935 lines
37 KiB
Scheme
935 lines
37 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
|
||
;;; Copyright © 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
|
||
;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
|
||
;;; Copyright © 2015 Alex Kost <alezost@gmail.com>
|
||
;;;
|
||
;;; This file is part of GNU Guix.
|
||
;;;
|
||
;;; GNU Guix is free software; you can redistribute it and/or modify it
|
||
;;; under the terms of the GNU General Public License as published by
|
||
;;; the Free Software Foundation; either version 3 of the License, or (at
|
||
;;; your option) any later version.
|
||
;;;
|
||
;;; GNU Guix is distributed in the hope that it will be useful, but
|
||
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
;;; GNU General Public License for more details.
|
||
;;;
|
||
;;; You should have received a copy of the GNU General Public License
|
||
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
|
||
|
||
(define-module (gnu system)
|
||
#:use-module (guix store)
|
||
#:use-module (guix monads)
|
||
#:use-module (guix gexp)
|
||
#:use-module (guix records)
|
||
#:use-module (guix packages)
|
||
#:use-module (guix derivations)
|
||
#:use-module (guix profiles)
|
||
#:use-module (guix ui)
|
||
#:use-module (gnu packages base)
|
||
#:use-module (gnu packages bash)
|
||
#:use-module (gnu packages guile)
|
||
#:use-module (gnu packages admin)
|
||
#:use-module (gnu packages linux)
|
||
#:use-module (gnu packages pciutils)
|
||
#:use-module (gnu packages package-management)
|
||
#:use-module (gnu packages less)
|
||
#:use-module (gnu packages zile)
|
||
#:use-module (gnu packages nano)
|
||
#:use-module (gnu packages lsof)
|
||
#:use-module (gnu packages gawk)
|
||
#:use-module (gnu packages man)
|
||
#:use-module (gnu packages compression)
|
||
#:use-module (gnu packages firmware)
|
||
#:autoload (gnu packages cryptsetup) (cryptsetup)
|
||
#:use-module (gnu services)
|
||
#:use-module (gnu services dmd)
|
||
#:use-module (gnu services base)
|
||
#:use-module (gnu system grub)
|
||
#:use-module (gnu system shadow)
|
||
#:use-module (gnu system nss)
|
||
#:use-module (gnu system locale)
|
||
#:use-module (gnu system linux)
|
||
#:use-module (gnu system linux-initrd)
|
||
#:use-module (gnu system file-systems)
|
||
#:use-module (ice-9 match)
|
||
#:use-module (srfi srfi-1)
|
||
#:use-module (srfi srfi-26)
|
||
#:use-module (srfi srfi-34)
|
||
#:use-module (srfi srfi-35)
|
||
#:export (operating-system
|
||
operating-system?
|
||
|
||
operating-system-bootloader
|
||
operating-system-services
|
||
operating-system-user-services
|
||
operating-system-packages
|
||
operating-system-host-name
|
||
operating-system-hosts-file
|
||
operating-system-kernel
|
||
operating-system-kernel-arguments
|
||
operating-system-initrd
|
||
operating-system-users
|
||
operating-system-groups
|
||
operating-system-issue
|
||
operating-system-timezone
|
||
operating-system-locale
|
||
operating-system-locale-definitions
|
||
operating-system-mapped-devices
|
||
operating-system-file-systems
|
||
operating-system-activation-script
|
||
|
||
operating-system-derivation
|
||
operating-system-profile
|
||
operating-system-grub.cfg
|
||
operating-system-etc-directory
|
||
operating-system-locale-directory
|
||
operating-system-boot-script
|
||
|
||
file-union
|
||
|
||
local-host-aliases
|
||
%setuid-programs
|
||
%base-packages
|
||
%base-firmware
|
||
|
||
luks-device-mapping))
|
||
|
||
;;; Commentary:
|
||
;;;
|
||
;;; This module supports whole-system configuration.
|
||
;;;
|
||
;;; Code:
|
||
|
||
;; System-wide configuration.
|
||
;; TODO: Add per-field docstrings/stexi.
|
||
(define-record-type* <operating-system> operating-system
|
||
make-operating-system
|
||
operating-system?
|
||
(kernel operating-system-kernel ; package
|
||
(default linux-libre))
|
||
(kernel-arguments operating-system-kernel-arguments
|
||
(default '())) ; list of gexps/strings
|
||
(bootloader operating-system-bootloader) ; <grub-configuration>
|
||
|
||
(initrd operating-system-initrd ; (list fs) -> M derivation
|
||
(default base-initrd))
|
||
(firmware operating-system-firmware ; list of packages
|
||
(default %base-firmware))
|
||
|
||
(host-name operating-system-host-name) ; string
|
||
(hosts-file operating-system-hosts-file ; file-like | #f
|
||
(default #f))
|
||
|
||
(mapped-devices operating-system-mapped-devices ; list of <mapped-device>
|
||
(default '()))
|
||
(file-systems operating-system-file-systems) ; list of fs
|
||
(swap-devices operating-system-swap-devices ; list of strings
|
||
(default '()))
|
||
|
||
(users operating-system-users ; list of user accounts
|
||
(default %base-user-accounts))
|
||
(groups operating-system-groups ; list of user groups
|
||
(default %base-groups))
|
||
|
||
(skeletons operating-system-skeletons ; list of name/monadic value
|
||
(default (default-skeletons)))
|
||
(issue operating-system-issue ; string
|
||
(default %default-issue))
|
||
|
||
(packages operating-system-packages ; list of (PACKAGE OUTPUT...)
