshaler = impl_ft_from_IMarshal(iface); TRACE("%p, %s, %p\n", iface, debugstr_guid(riid), obj); return IUnknown_QueryInterface(marshaler->outer_unk, riid, obj); } static ULONG WINAPI ftmarshaler_AddRef(IMarshal *iface) { struct ftmarshaler *marshaler = impl_ft_from_IMarshal(iface); TRACE("%p\n", iface); return IUnknown_AddRef(marshaler->outer_unk); } static ULONG WINAPI ftmarshaler_Release(IMarshal *iface) { struct ftmarshaler *marshaler = impl_ft_from_IMarshal(iface); TRACE("%p\n", iface); return IUnknown_Release(marshaler->outer_unk); } static HRESULT WINAPI ftmarshaler_GetUnmarshalClass(IMarshal *iface, REFIID riid, void *pv, DWORD dest_context, void *pvDestContext, DWORD mshlflags, CLSID *clsid) { TRACE("%s, %p, %#lx, %p, %#lx, %p\n", debugstr_guid(riid), pv, dest_context, pvDestContext, mshlflags, clsid); if (dest_context == MSHCTX_INPROC || dest_context == MSHCTX_CROSSCTX) *clsid = CLSID_InProcFreeMarshaler; else *clsid = CLSID_StdMarshal; return S_OK; } union ftmarshaler_data { UINT64 value; IUnknown *object; }; static HRESULT WINAPI ftmarshaler_GetMarshalSizeMax(IMarshal *iface, REFIID riid, void *pv, DWORD dest_context, void *pvDestContext, DWORD mshlflags, DWORD *size) { IMarshal *marshal = NULL; HRESULT hr; TRACE("%s, %p, %#lx, %p, %#lx, %p\n", debugstr_guid(riid), pv, dest_context, pvDestContext, mshlflags, size); /* If the marshalling happens inside the same process the interface pointer is copied between the apartments */ if (dest_context == MSHCTX_INPROC || dest_context == MSHCTX_CROSSCTX) { *size = sizeof(mshlflags) + sizeof(union ftmarshaler_data) + sizeof(GUID); return S_OK; } /* Use the standard marshaller to handle all other cases */ CoGetStandardMarshal(riid, pv, dest_context, pvDestContext, mshlflags, &marshal); hr = IMarshal_GetMarshalSizeMax(marshal, riid, pv, dest_context, pvDestContext, mshlflags, size); IMarshal_Release(marshal); return hr; } static HRESULT WINAPI ftmarshaler_MarshalInterface(IMarshal *iface, IStream *stream, REFIID riid, void *pv, DWORD dest_context, void *pvDestContext, DWORD mshlflags) { IMarshal *marshal = NULL; HRESULT hr; TRACE("%p, %s, %p, %#lx, %p, %#lx\n", stream, debugstr_guid(riid), pv, dest_context, pvDestContext, mshlflags); /* If the marshalling happens inside the same process the interface pointer is copied between the apartments */ if (dest_context == MSHCTX_INPROC || dest_context == MSHCTX_CROSSCTX) { union ftmarshaler_data data; GUID unknown_guid = { 0 }; data.value = 0; hr = IUnknown_QueryInterface((IUnknown *)pv, riid, (void **)&data.object); if (FAILED(hr)) return hr; /* don't hold a reference to table-weak marshaled interfaces */ if (mshlflags & MSHLFLAGS_TABLEWEAK) IUnknown_Release(data.object); hr = IStream_Write(stream, &mshlflags, sizeof(mshlflags), NULL); if (hr != S_OK) return STG_E_MEDIUMFULL; hr = IStream_Write(stream, &data, sizeof(data), NULL); if (hr != S_OK) return STG_E_MEDIUMFULL; hr = IStream_Write(stream, &unknown_guid, sizeof(unknown_guid), NULL); if (hr != S_OK) return STG_E_MEDIUMFULL; return S_OK; } /* Use the standard marshaler to handle all other cases */ CoGetStandardMarshal(riid, pv, dest_context, pvDestContext, mshlflags, &marshal); hr = IMarshal_MarshalInterface(marshal, stream, riid, pv, dest_context, pvDestContext, mshlflags); IMarshal_Release(marshal); return hr; } static HRESULT WINAPI ftmarshaler_UnmarshalInterface(IMarshal *iface, IStream *stream, REFIID riid, void **ppv) { union ftmarshaler_data data; DWORD mshlflags; GUID unknown_guid; HRESULT hr; TRACE("%p, %s, %p\n", stream, debugstr_guid(riid), ppv); hr = IStream_Read(stream, &mshlflags, sizeof(mshlflags), NULL); if (hr != S_OK) return STG_E_READFAULT; hr = IStream_Read(stream, &data, sizeof(data), NULL); if (hr != S_OK) return STG_E_READFAULT; hr = IStream_Read(stream, &unknown_guid, sizeof(unknown_guid), NULL); if (hr != S_OK) return STG_E_READFAULT; hr = IUnknown_QueryInterface(data.object, riid, ppv); if (!(mshlflags & (MSHLFLAGS_TABLEWEAK | MSHLFLAGS_TABLESTRONG))) IUnknown_Release(data.object); return hr; } static HRESULT WINAPI ftmarshaler_ReleaseMarshalData(IMarshal *iface, IStream *stream) { union ftmarshaler_data data; DWORD mshlflags; GUID unknown_guid; HRESULT hr; TRACE("%p\n", stream); hr = IStream_Read(stream, &mshlflags, sizeof(mshlflags), NULL); if (hr != S_OK) return STG_E_READFAULT; hr = IStream_Read(stream, &data, sizeof(data), NULL); if (hr != S_OK) return STG_E_READFAULT; hr = IStream_Read(stream, &unknown_guid, sizeof(unknown_guid), NULL); if (hr != S_OK) return STG_E_READFAULT; IUnknown_Release(data.object); return S_OK; } static HRESULT WINAPI ftmarshaler_DisconnectObject(IMarshal *iface, DWORD reserved) { TRACE("\n"); /* nothing to do */ return S_OK; } static const IMarshalVtbl ftmarshaler_vtbl = { ftmarshaler_QueryInterface, ftmarshaler_AddRef, ftmarshaler_Release, ftmarshaler_GetUnmarshalClass, ftmarshaler_GetMarshalSizeMax, ftmarshaler_MarshalInterface, ftmarshaler_UnmarshalInterface, ftmarshaler_ReleaseMarshalData, ftmarshaler_DisconnectObject }; /*********************************************************************** * CoCreateFreeThreadedMarshaler (combase.@) */ HRESULT WINAPI CoCreateFreeThreadedMarshaler(IUnknown *outer, IUnknown **marshaler) { struct ftmarshaler *object; TRACE("%p, %p\n", outer, marshaler); object = malloc(sizeof(*object)); if (!object) return E_OUTOFMEMORY; object->IUnknown_inner.lpVtbl = &ftmarshaler_inner_vtbl; object->IMarshal_iface.lpVtbl = &ftmarshaler_vtbl; object->refcount = 1; object->outer_unk = outer ? outer : &object->IUnknown_inner; *marshaler = &object->IUnknown_inner; return S_OK; } /*********************************************************************** * CoGetMarshalSizeMax (combase.@) */ HRESULT WINAPI CoGetMarshalSizeMax(ULONG *size, REFIID riid, IUnknown *unk, DWORD dest_context, void *pvDestContext, DWORD mshlFlags) { BOOL std_marshal = FALSE; IMarshal *marshal; HRESULT hr; if (!unk) return E_POINTER; hr = IUnknown_QueryInterface(unk, &IID_IMarshal, (void **)&marshal); if (hr != S_OK) { std_marshal = TRUE; hr = CoGetStandardMarshal(riid, unk, dest_context, pvDestContext, mshlFlags, &marshal); } if (hr != S_OK) return hr; hr = IMarshal_GetMarshalSizeMax(marshal, riid, unk, dest_context, pvDestContext, mshlFlags, size); if (!std_marshal) /* add on the size of the whole OBJREF structure like native does */ *size += sizeof(OBJREF); IMarshal_Release(marshal); return hr; } static void dump_mshflags(MSHLFLAGS flags) { if (flags & MSHLFLAGS_TABLESTRONG) TRACE(" MSHLFLAGS_TABLESTRONG"); if (flags & MSHLFLAGS_TABLEWEAK) TRACE(" MSHLFLAGS_TABLEWEAK"); if (!