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
|
#!/usr/bin/perl
#
# Module: vyatta-op-dynamic-dns.pl
#
# **** License ****
# 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.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# This code was originally developed by Vyatta, Inc.
# Portions created by Vyatta are Copyright (C) 2008 Vyatta, Inc.
# All Rights Reserved.
#
# Author: Mohit Mehta
# Date: September 2008
# Description: Script to execute op-mode commands for Dynamic DNS
#
# **** End License ****
#
use lib "/opt/vyatta/share/perl5/";
use Getopt::Long;
use Vyatta::Config;
use strict;
use warnings;
sub print_ddns_stats {
my $ddclient_cache_dir = '/var/cache/ddclient';
my @ddns_interfaces = get_ddns_interfaces();
if (@ddns_interfaces > 0){
foreach my $configuredinterface (@ddns_interfaces) {
my $no_interface = `ip addr show dev $configuredinterface 2>/dev/null`;
my $no_ip = `ip addr show dev $configuredinterface 2>/dev/null | grep "inet "`;
my @all_cached_entries = `grep "^atime" $ddclient_cache_dir/ddclient_$configuredinterface.cache 2>/dev/null`;
if (@all_cached_entries > 0) {
foreach my $each_entry (@all_cached_entries) {
print "interface : $configuredinterface";
if ($no_interface eq ""){
print " [ Interface does not exist ]";
} elsif ($no_ip eq ""){
print " [ Currently no IP address ]";
}
print "\n";
my @split_on_ip = split(/ip=/, $each_entry);
if (@split_on_ip > 1){
my @ip = split(/,/, $split_on_ip[1]);
print "ip address : $ip[0]\n";
}
my @split_on_host = split(/host=/, $each_entry);
my @host = split(/,/, $split_on_host[1]);
print "host-name : $host[0]\n";
my @split_on_atime = split(/atime=/, $each_entry);
my @atime = split(/,/, $split_on_atime[1]);
my $prettytime = scalar(localtime($atime[0]));
print "last update : $prettytime\n";
my @split_on_status = split(/status=/, $each_entry);
my @status = split(/,/, $split_on_status[1]);
print "update-status: $status[0]\n";
print "\n";
}
} else {
print "interface : $configuredinterface";
if ($no_interface eq ""){
print " [ Interface does not exist ]";
} elsif ($no_ip eq ""){
print " [ Currently no IP address ]";
} else {
print " \n[ Status will be updated within 60 seconds ]";
}
print "\n\n";
}
}
} else {
print "Dynamic DNS not configured\n";
}
print "\n";
}
sub get_ddns_interfaces {
my $vyatta_config = new Vyatta::Config;
$vyatta_config->setLevel("service dns dynamic");
$vyatta_config->{_active_dir_base} = "/opt/vyatta/config/active/";
my @ddns_interfaces = $vyatta_config->listOrigNodes("interface");
@ddns_interfaces = sort(@ddns_interfaces);
return (@ddns_interfaces);
}
#
# main
#
my ($show_status, $update_ddns, $interface, $show_interfaces);
GetOptions("show-status!" => \$show_status,
"update-ddns!" => \$update_ddns,
"interface=s" => \$interface,
"show-interfaces!" => \$show_interfaces);
if (defined $show_status) {
print_ddns_stats;
}
if (defined $update_ddns && defined $interface) {
my @ddns_interfaces = get_ddns_interfaces();
my $interface_configured = 0;
foreach my $ddns_interface (@ddns_interfaces) {
if ($ddns_interface eq $interface) {
$interface_configured = 1;
}
}
if ($interface_configured == 1) {
system("sudo /opt/vyatta/sbin/vyatta-dynamic-dns.pl --op-mode-update-dynamicdns --interface $interface");
} else {
print "$interface has not been configured to send Dynamic DNS updates\n";
}
}
if (defined $show_interfaces) {
my @ddns_interfaces = get_ddns_interfaces();
print "@ddns_interfaces\n";
}
exit 0;
# end of file
|