|
||
(default %base-packages)) ; or just PACKAGE
|
||
|
||
(timezone operating-system-timezone) ; string
|
||
(locale operating-system-locale ; string
|
||
(default "en_US.utf8"))
|
||
(locale-definitions operating-system-locale-definitions ; list of <locale-definition>
|
||
(default %default-locale-definitions))
|
||
(name-service-switch operating-system-name-service-switch ; <name-service-switch>
|
||
(default %default-nss))
|
||
|
||
(services operating-system-user-services ; list of monadic services
|
||
(default %base-services))
|
||
|
||
(pam-services operating-system-pam-services ; list of PAM services
|
||
(default (base-pam-services)))
|
||
(setuid-programs operating-system-setuid-programs
|
||
(default %setuid-programs)) ; list of string-valued gexps
|
||
|
||
(sudoers-file operating-system-sudoers-file ; file-like
|
||
(default %sudoers-specification)))
|
||
|
||
|
||
;;;
|
||
;;; Derivation.
|
||
;;;
|
||
|
||
(define* (file-union name files)
|
||
"Return a derivation that builds a directory containing all of FILES. Each
|
||
item in FILES must be a list where the first element is the file name to use
|
||
in the new directory, and the second element is a gexp denoting the target
|
||
file."
|
||
(define builder
|
||
#~(begin
|
||
(mkdir #$output)
|
||
(chdir #$output)
|
||
#$@(map (match-lambda
|
||
((target source)
|
||
#~(symlink #$source #$target)))
|
||
files)))
|
||
|
||
(gexp->derivation name builder))
|
||
|
||
(define (directory-union name things)
|
||
"Return a directory that is the union of THINGS."
|
||
(match things
|
||
((one)
|
||
;; Only one thing; return it.
|
||
(with-monad %store-monad (return one)))
|
||
(_
|
||
(gexp->derivation name
|
||
#~(begin
|
||
(use-modules (guix build union))
|
||
(union-build #$output '#$things))
|
||
#:modules '((guix build union))
|
||
#:local-build? #t))))
|
||
|
||
|
||
;;;
|
||
;;; Services.
|
||
;;;
|
||
|
||
(define (open-luks-device source target)
|
||
"Return a gexp that maps SOURCE to TARGET as a LUKS device, using
|
||
'cryptsetup'."
|
||
#~(zero? (system* (string-append #$cryptsetup "/sbin/cryptsetup")
|
||
"open" "--type" "luks"
|
||
#$source #$target)))
|
||
|
||
(define (close-luks-device source target)
|
||
"Return a gexp that closes TARGET, a LUKS device."
|
||
#~(zero? (system* (string-append #$cryptsetup "/sbin/cryptsetup")
|
||
"close" #$target)))
|
||
|
||
(define luks-device-mapping
|
||
;; The type of LUKS mapped devices.
|
||
(mapped-device-kind
|
||
(open open-luks-device)
|
||
(close close-luks-device)))
|
||
|
||
(define (other-file-system-services os)
|
||
"Return file system services for the file systems of OS that are not marked
|
||
as 'needed-for-boot'."
|
||
(define file-systems
|
||
(remove file-system-needed-for-boot?
|
||
(operating-system-file-systems os)))
|
||
|
||
(define (device-mappings fs)
|
||
(filter (lambda (md)
|
||
(string=? (string-append "/dev/mapper/"
|
||
(mapped-device-target md))
|
||
(file-system-device fs)))
|
||
(operating-system-mapped-devices os)))
|
||
|
||
(define (requirements fs)
|
||
;; XXX: Fiddling with dmd service names is not nice.
|
||
(append (map (lambda (fs)
|
||
(symbol-append 'file-system-
|
||
(string->symbol
|
||
(file-system-mount-point fs))))
|
||
(file-system-dependencies fs))
|
||
(map (lambda (md)
|
||
(symbol-append 'device-mapping-
|
||
(string->symbol (mapped-device-target md))))
|
||
(device-mappings fs))))
|
||
|
||
(sequence %store-monad
|
||
(map (lambda (fs)
|
||
(match fs
|
||
(($ <file-system> device title target type flags opts
|
||
#f check? create?)
|
||
(file-system-service device target type
|
||
#:title title
|
||
#:requirements (requirements fs)
|
||
#:check? check?
|
||
#:create-mount-point? create?
