IPAccessPDU.asn 10.3 KB
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IPAccessPDU
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{itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2) li-ps(5) iPAccess(3) version10(10)}
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DEFINITIONS IMPLICIT TAGS ::=
BEGIN

IMPORTS
	-- from ETSI TS 101 671 [1]
	IPAddress
		FROM HI2Operations
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		{itu-t(0) identified-organization(4) etsi(0) securityDomain(2) lawfulIntercept(2) hi2(1) version17(17)};
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-- ============================
-- Object Identifier Definition
-- ============================

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iPIRIObjId RELATIVE-OID				::= {li-ps(5) iPAccess(3) version10(10) iRI(1)}
iPCCObjId RELATIVE-OID				::= {li-ps(5) iPAccess(3) version10(10) cC(2)}
iPIRIOnlyObjId RELATIVE-OID			::= {li-ps(5) iPAccess(3) version10(10) iRIOnly(3)}
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	-- all three definitions relative to {itu-t(0) identified-organization(4)
	-- etsi(0) securityDomain(2) lawfulintercept(2)}

-- ==========================
-- IP Communications Contents
-- ==========================

IPCC ::= SEQUENCE
{
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	iPCCObjId			[0] RELATIVE-OID,
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	iPCCContents		[1] IPCCContents
}

IPCCContents ::= CHOICE
{
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	iPPackets			[0] OCTET STRING,
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	...
}

-- ===================================================
-- Intercept-related information for general IP-Access
-- ===================================================

IPIRI ::= SEQUENCE
{
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	iPIRIObjId			[0] RELATIVE-OID,
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	iPIRIContents		[1] IPIRIContents,
	...
}

IPIRIContents ::= SEQUENCE
{
	accessEventType			[0] AccessEventType,
	targetUsername			[1] OCTET STRING,
		-- in ASCIIcharacters
	internetAccessType		[2] InternetAccessType,
	iPVersion				[3] IPVersion,
	targetIPAddress			[4] IPAddress OPTIONAL,
		-- IP address may not be available in case of failed logon attempts.
		-- If it is available, it must be sent.
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		-- This field will carry the first IPv4 or IPv6 target IP address with or without 
		-- subnet. Use of this field is fully described in section 6.2.1.
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	targetNetworkID			[5] UTF8String (SIZE (1..20)) OPTIONAL,
		-- Target network ID (e.g. MAC address, PSTN number)
	targetCPEID				[6] UTF8String (SIZE (1..128)) OPTIONAL,
		-- CPEID (e.g. Relay Agent info, computer name)
	targetLocation			[7] UTF8String (SIZE (1..64)) OPTIONAL,
		-- When internetAccessType is Wireless LAN, this field should contain a string which
		-- uniquely identifies the wireless accesspoint within the SvP domain
	pOPPortNumber			[8] INTEGER (0..4294967295) OPTIONAL,
		-- The POP port number used by the target
	callBackNumber			[9] UTF8String (SIZE (1..20)) OPTIONAL,
		-- The number used to call-back the target
	startTime				[10] GeneralizedTime OPTIONAL,
		-- The start date-time of the session or lease
	endTime					[11] GeneralizedTime OPTIONAL,
		-- The actual end date-time of the session or lease
	endReason				[12] EndReason OPTIONAL,
		-- The reason for the session to end
	octetsReceived			[13] INTEGER (0..18446744073709551615) OPTIONAL,
		-- The number of octets the target received
	octetsTransmitted		[14] INTEGER (0..18446744073709551615) OPTIONAL,
		-- The number of octets the target transmitted
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	rawAAAData			 [15] OCTET STRING OPTIONAL,
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		-- Content of the raw AAA record
	...,
	expectedEndTime			[16] GeneralizedTime OPTIONAL,
		-- The expected end date-time of the session or lease
	pOPPhoneNumber			[17] UTF8String (SIZE (1..20)) OPTIONAL,
		-- The phone number dialed by the target for dial-up
	pOPIdentifier			[18] IPIRIIDType OPTIONAL,
		-- The identifier or name of the POP
	pOPIPAddress			[19] IPAddress OPTIONAL,
		-- The IP address of the POP
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	nationalIPIRIParameters	[20] NationalIPIRIParameters OPTIONAL,
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		-- National IP IRI Parameters
	additionalIPAddress		[21] IPAddress OPTIONAL,
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		-- This field will carry the first IPv6 target IP address with or without prefix when the 
		-- iPVersion parameter is set to iPV4andV6.
		-- Use of this field is fully described in section 6.2.1
	authenticationType		[22] AuthenticationType OPTIONAL,
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		-- Field used to identify the authentication type to assist with LEMF data validation
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	otherTargetIdentifiers	[23] SEQUENCE OF OtherTargetIdentifiers OPTIONAL
		-- This parameter will carry the second and subsequent IPv4 or IPv6 target IP addresses
		-- It is used when multiple subnet/prefix ranges are assigned to a target service.
		-- Use of this field is fully described in section 6.2.1
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}

