#!/usr/bin/perl
#
# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005 Yokogawa Electric Corporation,
# IPA (Information-technology Promotion Agency, Japan).
# All rights reserved.
# 
# Redistribution and use of this software in source and binary forms, with 
# or without modification, are permitted provided that the following 
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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 
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# 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. However, using this software for the 
# purpose of testing or evaluating any products including merchantable 
# products may be permitted without any notification to the copyrighters.
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHTERS, THE PROJECT AND 
# CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING 
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# FOR A PARTICULAR PURPOSE, ARE DISCLAIMED.  IN NO EVENT SHALL THE 
# COPYRIGHTERS, THE PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
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# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
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# $TAHI: ct/spec/FH_Big65536.seq,v 1.20 2003/04/07 10:31:24 ozoe Exp $
#
######################################################################
BEGIN {
	$V6evalTool::TestVersion = '$Name: REL_2_1_2 $';
}

use V6evalTool;

%pktdesc = (
	echo_request		=> 'Send Echo Request (Preparation)',
	echo_reply		=> 'Recv Echo Reply',
	ns			=> 'Recv Neighbor Solicitation',
	na			=> 'Send Neighbor Advertisement',
	icmp_type4_code0	=> 'Recv ICMP Error (Parameter Problem, erroneous header field encountered)',
);

$frag_num = 46;
for ($seq = 1; $seq <= $frag_num; $seq++) {
	$pktdesc{"echo_request_" . $seq} = "Send Echo Request fragment " . $seq ;
	$pktdesc{"echo_reply_" . $seq} = "Send Echo Reply fragment " . $seq ;
}

$IF = Link0;

vCapture($IF);

#----- preparation

vLogHTML('<B>Begin Preparation</B>');

vSend($IF, echo_request);

%ret = vRecv($IF, 5, 0, 0, ns, echo_reply);
if ($ret{status} != 0) {
	vLogHTML('<FONT COLOR="#FF0000">NG</FONT>');
	exit $V6evalTool::exitFail;
}
if ($ret{recvFrame} eq 'ns') {
	vSend($IF, na);
	%ret = vRecv($IF, 5, 0, 0, echo_reply);
	if ($ret{status} != 0) {
		vLogHTML('<FONT COLOR="#FF0000">NG</FONT>');
		exit $V6evalTool::exitFail;
	}
}
if ($ret{recvFrame} ne 'echo_reply') {
	vLogHTML('<FONT COLOR="#FF0000">NG</FONT>');
	exit $V6evalTool::exitFail;
}

vSend($IF, na);

vLogHTML('<B>End Preparation</B>');

#----- main test

for ($seq = 1; $seq <= $frag_num; $seq++) {
	vSend($IF, "echo_request_$seq");
}

%ret = vRecv($IF, 5, 0, 0, icmp_type4_code0);
if ($ret{status} == 0 && $ret{recvFrame} eq 'icmp_type4_code0') {
	vLogHTML('OK');
	vSleep(65, "Discard needless 'ICMP Time Exceeded' message (60+5 sec)");
	exit $V6evalTool::exitPass;
}

vLogHTML('<FONT COLOR="#FF0000">NG</FONT>');
vSleep(65, "Discard Unexpected 'ICMP Time Exceeded' message (60+5 sec)");
exit $V6evalTool::exitFail;

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

=head1 NAME

  FH_Big65536.seq - check Fragment Reassembly (Payload Size = 65536)

=head1 TARGET

  Host and Router

=head1 SYNOPSIS

=begin html
<PRE>
  <A HREF="./FH_Big65536.seq">FH_Big65536.seq</A> [-tooloption ...] -pkt <A HREF="./FH_Big65536.def">FH_Big65536.def</A>
    -tooloption : v6eval tool option
  See also <A HREF="./FH_BigPayload.def">FH_BigPayload.def</A>
</PRE>

=end html

=head1 INITIALIZATION

  1. Ping to Target (create Neighbor Cache Entries, if not exist)
  2. Override Neighbor Cache Entries

=head1 TEST PROCEDURE

  Tester                      Target
    |                           |
    |-------------------------->| 
    |   Echo Request            |  * Last Fragment Only
    |                           |
    |                           |
    |<--------------------------|
    |   ICMP Error              |
    |                           |
    |                           |
    v                           v


  1. Send Echo Request (last fragment only)
  2. Receive ICMP Error

=head1 JUDGMENT

  PASS: ICMP Error Received.

        IPv6 Header
            Version             = 6
            Traffic Class       = 0
            FlowLabel           = 0
            PayloadLength       = 16
            NextHeader          = 58 (ICMP)
            SourceAddress       = Target Link Local Address
            Destination Address = Tester Link Local Address

        ICMP Error
            Type           = 4 (Parameter Problem)
            Code           = 2 (erroneous header field encountered)
            Checksum       = (auto)
            Pointer        = 42 (Offset to Fragment Offset field)
            PayloadData    = (Echo Request)

=head1 SEE ALSO

  perldoc V6evalTool

=cut