|
||
#:options opts
|
||
#:flags flags))))
|
||
file-systems)))
|
||
|
||
(define (mapped-device-user device file-systems)
|
||
"Return a file system among FILE-SYSTEMS that uses DEVICE, or #f."
|
||
(let ((target (string-append "/dev/mapper/" (mapped-device-target device))))
|
||
(find (lambda (fs)
|
||
(string=? (file-system-device fs) target))
|
||
file-systems)))
|
||
|
||
(define (operating-system-user-mapped-devices os)
|
||
"Return the subset of mapped devices that can be installed in
|
||
user-land--i.e., those not needed during boot."
|
||
(let ((devices (operating-system-mapped-devices os))
|
||
(file-systems (operating-system-file-systems os)))
|
||
(filter (lambda (md)
|
||
(let ((user (mapped-device-user md file-systems)))
|
||
(or (not user)
|
||
(not (file-system-needed-for-boot? user)))))
|
||
devices)))
|
||
|
||
(define (operating-system-boot-mapped-devices os)
|
||
"Return the subset of mapped devices that must be installed during boot,
|
||
from the initrd."
|
||
(let ((devices (operating-system-mapped-devices os))
|
||
(file-systems (operating-system-file-systems os)))
|
||
(filter (lambda (md)
|
||
(let ((user (mapped-device-user md file-systems)))
|
||
(and user (file-system-needed-for-boot? user))))
|
||
devices)))
|
||
|
||
(define (device-mapping-services os)
|
||
"Return the list of device-mapping services for OS as a monadic list."
|
||
(sequence %store-monad
|
||
(map (lambda (md)
|
||
(let* ((source (mapped-device-source md))
|
||
(target (mapped-device-target md))
|
||
(type (mapped-device-type md))
|
||
(open (mapped-device-kind-open type))
|
||
(close (mapped-device-kind-close type)))
|
||
(device-mapping-service target
|
||
(open source target)
|
||
(close source target))))
|
||
(operating-system-user-mapped-devices os))))
|
||
|
||
(define (swap-services os)
|
||
"Return the list of swap services for OS as a monadic list."
|
||
(sequence %store-monad
|
||
(map swap-service (operating-system-swap-devices os))))
|
||
|
||
(define (essential-services os)
|
||
"Return the list of essential services for OS. These are special services
|
||
that implement part of what's declared in OS are responsible for low-level
|
||
bookkeeping."
|
||
(define known-fs
|
||
(map file-system-mount-point (operating-system-file-systems os)))
|
||
|
||
(mlet* %store-monad ((mappings (device-mapping-services os))
|
||
(root-fs (root-file-system-service))
|
||
(other-fs (other-file-system-services os))
|
||
(unmount (user-unmount-service known-fs))
|
||
(swaps (swap-services os))
|
||
(procs (user-processes-service
|
||
(map (compose first service-provision)
|
||
other-fs)))
|
||
(host-name (host-name-service
|
||
(operating-system-host-name os))))
|
||
(return (cons* host-name procs root-fs unmount
|
||
(append other-fs mappings swaps)))))
|
||
|
||
(define (operating-system-services os)
|
||
"Return all the services of OS, including \"internal\" services that do not
|
||
explicitly appear in OS."
|
||
(mlet %store-monad
|
||
((user (sequence %store-monad (operating-system-user-services os)))
|
||
(essential (essential-services os)))
|
||
(return (append essential user))))
|
||
|
||
|
||
;;;
|
||
;;; /etc.
|
||
;;;
|
||
|
||
(define %base-firmware
|
||
;; Firmware usable by default.
|
||
(list ath9k-htc-firmware))
|
||
|
||
(define %base-packages
|
||
;; Default set of packages globally visible. It should include anything
|
||
;; required for basic administrator tasks.
|
||
(cons* procps psmisc which less zile nano
|
||
(@ (gnu packages admin) dmd) guix
|
||
lsof ;for Guix's 'list-runtime-roots'
|
||
pciutils usbutils
|
||
util-linux inetutils isc-dhcp
|
||
|
||
;; wireless-tools is deprecated in favor of iw, but it's still what
|
||
;; many people are familiar with, so keep it around.
|
||
iw wireless-tools
|
||
|
||
net-tools ; XXX: remove when Inetutils suffices
|
||
man-db
|
||
|
||
;; The 'sudo' command is already in %SETUID-PROGRAMS, but we also
|
||
;; want the other commands and the man pages (notably because
|
||
;; auto-completion in Emacs shell relies on man pages.)
|
||
sudo
|
||
|
||
;; Get 'insmod' & co. from kmod, not module-init-tools, since udev
|
||
;; already depends on it anyway.
|
||
kmod eudev
|
||
|
||
e2fsprogs kbd
|
||
|
||
bash-completion
|
||
|
||
;; The packages below are also in %FINAL-INPUTS, so take them from
|
||
;; there to avoid duplication.
