static
int
s1ap_mme_compare_plmn (
S1ap_PLMNidentity_t * plmn)
{
int i;
uint16_t mcc;
uint16_t mnc;
uint16_t mnc_len;
DevAssert (plmn != NULL);
TBCD_TO_MCC_MNC (plmn, mcc, mnc, mnc_len);
config_read_lock (&mme_config);
for (i = 0; i < mme_config.gummei.nb_mme_gid; i++) {
S1AP_DEBUG ("Comparing plmn_mcc %d/%d, plmn_mnc %d/%d plmn_mnc_len %d/%d\n", mme_config.gummei.plmn_mcc[i], mcc, mme_config.gummei.plmn_mnc[i], mnc, mme_config.gummei.plmn_mnc_len[i], mnc_len);
if ((mme_config.gummei.plmn_mcc[i] == mcc) && (mme_config.gummei.plmn_mnc[i] == mnc) && (mme_config.gummei.plmn_mnc_len[i] == mnc_len))
/*
* There is a matching plmn
*/
return TA_LIST_AT_LEAST_ONE_MATCH;
}
config_unlock (&mme_config);
return TA_LIST_NO_MATCH;
}
int s1ap_mme_decode_pdu(s1ap_message *message, uint8_t *buffer, uint32_t len) {
S1AP_PDU_t pdu;
S1AP_PDU_t *pdu_p = &pdu;
asn_dec_rval_t dec_ret;
assert(buffer != NULL);
memset((void *)pdu_p, 0, sizeof(S1AP_PDU_t));
dec_ret = aper_decode(NULL,
&asn_DEF_S1AP_PDU,
(void**)&pdu_p,
buffer,
len,
0,
0);
if (dec_ret.code != RC_OK)
return -1;
message->direction = pdu_p->present;
switch(pdu_p->present) {
case S1AP_PDU_PR_initiatingMessage:
return s1ap_mme_decode_initiating(message, &pdu_p->choice.initiatingMessage);
case S1AP_PDU_PR_successfulOutcome:
return s1ap_mme_decode_successfull_outcome(message, &pdu_p->choice.successfulOutcome);
case S1AP_PDU_PR_unsuccessfulOutcome:
return s1ap_mme_decode_unsuccessfull_outcome(message, &pdu_p->choice.unsuccessfulOutcome);
default:
S1AP_DEBUG("Unknown message outcome (%d) or not implemented", (int)pdu_p->present);
break;
}
return -1;
}
static inline
int s1ap_eNB_encode_successfull_outcome(s1ap_message *s1ap_message_p,
uint8_t **buffer, uint32_t *len)
{
int ret = -1;
MessageDef *message_p;
char *message_string = NULL;
size_t message_string_size;
MessagesIds message_id;
DevAssert(s1ap_message_p != NULL);
message_string = calloc(10000, sizeof(char));
s1ap_string_total_size = 0;
message_string_size = strlen(message_string);
switch(s1ap_message_p->procedureCode) {
case S1ap_ProcedureCode_id_InitialContextSetup:
ret = s1ap_eNB_encode_initial_context_setup_response(
&s1ap_message_p->msg.s1ap_InitialContextSetupResponseIEs, buffer, len);
s1ap_xer_print_s1ap_initialcontextsetupresponse(s1ap_xer__print2sp, message_string, s1ap_message_p);
message_id = S1AP_INITIAL_CONTEXT_SETUP_LOG;
message_p = itti_alloc_new_message_sized(TASK_S1AP, message_id, message_string_size + sizeof (IttiMsgText));
message_p->ittiMsg.s1ap_initial_context_setup_log.size = message_string_size;
memcpy(&message_p->ittiMsg.s1ap_initial_context_setup_log.text, message_string, message_string_size);
itti_send_msg_to_task(TASK_UNKNOWN, INSTANCE_DEFAULT, message_p);
free(message_string);
break;
case S1ap_ProcedureCode_id_UEContextRelease:
ret = s1ap_eNB_encode_ue_context_release_complete(
&s1ap_message_p->msg.s1ap_UEContextReleaseCompleteIEs, buffer, len);
s1ap_xer_print_s1ap_uecontextreleasecomplete(s1ap_xer__print2sp, message_string, s1ap_message_p);
message_id = S1AP_UE_CONTEXT_RELEASE_COMPLETE_LOG;
