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/* From GSM08.08 / 3GPP TS 48.008 version 11.7.0 Release 11 */

#pragma once

#include <stdlib.h>
#include <stdbool.h>
#include <stdint.h>
#include <osmocom/core/linuxlist.h>
#include <osmocom/core/utils.h>

/*
 * this is from GSM 03.03 CGI but is copied in GSM 08.08
 * in § 3.2.2.27 for Cell Identifier List.
 * See gsm0808_cell_id_discr_name() for a human readable representation.
 */
enum CELL_IDENT {
	CELL_IDENT_WHOLE_GLOBAL		= 0,
	CELL_IDENT_LAC_AND_CI		= 1,
	CELL_IDENT_CI			= 2,
	CELL_IDENT_NO_CELL		= 3,
	CELL_IDENT_LAI			= 4,
	CELL_IDENT_LAC			= 5,
	CELL_IDENT_BSS			= 6,
	CELL_IDENT_UTRAN_PLMN_LAC_RNC	= 8,
	CELL_IDENT_UTRAN_RNC		= 9,
	CELL_IDENT_UTRAN_LAC_RNC	= 10,
};
/* Keep this misnamed CELL_IDENT for API backwards compatibility (see OS#3124). */
#define CELL_IDENT_LAI_AND_LAC CELL_IDENT_LAI

/* GSM 08.06 § 6.3 */
enum BSSAP_MSG_TYPE {
	BSSAP_MSG_BSS_MANAGEMENT    = 0x0,
	BSSAP_MSG_DTAP		    = 0x1,
};

struct bssmap_header {
	uint8_t type;
	uint8_t length;
} __attribute__((packed));

struct dtap_header {
	uint8_t type;
	uint8_t link_id;
	uint8_t length;
} __attribute__((packed));


enum BSS_MAP_MSG_TYPE {
	BSS_MAP_MSG_RESERVED_0		= 0,

	/* ASSIGNMENT MESSAGES */
	BSS_MAP_MSG_ASSIGNMENT_RQST	= 1,
	BSS_MAP_MSG_ASSIGNMENT_COMPLETE	= 2,
	BSS_MAP_MSG_ASSIGNMENT_FAILURE	= 3,
	BSS_MAP_MSG_CHAN_MOD_RQST	= 8,

	/*  HANDOVER MESSAGES */
	BSS_MAP_MSG_HANDOVER_RQST		= 16,
	BSS_MAP_MSG_HANDOVER_REQUIRED		= 17,
	BSS_MAP_MSG_HANDOVER_RQST_ACKNOWLEDGE= 18,
	BSS_MAP_MSG_HANDOVER_CMD		= 19,
	BSS_MAP_MSG_HANDOVER_COMPLETE		= 20,
	BSS_MAP_MSG_HANDOVER_SUCCEEDED		= 21,
	BSS_MAP_MSG_HANDOVER_FAILURE		= 22,
	BSS_MAP_MSG_HANDOVER_PERFORMED		= 23,
	BSS_MAP_MSG_HANDOVER_CANDIDATE_ENQUIRE	= 24,
	BSS_MAP_MSG_HANDOVER_CANDIDATE_RESPONSE	= 25,
	BSS_MAP_MSG_HANDOVER_REQUIRED_REJECT	= 26,
	BSS_MAP_MSG_HANDOVER_DETECT		= 27,
	BSS_MAP_MSG_INT_HANDOVER_REQUIRED	= 0x70,
	BSS_MAP_MSG_INT_HANDOVER_REQUIRED_REJ	= 0x71,
	BSS_MAP_MSG_INT_HANDOVER_CMD		= 0x72,
	BSS_MAP_MSG_INT_HANDOVER_ENQUIRY	= 0x73,

	/* RELEASE MESSAGES */
	BSS_MAP_MSG_CLEAR_CMD		= 32,
	BSS_MAP_MSG_CLEAR_COMPLETE		= 33,
	BSS_MAP_MSG_CLEAR_RQST		= 34,
	BSS_MAP_MSG_RESERVED_1			= 35,
	BSS_MAP_MSG_RESERVED_2			= 36,
	BSS_MAP_MSG_SAPI_N_REJECT		= 37,
	BSS_MAP_MSG_CONFUSION			= 38,

	/* OTHER CONNECTION RELATED MESSAGES */
	BSS_MAP_MSG_SUSPEND			= 40,
	BSS_MAP_MSG_RESUME			= 41,
	BSS_MAP_MSG_CONNECTION_ORIENTED_INFORMATION = 42,
	BSS_MAP_MSG_PERFORM_LOCATION_RQST	= 43,
	BSS_MAP_MSG_LSA_INFORMATION		= 44,
	BSS_MAP_MSG_PERFORM_LOCATION_RESPONSE	= 45,
	BSS_MAP_MSG_PERFORM_LOCATION_ABORT	= 46,
	BSS_MAP_MSG_COMMON_ID			= 47,
	BSS_MAP_MSG_REROUTE_CMD			= 0x78,
	BSS_MAP_MSG_REROUTE_COMPLETE		= 0x79,

	/* GENERAL MESSAGES */
	BSS_MAP_MSG_RESET			= 48,
	BSS_MAP_MSG_RESET_ACKNOWLEDGE		= 49,
	BSS_MAP_MSG_OVERLOAD			= 50,
	BSS_MAP_MSG_RESERVED_3			= 51,
	BSS_MAP_MSG_RESET_CIRCUIT		= 52,
	BSS_MAP_MSG_RESET_CIRCUIT_ACKNOWLEDGE	= 53,
	BSS_MAP_MSG_MSC_INVOKE_TRACE		= 54,
	BSS_MAP_MSG_BSS_INVOKE_TRACE		= 55,
	BSS_MAP_MSG_CONNECTIONLESS_INFORMATION	= 58,
	BSS_MAP_MSG_RESET_IP_RSRC		= 0x3d,
	BSS_MAP_MSG_RESET_IP_RSRC_ACK		= 0x3e,

