#:use-module (gnu packages base)
#:use-module (gnu packages bash)
#:use-module (gnu packages admin)
+ #:use-module (gnu packages linux)
#:use-module (gnu packages package-management)
+ #:use-module (gnu packages which)
+ #:use-module (gnu packages less)
+ #:use-module (gnu packages zile)
#:use-module (gnu services)
#:use-module (gnu services dmd)
#:use-module (gnu services base)
#:use-module (gnu system shadow)
#: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)
#:export (operating-system
operating-system?
+
+ operating-system-bootloader
operating-system-services
+ operating-system-user-services
operating-system-packages
- operating-system-bootloader-entries
operating-system-host-name
operating-system-kernel
operating-system-initrd
operating-system-users
operating-system-groups
+ operating-system-issue
operating-system-packages
operating-system-timezone
operating-system-locale
- operating-system-services
+ operating-system-file-systems
+ operating-system-activation-script
operating-system-derivation
- operating-system-profile))
+ operating-system-profile
+ operating-system-grub.cfg
+
+ %base-packages))
;;; Commentary:
;;;
operating-system?
(kernel operating-system-kernel ; package
(default linux-libre))
- (bootloader operating-system-bootloader ; package
- (default grub))
- (bootloader-entries operating-system-bootloader-entries ; list
- (default '()))
- (initrd operating-system-initrd ; monadic derivation
- (default (gnu-system-initrd)))
+ (bootloader operating-system-bootloader) ; <grub-configuration>
+
+ (initrd operating-system-initrd ; (list fs) -> M derivation
+ (default qemu-initrd))
(host-name operating-system-host-name) ; string
- (file-systems operating-system-file-systems ; list of fs
- (default '()))
+ (file-systems operating-system-file-systems) ; list of fs
(users operating-system-users ; list of user accounts
(default '()))
(groups operating-system-groups ; list of user groups
- (default (list (user-group
- (name "root")
- (id 0))
- (user-group
- (name "users")
- (id 100)
- (members '("guest"))))))
+ (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 (list coreutils ; or just PACKAGE
- grep
- sed
- findutils
- guile
- bash
- (@ (gnu packages dmd) dmd)
- guix
- tzdata)))
+ (default %base-packages)) ; or just PACKAGE
(timezone operating-system-timezone) ; string
- (locale operating-system-locale) ; string
+ (locale operating-system-locale ; string
+ (default "en_US.UTF-8"))
+
+ (services operating-system-user-services ; list of monadic services
+ (default %base-services))
- (services operating-system-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 operating-system-sudoers ; /etc/sudoers contents
+ (default %sudoers-specification)))
\f
;;;
(gexp->derivation name builder))
+\f
+;;;
+;;; Services.
+;;;
+
+(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 (lambda (fs)
+ (or (file-system-needed-for-boot? fs)
+ (string=? "/" (file-system-mount-point fs))))
+ (operating-system-file-systems os)))
+
+ (sequence %store-monad
+ (map (match-lambda
+ (($ <file-system> device title target type flags opts
+ #f check?)
+ (file-system-service device target type
+ #:title title
+ #:check? check?
+ #:options opts)))
+ file-systems)))
+
+(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."
+ (mlet* %store-monad ((root-fs (root-file-system-service))
+ (other-fs (other-file-system-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 other-fs))))
+
+(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))))
+
+\f
+;;;
+;;; /etc.
+;;;
+
+(define %base-packages
+ ;; Default set of packages globally visible. It should include anything
+ ;; required for basic administrator tasks.
+ (cons* procps psmisc less zile
+ guile-final (@ (gnu packages admin) dmd) guix
+ util-linux inetutils isc-dhcp
+ net-tools ; XXX: remove when Inetutils suffices
+ module-init-tools udev kbd
+
+ ;; The packages below are also in %FINAL-INPUTS, so take them from
+ ;; there to avoid duplication.
+ (map canonical-package
+ (list bash coreutils findutils grep sed))))
+
+(define %default-issue
+ ;; Default contents for /etc/issue.
+ "
+This is the GNU system. Welcome.\n")
+
(define* (etc-directory #:key
+ kernel
(locale "C") (timezone "Europe/Paris")
- (accounts '())
- (groups '())
+ (issue "Hello!\n")
+ (skeletons '())
(pam-services '())
- (profile "/var/run/current-system/profile"))
+ (profile "/run/current-system/profile")
+ (sudoers ""))
"Return a derivation that builds the static part of the /etc directory."
