My 102 232-1 notes

102 232-1 specifies the general aspects of HI2 and HI3 interfaces for handover via IP based networks.

102 232-1 document:

• specifies the modular approach used for specifying IP based handover interfaces;
• specifies the header(s) to be added to IRI and CC sent over the HI2 and HI3 interfaces respectively;
• specifies protocols for the transfer of IRI and CC across the handover interfaces;
• specifies protocol profiles for the handover interface.

3GPP TS 33.128 V18.0.0 specifies to use ETSI TS 102 232-1 and ETSI TS 102 232-7 for LI_HI2 and LI_HI3 (reference Table 4.3-1)

ASN.1

LI-PS-PDU
{itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2) li-ps(5) genHeader(1) version38(38)}

DEFINITIONS IMPLICIT TAGS ::=

BEGIN

IMPORTS
    -- Any of the IMPORTs may be commented out if they are not used (see clause A.3)

    -- from ETSI TS 103 280 [44]
    LIID
        FROM Common-Parameters
        {itu-t(0) identified-organization(4) etsi(0) common-parameters(3280) version251(251)}


    -- previously from ETSI TS 101 671 [4]; now provided with this specification
    IRI-Parameters,
    IRIsContent,
    Location,
    Network-Element-Identifier
        FROM HI2Operations
        {itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2) hi2(1) version18(18)}

    -- previously from ETSI TS 101 671 [4]; now provided with this specification
    HI1-Operation
        FROM HI1NotificationOperations
        {itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2) hi1(0) notificationOperations(1) version7(7)}

    -- from ETSI TS 102 232-2 [5]
    EmailCC,
    EmailIRI,
    MessagingCC,
    MessagingMMCC,
    MessagingIRI
        FROM EmailPDU
        {itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2) li-ps(5) email(2) version20(20)}

    -- from ETSI TS 102 232-3 [6]
    IPCC,
    IPIRI,
    IPIRIOnly,
    IPIRIPacketReport
        FROM IPAccessPDU
        {itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2) li-ps(5) iPAccess(3) version17(17)}

    -- from ETSI TS 102 232-4 [32]
    L2CC,
    L2IRI,
    L2IRIOnly
        FROM L2AccessPDU
        {itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2) li-ps(5) l2Access(4) version9(9)}

    -- from ETSI TS 102 232-5 [37]
    IPMMCC,
    IPMMIRI
        FROM IPMultimediaPDU
        {itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2) li-ps(5) iPMultimedia(5) version16(16)}

    -- from ETSI TS 102 232-6 [36]
    PstnIsdnCC,
    PstnIsdnIRI
        FROM PstnIsdnPDU
        {itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2) li-ps(5) pstnIsdn(6) version6(6)}

    -- from 3GPP TS 33.108 [9]
    IRI-Parameters,
    UmtsIRIsContent,
    CorrelationValues,
    Location
        FROM UmtsHI2Operations
        {itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2) threeGPP(4) hi2(1)}
            -- The relevant module (including the 3GPP release and version number) needs
            -- to be chosen when compiling the application.

    -- from 3GPP TS 33.108 [9]
    IRI-Parameters,
    UmtsCS-IRIsContent
        FROM UmtsCS-HI2Operations
        {itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2) threeGPP(4) hi2CS(3)}
            -- The relevant module (including the 3GPP release and version number) needs
            -- to be chosen when compiling the application.

    -- from 3GPP TS 33.108 [9]
    IRI-Parameters,
    EpsIRIsContent,
    EPSLocation
        FROM EpsHI2Operations
        {itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2) threeGPP(4) hi2eps(8)}
            -- The relevant module (including the 3GPP release and version number) needs
            -- to be chosen when compiling the application.

    -- from 3GPP TS 33.108 [9]
    IRI-Parameters,
    ConfIRIsContent
        FROM CONFHI2Operations
        {itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2) threeGPP(4) hi2conf(10)}
            -- The relevant module (including the 3GPP release and version number) needs
            -- to be chosen when compiling the application.

    -- from 3GPP TS 33.108 [9]
    IRI-Parameters,
    ProSeIRIsContent
        FROM ProSeHI2Operations
        {itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2) threeGPP(4) hi2prose (15)}
            -- The relevant module (including the 3GPP release and version number) needs
            -- to be chosen when compiling the application.

