mirror of https://github.com/PentHertz/srsLTE.git
86 lines
2.2 KiB
C++
86 lines
2.2 KiB
C++
/**
|
|
* Copyright 2013-2022 Software Radio Systems Limited
|
|
*
|
|
* This file is part of srsRAN.
|
|
*
|
|
* srsRAN is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as
|
|
* published by the Free Software Foundation, either version 3 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* srsRAN is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* A copy of the GNU Affero General Public License can be found in
|
|
* the LICENSE file in the top-level directory of this distribution
|
|
* and at http://www.gnu.org/licenses/.
|
|
*
|
|
*/
|
|
|
|
#include "srsue/hdr/stack/upper/sdap.h"
|
|
|
|
namespace srsue {
|
|
|
|
sdap::sdap(const char* logname) : logger(srslog::fetch_basic_logger(logname)) {}
|
|
|
|
bool sdap::init(pdcp_interface_sdap_nr* pdcp_, srsue::gw_interface_pdcp* gw_)
|
|
{
|
|
m_pdcp = pdcp_;
|
|
m_gw = gw_;
|
|
|
|
running = true;
|
|
return true;
|
|
}
|
|
|
|
void sdap::stop()
|
|
{
|
|
if (running) {
|
|
running = false;
|
|
}
|
|
}
|
|
|
|
void sdap::write_pdu(uint32_t lcid, srsran::unique_byte_buffer_t pdu)
|
|
{
|
|
if (!running) {
|
|
return;
|
|
}
|
|
m_gw->write_pdu(lcid, std::move(pdu));
|
|
}
|
|
|
|
void sdap::write_sdu(uint32_t lcid, srsran::unique_byte_buffer_t pdu)
|
|
{
|
|
if (!running) {
|
|
return;
|
|
}
|
|
if (lcid < bearers.size()) {
|
|
if (bearers[lcid].add_uplink_header) {
|
|
if (pdu->get_headroom() > 1) {
|
|
pdu->msg -= 1;
|
|
pdu->N_bytes += 1;
|
|
pdu->msg[0] = ((bearers[lcid].is_data ? 1 : 0) << 7) | (bearers[lcid].qfi & 0x3f);
|
|
} else {
|
|
logger.error("Not enough headroom in PDU to add header\n");
|
|
}
|
|
}
|
|
}
|
|
m_pdcp->write_sdu(lcid, std::move(pdu));
|
|
}
|
|
|
|
bool sdap::set_bearer_cfg(uint32_t lcid, const sdap_interface_rrc::bearer_cfg_t& cfg)
|
|
{
|
|
if (lcid >= bearers.size()) {
|
|
logger.error("Error setting configuration: invalid lcid=%d\n", lcid);
|
|
return false;
|
|
}
|
|
if (cfg.add_downlink_header) {
|
|
logger.error("Error setting configuration: downlink header not supported\n");
|
|
return false;
|
|
}
|
|
bearers[lcid] = cfg;
|
|
return true;
|
|
}
|
|
|
|
} // namespace srsue
|