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Added append_bytes method to byte_buffer_t class. Continue to reduce boilerplate.

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master
Pedro Alvarez 5 years ago committed by Andre Puschmann
parent 59bc2baf3f
commit ceea761ca4
2 changed files with 135 additions and 168 deletions
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30
lib/include/srslte/common/common.h
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@ -97,7 +97,8 @@ namespace srslte {
* copy constructors & assignment operators for quick copying. Byte buffer
* holds a next pointer to support linked lists.
*****************************************************************************/
class byte_buffer_t{
class byte_buffer_t
{
public:
uint32_t N_bytes;
uint8_t buffer[SRSLTE_MAX_BUFFER_SIZE_BYTES];
@ -147,15 +148,9 @@ public:
timestamp_is_set = false;
#endif
}
uint32_t get_headroom()
{
return msg-buffer;
}
uint32_t get_headroom() { return msg - buffer; }
// Returns the remaining space from what is reported to be the length of msg
uint32_t get_tailroom()
{
return (sizeof(buffer) - (msg-buffer) - N_bytes);
}
uint32_t get_tailroom() { return (sizeof(buffer) - (msg - buffer) - N_bytes); }
long get_latency_us()
{
#ifdef ENABLE_TIMESTAMP
@ -177,6 +172,12 @@ public:
#endif
}
void append_bytes(uint8_t *buf, uint32_t size)
{
memcpy(&msg[N_bytes], buf, size);
N_bytes += size;
}
private:
#ifdef ENABLE_TIMESTAMP
struct timeval timestamp[3];
@ -200,12 +201,14 @@ struct bit_buffer_t{
timestamp_is_set = false;
#endif
}
bit_buffer_t(const bit_buffer_t& buf){
bit_buffer_t(const bit_buffer_t& buf)
{
msg = &buffer[SRSLTE_BUFFER_HEADER_OFFSET];
N_bits = buf.N_bits;
memcpy(msg, buf.msg, N_bits);
}
bit_buffer_t & operator= (const bit_buffer_t & buf){
bit_buffer_t& operator=(const bit_buffer_t& buf)
{
// avoid self assignment
if (&buf == this) {
return *this;
@ -223,10 +226,7 @@ struct bit_buffer_t{
timestamp_is_set = false;
#endif
}
uint32_t get_headroom()
{
return msg-buffer;
}
uint32_t get_headroom() { return msg - buffer; }
long get_latency_us()
{
#ifdef ENABLE_TIMESTAMP

