1、 TECHNICAL REPORT ATIS-1000052 BYTE COUNT REPORTING IN AN INTERNET ACCESS AND SERVICES LAES ENVIRONMENT ATIS is the leading technical planning and standards development organization committed to the rapid development of global, market-driven standards for the information, entertainment and communica
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9、 require use of an invention covered by patent rights. By publication of this standard, no position is taken with respect to whether use of an invention covered by patent rights will be required, and if any such use is required no position is taken regarding the validity of this claim or any patent
10、rights in connection therewith. ATIS-1000052, Byte Count Reporting in an Internet Access and Services LAES Environment Is an ATIS Standard developed by the Lawfully Authorized Electronic Surveillance (LAES) Subcommittee under the ATIS Packet Technologies and Systems Committee (PTSC). Published by Al
11、liance for Telecommunications Industry Solutions 1200 G Street, NW, Suite 500 Washington, DC 20005 Copyright 2012 by Alliance for Telecommunications Industry Solutions All rights reserved. No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, with
12、out the prior written permission of the publisher. For information contact ATIS at 202.628.6380. ATIS is online at . Printed in the United States of America. ATIS-1000052 ATIS Technical Report on Byte Count Reporting in an Internet Access and Services LAES Environment Alliance for Telecommunications
13、 Industry Solutions Approved May 2012 Abstract The purpose of this Technical Report is to specify a byte count reporting capability that can be used in an Internet Access and Services LAES environment. ATIS-1000052 ii Foreword The Alliance for Telecommunication Industry Solutions (ATIS) serves the p
14、ublic through improved understanding between carriers, customers, and manufacturers. The Packet Technologies and Systems Committee (PTSC) develops and recommends standards and technical reports related to services, architectures, and signaling, in addition to related subjects under consideration in
15、other North American and international standards bodies. PTSC coordinates and develops standards and technical reports relevant to telecommunications networks in the U.S., reviews and prepares contributions on such matters for submission to U.S. ITU-T and U.S. ITU-R Study Groups or other standards o
16、rganizations, and reviews for acceptability or per contra the positions of other countries in related standards development and takes or recommends appropriate actions. Suggestions for improvement of this document are welcome. They should be sent to the Alliance for Telecommunications Industry Solut
17、ions, PTSC Secretariat, 1200 G Street NW, Suite 500, Washington, DC 20005. At the time of initiation or issuance of the letter ballot for this document, PTSC, which was responsible for its development, had the following roster: M. Dolly, PTSC Chair AT&T V. Shaikh, PTSC Vice-Chair Telcordia G. Myers,
18、 PTSC-LAES Chair Counter Link N. Rao, PTSC-LAES Vice-Chair Nokia Siemens Networks T. Jacobson, Technical Editor Alcatel-Lucent C. Underkoffler, ATIS Chief Editor The Lawfully Authorized Electronic Surveillance (LAES) Subcommittee was responsible for the development of this document. ATIS-1000052 iii
19、 Table of Contents 1 SCOPE, PURPOSE, & APPLICATION 1 1.1 SCOPE 1 1.2 PURPOSE . 1 1.3 APPLICATION . 1 2 NORMATIVE REFERENCES . 2 3 DEFINITIONS, ACRONYMS, & ABBREVIATIONS 2 3.1 DEFINITIONS 2 3.2 ACRONYMS & ABBREVIATIONS 2 4 IAS MODEL . 3 5 GENERAL SURVEILLANCE MODEL AND IAS SURVEILLANCE MODEL 3 6 BYTE
20、 COUNT REPORTING CAPABILITY . 3 6.1 PACKET DATA HEADER REPORT . 3 6.2 PACKET DATA SUMMARY REPORT 3 7 BYTE COUNT REPORTING ABSTRACT SYNTAX NOTATION 4 7.1 BYTE COUNT REPORTING ABSTRACT SYNTAX NOTATION PACKET DATA HEADER REPORT 4 7.2 TOTAL BYTE COUNT REPORTING ABSTRACT SYNTAX NOTATION PACKET DATA SUMMA
21、RY REPORT . 4 TECHNICAL REPORT ATIS-10052 ATIS Technical Report on Byte Count Reporting in an Internet Access and Services LAES Environment 1 1 Scope, Purpose, & Application ATIS-1000013.2007 Ref 1 and ATIS-1000013.a.2009 Ref 2 specify two methods for delivering Content Associated Communications Ide
