gsm_08_18.h

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/* Updated to reflect TS 48.018 version 15.0.0 Release 15 */
 
#pragma once
 
#include <stdint.h>
#include <osmocom/core/endian.h>
 
#define BVCI_SIGNALLING 0x0000
#define BVCI_PTM        0x0001
 
/* typo backwards compatiblity */
#define BSSGP_PDUT_RA_CAPA_UDPATE BSSGP_PDUT_RA_CAPA_UPDATE
 
enum bssgp_pdu_type {
        /* PDUs between RL and BSSGP SAPs */
        BSSGP_PDUT_DL_UNITDATA          = 0x00,
        BSSGP_PDUT_UL_UNITDATA          = 0x01,
        BSSGP_PDUT_RA_CAPABILITY        = 0x02,
        /* PDUs between MBMS SAPs */
        BSSGP_PDUT_PTM_UNITDATA         = 0x03, /* reserved in later specs */
        BSSGP_PDUT_DL_MMBS_UNITDATA     = 0x04,
        BSSGP_PDUT_UL_MMBS_UNITDATA     = 0x05,
        /* PDUs between GMM SAPs */
        BSSGP_PDUT_PAGING_PS            = 0x06,
        BSSGP_PDUT_PAGING_CS            = 0x07,
        BSSGP_PDUT_RA_CAPA_UPDATE       = 0x08,
        BSSGP_PDUT_RA_CAPA_UPDATE_ACK   = 0x09,
        BSSGP_PDUT_RADIO_STATUS         = 0x0a,
        BSSGP_PDUT_SUSPEND              = 0x0b,
        BSSGP_PDUT_SUSPEND_ACK          = 0x0c,
        BSSGP_PDUT_SUSPEND_NACK         = 0x0d,
        BSSGP_PDUT_RESUME               = 0x0e,
        BSSGP_PDUT_RESUME_ACK           = 0x0f,
        BSSGP_PDUT_RESUME_NACK          = 0x10,
        BSSGP_PDUT_PAGING_PS_REJECT     = 0x11,
        BSSGP_PDUT_DUMMY_PAGING_PS      = 0x12,
        BSSGP_PDUT_DUMMY_PAGING_PS_RESP = 0x13,
        BSSGP_PDUT_MS_REGISTR_ENQ       = 0x14,
        BSSGP_PDUT_MS_REGISTR_ENQ_RESP  = 0x15,
        /* PDus between NM SAPs */
        BSSGP_PDUT_BVC_BLOCK            = 0x20,
        BSSGP_PDUT_BVC_BLOCK_ACK        = 0x21,
        BSSGP_PDUT_BVC_RESET            = 0x22,
        BSSGP_PDUT_BVC_RESET_ACK        = 0x23,
        BSSGP_PDUT_BVC_UNBLOCK          = 0x24,
        BSSGP_PDUT_BVC_UNBLOCK_ACK      = 0x25,
        BSSGP_PDUT_FLOW_CONTROL_BVC     = 0x26,
        BSSGP_PDUT_FLOW_CONTROL_BVC_ACK = 0x27,
        BSSGP_PDUT_FLOW_CONTROL_MS      = 0x28,
        BSSGP_PDUT_FLOW_CONTROL_MS_ACK  = 0x29,
        BSSGP_PDUT_FLUSH_LL             = 0x2a,
        BSSGP_PDUT_FLUSH_LL_ACK         = 0x2b,
        BSSGP_PDUT_LLC_DISCARD          = 0x2c,
        BSSGP_PDUT_FLOW_CONTROL_PFC     = 0x2d,
        BSSGP_PDUT_FLOW_CONTROL_PFC_ACK = 0x2e,
        BSSGP_PDUT_SGSN_INVOKE_TRACE    = 0x40,
        BSSGP_PDUT_STATUS               = 0x41,
        BSSGP_PDUT_OVERLOAD             = 0x42,
        /* PDUs between PFM SAP's */
        BSSGP_PDUT_DOWNLOAD_BSS_PFC     = 0x50,
        BSSGP_PDUT_CREATE_BSS_PFC       = 0x51,
        BSSGP_PDUT_CREATE_BSS_PFC_ACK   = 0x52,
        BSSGP_PDUT_CREATE_BSS_PFC_NACK  = 0x53,
        BSSGP_PDUT_MODIFY_BSS_PFC       = 0x54,
        BSSGP_PDUT_MODIFY_BSS_PFC_ACK   = 0x55,
        BSSGP_PDUT_DELETE_BSS_PFC       = 0x56,
        BSSGP_PDUT_DELETE_BSS_PFC_ACK   = 0x57,
        BSSGP_PDUT_DELETE_BSS_PFC_REQ   = 0x58,
        BSSGP_PDUT_PS_HO_REQUIRED       = 0x59,
        BSSGP_PDUT_PS_HO_REQUIRED_ACK   = 0x5a,
        BSSGP_PDUT_PS_HO_REQUIRED_NACK  = 0x5b,
        BSSGP_PDUT_PS_HO_REQUEST        = 0x5c,
        BSSGP_PDUT_PS_HO_REQUEST_ACK    = 0x5d,
        BSSGP_PDUT_PS_HO_REQUEST_NACK   = 0x5e,
        BSSGP_PDUT_PS_HO_COMPLETE       = 0x91,
        BSSGP_PDUT_PS_HO_CANCEL         = 0x92,
        BSSGP_PDUT_PS_HO_COMPLETE_ACK   = 0x93,
        /* PDUs between LCS SAPs */
        BSSGP_PDUT_PERFORM_LOC_REQ      = 0x60,
        BSSGP_PDUT_PERFORM_LOC_RESP     = 0x61,
        BSSGP_PDUT_PERFORM_LOC_ABORT    = 0x62,
        BSSGP_PDUT_POSITION_COMMAND     = 0x63,
        BSSGP_PDUT_POSITION_RESPONSE    = 0x64,
        /* PDUs between RIM SAPs */
        BSSGP_PDUT_RAN_INFO             = 0x70,
        BSSGP_PDUT_RAN_INFO_REQ         = 0x71,
        BSSGP_PDUT_RAN_INFO_ACK         = 0x72,
        BSSGP_PDUT_RAN_INFO_ERROR       = 0x73,
        BSSGP_PDUT_RAN_INFO_APP_ERROR   = 0x74,
        /* PDUs between MBMS SAPs */
        BSSGP_PDUT_MBMS_START_REQ       = 0x80,
        BSSGP_PDUT_MBMS_START_RESP      = 0x81,
        BSSGP_PDUT_MBMS_STOP_REQ        = 0x82,
        BSSGP_PDUT_MBMS_STOP_RESP       = 0x83,
        BSSGP_PDUT_MBMS_UPDATE_REQ      = 0x84,
        BSSGP_PDUT_MBMS_UPDATE_RESP     = 0x85,
};
 
