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OpenXG-AMF
Commit 99a1fc56 authored by Tien-Thinh Nguyen's avatar Tien-Thinh Nguyen
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First version for Mobility Registration Update

parent 632c3bb9
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Showing with 189 additions and 199 deletions
src/amf-app/amf_app.cpp
View file @ 99a1fc56
......@@ -58,7 +58,6 @@ extern amf_config amf_cfg;
extern statistics stacs;
void amf_app_task(void*);
uint32_t golbal_tmsi = 1;
//------------------------------------------------------------------------------
amf_app::amf_app(const amf_config& amf_cfg)
......@@ -394,6 +393,11 @@ void amf_app::handle_post_sm_context_response_error_400() {
Logger::amf_app().error("Post SM context response error 400");
}
//------------------------------------------------------------------------------
uint32_t amf_app::generate_tmsi() {
return tmsi_generator.get_uid();
}
//------------------------------------------------------------------------------
bool amf_app::generate_5g_guti(
uint32_t ranid, long amfid, string& mcc, string& mnc, uint32_t& tmsi) {
......@@ -404,12 +408,12 @@ bool amf_app::generate_5g_guti(
"No UE context for ran_amf_id %s, exit", ue_context_key.c_str());
return false;
}
std::shared_ptr<ue_context> uc;
uc = ran_amf_id_2_ue_context(ue_context_key);
mcc = uc.get()->tai.mcc;
mnc = uc.get()->tai.mnc;
tmsi = golbal_tmsi;
golbal_tmsi++;
std::shared_ptr<ue_context> uc = {};
uc = ran_amf_id_2_ue_context(ue_context_key);
mcc = uc.get()->tai.mcc;
mnc = uc.get()->tai.mnc;
tmsi = generate_tmsi();
uc.get()->tmsi = tmsi;
return true;
}
......
src/amf-app/amf_app.hpp
View file @ 99a1fc56
......@@ -70,6 +70,8 @@ class amf_app {
mutable std::shared_mutex m_amf_event_subscriptions;
util::uint_generator<uint32_t> tmsi_generator;
public:
explicit amf_app(const amf_config& amf_cfg);
amf_app(amf_app const&) = delete;
......@@ -107,6 +109,7 @@ class amf_app {
// SMF Client response handlers
void handle_post_sm_context_response_error_400();
// others
uint32_t generate_tmsi();
bool generate_5g_guti(
uint32_t ranid, long amfid, std::string& mcc, std::string& mnc,
uint32_t& tmsi);
......
src/amf-app/amf_n1.cpp
View file @ 99a1fc56
......@@ -796,21 +796,8 @@ void amf_n1::service_request_handle(
}
std::vector<uint8_t> pdu_session_to_be_activated = {};
std::bitset<16> pdu_session_status_bits(pdu_session_status);
for (int i = 0; i < 15; i++) {
if (pdu_session_status_bits.test(i)) {
if (i <= 7)
pdu_session_to_be_activated.push_back(8 + i);
else if (i > 8)
pdu_session_to_be_activated.push_back(i - 8);
}
}
if (pdu_session_to_be_activated.size() > 0) {
for (auto i : pdu_session_to_be_activated)
Logger::amf_n1().debug("PDU session to be activated %d", i);
}
get_pdu_session_to_be_activated(
pdu_session_status, pdu_session_to_be_activated);
// No PDU Sessions To Be Activated
if (pdu_session_to_be_activated.size() == 0) {
......@@ -1163,23 +1150,21 @@ void amf_n1::registration_request_handle(
bool is_messagecontainer = regReq->getNasMessageContainer(nas_msg);
// Store NAS information into nas_context
// Run different registration procedure
// Run the corresponding registration procedure
switch (reg_type) {
case INITIAL_REGISTRATION: {
run_initial_registration_procedure(); // IEs?
