DOCSLIB.ORG

Unix Portability Changes in V8.4

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Unix Portability Changes in V8.4 UNIX PORTABILITY CHANGES IN V8.4 Rupesh Shantamurty OpenVMS Engineering 1 © Copyright 2010 Hewlett-Packard Development Company, L.P. AGENDA –Overview of Unix Portability Initiative –Semaphores –UTF-8 support –GNV Update –Q & A 2 © Copyright 2010 Hewlett-Packard Development Company, L.P. UNIX PORTABILITY - OVERVIEW 3 © Copyright 2010 Hewlett-Packard Development Company, L.P. UNIX PORTABILITY INITIATIVE OBJECTIVE GOAL BENEFIT • Ease Porting of • OpenVMS will be • Less OpenVMS applications from like any other development UNIX, LINUX “UNIX flavor” for cost and Open easy application • Enhanced Source to portability application OpenVMS • Cost of porting portfolio on from UNIX to OpenVMS, OpenVMS is including Open comparable to Source porting one applications "flavor" of UNIX • Familiar UNIX- to another style development environment 4 © Copyright 2010 Hewlett-Packard Development Company, L.P. RECENT DEVELOPMENTS & V8.4 Byte Range File Lock APIs Standard Stat Locking Structure SEMAPHORES Symbolic Links POSIX style GNV Updates pathnames statvfs/fstatvfs Pthreads Encryption UTF-8 Routines Shared Objects SUPPORT 5 © Copyright 2010 Hewlett-Packard Development Company, L.P. SEMAPHORES 6 © Copyright 2010 Hewlett-Packard Development Company, L.P. INTRODUCTION - SEMAPHORES Semaphores - Inter Process Communication mechanism for synchronization across multiple processes. –System V Semaphores –POSIX Semaphores 7 © Copyright 2010 Hewlett-Packard Development Company, L.P. NEED FOR SEMAPHORES ON OPENVMS PRE V8.4 SOLUTION IN IMPACT V8.4 • Semaphore API Implements Reduces porting implementation was Semaphore APIs time Reduces cost of not available Applications using porting • Implement emulator semaphores can be Facilitates porting solutions ported without code of other Open Source • Performance issues change applications to due to layered OpenVMS emulator solutions 8 © Copyright 2010 Hewlett-Packard Development Company, L.P. SYSTEM V SEMAPHORE API Generates a standard inter process f t ok () communication key s e m ge t () Gets a set of semaphores Performs operations on semaphores in a s e mop () semaphore set s e m c tl() Semaphore control operations 9 © Copyright 2010 Hewlett-Packard Development Company, L.P. POSIX SEMAPHORE API Opens/creates a named semaphore for use by a s e m _ o p e n () process. s e m _ i n i t () Initializes an unnamed semaphore sem_getvalue () Gets the value of a specified semaphore. s e m _ w a i t () Performs a semaphore lock. sem_trywait () Conditionally performs a semaphore lock Performs a semaphore lock by waiting for a sem_timedwait () specified time. s e m _ p o s t () Unlocks a semaphore. s e m _ u n l i n k () Removes the specified named semaphore. sem_destroy () Destroys an unnamed semaphore. s e m _ c l o s e () De-allocates the specified named semaphore. 10 © Copyright 2010 Hewlett-Packard Development Company, L.P. USING SEMAPHORE API Application programs need to include the following header files • POSIX SEMAPHORE: #include<semaphore.h> • System V SEMAPHORE: #include <sys/ipc.h> #include <sys/sem.h> 11 © Copyright 2010 Hewlett-Packard Development Company, L.P. CONSIDERATIONS – System V Semaphores: • Maximum number of semaphore sets allowed on a system is 1024 • Maximum value of a semaphore is 32767 • Maximum number of SEM_UNDO operations allowed for a process is 1024. • No support for IPC_PRIVATE – POSIX Semaphores: • Unnamed semaphores not supported across processes 12 © Copyright 2010 Hewlett-Packard Development Company, L.P. UTF-8 SUPPORT 13 © Copyright 2010 Hewlett-Packard Development Company, L.P. INTRODUCTION –UTF-8 . UTF-8 (8-bit Unicode Transformation Format) is a variable-length character encoding for Unicode. UTF-8 can represent any character in the Unicode standard. UTF-8 is becoming the preferred encoding for e- mail, web pages. 