diff options
Diffstat (limited to 'pcu')
| -rw-r--r-- | pcu/GPRS_Components.ttcn | 1484 | ||||
| -rw-r--r-- | pcu/GPRS_TBF.ttcn | 13 | ||||
| -rw-r--r-- | pcu/PCUIF_Components.ttcn (renamed from pcu/PCUIF_RAW_Components.ttcn) | 273 | ||||
| -rw-r--r-- | pcu/PCU_Tests.cfg | 57 | ||||
| -rw-r--r-- | pcu/PCU_Tests.default | 54 | ||||
| -rw-r--r-- | pcu/PCU_Tests.ttcn | 7881 | ||||
| -rw-r--r-- | pcu/PCU_Tests_NS.ttcn | 248 | ||||
| -rw-r--r-- | pcu/PCU_Tests_RAW.ttcn | 1067 | ||||
| -rw-r--r-- | pcu/PCU_Tests_SNS.cfg | 56 | ||||
| -rw-r--r-- | pcu/PCU_Tests_SNS.ttcn (renamed from pcu/PCU_Tests_RAW_SNS.ttcn) | 297 | ||||
| -rw-r--r-- | pcu/PCU_Tests_SNSv6.cfg | 36 | ||||
| -rw-r--r-- | pcu/PCU_selftest.ttcn | 318 | ||||
| -rw-r--r-- | pcu/README.md | 95 | ||||
| -rw-r--r-- | pcu/SGSN_Components.ttcn | 151 | ||||
| -rw-r--r-- | pcu/expected-results.xml | 148 | ||||
| -rwxr-xr-x | pcu/gen_links.sh | 15 | ||||
| -rw-r--r-- | pcu/osmo-bsc.cfg | 194 | ||||
| -rw-r--r-- | pcu/osmo-bts.cfg | 83 | ||||
| -rw-r--r-- | pcu/osmo-pcu-sns.cfg | 4 | ||||
| -rw-r--r-- | pcu/osmo-pcu.cfg | 17 | ||||
| -rwxr-xr-x | pcu/regen_makefile.sh | 26 |
21 files changed, 10447 insertions, 2070 deletions
diff --git a/pcu/GPRS_Components.ttcn b/pcu/GPRS_Components.ttcn new file mode 100644 index 00000000..849a251d --- /dev/null +++ b/pcu/GPRS_Components.ttcn @@ -0,0 +1,1484 @@ +module GPRS_Components { +/* + * Osmocom PCU test suite in TTCN-3, components for GPRS handlng + * (C) 2018-2019 Harald Welte <laforge@gnumonks.org> + * (C) 2019 Vadim Yanitskiy <axilirator@gmail.com> + * (C) 2020 by sysmocom s.f.m.c. GmbH <info@sysmocom.de> + * 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 GSM_Types all; +import from GSM_RR_Types all; +import from GSM_RestOctets all; + +import from RLCMAC_CSN1_Types all; +import from RLCMAC_CSN1_Templates all; +import from RLCMAC_Types all; +import from RLCMAC_Templates all; + +import from MobileL3_CommonIE_Types all; +import from L3_Templates all; + +import from PCUIF_Types all; +import from PCUIF_Components all; +import from Native_Functions all; + +modulepar { + /* ARFCN of 1st TRX. Subsequent TRX are allocated incrementing ARFCNs. Nth TRX => base_arfcn + N-1 */ + GsmArfcn mp_base_arfcn := 871; +}; + +type record TsTrxBtsNum { + uint3_t ts_nr, + uint3_t trx_nr, + uint8_t bts_nr, + uint8_t blk_nr +}; + +/* Useful to store poll FN + BTS+TRX+TS requested by network */ +type record PollFnCtx { + TsTrxBtsNum tstrxbts, + uint32_t fn +}; + +template (value) TsTrxBtsNum ts_TsTrxBtsNum(uint3_t ts_nr := 7, + uint3_t trx_nr := 0, + uint8_t bts_nr := 0, + uint8_t blk_nr := 0) := { + ts_nr := ts_nr, + trx_nr := trx_nr, + bts_nr := bts_nr, + blk_nr := blk_nr +}; +template TsTrxBtsNum tr_TsTrxBtsNum(template uint3_t ts_nr := ?, + template uint3_t trx_nr := ?, + template uint8_t bts_nr := ?, + template uint8_t blk_nr := ?) := { + ts_nr := ts_nr, + trx_nr := trx_nr, + bts_nr := bts_nr, + blk_nr := blk_nr +}; + +type union PacketDlAssignChan { + PacketDlAssign ccch, + PacketDlAssignment pacch +}; + +type record DlTbf { + GsmRrMessage rr_imm_ass optional, + PacketDlAssignChan ass optional, + uint5_t tfi, + GsmArfcn arfcn optional, + BIT8 ts_mask, + AckNackDescription acknack_desc, + EgprsAckNackDescription egprs_acknack_desc +}; + +type union PacketUlAssignChan { + PacketUlAssign ccch, + EgprsUlAss ccch_egprs, + PacketUlAssignment pacch +}; + +type record UlTbf { + GsmRrMessage rr_imm_ass optional, + PacketUlAssignChan ass optional, + uint5_t tfi, + GsmArfcn arfcn optional, + BIT8 ts_mask, + uint3_t usf[8], + boolean is_egprs, + uint14_t bsn, + CodingScheme tx_cs_mcs, + GsmFrameNumber start_time_fn +}; + +type record GprsMS { + hexstring imsi, + GprsTlli tlli, + uint16_t ra, + uint8_t ra_is_11bit, + PCUIF_BurstType burst_type, + TimingAdvance ta, + int16_t lqual_cb, + UlTbf ul_tbf optional, /* TODO: Only 1 UL tbf supported for now */ + DlTbf dl_tbf optional /* TODO: Only 1 DL tbf supported for now */ +}; +type record of GprsMS GprsMSList; + +template AckNackDescription t_AckNackDescription_init := { + final_ack := '0'B, + starting_seq_nr := 0, + receive_block_bitmap := '0000000000000000000000000000000000000000000000000000000000000000'B +} + +template EgprsAckNackDescription t_EgprsAckNackDescription_init := { + final_ack := '0'B, + begin_window := '1'B, + end_window := '1'B, + starting_seq_nr := 1, + compressed := '0'B, + urbb := '0000000000000000000000000000000000000000000000000000000000000000'B +} + +const uint3_t USF_UNUSED := 7; /* used to indicate PRACH */ + +template (value) GprsMS t_GprsMS_def := { + imsi := f_gen_imsi(42), + tlli := f_gen_tlli(), + ra := bit2int(chan_req_def), + ra_is_11bit := 0, + burst_type := BURST_TYPE_0, + ta := 0, + lqual_cb := 0, + ul_tbf := omit, + dl_tbf := omit +}; + +template (value) DlTbf t_DlTbf_def := { + rr_imm_ass := omit, + ass := omit, + tfi := 0, + arfcn := omit, + ts_mask := '00000000'B, + acknack_desc := t_AckNackDescription_init, + egprs_acknack_desc := t_EgprsAckNackDescription_init +}; + +template (value) UlTbf t_UlTbf_def := { + rr_imm_ass := omit, + ass := omit, + tfi := 0, + arfcn := omit, + ts_mask := '00000000'B, + usf := { USF_UNUSED, USF_UNUSED, USF_UNUSED, USF_UNUSED, USF_UNUSED, USF_UNUSED, USF_UNUSED, USF_UNUSED }, + is_egprs := false, + bsn := 0, + tx_cs_mcs := CS_1, + start_time_fn := 0 +}; + +type component MS_BTS_IFACE_CT { + /* Virtual BTS component */ + var RAW_PCU_BTS_CT vc_BTS; + /* Connection to the BTS component (one for now) */ + port RAW_PCU_MSG_PT BTS; + + /* Mobile station(s) involved in a testing scenario */ + var GprsMSList g_ms := { }; + + /* Value at which Countdown Procedure starts. Announced by network (GPRS Cell Options as per TS 04.60 Chapter 12.24) */ + var uint4_t g_bs_cv_max := 4; +} + +/* Generate a list of GprsMS (unique IMSI/TLLI, cyclic RA) of the given size */ +function f_init_gprs_ms(integer num_ms := 1, template (value) GprsMS t_ms := t_GprsMS_def) +runs on MS_BTS_IFACE_CT { + for (var integer i := 0; i < num_ms; i := i + 1 ) { + var GprsMS ms := valueof(t_ms); + + /* We assume that num_ms is not a large number */ + ms.imsi := f_gen_imsi(i + 1); + ms.tlli := int2oct(i + 1, 4); + + /* Ensure different RA for siblings */ + if (ms.ra == bit2int(chan_req_def)) { + /* 01111 { 0xx | x0x | xx0 } */ + f_ms_use_ra(ms, ms.ra + (i mod 7)); + } else if (ms.ra == bit2int(chan_req_sb)) { + /* 01110xxx */ + f_ms_use_ra(ms, ms.ra + (i mod 8)); + } + + /* Append to the global list */ + g_ms := g_ms & { ms }; + } +} + + +function f_shutdown(charstring file, integer line, + boolean final := false) +runs on MS_BTS_IFACE_CT { + /* Determine if the test case was aborted in the middle */ + if (not final) { + log("Test case ", testcasename(), " aborted at ", file, ":", line); + } else { + /* Guard verdict to avoid 'none' */ + setverdict(pass); + } + + /* Properly shutdown virtual BTS and its clock generator */ + BTS.send(ts_RAW_PCU_CMD(GENERAL_CMD_SHUTDOWN)); + vc_BTS.done; /* wait untill it's done */ + + /* Shutdown the others and MTC */ + all component.stop; + mtc.stop; +} + +function f_arfcn2trxnr(GsmArfcn arfcn) runs on MS_BTS_IFACE_CT return uint3_t { + if (arfcn < mp_base_arfcn) { + setverdict(fail, "Unable to find TRX NR for arfcn ", arfcn); + f_shutdown(__BFILE__, __LINE__); + } + return arfcn - mp_base_arfcn; +} + +function f_trxnr2arfcn(uint3_t trx_nr) return GsmArfcn { + return mp_base_arfcn + trx_nr; +} + +/* 3GPP TS 44.018 10.5.2.38 Starting Time */ +function f_tbf_starting_time_2_fn_mod_42432(TbfStartingTime st) +runs on MS_BTS_IFACE_CT return GsmFrameNumber { + return 51 * ((st.t3 - st.t2) mod 26) + st.t3 + 51 * 26 * st.t1; +} + +function fn2bn(GsmFrameNumber fn) return uint32_t { + return (fn mod 52) / 4; +} +function f_next_pdch_block(GsmFrameNumber fn) return GsmFrameNumber +{ + var uint32_t bn := fn2bn(fn) + 1; + fn := fn - (fn mod 52); + fn := fn + bn * 4 + bn / 3; + return fn mod GsmMaxFrameNumber; +} + +function f_ultbf_new_from_rr_imm_ass(in GsmRrMessage rr_imm_ass) +runs on MS_BTS_IFACE_CT return UlTbf { + var UlTbf ul_tbf := valueof(t_UlTbf_def); + var uint3_t tn_allocated := rr_imm_ass.payload.imm_ass.pkt_chan_desc.tn; + + ul_tbf.rr_imm_ass := rr_imm_ass; + if (rr_imm_ass.payload.imm_ass.pkt_chan_desc.presence == '0'B and + rr_imm_ass.payload.imm_ass.pkt_chan_desc.zero.hopping == '0'B) { + ul_tbf.arfcn := rr_imm_ass.payload.imm_ass.pkt_chan_desc.zero.arfcn; + } + ul_tbf.ts_mask[tn_allocated] := '1'B; + + /* Make sure we received an UL TBF Assignment */ + if (match(rr_imm_ass, tr_IMM_TBF_ASS(dl := false, rest := tr_IaRestOctets_ULAss(?)))) { + ul_tbf.ass.ccch := rr_imm_ass.payload.imm_ass.rest_octets.hh.pa.uldl.ass.ul; + log("Rx Uplink TBF GPRS assignment: ", ul_tbf.ass.ccch); + ul_tbf.is_egprs := false; + if (match(ul_tbf.ass.ccch, tr_PacketUlDynAssign)) { + ul_tbf.tfi := ul_tbf.ass.ccch.dynamic.tfi_assignment; + ul_tbf.tx_cs_mcs := f_rlcmac_block_ChCodingCommand2cs_mcs(ul_tbf.ass.ccch.dynamic.ch_coding_cmd); + ul_tbf.usf[tn_allocated] := ul_tbf.ass.ccch.dynamic.usf; + if (ul_tbf.ass.ccch.dynamic.tbf_starting_time_present == '1'B) { + ul_tbf.start_time_fn := f_tbf_starting_time_2_fn_mod_42432(ul_tbf.ass.ccch.dynamic.tbf_starting_time); + } + } else if (match(ul_tbf.ass.ccch, tr_PacketUlSglAssign)) { + ul_tbf.start_time_fn := f_tbf_starting_time_2_fn_mod_42432(ul_tbf.ass.ccch.single.tbf_starting_time); + } + } else if (match(rr_imm_ass, tr_IMM_TBF_ASS(dl := false, rest := tr_IaRestOctets_EGPRSULAss(?)))) { + ul_tbf.ass.ccch_egprs := rr_imm_ass.payload.imm_ass.rest_octets.lh.egprs_ul; + log("Rx Uplink TBF EGPRS assignment: ", ul_tbf.ass.ccch_egprs); + ul_tbf.is_egprs := true; + if (match(ul_tbf.ass.ccch_egprs, tr_EgprsUlAssDynamic)) { + ul_tbf.tfi := ul_tbf.ass.ccch_egprs.dynamic.tfi_assignment; + ul_tbf.tx_cs_mcs := f_rlcmac_block_EgprsChCodingCommand2cs_mcs(ul_tbf.ass.ccch_egprs.dynamic.egprs_ch_coding_cmd); + ul_tbf.usf[tn_allocated] := ul_tbf.ass.ccch_egprs.dynamic.usf; + if (ul_tbf.ass.ccch_egprs.dynamic.tbf_starting_time_present == '1'B) { + ul_tbf.start_time_fn := f_tbf_starting_time_2_fn_mod_42432(ul_tbf.ass.ccch_egprs.dynamic.tbf_starting_time); + } + } else if (match(ul_tbf.ass.ccch_egprs, tr_EgprsUlAssMultiblock)) { + ul_tbf.start_time_fn := f_tbf_starting_time_2_fn_mod_42432(ul_tbf.ass.ccch_egprs.multiblock.tbf_starting_time); + /* Nothing to do here yet */ + } + } else { + setverdict(fail, "Failed to match UL TBF Assignment: ", rr_imm_ass); + f_shutdown(__BFILE__, __LINE__); + } + + setverdict(pass); + return ul_tbf; +} + +function f_ultbf_new_from_ass_pacch(RlcmacDlBlock dl_block) +runs on MS_BTS_IFACE_CT return UlTbf { + var UlTbf ul_tbf := valueof(t_UlTbf_def); + var boolean freq_par_present := false; + var FrequencyParameters freq_par; + + ul_tbf.ass.pacch := dl_block.ctrl.payload.u.ul_assignment; + ul_tbf.tx_cs_mcs := f_rlcmac_dl_block_get_assigned_ul_cs_mcs(dl_block); + ul_tbf.tfi := f_rlcmac_dl_block_get_tfi(dl_block); + /* TODO: handle GlobalTfiOrTlli tfi_or_tlli from pkt_ul_ass */ + + /* TODO: support single block allocation */ + if (match(dl_block, tr_RLCMAC_UL_PACKET_ASS_GPRS(?, tr_PktUlAssGprsDynamic(tr_DynamicAllocation(?))))) { + ul_tbf.tfi := dl_block.ctrl.payload.u.ul_assignment.gprs.dyn_block_alloc.ul_tfi_assignment; + freq_par_present := dl_block.ctrl.payload.u.ul_assignment.gprs.freq_par_present == '1'B; + if (freq_par_present) { + freq_par := dl_block.ctrl.payload.u.ul_assignment.gprs.freq_par; + } + ul_tbf.is_egprs := false; + for (var integer i := 0; i < 8; i := i + 1) { + if (dl_block.ctrl.payload.u.ul_assignment.gprs.dyn_block_alloc.ts_allocation.ts[i].presence == '1'B) { + ul_tbf.ts_mask[i] := '1'B; + ul_tbf.usf[i] := dl_block.ctrl.payload.u.ul_assignment.gprs.dyn_block_alloc.ts_allocation.ts[i].usf_tn; + } + } + } else if (match(dl_block, tr_RLCMAC_UL_PACKET_ASS_EGPRS(?, tr_PktUlAssEgprsDynamic(tr_DynamicAllocation(?))))) { + ul_tbf.tfi := dl_block.ctrl.payload.u.ul_assignment.egprs.dyn_block_alloc.ul_tfi_assignment; + freq_par_present := dl_block.ctrl.payload.u.ul_assignment.egprs.freq_par_present == '1'B; + if (freq_par_present) { + freq_par := dl_block.ctrl.payload.u.ul_assignment.egprs.freq_par; + } + ul_tbf.is_egprs := true; + for (var integer i := 0; i < 8; i := i + 1) { + if (dl_block.ctrl.payload.u.ul_assignment.egprs.dyn_block_alloc.ts_allocation.ts[i].presence == '1'B) { + ul_tbf.ts_mask[i] := '1'B; + ul_tbf.usf[i] := dl_block.ctrl.payload.u.ul_assignment.egprs.dyn_block_alloc.ts_allocation.ts[i].usf_tn; + } + } + } + + /* FIXME: freq_par and arfcn are optional. in that case we need to + * infer/reuse from current dl_tbf or ul_tbf */ + if (freq_par_present and freq_par.presence == '00'B) { + ul_tbf.arfcn := freq_par.arfcn; + } + + return ul_tbf; +} + +function f_dltbf_new_from_rr_imm_ass(in GsmRrMessage rr_imm_ass, template PacketDlAssign dl_ass := tr_PacketDlAssign(?)) +runs on MS_BTS_IFACE_CT return DlTbf { + var DlTbf dl_tbf := valueof(t_DlTbf_def); + + dl_tbf.rr_imm_ass := rr_imm_ass; + if (rr_imm_ass.payload.imm_ass.pkt_chan_desc.presence == '0'B and + rr_imm_ass.payload.imm_ass.pkt_chan_desc.zero.hopping == '0'B) { + dl_tbf.arfcn := rr_imm_ass.payload.imm_ass.pkt_chan_desc.zero.arfcn; + } + dl_tbf.ts_mask[rr_imm_ass.payload.imm_ass.pkt_chan_desc.tn] := '1'B; + + /* Make sure we received a DL TBF Assignment */ + if (match(rr_imm_ass, tr_IMM_TBF_ASS(dl := true, rest := tr_IaRestOctets_DLAss(dl_ass)))) { + dl_tbf.ass.ccch := rr_imm_ass.payload.imm_ass.rest_octets.hh.pa.uldl.ass.dl; + log("Rx Downlink TBF assignment: ", dl_tbf.ass); + } else { + setverdict(fail, "Failed to match DL TBF Assignment: ", rr_imm_ass); + f_shutdown(__BFILE__, __LINE__); + } + + /* TODO: match TLLI */ + if (dl_tbf.ass.ccch.group1_present == '1'B) { + dl_tbf.tfi := dl_tbf.ass.ccch.group1.tfi_assignment; + } else { + setverdict(fail, "Immediate Assignment contains no DL TFI"); + f_shutdown(__BFILE__, __LINE__); + } + + setverdict(pass); + return dl_tbf; +} + +function f_dltbf_new_from_ass_pacch(RlcmacDlBlock dl_block) +runs on MS_BTS_IFACE_CT return DlTbf { + var DlTbf dl_tbf := valueof(t_DlTbf_def); + var boolean freq_par_present := false; + var FrequencyParameters freq_par; + + dl_tbf.ass.pacch := dl_block.ctrl.payload.u.dl_assignment; + dl_tbf.tfi := f_rlcmac_dl_block_get_tfi(dl_block); + /* TODO: handle GlobalTfiOrTlli tfi_or_tlli from pkt_dl_ass */ + + if (match(dl_block, tr_RLCMAC_DL_PACKET_ASS(?))) { + dl_tbf.tfi := dl_block.ctrl.payload.u.dl_assignment.dl_tfi_assignment; + freq_par_present := dl_block.ctrl.payload.u.dl_assignment.freq_par_present == '1'B; + if (freq_par_present) { + freq_par := dl_block.ctrl.payload.u.dl_assignment.freq_par; + } + dl_tbf.ts_mask := dl_block.ctrl.payload.u.dl_assignment.timeslot_alloc; /* TODO: is this the correct order ? */ + /* TODO: check egprs in dl_assignment.rel_additions (PktDlAssR99Additions) */ + } + + /* FIXME: freq_par and arfcn are optional. in that case we need to + * infer/reuse from current dl_tbf or ul_tbf */ + if (freq_par_present and freq_par.presence == '00'B) { + dl_tbf.arfcn := freq_par.arfcn; + } + return dl_tbf; +} + +function f_ms_tx_TsTrxBtsNum(inout GprsMS ms) +runs on MS_BTS_IFACE_CT return TsTrxBtsNum { + var uint3_t ts_nr := f_ultbf_next_ts(ms.ul_tbf); + + var uint3_t trx_nr; + if (ispresent(ms.ul_tbf.arfcn)) { + trx_nr := f_arfcn2trxnr(ms.ul_tbf.arfcn); + } else { + /* FIXME: implement search by hsn+maio+ma when freq hopping is enabled */ + setverdict(fail, "Asked for trx_nr but arfcn not available in ms.ul_tbf!"); + f_shutdown(__BFILE__, __LINE__); + } + return valueof(ts_TsTrxBtsNum(ts_nr, trx_nr)); +} + +function f_dltbf_num_slots(DlTbf dl_tbf) +runs on MS_BTS_IFACE_CT return integer { + var integer n := 0; + for (var integer i := 0; i < lengthof(dl_tbf.ts_mask); i := i + 1) { + if (dl_tbf.ts_mask[i] == '1'B) { + n := n + 1; + } + } + return n; +} + +function f_dltbf_ack_block(inout DlTbf dl_tbf, RlcmacDlBlock dl_block, BIT1 final_ack := '0'B) +runs on MS_BTS_IFACE_CT { + var boolean is_egprs := ischosen(dl_block.data_egprs); + if (is_egprs) { + f_egprs_acknackdesc_ack_block(dl_tbf.egprs_acknack_desc, dl_block, final_ack); + } else { + f_acknackdesc_ack_block(dl_tbf.acknack_desc, dl_block, final_ack); + } +} + +function f_dltbf_ts_RLCMAC_DL_ACK_NACK(DlTbf dl_tbf, boolean use_egprs := false, + template (omit) ChannelReqDescription chreq_desc := omit) +runs on MS_BTS_IFACE_CT return template (value) RlcmacUlBlock { + if (use_egprs) { + return ts_RLCMAC_DL_ACK_NACK_EGPRS(dl_tbf.tfi, dl_tbf.egprs_acknack_desc, false, chreq_desc); + } else { + return ts_RLCMAC_DL_ACK_NACK(dl_tbf.tfi, dl_tbf.acknack_desc, false, chreq_desc); + } +} + +function f_ultbf_inc_bsn(inout UlTbf ul_tbf) +runs on MS_BTS_IFACE_CT { + ul_tbf.bsn := ul_tbf.bsn + 1; + if (ul_tbf.is_egprs) { + ul_tbf.bsn := ul_tbf.bsn mod 2048; + } else { + ul_tbf.bsn := ul_tbf.bsn mod 128; + } +} + +function f_ultbf_next_ts(UlTbf ul_tbf) +runs on MS_BTS_IFACE_CT return uint3_t { + /* FIXME: in the future we probably want to store last used internally + /* and continue from there */ + for (var integer i := 0; i < lengthof(ul_tbf.ts_mask); i := i + 1) { + if (ul_tbf.ts_mask[i] == '1'B) { + return i; + } + } + setverdict(fail, "No TS available for tx!"); + f_shutdown(__BFILE__, __LINE__); + return 0; +} + +function f_ultbf_num_slots(UlTbf ul_tbf) +runs on MS_BTS_IFACE_CT return integer { + var integer n := 0; + for (var integer i := 0; i < lengthof(ul_tbf.ts_mask); i := i + 1) { + if (ul_tbf.ts_mask[i] == '1'B) { + n := n + 1; + } + } + return n; +} + +function f_ultbf_payload_fill_length(UlTbf ul_tbf, boolean tlli := false, integer li_bytes := 0) +runs on MS_BTS_IFACE_CT return uint32_t { + var uint32_t blk_len := f_rlcmac_cs_mcs2block_len_no_spare_bits(ul_tbf.tx_cs_mcs); + var uint32_t payload_fill_len; + + if (f_rlcmac_cs_mcs_is_mcs(ul_tbf.tx_cs_mcs)) { + payload_fill_len := blk_len - 5 - li_bytes; + } else { + /* GPRS: blk_len = 3 Header bytes + payload length. No LI byte in this case. */ + payload_fill_len := blk_len - 3 - li_bytes; + } + + if (tlli) { + payload_fill_len := payload_fill_len - 4; + } + return payload_fill_len; +} + +function f_ms_use_ra(inout GprsMS ms, uint16_t ra, uint8_t ra_is_11bit := 0) +runs on MS_BTS_IFACE_CT { + ms.ra_is_11bit := ra_is_11bit; + ms.ra := ra; + if (ra_is_11bit == 0) { + ms.burst_type := BURST_TYPE_0; + } else { + ms.burst_type := BURST_TYPE_1; + } +} + +function f_ms_rx_pkt_ass_pacch(inout GprsMS ms, out uint32_t poll_fn, + template RlcmacDlBlock t_pkt_ass := ?, + template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum, + boolean ignore_dummy := true) +runs on MS_BTS_IFACE_CT return RlcmacDlBlock { + var RlcmacDlBlock dl_block; + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + alt { + [] as_ms_rx_pkt_ass_pacch(ms, poll_fn, t_pkt_ass, nr, dl_block); + [ignore_dummy] as_ms_rx_ignore_dummy(ms, nr); + /* TODO: fail */ + [] BTS.receive { + setverdict(fail, "Unexpected BTS message"); + f_shutdown(__BFILE__, __LINE__); + } + } + return dl_block; +} + +altstep as_ms_rx_ignore_dummy(inout GprsMS ms, template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum) +runs on MS_BTS_IFACE_CT { + var BTS_PDTCH_Block data_msg; + [] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + tr_RLCMAC_DL_DUMMY_CTRL())) -> value data_msg { + + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + repeat; + } +} + +altstep as_pcuif_rx_ignore_empty(template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum) +runs on MS_BTS_IFACE_CT { + var BTS_PDTCH_Block data_msg; + [] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + omit)) -> value data_msg { + + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + repeat; + } +} + +altstep as_rx_fail_dummy(template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum) +runs on MS_BTS_IFACE_CT { + var BTS_PDTCH_Block data_msg; + [] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + tr_RLCMAC_DL_DUMMY_CTRL())) -> value data_msg { + setverdict(fail, "Unexpected Dummy Ctrl block ", data_msg); + f_shutdown(__BFILE__, __LINE__); + } +} + +altstep as_ms_rx_pkt_ass_pacch(inout GprsMS ms, out uint32_t poll_fn, + template RlcmacDlBlock t_pkt_ass := ?, + template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum, + out RlcmacDlBlock dl_block) +runs on MS_BTS_IFACE_CT { + var BTS_PDTCH_Block data_msg; + [] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH), + t_pkt_ass)) -> value data_msg { + var uint32_t dl_fn := data_msg.raw.fn; + dl_block := data_msg.dl_block; + poll_fn := f_rrbp_ack_fn(dl_fn, dl_block.ctrl.mac_hdr.rrbp); + + if (match(dl_block, tr_RLCMAC_UL_PACKET_ASS)) { + ms.ul_tbf := f_ultbf_new_from_ass_pacch(dl_block); + if (ms.ul_tbf.ass.pacch.identity.tlli.tlli != ms.tlli) { + setverdict(fail, "Wrong TLLI ", ms.ul_tbf.ass.pacch.identity.tlli, " received vs exp ", ms.tlli); + f_shutdown(__BFILE__, __LINE__); + } + } else if (match(dl_block, tr_RLCMAC_DL_PACKET_ASS)) { + ms.dl_tbf := f_dltbf_new_from_ass_pacch(dl_block); + if (ischosen(ms.dl_tbf.ass.pacch.tfi_or_tlli.tlli) and + ms.dl_tbf.ass.pacch.tfi_or_tlli.tlli.tlli != ms.tlli) { + setverdict(fail, "Wrong TLLI ", ms.dl_tbf.ass.pacch.tfi_or_tlli.tlli.tlli, " received vs exp ", ms.tlli); + f_shutdown(__BFILE__, __LINE__); + } + } else { + setverdict(fail, "Should not happen:", dl_block); + f_shutdown(__BFILE__, __LINE__); + } + } +} + +function f_ms_establish_ul_tbf(inout GprsMS ms, template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum) +runs on MS_BTS_IFACE_CT { + var GsmRrMessage rr_imm_ass; + + rr_imm_ass := f_pcuif_tx_rach_rx_imm_ass(ms.ra, ms.ra_is_11bit, ms.burst_type, ms.ta, nr := nr); + ms.ul_tbf := f_ultbf_new_from_rr_imm_ass(rr_imm_ass); +} + +function f_ms_exp_dl_tbf_ass_ccch(inout GprsMS ms, template PCUIF_Sapi sapi := PCU_IF_SAPI_PCH_2, + template GsmRrMessage t_imm_ass := tr_IMM_TBF_ASS(true, ?, ?), + template (present) TsTrxBtsNum nr := tr_TsTrxBtsNum) +runs on MS_BTS_IFACE_CT { + var GsmRrMessage rr_imm_ass; + + rr_imm_ass := f_pcuif_rx_imm_ass(sapi, t_imm_ass, nr := nr); + ms.dl_tbf := f_dltbf_new_from_rr_imm_ass(rr_imm_ass, tr_PacketDlAssign(ms.tlli)); +} + +/* Enqueue DATA.ind (both TDMA frame and block numbers to be patched) */ +function f_ms_tx_data_ind(inout GprsMS ms, octetstring data, uint32_t fn := 0, + template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum) +runs on MS_BTS_IFACE_CT { + f_pcuif_tx_data_ind(data, fn, ms.ta, ms.lqual_cb, nr := nr); +} + +function f_ms_tx_ul_block(inout GprsMS ms, template (value) RlcmacUlBlock ul_data, + uint32_t fn := 0, template (omit) CodingScheme force_cs_mcs := omit, + template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum) +runs on MS_BTS_IFACE_CT { + var octetstring data; + var CodingScheme cs_mcs; + var uint32_t cs_mcs_len; + + /* Encode the payload of DATA.ind */ + data := enc_RlcmacUlBlock(valueof(ul_data)); + + if (ischosen(ul_data.ctrl)) { + /* Ctrl blocks are right now encoded by RAW encoder, which was + * found to have some issue with final padding, so we add it + * here manually. This is actually still incorrect because the + * remaining bits of last octet with data are not filled with + * the padding sequence, but it's good enough since anyway PCU + * don't check these. */ + data := f_pad_oct(data, f_rlcmac_cs_mcs2block_len(CS_1), '2b'O); + } + /* Enqueue DATA.ind (both TDMA frame and block numbers to be patched) */ + f_ms_tx_data_ind(ms, data, fn, nr := nr); +} + +function f_ms_tx_ul_data_blocks_gprs(inout GprsMS ms, template (value) LlcBlocks blocks, + uint4_t cv := 15, boolean with_tlli := false, uint32_t fn := 0, + template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum) +runs on MS_BTS_IFACE_CT { + var template (value) RlcmacUlBlock ul_data; + + ul_data := t_RLCMAC_UL_DATA(cs := ms.ul_tbf.tx_cs_mcs, + tfi := ms.ul_tbf.tfi, + cv := cv, + bsn := ms.ul_tbf.bsn, + blocks := blocks); + if (with_tlli) { + ul_data.data.mac_hdr.tlli_ind := true; + ul_data.data.tlli := ms.tlli; + } + f_ultbf_inc_bsn(ms.ul_tbf); + f_ms_tx_ul_block(ms, ul_data, fn, nr := nr); +} + +function f_ms_tx_ul_data_blocks_egprs(inout GprsMS ms, template (value) EgprsLlcBlocks blocks, + uint4_t cv := 15, boolean with_tlli := false, uint32_t fn := 0, + template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum) +runs on MS_BTS_IFACE_CT { + var template (value) RlcmacUlBlock ul_data; + + ul_data := t_RLCMAC_UL_EGPRS_DATA(mcs := ms.ul_tbf.tx_cs_mcs, + tfi := ms.ul_tbf.tfi, + cv := cv, + bsn1 := ms.ul_tbf.bsn, + bsn2_offset := 0, + blocks := blocks); + if (with_tlli) { + ul_data.data_egprs.tlli_ind := true; + ul_data.data_egprs.tlli := ms.tlli; + } + f_ultbf_inc_bsn(ms.ul_tbf); + f_ms_tx_ul_block(ms, ul_data, fn, nr := nr); +} + +function f_ms_tx_ul_data_block(inout GprsMS ms, octetstring payload, + uint4_t cv := 15, boolean with_tlli := false, uint32_t fn := 0, + template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum) +runs on MS_BTS_IFACE_CT { + var template (value) RlcmacUlBlock ul_data; + + if (f_rlcmac_cs_mcs_is_mcs(ms.ul_tbf.tx_cs_mcs)) { + f_ms_tx_ul_data_blocks_egprs(ms, {t_RLCMAC_LLCBLOCK_EGPRS(payload)}, cv, with_tlli, fn, nr) + } else { + f_ms_tx_ul_data_blocks_gprs(ms, {t_RLCMAC_LLCBLOCK(payload)}, cv, with_tlli, fn, nr); + } +} + +/* Send random payload for last "num_blocks" blocks in Ul TBF (ending with CV=0). */ +function f_ms_tx_ul_data_block_multi(inout GprsMS ms, integer num_blocks := 1, boolean with_tlli := false, + uint32_t fn := 0, template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum) +runs on MS_BTS_IFACE_CT return octetstring { + var octetstring total_payload := ''O; + var uint32_t payload_fill_len := f_ultbf_payload_fill_length(ms.ul_tbf, with_tlli, 0); + + for (var integer i := 0; i < num_blocks; i := i + 1) { + var octetstring payload := f_rnd_octstring(payload_fill_len); + /* Prepare a new UL block (CV, random payload) */ + var integer cv := num_blocks - i - 1; + if (cv > g_bs_cv_max) { + cv := 15; + } + if (i == 1) { + /* We use FN on i=0 to jump to wanted FN time, then simply submit on next + * available frame (fn=0) */ + fn := 0; + } + f_ms_tx_ul_data_block(ms, payload, cv := cv, with_tlli := with_tlli, fn := fn, nr := nr); + total_payload := total_payload & payload; + } + return total_payload; +} + +function f_rlcmac_dl_block_get_tfi(RlcmacDlBlock dl_block) +runs on MS_BTS_IFACE_CT return uint5_t { + if (ischosen(dl_block.data)) { + return dl_block.data.mac_hdr.hdr_ext.tfi; + } else if (ischosen(dl_block.data_egprs)) { + return dl_block.data_egprs.mac_hdr.tfi; + } else { /* Ctrl block */ + if (match(dl_block, tr_RLCMAC_UL_PACKET_ASS_GPRS(?, tr_PktUlAssGprsDynamic(tr_DynamicAllocation(?))))) { + return dl_block.ctrl.payload.u.ul_assignment.gprs.dyn_block_alloc.ul_tfi_assignment; + } + if (match(dl_block, tr_RLCMAC_UL_PACKET_ASS_EGPRS(?, tr_PktUlAssEgprsDynamic(tr_DynamicAllocation(?))))) { + return dl_block.ctrl.payload.u.ul_assignment.egprs.dyn_block_alloc.ul_tfi_assignment; + } + if (match(dl_block, tr_RLCMAC_DL_PACKET_ASS(?))) { + return dl_block.ctrl.payload.u.dl_assignment.dl_tfi_assignment; + } + } + setverdict(fail, "DlBlock doesn't contain a TFI:", dl_block); + f_shutdown(__BFILE__, __LINE__); + return 0; /* make compiler happy */ +} + +function f_rlcmac_dl_block_get_usf(RlcmacDlBlock dl_block) +runs on MS_BTS_IFACE_CT return uint3_t { + if (ischosen(dl_block.data)) { + return dl_block.data.mac_hdr.mac_hdr.usf; + } else if (ischosen(dl_block.data_egprs)) { + return dl_block.data_egprs.mac_hdr.usf; + } else { /* Ctrl block */ + return dl_block.ctrl.mac_hdr.usf; + } + setverdict(fail, "DlBlock doesn't contain a USF:", dl_block); + f_shutdown(__BFILE__, __LINE__); + return 0; /* make compiler happy */ +} + +/* Get the Chan coding command from a dl block containing PACCH UL Assignment */ +function f_rlcmac_dl_block_get_assigned_ul_cs_mcs(RlcmacDlBlock dl_block) +runs on MS_BTS_IFACE_CT return CodingScheme { + if (match(dl_block, tr_RLCMAC_UL_PACKET_ASS_GPRS(?, tr_PktUlAssGprsDynamic(?)))) { + return f_rlcmac_block_ChCodingCommand2cs_mcs(dl_block.ctrl.payload.u.ul_assignment.gprs.ch_coding_cmd); + } + if (match(dl_block, tr_RLCMAC_UL_PACKET_ASS_EGPRS(?, tr_PktUlAssEgprsDynamic(?)))) { + return f_rlcmac_block_EgprsChCodingCommand2cs_mcs(dl_block.ctrl.payload.u.ul_assignment.egprs.chan_coding_cmd); + } + setverdict(fail, "DlBlock doesn't contain CS_MCS information:", dl_block); + f_shutdown(__BFILE__, __LINE__); + return CS_1; /* make compiler happy */ +} + +/* TS 44.060 sec 12.3 Ack/Nack Description */ +function f_acknackdesc_ack_block(inout AckNackDescription desc, RlcmacDlBlock dl_block, BIT1 final_ack := '0'B) +{ + var uint7_t bsn; + var integer i; + var integer inc; + bsn := dl_block.data.mac_hdr.hdr_ext.bsn; + + /* Filling hole? */ + if (bsn < desc.starting_seq_nr) { + desc.receive_block_bitmap[lengthof(desc.receive_block_bitmap) - (desc.starting_seq_nr - bsn)] := int2bit(1, 1); + return; + } + /* Filling hole, wraparound: */ + if (bsn - desc.starting_seq_nr > lengthof(desc.receive_block_bitmap)) { + desc.receive_block_bitmap[lengthof(desc.receive_block_bitmap) - (desc.starting_seq_nr + (218 - bsn))] := int2bit(1, 1); + return; + } + + inc := bsn - desc.starting_seq_nr + 1; + + /* SSN is increased, and so RBB values need to be moved */ + for (i := 0; i < lengthof(desc.receive_block_bitmap) - inc; i := i+1) { + desc.receive_block_bitmap[i] := desc.receive_block_bitmap[i + inc]; + } + for (i := lengthof(desc.receive_block_bitmap) - inc; i < lengthof(desc.receive_block_bitmap) - 1; i := i+1) { + desc.receive_block_bitmap[i] := int2bit(0, 1); + } + /* Now we can set current bit and update SSN */ + desc.starting_seq_nr := (bsn + 1) mod 128; + desc.receive_block_bitmap[lengthof(desc.receive_block_bitmap) - 1] := int2bit(1, 1); + + /* Finally update the final_ack bit as requested: */ + desc.final_ack := final_ack; +} + +/* TS 44.060 sec 12.3 Ack/Nack Description */ +function f_egprs_acknackdesc_ack_block(inout EgprsAckNackDescription desc, RlcmacDlBlock dl_block, BIT1 final_ack := '0'B) +{ + var uint11_t bsn; + var integer i; + var integer inc; + var integer n := 0; + var integer v_q := (desc.starting_seq_nr + 2047) mod 2048; /* SSN = V(Q) + 1 */ + + bsn := dl_block.data_egprs.mac_hdr.bsn1; + + /* Repetition? */ + if (bsn < v_q) { + /* Filling hole, wraparound: */ + if (bsn - v_q > lengthof(desc.urbb)) { + desc.urbb[lengthof(desc.urbb) - (v_q + (2048 - bsn))] := int2bit(1, 1); + return; + } + return; + } + + inc := bsn - v_q + 1; + desc.urbb[lengthof(desc.urbb) - inc] := int2bit(1, 1); + + for (i := lengthof(desc.urbb) - 1; i >= lengthof(desc.urbb) - inc; i := i - 1) { + if (desc.urbb[i] == '0'B) { + break; + } + n := n + 1; + } + + if (n > 0) { + /* SSN is increased, and so RBB values need to be moved */ + for (i := lengthof(desc.urbb) - 1; i >= n; i := i - 1) { + desc.urbb[i] := desc.urbb[i - n]; + } + for (i := n - 1; i >= 0; i := i - 1) { + desc.urbb[i] := int2bit(0, 1); + } + + desc.starting_seq_nr := (desc.starting_seq_nr + n) mod 2048; + } + + /* Finally update the final_ack bit as requested: */ + desc.final_ack := final_ack; +} + +/* This function can be used to send DATA.cnf in response to the IUT originated DATA.req. */ +function f_pcuif_tx_data_cnf(in BTS_CCCH_Block data_msg) +runs on MS_BTS_IFACE_CT { + var PCUIF_data_cnf cnf := { + sapi := data_msg.raw.sapi, + msg_id := data_msg.msg_id + }; + + var PCUIF_Message pcu_msg_cnf := { + msg_type := PCU_IF_MSG_DATA_CNF_2, + bts_nr := data_msg.bts_nr, + spare := '0000'O, + u := { data_cnf2 := cnf} + }; + + BTS.send(pcu_msg_cnf); +} + +private function f_ms_gtfi_tmpl(inout GprsMS ms) +runs on MS_BTS_IFACE_CT return template (present) GlobalTfi { + var template (present) GlobalTfi gtfi; + if (ispresent(ms.ul_tbf) and ispresent(ms.dl_tbf)) { + gtfi := ({ is_dl_tfi := false, tfi := ms.ul_tbf.tfi }, + { is_dl_tfi := true, tfi := ms.dl_tbf.tfi }); + } else if (ispresent(ms.ul_tbf)) { + gtfi := { is_dl_tfi := false, tfi := ms.ul_tbf.tfi }; + } else if (ispresent(ms.dl_tbf)) { + gtfi := { is_dl_tfi := true, tfi := ms.dl_tbf.tfi }; + } else { + gtfi := ?; + } + return gtfi; +} + +altstep as_ms_rx_pkt_neighbor_cell_data(inout GprsMS ms, octetstring exp_si, + inout uint5_t exp_container_idx /* := 0 */, + inout integer si_offset /* := 0 */, + template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum, + boolean single_step := false) +runs on MS_BTS_IFACE_CT { + var integer len; + var octetstring exp_si_chunk; + var template (present) GlobalTfi gtfi := f_ms_gtfi_tmpl(ms); + var BTS_PDTCH_Block data_msg; + var boolean do_repeat := true; + + [] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + tr_RLCMAC_DL_CTRL(?, tr_RlcMacDlCtrl_PKT_NEIGH_CELL_DATA(gtfi, exp_container_idx)) + )) -> value data_msg { + + var PacketNeighbourCellData neigh_data := data_msg.dl_block.ctrl.payload.u.neighbour_cell_data; + var PacketNeighbourCellDataContainer cont := neigh_data.container_list[0]; + + if (cont.cd_length == 31) { /* continues on next message */ + len := lengthof(cont.container_data); + exp_si_chunk := substr(exp_si, si_offset, len); + if (cont.container_data != exp_si_chunk) { + setverdict(fail, "Rx unexpected SI chunk at offset ", si_offset, ": ", + cont.container_data, " vs exp ", exp_si_chunk); + f_shutdown(__BFILE__, __LINE__); + } + si_offset := si_offset + len; + } else if (cont.cd_length == 0) { + /* we are done */ + if (si_offset != lengthof(exp_si)) { + setverdict(fail, "Rx unexpectd SI length ", si_offset, + " vs exp ", lengthof(exp_si)); + f_shutdown(__BFILE__, __LINE__); + } + do_repeat := false; + } else { /* data length, last message */ + len := cont.cd_length; + exp_si_chunk := substr(exp_si, si_offset, len); + if (cont.container_data != exp_si_chunk) { + setverdict(fail, "Rx unexpected SI chunk at offset ", si_offset, ": ", + cont.container_data, " vs exp ", exp_si_chunk); + f_shutdown(__BFILE__, __LINE__); + } + si_offset := si_offset + len; + /* we are done */ + if (si_offset != lengthof(exp_si)) { + setverdict(fail, "Rx unexpectd SI length ", si_offset, + " vs exp ", lengthof(exp_si)); + f_shutdown(__BFILE__, __LINE__); + } + do_repeat := false; + } + + exp_container_idx := exp_container_idx + 1; + + if (not single_step and do_repeat) { + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + repeat; + } + } +} + +/* Handle groups of PKT NEIGHBOUR CELL DATA packets */ +function f_ms_handle_pkt_neighbor_cell_data(inout GprsMS ms, octetstring exp_si, + template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum, + uint5_t exp_container_idx := 0, + integer si_offset := 0, + boolean single_step := false) +runs on MS_BTS_IFACE_CT { + var BTS_PDTCH_Block data_msg; + + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + alt { + [exp_container_idx == 0] as_ms_rx_ignore_dummy(ms, nr); + [exp_container_idx > 0] as_rx_fail_dummy(nr); + [] as_ms_rx_pkt_neighbor_cell_data(ms, exp_si, exp_container_idx, si_offset, nr, single_step); + [] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + tr_RLCMAC_DL_CTRL(?, ?))) -> value data_msg { + var GlobalTfi gtfi := { is_dl_tfi := false, tfi := ms.ul_tbf.tfi }; + setverdict(fail, "Rx unexpected DL block: ", data_msg.dl_block, " vs exp ", + tr_RLCMAC_DL_CTRL(?, tr_RlcMacDlCtrl_PKT_NEIGH_CELL_DATA(gtfi, exp_container_idx))); + f_shutdown(__BFILE__, __LINE__); + } + }; + + return; +} + +/* Keep receiving & discarding DL blocks until the PCU requests USF for this MS */ +function f_ms_wait_usf(inout GprsMS ms, template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum) +runs on MS_BTS_IFACE_CT return uint32_t { + var BTS_PDTCH_Block data_msg; + + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + alt { + [] as_pcuif_rx_ignore_empty(nr); + [] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + ?)) -> value data_msg { + var uint3_t rx_usf := f_rlcmac_dl_block_get_usf(data_msg.dl_block); + var uint3_t exp_usf := ms.ul_tbf.usf[valueof(nr.ts_nr)]; + log("Rx DL block USF ", rx_usf, " vs exp USF ", exp_usf); + if (rx_usf != exp_usf) { + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + repeat; + } + } + }; + + return data_msg.raw.fn; +} + +//////////////////////// +// Low level APIs +//////////////////////// + +altstep as_rx_ptcch(out BTS_PTCCH_Block ret_msg, template (present) PTCCHDownlinkMsg msg := ?, + template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum, boolean do_repeat := false) +runs on MS_BTS_IFACE_CT { + [] BTS.receive(tr_PCUIF_DATA_PTCCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PTCCH), + msg)) -> value ret_msg { + if (do_repeat) { + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PTCCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)) + repeat; + } + } +} + +altstep as_ms_rx_imm_ass(template PCUIF_Sapi sapi := PCU_IF_SAPI_AGCH_2, + template GsmRrMessage t_imm_ass := ?, + template (present) TsTrxBtsNum nr := ts_TsTrxBtsNum, + out GsmRrMessage rr_imm_ass) +runs on MS_BTS_IFACE_CT { + var BTS_CCCH_Block data_msg; + [] BTS.receive(tr_PCUIF_DATA_RR(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, 0, sapi := sapi), + t_imm_ass)) -> value data_msg { + rr_imm_ass := data_msg.rr_msg; + log("Rx Immediate Assignment: ", rr_imm_ass); + /* Send DATA.cnf back to the IUT */ + if (ispresent(data_msg.confirm) and data_msg.confirm) { + f_pcuif_tx_data_cnf(data_msg); + } + setverdict(pass); + } +} + +function f_pcuif_rx_imm_ass(template PCUIF_Sapi sapi := PCU_IF_SAPI_AGCH_2, + template GsmRrMessage t_imm_ass := ?, + template (present) TsTrxBtsNum nr := tr_TsTrxBtsNum) +runs on MS_BTS_IFACE_CT return GsmRrMessage { + var GsmRrMessage rr_imm_ass; + timer T; + + T.start(2.0); + alt { + [] as_ms_rx_imm_ass(sapi, t_imm_ass, nr, rr_imm_ass); + [] BTS.receive { repeat; } /* TODO: use as_ms_rx_ignore_dummy instead? */ + [] T.timeout { + setverdict(fail, "Timeout waiting for Immediate Assignment"); + f_shutdown(__BFILE__, __LINE__); + } + } + + return rr_imm_ass; +} + +/* One phase packet access (see 3GPP TS 44.018, table 9.1.8.1) */ +const BIT8 chan_req_def := '01111000'B; /* 01111 { 0xx | x0x | xx0 } */ +/* Single block (two phase or RR signalling) packet access */ +const BIT8 chan_req_sb := '01110000'B; /* 01110xxx */ + +/* Establish an Uplink TBF by sending RACH.ind towards the PCU */ +function f_pcuif_tx_rach_rx_imm_ass(uint16_t ra := bit2int(chan_req_def), + uint8_t is_11bit := 0, + PCUIF_BurstType burst_type := BURST_TYPE_0, + TimingAdvance ta := 0, + template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum) +runs on MS_BTS_IFACE_CT return GsmRrMessage { + var uint32_t fn; + + /* FIXME: ask the BTS component to give us the current TDMA fn */ + fn := 1337 + ta; + + /* Send RACH.ind */ + log("Sending RACH.ind on fn=", fn, " with RA=", ra, ", TA=", ta); + BTS.send(ts_PCUIF_RACH_IND(nr.bts_nr, nr.trx_nr, ts_nr := 0, + ra := ra, is_11bit := is_11bit, + burst_type := burst_type, + fn := fn, arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + qta := ta * 4)); + + /* 3GPP TS 44.018, table 9.1.8.1, note 2b: Request Reference shall be set to 127 + * when Immediate Assignment is triggered by EGPRS Packet Channel Request. Here + * we assume that 11 bit RA always contains EGPRS Packet Channel Request. */ + if (is_11bit != 0) { ra := 127; } + + /* Expect Immediate (TBF) Assignment on the same TS/TRX/BTS */ + return f_pcuif_rx_imm_ass(PCU_IF_SAPI_AGCH_2, tr_IMM_TBF_ASS(false, ra, fn), nr); +} + +/* Enqueue DATA.ind (both TDMA frame and block numbers to be patched) */ +function f_pcuif_tx_data_ind(octetstring data, uint32_t fn := 0, + TimingAdvance ta := 0, int16_t lqual_cb := 0, + template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum) +runs on MS_BTS_IFACE_CT { + var template RAW_PCU_EventParam ev_param := {tdma_fn := ? }; + BTS.send(ts_PCUIF_DATA_IND(nr.bts_nr, nr.trx_nr, nr.ts_nr, nr.blk_nr, + sapi := PCU_IF_SAPI_PDTCH, data := data, + fn := fn, arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + ta_offs_qbits := ta * 4, lqual_cb := lqual_cb)); + if (fn != 0) { + ev_param := {tdma_fn := fn }; + } + BTS.receive(tr_RAW_PCU_EV(TDMA_EV_PDTCH_BLOCK_SENT, ev_param)); +} + +/* Enqueue RTS.req, expect DATA.req with UL ACK from the PCU */ +function f_pcuif_rx_data_req_pdtch(out BTS_PDTCH_Block data_msg, + template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum) +runs on MS_BTS_IFACE_CT { + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), block_nr := nr.blk_nr)); + + BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), *) + ) -> value data_msg; +} + +/* Expect a Paging Request Type 1 from PCU on PCUIF on specified sapi. */ +function f_pcuif_rx_pch_pag_req1(template MobileIdentityV mi1 := ?, + template integer pag_group := ?, + template (present) TsTrxBtsNum nr := tr_TsTrxBtsNum) +runs on MS_BTS_IFACE_CT return GsmRrMessage { + var GsmRrMessage rr_pag_req1; + var octetstring imsi_suff_octstr; + var integer pag_group_rx; + + var BTS_CCCH_Block data_msg; + BTS.receive(tr_PCUIF_DATA_RR(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PCH_2), + tr_PAG_REQ1(tr_MI_LV(mi1)))) -> value data_msg; + rr_pag_req1 := data_msg.rr_msg; + log("Rx Paging Request Type1: ", rr_pag_req1); + + /* The last 3 digits of the IMSI are used to calculate paging group: */ + imsi_suff_octstr := substr(char2oct(data_msg.imsi), lengthof(data_msg.imsi) - 3, 3); + pag_group_rx := str2int(oct2char(imsi_suff_octstr[0])) * 100 + + str2int(oct2char(imsi_suff_octstr[1])) * 10 + + str2int(oct2char(imsi_suff_octstr[2])); + + /* Make sure that received paging froup matches the expected one */ + if (not match(pag_group_rx, pag_group)) { + setverdict(fail, "Paging group", pag_group_rx, " does not match expected ", pag_group); + f_shutdown(__BFILE__, __LINE__); + } + + /* Send DATA.cnf back to the IUT */ + if (ispresent(data_msg.confirm) and data_msg.confirm) { + f_pcuif_tx_data_cnf(data_msg); + } + return rr_pag_req1; +} + +function f_rx_rlcmac_dl_block(out RlcmacDlBlock dl_block, out uint32_t dl_fn, + template (present) CodingScheme exp_cs_mcs := ?, + template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum) +runs on MS_BTS_IFACE_CT { + var BTS_PDTCH_Block data_msg; + f_pcuif_rx_data_req_pdtch(data_msg, nr := nr); + + if (data_msg.dl_block == omit) { + setverdict(fail, "Expected RLCMAC block but received idle block (", data_msg.raw.len, ")"); + f_shutdown(__BFILE__, __LINE__); + } + + dl_block := data_msg.dl_block; + dl_fn := data_msg.raw.fn; + + var integer len := lengthof(data_msg.raw.data); + var CodingScheme cs_mcs := f_rlcmac_block_len2cs_mcs(len) + if (not match(f_rlcmac_block_len2cs_mcs(len), exp_cs_mcs)) { + setverdict(fail, "Failed to match Coding Scheme exp ", exp_cs_mcs, " vs ", cs_mcs, " (", len, ")"); + f_shutdown(__BFILE__, __LINE__); + } +} + +function f_rx_rlcmac_dl_block_exp_ack_nack(out RlcmacDlBlock dl_block, out uint32_t poll_fn, + template RlcmacDlBlock acknack_tmpl := (tr_RLCMAC_UL_ACK_NACK_GPRS(ul_tfi := ?), + tr_RLCMAC_UL_ACK_NACK_EGPRS(ul_tfi := ?)), + template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum) +runs on MS_BTS_IFACE_CT { + var uint32_t dl_fn; + + f_rx_rlcmac_dl_block(dl_block, dl_fn, nr := nr); + if (match(dl_block, acknack_tmpl)) { + poll_fn := f_rrbp_ack_fn(dl_fn, dl_block.ctrl.mac_hdr.rrbp); + return; + } + setverdict(fail, "Failed to match Packet Uplink ACK / NACK:", dl_block); + f_shutdown(__BFILE__, __LINE__); +} + +function f_rx_rlcmac_dl_block_exp_dummy(out RlcmacDlBlock dl_block, + template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum) +runs on MS_BTS_IFACE_CT return uint32_t { + var uint32_t dl_fn; + + f_rx_rlcmac_dl_block(dl_block, dl_fn, nr := nr); + if (not match(dl_block, tr_RLCMAC_DL_DUMMY_CTRL())) { + setverdict(fail, "Failed to match Packet DUMMY DL"); + f_shutdown(__BFILE__, __LINE__); + } + return dl_fn; +} + +/* Keep getting dl_block until first non RLCMAC Dummy is received, then return it */ +function f_rx_rlcmac_dl_block_skip_dummy(out RlcmacDlBlock dl_block, + integer max_dummy := -1, + template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum) +runs on MS_BTS_IFACE_CT return uint32_t { + var integer i := 0; + var uint32_t dl_fn; + + while (true) { + f_rx_rlcmac_dl_block(dl_block, dl_fn, nr := nr); + if (not match(dl_block, tr_RLCMAC_DL_DUMMY_CTRL)) { + /* Received first data, starting processing: */ + break; + } + i := i + 1; + if (max_dummy >= 0 and i > max_dummy) { + setverdict(fail, "Didn't receive DL data after receiving ", i, " dummy blocks"); + f_shutdown(__BFILE__, __LINE__); + break; + } + } + return dl_fn; +} + +function f_rx_rlcmac_dl_block_exp_pkt_pag_req(out RlcmacDlBlock dl_block, + template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum) +runs on MS_BTS_IFACE_CT { + var uint32_t dl_fn; + + f_rx_rlcmac_dl_block(dl_block, dl_fn, nr := nr); + if (not match(dl_block, tr_RLCMAC_PACKET_PAG_REQ())) { + setverdict(fail, "Failed to match Packet Paging Request: ", dl_block, " vs ", tr_RLCMAC_PACKET_PAG_REQ()); + f_shutdown(__BFILE__, __LINE__); + } +} + +/* This function does what could probably be done with templates */ +function f_rlcmac_dl_block_verify_data_gprs(in RlcmacDlDataBlock data_block, + template (present) octetstring data := ?, + template (present) uint7_t exp_bsn := ?, + template (present) CodingScheme exp_cs := ?) +runs on MS_BTS_IFACE_CT { + if (not match(data_block.mac_hdr.hdr_ext.bsn, exp_bsn)) { + setverdict(fail, "DL block BSN doesn't match: ", + data_block.mac_hdr.hdr_ext.bsn, " vs exp ", exp_bsn); + f_shutdown(__BFILE__, __LINE__); + } + + if (lengthof(data_block.blocks) < 1) { + setverdict(fail, "DL block has no LLC payload: ", data_block); + f_shutdown(__BFILE__, __LINE__); + } + + if (not match(data_block.blocks[0].payload, data)) { + setverdict(fail, "Failed to match content of LLC payload in DL Block: ", + data_block.blocks[0].payload, " vs ", data); + f_shutdown(__BFILE__, __LINE__); + } + + if (not match(data_block.cs, exp_cs)) { + setverdict(fail, "Failed to match ", data_block.cs, " vs exp ", exp_cs); + f_shutdown(__BFILE__, __LINE__); + } +} + +/* This function does what could probably be done with templates */ +function f_rlcmac_dl_block_verify_data_egprs(in RlcmacDlEgprsDataBlock data_block, + template (present) octetstring data := ?, + template (present) uint14_t exp_bsn := ?, + template (present) CodingScheme exp_cs := ?) +runs on MS_BTS_IFACE_CT { + if (not match(data_block.mac_hdr.bsn1, exp_bsn)) { + setverdict(fail, "DL block BSN doesn't match: ", + data_block.mac_hdr.bsn1, " vs exp ", exp_bsn); + } + + if (lengthof(data_block.blocks) < 1) { + setverdict(fail, "DL block has no LLC payload: ", data_block); + f_shutdown(__BFILE__, __LINE__); + } + + if (not match(data_block.blocks[0].payload, data)) { + setverdict(fail, "Failed to match content of LLC payload in DL Block: ", + data_block.blocks[0].payload, " vs ", data); + f_shutdown(__BFILE__, __LINE__); + } + + if (not match(data_block.mcs, exp_cs)) { + setverdict(fail, "Failed to match ", data_block.mcs, " vs exp ", exp_cs); + f_shutdown(__BFILE__, __LINE__); + } +} + +/* High level (task specific) helper for matching GPRS/EGPRS data blocks */ +function f_rlcmac_dl_block_exp_data(in RlcmacDlBlock dl_block, + template (present) octetstring data := ?, + template (present) uint7_t exp_bsn := ?, + template (present) CodingScheme exp_cs := ?) +runs on MS_BTS_IFACE_CT { + /* Make sure it's either GPRS or EGPRS data block */ + if (not match(dl_block, tr_RLCMAC_DATA)) { + setverdict(fail, "Failed to match DL DATA: ", dl_block, " vs ", tr_RLCMAC_DATA); + f_shutdown(__BFILE__, __LINE__); + } + + if (ischosen(dl_block.data_egprs)) { + f_rlcmac_dl_block_verify_data_egprs(dl_block.data_egprs, data, exp_bsn, exp_cs); + } else if (ischosen(dl_block.data)) { + f_rlcmac_dl_block_verify_data_gprs(dl_block.data, data, exp_bsn, exp_cs); + } else { + /* Should not happen, but the caller may theoretically give us a template for CTRL */ + setverdict(fail, "DL block is neither GPRS nor EGPRS data block: ", dl_block); + f_shutdown(__BFILE__, __LINE__); + } +} + +/* High level (task specific) helper for receiving and matching GPRS/EGPRS data blocks */ +function f_rx_rlcmac_dl_block_exp_data(out RlcmacDlBlock dl_block, out uint32_t dl_fn, + template (present) octetstring data := ?, + template (present) uint7_t exp_bsn := ?, + template (present) CodingScheme exp_cs := ?, + template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum) +runs on MS_BTS_IFACE_CT { + /* FIXME: ideally we should use an alt statement with timeout here, rather than + * having +100500 layers of abstraction. This would facilitate developing the + * multi-TBF/-TRX/-BTS tests, where you cannot expect that the first received + * block is exactly what you need. */ + f_rx_rlcmac_dl_block(dl_block, dl_fn, nr := nr); + + f_rlcmac_dl_block_exp_data(dl_block, data, exp_bsn, exp_cs); +} + +function f_dl_block_ack_fn(in RlcmacDlBlock dl_block, uint32_t dl_fn) +runs on MS_BTS_IFACE_CT return uint32_t { + var boolean rrbp_valid; + var MacRrbp rrbp; + + /* The argument must be either a GPRS or EGPRS data block */ + if (ischosen(dl_block.data_egprs)) { + rrbp_valid := dl_block.data_egprs.mac_hdr.esp != '00'B; + rrbp := dl_block.data_egprs.mac_hdr.rrbp; + } else if (ischosen(dl_block.data)) { + rrbp_valid := dl_block.data.mac_hdr.mac_hdr.rrbp_valid; + rrbp := dl_block.data.mac_hdr.mac_hdr.rrbp; + } else { + rrbp_valid := dl_block.ctrl.mac_hdr.rrbp_valid; + rrbp := dl_block.ctrl.mac_hdr.rrbp; + } + + /* Make sure that the given block really needs to be ACKnowledged */ + if (not rrbp_valid) { + setverdict(fail, "DL block shall not be ACKnowledged, field RRBP is not valid"); + f_shutdown(__BFILE__, __LINE__); + } + + return f_rrbp_ack_fn(dl_fn, rrbp); +} + +function f_dl_block_rrbp_valid(in RlcmacDlBlock dl_block) +runs on MS_BTS_IFACE_CT return boolean { + if (ischosen(dl_block.data_egprs)) { + return dl_block.data_egprs.mac_hdr.esp != '00'B; + } else if (ischosen(dl_block.data)) { + return dl_block.data.mac_hdr.mac_hdr.rrbp_valid; + } else { + return dl_block.ctrl.mac_hdr.rrbp_valid; + } +} + +/* Return true if a given Packet Paging Request contains the given IMSI, false otherwise */ +function f_pkt_paging_match_imsi(in PacketPagingReq req, template (present) hexstring imsi, + boolean cs_domain := true, boolean ps_domain := true) +runs on MS_BTS_IFACE_CT return boolean { + if (not ispresent(req.repeated_pageinfo)) { + setverdict(fail, "Packet Paging Request without MIs?!?"); + f_shutdown(__BFILE__, __LINE__); + } + + for (var integer i := 0; i < lengthof(req.repeated_pageinfo); i := i + 1) { + var PageInfo info := req.repeated_pageinfo[i].item; + var MobileIdentityLV_Paging mi_lv; + + if (ischosen(info.cs)) { /* CS domain */ + if (not ispresent(info.cs.mobile_identity)) + { continue; } + if (not cs_domain) + { continue; } + mi_lv := info.cs.mobile_identity; + } else { /* PS domain */ + if (not ispresent(info.ps.mobile_identity)) + { continue; } + if (not ps_domain) + { continue; } + mi_lv := info.ps.mobile_identity; + } + + /* Make sure MI contains IMSI before referencing it */ + if (match(mi_lv.mobile_id, decmatch tr_MI_IMSI(imsi))) { + return true; + } + } + + return false; +} + +/* Return true if a given Packet Paging Request contains the given P-TMSI, false otherwise */ +function f_pkt_paging_match_tmsi(in PacketPagingReq req, template GsmTmsi tmsi, + boolean cs_domain := true, boolean ps_domain := true) +runs on MS_BTS_IFACE_CT return boolean { + if (not ispresent(req.repeated_pageinfo)) { + setverdict(fail, "Packet Paging Request without MIs?!?"); + f_shutdown(__BFILE__, __LINE__); + } + + for (var integer i := 0; i < lengthof(req.repeated_pageinfo); i := i + 1) { + var PageInfo info := req.repeated_pageinfo[i].item; + + if (cs_domain and ischosen(info.cs)) { + if (not ispresent(info.cs.tmsi)) + { continue; } + if (match(info.cs.tmsi, tmsi)) + { return true; } + } else if (ps_domain) { + if (not ispresent(info.ps.ptmsi)) + { continue; } + if (match(info.ps.ptmsi, tmsi)) + { return true; } + } + } + + return false; +} + +} diff --git a/pcu/GPRS_TBF.ttcn b/pcu/GPRS_TBF.ttcn index 1c9a75b5..3794410b 100644 --- a/pcu/GPRS_TBF.ttcn +++ b/pcu/GPRS_TBF.ttcn @@ -14,8 +14,10 @@ module GPRS_TBF { import from GSM_Types all; import from Osmocom_Types all; import from General_Types all; -import from RLCMAC_Types all; +import from Misc_Helpers all; import from RLCMAC_CSN1_Types all; +import from RLCMAC_Types all; +import from RLCMAC_Templates all; import from LLC_Types all; import from GPRS_Context all; @@ -325,10 +327,10 @@ function f_ul_tbf_get_next_block(out RlcmacUlBlock blk, inout UlTbfState us, ino /* include TLLI when needed */ if (tlli_needed) { - blk := valueof(t_RLCMAC_UL_DATA_TLLI(us.tfi, cv, us.et.v_s, + blk := valueof(t_RLCMAC_UL_DATA_TLLI(CS_1, us.tfi, cv, us.et.v_s, llc_blocks, false, mmctx.tlli)); } else { - blk := valueof(t_RLCMAC_UL_DATA(us.tfi, cv, us.et.v_s, llc_blocks, false)); + blk := valueof(t_RLCMAC_UL_DATA(CS_1, us.tfi, cv, us.et.v_s, llc_blocks, false)); } /* Increment Block Sequence Number */ @@ -408,8 +410,9 @@ function f_dl_tbf_mod_sns(DlTbfState ds, integer val) return integer } function f_dl_tbf_is_in_window(integer bsn) return boolean { - setverdict(fail, "pleaes implement me"); - mtc.stop; + Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, + "please implement me"); + return false; } function f_dl_tbf_is_received(inout DlTbfState ds, integer bsn) return boolean { diff --git a/pcu/PCUIF_RAW_Components.ttcn b/pcu/PCUIF_Components.ttcn index ab8b3b75..6e956ba8 100644 --- a/pcu/PCUIF_RAW_Components.ttcn +++ b/pcu/PCUIF_Components.ttcn @@ -1,4 +1,4 @@ -module PCUIF_RAW_Components { +module PCUIF_Components { /* * Components for (RAW) PCU test cases. @@ -19,6 +19,11 @@ import from UD_Types all; import from PCUIF_Types all; import from PCUIF_CodecPort all; +import from Osmocom_Types all; +import from General_Types all; +import from RLCMAC_Types all; +import from GSM_RR_Types all; + /* Component communication diagram: * * +-----+ +----------+ +---------+ @@ -100,6 +105,7 @@ template RAW_PCU_Event tr_RAW_PCU_CLCK_EV := { /* Commands are mostly used by the MTC to configure the components * at run-time, e.g. to enable or disable some optional features. */ type enumerated RAW_PCU_CommandType { + GENERAL_CMD_SHUTDOWN, /*!< Shut down component and all its child components */ TDMA_CMD_ENABLE_PTCCH_UL_FWD /*!