22、ntifying Information (CACmII) to the LEA: the Packet Data Header Report and the Packet Data Summary Report. This TR specifies how byte count of IP packets is to be reported in a Packet Data Header Report and a Packet Data Summary Report (i.e., in addition to the other IP layer-3 and layer-4 informat
23、ion included in these messages) as specified in Ref 1 and Ref 2. The byte count reporting capability is not intended to be a standalone capability, but rather builds on Ref 1 and Ref 2. Events that trigger reporting of the Packet Data Header Report or the Packet Data Summary Report as specified in R
24、ef 1 and Ref 2 shall instead trigger reporting of the Packet Data Header Report or the Packet Data Summary Report as specified in this TR. Creation of this TR is premised upon the understanding that byte count in the Packet Data Header Report of Ref 1 and associated supplement(s) is not currently pa
25、rt of the safe harbor CALEA requirements. This TR makes no representation regarding byte count information being provided pursuant to a lawful authorization that does not include a full content intercept. Any requirements or standards language (i.e., “shall”, “should”) is used strictly in the contex
26、t of ensuring that this TR is inherently sound and provides appropriate guidance to voluntary implementers. 1.1 Scope This TR specifies LAES capability of reporting byte count in the Packet Data Header Report and Packet Data Summary Report messages in an IAS environment. 1.2 Purpose This TR is provi
27、ded as a specification of byte count reporting capability with minor modifications to Ref 1 and Ref 2. 1.3 Application An Internet Access or Services Provider (IASP) currently provides byte count data as part of a full content intercept. There is an LEA need to obtain byte count information associat
28、ed with an intercept subjects electronic communications, pursuant to a lawful authorization that does not include a full content intercept (e.g., a pen-register order). The subject may have engaged in many different types of packet data sessions. Byte counts, together with other Internet Protocol (I
29、P) header information such as IP addresses and port numbers could help the LEA in determining the types of sessions in which the subject was engaged to enable the LEA to focus investigations on specific sessions. Therefore, there is a need to incorporate byte count data in packet header information
30、reported to the LEA when lawfully authorized. ATIS-1000052 2 2 Normative References The following standards contain provisions which, through reference in this text, constitute provisions of this ATIS Standard. At the time of publication, the editions indicated were valid. All standards are subject
31、to revision, and parties to agreements based on this ATIS Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Ref 1 ATIS-1000013.2007 Lawfully Authorized Electronic Surveillance (LAES) for Internet Access and Services, 2007. 1
32、Ref 2 ATIS-1000013.a.2009, Supplement A to ATIS-1000013.2007, January 2009.1Ref 3 IETF RFC 791, Internet Protocol DARPA Internet Program Protocol Specification, September 1981.2Ref 4 IETF RFC 2460, Internet Protocol, Version 6 (IPv6) Specification, December 1998.23 Definitions, Acronyms, & Abbreviat
33、ions 3.1 Definitions For a list of common communications terms and definitions, please visit the ATIS Telecom Glossary, which is located at . 3.1.1 Byte count: The integer value contained in the Total Length field of the IP header if the packet is IPv4 Ref 3, or Payload Length field of the IP header
34、 if the packet is IPv6 Ref 4. 3.1.2 Total byte count: The sum of the byte counts for all packets included in the packet count for a packet data session. 3.2 Acronyms & Abbreviations ATIS Alliance for Telecommunications Industry Solutions CACmII Content Associated Communications Identifying Informati
35、on CF Collection Function CmII Communications Identifying Information IAS Internet Access and Services IASP Internet Access or Services Provider IETF Internet Engineering Task Force IP Internet Protocol LAES Lawfully Authorized Electronic Surveillance LEA Law Enforcement Agency TR Technical Report 1
36、This document is available from the Alliance for Telecommunications Industry Solutions, 1200 G Street N.W., Suite 500, Washington, DC 20005. 2This document is available from the Internet Engineering Task Force (IETF). ATIS-1000052 3 4 IAS Model The IAS model described in Clause 4.1 of Ref 1 applies.
