Osmocom test suites in TTCN-3 (Eclipse Titan) https://osmocom.org/projects/core-testing-infra
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 
osmo-ttcn3-hacks/ns/NS_Tests.ttcn

1105 lines
30 KiB

module NS_Tests {
/* Osmocom NS test suite for NS over framerelay or udp ip.access style in TTCN-3
* (C) 2021 sysmocom s.f.m.c. GmbH <info@sysmocom.de>
* Author: Alexander Couzens <lynxis@fe80.eu>
* 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_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 RAW_NS all;
import from Osmocom_VTY_Functions all;
import from TELNETasp_PortType all;
type enumerated SnsRole {
SNS_ROLE_BSS ('00'H),
SNS_ROLE_SGSN ('01'H)
};
modulepar {
SnsRole mp_sns_role := SNS_ROLE_BSS;
OsmoNsDialect mp_dialect := NS2_DIALECT_IPACCESS;
NSConfiguration mp_nsconfig := {
nsei := 96,
role_sgsn := false,
handle_sns := false,
nsvc := {
{
provider := {
ip := {
address_family := AF_INET,
local_udp_port := 21000,
local_ip := "127.0.0.1",
remote_udp_port := 23000,
remote_ip := "127.0.0.1",
data_weight := 2,
signalling_weight := 2
}
},
nsvci := 97
},
{
provider := {
ip := {
address_family := AF_INET,
local_udp_port := 21000,
local_ip := "127.0.0.1",
remote_udp_port := 23001,
remote_ip := "127.0.0.1",
data_weight := 1,
signalling_weight := 1
}
},
nsvci := 98
}
}
};
}
type component RAW_Test_CT extends RAW_NS_CT {
port TELNETasp_PT NSVTY;
}
private function f_init_vty() runs on RAW_Test_CT {
map(self:NSVTY, system:NSVTY);
f_vty_set_prompts(NSVTY);
f_vty_transceive(NSVTY, "enable");
f_vty_config2(NSVTY, {}, "mirror-mode disable");
f_vty_transceive(NSVTY, "nsvc nsei " & int2str(mp_nsconfig.nsei) & " force-unconfigured");
if (mp_dialect == NS2_DIALECT_SNS) {
f_vty_config2(NSVTY, {"ns", "nse " & int2str(mp_nsconfig.nsei)}, "ip-sns-bind local");
f_vty_config2(NSVTY, {"ns", "nse " & int2str(mp_nsconfig.nsei)}, "no ip-sns-bind local2");
f_vty_config2(NSVTY, {"ns", "bind udp local"}, "ip-sns signalling-weight 1 data-weight 1");
f_vty_config2(NSVTY, {"ns", "bind udp local2"}, "ip-sns signalling-weight 1 data-weight 1");
}
}
/* ensure no matching message is received within 'tout' */
function f_ensure_no_ns(integer idx := 0, boolean answer_alive := false, float tout := 3.0)
runs on RAW_Test_CT {
var PDU_NS nrf;
timer T := tout;
var default d := activate(ax_rx_fail_on_any_ns(idx));
T.start;
alt {
[answer_alive] as_rx_alive_tx_ack();
[] T.timeout {
setverdict(pass);
}
}
deactivate(d);
}
function f_fails_except_reset(integer idx := 0, float tout := 15.0)
runs on RAW_Test_CT {
var PDU_NS nrf;
timer T := 15.0;
T.start;
alt {
[] NSCP[idx].receive(tr_NS_RESET(*, *, *)) {
repeat;
}
[] NSCP[idx].receive(PDU_NS: ?) -> value nrf {
setverdict(fail, "Received unexpected NS: ", nrf);
mtc.stop;
}
[] T.timeout {
setverdict(pass);
}
}
}
testcase TC_tx_reset() runs on RAW_Test_CT {
f_init_vty();
f_init_ns_codec(mp_nsconfig, guard_secs := 10.0);
/* do a NS Reset procedure */
f_outgoing_ns_reset();
setverdict(pass);
f_sleep(1.0);
f_clean_ns_codec();
}
testcase TC_tx_reset_tx_alive() runs on RAW_Test_CT {
f_init_vty();
f_init_ns_codec(mp_nsconfig, guard_secs := 10.0);
/* do a NS Reset procedure */
f_outgoing_ns_reset();
/* check outgoing NS procedure */
f_outgoing_ns_alive();
setverdict(pass);
f_sleep(1.0);
f_clean_ns_codec();
}
testcase TC_tx_reset_rx_alive() runs on RAW_Test_CT {
f_init_vty();
f_init_ns_codec(mp_nsconfig, guard_secs := 10.0);
/* do a NS Reset procedure */
f_outgoing_ns_reset();
activate(as_rx_ns_unblock_ack());
/* check outgoing NS procedure */
as_rx_alive_tx_ack(oneshot := true);
setverdict(pass);
f_sleep(1.0);
f_clean_ns_codec();
}
