ttcn3
/
osmo-ttcn3-hacks
mirror of https://gerrit.osmocom.org/osmo-ttcn3-hacks
10
0
Fork 1
Code Issues Releases Wiki Activity

sgsn: add TC_attach_no_imsi_response 

Ignores Identity Request IMSI.

MS -> SGSN: Attach Request TMSI (unknown)
MS <- SGSN: Identity Request IMEI (optional)
MS -> SGSN: Identity Response IMEI (optional)
MS <- SGSN: Identity Request IMSI
MS -x SGSN: no response
MS <- SGSN: re-send: Identity Request IMSI 4x
MS <- SGSN: Attach Reject

Change-Id: I4f41d59cfe6b0168b5e0874082fd700b56a7f0da
This commit is contained in:
Alexander Couzens 2018-06-12 16:24:12 +02:00
parent 667dd7fa84
commit 53f2056571
1 changed files with 48 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

48
sgsn/SGSN_Tests.ttcn
View File

@ -1411,6 +1411,53 @@ testcase TC_attach_no_imei_response() runs on test_CT {
vc_conn.done;
}
/* Attempt an attach, but loose the Identification Request (IMSI) */
private function f_TC_attach_no_imsi_response(charstring id) runs on BSSGP_ConnHdlr {
var integer count_req := 0;
var MobileL3_CommonIE_Types.MobileIdentityLV mi;
/* set p_tmsi to use it in Attach Req via f_mi_get_lv() */
g_pars.p_tmsi := 'c0000035'O;
BSSGP.send(ts_GMM_ATTACH_REQ(f_mi_get_lv(), f_random_RAI(), true, false, omit, omit));
alt {
[] BSSGP.receive(tr_BD_L3_MT(tr_GMM_ATTACH_REJECT(?))) {
/* break */
}
[] BSSGP.receive(tr_BD_L3_MT(tr_GMM_ID_REQ('001'B))) {
/* ignore ID REQ IMSI */
count_req := count_req + 1;
repeat;
}
[] BSSGP.receive(tr_BD_L3_MT(tr_GMM_ID_REQ('010'B))) {
mi := valueof(ts_MI_IMEI_LV(g_pars.imei));
BSSGP.send(ts_GMM_ID_RESP(mi));
repeat;
}
}
if (count_req != 5) {
setverdict(fail, "Did not received GMM ID Request Type IMSI 5 times!");
}
setverdict(pass);
}
testcase TC_attach_no_imsi_response() runs on test_CT {
/* MS -> SGSN: Attach Request TMSI (unknown)
* MS <- SGSN: Identity Request IMEI (optional)
* MS -> SGSN: Identity Response IMEI (optional)
* MS <- SGSN: Identity Request IMSI
* MS -x SGSN: no response
* MS <- SGSN: re-send: Identity Request IMSI 4x
* MS <- SGSN: Attach Reject
*/
var BSSGP_ConnHdlr vc_conn;
f_init();
f_sleep(1.0);
vc_conn := f_start_handler(refers(f_TC_attach_no_imsi_response), testcasename(), g_gb[0], 35, 60.0);
vc_conn.done;
}
control {
execute( TC_attach() );
execute( TC_attach_mnc3() );
@ -1425,6 +1472,7 @@ control {
execute( TC_attach_accept_all() );
execute( TC_attach_closed() );
execute( TC_attach_no_imei_response() );
execute( TC_attach_no_imsi_response() );
execute( TC_hlr_location_cancel_request_update(), 10.0 );
execute( TC_hlr_location_cancel_request_withdraw(), 10.0 );
execute( TC_hlr_location_cancel_request_unknown_subscriber_withdraw(), 10.0 );