    -- from 3GPP TS 33.108 [9]
    IRI-Parameters,
    GcseIRIsContent
        FROM GCSEHI2Operations
        {itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2) threeGPP(4) hi2gcse(13)}
            -- The relevant module (including the 3GPP release and version number) needs
            -- to be chosen when compiling the application.

    -- from 3GPP TS 33.108 [9]
    CC-PDU
        FROM Umts-HI3-PS
        {itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulintercept(2) threeGPP(4) hi3(2)}
            -- The relevant module (including the 3GPP release and version number)
            -- needs to be chosen when compiling the application.

    -- from 3GPP TS 33.108 [9]
    CC-PDU
        FROM Eps-HI3-PS
        {itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulintercept(2) threeGPP(4) hi3eps(9)}
            -- The relevant module (including the 3GPP release and version number)
            -- needs to be chosen when compiling the application.

    -- from 3GPP TS 33.108 [9]
    Conf-CC-PDU
        FROM CONF-HI3-IMS
        {itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulintercept(2) threeGPP(4) hi3conf(11)}
            -- The relevant module (including the 3GPP release and version number)
            -- needs to be chosen when compiling the application.

    -- from 3GPP TS 33.108 [9]
    Voip-CC-PDU
        FROM VoIP-HI3-IMS
        {itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulintercept(2) threeGPP(4) hi3voip(12)}
            -- The relevant module (including the 3GPP release and version number)
            -- needs to be chosen when compiling the application.

    -- from 3GPP TS 33.108 [9]
    Gcse-CC-PDU
        FROM GCSE-HI3
        {itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulintercept(2) threeGPP(4) hi3gcse(14)}
            -- The relevant module (including the 3GPP release and version number)
            -- needs to be chosen when compiling the application.

    -- from 3GPP TS 33.108 [9]
    ThreeGPP-HI1-Operation
        FROM ThreeGPP-HI1NotificationOperations
        {itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2) threeGPP(4) hi1(0) notificationOperations(1)}
            -- The relevant module (including the 3GPP release and version number)
            -- needs to be chosen when compiling the application.
            -- TS 101 671 HI1 and 3GPP HI1 are related to the same functionality but are
            -- corresponding to different implementations and exclusive usage each other.
            -- The implementation depends of national regulations or LEA/CSP negotiations.
            -- 3GPP HI1 may be used with other services/networks than 3GPP's one.

    -- from 3GPP TS 33.108 [9]
    CSvoice-CC-PDU
        FROM CSvoice-HI3-IP
        {itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2) threeGPP(4) hi3CSvoice(18)}
            -- The relevant module (including the 3GPP release and version number)
            -- needs to be chosen when compiling the application.
            -- The implementation of the CS domain delivery in IP have to be based on 3GPP TS 33.108 [9].

    -- from ETSI TS 101 909-20-1 [33]
    TARGETACTIVITYMONITOR-1,
    TTRAFFIC,
    CTTRAFFIC
        FROM TS101909201
        {itu-t(0) identified-organization(4) etsi(0) ts101909(1909) part20(20) subpart1(1) interceptVersion(0)}

    -- from ETSI TS 101 909-20-2 [34]
    TARGETACTIVITYMONITOR,
    TTRAFFIC,
    CTTRAFFIC
        FROM TS101909202
        {itu-t(0) identified-organization(4) etsi(0) ts101909(1909) part20(20) subpart2(2) interceptVersion(0)}

    -- from ETSI TS 103 462 [45]
    ILHIPayload
        FROM ILHIPDU
        {itu-t(0) identified-organization(4) etsi(0) securityDomain(2) informationHandover(4) ilhi(0) ilhiPdu(0) version2(2)}
        -- This import is only used for the handover between LEMFs.

    -- from 3GPP TS 33.128 [46]
    LINotificationPayload,
    IRIPayload,
    CCPayload,
    UserLocation
        FROM TS33128Payloads
        {itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2) threeGPP(4) ts33128(19)};
        -- The relevant module (including the 3GPP release and version number)
        -- needs to be chosen when compiling the application.

