module GBProxy_Tests { /* Osmocom GBProxy test suite in TTCN-3 * (C) 2020 sysmocom - s.f.m.c. GmbH * All rights reserved. * * Author: Daniel Willmann * 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 General_Types all; import from Osmocom_Types all; import from Misc_Helpers all; import from GSM_Types all; import from Native_Functions all; import from NS_Types all; import from NS_Emulation all; import from BSSGP_Types all; import from BSSGP_Emulation all; import from SCCPasp_Types all; import from Osmocom_Gb_Types all; import from MobileL3_CommonIE_Types all; import from MobileL3_GMM_SM_Types all; import from MobileL3_Types all; import from L3_Templates all; import from L3_Common all; import from TELNETasp_PortType all; import from Osmocom_VTY_Functions all; import from LLC_Types all; import from LLC_Templates all; import from GSM_RR_Types all; /* mcc_mnc is 24.008 10.5.5.15 encoded. 262 42 */ const BcdMccMnc c_mcc_mnc := '262F42'H; /* 48.016 section 6.1.4.2: The default maximum information field size of 1600 octets shall be supported on the Gb interface */ const integer max_fr_info_size := 1600; modulepar { boolean mp_enable_bss_load_sharing := false; /* SGSN NS configuration */ NSConfigurations mp_nsconfig_sgsn := { { nsei := 101, role_sgsn := true, handle_sns := false, nsvc := { { provider := { ip := { address_family := AF_INET, local_udp_port := 7777, local_ip := "127.0.0.1", remote_udp_port := 23000, remote_ip := "127.0.0.1" } }, nsvci := 101 } } } }; /* BSS NSEI start at 2000 + x * NSVCI start from value of NSEI + 100 * UDP port is NSVCI * 10 */ NSConfigurations mp_nsconfig_pcu := { { nsei := 2001, role_sgsn := false, handle_sns := false, nsvc := { { provider := { ip := { address_family := AF_INET, local_udp_port := 21010, local_ip := "127.0.0.1", remote_udp_port := 23000, remote_ip := "127.0.0.1" } }, nsvci := 2101 } } }, { nsei := 2002, role_sgsn := false, handle_sns := false, nsvc := { { provider := { ip := { address_family := AF_INET, local_udp_port := 21020, local_ip := "127.0.0.1", remote_udp_port := 23000, remote_ip := "127.0.0.1" } }, nsvci := 2102 } } }, { nsei := 2003, role_sgsn := false, handle_sns := false, nsvc := { { provider := { ip := { address_family := AF_INET, local_udp_port := 21030, local_ip := "127.0.0.1", remote_udp_port := 23000, remote_ip := "127.0.0.1" } }, nsvci := 2103 } } } }; /* BVCI are NSEI*10 + x * The first NSE only has one BVC, the second one 2 and so on * The Cell ID is BVCI + 10000 * LAC/RAC are configured in such a way that: * LAC 13135 is present once in NSE(2001), twice in NSE(2002) and once in NSE(2003) * LAC 13300 is present twice in NSE(2003) * RAI 13135-1 is present in NSE(2002) and NSE(2003) * RAI 13300-0 is present twice in NSE(2003) */ BssgpConfigs mp_gbconfigs := { { nsei := 2001, sgsn_role := false, bvc := { { bvci := 20011, cell_id := { ra_id := { lai := { mcc_mnc := c_mcc_mnc, lac := 13135 }, rac := 0 }, cell_id := 30011 }, depth := BSSGP_DECODE_DEPTH_BSSGP, create_cb := refers(BSSGP_Emulation.DefaultCreateCallback) } } }, { nsei := 2002, sgsn_role := false, bvc := { { bvci := 20021, cell_id := { ra_id := { lai := { mcc_mnc := c_mcc_mnc, lac := 13135 }, rac := 1 }, cell_id := 30021 }, depth := BSSGP_DECODE_DEPTH_BSSGP, create_cb := refers(BSSGP_Emulation.DefaultCreateCallback) }, { bvci := 20022, cell_id := { ra_id := { lai := { mcc_mnc := c_mcc_mnc, lac := 13135 }, rac := 2 }, cell_id := 30022 }, depth := BSSGP_DECODE_DEPTH_BSSGP, create_cb := refers(BSSGP_Emulation.DefaultCreateCallback) } } }, { nsei := 2003, sgsn_role := false, bvc := { { bvci := 20031, cell_id := { ra_id := { lai := { mcc_mnc := c_mcc_mnc, lac := 13135 }, rac := 1 }, cell_id := 30031 }, depth := BSSGP_DECODE_DEPTH_BSSGP, create_cb := refers(BSSGP_Emulation.DefaultCreateCallback) }, { bvci := 20032, cell_id := { ra_id := { lai := { mcc_mnc := c_mcc_mnc, lac := 13300 }, rac := 0 }, cell_id := 30032 }, depth := BSSGP_DECODE_DEPTH_BSSGP, create_cb := refers(BSSGP_Emulation.DefaultCreateCallback) }, { bvci := 20033, cell_id := { ra_id := { lai := { mcc_mnc := c_mcc_mnc, lac := 13300 }, rac := 0 }, cell_id := 30033 }, depth := BSSGP_DECODE_DEPTH_BSSGP, create_cb := refers(BSSGP_Emulation.DefaultCreateCallback) } } } } }; type record GbInstance { NS_CT vc_NS, BSSGP_CT vc_BSSGP, BSSGP_BVC_CTs vc_BSSGP_BVC, BssgpConfig cfg }; type record of BSSGP_BVC_CT BSSGP_BVC_CTs const integer NUM_PCU := 3; type record of GbInstance GbInstances; type record of BssgpConfig BssgpConfigs; type record of NSConfiguration NSConfigurations; type record of BssgpCellId BssgpCellIds; const integer NUM_SGSN := 1; type component test_CT { var GbInstances g_pcu; var GbInstances g_sgsn; port BSSGP_CT_PROC_PT PROC; port BSSGP_BVC_MGMT_PT SGSN_MGMT; port BSSGP_BVC_MGMT_PT PCU_MGMT; port TELNETasp_PT GBPVTY; var boolean g_initialized := false; var boolean g_use_echo := false; var ro_integer g_roi := {}; timer g_Tguard; }; type component BSSGP_ConnHdlr { /* array of per-BVC ports on the PCU side */ port BSSGP_PT PCU_PTP[NUM_PCU]; port BSSGP_PT PCU_SIG[NUM_PCU]; port BSSGP_PROC_PT PCU_PROC[NUM_PCU]; /* component reference to the component to which we're currently connected */ var BSSGP_BVC_CT pcu_ct[NUM_PCU]; /* BSSGP BVC configuration of the component to which we're currently connected */ var BssgpBvcConfig pcu_bvc_cfg[NUM_PCU]; /* array of per-BVC ports on the SGSN side */ port BSSGP_PT SGSN_PTP[NUM_SGSN]; port BSSGP_PT SGSN_SIG[NUM_SGSN]; port BSSGP_PROC_PT SGSN_PROC[NUM_SGSN]; /* component reference to the component to which we're currently connected */ var BSSGP_BVC_CT sgsn_ct[NUM_PCU]; var BSSGP_ConnHdlrPars g_pars; timer g_Tguard; var LLC_Entities llc; var ro_integer g_roi := {}; } type record SGSN_ConnHdlrNetworkPars { boolean expect_ptmsi, boolean expect_auth, boolean expect_ciph }; type record BSSGP_ConnHdlrPars { /* IMEI of the simulated ME */ hexstring imei, /* IMSI of the simulated MS */ hexstring imsi, /* MSISDN of the simulated MS (probably unused) */ hexstring msisdn, /* P-TMSI allocated to the simulated MS */ OCT4 p_tmsi optional, OCT3 p_tmsi_sig optional, /* TLLI of the simulated MS */ OCT4 tlli, OCT4 tlli_old optional, RoutingAreaIdentificationV ra optional, GbInstances pcu, GbInstances sgsn, float t_guard }; private function f_cellid_to_RAI(in BssgpCellId cell_id) return RoutingAreaIdentificationV { /* mcc_mnc is encoded as of 24.008 10.5.5.15 */ var BcdMccMnc mcc_mnc := cell_id.ra_id.lai.mcc_mnc; var RoutingAreaIdentificationV ret := { mccDigit1 := mcc_mnc[0], mccDigit2 := mcc_mnc[1], mccDigit3 := mcc_mnc[2], mncDigit3 := mcc_mnc[3], mncDigit1 := mcc_mnc[4], mncDigit2 := mcc_mnc[5], lac := int2oct(cell_id.ra_id.lai.lac, 16), rac := int2oct(cell_id.ra_id.rac, 8) } return ret; }; private function f_fix_create_cb(inout BssgpConfig cfg) { for (var integer i := 0; i < lengthof(cfg.bvc); i := i + 1) { if (not isbound(cfg.bvc[i].create_cb)) { cfg.bvc[i].create_cb := refers(BSSGP_Emulation.DefaultCreateCallback) } } } private function f_init_gb_pcu(inout GbInstance gb, charstring id, integer offset) runs on test_CT { var charstring ns_id := id & "-NS(PCU[" & int2str(offset) & "])"; var charstring bssgp_id := id & "-BSSGP(PCU[" & int2str(offset) & "])"; gb.vc_NS := NS_CT.create(ns_id); gb.vc_BSSGP := BSSGP_CT.create(bssgp_id); /* connect lower end of BSSGP emulation with NS upper port */ connect(gb.vc_BSSGP:BSCP, gb.vc_NS:NS_SP); gb.vc_NS.start(NSStart(mp_nsconfig_pcu[offset], ns_id)); gb.vc_BSSGP.start(BssgpStart(gb.cfg, bssgp_id)); for (var integer i := 0; i < lengthof(gb.cfg.bvc); i := i + 1) { connect(self:PROC, gb.vc_BSSGP:PROC); gb.vc_BSSGP_BVC[i] := f_bssgp_get_bvci_ct(gb.cfg.bvc[i].bvci, PROC); disconnect(self:PROC, gb.vc_BSSGP:PROC); connect(self:PCU_MGMT, gb.vc_BSSGP_BVC[i]:MGMT); } connect(self:PCU_MGMT, gb.vc_BSSGP:MGMT); } private function f_init_gb_sgsn(inout GbInstance gb, charstring id, integer offset) runs on test_CT { var charstring ns_id := id & "-NS(SGSN[" & int2str(offset) & "])"; var charstring bssgp_id := id & "-BSSGP(SGSN[" & int2str(offset) & "])"; gb.vc_NS := NS_CT.create(ns_id); gb.vc_BSSGP := BSSGP_CT.create(bssgp_id); /* connect lower end of BSSGP emulation with NS upper port */ connect(gb.vc_BSSGP:BSCP, gb.vc_NS:NS_SP); gb.vc_NS.start(NSStart(mp_nsconfig_sgsn[offset], ns_id)); gb.vc_BSSGP.start(BssgpStart(gb.cfg, bssgp_id)); for (var integer i := 0; i < lengthof(gb.cfg.bvc); i := i + 1) { connect(self:PROC, gb.vc_BSSGP:PROC); gb.vc_BSSGP_BVC[i] := f_bssgp_get_bvci_ct(gb.cfg.bvc[i].bvci, PROC); disconnect(self:PROC, gb.vc_BSSGP:PROC); connect(self:SGSN_MGMT, gb.vc_BSSGP_BVC[i]:MGMT); } connect(self:SGSN_MGMT, gb.vc_BSSGP:MGMT); } private function f_destroy_gb(inout GbInstance gb) runs on test_CT { gb.vc_NS.stop; gb.vc_BSSGP.stop; for (var integer i := 0; i < lengthof(gb.cfg.bvc); i := i + 1) { gb.vc_BSSGP_BVC[i].stop; } } private function f_init_vty() runs on test_CT { map(self:GBPVTY, system:GBPVTY); f_vty_set_prompts(GBPVTY); f_vty_transceive(GBPVTY, "enable"); } type record of integer ro_integer; private function ro_integer_contains(ro_integer r, integer x) return boolean { for (var integer j := 0; j < lengthof(r); j := j+1) { if (r[j] == x) { return true; } } return false; } function f_init(float t_guard := 30.0) runs on test_CT { var ro_integer bvci_unblocked := {}; var BssgpStatusIndication bsi; var integer i; if (g_initialized == true) { return; } g_initialized := true; g_Tguard.start(t_guard); activate(as_gTguard(g_Tguard)); g_sgsn[0].cfg := { nsei := mp_nsconfig_sgsn[0].nsei, sgsn_role := true, bvc := { } } for (i := 0; i < lengthof(mp_gbconfigs); i := i+1) { g_pcu[i].cfg := mp_gbconfigs[i]; /* make sure all have a proper crate_cb, which cannot be specified in config file */ f_fix_create_cb(g_pcu[i].cfg); /* concatenate all the PCU-side BVCs for the SGSN side */ g_sgsn[0].cfg.bvc := g_sgsn[0].cfg.bvc & g_pcu[i].cfg.bvc; } f_init_vty(); for (i := 0; i < lengthof(mp_nsconfig_sgsn); i := i+1) { f_vty_transceive(GBPVTY, "nsvc nsei " & int2str(g_sgsn[i].cfg.nsei) & " force-unconfigured"); } for (i := 0; i < lengthof(mp_nsconfig_pcu); i := i+1) { f_vty_transceive(GBPVTY, "nsvc nsei " & int2str(g_pcu[i].cfg.nsei) & " force-unconfigured"); f_vty_transceive(GBPVTY, "delete-gbproxy-peer " & int2str(g_pcu[i].cfg.nsei) & " only-bvc"); } for (i := 0; i < lengthof(mp_nsconfig_sgsn); i := i+1) { f_init_gb_sgsn(g_sgsn[i], "GbProxy_Test", i); } f_sleep(4.0); for (i := 0; i < lengthof(mp_nsconfig_pcu); i := i+1) { f_init_gb_pcu(g_pcu[i], "GbProxy_Test", i); } /* wait until all BVC are unblocked on both sides */ timer T := 15.0; T.start; alt { [] SGSN_MGMT.receive(BssgpStatusIndication:{*, ?, BVC_S_UNBLOCKED}) -> value bsi { bvci_unblocked := bvci_unblocked & { bsi.bvci }; if (lengthof(bvci_unblocked) != lengthof(g_sgsn[0].cfg.bvc)) { repeat; } } [] SGSN_MGMT.receive(BssgpStatusIndication:{*, ?, ?}) { repeat; } [] SGSN_MGMT.receive(BssgpResetIndication:?) { repeat; } [] SGSN_MGMT.receive { setverdict(fail, "Received unexpected message on SGSN_MGMT"); mtc.stop; } [] PCU_MGMT.receive(BssgpStatusIndication:{*, ?, BVC_S_UNBLOCKED}) -> value bsi { repeat; } [] PCU_MGMT.receive(BssgpStatusIndication:{*, ?, ?}) { repeat; } [] PCU_MGMT.receive(BssgpResetIndication:{0}) { repeat; } [] PCU_MGMT.receive { setverdict(fail, "Received unexpected message on PCU_MGMT"); mtc.stop; } [] T.timeout { setverdict(fail, "Timeout waiting for unblock of all BVCs"); mtc.stop; } } /* iterate over list and check all BVCI */ for (i := 0; i < lengthof(g_sgsn[0].cfg.bvc); i := i+1) { var BssgpBvci bvci := g_sgsn[0].cfg.bvc[i].bvci; if (not ro_integer_contains(bvci_unblocked, bvci)) { setverdict(fail, "BVCI=", bvci, " was not unblocked during start-up"); mtc.stop; } } /* re-start guard timer after all BVCs are up, so it only counts the actual test case */ g_Tguard.start(t_guard); } function f_cleanup() runs on test_CT { var integer i; for (i := 0; i < lengthof(mp_nsconfig_sgsn); i := i+1) { f_destroy_gb(g_sgsn[i]); } for (i := 0; i < lengthof(mp_nsconfig_pcu); i := i+1) { f_destroy_gb(g_pcu[i]); } Misc_Helpers.f_shutdown(__BFILE__, __LINE__, pass); } type function void_fn(charstring id) runs on BSSGP_ConnHdlr; /* helper function to create, connect and start a BSSGP_ConnHdlr component */ function f_start_handler(void_fn fn, charstring id, GbInstances pcu, GbInstances sgsn, integer imsi_suffix, float t_guard := 30.0) runs on test_CT return BSSGP_ConnHdlr { var BSSGP_ConnHdlr vc_conn; var BSSGP_ConnHdlrPars pars := { imei := f_gen_imei(imsi_suffix), imsi := f_gen_imsi(imsi_suffix), msisdn := f_gen_msisdn(imsi_suffix), p_tmsi := omit, p_tmsi_sig := omit, tlli := f_gprs_tlli_random(), tlli_old := omit, ra := omit, pcu := g_pcu, sgsn := g_sgsn, t_guard := t_guard }; vc_conn := BSSGP_ConnHdlr.create(id); vc_conn.start(f_handler_init(fn, id, pars)); return vc_conn; } /* Connect the PCU-side per-BVC ports (PCU/PCU_SIG/PCU_PROC) array slot 'port_idx' to specified per-BVC component */ private function f_connect_to_pcu_bvc(integer port_idx, integer nse_idx, integer bvc_idx) runs on BSSGP_ConnHdlr { var BSSGP_BVC_CT bvc_ct := g_pars.pcu[nse_idx].vc_BSSGP_BVC[bvc_idx] if (PCU_PTP[port_idx].checkstate("Connected")) { /* unregister + disconnect from old BVC */ f_client_unregister(g_pars.imsi, PCU_PROC[port_idx]); disconnect(self:PCU_PTP[port_idx], pcu_ct[port_idx]:BSSGP_SP); disconnect(self:PCU_SIG[port_idx], pcu_ct[port_idx]:BSSGP_SP_SIG); disconnect(self:PCU_PROC[port_idx], pcu_ct[port_idx]:BSSGP_PROC); } /* connect to new BVC and register us */ connect(self:PCU_PTP[port_idx], bvc_ct:BSSGP_SP); connect(self:PCU_SIG[port_idx], bvc_ct:BSSGP_SP_SIG); connect(self:PCU_PROC[port_idx], bvc_ct:BSSGP_PROC); f_client_register(g_pars.imsi, g_pars.tlli, PCU_PROC[port_idx]); pcu_ct[port_idx] := bvc_ct; pcu_bvc_cfg[port_idx] := g_pars.pcu[nse_idx].cfg.bvc[bvc_idx]; } /* Connect the SGSN-side per-BVC ports (SGSN/SGSN_SIG/SGSN_PROC) array slot 'port_idx' to specified per-BVC component */ private function f_connect_to_sgsn_bvc(integer port_idx, BSSGP_BVC_CT bvc_ct) runs on BSSGP_ConnHdlr { if (SGSN_PTP[port_idx].checkstate("Connected")) { /* unregister + disconnect from old BVC */ f_client_unregister(g_pars.imsi, SGSN_PROC[port_idx]); disconnect(self:SGSN_PTP[port_idx], sgsn_ct[port_idx]:BSSGP_SP); disconnect(self:SGSN_SIG[port_idx], sgsn_ct[port_idx]:BSSGP_SP_SIG); disconnect(self:SGSN_PROC[port_idx], sgsn_ct[port_idx]:BSSGP_PROC); } /* connect to new BVC and register us */ connect(self:SGSN_PTP[port_idx], bvc_ct:BSSGP_SP); connect(self:SGSN_SIG[port_idx], bvc_ct:BSSGP_SP_SIG); connect(self:SGSN_PROC[port_idx], bvc_ct:BSSGP_PROC); f_client_register(g_pars.imsi, g_pars.tlli, SGSN_PROC[port_idx]); sgsn_ct[port_idx] := bvc_ct; } private altstep as_gTguard(timer Tguard) { [] Tguard.timeout { setverdict(fail, "Tguard timeout"); mtc.stop; } } /* first function called in every ConnHdlr */ private function f_handler_init(void_fn fn, charstring id, BSSGP_ConnHdlrPars pars) runs on BSSGP_ConnHdlr { var integer i; /* do some common stuff like setting up g_pars */ g_pars := pars; llc := f_llc_create(false); /* default connections on PCU side: First BVC of each NSE/PCU */ for (i := 0; i < lengthof(g_pars.pcu); i := i+1) { f_connect_to_pcu_bvc(port_idx := i, nse_idx := i, bvc_idx := 0); } /* default connections on SGSN side: First BVC of each NSE/SGSN */ for (i := 0; i < lengthof(g_pars.sgsn); i := i+1) { f_connect_to_sgsn_bvc(i, g_pars.sgsn[i].vc_BSSGP_BVC[0]); } g_Tguard.start(pars.t_guard); activate(as_gTguard(g_Tguard)); /* call the user-supplied test case function */ fn.apply(id); } private function f_client_register(hexstring imsi, OCT4 tlli, BSSGP_PROC_PT PT) runs on BSSGP_ConnHdlr { PT.call(BSSGP_register_client:{imsi, tlli}) { [] PT.getreply(BSSGP_register_client:{imsi, tlli}) {}; } } private function f_client_unregister(hexstring imsi, BSSGP_PROC_PT PT) runs on BSSGP_ConnHdlr { PT.call(BSSGP_unregister_client:{imsi}) { [] PT.getreply(BSSGP_unregister_client:{imsi}) {}; } } /* Send 'tx' on PTP-BVCI from PCU; expect 'rx' on SGSN */ friend function f_pcu2sgsn(template (value) PDU_BSSGP tx, template (present) PDU_BSSGP exp_rx, integer pcu_idx := 0, integer sgsn_idx := 0, boolean use_sig := false) runs on BSSGP_ConnHdlr { var PDU_BSSGP rx; timer T := 1.0; if (use_sig) { PCU_SIG[pcu_idx].send(tx); } else { PCU_PTP[pcu_idx].send(tx); } T.start; alt { [use_sig] SGSN_SIG[sgsn_idx].receive(exp_rx) { setverdict(pass); } [not use_sig] SGSN_PTP[sgsn_idx].receive(exp_rx) { setverdict(pass); } [] SGSN_PTP[sgsn_idx].receive(PDU_BSSGP:?) -> value rx { setverdict(fail, "Unexpected BSSGP on SGSN side: ", rx); mtc.stop; } [] SGSN_SIG[sgsn_idx].receive(PDU_BSSGP:?) -> value rx { setverdict(fail, "Unexpected SIG BSSGP on SGSN side: ", rx); mtc.stop; } [] T.timeout { setverdict(fail, "Timeout waiting for BSSGP on SGSN side: ", exp_rx); mtc.stop; } } } /* Send 'tx' on PTP-BVCI from SGSN; expect 'rx' on PCU */ friend function f_sgsn2pcu(template (value) PDU_BSSGP tx, template (present) PDU_BSSGP exp_rx, integer sgsn_idx:= 0, integer pcu_idx := 0, boolean use_sig := false) runs on BSSGP_ConnHdlr { var PDU_BSSGP rx; timer T := 1.0; if (use_sig) { SGSN_SIG[sgsn_idx].send(tx); } else { SGSN_PTP[sgsn_idx].send(tx); } T.start; alt { [use_sig] PCU_SIG[pcu_idx].receive(exp_rx) { setverdict(pass); } [not use_sig] PCU_PTP[pcu_idx].receive(exp_rx) { setverdict(pass); } [] PCU_PTP[pcu_idx].receive(PDU_BSSGP:?) -> value rx { setverdict(fail, "Unexpected BSSGP on PCU side: ", rx); mtc.stop; } [] PCU_SIG[pcu_idx].receive(PDU_BSSGP:?) -> value rx { setverdict(fail, "Unexpected SIG BSSGP on PCU side: ", rx); mtc.stop; } [] T.timeout { setverdict(fail, "Timeout waiting for BSSGP on PCU side: ", exp_rx); mtc.stop; } } } /*********************************************************************** * GlobaLTest_CT: Using the per-NSE GLOBAL ports on PCU + SGSN side ***********************************************************************/ type component GlobalTest_CT extends test_CT { port BSSGP_PT G_PCU[NUM_PCU]; port BSSGP_PT G_SGSN[NUM_SGSN]; }; /* connect the signaling BVC of each NSE to the G_PCU / G_SGSN ports */ private function f_global_init() runs on GlobalTest_CT { var integer i; for (i := 0; i < lengthof(g_sgsn); i := i+1) { connect(self:G_SGSN[i], g_sgsn[i].vc_BSSGP:GLOBAL); } for (i := 0; i < lengthof(g_pcu); i := i+1) { connect(self:G_PCU[i], g_pcu[i].vc_BSSGP:GLOBAL); } } /* connect the first PTP BVC of each NSE to the G_PCU / G_SGSN ports */ private function f_global_init_ptp() runs on GlobalTest_CT { var integer i; for (i := 0; i < lengthof(g_sgsn); i := i+1) { connect(self:G_SGSN[i], g_sgsn[i].vc_BSSGP_BVC[0]:GLOBAL); } for (i := 0; i < lengthof(g_pcu); i := i+1) { connect(self:G_PCU[i], g_pcu[i].vc_BSSGP_BVC[0]:GLOBAL); } } /* Send 'tx' on PTP-BVCI from PCU; expect 'rx' on SGSN */ friend function f_global_pcu2sgsn(template (value) PDU_BSSGP tx, template (present) PDU_BSSGP exp_rx, integer pcu_idx := 0, integer sgsn_idx := 0) runs on GlobalTest_CT { var PDU_BSSGP rx; timer T := 1.0; G_PCU[pcu_idx].send(tx); T.start; alt { [] G_SGSN[sgsn_idx].receive(exp_rx) { setverdict(pass); } [] G_SGSN[sgsn_idx].receive(PDU_BSSGP:?) -> value rx { setverdict(fail, "Unexpected BSSGP on SGSN side: ", rx); mtc.stop; } [] T.timeout { setverdict(fail, "Timeout waiting for BSSGP on SGSN side: ", exp_rx); mtc.stop; } } } /* Send 'tx' on PTP-BVCI from SGSN; expect 'rx' on PCU */ friend function f_global_sgsn2pcu(template (value) PDU_BSSGP tx, template (present) PDU_BSSGP exp_rx, integer sgsn_idx := 0, integer pcu_idx := 0) runs on GlobalTest_CT { var PDU_BSSGP rx; timer T := 1.0; G_SGSN[sgsn_idx].send(tx); T.start; alt { [] G_PCU[pcu_idx].receive(exp_rx) { setverdict(pass); } [] G_PCU[pcu_idx].receive(PDU_BSSGP:?) -> value rx { setverdict(fail, "Unexpected BSSGP on PCU side: ", rx); mtc.stop; } [] T.timeout { setverdict(fail, "Timeout waiting for BSSGP on PCU side: ", exp_rx); mtc.stop; } } } /* TODO: * Detach without Attach * SM procedures without attach / RAU * ATTACH / RAU ** with / without authentication ** with / without P-TMSI allocation * re-transmissions of LLC frames * PDP Context activation ** with different GGSN config in SGSN VTY ** with different PDP context type (v4/v6/v46) ** timeout from GGSN ** multiple / secondary PDP context */ private function f_TC_BVC_bringup(charstring id) runs on BSSGP_ConnHdlr { f_sleep(5.0); setverdict(pass); } testcase TC_BVC_bringup() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_BVC_bringup), testcasename(), g_pcu, g_sgsn, 51); vc_conn.done; f_cleanup(); } friend function f_bssgp_suspend(integer ran_idx := 0) runs on BSSGP_ConnHdlr return OCT1 { var BssgpBvcConfig bvcc := g_pars.pcu[ran_idx].cfg.bvc[0]; timer T := 5.0; var PDU_BSSGP rx_pdu; PCU_SIG[ran_idx].send(ts_BSSGP_SUSPEND(g_pars.tlli, bvcc.cell_id.ra_id)); T.start; alt { [] PCU_SIG[ran_idx].receive(tr_BSSGP_SUSPEND_ACK(g_pars.tlli, bvcc.cell_id.ra_id, ?)) -> value rx_pdu { return rx_pdu.pDU_BSSGP_SUSPEND_ACK.suspend_Reference_Number.suspend_Reference_Number_value; } [] PCU_SIG[ran_idx].receive(tr_BSSGP_SUSPEND_NACK(g_pars.tlli, bvcc.cell_id.ra_id, ?)) -> value rx_pdu { setverdict(fail, "SUSPEND-NACK in response to SUSPEND for TLLI ", g_pars.tlli); mtc.stop; } [] T.timeout { setverdict(fail, "No SUSPEND-ACK in response to SUSPEND for TLLI ", g_pars.tlli); mtc.stop; } } return '00'O; } friend function f_bssgp_resume(OCT1 susp_ref, integer ran_idx := 0) runs on BSSGP_ConnHdlr { var BssgpBvcConfig bvcc := g_pars.pcu[ran_idx].cfg.bvc[0]; timer T := 5.0; PCU_SIG[ran_idx].send(ts_BSSGP_RESUME(g_pars.tlli, bvcc.cell_id.ra_id, susp_ref)); T.start; alt { [] PCU_SIG[ran_idx].receive(tr_BSSGP_RESUME_ACK(g_pars.tlli, bvcc.cell_id.ra_id)); [] PCU_SIG[ran_idx].receive(tr_BSSGP_RESUME_NACK(g_pars.tlli, bvcc.cell_id.ra_id, ?)) { setverdict(fail, "RESUME-NACK in response to RESUME for TLLI ", g_pars.tlli); mtc.stop; } [] T.timeout { setverdict(fail, "No RESUME-ACK in response to SUSPEND for TLLI ", g_pars.tlli); mtc.stop; } } } /* send uplink-unitdata of a variety of different sizes; expect it to show up on SGSN */ private function f_TC_ul_unitdata(charstring id) runs on BSSGP_ConnHdlr { var integer ran_idx := 0; var BssgpBvcConfig bvcc := g_pars.pcu[ran_idx].cfg.bvc[0]; var integer i; for (i := 0; i < max_fr_info_size-4; i := i+4) { var octetstring payload := f_rnd_octstring(i); var template (value) PDU_BSSGP pdu_tx := ts_BSSGP_UL_UD(g_pars.tlli, bvcc.cell_id, payload); /* we cannot use pdu_tx as there are some subtle differences in the length field :/ */ var template (present) PDU_BSSGP pdu_rx := tr_BSSGP_UL_UD(g_pars.tlli, bvcc.cell_id, payload); log("UL-UNITDATA(payload_size=", i); f_pcu2sgsn(pdu_tx, pdu_rx); } setverdict(pass); } testcase TC_ul_unitdata() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_ul_unitdata), testcasename(), g_pcu, g_sgsn, 1); vc_conn.done; /* TODO: start multiple handlers (UEs) on various cells on same and other NSEs */ f_cleanup(); } /* send downlink-unitdata of a variety of different sizes; expect it to show up on PCU */ private function f_TC_dl_unitdata(charstring id) runs on BSSGP_ConnHdlr { var integer i; for (i := 0; i < max_fr_info_size-4; i := i+4) { var octetstring payload := f_rnd_octstring(i); var template (value) PDU_BSSGP pdu_tx := ts_BSSGP_DL_UD(g_pars.tlli, payload, omit, ts_BSSGP_IMSI(g_pars.imsi)); /* we cannot use pdu_tx as there are some subtle differences in the length field :/ */ var template (present) PDU_BSSGP pdu_rx := tr_BSSGP_DL_UD(g_pars.tlli, payload, tr_BSSGP_IMSI(g_pars.imsi)); log("DL-UNITDATA(payload_size=", i); f_sgsn2pcu(pdu_tx, pdu_rx); } setverdict(pass); } testcase TC_dl_unitdata() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_dl_unitdata), testcasename(), g_pcu, g_sgsn, 2); vc_conn.done; /* TODO: start multiple handlers (UEs) on various cells on same and other NSEs */ f_cleanup(); } private function f_TC_ra_capability(charstring id) runs on BSSGP_ConnHdlr { var integer i; for (i := 0; i < 10; i := i+1) { var template (value) PDU_BSSGP pdu_tx := ts_BSSGP_RA_CAP(g_pars.tlli, { ts_RaCapRec_BSSGP }); /* we cannot use pdu_tx as there are some subtle differences in the length field :/ */ var template (present) PDU_BSSGP pdu_rx := tr_BSSGP_RA_CAP(g_pars.tlli, { tr_RaCapRec_BSSGP }) f_sgsn2pcu(pdu_tx, pdu_rx); } setverdict(pass); } testcase TC_ra_capability() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_ra_capability), testcasename(), g_pcu, g_sgsn, 3); vc_conn.done; /* TODO: start multiple handlers (UEs) on various cells on same and other NSEs */ f_cleanup(); } private function f_TC_ra_capability_upd(charstring id) runs on BSSGP_ConnHdlr { var integer i; var OCT1 tag; for (i := 0; i < 10; i := i+1) { tag := int2oct(23 + i, 1); var template (value) PDU_BSSGP pdu_tx := ts_BSSGP_RA_CAP_UPD(g_pars.tlli, tag); /* we cannot use pdu_tx as there are some subtle differences in the length field :/ */ var template (present) PDU_BSSGP pdu_rx := tr_BSSGP_RA_CAP_UPD(g_pars.tlli, tag) f_pcu2sgsn(pdu_tx, pdu_rx); pdu_tx := ts_BSSGP_RA_CAP_UPD_ACK(g_pars.tlli, tag, '42'O); /* we cannot use pdu_tx as there are some subtle differences in the length field :/ */ pdu_rx := tr_BSSGP_RA_CAP_UPD_ACK(g_pars.tlli, tag, '42'O) f_sgsn2pcu(pdu_tx, pdu_rx); } setverdict(pass); } testcase TC_ra_capability_upd() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_ra_capability_upd), testcasename(), g_pcu, g_sgsn, 4); vc_conn.done; /* TODO: start multiple handlers (UEs) on various cells on same and other NSEs */ f_cleanup(); } private function f_TC_radio_status(charstring id) runs on BSSGP_ConnHdlr { var integer i; var BssgpRadioCause cause := BSSGP_RADIO_CAUSE_CONTACT_LOST; for (i := 0; i < 10; i := i+1) { var template (value) PDU_BSSGP pdu_tx := ts_BSSGP_RADIO_STATUS(g_pars.tlli, cause); /* we cannot use pdu_tx as there are some subtle differences in the length field :/ */ var template (present) PDU_BSSGP pdu_rx := tr_BSSGP_RADIO_STATUS(g_pars.tlli, cause) f_pcu2sgsn(pdu_tx, pdu_rx); } setverdict(pass); } testcase TC_radio_status() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_radio_status), testcasename(), g_pcu, g_sgsn, 5); vc_conn.done; /* TODO: start multiple handlers (UEs) on various cells on same and other NSEs */ f_cleanup(); } private function f_TC_suspend() runs on GlobalTest_CT { var integer i; /* TODO: Generate RA ID for each ConnHdlr */ var RoutingAreaIdentification ra_id := g_pcu[0].cfg.bvc[0].cell_id.ra_id; for (i := 0; i < 10; i := i+1) { var OCT4 tlli := f_gprs_tlli_random(); var template (value) PDU_BSSGP pdu_tx := ts_BSSGP_SUSPEND(tlli, ra_id); /* we cannot use pdu_tx as there are some subtle differences in the length field :/ */ var template (present) PDU_BSSGP pdu_rx := tr_BSSGP_SUSPEND(tlli, ra_id); f_global_pcu2sgsn(pdu_tx, pdu_rx); pdu_tx := ts_BSSGP_SUSPEND_ACK(tlli, ra_id, int2oct(i, 1)); /* we cannot use pdu_tx as there are some subtle differences in the length field :/ */ pdu_rx := tr_BSSGP_SUSPEND_ACK(tlli, ra_id, int2oct(i, 1)); f_global_sgsn2pcu(pdu_tx, pdu_rx); /* These messages are simple passed through so just also test sending NACK */ pdu_tx := ts_BSSGP_SUSPEND_NACK(tlli, ra_id, BSSGP_CAUSE_UNKNOWN_MS); /* we cannot use pdu_tx as there are some subtle differences in the length field :/ */ pdu_rx := tr_BSSGP_SUSPEND_NACK(tlli, ra_id, BSSGP_CAUSE_UNKNOWN_MS); f_global_sgsn2pcu(pdu_tx, pdu_rx); } setverdict(pass); } testcase