neels has submitted this change. (
https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/24767 )
Change subject: msc: add inter-MSC HO tests with A5 encryption
......................................................................
msc: add inter-MSC HO tests with A5 encryption
Related: SYS#5324
Change-Id: Ia1df783be33bf752d291acb857d3c48882c65975
---
M msc/MSC_Tests.ttcn
1 file changed, 61 insertions(+), 6 deletions(-)
Approvals:
Jenkins Builder: Verified
pespin: Looks good to me, but someone else must approve
laforge: Looks good to me, approved
diff --git a/msc/MSC_Tests.ttcn b/msc/MSC_Tests.ttcn
index 221123b..b12fb5e 100644
--- a/msc/MSC_Tests.ttcn
+++ b/msc/MSC_Tests.ttcn
@@ -5992,10 +5992,24 @@
/* The target cell 017-017 LAC 1 is configured to be a remote MSC of
name "msc-017-017-1".
* This MSC tries to reach the other MSC via GSUP. */
+ var template BSSMAP_IE_EncryptionInformation encryptionInformation;
+ var template BSSMAP_IE_ChosenEncryptionAlgorithm
chosenEncryptionAlgorithm;
+ var template BSSMAP_IE_KC128 kC128;
+ var OCT1 a5_perm_alg;
+ f_get_expected_encryption(encryptionInformation,
chosenEncryptionAlgorithm, kC128, a5_perm_alg);
+ var template PDU_BSSAP expect_ho_request :=
tr_BSSMAP_HandoverRequest(encryptionInformation, chosenEncryptionAlgorithm,
kC128);
+
var octetstring remote_msc_name := '6D73632D3031372D3031372D3100'O; /*
"msc-017-017-1\0" as octetstring */
var GSUP_PDU prep_ho_req;
-
GSUP.receive(tr_GSUP_E_AN_APDU(OSMO_GSUP_MSGT_E_PREPARE_HANDOVER_REQUEST,
- pars.imsi, destination_name :=
remote_msc_name)) -> value prep_ho_req;
+ alt {
+ []
GSUP.receive(tr_GSUP_E_AN_APDU(OSMO_GSUP_MSGT_E_PREPARE_HANDOVER_REQUEST,
+ pars.imsi, destination_name := remote_msc_name,
+ an_apdu :=
t_GSUP_AN_APDU(OSMO_GSUP_AN_PROTO_48006, decmatch expect_ho_request))) -> value
prep_ho_req;
+ []
GSUP.receive(tr_GSUP_E_AN_APDU(OSMO_GSUP_MSGT_E_PREPARE_HANDOVER_REQUEST)) {
+ setverdict(fail, "Wrong
OSMO_GSUP_MSGT_E_PREPARE_HANDOVER_REQUEST message received");
+ mtc.stop;
+ }
+ }
var GSUP_IeValue source_name_ie;
f_gsup_find_ie(prep_ho_req, OSMO_GSUP_SOURCE_NAME_IE, source_name_ie);
@@ -6006,7 +6020,8 @@
var octetstring rr_ho_cmd_enc := enc_PDU_ML3_NW_MS(rr_ho_cmd);
var PDU_BSSAP ho_req_ack :=
valueof(ts_BSSMAP_HandoverRequestAcknowledge(rr_ho_cmd_enc,
lengthof(rr_ho_cmd_enc),
aoIPTransportLayer := omit,
- speechCodec :=
ts_BSSMAP_IE_SpeechCodec({ts_CodecFR})));
+ speechCodec :=
ts_BSSMAP_IE_SpeechCodec({ts_CodecFR}),
+ chosenEncryptionAlgorithm :=
chosenEncryptionAlgorithm));
GSUP.send(ts_GSUP_E_PrepareHandoverResult(
pars.imsi,
ho_number,
@@ -6142,7 +6157,18 @@
));
/* MSC asks local BSS to prepare Handover to it */
- BSSAP.receive(tr_BSSMAP_HandoverRequest);
+ f_get_expected_encryption(encryptionInformation,
chosenEncryptionAlgorithm, kC128, a5_perm_alg);
+ expect_ho_request := tr_BSSMAP_HandoverRequest(encryptionInformation,
chosenEncryptionAlgorithm, kC128);
+ var PDU_BSSAP ho_request;
