#!/usr/bin/perl
#
# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
# Yokogawa Electric Corporation.
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#    which is related to this software (hereinafter referred to as
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# 4. No merchantable use may be permitted without prior written
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# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# $Id: IKEv2-SGW-R-1-1-7-1-A.seq,v 1.3 2008/11/28 10:16:29 doo Exp $
#
################################################################



BEGIN
{
	push(@INC, '..');
        $ENV{'V6EVAL_WITH_KOI'} = 'TRUE';
}

END { }



use V6evalTool;
use IKEv2v6eval;
use IKEv2;
use strict;



my $remote	= 'common_remote_index';
my $ike_sa_init_req_param	= undef;
my $ike_sa_init_resp_param	= undef;
my $ike_auth_req_param	= undef;
my $ike_auth_resp_param	= undef;
my $create_child_sa_req_param = undef;
my $create_child_sa_resp_param = undef;

my $session	= undef;
my $material	= undef;
my $child_sa_material_1	= undef;
my $str	= undef;
my $ret	= undef;

my @local_create_child_sa_req = undef;
my @local_create_child_sa_resp = undef;


#--------------------------------------#
# prepare IKE_AUTH request             #
#--------------------------------------#
my $common_gen_ike_auth_req = $gen_ike_auth_req->{'common_remote_index'};
my @local_ike_auth_req = @{$common_gen_ike_auth_req};
# remove N(USE_TRANSPORT_MODE)
@local_ike_auth_req = grep {
                my $ret = 0;
                if ($_->{'self'} ne 'N') { $ret = 1; }
                if ($_->{'type'} ne 'USE_TRANSPORT_MODE') { $ret = 1; }
                $ret;
        } @local_ike_auth_req;
                                
$gen_ike_auth_req->{'SGW_R_IKE_AUTH_REQ'} = \@local_ike_auth_req;



#--------------------------------------#
# prepare IKE_AUTH response            #
#--------------------------------------#
my $common_exp_ike_auth_resp = $exp_ike_auth_resp->{'common_remote_index'};
my @local_ike_auth_resp = @{$common_exp_ike_auth_resp};
# remove N(USE_TRANSPORT_MODE)
foreach my $payload (@local_ike_auth_resp) {
        if ($payload->{'self'} eq 'E') {
                my @payloads = grep {
                                my $ret = 0;
                                if ($_->{'self'} ne 'N') { $ret = 1; }
                                if ($_->{'type'} ne 'USE_TRANSPORT_MODE') { $ret = 1; }
                                $ret;
                        } @{$payload->{'innerPayloads'}};

                $payload->{'innerPayloads'} = \@payloads;
        }
}
# set correct nexttype
for (my $i = 0; $i < scalar(@local_ike_auth_resp); $i++) {
        my $payload = $local_ike_auth_resp[$i];

        if ($payload->{'self'} eq 'E') {
                for (my $j = 0; $j < scalar(@{$payload->{'innerPayloads'}}); $j++) {
                        my $cur = $payload->{'innerPayloads'}->[$j];
                        my $next = $payload->{'innerPayloads'}->[$j+1];
                        unless (defined($next)) {
                                $cur->{'nexttype'} = '0';
                                next;
                        }
                        if ($cur->{'nexttype'} eq $next->{'self'}) {
                                next;
                        }
                        $cur->{'nexttype'} = $next->{'self'};
                }

                next;
        }

}
$exp_ike_auth_resp->{'SGW_R_IKE_AUTH_RESP'} = \@local_ike_auth_resp;



#------------------------------#
# register IKEv2.pm            #
#------------------------------#
kLogHTML('<FONT COLOR="#FF0000" SIZE="+1"><U><B>TEST SETUP</B></U></FONT>');



unless(IKEv2initialize('SGW', 'SGW')) {
	IKEv2exitFatal('<FONT COLOR="#ff0000">IKEv2 module initializing failure</FONT>');
}



