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/*
* RPC Manager
*
* Copyright 2001 Ove Kåven, TransGaming Technologies
* Copyright 2002 Marcus Meissner
* Copyright 2005 Mike Hearn, 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 "wine/port.h"
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#define COBJMACROS
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "winsvc.h"
#include "objbase.h"
#include "ole2.h"
#include "rpc.h"
#include "winerror.h"
#include "winreg.h"
#include "wtypes.h"
#include "excpt.h"
#include "wine/unicode.h"
#include "wine/exception.h"
#include "compobj_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(ole);
static void __RPC_STUB dispatch_rpc(RPC_MESSAGE *msg);
/* we only use one function to dispatch calls for all methods - we use the
* RPC_IF_OLE flag to tell the RPC runtime that this is the case */
static RPC_DISPATCH_FUNCTION rpc_dispatch_table[1] = { dispatch_rpc }; /* (RO) */
static RPC_DISPATCH_TABLE rpc_dispatch = { 1, rpc_dispatch_table }; /* (RO) */
static struct list registered_interfaces = LIST_INIT(registered_interfaces); /* (CS csRegIf) */
static CRITICAL_SECTION csRegIf;
static CRITICAL_SECTION_DEBUG csRegIf_debug =
{
0, 0, &csRegIf,
{ &csRegIf_debug.ProcessLocksList, &csRegIf_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": dcom registered server interfaces") }
};
static CRITICAL_SECTION csRegIf = { &csRegIf_debug, -1, 0, 0, 0, 0 };
static WCHAR wszPipeTransport[] = {'n','c','a','c','n','_','n','p',0};
struct registered_if
{
struct list entry;
DWORD refs; /* ref count */
RPC_SERVER_INTERFACE If; /* interface registered with the RPC runtime */
};
/* get the pipe endpoint specified of the specified apartment */
static inline void get_rpc_endpoint(LPWSTR endpoint, const OXID *oxid)
{
/* FIXME: should get endpoint from rpcss */
static const WCHAR wszEndpointFormat[] = {'\\','p','i','p','e','\\','O','L','E','_','%','0','8','l','x','%','0','8','l','x',0};
wsprintfW(endpoint, wszEndpointFormat, (DWORD)(*oxid >> 32),(DWORD)*oxid);
}
typedef struct
{
const IRpcChannelBufferVtbl *lpVtbl;
LONG refs;
} RpcChannelBuffer;
typedef struct
{
RpcChannelBuffer super; /* superclass */
RPC_BINDING_HANDLE bind; /* handle to the remote server */
OXID oxid; /* apartment in which the channel is valid */
DWORD dest_context; /* returned from GetDestCtx */
LPVOID dest_context_data; /* returned from GetDestCtx */
} ClientRpcChannelBuffer;
struct dispatch_params
{
RPCOLEMESSAGE *msg; /* message */
IRpcStubBuffer *stub; /* stub buffer, if applicable */
IRpcChannelBuffer *chan; /* server channel buffer, if applicable */
HANDLE handle; /* handle that will become signaled when call finishes */
RPC_STATUS status; /* status (out) */
HRESULT hr; /* hresult (out) */
};
static WINE_EXCEPTION_FILTER(ole_filter)
{
if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION)
return EXCEPTION_CONTINUE_SEARCH;
return EXCEPTION_EXECUTE_HANDLER;
}
static HRESULT WINAPI RpcChannelBuffer_QueryInterface(LPRPCCHANNELBUFFER iface, REFIID riid, LPVOID *ppv)
{
*ppv = NULL;
if (IsEqualIID(riid,&IID_IRpcChannelBuffer) || IsEqualIID(riid,&IID_IUnknown))
{
*ppv = (LPVOID)iface;
IUnknown_AddRef(iface);
return S_OK;
}
return E_NOINTERFACE;
}
