mirror of https://github.com/ShaYmez/xlxd.git
100 lines
2.8 KiB
C++
100 lines
2.8 KiB
C++
//
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// crawsocket.h
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// xlxd
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//
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// Created by Marius Petrescu (YO2LOJ) on 22/02/2020.
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// Copyright © 2020 Marius Petrescu (YO2LOJ). All rights reserved.
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//
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// ----------------------------------------------------------------------------
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// This file is part of xlxd.
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//
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// xlxd 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 3 of the License, or
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// (at your option) any later version.
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//
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// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
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// ----------------------------------------------------------------------------
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// Description:
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// Raw socket access class with protocol specific
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#ifndef crawsocket_h
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#define crawsocket_h
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#include <sys/types.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <arpa/inet.h>
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#include <netinet/ip.h>
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#include <netinet/ip_icmp.h>
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#include "cip.h"
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#include "cbuffer.h"
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////////////////////////////////////////////////////////////////////////////////////////
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// define
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#define RAW_BUFFER_LENMAX 65536
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////////////////////////////////////////////////////////////////////////////////////////
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// class
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class CRawSocket
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{
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public:
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// constructor
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CRawSocket();
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// destructor
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~CRawSocket();
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// open & close
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bool Open(uint16);
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void Close(void);
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int GetSocket(void) { return m_Socket; }
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// read
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// if ETH_P_ALL is used, the received data buffer will hold
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// the ethernet header (struct ethhdr) followed by the IP header (struct iphdr),
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// the protocol header (e.g tcp, udp, icmp) and the data.
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// For specific protocols, the data content may vary depending on the protocol
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// Returns the number of received bytes in buffer
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int Receive(CBuffer *, CIp *, int);
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// ICMP receive helper
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// parameters:
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// buffer - packet receive buffer (starting with ip header)
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// ip - remote address (filled in on receive)
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// timeout - receive timeout in msec
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// return value:
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// ICMP type, -1 if nothing was received
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int IcmpReceive(CBuffer *, CIp *, int);
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// write
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// no write support - complexity makes it out of scope for now
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// to be added if needed
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protected:
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// data
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int m_Socket;
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int m_Proto;
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struct sockaddr_in m_SocketAddr;
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};
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////////////////////////////////////////////////////////////////////////////////////////
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#endif /* crawsocket_h */
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