1 files changed, 54 insertions, 0 deletions
diff --git a/libs/libtox/src/toxcore/ping.h b/libs/libtox/src/toxcore/ping.h
new file mode 100644
index 0000000000..cc3428c548
--- /dev/null
+++ b/libs/libtox/src/toxcore/ping.h
@@ -0,0 +1,54 @@
+/*
+ * Buffered pinging using cyclic arrays.
+ */
+
+/*
+ * Copyright © 2016-2017 The TokTok team.
+ * Copyright © 2013 Tox project.
+ * Copyright © 2013 plutooo
+ *
+ * This file is part of Tox, the free peer to peer instant messenger.
+ * This file is donated to the Tox Project.
+ *
+ * Tox 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Tox 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 Tox.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef PING_H
+#define PING_H
+
+#include "DHT.h"
+#include "network.h"
+
+#include <stdint.h>
+
+typedef struct PING PING;
+
+/* Add nodes to the to_ping list.
+ * All nodes in this list are pinged every TIME_TOPING seconds
+ * and are then removed from the list.
+ * If the list is full the nodes farthest from our public_key are replaced.
+ * The purpose of this list is to enable quick integration of new nodes into the
+ * network while preventing amplification attacks.
+ *
+ *  return 0 if node was added.
+ *  return -1 if node was not added.
+ */
+int add_to_ping(PING *ping, const uint8_t *public_key, IP_Port ip_port);
+void do_to_ping(PING *ping);
+
+PING *new_ping(DHT *dht);
+void kill_ping(PING *ping);
+
+int send_ping_request(PING *ping, IP_Port ipp, const uint8_t *public_key);
+
+#endif /* PING_H */