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#!/usr/bin/perl -w
#
# Module: vyatta-wanloadbalance.pl
#
# **** 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) 2008 Vyatta, Inc.
# All Rights Reserved.
#
# Author: Michael Larson
# Date: January 2008
# Description: Writes exclusion list for linkstatus
#
# **** End License ****
#
use lib "/opt/vyatta/share/perl5/";
use VyattaConfig;
use VyattaMisc;
use warnings;
use strict;
use POSIX;
use File::Copy;
sub write_health {
#open conf
my $config = new VyattaConfig;
$config->setLevel("load-balancing wan interface-health");
my @eths = $config->listNodes();
print FILE_LCK "health {\n";
foreach my $ethNode (@eths) {
print FILE_LCK "\tinterface " . $ethNode . " {\n";
my $option = $config->returnValue("$ethNode failure-count");
if (defined $option) {
print FILE_LCK "\t\tfailure-ct " . $option . "\n";
}
$option = $config->returnValue("$ethNode ping");
if (defined $option) {
print FILE_LCK "\t\ttarget " . $option . "\n";
}
$option = $config->returnValue("$ethNode resp-time");
if (defined $option) {
print FILE_LCK "\t\tping-resp " . $option . "\n";
}
$option = $config->returnValue("$ethNode success-count");
if (defined $option) {
print FILE_LCK "\t\tsuccess-ct " . $option . "\n";
}
print FILE_LCK "\t}\n";
}
print FILE_LCK "}\n\n";
}
sub write_rules {
my $config = new VyattaConfig;
$config->setLevel("load-balancing wan rule");
my @rules = $config->listNodes();
#destination
foreach my $rule (@rules) {
print FILE_LCK "rule " . $rule . " {\n";
my $option = $config->returnValue("$rule protocol");
if (defined $option) {
print FILE_LCK "\tprotocol " . $option . "\n"
}
#destination
print FILE_LCK "\tdestination {\n";
$option = $config->returnValue("$rule destination address");
if (defined $option) {
print FILE_LCK "\t\taddress " . $option . "\n";
}
$option = $config->returnValue("$rule destination network");
if (defined $option) {
print FILE_LCK "\t\tnetwork " . $option . "\n";
}
$config->setLevel("load-balancing wan rule $rule destination port-number");
my @dport_nums = $config->listNodes();
foreach my $dport_num (@dport_nums) {
print FILE_LCK "\t\tport-number " . $dport_num . "\n";
}
$config->setLevel("load-balancing wan rule $rule destination port-name");
my @dport_names = $config->listNodes();
foreach my $dport_name (@dport_names) {
print FILE_LCK "\t\tport-number " . $dport_name . "\n";
}
print FILE_LCK "\t}\n";
#source
print FILE_LCK "\tsource {\n";
$option = $config->returnValue("$rule source address");
if (defined $option) {
print FILE_LCK "\t\taddress " . $option . "\n";
}
$option = $config->returnValue("$rule source network");
if (defined $option) {
print FILE_LCK "\t\tnetwork " . $option . "\n";
}
$config->setLevel("load-balancing wan rule $rule source port-number");
my @sport_nums = $config->listNodes();
foreach my $sport_num (@sport_nums) {
print FILE_LCK "\t\tport-number " . $sport_num . "\n";
}
$config->setLevel("load-balancing wan rule $rule source port-name");
my @sport_names = $config->listNodes();
foreach my $sport_name (@sport_names) {
print FILE_LCK "\t\tport-number " . $sport_name . "\n";
}
print FILE_LCK "\t}\n";
#interface
$config->setLevel("load-balancing wan rule $rule interface");
my @eths = $config->listNodes();
foreach my $ethNode (@eths) {
print FILE_LCK "\tinterface " . $ethNode . " {\n";
$option = $config->returnValue("$ethNode weight");
if (defined $option) {
print FILE_LCK "\t\tweight " . $option . "\n";
}
print FILE_LCK "\t}\n";
}
print FILE_LCK "}\n";
}
}
####main
my $conf_file = '/var/load-balance/wlb.conf';
my $conf_lck_file = '/var/load-balance/wlb.conf.lck';
#open file
open FILE, "<$conf_file";
open FILE_LCK, "+>$conf_lck_file";
write_health();
write_rules();
close FILE;
close FILE_LCK;
copy ($conf_lck_file,$conf_file);
unlink($conf_lck_file);
#finally kick the process
#system "/etc/init.d/vyatta-wanloadbalance restart";
exit 0;
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