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srsRAN_4G
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bugfix - avoid calling rlf release timer handler concurrently

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master
Francisco 4 years ago committed by Francisco Paisana
parent f0f99c1e4f
commit 8d30c88330
2 changed files with 22 additions and 19 deletions
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40
srsenb/src/stack/rrc/rrc_ue.cc
Unescape Escape View File

@ -170,7 +170,9 @@ void rrc::ue::activity_timer_expired(const activity_timeout_type_t type)
if (parent->s1ap->user_exists(rnti)) {
if (type == UE_INACTIVITY_TIMEOUT) {
parent->s1ap->user_release(rnti, asn1::s1ap::cause_radio_network_opts::user_inactivity);
if (not parent->s1ap->user_release(rnti, asn1::s1ap::cause_radio_network_opts::user_inactivity)) {
parent->rem_user_thread(rnti);
}
con_release_result = procedure_result_code::activity_timeout;
} else if (type == MSG3_RX_TIMEOUT) {
// MSG3 timeout, no need to notify S1AP, just remove UE
@ -196,22 +198,22 @@ void rrc::ue::activity_timer_expired(const activity_timeout_type_t type)
void rrc::ue::rlf_timer_expired(uint32_t timeout_id)
{
activity_timer.stop();
if (parent) {
if (timeout_id == phy_dl_rlf_timer.id()) {
parent->logger.info("DL RLF timer for rnti=0x%x expired after %d ms", rnti, phy_dl_rlf_timer.time_elapsed());
} else if (timeout_id == phy_ul_rlf_timer.id()) {
parent->logger.info("UL RLF timer for rnti=0x%x expired after %d ms", rnti, phy_ul_rlf_timer.time_elapsed());
} else if (timeout_id == rlc_rlf_timer.id()) {
parent->logger.info("RLC RLF timer for rnti=0x%x expired after %d ms", rnti, rlc_rlf_timer.time_elapsed());
}
if (parent->s1ap->user_exists(rnti)) {
parent->s1ap->user_release(rnti, asn1::s1ap::cause_radio_network_opts::radio_conn_with_ue_lost);
con_release_result = procedure_result_code::radio_conn_with_ue_lost;
} else {
if (rnti != SRSRAN_MRNTI) {
parent->rem_user(rnti);
}
if (timeout_id == phy_dl_rlf_timer.id()) {
parent->logger.info("DL RLF timer for rnti=0x%x expired after %d ms", rnti, phy_dl_rlf_timer.time_elapsed());
} else if (timeout_id == phy_ul_rlf_timer.id()) {
parent->logger.info("UL RLF timer for rnti=0x%x expired after %d ms", rnti, phy_ul_rlf_timer.time_elapsed());
} else if (timeout_id == rlc_rlf_timer.id()) {
parent->logger.info("RLC RLF timer for rnti=0x%x expired after %d ms", rnti, rlc_rlf_timer.time_elapsed());
}
if (parent->s1ap->user_release(rnti, asn1::s1ap::cause_radio_network_opts::radio_conn_with_ue_lost)) {
con_release_result = procedure_result_code::radio_conn_with_ue_lost;
phy_ul_rlf_timer.stop();
phy_dl_rlf_timer.stop();
rlc_rlf_timer.stop();
} else {
if (rnti != SRSRAN_MRNTI) {
parent->rem_user(rnti);
}
}
@ -391,7 +393,9 @@ void rrc::ue::handle_rrc_con_req(rrc_conn_request_s* msg)
if (user.first != rnti && user.second->has_tmsi && user.second->mmec == mmec && user.second->m_tmsi == m_tmsi) {
parent->logger.info("RRC connection request: UE context already exists. M-TMSI=%d", m_tmsi);
user.second->state = RRC_STATE_IDLE; // Set old rnti to IDLE so that enb doesn't send RRC Connection Release
parent->s1ap->user_release(user.first, asn1::s1ap::cause_radio_network_opts::radio_conn_with_ue_lost);
if (not parent->s1ap->user_release(user.first, asn1::s1ap::cause_radio_network_opts::radio_conn_with_ue_lost)) {
parent->rem_user_thread(user.first);
}
break;
}
}

1
srsenb/src/stack/s1ap/s1ap.cc
Unescape Escape View File

@ -422,7 +422,6 @@ bool s1ap::user_release(uint16_t rnti, asn1::s1ap::cause_radio_network_e cause_r
if (not u->send_uectxtreleaserequest(cause)) {
users.erase(u);
rrc->release_ue(rnti);
return false;
}
return true;

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