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{{autolang|base=yes}}
{{Admon/note |This document is maintained by [[User:Sundaram | Rahul Sundaram]]. Feel free to edit the wiki or contact the maintainer for any kind of feedback.}}  
{{Admon/note |This document is maintained by [[User:Sundaram | Rahul Sundaram]]. Feel free to edit the wiki or contact the maintainer for any kind of feedback.}}  


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== Linux Kernel ==
== Linux Kernel ==


Red Hat is the [http://www.press.redhat.com/2008/04/08/red-hat-leads-open-source-contributions-to-kernel/ largest contributor] and Red Hat developers are the leading contributors to the Linux Kernel.
Red Hat is the [https://www.redhat.com/about/news/archive/2008/4/red-hat-leads-open-source-contributions-to-kernel largest contributor] and Red Hat developers are the leading contributors to the Linux Kernel.


== Xorg ==
== Xorg ==
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* [http://www.jboss.com//exadel_press Exadel]  
* [http://www.jboss.com//exadel_press Exadel]  


* [http://www.redhat.com/about/news/prarchive/2007/next.html MetaMatrix]  
* [http://www.redhat.com/about/news/prarchive/2007/next.html MetaMatrix]


[http://www.redhat.com/about/companyprofile/history/ Source for these information]
* Red Hat played an instrumental role in encouraging Google to Open Source the Google Plugin for Eclipse (Eclipse tooling for GWT and GAE). [http://googlewebtoolkit.blogspot.com/2011/11/google-plugin-for-eclipse-gpe-is-now.html More information about the Google Plugin for Eclipse]


[http://www.redhat.com/about/companyprofile/history/ Source for dates of acquisitions, where applicable]


=== eCos ===
=== eCos ===
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== Free Desktop ==
== Free Desktop ==


=== Fonts ===
=== Desktop Software ===
 
* [http://fedorahosted.org/lohit Lohit] Indic Fonts
* [http://www.press.redhat.com/2007/05/09/liberation-fonts/ Liberation fonts]  which provide Free metric equivalents to key Microsoft fonts


=== Desktop Software ===
Red Hat is the leading contributor to GNOME Desktop as [http://www.redhat.com/about/news/prarchive/2010/gnome-desktop-project.html shown] by a [http://press.redhat.com/2010/08/02/gnome-study-shows-red-hat-desktop-development-lead/ GNOME census] 


* Firefox: we added support for the GTK+ and GTK+2 toolkits.  Pango support, GNOME Integration.  Current upstream contributions include security patches, and co-ownership of various linux-specific pieces of the project.
* Firefox: we added support for the GTK+ and GTK+2 toolkits.  Pango support, GNOME Integration.  Current upstream contributions include security patches, and co-ownership of various linux-specific pieces of the project.
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* pango: originally written and maintained
* pango: originally written and maintained


* glib, gtk+: most primary maintainers and developer work
* Evolution:  all primary developers
 
* glib, gtk+: most primary maintainers


* metacity: written and maintained
* metacity: written and maintained
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* D-Bus: written (employee) and maintained
* D-Bus: written (employee) and maintained


* DeviceKit: written and maintained
* udisks, upower : written and maintained


* PolicyKit: written (employee) and maintained
* PolicyKit: written (employee) and maintained
* HAL: written (employee) and maintained


* Avahi: maintained
* Avahi: maintained
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* OpenOffice.org: fontconfig font/glyph fallback, headless plugin, xdg-userdirs, email-mailmerge backend, MSWord 2.0 filter, gcj port of Java dependencies, ppc64 port, co-author on gnome dialogs, x86_64 port, ...
* OpenOffice.org: fontconfig font/glyph fallback, headless plugin, xdg-userdirs, email-mailmerge backend, MSWord 2.0 filter, gcj port of Java dependencies, ppc64 port, co-author on gnome dialogs, x86_64 port, ...
* LibreOffice: as OpenOffice.org, plus Writer and Calc core, framework, s390x port, ...


