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/*
Functions and classes which keep track of and use regexes to classify streams
of application data.
By Ethan Sommer <sommere@users.sf.net> and Matthew Strait
<quadong@users.sf.net>, (C) Nov 2006-2007
http://l7-filter.sf.net
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
2 of the License, or (at your option) any later version.
http://www.gnu.org/licenses/gpl.txt
*/
#ifndef L7_CLASSIFY_H
#define L7_CLASSIFY_H
using namespace std;
#include <string>
#include <list>
#include <sys/types.h>
#include <regex.h>
#include "l7-conntrack.h"
class l7_pattern {
private:
int mark; // this is the mark as it appears in the config file
// before it goes to netfilter, it will get modified by the mask
string pattern_string;
int eflags; // for regexec
int cflags; // for regcomp
string name;
regex_t preg;//the compiled regex
char * pre_process(const char * s);
int hex2dec(char c);
public:
l7_pattern(string name,string pattern_string,int eflags,int cflags,int mark);
~l7_pattern();
bool matches(char * buffer);
string getName();
int getMark();
};
class l7_classify {
private:
int add_pattern_from_file(const string filename, int mark);
list<l7_pattern *> patterns;
public:
l7_classify(string filename);
~l7_classify();
int classify(char * buffer);
};
#endif
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