| module RAW_NS { |
| |
| /* Osmocom NS test suite for NS in TTCN-3 |
| * (C) 2018-2019 Harald Welte <laforge@gnumonks.org> |
| * All rights reserved. |
| * |
| * Released under the terms of GNU General Public License, Version 2 or |
| * (at your option) any later version. |
| * |
| * SPDX-License-Identifier: GPL-2.0-or-later |
| */ |
| |
| import from Misc_Helpers all; |
| import from General_Types all; |
| import from Osmocom_Types all; |
| import from Osmocom_Gb_Types all; |
| import from NS_Emulation all; |
| import from NS_Types all; |
| import from BSSGP_Types all; |
| import from NS_Emulation all; |
| import from Native_Functions all; |
| import from IPL4asp_Types all; |
| import from NS_Provider_IPL4 all; |
| #ifdef NS_EMULATION_FR |
| import from NS_Provider_FR all; |
| #endif |
| |
| public type component RAW_NS_CT { |
| /* UDP port towards the bottom (IUT) */ |
| port NS_PROVIDER_PT NSCP[4]; |
| var NS_Provider_IPL4_CT vc_NSP_IP[4]; |
| #ifdef NS_EMULATION_FR |
| var NS_Provider_FR_CT vc_NSP_FR[4]; |
| #endif |
| var NSConfiguration g_nsconfig; |
| timer g_T_guard; |
| } |
| |
| public altstep as_Tguard() runs on RAW_NS_CT { |
| [] g_T_guard.timeout { |
| setverdict(fail, "Timeout of T_guard"); |
| mtc.stop; |
| } |
| } |
| |
| function f_init_ns_codec(NSConfiguration ns_config, integer idx := 0, float guard_secs := 60.0, charstring id := testcasename()) runs on RAW_NS_CT { |
| var Result res; |
| |
| if (not g_T_guard.running) { |
| g_T_guard.start(guard_secs); |
| activate(as_Tguard()); |
| } |
| |
| if (not isbound(g_nsconfig)) { |
| g_nsconfig := ns_config; |
| } |
| |
| if (ischosen(ns_config.nsvc[idx].provider.ip)) { |
| /* Connect the UDP socket */ |
| vc_NSP_IP[idx] := NS_Provider_IPL4_CT.create(id & "-provIP"); |
| connect(self:NSCP[idx], vc_NSP_IP[idx]:NSE); |
| vc_NSP_IP[idx].start(NS_Provider_IPL4.main(ns_config.nsvc[idx], ns_config, id)); |
| #ifdef NS_EMULATION_FR |
| } else if (ischosen(ns_config.nsvc[idx].provider.fr)) { |
| vc_NSP_FR[idx] := NS_Provider_FR_CT.create(id & "-provFR"); |
| connect(self:NSCP[idx], vc_NSP_FR[idx]:NSE); |
| vc_NSP_FR[idx].start(NS_Provider_FR.main(ns_config.nsvc[idx], ns_config, id)); |
| #endif |
| } else { |
| Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "Unsupported NS provider"); |
| } |
| |
| NSCP[idx].receive(NS_Provider_Evt:{link_status:=NS_PROV_LINK_STATUS_UP}); |
| } |
| |
| function f_clean_ns_codec() runs on RAW_NS_CT { |
| for (var integer i := 0; i < lengthof(vc_NSP_IP); i := i + 1) { |
| vc_NSP_IP[i].stop; |
| } |
| #ifdef NS_EMULATION_FR |
| for (var integer i := 0; i < lengthof(vc_NSP_FR); i := i + 1) { |
| vc_NSP_FR[i].stop; |
| } |
| #endif NS_EMULATION_FR |
| } |
| |
| public altstep ax_rx_fail_on_any_ns(integer idx := 0) runs on RAW_NS_CT { |
| var PDU_NS nrf; |
| [] NSCP[idx].receive(PDU_NS: ?) -> value nrf { |
| setverdict(fail, "Received unexpected NS: ", nrf); |
| mtc.stop; |
| } |
| } |
| |
| function f_ns_exp(template PDU_NS exp_rx, integer idx := 0) runs on RAW_NS_CT return PDU_NS { |
| var PDU_NS nrf; |
| log("f_ns_exp() expecting ", exp_rx); |
| /* last activated altstep has the lowest priority */ |