/* 48.016 7.2.1 transmit a UNIT DATA over a BLOCKED NSVC when ttcn3 blocked it
*
* TTCN -> NS: reset
* TTCN <- NS: reset ack
* TTCN -> NS: unblock
* TTCN <- NS: unblock ack
* TTCN -> NS: block
* TTCN <- NS: block ack
* TTCN -> NS: unitdata
* TTCN <- NS: status (cause blocked)
*/
testcase TC_tx_block_unitdata_over_blocked() runs on RAW_Test_CT {
f_tx_block();
f_sleep(1.0);
NSCP[0].send(ts_NS_UNITDATA(t_SduCtrlB, 42, '0011234242230101'O));
f_ns_exp(tr_NS_STATUS(NS_CAUSE_NSVC_BLOCKED));
setverdict(pass);
f_sleep(1.0);
f_clean_ns_codec();
}
/* 48.016 7.2.1 transmit a UNIT DATA over a BLOCKED NSVC when ns2 blocked it
*
* TTCN -> NS: reset
* TTCN <- NS: reset ack
* TTCN -> NS: unblock
* TTCN <- NS: unblock ack
* TTCN <- NS: block
* TTCN -> NS: block ack
* TTCN -> NS: unitdata
* TTCN <- NS: status (cause blocked)
*/
testcase TC_rx_block_unitdata_over_blocked() runs on RAW_Test_CT {
f_tx_block_by_vty();
f_sleep(1.0);
NSCP[0].send(ts_NS_UNITDATA(t_SduCtrlB, 42, '0011234242230101'O));
f_ns_exp(tr_NS_STATUS(NS_CAUSE_NSVC_BLOCKED));
setverdict(pass);
f_sleep(1.0);
f_clean_ns_codec();
}
/* 48.016 7.2 unblock procedure
*
* TTCN -> NS: reset
* TTCN <- NS: reset ack
* TTCN -> NS: unblock
* TTCN <- NS: unblock ack
*/
function f_tx_unblock() runs on RAW_Test_CT {
f_init_vty();
f_init_ns_codec(mp_nsconfig, guard_secs := 30.0);
/* do a NS Reset procedure */
f_outgoing_ns_reset();
/* send alive acks */
activate(as_rx_alive_tx_ack());
f_outgoing_ns_unblock();
setverdict(pass);
}
testcase TC_tx_unblock() runs on RAW_Test_CT {
f_tx_unblock();
f_sleep(1.0);
f_clean_ns_codec();
}
/* 48.016 7.2 tx unblock retries
*
* TTCN -> NS: reset
* TTCN <- NS: reset ack
* TTCN -> NS: unblock
* TTCN <- NS: unblock ack
* TTCN -> NS: unblock
* TTCN <- NS: unblock ack
* TTCN -> NS: unblock
* TTCN <- NS: unblock ack
*/
testcase TC_tx_unblock_retries() runs on RAW_Test_CT {
f_init_vty();
f_init_ns_codec(mp_nsconfig, guard_secs := 30.0);
/* do a NS Reset procedure */
f_outgoing_ns_reset();
/* send alive acks */
activate(as_rx_alive_tx_ack());
f_outgoing_ns_unblock();
f_outgoing_ns_unblock();
f_outgoing_ns_unblock();
setverdict(pass);
f_sleep(1.0);
f_clean_ns_codec();
}
/* 48.016 7.2 block procedure
*
* TTCN -> NS: reset
* TTCN <- NS: reset ack
* TTCN -> NS: unblock
* TTCN <- NS: unblock ack
* TTCN -> NS: block
* TTCN <- NS: block ack
*/
function f_tx_block(float guard_secs := 30.0) runs on RAW_Test_CT {
f_init_vty();
f_init_ns_codec(mp_nsconfig, guard_secs := guard_secs);
/* do a NS Reset procedure */
f_outgoing_ns_reset();
activate(as_rx_alive_tx_ack());
f_outgoing_ns_unblock();
f_sleep(1.0);
f_outgoing_ns_block(NS_CAUSE_EQUIPMENT_FAILURE);
setverdict(pass);
f_sleep(1.0);
}
testcase TC_tx_block() runs on RAW_Test_CT {
f_tx_block()
f_clean_ns_codec();
}
/* 48.016 7.2 block procedure by vty
*
* TTCN -> NS: reset
* TTCN <- NS: reset ack
* TTCN -> NS: unblock
* TTCN <- NS: unblock ack
* vty: block nsvc
* TTCN <- NS: block
* TTCN -> NS: block ack
*/
function f_tx_block_by_vty(float guard_secs := 30.0) runs on RAW_Test_CT {
f_init_vty();
f_init_ns_codec(mp_nsconfig, guard_secs := guard_secs);
/* do a NS Reset procedure */
f_outgoing_ns_reset();
activate(as_rx_alive_tx_ack());
f_outgoing_ns_unblock();
f_sleep(1.0);
f_vty_transceive(NSVTY, "nsvc " & int2str(mp_nsconfig.nsvc[0].nsvci) & " block");
alt {
[] as_rx_ns_block_ack(oneshot := true, nsvci := mp_nsconfig.nsvc[0].nsvci);
}
setverdict(pass);
}
testcase TC_tx_block_by_vty() runs on RAW_Test_CT {
f_tx_block_by_vty(30.0);
f_sleep(1.0);
f_clean_ns_codec();
}
/* 48.016 7.2 block precedure by vty and reset the NSVC.
* The NSVC should be still blocked after the reset.