-- end of IMPORTS

-- =============================
-- Object Identifier Definitions
-- =============================

lawfulInterceptDomainId OBJECT IDENTIFIER ::= {itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2)}

li-psDomainId OBJECT IDENTIFIER ::= {lawfulInterceptDomainId li-ps(5) genHeader(1) version38(38)}

-- ====================
-- Top-level definition
-- ====================

PS-PDU ::= SEQUENCE
{
    pSHeader    [1] PSHeader,
    payload     [2] Payload
}

PSHeader ::= SEQUENCE
{
    li-psDomainId                   [0] OBJECT IDENTIFIER,
    lawfulInterceptionIdentifier    [1] LawfulInterceptionIdentifier,
        -- As of ASN.1 version 26 this parameter is included from ETSI TS 103 280 [44]
    authorizationCountryCode        [2] PrintableString (SIZE (2)) OPTIONAL,
        -- see clause 5.2.3
    communicationIdentifier         [3] CommunicationIdentifier,
    sequenceNumber                  [4] INTEGER (0..4294967295),
    timeStamp                       [5] GeneralizedTime OPTIONAL,
        -- see clause 5.2.6
    ...,
    interceptionPointID             [6] PrintableString (SIZE (1..8)) OPTIONAL,
        -- see clause 5.2.11
    microSecondTimeStamp            [7] MicroSecondTimeStamp OPTIONAL,
    timeStampQualifier              [8] TimeStampQualifier OPTIONAL,
    extendedInterceptionPointID     [9] OCTET STRING (SIZE (1..65535)) OPTIONAL,
        -- see clause 5.2.13
    networkFunctionIdentifier       [10] OCTET STRING (SIZE (1..65535)) OPTIONAL
        -- see clause 5.2.14
}

Payload ::= CHOICE
{
    iRIPayloadSequence      [0] SEQUENCE OF IRIPayload,
    cCPayloadSequence       [1] SEQUENCE OF CCPayload,
        -- Clause 6.2.3 explains how to include more than one payload in the same PDU
    tRIPayload              [2] TRIPayload,
    ...,
    hI1-Operation           [3] HI1NotificationOperations.HI1-Operation,
    encryptionContainer     [4] EncryptionContainer,
    threeGPP-HI1-Operation  [5] ThreeGPP-HI1NotificationOperations.ThreeGPP-HI1-Operation,
        -- This structure may be functionally redundant with hI1-Operation previously from ETSI TS 101 671 [4]
    iLHIPayload             [6] SEQUENCE OF ILHIPDU.ILHIPayload,
        -- For typical use cases see ETSI TS 103 462 [45]
    hI4Payload              [7] SEQUENCE OF HI4Payload
}

TimeStampQualifier ::= ENUMERATED
{
    unknown(0),
    timeOfInterception(1),
    timeOfMediation(2),
    ...,
    timeOfAggregation(3)
}

HI4Payload ::= CHOICE
{
    threeGPP-LI-Notification [1] TS33128Payloads.LINotificationPayload,
    ...
}

-- ====================================
-- Items contained within the PS-Header
-- ====================================

CommunicationIdentifier ::= SEQUENCE
{
    networkIdentifier               [0] NetworkIdentifier,
    communicationIdentityNumber     [1] INTEGER (0..4294967295) OPTIONAL,
        -- in case of transport of HI1 messages not required
        -- Mandatory for CC and IRI, with certain exceptions (see clause 5.2.4)
    deliveryCountryCode             [2] PrintableString (SIZE (2)) OPTIONAL,
        -- see clause 5.2.4
    ...,
    cINExtension                    [3] UmtsHI2Operations.CorrelationValues OPTIONAL
        -- To be used when a single INTEGER is not sufficient to identify
        -- a particular session (see clause 5.2.4)
}

NetworkIdentifier ::= SEQUENCE
{
    operatorIdentifier          [0] OCTET STRING (SIZE(1..16)),
    networkElementIdentifier    [1] OCTET STRING (SIZE(1..16)) OPTIONAL,
    ...,
    eTSI671NEID                 [2] HI2Operations.Network-Element-Identifier OPTIONAL
        -- For network element identifier, use either networkElementIdentifier or eTSI671NEID
}

-- ==========================
-- Definitions for CC Payload
-- ==========================

CCPayload ::= SEQUENCE
{
    payloadDirection        [0] PayloadDirection OPTIONAL,
    timeStamp               [1] GeneralizedTime OPTIONAL,
        -- For aggregated payloads (see clause 6.2.3)
    cCContents              [2] CCContents,
    ...,
    microSecondTimeStamp    [3] MicroSecondTimeStamp OPTIONAL,
        -- For aggregated payloads (see clause 6.2.3)
    timeStampQualifier      [4] TimeStampQualifier OPTIONAL
}