	/* TERRESTRIAL RESOURCE MESSAGES */
	BSS_MAP_MSG_BLOCK			= 64,
	BSS_MAP_MSG_BLOCKING_ACKNOWLEDGE	= 65,
	BSS_MAP_MSG_UNBLOCK			= 66,
	BSS_MAP_MSG_UNBLOCKING_ACKNOWLEDGE	= 67,
	BSS_MAP_MSG_CIRCUIT_GROUP_BLOCK		= 68,
	BSS_MAP_MSG_CIRCUIT_GROUP_BLOCKING_ACKNOWLEDGE	= 69,
	BSS_MAP_MSG_CIRCUIT_GROUP_UNBLOCK	= 70,
	BSS_MAP_MSG_CIRCUIT_GROUP_UNBLOCKING_ACKNOWLEDGE = 71,
	BSS_MAP_MSG_UNEQUIPPED_CIRCUIT		= 72,
	BSS_MAP_MSG_CHANGE_CIRCUIT		= 78,
	BSS_MAP_MSG_CHANGE_CIRCUIT_ACKNOWLEDGE	= 79,

	/* RADIO RESOURCE MESSAGES */
	BSS_MAP_MSG_RESOURCE_RQST		= 80,
	BSS_MAP_MSG_RESOURCE_INDICATION		= 81,
	BSS_MAP_MSG_PAGING			= 82,
	BSS_MAP_MSG_CIPHER_MODE_CMD		= 83,
	BSS_MAP_MSG_CLASSMARK_UPDATE		= 84,
	BSS_MAP_MSG_CIPHER_MODE_COMPLETE	= 85,
	BSS_MAP_MSG_QUEUING_INDICATION		= 86,
	BSS_MAP_MSG_COMPLETE_LAYER_3		= 87,
	BSS_MAP_MSG_CLASSMARK_RQST		= 88,
	BSS_MAP_MSG_CIPHER_MODE_REJECT		= 89,
	BSS_MAP_MSG_LOAD_INDICATION		= 90,

	/* VGCS/VBS */
	BSS_MAP_MSG_VGCS_VBS_SETUP		= 4,
	BSS_MAP_MSG_VGCS_VBS_SETUP_ACK		= 5,
	BSS_MAP_MSG_VGCS_VBS_SETUP_REFUSE	= 6,
	BSS_MAP_MSG_VGCS_VBS_ASSIGNMENT_RQST	= 7,
	BSS_MAP_MSG_VGCS_VBS_ASSIGNMENT_RESULT	= 28,
	BSS_MAP_MSG_VGCS_VBS_ASSIGNMENT_FAILURE	= 29,
	BSS_MAP_MSG_VGCS_VBS_QUEUING_INDICATION	= 30,
	BSS_MAP_MSG_UPLINK_RQST		= 31,
	BSS_MAP_MSG_UPLINK_RQST_ACKNOWLEDGE	= 39,
	BSS_MAP_MSG_UPLINK_RQST_CONFIRMATION	= 73,
	BSS_MAP_MSG_UPLINK_RELEASE_INDICATION	= 74,
	BSS_MAP_MSG_UPLINK_REJECT_CMD	= 75,
	BSS_MAP_MSG_UPLINK_RELEASE_CMD	= 76,
	BSS_MAP_MSG_UPLINK_SEIZED_CMD	= 77,
	BSS_MAP_MSG_VGCS_ADDL_INFO		= 0x60,
	BSS_MAP_MSG_NOTIFICATION_DATA		= 0x62,
	BSS_MAP_MSG_UPLINK_APP_DATA		= 0x63,

	/* LOCAL SWITCHING */
	BSS_MAP_MSG_LCLS_CONNECT_CTRL		= 0x74,
	BSS_MAP_MSG_LCLS_CONNECT_CTRL_ACK	= 0x75,
	BSS_MAP_MSG_LCLS_NOTIFICATION		= 0x76,
};

#define BSS_MAP_MSG_ASSIGMENT_RQST BSS_MAP_MSG_ASSIGNMENT_RQST
#define BSS_MAP_MSG_ASSIGMENT_COMPLETE BSS_MAP_MSG_ASSIGNMENT_COMPLETE
#define BSS_MAP_MSG_ASSIGMENT_FAILURE BSS_MAP_MSG_ASSIGNMENT_FAILURE

