#!/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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# $Id: IKEv2-SGW-R-2-1-2-1-A.seq,v 1.4 2008/11/28 10:16:29 doo Exp $
#
################################################################



BEGIN
{
	push(@INC, '..');
}

END { }



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

my @local_ike_auth_req = undef;
my @local_ike_auth_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', 'EN')) {
	IKEv2exitFatal('<FONT COLOR="#ff0000">IKEv2 module initializing failure</FONT>');
}



#---------------------------------#
# switch Support or Not Support   #
#---------------------------------#
unless ($config_pl->{'advanced_support_cfg_payload'}) {
	IKEv2exitNS('Not support ' . "'advanced_support_cfg_payload'");
}



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



#------------------------------#
# 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>');
}



#-----------------------------------------------------#
# prepare IKE_AUTH Request (w/ Configuration Payload) #
#-----------------------------------------------------#
my $cp_cfg_request =
{       # CP Payload
	'self'          => 'CP',        # *** MUST BE HERE ***
	'nexttype'	=> undef,	# Next Payload
	'critical'	=> undef,	# Critical
	'reserved'	=> undef,	# RESERVED
	'length'	=> undef,	# Payload Length
	'cfg_type'	=> 'CFG_REQUEST',  # CFG Type
	'reserved1'	=> undef,	# RESERVED
	'attributes'	=> [		# Configuration Attributes
	]
};
my $common_ike_auth_req = $gen_ike_auth_req->{'common_remote_index'};
@local_ike_auth_req = @{$common_ike_auth_req};
for (my $i = 0; $i < scalar(@local_ike_auth_req); $i++) {
        if ($local_ike_auth_req[$i]->{'self'} eq 'SA') {
                splice(@local_ike_auth_req, $i, 0, $cp_cfg_request);
                last;
        }
}
$gen_ike_auth_req->{'SGW-R-2-1-2-1.1'} = \@local_ike_auth_req;



#--------------------------------------#
# 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, CP(CFG_REQUEST), 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-2-1-2-1.1',
                                                       $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>');
}



#------------------------------------------------------#
# prepare IKE_AUTH Response (w/ Configuration Payload) #        ********* Is it defined on koi ????? *********
#------------------------------------------------------#
my $cp_cfg_reply =
{       # CP Payload
        'self'          => 'CP',         # *** MUST BE HERE ***
        'nexttype'      => undef,        # Next Payload
        'critical'      => '0',          # Critical
        'reserved'      => '0',          # RESERVED
        'length'        => undef,        # Payload Length          *********** How many value of length .... *********
        'cfg_type'       => 'CFG_REPLY',  # CFG Type
        'reserved1'     => '0',          # RESERVED
        'attributes'    => [             # Configuration Attributes
        ]
};
my $common_exp_ike_auth_resp = $exp_ike_auth_resp->{'SGW_R_IKE_AUTH_RESP'};
my @local_ike_auth_resp = @{$common_exp_ike_auth_resp};
# add Configuration Payload
foreach my $payload (@local_ike_auth_resp) {
	if ($payload->{'self'} eq 'E') {
                my $inner = $payload->{'innerPayloads'};

		for (my $j = 0; $j < scalar(@{$inner}); $j++) {
			if (@{$inner}[$j]->{'self'} eq 'SA') {
				splice(@{$inner}, $j, 0, $cp_cfg_reply);
				last;
			}
		}
	}
}
# 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-2-1-2-1.2'} = \@local_ike_auth_resp;



#--------------------------------------#
# 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, CP(CFG_REPLY), 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-2-1-2-1.2',
							    $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();
}



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



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

=head1 Title

  Test IKEv2.SGW.R.2.1.2.1: Receipt of CFG_REQUEST
  Part A: (ADVANCED)

=head1 Purpose

  To verify an IKEv2 device transmits IKE_AUTH request using properly eader and
  Configuration Payload format

=head1 References

  * [RFC 4306] - Sections 3.15

=head1 Test Setup

  * Network Topology
      Connect the devices according to the following topology.