*/
testcase TC_tx_block_by_vty_reset() runs on RAW_Test_CT {
timer T := 10.0;
f_tx_block_by_vty(60.0);
f_outgoing_ns_reset();
var default d := activate(ax_rx_fail_on_any_ns());
T.start;
alt {
[] as_rx_alive_tx_ack();
[] T.timeout { setverdict(pass); }
}
deactivate(d);
f_clean_ns_codec();
}
/* 48.016 7.4.1 ignore unexpected NS_ALIVE ACK */
testcase TC_no_reset_alive_ack() runs on RAW_Test_CT {
f_init_vty();
f_init_ns_codec(mp_nsconfig, guard_secs := 30.0);
NSCP[0].send(t_NS_ALIVE_ACK);
f_fails_except_reset();
setverdict(pass);
f_sleep(1.0);
f_clean_ns_codec();
}
/* 48.016 7.3.1 NS_RESET with wrong nsei */
testcase TC_reset_wrong_nsei() runs on RAW_Test_CT {
f_init_vty();
f_init_ns_codec(mp_nsconfig, guard_secs := 30.0);
NSCP[0].send(ts_NS_RESET(NS_CAUSE_EQUIPMENT_FAILURE, g_nsconfig.nsvc[0].nsvci, g_nsconfig.nsei + 20));
NSCP[0].receive(tr_NS_RESET_ACK(g_nsconfig.nsvc[0].nsvci, g_nsconfig.nsei));
f_fails_except_reset();
setverdict(pass);
f_sleep(1.0);
f_clean_ns_codec();
}
/* 48.016 7.3.1 NS_RESET with wrong nsvci */
testcase TC_reset_wrong_nsvci() runs on RAW_Test_CT {
f_init_vty();
f_init_ns_codec(mp_nsconfig, guard_secs := 30.0);
NSCP[0].send(ts_NS_RESET(NS_CAUSE_EQUIPMENT_FAILURE, g_nsconfig.nsvc[0].nsvci + 20, g_nsconfig.nsei));
NSCP[0].receive(tr_NS_RESET_ACK(g_nsconfig.nsvc[0].nsvci, g_nsconfig.nsei));
f_fails_except_reset();
setverdict(pass);
f_sleep(1.0);
f_clean_ns_codec();
}
/* 48.016 7.3.1 NS_RESET with wrong nsvci + nsei */
testcase TC_reset_wrong_nsei_nsvci() runs on RAW_Test_CT {
f_init_vty();
f_init_ns_codec(mp_nsconfig, guard_secs := 30.0);
NSCP[0].send(ts_NS_RESET(NS_CAUSE_EQUIPMENT_FAILURE, g_nsconfig.nsvc[0].nsvci + 20, g_nsconfig.nsei + 20));
NSCP[0].receive(tr_NS_RESET_ACK(g_nsconfig.nsvc[0].nsvci, g_nsconfig.nsei));
f_fails_except_reset();
setverdict(pass);
f_sleep(1.0);
f_clean_ns_codec();
}
/* 48.016 7.3.1 NS_RESET_ACK with wrong nsei */
testcase TC_reset_ack_wrong_nsei() runs on RAW_Test_CT {
f_init_vty();
f_init_ns_codec(mp_nsconfig, guard_secs := 30.0);
NSCP[0].receive(tr_NS_RESET(*, g_nsconfig.nsvc[0].nsvci, g_nsconfig.nsei));
NSCP[0].send(ts_NS_RESET_ACK(g_nsconfig.nsvc[0].nsvci, g_nsconfig.nsei + 20));
f_fails_except_reset();
setverdict(pass);
f_sleep(1.0);
f_clean_ns_codec();
}
/* 48.016 7.3.1 NS_RESET_ACK with wrong nsvci */
testcase TC_reset_ack_wrong_nsvci() runs on RAW_Test_CT {
f_init_vty();
f_init_ns_codec(mp_nsconfig, guard_secs := 30.0);
NSCP[0].receive(tr_NS_RESET(*, g_nsconfig.nsvc[0].nsvci, g_nsconfig.nsei));
NSCP[0].send(ts_NS_RESET_ACK(g_nsconfig.nsvc[0].nsvci + 20, g_nsconfig.nsei));
f_fails_except_reset();
setverdict(pass);
f_sleep(1.0);
f_clean_ns_codec();
}
/* 48.016 7.3.1 NS_RESET_ACK with wrong nsvci + nsei */
testcase TC_reset_ack_wrong_nsei_nsvci() runs on RAW_Test_CT {
f_init_vty();
f_init_ns_codec(mp_nsconfig, guard_secs := 30.0);
NSCP[0].receive(tr_NS_RESET(*, g_nsconfig.nsvc[0].nsvci, g_nsconfig.nsei));
NSCP[0].send(ts_NS_RESET_ACK(g_nsconfig.nsvc[0].nsvci + 20, g_nsconfig.nsei + 20));
f_fails_except_reset();
setverdict(pass);
f_sleep(1.0);
f_clean_ns_codec();
}
/* 48.016 7.3.1 ignore unexpected NS_RESET_ACK after NS_RESET+ALIVE */
testcase TC_ignore_reset_ack() runs on RAW_Test_CT {
f_init_vty();
f_init_ns_codec(mp_nsconfig, guard_secs := 30.0);
/* do a NS Reset procedure */
f_outgoing_ns_reset();
/* unblock and alive */
alt {
[] as_rx_ns_unblock_ack(oneshot := true);
[] as_rx_alive_tx_ack();
}
NSCP[0].send(ts_NS_RESET_ACK(g_nsconfig.nsvc[0].nsvci, g_nsconfig.nsei));
f_ensure_no_ns(answer_alive := true, tout := 15.0);
setverdict(pass);
f_sleep(1.0);
f_clean_ns_codec();
}
/* 48.016 7.3 NS_RESET retries */
testcase TC_reset_retries() runs on RAW_Test_CT {
var integer reset := 0;
f_init_vty();
f_init_ns_codec(mp_nsconfig, guard_secs := 30.0);
alt {
[] NSCP[0].receive(tr_NS_RESET(*, *, *)) {