14 © Copyright 2010 Hewlett-Packard Development Company, L.P. CRTL APIS SUPPORTING UTF-8 mkdir() stat() opendir() chdir() rmdir() chmod() creat() chown() open() readdir() rename() fopen() link() 15 © Copyright 2010 Hewlett-Packard Development Company, L.P. NEED FOR UTF-8 SUPPORT PRE V8.4 SOLUTION IN IMPACT V8.4 • UTF-8 character-set Support UTF-8 CRTL APIs support support was not character-set with UTF-8 file format available CRTL APIs specification E.g. CIFS support Applications with Japanese requiring this OpenVMS feature can be ported without code changes 16 © Copyright 2010 Hewlett-Packard Development Company, L.P. USING UTF-8 SUPPORT • $DEFINE / SYSTEM - $_ DECC$FILENAME_ENCODING_UTF8 “ENABLE” • $DEFINE / SYSTEM DECC$EFS_CHARSET “ENABLE” • Requirement: ODS-5 disk 17 © Copyright 2010 Hewlett-Packard Development Company, L.P. EXAMPLE USAGE OF UTF-8 SUPPORT 18 © Copyright 2010 Hewlett-Packard Development Company, L.P. GNV 19 © Copyright 2010 Hewlett-Packard Development Company, L.P. GNV V2.1-3 –Available @ Sourceforge –Changes : Support for Symlink Capability –> ln -s Installation changes Stability in setting up Mount Point Mixed Architecture Environments – Configuration files Bash – Command recall Improvements in cc wrapper mnt – improvement in record keeping 20 © Copyright 2010 Hewlett-Packard Development Company, L.P. GNV V2.1-3 – CALL TO ACTION –Community Participation is key –Want to contribute to GNV Project •Subscribe to the mailing list: https://lists.sourceforge.net/lists/listinfo/gnv-develop – Want to be part of GNV Developer Team •send a mail to -> [email protected] 21 © Copyright 2010 Hewlett-Packard Development Company, L.P. Q&A 22 © Copyright 2010 Hewlett-Packard Development Company, L.P..
Load more

Recommended publications
  • Oracle Solaris: the Carrier-Grade Operating System Technical Brief
    An Oracle White Paper February 2011 Oracle Solaris: The Carrier-Grade Operating System Oracle White Paper—Oracle Solaris: The Carrier-Grade OS Executive Summary.............................................................................1 ® Powering Communication—The Oracle Solaris Ecosystem..............3 Integrated and Optimized Stack ......................................................5 End-to-End Security ........................................................................5 Unparalleled Performance and Scalability.......................................6 Increased Reliability ........................................................................7 Unmatched Flexibility ......................................................................7 SCOPE Alliance ..............................................................................7 Security................................................................................................8 Security Hardening and Monitoring .................................................8 Process and User Rights Management...........................................9 Network Security and Encrypted Communications .......................10 Virtualization ......................................................................................13 Oracle VM Server for SPARC .......................................................13 Oracle Solaris Zones .....................................................................14 Virtualized Networking...................................................................15
    [Show full text]
  • Openvms Record Management Services Reference Manual
    OpenVMS Record Management Services Reference Manual Order Number: AA-PV6RD-TK April 2001 This reference manual contains general information intended for use in any OpenVMS programming language, as well as specific information on writing programs that use OpenVMS Record Management Services (OpenVMS RMS). Revision/Update Information: This manual supersedes the OpenVMS Record Management Services Reference Manual, OpenVMS Alpha Version 7.2 and OpenVMS VAX Version 7.2 Software Version: OpenVMS Alpha Version 7.3 OpenVMS VAX Version 7.3 Compaq Computer Corporation Houston, Texas © 2001 Compaq Computer Corporation Compaq, AlphaServer, VAX, VMS, the Compaq logo Registered in U.S. Patent and Trademark Office. Alpha, PATHWORKS, DECnet, DEC, and OpenVMS are trademarks of Compaq Information Technologies Group, L.P. in the United States and other countries. UNIX and X/Open are trademarks of The Open Group in the United States and other countries. All other product names mentioned herein may be the trademarks of their respective companies. Confidential computer software. Valid license from Compaq required for possession, use, or copying. Consistent with FAR 12.211 and 12.212, Commercial Computer Software, Computer Software Documentation, and Technical Data for Commercial Items are licensed to the U.S. Government under vendor’s standard commercial license. Compaq shall not be liable for technical or editorial errors or omissions contained herein. The information in this document is provided "as is" without warranty of any kind and is subject to change without notice. The warranties for Compaq products are set forth in the express limited warranty statements accompanying such products. Nothing herein should be construed as constituting an additional warranty.
