fix msc_vlr_test_call.c
Substantial parts of the CC / MNCC call establishment were so far completely
missing from the msc_vlr_test_call.c tests. With my new insights on CC and MNCC
procedures, complete the tests.
Root reason: since I am going to re-order the sequence of events to enable
codec negotiation via SDP in MNCC, I want to have comprehensive tests of the CC
procedures to see the effect as diffs in the test output.
Change-Id: Ie995e264eb1e3dd9558a1753ff6f9b55c1d084e1
diff --git a/tests/msc_vlr/msc_vlr_test_call.c b/tests/msc_vlr/msc_vlr_test_call.c
index 065af25..392d38d 100644
--- a/tests/msc_vlr/msc_vlr_test_call.c
+++ b/tests/msc_vlr/msc_vlr_test_call.c
@@ -213,6 +213,25 @@
OSMO_ASSERT(cc_to_mncc_tx_confirmed);
mncc.callref = cc_to_mncc_tx_got_callref;
+ btw("MNCC replies with MNCC_RTP_CREATE, causing MGW endpoint CRCX to RAN");
+ expect_crcx(RTP_TO_RAN);
+ mncc_sends_to_cc(MNCC_RTP_CREATE, &mncc);
+ OSMO_ASSERT(got_crcx);
+
+ btw("MGW acknowledges the CRCX, triggering Assignment");
+ expect_iu_rab_assignment();
+ crcx_ok(RTP_TO_RAN);
+ OSMO_ASSERT(iu_rab_assignment_sent);
+
+ btw("Assignment succeeds, triggering CRCX to CN");
+ expect_crcx(RTP_TO_CN);
+ ms_sends_assignment_complete(CODEC_AMR_8000_1);
+ OSMO_ASSERT(got_crcx);
+
+ btw("CN RTP address is available, trigger MNCC_RTP_CREATE");
+ cc_to_mncc_expect_tx("", MNCC_RTP_CREATE);
+ crcx_ok(RTP_TO_CN);
+
btw("MNCC says that's fine");
dtap_expect_tx("8302" /* CC: Call Proceeding */);
mncc_sends_to_cc(MNCC_CALL_PROC_REQ, &mncc);
@@ -298,11 +317,32 @@
dtap_expect_tx("0305" /* CC: Setup */);
ms_sends_security_mode_complete();
+ btw("MS confirms call, we create a RAN-side RTP and forward MNCC_CALL_CONF_IND");
+ expect_crcx(RTP_TO_RAN);
cc_to_mncc_expect_tx(IMSI, MNCC_CALL_CONF_IND);
ms_sends_msg("8348" /* CC: Call Confirmed */
"0406600402000581" /* Bearer Capability */
"15020100" /* Call Control Capabilities */
"40080402600400021f00" /* Supported Codec List */);
+ OSMO_ASSERT(got_crcx);
+ OSMO_ASSERT(cc_to_mncc_tx_confirmed);
+
+ btw("MNCC sends MNCC_RTP_CREATE");
+ mncc_sends_to_cc(MNCC_RTP_CREATE, &mncc);
+
+ btw("MGW acknowledges the CRCX to RAN, triggering Assignment");
+ expect_iu_rab_assignment();
+ crcx_ok(RTP_TO_RAN);
+ OSMO_ASSERT(iu_rab_assignment_sent);
+
+ btw("Assignment completes, triggering CRCX to CN");
+ expect_crcx(RTP_TO_CN);
+ ms_sends_assignment_complete(CODEC_AMR_8000_1);
+ OSMO_ASSERT(got_crcx);
+
+ btw("When the CN side RTP address is known, send MNCC_RTP_CREATE");
+ cc_to_mncc_expect_tx("", MNCC_RTP_CREATE);
+ crcx_ok(RTP_TO_CN);
fake_time_passes(1, 23);
@@ -380,13 +420,32 @@
dtap_expect_tx("0305" /* CC: Setup */);
ms_sends_security_mode_complete();