run_registration_procedure(nc);
} break;
case MOBILITY_REGISTRATION_UPDATING: {
// TODO: check if the List Of PDU Sessions To Be Activated is available
// regReq->getPduSessionStatus()
Logger::amf_n1().debug("Network handling mobility registration ...");
Logger::amf_n1().debug("Handling Mobility Registration Update...");
run_mobility_registration_update_procedure(
nc, regReq->getUplinkDataStatus(), regReq->getPduSessionStatus());
} break;
case PERIODIC_REGISTRATION_UPDATING: {
Logger::amf_n1().debug("Network handling periodic registration...");
Logger::amf_n1().debug("Handling Periodic Registration Update...");
if (is_messagecontainer)
run_periodic_registration_update_procedure(nc, nas_msg);
else
......@@ -2169,15 +2154,14 @@ void amf_n1::security_mode_complete_handle(
"Found ue_context (%p) in amf_app using ran_amf_id (%s)", uc.get(),
ue_context_key.c_str());
// encoding REGISTRATION ACCEPT
// RegistrationAccept* regAccept = new RegistrationAccept();
std::unique_ptr<RegistrationAccept> regAccept =
std::make_unique<RegistrationAccept>();
regAccept->setHeader(PLAIN_5GS_MSG);
regAccept->set_5GS_Registration_Result(false, false, false, 0x01);
std::string mcc;
std::string mnc;
uint32_t tmsi = 0;
// Encoding REGISTRATION ACCEPT
std::shared_ptr<RegistrationAccept> regAccept =
std::make_shared<RegistrationAccept>();
initialize_registration_accept(regAccept);
std::string mcc = {};
std::string mnc = {};
uint32_t tmsi = 0;
if (!amf_app_inst->generate_5g_guti(
ran_ue_ngap_id, amf_ue_ngap_id, mcc, mnc, tmsi)) {
Logger::amf_n1().error("Generate 5G GUTI error! exit");
......@@ -2188,26 +2172,6 @@ void amf_n1::security_mode_complete_handle(
mcc, mnc, amf_cfg.guami.regionID, amf_cfg.guami.AmfSetID,
amf_cfg.guami.AmfPointer, tmsi);
std::vector<p_tai_t> tai_list = {};
p_tai_t item0 = {};
item0.type = 0x00;
nas_plmn_t plmn;
plmn.mcc = amf_cfg.plmn_list[0].mcc;
plmn.mnc = amf_cfg.plmn_list[0].mnc;
item0.plmn_list.push_back(plmn);
item0.tac_list.push_back(amf_cfg.plmn_list[0].tac);
tai_list.push_back(item0);
regAccept->setTaiList(tai_list);
std::vector<struct SNSSAI_s> nssai = {};
SNSSAI_t snssai = {};
snssai.sst = 1;
snssai.sd = -1;
snssai.mHplmnSst = -1;
snssai.mHplmnSd = -1;
nssai.push_back(snssai);
regAccept->setALLOWED_NSSAI(nssai);
std::string guti = mcc + mnc + amf_cfg.guami.regionID +
amf_cfg.guami.AmfSetID + amf_cfg.guami.AmfPointer +
std::to_string(tmsi);
......@@ -2574,9 +2538,6 @@ bool amf_n1::nas_message_cipher_protected(
return true;
}
//------------------------------------------------------------------------------
void amf_n1::run_initial_registration_procedure() {}
//------------------------------------------------------------------------------
void amf_n1::ue_initiate_de_registration_handle(
uint32_t ran_ue_ngap_id, long amf_ue_ngap_id, bstring nas) {
......@@ -2815,63 +2776,15 @@ void amf_n1::sha256(
void amf_n1::run_mobility_registration_update_procedure(
std::shared_ptr<nas_context> nc, uint16_t uplink_data_status,
uint16_t pdu_session_status) {
// encoding REGISTRATION ACCEPT
std::unique_ptr<RegistrationAccept> regAccept =
std::make_unique<RegistrationAccept>();
regAccept->setHeader(PLAIN_5GS_MSG);
regAccept->set_5GS_Registration_Result(false, false, false, 0x01);
regAccept->set5G_GUTI(
amf_cfg.guami.mcc, amf_cfg.guami.mnc, amf_cfg.guami.regionID,
amf_cfg.guami.AmfSetID, amf_cfg.guami.AmfPointer, 0x264a34c0);
