#!/usr/bin/perl # # Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005 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. # # Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005 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. # # $TAHI: ct/icmp/Time_Exc_Link-Local.seq,v 1.5 2004/08/19 09:04:33 akisada Exp $ #---------------------------------------------------------------------- BEGIN { $V6evalTool::TestVersion = '$Name: V6PC_P1_1_3_3 $'; } use V6evalTool; use icmp; $IF = Link0; #---------------------------------------------------------------------- # Initialization #---------------------------------------------------------------------- vLogHTML("Initialization
"); vCapture($IF); $ret = mkNCE_Link(); if ($ret != 0) { vLog("*** NUT can not be initialized !! ***"); exit($V6evalTool::exitFail); } else { vLog("TN created the entry of TN's link-local address to Neighbor cache of NUT."); }; #---------------------------------------------------------------------- # Check fragment reassembly. #---------------------------------------------------------------------- %pktdesc = ( echo_request_1st_link_local => 'Send 1st Fragmented Echo Request (Link-local address)', echo_request_2nd_link_local => 'Send 2nd Fragmented Echo Request (Link-local address)', echo_reply_link_local_1024 => 'Receive Echo Reply (Link-local address)', echo_request_1st => 'Send 1st Fragmented Echo Request (Link-local address)', time_exceeded => 'Receive Time Exceeded (fragment reassembly)', ns_local => 'Receive Neighbor Solicitation', ns_local_sll => 'Receive Neighbor Solicitation', na_local => 'Send Neighbor Advertisement' ); vLogHTML('Begin check fragment reassembly'); vSend($IF, echo_request_1st_link_local); vSend($IF, echo_request_2nd_link_local); #%ret = vRecv($IF, 5, 0, 0, echo_reply_link_local_1024); %ret = icmp_vRecv($IF, 5, 0, 0, echo_reply_link_local_1024); if ($ret{status} == 0 && $ret{recvFrame} eq 'echo_reply_link_local_1024') { vLogHTML('OK
'); } else { vLogHTML('Not replied.'); goto error; }; vLogHTML('End check

'); #---------------------------------------------------------------------- # Test #---------------------------------------------------------------------- vLogHTML("Test
"); vSend($IF, echo_request_1st); #%ret = vRecv($IF, 65, 0, 0, time_exceeded, ns_local, ns_local_sll); %ret = icmp_vRecv($IF, 65, 0, 0, time_exceeded); if ($ret{status} != 0) { vLog("TN can not receive ICMPv6 error message from NUT"); goto error; } elsif ($ret{recvFrame} eq 'time_exceeded') { vLog("TN can receive ICMPv6 Time Exceeded message from NUT"); vLog("OK"); exit($V6evalTool::exitPass); } elsif ($ret{recvFrame} eq 'ns_local' || $ret{recvFrame} eq 'ns_local_sll') { vSend($IF, na_local); %ret = vRecv($IF, 65, 0, 0, time_exceeded); if ($ret{recvFrame} eq 'time_exceeded') { vLog("TN can receive ICMPv6 Time Exceeded message from NUT"); vLog("OK"); exit($V6evalTool::exitPass); } else { vLog("TN can not receive ICMPv6 error message from NUT"); goto error; } } else { vLog("TN receive unexpected packets from NUT"); goto error; }; error: vLog("FAIL"); exit($V6evalTool::exitFail); #---------------------------------------------------------------------- __END__ =head1 NAME Time_Exc_Link-Local.seq - check Time Exceeded 1 (link local address) =head1 TARGET Host/Router =head1 SYNOPSIS Time_Exc_Link-Local.seq [-tooloption ...] -p Time_Exc_Link-Local.def =head1 INITIALIZATION Before starting test, check NUT's fragment reassembly function. When test starts, states of Neighbor Cache Entry for TN's addresses are reachable. =head1 TEST PROCEDURE This test verifies that NUT sends valid ICMPv6 Time Exceeded (code 1) in response to a packet which can not be reassemble. And this test verifies that the message processing rule , (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. TN NUT --------------------------- 1. === fragmented (1st) packet ===> src address : TN link local address dst address : NUT link local address 2. << JUDGEMENT >> <=== ICMPv6 Time Exceeded === src address : NUT link local address dst address : TN link local address Code is 1 =head1 JUDGEMENT << PASS >> NUT send ICMPv6 Time Exceeded. << FAIL >> NUT do not send ICMPv6 Time Exceeded. =head1 REFERENCE RFC2463 3.3 Time Exceeded 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 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Unused | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | As much of invoking packet | + as will fit without the ICMPv6 packet + | exceeding the minimum IPv6 MTU [IPv6] | IPv6 Fields: =begin html 

   Destination Address
                  Copied from the Source Address field of the invoking
                  packet.
=end html ICMPv6 Fields: =begin html 
   Type           3
=end html =begin html 
   Code           0 - hop limit exceeded in transit

                  1 - fragment reassembly time exceeded
=end html Unused This field is unused for all code values. It must be initialized to zero by the sender and ignored by the receiver. Description If a router receives a packet with a Hop Limit of zero, or a router decrements a packet's Hop Limit to zero, it MUST discard the packet and send an ICMPv6 Time Exceeded message with Code 0 to the source of the packet. This indicates either a routing loop or too small an initial Hop Limit value. The rules for selecting the Source Address of this message are defined in section 2.2. =head1 SEE ALSO perldoc V6evalTool =cut