Osmocom test suites in TTCN-3 (Eclipse Titan) https://osmocom.org/projects/core-testing-infra
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osmo-ttcn3-hacks/sccp/SCCP_Tests_RAW.ttcn

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/* (C) 2019 by Harald Welte <laforge@gnumonks.org>
* All Rights Reserved
*
* The idea is that these tests are executed against sccp_demo_user from
* libosmo-sccp.git in server mode.
*
* 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
*/
module SCCP_Tests_RAW {
import from General_Types all;
import from Osmocom_Types all;
import from M3UA_Emulation all;
import from SCCP_Types all;
import from SCCPasp_Types all;
import from SCCP_Templates all;
import from SCCP_Emulation all;
import from SCCP_CodecPort all;
import from TELNETasp_PortType all;
import from Osmocom_VTY_Functions all;
import from SCCP_Tests all;
type component SCCP_Test_RAW_CT {
/* VTY to sccp_demo_user (not used yet) */
port TELNETasp_PT SCCP_DEMO_USER_VTY;
/* SCCP raw port runs on top of M3UA Emulation.
* "System Under Test" is libosmo-sccp's sccp_demo_user example program. */
var M3UA_CT vc_M3UA;
port SCCP_CODEC_PT MTP3;
var MSC_SCCP_MTP3_parameters g_param;
var OCT3 g_own_lref := '000001'O
/*Configure T(tias) over VTY, seconds */
var integer g_demo_sccp_timer_ias := 7 * 60;
/*Configure T(tiar) over VTY, seconds */
var integer g_demo_sccp_timer_iar := 15 * 60;
}
type record of charstring Commands;
private function f_cs7_inst_0_cfg(TELNETasp_PT pt, Commands cmds := {})
{
f_vty_enter_cfg_cs7_inst(pt, 0);
for (var integer i := 0; i < sizeof(cmds); i := i+1) {
f_vty_transceive(pt, cmds[i]);
}
f_vty_transceive(pt, "end");
}
function f_init_vty() runs on SCCP_Test_RAW_CT {
if (SCCP_DEMO_USER_VTY.checkstate("Mapped")) {
/* skip initialization if already executed once */
return;
}
map(self:SCCP_DEMO_USER_VTY, system:SCCP_DEMO_USER_VTY);
f_vty_set_prompts(SCCP_DEMO_USER_VTY);
f_vty_transceive(SCCP_DEMO_USER_VTY, "enable");
f_cs7_inst_0_cfg(SCCP_DEMO_USER_VTY, {"sccp-timer ias " & int2str(g_demo_sccp_timer_ias),
"sccp-timer iar " & int2str(g_demo_sccp_timer_iar)});
}
private function f_init_raw(SCCP_Configuration cfg) runs on SCCP_Test_RAW_CT {
g_param := {
sio := {
ni := substr(oct2bit(cfg.sio),0,2),
prio := substr(oct2bit(cfg.sio),2,2),
si := substr(oct2bit(cfg.sio),4,4)
},
opc := cfg.own_pc,
dpc := cfg.peer_pc,
sls := 0,
sccp_serviceType := cfg.sccp_service_type,
ssn := cfg.own_ssn
};
f_init_vty();
/* Create and connect test components */
vc_M3UA := M3UA_CT.create;
connect(self:MTP3, vc_M3UA:MTP3_SP_PORT);
map(vc_M3UA:SCTP_PORT, system:sctp);
vc_M3UA.start(f_M3UA_Emulation(cfg.sctp_addr));
}
private function f_cleanup() runs on SCCP_Test_RAW_CT {
all component.stop;
unmap(vc_M3UA:SCTP_PORT, system:sctp);
disconnect(vc_M3UA:MTP3_SP_PORT, self:MTP3);
self.stop
