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Refactor NAS: separate code into functions

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This commit is contained in:
Robert Schmidt
2023-03-28 14:12:05 +02:00
parent 528025e9a6
commit 223fd28bb2
1 changed files with 95 additions and 111 deletions
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openair3/NAS/NR_UE/nr_nas_msg_sim.c
+95 -111
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@@ -104,6 +104,63 @@ static int _nas_mm_msg_encode_header(const mm_msg_header_t *header,
return (size);
}
static int fill_suci(FGSMobileIdentity *mi, const uicc_t *uicc)
{
mi->suci.typeofidentity = FGS_MOBILE_IDENTITY_SUCI;
mi->suci.mncdigit1 = uicc->nmc_size == 2 ? uicc->imsiStr[3] - '0' : uicc->imsiStr[4] - '0';
mi->suci.mncdigit2 = uicc->nmc_size == 2 ? uicc->imsiStr[4] - '0' : uicc->imsiStr[5] - '0';
mi->suci.mncdigit3 = uicc->nmc_size == 2 ? 0xF : uicc->imsiStr[3] - '0';
mi->suci.mccdigit1 = uicc->imsiStr[0] - '0';
mi->suci.mccdigit2 = uicc->imsiStr[1] - '0';
mi->suci.mccdigit3 = uicc->imsiStr[2] - '0';
memcpy(mi->suci.schemeoutput, uicc->imsiStr + 3 + uicc->nmc_size, strlen(uicc->imsiStr) - (3 + uicc->nmc_size));
return sizeof(Suci5GSMobileIdentity_t);
}
static int fill_guti(FGSMobileIdentity *mi, const uicc_t *uicc)
{
AssertFatal(false, "Need to add AMF data in function\n");
mi->guti.typeofidentity = FGS_MOBILE_IDENTITY_5G_GUTI;
mi->guti.amfregionid = 0xca;
mi->guti.amfpointer = 0;
mi->guti.amfsetid = 1016;
mi->guti.tmsi = 10;
mi->guti.mncdigit1 =
uicc->nmc_size==2 ? uicc->imsiStr[3]-'0' : uicc->imsiStr[4]-'0';
mi->guti.mncdigit2 =
uicc->nmc_size==2 ? uicc->imsiStr[4]-'0' : uicc->imsiStr[5]-'0';
mi->guti.mncdigit3 =
uicc->nmc_size==2 ? 0xf : uicc->imsiStr[3]-'0';
mi->guti.mccdigit1 = uicc->imsiStr[0]-'0';
mi->guti.mccdigit2 = uicc->imsiStr[1]-'0';
mi->guti.mccdigit3 = uicc->imsiStr[2]-'0';
return 13;
}
static int fill_imeisv(FGSMobileIdentity *mi, int Mod_id)
{
int i=0;
mi->imeisv.typeofidentity = FGS_MOBILE_IDENTITY_IMEISV;
mi->imeisv.digittac01 = getImeisvDigit(Mod_id,i++);
mi->imeisv.digittac02 = getImeisvDigit(Mod_id,i++);
mi->imeisv.digittac03 = getImeisvDigit(Mod_id,i++);
mi->imeisv.digittac04 = getImeisvDigit(Mod_id,i++);
mi->imeisv.digittac05 = getImeisvDigit(Mod_id,i++);
mi->imeisv.digittac06 = getImeisvDigit(Mod_id,i++);
mi->imeisv.digittac07 = getImeisvDigit(Mod_id,i++);
mi->imeisv.digittac08 = getImeisvDigit(Mod_id,i++);
mi->imeisv.digit09 = getImeisvDigit(Mod_id,i++);
mi->imeisv.digit10 = getImeisvDigit(Mod_id,i++);
mi->imeisv.digit11 = getImeisvDigit(Mod_id,i++);
mi->imeisv.digit12 = getImeisvDigit(Mod_id,i++);
