/*
* ============================================================================
* Name : ./accesssec/eapol/eapol_framework/wapi_common/include/ec_cs_tlv_header.h
* Part of : WAPI / WAPI *** Info from the SWAD
* Description : WAPI authentication
* Version : %version: 12 % << Don't touch! Updated by Synergy at check-out.
*
* Copyright © 2001-2009 Nokia. All rights reserved.
* This material, including documentation and any related computer
* programs, is protected by copyright controlled by Nokia. All
* rights are reserved. Copying, including reproducing, storing,
* adapting or translating, any or all of this material requires the
* prior written consent of Nokia. This material also contains
* confidential information which may not be disclosed to others
* without the prior written consent of Nokia.
* ============================================================================
* Template version: 4.2
*/
#if !defined(_EC_CS_TLV_HEADER_H_)
#define _EC_CS_TLV_HEADER_H_
#if defined(USE_WAPI_CORE)
#include "eap_tools.h"
#include "eap_general_header_base.h"
#include "ec_cs_types.h"
/** @file */
//----------------------------------------------------------------------------
/// This class defines header of Attribute-Value Pairs.
/**
* Here is a figure of header of Attribute-Value Pairs.
* Value data follows ec_cs_tlv_header_c.
* @code
* TLV-header:
* 0 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
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Type | Length |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Value...
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* @endcode
*
* @code
* The fields of this header are:
* 16-bits Type; This is a TLV type.
* 16-bits value length (Length); This is a length field, the length (in bytes) of the following value.
* @endcode
*
* For details see <a href="../../../internal/doc/WAPI/WAPI_design.doc">WAPI_design.doc</a>.
*/
class EAP_EXPORT ec_cs_tlv_header_c
: public eap_general_header_base_c
{
private:
//--------------------------------------------------
/// This is pointer to the tools class.
abs_eap_am_tools_c * const m_am_tools;
//--------------------------------------------------
protected:
//--------------------------------------------------
/// This is enumeration of offsets to data fields.
enum sizes
{
m_type_size = sizeof(u16_t), ///< This is size of type 16-bit field.
m_length_size = sizeof(u16_t), ///< This is size of length 16-bit field.
};
/// This is enumeration of offsets to data fields.
enum offsets
{
m_type_offset = 0ul, ///< This is offset to type 16-bit field.
m_length_offset = m_type_offset+m_type_size, ///< This is offset to length 16-bit field.
m_data_offset = m_length_offset+m_length_size, ///< This is offset to data field.
};
//--------------------------------------------------
public:
//--------------------------------------------------
/**
* The destructor of the ec_cs_tlv_header_c class does nothing.
*/
virtual ~ec_cs_tlv_header_c();
/**
* The constructor of the ec_cs_tlv_header_c class simply initializes the attributes.
*/
ec_cs_tlv_header_c(
abs_eap_am_tools_c * const tools,
void * const header_begin,
const u32_t header_buffer_length);
/**
* This function returns the TLV Type.
*/
ec_cs_tlv_type_e get_type() const;
/**
* This function returns the data length of TLV.
*/
u32_t get_data_length() const;
/**
* This function returns the header length of TLV.
*/
static u32_t get_header_length();
/**
* This function returns pointer to the offset of data of TLV.
* @param offset is the offset of queried data in bytes.
* @param contignuous_bytes is the length of queried data in bytes.
*/
u8_t * get_data_offset(const u32_t offset, const u32_t contignuous_bytes) const;
/**
* This function returns pointer to the offset of data of TLV.
* @param contignuous_bytes is the length of queried data in bytes.
*/
u8_t * get_data(const u32_t contignuous_bytes) const;
/**
* This function return pointer to the next TLV header in the same buffer.
*/
u8_t * get_next_header() const;
/**
* This function checks the header is valid.
*/
eap_status_e check_header() const;
/**
* This function returns debug strings of the TLV type.
*/
static eap_const_string get_tlv_string(const ec_cs_tlv_type_e type);
/**
* This function returns debug strings of the TLV type.
*/
eap_const_string get_tlv_string() const;
/**
* This function sets the TLV Type.
*/
eap_status_e set_type(const ec_cs_tlv_type_e type);
/**
* This function sets the TLV data length.
*/
eap_status_e set_data_length(const u32_t p_length);
/**
* This function resets the TLV header.
*/
eap_status_e reset_header();
/**
* This function resets the TLV header object.
*/
eap_status_e reset();
//
//--------------------------------------------------
}; // class ec_cs_tlv_header_c
//----------------------------------------------------------------------------------
/// Macro traces payload type and data.
#define EC_CS_TLV_TRACE_PAYLOAD(prefix, payload, when_true_is_client) \
{ \
EAP_TRACE_DEBUG( \
m_am_tools, TRACE_FLAGS_DEFAULT|TRACE_TEST_VECTORS, \
(EAPL("v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v v \n"))); \
if ((payload) != 0 && (payload)->get_is_valid() == true) \
{ \
EAP_TRACE_DATA_DEBUG(m_am_tools, TRACE_FLAGS_DEFAULT|TRACE_TEST_VECTORS, \
(EAPL("- buffer"), (payload)->get_header_buffer((payload)->get_header_buffer_length()), \
(payload)->get_header_buffer_length())); \
EAP_TRACE_DEBUG( \
m_am_tools, TRACE_FLAGS_DEFAULT|TRACE_TEST_VECTORS, \
(EAPL("- %s %s (0x%08x): TLV type 0x%04x=%s, data length 0x%04x.\n"), \
prefix, \
((when_true_is_client) == true ? "client" : "server"), \
(payload)->get_header_buffer((payload)->get_data_length()), \
(payload)->get_type(), \
(payload)->get_tlv_string(), \
(payload)->get_data_length())); \
EAP_TRACE_DATA_DEBUG(m_am_tools, TRACE_FLAGS_DEFAULT|TRACE_TEST_VECTORS, \
((payload)->get_tlv_string(), (payload)->get_data((payload)->get_data_length()), \
(payload)->get_data_length())); \
} \
else \
{ \
EAP_TRACE_DEBUG( \
m_am_tools, TRACE_FLAGS_DEFAULT|TRACE_TEST_VECTORS, \
(EAPL("payload=0x%08x is illegal.\n"), payload)); \
} \
EAP_TRACE_DEBUG( \
m_am_tools, TRACE_FLAGS_DEFAULT|TRACE_TEST_VECTORS, \
(EAPL("^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ \n"))); \
}
//----------------------------------------------------------------------------------
#endif //#if defined(USE_WAPI_CORE)
#endif //#if !defined(_EC_CS_TLV_HEADER_H_)
// End.