lynxis lazus has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/39254?usp=email )

Change subject: SGSN: TC_attach_gmm_attach_req_while_gmm_attach: fix test case ......................................................................

SGSN: TC_attach_gmm_attach_req_while_gmm_attach: fix test case

The SGSN has changed the behavior: - removed auth-policy - not supported anymore - require authentication

Change-Id: I026499844940d4c3d82b0fbd61be636c6ca348e6 --- M sgsn/BSSGP_ConnHdlr.ttcn M sgsn/SGSN_Tests.ttcn 2 files changed, 18 insertions(+), 17 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks refs/changes/54/39254/1

diff --git a/sgsn/BSSGP_ConnHdlr.ttcn b/sgsn/BSSGP_ConnHdlr.ttcn index 1af9181..12819b7 100644 --- a/sgsn/BSSGP_ConnHdlr.ttcn +++ b/sgsn/BSSGP_ConnHdlr.ttcn @@ -531,6 +531,10 @@ /* T3302, T3319, T3323, T3312_ext, T3324 */ }

+function f_random_ptmsi(OCT1 suffix := '00'O) return OCT4 { + return 'C0'O & f_rnd_octstring(2) & suffix; +} + function f_random_RAI(HEX0_3n mcc := '262'H, HEX0_3n mnc := '42'H) return RoutingAreaIdentificationV { return f_RAI(mcc, mnc, f_rnd_octstring(2), f_rnd_octstring(1)); } diff --git a/sgsn/SGSN_Tests.ttcn b/sgsn/SGSN_Tests.ttcn index a39e346..f8b9213 100644 --- a/sgsn/SGSN_Tests.ttcn +++ b/sgsn/SGSN_Tests.ttcn @@ -2024,6 +2024,9 @@ var RoutingAreaIdentificationV rand_rai := f_random_RAI(); var PDU_L3_SGSN_MS l3_mt;

+ g_pars.vec := f_gen_auth_vec_3g(); + g_pars.p_tmsi := f_random_ptmsi(suffix := '01'O); + f_send_l3(ts_GMM_ATTACH_REQ(f_mi_get_lv(), rand_rai, true, false, omit, omit));

alt { @@ -2034,30 +2037,23 @@ [] BSSGP[0].receive(tr_GMM_ID_REQ('001'B)) { mi := valueof(ts_MI_IMSI_LV(g_pars.imsi)); f_send_l3(ts_GMM_ID_RESP(mi)); + f_send_l3(ts_GMM_ATTACH_REQ(f_mi_get_lv(), rand_rai, true, false, omit, omit)); repeat; } [] BSSGP[0].receive(tr_GMM_ID_REQ('010'B)) { /* send out a second GMM_Attach Request. * If the SGSN follows the rules, this 2nd ATTACH REQ should be ignored, because * of the same content */ - f_send_l3(ts_GMM_ATTACH_REQ(f_mi_get_lv(), rand_rai, true, false, omit, omit)); mi := valueof(ts_MI_IMEI_LV(g_pars.imei)); - f_send_l3(ts_GMM_ID_RESP(mi)); + repeat; } + [] as_gmm_auth(umts_aka_challenge := true, expect_sai := true) {}; } f_sleep(1.0);

/* we've sent already a IMEI answer, we should NOT asked again for IMEI */ alt { - [] BSSGP[0].receive(tr_GMM_ID_REQ('001'B)) { - mi := valueof(ts_MI_IMSI_LV(g_pars.imsi)); - f_send_l3(ts_GMM_ID_RESP(mi)); - repeat; - } - [] BSSGP[0].receive(tr_GMM_ID_REQ('010'B)) { - setverdict(fail, "Unexpected GMM ID REQ (IMEI)."); - mtc.stop; - } + [] as_gmm_gsup_lu_isd() { repeat; }; [] BSSGP[0].receive(tr_GMM_ATTACH_REJECT(?)) { setverdict(fail, "Unexpected GMM ATTACH REJECT"); mtc.stop; @@ -2073,19 +2069,20 @@

testcase TC_attach_gmm_attach_req_while_gmm_attach() runs on test_CT { /* Testing if the SGSN ignore Attach Request with the exact same content */ - /* MS -> SGSN: Attach Request IMSI - * MS <- SGSN: Identity Request IMSI (optional) - * MS -> SGSN: Identity Response IMSI (optional) - * MS <- SGSN: Identity Request IMEI + /* MS -> SGSN: Attach Request TMSI + * MS <- SGSN: Identity Request IMSI + * MS -> SGSN: Identity Response IMSI * MS -> SGSN: Attach Request (2nd) - * MS <- SGSN: Identity Response IMEI + * SGS -> HLR: SAI Request + * SGS <- HLR: SAI Response + * MS <- SGSN: Identity Request IMEI + * MS -> SGSN: Identity Response IMEI * MS <- SGSN: Attach Accept * MS -> SGSN: Attach Complete */ var BSSGP_ConnHdlr vc_conn; f_init(); f_sleep(1.0); - f_vty_config(SGSNVTY, "sgsn", "auth-policy accept-all"); vc_conn := f_start_handler(refers(f_TC_attach_gmm_attach_req_while_gmm_attach), testcasename(), g_gb, 39); vc_conn.done; f_cleanup();