static void
itti_dump_user_data_delete_function (
void *user_data,
void *user_state)
{
(void)user_state; // UNUSED
if (user_data != NULL) {
itti_dump_queue_item_t *item;
task_id_t task_id;
int result;
item = (itti_dump_queue_item_t *) user_data;
if (item->data != NULL) {
task_id = ITTI_MSG_ORIGIN_ID (item->data);
result = itti_free (task_id, item->data);
AssertFatal (result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result);
} else {
task_id = TASK_UNKNOWN;
}
result = itti_free (task_id, item);
AssertFatal (result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result);
}
}
void *s6a_thread(void *args)
{
itti_mark_task_ready(TASK_S6A);
while(1) {
MessageDef *received_message_p = NULL;
/* Trying to fetch a message from the message queue.
* If the queue is empty, this function will block till a
* message is sent to the task.
*/
itti_receive_msg(TASK_S6A, &received_message_p);
DevAssert(received_message_p != NULL);
switch (ITTI_MSG_ID(received_message_p))
{
case S6A_UPDATE_LOCATION_REQ: {
s6a_generate_update_location(&received_message_p->ittiMsg.s6a_update_location_req);
} break;
case S6A_AUTH_INFO_REQ: {
s6a_generate_authentication_info_req(&received_message_p->ittiMsg.s6a_auth_info_req);
} break;
case TERMINATE_MESSAGE: {
itti_exit_task();
} break;
default: {
S6A_DEBUG("Unkwnon message ID %d:%s\n",
ITTI_MSG_ID(received_message_p), ITTI_MSG_NAME(received_message_p));
} break;
}
itti_free(ITTI_MSG_ORIGIN_ID(received_message_p), received_message_p);
received_message_p = NULL;
}
return NULL;
}
void *x2ap_task(void *arg)
{
MessageDef *received_msg = NULL;
int result;
X2AP_DEBUG("Starting X2AP layer\n");
x2ap_prepare_internal_data();
itti_mark_task_ready(TASK_X2AP);
while (1) {
itti_receive_msg(TASK_X2AP, &received_msg);
switch (ITTI_MSG_ID(received_msg)) {
case TERMINATE_MESSAGE:
itti_exit_task();
break;
default:
X2AP_ERROR("Received unhandled message: %d:%s\n",
ITTI_MSG_ID(received_msg), ITTI_MSG_NAME(received_msg));
break;
}
result = itti_free (ITTI_MSG_ORIGIN_ID(received_msg), received_msg);
AssertFatal (result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result);
received_msg = NULL;
}
return NULL;
}
/*
* enb agent task mainly wakes up the tx thread for periodic and oneshot messages to the controller
* and can interact with other itti tasks
*/
void *flexran_agent_task(void *args){
//flexran_agent_instance_t *d = (flexran_agent_instance_t *) args;
Protocol__FlexranMessage *msg;
void *data;
int size;
err_code_t err_code;
int priority = 0;
MessageDef *msg_p = NULL;
const char *msg_name = NULL;
int result;
struct flexran_agent_timer_element_s * elem = NULL;
itti_mark_task_ready(TASK_FLEXRAN_AGENT);
do {
// Wait for a message
itti_receive_msg (TASK_FLEXRAN_AGENT, &msg_p);
DevAssert(msg_p != NULL);
msg_name = ITTI_MSG_NAME (msg_p);
switch (ITTI_MSG_ID(msg_p)) {
case TERMINATE_MESSAGE:
itti_exit_task ();
break;
case MESSAGE_TEST:
LOG_I(FLEXRAN_AGENT, "Received %s\n", ITTI_MSG_NAME(msg_p));
break;
case TIMER_HAS_EXPIRED:
msg = flexran_agent_process_timeout(msg_p->ittiMsg.timer_has_expired.timer_id, msg_p->ittiMsg.timer_has_expired.arg);
if (msg != NULL){
data=flexran_agent_pack_message(msg,&size);
elem = get_timer_entry(msg_p->ittiMsg.timer_has_expired.timer_id);
if (flexran_agent_msg_send(elem->agent_id, FLEXRAN_AGENT_DEFAULT, data, size, priority)) {
err_code = PROTOCOL__FLEXRAN_ERR__MSG_ENQUEUING;
goto error;
}
LOG_D(FLEXRAN_AGENT,"sent message with size %d\n", size);
}
break;
default:
LOG_E(FLEXRAN_AGENT, "Received unexpected message %s\n", msg_name);
break;
}
result = itti_free (ITTI_MSG_ORIGIN_ID(msg_p), msg_p);
AssertFatal (result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result);
continue;
error:
LOG_E(FLEXRAN_AGENT,"flexran_agent_task: error %d occured\n",err_code);
} while (1);
return NULL;
}
static void *sctp_intertask_interface(void *args_p)
{
itti_mark_task_ready(TASK_SCTP);
MSC_START_USE();
while(1) {
MessageDef *received_message_p;
itti_receive_msg(TASK_SCTP, &received_message_p);
switch (ITTI_MSG_ID(received_message_p)) {
case SCTP_INIT_MSG: {
SCTP_DEBUG("Received SCTP_INIT_MSG\n");
/* We received a new connection request */
if (sctp_create_new_listener(&received_message_p->ittiMsg.sctpInit) < 0) {
/* SCTP socket creation or bind failed... */
SCTP_ERROR("Failed to create new SCTP listener\n");
}
}
break;
case SCTP_CLOSE_ASSOCIATION: {
} break;
case SCTP_DATA_REQ: {
if (sctp_send_msg(SCTP_DATA_REQ(received_message_p).assocId,
SCTP_DATA_REQ(received_message_p).stream,
SCTP_DATA_REQ(received_message_p).buffer,
SCTP_DATA_REQ(received_message_p).bufLen) < 0) {
SCTP_ERROR("Failed to send message over SCTP\n");
}
}
break;
case MESSAGE_TEST: {
// int i = 10000;
// while(i--);
} break;
case TERMINATE_MESSAGE: {
itti_exit_task();
}
break;
default: {
SCTP_DEBUG("Unkwnon message ID %d:%s\n",
ITTI_MSG_ID(received_message_p),
ITTI_MSG_NAME(received_message_p));
}
break;
}
itti_free(ITTI_MSG_ORIGIN_ID(received_message_p), received_message_p);
received_message_p = NULL;
}
return NULL;
}
static void *gtpv1u_thread(void *args)
{
itti_mark_task_ready(TASK_GTPV1_U);
MSC_START_USE();
while(1) {
/* Trying to fetch a message from the message queue.
* If the queue is empty, this function will block till a
* message is sent to the task.
*/
MessageDef *received_message_p = NULL;
itti_receive_msg(TASK_GTPV1_U, &received_message_p);
DevAssert(received_message_p != NULL);
switch (ITTI_MSG_ID(received_message_p)) {
case TERMINATE_MESSAGE: {
itti_exit_task();
}
break;
// DATA COMING FROM UDP
case UDP_DATA_IND: {
udp_data_ind_t *udp_data_ind_p;
udp_data_ind_p = &received_message_p->ittiMsg.udp_data_ind;
nwGtpv1uProcessUdpReq(gtpv1u_sgw_data.gtpv1u_stack,
udp_data_ind_p->buffer,
udp_data_ind_p->buffer_length,
udp_data_ind_p->peer_port,
udp_data_ind_p->peer_address);
//itti_free(ITTI_MSG_ORIGIN_ID(received_message_p), udp_data_ind_p->buffer);
}
break;
case TIMER_HAS_EXPIRED:
nwGtpv1uProcessTimeout(&received_message_p->ittiMsg.timer_has_expired.arg);
break;
default: {
GTPU_ERROR("Unkwnon message ID %d:%s\n",
ITTI_MSG_ID(received_message_p),
ITTI_MSG_NAME(received_message_p));
}
break;
}
itti_free(ITTI_MSG_ORIGIN_ID(received_message_p), received_message_p);
received_message_p = NULL;
}
return NULL;
}
static
void s1ap_eNB_handle_sctp_data_ind(sctp_data_ind_t *sctp_data_ind)
{
int result;
DevAssert(sctp_data_ind != NULL);
#if defined(TEST_S1C_MME)
mme_test_s1_notify_sctp_data_ind(sctp_data_ind->assoc_id, sctp_data_ind->stream,
sctp_data_ind->buffer, sctp_data_ind->buffer_length);
#else
s1ap_eNB_handle_message(sctp_data_ind->assoc_id, sctp_data_ind->stream,
sctp_data_ind->buffer, sctp_data_ind->buffer_length);
#endif
result = itti_free(TASK_UNKNOWN, sctp_data_ind->buffer);
AssertFatal (result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result);
}
int s11_sgw_handle_create_session_request(NwGtpv2cStackHandleT *stack_p,
NwGtpv2cUlpApiT *pUlpApi)
{
NwRcT rc = NW_OK;
NwU8T offendingIeType, offendingIeInstance;
NwU16T offendingIeLength;
SgwCreateSessionRequest *create_session_request_p;
MessageDef *message_p;
NwGtpv2cMsgParserT *pMsgParser;