|
||
(map canonical-package
|
||
(list guile-2.0 bash coreutils findutils grep sed
|
||
diffutils patch gawk tar gzip bzip2 xz lzip))))
|
||
|
||
(define %default-issue
|
||
;; Default contents for /etc/issue.
|
||
"
|
||
This is the GNU system. Welcome.\n")
|
||
|
||
(define (local-host-aliases host-name)
|
||
"Return aliases for HOST-NAME, to be used in /etc/hosts."
|
||
(string-append "127.0.0.1 localhost " host-name "\n"
|
||
"::1 localhost " host-name "\n"))
|
||
|
||
(define (default-/etc/hosts host-name)
|
||
"Return the default /etc/hosts file."
|
||
(plain-file "hosts" (local-host-aliases host-name)))
|
||
|
||
(define (emacs-site-file)
|
||
"Return the Emacs 'site-start.el' file. That file contains the necessary
|
||
settings for 'guix.el' to work out-of-the-box."
|
||
(gexp->file "site-start.el"
|
||
#~(progn
|
||
;; Add the "normal" elisp directory to the search path;
|
||
;; guix.el may be there.
|
||
(add-to-list
|
||
'load-path
|
||
"/run/current-system/profile/share/emacs/site-lisp")
|
||
|
||
;; Attempt to load guix.el.
|
||
(require 'guix-init nil t)
|
||
|
||
;; Attempt to load geiser.
|
||
(require 'geiser-install nil t))))
|
||
|
||
(define (emacs-site-directory)
|
||
"Return the Emacs site directory, aka. /etc/emacs."
|
||
(mlet %store-monad ((file (emacs-site-file)))
|
||
(gexp->derivation "emacs"
|
||
#~(begin
|
||
(mkdir #$output)
|
||
(chdir #$output)
|
||
(symlink #$file "site-start.el")))))
|
||
|
||
(define (user-shells os)
|
||
"Return the list of all the shells used by the accounts of OS. These may be
|
||
gexps or strings."
|
||
(mlet %store-monad ((accounts (operating-system-accounts os)))
|
||
(return (map user-account-shell accounts))))
|
||
|
||
(define (shells-file shells)
|
||
"Return a derivation that builds a shell list for use as /etc/shells based
|
||
on SHELLS. /etc/shells is used by xterm, polkit, and other programs."
|
||
(gexp->derivation "shells"
|
||
#~(begin
|
||
(use-modules (srfi srfi-1))
|
||
|
||
(define shells
|
||
(delete-duplicates (list #$@shells)))
|
||
|
||
(call-with-output-file #$output
|
||
(lambda (port)
|
||
(display "\
|
||
/bin/sh
|
||
/run/current-system/profile/bin/sh
|
||
/run/current-system/profile/bin/bash\n" port)
|
||
(for-each (lambda (shell)
|
||
(display shell port)
|
||
(newline port))
|
||
shells))))))
|
||
|
||
(define* (etc-directory #:key
|
||
(locale "C") (timezone "Europe/Paris")
|
||
(issue "Hello!\n")
|
||
(skeletons '())
|
||
(pam-services '())
|
||
(profile "/run/current-system/profile")
|
||
hosts-file nss (shells '())
|
||
(sudoers-file (plain-file "sudoers" "")))
|
||
"Return a derivation that builds the static part of the /etc directory."
|
||
(mlet* %store-monad
|
||
((pam.d (pam-services->directory pam-services))
|
||
(login.defs (text-file "login.defs" "# Empty for now.\n"))
|
||
(shells (shells-file shells))
|
||
(emacs (emacs-site-directory))
|
||
(issue (text-file "issue" issue))
|
||
(nsswitch (text-file "nsswitch.conf"
|
||
(name-service-switch->string nss)))
|
||
|
||
;; Startup file for POSIX-compliant login shells, which set system-wide
|
||
;; environment variables.
|
||
(profile (text-file* "profile" "\
|
||
export LANG=\"" locale "\"
|
||
export TZ=\"" timezone "\"
|
||
export TZDIR=\"" tzdata "/share/zoneinfo\"
|
||
|
||
# Tell 'modprobe' & co. where to look for modules.
|
||
export LINUX_MODULE_DIRECTORY=/run/booted-system/kernel/lib/modules
|
||
|
||
# These variables are honored by OpenSSL (libssl) and Git.
|
||
export SSL_CERT_DIR=/etc/ssl/certs
|
||
export SSL_CERT_FILE=\"$SSL_CERT_DIR/ca-certificates.crt\"
|
||
export GIT_SSL_CAINFO=\"$SSL_CERT_FILE\"
