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211 lines
6.5 KiB
C++
211 lines
6.5 KiB
C++
5 years ago
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/*
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* Copyright 2013-2019 Software Radio Systems Limited
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*
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* This file is part of srsLTE.
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*
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* srsLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsLTE is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* A copy of the GNU Affero General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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#include "rlc_test_common.h"
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#include "srslte/common/log_filter.h"
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#include "srslte/config.h"
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#include "srslte/upper/rlc.h"
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#include "srslte/upper/rlc_um.h"
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#include <array>
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#include <iostream>
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#include <memory>
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#include <vector>
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#define TESTASSERT(cond) \
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{ \
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if (!(cond)) { \
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std::cout << "[" << __FUNCTION__ << "][Line " << __LINE__ << "]: FAIL at " << (#cond) << std::endl; \
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return -1; \
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} \
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}
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#define PCAP 0
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#define PCAP_CRNTI (0x1001)
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#define PCAP_TTI (666)
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using namespace srslte;
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#if PCAP
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#include "srslte/common/mac_nr_pcap.h"
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#include "srslte/common/mac_nr_pdu.h"
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static std::unique_ptr<srslte::mac_nr_pcap> pcap_handle = nullptr;
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#endif
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int write_pdu_to_pcap(const uint32_t lcid, const uint8_t* payload, const uint32_t len)
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{
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#if PCAP
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if (pcap_handle) {
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byte_buffer_t tx_buffer;
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srslte::nr_mac_pdu tx_pdu;
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tx_pdu.init_tx(&tx_buffer, len + 10);
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tx_pdu.add_sdu(lcid, payload, len);
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tx_pdu.pack();
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pcap_handle->write_dl_crnti(tx_buffer.msg, tx_buffer.N_bytes, PCAP_CRNTI, true, PCAP_TTI);
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return SRSLTE_SUCCESS;
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}
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#endif
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return SRSLTE_ERROR;
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}
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template <std::size_t N>
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srslte::byte_buffer_t make_pdu_and_log(const std::array<uint8_t, N>& tv)
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{
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srslte::byte_buffer_t pdu;
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memcpy(pdu.msg, tv.data(), tv.size());
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pdu.N_bytes = tv.size();
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write_pdu_to_pcap(4, tv.data(), tv.size());
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return pdu;
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}
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// Basic test to write UM PDU with 6 bit SN
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int rlc_um_nr_test1()
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{
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srslte::log_filter log1("RLC_UM_1");
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srslte::log_filter log2("RLC_UM_2");
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log1.set_level(srslte::LOG_LEVEL_DEBUG);
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log2.set_level(srslte::LOG_LEVEL_DEBUG);
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log1.set_hex_limit(-1);
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log2.set_hex_limit(-1);
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rlc_um_tester tester;
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srslte::timers timers(16);
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const uint32_t num_sdus = 5;
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int len = 0;
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rlc_um rlc1(&log1, 3, &tester, &tester, &timers);
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rlc_um rlc2(&log2, 3, &tester, &tester, &timers);
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rlc_config_t cnfg = rlc_config_t::default_rlc_um_nr_config(6);
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TESTASSERT(rlc1.configure(cnfg) == true);
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TESTASSERT(rlc2.configure(cnfg) == true);
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tester.set_expected_sdu_len(1);
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// Push 5 SDUs into RLC1
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byte_buffer_pool* pool = byte_buffer_pool::get_instance();
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unique_byte_buffer_t sdu_bufs[num_sdus];
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for (uint32_t i = 0; i < num_sdus; i++) {
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sdu_bufs[i] = srslte::allocate_unique_buffer(*pool, true);
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*sdu_bufs[i]->msg = i; // Write the index into the buffer
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sdu_bufs[i]->N_bytes = 1; // Give each buffer a size of 1 byte