message_p = itti_alloc_new_message_sized(TASK_S1AP, message_id, message_string_size + sizeof (IttiMsgText));
message_p->ittiMsg.s1ap_ue_context_release_complete_log.size = message_string_size;
memcpy(&message_p->ittiMsg.s1ap_ue_context_release_complete_log.text, message_string, message_string_size);
itti_send_msg_to_task(TASK_UNKNOWN, INSTANCE_DEFAULT, message_p);
free(message_string);
break;
default:
S1AP_DEBUG("Unknown procedure ID (%d) for successfull outcome message\n",
(int)s1ap_message_p->procedureCode);
return ret;
break;
}
return ret;
}
static int s1ap_mme_decode_unsuccessfull_outcome(s1ap_message *message, UnsuccessfulOutcome_t *unSuccessfulOutcome_p) {
assert(unSuccessfulOutcome_p != NULL);
message->procedureCode = unSuccessfulOutcome_p->procedureCode;
switch(unSuccessfulOutcome_p->procedureCode) {
case ProcedureCode_id_InitialContextSetup:
return s1ap_decode_initialcontextsetupfailureies(&message->msg.initialContextSetupFailureIEs, &unSuccessfulOutcome_p->value);
default:
S1AP_DEBUG("Unknown procedure ID (%d) for unsuccessfull outcome message", (int)unSuccessfulOutcome_p->procedureCode);
break;
}
return -1;
}
int s1ap_eNB_init(const char *mme_ip_address, const uint8_t eNB_id) {
uint8_t args = eNB_id;
if (sctp_connect_to_remote_host(
mme_ip_address, 36412, &args,
s1ap_sctp_connected_callback,
s1ap_sctp_recv_callback) < 0)
{
S1AP_ERROR("[eNB %02d] Failed to setup SCTP\n", eNB_id);
return -1;
}
S1AP_DEBUG("[eNB %02d] successfully connected to MME\n", eNB_id);
return 0;
}
static int s1ap_mme_decode_successfull_outcome(s1ap_message *message, SuccessfulOutcome_t *successfullOutcome_p) {
assert(successfullOutcome_p != NULL);
message->procedureCode = successfullOutcome_p->procedureCode;
switch(successfullOutcome_p->procedureCode) {
case ProcedureCode_id_InitialContextSetup:
return s1ap_decode_initialcontextsetupresponseies(&message->msg.initialContextSetupResponseIEs, &successfullOutcome_p->value);
case ProcedureCode_id_UEContextRelease:
return s1ap_decode_uecontextreleasecompleteies(&message->msg.ueContextReleaseCompleteIEs, &successfullOutcome_p->value);
default:
S1AP_DEBUG("Unknown procedure ID (%d) for successfull outcome message", (int)successfullOutcome_p->procedureCode);
break;
}
return -1;
}
static inline
int s1ap_mme_encode_unsuccessfull_outcome(s1ap_message *message_p,
uint8_t **buffer, uint32_t *length)
{
switch(message_p->procedureCode) {
case S1ap_ProcedureCode_id_S1Setup:
return s1ap_mme_encode_s1setupfailure(message_p, buffer, length);
default:
S1AP_DEBUG("Unknown procedure ID (%d) for unsuccessfull outcome message\n",
(int)message_p->procedureCode);
break;
}
return -1;
}
static int s1ap_mme_decode_initiating(s1ap_message *message, InitiatingMessage_t *initiating_p) {
assert(initiating_p != NULL);
message->procedureCode = initiating_p->procedureCode;
switch(initiating_p->procedureCode) {
case ProcedureCode_id_uplinkNASTransport:
return s1ap_decode_uplinknastransporties(&message->msg.uplinkNASTransportIEs, &initiating_p->value);
case ProcedureCode_id_S1Setup:
return s1ap_decode_s1setuprequesties(&message->msg.s1SetupRequestIEs, &initiating_p->value);
case ProcedureCode_id_initialUEMessage:
return s1ap_decode_initialuemessageies(&message->msg.initialUEMessageIEs, &initiating_p->value);
case ProcedureCode_id_UEContextReleaseRequest:
return s1ap_decode_uecontextreleaserequesties(&message->msg.ueContextReleaseRequestIEs, &initiating_p->value);
default:
S1AP_DEBUG("Unknown procedure ID (%d) for initiating message", (int)initiating_p->procedureCode);
break;
}
return -1;
}
int s1ap_eNB_decode_pdu(s1ap_message *message, const uint8_t * const buffer,
const uint32_t length)
{
S1AP_PDU_t pdu;
S1AP_PDU_t *pdu_p = &pdu;
asn_dec_rval_t dec_ret;
DevAssert(buffer != NULL);
memset((void *)pdu_p, 0, sizeof(S1AP_PDU_t));
dec_ret = aper_decode(NULL,
&asn_DEF_S1AP_PDU,
(void **)&pdu_p,
buffer,
length,
0,
0);
if (dec_ret.code != RC_OK) {
S1AP_ERROR("Failed to decode pdu\n");
return -1;
}
message->direction = pdu_p->present;
switch(pdu_p->present) {
case S1AP_PDU_PR_initiatingMessage:
return s1ap_eNB_decode_initiating_message(message,
&pdu_p->choice.initiatingMessage);
case S1AP_PDU_PR_successfulOutcome:
return s1ap_eNB_decode_successful_outcome(message,
&pdu_p->choice.successfulOutcome);
case S1AP_PDU_PR_unsuccessfulOutcome:
return s1ap_eNB_decode_unsuccessful_outcome(message,
&pdu_p->choice.unsuccessfulOutcome);
default:
S1AP_DEBUG("Unknown presence (%d) or not implemented\n", (int)pdu_p->present);
break;
}
return -1;
}
int s1ap_eNB_encode_pdu(s1ap_message *message, uint8_t **buffer, uint32_t *len)
{
DevAssert(message != NULL);
DevAssert(buffer != NULL);
DevAssert(len != NULL);
switch(message->direction) {
case S1AP_PDU_PR_initiatingMessage:
return s1ap_eNB_encode_initiating(message, buffer, len);
case S1AP_PDU_PR_successfulOutcome:
return s1ap_eNB_encode_successfull_outcome(message, buffer, len);
case S1AP_PDU_PR_unsuccessfulOutcome:
return s1ap_eNB_encode_unsuccessfull_outcome(message, buffer, len);
default:
S1AP_DEBUG("Unknown message outcome (%d) or not implemented",
(int)message->direction);
break;
}
return -1;
}
/* @brief compare a TAC
*/
static
int
s1ap_mme_compare_tac (
S1ap_TAC_t * tac)
{
int i;
uint16_t tac_value;
DevAssert (tac != NULL);
OCTET_STRING_TO_TAC (tac, tac_value);
config_read_lock (&mme_config);
for (i = 0; i < mme_config.gummei.nb_plmns; i++) {
S1AP_DEBUG ("Comparing config tac %d, received tac = %d\n", mme_config.gummei.plmn_tac[i], tac_value);
if (mme_config.gummei.plmn_tac[i] == tac_value)
return TA_LIST_AT_LEAST_ONE_MATCH;
}
config_unlock (&mme_config);
return TA_LIST_NO_MATCH;
}
static inline
int s1ap_mme_encode_initiating(s1ap_message *message_p,
uint8_t **buffer,
uint32_t *length)
{
switch(message_p->procedureCode) {
case S1ap_ProcedureCode_id_downlinkNASTransport:
return s1ap_mme_encode_downlink_nas_transport(message_p, buffer, length);
case S1ap_ProcedureCode_id_InitialContextSetup:
return s1ap_mme_encode_initial_context_setup_request(message_p, buffer, length);
case S1ap_ProcedureCode_id_UEContextRelease:
