#!/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_future	=> "Send SCTP CHUNK_SHUTDOWN (NO SEND DATA match)",
	sctp_chunk_abort		=> "Recv SCTP CHUNK_ABORT"
);

$IF0 = Link0;

vCapture($IF0);

sctpCheckEnv($IF0);

sctpStartClient($IF0, 100);

vListen($IF0);

vAccept($IF0);

vRecvMsg($IF0);

vClear($IF0);

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

vSend($IF0, sctp_chunk_shutdown_future);

%ret = vWarpRecv($IF0, 10, 0, 0, sctp_chunk_abort);
if ($ret{status} !=0 || $ret{recvFrame} ne sctp_chunk_abort){
	vSend($IF0, sctp_chunk_abort_snd);
	vLogHTML('Cannot receive SCTP CHUNK_ABORT<BR>');
	vLogHTML('<FONT COLOR="#00FF00">NG</FONT>');
	exit $V6evalTool::exitFail;
}

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

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

=head1 NAME

  ShutWithNotSendTSN.seq - SHUTDOWN is received with TSN greater than the Cumulative TSN Ack point

=head1 PURPOSE

  To check that if SHUTDOWN is received with TSN greater than the Cumulative
  TSN Ack point, endpoint should respond with the ABORT message with "Protocol
  Violation" error cause.

=head1 SYNOPSIS

=begin html
<PRE>
  <A HREF="./ShutWithNotSendTSN.seq">./ShutWithNotSendTSN.seq</A> [-tooloption ...] -pkt <A HREF="./ShutWithNotSendTSN.def">./ShutWithNotSendTSN.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 established between endpoint A and B. Arrange data
  in endpoint A such that SHUTDOWN chunk with TSN greater than the
  Cumulative TSN Ack point is sent to endpoint B.

=head1 TEST PROCEDURE

  Endpoint A                           Endpoint B                ULP
  (ESTABLISHED)                        (ESTABLISHED)

  SHUTDOWN      ----------------->
  (with TSN greater than the Cumulative TSN Ack point)
                <----------------       ABORT
                                        (Protocol Violation)

  TEST DESCRIPTION:

  1. Send SHUTDOWN chunk from endpoint A to B with TSN greater than
     the Cumulative TSN Ack point.
  2. Check A: ABORT should be received at endpoint A.
  3. Check B: Error cause in ABORT is set to "Protocol Violation".

=head1 NOTE

  None

=head1 REFERENCE

  RFC 4960

  9.2.  Shutdown of an Association

    Upon reception of the SHUTDOWN, the peer endpoint shall

    -  enter the SHUTDOWN-RECEIVED state,

    -  stop accepting new data from its SCTP user, and

    -  verify, by checking the Cumulative TSN Ack field of the chunk,
       that all its outstanding DATA chunks have been received by the
       SHUTDOWN sender.

    Once an endpoint has reached the SHUTDOWN-RECEIVED state, it MUST NOT
    send a SHUTDOWN in response to a ULP request, and should discard
    subsequent SHUTDOWN chunks.

    If there are still outstanding DATA chunks left, the SHUTDOWN
    receiver MUST continue to follow normal data transmission procedures
    defined in Section 6, until all outstanding DATA chunks are
    acknowledged; however, the SHUTDOWN receiver MUST NOT accept new data
    from its SCTP user.