/*
 * Copyright (c) 2015, EURECOM (www.eurecom.fr)
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * The views and conclusions contained in the software and documentation are those
 * of the authors and should not be interpreted as representing official policies,
 * either expressed or implied, of the FreeBSD Project.
 */

/** @defgroup _s1ap_impl_ S1AP Layer Reference Implementation
 * @ingroup _ref_implementation_
 * @{
 */

#if HAVE_CONFIG_H_
# include "config.h"
#endif

#ifndef S1AP_COMMON_H_
#define S1AP_COMMON_H_

/* Defined in asn_internal.h */
// extern int asn_debug_indent;
extern int asn_debug;

#if defined(EMIT_ASN_DEBUG_EXTERN)
inline void ASN_DEBUG(const char *fmt, ...);
#endif

#include "S1ap-Criticality.h"
#include "S1ap-Presence.h"
#include "S1ap-PrivateIE-ID.h"
#include "S1ap-ProcedureCode.h"
#include "S1ap-ProtocolExtensionID.h"
#include "S1ap-ProtocolIE-ID.h"
#include "S1ap-TriggeringMessage.h"
#include "S1ap-AllocationAndRetentionPriority.h"
#include "S1ap-Bearers-SubjectToStatusTransfer-List.h"
#include "S1ap-Bearers-SubjectToStatusTransfer-Item.h"
#include "S1ap-BitRate.h"
#include "S1ap-BPLMNs.h"
#include "S1ap-BroadcastCompletedAreaList.h"
#include "S1ap-Cause.h"
#include "S1ap-CauseMisc.h"
#include "S1ap-CauseProtocol.h"
#include "S1ap-CauseRadioNetwork.h"
#include "S1ap-CauseTransport.h"
#include "S1ap-CauseNas.h"
#include "S1ap-CellIdentity.h"
#include "S1ap-CellID-Broadcast.h"
#include "S1ap-CellID-Broadcast-Item.h"
#include "S1ap-Cdma2000PDU.h"
#include "S1ap-Cdma2000RATType.h"
#include "S1ap-Cdma2000SectorID.h"
#include "S1ap-Cdma2000HOStatus.h"
#include "S1ap-Cdma2000HORequiredIndication.h"
#include "S1ap-Cdma2000OneXSRVCCInfo.h"
#include "S1ap-Cdma2000OneXMEID.h"
#include "S1ap-Cdma2000OneXMSI.h"
#include "S1ap-Cdma2000OneXPilot.h"
#include "S1ap-Cdma2000OneXRAND.h"
#include "S1ap-Cell-Size.h"
#include "S1ap-CellType.h"
#include "S1ap-CGI.h"
#include "S1ap-CI.h"
#include "S1ap-CNDomain.h"
#include "S1ap-CSFallbackIndicator.h"
#include "S1ap-CSG-Id.h"
#include "S1ap-CSG-IdList.h"
#include "S1ap-CSG-IdList-Item.h"
#include "S1ap-COUNTvalue.h"
#include "S1ap-DataCodingScheme.h"
#include "S1ap-DL-Forwarding.h"
#include "S1ap-Direct-Forwarding-Path-Availability.h"
#include "S1ap-ECGIList.h"
#include "S1ap-EmergencyAreaIDList.h"
#include "S1ap-EmergencyAreaID.h"
#include "S1ap-EmergencyAreaID-Broadcast.h"
#include "S1ap-EmergencyAreaID-Broadcast-Item.h"
#include "S1ap-CompletedCellinEAI.h"
#include "S1ap-CompletedCellinEAI-Item.h"
#include "S1ap-ENB-ID.h"
#include "S1ap-GERAN-Cell-ID.h"
#include "S1ap-Global-ENB-ID.h"
#include "S1ap-ENB-StatusTransfer-TransparentContainer.h"
#include "S1ap-ENBname.h"
#include "S1ap-ENBX2TLAs.h"
#include "S1ap-EncryptionAlgorithms.h"
#include "S1ap-EPLMNs.h"
#include "S1ap-EventType.h"
#include "S1ap-E-RAB-ID.h"
#include "S1ap-E-RABInformationList.h"
#include "S1ap-E-RABInformationListItem.h"
