1/**************************************************************************/
2/* packet_peer_mbed_dtls.h */
3/**************************************************************************/
4/* This file is part of: */
5/* GODOT ENGINE */
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8/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
9/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
10/* */
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20/* included in all copies or substantial portions of the Software. */
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29/**************************************************************************/
30
31#ifndef PACKET_PEER_MBED_DTLS_H
32#define PACKET_PEER_MBED_DTLS_H
33
34#include "tls_context_mbedtls.h"
35
36#include "core/io/packet_peer_dtls.h"
37
38#include <mbedtls/timing.h>
39
40class PacketPeerMbedDTLS : public PacketPeerDTLS {
41private:
42 enum {
43 PACKET_BUFFER_SIZE = 65536
44 };
45
46 uint8_t packet_buffer[PACKET_BUFFER_SIZE];
47
48 Status status = STATUS_DISCONNECTED;
49 String hostname;
50
51 Ref<PacketPeerUDP> base;
52
53 static PacketPeerDTLS *_create_func();
54
55 static int bio_recv(void *ctx, unsigned char *buf, size_t len);
56 static int bio_send(void *ctx, const unsigned char *buf, size_t len);
57 void _cleanup();
58
59protected:
60 Ref<TLSContextMbedTLS> tls_ctx;
61 mbedtls_timing_delay_context timer;
62
63 Error _do_handshake();
64 int _set_cookie();
65
66public:
67 virtual void poll();
68 virtual Error accept_peer(Ref<PacketPeerUDP> p_base, Ref<TLSOptions> p_options, Ref<CookieContextMbedTLS> p_cookies = Ref<CookieContextMbedTLS>());
69 virtual Error connect_to_peer(Ref<PacketPeerUDP> p_base, const String &p_hostname, Ref<TLSOptions> p_options = Ref<TLSOptions>());
70 virtual Status get_status() const;
71
72 virtual void disconnect_from_peer();
73
74 virtual Error get_packet(const uint8_t **r_buffer, int &r_buffer_size);
75 virtual Error put_packet(const uint8_t *p_buffer, int p_buffer_size);
76
77 virtual int get_available_packet_count() const;
78 virtual int get_max_packet_size() const;
79
80 static void initialize_dtls();
81 static void finalize_dtls();
82
83 PacketPeerMbedDTLS();
84 ~PacketPeerMbedDTLS();
85};
86
87#endif // PACKET_PEER_MBED_DTLS_H
88