enum GSM0808_IE_CODING {
	GSM0808_IE_CIRCUIT_IDENTITY_CODE	= 1,
	GSM0808_IE_RESERVED_0			= 2,
	GSM0808_IE_RESOURCE_AVAILABLE		= 3,
	GSM0808_IE_CAUSE			= 4,
	GSM0808_IE_CELL_IDENTIFIER		= 5,
	GSM0808_IE_PRIORITY			= 6,
	GSM0808_IE_LAYER_3_HEADER_INFORMATION	= 7,
	GSM0808_IE_IMSI				= 8,
	GSM0808_IE_TMSI				= 9,
	GSM0808_IE_ENCRYPTION_INFORMATION	= 10,
	GSM0808_IE_CHANNEL_TYPE			= 11,
	GSM0808_IE_PERIODICITY			= 12,
	GSM0808_IE_EXTENDED_RESOURCE_INDICATOR	= 13,
	GSM0808_IE_NUMBER_OF_MSS		= 14,
	GSM0808_IE_RESERVED_1			= 15,
	GSM0808_IE_RESERVED_2			= 16,
	GSM0808_IE_RESERVED_3			= 17,
	GSM0808_IE_CLASSMARK_INFORMATION_T2	= 18,
	GSM0808_IE_CLASSMARK_INFORMATION_T3	= 19,
	GSM0808_IE_INTERFERENCE_BAND_TO_USE	= 20,
	GSM0808_IE_RR_CAUSE			= 21,
	GSM0808_IE_RESERVED_4			= 22,
	GSM0808_IE_LAYER_3_INFORMATION		= 23,
	GSM0808_IE_DLCI				= 24,
	GSM0808_IE_DOWNLINK_DTX_FLAG		= 25,
	GSM0808_IE_CELL_IDENTIFIER_LIST		= 26,
	GSM0808_IE_RESPONSE_RQST		= 27,
	GSM0808_IE_RESOURCE_INDICATION_METHOD	= 28,
	GSM0808_IE_CLASSMARK_INFORMATION_TYPE_1	= 29,
	GSM0808_IE_CIRCUIT_IDENTITY_CODE_LIST	= 30,
	GSM0808_IE_DIAGNOSTIC			= 31,
	GSM0808_IE_LAYER_3_MESSAGE_CONTENTS	= 32,
	GSM0808_IE_CHOSEN_CHANNEL		= 33,
	GSM0808_IE_TOTAL_RESOURCE_ACCESSIBLE	= 34,
	GSM0808_IE_CIPHER_RESPONSE_MODE		= 35,
	GSM0808_IE_CHANNEL_NEEDED		= 36,
	GSM0808_IE_TRACE_TYPE			= 37,
	GSM0808_IE_TRIGGERID			= 38,
	GSM0808_IE_TRACE_REFERENCE		= 39,
	GSM0808_IE_TRANSACTIONID		= 40,
	GSM0808_IE_MOBILE_IDENTITY		= 41,
	GSM0808_IE_OMCID			= 42,
	GSM0808_IE_FORWARD_INDICATOR		= 43,
	GSM0808_IE_CHOSEN_ENCR_ALG		= 44,
	GSM0808_IE_CIRCUIT_POOL			= 45,
	GSM0808_IE_CIRCUIT_POOL_LIST		= 46,
	GSM0808_IE_TIME_INDICATION		= 47,
	GSM0808_IE_RESOURCE_SITUATION		= 48,
	GSM0808_IE_CURRENT_CHANNEL_TYPE_1	= 49,
	GSM0808_IE_QUEUEING_INDICATOR		= 50,
	GSM0808_IE_SPEECH_VERSION		= 64,
	GSM0808_IE_ASSIGNMENT_REQUIREMENT	= 51,
	GSM0808_IE_TALKER_FLAG			= 53,
	GSM0808_IE_CONNECTION_RELEASE_RQSTED	= 54,
	GSM0808_IE_GROUP_CALL_REFERENCE		= 55,
	GSM0808_IE_EMLPP_PRIORITY		= 56,
	GSM0808_IE_CONFIG_EVO_INDI		= 57,
	GSM0808_IE_OLD_BSS_TO_NEW_BSS_INFORMATION	= 58,
	GSM0808_IE_LSA_IDENTIFIER		= 59,
	GSM0808_IE_LSA_IDENTIFIER_LIST		= 60,
	GSM0808_IE_LSA_INFORMATION		= 61,
	GSM0808_IE_LCS_QOS			= 62,
	GSM0808_IE_LSA_ACCESS_CTRL_SUPPR	= 63,
	GSM0808_IE_LCS_PRIORITY			= 67,
	GSM0808_IE_LOCATION_TYPE		= 68,
	GSM0808_IE_LOCATION_ESTIMATE		= 69,
	GSM0808_IE_POSITIONING_DATA		= 70,
	GSM0808_IE_LCS_CAUSE			= 71,
	GSM0808_IE_LCS_CLIENT_TYPE		= 72,
	GSM0808_IE_APDU				= 73,
	GSM0808_IE_NETWORK_ELEMENT_IDENTITY	= 74,
	GSM0808_IE_GPS_ASSISTANCE_DATA		= 75,
