501 lines
12 KiB
Plaintext
501 lines
12 KiB
Plaintext
module NS_Tests {
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/* Osmocom NS test suite for NS over framerelay or udp ip.access style in TTCN-3
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* (C) 2021 sysmocom s.f.m.c. GmbH <info@sysmocom.de>
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* Author: Alexander Couzens <lynxis@fe80.eu>
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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 General_Types all;
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import from Osmocom_Types all;
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import from Osmocom_Gb_Types all;
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import from NS_Types all;
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import from BSSGP_Types all;
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import from UD_Types all;
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import from NS_Emulation all;
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import from Native_Functions all;
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import from IPL4asp_Types all;
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import from RAW_NS all;
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import from Osmocom_VTY_Functions all;
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import from TELNETasp_PortType all;
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modulepar {
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OsmoNsDialect mp_dialect := NS2_DIALECT_IPACCESS;
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NSConfiguration mp_nsconfig := {
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nsei := 96,
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role_sgsn := false,
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handle_sns := false,
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nsvc := {
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{
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provider := {
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ip := {
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address_family := AF_INET,
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local_udp_port := 21000,
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local_ip := "127.0.0.1",
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remote_udp_port := 23000,
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remote_ip := "127.0.0.1"
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}
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},
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nsvci := 97
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}
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}
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};
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}
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type component RAW_Test_CT extends RAW_NS_CT {
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port TELNETasp_PT NSVTY;
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}
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private function f_init_vty() runs on RAW_Test_CT {
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map(self:NSVTY, system:NSVTY);
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f_vty_set_prompts(NSVTY);
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f_vty_transceive(NSVTY, "enable");
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f_vty_transceive(NSVTY, "nsvc nsei " & int2str(mp_nsconfig.nsei) & " force-unconfigured");
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}
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/* ensure no matching message is received within 'tout' */
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function f_ensure_no_ns(integer idx := 0, boolean answer_alive := false, float tout := 3.0)
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runs on RAW_Test_CT {
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var PDU_NS nrf;
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timer T := tout;
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var default d := activate(ax_rx_fail_on_any_ns(idx));
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T.start;
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alt {
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[answer_alive] as_rx_alive_tx_ack();
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[] T.timeout {
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setverdict(pass);
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}
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}
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deactivate(d);
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}
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function f_fails_except_reset(integer idx := 0, float tout := 15.0)
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runs on RAW_Test_CT {
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var PDU_NS nrf;
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timer T := 15.0;
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T.start;
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alt {
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[] NSCP[idx].receive(tr_NS_RESET(*, *, *)) {
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repeat;
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}
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[] NSCP[idx].receive(PDU_NS: ?) -> value nrf {
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setverdict(fail, "Received unexpected NS: ", nrf);
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mtc.stop;
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}
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[] T.timeout {
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setverdict(pass);
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}
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}
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}
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testcase TC_tx_reset() runs on RAW_Test_CT {
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f_init_vty();
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f_init_ns_codec(mp_nsconfig, guard_secs := 10.0);
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/* do a NS Reset procedure */
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f_outgoing_ns_reset();
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setverdict(pass);
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f_sleep(1.0);
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}
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testcase TC_tx_reset_tx_alive() runs on RAW_Test_CT {
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f_init_vty();
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f_init_ns_codec(mp_nsconfig, guard_secs := 10.0);
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/* do a NS Reset procedure */
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f_outgoing_ns_reset();
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/* check outgoing NS procedure */
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f_outgoing_ns_alive();
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setverdict(pass);
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f_sleep(1.0);
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}
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testcase TC_tx_reset_rx_alive() runs on RAW_Test_CT {
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f_init_vty();
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f_init_ns_codec(mp_nsconfig, guard_secs := 10.0);
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/* do a NS Reset procedure */
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f_outgoing_ns_reset();
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activate(as_rx_ns_unblock_ack());
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/* check outgoing NS procedure */
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as_rx_alive_tx_ack(oneshot := true);
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setverdict(pass);
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f_sleep(1.0);
