rfc3252.txt

RFC 的详细文档！


RFC 3252         Binary Lexical Octet Ad-hoc Transport      1 April 2002


          reserved CDATA  #FIXED "0"
          df (may|dont)   #REQUIRED
          mf (last|more)  #REQUIRED>

   <!ELEMENT offset EMPTY>
   <!-- 0 <= offset <= 8192 measured in 8 octet (64-bit) chunks -->
   <!ATTLIST offset
             value %Digits; #REQUIRED>

   <!ELEMENT ttl EMPTY>
   <!-- 0 <= ttl <= 255 -->
   <!ATTLIST ttl
             value %Digits; #REQUIRED>

   <!ELEMENT protocol EMPTY>
   <!-- 0 <= protocol <= 255 (per IANA) -->
   <!ATTLIST protocol
             value %Digits; #REQUIRED>

   <!ELEMENT checksum EMPTY>
   <!-- 0 <= checksum <= 65535 (over header only) -->
   <!ATTLIST checksum
             value %Digits; #REQUIRED>

   <!ELEMENT source EMPTY>
   <!ATTLIST source
             address %IP4Addr; #REQUIRED>

   <!ELEMENT destination EMPTY>
   <!ATTLIST destination
             address %IP4Addr; #REQUIRED>

   <!ELEMENT options ( end | noop | security | loose | strict | record
                     | stream | timestamp )*>

   <!ELEMENT end EMPTY>
   <!ATTLIST end
             copied (0|1) #REQUIRED
             class  CDATA #FIXED "0"
             number CDATA #FIXED "0">

   <!ELEMENT noop EMPTY>
   <!ATTLIST noop
             copied (0|1) #REQUIRED
             class  CDATA #FIXED "0"
             number CDATA #FIXED "1">

   <!ELEMENT security EMPTY>



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   <!ATTLIST security
             copied CDATA #FIXED "1"
             class  CDATA #FIXED "0"
             number CDATA #FIXED "2"
             length CDATA #FIXED "11"
             security %Sec; #REQUIRED
             compartments %Compartments; #REQUIRED
             handling %Handling; #REQUIRED
             tcc %TCC; #REQUIRED>
   <!ELEMENT loose (hop)+>
   <!ATTLIST loose
             copied CDATA #FIXED "1"
             class  CDATA #FIXED "0"
             number CDATA #FIXED "3"
             length %Digits; #REQUIRED
             pointer %Digits; #REQUIRED>

   <!ELEMENT hop EMPTY>
   <!ATTLIST hop
             address %IP4Addr; #REQUIRED>

   <!ELEMENT strict (hop)+>
   <!ATTLIST strict
             copied CDATA #FIXED "1"
             class  CDATA #FIXED "0"
             number CDATA #FIXED "9"
             length %Digits; #REQUIRED
             pointer %Digits; #REQUIRED>

   <!ELEMENT record (hop)+>
   <!ATTLIST record
             copied CDATA #FIXED "0"
             class  CDATA #FIXED "0"
             number CDATA #FIXED "7"
             length %Digits; #REQUIRED
             pointer %Digits; #REQUIRED>

   <!ELEMENT stream EMPTY>
   <!-- 0 <= id <= 65,535 -->
   <!ATTLIST stream
             copied CDATA #FIXED "1"
             class  CDATA #FIXED "0"
             number CDATA #FIXED "8"
             length CDATA #FIXED "4"
             id %Digits; #REQUIRED>

   <!ELEMENT timestamp (tstamp)+>
   <!-- 0 <= oflw <=15 -->



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   <!ATTLIST timestamp
             copied CDATA #FIXED "0"
             class  CDATA #FIXED "2"
             number CDATA #FIXED "4"
             length %Digits;  #REQUIRED
             pointer %Digits; #REQUIRED
             oflw %Digits;    #REQUIRED
             flag (0 | 1 | 3)  #REQUIRED>

   <!ELEMENT tstamp EMPTY>
   <!ATTLIST tstamp
             time %Digits;   #REQUIRED
             address %IP4Addr; #IMPLIED>
   <!--
       padding to bring header to 32-bit boundary.
       pad MUST be "0"*
    -->
   <!ELEMENT padding EMPTY>
   <!ATTLIST padding
             pad CDATA #REQUIRED>

