daniel has uploaded this change for review. (
https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/27110 )
Change subject: WIP: more work towards HNBGW_Tests
......................................................................
WIP: more work towards HNBGW_Tests
Change-Id: I99ddd30fd2a27f2025928006db79388625e26b01
---
M hnbgw/HNBGW_Tests.ttcn
D hnbgw/MSC_ConnHdlr.ttcn
M hnbgw/gen_links.sh
M hnbgw/osmo-hnbgw.cfg
M hnbgw/osmo-stp.cfg
M hnbgw/regen_makefile.sh
A library/RUA_Emulation.ttcn
7 files changed, 790 insertions(+), 181 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks
refs/changes/10/27110/1
diff --git a/hnbgw/HNBGW_Tests.ttcn b/hnbgw/HNBGW_Tests.ttcn
index 750c927..59cda1a 100644
--- a/hnbgw/HNBGW_Tests.ttcn
+++ b/hnbgw/HNBGW_Tests.ttcn
@@ -15,6 +15,7 @@
import from Misc_Helpers all;
import from General_Types all;
+import from GSM_Types all;
import from Osmocom_Types all;
import from IPL4asp_Types all;
@@ -31,23 +32,24 @@
import from TELNETasp_PortType all;
import from HNBAP_Templates all;
+import from HNBAP_PDU_Descriptions all;
+
import from RUA_IEs all;
import from RUA_Templates all;
-import from HNBAP_PDU_Descriptions all;
+import from RUA_Emulation all;
import from Iuh_Emulation all;
import from RANAP_Types all;
+import from RANAP_PDU_Descriptions all;
+import from RANAP_PDU_Contents all;
+import from RANAP_IEs all;
+import from RANAP_Templates all;
+
import from RAN_Adapter all;
-import from BSSAP_Types all;
import from RAN_Adapter all;
import from RAN_Emulation all;
-import from BSSAP_CodecPort all;
-import from IPA_Emulation all;
-import from IPA_CodecPort all;
-import from IPA_Types all;
-
import from MGCP_Emulation all;
import from MGCP_Types all;
@@ -55,8 +57,6 @@
import from MGCP_CodecPort all;
import from SDP_Types all;
-import from MSC_ConnHdlr all;
-
modulepar {
/* IP address at which the HNodeB can be reached */
charstring mp_hnodeb_ip := "127.0.0.1";
@@ -83,16 +83,68 @@
RAN_Configuration mp_sgsn_cfg := {
transport := RANAP_TRANSPORT_IuCS,
sccp_service_type := "mtp3_itu",
- sctp_addr := { 23905, "127.0.0.1", 2905, "127.0.0.1" },
- own_pc := 185, /* 0.23.1 first MSC emulation */
+ sctp_addr := { 23906, "127.0.0.1", 2905, "127.0.0.1" },
+ own_pc := 185, /* 0.23.1 first SGSN emulation */
own_ssn := 142,
peer_pc := 189, /* 0.23.5 osmo-hnbgw */
peer_ssn := 142,
sio := '83'O,
- rctx := 1
+ rctx := 2
};
}
+function MSC_UnitdataCallback(RANAP_PDU ranap) runs on RAN_Emulation_CT return
template RANAP_PDU {
+ // FIXME
+ return ts_RANAP_Reset(ts_RanapCause_om_intervention, cs_domain);
+}
+
+const RanOps MSC_RanOps := {
+ ranap_create_cb := refers(RAN_Emulation.RanapExpectedCreateCallback),
+ ranap_unitdata_cb := refers(MSC_UnitdataCallback),
+ ps_domain := false,
+ decode_dtap := false,
+ role_ms := false,
+ protocol := RAN_PROTOCOL_RANAP,
+ transport := RANAP_TRANSPORT_IuCS,
+ use_osmux := false,
+ sccp_addr_local := omit,
+ sccp_addr_peer := omit
+}
+
+type record TestHdlrParams {
+ integer hnb_idx,
+ hexstring imsi,
+ boolean ps_domain,
+ HnbConfig hnb optional
+};
+
+/* We extend:
+ * RUA_ConnHdlr (for the Iuh side, emulating the HNB)
+ * RAN_ConnHdlr (for the Iu side, emulating the MSC)
+ * MGCP_ConnHdlr (for the MGCP side, emulating the MGW)
+ */
+type component ConnHdlr extends RAN_ConnHdlr, MGCP_ConnHdlr, RUA_ConnHdlr {
+ var integer g_sccp_conn_id;
+
+ var TestHdlrParams g_pars;
+ timer g_Tguard;
+}
+
+
+const MGCPOps MSC_MGCPOps := {
+ create_cb := refers(MGCP_Emulation.ExpectedCreateCallback),
+ unitdata_cb := refers(MGCP_Emulation.DummyUnitdataCallback)
+}
+
+function f_create_ranap_exp(octetstring l3_enc) runs on ConnHdlr {
+ BSSAP_PROC.call(RAN_register:{l3_enc, self}) {
+ [] BSSAP_PROC.getreply(RAN_register:{?, ?}) {};
+ }
+}
+
+
+const integer NUM_HNB := 1;
+
const hexstring ranap_cm_service_req :=
'001340400000060003400100000f40060000f11028b6003a40080000f110ffffffff0010400e0d052411035758a605f44e9d4aef004f400300001c0056400500f1100017'H;
const hexstring ranap_auth_req :=
'00144032000002001040262505120217dc146aeac56cb5ff6d5fb51f47f19220108ca5a6d0c8110000b9e9272498872764003b400100'H;
const hexstring ranap_auth_resp :=
'001440140000010010400d0c0554ccbdd0302104002f3ae4'H;
@@ -100,20 +152,27 @@
const hexstring ranap_rab_ass_req :=
'0000005900000100364052000001003500487824cd80102fa7201a2c0000f44c080a028000514000272028140067400000222814003c40000000503d02000227c03500010a0901a200000000000000000000000000401f4a0000400100'H;