struct bssgp_ud_hdr {
        uint8_t pdu_type;       
        uint32_t tlli;          
        uint8_t qos_profile[3]; 
        uint8_t data[0];        /* optional/conditional IEs as TLVs */
} __attribute__((packed));
 
struct bssgp_normal_hdr {
        uint8_t pdu_type;       
        uint8_t data[0];        
};
 
enum bssgp_iei_type {
        BSSGP_IE_ALIGNMENT              = 0x00,
        BSSGP_IE_BMAX_DEFAULT_MS        = 0x01,
        BSSGP_IE_BSS_AREA_ID            = 0x02,
        BSSGP_IE_BUCKET_LEAK_RATE       = 0x03,
        BSSGP_IE_BVCI                   = 0x04,
        BSSGP_IE_BVC_BUCKET_SIZE        = 0x05,
        BSSGP_IE_BVC_MEASUREMENT        = 0x06,
        BSSGP_IE_CAUSE                  = 0x07,
        BSSGP_IE_CELL_ID                = 0x08,
        BSSGP_IE_CHAN_NEEDED            = 0x09,
        BSSGP_IE_DRX_PARAMS             = 0x0a,
        BSSGP_IE_EMLPP_PRIO             = 0x0b,
        BSSGP_IE_FLUSH_ACTION           = 0x0c,
        BSSGP_IE_IMSI                   = 0x0d,
        BSSGP_IE_LLC_PDU                = 0x0e,
        BSSGP_IE_LLC_FRAMES_DISCARDED   = 0x0f,
        BSSGP_IE_LOCATION_AREA          = 0x10,
        BSSGP_IE_MOBILE_ID              = 0x11,
        BSSGP_IE_MS_BUCKET_SIZE         = 0x12,
        BSSGP_IE_MS_RADIO_ACCESS_CAP    = 0x13,
        BSSGP_IE_OMC_ID                 = 0x14,
        BSSGP_IE_PDU_IN_ERROR           = 0x15,
        BSSGP_IE_PDU_LIFETIME           = 0x16,
        BSSGP_IE_PRIORITY               = 0x17,
        BSSGP_IE_QOS_PROFILE            = 0x18,
        BSSGP_IE_RADIO_CAUSE            = 0x19,
        BSSGP_IE_RA_CAP_UPD_CAUSE       = 0x1a,
        BSSGP_IE_ROUTEING_AREA          = 0x1b,
        BSSGP_IE_R_DEFAULT_MS           = 0x1c,
        BSSGP_IE_SUSPEND_REF_NR         = 0x1d,
        BSSGP_IE_TAG                    = 0x1e,
        BSSGP_IE_TLLI                   = 0x1f,
        BSSGP_IE_TMSI                   = 0x20,
        BSSGP_IE_TRACE_REFERENC         = 0x21,
        BSSGP_IE_TRACE_TYPE             = 0x22,
        BSSGP_IE_TRANSACTION_ID         = 0x23,
        BSSGP_IE_TRIGGER_ID             = 0x24,
        BSSGP_IE_NUM_OCT_AFF            = 0x25,
        BSSGP_IE_LSA_ID_LIST            = 0x26,
        BSSGP_IE_LSA_INFORMATION        = 0x27,
        BSSGP_IE_PACKET_FLOW_ID         = 0x28,
        BSSGP_IE_PACKET_FLOW_TIMER      = 0x29,
        BSSGP_IE_AGG_BSS_QOS_PROFILE    = 0x3a,
        BSSGP_IE_FEATURE_BITMAP         = 0x3b,
