131 lines
5.3 KiB
Scheme
131 lines
5.3 KiB
Scheme
|
;;; GNU Guix --- Functional package management for GNU
|
||
|
|
;;; Copyright © 2016 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 tests)
|
||
|
|
#:use-module (guix gexp)
|
||
|
|
#:use-module (gnu system)
|
||
|
|
#:use-module (gnu services)
|
||
|
|
#:use-module (gnu services shepherd)
|
||
|
|
#:export (backdoor-service-type
|
||
|
|
marionette-operating-system))
|
||
|
|
|
||
|
|
;;; Commentary:
|
||
|
|
;;;
|
||
|
|
;;; This module provides the infrastructure to run operating system tests.
|
||
|
|
;;; The most important part of that is tools to instrument the OS under test,
|
||
|
|
;;; essentially allowing to run in a virtual machine controlled by the host
|
||
|
|
;;; system--hence the name "marionette".
|
||
|
|
;;;
|
||
|
|
;;; Code:
|
||
|
|
|
||
|
|
(define (marionette-shepherd-service imported-modules)
|
||
|
|
"Return the Shepherd service for the marionette REPL"
|
||
|
|
(define device
|
||
|
|
"/dev/hvc0")
|
||
|
|
|
||
|
|
(list (shepherd-service
|
||
|
|
(provision '(marionette))
|
||
|
|
(requirement '(udev)) ;so that DEVICE is available
|
||
|
|
(modules '((ice-9 match)
|
||
|
|
(srfi srfi-9 gnu)
|
||
|
|
(guix build syscalls)
|
||
|
|
(rnrs bytevectors)))
|
||
|
|
(imported-modules `((guix build syscalls)
|
||
|
|
,@imported-modules))
|
||
|
|
(start
|
||
|
|
#~(lambda ()
|
||
|
|
(define (clear-echo termios)
|
||
|
|
(set-field termios (termios-local-flags)
|
||
|
|
(logand (lognot (local-flags ECHO))
|
||
|
|
(termios-local-flags termios))))
|
||
|
|
|
||
|
|
(define (self-quoting? x)
|
||
|
|
(letrec-syntax ((one-of (syntax-rules ()
|
||
|
|
((_) #f)
|
||
|
|
((_ pred rest ...)
|
||
|
|
(or (pred x)
|
||
|
|
(one-of rest ...))))))
|
||
|
|
(one-of symbol? string? pair? null? vector?
|
||
|
|
bytevector? number? boolean?)))
|
||
|
|
|
||
|
|
(match (primitive-fork)
|
||
|
|
(0
|
||
|
|
(dynamic-wind
|
||
|
|
(const #t)
|
||
|
|
(lambda ()
|
||
|
|
(let* ((repl (open-file #$device "r+0"))
|
||
|
|
(termios (tcgetattr (fileno repl)))
|
||
|
|
(console (open-file "/dev/console" "r+0")))
|
||
|
|
;; Don't echo input back.
|
||
|
|
(tcsetattr (fileno repl) (tcsetattr-action TCSANOW)
|
||
|
|
(clear-echo termios))
|
||
|
|
|
||
|
|
;; Redirect output to the console.
|
||
|
|
(close-fdes 1)
|
||
|
|
(close-fdes 2)
|
||
|
|
(dup2 (fileno console) 1)
|
||
|
|
(dup2 (fileno console) 2)
|
||
|
|
(close-port console)
|
||
|
|
|
||
|
|
(display 'ready repl)
|
||
|
|
(let loop ()
|
||
|
|
(newline repl)
|
||
|
|
|
||
|
|
(match (read repl)
|
||
|
|
((? eof-object?)
|
||
|
|
(primitive-exit 0))
|
||
|
|
(expr
|
||
|
|
(catch #t
|
||
|
|
(lambda ()
|
||
|
|
(let ((result (primitive-eval expr)))
|
||
|
|
(write (if (self-quoting? result)
|
||
|
|
result
|
||
|
|
(object->string result))
|
||
|
|
repl)))
|
||
|
|
(lambda (key . args)
|
||
|
|
(print-exception (current-error-port)
|
||
|
|
(stack-ref (make-stack #t) 1)
|
||
|
|
key args)
|
||
|
|
(write #f repl)))))
|
||
|
|
(loop))))
|
||
|
|
(lambda ()
|
||
|
|
(primitive-exit 1))))
|
||
|
|
(pid
|
||
|
|
pid))))
|
||
|
|
(stop #~(make-kill-destructor)))))
|
||
|
|
|
||
|
|
(define marionette-service-type
|
||
|
|
;; This is the type of the "marionette" service, allowing a guest system to
|
||
|
|
;; be manipulated from the host. This marionette REPL is essentially a
|
||
|
|
;; universal marionette.
|
||
|
|
(service-type (name 'marionette-repl)
|
||
|
|
(extensions
|
||
|
|
(list (service-extension shepherd-root-service-type
|
||
|
|
marionette-shepherd-service)))))
|
||
|
|
|
||
|
|
(define* (marionette-operating-system os
|
||
|
|
#:key (imported-modules '()))
|
||
|
|
"Return a marionetteed variant of OS such that OS can be used as a marionette
|
||
|
|
in a virtual machine--i.e., controlled from the host system."
|
||
|
|
(operating-system
|
||
|
|
(inherit os)
|
||
|
|
(services (cons (service marionette-service-type imported-modules)
|
||
|
|
(operating-system-user-services os)))))
|
||
|
|
|
||
|
|
;;; tests.scm ends here
|