PayloadDirection ::= ENUMERATED
{
    fromTarget(0),
    toTarget(1),
    ...,
    indeterminate(2),
        -- Indication that the direction was indeterminate
    combined(3),
        -- Indication applicable to some services that the traffic is actually a combination
        -- of To and From
    notapplicable(4)
        -- Indication that direction of interceptable service does not make sense
}

CCContents ::= CHOICE
    -- Any of these choices may be commented out if they are not being used, see clause A.3
{
    -- tag [0] deprecated in version15, ETSI TS 102 232-1 V3.3.1 (2013-02)
    emailCC                     [1] EmailPDU.EmailCC,
    iPCC                        [2] IPAccessPDU.IPCC,
    -- tag [3] not used
    uMTSCC                      [4] OCTET STRING,
    ...,
    -- tag [5] deprecated in version15, ETSI TS 102 232-1 V3.3.1 (2013-02)
    l2CC                        [6] L2AccessPDU.L2CC,
    tTRAFFIC-1                  [7] TS101909201.TTRAFFIC,
    cTTRAFFIC-1                 [8] TS101909201.CTTRAFFIC,
    tTRAFFIC-2                  [9] TS101909202.TTRAFFIC,
    cTTRAFFIC-2                 [10] TS101909202.CTTRAFFIC,
    pstnIsdnCC                  [11] PstnIsdnPDU.PstnIsdnCC,
    iPMMCC                      [12] IPMultimediaPDU.IPMMCC,
    -- tag [13] deprecated in version32, ETSI TS 102 232-1 V3.24.1 (2021-07)
    messagingCC                 [14] EmailPDU.MessagingCC,
    ePSCC                       [15] OCTET STRING,
    uMTSCC-CC-PDU               [16] Umts-HI3-PS.CC-PDU,
    ePSCC-CC-PDU                [17] Eps-HI3-PS.CC-PDU,
    messagingMMCC               [18] EmailPDU.MessagingMMCC,
    confCC-CC-PDU               [19] CONF-HI3-IMS.Conf-CC-PDU,
    voipCC-CC-PDU               [20] VoIP-HI3-IMS.Voip-CC-PDU,
    gcseCC-CC-PDU               [21] GCSE-HI3.Gcse-CC-PDU,
    cSvoice-CC-PDU              [22] CSvoice-HI3-IP.CSvoice-CC-PDU,
    threeGPP33128DefinedCC      [23] OCTET STRING (CONTAINING TS33128Payloads.CCPayload)
}

MicroSecondTimeStamp ::= SEQUENCE
{
    seconds         [0] INTEGER (0..18446744073709551615),
        -- number of seconds since 1970-1-1 00:00Z also known as unix time epoch
    microSeconds    [1] INTEGER (0..999999),
    ...
}

-- ===========================
-- Definitions for IRI Payload
-- ===========================

IRIPayload ::= SEQUENCE
{
    iRIType                 [0] IRIType OPTIONAL,
        -- See clause 5.2.10
    timeStamp               [1] GeneralizedTime OPTIONAL,
        -- For aggregated payloads (see clause 6.2.3)
    iRIContents             [2] IRIContents,
    ...,
    microSecondTimeStamp    [3] MicroSecondTimeStamp OPTIONAL,
        -- For aggregated payloads (see clause 6.2.3)
    timeStampQualifier      [4] TimeStampQualifier OPTIONAL,
    sessionDirection        [5] PayloadDirection OPTIONAL,
        -- If the sessionDirection field is to be used for a given service then
        -- the exact meaning and use of the field will be described in the
        -- relevant service-specific details
    payloadDirection        [6] PayloadDirection OPTIONAL
        -- If the payloadDirection field is to be used for a given service then
        -- the exact meaning and use of the field will be described in the
        -- relevant service-specific details
}

IRIType ::= ENUMERATED
{
    iRI-Begin(1),
    iRI-End(2),
    iRI-Continue(3),
    iRI-Report(4)
}

