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gnu: Move helper code to (gnu system …) modules.

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* gnu/packages/grub.scm (<menu-entry>, grub-configuration-file): Move
  to...
* gnu/system/grub.scm: ... here.  New file.
* gnu/packages/linux.scm (<pam-service>, <pam-entry>,
  pam-service->configuration, pam-service->directory,
  %pam-other-services, unix-pam-service): Move to...
* gnu/system/linux.scm: ... here.  New file.
* gnu/system/vm.scm (passwd-file): Move to...
* gnu/system/shadow.scm: ... here.  New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add
  gnu/system/{grub,linux,shadow}.scm.
This commit is contained in:
Ludovic Courtès 2013-09-11 22:36:50 +02:00
parent aedb72fbe0
commit 0ded70f37d
7 changed files with 298 additions and 205 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
gnu-system.am
View file

@ -179,6 +179,10 @@ GNU_SYSTEM_MODULES = \
gnu/packages/yasm.scm \
gnu/packages/zile.scm \
gnu/packages/zip.scm \
\
gnu/system/grub.scm \
gnu/system/linux.scm \
gnu/system/shadow.scm \
gnu/system/vm.scm
patchdir = $(guilemoduledir)/gnu/packages/patches

62
gnu/packages/grub.scm
View file

@ -19,9 +19,6 @@
(define-module (gnu packages grub)
#:use-module (guix download)
#:use-module (guix packages)
#:use-module (guix records)
#:use-module (guix store)
#:use-module (guix derivations)
#:use-module ((guix licenses) #:select (gpl3+))
#:use-module (guix build-system gnu)
#:use-module (gnu packages)
@ -33,11 +30,7 @@ (define-module (gnu packages grub)
#:use-module (gnu packages qemu)
#:use-module (gnu packages ncurses)
#:use-module (gnu packages cdrom)
#:use-module (srfi srfi-1)
#:use-module (ice-9 match)
#:export (menu-entry
menu-entry?
grub-configuration-file))
#:use-module (srfi srfi-1))
(define qemu-for-tests
;; Newer QEMU versions, such as 1.5.1, no longer support the 'shutdown'
@ -117,56 +110,3 @@ (define-public grub
the operating system kernel software (such as the Hurd or the Linux). The
kernel, in turn, initializes the rest of the operating system (e.g., GNU).")
(license gpl3+)))
;;;
;;; Configuration.
;;;
(define-record-type* <menu-entry>
menu-entry make-menu-entry
menu-entry?
(label menu-entry-label)
(linux menu-entry-linux)
(linux-arguments menu-entry-linux-arguments
(default '()))
(initrd menu-entry-initrd))
(define* (grub-configuration-file store entries
#:key (default-entry 1) (timeout 5)
(system (%current-system)))
"Return the GRUB configuration file in STORE for ENTRIES, a list of
<menu-entry> objects, defaulting to DEFAULT-ENTRY and with the given TIMEOUT."
(define prologue
(format #f "
set default=~a
set timeout=~a
search.file ~a~%"
default-entry timeout
(any (match-lambda
(($ <menu-entry> _ linux)
(let* ((drv (package-derivation store linux system))
(out (derivation-path->output-path drv)))
(string-append out "/bzImage"))))
entries)))
(define entry->text
(match-lambda
(($ <menu-entry> label linux arguments initrd)
(let ((linux-drv (package-derivation store linux system))
(initrd-drv (package-derivation store initrd system)))
;; XXX: Assume that INITRD is a directory containing an 'initrd' file.
(format #f "menuentry ~s {
linux ~a/bzImage ~a
initrd ~a/initrd
}~%"
label
(derivation-path->output-path linux-drv)
(string-join arguments)
(derivation-path->output-path initrd-drv))))))
(add-text-to-store store "grub.cfg"
(string-append prologue
(string-concatenate
(map entry->text entries)))
'()))

