msc_vlr_tests: add CC Release test and test to catch OS#2779
These tests helped to debug issue OS#2779. Now that they're here we might as
well keep them.
The test test_call_mo_to_unknown shows that an MS answering to the Release
Request works as it should: the conn is torn down.
The test test_call_mo_to_unknown_timeout currently expects the error: the conn
remains active if the CC Release times out. This bug and the test expectations
will be fixed in I46ff2e9b09b67e4e0d79cccf8c04936f17281fcb.
Change-Id: Ic3c84520bff8c3fc82512d03ff6ab97d21b8fb7a
diff --git a/tests/msc_vlr/msc_vlr_test_call.c b/tests/msc_vlr/msc_vlr_test_call.c
index 42d55bf..3e9da62 100644
--- a/tests/msc_vlr/msc_vlr_test_call.c
+++ b/tests/msc_vlr/msc_vlr_test_call.c
@@ -334,8 +334,177 @@
comment_end();
}
+static void test_call_mo_to_unknown()
+{
+ struct gsm_mncc mncc = {
+ .imsi = IMSI,
+ };
+
+ comment_start();
+
+ fake_time_start();
+
+ standard_lu();
+
+ BTW("after a while, a new conn sends a CM Service Request. VLR responds with Auth Req, 2nd auth vector");
+ auth_request_sent = false;
+ auth_request_expect_rand = "c187a53a5e6b9d573cac7c74451fd46d";
+ auth_request_expect_autn = "1843a645b98d00005b2d666af46c45d9";
+ cm_service_result_sent = RES_NONE;
+ ms_sends_msg("052478"
+ "03575886" /* classmark 2 */
+ "089910070000106005" /* IMSI */);
+ OSMO_ASSERT(g_conn);
+ OSMO_ASSERT(g_conn->conn_fsm);
+ OSMO_ASSERT(g_conn->vsub);
+ VERBOSE_ASSERT(cm_service_result_sent, == RES_NONE, "%d");
+ VERBOSE_ASSERT(auth_request_sent, == true, "%d");
+
+ btw("needs auth, not yet accepted");
+ EXPECT_ACCEPTED(false);
+
+ /* On UTRAN */
+ btw("MS sends Authen Response, VLR accepts and sends SecurityModeControl");
+ expect_security_mode_ctrl(NULL, "1159ec926a50e98c034a6b7d7c9f418d");
+ ms_sends_msg("0554" "7db47cf7" "2104" "f81e4dc7"); /* 2nd vector's res, s.a. */
+ VERBOSE_ASSERT(security_mode_ctrl_sent, == true, "%d");
+ VERBOSE_ASSERT(cm_service_result_sent, == RES_NONE, "%d");
+
+ btw("MS sends SecurityModeControl acceptance, VLR accepts; above Ciphering is an implicit CM Service Accept");
+ ms_sends_security_mode_complete();
+ VERBOSE_ASSERT(cm_service_result_sent, == RES_NONE, "%d");
+
+ BTW("a call is initiated");
+
+ btw("SETUP gets forwarded to MNCC");
+ cc_to_mncc_expect_tx(IMSI, MNCC_SETUP_IND);
+ ms_sends_msg("0385" /* CC, seq = 2 -> 0x80 | CC Setup = 0x5 */
+ "0406600402000581" /* Bearer Capability */
+ "5e038121f3" /* Called Number BCD */
+ "15020100" /* CC Capabilities */
+ "4008" /* Supported Codec List */
+ "04026000" /* UMTS: AMR 2 | AMR */
+ "00021f00" /* GSM: HR AMR | FR AMR | GSM EFR | GSM HR | GSM FR */
+ );
+ OSMO_ASSERT(cc_to_mncc_tx_confirmed);
+ mncc.callref = cc_to_mncc_tx_got_callref;
+
+ btw("MNCC says that's fine");
+ dtap_expect_tx("8302" /* CC: Call Proceeding */);
+ mncc_sends_to_cc(MNCC_CALL_PROC_REQ, &mncc);
+ OSMO_ASSERT(dtap_tx_confirmed);
+
+ btw("But the other side's MSISDN could not be resolved, MNCC tells us to cancel");
+ dtap_expect_tx("832d" /* CC: Release Request */);
+ mncc_sends_to_cc(MNCC_REL_REQ, &mncc);
+
+ dtap_expect_tx("832d" /* CC: Release Request */);
+ fake_time_passes(10, 23);
+
+ expect_iu_release();
+ cc_to_mncc_expect_tx("", MNCC_REL_CNF);
+ ms_sends_msg("036a" /* CC: Release Complete */);
+ OSMO_ASSERT(cc_to_mncc_tx_confirmed);
+ OSMO_ASSERT(iu_release_sent);
