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The Design and Implementation of the 4.4 BSD Operating System (Addison-Wesley UNIX and Open Systems Series)

The Design and Implementation of the 4.4 BSD Operating System (Addison-Wesley UNIX and Open Systems Series) Cover

 

Synopses & Reviews

Publisher Comments:

This book describes the design and implementation of the BSD operating system--previously known as the Berkeley version of UNIX. Today, BSD is found in nearly every variant of UNIX, and is widely used for Internet services and firewalls, timesharing, and multiprocessing systems. Readers involved in technical and sales support can learn the capabilities and limitations of the system; applications developers can learn effectively and efficiently how to interface to the system; systems programmers can learn how to maintain, tune, and extend the system. Written from the unique perspective of the system's architects, this book delivers the most comprehensive, up-to-date, and authoritative technical information on the internal structure of the latest BSD system.

As in the previous book on 4.3BSD (with Samuel Leffler), the authors first update the history and goals of the BSD system. Next they provide a coherent overview of its design and implementation. Then, while explaining key design decisions, they detail the concepts, data structures, and algorithms used in implementing the system's facilities. As an in-depth study of a contemporary, portable operating system, or as a practical reference, readers will appreciate the wealth of insight and guidance contained in this book. Highlights of the book:

  • Details major changes in process and memory management
  • Describes the new extensible and stackable filesystem interface
  • Includes an invaluable chapter on the new network filesystem
  • Updates information on networking and interprocess communication

Synopsis:

This text describes the design and implementation of the 4.4 BSD operating system, presenting the technical information needed by BSD system programmers and application programmers.

About the Author

Marshall Kirk McKusick writes books and articles, consults, and teaches classes on UNIX- and BSD-related subjects. While at the University of California at Berkeley, he implemented the 4.2BSD fast file system, and was the research computer scientist at the Berkeley Computer Systems Research Group (CSRG) overseeing the development and release of 4.3BSD and 4.4BSD. He has twice served as the president of the board of the Usenix Association.

Keith Bostic is a member of the technical staff at Berkeley Software Design, Inc. He spent 8 years as a member of the CSRG, overseeing the development of over 400 freely redistributable UNIX-compatible utilities, and is the recipient of the 1991 Distinguished Achievement Award from the University of California, Berkeley, for his work to make 4.4BSD freely redistributable. Concurrently, he was the principle architect of the 2.10BSD release of the Berkeley Software Distribution for PDP-11s, and the coauthor of the Berkeley Log Structured Filesystem and the Berkeley database package (DB). He is also the author of the widely used vi implementation, nvi. He received his undergraduate degree in Statistics and his Masters degree in Electrical Engineering from George Washington University. He is a member of the ACM, the IEEE, and several POSIX working groups. In his spare time, he enjoys scuba diving in the South Pacific, mountain biking, and working on a tunnel into Kirk and Eric's specially constructed wine cellar. He lives in Massachusetts with his wife, Margo Seltzer, and their cats.

Michael J. Karels is the System Architect and Vice President of Engineering at Berkeley Software Design, Inc. He spent 8 years as the Principal Programmer of the CSRG at the University of California, Berkeley as the system architect for 4.3BSD. Karels received his Bachelor's degree in Microbiology from the University of Notre Dame. While a graduate student in Molecular Biology at the University of California, he was the principal developer of the 2.9BSD UNIX release of the Berkeley Software Distribution for the PDP-11. He is a member of the ACM, the IEEE, and several POSIX working groups. He lives with his wife Teri Karels in the backwoods of Minnesota.

John S. Quarterman is Senior Technical Partner at Texas Internet Consulting, which consults in networks and open systems with particular emphasis on TCP/IP networks, UNIX systems, and standards.He is the author of The Matrix: Computer Networks and Conferencing Systems Worldwide (Digital Press, 1990), and is a coauthor of UNIX, POSIX, and Open Systems: The Open Standards Puzzle (1993), Practical Internetworking with TCP/IP and UNIX (1993), The Internet Connection: System Connectivity and Configuration (1994), and The E-Mail Companion: Communicating Effectively via the Internet and Other Global Networks (1994), all published by Addison-Wesley. He is editor of Matrix News, a monthly newsletter about issues that cross network, geographic, and political boundaries, and of Matrix Maps Quarterly; both are published by Matrix Information and Directory Services, Inc. (MIDS) of Austin, Texas. He is a partner in Zilker Internet Park, which provides Internet access from Austin. He and his wife, Gretchen Quarterman, split their time among his home in Austin, hers in Buffalo, New York, and various other locations.

