wireshark/plugins/opcua/opcua_security_layer.c

73 lines
2.4 KiB
C

/******************************************************************************
** $Id$
**
** 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>
** Last change by: $Author: gergap $
**
******************************************************************************/
#include "config.h"
#include <glib.h>
#include <epan/packet.h>
#include "opcua_application_layer.h"
#include "opcua_simpletypes.h"
/** NodeClass enum table */
static const value_string g_SecSigTable[] = {
{ 0, "GetSecurityPolcies" },
{ 1, "OpenSecureChannel" },
{ 2, "CloseSecureChannel" },
{ 3, "Message" },
{ 0, NULL }
};
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[] =
{
{ &hf_opcua_security_tokenid,
{ "Security Token Id", "security.tokenid", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }
},
{ &hf_opcua_security_seq,
{ "Security Sequence Number", "security.seq", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }
},
{ &hf_opcua_security_rqid,
{ "Security RequestId", "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;
}