(mlet* %store-monad
- ((passwd (passwd-file accounts))
- (shadow (passwd-file accounts #:shadow? #t))
- (group (group-file groups))
- (pam.d (pam-services->directory pam-services))
+ ((pam.d (pam-services->directory pam-services))
+ (sudoers (text-file "sudoers" sudoers))
(login.defs (text-file "login.defs" "# Empty for now.\n"))
(shells (text-file "shells" ; used by xterm and others
"\
/bin/sh
-/run/current-system/bin/sh
-/run/current-system/bin/bash\n"))
- (issue (text-file "issue" "
-This is an alpha preview of the GNU system. Welcome.
-
-This image features the GNU Guix package manager, which was used to
-build it (http://www.gnu.org/software/guix/). The init system is
-GNU dmd (http://www.gnu.org/software/dmd/).
-
-You can log in as 'guest' or 'root' with no password.
-"))
+/run/current-system/profile/bin/sh
+/run/current-system/profile/bin/bash\n"))
+ (issue (text-file "issue" issue))
;; TODO: Generate bashrc from packages' search-paths.
(bashrc (text-file* "bashrc" "
export TZ=\"" timezone "\"
export TZDIR=\"" tzdata "/share/zoneinfo\"
-export PATH=$HOME/.guix-profile/bin:" profile "/bin:" profile "/sbin
+# Tell 'modprobe' & co. where to look for modules.
+# XXX: The downside of doing it here is that when switching to a new config
+# without rebooting, this variable possibly becomes invalid.
+export LINUX_MODULE_DIRECTORY=" kernel "/lib/modules
+
+export PATH=$HOME/.guix-profile/bin:/run/current-system/profile/bin
+export PATH=/run/setuid-programs:/run/current-system/profile/sbin:$PATH
export CPATH=$HOME/.guix-profile/include:" profile "/include
export LIBRARY_PATH=$HOME/.guix-profile/lib:" profile "/lib
alias ls='ls -p --color'
alias ll='ls -l'
-")))
+"))
+ (skel (skeleton-directory skeletons)))
(file-union "etc"
`(("services" ,#~(string-append #$net-base "/etc/services"))
("protocols" ,#~(string-append #$net-base "/etc/protocols"))
("pam.d" ,#~#$pam.d)
("login.defs" ,#~#$login.defs)
("issue" ,#~#$issue)
+ ("skel" ,#~#$skel)
("shells" ,#~#$shells)
("profile" ,#~#$bashrc)
("localtime" ,#~(string-append #$tzdata "/share/zoneinfo/"
#$timezone))
- ("passwd" ,#~#$passwd)
- ("shadow" ,#~#$shadow)
- ("group" ,#~#$group)))))
+ ("sudoers" ,#~#$sudoers)))))
(define (operating-system-profile os)
"Return a derivation that builds the default profile of OS."
(union (operating-system-packages os)
#:name "default-profile"))
+(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."
- (mlet %store-monad ((services (sequence %store-monad
- (operating-system-services os))))
- (return (cons (user-account
- (name "root")
- (password "")
- (uid 0) (gid 0)
- (comment "System administrator")
- (home-directory "/root"))
- (append (operating-system-users os)
- (append-map service-user-accounts
- services))))))
+ (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 (operating-system-etc-directory os)
"Return that static part of the /etc directory of OS."
(mlet* %store-monad
- ((services (sequence %store-monad (operating-system-services os)))
+ ((services (operating-system-services os))
(pam-services ->
;; Services known to PAM.
(delete-duplicates
- (cons %pam-other-services
- (append-map service-pam-services services))))
- (accounts (operating-system-accounts os))
+ (append (operating-system-pam-services os)
+ (append-map service-pam-services services))))
(profile-drv (operating-system-profile os))
- (groups -> (append (operating-system-groups os)
- (append-map service-user-groups services))))
- (etc-directory #:accounts accounts #:groups groups
+ (skeletons (operating-system-skeletons os)))
+ (etc-directory #:kernel (operating-system-kernel os)
#:pam-services pam-services
+ #:skeletons skeletons
+ #:issue (operating-system-issue os)
#:locale (operating-system-locale os)
#:timezone (operating-system-timezone os)
+ #:sudoers (operating-system-sudoers 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 #$sudo "/bin/sudo")
+ #~(string-append #$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.
+ "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)
+ #$(user-group-id group)))
+
+(define (user-account->gexp account)
+ "Turn ACCOUNT, a <user-account> object, into a list-valued gexp suitable for
+'activate-users'."
+ #~`(#$(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
+ #$(user-account-password account)))
+
+(define (operating-system-activation-script os)
+ "Return the activation script for OS---i.e., the code that \"activates\" the
+stateful part of OS, including user accounts and groups, special directories,
+etc."
+ (define %modules
+ '((guix build activation)
+ (guix build utils)
+ (guix build linux-initrd)))
+
+ (define (service-activations services)
+ ;; Return the activation scripts for SERVICES.