=begin html

<BLOCKQUOTE>
<PRE>

   TH1
  (Host)
    |
----+-------+--- Link B (Prefix B, MTU=1500)
            |
           NUT 
          (SGW)
            |
----+-------+--- Link A (Prefix A, MTU=1500)
    |
   TR1
 (Router)
    |
----+-------+--- Link X (Prefix X, MTU=1500)
            |
           TH1
        (End-Node)
<br>
Prefix A = 2001:0db8:0001:0001::/64
Prefix B = 2001:0db8:0001:0002::/64
Prefix X = 2001:0db8:000f:0001::/64
<br>

<TABLE BORDER>
<TR>
<TD>TH1</TD>
<TD>Host</TD>
<TD>Link B</TD>
<TD>Prefix B::f</TD>
</TR>
<TR>
<TD>NUT</TD>
<TD>SGW</TD>
<TD>Link B</TD>
<TD>Prefix B::any_interface_ID</TD>
</TR>
<TR>
<TD>TR1</TD>
<TD>Router</TD>
<TD>Link A</TD>
<TD>Prefix A::any_interface_ID</TD>
</TR>
<TR>
<TD rowspan="2">TN1</TD>
<TD rowspan="2">End-Node</TD>
<TD rowspan="2">Link X</TD>
<TD>Prefix X::1 (External Address)</TD>
</TR>
<TR>
<TD>Prefix B::1 (Internal Address) (assigned by CP)</TD>
</TR>
</TABLE>

</PRE>
</BLOCKQUOTE>

=end html

  * Configuration
      In each part, configure NUT according to the Common Configuration except the traffic
      selector. Configure NUT to transmit CFG_REPLY for INTERNAL_IP6_ADDRESS.
      Its IPv6 address is Prefix B::1/128. The traffic selector must be configured by the
      following table. NUT must narrow Traffic Selector to the following address range.

=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>TN1<br>(internal address)</TD>
<TD>ANY</TD>
<TD>ANY</TD>
<TD>Link B</TD>
<TD>ANY</TD>
<TD>ANY</TD>
</TR>
<TR>
<TD>Outbound</TD>
<TD>Link B</TD>
<TD>ANY</TD>
<TD>ANY</TD>
<TD>TN1<br>(internal address)</TD>
<TD>ANY</TD>
<TD>ANY</TD>
</TR>
</TABLE>
</BLOCKQUOTE>

=end html

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

=head1 Procedure

=begin html

<BLOCKQUOTE>
<PRE>   
    
   NUT                  TN1
  (SGW)              (End-Node)
    |                    |
    |<-------------------| IKE_SA_INIT request (HDR, SAi1, KEi, Ni)
    |                    | (Packet #1)
    |------------------->| IKE_SA_INIT Response (HDR, SAr1, KEr, Nr)
    |                    | (Judgement #1)
    |                    |
    |<-------------------| IKE_AUTH request (HDR, SK {IDi, AUTH, CP(CFG_REQUEST), SAi2, TSi, TSr})
    |                    | (Packet #2)
    |------------------->| IKE_AUTH Response (HDR, SK {IDi, AUTH, CP(CFG_REPLY), SAr2, TSi, TSr})
    |                    | (Judgement #2)
    |                    |
    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 below</TT></TD>
</TR>
</TABLE>
</BLOCKQUOTE>