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}
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/* 48.016 7.2 unblock procedure
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*
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* TTCN -> NS: reset
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* TTCN <- NS: reset ack
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* TTCN -> NS: unblock
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* TTCN <- NS: unblock ack
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*/
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testcase TC_tx_unblock() runs on RAW_Test_CT {
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f_init_vty();
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f_init_ns_codec(mp_nsconfig, guard_secs := 30.0);
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/* do a NS Reset procedure */
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f_outgoing_ns_reset();
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/* send alive acks */
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activate(as_rx_alive_tx_ack());
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f_outgoing_ns_unblock();
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setverdict(pass);
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f_sleep(1.0);
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}
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/* 48.016 7.2 tx unblock retries
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*
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* TTCN -> NS: reset
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* TTCN <- NS: reset ack
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* TTCN -> NS: unblock
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* TTCN <- NS: unblock ack
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* TTCN -> NS: unblock
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* TTCN <- NS: unblock ack
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* TTCN -> NS: unblock
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* TTCN <- NS: unblock ack
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*/
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testcase TC_tx_unblock_retries() runs on RAW_Test_CT {
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f_init_vty();
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f_init_ns_codec(mp_nsconfig, guard_secs := 30.0);
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/* do a NS Reset procedure */
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f_outgoing_ns_reset();
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/* send alive acks */
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activate(as_rx_alive_tx_ack());
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f_outgoing_ns_unblock();
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f_outgoing_ns_unblock();
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f_outgoing_ns_unblock();
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setverdict(pass);
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f_sleep(1.0);
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}
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/* 48.016 7.2 block procedure
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*
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* TTCN -> NS: reset
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* TTCN <- NS: reset ack
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* TTCN -> NS: unblock
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* TTCN <- NS: unblock ack
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* TTCN -> NS: block
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* TTCN <- NS: block ack
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*/
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testcase TC_tx_block() runs on RAW_Test_CT {
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f_init_vty();
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f_init_ns_codec(mp_nsconfig, guard_secs := 30.0);
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/* do a NS Reset procedure */
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f_outgoing_ns_reset();
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activate(as_rx_alive_tx_ack());
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f_outgoing_ns_unblock();
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f_sleep(1.0);
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f_outgoing_ns_block(NS_CAUSE_EQUIPMENT_FAILURE);
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setverdict(pass);
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f_sleep(1.0);
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}
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/* 48.016 7.2 block procedure by vty
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*
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* TTCN -> NS: reset
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* TTCN <- NS: reset ack
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* TTCN -> NS: unblock
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* TTCN <- NS: unblock ack
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* vty: block nsvc
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* TTCN <- NS: block
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* TTCN -> NS: block ack
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*/
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function tx_block_by_vty(float guard_secs := 30.0) runs on RAW_Test_CT {
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f_init_vty();
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f_init_ns_codec(mp_nsconfig, guard_secs := guard_secs);
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/* do a NS Reset procedure */
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f_outgoing_ns_reset();
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activate(as_rx_alive_tx_ack());
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f_outgoing_ns_unblock();
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f_sleep(1.0);
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f_vty_transceive(NSVTY, "nsvc " & int2str(mp_nsconfig.nsvc[0].nsvci) & " block");
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alt {
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[] as_rx_ns_block_ack(oneshot := true, nsvci := mp_nsconfig.nsvc[0].nsvci);
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}
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setverdict(pass);
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}
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testcase TC_tx_block_by_vty() runs on RAW_Test_CT {
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tx_block_by_vty(30.0);
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f_sleep(1.0);
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}
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/* 48.016 7.2 block precedure by vty and reset the NSVC.
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* The NSVC should be still blocked after the reset.
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*/
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testcase TC_tx_block_by_vty_reset() runs on RAW_Test_CT {
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timer T := 10.0;
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tx_block_by_vty(60.0);
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f_outgoing_ns_reset();
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var default d := activate(ax_rx_fail_on_any_ns());
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T.start;
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alt {
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[] as_rx_alive_tx_ack();
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[] T.timeout { setverdict(pass); }
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}
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deactivate(d);
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}
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/* 48.016 7.4.1 ignore unexpected NS_ALIVE ACK */
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testcase TC_no_reset_alive_ack() runs on RAW_Test_CT {
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f_init_vty();