return s1ap_mme_encode_ue_context_release_command(message_p, buffer, length);
default:
S1AP_DEBUG("Unknown procedure ID (%d) for initiating message_p\n",
(int)message_p->procedureCode);
break;
}
return -1;
}
//------------------------------------------------------------------------------
int s1ap_eNB_handle_nas_first_req(
instance_t instance, s1ap_nas_first_req_t *s1ap_nas_first_req_p)
//------------------------------------------------------------------------------
{
s1ap_eNB_instance_t *instance_p = NULL;
struct s1ap_eNB_mme_data_s *mme_desc_p = NULL;
struct s1ap_eNB_ue_context_s *ue_desc_p = NULL;
s1ap_message message;
S1ap_InitialUEMessageIEs_t *initial_ue_message_p = NULL;
uint8_t *buffer = NULL;
uint32_t length = 0;
DevAssert(s1ap_nas_first_req_p != NULL);
/* Retrieve the S1AP eNB instance associated with Mod_id */
instance_p = s1ap_eNB_get_instance(instance);
DevAssert(instance_p != NULL);
memset(&message, 0, sizeof(s1ap_message));
message.direction = S1AP_PDU_PR_initiatingMessage;
message.procedureCode = S1ap_ProcedureCode_id_initialUEMessage;
initial_ue_message_p = &message.msg.s1ap_InitialUEMessageIEs;
/* Select the MME corresponding to the provided GUMMEI. */
if (s1ap_nas_first_req_p->ue_identity.presenceMask & UE_IDENTITIES_gummei) {
mme_desc_p = s1ap_eNB_nnsf_select_mme_by_gummei(
instance_p,
s1ap_nas_first_req_p->establishment_cause,
s1ap_nas_first_req_p->ue_identity.gummei);
}
if (mme_desc_p == NULL) {
/* Select the MME corresponding to the provided s-TMSI. */
if (s1ap_nas_first_req_p->ue_identity.presenceMask & UE_IDENTITIES_s_tmsi) {
mme_desc_p = s1ap_eNB_nnsf_select_mme_by_mme_code(
instance_p,
s1ap_nas_first_req_p->establishment_cause,
s1ap_nas_first_req_p->ue_identity.s_tmsi.mme_code);
}
}
if (mme_desc_p == NULL) {
/*
* If no MME corresponds to the GUMMEI or the s-TMSI, selects the MME with the
* highest capacity.
*/
mme_desc_p = s1ap_eNB_nnsf_select_mme(
instance_p,
s1ap_nas_first_req_p->establishment_cause);
}
if (mme_desc_p == NULL) {
/*
* In case eNB has no MME associated, the eNB should inform RRC and discard
* this request.
*/
S1AP_WARN("No MME is associated to the eNB\n");
// TODO: Inform RRC
return -1;
}
/* The eNB should allocate a unique eNB UE S1AP ID for this UE. The value
* will be used for the duration of the connectivity.
*/
ue_desc_p = s1ap_eNB_allocate_new_UE_context();
DevAssert(ue_desc_p != NULL);
/* Keep a reference to the selected MME */
ue_desc_p->mme_ref = mme_desc_p;
ue_desc_p->ue_initial_id = s1ap_nas_first_req_p->ue_initial_id;
ue_desc_p->eNB_instance = instance_p;
do {
struct s1ap_eNB_ue_context_s *collision_p;
/* Peek a random value for the eNB_ue_s1ap_id */
ue_desc_p->eNB_ue_s1ap_id = (random() + random()) & 0x00ffffff;
if ((collision_p = RB_INSERT(s1ap_ue_map, &instance_p->s1ap_ue_head, ue_desc_p))
== NULL) {
S1AP_DEBUG("Found usable eNB_ue_s1ap_id: 0x%06x %d(10)\n",
ue_desc_p->eNB_ue_s1ap_id,
ue_desc_p->eNB_ue_s1ap_id);
/* Break the loop as the id is not already used by another UE */
break;
}
} while(1);
initial_ue_message_p->eNB_UE_S1AP_ID = ue_desc_p->eNB_ue_s1ap_id;
