Sweden-Number/dlls/schedsvc/svc_main.c

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2014-03-07 04:10:28 +01:00
/*
* Task Scheduler Service
*
* Copyright 2014 Dmitry Timoshkov
*
* 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 <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "winsvc.h"
#include "rpc.h"
#include "schrpc.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(schedsvc);
static const WCHAR scheduleW[] = {'S','c','h','e','d','u','l','e',0};
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static SERVICE_STATUS_HANDLE schedsvc_handle;
static HANDLE done_event;
void schedsvc_auto_start(void)
{
static DWORD start_type;
SC_HANDLE scm, service;
QUERY_SERVICE_CONFIGW *cfg;
DWORD cfg_size;
if (start_type == SERVICE_AUTO_START) return;
TRACE("changing service start type to SERVICE_AUTO_START\n");
scm = OpenSCManagerW(NULL, NULL, 0);
if (!scm)
{
WARN("failed to open SCM (%u)\n", GetLastError());
return;
}
service = OpenServiceW(scm, scheduleW, SERVICE_QUERY_CONFIG | SERVICE_CHANGE_CONFIG);
if (service)
{
if (!QueryServiceConfigW(service, NULL, 0, &cfg_size) && GetLastError() == ERROR_INSUFFICIENT_BUFFER)
{
cfg = HeapAlloc(GetProcessHeap(), 0, cfg_size);
if (cfg)
{
if (QueryServiceConfigW(service, cfg, cfg_size, &cfg_size))
{
start_type = cfg->dwStartType;
if (start_type != SERVICE_AUTO_START)
{
if (ChangeServiceConfigW(service, SERVICE_NO_CHANGE, SERVICE_AUTO_START, SERVICE_NO_CHANGE,
NULL, NULL, NULL, NULL, NULL, NULL, NULL))
start_type = SERVICE_AUTO_START;
}
}
HeapFree(GetProcessHeap(), 0, cfg);
}
}
else
WARN("failed to query service config (%u)\n", GetLastError());
CloseServiceHandle(service);
}
else
WARN("failed to open service (%u)\n", GetLastError());
CloseServiceHandle(scm);
}
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static void schedsvc_update_status(DWORD state)
{
SERVICE_STATUS status;
status.dwServiceType = SERVICE_WIN32;
status.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN;
status.dwWin32ExitCode = 0;
status.dwServiceSpecificExitCode = 0;
status.dwCheckPoint = 0;
status.dwWaitHint = 0;
status.dwControlsAccepted = 0;
status.dwCurrentState = state;
SetServiceStatus(schedsvc_handle, &status);
}
static void WINAPI schedsvc_handler(DWORD control)
{
TRACE("%#x\n", control);
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switch (control)
{
case SERVICE_CONTROL_STOP:
case SERVICE_CONTROL_SHUTDOWN:
schedsvc_update_status(SERVICE_STOP_PENDING);
SetEvent(done_event);
break;
default:
schedsvc_update_status(SERVICE_RUNNING);
break;
}
}
static RPC_BINDING_VECTOR *sched_bindings;
static RPC_STATUS RPC_init(void)
{
WCHAR transport[] = SCHEDSVC_TRANSPORT;
RPC_STATUS status;
TRACE("using %s\n", debugstr_w(transport));
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status = RpcServerUseProtseqEpW(transport, 0, NULL, NULL);
if (status != RPC_S_OK)
{
WINE_ERR("RpcServerUseProtseqEp error %#x\n", status);
return status;
}
status = RpcServerRegisterIf(ITaskSchedulerService_v1_0_s_ifspec, 0, 0);
if (status != RPC_S_OK)
{
WINE_ERR("RpcServerRegisterIf error %#x\n", status);
return status;
}
status = RpcServerInqBindings(&sched_bindings);
if (status != RPC_S_OK)
{
WINE_ERR("RpcServerInqBindings error %#x\n", status);
return status;
}
status = RpcEpRegisterW(ITaskSchedulerService_v1_0_s_ifspec, sched_bindings, NULL, NULL);
if (status != RPC_S_OK)
{
WINE_ERR("RpcEpRegister error %#x\n", status);
return status;
}
status = RpcServerListen(1, RPC_C_LISTEN_MAX_CALLS_DEFAULT, TRUE);
if (status != RPC_S_OK)
{
WINE_ERR("RpcServerListen error %#x\n", status);
return status;
}
return RPC_S_OK;
}
static void RPC_finish(void)
{
RpcMgmtStopServerListening(NULL);
RpcEpUnregister(ITaskSchedulerService_v1_0_s_ifspec, sched_bindings, NULL);
RpcBindingVectorFree(&sched_bindings);
RpcServerUnregisterIf(NULL, NULL, FALSE);
}
void WINAPI ServiceMain(DWORD argc, LPWSTR *argv)
{
TRACE("starting Task Scheduler Service\n");
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if (RPC_init() != RPC_S_OK) return;
schedsvc_handle = RegisterServiceCtrlHandlerW(scheduleW, schedsvc_handler);
if (!schedsvc_handle)
{
WINE_ERR("RegisterServiceCtrlHandler error %d\n", GetLastError());
return;
}
done_event = CreateEventW(NULL, TRUE, FALSE, NULL);
schedsvc_update_status(SERVICE_RUNNING);
WaitForSingleObject(done_event, INFINITE);
RPC_finish();
schedsvc_update_status(SERVICE_STOPPED);
TRACE("exiting Task Scheduler Service\n");
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}
void __RPC_FAR * __RPC_USER MIDL_user_allocate(SIZE_T len)
{
return HeapAlloc(GetProcessHeap(), 0, len);
}
void __RPC_USER MIDL_user_free(void __RPC_FAR * ptr)
{
HeapFree(GetProcessHeap(), 0, ptr);
}