reset := reset + 1;
if (reset <= 3) {
repeat;
} else {
setverdict(pass);
}
}
}
f_sleep(1.0);
f_clean_ns_codec();
}
/* 48.016 behave RESET_ACK got dropped
* TTCN -> NS: reset
* TTCN <- NS: reset ack
* TTCN <- NS: unblock
* TTCN -> NS: reset
* TTCN <- NS: reset ack
* TTCN <- NS: unblock
*/
testcase TC_reset_on_block_reset() runs on RAW_Test_CT {
var integer i := 0;
f_init_vty();
f_init_ns_codec(mp_nsconfig, guard_secs := 30.0);
f_outgoing_ns_reset();
activate(as_rx_alive_tx_ack());
alt {
[] NSCP[0].receive(t_NS_UNBLOCK) {
NSCP[0].send(ts_NS_RESET(NS_CAUSE_EQUIPMENT_FAILURE, g_nsconfig.nsvc[0].nsvci, g_nsconfig.nsei));
i := i + 1;
if (i < 3) {
repeat;
} else {
setverdict(pass);
}
}
[] NSCP[0].receive(tr_NS_RESET_ACK(g_nsconfig.nsvc[0].nsvci, g_nsconfig.nsei)) { repeat; }
}
f_sleep(1.0);
f_clean_ns_codec();
}
/* 48.016 7.4 test procedure for frame relay with a single nsvci */
function f_alive_retries_single(boolean reset := false) runs on RAW_Test_CT {
f_init_vty();
f_init_ns_codec(mp_nsconfig, guard_secs := 60.0);
/* do a NS Reset procedure */
f_outgoing_ns_reset();
alt {
[] as_rx_ns_unblock_ack(oneshot := true);
[] as_rx_alive_tx_ack();
}
/* wait for one alive and answer it */
as_rx_alive_tx_ack(oneshot := true);
NSCP[0].receive(t_NS_ALIVE);
NSCP[0].receive(t_NS_ALIVE);
NSCP[0].receive(t_NS_ALIVE);
NSCP[0].receive(t_NS_ALIVE);
if (reset) {
NSCP[0].receive(tr_NS_RESET(*, g_nsconfig.nsvc[0].nsvci, g_nsconfig.nsei));
} else {
f_ensure_no_ns(tout := 10.0);
}
setverdict(pass);
f_sleep(1.0);
}
testcase TC_alive_retries_single_reset() runs on RAW_Test_CT {
f_alive_retries_single(reset := true);
f_clean_ns_codec();
}
testcase TC_alive_retries_single_no_resp() runs on RAW_Test_CT {
f_alive_retries_single(reset := false);
f_clean_ns_codec();
}
/* 48.016 SNS test cases */
/* do a succesful SNS configuration */
testcase TC_sns_bss_config_success() runs on RAW_Test_CT {
f_init_vty();
f_init_ns_codec(mp_nsconfig);
f_incoming_sns_size();
f_incoming_sns_config();
f_outgoing_sns_config();
setverdict(pass);
f_clean_ns_codec();
}
testcase TC_sns_bss_change_weight() runs on RAW_Test_CT {
g_handle_rx_alive := true;
f_init_vty();
f_init_ns_codec(mp_nsconfig);
f_incoming_sns_size();
f_incoming_sns_config();
f_outgoing_sns_config();
activate(as_rx_alive_tx_ack());
f_vty_config2(NSVTY, {"ns", "bind udp local"}, "ip-sns signalling-weight 99 data-weight 99");
f_incoming_sns_chg_weight();
setverdict(pass);
f_clean_ns_codec();
}
/* receive 3x SNS_CHG_WEIGHT but never answer on it */
testcase TC_sns_bss_change_weight_timeout() runs on RAW_Test_CT {
var integer i := 0;
var template PDU_NS rx;
var NSVCConfiguration nsvc_cfg;
g_handle_rx_alive := true;
f_init_vty();
f_init_ns_codec(mp_nsconfig);
f_incoming_sns_size();
f_incoming_sns_config();
f_outgoing_sns_config();
activate(as_rx_alive_tx_ack());
f_vty_config2(NSVTY, {"ns", "bind udp local"}, "ip-sns signalling-weight 99 data-weight 99");
nsvc_cfg := g_nsconfig.nsvc[0];
if (nsvc_cfg.provider.ip.address_family == AF_INET) {
var template IP4_Elements v4_elem := { tr_SNS_IPv4(nsvc_cfg.provider.ip.remote_ip,
nsvc_cfg.provider.ip.remote_udp_port) };
rx := tr_SNS_CHG_WEIGHT(g_nsconfig.nsei, ?, v4 := v4_elem);
} else {
var template IP6_Elements v6_elem := { tr_SNS_IPv6(nsvc_cfg.provider.ip.remote_ip,
nsvc_cfg.provider.ip.remote_udp_port) };
rx := tr_SNS_CHG_WEIGHT(g_nsconfig.nsei, ?, v4 := omit, v6 := v6_elem);
}
for (i := 0; i < 3; i := i + 1) {
f_ns_exp(rx);
}
if (nsvc_cfg.provider.ip.address_family == AF_INET) {
/* expect one single SNS-SIZE with RESET flag; 4x v4 EP; no v6 EP */
rx := f_ns_exp(tr_SNS_SIZE(g_nsconfig.nsei, rst_flag := true, max_nsvcs := ?,
num_v4 := ?, num_v6 := omit), 0);
} else {
/* expect one single SNS-SIZE with RESET flag; no v4 EP; 4x v6 EP */
