ttcn3
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osmo-ttcn3-hacks
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msc: f_mm_auth(): Add support for UMTS AKA 

Change-Id: Id57adcebd63a06cfa555824e493561fe08f13d6d
This commit is contained in:
Harald Welte 2019-04-21 21:19:23 +02:00
parent 645a151f69
commit c1f937a15b
2 changed files with 30 additions and 9 deletions
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36
msc/BSC_ConnectionHandler.ttcn
View File

@ -75,7 +75,8 @@ type record BSC_ConnHdlrPars {
boolean mm_info,
boolean sgsap_enable,
boolean gsup_enable,
integer ran_idx
integer ran_idx,
boolean use_umts_aka
};
/* get a one-octet bitmaks of supported algorithms based on Classmark information */
@ -293,15 +294,34 @@ private function f_build_lu(MobileIdentityLV mi) runs on BSC_ConnHdlr return PDU
function f_mm_auth() runs on BSC_ConnHdlr
{
if (g_pars.net.expect_auth) {
g_pars.vec := f_gen_auth_vec_2g();
var GSUP_IE auth_tuple := valueof(ts_GSUP_IE_AuthTuple2G(g_pars.vec.rand,
g_pars.vec.sres,
g_pars.vec.kc));
var GSUP_IE auth_tuple;
GSUP.receive(tr_GSUP_SAI_REQ(g_pars.imsi));
GSUP.send(ts_GSUP_SAI_RES(g_pars.imsi, auth_tuple));
BSSAP.receive(tr_PDU_DTAP_MT(tr_ML3_MT_MM_AUTH_REQ(g_pars.vec.rand)));
BSSAP.send(ts_PDU_DTAP_MO(ts_ML3_MT_MM_AUTH_RESP_2G(g_pars.vec.sres)));
if (g_pars.use_umts_aka) {
g_pars.vec := f_gen_auth_vec_3g();
auth_tuple := valueof(ts_GSUP_IE_AuthTuple2G3G(g_pars.vec.rand,
g_pars.vec.sres,
g_pars.vec.kc,
g_pars.vec.ik,
g_pars.vec.ck,
g_pars.vec.autn,
g_pars.vec.res));
GSUP.send(ts_GSUP_SAI_RES(g_pars.imsi, auth_tuple));
BSSAP.receive(tr_PDU_DTAP_MT(tr_ML3_MT_MM_AUTH_REQ_3G(g_pars.vec.rand, g_pars.vec.autn)));
var OCT4 res := substr(g_pars.vec.res, 0, 4);
var OCT4 xres := substr(g_pars.vec.res, 4, 4);
BSSAP.send(ts_PDU_DTAP_MO(ts_ML3_MT_MM_AUTH_RESP_3G(res, xres)));
} else {
g_pars.vec := f_gen_auth_vec_2g();
auth_tuple := valueof(ts_GSUP_IE_AuthTuple2G(g_pars.vec.rand,
g_pars.vec.sres,
g_pars.vec.kc));
GSUP.send(ts_GSUP_SAI_RES(g_pars.imsi, auth_tuple));
BSSAP.receive(tr_PDU_DTAP_MT(tr_ML3_MT_MM_AUTH_REQ(g_pars.vec.rand)));
BSSAP.send(ts_PDU_DTAP_MO(ts_ML3_MT_MM_AUTH_RESP_2G(g_pars.vec.sres)));
}
}
}

3
msc/MSC_Tests.ttcn
View File

@ -513,7 +513,8 @@ runs on MTC_CT return BSC_ConnHdlrPars {
mm_info := mp_mm_info,
sgsap_enable := sgsap,
gsup_enable := gsup,
ran_idx := ran_idx
ran_idx := ran_idx,
use_umts_aka := false
};
return pars;
}