#include "S1ap-E-RABList.h"
#include "S1ap-E-RABItem.h"
#include "S1ap-E-RABLevelQoSParameters.h"
#include "S1ap-EUTRAN-CGI.h"
#include "S1ap-ExtendedRNC-ID.h"
#include "S1ap-ForbiddenInterRATs.h"
#include "S1ap-ForbiddenTAs.h"
#include "S1ap-ForbiddenTAs-Item.h"
#include "S1ap-ForbiddenTACs.h"
#include "S1ap-ForbiddenLAs.h"
#include "S1ap-ForbiddenLAs-Item.h"
#include "S1ap-ForbiddenLACs.h"
#include "S1ap-GBR-QosInformation.h"
#include "S1ap-GTP-TEID.h"
#include "S1ap-GUMMEI.h"
#include "S1ap-HandoverRestrictionList.h"
#include "S1ap-HandoverType.h"
#include "S1ap-HFN.h"
#include "S1ap-IMSI.h"
#include "S1ap-IntegrityProtectionAlgorithms.h"
#include "S1ap-InterfacesToTrace.h"
#include "S1ap-LAC.h"
#include "S1ap-LAI.h"
#include "S1ap-LastVisitedCell-Item.h"
#include "S1ap-LastVisitedEUTRANCellInformation.h"
#include "S1ap-LastVisitedUTRANCellInformation.h"
#include "S1ap-LastVisitedGERANCellInformation.h"
#include "S1ap-L3-Information.h"
#include "S1ap-MessageIdentifier.h"
#include "S1ap-MMEname.h"
#include "S1ap-MME-Group-ID.h"
#include "S1ap-MME-Code.h"
#include "S1ap-M-TMSI.h"
#include "S1ap-MSClassmark2.h"
#include "S1ap-MSClassmark3.h"
#include "S1ap-NAS-PDU.h"
#include "S1ap-NASSecurityParametersfromE-UTRAN.h"
#include "S1ap-NASSecurityParameterstoE-UTRAN.h"
#include "S1ap-NumberofBroadcastRequest.h"
#include "S1ap-NumberOfBroadcasts.h"
#include "S1ap-OldBSS-ToNewBSS-Information.h"
#include "S1ap-OverloadAction.h"
#include "S1ap-OverloadResponse.h"
#include "S1ap-PagingDRX.h"
#include "S1ap-PDCP-SN.h"
#include "S1ap-PLMNidentity.h"
#include "S1ap-Pre-emptionCapability.h"
#include "S1ap-Pre-emptionVulnerability.h"
#include "S1ap-PriorityLevel.h"
#include "S1ap-QCI.h"
#include "S1ap-ReceiveStatusofULPDCPSDUs.h"
#include "S1ap-RelativeMMECapacity.h"
#include "S1ap-RAC.h"
#include "S1ap-RequestType.h"
#include "S1ap-RIMTransfer.h"
#include "S1ap-RIMInformation.h"
#include "S1ap-RIMRoutingAddress.h"
#include "S1ap-ReportArea.h"
#include "S1ap-RepetitionPeriod.h"
#include "S1ap-RNC-ID.h"
#include "S1ap-RRC-Container.h"
#include "S1ap-RRC-Establishment-Cause.h"
#include "S1ap-SecurityKey.h"
#include "S1ap-SecurityContext.h"
#include "S1ap-SerialNumber.h"
#include "S1ap-SONInformation.h"
#include "S1ap-SONInformationRequest.h"
#include "S1ap-SONInformationReply.h"
#include "S1ap-SONConfigurationTransfer.h"
#include "S1ap-Source-ToTarget-TransparentContainer.h"
#include "S1ap-SourceBSS-ToTargetBSS-TransparentContainer.h"
#include "S1ap-SourceeNB-ID.h"
#include "S1ap-SRVCCOperationPossible.h"
#include "S1ap-SRVCCHOIndication.h"
#include "S1ap-SourceeNB-ToTargeteNB-TransparentContainer.h"
#include "S1ap-SourceRNC-ToTargetRNC-TransparentContainer.h"
#include "S1ap-ServedGUMMEIs.h"
#include "S1ap-ServedGUMMEIsItem.h"
#include "S1ap-ServedGroupIDs.h"
#include "S1ap-ServedMMECs.h"
#include "S1ap-ServedPLMNs.h"
#include "S1ap-SubscriberProfileIDforRFP.h"
#include "S1ap-SupportedTAs.h"