Table of Contents

1. OVERVIEW.
1. History and Goals.

History of the UNIX System.

Origins.

Research UNIX.

AT&T UNIX System III and System V.

Other Organizations.

Berkeley Software Distributions.

UNIX in the World.

BSD and Other Systems.

The Influence of the User Community.

Design Goals of 4BSD.

4.2BSD Design Goals.

4.3BSD Design Goals.

4.4BSD Design Goals.

Release Engineering.

References.
2. Design Overview of 4.4BSD.

4.4BSD Facilities and the Kernel.

The Kernel.

Kernel Organization.

Kernel Services.

Process Management.

Signals.

Process Groups and Sessions.

Memory Management.

BSD Memory-Management Design Decisions.

Memory Management Inside the Kernel.

I/O System.

Descriptors and I/O.

Descriptor Management.

Devices.

Socket IPC.

Scatter/Gather I/O.

Multiple Filesystem Support.

Filesystems.

Filestores.

Network Filesystem.

Terminals.

Interprocess Communication.

Network Communication.

Network Implementation.

System Operation.

Exercises.

References.
3.Kernel Services.

Kernel Organization.

System Processes.

System Entry.

Run-Time Organization.

Entry to the Kernel.

Return from the Kernel.

System Calls.

Result Handling.

Returning from a System Call.

Traps and Interrupts.

Traps.

I/O Device Interrupts.

Software Interrupts.

Clock Interrupts.

Statistics and Process Scheduling.

Timeouts.

Memory-Management Services.

Timing Services.

Real Time.

Adjustment of the Time.

External Representation.

Interval Time.

User, Group, and Other Identifiers.

Host Identifiers.

Process Groups and Sessions.

Resource Services.

Process Priorities.

Resource Utilization.

Resource Limits.

Filesystem Quotas.

System-Operation Services.

Accounting.

Exercises.

References.

II. PROCESSES.

4. Process Management.

Introduction to Process Management.

Multiprogramming.

Scheduling.

Process State.

The Process Structure.

The User Structure.

Context Switching.

Process State.

Low-Level Context Switching.

Voluntary Context Switching.

Synchronization.

Process Scheduling.

Calculations of Process Priority.

Process-Priority Routines.

Process Run Queues and Context Switching.

Process Creation.

Process Termination.

Signals.

Comparison with POSIX Signals.

Posting of a Signal.

Delivering a Signal.

Process Groups and Sessions.

Sessions.

Job Control.

Process Debugging.

Exercises.

References.
5. Memory Management.

Terminology.

Processes and Memory .

Paging.

Replacement Algorithms.

Working-Set Model.

Swapping.

Advantages of Virtual Memory.

Hardware Requirements for Virtual Memory.

Overview of the 4.4BSD Virtual-Memory System.

Kernel Memory Management.

Kernel Maps and Submaps.

Kernel Address-Space Allocation.

Kernel Malloc.

Per-Process Resources.

4.4BSD Process Virtual-Address Space.

Page-Fault Dispatch.

Mapping to Objects.

Objects.

Objects to Pages.

Shared Memory.

Mmap Model.

Shared Mapping.

Private Mapping.

Collapsing of Shadow Chains.

Private Snapshots.

5.6 Creation of a New Process.

Reserving Kernel Resources.

Duplication of the User Address Space.

Creation of a New Process Without Copying.

Execution of a File.

Process Manipulation of Its Address Space.

Change of Process Size.

File Mapping.

Change of Protection.

Termination of a Process.

The Pager Interface.

Vnode Pager.

Device Pager.

Swap Pager.

Paging.

Page Replacement.

Paging Parameters.

The Pageout Daemon.

