Servertalk implementation wip, added optional support for pub-key authenticated encryption (via libsodium), not backwards compatible.

common/net/servertalk_server_connection.h

@@ -0,0 +1,51 @@
+#pragma once
+
+#include "tcp_connection.h"
+#include "servertalk_common.h"
+#include "packet.h"
+#include <vector>
+#include <sodium.h>
+
+namespace EQ
+{
+	namespace Net
+	{
+		class ServertalkServer;
+		class ServertalkServerConnection
+		{
+		public:
+			ServertalkServerConnection(std::shared_ptr<EQ::Net::TCPConnection> c, ServertalkServer *parent, bool encrypted);
+			~ServertalkServerConnection();
+
+			std::string GetIdentifier() const {
+				return m_identifier;
+			}
+		private:
+			void OnRead(TCPConnection* c, const unsigned char* data, size_t sz);
+			void ProcessReadBuffer();
+			void OnDisconnect(TCPConnection* c);
+			void SendHello();
+			void InternalSend(ServertalkPacketType type, EQ::Net::Packet &p);
+			void ProcessHandshake(EQ::Net::Packet &p);
+			void ProcessMessage(EQ::Net::Packet &p);
+
+			std::shared_ptr<EQ::Net::TCPConnection> m_connection;
+			ServertalkServer *m_parent;
+
+			std::vector<char> m_buffer;
+			std::string m_identifier;
+
+			bool m_encrypted;
+#ifdef ENABLE_SECURITY
+			unsigned char m_public_key_ours[crypto_box_PUBLICKEYBYTES];
+			unsigned char m_private_key_ours[crypto_box_SECRETKEYBYTES];
+			unsigned char m_nonce_ours[crypto_box_NONCEBYTES];
+
+			unsigned char m_public_key_theirs[crypto_box_PUBLICKEYBYTES];
+			unsigned char m_nonce_theirs[crypto_box_NONCEBYTES];
+
+			unsigned char m_shared_key[crypto_box_BEFORENMBYTES];
+#endif
+		};
+	}
+}