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[bug#44700] [PATCH v3 2/2] services: Migrate to <setuid-program>.
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From: |
Chris Lemmer-Webber |
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Subject: |
[bug#44700] [PATCH v3 2/2] services: Migrate to <setuid-program>. |
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Date: |
Wed, 07 Jul 2021 13:41:00 -0400 |
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User-agent: |
mu4e 1.4.15; emacs 27.2 |
Looks good to me. I'd say push it... let's not let this bitrot again!
Brice Waegeneire writes:
> * gnu/services/dbus.scm (dbus-setuid-programs, polkit-setuid-programs):
> Return setuid-programs.
> * gnu/services/desktop.scm (enlightenment-setuid-programs): Return
> setuid-programs.
> (%desktop-services)[mount-setuid-helpers]: Use setuid-programs.
> * gnu/services/docker.scm (singularity-setuid-programs): Return
> setuid-programs.
> * gnu/services/xorg.scm(screen-locker-setuid-programs): Return
> setuid-programs.
> * gnu/system.scm (%setuid-programs): Return setuid-programs.
> * doc/guix.texi (Setuid Programs, operating-system Reference): Replace
> 'list of G-expressions' with 'list of <setuid-program>'.
> ---
> doc/guix.texi | 19 +++++++++++--------
> gnu/services/dbus.scm | 13 +++++++++----
> gnu/services/desktop.scm | 26 ++++++++++++++++----------
> gnu/services/docker.scm | 9 ++++++---
> gnu/services/xorg.scm | 4 +++-
> gnu/system.scm | 31 ++++++++++++++++---------------
> 6 files changed, 61 insertions(+), 41 deletions(-)
>
> diff --git a/doc/guix.texi b/doc/guix.texi
> index f7a72b9885..7919332521 100644
> --- a/doc/guix.texi
> +++ b/doc/guix.texi
> @@ -13860,8 +13860,8 @@ Linux @dfn{pluggable authentication module} (PAM)
> services.
> @c FIXME: Add xref to PAM services section.
>
> @item @code{setuid-programs} (default: @code{%setuid-programs})
> -List of string-valued G-expressions denoting setuid programs.
> -@xref{Setuid Programs}.
> +List of @code{<setuid-program>}. @xref{Setuid Programs}, for more
> +information.
>
> @item @code{sudoers-file} (default: @code{%sudoers-specification})
> @cindex sudoers file
> @@ -32421,13 +32421,15 @@ the store, we let the system administrator
> @emph{declare} which programs
> should be setuid root.
>
> The @code{setuid-programs} field of an @code{operating-system}
> -declaration contains a list of G-expressions denoting the names of
> -programs to be setuid-root (@pxref{Using the Configuration System}).
> -For instance, the @command{passwd} program, which is part of the Shadow
> -package, can be designated by this G-expression (@pxref{G-Expressions}):
> +declaration contains a list of @code{<setuid-program>} denoting the
> +names of programs to have a setuid or setgid bit set (@pxref{Using the
> +Configuration System}). For instance, the @command{passwd} program,
> +which is part of the Shadow package, with a setuid root can be
> +designated like this:
>
> @example
> -#~(string-append #$shadow "/bin/passwd")
> +(setuid-program
> + (program (file-append #$shadow "/bin/passwd")))
> @end example
>
> @deftp {Data Type} setuid-program
> @@ -32458,7 +32460,8 @@ A default set of setuid programs is defined by the
> @code{%setuid-programs} variable of the @code{(gnu system)} module.
>
> @defvr {Scheme Variable} %setuid-programs
> -A list of G-expressions denoting common programs that are setuid-root.
> +A list of @code{<setuid-program>} denoting common programs that are
> +setuid-root.
>
> The list includes commands such as @command{passwd}, @command{ping},
> @command{su}, and @command{sudo}.
> diff --git a/gnu/services/dbus.scm b/gnu/services/dbus.scm
> index af1a1e4c3a..e7b3dac166 100644
> --- a/gnu/services/dbus.scm
> +++ b/gnu/services/dbus.scm
> @@ -2,6 +2,7 @@
> ;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2019, 2020 Ludovic Courtès
> <ludo@gnu.org>
> ;;; Copyright © 2015 Sou Bunnbu <iyzsong@gmail.com>
> ;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
> +;;; Copyright © 2021 Brice Waegeneire <brice@waegenei.re>
> ;;;
> ;;; This file is part of GNU Guix.
