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29fa45f4 | 1 | ;;; GNU Guix --- Functional package management for GNU |
7adbe85e | 2 | ;;; Copyright © 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org> |
b4abdeb6 | 3 | ;;; Copyright © 2015 David Thompson <davet@gnu.org> |
29fa45f4 LC |
4 | ;;; |
5 | ;;; This file is part of GNU Guix. | |
6 | ;;; | |
7 | ;;; GNU Guix is free software; you can redistribute it and/or modify it | |
8 | ;;; under the terms of the GNU General Public License as published by | |
9 | ;;; the Free Software Foundation; either version 3 of the License, or (at | |
10 | ;;; your option) any later version. | |
11 | ;;; | |
12 | ;;; GNU Guix is distributed in the hope that it will be useful, but | |
13 | ;;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | ;;; GNU General Public License for more details. | |
16 | ;;; | |
17 | ;;; You should have received a copy of the GNU General Public License | |
18 | ;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. | |
19 | ||
20 | (define-module (test-syscalls) | |
df3ce5c1 | 21 | #:use-module (guix utils) |
29fa45f4 | 22 | #:use-module (guix build syscalls) |
b7d48312 | 23 | #:use-module (gnu build linux-container) |
4d54785c | 24 | #:use-module (srfi srfi-1) |
381ac93b | 25 | #:use-module (srfi srfi-26) |
7585016f LC |
26 | #:use-module (srfi srfi-64) |
27 | #:use-module (ice-9 match)) | |
29fa45f4 LC |
28 | |
29 | ;; Test the (guix build syscalls) module, although there's not much that can | |
30 | ;; actually be tested without being root. | |
31 | ||
32 | (test-begin "syscalls") | |
33 | ||
34 | (test-equal "mount, ENOENT" | |
35 | ENOENT | |
36 | (catch 'system-error | |
37 | (lambda () | |
38 | (mount "/dev/null" "/does-not-exist" "ext2") | |
39 | #f) | |
40 | (compose system-error-errno list))) | |
41 | ||
35066aa5 | 42 | (test-assert "umount, ENOENT/EPERM" |
29fa45f4 LC |
43 | (catch 'system-error |
44 | (lambda () | |
45 | (umount "/does-not-exist") | |
46 | #f) | |
35066aa5 LC |
47 | (lambda args |
48 | ;; Both return values have been encountered in the wild. | |
49 | (memv (system-error-errno args) (list EPERM ENOENT))))) | |
29fa45f4 | 50 | |
ccea821b | 51 | (test-assert "mount-points" |
381ac93b LC |
52 | ;; Reportedly "/" is not always listed as a mount point, so check a few |
53 | ;; others (see <http://bugs.gnu.org/20261>.) | |
54 | (any (cute member <> (mount-points)) | |
55 | '("/" "/proc" "/sys" "/dev"))) | |
ccea821b | 56 | |
715fc9d4 LC |
57 | (test-assert "swapon, ENOENT/EPERM" |
58 | (catch 'system-error | |
59 | (lambda () | |
60 | (swapon "/does-not-exist") | |
61 | #f) | |
62 | (lambda args | |
63 | (memv (system-error-errno args) (list EPERM ENOENT))))) | |
64 | ||
2793c0fb | 65 | (test-assert "swapoff, ENOENT/EINVAL/EPERM" |
715fc9d4 LC |
66 | (catch 'system-error |
67 | (lambda () | |
68 | (swapoff "/does-not-exist") | |
69 | #f) | |
70 | (lambda args | |
2793c0fb | 71 | (memv (system-error-errno args) (list EPERM EINVAL ENOENT))))) |
715fc9d4 | 72 | |
b4abdeb6 DT |
73 | (test-assert "mkdtemp!" |
74 | (let* ((tmp (or (getenv "TMPDIR") "/tmp")) | |
75 | (dir (mkdtemp! (string-append tmp "/guix-test-XXXXXX")))) | |