}
private function f_send_sccp(template PDU_SCCP sccp) runs on SCCP_Test_RAW_CT {
var SCCP_MTP3_TRANSFERreq tx := {
sio := g_param.sio,
opc := g_param.opc,
dpc := g_param.dpc,
sls := g_param.sls,
data := valueof(sccp)
};
MTP3.send(tx);
}
private function tr_SCCP_MTP3_TRANSFERind(template PDU_SCCP sccp)
runs on SCCP_Test_RAW_CT return template SCCP_MTP3_TRANSFERind {
var template SCCP_MTP3_TRANSFERind exp := {
sio := g_param.sio,
opc := g_param.dpc,
dpc := g_param.opc,
sls := g_param.sls,
data := sccp
};
return exp;
}
private function f_exp_sccp(template PDU_SCCP sccp)
runs on SCCP_Test_RAW_CT return SCCP_MTP3_TRANSFERind {
var template SCCP_MTP3_TRANSFERind exp := tr_SCCP_MTP3_TRANSFERind(sccp);
var SCCP_MTP3_TRANSFERind rx;
timer T := 10.0;
T.start;
alt {
[] MTP3.receive(exp) -> value rx {
return rx;
}
[] MTP3.receive {
setverdict(fail, "Unexpected MTP/SCCP received");
self.stop
}
[] T.timeout {
setverdict(fail, "Timeout waiting for ", exp);
self.stop
}
}
return rx;
}
private function f_establish_conn(SCCP_PAR_Address calling, SCCP_PAR_Address called)
runs on SCCP_Test_RAW_CT return OCT3 {
var SCCP_MTP3_TRANSFERind mtp3_rx;
f_send_sccp(ts_SCCP_CR(g_own_lref, calling, called));
mtp3_rx := f_exp_sccp(tr_SCCP_CC(?, g_own_lref));
return mtp3_rx.data.connconfirm.sourceLocRef;
}
private function f_tx_udt_exp(SCCP_PAR_Address calling, SCCP_PAR_Address called, octetstring data) runs on SCCP_Test_RAW_CT {
f_send_sccp(ts_SCCP_UDT(calling, called, data));
f_exp_sccp(tr_SCCP_UDT(called, calling, data));
}
/* Verify sccp_demo_user answers a CR with a CC for PC and SSN set up to echo back */
testcase TC_cr_cc() runs on SCCP_Test_RAW_CT {
var SCCP_PAR_Address calling, called;
f_init_raw(mp_sccp_cfg[0]);
f_sleep(1.0);
called := valueof(ts_SccpAddr_PC_SSN(mp_sccp_cfg[0].peer_pc, mp_sccp_cfg[0].peer_ssn,
mp_sccp_cfg[0].sio, mp_sccp_cfg[0].sccp_service_type));
calling := valueof(ts_SccpAddr_PC_SSN(mp_sccp_cfg[0].own_pc, mp_sccp_cfg[0].own_ssn,
mp_sccp_cfg[0].sio, mp_sccp_cfg[0].sccp_service_type));
f_establish_conn(calling, called);
setverdict(pass);
}
/* Verify sccp_demo_user inactivty timers are not armed upon dealing with
/* connectionless data-unit messages. Since no connection exists. */
testcase TC_udt_without_cr_cc() runs on SCCP_Test_RAW_CT {
var SCCP_PAR_Address calling, called;
var SCCP_MTP3_TRANSFERind rx;
var octetstring data := f_rnd_octstring(f_rnd_int(100));
/* Keep recommended ratio of T(iar) >= T(ias)*2, but anyway no IT
should be received in this case. */
g_demo_sccp_timer_ias := 1;
g_demo_sccp_timer_iar := 3;
f_init_raw(mp_sccp_cfg[0]);
f_sleep(1.0);
called := valueof(ts_SccpAddr_PC_SSN(mp_sccp_cfg[0].peer_pc, mp_sccp_cfg[0].peer_ssn,
mp_sccp_cfg[0].sio, mp_sccp_cfg[0].sccp_service_type));
calling := valueof(ts_SccpAddr_PC_SSN(mp_sccp_cfg[0].own_pc, mp_sccp_cfg[0].own_ssn,
