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authorAlexander Couzens <lynxis@fe80.eu>2018-09-14 16:37:04 +0200
committerAlexander Couzens <lynxis@fe80.eu>2018-09-14 16:37:04 +0200
commit0c6324ff129dc5d8a030aa4cd8178619255e6c53 (patch)
tree157417602ceff27b13ca69144c4a8b2aac62d58c /sgsn
parent8aa5cb3f8928005105b9257a2d61dad9ef67b1a7 (diff)
sgsn: implement TC_attach_usim_resync
Test the UMTS AKA resync procedure with USIMs. MS -> SGSN: Attach Request MS <- SGSN: Identity Request IMSI MS -> SGSN: Identity Response IMSI MS <- SGSN: Identity Request IMEI MS -> SGSN: Identity Response IMEI HLR<- SGSN: SAI Request HLR-> SGSN: SAI Response MS <- SGSN: Auth Request MS -> SGSN: Auth Failure (with AUTS) HLR<- SGSN: SAI Request (with AUTS & RAND) HLR-> SGSN: SAI Response (new key material) MS <- SGSN: Auth Request (new key material) MS -> SGSN: Auth Response MS <- SGSN: Attach Accept MS -> SGSN: Attach Complete Change-Id: I52a8dc45bb67d4ca9f3efade278d3308bb0da73d
Diffstat (limited to 'sgsn')
-rw-r--r--sgsn/SGSN_Tests.ttcn131
1 files changed, 131 insertions, 0 deletions
diff --git a/sgsn/SGSN_Tests.ttcn b/sgsn/SGSN_Tests.ttcn
index 0112483..a2e93c0 100644
--- a/sgsn/SGSN_Tests.ttcn
+++ b/sgsn/SGSN_Tests.ttcn
@@ -2015,6 +2015,136 @@ testcase TC_attach_gmm_attach_req_while_gmm_attach() runs on test_CT {
vc_conn.done;
}
+private function f_TC_attach_usim_resync(charstring id) runs on BSSGP_ConnHdlr {
+ var BssgpDecoded bd;
+ var RoutingAreaIdentificationV old_ra := f_random_RAI();
+
+ var template PDU_L3_MS_SGSN attach_req := ts_GMM_ATTACH_REQ(f_mi_get_lv(), old_ra, false, false, omit, omit);
+
+ /* send Attach Request */
+ /* indicate R99 capability of the MS to enable UMTS AKA in presence of
+ * 3G auth vectors */
+ attach_req.msgs.gprs_mm.attachRequest.msNetworkCapability.msNetworkCapabilityV.revisionLevelIndicatior := '1'B;
+ /* The thing is, if the solSACapability is 'omit', then the
+ * revisionLevelIndicatior is at the wrong place! */
+ attach_req.msgs.gprs_mm.attachRequest.msNetworkCapability.msNetworkCapabilityV.solSACapability := '0'B;
+ f_send_l3_gmm_llc(attach_req);
+
+ /* do the auth */
+ var PDU_L3_MS_SGSN l3_mo;
+ var PDU_L3_SGSN_MS l3_mt;
+ var default di := activate(as_mm_identity());
+
+ var GSUP_IE auth_tuple;
+ var template AuthenticationParameterAUTNTLV autn;
+
+ g_pars.vec := f_gen_auth_vec_3g();
+ autn := {
+ elementIdentifier := '28'O,
+ lengthIndicator := lengthof(g_pars.vec.autn),
+ autnValue := g_pars.vec.autn
+ };
+ 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));
+ log("GSUP sends 2G and 3G auth tuples", auth_tuple);
+ GSUP.receive(tr_GSUP_SAI_REQ(g_pars.imsi));
+ GSUP.send(ts_GSUP_SAI_RES(g_pars.imsi, auth_tuple));
+
+ var template PDU_L3_SGSN_MS auth_ciph_req := tr_GMM_AUTH_REQ(g_pars.vec.rand);
+ auth_ciph_req.msgs.gprs_mm.authenticationAndCipheringRequest.authenticationParameterAUTN := autn;
+ BSSGP[0].receive(tr_BD_L3_MT(auth_ciph_req)) -> value bd;
+
+ /* send the gmm auth failure with resync IE */
+ f_send_l3_gmm_llc(ts_GMM_AUTH_FAIL_UMTS_AKA_RESYNC(g_pars.vec.auts));
+
+ /* wait for the GSUP resync request */
+ GSUP.receive(tr_GSUP_SAI_REQ_UMTS_AKA_RESYNC(