| var default d := activate(ax_rx_fail_on_any_ns()); |
| alt { |
| [] NSCP[idx].receive(PDU_NS: exp_rx) -> value nrf { } |
| } |
| deactivate(d); |
| return nrf; |
| } |
| |
| /* perform outbound NS-ALIVE procedure */ |
| function f_outgoing_ns_alive(integer idx := 0) runs on RAW_NS_CT { |
| NSCP[idx].send(t_NS_ALIVE); |
| alt { |
| [] NSCP[idx].receive(t_NS_ALIVE_ACK); |
| [] NSCP[idx].receive { repeat; } |
| } |
| } |
| |
| /* perform outbound NS-ALIVE procedure */ |
| function f_outgoing_ns_alive_no_ack(integer idx := 0, float tout := 10.0) runs on RAW_NS_CT { |
| timer T := tout; |
| NSCP[idx].send(t_NS_ALIVE); |
| T.start; |
| alt { |
| [] NSCP[idx].receive(t_NS_ALIVE_ACK) { |
| setverdict(fail, "Received unexpected NS-ALIVE ACK"); |
| } |
| [] NSCP[idx].receive { repeat; } |
| [] T.timeout { |
| setverdict(pass); |
| } |
| } |
| } |
| |
| function f_outgoing_ns_reset(integer idx := 0, float tout := 10.0) runs on RAW_NS_CT { |
| timer T := tout; |
| var template PDU_NS reset := ts_NS_RESET(NS_CAUSE_EQUIPMENT_FAILURE, g_nsconfig.nsvc[idx].nsvci, g_nsconfig.nsei) |
| NSCP[idx].send(reset); |
| T.start; |
| alt { |
| [] NSCP[idx].receive(ts_NS_RESET_ACK(g_nsconfig.nsvc[idx].nsvci, g_nsconfig.nsei)) { |
| setverdict(pass); |
| } |
| [] NSCP[idx].receive { repeat; } |
| [] T.timeout { |
| setverdict(fail, "Failed to receive a RESET ACK"); |
| } |
| } |
| } |
| |
| /* perform outbound NS-BLOCK procedure */ |
| function f_outgoing_ns_block(NsCause cause, integer idx := 0) runs on RAW_NS_CT { |
| NSCP[idx].send(ts_NS_BLOCK(cause, g_nsconfig.nsvc[idx].nsvci)); |
| alt { |
| [] NSCP[idx].receive(tr_NS_BLOCK_ACK(g_nsconfig.nsvc[idx].nsvci)); |
| [] NSCP[idx].receive { repeat; } |
| } |
| } |
| |
| /* perform outbound NS-UNBLOCK procedure */ |
| function f_outgoing_ns_unblock(integer idx := 0) runs on RAW_NS_CT { |
| NSCP[idx].send(t_NS_UNBLOCK); |
| alt { |
| [] NSCP[idx].receive(t_NS_UNBLOCK_ACK); |
| [] NSCP[idx].receive { repeat; } |
| } |
| } |
| |
| /* receive NS-ALIVE and ACK it */ |
| altstep as_rx_alive_tx_ack(boolean oneshot := false, integer idx := 0) runs on RAW_NS_CT { |
| [] NSCP[idx].receive(t_NS_ALIVE) { |
| NSCP[idx].send(t_NS_ALIVE_ACK); |
| if (not oneshot) { repeat; } |
| } |
| } |
| |
| /* Transmit BSSGP RESET for given BVCI and expect ACK */ |
| function f_tx_bvc_reset_rx_ack(BssgpBvci bvci, template (omit) BssgpCellId tx_cell_id, template BssgpCellId rx_cell_id, |
| integer idx := 0, boolean exp_ack := true) |
| runs on RAW_NS_CT { |
| var PDU_BSSGP bssgp_tx := valueof(ts_BVC_RESET(BSSGP_CAUSE_NET_SV_CAP_MOD_GT_ZERO_KBPS, bvci, |
| tx_cell_id)); |
| timer T := 5.0; |
| NSCP[idx].send(ts_NS_UNITDATA(t_SduCtrlB, 0, enc_PDU_BSSGP(bssgp_tx))); |
| T.start; |
| alt { |
| [exp_ack] NSCP[idx].receive(tr_NS_UNITDATA(t_SduCtrlB, 0, |
| decmatch tr_BVC_RESET_ACK(bvci, rx_cell_id))) { |
| setverdict(pass); |
| } |
| [exp_ack] T.timeout { |
| setverdict(fail, "No response to BVC-RESET"); |
| } |
| [not exp_ack] T.timeout { |
| setverdict(pass); |
| } |
| [] NSCP[idx].receive { repeat; } |
| } |
| } |
| |
| /* Receive a BSSGP RESET for given BVCI and ACK it */ |
| altstep as_rx_bvc_reset_tx_ack(BssgpBvci bvci, template BssgpCellId rx_cell_id, template (omit) BssgpCellId tx_cell_id, |