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rlc1.write_sdu(std::move(sdu_bufs[i]));
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}
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TESTASSERT(14 == rlc1.get_buffer_state());
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// Read 5 PDUs from RLC1 (1 byte each)
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unique_byte_buffer_t pdu_bufs[num_sdus];
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for (uint32_t i = 0; i < num_sdus; i++) {
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pdu_bufs[i] = srslte::allocate_unique_buffer(*pool, true);
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len = rlc1.read_pdu(pdu_bufs[i]->msg, 4); // 3 bytes for header + payload
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pdu_bufs[i]->N_bytes = len;
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// write PCAP
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write_pdu_to_pcap(4, pdu_bufs[i]->msg, pdu_bufs[i]->N_bytes);
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}
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TESTASSERT(0 == rlc1.get_buffer_state());
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// TODO: add receive test
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return SRSLTE_SUCCESS;
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}
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// Basic test for SDU segmentation
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int rlc_um_nr_test2()
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{
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srslte::log_filter log1("RLC_UM_1");
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srslte::log_filter log2("RLC_UM_2");
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log1.set_level(srslte::LOG_LEVEL_DEBUG);
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log2.set_level(srslte::LOG_LEVEL_DEBUG);
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log1.set_hex_limit(-1);
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log2.set_hex_limit(-1);
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rlc_um_tester tester;
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srslte::timers timers(16);
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const uint32_t num_sdus = 1;
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const uint32_t sdu_size = 100;
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int len = 0;
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rlc_um rlc1(&log1, 3, &tester, &tester, &timers);
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rlc_um rlc2(&log2, 3, &tester, &tester, &timers);
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rlc_config_t cnfg = rlc_config_t::default_rlc_um_nr_config(6);
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TESTASSERT(rlc1.configure(cnfg) == true);
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TESTASSERT(rlc2.configure(cnfg) == true);
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tester.set_expected_sdu_len(1);
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// Push SDUs into RLC1
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byte_buffer_pool* pool = byte_buffer_pool::get_instance();
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unique_byte_buffer_t sdu_bufs[num_sdus];
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for (uint32_t i = 0; i < num_sdus; i++) {
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sdu_bufs[i] = srslte::allocate_unique_buffer(*pool, true);
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// Write the index into the buffer
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for (uint32_t k = 0; k < sdu_size; ++k) {
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sdu_bufs[i]->msg[k] = i;
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}
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sdu_bufs[i]->N_bytes = sdu_size;
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rlc1.write_sdu(std::move(sdu_bufs[i]));
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}
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// FIXME: check buffer state calculation
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TESTASSERT(103 == rlc1.get_buffer_state());
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// Read PDUs from RLC1 with grant of 25 Bytes each
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const uint32_t max_num_pdus = 10;
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unique_byte_buffer_t pdu_bufs[max_num_pdus];
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for (uint32_t i = 0; i < max_num_pdus; i++) {
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pdu_bufs[i] = srslte::allocate_unique_buffer(*pool, true);
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len = rlc1.read_pdu(pdu_bufs[i]->msg, 25); // 3 bytes for header + payload
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pdu_bufs[i]->N_bytes = len;
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// write PCAP
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write_pdu_to_pcap(4, pdu_bufs[i]->msg, pdu_bufs[i]->N_bytes);
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}
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TESTASSERT(0 == rlc1.get_buffer_state());
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// TODO: add receive test
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return SRSLTE_SUCCESS;
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}
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int main(int argc, char** argv)
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{
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#if PCAP
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pcap_handle = std::unique_ptr<srslte::mac_nr_pcap>(new srslte::mac_nr_pcap());
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pcap_handle->open("rlc_um_nr_test.pcap");
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#endif
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if (rlc_um_nr_test1()) {
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fprintf(stderr, "rlc_um_nr_test1() failed.\n");
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return SRSLTE_ERROR;
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}
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if (rlc_um_nr_test2()) {
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fprintf(stderr, "rlc_um_nr_test2() failed.\n");
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return SRSLTE_ERROR;
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}
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return SRSLTE_SUCCESS;
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}
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