const hexstring iu_release_compl := '20010003000000'H;
+type record HnbConfig {
+ LocationAreaIdentification lai,
+ integer sac
+}
+
type component test_CT extends CTRL_Adapter_CT {
var boolean g_initialized := false;
- var MGCP_Emulation_CT vc_MGCP;
- var Iuh_Emulation_CT vc_Iuh;
-
+ /********************* Iu side */
var RAN_Adapter g_msc;
var RAN_Adapter g_sgsn;
/* SGSN IuPS missing */
- port TELNETasp_PT HNBGWVTY;
- port HNBAP_PT HNBAP;
- port RUA_PT RUA;
+ /********************* Iuh side */
+ var HnbConfig g_hnb_cfg[NUM_HNB];
+ var Iuh_Emulation_CT vc_Iuh[NUM_HNB];
+ var RUA_Emulation_CT vc_RUA[NUM_HNB];
+ port HNBAP_PT HNBAP[NUM_HNB];
+ var MGCP_Emulation_CT vc_MGCP;
+ port TELNETasp_PT HNBGWVTY;
/* global test case guard timer (actual timeout value is set in
f_init()) */
timer T_guard := 30.0;
}
@@ -163,25 +222,49 @@
vc_MGCP.start(MGCP_Emulation.main(ops, pars, id));
}
-/* global initialization function */
-function f_init(charstring id := "HBGW", float guard_timeout := 30.0) runs on
test_CT {
+function f_init_hnodeb(charstring id, integer hnb_idx, RuaOps rua_ops) runs on
test_CT {
+ id := id & "-Iuh" & int2str(hnb_idx);
- T_guard.start(guard_timeout);
- activate(as_Tguard());
-
+ /* Iuh lower layer (RUA/HNBAP demux) */
var Iuh_conn_parameters iuh_pars;
iuh_pars.remote_ip := mp_hnbgw_ip;
iuh_pars.remote_sctp_port := mp_hnbgw_iuh_port;
iuh_pars.local_ip := mp_hnodeb_ip;
- iuh_pars.local_sctp_port := mp_hnodeb_port;
- vc_Iuh := Iuh_Emulation_CT.create(id & "-Iuh");
- connect(self:HNBAP, vc_Iuh:HNBAP);
- connect(self:RUA, vc_Iuh:RUA);
+ iuh_pars.local_sctp_port := mp_hnodeb_port + hnb_idx;
+ vc_Iuh[hnb_idx] := Iuh_Emulation_CT.create(id);
+ connect(self:HNBAP[hnb_idx], vc_Iuh[hnb_idx]:HNBAP);
- vc_Iuh.start(Iuh_Emulation.main(iuh_pars, id & "-Iuh"));
- f_init_mgcp(id);
+ vc_RUA[hnb_idx] := RUA_Emulation_CT.create(id & "-RUA");
+ connect(vc_RUA[hnb_idx]:RUA, vc_Iuh[hnb_idx]:RUA);
- /* MSC */
+ /* Start Iuh side components */
+ vc_Iuh[hnb_idx].start(Iuh_Emulation.main(iuh_pars, id));
+ vc_RUA[hnb_idx].start(RUA_Emulation.main(rua_ops, id & "-RUA"));
+}
+
+/* global initialization function */
+function f_init(charstring id := "HBGW", float guard_timeout := 30.0) runs on
test_CT {
+
+ g_hnb_cfg[0] := {
+ lai := {
+ mcc_mnc := '00101'H,
+ lac := 2342
+ },
+ sac := 55
+ }
+ T_guard.start(guard_timeout);
+ activate(as_Tguard());
+
+ /* RUA/RANAP emulation on top of lower-layer Iuh */
+ var RuaOps rua_ops := {
+ create_cb := refers(IuhRanapCreateCallback),
+ unitdata_cb := refers(IuhRanapUnitdataCallback)
+ };
+ for (var integer i := 0; i < NUM_HNB; i := i+1) {
+ f_init_hnodeb(testcasename(), i, rua_ops);
+ }
+
+ /* MSC emulation */
var RanOps ranops := {
ranap_create_cb :=
refers(RAN_Emulation.RanapExpectedCreateCallback),
ranap_unitdata_cb := omit,
@@ -197,9 +280,12 @@
f_ran_adapter_init(g_msc, mp_msc_cfg, "HNBGW_Test", ranops);
f_ran_adapter_start(g_msc);
- /* SGSN*/
+ /* SGSN emulation */
+ ranops.ps_domain := true;
+ f_ran_adapter_init(g_sgsn, mp_sgsn_cfg, "HNBGW_Test", ranops);
+ f_ran_adapter_start(g_sgsn);
-
+ f_init_mgcp(id);
f_init_vty("VirtHNBGW");
}
@@ -209,43 +295,242 @@
mtc.stop;
}
-/*function f_start_handler(void_fn fn, template (omit) TestHdlrParams pars :=
omit)
-runs on test_CT return MSC_ConnHdlr {
- return f_start_handler_run(f_start_handler_create(pars), fn, pars);
-}*/
+/* helper function to start all of the simulated hNodeBs */
+function f_start_hnbs() runs on test_CT {
+ for (var integer i:= 0; i < NUM_HNB; i := i+1) {
+ f_hnbap_register(i);
+ }
+}
+
+/***********************************************************************
+ * code running in test_CT, preparing start of per-UE ConnHdlr
+ ***********************************************************************/
+
+/* inbound RUA connection establishment on Iuh side */
+function IuhRanapCreateCallback(ContextId context_id,
RUA_IEs.CN_DomainIndicator domain, charstring id)
+runs on RUA_Emulation_CT return RUA_ConnHdlr {
+ log("CreateCallback");
+ return null;
+}
+
+/* inbound RUA connectionless data on Iuh side */
+function IuhRanapUnitdataCallback(RANAP_PDU ranap)
+runs on RUA_Emulation_CT return template RANAP_PDU {
+ log("UnitdataCallback");
+ return omit;
+}
+
+private function f_start_handler_create(TestHdlrParams pars) runs on test_CT
return ConnHdlr {
+ var ConnHdlr vc_conn;
+ var charstring id := testcasename() & int2str(pars.hnb_idx);
