#!/usr/bin/perl
#
# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005 Yokogawa Electric Corporation,
# YDC Corporation, IPA (Information-technology Promotion Agency, Japan).
# All rights reserved.
# 
# Redistribution and use of this software in source and binary forms, with 
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# 1. Redistributions of source code must retain the above copyright 
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# 2. Redistributions in binary form must reproduce 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 
# derived from this software without specific prior written permission.
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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 
# products may be permitted without any notification to the copyrighters.
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHTERS, THE PROJECT AND 
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#

use V6evalTool;

$IF=Link0;
%pktdesc = (
	_ping4  => 'Send Echo Request',
	_arp1   => 'Recv ARP',
	_arp2   => 'Send ARP',
	_reply4 => 'Recv Echo Reply'
);

#----- start Capturing
vCapture($IF);

#----- send ICMP Echo
%ret=vSend($IF, _ping4);

#----- wait ARP or ICMP Reply
%ret=vRecv($IF,5,0,0, _arp1, _reply4);
if( $ret{status} != 0 ) {
	vLog(NG); 
	exit $V6evalTool::exitFail;
}

#----- check if ARP Request is received
if( $ret{recvFrame} eq '_arp1' ) {
	%ret=vSend($IF, _arp2);
	%ret=vRecv($IF,5,0,0, _reply4);
}

#----- check if ICMP Reply is received
if( $ret{recvFrame} ne '_reply4' ) {
        vLog(NG);
        exit $V6evalTool::exitFail; 
}
#----- OK
vLogHTML(OK);
exit $V6evalTool::exitPass;

__END__

=head1 NAME

  ping4 - IPv4 ICMP Echo Request/Reply

=head1 TARGET

  IPv4 node (Host and Router)

=head1 SYNOPSIS

=head1 INITIALIZATION

  Please config the target :
     IP Address : 192.168.0.2
     Netmask    : 255.255.255.0

=head1 TEST PROCEDURE

  Tester                      Target
    |                           |
    |-------------------------->|
    |   Echo Request            |
    |                           |
    |                           |
    |<--------------------------|
    |   (ARP request)           |
    |                           |
    |                           |
    |-------------------------->|
    |   (ARP reply)             |
    |                           |
    |                           | 
    |<--------------------------|
    |   Echo Reply              |
    |                           |
    |                           |
    v                           v


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

=head1 JUDGEMENT

  PASS: Echo Reply Received

=head1 SEE ALSO

  perldoc V6evalTool

=cut