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srsLTE
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Return AUTS in authentication failure for case AUTH_SYNCH_FAILURE

This commit is contained in:
Bedran Karakoc 2021-10-01 19:08:53 +02:00 committed by Bedran Karakoc
parent 361ff3f37a
commit 1e1e1420b1
7 changed files with 19 additions and 15 deletions
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3
srsenb/hdr/stack/ngap/ngap_ue_bearer_manager.h
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@ -41,7 +41,7 @@ public:
std::vector<gtpu_tunnel> tunnels;
};
ngap_ue_bearer_manager(rrc_interface_ngap_nr* rrc_, gtpu_interface_rrc* gtpu_, srslog::basic_logger& logger_);
ngap_ue_bearer_manager(gtpu_interface_rrc* gtpu_, srslog::basic_logger& logger_);
~ngap_ue_bearer_manager();
int add_pdu_session(uint16_t rnti,
@ -58,7 +58,6 @@ public:
private:
gtpu_interface_rrc* gtpu = nullptr;
rrc_interface_ngap_nr* rrc = nullptr;
std::map<uint8_t, pdu_session_t> pdu_session_list;
srslog::basic_logger& logger;

2
srsenb/src/stack/ngap/ngap_ue.cc
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@ -29,7 +29,7 @@ ngap::ue::ue(ngap* ngap_ptr_,
srslog::basic_logger& logger_) :
logger(logger_),
ngap_ptr(ngap_ptr_),
bearer_manager(rrc_ptr_, gtpu_ptr_, logger_),
bearer_manager(gtpu_ptr_, logger_),
initial_context_setup_proc(this, rrc_ptr_, &ctxt, logger_),
ue_context_release_proc(this, rrc_ptr_, &ctxt, &bearer_manager, logger_),
ue_pdu_session_res_setup_proc(this, rrc_ptr_, &ctxt, &bearer_manager, logger_)

6
srsenb/src/stack/ngap/ngap_ue_bearer_manager.cc
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@ -13,10 +13,8 @@
#include "srsenb/hdr/stack/ngap/ngap_ue_bearer_manager.h"
namespace srsenb {
ngap_ue_bearer_manager::ngap_ue_bearer_manager(rrc_interface_ngap_nr* rrc_,
gtpu_interface_rrc* gtpu_,
srslog::basic_logger& logger_) :
gtpu(gtpu_), rrc(rrc_), logger(logger_)
ngap_ue_bearer_manager::ngap_ue_bearer_manager(gtpu_interface_rrc* gtpu_, srslog::basic_logger& logger_) :
gtpu(gtpu_), logger(logger_)
{}
ngap_ue_bearer_manager::~ngap_ue_bearer_manager(){};

2
srsenb/src/stack/ngap/ngap_ue_proc.cc
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@ -82,7 +82,7 @@ proc_outcome_t ngap_ue_ue_context_release_proc::init(const asn1::ngap_nr::ue_con
// TODO: How to approach erasing users ?
bearer_manager->reset_pdu_sessions(ue_ctxt->rnti);
rrc->release_bearers(ue_ctxt->rnti);
parent->send_initial_ctxt_setup_response();
parent->send_ue_ctxt_release_complete();
return proc_outcome_t::success;
}

2
srsue/hdr/stack/upper/nas_5g.h
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@ -125,7 +125,7 @@ private:
int send_registration_request();
int send_authentication_response(const uint8_t res[16]);
int send_security_mode_reject(const srsran::nas_5g::cause_5gmm_t::cause_5gmm_type_::options cause);
int send_authentication_failure(const srsran::nas_5g::cause_5gmm_t::cause_5gmm_type_::options cause);
int send_authentication_failure(const srsran::nas_5g::cause_5gmm_t::cause_5gmm_type_::options cause, const uint8_t res_star[16]);
int send_security_mode_complete(const srsran::nas_5g::security_mode_command_t& security_mode_command);
int send_registration_complete();
int send_pdu_session_establishment_request(uint32_t transaction_identity,

15
srsue/src/stack/upper/nas_5g.cc
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@ -454,7 +454,7 @@ int nas_5g::send_security_mode_complete(const srsran::nas_5g::security_mode_comm
return SRSRAN_SUCCESS;
}
int nas_5g::send_authentication_failure(const cause_5gmm_t::cause_5gmm_type_::options cause)
int nas_5g::send_authentication_failure(const cause_5gmm_t::cause_5gmm_type_::options cause, const uint8_t res[16])
{
unique_byte_buffer_t pdu = srsran::make_byte_buffer();
if (!pdu) {
@ -464,6 +464,13 @@ int nas_5g::send_authentication_failure(const cause_5gmm_t::cause_5gmm_type_::op
nas_5gs_msg nas_msg;
authentication_failure_t& auth_fail = nas_msg.set_authentication_failure();
auth_fail.cause_5gmm.cause_5gmm = cause;
if (cause == cause_5gmm_t::cause_5gmm_type::synch_failure) {
auth_fail.authentication_failure_parameter_present = true;
auth_fail.authentication_failure_parameter.auth_failure.resize(14);
memcpy(auth_fail.authentication_failure_parameter.auth_failure.data(), res, 14);
}
if (nas_msg.pack(pdu) != SRSASN_SUCCESS) {
logger.error("Failed to pack authentication failure.");
@ -655,7 +662,7 @@ int nas_5g::send_identity_response(srsran::nas_5g::identity_type_5gs_t::identity
nas_5gs_msg nas_msg;
identity_response_t& identity_response = nas_msg.set_identity_response();
switch (identity_type) {
case (identity_type_5gs_t::identity_types_::suci): {
srsran::nas_5g::mobile_identity_5gs_t::suci_s& suci = identity_response.mobile_identity.set_suci();
@ -805,10 +812,10 @@ int nas_5g::handle_authentication_request(authentication_request_t& authenticati
} else if (auth_result == AUTH_FAILED) {
logger.error("Network authentication failure.");
send_authentication_failure(cause_5gmm_t::cause_5gmm_type::mac_failure);
send_authentication_failure(cause_5gmm_t::cause_5gmm_type::mac_failure, res_star);
} else if (auth_result == AUTH_SYNCH_FAILURE) {
logger.error("Network authentication synchronization failure.");
send_authentication_failure(cause_5gmm_t::cause_5gmm_type::synch_failure);
send_authentication_failure(cause_5gmm_t::cause_5gmm_type::synch_failure, res_star);
} else {
logger.error("Unhandled authentication failure cause");
}

4
srsue/src/stack/upper/pcsc_usim.cc
View File

@ -181,7 +181,7 @@ auth_result_t pcsc_usim::generate_authentication_response_5g(uint8_t* rand,
case -2:
logger.info("SCARD: USIM synchronization failure, AUTS generated");
logger.debug(auts, AKA_AUTS_LEN, "AUTS");
memcpy(res, auts, AKA_AUTS_LEN);
memcpy(res_star, auts, AKA_AUTS_LEN);
res_len = AKA_AUTS_LEN;
return AUTH_SYNCH_FAILURE;
default:
@ -213,7 +213,7 @@ auth_result_t pcsc_usim::generate_authentication_response_5g(uint8_t* rand,
// Generate K_seaf
security_generate_k_seaf(k_ausf, serving_network_name, k_seaf);
logger.debug(k_seaf, 32, "K SEAF");
// Generate K_seaf
// Generate K_amf
security_generate_k_amf(k_ausf, imsi_str.c_str(), abba, abba_len, k_amf);
logger.debug(k_amf, 32, "K AMF");