Re-add support for SIGALRM.

diff --git a/doc/tinc.texi b/doc/tinc.texi
index 7fa4719..daf807b 100644 (file)
--- a/doc/tinc.texi
+++ b/doc/tinc.texi
@@ -1632,6 +1632,13 @@ You can also send the following signals to a running tincd process:
 @c from the manpage
 @table @samp
 
+@item ALRM
+Forces tinc to try to connect to all uplinks immediately.
+Usually tinc attempts to do this itself,
+but increases the time it waits between the attempts each time it failed,
+and if tinc didn't succeed to connect to an uplink the first time after it started,
+it defaults to the maximum time of 15 minutes.
+
 @item HUP
 Partially rereads configuration files.
 Connections to hosts whose host config file are removed are closed.

diff --git a/doc/tincd.8.in b/doc/tincd.8.in
index bb56025..ea72204 100644 (file)
--- a/doc/tincd.8.in
+++ b/doc/tincd.8.in
@@ -98,6 +98,18 @@ Output version information and exit.
 .El
 .Sh SIGNALS
 .Bl -tag -width indent
+.It ALRM
+Forces
+.Nm
+to try to connect to all uplinks immediately.
+Usually
+.Nm
+attempts to do this itself,
+but increases the time it waits between the attempts each time it failed,
+and if
+.Nm
+didn't succeed to connect to an uplink the first time after it started,
+it defaults to the maximum time of 15 minutes.
 .It HUP
 Partially rereads configuration files.
 Connections to hosts whose host config file are removed are closed.
@@ -108,15 +120,6 @@ If the
 .Fl -logfile
 option is used, this will also close and reopen the log file,
 useful when log rotation is used.
-.It INT
-Temporarily increases debug level to 5.
-Send this signal again to revert to the original level.
-.It USR1
-Dumps the connection list to syslog.
-.It USR2
-Dumps virtual network device statistics, all known nodes, edges and subnets to syslog.
-.It WINCH
-Purges all information remembered about unreachable nodes.
 .El
 .Sh DEBUG LEVELS
 The tinc daemon can send a lot of messages to the syslog.

diff --git a/src/net.c b/src/net.c
index aae7396..7ce4f31 100644 (file)
--- a/src/net.c
+++ b/src/net.c
@@ -248,6 +248,11 @@ static void sighup_handler(int signal, short events, void *data) {
        reload_configuration();
 }
 
+static void sigalrm_handler(int signal, short events, void *data) {
+       logger(LOG_NOTICE, "Got %s signal", strsignal(signal));
+       retry();
+}
+
 int reload_configuration(void) {
        connection_t *c;
        splay_node_t *node, *next;
@@ -349,24 +354,24 @@ void retry(void) {
 */
 int main_loop(void) {
        struct event timeout_event;
-       struct event sighup_event;
-       struct event sigterm_event;
-       struct event sigquit_event;
 
        timeout_set(&timeout_event, timeout_handler, &timeout_event);
        event_add(&timeout_event, &(struct timeval){pingtimeout, 0});
 
-#ifdef SIGHUP
+#ifndef HAVE_MINGW
+       struct event sighup_event;
+       struct event sigterm_event;
+       struct event sigquit_event;
+       struct event sigalrm_event;
+
        signal_set(&sighup_event, SIGHUP, sighup_handler, NULL);
        signal_add(&sighup_event, NULL);
-#endif
-#ifdef SIGTERM
        signal_set(&sigterm_event, SIGTERM, sigterm_handler, NULL);
        signal_add(&sigterm_event, NULL);
-#endif
-#ifdef SIGQUIT
        signal_set(&sigquit_event, SIGQUIT, sigterm_handler, NULL);
        signal_add(&sigquit_event, NULL);
+       signal_set(&sigalrm_event, SIGALRM, sigalrm_handler, NULL);
+       signal_add(&sigalrm_event, NULL);
 #endif
 
        if(event_loop(0) < 0) {
@@ -374,12 +379,14 @@ int main_loop(void) {
                return 1;
        }
 
+#ifndef HAVE_MINGW
        signal_del(&sighup_event);
        signal_del(&sigterm_event);
        signal_del(&sigquit_event);
+       signal_del(&sigalrm_event);
+#endif
 
-       if(timeout_initialized(&timeout_event))
-               event_del(&timeout_event);
+       event_del(&timeout_event);
 
        return 0;
 }

diff --git a/src/process.c b/src/process.c
index ee5fce9..0584da6 100644 (file)
--- a/src/process.c
+++ b/src/process.c
@@ -224,7 +224,6 @@ bool init_service(void) {
 */
 bool detach(void) {
 #ifndef HAVE_MINGW
-       signal(SIGALRM, SIG_IGN);
        signal(SIGPIPE, SIG_IGN);
        signal(SIGUSR1, SIG_IGN);
        signal(SIGUSR2, SIG_IGN);