DevAssert(stack_p != NULL);
message_p = itti_alloc_new_message(TASK_S11, SGW_CREATE_SESSION_REQUEST);
create_session_request_p = &message_p->ittiMsg.sgwCreateSessionRequest;
/* Create a new message parser */
rc = nwGtpv2cMsgParserNew(*stack_p, NW_GTP_CREATE_SESSION_REQ,
s11_ie_indication_generic,
NULL, &pMsgParser);
DevAssert(NW_OK == rc);
/* Imsi IE */
rc = nwGtpv2cMsgParserAddIe(pMsgParser, NW_GTPV2C_IE_IMSI,
NW_GTPV2C_IE_INSTANCE_ZERO,
NW_GTPV2C_IE_PRESENCE_CONDITIONAL,
s11_imsi_ie_get,
&create_session_request_p->imsi);
DevAssert(NW_OK == rc);
/* MSISDN IE */
rc = nwGtpv2cMsgParserAddIe(pMsgParser, NW_GTPV2C_IE_MSISDN,
NW_GTPV2C_IE_INSTANCE_ZERO,
NW_GTPV2C_IE_PRESENCE_CONDITIONAL,
s11_msisdn_ie_get,
&create_session_request_p->msisdn);
DevAssert(NW_OK == rc);
/* MEI IE */
rc = nwGtpv2cMsgParserAddIe(pMsgParser, NW_GTPV2C_IE_MEI,
NW_GTPV2C_IE_INSTANCE_ZERO,
NW_GTPV2C_IE_PRESENCE_CONDITIONAL,
s11_mei_ie_get,
&create_session_request_p->mei);
DevAssert(NW_OK == rc);
/* ULI IE */
rc = nwGtpv2cMsgParserAddIe(pMsgParser, NW_GTPV2C_IE_ULI,
NW_GTPV2C_IE_INSTANCE_ZERO,
NW_GTPV2C_IE_PRESENCE_CONDITIONAL,
s11_uli_ie_get,
&create_session_request_p->uli);
DevAssert(NW_OK == rc);
/* Serving Network IE */
rc = nwGtpv2cMsgParserAddIe(pMsgParser, NW_GTPV2C_IE_SERVING_NETWORK,
NW_GTPV2C_IE_INSTANCE_ZERO,
NW_GTPV2C_IE_PRESENCE_CONDITIONAL,
s11_serving_network_ie_get,
&create_session_request_p->serving_network);
DevAssert(NW_OK == rc);
/* RAT Type IE */
rc = nwGtpv2cMsgParserAddIe(pMsgParser, NW_GTPV2C_IE_RAT_TYPE,
NW_GTPV2C_IE_INSTANCE_ZERO,
NW_GTPV2C_IE_PRESENCE_MANDATORY,
s11_rat_type_ie_get,
&create_session_request_p->rat_type);
DevAssert(NW_OK == rc);
/* Indication Flags IE */
rc = nwGtpv2cMsgParserAddIe(pMsgParser, NW_GTPV2C_IE_INDICATION,
NW_GTPV2C_IE_INSTANCE_ZERO,
NW_GTPV2C_IE_PRESENCE_CONDITIONAL,
s11_indication_flags_ie_get,
&create_session_request_p->indication_flags);
DevAssert(NW_OK == rc);
/* APN IE */
rc = nwGtpv2cMsgParserAddIe(pMsgParser, NW_GTPV2C_IE_APN,
NW_GTPV2C_IE_INSTANCE_ZERO,
NW_GTPV2C_IE_PRESENCE_MANDATORY,
s11_apn_ie_get, &create_session_request_p->apn);
DevAssert(NW_OK == rc);
/* Selection Mode IE */
rc = nwGtpv2cMsgParserAddIe(pMsgParser, NW_GTPV2C_IE_SELECTION_MODE,
NW_GTPV2C_IE_INSTANCE_ZERO,
NW_GTPV2C_IE_PRESENCE_CONDITIONAL,
s11_ie_indication_generic, NULL);
DevAssert(NW_OK == rc);
/* PDN Type IE */
rc = nwGtpv2cMsgParserAddIe(pMsgParser, NW_GTPV2C_IE_PDN_TYPE,
NW_GTPV2C_IE_INSTANCE_ZERO,
NW_GTPV2C_IE_PRESENCE_CONDITIONAL,
s11_pdn_type_ie_get, &create_session_request_p->pdn_type);
DevAssert(NW_OK == rc);
/* PAA IE */
rc = nwGtpv2cMsgParserAddIe(pMsgParser, NW_GTPV2C_IE_PAA,
NW_GTPV2C_IE_INSTANCE_ZERO,
NW_GTPV2C_IE_PRESENCE_CONDITIONAL,
s11_paa_ie_get, &create_session_request_p->paa);
DevAssert(NW_OK == rc);
/* Sender FTEID for CP IE */
rc = nwGtpv2cMsgParserAddIe(pMsgParser, NW_GTPV2C_IE_FTEID,
NW_GTPV2C_IE_INSTANCE_ZERO,
NW_GTPV2C_IE_PRESENCE_MANDATORY,
s11_fteid_ie_get,
&create_session_request_p->sender_fteid_for_cp);
DevAssert(NW_OK == rc);
/* PGW FTEID for CP IE */
rc = nwGtpv2cMsgParserAddIe(pMsgParser, NW_GTPV2C_IE_FTEID,
NW_GTPV2C_IE_INSTANCE_ONE,
NW_GTPV2C_IE_PRESENCE_CONDITIONAL,
s11_fteid_ie_get,
&create_session_request_p->pgw_address_for_cp);
DevAssert(NW_OK == rc);
/* APN Restriction IE */
rc = nwGtpv2cMsgParserAddIe(pMsgParser, NW_GTPV2C_IE_APN_RESTRICTION,
NW_GTPV2C_IE_INSTANCE_ZERO,
NW_GTPV2C_IE_PRESENCE_CONDITIONAL,
s11_ie_indication_generic, NULL);
DevAssert(NW_OK == rc);
/* Bearer Context IE */
rc = nwGtpv2cMsgParserAddIe(pMsgParser, NW_GTPV2C_IE_BEARER_CONTEXT,
NW_GTPV2C_IE_INSTANCE_ZERO,
NW_GTPV2C_IE_PRESENCE_MANDATORY,
s11_bearer_context_ie_get,
&create_session_request_p->bearer_to_create);
DevAssert(NW_OK == rc);
/* AMBR IE */
rc = nwGtpv2cMsgParserAddIe(pMsgParser, NW_GTPV2C_IE_AMBR,
NW_GTPV2C_IE_INSTANCE_ZERO,
NW_GTPV2C_IE_PRESENCE_CONDITIONAL,
s11_ambr_ie_get,
&create_session_request_p->ambr);
DevAssert(NW_OK == rc);
/* Recovery IE */
rc = nwGtpv2cMsgParserAddIe(pMsgParser, NW_GTPV2C_IE_RECOVERY,
NW_GTPV2C_IE_INSTANCE_ZERO,
NW_GTPV2C_IE_PRESENCE_MANDATORY,
s11_ie_indication_generic, NULL);
DevAssert(NW_OK == rc);
create_session_request_p->teid = nwGtpv2cMsgGetTeid(pUlpApi->hMsg);
create_session_request_p->trxn = (void*)pUlpApi->apiInfo.initialReqIndInfo.hTrxn;
create_session_request_p->peer_ip = pUlpApi->apiInfo.initialReqIndInfo.peerIp;
rc = nwGtpv2cMsgParserRun(pMsgParser,
pUlpApi->hMsg,
&offendingIeType,
&offendingIeInstance,
&offendingIeLength);
if (rc != NW_OK)
{
gtp_cause_t cause;
NwGtpv2cUlpApiT ulp_req;
memset(&ulp_req, 0, sizeof(NwGtpv2cUlpApiT));
memset(&cause , 0, sizeof(gtp_cause_t));
cause.offending_ie_type = offendingIeType;
cause.offending_ie_length = offendingIeLength;
cause.offending_ie_instance = offendingIeInstance;
switch (rc)
{
case NW_GTPV2C_MANDATORY_IE_MISSING:
S11_DEBUG("Mandatory IE type '%u' of instance '%u' missing!\n",
offendingIeType, offendingIeLength);
cause.cause_value = NW_GTPV2C_CAUSE_MANDATORY_IE_MISSING;
break;
default:
S11_DEBUG("Unknown message parse error!\n");
cause.cause_value = 0;
break;
}
/*
* Send Create session response with failure to Gtpv2c Stack Instance
*/
ulp_req.apiType = NW_GTPV2C_ULP_API_TRIGGERED_RSP;
ulp_req.apiInfo.triggeredRspInfo.hTrxn = pUlpApi->apiInfo.initialReqIndInfo.hTrxn;
rc = nwGtpv2cMsgNew(*stack_p,
NW_TRUE,
NW_GTP_CREATE_SESSION_RSP,
0,
nwGtpv2cMsgGetSeqNumber(pUlpApi->hMsg),
&(ulp_req.hMsg));
s11_cause_ie_set(&(ulp_req.hMsg), &cause);
S11_DEBUG("Received NW_GTP_CREATE_SESSION_REQ, Sending NW_GTP_CREATE_SESSION_RSP!\n");
rc = nwGtpv2cProcessUlpReq(*stack_p, &ulp_req);
DevAssert(NW_OK == rc);
itti_free(ITTI_MSG_ORIGIN_ID(message_p), message_p);
message_p = NULL;
rc = nwGtpv2cMsgParserDelete(*stack_p, pMsgParser);
DevAssert(NW_OK == rc);
rc = nwGtpv2cMsgDelete(*stack_p, (pUlpApi->hMsg));
DevAssert(NW_OK == rc);
return 0;
}
rc = nwGtpv2cMsgParserDelete(*stack_p, pMsgParser);
DevAssert(NW_OK == rc);
rc = nwGtpv2cMsgDelete(*stack_p, (pUlpApi->hMsg));
DevAssert(NW_OK == rc);
return itti_send_msg_to_task(TASK_SPGW_APP, INSTANCE_DEFAULT, message_p);
}
int s11_sgw_handle_delete_session_request(NwGtpv2cStackHandleT *stack_p,
NwGtpv2cUlpApiT *pUlpApi)
{
NwRcT rc = NW_OK;
NwU8T offendingIeType, offendingIeInstance;
NwU16T offendingIeLength;
SgwDeleteSessionRequest *delete_session_request_p;
MessageDef *message_p;
NwGtpv2cMsgParserT *pMsgParser;
DevAssert(stack_p != NULL);
message_p = itti_alloc_new_message(TASK_S11, SGW_DELETE_SESSION_REQUEST);
delete_session_request_p = &message_p->ittiMsg.sgwDeleteSessionRequest;
/* Create a new message parser */
rc = nwGtpv2cMsgParserNew(*stack_p, NW_GTP_DELETE_SESSION_REQ,
s11_ie_indication_generic,
NULL, &pMsgParser);
DevAssert(NW_OK == rc);
/* MME FTEID for CP IE */
rc = nwGtpv2cMsgParserAddIe(pMsgParser, NW_GTPV2C_IE_FTEID,
NW_GTPV2C_IE_INSTANCE_ZERO,
NW_GTPV2C_IE_PRESENCE_OPTIONAL,
s11_fteid_ie_get,
&delete_session_request_p->sender_fteid_for_cp);
DevAssert(NW_OK == rc);
/* Linked EPS Bearer Id IE
* This information element shall not be present for TAU/RAU/Handover with
* S-GW relocation procedures.
