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/*****************************************************************************
			Eurecom OpenAirInterface 3
			Copyright(c) 2012 Eurecom

Source		commonDef.h

Version		0.1

Date		2012/02/27

Product		NAS stack

Subsystem	include

Author		Frederic Maurel

Description	Contains global common definitions

*****************************************************************************/
#ifndef __COMMONDEF_H__
#define __COMMONDEF_H__

#include <stdint.h>
#include <stddef.h>

/****************************************************************************/
/*********************  G L O B A L    C O N S T A N T S  *******************/
/****************************************************************************/

#define RETURNok		(0)
#define RETURNerror		(-1)

#ifndef FALSE
#define FALSE			(0)
#endif
#ifndef TRUE
#define TRUE			(1)
#endif

/*
 * Name of the environment variable which defines the default directory
 * where the NAS application is executed and where are located files
 * where non-volatile data are stored
 */
#define DEFAULT_NAS_PATH	"PWD"

/****************************************************************************/
/************************  G L O B A L    T Y P E S  ************************/
/****************************************************************************/

/*
-----------------------------------------------------------------------------
			Standard data type definitions
-----------------------------------------------------------------------------
*/
typedef int8_t		SByte_t;	/* 8 bit signed integer		*/
typedef int8_t		Int8_t;		/* 8 bit signed integer		*/
typedef int16_t		Int16_t;	/* 16 bit signed integer	*/
typedef int32_t		Int32_t;	/* 32 bit signed integer	*/
typedef int64_t		Int64_t;	/* 64 bit signed integer	*/


typedef uint8_t		Byte_t;		/* 8 bit unsigned integer	*/
typedef uint8_t		UInt8_t;	/* 8 bit unsigned integer	*/
typedef uint16_t	UInt16_t;	/* 16 bit unsigned integer	*/
typedef uint32_t	UInt32_t;	/* 32 bit unsigned integer	*/
typedef uint64_t	UInt64_t;	/* 64 bit unsigned integer	*/

/*
-----------------------------------------------------------------------------
			Common NAS data type definitions
-----------------------------------------------------------------------------
*/

typedef UInt8_t		Stat_t;		/* Registration status	*/
typedef UInt16_t 	lac_t;		/* Location Area Code	*/
typedef UInt8_t 	rac_t;		/* Routing Area Code	*/
typedef UInt16_t 	tac_t;		/* Tracking Area Code	*/
typedef UInt32_t 	ci_t;		/* Cell Identifier	*/
typedef UInt8_t		AcT_t;		/* Access Technology	*/

/*
 * International Mobile Subscriber Identity
 */
typedef struct {
    Byte_t length;
    union {
	struct {
	    Byte_t digit15:4;
	    Byte_t digit14:4;
	    Byte_t digit13:4;
	    Byte_t digit12:4;
	    Byte_t digit11:4;
	    Byte_t digit10:4;
	    Byte_t digit9:4;
	    Byte_t digit8:4;
	    Byte_t digit7:4;
	    Byte_t digit6:4;
	    Byte_t digit5:4;
	    Byte_t digit4:4;
	    Byte_t digit3:4;
	    Byte_t digit2:4;
	    Byte_t digit1:4;
#define EVEN_PARITY	0
#define ODD_PARITY	1
	    Byte_t parity:4;
	} num;
#define IMSI_SIZE	8
	Byte_t value[IMSI_SIZE];
    } u;
} imsi_t;

