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ENDC X2AP: Implementation of SgNB Addition Request ACK

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This commit is contained in:
Raymond Knopp
2019-12-06 14:16:43 +01:00
parent 5bda11024d
commit ad82602e9a
3 changed files with 130 additions and 12 deletions
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openair2/X2AP/x2ap_eNB_generate_messages.c
+117 -7
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@@ -1525,7 +1525,7 @@ int x2ap_eNB_generate_ENDC_x2_SgNB_addition_request(
X2AP_Pre_emptionCapability_t pre_emptionCapability = X2AP_Pre_emptionCapability_shall_not_trigger_pre_emption;
X2AP_Pre_emptionVulnerability_t pre_emptionVulnerability = X2AP_Pre_emptionVulnerability_not_pre_emptable;
priority_level_t priority_level = PRIORITY_LEVEL_NO_PRIORITY;
e_rab_setup_t e_MCG_rabs_tobeadded;
e_rab_tobe_added_t e_MCG_rabs_tobeadded;
e_MCG_rabs_tobeadded.gtp_teid = 0;
e_MCG_rabs_tobeadded.eNB_addr.length = 24;
uint8_t buf[20] = { 0 };
@@ -1560,9 +1560,9 @@ int x2ap_eNB_generate_ENDC_x2_SgNB_addition_request(
/* Prepare the X2AP message to encode */
memset(&pdu, 0, sizeof(pdu));
pdu.present = X2AP_X2AP_PDU_PR_initiatingMessage;
pdu.choice.successfulOutcome.procedureCode = X2AP_ProcedureCode_id_sgNBAdditionPreparation;
pdu.choice.successfulOutcome.criticality = X2AP_Criticality_reject;
pdu.choice.successfulOutcome.value.present = X2AP_InitiatingMessage__value_PR_SgNBAdditionRequest;
pdu.choice.initiatingMessage.procedureCode = X2AP_ProcedureCode_id_sgNBAdditionPreparation;
pdu.choice.initiatingMessage.criticality = X2AP_Criticality_reject;
pdu.choice.initiatingMessage.value.present = X2AP_InitiatingMessage__value_PR_SgNBAdditionRequest;
out = &pdu.choice.initiatingMessage.value.choice.SgNBAdditionRequest;
ie = (X2AP_SgNBAdditionRequest_IEs_t *)calloc(1, sizeof(X2AP_SgNBAdditionRequest_IEs_t));
@@ -1677,8 +1677,118 @@ int x2ap_eNB_generate_ENDC_x2_SgNB_addition_request_ACK( x2ap_eNB_instance_t *in
x2ap_ENDC_sgnb_addition_req_ACK_t *x2ap_sgnb_addition_req_ACK, int ue_id)
{
return 0;
X2AP_X2AP_PDU_t pdu;
X2AP_SgNBAdditionRequestAcknowledge_t *out;
X2AP_SgNBAdditionRequestAcknowledge_IEs_t *ie;
X2AP_E_RABs_Admitted_ToBeAdded_SgNBAddReqAck_ItemIEs_t *e_RABS_AdmittedToBeAdded_SgNBAddReq_ItemIEs;
X2AP_E_RABs_Admitted_ToBeAdded_SgNBAddReqAck_Item_t *e_RABS_AdmittedToBeAdded_SgNBAddReq_Item;
uint8_t *buffer;
uint32_t len;
int ret = 0;
int MeNB_UE_X2AP_id = ue_id;
int SgNB_UE_X2AP_id = 0;
// Currently hardcoded (dummy) values filling the fields of SgNB_addition_request message. To be substituted
// with values coming from RRC.