118
gnu/packages/linux.scm
View file

@ -32,18 +32,7 @@ (define-module (gnu packages linux)
#:use-module (gnu packages algebra)
#:use-module (guix packages)
#:use-module (guix download)
#:use-module (guix build-system gnu)
#:use-module (guix store)
#:use-module (guix derivations)
#:use-module (guix records)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:use-module (ice-9 match)
#:export (pam-service
pam-entry
pam-services->directory
%pam-other-services
unix-pam-service))
#:use-module (guix build-system gnu))
(define-public (system->linux-architecture arch)
"Return the Linux architecture name for ARCH, a Guix system name such as
@ -271,111 +260,6 @@ (define-public linux-pam
at login. Local and dynamic reconfiguration are its key features")
(license bsd-3)))
;; PAM services (see
;; <http://www.linux-pam.org/Linux-PAM-html/sag-configuration-file.html>.)
(define-record-type* <pam-service> pam-service
make-pam-service
pam-service?
(name pam-service-name) ; string
;; The four "management groups".
(account pam-service-account ; list of <pam-entry>
(default '()))
(auth pam-service-auth
(default '()))
(password pam-service-password
(default '()))
(session pam-service-session
(default '())))
(define-record-type* <pam-entry> pam-entry
make-pam-entry
pam-entry?
(control pam-entry-control) ; string
(module pam-entry-module) ; file name
(arguments pam-entry-arguments ; list of strings
(default '())))
(define (pam-service->configuration service)
"Return the configuration string for SERVICE, to be dumped in
/etc/pam.d/NAME, where NAME is the name of SERVICE."
(define (entry->string type entry)
(match entry
(($ <pam-entry> control module (arguments ...))
(string-append type " "
control " " module " "
(string-join arguments)
"\n"))))
(match service
(($ <pam-service> name account auth password session)
(string-concatenate
(append (map (cut entry->string "account" <>) account)
(map (cut entry->string "auth" <>) auth)
(map (cut entry->string "password" <>) password)
(map (cut entry->string "session" <>) session))))))
(define (pam-services->directory store services)
"Return the derivation to build the configuration directory to be used as
/etc/pam.d for SERVICES."
(let ((names (map pam-service-name services))
(files (map (match-lambda
((and service ($ <pam-service> name))
(let ((config (pam-service->configuration service)))
(add-text-to-store store
(string-append name ".pam")
config '()))))
services)))
(define builder
'(begin
(use-modules (ice-9 match))
(let ((out (assoc-ref %outputs "out")))
(mkdir out)
(for-each (match-lambda
((name . file)
(symlink file (string-append out "/" name))))
%build-inputs)
#t)))
(build-expression->derivation store "pam.d" (%current-system)
builder
(zip names files))))
(define %pam-other-services
;; The "other" PAM configuration, which denies everything (see
;; <http://www.linux-pam.org/Linux-PAM-html/sag-configuration-example.html>.)
(let ((deny (pam-entry
(control "required")
(module "pam_deny.so"))))
(pam-service
(name "other")
(account (list deny))
(auth (list deny))
(password (list deny))
(session (list deny)))))
(define unix-pam-service
(let ((unix (pam-entry
(control "required")
(module "pam_unix.so"))))
(lambda* (name #:key allow-empty-passwords?)
"Return a standard Unix-style PAM service for NAME. When
ALLOW-EMPTY-PASSWORDS? is true, allow empty passwords."
;; See <http://www.linux-pam.org/Linux-PAM-html/sag-configuration-example.html>.
(let ((name* name))
(pam-service
(name name*)
(account (list unix))
(auth (list (if allow-empty-passwords?
(pam-entry
(control "required")
(module "pam_unix.so")
(arguments '("nullok")))
unix)))
(password (list unix))
(session (list unix)))))))
;;;
;;; Miscellaneous.