IRIContents ::= CHOICE
    -- Any of these choices may be commented out if they are not being used (see clause A.3)
{
    -- tag [0] deprecated in version15, ETSI TS 102 232-1 V3.3.1 (2013-02)
    emailIRI                    [1] EmailPDU.EmailIRI,
    iPIRI                       [2] IPAccessPDU.IPIRI,
    iPIRIOnly                   [3] IPAccessPDU.IPIRIOnly,
    uMTSIRI                     [4] UMTSIRI,
    eTSI671IRI                  [5] ETSI671IRI,
    ...,
    l2IRI                       [6] L2AccessPDU.L2IRI,
    l2IRIOnly                   [7] L2AccessPDU.L2IRIOnly,
    tARGETACTIVITYMONITOR-1     [8] TS101909201.TARGETACTIVITYMONITOR-1,
    tARGETACTIVITYMONITOR-2     [9] TS101909202.TARGETACTIVITYMONITOR,
    pstnIsdnIRI                 [10] PstnIsdnPDU.PstnIsdnIRI,
    iPMMIRI                     [11] IPMultimediaPDU.IPMMIRI,
    -- tag [12] deprecated in version32, ETSI TS 102 232-1 V3.24.1 (2021-07)
    -- tag [13] deprecated in version32, ETSI TS 102 232-1 V3.24.1 (2021-07)
    messagingIRI                [14] EmailPDU.MessagingIRI,
    ePSIRI                      [15] EPSIRI,
    confIRI                     [16] ConfIRI,
    proseIRI                    [17] ProSeIRI,
    gcseIRI                     [18] GcseIRI,
    threeGPP33128DefinedIRI     [19] OCTET STRING (CONTAINING TS33128Payloads.IRIPayload),
    iPIRIPacketReport           [20] IPAccessPDU.IPIRIPacketReport
}

UMTSIRI ::= CHOICE
    -- This structure may be commented out if not used
{
    iRI-Parameters      [0] UmtsHI2Operations.IRI-Parameters,
    umtsIRIsContent     [1] UmtsHI2Operations.UmtsIRIsContent,
    ...,
    iRI-CS-Parameters   [2] UmtsCS-HI2Operations.IRI-Parameters,
    umtsCS-IRIsContent  [3] UmtsCS-HI2Operations.UmtsCS-IRIsContent
}

ETSI671IRI ::= CHOICE
    -- This structure may be commented out if not used
{
    iRI-Parameters  [0] HI2Operations.IRI-Parameters,
    iRIsContent     [1] HI2Operations.IRIsContent,
    ...
}

EPSIRI ::= CHOICE
    -- This structure may be commented out if not used
{
    iRI-EPS-Parameters  [0] EpsHI2Operations.IRI-Parameters,
    epsIRIsContent      [1] EpsHI2Operations.EpsIRIsContent,
    ...
}

ConfIRI ::= CHOICE
    -- This structure may be commented out if not used
{
    iRI-Conf-Parameters     [0] CONFHI2Operations.IRI-Parameters,
    confIRIsContent         [1] CONFHI2Operations.ConfIRIsContent,
    ...
}


ProSeIRI ::= CHOICE
    -- This structure may be commented out if not used
{
    iRI-ProSe-Parameters    [0] ProSeHI2Operations.IRI-Parameters,
    proseIRIsContent        [1] ProSeHI2Operations.ProSeIRIsContent,
    ...
}


GcseIRI ::= CHOICE
    -- This structure may be commented out if not used
{
    iRI-Gcse-Parameters     [0] GCSEHI2Operations.IRI-Parameters,
    gcseIRIsContent         [1] GCSEHI2Operations.GcseIRIsContent,
    ...
}


-- ===========================
-- Definitions for TRI Payload
-- ===========================

TRIPayload ::= CHOICE
{
    integrityCheck                  [0] IntegrityCheck,
    testPDU                         [1] NULL,
    paddingPDU                      [2] OCTET STRING,
        -- Undefined contents (will be discarded)
    keep-alive                      [3] NULL,
    keep-aliveResponse              [4] NULL,
    firstSegmentFlag                [5] NULL,
    lastSegmentFlag                 [6] NULL,
    ...,
    cINReset                        [7] NULL,
    operatorLeaMessage              [8] OperatorLeaMessage,
    optionRequest                   [9] OptionRequest,
    optionResponse                  [10] OptionResponse,
    optionComplete                  [11] NULL,
    pDUAcknowledgementRequest       [12] NULL,
    pDUAcknowledgementResponse      [13] NULL
}