regAccept->setT3512_Value(0x5, 0x1e);
std::vector<p_tai_t> tai_list;
p_tai_t item0;
item0.type = 0x00;
nas_plmn_t plmn;
plmn.mcc = amf_cfg.plmn_list[0].mcc;
plmn.mnc = amf_cfg.plmn_list[0].mnc;
item0.plmn_list.push_back(plmn);
item0.tac_list.push_back(amf_cfg.plmn_list[0].tac);
tai_list.push_back(item0);
regAccept->setTaiList(tai_list);
std::vector<struct SNSSAI_s> nssai;
SNSSAI_t snssai;
snssai.sst = 0;
snssai.sd = -1;
snssai.mHplmnSst = -1;
snssai.mHplmnSd = -1;
nssai.push_back(snssai);
regAccept->setALLOWED_NSSAI(nssai);
// std::string guti = amf_cfg.guami.mcc + amf_cfg.guami.mnc +
// amf_cfg.guami.regionID + amf_cfg.guami.AmfSetID + amf_cfg.guami.AmfPointer
// + "0001";
// Encoding REGISTRATION ACCEPT
std::shared_ptr<RegistrationAccept> regAccept =
std::make_shared<RegistrationAccept>();
initialize_registration_accept(regAccept);
regAccept->set_5GS_Network_Feature_Support(0x00, 0x00);
uint8_t buffer[1024] = {0};
int encoded_size = regAccept->encode2buffer(buffer, 1024);
comUt::print_buffer(
"amf_n1", "Registration-Accept Message Buffer", buffer, encoded_size);
if (!encoded_size) {
Logger::nas_mm().error("Encode Registration-Accept message error");
return;
}
nas_secu_ctx* secu = nc.get()->security_ctx;
if (!secu) {
Logger::amf_n1().error("No Security Context found");
return;
}
// protect nas message
bstring protectedNas;
encode_nas_message_protected(
secu, false, INTEGRITY_PROTECTED_AND_CIPHERED, NAS_MESSAGE_DOWNLINK,
buffer, encoded_size, protectedNas);
string supi = "imsi-" + nc.get()->imsi;
Logger::amf_n1().debug("Key for pdu session context SUPI (%s)", supi.c_str());
Logger::amf_n1().debug("Key for PDU Session Context SUPI (%s)", supi.c_str());
std::shared_ptr<pdu_session_context> psc = {};
string ue_context_key = "app_ue_ranid_" + to_string(nc->ran_ue_ngap_id) +
":amfid_" + to_string(nc->amf_ue_ngap_id);
......@@ -2889,24 +2802,36 @@ void amf_n1::run_mobility_registration_update_procedure(
return;
}
// get PDU session status
std::vector<uint8_t> pdu_session_to_be_activated = {};
std::bitset<16> pdu_session_status_bits((uint16_t) pdu_session_status);
regAccept->set5G_GUTI(
amf_cfg.guami.mcc, amf_cfg.guami.mnc, amf_cfg.guami.regionID,
amf_cfg.guami.AmfSetID, amf_cfg.guami.AmfPointer, uc.get()->tmsi);
for (int i = 0; i < 15; i++) {
if (pdu_session_status_bits.test(i)) {
if (i <= 7)
pdu_session_to_be_activated.push_back(8 + i);
else if (i > 8)
pdu_session_to_be_activated.push_back(i - 8);
}
uint8_t buffer[BUFFER_SIZE_1024] = {0};
int encoded_size = regAccept->encode2buffer(buffer, BUFFER_SIZE_1024);
comUt::print_buffer(
"amf_n1", "Registration-Accept Message Buffer", buffer, encoded_size);
if (!encoded_size) {
Logger::nas_mm().error("Encode Registration-Accept message error");
return;
}
if (pdu_session_to_be_activated.size() > 0) {
for (auto i : pdu_session_to_be_activated)
Logger::amf_n1().debug("PDU session to be activated %d", i);
nas_secu_ctx* secu = nc.get()->security_ctx;
if (!secu) {
Logger::amf_n1().error("No Security Context found");
return;
}
// protect nas message
bstring protectedNas;
encode_nas_message_protected(
secu, false, INTEGRITY_PROTECTED_AND_CIPHERED, NAS_MESSAGE_DOWNLINK,
buffer, encoded_size, protectedNas);
// get PDU session status
std::vector<uint8_t> pdu_session_to_be_activated = {};
get_pdu_session_to_be_activated(
pdu_session_status, pdu_session_to_be_activated);
if (pdu_session_to_be_activated.size() > 0) {