84
gnu/system/grub.scm Normal file
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@ -0,0 +1,84 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013 Ludovic Courtès <ludo@gnu.org>
;;;
;;; 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 grub)
#:use-module (guix store)
#:use-module (guix packages)
#:use-module (guix derivations)
#:use-module (guix records)
#:use-module (ice-9 match)
#:use-module (srfi srfi-1)
#:export (menu-entry
menu-entry?
grub-configuration-file))
;;; Commentary:
;;;
;;; Configuration of GNU GRUB.
;;;
;;; Code:
(define-record-type* <menu-entry>
menu-entry make-menu-entry
menu-entry?
(label menu-entry-label)
(linux menu-entry-linux)
(linux-arguments menu-entry-linux-arguments
(default '()))
(initrd menu-entry-initrd))
(define* (grub-configuration-file store entries
#:key (default-entry 1) (timeout 5)
(system (%current-system)))
"Return the GRUB configuration file in STORE for ENTRIES, a list of
<menu-entry> objects, defaulting to DEFAULT-ENTRY and with the given TIMEOUT."
(define prologue
(format #f "
set default=~a
set timeout=~a
search.file ~a~%"
default-entry timeout
(any (match-lambda
(($ <menu-entry> _ linux)
(let* ((drv (package-derivation store linux system))
(out (derivation-path->output-path drv)))
(string-append out "/bzImage"))))
entries)))
(define entry->text
(match-lambda
(($ <menu-entry> label linux arguments initrd)
(let ((linux-drv (package-derivation store linux system))
(initrd-drv (package-derivation store initrd system)))
;; XXX: Assume that INITRD is a directory containing an 'initrd' file.
(format #f "menuentry ~s {
linux ~a/bzImage ~a
initrd ~a/initrd
}~%"
label
(derivation-path->output-path linux-drv)
(string-join arguments)
(derivation-path->output-path initrd-drv))))))
(add-text-to-store store "grub.cfg"
(string-append prologue
(string-concatenate
(map entry->text entries)))
'()))
;;; grub.scm ends here

145
gnu/system/linux.scm Normal file
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@ -0,0 +1,145 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013 Ludovic Courtès <ludo@gnu.org>
;;;
;;; 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 linux)
#:use-module (guix store)
#:use-module (guix records)
#:use-module (guix derivations)
#:use-module (ice-9 match)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:use-module ((guix utils) #:select (%current-system))
#:export (pam-service
pam-entry
pam-services->directory
%pam-other-services
unix-pam-service))
;;; Commentary:
;;;
;;; Configuration of Linux-related things, including pluggable authentication
;;; modules (PAM).
;;;
;;; Code:
;; PAM services (see
;; <http://www.linux-pam.org/Linux-PAM-html/sag-configuration-file.html>.)
(define-record-type* <pam-service> pam-service
make-pam-service
pam-service?
(name pam-service-name) ; string
;; The four "management groups".
(account pam-service-account ; list of <pam-entry>
(default '()))
(auth pam-service-auth
(default '()))
(password pam-service-password
(default '()))
(session pam-service-session
(default '())))
(define-record-type* <pam-entry> pam-entry
make-pam-entry
pam-entry?
(control pam-entry-control) ; string
(module pam-entry-module) ; file name
(arguments pam-entry-arguments ; list of strings
(default '())))
(define (pam-service->configuration service)
"Return the configuration string for SERVICE, to be dumped in
/etc/pam.d/NAME, where NAME is the name of SERVICE."
(define (entry->string type entry)
(match entry
(($ <pam-entry> control module (arguments ...))
(string-append type " "
control " " module " "
(string-join arguments)
"\n"))))
(match service
(($ <pam-service> name account auth password session)
(string-concatenate
(append (map (cut entry->string "account" <>) account)
(map (cut entry->string "auth" <>) auth)
(map (cut entry->string "password" <>) password)
(map (cut entry->string "session" <>) session))))))
(define (pam-services->directory store services)
"Return the derivation to build the configuration directory to be used as
/etc/pam.d for SERVICES."
(let ((names (map pam-service-name services))
(files (map (match-lambda
((and service ($ <pam-service> name))
(let ((config (pam-service->configuration service)))
(add-text-to-store store
(string-append name ".pam")
config '()))))
services)))
(define builder
'(begin
(use-modules (ice-9 match))
(let ((out (assoc-ref %outputs "out")))
(mkdir out)
(for-each (match-lambda
((name . file)
(symlink file (string-append out "/" name))))
%build-inputs)
#t)))
(build-expression->derivation store "pam.d" (%current-system)
builder
(zip names files))))
(define %pam-other-services
;; The "other" PAM configuration, which denies everything (see
;; <http://www.linux-pam.org/Linux-PAM-html/sag-configuration-example.html>.)
(let ((deny (pam-entry
(control "required")
(module "pam_deny.so"))))
(pam-service
(name "other")
(account (list deny))
(auth (list deny))
(password (list deny))
(session (list deny)))))
(define unix-pam-service
(let ((unix (pam-entry
(control "required")
(module "pam_unix.so"))))
(lambda* (name #:key allow-empty-passwords?)
"Return a standard Unix-style PAM service for NAME. When
ALLOW-EMPTY-PASSWORDS? is true, allow empty passwords."
;; See <http://www.linux-pam.org/Linux-PAM-html/sag-configuration-example.html>.
(let ((name* name))
(pam-service
(name name*)
(account (list unix))
(auth (list (if allow-empty-passwords?
(pam-entry
(control "required")
(module "pam_unix.so")
(arguments '("nullok")))
unix)))
(password (list unix))
(session (list unix)))))))
;;; linux.scm ends here

