initial commit, 4.5 stable

modules/mbedtls/packet_peer_mbed_dtls.h

@@ -0,0 +1,84 @@
+/**************************************************************************/
+/*  packet_peer_mbed_dtls.h                                               */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* Permission is hereby granted, free of charge, to any person obtaining  */
+/* a copy of this software and associated documentation files (the        */
+/* "Software"), to deal in the Software without restriction, including    */
+/* without limitation the rights to use, copy, modify, merge, publish,    */
+/* distribute, sublicense, and/or sell copies of the Software, and to     */
+/* permit persons to whom the Software is furnished to do so, subject to  */
+/* the following conditions:                                              */
+/*                                                                        */
+/* The above copyright notice and this permission notice shall be         */
+/* included in all copies or substantial portions of the Software.        */
+/*                                                                        */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
+/**************************************************************************/
+
+#pragma once
+
+#include "tls_context_mbedtls.h"
+
+#include "core/io/packet_peer_dtls.h"
+
+#include <mbedtls/timing.h>
+
+class PacketPeerMbedDTLS : public PacketPeerDTLS {
+private:
+	enum {
+		PACKET_BUFFER_SIZE = 65536
+	};
+
+	uint8_t packet_buffer[PACKET_BUFFER_SIZE];
+
+	Status status = STATUS_DISCONNECTED;
+	String hostname;
+
+	Ref<PacketPeerUDP> base;
+
+	static PacketPeerDTLS *_create_func(bool p_notify_postinitialize);
+
+	static int bio_recv(void *ctx, unsigned char *buf, size_t len);
+	static int bio_send(void *ctx, const unsigned char *buf, size_t len);
+	void _cleanup();
+
+protected:
+	Ref<TLSContextMbedTLS> tls_ctx;
+	mbedtls_timing_delay_context timer;
+
+	Error _do_handshake();
+	int _set_cookie();
+
+public:
+	virtual void poll();
+	virtual Error accept_peer(Ref<PacketPeerUDP> p_base, Ref<TLSOptions> p_options, Ref<CookieContextMbedTLS> p_cookies = Ref<CookieContextMbedTLS>());
+	virtual Error connect_to_peer(Ref<PacketPeerUDP> p_base, const String &p_hostname, Ref<TLSOptions> p_options = Ref<TLSOptions>());
+	virtual Status get_status() const;
+
+	virtual void disconnect_from_peer();
+
+	virtual Error get_packet(const uint8_t **r_buffer, int &r_buffer_size);
+	virtual Error put_packet(const uint8_t *p_buffer, int p_buffer_size);
+
+	virtual int get_available_packet_count() const;
+	virtual int get_max_packet_size() const;
+
+	static void initialize_dtls();
+	static void finalize_dtls();
+
+	PacketPeerMbedDTLS();
+	~PacketPeerMbedDTLS();
+};