blob: df9ad25f703f728a79e99c1cad6d570d34006fca (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
#!/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(.*?)\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;
}
# Due to arptables "issues" with displaying device names
# we need to use -v and then do some processing
$line =~ s/\s,\s.*//;
$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 -v`;
unless ($? == 0) { print $table; exit -1 };
&process_table($table);
|