73
lib/test/upper/pdcp_nr_test.cc
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@ -18,7 +18,6 @@
* and at http://www.gnu.org/licenses/.
*
*/
#include "pdcp_nr_test.h"
#include <iostream>
@ -40,35 +39,25 @@ pdcp_security_cfg sec_cfg = {
// Test SDUs for tx
uint8_t sdu1[] = {0x18, 0xE2};
uint32_t SDU1_LEN = 2;
// Test PDUs for rx (generated from SDU1)
uint8_t pdu1[] = {0x80, 0x00, 0x8f, 0xe3, 0xe0, 0xdf, 0x82, 0x92};
uint32_t PDU1_LEN = 8;
uint8_t pdu2[] = {0x88, 0x00, 0x8d, 0x2c, 0x47, 0x5e, 0xb1, 0x5b};
uint32_t PDU2_LEN = 8;
uint8_t pdu3[] = {0x80, 0x00, 0x97, 0xbe, 0xa3, 0x32, 0xfa, 0x61};
uint32_t PDU3_LEN = 8;
uint8_t pdu4[] = {0x80, 0x00, 0x00, 0x8f, 0xe3, 0xe0, 0xdf, 0x82, 0x92};
uint32_t PDU4_LEN = 9;
uint8_t pdu5[] = {0x82, 0x00, 0x00, 0x15, 0x01, 0xf4, 0xb0, 0xfc, 0xc5};
uint32_t PDU5_LEN = 9;
uint8_t pdu6[] = {0x80, 0x00, 0x00, 0xc2, 0x47, 0xa8, 0xdd, 0xc0, 0x73};
uint32_t PDU6_LEN = 9;
// Test SDUs for tx
uint8_t sdu2[] = {0xde, 0xad};
uint32_t SDU2_LEN = 2;
// Test PDUs for rx (generated from SDU2)
uint8_t pdu7[] = {0x80, 0x01, 0x5e, 0x3d, 0x64, 0xaf, 0xac, 0x7c};
uint32_t PDU7_LEN = 8;
/*
* Genric function to test transmission of in-sequence packets
@ -90,19 +79,15 @@ int test_tx(uint32_t n_packets,
srslte::pdcp_entity_nr* pdcp = &pdcp_hlp.pdcp;
rlc_dummy* rlc = &pdcp_hlp.rlc;
// Test SDU
srslte::unique_byte_buffer_t sdu = allocate_unique_buffer(*pool);
memcpy(sdu->msg, sdu1, SDU1_LEN);
sdu->N_bytes = SDU1_LEN;
// Run test
for (uint32_t i = 0; i < n_packets; ++i) {
// Test SDU
srslte::unique_byte_buffer_t sdu = allocate_unique_buffer(*pool);
memcpy(sdu->msg, sdu1, SDU1_LEN);
sdu->N_bytes = SDU1_LEN;
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);
@ -121,81 +106,68 @@ int test_tx_all(srslte::byte_buffer_pool* pool, srslte::log* log)
{
/*
* TX Test 1: PDCP Entity with SN LEN = 12
* PDCP entity configured with EIA2 and EEA2
* 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);
memcpy(pdu_exp_sn0_len12->msg, pdu1, PDU1_LEN);
pdu_exp_sn0_len12->N_bytes = PDU1_LEN;
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
* PDCP entity configured with EIA2 and EEA2
* 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);
memcpy(pdu_exp_sn2048_len12->msg, pdu2, PDU2_LEN);
pdu_exp_sn2048_len12->N_bytes = PDU2_LEN;
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
* PDCP entity configured with EIA2 and EEA2
* 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);
memcpy(pdu_exp_sn4096_len12->msg, pdu3, PDU3_LEN);
pdu_exp_sn4096_len12->N_bytes = PDU3_LEN;
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
* PDCP entity configured with EIA2 and EEA2
* 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);
memcpy(pdu_exp_sn0_len18->msg, pdu4, PDU4_LEN);
pdu_exp_sn0_len18->N_bytes = PDU4_LEN;
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
* PDCP entity configured with EIA2 and EEA2
* 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);
memcpy(pdu_exp_sn131072_len18->msg, pdu5, PDU5_LEN);
pdu_exp_sn131072_len18->N_bytes = PDU5_LEN;
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
* PDCP entity configured with EIA2 and EEA2
* 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);
memcpy(pdu_exp_sn262144_len18->msg, pdu6, PDU6_LEN);
pdu_exp_sn262144_len18->N_bytes = PDU6_LEN;
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. Tested 4097 packets received without losses.
* PDCP entity configured with EIA2 and EEA2
* Genric function to test reception of in-sequence packets
*/
int test_rx_in_sequence(uint64_t n_packets, uint8_t pdcp_sn_len, srslte::byte_buffer_pool* pool, srslte::log* log)
{
@ -224,23 +196,23 @@ int test_rx_in_sequence(uint64_t n_packets, uint8_t pdcp_sn_len, srslte::byte_bu
srslte::unique_byte_buffer_t sdu_act = allocate_unique_buffer(*pool);
srslte::unique_byte_buffer_t sdu_exp = allocate_unique_buffer(*pool);
memcpy(sdu_exp->msg, sdu1, SDU1_LEN);
sdu_exp->N_bytes = SDU1_LEN;
sdu_exp->append_bytes(sdu1, sizeof(sdu1));
// Generate test message and
// decript and check matching SDUs
// Generate test message and encript/decript SDU. Check match with original SDU
for (uint64_t i = 0; i < n_packets; ++i) {
srslte::unique_byte_buffer_t sdu = allocate_unique_buffer(*pool);
srslte::unique_byte_buffer_t pdu = allocate_unique_buffer(*pool);
memcpy(sdu->msg, sdu_exp->msg, SDU1_LEN);
sdu->N_bytes = SDU1_LEN;
sdu->append_bytes(sdu_exp->msg, sdu_exp->N_bytes);
// Generate encripted and integrity protected PDU
pdcp_tx->write_sdu(std::move(sdu), true);
rlc_tx->get_last_sdu(pdu);
// Decript and integrity check the PDU
pdcp_rx->write_pdu(std::move(pdu));
gw_rx->get_last_pdu(sdu_act);
// Check if resulting SDU matches original SDU
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]);
@ -268,16 +240,13 @@ int test_rx_out_of_order(uint8_t pdcp_sn_len, srslte::byte_buffer_pool* pool, sr
srslte::unique_byte_buffer_t sdu_act = allocate_unique_buffer(*pool);
srslte::unique_byte_buffer_t sdu_exp = allocate_unique_buffer(*pool);
memcpy(sdu_exp->msg, sdu2, SDU2_LEN);
sdu_exp->N_bytes = SDU2_LEN;
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);
memcpy(rx_pdu1->msg, pdu1, PDU1_LEN);
rx_pdu1->N_bytes = PDU1_LEN;
memcpy(rx_pdu7->msg, pdu7, PDU7_LEN);
rx_pdu7->N_bytes = PDU7_LEN;
rx_pdu1->append_bytes(pdu1, sizeof(pdu1));
rx_pdu7->append_bytes(pdu7, sizeof(pdu7));
// decript and check matching SDUs (out of order)
pdcp_rx->write_pdu(std::move(rx_pdu7));
@ -311,13 +280,11 @@ int test_rx_out_of_order_timeout(uint8_t pdcp_sn_len, srslte::byte_buffer_pool*
srslte::unique_byte_buffer_t sdu_act = allocate_unique_buffer(*pool);
srslte::unique_byte_buffer_t sdu_exp = allocate_unique_buffer(*pool);
memcpy(sdu_exp->msg, sdu2, SDU2_LEN);
sdu_exp->N_bytes = SDU2_LEN;
sdu_exp->append_bytes(sdu2, sizeof(sdu2));
// Generate encripted and integrity protected PDUs
srslte::unique_byte_buffer_t rx_pdu7 = allocate_unique_buffer(*pool);
memcpy(rx_pdu7->msg, pdu7, PDU7_LEN);
rx_pdu7->N_bytes = PDU7_LEN;
rx_pdu7->append_bytes(pdu7, sizeof(pdu7));
// decript and check matching SDUs (out of order)
pdcp_rx->write_pdu(std::move(rx_pdu7));

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