IuCS: implement msc_call_assignment() for IuCS

Send IuCS RAB Activation upon MNCC_CALL_PROC_REQ.

Implement function msc_call_assignment(): decide between sending A-iface BSSMAP
Assignment Request or IuCS RAB Assignment Request.

Implement iu_rab_act_cs() to send the IuCS RAB Assignment Request. The IP
address and port of the MGCPGW sent in the RAB Assignment are still hardcoded.

The A-interface extension is not implemented yet.

Declare ranap_new_msg_rab_assign_voice() to avoid including
ranap_msg_factory.h, which would require adding ASN1 CFLAGS to Makefile.am.

The mgcpgw_client as well as some more osmo-iuh functions are now linked from
libmsc, hence add some dummy stubs to libiudummy and db_test.c.

Change-Id: Iaae51d1fbbfc28fad1c0b85e161d53d80a420a19

1 files changed, 11 insertions, 0 deletions

diff --git a/openbsc/tests/db/db_test.c b/openbsc/tests/db/db_test.c
index 755a6e9eb..372806e7b 100644
--- a/openbsc/tests/db/db_test.c
+++ b/openbsc/tests/db/db_test.c
@@ -22,6 +22,7 @@
 #include <openbsc/db.h>
 #include <openbsc/gsm_subscriber.h>
 #include <openbsc/gsm_04_11.h>
+#include <openbsc/mgcp.h>
 
 #include <osmocom/core/application.h>
 
@@ -254,3 +255,13 @@ int main()
 
 /* stubs */
 void vty_out() {}
+unsigned int mgcpgw_client_next_endpoint(struct mgcpgw_client *client)
+{ return 0; }
+int mgcpgw_client_tx_crcx(struct mgcpgw_client *client,
+			  uint16_t rtp_endpoint, unsigned int call_id,
+			  enum mgcp_connection_mode mode)
+{ return -ENOTSUP; }
+const char *mgcpgw_client_remote_addr_str(struct mgcpgw_client *mgcp)
+{ return "0.0.0.0"; }
+uint32_t mgcpgw_client_remote_addr_n(struct mgcpgw_client *mgcp)
+{ return 0; }