#!/usr/bin/perl
#
# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
# 	Yokogawa Electric Corporation.
# All rights reserved.
# 
# Redistribution and use of this software in source and binary
# forms, with or without modification, are permitted provided that
# the following conditions and disclaimer are agreed and accepted
# by the user:
# 
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in
#    the documentation and/or other materials provided with
#    the distribution.
# 
# 3. Neither the names of the copyrighters, the name of the project
#    which is related to this software (hereinafter referred to as
#    "project") nor the names of the contributors may be used to
#    endorse or promote products derived from this software without
#    specific prior written permission.
# 
# 4. No merchantable use may be permitted without prior written
#    notification to the copyrighters.
# 
# 5. The copyrighters, the project and the contributors may prohibit
#    the use of this software at any time.
# 
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHTERS, THE PROJECT AND
# CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING
# BUT NOT LIMITED THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE, ARE DISCLAIMED.  IN NO EVENT SHALL THE
# COPYRIGHTERS, THE PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
# $TAHI: dhcpv6.p2/rfc3736/S_RFC3736_Creation-Transmission_RelayReply.seq,v 1.1 2007/02/20 11:55:45 hide Exp $
########################################################################
BEGIN { $V6evalTool::TestVersion = '$Name: DHCPv6_Self_Test_P2_1_0_14 $';
}

use strict;
use V6evalTool;

use lib '../.';
use DHCPv6_common;
use Server_pktdesc;

dhcpExitNS if ChkFuncSupport('STATELESSDHCP');

#--------------------------------------------------------------#
# Initialization
#--------------------------------------------------------------#

vLogHTML('<B>==== NUT Initialization ====</B><BR>');
my $IF0 = "Link0";
#initial NUT config parameters,
my %NUT_Server_Config = (
	'if_nut0'=> "$V6evalTool::NutDef{Link0_device}",
	'init_opcode' => "vRemote(\"dhcp6s.rmt\", \"start\",\"link0=$V6evalTool::NutDef{Link0_device}\",\"stateless\",\"dns=3ffe:501:ffff:100:200:ff:fe00:3f3e\",\"valduid=$DUID_CLIENT\")"
);

dhcpSvrInitS(\%NUT_Server_Config);
vClear($IF0);
#--------------------------------------------------------------#
# Main Procedure
#--------------------------------------------------------------#
vLogHTML('<B>==== Creation and Transmission of Relay Reply Messages #1  ====</B><BR>');


# set Options
$CID_OPTION = "opt_CID_LLT_client1";
$OptionRequest_OPTION = "opt_ORO_dns_servers";
$ElapsedTime_OPTION = "opt_ElapsedTime";
# send DHCPv6 Relay Forward Message(Solicit)
my($ret1, %rfsol1) = send_relay_forward($IF0, "relayforward_infomationrequest_client1_to_alldhcp_send");
 if (0 != $ret1){
 	dhcpExitFail();
 }

# wait for DHCPv6 Relay Reply Message(reply)
my ($ret2, %rrrep2) =  wait_for_relay_reply_reply($IF0, 5);
if (0 != $ret2){
	dhcpExitFail();
}


# check unicast address
if ( $rrrep2{"Frame_Ether.Packet_IPv6.Hdr_IPv6.DestinationAddress"} != $rfsol1{"Frame_Ether.Packet_IPv6.Hdr_IPv6.SourceAddress"}) {
        dhcpExitError("DHCPv6 Server not send Reply message via unicast.");
}else{
	vLogHTML("<B> Destination address is $rrrep2{\"Frame_Ether.Packet_IPv6.Hdr_IPv6.DestinationAddress\"} <B><BR>");
}

my $strIndexBase = "Frame_Ether.Packet_IPv6.Upp_UDP";

if ($rfsol1{"$strIndexBase.Udp_DHCPv6_RelayForward.HopCount"} !=
    $rrrep2{"$strIndexBase.Udp_DHCPv6_RelayReply.HopCount"}){
	dhcpExitError("The HopCount isn\'t same between Relay Forward Msg & Relay Reply Msg<BR>");
}else{
	my $msg = "<b><font color='blue'>HopCount matched.</font></b>:";
	$msg .= $rfsol1{"$strIndexBase.Udp_DHCPv6_RelayForward.HopCount"};
	$msg .= " == ";
	$msg .= $rrrep2{"$strIndexBase.Udp_DHCPv6_RelayReply.HopCount"};
	$msg .= "<br>";
	vLogHTML($msg);
}