uint16_t nRencryptionAlgorithms = 0;
uint16_t nRintegrityProtectionAlgorithms = 0;
uint8_t SgNBSecurityKey[32] = { 0 };
int uEaggregateMaximumBitRateDownlink = 100000000;
int uEaggregateMaximumBitRateUplink = 100000000;
int e_rabs_admitted_tobeadded = 1;
int e_RAB_ID = 1;
long int pDCPatSgNB = X2AP_EN_DC_ResourceConfiguration__pDCPatSgNB_present;
long int mCGresources = X2AP_EN_DC_ResourceConfiguration__mCGresources_not_present;
long int sCGresources = X2AP_EN_DC_ResourceConfiguration__sCGresources_not_present;
e_rab_setup_t e_SCG_rabs_tobeadded;
e_SCG_rabs_tobeadded.gtp_teid = 0;
e_SCG_rabs_tobeadded.eNB_addr.length = 24;
uint8_t buf[20] = { 0 };
memcpy(e_SCG_rabs_tobeadded.eNB_addr.buffer, buf, 20*sizeof(uint8_t));
DevAssert(instance_p != NULL);
DevAssert(x2ap_eNB_data_p != NULL);
x2ap_eNB_data_p->state = X2AP_ENB_STATE_WAITING;
// Prepare the X2AP message to encode
memset(&pdu, 0, sizeof(pdu));
pdu.present = X2AP_X2AP_PDU_PR_successfulOutcome;
pdu.choice.successfulOutcome.procedureCode = X2AP_ProcedureCode_id_sgNBAdditionPreparation;
pdu.choice.successfulOutcome.criticality = X2AP_Criticality_reject;
pdu.choice.successfulOutcome.value.present = X2AP_SuccessfulOutcome__value_PR_SgNBAdditionRequestAcknowledge;
out = &pdu.choice.successfulOutcome.value.choice.SgNBAdditionRequestAcknowledge;
// MeNB_UE_X2AP_id
ie = (X2AP_SgNBAdditionRequestAcknowledge_IEs_t *)calloc(1, sizeof(X2AP_SgNBAdditionRequestAcknowledge_IEs_t));
ie->id = X2AP_ProtocolIE_ID_id_MeNB_UE_X2AP_ID;
ie->criticality= X2AP_Criticality_reject;
ie->value.present = X2AP_SgNBAdditionRequestAcknowledge_IEs__value_PR_UE_X2AP_ID;
ie->value.choice.UE_X2AP_ID = MeNB_UE_X2AP_id; //x2ap_id_get_id_source(&instance_p->id_manager, ue_id);
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
// SgNB_UE_X2AP_id
ie = (X2AP_SgNBAdditionRequestAcknowledge_IEs_t *)calloc(1, sizeof(X2AP_SgNBAdditionRequestAcknowledge_IEs_t));
ie->id = X2AP_ProtocolIE_ID_id_SgNB_UE_X2AP_ID;
ie->criticality= X2AP_Criticality_reject;
ie->value.present = X2AP_SgNBAdditionRequestAcknowledge_IEs__value_PR_SgNB_UE_X2AP_ID;
ie->value.choice.UE_X2AP_ID = SgNB_UE_X2AP_id; //x2ap_id_get_id_source(&instance_p->id_manager, ue_id);
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
ie = (X2AP_SgNBAdditionRequestAcknowledge_IEs_t *)calloc(1, sizeof(X2AP_SgNBAdditionRequestAcknowledge_IEs_t));
ie->id = X2AP_ProtocolIE_ID_id_E_RABs_Admitted_ToBeAdded_SgNBAddReqAckList;
ie->criticality = X2AP_Criticality_ignore;
ie->value.present = X2AP_SgNBAdditionRequestAcknowledge_IEs__value_PR_E_RABs_Admitted_ToBeAdded_SgNBAddReqAckList;
for (int i=0;i<e_rabs_admitted_tobeadded;i++) {
e_RABS_AdmittedToBeAdded_SgNBAddReq_ItemIEs = (X2AP_E_RABs_Admitted_ToBeAdded_SgNBAddReqAck_ItemIEs_t *)calloc(1,sizeof(X2AP_E_RABs_Admitted_ToBeAdded_SgNBAddReqAck_ItemIEs_t));
e_RABS_AdmittedToBeAdded_SgNBAddReq_ItemIEs->id = X2AP_ProtocolIE_ID_id_E_RABs_Admitted_ToBeAdded_SgNBAddReqAck_Item;
e_RABS_AdmittedToBeAdded_SgNBAddReq_ItemIEs->criticality = X2AP_Criticality_ignore;
e_RABS_AdmittedToBeAdded_SgNBAddReq_ItemIEs->value.present = X2AP_E_RABs_Admitted_ToBeAdded_SgNBAddReqAck_ItemIEs__value_PR_E_RABs_Admitted_ToBeAdded_SgNBAddReqAck_Item;
