## Produce this file with automake to get Makefile.in
-# $Id: Makefile.am,v 1.4.4.6 2000/11/15 13:33:25 guus Exp $
+# $Id: Makefile.am,v 1.4.4.7 2000/11/16 17:54:27 zarq Exp $
sbin_PROGRAMS = tincd
-tincd_SOURCES = conf.c connlist.c meta.c net.c netutl.c protocol.c subnet.c tincd.c
+tincd_SOURCES = conf.c connlist.c meta.c net.c netutl.c process.c \
+ protocol.c subnet.c tincd.c
INCLUDES = @INCLUDES@ -I$(top_builddir) -I$(top_srcdir)/lib -I$(top_srcdir)/intl
-noinst_HEADERS = conf.h connlist.h meta.h net.h netutl.h protocol.h subnet.h
+noinst_HEADERS = conf.h connlist.h meta.h net.h netutl.h process.h \
+ protocol.h subnet.h
LIBS = @LIBS@ @INTLLIBS@
localedir = $(datadir)/locale
-CFLAGS = @CFLAGS@ -DPKGLIBDIR=$(pkglibdir) -DCONFDIR=\"@sysconfdir@\" -DLOCALEDIR=\"$(localedir)\"
+CFLAGS = @CFLAGS@ -DPKGLIBDIR=$(pkglibdir) -DCONFDIR=\"@sysconfdir@\" \
+ -DLOCALEDIR=\"$(localedir)\"
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: net.c,v 1.35.4.74 2000/11/15 22:07:36 zarq Exp $
+ $Id: net.c,v 1.35.4.75 2000/11/16 17:54:27 zarq Exp $
*/
#include "config.h"
#include "meta.h"
#include "net.h"
#include "netutl.h"
+#include "process.h"
#include "protocol.h"
#include "subnet.h"
subnet_t mymac;
-list_t *child_pids;
-
-void _execute_script(const char *name)
-{
- int error = 0;
- char *scriptname;
- char *s;
- int fd;
-
- if(netname)
- {
- asprintf(&s, "NETNAME=%s", netname);
- putenv(s); /* Don't free s! see man 3 putenv */
- }
-#ifdef HAVE_UNSETENV
- else
- {
- unsetenv("NETNAME");
- }
-#endif
-
- if(chdir(confbase) < 0)
- /* This cannot fail since we already read config files from this
- directory. - Guus */
- /* Yes this can fail, somebody could have removed this directory
- when we didn't pay attention. - Ivo */
- {
- if(chdir("/") < 0)
- /* Now if THIS fails, something wicked is going on. - Ivo */
- syslog(LOG_ERR, _("Couldn't chdir to `/': %m"));
-
- /* Continue anyway. */
- }
-
- asprintf(&scriptname, "%s/%s", confbase, name);
-
- /* Close all file descriptors */
- closelog();
- fcloseall();
-
- /* Open standard input */
- if(open("/dev/null", O_RDONLY) < 0)
- {
- syslog(LOG_ERR, _("Opening `/dev/null' failed: %m"));
- error = 1;
- }
-
- if(!error)
- {
- /* Standard output directly goes to syslog */
- openlog(name, LOG_CONS | LOG_PID, LOG_DAEMON);
- /* Standard error as well */
- if(dup2(1, 2) < 0)
- {
- syslog(LOG_ERR, _("System call `%s' failed: %m"),
- "dup2");
- error = 1;
- }
- }
-
- if(error && debug_lvl > 1)
- syslog(LOG_INFO, _("This means that any output the script generates will not be shown in syslog."));
-
- execl(scriptname, NULL);
- /* No return on success */
-
- if(errno != ENOENT) /* Ignore if the file does not exist */
- syslog(LOG_WARNING, _("Error executing `%s': %m"), scriptname);
-
- /* No need to free things */
- exit(0);
-}
-
-/*
- Execute the given script.
- This function doesn't really belong here.