/*
 * Mobile subscriber dialing number
 */
typedef struct {
    Byte_t ext:1;
	/* Type Of Number			*/
#define MSISDN_TON_UNKNOWKN		0b000
#define MSISDN_TON_INTERNATIONAL	0b001
#define MSISDN_TON_NATIONAL		0b010
#define MSISDN_TON_NETWORK		0b011
#define MSISDN_TON_SUBCRIBER		0b100
#define MSISDN_TON_ABBREVIATED		0b110
#define MSISDN_TON_RESERVED		0b111
    Byte_t ton:3;
	/* Numbering Plan Identification	*/
#define MSISDN_NPI_UNKNOWN		0b0000
#define MSISDN_NPI_ISDN_TELEPHONY	0b0001
#define MSISDN_NPI_GENERIC		0b0010
#define MSISDN_NPI_DATA			0b0011
#define MSISDN_NPI_TELEX		0b0100
#define MSISDN_NPI_MARITIME_MOBILE	0b0101
#define MSISDN_NPI_LAND_MOBILE		0b0110
#define MSISDN_NPI_ISDN_MOBILE		0b0111
#define MSISDN_NPI_PRIVATE		0b1110
#define MSISDN_NPI_RESERVED		0b1111
    Byte_t npi:4;
	/* Dialing Number			*/
    struct {
	Byte_t lsb:4;
	Byte_t msb:4;
#define MSISDN_DIGIT_SIZE	10
    } digit[MSISDN_DIGIT_SIZE];
} msisdn_t;

/*
 * International Mobile Equipment Identity
 */
typedef imsi_t imei_t;

/*
 * Public Land Mobile Network identifier
 * PLMN = BCD encoding (Mobile Country Code + Mobile Network Code)
 */
typedef struct {
    Byte_t MCCdigit2:4;
    Byte_t MCCdigit1:4;
    Byte_t MNCdigit3:4;
    Byte_t MCCdigit3:4;
    Byte_t MNCdigit2:4;
    Byte_t MNCdigit1:4;
} plmn_t;

/*
 * Location Area Identification
 */
typedef struct {
    plmn_t plmn;	/* <MCC> + <MNC>	*/
    lac_t lac;		/* Location Area Code	*/
} lai_t;

/*
 * GPRS Routing Area Identification
 */
typedef struct {
    plmn_t plmn;	/* <MCC> + <MNC>	*/
    lac_t lac;		/* Location Area Code	*/
    rac_t rac;		/* Routing Area Code	*/
} RAI_t;

/*
 * EPS Tracking Area Identification
 */
typedef struct {
    plmn_t plmn;	/* <MCC> + <MNC>	*/
    tac_t tac;		/* Tracking Area Code	*/
} tai_t;

/*
 * EPS Globally Unique MME Identity
 */
typedef struct {
    plmn_t plmn;	/* <MCC> + <MNC>	*/
    UInt16_t MMEgid;	/* MME group identifier	*/
    UInt8_t MMEcode;	/* MME code		*/
} gummei_t;

/*
 * EPS Globally Unique Temporary UE Identity
 */
typedef struct {
    gummei_t gummei;	/* Globally Unique MME Identity			*/
    UInt32_t m_tmsi;	/* M-Temporary Mobile Subscriber Identity	*/
} GUTI_t;

/* Checks PLMN validity */
#define PLMN_IS_VALID(plmn)	(((plmn).MCCdigit1 &	\
				  (plmn).MCCdigit2 &	\
				  (plmn).MCCdigit3) != 0x0F)

/* Checks TAC validity */
#define TAC_IS_VALID(tac)	(((tac) != 0x0000) && ((tac) != 0xFFF0))

/* Checks TAI validity */
#define TAI_IS_VALID(tai)	(PLMN_IS_VALID((tai).plmn) &&	\
				 TAC_IS_VALID((tai).tac))
/*
 * A list of PLMNs
 */
#define PLMN_LIST_T(SIZE) struct {Byte_t n_plmns; plmn_t plmn[SIZE];}

/*
 * A list of TACs
 */
#define TAC_LIST_T(SIZE) struct {Byte_t n_tacs; TAC_t tac[SIZE];}

/*
 * A list of TAIs
 */
#define TAI_LIST_T(SIZE) struct {Byte_t n_tais; tai_t tai[SIZE];}

/*
 * User notification callback, executed whenever a change of data with
 * respect of network information (e.g. network registration and/or
 * location change, new PLMN becomes available) is notified by the
 * EPS Mobility Management sublayer
 */
typedef int (*indication_callback_t) (Stat_t, tac_t, ci_t, AcT_t, const char*, size_t);

/****************************************************************************/
/********************  G L O B A L    V A R I A B L E S  ********************/
/****************************************************************************/

/****************************************************************************/
/******************  E X P O R T E D    F U N C T I O N S  ******************/
/****************************************************************************/

#endif /* __COMMONDEF_H__*/