@@ -44,7 +44,7 @@

 #define false 0

 static SERVICE_STATUS_HANDLE service;

-static SERVICE_STATUS status;

+static SERVICE_STATUS status = { .dwServiceType = SERVICE_WIN32_SHARE_PROCESS };

 openvpn_service_t automatic_service = {

     automatic,

@@ -60,12 +60,6 @@ struct security_attributes

     SECURITY_DESCRIPTOR sd;

 };

-/*

- * Which registry key in HKLM should

- * we get config info from?

- */

-#define REG_KEY "SOFTWARE\\" PACKAGE_NAME

-

 static HANDLE exit_event = NULL;

 /* clear an object */

@@ -91,15 +85,6 @@ init_security_attributes_allow_all(struct security_attributes *obj)

     return true;

 }

-/*

- * This event is initially created in the non-signaled

- * state.  It will transition to the signaled state when

- * we have received a terminate signal from the Service

- * Control Manager which will cause an asynchronous call

- * of ServiceStop below.

- */

-#define EXIT_EVENT_NAME  TEXT(PACKAGE "_exit_1")

-

 HANDLE

 create_event(LPCTSTR name, bool allow_all, bool initial_state, bool manual_reset)

 {

@@ -207,10 +192,19 @@ ServiceCtrlAutomatic(DWORD ctrl_code, DWORD event, LPVOID data, LPVOID ctx)

 VOID WINAPI

+ServiceStartAutomaticOwn(DWORD dwArgc, LPTSTR *lpszArgv)

+{

+    status.dwServiceType = SERVICE_WIN32_OWN_PROCESS;

+    ServiceStartAutomatic(dwArgc, lpszArgv);

+}

+

+

+VOID WINAPI

 ServiceStartAutomatic(DWORD dwArgc, LPTSTR *lpszArgv)

 {

     DWORD error = NO_ERROR;

     settings_t settings;

+    TCHAR event_name[256];

     service = RegisterServiceCtrlHandlerEx(automatic_service.name, ServiceCtrlAutomatic, &status);

     if (!service)

@@ -218,7 +212,6 @@ ServiceStartAutomatic(DWORD dwArgc, LPTSTR *lpszArgv)

         return;

     }

-    status.dwServiceType = SERVICE_WIN32_SHARE_PROCESS;

     status.dwCurrentState = SERVICE_START_PENDING;

     status.dwServiceSpecificExitCode = NO_ERROR;

     status.dwWin32ExitCode = NO_ERROR;

@@ -232,8 +225,15 @@ ServiceStartAutomatic(DWORD dwArgc, LPTSTR *lpszArgv)

     /*

      * Create our exit event

+     * This event is initially created in the non-signaled

+     * state.  It will transition to the signaled state when

+     * we have received a terminate signal from the Service

+     * Control Manager which will cause an asynchronous call

+     * of ServiceStop below.

      */

-    exit_event = create_event(EXIT_EVENT_NAME, false, false, true);

+

+    openvpn_sntprintf(event_name, _countof(event_name), TEXT(PACKAGE "%s_exit_1"), service_instance);

+    exit_event = create_event(event_name, false, false, true);

     if (!exit_event)

     {

         MsgToEventLog(M_ERR, TEXT("CreateEvent failed"));

@@ -322,8 +322,8 @@ ServiceStartAutomatic(DWORD dwArgc, LPTSTR *lpszArgv)

                                   TEXT("%s\\%s"), settings.log_dir, log_file);

                 /* construct command line */

-                openvpn_sntprintf(command_line, _countof(command_line), TEXT(PACKAGE " --service %s 1 --config \"%s\""),

-                                  EXIT_EVENT_NAME,

+                openvpn_sntprintf(command_line, _countof(command_line), TEXT("openvpn --service \"" PACKAGE "%s_exit_1\" 1 --config \"%s\""),

+                                  service_instance,

                                   find_obj.cFileName);

                 /* Make security attributes struct for logfile handle so it can

@@ -24,6 +24,9 @@

 #include "service.h"

 #include "validate.h"

+LPCTSTR service_instance = TEXT("");

+

+

 /*

  * These are necessary due to certain buggy implementations of (v)snprintf,

  * that don't guarantee null termination for size > 0.

