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services: 'polkit-service-type' can now be extended.
* gnu/packages/polkit.scm (polkit)[source]: Adjust snippet so that rules and actions are looked for under /etc/polkit-1. * gnu/services/desktop.scm (<polkit-configuration>): New record type. (polkit-directory, polkit-etc-files, polkit-setuid-programs): New procedures. (polkit-service-type)[compose, extend]: New fields. (polkit-service): Refine docstring. (colord-service-type): Extend POLKIT-SERVICE-TYPE. (elogind-configuration-file): Extend POLKIT-SERVICE-TYPE. * doc/guix.texi (Desktop Services): Update 'polkit-service' documentation.
This commit is contained in:
Ludovic Courtès
parent
67010dd886
commit
222e3319bd
3 changed files with 125 additions and 72 deletions
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@ -6716,12 +6716,13 @@ their default values are:
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@deffn {Scheme Procedure} polkit-service @
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[#:polkit @var{polkit}]
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Return a service that runs the Polkit privilege manager.
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@uref{http://www.freedesktop.org/wiki/Software/polkit/, Polkit} allows
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system administrators to grant access to privileged operations in a
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structured way. For example, polkit rules can allow a logged-in user
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whose session is active to shut down the machine, if there are no other
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users active.
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Return a service that runs the
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@uref{http://www.freedesktop.org/wiki/Software/polkit/, Polkit privilege
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management service}, which allows system administrators to grant access to
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privileged operations in a structured way. By querying the Polkit service, a
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privileged system component can know when it should grant additional
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capabilities to ordinary users. For example, an ordinary user can be granted
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the capability to suspend the system if the user is logged in locally.
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@end deffn
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@deffn {Scheme Procedure} upower-service [#:upower @var{upower}] @
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@ -65,18 +65,16 @@ (define-public polkit
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(substitute* "src/polkitbackend/polkitbackendjsauthority.c"
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(("systemd") "elogind"))
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(substitute* "src/polkitagent/polkitagentsession.c"
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(("PACKAGE_PREFIX \"/lib/polkit-1/polkit-agent-helper-1\"")
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"\"/run/setuid-programs/polkit-agent-helper-1\""))
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;; GuixSD's polkit service stores actions under
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;; /etc/polkit-1/actions.
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(substitute* "src/polkitbackend/polkitbackendinteractiveauthority.c"
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(("PACKAGE_DATA_DIR \"/polkit-1/actions\"")
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"\"/run/current-system/profile/share/polkit-1/actions\""))
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(substitute* "src/polkitbackend/polkitbackendjsauthority.c"
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(("PACKAGE_SYSCONF_DIR \"/polkit-1/rules.d\"")
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"\"/run/current-system/profile/etc/polkit-1/rules.d\""))
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(substitute* "src/polkitbackend/polkitbackendjsauthority.c"
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(("PACKAGE_DATA_DIR \"/polkit-1/rules.d\"")
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"\"/run/current-system/profile/share/polkit-1/rules.d\""))))))
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"PACKAGE_SYSCONF_DIR \"/polkit-1/actions\""))
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;; Set the setuid helper's real location.
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(substitute* "src/polkitagent/polkitagentsession.c"
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(("PACKAGE_PREFIX \"/lib/polkit-1/polkit-agent-helper-1\"")
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"\"/run/setuid-programs/polkit-agent-helper-1\""))))))
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(build-system gnu-build-system)
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(inputs
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`(("expat" ,expat)
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@ -224,52 +224,6 @@ (define* (upower-service #:key (upower upower)
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(critical-power-action critical-power-action))))
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(service upower-service-type config)))
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;;;
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;;; Colord D-Bus service.
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;;;
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(define %colord-activation
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#~(begin
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(use-modules (guix build utils))
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(mkdir-p "/var/lib/colord")
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(let ((user (getpwnam "colord")))
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(chown "/var/lib/colord"
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(passwd:uid user) (passwd:gid user)))))
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(define %colord-accounts
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(list (user-group (name "colord") (system? #t))
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(user-account
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(name "colord")
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(group "colord")
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(system? #t)
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(comment "colord daemon user")
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(home-directory "/var/empty")
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(shell #~(string-append #$shadow "/sbin/nologin")))))
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(define colord-service-type
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(service-type (name 'colord)
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(extensions
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(list (service-extension account-service-type
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(const %colord-accounts))
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(service-extension activation-service-type
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(const %colord-activation))
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;; Colord is a D-Bus service that dbus-daemon can
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;; activate.
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(service-extension dbus-root-service-type list)
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;; Colord provides "color device" rules for udev.
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(service-extension udev-service-type list)))))
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(define* (colord-service #:key (colord colord))
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"Return a service that runs @command{colord}, a system service with a D-Bus
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interface to manage the color profiles of input and output devices such as
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screens and scanners. It is notably used by the GNOME Color Manager graphical
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tool. See @uref{http://www.freedesktop.org/software/colord/, the colord web
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site} for more information."
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(service colord-service-type colord))
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;;;
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;;; GeoClue D-Bus service.