mp_sccp_cfg[0].sio, mp_sccp_cfg[0].sccp_service_type));
f_tx_udt_exp(calling, called, data);
/* Make sure no SCCP message is received at all, since no connection is active. */
timer T := int2float(g_demo_sccp_timer_iar + 1);
T.start;
alt {
[] MTP3.receive {
setverdict(fail, "Unexpected MTP/SCCP received");
self.stop;
}
[] T.timeout {}
}
setverdict(pass);
}
/* Verify T(iar) triggers and releases the channel */
testcase TC_tiar_timeout() runs on SCCP_Test_RAW_CT {
var SCCP_PAR_Address calling, called;
var OCT3 remote_lref;
var octetstring data := f_rnd_octstring(f_rnd_int(100));
/* Set T(iar) in sccp_demo_user low enough that it will trigger before other side
has time to keep alive with a T(ias). Keep recommended ratio of
T(iar) >= T(ias)*2 */
g_demo_sccp_timer_ias := 2;
g_demo_sccp_timer_iar := 5;
f_init_raw(mp_sccp_cfg[0]);
f_sleep(1.0);
called := valueof(ts_SccpAddr_PC_SSN(mp_sccp_cfg[0].peer_pc, mp_sccp_cfg[0].peer_ssn,
mp_sccp_cfg[0].sio, mp_sccp_cfg[0].sccp_service_type));
calling := valueof(ts_SccpAddr_PC_SSN(mp_sccp_cfg[0].own_pc, mp_sccp_cfg[0].own_ssn,
mp_sccp_cfg[0].sio, mp_sccp_cfg[0].sccp_service_type));
remote_lref := f_establish_conn(calling, called);
f_tx_udt_exp(calling, called, data);
log("Waiting for first IT");
f_exp_sccp(tr_SCCP_IT(remote_lref, g_own_lref));
log("Waiting for second IT");
f_exp_sccp(tr_SCCP_IT(remote_lref, g_own_lref));
log("Waiting for RLSD");
f_exp_sccp(tr_SCCP_RLSD(remote_lref, g_own_lref, hex2int('0D'H))); /* Cause: Expiration of Rx Inactivity Timer */
f_send_sccp(ts_SCCP_RLC(g_own_lref, remote_lref));
setverdict(pass);
}
/* Verify T(iar) triggers and releases the channel */
testcase TC_it_avoids_tiar() runs on SCCP_Test_RAW_CT {
var SCCP_PAR_Address calling, called;
var OCT3 remote_lref;
var boolean it_received := false;
g_demo_sccp_timer_ias := 1;
g_demo_sccp_timer_iar := 3;
f_init_raw(mp_sccp_cfg[0]);
f_sleep(1.0);
called := valueof(ts_SccpAddr_PC_SSN(mp_sccp_cfg[0].peer_pc, mp_sccp_cfg[0].peer_ssn,
mp_sccp_cfg[0].sio, mp_sccp_cfg[0].sccp_service_type));
calling := valueof(ts_SccpAddr_PC_SSN(mp_sccp_cfg[0].own_pc, mp_sccp_cfg[0].own_ssn,
mp_sccp_cfg[0].sio, mp_sccp_cfg[0].sccp_service_type));
remote_lref := f_establish_conn(calling, called);
timer T_total := 7.0; /* Higher than g_demo_sccp_timer_iar */
timer T_tias := 1.0; /* Lower than g_demo_sccp_timer_iar */
T_total.start;
T_tias.start;
alt {
[] MTP3.receive(tr_SCCP_MTP3_TRANSFERind(tr_SCCP_IT(remote_lref, g_own_lref))) {
it_received := true;
repeat;
}
[] MTP3.receive(tr_SCCP_MTP3_TRANSFERind(tr_SCCP_RLSD(remote_lref, g_own_lref, hex2int('0D'H)))) {
setverdict(fail, "Unexpected SCCP RLSD received");
self.stop;
}
[] MTP3.receive {
setverdict(fail, "Unexpected MTP/SCCP received");
self.stop;
}
[] T_tias.timeout {
f_send_sccp(ts_SCCP_IT(g_own_lref, remote_lref));