*/
rc = nwGtpv2cMsgParserAddIe(pMsgParser, NW_GTPV2C_IE_EBI,
NW_GTPV2C_IE_INSTANCE_ZERO,
NW_GTPV2C_IE_PRESENCE_OPTIONAL,
s11_ebi_ie_get,
&delete_session_request_p->lbi);
DevAssert(NW_OK == rc);
/* Indication Flags IE
* For a Delete Session Request on S11 interface,
* only the Operation Indication flag might be present.
*/
rc = nwGtpv2cMsgParserAddIe(pMsgParser, NW_GTPV2C_IE_INDICATION,
NW_GTPV2C_IE_INSTANCE_ZERO,
NW_GTPV2C_IE_PRESENCE_CONDITIONAL,
s11_indication_flags_ie_get,
&delete_session_request_p->indication_flags);
DevAssert(NW_OK == rc);
delete_session_request_p->teid = nwGtpv2cMsgGetTeid(pUlpApi->hMsg);
delete_session_request_p->trxn = (void*)pUlpApi->apiInfo.initialReqIndInfo.hTrxn;
delete_session_request_p->peer_ip = pUlpApi->apiInfo.initialReqIndInfo.peerIp;
rc = nwGtpv2cMsgParserRun(pMsgParser,
pUlpApi->hMsg,
&offendingIeType,
&offendingIeInstance,
&offendingIeLength);
if (rc != NW_OK) {
NwGtpv2cUlpApiT ulp_req;
gtp_cause_t cause;
memset(&ulp_req, 0, sizeof(NwGtpv2cUlpApiT));
memset(&cause , 0, sizeof(gtp_cause_t));
cause.offending_ie_type = offendingIeType;
cause.offending_ie_length = offendingIeLength;
cause.offending_ie_instance = offendingIeInstance;
switch (rc)
{
case NW_GTPV2C_MANDATORY_IE_MISSING:
S11_DEBUG("Mandatory IE type '%u' of instance '%u' missing!\n",
offendingIeType, offendingIeLength);
cause.cause_value = NW_GTPV2C_CAUSE_MANDATORY_IE_MISSING;
break;
default:
S11_DEBUG("Unknown message parse error!\n");
cause.cause_value = 0;
break;
}
/*
* Send Create session response with failure to Gtpv2c Stack Instance
*/
ulp_req.apiType = NW_GTPV2C_ULP_API_TRIGGERED_RSP;
ulp_req.apiInfo.triggeredRspInfo.hTrxn = pUlpApi->apiInfo.initialReqIndInfo.hTrxn;
rc = nwGtpv2cMsgNew(*stack_p,
NW_TRUE,
NW_GTP_DELETE_SESSION_RSP,
0,
nwGtpv2cMsgGetSeqNumber(pUlpApi->hMsg),
&(ulp_req.hMsg));
/* Adding the cause */
s11_cause_ie_set(&(ulp_req.hMsg), &cause);
S11_DEBUG("Received NW_GTP_DELETE_SESSION_REQ, Sending NW_GTP_DELETE_SESSION_RSP!\n");
rc = nwGtpv2cProcessUlpReq(*stack_p, &ulp_req);
DevAssert(NW_OK == rc);
itti_free(ITTI_MSG_ORIGIN_ID(message_p), message_p);
message_p = NULL;
rc = nwGtpv2cMsgParserDelete(*stack_p, pMsgParser);
DevAssert(NW_OK == rc);
rc = nwGtpv2cMsgDelete(*stack_p, (pUlpApi->hMsg));
DevAssert(NW_OK == rc);
return 0;
}
rc = nwGtpv2cMsgParserDelete(*stack_p, pMsgParser);
DevAssert(NW_OK == rc);
rc = nwGtpv2cMsgDelete(*stack_p, (pUlpApi->hMsg));
DevAssert(NW_OK == rc);
return itti_send_msg_to_task(TASK_SPGW_APP, INSTANCE_DEFAULT, message_p);
}
void *s1ap_eNB_task(void *arg)
{
MessageDef *received_msg = NULL;
int result;
S1AP_DEBUG("Starting S1AP layer\n");
s1ap_eNB_prepare_internal_data();
itti_mark_task_ready(TASK_S1AP);
MSC_START_USE();
while (1) {
itti_receive_msg(TASK_S1AP, &received_msg);
switch (ITTI_MSG_ID(received_msg)) {
case TERMINATE_MESSAGE:
itti_exit_task();
break;
case S1AP_REGISTER_ENB_REQ: {
/* Register a new eNB.
* in Virtual mode eNBs will be distinguished using the mod_id/
* Each eNB has to send an S1AP_REGISTER_ENB message with its
* own parameters.
*/
s1ap_eNB_handle_register_eNB(ITTI_MESSAGE_GET_INSTANCE(received_msg),
&S1AP_REGISTER_ENB_REQ(received_msg));
}
break;
case SCTP_NEW_ASSOCIATION_RESP: {
s1ap_eNB_handle_sctp_association_resp(ITTI_MESSAGE_GET_INSTANCE(received_msg),
&received_msg->ittiMsg.sctp_new_association_resp);
}
break;
case SCTP_DATA_IND: {
s1ap_eNB_handle_sctp_data_ind(&received_msg->ittiMsg.sctp_data_ind);
}
break;
case S1AP_NAS_FIRST_REQ: {
s1ap_eNB_handle_nas_first_req(ITTI_MESSAGE_GET_INSTANCE(received_msg),
&S1AP_NAS_FIRST_REQ(received_msg));
}
break;
case S1AP_UPLINK_NAS: {
s1ap_eNB_nas_uplink(ITTI_MESSAGE_GET_INSTANCE(received_msg),
&S1AP_UPLINK_NAS(received_msg));
}
break;
case S1AP_UE_CAPABILITIES_IND: {
s1ap_eNB_ue_capabilities(ITTI_MESSAGE_GET_INSTANCE(received_msg),
&S1AP_UE_CAPABILITIES_IND(received_msg));
}
break;
case S1AP_INITIAL_CONTEXT_SETUP_RESP: {
s1ap_eNB_initial_ctxt_resp(ITTI_MESSAGE_GET_INSTANCE(received_msg),
&S1AP_INITIAL_CONTEXT_SETUP_RESP(received_msg));
}
break;
case S1AP_E_RAB_SETUP_RESP: {
s1ap_eNB_e_rab_setup_resp(ITTI_MESSAGE_GET_INSTANCE(received_msg),
&S1AP_E_RAB_SETUP_RESP(received_msg));
}
break;
case S1AP_NAS_NON_DELIVERY_IND: {
s1ap_eNB_nas_non_delivery_ind(ITTI_MESSAGE_GET_INSTANCE(received_msg),
&S1AP_NAS_NON_DELIVERY_IND(received_msg));
}
break;
case S1AP_UE_CONTEXT_RELEASE_COMPLETE: {
s1ap_ue_context_release_complete(ITTI_MESSAGE_GET_INSTANCE(received_msg),
&S1AP_UE_CONTEXT_RELEASE_COMPLETE(received_msg));
}
break;
case S1AP_UE_CONTEXT_RELEASE_REQ: {
s1ap_eNB_instance_t *s1ap_eNB_instance_p = NULL; // test
struct s1ap_eNB_ue_context_s *ue_context_p = NULL; // test
s1ap_ue_context_release_req(ITTI_MESSAGE_GET_INSTANCE(received_msg),
&S1AP_UE_CONTEXT_RELEASE_REQ(received_msg));
s1ap_eNB_instance_p = s1ap_eNB_get_instance(ITTI_MESSAGE_GET_INSTANCE(received_msg)); // test
DevAssert(s1ap_eNB_instance_p != NULL); // test
if ((ue_context_p = s1ap_eNB_get_ue_context(s1ap_eNB_instance_p,
S1AP_UE_CONTEXT_RELEASE_REQ(received_msg).eNB_ue_s1ap_id)) == NULL) { // test
/* The context for this eNB ue s1ap id doesn't exist in the map of eNB UEs */
S1AP_ERROR("Failed to find ue context associated with eNB ue s1ap id: %u\n",
S1AP_UE_CONTEXT_RELEASE_REQ(received_msg).eNB_ue_s1ap_id); // test
} // test
}
break;
default:
S1AP_ERROR("Received unhandled message: %d:%s\n",
ITTI_MSG_ID(received_msg), ITTI_MSG_NAME(received_msg));
break;
}
result = itti_free (ITTI_MSG_ORIGIN_ID(received_msg), received_msg);
AssertFatal (result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result);
received_msg = NULL;
}
return NULL;
}
/* Callback called when a gtpv1u message arrived on UDP interface */
NwGtpv1uRcT gtpv1u_process_stack_req(
NwGtpv1uUlpHandleT hUlp,
NwGtpv1uUlpApiT *pUlpApi)
{
switch(pUlpApi->apiType) {
/* Here there are two type of messages handled:
* - T-PDU
* - END-MARKER
*/
case NW_GTPV1U_ULP_API_RECV_TPDU: {
//uint8_t buffer[4096];
//uint32_t buffer_len;
MessageDef *message_p = NULL;
Gtpv1uTunnelDataInd *data_ind_p = NULL;
/* Nw-gptv1u stack has processed a PDU. we can forward it to IPV4
* task for transmission.