<BLOCKQUOTE>
Packet #2: IKE_AUTH request packet
<TABLE BORDER>
<TR>
<TD>IPv6 Header</TD>
<TD colspan="2">Same as Common Packet #5</TD>
</TR>
<TR>
<TD>UDP Header</TD>
<TD colspan="2">Same as Common Packet #5</TD>
</TR>
<TR>
<TD>IKEv2 Header</TD>
<TD colspan="2">Same as Common Packet #5</TD>
</TR>
<TR>
<TD>E Payloa</TD>
<TD colspan="2">Same as Common Packet #5</TD>
</TR>
<TR>
<TD>IDr Payload</TD>
<TD colspan="2">Same as Common Packet #5</TD>
</TR>
<TR>
<TD rowspan="2">AUTH Payload</TD>
<TD>Next Payload</TD>
<TD>47 (CP)</TD>
</TR>
<TR>
<TD colspan="2">Other fields are same as Common Packet #5</TD>
</TR>
<TD rowspan="7">CP Payload</TD>
<TD>Next Payload</TD>
<TD>33 (SA)</TD>
</TR>
<TR>
<TD>Critical</TD>
<TD>0</TD>
</TR>
<TR>
<TD>Reserved</TD>
<TD>0</TD>
</TR>
<TR>
<TD>Payload Length</TD>
<TD>12</TD>
</TR>
<TR>
<TD>CFG Type</TD>
<TD>1 (CFG_REQUEST)</TD>
</TR>
<TR>
<TD>RESERVED</TD>
<TD>0</TD>
</TR>
<TR>
<TD>Configuration Attributes</TD>
<TD>See below</TD>
</TR>
<TR>
<TD>SA Payload</TD>
<TD colspan="2">Same as Common Packet #5</TD>
</TR>
<TR>
<TD rowspan="2">TSi Payload</TD>
<TD colspan="2">Other fields are same as Common Packet #6</TD>
</TR>
<TR>
<TD>Traffic Selectors</TD>
<TD>See below</TD>
</TR>
<TR>
<TD>TSr Payload</TD>
<TD colspan="2">Same as Common Packet #5</TD>
</TR>
</TABLE>
</BLOCKQUOTE>

<BLOCKQUOTE>
<TABLE BORDER>
<TR>
<TD rowspan="3">Configuration Attributes</TD>
<TD>Reserved</TD>
<TD>0</TD>
</TR>
<TR>
<TD>Attribute Type</TD>
<TD>INTERNAL_IP6_ADDRESS</TD>
</TR>
<TR>
<TD>Length</TD>
<TD>0</TD>
</TR>
</TABLE>
</BLOCKQUOTE>

<BLOCKQUOTE>
<TABLE BORDER>
<TR>
<TD rowspan="7">Traffic Selector</TD>
<TD>TS Type</TD>
<TD>8 (IPV6_ADDR_RANGE)</TD>
</TR>
<TR>
<TD>IP Protocol ID</TD>
<TD>0 (any)</TD>
</TR>
<TR>
<TD>Selector Length</TD>
<TD>40</TD>
</TR>
<TR>
<TD>Start Port</TD>
<TD>0</TD>
</TR>
<TR>
<TD>End Port</TD>
<TD>65535</TD>
</TR>
<TR>
<TD>Starting Address</TD>
<TD>::</TD>
</TR>
<TR>
<TD>Ending Address</TD>
<TD>ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff</TD>
</TR>
</TABLE>
</BLOCKQUOTE>

=end html

  Part A: (ADVANCED)
     1. TN1 transmits an IKE_SA_INIT request to NUT.
     2. Observe the messages transmitted on Link A..
     3. TN1 transmits an IKE_SA_INIT request to NUT.
     4. 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 properly formatted AUTH Payload
       containing following values:

=begin html

<BLOCKQUOTE>
<PRE>   
                           1                   2                   3
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      ! Next Payload  !C! RESERVED    !         Payload Length        !
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      !   CFG Type    !                    RESERVED                   !
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      !                                                               !
      ~                   Configuration Attributes                    ~
      !                                                               !
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+<br>
                   Figure 191 Configuration Payload format<br> 
  
      * A Next Payload field set to SA Payload (33).
      * A Critical field set to zero.
      * A RESERVED field set to zero.
      * A Payload Length field set to length of the current payload.
      * A CFG Type field set to CFG_REPLY (2).
      * A RESERVED field set to zero.<br>
</PRE>
</BLOCKQUOTE>

=end html

=begin html

<BLOCKQUOTE>
  A Configuration Attributes field set to following.
<PRE>
<br>
                           1                   2                   3
       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      !R|         Attribute Type      !            Length             |
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
      |                                                               |
      ~                             Value                             ~
      |                                                               |
      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+<br>
                  Figure 192 Configuration Attributes format<br>
 
      Configuration Attribute #1
      * Reserved field is set to zero.
      * Attribute Type field is set to INTERNAL_IP6_ADDRESS (8).
      * Length field is set to 17.
      * Value field is set to Prefix B::1 as IPv6 address and 128 as prefix-length.

</BLOCKQUOTE>

=end html

=head1 Possible Problems

  * none.

=cut