+ OSMO_ASSERT(cc_to_mncc_tx_confirmed);
+
+ EXPECT_CONN_COUNT(0);
+ clear_vlr();
+ comment_end();
+}
+
+static void test_call_mo_to_unknown_timeout()
+{
+ struct gsm_mncc mncc = {
+ .imsi = IMSI,
+ };
+
+ comment_start();
+
+ fake_time_start();
+
+ standard_lu();
+
+ BTW("after a while, a new conn sends a CM Service Request. VLR responds with Auth Req, 2nd auth vector");
+ auth_request_sent = false;
+ auth_request_expect_rand = "c187a53a5e6b9d573cac7c74451fd46d";
+ auth_request_expect_autn = "1843a645b98d00005b2d666af46c45d9";
+ cm_service_result_sent = RES_NONE;
+ ms_sends_msg("052478"
+ "03575886" /* classmark 2 */
+ "089910070000106005" /* IMSI */);
+ OSMO_ASSERT(g_conn);
+ OSMO_ASSERT(g_conn->conn_fsm);
+ OSMO_ASSERT(g_conn->vsub);
+ VERBOSE_ASSERT(cm_service_result_sent, == RES_NONE, "%d");
+ VERBOSE_ASSERT(auth_request_sent, == true, "%d");
+
+ btw("needs auth, not yet accepted");
+ EXPECT_ACCEPTED(false);
+
+ /* On UTRAN */
+ btw("MS sends Authen Response, VLR accepts and sends SecurityModeControl");
+ expect_security_mode_ctrl(NULL, "1159ec926a50e98c034a6b7d7c9f418d");
+ ms_sends_msg("0554" "7db47cf7" "2104" "f81e4dc7"); /* 2nd vector's res, s.a. */
+ VERBOSE_ASSERT(security_mode_ctrl_sent, == true, "%d");
+ VERBOSE_ASSERT(cm_service_result_sent, == RES_NONE, "%d");
+
+ btw("MS sends SecurityModeControl acceptance, VLR accepts; above Ciphering is an implicit CM Service Accept");
+ ms_sends_security_mode_complete();
+ VERBOSE_ASSERT(cm_service_result_sent, == RES_NONE, "%d");
+
+ BTW("a call is initiated");
+
+ btw("SETUP gets forwarded to MNCC");
+ cc_to_mncc_expect_tx(IMSI, MNCC_SETUP_IND);
+ ms_sends_msg("0385" /* CC, seq = 2 -> 0x80 | CC Setup = 0x5 */
+ "0406600402000581" /* Bearer Capability */
+ "5e038121f3" /* Called Number BCD */
+ "15020100" /* CC Capabilities */
+ "4008" /* Supported Codec List */
+ "04026000" /* UMTS: AMR 2 | AMR */
+ "00021f00" /* GSM: HR AMR | FR AMR | GSM EFR | GSM HR | GSM FR */
+ );
+ OSMO_ASSERT(cc_to_mncc_tx_confirmed);
+ mncc.callref = cc_to_mncc_tx_got_callref;
+
+ btw("MNCC says that's fine");
+ dtap_expect_tx("8302" /* CC: Call Proceeding */);
+ mncc_sends_to_cc(MNCC_CALL_PROC_REQ, &mncc);
+ OSMO_ASSERT(dtap_tx_confirmed);
+
+ btw("But the other side's MSISDN could not be resolved, MNCC tells us to cancel");
+ dtap_expect_tx("832d" /* CC: Release Request */);
+ mncc_sends_to_cc(MNCC_REL_REQ, &mncc);
+
+ btw("Despite our repeated CC Release Requests, the MS does not respond anymore");
+ dtap_expect_tx("832d" /* CC: Release Request */);
+ fake_time_passes(10, 23);
+
+ btw("The CC Release times out and we still properly clear the conn");
+ btw("ERROR: currently this is broken and will be fixed in a subsequent commit");
+ cc_to_mncc_expect_tx("", MNCC_REL_CNF);
+ expect_iu_release(); /* <-- will currently not work out */
+ fake_time_passes(10, 23);
+ OSMO_ASSERT(cc_to_mncc_tx_confirmed);
+ /* EXPECTING ERROR: here, we should be able to do:
+ OSMO_ASSERT(iu_release_sent);
+ EXPECT_CONN_COUNT(0);
+ */
+ BTW("This test is currently expecting erratic behavior:");
+ EXPECT_CONN_COUNT(1);
+ /* need to free manually for the sake of this test suite */
+ msc_subscr_conn_close(g_conn, 0);
+
+ clear_vlr();
+ comment_end();
+}
+
+
msc_vlr_test_func_t msc_vlr_tests[] = {
test_call_mo,
test_call_mt,
+ test_call_mo_to_unknown,
+ test_call_mo_to_unknown_timeout,
NULL
};