< Enable forwarding of TDMA_EV_PTCCH_UL_BURST to the MTC */ }; @@ -118,11 +124,63 @@ template RAW_PCU_Command tr_RAW_PCU_CMD(template RAW_PCU_CommandType cmd := ?, data := data } +/* PCUIF req_data containing decoded rlcmac/rr, for users to be able to match + * directly on receive() + */ +type record BTS_PDTCH_Block { + uint8_t bts_nr, + PCUIF_data raw, + RlcmacDlBlock dl_block optional +}; +type record BTS_PTCCH_Block { + uint8_t bts_nr, + PCUIF_data raw, + PTCCHDownlinkMsg dl_block optional +}; +type record BTS_CCCH_Block { + uint8_t bts_nr, + PCUIF_data raw, + OCT4 msg_id optional, + charstring imsi optional, + GsmRrMessage rr_msg, + boolean confirm optional +}; +template BTS_PDTCH_Block tr_PCUIF_DATA_PDTCH(template uint8_t bts_nr, + template PCUIF_data raw, + template RlcmacDlBlock dl_block := ?) := { + bts_nr := bts_nr, + raw := raw, + dl_block := dl_block +}; +template BTS_PTCCH_Block tr_PCUIF_DATA_PTCCH(template uint8_t bts_nr, + template PCUIF_data raw, + template PTCCHDownlinkMsg dl_block := ?) := { + bts_nr := bts_nr, + raw := raw, + dl_block := dl_block +}; +template BTS_CCCH_Block tr_PCUIF_DATA_RR(template uint8_t bts_nr, + template PCUIF_data raw, + template GsmRrMessage rr_msg := ?, + template OCT4 msg_id := *, + template charstring imsi := *, + template boolean confirm := *) := { + bts_nr := bts_nr, + raw := raw, + msg_id := msg_id, + imsi := imsi, + rr_msg := rr_msg, + confirm := confirm +}; + /* Generic port for messages and events */ type port RAW_PCU_MSG_PT message { inout RAW_PCU_Command; inout RAW_PCU_Event; inout PCUIF_Message; + inout BTS_PDTCH_Block; + inout BTS_PTCCH_Block; + inout BTS_CCCH_Block; } with { extension "internal" }; /* TDMA frame clock generator */ @@ -164,10 +222,12 @@ function f_tdma_ptcch_fn2ss(integer fn) return integer return ss; } -function f_ClckGen_CT_handler() +function f_ClckGen_CT_handler(integer start_fn := 0) runs on RAW_PCU_ClckGen_CT { var integer fn104, fn52, fn13; + fn := start_fn; + while (true) { fn104 := fn mod 104; fn52 := fn mod 52; @@ -228,6 +288,18 @@ private function f_PCUIF_MsgQueue_dequeue(inout PCUIF_MsgQueue queue, } } +/* Get first message from queue. true if non-empty, false otherwise */ +private function f_PCUIF_MsgQueue_first(inout PCUIF_MsgQueue queue, + out PCUIF_Message msg) return boolean +{ + if (lengthof(queue) == 0) { + return false; + } + + msg := queue[0]; + return true; +} + /* Multiple base stations can be connected to the PCU. This component * represents one BTS with an associated TDMA clock generator. */ type component RAW_PCU_BTS_CT { @@ -248,15 +320,24 @@ type component RAW_PCU_BTS_CT { /* Whether to forward PTCCH/U burst events to the TC */ var boolean cfg_ptcch_burst_fwd := false; + + var PCUIF_info_ind g_info_ind; } +/* Queue received messages from Test Case, they will eventually be scheduled and + * sent according to their FN. FN value of 0 has the special meaning of "schedule + * as soon as possible". */ private altstep as_BTS_CT_MsgQueue(integer bts_nr) runs on RAW_PCU_BTS_CT { var PCUIF_Message pcu_msg; /* Enqueue DATA.ind and RTS.req messages */ [] TC.receive(tr_PCUIF_MSG(PCU_IF_MSG_DATA_IND, bts_nr)) -> value pcu_msg { - f_PCUIF_MsgQueue_enqueue(pdtch_data_queue, pcu_msg); + if (pcu_msg.u.data_ind.sapi == PCU_IF_SAPI_BCCH) { + PCUIF.send(pcu_msg); /* Forward directly ASAP */ + } else { + f_PCUIF_MsgQueue_enqueue(pdtch_data_queue, pcu_msg); + } repeat; } [] TC.receive(tr_PCUIF_RTS_REQ(bts_nr, sapi := PCU_IF_SAPI_PDTCH)) -> value pcu_msg { @@ -274,10 +355,91 @@ runs on RAW_PCU_BTS_CT { } } +/* Submit empty data on any available TS, to set up initial TDMA clock */ +private function f_tx_first_data_ind(integer bts_nr, PCUIF_info_ind info_ind, integer start_fn) +runs on RAW_PCU_BTS_CT +{ + var PCUIF_Message pcu_msg; + + /* Find an active TS: */ + for (var uint8_t ts_nr := 0; ts_nr < 8; ts_nr := ts_nr + 1) { + for (var integer trx_nr := 0; trx_nr < lengthof(g_info_ind.trx); trx_nr := trx_nr + 1) { + if (g_info_ind.trx[trx_nr].pdch_mask[ts_nr] == '0'B) { + continue; /* TRX+TS not activated */ + } + + /* Send empty DATA.ind to set up FN */ + pcu_msg := valueof(ts_PCUIF_DATA_IND(bts_nr, trx_nr, ts_nr, 0 /* FIXME */, + PCU_IF_SAPI_PDTCH, ''O, start_fn, + g_info_ind.trx[trx_nr].arfcn, + rssi := -80, ber10k := 0, + ta_offs_qbits := 0, lqual_cb := 10)); + PCUIF.send(pcu_msg); + return; + } + } +} + +private function fn2macblock(uint32_t fn) return uint8_t +{ + return (fn mod 52) / 4; +} + +/* Get first message from queue. true if non-empty, false otherwise */ +private function f_tx_data_ind_fn(integer bts_nr, integer fn) +runs on RAW_PCU_BTS_CT +{ + var PCUIF_Message pcu_msg; + var boolean has_msg, use_msg; + + for (var uint8_t ts_nr := 0; ts_nr < 8; ts_nr := ts_nr + 1) { + for (var integer trx_nr := 0; trx_nr < lengthof(g_info_ind.trx); trx_nr := trx_nr + 1) { + //var charstring prefix := "BTS=" & int2str(bts_nr) & ",TRX=" & int2str(trx_nr) & ",TS=" & int2str(ts_nr) & ",FN=" & int2str(fn) & ": "; + if (g_info_ind.trx[trx_nr].pdch_mask[ts_nr] == '0'B) { + //log(prefix, "disabled"); + continue; /* TRX+TS not activated */ + } + + /* Check if we reached time to serve the first DATA.ind message in the queue: */ + has_msg := f_PCUIF_MsgQueue_first(pdtch_data_queue, pcu_msg) and + pcu_msg.u.data_ind.trx_nr == trx_nr and + pcu_msg.u.data_ind.ts_nr == ts_nr; + use_msg := has_msg and (pcu_msg.u.data_ind.fn == 0 or pcu_msg.u.data_ind.fn == fn); + if (use_msg) { + /* Dequeue a DATA.ind message */ + f_PCUIF_MsgQueue_dequeue(pdtch_data_queue, pcu_msg); + /* Patch TDMA frame / block number */ + pcu_msg.u.data_ind.fn := fn; + pcu_msg.u.data_ind.block_nr := fn2macblock(fn); + //log(prefix, "DATA.ind"); + } else if (has_msg and pcu_msg.u.data_ind.fn < fn) { + setverdict(fail, "We are late scheduling the block! ", pcu_msg.u.data_ind.fn, " < ", fn); + mtc.stop; + } else { + /* NOPE.ind: */ + pcu_msg := valueof(ts_PCUIF_DATA_IND(bts_nr, trx_nr, ts_nr, 0 /* FIXME */, + PCU_IF_SAPI_PDTCH, ''O, fn, + g_info_ind.trx[trx_nr].arfcn, + rssi := -80, ber10k := 0, + ta_offs_qbits := 0, lqual_cb := 10)); + //log(prefix, "DATA.ind (len=0)"); + } + + PCUIF.send(pcu_msg); /* Send to the PCU and notify the TC */ + if (use_msg) { + TC.send(ts_RAW_PCU_CLCK_EV(TDMA_EV_PDTCH_BLOCK_SENT, fn)); + } + } + } +} + +/* Handle schedule events and manage actions: Send msgs over PCUIF to PCU, + * advertise Test Case about sent messages, etc. */ private altstep as_BTS_CT_TDMASched(integer bts_nr) runs on RAW_PCU_BTS_CT { var PCUIF_Message pcu_msg; var RAW_PCU_Event event; + var integer ev_begin_fn; [] CLCK.receive(tr_RAW_PCU_EV(TDMA_EV_PDTCH_BLOCK_BEG)) -> value event { /* If the RTS queue for PDTCH is not empty, send a message */ @@ -286,7 +448,7 @@ runs on RAW_PCU_BTS_CT { /* Patch TDMA frame / block number and send */ pcu_msg.u.rts_req.fn := event.data.tdma_fn; - pcu_msg.u.rts_req.block_nr := 0; /* FIXME! */ + pcu_msg.u.rts_req.block_nr := fn2macblock(event.data.tdma_fn); PCUIF.send(pcu_msg); } @@ -295,25 +457,21 @@ runs on RAW_PCU_BTS_CT { PCUIF.send(ts_PCUIF_TIME_IND(bts_nr, event.data.tdma_fn)); repeat; } - [lengthof(pdtch_data_queue) > 0] CLCK.receive(tr_RAW_PCU_EV(TDMA_EV_PDTCH_BLOCK_END)) -> value event { - /* Dequeue a DATA.ind message */ - f_PCUIF_MsgQueue_dequeue(pdtch_data_queue, pcu_msg); - - /* Patch TDMA frame / block number */ - pcu_msg.u.data_ind.fn := event.data.tdma_fn; - pcu_msg.u.data_ind.block_nr := 0; /* FIXME! */ - - PCUIF.send(pcu_msg); /* Send to the PCU and notify the TC */ - TC.send(ts_RAW_PCU_CLCK_EV(TDMA_EV_PDTCH_BLOCK_SENT, event.data.tdma_fn)); + [] CLCK.receive(tr_RAW_PCU_EV(TDMA_EV_PDTCH_BLOCK_END)) -> value event { + /* FN matching the beginning of current block: */ + ev_begin_fn := event.data.tdma_fn - 3; + f_tx_data_ind_fn(bts_nr, ev_begin_fn); repeat; } [lengthof(ptcch_rts_queue) > 0] CLCK.receive(tr_RAW_PCU_EV(TDMA_EV_PTCCH_DL_BLOCK)) -> value event { + /* FN matching the beginning of current block (PTCCH is interleaved over 4 non-consecutive bursts): */ + ev_begin_fn := event.data.tdma_fn - 78; /* Dequeue an RTS.req message for PTCCH */ f_PCUIF_MsgQueue_dequeue(ptcch_rts_queue, pcu_msg); /* Patch TDMA frame / block number and send */ - pcu_msg.u.rts_req.fn := event.data.tdma_fn; - pcu_msg.u.rts_req.block_nr := 0; /* FIXME! */ + pcu_msg.u.rts_req.fn := ev_begin_fn; + pcu_msg.u.rts_req.block_nr := fn2macblock(ev_begin_fn); PCUIF.send(pcu_msg); repeat; } @@ -326,11 +484,16 @@ runs on RAW_PCU_BTS_CT { [] CLCK.receive(tr_RAW_PCU_CLCK_EV) { repeat; } } -function f_BTS_CT_handler(integer bts_nr, PCUIF_info_ind info_ind) +function f_BTS_CT_handler(integer bts_nr, PCUIF_info_ind info_ind, boolean decode_data_req := false) runs on RAW_PCU_BTS_CT { var PCUIF_Message pcu_msg; var RAW_PCU_Command cmd; var RAW_PCU_Event event; + var BTS_PDTCH_Block pcu_msg_pdtch; + var BTS_PTCCH_Block pcu_msg_ptcch; + var BTS_CCCH_Block pcu_msg_rr; + + g_info_ind := info_ind; /* Init TDMA clock generator (so we can stop and start it) */ vc_CLCK_GEN := RAW_PCU_ClckGen_CT.create("ClckGen-" & int2str(bts_nr)) alive; @@ -339,7 +502,6 @@ runs on RAW_PCU_BTS_CT { /* Wait until the PCU is connected */ PCUIF.receive(tr_RAW_PCU_EV(PCU_EV_CONNECT)); - /* TODO: implement ACT.req handling */ alt { /* Wait for TXT.ind (PCU_VERSION) and respond with INFO.ind (SI13) */ [] PCUIF.receive(tr_PCUIF_TXT_IND(bts_nr, PCU_VERSION, ?)) -> value pcu_msg { @@ -353,13 +515,81 @@ runs on RAW_PCU_BTS_CT { u := { info_ind := info_ind } }); + const integer start_fn := 0; + f_tx_first_data_ind(bts_nr, info_ind, start_fn); + /* Notify the test case that we're done with SI13 */ TC.send(ts_RAW_PCU_EV(BTS_EV_SI13_NEGO)); /* Start feeding clock to the PCU */ - vc_CLCK_GEN.start(f_ClckGen_CT_handler()); + vc_CLCK_GEN.start(f_ClckGen_CT_handler(start_fn)); + repeat; + } + /* PCU -> TS becomes active */ + [] PCUIF.receive(tr_PCUIF_ACT_REQ(bts_nr, ?, ?)) -> value pcu_msg { + log("Rx ACT.req from the PCU: TRX" & int2str(pcu_msg.u.act_req.trx_nr) & + "/TS" & int2str(pcu_msg.u.act_req.ts_nr)); + repeat; + } + /* PCU -> TS becomes inactive */ + [] PCUIF.receive(tr_PCUIF_DEACT_REQ(bts_nr, ?, ?)) -> value pcu_msg { + log("Rx DEACT.req from the PCU: TRX" & int2str(pcu_msg.u.act_req.trx_nr) & + "/TS" & int2str(pcu_msg.u.act_req.ts_nr)); repeat; } + [decode_data_req] PCUIF.receive(tr_PCUIF_DATA_REQ(bts_nr, ?, ?, sapi := PCU_IF_SAPI_PCH_2)) -> value pcu_msg { + var charstring imsi_filter_regexp := "(\d*)"; /* numbers only */ + var PCUIF_pch pch; + + pcu_msg_rr.bts_nr := bts_nr; + pcu_msg_rr.raw := pcu_msg.u.data_req; + + pch := dec_PCUIF_pch(pcu_msg_rr.raw.data); + pcu_msg_rr.msg_id := pch.msg_id; + pcu_msg_rr.imsi := regexp(pch.imsi, imsi_filter_regexp, 0); + pcu_msg_rr.rr_msg := dec_GsmRrMessage(pch.data); + pcu_msg_rr.confirm := pch.confirm; + + TC.send(pcu_msg_rr); + repeat; + } + [decode_data_req] PCUIF.receive(tr_PCUIF_DATA_REQ(bts_nr, ?, ?, sapi := PCU_IF_SAPI_AGCH_2)) -> value pcu_msg { + var PCUIF_agch agch; + + pcu_msg_rr.bts_nr := bts_nr; + pcu_msg_rr.raw := pcu_msg.u.data_req; + + agch := dec_PCUIF_agch(pcu_msg_rr.raw.data); + pcu_msg_rr.imsi := omit; + pcu_msg_rr.msg_id := agch.msg_id; + pcu_msg_rr.rr_msg := dec_GsmRrMessage(agch.data); + pcu_msg_rr.confirm := agch.confirm; + + TC.send(pcu_msg_rr); + repeat; + } + [decode_data_req] PCUIF.receive(tr_PCUIF_DATA_REQ(bts_nr, ?, ?, sapi := PCU_IF_SAPI_PDTCH)) -> value pcu_msg { + pcu_msg_pdtch.bts_nr := bts_nr; + pcu_msg_pdtch.raw := pcu_msg.u.data_req; + if (pcu_msg_pdtch.raw.len != 0) { + pcu_msg_pdtch.dl_block := dec_RlcmacDlBlock(pcu_msg_pdtch.raw.data); + } else { + pcu_msg_pdtch.dl_block := omit; + } + TC.send(pcu_msg_pdtch); + repeat; + } + [decode_data_req] PCUIF.receive(tr_PCUIF_DATA_REQ(bts_nr, ?, ?, sapi := PCU_IF_SAPI_PTCCH)) -> value pcu_msg { + pcu_msg_ptcch.bts_nr := bts_nr; + pcu_msg_ptcch.raw := pcu_msg.u.data_req; + if (pcu_msg_ptcch.raw.len != 0) { + pcu_msg_ptcch.dl_block := dec_PTCCHDownlinkMsg(pcu_msg_ptcch.raw.data); + } else { + pcu_msg_ptcch.dl_block := omit; + } + TC.send(pcu_msg_ptcch); + repeat; + } /* PCU -> test case forwarding (filter by the BTS number) */ [] PCUIF.receive(tr_PCUIF_MSG(?, bts_nr)) -> value pcu_msg { TC.send(pcu_msg); @@ -372,6 +602,11 @@ runs on RAW_PCU_BTS_CT { [] as_BTS_CT_TDMASched(bts_nr); /* Command handling */ + [] TC.receive(tr_RAW_PCU_CMD(GENERAL_CMD_SHUTDOWN)) { + log("Shutting down virtual BTS #", bts_nr, "..."); + vc_CLCK_GEN.stop; + break; + } [] TC.receive(tr_RAW_PCU_CMD(TDMA_CMD_ENABLE_PTCCH_UL_FWD)) { log("Enabling forwarding of PTCCH/U TDMA events to the TC"); cfg_ptcch_burst_fwd := true; diff --git a/pcu/PCU_Tests.cfg b/pcu/PCU_Tests.cfg index 6ea5a5a5..6d3407de 100644 --- a/pcu/PCU_Tests.cfg +++ b/pcu/PCU_Tests.cfg @@ -7,13 +7,53 @@ [LOGGING] [MODULE_PARAMETERS] -PCU_Tests.mp_nsconfig := { - local_ip := "127.0.0.1", - local_udp_port := 23000, - remote_ip := "127.0.0.1", - remote_udp_port := 22000, - nsvci := 1234, - nsei := 1234 +SGSN_Components.mp_nsconfig := { + nsei := 1234, + handle_sns := false, + nsvc := { + { + provider := { + ip := { + address_family := AF_INET, + local_ip := "127.0.0.1", + local_udp_port := 23000, + remote_ip := "127.0.0.1", + remote_udp_port := 22000, + data_weight := 1, + signalling_weight := 1 + } + }, + nsvci := 1234 + }, + { + provider := { + ip := { + address_family := AF_INET, + local_ip := "127.0.0.1", + local_udp_port := 23001, + remote_ip := "127.0.0.1", + remote_udp_port := 22000, + data_weight := 1, + signalling_weight := 1 + } + }, + nsvci := 1234 + }, + { + provider := { + ip := { + address_family := AF_INET, + local_ip := "127.0.0.1", + local_udp_port := 23002, + remote_ip := "127.0.0.1", + remote_udp_port := 22000, + data_weight := 1, + signalling_weight := 1 + } + }, + nsvci := 1234 + } + } } [TESTPORT_PARAMETERS] @@ -21,4 +61,5 @@ PCU_Tests.mp_nsconfig := { [MAIN_CONTROLLER] [EXECUTE] -PCU_Tests_RAW.control +PCU_Tests.control +PCU_Tests_NS.control diff --git a/pcu/PCU_Tests.default b/pcu/PCU_Tests.default index 2a87345f..c72720b7 100644 --- a/pcu/PCU_Tests.default +++ b/pcu/PCU_Tests.default @@ -4,27 +4,53 @@ [LOGGING] #*.FileMask := LOG_ALL -ConsoleMask := ERROR | WARNING | TESTCASE | TIMEROP_START | DEBUG_ENCDEC +ConsoleMask := ERROR | WARNING | TESTCASE | TIMEROP_START | USER +PCUIF.ConsoleMask := ERROR | TESTCASE | TIMEROP_START | USER +"ClckGen-0".ConsoleMask := ERROR [MODULE_PARAMETERS] -PCU_Tests.mp_gb_cfg := { +SGSN_Components.mp_gb_cfg := { nsei := 1234, - bvci := 1234, - cell_id := { - ra_id := { - lai := { - mcc_mnc := '262F42'H, lac := 13135 + sgsn_role := true, + bvc := { + { + bvci := 1234, + cell_id := { + ra_id := { + lai := { + mcc_mnc := '262F42'H, lac := 13135 + }, + rac := 0 + }, + cell_id := 20960 }, - rac := 0 - }, - cell_id := 20960 - }, - sgsn_role := true -} + depth := BSSGP_DECODE_DEPTH_BSSGP + } + } +}; +Osmocom_VTY_Functions.mp_prompt_prefix := "OsmoPCU"; +PCUIF_Types.mp_pcuif_version := 12; [TESTPORT_PARAMETERS] -*.*.udpReuseAddress := "yes"; *.PCU.socket_type := "SEQPACKET" +*.PCUVTY.CTRL_MODE := "client" +*.PCUVTY.CTRL_HOSTNAME := "127.0.0.1" +*.PCUVTY.CTRL_PORTNUM := "4240" +*.PCUVTY.CTRL_LOGIN_SKIPPED := "yes" +*.PCUVTY.CTRL_DETECT_SERVER_DISCONNECTED := "yes" +*.PCUVTY.CTRL_READMODE := "buffered" +*.PCUVTY.CTRL_CLIENT_CLEANUP_LINEFEED := "yes" +*.PCUVTY.CTRL_DETECT_CONNECTION_ESTABLISHMENT_RESULT := "yes" +*.PCUVTY.PROMPT1 := "OsmoPCU> " +*.STATSVTY.CTRL_MODE := "client" +*.STATSVTY.CTRL_HOSTNAME := "127.0.0.1" +*.STATSVTY.CTRL_PORTNUM := "4240" +*.STATSVTY.CTRL_LOGIN_SKIPPED := "yes" +*.STATSVTY.CTRL_DETECT_SERVER_DISCONNECTED := "yes" +*.STATSVTY.CTRL_READMODE := "buffered" +*.STATSVTY.CTRL_CLIENT_CLEANUP_LINEFEED := "yes" +*.STATSVTY.CTRL_DETECT_CONNECTION_ESTABLISHMENT_RESULT := "yes" +*.STATSVTY.PROMPT1 := "OsmoPCU> " [MAIN_CONTROLLER] diff --git a/pcu/PCU_Tests.ttcn b/pcu/PCU_Tests.ttcn index 42880610..cab70e8e 100644 --- a/pcu/PCU_Tests.ttcn +++ b/pcu/PCU_Tests.ttcn @@ -1,7 +1,13 @@ module PCU_Tests { -/* Osmocom PCU test suite in TTCN-3 - * (C) 2018-2019 Harald Welte <laforge@gnumonks.org> +/* "RAW" PCU tests: Talk directly to the PCU socket of OsmoPCU on the one hand side (emulating + the BTS/BSC side PCU socket server) and the Gb interface on the other hand side. No NS/BSSGP + Emulation is used; rather, we simply use the NS_CodecPort to implement both standard and non- + standard procedures on the NS and BSSGP level. The goal of these tests is to test exactly + those NS and BSSGP implementations on the BSS (PCU) side. */ + +/* (C) 2018-2019 Harald Welte <laforge@gnumonks.org> + * (C) 2019-2020 Vadim Yanitskiy <axilirator@gmail.com> * All rights reserved. * * Released under the terms of GNU General Public License, Version 2 or @@ -10,697 +16,7562 @@ module PCU_Tests { * SPDX-License-Identifier: GPL-2.0-or-later */ +friend module PCU_Tests_NS; + 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 GSM_RestOctets all; + +import from Osmocom_VTY_Functions all; +import from TELNETasp_PortType all; + +import from MobileL3_GMM_SM_Types all; import from RLCMAC_CSN1_Types all; -import from LAPDm_RAW_PT all; -import from GPRS_Context all; -import from GPRS_TBF all; -import from L1CTL_PortType all; -import from MobileL3_Types all; +import from RLCMAC_CSN1_Templates all; +import from RLCMAC_Types all; +import from RLCMAC_Templates all; + import from MobileL3_CommonIE_Types all; import from L3_Templates all; +import from NS_Types all; +import from BSSGP_Types all; +import from Osmocom_Gb_Types all; + +import from BSSGP_Emulation all; /* BssgpConfig */ +import from NS_Emulation all; /* NSConfiguration */ + +import from UD_Types all; +import from PCUIF_Types all; +import from PCUIF_CodecPort all; +import from PCUIF_Components all; +import from IPL4asp_Types all; +import from Native_Functions all; +import from SGSN_Components all; +import from GPRS_Components all; + +import from StatsD_Types all; +import from StatsD_CodecPort all; +import from StatsD_CodecPort_CtrlFunct all; +import from StatsD_Checker all; + +import from IPA_Emulation all; +import from Osmocom_CTRL_Types all; +import from Osmocom_CTRL_Adapter all; +import from Osmocom_CTRL_Functions all; + modulepar { - BssgpConfig mp_gb_cfg := { - nsei := 1234, - bvci := 1234, - cell_id := { - ra_id := { - lai := { - mcc_mnc := '262F42'H, lac := 13135 - }, - rac := 0 - }, - cell_id := 20960 - }, - sgsn_role := true, - depth := BSSGP_DECODE_DEPTH_BSSGP - }; - - NSConfiguration mp_nsconfig := { - local_udp_port := 23000, - local_ip := "127.0.0.1", - remote_udp_port := 21000, - remote_ip := "127.0.0.1", - nsvci := 0, - nsei := 2342, - role_sgsn := true, - handle_sns := true - }; -} - -type component dummy_CT extends BSSGP_Client_CT { - var lapdm_CT lapdm_component; - port LAPDm_PT L1; - - var NS_CT ns_component; - var BSSGP_CT bssgp_component; - - var MmContext g_mmctx := { - tlli := 'FFFFFFFF'O, - 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[0], bssgp_component:BSSGP_SP); - connect(self:BSSGP_SIG[0], bssgp_component:BSSGP_SP_SIG); - connect(self:BSSGP_PROC[0], bssgp_component:BSSGP_PROC); - /* 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(mp_nsconfig)); - 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()); - - f_bssgp_client_register(g_mmctx.imsi, g_mmctx.tlli, mp_gb_cfg.cell_id); - f_bssgp_establish(); -} - -function f_exit() runs on dummy_CT { - lapdm_component.stop; - ns_component.stop; - bssgp_component.stop; -} - -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, "Values mismatch", a, b); - mtc.stop; + charstring mp_pcu_sock_path := PCU_SOCK_DEFAULT; + + float X2002 := 0.2; /* Timer -2002, IMM ASSIGN confirm delay */ + + charstring mp_pcu_statsd_ip := "127.0.0.1"; + integer mp_pcu_statsd_port := 8125; + + charstring mp_ctrl_neigh_ip := ""; /* Use new PCUIF over IPA multiplex for Neigh Addr Resolution */ + integer mp_ctrl_neigh_port := 4248; +} + + +/* FIXME: make sure to use parameters from mp_gb_cfg.cell_id in the PCU INFO IND */ +friend template (value) PCUIF_info_ind ts_PCUIF_INFO_default(template (value) PCUIF_Flags flags := c_PCUIF_Flags_default) +:= { + version := PCUIF_Types.mp_pcuif_version, + flags := flags, + trx := ts_PCUIF_InfoTrxs_def(GPRS_Components.mp_base_arfcn), + bsic := 7, + mcc := 262, + mnc := 42, + mnc_3_digits := 0, + lac := 13135, + rac := 0, + nsei := mp_nsconfig.nsei, + nse_timer := { 3, 3, 3, 3, 30, 3, 10 }, + cell_timer := { 3, 3, 3, 3, 3, 10, 3, 10, 3, 10, 3 }, + cell_id := 20960, + repeat_time := 5 * 50, + repeat_count := 3, + bvci := mp_gb_cfg.bvc[0].bvci, + t3142 := 20, + t3169 := 5, + t3191 := 5, + t3193_10ms := 160, + t3195 := 5, + n3101 := 10, + n3103 := 4, + n3105 := 8, + cv_countdown := 15, + dl_tbf_ext := 250 * 10, /* ms */ + ul_tbf_ext := 250 * 10, /* ms */ + initial_cs := 2, + initial_mcs := 1, + nsvci := { mp_nsconfig.nsvc[0].nsvci, 0 }, + local_port := { mp_nsconfig.nsvc[0].provider.ip.remote_udp_port, 0 }, + remote_port := { mp_nsconfig.nsvc[0].provider.ip.local_udp_port, 0 }, + remote_addr := f_PCUIF_RemoteAddr( + f_PCUIF_AF2addr_type(mp_nsconfig.nsvc[0].provider.ip.address_family), mp_nsconfig.nsvc[0].provider.ip.local_ip), + bts_model := PCU_IF_BTS_MODEL_TRX +} + +/* Passed in RAN-INFO message from emulated neighbor using RIM */ +const octetstring si1_default := '198fb100000000000000000000000000007900002b'O; +const octetstring si3_default := '1b753000f110236ec9033c2747407900003c0b2b2b'O; +const octetstring si13_default := '009000185a6fc9e08410ab2b2b2b2b2b2b2b2b2b2b'O; +const octetstring si_default := si1_default & si3_default & si13_default; + +const MultislotCap_GPRS mscap_gprs_def := { + gprsmultislotclass := '00011'B, + gprsextendeddynalloccap := '0'B +}; +const MultislotCap_EGPRS mscap_egprs_def := { + egprsmultislotclass := '00011'B, + egprsextendeddynalloccap := '0'B +}; +template (value) MSRadioAccessCapabilityV ms_racap_gprs_def := { ts_RaCapRec('0001'B /* E-GSM */, mscap_gprs_def, omit) }; +template (value) MSRadioAccessCapabilityV ms_racap_egprs_def := { ts_RaCapRec('0001'B /* E-GSM */, mscap_gprs_def, mscap_egprs_def) }; + +const MultislotCap_GPRS_BSSGP bssgp_mscap_gprs_def := { + gprsmultislotclass := '00011'B, + gprsextendeddynalloccap := '0'B +}; +const MultislotCap_EGPRS_BSSGP bssgp_mscap_egprs_def := { + egprsmultislotclass := '00011'B, + egprsextendeddynalloccap := '0'B +}; +template (value) MSRadioAccessCapabilityV_BSSGP bssgp_ms_racap_gprs_def := { valueof(ts_RaCapRec_BSSGP('0001'B /* E-GSM */, bssgp_mscap_gprs_def, omit)) }; +template (value) MSRadioAccessCapabilityV_BSSGP bssgp_ms_racap_egprs_def := { valueof(ts_RaCapRec_BSSGP('0001'B /* E-GSM */, bssgp_mscap_gprs_def, bssgp_mscap_egprs_def)) }; + +type record lqual_range { + /* component reference to the IPA_Client component used for RSL */ + uint8_t low, + uint8_t high +} + +type component RAW_PCU_Test_CT extends bssgp_CT, MS_BTS_IFACE_CT, StatsD_ConnHdlr, CTRL_Adapter_CT { + /* PCU interface abstraction component */ + var RAW_PCUIF_CT vc_PCUIF; + + /* StatsD */ + var StatsD_Checker_CT vc_STATSD; + + /* Connection to the PCUIF component */ + //port RAW_PCU_MSG_PT PCUIF; + /* VTY connection to the PCU */ + port TELNETasp_PT PCUVTY; + + /* Uplink CS/MCS thresholds, default from pcu_main.c: */ + var lqual_range g_cs_lqual_ranges[4] := {{low := 0, high := 6}, + {low := 5, high := 8}, + {low := 7, high := 13}, + {low := 12,high := 35}}; + var lqual_range g_mcs_lqual_ranges[9] := {{low := 0, high := 6}, + {low := 5, high := 8}, + {low := 7, high := 13}, + {low := 12,high := 15}, + {low := 14, high := 17}, + {low := 16, high := 18}, + {low := 17,high := 20}, + {low := 19, high := 24}, + {low := 23,high := 35}}; + var uint8_t g_cs_initial_dl := 1; + var uint8_t g_cs_initial_ul := 1; + var uint8_t g_mcs_initial_dl := 1; + var uint8_t g_mcs_initial_ul := 1; + var uint8_t g_cs_max_dl := 4; + var uint8_t g_cs_max_ul := 4; + var uint8_t g_mcs_max_dl := 9; + var uint8_t g_mcs_max_ul := 9; + + var boolean g_force_two_phase_access := false; + + /* Guard timeout */ + timer g_T_guard := 60.0; +}; + +private altstep as_Tguard_RAW() runs on RAW_PCU_Test_CT { + [] g_T_guard.timeout { + setverdict(fail, "Timeout of T_guard"); + f_shutdown(__BFILE__, __LINE__); + } +} + +private function f_pcuvty_set_allowed_cs_mcs() runs on RAW_PCU_Test_CT { + f_vty_config2(PCUVTY, {"pcu"}, "cs " & int2str(g_cs_initial_dl) & " " & int2str(g_cs_initial_ul)); + f_vty_config2(PCUVTY, {"pcu"}, "cs max " & int2str(g_cs_max_dl) & " " & int2str(g_cs_max_ul)); + + f_vty_config2(PCUVTY, {"pcu"}, "mcs " & int2str(g_mcs_initial_dl) & " " & int2str(g_mcs_initial_ul)); + f_vty_config2(PCUVTY, {"pcu"}, "mcs max " & int2str(g_mcs_max_dl) & " " & int2str(g_mcs_max_ul)); +} + +private function f_pcuvty_set_link_quality_ranges() runs on RAW_PCU_Test_CT { + var charstring cmd; + + cmd := "cs link-quality-ranges" & + " cs1 " & int2str(g_cs_lqual_ranges[0].high) & + " cs2 " & int2str(g_cs_lqual_ranges[1].low) & " " & int2str(g_cs_lqual_ranges[1].high) & + " cs3 " & int2str(g_cs_lqual_ranges[2].low) & " " & int2str(g_cs_lqual_ranges[2].high) & + " cs4 " & int2str(g_cs_lqual_ranges[3].low); + f_vty_config2(PCUVTY, {"pcu"}, cmd); + + cmd := "mcs link-quality-ranges" & + " mcs1 " & int2str(g_mcs_lqual_ranges[0].high) & + " mcs2 " & int2str(g_mcs_lqual_ranges[1].low) & " " & int2str(g_mcs_lqual_ranges[1].high) & + " mcs3 " & int2str(g_mcs_lqual_ranges[2].low) & " " & int2str(g_mcs_lqual_ranges[2].high) & + " mcs4 " & int2str(g_mcs_lqual_ranges[3].low) & " " & int2str(g_mcs_lqual_ranges[3].high) & + " mcs5 " & int2str(g_mcs_lqual_ranges[4].low) & " " & int2str(g_mcs_lqual_ranges[4].high) & + " mcs6 " & int2str(g_mcs_lqual_ranges[5].low) & " " & int2str(g_mcs_lqual_ranges[5].high) & + " mcs7 " & int2str(g_mcs_lqual_ranges[6].low) & " " & int2str(g_mcs_lqual_ranges[6].high) & + " mcs8 " & int2str(g_mcs_lqual_ranges[7].low) & " " & int2str(g_mcs_lqual_ranges[7].high) & + " mcs9 " & int2str(g_mcs_lqual_ranges[8].low); + f_vty_config2(PCUVTY, {"pcu"}, cmd); +} + +private function f_pcuvty_flush_neigh_caches() runs on RAW_PCU_Test_CT { + f_pcuvty_set_neigh_caches(0, 0); +} + +private function f_pcuvty_set_neigh_caches(integer neigh_cache_secs := -1, integer si_cache_secs := -1) +runs on RAW_PCU_Test_CT { + if (neigh_cache_secs == -1) { + f_vty_config2(PCUVTY, {"pcu"}, "timer X10 default"); } else { + f_vty_config2(PCUVTY, {"pcu"}, "timer X10 " & int2str(neigh_cache_secs)); + } + if (si_cache_secs == -1) { + f_vty_config2(PCUVTY, {"pcu"}, "timer X11 default"); + } else { + f_vty_config2(PCUVTY, {"pcu"}, "timer X11 " & int2str(si_cache_secs)); + } +} + +private function f_pcuvty_set_timer(integer t, integer val) +runs on RAW_PCU_Test_CT { + if (t >= 0) { + f_vty_config2(PCUVTY, {"pcu"}, "timer T" & int2str(t) & " " & int2str(val)); + } else { + f_vty_config2(PCUVTY, {"pcu"}, "timer X" & int2str(t * -1) & " " & int2str(val)); + } +} + +private function f_init_vty(charstring id, boolean egprs_only) runs on RAW_PCU_Test_CT { + map(self:PCUVTY, system:PCUVTY); + f_vty_set_prompts(PCUVTY); + f_vty_transceive(PCUVTY, "enable"); + + /* This will be removed soon, not needed. EGPRS support is controlled through pcu_ind flags */ + if (egprs_only) { + f_vty_config2(PCUVTY, {"pcu"}, "egprs only"); + } else { + f_vty_config2(PCUVTY, {"pcu"}, "no egprs"); + } + + if (g_force_two_phase_access) { + f_vty_config2(PCUVTY, {"pcu"}, "two-phase-access"); + } else { + f_vty_config2(PCUVTY, {"pcu"}, "no two-phase-access"); + } +} + +function f_init_raw(charstring id, template (value) PCUIF_info_ind info_ind := ts_PCUIF_INFO_default) +runs on RAW_PCU_Test_CT { + /* Start the guard timer */ + g_T_guard.start; + activate(as_Tguard_RAW()); + + /* Init PCU interface component */ + vc_PCUIF := RAW_PCUIF_CT.create("PCUIF") alive; + //connect(vc_PCUIF:MTC, self:PCUIF); + map(vc_PCUIF:PCU, system:PCU); + + /* Create one BTS component (we may want more some day) */ + vc_BTS := RAW_PCU_BTS_CT.create("BTS") alive; + connect(vc_BTS:PCUIF, vc_PCUIF:BTS); + connect(vc_BTS:TC, self:BTS); + + f_init_vty(id, f_pcuif_ind_flags_egprs_enabled(valueof(info_ind.flags))); + + f_init_statsd(id, vc_STATSD, mp_pcu_statsd_ip, mp_pcu_statsd_port); + /* This is normally done in the ConnHdlr component, but here + * the Test_CT doubles as ConnHdlr */ + connect(self:STATSD_PROC, vc_STATSD:STATSD_PROC); + + vc_PCUIF.start(f_PCUIF_CT_handler(mp_pcu_sock_path)); + vc_BTS.start(f_BTS_CT_handler(0, valueof(info_ind), true)); + + /* Wait until the BTS is ready (SI13 negotiated) */ + BTS.receive(tr_RAW_PCU_EV(BTS_EV_SI13_NEGO)); +} + +/* Register TLLI of each allocated GprsMS instance */ +private function f_multi_ms_bssgp_register() +runs on RAW_PCU_Test_CT { + for (var integer i := 0; i < lengthof(g_ms); i := i + 1) { + f_bssgp_client_llgmm_assign(TLLI_UNUSED, g_ms[i].tlli); + } +} + +/* Allocate [and activate] an Uplink TBF for each allocated GprsMS instance */ +private function f_multi_ms_establish_tbf(boolean do_activate := false) +runs on RAW_PCU_Test_CT { + for (var integer i := 0; i < lengthof(g_ms); i := i + 1) { + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(g_ms[i]); + + /* Send a random block, so this TBF becomes "active" */ + if (do_activate) { + /* FIXME: use the new APU by Pau to get correct TRX/TS here */ + var template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum(7, i mod 8); + var octetstring dummy := f_rnd_octstring(12); + var RlcmacDlBlock dl_block; + var uint32_t poll_fn; + + /* Wait until PCU starts requesting for UL block on this TBF: */ + f_ms_wait_usf(g_ms[i]); + + f_ms_tx_ul_data_block(g_ms[i], dummy, with_tlli := true, fn := g_ms[i].ul_tbf.start_time_fn, nr := nr); + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, poll_fn, nr := nr); + } + } +} + +private function f_ms_establish_ul_tbf_2phase_access(inout GprsMS ms, + template (omit) RlcmacUlCtrlMsg pkt_res_req := omit) +runs on RAW_PCU_Test_CT return PollFnCtx { + var PollFnCtx pollctx; + + /* Single block (two phase) packet access */ + var uint16_t ra := bit2int(chan_req_sb); + if (g_force_two_phase_access) { + /* If 2phase access is enforced by the network, then let's + * request a One phase packet access, we'll receive a single block + * anyway + */ + ra := bit2int(chan_req_def); + } + + /* Establish an Uplink TBF */ + f_ms_use_ra(ms, ra, ra_is_11bit := 0); + f_ms_establish_ul_tbf(ms); + + /* Make sure we've got an Uplink TBF assignment */ + if (not match(ms.ul_tbf.ass.ccch, tr_PacketUlSglAssign)) { + setverdict(fail, "Wrong Packet Uplink Assignment received: ", ms.ul_tbf.ass.ccch, " vs exp: ", tr_PacketUlSglAssign); + f_shutdown(__BFILE__, __LINE__); + } + + /* Send PACKET RESOURCE REQUEST + * (see 3GPP TS 04.60 "7.1.3.1 Initiation of the Packet resource request procedure") + */ + if (istemplatekind(pkt_res_req, "omit")) { + pkt_res_req := ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, omit); + } + + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(valueof(pkt_res_req)), ms.ul_tbf.start_time_fn, nr := f_ms_tx_TsTrxBtsNum(ms)); + /* Store 1st UlTBF context before receiving next one, will + * overwrite the TS allocation on MS with info from new UL TBF: + */ + pollctx.tstrxbts := f_ms_tx_TsTrxBtsNum(ms); + f_ms_rx_pkt_ass_pacch(ms, pollctx.fn, tr_RLCMAC_UL_PACKET_ASS, nr := f_ms_tx_TsTrxBtsNum(ms)); + return pollctx; +} + +testcase TC_pcuif_suspend() runs on RAW_PCU_Test_CT { + var octetstring ra_id := enc_RoutingAreaIdentification(mp_gb_cfg.bvc[0].cell_id.ra_id); + var GprsTlli tlli := TLLI_UNUSED; + timer T; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + + BTS.send(ts_PCUIF_SUSP_REQ(0, tlli, ra_id, 0)); + + T.start(2.0); + alt { + [] BSSGP_GLOBAL[0].receive(tr_BSSGP_SUSPEND(tlli, mp_gb_cfg.bvc[0].cell_id.ra_id)) { + setverdict(pass); + } + [] T.timeout { + setverdict(fail, "Timeout waiting for BSSGP SUSPEND"); + } + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Make sure TBF is released and no data is sent for in after reciving a Suspend Request from that MS. See OS#4761 */ +testcase TC_pcuif_suspend_active_tbf() runs on RAW_PCU_Test_CT { + var octetstring ra_id := enc_RoutingAreaIdentification(mp_gb_cfg.bvc[0].cell_id.ra_id); + var BTS_PDTCH_Block data_msg; + var RlcmacDlBlock dl_block; + var octetstring data := f_rnd_octstring(10); + var uint32_t sched_fn; + var uint32_t dl_fn; + var GprsMS ms; + timer T; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); + + /* Wait until PCU starts requesting for UL block on this TBF: */ + f_ms_wait_usf(ms); + + /* Send one UL block (with TLLI since we are in One-Phase Access + contention resolution) and make sure it is ACKED fine */ + f_ms_tx_ul_data_block_multi(ms, 1, with_tlli := true, fn := ms.ul_tbf.start_time_fn); + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); + /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + + /* UL block should be received in SGSN */ + BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id)); + + /* Now SGSN sends some DL data, PCU will page on CCCH (PCH) */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data, imsi := ts_BSSGP_IMSI(ms.imsi))); + f_ms_exp_dl_tbf_ass_ccch(ms); + + /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */ + f_sleep(X2002); + f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data, 0); + + /* MS has moved to CS, it sent SUSP REQ to BTS and PCU gets it, TBF is freed: */ + BTS.send(ts_PCUIF_SUSP_REQ(0, ms.tlli, ra_id, 0)); + + T.start(2.0); + alt { + [] BSSGP_GLOBAL[0].receive(tr_BSSGP_SUSPEND(ms.tlli, mp_gb_cfg.bvc[0].cell_id.ra_id)) { setverdict(pass); + } + [] T.timeout { + setverdict(fail, "Timeout waiting for BSSGP SUSPEND"); + f_shutdown(__BFILE__, __LINE__); + } + } + + /* Make sure we don't receive data for that TBF since it was released + * before. Also check our TBF is not polled for UL. */ + f_pcuif_rx_data_req_pdtch(data_msg); + if (data_msg.dl_block == omit) { + /* IDLE block, expected on new PCU versions */ + } else { + setverdict(fail, "Unexpected dl_block", data_msg.dl_block); + f_shutdown(__BFILE__, __LINE__); } + + /* New data arrives, PCU should page the MS since no TBF active exists: */ + /* Send some more data, it will never reach the MS */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data, imsi := ts_BSSGP_IMSI(ms.imsi))); + f_ms_exp_dl_tbf_ass_ccch(ms); + + f_shutdown(__BFILE__, __LINE__, final := true); } -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); +/* Test of correct Timing Advance at the time of TBF establishment + * (derived from timing offset of the Access Burst). */ +testcase TC_ta_rach_imm_ass() runs on RAW_PCU_Test_CT { + var GprsMS ms; + + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + + /* We cannot send too many TBF requests in a short time because + * at some point the PCU will fail to allocate a new TBF. */ + for (var TimingAdvance ta := 0; ta < 64; ta := ta + 16) { + /* Establish an Uplink TBF (send RACH.ind with current TA) */ + ms.ta := ta; + f_ms_establish_ul_tbf(ms); + + /* Make sure Timing Advance IE matches out expectations */ + if (ms.ul_tbf.rr_imm_ass.payload.imm_ass.timing_advance != ta) { + setverdict(fail, "Timing Advance mismatch: ", + ms.ul_tbf.rr_imm_ass.payload.imm_ass.timing_advance, + " vs expected ", ta); + break; + } + } + + f_shutdown(__BFILE__, __LINE__, final := true); } -testcase TC_selftest_ns() runs on dummy_CT { - const octetstring c_ns_reset_pcu := '000000c4271e813d'O; +/* Verify Timing Advance value indicated in Packet Uplink ACK/NACK message + * sent in response to the first Uplink block after resource allocation. */ +testcase TC_ta_ul_ack_nack_first_block() runs on RAW_PCU_Test_CT { + var GprsMS ms := valueof(t_GprsMS_def); + var PacketUlAckNack ul_ack_nack; + var PacketTimingAdvance pkt_ta; + var RlcmacDlBlock dl_block; + var uint32_t sched_fn; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); - /* 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); + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); - f_ns_dec_and_log(c_ns_reset_pcu); + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); + + /* Wait until PCU starts requesting for UL block on this TBF: */ + f_ms_wait_usf(ms); + + /* In a busy network, there can be a significant delay between resource + * allocation (Packet Uplink Assignment above) and the actual time when + * the MS is allowed to transmit the first Uplink data block. */ + + /* Simulate a delay > 0 */ + ms.ta := 2; + + /* We're in One-Phase Access contention resolution, include TLLI */ + f_ms_tx_ul_data_block_multi(ms, 1, with_tlli := true, fn := ms.ul_tbf.start_time_fn); + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); + + ul_ack_nack := dl_block.ctrl.payload.u.ul_ack_nack; + if (ispresent(ul_ack_nack.gprs.pkt_ta)) { + pkt_ta := ul_ack_nack.gprs.pkt_ta; + } else if (ispresent(ul_ack_nack.egprs.pkt_ta)) { + pkt_ta := ul_ack_nack.egprs.pkt_ta; + } else { + setverdict(fail, "PacketTimingAdvance IE is not present"); + f_shutdown(__BFILE__, __LINE__); + } + + if (not ispresent(pkt_ta.val)) { + setverdict(fail, "Timing Advance value is not present"); + f_shutdown(__BFILE__, __LINE__); + } else if (pkt_ta.val != ms.ta) { + setverdict(fail, "Timing Advance mismatch: expected ", + ms.ta, ", but received ", pkt_ta.val); + f_shutdown(__BFILE__, __LINE__); + } + + f_shutdown(__BFILE__, __LINE__, final := true); } -const octetstring gmm_auth_req := '081200102198c72477ea104895e8b959acc58b108182'O; +/* Verify Timing Advance value(s) indicated during the packet Downlink assignment + * procedure as per 3GPP TS 44.018, section 3.5.3. There seems to be a bug in the + * IUT that causes it to send an unreasonable Timing Advance value > 0 despite + * no active TBF exists at the moment of establishment (idle mode). */ +testcase TC_ta_idle_dl_tbf_ass() runs on RAW_PCU_Test_CT { + var GprsMS ms := valueof(t_GprsMS_def); -/* 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; + /* Initialize NS/BSSGP side */ + f_init_bssgp(); - //log("GMM Tx: ", dec_PDU_L3_SGSN_MS(gmm_pdu)); + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); - 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; + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* SGSN sends some DL data, PCU will initiate Packet Downlink + * Assignment on CCCH (PCH). We don't care about the payload. */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, f_rnd_octstring(10), imsi := ts_BSSGP_IMSI(ms.imsi))); + f_ms_exp_dl_tbf_ass_ccch(ms); - log(ts_BSSGP_DL_UD(g_mmctx.tlli, enc_PDU_LLC(llc))); + /* Make sure that Timing Advance is 0 (the actual value is not known yet). + * As per 3GPP S 44.018, section 3.5.3.1.2, the network *shall* initiate + * the procedures defined in 3GPP TS 44.060 or use the polling mechanism. */ + if (ms.dl_tbf.rr_imm_ass.payload.imm_ass.timing_advance != 0) { + setverdict(fail, "Timing Advance value doesn't match"); + } - BSSGP[0].send(ts_BSSGP_DL_UD(g_mmctx.tlli, enc_PDU_LLC(llc))); + f_shutdown(__BFILE__, __LINE__, final := true); } -/* Establish BSSGP connection to PCU */ -function f_bssgp_establish() runs on BSSGP_Client_CT { - timer T:= 10.0; +/* Verify that the PCU generates idle blocks in PTCCH/D + * while neither Uplink nor Downlink TBF is established. */ +testcase TC_ta_ptcch_idle() runs on RAW_PCU_Test_CT { + var BTS_PTCCH_Block pcu_msg; + timer T; - T.start + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); + + /* Sent an RTS.req for PTCCH/D */ + BTS.send(ts_PCUIF_RTS_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 7, + sapi := PCU_IF_SAPI_PTCCH, fn := 0, + arfcn := 871, block_nr := 0)); + + T.start(5.0); alt { - [] BSSGP[0].receive(t_BssgpStsInd(?, ?, BVC_S_UNBLOCKED)) { } - [] BSSGP[0].receive { repeat; } + [] BTS.receive(tr_PCUIF_DATA_PTCCH(0, + tr_PCUIF_DATA(0, 7, sapi := PCU_IF_SAPI_PTCCH), + omit)) { + } + [] as_rx_ptcch(pcu_msg, tr_PTCCHDownlinkMsg) { + setverdict(fail, "Expected IDLE block instead of PTCCH/D block"); + f_shutdown(__BFILE__, __LINE__); + } + [] BTS.receive(PCUIF_Message:?) { repeat; } [] T.timeout { - setverdict(fail, "Timeout establishing BSSGP connection"); - mtc.stop; + setverdict(fail, "Timeout waiting for a PTCCH/D block"); + f_shutdown(__BFILE__, __LINE__); } } - T.stop - log("BSSGP successfully initialized"); + log("Decoded PTCCH/D message: ", pcu_msg.dl_block); + + f_shutdown(__BFILE__, __LINE__, final := true); } -function f_wait_paging_req_type1(hexstring expected_tmsi) runs on dummy_CT { - var LAPDm_ph_data ph_data; - timer T := 5.0; +/* Test of correct Timing Advance during an active Uplink TBF. + * + * Unlike the circuit-switched domain, Uplink transmissions on PDCH time-slots + * are not continuous and there can be long time gaps between them. This happens + * due to a bursty nature of packet data. The actual Timing Advance of a MS may + * significantly change between such rare Uplink transmissions, so GPRS introduces + * additional mechanisms to control Timing Advance, and thus reduce interference + * between neighboring TDMA time-slots. + * + * At the moment of Uplink TBF establishment, initial Timing Advance is measured + * from ToA (Timing of Arrival) of an Access Burst. This is covered by another + * test case - TC_ta_rach_imm_ass. In response to that Access Burst the network + * sends Immediate Assignment on AGCH, which _may_ contain Timing Advance Index + * among with the initial Timing Advance value. And here PTCCH comes to play. + * + * PTCCH is a unidirectional channel on which the network can instruct a sub-set + * of 16 MS (whether TBFs are active or not) to adjust their Timing Advance + * continuously. To ensure continuous measurements of the signal propagation + * delay, the MSs shall transmit Access Bursts on Uplink (PTCCH/U) on sub-slots + * defined by an assigned Timing Advance Index (see 3GPP TS 45.002). + * + * The purpose of this test case is to verify the assignment of Timing Advance + * Index, and the process of Timing Advance notification on PTCCH/D. The MTC + * first establishes several Uplink TBFs, but does not transmit any Uplink + * blocks on them. During 4 TDMA multi-frame periods the MTC is sending RACH + * indications to the PCU, checking the correctness of two received PTCCH/D + * messages (period of PTCCH/D is two multi-frames). + */ - T.start; +/* List of ToA values for Access Bursts to be sent on PTCCH/U, + * each ToA (Timing of Arrival) value is in units of 1/4 of + * a symbol (i.e. 1 symbol is 4 QTA units). */ +type record length(16) of int16_t PTCCH_TAI_ToA_MAP; +const PTCCH_TAI_ToA_MAP ptcch_toa_map_def := { + 0, 0, 0, 0, + 0, 0, 0, 0, + 0, 0, 0, 0, + 0, 0, 0, 0 +}; + +private altstep as_ta_ptcch(uint8_t bts_nr := 0, uint8_t trx_nr := 0, uint8_t ts_nr := 7, + in PTCCH_TAI_ToA_MAP toa_map := ptcch_toa_map_def) +runs on RAW_PCU_Test_CT { + var RAW_PCU_Event event; + var integer ss; + + /* Send Access Bursts on PTCCH/U for every TA Index */ + [] BTS.receive(tr_RAW_PCU_EV(TDMA_EV_PTCCH_UL_BURST)) -> value event { + ss := f_tdma_ptcch_fn2ss(event.data.tdma_fn); + if (ss < 0) { /* Shall not happen */ + f_shutdown(__BFILE__, __LINE__); + } + + log("Sending an Access Burst on PTCCH/U", + ", sub-slot=", ss, " (TAI)", + ", fn=", event.data.tdma_fn, + ", ToA=", toa_map[ss], " (QTA)"); + /* TODO: do we care about RA and burst format? */ + BTS.send(ts_PCUIF_RACH_IND(bts_nr, trx_nr, ts_nr, + ra := oct2int('3A'O), + is_11bit := 0, + burst_type := BURST_TYPE_0, + fn := event.data.tdma_fn, + arfcn := 871, + qta := toa_map[ss], + sapi := PCU_IF_SAPI_PTCCH)); + repeat; + } +} + +private function f_TC_ta_ptcch_ul_multi_tbf(in PTCCH_TAI_ToA_MAP ptcch_toa_map, + template PTCCHDownlinkMsg t_ta_msg) +runs on RAW_PCU_Test_CT { + var PTCCHDownlinkMsg ta_msg; + var PCUIF_Message pcu_msg; + timer T; + + /* First, send an RTS.req for the upcoming PTCCH/D block */ + BTS.send(ts_PCUIF_RTS_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 7, + sapi := PCU_IF_SAPI_PTCCH, fn := 0, + arfcn := 871, block_nr := 0)); + T.start(2.0); alt { - [] L1.receive(LAPDm_ph_data:{sacch:=?,sapi:=0,lapdm:={bbis:=?}}) -> value ph_data { - var octetstring payload := substr(ph_data.lapdm.bbis.payload, 1, lengthof(ph_data.lapdm.bbis.payload) - 1); - var PDU_ML3_NW_MS pdu; + /* Keep sending of Access Bursts during two multi-frames (period of PTCCH/D) + * with increasing ToA (Timing of Arrival) values: 0, 7, 14, 28, 35... */ + [] as_ta_ptcch(bts_nr := 0, trx_nr := 0, ts_nr := 7, toa_map := ptcch_toa_map); + /* In the end of 2nd multi-frame we should receive a PTCCH/D block */ + [] BTS.receive(tr_PCUIF_DATA_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 7, + sapi := PCU_IF_SAPI_PTCCH)) -> value pcu_msg { + ta_msg := dec_PTCCHDownlinkMsg(pcu_msg.u.data_req.data); + log("Rx PTCCH/D message: ", ta_msg); - if (dec_PDU_ML3_NW_MS_backtrack(payload, pdu) != 0) { - repeat; + /* Make sure Timing Advance values match our expectations */ + if (not match(ta_msg, t_ta_msg)) { + setverdict(fail, "PTCCH/D message does not match: ", t_ta_msg); } + } + [] BTS.receive { repeat; } + [] T.timeout { + setverdict(fail, "Timeout waiting for a PTCCH/D block"); + } + } +} - if (not ischosen(pdu.msgs.rrm)) { - repeat; +testcase TC_ta_ptcch_ul_multi_tbf() runs on RAW_PCU_Test_CT { + var template PacketUlAssign t_ul_tbf_ass; + var GprsMS ms; + + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); + + /* Enable forwarding of PTCCH/U TDMA events to us */ + BTS.send(ts_RAW_PCU_CMD(TDMA_CMD_ENABLE_PTCCH_UL_FWD)); + + /* Establish 7 Uplink TBFs (USF flag is 3 bits long, '111'B is reserved) */ + for (var integer i := 0; i < 7; i := i + 1) { + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); + + /* We expect incremental TFI/USF assignment (dynamic allocation) */ + t_ul_tbf_ass := tr_PacketUlDynAssign(tfi := i, usf := i); + if (not match(ms.ul_tbf.ass.ccch, t_ul_tbf_ass)) { + setverdict(fail, "Failed to match Packet Uplink Assignment for #", i); + break; } - if (match(pdu, tr_PAGING_REQ1(tr_PAGING_REQ1_MI1_TMSI(hex2oct(expected_tmsi))))) { - setverdict(pass); + /* We also expect Timing Advance Index to be a part of the assignment */ + if (ms.ul_tbf.ass.ccch.dynamic.ta_index != i) { + setverdict(fail, "Failed to match Timing Advance Index for #", i); + /* Keep going, the current OsmoPCU does not assign TA Index */ + } + } + + /* Prepare a list of ToA values for Access Bursts to be sent on PTCCH/U */ + var PTCCH_TAI_ToA_MAP toa_map := ptcch_toa_map_def; + for (var integer i := 0; i < 7; i := i + 1) { + /* ToA in units of 1/4 of a symbol */ + toa_map[i] := (i + 1) * 7 * 4; + } + + /* Now we have all 7 TBFs established in one-phase access mode, + * however we will not be sending any data on them. Instead, we + * will be sending RACH.ind on PTCCH/U during 4 multi-frame + * periods (TAI 0..8), and then will check two PTCCH/D blocks. + * + * Why not 4 TBFs at once? Because Uplink is delayed by 3 TDMA + * time-slots, so at the moment of scheduling a PTCCH/D block + * the PCU has odd number of PTCCH/U Access Bursts received. */ + f_TC_ta_ptcch_ul_multi_tbf(toa_map, tr_PTCCHDownlinkMsg( + tai0_ta := 7, tai1_ta := 14, tai2_ta := 21, + /* Other values are not known (yet) */ + tai3_ta := ?)); + f_TC_ta_ptcch_ul_multi_tbf(toa_map, tr_PTCCHDownlinkMsg( + tai0_ta := 7, tai1_ta := 14, tai2_ta := 21, + tai3_ta := 28, tai4_ta := 35, tai5_ta := 42, + /* Other values are out of our interest */ + tai6_ta := ?)); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Default link quality adaptation (Coding Scheme) ranges (inclusive). + * OsmoPCU (VTY): cs link-quality-ranges cs1 6 cs2 5 8 cs3 7 13 cs4 12 + * + * NOTE: the ranges are intentionally overlapping because OsmoPCU + * does not change CS/MCS on the range borders (5-6, 7-8, 12-13). */ +private template integer CS1_lqual_dB_range := (-infinity .. 6); +private template integer CS2_lqual_dB_range := (5 .. 8); +private template integer CS3_lqual_dB_range := (7 .. 13); +private template integer CS4_lqual_dB_range := (12 .. infinity); + +testcase TC_cs_lqual_ul_tbf() runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var GprsMS ms; + var uint32_t unused_fn, sched_fn; + var uint4_t cv; + + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + + f_pcuvty_set_allowed_cs_mcs(); + f_pcuvty_set_link_quality_ranges(); + + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); + + /* Wait until PCU starts requesting for UL block on this TBF: */ + f_ms_wait_usf(ms); + + /* The actual / old link quality values. We need to keep track of the old + * (basically previous) link quality value, because OsmoPCU actually + * changes the coding scheme if not only the actual, but also the old + * value leaves the current link quality range (window). */ + var integer lqual_old; + ms.lqual_cb := 0; + + /* Send one UL block (with TLLI since we are in One-Phase Access + contention resolution) and make sure it is ACKED fine. */ + /* 16 bytes fills the llc block (because TLLI takes 4 bytes) */ + /* Set CV = 15 to signal there's still more than BS_CV_MAX blocks to be sent */ + f_ms_tx_ul_data_block(ms, f_rnd_octstring(16), cv := 15, with_tlli := true, fn := ms.ul_tbf.start_time_fn) + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); + /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + + /* 16 UL blocks (0 .. 