rx := f_ns_exp(tr_SNS_SIZE(g_nsconfig.nsei, rst_flag := true, max_nsvcs := ?,
num_v4 := omit, num_v6 := ?), 0);
}
setverdict(pass);
f_clean_ns_codec();
}
testcase TC_sns_bss_add() runs on RAW_Test_CT {
g_handle_rx_alive := true;
f_init_vty();
f_init_ns_codec(mp_nsconfig);
f_init_ns_codec(mp_nsconfig, 1);
f_incoming_sns_size();
f_incoming_sns_config();
f_outgoing_sns_config();
activate(as_rx_alive_tx_ack());
f_vty_config2(NSVTY, {"ns", "nse " & int2str(g_nsconfig.nsei)}, "ip-sns-bind local2");
f_incoming_sns_add(idx_add := 1);
as_rx_alive_tx_ack(oneshot := true, idx := 1);
setverdict(pass);
f_clean_ns_codec();
}
testcase TC_sns_bss_del() runs on RAW_Test_CT {
g_handle_rx_alive := true;
f_init_vty();
f_init_ns_codec(mp_nsconfig);
f_init_ns_codec(mp_nsconfig, 1);
f_incoming_sns_size();
f_incoming_sns_config();
f_outgoing_sns_config();
activate(as_rx_alive_tx_ack());
f_vty_config2(NSVTY, {"ns", "nse " & int2str(g_nsconfig.nsei)}, "ip-sns-bind local2");
f_incoming_sns_add(idx_add := 1);
as_rx_alive_tx_ack(oneshot := true, idx := 1);
/* delete the endpoint */
f_vty_config2(NSVTY, {"ns", "nse " & int2str(g_nsconfig.nsei)}, "no ip-sns-bind local2");
f_incoming_sns_del(idx_del := 1);
setverdict(pass);
f_clean_ns_codec();
}
/* 1. do SNS configuration
* 2. add a bind
* 3. receive the SNS_ADD
* 4. before answering the SNS_ADD, change the weight via vty and remove the bind
*/
testcase TC_sns_bss_add_change_del() runs on RAW_Test_CT {
var PDU_NS rx;
var NSVCConfiguration nsvc_cfg;
g_handle_rx_alive := true;
f_init_vty();
f_init_ns_codec(mp_nsconfig);
f_init_ns_codec(mp_nsconfig, 1);
f_incoming_sns_size();
f_incoming_sns_config();
f_outgoing_sns_config();
activate(as_rx_alive_tx_ack());
f_vty_config2(NSVTY, {"ns", "nse " & int2str(g_nsconfig.nsei)}, "ip-sns-bind local2");
/* rx SNS ADD */
nsvc_cfg := g_nsconfig.nsvc[1];
if (nsvc_cfg.provider.ip.address_family == AF_INET) {
var template (omit) IP4_Elements v4_elem := { ts_SNS_IPv4(nsvc_cfg.provider.ip.remote_ip,
nsvc_cfg.provider.ip.remote_udp_port,
1, 1) };
rx := f_ns_exp(tr_SNS_ADD(g_nsconfig.nsei, ?, v4 := v4_elem), 0);
} else {
var template (omit) IP6_Elements v6_elem := { ts_SNS_IPv6(nsvc_cfg.provider.ip.remote_ip,
nsvc_cfg.provider.ip.remote_udp_port,
1, 1) };
rx := f_ns_exp(tr_SNS_ADD(g_nsconfig.nsei, ?, omit, v6_elem), 0);
}
/* delete the endpoint */
f_vty_config2(NSVTY, {"ns", "bind udp local2"}, "ip-sns signalling-weight 99 data-weight 99");
f_vty_config2(NSVTY, {"ns", "nse " & int2str(g_nsconfig.nsei)}, "no ip-sns-bind local2");
/* accept the SNS_ADD */
NSCP[0].send(ts_SNS_ACK(g_nsconfig.nsei, rx.pDU_SNS_Add.transactionID));
f_incoming_sns_chg_weight(idx_chg := 1);
f_incoming_sns_del(idx_del := 1, w_sig := 99, w_user := 99);
setverdict(pass);
f_clean_ns_codec();
}
/* Ensure the ns2 code doesn't crash when calling force unconfigured while sending SNS SIZE */
testcase TC_sns_rx_size_force_unconf() runs on RAW_Test_CT {
g_handle_rx_alive := true;
f_init_vty();
f_init_ns_codec(mp_nsconfig);
f_init_ns_codec(mp_nsconfig, 1);
f_ns_exp(tr_SNS_SIZE(mp_nsconfig.nsei, rst_flag := true, max_nsvcs := ?,
num_v4 := ?, num_v6 := omit));
f_vty_transceive(NSVTY, "nsvc nsei " & int2str(mp_nsconfig.nsei) & " force-unconfigured");
f_ns_exp(tr_SNS_SIZE(mp_nsconfig.nsei, rst_flag := true, max_nsvcs := ?,
num_v4 := ?, num_v6 := omit));
setverdict(pass);
f_clean_ns_codec();
}
/* Test if SNS fails when all signalling NSVCs failes
* 3GPP TS 48.016 § 7.4b.1.1
* 1. do success SNS configuration
* 2. change sig weight of the seconds inactive bind
* 3. add second bind to SNS
* 4. stop reacting to NS_ALIVE on first NSVC (only NSVC with sig weight)
* 5. expect SNS SIZE
*
* Broken: the test case tests the wrong side. The signalling
* and data weight are valid for the other side. The correct
* test case needs to add a second bind on the ttcn3 side.