IntegrityCheck ::= SEQUENCE
{
    includedSequenceNumbers     [0] SEQUENCE OF INTEGER (0..4294967295),
        -- gives the order the PDUs were processed
    checkType                   [1] CheckType,
    dataType                    [2] DataType OPTIONAL,
        -- From version5(5) the dataType is mandatory for hashes and for signatures
        -- (see clause 7.2.3)
    checkValue                  [3] OCTET STRING,
        -- Network byte order
        -- If checkValue contains a signature, the octet string field space may be
        -- used to insert the appropriate ASN.1 DER or BER encoded structure for the
        -- DSS/DSA signature as described in IETF RFC 3279 [43], clause 2.2.2.
    ...,
    hashAlgorithm               [4] HashAlgorithm OPTIONAL,
        -- Clarifies the hash function if checkType is hash(1).
        -- If used, it shall be present for each checkType hash(1).
    signatureAlgorithm          [5] SignatureAlgorithm OPTIONAL
        -- Clarifies the signature algorithm if checkType is signature(2).
        -- If used, it shall be present for each checkType signature(2).
}

CheckType ::= ENUMERATED
{
    hash(1),
        -- hash value
    signature(2),
        -- DSS/DSA signature
    ...
}

DataType ::= ENUMERATED
{
    iRI(1),
    cC(2),
    ...,
    iLHI(3)
}

HashAlgorithm ::= ENUMERATED
{
    sHA-1(1),
        -- Included for legacy/migration purposes only, not to be used for new implementations
    sHA-256(2),
    sHA-384(3),
    sHA-512(4),
    ...
}

SignatureAlgorithm ::= ENUMERATED
{
    dSA(1),
        -- Included for legacy/migration purposes only, not to be used for new implementations
    eCDSA(2),
    edDSA(3),
    ...
}

Option ::= CHOICE
{
    pDUAcknowledgement  [0] NULL,
    ...
}

OptionRequest ::= SEQUENCE
{
    requestedOptions    [0] SEQUENCE OF Option,
    ...
}

OptionResponse ::= SEQUENCE
{
    acceptedOptions     [0] SEQUENCE OF Option,
    declinedOptions     [1] SEQUENCE OF Option,
    ...
}

-- ==================================
-- Definitions for OperatorLeaMessage
-- ==================================

OperatorLeaMessage ::= SEQUENCE
{
    messagePriority     [0] OperatorLeaMessagePriority,
    message             [1] OCTET STRING (SIZE(1..255)),
    ...
}

OperatorLeaMessagePriority ::= ENUMERATED
{
    error(1),
        -- reporting of error conditions that have impact on the quality of the
        -- intercepted data
    informational(2),
        -- reporting of conditions that will not have direct impact on the quality of
        -- the intercepted data
    ...
}

-- ===================================
-- Definitions for EncryptionContainer
-- ===================================

EncryptionContainer ::= SEQUENCE
{
    encryptionType          [0] EncryptionType,
    encryptedPayload        [1] OCTET STRING,
        -- once decrypted, it can be interpreted as EncryptedPayload
    ...,
    encryptedPayloadType    [2] EncryptedPayloadType OPTIONAL
}

EncryptionType ::= ENUMERATED
{
    none(1),
        -- No encryption is applied.
    national-option(2),
        -- Use this option when an encryption scheme is negotiated on a national level
    aES-192-CBC(3),
        -- The Advanced Encryption Standard using a 192 bit key in CBC mode
    aES-256-CBC(4),
        -- The Advanced Encryption Standard using a 256 bit key in CBC mode
    blowfish-192-CBC(5),
        -- Blowfish (www.schneier.com/blowfish.html) using a 192 bit key in CBC mode
    blowfish-256-CBC(6),
        -- Blowfish using a 256 bit key in CBC mode
    threedes-cbc(7),
        -- Triple-DES using a 192 bit key in CBC mode
    ...
}

EncryptedPayload ::= SEQUENCE
{
    byteCounter         [0] INTEGER (0..18446744073709551615),
        -- The sum of the sizes of all PDUs before this PDU.
        -- It is initialized with the unixTime (number of seconds since 01-01-1970)
        -- multiplied by 2^32 at first use.
        -- Where N is sequencenumber of the n-th PDU in transfer, and size(PDU(N))
        -- as defined in annex G:
        --      IF N > 0 THEN
        --      PDU[N].byteCounter = PDU[N-1].byteCounter + size(PDU[N-1])
        --      ELSE
        --      PDU[N].byteCounter = ( unixTime(now) << 32 )
        --      ENDIF
    payload             [1] Payload,
    ...
}