if ($rfsol1{"$strIndexBase.Udp_DHCPv6_RelayForward.LinkAddr"} !=
    $rrrep2{"$strIndexBase.Udp_DHCPv6_RelayReply.LinkAddr"}){
	dhcpExitError("The LinkAddr isn\'t same between Relay Forward Msg & Relay Reply Msg<BR>");
}else{
	my $msg = "<b><font color='blue'>LinkAddr matched.</font></b>:";
	$msg .= $rfsol1{"$strIndexBase.Udp_DHCPv6_RelayForward.LinkAddr"};
	$msg .= " == ";
	$msg .= $rrrep2{"$strIndexBase.Udp_DHCPv6_RelayReply.LinkAddr"};
	$msg .= "<br>";
	vLogHTML($msg);
}

if ($rfsol1{"$strIndexBase.Udp_DHCPv6_RelayForward.PeerAddr"} !=
    $rrrep2{"$strIndexBase.Udp_DHCPv6_RelayReply.PeerAddr"}){
	dhcpExitError("The PeerAddr isn\'t same between Relay Forward Msg & Relay Reply Msg<BR>");
}else{
	my $msg = "<b><font color='blue'>PeerAddr matched.</font></b>:";
	$msg .= $rfsol1{"$strIndexBase.Udp_DHCPv6_RelayForward.PeerAddr"};
	$msg .= " == ";
	$msg .= $rrrep2{"$strIndexBase.Udp_DHCPv6_RelayReply.PeerAddr"};
	$msg .= "<br>";
	vLogHTML($msg);
}
# check options in reply Message
dhcpExitFail() if (0 != options_exist(\%rrrep2, ($CMP_RELAYMSG)));

#check for contents in Relay message option
my $option_base = "Frame_Ether.Packet_IPv6.Upp_UDP.Udp_DHCPv6_RelayReply.Opt_DHCPv6_RelayMessage";

my $option_code = $option_base."."."Code";
my $option_len = $option_base."."."Length";
my $option_message_type = $option_base."."."Udp_DHCPv6_Reply";

if(defined $rrrep2{$option_base}){
        vLogHTML("<B> Relay Message option Code = $rrrep2{$option_code} <B><BR>");
        vLogHTML("<B> Relay Message option Length = $rrrep2{$option_len} <B><BR>");
	vLogHTML("<B> Relay Message option DHCP-relqy-message  = $rrrep2{$option_message_type} <B><BR>");
}

# check options in Advertise Message
my $option_base = "Frame_Ether.Packet_IPv6.Upp_UDP.Udp_DHCPv6_RelayReply.Opt_DHCPv6_RelayMessage.Udp_DHCPv6_Reply";

my $option_CID = $option_base."."."Opt_DHCPv6_CID";
my $option_SID = $option_base."."."Opt_DHCPv6_SID";
my $option_DNS = $option_base."."."Opt_DHCPv6_DNS_Servers";

if(defined $rrrep2{$option_base}){
	if(defined($rrrep2{$option_CID})){
		vLogHTML("<B> CID = $rrrep2{$option_CID} <B><BR>");
	}else{
		dhcpExitError("No CID<BR>");
	}
	if(defined($rrrep2{$option_SID})){
		vLogHTML("<B> SID = $rrrep2{$option_SID} <B><BR>");
	}else{
		dhcpExitError("No SID<BR>");
	}
	if(defined($rrrep2{$option_DNS})){
		vLogHTML("<B> DNS  = $rrrep2{$option_DNS} <B><BR>");
	}else{
		dhcpExitError("No DNS Recursive Name option<BR>");
	}
}
# compare CID
dhcpExitFail() if ($rrrep2{$option_CID} !=  $rfsol1{"Frame_Ether.Packet_IPv6.Upp_UDP.Udp_DHCPv6_RelayReply.Opt_DHCPv6_RelayMessage.Udp_DHCPv6_InformationRequest.Opt_DHCPv6_CID"});
#-------------------------------------------------------------------
vLogHTML("<B><FONT COLOR=#006666>Relay-Reply message transmission is correct</FONT></B><BR>");
#-------------------------------------------------------------------

vClear($IF0);
vStop($IF0);
dhcpExitPass();
#NOTREACHED

########################################################################
__END__

=head1 NAME

  S_RFC3736_Creation-Transmission_RelayReply.seq - Relay-Reply message transmission

=head1 TARGET

  Server

=head1 SYNOPSIS

=begin html
 <PRE>
 <A HREF="./S_RFC3736_Creation-Transmission_RelayReply.seq">S_RFC3736_Creation-Transmission_RelayReply.seq </A>[-tooloption ...]
 -pkt <A HREF="./S_RFC3736_Creation-Transmission_RelayReply.def">S_RFC3736_Creation-Transmission_RelayReply.def </A>
 -tooloption: v6eval tool option
See Also <A HREF="../DHCPv6.def"> DHCPv6.def </A>
 </PRE>