*/
/*if (NW_GTPV1U_OK != nwGtpv1uMsgGetTpdu(pUlpApi->apiInfo.recvMsgInfo.hMsg,
buffer, (uint32_t *)&buffer_len)) {
GTPU_ERROR("Error while retrieving T-PDU\n");
}*/
GTPU_DEBUG("Received TPDU from gtpv1u stack %u with size %d\n",
pUlpApi->apiInfo.recvMsgInfo.teid,
((NwGtpv1uMsgT*)pUlpApi->apiInfo.recvMsgInfo.hMsg)->msgBufLen);
message_p = itti_alloc_new_message(TASK_GTPV1_U, GTPV1U_TUNNEL_DATA_IND);
if (message_p == NULL) {
return -1;
}
data_ind_p = &message_p->ittiMsg.gtpv1uTunnelDataInd;
data_ind_p->buffer = ((NwGtpv1uMsgT*)pUlpApi->apiInfo.recvMsgInfo.hMsg)->msgBuf;
data_ind_p->length = ((NwGtpv1uMsgT*)pUlpApi->apiInfo.recvMsgInfo.hMsg)->msgBufLen;
data_ind_p->offset = ((NwGtpv1uMsgT*)pUlpApi->apiInfo.recvMsgInfo.hMsg)->msgBufOffset;
data_ind_p->local_S1u_teid = pUlpApi->apiInfo.recvMsgInfo.teid;
if (data_ind_p->buffer == NULL) {
GTPU_ERROR("Failed to allocate new buffer\n");
itti_free(ITTI_MSG_ORIGIN_ID(message_p), message_p);
message_p = NULL;
} else {
//memcpy(data_ind_p->buffer, buffer, buffer_len);
//data_ind_p->length = buffer_len;
if (itti_send_msg_to_task(TASK_FW_IP, INSTANCE_DEFAULT, message_p) < 0) {
GTPU_ERROR("Failed to send message to task\n");
itti_free(ITTI_MSG_ORIGIN_ID(message_p), message_p);
message_p = NULL;
}
}
}
break;
case NW_GTPV1U_ULP_API_CREATE_TUNNEL_ENDPOINT: {
}
break;
default: {
GTPU_ERROR("Received undefined UlpApi (%02x) from gtpv1u stack!\n",
pUlpApi->apiType);
}
}
return NW_GTPV1U_OK;
}
static void *nas_intertask_interface(void *args_p)
{
itti_mark_task_ready(TASK_NAS_MME);
MSC_START_USE();
while(1) {
MessageDef *received_message_p;
next_message:
itti_receive_msg(TASK_NAS_MME, &received_message_p);
switch (ITTI_MSG_ID(received_message_p)) {
case NAS_CONNECTION_ESTABLISHMENT_IND: {
#if defined(DISABLE_USE_NAS)
MessageDef *message_p;
nas_attach_req_t *nas_req_p;
s1ap_initial_ue_message_t *transparent;
NAS_DEBUG("NAS abstraction: Generating NAS ATTACH REQ\n");
message_p = itti_alloc_new_message(TASK_NAS_MME, NAS_ATTACH_REQ);
nas_req_p = &message_p->ittiMsg.nas_attach_req;
transparent = &message_p->ittiMsg.nas_attach_req.transparent;
nas_req_p->initial = INITIAL_REQUEST;
sprintf(nas_req_p->imsi, "%14llu", 20834123456789ULL);
memcpy(transparent, &received_message_p->ittiMsg.nas_conn_est_ind.transparent,
sizeof(s1ap_initial_ue_message_t));
itti_send_msg_to_task(TASK_MME_APP, INSTANCE_DEFAULT, message_p);
#else
nas_establish_ind_t *nas_est_ind_p;
nas_est_ind_p = &received_message_p->ittiMsg.nas_conn_est_ind.nas;
nas_proc_establish_ind(nas_est_ind_p->UEid,
nas_est_ind_p->tac,
nas_est_ind_p->initialNasMsg.data,
nas_est_ind_p->initialNasMsg.length);
#endif
}
break;
#if defined(DISABLE_USE_NAS)
case NAS_ATTACH_ACCEPT: {
itti_send_msg_to_task(TASK_S1AP, INSTANCE_DEFAULT, received_message_p);
goto next_message;
}
break;
case NAS_AUTHENTICATION_REQ: {
MessageDef *message_p;
nas_auth_resp_t *nas_resp_p;
NAS_DEBUG("NAS abstraction: Generating NAS AUTHENTICATION RESPONSE\n");
message_p = itti_alloc_new_message(TASK_NAS_MME, NAS_AUTHENTICATION_RESP);
nas_resp_p = &message_p->ittiMsg.nas_auth_resp;
memcpy(nas_resp_p->imsi, received_message_p->ittiMsg.nas_auth_req.imsi, 16);
itti_send_msg_to_task(TASK_MME_APP, INSTANCE_DEFAULT, message_p);
}
break;
#else
case NAS_UPLINK_DATA_IND: {
nas_proc_ul_transfer_ind(NAS_UL_DATA_IND(received_message_p).UEid,
NAS_UL_DATA_IND(received_message_p).nasMsg.data,
NAS_UL_DATA_IND(received_message_p).nasMsg.length);
}
break;
case NAS_DOWNLINK_DATA_CNF: {
nas_proc_dl_transfer_cnf(NAS_DL_DATA_CNF(received_message_p).UEid);
} break;
case NAS_DOWNLINK_DATA_REJ: {
nas_proc_dl_transfer_rej(NAS_DL_DATA_REJ(received_message_p).UEid);
} break;
case NAS_AUTHENTICATION_PARAM_RSP: {
nas_proc_auth_param_res(&NAS_AUTHENTICATION_PARAM_RSP(received_message_p));
}
break;
case NAS_AUTHENTICATION_PARAM_FAIL: {
nas_proc_auth_param_fail(&NAS_AUTHENTICATION_PARAM_FAIL(received_message_p));
}
break;
#endif
case NAS_PDN_CONNECTIVITY_RSP: {
nas_proc_pdn_connectivity_res(&NAS_PDN_CONNECTIVITY_RSP(received_message_p));
}
break;
case NAS_PDN_CONNECTIVITY_FAIL: {
nas_proc_pdn_connectivity_fail(&NAS_PDN_CONNECTIVITY_FAIL(received_message_p));
}
break;
case TIMER_HAS_EXPIRED: {
#if !defined(DISABLE_USE_NAS)
/* Call the NAS timer api */
nas_timer_handle_signal_expiry(TIMER_HAS_EXPIRED(received_message_p).timer_id,
TIMER_HAS_EXPIRED(received_message_p).arg);
#endif
}
break;
case S1AP_ENB_DEREGISTERED_IND: {
#if !defined(DISABLE_USE_NAS)
int i;
for (i = 0; i < S1AP_ENB_DEREGISTERED_IND(received_message_p).nb_ue_to_deregister; i ++) {
nas_proc_deregister_ue(S1AP_ENB_DEREGISTERED_IND(received_message_p).mme_ue_s1ap_id[i]);
}
#endif
}
break;
case S1AP_DEREGISTER_UE_REQ: {
#if !defined(DISABLE_USE_NAS)
nas_proc_deregister_ue(S1AP_DEREGISTER_UE_REQ(received_message_p).mme_ue_s1ap_id);
#endif
}
break;
case TERMINATE_MESSAGE: {
itti_exit_task();
}
break;
default: {
NAS_DEBUG("Unkwnon message ID %d:%s from %s\n",
ITTI_MSG_ID(received_message_p),
ITTI_MSG_NAME(received_message_p),
ITTI_MSG_ORIGIN_NAME(received_message_p));
}
break;
}
itti_free(ITTI_MSG_ORIGIN_ID(received_message_p), received_message_p);
received_message_p = NULL;
}
return NULL;
}
//-----------------------------------------------------------------------------
void *gtpv1u_eNB_task(void *args)
{
int rc = 0;
instance_t instance;
//const char *msg_name_p;
rc = gtpv1u_eNB_init();
AssertFatal(rc == 0, "gtpv1u_eNB_init Failed");
itti_mark_task_ready(TASK_GTPV1_U);
MSC_START_USE();
while(1) {
/* Trying to fetch a message from the message queue.
* If the queue is empty, this function will block till a
* message is sent to the task.