> ;;;
> @@ -21,6 +22,7 @@
> (define-module (gnu services dbus)
> #:use-module (gnu services)
> #:use-module (gnu services shepherd)
> + #:use-module (gnu system setuid)
> #:use-module (gnu system shadow)
> #:use-module (gnu system pam)
> #:use-module ((gnu packages glib) #:select (dbus))
> @@ -156,10 +158,12 @@ includes the @code{etc/dbus-1/system.d} directories of
> each package listed in
> (shell (file-append shadow "/sbin/nologin")))))
>
> (define dbus-setuid-programs
> - ;; Return the file name of the setuid program that we need.
> + ;; Return a list of <setuid-program> for the program that we need.
> (match-lambda
> (($ <dbus-configuration> dbus services)
> - (list (file-append dbus "/libexec/dbus-daemon-launch-helper")))))
> + (list (setuid-program
> + (program (file-append
> + dbus "/libexec/dbus-daemon-launch-helper")))))))
>
> (define (dbus-activation config)
> "Return an activation gexp for D-Bus using @var{config}."
> @@ -335,8 +339,9 @@ tuples, are all set as environment variables when the bus
> daemon launches it."
> (define polkit-setuid-programs
> (match-lambda
> (($ <polkit-configuration> polkit)
> - (list (file-append polkit "/lib/polkit-1/polkit-agent-helper-1")
> - (file-append polkit "/bin/pkexec")))))
> + (map file-like->setuid-program
> + (list (file-append polkit "/lib/polkit-1/polkit-agent-helper-1")
> + (file-append polkit "/bin/pkexec"))))))
>
> (define polkit-service-type
> (service-type (name 'polkit)
> diff --git a/gnu/services/desktop.scm b/gnu/services/desktop.scm
> index cd800fcc2b..64d0e85301 100644
> --- a/gnu/services/desktop.scm
> +++ b/gnu/services/desktop.scm
> @@ -12,6 +12,7 @@
> ;;; Copyright © 2019 David Wilson <david@daviwil.com>
> ;;; Copyright © 2020 Tobias Geerinckx-Rice <me@tobias.gr>
> ;;; Copyright © 2020 Reza Alizadeh Majd <r.majd@pantherx.org>
> +;;; Copyright © 2021 Brice Waegeneire <brice@waegenei.re>
> ;;;
> ;;; This file is part of GNU Guix.
> ;;;
> @@ -40,6 +41,7 @@
> #:use-module ((gnu system file-systems)
> #:select (%elogind-file-systems file-system))
> #:use-module (gnu system)
> + #:use-module (gnu system setuid)
> #:use-module (gnu system shadow)
> #:use-module (gnu system pam)
> #:use-module (gnu packages glib)
> @@ -1034,14 +1036,15 @@ rules."
>
> (define (enlightenment-setuid-programs enlightenment-desktop-configuration)
> (match-record enlightenment-desktop-configuration
> - <enlightenment-desktop-configuration>
> - (enlightenment)
> - (list (file-append enlightenment
> - "/lib/enlightenment/utils/enlightenment_sys")
> - (file-append enlightenment
> - "/lib/enlightenment/utils/enlightenment_system")
> - (file-append enlightenment
> - "/lib/enlightenment/utils/enlightenment_ckpasswd"))))
> + <enlightenment-desktop-configuration>
> + (enlightenment)
> + (map file-like->setuid-program
> + (list (file-append enlightenment
> + "/lib/enlightenment/utils/enlightenment_sys")
> + (file-append enlightenment
> + "/lib/enlightenment/utils/enlightenment_system")
> + (file-append enlightenment
> +
> "/lib/enlightenment/utils/enlightenment_ckpasswd")))))
>
> (define enlightenment-desktop-service-type
> (service-type
> @@ -1204,8 +1207,11 @@ or setting its password with passwd.")))
> ;; Allow desktop users to also mount NTFS and NFS file systems
> ;; without root.
> (simple-service 'mount-setuid-helpers setuid-program-service-type
> - (list (file-append nfs-utils "/sbin/mount.nfs")
> - (file-append ntfs-3g "/sbin/mount.ntfs-3g")))
> + (map (lambda (program)
> + (setuid-program
> + (program program)))
> + (list (file-append nfs-utils "/sbin/mount.nfs")
> + (file-append ntfs-3g "/sbin/mount.ntfs-3g"))))
>
> ;; The global fontconfig cache directory can sometimes contain
> ;; stale entries, possibly referencing fonts that have been GC'd,
> diff --git a/gnu/services/docker.scm b/gnu/services/docker.scm
> index be85316180..ef551480aa 100644
> --- a/gnu/services/docker.scm
> +++ b/gnu/services/docker.scm
> @@ -4,6 +4,7 @@
> ;;; Copyright © 2020, 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
> ;;; Copyright © 2020 Efraim Flashner <efraim@flashner.co.il>
> ;;; Copyright © 2020 Jesse Dowell <jessedowell@gmail.com>
> +;;; Copyright © 2021 Brice Waegeneire <brice@waegenei.re>
> ;;;
> ;;; This file is part of GNU Guix.