-*/
-int execute_script(const char *name)
-{
- pid_t pid;
-
- if((pid = fork()) < 0)
- {
- syslog(LOG_ERR, _("System call `%s' failed: %m"),
- "fork");
- return -1;
- }
-
- if(pid)
- {
- list_append(child_pids, pid);
- return 0;
- }
-
- /* Child here */
-
- _execute_script(name);
-}
-
-int check_child(void *data)
-{
- pid_t pid;
- int status;
-
- pid = (pid_t) data;
- pid = waitpid(pid, &status, WNOHANG);
- if(WIFEXITED(status))
- {
- if(WIFSIGNALED(status)) /* Child was killed by a signal */
- {
- syslog(LOG_ERR, _("Child with PID %d was killed by signal %d (%s)"),
- pid, WTERMSIG(status), strsignal(WTERMSIG(status)));
- return -1;
- }
- if(WEXITSTATUS(status) != 0)
- {
- syslog(LOG_INFO, _("Child with PID %d exited with code %d"),
- WEXITSTATUS(status));
- }
- return -1;
- }
-}
-
-void check_children(void)
-{
- list_forall_nodes(child_pids, check_child);
-}
-
int xsend(conn_list_t *cl, vpn_packet_t *inpkt)
{
vpn_packet_t outpkt;
--- /dev/null
+/*
+ process.c -- process management functions
+ Copyright (C) 1999,2000 Ivo Timmermans <itimmermans@bigfoot.com>,
+ 2000 Guus Sliepen <guus@sliepen.warande.net>
+
+ 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+ $Id: process.c,v 1.1.2.1 2000/11/16 17:54:28 zarq Exp $
+*/
+
+#include "config.h"
+
+#include <list.h>
+
+/* A list containing all our children */
+list_t *child_pids;
+
+/* If zero, don't detach from the terminal. */
+int do_detach = 1;
+
+/*
+ Detach from current terminal, write pidfile, kill parent
+*/
+int detach(void)
+{
+ int fd;
+ pid_t pid;
+
+ if(do_detach)
+ {
+ ppid = getpid();
+
+ if((pid = fork()) < 0)
+ {
+ perror("fork");
+ return -1;
+ }
+ if(pid) /* parent process */
+ {
+ signal(SIGTERM, parent_exit);
+ sleep(600); /* wait 10 minutes */
+ exit(1);
+ }
+ }
+
+ if(write_pidfile())
+ return -1;
+
+ if(do_detach)
+ {
+ if((fd = open("/dev/tty", O_RDWR)) >= 0)
+ {
+ if(ioctl(fd, TIOCNOTTY, NULL))
+ {
+ perror("ioctl");
+ return -1;
+ }
+ close(fd);
+ }
+
+ if(setsid() < 0)
+ return -1;
+
+ kill(ppid, SIGTERM);
+ }
+
+ chdir("/"); /* avoid keeping a mointpoint busy */
+
+ openlog(identname, LOG_CONS | LOG_PID, LOG_DAEMON);
+
+ if(debug_lvl > DEBUG_NOTHING)
+ syslog(LOG_NOTICE, _("tincd %s (%s %s) starting, debug level %d"),
+ VERSION, __DATE__, __TIME__, debug_lvl);
+ else
+ syslog(LOG_NOTICE, _("tincd %s starting"), VERSION);
+
+ xalloc_fail_func = memory_full;
+
+ return 0;
+}
+
+/*
+ Execute the program name, with sane environment. All output will be
+ redirected to syslog.