*/
MessageDef *received_message_p = NULL;
itti_receive_msg(TASK_GTPV1_U, &received_message_p);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_GTPV1U_ENB_TASK, VCD_FUNCTION_IN);
DevAssert(received_message_p != NULL);
instance = ITTI_MSG_INSTANCE(received_message_p);
//msg_name_p = ITTI_MSG_NAME(received_message_p);
switch (ITTI_MSG_ID(received_message_p)) {
case GTPV1U_ENB_DELETE_TUNNEL_REQ: {
gtpv1u_delete_s1u_tunnel(instance, &received_message_p->ittiMsg.Gtpv1uDeleteTunnelReq);
}
break;
// DATA COMING FROM UDP
case UDP_DATA_IND: {
udp_data_ind_t *udp_data_ind_p;
udp_data_ind_p = &received_message_p->ittiMsg.udp_data_ind;
nwGtpv1uProcessUdpReq(gtpv1u_data_g.gtpv1u_stack,
udp_data_ind_p->buffer,
udp_data_ind_p->buffer_length,
udp_data_ind_p->peer_port,
udp_data_ind_p->peer_address);
//itti_free(ITTI_MSG_ORIGIN_ID(received_message_p), udp_data_ind_p->buffer);
}
break;
// DATA TO BE SENT TO UDP
case GTPV1U_ENB_TUNNEL_DATA_REQ: {
gtpv1u_enb_tunnel_data_req_t *data_req_p = NULL;
NwGtpv1uUlpApiT stack_req;
NwGtpv1uRcT rc = NW_GTPV1U_FAILURE;
hashtable_rc_t hash_rc = HASH_TABLE_KEY_NOT_EXISTS;
gtpv1u_ue_data_t *gtpv1u_ue_data_p = NULL;
teid_t enb_s1u_teid = 0;
teid_t sgw_s1u_teid = 0;
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_GTPV1U_PROCESS_TUNNEL_DATA_REQ, VCD_FUNCTION_IN);
data_req_p = >PV1U_ENB_TUNNEL_DATA_REQ(received_message_p);
//ipv4_send_data(ipv4_data_p->sd, data_ind_p->buffer, data_ind_p->length);
#if defined(GTP_DUMP_SOCKET) && GTP_DUMP_SOCKET > 0
gtpv1u_eNB_write_dump_socket(&data_req_p->buffer[data_req_p->offset],data_req_p->length);
#endif
memset(&stack_req, 0, sizeof(NwGtpv1uUlpApiT));
hash_rc = hashtable_get(gtpv1u_data_g.ue_mapping, (uint64_t)data_req_p->rnti, (void**)>pv1u_ue_data_p);
if (hash_rc == HASH_TABLE_KEY_NOT_EXISTS) {
LOG_E(GTPU, "nwGtpv1uProcessUlpReq failed: while getting ue rnti %x in hashtable ue_mapping\n", data_req_p->rnti);
} else {
if ((data_req_p->rab_id >= GTPV1U_BEARER_OFFSET) && (data_req_p->rab_id <= max_val_DRB_Identity)) {
enb_s1u_teid = gtpv1u_ue_data_p->bearers[data_req_p->rab_id - GTPV1U_BEARER_OFFSET].teid_eNB;
sgw_s1u_teid = gtpv1u_ue_data_p->bearers[data_req_p->rab_id - GTPV1U_BEARER_OFFSET].teid_sgw;
stack_req.apiType = NW_GTPV1U_ULP_API_SEND_TPDU;
stack_req.apiInfo.sendtoInfo.teid = sgw_s1u_teid;
stack_req.apiInfo.sendtoInfo.ipAddr = gtpv1u_ue_data_p->bearers[data_req_p->rab_id - GTPV1U_BEARER_OFFSET].sgw_ip_addr;
rc = nwGtpv1uGpduMsgNew(
gtpv1u_data_g.gtpv1u_stack,
sgw_s1u_teid,
NW_FALSE,
gtpv1u_data_g.seq_num++,
data_req_p->buffer,
data_req_p->length,
data_req_p->offset,
&(stack_req.apiInfo.sendtoInfo.hMsg));
if (rc != NW_GTPV1U_OK) {
LOG_E(GTPU, "nwGtpv1uGpduMsgNew failed: 0x%x\n", rc);
MSC_LOG_EVENT(MSC_GTPU_ENB,"0 Failed send G-PDU ltid %u rtid %u size %u",
enb_s1u_teid,sgw_s1u_teid,data_req_p->length);
(void)enb_s1u_teid; /* avoid gcc warning "set but not used" */
} else {
rc = nwGtpv1uProcessUlpReq(gtpv1u_data_g.gtpv1u_stack, &stack_req);
if (rc != NW_GTPV1U_OK) {
LOG_E(GTPU, "nwGtpv1uProcessUlpReq failed: 0x%x\n", rc);
MSC_LOG_EVENT(MSC_GTPU_ENB,"0 Failed send G-PDU ltid %u rtid %u size %u",
enb_s1u_teid,sgw_s1u_teid,data_req_p->length);
} else {
MSC_LOG_TX_MESSAGE(
MSC_GTPU_ENB,
MSC_GTPU_SGW,
NULL,
0,
MSC_AS_TIME_FMT" G-PDU ltid %u rtid %u size %u",
0,0,
enb_s1u_teid,
sgw_s1u_teid,
data_req_p->length);
}
rc = nwGtpv1uMsgDelete(gtpv1u_data_g.gtpv1u_stack,
stack_req.apiInfo.sendtoInfo.hMsg);
if (rc != NW_GTPV1U_OK) {
LOG_E(GTPU, "nwGtpv1uMsgDelete failed: 0x%x\n", rc);
}
}
}
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_GTPV1U_PROCESS_TUNNEL_DATA_REQ, VCD_FUNCTION_OUT);
/* Buffer still needed, do not free it */
//itti_free(ITTI_MSG_ORIGIN_ID(received_message_p), data_req_p->buffer);
}
break;
case TERMINATE_MESSAGE: {
if (gtpv1u_data_g.ue_mapping != NULL) {
hashtable_destroy (gtpv1u_data_g.ue_mapping);
}
if (gtpv1u_data_g.teid_mapping != NULL) {
hashtable_destroy (gtpv1u_data_g.teid_mapping);
}
itti_exit_task();
}
break;
case TIMER_HAS_EXPIRED:
nwGtpv1uProcessTimeout(&received_message_p->ittiMsg.timer_has_expired.arg);
break;
default: {
LOG_E(GTPU, "Unkwnon message ID %d:%s\n",
ITTI_MSG_ID(received_message_p),
ITTI_MSG_NAME(received_message_p));
}
break;
}
rc = itti_free(ITTI_MSG_ORIGIN_ID(received_message_p), received_message_p);
AssertFatal(rc == EXIT_SUCCESS, "Failed to free memory (%d)!\n", rc);
received_message_p = NULL;
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_GTPV1U_ENB_TASK, VCD_FUNCTION_OUT);
}
return NULL;
}
/* Callback called when a gtpv1u message arrived on UDP interface */
NwGtpv1uRcT gtpv1u_eNB_process_stack_req(
NwGtpv1uUlpHandleT hUlp,
NwGtpv1uUlpApiT *pUlpApi)
{
boolean_t result = FALSE;
teid_t teid = 0;
hashtable_rc_t hash_rc = HASH_TABLE_KEY_NOT_EXISTS;
gtpv1u_teid_data_t *gtpv1u_teid_data_p = NULL;
protocol_ctxt_t ctxt;
switch(pUlpApi->apiType) {
/* Here there are two type of messages handled:
* - T-PDU
* - END-MARKER
*/
case NW_GTPV1U_ULP_API_RECV_TPDU: {
uint8_t buffer[4096];
uint32_t buffer_len;
/* Nw-gptv1u stack has processed a PDU. we can schedule it to PDCP
* for transmission.
*/
teid = pUlpApi->apiInfo.recvMsgInfo.teid;
if (NW_GTPV1U_OK != nwGtpv1uMsgGetTpdu(pUlpApi->apiInfo.recvMsgInfo.hMsg,
buffer, &buffer_len)) {
LOG_E(GTPU, "Error while retrieving T-PDU");
}
itti_free(TASK_UDP, ((NwGtpv1uMsgT*)pUlpApi->apiInfo.recvMsgInfo.hMsg)->msgBuf);
#if defined(GTP_DUMP_SOCKET) && GTP_DUMP_SOCKET > 0
gtpv1u_eNB_write_dump_socket(buffer,buffer_len);
#endif
//-----------------------
// GTPV1U->PDCP mapping
//-----------------------
hash_rc = hashtable_get(gtpv1u_data_g.teid_mapping, teid, (void**)>pv1u_teid_data_p);
if (hash_rc == HASH_TABLE_OK) {
#if defined(LOG_GTPU) && LOG_GTPU > 0
LOG_D(GTPU, "Received T-PDU from gtpv1u stack teid %u size %d -> enb module id %u ue module id %u rab id %u\n",
teid,
buffer_len,
gtpv1u_teid_data_p->enb_id,
gtpv1u_teid_data_p->ue_id,
gtpv1u_teid_data_p->eps_bearer_id);
#endif
//#warning "LG eps bearer mapping to DRB id to do (offset -4)"
PROTOCOL_CTXT_SET_BY_MODULE_ID(&ctxt, gtpv1u_teid_data_p->enb_id, ENB_FLAG_YES, gtpv1u_teid_data_p->ue_id, 0, 0,gtpv1u_teid_data_p->enb_id);
MSC_LOG_TX_MESSAGE(
MSC_GTPU_ENB,
MSC_PDCP_ENB,
NULL,0,
MSC_AS_TIME_FMT" DATA-REQ rb %u size %u",
0,0,
(gtpv1u_teid_data_p->eps_bearer_id) ? gtpv1u_teid_data_p->eps_bearer_id - 4: 5-4,
buffer_len);
result = pdcp_data_req(
&ctxt,
SRB_FLAG_NO,
(gtpv1u_teid_data_p->eps_bearer_id) ? gtpv1u_teid_data_p->eps_bearer_id - 4: 5-4,
0, // mui
SDU_CONFIRM_NO, // confirm
buffer_len,
buffer,
PDCP_TRANSMISSION_MODE_DATA);
if ( result == FALSE ) {
if (ctxt.configured == FALSE )
LOG_W(GTPU, "PDCP data request failed, cause: RB is not configured!\n") ;
else
LOG_W(GTPU, "PDCP data request failed\n");
return NW_GTPV1U_FAILURE;
}
} else {
LOG_W(GTPU, "Received T-PDU from gtpv1u stack teid %u unknown size %u", teid, buffer_len);
}
}
break;
default: {
LOG_E(GTPU, "Received undefined UlpApi (%02x) from gtpv1u stack!\n",
pUlpApi->apiType);
}
} // end of switch
return NW_GTPV1U_OK;
}
void eNB_dlsch_ulsch_scheduler(module_id_t module_idP,uint8_t cooperation_flag, frame_t frameP, sub_frame_t subframeP) //, int calibration_flag) {
{
unsigned int nprb[MAX_NUM_CCs];
unsigned int nCCE[MAX_NUM_CCs];
int mbsfn_status[MAX_NUM_CCs];
uint32_t RBalloc[MAX_NUM_CCs];
protocol_ctxt_t ctxt;
#ifdef EXMIMO
int ret;
#endif
#if defined(ENABLE_ITTI)
MessageDef *msg_p;
const char *msg_name;
instance_t instance;
int result;
#endif
DCI_PDU *DCI_pdu[MAX_NUM_CCs];
int CC_id,i,next_i;
UE_list_t *UE_list=&eNB_mac_inst[module_idP].UE_list;
rnti_t rnti;
LOG_D(MAC,"[eNB %d] Frame %d, Subframe %d, entering MAC scheduler (UE_list->head %d)\n",module_idP, frameP, subframeP,UE_list->head);
start_meas(&eNB_mac_inst[module_idP].eNB_scheduler);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_ENB_DLSCH_ULSCH_SCHEDULER,VCD_FUNCTION_IN);
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
DCI_pdu[CC_id] = &eNB_mac_inst[module_idP].common_channels[CC_id].DCI_pdu;
nCCE[CC_id]=0;
nprb[CC_id]=0;
RBalloc[CC_id]=0;
mbsfn_status[CC_id]=0;
}
// refresh UE list based on UEs dropped by PHY in previous subframe
i = UE_list->head;
while (i>=0) {
rnti = UE_RNTI(module_idP, i);
CC_id = UE_PCCID(module_idP, i);
LOG_D(MAC,"UE %d: rnti %x (%p)\n", i, rnti,
mac_xface->get_eNB_UE_stats(module_idP, CC_id, rnti));
next_i= UE_list->next[i];
if (mac_xface->get_eNB_UE_stats(module_idP, CC_id, rnti)==NULL) {
mac_remove_ue(module_idP, i, frameP, subframeP);
}
i = next_i;
}
#if defined(ENABLE_ITTI)
do {
// Checks if a message has been sent to MAC sub-task
itti_poll_msg (TASK_MAC_ENB, &msg_p);
if (msg_p != NULL) {
msg_name = ITTI_MSG_NAME (msg_p);
instance = ITTI_MSG_INSTANCE (msg_p);
switch (ITTI_MSG_ID(msg_p)) {
case MESSAGE_TEST:
LOG_D(MAC, "Received %s\n", ITTI_MSG_NAME(msg_p));
break;
case RRC_MAC_BCCH_DATA_REQ:
LOG_D(MAC, "Received %s from %s: instance %d, frameP %d, eNB_index %d\n",
msg_name, ITTI_MSG_ORIGIN_NAME(msg_p), instance,
RRC_MAC_BCCH_DATA_REQ (msg_p).frame, RRC_MAC_BCCH_DATA_REQ (msg_p).enb_index);
// TODO process BCCH data req.