    [Show full text]
  • Oracle Database Installation Guide 10G Release 2 (10.2)
    Oracle®[1] Database Installation Guide 11g Release 2 (11.2) for HP OpenVMS Itanium E56668-01 June 2015 Oracle Database Installation Guide, 11g Release 2 (11.2) for HP OpenVMS Itanium E56668-01 Copyright © 2008, 2015, Oracle and/or its affiliates. All rights reserved. Primary Author: Nisha Sridhar Contributors: Dave Hayter, Gary Huffman, Marc Noel, Chris Schuetz, David Miller, Kevin Duffy, Steve Holck, Grant Hayden, Gary Tate This software and related documentation are provided under a license agreement containing restrictions on use and disclosure and are protected by intellectual property laws. Except as expressly permitted in your license agreement or allowed by law, you may not use, copy, reproduce, translate, broadcast, modify, license, transmit, distribute, exhibit, perform, publish, or display any part, in any form, or by any means. Reverse engineering, disassembly, or decompilation of this software, unless required by law for interoperability, is prohibited. The information contained herein is subject to change without notice and is not warranted to be error-free. If you find any errors, please report them to us in writing. If this is software or related documentation that is delivered to the U.S. Government or anyone licensing it on behalf of the U.S. Government, then the following notice is applicable: U.S. GOVERNMENT END USERS: Oracle programs, including any operating system, integrated software, any programs installed on the hardware, and/or documentation, delivered to U.S. Government end users are "commercial computer software" pursuant to the applicable Federal Acquisition Regulation and agency-specific supplemental regulations. As such, use, duplication, disclosure, modification, and adaptation of the programs, including any operating system, integrated software, any programs installed on the hardware, and/or documentation, shall be subject to license terms and license restrictions applicable to the programs.
    [Show full text]
  • Software Product Description and Quickspecs
    VSI OpenVMS Alpha Version 8.4-2L2 Operating System DO-DVASPQ-01A Software Product Description and QuickSpecs PRODUCT NAME: VSI OpenVMS Alpha Version 8.4-2L2 DO-DVASPQ-01A This SPD and QuickSpecs describes the VSI OpenVMS Alpha Performance Release Operating System software, Version 8.4-2L2 (hereafter referred to as VSI OpenVMS Alpha V8.4-2L2). DESCRIPTION OpenVMS is a general purpose, multiuser operating system that runs in both production and development environments. VSI OpenVMS Alpha Version 8.4-2L2 is the latest release of the OpenVMS Alpha computing environment by VMS Software, Inc (VSI). VSI OpenVMS Alpha V8.4-2L2 is compiled to take advantage of architectural features such as byte and word memory reference instructions, and floating-point improvements, which are available only in HPE AlphaServer EV6 or later processors. This optimized release improves performance by taking advantage of faster hardware-based instructions that were previously emulated in software. NOTE: VSI OpenVMS Alpha V8.4-2L2 does not work on, and is not supported on, HPE AlphaServer pre-EV6 systems. OpenVMS Alpha supports HPE’s AlphaServer series computers. OpenVMS software supports industry standards, facilitating application portability and interoperability. OpenVMS provides symmetric multiprocessing (SMP) support for multiprocessing systems. The OpenVMS operating system can be tuned to perform well in a wide variety of environments. This includes combinations of compute-intensive, I/O-intensive, client/server, real-time, and other environments. Actual system performance depends on the type of computer, available physical memory, and the number and type of active disk and tape drives. The OpenVMS operating system has well-integrated networking, distributed computing, client/server, windowing, multi-processing, and authentication capabilities.
