/* * Copyright 2013-2020 Software Radio Systems Limited * * This file is part of srsLTE. * * srsLTE is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of * the License, or (at your option) any later version. * * srsLTE is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * A copy of the GNU Affero General Public License can be found in * the LICENSE file in the top-level directory of this distribution * and at http://www.gnu.org/licenses/. * */ #include "srsenb/hdr/enb.h" #include "srsenb/hdr/stack/rrc/rrc_mobility.h" #include "srsenb/src/enb_cfg_parser.h" #include "srsenb/test/common/dummy_classes.h" #include "srslte/asn1/rrc_asn1_utils.h" #include "srslte/common/test_common.h" #include "test_helpers.h" #include #include meas_cell_cfg_t generate_cell1() { meas_cell_cfg_t cell1{}; cell1.earfcn = 3400; cell1.pci = 1; cell1.q_offset = 0; cell1.eci = 0x19C01; return cell1; } report_cfg_eutra_s generate_rep1() { report_cfg_eutra_s rep{}; rep.report_amount.value = report_cfg_eutra_s::report_amount_opts::r16; rep.report_interv.value = report_interv_opts::ms240; rep.max_report_cells = 2; rep.report_quant.value = report_cfg_eutra_s::report_quant_opts::both; rep.trigger_quant.value = report_cfg_eutra_s::trigger_quant_opts::rsrp; rep.trigger_type.set_event().event_id.set_event_a3(); rep.trigger_type.event().time_to_trigger.value = time_to_trigger_opts::ms100; rep.trigger_type.event().hysteresis = 0; rep.trigger_type.event().event_id.event_a3().a3_offset = 5; rep.trigger_type.event().event_id.event_a3().report_on_leave = true; return rep; } bool is_cell_cfg_equal(const meas_cell_cfg_t& cfg, const cells_to_add_mod_s& cell) { return cfg.pci == cell.pci and cell.cell_individual_offset.to_number() == (int8_t)round(cfg.q_offset); } int test_correct_insertion() { meas_cell_cfg_t cell1 = generate_cell1(), cell2{}, cell3{}, cell4{}; cell2 = cell1; cell2.pci = 2; cell2.eci = 0x19C02; cell3 = cell1; cell3.earfcn = 2850; cell4 = cell1; cell4.q_offset = 1; report_cfg_eutra_s rep1 = generate_rep1(); // TEST 1: cell/rep insertion in empty varMeasCfg { var_meas_cfg_t var_cfg{3400}; auto ret = var_cfg.add_cell_cfg(cell1); TESTASSERT(std::get<0>(ret) and std::get<1>(ret) != nullptr); const auto& objs = var_cfg.meas_objs(); TESTASSERT(objs.size() == 1 and objs[0].meas_obj_id == 1); TESTASSERT(objs[0].meas_obj.type().value == asn1::rrc::meas_obj_to_add_mod_s::meas_obj_c_::types_opts::meas_obj_eutra); auto& eutra = objs[0].meas_obj.meas_obj_eutra(); TESTASSERT(eutra.carrier_freq == cell1.earfcn); TESTASSERT(eutra.cells_to_add_mod_list.size() == 1); TESTASSERT(is_cell_cfg_equal(cell1, eutra.cells_to_add_mod_list[0])); auto ret2 = var_cfg.add_report_cfg(rep1); TESTASSERT(ret2->report_cfg_id == 1); TESTASSERT(ret2->report_cfg.report_cfg_eutra() == rep1); } { var_meas_cfg_t var_cfg{3400}; const auto& objs = var_cfg.meas_objs(); // TEST 2: insertion of out-of-order cell ids in same earfcn var_cfg.add_cell_cfg(cell2); var_cfg.add_cell_cfg(cell1); TESTASSERT(objs.size() == 1 and objs[0].meas_obj_id == 1); auto& eutra = objs[0].meas_obj.meas_obj_eutra(); TESTASSERT(eutra.carrier_freq == cell1.earfcn); TESTASSERT(eutra.cells_to_add_mod_list.size() == 2); const cells_to_add_mod_s* cell_it = eutra.cells_to_add_mod_list.begin(); TESTASSERT(cell_it[0].cell_idx == 1); TESTASSERT(cell_it[1].cell_idx == 2); TESTASSERT(cell_it[0].pci == cell2.pci); TESTASSERT(cell_it[1].pci == cell1.pci); // TEST 3: insertion of cell in another frequency auto ret1 = var_cfg.add_cell_cfg(cell3); TESTASSERT(std::get<0>(ret1) and std::get<1>(ret1)->meas_obj_id == 2); TESTASSERT(objs.size() == 2 and objs[1].meas_obj_id == 2); const auto& eutra2 = objs[1].meas_obj.meas_obj_eutra(); TESTASSERT(eutra2.carrier_freq == cell3.earfcn); TESTASSERT(eutra2.cells_to_add_mod_list_present and eutra2.cells_to_add_mod_list.size() == 