#------------------------------#
# change configuration         #
#------------------------------#
my $conf = {
	'selector.0.dst' => {
		'address'	=> $config_pl->{'ikev2_prefix3'} . '::/64',
	},
	'selector.1.src' => {
		'address'	=> $config_pl->{'ikev2_prefix3'} . '::/64',
	},
};
unless (IKEv2customize($conf)) {
	IKEv2exitFatal('<FONT COLOR="#ff0000">IKEv2 configuration failure</FONT>');
}



#------------------------------#
# configure TN                 #
#------------------------------#
unless(IKEv2setupTN()) {
	IKEv2exitFatal('<FONT COLOR="#ff0000">TN setup failure</FONT>');
}



#------------------------------#
# change configuration         #
#------------------------------#
my $conf = {
	'selector.0.dst' => {
		'address'	=> $config_pl->{'ikev2_prefix3'} . '::1',
	},
	'selector.1.src' => {
		'address'	=> $config_pl->{'ikev2_prefix3'} . '::1',
	},
};
unless (IKEv2customize($conf)) {
	IKEv2exitFatal('<FONT COLOR="#ff0000">IKEv2 configuration failure</FONT>');
}



#------------------------------#
# load ICMP                    #
#------------------------------#
loadICMP();



#------------------------------#
# configure NUT                #
#------------------------------#
unless(IKEv2setupNUT()) {
	IKEv2exitFatal('<FONT COLOR="#ff0000">NUT setup failure</FONT>');
}



#------------------------------#
# prepare session handler      #
#------------------------------#
kLogHTML('<FONT COLOR="#FF0000" SIZE="+1"><U><B>TEST PROCEDURE</B></U></FONT>');



$session = IKEv2create_session($remote);
unless(defined($session)) {
	IKEv2exitFatal('<FONT COLOR="#ff0000">IKEv2 session creation failure</FONT>');
}



#--------------------------------------#
# send IKE_SA_INIT request to NUT      #
#--------------------------------------#
$str  = '<PRE>';
$str .= "    (R)             (I)\n";
$str .= "    NUT             TN1\n";
$str .= "     |               |\n";
$str .= "     |<--------------| IKE_SA_INIT request (HDR, SAi1, KEi, Ni)\n";
$str .= "     |               |\n";
$str .= "     V               V";
$str .= '</PRE>';

kLogHTML($str);



$ike_sa_init_req_param = devel_IKEv2send_IKE_SA_INIT_request($session, $remote);
unless(defined($ike_sa_init_req_param)) {
	kLogHTML(kDump_Common_Error());
	IKEv2exitFatal('<FONT COLOR="#ff0000">Can\'t send IKE_SA_INIT request.</FONT>');
}



#--------------------------------------#
# receive IKE_SA_INIT response by NUT  #
#--------------------------------------#
$str  = '<PRE>';
$str .= "    (R)             (I)\n";
$str .= "    NUT             TN1\n";
$str .= "     |               |\n";
$str .= "     |-------------->| IKE_SA_INIT response (HDR, SAr1, KEr, Nr)\n";
$str .= "     |               |\n";
$str .= "     V               V";
$str .= '</PRE>';

kLogHTML($str);



$ike_sa_init_resp_param = devel_IKEv2receive_IKE_SA_INIT_response($session,
							$remote,
							$ike_sa_init_req_param);
unless(defined($ike_sa_init_resp_param)) {
	kLogHTML(kDump_Common_Error());
	kLogHTML('<FONT COLOR="#ff0000">Can\'t observe IKE_SA_INIT response.</FONT>');
	IKEv2exitFail();
}



#--------------------------------------#
# generate keying material             #
#--------------------------------------#
$material = devel_IKEv2gen_keymat(1, $ike_sa_init_req_param, $ike_sa_init_resp_param);
unless(defined($material)) {
	kLogHTML(kDump_Common_Error());
	IKEv2exitFatal('<FONT COLOR="#ff0000">Can\'t generate keying material.</FONT>');
}



#--------------------------------------#
# send IKE_AUTH request to NUT         #
#--------------------------------------#
$str  = '<PRE>';
$str .= "    (R)             (I)\n";
$str .= "    NUT             TN1\n";
$str .= "     |               |\n";
$str .= "     |<--------------| IKE_AUTH request (HDR, SK {IDi, AUTH, SAi2, TSi, TSr})\n";
$str .= "     |               |\n";
$str .= "     V               V";
$str .= '</PRE>';

kLogHTML($str);