	GSM0808_IE_DECIPHERING_KEYS		= 76,
	GSM0808_IE_RETURN_ERROR_RQST		= 77,
	GSM0808_IE_RETURN_ERROR_CAUSE		= 78,
	GSM0808_IE_SEGMENTATION			= 79,
	GSM0808_IE_SERVICE_HANDOVER		= 80,
	GSM0808_IE_SOURCE_RNC_TO_TARGET_RNC_TRANSPARENT_UMTS	= 81,
	GSM0808_IE_SOURCE_RNC_TO_TARGET_RNC_TRANSPARENT_CDMA2000= 82,
	GSM0808_IE_RESERVED_5			= 65,
	GSM0808_IE_RESERVED_6			= 66,
	GSM0808_IE_GERAN_CLASSMARK		= 0x53,
	GSM0808_IE_GERAN_BSC_CONTAINER		= 0x54,
	GSM0808_IE_NEW_BSS_TO_OLD_BSS_INFO	= 0x61,
	GSM0800_IE_INTER_SYSTEM_INFO		= 0x63,
	GSM0808_IE_SNA_ACCESS_INFO		= 0x64,
	GSM0808_IE_VSTK_RAND_INFO		= 0x65,
	GSM0808_IE_VSTK_INFO			= 0x66,
	GSM0808_IE_PAGING_INFO			= 0x67,
	GSM0808_IE_IMEI				= 0x68,
	GSM0808_IE_VELOCITY_ESTIMATE		= 0x55,
	GSM0808_IE_VGCS_FEATURE_FLAGS		= 0x69,
	GSM0808_IE_TALKER_PRIORITY		= 0x6a,
	GSM0808_IE_EMERGENCY_SET_INDICATION	= 0x6b,
	GSM0808_IE_TALKER_IDENTITY		= 0x6c,
	GSM0808_IE_CELL_ID_LIST_SEGMENT		= 0x6d,
	GSM0808_IE_SMS_TO_VGCS			= 0x6e,
	GSM0808_IE_VGCS_TALKER_MODE		= 0x6f,
	GSM0808_IE_VGCS_VBS_CELL_STATUS		= 0x70,
	GSM0808_IE_CELL_ID_LIST_SEG_EST_CELLS	= 0x71,
	GSM0808_IE_CELL_ID_LIST_SEG_CELLS_TBE	= 0x72,
	GSM0808_IE_CELL_ID_LIST_SEG_REL_CELLS	= 0x73,
	GSM0808_IE_CELL_ID_LIST_SEG_NE_CELLS	= 0x74,
	GSM0808_IE_GANSS_ASSISTANCE_DATA	= 0x75,
	GSM0808_IE_GANSS_POSITIONING_DATA	= 0x76,
	GSM0808_IE_GANSS_LOCATION_TYPE		= 0x77,
	GSM0808_IE_APP_DATA			= 0x78,
	GSM0808_IE_DATA_IDENTITY		= 0x79,
	GSM0808_IE_APP_DATA_INFO		= 0x7a,
	GSM0808_IE_MSISDN			= 0x7b,
	GSM0808_IE_AOIP_TRASP_ADDR		= 0x7c,
	GSM0808_IE_SPEECH_CODEC_LIST		= 0x7d,
	GSM0808_IE_SPEECH_CODEC			= 0x7e,
	GSM0808_IE_CALL_ID			= 0x7f,
	GSM0808_IE_CALL_ID_LIST			= 0x80,
	GSM0808_IE_A_IF_SEL_FOR_RESET		= 0x81,
	GSM0808_IE_KC_128			= 0x83,
	GSM0808_IE_CSG_IDENTIFIER		= 0x84,
	GSM0808_IE_REDIR_ATTEMPT_FLAG		= 0x85,
	GSM0808_IE_REROUTE_REJ_CAUSE		= 0x86,
	GSM0808_IE_SEND_SEQ_NUM			= 0x87,
	GSM0808_IE_REROUTE_COMPL_OUTCOME	= 0x88,
	GSM0808_IE_GLOBAL_CALL_REF		= 0x89,
	GSM0808_IE_LCLS_CONFIG			= 0x8a,
	GSM0808_IE_LCLS_CONN_STATUS_CTRL	= 0x8b,
	GSM0808_IE_LCLS_CORR_NOT_NEEDED		= 0x8c,
	GSM0808_IE_LCLS_BSS_STATUS		= 0x8d,
	GSM0808_IE_LCLS_BREAK_REQ		= 0x8e,
	GSM0808_IE_CSFB_INDICATION		= 0x8f,
	GSM0808_IE_CS_TO_PS_SRVCC		= 0x90,
	GSM0808_IE_SRC_ENB_TO_TGT_ENB_TRANSP	= 0x91,
	GSM0808_IE_CS_TO_PS_SRVCC_IND		= 0x92,
	GSM0808_IE_CN_TO_MS_TRANSP_INFO		= 0x93,
	GSM0808_IE_SELECTED_PLMN_ID		= 0x94,
	GSM0808_IE_LAST_USED_EUTRAN_PLMN_ID	= 0x95,
	GSM0808_IE_OLD_LAI			= 0x96,
	GSM0808_IE_ATTACH_INDICATOR		= 0x97,
	GSM0808_IE_SELECTED_OPERATOR		= 0x98,
	GSM0808_IE_PS_REGISTERED_OPERATOR	= 0x99,
	GSM0808_IE_CS_REGISTERED_OPERATOR	= 0x9a,

