5g-team
/
srsRAN_4G
mirror of https://github.com/pvnis/srsRAN_4G.git
2
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Changed PDCP NR read_data_header to return SN.

Browse Source
master
Pedro Alvarez 6 years ago committed by Andre Puschmann
parent f90b69e5f4
commit 61051b4cb3
2 changed files with 13 additions and 12 deletions
Show Stats Download Patch File Download Diff File

8
lib/include/srslte/upper/pdcp_entity_nr.h
Unescape Escape View File

@ -74,10 +74,10 @@ private:
uint32_t window_size = 0; uint32_t window_size = 0;
// Packing/Unpacking Helper functions // Packing/Unpacking Helper functions
void read_data_header(const unique_byte_buffer_t& sdu, uint32_t* rcvd_sn); uint32_t read_data_header(const unique_byte_buffer_t& sdu);
void write_data_header(const unique_byte_buffer_t& sdu, uint32_t sn); void write_data_header(const unique_byte_buffer_t& sdu, uint32_t sn);
void extract_mac(const unique_byte_buffer_t& sdu, uint8_t* mac); void extract_mac(const unique_byte_buffer_t& sdu, uint8_t* mac);
void append_mac(const unique_byte_buffer_t& sdu, uint8_t* mac); void append_mac(const unique_byte_buffer_t& sdu, uint8_t* mac);
}; };
} // namespace srslte } // namespace srslte

17
lib/src/upper/pdcp_entity_nr.cc
Unescape Escape View File

@ -116,8 +116,7 @@ void pdcp_entity_nr::write_pdu(unique_byte_buffer_t pdu)
} }
// Extract RCVD_SN from header // Extract RCVD_SN from header
uint32_t rcvd_sn; uint32_t rcvd_sn = read_data_header(pdu);
read_data_header(pdu, &rcvd_sn);
// Extract MAC // Extract MAC
uint8_t mac[4]; uint8_t mac[4];
@ -176,24 +175,26 @@ void pdcp_entity_nr::write_pdu(unique_byte_buffer_t pdu)
// TODO handle reordering timers // TODO handle reordering timers
} }
void pdcp_entity_nr::read_data_header(const unique_byte_buffer_t& pdu, uint32_t* rcvd_sn) uint32_t pdcp_entity_nr::read_data_header(const unique_byte_buffer_t& pdu)
{ {
// Check PDU is long enough to extract header // Check PDU is long enough to extract header
if (pdu->N_bytes <= cfg.hdr_len_bytes) { if (pdu->N_bytes <= cfg.hdr_len_bytes) {
log->error("PDU too small to extract header\n"); log->error("PDU too small to extract header\n");
return; return 0;
} }
// Extract RCVD_SN // Extract RCVD_SN
uint16_t rcvd_sn_16 = 0; uint16_t rcvd_sn_16 = 0;
uint32_t rcvd_sn_32 = 0;
switch (cfg.sn_len) { switch (cfg.sn_len) {
case PDCP_SN_LEN_12: case PDCP_SN_LEN_12:
srslte::uint8_to_uint16(pdu->msg, &rcvd_sn_16); srslte::uint8_to_uint16(pdu->msg, &rcvd_sn_16);
(*rcvd_sn) = SN(rcvd_sn_16); rcvd_sn_32 = SN(rcvd_sn_16);
break; break;
case PDCP_SN_LEN_18: case PDCP_SN_LEN_18:
srslte::uint8_to_uint24(pdu->msg, rcvd_sn); srslte::uint8_to_uint24(pdu->msg, &rcvd_sn_32);
(*rcvd_sn) = SN(*rcvd_sn); rcvd_sn_32 = SN(rcvd_sn_32);
break;
break; break;
default: default:
log->error("Cannot extract RCVD_SN, invalid SN length configured: %d\n", cfg.sn_len); log->error("Cannot extract RCVD_SN, invalid SN length configured: %d\n", cfg.sn_len);
@ -202,7 +203,7 @@ void pdcp_entity_nr::read_data_header(const unique_byte_buffer_t& pdu, uint32_t*
// Discard header // Discard header
pdu->msg += cfg.hdr_len_bytes; pdu->msg += cfg.hdr_len_bytes;
pdu->N_bytes -= cfg.hdr_len_bytes; pdu->N_bytes -= cfg.hdr_len_bytes;
return; return rcvd_sn_32;
} }
void pdcp_entity_nr::write_data_header(const srslte::unique_byte_buffer_t& sdu, uint32_t count) void pdcp_entity_nr::write_data_header(const srslte::unique_byte_buffer_t& sdu, uint32_t count)

Write Preview
Loading…
Cancel
Save