break;
case RRC_MAC_CCCH_DATA_REQ:
LOG_D(MAC, "Received %s from %s: instance %d, frameP %d, eNB_index %d\n",
msg_name, ITTI_MSG_ORIGIN_NAME(msg_p), instance,
RRC_MAC_CCCH_DATA_REQ (msg_p).frame, RRC_MAC_CCCH_DATA_REQ (msg_p).enb_index);
// TODO process CCCH data req.
break;
#ifdef Rel10
case RRC_MAC_MCCH_DATA_REQ:
LOG_D(MAC, "Received %s from %s: instance %d, frameP %d, eNB_index %d, mbsfn_sync_area %d\n",
msg_name, ITTI_MSG_ORIGIN_NAME(msg_p), instance,
RRC_MAC_MCCH_DATA_REQ (msg_p).frame, RRC_MAC_MCCH_DATA_REQ (msg_p).enb_index, RRC_MAC_MCCH_DATA_REQ (msg_p).mbsfn_sync_area);
// TODO process MCCH data req.
break;
#endif
default:
LOG_E(MAC, "Received unexpected message %s\n", msg_name);
break;
}
result = itti_free (ITTI_MSG_ORIGIN_ID(msg_p), msg_p);
AssertFatal (result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result);
}
} while(msg_p != NULL);
#endif
// clear DCI and BCCH contents before scheduling
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
DCI_pdu[CC_id]->Num_common_dci = 0;
DCI_pdu[CC_id]->Num_ue_spec_dci = 0;
eNB_mac_inst[module_idP].common_channels[CC_id].bcch_active = 0;
#ifdef Rel10
eNB_mac_inst[module_idP].common_channels[CC_id].mcch_active =0;
#endif
eNB_mac_inst[module_idP].frame = frameP;
eNB_mac_inst[module_idP].subframe = subframeP;
}
//if (subframeP%5 == 0)
//#ifdef EXMIMO
PROTOCOL_CTXT_SET_BY_MODULE_ID(&ctxt, module_idP, ENB_FLAG_YES, NOT_A_RNTI, frameP, 0,module_idP);
pdcp_run(&ctxt);
//#endif
// check HO
rrc_rx_tx(&ctxt,
0, // eNB index, unused in eNB
CC_id);
#ifdef Rel10
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
if (eNB_mac_inst[module_idP].common_channels[CC_id].MBMS_flag >0) {
start_meas(&eNB_mac_inst[module_idP].schedule_mch);
mbsfn_status[CC_id] = schedule_MBMS(module_idP,CC_id,frameP,subframeP);
stop_meas(&eNB_mac_inst[module_idP].schedule_mch);
}
}
#endif
// refresh UE list based on UEs dropped by PHY in previous subframe
/*
i=UE_list->head;
while (i>=0) {
next_i = UE_list->next[i];
LOG_T(MAC,"UE %d : rnti %x, stats %p\n",i,UE_RNTI(module_idP,i),mac_xface->get_eNB_UE_stats(module_idP,0,UE_RNTI(module_idP,i)));
if (mac_xface->get_eNB_UE_stats(module_idP,0,UE_RNTI(module_idP,i))==NULL) {
mac_remove_ue(module_idP,i,frameP);
}
i=next_i;
}
*/
switch (subframeP) {
case 0:
// FDD/TDD Schedule Downlink RA transmissions (RA response, Msg4 Contention resolution)
// Schedule ULSCH for FDD or subframeP 4 (TDD config 0,3,6)
// Schedule Normal DLSCH
schedule_RA(module_idP,frameP,subframeP,2,nprb,nCCE);
if (mac_xface->lte_frame_parms->frame_type == FDD) { //FDD
schedule_ulsch(module_idP,frameP,cooperation_flag,0,4,nCCE);//,calibration_flag);
} else if ((mac_xface->lte_frame_parms->tdd_config == TDD) || //TDD
(mac_xface->lte_frame_parms->tdd_config == 3) ||
(mac_xface->lte_frame_parms->tdd_config == 6)) {
//schedule_ulsch(module_idP,frameP,cooperation_flag,subframeP,4,nCCE);//,calibration_flag);
}
// schedule_ue_spec(module_idP,frameP,subframeP,nprb,nCCE,mbsfn_status);
fill_DLSCH_dci(module_idP,frameP,subframeP,RBalloc,1,mbsfn_status);
break;
case 1:
// TDD, schedule UL for subframeP 7 (TDD config 0,1) / subframeP 8 (TDD Config 6)
// FDD, schedule normal UL/DLSCH
if (mac_xface->lte_frame_parms->frame_type == TDD) { // TDD
switch (mac_xface->lte_frame_parms->tdd_config) {
case 0:
case 1:
schedule_ulsch(module_idP,frameP,cooperation_flag,subframeP,7,nCCE);
fill_DLSCH_dci(module_idP,frameP,subframeP,RBalloc,0,mbsfn_status);
break;
case 6:
schedule_ulsch(module_idP,frameP,cooperation_flag,subframeP,8,nCCE);
fill_DLSCH_dci(module_idP,frameP,subframeP,RBalloc,0,mbsfn_status);
break;
default:
break;
}
} else { //FDD
schedule_ue_spec(module_idP,frameP,subframeP,nprb,nCCE,mbsfn_status);
fill_DLSCH_dci(module_idP,frameP,subframeP,RBalloc,0,mbsfn_status);
schedule_ulsch(module_idP,frameP,cooperation_flag,1,5,nCCE);
}
break;
case 2:
// TDD, nothing
// FDD, normal UL/DLSCH
if (mac_xface->lte_frame_parms->frame_type == FDD) { //FDD
schedule_ue_spec(module_idP,frameP,subframeP,nprb,nCCE,mbsfn_status);
fill_DLSCH_dci(module_idP,frameP,subframeP,RBalloc,0,mbsfn_status);
schedule_ulsch(module_idP,frameP,cooperation_flag,2,6,nCCE);
}
break;
case 3:
// TDD Config 2, ULSCH for subframeP 7
// TDD Config 2/5 normal DLSCH
// FDD, normal UL/DLSCH
if (mac_xface->lte_frame_parms->frame_type == TDD) {
switch (mac_xface->lte_frame_parms->tdd_config) {
case 2:
schedule_ulsch(module_idP,frameP,cooperation_flag,subframeP,7,nCCE);
// no break here!
case 5:
schedule_ue_spec(module_idP,frameP,subframeP,nprb,nCCE,mbsfn_status);
fill_DLSCH_dci(module_idP,frameP,subframeP,RBalloc,0,mbsfn_status);
break;
default:
break;
}
} else { //FDD
schedule_ue_spec(module_idP,frameP,subframeP,nprb,nCCE,mbsfn_status);
fill_DLSCH_dci(module_idP,frameP,subframeP,RBalloc,0,mbsfn_status);
schedule_ulsch(module_idP,frameP,cooperation_flag,3,7,nCCE);
}
break;
case 4:
// TDD Config 1, ULSCH for subframeP 8
// TDD Config 1/2/4/5 DLSCH
// FDD UL/DLSCH
if (mac_xface->lte_frame_parms->frame_type == 1) { // TDD
switch (mac_xface->lte_frame_parms->tdd_config) {
case 1:
// schedule_RA(module_idP,frameP,subframeP,nprb,nCCE);
schedule_ulsch(module_idP,frameP,cooperation_flag,subframeP,8,nCCE);
// no break here!
case 2:
// no break here!
case 4:
// no break here!
case 5:
schedule_ue_spec(module_idP,frameP,subframeP,nprb,nCCE,mbsfn_status);
fill_DLSCH_dci(module_idP,frameP,subframeP,RBalloc,1,mbsfn_status);
break;
default:
break;
}
} else {
if (mac_xface->lte_frame_parms->frame_type == FDD) { //FDD
// schedule_RA(module_idP,frameP, subframeP, 0, nprb, nCCE);
// schedule_ulsch(module_idP, frameP, cooperation_flag, 4, 8, nCCE);
schedule_ue_spec(module_idP, frameP, subframeP, nprb, nCCE, mbsfn_status);
fill_DLSCH_dci(module_idP, frameP, subframeP, RBalloc, 1, mbsfn_status);
}
}
break;
case 5:
// TDD/FDD Schedule SI
// TDD Config 0,6 ULSCH for subframes 9,3 resp.