#include "S1ap-SupportedTAs-Item.h"
#include "S1ap-S-TMSI.h"
#include "S1ap-TAC.h"
#include "S1ap-TAIItem.h"
#include "S1ap-TAIList.h"
#include "S1ap-TAIListforWarning.h"
#include "S1ap-TAI.h"
#include "S1ap-TAI-Broadcast.h"
#include "S1ap-TAI-Broadcast-Item.h"
#include "S1ap-CompletedCellinTAI.h"
#include "S1ap-CompletedCellinTAI-Item.h"
#include "S1ap-TargetID.h"
#include "S1ap-TargeteNB-ID.h"
#include "S1ap-TargetRNC-ID.h"
#include "S1ap-TargeteNB-ToSourceeNB-TransparentContainer.h"
#include "S1ap-Target-ToSource-TransparentContainer.h"
#include "S1ap-TargetRNC-ToSourceRNC-TransparentContainer.h"
#include "S1ap-TargetBSS-ToSourceBSS-TransparentContainer.h"
#include "S1ap-TimeToWait.h"
#include "S1ap-Time-UE-StayedInCell.h"
#include "S1ap-TransportLayerAddress.h"
#include "S1ap-TraceActivation.h"
#include "S1ap-TraceDepth.h"
#include "S1ap-E-UTRAN-Trace-ID.h"
#include "S1ap-TypeOfError.h"
#include "S1ap-UEAggregateMaximumBitrate.h"
#include "S1ap-UE-associatedLogicalS1-ConnectionItem.h"
#include "S1ap-UEIdentityIndexValue.h"
#include "S1ap-UE-HistoryInformation.h"
#include "S1ap-UEPagingID.h"
#include "S1ap-UERadioCapability.h"
#include "S1ap-UESecurityCapabilities.h"
#include "S1ap-WarningAreaList.h"
#include "S1ap-WarningType.h"
#include "S1ap-WarningSecurityInfo.h"
#include "S1ap-WarningMessageContents.h"
#include "S1ap-X2TNLConfigurationInfo.h"
#include "S1ap-CriticalityDiagnostics.h"
#include "S1ap-CriticalityDiagnostics-IE-List.h"
#include "S1ap-CriticalityDiagnostics-IE-Item.h"
#include "S1ap-ResetType.h"
#include "S1ap-Inter-SystemInformationTransferType.h"
#include "S1ap-UE-S1AP-IDs.h"
#include "S1ap-UE-S1AP-ID-pair.h"
#include "S1ap-MME-UE-S1AP-ID.h"
#include "S1ap-ENB-UE-S1AP-ID.h"
#include "S1ap-TBCD-STRING.h"
#include "S1ap-InitiatingMessage.h"
#include "S1ap-SuccessfulOutcome.h"
#include "S1ap-UnsuccessfulOutcome.h"
#include "S1ap-HandoverRequired.h"
#include "S1ap-HandoverCommand.h"
#include "S1ap-HandoverNotify.h"
#include "S1ap-HandoverPreparationFailure.h"
#include "S1ap-HandoverRequest.h"
#include "S1ap-HandoverRequestAcknowledge.h"
#include "S1ap-HandoverFailure.h"
#include "S1ap-PathSwitchRequest.h"
#include "S1ap-PathSwitchRequestAcknowledge.h"
#include "S1ap-PathSwitchRequestFailure.h"
#include "S1ap-E-RABSetupRequest.h"
#include "S1ap-E-RABSetupResponse.h"
#include "S1ap-E-RABModifyRequest.h"
#include "S1ap-E-RABModifyResponse.h"
#include "S1ap-E-RABReleaseIndication.h"
#include "S1ap-E-RABReleaseCommand.h"
#include "S1ap-E-RABReleaseResponse.h"
#include "S1ap-InitialContextSetupRequest.h"
#include "S1ap-InitialContextSetupResponse.h"
#include "S1ap-InitialContextSetupFailure.h"
#include "S1ap-UEContextReleaseRequest.h"
#include "S1ap-Paging.h"
#include "S1ap-DownlinkNASTransport.h"
#include "S1ap-InitialUEMessage.h"
#include "S1ap-UplinkNASTransport.h"
#include "S1ap-NASNonDeliveryIndication.h"
#include "S1ap-HandoverCancel.h"
