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authorHarald Welte <laforge@gnumonks.org>2019-05-02 20:11:21 +0200
committerHarald Welte <laforge@gnumonks.org>2019-05-10 22:38:17 +0000
commitca36246737cdeaee55b6d53ba9a3f63df0b3070b (patch)
treeabfdf0da0ef8ed049d41395bbdbbdbc8b54175db /sgsn
parent9b064881163fa499b761fc0796a9c6d29fb7478b (diff)
SGSN_Tests: Make f_gmm_attach() and f_gmm_auth() work on gb_idx != 0
Let's make sure the related functions can be used on other gb_idx, i.e. via another Gb interface (and hence simulated RAN/PCU) than the first one. Change-Id: Ie88cbf0c70269cc3e2c2fd2a0c65c8f2130ec2b1
Diffstat (limited to 'sgsn')
-rw-r--r--sgsn/SGSN_Tests.ttcn50
1 files changed, 31 insertions, 19 deletions
diff --git a/sgsn/SGSN_Tests.ttcn b/sgsn/SGSN_Tests.ttcn
index 9399e66..c34cf59 100644
--- a/sgsn/SGSN_Tests.ttcn
+++ b/sgsn/SGSN_Tests.ttcn
@@ -387,28 +387,40 @@ function f_send_l3_gmm_llc(template PDU_L3_MS_SGSN l3_mo, integer gb_index := 0)
f_send_llc(ts_LLC_UI(l3_enc, sapi, '0'B, n_u));
}
-altstep as_mm_identity() runs on BSSGP_ConnHdlr {
+altstep as_mm_identity(integer gb_idx := 0) runs on BSSGP_ConnHdlr {
var MobileL3_CommonIE_Types.MobileIdentityLV mi;
- [] BSSGP[0].receive(tr_BD_L3_MT(tr_GMM_ID_REQ('001'B))) {
+ [] BSSGP[gb_idx].receive(tr_BD_L3_MT(tr_GMM_ID_REQ('001'B))) {
mi := valueof(ts_MI_IMSI_LV(g_pars.imsi));
- f_send_l3_gmm_llc(ts_GMM_ID_RESP(mi));
+ f_send_l3_gmm_llc(ts_GMM_ID_RESP(mi), gb_idx);
repeat;
}
- [] BSSGP[0].receive(tr_BD_L3_MT(tr_GMM_ID_REQ('010'B))) {
+ [] BSSGP[gb_idx].receive(tr_BD_L3_MT(tr_GMM_ID_REQ('010'B))) {
mi := valueof(ts_MI_IMEI_LV(g_pars.imei));
- f_send_l3_gmm_llc(ts_GMM_ID_RESP(mi));
+ f_send_l3_gmm_llc(ts_GMM_ID_RESP(mi), gb_idx);
repeat;
}
}
+/* receive a L3 (GMM/SM) message over whatever is the appropriate lower-layer bearer */
+function f_receive_l3(template PDU_L3_SGSN_MS rx_tpl := ?, integer gb_idx := 0)
+runs on BSSGP_ConnHdlr return PDU_L3_SGSN_MS {
+ var BssgpDecoded bd;
+ var PDU_L3_SGSN_MS l3_mt;
+ alt {
+ [] BSSGP[gb_idx].receive(tr_BD_L3_MT(rx_tpl)) -> value bd {
+ l3_mt := bd.l3_mt;
+ }
+ }
+ return l3_mt;
+}
+
/* perform GMM authentication (if expected).
* Note, for umts_aka_challenge to work, the revisionLevelIndicatior needs to
* be 1 to mark R99 capability, in the GMM Attach Request, see f_gmm_attach(). */
-function f_gmm_auth (boolean umts_aka_challenge := false, boolean force_gsm_sres := false) runs on BSSGP_ConnHdlr {
- var BssgpDecoded bd;
+function f_gmm_auth (boolean umts_aka_challenge := false, boolean force_gsm_sres := false, integer gb_idx := 0) runs on BSSGP_ConnHdlr {
var PDU_L3_MS_SGSN l3_mo;
var PDU_L3_SGSN_MS l3_mt;
- var default di := activate(as_mm_identity());
+ var default di := activate(as_mm_identity(gb_idx));
if (g_pars.net.expect_auth) {
var GSUP_IE auth_tuple;
var template AuthenticationParameterAUTNTLV autn;
@@ -437,13 +449,13 @@ function f_gmm_auth (boolean umts_aka_challenge := false, boolean force_gsm_sres
g_pars.vec.kc));
log("GSUP sends only 2G auth tuple", 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;
- l3_mt := bd.l3_mt;
+ l3_mt := f_receive_l3(auth_ciph_req, gb_idx);
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);
@@ -465,7 +477,7 @@ function f_gmm_auth (boolean umts_aka_challenge := false, boolean force_gsm_sres
l3_mo.msgs.gprs_mm.authenticationAndCipheringResponse.imeisv :=
valueof(ts_MI_IMEISV_TLV(g_pars.imei & '0'H));
}
- f_send_l3_gmm_llc(l3_mo);
+ f_send_l3_gmm_llc(l3_mo, gb_idx);
} else {
/* wait for identity procedure */
f_sleep(1.0);
@@ -559,10 +571,10 @@ private function f_gmm_gsup_lu_isd() runs on BSSGP_ConnHdlr {
GSUP.send(ts_GSUP_UL_RES(g_pars.imsi));
}
-private function f_gmm_attach(boolean umts_aka_challenge, boolean force_gsm_sres) runs on BSSGP_ConnHdlr {
- var BssgpDecoded bd;
+friend function f_gmm_attach(boolean umts_aka_challenge, boolean force_gsm_sres, integer gb_idx := 0) runs on BSSGP_ConnHdlr {
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);
+ var PDU_L3_SGSN_MS l3_mt;
/* indicate R99 capability of the MS to enable UMTS AKA in presence of
* 3G auth vectors */
@@ -571,16 +583,16 @@ private function f_gmm_attach(boolean umts_aka_challenge, boolean force_gsm_sres
* revisionLevelIndicatior is at the wrong place! */
attach_req.msgs.gprs_mm.attachRequest.msNetworkCapability.msNetworkCapabilityV.solSACapability := '0'B;
- f_send_l3_gmm_llc(attach_req);
- f_gmm_auth(umts_aka_challenge, force_gsm_sres);
+ f_send_l3_gmm_llc(attach_req, gb_idx);
+ f_gmm_auth(umts_aka_challenge, force_gsm_sres, gb_idx);
/* 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);
- }
+ l3_mt := f_receive_l3(tr_GMM_ATTACH_ACCEPT('001'B, ?, ?), gb_idx);
+ f_process_attach_accept(l3_mt.msgs.gprs_mm.attachAccept);
+
/* FIXME: Extract P-TMSI, if any. Only send Complete if necessary */
- f_send_l3_gmm_llc(ts_GMM_ATTACH_COMPL);
+ f_send_l3_gmm_llc(ts_GMM_ATTACH_COMPL, gb_idx);
}
private function f_TC_attach(charstring id) runs on BSSGP_ConnHdlr {