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/*
* Module: lbtest_ttl.hh
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*/
#ifndef __LBTEST_TTL_HH__
#define __LBTEST_TTL_HH__
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <iostream>
#include "lbdata.hh"
using namespace std;
class LBTestTTL;
/**
*
*
**/
class TTLEngine
{
class PktData
{
public:
PktData(string iface, int rtt) : _iface(iface),_rtt(rtt) {}
string _iface;
int _rtt;
};
public:
TTLEngine() :
_debug(true),
_initialized(false),
_received(false),
_packet_id(32767),
_min_port_id(32767),
_max_port_id(55000)
{}
void
init();
int
process(LBHealth &health,LBTestTTL *data);
int
recv(LBHealth &health,LBTestTTL *data);
private:
void
send(int sock, const string &iface, const string &target_addr, unsigned short packet_id, string address, int ttl, unsigned short port);
int
receive(int sock);
unsigned short
udp_checksum(unsigned char ucProto, char *pPacket, int iLength, unsigned long ulSourceAddress, unsigned long ulDestAddress);
unsigned short
in_checksum(unsigned short *pAddr, int iLen);
unsigned short
get_new_packet_id();
private:
bool _debug;
bool _initialized;
bool _received;
unsigned short _packet_id;
unsigned short _min_port_id;
unsigned long _max_port_id;
map<int,PktData> _results;
};
/**
*
*
**/
class LBTestTTL : public LBTest
{
public:
LBTestTTL(bool debug) :
LBTest(debug),
_ttl(0),
_port(0)
{}
LBTestTTL(bool debug, unsigned short ttl, unsigned short port) :
LBTest(debug),
_ttl(ttl),
_port(port)
{}
~LBTestTTL() {}
void
init() {_engine.init();this->LBTest::init();}
void
send(LBHealth &health) {_engine.process(health,this);}
int
recv(LBHealth &health) {return _engine.recv(health,this);}
unsigned short
get_ttl() const {return _ttl;}
unsigned short
get_port() const {return _port;}
void
set_ttl(unsigned short ttl) {_ttl = ttl;}
void
set_port(unsigned short port) {_port = port;}
string
dump();
private:
static TTLEngine _engine; //singleton
bool _debug;
unsigned short _ttl;
unsigned short _port;
};
#endif //__LBTEST_TTL_HH__
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