15 dB, step = 1 cB) */ + for (var integer i := 150; i >= 0; i := i - 1) { + /* Update the old / actual link quality */ + lqual_old := ms.lqual_cb; + ms.lqual_cb := 150 - i; + + /* Enqueue DATA.ind (both TDMA frame and block numbers to be patched) */ + log("Sending DATA.ind with link quality (dB): ", ms.lqual_cb); + if (i > g_bs_cv_max) { + cv := 15; } else { - repeat; + cv := i; + } + + f_ms_tx_ul_data_block(ms, f_rnd_octstring(10), cv := cv) + + /* we will receive UL ACK/NACK from time to time. In that case, check CdCofing increases */ + f_rx_rlcmac_dl_block(dl_block, unused_fn); + if (match(dl_block, tr_RLCMAC_DL_DUMMY_CTRL())) { + continue; + } + if (not match(dl_block, tr_RLCMAC_UL_ACK_NACK_GPRS(ul_tfi := ?)) and + not match(dl_block, tr_RLCMAC_UL_ACK_NACK_EGPRS(ul_tfi := ?))) { + setverdict(fail, "Failed to match Packet Uplink ACK / NACK:", dl_block); + f_shutdown(__BFILE__, __LINE__); + } + + log("Rx Packet Uplink ACK / NACK with Channel Coding Command: ", + dl_block.ctrl.payload.u.ul_ack_nack.gprs.ch_coding_cmd); + + /* Match the received Channel Coding Command. Since we are increasing + * the link quality value on each iteration and not decreasing, there + * is no need to check the both old and current link quality values. */ + var template ChCodingCommand ch_coding; + select (lqual_old / 10) { + case (CS1_lqual_dB_range) { ch_coding := CH_CODING_CS1; } + case (CS2_lqual_dB_range) { ch_coding := CH_CODING_CS2; } + case (CS3_lqual_dB_range) { ch_coding := CH_CODING_CS3; } + case (CS4_lqual_dB_range) { ch_coding := CH_CODING_CS4; } + } + + if (not match(dl_block.ctrl.payload.u.ul_ack_nack.gprs.ch_coding_cmd, ch_coding)) { + setverdict(fail, "Channel Coding does not match our expectations: ", ch_coding); + f_shutdown(__BFILE__, __LINE__); } } - [] L1.receive { repeat; } - [] T.timeout { setverdict(fail); } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Test the max UL CS set by VTY works fine */ +testcase TC_cs_initial_ul() runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var ChCodingCommand last_ch_coding; + var uint32_t unused_fn, sched_fn; + var GprsMS ms; + + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + + /* Set initial UL CS to 3 */ + g_cs_initial_ul := 3; + f_pcuvty_set_allowed_cs_mcs(); + f_pcuvty_set_link_quality_ranges(); + + /* Take lqual (dB->cB) so that we stay in that CS */ + ms.lqual_cb := g_cs_lqual_ranges[2].low * 10; + + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); + + /* Wait until PCU starts requesting for UL block on this TBF: */ + f_ms_wait_usf(ms); + + /* Send one UL block (with TLLI since we are in One-Phase Access + contention resolution) and make sure it is ACKED fine. */ + /* 16 bytes fills the llc block (because TLLI takes 4 bytes) */ + /* Set CV = 15 to signal there's still more than BS_CV_MAX blocks to be sent */ + f_ms_tx_ul_data_block(ms, f_rnd_octstring(16), cv := 15, with_tlli := true, fn := ms.ul_tbf.start_time_fn) + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); + /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + + /* Send UL blocks, until we receive UL ACK/NACK and check we are in same initial CS: */ + while (true) { + f_ms_tx_ul_data_block(ms, f_rnd_octstring(10), cv := 15); + f_rx_rlcmac_dl_block(dl_block, unused_fn); + if (match(dl_block, tr_RLCMAC_DL_DUMMY_CTRL())) { + continue; + } + + if (not match(dl_block, tr_RLCMAC_UL_ACK_NACK_GPRS(ul_tfi := ?)) and + not match(dl_block, tr_RLCMAC_UL_ACK_NACK_EGPRS(ul_tfi := ?))) { + setverdict(fail, "Failed to match Packet Uplink ACK / NACK:", dl_block); + f_shutdown(__BFILE__, __LINE__); + break; + } + + last_ch_coding := dl_block.ctrl.payload.u.ul_ack_nack.gprs.ch_coding_cmd; + break; } + if (last_ch_coding != CH_CODING_CS3) { + setverdict(fail, "Channel Coding does not match our expectations (CS-3): ", last_ch_coding); + f_shutdown(__BFILE__, __LINE__); + } + + /* Remaining UL blocks are used to make sure regardless of initial + /* lqual, we can go lower at any time */ + /* 0 dB, make sure we downgrade CS */ + ms.lqual_cb := 0; + /* 5 UL blocks, check we are in same initial CS: */ + f_ms_tx_ul_data_block_multi(ms, 5); + /* Enqueue RTS.req, expect DATA.req with UL ACK from the PCU */ + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, unused_fn); + last_ch_coding := dl_block.ctrl.payload.u.ul_ack_nack.gprs.ch_coding_cmd; + + if (last_ch_coding != CH_CODING_CS1) { + setverdict(fail, "Channel Coding does not match our expectations (CS-1): ", last_ch_coding); + f_shutdown(__BFILE__, __LINE__); + } + + f_shutdown(__BFILE__, __LINE__, final := true); } -/* Send PS-PAGING via BSSGP to PCU, expect it to show up on L1/Um */ -testcase TC_paging() runs on dummy_CT { - var hexstring tmsi_hex := '01234567'H; - var GsmTmsi tmsi := hex2int(tmsi_hex); +/* Test the max UL CS set by VTY works fine */ +testcase TC_cs_max_ul() runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var ChCodingCommand last_ch_coding; + var uint32_t unused_fn, sched_fn; + var GprsMS ms; - g_mmctx.imsi := '262420123456789'H; - g_mmctx.tlli := f_random_tlli(); - f_init(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ - var BCCH_tune_req tune_req := { { false, 871 }, true }; - L1.send(tune_req); - /* FIXME: wait for confirm */ + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); - /* Send paging on signalling BVCI 0 since osmo-pcu does not support paging on PTP yet. */ - /* - TODO: Paging by IMSI does not work yet because osmo-pcu does not copy IMSI into paging requests. - BSSGP_SIG[0].send(ts_BSSGP_PS_PAGING_IMSI(0, g_mmctx.imsi)); - f_wait_paging_req_type1(hex2oct(g_mmctx.imsi)); - */ + /* Set maximum allowed UL CS to 3 */ + g_cs_max_ul := 3; + f_pcuvty_set_allowed_cs_mcs(); + f_pcuvty_set_link_quality_ranges(); - /* Page by TMSI */ - BSSGP_SIG[0].send(ts_BSSGP_PS_PAGING_PTMSI(0, g_mmctx.imsi, tmsi)); - f_wait_paging_req_type1(tmsi_hex); + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); + + /* Wait until PCU starts requesting for UL block on this TBF: */ + f_ms_wait_usf(ms); + + /* Send one UL block (with TLLI since we are in One-Phase Access + contention resolution) and make sure it is ACKED fine. */ + /* 16 bytes fills the llc block (because TLLI takes 4 bytes) */ + /* Set CV = 15 to signal there's still more than BS_CV_MAX blocks to be sent */ + f_ms_tx_ul_data_block(ms, f_rnd_octstring(16), cv := 15, with_tlli := true, fn := ms.ul_tbf.start_time_fn) + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); + /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + + ms.lqual_cb := 40*10; /* 40 dB */ + f_ms_tx_ul_data_block_multi(ms, 16); + + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, unused_fn); + last_ch_coding := dl_block.ctrl.payload.u.ul_ack_nack.gprs.ch_coding_cmd; + + if (last_ch_coding != CH_CODING_CS3) { + setverdict(fail, "Channel Coding does not match our expectations (CS-3): ", last_ch_coding); + f_shutdown(__BFILE__, __LINE__); + } + + f_shutdown(__BFILE__, __LINE__, final := true); } -/* 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 */ +/* Test the initial DL CS set by VTY works fine */ +testcase TC_cs_initial_dl() runs on RAW_PCU_Test_CT { + var octetstring data := f_rnd_octstring(10); + var CodingScheme exp_dl_cs_mcs; + var RlcmacDlBlock dl_block; + var uint32_t poll_fn; + var GprsMS ms; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + + /* Set initial allowed DL CS to 3 */ + g_cs_initial_dl := 3; + exp_dl_cs_mcs := CS_3; + /* Set maximum allowed UL CS to 4 */ + g_cs_max_dl := 4; + f_pcuvty_set_allowed_cs_mcs(); + f_pcuvty_set_link_quality_ranges(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* SGSN sends some DL data, PCU will page on CCCH (PCH) */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data, imsi := ts_BSSGP_IMSI(ms.imsi))); + f_ms_exp_dl_tbf_ass_ccch(ms); + + /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */ + f_sleep(X2002); + f_rx_rlcmac_dl_block_exp_data(dl_block, poll_fn, data, 0, exp_dl_cs_mcs); + + /* ACK the DL block */ + f_acknackdesc_ack_block(ms.dl_tbf.acknack_desc, dl_block, '1'B); + f_ms_tx_ul_block(ms, ts_RLCMAC_DL_ACK_NACK(ms.dl_tbf.tfi, ms.dl_tbf.acknack_desc), + f_dl_block_ack_fn(dl_block, poll_fn)); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Verify scheduling of multiple Downlink data blocks, enough to reach CS4 */ +function f_dl_data_exp_cs(template (present) CodingScheme exp_final_cs := ?, template (omit) MSRadioAccessCapabilityV_BSSGP ms_racap := omit) runs on RAW_PCU_Test_CT { + var octetstring data := f_rnd_octstring(1400); + var RlcmacDlBlock prev_dl_block, dl_block; + var uint32_t ack_fn; + var uint32_t fn; + var GprsMS ms; + var integer tx_data_remain := 10; + var integer bsn := 0; + var boolean using_egprs := f_rlcmac_cs_mcs_is_mcs(valueof(exp_final_cs)); + var integer bsn_mod; + var template (present) CodingScheme exp_tmp_csmcs; + + if (using_egprs) { + exp_tmp_csmcs := mcs_egprs_any; + bsn_mod := 2048; + } else { + exp_tmp_csmcs := cs_gprs_any; + bsn_mod := 128; + } + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + + ms := g_ms[0]; /* We only use first MS in this test */ + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* SGSN sends some DL data, PCU will page on CCCH (PCH) */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data, ms_racap, imsi := ts_BSSGP_IMSI(ms.imsi))); + f_ms_exp_dl_tbf_ass_ccch(ms); + + /* Wait timer X2002 and DL block is available after CCCH IMM ASS */ + f_sleep(X2002); + + /* Skip potential dummy blocks before X2002 triggers at PCU after us: */ + fn := f_rx_rlcmac_dl_block_skip_dummy(dl_block, max_dummy := 10); + + for (var integer i := 0; i < 800; i := i + 1) { + bsn := i mod bsn_mod; + + if (match(dl_block, tr_RLCMAC_DL_DUMMY_CTRL)) { + /* No more data to receive, done */ + break; + } + + f_rlcmac_dl_block_exp_data(dl_block, ?, bsn, exp_tmp_csmcs); + + /* Keep Ack/Nack description updated */ + f_dltbf_ack_block(ms.dl_tbf, dl_block); + + /* TDMA frame number on which we are supposed to send the ACK */ + if (f_dl_block_rrbp_valid(dl_block)) { + ack_fn := f_dl_block_ack_fn(dl_block, fn); + f_ms_tx_ul_block(ms, f_dltbf_ts_RLCMAC_DL_ACK_NACK(ms.dl_tbf, using_egprs), ack_fn); + if (tx_data_remain != 0) { + /* Submit more data from time to time to keep the TBF ongoing */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data)); + tx_data_remain := tx_data_remain - 1; + } + } + prev_dl_block := dl_block; + f_rx_rlcmac_dl_block(dl_block, fn); + } + + bsn := (bsn + (bsn_mod-1)) mod bsn_mod; /* previous bsn: bsn -1 */ + f_rlcmac_dl_block_exp_data(prev_dl_block, ?, bsn, exp_final_cs); + + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Verify DL CS above "cs max" set by VTY is never used */ +testcase TC_cs_max_dl() runs on RAW_PCU_Test_CT { + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + + /* Set maximum allowed DL CS to 3 */ + g_cs_initial_dl := 1; + g_cs_max_dl := 3; + f_pcuvty_set_allowed_cs_mcs(); + f_pcuvty_set_link_quality_ranges(); + + f_dl_data_exp_cs(f_rlcmac_block_int2cs_mcs(g_cs_max_dl, false)); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Check DL CS4 is used in good link conditions if allowed by config */ +testcase TC_dl_cs1_to_cs4() runs on RAW_PCU_Test_CT { + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + + /* Set initial DL CS to 1 & maximum allowed DL CS to 4 */ + g_cs_initial_dl := 1; + g_cs_max_dl := 4; + f_pcuvty_set_allowed_cs_mcs(); + f_pcuvty_set_link_quality_ranges(); + + f_dl_data_exp_cs(f_rlcmac_block_int2cs_mcs(g_cs_max_dl, false)); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Test the initial UL MCS set by VTY works fine */ +testcase TC_mcs_initial_ul() runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var PollFnCtx pollctx; + var EgprsChCodingCommand last_ch_coding; + var uint32_t unused_fn, sched_fn; + var GprsMS ms; + var CodingScheme exp_ul_mcs; + + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); + + /* Set initial UL MCS to 3 */ + g_mcs_initial_ul := 3; + exp_ul_mcs := f_rlcmac_block_int2cs_mcs(g_mcs_initial_ul, true); + f_pcuvty_set_allowed_cs_mcs(); + f_pcuvty_set_link_quality_ranges(); + + /* Take lqual (dB->cB) so that we stay in that MCS */ + ms.lqual_cb := g_mcs_lqual_ranges[2].low * 10; + + /* Send PACKET RESOURCE REQUEST to upgrade to EGPRS */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap_egprs_def)); + + if (not match(ms.ul_tbf.tx_cs_mcs, exp_ul_mcs)) { + setverdict(fail, "Wrong CS_MCS ", ms.ul_tbf.tx_cs_mcs, " received vs exp ", exp_ul_mcs); + f_shutdown(__BFILE__, __LINE__); + } + + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), pollctx.fn, nr := pollctx.tstrxbts); + + /* Send UL blocks, until we receive UL ACK/NACK and check we are in same initial CS: */ + while (true) { + f_ms_tx_ul_data_block(ms, f_rnd_octstring(10), cv := 15); + f_rx_rlcmac_dl_block(dl_block, unused_fn); + if (match(dl_block, tr_RLCMAC_DL_DUMMY_CTRL())) { + continue; + } + + if (not match(dl_block, tr_RLCMAC_UL_ACK_NACK_EGPRS(ul_tfi := ?))) { + setverdict(fail, "Failed to match Packet Uplink ACK / NACK:", dl_block); + f_shutdown(__BFILE__, __LINE__); + break; + } + + last_ch_coding := dl_block.ctrl.payload.u.ul_ack_nack.egprs.ch_coding_cmd; + break; + } + if (f_rlcmac_block_EgprsChCodingCommand2cs_mcs(last_ch_coding) != exp_ul_mcs) { + setverdict(fail, "Channel Coding does not match our expectations ", exp_ul_mcs, ": ", last_ch_coding); + f_shutdown(__BFILE__, __LINE__); + } + + /* Remaining UL blocks are used to make sure regardless of initial + * lqual, we can go lower at any time + * 0 dB, make sure we downgrade MCS */ + ms.lqual_cb := 0; + /* 5 UL blocks, check we are in same initial MCS: */ + f_ms_tx_ul_data_block_multi(ms, 5); + /* Enqueue RTS.req, expect DATA.req with UL ACK from the PCU */ + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, unused_fn); + last_ch_coding := dl_block.ctrl.payload.u.ul_ack_nack.egprs.ch_coding_cmd; + + if (last_ch_coding != CH_CODING_MCS1) { + setverdict(fail, "Channel Coding does not match our expectations (MCS-1): ", last_ch_coding); + f_shutdown(__BFILE__, __LINE__); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Test the maximum UL MCS set by VTY works fine */ +testcase TC_mcs_max_ul() runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var EgprsChCodingCommand last_ch_coding; + var PollFnCtx pollctx; + var uint32_t unused_fn, sched_fn; + var GprsMS ms; + + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); + + /* Set maximum allowed UL MCS to 5 */ + g_mcs_max_ul := 5; + f_pcuvty_set_allowed_cs_mcs(); + f_pcuvty_set_link_quality_ranges(); + + /* Send PACKET RESOURCE REQUEST to upgrade to EGPRS */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap_egprs_def)); + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), pollctx.fn, nr := pollctx.tstrxbts); + + ms.lqual_cb := 40*10; /* 40 dB */ + f_ms_tx_ul_data_block_multi(ms, 16); + + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, unused_fn); + last_ch_coding := dl_block.ctrl.payload.u.ul_ack_nack.egprs.ch_coding_cmd; + + if (last_ch_coding != CH_CODING_MCS5) { + setverdict(fail, "Channel Coding does not match our expectations (MCS-5): ", last_ch_coding); + f_shutdown(__BFILE__, __LINE__); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Test the initial DL CS set by VTY works fine */ +testcase TC_mcs_initial_dl() runs on RAW_PCU_Test_CT { + var octetstring data := f_rnd_octstring(10); + var CodingScheme exp_dl_cs_mcs; + var RlcmacDlBlock dl_block; + var uint32_t poll_fn; + var GprsMS ms; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); + + /* Set initial allowed DL MCS to 3 */ + g_mcs_initial_dl := 3; + exp_dl_cs_mcs := MCS_3; + /* Set maximum allowed DL MCS to 4 */ + g_mcs_max_dl := 4; + f_pcuvty_set_allowed_cs_mcs(); + f_pcuvty_set_link_quality_ranges(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* SGSN sends some DL data, PCU will page on CCCH (PCH) */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data, bssgp_ms_racap_egprs_def, imsi := ts_BSSGP_IMSI(ms.imsi))); + f_ms_exp_dl_tbf_ass_ccch(ms); + + /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */ + f_sleep(X2002); + f_rx_rlcmac_dl_block_exp_data(dl_block, poll_fn, data, 0, exp_dl_cs_mcs); + + /* ACK the DL block */ + f_dltbf_ack_block(ms.dl_tbf, dl_block, '1'B); + f_ms_tx_ul_block(ms, f_dltbf_ts_RLCMAC_DL_ACK_NACK(ms.dl_tbf, ischosen(dl_block.data_egprs)), + f_dl_block_ack_fn(dl_block, poll_fn)); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Verify DL MCS above "mcs max" set by VTY is never used */ +testcase TC_mcs_max_dl() runs on RAW_PCU_Test_CT { + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); + + /* Set maximum allowed DL CS to 3 */ + g_mcs_initial_dl := 1; + g_mcs_max_dl := 3; + f_pcuvty_set_allowed_cs_mcs(); + f_pcuvty_set_link_quality_ranges(); + + f_dl_data_exp_cs(f_rlcmac_block_int2cs_mcs(g_mcs_max_dl, true), bssgp_ms_racap_egprs_def); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Verify PCU drops TBF after some time of inactivity. */ +testcase TC_t3141() runs on RAW_PCU_Test_CT { + var PCUIF_info_ind info_ind; + var template (value) TsTrxBtsNum nr; + var BTS_PDTCH_Block data_msg; + var GprsMS ms; + var uint3_t rx_usf; + timer T_3141 := 1.0; + var boolean ul_tbf_usf_req := false; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + info_ind := valueof(ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + /* Only use 1 PDCH to simplify test: */ + f_PCUIF_PDCHMask_set(info_ind, '00000001'B, 0); + f_PCUIF_PDCHMask_set(info_ind, '00000000'B, (1 .. 7)); + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + f_vty_config2(PCUVTY, {"pcu"}, "timer T3141 1"); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Establish a one-phase access Uplink TBF */ + f_ms_establish_ul_tbf(ms); + + T_3141.start; + + /* Now we wait for PCU to transmit our USF */ + nr := ts_TsTrxBtsNum; + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); - var TBF_UL_establish_req est_req := { tbf_nr := 0, ra := hex2int('7B'H) }; - L1.send(est_req); - T.start; - /* FIXME: wait for confirm */ alt { - [] L1.receive(TBF_UL_establish_res:?) {} - [] L1.receive { repeat; } - [] T.timeout { - setverdict(fail, "Timeout establishing UL TBF"); - mtc.stop; + [] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + ?)) -> value data_msg { + if (ms.ul_tbf.usf[valueof(nr.ts_nr)] == USF_UNUSED) { + setverdict(fail, "Unexpected ts_nr ", valueof(nr.ts_nr), " without USF allocated"); + f_shutdown(__BFILE__, __LINE__); + } + + rx_usf := f_rlcmac_dl_block_get_usf(data_msg.dl_block); + if (rx_usf == ms.ul_tbf.usf[valueof(nr.ts_nr)]) { + /* PCU requests our USF, transmit WITHOUT tlli to avoid contention resolution success */ + ul_tbf_usf_req := true; + f_ms_tx_ul_data_block(ms, f_rnd_octstring(10), cv := 15, with_tlli := false, fn := f_next_pdch_block(data_msg.raw.fn)) + } else if (rx_usf == USF_UNUSED) { + if (data_msg.raw.fn >= ms.ul_tbf.start_time_fn) { + if (ul_tbf_usf_req) { + /* TBF was dropped by T3141, success */ + setverdict(pass); + break; + } else { + log("PCU never requested USF, unexpected"); + f_shutdown(__BFILE__, __LINE__); + } + } /* else: Keep waiting for TBF to be active by network */ + } else { + log("PCU requests ", rx_usf, ", we have ", ms.ul_tbf.usf[valueof(nr.ts_nr)]); + f_shutdown(__BFILE__, __LINE__); + } + + /* Make sure we don't receive a Ul ACK/NACK with TLLI set: */ + if (match(data_msg.dl_block, + tr_RLCMAC_UL_ACK_NACK_GPRS(ms.ul_tbf.tfi, + tr_UlAckNackGprs(tlli := ?, + acknack_desc := ?, + rel99 := *)))) + { + log("Received UL ACK/NACK with TLLI set"); + f_shutdown(__BFILE__, __LINE__); + } + + nr := ts_TsTrxBtsNum; + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + repeat; + } + [ul_tbf_usf_req] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + omit)) { + /* TBF was dropped by T3141, and PCU answered with an IDLE block to + our last RTS.req because there's no longer any MS listening on + the TS. */ + setverdict(pass); + break; + } + [] T_3141.timeout { + log("T_3141 expired but TBF is still active, unexpected"); + f_shutdown(__BFILE__, __LINE__); } + [] BTS.receive { + /* We should never receive non-dummy messages, aka UL ACK/NACK, + * because we never sent the TLLI to the PCU */ + setverdict(fail, "Unexpected BTS message"); + f_shutdown(__BFILE__, __LINE__); + } } - T.stop; + + f_shutdown(__BFILE__, __LINE__, final := true); } -/* compute a random TLLI; FIXME: what about TLLI prefix / local/foreign/...? */ -function f_random_tlli() return GprsTlli { - var GprsTlli tlli := f_rnd_octstring(4); - return tlli; +/* Validate what happens when RACH to get UL TBF and then PCU receives no UL + * data. It should end up in N3101 reaching N3101_MAX and finally triggering + * T3169. See OS#5033 */ +testcase TC_n3101_max_t3169() runs on RAW_PCU_Test_CT { + var PCUIF_info_ind info_ind; + var template (value) TsTrxBtsNum nr; + var BTS_PDTCH_Block data_msg; + var GprsMS ms; + var uint3_t rx_usf; + const integer N3101_MAX := 9; /* N3101 shall be greater than 8 */ + var integer n3101 := 0; + timer T_3169 := 1.0; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + info_ind := valueof(ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + info_ind.n3101 := N3101_MAX; + info_ind.t3169 := 1; + f_init_raw(testcasename(), info_ind); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Establish UL TBF */ + f_ms_establish_ul_tbf(ms); + + /* Now we wait for PCU to transmit our USF */ + nr := ts_TsTrxBtsNum; + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + + alt { + [] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + ?)) -> value data_msg { + if (ms.ul_tbf.usf[valueof(nr.ts_nr)] == USF_UNUSED) { + setverdict(fail, "Unexpected ts_nr ", valueof(nr.ts_nr), " without USF allocated"); + f_shutdown(__BFILE__, __LINE__); + } + + rx_usf := f_rlcmac_dl_block_get_usf(data_msg.dl_block); + if (rx_usf == ms.ul_tbf.usf[valueof(nr.ts_nr)]) { + log("PCU requests our USF ", rx_usf, ", n3101=", n3101); + n3101 := n3101 + 1; + if (n3101 > N3101_MAX + 1) { //+1: DL<->UL FN offset + setverdict(fail, "Reached ", n3101, " > ", N3101_MAX + 1, " (N3101_MAX+1) and PCU still sends us USFs"); + f_shutdown(__BFILE__, __LINE__); + } + } else if (rx_usf == USF_UNUSED and n3101 == N3101_MAX + 1) { + /* If we already received USFs for us and we don't receive them anymore, that means the TBF entered T3169 */ + log("PCU stopped requesting USF ", ms.ul_tbf.usf[valueof(nr.ts_nr)]); + if (not T_3169.running) { + log("T3169 started"); + T_3169.start; + } + } else if(rx_usf == USF_UNUSED and n3101 > 0) { + setverdict(fail, "PCU stopped requesting USFs too early: ", n3101, " < ", N3101_MAX, " (N3101_MAX)"); + f_shutdown(__BFILE__, __LINE__); + } else { + log("PCU requests ", rx_usf, ", we have ", ms.ul_tbf.usf[valueof(nr.ts_nr)]); + } + nr := ts_TsTrxBtsNum; + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + repeat; + } + /* We may already receive empty (idle) blocks before our own TTCN3 timer + * triggers due to the TBF being released. Keep going until our T_3169 triggers. */ + [n3101 == N3101_MAX + 1] as_pcuif_rx_ignore_empty(nr); + [] T_3169.timeout { + log("T_3169 expired"); + /* Done in alt */ + } + [] BTS.receive { + setverdict(fail, "Unexpected BTS message"); + f_shutdown(__BFILE__, __LINE__); + } + } + + /* Now that T3169 has expired, establishing a Ul TBF should provide same + /* USFs as per previous TBF since they were freed at expiration time: */ + var uint3_t old_usf[8] := ms.ul_tbf.usf; + var uint5_t old_tfi := ms.ul_tbf.tfi; + f_ms_establish_ul_tbf(ms); + if (old_tfi != ms.ul_tbf.tfi) { + setverdict(fail, "Unexpected TFI change: ", ms.ul_tbf.tfi, " vs exp ", old_tfi); + f_shutdown(__BFILE__, __LINE__); + } + for (var integer i := 0; i < 8; i := i +1) { + if (ms.ul_tbf.usf[i] != old_usf[i]) { + setverdict(fail, "Unexpected USF change: ", ms.ul_tbf.usf[i], " vs exp ", old_usf[i]); + f_shutdown(__BFILE__, __LINE__); + } + } + + f_shutdown(__BFILE__, __LINE__, final := true); } -/* Compute the frame number of the uplink block based on current fn + rrbp */ -function f_rrbp_fn(GsmFrameNumber fn, MacRrbp rrbp) return GsmFrameNumber { - var integer add; - select (rrbp) { - case (RRBP_Nplus13_mod_2715648) { - add := 13; + +/* Verify after N3103_MAX is reached, T3169 is started and upon timeout TBF is + freed and no longer available. Trigger it by sending a few UL blocks CTRL ACKING + the final UL ACK sent at us. */ +testcase TC_n3103_max_t3169() runs on RAW_PCU_Test_CT { + var PCUIF_info_ind info_ind; + var BTS_PDTCH_Block data_msg; + var RlcmacDlBlock dl_block; + var uint32_t sched_fn; + var template (value) TsTrxBtsNum nr; + var template RlcmacDlBlock exp_ul_ack; + var template UlAckNackGprs exp_ul_ack_sub; + var GprsMS ms; + const integer N3103_MAX := 2; /* N3103 is usually somewhere 2-5 */ + var integer N3103 := 0; + timer T_3169 := 1.0; + + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + info_ind := valueof(ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + info_ind.n3103 := N3103_MAX; + info_ind.t3169 := 1; + f_init_raw(testcasename(), info_ind); + + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); + + /* Wait until PCU starts requesting for UL block on this TBF: */ + f_ms_wait_usf(ms); + + f_ms_tx_ul_data_block_multi(ms, 5, with_tlli := true); + exp_ul_ack_sub := tr_UlAckNackGprs(*, tr_AckNackDescription('1'B), *); + exp_ul_ack := tr_RLCMAC_UL_ACK_NACK_GPRS(ms.ul_tbf.tfi, exp_ul_ack_sub); + + nr := ts_TsTrxBtsNum; + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + alt { + [N3103 < N3103_MAX] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + exp_ul_ack)) -> value data_msg { + if (not f_dl_block_rrbp_valid(data_msg.dl_block)) { + setverdict(fail, "Unexpected DL BLOCK has no RRBP: ", data_msg.dl_block); + f_shutdown(__BFILE__, __LINE__); } - case (RRBP_Nplus17_or_18_mod_2715648) { - add := 17; /* FIXME: What about 'or 18'? */ + + nr := ts_TsTrxBtsNum; + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + N3103 := N3103 + 1; + if (N3103 == N3103_MAX) { + /* At this point in time (N3103_MAX reached), PCU is + * moving the TBF to RELEASE state so no data/ctrl for + * it is tx'ed, hence the dummy blocks: */ + T_3169.start; } - case (RRBP_Nplus21_or_22_mod_2715648) { - add := 21; /* FIXME: What about 'or 22'? */ + repeat; + } + [N3103 >= N3103_MAX] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + exp_ul_ack)) -> value data_msg { + setverdict(fail, "Unexpected UL ACK/NACK after reaching N3103_MAX"); + f_shutdown(__BFILE__, __LINE__); + } + [] as_ms_rx_ignore_dummy(ms, nr); + [] as_pcuif_rx_ignore_empty(nr); + [T_3169.running] T_3169.timeout { + log("T_3169 timeout"); + /* Done in alt, wait for pending RTS initiated previously in + * above case before continuing (expect /* Dummy block): */ + BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + tr_RLCMAC_DL_DUMMY_CTRL)); } - case (RRBP_Nplus26_mod_2715648) { - add := 26; + [] BTS.receive { + setverdict(fail, "Unexpected BTS message"); + f_shutdown(__BFILE__, __LINE__); + } + } + + /* Now that T3169 has expired, establishing a Ul TBF should provide same + * USFs as per previous TBF since they were freed at expiration time: */ + var uint3_t old_usf[8] := ms.ul_tbf.usf; + var uint5_t old_tfi := ms.ul_tbf.tfi; + f_ms_establish_ul_tbf(ms); + if (old_tfi != ms.ul_tbf.tfi) { + setverdict(fail, "Unexpected TFI change: ", ms.ul_tbf.tfi, " vs exp ", old_tfi); + f_shutdown(__BFILE__, __LINE__); + } + for (var integer i := 0; i < 8; i := i +1) { + if (ms.ul_tbf.usf[i] != old_usf[i]) { + setverdict(fail, "Unexpected USF change: ", ms.ul_tbf.usf[i], " vs exp ", old_usf[i]); + f_shutdown(__BFILE__, __LINE__); } } - return (fn + add) mod 2715648; + + f_shutdown(__BFILE__, __LINE__, final := true); } +/* Verify that a Downlink TBF is kept available until T3191 fires, at which + * point the TBF is no longer available. In order to get to start of T3191, we + * have to wait for x2031 since that marks the IDLE TBF time, that is, the delay + * until TBF release procedure starts after draining DL queue. */ +testcase TC_x2031_t3191() runs on RAW_PCU_Test_CT { + var PCUIF_info_ind info_ind; + var RlcmacDlBlock dl_block; + var octetstring data1 := f_rnd_octstring(200); + var octetstring data2 := f_rnd_octstring(10); + var uint32_t dl_fn; + var template (value) TsTrxBtsNum nr; + var BTS_PDTCH_Block data_msg; + var GprsMS ms; -function f_bssgp_wait_ul_ud(template PDU_BSSGP exp) runs on dummy_CT { - timer T := 5.0; - T.start; + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + info_ind := valueof(ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + /* Set timer to 1 sec (default 5) to speedup test: */ + info_ind.t3191 := 1; + f_init_raw(testcasename(), info_ind); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* SGSN sends some DL data, PCU will page on CCCH (PCH) */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data1, imsi := ts_BSSGP_IMSI(ms.imsi))); + f_ms_exp_dl_tbf_ass_ccch(ms); + + /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */ + f_sleep(X2002); + + while (true) { + f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, ?, ?); + + /* Keep Ack/Nack description updated (except for last BSN) */ + f_acknackdesc_ack_block(ms.dl_tbf.acknack_desc, dl_block); + + if (f_dl_block_rrbp_valid(dl_block)) { + f_ms_tx_ul_block(ms, ts_RLCMAC_DL_ACK_NACK(ms.dl_tbf.tfi, ms.dl_tbf.acknack_desc), + f_dl_block_ack_fn(dl_block, dl_fn)); + break; + } + } + + /* Now we wait for IDLE TBF timer (X2031) to time out and receive a FINAL ACK */ + nr := ts_TsTrxBtsNum; + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + alt { + [] as_ms_rx_ignore_dummy(ms, nr); + [] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + ?)) -> value data_msg { + if (data_msg.dl_block.data.mac_hdr.hdr_ext.fbi) { + log("Received FINAL_ACK"); + ms.dl_tbf.acknack_desc.final_ack := '1'B; + break; + } + if (f_dl_block_rrbp_valid(data_msg.dl_block)) { + f_acknackdesc_ack_block(ms.dl_tbf.acknack_desc, data_msg.dl_block); + f_ms_tx_ul_block(ms, ts_RLCMAC_DL_ACK_NACK(ms.dl_tbf.tfi, ms.dl_tbf.acknack_desc), + f_dl_block_ack_fn(dl_block, data_msg.raw.fn)); + } + nr := ts_TsTrxBtsNum; + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + repeat; + } + [] BTS.receive { + setverdict(fail, "Unexpected BTS message"); + f_shutdown(__BFILE__, __LINE__); + } + } + + /* Avoid ACKing the last RLC data block on purpose here, wait for t3191 + to time out. We simply sleep instead of requesting blocks because + otherwise retransmissions would keep restarting the timer. */ + f_sleep(int2float(info_ind.t3191)); + + /* The TBF should be freed now, so new data should trigger an Assignment: */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data2, imsi := ts_BSSGP_IMSI(ms.imsi))); + f_ms_exp_dl_tbf_ass_ccch(ms); + + /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */ + f_sleep(X2002); + /* Now that we confirmed the new assignment in the dl-tbf, lets receive the data and ack it */ + f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data2, 0); + f_acknackdesc_ack_block(ms.dl_tbf.acknack_desc, dl_block, '1'B); + f_ms_tx_ul_block(ms, ts_RLCMAC_DL_ACK_NACK(ms.dl_tbf.tfi, ms.dl_tbf.acknack_desc), + f_dl_block_ack_fn(dl_block, dl_fn)); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Same as TC_zero_x2031_t3191, but this time without x2031 (immediate FINAL_ACK). */ +testcase TC_zero_x2031_t3191() runs on RAW_PCU_Test_CT { + var PCUIF_info_ind info_ind; + var RlcmacDlBlock dl_block; + var octetstring data1 := f_rnd_octstring(1400); + var octetstring data2 := f_rnd_octstring(10); + var uint32_t dl_fn; + var GprsMS ms; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + info_ind := valueof(ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + /* Set timer to 1 sec (default 5) to speedup test: */ + info_ind.t3191 := 1; + f_init_raw(testcasename(), info_ind); + + f_vty_config2(PCUVTY, {"pcu"}, "timer X2031 0"); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* SGSN sends some DL data, PCU will page on CCCH (PCH) */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data1, imsi := ts_BSSGP_IMSI(ms.imsi))); + f_ms_exp_dl_tbf_ass_ccch(ms); + + /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */ + f_sleep(X2002); + + /* Send enough DL data to at least be able to DL ACK once (excl the + * FINAL_ACK one), so that PCU sees we are listening in PDCH and avoids + * other code paths like trying to Imm Assign on CCCH again, etc.. */ + while (true) { + f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, ?, ?); + + if (dl_block.data.mac_hdr.hdr_ext.fbi) { + log("Received FINAL_ACK"); + ms.dl_tbf.acknack_desc.final_ack := '1'B; + break; + } + + /* Keep Ack/Nack description updated (except for last BSN) */ + f_acknackdesc_ack_block(ms.dl_tbf.acknack_desc, dl_block); + + if (f_dl_block_rrbp_valid(dl_block)) { + f_ms_tx_ul_block(ms, ts_RLCMAC_DL_ACK_NACK(ms.dl_tbf.tfi, ms.dl_tbf.acknack_desc), + f_dl_block_ack_fn(dl_block, dl_fn)); + } + } + + /* Avoid ACKing the last RLC data block on purpose here, wait for t3191 + to time out. We simply sleep instead of requesting blocks because + otherwise retransmissions would keep restarting the timer. */ + f_sleep(int2float(info_ind.t3191)); + + /* The TBF should be freed now, so new data should trigger an Assignment: */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data2, imsi := ts_BSSGP_IMSI(ms.imsi))); + f_ms_exp_dl_tbf_ass_ccch(ms); + + /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */ + f_sleep(X2002); + /* Now that we confirmed the new assignment in the dl-tbf, lets receive the data and ack it */ + f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data2, 0); + f_acknackdesc_ack_block(ms.dl_tbf.acknack_desc, dl_block, '1'B); + f_ms_tx_ul_block(ms, ts_RLCMAC_DL_ACK_NACK(ms.dl_tbf.tfi, ms.dl_tbf.acknack_desc), + f_dl_block_ack_fn(dl_block, dl_fn)); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Verify that a Downlink TBF can be assigned using PACCH shortly after the + * release of prev DL TBF due to MS staying in PDCH for a while (T3192, in PCU + * T3193) after DL TBF release */ +testcase TC_t3193() runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var octetstring data := f_rnd_octstring(10); + var boolean ok; + var uint32_t sched_fn; + var uint32_t dl_fn; + var GprsMS ms; + var AckNackDescription ack_nack_desc := valueof(t_AckNackDescription_init); + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); + + /* Disable "idle DL TBF alive" timer, to make the test easier and avoid + * having to keep receiving dummy LLC blocks for a while until the last + * block with FBI=1 is set. This way the first and only DL block is already + * the FBI one. */ + f_vty_config2(PCUVTY, {"pcu"}, "timer X2031 0"); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* SGSN sends some DL data, PCU will page on CCCH (PCH) */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data, imsi := ts_BSSGP_IMSI(ms.imsi))); + f_ms_exp_dl_tbf_ass_ccch(ms); + + /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */ + f_sleep(X2002); + f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data, 0); + if (dl_block.data.mac_hdr.hdr_ext.fbi == false) { + setverdict(fail, "Expected DL data block with FBI=1 but got FBI=0"); + f_shutdown(__BFILE__, __LINE__); + } + + /* ACK the DL block */ + f_acknackdesc_ack_block(ms.dl_tbf.acknack_desc, dl_block, '1'B); + f_ms_tx_ul_block(ms, ts_RLCMAC_DL_ACK_NACK(ms.dl_tbf.tfi, ms.dl_tbf.acknack_desc), + f_dl_block_ack_fn(dl_block, dl_fn)); + + /* Now that final DL block is ACKED and TBF is released, T3193 in PCU + (T3192 in MS) was started and until it fires the MS will be available + on PDCH in case new data arrives from SGSN. Let's verify it: */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data)); + f_ms_rx_pkt_ass_pacch(ms, sched_fn, tr_RLCMAC_DL_PACKET_ASS); + + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + + /* Now that we confirmed the new assignment in the dl-tbf, lets receive the data and ack it */ + f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data, 0); + f_acknackdesc_ack_block(ms.dl_tbf.acknack_desc, dl_block, '1'B); + f_ms_tx_ul_block(ms, ts_RLCMAC_DL_ACK_NACK(ms.dl_tbf.tfi, ms.dl_tbf.acknack_desc), + f_dl_block_ack_fn(dl_block, dl_fn)); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Verify after N3105_MAX is reached, T3195 is started and upon timeout TBF is + freed and no longer available. Trigger it by sending DL blocks and never DL + ACKing the data (which are requested through RRBP) */ +testcase TC_n3105_max_t3195() runs on RAW_PCU_Test_CT { + var PCUIF_info_ind info_ind; + var RlcmacDlBlock dl_block; + var octetstring data1 := f_rnd_octstring(1000); + var octetstring data2 := f_rnd_octstring(10); + var uint32_t dl_fn; + var template (value) TsTrxBtsNum nr; + var BTS_PDTCH_Block data_msg; + var GprsMS ms; + const integer N3105_MAX := 2; + var integer N3105 := 0; + timer T_3195 := 1.0; + var integer num_poll_recv := 0; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + info_ind := valueof(ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + /* Speedup test: */ + info_ind.n3105 := N3105_MAX; + info_ind.t3195 := 1; + f_init_raw(testcasename(), info_ind); + + /* Disable "MS delay release" timer, to avoid old DL data kept in cached + * MS and retransmitted after the TBF is released and later on created + * (because the MS is reused) */ + f_vty_config2(PCUVTY, {"pcu"}, "timer X2030 0"); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* SGSN sends some DL data, PCU will page on CCCH (PCH) */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data1, imsi := ts_BSSGP_IMSI(ms.imsi))); + f_ms_exp_dl_tbf_ass_ccch(ms); + + /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */ + f_sleep(X2002); + + /* Now we go on receiving DL data and not answering RRBP: */ + nr := ts_TsTrxBtsNum; + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); alt { - [] BSSGP[0].receive(exp) { - log("found matching BSSGP UL-UNITDATA PDU"); + [not T_3195.running] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + tr_RLCMAC_DATA)) -> value data_msg { + if (f_dl_block_rrbp_valid(data_msg.dl_block)) { + if (num_poll_recv == 0) { + /* ACK first one so PCU detects we are there and doesn't retransmit Imm Ass */ + f_acknackdesc_ack_block(ms.dl_tbf.acknack_desc, data_msg.dl_block); + f_ms_tx_ul_block(ms, ts_RLCMAC_DL_ACK_NACK(ms.dl_tbf.tfi, ms.dl_tbf.acknack_desc), + f_dl_block_ack_fn(data_msg.dl_block, data_msg.raw.fn)); + } else { + log("Ignoring RRBP ", num_poll_recv); + N3105 := N3105 + 1; + } + num_poll_recv := num_poll_recv + 1; + } + + nr := ts_TsTrxBtsNum; + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + repeat; + } + /* At this point in time (N3105_MAX reached), PCU already moved TBF to + * RELEASE state so no data for it is tx'ed, hence the dummy/idle blocks: + */ + [N3105 == N3105_MAX] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + tr_RLCMAC_DL_DUMMY_CTRL)) -> value data_msg { + if (not T_3195.running) { + T_3195.start; + /* We even send some new data, nothing should be sent to MS */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data1)); } + nr := ts_TsTrxBtsNum; + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + repeat; + } + /* We may already receive idle blocks before our own TTCN3 timer + * triggers due to the TBF being released. Keep going until our T_3195 triggers. */ + [N3105 == N3105_MAX] as_pcuif_rx_ignore_empty(nr); + [T_3195.running] T_3195.timeout { + log("T_3195 timeout"); + /* Done in alt, wait for pending RTS initiated previously in + * above case before continuing (expect empty block): */ + alt { + [] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + omit)); /* DONE, continue after altstep. */ + [] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + tr_RLCMAC_DL_DUMMY_CTRL)) { + setverdict(fail, "Rx unexpected DUMMY message, expected empty data block"); + f_shutdown(__BFILE__, __LINE__); + } + } + } + [] BTS.receive { + setverdict(fail, "Unexpected BTS message"); + f_shutdown(__BFILE__, __LINE__); + } + } + + /* after T_3195 timeout, TBF is released */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data2, imsi := ts_BSSGP_IMSI(ms.imsi))); + f_ms_exp_dl_tbf_ass_ccch(ms); + + /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */ + f_sleep(X2002); + f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data2, 0); + + /* ACK the DL block */ + f_acknackdesc_ack_block(ms.dl_tbf.acknack_desc, dl_block, '1'B); + f_ms_tx_ul_block(ms, ts_RLCMAC_DL_ACK_NACK(ms.dl_tbf.tfi, ms.dl_tbf.acknack_desc), + f_dl_block_ack_fn(dl_block, dl_fn)); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Verify configured T3172 is properly transmitted as WAIT_INDICATION in Pkt Access Reject in PACCH. */ +function f_TC_t3172(integer t3172_ms, BIT1 wait_ind_size) runs on RAW_PCU_Test_CT { + var PCUIF_info_ind info_ind; + var template IARRestOctets rest; + var BIT11 ra11; + var GprsMS ms; + var octetstring data := f_rnd_octstring(10); + var RlcmacDlBlock dl_block; + var template RlcmacDlBlock rej_tmpl; + var uint32_t dl_fn; + var uint32_t sched_fn; + var uint8_t wait_ind_val; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + info_ind := valueof(ts_PCUIF_INFO_default); + + /* Only the first TRX is enabled. */ + f_PCUIF_PDCHMask_set(info_ind, '00000000'B, (1 .. 7)); + f_PCUIF_PDCHMask_set(info_ind, '00000001'B, 0); + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + f_pcuvty_set_timer(3172, t3172_ms); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + var EGPRSPktChRequest req := { + one_phase := { + tag := '0'B, + multislot_class := '10101'B, + priority := '01'B, + random_bits := '101'B + } + }; + + /* We send 7 requests, the IUT gives us all available USFs (0..6) */ + for (var integer i := 0; i < 7; i := i + 1) { + req.one_phase.random_bits := int2bit(f_rnd_int(8), 3); + f_TC_egprs_pkt_chan_req(req, tr_IMM_TBF_ASS); + } + + /* SGSN sends some DL data, PCU will page on CCCH (PCH) */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data, imsi := ts_BSSGP_IMSI(ms.imsi))); + f_ms_exp_dl_tbf_ass_ccch(ms); + + /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */ + f_sleep(X2002); + f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data, 0); + + /* ACK the DL block */ + f_acknackdesc_ack_block(ms.dl_tbf.acknack_desc, dl_block, '1'B); + f_ms_tx_ul_block(ms, ts_RLCMAC_DL_ACK_NACK(ms.dl_tbf.tfi, ms.dl_tbf.acknack_desc, false, ts_ChannelReqDescription()), + f_dl_block_ack_fn(dl_block, dl_fn)); + + /* Since all USF are taken, we should receive a Reject: */ + + if (wait_ind_size == '0'B) { + wait_ind_val := t3172_ms / 1000; + } else { + wait_ind_val := t3172_ms / 20; + } + rej_tmpl := tr_RLCMAC_DL_CTRL(?, tr_RlcMacDlCtrl_PKT_ACC_REJ( + tr_PacketAccessRejectStruct_TLLI(ms.tlli, + wait_ind_val, + wait_ind_size))); + template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum; + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + alt { + [] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + rej_tmpl)); + [] BTS.receive { + setverdict(fail, "Unexpected BTS message"); + f_shutdown(__BFILE__, __LINE__); + } + } + f_shutdown(__BFILE__, __LINE__, final := true); +} +testcase TC_t3172_wait_ind_size0() runs on RAW_PCU_Test_CT { + /* size=0 means value is provided in seconds. Due to value being 8 + * bit, in the 20ms step case (size=1) the maximum value possible is 20 * 255 + * = 5100. Hence, values above it should use size=0 to be able to + * provide values in range. Let's use 6 seconds, 6000ms + */ + f_TC_t3172(6000, '0'B); +} +testcase TC_t3172_wait_ind_size1() runs on RAW_PCU_Test_CT { + f_TC_t3172(3000, '1'B); +} + +/* Verify PCU handles correctly Countdown Procedure based on BS_CV_MAX */ +testcase TC_countdown_procedure() runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var uint32_t sched_fn; + var octetstring total_payload; + var GprsMS ms; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); + + /* Wait until PCU starts requesting for UL block on this TBF: */ + f_ms_wait_usf(ms); + + /* Send one UL block (with TLLI since we are in One-Phase Access + contention resolution) and make sure it is ACKED fine. */ + total_payload := f_rnd_octstring(f_ultbf_payload_fill_length(ms.ul_tbf, true)); + /* Set CV = 15 to signal there's still more than BS_CV_MAX blocks to be sent */ + f_ms_tx_ul_data_block(ms, total_payload, cv := 15, with_tlli := true, fn := ms.ul_tbf.start_time_fn) + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); + /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + + /* Send enough blocks to test whole procedure: Until Nth block + (N=BS_CV_MAX), CV=15 is sent, and then the decreasing countdown value is sent. + */ + total_payload := total_payload & f_ms_tx_ul_data_block_multi(ms, 20); + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); + /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + + /* receive one message on BSSGP with all aggregated data in payload: */ + BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id, total_payload)); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Verify PCU handles correctly CS1..4 with all possible LLC payload sizes fitting alone in one RLC block */ +testcase TC_ul_all_sizes() runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var uint32_t dl_fn, sched_fn; + var octetstring payload; + var template (value) RlcmacUlBlock ul_data; + var template (value) LlcBlockHdr blk_hdr; + var template (value) LlcBlocks blocks; + var integer blk_len; + var CodingScheme tx_cs; + var GprsMS ms; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); + + /* Wait until PCU starts requesting for UL block on this TBF: */ + f_ms_wait_usf(ms); + + /* Send one UL block (with TLLI since we are in One-Phase Access + contention resolution) and make sure it is ACKED fine. */ + payload := f_rnd_octstring(16); /* 16 bytes fills the llc block (because TLLI takes 4 bytes) */ + blk_hdr := t_RLCMAC_LLCBLOCK_HDR(length_ind := lengthof(payload), + more := false, e := true); + blocks := { t_RLCMAC_LLCBLOCK(payload, blk_hdr) }; + /* Set CV = 15 to signal there's still more than BS_CV_MAX blocks to be sent */ + ul_data := t_RLCMAC_UL_DATA_TLLI(cs := ms.ul_tbf.tx_cs_mcs, + tfi := ms.ul_tbf.tfi, + cv := 15, + bsn := ms.ul_tbf.bsn, + blocks := blocks, + tlli := ms.tlli); + f_ultbf_inc_bsn(ms.ul_tbf); + f_ms_tx_ul_block(ms, ul_data, ms.ul_tbf.start_time_fn); + + /* ACK and check it was received fine */ + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); + /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + /* receive one message on BSSGP with all aggregated data in payload: */ + BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id, payload)); + + /* Test sending LLC PDUS of incrementing size */ + var integer max_size := 49; + for (var integer i := 1; i <= max_size; i := i + 1) { + var integer cv; + /* Enqueue DATA.ind (both TDMA frame and block numbers to be patched) */ + log("Sending DATA.ind with LLC payload size ", i); + if (i < max_size - g_bs_cv_max) { + cv := 15; + } else { + cv := max_size - i; + } + + blk_len := 3 + 1 + i; /* 3 Header bytes + LI byte + payload length */ + tx_cs := f_rlcmac_block_len_required_cs_mcs(blk_len, false); + payload := f_rnd_octstring(i); + blk_hdr := t_RLCMAC_LLCBLOCK_HDR(length_ind := lengthof(payload), + more := false, e := true); + blocks := { t_RLCMAC_LLCBLOCK(payload, blk_hdr) }; + /* Set CV = 15 to signal there's still more than BS_CV_MAX blocks to be sent */ + ul_data := t_RLCMAC_UL_DATA(cs := tx_cs, + tfi := ms.ul_tbf.tfi, + cv := cv, + bsn := ms.ul_tbf.bsn, + blocks := blocks); + f_ultbf_inc_bsn(ms.ul_tbf); + f_ms_tx_ul_block(ms, ul_data); + + /* receive one message on BSSGP with all aggregated data in payload: */ + BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id, payload)); + + /* we will receive UL ACK/NACK from time to time, handle it. */ + f_rx_rlcmac_dl_block(dl_block, dl_fn); + if (match(dl_block, tr_RLCMAC_DL_DUMMY_CTRL())) { + continue; + } + if (not match(dl_block, tr_RLCMAC_UL_ACK_NACK_GPRS(ul_tfi := ?)) and + not match(dl_block, tr_RLCMAC_UL_ACK_NACK_EGPRS(ul_tfi := ?))) { + setverdict(fail, "Failed to match Packet Uplink ACK / NACK:", dl_block); + f_shutdown(__BFILE__, __LINE__); + } + + log("Rx Packet Uplink ACK / NACK"); + sched_fn := f_rrbp_ack_fn(dl_fn, dl_block.ctrl.mac_hdr.rrbp); + /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +function f_TC_ul_data_toolong_fills_padding_cs(inout GprsMS ms, CodingScheme cs, integer cv) runs on RAW_PCU_Test_CT { + var octetstring payload; + var template (value) RlcmacUlBlock ul_data; + var template (value) LlcBlockHdr blk_hdr; + var template (value) LlcBlocks blocks; + var integer block_len, max_valid_data_len; + timer T; + + block_len := f_rlcmac_cs_mcs2block_len(cs); + /* We need to send with TLLI since we are in One-Phase Access Contenion + * resolution), so that's -4 bytes of data, -3 for headers, -1 for LI + * indicator, -1 for spare bits octet at the end */ + max_valid_data_len := block_len - 4 - 3 - 1 - 1; + payload := f_rnd_octstring(max_valid_data_len + 1); /* +1 to write LLC data on last padding octet */ + blk_hdr := t_RLCMAC_LLCBLOCK_HDR(length_ind := lengthof(payload), + more := false, e := true); + blocks := { t_RLCMAC_LLCBLOCK(payload, blk_hdr) }; + ul_data := t_RLCMAC_UL_DATA_TLLI(cs := cs, + tfi := ms.ul_tbf.tfi, + cv := cv, + bsn := ms.ul_tbf.bsn, + blocks := blocks, + tlli := ms.tlli); + f_ultbf_inc_bsn(ms.ul_tbf); + f_ms_tx_data_ind(ms, enc_RlcmacUlBlock(valueof(ul_data))); + + T.start(0.5); + alt { + [] BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id, ?)) { + setverdict(fail, "LLC PDU in Malformed RLC block was forwarded"); + f_shutdown(__BFILE__, __LINE__); + } [] T.timeout { - setverdict(fail, "Timeout waiting for ", exp); - mtc.stop; + setverdict(pass); } } } +/* Verify PCU finds out incorrectly formated RLC block and discards it. This + blocks intentionally contain last byte of data placed in last byte of RLC + containing padding/spare bits, which is incorrect. Spare bits exist and are + described for CS2..4 in 3GPP TS 44.060 Table 10.2.1: "RLC data block size, + discounting padding in octet" */ +testcase TC_ul_data_toolong_fills_padding() runs on RAW_PCU_Test_CT { + var GprsMS ms; + var integer block_len, max_valid_data_len; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); + + /* Wait until PCU starts requesting for UL block on this TBF: */ + f_ms_wait_usf(ms); + + f_TC_ul_data_toolong_fills_padding_cs(ms, CS_2, 2); + f_TC_ul_data_toolong_fills_padding_cs(ms, CS_3, 1); + f_TC_ul_data_toolong_fills_padding_cs(ms, CS_4, 0); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Test scenario where MS wants to send some data on PDCH against SGSN and it is + * answered, so TBFs for uplink and later for downlink are created. + */ +private function f_TC_mo_ping_pong_1phase_access(template (present) CodingScheme exp_cs_mcs := ?) runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var octetstring data := f_rnd_octstring(10); + var uint32_t sched_fn; + var uint32_t dl_fn; + var GprsMS ms; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); + + /* Wait until PCU starts requesting for UL block on this TBF: */ + f_ms_wait_usf(ms); + + /* Send one UL block (with TLLI since we are in One-Phase Access + contention resolution) and make sure it is ACKED fine */ + f_ms_tx_ul_data_block_multi(ms, 1, with_tlli := true, fn := ms.ul_tbf.start_time_fn); + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); + /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + + /* UL block should be received in SGSN */ + BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id)); + + /* Now SGSN sends some DL data, PCU will page on CCCH (PCH) */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data, imsi := ts_BSSGP_IMSI(ms.imsi))); + f_ms_exp_dl_tbf_ass_ccch(ms); + + /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */ + f_sleep(X2002); + f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data, 0, exp_cs_mcs); + + /* ACK the DL block */ + f_acknackdesc_ack_block(ms.dl_tbf.acknack_desc, dl_block, '1'B); + f_ms_tx_ul_block(ms, ts_RLCMAC_DL_ACK_NACK(ms.dl_tbf.tfi, ms.dl_tbf.acknack_desc), + f_dl_block_ack_fn(dl_block, dl_fn)); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Test scenario where MS wants to send some data on PDCH against SGSN and it is + * answered, so TBFs for uplink and later for downlink are created. + */ +testcase TC_mo_ping_pong() runs on RAW_PCU_Test_CT { + var template (present) CodingScheme exp_cs_mcs := cs_gprs_any; + f_TC_mo_ping_pong_1phase_access(exp_cs_mcs); +} + +/* Test scenario where MS wants to send some data on PDCH against SGSN and it is + * answered, so TBFs for uplink and later for downlink are created. + */ +private function f_TC_mo_ping_pong_2phase_access(PCUIF_Flags ind_flags, + template (value) MSRadioAccessCapabilityV ms_racap, + template (present) CodingScheme exp_ul_cs_mcs := ?, + template (present) CodingScheme exp_dl_cs_mcs := ?) +runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var octetstring data := f_rnd_octstring(10); + var PollFnCtx pollctx; + var uint32_t sched_fn; + var uint32_t dl_fn; + var uint32_t unused_fn; + var GprsMS ms; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), ts_PCUIF_INFO_default(ind_flags)); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Send PACKET RESOURCE REQUEST to upgrade to EGPRS */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap)); + + if (not match(ms.ul_tbf.tx_cs_mcs, exp_ul_cs_mcs)) { + setverdict(fail, "Wrong CS_MCS ", ms.ul_tbf.tx_cs_mcs, " received vs exp ", exp_ul_cs_mcs); + f_shutdown(__BFILE__, __LINE__); + } + + /* Send one UL block (without TLLI since we are in Second-Phase Access) + and make sure it is ACKED fine */ + f_ms_tx_ul_data_block_multi(ms, 1); + + /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), pollctx.fn, nr := pollctx.tstrxbts); + + /* UL block should be received in SGSN */ + BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id)); + + /* Now SGSN sends some DL data, PCU will page on PACCH */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data)); + /* Sleep a bit to make sure PCU received the DL data and hence it will be prioritized by scheduler: */ + f_sleep(0.5); + f_ms_rx_pkt_ass_pacch(ms, sched_fn, tr_RLCMAC_DL_PACKET_ASS); + /* DL Ass sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + + /* PCU acks the UL data after having received CV=0) */ + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, unused_fn); + + /* After acking the dl assignment, dl tbf goes into FLOW state and PCU will provide DL data when BTS asks for it */ + f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data, 0, exp_dl_cs_mcs); + + /* ACK the DL block */ + f_dltbf_ack_block(ms.dl_tbf, dl_block, '1'B); + f_ms_tx_ul_block(ms, f_dltbf_ts_RLCMAC_DL_ACK_NACK(ms.dl_tbf, ischosen(dl_block.data_egprs)), + f_dl_block_ack_fn(dl_block, dl_fn)); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +testcase TC_mo_ping_pong_with_ul_racap() runs on RAW_PCU_Test_CT { + var template (present) CodingScheme exp_ul_cs_mcs := cs_gprs_any; + var template (present) CodingScheme exp_dl_cs_mcs := cs_gprs_any; + + f_TC_mo_ping_pong_2phase_access(c_PCUIF_Flags_noMCS, ms_racap_gprs_def, exp_ul_cs_mcs, exp_dl_cs_mcs); + + var StatsDExpects expect := { + { name := "TTCN3.bts.0.rach.requests", mtype := "c", min := 1, max := 1 }, + { name := "TTCN3.bts.0.rach.requests.11bit", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.rach.requests.one_phase", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.rach.requests.two_phase", mtype := "c", min := 1, max := 1 }, + { name := "TTCN3.bts.0.immediate.assignment_UL", mtype := "c", min := 1, max := 1 }, + { name := "TTCN3.bts.0.immediate.assignment_ul.one_phase", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.immediate.assignment_ul.two_phase", mtype := "c", min := 1, max := 1 }, + { name := "TTCN3.bts.0.immediate.assignment_ul.contention_resolution_success", mtype := "c", min := 1, max := 1 }, + { name := "TTCN3.bts.0.immediate.assignment_DL", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.pkt.ul_assignment", mtype := "c", min := 1, max := 1 } + }; + f_statsd_expect(expect); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +testcase TC_mo_ping_pong_with_ul_racap_egprs_only() runs on RAW_PCU_Test_CT { + var template (present) CodingScheme exp_ul_cs_mcs := mcs_egprs_any; + var template (present) CodingScheme exp_dl_cs_mcs := mcs_egprs_any; + + f_TC_mo_ping_pong_2phase_access(c_PCUIF_Flags_default, ms_racap_egprs_def, exp_ul_cs_mcs, exp_dl_cs_mcs); + + var StatsDExpects expect := { + { name := "TTCN3.bts.0.rach.requests", mtype := "c", min := 1, max := 1 }, + { name := "TTCN3.bts.0.rach.requests.11bit", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.rach.requests.one_phase", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.rach.requests.two_phase", mtype := "c", min := 1, max := 1 }, + { name := "TTCN3.bts.0.immediate.assignment_UL", mtype := "c", min := 1, max := 1 }, + { name := "TTCN3.bts.0.immediate.assignment_ul.one_phase", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.immediate.assignment_ul.two_phase", mtype := "c", min := 1, max := 1 }, + { name := "TTCN3.bts.0.immediate.assignment_ul.contention_resolution_success", mtype := "c", min := 1, max := 1 }, + { name := "TTCN3.bts.0.immediate.assignment_DL", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.pkt.ul_assignment", mtype := "c", min := 1, max := 1 } + }; + f_statsd_expect(expect); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +testcase TC_force_two_phase_access() runs on RAW_PCU_Test_CT { + /* Configure PCU to force two phase access */ + g_force_two_phase_access := true; + + var CodingScheme exp_ul_cs_mcs := f_rlcmac_block_int2cs_mcs(g_mcs_initial_ul, false); + var template (present) CodingScheme exp_dl_cs_mcs := cs_gprs_any; + + f_TC_mo_ping_pong_2phase_access(c_PCUIF_Flags_noMCS, ms_racap_gprs_def, exp_ul_cs_mcs, exp_dl_cs_mcs); + + var StatsDExpects expect := { + { name := "TTCN3.bts.0.rach.requests", mtype := "c", min := 1, max := 1 }, + { name := "TTCN3.bts.0.rach.requests.11bit", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.rach.requests.one_phase", mtype := "c", min := 1, max := 1 }, + { name := "TTCN3.bts.0.rach.requests.two_phase", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.immediate.assignment_UL", mtype := "c", min := 1, max := 1 }, + { name := "TTCN3.bts.0.immediate.assignment_ul.one_phase", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.immediate.assignment_ul.two_phase", mtype := "c", min := 1, max := 1 }, + { name := "TTCN3.bts.0.immediate.assignment_ul.contention_resolution_success", mtype := "c", min := 1, max := 1 }, + { name := "TTCN3.bts.0.immediate.assignment_DL", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.pkt.ul_assignment", mtype := "c", min := 1, max := 1 } + }; + f_statsd_expect(expect); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Test scenario where SGSN wants to send some data against MS and it is + * answered by the MS on PDCH, so TBFs for downlink and later for uplink are created. + */ +private function f_TC_mt_ping_pong(template (omit) MSRadioAccessCapabilityV_BSSGP ms_racap := omit, + template (present) CodingScheme exp_cs_mcs := ?) +runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var octetstring data := f_rnd_octstring(10); + var uint32_t sched_fn; + var uint32_t dl_fn; + var GprsMS ms; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* SGSN sends some DL data, PCU will page on CCCH (PCH) */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data, ms_racap, imsi := ts_BSSGP_IMSI(ms.imsi))); + f_ms_exp_dl_tbf_ass_ccch(ms); + + /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */ + f_sleep(X2002); + /* Skip potential dummy blocks before X2002 triggers at PCU after us: */ + dl_fn := f_rx_rlcmac_dl_block_skip_dummy(dl_block, max_dummy := 10); + + f_rlcmac_dl_block_exp_data(dl_block, data, 0, exp_cs_mcs); + + /* ACK the DL block, and request UL TBF at the same time */ + f_dltbf_ack_block(ms.dl_tbf, dl_block, '1'B); + f_ms_tx_ul_block(ms, f_dltbf_ts_RLCMAC_DL_ACK_NACK(ms.dl_tbf, ischosen(dl_block.data_egprs), c_ChReqDesc_default), + f_dl_block_ack_fn(dl_block, dl_fn)); + + /* Expect UL ass */ + f_ms_rx_pkt_ass_pacch(ms, sched_fn, tr_RLCMAC_UL_PACKET_ASS); + + /* Send one UL block (with TLLI since we are in One-Phase Access + contention resolution) and make sure it is ACKED fine */ + f_ms_tx_ul_data_block_multi(ms, 1, with_tlli := true); + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); + /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + + /* UL block should be received in SGSN */ + BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id)); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +testcase TC_mt_ping_pong() runs on RAW_PCU_Test_CT { + var template (present) CodingScheme exp_cs_mcs := cs_gprs_any; + f_TC_mt_ping_pong(omit, exp_cs_mcs); +} + +/* TC_mt_ping_pong, but DL-UNITDATA contains RA Access capability with (M)CS +/* information about the MS */ +testcase TC_mt_ping_pong_with_dl_racap() runs on RAW_PCU_Test_CT { + var template (present) CodingScheme exp_cs_mcs := cs_gprs_any; + f_TC_mt_ping_pong(bssgp_ms_racap_gprs_def, exp_cs_mcs); +} + +/* Verify that if PCU doesn't get one of the intermediate UL data blocks in a UL + * TBF, it will request retransmission through UL ACK/NACK (with missing block + * in its bitmap) when CV=0 is received (and hence it knows no more data is to + * be transferred). + */ +testcase TC_ul_intermediate_retrans() runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var template (value) RlcmacUlBlock ul_data; + var uint32_t sched_fn; + var octetstring total_payload; + var octetstring payload; + var octetstring lost_payload; + var uint5_t tfi; + var GprsMS ms; + var uint32_t payload_fill_len; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); + tfi := ms.ul_tbf.tfi; + + /* Wait until PCU starts requesting for UL block on this TBF: */ + f_ms_wait_usf(ms); + + /* Send one UL block (with TLLI since we are in One-Phase Access + contention resolution) and make sure it is ACKED fine. */ + payload := f_rnd_octstring(f_ultbf_payload_fill_length(ms.ul_tbf, true)); /* 16 bytes fills the llc block (because TLLI takes 4 bytes) */ + f_ms_tx_ul_data_block(ms, payload, cv := 15, with_tlli := true, fn := ms.ul_tbf.start_time_fn); + + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); + /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + total_payload := payload; + + payload_fill_len := f_ultbf_payload_fill_length(ms.ul_tbf); + + /* Send 2 packets, skip 1 (inc bsn) and send another one */ + payload := f_rnd_octstring(payload_fill_len); + f_ms_tx_ul_data_block(ms, payload, cv := 15); + total_payload := total_payload & payload; + + payload := f_rnd_octstring(payload_fill_len); + f_ms_tx_ul_data_block(ms, payload, cv := 15); + total_payload := total_payload & payload; + + lost_payload := f_rnd_octstring(payload_fill_len); + ms.ul_tbf.bsn := ms.ul_tbf.bsn + 1; /* LOST PAYLOAD bsn=3, will be retransmitted, next bsn is increased +2 */ + total_payload := total_payload & lost_payload; + + payload := f_rnd_octstring(payload_fill_len) + f_ms_tx_ul_data_block(ms, payload, cv := 15); + total_payload := total_payload & payload; + + /* Send enough blocks to finish the transmission (since we were sending BSN=15, send BS_CV_MAX packets) */ + total_payload := total_payload & f_ms_tx_ul_data_block_multi(ms, g_bs_cv_max); + + /* On CV=0, we'll receive a UL ACK asking about missing block */ + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); + /* TODO: check ack ack bitmap (URBB) */ + ul_data := t_RLCMAC_UL_DATA(cs := ms.ul_tbf.tx_cs_mcs, + tfi := tfi, + cv := 15, + bsn := 3, + blocks := {t_RLCMAC_LLCBLOCK(lost_payload)}); + f_ms_tx_ul_block(ms, ul_data); + + /* Now final ack is recieved */ + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); + /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + + /* receive one message on BSSGP with all aggregated data in payload: */ + BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id, total_payload)); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Verify that if PCU doesn't get an ACK for first DL block after IMM ASS, it + * will retry by retransmitting both the IMM ASS + DL block after poll (ack) + * timeout occurs (specified by sent RRBP on DL block). */ +testcase TC_imm_ass_dl_block_retrans() runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var octetstring data := f_rnd_octstring(10); + var uint32_t dl_fn; + var GprsMS ms; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* SGSN sends some DL data, PCU will page on CCCH (PCH) */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data, imsi := ts_BSSGP_IMSI(ms.imsi))); + f_ms_exp_dl_tbf_ass_ccch(ms); + + /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */ + f_sleep(X2002); + f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data, 0); + + /* Now we don't ack the dl block (emulate MS failed receiveing IMM ASS + * or GPRS DL, or DL ACK was lost for some reason). As a result, PCU + * should retrigger IMM ASS + GPRS DL procedure after poll timeout. */ + f_ms_exp_dl_tbf_ass_ccch(ms); + + /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */ + f_sleep(X2002); + f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data, 0); + + /* ACK the DL block */ + f_acknackdesc_ack_block(ms.dl_tbf.acknack_desc, dl_block, '1'B); + f_ms_tx_ul_block(ms, ts_RLCMAC_DL_ACK_NACK(ms.dl_tbf.tfi, ms.dl_tbf.acknack_desc), + f_dl_block_ack_fn(dl_block, dl_fn)); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Verify scheduling of multiple Downlink data blocks during one RRBP. */ +testcase TC_dl_flow_more_blocks() runs on RAW_PCU_Test_CT { + var AckNackDescription ack_nack_desc := valueof(t_AckNackDescription_init); + var octetstring data := f_rnd_octstring(16); + var PacketDlAssign dl_tbf_ass; + var RlcmacDlBlock dl_block; + var uint32_t ack_fn; + var uint32_t fn; + var GprsMS ms; + timer T := 5.0; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + + f_statsd_reset(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* SGSN sends some DL data, PCU will page on CCCH (PCH) */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data, imsi := ts_BSSGP_IMSI(ms.imsi))); + f_ms_exp_dl_tbf_ass_ccch(ms); + + /* Wait timer X2002 and DL block is available after CCCH IMM ASS */ + f_sleep(X2002); + /* Skip potential dummy blocks before X2002 triggers at PCU after us: */ + fn := f_rx_rlcmac_dl_block_skip_dummy(dl_block, max_dummy := 10); + /* Expect the first (GPRS DL) block with bsn=0 and rrbp_valid=1 */ + f_rlcmac_dl_block_exp_data(dl_block, data, 0); + f_acknackdesc_ack_block(ms.dl_tbf.acknack_desc, dl_block); -function f_ul_tbf(inout UlTbfState us) runs on dummy_CT { - var RLCMAC_ph_data_ind dl; + /* TDMA frame number on which we are supposed to send the ACK */ + ack_fn := f_dl_block_ack_fn(dl_block, fn); - /* Establish an UL-TBF */ - f_establish_ul_tbf(); + /* SGSN sends more blocks during the indicated RRBP */ + for (var integer bsn := 1; bsn < 63; bsn := bsn + 1) { + data := f_rnd_octstring(16); /* Random LLC data */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data)); + f_rx_rlcmac_dl_block_exp_data(dl_block, fn, data, bsn); + + /* Make sure this block has the same TFI as was assigned + * FIXME: this is only valid for GPRS, not EGPRS. */ + if (dl_block.data.mac_hdr.hdr_ext.tfi != ms.dl_tbf.tfi) { + setverdict(fail, "Rx DL data block with unexpected TFI: ", + dl_block.data.mac_hdr.hdr_ext.tfi); + f_shutdown(__BFILE__, __LINE__); + } + + /* Keep Ack/Nack description updated */ + f_acknackdesc_ack_block(ms.dl_tbf.acknack_desc, dl_block); + + /* Break if this is the end of RRBP */ + if (fn == ack_fn) { + ms.dl_tbf.acknack_desc.final_ack := '1'B; + break; + } + } + + /* This is the end of RRBP, send Packet Downlink Ack/Nack */ + f_ms_tx_ul_block(ms, ts_RLCMAC_DL_ACK_NACK(ms.dl_tbf.tfi, ms.dl_tbf.acknack_desc), fn := fn); + + /* Make sure that the next block (after the Ack) is dummy */ + f_rx_rlcmac_dl_block_exp_dummy(dl_block); + + var StatsDExpects expect := { + { name := "TTCN3.bts.0.rach.requests", mtype := "c", min := 0, max := 0}, + { name := "TTCN3.bts.0.immediate.assignment_DL", mtype := "c", min := 1, max := 1}, + { name := "TTCN3.bts.0.immediate.assignment_UL", mtype := "c", min := 0, max := 0}, + { name := "TTCN3.bts.0.tbf.dl.alloc", mtype := "c", min := 1, max := 1}, + { name := "TTCN3.bts.0.tbf.ul.alloc", mtype := "c", min := 0, max := 0}, + { name := "TTCN3.bts.0.rlc.dl_payload_bytes", mtype := "c", min := 64, max := 64}, + { name := "TTCN3.bts.0.rlc.ul_payload_bytes", mtype := "c", min := 0, max := 0} + }; + f_statsd_expect(expect); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Verify Decoding and segmentation of UL LLC PDUs into RLC data blocks, OS#4559. + * Check "GPRS from A-Z" slide "Example of LI-Field and E-Bit" page 186. + * Check "3GPP TS 44.060" Annex B. */ +testcase TC_ul_flow_multiple_llc_blocks() runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var octetstring dataA := f_rnd_octstring(20); + var octetstring dataB := f_rnd_octstring(13); + var octetstring dataC := f_rnd_octstring(3); + var octetstring dataD := f_rnd_octstring(12); + var uint32_t sched_fn; + var GprsMS ms; + var template (value) RlcmacUlBlock ul_data; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); + + /* Wait until PCU starts requesting for UL block on this TBF: */ + f_ms_wait_usf(ms); + + /* Summary of what's transmitted: + * 1- UL RlcDataBlock(dataA) [BSN=0, CV=3] + * 2- UL RlcDataBlock(dataA finished, dataB starts) [BSN=1, CV=2] + * 3- UL RlcDataBlock(dataB finished, dataC starts and finishes, dataD starts) [BSN=2, CV=1] + * 4- UL RlcDataBlock(dataD finishes) [BSN=3, CV=0] + * And on SGSN we receive 4 packets, one for each LlcBlock dataA..D. + * We'll also receive some UL ACK/NACK we need to reply with CTRL ACK. + */ + + /* UL RlcDataBlock(dataA) [BSN=0, CV=3] */ + ul_data := t_RLCMAC_UL_DATA_TLLI(cs := CS_1, + tfi := ms.ul_tbf.tfi, + cv := 3, + bsn := ms.ul_tbf.bsn, + blocks := { t_RLCMAC_LLCBLOCK(substr(dataA, 0, 16)) }, + tlli := ms.tlli); + /* Indicate no llc header, meaning first LLC block doesn't finish in current + * RLCMAC block being sent. */ + ul_data.data.mac_hdr.e := true; + f_ultbf_inc_bsn(ms.ul_tbf); + f_ms_tx_ul_block(ms, ul_data, ms.ul_tbf.start_time_fn); + + /* UL RlcDataBlock(dataA finished, dataB starts) [BSN=1, CV=2] */ + ul_data := t_RLCMAC_UL_DATA_TLLI(cs := CS_1, + tfi := ms.ul_tbf.tfi, + cv := 2, + bsn := ms.ul_tbf.bsn, + blocks := { t_RLCMAC_LLCBLOCK(substr(dataA, 16, 4), + t_RLCMAC_LLCBLOCK_HDR(length_ind := 4, more := true, e := true)), + t_RLCMAC_LLCBLOCK(substr(dataB, 0, 11)) + }, + tlli := ms.tlli); + f_ultbf_inc_bsn(ms.ul_tbf); + f_ms_tx_ul_block(ms, ul_data); + + /* UL block dataA should be received in SGSN */ + BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id, dataA)); + + /* UL RlcDataBlock(dataB finished, dataC starts and finishes, dataD starts) [BSN=2, CV=1] */ + ul_data := t_RLCMAC_UL_DATA_TLLI(cs := CS_1, + tfi := ms.ul_tbf.tfi, + cv := 1, + bsn := ms.ul_tbf.bsn, + blocks := { t_RLCMAC_LLCBLOCK(substr(dataB, 11, 2), + t_RLCMAC_LLCBLOCK_HDR(length_ind := 2, more := true, e := false)), + t_RLCMAC_LLCBLOCK(substr(dataC, 0, 3), + t_RLCMAC_LLCBLOCK_HDR(length_ind := 3, more := true, e := true)), + t_RLCMAC_LLCBLOCK(substr(dataD, 0, 9)) + }, + tlli := ms.tlli); + f_ultbf_inc_bsn(ms.ul_tbf); + f_ms_tx_ul_block(ms, ul_data); + + /* UL block dataB and dataC should be received in SGSN */ + BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id, dataB)); + BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id, dataC)); + + /* UL RlcDataBlock(dataD finishes) [BSN=3, CV=0] */ + ul_data := t_RLCMAC_UL_DATA_TLLI( + cs := CS_1, + tfi := ms.ul_tbf.tfi, + cv := 0, + bsn := ms.ul_tbf.bsn, + blocks := { t_RLCMAC_LLCBLOCK(substr(dataD, 9, 3), + t_RLCMAC_LLCBLOCK_HDR(length_ind := 3, more := false, e := true)) + }, + tlli := ms.tlli); + f_ultbf_inc_bsn(ms.ul_tbf); + f_ms_tx_ul_block(ms, ul_data); + + /* UL block dataB and dataD should be received in SGSN */ + BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id, dataD)); + + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); + /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Validate an Imm Assignment is retransmitted if first RRBP requesting DL + * ACK/NACK is not answered */ +testcase TC_dl_no_ack_retrans_imm_ass() runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var octetstring data1 := f_rnd_octstring(200); + var octetstring data2 := f_rnd_octstring(10); + var uint32_t dl_fn; + var GprsMS ms; + var template (value) TsTrxBtsNum nr; + var BTS_PDTCH_Block data_msg; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()) + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* SGSN sends some DL data, PCU will page on CCCH (PCH) */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data1, imsi := ts_BSSGP_IMSI(ms.imsi))); + f_ms_exp_dl_tbf_ass_ccch(ms); + + /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */ + f_sleep(X2002); + + /* Recv DL data until receiving RRBP to DL ACK (because it's last queued DL data) */ while (true) { - var RlcmacUlBlock blk; - if (f_ul_tbf_get_next_block(blk, us, g_mmctx, true) == false) { + f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, ?, ?); + + /* Keep Ack/Nack description updated (except for last BSN) */ + f_acknackdesc_ack_block(ms.dl_tbf.acknack_desc, dl_block); + + if (f_dl_block_rrbp_valid(dl_block)) { + /* Don't transmit DL ACK here on purpose ignore it */ break; } + } + + /* PCU starts whole process again */ + f_ms_exp_dl_tbf_ass_ccch(ms); + + /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */ + f_sleep(X2002); - /* Send the block to L1 for transmission */ - log("L1=", blk); - L1.send(RLCMAC_ph_data_req:{dyn:={tbf_id := 0, cs := us.tbf.initial_cs, block := blk}}); + /* Recv DL data until receiving RRBP to DL ACK (because it's last queued + /* DL data), after that we receive only DUMMY blocks so we are done */ + var boolean data_received := false; + nr := ts_TsTrxBtsNum; + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + alt { + [data_received] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + tr_RLCMAC_DL_DUMMY_CTRL)) { /* done */ } + [] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + tr_RLCMAC_DATA)) -> value data_msg { + data_received := true; + f_acknackdesc_ack_block(ms.dl_tbf.acknack_desc, data_msg.dl_block); + if (data_msg.dl_block.data.mac_hdr.hdr_ext.fbi) { + log("Received FINAL_ACK"); + ms.dl_tbf.acknack_desc.final_ack := '1'B; + } + if (f_dl_block_rrbp_valid(data_msg.dl_block)) { + f_ms_tx_ul_block(ms, ts_RLCMAC_DL_ACK_NACK(ms.dl_tbf.tfi, ms.dl_tbf.acknack_desc), + f_dl_block_ack_fn(dl_block, data_msg.raw.fn)); + } + nr := ts_TsTrxBtsNum; + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + repeat; + } + [] BTS.receive { + setverdict(fail, "Unexpected BTS message"); + f_shutdown(__BFILE__, __LINE__); } + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* OS#5508: Verify scheduling of LLC frames with SAPI=1 (GMM) takes precedence + * over SAPI2/7/8 which in turn take prececende over others */ +testcase TC_dl_llc_sapi_priority() runs on RAW_PCU_Test_CT { + var octetstring data_sapi1 := f_pad_oct('01'O, 19, 'ff'O); + var octetstring data_sapi2 := f_pad_oct('02'O, 19, 'ff'O); + var octetstring data_sapi7 := f_pad_oct('07'O, 19, 'ff'O); + var octetstring data_sapi8 := f_pad_oct('08'O, 19, 'ff'O); + var octetstring data_sapi_other := f_pad_oct('03'O, 19, 'ff'O); + var RlcmacDlBlock dl_block; + var uint32_t dl_fn; + var GprsMS ms; + var integer state := 1; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + + /* Lock to CS1 to keep same DL RLCMAC data block size: */ + g_cs_initial_dl := 1; + g_mcs_max_dl := 1; + f_pcuvty_set_allowed_cs_mcs(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* SGSN sends some low prio DL data, PCU will page on CCCH (PCH) */ + for (var integer i := 0; i < 10; i := i + 1) { + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data_sapi_other, imsi := ts_BSSGP_IMSI(ms.imsi))); + } + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data_sapi2, imsi := ts_BSSGP_IMSI(ms.imsi))); + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data_sapi7, imsi := ts_BSSGP_IMSI(ms.imsi))); + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data_sapi8, imsi := ts_BSSGP_IMSI(ms.imsi))); + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data_sapi1, imsi := ts_BSSGP_IMSI(ms.imsi))); + f_ms_exp_dl_tbf_ass_ccch(ms); + + /* Wait timer X2002 and DL block is available after CCCH IMM ASS */ + f_sleep(X2002); + + while (state != 0) { + var OCT1 rx_sapi; + f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, ?, ?); + rx_sapi := dl_block.data.blocks[0].payload[0]; + + select (state) { + case(1) { /* We expect the first GMM LLC frame here (SAPI=1, highest prio) */ + if (rx_sapi != '01'O) { + setverdict(fail, "Wrong prio: Expected LLC SAPI 1 (GMM) but got ", rx_sapi); + f_shutdown(__BFILE__, __LINE__); + } + state := 2; + } + case(2) { /* We expect the second LLC frame here (SAPI=2, middle prio) */ + if (rx_sapi != '02'O) { + setverdict(fail, "Wrong prio: Expected LLC SAPI 2 but got ", rx_sapi); + f_shutdown(__BFILE__, __LINE__); + } + state := 7; + } + case(7) { /* We expect the third LLC frame here (SAPI=7, middle prio) */ + if (rx_sapi != '07'O) { + setverdict(fail, "Wrong prio: Expected LLC SAPI 7 but got ", rx_sapi); + f_shutdown(__BFILE__, __LINE__); + } + state := 8; + } + case(8) { /* We expect the fourth LLC frame here (SAPI=8, middle prio) */ + if (rx_sapi != '08'O) { + setverdict(fail, "Wrong prio: Expected LLC SAPI 8 but got ", rx_sapi); + f_shutdown(__BFILE__, __LINE__); + } + state := 3; + } + case(3) { /* We expect the other LLC frame here (SAPI=3, lower prio) */ + if (rx_sapi != '03'O) { + setverdict(fail, "Wrong prio: Expected LLC SAPI 3 but got ", rx_sapi); + f_shutdown(__BFILE__, __LINE__); + } + state := 0; /* Done, break */ + } + } + /* Keep Ack/Nack description updated (except for last BSN) */ + f_acknackdesc_ack_block(ms.dl_tbf.acknack_desc, dl_block); + + if (f_dl_block_rrbp_valid(dl_block)) { + f_ms_tx_ul_block(ms, ts_RLCMAC_DL_ACK_NACK(ms.dl_tbf.tfi, ms.dl_tbf.acknack_desc), + f_dl_block_ack_fn(dl_block, dl_fn)); + } + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Verify allocation and use of multislot tbf, triggered by MS class provided in SGSN. SYS#5131 */ +testcase TC_dl_multislot_tbf_ms_class_from_sgsn() runs on RAW_PCU_Test_CT { + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + var octetstring data := f_rnd_octstring(10); + var PacketDlAssign dl_tbf_ass; + var RlcmacDlBlock dl_block; + var uint32_t poll_fn; + var uint32_t dl_fn; + var uint32_t sched_fn; + var GprsMS ms; + timer T := 5.0; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Only 1 TRX with 8 PDCH */ + f_PCUIF_PDCHMask_set(info_ind, '11111111'B, 0); + f_PCUIF_PDCHMask_set(info_ind, '00000000'B, (1 .. 7)); + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Establish an Uplink TBF, this way the PCU can send DL Assignment + through PDCH (no multiblock assignment possible through PCH) */ + f_ms_establish_ul_tbf(ms); + + /* Wait until PCU starts requesting for UL block on this TBF: */ + dl_fn := f_ms_wait_usf(ms, nr := f_ms_tx_TsTrxBtsNum(ms)); + sched_fn := f_next_pdch_block(dl_fn); + + /* Send one UL block (with TLLI since we are in One-Phase Access + contention resolution) and make sure it is ACKED fine */ + f_ms_tx_ul_data_block(ms, data, with_tlli := true, fn := sched_fn, + nr := f_ms_tx_TsTrxBtsNum(ms)); + /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, poll_fn, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* SGSN sends some DL data, PCU will assign DL TBF through PACCH */ + var MultislotCap_GPRS_BSSGP mscap_gprs := { + gprsmultislotclass := '10010'B, /* MS class 18, supports 8 DL and 8 UL */ + gprsextendeddynalloccap := '0'B + }; + var MSRadioAccessCapabilityV_BSSGP ms_racap := { valueof(ts_RaCapRec_BSSGP('0001'B /* E-GSM */, mscap_gprs, omit)) }; + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data, ms_racap)); + dl_block := f_ms_rx_pkt_ass_pacch(ms, sched_fn, tr_RLCMAC_DL_PACKET_ASS, nr := f_ms_tx_TsTrxBtsNum(ms)); + if (f_dltbf_num_slots(ms.dl_tbf) != 8) { + setverdict(fail, "Expected 8 PDCH slots allocated but got ", f_dltbf_num_slots(ms.dl_tbf)); + f_shutdown(__BFILE__, __LINE__); + } + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn, nr := f_ms_tx_TsTrxBtsNum(ms)); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Test DL TBF assignment over PACCH if Multislot class is unknown both at PCU + * and SGSN (eg. because MS started 1-phase access and SGSN answered back). + * Since the msclass is unknown, it shouldn't assign multiple timeslots since + * the MS may not support it. Related OS#6118. */ +testcase TC_dl_multislot_tbf_ms_class_unknown() runs on RAW_PCU_Test_CT +{ + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + var RlcmacDlBlock dl_block; + var octetstring payload; + var template (value) LlcBlockHdr blk_hdr; + var template (value) LlcBlocks blocks; + var uint32_t sched_fn; + var uint32_t dl_fn; + var template RlcmacDlBlock acknack_tmpl; + var GprsMS ms; + var octetstring data := f_rnd_octstring(10); + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + + /* Only 1 TRX with 8 PDCH */ + f_PCUIF_PDCHMask_set(info_ind, '11111111'B, 0); + f_PCUIF_PDCHMask_set(info_ind, '00000000'B, (1 .. 7)); + + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Establish an Uplink TBF. 1 TS is assigned over AGCH. */ + f_ms_establish_ul_tbf(ms); + + /* Wait until PCU starts requesting for UL block on this TBF: */ + dl_fn := f_ms_wait_usf(ms, nr := f_ms_tx_TsTrxBtsNum(ms)); + sched_fn := f_next_pdch_block(dl_fn); + + /* Send one UL block (with TLLI since we are in One-Phase Access + * contention resolution) and make sure it is ACKED fine. */ + payload := f_rnd_octstring(16); /* 16 bytes fills the llc block (because TLLI takes 4 bytes) */ + blk_hdr := t_RLCMAC_LLCBLOCK_HDR(length_ind := lengthof(payload), + more := false, e := true); + blocks := { t_RLCMAC_LLCBLOCK(payload, blk_hdr) }; + /* Set CV = 15 to signal there's still more than BS_CV_MAX blocks to be sent */ + f_ms_tx_ul_data_blocks_gprs(ms, blocks, cv := 15, with_tlli := true, fn := sched_fn, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* UL block should be received in SGSN */ + BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id)); + + acknack_tmpl := tr_RLCMAC_UL_ACK_NACK_GPRS(ms.ul_tbf.tfi, + tr_UlAckNackGprs(ms.tlli, + tr_AckNackDescription(final_ack := '0'B))) + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn, acknack_tmpl, nr := f_ms_tx_TsTrxBtsNum(ms)); + + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data, racap := omit)); + dl_block := f_ms_rx_pkt_ass_pacch(ms, sched_fn, tr_RLCMAC_DL_PACKET_ASS, nr := f_ms_tx_TsTrxBtsNum(ms)); + if (f_dltbf_num_slots(ms.dl_tbf) != 1) { + setverdict(fail, "Expected 1 PDCH slots allocated but got ", f_dltbf_num_slots(ms.dl_tbf)); + f_shutdown(__BFILE__, __LINE__); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +testcase TC_dl_multislot_tbf_ms_class_from_2phase() runs on RAW_PCU_Test_CT { + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + var RlcmacDlBlock dl_block; + var octetstring data := f_rnd_octstring(10); + var PollFnCtx pollctx; + var uint32_t sched_fn; + var GprsMS ms; + + var MultislotCap_GPRS mscap_gprs := { + gprsmultislotclass := '10010'B, /* MS class 18, supports 8 DL and 8 UL */ + gprsextendeddynalloccap := '0'B + }; + var MSRadioAccessCapabilityV ms_racap := { valueof(ts_RaCapRec('0001'B /* E-GSM */, mscap_gprs, omit)) }; + + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Only 1 TRX with 8 PDCH */ + f_PCUIF_PDCHMask_set(info_ind, '11111111'B, 0); + f_PCUIF_PDCHMask_set(info_ind, '00000000'B, (1 .. 7)); + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Send PACKET RESOURCE REQUEST to notify the MultiSlot Class */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap)); + + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), pollctx.fn, nr := pollctx.tstrxbts); + + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data)); + dl_block := f_ms_rx_pkt_ass_pacch(ms, sched_fn, tr_RLCMAC_DL_PACKET_ASS, nr := f_ms_tx_TsTrxBtsNum(ms)); + if (f_dltbf_num_slots(ms.dl_tbf) != 8) { + setverdict(fail, "Expected 8 PDCH slot allocated but got ", f_dltbf_num_slots(ms.dl_tbf)); + f_shutdown(__BFILE__, __LINE__); + } + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn, nr := f_ms_tx_TsTrxBtsNum(ms)); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +testcase TC_ul_multislot_tbf_ms_class_from_2phase() runs on RAW_PCU_Test_CT { + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default); + var RlcmacDlBlock dl_block; + var octetstring data := f_rnd_octstring(10); + var PollFnCtx pollctx; + var uint32_t sched_fn; + var GprsMS ms; + + var MultislotCap_GPRS mscap_gprs := { + gprsmultislotclass := '10010'B, /* MS class 18, supports 8 DL and 8 UL */ + gprsextendeddynalloccap := '0'B + }; + var MSRadioAccessCapabilityV ms_racap := { valueof(ts_RaCapRec('0001'B /* E-GSM */, mscap_gprs, omit)) }; + + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Only 1 TRX with 8 PDCH */ + f_PCUIF_PDCHMask_set(info_ind, '11111111'B, 0); + f_PCUIF_PDCHMask_set(info_ind, '00000000'B, (1 .. 7)); + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Send PACKET RESOURCE REQUEST to notify the MultiSlot Class */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap)); + + if (f_ultbf_num_slots(ms.ul_tbf) != 8) { + setverdict(fail, "Expected 8 PDCH slot allocated but got ", f_ultbf_num_slots(ms.ul_tbf)); + f_shutdown(__BFILE__, __LINE__); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Test scenario where MS wants to request a new TBF once the current one is + * ending, by means of sending a Packet Resource Request on ul slot provided by + * last Pkt Ul ACK's RRBP. + * See 3GPP TS 44.060 sec 9.3.2.4.2 "Non-extended uplink TBF mode" */ +testcase TC_ul_tbf_reestablish_with_pkt_resource_req() runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var octetstring data := f_rnd_octstring(10); + var uint32_t sched_fn; + var uint32_t dl_fn; + var template RlcmacDlBlock acknack_tmpl; + var GprsMS ms; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); + f_statsd_reset(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); + + /* Wait until PCU starts requesting for UL block on this TBF: */ + f_ms_wait_usf(ms); + + /* Send one UL block (with TLLI since we are in One-Phase Access + contention resolution) and make sure it is ACKED fine */ + f_ms_tx_ul_data_block_multi(ms, 1, with_tlli := true, fn := ms.ul_tbf.start_time_fn); + + /* UL block should be received in SGSN */ + BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id)); + + acknack_tmpl := tr_RLCMAC_UL_ACK_NACK_GPRS(ms.ul_tbf.tfi, + tr_UlAckNackGprs(ms.tlli, + tr_AckNackDescription(final_ack := '1'B), + tr_UlAckNackGprsAdditionsRel99(tbf_est := true))) + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn, acknack_tmpl); + + /* TODO: verify TBF_EST and FinalACK are both '1' above */ + + /* Send PACKET RESOURCE REQUEST to request a new UL TBF */ + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, omit)), sched_fn); + f_ms_rx_pkt_ass_pacch(ms, sched_fn, tr_RLCMAC_UL_PACKET_ASS); + /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + + /* Send one UL block (without TLLI since we are in Second-Phase Access) + and make sure it is ACKED fine */ + f_ms_tx_ul_data_block_multi(ms, 1, with_tlli := false); /* TODO: send using cs_mcs */ + + /* UL block should be received in SGSN */ + BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id)); + + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn, acknack_tmpl); + /* ACK the ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + + var StatsDExpects expect := { + { name := "TTCN3.bts.0.rach.requests", mtype := "c", min := 1, max := 1 }, + { name := "TTCN3.bts.0.rach.requests.11bit", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.rach.requests.one_phase", mtype := "c", min := 1, max := 1 }, + { name := "TTCN3.bts.0.rach.requests.two_phase", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.immediate.assignment_UL", mtype := "c", min := 1, max := 1 }, + { name := "TTCN3.bts.0.immediate.assignment_ul.one_phase", mtype := "c", min := 1, max := 1 }, + { name := "TTCN3.bts.0.immediate.assignment_ul.two_phase", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.immediate.assignment_ul.contention_resolution_success", mtype := "c", min := 1, max := 1 }, + { name := "TTCN3.bts.0.immediate.assignment_DL", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.pkt.ul_assignment", mtype := "c", min := 1, max := 1 } + }; + f_statsd_expect(expect); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Test scenario where MS wants to request a new TBF once the current one is + * ending, by means of sending a Packet Resource Request on ul slot provided by + * last Pkt Ul ACK's RRBP. new Pkt Ul Ass is never confirmed by the MS in this test. + * See 3GPP TS 44.060 sec 9.3.2.4.2 "Non-extended uplink TBF mode" */ +testcase TC_ul_tbf_reestablish_with_pkt_resource_req_t3168() runs on RAW_PCU_Test_CT { + var PCUIF_info_ind info_ind; + var RlcmacDlBlock dl_block; + var octetstring data := f_rnd_octstring(10); + var uint32_t sched_fn; + var uint32_t dl_fn; + var template (value) TsTrxBtsNum nr; + var BTS_PDTCH_Block data_msg; + var template RlcmacDlBlock acknack_tmpl; + var GprsMS ms; + var integer cnt_rrbp := 0; + var integer cnt_dummy_after_timeout := 0; + /* Maximum T3168 value = 8 * 500 ms = 4s => * 4 retrans = 16s */ + timer T_3168 := 16.0 + 0.5; /* 0.5: extra offset since we cannot match exactly */ + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + info_ind := valueof(ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + /* TODO: Speedup test by sending a PCU_IF_SAPI_BCCH SI13 with T3168=0 (500ms) */ + f_init_raw(testcasename(), info_ind); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); + + /* Wait until PCU starts requesting for UL block on this TBF: */ + f_ms_wait_usf(ms); + + /* Send one UL block (with TLLI since we are in One-Phase Access + contention resolution) and make sure it is ACKED fine */ + f_ms_tx_ul_data_block_multi(ms, 1, with_tlli := true, fn := ms.ul_tbf.start_time_fn); + + /* UL block should be received in SGSN */ + BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id)); + + acknack_tmpl := tr_RLCMAC_UL_ACK_NACK_GPRS(ms.ul_tbf.tfi, + tr_UlAckNackGprs(ms.tlli, + tr_AckNackDescription(final_ack := '1'B), + tr_UlAckNackGprsAdditionsRel99(tbf_est := true))) + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn, acknack_tmpl); + + /* TODO: verify TBF_EST and FinalACK are both '1' above */ + + /* Send PACKET RESOURCE REQUEST to request a new UL TBF */ + T_3168.start; + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, omit)), sched_fn); + + /* Now Keep ignoring the Pkt Ul Ass on PACCH: */ + /* Now we go on receiving DL data and not answering RRBP: */ + nr := ts_TsTrxBtsNum; + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); alt { - [] L1.receive(RLCMAC_ph_data_ind:{cs:=?, ts_nr:=?, fn:=?, block:=tr_RLCMAC_ACK_NACK(0, g_mmctx.tlli)}) -> value dl { - log("found matching ACK/NACK"); - /* send CTRL ACK in uplink */ - var GsmFrameNumber ul_fn := f_rrbp_fn(dl.fn, dl.block.ctrl.mac_hdr.rrbp); - var RlcmacUlCtrlMsg ctrl_ack := valueof(ts_RlcMacUlCtrl_PKT_CTRL_ACK(g_mmctx.tlli)); - var RlcmacUlBlock ul_block := valueof(ts_RLC_UL_CTRL_ACK(ctrl_ack)); - L1.send(ts_PH_DATA_ABS(0, CS1, dl.ts_nr, ul_fn, {false, 871}, ul_block)); - /* wait for the final ACK */ - if (dl.block.ctrl.payload.u.ul_ack_nack.gprs.ack_nack_desc.final_ack == '0'B) { - repeat; + [] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + tr_RLCMAC_UL_PACKET_ASS)) -> value data_msg { + /* We should not be receiving PKT UL ASS anymore after T3168 timeout */ + if (not T_3168.running) { + setverdict(fail, log2str("Unexpected PKT UL ASS after T3168 timeout: ", data_msg)); + f_shutdown(__BFILE__, __LINE__); + } + + if (f_dl_block_rrbp_valid(data_msg.dl_block)) { + log("Ignoring RRBP ", cnt_rrbp); + cnt_rrbp := cnt_rrbp + 1; } + nr := ts_TsTrxBtsNum; + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + repeat; + } + [] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + tr_RLCMAC_DL_DUMMY_CTRL)) -> value data_msg { + nr := ts_TsTrxBtsNum; + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + repeat; + } + [] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + omit)) -> value data_msg { + + /* T3168 expired and we are not receiving blocks anymore, meaning PCU released the TBF. */ + break; + } + [] BTS.receive { + setverdict(fail, "Unexpected BTS message"); + f_shutdown(__BFILE__, __LINE__); + } + } + + /* Check that we received at least a few PKT UL ASS before T3168 expiration */ + if (cnt_rrbp <= 3) { + setverdict(fail, log2str("Received only ", cnt_rrbp, " before T3168 timeout!")); + f_shutdown(__BFILE__, __LINE__); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Test scenario where MS wants to request a new UL TBF using a DL (EGPRS) ACK/NACK + * transmitted on ul slot provided by its DL TBF. + * See 3GPP TS 44.060 sec 9.3.2.4.2 "Non-extended uplink TBF mode" */ +function f_TC_ul_tbf_reestablish_with_pkt_dl_ack_nack(boolean use_egprs) runs on RAW_PCU_Test_CT { + var GprsMS ms; + var octetstring data := f_rnd_octstring(10); + var RlcmacDlBlock dl_block; + var template RlcmacDlBlock rej_tmpl; + var uint32_t dl_fn; + var uint32_t sched_fn; + var template (value) MSRadioAccessCapabilityV_BSSGP racap_tmpl; + + if (use_egprs == true) { + racap_tmpl := bssgp_ms_racap_egprs_def; + } else { + racap_tmpl := bssgp_ms_racap_gprs_def; + } + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* SGSN sends some DL data, PCU will page on CCCH (PCH) */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data, racap_tmpl, imsi := ts_BSSGP_IMSI(ms.imsi))); + f_ms_exp_dl_tbf_ass_ccch(ms); + + /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */ + f_sleep(X2002); + f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data, 0); + + /* ACK the DL block, asking for new UL TBF by including ChanReqDesc */ + f_dltbf_ack_block(ms.dl_tbf, dl_block, '1'B); + f_ms_tx_ul_block(ms, f_dltbf_ts_RLCMAC_DL_ACK_NACK(ms.dl_tbf, use_egprs, ts_ChannelReqDescription()), + f_dl_block_ack_fn(dl_block, dl_fn)); + + /* We should receive a Pkt Ul ASS */ + f_ms_rx_pkt_ass_pacch(ms, sched_fn, tr_RLCMAC_UL_PACKET_ASS); + f_shutdown(__BFILE__, __LINE__, final := true); +} +testcase TC_ul_tbf_reestablish_with_pkt_dl_ack_nack() runs on RAW_PCU_Test_CT { + f_TC_ul_tbf_reestablish_with_pkt_dl_ack_nack(false); +} +testcase TC_ul_tbf_reestablish_with_pkt_dl_ack_nack_egprs() runs on RAW_PCU_Test_CT { + f_TC_ul_tbf_reestablish_with_pkt_dl_ack_nack(true); +} + +/* Test UL data blocks BSN 0..127 and then continue again at BSN 0... up to 300 + * BSNs in total to test several wrap arounds. */ +testcase TC_ul_tbf_bsn_wraparound_gprs() runs on RAW_PCU_Test_CT +{ + var PCUIF_info_ind info_ind; + var RlcmacDlBlock dl_block; + var octetstring payload; + var template (value) LlcBlockHdr blk_hdr; + var template (value) LlcBlocks blocks; + var uint32_t sched_fn; + var uint32_t dl_fn; + var template (value) TsTrxBtsNum nr; + var BTS_PDTCH_Block data_msg; + var template RlcmacDlBlock acknack_tmpl; + var GprsMS ms; + var integer blocks_sent := 0; + var integer blocks_received := 0; + const integer target_bsn_set := 300; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + info_ind := valueof(ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + f_init_raw(testcasename(), info_ind); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); + + /* Wait until PCU starts requesting for UL block on this TBF: */ + dl_fn := f_ms_wait_usf(ms); + sched_fn := f_next_pdch_block(dl_fn); + + /* Send one UL block (with TLLI since we are in One-Phase Access + contention resolution) and make sure it is ACKED fine. */ + payload := f_rnd_octstring(16); /* 16 bytes fills the llc block (because TLLI takes 4 bytes) */ + blk_hdr := t_RLCMAC_LLCBLOCK_HDR(length_ind := lengthof(payload), + more := false, e := true); + blocks := { t_RLCMAC_LLCBLOCK(payload, blk_hdr) }; + /* Set CV = 15 to signal there's still more than BS_CV_MAX blocks to be sent */ + f_ms_tx_ul_data_blocks_gprs(ms, blocks, cv := 15, with_tlli := true, fn := sched_fn); + blocks_sent := blocks_sent + 1; + + /* UL block should be received in SGSN */ + BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id)); + + acknack_tmpl := tr_RLCMAC_UL_ACK_NACK_GPRS(ms.ul_tbf.tfi, + tr_UlAckNackGprs(ms.tlli, + tr_AckNackDescription(final_ack := '0'B))) + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn, acknack_tmpl); + + nr := f_ms_tx_TsTrxBtsNum(ms); + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + alt { + [] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + tr_RLCMAC_UL_ACK_NACK_GPRS)) -> value data_msg { + + if (f_dl_block_rrbp_valid(data_msg.dl_block)) { + var uint32_t ack_fn := f_dl_block_ack_fn(data_msg.dl_block, data_msg.raw.fn) + log("ACKING FN ", data_msg.raw.fn, " on FN ", ack_fn); + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), ack_fn); + } + f_ms_tx_ul_data_blocks_gprs(ms, blocks); + blocks_sent := blocks_sent + 1; + + if (blocks_sent == target_bsn_set) { + break; + } + + nr := f_ms_tx_TsTrxBtsNum(ms); + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + repeat; + } + [] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + tr_RLCMAC_DL_DUMMY_CTRL)) -> value data_msg { + + f_ms_tx_ul_data_blocks_gprs(ms, blocks); + blocks_sent := blocks_sent + 1; + + if (blocks_sent == target_bsn_set) { + break; } - [] L1.receive { repeat; } + + nr := f_ms_tx_TsTrxBtsNum(ms); + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + repeat; + } + [] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + omit)) -> value data_msg { + nr := f_ms_tx_TsTrxBtsNum(ms); + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), + block_nr := nr.blk_nr)); + repeat; + } + [] BTS.receive { + setverdict(fail, "Unexpected BTS message"); + f_shutdown(__BFILE__, __LINE__); + } + [] BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id)) { + blocks_received := blocks_received + 1; + repeat; + } } - for (var integer i := 0; i < sizeof(us.tbf.llc_pdus_enc); i := i+1) { - f_bssgp_wait_ul_ud(tr_BSSGP_UL_UD(g_mmctx.tlli, ?, us.tbf.llc_pdus_enc[i])); + /* Validate most part of them were accepted and forwarded: */ + if (blocks_received < target_bsn_set * 95 / 100) { + setverdict(fail, "Forwarded ", blocks_received, " out of ", target_bsn_set, " transmitted"); + f_shutdown(__BFILE__, __LINE__); } - setverdict(pass); + log("Forwarded ", blocks_received, " out of ", target_bsn_set, " transmitted"); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Test CS paging over the BTS<->PCU socket. + * When a (class B or C, not A) MS has an active TBF (or is on the PDCH), the MS can not react on CS paging over CCCH. + * Paging should be send on the PACCH. + * + * 1. Send a Paging Request over PCU socket. + * 2. Send a Ready-To-Send message over PCU socket + * 3. Expect a Paging Frame + */ +testcase TC_paging_cs_from_bts() runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var MobileIdentityLV mi; + var octetstring mi_enc_lv; + var hexstring imsi := f_gen_imsi(42); + var GprsMS ms; - L1.send(DCCH_release_req:{}); + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); + + /* Wait until PCU starts requesting for UL block on this TBF: */ + f_ms_wait_usf(ms); + + /* build mobile Identity */ + mi := valueof(ts_MI_IMSI_LV(imsi)); + mi_enc_lv := enc_MobileIdentityLV(mi); + /* Send paging request */ + BTS.send(ts_PCUIF_PAG_REQ(bts_nr := 0, id_lv := mi_enc_lv, chan_needed := 0, + sapi :=PCU_IF_SAPI_PDTCH)); + + /* Receive it on BTS side towards MS */ + f_rx_rlcmac_dl_block_exp_pkt_pag_req(dl_block); + + /* Make sure that Packet Paging Request contains the same IMSI */ + var PacketPagingReq req := dl_block.ctrl.payload.u.paging; + if (not f_pkt_paging_match_imsi(req, imsi, ps_domain := false)) { + setverdict(fail, "Failed to match IMSI ", imsi, " in ", req); + } + + f_shutdown(__BFILE__, __LINE__, final := true); } -testcase TC_rach() runs on dummy_CT { - var BssgpBvci bvci := 196; - g_mmctx.imsi := '262420123456789'H; - g_mmctx.tlli := f_random_tlli(); +/* Test CS paging over Gb (SGSN->PCU->BTS[PDCH]). + */ +private function f_tc_paging_cs_from_sgsn(Nsvci bvci, boolean use_ptmsi := false) +runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var hexstring imsi := f_gen_imsi(42); + var GsmTmsi tmsi; + var GprsMS ms; - f_init(); + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ - f_bssgp_client_register(g_mmctx.imsi, g_mmctx.tlli, mp_gb_cfg.cell_id); + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + /* Establish BSSGP connection to the PCU */ f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); + + /* Wait until PCU starts requesting for UL block on this TBF: */ + f_ms_wait_usf(ms); + + /* Send paging request with or without TMSI */ + if (use_ptmsi) { + tmsi := oct2int(f_rnd_octstring(4)); /* Random P-TMSI */ + BSSGP[0].send(ts_BSSGP_CS_PAGING_PTMSI(bvci, imsi, tmsi)); + } else { + BSSGP[0].send(ts_BSSGP_CS_PAGING_IMSI(bvci, imsi)); + } + + /* Now receive it on BTS side towards MS. + * Skip any dummy blocks in case the PCUIF req arrives before the BSSP CS_PAGING: + */ + f_rx_rlcmac_dl_block_skip_dummy(dl_block, max_dummy := 10); + + if (not match(dl_block, tr_RLCMAC_PACKET_PAG_REQ())) { + setverdict(fail, "Failed to match Packet Paging Request: ", + dl_block, " vs ", tr_RLCMAC_PACKET_PAG_REQ()); + f_shutdown(__BFILE__, __LINE__); + } + + /* Make sure that Packet Paging Request contains the same P-TMSI/IMSI */ + var PacketPagingReq req := dl_block.ctrl.payload.u.paging; + if (use_ptmsi) { + if (not f_pkt_paging_match_tmsi(req, tmsi, ps_domain := false)) { + setverdict(fail, "Failed to match P-TMSI ", tmsi, " in ", req); + } + } else { + if (not f_pkt_paging_match_imsi(req, imsi, ps_domain := false)) { + setverdict(fail, "Failed to match IMSI ", imsi, " in ", req); + } + } + + f_shutdown(__BFILE__, __LINE__, final := true); } +testcase TC_paging_cs_from_sgsn_sign_ptmsi() runs on RAW_PCU_Test_CT { + f_tc_paging_cs_from_sgsn(0, true); +} +testcase TC_paging_cs_from_sgsn_sign() runs on RAW_PCU_Test_CT { + f_tc_paging_cs_from_sgsn(0); +} -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); +testcase TC_paging_cs_from_sgsn_ptp() runs on RAW_PCU_Test_CT { + f_tc_paging_cs_from_sgsn(mp_gb_cfg.bvc[0].bvci); } -function f_llc_assert(in octetstring a, in octetstring b) { - log("LLC Input: ", a); - log("LLC Expected: ", b); +/* Test PS paging over Gb (SGSN->PCU->BTS[CCCH]). + */ +private function f_tc_paging_ps_from_sgsn(Nsvci bvci, boolean use_ptmsi := false) +runs on RAW_PCU_Test_CT { + var integer imsi_suff_tx := 423; + var hexstring imsi := f_gen_imsi(imsi_suff_tx); + var GprsMS ms; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ - if (a != b) { - setverdict(fail, "LLC input ", b, " != expected ", a); - mtc.stop; + f_statsd_reset(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Send BSSGP PAGING-PS (with or without TMSI), wait for RR Paging Request Type 1. + * Make sure that both paging group (IMSI suffix) and Mobile Identity match. */ + if (use_ptmsi) { + var OCT4 tmsi := f_rnd_octstring(4); /* Random P-TMSI */ + BSSGP[0].send(ts_BSSGP_PS_PAGING_PTMSI(bvci, imsi, oct2int(tmsi))); + f_pcuif_rx_pch_pag_req1(t_MI_TMSI(tmsi), imsi_suff_tx); } else { - setverdict(pass); + BSSGP[0].send(ts_BSSGP_PS_PAGING_IMSI(bvci, imsi)); + f_pcuif_rx_pch_pag_req1(tr_MI_IMSI(imsi), imsi_suff_tx); } + + var StatsDExpects expect := { + { name := "TTCN3.pcu.sgsn.0.rx_paging_ps", mtype := "c", min := 1, max := 1 }, + /* After the PCU receives the paging request from SGSN, + * and it doesn't have any errors, PCU sends it to the + * BTS to do paging over PCH. */ + { name := "TTCN3.bts.0.pch.requests", mtype := "c", min := 1, max := 1 } + }; + f_statsd_expect(expect); +} + +testcase TC_paging_ps_from_sgsn_sign_ptmsi() runs on RAW_PCU_Test_CT { + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); + + f_tc_paging_ps_from_sgsn(0, true); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +testcase TC_paging_ps_from_sgsn_sign() runs on RAW_PCU_Test_CT { + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); + + f_tc_paging_ps_from_sgsn(0); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +testcase TC_paging_ps_from_sgsn_ptp() runs on RAW_PCU_Test_CT { + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); + + f_tc_paging_ps_from_sgsn(mp_gb_cfg.bvc[0].bvci); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +testcase TC_paging_pch_timeout() runs on RAW_PCU_Test_CT { + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); + + /* Set T3113 to 1s to shorten the test duration */ + f_vty_config2(PCUVTY, {"pcu"}, "timer T3113 1"); + + /* Reset stats and send paging PS request */ + f_tc_paging_ps_from_sgsn(mp_gb_cfg.bvc[0].bvci); + + /* Verify that counter increases when T3113 times out (MS did not start + * TBF to respond to paging). */ + f_sleep(1.2); + var StatsDExpects expect := { + { name := "TTCN3.bts.0.pch.requests.timeout", mtype := "c", min := 1, max := 1 } + }; + f_statsd_expect(expect); + + f_vty_config2(PCUVTY, {"pcu"}, "timer T3113 default"); + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Verify osmo-pcu handles DL UNIT_DATA from SGSN with IMSI IE correctly. See OS#4729 */ +testcase TC_bssgp_dl_unitdata_with_valid_imsi() runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var octetstring data := f_rnd_octstring(10); + var uint32_t sched_fn; + var uint32_t dl_fn; + var GprsMS ms; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + + f_statsd_reset(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); + + /* Wait until PCU starts requesting for UL block on this TBF: */ + f_ms_wait_usf(ms); + + /* Fake GMM GPRS Attach or similar, PCU doesn't care about upper layers here */ + f_ms_tx_ul_data_block_multi(ms, 1, with_tlli := true, fn := ms.ul_tbf.start_time_fn); + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); + /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + + /* UL block should be received in SGSN */ + BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id)); + + /* Now SGSN sends some DL data, PCU will page on CCCH (PCH) */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data, imsi := ts_BSSGP_IMSI(ms.imsi))); + f_ms_exp_dl_tbf_ass_ccch(ms); + + /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */ + f_sleep(X2002); + f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data, 0); + + /* ACK the DL block */ + f_acknackdesc_ack_block(ms.dl_tbf.acknack_desc, dl_block, '1'B); + f_ms_tx_ul_block(ms, ts_RLCMAC_DL_ACK_NACK(ms.dl_tbf.tfi, ms.dl_tbf.acknack_desc), + f_dl_block_ack_fn(dl_block, dl_fn)); + + var StatsDExpects expect := { + { name := "TTCN3.bts.0.rach.requests", mtype := "c", min := 1, max := 1}, + { name := "TTCN3.bts.0.immediate.assignment_DL", mtype := "c", min := 1, max := 1}, + { name := "TTCN3.bts.0.tbf.dl.alloc", mtype := "c", min := 1, max := 1}, + { name := "TTCN3.bts.0.tbf.ul.alloc", mtype := "c", min := 1, max := 1}, + { name := "TTCN3.bts.0.rlc.dl_payload_bytes", mtype := "c", min := 10, max := 10}, + { name := "TTCN3.bts.0.rlc.ul_payload_bytes", mtype := "c", min := 26, max := 26} + }; + f_statsd_expect(expect); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Verify osmo-pcu acts on incorrect IMSI IE content in DL UNIT_DATA from SGSN. See OS#4729 */ +testcase TC_bssgp_dl_unitdata_with_invalid_imsi() runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var octetstring data := f_rnd_octstring(10); + var uint32_t sched_fn; + var uint32_t dl_fn; + var GprsMS ms; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); + + /* Wait until PCU starts requesting for UL block on this TBF: */ + f_ms_wait_usf(ms); + + /* Fake GMM GPRS Attach or similar, PCU doesn't care about upper layers here */ + f_ms_tx_ul_data_block_multi(ms, 1, with_tlli := true, fn := ms.ul_tbf.start_time_fn); + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); + /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + + /* UL block should be received in SGSN */ + BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id)); + + /* Now SGSN sends some DL data with an invalid IMSI */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data, imsi := ts_BSSGP_IMSI('1122'H))); + + BSSGP_GLOBAL[0].receive(tr_BSSGP_STATUS(omit, BSSGP_CAUSE_CONDITIONAL_IE_ERROR, ?)); + + /* TODO: make sure no data is sent over PCU -> MS */ + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +private function f_tc_dl_data_no_llc_ui_dummy(template (omit) MSRadioAccessCapabilityV_BSSGP ms_racap := omit) runs on RAW_PCU_Test_CT { + var AckNackDescription ack_nack_desc := valueof(t_AckNackDescription_init); + var octetstring data := f_rnd_octstring(6); + var RlcmacDlBlock dl_block; + var GprsMS ms; + var uint32_t fn; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* SGSN sends some DL data, PCU will page on CCCH (PCH) */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data, ms_racap, imsi := ts_BSSGP_IMSI(ms.imsi))); + f_ms_exp_dl_tbf_ass_ccch(ms); + + /* Wait timer X2002 and DL block is available after CCCH IMM ASS */ + f_sleep(X2002); + + /* Expect the first (GPRS DL) block with bsn=0 and rrbp_valid=1 */ + f_rx_rlcmac_dl_block_exp_data(dl_block, fn, data, 0); + + if (ischosen(dl_block.data_egprs)) { + if (lengthof(dl_block.data_egprs.blocks) != 2) { + setverdict(fail, "DL EGPRS block has unexpected number of LLC frames: ", dl_block.data_egprs); + f_shutdown(__BFILE__, __LINE__); + } + if (dl_block.data_egprs.blocks[1].hdr.length_ind != 127) { + setverdict(fail, "DL EGPRS block 2nd llc frame is not padding!: ", dl_block.data_egprs); + f_shutdown(__BFILE__, __LINE__); + } + if (not match(dl_block.data_egprs.blocks[1].payload, + f_pad_oct(''O, lengthof(dl_block.data_egprs.blocks[1].payload), '2B'O))) { + setverdict(fail, "DL EGPRS block 2nd llc frame is not padding!: ", dl_block.data_egprs); + f_shutdown(__BFILE__, __LINE__); + } + } else if (lengthof(dl_block.data.blocks) > 1) { + setverdict(fail, "DL GPRS block has extra unexpected LLC frames: ", dl_block.data); + f_shutdown(__BFILE__, __LINE__); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Verify osmo-pcu Doesn't append LLC UI dummy frames to rlcmac blocks + * containing llc data. See OS#4849 */ +testcase TC_dl_gprs_data_no_llc_ui_dummy() runs on RAW_PCU_Test_CT { + f_tc_dl_data_no_llc_ui_dummy(omit); +} + +/* Verify osmo-pcu Doesn't append LLC UI dummy frames to rlcmac blocks + * containing llc data. See OS#4849 */ +testcase TC_dl_egprs_data_no_llc_ui_dummy() runs on RAW_PCU_Test_CT { + f_tc_dl_data_no_llc_ui_dummy(bssgp_ms_racap_egprs_def); +} + +/* Scenario: MS creates one phase access, does contention resolution CV>0 and + * finishes sending data (CV=0), which is forwarded to SGSN by PCU. PCU acks with + * FINAL_ACK=1 (hence UL TBF moves to FINISHED state). Then SGSN answers and PCU + * has to assign a DL TBF (through PCH because of FINISHED state, TS 44.060 9.3.3.3.2). + * Make sure the assignment is not done until we receive the PKT CTRL ACK from the MS + * (at that time we know the MS is listening on PCH again). OS#5700. + */ +testcase TC_ul_tbf_finished_pkt_dl_ass_pch() runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var octetstring data := f_rnd_octstring(10); + var uint32_t sched_fn; + var uint32_t dl_fn; + var GprsMS ms; + timer T; + var octetstring payload; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); + + /* Wait until PCU starts requesting for UL block on this TBF: */ + f_ms_wait_usf(ms); + + /* Send one UL block (with TLLI since we are in One-Phase Access + contention resolution) and make sure it is ACKED fine. */ + payload := f_rnd_octstring(f_ultbf_payload_fill_length(ms.ul_tbf, true)); + dl_fn := f_rx_rlcmac_dl_block_exp_dummy(dl_block); + f_ms_tx_ul_data_block(ms, payload, cv := 1, with_tlli := true, fn := f_next_pdch_block(dl_fn)); + + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); + payload := f_rnd_octstring(f_ultbf_payload_fill_length(ms.ul_tbf, false)); + f_ms_tx_ul_data_block(ms, payload, cv := 0); + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); + + /* 1 UL block should be received in SGSN */ + BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id)); + /* Now SGSN sends some DL data, PCU will page on CCCH (PCH) */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data, imsi := ts_BSSGP_IMSI(ms.imsi))); + + /* UL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + f_ms_exp_dl_tbf_ass_ccch(ms); + /* Wait timer X2002 and DL block is available after CCCH IMM ASS: */ + f_sleep(X2002); + f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data, 0); + + f_shutdown(__BFILE__, __LINE__, final := true); } +/* Scenario: MS creates a UL TBF and + * finishes sending data (CV=0), which is forwarded to SGSN by PCU. PCU acks with + * FINAL_ACK=1 (hence UL TBF moves to FINISHED state). Then SGSN answers and PCU + * has to assign a DL TBF on PCH. While the network is waiting for the MS to + * move to PDCH before transmitting DL data (timer X2002), the MS finds out it + * needs to send new UL data and hence sends a RACH request to create a new UL + * TBF. + * Make sure the the MS is assigned a DL TBF through PACCH in that case even if + * no new DL data is received from the SGSN. OS#5700. + * This test validates the specific case where the 2nd UL TBF is done through + * 1phase-access. + */ +testcase TC_ul_tbf_1phase_while_dl_ass_pch() runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var octetstring data := f_rnd_octstring(10); + var uint32_t sched_fn; + var uint32_t poll_fn; + var uint32_t dl_fn; + var GprsMS ms; + timer T; + var octetstring payload; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); + + /* Wait until PCU starts requesting for UL block on this TBF: */ + f_ms_wait_usf(ms); + + /* Send one UL block (with TLLI since we are in One-Phase Access + contention resolution) and make sure it is ACKED fine. */ + payload := f_rnd_octstring(f_ultbf_payload_fill_length(ms.ul_tbf, true)); + dl_fn := f_rx_rlcmac_dl_block_exp_dummy(dl_block); + f_ms_tx_ul_data_block(ms, payload, cv := 1, with_tlli := true, fn := f_next_pdch_block(dl_fn)); + + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); + payload := f_rnd_octstring(f_ultbf_payload_fill_length(ms.ul_tbf, false)); + f_ms_tx_ul_data_block(ms, payload, cv := 0); + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); + + /* 1 UL block should be received in SGSN */ + BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id)); + /* Now SGSN sends some DL data, PCU will page on CCCH (PCH) */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data, imsi := ts_BSSGP_IMSI(ms.imsi))); + + /* UL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + f_ms_exp_dl_tbf_ass_ccch(ms); + + /* Now the PCU is waiting for the MS to move to PDCH in order to send data to it (timer X2002). + * The MS decides it want to send new Ul TBF so it send RACH req to ask for it: */ + f_ms_establish_ul_tbf(ms); -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; + /* Wait until PCU starts requesting for UL block on this TBF: */ + dl_fn := f_ms_wait_usf(ms); - f_llc_dec_and_log(c_gmm_att_pcu); + /* Send one UL block (with TLLI since we are in One-Phase Access + * contention resolution) and make sure it is ACKED fine. */ + payload := f_rnd_octstring(f_ultbf_payload_fill_length(ms.ul_tbf, true)); + f_ms_tx_ul_data_block(ms, payload, cv := 1, with_tlli := true, fn := f_next_pdch_block(dl_fn)); - //f_llc_assert(f_LLC_append_fcs(c_gmm_att_pcu_nofcs), c_gmm_att_pcu); + /* UL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); - 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)); + /* The PCU considers the MS to have gone over Contention Resolution + * after having sent the first UL ACK/NACK to it, hence next it will try to + * assign the DL-TBF to send the data it received from the SGSN previously: */ + f_ms_rx_pkt_ass_pacch(ms, poll_fn, tr_RLCMAC_DL_PACKET_ASS); + /* the MS ACKs the PKT_DL_ASS: */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), poll_fn); + + /* We should finally receive the DL-data that was received previously from the SGSN: */ + f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data, 0); + + f_shutdown(__BFILE__, __LINE__, final := true); } -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; +/* Same as TC_ul_tbf_2phase_while_dl_ass_pch, but this test validates the + * specific case where the 2nd UL TBF is done through 2phase-access. */ +testcase TC_ul_tbf_2phase_while_dl_ass_pch() runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var octetstring data := f_rnd_octstring(10); + var uint32_t sched_fn; + var uint32_t poll_fn; + var uint32_t dl_fn; + var GprsMS ms; + timer T; + var octetstring payload; + var PollFnCtx pollctx; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); - log(c_dl_ul_ack_nack); - dcb := dec_RlcmacDlCtrlBlock(c_dl_ul_ack_nack); - log(dcb); - //log(dec_RlcmacDlCtrlMsg(dcb.payload)); + /* Wait until PCU starts requesting for UL block on this TBF: */ + f_ms_wait_usf(ms); - f_rlcmac_dld_decenc(c_dl_data); + /* Send one UL block (with TLLI since we are in One-Phase Access + contention resolution) and make sure it is ACKED fine. */ + payload := f_rnd_octstring(f_ultbf_payload_fill_length(ms.ul_tbf, true)); + dl_fn := f_rx_rlcmac_dl_block_exp_dummy(dl_block); + f_ms_tx_ul_data_block(ms, payload, cv := 1, with_tlli := true, fn := f_next_pdch_block(dl_fn)); - f_rlcmac_dld_decenc(c_dl_data2); + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); + payload := f_rnd_octstring(f_ultbf_payload_fill_length(ms.ul_tbf, false)); + f_ms_tx_ul_data_block(ms, payload, cv := 0); + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, sched_fn); - log(c_ul_ctrl_ack); - ucb := dec_RlcmacUlCtrlBlock(c_ul_ctrl_ack); - log(ucb); - //log(dec_RlcmacUlCtrlMsg(ucb.payload)); + /* 1 UL block should be received in SGSN */ + BSSGP[0].receive(tr_BSSGP_UL_UD(ms.tlli, mp_gb_cfg.bvc[0].cell_id)); + /* Now SGSN sends some DL data, PCU will page on CCCH (PCH) */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data, imsi := ts_BSSGP_IMSI(ms.imsi))); - log(c_ul_dl_ack_nack); - ucb := dec_RlcmacUlCtrlBlock(c_ul_dl_ack_nack); - log(ucb); - //log(dec_RlcmacUlCtrlMsg(ucb.payload)); + /* UL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + f_ms_exp_dl_tbf_ass_ccch(ms); - log(c_dl_ul_assign); - dcb := dec_RlcmacDlCtrlBlock(c_dl_ul_assign); - log(dcb); - //log(dec_RlcmacDlCtrlMsg(dcb.payload)); + /* Now the PCU is waiting for the MS to move to PDCH in order to send data to it (timer X2002). + * The MS decides it want to send new Ul TBF so it send RACH req to ask for it: */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap_gprs_def)); - const octetstring c_uld_tlli_noext := '080101a61cab5201c001080103e5e000310a0005f4e61cab5232f44000c8001d1b00'O; - f_rlcmac_uld_decenc(c_uld_tlli_noext); + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), pollctx.fn, nr := pollctx.tstrxbts); - 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); + /* Now that MS seized the UL-TBF, PCU sends DL-TBF Assignment on PACCH */ + f_ms_rx_pkt_ass_pacch(ms, poll_fn, tr_RLCMAC_DL_PACKET_ASS); + /* the MS ACKs the PKT_DL_ASS: */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), poll_fn); - f_rlcmac_ul_decenc(c_ul_dl_ack_nack); + /* We should finally receive the DL-data that was received previously from the SGSN: */ + f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data, 0); + + f_shutdown(__BFILE__, __LINE__, final := true); } -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"); - mtc.stop; +private function f_TC_egprs_pkt_chan_req(in EGPRSPktChRequest req, + template GsmRrMessage t_imm_ass := ?, + PCUIF_BurstType bt := BURST_TYPE_1) +runs on RAW_PCU_Test_CT { + var GsmRrMessage rr_msg; + var uint16_t ra11; + + ra11 := enc_EGPRSPktChRequest2uint(req); + log("Sending EGPRS Packet Channel Request (", ra11, "): ", req); + + rr_msg := f_pcuif_tx_rach_rx_imm_ass(ra := ra11, is_11bit := 1, burst_type := bt); + if (not match(rr_msg, t_imm_ass)) { + setverdict(fail, "Immediate Assignment does not match"); + f_shutdown(__BFILE__, __LINE__); } + + setverdict(pass); } -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"); - mtc.stop; +testcase TC_egprs_pkt_chan_req_signalling() runs on RAW_PCU_Test_CT { + var template GsmRrMessage imm_ass; + var template IaRestOctets rest; + var template EgprsUlAss ul_ass; + const integer num_req := 6; + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); + f_statsd_reset(); + + var EGPRSPktChRequest req := { + /* NOTE: other fields are set in the loop */ + signalling := { tag := '110011'B } + }; + + for (var integer i := 0; i < num_req; i := i + 1) { + var BIT5 ext_ra := int2bit(f_rnd_int(32), 5); + req.signalling.random_bits := ext_ra; + + /* For signalling, do we expect Multiblock UL TBF Assignment? */ + ul_ass := tr_EgprsUlAssMultiblock(ext_ra := ext_ra); + rest := tr_IaRestOctets_EGPRSULAss(ul_ass); + imm_ass := tr_IMM_TBF_ASS(dl := false, rest := rest); + + f_TC_egprs_pkt_chan_req(req, imm_ass); } + + var StatsDExpects expect := { + { name := "TTCN3.bts.0.rach.requests", mtype := "c", min := num_req, max := num_req }, + { name := "TTCN3.bts.0.rach.requests.11bit", mtype := "c", min := num_req, max := num_req }, + { name := "TTCN3.bts.0.rach.requests.one_phase", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.rach.requests.two_phase", mtype := "c", min := num_req, max := num_req }, + { name := "TTCN3.bts.0.immediate.assignment_UL", mtype := "c", min := num_req, max := num_req }, + { name := "TTCN3.bts.0.immediate.assignment_ul.one_phase", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.immediate.assignment_ul.two_phase", mtype := "c", min := num_req, max := num_req }, + { name := "TTCN3.bts.0.immediate.assignment_ul.contention_resolution_success", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.immediate.assignment_DL", mtype := "c", min := 0, max := 0 } + }; + f_statsd_expect(expect); + + f_shutdown(__BFILE__, __LINE__, final := true); } -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"); - mtc.stop; +testcase TC_egprs_pkt_chan_req_one_phase() runs on RAW_PCU_Test_CT { + var template GsmRrMessage imm_ass; + var template IaRestOctets rest; + var template EgprsUlAss ul_ass; + const integer num_req := 6; + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); + f_statsd_reset(); + + var EGPRSPktChRequest req := { + /* NOTE: other fields are set in the loop */ + one_phase := { tag := '0'B } + }; + + for (var integer i := 0; i < num_req; i := i + 1) { + var BIT5 ext_ra := int2bit(f_rnd_int(32), 5); + var BIT5 mslot_class := int2bit(f_rnd_int(32), 5); + var BIT2 priority := substr(ext_ra, 0, 2); + var BIT3 rand := substr(ext_ra, 2, 3); + + req.one_phase.multislot_class := mslot_class; + req.one_phase.priority := priority; + req.one_phase.random_bits := rand; + + /* For one phase access, do we expect Dynamic UL TBF Assignment? */ + ul_ass := tr_EgprsUlAssDynamic(ext_ra := ext_ra); + rest := tr_IaRestOctets_EGPRSULAss(ul_ass); + imm_ass := tr_IMM_TBF_ASS(dl := false, rest := rest); + + f_TC_egprs_pkt_chan_req(req, imm_ass); } + + var StatsDExpects expect := { + { name := "TTCN3.bts.0.rach.requests", mtype := "c", min := num_req, max := num_req }, + { name := "TTCN3.bts.0.rach.requests.11bit", mtype := "c", min := num_req, max := num_req }, + { name := "TTCN3.bts.0.rach.requests.one_phase", mtype := "c", min := num_req, max := num_req }, + { name := "TTCN3.bts.0.rach.requests.two_phase", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.immediate.assignment_UL", mtype := "c", min := num_req, max := num_req }, + { name := "TTCN3.bts.0.immediate.assignment_ul.one_phase", mtype := "c", min := num_req, max := num_req }, + { name := "TTCN3.bts.0.immediate.assignment_ul.two_phase", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.immediate.assignment_ul.contention_resolution_success", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.immediate.assignment_DL", mtype := "c", min := 0, max := 0 } + }; + f_statsd_expect(expect); + + f_shutdown(__BFILE__, __LINE__, final := true); } +testcase TC_egprs_pkt_chan_req_two_phase() runs on RAW_PCU_Test_CT { + var template GsmRrMessage imm_ass; + var template IaRestOctets rest; + var template EgprsUlAss ul_ass; + const integer num_req := 6; + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); + f_statsd_reset(); + + var EGPRSPktChRequest req := { + /* NOTE: other fields are set in the loop */ + two_phase := { tag := '110000'B } + }; + + for (var integer i := 0; i < num_req; i := i + 1) { + var BIT5 ext_ra := int2bit(f_rnd_int(32), 5); + var BIT2 priority := substr(ext_ra, 0, 2); + var BIT3 rand := substr(ext_ra, 2, 3); + + req.two_phase.priority := priority; + req.two_phase.random_bits := rand; -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)); + /* For two phase access, do we expect Multiblock UL TBF Assignment? */ + ul_ass := tr_EgprsUlAssMultiblock(ext_ra := ext_ra); + rest := tr_IaRestOctets_EGPRSULAss(ul_ass); + imm_ass := tr_IMM_TBF_ASS(dl := false, rest := rest); - log(c_ia_tbf); - log(dec_GsmRrMessage(c_ia_tbf)); + f_TC_egprs_pkt_chan_req(req, imm_ass); + } + + var StatsDExpects expect := { + { name := "TTCN3.bts.0.rach.requests", mtype := "c", min := num_req, max := num_req }, + { name := "TTCN3.bts.0.rach.requests.11bit", mtype := "c", min := num_req, max := num_req }, + { name := "TTCN3.bts.0.rach.requests.one_phase", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.rach.requests.two_phase", mtype := "c", min := num_req, max := num_req }, + { name := "TTCN3.bts.0.immediate.assignment_UL", mtype := "c", min := num_req, max := num_req }, + { name := "TTCN3.bts.0.immediate.assignment_ul.one_phase", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.immediate.assignment_ul.two_phase", mtype := "c", min := num_req, max := num_req }, + { name := "TTCN3.bts.0.immediate.assignment_ul.contention_resolution_success", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.immediate.assignment_DL", mtype := "c", min := 0, max := 0 } + }; + f_statsd_expect(expect); + + f_shutdown(__BFILE__, __LINE__, final := true); } -function f_seq_octstr(integer len) return octetstring { - var octetstring payload := ''O; - for (var integer i := 0; i < len; i := i+1 ) { - payload := payload & int2oct(i mod 256, 1); - } - return payload; +private function f_TC_egprs_pkt_chan_req_reject(bitstring ra11, uint32_t fn, + template IARRestOctets rest := ?, + PCUIF_BurstType bt := BURST_TYPE_1, + template WaitIndication wi := ?) +runs on RAW_PCU_Test_CT { + var template ReqRefWaitInd tr_ref; + var GsmRrMessage rr_msg; + + /* Send RACH.ind with malformed EGPRS Packet Channel Request */ + BTS.send(ts_PCUIF_RACH_IND(bts_nr := 0, trx_nr := 0, ts_nr := 0, + ra := bit2int(ra11), is_11bit := 1, + burst_type := bt, fn := fn, + arfcn := 871)); + + /* Abuse f_pcuif_rx_imm_ass(): wait for Immediate Assignment Reject */ + rr_msg := f_pcuif_rx_imm_ass(t_imm_ass := tr_IMM_ASS_REJ); + + /* Just to have a short-name reference to the actual message */ + var ImmediateAssignmentReject iar := rr_msg.payload.imm_ass_rej; + + /* Make sure that Request Reference list contains at least one entry + * with our TDMA frame number, and RA is set to 'reserved' value 127. */ + tr_ref := tr_ReqRefWaitInd(f_compute_ReqRef(127, fn), wi); + if (not match(iar.payload, { *, tr_ref, * })) { + setverdict(fail, "Request Reference list does not match"); + f_shutdown(__BFILE__, __LINE__); + } + + /* Match Feature Indicator (must indicate PS domain) */ + if (not match(iar.feature_ind, FeatureIndicator:{?, false, true})) { + setverdict(fail, "Feature Indicator does not match"); + f_shutdown(__BFILE__, __LINE__); + } + + /* Match IAR Rest Octets */ + if (not match(iar.rest_octets, rest)) { + setverdict(fail, "IAR Rest Octets does not match: ", + iar.rest_octets, " vs expected ", rest); + f_shutdown(__BFILE__, __LINE__); + } + + setverdict(pass); } -testcase TC_ul_tbf_single_llc_sizes() runs on dummy_CT { - g_mmctx.imsi := '262420123456789'H; - g_mmctx.tlli := f_random_tlli(); - f_init(); +/* Verify the contents of RR Immediate Assignment Reject message and its + * Rest Octets sent in response to EGPRS Packet Channel Request (11 bit). */ +testcase TC_egprs_pkt_chan_req_reject_content() runs on RAW_PCU_Test_CT { + var template IARRestOctets rest; + var BIT5 ext_ra; + const integer num_req := 6; - for (var integer len := 1; len <= 1560; len := len+1) { - log("Testing Uplink TBF with single LLC-PDU of ", len, " bytes"); - var octetstring payload := f_seq_octstr(len); - var UlTbfPars ul_tbf_pars := { - ack_mode := true, - initial_cs := CS1, - llc_pdus := { - valueof(ts_LLC_UI(payload, c_LLC_SAPI_LLGMM, '0'B, g_mmctx.n_u)) - } + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); + f_statsd_reset(); + + for (var integer i := 0; i < num_req; i := i + 1) { + ext_ra := int2bit(f_rnd_int(32), 5); /* 5 LSB's of RA11 */ + rest := tr_IARRestOctets({ *, tr_ExtRAOpt(ext_ra), * }); + + /* Intentionally incorrect message (see table 11.2.5a.2) */ + f_TC_egprs_pkt_chan_req_reject('111111'B & ext_ra, 1337 + i, rest); + } + + var StatsDExpects expect := { + { name := "TTCN3.bts.0.rach.requests", mtype := "c", min := num_req, max := num_req }, + { name := "TTCN3.bts.0.rach.requests.11bit", mtype := "c", min := num_req, max := num_req }, + { name := "TTCN3.bts.0.rach.requests.one_phase", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.rach.requests.two_phase", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.rach.requests.unexpected", mtype := "c", min := num_req, max := num_req }, + { name := "TTCN3.bts.0.immediate.assignment_UL", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.immediate.assignment_rej", mtype := "c", min := num_req, max := num_req }, + { name := "TTCN3.bts.0.immediate.assignment_DL", mtype := "c", min := 0, max := 0 } + }; + f_statsd_expect(expect); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* At the moment, the IUT does not support any emergency services. Make sure + * that EGPRS Packet Channel Request for an emergency call is properly rejected. */ +testcase TC_egprs_pkt_chan_req_reject_emergency() runs on RAW_PCU_Test_CT { + var template IARRestOctets rest; + var BIT5 ext_ra; + var BIT11 ra11; + const integer num_req := 6; + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); + f_statsd_reset(); + + var EGPRSPktChRequest req := { + /* NOTE: other fields are set in the loop */ + emergency := { tag := '110111'B } + }; + + for (var integer i := 0; i < num_req; i := i + 1) { + ext_ra := int2bit(f_rnd_int(32), 5); /* 5 LSB's of RA11 */ + rest := tr_IARRestOctets({ *, tr_ExtRAOpt(ext_ra), * }); + + req.emergency.random_bits := ext_ra; + ra11 := enc_EGPRSPktChRequest2bits(req); + + /* Intentionally incorrect message (see table 11.2.5a.2) */ + f_TC_egprs_pkt_chan_req_reject(ra11, 1337 + i, rest); + } + + var StatsDExpects expect := { + { name := "TTCN3.bts.0.rach.requests", mtype := "c", min := num_req, max := num_req }, + { name := "TTCN3.bts.0.rach.requests.11bit", mtype := "c", min := num_req, max := num_req }, + { name := "TTCN3.bts.0.rach.requests.one_phase", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.rach.requests.two_phase", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.rach.requests.unexpected", mtype := "c", min := num_req, max := num_req }, + { name := "TTCN3.bts.0.immediate.assignment_UL", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.immediate.assignment_rej", mtype := "c", min := num_req, max := num_req }, + { name := "TTCN3.bts.0.immediate.assignment_DL", mtype := "c", min := 0, max := 0 } + }; + f_statsd_expect(expect); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Make sure that IUT responds with RR Immediate Assignment Reject due to exhaustion. */ +testcase TC_egprs_pkt_chan_req_reject_exhaustion() runs on RAW_PCU_Test_CT { + var PCUIF_info_ind info_ind; + var template IARRestOctets rest; + var BIT11 ra11; + + info_ind := valueof(ts_PCUIF_INFO_default); + info_ind.t3142 := 3; + + /* Only the first TRX is enabled. */ + f_PCUIF_PDCHMask_set(info_ind, '00000000'B, (1 .. 7)); + f_PCUIF_PDCHMask_set(info_ind, '00000001'B, 0); + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + f_statsd_reset(); + + var EGPRSPktChRequest req := { + one_phase := { + tag := '0'B, + multislot_class := '10101'B, + priority := '01'B, + random_bits := '101'B } - var UlTbfState ul_tbf_state; - f_UlTbfState_init(ul_tbf_state, ul_tbf_pars); - f_ul_tbf(ul_tbf_state); - f_sleep(1.0); + }; + + /* We send 7 requests, the IUT gives us all available USFs (0..6). + * TODO: make it configurable: usf_max := mp_pdch_ts_num * 7. */ + for (var integer i := 0; i < 7; i := i + 1) { + req.one_phase.random_bits := int2bit(f_rnd_int(8), 3); + f_TC_egprs_pkt_chan_req(req, tr_IMM_TBF_ASS); } - f_exit(); + ra11 := enc_EGPRSPktChRequest2bits(req); + rest := tr_IARRestOctets({ *, tr_ExtRAOpt(substr(ra11, 6, 5)), * }); + + /* At this point, the IUT should run out of free USFs */ + f_TC_egprs_pkt_chan_req_reject(ra11, 1870, rest, wi := info_ind.t3142); + + var StatsDExpects expect := { + { name := "TTCN3.bts.0.rach.requests", mtype := "c", min := 8, max := 8 }, + { name := "TTCN3.bts.0.rach.requests.11bit", mtype := "c", min := 8, max := 8 }, + { name := "TTCN3.bts.0.rach.requests.one_phase", mtype := "c", min := 8, max := 8 }, + { name := "TTCN3.bts.0.rach.requests.two_phase", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.rach.requests.unexpected", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.immediate.assignment_UL", mtype := "c", min := 7, max := 7 }, + { name := "TTCN3.bts.0.immediate.assignment_ul.one_phase", mtype := "c", min := 7, max := 7 }, + { name := "TTCN3.bts.0.immediate.assignment_ul.two_phase", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.immediate.assignment_ul.contention_resolution_success", mtype := "c", min := 0, max := 0 }, + { name := "TTCN3.bts.0.immediate.assignment_rej", mtype := "c", min := 1, max := 1 }, + { name := "TTCN3.bts.0.immediate.assignment_DL", mtype := "c", min := 0, max := 0 } + }; + f_statsd_expect(expect); + + f_shutdown(__BFILE__, __LINE__, final := true); } -testcase TC_ul_tbf() runs on dummy_CT { - g_mmctx.imsi := '262420123456789'H; - g_mmctx.tlli := f_random_tlli(); - f_init(); +/* Randomly generate a set of hopping parameters for one timeslot */ +private function f_TC_pcuif_fh_params_gen(integer max_ma_len) +return template (value) PCUIF_InfoTrxTs { + /* Pick a random MA length in range 2 .. max_ma_len */ + var integer ma_len := 2 + f_rnd_int(max_ma_len - 2); - var octetstring payload := f_seq_octstr(1023); - var UlTbfPars ul_tbf_pars := { - ack_mode := true, - initial_cs := CS1, - llc_pdus := { - valueof(ts_LLC_UI(payload, c_LLC_SAPI_LLGMM, '0'B, g_mmctx.n_u)), - valueof(ts_LLC_UI(payload, c_LLC_SAPI_LLGMM, '0'B, g_mmctx.n_u+1)), - valueof(ts_LLC_UI(payload, c_LLC_SAPI_LLGMM, '0'B, g_mmctx.n_u+2)), - valueof(ts_LLC_UI(payload, c_LLC_SAPI_LLGMM, '0'B, g_mmctx.n_u+3)), - valueof(ts_LLC_UI(payload, c_LLC_SAPI_LLGMM, '0'B, g_mmctx.n_u+4)), - valueof(ts_LLC_UI(payload, c_LLC_SAPI_LLGMM, '0'B, g_mmctx.n_u+5)) + return ts_PCUIF_InfoTrxTsH1(tsc := f_rnd_int(7), + hsn := f_rnd_int(63), + maio := f_rnd_int(63), + ma := f_rnd_bitstring(ma_len)); +} + +private function f_TC_pcuif_fh_check_imm_ass(in PCUIF_info_ind info_ind, + in GsmRrMessage rr_msg) +{ + var ImmediateAssignment ia := rr_msg.payload.imm_ass; + var PCUIF_InfoTrxTs ts := info_ind.trx[0].ts[ia.pkt_chan_desc.tn]; + + var template PacketChannelDescription tr_pkt_chan_desc := { + channel_Type_spare := ?, + tn := ?, + tsc := ts.tsc, + presence := '1'B, + zero := omit, + one := { + maio := ts.maio, + hsn := ts.hsn } }; - var UlTbfState ul_tbf_state; - f_UlTbfState_init(ul_tbf_state, ul_tbf_pars); - f_ul_tbf(ul_tbf_state); - f_exit(); + if (not match(ia.pkt_chan_desc, tr_pkt_chan_desc)) { + setverdict(fail, "Packet Channel Description does not match: ", + ia.pkt_chan_desc, " vs ", tr_pkt_chan_desc); + } + + /* Mobile Allocation is expected to be octet-aligned */ + var uint8_t ma_oct_len := (ts.ma_bit_len + 8 - 1) / 8; + var template MobileAllocationLV tr_ma := { + len := ma_oct_len, /* in bytes */ + ma := substr(ts.ma, 0, ma_oct_len * 8) + }; + + if (not match(ia.mobile_allocation, tr_ma)) { + setverdict(fail, "Mobile Allocation does not match: ", + ia.mobile_allocation, " vs ", tr_ma); + } + + setverdict(pass); } -testcase TC_dl_tbf() runs on dummy_CT { - g_mmctx.imsi := '262420123456789'H; - g_mmctx.tlli := f_random_tlli(); - f_init(); +/* Make sure that Immediate (UL EGPRS TBF) Assignment contains hopping parameters */ +testcase TC_pcuif_fh_imm_ass_ul_egprs() runs on RAW_PCU_Test_CT { + var template (value) PCUIF_info_ind info_ind := ts_PCUIF_INFO_default; + var GprsMS ms := valueof(t_GprsMS_def); + + /* Enable frequency hopping on TRX0/TS7 */ + info_ind.trx[0].ts[7] := f_TC_pcuif_fh_params_gen(32); - f_establish_dl_tbf(); + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); - f_exit(); + /* EGPRS Packet Channel Request (cause=Signalling) */ + f_ms_use_ra(ms, bit2int('11001101010'B), ra_is_11bit := 1); + + /* Establish an Uplink EGPRS TBF */ + f_ms_establish_ul_tbf(ms); + + f_TC_pcuif_fh_check_imm_ass(valueof(info_ind), ms.ul_tbf.rr_imm_ass); + f_shutdown(__BFILE__, __LINE__, final := true); } -function f_wait_tbf_dl(TbfNr tbf_nr, GprsTlli tlli) runs on dummy_CT return ImmediateAssignment { - var template PacketDlAssign dl_ass := tr_PacketDlAssign(tlli); - var template IaRestOctets rest := tr_IaRestOctets_DLAss(dl_ass); - var LAPDm_ph_data ph_data; - var GsmRrMessage rr; - timer T := 10.0; - T.start; - alt { - [] L1.receive(LAPDm_ph_data:{sacch:=?,sapi:=0,lapdm:={bbis:=?}}) -> value ph_data { - rr := dec_GsmRrMessage(ph_data.lapdm.bbis.payload); - log("PCH/AGCH DL RR: ", rr); - if (match(rr, tr_IMM_TBF_ASS(dl := true, rest := rest))) { - var TbfPars tbf_pars := valueof(t_TbfParsInit); - log("Received IMM.ASS for our TLLI!"); - tbf_pars.tfi[rr.payload.imm_ass.pkt_chan_desc.tn] := - rr.payload.imm_ass.rest_octets.hh.pa.uldl.ass.dl.group1.tfi_assignment; - L1.send(TBF_DL_establish_req:{tbf_nr, tbf_pars}); +/* Make sure that Immediate (UL TBF) Assignment contains hopping parameters */ +testcase TC_pcuif_fh_imm_ass_ul() runs on RAW_PCU_Test_CT { + var template (value) PCUIF_info_ind info_ind := ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS); + var GprsMS ms := valueof(t_GprsMS_def); + + /* Enable frequency hopping on TRX0/TS7 */ + info_ind.trx[0].ts[7] := f_TC_pcuif_fh_params_gen(32); + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); + + f_TC_pcuif_fh_check_imm_ass(valueof(info_ind), ms.ul_tbf.rr_imm_ass); + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Make sure that Immediate (DL TBF) Assignment contains hopping parameters */ +testcase TC_pcuif_fh_imm_ass_dl() runs on RAW_PCU_Test_CT { + var template (value) PCUIF_info_ind info_ind := ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS); + var GprsMS ms := valueof(t_GprsMS_def); + + /* Enable frequency hopping on TRX0/TS7 */ + info_ind.trx[0].ts[7] := f_TC_pcuif_fh_params_gen(16); + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* SGSN sends some DL data, PCU will page on CCCH (PCH) */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, f_rnd_octstring(12))); + + /* The PCU will send an IMMEDIATE ASSIGNMENT message on the AGCH. It + * should be noted that IMMEDIATE ASSIGNMENT messages for DL TBFs are + * commonly sent on the PCH. However in this case the IMSI is not + * known to the PCU and hence no paging group can be calculated. The + * PCU is then forced to use the AGCH. + * + * As a background information to this it should be noted that this + * works because the IMSI is commonly unknown during a GMM ATTACH + * REQUEST. In this phase the MS is in non-DRX mode, which means that + * it listens on all CCCH blocks (PCH and AGCH) + * + * See also: 3gpp TS 44.060, section 5.5.1.5 and + * 3gpp TS 45.002, section 6.5.3, 6.5.6 + */ + f_ms_exp_dl_tbf_ass_ccch(ms, PCU_IF_SAPI_AGCH_2); + + f_TC_pcuif_fh_check_imm_ass(valueof(info_ind), ms.dl_tbf.rr_imm_ass); + f_shutdown(__BFILE__, __LINE__, final := true); +} + +private function f_TC_pcuif_fh_check_pkt_ass(in PCUIF_info_ind info_ind, + in FrequencyParameters fp) +{ + /* FIXME: TRX0/TS7 is a hard-coded expectation, make it configurable */ + var PCUIF_InfoTrxTs ts := info_ind.trx[0].ts[7]; + + /* Table 12.8.1: Frequency Parameters information elements */ + var template FrequencyParameters tr_fp := { + tsc := ts.tsc, + presence := '10'B, /* Direct encoding 1 */ + arfcn := omit, + indirect := omit, + direct1 := { + maio := ts.maio, + /* Table 12.10a.1: GPRS Mobile Allocation information elements */ + mobile_allocation := { + hsn := ts.hsn, + rfl_number_list_present := '0'B, + rfl_number_list := omit, + ma_present := '0'B, /* inverted logic */ + ma_length := ts.ma_bit_len, + ma_bitmap := substr(ts.ma, 0, ts.ma_bit_len) + } + }, + direct2 := omit + }; + + if (not match(fp, tr_fp)) { + setverdict(fail, "Frequency Parameters IE does not match: ", + fp, " vs ", tr_fp); + } + + setverdict(pass); +} + +/* Make sure that Packet Uplink Assignment contains hopping parameters */ +testcase TC_pcuif_fh_pkt_ass_ul() runs on RAW_PCU_Test_CT { + var template (value) PCUIF_info_ind info_ind := ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS); + var GprsMS ms := valueof(t_GprsMS_def); + var uint32_t poll_fn; + + /* Enable frequency hopping on TRX0/TS7 */ + info_ind.trx[0].ts[7] := f_TC_pcuif_fh_params_gen(33); + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Single block (two phase) packet access */ + var uint16_t ra := bit2int(chan_req_sb); + f_ms_use_ra(ms, ra, ra_is_11bit := 0); + + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); + + /* Send Packet Resource Request, so the network will allocate an Uplink resource */ + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, omit)), + fn := ms.ul_tbf.start_time_fn); + + /* Expect an RLC/MAC block with Packet Uplink Assignment on PACCH (see 11.2.29) */ + f_ms_rx_pkt_ass_pacch(ms, poll_fn, tr_RLCMAC_UL_PACKET_ASS); + var PacketUlAssignment ua := ms.ul_tbf.ass.pacch; + + /* 3GPP TS 44.060, section 12.8 "Frequency Parameters" */ + var template (omit) FrequencyParameters fp; + if (ua.is_egprs == '1'B) { + fp := ua.egprs.freq_par; + } else { + fp := ua.gprs.freq_par; + } + + /* This is an optional IE, so it's worth to check its presence */ + if (istemplatekind(fp, "omit")) { + setverdict(fail, "Frequency Parameters IE is not present"); + f_shutdown(__BFILE__, __LINE__); + } + + f_TC_pcuif_fh_check_pkt_ass(valueof(info_ind), valueof(fp)); + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Make sure that Packet Downlink Assignment contains hopping parameters */ +testcase TC_pcuif_fh_pkt_ass_dl() runs on RAW_PCU_Test_CT { + var template (value) PCUIF_info_ind info_ind := ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS); + var octetstring data := f_rnd_octstring(10); + var GprsMS ms := valueof(t_GprsMS_def); + var RlcmacDlBlock dl_block; + var uint32_t poll_fn; + + /* Enable frequency hopping on TRX0/TS7 */ + info_ind.trx[0].ts[7] := f_TC_pcuif_fh_params_gen(33); + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Establish an Uplink TBF */ + f_ms_establish_ul_tbf(ms); + + /* Wait until PCU starts requesting for UL block on this TBF: */ + f_ms_wait_usf(ms); + + /* Send an Uplink block, so this TBF becomes "active" */ + f_ms_tx_ul_data_block(ms, data, with_tlli := true, fn := ms.ul_tbf.start_time_fn); + + /* DL ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + f_rx_rlcmac_dl_block_exp_ack_nack(dl_block, poll_fn); + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), poll_fn); + + /* SGSN sends some DL data, PCU will assign Downlink resource on PACCH */ + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data)); + + /* Expect an RLC/MAC block with Packet Downlink Assignment on PACCH (see 11.2.29) */ + f_ms_rx_pkt_ass_pacch(ms, poll_fn, tr_RLCMAC_DL_PACKET_ASS); + var PacketDlAssignment da := ms.dl_tbf.ass.pacch; + + /* This is an optional IE, so it's worth to check its presence */ + if (not ispresent(da.freq_par)) { + setverdict(fail, "Frequency Parameters IE is not present"); + f_shutdown(__BFILE__, __LINE__); + } + + f_TC_pcuif_fh_check_pkt_ass(valueof(info_ind), da.freq_par); + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Check if the IUT handles subsequent INFO.ind messages */ +testcase TC_pcuif_info_ind_subsequent() runs on RAW_PCU_Test_CT { + var template (value) PCUIF_info_ind info_ind := ts_PCUIF_INFO_default; + var BTS_PDTCH_Block data_msg; + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Send 16 conseqtive INFO.ind messages and check that the IUT stays alive */ + for (var integer i := 0; i < 16; i := i + 1) { + BTS.send(ts_PCUIF_INFO_IND(0, info_ind)); + f_pcuif_rx_data_req_pdtch(data_msg); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Verify allocation of several MS along PDCH ts of several TRX. See OS#1775, SYS#5030 */ +testcase TC_multitrx_multims_alloc() runs on RAW_PCU_Test_CT { + var PCUIF_info_ind info_ind; + var integer i; + const integer num_ms := 8; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(num_ms); + + info_ind := valueof(ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS)); + /* Only the 3 first TRX are enabled. The enabled ones all have same + amount of resources, hence same amount of initial resources. */ + f_PCUIF_PDCHMask_set(info_ind, '00000000'B, (3 .. 7)); + f_PCUIF_PDCHMask_set(info_ind, '00000011'B, 0); + f_PCUIF_PDCHMask_set(info_ind, '00001100'B, 1); + f_PCUIF_PDCHMask_set(info_ind, '11000000'B, 2); + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_multi_ms_bssgp_register(); + + /* Establish an Uplink TBF for each GprsMS instance */ + f_multi_ms_establish_tbf(do_activate := false); + + /* Check if all TBFs are allocated on different TRX in an uniform way */ + for (i := 0; i < num_ms; i := i + 1) { + if (g_ms[i].ul_tbf.arfcn != info_ind.trx[i mod 3].arfcn) { + setverdict(fail, "Got assigned ARFCN ", g_ms[i].ul_tbf.arfcn, + " vs exp ", info_ind.trx[i mod 3].arfcn); + f_shutdown(__BFILE__, __LINE__); + } + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Verify concurrent PDCH use of EGPRS and GPRS (EGPRS dl rlcmac blk is + * downgraded to CS1-4 so that GPRS can read the USF). + * See 3GPP TS 44.060 5.2.4a "Multiplexing of GPRS, EGPRS and EGPRS2 capable mobile stations" + */ +testcase TC_multiplex_dl_gprs_egprs() runs on RAW_PCU_Test_CT { + var PCUIF_info_ind info_ind; + const integer num_ms := 2; /* 2 MS, first one is GPRS-only, second one is EGPRS */ + var PollFnCtx pollctx; + var uint32_t sched_fn, dl_fn, ack_fn; + var octetstring data := f_rnd_octstring(10); + var RlcmacDlBlock dl_block; + var integer tx_data_remain := 5; + var integer tgt_ms, usf_ms; + var integer ms_gprs_usf_count[num_ms] := { 0, 0 }; + var integer ms_egprs_usf_count[num_ms] := { 0, 0 }; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(num_ms); + + info_ind := valueof(ts_PCUIF_INFO_default); + /* Only use 1 PDCH to make sure both end up in the same slot: */ + f_PCUIF_PDCHMask_set(info_ind, '00000001'B, 0); + f_PCUIF_PDCHMask_set(info_ind, '00000000'B, (1 .. 7)); + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Set Initial MCS > 4 and maintain it non-variable to simplify test */ + g_mcs_initial_dl := 5; + g_mcs_max_dl := 5; + f_pcuvty_set_allowed_cs_mcs(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_multi_ms_bssgp_register(); + + /* Establish UL TBF for MS0 (GPRS-only) */ + pollctx := f_ms_establish_ul_tbf_2phase_access(g_ms[0], ts_RlcMacUlCtrl_PKT_RES_REQ(g_ms[0].tlli, ms_racap_gprs_def)); + if (not match(g_ms[0].ul_tbf.tx_cs_mcs, cs_gprs_any)) { + setverdict(fail, "Wrong CS_MCS ", g_ms[0].ul_tbf.tx_cs_mcs, " received vs exp ", cs_gprs_any); + f_shutdown(__BFILE__, __LINE__); + } + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(g_ms[0], ts_RLCMAC_CTRL_ACK(g_ms[0].tlli), pollctx.fn, nr := pollctx.tstrxbts); + + /* Establish UL TBF for MS1 (EGPRS) */ + pollctx := f_ms_establish_ul_tbf_2phase_access(g_ms[1], ts_RlcMacUlCtrl_PKT_RES_REQ(g_ms[1].tlli, ms_racap_egprs_def)); + if (not match(g_ms[1].ul_tbf.tx_cs_mcs, mcs_egprs_any)) { + setverdict(fail, "Wrong CS_MCS ", g_ms[1].ul_tbf.tx_cs_mcs, " received vs exp ", mcs_egprs_any); + f_shutdown(__BFILE__, __LINE__); + } + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(g_ms[1], ts_RLCMAC_CTRL_ACK(g_ms[1].tlli), pollctx.fn, nr := pollctx.tstrxbts); + + /* Now SGSN sends some DL data to MS0, PCU will assign a GPRS DL TBF on PACCH */ + BSSGP[0].send(ts_BSSGP_DL_UD(g_ms[0].tlli, data)); + f_sleep(0.1); + f_ms_rx_pkt_ass_pacch(g_ms[0], sched_fn, tr_RLCMAC_DL_PACKET_ASS); + /* DL Ass sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(g_ms[0], ts_RLCMAC_CTRL_ACK(g_ms[0].tlli), sched_fn); + /* After acking the dl assignment, dl tbf goes into FLOW state and PCU will provide DL data when BTS asks for it */ + f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data, 0, cs_gprs_any); + /* ACK the DL block */ + f_dltbf_ack_block(g_ms[0].dl_tbf, dl_block, '0'B); + f_ms_tx_ul_block(g_ms[0], f_dltbf_ts_RLCMAC_DL_ACK_NACK(g_ms[0].dl_tbf, false), + f_dl_block_ack_fn(dl_block, dl_fn)); + + /* Now SGSN sends some DL data to MS1, PCU will assign a EGPRS DL TBF on PACCH */ + BSSGP[0].send(ts_BSSGP_DL_UD(g_ms[1].tlli, data)); + f_sleep(0.1); + f_ms_rx_pkt_ass_pacch(g_ms[1], sched_fn, tr_RLCMAC_DL_PACKET_ASS); + /* DL Ass sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(g_ms[1], ts_RLCMAC_CTRL_ACK(g_ms[1].tlli), sched_fn); + /* After acking the dl assignment, dl tbf goes into FLOW state and PCU will provide DL data when BTS asks for it */ + f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data, 0, mcs_egprs_any); + /* ACK the DL block */ + f_dltbf_ack_block(g_ms[1].dl_tbf, dl_block, '0'B); + f_ms_tx_ul_block(g_ms[1], f_dltbf_ts_RLCMAC_DL_ACK_NACK(g_ms[1].dl_tbf, true), + f_dl_block_ack_fn(dl_block, dl_fn)); + + data := f_rnd_octstring(1400); + BSSGP[0].send(ts_BSSGP_DL_UD(g_ms[0].tlli, data)); + BSSGP[0].send(ts_BSSGP_DL_UD(g_ms[1].tlli, data)); + + for (var integer i := 0; i < 800; i := i + 1) { + f_rx_rlcmac_dl_block(dl_block, dl_fn); + + if (match(dl_block, tr_RLCMAC_DL_DUMMY_CTRL)) { + /* No more data to receive, done */ + break; + } + + usf_ms := -1; + + if (ischosen(dl_block.ctrl)) { + setverdict(fail, "Unexpected DL CTRL block ", dl_block); + f_shutdown(__BFILE__, __LINE__); + } else if (ischosen(dl_block.data_egprs)) { + if (not match(dl_block.data_egprs.mac_hdr.tfi, g_ms[1].dl_tbf.tfi)) { + setverdict(fail, "EGPRS DL DATA not matching EGPRS MS TFI (", g_ms[1].dl_tbf.tfi, "): ", dl_block.data_egprs.mac_hdr.tfi); + f_shutdown(__BFILE__, __LINE__); + } + tgt_ms := 1; + if (match(dl_block.data_egprs.mac_hdr.usf, g_ms[0].ul_tbf.usf[7])) { + if (dl_block.data_egprs.mcs > MCS_4) { + setverdict(fail, "Signalling USF ", dl_block.data_egprs.mac_hdr.usf, " for GPRS-only MS using MCS > 4: ", dl_block); + f_shutdown(__BFILE__, __LINE__); + } + usf_ms := 0; + ms_egprs_usf_count[usf_ms] := ms_egprs_usf_count[usf_ms] + 1; + } else { + if (dl_block.data_egprs.mcs <= MCS_4) { + setverdict(fail, "Using too-low MCS for EGPRS MS: ", dl_block.data_egprs.mcs); + f_shutdown(__BFILE__, __LINE__); + } + if (match(dl_block.data_egprs.mac_hdr.usf, g_ms[1].ul_tbf.usf[7])) { + usf_ms := 1; + ms_egprs_usf_count[usf_ms] := ms_egprs_usf_count[usf_ms] + 1; + } + } } else { + if (not match(dl_block.data.mac_hdr.hdr_ext.tfi, g_ms[0].dl_tbf.tfi)) { + setverdict(fail, "GPRS DL DATA not matching GPRS MS TFI (", g_ms[0].dl_tbf.tfi, "): ", dl_block.data.mac_hdr.hdr_ext.tfi); + f_shutdown(__BFILE__, __LINE__); + } + tgt_ms := 0; + if (match(dl_block.data.mac_hdr.mac_hdr.usf, g_ms[0].ul_tbf.usf[7])) { + usf_ms := 0; + ms_gprs_usf_count[usf_ms] := ms_gprs_usf_count[usf_ms] + 1; + } else if (match(dl_block.data.mac_hdr.mac_hdr.usf, g_ms[1].ul_tbf.usf[7])) { + usf_ms := 1; + ms_gprs_usf_count[usf_ms] := ms_gprs_usf_count[usf_ms] + 1; + } + } + + /* Keep Ack/Nack description updated */ + f_dltbf_ack_block(g_ms[tgt_ms].dl_tbf, dl_block); + + /* TDMA frame number on which we are supposed to send the ACK */ + if (f_dl_block_rrbp_valid(dl_block)) { + ack_fn := f_dl_block_ack_fn(dl_block, dl_fn); + f_ms_tx_ul_block(g_ms[tgt_ms], f_dltbf_ts_RLCMAC_DL_ACK_NACK(g_ms[tgt_ms].dl_tbf, ischosen(dl_block.data_egprs)), ack_fn); + if (tx_data_remain != 0) { + /* Submit more data from time to time to keep the TBF ongoing */ + BSSGP[0].send(ts_BSSGP_DL_UD(g_ms[0].tlli, data)); + BSSGP[0].send(ts_BSSGP_DL_UD(g_ms[1].tlli, data)); + tx_data_remain := tx_data_remain - 1; + } + } else if (tx_data_remain != 0) { + /* keep sending UL blocks when requested by USF to avoid + * UL TBF timeout and hence stop receival of USFs */ + if (usf_ms != -1) { + f_ms_tx_ul_data_block(g_ms[usf_ms], f_rnd_octstring(10), cv := 15); + } + } + } + + log("results: ms_gprs_usf_count=", ms_gprs_usf_count, " / ms_egprs_usf_count=", ms_egprs_usf_count); + /* He we check that DL blocks scheduled at GPRS can still request UL + * blocks for EGPRS MS, and the other way around. Furthermore, the 2nd + * condition also ensures the downgrade to <=MCS4 condition is tested + * above */ + if (ms_gprs_usf_count[1] == 0 or ms_egprs_usf_count[0] == 0) { + setverdict(fail, "USF exchange thresholds not met!"); + f_shutdown(__BFILE__, __LINE__); + } + /* Here check for some level of fairness between them (at least ~40%): */ + var integer gprs_usf_cnt := ms_gprs_usf_count[0] + ms_egprs_usf_count[0]; + var integer egprs_usf_cnt := ms_gprs_usf_count[1] + ms_egprs_usf_count[1]; + var integer total_usf_cnt := gprs_usf_cnt + egprs_usf_cnt; + if (gprs_usf_cnt < total_usf_cnt * 4 / 10) { + setverdict(fail, "USF GPRS-only MS ", gprs_usf_cnt, " < ", total_usf_cnt * 4 / 10); + f_shutdown(__BFILE__, __LINE__); + } + if (egprs_usf_cnt < total_usf_cnt * 4 / 10) { + setverdict(fail, "USF EGPRS MS ", egprs_usf_cnt, " < ", total_usf_cnt * 4 / 10); + f_shutdown(__BFILE__, __LINE__); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + + +private function f_TC_paging_cs_multi_ms(template (value) TsTrxBtsNum nr, + boolean exp_imsi, boolean exp_tmsi) +runs on RAW_PCU_Test_CT { + var bitstring mask := f_pad_bit(''B, lengthof(g_ms), '0'B); + var integer pending := lengthof(g_ms); + var RlcmacDlBlock dl_block; + var boolean f1, f2; + + while (pending > 0) { + var uint32_t poll_fn; + + /* Obtain a Downlink block and make sure it is a paging request */ + f_rx_rlcmac_dl_block(dl_block, poll_fn, nr := nr); + if (not match(dl_block, tr_RLCMAC_PACKET_PAG_REQ)) { + setverdict(fail, "Rx unexpected DL block: ", dl_block); + break; + } + + /* This should not happen in general, but who knows... */ + var PacketPagingReq req := dl_block.ctrl.payload.u.paging; + if (not ispresent(req.repeated_pageinfo)) { + setverdict(fail, "Repeated Page Info IE is absent?!?"); + break; + } + + /* A single message may contain several MIs depending on their type */ + for (var integer i := 0; i < lengthof(g_ms); i := i + 1) { + f1 := exp_imsi and f_pkt_paging_match_imsi(req, g_ms[i].imsi, + ps_domain := false); + f2 := exp_tmsi and f_pkt_paging_match_tmsi(req, oct2int(g_ms[i].tlli), + ps_domain := false); + if (not f1 and not f2) + { continue; } + + /* Detect duplicate MIs */ + if (mask[i] == '1'B) { + setverdict(fail, "MS is paged twice: ", g_ms[i].imsi); + continue; + } + + mask[i] := '1'B; + } + + pending := pending - lengthof(req.repeated_pageinfo); + } + + for (var integer i := 0; i < lengthof(mask); i := i + 1) { + if (mask[i] != '1'B) { + setverdict(fail, "MS was not paged at all: ", g_ms[i].imsi); + log("===== mask := ", mask); + } + } + + /* All messages must have been received by now, expect a dummy block */ + f_rx_rlcmac_dl_block_exp_dummy(dl_block, nr := nr); +} + +private function f_TC_paging_cs_multi_ms_init(BIT8 pdch_mask) +runs on RAW_PCU_Test_CT { + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default); + const BssgpBvci bvci := mp_gb_cfg.bvc[0].bvci; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + + /* Explicitly set the given PDCH slot-mask to all transceivers */ + f_PCUIF_PDCHMask_set(info_ind, pdch_mask); + + /* Allocate 56 GprsMS instances (maximum for 8 PDCH slots) */ + f_init_gprs_ms(7 * 8); + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_multi_ms_bssgp_register(); + + /* Establish an Uplink TBF for each GprsMS instance */ + f_multi_ms_establish_tbf(do_activate := true); +} + +testcase TC_paging_cs_multi_ms_imsi() runs on RAW_PCU_Test_CT { + const BssgpBvci bvci := mp_gb_cfg.bvc[0].bvci; + + /* Common part: send INFO.ind, establish TBFs... */ + f_TC_paging_cs_multi_ms_init(pdch_mask := '00000001'B); + + /* Enqueue multiple CS PAGING requests at a time (IMSI only) */ + for (var integer i := 0; i < lengthof(g_ms); i := i + 1) { + BSSGP[0].send(ts_BSSGP_CS_PAGING_IMSI(bvci, g_ms[i].imsi)); + } + + /* FIXME: work around a race condition between PCUIF and BSSGP */ + f_sleep(0.2); /* i.e. give the IUT some time to process everything */ + + /* Check what the IUT sends on PACCH, all GprsMS instances must be paged. + * The IUT is expected to page on all PDCH slots of all transceivers. */ + for (var integer trx_nr := 0; trx_nr < 8; trx_nr := trx_nr + 1) { + var template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum(7, trx_nr); + f_TC_paging_cs_multi_ms(nr, exp_imsi := true, exp_tmsi := false); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +testcase TC_paging_cs_multi_ms_tmsi() runs on RAW_PCU_Test_CT { + const BssgpBvci bvci := mp_gb_cfg.bvc[0].bvci; + + /* Common part: send INFO.ind, establish TBFs... */ + f_TC_paging_cs_multi_ms_init(pdch_mask := '00000001'B); + + /* Enqueue multiple CS PAGING requests at a time (P-TMSI only) */ + for (var integer i := 0; i < lengthof(g_ms); i := i + 1) { + var GsmTmsi tmsi := oct2int(g_ms[i].tlli); /* P-TMSI == TLLI */ + BSSGP[0].send(ts_BSSGP_CS_PAGING_PTMSI(bvci, g_ms[i].imsi, tmsi)); + } + + /* FIXME: work around a race condition between PCUIF and BSSGP */ + f_sleep(0.2); /* i.e. give the IUT some time to process everything */ + + /* Check what the IUT sends on PACCH, all GprsMS instances must be paged. + * The IUT is expected to page on all PDCH slots of all transceivers. */ + for (var integer trx_nr := 0; trx_nr < 8; trx_nr := trx_nr + 1) { + var template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum(7, trx_nr); + f_TC_paging_cs_multi_ms(nr, exp_imsi := false, exp_tmsi := true); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +testcase TC_paging_cs_multi_ms_imsi_tmsi() runs on RAW_PCU_Test_CT { + const BssgpBvci bvci := mp_gb_cfg.bvc[0].bvci; + + /* Common part: send INFO.ind, establish TBFs... */ + f_TC_paging_cs_multi_ms_init(pdch_mask := '00000001'B); + + /* Enqueue multiple CS PAGING requests at a time (IMSI & P-TMSI) */ + for (var integer i := 0; i < lengthof(g_ms); i := i + 1) { + var GsmTmsi tmsi := oct2int(g_ms[i].tlli); /* P-TMSI == TLLI */ + if (i mod 3 == 0) { /* One PDU fits: 1 IMSI and 2 P-TMSI MIs */ + BSSGP[0].send(ts_BSSGP_CS_PAGING_PTMSI(bvci, g_ms[i].imsi, tmsi)); + } else { + BSSGP[0].send(ts_BSSGP_CS_PAGING_IMSI(bvci, g_ms[i].imsi)); + } + } + + /* FIXME: work around a race condition between PCUIF and BSSGP */ + f_sleep(0.2); /* i.e. give the IUT some time to process everything */ + + /* Check what the IUT sends on PACCH, all GprsMS instances must be paged. + * The IUT is expected to page on all PDCH slots of all transceivers. */ + for (var integer trx_nr := 0; trx_nr < 8; trx_nr := trx_nr + 1) { + var template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum(7, trx_nr); + f_TC_paging_cs_multi_ms(nr, exp_imsi := true, exp_tmsi := true); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +private function f_skip_dummy(integer max_num_iter, out uint32_t sched_fn) +runs on RAW_PCU_Test_CT return RlcmacDlBlock { + var RlcmacDlBlock dl_block; + var integer i := 0; + while (true) { + f_rx_rlcmac_dl_block(dl_block, sched_fn); + if (not match(dl_block, tr_RLCMAC_DL_DUMMY_CTRL())) { + break; + } + if (max_num_iter > 0 and i > max_num_iter) { + setverdict(fail, "Rx unexpected DL block: ", dl_block); + f_shutdown(__BFILE__, __LINE__); + } + i := i + 1; + } + return dl_block; +} + +private const GsmMcc c_BssgpCellMcc := '623'H; /* MCC: Central African Republic */ +private const GsmMnc c_BssgpCellMnc := '03'H; /* MNC: Celca (Socatel) */ +private template (value) BssgpCellId ts_BssgpCellIdDstAddr_default := { + ra_id := { + lai := { + mcc_mnc := f_build_BcdMccMnc(c_BssgpCellMcc, c_BssgpCellMnc), + lac := 423 + }, + rac := 2 + }, + cell_id := 5 +} + +private function f_outbound_nacc_rim_tx_resp(PCUIF_info_ind info_ind) +runs on RAW_PCU_Test_CT { + /* Source Cell Identifier IE is generated by osmo-pcu based on the INFO.ind */ + var BcdMccMnc src_mcc_mnc := f_build_BcdMccMnc_int(info_ind.mcc, info_ind.mnc, info_ind.mnc_3_digits == 1); + var BssgpCellId src := valueof(ts_BssgpCellId(ts_RAI(ts_LAI(src_mcc_mnc, info_ind.lac), info_ind.rac), + info_ind.cell_id)); + /* Destination Cell Identifier IE is resolved by the testsuite itself (emulating BSC) */ + var BssgpCellId dst := valueof(ts_BssgpCellIdDstAddr_default); + var RIM_Routing_Address src_addr := valueof(t_RIM_Routing_Address_cid(src)); + var RIM_Routing_Address dst_addr := valueof(t_RIM_Routing_Address_cid(dst)); + var template (value) RAN_Information_RIM_Container res_cont := + ts_RAN_Information_RIM_Container(ts_RIM_Application_Identity(RIM_APP_ID_NACC), + ts_RIM_Sequence_Number(2), + ts_RIM_PDU_Indications(false, RIM_PDU_TYPE_SING_REP), + ts_RIM_Protocol_Version_Number(1), + tsu_ApplContainer_or_ApplErrContainer_NACC(tsu_ApplContainer_NACC(dst, false, 3, si_default)), + omit); + RIM.send(ts_PDU_BSSGP_RAN_INFORMATION(ts_RIM_Routing_Information(RIM_ADDR_GERAN_CELL_ID, src_addr), + ts_RIM_Routing_Information(RIM_ADDR_GERAN_CELL_ID, dst_addr), + res_cont)); +} + +altstep as_outbound_nacc_rim_resolve(PCUIF_info_ind info_ind, boolean do_answer := true, boolean do_repeat := false) +runs on RAW_PCU_Test_CT { + /* Source Cell Identifier IE is generated by osmo-pcu based on the INFO.ind */ + var BcdMccMnc src_mcc_mnc := f_build_BcdMccMnc_int(info_ind.mcc, info_ind.mnc, info_ind.mnc_3_digits == 1); + var BssgpCellId src := valueof(ts_BssgpCellId(ts_RAI(ts_LAI(src_mcc_mnc, info_ind.lac), info_ind.rac), + info_ind.cell_id)); + /* Destination Cell Identifier IE is resolved by the testsuite itself (emulating BSC) */ + var BssgpCellId dst := valueof(ts_BssgpCellIdDstAddr_default); + var RIM_Routing_Address src_addr := valueof(t_RIM_Routing_Address_cid(src)); + var RIM_Routing_Address dst_addr := valueof(t_RIM_Routing_Address_cid(dst)); + [] RIM.receive(tr_RAN_INFORMATION_REQUEST(tr_RIM_Routing_Information(RIM_ADDR_GERAN_CELL_ID, dst_addr), + tr_RIM_Routing_Information(RIM_ADDR_GERAN_CELL_ID, src_addr), + tr_RAN_Information_Request_RIM_Container)) { + if (do_answer) { + f_outbound_nacc_rim_tx_resp(info_ind); + } + if (do_repeat) { repeat; } } - [] L1.receive { repeat }; +} + +private function f_ctrl_rx_nacc_rac_ci_req(out CtrlMessage ctrl_req, + PCUIF_info_ind info_ind, + GsmArfcn req_arfcn, + uint6_t req_bsic) +runs on RAW_PCU_Test_CT { + var charstring ctrl_var := "neighbor_resolve_cgi_ps_from_lac_ci." & + int2str(info_ind.lac) & "." & + int2str(info_ind.cell_id) & "." & + int2str(req_arfcn) & "." & + int2str(req_bsic); + f_ipa_ctrl_wait_link_up(); + IPA_CTRL.receive(tr_CtrlMsgGet(?, ctrl_var)) -> value ctrl_req; +} + +private function f_ctrl_tx_nacc_rac_ci_rsp(in CtrlMessage ctrl_req) +runs on RAW_PCU_Test_CT { + var BssgpCellId addr := valueof(ts_BssgpCellIdDstAddr_default); + IPA_CTRL.send(ts_CtrlMsgGetRepl(ctrl_req.cmd.id, + ctrl_req.cmd.variable, + hex2str(c_BssgpCellMcc) & "-" & + hex2str(c_BssgpCellMnc) & "-" & + int2str(addr.ra_id.lai.lac) & "-" & + int2str(addr.ra_id.rac) & "-" & + int2str(addr.cell_id))); +} + +private function f_pcuif_rx_nacc_rac_ci_req(out PCUIF_Message addr_req, + PCUIF_info_ind info_ind, + GsmArfcn req_arfcn, + uint6_t req_bsic) +runs on RAW_PCU_Test_CT { + BTS.receive(tr_PCUIF_NEIGH_ADDR_REQ(0, info_ind.lac, info_ind.cell_id, + req_arfcn, req_bsic)) -> value addr_req; +} + +private function f_pcuif_tx_nacc_rac_ci_rsp(in PCUIF_Message addr_req) +runs on RAW_PCU_Test_CT { + var BssgpCellId addr := valueof(ts_BssgpCellIdDstAddr_default); + BTS.send(ts_PCUIF_NEIGH_ADDR_CNF(0, addr_req.u.container.u.neigh_addr_req, 0, + str2int(hex2str(c_BssgpCellMcc)), + str2int(hex2str(c_BssgpCellMnc)), + lengthof(c_BssgpCellMnc) - 2, + addr.ra_id.lai.lac, + addr.ra_id.rac, + addr.cell_id)); +} + +private function f_handle_nacc_rac_ci_query(PCUIF_info_ind info_ind, GsmArfcn req_arfcn, uint6_t req_bsic, + boolean answer := true, boolean use_old_ctrl_iface := false) +runs on RAW_PCU_Test_CT { + if (use_old_ctrl_iface == true) { + var CtrlMessage ctrl_req; + f_ctrl_rx_nacc_rac_ci_req(ctrl_req, info_ind, req_arfcn, req_bsic); + if (answer) { + f_ctrl_tx_nacc_rac_ci_rsp(ctrl_req); + } + } else { + var PCUIF_Message pcuif_req; + f_pcuif_rx_nacc_rac_ci_req(pcuif_req, info_ind, req_arfcn, req_bsic); + if (answer) { + f_pcuif_tx_nacc_rac_ci_rsp(pcuif_req); + } + } +} + +private function f_outbound_nacc_success_no_si(inout GprsMS ms, PCUIF_info_ind info_ind, + boolean exp_rac_ci_query := true, boolean exp_si_query := true, + boolean skip_final_ctrl_ack := false, + boolean use_old_ctrl_iface := false, + template (value) RlcmacUlCtrlMsg cell_chg_notif) +runs on RAW_PCU_Test_CT { + var template RlcmacDlCtrlMsg cell_chg_cont; + var RlcmacDlBlock dl_block; + var uint32_t sched_fn; + + /* Start NACC from MS side */ + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* Obtain a Downlink block and make sure it is a PacketCellChangeContine. We also make sure that this + * PacketCellChangeContine message does not contain any ARFCN/BSIC. */ + f_rx_rlcmac_dl_block(dl_block, sched_fn); + cell_chg_cont := tr_RlcMacDlCtrl_PKT_CELL_CHG_CONTINUE + cell_chg_cont.u.cell_chg_continue.arfcn_bsic_presence := '0'B + if (not match(dl_block, tr_RLCMAC_DL_CTRL(?, cell_chg_cont))) { + setverdict(fail, "Rx unexpected DL block: ", dl_block); + f_shutdown(__BFILE__, __LINE__); + } + + /* PKT CELL CHG CONTINUE ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + if (not skip_final_ctrl_ack and dl_block.ctrl.mac_hdr.rrbp_valid) { + sched_fn := f_rrbp_ack_fn(sched_fn, dl_block.ctrl.mac_hdr.rrbp); + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + } +} + +/* Start NACC from MS side, propose an UTRAN cell */ +private function f_outbound_nacc_success_utran(inout GprsMS ms, PCUIF_info_ind info_ind, + boolean exp_rac_ci_query := true, boolean exp_si_query := true, + boolean skip_final_ctrl_ack := false, + boolean use_old_ctrl_iface := false) +runs on RAW_PCU_Test_CT { + var template (value) RlcmacUlCtrlMsg cell_chg_notif; + var uint14_t req_uarfcn := 1234; + var uint10_t req_scrambling_code := 456; + + /* Start NACC from MS side */ + cell_chg_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF_UTRAN(ms.ul_tbf.tfi, req_uarfcn, req_scrambling_code); + f_outbound_nacc_success_no_si(ms, info_ind, exp_rac_ci_query, exp_si_query, skip_final_ctrl_ack, use_old_ctrl_iface, cell_chg_notif); +} + +/* Start NACC from MS side, propose an E-UTRAN cell */ +private function f_outbound_nacc_success_eutran(inout GprsMS ms, PCUIF_info_ind info_ind, + boolean exp_rac_ci_query := true, boolean exp_si_query := true, + boolean skip_final_ctrl_ack := false, + boolean use_old_ctrl_iface := false) +runs on RAW_PCU_Test_CT { + var template (value) RlcmacUlCtrlMsg cell_chg_notif; + var uint16_t req_earfcn := 1234; + var uint9_t phys_layer_cell_id := 456; + + /* Start NACC from MS side */ + cell_chg_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF_EUTRAN(ms.ul_tbf.tfi, req_earfcn, phys_layer_cell_id); + f_outbound_nacc_success_no_si(ms, info_ind, exp_rac_ci_query, exp_si_query, skip_final_ctrl_ack, use_old_ctrl_iface, cell_chg_notif); +} + +/* Start NACC from MS side, propose a GERAN cell */ +private function f_outbound_nacc_success_geran(inout GprsMS ms, PCUIF_info_ind info_ind, + boolean exp_rac_ci_query := true, boolean exp_si_query := true, + boolean skip_final_ctrl_ack := false, + boolean use_old_ctrl_iface := false) +runs on RAW_PCU_Test_CT { + var template (value) RlcmacUlCtrlMsg cell_chg_notif; + var template RlcmacDlCtrlMsg cell_chg_cont; + var RlcmacDlBlock dl_block; + var uint32_t sched_fn; + var GsmArfcn req_arfcn := 862; + var uint6_t req_bsic := 43; + + /* Start NACC from MS side */ + cell_chg_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF(ms.ul_tbf.tfi, req_arfcn, req_bsic); + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + + if (exp_rac_ci_query == true) { + /* osmo-pcu should now ask for resolution: */ + f_handle_nacc_rac_ci_query(info_ind, req_arfcn, req_bsic, true, use_old_ctrl_iface); + } + + if (exp_si_query == true) { + /* RIM procedure: */ + as_outbound_nacc_rim_resolve(info_ind); + } + + /* Announce SI back to MS, continue NACC procedure */ + f_ms_handle_pkt_neighbor_cell_data(ms, si_default); + + /* Obtain a Downlink block and make sure it is a PacketCellChangeContinue, also verify that + * the PacketCellChangeContinue message contains the ARFCN and BSIC which was proposed in + * the PacketCellChangeNotification before. */ + f_rx_rlcmac_dl_block(dl_block, sched_fn); + cell_chg_cont := tr_RlcMacDlCtrl_PKT_CELL_CHG_CONTINUE + cell_chg_cont.u.cell_chg_continue.arfcn_bsic_presence := '1'B + cell_chg_cont.u.cell_chg_continue.arfcn := req_arfcn; + cell_chg_cont.u.cell_chg_continue.bsic := req_bsic; + if (not match(dl_block, tr_RLCMAC_DL_CTRL(?, cell_chg_cont))) { + setverdict(fail, "Rx unexpected DL block: ", dl_block); + f_shutdown(__BFILE__, __LINE__); + } + /* PKT CELL CHG CONTINUE ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + if (not skip_final_ctrl_ack and dl_block.ctrl.mac_hdr.rrbp_valid) { + sched_fn := f_rrbp_ack_fn(sched_fn, dl_block.ctrl.mac_hdr.rrbp); + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + } +} + +type enumerated f_TC_nacc_outbound_success_ran_type { + NACC_RAN_GERAN, + NACC_RAN_UTRAN, + NACC_RAN_EUTRAN +} + +/* Verify PCU handles outbound Network Assisted Cell Change Cell Change (NACC, TS 44.060 