/*
 ******************************************************************************
 *                     INTERPEAK API HEADER FILE
 *
 *   Document no: @(#) $Name: VXWORKS_ITER40_2019102207 $ $RCSfile: ipdhcps6_duid.h,v $ $Revision: 1.4 $
 *   $Source: /home/interpeak/CVSRoot/ipdhcps6/include/ipdhcps6_duid.h,v $
 *   $Author: kenneth $ $Date: 2004-05-27 11:15:01 $
 *   $State: Exp $ $Locker:  $
 *
 *   INTERPEAK_COPYRIGHT_STRING
 *     Design and implementation by Kenneth Jonsson <kenneth@interpeak.se>
 ******************************************************************************
 */
#ifndef IPDHCPS6_DUID_H
#define IPDHCPS6_DUID_H

/*
 ****************************************************************************
 * 1                    DESCRIPTION
 ****************************************************************************
 */

/*
 ****************************************************************************
 * 2                    CONFIGURATION
 ****************************************************************************
 */

#include "ipdhcps6_config.h"


/*
 ****************************************************************************
 * 3                    INCLUDE FILES
 ****************************************************************************
 */

#include <ipcom_type.h>
#include <ipcom_cstyle.h>

#ifdef __cplusplus
extern "C" {
#endif

/*
 ****************************************************************************
 * 4                    DEFINES
 ****************************************************************************
 */

/* Link-layer address plus time */
#define IPDHCPS6_DUID_LLT   1
/* Vendor-assigned unique ID based on Enterprise Number */
#define IPDHCPS6_DUID_EN    2
/* Link-layer address */
#define IPDHCPS6_DUID_LL    3

/*
 ****************************************************************************
 * 5                    TYPES
 ****************************************************************************
 */

/* Generic format for DHCP Unique IDentification */
struct Ipdhcps6_duid_generic
{
    /* The type of DUID this is */
    Ip_u16  content;
    Ip_u8   data[1];
};


/* DUID Based on Link-layer Address Plus Time */
struct Ipdhcps6_duid_llt_data
{
    /* Content is always IPDHCPS6_DUID_LLT for this type */
    Ip_u16  content;
    /* Link layer hardware type */
    Ip_u16  hardware_type;
    /* Time when this DUID was created */
    Ip_u32  time;
    /* Link layer address from one of the interfaces (variable length) */
    Ip_u8   link_addr[6];
};


/* DUID Assigned by Vendor Based on Enterprise Number */
struct Ipdhcps6_duid_en_data
{
    /* Content is always IPDHCPS6_DUID_EN for this type */
    Ip_u16  content;
    /* Vendor's registered Private Enterprise Number as maintained by IANA  */
    Ip_u16  enterprise_number_1;
    Ip_u16  enterprise_number_2;
    /* Vendor specified ID (variable length) */
    Ip_u8   id[1];
};


/* DUID Based on Link-layer Address */
struct Ipdhcps6_duid_ll_data
{
    /* Content is always IPDHCPS6_DUID_LL for this type */
    Ip_u16  content;
    /* Link layer hardware type */
    Ip_u16  hardware_type;
    /* Link layer address from one of the interfaces (variable length) */
    Ip_u8   link_addr[6];
};


union Ipdhcps6_duid_data
{
    struct Ipdhcps6_duid_generic    generic;
    struct Ipdhcps6_duid_llt_data   llt;
    struct Ipdhcps6_duid_en_data    en;
    struct Ipdhcps6_duid_ll_data    ll;
};


typedef struct Ipdhcps6_duid_struct
{
    /* The length of DUID data */
    Ip_u16  len;
    union Ipdhcps6_duid_data    data;
}
Ipdhcps6_duid;

/*
 ****************************************************************************
 * 6                    FUNCTIONS
 ****************************************************************************
 */

IP_GLOBAL Ip_err ipdhcps6_duid_initialize(void);

#ifdef __cplusplus
}
#endif

#endif

/*
 ****************************************************************************
 *                      END OF FILE
 ****************************************************************************
 */