|
||
|
||
# Crucial variables that could be missing in the profiles' 'etc/profile'
|
||
# because they would require combining both profiles.
|
||
# FIXME: See <http://bugs.gnu.org/20255>.
|
||
export MANPATH=$HOME/.guix-profile/share/man:/run/current-system/profile/share/man
|
||
export INFOPATH=$HOME/.guix-profile/share/info:/run/current-system/profile/share/info
|
||
export XDG_DATA_DIRS=$HOME/.guix-profile/share:/run/current-system/profile/share
|
||
export XDG_CONFIG_DIRS=$HOME/.guix-profile/etc/xdg:/run/current-system/profile/etc/xdg
|
||
|
||
# Ignore the default value of 'PATH'.
|
||
unset PATH
|
||
|
||
# Load the system profile's settings.
|
||
GUIX_PROFILE=/run/current-system/profile \\
|
||
. /run/current-system/profile/etc/profile
|
||
|
||
# Prepend setuid programs.
|
||
export PATH=/run/setuid-programs:$PATH
|
||
|
||
if [ -f \"$HOME/.guix-profile/etc/profile\" ]
|
||
then
|
||
# Load the user profile's settings.
|
||
GUIX_PROFILE=\"$HOME/.guix-profile\" \\
|
||
. \"$HOME/.guix-profile/etc/profile\"
|
||
else
|
||
# At least define this one so that basic things just work
|
||
# when the user installs their first package.
|
||
export PATH=\"$HOME/.guix-profile/bin:$PATH\"
|
||
fi
|
||
|
||
# Append the directory of 'site-start.el' to the search path.
|
||
export EMACSLOADPATH=:/etc/emacs
|
||
|
||
# By default, applications that use D-Bus, such as Emacs, abort at startup
|
||
# when /etc/machine-id is missing. Make sure these warnings are non-fatal.
|
||
export DBUS_FATAL_WARNINGS=0
|
||
|
||
# Allow Aspell to find dictionaries installed in the user profile.
|
||
export ASPELL_CONF=\"dict-dir $HOME/.guix-profile/lib/aspell\"
|
||
|
||
if [ -n \"$BASH_VERSION\" -a -f /etc/bashrc ]
|
||
then
|
||
# Load Bash-specific initialization code.
|
||
. /etc/bashrc
|
||
fi
|
||
"))
|
||
|
||
(bashrc (text-file "bashrc" "\
|
||
# Bash-specific initialization.
|
||
|
||
# The 'bash-completion' package.
|
||
if [ -f /run/current-system/profile/etc/profile.d/bash_completion.sh ]
|
||
then
|
||
# Bash-completion sources ~/.bash_completion. It installs a dynamic
|
||
# completion loader that searches its own completion files as well
|
||
# as those in ~/.guix-profile and /run/current-system/profile.
|
||
source /run/current-system/profile/etc/profile.d/bash_completion.sh
|
||
fi\n"))
|
||
(skel (skeleton-directory skeletons)))
|
||
(file-union "etc"
|
||
`(("services" ,#~(string-append #$net-base "/etc/services"))
|
||
("protocols" ,#~(string-append #$net-base "/etc/protocols"))
|
||
("rpc" ,#~(string-append #$net-base "/etc/rpc"))
|
||
("emacs" ,#~#$emacs)
|
||
("pam.d" ,#~#$pam.d)
|
||
("login.defs" ,#~#$login.defs)
|
||
("issue" ,#~#$issue)
|
||
("nsswitch.conf" ,#~#$nsswitch)
|
||
("skel" ,#~#$skel)
|
||
("shells" ,#~#$shells)
|
||
("profile" ,#~#$profile)
|
||
("bashrc" ,#~#$bashrc)
|
||
("hosts" ,#~#$hosts-file)
|
||
("localtime" ,#~(string-append #$tzdata "/share/zoneinfo/"
|
||
#$timezone))
|
||
("sudoers" ,sudoers-file)))))
|
||
|
||
(define (operating-system-profile os)
|
||
"Return a derivation that builds the system profile of OS."
|
||
(profile-derivation (manifest (map package->manifest-entry
|
||
(operating-system-packages os)))))
|
||
|
||
(define %root-account
|
||
;; Default root account.
|
||
(user-account
|
||
(name "root")
|
||
(password "")
|
||
(uid 0) (group "root")
|
||
(comment "System administrator")
|
||
(home-directory "/root")))
|
||
|
||
(define (operating-system-accounts os)
|
||
"Return the user accounts for OS, including an obligatory 'root' account."
|
||
(define users
|
||
;; Make sure there's a root account.
|
||
(if (find (lambda (user)
|
||
(and=> (user-account-uid user) zero?))
|
||
(operating-system-users os))
|
||
(operating-system-users os)
|
||
(cons %root-account (operating-system-users os))))
|
||
|
||
(mlet %store-monad ((services (operating-system-services os)))
|
||
(return (append users
|
||
(append-map service-user-accounts services)))))
|
||
|
||
(define (maybe-string->file file-name thing)
|
||
"If THING is a string, return a <plain-file> with THING as its content.
|
||
Otherwise just return THING.
|
||
|
||
This is for backward-compatibility of fields that used to be strings and are
|
||
now file-like objects.."
|
||
(match thing
|
||
((? string?)
