| module Test { |
| |
| import from General_Types all; |
| import from Osmocom_Types all; |
| import from GSM_Types all; |
| import from GSM_RR_Types all; |
| import from Osmocom_Gb_Types all; |
| import from BSSGP_Types all; |
| import from BSSGP_Emulation all; |
| import from NS_Types all; |
| import from NS_Emulation all; |
| import from LLC_Types all; |
| import from LLC_Templates all; |
| import from RLCMAC_Types all; |
| import from RLCMAC_CSN1_Types all; |
| import from LAPDm_RAW_PT all; |
| |
| modulepar { |
| BssgpConfig mp_gb_cfg := { |
| nsei := 96, |
| bvci := 196, |
| cell_id := { |
| ra_id := { |
| lai := { |
| mcc_mnc := '26242F'H, lac := 13135 |
| }, |
| rac := 0 |
| }, |
| cell_id := 20960 |
| }, |
| sgsn_role := true |
| }; |
| } |
| |
| type record MmContext { |
| octetstring imsi optional, |
| GprsTlli tlli, |
| uint9_t n_u |
| }; |
| |
| type component dummy_CT { |
| var lapdm_CT lapdm_component; |
| port LAPDm_PT L1; |
| |
| port BSSGP_PT BSSGP; |
| var NS_CT ns_component; |
| var BSSGP_CT bssgp_component; |
| |
| var MmContext g_mmctx := { |
| tlli := 0, |
| n_u := 0 |
| }; |
| |
| var boolean g_initialized := false; |
| } |
| |
| function f_init() runs on dummy_CT { |
| if (g_initialized == true) { |
| return; |
| } |
| g_initialized := true; |
| /* create a new NS component */ |
| ns_component := NS_CT.create; |
| bssgp_component := BSSGP_CT.create; |
| /* connect our BSSGP port to the BSSGP Emulation */ |
| connect(self:BSSGP, bssgp_component:BSSGP_SP); |
| /* connect lower-end of BSSGP with BSSGP_CODEC_PORT (maps to NS_PT*/ |
| connect(bssgp_component:BSCP, ns_component:NS_SP); |
| /* connect lower-end of NS emulation to NS_CODEC_PORT (on top of IPl4) */ |
| map(ns_component:NSCP, system:NS_CODEC_PORT); |
| ns_component.start(NSStart()); |
| bssgp_component.start(BssgpStart(mp_gb_cfg)); |
| |
| lapdm_component := lapdm_CT.create; |
| connect(self:L1, lapdm_component:LAPDM_SP); |
| map(lapdm_component:L1CTL, system:L1CTL); |
| lapdm_component.start(LAPDmStart()); |
| } |
| |
| function f_bssgp_dec_and_log(in octetstring inp) { |
| log("BSSGP Input: ", inp); |
| var PDU_BSSGP dec := dec_PDU_BSSGP(inp); |
| log("BSSGP Decoded: ", dec); |
| } |
| |
| testcase TC_selftest_bssgp() runs on dummy_CT { |
| const octetstring c_bvc_reset_pcu := '2204820000078108088832f44000c80051e0'O; |
| const octetstring c_bvc_reset_q := '2204820000078100'O; |
| const octetstring c_status_pcu := '4107810515882204820000078103'O; |
| const octetstring c_reset_ack_q := '2304820000'O; |
| const octetstring c_reset_ack_pcu := '23048200c4'O; |
| const octetstring c_unblock_pcu := '24048200c4'O; |
| const octetstring c_unblock_ack_q := '25048200c4'O; |
| const octetstring c_fc_bvc_pcu := '261e8101058200fa038200c8018200fa1c8200c806820000'O; |
| const octetstring c_fc_bvc_ack_q := '271e8101'O; |
