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Commit 4219839e authored by Laurent THOMAS's avatar Laurent THOMAS
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add-registration-accept-inside-nas-downlink as it is a valid 3GPP message and... 

add-registration-accept-inside-nas-downlink as it is a valid 3GPP message and a commercial gNB uses it
parent afc75c5d
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Showing with 50 additions and 32 deletions
openair3/NAS/NR_UE/nr_nas_msg_sim.c
View file @ 4219839e
......@@ -980,16 +980,14 @@ void *nas_nrue_task(void *args_p)
LOG_I(NAS, "[UE] Received REGISTRATION ACCEPT message\n");
decodeRegistrationAccept(pdu_buffer, NAS_CONN_ESTABLI_CNF(msg_p).nasMsg.length, nas);
as_nas_info_t initialNasMsg;
memset(&initialNasMsg, 0, sizeof(as_nas_info_t));
as_nas_info_t initialNasMsg = {0};
generateRegistrationComplete(nas, &initialNasMsg, NULL);
if (initialNasMsg.length > 0) {
send_nas_uplink_data_req(instance, &initialNasMsg);
LOG_I(NAS, "Send NAS_UPLINK_DATA_REQ message(RegistrationComplete)\n");
}
as_nas_info_t pduEstablishMsg;
memset(&pduEstablishMsg, 0, sizeof(as_nas_info_t));
as_nas_info_t pduEstablishMsg = {0};
generatePduSessionEstablishRequest(nas, &pduEstablishMsg);
if (pduEstablishMsg.length > 0) {
send_nas_uplink_data_req(instance, &pduEstablishMsg);
......@@ -1060,37 +1058,57 @@ void *nas_nrue_task(void *args_p)
case FGS_DOWNLINK_NAS_TRANSPORT:
decodeDownlinkNASTransport(&initialNasMsg, pdu_buffer);
break;
case REGISTRATION_ACCEPT:
LOG_I(NAS, "[UE] Received REGISTRATION ACCEPT message\n");
decodeRegistrationAccept(pdu_buffer, NAS_DOWNLINK_DATA_IND(msg_p).nasMsg.length, nas);
as_nas_info_t initialNasMsg = {0};
generateRegistrationComplete(nas, &initialNasMsg, NULL);
if (initialNasMsg.length > 0) {
send_nas_uplink_data_req(instance, &initialNasMsg);
LOG_I(NAS, "Send NAS_UPLINK_DATA_REQ message(RegistrationComplete)\n");
}
as_nas_info_t pduEstablishMsg = {0};
generatePduSessionEstablishRequest(nas, &pduEstablishMsg);
if (pduEstablishMsg.length > 0) {
send_nas_uplink_data_req(instance, &pduEstablishMsg);
LOG_I(NAS, "Send NAS_UPLINK_DATA_REQ message(PduSessionEstablishRequest)\n");
}
break;
case FGS_DEREGISTRATION_ACCEPT:
LOG_I(NAS, "received deregistration accept\n");
break;
case FGS_PDU_SESSION_ESTABLISHMENT_ACC:
{
uint8_t offset = 0;
uint8_t *payload_container = pdu_buffer;
offset += SECURITY_PROTECTED_5GS_NAS_MESSAGE_HEADER_LENGTH;
uint32_t payload_container_length = htons(((dl_nas_transport_t *)(pdu_buffer + offset))->payload_container_length);
if ((payload_container_length >= PAYLOAD_CONTAINER_LENGTH_MIN) &&
(payload_container_length <= PAYLOAD_CONTAINER_LENGTH_MAX))
offset += (PLAIN_5GS_NAS_MESSAGE_HEADER_LENGTH + 3);
if (offset < NAS_CONN_ESTABLI_CNF(msg_p).nasMsg.length)
payload_container = pdu_buffer + offset;
while(offset < payload_container_length) {
if (*(payload_container + offset) == 0x29) { // PDU address IEI
if ((*(payload_container+offset+1) == 0x05) && (*(payload_container +offset+2) == 0x01)) { // IPV4
nas_getparams();
sprintf(baseNetAddress, "%d.%d", *(payload_container+offset+3), *(payload_container+offset+4));
int third_octet = *(payload_container+offset+5);
int fourth_octet = *(payload_container+offset+6);
LOG_I(NAS, "Received PDU Session Establishment Accept, UE IP: %d.%d.%d.%d\n",
*(payload_container+offset+3), *(payload_container+offset+4),
*(payload_container+offset+5), *(payload_container+offset+6));
nas_config(1,third_octet,fourth_octet,"oaitun_ue");
break;
}
}
offset++;
}
case FGS_PDU_SESSION_ESTABLISHMENT_ACC: {
uint8_t offset = 0;
uint8_t *payload_container = pdu_buffer;
offset += SECURITY_PROTECTED_5GS_NAS_MESSAGE_HEADER_LENGTH;
uint32_t payload_container_length = htons(((dl_nas_transport_t *)(pdu_buffer + offset))->payload_container_length);
if ((payload_container_length >= PAYLOAD_CONTAINER_LENGTH_MIN)
&& (payload_container_length <= PAYLOAD_CONTAINER_LENGTH_MAX))
offset += (PLAIN_5GS_NAS_MESSAGE_HEADER_LENGTH + 3);
if (offset < NAS_CONN_ESTABLI_CNF(msg_p).nasMsg.length)
payload_container = pdu_buffer + offset;
while (offset < payload_container_length) {
if (*(payload_container + offset) == 0x29) { // PDU address IEI
if ((*(payload_container + offset + 1) == 0x05) && (*(payload_container + offset + 2) == 0x01)) { // IPV4
nas_getparams();
sprintf(baseNetAddress, "%d.%d", *(payload_container + offset + 3), *(payload_container + offset + 4));
int third_octet = *(payload_container + offset + 5);
int fourth_octet = *(payload_container + offset + 6);
LOG_I(NAS,
"Received PDU Session Establishment Accept, UE IP: %d.%d.%d.%d\n",
*(payload_container + offset + 3),
*(payload_container + offset + 4),
*(payload_container + offset + 5),
*(payload_container + offset + 6));
nas_config(1, third_octet, fourth_octet, "oaitun_ue");
break;
}
}
offset++;
}
}
break;
default:
......
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