1); TESTASSERT(eutra2.cells_to_add_mod_list[0].cell_idx == 1); TESTASSERT(eutra2.cells_to_add_mod_list[0].pci == cell3.pci); // TEST 4: update of existing cell auto ret2 = var_cfg.add_cell_cfg(cell4); TESTASSERT(std::get<0>(ret2) and std::get<1>(ret2)->meas_obj_id == 1); auto& eutra3 = objs[0].meas_obj.meas_obj_eutra(); TESTASSERT(objs.size() == 2 and objs[0].meas_obj_id == 1); TESTASSERT(eutra3.carrier_freq == cell4.earfcn); TESTASSERT(eutra3.cells_to_add_mod_list.size() == 2); TESTASSERT(eutra3.cells_to_add_mod_list[1].cell_idx == 2); TESTASSERT(eutra3.cells_to_add_mod_list[1].pci == cell4.pci); TESTASSERT(eutra3.cells_to_add_mod_list[1].cell_individual_offset.to_number() == 1); } return 0; } int test_correct_meascfg_calculation() { var_meas_cfg_t src_var{3400}, target_var{3400}; meas_cell_cfg_t cell1{}, cell2{}; cell1.earfcn = 3400; cell1.pci = 1; cell1.q_offset = 0; cell1.eci = 0x19C01; cell2 = cell1; cell2.pci = 2; cell2.eci = 0x19C02; report_cfg_eutra_s rep1 = generate_rep1(), rep2{}, rep3{}; rep2 = rep1; rep2.trigger_quant.value = report_cfg_eutra_s::trigger_quant_opts::rsrq; rep3 = rep2; rep3.report_quant.value = report_cfg_eutra_s::report_quant_opts::same_as_trigger_quant; { meas_cfg_s result_meascfg; // TEST 1: Insertion of two cells in var_meas propagates to the resulting meas_cfg_s cellsToAddMod list target_var.add_cell_cfg(cell1); target_var.add_cell_cfg(cell2); target_var.add_report_cfg(rep1); target_var.add_report_cfg(rep2); target_var.add_measid_cfg(1, 1); target_var.add_measid_cfg(1, 2); src_var.compute_diff_meas_cfg(target_var, &result_meascfg); TESTASSERT(result_meascfg.meas_obj_to_add_mod_list_present); TESTASSERT(not result_meascfg.meas_obj_to_rem_list_present); TESTASSERT(result_meascfg.meas_obj_to_add_mod_list.size() == 1); auto* item = &result_meascfg.meas_obj_to_add_mod_list[0]; TESTASSERT(item->meas_obj_id == 1 and item->meas_obj.type().value == meas_obj_to_add_mod_s::meas_obj_c_::types_opts::meas_obj_eutra); auto& eutra = item->meas_obj.meas_obj_eutra(); TESTASSERT(eutra.cells_to_add_mod_list_present and not eutra.cells_to_rem_list_present); TESTASSERT(eutra.cells_to_add_mod_list.size() == 2); auto* cell_item = &eutra.cells_to_add_mod_list[0]; TESTASSERT(is_cell_cfg_equal(cell1, *cell_item)); cell_item++; TESTASSERT(is_cell_cfg_equal(cell2, *cell_item)); TESTASSERT(result_meascfg.report_cfg_to_add_mod_list_present and not result_meascfg.report_cfg_to_rem_list_present); TESTASSERT(result_meascfg.report_cfg_to_add_mod_list.size() == 2); TESTASSERT(result_meascfg.report_cfg_to_add_mod_list[0].report_cfg_id == 1); TESTASSERT(result_meascfg.report_cfg_to_add_mod_list[0].report_cfg.report_cfg_eutra() == rep1); TESTASSERT(result_meascfg.report_cfg_to_add_mod_list[1].report_cfg_id == 2); TESTASSERT(result_meascfg.report_cfg_to_add_mod_list[1].report_cfg.report_cfg_eutra() == rep2); TESTASSERT(result_meascfg.meas_id_to_add_mod_list_present and not result_meascfg.meas_id_to_rem_list_present); TESTASSERT(result_meascfg.meas_id_to_add_mod_list.size() == 2); auto* measid_item = &result_meascfg.meas_id_to_add_mod_list[0]; TESTASSERT(measid_item->meas_id == 1 and measid_item->meas_obj_id == 1 and measid_item->report_cfg_id == 1); measid_item++; TESTASSERT(measid_item->meas_id == 2 and measid_item->meas_obj_id == 1 and measid_item->report_cfg_id == 2); // TEST 2: measConfig is empty if nothing was updated src_var = target_var; src_var.compute_diff_meas_cfg(target_var, &result_meascfg); TESTASSERT(not result_meascfg.meas_obj_to_add_mod_list_present and not result_meascfg.meas_obj_to_rem_list_present); TESTASSERT(result_meascfg.meas_obj_to_add_mod_list.size() == 0); TESTASSERT(not result_meascfg.report_cfg_to_add_mod_list_present and not result_meascfg.report_cfg_to_rem_list_present); TESTASSERT(result_meascfg.report_cfg_to_add_mod_list.size() == 