T_tias.start;
repeat;
}
[] T_total.timeout {
/* We kept the connection alive only with IT messages for a while, cool! */
T_tias.stop;
setverdict(pass);
}
}
if (not it_received) {
setverdict(fail, "Didn't receive any IT (Tias) from peer");
}
/* After we stop sending IT, we should be receiving an RLSD triggered from T(iar) */
log("Waiting for RLSD");
alt {
[] MTP3.receive(tr_SCCP_MTP3_TRANSFERind(tr_SCCP_IT(remote_lref, g_own_lref))) {
repeat;
}
[] MTP3.receive(tr_SCCP_MTP3_TRANSFERind(tr_SCCP_RLSD(remote_lref, g_own_lref, hex2int('0D'H)))) {
f_send_sccp(ts_SCCP_RLC(g_own_lref, remote_lref));
setverdict(pass);
}
[] MTP3.receive {
setverdict(fail, "Unexpected MTP/SCCP received");
self.stop;
}
}
}
private function f_tx_xudt_exp(SCCP_PAR_Address calling, SCCP_PAR_Address called, octetstring data) runs on SCCP_Test_RAW_CT {
var template PDU_SCCP exp_rx;
f_send_sccp(ts_SCCP_XUDT(calling, called, data));
exp_rx := (tr_SCCP_UDT(called, calling, data), tr_SCCP_XUDT(called, calling, data));
f_exp_sccp(exp_rx);
}
/* Test if the IUT SCCP code processes an XUDT [treat it like UDT] and answers back. */
testcase TC_process_rx_xudt() runs on SCCP_Test_RAW_CT {
var SCCP_PAR_Address calling, called;
var octetstring data := f_rnd_octstring(f_rnd_int(100));
f_init_raw(mp_sccp_cfg[0]);
f_sleep(1.0);
called := valueof(ts_SccpAddr_PC_SSN(mp_sccp_cfg[0].peer_pc, mp_sccp_cfg[0].peer_ssn,
mp_sccp_cfg[0].sio, mp_sccp_cfg[0].sccp_service_type));
calling := valueof(ts_SccpAddr_PC_SSN(mp_sccp_cfg[0].own_pc, mp_sccp_cfg[0].own_ssn,
mp_sccp_cfg[0].sio, mp_sccp_cfg[0].sccp_service_type));
/* Make sure an XUDT is echoed back just like an UDT */
f_tx_xudt_exp(calling, called, data);
setverdict(pass);
}
function f_scmg_xceive(SCCP_PAR_Address calling, SCCP_PAR_Address called,
template (value) PDU_SCMG_message tx,
template (omit) PDU_SCMG_message rx_exp,
boolean accept_other_called_resp := false) runs on SCCP_Test_RAW_CT
{
var boolean exp_something := true;
timer T := 5.0;
if (istemplatekind(rx_exp, "omit")) {
exp_something := false;
}
MTP3.clear;
f_send_sccp(ts_SCCP_UDT(calling, called, enc_PDU_SCMG_message(valueof(tx))));
T.start;
alt {
[exp_something] MTP3.receive(tr_SCCP_MTP3_TRANSFERind(tr_SCCP_UDT(called, calling, decmatch rx_exp))) {
setverdict(pass);
}
[exp_something and accept_other_called_resp] MTP3.receive(tr_SCCP_MTP3_TRANSFERind(tr_SCCP_UDT(called, ?, decmatch rx_exp))) {
setverdict(pass);
}
[] MTP3.receive(tr_SCCP_MTP3_TRANSFERind(tr_SCCP_UDT(called, calling, ?))) {
setverdict(fail, "Received unexpected SCCP waiting for ", rx_exp);
}
[] MTP3.receive {
setverdict(fail, "Received unexpected waiting for ", rx_exp);
}
[exp_something] T.timeout {
setverdict(fail, "Timeout waiting for ", rx_exp);
}
[not exp_something] T.timeout {
setverdict(pass);
}
}
}