$ike_auth_req_param = devel_IKEv2send_IKE_AUTH_request($session,
							'SGW_R_IKE_AUTH_REQ',
							$ike_sa_init_req_param,
							$ike_sa_init_resp_param,
							$material);
unless(defined($ike_auth_req_param)) {
	kLogHTML(kDump_Common_Error());
	IKEv2exitFatal('<FONT COLOR="#ff0000">Can\'t send IKE_AUTH request.</FONT>');
}



#--------------------------------------#
# receive IKE_AUTH response by NUT     #
#--------------------------------------#
$str  = '<PRE>';
$str .= "    (R)             (I)\n";
$str .= "    NUT             TN1\n";
$str .= "     |               |\n";
$str .= "     |-------------->| IKE_AUTH response (HDR, SK {IDr, AUTH, SAr2, TSi, TSr)\n";
$str .= "     |               |\n";
$str .= "     V               V";
$str .= '</PRE>';

kLogHTML($str);



$ike_auth_resp_param = devel_IKEv2receive_IKE_AUTH_response($session,
							'SGW_R_IKE_AUTH_RESP',
							$ike_sa_init_req_param,
							$ike_sa_init_resp_param,
							$ike_auth_req_param,
							$material);
unless(defined($ike_auth_resp_param)) {
	kLogHTML(kDump_Common_Error());
	kLogHTML('<FONT COLOR="#ff0000">Can\'t observe IKE_AUTH response.</FONT>');
	IKEv2exitFail();
}



#--------------------------------------#
# generate keying material (CHILD_SA)  #
#--------------------------------------#
$child_sa_material_1 = devel_IKEv2gen_child_sa_keymat(1,
                                                      $material,
                                                      $ike_sa_init_req_param,
                                                      $ike_sa_init_resp_param,
                                                      $ike_auth_req_param,
                                                      $ike_auth_resp_param,
                                                      undef,
                                                      undef);



#--------------------------------------#
# set keying material                  #
#--------------------------------------#
$ret = IKEv2set_child_sa_keymat(1, $child_sa_material_1, $ike_auth_req_param, $ike_auth_resp_param);
unless($ret) {
	kLogHTML(kDump_Common_Error());
	IKEv2exitFatal('<FONT COLOR="#ff0000">Can\'t set keying material.</FONT>');
}



#--------------------------------------#
# prepare ICMP session handler         #
#--------------------------------------#
my $icmp_session_th3 = ICMPcreate_session('TH3sendtoTH1');
unless(defined($icmp_session_th3)) {
        IKEv2exitFatal('<FONT COLOR="#ff0000">ICMP session creation failure</FONT>');
}

my $icmp_session_th2 = ICMPcreate_session('TH2sendtoTH1');
unless(defined($icmp_session_th2)) {
        IKEv2exitFatal('<FONT COLOR="#ff0000">ICMP session creation failure</FONT>');
}

my $icmp_session_th1 = ICMPcreate_session('TH1sendtoTH2');
unless(defined($icmp_session_th1)) {
        IKEv2exitFatal('<FONT COLOR="#ff0000">ICMP session creation failure</FONT>');
}



#--------------------------------------#
# receive Echo Reply (DUMMY)           #
#--------------------------------------#
$icmp_session_th1->timeout(1);
$ret = ICMPreceive($icmp_session_th1);
$icmp_session_th1->timeout(12);



#--------------------------------------#
# send Echo Reply (TH2-->TH1)          #
#--------------------------------------#
$str  = '<PRE>';
$str .= "                    (R)             (I)\n";
$str .= "    TH1             NUT             TN1             TH2             TH3\n";
$str .= "     |               |               |               |               |\n";
$str .= "     |<--------------+===============+---------------|               | IPsec {Echo Reply}\n";
$str .= "     |               |               |               |               |\n";
$str .= "     V               V               V               V               V";
$str .= '</PRE>';

kLogHTML($str);

