| module PCU_Tests_NS { |
| |
| /* Osmocom PCU test suite for IP Sub-Network-Service (SNS) in TTCN-3 |
| * (C) 2018-2019 Harald Welte <laforge@gnumonks.org> |
| * 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 General_Types all; |
| import from Osmocom_Types all; |
| import from Osmocom_VTY_Functions all; |
| import from TELNETasp_PortType all; |
| import from PCU_Tests all; |
| import from SGSN_Components all; |
| import from Osmocom_Gb_Types all; |
| import from NS_Types all; |
| import from BSSGP_Types all; |
| import from UD_Types all; |
| import from NS_Emulation all; |
| import from Native_Functions all; |
| import from IPL4asp_Types all; |
| import from PCUIF_Types all; |
| import from PCUIF_CodecPort all; |
| import from RAW_NS all; |
| |
| type component RAW_PCU_CT { |
| /* PCUIF (we emulate the BTS part) */ |
| port PCUIF_CODEC_PT PCU; |
| var ConnectionId g_pcu_conn_id := -1; |
| /* VTY connection to the PCU */ |
| port TELNETasp_PT PCUVTY; |
| } |
| |
| type component RAW_Test_CT extends RAW_NS_CT, RAW_PCU_CT { |
| } |
| |
| function f_init_vty(charstring id) runs on RAW_PCU_CT { |
| map(self:PCUVTY, system:PCUVTY); |
| f_vty_set_prompts(PCUVTY); |
| f_vty_transceive(PCUVTY, "enable"); |
| } |
| |
| function f_init_pcuif() runs on RAW_PCU_CT { |
| var PCUIF_info_ind info_ind; |
| map(self:PCU, system:PCU); |
| |
| |
| info_ind := valueof(ts_PCUIF_INFO_default); |
| |
| /* Connect the Unix Domain Socket */ |
| g_pcu_conn_id := f_pcuif_listen(PCU, mp_pcu_sock_path); |
| PCU.receive(UD_connected:?); |
| |
| /* Wait for PCU_VERSION and return INFO_IND */ |
| PCU.receive(t_SD_PCUIF(g_pcu_conn_id, tr_PCUIF_TXT_IND(0, PCU_VERSION, ?))); |
| /* FIXME: make sure to use parameters from mp_gb_cfg.bvc[0].cell_id in the PCU INFO IND */ |
| var template PCUIF_Message info_ind_msg := ts_PCUIF_INFO_IND(0, info_ind); |
| PCU.send(t_SD_PCUIF(g_pcu_conn_id, info_ind_msg)); |
| } |
| |
| function f_pcuif_tx(template (value) PCUIF_Message msg) runs on RAW_PCU_CT { |
| PCU.send(t_SD_PCUIF(g_pcu_conn_id, msg)); |
| } |
| |
| /* ensure no matching message is received within 'tout' */ |
| function f_ensure_no_ns(template PDU_NS ns := ?, integer idx := 0, float tout := 3.0) |
| runs on RAW_Test_CT { |
| timer T := tout; |
| T.start; |
| alt { |
| [] NSCP[idx].receive(ns) { |
| setverdict(fail, "NS-ALIVE from unconfigured (possibly initial) endpoint"); |
| } |
| [] T.timeout { |
| setverdict(pass); |
| } |
| } |
| } |
| |
| /* test the NS-RESET procedure */ |
| testcase TC_ns_reset() runs on RAW_Test_CT { |
| f_init_ns_codec(mp_nsconfig); |
| f_init_pcuif(); |
| |
| |
| /* Expect inbound NS-RESET procedure */ |
| as_rx_ns_reset_ack(oneshot := true); |
| setverdict(pass); |
| f_clean_ns_codec(); |
| } |
| |
| /* ensure NS-RESET are re-transmitted */ |
| testcase TC_ns_reset_retrans() runs on RAW_Test_CT { |
| f_init_ns_codec(mp_nsconfig); |
| f_init_pcuif(); |
| |
| var integer i; |
| for (i := 0; i < 3; i := i+1) { |
| NSCP[0].receive(tr_NS_RESET(NS_CAUSE_OM_INTERVENTION, |
| g_nsconfig.nsvc[0].nsvci, g_nsconfig.nsei)); |
| } |
| |
| /* Expect inbound NS-RESET procedure */ |
| as_rx_ns_reset_ack(oneshot := true); |
| setverdict(pass); |
| f_clean_ns_codec(); |
| } |
| |
| /* test the inbound NS-ALIVE procedure after NS-RESET */ |
| testcase TC_ns_alive() runs on RAW_Test_CT { |
| f_init_ns_codec(mp_nsconfig); |
| f_init_pcuif(); |
| |
| /* Expect inbound NS-RESET procedure */ |
| as_rx_ns_reset_ack(oneshot := true); |
| |
| alt { |
| /* wait for one ALIVE cycle, then ACK any further ALIVE in the background */ |
| [] NSCP[0].receive(t_NS_ALIVE) { setverdict(pass); }; |