> ;;;
> @@ -26,6 +27,7 @@
> #:use-module (gnu services base)
> #:use-module (gnu services dbus)
> #:use-module (gnu services shepherd)
> + #:use-module (gnu system setuid)
> #:use-module (gnu system shadow)
> #:use-module (gnu packages docker)
> #:use-module (gnu packages linux) ;singularity
> @@ -195,9 +197,10 @@ bundles in Docker containers.")
> "-helper")))
> '("action" "mount" "start")))))
>
> - (list (file-append helpers "/singularity-action-helper")
> - (file-append helpers "/singularity-mount-helper")
> - (file-append helpers "/singularity-start-helper")))
> + (map file-like->setuid-program
> + (list (file-append helpers "/singularity-action-helper")
> + (file-append helpers "/singularity-mount-helper")
> + (file-append helpers "/singularity-start-helper"))))
>
> (define singularity-service-type
> (service-type (name 'singularity)
> diff --git a/gnu/services/xorg.scm b/gnu/services/xorg.scm
> index 8ffea3b9dd..d95f8beb7a 100644
> --- a/gnu/services/xorg.scm
> +++ b/gnu/services/xorg.scm
> @@ -8,6 +8,7 @@
> ;;; Copyright © 2020 shtwzrd <shtwzrd@protonmail.com>
> ;;; Copyright © 2020 Jakub Kądziołka <kuba@kadziolka.net>
> ;;; Copyright © 2020 Alex Griffin <a@ajgrf.com>
> +;;; Copyright © 2021 Brice Waegeneire <brice@waegenei.re>
> ;;;
> ;;; This file is part of GNU Guix.
> ;;;
> @@ -29,6 +30,7 @@
> #:use-module (gnu services)
> #:use-module (gnu services shepherd)
> #:use-module (gnu system pam)
> + #:use-module (gnu system setuid)
> #:use-module (gnu system keyboard)
> #:use-module (gnu services base)
> #:use-module (gnu services dbus)
> @@ -681,7 +683,7 @@ reboot_cmd " shepherd "/sbin/reboot\n"
> #:allow-empty-passwords? empty?)))))
>
> (define screen-locker-setuid-programs
> - (compose list screen-locker-program))
> + (compose list file-like->setuid-program screen-locker-program))
>
> (define screen-locker-service-type
> (service-type (name 'screen-locker)
> diff --git a/gnu/system.scm b/gnu/system.scm
> index 385c36a484..681dd33630 100644
> --- a/gnu/system.scm
> +++ b/gnu/system.scm
> @@ -1105,22 +1105,23 @@ use 'plain-file' instead~%")
> (define %setuid-programs
> ;; Default set of setuid-root programs.
> (let ((shadow (@ (gnu packages admin) shadow)))
> - (list (file-append shadow "/bin/passwd")
> - (file-append shadow "/bin/sg")
> - (file-append shadow "/bin/su")
> - (file-append shadow "/bin/newgrp")
> - (file-append shadow "/bin/newuidmap")
> - (file-append shadow "/bin/newgidmap")
> - (file-append inetutils "/bin/ping")
> - (file-append inetutils "/bin/ping6")
> - (file-append sudo "/bin/sudo")
> - (file-append sudo "/bin/sudoedit")
> - (file-append fuse "/bin/fusermount")
> + (map file-like->setuid-program
> + (list (file-append shadow "/bin/passwd")
> + (file-append shadow "/bin/sg")
> + (file-append shadow "/bin/su")
> + (file-append shadow "/bin/newgrp")
> + (file-append shadow "/bin/newuidmap")
> + (file-append shadow "/bin/newgidmap")
> + (file-append inetutils "/bin/ping")
> + (file-append inetutils "/bin/ping6")
> + (file-append sudo "/bin/sudo")
> + (file-append sudo "/bin/sudoedit")
> + (file-append fuse "/bin/fusermount")
>
> - ;; To allow mounts with the "user" option, "mount" and "umount"
> must
> - ;; be setuid-root.
> - (file-append util-linux "/bin/mount")
> - (file-append util-linux "/bin/umount"))))
> + ;; To allow mounts with the "user" option, "mount" and
> "umount" must
> + ;; be setuid-root.
> + (file-append util-linux "/bin/mount")
> + (file-append util-linux "/bin/umount")))))
>
> (define %sudoers-specification
> ;; Default /etc/sudoers contents: 'root' and all members of the 'wheel'