static ULONG WINAPI RpcChannelBuffer_AddRef(LPRPCCHANNELBUFFER iface)
{
RpcChannelBuffer *This = (RpcChannelBuffer *)iface;
return InterlockedIncrement(&This->refs);
}
static ULONG WINAPI ServerRpcChannelBuffer_Release(LPRPCCHANNELBUFFER iface)
{
RpcChannelBuffer *This = (RpcChannelBuffer *)iface;
ULONG ref;
ref = InterlockedDecrement(&This->refs);
if (ref)
return ref;
HeapFree(GetProcessHeap(), 0, This);
return 0;
}
static ULONG WINAPI ClientRpcChannelBuffer_Release(LPRPCCHANNELBUFFER iface)
{
ClientRpcChannelBuffer *This = (ClientRpcChannelBuffer *)iface;
ULONG ref;
ref = InterlockedDecrement(&This->super.refs);
if (ref)
return ref;
RpcBindingFree(&This->bind);
HeapFree(GetProcessHeap(), 0, This);
return 0;
}
static HRESULT WINAPI ServerRpcChannelBuffer_GetBuffer(LPRPCCHANNELBUFFER iface, RPCOLEMESSAGE* olemsg, REFIID riid)
{
RpcChannelBuffer *This = (RpcChannelBuffer *)iface;
RPC_MESSAGE *msg = (RPC_MESSAGE *)olemsg;
RPC_STATUS status;
TRACE("(%p)->(%p,%s)\n", This, olemsg, debugstr_guid(riid));
status = I_RpcGetBuffer(msg);
TRACE("-- %ld\n", status);
return HRESULT_FROM_WIN32(status);
}
static HRESULT WINAPI ClientRpcChannelBuffer_GetBuffer(LPRPCCHANNELBUFFER iface, RPCOLEMESSAGE* olemsg, REFIID riid)
{
ClientRpcChannelBuffer *This = (ClientRpcChannelBuffer *)iface;
RPC_MESSAGE *msg = (RPC_MESSAGE *)olemsg;
RPC_CLIENT_INTERFACE *cif;
RPC_STATUS status;
TRACE("(%p)->(%p,%s)\n", This, olemsg, debugstr_guid(riid));
cif = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(RPC_CLIENT_INTERFACE));
if (!cif)
return E_OUTOFMEMORY;
cif->Length = sizeof(RPC_CLIENT_INTERFACE);
/* RPC interface ID = COM interface ID */
cif->InterfaceId.SyntaxGUID = *riid;
/* COM objects always have a version of 0.0 */
cif->InterfaceId.SyntaxVersion.MajorVersion = 0;
cif->InterfaceId.SyntaxVersion.MinorVersion = 0;
msg->RpcInterfaceInformation = cif;
msg->Handle = This->bind;
status = I_RpcGetBuffer(msg);
TRACE("-- %ld\n", status);
return HRESULT_FROM_WIN32(status);
}
static HRESULT WINAPI ServerRpcChannelBuffer_SendReceive(LPRPCCHANNELBUFFER iface, RPCOLEMESSAGE *olemsg, ULONG *pstatus)
{
FIXME("stub\n");
return E_NOTIMPL;
}
/* this thread runs an outgoing RPC */
static DWORD WINAPI rpc_sendreceive_thread(LPVOID param)
{
struct dispatch_params *data = (struct dispatch_params *) param;
/* FIXME: trap and rethrow RPC exceptions in app thread */
data->status = I_RpcSendReceive((RPC_MESSAGE *)data->msg);
TRACE("completed with status 0x%lx\n", data->status);
SetEvent(data->handle);
return 0;
}
static inline HRESULT ClientRpcChannelBuffer_IsCorrectApartment(ClientRpcChannelBuffer *This, APARTMENT *apt)
{
OXID oxid;
if (!apt)
return S_FALSE;
if (apartment_getoxid(apt, &oxid) != S_OK)
return S_FALSE;
if (This->oxid != oxid)
return S_FALSE;
return S_OK;
}
static HRESULT WINAPI ClientRpcChannelBuffer_SendReceive(LPRPCCHANNELBUFFER iface, RPCOLEMESSAGE *olemsg, ULONG *pstatus)
{
ClientRpcChannelBuffer *This = (ClientRpcChannelBuffer *)iface;
HRESULT hr;
RPC_MESSAGE *msg = (RPC_MESSAGE *)olemsg;
RPC_STATUS status;
DWORD index;
struct dispatch_params *params;
APARTMENT *apt = NULL;
IPID ipid;
TRACE("(%p) iMethod=%ld\n", olemsg, olemsg->iMethod);
hr = ClientRpcChannelBuffer_IsCorrectApartment(This, COM_CurrentApt());