* vino: written and maintained
* vino: written and maintained
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* Ogg Theora: major contributions and maintenance
* Ogg Theora: major contributions and maintenance
=== Fonts ===
* [http://fedorahosted.org/lohit Lohit] Indic Fonts
* [http://www.press.redhat.com/2007/05/09/liberation-fonts/ Liberation fonts]  which provide Free metric equivalents to key Microsoft fonts


== The Core Operating System ==
== The Core Operating System ==
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**MLS Policy
**MLS Policy
**Setroubleshoot
**Setroubleshoot
**sVirt
**sandbox
* Kernel 2.6 Audit subsystem - written and maintained
* Kernel 2.6 Audit subsystem - written and maintained


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* abrt - development
* abrt - development
* [https://dracut.wiki.kernel.org/ dracut] - developed and maintained
* [http://www.freedesktop.org/wiki/Software/systemd systemd] - developed and maintained
* udev - developed and maintained


== Key Open Source Development Tools ==
== Key Open Source Development Tools ==
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* gcc and gcj - Major contributions
* gcc and gcj - Major contributions
* [http://www.gnu.org/software/autoconf/ Autoconf] - Maintained


* binutils -
* binutils -
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* [http://www.gnu.org/software/gnulib/ Gnulib]  - GNU Portability Library - Major contributions. Written and maintained.
* [http://www.gnu.org/software/gnulib/ Gnulib]  - GNU Portability Library - Major contributions. Written and maintained.
* [http://www.gnu.org/software/m4/ M4] - Maintained


* Eclipse
* Eclipse
* [http://sourceware.org/eclipse/autotools/ Autotools plugin] :  written and maintained
** [http://eclipse.org/linuxtools/ Autotools plugin] :  written and maintained
* [https://admin.fedoraproject.org/pkgdb/packages/name/eclipse-rpm-editor RPM Specfile editor] :  written and co-maintained
** [http://eclipse.org/linuxtools/ OProfile plugin] :  written and maintained
** [http://eclipse.org/linuxtools/ Valgrind plugin] :  written and maintained
** [http://eclipse.org/linuxtools/ SystemTap-based call graph plugin] :  written and maintained
** [http://eclipse.org/linuxtools/ ChangeLog plugin] :  written and maintained
** [http://eclipse.org/linuxtools RPM Specfile editor] :  written and co-maintained
** On-going work to ensure upstream releases work for Linux distributions (aka "eclipse-build")
** Continues long-standing work in same vein
 
* [https://fedorahosted.org/koji/ Koji] : written and maintained
* [https://fedorahosted.org/koji/ Koji] : written and maintained
* [https://fedorahosted.org/mock/ Mock] : co-maintained
* [https://fedorahosted.org/mock/ Mock] : co-maintained
* On-going work to ensure upcoming 3.4 release works for Linux distributions
* Continues long-standing work in same vein


== Administration Frameworks ==
== Administration Frameworks ==
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* gettext
* gettext


* [http://code.google.com/p/ibus/ IBus] Intelligent Input Bus for Linux / Unix OS, upstream: including ibus-anthy, ibus-chewing, ibus-m17n, ibus-pinyin, ibus-qt, ibus-sayura, ibus-table
* [http://code.google.com/p/ibus/ IBus] Intelligent Input Bus for Linux / Unix OS, upstream: including ibus-anthy, ibus-chewing, ibus-m17n, ibus-pinyin, ibus-qt, ibus-sayura, ibus-table, ibus-rawcode


* [https://fedorahosted.org/liberation-fonts/ Liberation Fonts] - Document Portability Fonts, upstream
* [https://fedorahosted.org/liberation-fonts/ Liberation Fonts] - Document Portability Fonts, upstream
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* Chuck Ebbert - Fedora kernel maintainer
* Chuck Ebbert - Fedora kernel maintainer
* Eric Paris - LSM/SELinux/Audit/Capabilities maintainer
* Eric Paris - LSM/SELinux/Audit/Capabilities maintainer
* Eugene Teo - Security Response
* Kay Sievers - Hotplug