@@ -53,8 +56,6 @@ openvpn_sntprintf(LPTSTR str, size_t size, LPCTSTR format, ...)

     return len;

 }

-#define REG_KEY  TEXT("SOFTWARE\\" PACKAGE_NAME)

-

 static DWORD

 GetRegString(HKEY key, LPCTSTR value, LPTSTR data, DWORD size)

 {

@@ -69,7 +70,7 @@ GetRegString(HKEY key, LPCTSTR value, LPTSTR data, DWORD size)

     if (status != ERROR_SUCCESS)

     {

         SetLastError(status);

-        return MsgToEventLog(M_SYSERR, TEXT("Error querying registry value: HKLM\\%s\\%s"), REG_KEY, value);

+        return MsgToEventLog(M_SYSERR, TEXT("Error querying registry value: HKLM\\SOFTWARE\\" PACKAGE_NAME "%s\\%s"), service_instance, value);

     }

     return ERROR_SUCCESS;

@@ -79,16 +80,19 @@ GetRegString(HKEY key, LPCTSTR value, LPTSTR data, DWORD size)

 DWORD

 GetOpenvpnSettings(settings_t *s)

 {

+    TCHAR reg_path[256];

     TCHAR priority[64];

     TCHAR append[2];

     DWORD error;

     HKEY key;

-    LONG status = RegOpenKeyEx(HKEY_LOCAL_MACHINE, REG_KEY, 0, KEY_READ, &key);

+    openvpn_sntprintf(reg_path, _countof(reg_path), TEXT("SOFTWARE\\" PACKAGE_NAME "%s"), service_instance);

+

+    LONG status = RegOpenKeyEx(HKEY_LOCAL_MACHINE, reg_path, 0, KEY_READ, &key);

     if (status != ERROR_SUCCESS)

     {

         SetLastError(status);

-        return MsgToEventLog(M_SYSERR, TEXT("Could not open Registry key HKLM\\%s not found"), REG_KEY);

+        return MsgToEventLog(M_SYSERR, TEXT("Could not open Registry key HKLM\\%s not found"), reg_path);

     }

     error = GetRegString(key, TEXT("exe_path"), s->exe_path, sizeof(s->exe_path));

@@ -232,7 +236,7 @@ MsgToEventLog(DWORD flags, LPCTSTR format, ...)

     if (hEventSource != NULL)

     {

         openvpn_sntprintf(msg[0], _countof(msg[0]),

-                          TEXT("%s%s: %s"), APPNAME,

+                          TEXT("%s%s%s: %s"), APPNAME, service_instance,

                           (flags & MSG_FLAGS_ERROR) ? TEXT(" error") : TEXT(""), err_msg);

         va_start(arglist, format);

@@ -53,7 +53,7 @@

 #define ERROR_MESSAGE_TYPE     0x20000003

 static SERVICE_STATUS_HANDLE service;

-static SERVICE_STATUS status;

+static SERVICE_STATUS status = { .dwServiceType = SERVICE_WIN32_SHARE_PROCESS };

 static HANDLE exit_event = NULL;

 static settings_t settings;

 static HANDLE rdns_semaphore = NULL;

@@ -1325,7 +1325,7 @@ RunOpenvpn(LPVOID p)

     STARTUPINFOW startup_info;

     PROCESS_INFORMATION proc_info;

     LPVOID user_env = NULL;

-    TCHAR ovpn_pipe_name[36];

+    TCHAR ovpn_pipe_name[256]; /* The entire pipe name string can be up to 256 characters long according to MSDN. */

     LPCWSTR exe_path;

     WCHAR *cmdline = NULL;

     size_t cmdline_size;

@@ -1487,7 +1487,7 @@ RunOpenvpn(LPVOID p)

     }

     openvpn_sntprintf(ovpn_pipe_name, _countof(ovpn_pipe_name),

-                      TEXT("\\\\.\\pipe\\openvpn\\service_%lu"), GetCurrentThreadId());

+                      TEXT("\\\\.\\pipe\\" PACKAGE "%s\\service_%lu"), service_instance, GetCurrentThreadId());

     ovpn_pipe = CreateNamedPipe(ovpn_pipe_name,

                                 PIPE_ACCESS_DUPLEX | FILE_FLAG_FIRST_PIPE_INSTANCE | FILE_FLAG_OVERLAPPED,

                                 PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_WAIT, 1, 128, 128, 0, NULL);

@@ -1654,6 +1654,7 @@ ServiceCtrlInteractive(DWORD ctrl_code, DWORD event, LPVOID data, LPVOID ctx)

 static HANDLE

 CreateClientPipeInstance(VOID)

 {

+    TCHAR pipe_name[256]; /* The entire pipe name string can be up to 256 characters long according to MSDN. */

     HANDLE pipe = NULL;

     PACL old_dacl, new_dacl;

     PSECURITY_DESCRIPTOR sd;

@@ -1690,7 +1691,8 @@ CreateClientPipeInstance(VOID)

         initialized = TRUE;

     }

-    pipe = CreateNamedPipe(TEXT("\\\\.\\pipe\\openvpn\\service"), flags,

+    openvpn_sntprintf(pipe_name, _countof(pipe_name), TEXT("\\\\.\\pipe\\" PACKAGE "%s\\service"), service_instance);

+    pipe = CreateNamedPipe(pipe_name, flags,

                            PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE,

                            PIPE_UNLIMITED_INSTANCES, 1024, 1024, 0, NULL);

     if (pipe == INVALID_HANDLE_VALUE)

