Don't let tinc service depend on NDIS component.
[tinc] / src / process.c
index 547c51a..a4e2548 100644 (file)
@@ -1,7 +1,7 @@
 /*
     process.c -- process management functions
-    Copyright (C) 1999-2003 Ivo Timmermans <ivo@o2w.nl>,
-                  2000-2003 Guus Sliepen <guus@sliepen.eu.org>
+    Copyright (C) 1999-2004 Ivo Timmermans <ivo@tinc-vpn.org>,
+                  2000-2004 Guus Sliepen <guus@tinc-vpn.org>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -17,7 +17,7 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id: process.c,v 1.1.2.61 2003/08/02 20:50:38 guus Exp $
+    $Id$
 */
 
 #include "system.h"
@@ -58,19 +58,6 @@ static void memory_full(int size)
 
 /* Some functions the less gifted operating systems might lack... */
 
-#ifndef HAVE_FCLOSEALL
-static int fcloseall(void)
-{
-       fflush(stdin);
-       fflush(stdout);
-       fflush(stderr);
-       fclose(stdin);
-       fclose(stdout);
-       fclose(stderr);
-       return 0;
-}
-#endif
-
 #ifdef HAVE_MINGW
 extern char *identname;
 extern char *program_name;
@@ -82,8 +69,10 @@ static SERVICE_STATUS status = {0};
 static SERVICE_STATUS_HANDLE statushandle = 0;
 
 bool install_service(void) {
-       char command[4096] = "";
+       char command[4096] = "\"";
        char **argp;
+       bool space;
+       SERVICE_DESCRIPTION description = {"Virtual Private Network daemon"};
 
        manager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
        if(!manager) {
@@ -92,25 +81,38 @@ bool install_service(void) {
        }
 
        if(!strchr(program_name, '\\')) {
-               GetCurrentDirectory(sizeof(command), command);
+               GetCurrentDirectory(sizeof(command) - 1, command + 1);
                strncat(command, "\\", sizeof(command));
        }
 
        strncat(command, program_name, sizeof(command));
+
+       strncat(command, "\"", sizeof(command));
+
        for(argp = g_argv + 1; *argp; argp++) {
+               space = strchr(*argp, ' ');
                strncat(command, " ", sizeof(command));
+               
+               if(space)
+                       strncat(command, "\"", sizeof(command));
+               
                strncat(command, *argp, sizeof(command));
+
+               if(space)
+                       strncat(command, "\"", sizeof(command));
        }
 
        service = CreateService(manager, identname, identname,
                        SERVICE_ALL_ACCESS, SERVICE_WIN32_OWN_PROCESS, SERVICE_AUTO_START, SERVICE_ERROR_NORMAL,
-                       command, "NDIS", NULL, NULL, NULL, NULL);
+                       command, NULL, NULL, NULL, NULL, NULL);
        
        if(!service) {
                logger(LOG_ERR, _("Could not create %s service: %s"), identname, winerror(GetLastError()));
                return false;
        }
 
+       ChangeServiceConfig2(service, SERVICE_CONFIG_DESCRIPTION, &description);
+
        logger(LOG_INFO, _("%s service installed"), identname);
 
        if(!StartService(service, 0, NULL))
@@ -154,18 +156,28 @@ DWORD WINAPI controlhandler(DWORD request, DWORD type, LPVOID boe, LPVOID bah) {
        switch(request) {
                case SERVICE_CONTROL_STOP:
                        logger(LOG_NOTICE, _("Got %s request"), "SERVICE_CONTROL_STOP");
-                       running = false;
                        break;
                case SERVICE_CONTROL_SHUTDOWN:
                        logger(LOG_NOTICE, _("Got %s request"), "SERVICE_CONTROL_SHUTDOWN");
-                       running = false;
                        break;
                default:
                        logger(LOG_WARNING, _("Got unexpected request %d"), request);
                        return ERROR_CALL_NOT_IMPLEMENTED;
        }
 
-       return NO_ERROR;
+       if(running) {
+               running = false;
+               status.dwWaitHint = 30000; 
+               status.dwCurrentState = SERVICE_STOP_PENDING; 
+               SetServiceStatus(statushandle, &status);
+               return NO_ERROR;
+       } else {
+               status.dwWaitHint = 0; 
+               status.dwCurrentState = SERVICE_STOPPED; 
+               SetServiceStatus(statushandle, &status);
+               exit(1);
+       }
+
 }
 
 VOID WINAPI run_service(DWORD argc, LPTSTR* argv)
@@ -175,12 +187,10 @@ VOID WINAPI run_service(DWORD argc, LPTSTR* argv)
 
 
        status.dwServiceType = SERVICE_WIN32; 
-       status.dwCurrentState = SERVICE_RUNNING; 
        status.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN;
        status.dwWin32ExitCode = 0; 
        status.dwServiceSpecificExitCode = 0; 
        status.dwCheckPoint = 0; 
-       status.dwWaitHint = 0; 
 
        statushandle = RegisterServiceCtrlHandlerEx(identname, controlhandler, NULL); 
 
