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, 26 insertions, 0 deletions

diff --git a/tests/msc_vlr/msc_vlr_test_no_authen.err b/tests/msc_vlr/msc_vlr_test_no_authen.err
index 015e55b9d..4f4073683 100644
--- a/tests/msc_vlr/msc_vlr_test_no_authen.err
+++ b/tests/msc_vlr/msc_vlr_test_no_authen.err
@@ -103,6 +103,7 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cau
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
 DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
+- BSSAP Clear --RAN_GERAN_A--> MS
 DREF MSISDN:46071: MSC conn use - 1 == 0
 DRLL subscr MSISDN:46071: Freeing subscriber connection
 DREF VLR subscr MSISDN:46071 usage decreases to: 2
@@ -112,6 +113,7 @@ DREF VLR subscr MSISDN:46071 usage decreases to: 1
 <-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: vlr_gsupc_read_cb() returns 0
 - LU was successful, and the conn has already been closed
   lu_result_sent == 1
+  bssap_clear_sent == 1
   llist_count(&net->subscr_conns) == 0
 ---
 - after a while, a new conn sends a CM Service Request
@@ -176,6 +178,7 @@ DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Removing from p
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Deallocated
 DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
+- BSSAP Clear --RAN_GERAN_A--> MS
 DREF MSISDN:46071: MSC conn use - 1 == 1
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_RELEASED}: Freeing instance
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_RELEASED}: Deallocated
@@ -183,6 +186,7 @@ DREF MSISDN:46071: MSC conn use - 1 == 0
 DRLL subscr MSISDN:46071: Freeing subscriber connection
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
   dtap_tx_confirmed == 1
+  bssap_clear_sent == 1
 - all requests serviced, conn has been released
   llist_count(&net->subscr_conns) == 0
 ---
@@ -283,6 +287,7 @@ DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Removing from p
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(901700000004620){PR_ARQ_S_DONE}: Deallocated
 DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
+- BSSAP Clear --RAN_GERAN_A--> MS
 DREF MSISDN:46071: MSC conn use - 1 == 1
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_RELEASED}: Freeing instance
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_RELEASED}: Deallocated
@@ -290,6 +295,7 @@ DREF MSISDN:46071: MSC conn use - 1 == 0
 DRLL subscr MSISDN:46071: Freeing subscriber connection
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
   dtap_tx_confirmed == 1
+  bssap_clear_sent == 1
 - SMS is done, conn is gone
   llist_count(&net->subscr_conns) == 0
 ---
@@ -305,8 +311,10 @@ DREF VLR subscr MSISDN:46071 usage decreases to: 1
 DREF VLR subscr MSISDN:46071 usage decreases to: 0
 DREF freeing VLR subscr MSISDN:46071
 DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, releasing directly without release event.
+- BSSAP Clear --RAN_GERAN_A--> MS
 DREF unknown: MSC conn use - 1 == 0
 DRLL Freeing subscriber connection with NULL subscriber
+  bssap_clear_sent == 1
   llist_count(&net->subscr_conns) == 0
 ===== test_no_authen: SUCCESS
 
