[PATCH] osmo-ttcn3-hacks[master]: BSC_Tests: Fix TC_assignment_fr_a5_4

[Harald Welte]

Review at  https://gerrit.osmocom.org/5561

BSC_Tests: Fix TC_assignment_fr_a5_4

Don't expect the ASSIGNMENT to fail in case of unsupported A5/4,
but expect a CIPHERING MODE REJECT.

Change-Id: I15024f61e67795b7e5ce72e1b641db6ca92ff76d
---
M bsc/BSC_Tests.ttcn
M bsc/MSC_ConnectionHandler.ttcn
2 files changed, 15 insertions(+), 6 deletions(-)


  git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks refs/changes/61/5561/1

diff --git a/bsc/BSC_Tests.ttcn b/bsc/BSC_Tests.ttcn
index 4c88788..4cf418e 100644
--- a/bsc/BSC_Tests.ttcn
+++ b/bsc/BSC_Tests.ttcn
@@ -1338,7 +1338,7 @@
 
 private function f_tc_assignment_fr_a5_4(charstring id) runs on MSC_ConnHdlr {
 	var TestHdlrParams pars := valueof(t_def_TestHdlrPars);
-	var template PDU_BSSAP exp_fail := tr_BSSMAP_AssignmentFail;
+	var template PDU_BSSAP exp_compl := tr_BSSMAP_AssignmentComplete(omit, ?);
 	var BSSMAP_IE_AoIP_TransportLayerAddress tla := valueof(ts_BSSMAP_IE_AoIP_TLA4('01020304'O, 2342));
 	var PDU_BSSAP ass_cmd := valueof(ts_BSSMAP_AssignmentReq(omit, tla));
 	const OCT8 kc := '0001020304050607'O;
@@ -1346,9 +1346,9 @@
 
 	ass_cmd.pdu.bssmap.assignmentRequest.channelType := valueof(ts_BSSMAP_IE_ChannelType);
 	ass_cmd.pdu.bssmap.assignmentRequest.codecList := valueof(ts_BSSMAP_IE_CodecList({ts_CodecFR}));
+	f_establish_fully(pars, ass_cmd, exp_compl);
+	f_cipher_mode('10'O, kc, kc128, true);
 	/* TODO: expect GSM0808_CAUSE_CIPHERING_ALGORITHM_NOT_SUPPORTED cause value */
-	f_establish_fully(pars, ass_cmd, exp_fail);
-	f_cipher_mode('10'O, kc, kc128);
 }
 
 testcase TC_assignment_fr_a5_4() runs on test_CT {
diff --git a/bsc/MSC_ConnectionHandler.ttcn b/bsc/MSC_ConnectionHandler.ttcn
index 51ac650..f683ef4 100644
--- a/bsc/MSC_ConnectionHandler.ttcn
+++ b/bsc/MSC_ConnectionHandler.ttcn
@@ -104,7 +104,8 @@
 	RSL.send(ts_RSL_DATA_IND(chan_nr, link_id, enc_PDU_ML3_MS_NW(valueof(l3))));
 }
 
-function f_cipher_mode(OCT1 alg, OCT8 key, template OCT16 kc128 := omit) runs on MSC_ConnHdlr {
+function f_cipher_mode(OCT1 alg, OCT8 key, template OCT16 kc128 := omit, boolean exp_fail := false)
+runs on MSC_ConnHdlr {
 	var PDU_BSSAP bssap;
 	var RSL_Message rsl;
 
@@ -125,10 +126,18 @@
 		}
 	[] BSSAP.receive(tr_BSSMAP_CipherModeCompl) -> value bssap {
 		// bssap.bssmap.cipherModeComplete.chosenEncryptionAlgorithm.algoritmhIdentifier
-		setverdict(pass);
+		if (exp_fail == true) {
+			setverdict(fail, "Unexpected Cipher Mode Complete");
+		} else {
+			setverdict(pass);
+		}
 		}
 	[] BSSAP.receive(tr_BSSMAP_CipherModeRej) -> value bssap {
-		setverdict(fail, "Ciphering Mode Reject");
+		if (exp_fail == false) {
+			setverdict(fail, "Ciphering Mode Reject");
+		} else {
+			setverdict(pass);
+		}
 		}
 	}
 }

-- 
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I15024f61e67795b7e5ce72e1b641db6ca92ff76d
Gerrit-PatchSet: 1
Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Owner: Harald Welte <laforge at gnumonks.org>