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/*
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* Copyright 2013-2020 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 "pdcp_nr_test.h"
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#include <numeric>
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/*
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* Genric function to test transmission of in-sequence packets
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*/
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int test_tx(uint32_t n_packets,
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const pdcp_initial_state& init_state,
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uint8_t pdcp_sn_len,
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uint64_t n_pdus_exp,
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srslte::unique_byte_buffer_t pdu_exp,
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srslte::byte_buffer_pool* pool,
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srslte::log* log)
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{
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srslte::pdcp_config_t cfg = {1,
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srslte::PDCP_RB_IS_DRB,
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srslte::SECURITY_DIRECTION_UPLINK,
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srslte::SECURITY_DIRECTION_DOWNLINK,
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pdcp_sn_len,
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srslte::pdcp_t_reordering_t::ms500,
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srslte::pdcp_discard_timer_t::infinity};
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pdcp_nr_test_helper pdcp_hlp(cfg, sec_cfg, log);
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srslte::pdcp_entity_nr* pdcp = &pdcp_hlp.pdcp;
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rlc_dummy* rlc = &pdcp_hlp.rlc;
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pdcp_hlp.set_pdcp_initial_state(init_state);
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// Run test
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for (uint32_t i = 0; i < n_packets; ++i) {
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// Test SDU
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srslte::unique_byte_buffer_t sdu = allocate_unique_buffer(*pool);
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sdu->append_bytes(sdu1, sizeof(sdu1));
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pdcp->write_sdu(std::move(sdu), true);
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}
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srslte::unique_byte_buffer_t pdu_act = allocate_unique_buffer(*pool);
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rlc->get_last_sdu(pdu_act);
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TESTASSERT(rlc->rx_count == n_pdus_exp);
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TESTASSERT(compare_two_packets(pdu_act, pdu_exp) == 0);
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return 0;
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}
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/*
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* TX Test: PDCP Entity with SN LEN = 12 and 18.
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* PDCP entity configured with EIA2 and EEA2
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*/
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int test_tx_all(srslte::byte_buffer_pool* pool, srslte::log* log)
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{
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uint64_t n_packets;
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/*
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* TX Test 1: PDCP Entity with SN LEN = 12
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* TX_NEXT = 0.
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* Input: {0x18, 0xE2}
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* Output: PDCP Header {0x80, 0x00}, Ciphered Text {0x8f, 0xe3}, MAC-I {0xe0, 0xdf, 0x82, 0x92}
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*/
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n_packets = 1;
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srslte::unique_byte_buffer_t pdu_exp_count0_len12 = allocate_unique_buffer(*pool);
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pdu_exp_count0_len12->append_bytes(pdu1_count0_snlen12, sizeof(pdu1_count0_snlen12));
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TESTASSERT(test_tx(n_packets,
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normal_init_state,
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srslte::PDCP_SN_LEN_12,
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n_packets,
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std::move(pdu_exp_count0_len12),
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pool,
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log) == 0);
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/*
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* TX Test 2: PDCP Entity with SN LEN = 12
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* TX_NEXT = 2048.
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* Input: {0x18, 0xE2}
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* Output: PDCP Header {0x88, 0x00}, Ciphered Text {0x8d, 0x2c}, MAC-I {0x47, 0x5e, 0xb1, 0x5b}
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*/
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n_packets = 2049;
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srslte::unique_byte_buffer_t pdu_exp_count2048_len12 = allocate_unique_buffer(*pool);
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pdu_exp_count2048_len12->append_bytes(pdu1_count2048_snlen12, sizeof(pdu1_count2048_snlen12));
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TESTASSERT(test_tx(n_packets,
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normal_init_state,
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srslte::PDCP_SN_LEN_12,
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n_packets,
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std::move(pdu_exp_count2048_len12),
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pool,
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log) == 0);
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/*
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* TX Test 3: PDCP Entity with SN LEN = 12
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* TX_NEXT = 4096.
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* Input: {0x18, 0xE2}
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* Output: PDCP Header {0x80,0x00}, Ciphered Text {0x97, 0xbe}, MAC-I {0xa3, 0x32, 0xfa, 0x61}
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*/
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n_packets = 4097;
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srslte::unique_byte_buffer_t pdu_exp_count4096_len12 = allocate_unique_buffer(*pool);
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pdu_exp_count4096_len12->append_bytes(pdu1_count4096_snlen12, sizeof(pdu1_count4096_snlen12));
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TESTASSERT(test_tx(n_packets,
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normal_init_state,
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srslte::PDCP_SN_LEN_12,
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n_packets,
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std::move(pdu_exp_count4096_len12),
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pool,
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log) == 0);
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/*
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* TX Test 4: PDCP Entity with SN LEN = 18
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* TX_NEXT = 0.