|
||
(warning (_ "using a string for file '~a' is deprecated; \
|
||
use 'plain-file' instead~%")
|
||
file-name)
|
||
(plain-file file-name thing))
|
||
(x
|
||
x)))
|
||
|
||
(define (maybe-file->monadic file-name thing)
|
||
"If THING is a value in %STORE-MONAD, return it as is; otherwise return
|
||
THING in the %STORE-MONAD.
|
||
|
||
This is for backward-compatibility of fields that used to be monadic values
|
||
and are now file-like objects."
|
||
(with-monad %store-monad
|
||
(match thing
|
||
((? procedure?)
|
||
(warning (_ "using a monadic value for '~a' is deprecated; \
|
||
use 'plain-file' instead~%")
|
||
file-name)
|
||
thing)
|
||
(x
|
||
(return x)))))
|
||
|
||
(define (operating-system-etc-directory os)
|
||
"Return that static part of the /etc directory of OS."
|
||
(mlet* %store-monad
|
||
((services (operating-system-services os))
|
||
(pam-services ->
|
||
;; Services known to PAM.
|
||
(append (operating-system-pam-services os)
|
||
(append-map service-pam-services services)))
|
||
(profile-drv (operating-system-profile os))
|
||
(skeletons (operating-system-skeletons os))
|
||
(/etc/hosts (maybe-file->monadic
|
||
"hosts"
|
||
(or (operating-system-hosts-file os)
|
||
(default-/etc/hosts (operating-system-host-name os)))))
|
||
(shells (user-shells os)))
|
||
(etc-directory #:pam-services pam-services
|
||
#:skeletons skeletons
|
||
#:issue (operating-system-issue os)
|
||
#:locale (operating-system-locale os)
|
||
#:nss (operating-system-name-service-switch os)
|
||
#:timezone (operating-system-timezone os)
|
||
#:hosts-file /etc/hosts
|
||
#:shells shells
|
||
#:sudoers-file (maybe-string->file
|
||
"sudoers"
|
||
(operating-system-sudoers-file os))
|
||
#:profile profile-drv)))
|
||
|
||
(define %setuid-programs
|
||
;; Default set of setuid-root programs.
|
||
(let ((shadow (@ (gnu packages admin) shadow)))
|
||
(list #~(string-append #$shadow "/bin/passwd")
|
||
#~(string-append #$shadow "/bin/su")
|
||
#~(string-append #$inetutils "/bin/ping")
|
||
#~(string-append #$inetutils "/bin/ping6")
|
||
#~(string-append #$sudo "/bin/sudo")
|
||
#~(string-append #$fuse "/bin/fusermount"))))
|
||
|
||
(define %sudoers-specification
|
||
;; Default /etc/sudoers contents: 'root' and all members of the 'wheel'
|
||
;; group can do anything. See
|
||
;; <http://www.sudo.ws/sudo/man/1.8.10/sudoers.man.html>.
|
||
;; TODO: Add a declarative API.
|
||
(plain-file "sudoers" "\
|
||
root ALL=(ALL) ALL
|
||
%wheel ALL=(ALL) ALL\n"))
|
||
|
||
(define (user-group->gexp group)
|
||
"Turn GROUP, a <user-group> object, into a list-valued gexp suitable for
|
||
'active-groups'."
|
||
#~(list #$(user-group-name group)
|
||
#$(user-group-password group)
|
||
#$(user-group-id group)
|
||
#$(user-group-system? group)))
|
||
|
||
(define (user-account->gexp account)
|
||
"Turn ACCOUNT, a <user-account> object, into a list-valued gexp suitable for
|
||
'activate-users'."
|
||
#~`(#$(user-account-name account)
|
||
#$(user-account-uid account)
|
||
#$(user-account-group account)
|
||
#$(user-account-supplementary-groups account)
|
||
#$(user-account-comment account)
|
||
#$(user-account-home-directory account)
|
||
,#$(user-account-shell account) ; this one is a gexp
|
||
#$(user-account-password account)
|
||
#$(user-account-system? account)))
|
||
|
||
(define (modprobe-wrapper)
|
||
"Return a wrapper for the 'modprobe' command that knows where modules live.
|
||
|
||
This wrapper is typically invoked by the Linux kernel ('call_modprobe', in
|
||
kernel/kmod.c), a situation where the 'LINUX_MODULE_DIRECTORY' environment
|
||
variable is not set---hence the need for this wrapper."
|
||
(let ((modprobe "/run/current-system/profile/bin/modprobe"))
|
||
(gexp->script "modprobe"
|
||
#~(begin
|
||
(setenv "LINUX_MODULE_DIRECTORY"
|
||
"/run/booted-system/kernel/lib/modules")
|
||
(apply execl #$modprobe
|
||
(cons #$modprobe (cdr (command-line))))))))
|
||
|
||
(define* (operating-system-activation-script os #:key container?)
|
||
"Return the activation script for OS---i.e., the code that \"activates\" the
|
||
stateful part of OS, including user accounts and groups, special directories,
|
||
etc."