#include "S1ap-HandoverCancelAcknowledge.h"
#include "S1ap-Reset.h"
#include "S1ap-ResetAcknowledge.h"
#include "S1ap-S1SetupResponse.h"
#include "S1ap-S1SetupRequest.h"
#include "S1ap-S1SetupFailure.h"
#include "S1ap-ErrorIndication.h"
#include "S1ap-ENBConfigurationUpdate.h"
#include "S1ap-ENBConfigurationUpdateAcknowledge.h"
#include "S1ap-ENBConfigurationUpdateFailure.h"
#include "S1ap-MMEConfigurationUpdate.h"
#include "S1ap-MMEConfigurationUpdateAcknowledge.h"
#include "S1ap-MMEConfigurationUpdateFailure.h"
#include "S1ap-DownlinkS1cdma2000tunneling.h"
#include "S1ap-UplinkS1cdma2000tunneling.h"
#include "S1ap-UEContextModificationRequest.h"
#include "S1ap-UEContextModificationResponse.h"
#include "S1ap-UEContextModificationFailure.h"
#include "S1ap-UECapabilityInfoIndication.h"
#include "S1ap-UEContextReleaseCommand.h"
#include "S1ap-UEContextReleaseComplete.h"
#include "S1ap-ENBStatusTransfer.h"
#include "S1ap-MMEStatusTransfer.h"
#include "S1ap-DeactivateTrace.h"
#include "S1ap-TraceStart.h"
#include "S1ap-TraceFailureIndication.h"
#include "S1ap-CellTrafficTrace.h"
#include "S1ap-LocationReportingControl.h"
#include "S1ap-LocationReportingFailureIndication.h"
#include "S1ap-LocationReport.h"
#include "S1ap-OverloadStart.h"
#include "S1ap-OverloadStop.h"
#include "S1ap-WriteReplaceWarningRequest.h"
#include "S1ap-WriteReplaceWarningResponse.h"
#include "S1ap-ENBDirectInformationTransfer.h"
#include "S1ap-MMEDirectInformationTransfer.h"
#include "S1ap-ENBConfigurationTransfer.h"
#include "S1ap-MMEConfigurationTransfer.h"
#include "S1ap-PrivateMessage.h"
#include "S1ap-E-RABReleaseItemBearerRelComp.h"
#include "S1ap-E-RABToBeSwitchedDLList.h"
#include "S1ap-E-RABToBeSwitchedDLItem.h"
#include "S1ap-E-RABToBeSwitchedULList.h"
#include "S1ap-E-RABToBeSwitchedULItem.h"
#include "S1ap-E-RABToBeSetupListBearerSUReq.h"
#include "S1ap-E-RABToBeSetupItemBearerSUReq.h"
#include "S1ap-E-RABDataForwardingList.h"
#include "S1ap-E-RABDataForwardingItem.h"
#include "S1ap-E-RABToBeSetupListHOReq.h"
#include "S1ap-E-RABToBeSetupItemHOReq.h"
#include "S1ap-E-RABAdmittedList.h"
#include "S1ap-E-RABAdmittedItem.h"
#include "S1ap-E-RABFailedToSetupListHOReqAck.h"
#include "S1ap-E-RABToBeSetupItemCtxtSUReq.h"
#include "S1ap-E-RABToBeSetupListCtxtSUReq.h"
#include "S1ap-E-RABSetupItemBearerSURes.h"
#include "S1ap-E-RABSetupListBearerSURes.h"
#include "S1ap-E-RABSetupItemCtxtSURes.h"
#include "S1ap-E-RABSetupListCtxtSURes.h"
#include "S1ap-E-RABReleaseListBearerRelComp.h"
#include "S1ap-E-RABModifyItemBearerModRes.h"
#include "S1ap-E-RABModifyListBearerModRes.h"
#include "S1ap-E-RABFailedToSetupItemHOReqAck.h"
#include "S1ap-E-RABFailedToSetupListHOReqAck.h"
#include "S1ap-E-RABToBeModifiedItemBearerModReq.h"
#include "S1ap-E-RABToBeModifiedListBearerModReq.h"
#include "S1ap-UE-associatedLogicalS1-ConnectionListResAck.h"
#include "S1ap-IE.h"
#include "S1AP-PDU.h"