(flags & (MSHLFLAGS_TABLESTRONG|MSHLFLAGS_TABLEWEAK))) TRACE(" MSHLFLAGS_NORMAL"); if (flags & MSHLFLAGS_NOPING) TRACE(" MSHLFLAGS_NOPING"); } /*********************************************************************** * CoMarshalInterface (combase.@) */ HRESULT WINAPI CoMarshalInterface(IStream *stream, REFIID riid, IUnknown *unk, DWORD dest_context, void *pvDestContext, DWORD mshlFlags) { CLSID marshaler_clsid; IMarshal *marshal; HRESULT hr; TRACE("%p, %s, %p, %lx, %p, ", stream, debugstr_guid(riid), unk, dest_context, pvDestContext); dump_mshflags(mshlFlags); TRACE("\n"); if (!unk || !stream) return E_INVALIDARG; hr = IUnknown_QueryInterface(unk, &IID_IMarshal, (void **)&marshal); if (hr != S_OK) hr = CoGetStandardMarshal(riid, unk, dest_context, pvDestContext, mshlFlags, &marshal); if (hr != S_OK) { ERR("Failed to get marshaller, %#lx\n", hr); return hr; } hr = IMarshal_GetUnmarshalClass(marshal, riid, unk, dest_context, pvDestContext, mshlFlags, &marshaler_clsid); if (hr != S_OK) { ERR("IMarshal::GetUnmarshalClass failed, %#lx\n", hr); goto cleanup; } /* FIXME: implement handler marshaling too */ if (IsEqualCLSID(&marshaler_clsid, &CLSID_StdMarshal)) { TRACE("Using standard marshaling\n"); } else { OBJREF objref; TRACE("Using custom marshaling\n"); objref.signature = OBJREF_SIGNATURE; objref.iid = *riid; objref.flags = OBJREF_CUSTOM; objref.u_objref.u_custom.clsid = marshaler_clsid; objref.u_objref.u_custom.cbExtension = 0; objref.u_objref.u_custom.size = 0; hr = IMarshal_GetMarshalSizeMax(marshal, riid, unk, dest_context, pvDestContext, mshlFlags, &objref.u_objref.u_custom.size); if (hr != S_OK) { ERR("Failed to get max size of marshal data, error %#lx\n", hr); goto cleanup; } /* write constant sized common header and OR_CUSTOM data into stream */ hr = IStream_Write(stream, &objref, FIELD_OFFSET(OBJREF, u_objref.u_custom.pData), NULL); if (hr != S_OK) { ERR("Failed to write OR_CUSTOM header to stream with %#lx\n", hr); goto cleanup; } } TRACE("Calling IMarshal::MarshalInterface\n"); hr = IMarshal_MarshalInterface(marshal, stream, riid, unk, dest_context, pvDestContext, mshlFlags); if (hr != S_OK) { ERR("Failed to marshal the interface %s, hr %#lx\n", debugstr_guid(riid), hr); goto cleanup; } cleanup: IMarshal_Release(marshal); TRACE("completed with hr %#lx\n", hr); return hr; } /* 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, IID *iid) { OBJREF objref; HRESULT hr; ULONG res; /* read common OBJREF header */ hr = IStream_Read(stream, &objref, FIELD_OFFSET(OBJREF, u_objref), &res); if (hr != S_OK || (res != FIELD_OFFSET(OBJREF, u_objref))) { ERR("Failed to read common OBJREF header, %#lx\n", hr); return STG_E_READFAULT; } /* sanity check on header */ if (objref.signature != OBJREF_SIGNATURE) { ERR("Bad OBJREF signature %#lx\n", objref.signature); return RPC_E_INVALID_OBJREF; } if (iid) *iid = objref.iid; /* FIXME: handler marshaling */ if (objref.flags & OBJREF_STANDARD) { TRACE("Using standard unmarshaling\n"); *marshal = NULL; return S_FALSE; } else if (objref.flags & OBJREF_CUSTOM) { ULONG custom_header_size = FIELD_OFFSET(OBJREF, u_objref.u_custom.pData) - 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 != S_OK || (res != custom_header_size)) { ERR("Failed to read OR_CUSTOM header, %#lx\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 != S_OK) ERR("Failed to create marshal, %#lx\n", hr); return hr; } static HRESULT std_release_marshal_data(IStream *stream) { struct stub_manager *stubmgr; struct OR_STANDARD obj; struct apartment *apt; ULONG res; HRESULT hr; hr = IStream_Read(stream, &obj, FIELD_OFFSET(struct OR_STANDARD, saResAddr.aStringArray), &res); if (hr != S_OK) return STG_E_READFAULT; if (obj.saResAddr.wNumEntries) { ERR("unsupported size of DUALSTRINGARRAY\n"); return E_NOTIMPL; } TRACE("oxid = %s, oid = %s, ipid = %s\n", wine_dbgstr_longlong(obj.std.oxid), wine_dbgstr_longlong(obj.std.oid), wine_dbgstr_guid(&obj.std.ipid)); if (!(apt = apartment_findfromoxid(obj.std.oxid))) { WARN("Could not map OXID %s to apartment object\n", wine_dbgstr_longlong(obj.std.oxid)); return RPC_E_INVALID_OBJREF; } if (!(stubmgr = get_stub_manager(apt, obj.std.oid))) { apartment_release(apt); ERR("could not map object ID to stub manager, oxid=%s, oid=%s\n", wine_dbgstr_longlong(obj.std.oxid), wine_dbgstr_longlong(obj.std.oid)); return RPC_E_INVALID_OBJREF; } stub_manager_release_marshal_data(stubmgr, obj.std.cPublicRefs, &obj.std.ipid, obj.std.flags & SORFP_TABLEWEAK); stub_manager_int_release(stubmgr); apartment_release(apt); return S_OK; } /*********************************************************************** * CoReleaseMarshalData (combase.@) */ HRESULT WINAPI CoReleaseMarshalData(IStream *stream) { IMarshal *marshal; HRESULT hr; TRACE("%p\n", stream); hr = get_unmarshaler_from_stream(stream, &marshal, NULL); if (hr == S_FALSE) { hr = std_release_marshal_data(stream); if (hr != S_OK) ERR("StdMarshal ReleaseMarshalData failed with error %#lx\n", hr); return hr; } if (hr != S_OK) return hr; /* call the helper object to do the releasing of marshal data */ hr = IMarshal_ReleaseMarshalData(marshal, stream); if (hr != S_OK) ERR("IMarshal::ReleaseMarshalData failed with error %#lx\n", hr); IMarshal_Release(marshal); return hr; } static HRESULT std_unmarshal_interface(MSHCTX dest_context, void *dest_context_data, IStream *stream, REFIID riid, void **ppv) { struct stub_manager *stubmgr = NULL; struct OR_STANDARD obj; ULONG res; HRESULT hres; struct apartment *apt, *stub_apt; TRACE("(...,%s,....)\n", debugstr_guid(riid)); /* we need an apartment to unmarshal into */ if (!(apt = apartment_get_current_or_mta())) { ERR("Apartment not initialized\n"); return CO_E_NOTINITIALIZED; } /* read STDOBJREF from wire */ hres = IStream_Read(stream, &obj, FIELD_OFFSET(struct OR_STANDARD, saResAddr.aStringArray), &res); if (hres != S_OK) { apartment_release(apt); return STG_E_READFAULT; } if (obj.saResAddr.wNumEntries) { ERR("unsupported size of DUALSTRINGARRAY\n"); return E_NOTIMPL; } /* check if we're marshalling back to ourselves */ if ((apartment_getoxid(apt) == obj.std.oxid) && (stubmgr = get_stub_manager(apt, obj.std.