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nr,gnb,rrc: print correct context where PDU allocation fails, and handle case the CCCH/DCCH failed to be sent to the UE

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master
Francisco 3 years ago committed by Francisco Paisana
parent 6221134b77
commit f9a2b8e068
3 changed files with 33 additions and 19 deletions
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7
srsgnb/hdr/stack/rrc/rrc_nr.h
Unescape Escape View File

@ -162,17 +162,18 @@ private:
// Helper to create PDU from RRC message
template <class T>
srsran::unique_byte_buffer_t pack_into_pdu(const T& msg)
srsran::unique_byte_buffer_t pack_into_pdu(const T& msg, const char* context_name = nullptr)
{
context_name = context_name == nullptr ? __FUNCTION__ : context_name;
// Allocate a new PDU buffer and pack the
srsran::unique_byte_buffer_t pdu = srsran::make_byte_buffer();
if (pdu == nullptr) {
logger.error("Couldn't allocate PDU in %s().", __FUNCTION__);
logger.error("Couldn't allocate PDU in %s.", context_name);
return nullptr;
}
asn1::bit_ref bref(pdu->msg, pdu->get_tailroom());
if (msg.pack(bref) == asn1::SRSASN_ERROR_ENCODE_FAIL) {
logger.error("Failed to pack message. Discarding it.");
logger.error("Failed to pack message in %s. Discarding it.", context_name);
return nullptr;
}
pdu->N_bytes = bref.distance_bytes();

4
srsgnb/hdr/stack/rrc/rrc_nr_ue.h
Unescape Escape View File

@ -75,8 +75,8 @@ public:
void establish_eps_bearer(uint32_t pdu_session_id, srsran::const_byte_span nas_pdu, uint32_t lcid);
private:
void send_dl_ccch(const asn1::rrc_nr::dl_ccch_msg_s& dl_ccch_msg);
void send_dl_dcch(srsran::nr_srb srb, const asn1::rrc_nr::dl_dcch_msg_s& dl_dcch_msg);
int send_dl_ccch(const asn1::rrc_nr::dl_ccch_msg_s& dl_ccch_msg);
int send_dl_dcch(srsran::nr_srb srb, const asn1::rrc_nr::dl_dcch_msg_s& dl_dcch_msg);
/* TS 38.331 - 5.3.3 RRC connection establishment */
void send_rrc_setup();