$ret = ICMPsend($icmp_session_th2, 'echo_reply');
unless (defined($ret)) {
        kLogHTML(kDump_Common_Error());
        IKEv2exitFatal('<FONT COLOR="#ff0000">Can\'t send ICMP packet.</FONT>');
}



#--------------------------------------#
# receive Echo Reply (TH2-->TH1)       #
#--------------------------------------#
$ret = ICMPreceive($icmp_session_th1);
unless(defined($ret)) {
        my $strerror = kDump_Common_Error();
        kLogHTML('<FONT COLOR="#ff0000">Can\'t observe ICMP packet.</FONT>');
        IKEv2exitFail();
}

#--------------------------------------#
# send Echo Reply (TH1-->TH2)          #
#--------------------------------------#
$str  = '<PRE>';
$str .= "                    (R)             (I)\n";
$str .= "    TH1             NUT             TN1             TH2             TH3\n";
$str .= "     |               |               |               |               |\n";
$str .= "     |---------------+===============+-------------->|               | IPsec {Echo Reply}\n";
$str .= "     |               |               |               |               |\n";
$str .= "     V               V               V               V               V";
$str .= '</PRE>';

kLogHTML($str);

$ret = ICMPsend_v6eval('TH1sendtoTH2', 'echo_reply');
unless (defined($ret)) {
        kLogHTML(kDump_Common_Error());
        IKEv2exitFatal('<FONT COLOR="#ff0000">Can\'t send ICMP packet.</FONT>');
}



#--------------------------------------#
# receive Echo Reply (TH1-->TH2)       #
#--------------------------------------#
$ret = ICMPreceive($icmp_session_th2);
unless(defined($ret)) {
        my $strerror = kDump_Common_Error();
        kLogHTML('<FONT COLOR="#ff0000">Can\'t observe ICMP packet.</FONT>');
        IKEv2exitFail();
}



#--------------------------------------#
# send Echo Reply (TH3-->TH1)          #
#--------------------------------------#
$str  = '<PRE>';
$str .= "                    (R)             (I)\n";
$str .= "    TH1             NUT             TN1             TH2             TH3\n";
$str .= "     |               |               |               |               |\n";
$str .= "     |       X-------+===============+-------------------------------| IPsec {Echo Reply}\n";
$str .= "     |               |               |               |               |\n";
$str .= "     V               V               V               V               V";
$str .= '</PRE>';

kLogHTML($str);

$ret = ICMPsend($icmp_session_th3, 'echo_reply');
unless (defined($ret)) {
        kLogHTML(kDump_Common_Error());
        IKEv2exitFatal('<FONT COLOR="#ff0000">Can\'t send ICMP packet.</FONT>');
}



#--------------------------------------#
# receive Echo Reply (TH3-->TH1)       #
#--------------------------------------#
$ret = ICMPreceive($icmp_session_th1);
if (defined($ret)) {
        my $strerror = kDump_Common_Error();
        kLogHTML('<FONT COLOR="#ff0000">Can observe ICMP packet.</FONT>');
        IKEv2exitFail();
}



#----------------------------------------------------#
# flush SPD to receive unprotected Echo Reply at TH3 #
#----------------------------------------------------#
IKEv2flush_SPD();



#--------------------------------------#
# send Echo Reply (TH1-->TH3)          #
#--------------------------------------#
$str  = '<PRE>';
$str .= "                    (R)             (I)\n";
$str .= "    TH1             NUT             TN1             TH2             TH3\n";
$str .= "     |               |               |               |               |\n";
$str .= "     |-------------------------------------------------------------->| Echo Reply\n";
$str .= "     |               |               |               |               |\n";
$str .= "     V               V               V               V               |";
$str .= '</PRE>';

kLogHTML($str);

$ret = ICMPsend_v6eval('TH1sendtoTH3', 'echo_reply');
unless (defined($ret)) {
        kLogHTML(kDump_Common_Error());
        IKEv2exitFatal('<FONT COLOR="#ff0000">Can\'t send ICMP packet.</FONT>');
}