0); // TEST 3: Cell is added to cellsToAddModList if just a field was updated cell1.q_offset = 5; src_var = target_var; target_var.add_cell_cfg(cell1); src_var.compute_diff_meas_cfg(target_var, &result_meascfg); TESTASSERT(result_meascfg.meas_obj_to_add_mod_list_present); TESTASSERT(result_meascfg.meas_obj_to_add_mod_list.size() == 1); item = &result_meascfg.meas_obj_to_add_mod_list[0]; TESTASSERT(item->meas_obj_id == 1 and item->meas_obj.type().value == meas_obj_to_add_mod_s::meas_obj_c_::types_opts::meas_obj_eutra); eutra = item->meas_obj.meas_obj_eutra(); TESTASSERT(eutra.cells_to_add_mod_list_present and not eutra.cells_to_rem_list_present); TESTASSERT(eutra.cells_to_add_mod_list.size() == 1); cell_item = &eutra.cells_to_add_mod_list[0]; TESTASSERT(is_cell_cfg_equal(cell1, *cell_item)); // TEST 4: Removal of cell/rep from target propagates to the resulting meas_cfg_s src_var = target_var; TESTASSERT(src_var.meas_objs().size() == 1); TESTASSERT(src_var.meas_objs()[0].meas_obj.meas_obj_eutra().cells_to_add_mod_list.size() == 2); target_var = var_meas_cfg_t{3400}; target_var.add_cell_cfg(cell2); target_var.add_report_cfg(rep1); target_var.add_report_cfg(rep3); src_var.compute_diff_meas_cfg(target_var, &result_meascfg); TESTASSERT(result_meascfg.meas_obj_to_add_mod_list_present); TESTASSERT(result_meascfg.meas_obj_to_add_mod_list.size() == 1); item = &result_meascfg.meas_obj_to_add_mod_list[0]; TESTASSERT(item->meas_obj_id == 1 and item->meas_obj.type().value == meas_obj_to_add_mod_s::meas_obj_c_::types_opts::meas_obj_eutra); eutra = item->meas_obj.meas_obj_eutra(); TESTASSERT(eutra.cells_to_add_mod_list_present and eutra.cells_to_add_mod_list.size() == 1); TESTASSERT(eutra.cells_to_add_mod_list[0].pci == cell2.pci); TESTASSERT(eutra.cells_to_rem_list_present and eutra.cells_to_rem_list.size() == 1); TESTASSERT(eutra.cells_to_rem_list[0] == 2); TESTASSERT(result_meascfg.report_cfg_to_add_mod_list_present and not result_meascfg.report_cfg_to_rem_list_present); TESTASSERT(result_meascfg.report_cfg_to_add_mod_list.size() == 1); TESTASSERT(result_meascfg.report_cfg_to_add_mod_list[0].report_cfg_id == 2); TESTASSERT(result_meascfg.report_cfg_to_add_mod_list[0].report_cfg.report_cfg_eutra() == rep3); } return SRSLTE_SUCCESS; } struct mobility_test_params { enum class test_event { success, wrong_measreport, concurrent_ho, ho_prep_failure, duplicate_crnti_ce, recover } fail_at; const char* to_string() { switch (fail_at) { case test_event::success: return "success"; case test_event::wrong_measreport: return "wrong measreport"; case test_event::concurrent_ho: return "measreport while in handover"; case test_event::ho_prep_failure: return "ho preparation failure"; case test_event::recover: return "fail and success"; case test_event::duplicate_crnti_ce: return "duplicate CRNTI CE"; default: return "none"; } } }; struct mobility_tester { explicit mobility_tester(const mobility_test_params& args_) : args(args_), rrc(&task_sched) { rrc_log->set_level(srslte::LOG_LEVEL_INFO); rrc_log->set_hex_limit(1024); } virtual int generate_rrc_cfg() = 0; virtual int setup_rrc() { return setup_rrc_common(); } int run_preamble() { rrc_log->set_level(srslte::LOG_LEVEL_NONE); // mute all the startup log // add user sched_interface::ue_cfg_t ue_cfg{}; ue_cfg.supported_cc_list.resize(1); ue_cfg.supported_cc_list[0].enb_cc_idx = 0; ue_cfg.supported_cc_list[0].active = true; rrc.add_user(rnti, ue_cfg); // Do all the handshaking until the first RRC Connection Reconf test_helpers::bring_rrc_to_reconf_state(rrc, *task_sched.get_timer_handler(), rnti); rrc_log->set_level(srslte::LOG_LEVEL_INFO); return SRSLTE_SUCCESS; } mobility_test_params args; srslte::scoped_log rrc_log{"RRC"}; srslte::task_scheduler task_sched; rrc_cfg_t cfg; srsenb::rrc