AccessEventType ::= ENUMERATED
{
	accessAttempt(0),
		-- A target requests access to the IAS
	accessAccept(1),
		-- IAS access is granted to the target, the session begins
	accessReject(2),
		-- IAS access is refused to the target
	accessFailed(3),
		-- The Access_attempt timed-out or failed otherwise
	sessionStart(4),
		-- A target starts using the IAS; not in use anymore from version 4(4)
	sessionEnd(5),
		-- A target stops using the IAS; not in use anymore from version 4(4)
	interimUpdate(6),
		-- Intermediate status report on service status or usage
	...,
	startOfInterceptionWithSessionActive(7),
		-- LI is started on a target who already has an active session
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	accessEnd(8),
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		-- A target stops using the IAS, the session ends
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	endOfInterceptionWithSessionActive(9),
	 	-- LI is ended on a target who still has an active session
	unknown(10)
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}

InternetAccessType ::= ENUMERATED
{
	undefined(0),
	dialUp(1),
		-- IAS via DialUp access
	xDSL(2),
		-- IAS via DSL access
	cableModem(3),
		-- IAS via Cable access
	lAN(4),
		-- IAS via LAN access
	...,
	wirelessLAN(5),
		-- IAS via Wireless LAN access
	fTTx(6),
		-- IAS via Fiber access
	wIMAX-HIPERMAN(7),
		-- IAS via WIMAX/HIPERMAN (fixed access)
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	satellite(8),
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		-- IAS via Satellite access
		-- (when it is not covered by any 3GPP or ETSI mobile Lawful Interception specifications)
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	wireless-other(9)
		-- IAS via other type of Wireless access
		-- (when it is not covered by any 3GPP or ETSI mobile Lawful Interception specifications)
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}

IPVersion ::= ENUMERATED
{
	iPV4(1),
		-- The IPv4 protocol is used
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	iPV6(2),
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		-- The IPv6 protocol is used
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	iPV4andV6(3),
		-- The IPv4 and IPv6 protocols are used
	...
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}

EndReason ::= ENUMERATED
{
	undefined(0),
	regularLogoff(1),
		-- The target logged off
	connectionLoss(2),
		-- The connection was lost
	connectionTimeout(3),
		-- The connection timed-out
	leaseExpired(4),
		-- The DHCP lease expired
	...
}

IPIRIIDType ::= CHOICE
{
	printableIDType			[0] UTF8String (SIZE (1..128)),
		-- For printable userIDs, such as the Radius username, phonenumbers
	macAddressType			[1] OCTET STRING (SIZE (6)),
		-- For MAC address types, raw binary format as in RFC 2132 [15]
	ipAddressType			[2] IPAddress,
		-- For IP address types
	...
}

NationalIPIRIParameters ::= SEQUENCE
{
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	countryCode		[1] PrintableString (SIZE (2)),
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		-- Country Code according to ISO 3166-1 [16],
		-- the country to which the parameters inserted after the extension marker apply.
	...
	-- In case a given country wants to use additional national parameters according to its law,
	-- these national parameters should be defined using the ASN.1 syntax and added after the
	-- extension marker (...).
	-- It is recommended that "version parameter" and "vendor identification parameter" are
	-- included in the national parameters definition. Vendor identifications can be
	-- retrieved from the IANA web site (see Annex E Bibliography). Besides, it is recommended 
	-- to avoid using tags from 240 to 255 in a formal type definition.
}

