105 lines
2.5 KiB
Plaintext
105 lines
2.5 KiB
Plaintext
module SGSN_Components {
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/*
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* Osmocom PCU test suite in TTCN-3, components for BSSGP handlng
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* (C) 2018-2019 Harald Welte <laforge@gnumonks.org>
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* (C) 2020 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>
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* All rights reserved.
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*
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* Released under the terms of GNU General Public License, Version 2 or
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* (at your option) any later version.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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import from BSSGP_Types all;
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import from BSSGP_Emulation all;
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import from NS_Types all;
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import from NS_Emulation all;
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import from GPRS_Context all;
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modulepar {
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BssgpConfig mp_gb_cfg := {
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nsei := 1234,
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bvci := 1234,
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cell_id := {
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ra_id := {
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lai := {
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mcc_mnc := '262F42'H, lac := 13135
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},
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rac := 0
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},
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cell_id := 20960
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},
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sgsn_role := true,
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depth := BSSGP_DECODE_DEPTH_BSSGP
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};
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NSConfiguration mp_nsconfig := {
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local_udp_port := 23000,
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local_ip := "127.0.0.1",
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remote_udp_port := 21000,
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remote_ip := "127.0.0.1",
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nsvci := 0,
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nsei := 2342,
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role_sgsn := true,
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handle_sns := true
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};
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}
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/* FIXME: merge this into BSSGP_Client_CT ? */
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type component bssgp_CT extends BSSGP_Client_CT {
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var NS_CT ns_component;
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var BSSGP_CT bssgp_component;
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var boolean g_initialized := false;
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}
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/* FIXME: merge this into BSSGP_Client_CT ? */
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function f_init_bssgp() runs on bssgp_CT {
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var MmContext mmctx := {
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imsi := '262420000000001'H,
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tlli := 'FFFFFFFF'O,
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n_u := 0
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};
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if (g_initialized == true) {
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return;
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}
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g_initialized := true;
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/* create a new NS component */
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ns_component := NS_CT.create;
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bssgp_component := BSSGP_CT.create;
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/* connect our BSSGP port to the BSSGP Emulation */
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connect(self:BSSGP[0], bssgp_component:BSSGP_SP);
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connect(self:BSSGP_SIG[0], bssgp_component:BSSGP_SP_SIG);
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connect(self:BSSGP_PROC[0], bssgp_component:BSSGP_PROC);
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/* connect lower-end of BSSGP with BSSGP_CODEC_PORT (maps to NS_PT*/
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connect(bssgp_component:BSCP, ns_component:NS_SP);
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/* connect lower-end of NS emulation to NS_CODEC_PORT (on top of IPl4) */
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map(ns_component:NSCP, system:NS_CODEC_PORT);
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ns_component.start(NSStart(mp_nsconfig));
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bssgp_component.start(BssgpStart(mp_gb_cfg));
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f_bssgp_client_register(mmctx.imsi, mmctx.tlli, mp_gb_cfg.cell_id);
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}
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/* Establish BSSGP connection to PCU */
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function f_bssgp_establish() runs on BSSGP_Client_CT {
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timer T:= 10.0;
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T.start
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alt {
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[] BSSGP[0].receive(t_BssgpStsInd(?, ?, BVC_S_UNBLOCKED)) { }
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[] BSSGP[0].receive { repeat; }
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[] T.timeout {
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setverdict(fail, "Timeout establishing BSSGP connection");
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mtc.stop;
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}
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}
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T.stop
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log("BSSGP successfully initialized");
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}
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}
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