e_RABS_AdmittedToBeAdded_SgNBAddReq_Item = &e_RABS_AdmittedToBeAdded_SgNBAddReq_ItemIEs->value.choice.E_RABs_Admitted_ToBeAdded_SgNBAddReqAck_Item;
{
e_RABS_AdmittedToBeAdded_SgNBAddReq_Item->e_RAB_ID = e_RAB_ID;
e_RABS_AdmittedToBeAdded_SgNBAddReq_Item->en_DC_ResourceConfiguration.pDCPatSgNB = pDCPatSgNB;
e_RABS_AdmittedToBeAdded_SgNBAddReq_Item->en_DC_ResourceConfiguration.mCGresources = mCGresources;
e_RABS_AdmittedToBeAdded_SgNBAddReq_Item->en_DC_ResourceConfiguration.sCGresources = sCGresources;
if (pDCPatSgNB == X2AP_EN_DC_ResourceConfiguration__pDCPatSgNB_present){
e_RABS_AdmittedToBeAdded_SgNBAddReq_Item->resource_configuration.present = X2AP_E_RABs_Admitted_ToBeAdded_SgNBAddReqAck_Item__resource_configuration_PR_sgNBPDCPpresent;
INT32_TO_OCTET_STRING(e_SCG_rabs_tobeadded.gtp_teid, &e_RABS_AdmittedToBeAdded_SgNBAddReq_Item->resource_configuration.choice.sgNBPDCPpresent.s1_DL_GTPtunnelEndpoint.gTP_TEID);
e_RABS_AdmittedToBeAdded_SgNBAddReq_Item->resource_configuration.choice.sgNBPDCPpresent.s1_DL_GTPtunnelEndpoint.transportLayerAddress.size = e_SCG_rabs_tobeadded.eNB_addr.length/8;
e_RABS_AdmittedToBeAdded_SgNBAddReq_Item->resource_configuration.choice.sgNBPDCPpresent.s1_DL_GTPtunnelEndpoint.transportLayerAddress.bits_unused = e_SCG_rabs_tobeadded.eNB_addr.length%8;
e_RABS_AdmittedToBeAdded_SgNBAddReq_Item->resource_configuration.choice.sgNBPDCPpresent.s1_DL_GTPtunnelEndpoint.transportLayerAddress.buf =
calloc(1, e_RABS_AdmittedToBeAdded_SgNBAddReq_Item->resource_configuration.choice.sgNBPDCPpresent.s1_DL_GTPtunnelEndpoint.transportLayerAddress.size);
memcpy (e_RABS_AdmittedToBeAdded_SgNBAddReq_Item->resource_configuration.choice.sgNBPDCPpresent.s1_DL_GTPtunnelEndpoint.transportLayerAddress.buf,
e_SCG_rabs_tobeadded.eNB_addr.buffer,
e_RABS_AdmittedToBeAdded_SgNBAddReq_Item->resource_configuration.choice.sgNBPDCPpresent.s1_DL_GTPtunnelEndpoint.transportLayerAddress.size);
}
}
ASN_SEQUENCE_ADD(&ie->value.choice.E_RABs_Admitted_ToBeAdded_SgNBAddReqAckList.list, e_RABS_AdmittedToBeAdded_SgNBAddReq_ItemIEs);
}
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
ie = (X2AP_SgNBAdditionRequestAcknowledge_IEs_t *)calloc(1, sizeof(X2AP_SgNBAdditionRequestAcknowledge_IEs_t));
ie->id = X2AP_ProtocolIE_ID_id_SgNBtoMeNBContainer;
ie->criticality = X2AP_Criticality_reject;
ie->value.present = X2AP_SgNBAdditionRequestAcknowledge_IEs__value_PR_SgNBtoMeNBContainer;
ie->value.choice.SgNBtoMeNBContainer.buf = (uint8_t *)calloc(x2ap_sgnb_addition_req_ACK->rrc_buffer_size, sizeof(uint8_t));
memcpy(ie->value.choice.SgNBtoMeNBContainer.buf, x2ap_sgnb_addition_req_ACK->rrc_buffer, x2ap_sgnb_addition_req_ACK->rrc_buffer_size);
ie->value.choice.SgNBtoMeNBContainer.size = x2ap_sgnb_addition_req_ACK->rrc_buffer_size; //4096;
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
if (x2ap_eNB_encode_pdu(&pdu, &buffer, &len) < 0) {
X2AP_ERROR("Failed to encode ENDC X2 SgNB_addition request message\n");
return -1;
}
MSC_LOG_TX_MESSAGE (MSC_X2AP_SRC_ENB, MSC_X2AP_TARGET_ENB, NULL, 0, "0 X2Setup/initiatingMessage assoc_id %u", x2ap_eNB_data_p->assoc_id);
x2ap_eNB_itti_send_sctp_data_req(instance_p->instance, x2ap_eNB_data_p->assoc_id, buffer, len, 0);
return ret;
}