| const octetstring c_gmm_mo_att_req := '01bb146ddd000004088832f44000c80051e000800e003b01c001080103e5e000110a0005f4fb146ddd32f44000c8001d1b53432b37159ef9090070000dd9c6321200e00019b32c642401c0002017057bf0ec'O; |
| const octetstring c_gmm_mt_ac_req := '00bb146ddd0050001682ffff0a8204030e9c41c001081200102198c72477ea104895e8b959acc58b108182f4d045'O; |
| const octetstring c_gmm_mo_ac_resp := '01bb146ddd000004088832f44000c80051e000800e000e01c00508130122fa361f5fdd623d'O; |
| const octetstring c_gmm_mt_att_acc := '00bb146ddd0050001682ffff0a8204030e9841c005080201340432f44000c8001805f4fb146ddd0967d0'O; |
| const octetstring c_gmm_mt_det_req := '00bb146ddd0050001682ffff0a8204030e8941c00908050215f0b6'O; |
| const octetstring c_gmm_mo_att_cpl := '01fb146ddd000004088832f44000c80051e000800e000801c009080339d7bc'O; |
| |
| f_bssgp_dec_and_log(c_bvc_reset_pcu); |
| f_bssgp_dec_and_log(c_bvc_reset_q); |
| f_bssgp_dec_and_log(c_status_pcu); |
| f_bssgp_dec_and_log(c_reset_ack_q); |
| f_bssgp_dec_and_log(c_reset_ack_pcu); |
| f_bssgp_dec_and_log(c_unblock_pcu); |
| f_bssgp_dec_and_log(c_unblock_ack_q); |
| f_bssgp_dec_and_log(c_fc_bvc_pcu); |
| f_bssgp_dec_and_log(c_fc_bvc_ack_q); |
| f_bssgp_dec_and_log(c_gmm_mo_att_req); |
| f_bssgp_dec_and_log(c_gmm_mt_ac_req); |
| f_bssgp_dec_and_log(c_gmm_mo_ac_resp); |
| f_bssgp_dec_and_log(c_gmm_mt_att_acc); |
| f_bssgp_dec_and_log(c_gmm_mt_det_req); |
| f_bssgp_dec_and_log(c_gmm_mo_att_cpl); |
| |
| log(ts_BSSGP_PS_PAGING_IMSI(196, '262420123456789'H)); |
| } |
| |
| function f_ns_assert_prepr(in octetstring a, in octetstring b) { |
| log("NS Input: ", a); |
| log("NS Expected: ", b); |
| |
| if (a != b) { |
| setverdict(fail); |
| } else { |
| setverdict(pass); |
| } |
| } |
| |
| function f_ns_dec_and_log(in octetstring inp) { |
| log("NS Input: ", inp); |
| var PDU_NS dec := dec_PDU_NS(inp); |
| log("NS Decoded: ", dec); |
| } |
| |
| testcase TC_selftest_ns() runs on dummy_CT { |
| const octetstring c_ns_reset_pcu := '000000c4271e813d'O; |
| |
| /* single byte length to two byte length */ |
| f_ns_assert_prepr('04058101'O, '0405000101'O); |
| f_ns_assert_prepr('040589000102030405060708'O, '04050009000102030405060708'O); |
| /* two byte length to two byte length */ |
| f_ns_assert_prepr('0405000101'O, '0405000101'O); |
| /* special case: NS-UNITDATA */ |
| f_ns_assert_prepr('00aabbccddeeffaa29822342'O, '00aabbccddeeffaa2900022342'O); |
| /* multiple TLVs */ |
| f_ns_assert_prepr('234281aa4382bbbb'O, '23420001aa430002bbbb'O); |
| /* zero-length */ |
| f_ns_assert_prepr('230080'O, '23000000'O); |
| |
| f_ns_dec_and_log(c_ns_reset_pcu); |
| } |
| |
| const octetstring gmm_auth_req := '081200102198c72477ea104895e8b959acc58b108182'O; |
| |
| /* Wrap downlink GMM into LLC, encode + send it via BSSGP to PCU */ |
| function tx_gmm(BIT1 c_r, in octetstring gmm_pdu, BIT4 sapi := c_LLC_SAPI_LLGMM) runs on dummy_CT { |
| var PDU_LLC llc; |
| |
| //log("GMM Tx: ", dec_PDU_L3_SGSN_MS(gmm_pdu)); |
| |
| log(c_r, g_mmctx.n_u, gmm_pdu, sapi); |
