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