*/
testcase TC_sns_bss_all_signalling_nsvcs_failed() runs on RAW_Test_CT {
g_handle_rx_alive := true;
f_init_vty();
f_init_ns_codec(mp_nsconfig);
f_init_ns_codec(mp_nsconfig, 1);
f_incoming_sns_size();
f_incoming_sns_config();
f_outgoing_sns_config();
var default d := activate(as_rx_alive_tx_ack());
f_vty_config2(NSVTY, {"ns", "bind udp local2"}, "ip-sns signalling-weight 0 data-weight 99");
f_vty_config2(NSVTY, {"ns", "nse " & int2str(g_nsconfig.nsei)}, "ip-sns-bind local2");
f_incoming_sns_add(idx_add := 1, w_sig := 0, w_user := 99);
as_rx_alive_tx_ack(oneshot := true, idx := 1);
activate(as_rx_alive_tx_ack(idx := 1));
/* 2x NSVCs up, stop first NSVC */
deactivate(d);
/* libosmocore will rotate the SNS binds on failure */
NSCP[0].receive(t_NS_ALIVE);
NSCP[0].receive(t_NS_ALIVE);
NSCP[0].receive(t_NS_ALIVE);
f_incoming_sns_size(idx := 1);
setverdict(pass);
f_clean_ns_codec();
}
/* Test if SNS fails when removing a bind which has the last valid connection
*
* ns2 has 2 binds, ttcn3 1 bind.
*
* nsvcs:
* ns2 ttcn3
* 1*-----------*1
* /
* 2*-broken--/
*
* remove the 1st ns2 bind.
*/
testcase TC_sns_bss_remove_bind_fail_sns() runs on RAW_Test_CT {
g_handle_rx_alive := true;
f_init_vty();
f_init_ns_codec(mp_nsconfig);
f_init_ns_codec(mp_nsconfig, 1);
f_incoming_sns_size();
f_incoming_sns_config();
f_outgoing_sns_config();
var default d := activate(as_rx_alive_tx_ack());
f_vty_config2(NSVTY, {"ns", "bind udp local2"}, "ip-sns signalling-weight 1 data-weight 1");
f_vty_config2(NSVTY, {"ns", "nse " & int2str(g_nsconfig.nsei)}, "ip-sns-bind local2");
f_incoming_sns_add(idx_add := 1, w_sig := 1, w_user := 1);
/* 2nd bind won't have a valid connection to the ttcn3 */
NSCP[1].receive(t_NS_ALIVE);
NSCP[1].receive(t_NS_ALIVE);
NSCP[1].receive(t_NS_ALIVE);
NSCP[1].receive(t_NS_ALIVE);
NSCP[1].receive(t_NS_ALIVE);
f_sleep(1.0);
f_vty_config2(NSVTY, {"ns", "nse " & int2str(g_nsconfig.nsei)}, "no ip-sns-bind local");
setverdict(pass);
f_clean_ns_codec();
}
testcase TC_idle() runs on RAW_Test_CT {
f_init_vty();
f_init_ns_codec(mp_nsconfig, guard_secs := 30.0);
/* do a NS Reset procedure */
f_outgoing_ns_reset();
activate(as_rx_alive_tx_ack());
f_outgoing_ns_unblock();
f_sleep(30.0);
setverdict(pass);
f_sleep(1.0);
f_clean_ns_codec();
}
testcase TC_sns_sgsn_config_success() runs on RAW_Test_CT {
f_init_vty();
f_init_ns_codec(mp_nsconfig);
f_outgoing_sns_size();
f_outgoing_sns_config();
f_incoming_sns_config();
setverdict(pass);
f_clean_ns_codec();
}
/* Ensure a SIZE after a success full configuration is handled */
testcase TC_sns_sgsn_size_after_success() runs on RAW_Test_CT {
f_init_vty();
f_init_ns_codec(mp_nsconfig);
f_outgoing_sns_size();
f_outgoing_sns_config();
f_incoming_sns_config();
NSCP[0].receive(t_NS_ALIVE);
f_outgoing_sns_size();
f_outgoing_sns_config();
f_incoming_sns_config();
setverdict(pass);
f_clean_ns_codec();
}
/* Ensure a SNS SIZE ACK is transmitted from the correct port */
testcase TC_sns_sgsn_size_correct_port() runs on RAW_Test_CT {
f_init_vty();
f_init_ns_codec(mp_nsconfig);
f_init_ns_codec(mp_nsconfig, 1);
f_outgoing_sns_size(max_nsvcs := 10);
f_outgoing_sns_config();
f_incoming_sns_config();
NSCP[0].receive(t_NS_ALIVE);
f_outgoing_sns_size(max_nsvcs := 10, idx := 1);
setverdict(pass);
f_clean_ns_codec();
}
testcase TC_sns_sgsn_add() runs on RAW_Test_CT {
g_handle_rx_alive := true;
f_init_vty();
f_init_ns_codec(mp_nsconfig);
f_init_ns_codec(mp_nsconfig, 1);
f_outgoing_sns_size(max_nsvcs := 4, num_ip := 4);
f_outgoing_sns_config();
f_incoming_sns_config();
activate(as_rx_alive_tx_ack());
f_vty_config2(NSVTY, {"ns", "nse " & int2str(g_nsconfig.nsei)}, "ip-sns-bind local2");