+
+ vc_conn := ConnHdlr.create(id);
+
+ /* Iuh RUA part */
+ connect(vc_conn:RUA, vc_RUA[pars.hnb_idx]:CLIENT);
+
+ if (pars.ps_domain) {
+ /* SGSN side */
+ connect(vc_conn:BSSAP, g_sgsn.vc_RAN:CLIENT);
+ connect(vc_conn:BSSAP_PROC, g_sgsn.vc_RAN:PROC);
+ } else {
+ /* MSC side */
+ connect(vc_conn:BSSAP, g_msc.vc_RAN:CLIENT);
+ connect(vc_conn:BSSAP_PROC, g_msc.vc_RAN:PROC);
+ }
+
+ return vc_conn;
+}
+
+private function f_start_handler_run(ConnHdlr vc_conn, void_fn fn,
TestHdlrParams pars) runs on test_CT {
+ var charstring id := testcasename(); // & int2str(pars.ran_idx);
+ /* We cannot use vc_conn.start(f_init_handler(fn, id, pars)); as we
cannot have
+ * a stand-alone 'derefers()' call, see
https://www.eclipse.org/forums/index.php/t/1091364/ */
+ pars.hnb := g_hnb_cfg[pars.hnb_idx];
+ vc_conn.start(derefers(fn)(id, pars));
+}
+
+function f_start_handler_with_pars(void_fn fn, template (value) TestHdlrParams
pars)
+runs on test_CT return ConnHdlr {
+ var ConnHdlr vc_conn;
+ vc_conn := f_start_handler_create(valueof(pars));
+ f_start_handler_run(vc_conn, fn, valueof(pars));
+ return vc_conn;
+}
+
+/***********************************************************************
+ * code running inside per-UE ConnHdlr
+ ***********************************************************************/
+
+type function void_fn(charstring id, TestHdlrParams pars) runs on ConnHdlr;
+
+function f_init_handler(TestHdlrParams pars, float t_guard := 20.0) runs on
ConnHdlr {
+ /* make parameters available via component variable */
+ g_pars := pars;
+ /* start guard timer and activate it as default */
+ g_Tguard.start(t_guard);
+ activate(as_Tguard_ConnHdlr());
+
+ /* TODO: CTRL? */
+ /* TODO: VTY? */
+}
+
+/* global altstep for global guard timer; */
+private altstep as_Tguard_ConnHdlr() runs on ConnHdlr {
+ [] g_Tguard.timeout {
+ setverdict(fail, "Timeout of T_guard");
+ mtc.stop;
+ }
+}
+
+/* send RANAP on Iuh and expect it to show up on Iu */
+function f_iuh2iu(template (present) RANAP_PDU tx, template RANAP_PDU exp_rx
:= omit)
+runs on ConnHdlr return RANAP_PDU {
+ var RANAP_PDU rx;
+ timer T := 5.0;
+
+ if (istemplatekind(exp_rx, "omit")) {
+ exp_rx := tx;
+ }
+
+ RUA.send(tx);
+ T.start;
+
+ alt {
+ [] BSSAP.receive(exp_rx) -> value rx {
+ setverdict(pass);
+ }
+ [] T.timeout {
+ setverdict(fail, "Timeout waiting for Iu ", exp_rx);
+ }
+ }
+ return rx;
+}
+
+/* send RANAP on Iu and expect it to show up on Iuh */
+function f_iu2iuh(template (present) RANAP_PDU tx, template RANAP_PDU exp_rx
:= omit)
+runs on ConnHdlr return RANAP_PDU {
+ var RANAP_PDU rx;
+ timer T := 5.0;
+
+ if (istemplatekind(exp_rx, "omit")) {
+ exp_rx := tx;
+ }
+
+ BSSAP.send(tx);
+ T.start;
+
+ alt {
+ [] RUA.receive(exp_rx) -> value rx {
+ setverdict(pass);
+ }
+ [] T.timeout {
+ setverdict(fail, "Timeout waiting for Iuh ", exp_rx);
+ }
+ }
+ return rx;
+}
+
+/* send RANAP on Iuh and expect it to show up on Iu */
+function f_iuh2iu_connect(template (present) RANAP_PDU tx, template RANAP_PDU
exp_rx := omit)
+runs on ConnHdlr return RANAP_PDU {
+ var RANAP_PDU rx;
+ timer T := 5.0;
+
+ if (istemplatekind(exp_rx, "omit")) {
+ exp_rx := tx;
+ }
+
+ /* create an expect on the Iu side for the random NAS portion */
+ var template (omit) octetstring nas := f_ranap_extract_l3(valueof(tx));
+ f_ran_register_exp(valueof(nas));
+
+ /* send it via Iuh (creating a RUA connection) */
+ RUA.send(RUA_Conn_Req:{g_pars.ps_domain, tx});
+
+ /* expect to receive it on the Iu side */
+ T.start;
+ alt {
+ [] BSSAP.receive(exp_rx) -> value rx {
+ setverdict(pass);
+ }
+ [] T.timeout {
+ setverdict(fail, "Timeout waiting for Iu ", exp_rx);
+ }
+ }
+ return rx;
+}
+
+/* build a RANAP InitialUE based on the TestHdlrParams */
+friend function f_build_initial_ue(TestHdlrParams pars) return RANAP_PDU {
+ var LAI lai := {
+ pLMNidentity := hex2oct(pars.hnb.lai.mcc_mnc),
+ lAC := int2oct(pars.hnb.lai.lac, 2),
+ iE_Extensions := omit
+ };
+ var SAI sai := {
+ pLMNidentity := lai.pLMNidentity,
+ lAC := lai.lAC,
+ sAC := int2oct(pars.hnb.sac, 2),
+ iE_Extensions := omit
+ }
+ var octetstring nas := f_rnd_octstring(10);
+ var IuSignallingConnectionIdentifier sigc_id :=
int2bit(f_rnd_int(1000), 24);
+ var GlobalRNC_ID grnc_id := {
+ pLMNidentity := lai.pLMNidentity,
+ rNC_ID := 2342
+ }
+
+ if (pars.ps_domain) {
+ var RAC rac := '00'O;
+ return valueof(ts_RANAP_initialUE_PS(lai, rac, sai, nas,