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, &obj.std.ipid)) stub_manager_ext_release(stubmgr, obj.std.cPublicRefs, obj.std.flags & SORFP_TABLEWEAK, FALSE); stub_manager_int_release(stubmgr); apartment_release(apt); 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 = apartment_findfromoxid(obj.std.oxid))) { if ((stubmgr = get_stub_manager(stub_apt, obj.std.oid))) { if (!stub_manager_notify_unmarshal(stubmgr, &obj.std.ipid)) hres = CO_E_OBJNOTCONNECTED; } else { WARN("Couldn't find object for OXID %s, OID %s, assuming disconnected\n", wine_dbgstr_longlong(obj.std.oxid), wine_dbgstr_longlong(obj.std.oid)); hres = CO_E_OBJNOTCONNECTED; } } else TRACE("Treating unmarshal from OXID %s as inter-process\n", wine_dbgstr_longlong(obj.std.oxid)); if (hres == S_OK) hres = unmarshal_object(&obj.std, apt, dest_context, dest_context_data, riid, stubmgr ? &stubmgr->oxid_info : NULL, ppv); if (stubmgr) stub_manager_int_release(stubmgr); if (stub_apt) apartment_release(stub_apt); if (hres != S_OK) WARN("Failed with error %#lx\n", hres); else TRACE("Successfully created proxy %p\n", *ppv); apartment_release(apt); return hres; } /*********************************************************************** * CoUnmarshalInterface (combase.@) */ HRESULT WINAPI CoUnmarshalInterface(IStream *stream, REFIID riid, void **ppv) { IMarshal *marshal; IUnknown *object; HRESULT hr; IID iid; TRACE("%p, %s, %p\n", stream, debugstr_guid(riid), ppv); if (!stream || !ppv) return E_INVALIDARG; hr = get_unmarshaler_from_stream(stream, &marshal, &iid); if (hr == S_FALSE) { hr = std_unmarshal_interface(0, NULL, stream, &iid, (void **)&object); if (hr != S_OK) ERR("StdMarshal UnmarshalInterface failed, hr %#lx\n", hr); } else if (hr == S_OK) { /* call the helper object to do the actual unmarshaling */ hr = IMarshal_UnmarshalInterface(marshal, stream, &iid, (void **)&object); IMarshal_Release(marshal); if (hr != S_OK) ERR("IMarshal::UnmarshalInterface failed, hr %#lx\n", hr); } if (hr == S_OK) { /* IID_NULL means use the interface ID of the marshaled object */ if (!IsEqualIID(riid, &IID_NULL) && !IsEqualIID(riid, &iid)) { TRACE("requested interface != marshalled interface, additional QI needed\n"); hr = IUnknown_QueryInterface(object, riid, ppv); if (hr != S_OK) ERR("Couldn't query for interface %s, hr %#lx\n", debugstr_guid(riid), hr); IUnknown_Release(object); } else { *ppv = object; } } TRACE("completed with hr %#lx\n", hr); return hr; } /* 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. * * Note that the IUnknown_QI(ob,xiid,&ppv) always returns the SAME ppv value! * * A 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 */ static inline HRESULT get_facbuf_for_iid(REFIID riid, IPSFactoryBuffer **facbuf) { HRESULT hr; CLSID clsid; hr = CoGetPSClsid(riid, &clsid); if (hr != S_OK) return hr; return CoGetClassObject(&clsid, CLSCTX_INPROC_SERVER | CLSCTX_PS_DLL, NULL, &IID_IPSFactoryBuffer, (void **)facbuf); } /* marshals an object into a STDOBJREF structure */ HRESULT marshal_object(struct apartment *apt, STDOBJREF *stdobjref, REFIID riid, IUnknown *object, DWORD dest_context, void *dest_context_data, MSHLFLAGS mshlflags) { struct stub_manager *manager; struct ifstub *ifstub; BOOL tablemarshal; HRESULT hr; stdobjref->oxid = apartment_getoxid(apt); hr = apartment_createwindowifneeded(apt); if (hr != S_OK) return hr; if (!(manager = get_stub_manager_from_object(apt, object, TRUE))) return E_OUTOFMEMORY; stdobjref->flags = SORF_NULL; if (mshlflags & MSHLFLAGS_TABLEWEAK) stdobjref->flags |= SORFP_TABLEWEAK; if (mshlflags & MSHLFLAGS_NOPING) stdobjref->flags |= SORF_NOPING; stdobjref->oid = manager->oid; tablemarshal = ((mshlflags & MSHLFLAGS_TABLESTRONG) || (mshlflags & MSHLFLAGS_TABLEWEAK)); /* make sure ifstub that we are creating is unique */ ifstub = stub_manager_find_ifstub(manager, riid, mshlflags); if (!ifstub) { IRpcStubBuffer *stub = NULL; /* IUnknown doesn't require a stub buffer, because it never goes out on * the wire */ if (!IsEqualIID(riid, &IID_IUnknown)) { IPSFactoryBuffer *psfb; hr = get_facbuf_for_iid(riid, &psfb); if (hr == S_OK) { hr = IPSFactoryBuffer_CreateStub(psfb, riid, manager->object, &stub); IPSFactoryBuffer_Release(psfb); if (hr != S_OK) ERR("Failed to create an IRpcStubBuffer from IPSFactory for %s with error %#lx\n", debugstr_guid(riid), hr); }else { WARN("couldn't get IPSFactory buffer for interface %s\n", debugstr_guid(riid)); hr = E_NOINTERFACE; } } if (hr == S_OK) { ifstub = stub_manager_new_ifstub(manager, stub, riid, dest_context, dest_context_data, mshlflags); if (!ifstub) hr = E_OUTOFMEMORY; } if (stub) IRpcStubBuffer_Release(stub); if (hr != S_OK) { stub_manager_int_release(manager); /* destroy the stub manager if it has no ifstubs by releasing * zero external references */ stub_manager_ext_release(manager, 0, FALSE, TRUE); return hr; } } if (!tablemarshal) { stdobjref->cPublicRefs = NORMALEXTREFS; stub_manager_ext_addref(manager, stdobjref->cPublicRefs, FALSE); } else { stdobjref->cPublicRefs = 0; if (mshlflags & MSHLFLAGS_TABLESTRONG) stub_manager_ext_addref(manager, 1, FALSE); else stub_manager_ext_addref(manager, 0, TRUE); } /* FIXME: check return value */ rpc_register_interface(riid); stdobjref->ipid = ifstub->ipid; stub_manager_int_release(manager); return S_OK; } /* Client-side identity of the server object */ static HRESULT proxy_manager_get_remunknown(struct proxy_manager * This, IRemUnknown **remunk); 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 proxy_manager_query_local_interface(struct proxy_manager * This, REFIID riid, void ** ppv); static HRESULT WINAPI ClientIdentity_QueryInterface(IMultiQI * iface, REFIID riid, void ** ppv) { HRESULT hr; MULTI_QI mqi; TRACE("%s\n", debugstr_guid(riid)); mqi.pIID = riid; hr = IMultiQI_QueryMultipleInterfaces(iface, 1, &mqi); *ppv = mqi.pItf; return hr; } static ULONG WINAPI ClientIdentity_AddRef(IMultiQI *iface) { struct proxy_manager *This = impl_from_IMultiQI(iface); TRACE("%p - before %ld\n", iface, This->refs); return InterlockedIncrement(&This->refs); } static ULONG WINAPI ClientIdentity_Release(IMultiQI *iface) { struct proxy_manager *This = impl_from_IMultiQI(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_QueryMultipleInterfaces(IMultiQI *iface, ULONG cMQIs, MULTI_QI *pMQIs) { struct proxy_manager *This = impl_from_IMultiQI(iface); REMQIRESULT *qiresults = NULL; ULONG nonlocal_mqis = 0; ULONG i; ULONG successful_mqis = 0; IID *iids = malloc(cMQIs * sizeof(*iids)); /* mapping of RemQueryInterface index to QueryMultipleInterfaces index */ ULONG *mapping = malloc(cMQIs * sizeof(*mapping)); TRACE("cMQIs: %ld\n", cMQIs); /* try to get a local interface - this includes already active proxy * interfaces and also interfaces exposed by the proxy manager */ for (i = 0; i < cMQIs; i++) { TRACE("iid[%ld] = %s\n", i, debugstr_guid(pMQIs[i].pIID)); pMQIs[i].hr = proxy_manager_query_local_interface(This, pMQIs[i].pIID, (void **)&pMQIs[i].pItf); if (pMQIs[i].hr == S_OK) successful_mqis++; else { iids[nonlocal_mqis] = *pMQIs[i].pIID; mapping[nonlocal_mqis] = i; nonlocal_mqis++; } } TRACE("%ld interfaces not found locally\n", nonlocal_mqis); /* if we have more than one interface not found locally then we must try * to query the remote object for it */ if (nonlocal_mqis != 0) { IRemUnknown *remunk; HRESULT hr; IPID *ipid; /* get the ipid of the first entry */ /* FIXME: should we implement ClientIdentity on the ifproxies instead * of the proxy_manager so we use the correct ipid here? */ ipid = &LIST_ENTRY(list_head(&This->interfaces), struct ifproxy, entry)->stdobjref.ipid; /* get IRemUnknown proxy so we can communicate with the remote object */ hr = proxy_manager_get_remunknown(This, &remunk); if (SUCCEEDED(hr)) { hr = IRemUnknown_RemQueryInterface(remunk, ipid, NORMALEXTREFS, nonlocal_mqis, iids, &qiresults); IRemUnknown_Release(remunk); if (FAILED(hr)) WARN("IRemUnknown_RemQueryInterface failed with error %#lx\n", hr); } /* IRemUnknown_RemQueryInterface can return S_FALSE if only some of * the interfaces were returned */ if (SUCCEEDED(hr)) { struct apartment *apt = apartment_get_current_or_mta(); /* try to unmarshal each object returned to us */ for (i = 0; i < nonlocal_mqis; i++) { ULONG index = mapping[i]; HRESULT hrobj = qiresults[i].hResult; if (hrobj == S_OK) hrobj = unmarshal_object(&qiresults[i].std, apt, This->dest_context, This->dest_context_data, pMQIs[index].pIID, &This->oxid_info, (void **)&pMQIs[index].pItf); if (hrobj == S_OK) successful_mqis++; else ERR("Failed to get pointer to interface %s\n", debugstr_guid(pMQIs[index].pIID)); pMQIs[index].hr = hrobj; } apartment_release(apt); } /* free the memory allocated by the proxy */ CoTaskMemFree(qiresults); } TRACE("%ld/%ld successfully queried\n", successful_mqis, cMQIs); free(iids); free(mapping); if (successful_mqis == cMQIs) return S_OK; /* we got all requested interfaces */ else if (successful_mqis == 0) return E_NOINTERFACE; /* we didn't get any interfaces */ else return S_FALSE; /* we got some interfaces */ } static const IMultiQIVtbl ClientIdentity_Vtbl = { ClientIdentity_QueryInterface, ClientIdentity_AddRef, ClientIdentity_Release, ClientIdentity_QueryMultipleInterfaces }; static HRESULT StdMarshalImpl_Construct(REFIID, DWORD, void*, void**); static HRESULT WINAPI Proxy_QueryInterface(IMarshal *iface, REFIID riid, void **ppvObject) { struct proxy_manager *This = impl_from_IMarshal( iface ); return IMultiQI_QueryInterface(&This->IMultiQI_iface, riid, ppvObject); } static ULONG WINAPI Proxy_AddRef(IMarshal *iface) { struct proxy_manager *This = impl_from_IMarshal( iface ); return IMultiQI_AddRef(&This->IMultiQI_iface); } static ULONG WINAPI Proxy_Release(IMarshal *iface) { struct proxy_manager *This = impl_from_IMarshal( iface ); return IMultiQI_Release(&This->IMultiQI_iface); } static HRESULT WINAPI Proxy_GetUnmarshalClass( IMarshal *iface, REFIID riid, void* pv, DWORD dwDestContext, void* pvDestContext, DWORD mshlflags, CLSID* pCid) { *pCid = CLSID_StdMarshal; return S_OK; } static HRESULT WINAPI Proxy_GetMarshalSizeMax( IMarshal *iface, REFIID riid, void* pv, DWORD dwDestContext, void* pvDestContext, DWORD mshlflags, DWORD* pSize) { *pSize = FIELD_OFFSET(OBJREF, u_objref.u_standard.saResAddr.aStringArray); return S_OK; } static void fill_std_objref(OBJREF *objref, const GUID *iid, STDOBJREF *std) { objref->signature = OBJREF_SIGNATURE; objref->flags = OBJREF_STANDARD; objref->iid = *iid; if(std) objref->u_objref.u_standard.std = *std; memset(&objref->u_objref.u_standard.saResAddr, 0, sizeof(objref->u_objref.u_standard.saResAddr)); } static HRESULT WINAPI Proxy_MarshalInterface( LPMARSHAL iface, IStream *pStm, REFIID riid, void* pv, DWORD dwDestContext, void* pvDestContext, DWORD mshlflags) { struct proxy_manager *This = impl_from_IMarshal( iface ); HRESULT hr; struct ifproxy *ifproxy; TRACE("(...,%s,...)\n", debugstr_guid(riid)); hr = proxy_manager_find_ifproxy(This, riid, &ifproxy); if (SUCCEEDED(hr)) { STDOBJREF stdobjref = ifproxy->stdobjref; stdobjref.cPublicRefs = 0; if ((mshlflags != MSHLFLAGS_TABLEWEAK) && (mshlflags != MSHLFLAGS_TABLESTRONG)) { ULONG cPublicRefs = ifproxy->refs; ULONG cPublicRefsOld; /* optimization - share out proxy's public references if possible * instead of making new proxy do a roundtrip through the server */ do { ULONG cPublicRefsNew; cPublicRefsOld = cPublicRefs; stdobjref.cPublicRefs = cPublicRefs / 2; cPublicRefsNew = cPublicRefs - stdobjref.cPublicRefs; cPublicRefs = InterlockedCompareExchange( (LONG *)&ifproxy->refs, cPublicRefsNew, cPublicRefsOld); } while (cPublicRefs != cPublicRefsOld); } /* normal and table-strong marshaling need at least one reference */ if (!stdobjref.cPublicRefs && (mshlflags != MSHLFLAGS_TABLEWEAK)) { IRemUnknown *remunk; hr = proxy_manager_get_remunknown(This, &remunk); if (hr == S_OK) { HRESULT hrref = S_OK; REMINTERFACEREF rif; rif.ipid = ifproxy->stdobjref.ipid; rif.cPublicRefs = (mshlflags == MSHLFLAGS_TABLESTRONG) ? 