/* * 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 "pdcp_nr_test.h" #include /* * Genric function to test transmission of in-sequence packets */ int test_tx(uint32_t n_packets, const pdcp_initial_state& init_state, uint8_t pdcp_sn_len, uint64_t n_pdus_exp, srslte::unique_byte_buffer_t pdu_exp, srslte::byte_buffer_pool* pool, srslte::log* log) { srslte::pdcp_config_t cfg = {1, srslte::PDCP_RB_IS_DRB, srslte::SECURITY_DIRECTION_UPLINK, srslte::SECURITY_DIRECTION_DOWNLINK, pdcp_sn_len, srslte::pdcp_t_reordering_t::ms500, srslte::pdcp_discard_timer_t::infinity}; pdcp_nr_test_helper pdcp_hlp(cfg, sec_cfg, log); srslte::pdcp_entity_nr* pdcp = &pdcp_hlp.pdcp; rlc_dummy* rlc = &pdcp_hlp.rlc; pdcp_hlp.set_pdcp_initial_state(init_state); // Run test for (uint32_t i = 0; i < n_packets; ++i) { // Test SDU srslte::unique_byte_buffer_t sdu = allocate_unique_buffer(*pool); sdu->append_bytes(sdu1, sizeof(sdu1)); pdcp->write_sdu(std::move(sdu), true); } srslte::unique_byte_buffer_t pdu_act = allocate_unique_buffer(*pool); rlc->get_last_sdu(pdu_act); TESTASSERT(rlc->rx_count == n_pdus_exp); TESTASSERT(compare_two_packets(pdu_act, pdu_exp) == 0); return 0; } /* * TX Test: PDCP Entity with SN LEN = 12 and 18. * PDCP entity configured with EIA2 and EEA2 */ int test_tx_all(srslte::byte_buffer_pool* pool, srslte::log* log) { uint64_t n_packets; /* * TX Test 1: PDCP Entity with SN LEN = 12 * TX_NEXT = 0. * Input: {0x18, 0xE2} * Output: PDCP Header {0x80, 0x00}, Ciphered Text {0x8f, 0xe3}, MAC-I {0xe0, 0xdf, 0x82, 0x92} */ n_packets = 1; srslte::unique_byte_buffer_t pdu_exp_count0_len12 = allocate_unique_buffer(*pool); pdu_exp_count0_len12->append_bytes(pdu1_count0_snlen12, sizeof(pdu1_count0_snlen12)); TESTASSERT(test_tx(n_packets, normal_init_state, srslte::PDCP_SN_LEN_12, n_packets, std::move(pdu_exp_count0_len12), pool, log) == 0); /* * TX Test 2: PDCP Entity with SN LEN = 12 * TX_NEXT = 2048. * Input: {0x18, 0xE2} * Output: PDCP Header {0x88, 0x00}, Ciphered Text {0x8d, 0x2c}, MAC-I {0x47, 0x5e, 0xb1, 0x5b} */ n_packets = 2049; srslte::unique_byte_buffer_t pdu_exp_count2048_len12 = allocate_unique_buffer(*pool); pdu_exp_count2048_len12->append_bytes(pdu1_count2048_snlen12, sizeof(pdu1_count2048_snlen12)); TESTASSERT(test_tx(n_packets, normal_init_state, srslte::PDCP_SN_LEN_12, n_packets, std::move(pdu_exp_count2048_len12), pool, log) == 0); /* * TX Test 3: PDCP Entity with SN LEN = 12 * TX_NEXT = 4096. * Input: {0x18, 0xE2} * Output: PDCP Header {0x80,0x00}, Ciphered Text {0x97, 0xbe}, MAC-I {0xa3, 0x32, 0xfa, 0x61} */ n_packets = 4097; srslte::unique_byte_buffer_t pdu_exp_count4096_len12 = allocate_unique_buffer(*pool); pdu_exp_count4096_len12->append_bytes(pdu1_count4096_snlen12, sizeof(pdu1_count4096_snlen12)); TESTASSERT(test_tx(n_packets, normal_init_state, srslte::PDCP_SN_LEN_12, n_packets, std::move(pdu_exp_count4096_len12), pool, log) == 0); /* * TX Test 4: PDCP Entity with SN LEN = 18 * TX_NEXT = 0. * Input: {0x18, 0xE2} * Output: PDCP Header {0x80, 0x80, 0x00}, Ciphered Text {0x8f, 0xe3}, MAC-I {0xe0, 0xdf, 0x82, 0x92} */ n_packets = 1; srslte::unique_byte_buffer_t pdu_exp_count0_len18 = allocate_unique_buffer(*pool); pdu_exp_count0_len18->append_bytes(pdu1_count0_snlen18, sizeof(pdu1_count0_snlen18)); TESTASSERT(test_tx(n_packets, normal_init_state, srslte::PDCP_SN_LEN_18, n_packets, std::move(pdu_exp_count0_len18), pool, log) == 0); /* * TX Test 5: PDCP Entity with SN LEN = 18 * TX_NEXT = 131072. * Input: {0x18, 0xE2} * Output: PDCP Header {0x82, 0x00, 0x00}, Ciphered Text {0x15, 0x01}, MAC-I {0xf4, 0xb0, 0xfc, 0xc5} */ n_packets = 131073; srslte::unique_byte_buffer_t pdu_exp_sn131072_len18 = allocate_unique_buffer(*pool); pdu_exp_sn131072_len18->append_bytes(pdu1_count131072_snlen18, sizeof(pdu1_count131072_snlen18)); TESTASSERT(test_tx(n_packets, normal_init_state, srslte::PDCP_SN_LEN_18, n_packets, std::move(pdu_exp_sn131072_len18), pool, log) == 0); /* * TX Test 6: PDCP Entity with SN LEN = 18 * TX_NEXT = 262144. * Input: {0x18, 0xE2} * Output: PDCP Header {0x80, 0x00, 0x00}, Ciphered Text {0xc2, 0x47}, MAC-I {0xa8, 0xdd, 0xc0, 0x73} */ n_packets = 262145; srslte::unique_byte_buffer_t pdu_exp_count262144_len18 = allocate_unique_buffer(*pool); pdu_exp_count262144_len18->append_bytes(pdu1_count262144_snlen18, sizeof(pdu1_count262144_snlen18)); TESTASSERT(test_tx(n_packets, normal_init_state, srslte::PDCP_SN_LEN_18, n_packets, std::move(pdu_exp_count262144_len18), pool, log) == 0); /* * TX Test 7: PDCP Entity with SN LEN = 12 * Test TX at COUNT wraparound. * Should print a warning and drop all packets after wraparound. */ n_packets = 5; srslte::unique_byte_buffer_t pdu_exp_count4294967295_len12 = allocate_unique_buffer(*pool); pdu_exp_count4294967295_len12->append_bytes(pdu1_count4294967295_snlen12, sizeof(pdu1_count4294967295_snlen12)); TESTASSERT(test_tx(n_packets, near_wraparound_init_state, srslte::PDCP_SN_LEN_12, 1, std::move(pdu_exp_count4294967295_len12), pool, log) == 0); /* * TX Test 8: PDCP Entity with SN LEN = 18 * Test TX at COUNT wraparound. * Should print a warning and drop all packets after wraparound. */ n_packets = 5; srslte::unique_byte_buffer_t pdu_exp_count4294967295_len18 = allocate_unique_buffer(*pool); pdu_exp_count4294967295_len18->append_bytes(pdu1_count4294967295_snlen18, sizeof(pdu1_count4294967295_snlen18)); TESTASSERT(test_tx(n_packets, near_wraparound_init_state, srslte::PDCP_SN_LEN_18, 1, std::move(pdu_exp_count4294967295_len18), pool, log) == 0); return 0; } // Setup all tests int run_all_tests(srslte::byte_buffer_pool* pool) { // Setup log srslte::log_filter log("PDCP NR Test TX"); log.set_level(srslte::LOG_LEVEL_DEBUG); log.set_hex_limit(128); TESTASSERT(test_tx_all(pool, &log) == 0); return 0; } int main() { if (run_all_tests(srslte::byte_buffer_pool::get_instance()) != SRSLTE_SUCCESS) { fprintf(stderr, "pdcp_nr_tests_tx() failed\n"); return SRSLTE_ERROR; } srslte::byte_buffer_pool::cleanup(); return SRSLTE_SUCCESS; }