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osmo-ttcn3-hacks
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bsc: Start MGCP_Emulation and extend MSC_ConnectionHandler for MGCP 

forward-ported by Harald Welte

Change-Id: I1f316a9ed5859670348ea7aa352604020d6b09f5
This commit is contained in:
Daniel Willmann 2018-01-17 12:44:35 +01:00 committed by Harald Welte
parent 3826a1bd1d
commit 191e0d9260
2 changed files with 39 additions and 3 deletions
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27
bsc/BSC_Tests.ttcn
View File

@ -31,6 +31,7 @@ import from IPA_Emulation all;
import from IPA_Types all;
import from RSL_Types all;
import from RSL_Emulation all;
import from MGCP_Emulation all;
import from Osmocom_CTRL_Functions all;
import from Osmocom_CTRL_Types all;
@ -59,6 +60,8 @@ type component test_CT extends BSSAP_Adapter_CT, CTRL_Adapter_CT {
/* array of per-BTS RSL test ports */
port IPA_RSL_PT IPA_RSL[NUM_BTS];
var MGCP_Emulation_CT vc_MGCP;
/* are we initialized yet */
var boolean g_initialized := false;
@ -74,6 +77,8 @@ modulepar {
integer mp_bsc_rsl_port := 3003;
/* port number to which to establish the IPA CTRL connection */
integer mp_bsc_ctrl_port := 4249;
/* IP address at which the test binds */
charstring mp_test_ip := "127.0.0.1";
}
type record IPA_Client {
@ -176,6 +181,24 @@ altstep as_Tguard() runs on test_CT {
}
}
function f_init_mgcp(charstring id) runs on test_CT {
id := id & "-MGCP";
var MGCPOps ops := {
create_cb := refers(MGCP_Emulation.ExpectedCreateCallback),
unitdata_cb := refers(MGCP_Emulation.DummyUnitdataCallback)
};
var MGCP_conn_parameters mgcp_pars := {
callagent_ip := mp_bsc_ip,
callagent_udp_port := 2727,
mgw_ip := mp_test_ip,
mgw_udp_port := 2427
};
vc_MGCP := MGCP_Emulation_CT.create(id);
vc_MGCP.start(MGCP_Emulation.main(ops, mgcp_pars, id));
}
/* global initialization function
* \param nr_bts Number of BTSs we should start/bring up
* \param handler_mode Start an RSL_Emulation_CT component (true) or not (false) */
@ -196,6 +219,8 @@ function f_init(integer nr_bts := NUM_BTS, boolean handler_mode := false) runs o
}
f_ipa_ctrl_start(mp_bsc_ip, mp_bsc_ctrl_port);
f_init_mgcp("VirtMSC");
for (i := 0; i < nr_bts; i := i+1) {
/* wait until osmo-bts-omldummy has respawned */
f_wait_oml(i, "degraded", 5.0);
@ -1197,8 +1222,10 @@ function f_start_handler(void_fn fn, charstring id) runs on test_CT return MSC_C
vc_conn := MSC_ConnHdlr.create(id);
connect(vc_conn:BSSMAPEM, vc_BSSMAP:PROC);
connect(vc_conn:MGCP_PROC, vc_MGCP:MGCP_PROC);
connect(vc_conn:RSL, bts[0].rsl.vc_RSL:CLIENT_PT);
connect(vc_conn:BSSAP, vc_BSSMAP:CLIENT);
connect(vc_conn:MGCP, vc_MGCP:MGCP_CLIENT);
vc_conn.start(derefers(fn)(id));
return vc_conn;
}

15
bsc/MSC_ConnectionHandler.ttcn
View File

@ -10,6 +10,7 @@ import from BSSMAP_Templates all;
import from MGCP_Types all;
import from MGCP_Templates all;
import from MGCP_Emulation all;
import from SDP_Types all;
import from RSL_Emulation all;
@ -24,7 +25,7 @@ import from L3_Templates all;
/* this component represents a single subscriber connection at the MSC.
* There is a 1:1 mapping between SCCP connections and BSSAP_ConnHdlr components.
* We inherit all component variables, ports, functions, ... from BSSAP_ConnHdlr */
type component MSC_ConnHdlr extends BSSAP_ConnHdlr, RSL_DchanHdlr {
type component MSC_ConnHdlr extends BSSAP_ConnHdlr, RSL_DchanHdlr, MGCP_ConnHdlr {
/* SCCP Connecction Identifier for the underlying SCCP connection */
var integer g_sccp_conn_id;
@ -55,6 +56,10 @@ const BssmapOps MSC_BssmapOps := {
role_ms := false
}
const MGCPOps MSC_MGCPOps := {
create_cb := refers(MGCP_Emulation.ExpectedCreateCallback)
}
type enumerated MSC_State {
MSC_STATE_NONE,
MSC_STATE_WAIT_ASS_COMPL,
@ -65,7 +70,7 @@ type enumerated MSC_State {
}
/* register an expect with the BSSMAP core */
private function f_create_exp(octetstring l3_enc) runs on MSC_ConnHdlr {
private function f_create_bssmap_exp(octetstring l3_enc) runs on MSC_ConnHdlr {
BSSMAPEM.call(BSSMAPEM_register:{l3_enc, self}) {
[] BSSMAPEM.getreply(BSSMAPEM_register:{?, ?}) {};
}
@ -92,7 +97,7 @@ function f_create_chan_and_exp(TestHdlrParams pars) runs on MSC_ConnHdlr {
/* call helper function for CHAN_RQD -> IMM ASS ->EST_IND */
RSL_Emulation.f_chan_est(pars.ra, l3_enc, pars.link_id, pars.fn);
f_create_exp(l3_enc);
f_create_bssmap_exp(l3_enc);
}
function f_rsl_reply(template PDU_ML3_MS_NW l3, RSL_Message orig) runs on MSC_ConnHdlr {
@ -184,10 +189,14 @@ runs on MSC_ConnHdlr return PDU_BSSAP {
crcx_seen := true;
repeat;
}
/* mgw CRCX goes here */
[crcx_seen] RSL.receive(tr_RSL_IPA_MDCX(g_chan_nr, ?)) -> value rsl{
RSL.send(ts_RSL_IPA_MDCX_ACK(g_chan_nr, 1, 1, 1, 1));
repeat;
}
/* mgw MGCX goes here */
[exp_compl] BSSAP.receive(tr_BSSMAP_AssignmentComplete) {
setverdict(fail, "Received non-matching ASSIGNMENT COMPLETE");
}