#!/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/spec/FH_InvalidLength.seq,v 1.19 2004/08/19 09:04:50 akisada Exp $ # ###################################################################### BEGIN { $V6evalTool::TestVersion = '$Name: V6PC_P1_1_3_3 $'; } use V6evalTool; %pktdesc = ( echo_request => 'Send Echo Request (Preparation)', echo_reply => 'Recv Echo Reply', ns => 'Recv Neighbor Solicitation', na => 'Send Neighbor Advertisement', echo_request_1st => 'Send Echo Request (1st fragment) Invalid Payload Length', echo_request_2nd => 'Send Echo Request (2nd fragment)', icmperr => 'Recv ICMP Error (Parameter Problem, erroneous header field encountered)', unicast_ns => 'Recv Unicast Neighbor Solicitation', unicast_ns_wsll => 'Recv Unicast Neighbor Solicitation (without SLL)', ); %nd = ( 'ns' => 'Recv Neighbor Solicitation', 'unicast_ns' => 'Recv Unicast Neighbor Solicitation', 'unicast_ns_wsll'=> 'Recv Unicast Neighbor Solicitation (without SLL)', ); $loop_count = 65; $IF = Link0; vCapture($IF); #----- preparation vLogHTML('Begin Preparation'); vSend($IF, echo_request); %ret = vRecv($IF, 5, 0, 0, ns, echo_reply); if ($ret{status} != 0) { vLogHTML('NG'); exit $V6evalTool::exitFail; } if ($ret{recvFrame} eq 'ns') { vSend($IF, na); %ret = vRecv($IF, 5, 0, 0, echo_reply); if ($ret{status} != 0) { vLogHTML('NG'); exit $V6evalTool::exitFail; } } if ($ret{recvFrame} ne 'echo_reply') { vLogHTML('NG'); exit $V6evalTool::exitFail; } vLogHTML('End Preparation'); #----- main test vSend($IF, echo_request_1st); vSend($IF, echo_request_2nd); # timeout for($i=0; $i< $loop_count; $i ++){ %ret = vRecv($IF, 1, 0, 0, sort(keys(%nd)), icmperr); if ($ret{status} == 0 && $ret{recvFrame} eq 'icmperr') { last; } $count = $ret{'recvCount'}; while(($recv, $send) = each(%nd)){ if ($ret{recvFrame} eq $recv) { vSend($IF, na); $i --; $count --; last; } } if($count){ vLogHTML('NG'); exit $V6evalTool::exitFail; } } if ($ret{status} == 0 && $ret{recvFrame} eq 'icmperr') { vLogHTML('OK'); exit $V6evalTool::exitPass; } if(!$count){ vLogHTML('OK
'); vLogHTML('the fragments that have been received for that packet was discarded'); exit $V6evalTool::exitPass; } vLogHTML('NG'); exit $V6evalTool::exitFail; ###################################################################### __END__ =head1 NAME FH_InvalidLength - check Fragment Reassembly (Invalid Length) =head1 TARGET Host and Router =head1 SYNOPSIS =begin html 
  FH_InvalidLength.seq [-tooloption ...] -pkt FH_InvalidLength.def
    -tooloption : v6eval tool option
=end html =head1 INITIALIZATION 1. Ping to Target (create Neighbor Cache Entries, if not exist) 2. Override Neighbor Cache Entries =head1 TEST PROCEDURE Tester Target | | |-------------------------->| | Echo Request (1st) | | | | | |-------------------------->| | Echo Request (2nd) | | | |(<------------------------)| | No Packet | | or | |<--------------------------| | ICMP Error | | | | | v v 1. Send Echo Request (1st fragment) 2. Send Echo Request (2nd fragment) 3. No packets from Target or Received ICMP Error(should) Echo Request (1st fragment) is: IPv6 Header Version = 6 Traffic Class = 0 FlowLabel = 0 PayloadLength = 527 (not multiple of 8 octets) NextHeader = 56 (Fragment Header) SourceAddress = Tester Link Local Address DestinationAddress = Target Link Local Address Fragment Header NextHeader = 58 (ICMP) FragmentOffset = 0 (1st fragment) MFlag = 1 (more fragment) =head1 JUDGEMENT PASS: No packet from Target or PASS: ICMP Error Received IPv6 Header Version = 6 Traffic Class = 0 FlowLabel = 0 PayloadLength = 575 NextHeader = 58 (ICMP) SourceAddress = Target Link Local Address Destination Address = Tester Link Local Address ICMP Error Type = 4 (Parameter Problem) Code = 0 (erroneous header field encountered) Checksum = (auto) Pointer = 4 (Pointer to Payload Length in IPv6 Header) PayloadData = (As much of 1st Fragment of Echo Request as will fit without the ICMPv6 packet exceeding the minimum IPv6 MTU) =head1 REFERENCE RFC2460 4.5 Fragment Header : The following error conditions may arise when reassembling fragmented packets: If insufficient fragments are received to complete reassembly of a packet within 60 seconds of the reception of the first-arriving fragment of that packet, reassembly of that packet must be abandoned and all the fragments that have been received for that packet must be discarded. If the first fragment (i.e., the one with a Fragment Offset of zero) has been received, an ICMP Time Exceeded -- Fragment Reassembly Time Exceeded message should be sent to the source of that fragment. =begin html 
      If the length of a fragment, as derived from the fragment packet's
      Payload Length field, is not a multiple of 8 octets and the M flag
      of that fragment is 1, then that fragment must be discarded and an
      ICMP Parameter Problem, Code 0, message should be sent to the
      source of the fragment, pointing to the Payload Length field of   
      the fragment packet.
=head1 SEE ALSO perldoc V6evalTool =cut