#!/usr/bin/perl
#
# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005 Yokogawa Electric Corporation,
# IPA (Information-technology Promotion Agency, Japan).
# All rights reserved.
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# 1. Redistributions of source code must retain the above copyright 
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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 
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# 4. No merchantable use may be permitted without prior written 
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# purpose of testing or evaluating any products including merchantable 
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHTERS, THE PROJECT AND 
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# $TAHI: ct/spec/PL_OddToHost.seq,v 1.9 2003/04/23 10:50:04 ozoe Exp $
#
######################################################################
BEGIN {
	$V6evalTool::TestVersion = '$Name: REL_2_1_2 $';
}

use V6evalTool;

%pktdesc = (
	echo_request	=> 'Send Echo Request (Odd Payload Length)',
	echo_reply	=> 'Recv Echo Reply (Odd Payload Length)',
	ns		=> 'Recv Neighbor Solicitation',
	na		=> 'Send Neighbor Advertisement',
);

$IF = Link0;

vCapture($IF);

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;
}

vLogHTML('OK');
exit $V6evalTool::exitPass;

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

=head1 NAME

  PL_OddToHost - check IPv6 Header Payload Length is Odd

=head1 TARGET

  Host and Router

=head1 SYNOPSIS

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

=end html

=head1 INITIALIZATION

  None

=head1 TEST PROCEDURE

  Tester                      Target
    |                           |
    |-------------------------->|
    |   Echo Request            |
    |                           |
    |                           |
    |<--------------------------|
    |   Neighbor Solicitation   |
    |                           |
    |                           |
    |-------------------------->|
    |   Neighbor Advertisement  |
    |                           |
    |                           | 
    |<--------------------------|
    |   Echo Reply              |
    |                           |
    |                           |
    v                           v


  1. Send Echo Request
  2. Wait Echo Reply or NS
  3. If NS received then send NA, and wait Echo Reply again
  4. Receive Echo Reply

  Echo Request Data is:

        IPv6 Header
            Version            = 6
            Traffic Class      = 0
            FlowLabel          = 0
            PayloadLength      = 15
            NextHeader         = 58 (ICMP)
            SourceAddress      = Tester Link Local Address
            DestinationAddress = Target Link Local Address

        ICMP Echo Request
            Type           = 128 (Echo Request)
            Code           = 0
            Checksum       = (auto)
            Identifier     = 0xffff
            SequenceNumber = 1
            PayloadData    = {1,2,3,4,5,6,7}


=head1 JUDGMENT

  PASS: Echo Reply Received

        IPv6 Header
            Version             = 6
            Traffic Class       = 0
            FlowLabel           = 0
            PayloadLength       = 15
            NextHeader          = 58 (ICMP)
            SourceAddress       = Target Link Local Address
            Destination Address = Tester Link Local Address

        ICMP Echo Reply
            Type           = 129 (Echo Reply)
            Code           = 0
            Checksum       = (auto)
            Identifier     = 0xffff (same as Echo Request)
            SequenceNumber = 1 (same as Echo Request)
            PayloadData    = {1,2,3,4,5,6,7} (same as Echo Request)

=head1 REFERENCE

RFC2460

3.  IPv6 Header Format

   Payload Length       16-bit unsigned integer.  Length of the IPv6
                        payload, i.e., the rest of the packet following
                        this IPv6 header, in octets.  (Note that any
                        extension headers [section 4] present are
                        considered part of the payload, i.e., included
                        in the length count.)

=head1 SEE ALSO

  perldoc V6evalTool

=cut