rrc; test_dummies::mac_mobility_dummy mac; test_dummies::rlc_mobility_dummy rlc; test_dummies::pdcp_mobility_dummy pdcp; test_dummies::phy_mobility_dummy phy; test_dummies::s1ap_mobility_dummy s1ap; gtpu_dummy gtpu; void tic() { task_sched.tic(); rrc.tti_clock(); task_sched.run_pending_tasks(); }; const uint16_t rnti = 0x46; protected: int generate_rrc_cfg_common() { srsenb::all_args_t all_args; TESTASSERT(test_helpers::parse_default_cfg(&cfg, all_args) == SRSLTE_SUCCESS); cfg.meas_cfg_present = true; report_cfg_eutra_s rep = generate_rep1(); cfg.cell_list[0].meas_cfg.meas_reports.push_back(rep); cfg.cell_list[0].meas_cfg.meas_cells.resize(1); cfg.cell_list[0].meas_cfg.meas_cells[0] = generate_cell1(); cfg.cell_list[0].meas_cfg.meas_cells[0].pci = 2; return SRSLTE_SUCCESS; } int setup_rrc_common() { rrc.init(cfg, &phy, &mac, &rlc, &pdcp, &s1ap, >pu); return SRSLTE_SUCCESS; } }; struct s1ap_mobility_tester : public mobility_tester { explicit s1ap_mobility_tester(const mobility_test_params& args_) : mobility_tester(args_) {} int generate_rrc_cfg() final { TESTASSERT(generate_rrc_cfg_common() == SRSLTE_SUCCESS); cfg.cell_list[0].meas_cfg.meas_cells[0].eci = 0x19C02; return SRSLTE_SUCCESS; } }; struct intraenb_mobility_tester : public mobility_tester { explicit intraenb_mobility_tester(const mobility_test_params& args_) : mobility_tester(args_) {} int generate_rrc_cfg() final { TESTASSERT(generate_rrc_cfg_common() == SRSLTE_SUCCESS); cfg.cell_list[0].meas_cfg.meas_cells[0].eci = 0x19B02; cell_cfg_t cell2 = cfg.cell_list[0]; cell2.pci = 2; cell2.cell_id = 2; cell2.meas_cfg.meas_cells[0].pci = 1; cell2.meas_cfg.meas_cells[0].eci = 0x19B01; cfg.cell_list.push_back(cell2); return SRSLTE_SUCCESS; } }; int test_s1ap_mobility(mobility_test_params test_params) { printf("\n===== TEST: test_s1ap_mobility() for event %s =====\n", test_params.to_string()); s1ap_mobility_tester tester{test_params}; srslte::unique_byte_buffer_t pdu; TESTASSERT(tester.generate_rrc_cfg() == SRSLTE_SUCCESS); TESTASSERT(tester.setup_rrc() == SRSLTE_SUCCESS); TESTASSERT(tester.run_preamble() == SRSLTE_SUCCESS); test_dummies::s1ap_mobility_dummy& s1ap = tester.s1ap; /* Receive MeasReport from UE (correct if PCI=2) */ if (test_params.fail_at == mobility_test_params::test_event::wrong_measreport) { uint8_t meas_report[] = {0x08, 0x10, 0x38, 0x74, 0x00, 0x0D, 0xBC, 0x80}; // PCI == 3 test_helpers::copy_msg_to_buffer(pdu, meas_report); } else { uint8_t meas_report[] = {0x08, 0x10, 0x38, 0x74, 0x00, 0x09, 0xBC, 0x80}; // PCI == 2 test_helpers::copy_msg_to_buffer(pdu, meas_report); } tester.rrc.write_pdu(tester.rnti, 1, std::move(pdu)); tester.tic(); /* Test Case: the MeasReport is not valid */ if (test_params.fail_at == mobility_test_params::test_event::wrong_measreport) { TESTASSERT(s1ap.last_ho_required.rrc_container == nullptr); TESTASSERT(tester.rrc_log->warn_counter == 1); return SRSLTE_SUCCESS; } TESTASSERT(s1ap.last_ho_required.rrc_container != nullptr); /* Test Case: Multiple concurrent MeasReports arrived. Only one HO procedure should be running */ if (test_params.fail_at == mobility_test_params::test_event::concurrent_ho) { s1ap.last_ho_required = {}; uint8_t meas_report[] = {0x08, 0x10, 0x38, 0x74, 0x00, 0x09, 0xBC, 0x80}; // PCI == 2 test_helpers::copy_msg_to_buffer(pdu, meas_report); tester.rrc.write_pdu(tester.rnti, 1, std::move(pdu)); tester.tic(); TESTASSERT(s1ap.last_ho_required.rrc_container == nullptr); return SRSLTE_SUCCESS; } /* Test Case: Check HO Required was sent to S1AP */ TESTASSERT(s1ap.last_ho_required.rnti == tester.rnti); TESTASSERT(s1ap.last_ho_required.target_eci == tester.cfg.cell_list[0].meas_cfg.meas_cells[0].eci); TESTASSERT(s1ap.last_ho_required.target_plmn.to_string() == "00101"); { asn1::cbit_ref bref(s1ap.last_ho_required.rrc_container->msg, s1ap.last_ho_required.rrc_container->N_bytes); asn1::rrc::ho_prep_info_s