if (hr != S_OK)
{
ERR("called from wrong apartment, should have been 0x%s\n",
wine_dbgstr_longlong(This->oxid));
return RPC_E_WRONG_THREAD;
}
params = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*params));
if (!params) return E_OUTOFMEMORY;
params->msg = olemsg;
params->status = RPC_S_OK;
params->hr = S_OK;
/* Note: this is an optimization in the Microsoft OLE runtime that we need
* to copy, as shown by the test_no_couninitialize_client test. without
* short-circuiting the RPC runtime in the case below, the test will
* deadlock on the loader lock due to the RPC runtime needing to create
* a thread to process the RPC when this function is called indirectly
* from DllMain */
RpcBindingInqObject(msg->Handle, &ipid);
hr = ipid_get_dispatch_params(&ipid, &apt, &params->stub, &params->chan);
params->handle = CreateEventW(NULL, FALSE, FALSE, NULL);
if ((hr == S_OK) && !apt->multi_threaded)
{
TRACE("Calling apartment thread 0x%08lx...\n", apt->tid);
if (!PostMessageW(apartment_getwindow(apt), DM_EXECUTERPC, 0, (LPARAM)params))
{
ERR("PostMessage failed with error %ld\n", GetLastError());
hr = HRESULT_FROM_WIN32(GetLastError());
}
}
else
{
if (hr == S_OK)
{
/* otherwise, we go via RPC runtime so the stub and channel aren't
* needed here */
IRpcStubBuffer_Release(params->stub);
params->stub = NULL;
IRpcChannelBuffer_Release(params->chan);
params->chan = NULL;
}
/* we use a separate thread here because we need to be able to
* pump the message loop in the application thread: if we do not,
* any windows created by this thread will hang and RPCs that try
* and re-enter this STA from an incoming server thread will
* deadlock. InstallShield is an example of that.
*/
if (!QueueUserWorkItem(rpc_sendreceive_thread, params, WT_EXECUTEDEFAULT))
{
ERR("QueueUserWorkItem failed with error %lx\n", GetLastError());
hr = E_UNEXPECTED;
}
else
hr = S_OK;
}
if (apt) apartment_release(apt);
if (hr == S_OK)
{
if (WaitForSingleObject(params->handle, 0))
hr = CoWaitForMultipleHandles(0, INFINITE, 1, &params->handle, &index);
}
CloseHandle(params->handle);
if (hr == S_OK) hr = params->hr;
status = params->status;
HeapFree(GetProcessHeap(), 0, params);
params = NULL;
if (hr) return hr;
if (pstatus) *pstatus = status;
TRACE("RPC call status: 0x%lx\n", status);
if (status == RPC_S_OK)
hr = S_OK;
else if (status == RPC_S_CALL_FAILED)
hr = *(HRESULT *)olemsg->Buffer;
else
hr = HRESULT_FROM_WIN32(status);
TRACE("-- 0x%08lx\n", hr);
return hr;
}
static HRESULT WINAPI ServerRpcChannelBuffer_FreeBuffer(LPRPCCHANNELBUFFER iface, RPCOLEMESSAGE* olemsg)
{
RPC_MESSAGE *msg = (RPC_MESSAGE *)olemsg;
RPC_STATUS status;
TRACE("(%p)\n", msg);
status = I_RpcFreeBuffer(msg);
TRACE("-- %ld\n", status);
return HRESULT_FROM_WIN32(status);
}
static HRESULT WINAPI ClientRpcChannelBuffer_FreeBuffer(LPRPCCHANNELBUFFER iface, RPCOLEMESSAGE* olemsg)
{
RPC_MESSAGE *msg = (RPC_MESSAGE *)olemsg;
RPC_STATUS status;
TRACE("(%p)\n", msg);
status = I_RpcFreeBuffer(msg);
HeapFree(GetProcessHeap(), 0, msg->RpcInterfaceInformation);
msg->RpcInterfaceInformation = NULL;
TRACE("-- %ld\n", status);
return HRESULT_FROM_WIN32(status);
}
