Guido Casati
bcd1270237
* this function is used by both CU-CP and CU-UP * it behaves differently depending on the type of E1 instance: CU-CP: inform RRC of E1 connection loss with CU-UP CU-UP: trigger a new SCTP association request by sending an ITTI to the CU-UP task * after receiving the E1AP register request, the CU-UP will send a new association request to SCTP until new E1 connection is achieved by sending a TIMER_HAS_EXPIRED message to the CU-UP task. The function e1apHandleTimer() is basically triggering a new E1 association request until new E1 connection is achieved * print SCTP association state in e1ap.c whenever needed Related to #878
64 lines
2.3 KiB
C
64 lines
2.3 KiB
C
/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Author and copyright: Laurent Thomas, open-cells.com
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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#ifndef E1AP_COMMON_H_
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#define E1AP_COMMON_H_
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#include "openair2/COMMON/e1ap_messages_types.h"
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#include "openair2/COMMON/sctp_messages_types.h"
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#include "common/ngran_types.h"
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typedef struct e1ap_upcp_inst_s {
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instance_t instance;
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uint32_t gnb_id; // associated gNB's ID, unused in E1 but necessary for e.g. E2 agent
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E1_t type;
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sctp_state_e sockState;
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struct {
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sctp_assoc_t assoc_id;
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e1ap_setup_req_t setupReq;
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} cuup;
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instance_t gtpInstN3;
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instance_t gtpInstF1U;
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e1ap_net_config_t net_config;
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} e1ap_upcp_inst_t;
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extern int asn1_xer_print;
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// forward declaration so we don't require E1AP ASN.1 when including this
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// header
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struct E1AP_E1AP_PDU;
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int e1ap_decode_pdu(struct E1AP_E1AP_PDU *pdu, const uint8_t *const buffer, uint32_t length);
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e1ap_upcp_inst_t *getCxtE1(instance_t instance);
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long E1AP_get_next_transaction_identifier();
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void E1AP_free_transaction_identifier(long id);
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void createE1inst(E1_t type, instance_t instance, uint64_t gnb_id, e1ap_net_config_t *nc, e1ap_setup_req_t *req);
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int e1ap_encode_send(E1_t type, sctp_assoc_t assoc_id, struct E1AP_E1AP_PDU *pdu, uint16_t stream, const char *func);
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void e1ap_common_init();
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void cuup_init_n3(instance_t instance);
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#endif /* E1AP_COMMON_H_ */
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