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* Input: {0x18, 0xE2}
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* Output: PDCP Header {0x80, 0x80, 0x00}, Ciphered Text {0x8f, 0xe3}, MAC-I {0xe0, 0xdf, 0x82, 0x92}
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*/
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n_packets = 1;
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srslte::unique_byte_buffer_t pdu_exp_count0_len18 = allocate_unique_buffer(*pool);
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pdu_exp_count0_len18->append_bytes(pdu1_count0_snlen18, sizeof(pdu1_count0_snlen18));
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TESTASSERT(test_tx(n_packets,
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normal_init_state,
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srslte::PDCP_SN_LEN_18,
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n_packets,
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std::move(pdu_exp_count0_len18),
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pool,
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log) == 0);
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/*
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* TX Test 5: PDCP Entity with SN LEN = 18
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* TX_NEXT = 131072.
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* Input: {0x18, 0xE2}
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* Output: PDCP Header {0x82, 0x00, 0x00}, Ciphered Text {0x15, 0x01}, MAC-I {0xf4, 0xb0, 0xfc, 0xc5}
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*/
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n_packets = 131073;
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srslte::unique_byte_buffer_t pdu_exp_sn131072_len18 = allocate_unique_buffer(*pool);
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pdu_exp_sn131072_len18->append_bytes(pdu1_count131072_snlen18, sizeof(pdu1_count131072_snlen18));
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TESTASSERT(test_tx(n_packets,
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normal_init_state,
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srslte::PDCP_SN_LEN_18,
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n_packets,
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std::move(pdu_exp_sn131072_len18),
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pool,
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log) == 0);
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/*
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* TX Test 6: PDCP Entity with SN LEN = 18
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* TX_NEXT = 262144.
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* Input: {0x18, 0xE2}
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* Output: PDCP Header {0x80, 0x00, 0x00}, Ciphered Text {0xc2, 0x47}, MAC-I {0xa8, 0xdd, 0xc0, 0x73}
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*/
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n_packets = 262145;
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srslte::unique_byte_buffer_t pdu_exp_count262144_len18 = allocate_unique_buffer(*pool);
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pdu_exp_count262144_len18->append_bytes(pdu1_count262144_snlen18, sizeof(pdu1_count262144_snlen18));
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TESTASSERT(test_tx(n_packets,
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normal_init_state,
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srslte::PDCP_SN_LEN_18,
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n_packets,
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std::move(pdu_exp_count262144_len18),
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pool,
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log) == 0);
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/*
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* TX Test 7: PDCP Entity with SN LEN = 12
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* Test TX at COUNT wraparound.
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* Should print a warning and drop all packets after wraparound.
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*/
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n_packets = 5;
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srslte::unique_byte_buffer_t pdu_exp_count4294967295_len12 = allocate_unique_buffer(*pool);
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pdu_exp_count4294967295_len12->append_bytes(pdu1_count4294967295_snlen12, sizeof(pdu1_count4294967295_snlen12));
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TESTASSERT(test_tx(n_packets,
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near_wraparound_init_state,
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srslte::PDCP_SN_LEN_12,
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1,
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std::move(pdu_exp_count4294967295_len12),
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pool,
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log) == 0);
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/*
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* TX Test 8: PDCP Entity with SN LEN = 18
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* Test TX at COUNT wraparound.
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* Should print a warning and drop all packets after wraparound.
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*/
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n_packets = 5;
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srslte::unique_byte_buffer_t pdu_exp_count4294967295_len18 = allocate_unique_buffer(*pool);
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pdu_exp_count4294967295_len18->append_bytes(pdu1_count4294967295_snlen18, sizeof(pdu1_count4294967295_snlen18));
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TESTASSERT(test_tx(n_packets,
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near_wraparound_init_state,
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srslte::PDCP_SN_LEN_18,
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1,
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std::move(pdu_exp_count4294967295_len18),
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pool,
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log) == 0);
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return 0;
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}
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// Setup all tests
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int run_all_tests(srslte::byte_buffer_pool* pool)
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{
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// Setup log
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srslte::log_filter log("PDCP NR Test TX");
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log.set_level(srslte::LOG_LEVEL_DEBUG);
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log.set_hex_limit(128);
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TESTASSERT(test_tx_all(pool, &log) == 0);
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return 0;
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}
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int main()
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{
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if (run_all_tests(srslte::byte_buffer_pool::get_instance()) != SRSLTE_SUCCESS) {
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fprintf(stderr, "pdcp_nr_tests_tx() failed\n");
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return SRSLTE_ERROR;
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}
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srslte::byte_buffer_pool::cleanup();
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return SRSLTE_SUCCESS;
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}
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