| llc := valueof(ts_LLC_UI(gmm_pdu, sapi, c_r, g_mmctx.n_u)); |
| log(llc); |
| g_mmctx.n_u := g_mmctx.n_u + 1; |
| |
| log(ts_BSSGP_DL_UD(g_mmctx.tlli, enc_PDU_LLC(llc))); |
| |
| BSSGP.send(ts_BSSGP_DL_UD(g_mmctx.tlli, enc_PDU_LLC(llc))); |
| } |
| |
| /* Establish BSSGP connection to PCU */ |
| function f_bssgp_establish() runs on dummy_CT { |
| timer T:= 60.0; |
| |
| f_init(); |
| T.start |
| alt { |
| [] BSSGP.receive(t_BssgpStsInd(?, ?, BVC_S_UNBLOCKED)) { } |
| [] BSSGP.receive { repeat; } |
| [] T.timeout { setverdict(fail); } |
| } |
| T.stop |
| log("BSSGP successfully initialized"); |
| } |
| |
| /* Send PS-PAGING via BSSGP to PCU, expect it to show up on L1/Um */ |
| testcase TC_paging() runs on dummy_CT { |
| var hexstring imsi := '262420123456789'H; |
| var BssgpBvci bvci := 196; |
| var GsmTmsi tmsi := hex2int('01234567'H); |
| |
| f_bssgp_establish(); |
| |
| BSSGP.send(ts_BSSGP_PS_PAGING_IMSI(bvci, imsi)); |
| BSSGP.send(ts_BSSGP_PS_PAGING_PTMSI(bvci, imsi, tmsi)); |
| |
| while (true) { |
| var BssgpDecoded bd; |
| alt { |
| [] BSSGP.receive(tr_BD_L3_MT(?)) -> value bd { |
| log("BSSGP Rx: ", bd); |
| } |
| [] BSSGP.receive(t_BssgpStsInd(?, ?, BVC_S_UNBLOCKED)) { repeat; } |
| [] BSSGP.receive { repeat; } |
| } |
| } |
| } |
| |
| /* Establish an UL TBF: Tune to ARFCN, send RACH, receive AGCH, enable TBF Rx */ |
| function f_establish_ul_tbf() runs on dummy_CT { |
| timer T := 5.0; |
| var BCCH_tune_req tune_req := { { false, 871 }, true }; |
| L1.send(tune_req); |
| /* FIXME: wait for confirm */ |
| |
| var TBF_establish_req est_req := { ra := hex2int('7B'H) }; |
| L1.send(est_req); |
| T.start; |
| /* FIXME: wait for confirm */ |
| alt { |
| [] L1.receive(TBF_establish_res:?) {} |
| [] L1.receive { repeat; } |
| [] T.timeout { setverdict(fail); } |
| } |
| T.stop; |
| } |
| |
| /* Template fro uplink Data block */ |
| template RlcmacUlBlock t_RLCMAC_UL_DATA(template uint5_t tfi, template uint4_t cv, template uint7_t bsn, |
| template LlcBlocks blocks := {}, template boolean stall := false) := { |
| data := { |
| mac_hdr := { |
| payload_type := MAC_PT_RLC_DATA, |
| countdown := cv, |
| stall_ind := false, |
| retry := false, |
| spare := '0'B, |
| pfi_ind := false, |
| tfi := tfi, |
| tlli_ind := false, |
| bsn := bsn, |
| e := false |
| }, |
| tlli := omit, |
| pfi := omit, |
| blocks := blocks |
| } |
| } |
| template RlcmacUlBlock t_RLCMAC_UL_DATA_TLLI(template uint5_t tfi, template uint4_t cv, template uint7_t bsn, |
| template LlcBlocks blocks := {}, template boolean stall := false, template GprsTlli tlli) modifies t_RLCMAC_UL_DATA := { |
| data := { |
| tlli := tlli |
| } |
| } |
| |
| template DlMacHeader t_RLCMAC_DlMacH(template MacPayloadType pt, template MacRrbp rrbp, template |
| uint3_t usf) := { |
| payload_type := pt, |
| rrbp := rrbp, |
| rrbp_valid := ispresent(rrbp), |
| usf := usf |
| } |
| |
| /* Receive Template for Downlink ACK/NACK */ |