=== Core components ===
=== Core components ===
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* Ulrich Drepper - Glibc, lead maintainer
* Ulrich Drepper - Glibc, lead maintainer
* Jakub Jelinek - GCC developer
* Jakub Jelinek - GCC developer
* Dodji Seketeli - GCC developer
* Roland Mcgrath - Glibc developer
* Roland Mcgrath - Glibc developer
* Jim Meyering - Coreutils, Parted, lead developer; Gnulib, diffutils, gzip, idutils, grep
* Siddhesh Poyarekar - Glibc developer
* Karel Zak - util-linux-ng, lead maintainer
* Gary Benson - GDB developer
* Jan Kratochvil - GDB maintainer
* Keith Seitz - GDB developer
* Pedro Alves - GDB maintainer
* Phil Muldoon - GDB developer
* Sergio Durigan Junior - GDB developer
* Tom Tromey - GDB maintainer
* [http://www.ohloh.net/accounts/kzak Karel Zak] - util-linux, lead maintainer
* Eric Blake - M4, Autoconf, lead developer; Gnulib, findutils
* Eric Blake - M4, Autoconf, lead developer; Gnulib, findutils
* [http://www.ohloh.net/accounts/backslash Harald Hoyer] - udev, systemd, lead developer/maintainer: dracut
* [http://www.ohloh.net/accounts/kaysievers Kay Sievers] - systemd, udev, lead developer/maintainer
* [http://www.ohloh.net/accounts/mezcalero Lennart Poettering] - systemd, lead developer/maintainer


=== Xorg developers ===
=== Xorg developers ===
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=== GNOME developers ===
=== GNOME developers ===


* Mathias Clasen - GTK, lead maintainer
* Matthias Clasen - GTK, lead maintainer
* Owen Taylor - GTK developer
* Owen Taylor - GTK developer
* Dan Williams - NetworkManager lead maintainer
* Dan Williams - NetworkManager lead maintainer
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* William Jon McCann - GDM. ConsoleKit developer
* William Jon McCann - GDM. ConsoleKit developer
* Jonathan Blandford - early GNOME developer
* Jonathan Blandford - early GNOME developer
* Debarshi Ray - GNOME Online Accounts
* Dodji Seketeli - Nemiver Debugger, lead maintainer


=== KDE developers ===
=== KDE developers ===


* Than Ngo - Fedora KDE maintainer
* Than Ngo - Fedora KDE maintainer
* Lukáš Tinkl - Fedora KDE maintainer
* Lukáš Tinkl - Fedora KDE maintainer (Solid, PowerDevil, kdelibs)
* Jaroslav Reznik -  Fedora KDE maintainer (Polkit-qt) and Fedora Program Manager
* Dan Vrátil -  Telepathy KDE, KRandr


=== SELinux developers ===
=== SELinux developers ===
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* Dan Walsh - SELinux Policy and Userspace maintainer
* Dan Walsh - SELinux Policy and Userspace maintainer
* Eric Paris - SELinux Kernel Maintainer
* Eric Paris - SELinux Kernel Maintainer
* James Morris - SELinux Kernel Maintainer
* Paul Moore - SELinux Kernel Maintainer
* Miroslav Grepl - SELinux Policy Maintainer
* Miroslav Grepl - SELinux Policy Maintainer
* John Dennis - SETroubleshoot Maintainer


=== OpenJDK developers ===
=== OpenJDK developers ===
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* Rahul Bhalerao
* Rahul Bhalerao
* Sean Flanigan
* Sean Flanigan
* [[User:Fujiwara|Takao Fujiwara]]
=== LibreOffice developers ===
* Caolán McNamara
* David Tardon
* Stephan Bergmann
* Michael Stahl
* Eike Rathke


== References ==
== References ==

Revision as of 01:51, 18 May 2013

Note.png
This document is maintained by Rahul Sundaram. Feel free to edit the wiki or contact the maintainer for any kind of feedback.

Red Hat has contributed extensively to Free and Open Source software. A partial list of software that Red Hat has contributed towards include the following.

Red Hat has a similar page with many more details on its involvement, and a list of projects that Red Hat is heavily involved with.

