#!/usr/bin/perl # # $Name: V6LC_P2_1_4_6 $ # # 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 # 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: IP_HL_DecrementIN.seq,v 1.7 2006/02/02 02:32:18 akisada Exp $ # ###################################################################### BEGIN { $V6evalTool::TestVersion = '$Name: V6LC_P2_1_4_6 $'; } use V6evalTool; use CommonSPEC; use lib '../'; use AdvancedFunctionality; sub cleanup_tunnel($); if ($V6evalTool::NutDef{'Type'} ne 'router') { vLogHTML("This test is for the router only
"); exit($V6evalTool::exitRouterOnly); } unless($AdvancedFunctionality::HAS_MULTIPLE_INTERFACES) { my $srcaddr = vMAC2LLAddr($V6evalTool::NutDef{'Link0_addr'}); $srcaddr =~ s/fe80::/3ffe:501:ffff:100:/; my $dstaddr = vMAC2LLAddr($V6evalTool::TnDef{'Link0_addr'}); $dstaddr =~ s/fe80::/3ffe:501:ffff:110:/; my $insrcaddr = vMAC2LLAddr($V6evalTool::TnDef{'Link0_addr'}); $insrcaddr =~ s/fe80::/3ffe:501:ffff:100:/; my $indstaddr = vMAC2LLAddr($V6evalTool::TnDef{'Link0_addr'}); $indstaddr =~ s/fe80::/3ffe:501:ffff:101:/; my $gateway = vMAC2LLAddr($V6evalTool::TnDef{'Link0_addr'}); my $Link0_device = $V6evalTool::NutDef{'Link0_device'}; if(vRemote('route.rmt', 'cmd=add', "prefix=3ffe:501:ffff:110::", 'prefixlen=64', "gateway=$gateway", "if=$Link0_device")) { vLogHTML('route.rmt: '. 'Can\'t configure the route.
'); exit($V6evalTool::exitFatal); } if(vRemote('tunnel.rmt', 'if=0 '. 'prefixlen=64 '. 'routeprefixlen=64 '. 'addrfamily=inet6 '. "prefix=3ffe:501:ffff:101:: ". "srcaddr=$srcaddr ". "dstaddr=$dstaddr ". "insrcaddr=$insrcaddr ". "indstaddr=$indstaddr ")) { vLogHTML('tunnel.rmt: '. 'Can\'t configure the tunnel.
'); exit($V6evalTool::exitFatal); } } $pktdesc{'echo_request_r15'} = 'Send Echo Request to Link0 (Hop Limit 15)'; $pktdesc{'echo_request_r14'} = 'Recv Echo Request from Link1 (Hop Limit 14)'; $endStatus = $V6evalTool::exitPass; $IF0 = 'Link0'; $IF1 = 'Link1'; #----- start capturing vCapture($IF0); if($AdvancedFunctionality::HAS_MULTIPLE_INTERFACES) { vCapture($IF1); } #====================================================================== vSend($IF0, 'echo_request_r15'); %ret = nd_vRecv_IN($AdvancedFunctionality::HAS_MULTIPLE_INTERFACES? $IF1: $IF0, $CommonSPEC::wait_reply, 0, 0, 'echo_request_r14'); if ($ret{'status'} == 0) { vLogHTML('OK
'); } else { vLogHTML('Cannot receive forwarded Echo Request
'); vLogHTML('NG
'); $endStatus = $V6evalTool::exitFail; } #----- end test if($AdvancedFunctionality::HAS_MULTIPLE_INTERFACES) { $ret = cleanup($IF0, $IF1); } else { $ret = cleanup_tunnel($IF0); } vStop($IF0); if($AdvancedFunctionality::HAS_MULTIPLE_INTERFACES) { vStop($IF1); } if ($ret == $CommonSPEC::Success) { exit($endStatus); } else { exit($V6evalTool::exitFatal); } #----------------------------------------------------------------------# sub cleanup_tunnel($) { my ($link) = @_; my $ret = cleanup($IF0); my $srcaddr = vMAC2LLAddr($V6evalTool::NutDef{'Link0_addr'}); $srcaddr =~ s/fe80::/3ffe:501:ffff:100:/; my $dstaddr = vMAC2LLAddr($V6evalTool::NutDef{'Link0_addr'}); $dstaddr =~ s/fe80::/3ffe:501:ffff:110:/; my $insrcaddr = vMAC2LLAddr($V6evalTool::TnDef{'Link0_addr'}); $insrcaddr =~ s/fe80::/3ffe:501:ffff:100:/; my $indstaddr = vMAC2LLAddr($V6evalTool::TnDef{'Link0_addr'}); $indstaddr =~ s/fe80::/3ffe:501:ffff:101:/; my $gateway = vMAC2LLAddr($V6evalTool::TnDef{'Link0_addr'}); my $Link0_device = $V6evalTool::NutDef{'Link0_device'}; if(vRemote('route.rmt', 'cmd=delete', "prefix=3ffe:501:ffff:110::", 'prefixlen=64', "gateway=$gateway", "if=$Link0_device")) { vLogHTML('route.rmt: '. 'Can\'t configure the route.