1 : NORMALEXTREFS; rif.cPrivateRefs = 0; hr = IRemUnknown_RemAddRef(remunk, 1, &rif, &hrref); IRemUnknown_Release(remunk); if (hr == S_OK && hrref == S_OK) { /* table-strong marshaling doesn't give the refs to the * client that unmarshals the STDOBJREF */ if (mshlflags != MSHLFLAGS_TABLESTRONG) stdobjref.cPublicRefs = rif.cPublicRefs; } else ERR("IRemUnknown_RemAddRef returned with %#lx, hrref = %#lx\n", hr, hrref); } } if (SUCCEEDED(hr)) { OBJREF objref; TRACE("writing stdobjref: flags = %#lx cPublicRefs = %ld oxid = %s oid = %s ipid = %s\n", stdobjref.flags, stdobjref.cPublicRefs, wine_dbgstr_longlong(stdobjref.oxid), wine_dbgstr_longlong(stdobjref.oid), debugstr_guid(&stdobjref.ipid)); fill_std_objref(&objref, riid, &stdobjref); hr = IStream_Write(pStm, &objref, FIELD_OFFSET(OBJREF, u_objref.u_standard.saResAddr.aStringArray), NULL); } } else { /* we don't have the interface already unmarshaled so we have to * request the object from the server */ IRemUnknown *remunk; IPID *ipid; REMQIRESULT *qiresults = NULL; IID iid = *riid; /* get the ipid of the first entry */ /* FIXME: should we implement ClientIdentity on the ifproxies instead * of the proxy_manager so we use the correct ipid here? */ ipid = &LIST_ENTRY(list_head(&This->interfaces), struct ifproxy, entry)->stdobjref.ipid; /* get IRemUnknown proxy so we can communicate with the remote object */ hr = proxy_manager_get_remunknown(This, &remunk); if (hr == S_OK) { hr = IRemUnknown_RemQueryInterface(remunk, ipid, NORMALEXTREFS, 1, &iid, &qiresults); if (SUCCEEDED(hr)) { OBJREF objref; fill_std_objref(&objref, riid, &qiresults->std); hr = IStream_Write(pStm, &objref, FIELD_OFFSET(OBJREF, u_objref.u_standard.saResAddr.aStringArray), NULL); if (FAILED(hr)) { REMINTERFACEREF rif; rif.ipid = qiresults->std.ipid; rif.cPublicRefs = qiresults->std.cPublicRefs; rif.cPrivateRefs = 0; IRemUnknown_RemRelease(remunk, 1, &rif); } CoTaskMemFree(qiresults); } else ERR("IRemUnknown_RemQueryInterface failed with error %#lx\n", hr); IRemUnknown_Release(remunk); } } return hr; } static HRESULT WINAPI Proxy_UnmarshalInterface( IMarshal *iface, IStream *pStm, REFIID riid, void **ppv) { struct proxy_manager *This = impl_from_IMarshal( iface ); IMarshal *marshal; HRESULT hr; TRACE("(%p, %p, %s, %p)\n", This, pStm, wine_dbgstr_guid(riid), ppv); hr = StdMarshalImpl_Construct(&IID_IMarshal, This->dest_context, This->dest_context_data, (void**)&marshal); if(FAILED(hr)) return hr; hr = IMarshal_UnmarshalInterface(marshal, pStm, riid, ppv); IMarshal_Release(marshal); return hr; } static HRESULT WINAPI Proxy_ReleaseMarshalData(IMarshal *iface, IStream *pStm) { struct proxy_manager *This = impl_from_IMarshal( iface ); IMarshal *marshal; HRESULT hr; TRACE("(%p, %p)\n", This, pStm); hr = StdMarshalImpl_Construct(&IID_IMarshal, This->dest_context, This->dest_context_data, (void**)&marshal); if(FAILED(hr)) return hr; hr = IMarshal_ReleaseMarshalData(marshal, pStm); IMarshal_Release(marshal); return hr; } static HRESULT WINAPI Proxy_DisconnectObject(IMarshal *iface, DWORD dwReserved) { struct proxy_manager *This = impl_from_IMarshal( iface ); IMarshal *marshal; HRESULT hr; TRACE("%p, %#lx\n", This, dwReserved); hr = StdMarshalImpl_Construct(&IID_IMarshal, This->dest_context, This->dest_context_data, (void**)&marshal); if(FAILED(hr)) return hr; hr = IMarshal_DisconnectObject(marshal, dwReserved); IMarshal_Release(marshal); return hr; } static const IMarshalVtbl ProxyMarshal_Vtbl = { Proxy_QueryInterface, Proxy_AddRef, Proxy_Release, Proxy_GetUnmarshalClass, Proxy_GetMarshalSizeMax, Proxy_MarshalInterface, Proxy_UnmarshalInterface, Proxy_ReleaseMarshalData, Proxy_DisconnectObject }; static HRESULT WINAPI ProxyCliSec_QueryInterface(IClientSecurity *iface, REFIID riid, void **ppvObject) { struct proxy_manager *This = impl_from_IClientSecurity( iface ); return IMultiQI_QueryInterface(&This->IMultiQI_iface, riid, ppvObject); } static ULONG WINAPI ProxyCliSec_AddRef(IClientSecurity *iface) { struct proxy_manager *This = impl_from_IClientSecurity( iface ); return IMultiQI_AddRef(&This->IMultiQI_iface); } static ULONG WINAPI ProxyCliSec_Release(IClientSecurity *iface) { struct proxy_manager *This = impl_from_IClientSecurity( iface ); return IMultiQI_Release(&This->IMultiQI_iface); } static HRESULT WINAPI ProxyCliSec_QueryBlanket(IClientSecurity *iface, IUnknown *pProxy, DWORD *pAuthnSvc, DWORD *pAuthzSvc, OLECHAR **ppServerPrincName, DWORD *pAuthnLevel, DWORD *pImpLevel, void **pAuthInfo, DWORD *pCapabilities) { FIXME("(%p, %p, %p, %p, %p, %p, %p, %p): stub\n", pProxy, pAuthnSvc, pAuthzSvc, ppServerPrincName, pAuthnLevel, pImpLevel, pAuthInfo, pCapabilities); if (pAuthnSvc) *pAuthnSvc = 0; if (pAuthzSvc) *pAuthzSvc = 0; if (ppServerPrincName) *ppServerPrincName = NULL; if (pAuthnLevel) *pAuthnLevel = RPC_C_AUTHN_LEVEL_DEFAULT; if (pImpLevel) *pImpLevel = RPC_C_IMP_LEVEL_DEFAULT; if (pAuthInfo) *pAuthInfo = NULL; if (pCapabilities) *pCapabilities = EOAC_NONE; return E_NOTIMPL; } static HRESULT WINAPI ProxyCliSec_SetBlanket(IClientSecurity *iface, IUnknown *pProxy, DWORD AuthnSvc, DWORD AuthzSvc, OLECHAR *pServerPrincName, DWORD AuthnLevel, DWORD ImpLevel, void *pAuthInfo, DWORD Capabilities) { FIXME("%p, %ld, %ld, %s, %ld, %ld, %p, %#lx: stub\n", pProxy, AuthnSvc, AuthzSvc, pServerPrincName == COLE_DEFAULT_PRINCIPAL ? "<default principal>" : debugstr_w(pServerPrincName), AuthnLevel, ImpLevel, pAuthInfo, Capabilities); return E_NOTIMPL; } static HRESULT WINAPI ProxyCliSec_CopyProxy(IClientSecurity *iface, IUnknown *pProxy, IUnknown **ppCopy) { FIXME("(%p, %p): stub\n", pProxy, ppCopy); *ppCopy = NULL; return E_NOTIMPL; } static const IClientSecurityVtbl ProxyCliSec_Vtbl = { ProxyCliSec_QueryInterface, ProxyCliSec_AddRef, ProxyCliSec_Release, ProxyCliSec_QueryBlanket, ProxyCliSec_SetBlanket, ProxyCliSec_CopyProxy }; static HRESULT ifproxy_get_public_ref(struct ifproxy * This) { HRESULT hr = S_OK; if (WAIT_OBJECT_0 != WaitForSingleObject(This->parent->remoting_mutex, INFINITE)) { ERR("Wait failed for ifproxy %p\n", This); return E_UNEXPECTED; } if (This->refs == 0) { IRemUnknown *remunk = NULL; TRACE("getting public ref for ifproxy %p\n", This); hr = proxy_manager_get_remunknown(This->parent, &remunk); if (hr == S_OK) { HRESULT hrref = S_OK; REMINTERFACEREF rif; rif.ipid = This->stdobjref.ipid; rif.cPublicRefs = NORMALEXTREFS; rif.cPrivateRefs = 0; hr = IRemUnknown_RemAddRef(remunk, 1, &rif, &hrref); IRemUnknown_Release(remunk); if (hr == S_OK && hrref == S_OK) InterlockedExchangeAdd((LONG *)&This->refs, NORMALEXTREFS); else ERR("IRemUnknown_RemAddRef returned with %#lx, hrref = %#lx\n", hr, hrref); } } ReleaseMutex(This->parent->remoting_mutex); return hr; } static HRESULT ifproxy_release_public_refs(struct ifproxy * This) { HRESULT hr = S_OK; LONG public_refs; if (WAIT_OBJECT_0 != WaitForSingleObject(This->parent->remoting_mutex, INFINITE)) { ERR("Wait failed for ifproxy %p\n", This); return E_UNEXPECTED; } public_refs = This->refs; if (public_refs > 0) { IRemUnknown *remunk = NULL; TRACE("releasing %ld refs\n", public_refs); hr = proxy_manager_get_remunknown(This->parent, &remunk); if (hr == S_OK) { REMINTERFACEREF rif; rif.ipid = This->stdobjref.ipid; rif.cPublicRefs = public_refs; rif.cPrivateRefs = 0; hr = IRemUnknown_RemRelease(remunk, 1, &rif); IRemUnknown_Release(remunk); if (hr == S_OK) InterlockedExchangeAdd((LONG *)&This->refs, -public_refs); else if (hr == RPC_E_DISCONNECTED) WARN("couldn't release references because object was " "disconnected: oxid = %s, oid = %s\n", wine_dbgstr_longlong(This->parent->oxid), wine_dbgstr_longlong(This->parent->oid)); else ERR("IRemUnknown_RemRelease failed with error %#lx\n", hr); } } ReleaseMutex(This->parent->remoting_mutex); return hr; } /* should be called inside This->parent->cs critical section */ static void ifproxy_disconnect(struct ifproxy * This) { ifproxy_release_public_refs(This); if (This->proxy) IRpcProxyBuffer_Disconnect(This->proxy); IRpcChannelBuffer_Release(This->chan); This->chan = NULL; } /* should be called in This->parent->cs critical section if it is an entry in parent's list */ 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); if (This->chan) { IRpcChannelBuffer_Release(This->chan); This->chan = NULL; } if (This->proxy) IRpcProxyBuffer_Release(This->proxy); free(This); } static HRESULT proxy_manager_construct( struct apartment * apt, ULONG sorflags, OXID oxid, OID oid, const OXID_INFO *oxid_info, struct proxy_manager ** proxy_manager) { struct proxy_manager * This = malloc(sizeof(*This)); if (!This) return E_OUTOFMEMORY; This->remoting_mutex = CreateMutexW(NULL, FALSE, NULL); if (!This->remoting_mutex) { free(This); return HRESULT_FROM_WIN32(GetLastError()); } if (oxid_info) { This->oxid_info.dwPid = oxid_info->dwPid; This->oxid_info.dwTid = oxid_info->dwTid; This->oxid_info.ipidRemUnknown = oxid_info->ipidRemUnknown; This->oxid_info.dwAuthnHint = oxid_info->dwAuthnHint; This->oxid_info.psa = NULL /* FIXME: copy from oxid_info */; } else { HRESULT hr = rpc_resolve_oxid(oxid, &This->oxid_info); if (FAILED(hr)) { CloseHandle(This->remoting_mutex); free(This); return hr; } } This->IMultiQI_iface.lpVtbl = &ClientIdentity_Vtbl; This->IMarshal_iface.lpVtbl = &ProxyMarshal_Vtbl; This->IClientSecurity_iface.lpVtbl = &ProxyCliSec_Vtbl; list_init(&This->entry); list_init(&This->interfaces); InitializeCriticalSection(&This->cs); This->cs.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": proxy_manager"); /* 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; /* the DCOM draft specification states that the SORF_NOPING flag is * proxy manager specific, not ifproxy specific, so this implies that we * should store the STDOBJREF flags here in the proxy manager. */ This->sorflags = sorflags; /* we create the IRemUnknown proxy on demand */ This->remunk = NULL; /* initialise these values to the weakest values and they will be * overwritten in proxy_manager_set_context */ This->dest_context = MSHCTX_INPROC; This->dest_context_data = NULL; EnterCriticalSection(&apt->cs); /* FIXME: we are dependent on the ordering in here to make sure a proxy's * IRemUnknown proxy doesn't get destroyed before the regular proxy does * because we need the IRemUnknown proxy during the destruction of the * regular proxy. Ideally, we should maintain a separate list for the * IRemUnknown proxies that need late destruction */ list_add_tail(&apt->proxies, &This->entry); LeaveCriticalSection(&apt->cs); TRACE("%p created for OXID %s, OID %s\n", This, wine_dbgstr_longlong(oxid), wine_dbgstr_longlong(oid)); *proxy_manager = This; return S_OK; } static inline void proxy_manager_set_context(struct proxy_manager *This, MSHCTX dest_context, void *dest_context_data) { MSHCTX old_dest_context; MSHCTX new_dest_context; do { old_dest_context = This->dest_context; new_dest_context = old_dest_context; /* "stronger" values overwrite "weaker" values. stronger values are * ones that disable more optimisations */ switch (old_dest_context) { case MSHCTX_INPROC: new_dest_context = dest_context; break; case MSHCTX_CROSSCTX: switch (dest_context) { case MSHCTX_INPROC: break; default: new_dest_context = dest_context; } break; case MSHCTX_LOCAL: switch (dest_context) { case MSHCTX_INPROC: case MSHCTX_CROSSCTX: break; default: new_dest_context = dest_context; } break; case MSHCTX_NOSHAREDMEM: switch (dest_context) { case MSHCTX_DIFFERENTMACHINE: new_dest_context = dest_context; break; default: break; } break; default: break; } if (old_dest_context == new_dest_context) break; new_dest_context = InterlockedCompareExchange((PLONG)&This->dest_context, new_dest_context, old_dest_context); } while (new_dest_context != old_dest_context); if (dest_context_data) InterlockedExchangePointer(&This->dest_context_data, dest_context_data); } static HRESULT proxy_manager_query_local_interface(struct proxy_manager * This, REFIID riid, void ** ppv) { HRESULT hr; struct ifproxy * ifproxy; TRACE("%s\n", debugstr_guid(riid)); if (IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IMultiQI)) { *ppv = &This->IMultiQI_iface; IMultiQI_AddRef(&This->IMultiQI_iface); return S_OK; } if (IsEqualIID(riid, &IID_IMarshal)) { *ppv = &This->IMarshal_iface; IMarshal_AddRef(&This->IMarshal_iface); return S_OK; } if (IsEqualIID(riid, &IID_IClientSecurity)) { *ppv = &This->IClientSecurity_iface; IClientSecurity_AddRef(&This->IClientSecurity_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; } *ppv = NULL; return E_NOINTERFACE; } static HRESULT proxy_manager_create_ifproxy( struct proxy_manager * This, const STDOBJREF *stdobjref, REFIID riid, IRpcChannelBuffer * channel, struct ifproxy ** iif_out) { HRESULT hr; IPSFactoryBuffer * psfb; struct ifproxy * ifproxy = malloc(sizeof(*ifproxy)); if (!ifproxy) return E_OUTOFMEMORY; list_init(&ifproxy->entry); ifproxy->parent = This; ifproxy->stdobjref = *stdobjref; ifproxy->iid = *riid; ifproxy->refs = 0; ifproxy->proxy = NULL; assert(channel); ifproxy->chan = channel; /* FIXME: we should take the binding strings and construct the channel in this function */ /* the IUnknown interface is special because it does not have a * proxy associated