| template RlcmacDlBlock tr_RLCMAC_ACK_NACK(template uint5_t ul_tfi, template GprsTlli tlli := ?) := { |
| ctrl := { |
| mac_hdr := { |
| payload_type := (MAC_PT_RLCMAC_NO_OPT, MAC_PT_RLCMAC_OPT), |
| rrbp:= ?, |
| rrbp_valid := true, |
| usf := ? |
| }, |
| opt := *, |
| payload := { |
| msg_type := PACKET_UL_ACK_NACK, |
| u := { |
| ul_ack_nack := { |
| page_mode := ?, |
| msg_excape := ?, |
| uplink_tfi := ul_tfi, |
| is_egprs := '0'B, |
| gprs := { |
| ch_coding_cmd := ?, |
| ack_nack_desc := ?, |
| cont_res_tlli_present := ?, |
| cont_res_tlli := tlli, |
| pkt_ta_present := ?, |
| pkt_ta := *, |
| pwr_ctrl_present := ?, |
| pwr_ctrl := * |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| /* Template for Uplink MAC Control Header */ |
| template UlMacCtrlHeader t_RLCMAC_UlMacCtrlH(template MacPayloadType pt, template boolean retry := false) := { |
| payload_type := pt, |
| spare := '00000'B, |
| retry := retry |
| } |
| |
| /* Template for Uplink Conntrol ACK */ |
| template RlcmacUlBlock ts_RLCMAC_CTRL_ACK(GprsTlli tlli, CtrlAck ack := MS_RCVD_TWO_RLC_SAME_RTI_DIFF_RBSN) := { |
| ctrl := { |
| mac_hdr := t_RLCMAC_UlMacCtrlH(MAC_PT_RLCMAC_NO_OPT), |
| payload := { |
| msg_type := PACKET_CONTROL_ACK, |
| u := { |
| ctrl_ack := { |
| tlli := tlli, |
| ctrl_ack := ack |
| } |
| } |
| } |
| } |
| } |
| |
| /* Template for a LlcBlock (part of a LLC frame inside RlcMac?lDataBlock */ |
| template LlcBlock t_RLCMAC_LLCBLOCK(octetstring data, BIT1 more := '0'B, boolean e := true) := { |
| hdr := { |
| length_ind := lengthof(data), |
| more := more, |
| e := e |
| }, |
| payload := data |
| } |
| |
| /* compute a random TLLI; FIXME: what about TLLI prefix / local/foreign/...? */ |
| function f_random_tlli() return GprsTlli { |
| var GprsTlli tlli := float2int(rnd()* 4294967295.0); |
| return tlli; |
| } |
| |
| /* Send a single Uplink Block via Um; Verify reception on BSSGP; Expect UL_ACK on Um */ |
| function f_single_ul_block(GprsCodingScheme cs) runs on dummy_CT { |
| var GprsTlli tlli := f_random_tlli(); |
| var octetstring payload := '01020304'O; |
| |
| /* establish upling TBF */ |
| f_establish_ul_tbf(); |
| |
| /* Generate LLC PDU consisting of single RLC block and send it via simulated MS */ |
| var template RlcmacUlBlock blk := t_RLCMAC_UL_DATA_TLLI(0, 0, 0, {t_RLCMAC_LLCBLOCK(payload)}, false, tlli); |
| L1.send(RLCMAC_ph_data_req:{tbf_id := 0, cs := cs, block := blk}); |
| /* ensure that this LLC-PDU arrives from the right TLLI at the (simulated) SGSN */ |
| BSSGP.receive(tr_BD_BSSGP(tr_BSSGP_UL_UD(tlli, ?, payload))); |
| |
| /* ensure the MS eceives an UL_ACK_NACK */ |
| alt { |
| [] L1.receive(RLCMAC_ph_data_ind:{cs:=?, block:=tr_RLCMAC_ACK_NACK(0, tlli)}) { }; |
| [] L1.receive { repeat; }; |
| } |
| log("found matching ACK/NACK"); |
| /* send CTRL ACK in uplink */ |
| //L1.send(FIXME); |
| } |
| |
| testcase TC_rach() runs on dummy_CT { |