        BSSGP_IE_BUCKET_FULL_RATIO      = 0x3c,
        BSSGP_IE_SERVICE_UTRAN_CCO      = 0x3d,
        BSSGP_IE_NSEI                   = 0x3e,
        BSSGP_IE_RRLP_APDU              = 0x3f,
        BSSGP_IE_LCS_QOS                = 0x40,
        BSSGP_IE_LCS_CLIENT_TYPE        = 0x41,
        BSSGP_IE_REQUESTED_GPS_AST_DATA = 0x42,
        BSSGP_IE_LOCATION_TYPE          = 0x43,
        BSSGP_IE_LOCATION_ESTIMATE      = 0x44,
        BSSGP_IE_POSITIONING_DATA       = 0x45,
        BSSGP_IE_DECIPHERING_KEYS       = 0x46,
        BSSGP_IE_LCS_PRIORITY           = 0x47,
        BSSGP_IE_LCS_CAUSE              = 0x48,
        BSSGP_IE_LCS_CAPABILITY         = 0x49,
        BSSGP_IE_RRLP_FLAGS             = 0x4a,
        BSSGP_IE_RIM_APP_IDENTITY       = 0x4b,
        BSSGP_IE_RIM_SEQ_NR             = 0x4c,
        BSSGP_IE_RIM_REQ_APP_CONTAINER  = 0x4d,
        BSSGP_IE_RAN_INFO_APP_CONTAINER = 0x4e,
        BSSGP_IE_RIM_PDU_INDICATIONS    = 0x4f,
        BSSGP_IE_PFC_FLOW_CTRL_PARAMS   = 0x52,
        BSSGP_IE_GLOBAL_CN_ID           = 0x53,
        BSSGP_IE_RIM_ROUTING_INFO       = 0x54,
        BSSGP_IE_RIM_PROTOCOL_VERSION   = 0x55,
        BSSGP_IE_APP_ERROR_CONTAINER    = 0x56,
        BSSGP_IE_RI_REQ_RIM_CONTAINER   = 0x57,
        BSSGP_IE_RI_RIM_CONTAINER       = 0x58,
        BSSGP_IE_RI_APP_ERROR_RIM_CONT  = 0x59,
        BSSGP_IE_RI_ACK_RIM_CONTAINER   = 0x5a,
        BSSGP_IE_RI_ERROR_RIM_COINTAINER= 0x5b,
        BSSGP_IE_TMGI                   = 0x5c,
        BSSGP_IE_MBMS_SESSION_ID        = 0x5d,
        BSSGP_IE_MBMS_SESSION_DURATION  = 0x5e,
        BSSGP_IE_MBMS_SA_ID_LIST        = 0x5f,
        BSSGP_IE_MBMS_RESPONSE          = 0x60,
        BSSGP_IE_MBMS_RA_LIST           = 0x61,
        BSSGP_IE_MBMS_SESSION_INFO      = 0x62,
        BSSGP_IE_MBMS_STOP_CAUSE        = 0x63,
        BSSGP_IE_SBSS_TO_TBSS_TR_CONT   = 0x64,
        BSSGP_IE_TBSS_TO_SBSS_TR_CONT   = 0x65,
        BSSGP_IE_NAS_CONT_FOR_PS_HO     = 0x66,
        BSSGP_IE_PFC_TO_BE_SETUP_LIST   = 0x67,
        BSSGP_IE_LIST_OF_SETUP_PFC      = 0x68,
        BSSGP_IE_EXT_FEATURE_BITMAP     = 0x69,
        BSSGP_IE_SRC_TO_TGT_TR_CONT     = 0x6a,
        BSSGP_IE_TGT_TO_SRC_TR_CONT     = 0x6b,
        BSSGP_IE_NC_ID                  = 0x6c,
        BSSGP_IE_PAGE_MODE              = 0x6d,
        BSSGP_IE_CONTAINER_ID           = 0x6e,
        BSSGP_IE_GLOBAL_TFI             = 0x6f,
