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@ -28,8 +28,12 @@ using namespace srsran;
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namespace srsenb {
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gtpu_tunnel_manager::gtpu_tunnel_manager(srsran::task_sched_handle task_sched_) :
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logger(srslog::fetch_basic_logger("GTPU")), task_sched(task_sched_)
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// ensure consistent formatting
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#define TEID_IN_FMT "TEID In=0x%x"
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#define TEID_OUT_FMT "TEID Out=0x%x"
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gtpu_tunnel_manager::gtpu_tunnel_manager(srsran::task_sched_handle task_sched_, srslog::basic_logger& logger) :
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logger(logger), task_sched(task_sched_), tunnels(1)
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{}
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void gtpu_tunnel_manager::init(pdcp_interface_gtpu* pdcp_)
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@ -100,7 +104,7 @@ const gtpu_tunnel* gtpu_tunnel_manager::add_tunnel(uint16_t rnti, uint32_t lcid,
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fmt::memory_buffer str_buffer;
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srsran::gtpu_ntoa(str_buffer, htonl(spgw_addr));
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logger.info("New tunnel teid_in=0x%x, teid_out=0x%x, rnti=0x%x, lcid=%d, addr=%s",
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logger.info("New tunnel created - " TEID_IN_FMT ", " TEID_OUT_FMT ", rnti=0x%x, lcid=%d, remote addr=%s",
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tun->teid_in,
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teidout,
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rnti,
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@ -140,7 +144,7 @@ bool gtpu_tunnel_manager::remove_tunnel(uint32_t teidin)
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srsran_assert(lcid_it->teid == tun.teid_in and lcid_it->lcid == tun.lcid, "TEID in undefined state");
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ue.erase(lcid_it);
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logger.info("TEID In=%d for rnti=0x%x erased", teidin, tun.rnti);
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logger.info("Removed rnti=0x%x,lcid=%d tunnel with " TEID_IN_FMT, tun.rnti, tun.lcid, teidin);
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tunnels.erase(teidin);
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return true;
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}
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@ -183,7 +187,7 @@ void gtpu_tunnel_manager::activate_tunnel(uint32_t teid)
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return;
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}
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logger.info("Activating GTPU tunnel rnti=0x%x,TEID=%d. %d SDUs currently buffered",
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logger.info("Activating GTPU tunnel rnti=0x%x, " TEID_IN_FMT ". %d SDUs currently buffered",
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tun.rnti,
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tun.teid_in,
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tun.buffer->size());
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@ -236,7 +240,7 @@ void gtpu_tunnel_manager::set_tunnel_priority(uint32_t before_teid, uint32_t aft
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before_tun.rx_timer.run();
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}
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gtpu_tunnel_manager::tunnel_state gtpu_tunnel_manager::handle_rx_pdcp_sdu(uint32_t teid)
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void gtpu_tunnel_manager::handle_rx_pdcp_sdu(uint32_t teid)
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{
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tunnel& rx_tun = tunnels[teid];
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@ -244,8 +248,6 @@ gtpu_tunnel_manager::tunnel_state gtpu_tunnel_manager::handle_rx_pdcp_sdu(uint32
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if (rx_tun.rx_timer.is_valid() and rx_tun.rx_timer.is_running()) {
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rx_tun.rx_timer.run();
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}
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return rx_tun.state;
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}
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void gtpu_tunnel_manager::buffer_pdcp_sdu(uint32_t teid, uint32_t pdcp_sn, srsran::unique_byte_buffer_t sdu)
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@ -272,13 +274,13 @@ void gtpu_tunnel_manager::setup_forwarding(uint32_t rx_teid, uint32_t tx_teid)
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}
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};
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logger.info("Creating forwarding tunnel for rnti=0x%x, lcid=%d, in={0x%x, 0x%x}->out={0x%x, 0x%x}",
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rx_tun.rnti,
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rx_tun.lcid,
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rx_tun.teid_out,
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rx_tun.spgw_addr,
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tx_tun.teid_out,
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tx_tun.spgw_addr);
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fmt::memory_buffer addrbuf;
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srsran::gtpu_ntoa(addrbuf, htonl(rx_tun.spgw_addr));
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fmt::format_to(addrbuf, ":0x{:x} > ", rx_tun.teid_out);
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srsran::gtpu_ntoa(addrbuf, htonl(tx_tun.spgw_addr));
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fmt::format_to(addrbuf, ":0x{:x}", tx_tun.teid_out);
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logger.info(
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"Created forwarding tunnel for rnti=0x%x, lcid=%d, %s", rx_tun.rnti, rx_tun.lcid, srsran::to_c_str(addrbuf));
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}
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/********************
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@ -286,7 +288,7 @@ void gtpu_tunnel_manager::setup_forwarding(uint32_t rx_teid, uint32_t tx_teid)
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*******************/
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gtpu::gtpu(srsran::task_sched_handle task_sched_, srslog::basic_logger& logger) :
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m1u(this), task_sched(task_sched_), logger(logger), tunnels(task_sched_)
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m1u(this), task_sched(task_sched_), logger(logger), tunnels(task_sched_, logger)