with the ifproxy as we handle IUnknown ourselves */ if (IsEqualIID(riid, &IID_IUnknown)) { ifproxy->iface = &This->IMultiQI_iface; IMultiQI_AddRef(&This->IMultiQI_iface); hr = S_OK; } else { 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->IMultiQI_iface, riid, &ifproxy->proxy, &ifproxy->iface); IPSFactoryBuffer_Release(psfb); if (hr != S_OK) ERR("Could not create proxy for interface %s, error %#lx\n", debugstr_guid(riid), hr); } else ERR("Could not get IPSFactoryBuffer for interface %s, error %#lx\n", debugstr_guid(riid), hr); if (hr == S_OK) hr = IRpcProxyBuffer_Connect(ifproxy->proxy, ifproxy->chan); } 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(&stdobjref->ipid), debugstr_guid(riid), stdobjref->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 ifproxy *ifproxy; EnterCriticalSection(&This->cs); LIST_FOR_EACH_ENTRY(ifproxy, &This->interfaces, 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 ifproxy *ifproxy; TRACE("oxid = %s, oid = %s\n", wine_dbgstr_longlong(This->oxid), wine_dbgstr_longlong(This->oid)); EnterCriticalSection(&This->cs); /* SORFP_NOLIFTIMEMGMT proxies (for IRemUnknown) shouldn't be * disconnected - it won't do anything anyway, except cause * problems for other objects that depend on this proxy always * working */ if (!(This->sorflags & SORFP_NOLIFETIMEMGMT)) { LIST_FOR_EACH_ENTRY(ifproxy, &This->interfaces, struct ifproxy, entry) { ifproxy_disconnect(ifproxy); } } /* apartment is being destroyed so don't keep a pointer around to it */ This->parent = NULL; LeaveCriticalSection(&This->cs); } static HRESULT proxy_manager_get_remunknown(struct proxy_manager * This, IRemUnknown **remunk) { HRESULT hr = S_OK; struct apartment *apt; BOOL called_in_original_apt; /* we don't want to try and unmarshal or use IRemUnknown if we don't want * lifetime management */ if (This->sorflags & SORFP_NOLIFETIMEMGMT) return S_FALSE; if (!(apt = apartment_get_current_or_mta())) return CO_E_NOTINITIALIZED; called_in_original_apt = This->parent && (This->parent->oxid == apt->oxid); EnterCriticalSection(&This->cs); /* only return the cached object if called from the original apartment. * in future, we might want to make the IRemUnknown proxy callable from any * apartment to avoid these checks */ if (This->remunk && called_in_original_apt) { /* already created - return existing object */ *remunk = This->remunk; IRemUnknown_AddRef(*remunk); } else if (!This->parent) { /* disconnected - we can't create IRemUnknown */ *remunk = NULL; hr = S_FALSE; } else { STDOBJREF stdobjref; /* Don't want IRemUnknown lifetime management as this is IRemUnknown! * We also don't care about whether or not the stub is still alive */ stdobjref.flags = SORFP_NOLIFETIMEMGMT | SORF_NOPING; stdobjref.cPublicRefs = 1; /* oxid of destination object */ stdobjref.oxid = This->oxid; /* FIXME: what should be used for the oid? The DCOM draft doesn't say */ stdobjref.oid = (OID)-1; stdobjref.ipid = This->oxid_info.ipidRemUnknown; /* do the unmarshal */ hr = unmarshal_object(&stdobjref, apt, This->dest_context, This->dest_context_data, &IID_IRemUnknown, &This->oxid_info, (void**)remunk); if (hr == S_OK && called_in_original_apt) { This->remunk = *remunk; IRemUnknown_AddRef(This->remunk); } } LeaveCriticalSection(&This->cs); apartment_release(apt); TRACE("got IRemUnknown* pointer %p, hr = %#lx\n", *remunk, hr); return hr; } /* destroys a proxy manager, freeing the memory it used. * Note: this function should not be called from a list iteration in the * apartment, due to the fact that it removes itself from the apartment and * it could add a proxy to IRemUnknown into the apartment. */ static void proxy_manager_destroy(struct proxy_manager * This) { struct list * cursor; TRACE("oxid = %s, oid = %s\n", wine_dbgstr_longlong(This->oxid), wine_dbgstr_longlong(This->oid)); 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->remunk) IRemUnknown_Release(This->remunk); CoTaskMemFree(This->oxid_info.psa); This->cs.DebugInfo->Spare[0] = 0; DeleteCriticalSection(&This->cs); CloseHandle(This->remoting_mutex); free(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(struct apartment * apt, OXID oxid, OID oid, struct proxy_manager ** proxy_found) { struct proxy_manager *proxy; BOOL found = FALSE; EnterCriticalSection(&apt->cs); LIST_FOR_EACH_ENTRY(proxy, &apt->proxies, struct proxy_manager, entry) { if ((oxid == proxy->oxid) && (oid == proxy->oid)) { /* be careful of a race with ClientIdentity_Release, which would * cause us to return a proxy which is in the process of being * destroyed */ if (IMultiQI_AddRef(&proxy->IMultiQI_iface) != 0) { *proxy_found = proxy; found = TRUE; break; } } } LeaveCriticalSection(&apt->cs); return found; } HRESULT apartment_disconnectproxies(struct apartment *apt) { struct proxy_manager *proxy; LIST_FOR_EACH_ENTRY(proxy, &apt->proxies, struct proxy_manager, entry) { proxy_manager_disconnect(proxy); } return S_OK; } /********************** StdMarshal implementation ****************************/ struct stdmarshal { IMarshal IMarshal_iface; LONG refcount; DWORD dest_context; void *dest_context_data; }; static inline struct stdmarshal *impl_from_StdMarshal(IMarshal *iface) { return CONTAINING_RECORD(iface, struct stdmarshal, IMarshal_iface); } static HRESULT WINAPI StdMarshalImpl_QueryInterface(IMarshal *iface, REFIID riid, void **ppv) { *ppv = NULL; if (IsEqualIID(&IID_IUnknown, riid) || IsEqualIID(&IID_IMarshal, riid)) { *ppv = iface; IMarshal_AddRef(iface); return S_OK; } FIXME("No interface for %s.\n", debugstr_guid(riid)); return E_NOINTERFACE; } static ULONG WINAPI StdMarshalImpl_AddRef(IMarshal *iface) { struct stdmarshal *marshal = impl_from_StdMarshal(iface); return InterlockedIncrement(&marshal->refcount); } static ULONG WINAPI StdMarshalImpl_Release(IMarshal *iface) { struct stdmarshal *marshal = impl_from_StdMarshal(iface); ULONG refcount = InterlockedDecrement(&marshal->refcount); if (!refcount) free(marshal); return refcount; } static HRESULT WINAPI StdMarshalImpl_GetUnmarshalClass(IMarshal *iface, REFIID riid, void *pv, DWORD dwDestContext, void *pvDestContext, DWORD mshlflags, CLSID *pCid) { *pCid = CLSID_StdMarshal; return S_OK; } static HRESULT WINAPI StdMarshalImpl_GetMarshalSizeMax(IMarshal *iface, REFIID riid, void *pv, DWORD dwDestContext, void *pvDestContext, DWORD mshlflags, DWORD *pSize) { *pSize = FIELD_OFFSET(OBJREF, u_objref.u_standard.saResAddr.aStringArray); return S_OK; } static HRESULT WINAPI StdMarshalImpl_MarshalInterface(IMarshal *iface, IStream *stream, REFIID riid, void *pv, DWORD dest_context, void *dest_context_data, DWORD mshlflags) { ULONG res; HRESULT hr; OBJREF objref; struct apartment *apt; TRACE("(...,%s,...)