hoprep; TESTASSERT(hoprep.unpack(bref) == asn1::SRSASN_SUCCESS); ho_prep_info_r8_ies_s& hoprepr8 = hoprep.crit_exts.c1().ho_prep_info_r8(); TESTASSERT(hoprepr8.as_cfg_present); // Check if RRC sends the current active bearers TESTASSERT(hoprepr8.as_cfg.source_rr_cfg.srb_to_add_mod_list_present); TESTASSERT(hoprepr8.as_cfg.source_rr_cfg.srb_to_add_mod_list[0].srb_id == 1); TESTASSERT(hoprepr8.as_cfg.source_rr_cfg.srb_to_add_mod_list[1].srb_id == 2); TESTASSERT(hoprepr8.as_cfg.source_rr_cfg.drb_to_add_mod_list_present); TESTASSERT(hoprepr8.as_cfg.source_rr_cfg.drb_to_add_mod_list[0].drb_id == 1); } /* Test Case: HandoverPreparation has failed */ if (test_params.fail_at == mobility_test_params::test_event::ho_prep_failure) { tester.rrc.ho_preparation_complete(tester.rnti, false, nullptr); // TESTASSERT(rrc_log->error_counter == 1); TESTASSERT(not s1ap.last_enb_status.status_present); return SRSLTE_SUCCESS; } /* MME returns back an HandoverCommand, S1AP unwraps the RRC container */ uint8_t ho_cmd_rrc_container[] = {0x01, 0xa9, 0x00, 0xd9, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x0b, 0x22, 0x04, 0x00, 0x00, 0x01, 0x48, 0x04, 0xbc, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x02, 0xa0, 0x07, 0xa0, 0x10, 0x00, 0x01, 0x00, 0x05, 0x00, 0xa7, 0xd0, 0xc1, 0xf6, 0xaf, 0x3e, 0x12, 0xcc, 0x86, 0x0d, 0x30, 0x00, 0x0b, 0x5a, 0x02, 0x17, 0x86, 0x00, 0x05, 0xa0, 0x20}; test_helpers::copy_msg_to_buffer(pdu, ho_cmd_rrc_container); TESTASSERT(s1ap.last_enb_status.rnti != tester.rnti); tester.rrc.ho_preparation_complete(tester.rnti, true, std::move(pdu)); TESTASSERT(s1ap.last_enb_status.status_present); TESTASSERT(tester.rrc_log->error_counter == 0); asn1::rrc::dl_dcch_msg_s ho_cmd; TESTASSERT(test_helpers::unpack_asn1(ho_cmd, srslte::make_span(tester.pdcp.last_sdu.sdu))); auto& recfg_r8 = ho_cmd.msg.c1().rrc_conn_recfg().crit_exts.c1().rrc_conn_recfg_r8(); TESTASSERT(recfg_r8.mob_ctrl_info_present); return SRSLTE_SUCCESS; } int test_s1ap_tenb_mobility(mobility_test_params test_params) { printf("\n===== TEST: test_s1ap_tenb_mobility() for event %s =====\n", test_params.to_string()); s1ap_mobility_tester tester{test_params}; srslte::unique_byte_buffer_t pdu; TESTASSERT(tester.generate_rrc_cfg() == SRSLTE_SUCCESS); tester.cfg.cell_list[0].meas_cfg.meas_cells[0].eci = 0x19B01; tester.cfg.enb_id = 0x19C; tester.cfg.cell.id = 0x02; tester.cfg.cell_list[0].cell_id = 0x02; tester.cfg.cell_list[0].pci = 2; TESTASSERT(tester.setup_rrc() == SRSLTE_SUCCESS); security_cfg_handler sec_cfg{tester.cfg}; /* TeNB receives S1AP Handover Request */ asn1::s1ap::ho_request_s ho_req; ho_req.protocol_ies.erab_to_be_setup_list_ho_req.value.resize(1); auto& erab = ho_req.protocol_ies.erab_to_be_setup_list_ho_req.value[0].value.erab_to_be_setup_item_ho_req(); erab.erab_id = 5; erab.erab_level_qos_params.qci = 9; asn1::s1ap::sourceenb_to_targetenb_transparent_container_s container; container.target_cell_id.cell_id.from_number(0x19C02); uint8_t ho_prep_container[] = { 0x0a, 0x10, 0x0b, 0x81, 0x80, 0x00, 0x01, 0x80, 0x00, 0xf3, 0x02, 0x08, 0x00, 0x00, 0x15, 0x80, 0x00, 0x14, 0x06, 0xa4, 0x02, 0xf0, 0x04, 0x04, 0xf0, 0x00, 0x14, 0x80, 0x4a, 0x00, 0x00, 0x00, 0x02, 0x12, 0x31, 0xb6, 0xf8, 0x3e, 0xa0, 0x6f, 0x05, 0xe4, 0x65, 0x14, 0x1d, 0x39, 0xd0, 0x54, 0x4c, 0x00, 0x02, 0x54, 0x00, 0x20, 0x04, 0x60, 0x00, 0x00, 0x00, 0x10, 0x01, 0x00, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x02, 0x05, 0x00, 0x04, 0x14, 0x00, 0x67, 0x0d, 0xfb, 0xc4, 0x66, 0x06, 0x50, 0x0f, 0x00, 0x08, 0x00, 0x20, 0x80, 0x0c, 0x14, 0xca, 0x2d, 0x5c, 0xe1, 0x86, 0x35, 0x39, 0x80, 0x0e, 0x06, 0xa4, 0x40, 0x0f, 0x22, 0x78}; // 0a100b818000018000f3020800001580001406a402f00404f00014804a000000021231b6f83ea06f05e465141d39d0544c00025400200460000000100100c000000000020500041400670dfbc46606500f00080020800c14ca2d5ce1863539800e06a4400f2278 