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/*
* THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
* ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED
* TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
* PARTICULAR PURPOSE.
*
* Copyright (C) 1993 - 2000. Microsoft Corporation. All rights reserved.
* 2013 Heiko Hund <heiko.hund@sophos.com>
*/
#include "service.h"
#include <windows.h>
#include <stdio.h>
#include <process.h>
openvpn_service_t openvpn_service[_service_max];
BOOL
ReportStatusToSCMgr (SERVICE_STATUS_HANDLE service, SERVICE_STATUS *status)
{
static DWORD dwCheckPoint = 1;
BOOL res = TRUE;
if (status->dwCurrentState == SERVICE_START_PENDING)
status->dwControlsAccepted = 0;
else
status->dwControlsAccepted = SERVICE_ACCEPT_STOP;
if (status->dwCurrentState == SERVICE_RUNNING ||
status->dwCurrentState == SERVICE_STOPPED)
status->dwCheckPoint = 0;
else
status->dwCheckPoint = dwCheckPoint++;
/* Report the status of the service to the service control manager. */
res = SetServiceStatus (service, status);
if (!res)
MsgToEventLog(MSG_FLAGS_ERROR, TEXT("SetServiceStatus"));
return res;
}
static int
CmdInstallServices ()
{
SC_HANDLE service;
SC_HANDLE svc_ctl_mgr;
TCHAR path[512];
int i, ret = _service_max;
if (GetModuleFileName (NULL, path + 1, 510) == 0)
{
_tprintf (TEXT("Unable to install service - %s\n"), GetLastErrorText ());
return 1;
}
path[0] = TEXT('\"');
_tcscat (path, TEXT("\""));
svc_ctl_mgr = OpenSCManager (NULL, NULL, SC_MANAGER_CONNECT | SC_MANAGER_CREATE_SERVICE);
if (svc_ctl_mgr == NULL)
{
_tprintf (TEXT("OpenSCManager failed - %s\n"), GetLastErrorText ());
return 1;
}
for (i = 0; i < _service_max; i++)
{
service = CreateService (svc_ctl_mgr,
openvpn_service[i].name,
openvpn_service[i].display_name,
SERVICE_QUERY_STATUS,
SERVICE_WIN32_SHARE_PROCESS,
openvpn_service[i].start_type,
SERVICE_ERROR_NORMAL,
path, NULL, NULL,
openvpn_service[i].dependencies,
NULL, NULL);
if (service)
{
_tprintf (TEXT("%s installed.\n"), openvpn_service[i].display_name);
CloseServiceHandle (service);
--ret;
}
else
_tprintf (TEXT("CreateService failed - %s\n"), GetLastErrorText ());
}
CloseServiceHandle (svc_ctl_mgr);
return ret;
}
static int
CmdStartService (openvpn_service_type type)
{
int ret = 1;
SC_HANDLE svc_ctl_mgr;
SC_HANDLE service;
svc_ctl_mgr = OpenSCManager (NULL, NULL, SC_MANAGER_ALL_ACCESS);
if (svc_ctl_mgr == NULL)
{
_tprintf (TEXT("OpenSCManager failed - %s\n"), GetLastErrorText ());
return 1;
}
service = OpenService (svc_ctl_mgr, openvpn_service[type].name, SERVICE_ALL_ACCESS);
if (service)
{
if (StartService (service, 0, NULL))
{
_tprintf (TEXT("Service Started\n"));
ret = 0;
}
else
_tprintf (TEXT("StartService failed - %s\n"), GetLastErrorText ());
CloseServiceHandle(service);
}
else
{
_tprintf (TEXT("OpenService failed - %s\n"), GetLastErrorText ());
}
CloseServiceHandle(svc_ctl_mgr);
return ret;
}
static int
CmdRemoveServices ()
{
SC_HANDLE service;
SC_HANDLE svc_ctl_mgr;
SERVICE_STATUS status;
int i, ret = _service_max;
svc_ctl_mgr = OpenSCManager (NULL, NULL, SC_MANAGER_CONNECT);
if (svc_ctl_mgr == NULL)
{
_tprintf(TEXT("OpenSCManager failed - %s\n"), GetLastErrorText ());
return 1;
}
for (i = 0; i < _service_max; i++)
{
openvpn_service_t *ovpn_svc = &openvpn_service[i];
service = OpenService (svc_ctl_mgr, ovpn_svc->name,
DELETE | SERVICE_STOP | SERVICE_QUERY_STATUS);
if (service == NULL)
{
_tprintf (TEXT("OpenService failed - %s\n"), GetLastErrorText ());
goto out;
}
/* try to stop the service */
if (ControlService (service, SERVICE_CONTROL_STOP, &status))
{
_tprintf (TEXT("Stopping %s."), ovpn_svc->display_name);
Sleep (1000);
while (QueryServiceStatus (service, &status))
{
if (status.dwCurrentState == SERVICE_STOP_PENDING)
{
_tprintf (TEXT("."));
Sleep (1000);
}
else
break;
}
if (status.dwCurrentState == SERVICE_STOPPED)
_tprintf (TEXT("\n%s stopped.\n"), ovpn_svc->display_name);
else
_tprintf (TEXT("\n%s failed to stop.\n"), ovpn_svc->display_name);
}
/* now remove the service */
if (DeleteService (service))
{
_tprintf (TEXT("%s removed.\n"), ovpn_svc->display_name);
--ret;
}
else
_tprintf (TEXT("DeleteService failed - %s\n"), GetLastErrorText ());
CloseServiceHandle (service);
}
out:
CloseServiceHandle (svc_ctl_mgr);
return ret;
}
int
_tmain (int argc, TCHAR *argv[])
{
SERVICE_TABLE_ENTRY dispatchTable[] = {
{ automatic_service.name, ServiceStartAutomatic },
{ interactive_service.name, ServiceStartInteractive },
{ NULL, NULL }
};
openvpn_service[0] = automatic_service;
openvpn_service[1] = interactive_service;
if (argc > 1 && (*argv[1] == TEXT('-') || *argv[1] == TEXT('/')))
{
if (_tcsicmp (TEXT("install"), argv[1] + 1) == 0)
return CmdInstallServices ();
else if (_tcsicmp (TEXT("remove"), argv[1] + 1) == 0)
return CmdRemoveServices ();
else if (_tcsicmp (TEXT("start"), argv[1] + 1) == 0)
{
BOOL is_auto = argc < 3 || _tcsicmp (TEXT("interactive"), argv[2]) != 0;
return CmdStartService (is_auto ? automatic : interactive);
}
else
goto dispatch;
return 0;
}
/* If it doesn't match any of the above parameters
* the service control manager may be starting the service
* so we must call StartServiceCtrlDispatcher
*/
dispatch:
_tprintf (TEXT("%s -install to install the services\n"), APPNAME);
_tprintf (TEXT("%s -start <name> to start a service (\"automatic\" or \"interactive\")\n"), APPNAME);
_tprintf (TEXT("%s -remove to remove the services\n"), APPNAME);
_tprintf (TEXT("\nStartServiceCtrlDispatcher being called.\n"));
_tprintf (TEXT("This may take several seconds. Please wait.\n"));
if (!StartServiceCtrlDispatcher (dispatchTable))
MsgToEventLog (MSG_FLAGS_ERROR, TEXT("StartServiceCtrlDispatcher failed."));
return 0;
}
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