        BSSGP_IE_IMEI                   = 0x70,
        BSSGP_IE_TIME_TO_MBMS_DATA_XFR  = 0x71,
        BSSGP_IE_MBMS_SESSION_REP_NR    = 0x72,
        BSSGP_IE_INTER_RAT_HO_INFO      = 0x73,
        BSSGP_IE_PS_HO_COMMAND          = 0x74,
        BSSGP_IE_PS_HO_INDICATIONS      = 0x75,
        BSSGP_IE_SI_PSI_CONTAINER       = 0x76,
        BSSGP_IE_ACTIVE_PFC_LIST        = 0x77,
        BSSGP_IE_VELOCITY_DATA          = 0x78,
        BSSGP_IE_DTM_HO_COMMAND         = 0x79,
        BSSGP_IE_CS_INDICATION          = 0x7a,
        BSSGP_IE_RQD_GANNS_AST_DATA     = 0x7b,
        BSSGP_IE_GANSS_LOCATION_TYPE    = 0x7c,
        BSSGP_IE_GANSS_POSITIONING_DATA = 0x7d,
        BSSGP_IE_FLOW_CTRL_GRANULARITY  = 0x7e,
        BSSGP_IE_ENB_ID                 = 0x7f,
        BSSGP_IE_EUTRAN_IRAT_HO_INFO    = 0x80,
        BSSGP_IE_SUB_PID4RAT_FREQ_PRIO  = 0x81,
        BSSGP_IE_REQ4IRAT_HO_INFO       = 0x82,
        BSSGP_IE_RELIABLE_IRAT_HO_INFO  = 0x83,
        BSSGP_IE_SON_TRANSFER_APP_ID    = 0x84,
        BSSGP_IE_CSG_ID                 = 0x85,
        BSSGP_IE_TAC                    = 0x86,
        BSSGP_IE_REDIRECT_ATTEMPT_FLAG  = 0x87,
        BSSGP_IE_REDIRECTION_INDICATION = 0x88,
        BSSGP_IE_REDIRECTION_COMPLETED  = 0x89,
        BSSGP_IE_UNCONF_SEND_STATE_VAR  = 0x8a,
        BSSGP_IE_IRAT_MEASUREMENT_CONF  = 0x8b,
        BSSGP_IE_SCI                    = 0x8c,
        BSSGP_IE_GGSN_PGW_LOCATION      = 0x8d,
        BSSGP_IE_SELECTED_PLMN_ID       = 0x8e,
        BSSGP_IE_PRIO_CLASS_IND         = 0x8f,
        BSSGP_IE_SOURCE_CELL_ID         = 0x90,
        BSSGP_IE_IRAT_MEAS_CFG_E_EARFCN = 0x91,
        BSSGP_IE_EDRX_PARAMETERS        = 0x92,
        BSSGP_IE_T_UNTIL_NEXT_PAGING    = 0x93,
        BSSGP_IE_COVERAGE_CLASS         = 0x98,
        BSSGP_IE_PAGING_ATTEMPT_INFO    = 0x99,
        BSSGP_IE_EXCEPTION_REPORT_FLAG  = 0x9a,
        BSSGP_IE_OLD_RA_ID              = 0x9b,
        BSSGP_IE_ATTACH_IND             = 0x9c,
        BSSGP_IE_PLMN_ID                = 0x9d,
        BSSGP_IE_MME_QUERY              = 0x9e,
        BSSGP_IE_SGSN_GROUP_ID          = 0x9f,
        BSSGP_IE_ADDITIONAL_PTMSI       = 0xa0,
        BSSGP_IE_UE_USAGE_TYPE          = 0xa1,
        BSSGP_IE_MLAT_TIMER             = 0xa2,
        BSSGP_IE_MLAT_TA                = 0xa3,
        BSSGP_IE_MS_SYNC_ACCURACY       = 0xa4,
        BSSGP_IE_BTS_RX_ACCURACY_LVL    = 0xa5,
        BSSGP_IE_TA_REQ                 = 0xa6,
};
 