	/* Osmocom extensions: */
	GSM0808_IE_OSMO_OSMUX_SUPPORT		= 0xf0,
	GSM0808_IE_OSMO_OSMUX_CID		= 0xf1,
};

/* 3GPP TS 48.008 3.2.3 Signalling Field Element Coding */
enum GSM0808_SIGNALLING_FIELD_ELEMENT_CODING {
	GSM0808_FE_IE_EXTRA_INFORMATION = 0x01, /*< 3.2.3.1  */
	GSM0808_FE_IE_CURRENT_CHANNEL_TYPE_2 = 0x02, /*< 3.2.3.2  */
	GSM0808_FE_IE_TARGET_CELL_RADIO_INFORMATION = 0x03, /*< 3.2.3.3  */
	GSM0808_FE_IE_GPRS_SUSPEND_INFORMATION = 0x04, /*< 3.2.3.4  */
	GSM0808_FE_IE_MULTIRATE_CONFIGURATION_INFORMATION = 0x05, /*< 3.2.3.5  */
	GSM0808_FE_IE_DUAL_TRANSFER_MODE_INFORMATION = 0x06, /*< 3.2.3.6  */
	GSM0808_FE_IE_INTER_RAT_HANDOVER_INFO = 0x07, /*< 3.2.3.7  */
	GSM0808_FE_IE_CDMA2000_CAPABILITY_INFORMATION = 0x08, /*< 3.2.3.8  */
	GSM0808_FE_IE_DOWNLINK_CELL_LOAD_INFORMATION = 0x09, /*< 3.2.3.9  */
	GSM0808_FE_IE_UPLINK_CELL_LOAD_INFORMATION = 0x0a, /*< 3.2.3.10 */
	GSM0808_FE_IE_CELL_LOAD_INFORMATION_GROUP = 0x0b, /*< 3.2.3.11 */
	GSM0808_FE_IE_CELL_LOAD_INFORMATION = 0x0c, /*< 3.2.3.12 */
	GSM0808_FE_IE_PS_INDICATION = 0x0d, /*< 3.2.3.13 */
	GSM0808_FE_IE_DTM_HANDOVER_COMMAND_INDICATION = 0x0e, /*< 3.2.3.14 */
	GSM0808_FE_IE_D_RNTI = 0xfe, /*< 3.2.3.15 */
	GSM0808_FE_IE_IRAT_MEASUREMENT_CONFIGURATION = 0x0f, /*< 3.2.3.16 */
	GSM0808_FE_IE_SOURCE_CELL_ID = 0x10, /*< 3.2.3.17 */
	GSM0808_FE_IE_IRAT_MEASUREMENT_CONFIGURATION_EXTENDED_E_ARFCNS = 0x11, /*< 3.2.3.18 */
};

/* 3GPP TS 48.008 3.2.2.5 Cause */
enum gsm0808_cause {
	GSM0808_CAUSE_RADIO_INTERFACE_MESSAGE_FAILURE			= 0,
	GSM0808_CAUSE_RADIO_INTERFACE_FAILURE				= 1,
	GSM0808_CAUSE_UPLINK_QUALITY					= 2,
	GSM0808_CAUSE_UPLINK_STRENGTH					= 3,
	GSM0808_CAUSE_DOWNLINK_QUALITY					= 4,
	GSM0808_CAUSE_DOWNLINK_STRENGTH					= 5,
	GSM0808_CAUSE_DISTANCE						= 6,
	GSM0808_CAUSE_O_AND_M_INTERVENTION				= 7,
	GSM0808_CAUSE_RESPONSE_TO_MSC_INVOCATION			= 8,
	GSM0808_CAUSE_CALL_CONTROL					= 9,
	GSM0808_CAUSE_RADIO_INTERFACE_FAILURE_REVERSION			= 10,
	GSM0808_CAUSE_HANDOVER_SUCCESSFUL				= 11,
	GSM0808_CAUSE_BETTER_CELL					= 12,
	GSM0808_CAUSE_DIRECTED_RETRY					= 13,
	GSM0808_CAUSE_JOINED_GROUP_CALL_CHANNEL				= 14,
	GSM0808_CAUSE_TRAFFIC						= 15,
	GSM0808_CAUSE_REDUCE_LOAD_IN_SERVING_CELL			= 0x10,
	GSM0808_CAUSE_TRAFFIC_LOAD_IN_TGT_HIGHER_THAN_IN_SRC_CELL	= 0x11,
	GSM0808_CAUSE_RELOCATION_TRIGGERED				= 0x12,
	GSM0808_CAUSE_REQUESTED_OPT_NOT_AUTHORISED			= 0x14,
	GSM0808_CAUSE_ALT_CHAN_CONFIG_REQUESTED				= 0x15,
	GSM0808_CAUSE_RESP_TO_INT_HO_ENQ_MSG				= 0x16,
	GSM0808_CAUSE_INT_HO_ENQUIRY_REJECT				= 0x17,
	GSM0808_CAUSE_REDUNDANCY_LEVEL_NOT_ADEQUATE			= 0x18,
	GSM0808_CAUSE_EQUIPMENT_FAILURE					= 32,
	GSM0808_CAUSE_NO_RADIO_RESOURCE_AVAILABLE			= 33,
	GSM0808_CAUSE_RQSTED_TERRESTRIAL_RESOURCE_UNAVAILABLE	= 34,
	GSM0808_CAUSE_CCCH_OVERLOAD					= 35,
	GSM0808_CAUSE_PROCESSOR_OVERLOAD				= 36,
	GSM0808_CAUSE_BSS_NOT_EQUIPPED					= 37,
	GSM0808_CAUSE_MS_NOT_EQUIPPED					= 38,
	GSM0808_CAUSE_INVALID_CELL					= 39,
	GSM0808_CAUSE_TRAFFIC_LOAD					= 40,
	GSM0808_CAUSE_PREEMPTION					= 41,
	GSM0808_CAUSE_DTM_HO_SGSN_FAILURE				= 0x2a,
	GSM0808_CAUSE_DTM_HO_PS_ALLOC_FAILURE				= 0x2b,
	GSM0808_CAUSE_RQSTED_TRANSCODING_RATE_ADAPTION_UNAVAILABLE	= 48,
	GSM0808_CAUSE_CIRCUIT_POOL_MISMATCH				= 49,
	GSM0808_CAUSE_SWITCH_CIRCUIT_POOL				= 50,
	GSM0808_CAUSE_RQSTED_SPEECH_VERSION_UNAVAILABLE		= 51,
	GSM0808_CAUSE_LSA_NOT_ALLOWED					= 52,
	GSM0808_CAUSE_REQ_CODEC_TYPE_OR_CONFIG_UNAVAIL			= 0x35,
	GSM0808_CAUSE_REQ_A_IF_TYPE_UNAVAIL				= 0x36,
	GSM0808_CAUSE_INVALID_CSG_CELL					= 0x37,
	GSM0808_CAUSE_REQ_REDUND_LEVEL_NOT_AVAIL			= 0x3f,
	GSM0808_CAUSE_CIPHERING_ALGORITHM_NOT_SUPPORTED			= 64,
	GSM0808_CAUSE_GERAN_IU_MODE_FAILURE				= 0x41,
	GSM0808_CAUSE_INC_RELOC_NOT_SUPP_DT_PUESBINE_FEATURE		= 0x42,
	GSM0808_CAUSE_ACCESS_RESTRICTED_DUE_TO_SHARED_NETWORKS		= 0x43,
	GSM0808_CAUSE_REQ_CODEC_TYPE_OR_CONFIG_NOT_SUPP			= 0x44,
	GSM0808_CAUSE_REQ_A_IF_TYPE_NOT_SUPP				= 0x45,
	GSM0808_CAUSE_REQ_REDUND_LVL_NOT_SUPP				= 0x46,
	GSM0808_CAUSE_TERRESTRIAL_CIRCUIT_ALREADY_ALLOCATED		= 80,
	GSM0808_CAUSE_INVALID_MESSAGE_CONTENTS				= 81,
	GSM0808_CAUSE_INFORMATION_ELEMENT_OR_FIELD_MISSING		= 82,
	GSM0808_CAUSE_INCORRECT_VALUE					= 83,
	GSM0808_CAUSE_UNKNOWN_MESSAGE_TYPE				= 84,
	GSM0808_CAUSE_UNKNOWN_INFORMATION_ELEMENT			= 85,
	GSM0808_CAUSE_DTM_HO_INVALID_PS_IND				= 0x56,
	GSM0808_CAUSE_CALL_ID_ALREADY_ALLOC				= 0x57,
	GSM0808_CAUSE_PROTOCOL_ERROR_BETWEEN_BSS_AND_MSC		= 96,
	GSM0808_CAUSE_VGCS_VBS_CALL_NON_EXISTENT			= 0x61,
	GSM0808_CAUSE_DTM_HO_TIMER_EXPIRY				= 0x62,
};

