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#
# Module: VyattaMisc.pm
#
# **** License ****
# Version: VPL 1.0
#
# The contents of this file are subject to the Vyatta Public License
# Version 1.0 ("License"); you may not use this file except in
# compliance with the License. You may obtain a copy of the License at
# http://www.vyatta.com/vpl
#
# Software distributed under the License is distributed on an "AS IS"
# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
# the License for the specific language governing rights and limitations
# under the License.
#
# This code was originally developed by Vyatta, Inc.
# Portions created by Vyatta are Copyright (C) 2005, 2006, 2007 Vyatta, Inc.
# All Rights Reserved.
#
# Author: Marat
# Date: 2007
# Description:
#
# **** End License ****
#
package VyattaMisc;
require Exporter;
@ISA = qw(Exporter);
@EXPORT = qw(getNetAddIP isIpAddress);
@EXPORT_OK = qw(getNetAddIP isIpAddress);
use strict;
use VyattaConfig;
sub getNetAddrIP {
my ($interface);
($interface) = @_;
if ($interface eq '') {
print STDERR "Error: No interface specified.\n";
return undef;
}
my $ifconfig_out = `ifconfig $interface`;
$ifconfig_out =~ /inet addr:(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})/;
my $ip = $1;
if ($ip eq '') {
print STDERR "Error: Unable to determine IP address for interface \'$interface\'.\n";
return undef;
}
$ifconfig_out =~ /Mask:(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})/;
my $netmask = $1;
if ($netmask eq '') {
print STDERR "Error: Unable to determine netmask for interface \'$interface\'.\n";
return undef;
}
use NetAddr::IP; # This library is available via libnetaddr-ip-perl.deb
my $naip = new NetAddr::IP($ip, $netmask);
return $naip;
}
sub isIpAddress {
my $ip = shift;
$_ = $ip;
if ( ! /^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/) {
return 0;
}
else {
my @ips = split /\./, $ip;
my $octet = 0;
my $counter = 0;
foreach $octet (@ips) {
if (($octet < 0) || ($octet > 255)) { return 0; }
if (($counter == 0) && ($octet < 1)) { return 0; }
$counter++;
}
}
return 1;
}
sub isClusterIP {
my ($vc, $ip) = @_;
if (!(defined($ip))) {
return 0;
}
my @cluster_groups = $vc->listNodes('cluster group');
foreach my $cluster_group (@cluster_groups) {
my @services = $vc->returnValues("cluster group $cluster_group service");
foreach my $service (@services) {
if ($ip eq $service) {
return 1;
}
}
}
return 0;
}
sub remove_ip_prefix {
my @addr_nets = @_;
s/\/\d+$// for @addr_nets;
return @addr_nets;
}
sub is_ip_in_list {
my ($ip, @list) = @_;
if (!defined($ip) || scalar(@list) == 0) {
return 0;
}
@list = remove_ip_prefix(@list);
my %list_hash = map { $_ => 1 } @list;
if (defined($list_hash{$ip})) {
return 1;
} else {
return 0;
}
}
sub get_eth_ip_addrs {
my ($vc, $eth_path) = @_;
my @addrs = ();
my @virt_addrs = ();
$vc->setLevel("interfaces ethernet $eth_path");
@addrs = $vc->returnValues("address");
#
# check for VIPs
#
$vc->setLevel("interfaces ethernet $eth_path vrrp vrrp-group");
my @vrrp_groups = $vc->listNodes();
foreach my $group (@vrrp_groups) {
$vc->setLevel("interfaces ethernet $eth_path vrrp vrrp-group $group");
@virt_addrs = $vc->returnValues("virtual-address");
}
return (@addrs, @virt_addrs);
}
sub get_tun_ip_addrs {
my ($vc, $tun_path) = @_;
my @addrs = ();
my @virt_addrs = ();
$vc->setLevel("interfaces tunnel $tun_path");
@addrs = $vc->returnValues("address");
#
# check for VIPs
#
$vc->setLevel("interfaces tunnel $tun_path vrrp vrrp-group");
my @vrrp_groups = $vc->listNodes();
foreach my $group (@vrrp_groups) {
$vc->setLevel("interfaces tunnel $tun_path vrrp vrrp-group $group");
@virt_addrs = $vc->returnValues("virtual-address");
}
return (@addrs, @virt_addrs);
}
sub get_serial_ip_addrs {
#
# Todo when serial is added
#
}
sub isIPinInterfaces {
my ($vc, $ip_addr, @interfaces) = @_;
if (!(defined($ip_addr))) {
return 0;
}
foreach my $intf (@interfaces) {
# regular ethernet
if ($intf =~ m/^eth\d+$/) {
my @addresses = get_eth_ip_addrs($vc, $intf);
if (is_ip_in_list($ip_addr, @addresses)) {
return 1;
}
}
# ethernet vlan
if ($intf =~ m/^eth(\d+).(\d+)$/) {
my $eth = "eth$1";
my $vif = $2;
my @addresses = get_eth_ip_addrs($vc, "$eth vif $vif");
if (is_ip_in_list($ip_addr, @addresses)) {
return 1;
}
}
# tunnel
if ($intf =~ m/^tun\d+$/) {
my @addresses = get_tun_ip_addrs($vc, $intf);
if (is_ip_in_list($ip_addr, @addresses)) {
return 1;
}
}
# serial
if ($intf =~ m/^wan(\d+).(\d+)$/) {
my @addresses = get_serial_ip_addrs($vc, $intf);
if (is_ip_in_list($ip_addr, @addresses)) {
return 1;
}
}
}
return 0;
}
sub isClusteringEnabled {
my ($vc) = @_;
if ($vc->exists('cluster')) {
return 1;
} else {
return 0;
}
}
return 1;
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