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srsLTE
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do not send RRC release in case the eNB receives a S1AP UEContextRelease command and the UE is doing handover. Handle GTPU end marker

This commit is contained in:
Francisco Paisana 2020-09-22 15:07:24 +02:00
parent 5968157ea5
commit dcf5a727f2
3 changed files with 18 additions and 8 deletions
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2
lib/include/srslte/upper/gtpu.h
View File

@ -106,7 +106,7 @@ inline bool gtpu_supported_msg_type_check(gtpu_header_t* header, srslte::log_ref
{
// msg_tpye
if (header->message_type != GTPU_MSG_DATA_PDU && header->message_type != GTPU_MSG_ECHO_REQUEST &&
header->message_type != GTPU_MSG_ECHO_RESPONSE) {
header->message_type != GTPU_MSG_ECHO_RESPONSE && header->message_type != GTPU_MSG_END_MARKER) {
gtpu_log->error("gtpu_header - Unhandled message type: 0x%x\n", header->message_type);
return false;
}

18
srsenb/src/stack/rrc/rrc.cc
View File

@ -538,15 +538,19 @@ void rrc::process_release_complete(uint16_t rnti)
{
rrc_log->info("Received Release Complete rnti=0x%x\n", rnti);
auto user_it = users.find(rnti);
if (user_it != users.end()) {
if (!user_it->second->is_idle()) {
rlc->clear_buffer(rnti);
user_it->second->send_connection_release();
}
if (user_it == users.end()) {
rrc_log->error("Received ReleaseComplete for unknown rnti=0x%x\n", rnti);
return;
}
ue* u = user_it->second.get();
if (u->is_idle() or u->mobility_handler->is_ho_running()) {
rem_user_thread(rnti);
} else if (not u->is_idle()) {
rlc->clear_buffer(rnti);
user_it->second->send_connection_release();
// delay user deletion for ~50 TTI (until RRC release is sent)
task_sched.defer_callback(50, [this, rnti]() { rem_user_thread(rnti); });
} else {
rrc_log->error("Received ReleaseComplete for unknown rnti=0x%x\n", rnti);
}
}

6
srsenb/src/stack/upper/gtpu.cc
View File

@ -280,6 +280,12 @@ void gtpu::handle_gtpu_s1u_rx_packet(srslte::unique_byte_buffer_t pdu, const soc
}
pdcp->write_sdu(rnti, lcid, std::move(pdu));
} break;
case GTPU_MSG_END_MARKER: {
rnti_lcid_t rnti_lcid = teidin_to_rntilcid(header.teid);
uint16_t rnti = rnti_lcid.rnti;
gtpu_log->info("Received GTPU End Marker for rnti=0x%x.\n", rnti);
break;
}
default:
break;
}