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guix/gnu/tests/networking.scm

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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017 Thomas Danckaert <post@thomasdanckaert.be>
;;; Copyright © 2017 Marius Bakke <mbakke@fastmail.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 tests networking)
#:use-module (gnu tests)
#:use-module (gnu system)
#:use-module (gnu system vm)
#:use-module (gnu services)
#:use-module (gnu services networking)
#:use-module (guix gexp)
#:use-module (guix store)
#:use-module (guix monads)
#:use-module (gnu packages bash)
#:use-module (gnu packages networking)
#:use-module (gnu services shepherd)
#:export (%test-inetd %test-openvswitch))
(define %inetd-os
;; Operating system with 2 inetd services.
(simple-operating-system
(dhcp-client-service)
(service inetd-service-type
(inetd-configuration
(entries (list
(inetd-entry
(name "echo")
(socket-type 'stream)
(protocol "tcp")
(wait? #f)
(user "root"))
(inetd-entry
(name "dict")
(socket-type 'stream)
(protocol "tcp")
(wait? #f)
(user "root")
(program (file-append bash
"/bin/bash"))
(arguments
(list "bash" (plain-file "my-dict.sh" "\
while read line
do
if [[ $line =~ ^DEFINE\\ (.*)$ ]]
then
case ${BASH_REMATCH[1]} in
Guix)
echo GNU Guix is a package management tool for the GNU system.
;;
G-expression)
echo Like an S-expression but with a G.
;;
*)
echo NO DEFINITION FOUND
;;
esac
else
echo ERROR
fi
done" ))))))))))
(define* (run-inetd-test)
"Run tests in %INETD-OS, where the inetd service provides an echo service on
port 7, and a dict service on port 2628."
(define os
(marionette-operating-system %inetd-os))
(define vm
(virtual-machine
(operating-system os)
(port-forwardings `((8007 . 7)
(8628 . 2628)))))
(define test
(with-imported-modules '((gnu build marionette))
#~(begin
(use-modules (ice-9 rdelim)
(srfi srfi-64)
(gnu build marionette))
(define marionette
(make-marionette (list #$vm)))
(mkdir #$output)
(chdir #$output)
(test-begin "inetd")
;; Make sure the PID file is created.
(test-assert "PID file"
(marionette-eval
'(file-exists? "/var/run/inetd.pid")
marionette))
;; Test the echo service.
(test-equal "echo response"
"Hello, Guix!"
(let ((echo (socket PF_INET SOCK_STREAM 0))
(addr (make-socket-address AF_INET INADDR_LOOPBACK 8007)))
(connect echo addr)
(display "Hello, Guix!\n" echo)
(let ((response (read-line echo)))
(close echo)
response)))
;; Test the dict service
(test-equal "dict response"
"GNU Guix is a package management tool for the GNU system."
(let ((dict (socket PF_INET SOCK_STREAM 0))
(addr (make-socket-address AF_INET INADDR_LOOPBACK 8628)))
(connect dict addr)
(display "DEFINE Guix\n" dict)
(let ((response (read-line dict)))
(close dict)
response)))
(test-end)
(exit (= (test-runner-fail-count (test-runner-current)) 0)))))
(gexp->derivation "inetd-test" test))
(define %test-inetd
(system-test
(name "inetd")
(description "Connect to a host with an INETD server.")
(value (run-inetd-test))))
;;;
;;; Open vSwitch
;;;
(define setup-openvswitch
#~(let ((ovs-vsctl (lambda (str)
(zero? (apply system*
#$(file-append openvswitch "/bin/ovs-vsctl")
(string-tokenize str)))))
(add-native-port (lambda (if)
(string-append "--may-exist add-port br0 " if
" vlan_mode=native-untagged"
" -- set Interface " if
" type=internal"))))
(and (ovs-vsctl "--may-exist add-br br0")
;; Connect eth0 as an "untagged" port (no VLANs).
(ovs-vsctl "--may-exist add-port br0 eth0 vlan_mode=native-untagged")
(ovs-vsctl (add-native-port "ovs0")))))
(define openvswitch-configuration-service
(simple-service 'openvswitch-configuration shepherd-root-service-type
(list (shepherd-service
(provision '(openvswitch-configuration))
(requirement '(vswitchd))
(start #~(lambda ()
#$setup-openvswitch))
(respawn? #f)))))
(define %openvswitch-os
(simple-operating-system
(static-networking-service "ovs0" "10.1.1.1"
#:netmask "255.255.255.252"
#:requirement '(openvswitch-configuration))
(service openvswitch-service-type
(openvswitch-configuration
(package openvswitch)))
openvswitch-configuration-service))
(define (run-openvswitch-test)
(define os
(marionette-operating-system %openvswitch-os
#:imported-modules '((gnu services herd))))
(define test
(with-imported-modules '((gnu build marionette))
#~(begin
(use-modules (gnu build marionette)
(ice-9 popen)
(ice-9 rdelim)
(srfi srfi-64))
(define marionette
(make-marionette (list #$(virtual-machine os))))
(mkdir #$output)
(chdir #$output)
(test-begin "openvswitch")
;; Make sure the bridge is created.
(test-assert "br0 exists"
(marionette-eval
'(zero? (system* "ovs-vsctl" "br-exists" "br0"))
marionette))
;; Make sure eth0 is connected to the bridge.
(test-equal "eth0 is connected to br0"
"br0"
(marionette-eval
'(begin
(use-modules (ice-9 popen) (ice-9 rdelim))
(let* ((port (open-pipe*
OPEN_READ
(string-append #$openvswitch "/bin/ovs-vsctl")
"port-to-br" "eth0"))
(output (read-line port)))
(close-pipe port)
output))
marionette))
;; Make sure the virtual interface got a static IP.
(test-assert "networking has started on ovs0"
(marionette-eval
'(begin
(use-modules (gnu services herd)
(srfi srfi-1))
(live-service-running
(find (lambda (live)
(memq 'networking-ovs0
(live-service-provision live)))
(current-services))))
marionette))
(test-end)
(exit (= (test-runner-fail-count (test-runner-current)) 0)))))
(gexp->derivation "openvswitch-test" test))
(define %test-openvswitch
(system-test
(name "openvswitch")
(description "Test a running OpenvSwitch configuration.")
(value (run-openvswitch-test))))