static HRESULT WINAPI ClientRpcChannelBuffer_GetDestCtx(LPRPCCHANNELBUFFER iface, DWORD* pdwDestContext, void** ppvDestContext)
{
ClientRpcChannelBuffer *This = (ClientRpcChannelBuffer *)iface;
TRACE("(%p,%p)\n", pdwDestContext, ppvDestContext);
*pdwDestContext = This->dest_context;
*ppvDestContext = This->dest_context_data;
return S_OK;
}
static HRESULT WINAPI ServerRpcChannelBuffer_GetDestCtx(LPRPCCHANNELBUFFER iface, DWORD* pdwDestContext, void** ppvDestContext)
{
FIXME("(%p,%p), stub!\n", pdwDestContext, ppvDestContext);
return E_FAIL;
}
static HRESULT WINAPI RpcChannelBuffer_IsConnected(LPRPCCHANNELBUFFER iface)
{
TRACE("()\n");
/* native does nothing too */
return S_OK;
}
static const IRpcChannelBufferVtbl ClientRpcChannelBufferVtbl =
{
RpcChannelBuffer_QueryInterface,
RpcChannelBuffer_AddRef,
ClientRpcChannelBuffer_Release,
ClientRpcChannelBuffer_GetBuffer,
ClientRpcChannelBuffer_SendReceive,
ClientRpcChannelBuffer_FreeBuffer,
ClientRpcChannelBuffer_GetDestCtx,
RpcChannelBuffer_IsConnected
};
static const IRpcChannelBufferVtbl ServerRpcChannelBufferVtbl =
{
RpcChannelBuffer_QueryInterface,
RpcChannelBuffer_AddRef,
ServerRpcChannelBuffer_Release,
ServerRpcChannelBuffer_GetBuffer,
ServerRpcChannelBuffer_SendReceive,
ServerRpcChannelBuffer_FreeBuffer,
ServerRpcChannelBuffer_GetDestCtx,
RpcChannelBuffer_IsConnected
};
/* returns a channel buffer for proxies */
HRESULT RPC_CreateClientChannel(const OXID *oxid, const IPID *ipid,
DWORD dest_context, void *dest_context_data,
IRpcChannelBuffer **chan)
{
ClientRpcChannelBuffer *This;
WCHAR endpoint[200];
RPC_BINDING_HANDLE bind;
RPC_STATUS status;
LPWSTR string_binding;
/* connect to the apartment listener thread */
get_rpc_endpoint(endpoint, oxid);
TRACE("proxy pipe: connecting to endpoint: %s\n", debugstr_w(endpoint));
status = RpcStringBindingComposeW(
NULL,
wszPipeTransport,
NULL,
endpoint,
NULL,
&string_binding);
if (status == RPC_S_OK)
{
status = RpcBindingFromStringBindingW(string_binding, &bind);
if (status == RPC_S_OK)
{
IPID ipid2 = *ipid; /* why can't RpcBindingSetObject take a const? */
status = RpcBindingSetObject(bind, &ipid2);
if (status != RPC_S_OK)
RpcBindingFree(&bind);
}
RpcStringFreeW(&string_binding);
}
if (status != RPC_S_OK)
{
ERR("Couldn't get binding for endpoint %s, status = %ld\n", debugstr_w(endpoint), status);
return HRESULT_FROM_WIN32(status);
}
This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
if (!This)
{
RpcBindingFree(&bind);
return E_OUTOFMEMORY;
}
This->super.lpVtbl = &ClientRpcChannelBufferVtbl;
This->super.refs = 1;
This->bind = bind;
apartment_getoxid(COM_CurrentApt(), &This->oxid);
This->dest_context = dest_context;
This->dest_context_data = dest_context_data;
*chan = (IRpcChannelBuffer*)This;
return S_OK;
}
HRESULT RPC_CreateServerChannel(IRpcChannelBuffer **chan)
{
RpcChannelBuffer *This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
if (!This)
return E_OUTOFMEMORY;
This->lpVtbl = &ServerRpcChannelBufferVtbl;
This->refs = 1;
*chan = (IRpcChannelBuffer*)This;
return S_OK;
}
void RPC_ExecuteCall(struct dispatch_params *params)
{
__TRY
{
params->hr = IRpcStubBuffer_Invoke(params->stub, params->msg, params->chan);
}
__EXCEPT(ole_filter)
{
params->hr = GetExceptionCode();
}
__ENDTRY
IRpcStubBuffer_Release(params->stub);
