#!/usr/bin/perl
#
# $Copyright$
#
# $TAHI: ct/nd/ncStateByNs4NoNce.seq,v 1.30 2003/10/19 19:31:18 masaxmasa Exp $

########################################################################
BEGIN { $V6evalTool::TestVersion = '$Name:  $ '; }
 
use V6evalTool;
use nd;

ndOptions(@ARGV);

# The following generate debugging messages.
$nd::debug=$ndOpt_v|$ndOpt_vv;

# You can specifies debug options to a remote control program.
# If you want to know more detail, please see the following:
# - V6evalTool.pm: perldoc V6evalTool
# - V6evalRemote.pm: perldoc V6evalRemote
$nd::remote_debug="-o1" if $ndOpt_vv;

$IF=Link0;
$exit_rtn=$V6evalTool::Pass;

#
#
#
$type=$V6evalTool::NutDef{Type};
if($type ne host && $type ne router) {
    vLogHTML(ndErrmsg("ERROR: $V6evalTool::NutDef{Type}: ".
		      "Unknown target type<BR>"));
    exit $V6evalTool::exitFail;
}

#
# sub test definition:
# - sending pattern,
# - SLLA vs cached LLA
# - expected state
# - message
#
$idx_ptn=0;
$idx_lla=1;
$idx_exp=2;
$idx_explla=3;
$idx_msg=4;
$idx_inc_ip=5;
$idx_prb_ip=6;
$idx_rpy_ip=7;
$idx_ign_ip=8;
$idx_non_n=9;
$idx_rpy_n=10;
$idx_ign_n=11;
$idx_stl_sr=12;
$idx_ign_sr=13;
@null=();

#
@def_unicast_ns_tn2nut=
    (
     unicast_ns_tn2nut,
     same,
     '(INCOMPLETE|NONCE)',
     unchanged,
     'unicast NS w/o SLL',
     \@null, \@null, \@null, \@null,
     \@null, \@null, \@null,
     \@null, \@null
     );

#
@reply_unicast_ns_tn2nut_sll=
    (unicast_na_nut2tn_rSo, unicast_na_nut2tn_rSO_tll) if $type eq host;
@reply_unicast_ns_tn2nut_sll=
    (unicast_na_nut2tn_RSo, unicast_na_nut2tn_RSO_tll) if $type eq router;
@def_unicast_ns_tn2nut_sll=
    (
     unicast_ns_tn2nut_sll,
     same,
     STALE,
     unchanged,
     'unicast NS w/ SLL',
     \@null, \@null, \@reply_unicast_ns_tn2nut_sll, \@null,
     \@null, \@null, \@null,
     \@null, \@null
     );

#
@reply_multicast_ns_tn2nut_sll=
    (unicast_na_nut2tn_rSo, unicast_na_nut2tn_rSO_tll) if $type eq host;
@reply_multicast_ns_tn2nut_sll=
    (unicast_na_nut2tn_RSo, unicast_na_nut2tn_RSO_tll) if $type eq router;
@def_multicast_ns_tn2nut_sll=
    (
     multicast_ns_tn2nut_sll,
     same,
     STALE,
     unchanged,
     'multicast NS w/ SLL',
     \@null, \@null, \@reply_multicast_ns_tn2nut_sll, \@null,
     \@null, \@null, \@null,
     \@null, \@null
     );

#
#
#
@defs=
    (
#     \@def_unicast_ns_tn2nut,
     \@def_unicast_ns_tn2nut_sll,
     \@def_multicast_ns_tn2nut_sll,
     );

#
#
#
vCapture($IF);

#
#
#
$idx=0;
foreach(@defs) {
    $exp=@$_[$idx_exp];
    $explla=@$_[$idx_explla];
    $msg=@$_[$idx_msg];
    vLogHTML("<HR>");
    vLogHTML("<FONT SIZE=\"+2\">*** No Neighbor Cache Entry vs. $msg ***</FONT><BR>");
    $s=checkState($_);
    $c=ndCachedLLA($explla);
    if($s =~ /$exp/ && $c eq $explla) {
        $result{$idx}=$V6evalTool::exitPass;
        vLogHTML("<A NAME=\"T$idx\">OK: The target was $s/$c</A><BR>");
    } else {
        $exit_rtn=$V6evalTool::exitFail;
        $result{$idx}=$exit_rtn;
        vLogHTML("<A NAME=\"T$idx\">".
		 ndErrmsg("NG: The target was $s/$c")."</A><BR>");
    }
    $title{$idx}="<TD>$msg</TD><TD>exp:$exp/$explla</TD><TD>result:$s/$c</TD>";
    $idx++;
}
$idx--;

#
#
#
@col=('PTN', 'EXP(State/Cached LLA)', 'RESULT(State/Cached LLA)');
ndPrintSummaryHTML("*** Test Summary: No Neighbor Cache Entry vs. NS ***", @col,
                   %title, %result, $idx);

