#!/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_init_ack_zero_stream	=> "Send SCTP CHUNK_INIT_ACK (with OS = 0 and MIS = 0)",
	sctp_chunk_abort_invalid_param	=> "Recv SCTP CHUNK_ABORT (Invalid Mandatory Parameter)",
);

$IF0 = Link0;

vCapture($IF0);

sctpCheckEnv($IF0);

sctpStartClient($IF0);

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

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

sctpFetchInitField(\%ret);

vSend($IF0, sctp_chunk_init_ack_zero_stream);

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

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

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

=head1 NAME

  InitAckZeroStream.seq - INIT-ACK chunk is received with Outbound Stream and Inbound Stream parameters set to zero

=head1 PURPOSE

  To check that if INIT-ACK chunk is received with number of outbound stream
  and inbound stream set to zero, the endpoint should responded it with ABORT
  chunk including cause of invalid mandatory parameter.

=head1 SYNOPSIS

=begin html
<PRE>
  <A HREF="./InitAckZeroStream.seq">./InitAckZeroStream.seq</A> [-tooloption ...] -pkt <A HREF="./InitAckZeroStream.def">./InitAckZeroStream.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 INIT-ACK message with number of outbound
  streams and inbound stream set to zero is sent to endpoint B.

=head1 TEST PROCEDURE

  Endpoint A                           Endpoint B                ULP
  (ESTABLISHED)                        (ESTABLISHED)

                                                   <-----    Associate
               <-----------------       INIT

  INIT-ACK      ----------------->
  (with OS = 0, MIS = 0)
                <-----------------      ABORT
                                        (Invalid Mandatory Parameter)

  TEST DESCRIPTION:

  1. Attempt to make an association from endpoint A to endpoint B. Send 
     INIT-ACK message with number of outbound stream and inbound stream
     set to zero.
     Record the message sequence using a signal emulator.
  2. Check A: INIT-ACK message is responded with ABORT including cause of 
     invalid mandatory parameter.

=head1 NOTE

  None

=head1 REFERENCE

  RFC 4960

  3.3.3.  Initiation Acknowledgement (INIT ACK) (2)

    Number of Outbound Streams (OS): 16 bits (unsigned integer)

      Defines the number of outbound streams the sender of this INIT ACK
      chunk wishes to create in this association.  The value of 0 MUST
      NOT be used, and the value MUST NOT be greater than the MIS value
      sent in the INIT chunk.

=begin html
<PRE>
      <B>Note: A receiver of an INIT ACK with the OS value set to 0 SHOULD
      destroy the association discarding its TCB.</B>
</PRE>

=end html