// TDD normal DLSCH
// FDD normal UL/DLSCH
schedule_SI(module_idP,frameP,nprb,nCCE);
//schedule_RA(module_idP,frameP,subframeP,5,nprb,nCCE);
if (mac_xface->lte_frame_parms->frame_type == FDD) {
schedule_RA(module_idP,frameP,subframeP,1,nprb,nCCE);
// schedule_ulsch(module_idP,frameP,cooperation_flag,5,9,nCCE);
fill_DLSCH_dci(module_idP,frameP,subframeP,RBalloc,1,mbsfn_status);
} else if ((mac_xface->lte_frame_parms->tdd_config == 0) || // TDD Config 0
(mac_xface->lte_frame_parms->tdd_config == 6)) { // TDD Config 6
//schedule_ulsch(module_idP,cooperation_flag,subframeP,nCCE);
fill_DLSCH_dci(module_idP,frameP,subframeP,RBalloc,0,mbsfn_status);
} else {
//schedule_ue_spec(module_idP,frameP,subframeP,nprb,nCCE,mbsfn_status);
fill_DLSCH_dci(module_idP,frameP,subframeP,RBalloc,0,mbsfn_status);
}
break;
case 6:
// TDD Config 0,1,6 ULSCH for subframes 2,3
// TDD Config 3,4,5 Normal DLSCH
// FDD normal ULSCH/DLSCH
if (mac_xface->lte_frame_parms->frame_type == TDD) { // TDD
switch (mac_xface->lte_frame_parms->tdd_config) {
case 0:
break;
case 1:
schedule_ulsch(module_idP,frameP,cooperation_flag,subframeP,2,nCCE);
// schedule_ue_spec(module_idP,frameP,subframeP,nprb,nCCE,mbsfn_status);
fill_DLSCH_dci(module_idP,frameP,subframeP,RBalloc,0,mbsfn_status);
break;
case 6:
schedule_ulsch(module_idP,frameP,cooperation_flag,subframeP,3,nCCE);
// schedule_ue_spec(module_idP,frameP,subframeP,nprb,nCCE,mbsfn_status);
fill_DLSCH_dci(module_idP,frameP,subframeP,RBalloc,0,mbsfn_status);
break;
case 5:
schedule_RA(module_idP,frameP,subframeP,2,nprb,nCCE);
schedule_ue_spec(module_idP,frameP,subframeP,nprb,nCCE,mbsfn_status);
fill_DLSCH_dci(module_idP,frameP,subframeP,RBalloc,1,mbsfn_status);
break;
case 3:
case 4:
schedule_ue_spec(module_idP,frameP,subframeP,nprb,nCCE,mbsfn_status);
fill_DLSCH_dci(module_idP,frameP,subframeP,RBalloc,0,mbsfn_status);
break;
default:
break;
}
} else { //FDD
// schedule_ulsch(module_idP,frameP,cooperation_flag,6,0,nCCE);
schedule_ue_spec(module_idP,frameP,subframeP,nprb,nCCE,mbsfn_status);
fill_DLSCH_dci(module_idP,frameP,subframeP,RBalloc,0,mbsfn_status);
}
break;
case 7:
// TDD Config 3,4,5 Normal DLSCH
// FDD Normal UL/DLSCH
if (mac_xface->lte_frame_parms->frame_type == TDD) { // TDD
switch (mac_xface->lte_frame_parms->tdd_config) {
case 3:
case 4:
schedule_RA(module_idP,frameP,subframeP,3,nprb,nCCE); // 3 = Msg3 subframeP, not
schedule_ue_spec(module_idP,frameP,subframeP,nprb,nCCE,mbsfn_status);
fill_DLSCH_dci(module_idP,frameP,subframeP,RBalloc,1,mbsfn_status);
break;
case 5:
schedule_ue_spec(module_idP,frameP,subframeP,nprb,nCCE,mbsfn_status);
fill_DLSCH_dci(module_idP,frameP,subframeP,RBalloc,0,mbsfn_status);
break;
default:
break;
}
} else { //FDD
//schedule_ulsch(module_idP,frameP,cooperation_flag,7,1,nCCE);
schedule_ue_spec(module_idP,frameP,subframeP,nprb,nCCE,mbsfn_status);
fill_DLSCH_dci(module_idP,frameP,subframeP,RBalloc,0,mbsfn_status);
}
break;
case 8:
// TDD Config 2,3,4,5 ULSCH for subframeP 2
//
// FDD Normal UL/DLSCH
if (mac_xface->lte_frame_parms->frame_type == TDD) { // TDD
switch (mac_xface->lte_frame_parms->tdd_config) {
case 2:
case 3:
case 4:
case 5:
// schedule_RA(module_idP,subframeP,nprb,nCCE);
schedule_ulsch(module_idP,frameP,cooperation_flag,subframeP,2,nCCE);
schedule_ue_spec(module_idP,frameP,subframeP,nprb,nCCE,mbsfn_status);
fill_DLSCH_dci(module_idP,frameP,subframeP,RBalloc,0,mbsfn_status);
break;
default:
break;
}
} else { //FDD
//schedule_ulsch(module_idP,frameP,cooperation_flag,8,2,nCCE);
schedule_ue_spec(module_idP,frameP,subframeP,nprb,nCCE,mbsfn_status);
fill_DLSCH_dci(module_idP,frameP,subframeP,RBalloc,0,mbsfn_status);
}
break;
case 9:
// TDD Config 1,3,4,6 ULSCH for subframes 3,3,3,4
if (mac_xface->lte_frame_parms->frame_type == TDD) {
switch (mac_xface->lte_frame_parms->tdd_config) {
case 1:
schedule_ulsch(module_idP,frameP,cooperation_flag,subframeP,3,nCCE);
schedule_RA(module_idP,frameP,subframeP,7,nprb,nCCE); // 7 = Msg3 subframeP, not
schedule_ue_spec(module_idP,frameP,subframeP,nprb,nCCE,mbsfn_status);
fill_DLSCH_dci(module_idP,frameP,subframeP,RBalloc,1,mbsfn_status);
break;
case 3:
case 4:
schedule_ulsch(module_idP,frameP,cooperation_flag,subframeP,3,nCCE);
schedule_ue_spec(module_idP,frameP,subframeP,nprb,nCCE,mbsfn_status);
fill_DLSCH_dci(module_idP,frameP,subframeP,RBalloc,0,mbsfn_status);
break;
case 6:
schedule_ulsch(module_idP,frameP,cooperation_flag,subframeP,4,nCCE);
//schedule_RA(module_idP,frameP,subframeP,nprb,nCCE);
schedule_ue_spec(module_idP,frameP,subframeP,nprb,nCCE,mbsfn_status);
fill_DLSCH_dci(module_idP,frameP,subframeP,RBalloc,0,mbsfn_status);
break;
case 2:
case 5:
//schedule_RA(module_idP,frameP,subframeP,nprb,nCCE);
schedule_ue_spec(module_idP,frameP,subframeP,nprb,nCCE,mbsfn_status);
fill_DLSCH_dci(module_idP,frameP,subframeP,RBalloc,0,mbsfn_status);
break;
default:
break;
}
} else { //FDD
// schedule_ulsch(module_idP,frameP,cooperation_flag,9,3,nCCE);
schedule_ue_spec(module_idP,frameP,subframeP,nprb,nCCE,mbsfn_status);
fill_DLSCH_dci(module_idP,frameP,subframeP,RBalloc,0,mbsfn_status);
}
break;
}
for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) {
DCI_pdu[CC_id]->nCCE = nCCE[CC_id];
}
LOG_D(MAC,"frameP %d, subframeP %d nCCE %d\n",frameP,subframeP,nCCE[0]);
stop_meas(&eNB_mac_inst[module_idP].eNB_scheduler);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_ENB_DLSCH_ULSCH_SCHEDULER,VCD_FUNCTION_OUT);
}
static void *s11_sgw_thread(void *args)
{
itti_mark_task_ready(TASK_S11);
while(1) {
MessageDef *received_message_p = NULL;
itti_receive_msg(TASK_S11, &received_message_p);
assert(received_message_p != NULL);
switch (ITTI_MSG_ID(received_message_p)) {
case UDP_DATA_IND: {
/* We received new data to handle from the UDP layer */
NwRcT rc;
udp_data_ind_t *udp_data_ind;
udp_data_ind = &received_message_p->ittiMsg.udp_data_ind;
S11_DEBUG("Processing new data indication from UDP\n");
rc = nwGtpv2cProcessUdpReq(s11_sgw_stack_handle,
udp_data_ind->buffer,
udp_data_ind->buffer_length,
udp_data_ind->peer_port,
udp_data_ind->peer_address);
DevAssert(rc == NW_OK);
}
break;
case SGW_CREATE_SESSION_RESPONSE: {
S11_DEBUG("Received create session response from S-PGW APP\n");
s11_sgw_handle_create_session_response(
&s11_sgw_stack_handle,
&received_message_p->ittiMsg.sgwCreateSessionResponse);
}
break;
case SGW_MODIFY_BEARER_RESPONSE: {
S11_DEBUG("Received modify bearer response from S-PGW APP\n");
s11_sgw_handle_modify_bearer_response(
&s11_sgw_stack_handle,
&received_message_p->ittiMsg.sgwModifyBearerResponse);
}
break;
case SGW_DELETE_SESSION_RESPONSE: {
S11_DEBUG("Received delete session response from S-PGW APP\n");
s11_sgw_handle_delete_session_response(
&s11_sgw_stack_handle,
&received_message_p->ittiMsg.sgwDeleteSessionResponse);
}
break;
case TIMER_HAS_EXPIRED: {
S11_DEBUG("Processing timeout for timer_id 0x%lx and arg %p\n",
received_message_p->ittiMsg.timer_has_expired.timer_id,
received_message_p->ittiMsg.timer_has_expired.arg);
DevAssert(nwGtpv2cProcessTimeout(received_message_p->ittiMsg.timer_has_expired.arg) == NW_OK);
}
break;
default: {
S11_ERROR("Unkwnon message ID %d:%s\n",
ITTI_MSG_ID(received_message_p), ITTI_MSG_NAME(received_message_p));
}
break;
}
itti_free(ITTI_MSG_ORIGIN_ID(received_message_p), received_message_p);
received_message_p = NULL;
}
return NULL;
}
//------------------------------------------------------------------------------
static void *eNB_app_task(void *args_p)
//------------------------------------------------------------------------------
