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#!/usr/bin/perl -w
#
#
# A script that generates text output of the arptables rules.
# Similar to iptables-save.
use strict;
my $table;
my $tool = "__EXEC_PATH__/arptables";
# ========================================================
# Process filter table
# ========================================================
sub process_table {
my $chain = "";
my $rules = "";
my $chains = "";
my $custom_chains = "";
my $line = "";
foreach $line (split("\n",$_[0])) {
if ($line =~ m/Chain\s(.*?)\s\(policy\s(.*?)\)/) {
$chains = $chains . ":$1 $2\n";
$chain = $1;
next;
}
if ($line =~ m/Chain\s(.*?)\s\(/) {
$custom_chains = $custom_chains . ":$1 -\n";
$chain = $1;
next;
}
if ($line =~ m/^$/) {
next;
}
$rules = $rules . "-A $chain $line\n";
}
print "*filter\n";
print $chains;
print $custom_chains;
print $rules;
print "\n";
}
# ========================================================
unless (-x "$tool") { print "ERROR: Tool $tool isn't executable"; exit -1; };
$table =`$tool -t filter -L -n`;
unless ($? == 0) { print $table; exit -1 };
&process_table($table);
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