From Fedora Project Wiki

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== Fedora Project ==
== Fedora Project ==


Red Hat is the [http://fedoraproject.org/sponsors 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 is the [http://fedoraproject.org/sponsors 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 and other free and open source projects.


== Red Hat Enterprise Linux ==
== Red Hat Enterprise Linux ==
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== Upstream Focus ==
== Upstream Focus ==


Fedora Project has a strong focus on [[ Staying_close_to_upstream_projects | 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.
Fedora Project has a strong focus on [https://docs.fedoraproject.org/en-US/package-maintainers/Staying_Close_to_Upstream_Projects/ staying close to upstream projects] as much as possible in all the different software it includes in the repository. 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 ==
== 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 commercial contributor] for several years and Red Hat developers are amoung the leading contributors to the Linux Kernel.


== Xorg ==
== Xorg ==
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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]   
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+2 and GTK+3 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 Shell -  Primary development by Owen Taylor and many Red Hat developers and interaction designers
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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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* Xorg: major contributions and maintenance.
* Xorg: major contributions and maintenance.


* [http://fedoraproject.org/wiki/RenderingProject AIGLX] : Compositing desktop framework.
* [[RenderingProject|AIGLX]] : Compositing desktop framework.


* virt-manager: written and maintained
* virt-manager: written and maintained
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** Continues long-standing work in same vein
** Continues long-standing work in same vein


* [https://fedorahosted.org/koji/ Koji] : written and maintained
* [https://pagure.io/koji Koji] : written and maintained
* [https://fedorahosted.org/mock/ Mock] : co-maintained
* [https://github.com/rpm-software-management/mock Mock] : co-maintained


== Administration Frameworks ==
== Administration Frameworks ==
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== Service Management ==
== Service Management ==
* systemd - Written and maintained


* booty - Written and maintained
* booty - Written and maintained
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* SCIM Table - Input Method Engine
* SCIM Table - Input Method Engine


* Transifex - Web Localization Infrastructure


== Virtualization  ==
== Cloud Computing and Virtualization  ==
 
* [http://openstack.org OpenStack]  -  The [http://www.networkworld.com/community/blog/red-hat-hp-lead-contributions-openstacks-havana-release leading contributor]


* [http://libvirt.org/ libvirt]: The Virtualization API
* [http://libvirt.org/ libvirt]: The Virtualization API
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* [http://libguestfs.org libguestfs] The virtual guest filesystem management API
* [http://libguestfs.org libguestfs] The virtual guest filesystem management API
* [https://browbeatproject.org Browbeat] OpenStack cloud performance tuning, analysis and scale tool


== Other Emerging Technologies Projects ==
== Other Emerging Technologies Projects ==
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== Upstream Developers ==
== 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.  
This is NOT a comprehensive list of all developers on major upstream projects but just some well known Red Hat employees from the past and now to show the breadth and depth of Red Hat sponsored development.  


TODO - Add many more


=== Linux Kernel ===
=== Linux Kernel ===
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=== Core components ===
=== Core components ===


* Ulrich Drepper - Glibc, lead maintainer
* Ulrich Drepper - Glibc ex-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, iwhd lead developer; Gnulib, diffutils, gzip, idutils, grep, patch, automake
* Siddhesh Poyarekar - Glibc developer
* Karel Zak - util-linux-ng, lead maintainer
* Gary Benson - GDB developer
* Jan Kratochvil - GDB ex-developer
* 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/backslash Harald Hoyer] - udev, systemd, lead developer/maintainer: dracut
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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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* Jonathan Blandford - early GNOME developer
* Jonathan Blandford - early GNOME developer
* Debarshi Ray - GNOME Online Accounts
* 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
* Jaroslav Reznik -  Fedora KDE maintainer (Polkit-qt) and Fedora Program Manager
* Dan Vrátil -  Telepathy KDE, KRandr


=== SELinux developers ===
=== SELinux developers ===

Latest revision as of 11:30, 9 October 2021

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 and other free and open source projects.

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 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 commercial contributor for several years and Red Hat developers are amoung 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+2 and GTK+3 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

  • systemd - Written and maintained
  • 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


Cloud Computing and 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
  • Browbeat OpenStack cloud performance tuning, analysis and scale tool

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 employees from the past and now to show the breadth and depth of Red Hat sponsored development.


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 ex-maintainer
  • Jakub Jelinek - GCC developer
  • Dodji Seketeli - GCC developer
  • Roland Mcgrath - Glibc developer
  • Siddhesh Poyarekar - Glibc developer
  • Gary Benson - GDB developer
  • Jan Kratochvil - GDB ex-developer
  • 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