IRpcChannelBuffer_Release(params->chan);
if (params->handle) SetEvent(params->handle);
}
static void __RPC_STUB dispatch_rpc(RPC_MESSAGE *msg)
{
struct dispatch_params *params;
APARTMENT *apt;
IPID ipid;
HRESULT hr;
RpcBindingInqObject(msg->Handle, &ipid);
TRACE("ipid = %s, iMethod = %d\n", debugstr_guid(&ipid), msg->ProcNum);
params = HeapAlloc(GetProcessHeap(), 0, sizeof(*params));
if (!params) return RpcRaiseException(E_OUTOFMEMORY);
hr = ipid_get_dispatch_params(&ipid, &apt, &params->stub, &params->chan);
if (hr != S_OK)
{
ERR("no apartment found for ipid %s\n", debugstr_guid(&ipid));
return RpcRaiseException(hr);
}
params->msg = (RPCOLEMESSAGE *)msg;
params->status = RPC_S_OK;
params->hr = S_OK;
params->handle = NULL;
/* Note: this is the important difference between STAs and MTAs - we
* always execute RPCs to STAs in the thread that originally created the
* apartment (i.e. the one that pumps messages to the window) */
if (!apt->multi_threaded)
{
params->handle = CreateEventW(NULL, FALSE, FALSE, NULL);
TRACE("Calling apartment thread 0x%08lx...\n", apt->tid);
if (PostMessageW(apartment_getwindow(apt), DM_EXECUTERPC, 0, (LPARAM)params))
WaitForSingleObject(params->handle, INFINITE);
else
{
ERR("PostMessage failed with error %ld\n", GetLastError());
IRpcChannelBuffer_Release(params->chan);
IRpcStubBuffer_Release(params->stub);
}
CloseHandle(params->handle);
}
else
{
BOOL joined = FALSE;
if (!COM_CurrentInfo()->apt)
{
apartment_joinmta();
joined = TRUE;
}
RPC_ExecuteCall(params);
if (joined)
{
apartment_release(COM_CurrentInfo()->apt);
COM_CurrentInfo()->apt = NULL;
}
}
HeapFree(GetProcessHeap(), 0, params);
apartment_release(apt);
}
/* stub registration */
HRESULT RPC_RegisterInterface(REFIID riid)
{
struct registered_if *rif;
BOOL found = FALSE;
HRESULT hr = S_OK;
TRACE("(%s)\n", debugstr_guid(riid));
EnterCriticalSection(&csRegIf);
LIST_FOR_EACH_ENTRY(rif, &registered_interfaces, struct registered_if, entry)
{
if (IsEqualGUID(&rif->If.InterfaceId.SyntaxGUID, riid))
{
rif->refs++;
found = TRUE;
break;
}
}
if (!found)
{
TRACE("Creating new interface\n");
rif = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*rif));
if (rif)
{
RPC_STATUS status;
rif->refs = 1;
rif->If.Length = sizeof(RPC_SERVER_INTERFACE);
/* RPC interface ID = COM interface ID */
rif->If.InterfaceId.SyntaxGUID = *riid;
rif->If.DispatchTable = &rpc_dispatch;
/* all other fields are 0, including the version asCOM objects
* always have a version of 0.0 */
status = RpcServerRegisterIfEx(
(RPC_IF_HANDLE)&rif->If,
NULL, NULL,
RPC_IF_OLE | RPC_IF_AUTOLISTEN,
RPC_C_LISTEN_MAX_CALLS_DEFAULT,
NULL);
if (status == RPC_S_OK)
list_add_tail(&registered_interfaces, &rif->entry);
else
{
ERR("RpcServerRegisterIfEx failed with error %ld\n", status);
HeapFree(GetProcessHeap(), 0, rif);
hr = HRESULT_FROM_WIN32(status);
}
}
else
hr = E_OUTOFMEMORY;
}
LeaveCriticalSection(&csRegIf);
return hr;
}
/* stub unregistration */
void RPC_UnregisterInterface(REFIID riid)
{
struct registered_if *rif;
EnterCriticalSection(&csRegIf);
LIST_FOR_EACH_ENTRY(rif, &registered_interfaces, struct registered_if, entry)
{
if (IsEqualGUID(&rif->If.InterfaceId.SyntaxGUID, riid))
{
if (!--rif->refs)
{