#
#
#
vLogHTML("*** EOT ***<BR>");
exit $exit_rtn;

#
#
#
sub checkState(\@) {
    my($def)=@_;
    my($ptn)=@$def[$idx_ptn];
    my($lla)=@$def[$idx_lla];
    my($exp)=@$def[$idx_exp];
    my($msg)=@$def[$idx_msg];

    my($inc_ip)=@$def[$idx_inc_ip];
    my($prb_ip)=@$def[$idx_prb_ip];
    my($rpy_ip)=@$def[$idx_rpy_ip];
    my($ign_ip)=@$def[$idx_ign_ip];

    my($non_n)=@$def[$idx_non_n];
    my($rpy_n)=@$def[$idx_rpy_n];
    my($ign_n)=@$def[$idx_ign_n];

    my($stl_sr)=@$def[$idx_stl_sr];
    my($ign_sr)=@$def[$idx_ign_sr];

    vLogHTML("<FONT SIZE=\"+1\">Initialization</FONT><BR>");
    goto error if nd2NoNce($IF) != 0;
    vClear($IF);

    vLogHTML("<FONT SIZE=\"+1\">Test</FONT><BR>");
    $pktdesc{$ptn}="Send $msg";
    my(%ret)=vSend($IF, $ptn);
    my($s)=ndStatusNum2Str(ndStatus(
                                    $IF, $ret{sentTime1},
                                    @$inc_ip, @$prb_ip, @$rpy_ip, @$ign_ip,
                                    @$non_n, @$rpy_n, @$ign_n,
                                    @$stl_sr, @$ign_sr,
                                    )
                       );
    return $s;

error:
    return("ERROR");
}

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

=head1 NAME

ncStateByNs4Nonce - Verifying State Machine: NS vs. No Neighbor Cache Entry

=head1 TARGET

Host and Router

=head1 SYNOPSIS

  ncStateByNs4Nonce.seq [-tooloption ...] -p ncStateByNs4Nonce.def

=head1 INITIALIZATION

  Clear a neighbor cache entry for TN.

=head1 TEST PROCEDURE

B<ncStateByNs4Nonce> verifies that neighbor cache state transition for TN
when receiving a NS.

=begin html
<PRE>
  TN                 NUT
  ----------------------
<BR>
  State: No Neighbor Cache Entry (for TN)
<BR>
  ==== <A HREF="#JDG1">NS</A> ===>
        src=TN's link-local
        dst=NUT's link-local or solicited-node[NUT's link-local]
        w/o or w/ SLLA
<BR>
  <A HREF="#JDG1">Judgment</A>: <A HREF="nd.html">Examining NUT's neighbor cache state</A>
</PRE>

=end html

=head1 JUDGMENT

=begin html
<A NAME="JDG1"></A>
<PRE>
  ===============================+==========+=========+=================
  NS                             |New State |LLA       Comments
  ---------+-----------+---------+          |
  Source IP|Destination|SLLA     |          |
           |IP         |         |          |
  =========+===========+=========+==========+=========+=================
  TN's      Unicast     exist     STALE      updated
  link
  ---------+-----------+---------+----------+---------+-----------------
  TN's      Multicast   exist     STALE      updated
  link
  =========+===========+=========+==========+=========+=================
</PRE>

=end html

=head1 TERMINATION

  N/A

=head1 NOTE

  The test does not invoke any remote command.

=head1 REFERENCE

=begin html
<pre>
RFC2461
<hr>
7.2.3.  Receipt of Neighbor Solicitations<br>
   A valid Neighbor Solicitation that does not meet any the following
   requirements MUST be silently discarded:<br>
    - The Target Address is a "valid" unicast or anycast address
      assigned to the receiving interface [ADDRCONF],<br>
    - The Target Address is a unicast address for which the node is
      offering proxy service, or<br>
    - The Target Address is a "tentative" address on which Duplicate
      Address Detection is being performed [ADDRCONF].<br>
   If the Target Address is tentative, the Neighbor Solicitation should
   be processed as described in [ADDRCONF].  Otherwise, the following
   description applies.  If the Source Address is not the unspecified
   address and, on link layers that have addresses, the solicitation
   includes a Source Link-Layer Address option, then the recipient
   SHOULD create or update the Neighbor Cache entry for the IP Source
   Address of the solicitation.  <B>If an entry does not already exist, the
   node SHOULD create a new one and set its reachability state to STALE
   as specified in Section 7.3.3.</B>  If an entry already exists, and the
   cached link-layer address differs from the one in the received Source
   Link-Layer option, the cached address should be replaced by the
   received address and the entry's reachability state MUST be set to
   STALE.
</pre>

=end html

=head1 SEE ALSO

  perldoc V6evalTool
  perldoc V6evalRemote

=cut