sysinfo.c File Reference

GSM 04.08 System Information (SI) encoding and decoding. More...

#include <errno.h>
#include <string.h>
#include <stdio.h>
#include <osmocom/core/bitvec.h>
#include <osmocom/core/utils.h>
#include <osmocom/gsm/sysinfo.h>
#include <osmocom/gsm/protocol/gsm_04_08.h>
#include <osmocom/gsm/protocol/gsm_08_58.h>

Functions
	osmo_static_assert (sizeof(struct gsm48_system_information_type_header)==3, _si_header_size)
	osmo_static_assert (sizeof(struct gsm48_rach_control)==3, _si_rach_control)
	osmo_static_assert (sizeof(struct gsm48_system_information_type_1)==22, _si1_size)
	osmo_static_assert (sizeof(struct gsm48_system_information_type_2)==23, _si2_size)
	osmo_static_assert (sizeof(struct gsm48_system_information_type_3)==19, _si3_size)
	osmo_static_assert (sizeof(struct gsm48_system_information_type_4)==13, _si4_size)
	osmo_static_assert (sizeof(struct gsm48_system_information_type_5)==18, _si5_size)
	osmo_static_assert (sizeof(struct gsm48_system_information_type_6)==11, _si6_size)
	osmo_static_assert (sizeof(struct gsm48_system_information_type_10)==1, _si10_size)
	osmo_static_assert (sizeof(struct gsm48_system_information_type_13)==3, _si13_size)
int	osmo_earfcn_add (struct osmo_earfcn_si2q *e, uint16_t arfcn, uint8_t meas_bw)
	Add pair of arfcn and measurement bandwith value to earfcn struct.
size_t	osmo_earfcn_bit_size (const struct osmo_earfcn_si2q *e)
	Return number of bits necessary to represent earfcn struct as Repeated E-UTRAN Neighbour Cells IE from 3GPP TS 44.018 Table 10.5.2.33b.1.
size_t	osmo_earfcn_bit_size_ext (const struct osmo_earfcn_si2q *e, size_t offset)
	Return number of bits necessary to represent earfcn struct as Repeated E-UTRAN Neighbour Cells IE from 3GPP TS 44.018 Table 10.5.2.33b.1.
int	osmo_earfcn_del (struct osmo_earfcn_si2q *e, uint16_t arfcn)
	Delete arfcn (and corresponding measurement bandwith) from earfcn struct.
void	osmo_earfcn_init (struct osmo_earfcn_si2q *e)
	Initialize earfcn struct.
uint8_t	osmo_sitype2rsl (enum osmo_sysinfo_type si_type)
enum osmo_sysinfo_type	osmo_rsl2sitype (uint8_t rsl_si)

Variables
static const uint8_t	sitype2rsl [_MAX_SYSINFO_TYPE]
static const uint8_t	rsl2sitype [256]
const struct value_string	osmo_sitype_strs [_MAX_SYSINFO_TYPE]

Detailed Description

GSM 04.08 System Information (SI) encoding and decoding.

3GPP TS 04.08 version 7.21.0 Release 1998 / ETSI TS 100 940 V7.21.0

Function Documentation

osmo_earfcn_add()

int osmo_earfcn_add	(	struct osmo_earfcn_si2q *	e,
		uint16_t	arfcn,
		uint8_t	meas_bw
	)

Add pair of arfcn and measurement bandwith value to earfcn struct.

Parameters

[in,out]	e	earfcn struct
[in]	arfcn	EARFCN value, 16 bits
[in]	meas_bw	measurement bandwith value

Returns

0 on success, error otherwise

References arfcn, len, and OSMO_EARFCN_INVALID.

osmo_earfcn_bit_size()

size_t osmo_earfcn_bit_size

(

const struct osmo_earfcn_si2q *

e

)

Return number of bits necessary to represent earfcn struct as Repeated E-UTRAN Neighbour Cells IE from 3GPP TS 44.018 Table 10.5.2.33b.1.

Parameters

[in,out]

e

earfcn struct

Returns

number of bits

References len, and osmo_earfcn_bit_size_ext().

osmo_earfcn_bit_size_ext()

size_t osmo_earfcn_bit_size_ext	(	const struct osmo_earfcn_si2q *	e,
		size_t	offset
	)

Return number of bits necessary to represent earfcn struct as Repeated E-UTRAN Neighbour Cells IE from 3GPP TS 44.018 Table 10.5.2.33b.1.

Parameters

[in,out]	e	earfcn struct
[in]	offset	into earfcn struct: how many EARFCNs to skip while estimating size

Returns

number of bits

References len, OSMO_EARFCN_INVALID, and OSMO_EARFCN_MEAS_INVALID.