+*/
+void _execute_script(const char *name)
+{
+ int error = 0;
+ char *scriptname;
+ char *s;
+ int fd;
+
+ if(netname)
+ {
+ asprintf(&s, "NETNAME=%s", netname);
+ putenv(s); /* Don't free s! see man 3 putenv */
+ }
+#ifdef HAVE_UNSETENV
+ else
+ {
+ unsetenv("NETNAME");
+ }
+#endif
+
+ if(chdir(confbase) < 0)
+ /* This cannot fail since we already read config files from this
+ directory. - Guus */
+ /* Yes this can fail, somebody could have removed this directory
+ when we didn't pay attention. - Ivo */
+ {
+ if(chdir("/") < 0)
+ /* Now if THIS fails, something wicked is going on. - Ivo */
+ syslog(LOG_ERR, _("Couldn't chdir to `/': %m"));
+
+ /* Continue anyway. */
+ }
+
+ asprintf(&scriptname, "%s/%s", confbase, name);
+
+ /* Close all file descriptors */
+ closelog();
+ fcloseall();
+
+ /* Open standard input */
+ if(open("/dev/null", O_RDONLY) < 0)
+ {
+ syslog(LOG_ERR, _("Opening `/dev/null' failed: %m"));
+ error = 1;
+ }
+
+ if(!error)
+ {
+ /* Standard output directly goes to syslog */
+ openlog(name, LOG_CONS | LOG_PID, LOG_DAEMON);
+ /* Standard error as well */
+ if(dup2(1, 2) < 0)
+ {
+ syslog(LOG_ERR, _("System call `%s' failed: %m"),
+ "dup2");
+ error = 1;
+ }
+ }
+
+ if(error && debug_lvl > 1)
+ syslog(LOG_INFO, _("This means that any output the script generates will not be shown in syslog."));
+
+ execl(scriptname, NULL);
+ /* No return on success */
+
+ if(errno != ENOENT) /* Ignore if the file does not exist */
+ syslog(LOG_WARNING, _("Error executing `%s': %m"), scriptname);
+
+ /* No need to free things */
+ exit(0);
+}
+
+/*
+ Fork and execute the program pointed to by name.
+*/
+int execute_script(const char *name)
+{
+ pid_t pid;
+
+ if((pid = fork()) < 0)
+ {
+ syslog(LOG_ERR, _("System call `%s' failed: %m"),
+ "fork");
+ return -1;
+ }
+
+ if(pid)
+ {
+ list_append(child_pids, pid);
+ return 0;
+ }
+
+ /* Child here */
+
+ _execute_script(name);
+}
+
+/*
+ Check a child (the pointer data is actually an integer, the PID of
+ that child. A non-zero return value means that the child has exited
+ and can be removed from our list.
+*/
+int check_child(void *data)
+{
+ pid_t pid;
+ int status;
+
+ pid = (pid_t) data;
+ pid = waitpid(pid, &status, WNOHANG);
+ if(WIFEXITED(status))
+ {
+ if(WIFSIGNALED(status)) /* Child was killed by a signal */
+ {
+ syslog(LOG_ERR, _("Child with PID %d was killed by signal %d (%s)"),
+ pid, WTERMSIG(status), strsignal(WTERMSIG(status)));
+ return -1;
+ }
+ if(WEXITSTATUS(status) != 0)
+ {
+ syslog(LOG_INFO, _("Child with PID %d exited with code %d"),
+ WEXITSTATUS(status));
+ }
+ return -1;
+ }
+
+ /* Child is still running */
+ return 0;
+}
+
+/*
+ Check the status of all our children.
+*/
+void check_children(void)
+{
+ list_forall_nodes(child_pids, check_child);
+}
+
+
+
+/*
+ Signal handlers.