TC_suspend() runs on GlobalTest_CT { f_init(); f_global_init(); f_TC_suspend(); f_cleanup(); } private function f_TC_resume() runs on GlobalTest_CT { var integer i; /* TODO: Generate RA ID for each ConnHdlr */ var RoutingAreaIdentification ra_id := g_pcu[0].cfg.bvc[0].cell_id.ra_id; for (i := 0; i < 10; i := i+1) { var OCT4 tlli := f_gprs_tlli_random(); var template (value) PDU_BSSGP pdu_tx := ts_BSSGP_RESUME(tlli, ra_id, int2oct(i, 1)); /* we cannot use pdu_tx as there are some subtle differences in the length field :/ */ var template (present) PDU_BSSGP pdu_rx := tr_BSSGP_RESUME(tlli, ra_id, int2oct(i, 1)); f_global_pcu2sgsn(pdu_tx, pdu_rx); pdu_tx := ts_BSSGP_RESUME_ACK(tlli, ra_id); /* we cannot use pdu_tx as there are some subtle differences in the length field :/ */ pdu_rx := tr_BSSGP_RESUME_ACK(tlli, ra_id); f_global_sgsn2pcu(pdu_tx, pdu_rx); /* These messages are simple passed through so just also test sending NACK */ pdu_tx := ts_BSSGP_RESUME_NACK(tlli, ra_id, BSSGP_CAUSE_UNKNOWN_MS); /* we cannot use pdu_tx as there are some subtle differences in the length field :/ */ pdu_rx := tr_BSSGP_RESUME_NACK(tlli, ra_id, BSSGP_CAUSE_UNKNOWN_MS); f_global_sgsn2pcu(pdu_tx, pdu_rx); } setverdict(pass); } testcase TC_resume() runs on GlobalTest_CT { f_init(); f_global_init(); f_TC_resume(); f_cleanup(); } /* test the load-sharing between multiple NS-VC on the BSS side */ private function f_TC_dl_ud_unidir(charstring id) runs on BSSGP_ConnHdlr { var integer i; for (i := 0; i < 10; i := i+1) { var octetstring payload := f_rnd_octstring(i); var template (value) PDU_BSSGP pdu_tx := ts_BSSGP_DL_UD(g_pars.tlli, payload, omit, ts_BSSGP_IMSI(g_pars.imsi)); SGSN_PTP[0].send(pdu_tx); } setverdict(pass); } testcase TC_load_sharing_dl() runs on test_CT_NS { const integer num_ue := 10; var BSSGP_ConnHdlr vc_conn[num_ue]; f_init(); /* all BVC are now fully brought up. We disconnect BSSGP from NS on the BSS * side so we get the raw NsUnitdataIndication and hence observe different * NSVCI */ disconnect(g_pcu[0].vc_NS:NS_SP, g_pcu[0].vc_BSSGP:BSCP); connect(g_pcu[0].vc_NS:NS_SP, self:NS); /* there may still be some NS-VCs coming up? After all, the BVC-RESET succeeds after the first * of the NS-VC is ALIVE/UNBLOCKED */ f_sleep(3.0); /* start parallel components generating DL-UNITDATA from the SGSN side */ for (var integer i:= 0; i < num_ue; i := i+1) { vc_conn[i] := f_start_handler(refers(f_TC_dl_ud_unidir), testcasename(), g_pcu, g_sgsn, 5+i); } /* now start counting all the messages that were queued before */ /* TODO: We have a hard-coded assumption of 4 NS-VC in one NSE/NS-VCG here! */ var ro_integer rx_count := { 0, 0, 0, 0 }; timer T := 2.0; T.start; alt { [] as_NsUdiCount(0, rx_count); [] as_NsUdiCount(1, rx_count); [] as_NsUdiCount(2, rx_count); [] as_NsUdiCount(3, rx_count); [] NS.receive(NsUnitdataIndication:{0,?,?,*,*}) { repeat; } /* signaling BVC */ [] NS.receive(NsStatusIndication:?) { repeat; } [] NS.receive { setverdict(fail, "Rx unexpected NS"); mtc.stop; } [] T.timeout { } } for (var integer i := 0; i < lengthof(rx_count); i := i+1) { log("Rx on NSVCI ", mp_nsconfig_pcu[0].nsvc[i].nsvci, ": ", rx_count[i]); if (rx_count[i] == 0) { setverdict(fail, "Data not shared over all NSVC"); } } setverdict(pass); } private altstep as_NsUdiCount(integer nsvc_idx, inout ro_integer roi) runs on test_CT_NS { var NsUnitdataIndication udi; var BssgpBvcConfig bvcc := g_pcu[0].cfg.bvc[0]; [] NS.receive(NsUnitdataIndication:{bvcc.bvci, g_pcu[0].cfg.nsei, mp_nsconfig_pcu[0].nsvc[nsvc_idx].nsvci, *, *}) -> value udi { roi[nsvc_idx] := roi[nsvc_idx] + 1; repeat; } } type component test_CT_NS extends test_CT { port NS_PT NS; }; /*********************************************************************** * PAGING PS procedure ***********************************************************************/ private function f_send_paging_ps(template (value) Paging_Field4 p4, integer sgsn_idx := 0, boolean use_sig := false) runs on BSSGP_ConnHdlr return template (present) PDU_BSSGP { var template (value) PDU_BSSGP pdu_tx; var template (present) PDU_BSSGP pdu_rx; /* we always specify '0' as BVCI in the templates below, as we override it with * 'p4' later anyway */ pdu_rx := tr_BSSGP_PS_PAGING(0); pdu_rx.pDU_BSSGP_PAGING_PS.iMSI := tr_BSSGP_IMSI(g_pars.imsi); if (ispresent(g_pars.p_tmsi)) { pdu_tx := ts_BSSGP_PS_PAGING_PTMSI(0, g_pars.imsi, oct2int(g_pars.p_tmsi)); pdu_rx.pDU_BSSGP_PAGING_PS.pTMSI := tr_BSSGP_TMSI(oct2int(g_pars.p_tmsi)); } else { pdu_tx := ts_BSSGP_PS_PAGING_IMSI(0, g_pars.imsi); pdu_rx.pDU_BSSGP_PAGING_PS.pTMSI := omit; } pdu_tx.pDU_BSSGP_PAGING_PS.paging_Field4 := p4; pdu_rx.pDU_BSSGP_PAGING_PS.paging_Field4 := p4; if (use_sig == false) { SGSN_PTP[sgsn_idx].send(pdu_tx); } else { SGSN_SIG[sgsn_idx].send(pdu_tx); } return pdu_rx; } /* send paging defined by 'p4' on given SGSN-side index (ptp or signaling) and expect one paging to arrive on * specified PCU index */ private function f_send_paging_ps_exp_one_bss(template (value) Paging_Field4 p4, integer sgsn_idx := 0, boolean use_sig := false,integer pcu_idx := 0) runs on BSSGP_ConnHdlr { var template (present) PDU_BSSGP exp_rx; var boolean test_done := false; /* doesn't really make sense: Sending to a single BVCI means the message ends up * at that BVC (cell) only, and paging all over the BSS area is not possible */ exp_rx := f_send_paging_ps(p4, sgsn_idx, use_sig); /* Expect paging to propagate to the one BSS addressed by the BVCI only */ timer T := 2.0; T.start; alt { [not use_sig and not test_done] PCU_PTP[pcu_idx].receive(exp_rx) { setverdict(pass); test_done := true; repeat; } [not use_sig] PCU_SIG[pcu_idx].receive(exp_rx) { setverdict(fail, "Received paging on SIGNALING BVC, expected PTP BVC"); } [use_sig and not test_done] PCU_SIG[pcu_idx].receive(exp_rx) { setverdict(pass); test_done := true; repeat; } [use_sig] PCU_PTP[pcu_idx].receive(exp_rx) { setverdict(fail, "Received paging on PTP BVC, expected SIGNALING BVC"); } [] any from PCU_PTP.receive(exp_rx) { setverdict(fail, "Paging received on unexpected BVC"); } [] any from PCU_SIG.receive(exp_rx) { setverdict(fail, "Paging received on unexpected BVC"); } [] any from PCU_PTP.receive(PDU_BSSGP:{pDU_BSSGP_PAGING_PS:=?}) { setverdict(fail, "Different Paging than expected received PTP BVC"); } [] any from PCU_SIG.receive(PDU_BSSGP:{pDU_BSSGP_PAGING_PS:=?}) { setverdict(fail, "Different Paging than expected on SIGNALING BVC"); } [not test_done] T.timeout { setverdict(fail, "Timeout waiting for paging"); } [test_done] T.timeout; } } /* send a PS-PAGING but don't expect it to show up on any PTP or SIG BVC */ private function f_send_paging_ps_exp_no_bss(template (value) Paging_Field4 p4, integer sgsn_idx := 0, boolean use_sig := false) runs on BSSGP_ConnHdlr { var template (present) PDU_BSSGP exp_rx; exp_rx := f_send_paging_ps(p4, sgsn_idx, use_sig); /* Expect paging to propagate to no BSS */ timer T := 2.0; T.start; alt { [] any from PCU_PTP.receive(exp_rx) { setverdict(fail, "Paging received on unexpected BVC"); } [] any from PCU_SIG.receive(exp_rx) { setverdict(fail, "Paging received on unexpected BVC"); } [] any from PCU_PTP.receive(PDU_BSSGP:{pDU_BSSGP_PAGING_PS:=?}) { setverdict(fail, "Different Paging received on PTP BVC"); } [] any from PCU_SIG.receive(PDU_BSSGP:{pDU_BSSGP_PAGING_PS:=?}) { setverdict(fail, "Different Paging received on SIGNALING BVC"); } [] T.timeout { setverdict(pass); } } } private function f_TC_paging_ps_ptp_bss(charstring id) runs on BSSGP_ConnHdlr { /* doesn't really make sense: Sending to a single BVCI means the message ends up * at that BVC (cell) only, and paging all over the BSS area is not possible */ f_send_paging_ps_exp_one_bss(ts_BssgpP4BssArea, 0, false, 0); } testcase TC_paging_ps_ptp_bss() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_ps_ptp_bss), testcasename(), g_pcu, g_sgsn, 9); vc_conn.done; f_cleanup(); } /* PS-PAGING on PTP-BVC for Location Area */ private function f_TC_paging_ps_ptp_lac(charstring id) runs on BSSGP_ConnHdlr { var template (present) PDU_BSSGP exp_rx; /* doesn't really make sense: Sending to a single BVCI means the message ends up * at that BVC (cell) only, and paging all over the BSS area is not possible */ f_send_paging_ps_exp_one_bss(ts_BssgpP4LAC(pcu_bvc_cfg[0].cell_id.ra_id.lai), 0, false, 0); } testcase TC_paging_ps_ptp_lac() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_ps_ptp_lac), testcasename(), g_pcu, g_sgsn, 10); vc_conn.done; f_cleanup(); } /* PS-PAGING on PTP-BVC for unknown Location Area */ private function f_TC_paging_ps_ptp_lac_unknown(charstring id) runs on BSSGP_ConnHdlr { var GSM_Types.LocationAreaIdentification unknown_la := { mcc_mnc := '567F99'H, lac := 33333 }; /* as it's sent on the PTP BVC, we expect it to pass even for unknown LAC */ f_send_paging_ps_exp_one_bss(ts_BssgpP4LAC(unknown_la), 0, false, 0); } testcase TC_paging_ps_ptp_lac_unknown() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_ps_ptp_lac_unknown), testcasename(), g_pcu, g_sgsn, 11); vc_conn.done; f_cleanup(); } /* PS-PAGING on PTP-BVC for Routeing Area */ private function f_TC_paging_ps_ptp_rac(charstring