sec 8.8). */ +function f_TC_nacc_outbound_success(f_TC_nacc_outbound_success_ran_type ran_type) runs on RAW_PCU_Test_CT { + var PollFnCtx pollctx; + var GprsMS ms; + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default); + var boolean use_old_ctrl_iface := mp_ctrl_neigh_ip != ""; + + if (use_old_ctrl_iface) { + /* Initialize osmo-bsc emulation neighbor resolution CTRL port */ + f_ipa_ctrl_start_server(mp_ctrl_neigh_ip, mp_ctrl_neigh_port); + } + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Make sure we are not affected by full cache from previous tests */ + f_pcuvty_flush_neigh_caches(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Send PACKET RESOURCE REQUEST */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap_gprs_def)); + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), pollctx.fn, nr := pollctx.tstrxbts); + + /* Start NACC from MS side */ + if (ran_type == NACC_RAN_GERAN) { + f_outbound_nacc_success_geran(ms, info_ind, use_old_ctrl_iface := use_old_ctrl_iface); + } else if (ran_type == NACC_RAN_UTRAN) { + f_outbound_nacc_success_utran(ms, info_ind, use_old_ctrl_iface := use_old_ctrl_iface); + } else if (ran_type == NACC_RAN_EUTRAN) { + f_outbound_nacc_success_eutran(ms, info_ind, use_old_ctrl_iface := use_old_ctrl_iface); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +testcase TC_nacc_outbound_success() runs on RAW_PCU_Test_CT { + f_TC_nacc_outbound_success(NACC_RAN_GERAN); +} + +testcase TC_nacc_outbound_success_utran() runs on RAW_PCU_Test_CT { + f_TC_nacc_outbound_success(NACC_RAN_UTRAN); +} + +testcase TC_nacc_outbound_success_eutran() runs on RAW_PCU_Test_CT { + f_TC_nacc_outbound_success(NACC_RAN_EUTRAN); +} + +/* Verify Pkt Cell Change Continue is retransmitted if not CTRL ACKed */ +testcase TC_nacc_outbound_success_no_ctrl_ack() runs on RAW_PCU_Test_CT { + var PollFnCtx pollctx; + var GprsMS ms; + var RlcmacDlBlock dl_block; + var uint32_t sched_fn; + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default); + var boolean use_old_ctrl_iface := mp_ctrl_neigh_ip != ""; + + if (use_old_ctrl_iface) { + /* Initialize osmo-bsc emulation neighbor resolution CTRL port */ + f_ipa_ctrl_start_server(mp_ctrl_neigh_ip, mp_ctrl_neigh_port); + } + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Make sure we are not affected by full cache from previous tests */ + f_pcuvty_flush_neigh_caches(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Send PACKET RESOURCE REQUEST */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap_gprs_def)); + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), pollctx.fn, nr := pollctx.tstrxbts); + + /* Start NACC from MS side, avoid sending final CTRL ACK */ + f_outbound_nacc_success_geran(ms, info_ind, skip_final_ctrl_ack := true, + use_old_ctrl_iface := use_old_ctrl_iface); + + /* Wait until we receive something non-dummy */ + dl_block := f_skip_dummy(0, sched_fn); + /* Make sure it is a Pkt Cell Chg Continue (retransmitted)*/ + if (not match(dl_block, tr_RLCMAC_DL_CTRL(?, tr_RlcMacDlCtrl_PKT_CELL_CHG_CONTINUE))) { + setverdict(fail, "Rx unexpected DL block: ", dl_block); + } + /* PKT CELL CHG CONTINUE ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + if (dl_block.ctrl.mac_hdr.rrbp_valid) { + sched_fn := f_rrbp_ack_fn(sched_fn, dl_block.ctrl.mac_hdr.rrbp); + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Verify PCU handles outbound Network Assisted Cell Change Cell Change (NACC, TS 44.060 sec 8.8) twice, the second time using the caches */ +testcase TC_nacc_outbound_success_twice() runs on RAW_PCU_Test_CT { + var PollFnCtx pollctx; + var GprsMS ms; + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default); + var template (value) RlcmacUlCtrlMsg cell_chg_notif; + var boolean use_old_ctrl_iface := mp_ctrl_neigh_ip != ""; + + if (use_old_ctrl_iface) { + /* Initialize osmo-bsc emulation neighbor resolution CTRL port */ + f_ipa_ctrl_start_server(mp_ctrl_neigh_ip, mp_ctrl_neigh_port); + } + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Make sure we are not affected by full cache from previous tests */ + f_pcuvty_flush_neigh_caches(); + /* Set timeout values for caches so that entries will be in cache during second try */ + f_pcuvty_set_neigh_caches(10, 10); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Send PACKET RESOURCE REQUEST */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap_gprs_def)); + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), pollctx.fn, nr := pollctx.tstrxbts); + + /* Start NACC from MS side */ + f_outbound_nacc_success_geran(ms, info_ind, use_old_ctrl_iface := use_old_ctrl_iface); + + /* First NACC procedure is done, let's try to start a new one now that previous queries are cached: */ + f_outbound_nacc_success_geran(ms, info_ind, false, false, use_old_ctrl_iface := use_old_ctrl_iface); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Verify PCU handles outbound Network Assisted Cell Change Cell Change (NACC, + * TS 44.060 sec 8.8) twice, the second time after caches timed out + */ +testcase TC_nacc_outbound_success_twice_nocache() runs on RAW_PCU_Test_CT { + var PollFnCtx pollctx; + var GprsMS ms; + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default); + var template (value) RlcmacUlCtrlMsg cell_chg_notif; + var boolean use_old_ctrl_iface := mp_ctrl_neigh_ip != ""; + + if (use_old_ctrl_iface) { + /* Initialize osmo-bsc emulation neighbor resolution CTRL port */ + f_ipa_ctrl_start_server(mp_ctrl_neigh_ip, mp_ctrl_neigh_port); + } + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Make sure we are not affected by full cache from previous tests */ + f_pcuvty_flush_neigh_caches(); + /* Set timeout values for caches so that entries will be erased before the second try */ + f_pcuvty_set_neigh_caches(1, 1); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Send PACKET RESOURCE REQUEST */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap_gprs_def)); + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), pollctx.fn, nr := pollctx.tstrxbts); + + /* Start NACC from MS side */ + f_outbound_nacc_success_geran(ms, info_ind, use_old_ctrl_iface := use_old_ctrl_iface); + + /* CTRL client should have disconnected from us */ + f_ipa_ctrl_wait_link_down(); + /* wait for cache entries to time out */ + f_sleep(2.0); + /* First NACC procedure is done, let's try to start a new one now that previous queries have timed out: */ + f_outbound_nacc_success_geran(ms, info_ind, use_old_ctrl_iface := use_old_ctrl_iface); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Verify PCU transmits Pkt Cell Change Continue if RAC+CI resolution fails during outbound NACC procedure */ +testcase TC_nacc_outbound_rac_ci_resolve_conn_refused() runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var PollFnCtx pollctx; + var uint32_t sched_fn; + var GprsMS ms; + var template (value) RlcmacUlCtrlMsg cell_chg_notif; + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default); + var GsmArfcn req_arfcn := 862; + var uint6_t req_bsic := 43; + + /* In here we explicitly avoid starting osmo-bsc emulation neighbor + * resolution CTRL port, to trigger Conn Refused by socket: + * f_ipa_ctrl_start_server(mp_ctrl_neigh_ip, mp_ctrl_neigh_port); + */ + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Make sure we are not affected by full cache from previous tests */ + f_pcuvty_flush_neigh_caches(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Send PACKET RESOURCE REQUEST */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap_gprs_def)); + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), pollctx.fn, nr := pollctx.tstrxbts); + + /* Start NACC from MS side */ + cell_chg_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF(ms.ul_tbf.tfi, req_arfcn, req_bsic); + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* Wait until we receive something non-dummy */ + dl_block := f_skip_dummy(0, sched_fn); + /* Make sure it is a Pkt Cell Chg Continue */ + if (not match(dl_block, tr_RLCMAC_DL_CTRL(?, tr_RlcMacDlCtrl_PKT_CELL_CHG_CONTINUE))) { + setverdict(fail, "Rx unexpected DL block: ", dl_block); + } + /* PKT CELL CHG CONTINUE ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + if (dl_block.ctrl.mac_hdr.rrbp_valid) { + sched_fn := f_rrbp_ack_fn(sched_fn, dl_block.ctrl.mac_hdr.rrbp); + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Verify PCU transmits Pkt Cell Change Continue if RAC+CI resolution fails during outbound NACC procedure */ +testcase TC_nacc_outbound_rac_ci_resolve_timeout() runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var PollFnCtx pollctx; + var uint32_t sched_fn; + var GprsMS ms; + var template (value) RlcmacUlCtrlMsg cell_chg_notif; + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default); + var GsmArfcn req_arfcn := 862; + var uint6_t req_bsic := 43; + var boolean use_old_ctrl_iface := mp_ctrl_neigh_ip != ""; + + if (use_old_ctrl_iface) { + /* Initialize osmo-bsc emulation neighbor resolution CTRL port */ + f_ipa_ctrl_start_server(mp_ctrl_neigh_ip, mp_ctrl_neigh_port); + } + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Make sure we are not affected by full cache from previous tests */ + f_pcuvty_flush_neigh_caches(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Send PACKET RESOURCE REQUEST */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap_gprs_def)); + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), pollctx.fn, nr := pollctx.tstrxbts); + + /* Start NACC from MS side */ + cell_chg_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF(ms.ul_tbf.tfi, req_arfcn, req_bsic); + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* osmo-pcu should now ask for resolution: */ + /* we receive RAC+CI resolution request, but we never answer to it, timeout should occur */ + f_handle_nacc_rac_ci_query(info_ind, req_arfcn, req_bsic, false, use_old_ctrl_iface); + + /* Wait until we receive something non-dummy */ + dl_block := f_skip_dummy(0, sched_fn); + /* Make sure it is a Pkt Cell Chg Continue */ + if (not match(dl_block, tr_RLCMAC_DL_CTRL(?, tr_RlcMacDlCtrl_PKT_CELL_CHG_CONTINUE))) { + setverdict(fail, "Rx unexpected DL block: ", dl_block); + } + /* PKT CELL CHG CONTINUE ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + if (dl_block.ctrl.mac_hdr.rrbp_valid) { + sched_fn := f_rrbp_ack_fn(sched_fn, dl_block.ctrl.mac_hdr.rrbp); + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Verify PCU transmits Pkt Cell Change Continue if RAC+CI resolution fails during outbound NACC procedure */ +testcase TC_nacc_outbound_rac_ci_resolve_fail_parse_response() runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var PollFnCtx pollctx; + var uint32_t sched_fn; + var GprsMS ms; + var template (value) RlcmacUlCtrlMsg cell_chg_notif; + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default); + var GsmArfcn req_arfcn := 862; + var uint6_t req_bsic := 43; + + /* Initialize osmo-bsc emulation neighbor resolution CTRL port */ + f_ipa_ctrl_start_server(mp_ctrl_neigh_ip, mp_ctrl_neigh_port); + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Make sure we are not affected by full cache from previous tests */ + f_pcuvty_flush_neigh_caches(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Send PACKET RESOURCE REQUEST */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap_gprs_def)); + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), pollctx.fn, nr := pollctx.tstrxbts); + + /* Start NACC from MS side */ + cell_chg_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF(ms.ul_tbf.tfi, req_arfcn, req_bsic); + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* osmo-pcu should now ask for resolution: */ + f_ipa_ctrl_wait_link_up(); + var charstring ctrl_var := "neighbor_resolve_cgi_ps_from_lac_ci." & + int2str(info_ind.lac) & "." & + int2str(info_ind.cell_id) & "." & + int2str(req_arfcn) & "." & + int2str(req_bsic); + /* we receive RAC+CI resolution request and we send incorrectly formated response */ + f_ctrl_exp_get(IPA_CTRL, ctrl_var, "foobar-error"); + + /* Wait until we receive something non-dummy */ + dl_block := f_skip_dummy(0, sched_fn); + /* Make sure it is a Pkt Cell Chg Continue */ + if (not match(dl_block, tr_RLCMAC_DL_CTRL(?, tr_RlcMacDlCtrl_PKT_CELL_CHG_CONTINUE))) { + setverdict(fail, "Rx unexpected DL block: ", dl_block); + } + /* PKT CELL CHG CONTINUE ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + if (dl_block.ctrl.mac_hdr.rrbp_valid) { + sched_fn := f_rrbp_ack_fn(sched_fn, dl_block.ctrl.mac_hdr.rrbp); + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Verify PCU transmits Pkt Cell Change Continue if SI resolution fails during outbound NACC procedure */ +testcase TC_nacc_outbound_si_resolve_timeout() runs on RAW_PCU_Test_CT { + var RlcmacDlBlock dl_block; + var PollFnCtx pollctx; + var uint32_t sched_fn; + var GprsMS ms; + var template (value) RlcmacUlCtrlMsg cell_chg_notif; + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default); + var GsmArfcn req_arfcn := 862; + var uint6_t req_bsic := 43; + var boolean use_old_ctrl_iface := mp_ctrl_neigh_ip != ""; + + if (use_old_ctrl_iface) { + /* Initialize osmo-bsc emulation neighbor resolution CTRL port */ + f_ipa_ctrl_start_server(mp_ctrl_neigh_ip, mp_ctrl_neigh_port); + } + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Make sure we are not affected by full cache from previous tests */ + f_pcuvty_flush_neigh_caches(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Send PACKET RESOURCE REQUEST */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap_gprs_def)); + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), pollctx.fn, nr := pollctx.tstrxbts); + + /* Start NACC from MS side */ + cell_chg_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF(ms.ul_tbf.tfi, req_arfcn, req_bsic); + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* osmo-pcu should now ask for resolution: */ + f_handle_nacc_rac_ci_query(info_ind, req_arfcn, req_bsic, true, use_old_ctrl_iface); + + /* RIM procedure: */ + as_outbound_nacc_rim_resolve(info_ind, do_answer := false); + /* We never answer the RIM procude -> PCU timeouts and should send Pkt Cell Chg continue */ + + /* Wait until we receive something non-dummy */ + dl_block := f_skip_dummy(0, sched_fn); + /* Make sure it is a Pkt Cell Chg Continue */ + if (not match(dl_block, tr_RLCMAC_DL_CTRL(?, tr_RlcMacDlCtrl_PKT_CELL_CHG_CONTINUE))) { + setverdict(fail, "Rx unexpected DL block: ", dl_block); + } + /* PKT CELL CHG CONTINUE ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + if (dl_block.ctrl.mac_hdr.rrbp_valid) { + sched_fn := f_rrbp_ack_fn(sched_fn, dl_block.ctrl.mac_hdr.rrbp); + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Test MS sending Pkt Cell Change Notify twice (duplicate msg) while waiting for CTRL resolution */ +testcase TC_nacc_outbound_pkt_cell_chg_notif_dup() runs on RAW_PCU_Test_CT { + var PollFnCtx pollctx; + var GprsMS ms; + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default); + var template (value) RlcmacUlCtrlMsg cell_chg_notif; + var RlcmacDlBlock dl_block; + var uint32_t sched_fn; + var CtrlMessage rx_ctrl; + var charstring ctrl_var; + var PCUIF_Message pcu_msg; + var GsmArfcn req_arfcn := 862; + var uint6_t req_bsic := 43; + var boolean use_old_ctrl_iface := mp_ctrl_neigh_ip != ""; + + if (use_old_ctrl_iface) { + /* Initialize osmo-bsc emulation neighbor resolution CTRL port */ + f_ipa_ctrl_start_server(mp_ctrl_neigh_ip, mp_ctrl_neigh_port); + } + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Make sure we are not affected by full cache from previous tests */ + f_pcuvty_flush_neigh_caches(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Send PACKET RESOURCE REQUEST */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap_gprs_def)); + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), pollctx.fn, nr := pollctx.tstrxbts); + + /* Start NACC from MS side */ + cell_chg_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF(ms.ul_tbf.tfi, req_arfcn, req_bsic); + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* osmo-pcu should now ask for resolution: */ + if (use_old_ctrl_iface) { + f_ctrl_rx_nacc_rac_ci_req(rx_ctrl, info_ind, req_arfcn, req_bsic); + } else { + f_pcuif_rx_nacc_rac_ci_req(pcu_msg, info_ind, req_arfcn, req_bsic); + } + + /* Before receiving CTRL response, MS retransmits Pkt cell Chg Notif */ + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + f_sleep(0.2); /* let some time to avoid race conditons between CTRL and RLCMAC */ + + if (use_old_ctrl_iface) { + f_ctrl_tx_nacc_rac_ci_rsp(rx_ctrl); + } else { + f_pcuif_tx_nacc_rac_ci_rsp(pcu_msg); + } + + timer T := 2.0; + T.start; + alt { + [] as_outbound_nacc_rim_resolve(info_ind, do_repeat := true); + [use_old_ctrl_iface] IPA_CTRL.receive(tr_CtrlMsgGet(?, ctrl_var)) -> value rx_ctrl { + setverdict(fail, "Received unexpected CTRL resolution after duplicate Pkt Cell Change Notification:", rx_ctrl); + f_shutdown(__BFILE__, __LINE__); + } + [not use_old_ctrl_iface] BTS.receive(tr_PCUIF_NEIGH_ADDR_REQ(0, info_ind.lac, info_ind.cell_id, req_arfcn, req_bsic)) -> value pcu_msg { + setverdict(fail, "Received unexpected PCUIF resolution after duplicate Pkt Cell Change Notification:", pcu_msg); + f_shutdown(__BFILE__, __LINE__); + } + [] T.timeout { + setverdict(pass); + } + } + + /* Announce SI back to MS, continue NACC procedure */ + f_ms_handle_pkt_neighbor_cell_data(ms, si_default); + + /* Obtain a Downlink block and make sure it is a Pkt Cell Chg Continue */ + f_rx_rlcmac_dl_block(dl_block, sched_fn); + if (not match(dl_block, tr_RLCMAC_DL_CTRL(?, tr_RlcMacDlCtrl_PKT_CELL_CHG_CONTINUE))) { + setverdict(fail, "Rx unexpected DL block: ", dl_block); + f_shutdown(__BFILE__, __LINE__); + } + /* PKT CELL CHG CONTINUE ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + if (dl_block.ctrl.mac_hdr.rrbp_valid) { + sched_fn := f_rrbp_ack_fn(sched_fn, dl_block.ctrl.mac_hdr.rrbp); + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Test MS sending Pkt Cell Change Notify twice (duplicate msg) while waiting for SI resolution */ +testcase TC_nacc_outbound_pkt_cell_chg_notif_dup2() runs on RAW_PCU_Test_CT { + var PollFnCtx pollctx; + var GprsMS ms; + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default); + var template (value) RlcmacUlCtrlMsg cell_chg_notif; + var RlcmacDlBlock dl_block; + var uint32_t sched_fn; + var CtrlMessage rx_ctrl; + var GsmArfcn req_arfcn := 862; + var uint6_t req_bsic := 43; + var boolean use_old_ctrl_iface := mp_ctrl_neigh_ip != ""; + + if (use_old_ctrl_iface) { + /* Initialize osmo-bsc emulation neighbor resolution CTRL port */ + f_ipa_ctrl_start_server(mp_ctrl_neigh_ip, mp_ctrl_neigh_port); + } + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Make sure we are not affected by full cache from previous tests */ + f_pcuvty_flush_neigh_caches(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Send PACKET RESOURCE REQUEST */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap_gprs_def)); + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), pollctx.fn, nr := pollctx.tstrxbts); + + /* Start NACC from MS side */ + cell_chg_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF(ms.ul_tbf.tfi, req_arfcn, req_bsic); + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* osmo-pcu should now ask for resolution: */ + f_handle_nacc_rac_ci_query(info_ind, req_arfcn, req_bsic, true, use_old_ctrl_iface); + as_outbound_nacc_rim_resolve(info_ind, do_answer := false); + /* Before receiving RIM response, MS retransmits Pkt cell Chg Notif */ + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + f_sleep(0.2); /* let some time to avoid race conditons between CTRL and RLCMAC */ + f_outbound_nacc_rim_tx_resp(info_ind); + timer T := 1.0; + T.start; + alt { + [] RIM.receive { + setverdict(fail, "Received unexpected RIM message"); + f_shutdown(__BFILE__, __LINE__); + } [] T.timeout { - setverdict(fail, "Timeout waiting for IMM ASS") - mtc.stop; + setverdict(pass); } } - T.stop; - return rr.payload.imm_ass; + + /* Announce SI back to MS, continue NACC procedure */ + f_ms_handle_pkt_neighbor_cell_data(ms, si_default); + + /* Obtain a Downlink block and make sure it is a Pkt Cell Chg Continue */ + f_rx_rlcmac_dl_block(dl_block, sched_fn); + if (not match(dl_block, tr_RLCMAC_DL_CTRL(?, tr_RlcMacDlCtrl_PKT_CELL_CHG_CONTINUE))) { + setverdict(fail, "Rx unexpected DL block: ", dl_block); + f_shutdown(__BFILE__, __LINE__); + } + /* PKT CELL CHG CONTINUE ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + if (dl_block.ctrl.mac_hdr.rrbp_valid) { + sched_fn := f_rrbp_ack_fn(sched_fn, dl_block.ctrl.mac_hdr.rrbp); + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + } + + f_shutdown(__BFILE__, __LINE__, final := true); } -/* Establish an UL TBF: Tune to ARFCN, send RACH, receive AGCH, enable TBF Rx */ -function f_establish_dl_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 */ +/* Test MS sending Pkt Cell Change Notification twice (duplicate msg) while sending Pkt Neigh Data Change */ +testcase TC_nacc_outbound_pkt_cell_chg_notif_dup3() runs on RAW_PCU_Test_CT { + var PollFnCtx pollctx; + var GprsMS ms; + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default); + var template (value) RlcmacUlCtrlMsg cell_chg_notif; + var RlcmacDlBlock dl_block; + var uint32_t sched_fn; + var CtrlMessage rx_ctrl; + var GsmArfcn req_arfcn := 862; + var uint6_t req_bsic := 43; + var boolean use_old_ctrl_iface := mp_ctrl_neigh_ip != ""; + + if (use_old_ctrl_iface) { + /* Initialize osmo-bsc emulation neighbor resolution CTRL port */ + f_ipa_ctrl_start_server(mp_ctrl_neigh_ip, mp_ctrl_neigh_port); + } - /* sending a GMM PDU as DL-UNITDATA should trigger Paging + DL TBF Assignment */ - tx_gmm('1'B, '01020304'O, c_LLC_SAPI_LLGMM); + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ - /* Expect an IMM.ASS for PDCH on the AGCH */ - f_wait_tbf_dl(0, g_mmctx.tlli); + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Make sure we are not affected by full cache from previous tests */ + f_pcuvty_flush_neigh_caches(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); - var RLCMAC_ph_data_ind dl; + /* Send PACKET RESOURCE REQUEST */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap_gprs_def)); + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), pollctx.fn, nr := pollctx.tstrxbts); + + /* Start NACC from MS side */ + cell_chg_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF(ms.ul_tbf.tfi, req_arfcn, req_bsic); + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* osmo-pcu should now ask for resolution: */ + f_handle_nacc_rac_ci_query(info_ind, req_arfcn, req_bsic, true, use_old_ctrl_iface); + /* RIM procedure: */ + as_outbound_nacc_rim_resolve(info_ind); + + /* Receive first Pkt Neigh data Change, then trigger a new Pkt Cell Change Notif: */ + f_ms_handle_pkt_neighbor_cell_data(ms, si_default, single_step := true); + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* It should be ignored, let's continue fetching Pkt Neigh Data Change */ + f_ms_handle_pkt_neighbor_cell_data(ms, si_default, f_ms_tx_TsTrxBtsNum(ms), 1, 16); + + /* Obtain a Downlink block and make sure it is a Pkt Cell Chg Continue */ + f_rx_rlcmac_dl_block(dl_block, sched_fn); + if (not match(dl_block, tr_RLCMAC_DL_CTRL(?, tr_RlcMacDlCtrl_PKT_CELL_CHG_CONTINUE))) { + setverdict(fail, "Rx unexpected DL block: ", dl_block); + f_shutdown(__BFILE__, __LINE__); + } + /* PKT CELL CHG CONTINUE ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + if (dl_block.ctrl.mac_hdr.rrbp_valid) { + sched_fn := f_rrbp_ack_fn(sched_fn, dl_block.ctrl.mac_hdr.rrbp); + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Test MS sending Pkt Cell Change Notification twice (duplicate msg) while sending Pkt Cell Change Continue */ +testcase TC_nacc_outbound_pkt_cell_chg_notif_dup4() runs on RAW_PCU_Test_CT { + var PollFnCtx pollctx; + var GprsMS ms; + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default); + var template (value) RlcmacUlCtrlMsg cell_chg_notif; + var RlcmacDlBlock dl_block; + var uint32_t sched_fn; + var CtrlMessage rx_ctrl; + var GsmArfcn req_arfcn := 862; + var uint6_t req_bsic := 43; + var boolean use_old_ctrl_iface := mp_ctrl_neigh_ip != ""; + + if (use_old_ctrl_iface) { + /* Initialize osmo-bsc emulation neighbor resolution CTRL port */ + f_ipa_ctrl_start_server(mp_ctrl_neigh_ip, mp_ctrl_neigh_port); + } + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Make sure we are not affected by full cache from previous tests */ + f_pcuvty_flush_neigh_caches(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Send PACKET RESOURCE REQUEST */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap_gprs_def)); + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), pollctx.fn, nr := pollctx.tstrxbts); + + /* Start NACC from MS side */ + cell_chg_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF(ms.ul_tbf.tfi, req_arfcn, req_bsic); + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* osmo-pcu should now ask for resolution: */ + f_handle_nacc_rac_ci_query(info_ind, req_arfcn, req_bsic, true, use_old_ctrl_iface); + /* RIM procedure: */ + as_outbound_nacc_rim_resolve(info_ind); + + /* Announce SI back to MS, continue NACC procedure */ + f_ms_handle_pkt_neighbor_cell_data(ms, si_default); + + /* trigger a dup Pkt Cell Change Notif, it should be ignored: */ + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* Obtain a Downlink block and make sure it is a Pkt Cell Chg Continue */ + f_rx_rlcmac_dl_block(dl_block, sched_fn); + if (not match(dl_block, tr_RLCMAC_DL_CTRL(?, tr_RlcMacDlCtrl_PKT_CELL_CHG_CONTINUE))) { + setverdict(fail, "Rx unexpected DL block: ", dl_block); + f_shutdown(__BFILE__, __LINE__); + } + /* PKT CELL CHG CONTINUE ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + if (dl_block.ctrl.mac_hdr.rrbp_valid) { + sched_fn := f_rrbp_ack_fn(sched_fn, dl_block.ctrl.mac_hdr.rrbp); + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Test MS sending Pkt Cell Change Notification twice (duplicate msg) while waiting for Pkt Cell Change Continue CTRL ACK */ +testcase TC_nacc_outbound_pkt_cell_chg_notif_dup5() runs on RAW_PCU_Test_CT { + var PollFnCtx pollctx; + var GprsMS ms; + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default); + var template (value) RlcmacUlCtrlMsg cell_chg_notif; + var RlcmacDlBlock dl_block; + var uint32_t sched_fn; + var CtrlMessage rx_ctrl; + var GsmArfcn req_arfcn := 862; + var uint6_t req_bsic := 43; + var boolean use_old_ctrl_iface := mp_ctrl_neigh_ip != ""; + + if (use_old_ctrl_iface) { + /* Initialize osmo-bsc emulation neighbor resolution CTRL port */ + f_ipa_ctrl_start_server(mp_ctrl_neigh_ip, mp_ctrl_neigh_port); + } + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Make sure we are not affected by full cache from previous tests */ + f_pcuvty_flush_neigh_caches(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Send PACKET RESOURCE REQUEST */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap_gprs_def)); + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), pollctx.fn, nr := pollctx.tstrxbts); + + /* Start NACC from MS side */ + cell_chg_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF(ms.ul_tbf.tfi, req_arfcn, req_bsic); + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* osmo-pcu should now ask for resolution: */ + f_handle_nacc_rac_ci_query(info_ind, req_arfcn, req_bsic, true, use_old_ctrl_iface); + /* RIM procedure: */ + as_outbound_nacc_rim_resolve(info_ind); + + /* Announce SI back to MS, continue NACC procedure */ + f_ms_handle_pkt_neighbor_cell_data(ms, si_default); + + /* Obtain a Downlink block and make sure it is a Pkt Cell Chg Continue */ + f_rx_rlcmac_dl_block(dl_block, sched_fn); + if (not match(dl_block, tr_RLCMAC_DL_CTRL(?, tr_RlcMacDlCtrl_PKT_CELL_CHG_CONTINUE))) { + setverdict(fail, "Rx unexpected DL block: ", dl_block); + f_shutdown(__BFILE__, __LINE__); + } + /* trigger a dup Pkt Cell Change Notif, it should be ignored: */ + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* PKT CELL CHG CONTINUE ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + if (dl_block.ctrl.mac_hdr.rrbp_valid) { + sched_fn := f_rrbp_ack_fn(sched_fn, dl_block.ctrl.mac_hdr.rrbp); + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Test MS sending Pkt Cell Change Notify twice (different tgt cell each time) + * while waiting for CTRL resolution */ +testcase TC_nacc_outbound_pkt_cell_chg_notif_twice() runs on RAW_PCU_Test_CT { + var PollFnCtx pollctx; + var GprsMS ms; + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default); + var template (value) RlcmacUlCtrlMsg cell_chg_notif; + var RlcmacDlBlock dl_block; + var uint32_t sched_fn; + var CtrlMessage rx_ctrl; + var charstring ctrl_var; + var PCUIF_Message pcu_msg; + var GsmArfcn req_arfcn := 862; + var uint6_t req_bsic := 43; + var boolean use_old_ctrl_iface := mp_ctrl_neigh_ip != ""; + + if (use_old_ctrl_iface) { + /* Initialize osmo-bsc emulation neighbor resolution CTRL port */ + f_ipa_ctrl_start_server(mp_ctrl_neigh_ip, mp_ctrl_neigh_port); + } + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Make sure we are not affected by full cache from previous tests */ + f_pcuvty_flush_neigh_caches(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Send PACKET RESOURCE REQUEST */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap_gprs_def)); + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), pollctx.fn, nr := pollctx.tstrxbts); + + /* Start NACC from MS side */ + cell_chg_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF(ms.ul_tbf.tfi, req_arfcn, req_bsic); + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* osmo-pcu should now ask for resolution: */ + if (use_old_ctrl_iface) { + f_ctrl_rx_nacc_rac_ci_req(rx_ctrl, info_ind, req_arfcn, req_bsic); + } else { + f_pcuif_rx_nacc_rac_ci_req(pcu_msg, info_ind, req_arfcn, req_bsic); + } + /* Before receiving CTRL response, MS retransmits Pkt cell Chg Notif with different tgt arfcn */ + cell_chg_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF(ms.ul_tbf.tfi, req_arfcn + 1, req_bsic + 1); + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + f_sleep(0.2); /* let some time to avoid race conditons between CTRL and RLCMAC */ + if (use_old_ctrl_iface) { + f_ctrl_tx_nacc_rac_ci_rsp(rx_ctrl); + } else { + f_pcuif_tx_nacc_rac_ci_rsp(pcu_msg); + } + /* We should now receive a 2nd CTRL request with the new ARFCN+BSIC */ + f_handle_nacc_rac_ci_query(info_ind, req_arfcn + 1, req_bsic + 1, true, use_old_ctrl_iface); + + /* And finally everything continues as usual with RIN procedure */ + as_outbound_nacc_rim_resolve(info_ind); + + /* Announce SI back to MS, continue NACC procedure */ + f_ms_handle_pkt_neighbor_cell_data(ms, si_default); + + /* Obtain a Downlink block and make sure it is a Pkt Cell Chg Continue */ + f_rx_rlcmac_dl_block(dl_block, sched_fn); + if (not match(dl_block, tr_RLCMAC_DL_CTRL(?, tr_RlcMacDlCtrl_PKT_CELL_CHG_CONTINUE))) { + setverdict(fail, "Rx unexpected DL block: ", dl_block); + f_shutdown(__BFILE__, __LINE__); + } + /* PKT CELL CHG CONTINUE ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + if (dl_block.ctrl.mac_hdr.rrbp_valid) { + sched_fn := f_rrbp_ack_fn(sched_fn, dl_block.ctrl.mac_hdr.rrbp); + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Test MS sending Pkt Cell Change Notify twice (different tgt cell each time) + * while waiting for SI resolution */ +testcase TC_nacc_outbound_pkt_cell_chg_notif_twice2() runs on RAW_PCU_Test_CT { + var PollFnCtx pollctx; + var GprsMS ms; + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default); + var template (value) RlcmacUlCtrlMsg cell_chg_notif; + var RlcmacDlBlock dl_block; + var uint32_t sched_fn; + var CtrlMessage rx_ctrl; + var GsmArfcn req_arfcn := 862; + var uint6_t req_bsic := 43; + var boolean use_old_ctrl_iface := mp_ctrl_neigh_ip != ""; + + if (use_old_ctrl_iface) { + /* Initialize osmo-bsc emulation neighbor resolution CTRL port */ + f_ipa_ctrl_start_server(mp_ctrl_neigh_ip, mp_ctrl_neigh_port); + } + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Make sure we are not affected by full cache from previous tests */ + f_pcuvty_flush_neigh_caches(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Send PACKET RESOURCE REQUEST */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap_gprs_def)); + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), pollctx.fn, nr := pollctx.tstrxbts); + + /* Start NACC from MS side */ + cell_chg_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF(ms.ul_tbf.tfi, req_arfcn, req_bsic); + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* osmo-pcu should now ask for resolution: */ + f_handle_nacc_rac_ci_query(info_ind, req_arfcn, req_bsic, true, use_old_ctrl_iface); + as_outbound_nacc_rim_resolve(info_ind, do_answer := false); + /* Before receiving RIM response, MS retransmits Pkt cell Chg Notif with different tgt cell: */ + cell_chg_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF(ms.ul_tbf.tfi, req_arfcn + 1, req_bsic + 1); + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + f_sleep(0.2); /* let some time to avoid race conditons between CTRL and RLCMAC */ + f_outbound_nacc_rim_tx_resp(info_ind); + + /* As a result, CTRL + RIM resolution for new tgt cell should now be done: */ + f_handle_nacc_rac_ci_query(info_ind, req_arfcn + 1, req_bsic + 1, true, use_old_ctrl_iface); + + /* And finally everything continues as usual with RIN procedure */ + as_outbound_nacc_rim_resolve(info_ind); + + /* Announce SI back to MS, continue NACC procedure */ + f_ms_handle_pkt_neighbor_cell_data(ms, si_default); + + /* Obtain a Downlink block and make sure it is a Pkt Cell Chg Continue */ + f_rx_rlcmac_dl_block(dl_block, sched_fn); + if (not match(dl_block, tr_RLCMAC_DL_CTRL(?, tr_RlcMacDlCtrl_PKT_CELL_CHG_CONTINUE))) { + setverdict(fail, "Rx unexpected DL block: ", dl_block); + f_shutdown(__BFILE__, __LINE__); + } + /* PKT CELL CHG CONTINUE ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + if (dl_block.ctrl.mac_hdr.rrbp_valid) { + sched_fn := f_rrbp_ack_fn(sched_fn, dl_block.ctrl.mac_hdr.rrbp); + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Test MS sending Pkt Cell Change Notify twice (different tgt cell each time) + * while sending Pkt Neigh Data Change */ +testcase TC_nacc_outbound_pkt_cell_chg_notif_twice3() runs on RAW_PCU_Test_CT { + var PollFnCtx pollctx; + var GprsMS ms; + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default); + var template (value) RlcmacUlCtrlMsg cell_chg_notif; + var RlcmacDlBlock dl_block; + var uint32_t sched_fn; + var CtrlMessage rx_ctrl; + var GsmArfcn req_arfcn := 862; + var uint6_t req_bsic := 43; + var boolean use_old_ctrl_iface := mp_ctrl_neigh_ip != ""; + + if (use_old_ctrl_iface) { + /* Initialize osmo-bsc emulation neighbor resolution CTRL port */ + f_ipa_ctrl_start_server(mp_ctrl_neigh_ip, mp_ctrl_neigh_port); + } + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Make sure we are not affected by full cache from previous tests */ + f_pcuvty_flush_neigh_caches(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Send PACKET RESOURCE REQUEST */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap_gprs_def)); + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), pollctx.fn, nr := pollctx.tstrxbts); + + /* Start NACC from MS side */ + cell_chg_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF(ms.ul_tbf.tfi, req_arfcn, req_bsic); + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* osmo-pcu should now ask for resolution: */ + f_handle_nacc_rac_ci_query(info_ind, req_arfcn, req_bsic, true, use_old_ctrl_iface); + /* RIM procedure: */ + as_outbound_nacc_rim_resolve(info_ind); + + /* Receive first Pkt Neigh data Change, then trigger a new Pkt Cell Change Notif (different ARFCN+BSIC): */ + f_ms_handle_pkt_neighbor_cell_data(ms, si_default, single_step := true); + cell_chg_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF(ms.ul_tbf.tfi, req_arfcn + 1, req_bsic + 1); + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* It should trigger RAC_CI resolution to start again: */ + f_handle_nacc_rac_ci_query(info_ind, req_arfcn + 1, req_bsic + 1, true, use_old_ctrl_iface); + /* RIM procedure: */ + as_outbound_nacc_rim_resolve(info_ind); + /* Transmit SI back to MS */ + f_ms_handle_pkt_neighbor_cell_data(ms, si_default); + + /* Obtain a Downlink block and make sure it is a Pkt Cell Chg Continue */ + f_rx_rlcmac_dl_block(dl_block, sched_fn); + if (not match(dl_block, tr_RLCMAC_DL_CTRL(?, tr_RlcMacDlCtrl_PKT_CELL_CHG_CONTINUE))) { + setverdict(fail, "Rx unexpected DL block: ", dl_block); + f_shutdown(__BFILE__, __LINE__); + } + /* PKT CELL CHG CONTINUE ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + if (dl_block.ctrl.mac_hdr.rrbp_valid) { + sched_fn := f_rrbp_ack_fn(sched_fn, dl_block.ctrl.mac_hdr.rrbp); + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Test MS sending Pkt Cell Change Notification twice (different tgt cell) while sending Pkt Cell Change Continue */ +testcase TC_nacc_outbound_pkt_cell_chg_notif_twice4() runs on RAW_PCU_Test_CT { + var PollFnCtx pollctx; + var GprsMS ms; + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default); + var template (value) RlcmacUlCtrlMsg cell_chg_notif; + var RlcmacDlBlock dl_block; + var uint32_t sched_fn; + var CtrlMessage rx_ctrl; + var GsmArfcn req_arfcn := 862; + var uint6_t req_bsic := 43; + var boolean use_old_ctrl_iface := mp_ctrl_neigh_ip != ""; + + if (use_old_ctrl_iface) { + /* Initialize osmo-bsc emulation neighbor resolution CTRL port */ + f_ipa_ctrl_start_server(mp_ctrl_neigh_ip, mp_ctrl_neigh_port); + } + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Make sure we are not affected by full cache from previous tests */ + f_pcuvty_flush_neigh_caches(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Send PACKET RESOURCE REQUEST */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap_gprs_def)); + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), pollctx.fn, nr := pollctx.tstrxbts); + + /* Start NACC from MS side */ + cell_chg_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF(ms.ul_tbf.tfi, req_arfcn, req_bsic); + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* osmo-pcu should now ask for resolution: */ + f_handle_nacc_rac_ci_query(info_ind, req_arfcn, req_bsic, true, use_old_ctrl_iface); + /* RIM procedure: */ + as_outbound_nacc_rim_resolve(info_ind); + + /* Announce SI back to MS, continue NACC procedure */ + f_ms_handle_pkt_neighbor_cell_data(ms, si_default); + + /* trigger a Pkt Cell Change Notif with different tgt cell */ + cell_chg_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF(ms.ul_tbf.tfi, req_arfcn + 1, req_bsic + 1); + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* It should trigger RAC_CI resolution to start again: */ + f_handle_nacc_rac_ci_query(info_ind, req_arfcn + 1, req_bsic + 1, true, use_old_ctrl_iface); + + /* PCU TBF NACC state changed, so we should next receive a dummy block: */ + f_rx_rlcmac_dl_block_exp_dummy(dl_block, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* RIM procedure: */ + as_outbound_nacc_rim_resolve(info_ind); + /* Transmit SI back to MS */ + f_ms_handle_pkt_neighbor_cell_data(ms, si_default); + + /* Obtain a Downlink block and make sure it is a Pkt Cell Chg Continue */ + f_rx_rlcmac_dl_block(dl_block, sched_fn); + if (not match(dl_block, tr_RLCMAC_DL_CTRL(?, tr_RlcMacDlCtrl_PKT_CELL_CHG_CONTINUE))) { + setverdict(fail, "Rx unexpected DL block: ", dl_block); + f_shutdown(__BFILE__, __LINE__); + } + /* PKT CELL CHG CONTINUE ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + if (dl_block.ctrl.mac_hdr.rrbp_valid) { + sched_fn := f_rrbp_ack_fn(sched_fn, dl_block.ctrl.mac_hdr.rrbp); + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Test MS sending Pkt Cell Change Notification twice (different tgt cell) while waiting for Pkt Cell Change Continue CTRL ACK*/ +testcase TC_nacc_outbound_pkt_cell_chg_notif_twice5() runs on RAW_PCU_Test_CT { + var PollFnCtx pollctx; + var GprsMS ms; + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default); + var template (value) RlcmacUlCtrlMsg cell_chg_notif; + var RlcmacDlBlock dl_block; + var uint32_t sched_fn; + var CtrlMessage rx_ctrl; + var GsmArfcn req_arfcn := 862; + var uint6_t req_bsic := 43; + var boolean use_old_ctrl_iface := mp_ctrl_neigh_ip != ""; + + if (use_old_ctrl_iface) { + /* Initialize osmo-bsc emulation neighbor resolution CTRL port */ + f_ipa_ctrl_start_server(mp_ctrl_neigh_ip, mp_ctrl_neigh_port); + } + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Make sure we are not affected by full cache from previous tests */ + f_pcuvty_flush_neigh_caches(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Send PACKET RESOURCE REQUEST */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap_gprs_def)); + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), pollctx.fn, nr := pollctx.tstrxbts); + + /* Start NACC from MS side */ + cell_chg_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF(ms.ul_tbf.tfi, req_arfcn, req_bsic); + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* osmo-pcu should now ask for resolution: */ + f_handle_nacc_rac_ci_query(info_ind, req_arfcn, req_bsic, true, use_old_ctrl_iface); + /* RIM procedure: */ + as_outbound_nacc_rim_resolve(info_ind); + + /* Announce SI back to MS, continue NACC procedure */ + f_ms_handle_pkt_neighbor_cell_data(ms, si_default); + + /* Obtain a Downlink block and make sure it is a Pkt Cell Chg Continue */ + f_rx_rlcmac_dl_block(dl_block, sched_fn); + if (not match(dl_block, tr_RLCMAC_DL_CTRL(?, tr_RlcMacDlCtrl_PKT_CELL_CHG_CONTINUE))) { + setverdict(fail, "Rx unexpected DL block: ", dl_block); + f_shutdown(__BFILE__, __LINE__); + } + + /* trigger a Pkt Cell Change Notif with different tgt cell */ + cell_chg_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF(ms.ul_tbf.tfi, req_arfcn + 1, req_bsic + 1); + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* It should trigger RAC_CI resolution to start again: */ + /* When using new PCUIF interface for resolution, we must + * PCUIF.receive() here since that's the first message in the PCUIF + * queue that PCU will have sent. Calling other functions doing + * PCUIF.receive() (like f_ms_tx_ul_block() below) will make them fail + * due to unexpected message receive. */ + if (not use_old_ctrl_iface) { + f_handle_nacc_rac_ci_query(info_ind, req_arfcn + 1, req_bsic + 1, true, use_old_ctrl_iface); + } + + /* PKT CELL CHG CONTINUE ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + if (dl_block.ctrl.mac_hdr.rrbp_valid) { + sched_fn := f_rrbp_ack_fn(sched_fn, dl_block.ctrl.mac_hdr.rrbp); + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + } + + /* When using CTRL interface, we must schedule the ACK before (see + * above) blocking here waiting for the resoltion, otherwise we'll be + * too late scheduling by the time the resolution is done. */ + if (use_old_ctrl_iface) { + f_handle_nacc_rac_ci_query(info_ind, req_arfcn + 1, req_bsic + 1, true, use_old_ctrl_iface); + } + + /* PCU TBF NACC state changed, so we should next receive a dummy block: */ + f_rx_rlcmac_dl_block_exp_dummy(dl_block); + + /* RIM procedure: */ + as_outbound_nacc_rim_resolve(info_ind); + /* Transmit SI back to MS */ + f_ms_handle_pkt_neighbor_cell_data(ms, si_default); + + /* Obtain a Downlink block and make sure it is a Pkt Cell Chg Continue */ + f_rx_rlcmac_dl_block(dl_block, sched_fn); + if (not match(dl_block, tr_RLCMAC_DL_CTRL(?, tr_RlcMacDlCtrl_PKT_CELL_CHG_CONTINUE))) { + setverdict(fail, "Rx unexpected DL block: ", dl_block); + f_shutdown(__BFILE__, __LINE__); + } + /* PKT CELL CHG CONTINUE ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + if (dl_block.ctrl.mac_hdr.rrbp_valid) { + sched_fn := f_rrbp_ack_fn(sched_fn, dl_block.ctrl.mac_hdr.rrbp); + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Test MS sending Pkt Cell Change Notification on an MS with an existing but unassigned (no TFI) DL TBF */ +testcase TC_nacc_outbound_pkt_cell_chg_notif_unassigned_dl_tbf() runs on RAW_PCU_Test_CT { + var PollFnCtx pollctx; + var GprsMS ms; + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default); + var template (value) RlcmacUlCtrlMsg cell_chg_notif; + var RlcmacDlBlock dl_block; + var uint32_t sched_fn, dl_fn; + var CtrlMessage rx_ctrl; + var GsmArfcn req_arfcn := 862; + var uint6_t req_bsic := 43; + var octetstring data := f_rnd_octstring(10); + var boolean use_old_ctrl_iface := mp_ctrl_neigh_ip != ""; + + if (use_old_ctrl_iface) { + /* Initialize osmo-bsc emulation neighbor resolution CTRL port */ + f_ipa_ctrl_start_server(mp_ctrl_neigh_ip, mp_ctrl_neigh_port); + } + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + /* Initialize GPRS MS side */ + f_init_gprs_ms(); + ms := g_ms[0]; /* We only use first MS in this test */ + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Make sure we are not affected by full cache from previous tests */ + f_pcuvty_flush_neigh_caches(); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); + + /* Send PACKET RESOURCE REQUEST */ + pollctx := f_ms_establish_ul_tbf_2phase_access(ms, ts_RlcMacUlCtrl_PKT_RES_REQ(ms.tlli, ms_racap_gprs_def)); + /* Pkt Uplink Assignment above sets poll+rrbp requesting PACKET CONTROL ACK */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), pollctx.fn, nr := pollctx.tstrxbts); + + /* Start NACC from MS side */ + cell_chg_notif := ts_RlcMacUlCtrl_PKT_CELL_CHG_NOTIF(ms.ul_tbf.tfi, req_arfcn, req_bsic); + f_ms_tx_ul_block(ms, ts_RLC_UL_CTRL_ACK(cell_chg_notif), 0, nr := f_ms_tx_TsTrxBtsNum(ms)); + + /* osmo-pcu should now ask for resolution: */ + f_handle_nacc_rac_ci_query(info_ind, req_arfcn, req_bsic, true, use_old_ctrl_iface); + /* RIM procedure: */ + as_outbound_nacc_rim_resolve(info_ind); + + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data)); + /* Make sure we leave some time for SGSN->PCU data to arrive to PCU */ + f_sleep(0.1); + /* rx DL assignment, don't ack it yet (keep TBF in state ASSIGN): */ + f_ms_rx_pkt_ass_pacch(ms, sched_fn, tr_RLCMAC_DL_PACKET_ASS); + + /* NACC: scheduler selects tx Pkt Cell Neighbor Data. Receive first one: */ + f_ms_handle_pkt_neighbor_cell_data(ms, si_default, single_step := true); + /* ACK DL assignment (we do it here on purpose to test tx Pkt Neigh Cell + * Data with unassigned DL TBF in line above): */ + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + /* Continue receiving Pkt Cell Neighbor Data */ + f_ms_handle_pkt_neighbor_cell_data(ms, si_default, f_ms_tx_TsTrxBtsNum(ms), 1, 16); + + /* Obtain a Downlink block and make sure it is a Pkt Cell Chg Continue */ + f_rx_rlcmac_dl_block(dl_block, sched_fn); + if (not match(dl_block, tr_RLCMAC_DL_CTRL(?, tr_RlcMacDlCtrl_PKT_CELL_CHG_CONTINUE))) { + setverdict(fail, "Rx unexpected DL block: ", dl_block); + f_shutdown(__BFILE__, __LINE__); + } + /* PKT CELL CHG CONTINUE ACK/NACK sets poll+rrbp requesting PACKET CONTROL ACK */ + if (dl_block.ctrl.mac_hdr.rrbp_valid) { + sched_fn := f_rrbp_ack_fn(sched_fn, dl_block.ctrl.mac_hdr.rrbp); + f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn); + } + + /* Now that we confirmed the new assignment in the dl-tbf, lets receive the data and ack it */ + f_rx_rlcmac_dl_block_exp_data(dl_block, dl_fn, data, 0); + f_acknackdesc_ack_block(ms.dl_tbf.acknack_desc, dl_block, '1'B); + f_ms_tx_ul_block(ms, ts_RLCMAC_DL_ACK_NACK(ms.dl_tbf.tfi, ms.dl_tbf.acknack_desc), + f_dl_block_ack_fn(dl_block, dl_fn)); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + + +function f_do_inbound_nacc(template (value) RIM_Routing_Information tx_src_addr, template RIM_Routing_Information rx_dst_addr) +runs on RAW_PCU_Test_CT +{ + var template (value) RAN_Information_Request_RIM_Container req_cont; + var template (value) PDU_BSSGP bssgp_rim_pdu; + var template PDU_BSSGP bssgp_rim_pdu_expect; + var template RAN_Information_RIM_Container rim_cont_expect; + var RIM_Routing_Address bts_addr; + + /* Send sysinfo to the PCU */ + var template PCUIF_Message si1_data_ind := ts_PCUIF_DATA_IND(0, 0, 0, 0, PCU_IF_SAPI_BCCH, '5506'O & si1_default, 0, 0, 0, 0, 32767); + BTS.send(si1_data_ind); + var template PCUIF_Message si3_data_ind := ts_PCUIF_DATA_IND(0, 0, 0, 0, PCU_IF_SAPI_BCCH, '4906'O & si3_default, 0, 0, 0, 0, 32767); + BTS.send(si3_data_ind); + var template PCUIF_Message si13_data_ind := ts_PCUIF_DATA_IND(0, 0, 0, 0, PCU_IF_SAPI_BCCH, '0106'O & si13_default, 0, 0, 0, 0, 32767); + BTS.send(si13_data_ind); + f_sleep(1.0); + + bts_addr := valueof(t_RIM_Routing_Address_cid(mp_gb_cfg.bvc[0].cell_id)); + + req_cont := ts_RAN_Information_Request_RIM_Container(ts_RIM_Application_Identity(RIM_APP_ID_NACC), + ts_RIM_Sequence_Number(1), + ts_RIM_PDU_Indications(false, RIM_PDU_TYPE_SING_REP), + ts_RIM_Protocol_Version_Number(1), + tsu_RAN_Information_Request_Application_Container_NACC(mp_gb_cfg.bvc[0].cell_id), + omit); + bssgp_rim_pdu := ts_RAN_INFORMATION_REQUEST(ts_RIM_Routing_Information(RIM_ADDR_GERAN_CELL_ID, bts_addr), + tx_src_addr, req_cont); + + rim_cont_expect := tr_RAN_Information_RIM_Container(tr_RIM_Application_Identity(RIM_APP_ID_NACC), + tr_RIM_Sequence_Number(1), + tr_RIM_PDU_Indications(false, RIM_PDU_TYPE_SING_REP), + tr_RIM_Protocol_Version_Number(1), + tru_ApplContainer_or_ApplErrContainer_NACC(tru_ApplContainer_NACC(mp_gb_cfg.bvc[0].cell_id, false, 3, si_default)), + omit); + + bssgp_rim_pdu_expect := tr_PDU_BSSGP_RAN_INFORMATION(rx_dst_addr, + tr_RIM_Routing_Information(RIM_ADDR_GERAN_CELL_ID, bts_addr), + rim_cont_expect); + RIM.send(bssgp_rim_pdu); + timer T := 2.0; + T.start; alt { - [] L1.receive(RLCMAC_ph_data_ind:{cs:=?, ts_nr:=?, fn:=?, block:=tr_RLCMAC_DATA_RRBP}) -> value dl { - var uint6_t tfi := dl.block.data.mac_hdr.hdr_ext.tfi; - var GsmFrameNumber ul_fn := f_rrbp_fn(dl.fn, dl.block.data.mac_hdr.mac_hdr.rrbp); - var AckNackDescription an_desc := { /* FIXME: compute this based on state */ - final_ack := '1'B, - starting_seq_nr := 0, - receive_block_bitmap := '0000000000000000000000000000000000000000000000000000000000000001'B + [] RIM.receive(bssgp_rim_pdu_expect) { } + [] RIM.receive { + setverdict(fail, "Unexpected BSSGP RIM PDU received"); + } + [] T.timeout { + setverdict(fail, "No BSSGP RIM PDU received"); + mtc.stop; + } + } +} +/* Send a RIM RAN info request to the PCU and verify the response, we expect + * getting the system information back which we have transfered to the PCU via + * PCUIF on startup. */ +testcase TC_rim_ran_info_req_single_rep() runs on RAW_PCU_Test_CT { + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + + var BssgpCellId src_cid := {ra_id := { lai := { mcc_mnc := '262F42'H, lac := 12345}, rac := 0 }, cell_id := 20962 }; + var RIM_Routing_Address src_addr := valueof(t_RIM_Routing_Address_cid(src_cid)); + + f_do_inbound_nacc(ts_RIM_Routing_Information(RIM_ADDR_GERAN_CELL_ID, src_addr), + tr_RIM_Routing_Information(RIM_ADDR_GERAN_CELL_ID, src_addr)); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Same as TC_rim_ran_info_req_single_rep, but using an EUTRAN eNodeB ID as + * Routing information, to verify PCU handles that kind of address just fine + */ +testcase TC_rim_ran_info_req_single_rep_eutran() runs on RAW_PCU_Test_CT { + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + + var BssgpCellId src_cid := {ra_id := { lai := { mcc_mnc := '262F42'H, lac := 12345}, rac := 0 }, cell_id := 20962 }; + var RIM_Routing_Address src_addr := valueof(t_RIM_Routing_Address_enbid(src_cid, tac := 3, gnbid := '12345678123456'O)); + + f_do_inbound_nacc(ts_RIM_Routing_Information(RIM_ADDR_EUTRAN_NODEB_ID, src_addr), + tr_RIM_Routing_Information(RIM_ADDR_EUTRAN_NODEB_ID, src_addr)); + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Same as above, but in this case we simulate the rare case in which the PCU + * has no system information available. We expect getting a response back but + * with no system information inside. */ +testcase TC_rim_ran_info_req_single_rep_no_si() runs on RAW_PCU_Test_CT { + var template (value) PCUIF_info_ind info_ind := ts_PCUIF_INFO_default; + var PCUIF_Message pcu_msg; + timer T := 2.0; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + + /* Clear sysinfo from the PCU */ + var template PCUIF_Message si1_data_ind := ts_PCUIF_DATA_IND(0, 0, 0, 0, PCU_IF_SAPI_BCCH, '01'O, 0, 0, 0, 0, 32767); + BTS.send(si1_data_ind); + var template PCUIF_Message si3_data_ind := ts_PCUIF_DATA_IND(0, 0, 0, 0, PCU_IF_SAPI_BCCH, '03'O, 0, 0, 0, 0, 32767); + BTS.send(si3_data_ind); + var template PCUIF_Message si16_data_ind := ts_PCUIF_DATA_IND(0, 0, 0, 0, PCU_IF_SAPI_BCCH, '0b'O, 0, 0, 0, 0, 32767); + BTS.send(si16_data_ind); + f_sleep(1.0); + + var RIM_Routing_Address dst_addr; + var RIM_Routing_Address src_addr; + var template (value) RAN_Information_Request_RIM_Container req_cont; + var template (value) PDU_BSSGP bssgp_rim_pdu; + var template PDU_BSSGP bssgp_rim_pdu_expect; + var template RAN_Information_RIM_Container rim_cont_expect; + + var BssgpCellId src_cid := {ra_id := { lai := { mcc_mnc := '262F42'H, lac := 12345}, rac := 0 }, cell_id := 20962 }; + src_addr := valueof(t_RIM_Routing_Address_cid(src_cid)); + dst_addr := valueof(t_RIM_Routing_Address_cid(mp_gb_cfg.bvc[0].cell_id)); + + req_cont := ts_RAN_Information_Request_RIM_Container(ts_RIM_Application_Identity(RIM_APP_ID_NACC), + ts_RIM_Sequence_Number(1), + ts_RIM_PDU_Indications(false, RIM_PDU_TYPE_SING_REP), + ts_RIM_Protocol_Version_Number(1), + tsu_RAN_Information_Request_Application_Container_NACC(mp_gb_cfg.bvc[0].cell_id), + omit); + bssgp_rim_pdu := ts_RAN_INFORMATION_REQUEST(ts_RIM_Routing_Information(RIM_ADDR_GERAN_CELL_ID, dst_addr), + ts_RIM_Routing_Information(RIM_ADDR_GERAN_CELL_ID, src_addr), + req_cont); + + + rim_cont_expect := tr_RAN_Information_RIM_Container(tr_RIM_Application_Identity(RIM_APP_ID_NACC), + tr_RIM_Sequence_Number(1), + tr_RIM_PDU_Indications(false, RIM_PDU_TYPE_SING_REP), + tr_RIM_Protocol_Version_Number(1), + tru_ApplContainer_or_ApplErrContainer_NACC(tru_ApplContainer_NACC(mp_gb_cfg.bvc[0].cell_id, false, 0, ''O)), + omit); + + bssgp_rim_pdu_expect := tr_PDU_BSSGP_RAN_INFORMATION(tr_RIM_Routing_Information(RIM_ADDR_GERAN_CELL_ID, src_addr), + tr_RIM_Routing_Information(RIM_ADDR_GERAN_CELL_ID, dst_addr), + rim_cont_expect); + RIM.send(bssgp_rim_pdu); + T.start; + alt { + [] RIM.receive(bssgp_rim_pdu_expect) { } + [] RIM.receive { + setverdict(fail, "Unexpected BSSGP RIM PDU received"); + } + [] T.timeout { + setverdict(fail, "No BSSGP RIM PDU received"); + mtc.stop; + } + } + + f_shutdown(__BFILE__, __LINE__, final := true); +} + +/* Verify PCU schedule idle blocks (len=0) if no TBF attached to it. See OS#4772, SYS#4919 */ +testcase TC_pdch_energy_saving() runs on RAW_PCU_Test_CT { + var PCUIF_info_ind info_ind; + var template (value) TsTrxBtsNum nr; + var RlcmacDlBlock dl_block; + var BTS_PDTCH_Block data_msg; + var integer ts; + timer T; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + + info_ind := valueof(ts_PCUIF_INFO_default); + /* The 2 first TRX are enabled. */ + f_PCUIF_PDCHMask_set(info_ind, '00000000'B, (2 .. 