* gnu/tests/networking.scm (openvswitch-configuration-service, %openvswitch-os): New variables. (setup-openvswitch, run-openvswitch-test): New procedures. (%test-openvswitch): New public variable.
		
			
				
	
	
		
			245 lines
		
	
	
	
		
			8.4 KiB
		
	
	
	
		
			Scheme
		
	
	
	
	
	
			
		
		
	
	
			245 lines
		
	
	
	
		
			8.4 KiB
		
	
	
	
		
			Scheme
		
	
	
	
	
	
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2017 Thomas Danckaert <post@thomasdanckaert.be>
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;;; Copyright © 2017 Marius Bakke <mbakke@fastmail.com>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
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(define-module (gnu tests networking)
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  #:use-module (gnu tests)
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  #:use-module (gnu system)
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  #:use-module (gnu system vm)
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  #:use-module (gnu services)
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  #:use-module (gnu services networking)
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  #:use-module (guix gexp)
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  #:use-module (guix store)
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  #:use-module (guix monads)
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  #:use-module (gnu packages bash)
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  #:use-module (gnu packages networking)
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  #:use-module (gnu services shepherd)
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  #:export (%test-inetd %test-openvswitch))
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(define %inetd-os
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  ;; Operating system with 2 inetd services.
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  (simple-operating-system
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   (dhcp-client-service)
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   (service inetd-service-type
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            (inetd-configuration
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             (entries (list
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                       (inetd-entry
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                        (name "echo")
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                        (socket-type 'stream)
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                        (protocol "tcp")
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                        (wait? #f)
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                        (user "root"))
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                       (inetd-entry
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                        (name "dict")
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                        (socket-type 'stream)
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                        (protocol "tcp")
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                        (wait? #f)
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                        (user "root")
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                        (program (file-append bash
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                                              "/bin/bash"))
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                        (arguments
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                         (list "bash" (plain-file "my-dict.sh" "\
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while read line
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do
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    if [[ $line =~ ^DEFINE\\ (.*)$ ]]
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    then
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        case ${BASH_REMATCH[1]} in
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            Guix)
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                echo GNU Guix is a package management tool for the GNU system.
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                ;;
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            G-expression)
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                echo Like an S-expression but with a G.
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                ;;
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            *)
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                echo NO DEFINITION FOUND
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                ;;
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        esac
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    else
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        echo ERROR
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    fi
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done" ))))))))))
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(define* (run-inetd-test)
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  "Run tests in %INETD-OS, where the inetd service provides an echo service on
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port 7, and a dict service on port 2628."
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  (define os
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    (marionette-operating-system %inetd-os))
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  (define vm
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    (virtual-machine
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     (operating-system os)
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     (port-forwardings `((8007 . 7)
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                         (8628 . 2628)))))
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  (define test
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    (with-imported-modules '((gnu build marionette))
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      #~(begin
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          (use-modules (ice-9 rdelim)
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                       (srfi srfi-64)
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                       (gnu build marionette))
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          (define marionette
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            (make-marionette (list #$vm)))
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          (mkdir #$output)
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          (chdir #$output)
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          (test-begin "inetd")
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          ;; Make sure the PID file is created.
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          (test-assert "PID file"
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            (marionette-eval
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             '(file-exists? "/var/run/inetd.pid")
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             marionette))
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          ;; Test the echo service.
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          (test-equal "echo response"
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            "Hello, Guix!"
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            (let ((echo (socket PF_INET SOCK_STREAM 0))
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                  (addr (make-socket-address AF_INET INADDR_LOOPBACK 8007)))
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              (connect echo addr)
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              (display "Hello, Guix!\n" echo)
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              (let ((response (read-line echo)))
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                (close echo)
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                response)))
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          ;; Test the dict service
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          (test-equal "dict response"
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            "GNU Guix is a package management tool for the GNU system."
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            (let ((dict (socket PF_INET SOCK_STREAM 0))
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                  (addr (make-socket-address AF_INET INADDR_LOOPBACK 8628)))
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              (connect dict addr)
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              (display "DEFINE Guix\n" dict)
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              (let ((response (read-line dict)))