#if 0 /* this is a stub in builtin and spams the console with FIXME's */
IID iid = *riid; /* RpcServerUnregisterIf doesn't take const IID */
RpcServerUnregisterIf((RPC_IF_HANDLE)&rif->If, &iid, 0);
list_remove(&rif->entry);
HeapFree(GetProcessHeap(), 0, rif);
#endif
}
break;
}
}
LeaveCriticalSection(&csRegIf);
}
/* make the apartment reachable by other threads and processes and create the
* IRemUnknown object */
void RPC_StartRemoting(struct apartment *apt)
{
if (!InterlockedExchange(&apt->remoting_started, TRUE))
{
WCHAR endpoint[200];
RPC_STATUS status;
get_rpc_endpoint(endpoint, &apt->oxid);
status = RpcServerUseProtseqEpW(
wszPipeTransport,
RPC_C_PROTSEQ_MAX_REQS_DEFAULT,
endpoint,
NULL);
if (status != RPC_S_OK)
ERR("Couldn't register endpoint %s\n", debugstr_w(endpoint));
/* FIXME: move remote unknown exporting into this function */
}
start_apartment_remote_unknown();
}
static HRESULT create_server(REFCLSID rclsid)
{
static const WCHAR wszLocalServer32[] = { 'L','o','c','a','l','S','e','r','v','e','r','3','2',0 };
static const WCHAR embedding[] = { ' ', '-','E','m','b','e','d','d','i','n','g',0 };
HKEY key;
HRESULT hres;
WCHAR command[MAX_PATH+sizeof(embedding)/sizeof(WCHAR)];
DWORD size = (MAX_PATH+1) * sizeof(WCHAR);
STARTUPINFOW sinfo;
PROCESS_INFORMATION pinfo;
hres = COM_OpenKeyForCLSID(rclsid, wszLocalServer32, KEY_READ, &key);
if (FAILED(hres)) {
ERR("class %s not registered\n", debugstr_guid(rclsid));
return hres;
}
hres = RegQueryValueExW(key, NULL, NULL, NULL, (LPBYTE)command, &size);
RegCloseKey(key);
if (hres) {
WARN("No default value for LocalServer32 key\n");
return REGDB_E_CLASSNOTREG; /* FIXME: check retval */
}
memset(&sinfo,0,sizeof(sinfo));
sinfo.cb = sizeof(sinfo);
/* EXE servers are started with the -Embedding switch. */
strcatW(command, embedding);
TRACE("activating local server %s for %s\n", debugstr_w(command), debugstr_guid(rclsid));
/* FIXME: Win2003 supports a ServerExecutable value that is passed into
* CreateProcess */
if (!CreateProcessW(NULL, command, NULL, NULL, FALSE, 0, NULL, NULL, &sinfo, &pinfo)) {
WARN("failed to run local server %s\n", debugstr_w(command));
return HRESULT_FROM_WIN32(GetLastError());
}
CloseHandle(pinfo.hProcess);
CloseHandle(pinfo.hThread);
return S_OK;
}
/*
* start_local_service() - start a service given its name and parameters
*/
static DWORD start_local_service(LPCWSTR name, DWORD num, LPCWSTR *params)
{
SC_HANDLE handle, hsvc;
DWORD r = ERROR_FUNCTION_FAILED;
TRACE("Starting service %s %ld params\n", debugstr_w(name), num);
handle = OpenSCManagerW(NULL, NULL, SC_MANAGER_CONNECT);
if (!handle)
return r;
hsvc = OpenServiceW(handle, name, SERVICE_START);
if (hsvc)
{
if(StartServiceW(hsvc, num, params))
r = ERROR_SUCCESS;
else
r = GetLastError();
if (r == ERROR_SERVICE_ALREADY_RUNNING)
r = ERROR_SUCCESS;
CloseServiceHandle(hsvc);
}
else
r = GetLastError();
CloseServiceHandle(handle);
TRACE("StartService returned error %ld (%s)\n", r, (r == ERROR_SUCCESS) ? "ok":"failed");
return r;
}
/*
* create_local_service() - start a COM server in a service
*
* To start a Local Service, we read the AppID value under
* the class's CLSID key, then open the HKCR\\AppId key specified
* there and check for a LocalService value.
