#!/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 = ();

$IF0 = Link0;

vCapture($IF0);

sctpCheckEnv($IF0);

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

sctpStartClient($IF0);

vListen($IF0);

vAccept($IF0);

vRecvMsg($IF0);

vShutdown($IF0);

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

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

=head1 NAME

  InitAckWithoutAddr.seq - INIT-ACK chunk is received with no address parameters present

=head1 PURPOSE

  To check that if INIT-ACK chunk is received with no address parameters present
  then the endpoint shall take the source IP address from which the chunk
  arrives and record it, in combination with the SCTP source port number, as
  the only destination transport address for this peer.

=head1 SYNOPSIS

=begin html
<PRE>
  <A HREF="./InitAckWithoutAddr.seq">./InitAckWithoutAddr.seq</A> [-tooloption ...] -pkt <A HREF="./InitAckWithoutAddr.def">./InitAckWithoutAddr.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 no transport
  address is sent to endpoint B.

=head1 TEST PROCEDURE

  Endpoint A                           Endpoint B                ULP
  (CLOSED)                             (CLOSED)

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

  INIT-ACK      ----------------->

                <-----------------      COOKIE-ECHO

  COOKIE-ACK    ----------------->

  TEST DESCRIPTION:

  1. Attempt to make an association from endpoint A to B. Send INIT-ACK
     message containing no IP address after received INIT message. 
     Record the message sequence using a signal emulator.
  2. Check A: COOKIE-ECHO is sent at the source IP address from which
     INIT-ACK is received. 
  3. Check B: Other messages from endpoint B are sent at the source IP 
     address from which INIT-ACK is received.
  4. Check C: Association is established between endpoint A and B.

=head1 NOTE

  None

=head1 REFERENCE

  RFC 4960

  5.1.2.  Handle Address Parameters

    During the association initialization, an endpoint shall use the
    following rules to discover and collect the destination transport
    address(es) of its peer.

=begin html
<PRE>
    <B>A) If there are no address parameters present in the received INIT or
       INIT ACK chunk, the endpoint shall take the source IP address from
       which the chunk arrives and record it, in combination with the
       SCTP source port number, as the only destination transport address
       for this peer.</B>
</PRE>

=end html

    B) If there is a Host Name parameter present in the received INIT or
       INIT ACK chunk, the endpoint shall resolve that host name to a
       list of IP address(es) and derive the transport address(es) of
       this peer by combining the resolved IP address(es) with the SCTP
       source port.