#--------------------------------------#
# receive Echo Reply (TH1-->TH3)       #
#--------------------------------------#
$ret = ICMPreceive($icmp_session_th3);
unless(defined($ret)) {
        my $strerror = kDump_Common_Error();
        kLogHTML('<FONT COLOR="#ff0000">Can\'t observe ICMP packet.</FONT>');
        IKEv2exitFail();
}



#--------------------------------------#
# exit with cleanup                    #
#--------------------------------------#
IKEv2exitPass();
# NOTREACHED



#
# perldoc
#
########################################################################
__END__

=head1 Title

  Test IKEv2.SGW.R.1.1.7.1: Narrowing Traffic Selectors
  Part A: (BASIC)

=head1 Purpose

  To verify an IKEv2 device allows the responder to choose a subset of the traffic proposed by
  the initiator.

=head1 References

  * [RFC 4306] - Sections 2.8

=head1 Test Setup

  * Network Topology
     Connect the devices according to the Common Topology.
  * Configuration
     In each part, configure the devices according to the Common Configuration except
     Traffic Selector. Traffic Selector should be configured as following.

=begin html

<BLOCKQUOTE>
<TABLE BORDER>
<TR>
<TD rowspan="3"></TD>
<TD colspan="6">Traffic Selector</TD>
</TR>
<TR>
<TD colspan="3">Source</TD>
<TD colspan="3">Destination</TD>
</TR>
<TR>
<TD>Address<br>Range</TD>
<TD>Next Layer<br>Protocol</TD>
<TD>Port<br>Range</TD>
<TD>Address<br>Range</TD>
<TD>Next Layer<br>Protocol</TD>
<TD>Port<br>Range</TD>
</TR>
<TR>
<TD>Inbound</TD>
<TD>TH2</TD>
<TD>ANY</TD>
<TD>ANY</TD>
<TD>ANY</TD>
<TD>ANY</TD>
<TD>ANY</TD>
</TR>
<TR>
<TD>Outbound</TD>
<TD>ANY</TD>
<TD>ANY</TD>
<TD>ANY</TD>
<TD>TH2</TD>
<TD>ANY</TD>
<TD>ANY</TD>
</TR>
</TABLE>
</BLOCKQUOTE>

=end html

     The other packets are allowed to BYPASS IPsec protection.

  * Pre-Sequence and Cleanup Sequence
     IKEv2 on the NUT is disabled after each part.

=head1 Procedure

=begin html

<BLOCKQUOTE>
<PRE>

   TH1            NUT           TN1           TH2           TH3
 (HOST)          (SGW)         (SGW)         (Host)        (Host)
    |              |             |             |             |
    |              |<------------|             |             | IKE_SA_INIT request (HDR, SAi1, KEi, Ni)
    |              |             |             |             | (Judgement #1)
    |              |------------>|             |             | IKE_SA_INIT Response (HDR, SAr1, KEr, Nr)
    |              |             |             |             | (Packet #1)
    |              |             |             |             |
    |              |<------------|             |             | IKE_AUTH request (HDR, SK {IDi, AUTH, SAi2, TSi, TSr})
    |              |             |             |             | (Judgement #2)
    |              |------------>|             |             | IKE_AUTH Response (HDR, SK {IDr, AUTH, SAr2, TSi, TSr})
    |              |             |             |             | (Packet #2)
    |              |             |             |             |
    |<-------------+=============+-------------|             | IPSec {Echo Request}
    |              |             |             |             | (Packet #3) (Judgement #3)
    |--------------+=============+------------>|             | IPSec {Echo Reply}
    |              |             |             |             | (Packet #4) (Judgement #4)
    |              |             |             |             |
    |       X------+=============+-------------+-------------| IPSec {Echo Request}
    |              |             |             |             | (Packet #5) (Judgement #5)
    |--------------+-------------+-------------+------------>| IPSec {Echo Reply}
    |              |             |             |             | (Packet #6) (Judgement #6)
    |              |             |             |             |
    V              V             V             V             V
</PRE>
</BLOCKQUOTE>