57
gnu/system/shadow.scm Normal file
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@ -0,0 +1,57 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013 Ludovic Courtès <ludo@gnu.org>
;;;
;;; 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 shadow)
#:use-module (guix store)
#:use-module (ice-9 match)
#:export (passwd-file))
;;; Commentary:
;;;
;;; Utilities for configuring the Shadow tool suite ('login', 'passwd', etc.)
;;;
;;; Code:
(define* (passwd-file store accounts #:key shadow?)
"Return a password file for ACCOUNTS, a list of vectors as returned by
'getpwnam'. If SHADOW? is true, then it is a /etc/shadow file, otherwise it
is a /etc/passwd file."
;; XXX: The resulting file is world-readable, so beware when SHADOW? is #t!
(define contents
(let loop ((accounts accounts)
(result '()))
(match accounts
((#(name pass uid gid comment home-dir shell) rest ...)
(loop rest
(cons (if shadow?
(string-append name
":" ; XXX: use (crypt PASS …)?
":::::::")
(string-append name
":" "x"
":" (number->string uid)
":" (number->string gid)
":" comment ":" home-dir ":" shell))
result)))
(()
(string-join (reverse result) "\n" 'suffix)))))
(add-text-to-store store (if shadow? "shadow" "passwd")
contents '()))
;;; shadow.scm ends here

33
gnu/system/vm.scm
View file

@ -34,9 +34,15 @@ (define-module (gnu system vm)
#:use-module ((gnu packages make-bootstrap)
#:select (%guile-static-stripped))
#:use-module (gnu packages system)
#:use-module (gnu system shadow)
#:use-module (gnu system linux)
#:use-module (gnu system grub)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:use-module (ice-9 match)
#:export (expression->derivation-in-linux-vm
qemu-image
system-qemu-image))
@ -346,33 +352,6 @@ (define (graph-from-file file)
;;; Stand-alone VM image.
;;;
(define* (passwd-file store accounts #:key shadow?)
"Return a password file for ACCOUNTS, a list of vectors as returned by
'getpwnam'. If SHADOW? is true, then it is a /etc/shadow file, otherwise it
is a /etc/passwd file."
;; XXX: The resulting file is world-readable, so beware when SHADOW? is #t!
(define contents
(let loop ((accounts accounts)
(result '()))
(match accounts
((#(name pass uid gid comment home-dir shell) rest ...)
(loop rest
(cons (if shadow?
(string-append name
":" ; XXX: use (crypt PASS …)?
":::::::")
(string-append name
":" "x"
":" (number->string uid)
":" (number->string gid)
":" comment ":" home-dir ":" shell))
result)))
(()
(string-join (reverse result) "\n" 'suffix)))))
(add-text-to-store store (if shadow? "shadow" "passwd")
contents '()))
(define (system-qemu-image store)
"Return the derivation of a QEMU image of the GNU system."
(define %pam-services