Fedora Project

Red Hat is the primary sponsor of Fedora Project and provides hosting, engineering and other resources. It has several hundred active developers participating and leading the project in different ways in coordination with the volunteer community members. It is a highly successful model pioneered by Red Hat within the Fedora Project that has inspired several other distributions like OpenSUSE and free software projects like MySQL and OpenSolaris.

Red Hat Enterprise Linux

Red Hat Enterprise Linux is a open source product based on Fedora and commercially supported by Red Hat.

Upstream Focus

Fedora Project has a strong focus on staying close to upstream projects as much as possible in all the different software it includes in the repository. The following is a general set of best practice guidelines on why this is a good idea, tips for sending your patches upstream, and the potential exceptions Fedora might make. The primary goal is to share the benefits of a common codebase for end users and developers while simultaneously reducing unnecessary maintenance efforts.

Linux Kernel

Red Hat is the largest contributor and Red Hat developers are the leading contributors to the Linux Kernel.

Xorg

Red Hat is also the largest contributor to Xorg according to this report.

Proprietary Software Freed

  • Sistina GFS file system, LVM2 and associated clustering tools acquired for 31 million dollars and completely released as Free and open source software

Source for dates of acquisitions, where applicable

eCos

Red Hat donated all the eCos copyrights to FSF

Free Desktop

Desktop Software

Red Hat is the leading contributor to GNOME Desktop as shown by a GNOME census

  • Firefox: we added support for the GTK+ and GTK+2 toolkits. Pango support, GNOME Integration. Current upstream contributions include security patches, and co-ownership of various linux-specific pieces of the project.
  • GNOME Shell - Primary development by Owen Taylor and many Red Hat developers and interaction designers
  • gnome.org infrastructure, hosting and bandwidth
  • Plymouth: graphical boot system
  • pango: originally written and maintained
  • Evolution: all primary developers
  • glib, gtk+: most primary maintainers
  • metacity: written and maintained
  • nautilus: co-maintained
  • udisks : originally written and maintained
  • upower: originally written and maintained
  • gnome-panel: co-maintained
  • gnome-session: maintained
  • gnome-power-manager: written (employee) and maintained
  • vte: written and maintained
  • cairo: written (employee) and maintained
  • pixman: maintained
  • gconf: written and maintained
  • palimpsest: written (employee) and maintained
  • D-Bus: written (employee) and maintained
  • udisks, upower : written and maintained
  • PolicyKit: written (employee) and maintained
  • Avahi: maintained
  • PulseAudio: maintained
  • gnome-keyring: written and maintained
  • gnome control-center: co-maintained
  • evince: written and maintained
  • NetworkManager: written and maintained
  • OpenOffice.org: fontconfig font/glyph fallback, headless plugin, xdg-userdirs, email-mailmerge backend, MSWord 2.0 filter, gcj port of Java dependencies, ppc64 port, co-author on gnome dialogs, x86_64 port, ...
  • LibreOffice: as OpenOffice.org, plus Writer and Calc core, framework, s390x port, ...
  • vino: written and maintained
  • gnome-menus: written and maintained
  • sabayon: written
  • dogtail - UI automation and testing framework
  • Xorg: major contributions and maintenance.
  • AIGLX : Compositing desktop framework.
  • virt-manager: written and maintained
  • Ogg Theora: major contributions and maintenance

Fonts

The Core Operating System

  • LVM2, md - maintained
  • KVM virtualization- developed and maintained
  • Autofs - maintained
  • SELinux
    • Maintains User space tools
    • Targeted policy
    • MLS Policy
    • Setroubleshoot
    • sVirt
    • sandbox
  • Kernel 2.6 Audit subsystem - written and maintained
  • ipsec - maintained
  • crypto - maintained
  • ext3 - Written and maintained
  • vfs- Written and maintained
  • usb - patches
  • Kernel 2.6 Virtual Memory manager - Written and maintained
  • kernel 2.6 CPU scheduler - Written and maintained
  • netdump and netconsole
  • NPTL - Written and maintained
  • Tux - Written and maintained
  • several SATA drivers
  • Several network drivers
  • Network stack
  • parted - co-maintained
  • grub - development
  • util-linux-ng - maintained
  • rsyslog - co-maintained, significant influence
  • cronie - development
  • abrt - development
  • dracut - developed and maintained
  • udev - developed and maintained

