along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: process.c,v 1.1.2.54 2003/07/12 17:41:46 guus Exp $
+ $Id: process.c,v 1.1.2.65 2003/08/08 14:48:33 guus Exp $
*/
-#include "config.h"
-
-#include <errno.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/ioctl.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/wait.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <termios.h>
-
-#include <pidfile.h>
-#include <utils.h>
-#include <xalloc.h>
+#include "system.h"
#include "conf.h"
-#include "process.h"
-#include "subnet.h"
-#include "device.h"
#include "connection.h"
#include "device.h"
+#include "edge.h"
#include "logger.h"
-
-#include "system.h"
+#include "node.h"
+#include "pidfile.h"
+#include "process.h"
+#include "subnet.h"
+#include "utils.h"
+#include "xalloc.h"
/* If zero, don't detach from the terminal. */
-int do_detach = 1;
+bool do_detach = true;
+bool sighup = false;
+bool sigalrm = false;
extern char *identname;
extern char *pidfilename;
extern char **g_argv;
-extern int use_logfile;
+extern bool use_logfile;
+extern volatile bool running;
sigset_t emptysigset;
static int saved_debug_level = -1;
-extern int sighup;
-extern int sigalrm;
-extern int do_purge;
-
static void memory_full(int size)
{
logger(LOG_ERR, _("Memory exhausted (couldn't allocate %d bytes), exitting."), size);
}
#endif
-/*
- Close network connections, and terminate neatly
-*/
-void cleanup_and_exit(int c)
+#ifdef HAVE_MINGW
+extern char *identname;
+extern char *program_name;
+extern char **g_argv;
+
+static SC_HANDLE manager = NULL;
+static SC_HANDLE service = NULL;
+static SERVICE_STATUS status = {0};
+static SERVICE_STATUS_HANDLE statushandle = 0;
+
+bool install_service(void) {
+ char command[4096] = "";
+ char **argp;
+
+ manager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
+ if(!manager) {
+ logger(LOG_ERR, _("Could not open service manager: %s"), winerror(GetLastError()));
+ return false;
+ }
+
+ if(!strchr(program_name, '\\')) {
+ GetCurrentDirectory(sizeof(command), command);
+ strncat(command, "\\", sizeof(command));
+ }
+
+ strncat(command, program_name, sizeof(command));
+ for(argp = g_argv + 1; *argp; argp++) {
+ strncat(command, " ", sizeof(command));
+ strncat(command, *argp, 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);
+
+ if(!service) {
+ logger(LOG_ERR, _("Could not create %s service: %s"), identname, winerror(GetLastError()));
+ return false;
+ }
+
+ logger(LOG_INFO, _("%s service installed"), identname);
+
+ if(!StartService(service, 0, NULL))
+ logger(LOG_WARNING, _("Could not start %s service: %s"), identname, winerror(GetLastError()));
+ else
+ logger(LOG_INFO, _("%s service started"), identname);
+
+ return true;
+}
+
+bool remove_service(void) {
+ manager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
+ if(!manager) {
+ logger(LOG_ERR, _("Could not open service manager: %s"), winerror(GetLastError()));
+ return false;
+ }
+
+ service = OpenService(manager, identname, SERVICE_ALL_ACCESS);
+
+ if(!service) {
+ logger(LOG_ERR, _("Could not open %s service: %s"), identname, winerror(GetLastError()));
+ return false;
+ }
+
+ if(!ControlService(service, SERVICE_CONTROL_STOP, &status))
+ logger(LOG_ERR, _("Could not stop %s service: %s"), identname, winerror(GetLastError()));
+ else
+ logger(LOG_INFO, _("%s service stopped"), identname);
+
+ if(!DeleteService(service)) {