   <!-- payload MUST be encoded as base-64 [RFC2045], as modified
        by section 2.1 of this RFC -->
   <!ELEMENT payload (CDATA)>

7.2.  TCPoXML DTD

   <!--
      DTD for TCP over XML.
      Refer to this DTD as:

      <!DOCTYPE tcp PUBLIC "-//IETF//DTD BLOAT 1.0 TCP//EN" "bloat.dtd">
   -->

   <!-- the pseudoheader is only included for checksum calculations -->
   <!ELEMENT tcp (tcp.pseudoheader?, tcp.header, payload)>

   <!ELEMENT tcp.header (src, dest, sequence, acknowledgement, offset,
                         reserved, control, window, checksum, urgent,
                         tcp.options, padding)>

   <!ELEMENT src EMPTY>
   <!-- 0 <= port <= 65,535 -->
   <!ATTLIST src
             port %Digits; #REQUIRED>

   <!ELEMENT dest EMPTY>
   <!-- 0 <= port <= 65,535 -->



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   <!ATTLIST dest
             port %Digits; #REQUIRED>

   <!ELEMENT sequence EMPTY>
   <!-- 0 <= number <= 4294967295 -->
   <!ATTLIST sequence
             number %Digits; #REQUIRED>

   <!ELEMENT acknowledgement EMPTY>
   <!-- 0 <= number <= 4294967295 -->
   <!ATTLIST acknowledgement
             number %Digits; #REQUIRED>

   <!ELEMENT offset EMPTY>
   <!-- 0 <= number <= 255 -->
   <!ATTLIST offset
             number %Digits; #REQUIRED>

   <!ELEMENT reserved EMPTY>
   <!ATTLIST reserved
             value CDATA #FIXED "0">

   <!ELEMENT control EMPTY>
   <!ATTLIST control
             urg (0|1) #IMPLIED
             ack (0|1) #IMPLIED
             psh (0|1) #IMPLIED
             rst (0|1) #IMPLIED
             syn (0|1) #IMPLIED
             fin (0|1) #IMPLIED>

   <!ELEMENT window EMPTY>
   <!-- 0 <= size <= 65,535 -->
   <!ATTLIST window
             size %Digits; #REQUIRED>

   <!--
      checksum as in ip, but with
      the following pseudo-header added into the tcp element:
     -->
   <!ELEMENT tcp.pseudoheader (source, destination, protocol,
                               tcp.length)>

   <!--
      tcp header + data length in octets. does not include the size of

      the pseudoheader.
    -->



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   <!ELEMENT tcp.length EMPTY>
   <!ATTLIST tcp.length
             value %Digits; #REQUIRED>

   <!ELEMENT urgent EMPTY>
   <!-- 0 <= pointer <= 65,535 -->
   <!ATTLIST urgent
             pointer %Digits; #REQUIRED>

   <!ELEMENT tcp.options (tcp.end | tcp.noop | tcp.mss)+>

   <!ELEMENT tcp.end EMPTY>
   <!ATTLIST tcp.end
             kind CDATA #FIXED "0">

   <!ELEMENT tcp.noop EMPTY>
   <!ATTLIST tcp.noop
             kind CDATA #FIXED "1">

   <!ELEMENT tcp.mss EMPTY>
   <!ATTLIST tcp.mss
             kind CDATA #FIXED "2"
             length CDATA #FIXED "4"
             size %Digits; #REQUIRED>

7.3.  UDPoXML DTD

   <!--
      DTD for UDP over XML.
      Refer to this DTD as:

      <!DOCTYPE udp PUBLIC "-//IETF//DTD BLOAT 1.0 UDP//EN" "bloat.dtd">
   -->

   <!ELEMENT udp (udp.pseudoheader?, udp.header, payload)>

   <!ELEMENT udp.header (src, dest, udp.length, checksum)>

   <!ELEMENT udp.pseudoheader (source, destination, protocol,
                               udp.length)>

   <!--
      udp header + data length in octets. does not include the size of
      the pseudoheader.
    -->
   <!ELEMENT udp.length EMPTY>
   <!ATTLIST udp.length
             value %Digits; #REQUIRED>



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8. Security Considerations

   XML, as a subset of SGML, has the same security considerations as
   specified in SGML Media Types [RFC1874].  Security considerations
   that apply to IP, TCP and UDP also likely apply to BLOAT as it does
   not attempt to correct for issues not related to message format.