<BLOCKQUOTE>
<TABLE BORDER>
<TR>
<TD><TT>Packet #1</TT></TD>
<TD><TT>See Common Packet #1</TT></TD>
</TR>
<TR>
<TD><TT>Packet #2</TT></TD>
<TD><TT>See Common Packet #5</TT></TD>
</TR>
<TR>
<TD><TT>Packet #3</TT></TD>
<TD><TT>See Common Packet #21</TT></TD>
</TR>
<TR>
<TD><TT>Packet #4</TT></TD>
<TD><TT>See Common Packet #25</TT></TD>
</TR>
<TR>
<TD><TT>Packet #5</TT></TD>
<TD><TT>See below</TT></TD>
</TR>
<TR>
<TD><TT>Packet #6</TT></TD>
<TD><TT>See below</TT></TD>
</TR>
</TABLE>
</BLOCKQUOTE>
<br>

<BLOCKQUOTE>
Packet #5: ICMPv6 Echo Request
<TABLE BORDER>
<TR>
<TD>IPv6 Header</TD>
<TD colspan="2">Same as Common Packet #21</TD>
</TR>
<TR>
<TD>ESP</TD>
<TD colspan="2">Same as Common Packet #21</TD>
</TR>
<TR>
<TD rowspan="2">IPv6 Header</TD>
<TD>Source Address</TD>
<TD>TH3's Global Address</TD>
</TR>
<TR>
<TD>Destination Address</TD>
<TD>TH1's Global Address</TD>
</TR>
<TR>
<TD>ICMPv6 Header</TD>
<TD colspan="2">Same as Common Packet #21</TD>
</TR>
</TABLE>
</BLOCKQUOTE>

<BLOCKQUOTE>
Packet #6: ICMPv6 Echo Re
<TABLE BORDER>
<TR>
<TD rowspan="2">IPv6 Header</TD>
<TD>Source Address</TD>
<TD>TH1's Global Address</TD>
</TR>
<TR>
<TD>Destination Address</TD>
<TD>TH3's Global Address</TD>
</TR>
<TR>
<TD>ICMPv6 Header</TD>
<TD colspan="2">Same as Common Packet #25</TD>
</TR>
</TABLE>
</BLOCKQUOTE>

=end html

  Part A (BASIC)
     1. TN1 sends an IKE_SA_INIT request.
     2. Observe the messages transmitted on Link A..
     3. TN1 sends an IKE_SA_INIT request to the NUT.
     4. Observe the messages transmitted on Link A..
     5. TH2 transmits an Echo Request packet to TH1.
     6. Observe the messages transmitted on Link B...
     7. TH1 transmits an Echo Reply packet to TH2.
     8. Observe the messages transmitted on Link A..
     9. TH3 transmits an Echo Request to TH1.
    10. Observe the messages transmitted on Link B...
    11. TH1 transmits an Echo Request to TH3.
    12. Observe the messages transmitted on Link A..

=head1 Observable Result

  Part A
       Step 2: Judgment #1
       The NUT transmits an IKE_SA_INIT response including "ENCR_3DES",
       "PRF_HMAC_SHA1", "AUTH_HMAC_SHA1_96" and "D-H group 2" as proposed
       algorithms.

       Step 4: Judgment #2
       The NUT transmits an IKE_AUTH response including "ENCR_3DES",
       "AUTH_HMAC_SHA1_96" and "No Extended Sequence Numbers" as proposed algorithms.
       The Traffic Selector is narrowed to allow only address range of TH2.

       Step 6: Judgment #3
       The NUT forwards an Echo Request.

       Step 8: Judgment #4
       The NUT forwards an Echo Request with IPsec ESP using corresponding algorithms.

       Step 10: Judgment #5
       The NUT never forwards an Echo Request.

       Step 12: Judgment #6
       The NUT forwards an Echo Request without IPsec ESP.

=head1 Possible Problems

  *  Because the destination address of Echo Request is the TN itself, TN may respond to
     Echo Request automatically. In that case, TH2 can send Echo Reply to TH1 instead of
     sending Echo Request.

=cut