container.rrc_container.resize(sizeof(ho_prep_container)); memcpy(container.rrc_container.data(), ho_prep_container, sizeof(ho_prep_container)); tester.rrc.start_ho_ue_resource_alloc(ho_req, container); tester.tic(); TESTASSERT(tester.rrc.get_nof_users() == 1); TESTASSERT(tester.mac.ue_db.count(0x46)); auto& mac_ue = tester.mac.ue_db[0x46]; TESTASSERT(mac_ue.supported_cc_list[0].active); TESTASSERT(mac_ue.supported_cc_list[0].enb_cc_idx == 0); TESTASSERT(mac_ue.ue_bearers[rb_id_t::RB_ID_SRB0].direction == sched_interface::ue_bearer_cfg_t::BOTH); // Check Security Configuration TESTASSERT(tester.pdcp.bearers.count(0x46)); TESTASSERT(tester.pdcp.bearers[0x46].count(rb_id_t::RB_ID_SRB1) and tester.pdcp.bearers[0x46].count(rb_id_t::RB_ID_SRB2)); TESTASSERT(tester.pdcp.bearers[0x46][rb_id_t::RB_ID_SRB1].enable_encryption); TESTASSERT(tester.pdcp.bearers[0x46][rb_id_t::RB_ID_SRB1].enable_integrity); sec_cfg.set_security_capabilities(ho_req.protocol_ies.ue_security_cap.value); sec_cfg.set_security_key(ho_req.protocol_ies.security_context.value.next_hop_param); sec_cfg.regenerate_keys_handover(tester.cfg.cell_list[0].pci, tester.cfg.cell_list[0].dl_earfcn); srslte::as_security_config_t as_sec_cfg = sec_cfg.get_as_sec_cfg(); TESTASSERT(tester.pdcp.bearers[0x46][rb_id_t::RB_ID_SRB1].sec_cfg.k_rrc_int == as_sec_cfg.k_rrc_int); TESTASSERT(tester.pdcp.bearers[0x46][rb_id_t::RB_ID_SRB1].sec_cfg.k_rrc_enc == as_sec_cfg.k_rrc_enc); TESTASSERT(tester.pdcp.bearers[0x46][rb_id_t::RB_ID_SRB1].sec_cfg.k_up_int == as_sec_cfg.k_up_int); TESTASSERT(tester.pdcp.bearers[0x46][rb_id_t::RB_ID_SRB1].sec_cfg.cipher_algo == as_sec_cfg.cipher_algo); TESTASSERT(tester.pdcp.bearers[0x46][rb_id_t::RB_ID_SRB1].sec_cfg.integ_algo == as_sec_cfg.integ_algo); // Check if S1AP Handover Request ACK send is called TESTASSERT(tester.s1ap.last_ho_req_ack.rnti == 0x46); TESTASSERT(tester.s1ap.last_ho_req_ack.ho_cmd_pdu != nullptr); TESTASSERT(tester.s1ap.last_ho_req_ack.admitted_bearers.size() == ho_req.protocol_ies.erab_to_be_setup_list_ho_req.value.size()); ho_cmd_s ho_cmd; asn1::cbit_ref bref{tester.s1ap.last_ho_req_ack.ho_cmd_pdu->msg, tester.s1ap.last_ho_req_ack.ho_cmd_pdu->N_bytes}; TESTASSERT(ho_cmd.unpack(bref) == asn1::SRSASN_SUCCESS); bref = asn1::cbit_ref{ho_cmd.crit_exts.c1().ho_cmd_r8().ho_cmd_msg.data(), ho_cmd.crit_exts.c1().ho_cmd_r8().ho_cmd_msg.size()}; dl_dcch_msg_s dl_dcch_msg; TESTASSERT(dl_dcch_msg.unpack(bref) == asn1::SRSASN_SUCCESS); TESTASSERT(dl_dcch_msg.msg.type().value == dl_dcch_msg_type_c::types_opts::c1); TESTASSERT(dl_dcch_msg.msg.c1().type().value == dl_dcch_msg_type_c::c1_c_::types_opts::rrc_conn_recfg); auto& recfg_r8 = dl_dcch_msg.msg.c1().rrc_conn_recfg().crit_exts.c1().rrc_conn_recfg_r8(); // Receives MMEStatusTransfer asn1::s1ap::bearers_subject_to_status_transfer_list_l bearers; bearers.resize(1); bearers[0].value.bearers_subject_to_status_transfer_item().erab_id = 5; bearers[0].value.bearers_subject_to_status_transfer_item().dl_coun_tvalue.pdcp_sn = 100; bearers[0].value.bearers_subject_to_status_transfer_item().dl_coun_tvalue.hfn = 3; bearers[0].value.bearers_subject_to_status_transfer_item().ul_coun_tvalue.pdcp_sn = 120; bearers[0].value.bearers_subject_to_status_transfer_item().ul_coun_tvalue.hfn = 4; tester.rrc.set_erab_status(0x46, bearers); TESTASSERT(tester.pdcp.bearers.count(0x46)); TESTASSERT(tester.pdcp.bearers[0x46].count(3)); TESTASSERT(tester.pdcp.bearers[0x46][3].state.next_pdcp_tx_sn == 100); TESTASSERT(tester.pdcp.bearers[0x46][3].state.tx_hfn == 3); TESTASSERT(tester.pdcp.bearers[0x46][3].state.next_pdcp_rx_sn == 120); TESTASSERT(tester.pdcp.bearers[0x46][3].state.rx_hfn == 4); // user PRACHs and sends C-RNTI CE sched_interface::ue_cfg_t