msc: f_mm_auth(): Add support for UMTS AKA
Change-Id: Id57adcebd63a06cfa555824e493561fe08f13d6d
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645a151f69
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@ -75,7 +75,8 @@ type record BSC_ConnHdlrPars {
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boolean mm_info,
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boolean sgsap_enable,
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boolean gsup_enable,
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integer ran_idx
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integer ran_idx,
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boolean use_umts_aka
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};
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/* get a one-octet bitmaks of supported algorithms based on Classmark information */
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@ -293,16 +294,35 @@ private function f_build_lu(MobileIdentityLV mi) runs on BSC_ConnHdlr return PDU
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function f_mm_auth() runs on BSC_ConnHdlr
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{
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if (g_pars.net.expect_auth) {
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var GSUP_IE auth_tuple;
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GSUP.receive(tr_GSUP_SAI_REQ(g_pars.imsi));
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if (g_pars.use_umts_aka) {
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g_pars.vec := f_gen_auth_vec_3g();
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auth_tuple := valueof(ts_GSUP_IE_AuthTuple2G3G(g_pars.vec.rand,
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g_pars.vec.sres,
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g_pars.vec.kc,
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g_pars.vec.ik,
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g_pars.vec.ck,
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g_pars.vec.autn,
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g_pars.vec.res));
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GSUP.send(ts_GSUP_SAI_RES(g_pars.imsi, auth_tuple));
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BSSAP.receive(tr_PDU_DTAP_MT(tr_ML3_MT_MM_AUTH_REQ_3G(g_pars.vec.rand, g_pars.vec.autn)));
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var OCT4 res := substr(g_pars.vec.res, 0, 4);
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var OCT4 xres := substr(g_pars.vec.res, 4, 4);
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BSSAP.send(ts_PDU_DTAP_MO(ts_ML3_MT_MM_AUTH_RESP_3G(res, xres)));
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} else {
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g_pars.vec := f_gen_auth_vec_2g();
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var GSUP_IE auth_tuple := valueof(ts_GSUP_IE_AuthTuple2G(g_pars.vec.rand,
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auth_tuple := valueof(ts_GSUP_IE_AuthTuple2G(g_pars.vec.rand,
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g_pars.vec.sres,
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g_pars.vec.kc));
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GSUP.receive(tr_GSUP_SAI_REQ(g_pars.imsi));
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GSUP.send(ts_GSUP_SAI_RES(g_pars.imsi, auth_tuple));
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BSSAP.receive(tr_PDU_DTAP_MT(tr_ML3_MT_MM_AUTH_REQ(g_pars.vec.rand)));
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BSSAP.send(ts_PDU_DTAP_MO(ts_ML3_MT_MM_AUTH_RESP_2G(g_pars.vec.sres)));
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}
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}
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}
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function f_mm_common() runs on BSC_ConnHdlr
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@ -513,7 +513,8 @@ runs on MTC_CT return BSC_ConnHdlrPars {
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mm_info := mp_mm_info,
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sgsap_enable := sgsap,
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gsup_enable := gsup,
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ran_idx := ran_idx
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ran_idx := ran_idx,
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use_umts_aka := false
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};
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return pars;
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}
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