{
const Enb_properties_array_t *enb_properties_p = NULL;
uint32_t enb_nb = 1; /* Default number of eNB is 1 */
uint32_t enb_id_start = 0;
uint32_t enb_id_end = enb_id_start + enb_nb;
uint32_t register_enb_pending;
uint32_t registered_enb;
long enb_register_retry_timer_id;
MessageDef *msg_p = NULL;
const char *msg_name = NULL;
instance_t instance;
int result;
itti_mark_task_ready (TASK_ENB_APP);
enb_properties_p = enb_config_get();
AssertFatal (enb_nb <= enb_properties_p->number,
"Number of eNB is greater than eNB defined in configuration file (%d/%d)!",
enb_nb, enb_properties_p->number);
/* Try to register each eNB */
registered_enb = 0;
register_enb_pending = eNB_app_register (enb_id_start, enb_id_end, enb_properties_p);
do {
// Wait for a message
itti_receive_msg (TASK_ENB_APP, &msg_p);
msg_name = ITTI_MSG_NAME (msg_p);
instance = ITTI_MSG_INSTANCE (msg_p);
switch (ITTI_MSG_ID(msg_p)) {
case TERMINATE_MESSAGE:
itti_exit_task ();
break;
case MESSAGE_TEST:
LOG_I(ENB_APP, "Received %s\n", ITTI_MSG_NAME(msg_p));
break;
case S1AP_REGISTER_ENB_CNF:
LOG_I(ENB_APP, "[eNB %d] Received %s: associated MME %d\n", instance, msg_name,
S1AP_REGISTER_ENB_CNF(msg_p).nb_mme);
DevAssert(register_enb_pending > 0);
register_enb_pending--;
/* Check if at least eNB is registered with one MME */
if (S1AP_REGISTER_ENB_CNF(msg_p).nb_mme > 0) {
registered_enb++;
}
/* Check if all register eNB requests have been processed */
if (register_enb_pending == 0) {
if (registered_enb == enb_nb) {
mme_test_s1_start_test(instance);
} else {
uint32_t not_associated = enb_nb - registered_enb;
LOG_W(ENB_APP, " %d eNB %s not associated with a MME, retrying registration in %d seconds ...\n",
not_associated, not_associated > 1 ? "are" : "is", ENB_REGISTER_RETRY_DELAY);
/* Restart the eNB registration process in ENB_REGISTER_RETRY_DELAY seconds */
if (timer_setup (ENB_REGISTER_RETRY_DELAY, 0, TASK_ENB_APP, INSTANCE_DEFAULT, TIMER_ONE_SHOT,
NULL, &enb_register_retry_timer_id) < 0) {
LOG_E(ENB_APP, " Can not start eNB register retry timer, use \"sleep\" instead!\n");
sleep(ENB_REGISTER_RETRY_DELAY);
/* Restart the registration process */
registered_enb = 0;
register_enb_pending = eNB_app_register (enb_id_start, enb_id_end, enb_properties_p);
}
}
}
break;
case S1AP_DEREGISTERED_ENB_IND:
LOG_W(ENB_APP, "[eNB %d] Received %s: associated MME %d\n", instance, msg_name,
S1AP_DEREGISTERED_ENB_IND(msg_p).nb_mme);
/* TODO handle recovering of registration */
break;
case TIMER_HAS_EXPIRED:
LOG_I(ENB_APP, " Received %s: timer_id %d\n", msg_name, TIMER_HAS_EXPIRED(msg_p).timer_id);
if (TIMER_HAS_EXPIRED (msg_p).timer_id == enb_register_retry_timer_id) {
/* Restart the registration process */
registered_enb = 0;
register_enb_pending = eNB_app_register (enb_id_start, enb_id_end, enb_properties_p);
}
break;
default:
LOG_E(ENB_APP, "Received unexpected message %s\n", msg_name);
break;
}
result = itti_free (ITTI_MSG_ORIGIN_ID(msg_p), msg_p);
AssertFatal (result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result);
} while (1);
return NULL;
}
void *nas_ue_task(void *args_p) {
int nb_events;
struct epoll_event *events;
MessageDef *msg_p;
const char *msg_name;
instance_t instance;
unsigned int Mod_id;
int result;
itti_mark_task_ready (TASK_NAS_UE);
/* Initialize UE NAS (EURECOM-NAS) */
{
/* Initialize user interface (to exchange AT commands with user process) */
{
if (user_api_initialize (NAS_PARSER_DEFAULT_USER_HOSTNAME, NAS_PARSER_DEFAULT_USER_PORT_NUMBER, NULL,
NULL) != RETURNok) {
LOG_E(NAS, "[UE] user interface initialization failed!");
exit (EXIT_FAILURE);
}
user_fd = user_api_get_fd ();
itti_subscribe_event_fd (TASK_NAS_UE, user_fd);
}
/* Initialize NAS user */
nas_user_initialize (&user_api_emm_callback, &user_api_esm_callback, FIRMWARE_VERSION);
}
/* Set UE activation state */
for (instance = NB_eNB_INST; instance < (NB_eNB_INST + NB_UE_INST); instance++)
{
MessageDef *message_p;
message_p = itti_alloc_new_message(TASK_NAS_UE, DEACTIVATE_MESSAGE);
itti_send_msg_to_task(TASK_L2L1, instance, message_p);
}
while(1) {
// Wait for a message or an event
itti_receive_msg (TASK_NAS_UE, &msg_p);
if (msg_p != NULL) {
msg_name = ITTI_MSG_NAME (msg_p);
instance = ITTI_MSG_INSTANCE (msg_p);
Mod_id = instance - NB_eNB_INST;
switch (ITTI_MSG_ID(msg_p)) {
case INITIALIZE_MESSAGE:
LOG_I(NAS, "[UE %d] Received %s\n", Mod_id, msg_name);
#if (NAS_UE_AUTOSTART != 0)
{
/* Send an activate modem command to NAS like UserProcess should do it */
char *user_data = "at+cfun=1\r";
nas_user_receive_and_process (&user_fd, user_data);
}
#endif
break;
case TERMINATE_MESSAGE:
itti_exit_task ();
break;
case MESSAGE_TEST:
LOG_I(NAS, "[UE %d] Received %s\n", Mod_id, msg_name);
break;
case NAS_CELL_SELECTION_CNF:
LOG_I(NAS, "[UE %d] Received %s: errCode %u, cellID %u, tac %u\n", Mod_id, msg_name,
NAS_CELL_SELECTION_CNF (msg_p).errCode, NAS_CELL_SELECTION_CNF (msg_p).cellID, NAS_CELL_SELECTION_CNF (msg_p).tac);
{
int cell_found = (NAS_CELL_SELECTION_CNF (msg_p).errCode == AS_SUCCESS);
nas_proc_cell_info (cell_found, NAS_CELL_SELECTION_CNF (msg_p).tac,
NAS_CELL_SELECTION_CNF (msg_p).cellID, NAS_CELL_SELECTION_CNF (msg_p).rat,
NAS_CELL_SELECTION_CNF (msg_p).rsrq, NAS_CELL_SELECTION_CNF (msg_p).rsrp);
}
break;
case NAS_CELL_SELECTION_IND:
LOG_I(NAS, "[UE %d] Received %s: cellID %u, tac %u\n", Mod_id, msg_name,
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, msg_name,
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, msg_name,
NAS_CONN_ESTABLI_CNF (msg_p).errCode, NAS_CONN_ESTABLI_CNF (msg_p).nasMsg.length);
if ((NAS_CONN_ESTABLI_CNF (msg_p).errCode == AS_SUCCESS)
|| (NAS_CONN_ESTABLI_CNF (msg_p).errCode == AS_TERMINATED_NAS)) {
nas_proc_establish_cnf(NAS_CONN_ESTABLI_CNF (msg_p).nasMsg.data, NAS_CONN_ESTABLI_CNF (msg_p).nasMsg.length);
/* TODO checks if NAS will free the nas message, better to do it there anyway! */
// result = itti_free (ITTI_MSG_ORIGIN_ID(msg_p), NAS_CONN_ESTABLI_CNF(msg_p).nasMsg.data);
// AssertFatal (result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result);
}
break;
case NAS_CONN_RELEASE_IND:
LOG_I(NAS, "[UE %d] Received %s: cause %u\n", Mod_id, msg_name,
NAS_CONN_RELEASE_IND (msg_p).cause);
nas_proc_release_ind (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, msg_name,
NAS_UPLINK_DATA_CNF (msg_p).UEid, NAS_UPLINK_DATA_CNF (msg_p).errCode);
if (NAS_UPLINK_DATA_CNF (msg_p).errCode == AS_SUCCESS) {
nas_proc_ul_transfer_cnf ();
} else {
nas_proc_ul_transfer_rej ();
}
break;
case NAS_DOWNLINK_DATA_IND:
LOG_I(NAS, "[UE %d] Received %s: UEid %u, length %u\n", Mod_id, msg_name,
NAS_DOWNLINK_DATA_IND (msg_p).UEid, NAS_DOWNLINK_DATA_IND (msg_p).nasMsg.length);
nas_proc_dl_transfer_ind (NAS_DOWNLINK_DATA_IND(msg_p).nasMsg.data, NAS_DOWNLINK_DATA_IND(msg_p).nasMsg.length);
if (0) {
/* TODO checks if NAS will free the nas message, better to do it there anyway! */
result = itti_free (ITTI_MSG_ORIGIN_ID(msg_p), NAS_DOWNLINK_DATA_IND(msg_p).nasMsg.data);
AssertFatal (result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result);
}
break;
default:
LOG_E(NAS, "[UE %d] Received unexpected message %s\n", Mod_id, msg_name);
break;
}
result = itti_free (ITTI_MSG_ORIGIN_ID(msg_p), msg_p);
AssertFatal (result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result);
msg_p = NULL;
}
nb_events = itti_get_events(TASK_NAS_UE, &events);
if ((nb_events > 0) && (events != NULL)) {
if (nas_ue_process_events(events, nb_events) == TRUE) {
LOG_E(NAS, "[UE] Received exit loop\n");
}
}
}
}