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f_init_ns_codec(mp_nsconfig, guard_secs := 30.0);
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NSCP[0].send(t_NS_ALIVE_ACK);
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f_fails_except_reset();
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setverdict(pass);
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f_sleep(1.0);
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}
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/* 48.016 7.3.1 NS_RESET with wrong nsei */
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testcase TC_reset_wrong_nsei() runs on RAW_Test_CT {
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f_init_vty();
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f_init_ns_codec(mp_nsconfig, guard_secs := 30.0);
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NSCP[0].send(ts_NS_RESET(NS_CAUSE_EQUIPMENT_FAILURE, g_nsconfig.nsvc[0].nsvci, g_nsconfig.nsei + 20));
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NSCP[0].receive(tr_NS_RESET_ACK(g_nsconfig.nsvc[0].nsvci, g_nsconfig.nsei));
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f_fails_except_reset();
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setverdict(pass);
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f_sleep(1.0);
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}
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/* 48.016 7.3.1 NS_RESET with wrong nsvci */
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testcase TC_reset_wrong_nsvci() runs on RAW_Test_CT {
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f_init_vty();
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f_init_ns_codec(mp_nsconfig, guard_secs := 30.0);
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NSCP[0].send(ts_NS_RESET(NS_CAUSE_EQUIPMENT_FAILURE, g_nsconfig.nsvc[0].nsvci + 20, g_nsconfig.nsei));
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NSCP[0].receive(tr_NS_RESET_ACK(g_nsconfig.nsvc[0].nsvci, g_nsconfig.nsei));
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f_fails_except_reset();
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setverdict(pass);
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f_sleep(1.0);
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}
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/* 48.016 7.3.1 NS_RESET with wrong nsvci + nsei */
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testcase TC_reset_wrong_nsei_nsvci() runs on RAW_Test_CT {
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f_init_vty();
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f_init_ns_codec(mp_nsconfig, guard_secs := 30.0);
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NSCP[0].send(ts_NS_RESET(NS_CAUSE_EQUIPMENT_FAILURE, g_nsconfig.nsvc[0].nsvci + 20, g_nsconfig.nsei + 20));
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NSCP[0].receive(tr_NS_RESET_ACK(g_nsconfig.nsvc[0].nsvci, g_nsconfig.nsei));
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f_fails_except_reset();
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setverdict(pass);
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f_sleep(1.0);
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}
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/* 48.016 7.3.1 NS_RESET_ACK with wrong nsei */
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testcase TC_reset_ack_wrong_nsei() runs on RAW_Test_CT {
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f_init_vty();
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f_init_ns_codec(mp_nsconfig, guard_secs := 30.0);
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NSCP[0].receive(tr_NS_RESET(*, g_nsconfig.nsvc[0].nsvci, g_nsconfig.nsei));
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NSCP[0].send(ts_NS_RESET_ACK(g_nsconfig.nsvc[0].nsvci, g_nsconfig.nsei + 20));
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f_fails_except_reset();
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setverdict(pass);
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f_sleep(1.0);
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}
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/* 48.016 7.3.1 NS_RESET_ACK with wrong nsvci */
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testcase TC_reset_ack_wrong_nsvci() runs on RAW_Test_CT {
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f_init_vty();
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f_init_ns_codec(mp_nsconfig, guard_secs := 30.0);
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NSCP[0].receive(tr_NS_RESET(*, g_nsconfig.nsvc[0].nsvci, g_nsconfig.nsei));
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NSCP[0].send(ts_NS_RESET_ACK(g_nsconfig.nsvc[0].nsvci + 20, g_nsconfig.nsei));
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f_fails_except_reset();
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setverdict(pass);
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f_sleep(1.0);
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}
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/* 48.016 7.3.1 NS_RESET_ACK with wrong nsvci + nsei */
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testcase TC_reset_ack_wrong_nsei_nsvci() runs on RAW_Test_CT {
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f_init_vty();
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f_init_ns_codec(mp_nsconfig, guard_secs := 30.0);
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NSCP[0].receive(tr_NS_RESET(*, g_nsconfig.nsvc[0].nsvci, g_nsconfig.nsei));
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NSCP[0].send(ts_NS_RESET_ACK(g_nsconfig.nsvc[0].nsvci + 20, g_nsconfig.nsei + 20));
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f_fails_except_reset();
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setverdict(pass);
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f_sleep(1.0);
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}
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/* 48.016 7.3.1 ignore unexpected NS_RESET_ACK after NS_RESET+ALIVE */
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testcase TC_ignore_reset_ack() runs on RAW_Test_CT {
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f_init_vty();
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f_init_ns_codec(mp_nsconfig, guard_secs := 30.0);
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/* do a NS Reset procedure */
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f_outgoing_ns_reset();
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/* unblock and alive */
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alt {
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[] as_rx_ns_unblock_ack(oneshot := true);
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[] as_rx_alive_tx_ack();
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}
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NSCP[0].send(ts_NS_RESET_ACK(g_nsconfig.nsvc[0].nsvci, g_nsconfig.nsei));
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f_ensure_no_ns(answer_alive := true, tout := 15.0);
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setverdict(pass);
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f_sleep(1.0);
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}
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/* 48.016 7.3 NS_RESET retries */
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testcase TC_reset_retries() runs on RAW_Test_CT {
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var integer reset := 0;
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f_init_vty();
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f_init_ns_codec(mp_nsconfig, guard_secs := 30.0);
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alt {
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[] NSCP[0].receive(tr_NS_RESET(*, *, *)) {
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reset := reset + 1;
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if (reset <= 3) {
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repeat;
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} else {
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setverdict(pass);
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}
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}
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}
