#!/usr/bin/perl
#
# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 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
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# 
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
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# 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
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#    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
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#    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
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# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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# $TAHI: ct-dhcpv6/dhcpv6.tahi/S_RFC3633_9_IAPD_IgnoreInValidT1T2.seq,v 1.23 2006/03/09 08:46:02 mnaoki Exp $
########################################################################
BEGIN { $V6evalTool::TestVersion = '$Name: DHCPv6_1_0 $';
}

use strict;
use V6evalTool;
use DHCPv6_common;
use Server_pktdesc;

#--------------------------------------------------------------#
# Initialization
#--------------------------------------------------------------#
dhcpExitNS if ChkFuncSupport('PD');

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}\",\"delegateprefix=3ffe:501:ffff:100::\",\"length=64\")"
);

dhcpSvrInit(\%NUT_Server_Config);
#--------------------------------------------------------------#
# Main Procedure
#--------------------------------------------------------------#
# send DHCPv6 Solicit Message
$CID_OPTION = "opt_CID_LLT_client1";
$IA_PD_OPTION = "opt_IA_PD_Invalid";
my ($ret1, %sol1) = send_solicit($IF0, "solicit_client1_to_alldhcp", "");

# wait for DHCPv6 Advertise Message
my ($ret2, %adv2) = wait_for_advertise($IF0, 5);
if (0 != $ret2){
	dhcpExitError("Can\'t received the Advertise Message");
}

# compare CID
dhcpExitFail if (0 != compare_options(\%sol1, \%adv2, ($CMP_CID|$CMP_TRANS_ID)));
# check Options
dhcpExitFail if (0 != options_exist(\%adv2, ($CMP_SID|$CMP_CID|$CMP_IA_PD)));


# send DHCPv6 Request Message (Invalid)
$SID_OPTION = "opt_SID_ANY";
$IA_PD_OPTION = "opt_IA_PD_Prefix";
my $cpp = '';
my ($ret3, %req3) = send_request($IF0, "request_client1_to_alldhcp", \%adv2, $cpp);

# wait for DHCPv6 Reply Message
my ($ret4, %rep4) = wait_for_reply($IF0, 5);
if (0 != $ret4) {
	dhcpExitError("Can\'t receive the reply message");
}

# compare CID
if (0 != compare_options(\%req3, \%rep4, ($CMP_SID|$CMP_CID|$CMP_TRANS_ID))){
	dhcpExitError("The content of option is incorrect!");
}

# check Options
if (0 != options_exist(\%rep4, ($CMP_SID|$CMP_CID|$CMP_IA_PD))){
	dhcpExitError("<B>Do not include necessary options!</B>");
}



# Because depends on the Client, so the values  (T1 & T2)  in %rep4 & %req3 should be same.
# Check if the Server ignore the T1&T2 ( %req3 & %rep4)

if (0 == CheckIfExistOP(\%rep4,$CMP_IA_PREFIX)){
	# Because the time depends on the Client, so the lifetimes  in %rep4 & %req3 are same.
	if (0 != CheckTimeOfPrefixOP(\%req3,\%rep4)){
	dhcpExitError("<B>The values of lifetimes between Require & Reply are not consitent</B>");
	}

}
else{
vLogHTML("<B>The Reply Message does not include IA_Prefix option.</B><BR>");
}

#-------------------------------------------------------------------
vLogHTML("<B><FONT COLOR=#006666>The Message exchange is correct</FONT></B><BR>");
#-------------------------------------------------------------------
dhcpExitPass();

#NOTREACHED

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

=head1 NAME

  S_RFC3633_9_IAPD_IgnoreInValidT1T2.seq - Ignore the invalid values of T1 and T2.

=head1 TARGET

  Server

=head1 SYNOPSIS

=begin html
 <PRE>
 <A HREF="./S_RFC3633_9_IAPD_IgnoreInValidT1T2.seq">S_RFC3633_9_IAPD_IgnoreInValidT1T2.seq </A>[-tooloption ...]
 -pkt <A HREF="./S_RFC3633_9_IAPD_IgnoreInValidT1T2.def">S_RFC3633_9_IAPD_IgnoreInValidT1T2.def </A>
 -tooloption: v6eval tool option
 </PRE>

=head1 INITIALIZATION

=begin html
  <UL>
  <LI><STRONG>Network Topology</STRONG></LI>
  </UL>
  <PRE>
          TN(Requesting router1)  
             |
Link0 -------+-----------+--------------- 3ffe:501:ffff:100::/64
                         |
                       NUT(Delegating router1)
  </PRE>
  <UL>
  <PRE>
      <LI><STRONG>Verification Points</STRONG></LI>
If a delegating router receives an IA_PD with T1 greater than T2, and
both T1 and T2 are greater than 0, the delegating router ignores the
invalid values of T1 and T2 and processes the IA_PD <B>as though the
delegating router had set T1 and T2 to 0.</B>
The Delegating router runs like the case "T1=0 & T2=0",
That is, the parameters is determined by the client.
<UL>Format of IA_PD option in the Reply 
<LI>option-code</LI>
<B>OPTION_IA_PD (25)</B>
<LI>option-length</LI>
12 + length of IA_PD-options field.
<LI>IAID</LI>
Same as the Request.
<LI>T1</LI>
Same as the Request.
<LI>T2</LI>
Same as the Request.
      </PRE>
      </UL>
  </UL>
  <UL>
      <LI><STRONG>Configuration</STRONG></LI>
      <UL>
      <PRE>
      Solicit Message
      <LI>IA_PD option</LI>
      T1 = 5700
      T2 = 4800
      </PRE>
      </UL>
	<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>Delegating router1</TT></TD>
	<TD><TT>NUT</TT></TD>
	<TD><TT>Link0</TT></TD>
	<TD><TT>3ffe:501:ffff:100::/64</TT></TD>
	<TD><TT>NUT's Linklocal address</TT></TD>
	<TD><TT>NUT's MAC address</TT></TD>
	</TR>
	<TR>
	<TD><TT>Requesting router1</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:a2a2</TT></TD>
	<TD><TT>00:00:00:00:a2:a2</TT></TD>
	</TABLE>
	</BLOCKQUOTE>
	</UL>
</UL>

=end html

=head1 TEST PROCEDURE

=begin html
<PRE>
       NUT     TN
        |       | 
        |       | initialize NUT (as a Delegating router)
        |       | 
        | <---- | Solicit       (w/ IA_PD option) T1>T2>0          
        | ----> | Advertise	(w/ IA_PD option)           
        | <---- | Request       (w/ IA_PD option)             
        | ----> | <B>Reply</B>	(w/ IA_PD option)             (*1)
        |       | 
</PRE>

=end html

=head1 JUDGEMENT

<PRE>
(*1)PASS: The TN & NUT exchanges above messages correctly.
           And NUT will ignore the T1, T2.
           That is, the value of fileds of IA_PD option is same as the Request message.
           or
           Return Reply message without IA_Prefix option.
</PRE>

=head1 TERMINATION

  N/A

=head1 REFERENCE

=begin html
<PRE>
   see also RFC3633
   9.  Identity Association for Prefix Delegation Option
</PRE>

=end html

=head1 SEE ALSO

  perldoc V6evalTool

=cut