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{}
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gtpu::~gtpu()
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@ -445,7 +447,7 @@ uint32_t gtpu::add_bearer(uint16_t rnti, uint32_t lcid, uint32_t addr, uint32_t
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void gtpu::set_tunnel_status(uint32_t teidin, bool dl_active)
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{
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if (not tunnels.has_teid(teidin)) {
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logger.error("Setting status for non-existent TEID In=0x%x", teidin);
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logger.error("Setting status for non-existent " TEID_IN_FMT, teidin);
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return;
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}
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@ -478,7 +480,7 @@ void gtpu::mod_bearer_rnti(uint16_t old_rnti, uint16_t new_rnti)
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void gtpu::rem_tunnel(uint32_t teidin)
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{
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if (not tunnels.has_teid(teidin)) {
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logger.warning("TEID In=0x%x to be removed does not exist", teidin);
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logger.warning("Removing tunnel - " TEID_IN_FMT " does not exist", teidin);
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return;
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}
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tunnels.remove_tunnel(teidin);
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@ -487,7 +489,7 @@ void gtpu::rem_tunnel(uint32_t teidin)
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void gtpu::rem_user(uint16_t rnti)
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{
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if (tunnels.find_rnti_tunnels(rnti) == nullptr) {
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logger.warning("removing rnti. rnti=0x%x not found.", rnti);
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logger.info("Removing user - rnti=0x%x not found.", rnti);
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return;
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}
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tunnels.remove_rnti(rnti);
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@ -496,7 +498,7 @@ void gtpu::rem_user(uint16_t rnti)
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void gtpu::handle_end_marker(const gtpu_tunnel& rx_tunnel)
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{
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uint16_t rnti = rx_tunnel.rnti;
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logger.info("Received GTPU End Marker for TEID In=0x%x, rnti=0x%x.", rx_tunnel.teid_in, rnti);
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logger.info("Received GTPU End Marker for " TEID_IN_FMT ", rnti=0x%x.", rx_tunnel.teid_in, rnti);
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if (rx_tunnel.state == gtpu_tunnel_state::forward_to) {
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// TS 36.300, Sec 10.1.2.2.1 - Path Switch upon handover
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@ -526,6 +528,13 @@ void gtpu::handle_gtpu_s1u_rx_packet(srsran::unique_byte_buffer_t pdu, const soc
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echo_response(addr.sin_addr.s_addr, addr.sin_port, header.seq_number);
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return;
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}
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if (header.message_type == GTPU_MSG_ERROR_INDICATION) {
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logger.warning("Received Error Indication");
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return;
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}
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if (header.teid == 0) {
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logger.warning("Received GTPU S1-U message with " TEID_IN_FMT, header.teid);
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}
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// Find TEID present in GTPU Header
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const gtpu_tunnel* tun_ptr = tunnels.find_tunnel(header.teid);
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@ -570,9 +579,9 @@ void gtpu::handle_msg_data_pdu(const gtpu_header_t& header,
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log_message(rx_tunnel, true, srsran::make_span(pdu));
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gtpu_tunnel_manager::tunnel_state tun_state = tunnels.handle_rx_pdcp_sdu(rx_tunnel.teid_in);
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tunnels.handle_rx_pdcp_sdu(rx_tunnel.teid_in);
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switch (tun_state) {
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switch (rx_tunnel.state) {
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case gtpu_tunnel_manager::tunnel_state::forward_to: {
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// Forward SDU to direct/indirect tunnel during Handover
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send_pdu_to_tunnel(*rx_tunnel.fwd_tunnel, std::move(pdu));
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@ -588,7 +597,7 @@ void gtpu::handle_msg_data_pdu(const gtpu_header_t& header,
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}
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case gtpu_tunnel_manager::tunnel_state::forwarded_from:
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default:
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logger.error("TEID=0x%x in invalid state");
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logger.error(TEID_IN_FMT " found in invalid state", rx_tunnel.teid_in);
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break;
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}
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}
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@ -760,7 +769,7 @@ void gtpu::log_message(const gtpu_tunnel& tun, bool is_rx, srsran::span<uint8_t>
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fmt::format_to(strbuf2, "DL, ");
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break;
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default:
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logger.error("TEID=%d found in invalid state: %d", tun.teid_in, (int)tun.state);
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logger.error(TEID_IN_FMT " found in invalid state: %d", tun.teid_in, (int)tun.state);
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break;
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}
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} else {
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