@@ -188,13 +198,19 @@ VOID WINAPI run_service(DWORD argc, LPTSTR* argv)
                logger(LOG_ERR, _("System call `%s' failed: %s"), "RegisterServiceCtrlHandlerEx", winerror(GetLastError()));
                err = 1;
        } else {
+               status.dwWaitHint = 30000; 
+               status.dwCurrentState = SERVICE_START_PENDING; 
+               SetServiceStatus(statushandle, &status);
+
+               status.dwWaitHint = 0; 
+               status.dwCurrentState = SERVICE_RUNNING;
                SetServiceStatus(statushandle, &status);
 
                err = main2(argc, argv);
 
+               status.dwWaitHint = 0;
                status.dwCurrentState = SERVICE_STOPPED; 
-               status.dwWin32ExitCode = err; 
-
+               //status.dwWin32ExitCode = err; 
                SetServiceStatus(statushandle, &status);
        }
 
@@ -225,7 +241,7 @@ bool init_service(void) {
 */
 static bool write_pidfile(void)
 {
-       int pid;
+       pid_t pid;
 
        cp();
 
@@ -233,16 +249,18 @@ static bool write_pidfile(void)
 
        if(pid) {
                if(netname)
-                       fprintf(stderr, _("A tincd is already running for net `%s' with pid %d.\n"),
-                                       netname, pid);
+                       fprintf(stderr, _("A tincd is already running for net `%s' with pid %ld.\n"),
+                                       netname, (long)pid);
                else
-                       fprintf(stderr, _("A tincd is already running with pid %d.\n"), pid);
+                       fprintf(stderr, _("A tincd is already running with pid %ld.\n"), (long)pid);
                return false;
        }
 
        /* if it's locked, write-protected, or whatever */
-       if(!write_pid(pidfilename))
+       if(!write_pid(pidfilename)) {
+               fprintf(stderr, _("Could write pid file %s: %s\n"), pidfilename, strerror(errno));
                return false;
+       }
 
        return true;
 }
@@ -254,7 +272,7 @@ static bool write_pidfile(void)
 bool kill_other(int signal)
 {
 #ifndef HAVE_MINGW
-       int pid;
+       pid_t pid;
 
        cp();
 
@@ -319,8 +337,10 @@ bool detach(void)
 
                /* Now UPDATE the pid in the pidfile, because we changed it... */
 
-               if(!write_pid(pidfilename))
+               if(!write_pid(pidfilename)) {
+                       fprintf(stderr, _("Could not write pid file %s: %s\n"), pidfilename, strerror(errno));
                        return false;
+               }
 #else
                if(!statushandle)
                        exit(install_service());
@@ -337,106 +357,80 @@ bool detach(void)
        return true;
 }
 
-#ifdef HAVE_FORK
-/*
-  Execute the program name, with sane environment.
-*/
-static void _execute_script(const char *scriptname, char **envp)
-       __attribute__ ((__noreturn__));
-static void _execute_script(const char *scriptname, char **envp)
+bool execute_script(const char *name, char **envp)
 {
-       int save_errno;
+#ifdef HAVE_SYSTEM
+       int status, len;
+       struct stat s;
+       char *scriptname, *p;
+       int i;
 
        cp();
 
-       while(*envp)
-               putenv(*envp++);
-
-       chdir("/");
+#ifndef HAVE_MINGW
+       len = asprintf(&scriptname, "\"%s/%s\"", confbase, name);
+#else
+       len = asprintf(&scriptname, "\"%s/%s.bat\"", confbase, name);
+#endif
+       if(len < 0)
+               return false;
 
-       closelogger();
+       scriptname[len - 1] = '\0';
 
-       /* Close all file descriptors */
-       fcloseall();
+       /* First check if there is a script */
 
-       execl(scriptname, scriptname, NULL);
-       /* No return on success */
+       if(stat(scriptname + 1, &s))
+               return true;
 
-       save_errno = errno;
+       ifdebug(STATUS) logger(LOG_INFO, _("Executing script %s"), name);
 
-       openlogger(identname, use_logfile?LOGMODE_FILE:(do_detach?LOGMODE_SYSLOG:LOGMODE_STDERR));
-       logger(LOG_ERR, _("Could not execute `%s': %s"), scriptname,
-                  strerror(save_errno));
-       exit(save_errno);
-}
+#ifdef HAVE_PUTENV
+       /* Set environment */
+       
+       for(i = 0; envp[i]; i++)
+               putenv(envp[i]);
 #endif
 
-/*
-  Fork and execute the program pointed to by name.
-*/
-bool execute_script(const char *name, char **envp)
-{
-#ifdef HAVE_FORK
-       pid_t pid;
-       int status;
-       struct stat s;
-       char *scriptname;
-
-       cp();
+       scriptname[len - 1] = '\"';
+       status = system(scriptname);
 