enum gprs_bssgp_cause {
        BSSGP_CAUSE_PROC_OVERLOAD               = 0x00,
        BSSGP_CAUSE_EQUIP_FAIL                  = 0x01,
        BSSGP_CAUSE_TRASIT_NET_FAIL             = 0x02,
        BSSGP_CAUSE_CAPA_GREATER_0KPBS          = 0x03,
        BSSGP_CAUSE_UNKNOWN_MS                  = 0x04,
        BSSGP_CAUSE_UNKNOWN_BVCI                = 0x05,
        BSSGP_CAUSE_CELL_TRAF_CONG              = 0x06,
        BSSGP_CAUSE_SGSN_CONG                   = 0x07,
        BSSGP_CAUSE_OML_INTERV                  = 0x08,
        BSSGP_CAUSE_BVCI_BLOCKED                = 0x09,
        BSSGP_CAUSE_PFC_CREATE_FAIL             = 0x0a,
        BSSGP_CAUSE_PFC_PREEMPTED               = 0x0b,
        BSSGP_CAUSE_ABQP_NOT_SUPP               = 0x0c,
        BSSGP_CAUSE_SEM_INCORR_PDU              = 0x20,
        BSSGP_CAUSE_INV_MAND_INF                = 0x21,
        BSSGP_CAUSE_MISSING_MAND_IE             = 0x22,
        BSSGP_CAUSE_MISSING_COND_IE             = 0x23,
        BSSGP_CAUSE_UNEXP_COND_IE               = 0x24,
        BSSGP_CAUSE_COND_IE_ERR                 = 0x25,
        BSSGP_CAUSE_PDU_INCOMP_STATE            = 0x26,
        BSSGP_CAUSE_PROTO_ERR_UNSPEC            = 0x27,
        BSSGP_CAUSE_PDU_INCOMP_FEAT             = 0x28,
        BSSGP_CAUSE_REQ_INFO_NOT_AVAIL          = 0x29,
        BSSGP_CAUSE_UNKN_DST                    = 0x2a,
        BSSGP_CAUSE_UNKN_RIM_AI                 = 0x2b,
        BSSGP_CAUSE_INVAL_CONT_UI               = 0x2c,
        BSSGP_CAUSE_PFC_QUEUE                   = 0x2d,
        BSSGP_CAUSE_PFC_CREATED                 = 0x2e,
        BSSGP_CAUSE_T12_EXPIRY                  = 0x2f,
        BSSGP_CAUSE_MS_UNDER_PS_HO              = 0x30,
        BSSGP_CAUSE_UL_QUALITY                  = 0x31,
        BSSGP_CAUSE_UL_STRENGTH                 = 0x32,
        BSSGP_CAUSE_DL_QUALITY                  = 0x33,
        BSSGP_CAUSE_DL_STRENGTH                 = 0x34,
        BSSGP_CAUSE_DISTANCE                    = 0x35,
        BSSGP_CAUSE_BETTER_CELL                 = 0x36,
        BSSGP_CAUSE_TRAFFIC                     = 0x37,
        BSSGP_CAUSE_MS_RADIO_LOSS               = 0x38,
        BSSGP_CAUSE_MS_BACK_OLD_CHAN            = 0x39,
        BSSGP_CAUSE_T13_EXPIRY                  = 0x3a,
        BSSGP_CAUSE_T14_EXPIRY                  = 0x3b,
        BSSGP_CAUSE_NOT_ALL_PFC                 = 0x3c,
        BSSGP_CAUSE_CS                          = 0x3d,
        BSSGP_CAUSE_REQ_ALG_NOT_SUPP            = 0x3e,
        BSSGP_CAUSE_RELOC_FAIL                  = 0x3f,
        BSSGP_CAUSE_DIR_RETRY                   = 0x40,
        BSSGP_CAUSE_TIME_CRIT_RELOC             = 0x41,
        BSSGP_CAUSE_PS_HO_TARG_NA               = 0x42,
        BSSGP_CAUSE_PS_HO_TARG_NOT_SUPP         = 0x43,
        BSSGP_CAUSE_PUESBINE                    = 0x44,
        BSSGP_CAUSE_DTM_HO_NO_CS_RES            = 0x45,
        BSSGP_CAUSE_DTM_HO_PS_ALLOC_FAIL        = 0x46,
        BSSGP_CAUSE_DTM_HO_T24_EXPIRY           = 0x47,
        BSSGP_CAUSE_DTM_HO_INVAL_CS_IND         = 0x48,
        BSSGP_CAUSE_DTM_HO_T23_EXPIRY           = 0x49,
        BSSGP_CAUSE_DTM_HO_MSC_ERR              = 0x4a,
        BSSGP_CAUSE_INVAL_CSG_CELL              = 0x4b,
};
 