ue_cfg{}; ue_cfg.supported_cc_list.resize(1); ue_cfg.supported_cc_list[0].enb_cc_idx = 0; ue_cfg.supported_cc_list[0].active = true; tester.rrc.add_user(0x47, ue_cfg); tester.rrc.upd_user(0x47, 0x46); uint8_t recfg_complete[] = {0x10, 0x00}; test_helpers::copy_msg_to_buffer(pdu, recfg_complete); tester.rrc.write_pdu(0x46, rb_id_t::RB_ID_SRB1, std::move(pdu)); tester.tic(); TESTASSERT(mac_ue.ue_bearers[rb_id_t::RB_ID_SRB1].direction == sched_interface::ue_bearer_cfg_t::BOTH); TESTASSERT(mac_ue.ue_bearers[rb_id_t::RB_ID_SRB2].direction == sched_interface::ue_bearer_cfg_t::BOTH); TESTASSERT(mac_ue.ue_bearers[rb_id_t::RB_ID_DRB1].direction == sched_interface::ue_bearer_cfg_t::BOTH); TESTASSERT(mac_ue.pucch_cfg.I_sr == recfg_r8.rr_cfg_ded.phys_cfg_ded.sched_request_cfg.setup().sr_cfg_idx); TESTASSERT(mac_ue.pucch_cfg.n_pucch_sr == recfg_r8.rr_cfg_ded.phys_cfg_ded.sched_request_cfg.setup().sr_pucch_res_idx); return SRSLTE_SUCCESS; } int test_intraenb_mobility(mobility_test_params test_params) { printf("\n===== TEST: test_intraenb_mobility() for event %s =====\n", test_params.to_string()); intraenb_mobility_tester tester{test_params}; srslte::unique_byte_buffer_t pdu; TESTASSERT(tester.generate_rrc_cfg() == SRSLTE_SUCCESS); TESTASSERT(tester.setup_rrc() == SRSLTE_SUCCESS); TESTASSERT(tester.run_preamble() == SRSLTE_SUCCESS); tester.pdcp.last_sdu.sdu = nullptr; tester.rlc.test_reset_all(); /* Receive MeasReport from UE (correct if PCI=2) */ if (test_params.fail_at == mobility_test_params::test_event::wrong_measreport) { uint8_t meas_report[] = {0x08, 0x10, 0x38, 0x74, 0x00, 0x0D, 0xBC, 0x80}; // PCI == 3 test_helpers::copy_msg_to_buffer(pdu, meas_report); } else { uint8_t meas_report[] = {0x08, 0x10, 0x38, 0x74, 0x00, 0x09, 0xBC, 0x80}; // PCI == 2 test_helpers::copy_msg_to_buffer(pdu, meas_report); } tester.rrc.write_pdu(tester.rnti, 1, std::move(pdu)); tester.tic(); TESTASSERT(tester.s1ap.last_ho_required.rrc_container == nullptr); /* Test Case: the MeasReport is not valid */ if (test_params.fail_at == mobility_test_params::test_event::wrong_measreport) { TESTASSERT(tester.rrc_log->warn_counter == 1); TESTASSERT(tester.pdcp.last_sdu.sdu == nullptr); return SRSLTE_SUCCESS; } TESTASSERT(tester.pdcp.last_sdu.sdu != nullptr); TESTASSERT(tester.s1ap.last_ho_required.rrc_container == nullptr); TESTASSERT(not tester.s1ap.last_enb_status.status_present); /* Test Case: Multiple concurrent MeasReports arrived. Only one HO procedure should be running */ if (test_params.fail_at == mobility_test_params::test_event::concurrent_ho) { tester.pdcp.last_sdu = {}; uint8_t meas_report[] = {0x08, 0x10, 0x38, 0x74, 0x00, 0x09, 0xBC, 0x80}; // PCI == 2 test_helpers::copy_msg_to_buffer(pdu, meas_report); tester.rrc.write_pdu(tester.rnti, 1, std::move(pdu)); tester.tic(); TESTASSERT(tester.pdcp.last_sdu.sdu == nullptr); return SRSLTE_SUCCESS; } /* Test Case: the HandoverCommand was sent to the lower layers */ TESTASSERT(tester.rrc_log->error_counter == 0); TESTASSERT(tester.pdcp.last_sdu.rnti == tester.rnti); TESTASSERT(tester.pdcp.last_sdu.lcid == 1); // SRB1 asn1::rrc::dl_dcch_msg_s ho_cmd; TESTASSERT(test_helpers::unpack_asn1(ho_cmd, srslte::make_span(tester.pdcp.last_sdu.sdu))); auto& recfg_r8 = ho_cmd.msg.c1().rrc_conn_recfg().crit_exts.c1().rrc_conn_recfg_r8(); TESTASSERT(recfg_r8.mob_ctrl_info_present); TESTASSERT(recfg_r8.mob_ctrl_info.new_ue_id.to_number() == tester.rnti); TESTASSERT(recfg_r8.mob_ctrl_info.target_pci == 2); TESTASSERT(recfg_r8.rr_cfg_ded_present); TESTASSERT(recfg_r8.rr_cfg_ded.phys_cfg_ded_present); const asn1::rrc::phys_cfg_ded_s& phy_cfg_ded = recfg_r8.rr_cfg_ded.phys_cfg_ded; TESTASSERT(phy_cfg_ded.sched_request_cfg_present); TESTASSERT(phy_cfg_ded.cqi_report_cfg_present); /* Test Case: The UE sends a C-RNTI CE. Bearers are reestablished */ tester.pdcp.last_sdu.sdu = nullptr; tester.rrc.upd_user(tester.rnti + 1, tester.rnti); TESTASSERT(tester.rlc.ue_db[tester.rnti].reest_sdu_counter == 0); TESTASSERT(tester.pdcp.last_sdu.sdu == nullptr); TESTASSERT(tester.phy.last_cfg.size() == 1 and tester.mac.ue_db[tester.rnti].supported_cc_list.size() == 1); TESTASSERT(tester.phy.last_cfg[0].enb_cc_idx == tester.mac.ue_db[tester.rnti].supported_cc_list[0].enb_cc_idx); /* Test Case: The UE receives a duplicate C-RNTI CE. Nothing should happen */ if (test_params.fail_at == mobility_test_params::test_event::duplicate_crnti_ce) { TESTASSERT(tester.rlc.ue_db[tester.rnti].reest_sdu_counter == 0); tester.rrc.upd_user(tester.rnti + 2, tester.rnti); TESTASSERT(tester.rlc.ue_db[tester.rnti].reest_sdu_counter == 0); TESTASSERT(tester.pdcp.last_sdu.sdu == nullptr); TESTASSERT(tester.rlc.ue_db[tester.rnti].last_sdu == nullptr); // No Reject sent } /* Test Case: Terminate first Handover. No extra messages should be sent DL. SR/CQI resources match recfg message */ uint8_t recfg_complete[] = {0x10, 0x00}; test_helpers::copy_msg_to_buffer(pdu, recfg_complete); tester.rrc.write_pdu(tester.rnti, rb_id_t::RB_ID_SRB2, std::move(pdu)); TESTASSERT(tester.pdcp.last_sdu.sdu == nullptr); sched_interface::ue_cfg_t& ue_cfg = tester.mac.ue_db[tester.rnti]; TESTASSERT(ue_cfg.pucch_cfg.sr_configured); TESTASSERT(ue_cfg.pucch_cfg.n_pucch_sr == phy_cfg_ded.sched_request_cfg.setup().sr_pucch_res_idx); TESTASSERT(ue_cfg.pucch_cfg.I_sr == phy_cfg_ded.sched_request_cfg.setup().sr_cfg_idx); TESTASSERT(ue_cfg.supported_cc_list[0].dl_cfg.cqi_report.pmi_idx == phy_cfg_ded.cqi_report_cfg.cqi_report_periodic.setup().cqi_pmi_cfg_idx); TESTASSERT(ue_cfg.pucch_cfg.n_pucch == phy_cfg_ded.cqi_report_cfg.cqi_report_periodic.setup().cqi_pucch_res_idx); /* Test Case: The RRC should be able to start a new handover */ uint8_t meas_report[] = {0x08, 0x10, 0x38, 0x74, 0x00, 0x05, 0xBC, 0x80}; // PCI == 1 test_helpers::copy_msg_to_buffer(pdu, meas_report); tester.rrc.write_pdu(tester.rnti, 1, std::move(pdu)); tester.tic(); TESTASSERT(tester.s1ap.last_ho_required.rrc_container == nullptr); TESTASSERT(tester.pdcp.last_sdu.sdu != nullptr); TESTASSERT(tester.s1ap.last_ho_required.rrc_container == nullptr); TESTASSERT(not tester.s1ap.last_enb_status.status_present); TESTASSERT(test_helpers::unpack_asn1(ho_cmd, srslte::make_span(tester.pdcp.last_sdu.sdu))); recfg_r8 = ho_cmd.msg.c1().rrc_conn_recfg().crit_exts.c1().rrc_conn_recfg_r8(); TESTASSERT(recfg_r8.mob_ctrl_info_present); TESTASSERT(recfg_r8.mob_ctrl_info.new_ue_id.to_number() == tester.rnti); TESTASSERT(recfg_r8.mob_ctrl_info.target_pci == 1); return SRSLTE_SUCCESS; } int main(int argc, char** argv) { srslte::logmap::set_default_log_level(srslte::LOG_LEVEL_INFO); using event = mobility_test_params::test_event; if (argc < 3) { argparse::usage(argv[0]); return -1; } argparse::parse_args(argc, argv); TESTASSERT(test_correct_insertion() == 0); TESTASSERT(test_correct_meascfg_calculation() == 0); // S1AP Handover TESTASSERT(test_s1ap_mobility(mobility_test_params{event::wrong_measreport}) == 0); TESTASSERT(test_s1ap_mobility(mobility_test_params{event::concurrent_ho}) == 0); TESTASSERT(test_s1ap_mobility(mobility_test_params{event::ho_prep_failure}) == 0); TESTASSERT(test_s1ap_mobility(mobility_test_params{event::success}) == 0); TESTASSERT(test_s1ap_tenb_mobility(mobility_test_params{event::success}) == 0); // intraeNB Handover TESTASSERT(test_intraenb_mobility(mobility_test_params{event::wrong_measreport}) == 0); TESTASSERT(test_intraenb_mobility(mobility_test_params{event::concurrent_ho}) == 0); TESTASSERT(test_intraenb_mobility(mobility_test_params{event::duplicate_crnti_ce}) == 0); TESTASSERT(test_intraenb_mobility(mobility_test_params{event::success}) == 0); printf("\nSuccess\n"); return SRSLTE_SUCCESS; }