+ (let ((gexps (filter-map service-activate services)))
+ (sequence %store-monad (map (cut gexp->file "activate-service.scm" <>)
+ gexps))))
+
+ (mlet* %store-monad ((services (operating-system-services os))
+ (actions (service-activations services))
+ (etc (operating-system-etc-directory os))
+ (modules (imported-modules %modules))
+ (compiled (compiled-modules %modules))
+ (accounts (operating-system-accounts os)))
+ (define setuid-progs
+ (operating-system-setuid-programs os))
+
+ (define user-specs
+ (map user-account->gexp accounts))
+
+ (define groups
+ (append (operating-system-groups os)
+ (append-map service-user-groups services)))
+
+ (define group-specs
+ (map user-group->gexp groups))
+
+ (gexp->file "activate"
+ #~(begin
+ (eval-when (expand load eval)
+ ;; Make sure 'use-modules' below succeeds.
+ (set! %load-path (cons #$modules %load-path))
+ (set! %load-compiled-path
+ (cons #$compiled %load-compiled-path)))
+
+ (use-modules (guix build activation))
+
+ ;; Populate /etc.
+ (activate-etc #$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))
+
+ ;; Run the services' activation snippets.
+ ;; TODO: Use 'load-compiled'.
+ (for-each primitive-load '#$actions)
+
+ ;; Set up /run/current-system.
+ (activate-current-system)))))
+
(define (operating-system-boot-script os)
"Return the boot script for OS---i.e., the code started by the initrd once
we're running in the final root."
- (mlet* %store-monad
- ((services (sequence %store-monad (operating-system-services os)))
- (etc (operating-system-etc-directory os))
- (dmd-conf (dmd-configuration-file services etc)))
+ (mlet* %store-monad ((services (operating-system-services os))
+ (activate (operating-system-activation-script os))
+ (dmd-conf (dmd-configuration-file services)))
(gexp->file "boot"
- #~(execl (string-append #$dmd "/bin/dmd")
- "dmd" "--config" #$dmd-conf))))
+ #~(begin
+ ;; Activate the system.
+ ;; TODO: Use 'load-compiled'.
+ (primitive-load #$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 (match-lambda
+ (($ <file-system> device title "/")
+ #t)
+ (($ <file-system> device title mount-point type flags
+ options boot?)
+ boot?))
+ (operating-system-file-systems os)))
+
+ (mlet %store-monad
+ ((initrd ((operating-system-initrd os) boot-file-systems)))
+ (return #~(string-append #$initrd "/initrd"))))
+
+(define (kernel->grub-label kernel)
+ "Return a label for the GRUB menu entry that boots KERNEL."
+ (string-append "GNU system with "
+ (string-titlecase (package-name kernel)) " "
+ (package-version kernel)
+ " (technology preview)"))
+
+(define* (operating-system-grub.cfg os #:optional (old-entries '()))
+ "Return the GRUB configuration file for OS. Use OLD-ENTRIES to populate the
+\"old entries\" menu."
+ (mlet* %store-monad
+ ((system (operating-system-derivation os))
+ (root-fs -> (operating-system-root-file-system os))
+ (kernel -> (operating-system-kernel os))
+ (entries -> (list (menu-entry
+ (label (kernel->grub-label kernel))
+ (linux kernel)
+ (linux-arguments
+ (list (string-append "--root="
+ (file-system-device root-fs))
+ #~(string-append "--system=" #$system)
+ #~(string-append "--load=" #$system
+ "/boot")))
+ (initrd #~(string-append #$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 #$(operating-system-kernel os))
+ (initrd #$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))
- (services (sequence %store-monad (operating-system-services os)))
(boot (operating-system-boot-script os))
(kernel -> (operating-system-kernel os))
- (initrd (operating-system-initrd os))
- (initrd-file -> #~(string-append #$initrd "/initrd"))
- (entries -> (list (menu-entry
- (label (string-append
- "GNU system with "
- (package-full-name kernel)
- " (technology preview)"))
- (linux kernel)
- (linux-arguments
- (list "--root=/dev/sda1"
- #~(string-append "--load=" #$boot)))
- (initrd initrd-file))))
- (grub.cfg (grub-configuration-file entries)))
+ (initrd (operating-system-initrd-file os))
+ (params (operating-system-parameters-file os)))
(file-union "system"
`(("boot" ,#~#$boot)
("kernel" ,#~#$kernel)
- ("initrd" ,initrd-file)
+ ("parameters" ,#~#$params)
+ ("initrd" ,initrd)
("profile" ,#~#$profile)
- ("grub.cfg" ,#~#$grub.cfg)
("etc" ,#~#$etc)))))
;;; system.scm ends here
HCoop / jackhill / guix / guix.git / blobdiff