Swapping.

The Swap-In Process.

Portability .

The Role of the pmap Module.

Initialization and Startup.

Mapping Allocation and Deallocation.

Change of Access and Wiring Attributes for Mappings.

Management of Page-Usage Information.

Initialization of Physical Pages.

Management of Internal Data Structures.

Exercises.

References.

III. I/O System.

6. I/O System Overview.

I/O Mapping from User to Device.

Device Drivers.

I/O Queueing.

Interrupt Handling.

Block Devices.

Entry Points for Block-Device Drivers.

Sorting of Disk I/O Requests.

Disk Labels.

Character Devices.

Raw Devices and Physical I/O.

Character-Oriented Devices.

Entry Points for Character-Device Drivers.

Descriptor Management and Services.

Open File Entries.

Management of Descriptors.

File-Descriptor Locking.

Multiplexing I/O on Descriptors.

Implementation of Select.

Movement of Data Inside the Kernel.

The Virtual-Filesystem Interface.

Contents of a Vnode.

Vnode Operations.

Pathname Translation.

Exported Filesystem Services.

Filesystem-Independent Services.

The Name Cache.

Buffer Management.

Implementation of Buffer Management.

Stackable Filesystems.

Simple Filesystem Layers.

The Union Mount Filesystem.

Other Filesystems.

Exercises.

References.
7. Local Filesystems.

Hierarchical Filesystem Management.

Structure of an Inode.

Inode Management.

Naming.

Directories.

Finding of Names in Directories.

Pathname Translation.

Links.

Quotas.

File Locking.

Other Filesystem Semantics.

Large File Sizes.

File Flags.

Exercises.

References.
8. Local Filestores.

Overview of the Filestore.

The Berkeley Fast Filesystem.

Organization of the Berkeley Fast Filesystem.

Optimization of Storage Utilization.

Reading and Writing to a File.

Filesystem Parameterization.

Layout Policies.

Allocation Mechanisms.

Block Clustering.

Synchronous Operations.

The Log-Structured Filesystem.

Organization of the Log-Structured Filesystem.

Index File.

Reading of the Log.

Writing to the Log.

Block Accounting.

The Buffer Cache.

Directory Operations.

Creation of a File.

Reading and Writing to a File.

Filesystem Cleaning.

Filesystem Parameterization.

Filesystem-Crash Recovery.

The Memory-Based Filesystem.

Organization of the Memory-Based Filesystem.

Filesystem Performance.

Future Work.

Exercises.

References.
9. The Network Filesystem.

History and Overview.

NFS Structure and Operation.

The NFS Protocol.

The 4.4BSD NFS Implementation.

Client-Server Interactions.

RPC Transport Issues.

Security Issues.

Techniques for Improving Performance.

Leases.

Crash Recovery.

Exercises.

References.
10. Terminal Handling.

Terminal-Processing Modes.

Line Disciplines.

User Interface.

The tty Structure.

Process Groups, Sessions, and Terminal Control.

C-lists.

RS-232 and Modem Control.

Terminal Operations.

Open.

Output Line Discipline.

Output Top Half.

Output Bottom Half.

Input Bottom Half.

Input Top Half.

The stop Routine.

The ioctl Routine.

Modem Transitions.

Closing of Terminal Devices.

Other Line Disciplines.

Serial Line IP Discipline.

Graphics Tablet Discipline.

Exercises.

References.

IV. INTERPROCESS COMMUNICATION.

11. Interprocess Communication.

Interprocess-Communication Model.

Use of Sockets.

Implementation Structure and Overview.

Memory Management.

Mbufs.

Storage-Management Algorithms.

Mbuf Utility Routines.

Data Structures.

Communication Domains.

Sockets.

Socket Addresses.

Connection Setup.

Data Transfer.

Transmitting Data.

Receiving Data.

Passing Access Rights.

Passing Access Rights in the Local Domain.

Socket Shutdown.

Exercises.

References.
12. Network Communication.

Internal Structure.

Data Flow.

Communication Protocols.

Network Interfaces.

Socket-to-Protocol Interface.

Protocol User-Request Routine.