*
* Note: Local Services are not supported under Windows 9x
*/
static HRESULT create_local_service(REFCLSID rclsid)
{
HRESULT hres;
WCHAR buf[CHARS_IN_GUID], keyname[50];
static const WCHAR szAppId[] = { 'A','p','p','I','d',0 };
static const WCHAR szAppIdKey[] = { 'A','p','p','I','d','\\',0 };
static const WCHAR szLocalService[] = { 'L','o','c','a','l','S','e','r','v','i','c','e',0 };
static const WCHAR szServiceParams[] = {'S','e','r','v','i','c','e','P','a','r','a','m','s',0};
HKEY hkey;
LONG r;
DWORD type, sz;
TRACE("Attempting to start Local service for %s\n", debugstr_guid(rclsid));
/* read the AppID value under the class's key */
hres = COM_OpenKeyForCLSID(rclsid, szAppId, KEY_READ, &hkey);
if (FAILED(hres))
return hres;
sz = sizeof buf;
r = RegQueryValueExW(hkey, NULL, NULL, &type, (LPBYTE)buf, &sz);
RegCloseKey(hkey);
if (r!=ERROR_SUCCESS || type!=REG_SZ)
return hres;
/* read the LocalService and ServiceParameters values from the AppID key */
strcpyW(keyname, szAppIdKey);
strcatW(keyname, buf);
r = RegOpenKeyExW(HKEY_CLASSES_ROOT, keyname, 0, KEY_READ, &hkey);
if (r!=ERROR_SUCCESS)
return hres;
sz = sizeof buf;
r = RegQueryValueExW(hkey, szLocalService, NULL, &type, (LPBYTE)buf, &sz);
if (r==ERROR_SUCCESS && type==REG_SZ)
{
DWORD num_args = 0;
LPWSTR args[1] = { NULL };
/*
* FIXME: I'm not really sure how to deal with the service parameters.
* I suspect that the string returned from RegQueryValueExW
* should be split into a number of arguments by spaces.
* It would make more sense if ServiceParams contained a
* REG_MULTI_SZ here, but it's a REG_SZ for the services
* that I'm interested in for the moment.
*/
r = RegQueryValueExW(hkey, szServiceParams, NULL, &type, NULL, &sz);
if (r == ERROR_SUCCESS && type == REG_SZ && sz)
{
args[0] = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sz);
num_args++;
RegQueryValueExW(hkey, szServiceParams, NULL, &type, (LPBYTE)args[0], &sz);
}
r = start_local_service(buf, num_args, (LPCWSTR *)args);
if (r==ERROR_SUCCESS)
hres = S_OK;
HeapFree(GetProcessHeap(),0,args[0]);
}
RegCloseKey(hkey);
return hres;
}
static void get_localserver_pipe_name(WCHAR *pipefn, REFCLSID rclsid)
{
static const WCHAR wszPipeRef[] = {'\\','\\','.','\\','p','i','p','e','\\',0};
strcpyW(pipefn, wszPipeRef);
StringFromGUID2(rclsid, pipefn + sizeof(wszPipeRef)/sizeof(wszPipeRef[0]) - 1, CHARS_IN_GUID);
}
/* FIXME: should call to rpcss instead */
HRESULT RPC_GetLocalClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
{
HRESULT hres;
HANDLE hPipe;
WCHAR pipefn[100];
DWORD res, bufferlen;
char marshalbuffer[200];
IStream *pStm;
LARGE_INTEGER seekto;
ULARGE_INTEGER newpos;
int tries = 0;
static const int MAXTRIES = 30; /* 30 seconds */
TRACE("rclsid=%s, iid=%s\n", debugstr_guid(rclsid), debugstr_guid(iid));
get_localserver_pipe_name(pipefn, rclsid);
while (tries++ < MAXTRIES) {
TRACE("waiting for %s\n", debugstr_w(pipefn));
WaitNamedPipeW( pipefn, NMPWAIT_WAIT_FOREVER );
hPipe = CreateFileW(pipefn, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, 0);
