From 43c68fe78b01168d7bef54f64c30bc6d09964b33 Mon Sep 17 00:00:00 2001 From: Pedro Alvarez Date: Fri, 4 Oct 2019 17:30:01 +0100 Subject: [PATCH] Sarting to add test for out of order wrap-around. --- lib/test/upper/pdcp_nr_test.cc | 292 ++++++++++++++++++++++++--------- 1 file changed, 215 insertions(+), 77 deletions(-) diff --git a/lib/test/upper/pdcp_nr_test.cc b/lib/test/upper/pdcp_nr_test.cc index 5cae58879..89f0ded92 100644 --- a/lib/test/upper/pdcp_nr_test.cc +++ b/lib/test/upper/pdcp_nr_test.cc @@ -40,6 +40,8 @@ pdcp_security_cfg sec_cfg = { // Test SDUs for tx uint8_t sdu1[] = {0x18, 0xE2}; +uint8_t sdu2[] = {0xde, 0xad}; + // Test PDUs for rx (generated from SDU1) uint8_t pdu1[] = {0x80, 0x00, 0x8f, 0xe3, 0xe0, 0xdf, 0x82, 0x92}; @@ -53,9 +55,6 @@ uint8_t pdu5[] = {0x82, 0x00, 0x00, 0x15, 0x01, 0xf4, 0xb0, 0xfc, 0xc5}; uint8_t pdu6[] = {0x80, 0x00, 0x00, 0xc2, 0x47, 0xa8, 0xdd, 0xc0, 0x73}; -// Test SDUs for tx -uint8_t sdu2[] = {0xde, 0xad}; - // Test PDUs for rx (generated from SDU2) uint8_t pdu7[] = {0x80, 0x01, 0x5e, 0x3d, 0x64, 0xaf, 0xac, 0x7c}; @@ -98,74 +97,6 @@ int test_tx(uint32_t n_packets, return 0; } -/* - * TX Test: PDCP Entity with SN LEN = 12 and 18. Tested COUNT = 0, 2048 and 4096 - * PDCP entity configured with EIA2 and EEA2 - */ -int test_tx_all(srslte::byte_buffer_pool* pool, srslte::log* log) -{ - /* - * 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} - */ - srslte::unique_byte_buffer_t pdu_exp_sn0_len12 = allocate_unique_buffer(*pool); - pdu_exp_sn0_len12->append_bytes(pdu1, sizeof(pdu1)); - TESTASSERT(test_tx(1, srslte::PDCP_SN_LEN_12, std::move(pdu_exp_sn0_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} - */ - srslte::unique_byte_buffer_t pdu_exp_sn2048_len12 = allocate_unique_buffer(*pool); - pdu_exp_sn2048_len12->append_bytes(pdu2, sizeof(pdu2)); - TESTASSERT(test_tx(2049, srslte::PDCP_SN_LEN_12, std::move(pdu_exp_sn2048_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} - */ - srslte::unique_byte_buffer_t pdu_exp_sn4096_len12 = allocate_unique_buffer(*pool); - pdu_exp_sn4096_len12->append_bytes(pdu3, sizeof(pdu3)); - TESTASSERT(test_tx(4097, srslte::PDCP_SN_LEN_12, std::move(pdu_exp_sn4096_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} - */ - srslte::unique_byte_buffer_t pdu_exp_sn0_len18 = allocate_unique_buffer(*pool); - pdu_exp_sn0_len18->append_bytes(pdu4, sizeof(pdu4)); - TESTASSERT(test_tx(1, srslte::PDCP_SN_LEN_18, std::move(pdu_exp_sn0_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} - */ - srslte::unique_byte_buffer_t pdu_exp_sn131072_len18 = allocate_unique_buffer(*pool); - pdu_exp_sn131072_len18->append_bytes(pdu5, sizeof(pdu5)); - TESTASSERT(test_tx(131073, srslte::PDCP_SN_LEN_18, 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} - */ - srslte::unique_byte_buffer_t pdu_exp_sn262144_len18 = allocate_unique_buffer(*pool); - pdu_exp_sn262144_len18->append_bytes(pdu6, sizeof(pdu6)); - TESTASSERT(test_tx(262145, srslte::PDCP_SN_LEN_18, std::move(pdu_exp_sn262144_len18), pool, log) == 0); - return 0; -} - /* * Genric function to test reception of in-sequence packets */ @@ -242,7 +173,7 @@ int test_rx_out_of_order(uint8_t pdcp_sn_len, srslte::byte_buffer_pool* pool, sr srslte::unique_byte_buffer_t sdu_exp = allocate_unique_buffer(*pool); sdu_exp->append_bytes(sdu2, sizeof(sdu2)); - // Generate encripted and integrity protected PDUs + // Get encripted and integrity protected PDUs used for testing srslte::unique_byte_buffer_t rx_pdu1 = allocate_unique_buffer(*pool); srslte::unique_byte_buffer_t rx_pdu7 = allocate_unique_buffer(*pool); rx_pdu1->append_bytes(pdu1, sizeof(pdu1)); @@ -306,6 +237,217 @@ int