/* 3GPP TS 08.08 §3.2.2.5 Cause Class */
enum gsm0808_cause_class {
	GSM0808_CAUSE_CLASS_NORM0		= 0,
	GSM0808_CAUSE_CLASS_NORM1		= 1,
	GSM0808_CAUSE_CLASS_RES_UNAVAIL		= 2,
	GSM0808_CAUSE_CLASS_SRV_OPT_NA		= 3,
	GSM0808_CAUSE_CLASS_SRV_OPT_NIMPL	= 4,
	GSM0808_CAUSE_CLASS_INVAL		= 5,
	GSM0808_CAUSE_CLASS_PERR		= 6,
	GSM0808_CAUSE_CLASS_INTW		= 7,
};

/* GSM 08.08 3.2.2.11 Channel Type */
enum gsm0808_chan_indicator {
	GSM0808_CHAN_SPEECH = 1,
	GSM0808_CHAN_DATA   = 2,
	GSM0808_CHAN_SIGN   = 3,
};

/* GSM 08.08 3.2.2.11 Channel Type */
enum gsm0808_chan_rate_type_data {
	GSM0808_DATA_FULL_BM	= 0x8,
	GSM0808_DATA_HALF_LM	= 0x9,
	GSM0808_DATA_FULL_RPREF	= 0xa,
	GSM0808_DATA_HALF_PREF	= 0xb,
	GSM0808_DATA_FULL_PREF_NO_CHANGE	= 0x1a,
	GSM0808_DATA_HALF_PREF_NO_CHANGE	= 0x1b,
	GSM0808_DATA_MULTI_MASK	= 0x20,
	GSM0808_DATA_MULTI_MASK_NO_CHANGE	= 0x30,
};

/* GSM 08.08 3.2.2.11 Channel Type */
enum gsm0808_chan_rate_type_speech {
	GSM0808_SPEECH_FULL_BM	= 0x8,
	GSM0808_SPEECH_HALF_LM	= 0x9,
	GSM0808_SPEECH_FULL_PREF= 0xa,
	GSM0808_SPEECH_HALF_PREF= 0xb,
	GSM0808_SPEECH_FULL_PREF_NO_CHANGE	= 0x1a,
	GSM0808_SPEECH_HALF_PREF_NO_CHANGE	= 0x1b,
	GSM0808_SPEECH_PERM	= 0xf,
	GSM0808_SPEECH_PERM_NO_CHANGE = 0x1f,
};

/* GSM 08.08 3.2.2.11 Channel Type */
enum gsm0808_chan_rate_type_sign {
	GSM0808_SIGN_ANY                 = 0x00,
	GSM0808_SIGN_SDCCH               = 0x01,
	GSM0808_SIGN_SDCCH_FULL_BM       = 0x02,
	GSM0808_SIGN_SDCCH_HALF_LM       = 0x03,
	GSM0808_SIGN_FULL_BM             = 0x08,
	GSM0808_SIGN_HALF_LM             = 0x09,
	GSM0808_SIGN_FULL_PREF           = 0x0a,
	GSM0808_SIGN_HALF_PREF           = 0x0b,
	GSM0808_SIGN_FULL_PREF_NO_CHANGE = 0x1a,
	GSM0808_SIGN_HALF_PREF_NO_CHANGE = 0x1b,
};