| [] NSCP[0].receive(t_NS_UNBLOCK) { repeat; } |
| } |
| f_clean_ns_codec(); |
| } |
| |
| /* Test for NS-RESET after NS-ALIVE timeout */ |
| testcase TC_ns_alive_timeout_reset() runs on RAW_Test_CT { |
| f_init_ns_codec(mp_nsconfig, guard_secs := 100.0); |
| f_init_pcuif(); |
| |
| /* Expect inbound NS-RESET procedure */ |
| as_rx_ns_reset_ack(oneshot := true); |
| |
| /* wait for at least one NS-ALIVE */ |
| alt { |
| [] as_rx_alive_tx_ack(oneshot := true) { }; |
| [] NSCP[0].receive(t_NS_UNBLOCK) { repeat; } |
| } |
| |
| /* wait for NS-RESET to re-appear, ignoring any NS-ALIVE until then */ |
| alt { |
| [] as_rx_ns_reset_ack(oneshot := true) { setverdict(pass); } |
| [] NSCP[0].receive(t_NS_ALIVE) { repeat; } |
| [] NSCP[0].receive(t_NS_UNBLOCK) { repeat; } |
| } |
| |
| f_clean_ns_codec(); |
| } |
| |
| /* test for NS-RESET/NS-ALIVE/NS-UNBLOCK */ |
| testcase TC_ns_unblock() runs on RAW_Test_CT { |
| f_init_ns_codec(mp_nsconfig); |
| f_init_pcuif(); |
| |
| /* Expect inbound NS-RESET procedure */ |
| as_rx_ns_reset_ack(oneshot := true); |
| |
| /* keep it alive */ |
| activate(as_rx_alive_tx_ack()); |
| |
| as_rx_ns_unblock_ack(oneshot := true); |
| setverdict(pass); |
| f_clean_ns_codec(); |
| } |
| |
| /* test for NS-UNBLOCK re-transmissions */ |
| testcase TC_ns_unblock_retrans() runs on RAW_Test_CT { |
| f_init_ns_codec(mp_nsconfig); |
| f_init_pcuif(); |
| |
| /* Expect inbound NS-RESET procedure */ |
| as_rx_ns_reset_ack(oneshot := true); |
| |
| /* keep it alive */ |
| activate(as_rx_alive_tx_ack()); |
| |
| /* wait for first NS-UNBLOCK, don't respond */ |
| NSCP[0].receive(t_NS_UNBLOCK); |
| |
| /* wait for re-transmission of NS-UNBLOCK */ |
| as_rx_ns_unblock_ack(oneshot := true); |
| setverdict(pass); |
| f_clean_ns_codec(); |
| } |
| |
| /* full bring-up of the Gb link for NS and BSSGP layer up to BVC-FC */ |
| testcase TC_ns_full_bringup() runs on RAW_Test_CT { |
| f_init_ns_codec(mp_nsconfig); |
| f_init_pcuif(); |
| |
| /* Expect inbound NS-RESET procedure */ |
| as_rx_ns_reset_ack(oneshot := true); |
| |
| /* keep it alive */ |
| activate(as_rx_alive_tx_ack()); |
| |
| as_rx_ns_unblock_ack(oneshot := true); |
| |
| f_outgoing_ns_alive(); |
| |
| /* Expect BVC-RESET for signaling (0) and ptp BVCI */ |
| as_rx_bvc_reset_tx_ack(0, omit, omit, oneshot := true); |
| as_rx_bvc_reset_tx_ack(mp_gb_cfg.bvc[0].bvci, mp_gb_cfg.bvc[0].cell_id, omit, oneshot := true); |
| as_rx_bvc_unblock_tx_ack(mp_gb_cfg.bvc[0].bvci, oneshot := true); |
| |
| /* wait for one FLOW-CONTROL BVC and then ACK any further in the future */ |
| as_rx_bvc_fc_tx_ack(mp_gb_cfg.bvc[0].bvci, oneshot := true); |
| activate(as_rx_bvc_fc_tx_ack(mp_gb_cfg.bvc[0].bvci)); |
| setverdict(pass); |
| f_clean_ns_codec(); |
| } |
| |
| /* test outbound (SGSN-originated) NS-BLOCK procedure */ |
| testcase TC_ns_so_block() runs on RAW_Test_CT { |
| f_init_ns_codec(mp_nsconfig); |
| f_init_pcuif(); |
| |
| /* Expect inbound NS-RESET procedure */ |
| as_rx_ns_reset_ack(oneshot := true); |
| |
| /* keep it alive */ |
| activate(as_rx_alive_tx_ack()); |
| |
| as_rx_ns_unblock_ack(oneshot := true); |
| |
| f_outgoing_ns_alive(); |
| |
| f_outgoing_ns_block(NS_CAUSE_EQUIPMENT_FAILURE); |
| setverdict(pass); |
| f_clean_ns_codec(); |
| } |
| |
| |
| control { |
| execute( TC_ns_reset() ); |
| execute( TC_ns_reset_retrans() ); |
| execute( TC_ns_alive() ); |
| execute( TC_ns_alive_timeout_reset() ); |
| execute( TC_ns_unblock() ); |
| execute( TC_ns_unblock_retrans() ); |
| execute( TC_ns_full_bringup() ); |
| execute( TC_ns_so_block() ); |
| } |
| |
| } |