blob: 9247a43e6d5bdbd0584bfc85c88a9e29f8a2dd65 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
|
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2017 Clément Lassieur <clement@lassieur.org>
;;; 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 ssh)
#:use-module (gnu tests)
#:use-module (gnu system)
#:use-module (gnu system vm)
#:use-module (gnu services)
#:use-module (gnu services ssh)
#:use-module (gnu services networking)
#:use-module (gnu packages ssh)
#:use-module (guix gexp)
#:use-module (guix store)
#:export (%test-openssh
%test-dropbear))
(define* (run-ssh-test name ssh-service pid-file #:key (sftp? #f))
"Run a test of an OS running SSH-SERVICE, which writes its PID to PID-FILE.
SSH-SERVICE must be configured to listen on port 22 and to allow for root and
empty-password logins.
When SFTP? is true, run an SFTP server test."
(define os
(marionette-operating-system
(simple-operating-system (dhcp-client-service) ssh-service)
#:imported-modules '((gnu services herd)
(guix combinators))))
(define vm
(virtual-machine
(operating-system os)
(port-forwardings '((2222 . 22)))))
(define test
(with-imported-modules '((gnu build marionette))
(with-extensions (list guile-ssh)
#~(begin
(use-modules (gnu build marionette)
(srfi srfi-26)
(srfi srfi-64)
(ice-9 match)
(ssh session)
(ssh auth)
(ssh channel)
(ssh sftp))
(define marionette
;; Enable TCP forwarding of the guest's port 22.
(make-marionette (list #$vm)))
(define (make-session-for-test)
"Make a session with predefined parameters for a test."
(make-session #:user "root"
#:port 2222
#:host "localhost"
#:log-verbosity 'protocol))
(define (call-with-connected-session proc)
"Call the one-argument procedure PROC with a freshly created and
connected SSH session object, return the result of the procedure call. The
session is disconnected when the PROC is finished."
(let ((session (make-session-for-test)))
(dynamic-wind
(lambda ()
(let ((result (connect! session)))
(unless (equal? result 'ok)
(error "Could not connect to a server"
session result))))
(lambda () (proc session))
(lambda () (disconnect! session)))))
(define (call-with-connected-session/auth proc)
"Make an authenticated session. We should be able to connect as
root with an empty password."
(call-with-connected-session
(lambda (session)
;; Try the simple authentication methods. Dropbear requires
;; 'none' when there are no passwords, whereas OpenSSH accepts
;; 'password' with an empty password.
(let loop ((methods (list (cut userauth-password! <> "")
(cut userauth-none! <>))))
(match methods
(()
(error "all the authentication methods failed"))
((auth rest ...)
(match (pk 'auth (auth session))
('success
(proc session))
('denied
(loop rest)))))))))
(mkdir #$output)
(chdir #$output)
(test-begin "ssh-daemon")
;; Wait for sshd to be up and running.
(test-eq "service running"
'running!
(marionette-eval
'(begin
(use-modules (gnu services herd))
(start-service 'ssh-daemon)
'running!)
marionette))
;; Check sshd's PID file.
(test-equal "sshd PID"
(wait-for-file #$pid-file marionette)
(marionette-eval
'(begin
(use-modules (gnu services herd)
(srfi srfi-1))
(live-service-running
(find (lambda (live)
(memq 'ssh-daemon
(live-service-provision live)))
(current-services))))
marionette))
;; Connect to the guest over SSH. Make sure we can run a shell
;; command there.
(test-equal "shell command"
'hello
(call-with-connected-session/auth
(lambda (session)
;; FIXME: 'get-server-public-key' segfaults.
;; (get-server-public-key session)
(let ((channel (make-channel session)))
(channel-open-session channel)
(channel-request-exec channel "echo hello > /root/witness")
(and (zero? (channel-get-exit-status channel))
(wait-for-file "/root/witness" marionette))))))
;; Connect to the guest over SFTP. Make sure we can write and
;; read a file there.
(unless #$sftp?
(test-skip 1))
(test-equal "SFTP file writing and reading"
'hello
(call-with-connected-session/auth
(lambda (session)
(let ((sftp-session (make-sftp-session session))
(witness "/root/sftp-witness"))
(call-with-remote-output-file sftp-session witness
(cut display "hello" <>))
(call-with-remote-input-file sftp-session witness
read)))))
;; Connect to the guest over SSH. Make sure we can run commands
;; from the system profile.
(test-equal "run executables from system profile"
#t
(call-with-connected-session/auth
(lambda (session)
(let ((channel (make-channel session)))
(channel-open-session channel)
(channel-request-exec
channel
(string-append
"mkdir -p /root/.guix-profile/bin && "
"touch /root/.guix-profile/bin/path-witness && "
"chmod 755 /root/.guix-profile/bin/path-witness"))
(zero? (channel-get-exit-status channel))))))
;; Connect to the guest over SSH. Make sure we can run commands
;; from the user profile.
(test-equal "run executable from user profile"
#t
(call-with-connected-session/auth
(lambda (session)
(let ((channel (make-channel session)))
(channel-open-session channel)
(channel-request-exec channel "path-witness")
(zero? (channel-get-exit-status channel))))))
(test-end)
(exit (= (test-runner-fail-count (test-runner-current)) 0))))))
(gexp->derivation name test))
(define %test-openssh
(system-test
(name "openssh")
(description "Connect to a running OpenSSH daemon.")
(value (run-ssh-test name
;; Allow root logins with an empty password to
;; simplify testing.
(service openssh-service-type
(openssh-configuration
(permit-root-login #t)
(allow-empty-passwords? #t)))
"/var/run/sshd.pid"
#:sftp? #t))))
(define %test-dropbear
(system-test
(name "dropbear")
(description "Connect to a running Dropbear SSH daemon.")
(value (run-ssh-test name
(service dropbear-service-type
(dropbear-configuration
(root-login? #t)
(allow-empty-passwords? #t)))
"/var/run/dropbear.pid"))))
|