/* Prepare the NAS PDU */
initial_ue_message_p->nas_pdu.buf = s1ap_nas_first_req_p->nas_pdu.buffer;
initial_ue_message_p->nas_pdu.size = s1ap_nas_first_req_p->nas_pdu.length;
/* Set the establishment cause according to those provided by RRC */
DevCheck(s1ap_nas_first_req_p->establishment_cause < RRC_CAUSE_LAST,
s1ap_nas_first_req_p->establishment_cause, RRC_CAUSE_LAST, 0);
initial_ue_message_p->rrC_Establishment_Cause = s1ap_nas_first_req_p->establishment_cause;
if (s1ap_nas_first_req_p->ue_identity.presenceMask & UE_IDENTITIES_s_tmsi) {
S1AP_DEBUG("S_TMSI_PRESENT\n");
initial_ue_message_p->presenceMask |= S1AP_INITIALUEMESSAGEIES_S_TMSI_PRESENT;
MME_CODE_TO_OCTET_STRING(s1ap_nas_first_req_p->ue_identity.s_tmsi.mme_code,
&initial_ue_message_p->s_tmsi.mMEC);
M_TMSI_TO_OCTET_STRING(s1ap_nas_first_req_p->ue_identity.s_tmsi.m_tmsi,
&initial_ue_message_p->s_tmsi.m_TMSI);
}
if (s1ap_nas_first_req_p->ue_identity.presenceMask & UE_IDENTITIES_gummei) {
S1AP_DEBUG("GUMMEI_ID_PRESENT\n");
initial_ue_message_p->presenceMask |= S1AP_INITIALUEMESSAGEIES_GUMMEI_ID_PRESENT;
MCC_MNC_TO_PLMNID(
s1ap_nas_first_req_p->ue_identity.gummei.mcc,
s1ap_nas_first_req_p->ue_identity.gummei.mnc,
s1ap_nas_first_req_p->ue_identity.gummei.mnc_len,
&initial_ue_message_p->gummei_id.pLMN_Identity);
MME_GID_TO_OCTET_STRING(s1ap_nas_first_req_p->ue_identity.gummei.mme_group_id,
&initial_ue_message_p->gummei_id.mME_Group_ID);
MME_CODE_TO_OCTET_STRING(s1ap_nas_first_req_p->ue_identity.gummei.mme_code,
&initial_ue_message_p->gummei_id.mME_Code);
}
/* Assuming TAI is the TAI from the cell */
INT16_TO_OCTET_STRING(instance_p->tac, &initial_ue_message_p->tai.tAC);
MCC_MNC_TO_PLMNID(instance_p->mcc,
instance_p->mnc,
instance_p->mnc_digit_length,
&initial_ue_message_p->tai.pLMNidentity);
/* Set the EUTRAN CGI
* The cell identity is defined on 28 bits but as we use macro enb id,
* we have to pad.
*/
#warning "TODO get cell id from RRC"
MACRO_ENB_ID_TO_CELL_IDENTITY(instance_p->eNB_id,
0, // Cell ID
&initial_ue_message_p->eutran_cgi.cell_ID);
MCC_MNC_TO_TBCD(instance_p->mcc,
instance_p->mnc,
instance_p->mnc_digit_length,
&initial_ue_message_p->eutran_cgi.pLMNidentity);
if (s1ap_eNB_encode_pdu(&message, &buffer, &length) < 0) {
/* Failed to encode message */
DevMessage("Failed to encode initial UE message\n");
}
/* Update the current S1AP UE state */
ue_desc_p->ue_state = S1AP_UE_WAITING_CSR;
/* Assign a stream for this UE :
* From 3GPP 36.412 7)Transport layers:
* Within the SCTP association established between one MME and eNB pair:
* - a single pair of stream identifiers shall be reserved for the sole use
* of S1AP elementary procedures that utilize non UE-associated signalling.
* - At least one pair of stream identifiers shall be reserved for the sole use
* of S1AP elementary procedures that utilize UE-associated signallings.
* However a few pairs (i.e. more than one) should be reserved.
* - A single UE-associated signalling shall use one SCTP stream and
* the stream should not be changed during the communication of the
* UE-associated signalling.