mi->imeisv.digit13 = getImeisvDigit(Mod_id,i++);
mi->imeisv.digit14 = getImeisvDigit(Mod_id,i++);
mi->imeisv.digitsv1 = getImeisvDigit(Mod_id,i++);
mi->imeisv.digitsv2 = getImeisvDigit(Mod_id,i++);
mi->imeisv.spare = 0x0f;
mi->imeisv.oddeven = 1;
return 19;
}
int mm_msg_encode(MM_msg *mm_msg, uint8_t *buffer, uint32_t len) {
LOG_FUNC_IN;
@@ -394,36 +451,9 @@ void generateRegistrationRequest(as_nas_info_t *initialNasMsg, int Mod_id) {
mm_msg->registration_request.naskeysetidentifier.naskeysetidentifier = 1;
size += 1;
if(0){
mm_msg->registration_request.fgsmobileidentity.guti.typeofidentity = FGS_MOBILE_IDENTITY_5G_GUTI;
mm_msg->registration_request.fgsmobileidentity.guti.amfregionid = 0xca;
mm_msg->registration_request.fgsmobileidentity.guti.amfpointer = 0;
mm_msg->registration_request.fgsmobileidentity.guti.amfsetid = 1016;
mm_msg->registration_request.fgsmobileidentity.guti.tmsi = 10;
mm_msg->registration_request.fgsmobileidentity.guti.mncdigit1 =
uicc->nmc_size==2 ? uicc->imsiStr[3]-'0' : uicc->imsiStr[4]-'0';
mm_msg->registration_request.fgsmobileidentity.guti.mncdigit2 =
uicc->nmc_size==2 ? uicc->imsiStr[4]-'0' : uicc->imsiStr[5]-'0';
mm_msg->registration_request.fgsmobileidentity.guti.mncdigit3 =
uicc->nmc_size==2 ? 0xf : uicc->imsiStr[3]-'0';
mm_msg->registration_request.fgsmobileidentity.guti.mccdigit1 = uicc->imsiStr[0]-'0';
mm_msg->registration_request.fgsmobileidentity.guti.mccdigit2 = uicc->imsiStr[1]-'0';
mm_msg->registration_request.fgsmobileidentity.guti.mccdigit3 = uicc->imsiStr[2]-'0';
size += 13;
size += fill_guti(&mm_msg->registration_request.fgsmobileidentity, uicc);
} else {
mm_msg->registration_request.fgsmobileidentity.suci.typeofidentity = FGS_MOBILE_IDENTITY_SUCI;
mm_msg->registration_request.fgsmobileidentity.suci.mncdigit1 =
uicc->nmc_size==2 ? uicc->imsiStr[3]-'0' : uicc->imsiStr[4]-'0';
mm_msg->registration_request.fgsmobileidentity.suci.mncdigit2 =
uicc->nmc_size==2 ? uicc->imsiStr[4]-'0' : uicc->imsiStr[5]-'0';
mm_msg->registration_request.fgsmobileidentity.suci.mncdigit3 =
uicc->nmc_size==2 ? 0xf : uicc->imsiStr[3]-'0';
mm_msg->registration_request.fgsmobileidentity.suci.mccdigit1 = uicc->imsiStr[0]-'0';
mm_msg->registration_request.fgsmobileidentity.suci.mccdigit2 = uicc->imsiStr[1]-'0';
mm_msg->registration_request.fgsmobileidentity.suci.mccdigit3 = uicc->imsiStr[2]-'0';
memcpy(mm_msg->registration_request.fgsmobileidentity.suci.schemeoutput, uicc->imsiStr+3+uicc->nmc_size, strlen(uicc->imsiStr) - (3+uicc->nmc_size));
size += sizeof(Suci5GSMobileIdentity_t);
size += fill_suci(&mm_msg->registration_request.fgsmobileidentity, uicc);
}
mm_msg->registration_request.presencemask |= REGISTRATION_REQUEST_5GMM_CAPABILITY_PRESENT;
