Merge branch 'upstream' into develop

1 files changed, 44 insertions, 2 deletions

diff --git a/src/openvpn/ping.h b/src/openvpn/ping.h
index 05793b4..7518404 100644
--- a/src/openvpn/ping.h
+++ b/src/openvpn/ping.h
@@ -5,7 +5,7 @@
  *             packet encryption, packet authentication, and
  *             packet compression.
  *
- *  Copyright (C) 2002-2018 OpenVPN Inc <sales@openvpn.net>
+ *  Copyright (C) 2002-2021 OpenVPN Inc <sales@openvpn.net>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License version 2
@@ -43,4 +43,46 @@ is_ping_msg(const struct buffer *buf)
     return buf_string_match(buf, ping_string, PING_STRING_SIZE);
 }
 
-#endif
+/**
+ * Trigger the correct signal on a --ping timeout
+ * depending if --ping-exit is set (SIGTERM) or not
+ * (SIGUSR1)
+ */
+void trigger_ping_timeout_signal(struct context *c);
+
+void check_ping_send_dowork(struct context *c);
+
+/*
+ * Should we exit or restart due to ping (or other authenticated packet)
+ * not received in n seconds?
+ */
+static inline void
+check_ping_restart(struct context *c)
+{
+    if (c->options.ping_rec_timeout
+        && event_timeout_trigger(&c->c2.ping_rec_interval,
+                                 &c->c2.timeval,
+                                 (!c->options.ping_timer_remote
+                                  || link_socket_actual_defined(&c->c1.link_socket_addr.actual))
+                                 ? ETT_DEFAULT : 15))
+    {
+        trigger_ping_timeout_signal(c);
+    }
+}
+
+/*
+ * Should we ping the remote?
+ */
+static inline void
+check_ping_send(struct context *c)
+{
+    if (c->options.ping_send_timeout
+        && event_timeout_trigger(&c->c2.ping_send_interval,
+                                 &c->c2.timeval,
+                                 !TO_LINK_DEF(c) ? ETT_DEFAULT : 1))
+    {
+        check_ping_send_dowork(c);
+    }
+}
+
+#endif /* ifndef PING_H */