+ logger(LOG_ERR, _("Could not remove %s service: %s"), identname, winerror(GetLastError()));
+ return false;
+ }
+
+ logger(LOG_INFO, _("%s service removed"), identname);
+
+ return true;
+}
+
+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;
+ }
+
+ if(!running) {
+ status.dwWaitHint = 30000;
+ status.dwCurrentState = SERVICE_STOP_PENDING;
+ SetServiceStatus(statushandle, &status);
+ }
+
+ return NO_ERROR;
+}
+
+VOID WINAPI run_service(DWORD argc, LPTSTR* argv)
{
- cp();
+ int err = 1;
+ 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(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);
- close_network_connections();
+ status.dwWaitHint = 0;
+ status.dwCurrentState = SERVICE_STOPPED;
+ //status.dwWin32ExitCode = err;
+ SetServiceStatus(statushandle, &status);
+ }
- ifdebug(CONNECTIONS)
- dump_device_stats();
+ return;
+}
- logger(LOG_NOTICE, _("Terminating"));
+bool init_service(void) {
+ SERVICE_TABLE_ENTRY services[] = {
+ {identname, run_service},
+ {NULL, NULL}
+ };
- closelog();
- exit(c);
+ if(!StartServiceCtrlDispatcher(services)) {
+ if(GetLastError() == ERROR_FAILED_SERVICE_CONTROLLER_CONNECT) {
+ return false;
+ }
+ else
+ logger(LOG_ERR, _("System call `%s' failed: %s"), "StartServiceCtrlDispatcher", winerror(GetLastError()));
+ }
+
+ return true;
}
+#endif
+#ifndef HAVE_MINGW
/*
check for an existing tinc for this net, and write pid to pidfile
*/
-static int write_pidfile(void)
+static bool write_pidfile(void)
{
int pid;
netname, pid);
else
fprintf(stderr, _("A tincd is already running with pid %d.\n"), pid);
- return 1;
+ return false;
}
/* if it's locked, write-protected, or whatever */
if(!write_pid(pidfilename))
- return 1;
+ return false;
- return 0;
+ return true;
}
+#endif
/*
kill older tincd for this net
*/
-int kill_other(int signal)
+bool kill_other(int signal)
{
+#ifndef HAVE_MINGW
int pid;
cp();
netname);
else
fprintf(stderr, _("No other tincd is running.\n"));
- return 1;
+ return false;
}
errno = 0; /* No error, sometimes errno is only changed on error */
remove_pid(pidfilename);
}
- return 0;
+ return true;
+#else
+ return remove_service();
+#endif
}
/*
Detach from current terminal, write pidfile, kill parent
*/
-int detach(void)
+bool detach(void)
{
cp();
/* First check if we can open a fresh new pidfile */
- if(write_pidfile())
- return -1;
+#ifndef HAVE_MINGW
+ if(!write_pidfile())
+ return false;
/* If we succeeded in doing that, detach */
- closelog();
+ closelogger();
+#endif
if(do_detach) {
- if(daemon(0, 0) < 0) {
+#ifndef HAVE_MINGW
+ if(daemon(0, 0)) {
fprintf(stderr, _("Couldn't detach from terminal: %s"),
strerror(errno));
- return -1;
+ return false;
}
/* Now UPDATE the pid in the pidfile, because we changed it... */
if(!write_pid(pidfilename))
- return -1;
+ return false;
+#else
+ if(!statushandle)
+ exit(install_service());
+#endif
}
openlogger(identname, use_logfile?LOGMODE_FILE:(do_detach?LOGMODE_SYSLOG:LOGMODE_STDERR));
xalloc_fail_func = memory_full;
- return 0;
+ return true;
}
-/*
- 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)
-{
- int save_errno;
-
- cp();
-
- while(*envp)
- putenv(*envp++);
-
- chdir("/");
-
- closelogger();
-
- /* Close all file descriptors */
- fcloseall();
-
- execl(scriptname, NULL);
- /* No return on success */
-
- save_errno = errno;
-
- 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);
-}
-
-/*
- Fork and execute the program pointed to by name.