#if defined (UPDATE_RELEASE_9)
# include "S1ap-BroadcastCancelledAreaList.h"
# include "S1ap-CancelledCellinEAI.h"
# include "S1ap-CancelledCellinEAI-Item.h"
# include "S1ap-CancelledCellinTAI.h"
# include "S1ap-CancelledCellinTAI-Item.h"
# include "S1ap-CellAccessMode.h"
# include "S1ap-CellID-Cancelled.h"
# include "S1ap-CellID-Cancelled-Item.h"
# include "S1ap-ConcurrentWarningMessageIndicator.h"
# include "S1ap-CSGMembershipStatus.h"
# include "S1ap-Data-Forwarding-Not-Possible.h"
# include "S1ap-EmergencyAreaID-Cancelled.h"
# include "S1ap-EmergencyAreaID-Cancelled-Item.h"
# include "S1ap-E-RABList.h"
# include "S1ap-EUTRANRoundTripDelayEstimationInfo.h"
# include "S1ap-ExtendedRepetitionPeriod.h"
# include "S1ap-LPPa-PDU.h"
# include "S1ap-PS-ServiceNotAvailable.h"
# include "S1ap-Routing-ID.h"
# include "S1ap-StratumLevel.h"
# include "S1ap-SynchronizationStatus.h"
# include "S1ap-TimeSynchronizationInfo.h"
# include "S1ap-TAI-Cancelled.h"
# include "S1ap-TAI-Cancelled-Item.h"
# include "S1ap-KillRequest.h"
# include "S1ap-KillResponse.h"
# include "S1ap-DownlinkUEAssociatedLPPaTransport.h"
# include "S1ap-UplinkUEAssociatedLPPaTransport.h"
# include "S1ap-DownlinkNonUEAssociatedLPPaTransport.h"
# include "S1ap-UplinkNonUEAssociatedLPPaTransport.h"
#endif /* (UPDATE_RELEASE_9) */