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@ -383,6 +337,14 @@ (define* (geoclue-service #:key (geoclue geoclue)
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;;; Polkit privilege management service.
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;;;
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(define-record-type* <polkit-configuration>
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polkit-configuration make-polkit-configuration
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polkit-configuration?
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(polkit polkit-configuration-polkit ;<package>
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(default polkit))
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(actions polkit-configuration-actions ;list of <package>
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(default '())))
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(define %polkit-accounts
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(list (user-group (name "polkitd") (system? #t))
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(user-account
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@ -396,9 +358,31 @@ (define %polkit-accounts
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(define %polkit-pam-services
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(list (unix-pam-service "polkitd")))
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(define (polkit-directory packages)
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"Return a directory containing an @file{actions} and possibly a
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@file{rules.d} sub-directory, for use as @file{/etc/polkit-1}."
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(computed-file "etc-polkit-1"
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#~(begin
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(use-modules (guix build union) (srfi srfi-26))
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(union-build #$output
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(map (cut string-append <>
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"/share/polkit-1")
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(list #$@packages))))
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#:modules '((guix build union))))
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(define polkit-etc-files
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(match-lambda
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(($ <polkit-configuration> polkit packages)
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`(("polkit-1" ,(polkit-directory packages))))))
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(define polkit-setuid-programs
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(match-lambda
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(($ <polkit-configuration> polkit)
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(list #~(string-append #$polkit
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"/lib/polkit-1/polkit-agent-helper-1")))))
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(define polkit-service-type
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;; TODO: Make it extensible so it can collect policy files from other
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;; services.
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(service-type (name 'polkit)
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(extensions
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(list (service-extension account-service-type
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@ -406,15 +390,83 @@ (define polkit-service-type
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(service-extension pam-root-service-type
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(const %polkit-pam-services))
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(service-extension dbus-root-service-type
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list)))))
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(compose
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list
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polkit-configuration-polkit))
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(service-extension etc-service-type
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polkit-etc-files)
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(service-extension setuid-program-service-type
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polkit-setuid-programs)))
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;; Extensions are lists of packages that provide polkit rules
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;; or actions under share/polkit-1/{actions,rules.d}.
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(compose concatenate)
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(extend (lambda (config actions)
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(polkit-configuration
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(inherit config)
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(actions
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(append (polkit-configuration-actions config)
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actions)))))))
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(define* (polkit-service #:key (polkit polkit))
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"Return a service that runs the @command{polkit} privilege management
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service. By querying the @command{polkit} service, a privileged system
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component can know when it should grant additional capabilities to ordinary
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users. For example, an ordinary user can be granted the capability to suspend
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the system if the user is logged in locally."
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(service polkit-service-type polkit))
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"Return a service that runs the
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@uref{http://www.freedesktop.org/wiki/Software/polkit/, Polkit privilege
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management service}, which allows system administrators to grant access to
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privileged operations in a structured way. By querying the Polkit service, a
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privileged system component can know when it should grant additional
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capabilities to ordinary users. For example, an ordinary user can be granted
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the capability to suspend the system if the user is logged in locally."
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(service polkit-service-type
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(polkit-configuration (polkit polkit))))
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;;;
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;;; Colord D-Bus service.
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;;;
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(define %colord-activation
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#~(begin
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(use-modules (guix build utils))
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(mkdir-p "/var/lib/colord")
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(let ((user (getpwnam "colord")))
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(chown "/var/lib/colord"
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(passwd:uid user) (passwd:gid user)))))
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(define %colord-accounts
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(list (user-group (name "colord") (system? #t))
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(user-account
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(name "colord")
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(group "colord")
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(system? #t)
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(comment "colord daemon user")
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(home-directory "/var/empty")
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(shell #~(string-append #$shadow "/sbin/nologin")))))
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(define colord-service-type
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(service-type (name 'colord)
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(extensions
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(list (service-extension account-service-type
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(const %colord-accounts))
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(service-extension activation-service-type
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(const %colord-activation))
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;; Colord is a D-Bus service that dbus-daemon can
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;; activate.
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(service-extension dbus-root-service-type list)
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;; Colord provides "color device" rules for udev.
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(service-extension udev-service-type list)
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;; It provides polkit "actions".
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(service-extension polkit-service-type list)))))
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(define* (colord-service #:key (colord colord))
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"Return a service that runs @command{colord}, a system service with a D-Bus
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interface to manage the color profiles of input and output devices such as
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screens and scanners. It is notably used by the GNOME Color Manager graphical
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tool. See @uref{http://www.freedesktop.org/software/colord/, the colord web
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site} for more information."
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(service colord-service-type colord))
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;;;
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@ -581,7 +633,9 @@ (define elogind-service-type
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(compose list elogind-package))
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(service-extension udev-service-type
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(compose list elogind-package))
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;; TODO: Extend polkit(?) and PAM.
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(service-extension polkit-service-type
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(compose list elogind-package))
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;; TODO: Extend PAM with pam_elogind.so.
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))))
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(define* (elogind-service #:key (config (elogind-configuration)))
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