+*/
+
+RETSIGTYPE
+sigterm_handler(int a)
+{
+ if(debug_lvl > DEBUG_NOTHING)
+ syslog(LOG_NOTICE, _("Got TERM signal"));
+
+ cleanup_and_exit(0);
+}
+
+RETSIGTYPE
+sigquit_handler(int a)
+{
+ if(debug_lvl > DEBUG_NOTHING)
+ syslog(LOG_NOTICE, _("Got QUIT signal"));
+ cleanup_and_exit(0);
+}
+
+RETSIGTYPE
+sigsegv_square(int a)
+{
+ syslog(LOG_ERR, _("Got another SEGV signal: not restarting"));
+ exit(0);
+}
+
+RETSIGTYPE
+sigsegv_handler(int a)
+{
+ syslog(LOG_ERR, _("Got SEGV signal"));
+ cp_trace();
+
+ if(do_detach)
+ {
+ syslog(LOG_NOTICE, _("Trying to re-execute in 5 seconds..."));
+ signal(SIGSEGV, sigsegv_square);
+ close_network_connections();
+ sleep(5);
+ remove_pid(pidfilename);
+ execvp(g_argv[0], g_argv);
+ }
+ else
+ {
+ syslog(LOG_NOTICE, _("Not restarting."));
+ exit(0);
+ }
+}
+
+RETSIGTYPE
+sighup_handler(int a)
+{
+ if(debug_lvl > DEBUG_NOTHING)
+ syslog(LOG_NOTICE, _("Got HUP signal"));
+ sighup = 1;
+}
+
+RETSIGTYPE
+sigint_handler(int a)
+{
+ if(debug_lvl > DEBUG_NOTHING)
+ syslog(LOG_NOTICE, _("Got INT signal, exiting"));
+ cleanup_and_exit(0);
+}
+
+RETSIGTYPE
+sigusr1_handler(int a)
+{
+ dump_conn_list();
+}
+
+RETSIGTYPE
+sigusr2_handler(int a)
+{
+ dump_subnet_list();
+}
+
+RETSIGTYPE
+sighuh(int a)
+{
+ syslog(LOG_WARNING, _("Got unexpected signal %d (%s)"), a, strsignal(a));
+ cp_trace();
+}
+
+void
+setup_signals(void)
+{
+ int i;
+
+ for(i=0;i<32;i++)
+ signal(i,sighuh);
+
+ if(signal(SIGTERM, SIG_IGN) != SIG_ERR)
+ signal(SIGTERM, sigterm_handler);
+ if(signal(SIGQUIT, SIG_IGN) != SIG_ERR)
+ signal(SIGQUIT, sigquit_handler);
+ if(signal(SIGSEGV, SIG_IGN) != SIG_ERR)
+ signal(SIGSEGV, sigsegv_handler);
+ if(signal(SIGHUP, SIG_IGN) != SIG_ERR)
+ signal(SIGHUP, sighup_handler);
+ signal(SIGPIPE, SIG_IGN);
+ if(signal(SIGINT, SIG_IGN) != SIG_ERR)
+ signal(SIGINT, sigint_handler);
+ signal(SIGUSR1, sigusr1_handler);
+ signal(SIGUSR2, sigusr2_handler);
+ signal(SIGCHLD, SIG_IGN);
+}
+
+RETSIGTYPE parent_exit(int a)
+{
+ exit(0);
+}
--- /dev/null
+/*
+ process.h -- header file for process.c
+ Copyright (C) 1999,2000 Ivo Timmermans <itimmermans@bigfoot.com>,
+ 2000 Guus Sliepen <guus@sliepen.warande.net>
+
+ 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+ $Id: process.h,v 1.1.2.1 2000/11/16 17:54:28 zarq Exp $
+*/
+
+#ifndef __TINC_PROCESS_H__
+#define __TINC_PROCESS_H__
+
+#include <list.h>
+
+extern list_t *child_pids;
+
+#endif /* __TINC_PROCESS_H__ */
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: tincd.c,v 1.10.4.28 2000/11/15 01:06:13 zarq Exp $
+ $Id: tincd.c,v 1.10.4.29 2000/11/16 17:54:29 zarq Exp $
*/
#include "config.h"
static int kill_tincd = 0;
/* If zero, don't detach from the terminal. */
-static int do_detach = 1;
+extern int do_detach;
/* If nonzero, generate public/private keypair for this host/net. */
static int generate_keys = 0;
exit(1);
}
-/*
- Detach from current terminal, write pidfile, kill parent
-*/
-int detach(void)
-{
- int fd;