id) runs on BSSGP_ConnHdlr { /* doesn't really make sense: Sending to a single BVCI means the message ends up * at that BVC (cell) only, and paging all over the BSS area is not possible */ f_send_paging_ps_exp_one_bss(ts_BssgpP4RAC(pcu_bvc_cfg[0].cell_id.ra_id), 0, false, 0); } testcase TC_paging_ps_ptp_rac() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_ps_ptp_rac), testcasename(), g_pcu, g_sgsn, 11); vc_conn.done; f_cleanup(); } /* PS-PAGING on PTP-BVC for unknown Routeing Area */ private function f_TC_paging_ps_ptp_rac_unknown(charstring id) runs on BSSGP_ConnHdlr { var RoutingAreaIdentification unknown_ra := { lai := { mcc_mnc := '567F99'H, lac := 33333 }, rac := 254 }; /* as it's sent on the PTP BVC, we expect it to pass even for unknown RAC */ f_send_paging_ps_exp_one_bss(ts_BssgpP4RAC(unknown_ra), 0, false, 0); } testcase TC_paging_ps_ptp_rac_unknown() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_ps_ptp_rac_unknown), testcasename(), g_pcu, g_sgsn, 11); vc_conn.done; f_cleanup(); } /* PS-PAGING on PTP-BVC for BVCI (one cell) */ private function f_TC_paging_ps_ptp_bvci(charstring id) runs on BSSGP_ConnHdlr { /* this should be the normal case for MS in READY MM state after a lower layer failure */ f_send_paging_ps_exp_one_bss(ts_BssgpP4Bvci(pcu_bvc_cfg[0].bvci), 0, false, 0); } testcase TC_paging_ps_ptp_bvci() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_ps_ptp_bvci), testcasename(), g_pcu, g_sgsn, 12); vc_conn.done; f_cleanup(); } /* PS-PAGING on PTP-BVC for unknown BVCI */ private function f_TC_paging_ps_ptp_bvci_unknown(charstring id) runs on BSSGP_ConnHdlr { /* as it's sent on the PTP BVC, we expect it to pass even for unknown BVCI */ f_send_paging_ps_exp_one_bss(ts_BssgpP4Bvci(33333), 0, false, 0); } testcase TC_paging_ps_ptp_bvci_unknown() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_ps_ptp_bvci_unknown), testcasename(), g_pcu, g_sgsn, 11); vc_conn.done; f_cleanup(); } /* altstep for expecting BSSGP PDU on signaling BVC of given pcu_idx + storing in 'roi' */ private altstep as_paging_sig_pcu(integer pcu_idx, template (present) PDU_BSSGP exp_rx, inout ro_integer roi) runs on BSSGP_ConnHdlr { [] PCU_SIG[pcu_idx].receive(exp_rx) { if (ro_integer_contains(roi, pcu_idx)) { setverdict(fail, "Received multiple paging on same SIG BVC"); } roi := roi & { pcu_idx }; repeat; } [] PCU_PTP[pcu_idx].receive(exp_rx) { setverdict(fail, "Received paging on PTP BVC, expected SIGNALING BVC"); } [] PCU_SIG[pcu_idx].receive(PDU_BSSGP:{pDU_BSSGP_PAGING_PS:=?}) { setverdict(fail, "Different Paging than expected received SIGNALING BVC"); } [] PCU_PTP[pcu_idx].receive(PDU_BSSGP:{pDU_BSSGP_PAGING_PS:=?}) { setverdict(fail, "Different Paging than expected received PTP BVC"); } } type record of default ro_default; /* send PS-PAGING on SIG BVC, expect it to arrive on given list of PCU indexes */ private function f_send_paging_ps_exp_multi(template (value) Paging_Field4 p4, integer sgsn_idx := 0, ro_integer exp_on_pcu_idx) runs on BSSGP_ConnHdlr { var template (present) PDU_BSSGP exp_rx; exp_rx := f_send_paging_ps(p4, 0, true); /* FIXME: make sure the relevant BVCs/BSS are connected to the ports! */ var ro_default defaults := {}; for (var integer i := 0; i < lengthof(mp_nsconfig_pcu); i := i+1) { var default d := activate(as_paging_sig_pcu(i, exp_rx, g_roi)); defaults := defaults & { d }; } f_sleep(2.0); for (var integer i := 0; i < lengthof(defaults); i := i+1) { deactivate(defaults[i]); } log("Paging received on PCU ", g_roi); for (var integer i := 0; i < lengthof(mp_nsconfig_pcu); i := i+1) { var boolean rx_on_i := ro_integer_contains(g_roi, i); var boolean exp_on_i := ro_integer_contains(exp_on_pcu_idx, i); if (exp_on_i and not rx_on_i) { setverdict(fail, "PS-PAGING not received on ", mp_nsconfig_pcu[i].nsei); } if (not exp_on_i and rx_on_i) { setverdict(fail, "PS-PAGING not expected but received on ", mp_nsconfig_pcu[i].nsei); } } setverdict(pass); } /* PS-PAGING on SIG-BVC for BSS Area */ private function f_TC_paging_ps_sig_bss(charstring id) runs on BSSGP_ConnHdlr { /* we expect the paging to arrive on all three NSE */ f_send_paging_ps_exp_multi(ts_BssgpP4BssArea, 0, {0, 1, 2}); } testcase TC_paging_ps_sig_bss() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_ps_sig_bss), testcasename(), g_pcu, g_sgsn, 13); vc_conn.done; f_cleanup(); } /* PS-PAGING on SIG-BVC for Location Area */ private function f_TC_paging_ps_sig_lac(charstring id) runs on BSSGP_ConnHdlr { /* The first LAC (13135) is shared by all three NSEs */ f_send_paging_ps_exp_multi(ts_BssgpP4LAC(pcu_bvc_cfg[0].cell_id.ra_id.lai), 0, {0, 1, 2}); /* Reset state */ g_roi := {}; /* Make LAC (13300) available on pcu index 2 */ f_connect_to_pcu_bvc(port_idx := 2, nse_idx := 2, bvc_idx := 1); f_send_paging_ps_exp_multi(ts_BssgpP4LAC(pcu_bvc_cfg[2].cell_id.ra_id.lai), 0, {2}); } testcase TC_paging_ps_sig_lac() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_ps_sig_lac), testcasename(), g_pcu, g_sgsn, 14); vc_conn.done; f_cleanup(); } /* PS-PAGING on SIG-BVC for unknown Location Area */ private function f_TC_paging_ps_sig_lac_unknown(charstring id) runs on BSSGP_ConnHdlr { var GSM_Types.LocationAreaIdentification unknown_la := { mcc_mnc := '567F99'H, lac := 33333 }; f_send_paging_ps_exp_no_bss(ts_BssgpP4LAC(unknown_la), 0, true); } testcase TC_paging_ps_sig_lac_unknown() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_ps_sig_lac_unknown), testcasename(), g_pcu, g_sgsn, 11); vc_conn.done; f_cleanup(); } /* PS-PAGING on SIG-BVC for Routeing Area */ private function f_TC_paging_ps_sig_rac(charstring id) runs on BSSGP_ConnHdlr { /* Only PCU index 0 has a matching BVC with the RA ID */ f_send_paging_ps_exp_multi(ts_BssgpP4RAC(pcu_bvc_cfg[0].cell_id.ra_id), 0, {0}); g_roi := {}; /* PCU index 1 and 2 have a matching BVC with the RA ID */ f_send_paging_ps_exp_multi(ts_BssgpP4RAC(pcu_bvc_cfg[2].cell_id.ra_id), 0, {1, 2}); g_roi := {}; /* PCU index 2 has two matching BVCs with the RA ID */ f_connect_to_pcu_bvc(port_idx := 2, nse_idx := 2, bvc_idx := 1); f_send_paging_ps_exp_multi(ts_BssgpP4RAC(pcu_bvc_cfg[2].cell_id.ra_id), 0, {2}); } testcase TC_paging_ps_sig_rac() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_ps_sig_rac), testcasename(), g_pcu, g_sgsn, 15); vc_conn.done; f_cleanup(); } /* PS-PAGING on SIG-BVC for unknown Routeing Area */ private function f_TC_paging_ps_sig_rac_unknown(charstring id) runs on BSSGP_ConnHdlr { var RoutingAreaIdentification unknown_ra := { lai := { mcc_mnc := '567F99'H, lac := 33333 }, rac := 254 }; f_send_paging_ps_exp_no_bss(ts_BssgpP4RAC(unknown_ra), 0, true); } testcase TC_paging_ps_sig_rac_unknown() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_ps_sig_rac_unknown), testcasename(), g_pcu, g_sgsn, 11); vc_conn.done; f_cleanup(); } /* PS-PAGING on SIG-BVC for BVCI (one cell) */ private function f_TC_paging_ps_sig_bvci(charstring id) runs on BSSGP_ConnHdlr { f_send_paging_ps_exp_multi(ts_BssgpP4Bvci(pcu_bvc_cfg[0].bvci), 0, {0}); } testcase TC_paging_ps_sig_bvci() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_ps_sig_bvci), testcasename(), g_pcu, g_sgsn, 16); vc_conn.done; f_cleanup(); } /* PS-PAGING on SIG-BVC for unknown BVCI */ private function f_TC_paging_ps_sig_bvci_unknown(charstring id) runs on BSSGP_ConnHdlr { f_send_paging_ps_exp_no_bss(ts_BssgpP4Bvci(33333), 0, true); } testcase TC_paging_ps_sig_bvci_unknown() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_ps_sig_bvci_unknown), testcasename(), g_pcu, g_sgsn, 11); vc_conn.done; f_cleanup(); } /*********************************************************************** * PAGING CS procedure ***********************************************************************/ private function f_send_paging_cs(template (value) Paging_Field4 p4, integer sgsn_idx := 0, boolean use_sig := false) runs on BSSGP_ConnHdlr return template (present) PDU_BSSGP { var template (value) PDU_BSSGP pdu_tx; var template (present) PDU_BSSGP pdu_rx; /* we always specify '0' as BVCI in the templates below, as we override it with * 'p4' later anyway */ pdu_rx := tr_BSSGP_CS_PAGING(0); pdu_rx.pDU_BSSGP_PAGING_CS.iMSI := tr_BSSGP_IMSI(g_pars.imsi); if (ispresent(g_pars.p_tmsi)) { pdu_tx := ts_BSSGP_CS_PAGING_PTMSI(0, g_pars.imsi, oct2int(g_pars.p_tmsi)); pdu_rx.pDU_BSSGP_PAGING_CS.tMSI := tr_BSSGP_TMSI(oct2int(g_pars.p_tmsi)); } else { pdu_tx := ts_BSSGP_CS_PAGING_IMSI(0, g_pars.imsi); pdu_rx.pDU_BSSGP_PAGING_CS.tMSI := omit; } pdu_tx.pDU_BSSGP_PAGING_CS.paging_Field4 := p4; pdu_rx.pDU_BSSGP_PAGING_CS.paging_Field4 := p4; if (use_sig == false) { SGSN_PTP[sgsn_idx].send(pdu_tx); } else { SGSN_SIG[sgsn_idx].send(pdu_tx); } return pdu_rx; } /* send paging defined by 'p4' on given SGSN-side index (ptp or signaling) and expect one paging to arrive on * specified PCU index */ private function f_send_paging_cs_exp_one_bss(template (value) Paging_Field4 p4, integer sgsn_idx := 0, boolean use_sig := false,integer pcu_idx := 0) runs on BSSGP_ConnHdlr { var template (present) PDU_BSSGP exp_rx; var boolean test_done := false; /* doesn't really make sense: Sending to a single BVCI means the message ends up * at that BVC (cell) only, and paging all over the BSS area is not possible */ exp_rx := f_send_paging_cs(p4, sgsn_idx, use_sig); /* Expect paging to propagate to the one BSS addressed by the BVCI only */ timer T := 2.0; T.start; alt { [not use_sig and not test_done] PCU_PTP[pcu_idx].receive(exp_rx) { setverdict(pass); test_done := true; repeat; } [not use_sig] PCU_SIG[pcu_idx].receive(exp_rx) { setverdict(fail, "Received paging on SIGNALING BVC, expected PTP BVC"); } [use_sig and not test_done] PCU_SIG[pcu_idx].receive(exp_rx) { setverdict(pass); test_done := true; repeat; } [use_sig] PCU_PTP[pcu_idx].receive(exp_rx) { setverdict(fail, "Received paging on PTP BVC, expected SIGNALING BVC"); } [] any from PCU_PTP.receive(exp_rx) { setverdict(fail, "Paging received on unexpected BVC"); } [] any from PCU_SIG.receive(exp_rx) { setverdict(fail, "Paging received on unexpected BVC"); } [] any from PCU_PTP.receive(PDU_BSSGP:{pDU_BSSGP_PAGING_CS:=?