The Regents of the University of California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
@(#)0.t 8.1 (Berkeley) 6/10/93
\\$1\\$2 .. Networking Implementation Notes
4.4BSD Edition .AU Samuel J. Leffler, William N. Joy, Robert S. Fabry, and Michael J. Karels .AI Computer Systems Research Group Computer Science Division Department of Electrical Engineering and Computer Science University of California, Berkeley Berkeley, CA 94720 .AB .FS * UNIX is a trademark of Bell Laboratories. .FE This report describes the internal structure of the networking facilities developed for the 4.4BSD version of the UNIX* operating system for the VAX\(dg. These facilities .FS \(dg DEC, VAX, DECnet, and UNIBUS are trademarks of Digital Equipment Corporation. .FE are based on several central abstractions which structure the external (user) view of network communication as well as the internal (system) implementation.
The report documents the internal structure of the networking system. The ``Berkeley Software Architecture Manual, 4.4BSD Edition'' (PSD:5) provides a description of the user interface to the networking facilities.
Revised June 10, 1993 .AE
.de PT
.lt \\n(LLu
.pc %
.nr PN \\n%
.tl '\\*(LH'\\*(CH'\\*(RH'
.lt \\n(.lu
..
.ds RH Contents
.OH 'Networking Implementation Notes''SMM:18-%'
.EH 'SMM:18-%''Networking Implementation Notes'
.bp
"TABLE OF CONTENTS"
"1. Introduction"
"2. Overview"
"3. Goals
"4. Internal address representation"
"5. Memory management"
"6. Internal layering 6.1. Socket layer 6.1.1. Socket state 6.1.2. Socket data queues 6.1.3. Socket connection queuing 6.2. Protocol layer(s) 6.3. Network-interface layer 6.3.1. UNIBUS interfaces
"7. Socket/protocol interface"
"8. Protocol/protocol interface" 8.1. pr_output 8.2. pr_input 8.3. pr_ctlinput 8.4. pr_ctloutput
"9. Protocol/network-interface interface" 9.1. Packet transmission 9.2. Packet reception
"10. Gateways and routing issues 10.1. Routing tables 10.2. Routing table interface 10.3. User level routing policies
"11. Raw sockets" 11.1. Control blocks 11.2. Input processing 11.3. Output processing
"12. Buffering and congestion control" 12.1. Memory management 12.2. Protocol buffering policies 12.3. Queue limiting 12.4. Packet forwarding
"13. Out of band data"
"14. Trailer protocols"
Acknowledgements
References .bp 2.94 went to 2.6, 3.64 to 3.30
.. 3.5i went to 3.8i
..