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fixed handling of UE indentity request

This commit is contained in:
Andre Puschmann 2018-09-20 11:55:42 +02:00
parent 4a8d83721a
commit f458d58527
2 changed files with 42 additions and 25 deletions
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2
srsue/hdr/upper/nas.h
View File

@ -180,7 +180,7 @@ private:
void gen_service_request(byte_buffer_t *msg);
// Senders
void send_identity_response();
void send_identity_response(uint32_t lcid, uint8 id_type);
void send_service_request();
void send_esm_information_response(const uint8 proc_transaction_id);
void send_authentication_response(const uint8_t* res, const size_t res_len, const uint8_t sec_hdr_type);

65
srsue/src/upper/nas.cc
View File

@ -805,31 +805,15 @@ void nas::parse_identity_request(uint32_t lcid, byte_buffer_t *pdu) {
ZERO_OBJECT(id_resp);
liblte_mme_unpack_identity_request_msg((LIBLTE_BYTE_MSG_STRUCT *) pdu, &id_req);
// Deallocate PDU after parsing
pool->deallocate(pdu);
ctxt.rx_count++;
nas_log->info("Received Identity Request. ID type: %d\n", id_req.id_type);
switch(id_req.id_type) {
case LIBLTE_MME_MOBILE_ID_TYPE_IMSI:
id_resp.mobile_id.type_of_id = LIBLTE_MME_MOBILE_ID_TYPE_IMSI;
usim->get_imsi_vec(id_resp.mobile_id.imsi, 15);
break;
case LIBLTE_MME_MOBILE_ID_TYPE_IMEI:
id_resp.mobile_id.type_of_id = LIBLTE_MME_MOBILE_ID_TYPE_IMEI;
usim->get_imei_vec(id_resp.mobile_id.imei, 15);
break;
default:
nas_log->error("Unhandled ID type: %d\n", id_req.id_type);
pool->deallocate(pdu);
return;
}
pdu->reset();
liblte_mme_pack_identity_response_msg(&id_resp, (LIBLTE_BYTE_MSG_STRUCT *) pdu);
if(pcap != NULL) {
pcap->write_nas(pdu->msg, pdu->N_bytes);
}
rrc->write_sdu(lcid, pdu);
send_identity_response(lcid, id_req.id_type);
}
void nas::parse_security_mode_command(uint32_t lcid, byte_buffer_t *pdu)
@ -1329,7 +1313,40 @@ void nas::send_authentication_failure(const uint8_t cause, const uint8_t* auth_f
}
void nas::send_identity_response() {}
void nas::send_identity_response(uint32_t lcid, uint8 id_type)
{
LIBLTE_MME_ID_RESPONSE_MSG_STRUCT id_resp;
ZERO_OBJECT(id_resp);
switch(id_type) {
case LIBLTE_MME_MOBILE_ID_TYPE_IMSI:
id_resp.mobile_id.type_of_id = LIBLTE_MME_MOBILE_ID_TYPE_IMSI;
usim->get_imsi_vec(id_resp.mobile_id.imsi, 15);
break;
case LIBLTE_MME_MOBILE_ID_TYPE_IMEI:
id_resp.mobile_id.type_of_id = LIBLTE_MME_MOBILE_ID_TYPE_IMEI;
usim->get_imei_vec(id_resp.mobile_id.imei, 15);
break;
default:
nas_log->error("Unhandled ID type: %d\n", id_type);
return;
}
byte_buffer_t *pdu = pool_allocate_blocking;
if (!pdu) {
nas_log->error("Fatal Error: Couldn't allocate PDU in send_identity_response().\n");
return;
}
liblte_mme_pack_identity_response_msg(&id_resp, (LIBLTE_BYTE_MSG_STRUCT *) pdu);
if(pcap != NULL) {
pcap->write_nas(pdu->msg, pdu->N_bytes);
}
rrc->write_sdu(lcid, pdu);
ctxt.tx_count++;
}
void nas::send_service_request() {
byte_buffer_t *msg = pool_allocate_blocking;