sigc_id, grnc_id));
+ } else {
+ return valueof(ts_RANAP_initialUE_CS(lai, sai, nas, sigc_id,
grnc_id));
+ }
+}
-/*private function f_tc_hnb_register_request(charstring id) runs on
HNBGW_ConnHdlr {
- f_handle_hnbap_hnb_register_req();
- f_sleep(1.0);
-}*/
+/***********************************************************************
+ * HNBAP Testing
+ ***********************************************************************/
-testcase TC_hnb_register() runs on test_CT {
- //var HNBGW_ConnHdlr vc_conn;
- f_init();
- HNBAP.send(tr_HNBAP_HNBRegisterRequest(char2oct("TTCN3 HNodeB"),
+
+function f_hnbap_register(integer hnb_idx := 0) runs on test_CT
+{
+ HNBAP[hnb_idx].send(tr_HNBAP_HNBRegisterRequest(char2oct("TTCN3
HNodeB"),
'00F110'O,
- int2bit(1, 28),
+ int2bit(1 + hnb_idx, 28),
int2oct(2, 2),
int2oct(3, 1),
int2oct(4, 2)));
alt {
- [] HNBAP.receive(tr_HNBAP_HNBRegisterAccept(?)) {
+ [] HNBAP[hnb_idx].receive(tr_HNBAP_HNBRegisterAccept(?)) {
setverdict(pass);
}
- [] HNBAP.receive(IUHEM_Event:?) {
+ [] HNBAP[hnb_idx].receive(IUHEM_Event:?) {
repeat;
}
}
+}
+
+testcase TC_hnb_register() runs on test_CT {
+ //var HNBGW_ConnHdlr vc_conn;
+ f_init();
+ f_hnbap_register(0);
f_sleep(10.0);
f_shutdown_helper();
}
+/***********************************************************************
+ * RUA / RANAP Testing
+ ***********************************************************************/
+
testcase TC_RAB_Assignment() runs on test_CT {
//var HNBGW_ConnHdlr vc_conn;
f_init();
+/*
f_sleep(3.0);
HNBAP.send(tr_HNBAP_HNBRegisterRequest(char2oct("TTCN3 HNodeB"),
'00F110'O,
@@ -263,16 +548,90 @@
}
}
- RUA.send(tr_RUA_Connect(cs_domain, int2bit(23, 24), normal_call,
hex2oct(ranap_cm_service_req)));
+ //RUA.send(tr_RUA_Connect(cs_domain, int2bit(23, 24), normal_call,
hex2oct(ranap_cm_service_req)));
//RANAP.receive();
-
+*/
f_sleep(2.0);
f_shutdown_helper();
}
+private template (value) TestHdlrParams
+t_pars(integer imsi_suffix, boolean ps_domain := false,integer hnb_idx := 0)
:= {
+ hnb_idx := hnb_idx,
+ imsi := f_gen_imsi(imsi_suffix),
+ ps_domain := ps_domain,
+ hnb := omit /* filled in later */
+}
+
+/* Create an Iuh connection; send InitialUE; expect it to appear on new SCCP
conenction */
+friend function f_tc_initial_ue(charstring id, TestHdlrParams pars) runs on
ConnHdlr {
+ f_init_handler(pars);
+ var RANAP_PDU tx := f_build_initial_ue(g_pars);
+ f_iuh2iu_connect(tx);
+}
+testcase TC_ranap_cs_initial_ue() runs on test_CT {
+ var ConnHdlr vc_conn;
+
+ f_init();
+ f_start_hnbs();
+
+ vc_conn := f_start_handler_with_pars(refers(f_tc_initial_ue),
t_pars(1));
+ vc_conn.done;
+}
+testcase TC_ranap_ps_initial_ue() runs on test_CT {
+ var ConnHdlr vc_conn;
+
+ f_init();
+ f_start_hnbs();
+
+ vc_conn := f_start_handler_with_pars(refers(f_tc_initial_ue), t_pars(2,
true));
+ vc_conn.done;
+}
+
+
+/* Create an Iuh connection; send InitialUE; transceive data both directions */
+friend function f_tc_ranap_bidir(charstring id, TestHdlrParams pars) runs on
ConnHdlr {
+ f_init_handler(pars);
+
+ /* HNB -> MSC: InitialUE */
+ f_iuh2iu_connect(f_build_initial_ue(g_pars));
+
+ /* MSC <- HNB: DirectTransfer */
+ f_iu2iuh(ts_RANAP_DirectTransfer(f_rnd_octstring(10)));
+ /* MSC -> HNB: DirectTransfer */
+ f_iuh2iu(ts_RANAP_DirectTransfer(f_rnd_octstring(10)));
+
+ /* HNB <- MSC: CommonID */
+ f_iu2iuh(ts_RANAP_CommonId(hex2oct(pars.imsi)));
+}
+testcase TC_ranap_cs_bidir() runs on test_CT {
+ var ConnHdlr vc_conn;
+
+ f_init();
+ f_start_hnbs();
+
+ vc_conn := f_start_handler_with_pars(refers(f_tc_ranap_bidir),
t_pars(3));
+ vc_conn.done;
+}
+testcase TC_ranap_ps_bidir() runs on test_CT {
+ var ConnHdlr vc_conn;
+
+ f_init();
+ f_start_hnbs();
+
+ vc_conn := f_start_handler_with_pars(refers(f_tc_ranap_bidir),
t_pars(4, true));
+ vc_conn.done;
+}
+
+
+
+
control {
execute(TC_hnb_register());
- execute(TC_RAB_Assignment());
+ execute(TC_ranap_cs_initial_ue());
+ execute(TC_ranap_ps_initial_ue());
+ execute(TC_ranap_cs_bidir());
+ execute(TC_ranap_ps_bidir());
}
}
diff --git a/hnbgw/MSC_ConnHdlr.ttcn b/hnbgw/MSC_ConnHdlr.ttcn
deleted file mode 100644
index 290ee82..0000000
--- a/hnbgw/MSC_ConnHdlr.ttcn
+++ /dev/null
@@ -1,125 +0,0 @@
-module MSC_ConnHdlr {
-
-/* MSC connection handler for hnbgs tests in TTCN-3
- * (C) sysmocom - s.f.m.c. GmbH
- * All rights reserved.
- *
- * Released under the terms of GNU General Public License, Version 2 or
- * (at your option) any later version.