- pid_t pid;
-
- if(do_detach)
- {
- ppid = getpid();
-
- if((pid = fork()) < 0)
- {
- perror("fork");
- return -1;
- }
- if(pid) /* parent process */
- {
- signal(SIGTERM, parent_exit);
- sleep(600); /* wait 10 minutes */
- exit(1);
- }
- }
-
- if(write_pidfile())
- return -1;
-
- if(do_detach)
- {
- if((fd = open("/dev/tty", O_RDWR)) >= 0)
- {
- if(ioctl(fd, TIOCNOTTY, NULL))
- {
- perror("ioctl");
- return -1;
- }
- close(fd);
- }
-
- if(setsid() < 0)
- return -1;
-
- kill(ppid, SIGTERM);
- }
-
- chdir("/"); /* avoid keeping a mointpoint busy */
-
- openlog(identname, LOG_CONS | LOG_PID, LOG_DAEMON);
-
- if(debug_lvl > DEBUG_NOTHING)
- syslog(LOG_NOTICE, _("tincd %s (%s %s) starting, debug level %d"),
- VERSION, __DATE__, __TIME__, debug_lvl);
- else
- syslog(LOG_NOTICE, _("tincd %s starting"), VERSION);
-
- xalloc_fail_func = memory_full;
-
- return 0;
-}
-
/*
Close network connections, and terminate neatly
*/
}
}
-RETSIGTYPE
-sigterm_handler(int a)
-{
- if(debug_lvl > DEBUG_NOTHING)
- syslog(LOG_NOTICE, _("Got TERM signal"));
-
- cleanup_and_exit(0);
-}
-
-RETSIGTYPE
-sigquit_handler(int a)
-{
- if(debug_lvl > DEBUG_NOTHING)
- syslog(LOG_NOTICE, _("Got QUIT signal"));
- cleanup_and_exit(0);
-}
-
-RETSIGTYPE
-sigsegv_square(int a)
-{
- syslog(LOG_ERR, _("Got another SEGV signal: not restarting"));
- exit(0);
-}
-
-RETSIGTYPE
-sigsegv_handler(int a)
-{
- syslog(LOG_ERR, _("Got SEGV signal"));
- cp_trace();
-
- if(do_detach)
- {
- syslog(LOG_NOTICE, _("Trying to re-execute in 5 seconds..."));
- signal(SIGSEGV, sigsegv_square);
- close_network_connections();
- sleep(5);
- remove_pid(pidfilename);
- execvp(g_argv[0], g_argv);
- }
- else
- {
- syslog(LOG_NOTICE, _("Not restarting."));
- exit(0);
- }
-}
-
-RETSIGTYPE
-sighup_handler(int a)
-{
- if(debug_lvl > DEBUG_NOTHING)
- syslog(LOG_NOTICE, _("Got HUP signal"));
- sighup = 1;
-}
-
-RETSIGTYPE
-sigint_handler(int a)
-{
- if(debug_lvl > DEBUG_NOTHING)
- syslog(LOG_NOTICE, _("Got INT signal, exiting"));
- cleanup_and_exit(0);
-}
-
-RETSIGTYPE
-sigusr1_handler(int a)
-{
- dump_conn_list();
-}
-
-RETSIGTYPE
-sigusr2_handler(int a)
-{
- dump_subnet_list();
-}
-
-RETSIGTYPE
-sighuh(int a)
-{
- syslog(LOG_WARNING, _("Got unexpected signal %d (%s)"), a, strsignal(a));
- cp_trace();
-}
-
-void
-setup_signals(void)
-{
- int i;
-
- for(i=0;i<32;i++)
- signal(i,sighuh);
-
- if(signal(SIGTERM, SIG_IGN) != SIG_ERR)
- signal(SIGTERM, sigterm_handler);
- if(signal(SIGQUIT, SIG_IGN) != SIG_ERR)
- signal(SIGQUIT, sigquit_handler);
- if(signal(SIGSEGV, SIG_IGN) != SIG_ERR)
- signal(SIGSEGV, sigsegv_handler);
- if(signal(SIGHUP, SIG_IGN) != SIG_ERR)
- signal(SIGHUP, sighup_handler);
- signal(SIGPIPE, SIG_IGN);
- if(signal(SIGINT, SIG_IGN) != SIG_ERR)
- signal(SIGINT, sigint_handler);
- signal(SIGUSR1, sigusr1_handler);
- signal(SIGUSR2, sigusr2_handler);
- signal(SIGCHLD, SIG_IGN);
-}
-
-RETSIGTYPE parent_exit(int a)
-{
- exit(0);
-}
projects / oweals / tinc.git / commitdiff