f_incoming_sns_add(idx_add := 1);
as_rx_alive_tx_ack(oneshot := true, idx := 1);
setverdict(pass);
f_clean_ns_codec();
}
testcase TC_sns_sgsn_del() runs on RAW_Test_CT {
g_handle_rx_alive := true;
f_init_vty();
f_init_ns_codec(mp_nsconfig);
f_init_ns_codec(mp_nsconfig, 1);
f_outgoing_sns_size(max_nsvcs := 4, num_ip := 4);
f_outgoing_sns_config();
f_incoming_sns_config();
activate(as_rx_alive_tx_ack());
f_vty_config2(NSVTY, {"ns", "nse " & int2str(g_nsconfig.nsei)}, "ip-sns-bind local2");
f_incoming_sns_add(idx_add := 1);
as_rx_alive_tx_ack(oneshot := true, idx := 1);
/* delete the endpoint */
f_vty_config2(NSVTY, {"ns", "nse " & int2str(g_nsconfig.nsei)}, "no ip-sns-bind local2");
f_incoming_sns_del(idx_del := 1);
setverdict(pass);
f_clean_ns_codec();
}
/* 1. do SNS configuration
* 2. add a bind
* 3. receive the SNS_ADD
* 4. before answering the SNS_ADD, change the weight via vty and remove the bind
*/
testcase TC_sns_sgsn_add_change_del() runs on RAW_Test_CT {
var PDU_NS rx;
var NSVCConfiguration nsvc_cfg;
g_handle_rx_alive := true;
f_init_vty();
f_init_ns_codec(mp_nsconfig);
f_init_ns_codec(mp_nsconfig, 1);
f_outgoing_sns_size(max_nsvcs := 4, num_ip := 4);
f_outgoing_sns_config();
f_incoming_sns_config();
activate(as_rx_alive_tx_ack());
f_vty_config2(NSVTY, {"ns", "nse " & int2str(g_nsconfig.nsei)}, "ip-sns-bind local2");
/* rx SNS ADD */
nsvc_cfg := g_nsconfig.nsvc[1];
if (nsvc_cfg.provider.ip.address_family == AF_INET) {
var template (omit) IP4_Elements v4_elem := { ts_SNS_IPv4(nsvc_cfg.provider.ip.remote_ip,
nsvc_cfg.provider.ip.remote_udp_port,
1, 1) };
rx := f_ns_exp(tr_SNS_ADD(g_nsconfig.nsei, ?, v4 := v4_elem), 0);
} else {
var template (omit) IP6_Elements v6_elem := { ts_SNS_IPv6(nsvc_cfg.provider.ip.remote_ip,
nsvc_cfg.provider.ip.remote_udp_port,
1, 1) };
rx := f_ns_exp(tr_SNS_ADD(g_nsconfig.nsei, ?, omit, v6_elem), 0);
}
/* delete the endpoint */
f_vty_config2(NSVTY, {"ns", "bind udp local2"}, "ip-sns signalling-weight 99 data-weight 99");
f_vty_config2(NSVTY, {"ns", "nse " & int2str(g_nsconfig.nsei)}, "no ip-sns-bind local2");
/* accept the SNS_ADD */
NSCP[0].send(ts_SNS_ACK(g_nsconfig.nsei, rx.pDU_SNS_Add.transactionID));
f_incoming_sns_chg_weight(idx_chg := 1);
f_incoming_sns_del(idx_del := 1, w_sig := 99, w_user := 99);
setverdict(pass);
f_clean_ns_codec();
}
/* 48.016 7.2 transmit a UNITDATA over an ALIVE connection
*
* TTCN -> NS: reset
* TTCN <- NS: reset ack
* TTCN -> NS: unblock
* TTCN <- NS: unblock ack
* TTCN -> NS: unitdata
* TTCN <- NS: unitdata (mirror)
*/
testcase TC_tx_unitdata() runs on RAW_Test_CT {
f_tx_unblock();
f_vty_config2(NSVTY, {}, "mirror-mode enable");
NSCP[0].send(ts_NS_UNITDATA(t_SduCtrlB, 42, '0011234242230101'O));
f_ns_exp(tr_NS_UNITDATA(t_SduCtrlB, 42, '0011234242230101'O));
f_vty_config2(NSVTY, {}, "mirror-mode disable");
f_sleep(1.0);
f_clean_ns_codec();
}
/* 48.016 7.2 ensure tx status (blocked) is correctly parsed
*
* TTCN -> NS: reset
* TTCN <- NS: reset ack
* TTCN -> NS: unblock
* TTCN <- NS: unblock ack
* TTCN -> NS: unitdata
* TTCN <- NS: unitdata (mirror)
* TTCN -> NS: status (blocked)
* TTCN -> NS: unitdata
* TTCN <- NS: status (blocked)
*/
testcase TC_mirror_unitdata_tx_status_blocked() runs on RAW_Test_CT {
f_tx_unblock();
f_vty_config2(NSVTY, {}, "mirror-mode enable");
NSCP[0].send(ts_NS_UNITDATA(t_SduCtrlB, 42, '0011234242230101'O));
var PDU_NS pdu := f_ns_exp(tr_NS_UNITDATA(t_SduCtrlB, 42, '0011234242230101'O));
NSCP[0].send(ts_NS_STATUS(NS_CAUSE_NSVC_BLOCKED, pdu));
NSCP[0].send(ts_NS_UNITDATA(t_SduCtrlB, 42, '0011234242230101'O));
f_ns_exp(tr_NS_STATUS(NS_CAUSE_NSVC_BLOCKED));
f_vty_config2(NSVTY, {}, "mirror-mode disable");