+ alt {
+ [] BSSAP.receive(expect_ho_request);
+ [] BSSAP.receive(tr_BSSMAP_HandoverRequest) -> value ho_request {
+ log("Error: Wrong handoverRequest received. Expected: ",
expect_ho_request,
+ " got ", ho_request);
+ setverdict(fail, "Wrong handoverRequest received");
+ mtc.stop;
+ }
+ }
/* Make sure the new BSSAP conn continues with the correct N_SD
sequence numbers */
f_bssmap_continue_after_n_sd(last_n_sd);
@@ -6153,7 +6179,8 @@
var BSSMAP_IE_AoIP_TransportLayerAddress tla :=
valueof(f_ts_BSSMAP_IE_AoIP_TLA(cpars.bss_rtp_ip,
cpars.bss_rtp_port));
BSSAP.send(ts_BSSMAP_HandoverRequestAcknowledge(rr_ho_cmd_enc,
lengthof(rr_ho_cmd_enc),
- tla,
ts_BSSMAP_IE_SpeechCodec({ts_CodecFR})));
+ tla,
ts_BSSMAP_IE_SpeechCodec({ts_CodecFR}),
+
chosenEncryptionAlgorithm := chosenEncryptionAlgorithm));
/* HandoverCommand goes out via remote MSC-I */
var GSUP_PDU prep_subsq_ho_res;
@@ -6190,15 +6217,40 @@
setverdict(pass);
}
-testcase TC_ho_inter_msc_out() runs on MTC_CT {
+function f_tc_ho_inter_msc_out_a5(integer a5_n) runs on MTC_CT {
var BSC_ConnHdlr vc_conn;
f_init(1);
var BSC_ConnHdlrPars pars := f_init_pars(54);
+ pars.net.expect_ciph := a5_n > 0;
+ pars.net.expect_auth := pars.net.expect_ciph;
+ pars.net.kc_support := bit2oct('00000001'B << a5_n);
+ pars.cm2.classmarkInformationType2_oct5.a5_3 := '1'B;
+ pars.cm2.classmarkInformationType2_oct5.a5_2 := '0'B;
+ pars.cm2.classmarkInformationType2_oct5.cm3 := '1'B;
+ pars.cm3 := valueof(ts_CM3_default);
+ pars.use_umts_aka := true;
+
+ if (a5_n > 0) {
+ f_vty_config(MSCVTY, "network", "authentication required");
+ }
+ f_vty_config(MSCVTY, "network", "encryption a5 " & int2str(a5_n));
vc_conn := f_start_handler_with_pars(refers(f_tc_ho_inter_msc_out),
pars, 0);
vc_conn.done;
}
+testcase TC_ho_inter_msc_out() runs on MTC_CT {
+ f_tc_ho_inter_msc_out_a5(0);
+}
+testcase TC_ho_inter_msc_out_a5_1() runs on MTC_CT {
+ f_tc_ho_inter_msc_out_a5(1);
+}
+testcase TC_ho_inter_msc_out_a5_3() runs on MTC_CT {
+ f_tc_ho_inter_msc_out_a5(3);
+}
+testcase TC_ho_inter_msc_out_a5_4() runs on MTC_CT {
+ f_tc_ho_inter_msc_out_a5(4);
+}
testcase TC_ho_inter_msc_out_ipv6() runs on MTC_CT {
var BSC_ConnHdlr vc_conn;
f_init(1);
@@ -6683,6 +6735,9 @@
execute( TC_ho_inter_bsc_ipv6() );
execute( TC_ho_inter_msc_out() );
+ execute( TC_ho_inter_msc_out_a5_1() );
+ execute( TC_ho_inter_msc_out_a5_3() );
+ execute( TC_ho_inter_msc_out_a5_4() );
execute( TC_ho_inter_msc_out_ipv6() );
execute( TC_lu_imsi_auth_tmsi_check_imei() );
--
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Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: Ia1df783be33bf752d291acb857d3c48882c65975
Gerrit-Change-Number: 24767
Gerrit-PatchSet: 2
Gerrit-Owner: neels <[email protected]>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: laforge <[email protected]>
Gerrit-Reviewer: neels <[email protected]>
Gerrit-Reviewer: pespin <[email protected]>
Gerrit-MessageType: merged