/* Test is SST(SSN=1) returns SSA */
testcase TC_scmg_sst_ssn1() runs on SCCP_Test_RAW_CT {
var SCCP_PAR_Address calling, called;
var template (value) PDU_SCMG_message tx;
var template (present) PDU_SCMG_message rx_exp;
f_init_raw(mp_sccp_cfg[0]);
f_sleep(1.0);
called := valueof(ts_SccpAddr_PC_SSN(mp_sccp_cfg[0].peer_pc, 1,
mp_sccp_cfg[0].sio, mp_sccp_cfg[0].sccp_service_type));
calling := valueof(ts_SccpAddr_PC_SSN(mp_sccp_cfg[0].own_pc, 1,
mp_sccp_cfg[0].sio, mp_sccp_cfg[0].sccp_service_type));
tx := ts_SCMG_SST(1, mp_sccp_cfg[0].peer_pc);
rx_exp := ts_SCMG_SSA(1, mp_sccp_cfg[0].peer_pc);
f_scmg_xceive(calling, called, tx, rx_exp);
}
/* Test is SST(SSN=valid) returns SSA */
testcase TC_scmg_sst_ssn_valid() runs on SCCP_Test_RAW_CT {
var SCCP_PAR_Address calling, called;
var template (value) PDU_SCMG_message tx;
var template (present) PDU_SCMG_message rx_exp;
f_init_raw(mp_sccp_cfg[0]);
f_sleep(1.0);
called := valueof(ts_SccpAddr_PC_SSN(mp_sccp_cfg[0].peer_pc, 1,
mp_sccp_cfg[0].sio, mp_sccp_cfg[0].sccp_service_type));
calling := valueof(ts_SccpAddr_PC_SSN(mp_sccp_cfg[0].own_pc, 1,
mp_sccp_cfg[0].sio, mp_sccp_cfg[0].sccp_service_type));
tx := ts_SCMG_SST(mp_sccp_cfg[0].peer_ssn, mp_sccp_cfg[0].peer_pc);
rx_exp := ts_SCMG_SSA(mp_sccp_cfg[0].peer_ssn, mp_sccp_cfg[0].peer_pc);
f_scmg_xceive(calling, called, tx, rx_exp);
}
/* Test is SST(SSN=invalid) returns nothing */
testcase TC_scmg_sst_ssn_invalid() runs on SCCP_Test_RAW_CT {
var SCCP_PAR_Address calling, called;
var template (value) PDU_SCMG_message tx;
var template (omit) PDU_SCMG_message rx_exp;
f_init_raw(mp_sccp_cfg[0]);
f_sleep(1.0);
called := valueof(ts_SccpAddr_PC_SSN(mp_sccp_cfg[0].peer_pc, 1,
mp_sccp_cfg[0].sio, mp_sccp_cfg[0].sccp_service_type));
calling := valueof(ts_SccpAddr_PC_SSN(mp_sccp_cfg[0].own_pc, 1,
mp_sccp_cfg[0].sio, mp_sccp_cfg[0].sccp_service_type));
tx := ts_SCMG_SST(123, mp_sccp_cfg[0].peer_pc);
rx_exp := omit;
f_scmg_xceive(calling, called, tx, rx_exp);
}
/* Test CallingParty(only SSN) solicits response (OS#5146) */
testcase TC_callingparty_ssn_only() runs on SCCP_Test_RAW_CT {
var SCCP_PAR_Address calling, called;
var template (value) PDU_SCMG_message tx;
var template (present) PDU_SCMG_message rx_exp;
f_init_raw(mp_sccp_cfg[0]);
f_sleep(1.0);
called := valueof(ts_SccpAddr_SSN(1));
calling := valueof(ts_SccpAddr_SSN(1));
tx := ts_SCMG_SST(1, mp_sccp_cfg[0].peer_pc);
rx_exp := ts_SCMG_SSA(1, mp_sccp_cfg[0].peer_pc);
f_scmg_xceive(calling, called, tx, rx_exp, accept_other_called_resp:=true);
}
control {
execute( TC_cr_cc() );
execute( TC_udt_without_cr_cc() );
execute( TC_tiar_timeout() );
execute( TC_it_avoids_tiar() );
execute( TC_process_rx_xudt() );
execute( TC_scmg_sst_ssn1() );
execute( TC_scmg_sst_ssn_valid() );
execute( TC_scmg_sst_ssn_invalid() );
execute( TC_callingparty_ssn_only() );
}
}