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Use CU-UP E1 Setup Failure enc/dec lib in stack

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This commit is contained in:
Guido Casati
2025-01-24 11:13:17 +01:00
parent 75b238633c
commit 5ea432c081
2 changed files with 15 additions and 48 deletions
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openair2/E1AP/e1ap.c
+9 -45
View File
@@ -168,53 +168,14 @@ void e1ap_send_SETUP_RESPONSE(sctp_assoc_t assoc_id, const e1ap_setup_resp_t *e1
e1ap_encode_send(CPtype, assoc_id, pdu, 0, __func__);
}
/**
* @brief E1 Setup Failure ASN1 messager builder
* @ref 9.2.1.6 GNB-CU-UP E1 SETUP FAILURE of 3GPP TS 38.463
*/
static void fill_SETUP_FAILURE(long transac_id, E1AP_E1AP_PDU_t *pdu)
{
/* Create */
/* 0. pdu Type */
pdu->present = E1AP_E1AP_PDU_PR_unsuccessfulOutcome;
asn1cCalloc(pdu->choice.unsuccessfulOutcome, initMsg);
/* mandatory */
/**
* Message Type IE
* - procedureCode (integer)
* - Type of Message (choice)
* @ref clause 9.3.1.1 of 3GPP TS 38.463
*/
initMsg->procedureCode = E1AP_ProcedureCode_id_gNB_CU_UP_E1Setup;
initMsg->criticality = E1AP_Criticality_reject;
initMsg->value.present = E1AP_UnsuccessfulOutcome__value_PR_GNB_CU_UP_E1SetupFailure;
E1AP_GNB_CU_UP_E1SetupFailure_t *out = &pdu->choice.unsuccessfulOutcome->value.choice.GNB_CU_UP_E1SetupFailure;
/* mandatory */
/* c1. Transaction ID (integer value), clause 9.3.1.53 of 3GPP TS 38.463 */
asn1cSequenceAdd(out->protocolIEs.list, E1AP_GNB_CU_UP_E1SetupFailureIEs_t, ieC1);
ieC1->id = E1AP_ProtocolIE_ID_id_TransactionID;
ieC1->criticality = E1AP_Criticality_reject;
ieC1->value.present = E1AP_GNB_CU_UP_E1SetupFailureIEs__value_PR_TransactionID;
ieC1->value.choice.TransactionID = transac_id;
/* mandatory */
/* c2. cause (integer value), clause 9.3.1.2 of 3GPP TS 38.463 */
asn1cSequenceAdd(out->protocolIEs.list, E1AP_GNB_CU_UP_E1SetupFailureIEs_t, ieC2);
ieC2->id = E1AP_ProtocolIE_ID_id_Cause;
ieC2->criticality = E1AP_Criticality_ignore;
ieC2->value.present = E1AP_GNB_CU_UP_E1SetupFailureIEs__value_PR_Cause;
ieC2->value.choice.Cause.present = E1AP_Cause_PR_radioNetwork; //choose this accordingly
ieC2->value.choice.Cause.choice.radioNetwork = E1AP_CauseRadioNetwork_unspecified;
}
/**
* @brief E1 Setup Failure ASN1 messager encoder
*/
void e1apCUCP_send_SETUP_FAILURE(sctp_assoc_t assoc_id, long transac_id)
static void e1apCUCP_send_SETUP_FAILURE(sctp_assoc_t assoc_id, const e1ap_setup_fail_t *msg)
{
LOG_D(E1AP, "CU-CP: Encoding E1AP Setup Failure for transac_id %ld...\n", transac_id);
E1AP_E1AP_PDU_t pdu = {0};
fill_SETUP_FAILURE(transac_id, &pdu);
e1ap_encode_send(CPtype, assoc_id, &pdu, 0, __func__);
LOG_D(E1AP, "CU-CP: Encoding E1AP Setup Failure for transac_id %ld...\n", msg->transac_id);