// get PDU session context for 1 PDU session for now
// TODO: multiple PDU sessions
......@@ -2914,6 +2839,11 @@ void amf_n1::run_mobility_registration_update_procedure(
}
uint8_t* kamf = nc.get()->kamf[secu->vector_pointer];
if (!kamf) {
Logger::amf_n1().error("No Kamf found");
return;
}
uint8_t kgnb[32];
uint32_t ulcount = secu->ul_count.seq_num | (secu->ul_count.overflow << 8);
Authentication_5gaka::derive_kgnb(ulcount, 0x01, kamf, kgnb);
......@@ -2946,43 +2876,40 @@ void amf_n1::run_mobility_registration_update_procedure(
void amf_n1::run_periodic_registration_update_procedure(
std::shared_ptr<nas_context> nc, uint16_t pdu_session_status) {
// Experimental procedure
// encoding REGISTRATION ACCEPT
std::unique_ptr<RegistrationAccept> regAccept =
std::make_unique<RegistrationAccept>();
regAccept->setHeader(PLAIN_5GS_MSG);
regAccept->set_5GS_Registration_Result(false, false, false, 0x01);
// Encoding REGISTRATION ACCEPT
std::shared_ptr<RegistrationAccept> regAccept =
std::make_shared<RegistrationAccept>();
initialize_registration_accept(regAccept);
string supi = "imsi-" + nc.get()->imsi;
Logger::amf_n1().debug("Key for PDU Session Context SUPI (%s)", supi.c_str());
string ue_context_key = "app_ue_ranid_" + to_string(nc->ran_ue_ngap_id) +
":amfid_" + to_string(nc->amf_ue_ngap_id);
std::shared_ptr<ue_context> uc = {};
if (!amf_app_inst->is_ran_amf_id_2_ue_context(ue_context_key)) {
Logger::amf_n1().error("No UE context for %s exit", ue_context_key.c_str());
return;
}
uc = amf_app_inst->ran_amf_id_2_ue_context(ue_context_key);
if (uc.get() == nullptr) {
Logger::amf_n1().warn(
"Cannot find the UE context with key %s", ue_context_key.c_str());
return;
}
regAccept->set5G_GUTI(
amf_cfg.guami.mcc, amf_cfg.guami.mnc, amf_cfg.guami.regionID,
amf_cfg.guami.AmfSetID, amf_cfg.guami.AmfPointer, 0x264a34c0);
regAccept->setT3512_Value(0x5, 0x1e);
std::vector<p_tai_t> tai_list;
p_tai_t item0 = {};
item0.type = 0x00;
nas_plmn_t plmn = {};
plmn.mcc = amf_cfg.plmn_list[0].mcc;
plmn.mnc = amf_cfg.plmn_list[0].mnc;
item0.plmn_list.push_back(plmn);
item0.tac_list.push_back(amf_cfg.plmn_list[0].tac);
tai_list.push_back(item0);
regAccept->setTaiList(tai_list);
//
// std::vector<struct SNSSAI_s> nssai;
// SNSSAI_t snssai;
// snssai.sst = 0;
// snssai.sd = -1;
// snssai.mHplmnSst = -1;
// snssai.mHplmnSd = -1;
// nssai.push_back(snssai);
// regAccept->setALLOWED_NSSAI(nssai);
amf_cfg.guami.AmfSetID, amf_cfg.guami.AmfPointer, uc.get()->tmsi);
if (pdu_session_status == 0x0000) {
regAccept->setPDU_session_status(0x0000);
} else {
regAccept->setPDU_session_status(pdu_session_status);
Logger::amf_n1().debug(
"Setting PDU Session Status 0x%02x", htonl(pdu_session_status));
// serApt->setPDU_session_status(0x2000);
"PDU Session Status 0x%02x", htonl(pdu_session_status));
}
regAccept->set_5GS_Network_Feature_Support(0x01, 0x00);
......@@ -2996,15 +2923,16 @@ void amf_n1::run_periodic_registration_update_procedure(
}
nas_secu_ctx* secu = nc.get()->security_ctx;
// protect nas message
if (!secu) {
Logger::amf_n1().error("No Security Context found");
return;
}
bstring protectedNas;
encode_nas_message_protected(
secu, false, INTEGRITY_PROTECTED_AND_CIPHERED, NAS_MESSAGE_DOWNLINK,
buffer, encoded_size, protectedNas);
string supi = "imsi-" + nc.get()->imsi;
Logger::amf_n1().debug("Key for pdu session context SUPI (%s)", supi.c_str());
itti_dl_nas_transport* itti_msg =