| var hexstring imsi := '262420123456789'H; |
| var BssgpBvci bvci := 196; |
| var GsmTmsi tmsi := hex2int('01234567'H); |
| |
| f_init(); |
| |
| f_bssgp_establish(); |
| |
| f_single_ul_block(CS1); |
| |
| while (true) { |
| var BssgpDecoded bd; |
| var RLCMAC_ph_data_ind dl_msg; |
| alt { |
| |
| [] BSSGP.receive(tr_BD_BSSGP(?)) -> value bd { |
| log("BSSGP Rx: ", bd); |
| } |
| [] BSSGP.receive(t_BssgpStsInd(?, ?, BVC_S_UNBLOCKED)) { repeat; } |
| [] BSSGP.receive { repeat; } |
| |
| [] L1.receive(RLCMAC_ph_data_ind:?) -> value dl_msg { |
| log("L1 DL: ", dl_msg); |
| } |
| } |
| } |
| } |
| |
| |
| testcase TC_nsem() runs on dummy_CT { |
| |
| f_bssgp_establish(); |
| |
| while (true) { |
| var BssgpDecoded bd; |
| alt { |
| [] BSSGP.receive(tr_BD_BSSGP(?)) -> value bd { |
| log("BSSGP Rx: ", bd); |
| //log("GMM Rx: ", dec_PDU_L3_MS_SGSN(pdu.payload)); |
| g_mmctx.tlli := oct2int(bd.bssgp.pDU_BSSGP_UL_UNITDATA.tLLI); |
| tx_gmm(LLC_CR_DL_CMD, gmm_auth_req); |
| } |
| [] BSSGP.receive(t_BssgpStsInd(?, ?, BVC_S_UNBLOCKED)) { repeat; } |
| [] BSSGP.receive { repeat; } |
| } |
| } |
| } |
| |
| |
| function f_llc_dec_and_log(in octetstring inp) { |
| log("LLC Input: ", inp); |
| var PDU_LLC dec := dec_PDU_LLC(inp); |
| log("LLC Decoded: ", dec); |
| } |
| |
| function f_llc_assert(in octetstring a, in octetstring b) { |
| log("LLC Input: ", a); |
| log("LLC Expected: ", b); |
| |
| if (a != b) { |
| setverdict(fail); |
| } else { |
| setverdict(pass); |
| } |
| } |
| |
| |
| testcase TC_selftest_llc() runs on dummy_CT { |
| const octetstring c_gmm_att_pcu := '01c001080103e5e000210a0005f4fb146ddd32f44000c8001d1b53432b37159ef9090070000dd9c6321200e00019b32c642401c00020170580460b'O; |
| const octetstring c_gmm_att_pcu_nofcs := '01c001080103e5e000210a0005f4fb146ddd32f44000c8001d1b53432b37159ef9090070000dd9c6321200e00019b32c642401c000201705'O; |
| |
| f_llc_dec_and_log(c_gmm_att_pcu); |
| |
| //f_llc_assert(f_LLC_append_fcs(c_gmm_att_pcu_nofcs), c_gmm_att_pcu); |
| |
| log(valueof(ts_LLC_UI(gmm_auth_req, c_LLC_SAPI_LLGMM, LLC_CR_DL_CMD, g_mmctx.n_u))); |
| log(ts_LLC_UI(gmm_auth_req, c_LLC_SAPI_LLGMM, LLC_CR_DL_CMD, g_mmctx.n_u)); |
| } |
| |
| testcase TC_selftest_rlcmac() runs on dummy_CT { |
| var RlcmacDlCtrlBlock dcb; |
| var RlcmacUlCtrlBlock ucb; |
| const octetstring c_dl_ul_ack_nack := '40240080400000000000000077628dbba14b2b2b2b2b2b'O; |
| const octetstring c_dl_data := '0f00007341c001081200102198c72477ea104895e8b959acc58b108182f4d0454300'O; |
| const octetstring c_dl_data2 := '070002165dc0012b2b2b43c0012b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b00'O; |
| const octetstring c_ul_ctrl_ack := '4006ec51b7772b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b'O; |
| const octetstring c_ul_dl_ack_nack := '4008004000000000000000701000edc0000b2b2b2b2b2b'O; |
| const octetstring c_dl_ul_assign := '482857628dbbaf0126e68800082b2b2b2b2b2b2b2b2b2b'O; |
| |
| log(c_dl_ul_ack_nack); |