- *
- * SPDX-License-Identifier: GPL-2.0-or-later
- */
-
-import from Misc_Helpers all;
-import from General_Types all;
-import from Osmocom_Types all;
-import from IPL4asp_Types all;
-
-import from Osmocom_CTRL_Functions all;
-import from Osmocom_CTRL_Types all;
-import from Osmocom_CTRL_Adapter all;
-
-import from StatsD_Types all;
-import from StatsD_CodecPort all;
-import from StatsD_CodecPort_CtrlFunct all;
-import from StatsD_Checker all;
-
-import from Osmocom_VTY_Functions all;
-import from TELNETasp_PortType all;
-
-import from HNBAP_Templates all;
-import from RUA_IEs all;
-import from RUA_Templates all;
-import from HNBAP_PDU_Descriptions all;
-
-import from Iuh_Emulation all;
-
-import from RANAP_Types all;
-import from RANAP_PDU_Contents all;
-import from RANAP_PDU_Descriptions all;
-import from RANAP_Templates all;
-import from RAN_Adapter all;
-
-import from BSSAP_Types all;
-import from RAN_Adapter all;
-import from RAN_Emulation all;
-import from BSSAP_CodecPort all;
-import from IPA_Emulation all;
-import from IPA_CodecPort all;
-import from IPA_Types all;
-
-import from MGCP_Emulation all;
-import from MGCP_Types all;
-import from MGCP_Templates all;
-import from MGCP_CodecPort all;
-import from SDP_Types all;
-
-import from SCCPasp_Types all;
-import from BSSAP_Types all;
-
-import from MobileL3_Types all;
-import from MobileL3_CommonIE_Types all;
-import from MobileL3_RRM_Types all;
-//import from L3_Templates all;
-
-import from TELNETasp_PortType all;
-import from Osmocom_VTY_Functions all;
-import from TCCConversion_Functions all;
-
-type record TestHdlrParams {
- hexstring imsi,
- integer media_nr
-};
-
-function f_get_test_hdlr_pars() return TestHdlrParams {
- var TestHdlrParams pars := {
- imsi := f_rnd_imsi('00101'H),
- media_nr := 1
- };
-
- return pars;
-}
-
-type component MSC_ConnHdlr extends RAN_ConnHdlr, MGCP_ConnHdlr { /*
RUA_ConnHdlr? Iuh_Emulation */
- var integer g_sccp_conn_id;
-
- port RAN_PROC_PT RAN;
- port IPA_MGCP_PT MGCP_CLIENT;
- var TestHdlrParams g_pars;
-
-}
-
-function f_MscConnHdlr_init(integer i, HostName bts, HostName mgw) runs on
MSC_ConnHdlr {
-}
-
-function UnitdataCallback(RANAP_PDU ranap) runs on RAN_Emulation_CT return
template RANAP_PDU {
- // FIXME
- return ts_RANAP_Reset(ts_RanapCause_om_intervention, cs_domain);
-}
-
-const RanOps MSC_RanOps := {
- ranap_create_cb := refers(RAN_Emulation.RanapExpectedCreateCallback),
- ranap_unitdata_cb := refers(UnitdataCallback),
- ps_domain := false,
- decode_dtap := false,
- role_ms := false,
- protocol := RAN_PROTOCOL_RANAP,
- transport := BSSAP_TRANSPORT_AoIP,
- use_osmux := false,
- sccp_addr_local := omit,
- sccp_addr_peer := omit
-}
-
-const MGCPOps MSC_MGCPOps := {
- create_cb := refers(MGCP_Emulation.ExpectedCreateCallback),
- unitdata_cb := refers(MGCP_Emulation.DummyUnitdataCallback)
-}
-
-function f_create_ranap_exp(octetstring l3_enc) runs on MSC_ConnHdlr {
- RAN.call(RAN_register:{l3_enc, self}) {
- [] RAN.getreply(RAN_register:{?, ?}) {};
- }
-}
-
-
-}
\ No newline at end of file
diff --git a/hnbgw/gen_links.sh b/hnbgw/gen_links.sh
index 197815c..5224980 100755
--- a/hnbgw/gen_links.sh
+++ b/hnbgw/gen_links.sh
@@ -95,8 +95,9 @@
FILES="Iuh_Types.ttcn Iuh_CodecPort.ttcn Iuh_CodecPort_CtrlFunctDef.cc
Iuh_CodecPort_CtrlFunct.ttcn Iuh_Emulation.ttcn DNS_Helpers.ttcn "
FILES+="MGCP_Emulation.ttcn MGCP_Types.ttcn MGCP_Templates.ttcn
MGCP_CodecPort.ttcn MGCP_CodecPort_CtrlFunct.ttcn
MGCP_CodecPort_CtrlFunctDef.cc "
FILES+="RAN_Adapter.ttcnpp RAN_Emulation.ttcnpp BSSAP_CodecPort.ttcn
SCCP_Templates.ttcn "
-FILES+="Misc_Helpers.ttcn General_Types.ttcn Osmocom_Types.ttcn
Osmocom_VTY_Functions.ttcn Native_Functions.ttcn Native_FunctionDefs.cc
IPA_Types.ttcn IPA_CodecPort.ttcn IPA_CodecPort_CtrlFunct.ttcn
IPA_CodecPort_CtrlFunctDef.cc IPA_Emulation.ttcnpp Osmocom_CTRL_Types.ttcn
Osmocom_CTRL_Functions.ttcn Osmocom_CTRL_Adapter.ttcn RTP_CodecPort.ttcn
RTP_CodecPort_CtrlFunct.ttcn RTP_CodecPort_CtrlFunctDef.cc RTP_Emulation.ttcn
IuUP_Types.ttcn IuUP_EncDec.cc IuUP_Emulation.ttcn "
+FILES+="Misc_Helpers.ttcn General_Types.ttcn Osmocom_Types.ttcn GSM_Types.ttcn
Osmocom_VTY_Functions.ttcn Native_Functions.ttcn Native_FunctionDefs.cc
IPA_Types.ttcn IPA_CodecPort.ttcn IPA_CodecPort_CtrlFunct.ttcn
IPA_CodecPort_CtrlFunctDef.cc IPA_Emulation.ttcnpp Osmocom_CTRL_Types.ttcn
Osmocom_CTRL_Functions.ttcn Osmocom_CTRL_Adapter.ttcn RTP_CodecPort.ttcn
RTP_CodecPort_CtrlFunct.ttcn RTP_CodecPort_CtrlFunctDef.cc RTP_Emulation.ttcn
IuUP_Types.ttcn IuUP_EncDec.cc IuUP_Emulation.ttcn "
FILES+="StatsD_Types.ttcn StatsD_CodecPort.ttcn