    [Show full text]
  • Introduction to Unix
    Introduction to Unix Rob Funk <[email protected]> University Technology Services Workstation Support http://wks.uts.ohio-state.edu/ University Technology Services Course Objectives • basic background in Unix structure • knowledge of getting started • directory navigation and control • file maintenance and display commands • shells • Unix features • text processing University Technology Services Course Objectives Useful commands • working with files • system resources • printing • vi editor University Technology Services In the Introduction to UNIX document 3 • shell programming • Unix command summary tables • short Unix bibliography (also see web site) We will not, however, be covering these topics in the lecture. Numbers on slides indicate page number in book. University Technology Services History of Unix 7–8 1960s multics project (MIT, GE, AT&T) 1970s AT&T Bell Labs 1970s/80s UC Berkeley 1980s DOS imitated many Unix ideas Commercial Unix fragmentation GNU Project 1990s Linux now Unix is widespread and available from many sources, both free and commercial University Technology Services Unix Systems 7–8 SunOS/Solaris Sun Microsystems Digital Unix (Tru64) Digital/Compaq HP-UX Hewlett Packard Irix SGI UNICOS Cray NetBSD, FreeBSD UC Berkeley / the Net Linux Linus Torvalds / the Net University Technology Services Unix Philosophy • Multiuser / Multitasking • Toolbox approach • Flexibility / Freedom • Conciseness • Everything is a file • File system has places, processes have life • Designed by programmers for programmers University Technology Services
    [Show full text]
  • Unix/Linux Command Reference
    Unix/Linux Command Reference .com File Commands System Info ls – directory listing date – show the current date and time ls -al – formatted listing with hidden files cal – show this month's calendar cd dir - change directory to dir uptime – show current uptime cd – change to home w – display who is online pwd – show current directory whoami – who you are logged in as mkdir dir – create a directory dir finger user – display information about user rm file – delete file uname -a – show kernel information rm -r dir – delete directory dir cat /proc/cpuinfo – cpu information rm -f file – force remove file cat /proc/meminfo – memory information rm -rf dir – force remove directory dir * man command – show the manual for command cp file1 file2 – copy file1 to file2 df – show disk usage cp -r dir1 dir2 – copy dir1 to dir2; create dir2 if it du – show directory space usage doesn't exist free – show memory and swap usage mv file1 file2 – rename or move file1 to file2 whereis app – show possible locations of app if file2 is an existing directory, moves file1 into which app – show which app will be run by default directory file2 ln -s file link – create symbolic link link to file Compression touch file – create or update file tar cf file.tar files – create a tar named cat > file – places standard input into file file.tar containing files more file – output the contents of file tar xf file.tar – extract the files from file.tar head file – output the first 10 lines of file tar czf file.tar.gz files – create a tar with tail file – output the last 10 lines
    [Show full text]
  • Openvms: an Introduction
    The Operating System Handbook or, Fake Your Way Through Minis and Mainframes by Bob DuCharme VMS Table of Contents Chapter 7 OpenVMS: An Introduction.............................................................................. 7.1 History..........................................................................................................................2 7.1.1 Today........................................................................................................................3 7.1.1.1 Popular VMS Software..........................................................................................4 7.1.2 VMS, DCL................................................................................................................4 Chapter 8 Getting Started with OpenVMS........................................................................ 8.1 Starting Up...................................................................................................................7 8.1.1 Finishing Your VMS Session...................................................................................7 8.1.1.1 Reconnecting..........................................................................................................7 8.1.2 Entering Commands..................................................................................................8 8.1.2.1 Retrieving Previous Commands............................................................................9 8.1.2.2 Aborting Screen Output.........................................................................................9
