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bsc: add f_cipher_mode_bssmap_to_rr() 

Change-Id: I6cc8cbed96f2838af1b0e41c5dfa6760c45d9ad1
Related: SYS#5838
This commit is contained in:
Vadim Yanitskiy 2022-03-14 22:27:57 +03:00 committed by laforge
parent 4483a22b1d
commit af2972e26f
1 changed files with 20 additions and 0 deletions
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20
bsc/MSC_ConnectionHandler.ttcn
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@ -797,6 +797,26 @@ function f_cipher_mode_bssmap_to_rsl(OCT1 alg_bssmap) return RSL_AlgId
}
}
/* Convert the cipher representation on BSSMAP to the one used on RR (3GPP TS 44.018) */
function f_cipher_mode_bssmap_to_rr(OCT1 alg_bssmap) return BIT3
{
select (alg_bssmap) {
case ('01'O) /* A5/0 */ { return '000'B; } /* SC=0 */
case ('02'O) /* A5/1 */ { return '000'B; } /* SC=1 */
case ('04'O) /* A5/2 */ { return '001'B; } /* SC=1 */
case ('08'O) /* A5/3 */ { return '010'B; } /* SC=1 */
case ('10'O) /* A5/4 */ { return '011'B; } /* SC=1 */
case ('20'O) /* A5/5 */ { return '100'B; } /* SC=1 */
case ('40'O) /* A5/6 */ { return '101'B; } /* SC=1 */
case ('80'O) /* A5/7 */ { return '110'B; } /* SC=1 */
case else {
Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "Unexpected Encryption Algorithm: " &
oct2str(alg_bssmap));
return '000'B;
}
}
}
function f_verify_encr_info(RSL_Message rsl) runs on MSC_ConnHdlr {
var RSL_IE_Body encr_info;
var RSL_AlgId alg_rsl;