StatsD_CodecPort_CtrlFunct.ttcn StatsD_CodecPort_CtrlFunctdef.cc
StatsD_Checker.ttcn "
+FILES+="RUA_Emulation.ttcn "
gen_links $DIR $FILES
diff --git a/hnbgw/osmo-hnbgw.cfg b/hnbgw/osmo-hnbgw.cfg
index dab3e39..4a87bd8 100644
--- a/hnbgw/osmo-hnbgw.cfg
+++ b/hnbgw/osmo-hnbgw.cfg
@@ -49,7 +49,7 @@
point-code 0.23.4
sccp-address sgsn
routing-indicator PC
- point-code 0.1.1
+ point-code 0.23.1
hnbgw
log-prefix hnb-id
iuh
diff --git a/hnbgw/osmo-stp.cfg b/hnbgw/osmo-stp.cfg
index 7aa8735..85d60e9 100644
--- a/hnbgw/osmo-stp.cfg
+++ b/hnbgw/osmo-stp.cfg
@@ -37,8 +37,16 @@
as virt-msc0 m3ua
asp virt-msc0-0
routing-key 1 0.23.4
+ asp virt-sgsn0-0 23906 2905 m3ua
+ local-ip 127.0.0.1
+ remote-ip 127.0.0.1
+ as virt-sgsn0 m3ua
+ asp virt-sgsn0-0
+ routing-key 2 0.23.1
+
route-table system
update route 0.23.4 7.255.7 linkset virt-msc0
+ update route 0.23.1 7.255.7 linkset virt-sgsn0
listen m3ua 2905
accept-asp-connections dynamic-permitted
diff --git a/hnbgw/regen_makefile.sh b/hnbgw/regen_makefile.sh
index 1584335..47f7ee8 100755
--- a/hnbgw/regen_makefile.sh
+++ b/hnbgw/regen_makefile.sh
@@ -31,11 +31,7 @@
export CPPFLAGS_TTCN3="
-DIPA_EMULATION_CTRL
- -DIPA_EMULATION_MGCP
- -DIPA_EMULATION_SCCP
-DRAN_EMULATION_RANAP
- -DRAN_EMULATION_CTRL
- -DRAN_EMULATION_MGCP
-DUSE_MTP3_DISTRIBUTOR
"
diff --git a/library/RUA_Emulation.ttcn b/library/RUA_Emulation.ttcn
new file mode 100644
index 0000000..23b4a7a
--- /dev/null
+++ b/library/RUA_Emulation.ttcn
@@ -0,0 +1,370 @@
+module RUA_Emulation {
+
+/* RUA_Emulation runs on top of Iuh_Emulation. It multiplexes/demultiplexes
+ * the individuao connections, so there can be separate TTCN-3 components
+ * handling each of the connections (one connection per UE).
+ *
+ * The RUA_Emulation.main() function processes RUA messages from the Iuh stack
+ * via the RUA_PT, and dispatches them to the per-connection components.
+ *
+ * Outbound RUA connections are initiated by sending a FIXME primitive to the
+ * RUA_Emulation component.
+ *
+ * For each new inbound connection, the RuaOps.create_cb() is called. It can
create
+ * or resolve a TTCN-3 component, and returns a component reference to which
that inbound
+ * connection is routed/dispatched.
+ *
+ * If a pre-existing component wants to register to handle future inbound
connection,
+ * it can do so by registering an "expect" with the expected RANAP payload.
+
+ * FIXME
+
+ * (C) 2022 by Harald Welte <[email protected]>
+ * All rights reserved.
+ *
+ * Released under the terms of GNU General Public License, Version 2 or
+ * (at your option) any later version.
+ */
+
+import from General_Types all;
+import from Osmocom_Types all;
+
+import from Iuh_Emulation all;
+
+import from RUA_Templates all;
+//import from RUA_Constants all;
+import from RUA_PDU_Descriptions all;
+import from RUA_IEs all;
+
+import from RANAP_PDU_Descriptions all;
+//import from RANAP_Constants all;
+import from RANAP_IEs all;
+import from RANAP_Types all;
+import from RANAP_Templates all;
+
+modulepar {
+ integer mp_max_context_id := hex2int('FFFFFF'H);
+}
+
+
+/* General "base class" component definition, of which specific implementations
+ * derive themselves by means of the "extends" feature */
+type component RUA_ConnHdlr {
+ port RUA_Conn_PT RUA;
+}
+
+
+/* port between individual per-connection components and this dispatcher */
+type port RUA_Conn_PT message {
+ inout RANAP_PDU,
+ RUA_Conn_Req;
+} with { extension "internal" };
+
+type record RUA_Conn_Req {
+ boolean ps_domain,
+ RANAP_PDU ranap
+};
+
+type bitstring ContextId length(24); // with { variant "FIELDLENGTH(24)" };
+
+/* represents a single RANAP connection over RUA */
+type record ConnectionData {
+ RUA_ConnHdlr comp_ref,
+ RUA_IEs.CN_DomainIndicator domain,
+ integer context_id
+}
+
+type component RUA_Emulation_CT {
+ /* port to the bottom side (Iuh) */
+ port RUA_PT RUA;
+
+ /* ports to the upper side (per-connection components) */
+ port RUA_Conn_PT CLIENT;
+
+ /* use 16 as this is also the number of SCCP connections that
SCCP_Emulation can handle */
+ var ConnectionData ConnectionTable[16];
+
+ /* pending expected incoming connections */
+ //var ExpectData ExpectTable[8];
+
+ /* tables for mapping inbound unitdata (like paging) */
+ //var ImsiMapping ImsiTable[16];
+
+ /* procedure based port to register for incoming connections */
+ //port RUA_PROC_PT PROC;
+
+ var charstring g_rua_id;
+ var RuaOps g_rua_ops;
+}
+
+type function RanapCreateCallback(ContextId context_id,
RUA_IEs.CN_DomainIndicator domain, charstring id)
+runs on RUA_Emulation_CT return RUA_ConnHdlr;