@@ -471,18 +501,7 @@ void generateIdentityResponse(as_nas_info_t *initialNasMsg, uint8_t identitytype
mm_msg->fgs_identity_response.messagetype = FGS_IDENTITY_RESPONSE;
size += 1;
if(identitytype == FGS_MOBILE_IDENTITY_SUCI){
mm_msg->fgs_identity_response.fgsmobileidentity.suci.typeofidentity = FGS_MOBILE_IDENTITY_SUCI;
mm_msg->fgs_identity_response.fgsmobileidentity.suci.mncdigit1 =
uicc->nmc_size==2 ? uicc->imsiStr[3]-'0' : uicc->imsiStr[4]-'0';
mm_msg->fgs_identity_response.fgsmobileidentity.suci.mncdigit2 =
uicc->nmc_size==2 ? uicc->imsiStr[4]-'0' : uicc->imsiStr[5]-'0';
mm_msg->fgs_identity_response.fgsmobileidentity.suci.mncdigit3 =
uicc->nmc_size==2? 0xF : uicc->imsiStr[3]-'0';
mm_msg->fgs_identity_response.fgsmobileidentity.suci.mccdigit1 = uicc->imsiStr[0]-'0';
mm_msg->fgs_identity_response.fgsmobileidentity.suci.mccdigit2 = uicc->imsiStr[1]-'0';
mm_msg->fgs_identity_response.fgsmobileidentity.suci.mccdigit3 = uicc->imsiStr[2]-'0';
memcpy(mm_msg->registration_request.fgsmobileidentity.suci.schemeoutput, uicc->imsiStr+3+uicc->nmc_size, strlen(uicc->imsiStr) - (3+uicc->nmc_size));
size += sizeof(Suci5GSMobileIdentity_t);
size += fill_suci(&mm_msg->fgs_identity_response.fgsmobileidentity, uicc);
}
// encode the message
@@ -535,31 +554,6 @@ int nas_itti_kgnb_refresh_req(const uint8_t kgnb[32], int instance) {
return itti_send_msg_to_task(TASK_RRC_NRUE, instance, message_p);
}
static int addImeisv(int Mod_id,MM_msg *mm_msg)
{
int i=0;
mm_msg->fgs_security_mode_complete.fgsmobileidentity.imeisv.typeofidentity = FGS_MOBILE_IDENTITY_IMEISV;
mm_msg->fgs_security_mode_complete.fgsmobileidentity.imeisv.digittac01 = getImeisvDigit(Mod_id,i++);
mm_msg->fgs_security_mode_complete.fgsmobileidentity.imeisv.digittac02 = getImeisvDigit(Mod_id,i++);
mm_msg->fgs_security_mode_complete.fgsmobileidentity.imeisv.digittac03 = getImeisvDigit(Mod_id,i++);
mm_msg->fgs_security_mode_complete.fgsmobileidentity.imeisv.digittac04 = getImeisvDigit(Mod_id,i++);
mm_msg->fgs_security_mode_complete.fgsmobileidentity.imeisv.digittac05 = getImeisvDigit(Mod_id,i++);
mm_msg->fgs_security_mode_complete.fgsmobileidentity.imeisv.digittac06 = getImeisvDigit(Mod_id,i++);
mm_msg->fgs_security_mode_complete.fgsmobileidentity.imeisv.digittac07 = getImeisvDigit(Mod_id,i++);
mm_msg->fgs_security_mode_complete.fgsmobileidentity.imeisv.digittac08 = getImeisvDigit(Mod_id,i++);
mm_msg->fgs_security_mode_complete.fgsmobileidentity.imeisv.digit09 = getImeisvDigit(Mod_id,i++);
mm_msg->fgs_security_mode_complete.fgsmobileidentity.imeisv.digit10 = getImeisvDigit(Mod_id,i++);