}) { setverdict(fail, "Different Paging than expected received PTP BVC"); } [] any from PCU_SIG.receive(PDU_BSSGP:{pDU_BSSGP_PAGING_CS:=?}) { setverdict(fail, "Different Paging than expected on SIGNALING BVC"); } [not test_done] T.timeout { setverdict(fail, "Timeout while waiting for paging") } [test_done] T.timeout; } } /* send a CS-PAGING but don't expect it to show up on any PTP or SIG BVC */ private function f_send_paging_cs_exp_no_bss(template (value) Paging_Field4 p4, integer sgsn_idx := 0, boolean use_sig := false) runs on BSSGP_ConnHdlr { var template (present) PDU_BSSGP exp_rx; exp_rx := f_send_paging_cs(p4, sgsn_idx, use_sig); /* Expect paging to propagate to no BSS */ timer T := 2.0; T.start; alt { [] any from PCU_PTP.receive(exp_rx) { setverdict(fail, "Paging received on unexpected BVC"); } [] any from PCU_SIG.receive(exp_rx) { setverdict(fail, "Paging received on unexpected BVC"); } [] any from PCU_PTP.receive(PDU_BSSGP:{pDU_BSSGP_PAGING_CS:=?}) { setverdict(fail, "Different Paging received on PTP BVC"); } [] any from PCU_SIG.receive(PDU_BSSGP:{pDU_BSSGP_PAGING_CS:=?}) { setverdict(fail, "Different Paging received on SIGNALING BVC"); } [] T.timeout { setverdict(pass); } } } private function f_TC_paging_cs_ptp_bss(charstring id) runs on BSSGP_ConnHdlr { /* doesn't really make sense: Sending to a single BVCI means the message ends up * at that BVC (cell) only, and paging all over the BSS area is not possible */ f_send_paging_cs_exp_one_bss(ts_BssgpP4BssArea, 0, false, 0); } testcase TC_paging_cs_ptp_bss() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_cs_ptp_bss), testcasename(), g_pcu, g_sgsn, 17); vc_conn.done; f_cleanup(); } /* CS-PAGING on PTP-BVC for Location Area */ private function f_TC_paging_cs_ptp_lac(charstring id) runs on BSSGP_ConnHdlr { var template (present) PDU_BSSGP exp_rx; /* doesn't really make sense: Sending to a single BVCI means the message ends up * at that BVC (cell) only, and paging all over the BSS area is not possible */ f_send_paging_cs_exp_one_bss(ts_BssgpP4LAC(pcu_bvc_cfg[0].cell_id.ra_id.lai), 0, false, 0); } testcase TC_paging_cs_ptp_lac() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_cs_ptp_lac), testcasename(), g_pcu, g_sgsn, 18); vc_conn.done; f_cleanup(); } /* CS-PAGING on PTP-BVC for unknown Location Area */ private function f_TC_paging_cs_ptp_lac_unknown(charstring id) runs on BSSGP_ConnHdlr { var GSM_Types.LocationAreaIdentification unknown_la := { mcc_mnc := '567F99'H, lac := 33333 }; /* as it's sent on the PTP BVC, we expect it to pass even for unknown LAC */ f_send_paging_cs_exp_one_bss(ts_BssgpP4LAC(unknown_la), 0, false, 0); } testcase TC_paging_cs_ptp_lac_unknown() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_cs_ptp_lac_unknown), testcasename(), g_pcu, g_sgsn, 11); vc_conn.done; f_cleanup(); } /* CS-PAGING on PTP-BVC for Routeing Area */ private function f_TC_paging_cs_ptp_rac(charstring id) runs on BSSGP_ConnHdlr { /* doesn't really make sense: Sending to a single BVCI means the message ends up * at that BVC (cell) only, and paging all over the BSS area is not possible */ f_send_paging_cs_exp_one_bss(ts_BssgpP4RAC(pcu_bvc_cfg[0].cell_id.ra_id), 0, false, 0); } testcase TC_paging_cs_ptp_rac() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_cs_ptp_rac), testcasename(), g_pcu, g_sgsn, 19); vc_conn.done; f_cleanup(); } /* CS-PAGING on PTP-BVC for unknown Routeing Area */ private function f_TC_paging_cs_ptp_rac_unknown(charstring id) runs on BSSGP_ConnHdlr { var RoutingAreaIdentification unknown_ra := { lai := { mcc_mnc := '567F99'H, lac := 33333 }, rac := 254 }; /* as it's sent on the PTP BVC, we expect it to pass even for unknown RAC */ f_send_paging_cs_exp_one_bss(ts_BssgpP4RAC(unknown_ra), 0, false, 0); } testcase TC_paging_cs_ptp_rac_unknown() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_cs_ptp_rac_unknown), testcasename(), g_pcu, g_sgsn, 11); vc_conn.done; f_cleanup(); } /* CS-PAGING on PTP-BVC for BVCI (one cell) */ private function f_TC_paging_cs_ptp_bvci(charstring id) runs on BSSGP_ConnHdlr { /* this should be the normal case for MS in READY MM state after a lower layer failure */ f_send_paging_cs_exp_one_bss(ts_BssgpP4Bvci(pcu_bvc_cfg[0].bvci), 0, false, 0); } testcase TC_paging_cs_ptp_bvci() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_cs_ptp_bvci), testcasename(), g_pcu, g_sgsn, 20); vc_conn.done; f_cleanup(); } /* CS-PAGING on PTP-BVC for unknown BVCI */ private function f_TC_paging_cs_ptp_bvci_unknown(charstring id) runs on BSSGP_ConnHdlr { /* as it's sent on the PTP BVC, we expect it to pass even for unknown BVCI */ f_send_paging_cs_exp_one_bss(ts_BssgpP4Bvci(33333), 0, false, 0); } testcase TC_paging_cs_ptp_bvci_unknown() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_cs_ptp_bvci_unknown), testcasename(), g_pcu, g_sgsn, 11); vc_conn.done; f_cleanup(); } /* send CS-PAGING on SIG BVC, expect it to arrive on given list of PCU indexes */ private function f_send_paging_cs_exp_multi(template (value) Paging_Field4 p4, integer sgsn_idx := 0, ro_integer exp_on_pcu_idx) runs on BSSGP_ConnHdlr { var template (present) PDU_BSSGP exp_rx; exp_rx := f_send_paging_cs(p4, 0, true); /* FIXME: make sure the relevant BVCs/BSS are connected to the ports! */ var ro_default defaults := {}; for (var integer i := 0; i < lengthof(mp_nsconfig_pcu); i := i+1) { var default d := activate(as_paging_sig_pcu(i, exp_rx, g_roi)); defaults := defaults & { d }; } f_sleep(2.0); for (var integer i := 0; i < lengthof(defaults); i := i+1) { deactivate(defaults[i]); } log("Paging received on PCU ", g_roi); for (var integer i := 0; i < lengthof(mp_nsconfig_pcu); i := i+1) { var boolean rx_on_i := ro_integer_contains(g_roi, i); var boolean exp_on_i := ro_integer_contains(exp_on_pcu_idx, i); if (exp_on_i and not rx_on_i) { setverdict(fail, "PS-PAGING not received on ", mp_nsconfig_pcu[i].nsei); } if (not exp_on_i and rx_on_i) { setverdict(fail, "PS-PAGING not expected but received on ", mp_nsconfig_pcu[i].nsei); } } setverdict(pass); } /* CS-PAGING on SIG-BVC for BSS Area */ private function f_TC_paging_cs_sig_bss(charstring id) runs on BSSGP_ConnHdlr { /* we expect the paging to arrive on all three NSE */ f_send_paging_cs_exp_multi(ts_BssgpP4BssArea, 0, {0, 1, 2}); } testcase TC_paging_cs_sig_bss() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_cs_sig_bss), testcasename(), g_pcu, g_sgsn, 13); vc_conn.done; f_cleanup(); } /* CS-PAGING on SIG-BVC for Location Area */ private function f_TC_paging_cs_sig_lac(charstring id) runs on BSSGP_ConnHdlr { /* The first LAC (13135) is shared by all three NSEs */ f_send_paging_cs_exp_multi(ts_BssgpP4LAC(pcu_bvc_cfg[0].cell_id.ra_id.lai), 0, {0, 1, 2}); /* Reset state */ g_roi := {}; /* Make LAC (13300) available on pcu index 2 */ f_connect_to_pcu_bvc(port_idx := 2, nse_idx := 2, bvc_idx := 1); f_send_paging_cs_exp_multi(ts_BssgpP4LAC(pcu_bvc_cfg[2].cell_id.ra_id.lai), 0, {2}); } testcase TC_paging_cs_sig_lac() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_cs_sig_lac), testcasename(), g_pcu, g_sgsn, 14); vc_conn.done; f_cleanup(); } /* CS-PAGING on SIG-BVC for unknown Location Area */ private function f_TC_paging_cs_sig_lac_unknown(charstring id) runs on BSSGP_ConnHdlr { var GSM_Types.LocationAreaIdentification unknown_la := { mcc_mnc := '567F99'H, lac := 33333 }; f_send_paging_cs_exp_no_bss(ts_BssgpP4LAC(unknown_la), 0, true); } testcase TC_paging_cs_sig_lac_unknown() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_cs_sig_lac_unknown), testcasename(), g_pcu, g_sgsn, 11); vc_conn.done; f_cleanup(); } /* CS-PAGING on SIG-BVC for Routeing Area */ private function f_TC_paging_cs_sig_rac(charstring id) runs on BSSGP_ConnHdlr { /* Only PCU index 0 has a matching BVC with the RA ID */ f_send_paging_cs_exp_multi(ts_BssgpP4RAC(pcu_bvc_cfg[0].cell_id.ra_id), 0, {0}); g_roi := {}; /* PCU index 1 and 2 have a matching BVC with the RA ID */ f_send_paging_cs_exp_multi(ts_BssgpP4RAC(pcu_bvc_cfg[2].cell_id.ra_id), 0, {1, 2}); g_roi := {}; /* PCU index 2 has two matching BVCs with the RA ID */ f_connect_to_pcu_bvc(port_idx := 2, nse_idx := 2, bvc_idx := 