f_sleep(1.0);
f_clean_ns_codec();
}
/* 48.016 7.2 ensure tx status (blocked) is correctly parsed over a foreign NSVC
*
* 2x initialize NSVC (RESET/UNBLOCK)
* TTCN 0-> NS: block (nsvci 1)
* TTCN <-0 NS: block ack (nsvci 1)
* TTCN 1-> NS: unit data (nsvci 1)
* TTCN <-1 NS: status (blocked)
*/
testcase TC_tx_blocked_foreign_nsvc() runs on RAW_Test_CT {
f_init_vty();
f_vty_config2(NSVTY, {}, "mirror-mode enable");
f_init_ns_codec(mp_nsconfig, idx := 0);
f_init_ns_codec(mp_nsconfig, idx := 1);
/* do a NS Reset procedure */
f_outgoing_ns_reset(idx := 0);
f_outgoing_ns_reset(idx := 1);
/* send alive acks */
activate(as_rx_alive_tx_ack(idx := 0));
activate(as_rx_alive_tx_ack(idx := 1));
f_outgoing_ns_unblock(idx := 0);
f_outgoing_ns_unblock(idx := 1);
/* both NSVC are alive and unblocked */
NSCP[0].send(ts_NS_BLOCK(NS_CAUSE_TRANSIT_NETWORK_FAILURE, g_nsconfig.nsvc[1].nsvci));
f_ns_exp(tr_NS_BLOCK_ACK(g_nsconfig.nsvc[1].nsvci));
NSCP[1].send(ts_NS_UNITDATA(t_SduCtrlB, 42, '0011234242230101'O));
f_ns_exp(tr_NS_STATUS(NS_CAUSE_NSVC_BLOCKED), idx := 1);
setverdict(pass);
f_clean_ns_codec();
}
control {
if (mp_dialect == NS2_DIALECT_STATIC_RESETBLOCK or mp_dialect == NS2_DIALECT_IPACCESS) {
execute( TC_tx_reset() );
/* 48.016 7.2 Block procedure */
execute( TC_tx_block() );
execute( TC_tx_block_by_vty() );
execute( TC_tx_block_by_vty_reset() );
execute( TC_tx_block_unitdata_over_blocked() );
execute( TC_rx_block_unitdata_over_blocked() );
execute( TC_mirror_unitdata_tx_status_blocked() );
execute( TC_tx_blocked_foreign_nsvc() );
// execute( TC_block_other_nsvc() ); // reset, unblock, sleep(1), block over another nsvci
/* 48.016 7.2 Unblock procedure */
execute( TC_tx_unblock() );
execute( TC_tx_unblock_retries() );
// execute( TC_rx_unblock_tx_unblock() ); // wait for an rx unblock pdu, send an unblock pdu, expect unblock ack pdu
// execute( TC_unblockable() ); // block a NS-VCI via vty, try block procedure
/* 48.016 7.2.1 Block Abnormal Condition */
/* 48.016 7.2.1 Unblock Abnormal Condition */
/* 48.016 7.3.1 Abnormal Condition */
execute( TC_reset_wrong_nsei() );
execute( TC_reset_wrong_nsvci() );
execute( TC_reset_wrong_nsei_nsvci() );
execute( TC_reset_ack_wrong_nsei() );
execute( TC_reset_ack_wrong_nsvci() );
execute( TC_reset_ack_wrong_nsei_nsvci() );
execute( TC_reset_retries() );
execute( TC_reset_on_block_reset() );
execute( TC_ignore_reset_ack() );
/* 48.016 7.4 Test procedure on frame relay */
execute( TC_tx_reset_tx_alive() );
execute( TC_tx_reset_rx_alive() );
/* 48.016 7.4.1 Abnormal Condition */
if (mp_dialect == NS2_DIALECT_STATIC_RESETBLOCK) {
// execute( TC_alive_retries_multi() ); // check if alive retries works and block over an alive nsvc
execute( TC_alive_retries_single_reset() );
} else if (mp_dialect == NS2_DIALECT_IPACCESS) {
execute( TC_alive_retries_single_no_resp() );
}
execute( TC_no_reset_alive_ack() );
execute( TC_tx_unitdata() );
}
if (mp_dialect == NS2_DIALECT_SNS) {
if (mp_sns_role == SNS_ROLE_BSS) {
/* BSS test cases */
execute( TC_sns_bss_config_success() );
execute( TC_sns_bss_change_weight() );
execute( TC_sns_bss_change_weight_timeout() );
execute( TC_sns_bss_add() );
execute( TC_sns_bss_del() );
execute( TC_sns_bss_add_change_del() );
/* execute( TC_sns_bss_all_signalling_nsvcs_failed() ); */
execute( TC_sns_rx_size_force_unconf() );
execute( TC_sns_bss_remove_bind_fail_sns() );
}
if (mp_sns_role == SNS_ROLE_SGSN) {
execute( TC_sns_sgsn_config_success() );
execute( TC_sns_sgsn_add() );
execute( TC_sns_sgsn_del() );
execute( TC_sns_sgsn_add_change_del() );
execute( TC_sns_sgsn_size_correct_port() );
execute( TC_sns_sgsn_size_after_success() );
}
}
}
}