|
||
(define %modules
|
||
'((gnu build activation)
|
||
(gnu build linux-boot)
|
||
(gnu build linux-modules)
|
||
(gnu build file-systems)
|
||
(guix build utils)
|
||
(guix build syscalls)
|
||
(guix elf)))
|
||
|
||
(define (service-activations services)
|
||
;; Return the activation scripts for SERVICES.
|
||
(let ((gexps (filter-map service-activate services)))
|
||
(sequence %store-monad (map (cut gexp->file "activate-service.scm" <>)
|
||
gexps))))
|
||
|
||
(mlet* %store-monad ((services (operating-system-services os))
|
||
(actions (service-activations services))
|
||
(etc (operating-system-etc-directory os))
|
||
(modules (imported-modules %modules))
|
||
(compiled (compiled-modules %modules))
|
||
(modprobe (modprobe-wrapper))
|
||
(firmware (directory-union
|
||
"firmware" (operating-system-firmware os)))
|
||
(accounts (operating-system-accounts os)))
|
||
(define setuid-progs
|
||
(operating-system-setuid-programs os))
|
||
|
||
(define user-specs
|
||
(map user-account->gexp accounts))
|
||
|
||
(define groups
|
||
(append (operating-system-groups os)
|
||
(append-map service-user-groups services)))
|
||
|
||
(define group-specs
|
||
(map user-group->gexp groups))
|
||
|
||
(assert-valid-users/groups accounts groups)
|
||
|
||
(gexp->file "activate"
|
||
#~(begin
|
||
(eval-when (expand load eval)
|
||
;; Make sure 'use-modules' below succeeds.
|
||
(set! %load-path (cons #$modules %load-path))
|
||
(set! %load-compiled-path
|
||
(cons #$compiled %load-compiled-path)))
|
||
|
||
(use-modules (gnu build activation))
|
||
|
||
;; Make sure /bin/sh is valid and current.
|
||
(activate-/bin/sh
|
||
(string-append #$(canonical-package bash)
|
||
"/bin/sh"))
|
||
|
||
;; Populate /etc.
|
||
(activate-etc #$etc)
|
||
|
||
;; Add users and user groups.
|
||
(setenv "PATH"
|
||
(string-append #$(@ (gnu packages admin) shadow)
|
||
"/sbin"))
|
||
(activate-users+groups (list #$@user-specs)
|
||
(list #$@group-specs))
|
||
|
||
;; Activate setuid programs.
|
||
(activate-setuid-programs (list #$@setuid-progs))
|
||
|
||
;; Tell the kernel to use our 'modprobe' command.
|
||
(activate-modprobe #$modprobe)
|
||
|
||
;; Tell the kernel where firmware is, unless we are
|
||
;; activating a container.
|
||
#$@(if container?
|
||
#~()
|
||
;; Tell the kernel where firmware is.
|
||
#~((activate-firmware
|
||
(string-append #$firmware "/lib/firmware"))
|
||
;; Let users debug their own processes!
|
||
(activate-ptrace-attach)))
|
||
|
||
;; Run the services' activation snippets.
|
||
;; TODO: Use 'load-compiled'.
|
||
(for-each primitive-load '#$actions)
|
||
|
||
;; Set up /run/current-system.
|
||
(activate-current-system)))))
|
||
|
||
(define* (operating-system-boot-script os #:key container?)
|
||
"Return the boot script for OS---i.e., the code started by the initrd once
|
||
we're running in the final root. When CONTAINER? is true, skip all
|
||
hardware-related operations as necessary when booting a Linux container."
|
||
(mlet* %store-monad ((services (operating-system-services os))
|
||
(activate (operating-system-activation-script
|
||
os #:container? container?))
|
||
(dmd-conf (dmd-configuration-file services)))
|
||
(gexp->file "boot"
|
||
#~(begin
|
||
(use-modules (guix build utils))
|
||
|
||
;; Clean out /tmp and /var/run.
|
||
;;
|
||
;; XXX This needs to happen before service activations, so
|
||
;; it has to be here, but this also implicitly assumes
|
||
;; that /tmp and /var/run are on the root partition.
|
||
(false-if-exception (delete-file-recursively "/tmp"))
|
||
(false-if-exception (delete-file-recursively "/var/run"))
|
||
(false-if-exception (mkdir "/tmp"))
|
||
(false-if-exception (chmod "/tmp" #o1777))
|
||
(false-if-exception (mkdir "/var/run"))
|
||
(false-if-exception (chmod "/var/run" #o755))
|
||
|
||
;; Activate the system.
|
||
;; TODO: Use 'load-compiled'.
|
||
(primitive-load #$activate)
|
||
|
||
;; Keep track of the booted system.
|
||
(false-if-exception (delete-file "/run/booted-system"))
|
||
(symlink (readlink "/run/current-system")
|
||
"/run/booted-system")
|
||
|
||
;; Close any remaining open file descriptors to be on the
|
||
;; safe side. This must be the very last thing we do,
|
||
;; because Guile has internal FDs such as 'sleep_pipe'
|
||
;; that need to be alive.