@@ -1785,6 +1787,15 @@ CmpHandle(LPVOID item, LPVOID hnd)

     return item == hnd;

 }

+

+VOID WINAPI

+ServiceStartInteractiveOwn(DWORD dwArgc, LPTSTR *lpszArgv)

+{

+    status.dwServiceType = SERVICE_WIN32_OWN_PROCESS;

+    ServiceStartInteractive(dwArgc, lpszArgv);

+}

+

+

 VOID WINAPI

 ServiceStartInteractive(DWORD dwArgc, LPTSTR *lpszArgv)

 {

@@ -1801,7 +1812,6 @@ ServiceStartInteractive(DWORD dwArgc, LPTSTR *lpszArgv)

         return;

     }

-    status.dwServiceType = SERVICE_WIN32_SHARE_PROCESS;

     status.dwCurrentState = SERVICE_START_PENDING;

     status.dwServiceSpecificExitCode = NO_ERROR;

     status.dwWin32ExitCode = NO_ERROR;

@@ -223,46 +223,81 @@ out:

 int

 _tmain(int argc, TCHAR *argv[])

 {

-    SERVICE_TABLE_ENTRY dispatchTable[] = {

+    /*

+     * Automatic + Interactive service (as a SERVICE_WIN32_SHARE_PROCESS)

+     * This is the default.

+     */

+    const SERVICE_TABLE_ENTRY dispatchTable_shared[] = {

         { automatic_service.name, ServiceStartAutomatic },

         { interactive_service.name, ServiceStartInteractive },

         { NULL, NULL }

     };

+    /* Automatic service only (as a SERVICE_WIN32_OWN_PROCESS) */

+    const SERVICE_TABLE_ENTRY dispatchTable_automatic[] = {

+        { TEXT(""), ServiceStartAutomaticOwn },

+        { NULL, NULL }

+    };

+

+    /* Interactive service only (as a SERVICE_WIN32_OWN_PROCESS) */

+    const SERVICE_TABLE_ENTRY dispatchTable_interactive[] = {

+        { TEXT(""), ServiceStartInteractiveOwn },

+        { NULL, NULL }

+    };

+

+    const SERVICE_TABLE_ENTRY *dispatchTable = dispatchTable_shared;

+

     openvpn_service[0] = automatic_service;

     openvpn_service[1] = interactive_service;

-    if (argc > 1 && (*argv[1] == TEXT('-') || *argv[1] == TEXT('/')))

+    for (int i = 1; i < argc; i++)

     {

-        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

+        if (*argv[i] == TEXT('-') || *argv[i] == TEXT('/'))

         {

-            goto dispatch;

-        }

+            if (_tcsicmp(TEXT("install"), argv[i] + 1) == 0)

+            {

+                return CmdInstallServices();

+            }

+            else if (_tcsicmp(TEXT("remove"), argv[i] + 1) == 0)

+            {

+                return CmdRemoveServices();

+            }

+            else if (_tcsicmp(TEXT("start"), argv[i] + 1) == 0)

+            {

+                BOOL is_auto = argc < i + 2 || _tcsicmp(TEXT("interactive"), argv[i + 1]) != 0;

+                return CmdStartService(is_auto ? automatic : interactive);

+            }

+            else if (argc > i + 2 && _tcsicmp(TEXT("instance"), argv[i] + 1) == 0)

+            {

+                dispatchTable = _tcsicmp(TEXT("interactive"), argv[i + 1]) != 0 ?

+                    dispatchTable_automatic :

+                    dispatchTable_interactive;

-        return 0;

+                service_instance = argv[i + 2];

+                i += 2;

+            }

+            else

+            {

+                _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("\nService run-time parameters:\n"));

+                _tprintf(TEXT("-instance <name> <id>\n")

+                         TEXT("   Runs the service as an alternate instance. <name> can be \"automatic\" or\n")

+                         TEXT("   \"interactive\". The service settings will be loaded from\n")

+                         TEXT("   HKLM\\Software\\" PACKAGE_NAME "<id> registry key, and the interactive service will accept\n")

+                         TEXT("   requests on \\\\.\\pipe\\" PACKAGE "<id>\\service named pipe.\n"));

+

+                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"));

@@ -73,10 +73,12 @@ typedef struct {

 extern openvpn_service_t automatic_service;

 extern openvpn_service_t interactive_service;

+extern LPCTSTR service_instance;

-

+VOID WINAPI ServiceStartAutomaticOwn(DWORD argc, LPTSTR *argv);

 VOID WINAPI ServiceStartAutomatic(DWORD argc, LPTSTR *argv);

+VOID WINAPI ServiceStartInteractiveOwn(DWORD argc, LPTSTR *argv);

 VOID WINAPI ServiceStartInteractive(DWORD argc, LPTSTR *argv);

 int openvpn_vsntprintf(LPTSTR str, size_t size, LPCTSTR format, va_list arglist);