1); f_send_paging_cs_exp_multi(ts_BssgpP4RAC(pcu_bvc_cfg[2].cell_id.ra_id), 0, {2}); } testcase TC_paging_cs_sig_rac() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_cs_sig_rac), testcasename(), g_pcu, g_sgsn, 15); vc_conn.done; f_cleanup(); } /* CS-PAGING on SIG-BVC for unknown Routeing Area */ private function f_TC_paging_cs_sig_rac_unknown(charstring id) runs on BSSGP_ConnHdlr { var RoutingAreaIdentification unknown_ra := { lai := { mcc_mnc := '567F99'H, lac := 33333 }, rac := 254 }; f_send_paging_cs_exp_no_bss(ts_BssgpP4RAC(unknown_ra), 0, true); } testcase TC_paging_cs_sig_rac_unknown() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_cs_sig_rac_unknown), testcasename(), g_pcu, g_sgsn, 11); vc_conn.done; f_cleanup(); } /* CS-PAGING on SIG-BVC for BVCI (one cell) */ private function f_TC_paging_cs_sig_bvci(charstring id) runs on BSSGP_ConnHdlr { f_send_paging_cs_exp_multi(ts_BssgpP4Bvci(pcu_bvc_cfg[0].bvci), 0, {0}); } testcase TC_paging_cs_sig_bvci() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_cs_sig_bvci), testcasename(), g_pcu, g_sgsn, 16); vc_conn.done; f_cleanup(); } /* CS-PAGING on SIG-BVC for unknown BVCI */ private function f_TC_paging_cs_sig_bvci_unknown(charstring id) runs on BSSGP_ConnHdlr { f_send_paging_cs_exp_no_bss(ts_BssgpP4Bvci(33333), 0, true); } testcase TC_paging_cs_sig_bvci_unknown() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_paging_cs_sig_bvci_unknown), testcasename(), g_pcu, g_sgsn, 11); vc_conn.done; f_cleanup(); } /*********************************************************************** * FLUSH-LL procedure ***********************************************************************/ private function f_TC_flush_ll(charstring id) runs on BSSGP_ConnHdlr { var BssgpBvci bvci := g_pars.pcu[0].cfg.bvc[0].bvci; var integer i; for (i := 0; i < 10; i := i+1) { var template (value) PDU_BSSGP pdu_tx := ts_BSSGP_FLUSH_LL(g_pars.tlli, bvci, bvci_new := bvci); /* we cannot use pdu_tx as there are some subtle differences in the length field :/ */ var template (present) PDU_BSSGP pdu_rx := tr_BSSGP_FLUSH_LL(g_pars.tlli, bvci, bvci_new := bvci); f_sgsn2pcu(pdu_tx, pdu_rx, use_sig := true); pdu_tx := ts_BSSGP_FLUSH_LL_ACK(g_pars.tlli, int2oct(0, 1), 23, bvci_new := bvci); /* we cannot use pdu_tx as there are some subtle differences in the length field :/ */ pdu_rx := tr_BSSGP_FLUSH_LL_ACK(g_pars.tlli, int2oct(0, 1), 23, bvci_new := bvci); f_pcu2sgsn(pdu_tx, pdu_rx, use_sig := true); } setverdict(pass); } testcase TC_flush_ll() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_flush_ll), testcasename(), g_pcu, g_sgsn, 6); vc_conn.done; /* TODO: start multiple handlers (UEs) on various cells on same and other NSEs */ f_cleanup(); } /*********************************************************************** * SGSN-INVOKE-TRACE procedure ***********************************************************************/ private altstep as_bssgp_g_pcu_count(integer pcu_idx, template (present) PDU_BSSGP exp_rx, inout ro_integer roi) runs on GlobalTest_CT { [] G_PCU[pcu_idx].receive(exp_rx) from g_pcu[pcu_idx].vc_BSSGP { if (ro_integer_contains(roi, pcu_idx)) { setverdict(fail, "Received multiple on same SIG BVC"); } roi := roi & { pcu_idx }; repeat; } } /* send a INVOKE-TRACE from SGSN and expect to receive a copy on each NSE */ testcase TC_trace() runs on GlobalTest_CT { var BSSGP_ConnHdlr vc_conn; f_init(); f_global_init(); var template (value) PDU_BSSGP pdu_tx := ts_BSSGP_INVOKE_TRACE('23'O, '4321'O); var template (present) PDU_BSSGP exp_rx := ts_BSSGP_INVOKE_TRACE('23'O, '4321'O); var ro_default defaults := {}; for (var integer i := 0; i < lengthof(g_pcu); i := i+1) { activate(as_bssgp_g_pcu_count(i, exp_rx, g_roi)); } G_SGSN[0].send(pdu_tx); f_sleep(2.0); for (var integer i := 0; i < lengthof(defaults); i := i+1) { deactivate(defaults[i]); } for (var integer i := 0; i < lengthof(g_pcu); i := i+1) { if (not ro_integer_contains(g_roi, i)) { setverdict(fail, "Failed to receive TRACE on PCU index ", i); } } setverdict(pass); f_cleanup(); } /*********************************************************************** * LLC-DISCARDED procedure ***********************************************************************/ private function f_TC_llc_discarded(charstring id) runs on BSSGP_ConnHdlr { var BssgpBvci bvci := g_pars.pcu[0].cfg.bvc[0].bvci; var template (value) PDU_BSSGP pdu_tx := ts_BSSGP_LLC_DISCARDED(g_pars.tlli, 23, bvci, 2342); /* we cannot use pdu_tx as there are some subtle differences in the length field :/ */ var template (present) PDU_BSSGP pdu_rx := tr_BSSGP_LLC_DISCARDED(g_pars.tlli, 23, bvci, 2342); f_pcu2sgsn(pdu_tx, pdu_rx, use_sig := true); setverdict(pass); } /* Send a LLC-DISCARDED from BSS side and expect it to show up on SGSN (SIG BVC) */ testcase TC_llc_discarded() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_llc_discarded), testcasename(), g_pcu, g_sgsn, 6); vc_conn.done; /* TODO: start multiple handlers (UEs) on various cells on same and other NSEs */ f_cleanup(); } /*********************************************************************** * OVERLOAD procedure ***********************************************************************/ /* Send an OVERLOAD from SGSN side and expect it to show up on each PCU (SIG BVC) */ testcase TC_overload() runs on GlobalTest_CT { f_init(); f_global_init(); var template (value) PDU_BSSGP pdu_tx := ts_OVERLOAD('1'B); var template (present) PDU_BSSGP exp_rx := tr_OVERLOAD('1'B); var ro_default defaults := {}; for (var integer i := 0; i < lengthof(g_pcu); i := i+1) { activate(as_bssgp_g_pcu_count(i, exp_rx, g_roi)); } G_SGSN[0].send(pdu_tx); f_sleep(2.0); for (var integer i := 0; i < lengthof(defaults); i := i+1) { deactivate(defaults[i]); } for (var integer i := 0; i < lengthof(g_pcu); i := i+1) { if (not ro_integer_contains(g_roi, i)) { setverdict(fail, "Failed to receive OVERLOAD on PCU index ", i); } } setverdict(pass); f_cleanup(); } /*********************************************************************** * BVC-BLOCK / BVC-UNBLOCK procedure ***********************************************************************/ private function f_block_ptp_bvc_from_pcu(integer pcu_idx, integer bvc_idx) runs on test_CT { var BSSGP_BVC_CT bvc_ct := g_pcu[pcu_idx].vc_BSSGP_BVC[bvc_idx]; var BssgpBvcConfig bvc_cfg := g_pcu[pcu_idx].cfg.bvc[bvc_idx]; var Nsei nsei_pcu := g_pcu[pcu_idx].cfg.nsei; SGSN_MGMT.clear; PCU_MGMT.clear; /* block the PTP BVC from the PCU side */ PCU_MGMT.send(BssgpBlockRequest:{cause:=BSSGP_CAUSE_OM_INTERVENTION}) to bvc_ct; /* expect state on both PCU and SGSN side to change */ interleave { [] PCU_MGMT.receive(tr_BssgpStsInd(nsei_pcu, bvc_cfg.bvci, BVC_S_BLOCKED)) from bvc_ct; [] SGSN_MGMT.receive(tr_BssgpStsInd(*, bvc_cfg.bvci, BVC_S_BLOCKED)); } setverdict(pass); } testcase TC_bvc_block_ptp() runs on test_CT { f_init(); f_sleep(1.0); f_block_ptp_bvc_from_pcu(0, 0); f_cleanup(); } private function f_unblock_ptp_bvc_from_pcu(integer pcu_idx, integer bvc_idx) runs on test_CT { var BSSGP_BVC_CT bvc_ct := g_pcu[pcu_idx].vc_BSSGP_BVC[bvc_idx]; var BssgpBvcConfig bvc_cfg := g_pcu[pcu_idx].cfg.bvc[bvc_idx]; var Nsei nsei_pcu := g_pcu[pcu_idx].cfg.nsei; SGSN_MGMT.clear; PCU_MGMT.clear; /* block the PTP BVC from the PCU side */ PCU_MGMT.send(BssgpUnblockRequest:{}) to bvc_ct; /* expect state on both PCU and SGSN side to change */ interleave { [] PCU_MGMT.receive(tr_BssgpStsInd(nsei_pcu, bvc_cfg.bvci, BVC_S_UNBLOCKED)) from bvc_ct; [] SGSN_MGMT.receive(tr_BssgpStsInd(*, bvc_cfg.bvci, BVC_S_UNBLOCKED)); } setverdict(pass); } testcase TC_bvc_unblock_ptp() runs on test_CT { f_init(); f_sleep(1.0); f_block_ptp_bvc_from_pcu(0, 0); f_sleep(1.0); f_unblock_ptp_bvc_from_pcu(0, 0); f_cleanup(); } /*********************************************************************** * BVC-RESET procedure ***********************************************************************/ private altstep as_ignore_status(BSSGP_BVC_MGMT_PT pt) { [] pt.receive(BssgpStatusIndication:?) { repeat; } } private function f_get_sgsn_bvc_ct(integer sgsn_idx, BssgpBvci bvci) runs on test_CT return BSSGP_BVC_CT { for (var integer i := 0; i < lengthof(g_sgsn[sgsn_idx].cfg.bvc); i := i+1) { if (g_sgsn[sgsn_idx].cfg.bvc[i].bvci == bvci) { return g_sgsn[sgsn_idx].vc_BSSGP_BVC[i]; } } return null; } private function f_reset_ptp_bvc_from_pcu(integer pcu_idx, integer bvc_idx) runs on test_CT { var BSSGP_BVC_CT pcu_bvc_ct := g_pcu[pcu_idx].vc_BSSGP_BVC[bvc_idx]; var BssgpBvcConfig bvc_cfg := g_pcu[pcu_idx].cfg.bvc[bvc_idx]; var Nsei nsei_pcu := g_pcu[pcu_idx].cfg.nsei; var BSSGP_BVC_CT sgsn_bvc_ct := f_get_sgsn_bvc_ct(0, bvc_cfg.bvci); var default d; SGSN_MGMT.clear; PCU_MGMT.clear; /* block the PTP BVC from the PCU side */ PCU_MGMT.send(BssgpResetRequest:{cause:=BSSGP_CAUSE_OM_INTERVENTION}) to pcu_bvc_ct; /* expect state on both PCU and SGSN side to change */ d := activate(as_ignore_status(SGSN_MGMT)); interleave { [] PCU_MGMT.receive(tr_BssgpStsInd(nsei_pcu, bvc_cfg.bvci, BVC_S_BLOCKED)) from pcu_bvc_ct; [] SGSN_MGMT.receive(BssgpResetIndication:{bvc_cfg.bvci}) from sgsn_bvc_ct; } deactivate(d); setverdict(pass); } /* Send a BVC-RESET for a PTP BVC from the