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                (close dict)
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                response)))
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          (test-end)
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          (exit (= (test-runner-fail-count (test-runner-current)) 0)))))
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  (gexp->derivation "inetd-test" test))
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(define %test-inetd
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  (system-test
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   (name "inetd")
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   (description "Connect to a host with an INETD server.")
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   (value (run-inetd-test))))
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;;;
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;;; Open vSwitch
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;;;
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(define setup-openvswitch
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  #~(let ((ovs-vsctl (lambda (str)
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                       (zero? (apply system*
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                                     #$(file-append openvswitch "/bin/ovs-vsctl")
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                                     (string-tokenize str)))))
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          (add-native-port (lambda (if)
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                             (string-append "--may-exist add-port br0 " if
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                                            " vlan_mode=native-untagged"
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                                            " -- set Interface " if
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                                            " type=internal"))))
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      (and (ovs-vsctl "--may-exist add-br br0")
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           ;; Connect eth0 as an "untagged" port (no VLANs).
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           (ovs-vsctl "--may-exist add-port br0 eth0 vlan_mode=native-untagged")
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           (ovs-vsctl (add-native-port "ovs0")))))
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(define openvswitch-configuration-service
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  (simple-service 'openvswitch-configuration shepherd-root-service-type
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                  (list (shepherd-service
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                         (provision '(openvswitch-configuration))
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                         (requirement '(vswitchd))
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                         (start #~(lambda ()
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                                    #$setup-openvswitch))
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                         (respawn? #f)))))
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(define %openvswitch-os
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  (simple-operating-system
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   (static-networking-service "ovs0" "10.1.1.1"
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                              #:netmask "255.255.255.252"
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                              #:requirement '(openvswitch-configuration))
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   (service openvswitch-service-type
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            (openvswitch-configuration
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             (package openvswitch)))
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   openvswitch-configuration-service))
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(define (run-openvswitch-test)
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  (define os
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    (marionette-operating-system %openvswitch-os
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                                 #:imported-modules '((gnu services herd))))
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  (define test
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    (with-imported-modules '((gnu build marionette))
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      #~(begin
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          (use-modules (gnu build marionette)
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                       (ice-9 popen)
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                       (ice-9 rdelim)
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                       (srfi srfi-64))
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          (define marionette
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            (make-marionette (list #$(virtual-machine os))))
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          (mkdir #$output)
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          (chdir #$output)
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          (test-begin "openvswitch")
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          ;; Make sure the bridge is created.
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          (test-assert "br0 exists"
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            (marionette-eval
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             '(zero? (system* "ovs-vsctl" "br-exists" "br0"))
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             marionette))
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          ;; Make sure eth0 is connected to the bridge.
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          (test-equal "eth0 is connected to br0"
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            "br0"
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            (marionette-eval
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             '(begin
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                (use-modules (ice-9 popen) (ice-9 rdelim))
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                (let* ((port (open-pipe*
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                              OPEN_READ
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                              (string-append #$openvswitch "/bin/ovs-vsctl")
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                              "port-to-br" "eth0"))
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                       (output (read-line port)))
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                  (close-pipe port)
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                  output))
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             marionette))
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          ;; Make sure the virtual interface got a static IP.
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          (test-assert "networking has started on ovs0"
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            (marionette-eval
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             '(begin
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                (use-modules (gnu services herd)
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                             (srfi srfi-1))
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                (live-service-running
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                 (find (lambda (live)
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                         (memq 'networking-ovs0
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                               (live-service-provision live)))
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                       (current-services))))
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             marionette))
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          (test-end)
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          (exit (= (test-runner-fail-count (test-runner-current)) 0)))))
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  (gexp->derivation "openvswitch-test" test))
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(define %test-openvswitch
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  (system-test
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   (name "openvswitch")
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   (description "Test a running OpenvSwitch configuration.")
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   (value (run-openvswitch-test))))
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