mm_msg->fgs_security_mode_complete.fgsmobileidentity.imeisv.digit11 = getImeisvDigit(Mod_id,i++);
mm_msg->fgs_security_mode_complete.fgsmobileidentity.imeisv.digit12 = getImeisvDigit(Mod_id,i++);
mm_msg->fgs_security_mode_complete.fgsmobileidentity.imeisv.digit13 = getImeisvDigit(Mod_id,i++);
mm_msg->fgs_security_mode_complete.fgsmobileidentity.imeisv.digit14 = getImeisvDigit(Mod_id,i++);
mm_msg->fgs_security_mode_complete.fgsmobileidentity.imeisv.digitsv1 = getImeisvDigit(Mod_id,i++);
mm_msg->fgs_security_mode_complete.fgsmobileidentity.imeisv.digitsv2 = getImeisvDigit(Mod_id,i++);
mm_msg->fgs_security_mode_complete.fgsmobileidentity.imeisv.spare = 0x0f;
mm_msg->fgs_security_mode_complete.fgsmobileidentity.imeisv.oddeven = 1;
return 19;
}
static void generateSecurityModeComplete(int Mod_id,as_nas_info_t *initialNasMsg)
{
int size = sizeof(mm_msg_header_t);
@@ -589,7 +583,7 @@ static void generateSecurityModeComplete(int Mod_id,as_nas_info_t *initialNasMsg
mm_msg->fgs_security_mode_complete.messagetype = FGS_SECURITY_MODE_COMPLETE;
size += 1;
size += addImeisv(Mod_id, mm_msg);
size += fill_imeisv(&mm_msg->fgs_security_mode_complete.fgsmobileidentity, Mod_id);
mm_msg->fgs_security_mode_complete.fgsnasmessagecontainer.nasmessagecontainercontents.value = registration_request_buf;
mm_msg->fgs_security_mode_complete.fgsnasmessagecontainer.nasmessagecontainercontents.length = registration_request_len;
@@ -838,11 +832,20 @@ uint8_t get_msg_type(uint8_t *pdu_buffer, uint32_t length) {
return msg_type;
}
static void send_nas_uplink_data_req(instance_t instance, const as_nas_info_t *initial_nas_msg)
{
MessageDef *msg = itti_alloc_new_message(TASK_NAS_NRUE, 0, NAS_UPLINK_DATA_REQ);
ul_info_transfer_req_t *req = &NAS_UPLINK_DATA_REQ(msg);
req->UEid = instance;
req->nasMsg.data = (uint8_t *) initial_nas_msg->data;
req->nasMsg.length = initial_nas_msg->length;
itti_send_msg_to_task(TASK_RRC_NRUE, instance, msg);
}
void *nas_nrue_task(void *args_p)
{
MessageDef *msg_p;
instance_t instance;
unsigned int Mod_id;
int result;
uint8_t msg_type = 0;
uint8_t *pdu_buffer = NULL;
@@ -857,9 +860,7 @@ void *nas_nrue_task(void *args_p)
if (msg_p != NULL) {
instance = msg_p->ittiMsgHeader.originInstance;
Mod_id = instance ;
uicc_t *uicc=checkUicc(Mod_id);
LOG_I(NAS, "[UE %d] Received %s\n", Mod_id, ITTI_MSG_NAME(msg_p));
uicc_t *uicc=checkUicc(instance);
if (instance == INSTANCE_DEFAULT) {
printf("%s:%d: FATAL: instance is INSTANCE_DEFAULT, should not happen.\n",
@@ -881,8 +882,8 @@ void *nas_nrue_task(void *args_p)
case NAS_CELL_SELECTION_CNF:
LOG_I(NAS,
"[UE %d] Received %s: errCode %u, cellID %u, tac %u\n",
Mod_id,
"[UE %ld] Received %s: errCode %u, cellID %u, tac %u\n",