Key Open Source Development Tools

  • glibc - Major contributions. Maintained.
  • gcc and gcj - Major contributions
  • binutils -
  • diffutils - Maintained
  • elfutils - Written and maintained
  • gzip - Maintained
  • libuser
  • gamin - FAM replacement library done within Fedora - Written and maintained
  • Gnulib - GNU Portability Library - Major contributions. Written and maintained.
  • M4 - Maintained
  • Koji : written and maintained
  • Mock : co-maintained

Administration Frameworks

  • RPM - Written and maintained
  • up2date - Written and maintained
  • anaconda - Written and maintained
  • firstboot - Written and maintained
  • yum - Maintained
  • func - Written and maintained

System Clustering

  • gfs - Written (Sistina) and maintained
  • gfs2 - Written and maintained
  • dlm - Written and maintained
  • gulm - Written and maintained
  • cman - Written and maintained
  • rgmanager - Written and maintained
  • ccs - Written and maintained
  • fence - Written and maintained
  • system-config-cluster - Written and maintained
  • gnbd - Written and maintained
  • dmraid - Written and maintained
  • bddraid - Written and maintained
  • csnap - Written and maintained
  • JFFS2

Service Management

  • booty - Written and maintained
  • chkconfig
  • initscripts
  • kudzu - Written and maintained
  • MAKEDEV
  • mkbootdisk
  • mkinitrd - Written and maintained
  • ntsysv - Written and maintained
  • rhpl - Written and maintained
  • rootfiles
  • sysreport - Written and maintained
  • sos - Written and Maintained

Internationalization

(Ascending Sorted)

  • CJK Uni Fonts - Chinese Unicode Fonts
  • gettext
  • IBus Intelligent Input Bus for Linux / Unix OS, upstream: including ibus-anthy, ibus-chewing, ibus-m17n, ibus-pinyin, ibus-qt, ibus-sayura, ibus-table, ibus-rawcode
  • Lohit Indic Fonts - Upstream
  • M17N - Indic Input Method Engine
  • PAPS text printing filter
  • SCIM - Input Method Engine Framework
  • SCIM Anthy, Anthy - Japanese Input Method Engine
  • SCIM Chewing, Chewing - Chinese Input Method Engine
  • SCIM Hangul - Korean Input Method Engine
  • SCIM PinYin - Chinese Input Method Engine
  • SCIM Table - Input Method Engine
  • Transifex - Web Localization Infrastructure

Virtualization

  • oVirt: The web based virtualization management app
  • VirtInst A python library for simplifying provisioning of guest VMs with libvirt
  • sVirt SVirt it the integration of Mandatory Access Control (MAC) security and Linux-based virtualization
  • Supporting Xen virtualization
  • Sponsoring KVM hypervisor development
  • Spice The SPICE remote desktop / VDI protocol & implementation
  • libguestfs The virtual guest filesystem management API

Other Emerging Technologies Projects

  • Cft: Record configuration changes and export as puppet manifest
  • Augeas: Configuration editing tool and API
  • NetCF The network interface configuration API

Other

  • cdparanoia - maintained

Upstream Developers

This is not a comprehensive list of all developers on major upstream projects but just some well known Red Hat employeees from the past and now to show the breadth and depth of Red Hat sponsored development.

TODO - Add many more

Linux Kernel

  • Alan Cox - Core developer, numerous contributions
  • Ingo Molnar - x86 subsystem maintainer
  • Al Viro - VFS subsystem maintainer, #1 committer according to Linux Foundation report
  • David Miller - Sparc Port maintainer, #2 committer according to Linux Foundation report
  • Jeff Garzik - Sata subsystem maintainer
  • John Linville - Wireless subsystem maintainer
  • Stephen Tweedie - Ext3 filesystem developer
  • Eric Sandeen - XFS, Ext4 filesystem developer
  • Josef Bacik - Btrfs filesystem developer
  • Rik Van Riel - VM developer
  • Ric Wheeler - Filesystem developer
  • Val Henson - Filesystem developer
  • Dave Jones - Fedora kernel maintainer
  • Kyle McMartin - Fedora kernel maintainer
  • Chuck Ebbert - Fedora kernel maintainer
  • Eric Paris - LSM/SELinux/Audit/Capabilities maintainer
  • Eugene Teo - Security Response
  • Kay Sievers - Hotplug