test_rx_out_of_order_timeout(uint8_t pdcp_sn_len, srslte::byte_buffer_pool* } return 0; } + +/* + * RX Test: PDCP Entity with packtes received out of order + * PDCP entity configured with EIA2 and EEA2 + */ +int test_rx_out_of_order_wraparound(uint8_t pdcp_sn_len, srslte::byte_buffer_pool* pool, srslte::log* log) +{ + srslte::pdcp_config_t cfg_rx = {1, + srslte::PDCP_RB_IS_DRB, + srslte::SECURITY_DIRECTION_DOWNLINK, + srslte::SECURITY_DIRECTION_UPLINK, + pdcp_sn_len, + srslte::pdcp_t_reordering_t::ms500}; + + pdcp_nr_test_helper pdcp_rx_hlp(cfg_rx, sec_cfg, log); + srslte::pdcp_entity_nr* pdcp_rx = &pdcp_rx_hlp.pdcp; + gw_dummy* gw_rx = &pdcp_rx_hlp.gw; + + srslte::unique_byte_buffer_t sdu_act = allocate_unique_buffer(*pool); + srslte::unique_byte_buffer_t sdu_exp = allocate_unique_buffer(*pool); + sdu_exp->append_bytes(sdu2, sizeof(sdu2)); + + // Generate encripted and integrity protected PDUs + srslte::unique_byte_buffer_t rx_pdu1 = allocate_unique_buffer(*pool); + srslte::unique_byte_buffer_t rx_pdu7 = allocate_unique_buffer(*pool); + rx_pdu1->append_bytes(pdu1, sizeof(pdu1)); + rx_pdu7->append_bytes(pdu7, sizeof(pdu7)); + + + pdcp_rx->write_pdu(std::move(rx_pdu1)); + // decript and check matching SDUs (out of order) + pdcp_rx->write_pdu(std::move(rx_pdu7)); + gw_rx->get_last_pdu(sdu_act); + + TESTASSERT(sdu_exp->N_bytes == sdu_act->N_bytes); + for (uint32_t j = 0; j < sdu_act->N_bytes; ++j) { + TESTASSERT(sdu_exp->msg[j] == sdu_act->msg[j]); + } + return 0; +} + +int test_rx_out_of_order(uint64_t n_packets, uint8_t pdcp_sn_len, srslte::byte_buffer_pool* pool, srslte::log* log) +{ + + srslte::pdcp_config_t cfg_tx = {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_config_t cfg_rx = {1, + srslte::PDCP_RB_IS_DRB, + srslte::SECURITY_DIRECTION_DOWNLINK, + srslte::SECURITY_DIRECTION_UPLINK, + pdcp_sn_len, + srslte::pdcp_t_reordering_t::ms500}; + + pdcp_nr_test_helper pdcp_hlp_tx(cfg_tx, sec_cfg, log); + srslte::pdcp_entity_nr* pdcp_tx = &pdcp_hlp_tx.pdcp; + rlc_dummy* rlc_tx = &pdcp_hlp_tx.rlc; + + pdcp_nr_test_helper pdcp_hlp_rx(cfg_rx, sec_cfg, log); + srslte::pdcp_entity_nr* pdcp_rx = &pdcp_hlp_rx.pdcp; + gw_dummy* gw_rx = &pdcp_hlp_rx.gw; + + // Generate test message and encript/decript SDU. Check match with original SDU + for (uint64_t i = 0; i < n_packets - 1; ++i) { + srslte::unique_byte_buffer_t sdu = allocate_unique_buffer(*pool); + sdu->append_bytes(sdu1, sizeof(sdu1)); + + // Generate encripted and integrity protected PDU + pdcp_tx->write_sdu(std::move(sdu), true); + + // Decript and integrity check the PDU + srslte::unique_byte_buffer_t pdu = allocate_unique_buffer(*pool); + rlc_tx->get_last_sdu(pdu); + pdcp_rx->write_pdu(std::move(pdu)); + } + + // Write PDUs into tx entity to get expected PDUs + srslte::unique_byte_buffer_t tx_sdu_out2 = allocate_unique_buffer(*pool); + tx_sdu_out2->append_bytes(sdu2, sizeof(sdu2)); + pdcp_tx->write_sdu(std::move(tx_sdu_out2), true); + + srslte::unique_byte_buffer_t tx_pdu_out2 = allocate_unique_buffer(*pool); + rlc_tx->get_last_sdu(tx_pdu_out2); + + srslte::unique_byte_buffer_t tx_sdu_out1 = allocate_unique_buffer(*pool); + tx_sdu_out1->append_bytes(sdu1, sizeof(sdu1)); + pdcp_tx->write_sdu(std::move(tx_sdu_out1), true); + + srslte::unique_byte_buffer_t tx_pdu_out1 = allocate_unique_buffer(*pool); + rlc_tx->get_last_sdu(tx_pdu_out1); + + // Write PDUs out-of-order into rx entity to see if re-ordering is OK. + pdcp_rx->write_pdu(std::move(tx_pdu_out1)); + pdcp_rx->write_pdu(std::move(tx_pdu_out2)); + + // Test actual reception + srslte::unique_byte_buffer_t sdu_act = allocate_unique_buffer(*pool); + gw_rx->get_last_pdu(sdu_act); + + 