\n", debugstr_guid(riid)); if (!(apt = apartment_get_current_or_mta())) { ERR("Apartment not initialized\n"); return CO_E_NOTINITIALIZED; } /* make sure this apartment can be reached from other threads / processes */ rpc_start_remoting(apt); fill_std_objref(&objref, riid, NULL); hr = marshal_object(apt, &objref.u_objref.u_standard.std, riid, pv, dest_context, dest_context_data, mshlflags); apartment_release(apt); if (hr != S_OK) { ERR("Failed to create ifstub, hr %#lx\n", hr); return hr; } return IStream_Write(stream, &objref, FIELD_OFFSET(OBJREF, u_objref.u_standard.saResAddr.aStringArray), &res); } /* helper for StdMarshalImpl_UnmarshalInterface - does the unmarshaling with * no questions asked about the rules surrounding same-apartment unmarshals * and table marshaling */ static HRESULT unmarshal_object(const STDOBJREF *stdobjref, struct apartment *apt, MSHCTX dest_context, void *dest_context_data, REFIID riid, const OXID_INFO *oxid_info, void **object) { struct proxy_manager *proxy_manager = NULL; HRESULT hr = S_OK; assert(apt); TRACE("stdobjref: flags = %#lx cPublicRefs = %ld oxid = %s oid = %s ipid = %s\n", stdobjref->flags, stdobjref->cPublicRefs, wine_dbgstr_longlong(stdobjref->oxid), wine_dbgstr_longlong(stdobjref->oid), debugstr_guid(&stdobjref->ipid)); /* create a new proxy manager if one doesn't already exist for the * object */ if (!find_proxy_manager(apt, stdobjref->oxid, stdobjref->oid, &proxy_manager)) { hr = proxy_manager_construct(apt, stdobjref->flags, stdobjref->oxid, stdobjref->oid, oxid_info, &proxy_manager); } else TRACE("proxy manager already created, using\n"); if (hr == S_OK) { struct ifproxy * ifproxy; proxy_manager_set_context(proxy_manager, dest_context, dest_context_data); hr = proxy_manager_find_ifproxy(proxy_manager, riid, &ifproxy); if (hr == E_NOINTERFACE) { IRpcChannelBuffer *chanbuf; hr = rpc_create_clientchannel(&stdobjref->oxid, &stdobjref->ipid, &proxy_manager->oxid_info, riid, proxy_manager->dest_context, proxy_manager->dest_context_data, &chanbuf, apt); if (hr == S_OK) hr = proxy_manager_create_ifproxy(proxy_manager, stdobjref, riid, chanbuf, &ifproxy); } else IUnknown_AddRef((IUnknown *)ifproxy->iface); if (hr == S_OK) { InterlockedExchangeAdd((LONG *)&ifproxy->refs, stdobjref->cPublicRefs); /* get at least one external reference to the object to keep it alive */ hr = ifproxy_get_public_ref(ifproxy); if (FAILED(hr)) ifproxy_destroy(ifproxy); } if (hr == S_OK) *object = ifproxy->iface; } /* release our reference to the proxy manager - the client/apartment * will hold on to the remaining reference for us */ if (proxy_manager) IMultiQI_Release(&proxy_manager->IMultiQI_iface); return hr; } static HRESULT WINAPI StdMarshalImpl_UnmarshalInterface(IMarshal *iface, IStream *stream, REFIID riid, void **ppv) { struct stdmarshal *marshal = impl_from_StdMarshal(iface); OBJREF objref; HRESULT hr; ULONG res; hr = IStream_Read(stream, &objref, FIELD_OFFSET(OBJREF, u_objref), &res); if (hr != S_OK || (res != FIELD_OFFSET(OBJREF, u_objref))) { ERR("Failed to read common OBJREF header, %#lx\n", hr); return STG_E_READFAULT; } if (objref.signature != OBJREF_SIGNATURE) { ERR("Bad OBJREF signature %#lx\n", objref.signature); return RPC_E_INVALID_OBJREF; } if (!(objref.flags & OBJREF_STANDARD)) { FIXME("unsupported objref.flags = %lx\n", objref.flags); return E_NOTIMPL; } return std_unmarshal_interface(marshal->dest_context, marshal->dest_context_data, stream, riid, ppv); } static HRESULT WINAPI StdMarshalImpl_ReleaseMarshalData(IMarshal *iface, IStream *stream) { OBJREF objref; HRESULT hr; ULONG res; TRACE("%p, %p\n", iface, stream); hr = IStream_Read(stream, &objref, FIELD_OFFSET(OBJREF, u_objref), &res); if (hr != S_OK || (res != FIELD_OFFSET(OBJREF, u_objref))) { ERR("Failed to read common OBJREF header, %#lx\n", hr); return STG_E_READFAULT; } if (objref.signature != OBJREF_SIGNATURE) { ERR("Bad OBJREF signature %#lx\n", objref.signature); return RPC_E_INVALID_OBJREF; } if (!(objref.flags & OBJREF_STANDARD)) { FIXME("unsupported objref.flags = %lx\n", objref.flags); return E_NOTIMPL; } return std_release_marshal_data(stream); } static HRESULT WINAPI StdMarshalImpl_DisconnectObject(IMarshal *iface, DWORD reserved) { FIXME("(), stub!\n"); return S_OK; } static const IMarshalVtbl StdMarshalVtbl = { StdMarshalImpl_QueryInterface, StdMarshalImpl_AddRef, StdMarshalImpl_Release, StdMarshalImpl_GetUnmarshalClass, StdMarshalImpl_GetMarshalSizeMax, StdMarshalImpl_MarshalInterface, StdMarshalImpl_UnmarshalInterface, StdMarshalImpl_ReleaseMarshalData, StdMarshalImpl_DisconnectObject }; static HRESULT StdMarshalImpl_Construct(REFIID riid, DWORD dest_context, void *dest_context_data, void **ppvObject) { struct stdmarshal *object; HRESULT hr; object = malloc(sizeof(*object)); if (!object) return E_OUTOFMEMORY; object->IMarshal_iface.lpVtbl = &StdMarshalVtbl; object->refcount = 1; object->dest_context = dest_context; object->dest_context_data = dest_context_data; hr = IMarshal_QueryInterface(&object->IMarshal_iface, riid, ppvObject); IMarshal_Release(&object->IMarshal_iface); return hr; } HRESULT WINAPI InternalCoStdMarshalObject(REFIID riid, DWORD dest_context, void *dest_context_data, void **ppvObject) { return StdMarshalImpl_Construct(riid, dest_context, dest_context_data, ppvObject); } /*********************************************************************** * CoGetStandardMarshal (combase.@) */ HRESULT WINAPI CoGetStandardMarshal(REFIID riid, IUnknown *pUnk, DWORD dwDestContext, void *dest_context, DWORD flags, IMarshal **marshal) { if (pUnk == NULL) { FIXME("%s, NULL, %lx, %p, %lx, %p, unimplemented yet.\n", debugstr_guid(riid), dwDestContext, dest_context, flags, marshal); return E_NOTIMPL; } TRACE("%s, %p, %lx, %p, %lx, %p\n", debugstr_guid(riid), pUnk, dwDestContext, dest_context, flags, marshal); return StdMarshalImpl_Construct(&IID_IMarshal, dwDestContext, dest_context, (void **)marshal); }