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AuthenticationType ::= ENUMERATED
{
	unknown(0),
		-- AAA function for the target service is unknown
	static(1),
		-- The target service is assigned a static IP address & no AAA expected
	radiusAAA(2),
		-- AAA function for the target service is provided by RADIUS
	dhcpAAA(3),
		-- AAA function for the target service is provided by DHCP
	diameterAAA(4),
		-- AAA function for the target service is provided by DIAMETER
	...
}

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OtherTargetIdentifiers ::= CHOICE
{
		-- Additional target identifiers associated with the target service
		-- This list is extensible to accommodate other target identifiers which 
		-- may be required in future.
	iPAddress		[0] IPAddress,
		-- IPAddress imported from TS 101 671 [1].
		-- This can be an IPv4 address (with or without a subnet range defined) or 
		-- an IPv6 address (with or without a prefix range defined).
	...
}

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-- =====================================================
-- Intercept-related information for IRI-Only intercepts
-- =====================================================

IPIRIOnly ::= SEQUENCE
{
	iPIRIOnlyObjId				[0] RELATIVE-OID,
	iPInformation				[1] IPInformation,
	protocolInformation			[2] ProtocolInformation,
	iPAggregatedNbrOfPackets	[3] INTEGER OPTIONAL,
	iPAggregatedNbrOfBytes		[4] INTEGER OPTIONAL,
	...
}

IPInformation ::= CHOICE
{
	iPv4Information		[0] IPv4Information,
	iPv6Information		[1] IPv6Information
}

ProtocolInformation ::= CHOICE
{
	none					[0] NULL,
		-- No layer 4 protocol information is provided
	tCPInformation			[1] TCPInformation,
	uDPInformation			[2] UDPInformation,
	...
}

IPv4Information ::= SEQUENCE
{
	headerLength			[0] OCTET STRING OPTIONAL,
	typeOfService			[1] OCTET STRING OPTIONAL,
	totalLength				[2] OCTET STRING (SIZE (2))OPTIONAL,
	identification			[3] OCTET STRING (SIZE (2))OPTIONAL,
	fragment				[4] OCTET STRING (SIZE (2))OPTIONAL,
	ttl						[5] OCTET STRING OPTIONAL,
	protocol				[6] OCTET STRING OPTIONAL,
	headerChecksum			[7] OCTET STRING (SIZE (2))OPTIONAL,
	source					[8] OCTET STRING (SIZE (4)),
	destination				[9] OCTET STRING (SIZE (4)),
	options					[10] OCTET STRING (SIZE (0..40))OPTIONAL
}

IPv6Information ::= SEQUENCE
{
	trafficClass			[0] OCTET STRING OPTIONAL,
	flowLabel				[1] OCTET STRING (SIZE (20))OPTIONAL,
	payloadLength			[2] OCTET STRING (SIZE (4))OPTIONAL,
	nextHeader				[3] OCTET STRING OPTIONAL,
	hopLimit				[4] OCTET STRING OPTIONAL,
	source					[5] OCTET STRING (SIZE (16)),
	destination				[6] OCTET STRING (SIZE (16))
}

TCPInformation ::= SEQUENCE
{
	sourcePort			[0] OCTET STRING (SIZE (2))OPTIONAL,
	destinationPort		[1] OCTET STRING (SIZE (2))OPTIONAL,
	sequenceNumber		[2] OCTET STRING (SIZE (4))OPTIONAL,
	ackNumber			[3] OCTET STRING (SIZE (4))OPTIONAL,
	dataOffset			[4] BIT STRING (SIZE (4))OPTIONAL,
		-- First 4 bits
	controlBits			[5] BIT STRING (SIZE (6))OPTIONAL,
		-- Last 6 bits
	windowSize			[6] OCTET STRING (SIZE (2))OPTIONAL,
	checkSum			[7] OCTET STRING (SIZE (2))OPTIONAL,
	urgentPointer		[8] OCTET STRING (SIZE (2))OPTIONAL,
	options				[9] OCTET STRING (SIZE (0..40))OPTIONAL
}

UDPInformation ::= SEQUENCE
{
	sourcePort			[0] OCTET STRING (SIZE (2))OPTIONAL,
	destinationPort		[1] OCTET STRING (SIZE (2))OPTIONAL,
	length				[2] OCTET STRING (SIZE (2))OPTIONAL,
	checkSum			[3] OCTET STRING (SIZE (2))OPTIONAL
}

END -- end of IPAccessPDU
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