BSS side: expect it to propagate */ testcase TC_bvc_reset_ptp_from_bss() runs on test_CT { f_init(); f_sleep(3.0); f_reset_ptp_bvc_from_pcu(0, 0); f_cleanup(); } private altstep as_count_bvc_block(integer sgsn_idx, BssgpBvci bvci, inout ro_integer roi) runs on test_CT { var BSSGP_BVC_CT sgsn_bvc_ct := f_get_sgsn_bvc_ct(sgsn_idx, bvci); [] SGSN_MGMT.receive(tr_BssgpStsInd(?, bvci, BVC_S_BLOCKED)) from sgsn_bvc_ct { roi := roi & { bvci }; repeat; } } /* reset the signaling BVC from one BSS; expect no signaling BVC reset on SGSN; but BVC-BLOCK for PTP */ testcase TC_bvc_reset_sig_from_bss() runs on test_CT { f_init(); f_sleep(3.0); /* Start BVC-RESET procedure for BVCI=0 */ PCU_MGMT.send(BssgpResetRequest:{cause:=BSSGP_CAUSE_OM_INTERVENTION}) to g_pcu[0].vc_BSSGP; /* Activate altsteps: One for each PTP BVC within that PCUs NSE */ var ro_default defaults := {}; for (var integer i := 0; i < lengthof(g_pcu[0].cfg.bvc); i := i+1) { var BssgpBvcConfig bvcc := g_pcu[0].cfg.bvc[i]; var default d := activate(as_count_bvc_block(0, bvcc.bvci, g_roi)); defaults := defaults & { d }; } timer T := 3.0; T.start; alt { [] SGSN_MGMT.receive(BssgpResetIndication:{0}) { setverdict(fail, "BSS-side Reset of BVCI=0 should not propagate"); } [] T.timeout; } for (var integer i := 0; i < lengthof(defaults); i := i+1) { deactivate(defaults[i]); } /* check if BVC-block was received on all expected BVC */ for (var integer i := 0; i < lengthof(g_pcu[0].cfg.bvc); i := i+1) { var BssgpBvcConfig bvcc := g_pcu[0].cfg.bvc[i]; if (not ro_integer_contains(g_roi, bvcc.bvci)) { setverdict(fail, "Missing SGSN-side BVC-BLOCK of BVCI=", bvcc.bvci); } } /* check if BVC-block was not received on any unexpected BVC is not required as * such a message would basically run into 'no matching clause' */ setverdict(pass); f_cleanup(); } private function f_reset_ptp_bvc_from_sgsn(integer pcu_idx, integer bvc_idx) runs on test_CT { var BSSGP_BVC_CT pcu_bvc_ct := g_pcu[pcu_idx].vc_BSSGP_BVC[bvc_idx]; var BssgpBvcConfig bvc_cfg := g_pcu[pcu_idx].cfg.bvc[bvc_idx]; var Nsei nsei_pcu := g_pcu[pcu_idx].cfg.nsei; var BSSGP_BVC_CT sgsn_bvc_ct := f_get_sgsn_bvc_ct(0, bvc_cfg.bvci); var default d; SGSN_MGMT.clear; PCU_MGMT.clear; /* block the PTP BVC from the PCU side */ SGSN_MGMT.send(BssgpResetRequest:{cause:=BSSGP_CAUSE_OM_INTERVENTION}) to sgsn_bvc_ct; /* expect state on both PCU and SGSN side to change */ d := activate(as_ignore_status(PCU_MGMT)); interleave { [] SGSN_MGMT.receive(tr_BssgpStsInd(?, bvc_cfg.bvci, BVC_S_BLOCKED)) from sgsn_bvc_ct; [] PCU_MGMT.receive(BssgpResetIndication:{bvc_cfg.bvci}) from pcu_bvc_ct; } deactivate(d); setverdict(pass); } /* Send a BVC-RESET for a PTP BVC from the SGSN side: expect it to propagate */ testcase TC_bvc_reset_ptp_from_sgsn() runs on test_CT { f_init(); f_sleep(3.0); f_reset_ptp_bvc_from_sgsn(0, 0); f_cleanup(); } private altstep as_count_bvc0_block(integer pcu_idx, Nsei nsei, inout ro_integer roi) runs on test_CT { var BSSGP_CT pcu_ct := g_pcu[pcu_idx].vc_BSSGP; [] PCU_MGMT.receive(BssgpResetIndication:{0}) from pcu_ct { roi := roi & { nsei }; } } /* reset the signaling BVC from the SGSN; expect all signaling BVC on all BSS to be reset */ testcase TC_bvc_reset_sig_from_sgsn() runs on test_CT { f_init(); f_sleep(3.0); /* Start BVC-RESET procedure for BVCI=0 */ SGSN_MGMT.send(BssgpResetRequest:{cause:=BSSGP_CAUSE_OM_INTERVENTION}) to g_sgsn[0].vc_BSSGP; /* Activate altsteps: One for each PCU NSE */ var ro_default defaults := {}; for (var integer i := 0; i < lengthof(g_pcu); i := i+1) { var NSConfiguration nscfg := mp_nsconfig_pcu[i]; var default d := activate(as_count_bvc0_block(i, nscfg.nsei, g_roi)); defaults := defaults & { d }; } f_sleep(3.0); for (var integer i := 0; i < lengthof(defaults); i := i+1) { deactivate(defaults[i]); } /* check if BVC-block was received on all expected BVC */ for (var integer i := 0; i < lengthof(g_pcu); i := i+1) { var NSConfiguration nscfg := mp_nsconfig_pcu[i]; if (not ro_integer_contains(g_roi, nscfg.nsei)) { setverdict(fail, "Missing PCU-side BVC-RESET of BVCI=0 on PCU index ", i); } } /* check if BVC-block was not received on any unexpected BVC is not required as * such a message would basically run into 'no matching clause' */ f_cleanup(); } /*********************************************************************** * FLOW-CONTROL-BVC procedure ***********************************************************************/ private altstep as_g_count_sgsn(integer sgsn_idx, inout ro_integer roi, template PDU_BSSGP exp_rx, template (omit) PDU_BSSGP tx_reply) runs on GlobalTest_CT { [] G_SGSN[sgsn_idx].receive(exp_rx) { roi := roi & { sgsn_idx }; if (ispresent(tx_reply)) { G_SGSN[sgsn_idx].send(tx_reply); } } } /* Send FC-BVC from simulated PCU; expect each SGSN to receive it; expect PCU to receive ACK */ testcase TC_fc_bvc() runs on GlobalTest_CT { f_init(); f_global_init_ptp(); var template (value) PDU_BSSGP pdu_tx := t_BVC_FC_BVC(10240, 2000, 1024, 1000, '01'O); /* we cannot use pdu_tx as there are some subtle differences in the length field :/ */ var template (present) PDU_BSSGP pdu_rx := tr_BVC_FC_BVC(10240, 2000, 1024, 1000, '01'O); var template (omit) PDU_BSSGP ack_tx := t_BVC_FC_BVC_ACK(pdu_tx.pDU_BSSGP_FLOW_CONTROL_BVC.tag.unstructured_Value); /* Send a FC-BVC from BSS to gbproxy, expect an ACK in response */ G_PCU[0].send(pdu_tx); /* Activate altsteps: One for each SGSN-side PTP BVC port */ var ro_default defaults := {}; for (var integer i := 0; i < lengthof(g_sgsn); i := i+1) { var default d := activate(as_g_count_sgsn(i, g_roi, pdu_rx, ack_tx)); defaults := defaults & { d }; } f_sleep(3.0); for (var integer i := 0; i < lengthof(defaults); i := i+1) { deactivate(defaults[i]); } /* check if BVC-block was received on all expected BVC */ for (var integer i := 0; i < lengthof(g_sgsn); i := i+1) { if (not ro_integer_contains(g_roi, i)) { setverdict(fail, "Missing BVC-FLOW-CONTROL on SGSN index ", i); } } /* Expect ACK on PCU side */ G_PCU[0].receive(ack_tx); setverdict(pass); f_cleanup(); } /*********************************************************************** * FLOW-CONTROL-MS procedure ***********************************************************************/ private function f_TC_fc_ms(charstring id) runs on BSSGP_ConnHdlr { var BssgpBvci bvci := g_pars.pcu[0].cfg.bvc[0].bvci; var template (value) PDU_BSSGP fc_tx := ts_BVC_FC_MS(g_pars.tlli, 100, 200, '12'O); /* we cannot use pdu_tx as there are some subtle differences in the length field :/ */ var template (present) PDU_BSSGP fc_rx := tr_BVC_FC_MS(g_pars.tlli, 100, 200, '12'O); var template (value) PDU_BSSGP ack_tx := ts_BVC_FC_MS_ACK(g_pars.tlli, '12'O); f_pcu2sgsn(fc_tx, fc_rx, use_sig := false); f_sgsn2pcu(ack_tx, ack_tx, use_sig := false); setverdict(pass); } /* Send a FLOW-CONTROL-MS from BSS side and expect it to show up on SGSN (PTP BVC) */ testcase TC_fc_ms() runs on test_CT { var BSSGP_ConnHdlr vc_conn; f_init(); vc_conn := f_start_handler(refers(f_TC_fc_ms), testcasename(), g_pcu, g_sgsn, 21); vc_conn.done; /* TODO: start multiple handlers (UEs) on various cells on same and other NSEs */ f_cleanup(); } control { execute( TC_BVC_bringup() ); execute( TC_ul_unitdata() ); execute( TC_dl_unitdata() ); execute( TC_ra_capability() ); execute( TC_ra_capability_upd() ); execute( TC_radio_status() ); execute( TC_suspend() ); execute( TC_resume() ); execute( TC_trace() ); execute( TC_llc_discarded() ); execute( TC_overload() ); execute( TC_bvc_block_ptp() ); execute( TC_bvc_unblock_ptp() ); execute( TC_bvc_reset_ptp_from_bss() ); execute( TC_bvc_reset_sig_from_bss() ); execute( TC_bvc_reset_ptp_from_sgsn() ); execute( TC_bvc_reset_sig_from_sgsn() ); if (mp_enable_bss_load_sharing) { /* don't enable this by default, as we don't yet have any automatic test setup for FR with 4 NS-VC */ execute( TC_load_sharing_dl() ); } /* PAGING-PS over PTP BVC */ execute( TC_paging_ps_ptp_bss() ); execute( TC_paging_ps_ptp_lac() ); execute( TC_paging_ps_ptp_lac_unknown() ); execute( TC_paging_ps_ptp_rac() ); execute( TC_paging_ps_ptp_rac_unknown() ); execute( TC_paging_ps_ptp_bvci() ); execute( TC_paging_ps_ptp_bvci_unknown() ); /* PAGING-PS over SIG BVC */ execute( TC_paging_ps_sig_bss() ); execute( TC_paging_ps_sig_lac() ); execute( TC_paging_ps_sig_lac_unknown() ); execute( TC_paging_ps_sig_rac() ); execute( TC_paging_ps_sig_rac_unknown() ); execute( TC_paging_ps_sig_bvci() ); execute( TC_paging_ps_sig_bvci_unknown() ); /* PAGING-CS over PTP BVC */ execute( TC_paging_cs_ptp_bss() ); execute( TC_paging_cs_ptp_lac() ); execute( TC_paging_cs_ptp_lac_unknown() ); execute( TC_paging_cs_ptp_rac() ); execute( TC_paging_cs_ptp_rac_unknown() ); execute( TC_paging_cs_ptp_bvci() ); execute( TC_paging_cs_ptp_bvci_unknown() ); /* PAGING-CS over SIG BVC */ execute( TC_paging_cs_sig_bss() ); execute( TC_paging_cs_sig_lac() ); execute( TC_paging_cs_sig_lac_unknown() ); execute( TC_paging_cs_sig_rac() ); execute( TC_paging_cs_sig_rac_unknown() ); execute( TC_paging_cs_sig_bvci() ); execute( TC_paging_cs_sig_bvci_unknown() ); execute( TC_flush_ll() ); execute( TC_fc_bvc() ); execute( TC_fc_ms() ); } }