mirror of https://github.com/PentHertz/srsLTE.git
159 lines
6.0 KiB
C++
159 lines
6.0 KiB
C++
/*
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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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#ifndef SRSLTE_PDCP_LTE_TEST_H
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#define SRSLTE_PDCP_LTE_TEST_H
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#include "pdcp_base_test.h"
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#include "srslte/test/ue_test_interfaces.h"
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#include "srslte/upper/pdcp_entity_lte.h"
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struct pdcp_lte_initial_state {
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uint32_t tx_count;
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uint32_t rx_hfn;
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uint32_t next_pdcp_rx_sn;
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uint32_t last_submitted_pdcp_rx_sn;
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};
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// Helper struct to hold a packet and the number of clock
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// ticks to run after writing the packet to test timeouts.
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struct pdcp_test_event_t {
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srslte::unique_byte_buffer_t pkt;
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uint32_t ticks = 0;
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};
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/*
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* Constant definitions that are common to multiple tests
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*/
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// Encryption and Integrity Keys
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std::array<uint8_t, 32> k_int = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x10,
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0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x20, 0x21,
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0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x30, 0x31};
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std::array<uint8_t, 32> k_enc = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x10,
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0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x20, 0x21,
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0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x30, 0x31};
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// Security Configuration, common to all tests.
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srslte::as_security_config_t sec_cfg = {
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k_int,
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k_enc,
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k_int,
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k_enc,
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srslte::INTEGRITY_ALGORITHM_ID_128_EIA2,
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srslte::CIPHERING_ALGORITHM_ID_128_EEA2,
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};
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// Test SDUs for tx
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uint8_t sdu1[] = {0x18, 0xe2};
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uint8_t sdu2[] = {0xde, 0xad};
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// This is the normal initial state. All state variables are set to zero
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pdcp_lte_initial_state normal_init_state = {};
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/*
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* Helper classes to reduce copy / pasting in setting up tests
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*/
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// PDCP helper to setup PDCP + Dummy
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class pdcp_lte_test_helper
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{
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public:
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pdcp_lte_test_helper(srslte::pdcp_config_t cfg, srslte::as_security_config_t sec_cfg, srslte::log_ref log) :
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rlc(log),
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rrc(log),
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gw(log),
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pdcp(&rlc, &rrc, &gw, &stack, log)
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{
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pdcp.init(0, cfg);
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pdcp.config_security(sec_cfg);
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pdcp.enable_integrity(srslte::DIRECTION_TXRX);
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pdcp.enable_encryption(srslte::DIRECTION_TXRX);
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}
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void set_pdcp_initial_state(pdcp_lte_initial_state init_state)
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{
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pdcp.set_tx_count(init_state.tx_count);
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pdcp.set_rx_hfn(init_state.rx_hfn);
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pdcp.set_next_pdcp_rx_sn(init_state.next_pdcp_rx_sn);
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pdcp.set_last_submitted_pdcp_rx_sn(init_state.last_submitted_pdcp_rx_sn);
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}
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rlc_dummy rlc;
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rrc_dummy rrc;
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gw_dummy gw;
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srsue::stack_test_dummy stack;
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srslte::pdcp_entity_lte pdcp;
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};
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// Helper function to generate PDUs
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srslte::unique_byte_buffer_t gen_expected_pdu(const srslte::unique_byte_buffer_t& in_sdu,
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uint32_t count,
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uint8_t pdcp_sn_len,
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srslte::pdcp_rb_type_t rb_type,
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srslte::as_security_config_t sec_cfg,
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srslte::byte_buffer_pool* pool,
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srslte::log_ref log)
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{
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srslte::pdcp_config_t cfg = {1,
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rb_type,
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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_lte_test_helper pdcp_hlp(cfg, sec_cfg, log);
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srslte::pdcp_entity_lte* pdcp = &pdcp_hlp.pdcp;
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rlc_dummy* rlc = &pdcp_hlp.rlc;
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pdcp_lte_initial_state init_state = {};
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init_state.tx_count = count;
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pdcp_hlp.set_pdcp_initial_state(init_state);
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srslte::unique_byte_buffer_t sdu = srslte::allocate_unique_buffer(*pool);
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*sdu = *in_sdu;
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pdcp->write_sdu(std::move(sdu), true);
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srslte::unique_byte_buffer_t out_pdu = srslte::allocate_unique_buffer(*pool);
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rlc->get_last_sdu(out_pdu);
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return out_pdu;
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}
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// Helper function to generate vector of PDU from a vector of TX_NEXTs for generating expected pdus
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std::vector<pdcp_test_event_t> gen_expected_pdus_vector(const srslte::unique_byte_buffer_t& in_sdu,
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const std::vector<uint32_t>& tx_nexts,
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uint8_t pdcp_sn_len,
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srslte::pdcp_rb_type_t rb_type,
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srslte::as_security_config_t sec_cfg,
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srslte::byte_buffer_pool* pool,
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srslte::log_ref log)
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{
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std::vector<pdcp_test_event_t> pdu_vec;
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for (uint32_t tx_next : tx_nexts) {
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pdcp_test_event_t event;
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event.pkt = gen_expected_pdu(in_sdu, tx_next, pdcp_sn_len, rb_type, sec_cfg, pool, log);
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event.ticks = 0;
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pdu_vec.push_back(std::move(event));
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}
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return pdu_vec;
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}
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#endif // SRSLTE_PDCP_NR_TEST_H
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