+
+type function RanapUnitdataCallback(RANAP_PDU ranap)
+runs on RUA_Emulation_CT return template RANAP_PDU;
+
+type record RuaOps {
+ RanapCreateCallback create_cb optional,
+ RanapUnitdataCallback unitdata_cb optional
+ //boolean deode_dtap
+ //boolean role_ms
+};
+
+private function f_context_id_known(ContextId context_id)
+runs on RUA_Emulation_CT return boolean {
+ var integer i;
+ for (i := 0; i < sizeof(ConnectionTable); i := i+1) {
+ if (ConnectionTable[i].context_id == bit2int(context_id)){
+ return true;
+ }
+ }
+ return false;
+}
+
+private function f_comp_known(RUA_ConnHdlr client)
+runs on RUA_Emulation_CT return boolean {
+ var integer i;
+ for (i := 0; i < sizeof(ConnectionTable); i := i+1) {
+ if (ConnectionTable[i].comp_ref == client) {
+ return true;
+ }
+ }
+ return false;
+}
+
+/* resolve connection ID by component reference */
+private function f_context_id_by_comp(RUA_ConnHdlr client)
+runs on RUA_Emulation_CT return ContextId {
+ for (var integer i := 0; i < sizeof(ConnectionTable); i := i+1) {
+ if (ConnectionTable[i].comp_ref == client) {
+ return int2bit(ConnectionTable[i].context_id, 24);
+ }
+ }
+ setverdict(fail, "RAN Connection table not found by component ",
client);
+ mtc.stop;
+}
+
+/* resolve ConnectionTable index component reference */
+private function f_idx_by_comp(RUA_ConnHdlr client)
+runs on RUA_Emulation_CT return integer {
+ for (var integer i := 0; i < sizeof(ConnectionTable); i := i+1) {
+ if (ConnectionTable[i].comp_ref == client) {
+ return i;
+ }
+ }
+ setverdict(fail, "RAN Connection table not found by component ",
client);
+ mtc.stop;
+}
+
+private function f_gen_context_id()
+runs on RUA_Emulation_CT return ContextId {
+ var ContextId context_id;
+
+ do {
+ context_id :=
int2bit(float2int(rnd()*int2float(mp_max_context_id)), 24);
+ } while (f_context_id_known(context_id) == true);
+
+ return context_id;
+}
+
+private function f_conn_table_init()
+runs on RUA_Emulation_CT {
+ for (var integer i := 0; i < sizeof(ConnectionTable); i := i+1) {
+ ConnectionTable[i].comp_ref := null;
+ ConnectionTable[i].context_id := -1;
+ }
+/*
+ for (var integer i := 0; i < sizeof(ImsiTable); i := i+1) {
+ ImsiTable[i].comp_ref := null;
+ ImsiTable[i].imsi := omit;
+ ImsiTable[i].tmsi := 'FFFFFFFF'O;
+ }
+*/
+}
+
+private function f_conn_table_add(RUA_ConnHdlr comp_ref,
RUA_IEs.CN_DomainIndicator domain, ContextId context_id)
+runs on RUA_Emulation_CT {
+ var integer int_context_id := bit2int(context_id);
+ for (var integer i := 0; i < sizeof(ConnectionTable); i := i+1) {
+ if (ConnectionTable[i].context_id == -1) {
+ ConnectionTable[i].comp_ref := comp_ref;
+ ConnectionTable[i].domain := domain;
+ ConnectionTable[i].context_id := int_context_id;
+ log("Added conn table entry ", i, comp_ref,
int_context_id);
+ return;
+ }
+ }
+ testcase.stop("RUA Connection table full!");
+}
+
+private function f_conn_table_del(ContextId context_id)
+runs on RUA_Emulation_CT {
+ var integer int_context_id := bit2int(context_id);
+ for (var integer i := 0; i < sizeof(ConnectionTable); i := i+1) {
+ if (ConnectionTable[i].context_id == int_context_id) {
+ log("Deleted conn table entry ", i,
+ ConnectionTable[i].comp_ref, int_context_id);
+ ConnectionTable[i].context_id := -1;
+ return
+ }
+ }
+ setverdict(fail, "RUA Connection table attempt to delete non-existant
", int_context_id);
+ mtc.stop;
+}
+
+
+/* resolve component reference by connection ID */
+private function f_comp_by_context_id(ContextId context_id)
+runs on RUA_Emulation_CT return RUA_ConnHdlr {
+ var integer int_context_id := bit2int(context_id);
+ for (var integer i := 0; i < sizeof(ConnectionTable); i := i+1) {
+ if (ConnectionTable[i].context_id == int_context_id) {
+ return ConnectionTable[i].comp_ref;
+ }
+ }
+ setverdict(fail, "RUA Connection table not found by RUA Context ID ",
int_context_id);
+ mtc.stop;
+}
+
+private function CommonRanapUnitdataCallback(RANAP_PDU ranap)
+runs on RUA_Emulation_CT return template RANAP_PDU {
+ /* TODO: paging */
+ return g_rua_ops.unitdata_cb.apply(ranap);
+}
+
+private function f_handle_userData_RANAP(RUA_ConnHdlr client, RANAP_PDU ranap)
+runs on RUA_Emulation_CT {
+ /* TODO: L3 decoding, if requested */
+ CLIENT.send(ranap) to client;
+}
+
+
+private altstep as_reset_ack() runs on RUA_Emulation_CT {
+ var RUA_PDU rua_clt;
+ [] RUA.receive(tr_RUA_ConnectionlessTransfer(decmatch tr_RANAP_Reset))
-> value rua_clt {
+ var RANAP_PDU rx :=
dec_RANAP_PDU(rua_clt.initiatingMessage.value_.connectionlessTransfer.protocolIEs[0].value_.rANAP_Message);
+ var RANAP_IEs.CN_DomainIndicator dom;