=head1 INITIALIZATION

=begin html
  <UL>
  <LI><STRONG>Network Topology</STRONG></LI>
  </UL>
  <PRE>
                TN(Client1)
                   |
Link0 ---------------------+-------------- 3ffe:501:ffff:100::/64
                           |
                         TN(Relay1)
                           |
Link1 ---------------------+---------+--- 3ffe:501:ffff:101::/64
                                     |
                                 NUT(Server1)
  </PRE>
  <UL>
      <LI><STRONG>Verification Points</STRONG></LI>
          <UL>
          <PRE>
Destination address set to TN's unicast address same as the Information-request message's source adderess<BR><BR>
Relay-reply Message Format
      <LI>msg-type</LI>
          <B>RELAY-REPL(13)</B>
      <LI>hop-count</LI>
          <B>Copied from the Relay-forward message</B>
      <LI>link-address</LI>
          <B>Copied from the Relay-forward message</B>
      <LI>peer-address</LI>
          <B>Copied from the Relay-forward message</B>
      <LI>options</LI>
          <B>Relay Message option</B>

    <UL>
			<LI>option-code</LI>
			<B>OPTION_RELAY_MSG (9)</B>
			<LI>option-len</LI>
			<B>Length of DHCP-relay-message</B>
			<LI>DHCP-relay-message</LI>
	<b>Reply Message</b>
        <ul>
	<LI>msg-type</LI>
	<B>REPLY(7)</B>
	<LI>transaction-id</LI>
        Same as the Relay-forward message
	<LI>Server Identifier option</LI>
	Any
	<LI>Client Identifier option</LI>
	Same as the Relay-forward message
	<LI>DNS Recursive Name Server option</LI>
		</UL>
          </PRE>
          </UL>
  </UL>
  <UL>
      <LI><STRONG>Configuration</STRONG></LI>
	<BLOCKQUOTE>
	<TABLE BORDER>
	<TR>
	<TD><TT>Device Name</TT></TD>
	<TD><TT>Device Type</TT></TD>
	<TD><TT>I/F</TT></TD>
	<TD><TT>Assigned Prefix</TT></TD>
	<TD><TT>Link Local Addr</TT></TD>
	<TD><TT>MAC Addr</TT></TD>
	</TR>
	<TR>
	<TD><TT>Server1</TT></TD>
	<TD><TT>NUT</TT></TD>
	<TD><TT>Link1</TT></TD>
	<TD><TT>3ffe:501:ffff:101::/64</TT></TD>
	<TD><TT>NUT's Linklocal address</TT></TD>
	<TD><TT>NUT's MAC address</TT></TD>
	</TR>
	<TR>
	<TD><TT>Relay1(Link1)</TT></TD>
	<TD><TT>TN</TT></TD>
	<TD><TT>Link1</TT></TD>
	<TD><TT>3ffe:501:ffff:101::/64</TT></TD>
	<TD><TT>fe80::200:ff:fe00:a2a2</TT></TD>
	<TD><TT>00:00:00:00:a2:a2</TT></TD>
	</TR>
	<TR>
	<TD><TT>Relay1(Link0)</TT></TD>
	<TD><TT>TN</TT></TD>
	<TD><TT>Link0</TT></TD>
	<TD><TT>3ffe:501:ffff:100::/64</TT></TD>
	<TD><TT>fe80::200:ff:fe00:a3a3</TT></TD>
	<TD><TT>00:00:00:00:a3:a3</TT></TD>
	</TR>
	<TR>
	<TD><TT>Client1</TT></TD>
	<TD><TT>TN</TT></TD>
	<TD><TT>Link0</TT></TD>
	<TD><TT>3ffe:501:ffff:100::/64</TT></TD>
	<TD><TT>fe80::200:ff:fe00:a4a4</TT></TD>
	<TD><TT>00:00:00:00:a4:a4</TT></TD>
	</TR>
	</TABLE>
	</BLOCKQUOTE>
  </UL>

=end html

=head1 TEST PROCEDURE

=begin html
<PRE>
       NUT     TN(Relay1)  TN(Client1)
        |       |           |
        |       |           |     initialize NUT (as a stateless DHCPv6 Server)
        |       | <----     |     Information-request 
        | <---- |           |     Relay-forward (Information-request)
        | ----> |           |     Relay-reply (Reply)  (*1)
        |       |           |    
</PRE>

=end html

=head1 JUDGEMENT

<PRE>
(*1)PASS:  The server returns the relay-reply message that is same as the description of verification points.
</PRE>

=head1 TERMINATION

  N/A

=head1 REFERENCE

=begin html
<PRE>
   See also RFC3315 
   20.3

   See also RFC3646 
   3 and 4

   see also RFC3736
   5.1. 5.2 adn 5.3
</PRE>

=end html

=head1 SEE ALSO

  perldoc V6evalTool

=cut