| dcb := dec_RlcmacDlCtrlBlock(c_dl_ul_ack_nack); |
| log(dcb); |
| //log(dec_RlcmacDlCtrlMsg(dcb.payload)); |
| |
| f_rlcmac_dld_decenc(c_dl_data); |
| |
| f_rlcmac_dld_decenc(c_dl_data2); |
| |
| log(c_ul_ctrl_ack); |
| ucb := dec_RlcmacUlCtrlBlock(c_ul_ctrl_ack); |
| log(ucb); |
| //log(dec_RlcmacUlCtrlMsg(ucb.payload)); |
| |
| log(c_ul_dl_ack_nack); |
| ucb := dec_RlcmacUlCtrlBlock(c_ul_dl_ack_nack); |
| log(ucb); |
| //log(dec_RlcmacUlCtrlMsg(ucb.payload)); |
| |
| log(c_dl_ul_assign); |
| dcb := dec_RlcmacDlCtrlBlock(c_dl_ul_assign); |
| log(dcb); |
| //log(dec_RlcmacDlCtrlMsg(dcb.payload)); |
| |
| const octetstring c_uld_tlli_noext := '080101a61cab5201c001080103e5e000310a0005f4e61cab5232f44000c8001d1b00'O; |
| f_rlcmac_uld_decenc(c_uld_tlli_noext); |
| |
| const octetstring c_uld_tlli_ext7pad := '0001041da61cab5200201705a96e102b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b00'O; |
| log("ULD_decenc"); |
| f_rlcmac_uld_decenc(c_uld_tlli_ext7pad); |
| log("UL_decenc"); |
| f_rlcmac_ul_decenc(c_uld_tlli_ext7pad); |
| |
| f_rlcmac_ul_decenc(c_ul_dl_ack_nack); |
| } |
| |
| function f_rlcmac_ul_decenc(in octetstring buf) { |
| log("=================================="); |
| log("In: ", buf); |
| var RlcmacUlBlock udb := dec_RlcmacUlBlock(buf); |
| log("Dec: ", udb); |
| var octetstring enc := enc_RlcmacUlBlock(udb); |
| log("Enc: ", enc); |
| if (enc != buf) { setverdict(fail, "Re-encoded data doesn't equal input data"); } |
| } |
| |
| function f_rlcmac_uld_decenc(in octetstring buf) { |
| log("=================================="); |
| log("In: ", buf); |
| var RlcmacUlDataBlock udb := dec_RlcmacUlDataBlock(buf); |
| log("Dec: ", udb); |
| var octetstring enc := enc_RlcmacUlDataBlock(udb); |
| log("Enc: ", enc); |
| if (enc != buf) { setverdict(fail, "Re-encoded data doesn't equal input data"); } |
| } |
| |
| function f_rlcmac_dld_decenc(in octetstring buf) { |
| log("=================================="); |
| log("In: ", buf); |
| var RlcmacDlDataBlock udb := dec_RlcmacDlDataBlock(buf); |
| log("Dec: ", udb); |
| var octetstring enc := enc_RlcmacDlDataBlock(udb); |
| log("Enc: ", enc); |
| if (enc != buf) { setverdict(fail, "Re-encoded data doesn't equal input data"); } |
| } |
| |
| |
| testcase TC_selftest_rr() runs on dummy_CT { |
| //const octetstring c_paging_none := '06210001F02B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B'O |
| const octetstring c_paging_none := '1506210001F0'O; |
| const octetstring c_ia_tbf := '2d063f100fe3677bd8440000c800100b2b2b2b2b2b2b2b'O |
| log(c_paging_none); |
| log(dec_GsmRrMessage(c_paging_none)); |
| |
| log(c_ia_tbf); |
| log(dec_GsmRrMessage(c_ia_tbf)); |
| } |
| |
| control { |
| execute(TC_selftest_bssgp()); |
| execute(TC_selftest_ns()); |
| execute(TC_selftest_llc()); |
| execute(TC_selftest_rr()); |
| execute(TC_selftest_rlcmac()); |
| execute(TC_nsem()); |
| execute(TC_paging()); |
| } |
| }; |