7)); + f_PCUIF_PDCHMask_set(info_ind, '00000001'B, 0); + f_PCUIF_PDCHMask_set(info_ind, '00000001'B, 1); + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Establish BSSGP connection to the PCU */ + f_bssgp_establish(); + + for (ts := 0; ts < 2; ts := ts + 1) { + nr := ts_TsTrxBtsNum(ts_nr := 7, trx_nr := ts, bts_nr := 0, blk_nr := 0); + + BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr, + sapi := PCU_IF_SAPI_PDTCH, fn := 0, + arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), block_nr := nr.blk_nr)); + T.start(0.5); + alt { + [] BTS.receive(tr_PCUIF_DATA_PDTCH(nr.bts_nr, + tr_PCUIF_DATA(nr.trx_nr, nr.ts_nr, sapi := PCU_IF_SAPI_PDTCH), + omit)) -> value data_msg { + setverdict(pass); + T.stop; + } + [] as_rx_fail_dummy(nr); + [] BTS.receive { + setverdict(fail, "Unexpected block from BTS"); + f_shutdown(__BFILE__, __LINE__); + } + [] T.timeout { + setverdict(fail, "Expected IDLE block from BTS"); + f_shutdown(__BFILE__, __LINE__); } - var RlcmacUlCtrlMsg ctrl_ack; - ctrl_ack := valueof(ts_RlcMacUlCtrl_PKT_DL_ACK(tfi, an_desc)); - var RlcmacUlBlock ul_block := valueof(ts_RLC_UL_CTRL_ACK(ctrl_ack)); - L1.send(ts_PH_DATA_ABS(0, CS1, dl.ts_nr, ul_fn, {false, 871}, ul_block)); - log("Sent DL ACK: ", ul_block); } - [] L1.receive { repeat; } } - f_sleep(10.0); + f_shutdown(__BFILE__, __LINE__, final := true); } -/* FIXME: merge this into BSSGP_Client_CT ? */ -type component bssgp_CT extends BSSGP_Client_CT { - var NS_CT ns_component; - var BSSGP_CT bssgp_component; - var boolean g_initialized := false; +/* Test stats for available and occupied PDCHs */ +testcase TC_stat_pdch_avail_occ() runs on RAW_PCU_Test_CT { + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default); + const BssgpBvci bvci := mp_gb_cfg.bvc[0].bvci; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + + /* Only the 4 first TRX are enabled, each with 2 PDCHs. */ + f_PCUIF_PDCHMask_set(info_ind, '00000011'B, 0); + f_PCUIF_PDCHMask_set(info_ind, '00001100'B, 1); + f_PCUIF_PDCHMask_set(info_ind, '11000000'B, 2); + f_PCUIF_PDCHMask_set(info_ind, '00110000'B, 3); + f_PCUIF_PDCHMask_set(info_ind, '00000000'B, (4 .. 7)); + + /* Allocate 4 GprsMS instances */ + f_init_gprs_ms(4); + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Reset stats */ + f_statsd_reset(); + + /* Establish BSSGP */ + f_bssgp_establish(); + + /* 8 PDCHs available, 0 occupied */ + var StatsDExpects expect := { + { name := "TTCN3.bts.0.pdch.available", mtype := "g", min := 8, max := 8 }, + { name := "TTCN3.bts.0.pdch.occupied", mtype := "g", min := 0, max := 0 }, + { name := "TTCN3.bts.0.pdch.occupied.gprs", mtype := "g", min := 0, max := 0 }, + { name := "TTCN3.bts.0.pdch.occupied.egprs", mtype := "g", min := 0, max := 0 } + }; + f_statsd_expect(expect); + + /* Establish an Uplink TBF for each GprsMS instance (3x GPRS, 1x EGPRS) */ + f_multi_ms_bssgp_register(); + f_ms_establish_ul_tbf(g_ms[0]); + f_ms_establish_ul_tbf(g_ms[1]); + f_ms_establish_ul_tbf(g_ms[2]); + f_ms_establish_ul_tbf_2phase_access(g_ms[3], ts_RlcMacUlCtrl_PKT_RES_REQ(g_ms[3].tlli, ms_racap_egprs_def)); + + /* 4 PDCHs occupied */ + expect := { + { name := "TTCN3.bts.0.pdch.available", mtype := "g", min := 8, max := 8 }, + { name := "TTCN3.bts.0.pdch.occupied", mtype := "g", min := 4, max := 4 }, + { name := "TTCN3.bts.0.pdch.occupied.gprs", mtype := "g", min := 3, max := 3 }, + { name := "TTCN3.bts.0.pdch.occupied.egprs", mtype := "g", min := 1, max := 1 } + }; + f_statsd_expect(expect); + + f_shutdown(__BFILE__, __LINE__, final := true); } -/* FIXME: merge this into BSSGP_Client_CT ? */ -function f_init_bssgp() runs on bssgp_CT { - var MmContext mmctx := { - imsi := '262420000000001'H, - tlli := 'FFFFFFFF'O, - n_u := 0 +/* Test stats for available and occupied PDCHs, for MS which is not known by + * the PCU (e.g. because it was forgotten due to no interaction, and old DL + * data arrives from SGSN) */ +function f_tc_stat_pdch_avail_occ_ms_not_known(boolean egprs) runs on RAW_PCU_Test_CT { + var PCUIF_info_ind info_ind := valueof(ts_PCUIF_INFO_default); + const BssgpBvci bvci := mp_gb_cfg.bvc[0].bvci; + + /* Ensure a deterministic slot allocation of 1 PDCH with MS class 1 */ + const MultislotCap_GPRS_BSSGP bssgp_mscap_gprs := { + gprsmultislotclass := '00001'B, + gprsextendeddynalloccap := '0'B }; + const MultislotCap_EGPRS_BSSGP bssgp_mscap_egprs := { + egprsmultislotclass := '00001'B, + egprsextendeddynalloccap := '0'B + }; + template (value) MSRadioAccessCapabilityV_BSSGP bssgp_ms_racap_gprs := { + valueof(ts_RaCapRec_BSSGP('0001'B /* E-GSM */, bssgp_mscap_gprs, omit)) }; + template (value) MSRadioAccessCapabilityV_BSSGP bssgp_ms_racap_egprs := { + valueof(ts_RaCapRec_BSSGP('0001'B /* E-GSM */, bssgp_mscap_gprs, bssgp_mscap_egprs)) }; + + /* Initialize NS/BSSGP side */ + f_init_bssgp(); + + /* Only the 4 first TRX are enabled, each with 2 PDCHs. */ + f_PCUIF_PDCHMask_set(info_ind, '00000011'B, 0); + f_PCUIF_PDCHMask_set(info_ind, '00001100'B, 1); + f_PCUIF_PDCHMask_set(info_ind, '11000000'B, 2); + f_PCUIF_PDCHMask_set(info_ind, '00110000'B, 3); + f_PCUIF_PDCHMask_set(info_ind, '00000000'B, (4 .. 7)); + + /* Allocate 1 GprsMS instance */ + f_init_gprs_ms(1); + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + + /* Reset stats */ + f_statsd_reset(); + + /* Establish BSSGP */ + f_bssgp_establish(); + + /* 8 PDCHs available, 0 occupied */ + var StatsDExpects expect := { + { name := "TTCN3.bts.0.pdch.available", mtype := "g", min := 8, max := 8 }, + { name := "TTCN3.bts.0.pdch.occupied", mtype := "g", min := 0, max := 0 }, + { name := "TTCN3.bts.0.pdch.occupied.gprs", mtype := "g", min := 0, max := 0 }, + { name := "TTCN3.bts.0.pdch.occupied.egprs", mtype := "g", min := 0, max := 0 } + }; + f_statsd_expect(expect); + var GprsMS ms := g_ms[0]; /* We only use first MS in this test */ + f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli); - if (g_initialized == true) { - return; + /* SGSN sends some DL data, PCU will page on CCCH (PCH) */ + var octetstring data := f_rnd_octstring(1400); + if (egprs) { + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data, bssgp_ms_racap_egprs, imsi := ts_BSSGP_IMSI(ms.imsi))); + } else { + BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data, bssgp_ms_racap_gprs, imsi := ts_BSSGP_IMSI(ms.imsi))); } - g_initialized := true; + f_ms_exp_dl_tbf_ass_ccch(ms); - /* 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[0], bssgp_component:BSSGP_SP); - connect(self:BSSGP_SIG[0], bssgp_component:BSSGP_SP_SIG); - connect(self:BSSGP_PROC[0], bssgp_component:BSSGP_PROC); - /* 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(mp_nsconfig)); - bssgp_component.start(BssgpStart(mp_gb_cfg)); + /* Wait timer X2002 and DL block is available after CCCH IMM ASS */ + f_sleep(X2002); + + /* 1 PDCH occupied */ + if (egprs) { + expect := { + { name := "TTCN3.bts.0.pdch.available", mtype := "g", min := 8, max := 8 }, + { name := "TTCN3.bts.0.pdch.occupied", mtype := "g", min := 1, max := 1 }, + { name := "TTCN3.bts.0.pdch.occupied.gprs", mtype := "g", min := 0, max := 0 }, + { name := "TTCN3.bts.0.pdch.occupied.egprs", mtype := "g", min := 1, max := 1 } + }; + } else { + expect := { + { name := "TTCN3.bts.0.pdch.available", mtype := "g", min := 8, max := 8 }, + { name := "TTCN3.bts.0.pdch.occupied", mtype := "g", min := 1, max := 1 }, + { name := "TTCN3.bts.0.pdch.occupied.gprs", mtype := "g", min := 1, max := 1 }, + { name := "TTCN3.bts.0.pdch.occupied.egprs", mtype := "g", min := 0, max := 0 } + }; + } + f_statsd_expect(expect); - f_bssgp_client_register(mmctx.imsi, mmctx.tlli, mp_gb_cfg.cell_id); + /* Clean up */ + f_shutdown(__BFILE__, __LINE__, final := true); } +testcase TC_stat_pdch_avail_occ_ms_not_known_gprs() runs on RAW_PCU_Test_CT { + f_tc_stat_pdch_avail_occ_ms_not_known(false); +} +testcase TC_stat_pdch_avail_occ_ms_not_known_egprs() runs on RAW_PCU_Test_CT { + f_tc_stat_pdch_avail_occ_ms_not_known(true); +} + +/* Make sure that bts.0.pdch.all_allocated is set when we allocate all resources */ +testcase TC_ratectr_all_available_allocated() runs on RAW_PCU_Test_CT { + var PCUIF_info_ind info_ind; + var template IARRestOctets rest; + var BIT11 ra11; + + info_ind := valueof(ts_PCUIF_INFO_default); + + /* Only the first TRX is enabled. */ + f_PCUIF_PDCHMask_set(info_ind, '00000000'B, (1 .. 7)); + f_PCUIF_PDCHMask_set(info_ind, '00000001'B, 0); + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename(), info_ind); + f_statsd_reset(); + + var EGPRSPktChRequest req := { + one_phase := { + tag := '0'B, + multislot_class := '10101'B, + priority := '01'B, + random_bits := '101'B + } + }; + + /* We send 7 requests, the IUT gives us all available USFs (0..6) */ + for (var integer i := 0; i < 7; i := i + 1) { + req.one_phase.random_bits := int2bit(f_rnd_int(8), 3); + f_TC_egprs_pkt_chan_req(req, tr_IMM_TBF_ASS); + } + ra11 := enc_EGPRSPktChRequest2bits(req); + rest := tr_IARRestOctets({ *, tr_ExtRAOpt(substr(ra11, 6, 5)), * }); + + /* At this point, the IUT should run out of free USFs */ + f_TC_egprs_pkt_chan_req_reject(ra11, 1870, rest); + + /* bts.0.pdch.all_allocated is updated once per second, wait some time to make sure it was updated. */ + f_sleep(2.0); + var StatsDExpects expect := { + { name := "TTCN3.bts.0.pdch.all_allocated", mtype := "c", min := 1, max := 1 } + }; + f_statsd_expect(expect); + f_shutdown(__BFILE__, __LINE__, final := true); +} control { - execute(TC_selftest_ns()); - execute(TC_ul_tbf_single_llc_sizes()); - execute(TC_ul_tbf()); - execute(TC_paging()); + execute( TC_pcuif_suspend() ); + execute( TC_pcuif_suspend_active_tbf() ); + execute( TC_ta_ptcch_idle() ); + execute( TC_ta_rach_imm_ass() ); + execute( TC_ta_ul_ack_nack_first_block() ); + execute( TC_ta_idle_dl_tbf_ass() ); + execute( TC_ta_ptcch_ul_multi_tbf() ); + execute( TC_cs_lqual_ul_tbf() ); + execute( TC_cs_initial_ul() ); + execute( TC_cs_max_ul() ); + execute( TC_cs_initial_dl() ); + execute( TC_cs_max_dl() ); + execute( TC_dl_cs1_to_cs4() ); + execute( TC_mcs_initial_ul() ); + execute( TC_mcs_max_ul() ); + execute( TC_mcs_initial_dl() ); + execute( TC_mcs_max_dl() ); + execute( TC_t3141() ); + execute( TC_n3101_max_t3169() ); + execute( TC_n3103_max_t3169() ); + execute( TC_x2031_t3191() ); + execute( TC_zero_x2031_t3191() ); + execute( TC_t3193() ); + execute( TC_n3105_max_t3195() ); + execute( TC_t3172_wait_ind_size0() ); + execute( TC_t3172_wait_ind_size1() ); + execute( TC_countdown_procedure() ); + execute( TC_ul_all_sizes() ); + execute( TC_ul_data_toolong_fills_padding() ); + execute( TC_mo_ping_pong() ); + execute( TC_mo_ping_pong_with_ul_racap() ); + execute( TC_force_two_phase_access() ); + execute( TC_mt_ping_pong() ); + execute( TC_mt_ping_pong_with_dl_racap() ); + execute( TC_ul_intermediate_retrans() ); + execute( TC_imm_ass_dl_block_retrans() ); + execute( TC_dl_flow_more_blocks() ); + execute( TC_ul_flow_multiple_llc_blocks() ); + execute( TC_dl_no_ack_retrans_imm_ass() ); + execute( TC_dl_llc_sapi_priority() ); + execute( TC_ul_tbf_bsn_wraparound_gprs()); + execute( TC_paging_cs_from_bts() ); + execute( TC_paging_cs_from_sgsn_sign_ptmsi() ); + execute( TC_paging_cs_from_sgsn_sign() ); + execute( TC_paging_cs_from_sgsn_ptp() ); + execute( TC_paging_ps_from_sgsn_sign_ptmsi() ); + execute( TC_paging_ps_from_sgsn_sign() ); + execute( TC_paging_ps_from_sgsn_ptp() ); + execute( TC_paging_pch_timeout() ); + + execute( TC_paging_cs_multi_ms_imsi_tmsi() ); + execute( TC_paging_cs_multi_ms_imsi() ); + execute( TC_paging_cs_multi_ms_tmsi() ); + execute( TC_bssgp_dl_unitdata_with_valid_imsi() ); + execute( TC_bssgp_dl_unitdata_with_invalid_imsi() ); + execute( TC_dl_gprs_data_no_llc_ui_dummy() ); + execute( TC_dl_egprs_data_no_llc_ui_dummy() ); + + execute( TC_ul_tbf_finished_pkt_dl_ass_pch() ); + execute( TC_ul_tbf_1phase_while_dl_ass_pch() ); + execute( TC_ul_tbf_2phase_while_dl_ass_pch() ); + + /* EGPRS specific test cases */ + execute( TC_egprs_pkt_chan_req_signalling() ); + execute( TC_egprs_pkt_chan_req_one_phase() ); + execute( TC_egprs_pkt_chan_req_two_phase() ); + execute( TC_egprs_pkt_chan_req_reject_content() ); + execute( TC_egprs_pkt_chan_req_reject_emergency() ); + execute( TC_egprs_pkt_chan_req_reject_exhaustion() ); + + execute( TC_mo_ping_pong_with_ul_racap_egprs_only() ); + + /* Immediate Assignment on AGCH/PCH */ + execute( TC_pcuif_fh_imm_ass_ul_egprs() ); + execute( TC_pcuif_fh_imm_ass_ul() ); + execute( TC_pcuif_fh_imm_ass_dl() ); + /* Packet Uplink/Downlink Assignment on PACCH */ + execute( TC_pcuif_fh_pkt_ass_ul() ); + execute( TC_pcuif_fh_pkt_ass_dl() ); + execute( TC_multitrx_multims_alloc() ); + execute( TC_dl_multislot_tbf_ms_class_from_sgsn() ); + execute( TC_dl_multislot_tbf_ms_class_unknown() ); + execute( TC_dl_multislot_tbf_ms_class_from_2phase() ); + execute( TC_ul_multislot_tbf_ms_class_from_2phase() ); + execute( TC_ul_tbf_reestablish_with_pkt_resource_req() ); + execute( TC_ul_tbf_reestablish_with_pkt_resource_req_t3168() ); + execute( TC_ul_tbf_reestablish_with_pkt_dl_ack_nack() ); + execute( TC_ul_tbf_reestablish_with_pkt_dl_ack_nack_egprs() ); + + execute( TC_multiplex_dl_gprs_egprs() ); + + execute( TC_pcuif_info_ind_subsequent() ); + execute( TC_nacc_outbound_success() ); + execute( TC_nacc_outbound_success_utran() ); + execute( TC_nacc_outbound_success_eutran() ); + execute( TC_nacc_outbound_success_no_ctrl_ack() ); + execute( TC_nacc_outbound_success_twice() ); + execute( TC_nacc_outbound_success_twice_nocache() ); + execute( TC_nacc_outbound_rac_ci_resolve_timeout() ); + execute( TC_nacc_outbound_si_resolve_timeout() ); + execute( TC_nacc_outbound_pkt_cell_chg_notif_dup() ); + execute( TC_nacc_outbound_pkt_cell_chg_notif_dup2() ); + execute( TC_nacc_outbound_pkt_cell_chg_notif_dup3() ); + execute( TC_nacc_outbound_pkt_cell_chg_notif_dup4() ); + execute( TC_nacc_outbound_pkt_cell_chg_notif_dup5() ); + execute( TC_nacc_outbound_pkt_cell_chg_notif_twice() ); + execute( TC_nacc_outbound_pkt_cell_chg_notif_twice2() ); + execute( TC_nacc_outbound_pkt_cell_chg_notif_twice3() ); + execute( TC_nacc_outbound_pkt_cell_chg_notif_twice4() ); + execute( TC_nacc_outbound_pkt_cell_chg_notif_twice5() ); + execute( TC_nacc_outbound_pkt_cell_chg_notif_unassigned_dl_tbf() ); + if (mp_ctrl_neigh_ip != "") { /* PCU using old CTRL neigh addr resolution iface */ + execute( TC_nacc_outbound_rac_ci_resolve_conn_refused() ); + execute( TC_nacc_outbound_rac_ci_resolve_fail_parse_response() ); + } + + execute( TC_rim_ran_info_req_single_rep() ); + execute( TC_rim_ran_info_req_single_rep_eutran() ); + execute( TC_rim_ran_info_req_single_rep_no_si() ); + + execute (TC_pdch_energy_saving() ); + + execute( TC_stat_pdch_avail_occ() ); + execute( TC_stat_pdch_avail_occ_ms_not_known_gprs() ); + execute( TC_stat_pdch_avail_occ_ms_not_known_egprs() ); + execute( TC_ratectr_all_available_allocated() ); } -}; +} diff --git a/pcu/PCU_Tests_NS.ttcn b/pcu/PCU_Tests_NS.ttcn new file mode 100644 index 00000000..eea8d3f5 --- /dev/null +++ b/pcu/PCU_Tests_NS.ttcn @@ -0,0 +1,248 @@ +module PCU_Tests_NS { + +/* Osmocom PCU test suite for IP Sub-Network-Service (SNS) 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 General_Types all; +import from Osmocom_Types all; +import from Osmocom_VTY_Functions all; +import from TELNETasp_PortType all; +import from PCU_Tests all; +import from SGSN_Components 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 PCUIF_Types all; +import from PCUIF_CodecPort all; +import from RAW_NS all; + +type component RAW_PCU_CT { + /* PCUIF (we emulate the BTS part) */ + port PCUIF_CODEC_PT PCU; + var ConnectionId g_pcu_conn_id := -1; + /* VTY connection to the PCU */ + port TELNETasp_PT PCUVTY; +} + +type component RAW_Test_CT extends RAW_NS_CT, RAW_PCU_CT { +} + +function f_init_vty(charstring id) runs on RAW_PCU_CT { + map(self:PCUVTY, system:PCUVTY); + f_vty_set_prompts(PCUVTY); + f_vty_transceive(PCUVTY, "enable"); +} + +function f_init_pcuif() runs on RAW_PCU_CT { + var PCUIF_info_ind info_ind; + map(self:PCU, system:PCU); + + + info_ind := valueof(ts_PCUIF_INFO_default); + + /* Connect the Unix Domain Socket */ + g_pcu_conn_id := f_pcuif_listen(PCU, mp_pcu_sock_path); + PCU.receive(UD_connected:?); + + /* Wait for PCU_VERSION and return INFO_IND */ + PCU.receive(t_SD_PCUIF(g_pcu_conn_id, tr_PCUIF_TXT_IND(0, PCU_VERSION, ?))); + /* FIXME: make sure to use parameters from mp_gb_cfg.bvc[0].cell_id in the PCU INFO IND */ + var template PCUIF_Message info_ind_msg := ts_PCUIF_INFO_IND(0, info_ind); + PCU.send(t_SD_PCUIF(g_pcu_conn_id, info_ind_msg)); +} + +function f_pcuif_tx(template (value) PCUIF_Message msg) runs on RAW_PCU_CT { + PCU.send(t_SD_PCUIF(g_pcu_conn_id, msg)); +} + +/* ensure no matching message is received within 'tout' */ +function f_ensure_no_ns(template PDU_NS ns := ?, integer idx := 0, float tout := 3.0) +runs on RAW_Test_CT { + timer T := tout; + T.start; + alt { + [] NSCP[idx].receive(ns) { + setverdict(fail, "NS-ALIVE from unconfigured (possibly initial) endpoint"); + } + [] T.timeout { + setverdict(pass); + } + } +} + +/* test the NS-RESET procedure */ +testcase TC_ns_reset() runs on RAW_Test_CT { + f_init_ns_codec(mp_nsconfig); + f_init_pcuif(); + + + /* Expect inbound NS-RESET procedure */ + as_rx_ns_reset_ack(oneshot := true); + setverdict(pass); + f_clean_ns_codec(); +} + +/* ensure NS-RESET are re-transmitted */ +testcase TC_ns_reset_retrans() runs on RAW_Test_CT { + f_init_ns_codec(mp_nsconfig); + f_init_pcuif(); + + var integer i; + for (i := 0; i < 3; i := i+1) { + NSCP[0].receive(tr_NS_RESET(NS_CAUSE_OM_INTERVENTION, + g_nsconfig.nsvc[0].nsvci, g_nsconfig.nsei)); + } + + /* Expect inbound NS-RESET procedure */ + as_rx_ns_reset_ack(oneshot := true); + setverdict(pass); + f_clean_ns_codec(); +} + +/* test the inbound NS-ALIVE procedure after NS-RESET */ +testcase TC_ns_alive() runs on RAW_Test_CT { + f_init_ns_codec(mp_nsconfig); + f_init_pcuif(); + + /* Expect inbound NS-RESET procedure */ + as_rx_ns_reset_ack(oneshot := true); + + alt { + /* wait for one ALIVE cycle, then ACK any further ALIVE in the background */ + [] NSCP[0].receive(t_NS_ALIVE) { setverdict(pass); }; + [] NSCP[0].receive(t_NS_UNBLOCK) { repeat; } + } + f_clean_ns_codec(); +} + +/* Test for NS-RESET after NS-ALIVE timeout */ +testcase TC_ns_alive_timeout_reset() runs on RAW_Test_CT { + f_init_ns_codec(mp_nsconfig, guard_secs := 100.0); + f_init_pcuif(); + + /* Expect inbound NS-RESET procedure */ + as_rx_ns_reset_ack(oneshot := true); + + /* wait for at least one NS-ALIVE */ + alt { + [] as_rx_alive_tx_ack(oneshot := true) { }; + [] NSCP[0].receive(t_NS_UNBLOCK) { repeat; } + } + + /* wait for NS-RESET to re-appear, ignoring any NS-ALIVE until then */ + alt { + [] as_rx_ns_reset_ack(oneshot := true) { setverdict(pass); } + [] NSCP[0].receive(t_NS_ALIVE) { repeat; } + [] NSCP[0].receive(t_NS_UNBLOCK) { repeat; } + } + + f_clean_ns_codec(); +} + +/* test for NS-RESET/NS-ALIVE/NS-UNBLOCK */ +testcase TC_ns_unblock() runs on RAW_Test_CT { + f_init_ns_codec(mp_nsconfig); + f_init_pcuif(); + + /* Expect inbound NS-RESET procedure */ + as_rx_ns_reset_ack(oneshot := true); + + /* keep it alive */ + activate(as_rx_alive_tx_ack()); + + as_rx_ns_unblock_ack(oneshot := true); + setverdict(pass); + f_clean_ns_codec(); +} + +/* test for NS-UNBLOCK re-transmissions */ +testcase TC_ns_unblock_retrans() runs on RAW_Test_CT { + f_init_ns_codec(mp_nsconfig); + f_init_pcuif(); + + /* Expect inbound NS-RESET procedure */ + as_rx_ns_reset_ack(oneshot := true); + + /* keep it alive */ + activate(as_rx_alive_tx_ack()); + + /* wait for first NS-UNBLOCK, don't respond */ + NSCP[0].receive(t_NS_UNBLOCK); + + /* wait for re-transmission of NS-UNBLOCK */ + as_rx_ns_unblock_ack(oneshot := true); + setverdict(pass); + f_clean_ns_codec(); +} + +/* full bring-up of the Gb link for NS and BSSGP layer up to BVC-FC */ +testcase TC_ns_full_bringup() runs on RAW_Test_CT { + f_init_ns_codec(mp_nsconfig); + f_init_pcuif(); + + /* Expect inbound NS-RESET procedure */ + as_rx_ns_reset_ack(oneshot := true); + + /* keep it alive */ + activate(as_rx_alive_tx_ack()); + + as_rx_ns_unblock_ack(oneshot := true); + + f_outgoing_ns_alive(); + + /* Expect BVC-RESET for signaling (0) and ptp BVCI */ + as_rx_bvc_reset_tx_ack(0, omit, omit, oneshot := true); + as_rx_bvc_reset_tx_ack(mp_gb_cfg.bvc[0].bvci, mp_gb_cfg.bvc[0].cell_id, omit, oneshot := true); + as_rx_bvc_unblock_tx_ack(mp_gb_cfg.bvc[0].bvci, oneshot := true); + + /* wait for one FLOW-CONTROL BVC and then ACK any further in the future */ + as_rx_bvc_fc_tx_ack(mp_gb_cfg.bvc[0].bvci, oneshot := true); + activate(as_rx_bvc_fc_tx_ack(mp_gb_cfg.bvc[0].bvci)); + setverdict(pass); + f_clean_ns_codec(); +} + +/* test outbound (SGSN-originated) NS-BLOCK procedure */ +testcase TC_ns_so_block() runs on RAW_Test_CT { + f_init_ns_codec(mp_nsconfig); + f_init_pcuif(); + + /* Expect inbound NS-RESET procedure */ + as_rx_ns_reset_ack(oneshot := true); + + /* keep it alive */ + activate(as_rx_alive_tx_ack()); + + as_rx_ns_unblock_ack(oneshot := true); + + f_outgoing_ns_alive(); + + f_outgoing_ns_block(NS_CAUSE_EQUIPMENT_FAILURE); + setverdict(pass); + f_clean_ns_codec(); +} + + +control { + execute( TC_ns_reset() ); + execute( TC_ns_reset_retrans() ); + execute( TC_ns_alive() ); + execute( TC_ns_alive_timeout_reset() ); + execute( TC_ns_unblock() ); + execute( TC_ns_unblock_retrans() ); + execute( TC_ns_full_bringup() ); + execute( TC_ns_so_block() ); +} + +} diff --git a/pcu/PCU_Tests_RAW.ttcn b/pcu/PCU_Tests_RAW.ttcn deleted file mode 100644 index af1ef99d..00000000 --- a/pcu/PCU_Tests_RAW.ttcn +++ /dev/null @@ -1,1067 +0,0 @@ -module PCU_Tests_RAW { - -/* "RAW" PCU tests: Talk directly to the PCU socket of OsmoPCU on the one hand side (emulating - the BTS/BSC side PCU socket server) and the Gb interface on the other hand side. No NS/BSSGP - Emulation is used; rather, we simply use the NS_CodecPort to implement both standard and non- - standard procedures on the NS and BSSGP level. The goal of these tests is to test exactly - those NS and BSSGP implementations on the BSS (PCU) side. */ - -/* (C) 2018-2019 Harald Welte <laforge@gnumonks.org> - * (C) 2019 Vadim Yanitskiy <axilirator@gmail.com> - * 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 GSM_Types all; -import from GSM_RR_Types all; - -import from RLCMAC_CSN1_Types all; -import from RLCMAC_Types all; - -import from NS_Types all; -import from BSSGP_Types all; -import from Osmocom_Gb_Types all; - -import from BSSGP_Emulation all; /* BssgpConfig */ -import from NS_Emulation all; /* NSConfiguration */ - -import from UD_Types all; -import from PCUIF_Types all; -import from PCUIF_CodecPort all; -import from PCUIF_RAW_Components all; -import from IPL4asp_Types all; -import from NS_CodecPort all; -import from NS_CodecPort_CtrlFunct all; -import from Native_Functions all; -import from PCU_Tests all; - -modulepar { - charstring mp_pcu_sock_path := PCU_SOCK_DEFAULT; -} - -type component RAW_NS_CT { - /* UDP port towards the bottom (IUT) */ - port NS_CODEC_PT NSCP[4]; - var ConnectionId g_ns_conn_id[4] := {-1, -1, -1, -1}; - var NSConfiguration g_nsconfig[4]; - timer g_T_guard; -} - -type component RAW_PCU_CT { - /* PCUIF (we emulate the BTS part) */ - port PCUIF_CODEC_PT PCU; - var ConnectionId g_pcu_conn_id := -1; -} - -type component RAW_Test_CT extends RAW_NS_CT, RAW_PCU_CT { -} - -private altstep as_Tguard() runs on RAW_NS_CT { - [] g_T_guard.timeout { - setverdict(fail, "Timeout of T_guard"); - mtc.stop; - } -} - -/* FIXME: make sure to use parameters from mp_gb_cfg.cell_id in the PCU INFO IND */ -template (value) PCUIF_info_ind ts_PCUIF_INFO_default := { - version := PCU_IF_VERSION, - flags := c_PCUIF_Flags_default, - trx := valueof(ts_PCUIF_InfoTrxs_def), - bsic := 7, - mcc := 262, - mnc := 42, - mnc_3_digits := 0, - lac := 13135, - rac := 0, - nsei := mp_nsconfig.nsei, - nse_timer := { 3, 3, 3, 3, 30, 3, 10 }, - cell_timer := { 3, 3, 3, 3, 3, 10, 3, 10, 3, 10, 3 }, - cell_id := 20960, - repeat_time := 5 * 50, - repeat_count := 3, - bvci := mp_gb_cfg.bvci, - t3142 := 20, - t3169 := 5, - t3191 := 5, - t3193_10ms := 160, - t3195 := 5, - t3101 := 10, - t3103 := 4, - t3105 := 8, - cv_countdown := 15, - dl_tbf_ext := 250 * 10, /* ms */ - ul_tbf_ext := 250 * 10, /* ms */ - initial_cs := 2, - initial_mcs := 6, - nsvci := { mp_nsconfig.nsvci, 0 }, - local_pprt := { mp_nsconfig.remote_udp_port, 0 }, - remote_port := { mp_nsconfig.local_udp_port, 0 }, - remote_ip := { f_inet_haddr(mp_nsconfig.local_ip) , '00000000'O } -} - -function f_init_pcuif() runs on RAW_PCU_CT { - var PCUIF_info_ind info_ind; - map(self:PCU, system:PCU); - - - info_ind := valueof(ts_PCUIF_INFO_default); - - /* Connect the Unix Domain Socket */ - g_pcu_conn_id := f_pcuif_listen(PCU, mp_pcu_sock_path); - PCU.receive(UD_connected:?); - - /* Wait for PCU_VERSION and return INFO_IND */ - PCU.receive(t_SD_PCUIF(g_pcu_conn_id, tr_PCUIF_TXT_IND(0, PCU_VERSION, ?))); - /* FIXME: make sure to use parameters from mp_gb_cfg.cell_id in the PCU INFO IND */ - var template PCUIF_Message info_ind_msg := ts_PCUIF_INFO_IND(0, info_ind); - PCU.send(t_SD_PCUIF(g_pcu_conn_id, info_ind_msg)); -} - -function f_pcuif_tx(template (value) PCUIF_Message msg) runs on RAW_PCU_CT { - PCU.send(t_SD_PCUIF(g_pcu_conn_id, msg)); -} - -function f_init_ns_codec(integer idx := 0, float guard_secs := 60.0) 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) or not isbound(g_nsconfig[idx])) { - /* copy most parts from mp_nsconfig */ - g_nsconfig[idx] := mp_nsconfig; - /* adjust those parts different for each NS-VC */ - g_nsconfig[idx].nsvci := mp_nsconfig.nsvci + idx; - g_nsconfig[idx].local_udp_port := mp_nsconfig.local_udp_port + idx; - } - - map(self:NSCP[idx], system:NSCP); - /* Connect the UDP socket */ - log("connecting NSCP[", idx, "] to ", g_nsconfig[idx]); - res := f_IPL4_connect(NSCP[idx], g_nsconfig[idx].remote_ip, g_nsconfig[idx].remote_udp_port, - g_nsconfig[idx].local_ip, g_nsconfig[idx].local_udp_port, 0, { udp := {}}); - if (not ispresent(res.connId)) { - setverdict(fail, "Could not connect NS UDP socket, check your configuration ", g_nsconfig[idx]); - mtc.stop; - } - g_ns_conn_id[idx] := res.connId; - -} - -function f_ns_exp(template PDU_NS exp_rx, integer idx := 0) runs on RAW_NS_CT return PDU_NS { - var NS_RecvFrom nrf; - log("f_ns_exp() expecting ", exp_rx); - alt { - [] NSCP[idx].receive(t_NS_RecvFrom(exp_rx)) -> value nrf { } - [] NSCP[idx].receive { - setverdict(fail, "Received unexpected NS: ", nrf); - mtc.stop; - } - } - return nrf.msg; -} - -/* perform outbound NS-ALIVE procedure */ -function f_outgoing_ns_alive(integer idx := 0) runs on RAW_NS_CT { - NSCP[idx].send(t_NS_Send(g_ns_conn_id[idx], t_NS_ALIVE)); - alt { - [] NSCP[idx].receive(t_NS_RecvFrom(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_Send(g_ns_conn_id[idx], t_NS_ALIVE)); - T.start; - alt { - [] NSCP[idx].receive(t_NS_RecvFrom(t_NS_ALIVE_ACK)) { - setverdict(fail, "Received unexpected NS-ALIVE ACK"); - } - [] NSCP[idx].receive { repeat; } - [] T.timeout { - setverdict(pass); - } - } -} - -/* ensure no matching message is received within 'tout' */ -function f_ensure_no_ns(template PDU_NS ns := ?, integer idx := 0, float tout := 3.0) -runs on RAW_Test_CT { - timer T := tout; - T.start; - alt { - [] NSCP[idx].receive(t_NS_RecvFrom(ns)) { - setverdict(fail, "NS-ALIVE from unconfigured (possibly initial) endpoint"); - } - [] T.timeout { - setverdict(pass); - } - } -} - -/* perform outbound NS-BLOCK procedure */ -function f_outgoing_ns_block(NsCause cause, integer idx := 0) runs on RAW_NS_CT { - NSCP[idx].send(t_NS_Send(g_ns_conn_id[idx], ts_NS_BLOCK(cause, g_nsconfig[idx].nsvci))); - alt { - [] NSCP[idx].receive(t_NS_RecvFrom(tr_NS_BLOCK_ACK(g_nsconfig[idx].nsvci))); - [] 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_RecvFrom(t_NS_ALIVE)) { - NSCP[idx].send(t_NS_Send(g_ns_conn_id[idx], 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, 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, - mp_gb_cfg.cell_id)); - timer T := 5.0; - NSCP[idx].send(t_NS_Send(g_ns_conn_id[idx], ts_NS_UNITDATA(t_SduCtrlB, 0, enc_PDU_BSSGP(bssgp_tx)))); - T.start; - alt { - [exp_ack] NSCP[idx].receive(t_NS_RecvFrom(tr_NS_UNITDATA(t_SduCtrlB, 0, - decmatch tr_BVC_RESET_ACK(bvci, ?)))) { - 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, boolean oneshot := false, integer idx := 0) runs on RAW_NS_CT { - var NS_RecvFrom ns_rf; - /* FIXME: nail down received cell_id in match */ - [] NSCP[idx].receive(t_NS_RecvFrom(tr_NS_UNITDATA(t_SduCtrlB, 0, - decmatch tr_BVC_RESET(?, bvci, ?)))) - -> value ns_rf { - var PDU_BSSGP bssgp_rx := dec_PDU_BSSGP(ns_rf.msg.pDU_NS_Unitdata.nS_SDU); - var PDU_BSSGP bssgp_tx := valueof(ts_BVC_RESET_ACK(bvci, mp_gb_cfg.cell_id)); - NSCP[idx].send(t_NS_Send(g_ns_conn_id[idx], 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 NS_RecvFrom ns_rf; - [] NSCP[idx].receive(t_NS_RecvFrom(tr_NS_UNITDATA(t_SduCtrlB, 0, - decmatch t_BVC_UNBLOCK(bvci)))) - -> value ns_rf { - var PDU_BSSGP bssgp_rx := dec_PDU_BSSGP(ns_rf.msg.pDU_NS_Unitdata.nS_SDU); - var PDU_BSSGP bssgp_tx := valueof(t_BVC_UNBLOCK_ACK(bvci)); - NSCP[idx].send(t_NS_Send(g_ns_conn_id[idx], 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 NS_RecvFrom ns_rf; - [] NSCP[idx].receive(t_NS_RecvFrom(tr_NS_UNITDATA(t_SduCtrlB, bvci, - decmatch tr_BVC_FC_BVC))) - -> value ns_rf { - var PDU_BSSGP bssgp_rx := dec_PDU_BSSGP(ns_rf.msg.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(t_NS_Send(g_ns_conn_id[idx], 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 */ -private altstep as_rx_ns_reset_ack(boolean oneshot := false, integer idx := 0) runs on RAW_NS_CT { - var NS_RecvFrom ns_rf; - [] NSCP[idx].receive(t_NS_RecvFrom(tr_NS_RESET(NS_CAUSE_OM_INTERVENTION, g_nsconfig[idx].nsvci, - g_nsconfig[idx].nsei))) -> value ns_rf { - NSCP[idx].send(t_NS_Send(g_ns_conn_id[idx], ts_NS_RESET_ACK(g_nsconfig[idx].nsvci, - g_nsconfig[idx].nsei))); - if (not oneshot) { repeat; } - } -} -/* Receive a NS-UNBLOCK and ACK it */ -private altstep as_rx_ns_unblock_ack(boolean oneshot := false, integer idx := 0) runs on RAW_NS_CT { - var NS_RecvFrom ns_rf; - [] NSCP[idx].receive(t_NS_RecvFrom(t_NS_UNBLOCK)) -> value ns_rf { - NSCP[idx].send(t_NS_Send(g_ns_conn_id[idx], t_NS_UNBLOCK_ACK)); - if (not oneshot) { repeat; } - } -} - -/* test the NS-RESET procedure */ -testcase TC_ns_reset() runs on RAW_Test_CT { - f_init_ns_codec(); - f_init_pcuif(); - - - /* Expect inbound NS-RESET procedure */ - as_rx_ns_reset_ack(oneshot := true); - setverdict(pass); -} - -/* ensure NS-RESET are re-transmitted */ -testcase TC_ns_reset_retrans() runs on RAW_Test_CT { - f_init_ns_codec(); - f_init_pcuif(); - - var integer i; - for (i := 0; i < 3; i := i+1) { - NSCP[0].receive(t_NS_RecvFrom(tr_NS_RESET(NS_CAUSE_OM_INTERVENTION, - g_nsconfig[0].nsvci, g_nsconfig[0].nsei))); - } - - /* Expect inbound NS-RESET procedure */ - as_rx_ns_reset_ack(oneshot := true); - setverdict(pass); -} - -/* test the inbound NS-ALIVE procedure after NS-RESET */ -testcase TC_ns_alive() runs on RAW_Test_CT { - f_init_ns_codec(); - f_init_pcuif(); - - /* Expect inbound NS-RESET procedure */ - as_rx_ns_reset_ack(oneshot := true); - - /* wait for one ALIVE cycle, then ACK any further ALIVE in the background */ - as_rx_alive_tx_ack(oneshot := true); - setverdict(pass); -} - -/* Test for NS-RESET after NS-ALIVE timeout */ -testcase TC_ns_alive_timeout_reset() runs on RAW_Test_CT { - f_init_ns_codec(guard_secs := 100.0); - f_init_pcuif(); - - /* Expect inbound NS-RESET procedure */ - as_rx_ns_reset_ack(oneshot := true); - - /* wait for at least one NS-ALIVE */ - NSCP[0].receive(t_NS_RecvFrom(t_NS_ALIVE)); - - /* wait for NS-RESET to re-appear, ignoring any NS-ALIVE until then */ - alt { - [] as_rx_ns_reset_ack(oneshot := true) { setverdict(pass); } - [] NSCP[0].receive(t_NS_RecvFrom(t_NS_ALIVE)) { repeat; } - } -} - -/* test for NS-RESET/NS-ALIVE/NS-UNBLOCK */ -testcase TC_ns_unblock() runs on RAW_Test_CT { - f_init_ns_codec(); - f_init_pcuif(); - - /* Expect inbound NS-RESET procedure */ - as_rx_ns_reset_ack(oneshot := true); - - /* wait for one ALIVE cycle, then ACK any further ALIVE in the background */ - as_rx_alive_tx_ack(oneshot := true); - activate(as_rx_alive_tx_ack()); - - as_rx_ns_unblock_ack(oneshot := true); - setverdict(pass); -} - -/* test for NS-UNBLOCK re-transmissions */ -testcase TC_ns_unblock_retrans() runs on RAW_Test_CT { - f_init_ns_codec(); - f_init_pcuif(); - - /* Expect inbound NS-RESET procedure */ - as_rx_ns_reset_ack(oneshot := true); - - /* wait for one ALIVE cycle, then ACK any further ALIVE in the background */ - as_rx_alive_tx_ack(oneshot := true); - activate(as_rx_alive_tx_ack()); - - /* wait for first NS-UNBLOCK, don't respond */ - NSCP[0].receive(t_NS_RecvFrom(t_NS_UNBLOCK)); - - /* wait for re-transmission of NS-UNBLOCK */ - as_rx_ns_unblock_ack(oneshot := true); - setverdict(pass); -} - -/* full bring-up of the Gb link for NS and BSSGP layer up to BVC-FC */ -testcase TC_ns_full_bringup() runs on RAW_Test_CT { - f_init_ns_codec(); - f_init_pcuif(); - - /* Expect inbound NS-RESET procedure */ - as_rx_ns_reset_ack(oneshot := true); - - /* wait for one ALIVE cycle, then ACK any further ALIVE in the background */ - as_rx_alive_tx_ack(oneshot := true); - activate(as_rx_alive_tx_ack()); - - as_rx_ns_unblock_ack(oneshot := true); - - f_outgoing_ns_alive(); - - /* Expect BVC-RESET for signaling (0) and ptp BVCI */ - as_rx_bvc_reset_tx_ack(0, oneshot := true); - as_rx_bvc_reset_tx_ack(mp_gb_cfg.bvci, oneshot := true); - as_rx_bvc_unblock_tx_ack(mp_gb_cfg.bvci, oneshot := true); - - /* wait for one FLOW-CONTROL BVC and then ACK any further in the future */ - as_rx_bvc_fc_tx_ack(mp_gb_cfg.bvci, oneshot := true); - activate(as_rx_bvc_fc_tx_ack(mp_gb_cfg.bvci)); - setverdict(pass); -} - -/* test outbound (SGSN-originated) NS-BLOCK procedure */ -testcase TC_ns_so_block() runs on RAW_Test_CT { - f_init_ns_codec(); - f_init_pcuif(); - - /* Expect inbound NS-RESET procedure */ - as_rx_ns_reset_ack(oneshot := true); - - /* wait for one ALIVE cycle, then ACK any further ALIVE in the background */ - as_rx_alive_tx_ack(oneshot := true); - activate(as_rx_alive_tx_ack()); - - as_rx_ns_unblock_ack(oneshot := true); - - f_outgoing_ns_alive(); - - f_outgoing_ns_block(NS_CAUSE_EQUIPMENT_FAILURE); - setverdict(pass); -} - -type component RAW_PCU_Test_CT extends bssgp_CT { - /* Connection to the BTS component (one for now) */ - port RAW_PCU_MSG_PT BTS; - /* Connection to the PCUIF component */ - port RAW_PCU_MSG_PT PCUIF; - - /* Guard timeout */ - timer g_T_guard := 60.0; -}; - -private altstep as_Tguard_RAW() runs on RAW_PCU_Test_CT { - [] g_T_guard.timeout { - setverdict(fail, "Timeout of T_guard"); - mtc.stop; - } -} - -private function f_init_raw(charstring id, template (value) PCUIF_info_ind info_ind := ts_PCUIF_INFO_default) -runs on RAW_PCU_Test_CT { - var RAW_PCUIF_CT vc_PCUIF; - var RAW_PCU_BTS_CT vc_BTS; - - /* Start the guard timer */ - g_T_guard.start; - activate(as_Tguard_RAW()); - - /* Init PCU interface component */ - vc_PCUIF := RAW_PCUIF_CT.create("PCUIF-" & id); - connect(vc_PCUIF:MTC, self:PCUIF); - map(vc_PCUIF:PCU, system:PCU); - - /* Create one BTS component (we may want more some day) */ - vc_BTS := RAW_PCU_BTS_CT.create("BTS-" & id); - connect(vc_BTS:PCUIF, vc_PCUIF:BTS); - connect(vc_BTS:TC, self:BTS); - - vc_PCUIF.start(f_PCUIF_CT_handler(mp_pcu_sock_path)); - vc_BTS.start(f_BTS_CT_handler(0, valueof(info_ind))); - - /* Wait until the BTS is ready (SI13 negotiated) */ - BTS.receive(tr_RAW_PCU_EV(BTS_EV_SI13_NEGO)); -} - -/* FIXME: properly encode RA (see TS 24.060, table 11.2.5.2) */ -private function f_establish_tbf(out GsmRrMessage rr_imm_ass, uint8_t bts_nr := 0, - uint16_t ra := oct2int('3A'O), uint8_t is_11bit := 0, - PCUIF_BurstType burst_type := BURST_TYPE_0, - TimingAdvance ta := 0) -runs on RAW_PCU_Test_CT return boolean { - var PCUIF_Message pcu_msg; - var GsmRrMessage rr_msg; - var uint32_t fn; - timer T; - - /* FIXME: ask the BTS component to give us the current TDMA fn */ - fn := 1337 + ta; - - /* Send RACH.ind */ - log("Sending RACH.ind on fn=", fn, " with RA=", ra, ", TA=", ta); - BTS.send(ts_PCUIF_RACH_IND(bts_nr := bts_nr, - ra := ra, is_11bit := is_11bit, - burst_type := burst_type, - fn := fn, arfcn := 871, - qta := ta * 4)); - - /* Expect Immediate (TBF) Assignment on TS0/AGCH */ - T.start(2.0); - alt { - [] BTS.receive(tr_PCUIF_DATA_REQ(bts_nr := bts_nr, trx_nr := ?, ts_nr := 0, - sapi := PCU_IF_SAPI_AGCH, data := ?)) - -> value pcu_msg { - rr_imm_ass := dec_GsmRrMessage(pcu_msg.u.data_req.data); - log("Rx Immediate Assignment: ", rr_imm_ass); - - /* Make sure this assignment is for us - * TODO: Uplink or Downlink TBF? */ - if (match(rr_imm_ass, tr_IMM_TBF_ASS(?, ra, fn))) { - setverdict(pass); - return true; - } - - /* Not for us? Wait for more. */ - repeat; - } - [] BTS.receive { repeat; } - [] T.timeout { - setverdict(fail, "Timeout waiting for Immediate Assignment"); - } - } - - return false; -} - -private function f_imm_ass_verify_ul_tbf_ass(GsmRrMessage rr_imm_ass, out PacketUlAssign ul_tbf_ass) -runs on RAW_PCU_Test_CT return boolean { - - /* Make sure we received an UL TBF Assignment */ - if (match(rr_imm_ass, tr_IMM_TBF_ASS(dl := false, rest := tr_IaRestOctets_ULAss(?)))) { - ul_tbf_ass := rr_imm_ass.payload.imm_ass.rest_octets.hh.pa.uldl.ass.ul; - log("Rx Uplink TBF assignment: ", ul_tbf_ass); - setverdict(pass); - } else { - setverdict(fail, "Failed to match UL TBF Assignment"); - return false; - } - - /* Make sure we have got a TBF with Dynamic Block Allocation */ - if (ul_tbf_ass.dynamic == omit) { - setverdict(fail, "Single Block Allocation is not handled by ", testcasename()); - return false; - } - - return true; -} - -/* Enqueue DATA.ind (both TDMA frame and block numbers to be patched) */ -private function f_pcuif_tx_data_ind(octetstring data, int16_t lqual_cb := 0) -runs on RAW_PCU_Test_CT { - - BTS.send(ts_PCUIF_DATA_IND(bts_nr := 0, trx_nr := 0, ts_nr := 7, block_nr := 0, - sapi := PCU_IF_SAPI_PDTCH, data := data, - fn := 0, arfcn := 871, lqual_cb := lqual_cb)); - BTS.receive(tr_RAW_PCU_EV(TDMA_EV_PDTCH_BLOCK_SENT)); -} - -/* Enqueue RTS.req, expect DATA.req with UL ACK from the PCU */ -private function f_pcuif_rx_data_req(out PCUIF_Message pcu_msg) -runs on RAW_PCU_Test_CT { - BTS.send(ts_PCUIF_RTS_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 7, - sapi := PCU_IF_SAPI_PDTCH, fn := 0, - arfcn := 871, block_nr := 0)); - BTS.receive(tr_PCUIF_DATA_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 7, - sapi := PCU_IF_SAPI_PDTCH)) -> value pcu_msg; -} - -private function f_tx_rlcmac_ul_block(template (value) RlcmacUlBlock ul_data, int16_t lqual_cb := 0) -runs on RAW_PCU_Test_CT { - var octetstring data; - /* Encode the payload of DATA.ind */ - data := enc_RlcmacUlBlock(valueof(ul_data)); - data := f_pad_oct(data, 23, '00'O); /* CS-1 */ - - /* Enqueue DATA.ind (both TDMA frame and block numbers to be patched) */ - f_pcuif_tx_data_ind(data, lqual_cb); -} - -private function f_tx_rlcmac_ul_n_blocks(PacketUlAssign ul_tbf_ass, integer num_blocks := 1) -runs on RAW_PCU_Test_CT { - var template (value) RlcmacUlBlock ul_data := t_RLCMAC_UL_DATA( - tfi := ul_tbf_ass.dynamic.tfi_assignment, - cv := num_blocks - 1, /* num UL blocks to be sent (to be overridden in loop) */ - bsn := 0, /* TODO: what should be here? */ - blocks := { /* To be generated in loop */ }); - - /* HACK: patch missing TLLI; otherwise OsmoPCU rejects DATA.req */ - ul_data.data.tlli := '00000001'O; - - for (var integer i := 0; i < num_blocks; i := i + 1) { - /* Prepare a new UL block (CV, random payload) */ - ul_data.data.mac_hdr.countdown := (num_blocks - i - 1); - ul_data.data.blocks := { valueof(t_RLCMAC_LLCBLOCK(f_rnd_octstring(10))) }; - f_tx_rlcmac_ul_block(ul_data); - } -} - -private function f_rx_rlcmac_dl_block(out RlcmacDlBlock dl_block) -runs on RAW_PCU_Test_CT { - var PCUIF_Message pcu_msg; - f_pcuif_rx_data_req(pcu_msg); - dl_block := dec_RlcmacDlBlock(pcu_msg.u.data_req.data); -} - -private function f_rx_rlcmac_dl_block_exp_ack_nack(out RlcmacDlBlock dl_block) -runs on RAW_PCU_Test_CT { - f_rx_rlcmac_dl_block(dl_block); - if (not match(dl_block, tr_RLCMAC_ACK_NACK(ul_tfi := ?, tlli := ?))) { - setverdict(fail, "Failed to match Packet Uplink ACK / NACK"); - mtc.stop; - } -} - -private function f_rx_rlcmac_dl_block_exp_dummy(out RlcmacDlBlock dl_block) -runs on RAW_PCU_Test_CT { - f_rx_rlcmac_dl_block(dl_block); - if (not match(dl_block, tr_RLCMAC_DUMMY_CTRL())) { - setverdict(fail, "Failed to match Packet DUMMY DL"); - mtc.stop; - } -} - -testcase TC_pcuif_suspend() runs on RAW_PCU_Test_CT { - var octetstring ra_id := enc_RoutingAreaIdentification(mp_gb_cfg.cell_id.ra_id); - var GprsTlli tlli := 'FFFFFFFF'O; - timer T; - - /* Initialize NS/BSSGP side */ - f_init_bssgp(); - - /* Initialize the PCU interface abstraction */ - f_init_raw(testcasename()); - - /* Establish BSSGP connection to the PCU */ - f_bssgp_establish(); - - BTS.send(ts_PCUIF_SUSP_REQ(0, tlli, ra_id, 0)); - - T.start(2.0); - alt { - [] BSSGP_SIG[0].receive(tr_BSSGP_SUSPEND(tlli, mp_gb_cfg.cell_id.ra_id)) { - setverdict(pass); - } - [] T.timeout { - setverdict(fail, "Timeout waiting for BSSGP SUSPEND"); - } - } -} - -/* Test of correct Timing Advance at the time of TBF establishment - * (derived from timing offset of the Access Burst). */ -testcase TC_ta_rach_imm_ass() runs on RAW_PCU_Test_CT { - var GsmRrMessage rr_msg; - var boolean ok; - - /* Initialize the PCU interface abstraction */ - f_init_raw(testcasename()); - - /* We cannot send too many TBF requests in a short time because - * at some point the PCU will fail to allocate a new TBF. */ - for (var TimingAdvance ta := 0; ta < 64; ta := ta + 16) { - /* Establish an Uplink TBF (send RACH.ind with current TA) */ - ok := f_establish_tbf(rr_msg, bts_nr := 0, ta := ta); - if (not ok) { - setverdict(fail, "Failed to establish an Uplink TBF"); - mtc.stop; - } - - /* Make sure Timing Advance IE matches out expectations */ - if (match(rr_msg, tr_IMM_TBF_ASS(dl := false, ta := ta))) { - setverdict(pass); - } - } -} - -/* Verify that the PCU generates valid PTCCH/D messages - * while neither Uplink nor Downlink TBF is established. */ -testcase TC_ta_ptcch_idle() runs on RAW_PCU_Test_CT { - var PTCCHDownlinkMsg ptcch_msg; - var PCUIF_Message pcu_msg; - timer T; - - /* Initialize the PCU interface abstraction */ - f_init_raw(testcasename()); - - /* Sent an RTS.req for PTCCH/D */ - BTS.send(ts_PCUIF_RTS_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 7, - sapi := PCU_IF_SAPI_PTCCH, fn := 0, - arfcn := 871, block_nr := 0)); - T.start(5.0); - alt { - [] BTS.receive(tr_PCUIF_DATA_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 7, - sapi := PCU_IF_SAPI_PTCCH)) -> value pcu_msg { - log("Rx DATA.req message: ", pcu_msg); - setverdict(pass); - } - [] BTS.receive(PCUIF_Message:?) { repeat; } - [] T.timeout { - setverdict(fail, "Timeout waiting for a PTCCH/D block"); - mtc.stop; - } - } - - ptcch_msg := dec_PTCCHDownlinkMsg(pcu_msg.u.data_req.data); - log("Decoded PTCCH/D message: ", ptcch_msg); - - /* Make sure the message is encoded correctly - * TODO: do we expect all TA values to be equal '1111111'B? */ - if (not match(ptcch_msg, tr_PTCCHDownlinkMsg)) { - setverdict(fail, "Malformed PTCCH/D message"); - mtc.stop; - } -} - -/* Test of correct Timing Advance during an active Uplink TBF. - * - * Unlike the circuit-switched domain, Uplink transmissions on PDCH time-slots - * are not continuous and there can be long time gaps between them. This happens - * due to a bursty nature of packet data. The actual Timing Advance of a MS may - * significantly change between such rare Uplink transmissions, so GPRS introduces - * additional mechanisms to control Timing Advance, and thus reduce interference - * between neighboring TDMA time-slots. - * - * At the moment of Uplink TBF establishment, initial Timing Advance is measured - * from ToA (Timing of Arrival) of an Access Burst. This is covered by another - * test case - TC_ta_rach_imm_ass. In response to that Access Burst the network - * sends Immediate Assignment on AGCH, which _may_ contain Timing Advance Index - * among with the initial Timing Advance value. And here PTCCH comes to play. - * - * PTCCH is a unidirectional channel on which the network can instruct a sub-set - * of 16 MS (whether TBFs are active or not) to adjust their Timing Advance - * continuously. To ensure continuous measurements of the signal propagation - * delay, the MSs shall transmit Access Bursts on Uplink (PTCCH/U) on sub-slots - * defined by an assigned Timing Advance Index (see 3GPP TS 45.002). - * - * The purpose of this test case is to verify the assignment of Timing Advance - * Index, and the process of Timing Advance notification on PTCCH/D. The MTC - * first establishes several Uplink TBFs, but does not transmit any Uplink - * blocks on them. During 4 TDMA multi-frame periods the MTC is sending RACH - * indications to the PCU, checking the correctness of two received PTCCH/D - * messages (period of PTCCH/D is two multi-frames). - */ - -/* List of ToA values for Access Bursts to be sent on PTCCH/U, - * each ToA (Timing of Arrival) value is in units of 1/4 of - * a symbol (i.e. 1 symbol is 4 QTA units). */ -type record length(16) of int16_t PTCCH_TAI_ToA_MAP; -const PTCCH_TAI_ToA_MAP ptcch_toa_map_def := { - 0, 0, 0, 0, - 0, 0, 0, 0, - 0, 0, 0, 0, - 0, 0, 0, 0 -}; - -private altstep as_ta_ptcch(uint8_t bts_nr := 0, /* TODO: TRX / TS number */ - in PTCCH_TAI_ToA_MAP toa_map := ptcch_toa_map_def) -runs on RAW_PCU_Test_CT { - var RAW_PCU_Event event; - var integer ss; - - /* Send Access Bursts on PTCCH/U for every TA Index */ - [] BTS.receive(tr_RAW_PCU_EV(TDMA_EV_PTCCH_UL_BURST)) -> value event { - ss := f_tdma_ptcch_fn2ss(event.data.tdma_fn); - if (ss < 0) { mtc.stop; } /* Shall not happen */ - - log("Sending an Access Burst on PTCCH/U", - ", sub-slot=", ss, " (TAI)", - ", fn=", event.data.tdma_fn, - ", ToA=", toa_map[ss], " (QTA)"); - /* TODO: do we care about RA and burst format? */ - BTS.send(ts_PCUIF_RACH_IND(bts_nr := bts_nr, - ra := oct2int('3A'O), - is_11bit := 0, - burst_type := BURST_TYPE_0, - fn := event.data.tdma_fn, - arfcn := 871, - qta := toa_map[ss], - sapi := PCU_IF_SAPI_PTCCH)); - repeat; - } -} - -private function f_TC_ta_ptcch_ul_multi_tbf(in PTCCH_TAI_ToA_MAP ptcch_toa_map, - template PTCCHDownlinkMsg t_ta_msg) -runs on RAW_PCU_Test_CT { - var PTCCHDownlinkMsg ta_msg; - var PCUIF_Message pcu_msg; - timer T; - - /* First, send an RTS.req for the upcoming PTCCH/D block */ - BTS.send(ts_PCUIF_RTS_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 7, - sapi := PCU_IF_SAPI_PTCCH, fn := 0, - arfcn := 871, block_nr := 0)); - T.start(2.0); - alt { - /* Keep sending of Access Bursts during two multi-frames (period of PTCCH/D) - * with increasing ToA (Timing of Arrival) values: 0, 7, 14, 28, 35... */ - [] as_ta_ptcch(bts_nr := 0, toa_map := ptcch_toa_map); - /* In the end of 2nd multi-frame we should receive a PTCCH/D block */ - [] BTS.receive(tr_PCUIF_DATA_REQ(bts_nr := 0, trx_nr := 0, ts_nr := 7, - sapi := PCU_IF_SAPI_PTCCH)) -> value pcu_msg { - ta_msg := dec_PTCCHDownlinkMsg(pcu_msg.u.data_req.data); - log("Rx PTCCH/D message: ", ta_msg); - - /* Make sure Timing Advance values match our expectations */ - if (match(ta_msg, t_ta_msg)) { - setverdict(pass); - } else { - setverdict(fail, "PTCCH/D message does not match: ", t_ta_msg); - } - } - [] BTS.receive { repeat; } - [] T.timeout { - setverdict(fail, "Timeout waiting for a PTCCH/D block"); - mtc.stop; - } - } -} - -testcase TC_ta_ptcch_ul_multi_tbf() runs on RAW_PCU_Test_CT { - var template PacketUlAssign t_ul_tbf_ass; - var PacketUlAssign ul_tbf_ass[7]; - var GsmRrMessage rr_msg[7]; - var boolean ok; - - /* Initialize the PCU interface abstraction */ - f_init_raw(testcasename()); - - /* Enable forwarding of PTCCH/U TDMA events to us */ - BTS.send(ts_RAW_PCU_CMD(TDMA_CMD_ENABLE_PTCCH_UL_FWD)); - - /* Establish 7 Uplink TBFs (USF flag is 3 bits long, '111'B is reserved) */ - for (var integer i := 0; i < 7; i := i + 1) { - ok := f_establish_tbf(rr_msg[i], ta := 0); - if (not ok) { - setverdict(fail, "Failed to establish an Uplink TBF #", i); - mtc.stop; - } - - /* Make sure we received an UL TBF Assignment */ - if (match(rr_msg[i], tr_IMM_TBF_ASS(dl := false, rest := tr_IaRestOctets_ULAss(?)))) { - ul_tbf_ass[i] := rr_msg[i].payload.imm_ass.rest_octets.hh.pa.uldl.ass.ul; - log("Rx Uplink TBF assignment for #", i, ": ", ul_tbf_ass[i]); - } else { - setverdict(fail, "Failed to match UL TBF Assignment for #", i); - mtc.stop; - } - - /* We expect incremental TFI/USF assignment (dynamic allocation) */ - t_ul_tbf_ass := tr_PacketUlDynAssign(tfi := i, usf := i); - if (not match(ul_tbf_ass[i], t_ul_tbf_ass)) { - setverdict(fail, "Failed to match Packet Uplink Assignment for #", i); - mtc.stop; - } - - /* We also expect Timing Advance Index to be a part of the assignment */ - if (ul_tbf_ass[i].dynamic.ta_index != i) { - setverdict(fail, "Failed to match Timing Advance Index for #", i); - /* Keep going, the current OsmoPCU does not assign TA Index */ - } - } - - /* Prepare a list of ToA values for Access Bursts to be sent on PTCCH/U */ - var PTCCH_TAI_ToA_MAP toa_map := ptcch_toa_map_def; - for (var integer i := 0; i < 7; i := i + 1) { - /* ToA in units of 1/4 of a symbol */ - toa_map[i] := (i + 1) * 7 * 4; - } - - /* Now we have all 7 TBFs established in one-phase access mode, - * however we will not be sending any data on them. Instead, we - * will be sending RACH.ind on PTCCH/U during 4 multi-frame - * periods (TAI 0..8), and then will check two PTCCH/D blocks. - * - * Why not 4 TBFs at once? Because Uplink is delayed by 3 TDMA - * time-slots, so at the moment of scheduling a PTCCH/D block - * the PCU has odd number of PTCCH/U Access Bursts received. */ - f_TC_ta_ptcch_ul_multi_tbf(toa_map, tr_PTCCHDownlinkMsg( - tai0_ta := 7, tai1_ta := 14, tai2_ta := 21, - /* Other values are not known (yet) */ - tai3_ta := ?)); - f_TC_ta_ptcch_ul_multi_tbf(toa_map, tr_PTCCHDownlinkMsg( - tai0_ta := 7, tai1_ta := 14, tai2_ta := 21, - tai3_ta := 28, tai4_ta := 35, tai5_ta := 42, - /* Other values are out of our interest */ - tai6_ta := ?)); -} - -/* Default link quality adaptation (Coding Scheme) ranges: -/* CS1: ... 6 dB, CS2: 5 .. 8 dB, CS3: 7 .. 13 db, CS4: 12 ... dB */ -private template integer CS1_lqual_dB_range := (-infinity .. 6); -private template integer CS2_lqual_dB_range := (5 .. 8); -private template integer CS3_lqual_dB_range := (7 .. 13); -private template integer CS4_lqual_dB_range := (12 .. infinity); - -testcase TC_cs_lqual_ul_tbf() runs on RAW_PCU_Test_CT { - var GsmRrMessage rr_imm_ass; - var PacketUlAssign ul_tbf_ass; - var RlcmacDlBlock dl_block; - var PCUIF_Message pcu_msg; - var octetstring data; - var boolean ok; - - /* Initialize the PCU interface abstraction */ - f_init_raw(testcasename()); - - /* Establish an Uplink TBF */ - ok := f_establish_tbf(rr_imm_ass); - if (not ok) { - setverdict(fail, "Failed to establish TBF"); - mtc.stop; - } - - ok := f_imm_ass_verify_ul_tbf_ass(rr_imm_ass, ul_tbf_ass); - if (not ok) { - setverdict(fail, "Immediate Assignment not an Uplink TBF"); - mtc.stop; - } - - var template (value) RlcmacUlBlock ul_data := t_RLCMAC_UL_DATA( - tfi := ul_tbf_ass.dynamic.tfi_assignment, - cv := 15, /* 15 UL blocks to be sent (to be overridden in loop) */ - bsn := 0, /* TODO: what should be here? */ - blocks := { /* To be generated in loop */ }); - - /* HACK: patch missing TLLI; otherwise OsmoPCU rejects DATA.req */ - ul_data.data.tlli := '00000001'O; - - /* 16 UL blocks (0 .. 