#!/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_cookie_ack_ootb	=> "Send CHUNK_COOKIE_ACK (OOTB Packet)",
);

$IF0 = Link0;

vCapture($IF0);

sctpCheckEnv($IF0);

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

vSend($IF0, sctp_chunk_cookie_ack_ootb);

%ret = vWarpRecv($IF0, 5, 0, 0, sctp_chunk_any_rcv);
if($ret{status} == 0 && $ret{recvFrame} eq sctp_chunk_any_rcv) {
	vLogHTML('Received Unexpected Packet<BR>');
	vLogHTML('<FONT COLOR="#00FF00">NG</FONT>'); 
	exit $V6evalTool::exitFail;
}

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

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

=head1 NAME

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

=head1 PURPOSE

  To check that if COOKIE-ACK chunk is received from an address with
  which endpoint has no association, the enpoint should silently
  discard the packet.

=head1 SYNOPSIS

=begin html
<PRE>
  <A HREF="./OOTB_CookieAckChunk.seq">./OOTB_CookieAckChunk.seq</A> [-tooloption ...] -pkt <A HREF="./OOTB_CookieAckChunk.def">./OOTB_CookieAckChunk.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 COOKIE-ACK is sent to endpoint B.

=head1 TEST PROCEDURE

  Endpoint A                           Endpoint B                ULP
  (CLOSED)                             (CLOSED)

  COOKIE-ACK     ---------------->      Silently discard

  TEST DESCRIPTION:

  1. Send COOKIE-ACK message from endpoint A to B, when there is
     no association between them. 
  2. Check A: COOKIE-ACK message will be silently discarded.
  3. Check B: State of endpoint B is not disturbed.

=head1 NOTE

  None

=head1 REFERENCE

  RFC 4960

  8.4.  Handle "Out of the Blue" Packets

    6)  If the packet contains a SHUTDOWN COMPLETE chunk, the receiver
        should silently discard the packet and take no further action.
        Otherwise,

=begin html
<PRE>
    <B>7)  If the packet contains a "Stale Cookie" ERROR or a COOKIE ACK,
        the SCTP packet should be silently discarded.  Otherwise,</B>
</PRE>

=end html

    8)  The receiver should respond to the sender of the OOTB packet with
        an ABORT.  When sending the ABORT, the receiver of the OOTB
        packet MUST fill in the Verification Tag field of the outbound
        packet with the value found in the Verification Tag field of the
        OOTB packet and set the T bit in the Chunk Flags to indicate that
        the Verification Tag is reflected.  After sending this ABORT, the
        receiver of the OOTB packet shall discard the OOTB packet and
        take no further action.