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
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
#!/usr/bin/perl
package Vyatta::FirewallOpMode::Summary;
use lib "/opt/vyatta/share/perl5/";
use Vyatta::Config;
use Vyatta::IpTables::Rule;
use Vyatta::IpTables::IpSet;
use Vyatta::IpTables::AddressFilter;
use Vyatta::Zone;
use Data::Dumper;
use warnings;
use strict;
sub show_interfaces_zones {
my ($chain, $tree, $cfg, $cfg_ifs) = @_;
$cfg->setLevel("");
my $outhash = {};
my @int_strs = ();
my @zone_strs = ();
my $content_str = "";
for (@{$cfg_ifs}) {
my ($iname, $ipath) = ($_->{name}, $_->{path});
for my $dir ($cfg->listOrigNodes("$ipath firewall")) {
my $ichain = $cfg->returnOrigValue("$ipath firewall $dir $tree");
if (defined($ichain) and $ichain eq $chain) {
$dir =~ y/a-z/A-Z/;
push @int_strs, "($iname,$dir)";
}
}
}
$outhash->{'interfaces'} = \@int_strs;
# check if chain used to filter traffic between zones
my $used_in_zonefw=0;
my @all_zones = Vyatta::Zone::get_all_zones("listOrigNodes");
foreach my $zone (sort(@all_zones)) {
my @from_zones = Vyatta::Zone::get_from_zones("listOrigNodes", $zone);
my @from_zones_using_this_chain=();
foreach my $from_zone (sort(@from_zones)) {
my $fw_ruleset=Vyatta::Zone::get_firewall_ruleset("returnOrigValue",
$zone, $from_zone, $tree);
if (defined $fw_ruleset && $fw_ruleset eq $chain) {
push (@from_zones_using_this_chain, $from_zone);
if ($used_in_zonefw == 0) {
$used_in_zonefw++;
}
}
}
if (scalar(@from_zones_using_this_chain) > 0) {
my $single_or_multiple_zone = 'zone';
if (scalar(@from_zones_using_this_chain) > 1) {
$single_or_multiple_zone = 'zones';
}
my $string_fromzones=join(', ', sort(@from_zones_using_this_chain));
push @zone_strs, "zone [$zone] from $single_or_multiple_zone [$string_fromzones]";
}
}
$outhash->{'zones'} = \@zone_strs;
# check if content-inspection is using this ruleset
my $custom_filter = 0;
my $config = $cfg;
$config->setLevel("content-inspection traffic-filter");
my $custom_traffic_filter = $config->returnOrigValue('custom');
if ((defined $custom_traffic_filter) && ($custom_traffic_filter eq $chain)) {
$custom_filter = 1;
$content_str = "Active on all incoming and forwarded traffic for content-inspection";
}
$outhash->{'content-inspection'} = $content_str;
return $outhash;
}
# mapping from config node to printable string describing it.
my %description_hash = ( 'name' => 'IPv4',
'ipv6-name' => 'IPv6',
'modify' => 'IPv4 Modify',
'ipv6-modify' => 'IPv6 Modify');
sub show_tree {
my ($tree, $config) = @_;
my $tree_hash = {};
my @cfg_ifs = Vyatta::Interface::get_all_cfg_interfaces(1);
my $description = $description_hash{$tree};
$config->setLevel("firewall $tree");
my @chains = $config->listOrigNodes();
my $chain_cnt=0;
foreach (sort @chains) {
$chain_cnt++;
$tree_hash->{$_}->{references} = show_interfaces_zones($_, $tree, $config, \@cfg_ifs);
$config->setLevel("firewall $tree");
$tree_hash->{$_}->{description} = $config->returnOrigValue("$_ description");
}
return $tree_hash;
}
sub show_state_policy {
my ($config) = @_;
my $outhash = {};
my $state_format = "%-15s %-8s %-8s";
my @fw_states = ('invalid', 'established', 'related');
my $fw_state_output = "";
my $fw_state_set = "false";
foreach my $state (@fw_states) {
$config->setLevel("firewall state-policy $state");
my ($action, $log_enabled) = (undef, undef);
$log_enabled = $config->existsOrig("log enable");
$action = $config->returnOrigValue("action");
if (defined $action) {
$fw_state_set = "true";
last;
}
}
if ($fw_state_set eq "true") {
foreach my $state (@fw_states) {
$config->setLevel("firewall state-policy $state");
my ($action, $log_enabled) = (undef, undef);
$log_enabled = $config->existsOrig("log enable");
$action = $config->returnOrigValue("action");
if (defined $action) {
$outhash->{$state}={ 'action' => $action, 'log' => defined($log_enabled) ? 'enabled' : 'disabled' };
}
}
}
return $outhash;
}
# Print all rule sets in all four trees
sub get_firewall_summary {
my $config = new Vyatta::Config;
my $hash = {};
foreach my $tree (reverse(sort(keys %description_hash))) {
$hash->{$tree} = show_tree($tree, $config);
$hash->{global} = show_state_policy($config);
}
return $hash;
}
sub get_group_summary{
my @lines = `ipset -L`;
my $sets = {};
foreach my $line (@lines) {
if ($line =~ /^Name:\s+(\S+)$/ ) {
my $set = $1;
my $group = new Vyatta::IpTables::IpSet($set);
next if ! $group->exists();
my $desc = $group->get_description();
$desc = '' if ! defined($desc);
my @fw_refs = $group->get_firewall_references();
push @fw_refs, 'none' if scalar(@fw_refs) == 0;
my $type = $group->get_type();
$sets->{$type}->{$set} = {
'description' => $desc,
'references' => \@fw_refs
};
}
}
return $sets;
}
|