-       asprintf(&scriptname, "%s/%s", confbase, name);
+       free(scriptname);
 
-       /* First check if there is a script */
-
-       if(stat(scriptname, &s))
-               return true;
+       /* Unset environment */
 
-       pid = fork();
-
-       if(pid < 0) {
-               logger(LOG_ERR, _("System call `%s' failed: %s"), "fork",
-                          strerror(errno));
-               return false;
+       for(i = 0; envp[i]; i++) {
+               char *e = strchr(envp[i], '=');
+               if(e) {
+                       p = alloca(e - envp[i] + 1);
+                       strncpy(p, envp[i], e - envp[i]);
+                       p[e - envp[i]] = '\0';
+                       putenv(p);
+               }
        }
 
-       if(pid) {
-               ifdebug(STATUS) logger(LOG_INFO, _("Executing script %s"), name);
-
-               free(scriptname);
-
-               if(waitpid(pid, &status, 0) == pid) {
-                       if(WIFEXITED(status)) { /* Child exited by itself */
-                               if(WEXITSTATUS(status)) {
-                                       logger(LOG_ERR, _("Process %d (%s) exited with non-zero status %d"),
-                                                  pid, name, WEXITSTATUS(status));
-                                       return false;
-                               } else
-                                       return true;
-                       } else if(WIFSIGNALED(status)) {        /* Child was killed by a signal */
-                               logger(LOG_ERR, _("Process %d (%s) was killed by signal %d (%s)"), pid,
-                                          name, WTERMSIG(status), strsignal(WTERMSIG(status)));
-                               return false;
-                       } else {                        /* Something strange happened */
-                               logger(LOG_ERR, _("Process %d (%s) terminated abnormally"), pid,
-                                          name);
+#ifdef WEXITSTATUS
+       if(status != -1) {
+               if(WIFEXITED(status)) { /* Child exited by itself */
+                       if(WEXITSTATUS(status)) {
+                               logger(LOG_ERR, _("Script %s exited with non-zero status %d"),
+                                          name, WEXITSTATUS(status));
                                return false;
                        }
-               } else if (errno != EINTR) {
-                       logger(LOG_ERR, _("System call `%s' failed: %s"), "waitpid",
-                                  strerror(errno));
+               } else if(WIFSIGNALED(status)) {        /* Child was killed by a signal */
+                       logger(LOG_ERR, _("Script %s was killed by signal %d (%s)"),
+                                  name, WTERMSIG(status), strsignal(WTERMSIG(status)));
+                       return false;
+               } else {                        /* Something strange happened */
+                       logger(LOG_ERR, _("Script %s terminated abnormally"), name);
                        return false;
                }
-
-               /* Why do we get EINTR? */
-               return true;
+       } else {
+               logger(LOG_ERR, _("System call `%s' failed: %s"), "system", strerror(errno));
+               return false;
        }
-
-       /* Child here */
-
-       _execute_script(scriptname, envp);
-#else
-       return true;
 #endif
+#endif
+       return true;
 }
 
 
@@ -447,14 +441,20 @@ bool execute_script(const char *name, char **envp)
 #ifndef HAVE_MINGW
 static RETSIGTYPE sigterm_handler(int a)
 {
-       logger(LOG_NOTICE, _("Got TERM signal"));
-       running = false;
+       logger(LOG_NOTICE, _("Got %s signal"), "TERM");
+       if(running)
+               running = false;
+       else
+               exit(1);
 }
 
 static RETSIGTYPE sigquit_handler(int a)
 {
-       logger(LOG_NOTICE, _("Got QUIT signal"));
-       running = false;
+       logger(LOG_NOTICE, _("Got %s signal"), "QUIT");
+       if(running)
+               running = false;
+       else
+               exit(1);
 }
 
 static RETSIGTYPE fatal_signal_square(int a)
@@ -491,12 +491,14 @@ static RETSIGTYPE fatal_signal_handler(int a)
 
 static RETSIGTYPE sighup_handler(int a)
 {
-       logger(LOG_NOTICE, _("Got HUP signal"));
+       logger(LOG_NOTICE, _("Got %s signal"), "HUP");
        sighup = true;
 }
 
 static RETSIGTYPE sigint_handler(int a)
 {
+       logger(LOG_NOTICE, _("Got %s signal"), "INT");
+
        if(saved_debug_level != -1) {
                logger(LOG_NOTICE, _("Reverting to old debug level (%d)"),
                        saved_debug_level);
@@ -513,7 +515,7 @@ static RETSIGTYPE sigint_handler(int a)
 
 static RETSIGTYPE sigalrm_handler(int a)
 {
-       logger(LOG_NOTICE, _("Got ALRM signal"));
+       logger(LOG_NOTICE, _("Got %s signal"), "ALRM");
        sigalrm = true;
 }