*/
mme_desc_p->nextstream = (mme_desc_p->nextstream + 1) % mme_desc_p->out_streams;
if ((mme_desc_p->nextstream == 0) && (mme_desc_p->out_streams > 1)) {
mme_desc_p->nextstream += 1;
}
ue_desc_p->tx_stream = mme_desc_p->nextstream;
MSC_LOG_TX_MESSAGE(
MSC_S1AP_ENB,
MSC_S1AP_MME,
(const char *)NULL,
0,
MSC_AS_TIME_FMT" initialUEMessage initiatingMessage eNB_ue_s1ap_id %u",
0,0,//MSC_AS_TIME_ARGS(ctxt_pP),
initial_ue_message_p->eNB_UE_S1AP_ID);
/* Send encoded message over sctp */
s1ap_eNB_itti_send_sctp_data_req(instance_p->instance, mme_desc_p->assoc_id,
buffer, length, ue_desc_p->tx_stream);
return 0;
}
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;
}
static inline
int s1ap_eNB_encode_initiating(s1ap_message *s1ap_message_p,
uint8_t **buffer, uint32_t *len)
{
int ret = -1;
MessageDef *message_p;
char *message_string = NULL;
size_t message_string_size;
MessagesIds message_id;
DevAssert(s1ap_message_p != NULL);
message_string = calloc(10000, sizeof(char));
s1ap_string_total_size = 0;
switch(s1ap_message_p->procedureCode) {
case S1ap_ProcedureCode_id_S1Setup:
ret = s1ap_eNB_encode_s1_setup_request(
&s1ap_message_p->msg.s1ap_S1SetupRequestIEs, buffer, len);
s1ap_xer_print_s1ap_s1setuprequest(s1ap_xer__print2sp, message_string, s1ap_message_p);
message_id = S1AP_S1_SETUP_LOG;
break;
case S1ap_ProcedureCode_id_uplinkNASTransport:
ret = s1ap_eNB_encode_uplink_nas_transport(
&s1ap_message_p->msg.s1ap_UplinkNASTransportIEs, buffer, len);
s1ap_xer_print_s1ap_uplinknastransport(s1ap_xer__print2sp, message_string, s1ap_message_p);
message_id = S1AP_UPLINK_NAS_LOG;
break;
case S1ap_ProcedureCode_id_UECapabilityInfoIndication:
ret = s1ap_eNB_encode_ue_capability_info_indication(
&s1ap_message_p->msg.s1ap_UECapabilityInfoIndicationIEs, buffer, len);
s1ap_xer_print_s1ap_uecapabilityinfoindication(s1ap_xer__print2sp, message_string, s1ap_message_p);
message_id = S1AP_UE_CAPABILITY_IND_LOG;
break;
case S1ap_ProcedureCode_id_initialUEMessage:
ret = s1ap_eNB_encode_initial_ue_message(
&s1ap_message_p->msg.s1ap_InitialUEMessageIEs, buffer, len);
s1ap_xer_print_s1ap_initialuemessage(s1ap_xer__print2sp, message_string, s1ap_message_p);
message_id = S1AP_INITIAL_UE_MESSAGE_LOG;
break;
case S1ap_ProcedureCode_id_NASNonDeliveryIndication:
ret = s1ap_eNB_encode_nas_non_delivery(
&s1ap_message_p->msg.s1ap_NASNonDeliveryIndication_IEs, buffer, len);
s1ap_xer_print_s1ap_nasnondeliveryindication_(s1ap_xer__print2sp,
message_string, s1ap_message_p);
message_id = S1AP_NAS_NON_DELIVERY_IND_LOG;
break;
default:
S1AP_DEBUG("Unknown procedure ID (%d) for initiating message\n",
(int)s1ap_message_p->procedureCode);
return ret;
break;
}
message_string_size = strlen(message_string);
message_p = itti_alloc_new_message_sized(TASK_S1AP, message_id, message_string_size + sizeof (IttiMsgText));
message_p->ittiMsg.s1ap_s1_setup_log.size = message_string_size;
memcpy(&message_p->ittiMsg.s1ap_s1_setup_log.text, message_string, message_string_size);
itti_send_msg_to_task(TASK_UNKNOWN, INSTANCE_DEFAULT, message_p);
free(message_string);
return ret;
}