EncryptedPayloadType ::= ENUMERATED
{
    unknown(1),
    part2(2),
        -- encrypted payload is ETSI TS 102 232-2 [5]
    part3(3),
        -- encrypted payload is ETSI TS 102 232-3 [6]
    part4(4),
        -- encrypted payload is ETSI TS 102 232-4 [32]
    part5(5),
        -- encrypted payload is ETSI TS 102 232-5 [37]
    part6(6),
        -- encrypted payload is ETSI TS 102 232-6 [36]
    part7(7),
        -- encrypted payload is ETSI TS 102 232-7 [38]
    ...,
    part1(8)
        -- encrypted payload is ETSI TS 102 232-1 (the present document)
}

-- ===================================
-- Common Parameters
-- ===================================

Location ::= SEQUENCE
    -- This is a common parameter, the use of this parameter is described in clause 4.5
{
    umtsHI2Location             [0] UmtsHI2Operations.Location OPTIONAL,
    epsLocation                 [1] EpsHI2Operations.EPSLocation OPTIONAL,
    ...,
    wlanLocationAttributes      [2] WlanLocationAttributes OPTIONAL,
    eTSI671HI2Location          [3] HI2Operations.Location OPTIONAL,
    threeGPP33128UserLocation   [4] TS33128Payloads.UserLocation OPTIONAL
}

WlanLocationAttributes ::= SEQUENCE
{
    wlanAPMACAddress        [0] OCTET STRING (SIZE(6)) OPTIONAL,
        -- 48-bit (6 octet) MAC address of the WLAN access point derived from the BSSID
    ...
}

IPAddress ::= SEQUENCE
    -- This parameter was previously imported from ETSI TS 101 671 [4] but has been copied
    -- to ETSI TS 102 232-1 (the present document). It is not recommended to use this parameter in
    -- future change requests. Suggested approach is to use a parameter from ETSI TS 103 280 [44]
    -- instead.
{
    iP-type             [1] ENUMERATED
    {
        iPV4(0),
        iPV6(1),
        ...
    },
    iP-value            [2] IP-value,
    iP-assignment       [3] ENUMERATED
    {
        static(1),
            -- The static coding shall be used to report a static address.
        dynamic(2),
            -- The dynamic coding shall be used to report a dynamically allocated address.
        notKnown(3),
            -- The notKnown coding shall be used to report other than static or dynamically
            -- allocated IP addresses.
        ...
    } OPTIONAL,
    ...,
    iPv6PrefixLength    [4] INTEGER (1..128) OPTIONAL,
        -- Indicates the length of the prefix delegated by the CSP to the subscriber
        -- example: 60 if IP address is "2001:db8:0:85a3::ac1f:8001/60"
        -- Mandatory in case where the iP-value contains an IPv6 binary value
    iPv4SubnetMask      [5] OCTET STRING (SIZE(4)) OPTIONAL,
        -- For IPv4 addresses, this indicates the subnet mask to be applied to the iP-value field.
        -- The subnet mask is intended to be presented as a binary value, e.g. "ff ff ff f8" to
        -- represent the dotted-decimal subnet mask of "255.255.255.248" corresponding to
        -- a /29 CIDR-format subnet mask
    iP-NAT-translated   [6] BOOLEAN OPTIONAL
        -- If TRUE then NAT translated, if FALSE then not NAT translated.
        -- If absent, IPAddress may or may not be NAT translated.
}

IP-value ::= CHOICE
{
    iPBinaryAddress [1] OCTET STRING (SIZE(4..16)),
        -- In case of IPv6, the Prefix Length is provided by the "iPv6PrefixLength"
        -- In case of IPv4, the netmask is provided by the "iPv4SubnetMask"
    iPTextAddress   [2] IA5String (SIZE(7..45)),
        -- In case of IPv6, the delivered iPTextAddress field could include a complete
        -- single IPv6-Address or an IPv6-Prefix for a subnetwork on the target side.
        -- In case of IPv4, the delivered iPTextAddress field could include a single
        -- IPv4 address or an IPv4address/netmask, for example "192.168.1.1" or "192.168.1.1/24"
    ...
}

LawfulInterceptionIdentifier ::= Common-Parameters.LIID
    -- LIID is a common parameter imported from ETSI TS 103 280 [44].
    -- It is redefined as LawfulInterceptionIdentifier in this
    -- module to preserve the original type name during the
    -- removal of imports from ETSI TS 101 671 [4].

END -- end of LI-PS-PDU

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