|
||
(let loop ((fd 3))
|
||
(when (< fd 1024)
|
||
(false-if-exception (close-fdes fd))
|
||
(loop (+ 1 fd))))
|
||
|
||
;; Start dmd.
|
||
(execl (string-append #$dmd "/bin/dmd")
|
||
"dmd" "--config" #$dmd-conf)))))
|
||
|
||
(define (operating-system-root-file-system os)
|
||
"Return the root file system of OS."
|
||
(find (match-lambda
|
||
(($ <file-system> _ _ "/") #t)
|
||
(_ #f))
|
||
(operating-system-file-systems os)))
|
||
|
||
(define (operating-system-initrd-file os)
|
||
"Return a gexp denoting the initrd file of OS."
|
||
(define boot-file-systems
|
||
(filter file-system-needed-for-boot?
|
||
(operating-system-file-systems os)))
|
||
|
||
(define mapped-devices
|
||
(operating-system-boot-mapped-devices os))
|
||
|
||
(define make-initrd
|
||
(operating-system-initrd os))
|
||
|
||
(mlet %store-monad ((initrd (make-initrd boot-file-systems
|
||
#:linux (operating-system-kernel os)
|
||
#:mapped-devices mapped-devices)))
|
||
(return #~(string-append #$initrd "/initrd"))))
|
||
|
||
(define (operating-system-locale-directory os)
|
||
"Return the directory containing the locales compiled for the definitions
|
||
listed in OS. The C library expects to find it under
|
||
/run/current-system/locale."
|
||
;; While we're at it, check whether the locale of OS is defined.
|
||
(unless (member (operating-system-locale os)
|
||
(map locale-definition-name
|
||
(operating-system-locale-definitions os)))
|
||
(raise (condition
|
||
(&message (message "system locale lacks a definition")))))
|
||
|
||
(locale-directory (operating-system-locale-definitions os)))
|
||
|
||
(define (kernel->grub-label kernel)
|
||
"Return a label for the GRUB menu entry that boots KERNEL."
|
||
(string-append "GNU with "
|
||
(string-titlecase (package-name kernel)) " "
|
||
(package-version kernel)
|
||
" (alpha)"))
|
||
|
||
(define* (operating-system-grub.cfg os #:optional (old-entries '()))
|
||
"Return the GRUB configuration file for OS. Use OLD-ENTRIES to populate the
|
||
\"old entries\" menu."
|
||
(mlet* %store-monad
|
||
((system (operating-system-derivation os))
|
||
(root-fs -> (operating-system-root-file-system os))
|
||
(kernel -> (operating-system-kernel os))
|
||
(entries -> (list (menu-entry
|
||
(label (kernel->grub-label kernel))
|
||
(linux kernel)
|
||
(linux-arguments
|
||
(cons* (string-append "--root="
|
||
(file-system-device root-fs))
|
||
#~(string-append "--system=" #$system)
|
||
#~(string-append "--load=" #$system
|
||
"/boot")
|
||
(operating-system-kernel-arguments os)))
|
||
(initrd #~(string-append #$system "/initrd"))))))
|
||
(grub-configuration-file (operating-system-bootloader os) entries
|
||
#:old-entries old-entries)))
|
||
|
||
(define (operating-system-parameters-file os)
|
||
"Return a file that describes the boot parameters of OS. The primary use of
|
||
this file is the reconstruction of GRUB menu entries for old configurations."
|
||
(mlet %store-monad ((initrd (operating-system-initrd-file os))
|
||
(root -> (operating-system-root-file-system os))
|
||
(label -> (kernel->grub-label
|
||
(operating-system-kernel os))))
|
||
(gexp->file "parameters"
|
||
#~(boot-parameters (version 0)
|
||
(label #$label)
|
||
(root-device #$(file-system-device root))
|
||
(kernel #$(operating-system-kernel os))
|
||
(kernel-arguments
|
||
#$(operating-system-kernel-arguments os))
|
||
(initrd #$initrd)))))
|
||
|
||
(define (operating-system-derivation os)
|
||
"Return a derivation that builds OS."
|
||
(mlet* %store-monad
|
||
((profile (operating-system-profile os))
|
||
(etc (operating-system-etc-directory os))
|
||
(boot (operating-system-boot-script os))
|
||
(kernel -> (operating-system-kernel os))
|
||
(initrd (operating-system-initrd-file os))
|
||
(locale (operating-system-locale-directory os))
|
||
(params (operating-system-parameters-file os)))
|
||
(file-union "system"
|
||
`(("boot" ,#~#$boot)
|
||
("kernel" ,#~#$kernel)
|
||
("parameters" ,#~#$params)
|
||
("initrd" ,initrd)
|
||
("profile" ,#~#$profile)
|
||
("locale" ,#~#$locale) ;used by libc
|
||
("etc" ,#~#$etc)))))
|
||
|
||
;;; system.scm ends here
|