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#!/usr/bin/perl -w
#
# Module: vyatta-linkstatus.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: Michael Larson
# Date: January 2008
# Description: Writes exclusion list for linkstatus
#
# **** End License ****
#
use warnings;
use strict;
use POSIX;
use File::Copy;
my $exclude_file = '/var/linkstatus/exclude';
my $exclude_lck_file = '/var/linkstatus/exclude.lck';
my $action = 0;
my $iface;
foreach my $arg (@ARGV) {
if (substr($arg, 0, 5) eq "--add") {
$action = 0;
next;
}
elsif (substr($arg, 0, 5) eq "--del") {
$action = 1;
next;
}
else {
#must be interface then...
$iface = $arg;
}
}
open FILE, "<$exclude_file";
open FILE_LCK, "+>$exclude_lck_file";
my $newline = "";
my @excl;
while (<FILE>) {
@excl = split ',', $_;
foreach my $elem (@excl)
{
if ($elem ne $iface) {
if ($newline ne '') {
$newline = "$newline,$elem";
}
else {
$newline = $elem;
}
}
}
}
close FILE;
#if add new now add to end of list
if ($action==0) {
if ($newline ne '') {
$newline = "$newline,$iface";
}
else {
$newline = $iface;
}
}
print FILE_LCK "$newline";
close FILE_LCK;
copy ($exclude_lck_file,$exclude_file);
unlink($exclude_lck_file);
#finally kick the process
if (open(PID, "< /var/run/vyatta/quagga/watchlink.pid")) {
my $foo = <PID>;
system "kill -10 $foo";
close(PID);
}
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