+++ /dev/null
-/*
- process.c -- process management functions
- Copyright (C) 1999-2005 Ivo Timmermans,
- 2000-2013 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
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program 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 General Public License for more details.
-
- You should have received a copy of the GNU General Public License along
- with this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#include "system.h"
-
-#include "conf.h"
-#include "connection.h"
-#include "edge.h"
-#include "event.h"
-#include "logger.h"
-#include "names.h"
-#include "net.h"
-#include "node.h"
-#include "process.h"
-#include "utils.h"
-#include "xalloc.h"
-
-/* If zero, don't detach from the terminal. */
-bool do_detach = true;
-bool sigalrm = false;
-
-extern char **g_argv;
-extern bool use_logfile;
-
-/* Some functions the less gifted operating systems might lack... */
-
-#ifdef HAVE_MINGW
-static SC_HANDLE manager = NULL;
-static SC_HANDLE service = NULL;
-static SERVICE_STATUS status = {0};
-static SERVICE_STATUS_HANDLE statushandle = 0;
-
-static bool install_service(void) {
- char command[4096] = "\"";
- SERVICE_DESCRIPTION description = {"Virtual Private Network daemon"};
-
- manager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
- if(!manager) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Could not open service manager: %s", winerror(GetLastError()));
- return false;
- }
-
- if(!strchr(program_name, '\\')) {
- GetCurrentDirectory(sizeof command - 1, command + 1);
- strncat(command, "\\", sizeof command - strlen(command));
- }
-
- strncat(command, program_name, sizeof command - strlen(command));
-
- strncat(command, "\"", sizeof command - strlen(command));
-
- for(char **argp = g_argv + 1; *argp; argp++) {
- char *space = strchr(*argp, ' ');
- strncat(command, " ", sizeof command - strlen(command));
-
- if(space)
- strncat(command, "\"", sizeof command - strlen(command));
-
- strncat(command, *argp, sizeof command - strlen(command));
-
- if(space)
- strncat(command, "\"", sizeof command - strlen(command));
- }
-
- service = CreateService(manager, identname, identname,
- SERVICE_ALL_ACCESS, SERVICE_WIN32_OWN_PROCESS, SERVICE_AUTO_START, SERVICE_ERROR_NORMAL,
- command, NULL, NULL, NULL, NULL, NULL);
-
- if(!service) {
- DWORD lasterror = GetLastError();
- logger(DEBUG_ALWAYS, LOG_ERR, "Could not create %s service: %s", identname, winerror(lasterror));
- if(lasterror != ERROR_SERVICE_EXISTS)
- return false;
- }
-
- if(service) {
- ChangeServiceConfig2(service, SERVICE_CONFIG_DESCRIPTION, &description);
- logger(DEBUG_ALWAYS, LOG_INFO, "%s service installed", identname);
- } else {
- service = OpenService(manager, identname, SERVICE_ALL_ACCESS);
- }
-
- if(!StartService(service, 0, NULL))
- logger(DEBUG_ALWAYS, LOG_WARNING, "Could not start %s service: %s", identname, winerror(GetLastError()));
- else
- logger(DEBUG_ALWAYS, LOG_INFO, "%s service started", identname);
-
- return true;
-}
-
-DWORD WINAPI controlhandler(DWORD request, DWORD type, LPVOID boe, LPVOID bah) {
- switch(request) {
- case SERVICE_CONTROL_INTERROGATE:
- SetServiceStatus(statushandle, &status);
- return NO_ERROR;
- case SERVICE_CONTROL_STOP:
- logger(DEBUG_ALWAYS, LOG_NOTICE, "Got %s request", "SERVICE_CONTROL_STOP");
- break;
- case SERVICE_CONTROL_SHUTDOWN:
- logger(DEBUG_ALWAYS, LOG_NOTICE, "Got %s request", "SERVICE_CONTROL_SHUTDOWN");
- break;
- default:
- logger(DEBUG_ALWAYS, LOG_WARNING, "Got unexpected request %d", (int)request);
- return ERROR_CALL_NOT_IMPLEMENTED;
- }
-
- event_exit();
- status.dwWaitHint = 30000;
- status.dwCurrentState = SERVICE_STOP_PENDING;
- SetServiceStatus(statushandle, &status);
- return NO_ERROR;
-}
-
-VOID WINAPI run_service(DWORD argc, LPTSTR* argv) {
- extern int main2(int argc, char **argv);
-
- status.dwServiceType = SERVICE_WIN32;
- status.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN;
- status.dwWin32ExitCode = 0;
- status.dwServiceSpecificExitCode = 0;
- status.dwCheckPoint = 0;
-
- statushandle = RegisterServiceCtrlHandlerEx(identname, controlhandler, NULL);
-
- if (!statushandle) {
- logger(DEBUG_ALWAYS, LOG_ERR, "System call `%s' failed: %s", "RegisterServiceCtrlHandlerEx", winerror(GetLastError()));
- } else {
- status.dwWaitHint = 30000;
- status.dwCurrentState = SERVICE_START_PENDING;
- SetServiceStatus(statushandle, &status);
-
- status.dwWaitHint = 0;
- status.dwCurrentState = SERVICE_RUNNING;
- SetServiceStatus(statushandle, &status);
-
- main2(argc, argv);
-
- status.dwWaitHint = 0;
- status.dwCurrentState = SERVICE_STOPPED;
- SetServiceStatus(statushandle, &status);
- }
-
- return;
-}
-
-bool init_service(void) {
- SERVICE_TABLE_ENTRY services[] = {
- {identname, run_service},
- {NULL, NULL}
- };
-
- if(!StartServiceCtrlDispatcher(services)) {
- if(GetLastError() == ERROR_FAILED_SERVICE_CONTROLLER_CONNECT) {
- return false;
- }
- else
- logger(DEBUG_ALWAYS, LOG_ERR, "System call `%s' failed: %s", "StartServiceCtrlDispatcher", winerror(GetLastError()));
- }
-
- return true;
-}
-#endif
-
-/*
- Detach from current terminal
-*/
-bool detach(void) {
-#ifndef HAVE_MINGW
- signal(SIGPIPE, SIG_IGN);
- signal(SIGUSR1, SIG_IGN);
- signal(SIGUSR2, SIG_IGN);
- signal(SIGWINCH, SIG_IGN);
-
- closelogger();
-#endif
-
- if(do_detach) {
-#ifndef HAVE_MINGW
- if(daemon(0, 0)) {
- logger(DEBUG_ALWAYS, LOG_ERR, "Couldn't detach from terminal: %s", strerror(errno));
- return false;
- }
-#else
- if(!statushandle)
- exit(!install_service());
-#endif
- }
-
- openlogger(identname, use_logfile?LOGMODE_FILE:(do_detach?LOGMODE_SYSLOG:LOGMODE_STDERR));
-
- logger(DEBUG_ALWAYS, LOG_NOTICE, "tincd %s (%s %s) starting, debug level %d",
- VERSION, __DATE__, __TIME__, debug_level);
-
- return true;
-}
-
-
projects / meshlink / blobdiff