/* Feature Bitmap (Section 11.3.45) */
#define BSSGP_FEAT_PFC          0x01    /* Packet Flow Context */
#define BSSGP_FEAT_CBL          0x02    /* Current Bucket Level */
#define BSSGP_FEAT_INR          0x04    /* Inter-NSE re-routing */
#define BSSGP_FEAT_LCS          0x08    /* Location Services */
#define BSSGP_FEAT_RIM          0x10    /* RAN Inoformation Management */
#define BSSGP_FEAT_PFC_FC       0x20    /* PFC Flow Control */
#define BSSGP_FEAT_ERS          0x40    /* Enhanced Radio Status */
#define BSSGP_FEAT_MBMS         0x80    /* Multimedia Broadcast */
 
/* Extended Feature Bitmap (Section 11.3.84) */
#define BSSGP_XFEAT_PSHO        0x01    /* PS Handover */
#define BSSGP_XFEAT_GBIT        0x02    /* Gigabit Interface */
#define BSSGP_XFEAT_MOCN        0x04    /* Multi-Operator CN */
#define BSSGP_XFEAT_CSPS        0x08    /* CS/PS coordination enhancements */
#define BSSGP_XFEAT_ECIoT       0x10    /* EC-GSM-IoT */
#define BSSGP_XFEAT_DCN         0x20    /* Dedicated CN */
#define BSSGP_XFEAT_eDRX        0x40    /* eDRX */
#define BSSGP_XFEAT_MSAD        0x80    /* MS-assisted Dedicated CN selection */
 
/* Flow Control Granularity (Section 11.3.102) */
enum bssgp_fc_granularity {
        BSSGP_FC_GRAN_100       = 0,
        BSSGP_FC_GRAN_1000      = 1,
        BSSGP_FC_GRAN_10000     = 2,
        BSSGP_FC_GRAN_100000    = 3,
};
 
/* RAN-INFORMATION-REQUEST PDU Type Extension
 * 3GPP TS 48.018, table 11.3.65.1 */
enum bssgp_rim_pdu_type {
        RIM_PDU_TYPE_STOP       = 0,
        RIM_PDU_TYPE_SING_REP   = 1,
        RIM_PDU_TYPE_MULT_REP   = 2,
};
 
/* RIM PDU Indications
 * 3GPP TS 48.018, section 11.3.65.0 */
struct bssgp_rim_pdu_ind {
#if OSMO_IS_LITTLE_ENDIAN
                uint8_t ack_requested:1,
                        pdu_type_ext:3,
                        reserved:4;
#elif OSMO_IS_BIG_ENDIAN
/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianness.py) */
                uint8_t reserved:4, pdu_type_ext:3, ack_requested:1;
#endif
} __attribute__ ((packed));