Files
Guido Casatiandbatuhan duyuler 461cfb7911 Add NGAP Handover Request decoding and RRC handler
This commit introduces the NG Mobility Management Procedure known as
Handover Resource Allocation. The inbound message is sent by the AMF
and is known as Handover Request.

Major changes:

(0) Add Handover Resource Allocation initiating message decoding
    * add case for NGAP initiating message and unsuccessful message decoding
(1) handle Handover Request on the target NG-RAN
(2) decode NG Handover Request message
(3) process payload, e.g. create UE context,
    store IDs, set UP security and trigger bearer setup

Co-authored-by: batuhan duyuler <batuhan.duyuler@firecell.io>
2025-09-18 11:34:30 +02:00

100 lines
5.9 KiB
C

/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
/*! \file ngap_common.h
* \brief ngap procedures for both gNB and AMF
* \author Yoshio INOUE, Masayuki HARADA
* \email yoshio.inoue@fujitsu.com,masayuki.harada@fujitsu.com (yoshio.inoue%40fujitsu.com%2cmasayuki.harada%40fujitsu.com)
* \date 2020
* \version 0.1
*/
/** @defgroup _ngap_impl_ NGAP Layer Reference Implementation
* @ingroup _ref_implementation_
* @{
*/
#ifndef NGAP_COMMON_H_
#define NGAP_COMMON_H_
#include "common/utils/LOG/log.h"
#include "oai_asn1.h"
#include "ngap_msg_includes.h"
#include "openair2/COMMON/ngap_messages_types.h"
/* Checking version of ASN1C compiler */
#if (ASN1C_ENVIRONMENT_VERSION < ASN1C_MINIMUM_VERSION)
# error "You are compiling ngap with the wrong version of ASN1C"
#endif
#define NGAP_UE_ID_FMT "0x%06"PRIX32
# include "common/utils/LOG/log.h"
# include "ngap_gNB_default_values.h"
# define NGAP_ERROR(x, args...) LOG_E(NGAP, x, ##args)
# define NGAP_WARN(x, args...) LOG_W(NGAP, x, ##args)
# define NGAP_TRAF(x, args...) LOG_I(NGAP, x, ##args)
# define NGAP_INFO(x, args...) LOG_I(NGAP, x, ##args)
# define NGAP_DEBUG(x, args...) LOG_D(NGAP, x, ##args)
#define NGAP_FIND_PROTOCOLIE_BY_ID(IE_TYPE, ie, container, IE_ID, mandatory) \
do { \
IE_TYPE **ptr; \
ie = NULL; \
for (ptr = container->protocolIEs.list.array; ptr < &container->protocolIEs.list.array[container->protocolIEs.list.count]; ptr++) { \
if ((*ptr)->id == IE_ID) { \
ie = *ptr; \
break; \
} \
} \
if (ie == NULL) { \
if (mandatory) { \
AssertFatal(NGAP, "NGAP_FIND_PROTOCOLIE_BY_ID ie is NULL (searching for ie: %ld)\n", IE_ID); \
} else { \
NGAP_DEBUG("NGAP_FIND_PROTOCOLIE_BY_ID ie is NULL (searching for ie: %ld)\n", IE_ID); \
} \
} \
} while (0); \
if (mandatory && !ie) \
return -1
/** \brief Function callback prototype.
**/
typedef int (*ngap_message_decoded_callback)(sctp_assoc_t assoc_id, uint32_t stream, NGAP_NGAP_PDU_t *pdu);
void encode_ngap_cause(NGAP_Cause_t *out, const ngap_cause_t *in);
nr_guami_t decode_ngap_guami(const NGAP_GUAMI_t *in);
ngap_cause_t decode_ngap_cause(const NGAP_Cause_t *in);
ngap_ambr_t decode_ngap_UEAggregateMaximumBitRate(const NGAP_UEAggregateMaximumBitRate_t *in);
nssai_t decode_ngap_nssai(const NGAP_S_NSSAI_t *in);
ngap_security_capabilities_t decode_ngap_security_capabilities(const NGAP_UESecurityCapabilities_t *in);
ngap_mobility_restriction_t decode_ngap_mobility_restriction(const NGAP_MobilityRestrictionList_t *in);
void encode_ngap_target_id(NGAP_HandoverRequiredIEs_t *out, const target_ran_node_id_t *in);
void encode_ngap_nr_cgi(NGAP_NR_CGI_t *out, const plmn_id_t *plmn, const uint32_t cell_id);
pdusession_level_qos_parameter_t fill_qos(uint8_t qfi, const NGAP_QosFlowLevelQosParameters_t *params);
void *decode_pdusession_transfer(const asn_TYPE_descriptor_t *td, const OCTET_STRING_t buf);
bool decodePDUSessionResourceSetup(pdusession_transfer_t *out, const OCTET_STRING_t in);
/** @}*/
#endif /* NGAP_COMMON_H_ */