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-rw-r--r--msc/BSC_ConnectionHandler.ttcn36
1 files changed, 28 insertions, 8 deletions
diff --git a/msc/BSC_ConnectionHandler.ttcn b/msc/BSC_ConnectionHandler.ttcn
index 4534a9b..e408f82 100644
--- a/msc/BSC_ConnectionHandler.ttcn
+++ b/msc/BSC_ConnectionHandler.ttcn
@@ -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)));
+ }
}
}