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f_sleep(1.0);
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}
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/* 48.016 behave RESET_ACK got dropped
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* TTCN -> NS: reset
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* TTCN <- NS: reset ack
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* TTCN <- NS: unblock
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* TTCN -> NS: reset
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* TTCN <- NS: reset ack
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* TTCN <- NS: unblock
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*/
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testcase TC_reset_on_block_reset() runs on RAW_Test_CT {
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var integer i := 0;
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f_init_vty();
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f_init_ns_codec(mp_nsconfig, guard_secs := 30.0);
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f_outgoing_ns_reset();
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activate(as_rx_alive_tx_ack());
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alt {
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[] NSCP[0].receive(t_NS_UNBLOCK) {
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NSCP[0].send(ts_NS_RESET(NS_CAUSE_EQUIPMENT_FAILURE, g_nsconfig.nsvc[0].nsvci, g_nsconfig.nsei));
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i := i + 1;
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if (i < 3) {
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repeat;
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} else {
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setverdict(pass);
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}
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}
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[] NSCP[0].receive(tr_NS_RESET_ACK(g_nsconfig.nsvc[0].nsvci, g_nsconfig.nsei)) { repeat; }
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}
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f_sleep(1.0);
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}
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/* 48.016 7.4 test procedure for frame relay with a single nsvci */
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function f_alive_retries_single(boolean reset := false) runs on RAW_Test_CT {
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f_init_vty();
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f_init_ns_codec(mp_nsconfig, guard_secs := 60.0);
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/* do a NS Reset procedure */
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f_outgoing_ns_reset();
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alt {
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[] as_rx_ns_unblock_ack(oneshot := true);
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[] as_rx_alive_tx_ack();
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}
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/* wait for one alive and answer it */
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as_rx_alive_tx_ack(oneshot := true);
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NSCP[0].receive(t_NS_ALIVE);
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NSCP[0].receive(t_NS_ALIVE);
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NSCP[0].receive(t_NS_ALIVE);
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NSCP[0].receive(t_NS_ALIVE);
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if (reset) {
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NSCP[0].receive(tr_NS_RESET(*, g_nsconfig.nsvc[0].nsvci, g_nsconfig.nsei));
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} else {
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f_ensure_no_ns(tout := 10.0);
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}
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setverdict(pass);
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f_sleep(1.0);
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}
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testcase TC_alive_retries_single_reset() runs on RAW_Test_CT {
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f_alive_retries_single(reset := true);
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}
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testcase TC_alive_retries_single_no_resp() runs on RAW_Test_CT {
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f_alive_retries_single(reset := false);
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}
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control {
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execute( TC_tx_reset() );
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/* 48.016 7.2 Block procedure */
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execute( TC_tx_block() );
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execute( TC_tx_block_by_vty() );
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execute( TC_tx_block_by_vty_reset() );
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// execute( TC_block_other_nsvc() ); // reset, unblock, sleep(1), block over another nsvci
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/* 48.016 7.2 Unblock procedure */
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execute( TC_tx_unblock() );
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execute( TC_tx_unblock_retries() );
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// execute( TC_rx_unblock_tx_unblock() ); // wait for an rx unblock pdu, send an unblock pdu, expect unblock ack pdu
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// execute( TC_unblockable() ); // block a NS-VCI via vty, try block procedure
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/* 48.016 7.2.1 Block Abnormal Condition */
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/* 48.016 7.2.1 Unblock Abnormal Condition */
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/* 48.016 7.3.1 Abnormal Condition */
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if (mp_dialect == NS2_DIALECT_STATIC_RESETBLOCK) {
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execute( TC_reset_wrong_nsei() );
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execute( TC_reset_wrong_nsvci() );
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execute( TC_reset_wrong_nsei_nsvci() );
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execute( TC_reset_ack_wrong_nsei() );
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execute( TC_reset_ack_wrong_nsvci() );
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execute( TC_reset_ack_wrong_nsei_nsvci() );
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execute( TC_reset_retries() );
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execute( TC_reset_on_block_reset() );
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}
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execute( TC_ignore_reset_ack() );
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/* 48.016 7.4 Test procedure on frame relay */
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execute( TC_tx_reset_tx_alive() );
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execute( TC_tx_reset_rx_alive() );
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/* 48.016 7.4.1 Abnormal Condition */
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if (mp_dialect == NS2_DIALECT_STATIC_RESETBLOCK) {
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// execute( TC_alive_retries_multi() ); // check if alive retries works and block over an alive nsvc
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execute( TC_alive_retries_single_reset() );
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} else if (mp_dialect == NS2_DIALECT_IPACCESS) {
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execute( TC_alive_retries_single_no_resp() );
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}
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execute( TC_no_reset_alive_ack() );
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}
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}
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