41
srsgnb/src/stack/rrc/rrc_nr_ue.cc
Unescape Escape View File

@ -112,32 +112,34 @@ std::string rrc_nr::ue::to_string(const activity_timeout_type_t& type)
return srsran::enum_to_text(options, (uint32_t)activity_timeout_type_t::nulltype, (uint32_t)type);
}
void rrc_nr::ue::send_dl_ccch(const dl_ccch_msg_s& dl_ccch_msg)
int rrc_nr::ue::send_dl_ccch(const dl_ccch_msg_s& dl_ccch_msg)
{
// Allocate a new PDU buffer, pack the message and send to PDCP
srsran::unique_byte_buffer_t pdu = parent->pack_into_pdu(dl_ccch_msg);
srsran::unique_byte_buffer_t pdu = parent->pack_into_pdu(dl_ccch_msg, __FUNCTION__);
if (pdu == nullptr) {
logger.error("Failed to send DL-CCCH");
return;
return SRSRAN_ERROR;
}
fmt::memory_buffer fmtbuf;
fmt::format_to(fmtbuf, "DL-CCCH.{}", dl_ccch_msg.msg.c1().type().to_string());
log_rrc_message(srsran::nr_srb::srb0, Tx, *pdu.get(), dl_ccch_msg, srsran::to_c_str(fmtbuf));
parent->rlc->write_sdu(rnti, srsran::srb_to_lcid(srsran::nr_srb::srb0), std::move(pdu));
return SRSRAN_SUCCESS;
}
void rrc_nr::ue::send_dl_dcch(srsran::nr_srb srb, const asn1::rrc_nr::dl_dcch_msg_s& dl_dcch_msg)
int rrc_nr::ue::send_dl_dcch(srsran::nr_srb srb, const asn1::rrc_nr::dl_dcch_msg_s& dl_dcch_msg)
{
// Allocate a new PDU buffer, pack the message and send to PDCP
srsran::unique_byte_buffer_t pdu = parent->pack_into_pdu(dl_dcch_msg);
srsran::unique_byte_buffer_t pdu = parent->pack_into_pdu(dl_dcch_msg, __FUNCTION__);
if (pdu == nullptr) {
logger.error("Failed to send DL-DCCH");
return;
return SRSRAN_ERROR;
}
fmt::memory_buffer fmtbuf;
fmt::format_to(fmtbuf, "DL-DCCH.{}", dl_dcch_msg.msg.c1().type().to_string());
log_rrc_message(srb, Tx, *pdu.get(), dl_dcch_msg, srsran::to_c_str(fmtbuf));
parent->pdcp->write_sdu(rnti, srsran::srb_to_lcid(srb), std::move(pdu));
return SRSRAN_SUCCESS;
}
int rrc_nr::ue::pack_secondary_cell_group_rlc_cfg(asn1::rrc_nr::cell_group_cfg_s& cell_group_cfg_pack)
@ -894,7 +896,9 @@ void rrc_nr::ue::send_rrc_reject(uint8_t reject_wait_time_secs)
reject.wait_time_present = true;
reject.wait_time = reject_wait_time_secs;
}
send_dl_ccch(msg);
if (send_dl_ccch(msg) != SRSRAN_SUCCESS) {
// TODO: Handle
}
// TODO: remove user
}
@ -927,7 +931,7 @@ void rrc_nr::ue::send_rrc_setup()
// - Derive master cell group config bearers
fill_cellgroup_with_radio_bearer_cfg(parent->cfg, setup_ies.radio_bearer_cfg, master_cell_group);
// - Pack masterCellGroup into container
srsran::unique_byte_buffer_t pdu = parent->pack_into_pdu(master_cell_group);
srsran::unique_byte_buffer_t pdu = parent->pack_into_pdu(master_cell_group, __FUNCTION__);
if (pdu == nullptr) {
send_rrc_reject(max_wait_time_secs);
return;
@ -949,7 +953,10 @@ void rrc_nr::ue::send_rrc_setup()
// add MAC bearers
update_mac(master_cell_group);
send_dl_ccch(msg);
// Send RRC Setup message to UE
if (send_dl_ccch(msg) != SRSRAN_SUCCESS) {
send_rrc_reject(max_wait_time_secs);
}
}
/// TS 38.331, RRCSetupComplete
@ -976,7 +983,9 @@ void rrc_nr::ue::send_security_mode_command()
ies.security_cfg_smc.security_algorithm_cfg.integrity_prot_algorithm.value = integrity_prot_algorithm_opts::nia0;
ies.security_cfg_smc.security_algorithm_cfg.ciphering_algorithm.value = ciphering_algorithm_opts::nea0;
send_dl_dcch(srsran::nr_srb::srb1, dl_dcch_msg);
if (send_dl_dcch(srsran::nr_srb::srb1, dl_dcch_msg) != SRSRAN_SUCCESS) {
send_rrc_release();
}
}
/// TS 38.331, SecurityModeComplete
@ -1009,7 +1018,7 @@ void rrc_nr::ue::send_rrc_reconfiguration()
fill_cellgroup_with_radio_bearer_cfg(parent->cfg, ies.radio_bearer_cfg, master_cell_group);
// Pack masterCellGroup into container
srsran::unique_byte_buffer_t pdu = parent->pack_into_pdu(master_cell_group);
srsran::unique_byte_buffer_t pdu = parent->pack_into_pdu(master_cell_group, __FUNCTION__);
if (pdu == nullptr) {
send_rrc_release();
return;
@ -1038,7 +1047,9 @@ void rrc_nr::ue::send_rrc_reconfiguration()
update_mac(master_cell_group);
}
send_dl_dcch(srsran::nr_srb::srb1, dl_dcch_msg);
if (send_dl_dcch(srsran::nr_srb::srb1, dl_dcch_msg) != SRSRAN_SUCCESS) {
send_rrc_release();
}
}
void rrc_nr::ue::handle_rrc_reconfiguration_complete(const asn1::rrc_nr::rrc_recfg_complete_s& msg)
@ -1061,7 +1072,9 @@ void rrc_nr::ue::send_dl_information_transfer(srsran::unique_byte_buffer_t sdu)
ies.ded_nas_msg.resize(sdu->N_bytes);
memcpy(ies.ded_nas_msg.data(), sdu->data(), ies.ded_nas_msg.size());
send_dl_dcch(srsran::nr_srb::srb1, dl_dcch_msg);
if (send_dl_dcch(srsran::nr_srb::srb1, dl_dcch_msg) != SRSRAN_SUCCESS) {
send_rrc_release();
}
}
void rrc_nr::ue::handle_ul_information_transfer(const asn1::rrc_nr::ul_info_transfer_s& msg)

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