    [Show full text]
  • Openvms Security
    OpenVMS Security Presented by Paul Williams PARSEC Group 999 18th Street, Suite 1725 Denver, CO 80202 www.parsec.com | 888-4-PARSEC To Download this Presentation, please visit: http://www.parsec.com/public/openvmssecurity.pdf To E-mail Paul [email protected] www.parsec.com | 888-4-PARSEC Outline • OpenVMS Security Design • Physical Security • Object Security • UIC/ACL Security • User Access • Break-in Detection • Network and Internet Considerations • Encrypted Network Communication • Kerberos • Secure Socket Layer (SSL) Goals • Discuss the important points and consideration of OpenVMS Security • Concentrate on the mechanics and mechanisms of OpenVMS features. • Show how OpenVMS is one of the most secure operating systems on the market. OpenVMS Security Design • Security was designed into OpenVMS since V1.0 • Many different levels of security in OpenVMS Physical Security Object Security User Management Network Security • Has never had a virus Physical Security • System • System Console • Storage devices and media System Disk Data and Database Volumes Backups • Network devices and media Physical Security: System • Increase system reliability through restricted access Prevent intentional tampering and outage Prevent outage due to accidents • Prevent Front Panel Access Halts Reset/initializations Power switch/source Power on action settings (VAX) switch Physical Security: Console • Can be a big security hole for OpenVMS Anyone with physical access to the console can break into OpenVMS buy getting into the SYSBOOT utility. Then OpenVMS can be broken into: Buy redirecting startup Buy changing system parameters Physical Security: Getting to SYSBOOT on the Integrity Console Example • On the Integrity shutdown to the EFI Boot Manager and select the EFI Shell and create a alias.
    [Show full text]
  • Lecture 1: Introduction to UNIX
    The Operating System Course Overview Getting Started Lecture 1: Introduction to UNIX CS2042 - UNIX Tools September 29, 2008 Lecture 1: UNIX Intro The Operating System Description and History Course Overview UNIX Flavors Getting Started Advantages and Disadvantages Lecture Outline 1 The Operating System Description and History UNIX Flavors Advantages and Disadvantages 2 Course Overview Class Specifics 3 Getting Started Login Information Lecture 1: UNIX Intro The Operating System Description and History Course Overview UNIX Flavors Getting Started Advantages and Disadvantages What is UNIX? One of the first widely-used operating systems Basis for many modern OSes Helped set the standard for multi-tasking, multi-user systems Strictly a teaching tool (in its original form) Lecture 1: UNIX Intro The Operating System Description and History Course Overview UNIX Flavors Getting Started Advantages and Disadvantages A Brief History of UNIX Origins The first version of UNIX was created in 1969 by a group of guys working for AT&T's Bell Labs. It was one of the first big projects written in the emerging C language. It gained popularity throughout the '70s and '80s, although non-AT&T versions eventually took the lion's share of the market. Predates Microsoft's DOS by 12 years! Lecture 1: UNIX Intro The Operating System Description and History Course Overview UNIX Flavors Getting Started Advantages and Disadvantages Lecture Outline 1 The Operating System Description and History UNIX Flavors Advantages and Disadvantages 2 Course Overview Class Specifics 3
    [Show full text]
  • Getting Even More Grip on Your Security with Pointsecure Or
    OpenVMS and Security getting even more grip on your security with Pointsecure or NDC Gerrit Woertman VSI Professional Services Alliance member VSI OpenVMS trainer EMEA & VSI OpenVMS Ambassador [email protected] www.vmsconsultancy.com Agenda • OpenVMS and Security • EU security laws to report security issues • Non‐HPE/VSI Security packages • Pointsecure – PointAudit – System Detective • Networking Dynamics Corporation (NDC) – Peek & Spy – KEY Capture – Assassin • Questions OpenVMS and Security ‐ 1 • OpenVMS – secure by design • No viruses • One of the first to become US DoD C2‐rating • Declared “Cool and Unhackable” at 2001 DefCon9 as described in 4AA0‐2896ENW.pdf (HP, 11/2005) Alpha OpenVMS with the help of Pointsecure System Detective OpenVMS and Security ‐ 2 • OpenVMS has got optional security solutions – OpenSSL (Secure Socket Layer) https://www.openssl.org/ – Common Data Security Architecture (CDSA) – Kerberos • Everything fine? Seems so, but there is still need for more and better implementation – On VSI’s research list OpenVMS and Security – 3 • OpenVMS ‐ Linux – Windows • With 100% OpenVMS no problems – fine – That’s not real; today’s softwarestacks complex – Splendid isolation? • OpenSource – is that safe? ? OpenVMS and Security – 4 • From http://vmssoftware.com/products.html Unmatched Security Compare OpenVMS' security vulnerability record against other operating systems at CVE Details: http://www.cvedetails.com. The following are direct links to reports for OpenVMS, Linux and Windows: • OpenVMS http://www.cvedetails.com/product/4990/HP‐Openvms.html?vendor_id=10