Internal Requests.

Protocol Control-Output Routine.

Protocol-Protocol Interface.

pr_output.

pr_input.

pr_ctlinput.

Interface between Protocol and Network Interface.

Packet Transmission.

Packet Reception.

Routing.

Kernel Routing Tables.

Routing Lookup.

Routing Redirects.

Routing-Table Interface.

User-Level Routing Policies.

User-Level Routing Interface: Routing Socket.

Buffering and Congestion Control.

Protocol Buffering Policies.

Queue Limiting.

Raw Sockets.

Control Blocks.

Input Processing.

Output Processing.

Additional Network-Subsystem Topics.

Out-of-Band Data.

Address Resolution Protocol.

Exercises.

References.
13. Network Protocols.

Internet Network Protocols.

Internet Addresses.

Subnets.

Broadcast Addresses.

Internet Multicast.

Internet Ports and Associations.

Protocol Control Blocks.

User Datagram Protocol (UDP).

Initialization.

Output.

Input.

Control Operations.

Internet Protocol (IP).

Output.

Input.

Forwarding.

Transmission Control Protocol (TCP).

TCP Connection States.

Sequence Variables.

TCP Algorithms.

Timers.

Estimation of Round-Trip Time.

Connection Establishment.

Connection Shutdown.

TCP Input Processing.

TCP Output Processing.

Sending of Data.

Avoidance of the Silly-Window Syndrome.

Avoidance of Small Packets.

Delayed Acknowledgments and Window Updates.

Retransmit State.

Slow Start.

Source-Quench Processing.

Buffer and Window Sizing.

Avoidance of Congestion with Slow Start.

Fast Retransmission.

Internet Control Message Protocol (ICMP).

OSI Implementation Issues.

Summary of Networking and Interprocess Communication.

Creation of a Communication Channel.

Sending and Receiving of Data.

Termination of Data Transmission or Reception.

Exercises.

References.

V. SYSTEM OPERATION.

14. System Startup.

Overview.

Bootstrapping.

The boot Program.

Kernel Initialization.

Assembly-Language Startup.

Machine-Dependent Initialization.

Message Buffer.

System Data Structures.

Autoconfiguration.

Device Probing.

Device Attachment.

New Autoconfiguration Data Structures.

New Autoconfiguration Functions.

Device Naming.

Machine-Independent Initialization.

User-Level Initialization.

/sbin/init.

/etc/rc.

/usr/libexec/getty.

/usr/bin/login.

System-Startup Topics.

Kernel Configuration.

System Shutdown and Autoreboot.

System Debugging.

Passage of Information To and From the Kernel.

Exercises.

References.
Glossary.

Index. 0201549794T04062001

Product Details

ISBN:
9780201549799
Author:
McKusick, Marshall Kirk
Author:
Bostic, Keith
Author:
Quarterman, John S.
Author:
Karels, Michael J.
Publisher:
Addison-Wesley Professional
Location:
Reading, Mass. :
Subject:
Technology
Subject:
Computers and computer technology
Subject:
Operating Systems - General
Subject:
Operating Systems - IBM Compatible
Subject:
Operating systems (computers)
Subject:
Unix (computer operating system)
Subject:
Operating systems
Subject:
UNIX
Copyright:
Edition Number:
2
Edition Description:
Includes bibliographical references and index.
Series:
Addison-Wesley UNIX and Open Systems Series
Series Volume:
45
Publication Date:
April 1996
Binding:
Hardcover
Grade Level:
Professional and scholarly
Language:
English
Illustrations:
Yes
Pages:
608
Dimensions:
9.47x6.60x1.38 in. 2.24 lbs.

Related Subjects

Computers and Internet » Operating Systems » General
Computers and Internet » Operating Systems » Unix » Unix Flavors

The Design and Implementation of the 4.4 BSD Operating System (Addison-Wesley UNIX and Open Systems Series)
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Product details 608 pages Addison-Wesley Professional - English 9780201549799 Reviews:
"Synopsis" by , This text describes the design and implementation of the 4.4 BSD operating system, presenting the technical information needed by BSD system programmers and application programmers.
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