instance,
ITTI_MSG_NAME(msg_p),
NAS_CELL_SELECTION_CNF(msg_p).errCode,
NAS_CELL_SELECTION_CNF(msg_p).cellID,
@@ -895,19 +896,19 @@ void *nas_nrue_task(void *args_p)
break;
case NAS_CELL_SELECTION_IND:
LOG_I(NAS, "[UE %d] Received %s: cellID %u, tac %u\n", Mod_id, ITTI_MSG_NAME(msg_p), NAS_CELL_SELECTION_IND(msg_p).cellID, NAS_CELL_SELECTION_IND(msg_p).tac);
LOG_I(NAS, "[UE %ld] Received %s: cellID %u, tac %u\n", instance, ITTI_MSG_NAME(msg_p), NAS_CELL_SELECTION_IND(msg_p).cellID, NAS_CELL_SELECTION_IND(msg_p).tac);
/* TODO not processed by NAS currently */
break;
case NAS_PAGING_IND:
LOG_I(NAS, "[UE %d] Received %s: cause %u\n", Mod_id, ITTI_MSG_NAME(msg_p), NAS_PAGING_IND(msg_p).cause);
LOG_I(NAS, "[UE %ld] Received %s: cause %u\n", instance, ITTI_MSG_NAME(msg_p), NAS_PAGING_IND(msg_p).cause);
/* TODO not processed by NAS currently */
break;
case NAS_CONN_ESTABLI_CNF: {
LOG_I(NAS, "[UE %d] Received %s: errCode %u, length %u\n", Mod_id, ITTI_MSG_NAME(msg_p), NAS_CONN_ESTABLI_CNF(msg_p).errCode, NAS_CONN_ESTABLI_CNF(msg_p).nasMsg.length);
LOG_I(NAS, "[UE %ld] Received %s: errCode %u, length %u\n", instance, ITTI_MSG_NAME(msg_p), NAS_CONN_ESTABLI_CNF(msg_p).errCode, NAS_CONN_ESTABLI_CNF(msg_p).nasMsg.length);
pdu_buffer = NAS_CONN_ESTABLI_CNF(msg_p).nasMsg.data;
msg_type = get_msg_type(pdu_buffer, NAS_CONN_ESTABLI_CNF(msg_p).nasMsg.length);
@@ -917,27 +918,17 @@ void *nas_nrue_task(void *args_p)
as_nas_info_t initialNasMsg;
memset(&initialNasMsg, 0, sizeof(as_nas_info_t));
generateRegistrationComplete(Mod_id, &initialNasMsg, NULL);
generateRegistrationComplete(instance, &initialNasMsg, NULL);
if (initialNasMsg.length > 0) {
MessageDef *message_p;
message_p = itti_alloc_new_message(TASK_NAS_NRUE, 0, NAS_UPLINK_DATA_REQ);
NAS_UPLINK_DATA_REQ(message_p).UEid = Mod_id;
NAS_UPLINK_DATA_REQ(message_p).nasMsg.data = (uint8_t *)initialNasMsg.data;
NAS_UPLINK_DATA_REQ(message_p).nasMsg.length = initialNasMsg.length;
itti_send_msg_to_task(TASK_RRC_NRUE, instance, message_p);
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));
generatePduSessionEstablishRequest(Mod_id, uicc, &pduEstablishMsg);
generatePduSessionEstablishRequest(instance, uicc, &pduEstablishMsg);
if (pduEstablishMsg.length > 0) {
MessageDef *message_p;
message_p = itti_alloc_new_message(TASK_NAS_NRUE, 0, NAS_UPLINK_DATA_REQ);
NAS_UPLINK_DATA_REQ(message_p).UEid = Mod_id;
NAS_UPLINK_DATA_REQ(message_p).nasMsg.data = (uint8_t *)pduEstablishMsg.data;
NAS_UPLINK_DATA_REQ(message_p).nasMsg.length = pduEstablishMsg.length;
itti_send_msg_to_task(TASK_RRC_NRUE, instance, message_p);
send_nas_uplink_data_req(instance, &pduEstablishMsg);