| boolean oneshot := false, integer idx := 0) runs on RAW_NS_CT { |
| var PDU_NS ns_rf; |
| [] NSCP[idx].receive(tr_NS_UNITDATA(t_SduCtrlB, 0, |
| decmatch tr_BVC_RESET(?, bvci, rx_cell_id))) |
| -> value ns_rf { |
| var PDU_BSSGP bssgp_rx := dec_PDU_BSSGP(ns_rf.pDU_NS_Unitdata.nS_SDU); |
| var PDU_BSSGP bssgp_tx := valueof(ts_BVC_RESET_ACK(bvci, tx_cell_id)); |
| NSCP[idx].send(ts_NS_UNITDATA(t_SduCtrlB, 0, enc_PDU_BSSGP(bssgp_tx))); |
| if (not oneshot) { repeat; } |
| } |
| } |
| |
| |
| /* Receive a BSSGP UNBLOCK for given BVCI and ACK it */ |
| altstep as_rx_bvc_unblock_tx_ack(BssgpBvci bvci, boolean oneshot := false, integer idx := 0) runs on RAW_NS_CT { |
| var PDU_NS ns_rf; |
| [] NSCP[idx].receive(tr_NS_UNITDATA(t_SduCtrlB, 0, decmatch t_BVC_UNBLOCK(bvci))) -> value ns_rf { |
| var PDU_BSSGP bssgp_rx := dec_PDU_BSSGP(ns_rf.pDU_NS_Unitdata.nS_SDU); |
| var PDU_BSSGP bssgp_tx := valueof(t_BVC_UNBLOCK_ACK(bvci)); |
| NSCP[idx].send(ts_NS_UNITDATA(t_SduCtrlB, 0, enc_PDU_BSSGP(bssgp_tx))); |
| if (not oneshot) { repeat; } |
| } |
| } |
| |
| /* Receive a BSSGP FLOW-CONTROL-BVC and ACK it */ |
| altstep as_rx_bvc_fc_tx_ack(BssgpBvci bvci, boolean oneshot := false, integer idx := 0) runs on RAW_NS_CT { |
| var PDU_NS ns_rf; |
| [] NSCP[idx].receive(tr_NS_UNITDATA(t_SduCtrlB, bvci, |
| decmatch tr_BVC_FC_BVC)) |
| -> value ns_rf { |
| var PDU_BSSGP bssgp_rx := dec_PDU_BSSGP(ns_rf.pDU_NS_Unitdata.nS_SDU); |
| var OCT1 tag := bssgp_rx.pDU_BSSGP_FLOW_CONTROL_BVC.tag.unstructured_Value; |
| var PDU_BSSGP bssgp_tx := valueof(t_BVC_FC_BVC_ACK(tag)); |
| NSCP[idx].send(ts_NS_UNITDATA(t_SduCtrlB, bvci, enc_PDU_BSSGP(bssgp_tx))); |
| if (not oneshot) { repeat; } |
| } |
| } |
| |
| /********************************************************************************** |
| * Classic Gb/IP bring-up test cases using NS-{RESET,BLOCK,UNBLOCK} and no IP-SNS * |
| **********************************************************************************/ |
| |
| /* Receive a NS-RESET and ACK it */ |
| public altstep as_rx_ns_reset_ack(boolean oneshot := false, integer idx := 0) runs on RAW_NS_CT { |
| var PDU_NS ns_rf; |
| [] NSCP[idx].receive(tr_NS_RESET(NS_CAUSE_OM_INTERVENTION, g_nsconfig.nsvc[idx].nsvci, |
| g_nsconfig.nsei)) -> value ns_rf { |
| NSCP[idx].send(ts_NS_RESET_ACK(g_nsconfig.nsvc[idx].nsvci, g_nsconfig.nsei)); |
| if (not oneshot) { repeat; } |
| } |
| } |
| /* Receive a NS-UNBLOCK and ACK it */ |
| public altstep as_rx_ns_unblock_ack(boolean oneshot := false, integer idx := 0) runs on RAW_NS_CT { |
| var PDU_NS ns_rf; |
| [] NSCP[idx].receive(t_NS_UNBLOCK) -> value ns_rf { |
| NSCP[idx].send(t_NS_UNBLOCK_ACK); |
| if (not oneshot) { repeat; } |
| } |
| } |
| |
| /* Receive a NS-BLOCK and ACK it */ |
| public altstep as_rx_ns_block_ack(boolean oneshot := false, integer idx := 0, template NsCause cause := *, template Nsvci nsvci := *) runs on RAW_NS_CT { |
| var PDU_NS ns_rf; |
| [] NSCP[idx].receive(tr_NS_BLOCK(cause, nsvci)) -> value ns_rf { |
| NSCP[idx].send(ts_NS_BLOCK_ACK(oct2int(ns_rf.pDU_NS_Block.nS_VCI.nS_VCI))); |
| if (not oneshot) { repeat; } |
| } |
| } |
| |
| } |