mirror of
https://github.com/kasmtech/KasmVNC.git
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166 lines
4.7 KiB
C++
166 lines
4.7 KiB
C++
/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
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*
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* This is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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* USA.
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*/
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// -=- TcpSocket.h - base-class for TCP stream sockets.
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// This header also defines the TcpListener class, used
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// to listen for incoming socket connections over TCP
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//
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// NB: Any file descriptors created by the TcpSocket or
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// TcpListener classes are close-on-exec if the OS supports
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// it. TcpSockets initialised with a caller-supplied fd
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// are NOT set to close-on-exec.
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#ifndef __NETWORK_TCP_SOCKET_H__
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#define __NETWORK_TCP_SOCKET_H__
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#include <network/Socket.h>
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#ifdef WIN32
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#include <winsock2.h>
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#include <ws2tcpip.h>
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#else
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#include <sys/socket.h> /* for socklen_t */
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#include <netinet/in.h> /* for struct sockaddr_in */
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#endif
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#include <list>
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/* Tunnelling support. */
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#define TUNNEL_PORT_OFFSET 5500
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namespace network {
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/* Tunnelling support. */
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int findFreeTcpPort (void);
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int getSockPort(int sock);
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class TcpSocket : public Socket {
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public:
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TcpSocket(int sock);
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TcpSocket(const char *name, int port);
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virtual char* getPeerAddress();
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virtual char* getPeerEndpoint();
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virtual bool cork(bool enable);
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protected:
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bool enableNagles(bool enable);
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};
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class WebSocket : public Socket {
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public:
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WebSocket(int sock);
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virtual char* getPeerAddress();
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virtual char* getPeerEndpoint();
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virtual bool cork(bool enable) { return true; }
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};
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class TcpListener : public SocketListener {
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public:
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TcpListener(const struct sockaddr *listenaddr, socklen_t listenaddrlen);
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TcpListener(int sock);
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virtual int getMyPort();
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static void getMyAddresses(std::list<char*>* result);
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protected:
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virtual Socket* createSocket(int fd);
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};
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class WebsocketListener : public SocketListener {
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public:
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WebsocketListener(const struct sockaddr *listenaddr, socklen_t listenaddrlen,
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bool sslonly, const char *cert, const char *certkey,
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bool disablebasicauth,
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const char *httpdir);
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virtual int getMyPort();
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static void getMyAddresses(std::list<char*>* result);
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int internalSocket;
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virtual GetAPIMessager *getMessager() { return messager; }
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protected:
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virtual Socket* createSocket(int fd);
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private:
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GetAPIMessager *messager;
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};
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void createLocalTcpListeners(std::list<SocketListener*> *listeners,
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int port);
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void createWebsocketListeners(std::list<SocketListener*> *listeners,
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int port,
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const char *addr,
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bool sslonly,
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const char *cert,
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const char *certkey,
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bool disablebasicauth,
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const char *httpdir);
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void createTcpListeners(std::list<SocketListener*> *listeners,
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const char *addr,
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int port);
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void createTcpListeners(std::list<SocketListener*> *listeners,
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const struct addrinfo *ai);
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void createWebsocketListeners(std::list<SocketListener*> *listeners,
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const struct addrinfo *ai,
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bool sslonly,
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const char *cert,
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const char *certkey,
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bool disablebasicauth,
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const char *httpdir);
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typedef struct vnc_sockaddr {
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union {
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sockaddr sa;
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sockaddr_in sin;
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sockaddr_in6 sin6;
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} u;
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} vnc_sockaddr_t;
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class TcpFilter : public ConnectionFilter {
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public:
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TcpFilter(const char* filter);
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virtual ~TcpFilter();
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virtual bool verifyConnection(Socket* s);
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typedef enum {Accept, Reject, Query} Action;
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struct Pattern {
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Action action;
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vnc_sockaddr_t address;
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unsigned int prefixlen;
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vnc_sockaddr_t mask; // computed from address and prefix
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};
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static Pattern parsePattern(const char* s);
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static char* patternToStr(const Pattern& p);
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protected:
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std::list<Pattern> filter;
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};
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}
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#endif // __NETWORK_TCP_SOCKET_H__
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