#if defined(UPDATE_RELEASE_10)
# include "S1ap-PagingPriority.h"
# include "S1ap-RelayNode-Indicator.h"
# include "S1ap-GWContextReleaseIndication.h"
# include "S1ap-MMERelaySupportIndicator.h"
# include "S1ap-ManagementBasedMDTAllowed.h"
# include "S1ap-PrivacyIndicator.h"
# include "S1ap-TrafficLoadReductionIndication.h"
# include "S1ap-GUMMEIList.h"
#endif /* (UPDATE_RELEASE_10) */

/* Checking version of ASN1C compiler */
#if (ASN1C_ENVIRONMENT_VERSION < ASN1C_MINIMUM_VERSION)
# error "You are compiling s1ap with the wrong version of ASN1C"
#endif

#ifndef FALSE
# define FALSE (0)
#endif
#ifndef TRUE
# define TRUE  (!FALSE)
#endif

#define S1AP_UE_ID_FMT  "0x%06"PRIX32

extern int asn_debug;
extern int asn1_xer_print;

#if defined(ENB_MODE)
# include "UTIL/LOG/log.h"
# include "s1ap_eNB_default_values.h"
# define S1AP_ERROR(x, args...) LOG_E(S1AP, x, ##args)
# define S1AP_WARN(x, args...)  LOG_W(S1AP, x, ##args)
# define S1AP_TRAF(x, args...)  LOG_I(S1AP, x, ##args)
# define S1AP_INFO(x, args...) LOG_I(S1AP, x, ##args)
# define S1AP_DEBUG(x, args...) LOG_I(S1AP, x, ##args)
#else
# include "mme_default_values.h"
# define S1AP_ERROR(x, args...) do { fprintf(stdout, "[S1AP][E]"x, ##args); } while(0)
# define S1AP_WARN(x, args...)  do { fprintf(stdout, "[S1AP][W]"x, ##args); } while(0)
# define S1AP_TRAF(x, args...)  do { fprintf(stdout, "[S1AP][T]"x, ##args); } while(0)
# define S1AP_INFO(x, args...) do { fprintf(stdout, "[S1AP][I]"x, ##args); } while(0)
# define S1AP_DEBUG(x, args...) do { fprintf(stdout, "[S1AP][D]"x, ##args); } while(0)
#endif

//Forward declaration
struct s1ap_message_s;

/** \brief Function callback prototype.
 **/
typedef int (*s1ap_message_decoded_callback)(
  uint32_t               assoc_id,
  uint32_t               stream,
  struct s1ap_message_s *message_p
);

/** \brief Encode a successfull outcome message
 \param buffer pointer to buffer in which data will be encoded
 \param length pointer to the length of buffer
 \param procedureCode Procedure code for the message
 \param criticality Criticality of the message
 \param td ASN1C type descriptor of the sptr
 \param sptr Deferenced pointer to the structure to encode
 @returns size in bytes encded on success or 0 on failure
 **/
ssize_t s1ap_generate_successfull_outcome(
  uint8_t               **buffer,
  uint32_t               *length,
  e_S1ap_ProcedureCode    procedureCode,
  S1ap_Criticality_t      criticality,
  asn_TYPE_descriptor_t  *td,
  void                   *sptr);

/** \brief Encode an initiating message
 \param buffer pointer to buffer in which data will be encoded
 \param length pointer to the length of buffer
 \param procedureCode Procedure code for the message
 \param criticality Criticality of the message
 \param td ASN1C type descriptor of the sptr
 \param sptr Deferenced pointer to the structure to encode
 @returns size in bytes encded on success or 0 on failure
 **/
ssize_t s1ap_generate_initiating_message(
  uint8_t               **buffer,
  uint32_t               *length,
  e_S1ap_ProcedureCode    procedureCode,
  S1ap_Criticality_t      criticality,
  asn_TYPE_descriptor_t  *td,
  void                   *sptr);

/** \brief Encode an unsuccessfull outcome message
 \param buffer pointer to buffer in which data will be encoded
 \param length pointer to the length of buffer
 \param procedureCode Procedure code for the message
 \param criticality Criticality of the message
 \param td ASN1C type descriptor of the sptr
 \param sptr Deferenced pointer to the structure to encode
 @returns size in bytes encded on success or 0 on failure
 **/
ssize_t s1ap_generate_unsuccessfull_outcome(
  uint8_t               **buffer,
  uint32_t               *length,
  e_S1ap_ProcedureCode    procedureCode,
  S1ap_Criticality_t      criticality,
  asn_TYPE_descriptor_t  *td,
  void                   *sptr);

/** \brief Generate a new IE
 \param id Protocol ie id of the IE
 \param criticality Criticality of the IE
 \param type ASN1 type descriptor of the IE value
 \param sptr Structure to be encoded in the value field
 @returns a pointer to the newly created IE structure or NULL in case of failure
 **/
S1ap_IE_t *s1ap_new_ie(S1ap_ProtocolIE_ID_t   id,
                       S1ap_Criticality_t     criticality,
                       asn_TYPE_descriptor_t *type,
                       void                  *sptr);

/** \brief Handle criticality
 \param criticality Criticality of the IE
 @returns void
 **/
void s1ap_handle_criticality(S1ap_Criticality_t criticality);

#endif /* S1AP_COMMON_H_ */
