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Diffstat (limited to 'node/TcpSocket.hpp')
| -rw-r--r-- | node/TcpSocket.hpp | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/node/TcpSocket.hpp b/node/TcpSocket.hpp deleted file mode 100644 index 59d1ec0b..00000000 --- a/node/TcpSocket.hpp +++ /dev/null @@ -1,106 +0,0 @@ -/* - * ZeroTier One - Global Peer to Peer Ethernet - * Copyright (C) 2011-2014 ZeroTier Networks LLC - * - * This program 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. - * - * This program 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 this program. If not, see <http://www.gnu.org/licenses/>. - * - * -- - * - * ZeroTier may be used and distributed under the terms of the GPLv3, which - * are available at: http://www.gnu.org/licenses/gpl-3.0.html - * - * If you would like to embed ZeroTier into a commercial application or - * redistribute it in a modified binary form, please contact ZeroTier Networks - * LLC. Start here: http://www.zerotier.com/ - */ - -#ifndef ZT_TCPSOCKET_HPP -#define ZT_TCPSOCKET_HPP - -#include <stdint.h> - -#include "InetAddress.hpp" -#include "Mutex.hpp" -#include "Utils.hpp" -#include "Socket.hpp" - -namespace ZeroTier { - -class SocketManager; - -/** - * A TCP socket encapsulating ZeroTier packets over a TCP stream connection - * - * This implements a simple packet encapsulation that is designed to look like - * a TLS connection. It's not a TLS connection, but it sends TLS format record - * headers. It could be extended in the future to implement a fake TLS - * handshake. - * - * At the moment, each packet is just made to look like TLS application data: - * <[1] TLS content type> - currently 0x17 for "application data" - * <[1] TLS major version> - currently 0x03 for TLS 1.2 - * <[1] TLS minor version> - currently 0x03 for TLS 1.2 - * <[2] payload length> - 16-bit length of payload in bytes - * <[...] payload> - Message payload - * - * The primary purpose of TCP sockets is to work over ports like HTTPS(443), - * allowing users behind particularly fascist firewalls to at least reach - * ZeroTier's supernodes. UDP is the preferred method of communication as - * encapsulating L2 and L3 protocols over TCP is inherently inefficient - * due to double-ACKs. So TCP is only used as a fallback. - */ -class TcpSocket : public Socket -{ - friend class SharedPtr<Socket>; - friend class SocketManager; - -public: - virtual ~TcpSocket(); - virtual bool send(const InetAddress &to,const void *msg,unsigned int msglen); - -protected: -#ifdef __WINDOWS__ - TcpSocket(SocketManager *sm,SOCKET s,Socket::Type t,bool c,const InetAddress &r) : -#else - TcpSocket(SocketManager *sm,int s,Socket::Type t,bool c,const InetAddress &r) : -#endif - Socket(t,s), - _lastActivity(Utils::now()), - _sm(sm), - _inptr(0), - _outptr(0), - _connecting(c), - _remote(r) - { - //printf("!!! TCP SOCKET CREATED @%.16llx to %s\r\n",(unsigned long long)this,_remote.toString().c_str()); - } - - virtual bool notifyAvailableForRead(const SharedPtr<Socket> &self,SocketManager *sm); - virtual bool notifyAvailableForWrite(const SharedPtr<Socket> &self,SocketManager *sm); - -private: - unsigned char _inbuf[ZT_SOCKET_MAX_MESSAGE_LEN]; - unsigned char _outbuf[ZT_SOCKET_MAX_MESSAGE_LEN * 4]; - uint64_t _lastActivity; // updated whenever data is received, checked directly by SocketManager for stale TCP cleanup - SocketManager *_sm; - unsigned int _inptr; - unsigned int _outptr; - bool _connecting; // manipulated directly by SocketManager, true if connect() is in progress - InetAddress _remote; - Mutex _writeLock; -}; - -} // namespace ZeroTier - -#endif |