    [Show full text]
  • Introduction to UNIX What Is UNIX? Why UNIX? Brief History of UNIX Early UNIX History UNIX Variants
    What is UNIX? A modern computer operating system Introduction to UNIX Operating system: “a program that acts as an intermediary between a user of the computer and the computer hardware” CS 2204 Software that manages your computer’s resources (files, programs, disks, network, …) Class meeting 1 e.g. Windows, MacOS Modern: features for stability, flexibility, multiple users and programs, configurability, etc. *Notes by Doug Bowman and other members of the CS faculty at Virginia Tech. Copyright 2001-2003. (C) Doug Bowman, Virginia Tech, 2001- 2 Why UNIX? Brief history of UNIX Used in many scientific and industrial settings Ken Thompson & Dennis Richie Huge number of free and well-written originally developed the earliest software programs versions of UNIX at Bell Labs for Open-source OS internal use in 1970s Internet servers and services run on UNIX Borrowed best ideas from other Oss Largely hardware-independent Meant for programmers and computer Based on standards experts Meant to run on “mini computers” (C) Doug Bowman, Virginia Tech, 2001- 3 (C) Doug Bowman, Virginia Tech, 2001- 4 Early UNIX History UNIX variants Thompson also rewrote the operating system Two main threads of development: in high level language of his own design Berkeley software distribution (BSD) which he called B. Unix System Laboratories System V Sun: SunOS, Solaris The B language lacked many features and Ritchie decided to design a successor to B GNU: Linux (many flavors) which he called C. SGI: Irix They then rewrote UNIX in the C FreeBSD programming language to aid in portability. Hewlett-Packard: HP-UX Apple: OS X (Darwin) … (C) Doug Bowman, Virginia Tech, 2001- 5 (C) Doug Bowman, Virginia Tech, 2001- 6 1 Layers in the UNIX System UNIX Structure User Interface The kernel is the core of the UNIX Library Interface Users system, controlling the system Standard Utility Programs hardware and performing various low- (shell, editors, compilers, etc.) System Interface calls User Mode level functions.
    [Show full text]
  • Oracle Rdb7™ Guide to Using the Oracle SQL/Services™ Client API
    Oracle Rdb7™ Guide to Using the Oracle SQL/Services™ Client API Release 7.0 Part No. A41981-1 ® Guide to Using the Oracle SQL/Services Client API Release 7.0 Part No. A41981-1 Copyright © 1993, 1996, Oracle Corporation. All rights reserved. This software contains proprietary information of Oracle Corporation; it is provided under a license agreement containing restrictions on use and disclosure and is also protected by copyright law. Reverse engineering of the software is prohibited. The information contained in this document is subject to change without notice. If you find any problems in the documentation, please report them to us in writing. Oracle Corporation does not warrant that this document is error free. Restricted Rights Legend Programs delivered subject to the DOD FAR Supplement are ’commercial computer software’ and use, duplication and disclosure of the programs shall be subject to the licensing restrictions set forth in the applicable Oracle license agreement. Otherwise, programs delivered subject to the Federal Acquisition Regulations are ’restricted computer software’ and use, duplication and disclosure of the programs shall be subject to the restrictions in FAR 52.227-14, Rights in Data—General, including Alternate III (June 1987). Oracle Corporation, 500 Oracle Parkway, Redwood City, CA 94065. The programs are not intended for use in any nuclear, aviation, mass transit, medical, or other inherently dangerous applications. It shall be the licensee’s responsibility to take all appropriate fail-safe, back up, redundancy and other measures to ensure the safe use of such applications if the programs are used for such purposes, and Oracle disclaims liability for any damages caused by such use of the programs.
    [Show full text]