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# ZCTEST 1.0
# $Id: loopback.rb,v 1.19 2010/06/07 08:51:25 chabannf Exp $
#
# CONTACT : zonecheck@nic.fr
# AUTHOR : Stephane D'Alu <sdalu@nic.fr>
#
# CREATED : 2002/09/11 11:20:17
# REVISION : $Revision: 1.19 $
# DATE : $Date: 2010/06/07 08:51:25 $
#
# CONTRIBUTORS: (see also CREDITS file)
#
#
# LICENSE : GPL v3
# COPYRIGHT : AFNIC (c) 2003
#
# This file is part of ZoneCheck.
#
# ZoneCheck is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# ZoneCheck 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.
#
# You should have received a copy of the GNU General Public License
# along with ZoneCheck; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
require 'framework'
module CheckNetworkAddress
##
## Check for loopback network delegation/resolution
##
class Loopback < Test
with_msgcat 'test/loopback.%s'
#-- Constants -----------------------------------------------
IPv4LoopbackName = Dnsruby::IPv4::create("127.0.0.1").to_name
IPv6LoopbackName = Dnsruby::IPv6::create("::1").to_name
#-- Helper --------------------------------------------------
def ipv4_delegated?(ip)
(!soa(ip, Dnsruby::Name::create(IPv4LoopbackName.labels[1..-1])).nil? ||
!soa(ip, Dnsruby::Name::create(IPv4LoopbackName.labels[2..-1])).nil? ||
!soa(ip, Dnsruby::Name::create(IPv4LoopbackName.labels[3..-1])).nil? )
end
def ipv6_delegated?(ip)
!soa(ip, Dnsruby::Name::create(IPv6LoopbackName.labels[1..-1])).nil?
end
#-- Checks --------------------------------------------------
# DESC: loopback network should be delegated
def chk_loopback_delegation(ns, ip)
case ip
when Dnsruby::IPv4 then return ipv4_delegated?(ip)
when Dnsruby::IPv6 then return ipv4_delegated?(ip) && ipv6_delegated?(ip)
end
false
end
# DESC: loopback host reverse should exists
def chk_loopback_host(ns, ip)
case ip
when Dnsruby::IPv4 then return !ptr(ip, IPv4LoopbackName).empty?
when Dnsruby::IPv6 then return !ptr(ip, IPv4LoopbackName).empty? &&
!ptr(ip, IPv6LoopbackName).empty?
end
false
end
end
end
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