Referenced by osmo_earfcn_bit_size().

osmo_earfcn_del()

int osmo_earfcn_del	(	struct osmo_earfcn_si2q *	e,
		uint16_t	arfcn
	)

Delete arfcn (and corresponding measurement bandwith) from earfcn struct.

Parameters

[in,out]	e	earfcn struct
[in]	arfcn	EARFCN value, 16 bits

Returns

0 on success, error otherwise

References arfcn, len, OSMO_EARFCN_INVALID, and OSMO_EARFCN_MEAS_INVALID.

osmo_earfcn_init()

void osmo_earfcn_init

(

struct osmo_earfcn_si2q *

e

)

Initialize earfcn struct.

Parameters

[in,out]

e

earfcn struct

References len, OSMO_EARFCN_INVALID, and OSMO_EARFCN_MEAS_INVALID.

osmo_rsl2sitype()

enum osmo_sysinfo_type osmo_rsl2sitype

(

uint8_t

rsl_si

)

References len, and rsl2sitype.

osmo_sitype2rsl()

uint8_t osmo_sitype2rsl

(

enum osmo_sysinfo_type

si_type

)

References len, and sitype2rsl.

osmo_static_assert() [1/10]

osmo_static_assert	(	sizeof(struct gsm48_rach_control)	= =3,
		_si_rach_control
	)

References osmo_static_assert().

osmo_static_assert() [2/10]

osmo_static_assert	(	sizeof(struct gsm48_system_information_type_1)	= =22,
		_si1_size
	)

References osmo_static_assert().

osmo_static_assert() [3/10]

osmo_static_assert	(	sizeof(struct gsm48_system_information_type_10)	= =1,
		_si10_size
	)

References osmo_static_assert().

osmo_static_assert() [4/10]

osmo_static_assert	(	sizeof(struct gsm48_system_information_type_13)	= =3,
		_si13_size
	)

References osmo_static_assert().

osmo_static_assert() [5/10]

osmo_static_assert	(	sizeof(struct gsm48_system_information_type_2)	= =23,
		_si2_size
	)

References osmo_static_assert().

osmo_static_assert() [6/10]

osmo_static_assert	(	sizeof(struct gsm48_system_information_type_3)	= =19,
		_si3_size
	)

References osmo_static_assert().

osmo_static_assert() [7/10]

osmo_static_assert	(	sizeof(struct gsm48_system_information_type_4)	= =13,
		_si4_size
	)

References osmo_static_assert().

osmo_static_assert() [8/10]

osmo_static_assert	(	sizeof(struct gsm48_system_information_type_5)	= =18,
		_si5_size
	)

References osmo_static_assert().

osmo_static_assert() [9/10]

osmo_static_assert	(	sizeof(struct gsm48_system_information_type_6)	= =11,
		_si6_size
	)

References osmo_static_assert().

osmo_static_assert() [10/10]

osmo_static_assert	(	sizeof(struct gsm48_system_information_type_header)	= =3,
		_si_header_size
	)

References osmo_static_assert().

Variable Documentation

osmo_sitype_strs

const struct value_string osmo_sitype_strs[_MAX_SYSINFO_TYPE]

Initial value:

= {
        { SYSINFO_TYPE_1,       "1" },
        { SYSINFO_TYPE_2,       "2" },
        { SYSINFO_TYPE_3,       "3" },
        { SYSINFO_TYPE_4,       "4" },
        { SYSINFO_TYPE_5,       "5" },
        { SYSINFO_TYPE_6,       "6" },
        { SYSINFO_TYPE_7,       "7" },
        { SYSINFO_TYPE_8,       "8" },
        { SYSINFO_TYPE_9,       "9" },
        { SYSINFO_TYPE_10,      "10" },
        { SYSINFO_TYPE_13,      "13" },
        { SYSINFO_TYPE_16,      "16" },
        { SYSINFO_TYPE_17,      "17" },
        { SYSINFO_TYPE_18,      "18" },
        { SYSINFO_TYPE_19,      "19" },
        { SYSINFO_TYPE_20,      "20" },
        { SYSINFO_TYPE_2bis,    "2bis" },
        { SYSINFO_TYPE_2ter,    "2ter" },
        { SYSINFO_TYPE_2quater, "2quater" },
        { SYSINFO_TYPE_5bis,    "5bis" },
        { SYSINFO_TYPE_5ter,    "5ter" },
        { SYSINFO_TYPE_EMO,     "EMO" },
        { SYSINFO_TYPE_MEAS_INFO, "MI" },
        { 0, NULL }
}

rsl2sitype

const uint8_t rsl2sitype[256]

static

Initial value:

= {
        [RSL_SYSTEM_INFO_1] = SYSINFO_TYPE_1,
        [RSL_SYSTEM_INFO_2] = SYSINFO_TYPE_2,
        [RSL_SYSTEM_INFO_3] = SYSINFO_TYPE_3,
        [RSL_SYSTEM_INFO_4] = SYSINFO_TYPE_4,
        [RSL_SYSTEM_INFO_5] = SYSINFO_TYPE_5,
        [RSL_SYSTEM_INFO_6] = SYSINFO_TYPE_6,
        [RSL_SYSTEM_INFO_7] = SYSINFO_TYPE_7,
        [RSL_SYSTEM_INFO_8] = SYSINFO_TYPE_8,
        [RSL_SYSTEM_INFO_9] = SYSINFO_TYPE_9,
        [RSL_SYSTEM_INFO_10] = SYSINFO_TYPE_10,
        [RSL_SYSTEM_INFO_13] = SYSINFO_TYPE_13,
        [RSL_SYSTEM_INFO_16] = SYSINFO_TYPE_16,
        [RSL_SYSTEM_INFO_17] = SYSINFO_TYPE_17,
        [RSL_SYSTEM_INFO_18] = SYSINFO_TYPE_18,
        [RSL_SYSTEM_INFO_19] = SYSINFO_TYPE_19,
        [RSL_SYSTEM_INFO_20] = SYSINFO_TYPE_20,
        [RSL_SYSTEM_INFO_2bis] = SYSINFO_TYPE_2bis,
        [RSL_SYSTEM_INFO_2ter] = SYSINFO_TYPE_2ter,
        [RSL_SYSTEM_INFO_2quater] = SYSINFO_TYPE_2quater,
        [RSL_SYSTEM_INFO_5bis] = SYSINFO_TYPE_5bis,
        [RSL_SYSTEM_INFO_5ter] = SYSINFO_TYPE_5ter,
        [RSL_EXT_MEAS_ORDER] = SYSINFO_TYPE_EMO,
        [RSL_MEAS_INFO] = SYSINFO_TYPE_MEAS_INFO,
}

Referenced by osmo_rsl2sitype().

sitype2rsl

const uint8_t sitype2rsl[_MAX_SYSINFO_TYPE]

static

Initial value:

= {
        [SYSINFO_TYPE_1]        = RSL_SYSTEM_INFO_1,
        [SYSINFO_TYPE_2]        = RSL_SYSTEM_INFO_2,
        [SYSINFO_TYPE_3]        = RSL_SYSTEM_INFO_3,
        [SYSINFO_TYPE_4]        = RSL_SYSTEM_INFO_4,
        [SYSINFO_TYPE_5]        = RSL_SYSTEM_INFO_5,
        [SYSINFO_TYPE_6]        = RSL_SYSTEM_INFO_6,
        [SYSINFO_TYPE_7]        = RSL_SYSTEM_INFO_7,
        [SYSINFO_TYPE_8]        = RSL_SYSTEM_INFO_8,
        [SYSINFO_TYPE_9]        = RSL_SYSTEM_INFO_9,
        [SYSINFO_TYPE_10]       = RSL_SYSTEM_INFO_10,
        [SYSINFO_TYPE_13]       = RSL_SYSTEM_INFO_13,
        [SYSINFO_TYPE_16]       = RSL_SYSTEM_INFO_16,
        [SYSINFO_TYPE_17]       = RSL_SYSTEM_INFO_17,
        [SYSINFO_TYPE_18]       = RSL_SYSTEM_INFO_18,
        [SYSINFO_TYPE_19]       = RSL_SYSTEM_INFO_19,
        [SYSINFO_TYPE_20]       = RSL_SYSTEM_INFO_20,
        [SYSINFO_TYPE_2bis]     = RSL_SYSTEM_INFO_2bis,
        [SYSINFO_TYPE_2ter]     = RSL_SYSTEM_INFO_2ter,
        [SYSINFO_TYPE_2quater]  = RSL_SYSTEM_INFO_2quater,
        [SYSINFO_TYPE_5bis]     = RSL_SYSTEM_INFO_5bis,
        [SYSINFO_TYPE_5ter]     = RSL_SYSTEM_INFO_5ter,
        [SYSINFO_TYPE_EMO]      = RSL_EXT_MEAS_ORDER,
        [SYSINFO_TYPE_MEAS_INFO]= RSL_MEAS_INFO,
}

Referenced by osmo_sitype2rsl().