32 dB, step = 2 dB) */ - for (var integer i := 0; i < 16; i := i + 1) { - /* Prepare a new UL block (CV, random payload) */ - ul_data.data.mac_hdr.countdown := (15 - i); - ul_data.data.blocks := { valueof(t_RLCMAC_LLCBLOCK(f_rnd_octstring(10))) }; - - /* Link quality in dB and our CS1-4 expectations */ - var integer lqual := i * 2; - - /* Enqueue DATA.ind (both TDMA frame and block numbers to be patched) */ - log("Sending DATA.ind with link quality (dB): ", lqual); - f_tx_rlcmac_ul_block(ul_data, lqual * 10); - - /* Enqueue RTS.req, expect DATA.req with UL ACK from the PCU */ - f_rx_rlcmac_dl_block_exp_ack_nack(dl_block); - - log("Rx Packet Uplink ACK / NACK with Channel Coding Command: ", - dl_block.ctrl.payload.u.ul_ack_nack.gprs.ch_coding_cmd); - - /* Match the received Channel Coding Command */ - var template ChCodingCommand ch_coding; - select (lqual) { - case (CS1_lqual_dB_range) { ch_coding := CH_CODING_CS1; } - case (CS2_lqual_dB_range) { ch_coding := CH_CODING_CS2; } - case (CS3_lqual_dB_range) { ch_coding := CH_CODING_CS3; } - case (CS4_lqual_dB_range) { ch_coding := CH_CODING_CS4; } - } - - if (not match(dl_block.ctrl.payload.u.ul_ack_nack.gprs.ch_coding_cmd, ch_coding)) { - setverdict(fail, "Channel Coding does not match our expectations: ", ch_coding); - } else { - setverdict(pass); - } - } -} - -/* Verify PCU drops TBF after some time of inactivity. */ -testcase TC_t3169() runs on RAW_PCU_Test_CT { - var PCUIF_info_ind info_ind; - var GsmRrMessage rr_imm_ass; - var PacketUlAssign ul_tbf_ass; - var RlcmacDlBlock dl_block; - var PCUIF_Message pcu_msg; - var octetstring data; - var boolean ok; - var OCT4 tlli := '00000001'O; - - /* Initialize NS/BSSGP side */ - f_init_bssgp(); - - info_ind := valueof(ts_PCUIF_INFO_default); - /* Set timer to 1 sec (default 5) to speedup test: */ - info_ind.t3169 := 1; - - /* Initialize the PCU interface abstraction */ - f_init_raw(testcasename(), info_ind); - - /* Establish BSSGP connection to the PCU */ - f_bssgp_establish(); - f_bssgp_client_llgmm_assign('FFFFFFFF'O, tlli); - - /* Establish an Uplink TBF */ - ok := f_establish_tbf(rr_imm_ass); - if (not ok) { - setverdict(fail, "Failed to establish TBF"); - mtc.stop; - } - - ok := f_imm_ass_verify_ul_tbf_ass(rr_imm_ass, ul_tbf_ass); - if (not ok) { - setverdict(fail, "Immediate Assignment not an Uplink TBF"); - mtc.stop; - } - - /* Send one UL block and make sure it is ACKED fine */ - f_tx_rlcmac_ul_n_blocks(ul_tbf_ass, 1); - f_rx_rlcmac_dl_block_exp_ack_nack(dl_block); - /* UL block should be received in SGSN */ - BSSGP[0].receive(tr_BSSGP_UL_UD(tlli, mp_gb_cfg.cell_id)); - - /* Wait until T3169 fires (plus 1 extra sec to make sure) */ - f_sleep(int2float(info_ind.t3169) + 1.0); - - /* Send an UL block once again, the TBF should be gone by now so no ACK */ - f_tx_rlcmac_ul_n_blocks(ul_tbf_ass, 1); - f_rx_rlcmac_dl_block_exp_dummy(dl_block); -} - - -control { - execute( TC_ns_reset() ); - execute( TC_ns_reset_retrans() ); - execute( TC_ns_alive() ); - execute( TC_ns_alive_timeout_reset() ); - execute( TC_ns_unblock() ); - execute( TC_ns_unblock_retrans() ); - execute( TC_ns_full_bringup() ); - execute( TC_ns_so_block() ); - - execute( TC_pcuif_suspend() ); - execute( TC_ta_ptcch_idle() ); - execute( TC_ta_rach_imm_ass() ); - execute( TC_ta_ptcch_ul_multi_tbf() ); - execute( TC_cs_lqual_ul_tbf() ); - execute( TC_t3169() ); -} - - - - - - -} diff --git a/pcu/PCU_Tests_SNS.cfg b/pcu/PCU_Tests_SNS.cfg index 1419e1eb..bd0875bb 100644 --- a/pcu/PCU_Tests_SNS.cfg +++ b/pcu/PCU_Tests_SNS.cfg @@ -7,18 +7,58 @@ [LOGGING] [MODULE_PARAMETERS] -PCU_Tests.mp_nsconfig := { - local_ip := "127.0.0.1", - local_udp_port := 23000, - remote_ip := "127.0.0.1", - remote_udp_port := 22000, - nsvci := 1234, - nsei := 1234 +SGSN_Components.mp_nsconfig := { + nsei := 1234, + nsvc := { + { + provider := { + ip := { + address_family := AF_INET, + local_ip := "127.0.0.1", + local_udp_port := 23000, + remote_ip := "127.0.0.1", + remote_udp_port := 22000, + data_weight := 1, + signalling_weight := 1 + } + }, + nsvci := 1234 + }, + { + provider := { + ip := { + address_family := AF_INET, + local_ip := "127.0.0.1", + local_udp_port := 23001, + remote_ip := "127.0.0.1", + remote_udp_port := 22000, + data_weight := 1, + signalling_weight := 1 + } + }, + nsvci := 1234 + }, + { + provider := { + ip := { + address_family := AF_INET, + local_ip := "127.0.0.1", + local_udp_port := 23002, + remote_ip := "127.0.0.1", + remote_udp_port := 22000, + data_weight := 1, + signalling_weight := 1 + } + }, + nsvci := 1234 + } + } } +PCUIF_Types.mp_pcuif_version := 12 [TESTPORT_PARAMETERS] [MAIN_CONTROLLER] [EXECUTE] -PCU_Tests_RAW_SNS.control +PCU_Tests_SNS.control diff --git a/pcu/PCU_Tests_RAW_SNS.ttcn b/pcu/PCU_Tests_SNS.ttcn index 28dd6548..b90fe37e 100644 --- a/pcu/PCU_Tests_RAW_SNS.ttcn +++ b/pcu/PCU_Tests_SNS.ttcn @@ -1,4 +1,4 @@ -module PCU_Tests_RAW_SNS { +module PCU_Tests_SNS { /* Osmocom PCU test suite for IP Sub-Network-Service (SNS) in TTCN-3 * (C) 2018-2019 Harald Welte <laforge@gnumonks.org> @@ -11,169 +11,68 @@ module PCU_Tests_RAW_SNS { */ import from Osmocom_Types all; -import from PCU_Tests all; -import from PCU_Tests_RAW all; +import from Osmocom_VTY_Functions all; +import from PCU_Tests_NS all; +import from SGSN_Components all; import from Osmocom_Gb_Types all; -import from NS_CodecPort all; +import from NS_Emulation all; import from NS_Types all; +import from RAW_NS all; +import from BSSGP_Types all; /********************************************************************************** * Modern Gb/IP bring-up test cases using IP Sub-Network Service (SNS) **********************************************************************************/ -/* perform inbound SNS-SIZE procedure */ -function f_incoming_sns_size(template (omit) NsCause cause := omit, integer idx := 0) -runs on RAW_NS_CT { - log("f_incoming_sns_size(idx=", idx, ")"); - var PDU_NS rx; - /* expect one single SNS-SIZE with RESET flag; one remote v4 EP; no v6 EP */ - rx := f_ns_exp(tr_SNS_SIZE(g_nsconfig[idx].nsei, rst_flag := true, max_nsvcs := 8, - num_v4 := 4, num_v6 := omit), idx); - NSCP[idx].send(t_NS_Send(g_ns_conn_id[idx], ts_SNS_SIZE_ACK(g_nsconfig[idx].nsei, cause))); -} - -/* perform outbound SNS-SIZE procedure */ -function f_outgoing_sns_size(template (omit) NsCause cause := omit, integer idx:= 0) -runs on RAW_NS_CT { - log("f_outgoing_sns_size(idx=", idx, ")"); - var PDU_NS rx; - NSCP[idx].send(t_NS_Send(g_ns_conn_id[idx], ts_SNS_SIZE(g_nsconfig[idx].nsei, rst_flag := true, max_nsvcs := 1, - num_v4 := 1, num_v6 := omit) - )); - /* expect one single SNS-SIZE with RESET flag; one remote v4 EP; no v6 EP */ - rx := f_ns_exp(tr_SNS_SIZE_ACK(g_nsconfig[idx].nsei, cause), idx); -} - -/* perform inbound SNS-CONFIG procedure */ -function f_incoming_sns_config(template (omit) NsCause cause := omit, integer idx := 0) -runs on RAW_NS_CT { - log("f_incoming_sns_config(idx=", idx, ")"); - var PDU_NS rx; - var template IP4_Elements v4_elem := { tr_SNS_IPv4(mp_nsconfig.remote_ip, - mp_nsconfig.remote_udp_port) }; - rx := f_ns_exp(tr_SNS_CONFIG(g_nsconfig[idx].nsei, end_flag := true, v4 := v4_elem), idx); - NSCP[idx].send(t_NS_Send(g_ns_conn_id[idx], ts_SNS_CONFIG_ACK(g_nsconfig[idx].nsei, cause))); -} - -/* perform outbound SNS-CONFIG procedure */ -function f_outgoing_sns_config(template (omit) NsCause cause := omit, integer idx := 0) -runs on RAW_NS_CT { - log("f_outgoing_sns_config(idx=", idx, ")"); - var PDU_NS rx; - var template (omit) IP4_Elements v4 := { ts_SNS_IPv4(g_nsconfig[idx].local_ip, - g_nsconfig[idx].local_udp_port) } - NSCP[idx].send(t_NS_Send(g_ns_conn_id[idx], ts_SNS_CONFIG(g_nsconfig[idx].nsei, true, v4))); - rx := f_ns_exp(tr_SNS_CONFIG_ACK(g_nsconfig[idx].nsei, cause), idx); -} - -/* perform outbound SNS-CONFIG procedure (separate endpoints: 1 for control, 1 for user */ -function f_outgoing_sns_config_1c1u(template (omit) NsCause cause := omit, integer idx := 0) -runs on RAW_NS_CT { - log("f_outgoing_sns_config_1c1u(idx=", idx, ")"); - var PDU_NS rx; - var template (omit) IP4_Elements v4 := { ts_SNS_IPv4(g_nsconfig[0].local_ip, - g_nsconfig[0].local_udp_port, 1, 0), - ts_SNS_IPv4(g_nsconfig[1].local_ip, - g_nsconfig[1].local_udp_port, 0, 1) }; - NSCP[idx].send(t_NS_Send(g_ns_conn_id[idx], ts_SNS_CONFIG(g_nsconfig[idx].nsei, true, v4))); - rx := f_ns_exp(tr_SNS_CONFIG_ACK(g_nsconfig[idx].nsei, cause), idx); -} - -/* perform outbound SNS-CONFIG procedure (separate endpoints: 1 for control, 1 for user */ -function f_outgoing_sns_config_1c1u_separate(template (omit) NsCause cause := omit, integer idx := 0) -runs on RAW_NS_CT { - log("f_outgoing_sns_config_1c1u_separate(idx=", idx, ")"); - var PDU_NS rx; - var template (omit) IP4_Elements v4 := { ts_SNS_IPv4(g_nsconfig[1].local_ip, - g_nsconfig[1].local_udp_port, 1, 0), - ts_SNS_IPv4(g_nsconfig[2].local_ip, - g_nsconfig[2].local_udp_port, 0, 1) }; - NSCP[idx].send(t_NS_Send(g_ns_conn_id[idx], ts_SNS_CONFIG(g_nsconfig[idx].nsei, true, v4))); - rx := f_ns_exp(tr_SNS_CONFIG_ACK(g_nsconfig[idx].nsei, cause), idx); -} - -function f_outgoing_sns_add(integer idx_add, uint8_t w_sig := 1, uint8_t w_user := 1, integer idx := 0) -runs on RAW_NS_CT { - log("f_outgoing_sns_add(idx_add=", idx_add, ")"); - var PDU_NS rx; - var template (omit) IP4_Elements v4 := { ts_SNS_IPv4(g_nsconfig[idx_add].local_ip, - g_nsconfig[idx_add].local_udp_port, - w_sig, w_user) }; - NSCP[idx].send(t_NS_Send(g_ns_conn_id[idx], ts_SNS_ADD(g_nsconfig[idx].nsei, 23, v4))); - rx := f_ns_exp(tr_SNS_ACK(g_nsconfig[idx].nsei, 23, omit, v4)); -} - -function f_outgoing_sns_del(integer idx_del, uint8_t w_sig := 1, uint8_t w_user := 1, integer idx := 0) -runs on RAW_NS_CT { - log("f_outgoing_sns_del(idx_del=", idx_del, ")"); - var PDU_NS rx; - var template (omit) IP4_Elements v4 := { ts_SNS_IPv4(g_nsconfig[idx_del].local_ip, - g_nsconfig[idx_del].local_udp_port, - w_sig, w_user) }; - NSCP[idx].send(t_NS_Send(g_ns_conn_id[idx], ts_SNS_DEL(g_nsconfig[idx].nsei, 24, omit, v4))); - rx := f_ns_exp(tr_SNS_ACK(g_nsconfig[idx].nsei, 24, omit, v4)); -} - -function f_outgoing_sns_chg_weight(integer idx_chg, uint8_t w_sig, uint8_t w_user, integer idx := 0) -runs on RAW_NS_CT { - log("f_outgoing_sns_chg_weight(idx_chg=", idx_chg, ")"); - var PDU_NS rx; - var template (omit) IP4_Elements v4 := { ts_SNS_IPv4(g_nsconfig[idx_chg].local_ip, - g_nsconfig[idx_chg].local_udp_port, - w_sig, w_user) }; - NSCP[idx].send(t_NS_Send(g_ns_conn_id[idx], ts_SNS_CHG_WEIGHT(g_nsconfig[idx].nsei, 25, v4))); - rx := f_ns_exp(tr_SNS_ACK(g_nsconfig[idx].nsei, 25, omit, v4)); -} - - - - - /* PCU-originated SNS-SIZE: successful case */ testcase TC_sns_po_size_success() runs on RAW_Test_CT { - f_init_ns_codec(); + f_init_ns_codec(mp_nsconfig); f_init_pcuif(); f_incoming_sns_size(); f_sleep(1.0); setverdict(pass); + f_clean_ns_codec(); } /* PCU-originated SNS-SIZE: NACK from our side */ testcase TC_sns_po_size_nack() runs on RAW_Test_CT { - f_init_ns_codec(); + f_init_ns_codec(mp_nsconfig); f_init_pcuif(); - f_incoming_sns_size(NS_CAUSE_PROTOCOL_ERROR_UNSPEIFIED); + f_incoming_sns_size(NS_CAUSE_PROTOCOL_ERROR_UNSPECIFIED); /* FIXME: ensure we don't get a SNS-CONFIG */ /* FIXME: ensure we get re-transmitted SNS-SIZE attempts */ f_sleep(10.0); setverdict(pass); + f_clean_ns_codec(); } /* PCU-originated SNS-CONFIG: successful case */ testcase TC_sns_po_config_success() runs on RAW_Test_CT { - f_init_ns_codec(); + f_init_ns_codec(mp_nsconfig); f_init_pcuif(); f_incoming_sns_size(); f_incoming_sns_config(); f_sleep(1.0); setverdict(pass); + f_clean_ns_codec(); } /* PCU-originated SNS-CONFIG: successful case */ testcase TC_sns_po_config_nack() runs on RAW_Test_CT { - f_init_ns_codec(); + f_init_ns_codec(mp_nsconfig); f_init_pcuif(); f_incoming_sns_size(); - f_incoming_sns_config(NS_CAUSE_PROTOCOL_ERROR_UNSPEIFIED); + f_incoming_sns_config(NS_CAUSE_PROTOCOL_ERROR_UNSPECIFIED); /* FIXME: ensure we get re-transmitted SNS-CONFIG attempts */ f_sleep(10.0); setverdict(pass); + f_clean_ns_codec(); } /* SGSN-originated SNS-SIZE: successful case */ testcase TC_sns_so_config_success() runs on RAW_Test_CT { - f_init_ns_codec(); + f_init_ns_codec(mp_nsconfig); f_init_pcuif(); f_incoming_sns_size(); f_incoming_sns_config(); @@ -186,20 +85,21 @@ testcase TC_sns_so_config_success() runs on RAW_Test_CT { f_outgoing_ns_alive(); /* Expect BVC-RESET for signaling (0) and ptp BVCI */ - as_rx_bvc_reset_tx_ack(0, oneshot := true); - as_rx_bvc_reset_tx_ack(mp_gb_cfg.bvci, oneshot := true); - as_rx_bvc_unblock_tx_ack(mp_gb_cfg.bvci, oneshot := true); + as_rx_bvc_reset_tx_ack(0, omit, omit, oneshot := true); + as_rx_bvc_reset_tx_ack(mp_gb_cfg.bvc[0].bvci, mp_gb_cfg.bvc[0].cell_id, omit, oneshot := true); + as_rx_bvc_unblock_tx_ack(mp_gb_cfg.bvc[0].bvci, oneshot := true); /* wait for one FLOW-CONTROL BVC and then ACK any further in the future */ - as_rx_bvc_fc_tx_ack(mp_gb_cfg.bvci, oneshot := true); - activate(as_rx_bvc_fc_tx_ack(mp_gb_cfg.bvci)); + as_rx_bvc_fc_tx_ack(mp_gb_cfg.bvc[0].bvci, oneshot := true); + activate(as_rx_bvc_fc_tx_ack(mp_gb_cfg.bvc[0].bvci)); setverdict(pass); + f_clean_ns_codec(); } private function f_sns_bringup_1c1u(boolean sgsn_originated_reset := false) runs on RAW_Test_CT { /* Activate two NS codec ports */ - f_init_ns_codec(); - f_init_ns_codec(1); + f_init_ns_codec(mp_nsconfig); + f_init_ns_codec(mp_nsconfig, 1); f_init_pcuif(); /* Perform Size + BSS-originated config */ f_incoming_sns_size(); @@ -219,33 +119,44 @@ private function f_sns_bringup_1c1u(boolean sgsn_originated_reset := false) runs f_outgoing_ns_alive(1); if (sgsn_originated_reset) { - f_tx_bvc_reset_rx_ack(0); - f_tx_bvc_reset_rx_ack(mp_gb_cfg.bvci); + /* Expect BVC-RESET, but ignore it to prevent a race condition of BVC RESETs */ + var template PDU_NS pdu := tr_NS_UNITDATA(t_SduCtrlB, 0, decmatch tr_BVC_RESET(?, 0, omit)); + f_ns_exp(pdu); + /* SGSN originated BVC-RESET on an uninitialized signalling BVC */ + f_tx_bvc_reset_rx_ack(0, omit, omit); + + /* Expect BVC-RESET PTP BVC, but ignore it to prevent a race condition of BVC RESETs */ + pdu := tr_NS_UNITDATA(t_SduCtrlB, 0, decmatch tr_BVC_RESET(?, mp_gb_cfg.bvc[0].bvci, mp_gb_cfg.bvc[0].cell_id)); + f_ns_exp(pdu); + /* SGSN originated BVC-RESET on an uninitialized PTP BVC */ + f_tx_bvc_reset_rx_ack(mp_gb_cfg.bvc[0].bvci, omit, mp_gb_cfg.bvc[0].cell_id); } else { - /* Expect BVC-RESET for signaling (0) and ptp BVCI */ - as_rx_bvc_reset_tx_ack(0, oneshot := true); - as_rx_bvc_reset_tx_ack(mp_gb_cfg.bvci, oneshot := true); + /* Expect BVC-RESET for signaling BVCI=0 */ + as_rx_bvc_reset_tx_ack(0, omit, omit, oneshot := true); + /* Expect BVC-RESET from the PCU on PTP BVC */ + as_rx_bvc_reset_tx_ack(mp_gb_cfg.bvc[0].bvci, mp_gb_cfg.bvc[0].cell_id, omit, oneshot := true); } /* Expect UNBLOCK for ptp BVCI on signaling NS-VC (idx==0) */ - as_rx_bvc_unblock_tx_ack(mp_gb_cfg.bvci, oneshot := true); + as_rx_bvc_unblock_tx_ack(mp_gb_cfg.bvc[0].bvci, oneshot := true); /* wait for one FLOW-CONTROL BVC and then ACK any further in the future. Flow * control happens on the p-t-p BVCI and hence on index 1 */ - as_rx_bvc_fc_tx_ack(mp_gb_cfg.bvci, oneshot := true, idx := 1); - activate(as_rx_bvc_fc_tx_ack(mp_gb_cfg.bvci, idx := 1)); + as_rx_bvc_fc_tx_ack(mp_gb_cfg.bvc[0].bvci, oneshot := true, idx := 1); + activate(as_rx_bvc_fc_tx_ack(mp_gb_cfg.bvc[0].bvci, idx := 1)); } /* Test full IP-SNS bring-up with two NS-VCs, one sig-only and one user-only */ testcase TC_sns_1c1u() runs on RAW_Test_CT { f_sns_bringup_1c1u(); setverdict(pass); + f_clean_ns_codec(); } private function f_sns_bringup_1c1u_separate(boolean sgsn_originated_reset := false) runs on RAW_Test_CT { /* Activate two NS codec ports */ - f_init_ns_codec(); - f_init_ns_codec(1); - f_init_ns_codec(2); + f_init_ns_codec(mp_nsconfig); + f_init_ns_codec(mp_nsconfig, 1); + f_init_ns_codec(mp_nsconfig, 2); f_init_pcuif(); /* Perform Size + BSS-originated config */ f_incoming_sns_size(); @@ -269,20 +180,29 @@ private function f_sns_bringup_1c1u_separate(boolean sgsn_originated_reset := fa f_outgoing_ns_alive_no_ack(idx := 0); if (sgsn_originated_reset) { - f_tx_bvc_reset_rx_ack(0, idx := 1); - f_tx_bvc_reset_rx_ack(mp_gb_cfg.bvci, idx := 1); + /* Expect BVC-RESET, but ignore it to prevent a race condition of BVC RESETs */ + var template PDU_NS pdu := tr_NS_UNITDATA(t_SduCtrlB, 0, decmatch tr_BVC_RESET(?, 0, omit)); + f_ns_exp(pdu, idx := 1); + /* SGSN originated BVC-RESET on an uninitialized sign BVC */ + f_tx_bvc_reset_rx_ack(0, omit, omit, idx := 1); + + /* Expect BVC-RESET PTP BVC, but ignore it to prevent a race condition of BVC RESETs */ + pdu := tr_NS_UNITDATA(t_SduCtrlB, 0, decmatch tr_BVC_RESET(?, mp_gb_cfg.bvc[0].bvci, mp_gb_cfg.bvc[0].cell_id)); + f_ns_exp(pdu, idx := 1); + f_tx_bvc_reset_rx_ack(mp_gb_cfg.bvc[0].bvci, omit, mp_gb_cfg.bvc[0].cell_id, idx := 1); } else { - /* Expect BVC-RESET for signaling BVCI=0 and ptp BVCI */ - as_rx_bvc_reset_tx_ack(0, oneshot := true, idx := 1); - as_rx_bvc_reset_tx_ack(mp_gb_cfg.bvci, oneshot := true, idx := 1); + /* Expect BVC-RESET for signaling BVCI=0 */ + as_rx_bvc_reset_tx_ack(0, omit, omit, oneshot := true, idx := 1); + /* Expect BVC-RESET from the PCU on PTP BVC */ + as_rx_bvc_reset_tx_ack(mp_gb_cfg.bvc[0].bvci, mp_gb_cfg.bvc[0].cell_id, omit, oneshot := true, idx := 1); } /* Expect UNBLOCK for ptp BVCI on signaling NS-VC (idx==1) */ - as_rx_bvc_unblock_tx_ack(mp_gb_cfg.bvci, oneshot := true, idx := 1); + as_rx_bvc_unblock_tx_ack(mp_gb_cfg.bvc[0].bvci, oneshot := true, idx := 1); /* wait for one FLOW-CONTROL BVC and then ACK any further in the future. Flow * control happens on the p-t-p BVCI and hence on index 1 */ - as_rx_bvc_fc_tx_ack(mp_gb_cfg.bvci, oneshot := true, idx := 2); - activate(as_rx_bvc_fc_tx_ack(mp_gb_cfg.bvci, idx := 2)); + as_rx_bvc_fc_tx_ack(mp_gb_cfg.bvc[0].bvci, oneshot := true, idx := 2); + activate(as_rx_bvc_fc_tx_ack(mp_gb_cfg.bvc[0].bvci, idx := 2)); } /* Test full IP-SNS bring-up with two NS-VCs, one sig-only and one user-only - and where @@ -290,6 +210,7 @@ private function f_sns_bringup_1c1u_separate(boolean sgsn_originated_reset := fa testcase TC_sns_1c1u_separate() runs on RAW_Test_CT { f_sns_bringup_1c1u_separate(); setverdict(pass); + f_clean_ns_codec(); } /* Test full IP-SNS bring-up with two NS-VCs, one sig-only and one user-only and use @@ -297,14 +218,24 @@ testcase TC_sns_1c1u_separate() runs on RAW_Test_CT { testcase TC_sns_1c1u_so_bvc_reset() runs on RAW_Test_CT { f_sns_bringup_1c1u_separate(sgsn_originated_reset := true); setverdict(pass); + f_clean_ns_codec(); +} + +/* Test full IP_SNS bring-up over an initial NS-VC with two NS-VCs */ +testcase TC_sns_1c1u_unconfigured_nsvc() runs on RAW_Test_CT { + f_init_vty(testcasename()); + f_sns_bringup_1c1u_separate(); + f_vty_transceive_not_match(PCUVTY, "show ns entities", pattern "*UNCONFIGURED*"); + setverdict(pass); + f_clean_ns_codec(); } /* Transmit BVC-RESET before NS-ALIVE of PCU was ACKed: expect no response */ testcase TC_sns_1c1u_so_bvc_reset_too_early() runs on RAW_Test_CT { /* Activate two NS codec ports */ - f_init_ns_codec(); - f_init_ns_codec(1); - f_init_ns_codec(2); + f_init_ns_codec(mp_nsconfig); + f_init_ns_codec(mp_nsconfig, 1); + f_init_ns_codec(mp_nsconfig, 2); f_init_pcuif(); /* Perform Size + BSS-originated config */ f_incoming_sns_size(); @@ -321,16 +252,56 @@ testcase TC_sns_1c1u_so_bvc_reset_too_early() runs on RAW_Test_CT { f_outgoing_ns_alive_no_ack(idx := 0); /* Transmit BVC-RESET and expect no ACK*/ - f_tx_bvc_reset_rx_ack(0, idx := 1, exp_ack := false); - f_tx_bvc_reset_rx_ack(mp_gb_cfg.bvci, idx := 1, exp_ack := false); + f_tx_bvc_reset_rx_ack(0, omit, omit, idx := 1, exp_ack := false); + f_tx_bvc_reset_rx_ack(mp_gb_cfg.bvc[0].bvci, omit, mp_gb_cfg.bvc[0].cell_id, idx := 1, exp_ack := false); + f_clean_ns_codec(); +} + +/* Do an SGSN originated BSSGP-Reset of a not-configured BVCI. + * + * PCU -X SGSN: BVCI 0 BSSGP-RESET (ignores reset) + * PCU <- SGSN: BVCI 0 BSSGP-RESET + * PCU -> SGSN: BVCI 0 BSSGP-RESET-ACK (with cell information) + * PCU -X SGSN: BVCI 23 BSSGP-RESET (ignores reset, 23 is configured on PCU, 24 is not configured) + * PCU <- SGSN: BVCI 24 BSSGP-RESET (unconfigured BVCI) + * PCU -> SGSN: BVCI 24 BSSGP-STATUS Unknown BVCI + */ +testcase TC_sns_so_bvc_reset_unknown_bvci() runs on RAW_Test_CT { + g_handle_rx_alive := true; + f_init_ns_codec(mp_nsconfig); + f_init_pcuif(); + f_incoming_sns_size(); + f_incoming_sns_config(); + f_outgoing_sns_config(); + + /* Expect BVC-RESET, but ignore it to prevent a race condition of BVC RESETs */ + var template PDU_NS pdu := tr_NS_UNITDATA(t_SduCtrlB, 0, decmatch tr_BVC_RESET(?, 0, omit)); + f_ns_exp(pdu, idx := 0); + /* SGSN originated BVC-RESET on an uninitialized sign BVC */ + f_tx_bvc_reset_rx_ack(0, omit, omit, idx := 0); + + /* Expect BVC-RESET PTP BVC, but ignore it to prevent a race condition of BVC RESETs */ + pdu := tr_NS_UNITDATA(t_SduCtrlB, 0, decmatch tr_BVC_RESET(?, mp_gb_cfg.bvc[0].bvci, mp_gb_cfg.bvc[0].cell_id)); + f_ns_exp(pdu); + + /* Send a BVC-RESET on the wrong BVC */ + var BssgpCellId cell_id := mp_gb_cfg.bvc[0].cell_id; + cell_id.cell_id := cell_id.cell_id + 1; + var PDU_BSSGP bssgp_tx := valueof(ts_BVC_RESET(BSSGP_CAUSE_NET_SV_CAP_MOD_GT_ZERO_KBPS, + mp_gb_cfg.bvc[0].bvci + 1, cell_id)); + NSCP[0].send(ts_NS_UNITDATA(t_SduCtrlB, 0, enc_PDU_BSSGP(bssgp_tx))); + NSCP[0].receive(tr_NS_UNITDATA(t_SduCtrlB, 0, decmatch tr_BSSGP_STATUS(mp_gb_cfg.bvc[0].bvci + 1, BSSGP_CAUSE_BVCI_UNKNOWN, *))); + setverdict(pass); + + f_clean_ns_codec(); } /* Test adding new IP endpoints at runtime */ testcase TC_sns_add() runs on RAW_Test_CT { f_sns_bringup_1c1u(); - /* crate another NS codec port on the tester side */ - f_init_ns_codec(2); + /* create another NS codec port on the tester side */ + f_init_ns_codec(mp_nsconfig, 2); f_outgoing_sns_add(idx_add := 2, w_sig := 0, w_user := 1, idx := 0); @@ -339,8 +310,17 @@ testcase TC_sns_add() runs on RAW_Test_CT { activate(as_rx_alive_tx_ack(idx := 2)); f_outgoing_ns_alive(2); - /* TODO: Should we expect FLOW-CONTROL BVC here too? */ setverdict(pass); + f_clean_ns_codec(); +} + +/* Test adding an already present IP endpoint at runtime */ +testcase TC_sns_add_nack() runs on RAW_Test_CT { + f_sns_bringup_1c1u(); + + f_outgoing_sns_add(idx_add := 0, w_sig := 0, w_user := 1, idx := 0, cause := NS_CAUSE_PROTOCOL_ERROR_UNSPECIFIED); + setverdict(pass); + f_clean_ns_codec(); } /* Test deleting IP endpoints at runtime */ @@ -350,6 +330,7 @@ testcase TC_sns_del() runs on RAW_Test_CT { f_outgoing_sns_del(idx_del := 1, w_sig := 0, w_user := 1, idx := 0); /* FIXME: ensure we don't receive anything on just-deleted NS-VC anymore */ setverdict(pass); + f_clean_ns_codec(); } /* Test changing weights at runtime */ @@ -359,6 +340,7 @@ testcase TC_sns_chg_weight() runs on RAW_Test_CT { /* change w_user from 1 to 200 */ f_outgoing_sns_chg_weight(idx_chg := 1, w_sig := 0, w_user := 200, idx := 0); setverdict(pass); + f_clean_ns_codec(); } import from PCUIF_Types all; @@ -374,12 +356,14 @@ testcase TC_pcuif_rach() runs on RAW_Test_CT { f_sns_bringup_1c1u(); activate(as_pcu_activate()); - f_pcuif_tx(ts_PCUIF_RACH_IND(bts_nr:=0, ra:=23, is_11bit:=0, burst_type:=BURST_TYPE_0, + f_pcuif_tx(ts_PCUIF_RACH_IND(bts_nr:=0, trx_nr:=0, ts_nr:=0, ra:=23, + is_11bit:=0, burst_type:=BURST_TYPE_0, fn:=42, arfcn:=871, qta:=0)); PCU.receive(t_SD_PCUIF(g_pcu_conn_id, tr_PCUIF_DATA_REQ(bts_nr:=0, trx_nr:=0, ts_nr:=0, block_nr:=?, fn:=?, - sapi:=PCU_IF_SAPI_AGCH, data:=?))); + sapi:=PCU_IF_SAPI_AGCH_2, data:=?))); setverdict(pass); + f_clean_ns_codec(); } @@ -394,7 +378,10 @@ control { execute( TC_sns_1c1u_separate() ); execute( TC_sns_1c1u_so_bvc_reset() ); execute( TC_sns_1c1u_so_bvc_reset_too_early() ); + execute( TC_sns_1c1u_unconfigured_nsvc() ); + execute( TC_sns_so_bvc_reset_unknown_bvci() ); execute( TC_sns_add() ); + execute( TC_sns_add_nack() ); execute( TC_sns_del() ); execute( TC_sns_chg_weight() ); diff --git a/pcu/PCU_Tests_SNSv6.cfg b/pcu/PCU_Tests_SNSv6.cfg new file mode 100644 index 00000000..3093c2c4 --- /dev/null +++ b/pcu/PCU_Tests_SNSv6.cfg @@ -0,0 +1,36 @@ +[ORDERED_INCLUDE] +# Common configuration, shared between test suites +"../Common.cfg" +# testsuite specific configuration, not expected to change +"./PCU_Tests.default" + +[LOGGING] + +[MODULE_PARAMETERS] +SGSN_Components.mp_nsconfig := { + nsei := 1234, + nsvc : { + { + provider := { + ip := { + address_family := AF_INET6, + local_ip := "::1", + local_udp_port := 23000, + remote_ip := "::1", + remote_udp_port := 22000, + data_weight := 1, + signalling_weight := 1 + } + }, + nsvci := 1234 + } + } +} +PCUIF_Types.mp_pcuif_version := 12 + +[TESTPORT_PARAMETERS] + +[MAIN_CONTROLLER] + +[EXECUTE] +PCU_Tests_SNS.control diff --git a/pcu/PCU_selftest.ttcn b/pcu/PCU_selftest.ttcn new file mode 100644 index 00000000..a8bcaee7 --- /dev/null +++ b/pcu/PCU_selftest.ttcn @@ -0,0 +1,318 @@ +module PCU_selftest { +/* + * Osmocom PCU test suite in TTCN-3, selftest procedures + * (C) 2018-2019 Harald Welte <laforge@gnumonks.org> + * (C) 2020 by sysmocom s.f.m.c. GmbH <info@sysmocom.de> + * 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 BSSGP_Types all; +import from BSSGP_Emulation all; +import from NS_Types all; +import from NS_Emulation all; +import from GPRS_Context all; +import from Osmocom_Gb_Types all; +import from Osmocom_Types all; +import from LLC_Types all; +import from LLC_Templates all; +import from L3_Templates all; +import from GSM_RR_Types all; +import from RLCMAC_CSN1_Types all; +import from RLCMAC_Types all; +import from RLCMAC_Templates all; +import from GPRS_Components all; +import from PCU_Tests all; + +type component dummy_CT extends BSSGP_Client_CT { + var NS_CT ns_component; + var BSSGP_CT bssgp_component; + + var MmContext g_mmctx := { + tlli := 'FFFFFFFF'O, + n_u := 0 + }; + + var boolean g_initialized := false; +} + + +/////////////////// +// BSSGP selftest +/////////////////// +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)); +} + +///////////////// +// NS selftest +///////////////// +function f_ns_assert_prepr(in octetstring a, in octetstring b) { + log("NS Input: ", a); + log("NS Expected: ", b); + + if (a != b) { + setverdict(fail, "Values mismatch", a, b); + mtc.stop; + } 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); +} + +///////////////// +// LLC selftest +///////////////// +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, "LLC input ", b, " != expected ", a); + mtc.stop; + } 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; + const octetstring gmm_auth_req := '081200102198c72477ea104895e8b959acc58b108182'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)); +} + + +/////////////////// +// RLCMAC selftest +/////////////////// + +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"); + mtc.stop; + } +} + +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"); + mtc.stop; + } +} + +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"); + mtc.stop; + } +} + +testcase TC_selftest_rlcmac() runs on dummy_CT { + const octetstring c_gmm_att_pcu := '402400804000000000000000'O; + + var RlcmacDlCtrlBlock dcb; + var RlcmacUlCtrlBlock ucb; + + // Some octstrings are concatenated to avoid Atom editor hanging: https://github.com/karolwiniarski/language-ttcn-3/issues/3 + const octetstring c_dl_ul_ack_nack := '402400804000000000000000'O & '77628dbba14b2b2b2b2b2b'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 := '4008004000000000000000'O & '701000edc0000b2b2b2b2b2b'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); +} + +testcase TC_selftest_rlcmac_egprs() runs on RAW_PCU_Test_CT +{ + var octetstring data; + var CodingSchemeArray schemes := { + //MCS_0, + MCS_1, + MCS_2, + MCS_3, + MCS_4, + MCS_5, + MCS_6, + MCS_7, + MCS_8, + MCS_9 + }; + + /* Initialize the PCU interface abstraction */ + f_init_raw(testcasename()); + + log("Started Uplink test"); + for (var integer i := 0; i < sizeof(schemes); i := i+1) { + log("Testing Coding Schema ", schemes[i]); + var template (value) RlcmacUlBlock ul_data := t_RLCMAC_UL_EGPRS_DATA( + schemes[i], + tfi := 4, + cv := 1, /* num UL blocks to be sent (to be overridden in loop) */ + bsn1 := 2, /* TODO: what should be here? */ + blocks := { /* To be generated in loop */ }); + + ul_data.data_egprs.tlli := '00100101'O; + ul_data.data_egprs.blocks := { valueof(t_RLCMAC_LLCBLOCK_EGPRS('AABBCCDDEEFF00112233'O)) }; + + /* Encode the payload of DATA.ind */ + log("Encoding ", valueof(ul_data)); + data := enc_RlcmacUlBlock(valueof(ul_data)); + data := f_pad_oct(data, f_rlcmac_cs_mcs2block_len(schemes[i]), '00'O); + + /* Send to PCU so that we get gsmtap traces to verify with wireshark */ + f_pcuif_tx_data_ind(data); + + log("Decoding ", schemes[i]); + ul_data := dec_RlcmacUlBlock(data); + log("Decoded: ", ul_data); + } + log("Done Uplink test"); +} + +/////////////////// +// RR selftest +/////////////////// + +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)); +} + +} diff --git a/pcu/README.md b/pcu/README.md new file mode 100644 index 00000000..0a1d31f5 --- /dev/null +++ b/pcu/README.md @@ -0,0 +1,95 @@ +# PCU_Tests.ttcn + +* external interfaces + * Gb (emulates SGSN side NS/BSSGP) + * PCUIF: unix pcu socket (emulates BTS) + * VTY + * CTRL + * StatsD + +{% dot pcu_tests.svg +digraph G { + PCU [label="IUT\nosmo-pcu",shape="box", color=red]; + + subgraph cluster_ats { + label = "ATS\n(TTCN-3)"; + + system_PCU_PT [label="port system:PCU"]; + + subgraph cluster_RAW_PCU_Test_CT { + label = "RAW_PCU_Test_CT\n(PCU_Tests.ttcn)"; + + RAW_PCU_MSG_PT_PCUIF_A [label="port RAW_PCU_MSG_PT PCUIF\n(unused)"] + PCUVTY [label="PCUVTY"]; + StatsD_ConnHdlr [label="StatsD_ConnHdlr"]; + CTRL_Adapter_CT [label="CTRL_Adapter_CT"]; + + test [label="testcasename()\n(PCU_Tests.ttcn)", color=red]; + + subgraph cluster_bssgp_CT { + label="bssgp_CT\nSGSN_Components.ttcn"; + subgraph cluster_BSSGP_Client_CT { + label="BSSGP_Client_CT\nBSSGP_Emulation.ttcnpp"; + BSSGP_PT [label="port BSSGP_PT BSSGP"]; + } + } + + subgraph cluster_MS_BTS_IFACE_CT { + label = "MS_BTS_IFACE_CT\n(GPRS_Components.ttcn)"; + + RAW_PCU_MSG_PT_BTS_IFACE [label="port RAW_PCU_MSG_PT BTS"]; + } + + } + + subgraph cluster_RAW_PCUIF_CT { + label = "RAW_PCUIF_CT\n(PCUIF_Components.ttcn)"; + + PCUIF_CODEC_PT_PCU [label="port PCUIF_CODEC_PT PCU"]; + RAW_PCU_MSG_PT_BTS [label="port RAW_PCU_MSG_PT BTS"]; + RAW_PCU_MSG_PT_MTC [label="port RAW_PCU_MSG_PT MTC"]; + + PCUIF_CODEC_PT_PCU -> RAW_PCU_MSG_PT_BTS [dir=none]; + PCUIF_CODEC_PT_PCU -> RAW_PCU_MSG_PT_MTC [dir=none]; + + } + + subgraph cluster_RAW_PCU_BTS_CT { + label = "RAW_PCU_BTS_CT\n(PCUIF_Components.ttcn)"; + + RAW_PCU_MSG_PT_CLCK_A [label="port RAW_PCU_MSG_PT CLCK"]; + RAW_PCU_MSG_PT_PCUIF_B [label="port RAW_PCU_MSG_PT PCUIF"]; + RAW_PCU_MSG_PT_TC [label="port RAW_PCU_MSG_PT TC"]; + + subgraph cluster_RAW_PCU_ClckGen_CT { + label = "RAW_PCU_ClckGen_CT\n(PCUIF_Components.ttcn)"; + + RAW_PCU_MSG_PT_CLCK_B [label="port RAW_PCU_MSG_PT CLCK", color=purple]; + } + + RAW_PCU_MSG_PT_CLCK_A -> RAW_PCU_MSG_PT_CLCK_B [dir=back]; + RAW_PCU_MSG_PT_PCUIF_B -> RAW_PCU_MSG_PT_TC [dir=none]; + } + + + RAW_PCU_MSG_PT_TC -> RAW_PCU_MSG_PT_BTS_IFACE [dir=none]; + RAW_PCU_MSG_PT_PCUIF_A -> RAW_PCU_MSG_PT_MTC [dir=none]; + RAW_PCU_MSG_PT_PCUIF_B -> RAW_PCU_MSG_PT_BTS [dir=none]; + + PCUIF_CODEC_PT_PCU -> system_PCU_PT [dir=none]; + + test -> RAW_PCU_MSG_PT_BTS_IFACE [dir=none]; + test -> RAW_PCU_MSG_PT_PCUIF_A [label="(unused)", dir=none]; + test -> BSSGP_PT; + test -> PCUVTY; + test -> StatsD_ConnHdlr; + test -> CTRL_Adapter_CT; + } + + PCU -> BSSGP_PT [label="Gb"]; + PCU -> StatsD_ConnHdlr [label="statsd"]; + system_PCU_PT -> PCU [label="PCUIF"]; + PCUVTY -> PCU [label="VTY"]; + CTRL_Adapter_CT -> PCU [label="CTRL"]; +} +%} diff --git a/pcu/SGSN_Components.ttcn b/pcu/SGSN_Components.ttcn new file mode 100644 index 00000000..bbac9b0d --- /dev/null +++ b/pcu/SGSN_Components.ttcn @@ -0,0 +1,151 @@ +module SGSN_Components { +/* + * Osmocom PCU test suite in TTCN-3, components for BSSGP handlng + * (C) 2018-2019 Harald Welte <laforge@gnumonks.org> + * (C) 2020 by sysmocom s.f.m.c. GmbH <info@sysmocom.de> + * 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 BSSGP_Types all; +import from BSSGP_Emulation all; +import from NS_Types all; +import from NS_Emulation all; +import from GPRS_Context all; + +modulepar { + BssgpConfig mp_gb_cfg := { + nsei := 1234, + sgsn_role := true, + bvc := { + { + bvci := 1234, + cell_id := { + ra_id := { + lai := { + mcc_mnc := '262F42'H, lac := 13135 + }, + rac := 0 + }, + cell_id := 20960 + }, + depth := BSSGP_DECODE_DEPTH_BSSGP, + create_cb := refers(BSSGP_Emulation.DefaultCreateCallback) + } + } + }; + + NSConfiguration mp_nsconfig := { + nsei := 2342, + role_sgsn := true, + handle_sns := true, + nsvc := { + { + provider := { + ip := { + address_family := AF_INET, + local_udp_port := 23000, + local_ip := "127.0.0.1", + remote_udp_port := 21000, + remote_ip := "127.0.0.1" + } + }, + nsvci := 0 + }, + { + provider := { + ip := { + address_family := AF_INET, + local_udp_port := 23001, + local_ip := "127.0.0.1", + remote_udp_port := 21000, + remote_ip := "127.0.0.1" + } + }, + nsvci := 0 + }, + { + provider := { + ip := { + address_family := AF_INET, + local_udp_port := 23002, + local_ip := "127.0.0.1", + remote_udp_port := 21000, + remote_ip := "127.0.0.1" + } + }, + nsvci := 0 + } + } + }; +} + +/* FIXME: merge this into BSSGP_Client_CT ? */ +type component bssgp_CT extends BSSGP_Client_CT { + var NS_CT ns_component; + var BSSGP_CT bssgp_component; + port BSSGP_CT_PROC_PT PROC; + port BSSGP_PT RIM; + var boolean g_initialized := false; +} + +/* FIXME: merge this into BSSGP_Client_CT ? */ +function f_init_bssgp() runs on bssgp_CT { + var MmContext mmctx := { + imsi := '262420000000001'H, + tlli := 'FFFFFFFF'O, + n_u := 0 + }; + + + if (g_initialized == true) { + return; + } + g_initialized := true; + + /* create a new NS component */ + ns_component := NS_CT.create alive; + bssgp_component := BSSGP_CT.create alive; + /* connect lower-end of BSSGP with BSSGP_CODEC_PORT (maps to NS_PT*/ + connect(bssgp_component:BSCP, ns_component:NS_SP); + connect(self:PROC, bssgp_component:PROC); + ns_component.start(NSStart(mp_nsconfig)); + bssgp_component.start(BssgpStart(mp_gb_cfg, testcasename())); + + for (var integer i := 0; i < lengthof(mp_gb_cfg.bvc); i := i+1) { + var BSSGP_BVC_CT vc_BVC; + /* obtain reference for BVC component (created by BssgpStart) */ + vc_BVC := f_bssgp_get_bvci_ct(mp_gb_cfg.bvc[i].bvci, PROC); + /* connect our BSSGP port to the BSSGP Emulation */ + connect(self:BSSGP[i], vc_BVC:BSSGP_SP); + connect(self:BSSGP_SIG[i], vc_BVC:BSSGP_SP_SIG); + connect(self:BSSGP_PROC[i], vc_BVC:BSSGP_PROC); + f_bssgp_client_register(mmctx.imsi, mmctx.tlli); + } + /* connect RIM related port */ + connect(self:RIM, bssgp_component:RIM); + connect(self:BSSGP_GLOBAL[0], bssgp_component:GLOBAL); +} + +/* Establish BSSGP connection to PCU */ +function f_bssgp_establish() runs on BSSGP_Client_CT { + timer T:= 10.0; + + T.start + alt { + [] BSSGP[0].receive(tr_BssgpStsInd(*, ?, BVC_S_UNBLOCKED)) { } + [] BSSGP[0].receive { repeat; } + [] T.timeout { + setverdict(fail, "Timeout establishing BSSGP connection"); + mtc.stop; + } + } + T.stop + log("BSSGP successfully initialized"); +} + +} diff --git a/pcu/expected-results.xml b/pcu/expected-results.xml index e9610bd5..17d95cc5 100644 --- a/pcu/expected-results.xml +++ b/pcu/expected-results.xml @@ -1,7 +1,145 @@ <?xml version="1.0"?> -<testsuite name='PCU_Tests' tests='4' failures='0' errors='0' skipped='0' inconc='0' time='MASKED'> - <testcase classname='PCU_Tests' name='TC_ul_tbf_single_llc_sizes' time='MASKED'/> - <testcase classname='PCU_Tests' name='TC_ul_tbf' time='MASKED'/> - <testcase classname='PCU_Tests' name='TC_selftest_ns' time='MASKED'/> - <testcase classname='PCU_Tests' name='TC_paging' time='MASKED'/> +<testsuite name='Titan' tests='117' failures='5' errors='0' skipped='0' inconc='0' time='MASKED'> + <testcase classname='PCU_Tests' name='TC_pcuif_suspend' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_pcuif_suspend_active_tbf' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_ta_ptcch_idle' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_ta_rach_imm_ass' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_ta_ul_ack_nack_first_block' time='MASKED'> + <failure type='fail-verdict'>Timing Advance mismatch: expected 2, but received 0 + PCU_Tests.ttcn:MASKED PCU_Tests control part + PCU_Tests.ttcn:MASKED TC_ta_ul_ack_nack_first_block testcase + </failure> + </testcase> + <testcase classname='PCU_Tests' name='TC_ta_idle_dl_tbf_ass' time='MASKED'> + <failure type='fail-verdict'>Timing Advance value doesn't match + PCU_Tests.ttcn:MASKED PCU_Tests control part + PCU_Tests.ttcn:MASKED TC_ta_idle_dl_tbf_ass testcase + </failure> + </testcase> + <testcase classname='PCU_Tests' name='TC_ta_ptcch_ul_multi_tbf' time='MASKED'> + <failure type='fail-verdict'>Failed to match Timing Advance Index for #0 + PCU_Tests.ttcn:MASKED PCU_Tests control part + PCU_Tests.ttcn:MASKED TC_ta_ptcch_ul_multi_tbf testcase + </failure> + </testcase> + <testcase classname='PCU_Tests' name='TC_cs_lqual_ul_tbf' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_cs_initial_ul' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_cs_max_ul' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_cs_initial_dl' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_cs_max_dl' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_dl_cs1_to_cs4' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_mcs_initial_ul' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_mcs_max_ul' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_mcs_initial_dl' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_mcs_max_dl' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_t3141' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_n3101_max_t3169' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_n3103_max_t3169' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_x2031_t3191' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_zero_x2031_t3191' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_t3193' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_n3105_max_t3195' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_t3172_wait_ind_size0' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_t3172_wait_ind_size1' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_countdown_procedure' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_ul_all_sizes' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_ul_data_toolong_fills_padding' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_mo_ping_pong' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_mo_ping_pong_with_ul_racap' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_force_two_phase_access' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_mt_ping_pong' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_mt_ping_pong_with_dl_racap' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_ul_intermediate_retrans' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_imm_ass_dl_block_retrans' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_dl_flow_more_blocks' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_ul_flow_multiple_llc_blocks' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_dl_no_ack_retrans_imm_ass' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_dl_llc_sapi_priority' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_ul_tbf_bsn_wraparound_gprs' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_paging_cs_from_bts' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_paging_cs_from_sgsn_sign_ptmsi' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_paging_cs_from_sgsn_sign' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_paging_cs_from_sgsn_ptp' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_paging_ps_from_sgsn_sign_ptmsi' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_paging_ps_from_sgsn_sign' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_paging_ps_from_sgsn_ptp' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_paging_pch_timeout' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_paging_cs_multi_ms_imsi_tmsi' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_paging_cs_multi_ms_imsi' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_paging_cs_multi_ms_tmsi' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_bssgp_dl_unitdata_with_valid_imsi' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_bssgp_dl_unitdata_with_invalid_imsi' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_dl_gprs_data_no_llc_ui_dummy' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_dl_egprs_data_no_llc_ui_dummy' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_ul_tbf_finished_pkt_dl_ass_pch' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_ul_tbf_1phase_while_dl_ass_pch' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_ul_tbf_2phase_while_dl_ass_pch' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_egprs_pkt_chan_req_signalling' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_egprs_pkt_chan_req_one_phase' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_egprs_pkt_chan_req_two_phase' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_egprs_pkt_chan_req_reject_content' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_egprs_pkt_chan_req_reject_emergency' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_egprs_pkt_chan_req_reject_exhaustion' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_mo_ping_pong_with_ul_racap_egprs_only' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_pcuif_fh_imm_ass_ul_egprs' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_pcuif_fh_imm_ass_ul' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_pcuif_fh_imm_ass_dl' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_pcuif_fh_pkt_ass_ul' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_pcuif_fh_pkt_ass_dl' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_multitrx_multims_alloc' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_dl_multislot_tbf_ms_class_from_sgsn' time='MASKED'> + <failure type='fail-verdict'>Expected 8 PDCH slots allocated but got 4 + PCU_Tests.ttcn:MASKED PCU_Tests control part + PCU_Tests.ttcn:MASKED TC_dl_multislot_tbf_ms_class_from_sgsn testcase + </failure> + </testcase> + <testcase classname='PCU_Tests' name='TC_dl_multislot_tbf_ms_class_unknown' time='MASKED'> + <failure type='fail-verdict'>Expected 1 PDCH slots allocated but got 4 + PCU_Tests.ttcn:MASKED PCU_Tests control part + PCU_Tests.ttcn:MASKED TC_dl_multislot_tbf_ms_class_unknown testcase + </failure> + </testcase> + <testcase classname='PCU_Tests' name='TC_dl_multislot_tbf_ms_class_from_2phase' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_ul_multislot_tbf_ms_class_from_2phase' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_ul_tbf_reestablish_with_pkt_resource_req' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_ul_tbf_reestablish_with_pkt_resource_req_t3168' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_ul_tbf_reestablish_with_pkt_dl_ack_nack' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_ul_tbf_reestablish_with_pkt_dl_ack_nack_egprs' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_multiplex_dl_gprs_egprs' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_pcuif_info_ind_subsequent' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_nacc_outbound_success' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_nacc_outbound_success_utran' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_nacc_outbound_success_eutran' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_nacc_outbound_success_no_ctrl_ack' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_nacc_outbound_success_twice' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_nacc_outbound_success_twice_nocache' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_nacc_outbound_rac_ci_resolve_timeout' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_nacc_outbound_si_resolve_timeout' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_nacc_outbound_pkt_cell_chg_notif_dup' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_nacc_outbound_pkt_cell_chg_notif_dup2' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_nacc_outbound_pkt_cell_chg_notif_dup3' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_nacc_outbound_pkt_cell_chg_notif_dup4' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_nacc_outbound_pkt_cell_chg_notif_dup5' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_nacc_outbound_pkt_cell_chg_notif_twice' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_nacc_outbound_pkt_cell_chg_notif_twice2' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_nacc_outbound_pkt_cell_chg_notif_twice3' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_nacc_outbound_pkt_cell_chg_notif_twice4' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_nacc_outbound_pkt_cell_chg_notif_twice5' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_nacc_outbound_pkt_cell_chg_notif_unassigned_dl_tbf' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_rim_ran_info_req_single_rep' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_rim_ran_info_req_single_rep_eutran' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_rim_ran_info_req_single_rep_no_si' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_pdch_energy_saving' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_stat_pdch_avail_occ' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_stat_pdch_avail_occ_ms_not_known_gprs' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_stat_pdch_avail_occ_ms_not_known_egprs' time='MASKED'/> + <testcase classname='PCU_Tests' name='TC_ratectr_all_available_allocated' time='MASKED'/> + <testcase classname='PCU_Tests_NS' name='TC_ns_reset' time='MASKED'/> + <testcase classname='PCU_Tests_NS' name='TC_ns_reset_retrans' time='MASKED'/> + <testcase classname='PCU_Tests_NS' name='TC_ns_alive' time='MASKED'/> + <testcase classname='PCU_Tests_NS' name='TC_ns_alive_timeout_reset' time='MASKED'/> + <testcase classname='PCU_Tests_NS' name='TC_ns_unblock' time='MASKED'/> + <testcase classname='PCU_Tests_NS' name='TC_ns_unblock_retrans' time='MASKED'/> + <testcase classname='PCU_Tests_NS' name='TC_ns_full_bringup' time='MASKED'/> + <testcase classname='PCU_Tests_NS' name='TC_ns_so_block' time='MASKED'/> </testsuite> diff --git a/pcu/gen_links.sh b/pcu/gen_links.sh index f9f6dd5d..556f02a7 100755 --- a/pcu/gen_links.sh +++ b/pcu/gen_links.sh @@ -44,13 +44,20 @@ DIR=$BASEDIR/titan.ProtocolModules.SNDCP_v7.0.0/src FILES="SNDCP_Types.ttcn" gen_links $DIR $FILES +DIR=$BASEDIR/titan.TestPorts.TELNETasp/src +FILES="TELNETasp_PT.cc TELNETasp_PT.hh TELNETasp_PortType.ttcn" +gen_links $DIR $FILES DIR=../library -FILES="Misc_Helpers.ttcn General_Types.ttcn Native_Functions.ttcn Native_FunctionDefs.cc GSM_Types.ttcn GSM_RR_Types.ttcn Osmocom_Types.ttcn RLCMAC_Types.ttcn RLCMAC_CSN1_Types.ttcn RLCMAC_EncDec.cc L1CTL_Types.ttcn L1CTL_PortType.ttcn L1CTL_PortType_CtrlFunct.ttcn L1CTL_PortType_CtrlFunctDef.cc LAPDm_RAW_PT.ttcn LAPDm_Types.ttcn " -FILES+="NS_Emulation.ttcn NS_CodecPort.ttcn NS_CodecPort_CtrlFunct.ttcn NS_CodecPort_CtrlFunctDef.cc " -FILES+="BSSGP_Emulation.ttcn Osmocom_Gb_Types.ttcn " +FILES="Misc_Helpers.ttcn General_Types.ttcn Osmocom_VTY_Functions.ttcn Native_Functions.ttcn Native_FunctionDefs.cc GSM_Types.ttcn GSM_RR_Types.ttcn GSM_RestOctets.ttcn Osmocom_Types.ttcn RLCMAC_Templates.ttcn RLCMAC_Types.ttcn RLCMAC_CSN1_Templates.ttcn RLCMAC_CSN1_Types.ttcn RLCMAC_EncDec.cc " +FILES+="StatsD_Types.ttcn StatsD_CodecPort.ttcn StatsD_CodecPort_CtrlFunct.ttcn StatsD_CodecPort_CtrlFunctdef.cc StatsD_Checker.ttcn " +FILES+="RAW_NS.ttcnpp NS_Provider_IPL4.ttcn NS_Emulation.ttcnpp " +FILES+="BSSGP_Emulation.ttcnpp Osmocom_Gb_Types.ttcn " FILES+="LLC_Templates.ttcn L3_Templates.ttcn L3_Common.ttcn " -FILES+="PCUIF_Types.ttcn PCUIF_CodecPort.ttcn " +FILES+="PCUIF_Types.ttcn PCUIF_CodecPort.ttcn RAW_NS.ttcnpp " +# IPA_Emulation + dependencies +FILES+="IPA_Types.ttcn IPA_Emulation.ttcnpp IPA_CodecPort.ttcn IPA_CodecPort_CtrlFunct.ttcn IPA_CodecPort_CtrlFunctDef.cc " +FILES+="Osmocom_CTRL_Types.ttcn Osmocom_CTRL_Functions.ttcn Osmocom_CTRL_Adapter.ttcn " gen_links $DIR $FILES ignore_pp_results diff --git a/pcu/osmo-bsc.cfg b/pcu/osmo-bsc.cfg deleted file mode 100644 index c5619557..00000000 --- a/pcu/osmo-bsc.cfg +++ /dev/null @@ -1,194 +0,0 @@ -! -! OsmoBSC (1.1.2.236-5f22) configuration saved from vty -!! -password foo -! -log gsmtap 127.0.0.1 - logging level set-all debug -! - -log stderr - logging color 1 - logging filter all 1 - logging print level 1 - logging print category 1 - logging print category-hex 0 - logging print file basename last - logging print extended-timestamp 1 - logging level set-all debug - #~ logging level hodec info - #~ logging level ho info - #~ logging level nm info - #~ logging level meas info - #~ logging level lmi info - #~ logging level linp notice - #~ logging level lss7 notice - #~ logging level lsccp notice - #~ logging level lsua notice - #~ logging level lm3ua notice - -stats interval 5 -! -line vty - no login - bind 127.0.0.1 -! -e1_input - e1_line 0 driver ipa - e1_line 0 port 0 - no e1_line 0 keepalive - ipa bind 127.0.0.1 -cs7 instance 0 - point-code 0.23.3 - asp asp-clnt-msc-0 2905 0 m3ua - as as-clnt-msc-0 m3ua - asp asp-clnt-msc-0 - routing-key 2 0.23.3 -network - network country code 262 - mobile network code 42 - encryption a5 0 - neci 1 - paging any use tch 0 - handover 0 - handover1 window rxlev averaging 10 - handover1 window rxqual averaging 1 - handover1 window rxlev neighbor averaging 10 - handover1 power budget interval 6 - handover1 power budget hysteresis 3 - handover1 maximum distance 9999 - periodic location update 30 - bts 0 - type sysmobts - band DCS1800 - cell_identity 20960 - location_area_code 13135 - dtx uplink force - dtx downlink - base_station_id_code 63 - ms max power 15 - cell reselection hysteresis 4 - rxlev access min 0 - radio-link-timeout 32 - channel allocator ascending - rach tx integer 9 - rach max transmission 7 - channel-descrption attach 1 - channel-descrption bs-pa-mfrms 5 - channel-descrption bs-ag-blks-res 1 - early-classmark-sending forbidden - early-classmark-sending-3g allowed - ip.access unit_id 1234 0 - ip.access rsl-ip 127.0.0.1 - oml ip.access stream_id 255 line 0 - neighbor-list mode manual-si5 - neighbor-list add arfcn 100 - neighbor-list add arfcn 200 - si5 neighbor-list add arfcn 10 - si5 neighbor-list add arfcn 20 - codec-support fr - gprs mode gprs - gprs 11bit_rach_support_for_egprs 0 - gprs routing area 0 - gprs network-control-order nc0 - gprs cell bvci 1234 - gprs cell timer blocking-timer 3 - gprs cell timer blocking-retries 3 - gprs cell timer unblocking-retries 3 - gprs cell timer reset-timer 3 - gprs cell timer reset-retries 3 - gprs cell timer suspend-timer 10 - gprs cell timer suspend-retries 3 - gprs cell timer resume-timer 10 - gprs cell timer resume-retries 3 - gprs cell timer capability-update-timer 10 - gprs cell timer capability-update-retries 3 - gprs nsei 1234 - gprs ns timer tns-block 3 - gprs ns timer tns-block-retries 3 - gprs ns timer tns-reset 3 - gprs ns timer tns-reset-retries 3 - gprs ns timer tns-test 30 - gprs ns timer tns-alive 3 - gprs ns timer tns-alive-retries 10 - gprs nsvc 0 nsvci 1234 - gprs nsvc 0 local udp port 22000 - gprs nsvc 0 remote udp port 23000 - gprs nsvc 0 remote ip 127.0.0.1 - no force-combined-si - trx 0 - rf_locked 0 - arfcn 871 - nominal power 23 - max_power_red 20 - rsl e1 tei 0 - timeslot 0 - phys_chan_config CCCH+SDCCH4 - hopping enabled 0 - timeslot 1 - phys_chan_config TCH/H - hopping enabled 0 - timeslot 2 - phys_chan_config TCH/H - hopping enabled 0 - timeslot 3 - phys_chan_config TCH/H - hopping enabled 0 - timeslot 4 - phys_chan_config TCH/H - hopping enabled 0 - timeslot 5 - phys_chan_config TCH/H - hopping enabled 0 - timeslot 6 - phys_chan_config TCH/H - hopping enabled 0 - timeslot 7 - phys_chan_config PDCH - hopping enabled 0 - #~ timeslot 1 - #~ phys_chan_config TCH/F - #~ hopping enabled 0 - #~ timeslot 2 - #~ phys_chan_config TCH/F - #~ hopping enabled 0 - #~ timeslot 3 - #~ phys_chan_config TCH/F_PDCH - #~ hopping enabled 0 - #~ timeslot 4 - #~ phys_chan_config TCH/F_TCH/H_PDCH - #~ hopping enabled 0 - #~ timeslot 5 - #~ phys_chan_config TCH/H - #~ hopping enabled 0 - #~ timeslot 6 - #~ phys_chan_config SDCCH8 - #~ hopping enabled 0 - #~ timeslot 7 - #~ phys_chan_config PDCH - #~ hopping enabled 0 -msc 0 - core-location-area-code 666 - core-cell-identity 333 - ip.access rtp-base 4000 - timeout-ping 12 - timeout-pong 14 - no timeout-ping advanced - no bsc-welcome-text - no bsc-msc-lost-text - no bsc-grace-text - codec-list fr1 fr2 fr3 - type normal - allow-emergency allow - amr-config 12_2k forbidden - amr-config 10_2k forbidden - amr-config 7_95k forbidden - amr-config 7_40k forbidden - amr-config 6_70k forbidden - amr-config 5_90k allowed - amr-config 5_15k forbidden - amr-config 4_75k forbidden -bsc - mid-call-timeout 0 - no missing-msc-text - access-list-name bsc-list diff --git a/pcu/osmo-bts.cfg b/pcu/osmo-bts.cfg deleted file mode 100644 index 7f36f87e..00000000 --- a/pcu/osmo-bts.cfg +++ /dev/null @@ -1,83 +0,0 @@ -! -! OsmoBTS (0.4.0.446-e0fb) configuration saved from vty -!! -! -log gsmtap 127.0.0.1 - logging level set-all debug -! -log stderr - logging filter all 1 - logging color 1 - logging print category 1 - logging timestamp 1 - logging print extended-timestamp 1 - logging level rsl info - logging level oml info - logging level rll notice - logging level rr notice - logging level meas info - logging level pag info - logging level l1c info - logging level l1p notice - logging level dsp info - logging level pcu debug - logging level ho notice - logging level trx info - logging level loop notice - logging level abis notice - logging level rtp notice - logging level sum notice - logging level lglobal notice - logging level llapd notice - logging level linp notice - logging level lmux notice - logging level lmi notice - logging level lmib debug - logging level lsms notice - logging level lctrl notice - logging level lgtp notice - logging level lstats notice - logging level lgsup notice - logging level loap notice - logging level lss7 notice - logging level lsccp notice - logging level lsua notice - logging level lm3ua notice -! -line vty - no login - bind 127.0.0.1 -! -e1_input - e1_line 0 driver ipa - e1_line 0 port 0 - no e1_line 0 keepalive -phy 0 - !virtual-um ms-multicast-group 239.193.23.1 - !virtual-um bts-multicast-group 239.193.23.2 - instance 0 -bts 0 - band DCS1800 - ipa unit-id 1234 0 - oml remote-ip 127.0.0.1 - rtp jitter-buffer 100 - paging queue-size 200 - paging lifetime 0 - uplink-power-target -75 - gsmtap-sapi rach - gsmtap-sapi agch - gsmtap-sapi bcch - gsmtap-sapi pch - gsmtap-sapi sdcch - gsmtap-sapi sacch - min-qual-rach 50 - min-qual-norm -5 - pcu-socket /tmp/pcu_bts - trx 0 - power-ramp max-initial 0 mdBm - power-ramp step-size 2000 mdB - power-ramp step-interval 1 - ms-power-control dsp - phy 0 instance 0 -ctrl - bind 127.0.0.1 diff --git a/pcu/osmo-pcu-sns.cfg b/pcu/osmo-pcu-sns.cfg index c2cd58ac..cfe4ccfe 100644 --- a/pcu/osmo-pcu-sns.cfg +++ b/pcu/osmo-pcu-sns.cfg @@ -1,8 +1,10 @@ log gsmtap 127.0.0.1 logging level set-all debug + logging filter all 1 log stderr logging filter all 1 + logging color 1 logging print level 1 logging print category 1 logging print category-hex 0 @@ -21,3 +23,5 @@ pcu gamma 0 pcu-socket /tmp/pcu_bts gb-dialect ip-sns +ns + timer tns-test 10 diff --git a/pcu/osmo-pcu.cfg b/pcu/osmo-pcu.cfg index d6213b51..68ea521b 100644 --- a/pcu/osmo-pcu.cfg +++ b/pcu/osmo-pcu.cfg @@ -1,14 +1,26 @@ log gsmtap 127.0.0.1 logging level set-all debug + logging filter all 1 log stderr logging filter all 1 + logging color 1 logging print level 1 logging print category 1 logging print category-hex 0 logging print file basename last logging print extended-timestamp 1 logging level set-all debug +! +stats interval 0 +stats reporter statsd + prefix TTCN3 + level subscriber + remote-ip 127.0.0.1 + remote-port 8125 + flush-period 1 + mtu 1024 + enable line vty no login @@ -17,6 +29,9 @@ pcu flow-control-interval 10 cs 2 alloc-algorithm dynamic - alpha 0 gamma 0 pcu-socket /tmp/pcu_bts +! By default, use the PCUIF for neighbor resolution +! neighbor resolution 127.0.0.1 + gsmtap-remote-host 127.0.0.1 + gsmtap-category enable-all diff --git a/pcu/regen_makefile.sh b/pcu/regen_makefile.sh index ff712dc4..006c6baa 100755 --- a/pcu/regen_makefile.sh +++ b/pcu/regen_makefile.sh @@ -1,5 +1,27 @@ #!/bin/sh -FILES="*.ttcn BSSGP_EncDec.cc IPL4asp_PT.cc IPL4asp_discovery.cc TCCConversion.cc TCCInterface.cc NS_CodecPort_CtrlFunctDef.cc UD_PT.cc RLCMAC_EncDec.cc LLC_EncDec.cc L1CTL_PortType_CtrlFunctDef.cc Native_FunctionDefs.cc" +NAME=PCU_Tests -../regen-makefile.sh PCU_Tests.ttcn $FILES +FILES=" + *.ttcn + *.ttcnpp + BSSGP_EncDec.cc + IPA_CodecPort_CtrlFunctDef.cc + IPL4asp_PT.cc + IPL4asp_discovery.cc + LLC_EncDec.cc + Native_FunctionDefs.cc + RLCMAC_EncDec.cc + StatsD_CodecPort_CtrlFunctdef.cc + TCCConversion.cc + TCCInterface.cc + TELNETasp_PT.cc + UD_PT.cc +" + +export CPPFLAGS_TTCN3=" + -DBSSGP_EM_L3 + -DIPA_EMULATION_CTRL +" + +../regen-makefile.sh -e $NAME $FILES |