-*/
-int execute_script(const char *name, char **envp)
+bool execute_script(const char *name, char **envp)
{
+#ifdef HAVE_SYSTEM
pid_t pid;
int status;
struct stat s;
/* First check if there is a script */
if(stat(scriptname, &s))
- return 0;
+ return true;
- pid = fork();
+ /* Set environment */
+
+ while(*envp)
+ putenv(*envp++);
- if(pid < 0) {
- logger(LOG_ERR, _("System call `%s' failed: %s"), "fork",
- strerror(errno));
- return -1;
- }
+ ifdebug(STATUS) logger(LOG_INFO, _("Executing script %s"), name);
- 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 -1;
- } else
- return 0;
- } 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 -1;
- } else { /* Something strange happened */
- logger(LOG_ERR, _("Process %d (%s) terminated abnormally"), pid,
- name);
- return -1;
- }
- } else if (errno != EINTR) {
- logger(LOG_ERR, _("System call `%s' failed: %s"), "waitpid",
- strerror(errno));
- return -1;
- }
+ status = system(scriptname);
- /* Why do we get EINTR? */
- return 0;
- }
+ free(scriptname);
- /* Child here */
+ /* Unset environment? */
- _execute_script(scriptname, envp);
+ if(status != -1) {
+ 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 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);
+ return false;
+ }
+ } else {
+ logger(LOG_ERR, _("System call `%s' failed: %s"), "system",
+ strerror(errno));
+ return false;
+ }
+#endif
+ return true;
}
Signal handlers.
*/
+#ifndef HAVE_MINGW
static RETSIGTYPE sigterm_handler(int a)
{
- logger(LOG_NOTICE, _("Got TERM signal"));
-
- cleanup_and_exit(0);
+ logger(LOG_NOTICE, _("Got %s signal"), "TERM");
+ running = false;
}
static RETSIGTYPE sigquit_handler(int a)
{
- logger(LOG_NOTICE, _("Got QUIT signal"));
- cleanup_and_exit(0);
+ logger(LOG_NOTICE, _("Got %s signal"), "QUIT");
+ running = false;
}
static RETSIGTYPE fatal_signal_square(int a)
static RETSIGTYPE sighup_handler(int a)
{
- logger(LOG_NOTICE, _("Got HUP signal"));
- sighup = 1;
+ 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);
static RETSIGTYPE sigalrm_handler(int a)
{
- logger(LOG_NOTICE, _("Got ALRM signal"));
- sigalrm = 1;
+ logger(LOG_NOTICE, _("Got %s signal"), "ALRM");
+ sigalrm = true;
}
static RETSIGTYPE sigusr1_handler(int a)
static RETSIGTYPE sigwinch_handler(int a)
{
- extern int do_purge;
- do_purge = 1;
+ do_purge = true;
}
static RETSIGTYPE unexpected_signal_handler(int a)
int signal;
void (*handler)(int);
} sighandlers[] = {
- {
- SIGHUP, sighup_handler}, {
- SIGTERM, sigterm_handler}, {
- SIGQUIT, sigquit_handler}, {
- SIGSEGV, fatal_signal_handler}, {
- SIGBUS, fatal_signal_handler}, {
- SIGILL, fatal_signal_handler}, {
- SIGPIPE, ignore_signal_handler}, {
- SIGINT, sigint_handler}, {
- SIGUSR1, sigusr1_handler}, {
- SIGUSR2, sigusr2_handler}, {
- SIGCHLD, ignore_signal_handler}, {
- SIGALRM, sigalrm_handler}, {
- SIGWINCH, sigwinch_handler}, {
- 0, NULL}
+ {SIGHUP, sighup_handler},
+ {SIGTERM, sigterm_handler},
+ {SIGQUIT, sigquit_handler},
+ {SIGSEGV, fatal_signal_handler},
+ {SIGBUS, fatal_signal_handler},
+ {SIGILL, fatal_signal_handler},
+ {SIGPIPE, ignore_signal_handler},
+ {SIGINT, sigint_handler},
+ {SIGUSR1, sigusr1_handler},
+ {SIGUSR2, sigusr2_handler},
+ {SIGCHLD, ignore_signal_handler},
+ {SIGALRM, sigalrm_handler},
+ {SIGWINCH, sigwinch_handler},
+ {0, NULL}
};
+#endif
void setup_signals(void)
{
+#ifndef HAVE_MINGW
int i;
struct sigaction act;
sighandlers[i].signal, strsignal(sighandlers[i].signal),
strerror(errno));
}
+#endif
}
projects / tinc / blobdiff