new itti_dl_nas_transport(TASK_AMF_N1, TASK_AMF_N2);
itti_msg->ran_ue_ngap_id = nc.get()->ran_ue_ngap_id;
......@@ -3031,35 +2959,33 @@ void amf_n1::run_periodic_registration_update_procedure(
nullptr, (uint8_t*) bdata(nas_msg), blength(nas_msg));
bdestroy(nas_msg); // free buffer
// encoding REGISTRATION ACCEPT
std::unique_ptr<RegistrationAccept> regAccept =
std::make_unique<RegistrationAccept>();
regAccept->setHeader(PLAIN_5GS_MSG);
regAccept->set_5GS_Registration_Result(false, false, false, 0x01);
// Encoding REGISTRATION ACCEPT
std::shared_ptr<RegistrationAccept> regAccept =
std::make_shared<RegistrationAccept>();
initialize_registration_accept(regAccept);
string supi = "imsi-" + nc.get()->imsi;
Logger::amf_n1().debug("Key for PDU Session Context SUPI (%s)", supi.c_str());
string ue_context_key = "app_ue_ranid_" + to_string(nc->ran_ue_ngap_id) +
":amfid_" + to_string(nc->amf_ue_ngap_id);
std::shared_ptr<ue_context> uc = {};
if (!amf_app_inst->is_ran_amf_id_2_ue_context(ue_context_key)) {
Logger::amf_n1().error("No UE context for %s exit", ue_context_key.c_str());
return;
}
uc = amf_app_inst->ran_amf_id_2_ue_context(ue_context_key);
if (uc.get() == nullptr) {
Logger::amf_n1().warn(
"Cannot find the UE context with key %s", ue_context_key.c_str());
return;
}
regAccept->set5G_GUTI(
amf_cfg.guami.mcc, amf_cfg.guami.mnc, amf_cfg.guami.regionID,
amf_cfg.guami.AmfSetID, amf_cfg.guami.AmfPointer, 0x264a34c0);
regAccept->setT3512_Value(0x5, 0x1e);
std::vector<p_tai_t> tai_list;
p_tai_t item0 = {};
item0.type = 0x00;
nas_plmn_t plmn = {};
plmn.mcc = amf_cfg.plmn_list[0].mcc;
plmn.mnc = amf_cfg.plmn_list[0].mnc;
item0.plmn_list.push_back(plmn);
item0.tac_list.push_back(amf_cfg.plmn_list[0].tac);
tai_list.push_back(item0);
regAccept->setTaiList(tai_list);
//
// std::vector<struct SNSSAI_s> nssai;
// SNSSAI_t snssai;
// snssai.sst = 0;
// snssai.sd = -1;
// snssai.mHplmnSst = -1;
// snssai.mHplmnSd = -1;
// nssai.push_back(snssai);
// regAccept->setALLOWED_NSSAI(nssai);
amf_cfg.guami.AmfSetID, amf_cfg.guami.AmfPointer, uc.get()->tmsi);
uint16_t pdu_session_status = 0xffff;
pdu_session_status = regReq->getPduSessionStatus();
......@@ -3068,8 +2994,7 @@ void amf_n1::run_periodic_registration_update_procedure(
} else {
regAccept->setPDU_session_status(pdu_session_status);
Logger::amf_n1().debug(
"setting pdu session status 0x%02x", htonl(pdu_session_status));
// serApt->setPDU_session_status(0x2000);
"PDU Session Status 0x%02x", htonl(pdu_session_status));
}
regAccept->set_5GS_Network_Feature_Support(0x01, 0x00);
......@@ -3087,22 +3012,12 @@ void amf_n1::run_periodic_registration_update_procedure(
Logger::amf_n1().error("No Security Context found");
return;
}
// protect nas message
bstring protectedNas;
encode_nas_message_protected(
secu, false, INTEGRITY_PROTECTED_AND_CIPHERED, NAS_MESSAGE_DOWNLINK,
buffer, encoded_size, protectedNas);
string supi = "imsi-" + nc.get()->imsi;
Logger::amf_n1().debug("Key for pdu session context SUPI (%s)", supi.c_str());
std::shared_ptr<pdu_session_context> psc;
/* if (amf_n11_inst->is_supi_to_pdu_ctx(supi)) {
psc = amf_n11_inst->supi_to_pdu_ctx(supi);
} else {
Logger::amf_n1().error("Cannot get pdu_session_context with SUPI (%s)",
supi.c_str());
}
*/
itti_dl_nas_transport* itti_msg =
new itti_dl_nas_transport(TASK_AMF_N1, TASK_AMF_N2);
itti_msg->ran_ue_ngap_id = nc.get()->ran_ue_ngap_id;
