/******************************************************************************
** Copyright (C) 2006-2007 ascolab GmbH. All Rights Reserved.
** Web: http://www.ascolab.com
**
** This program is free software; you can redistribute it and/or
** modify it under the terms of the GNU General Public License
** as published by the Free Software Foundation; either version 2
** of the License, or (at your option) any later version.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** Project: OpcUa Wireshark Plugin
**
** Description: OpcUa Security Layer Decoder.
**
** Author: Gerhard Gappmeier <gerhard.gappmeier@ascolab.com>
******************************************************************************/

#include "config.h"

#include <epan/packet.h>
#include "opcua_security_layer.h"

static int hf_opcua_security_tokenid = -1;
static int hf_opcua_security_seq = -1;
static int hf_opcua_security_rqid = -1;

/** Register security layer types. */
void registerSecurityLayerTypes(int proto)
{
    static hf_register_info hf[] =
    {
        /* id                           full name                   abbreviation              type       display   strings bitmask blurb HFILL */
        {&hf_opcua_security_tokenid,   {"Security Token Id",        "opcua.security.tokenid", FT_UINT32, BASE_DEC, NULL,   0x0,    NULL, HFILL}},
        {&hf_opcua_security_seq,       {"Security Sequence Number", "opcua.security.seq",     FT_UINT32, BASE_DEC, NULL,   0x0,    NULL, HFILL}},
        {&hf_opcua_security_rqid,      {"Security RequestId",       "opcua.security.rqid",    FT_UINT32, BASE_DEC, NULL,   0x0,    NULL, HFILL}}
    };
    proto_register_field_array(proto, hf, array_length(hf));
}

/* Security Layer: message parsers
 * Only works for Security Policy "NoSecurity" at the moment.
 */
void parseSecurityLayer(proto_tree *tree, tvbuff_t *tvb, gint *pOffset)
{
    proto_tree_add_item(tree, hf_opcua_security_tokenid, tvb, *pOffset, 4, ENC_LITTLE_ENDIAN); *pOffset+=4;
    proto_tree_add_item(tree, hf_opcua_security_seq, tvb, *pOffset, 4, ENC_LITTLE_ENDIAN); *pOffset+=4;
    proto_tree_add_item(tree, hf_opcua_security_rqid, tvb, *pOffset, 4, ENC_LITTLE_ENDIAN); *pOffset+=4;
}

/*
 * Editor modelines  -  http://www.wireshark.org/tools/modelines.html
 *
 * Local variables:
 * c-basic-offset: 4
 * tab-width: 8
 * indent-tabs-mode: nil
 * End:
 *
 * vi: set shiftwidth=4 tabstop=8 expandtab:
 * :indentSize=4:tabSize=8:noTabs=true:
 */