#!/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_abort_noerr	=> "Send SCTP CHUNK_ABORT",
);

$IF0 = Link0;

vCapture($IF0);

sctpCheckEnv($IF0);

sctpStartEchoServer($IF0);

vConnect($IF0);

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

vSend($IF0, sctp_chunk_abort_noerr);

vLogHTML('<B>=== Check Whether Association is removed ===</B>');

vSend($IF0, sctp_chunk_data_snd);

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

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

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

=head1 NAME

  AbortWithNoError.seq - Termination of an association by receiving ABORT with no error cause

=head1 PURPOSE

  To check that receiving ABORT message with no error cause can terminate
  an association.

=head1 SYNOPSIS

=begin html
<PRE>
  <A HREF="./AbortWithNoError.seq">./AbortWithNoError.seq</A> [-tooloption ...] -pkt <A HREF="./AbortWithNoError.def">./AbortWithNoError.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 
  the data in endpoint A such that an ABORT message is sent to 
  endpoint B containing no error cause in it.

=head1 TEST PROCEDURE

  Endpoint A                           Endpoint B                ULP
  (ESTABLISHED)                        (ESTABLISHED)

  ABORT             -------------->    Association is removed
  With no error cause
                                          Communication Lost  ---------> 

  TEST DESCRIPTION:

  1. Attempt to terminate an association between endpoint A and endpoint 
     B by sending ABORT message with no error cause.
  2. ABORT message is sent either with Peer's V-tag or Local V-tag with 
     T-bit set to 0.
  3. Check A: No Acknowledgement is sent for the ABORT message and 
     association is removed.
  4. Check B: ULP are reported of the association closure.

=head1 NOTE

  None

=head1 REFERENCE

  RFC 4960

  9.1.  Abort of an Association

    When an endpoint decides to abort an existing association, it MUST
    send an ABORT chunk to its peer endpoint.  The sender MUST fill in
    the peer's Verification Tag in the outbound packet and MUST NOT
    bundle any DATA chunk with the ABORT.  If the association is aborted
    on request of the upper layer, a User-Initiated Abort error cause
    (see Section 3.3.10.12) SHOULD be present in the ABORT chunk.

    An endpoint MUST NOT respond to any received packet that contains an
    ABORT chunk (also see Section 8.4).

    An endpoint receiving an ABORT MUST apply the special Verification
    Tag check rules described in Section 8.5.1.

    After checking the Verification Tag, the receiving endpoint MUST
    remove the association from its record and SHOULD report the
    termination to its upper layer.  If a User-Initiated Abort error
    cause is present in the ABORT chunk, the Upper Layer Abort Reason
    SHOULD be made available to the upper layer.