Implement AoIP, port to M3UA SIGTRAN (large addition and refactoring)

This was originally a long series of commits converging to the final result
seen in this patch. It does not make much sense to review the smaller steps'
trial and error, we need to review this entire change as a whole.

Implement AoIP in osmo-msc and osmo-bsc.

Change over to the new libosmo-sigtran API with support for proper
SCCP/M3UA/SCTP stacking, as mandated by 3GPP specifications for the IuCS and
IuPS interfaces.

From here on, a separate osmo-stp process is required for SCCP routing between
OsmoBSC / OsmoHNBGW <-> OsmoMSC / OsmoSGSN

jenkins.sh: build from libosmo-sccp and osmo-iuh master branches now for new
M3UA SIGTRAN.

Patch-by: pmaier, nhofmeyr, laforge
Change-Id: I5ae4e05ee7c57cad341ea5e86af37c1f6b0ffa77

1 files changed, 24 insertions, 6 deletions

diff --git a/tests/msc_vlr/msc_vlr_test_reject_concurrency.c b/tests/msc_vlr/msc_vlr_test_reject_concurrency.c
index 15988584a..2377c19b3 100644
--- a/tests/msc_vlr/msc_vlr_test_reject_concurrency.c
+++ b/tests/msc_vlr/msc_vlr_test_reject_concurrency.c
@@ -39,7 +39,9 @@ void test_reject_2nd_conn()
 	btw("Another Location Update Request from the same subscriber on another connection is rejected");
 	conn1 = g_conn;
 	g_conn = NULL;
+	expect_bssap_clear();
 	ms_sends_msg("050802008168000130089910070000006402");
+	VERBOSE_ASSERT(bssap_clear_sent, == true, "%d");
 	VERBOSE_ASSERT(lu_result_sent, == RES_REJECT, "%d");
 	EXPECT_CONN_COUNT(1);
 
@@ -53,7 +55,9 @@ void test_reject_2nd_conn()
 	VERBOSE_ASSERT(lu_result_sent, == RES_NONE, "%d");
 
 	btw("HLR also sends GSUP _UPDATE_LOCATION_RESULT");
+	expect_bssap_clear();
 	gsup_rx("06010809710000004026f0", NULL);
+	VERBOSE_ASSERT(bssap_clear_sent, == true, "%d");
 
 	btw("LU was successful, and the conn has already been closed");
 	VERBOSE_ASSERT(lu_result_sent, == RES_ACCEPT, "%d");
@@ -83,7 +87,9 @@ void _normal_lu_part2()
 	VERBOSE_ASSERT(lu_result_sent, == RES_NONE, "%d");
 
 	btw("HLR also sends GSUP _UPDATE_LOCATION_RESULT");
+	expect_bssap_clear();
 	gsup_rx("06010809710000004026f0", NULL);
+	VERBOSE_ASSERT(bssap_clear_sent, == true, "%d");
 
 	btw("LU was successful, and the conn has already been closed");
 	VERBOSE_ASSERT(lu_result_sent, == RES_ACCEPT, "%d");
@@ -164,7 +170,7 @@ void _paging_resp_part1()
 	EXPECT_CONN_COUNT(1);
 }
 
-void _paging_resp_part2(int expect_conn_count)
+void _paging_resp_part2(int expect_conn_count, bool expect_clear)
 {
 	btw("MS replies with CP-ACK for received SMS");
 	ms_sends_msg("8904");
@@ -172,8 +178,12 @@ void _paging_resp_part2(int expect_conn_count)
 
 	btw("MS also sends RP-ACK, MSC in turn sends CP-ACK for that");
 	dtap_expect_tx("0904");
+	if (expect_clear)
+		expect_bssap_clear();
 	ms_sends_msg("890106020041020000");
 	VERBOSE_ASSERT(dtap_tx_confirmed, == true, "%d");
+	if (expect_clear)
+		VERBOSE_ASSERT(bssap_clear_sent, == true, "%d");
 
 	btw("SMS is done");
 	EXPECT_CONN_COUNT(expect_conn_count);
@@ -251,7 +261,9 @@ void test_reject_lu_during_cm()
 	EXPECT_CONN_COUNT(1);
 
 	BTW("subscriber detaches");
+	expect_bssap_clear();
 	ms_sends_msg("050130089910070000006402");
+	VERBOSE_ASSERT(bssap_clear_sent, == true, "%d");
 	EXPECT_CONN_COUNT(0);
 
 	clear_vlr();
@@ -272,7 +284,9 @@ void test_reject_cm_during_cm()
 	EXPECT_CONN_COUNT(1);
 
 	BTW("subscriber detaches");
+	expect_bssap_clear();
 	ms_sends_msg("050130089910070000006402");
+	VERBOSE_ASSERT(bssap_clear_sent, == true, "%d");
 	EXPECT_CONN_COUNT(0);
 
 	clear_vlr();
@@ -293,7 +307,9 @@ void test_reject_paging_resp_during_cm()
 	BTW("The original CM Service Request can conclude");
 	btw("a USSD request is serviced");
 	dtap_expect_tx_ussd("Your extension is 46071\r");
+	expect_bssap_clear();
 	ms_sends_msg("0b3b1c15a11302010002013b300b04010f0406aa510c061b017f0100");
+	VERBOSE_ASSERT(bssap_clear_sent, == true, "%d");
 
 	btw("all requests serviced, conn has been released");
 	EXPECT_CONN_COUNT(0);
@@ -313,7 +329,7 @@ void test_reject_paging_resp_during_paging_resp()
 	BTW("MS sends another erratic Paging Response which is dropped silently");
 	ms_sends_msg("06270703305882089910070000006402");
 
-	_paging_resp_part2(0);
+	_paging_resp_part2(0, true);
 
 	clear_vlr();
 	comment_end();
@@ -333,13 +349,13 @@ void test_reject_lu_during_paging_resp()
 	VERBOSE_ASSERT(lu_result_sent, == RES_NONE, "%d");
 	EXPECT_CONN_COUNT(1);
 
-	_paging_resp_part2(0);
+	_paging_resp_part2(0, true);
 
 	clear_vlr();
 	comment_end();
 }
 
-void test_reject_cm_during_paging_resp()
+void test_accept_cm_during_paging_resp()
 {
 	comment_start();
 
@@ -354,10 +370,12 @@ void test_reject_cm_during_paging_resp()
 	EXPECT_CONN_COUNT(1);
 	VERBOSE_ASSERT(g_conn->received_cm_service_request, == true, "%d");
 
-	_paging_resp_part2(1);
+	_paging_resp_part2(1, false);
 
 	BTW("subscriber detaches");
+	expect_bssap_clear();
 	ms_sends_msg("050130089910070000006402");
+	VERBOSE_ASSERT(bssap_clear_sent, == true, "%d");
 	EXPECT_CONN_COUNT(0);
 
 	clear_vlr();
@@ -373,7 +391,7 @@ msc_vlr_test_func_t msc_vlr_tests[] = {
 	test_reject_cm_during_cm,
 	test_reject_paging_resp_during_cm,
 	test_reject_lu_during_paging_resp,
-	test_reject_cm_during_paging_resp,
+	test_accept_cm_during_paging_resp,
 	test_reject_paging_resp_during_paging_resp,
 	NULL
 };