/*! GSM 08.08 3.2.2.11 Channel Type
 *  (see also 3GPP TS 48.008, section 3.2.2.11) */
enum gsm0808_permitted_speech {
	GSM0808_PERM_FR1	= 0x01, /*!< GSM FR */
	GSM0808_PERM_FR2	= 0x11, /*!< GSM EFR */
	GSM0808_PERM_FR3	= 0x21, /*!< FR AMR */
	GSM0808_PERM_FR4	= 0x41, /*!< OFR AMR-WB */
	GSM0808_PERM_FR5	= 0x42, /*!< FR AMR-WB */
	GSM0808_PERM_HR1	= GSM0808_PERM_FR1 | 0x4, /*!< GSM HR */
	GSM0808_PERM_HR2	= GSM0808_PERM_FR2 | 0x4, /*!< (deprecated) */
	GSM0808_PERM_HR3	= GSM0808_PERM_FR3 | 0x4, /*!< HR AMR */
	GSM0808_PERM_HR4	= 0x46, /*!< OHR AMR-WB */
	GSM0808_PERM_HR6	= 0x45, /*!< OHR AMR */
};

extern const struct value_string gsm0808_permitted_speech_names[];
static inline const char *gsm0808_permitted_speech_name(enum gsm0808_permitted_speech val)
{ return get_value_string(gsm0808_permitted_speech_names, val); }

/*! 3GPP TS 48.008, 3.2.2.103 Speech Codec Type */
enum gsm0808_speech_codec_type {
	GSM0808_SCT_FR1	= 0x0, /*!< GSM FR */
	GSM0808_SCT_FR2	= 0x2, /*!< GSM EFR */
	GSM0808_SCT_FR3	= 0x3, /*!< FR AMR */
	GSM0808_SCT_FR4	= 0xc, /*!< OFR AMR-WB */
	GSM0808_SCT_FR5	= 0x9, /*!< FR AMR-WB */
	GSM0808_SCT_HR1	= 0x1, /*!< GSM_HR */
	GSM0808_SCT_HR3	= 0x4, /*!< HR_AMR */
	GSM0808_SCT_HR4	= 0xd, /*!< OHR AMR-WB */
	GSM0808_SCT_HR6	= 0xb, /*!< OHR AMR */
	GSM0808_SCT_CSD	= 0xfd, /*!< CSData (see also TS 26.103) */
};

extern const struct value_string gsm0808_speech_codec_type_names[];
static inline const char *gsm0808_speech_codec_type_name(enum gsm0808_speech_codec_type val)
{ return get_value_string(gsm0808_speech_codec_type_names, val); }

/* GSM 08.08 3.2.2.44 Chosen Encryption Algorithm */
enum gsm0808_chosen_enc_alg {
	GSM0808_ALG_ID_A5_0	= 0x01,
	GSM0808_ALG_ID_A5_1	= 0x02,
	GSM0808_ALG_ID_A5_2	= 0x03,
	GSM0808_ALG_ID_A5_3	= 0x04,
	GSM0808_ALG_ID_A5_4	= 0x05,
	GSM0808_ALG_ID_A5_5	= 0x06,
	GSM0808_ALG_ID_A5_6	= 0x07,
	GSM0808_ALG_ID_A5_7	= 0x08,
};
extern const struct value_string gsm0808_chosen_enc_alg_names[];

/* GSM 08.08 3.2.2.85 Paging Information */
enum gsm0808_paging_info {
	GSM0808_PAGINF_FOR_MT_CALL	= 0x00,
	GSM0808_PAGINF_FOR_SMS		= 0x01,
	GSM0808_PAGINF_FOR_USSD		= 0x02,
};

/*! 3GPP TS 48.008 3.2.2.104 Speech Codec */
struct gsm0808_speech_codec {
	bool fi;
	bool pi;
	bool pt;
	bool tf;
	/*! enum gsm0808_speech_codec_type. */
	uint8_t type;
	/*! See for example enum gsm0808_speech_codec_defaults. */
	uint16_t cfg;
};

/*! Default speech codec configurations: Some codecs specified with
 *  struct gsm0808_speech_codec, require a configuration (cfg). The following
 *  default configuration will configure the codec (RTP) to match the
 *  configuration that is used on the air interface (Um).
 *
 *  Default values for FR_AMR, HR_AMR and OHR_AMR:
 *  See also: 3GPP TS 28.062, Table 7.11.3.1.3-2: Preferred Configurations for
 *  the Adaptive Multi-Rate Codec Types and 3GPP TS 48.008, Section 3.2.2.103.
 *
 *  Default values for FR_AMR_WB, OFR_AMR_WB and OHR_AMR_WB:
 *  See also: 3GPP TS 26.103, Table 5.7-1: Allowed Configurations
 *  for the Adaptive Multi-Rate - Wideband Codec Types */
enum gsm0808_speech_codec_defaults {
	GSM0808_SC_CFG_DEFAULT_FR_AMR		= 0x57ff,
	GSM0808_SC_CFG_DEFAULT_HR_AMR		= 0x073f,
	GSM0808_SC_CFG_DEFAULT_OHR_AMR		= 0x57ff,
	GSM0808_SC_CFG_DEFAULT_FR_AMR_WB	= 0x01,
	GSM0808_SC_CFG_DEFAULT_OFR_AMR_WB	= 0x15,
	GSM0808_SC_CFG_DEFAULT_OHR_AMR_WB	= 0x01,
};

