#!/usr/bin/perl
#
# SCTP Conformance Test Suite Implementation
# (C) Copyright Fujitsu Ltd. 2008, 2009
#
# This file is part of the SCTP Conformance Test Suite implementation.
#
# The SCTP Conformance Test Suite implementation is free software;
# you can redistribute it and/or modify it under the terms of
# the GNU General Public License version 2 as published by
# the Free Software Foundation.
#
# The SCTP Conformance Test Suite implementation is distributed in the
# hope that it will be useful, but WITHOUT ANY WARRANTY; without even
# the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
# PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNU CC; see the file COPYING.  If not, write to
# the Free Software Foundation, 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
#
# Please send any bug reports or fixes you make to the
# email address(es):
#    networktest sctp <networktest-sctp@lists.sourceforge.net>
#
# Or submit a bug report through the following website:
#    http://networktest.sourceforge.net/
#
# Written or modified by:
#    Hiroaki Kago <linuxsctp-kg@ml.css.fujitsu.com>
#    Wei Yongjun <yjwei@cn.fujitsu.com>
#
# Any bugs reported given to us we will try to fix... any fixes shared will
# be incorporated into the next SCTP release.
#
##############################################################################
BEGIN {	$V6evalTool::TestVersion = '$Name: REL_1_0_0 $'; }

use lib "../common";
use V6evalTool;
use SCTP;

%pktdesc = (
	sctp_chunk_shutdown_ack_ootb		=> "Send SCTP CHUNK_SHUTDOWN_ACK (OOTB Packet)",
	sctp_chunk_shutdown_complete_ootb	=> "Recv SCTP CHUNK_SHUTDOWN_COMPLETE",
);

$IF0 = Link0;

vCapture($IF0);

sctpCheckEnv($IF0);

vLogHTML('<B>================ Main Test =================</B>');

vSend($IF0, sctp_chunk_shutdown_ack_ootb);

%ret = vWarpRecv($IF0, 30, 0, 0, sctp_chunk_shutdown_complete_ootb);
if($ret{status} != 0 || $ret{recvFrame} ne sctp_chunk_shutdown_complete_ootb) {
	vLogHTML('Cannot receive SCTP CHUNK_SHUTDOWN_COMPLETE<BR>');
	vLogHTML('<FONT COLOR="#00FF00">NG</FONT>'); 
	exit $V6evalTool::exitFail;
}

vLogHTML(OK);
exit $V6evalTool::exitPass;

######################################################################
__END__

=head1 NAME

  OOTB_ShutdownAckChunk.seq - SHUTDOWN-ACK chunk is received from an address with which endpoint has no association

=head1 PURPOSE

  To check that if SHUTDOWN-ACK chunk is received from a destination address
  corresponding to which there is no association, the enpoint should responds
  it with SHUTDOWN-COMPLETE message.

=head1 SYNOPSIS

=begin html
<PRE>
  <A HREF="./OOTB_ShutdownAckChunk.seq">./OOTB_ShutdownAckChunk.seq</A> [-tooloption ...] -pkt <A HREF="./OOTB_ShutdownAckChunk.def">./OOTB_ShutdownAckChunk.def</A>
    -tooloption : v6eval tool option
  See Also: <A HREF="../common/STD_PKT_COMMON.def">../common/STD_PKT_COMMON.def</A>
            <A HREF="../common/SCTP_COMMON.def">../common/SCTP_COMMON.def</A>
</PRE>

=end html

=head1 PRE-TEST CONDITION

  Association is not established between endpoint A and B. Arrange the data
  in endpoint A such that SHUTDOWN-ACK is sent to endpoint B.

=head1 TEST PROCEDURE

  Endpoint A                           Endpoint B                ULP
  (CLOSED)                             (CLOSED)

  SHUTDOWN-ACK ----------------->

               <-----------------       SHUTDOWN-COMPLETE

  TEST DESCRIPTION:

  1. Send SHUTDOWN-ACK message from endpoint A to endpoint B, when 
     there is no association between them. 
  2. Check A: SHUTDOWN-COMPLETE message will be sent.
  3. Check B: Verification tag in the SHUTDOWN-COMPLETE message will be 
     set equal to the verification tag in the received SHUTDOWN-ACK message. 
  4. Check C: T bit in the chunk flags is set to 1.
  5. Check D: State of endpoint B is not disturbed.

=head1 NOTE

  None

=head1 REFERENCE

  RFC 4960

  8.4.  Handle "Out of the Blue" Packets

=begin html
<PRE>
    <B>5)  If the packet contains a SHUTDOWN ACK chunk, the receiver should
        respond to the sender of the OOTB packet with a SHUTDOWN
        COMPLETE.  When sending the SHUTDOWN COMPLETE, the receiver of
        the OOTB packet must fill in the Verification Tag field of the
        outbound packet with the Verification Tag received in the
        SHUTDOWN ACK and set the T bit in the Chunk Flags to indicate
        that the Verification Tag is reflected.  Otherwise,</B>
</PRE>

=end html