@@ -449,12 +457,14 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cau
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
 DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
+- BSSAP Clear --RAN_GERAN_A--> MS
 DREF MSISDN:46071: MSC conn use - 1 == 1
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_RELEASED}: Freeing instance
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_RELEASED}: Deallocated
 DREF MSISDN:46071: MSC conn use - 1 == 0
 DRLL subscr MSISDN:46071: Freeing subscriber connection
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
+  bssap_clear_sent == 1
 - LU was successful, and the conn has already been closed
   llist_count(&net->subscr_conns) == 0
 - Subscriber has the new TMSI
@@ -527,12 +537,14 @@ DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Removing from parent S
 DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Deallocated
 DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
+- BSSAP Clear --RAN_GERAN_A--> MS
 DREF MSISDN:46071: MSC conn use - 1 == 1
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_RELEASED}: Freeing instance
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_RELEASED}: Deallocated
 DREF MSISDN:46071: MSC conn use - 1 == 0
 DRLL subscr MSISDN:46071: Freeing subscriber connection
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
+  bssap_clear_sent == 1
 - all requests serviced, conn has been released
   llist_count(&net->subscr_conns) == 0
 ---
@@ -633,6 +645,7 @@ DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Removing from parent S
 DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Freeing instance
 DVLR Process_Access_Request_VLR(50462976){PR_ARQ_S_DONE}: Deallocated
 DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
+- BSSAP Clear --RAN_GERAN_A--> MS
 DREF MSISDN:46071: MSC conn use - 1 == 1
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_RELEASED}: Freeing instance
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_RELEASED}: Deallocated
@@ -640,6 +653,7 @@ DREF MSISDN:46071: MSC conn use - 1 == 0
 DRLL subscr MSISDN:46071: Freeing subscriber connection
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
   dtap_tx_confirmed == 1
+  bssap_clear_sent == 1
 - SMS is done, conn is gone
   llist_count(&net->subscr_conns) == 0
 ---
@@ -776,12 +790,14 @@ DVLR vlr_lu_fsm(50462976){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO
 DVLR vlr_lu_fsm(50462976){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(50462976){VLR_ULA_S_DONE}: Deallocated
 DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
+- BSSAP Clear --RAN_GERAN_A--> MS
 DREF MSISDN:46071: MSC conn use - 1 == 1
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_RELEASED}: Freeing instance
 DMM Subscr_Conn(50462976){SUBSCR_CONN_S_RELEASED}: Deallocated
 DREF MSISDN:46071: MSC conn use - 1 == 0
 DRLL subscr MSISDN:46071: Freeing subscriber connection
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
+  bssap_clear_sent == 1
 - LU was successful, and the conn has already been closed
   llist_count(&net->subscr_conns) == 0
 - subscriber has the new TMSI
@@ -804,8 +820,10 @@ DREF VLR subscr MSISDN:46071 usage decreases to: 1
 DREF VLR subscr MSISDN:46071 usage decreases to: 0
 DREF freeing VLR subscr MSISDN:46071
 DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, releasing directly without release event.
+- BSSAP Clear --RAN_GERAN_A--> MS
 DREF unknown: MSC conn use - 1 == 0
 DRLL Freeing subscriber connection with NULL subscriber
+  bssap_clear_sent == 1
   llist_count(&net->subscr_conns) == 0
 ===== test_no_authen_tmsi: SUCCESS
 
@@ -946,12 +964,14 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cau
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
 DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
+- BSSAP Clear --RAN_GERAN_A--> MS
 DREF MSISDN:46071: MSC conn use - 1 == 1
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_RELEASED}: Freeing instance
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_RELEASED}: Deallocated
 DREF MSISDN:46071: MSC conn use - 1 == 0
 DRLL subscr MSISDN:46071: Freeing subscriber connection
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
+  bssap_clear_sent == 1
 - LU was successful, and the conn has already been closed
   lu_result_sent == 1
   llist_count(&net->subscr_conns) == 0
@@ -972,8 +992,10 @@ DREF VLR subscr MSISDN:46071 usage decreases to: 1
 DREF VLR subscr MSISDN:46071 usage decreases to: 0
 DREF freeing VLR subscr MSISDN:46071
 DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, releasing directly without release event.
+- BSSAP Clear --RAN_GERAN_A--> MS
 DREF unknown: MSC conn use - 1 == 0
 DRLL Freeing subscriber connection with NULL subscriber
+  bssap_clear_sent == 1
   llist_count(&net->subscr_conns) == 0
 ===== test_no_authen_imei: SUCCESS
 
@@ -1138,12 +1160,14 @@ DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cau
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Freeing instance
 DVLR vlr_lu_fsm(901700000004620){VLR_ULA_S_DONE}: Deallocated
 DMM msc_subscr_conn_close(vsub=MSISDN:46071, cause=2): no conn fsm, releasing directly without release event.
+- BSSAP Clear --RAN_GERAN_A--> MS
 DREF MSISDN:46071: MSC conn use - 1 == 1
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_RELEASED}: Freeing instance
 DMM Subscr_Conn(901700000004620){SUBSCR_CONN_S_RELEASED}: Deallocated
 DREF MSISDN:46071: MSC conn use - 1 == 0
 DRLL subscr MSISDN:46071: Freeing subscriber connection
 DREF VLR subscr MSISDN:46071 usage decreases to: 1
+  bssap_clear_sent == 1
 - LU was successful, and the conn has already been closed
   lu_result_sent == 1
   llist_count(&net->subscr_conns) == 0
@@ -1165,8 +1189,10 @@ DREF VLR subscr MSISDN:46071 usage decreases to: 1
 DREF VLR subscr MSISDN:46071 usage decreases to: 0
 DREF freeing VLR subscr MSISDN:46071
 DMM msc_subscr_conn_close(vsub=unknown, cause=0): no conn fsm, releasing directly without release event.
+- BSSAP Clear --RAN_GERAN_A--> MS
 DREF unknown: MSC conn use - 1 == 0
 DRLL Freeing subscriber connection with NULL subscriber
+  bssap_clear_sent == 1
   llist_count(&net->subscr_conns) == 0
 ===== test_no_authen_tmsi_imei: SUCCESS