+ g_pars.imsi,
+ g_pars.vec.auts,
+ g_pars.vec.rand));
+
+ /* generate new key material */
+ g_pars.vec := f_gen_auth_vec_3g();
+ autn := {
+ elementIdentifier := '28'O,
+ lengthIndicator := lengthof(g_pars.vec.autn),
+ autnValue := g_pars.vec.autn
+ };
+
+ 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));
+ /* send new key material */
+ GSUP.send(ts_GSUP_SAI_RES(g_pars.imsi, auth_tuple));
+
+ /* wait for the new Auth Request */
+ auth_ciph_req := tr_GMM_AUTH_REQ(g_pars.vec.rand);
+ auth_ciph_req.msgs.gprs_mm.authenticationAndCipheringRequest.authenticationParameterAUTN := autn;
+ BSSGP[0].receive(tr_BD_L3_MT(auth_ciph_req)) -> value bd;
+ l3_mt := bd.l3_mt;
+ var BIT4 ac_ref := l3_mt.msgs.gprs_mm.authenticationAndCipheringRequest.acReferenceNumber.valueField;
+ var template PDU_L3_MS_SGSN auth_ciph_resp := ts_GMM_AUTH_RESP_2G(ac_ref, g_pars.vec.sres);
+ auth_ciph_resp := ts_GMM_AUTH_RESP_2G(ac_ref, g_pars.vec.sres);
+ auth_ciph_resp.msgs.gprs_mm.authenticationAndCipheringResponse.authenticationParResp := {
+ valueField := substr(g_pars.vec.res, 0, 4)
+ };
+ auth_ciph_resp.msgs.gprs_mm.authenticationAndCipheringResponse.authenticationRespParExt := {
+ elementIdentifier := '21'O,
+ lengthIndicator := lengthof(g_pars.vec.res) - 4,
+ valueField := substr(g_pars.vec.res, 4, lengthof(g_pars.vec.res) - 4)
+ };
+ l3_mo := valueof(auth_ciph_resp);
+ if (ispresent(l3_mt.msgs.gprs_mm.authenticationAndCipheringRequest.imeisvRequest) and
+ l3_mt.msgs.gprs_mm.authenticationAndCipheringRequest.imeisvRequest.valueField == '001'B) {
+ l3_mo.msgs.gprs_mm.authenticationAndCipheringResponse.imeisv :=
+ valueof(ts_MI_IMEISV_TLV(g_pars.imei & '0'H));
+ }
+ f_send_l3_gmm_llc(l3_mo);
+ deactivate(di);
+
+ /* Expect SGSN to perform LU with HLR */
+ f_gmm_gsup_lu_isd();
+
+ BSSGP[0].receive(tr_BD_L3_MT(tr_GMM_ATTACH_ACCEPT('001'B, ?, ?))) -> value bd {
+ f_process_attach_accept(bd.l3_mt.msgs.gprs_mm.attachAccept);
+ }
+ f_send_l3_gmm_llc(ts_GMM_ATTACH_COMPL);
+ setverdict(pass);
+}
+
+testcase TC_attach_usim_resync() runs on test_CT {
+ /* MS -> SGSN: Attach Request
+ * MS <- SGSN: Identity Request IMSI
+ * MS -> SGSN: Identity Response IMSI
+ * MS <- SGSN: Identity Request IMEI
+ * MS -> SGSN: Identity Response IMEI
+ * HLR<- SGSN: SAI Request
+ * HLR-> SGSN: SAI Response
+ * MS <- SGSN: Auth Request
+ * MS -> SGSN: Auth Failure (with AUTS)
+ * HLR<- SGSN: SAI Request (with AUTS & RAND)
+ * HLR-> SGSN: SAI Response (new key material)
+ * MS <- SGSN: Auth Request (new key material)
+ * MS -> SGSN: Auth Response
+ * MS <- SGSN: Attach Accept
+ * MS -> SGSN: Attach Complete
+ */
+ var BSSGP_ConnHdlr vc_conn;
+ f_init();
+ f_sleep(1.0);
+ vc_conn := f_start_handler(refers(f_TC_attach_usim_resync), testcasename(), g_gb, 40);
+ vc_conn.done;
+}
+
control {
execute( TC_attach() );
execute( TC_attach_mnc3() );
@@ -2042,6 +2172,7 @@ control {
execute( TC_attach_rau() );
execute( TC_attach_rau_a_a() );
execute( TC_attach_rau_a_b() );
+ execute( TC_attach_usim_resync() );
execute( TC_detach_unknown_nopoweroff() );
execute( TC_detach_unknown_poweroff() );
execute( TC_detach_nopoweroff() );