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) +{ + /* + * 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} + */ + srslte::unique_byte_buffer_t pdu_exp_sn0_len12 = allocate_unique_buffer(*pool); + pdu_exp_sn0_len12->append_bytes(pdu1, sizeof(pdu1)); + TESTASSERT(test_tx(1, srslte::PDCP_SN_LEN_12, std::move(pdu_exp_sn0_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} + */ + srslte::unique_byte_buffer_t pdu_exp_sn2048_len12 = allocate_unique_buffer(*pool); + pdu_exp_sn2048_len12->append_bytes(pdu2, sizeof(pdu2)); + TESTASSERT(test_tx(2049, srslte::PDCP_SN_LEN_12, std::move(pdu_exp_sn2048_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} + */ + srslte::unique_byte_buffer_t pdu_exp_sn4096_len12 = allocate_unique_buffer(*pool); + pdu_exp_sn4096_len12->append_bytes(pdu3, sizeof(pdu3)); + TESTASSERT(test_tx(4097, srslte::PDCP_SN_LEN_12, std::move(pdu_exp_sn4096_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} + */ + srslte::unique_byte_buffer_t pdu_exp_sn0_len18 = allocate_unique_buffer(*pool); + pdu_exp_sn0_len18->append_bytes(pdu4, sizeof(pdu4)); + TESTASSERT(test_tx(1, srslte::PDCP_SN_LEN_18, std::move(pdu_exp_sn0_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} + */ + srslte::unique_byte_buffer_t pdu_exp_sn131072_len18 = allocate_unique_buffer(*pool); + pdu_exp_sn131072_len18->append_bytes(pdu5, sizeof(pdu5)); + TESTASSERT(test_tx(131073, srslte::PDCP_SN_LEN_18, 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} + */ + srslte::unique_byte_buffer_t pdu_exp_sn262144_len18 = allocate_unique_buffer(*pool); + pdu_exp_sn262144_len18->append_bytes(pdu6, sizeof(pdu6)); + TESTASSERT(test_tx(262145, srslte::PDCP_SN_LEN_18, std::move(pdu_exp_sn262144_len18), pool, log) == 0); + return 0; +} + +/* + * RX Test: PDCP Entity with SN LEN = 12 and 18. + * PDCP entity configured with EIA2 and EEA2 + */ +int test_rx_all(srslte::byte_buffer_pool* pool, srslte::log* log) +{ + /* + * RX Test 1: PDCP Entity with SN LEN = 12 + * Test In-sequence reception of 4097 packets + */ + TESTASSERT(test_rx_in_sequence(4097, srslte::PDCP_SN_LEN_12, pool, log) == 0); + + /* + * RX Test 2: PDCP Entity with SN LEN = 12 + * Test In-sequence reception of 4294967297 packets. This tests SN wrap-around + */ + // TESTASSERT(test_rx_in_sequence(4294967297, srslte::PDCP_SN_LEN_12, pool, &log) == 0); + + /* + * RX Test 3: PDCP Entity with SN LEN = 18 + * Test In-sequence reception of 262145 packets. + */ + TESTASSERT(test_rx_in_sequence(262145, srslte::PDCP_SN_LEN_18, pool, log) == 0); + + /* + * RX Test 4: PDCP Entity with SN LEN = 12 + * Test Reception of one out-of-order packet. + */ + TESTASSERT(test_rx_out_of_order(srslte::PDCP_SN_LEN_12, pool, log) == 0); + + /* + * RX Test 5: PDCP Entity with SN LEN = 12 + * Test timeout of t-Reordering when one packet is lost. + */ + TESTASSERT(test_rx_out_of_order_timeout(srslte::PDCP_SN_LEN_12, pool, log) == 0); + + return 0; +} // Setup all tests int run_all_tests(srslte::byte_buffer_pool* pool) { @@ -315,11 +457,7 @@ int run_all_tests(srslte::byte_buffer_pool* pool) log.set_hex_limit(128); TESTASSERT(test_tx_all(pool, &log) == 0); - TESTASSERT(test_rx_in_sequence(4097, srslte::PDCP_SN_LEN_12, pool, &log) == 0); - // TESTASSERT(test_rx_in_sequence(4294967297, srslte::PDCP_SN_LEN_12, pool, &log) == 0); - TESTASSERT(test_rx_in_sequence(262145, srslte::PDCP_SN_LEN_18, pool, &log) == 0); - TESTASSERT(test_rx_out_of_order(srslte::PDCP_SN_LEN_12, pool, &log) == 0); - TESTASSERT(test_rx_out_of_order_timeout(srslte::PDCP_SN_LEN_12, pool, &log) == 0); + TESTASSERT(test_rx_all(pool, &log) == 0); // TESTASSERT(test_rx_out_of_order_wraparound(srslte::PDCP_SN_LEN_12, pool, &log) == 0); return 0; }