if (hPipe == INVALID_HANDLE_VALUE) {
if (tries == 1) {
if ( (hres = create_local_service(rclsid)) &&
(hres = create_server(rclsid)) )
return hres;
Sleep(1000);
} else {
WARN("Connecting to %s, no response yet, retrying: le is %lx\n", debugstr_w(pipefn), GetLastError());
Sleep(1000);
}
continue;
}
bufferlen = 0;
if (!ReadFile(hPipe,marshalbuffer,sizeof(marshalbuffer),&bufferlen,NULL)) {
FIXME("Failed to read marshal id from classfactory of %s.\n",debugstr_guid(rclsid));
Sleep(1000);
continue;
}
TRACE("read marshal id from pipe\n");
CloseHandle(hPipe);
break;
}
if (tries >= MAXTRIES)
return E_NOINTERFACE;
hres = CreateStreamOnHGlobal(0,TRUE,&pStm);
if (hres) return hres;
hres = IStream_Write(pStm,marshalbuffer,bufferlen,&res);
if (hres) goto out;
seekto.u.LowPart = 0;seekto.u.HighPart = 0;
hres = IStream_Seek(pStm,seekto,SEEK_SET,&newpos);
TRACE("unmarshalling classfactory\n");
hres = CoUnmarshalInterface(pStm,&IID_IClassFactory,ppv);
out:
IStream_Release(pStm);
return hres;
}
struct local_server_params
{
CLSID clsid;
IStream *stream;
};
/* FIXME: should call to rpcss instead */
static DWORD WINAPI local_server_thread(LPVOID param)
{
struct local_server_params * lsp = (struct local_server_params *)param;
HANDLE hPipe;
WCHAR pipefn[100];
HRESULT hres;
IStream *pStm = lsp->stream;
STATSTG ststg;
unsigned char *buffer;
int buflen;
LARGE_INTEGER seekto;
ULARGE_INTEGER newpos;
ULONG res;
TRACE("Starting threader for %s.\n",debugstr_guid(&lsp->clsid));
get_localserver_pipe_name(pipefn, &lsp->clsid);
HeapFree(GetProcessHeap(), 0, lsp);
hPipe = CreateNamedPipeW( pipefn, PIPE_ACCESS_DUPLEX,
PIPE_TYPE_BYTE|PIPE_WAIT, PIPE_UNLIMITED_INSTANCES,
4096, 4096, 500 /* 0.5 second timeout */, NULL );
if (hPipe == INVALID_HANDLE_VALUE)
{
FIXME("pipe creation failed for %s, le is %ld\n", debugstr_w(pipefn), GetLastError());
return 1;
}
while (1) {
if (!ConnectNamedPipe(hPipe,NULL)) {
ERR("Failure during ConnectNamedPipe %ld, ABORT!\n",GetLastError());
break;
}
TRACE("marshalling IClassFactory to client\n");
hres = IStream_Stat(pStm,&ststg,0);
if (hres) return hres;
buflen = ststg.cbSize.u.LowPart;
buffer = HeapAlloc(GetProcessHeap(),0,buflen);
seekto.u.LowPart = 0;
seekto.u.HighPart = 0;
hres = IStream_Seek(pStm,seekto,SEEK_SET,&newpos);
if (hres) {
FIXME("IStream_Seek failed, %lx\n",hres);
return hres;
}
hres = IStream_Read(pStm,buffer,buflen,&res);
if (hres) {
FIXME("Stream Read failed, %lx\n",hres);
return hres;
}
WriteFile(hPipe,buffer,buflen,&res,NULL);
FlushFileBuffers(hPipe);
DisconnectNamedPipe(hPipe);
TRACE("done marshalling IClassFactory\n");
}
CloseHandle(hPipe);
IStream_Release(pStm);
return 0;
}
void RPC_StartLocalServer(REFCLSID clsid, IStream *stream)
{
DWORD tid;
HANDLE thread;
struct local_server_params *lsp = HeapAlloc(GetProcessHeap(), 0, sizeof(*lsp));
lsp->clsid = *clsid;
lsp->stream = stream;
thread = CreateThread(NULL, 0, local_server_thread, lsp, 0, &tid);
CloseHandle(thread);
/* FIXME: failure handling */
}
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