'); exit($V6evalTool::exitFatal); } if(vRemote('tunnel.rmt', 'if=0 '. 'deletetunnel '. 'prefixlen=64 '. 'routeprefixlen=64 '. 'addrfamily=inet6 '. "prefix=3ffe:501:ffff:101:: ". "srcaddr=$srcaddr ". "dstaddr=$dstaddr ". "insrcaddr=$insrcaddr ". "indstaddr=$indstaddr ")) { vLogHTML('tunnel.rmt: '. 'Can\'t configure the tunnel.
'); exit($V6evalTool::exitFatal); } return($ret); } ###################################################################### __END__ =head1 NAME IP_HL_DecrementIN - Hop Limit Decrement - Intermediate Node =head1 TARGET Router =head1 SYNOPSIS =begin html 
  IP_HL_DecrementIN.seq [-tooloption ...] -pkt IP_HL_DecrementIN.def
    -tooloption : v6eval tool option
=end html =head1 INITIALIZATION None =head1 TEST PROCEDURE Tester Target Tester (Link0) (Link1) | | | |-------------------------->| | | Echo Request to Link0 | | | (Hop Limit = 15) | | | | | | |-------------------------->| | | Neighbor Solicitation | | | | | |<--------------------------| | | Neighbor Advertisement | | | | | |-------------------------->| | | Echo Request to Link1 | | | (Hop Limit = 14) | | | | v v v 1. Send Echo Request to Link0 2. Wait Echo Request or NS from Link1 3. If NS received then send NA to Link1, and wait Echo Request again 4. Receive Echo Request Echo Request to Link0 Data is: IPv6 Header Version = 6 Traffic Class = 0 FlowLabel = 0 PayloadLength = 16 NextHeader = 58 (ICMPv6) HopLimit = 15 SourceAddress = Tester Global Address (Link0) DestinationAddress = Tester Global Address (Link1) ICMP Echo Request Type = 128 (Echo Request) Code = 0 Checksum = (auto) Identifier = 0xffff SequenceNumber = 1 PayloadData = {1, 2, 3, 4, 5, 6, 7, 8} =head1 JUDGEMENT PASS: Echo Request Received at Link1 IPv6 Header Version = 6 Traffic Class = 0 FlowLabel = 0 PayloadLength = 16 NextHeader = 58 (ICMPv6) HopLimit = 14 SourceAddress = Tester Global Address (Link0) DestinationAddress = Tester Global Address (Link1) ICMP Echo Request Type = 128 (Echo Request) Code = 0 Checksum = (auto) Identifier = 0xffff SequenceNumber = 1 PayloadData = {1, 2, 3, 4, 5, 6, 7, 8} =cut # =head1 REFERENCE # # RFC2460 # # 3. IPv6 Header Format # # Hop Limit 8-bit unsigned integer. Decremented by 1 by # each node that forwards the packet. The packet # # 8.2 Maximum Packet Lifetime # # Unlike IPv4, IPv6 nodes are not required to enforce maximum packet # lifetime. That is the reason the IPv4 "Time to Live" field was # renamed "Hop Limit" in IPv6. In practice, very few, if any, IPv4 # implementations conform to the requirement that they limit packet # lifetime, so this is not a change in practice. Any upper-layer # protocol that relies on the internet layer (whether IPv4 or IPv6) to # limit packet lifetime ought to be upgraded to provide its own # mechanisms for detecting and discarding obsolete packets. # =pod =head1 REFERENCE =begin html 
RFC 2460 - IPv6 Specification
=end html =head1 SEE ALSO perldoc V6evalTool =cut