#!/usr/bin/perl # # $Name: V6LC_4_0_5 $ # # Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 # 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. # # $Id: confirmPing1500.seq,v 1.7 2008/07/31 03:02:06 hide Exp $ # ###################################################################### BEGIN { $V6evalTool::TestVersion = '$Name: V6LC_4_0_5 $'; } use V6evalTool; use CommonPMTU; $pktdesc{'echo_request1500'} = "Send Echo Request (Packet size is $CommonPMTU::default_mtu (Media Type Default))"; $pktdesc{'echo_reply1500'} = 'Recv Echo Reply'; $endStatus = $V6evalTool::exitPass; $IF = 'Link0'; $mtu_diff_min = $CommonPMTU::default_mtu - 1280; vCPP("-DMTU_DIFF_MIN=$mtu_diff_min"); vCapture($IF); #====================================================================== if (setup11($IF) != $CommonPMTU::Success) { $ret = cleanup($IF); if ($ret == $CommonPMTU::Success) { exit($V6evalTool::exitFail); } else { exit($V6evalTool::exitFatal); } } #====================================================================== #----- create fragment pkt.def $original_name = "echo_reply1500"; #must same echo reply packet $MTU_value = 1500; #MTU value, fixed $PKT_size = 1500; #this size is IPv6 pakcet size.,1280,1400,1500 etc $frag_start = 48; #1280 or 48 #should be 48 $data_size_1st = $frag_start - 40 - 8; $data_size_2nd = ($PKT_size - 40) - $data_size_1st; #define packet format $header_ether = '_HETHER_nut2tn'; $ip_src = 'NUT_GL0_ADDR'; $ip_dst = 'TN2_GL2_ADDR'; $def_file = 'pkt_frag.def'; #fragment define file #write def file if(writefragdef($def_file, $original_name, $MTU_value,$PKT_size,$data_size_1st,$data_size_2nd, $header_ether, $ip_src, $ip_dst ) != $CommonPMTU::Success) { exit($V6evalTool::exitFatal); } vCPP("-DFRAG_DEF -DFRAG_ID=any"); #----- test vSend($IF, 'echo_request1500'); %ret = nd_vRecv_EN($IF, $CommonPMTU::wait_reply, 0, 0, 'echo_reply1500',@CommonPMTU::fragment_1st_name); if ($ret{'status'} == 0) { if($ret{'recvFrame'} eq 'echo_reply1500'){ vLogHTML('OK
'); } else{ vLogHTML('OK. recive 1st fragment.
'); $pkt_name = $ret{'recvFrame'}; $pkt_name =~ /^echo_reply(\d+)_1st_(\d+)$/; $size_2nd_frag = $1-$2-40; $name_2nd_frag = "echo_reply$1"."_2nd_$size_2nd_frag"; %ret = nd_vRecv_EN($IF, $CommonPMTU::wait_reply, 0, 0, "$name_2nd_frag"); if ($ret{'status'} == 0) { vLogHTML('OK. recive 2nd fragment.
'); } else { vLogHTML('NG. can\'t recive 2nd fragment.
'); $endStatus = $V6evalTool::exitFail; } } }else { vLogHTML('Cannot receive Echo Reply
'); vLogHTML('NG
'); $endStatus = $V6evalTool::exitFail; } unlink($def_file); #----- end test $ret = cleanup($IF); vStop($IF); if ($ret == $CommonPMTU::Success) { exit($endStatus); } else { exit($V6evalTool::exitFatal); } ###################################################################### __END__ =head1 NAME confirmPing1500 - ICMPv6 Echo Request 1500 octets =head1 TARGET Host and Router =head1 SYNOPSIS =begin html 
  configmPing1500.seq [-tooloption ...] -pkt configmPing1500.def
    -tooloption : v6eval tool option
=end html =head1 INITIALIZATION Common Test Setup 1.1 =head1 TEST PROCEDURE Verify that a node can reply to variable sized ICMP Echo Requests. TN2 TR1 NUT | | | |-------------------------------------------->| | 1.Echo Request | | | (1500 octets) | | | | | |<--------------------------------------------| | 2.Echo Reply | | | (1500 octets) | | | | | v v v 1. Send Echo Request 2. Receive Echo Reply <> Echo Request Data is: IPv6 Header Version = 6 Traffic Class = 0 FlowLabel = 0 PayloadLength = 1460 NextHeader = 58 (ICMPv6) SourceAddress = TN2's Global Address DestinationAddress = NUT's Global Address ICMP Echo Request Type = 128 (Echo Request) Code = 0 Checksum = (auto) Identifier = 0xffff SequenceNumber = 1 PayloadData = (PayloadLength - 8 octets) =head1 JUDGEMENT PASS: The NUT sent an Echo Reply to TR1 1500 octets in packet size. <> Echo Reply or Fragment Echo Reply Received IPv6 Header Version = 6 Traffic Class = 0 FlowLabel = 0 PayloadLength = 1460 NextHeader = 58 (ICMPv6) SourceAddress = NUT's Global Address Destination Address = TN2's Global 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 = (PayloadLength - 8 octets) (same as Echo Request) =head1 CLEANUP Common Test Cleanup =cut # =head1 REFERENCE # # # RFC 2463 # # (omit) # # 2.2 Message Source Address Determination # # A node that sends an ICMPv6 message has to determine both the Source # and Destination IPv6 Addresses in the IPv6 header before calculating # the checksum. If the node has more than one unicast address, it must # choose the Source Address of the message as follows: # # (a) If the message is a response to a message sent to one of the # node's unicast addresses, the Source Address of the reply must # be that same address. # # (b) If the message is a response to a message sent to a multicast or # anycast group in which the node is a member, the Source Address # of the reply must be a unicast address belonging to the # interface on which the multicast or anycast packet was received. # # (c) If the message is a response to a message sent to an address # that does not belong to the node, the Source Address should be # that unicast address belonging to the node that will be most # helpful in diagnosing the error. For example, if the message is # a response to a packet forwarding action that cannot complete # successfully, the Source Address should be a unicast address # belonging to the interface on which the packet forwarding # failed. # # (d) Otherwise, the node's routing table must be examined to # determine which interface will be used to transmit the message # to its destination, and a unicast address belonging to that # interface must be used as the Source Address of the message. # # (omit) # # 4.1 Echo Request Message # # 0 1 2 3 # 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 # +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ # | Type | Code | Checksum | # +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ # | Identifier | Sequence Number | # +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ # | Data ... # +-+-+-+-+- # # IPv6 Fields: # # Destination Address # # Any legal IPv6 address. # # ICMPv6 Fields: # # Type 128 # # Code 0 # # Identifier An identifier to aid in matching Echo Replies # to this Echo Request. May be zero. # # Sequence Number # # A sequence number to aid in matching Echo Replies # to this Echo Request. May be zero. # # Data Zero or more octets of arbitrary data. # # Description # # Every node MUST implement an ICMPv6 Echo responder function that # receives Echo Requests and sends corresponding Echo Replies. A node # SHOULD also implement an application-layer interface for sending Echo # Requests and receiving Echo Replies, for diagnostic purposes. # # Upper layer notification # # Echo Request messages MAY be passed to processes receiving ICMP # messages. # # (omit) # # =pod =head1 REFERENCE =begin html 
RFC 1981 - Path MTU Discovery for IPv6
=end html =head1 SEE ALSO perldoc V6evalTool =cut