Miscellaneous functions. More...

#include <osmocom/core/linuxlist.h>
#include <osmocom/core/talloc.h>
#include <osmocom/core/utils.h>
#include <osmocom/sccp/sccp.h>
#include <freeradius-devel/server/base.h>
#include <freeradius-devel/util/debug.h>
#include "sigtran.h"

Include dependency graph for sigtran.c:

Go to the source code of this file.

Macros
#define	LOG_PREFIX "sigtran"

Functions
int	sigtran_ascii_to_tbcd (TALLOC_CTX ctx, uint8_t out, char const digits)

int	sigtran_sccp_global_title (TALLOC_CTX ctx, uint8_t out, int gt_ind, char const digits, uint8_t tt, uint8_t np, uint8_t es, uint8_t nai)
	Convert a global title to wire format for SCCP. More...

Variables
uint8_t const	ascii_to_tbcd []
	Conversion table to transform ASCII to Telephony Binary Coded Decimal. More...

uint8_t const	is_char_tbcd []
	Check is a char is valid Telephony Binary Coded Decimal. More...

Detailed Description

Miscellaneous functions.

Id: cafc8afafc248b905f541381f8f3d8f34df54597

Definition in file sigtran.c.

Macro Definition Documentation

◆ LOG_PREFIX

#define LOG_PREFIX "sigtran"

Definition at line 33 of file sigtran.c.

Function Documentation

◆ sigtran_ascii_to_tbcd()

int sigtran_ascii_to_tbcd	(	TALLOC_CTX *	ctx,
		uint8_t **	out,
		char const *	digits
	)

Definition at line 93 of file sigtran.c.

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◆ sigtran_sccp_global_title()

int sigtran_sccp_global_title	(	TALLOC_CTX *	ctx,
		uint8_t **	out,
		int	gt_ind,
		char const *	digits,
		uint8_t	tt,
		uint8_t	np,
		uint8_t	es,
		uint8_t	nai
	)

Convert a global title to wire format for SCCP.

Parameters

[in]	ctx	To allocate the buffer in.
[out]	out	Where to write the SCCP global title value.
[in]	gt_ind	One of the SCCP_TITLE_IND_* macros. SCCP_TITLE_IND_NONE - Don't call this function... SCCP_TITLE_IND_NATURE_ONLY - Nature of address indicator only. SCCP_TITLE_IND_TRANSLATION_ONLY - Translation type indicator only. SCCP_TITLE_IND_TRANS_NUM_ENC - Translation type, numbering plan, encoding scheme. SCCP_TITLE_IND_TRANS_NUM_ENC_NATURE - Translation type, numbering plan, encoding scheme, nature of address indicator.
[in]	digits	To convert to BCD (with nibbles reversed).
[in]	tt	Title translation.
[in]	es	Encoding scheme (specify in lower nibble). 0x00 - Unknown 0x01 - BCD odd number of digits. 0x02 - BCD even number of digits. 0x04 - National specific. 0x05 to 0x0e - Spare. 0x0f - Reserved.
[in]	np	Numbering plan (specify in lower nibble, will shift). 0x00 - Unknown. 0x01 - ISDN. 0x02 - Generic numbering plan. 0x03 - Data number plan. 0x04 - Telex number plan. 0x05 - Maritime mobile number plan. 0x06 - Land mobile numbering plan. 0x07 - ISDN/mobile numbering plan. 0x08 to 0x0d - spare. 0x0e - Private or network specific numbering plan. 0x0f - Reserved.
[in]	nai	Nature of address indicator. 0x00 - Unknown 0x01 - Subscriber number. 0x02 - Reserved for national use. 0x03 - National significant number. 0x04 - International number. Bit 8 (0xf0) 0 - even number of address signals, 1 - odd number of address signals.

Returns

0 on success.
-1 on failure.

Definition at line 170 of file sigtran.c.

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Variable Documentation

◆ ascii_to_tbcd

uint8_t const ascii_to_tbcd[]

Initial value:

= {
        [0] = 0,
        ['0'] = 0x00,
        ['1'] = 0x01,
        ['2'] = 0x02,
        ['3'] = 0x03,
        ['4'] = 0x04,
        ['5'] = 0x05,
        ['6'] = 0x06,
        ['7'] = 0x07,
        ['8'] = 0x08,
        ['9'] = 0x09,
        ['*'] = 0x0a,
        ['#'] = 0x0b,
        ['a'] = 0x0c,
        ['b'] = 0x0d,
        ['c'] = 0x0e,
        [255] = 0
}

Conversion table to transform ASCII to Telephony Binary Coded Decimal.

Should be safe to use without validation, invalid digits will be replaced with zeroes.

Definition at line 50 of file sigtran.c.

◆ is_char_tbcd

uint8_t const is_char_tbcd[]

Initial value:

= {
        [0] = 0,
        ['0'] = 1,
        ['1'] = 1,
        ['2'] = 1,
        ['3'] = 1,
        ['4'] = 1,
        ['5'] = 1,
        ['6'] = 1,
        ['7'] = 1,
        ['8'] = 1,
        ['9'] = 1,
        ['*'] = 1,
        ['#'] = 1,
        ['a'] = 1,
        ['b'] = 1,
        ['c'] = 1,
        [255] = 0
}

Check is a char is valid Telephony Binary Coded Decimal.

Definition at line 73 of file sigtran.c.

Macros

Functions

Variables