......@@ -3183,3 +3098,63 @@ void amf_n1::handle_ue_reachability_status_change(
}
}
}
//------------------------------------------------------------------------------
void amf_n1::get_pdu_session_to_be_activated(
uint16_t pdu_session_status,
std::vector<uint8_t>& pdu_session_to_be_activated) {
std::bitset<16> pdu_session_status_bits(pdu_session_status);
for (int i = 0; i < 15; i++) {
if (pdu_session_status_bits.test(i)) {
if (i <= 7)
pdu_session_to_be_activated.push_back(8 + i);
else if (i > 8)
pdu_session_to_be_activated.push_back(i - 8);
}
}
if (pdu_session_to_be_activated.size() > 0) {
for (auto i : pdu_session_to_be_activated)
Logger::amf_n1().debug("PDU session to be activated %d", i);
}
}
//------------------------------------------------------------------------------
void amf_n1::initialize_registration_accept(
std::shared_ptr<nas::RegistrationAccept>& registration_accept) {
registration_accept->setHeader(PLAIN_5GS_MSG);
registration_accept->set_5GS_Registration_Result(
false, false, false, 0x01); // 3GPP Access
registration_accept->setT3512_Value(0x5, 0x1e); // TODO
std::vector<p_tai_t> tai_list;
for (auto p : amf_cfg.plmn_list) {
p_tai_t item = {};
item.type = 0x00;
nas_plmn_t plmn = {};
plmn.mcc = p.mcc;
plmn.mnc = p.mnc;
item.plmn_list.push_back(plmn);
item.tac_list.push_back(p.tac);
tai_list.push_back(item);
}
registration_accept->setTaiList(tai_list);
std::vector<struct SNSSAI_s> nssai;
for (auto p : amf_cfg.plmn_list) {
for (auto s : p.slice_list) {
SNSSAI_t snssai = {};
try {
snssai.sst = std::stoi(s.sST);
snssai.sd = std::stoi(s.sD);
} catch (const std::exception& err) {
Logger::amf_n1().warn("Invalid SST/SD");
return;
}
nssai.push_back(snssai);
}
}
registration_accept->setALLOWED_NSSAI(nssai);
return;
}
src/amf-app/amf_n1.hpp
View file @ 99a1fc56
......@@ -45,6 +45,7 @@
#include "nas_context.hpp"
#include "pdu_session_context.hpp"
#include "amf_event.hpp"
#include "RegistrationAccept.hpp"
namespace amf_application {
......@@ -102,7 +103,6 @@ class amf_n1 {
// procedures
// specific procedures running logic
void run_registration_procedure(std::shared_ptr<nas_context>& nc);
void run_initial_registration_procedure();
void run_mobility_registration_update_procedure(
std::shared_ptr<nas_context> nc, uint16_t uplink_data_status,
uint16_t pdu_session_status);
......@@ -164,6 +164,12 @@ class amf_n1 {
void handle_ue_reachability_status_change(
std::string supi, uint8_t http_version);
void get_pdu_session_to_be_activated(
uint16_t pdu_session_status,
std::vector<uint8_t>& pdu_session_to_be_activated);
void initialize_registration_accept(
std::shared_ptr<nas::RegistrationAccept>& registration_accept);
private:
void ue_initiate_de_registration_handle(
uint32_t ran_ue_ngap_id, long amf_ue_ngap_id, bstring nas);
......
src/contexts/ue_context.cpp
View file @ 99a1fc56
......@@ -30,6 +30,7 @@ ue_context::ue_context() {
cgi = {};
tai = {};
pdu_sessions = {};
tmsi = 0;
}
//------------------------------------------------------------------------------
......
src/contexts/ue_context.hpp
View file @ 99a1fc56
......@@ -68,6 +68,7 @@ class ue_context {
NrCgi_t cgi;
Tai_t tai;
std::string supi;
uint32_t tmsi;
// pdu session id <-> pdu_session_contex: map stores all pdu sessions for this
// UE
std::map<std::uint8_t, std::shared_ptr<pdu_session_context>> pdu_sessions;
......
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