+ dom :=
rx.initiatingMessage.value_.Reset.protocolIEs[1].value_.cN_DomainIndicator;
+
RUA.send(ts_RUA_ConnectionlessTransfer(enc_RANAP_PDU(valueof(ts_RANAP_ResetAck(dom)))));
+ }
+}
+
+private altstep as_main_rua() runs on RUA_Emulation_CT {
+ var RANAP_PDU ranap;
+ var RUA_PDU rua;
+ var octetstring ranap_enc;
+ var ContextId context_id;
+ var RUA_IEs.CN_DomainIndicator domain_ind;
+ var RUA_ConnHdlr vc_conn;
+ var RUA_Conn_Req creq;
+
+ /* RUA -> Client: UNIT-DATA (connectionless RUA) from CN */
+ [] RUA.receive(tr_RUA_ConnectionlessTransfer) -> value rua {
+ ranap :=
dec_RANAP_PDU(rua.initiatingMessage.value_.connectionlessTransfer.protocolIEs[0].value_.rANAP_Message);
+ var template RANAP_PDU resp;
+ resp := CommonRanapUnitdataCallback(ranap);
+ if (isvalue(resp)) {
+
RUA.send(ts_RUA_ConnectionlessTransfer(enc_RANAP_PDU(valueof(resp))));
+ }
+ }
+
+ /* RUA -> Client: new connection from CN */
+ [] RUA.receive(tr_RUA_Connect) -> value rua {
+ domain_ind :=
rua.initiatingMessage.value_.connect_.protocolIEs[0].value_.cN_DomainIndicator;
+ context_id :=
rua.initiatingMessage.value_.connect_.protocolIEs[1].value_.context_ID;
+ ranap_enc :=
rua.initiatingMessage.value_.connect_.protocolIEs[3].value_.rANAP_Message;
+ ranap := dec_RANAP_PDU(ranap_enc);
+ vc_conn := g_rua_ops.create_cb.apply(context_id, domain_ind,
g_rua_id);
+ /* store mapping between client components and RUA contextId */
+ f_conn_table_add(vc_conn, domain_ind, context_id);
+ /* handle user payload */
+ f_handle_userData_RANAP(vc_conn, ranap);
+ }
+
+ /* RUA -> Client: connection-oriented data in existing connection */
+ [] RUA.receive(tr_RUA_DirectTransfer) -> value rua {
+ context_id :=
rua.initiatingMessage.value_.directTransfer.protocolIEs[1].value_.context_ID;
+ vc_conn := f_comp_by_context_id(context_id);
+ ranap_enc :=
rua.initiatingMessage.value_.directTransfer.protocolIEs[2].value_.rANAP_Message;
+ f_handle_userData_RANAP(vc_conn, dec_RANAP_PDU(ranap_enc));
+ }
+
+ /* RUA -> Client: disconnect of an existing connection */
+ [] RUA.receive(tr_RUA_Disconnect) -> value rua {
+ }
+
+ /* RANAP from client through an existing RANAP connection */
+ [] CLIENT.receive(RANAP_PDU:?) -> value ranap sender vc_conn {
+ var integer idx := f_idx_by_comp(vc_conn);
+ context_id := int2bit(ConnectionTable[idx].context_id, 24);
+ domain_ind := ConnectionTable[idx].domain;
+ RUA.send(ts_RUA_DirectTransfer(domain_ind, context_id,
enc_RANAP_PDU(ranap)));
+ }
+
+ /* RANAP from client, for a new RANAP connection */
+ [] CLIENT.receive(RUA_Conn_Req:?) -> value creq sender vc_conn {
+ var octetstring enc_ranap := enc_RANAP_PDU(creq.ranap);
+
+ if (f_comp_known(vc_conn) == false) {
+ /* unknown client, create new connection */
+ context_id := f_gen_context_id();
+ if (creq.ps_domain) {
+ domain_ind := ps_domain;
+ } else {
+ domain_ind := cs_domain;
+ }
+
+ f_conn_table_add(vc_conn, domain_ind, context_id);
+ RUA.send(ts_RUA_Connect(domain_ind, context_id,
normal_call, enc_ranap));
+ } else {
+ /* known client, send via existing component */
+ context_id := f_context_id_by_comp(vc_conn);
+ RUA.send(ts_RUA_DirectTransfer(domain_ind, context_id,
enc_ranap));
+ }
+ }
+
+}
+
+
+
+function f_ranap_reset(RANAP_IEs.CN_DomainIndicator dom) runs on
RUA_Emulation_CT {
+ timer T := 5.0;
+
+ var RANAP_PDU tx :=
valueof(ts_RANAP_Reset(ts_RanapCause_om_intervention,dom));
+ RUA.send(ts_RUA_ConnectionlessTransfer(enc_RANAP_PDU(tx)));
+ T.start;
+ alt {
+ [] RUA.receive(tr_RUA_ConnectionlessTransfer(decmatch
tr_RANAP_ResetAck)) {
+ log("RUA-RANAP: Received RESET-ACK in resposne to RESET, we're
reay to go!");
+ }
+ [] as_reset_ack();
+ [] RUA.receive { repeat; }
+ [] T.timeout {
+ setverdict(fail, "RUA-RANAP: Timeout waiting for RESET-ACK
after sending RESET");
+ mtc.stop;
+ }
+ }
+}
+
+function main(RuaOps ops, charstring id) runs on RUA_Emulation_CT {
+ g_rua_id := id;
+ g_rua_ops := ops;
+ f_conn_table_init();
+ //f_expect_table_init();
+
+ while (true) {
+ alt {
+ [] as_main_rua();
+
+ /*
+ [] PROC.getcall(RUA_Register:{?,?}) -> param(l3_info, vc_hdlr) {
+ f_create_expect(l3_info, vc_hdlr);
+ PROC.reply(RUA_register:{l3_info, vc_hdlr}) to vc_hdlr;
+ }
+ */
+ }
+ }
+}
+
+
+}
--
To view, visit https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/27110
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Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: I99ddd30fd2a27f2025928006db79388625e26b01
Gerrit-Change-Number: 27110
Gerrit-PatchSet: 1
Gerrit-Owner: daniel <[email protected]>
Gerrit-CC: laforge <[email protected]>
Gerrit-MessageType: newchange