9.   References

   [JABBER]    Miller, J., "Jabber", draft-miller-jabber-00.txt,
               February 2002. (Work in Progress)

   [RFC768]    Postel, J., "User Datagram Protocol", STD 6, RFC 768,
               August 1980.

   [RFC791]    Postel, J., "Internet Protocol", STD 5, RFC 791,
               September 1981.

   [RFC793]    Postel, J., "Transmission Control Protocol", STD 7, RFC
               793, September 1981.

   [RFC894]    Hornig, C., "Standard for the Transmission of IP
               Datagrams over Ethernet Networks.", RFC 894, April 1984.

   [RFC1042]   Postel, J. and J. Reynolds, "Standard for the
               Transmission of IP Datagrams Over IEEE 802 Networks", STD
               43, RFC 1042, February 1988.

   [RFC1123]   Braden, R., "Requirements for Internet Hosts -
               Application and Support", RFC 1123, October 1989.

   [RFC1874]   Levinson, E., "SGML Media Types", RFC 1874, December
               1995.

   [RFC2003]   Perkins, C., "IP Encapsulation within IP", RFC 2003,
               October 1996.

   [RFC2045]   Freed, N. and N. Borenstein, "Multipurpose Internet Mail
               Extensions (MIME) Part One: Format of Internet Message
               Bodies", RFC 2045, November 1996.

   [RFC2119]   Bradner, S., "Key words for use in RFCs to Indicate
               Requirement Levels", BCP 14, RFC 2119, March 1997.

   [RFC2279]   Yergeau, F., "UTF-8, a transformation format of ISO
               10646", RFC 2279, January 1998.





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   [RFC2460]   Deering, S. and R. Hinden, "Internet Protocol, Version 6
               (IPv6) Specification", RFC 2460, December 1998.

   [RFC3080]   Rose, M., "The Blocks Extensible Exchange Protocol Core",
               RFC 3080, March 2001.

   [SOAP]      Box, D., Ehnebuske, D., Kakivaya, G., Layman, A.,
               Mendelsohn, N., Nielsen, H. F., Thatte, S. Winer, D.,
               "Simple Object Access Protocol (SOAP) 1.1" World Wide Web
               Consortium Note, May 2000 http://www.w3.org/TR/SOAP/

   [XML]       Bray, T., Paoli, J., Sperberg-McQueen, C. M., "Extensible
               Markup Language (XML)" World Wide Web Consortium
               Recommendation REC- xml-19980210.
               http://www.w3.org/TR/1998/REC-xml-19980210

10.  Author's Address

   Hugh Kennedy
   Mimezine
   1060 West Addison
   Chicago, IL 60613
   USA

   EMail: [e-mail]


























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11.  Full Copyright Statement

   Copyright (C) The Internet Society (2002).  All Rights Reserved.

   This document and translations of it may be copied and furnished to
   others, and derivative works that comment on or otherwise explain it
   or assist in its implementation may be prepared, copied, published
   and distributed, in whole or in part, without restriction of any
   kind, provided that the above copyright notice and this paragraph are
   included on all such copies and derivative works.  However, this
   document itself may not be modified in any way, such as by removing
   the copyright notice or references to the Internet Society or other
   Internet organizations, except as needed for the purpose of
   developing Internet standards in which case the procedures for
   copyrights defined in the Internet Standards process must be
   followed, or as required to translate it into languages other than
   English.

   The limited permissions granted above are perpetual and will not be
   revoked by the Internet Society or its successors or assigns.

   This document and the information contained herein is provided on an
   "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
   TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
   BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
   HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

Acknowledgement

   Funding for the RFC Editor function is currently provided by the
   Internet Society.



















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