37、 5 General Surveillance Model and IAS Surveillance Model The general surveillance model described in Clause 4.2 and the IAS surveillance model described in clause 4.3 of Ref 1 apply. 6 Byte Count Reporting Capability The byte count reporting capability is not intended to be a standalone capability,
38、but rather builds on Ref 1 and Ref 2. When this capability is utilized, Clause 5.2.11, Packet Data Header Report, and Clause 5.2.12, Packet Data Summary Report, of Ref 1 and including their revision in Ref 2 and the corresponding functionality as included in any future revision shall apply. Events t
39、hat trigger reporting of the Packet Data Header Report as specified in Ref 1 (currently in Clause 5.2.11) and as modified in any supplements to Ref 1 as well as any successor standards, shall trigger reporting of the Packet Data Header Report with the inclusion of an additional parameter as specifie
40、d in Clause 6.1 below. Events that trigger reporting of the Packet Data Summary Report as specified in Ref 1 (currently in Clause 5.2.12) and as modified in any supplements to Ref 1 as well as any successor standards shall trigger reporting of the Packet Data Summary Report with the inclusion of an
41、additional parameter as specified in Clause 6.2 below. 6.1 Packet Data Header Report The Packet Data Header Report provides the CACmII on a per packet basis. The Packet Data Header Report is triggered by each packet of a packet stream sent or received by the intercept subject. The Header Set paramet
42、er in the Packet Data Header Report message as specified in Ref 1 Clause 6.2.11 and as modified in supplements to Ref 1 (e.g., Ref 2) as well as any successor standard shall include the number of bytes (byte count) that are transferred in each packet. The byte count reported is the number contained
43、in the Total Length field of the packet header if the packet is IPv4 Ref 3, or Payload Length field of the packet header if the packet is IPv6 Ref 4. The byte count is in addition to all the information that is reported in the Packet Data Header Report. 6.2 Packet Data Summary Report The Packet Data
44、 Summary Report provides CACmII in a summarized format. The Stream Set parameter in the Packet Data Summary Report message as specified in Ref 1 Clause 6.2.12 and as modified in supplements to Ref 1 (e.g., Ref 2) as well as any successor standard, shall include the total byte count for a packet data
45、 session. Total byte count is the sum of the byte counts for all packets included in the packet count for a packet data session. The total byte count is in addition to all the information that is reported in the Packet Data Summary Report. ATIS-1000052 4 7 Byte Count Reporting Abstract Syntax Notati
46、on 7.1 Byte Count Reporting Abstract Syntax Notation - Packet Data Header Report In conjunction with the Packet Data Header Report, the “byteCount” shall be inserted into the HeaderSet parameter as a new last entry. byteCount 30 INTEGER OPTIONAL The following shows how the “byteCount” is inserted in
47、to the HeaderSet parameter of Ref 2. HeaderSet := SEQUENCE packetDataSessionID 0 PacketDataSessionID, sourceIPaddress 1 IpAddress, destinationIPaddress 2 IpAddress, protocol 3 INTEGER, sourcePortNumber 4 INTEGER OPTIONAL, destinationPortNumber 5 INTEGER OPTIONAL, iPv6FlowLabel 6 INTEGER OPTIONAL, by
48、teCount 30 INTEGER OPTIONAL The following shows how the “byteCount” is inserted into the HeaderSet parameter of Ref 1. HeaderSet := SEQUENCE streamID 0 Value, sourceIPaddress 1 IpAddress, destinationIPaddress 2 IpAddress, sourcePortNumber 3 PortNumber OPTIONAL, destinationPortNumber 4 PortNumber OPT
49、IONAL, byteCount 30 INTEGER OPTIONAL 7.2 Total Byte Count Reporting Abstract Syntax Notation - Packet Data Summary Report In conjunction with Packet Data Summary Header Report, the “totalByteCount” shall be inserted into the StreamSet parameter as a new last entry. totalByteCount 30 INTEGER OPTIONAL The following shows how the “totalByteCount” is inserted into the StreamSet parameter of Ref 2. StreamSet := SET OF SE