Core components

  • Ulrich Drepper - Glibc, lead maintainer
  • Jakub Jelinek - GCC developer
  • Dodji Seketeli - GCC developer
  • Roland Mcgrath - Glibc developer
  • Siddhesh Poyarekar - Glibc developer
  • Gary Benson - GDB developer
  • Jan Kratochvil - GDB maintainer
  • Keith Seitz - GDB developer
  • Pedro Alves - GDB maintainer
  • Phil Muldoon - GDB developer
  • Sergio Durigan Junior - GDB developer
  • Tom Tromey - GDB maintainer
  • Karel Zak - util-linux, lead maintainer
  • Eric Blake - M4, Autoconf, lead developer; Gnulib, findutils
  • Harald Hoyer - udev, systemd, lead developer/maintainer: dracut
  • Kay Sievers - systemd, udev, lead developer/maintainer
  • Lennart Poettering - systemd, lead developer/maintainer

Xorg developers

  • Dave Airlie - Direct Rendering Infrastructure, ATI drivers developer
  • Peter Hutterer - #1 Xorg committer, MPX (multi pointer X) developer
  • Kristian Høgsberg - Compositing desktop (Underlying feature for Compiz) including AIGLX
  • Adam Jackson - Xorg release engineer and core developer
  • Kevin E Martin
  • Rik Faith
  • Søren Sandmann Pedersen
  • Ben Skeggs

GNOME developers

  • Matthias Clasen - GTK, lead maintainer
  • Owen Taylor - GTK developer
  • Dan Williams - NetworkManager lead maintainer
  • David Zeuthen - DeviceKit/HAL, PolicyKit lead maintainer
  • John Palmeri - D-Bus, lead maintainer
  • Ray Strode - GDM developer
  • Colin Walters - D-Bus developer
  • Richard Hughes - gnome-power-manager, PackageKit lead maintainer
  • Bastian Nocera - Totem, lead maintainer
  • Dan Winship - core GNOME developer
  • William Jon McCann - GDM. ConsoleKit developer
  • Jonathan Blandford - early GNOME developer
  • Debarshi Ray - GNOME Online Accounts
  • Dodji Seketeli - Nemiver Debugger, lead maintainer

KDE developers

  • Than Ngo - Fedora KDE maintainer
  • Lukáš Tinkl - Fedora KDE maintainer (Solid, PowerDevil, kdelibs)
  • Jaroslav Reznik - Fedora KDE maintainer (Polkit-qt) and Fedora Program Manager
  • Dan Vrátil - Telepathy KDE, KRandr

SELinux developers

  • Dan Walsh - SELinux Policy and Userspace maintainer
  • Eric Paris - SELinux Kernel Maintainer
  • Paul Moore - SELinux Kernel Maintainer
  • Miroslav Grepl - SELinux Policy Maintainer

OpenJDK developers

Current team

  • Lillian Angel
  • Gary Benson
  • Deepak Bhole
  • Andrew Haley
  • Andrew Hughes
  • Ioana Ivan
  • Omair Majid
  • Mark Wielaard

Former members

  • Thomas Fitzsimmons
  • Kyle Galloway
  • Francis Kung
  • Keith Seitz
  • Joshua Sumali

Internationalization developers

(Ascending Sorted)

  • Akira Tagoh
  • Asgeir Frimannsson
  • Caius Chance
  • Dean Chen
  • James Ni
  • Jens Petersen
  • Parag Nemade
  • Peng Huang
  • Pravin Satpute
  • Rahul Bhalerao
  • Sean Flanigan
  • Takao Fujiwara

LibreOffice developers

  • Caolán McNamara
  • David Tardon
  • Stephan Bergmann
  • Michael Stahl
  • Eike Rathke

References