E1AP_E1AP_PDU_t *pdu = encode_e1ap_cuup_setup_failure(msg);
e1ap_encode_send(CPtype, assoc_id, pdu, 0, __func__);
}
int e1apCUCP_handle_SETUP_REQUEST(sctp_assoc_t assoc_id, e1ap_upcp_inst_t *inst, const E1AP_E1AP_PDU_t *pdu)
@@ -233,7 +194,9 @@ int e1apCUCP_handle_SETUP_REQUEST(sctp_assoc_t assoc_id, e1ap_upcp_inst_t *inst,
if (E1AP_SETUP_REQ(msg_p).supported_plmns > 0) {
itti_send_msg_to_task(TASK_RRC_GNB, 0 /*unused by callee*/, msg_p);
} else {
e1apCUCP_send_SETUP_FAILURE(assoc_id, E1AP_SETUP_REQ(msg_p).transac_id);
e1ap_cause_t cause = { .type = E1AP_CAUSE_PROTOCOL, .value = E1AP_PROTOCOL_CAUSE_SEMANTIC_ERROR};
e1ap_setup_fail_t setup_fail = {.transac_id = E1AP_SETUP_REQ(msg_p).transac_id, .cause = cause};
e1apCUCP_send_SETUP_FAILURE(assoc_id, &setup_fail);
itti_free(TASK_CUCP_E1, msg_p);
return -1;
}
@@ -1270,7 +1233,8 @@ void *E1AP_CUCP_task(void *arg)
break;
case E1AP_SETUP_FAIL:
e1apCUCP_send_SETUP_FAILURE(assoc_id, E1AP_SETUP_FAIL(msg).transac_id);
e1apCUCP_send_SETUP_FAILURE(assoc_id, &E1AP_SETUP_FAIL(msg));
free_e1ap_cuup_setup_failure(&E1AP_SETUP_FAIL(msg));
break;
case E1AP_BEARER_CONTEXT_SETUP_REQ:
openair2/RRC/NR/rrc_gNB_cuup.c
+6 -3
View File
@@ -145,12 +145,13 @@ sctp_assoc_t get_new_cuup_for_ue(const gNB_RRC_INST *rrc, const gNB_RRC_UE_t *ue
/**
* @brief Trigger E1AP Setup Failure on CU-CP
*/
static void e1ap_setup_failure(sctp_assoc_t assoc_id, uint64_t transac_id)
static void e1ap_setup_failure(sctp_assoc_t assoc_id, uint64_t transac_id, e1ap_cause_t cause)
{
MessageDef *msg_p = itti_alloc_new_message(TASK_RRC_GNB, 0, E1AP_SETUP_FAIL);
msg_p->ittiMsgHeader.originInstance = assoc_id;
e1ap_setup_fail_t *setup_fail = &E1AP_SETUP_FAIL(msg_p);
setup_fail->transac_id = transac_id;
setup_fail->cause = cause;
LOG_I(NR_RRC, "Triggering E1AP Setup Failure for transac_id %ld, assoc_id %ld\n",
transac_id,
msg_p->ittiMsgHeader.originInstance);
@@ -176,7 +177,8 @@ int rrc_gNB_process_e1_setup_req(sctp_assoc_t assoc_id, e1ap_setup_req_t *req)
c->setup_req->gNB_cu_up_id,
c->setup_req->gNB_cu_up_name,
c->assoc_id);
e1ap_setup_failure(assoc_id, req->transac_id);
e1ap_cause_t cause = { .type = E1AP_CAUSE_RADIO_NETWORK, .value = E1AP_RADIO_CAUSE_UNKNOWN_ALREADY_ALLOCATED_GNB_CU_UP_UE_E1AP_ID};
e1ap_setup_failure(assoc_id, req->transac_id, cause);
return -1;
}
}
@@ -190,7 +192,8 @@ int rrc_gNB_process_e1_setup_req(sctp_assoc_t assoc_id, e1ap_setup_req_t *req)
id->mnc,
rrc->configuration.mcc[i],
rrc->configuration.mnc[i]);
e1ap_setup_failure(assoc_id, req->transac_id);
e1ap_cause_t cause = { .type = E1AP_CAUSE_RADIO_NETWORK, .value = E1AP_RADIO_CAUSE_OTHER};
e1ap_setup_failure(assoc_id, req->transac_id, cause);
return -1;
}
}