LOG_I(NAS, "Send NAS_UPLINK_DATA_REQ message(PduSessionEstablishRequest)\n");
}
} else if (msg_type == FGS_PDU_SESSION_ESTABLISHMENT_ACC) {
@@ -948,24 +939,25 @@ void *nas_nrue_task(void *args_p)
}
case NAS_CONN_RELEASE_IND:
LOG_I(NAS, "[UE %d] Received %s: cause %u\n", Mod_id, ITTI_MSG_NAME (msg_p),
LOG_I(NAS, "[UE %ld] Received %s: cause %u\n", instance, ITTI_MSG_NAME (msg_p),
NAS_CONN_RELEASE_IND (msg_p).cause);
break;
case NAS_UPLINK_DATA_CNF:
LOG_I(NAS, "[UE %d] Received %s: UEid %u, errCode %u\n", Mod_id, ITTI_MSG_NAME (msg_p),
LOG_I(NAS, "[UE %ld] Received %s: UEid %u, errCode %u\n", instance, ITTI_MSG_NAME (msg_p),
NAS_UPLINK_DATA_CNF (msg_p).UEid, NAS_UPLINK_DATA_CNF (msg_p).errCode);
break;
case NAS_DOWNLINK_DATA_IND:
{
LOG_I(NAS, "[UE %d] Received %s: UEid %u, length %u , buffer %p\n", Mod_id,
ITTI_MSG_NAME (msg_p),
Mod_id,
NAS_DOWNLINK_DATA_IND(msg_p).nasMsg.length,
NAS_DOWNLINK_DATA_IND(msg_p).nasMsg.data);
LOG_I(NAS,
"[UE %ld] Received %s: length %u , buffer %p\n",
instance,
ITTI_MSG_NAME(msg_p),
NAS_DOWNLINK_DATA_IND(msg_p).nasMsg.length,
NAS_DOWNLINK_DATA_IND(msg_p).nasMsg.data);
as_nas_info_t initialNasMsg={0};
pdu_buffer = NAS_DOWNLINK_DATA_IND(msg_p).nasMsg.data;
@@ -977,11 +969,11 @@ void *nas_nrue_task(void *args_p)
generateIdentityResponse(&initialNasMsg,*(pdu_buffer+3), uicc);
break;
case FGS_AUTHENTICATION_REQUEST:
generateAuthenticationResp(Mod_id,&initialNasMsg, pdu_buffer, uicc);
generateAuthenticationResp(instance,&initialNasMsg, pdu_buffer, uicc);
break;
case FGS_SECURITY_MODE_COMMAND:
nas_itti_kgnb_refresh_req(ue_security_key[Mod_id]->kgnb, instance);
generateSecurityModeComplete(Mod_id,&initialNasMsg);
nas_itti_kgnb_refresh_req(ue_security_key[instance]->kgnb, instance);
generateSecurityModeComplete(instance,&initialNasMsg);
break;
case FGS_DOWNLINK_NAS_TRANSPORT:
decodeDownlinkNASTransport(&initialNasMsg, pdu_buffer);
@@ -1021,21 +1013,13 @@ void *nas_nrue_task(void *args_p)
break;
}
if(initialNasMsg.length > 0){
MessageDef *message_p;
message_p = itti_alloc_new_message(TASK_NAS_NRUE, 0, NAS_UPLINK_DATA_REQ);
NAS_UPLINK_DATA_REQ(message_p).UEid = Mod_id;
NAS_UPLINK_DATA_REQ(message_p).nasMsg.data = (uint8_t *)initialNasMsg.data;
NAS_UPLINK_DATA_REQ(message_p).nasMsg.length = initialNasMsg.length;
itti_send_msg_to_task(TASK_RRC_NRUE, instance, message_p);
LOG_I(NAS, "Send NAS_UPLINK_DATA_REQ message\n");
if (initialNasMsg.length > 0)
send_nas_uplink_data_req(instance, &initialNasMsg);
}
}
break;
default:
LOG_E(NAS, "[UE %d] Received unexpected message %s\n", Mod_id, ITTI_MSG_NAME (msg_p));
LOG_E(NAS, "[UE %ld] Received unexpected message %s\n", instance, ITTI_MSG_NAME (msg_p));
break;
}