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#
# Module: Vyatta::VPNUtil.pm
#
# **** 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) 2005, 2006, 2007 Vyatta, Inc.
# All Rights Reserved.
#
# Author: Marat
# Date: 2007
# Description:
#
# **** End License ****
#
package Vyatta::VPNUtil;
our @EXPORT = qw(rsa_get_local_key_file LOCAL_KEY_FILE_DEFAULT rsa_get_local_pubkey
is_vpn_running vpn_debug enableICMP);
use base qw(Exporter);
use strict;
use warnings;
use VyattaConfig;
use constant LOCAL_KEY_FILE_DEFAULT
=> '/opt/vyatta/etc/config/ipsec.d/rsa-keys/localhost.key';
sub is_vpn_running {
return ( -e '/var/run/pluto/pluto.ctl');
}
sub rsa_get_local_key_file {
my $file = LOCAL_KEY_FILE_DEFAULT;
#
# Read configuration tree
#
my $vc = new VyattaConfig();
$vc->setLevel('vpn');
my $key_file_override = $vc->returnOrigValue('rsa-keys local-key file');
#
# We'll assume validation for valid path/file was handled in the
# commit.
#
$file = $key_file_override if defined($key_file_override);
return $file
}
sub rsa_get_local_pubkey {
my ($file) = @_;
unless ( -r $file) {
return 0;
}
open(DAT, $file) || die("Could not open file $file!");
my @raw_data=<DAT>;
close(DAT);
foreach my $line (@raw_data) {
my $file_pubkey;
if (($file_pubkey) = ($line =~ m/\s+\#pubkey=(\S+)/)) {
return $file_pubkey;
}
}
return 0;
}
sub vpn_debug {
use POSIX;
my $timestamp = strftime("%Y%m%d-%H:%M.%S", localtime);
open LOG, ">>", "/var/log/vpn-debug.log";
print LOG "$timestamp: ", @_ , "\n";
close LOG;
}
sub vpn_log {
my ($msg) = @_;
open LOG, ">> /tmp/ipsec.log";
use POSIX;
my $timestamp = strftime("%Y-%m-%d %H:%M.%S", localtime);
print LOG "$timestamp\nLog: $msg\n";
close LOG;
}
sub vpn_system {
my ($cmdline) = @_;
vpn_debug("START $cmdline");
my $ret = system($cmdline);
if ($ret) {
vpn_debug("END ERROR $cmdline");
} else {
vpn_debug("END OK $cmdline");
}
}
sub enableICMP {
my ($enable) = @_;
opendir DIR, '/proc/sys/net/ipv4/conf/' or return undef;
my @nodes = grep !/^\./, readdir DIR;
closedir DIR;
foreach my $node (@nodes) {
my $OUT;
open OUT, ">/proc/sys/net/ipv4/conf/$node/accept_redirects" or return undef;
print OUT $enable;
close OUT;
open OUT, ">/proc/sys/net/ipv4/conf/$node/send_redirects" or return undef;
print OUT $enable;
close OUT;
}
return 1;
}
1;
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