+ btw("MS confirms call, we create a RAN-side RTP and forward MNCC_CALL_CONF_IND");
+ expect_crcx(RTP_TO_RAN);
cc_to_mncc_expect_tx(IMSI, MNCC_CALL_CONF_IND);
ms_sends_msg("8348" /* CC: Call Confirmed */
"0406600402000581" /* Bearer Capability */
"15020100" /* Call Control Capabilities */
"40080402600400021f00" /* Supported Codec List */);
+ OSMO_ASSERT(got_crcx);
OSMO_ASSERT(cc_to_mncc_tx_confirmed);
+ btw("MNCC sends MNCC_RTP_CREATE");
+ mncc_sends_to_cc(MNCC_RTP_CREATE, &mncc);
+
+ btw("MGW acknowledges the CRCX to RAN, triggering Assignment");
+ expect_iu_rab_assignment();
+ crcx_ok(RTP_TO_RAN);
+ OSMO_ASSERT(iu_rab_assignment_sent);
+
+ btw("Assignment completes, triggering CRCX to CN");
+ expect_crcx(RTP_TO_CN);
+ ms_sends_assignment_complete(CODEC_AMR_8000_1);
+ OSMO_ASSERT(got_crcx);
+
+ btw("When the CN side RTP address is known, send MNCC_RTP_CREATE");
+ cc_to_mncc_expect_tx("", MNCC_RTP_CREATE);
+ crcx_ok(RTP_TO_CN);
fake_time_passes(1, 23);
cc_to_mncc_expect_tx("", MNCC_ALERT_IND);
@@ -470,6 +529,25 @@
OSMO_ASSERT(cc_to_mncc_tx_confirmed);
mncc.callref = cc_to_mncc_tx_got_callref;
+ btw("MNCC replies with MNCC_RTP_CREATE, causing MGW endpoint CRCX to RAN");
+ expect_crcx(RTP_TO_RAN);
+ mncc_sends_to_cc(MNCC_RTP_CREATE, &mncc);
+ OSMO_ASSERT(got_crcx);
+
+ btw("MGW acknowledges the CRCX, triggering Assignment");
+ expect_iu_rab_assignment();
+ crcx_ok(RTP_TO_RAN);
+ OSMO_ASSERT(iu_rab_assignment_sent);
+
+ btw("Assignment succeeds, triggering CRCX to CN");
+ expect_crcx(RTP_TO_CN);
+ ms_sends_assignment_complete(CODEC_AMR_8000_1);
+ OSMO_ASSERT(got_crcx);
+
+ btw("CN RTP address is available, trigger MNCC_RTP_CREATE");
+ cc_to_mncc_expect_tx("", MNCC_RTP_CREATE);
+ crcx_ok(RTP_TO_CN);
+
btw("MNCC says that's fine");
dtap_expect_tx("8302" /* CC: Call Proceeding */);
mncc_sends_to_cc(MNCC_CALL_PROC_REQ, &mncc);
@@ -547,6 +625,25 @@
OSMO_ASSERT(cc_to_mncc_tx_confirmed);
mncc.callref = cc_to_mncc_tx_got_callref;
+ btw("MNCC replies with MNCC_RTP_CREATE, causing MGW endpoint CRCX to RAN");
+ expect_crcx(RTP_TO_RAN);
+ mncc_sends_to_cc(MNCC_RTP_CREATE, &mncc);
+ OSMO_ASSERT(got_crcx);
+
+ btw("MGW acknowledges the CRCX, triggering Assignment");
+ expect_iu_rab_assignment();
+ crcx_ok(RTP_TO_RAN);
+ OSMO_ASSERT(iu_rab_assignment_sent);
+
+ btw("Assignment succeeds, triggering CRCX to CN");
+ expect_crcx(RTP_TO_CN);
+ ms_sends_assignment_complete(CODEC_AMR_8000_1);
+ OSMO_ASSERT(got_crcx);
+
+ btw("CN RTP address is available, trigger MNCC_RTP_CREATE");
+ cc_to_mncc_expect_tx("", MNCC_RTP_CREATE);
+ crcx_ok(RTP_TO_CN);
+
btw("MNCC says that's fine");
dtap_expect_tx("8302" /* CC: Call Proceeding */);
mncc_sends_to_cc(MNCC_CALL_PROC_REQ, &mncc);