/*! Default speech codec configurations broken down by reate.
 *  See also: 3GPP TS 28.062, Table 7.11.3.1.3-2: Preferred Configurations for
 *  the Adaptive Multi-Rate Codec Types. */
enum gsm0808_speech_codec_rate_defaults {
	GSM0808_SC_CFG_DEFAULT_AMR_4_75 = 0xff03,
	GSM0808_SC_CFG_DEFAULT_AMR_5_15 = 0x0000,
	GSM0808_SC_CFG_DEFAULT_AMR_5_90 = 0xff06,
	GSM0808_SC_CFG_DEFAULT_AMR_6_70 = 0x3e08,
	GSM0808_SC_CFG_DEFAULT_AMR_7_40 = 0x0c12,
	GSM0808_SC_CFG_DEFAULT_AMR_7_95 = 0xc020,
	GSM0808_SC_CFG_DEFAULT_AMR_10_2 = 0x3040,
	GSM0808_SC_CFG_DEFAULT_AMR_12_2 = 0xc082
};

/*! Single speech codec configurations broken down by reate.
 *  See also: 3GPP TS 28.062, Table 7.11.3.1.3-2: Preferred Configurations for
 *  the Adaptive Multi-Rate Codec Types. */
enum gsm0808_speech_codec_rate {
	GSM0808_SC_CFG_AMR_4_75 = 0x0001,
	GSM0808_SC_CFG_AMR_4_75_5_90_7_40_12_20 = 0x0002,
	GSM0808_SC_CFG_AMR_5_90 = 0x0004,
	GSM0808_SC_CFG_AMR_6_70 = 0x0008,
	GSM0808_SC_CFG_AMR_7_40 = 0x0010,
	GSM0808_SC_CFG_AMR_7_95 = 0x0020,
	GSM0808_SC_CFG_AMR_10_2 = 0x0040,
	GSM0808_SC_CFG_AMR_12_2 = 0x0080,
};

/* 3GPP TS 48.008 3.2.2.103 Speech Codec List */
#define SPEECH_CODEC_MAXLEN 255
struct gsm0808_speech_codec_list {
	struct gsm0808_speech_codec codec[SPEECH_CODEC_MAXLEN];
	uint8_t len;
};

/* 3GPP TS 48.008 3.2.2.11 Channel Type */
#define CH_TYPE_PERM_SPCH_MAXLEN 9
struct gsm0808_channel_type {
	uint8_t ch_indctr;
	uint8_t ch_rate_type;
	uint8_t perm_spch[CH_TYPE_PERM_SPCH_MAXLEN];
	unsigned int perm_spch_len;
};

/* 3GPP TS 48.008 3.2.2.10 Encryption Information */
#define ENCRY_INFO_KEY_MAXLEN 252
#define ENCRY_INFO_PERM_ALGO_MAXLEN 8
struct gsm0808_encrypt_info {
	uint8_t perm_algo[ENCRY_INFO_PERM_ALGO_MAXLEN];
	unsigned int perm_algo_len;
	uint8_t key[ENCRY_INFO_KEY_MAXLEN];
	unsigned int key_len;
};

#define CELL_ID_LIST_LAC_MAXLEN 127
/*!
 * DEPRECATED: This definition of the cell identifier list is
 * insufficient. It cannot support all types of cell identifiers.
 * Use struct gsm0808_cell_id_list2 in gsm0808_utils.h instead.
 *
 * 3GPP TS 48.008 3.2.2.27 Cell Identifier List */
struct gsm0808_cell_id_list {
	uint8_t id_discr;
	uint16_t id_list_lac[CELL_ID_LIST_LAC_MAXLEN];
	unsigned int id_list_len;
};

/* TS 48.008 3.2.2.116 */
enum gsm0808_lcls_config {
	GSM0808_LCLS_CFG_BOTH_WAY					= 0x00,
	GSM0808_LCLS_CFG_BOTH_WAY_AND_BICAST_UL				= 0x01,
	GSM0808_LCLS_CFG_BOTH_WAY_AND_SEND_DL				= 0x02,
	GSM0808_LCLS_CFG_BOTH_WAY_AND_SEND_DL_BLOCK_LOCAL_DL		= 0x03,
	GSM0808_LCLS_CFG_BOTH_WAY_AND_BICAST_UL_SEND_DL			= 0x04,
	GSM0808_LCLS_CFG_BOTH_WAY_AND_BICAST_UL_SEND_DL_BLOCK_LOCAL_DL	= 0x05,
	GSM0808_LCLS_CFG_NA						= 0xFF
};

/* TS 48.008 3.2.2.117 */
enum gsm0808_lcls_control {
	GSM0808_LCLS_CSC_CONNECT					= 0x00,
	GSM0808_LCLS_CSC_DO_NOT_CONNECT					= 0x01,
	GSM0808_LCLS_CSC_RELEASE_LCLS					= 0x02,
	GSM0808_LCLS_CSC_BICAST_UL_AT_HANDOVER				= 0x03,
	GSM0808_LCLS_CSC_BICAST_UL_AND_RECV_DL_AT_HANDOVER		= 0x04,
	GSM0808_LCLS_CSC_NA						= 0xFF
};

/* TS 48.008 3.2.2.119 */
enum gsm0808_lcls_status {
	GSM0808_LCLS_STS_NOT_YET_LS		= 0x00,
	GSM0808_LCLS_STS_NOT_POSSIBLE_LS	= 0x01,
	GSM0808_LCLS_STS_NO_LONGER_LS		= 0x02,
	GSM0808_LCLS_STS_REQ_LCLS_NOT_SUPP	= 0x03,
	GSM0808_LCLS_STS_LOCALLY_SWITCHED	= 0x04,
	GSM0808_LCLS_STS_NA			= 0xFF
};