76 | (and (file-exists? dir) | |
77 | (begin | |
78 | (rmdir dir) | |
79 | #t)))) | |
80 | ||
a1f70878 LC |
81 | (test-equal "statfs, ENOENT" |
82 | ENOENT | |
83 | (catch 'system-error | |
84 | (lambda () | |
85 | (statfs "/does-not-exist")) | |
86 | (compose system-error-errno list))) | |
87 | ||
88 | (test-assert "statfs" | |
89 | (let ((fs (statfs "/"))) | |
90 | (and (file-system? fs) | |
91 | (> (file-system-block-size fs) 0) | |
92 | (>= (file-system-blocks-available fs) 0) | |
93 | (>= (file-system-blocks-free fs) | |
94 | (file-system-blocks-available fs))))) | |
95 | ||
8950ed11 DT |
96 | (define (user-namespace pid) |
97 | (string-append "/proc/" (number->string pid) "/ns/user")) | |
98 | ||
b7d48312 DT |
99 | (define perform-container-tests? |
100 | (and (user-namespace-supported?) | |
101 | (unprivileged-user-namespace-supported?))) | |
102 | ||
103 | (unless perform-container-tests? | |
b62a3ebc | 104 | (test-skip 1)) |
8950ed11 DT |
105 | (test-assert "clone" |
106 | (match (clone (logior CLONE_NEWUSER SIGCHLD)) | |
107 | (0 (primitive-exit 42)) | |
108 | (pid | |
109 | ;; Check if user namespaces are different. | |
110 | (and (not (equal? (readlink (user-namespace pid)) | |
111 | (readlink (user-namespace (getpid))))) | |
112 | (match (waitpid pid) | |
113 | ((_ . status) | |
114 | (= 42 (status:exit-val status)))))))) | |
115 | ||
b7d48312 | 116 | (unless perform-container-tests? |
b62a3ebc | 117 | (test-skip 1)) |
43ace6ea DT |
118 | (test-assert "setns" |
119 | (match (clone (logior CLONE_NEWUSER SIGCHLD)) | |
120 | (0 (primitive-exit 0)) | |
121 | (clone-pid | |
122 | (match (pipe) | |
123 | ((in . out) | |
124 | (match (primitive-fork) | |
125 | (0 | |
126 | (close in) | |
127 | ;; Join the user namespace. | |
128 | (call-with-input-file (user-namespace clone-pid) | |
129 | (lambda (port) | |
130 | (setns (port->fdes port) 0))) | |
131 | (write 'done out) | |
132 | (close out) | |
133 | (primitive-exit 0)) | |
134 | (fork-pid | |
135 | (close out) | |
136 | ;; Wait for the child process to join the namespace. | |
137 | (read in) | |
138 | (let ((result (and (equal? (readlink (user-namespace clone-pid)) | |
139 | (readlink (user-namespace fork-pid)))))) | |
140 | ;; Clean up. | |
141 | (waitpid clone-pid) | |
142 | (waitpid fork-pid) | |
143 | result)))))))) | |
8950ed11 | 144 | |
b7d48312 | 145 | (unless perform-container-tests? |
b62a3ebc | 146 | (test-skip 1)) |
df3ce5c1 DT |
147 | (test-assert "pivot-root" |
148 | (match (pipe) | |
149 | ((in . out) | |
150 | (match (clone (logior CLONE_NEWUSER CLONE_NEWNS SIGCHLD)) | |
151 | (0 | |
152 | (close in) | |
153 | (call-with-temporary-directory | |
154 | (lambda (root) | |
155 | (let ((put-old (string-append root "/real-root"))) | |
156 | (mount "none" root "tmpfs") | |
157 | (mkdir put-old) | |
158 | (call-with-output-file (string-append root "/test") | |
159 | (lambda (port) | |
160 | (display "testing\n" port))) | |
161 | (pivot-root root put-old) | |
162 | ;; The test file should now be located inside the root directory. | |
163 | (write (file-exists? "/test") out) | |
164 | (close out)))) | |
165 | (primitive-exit 0)) | |
166 | (pid | |
167 | (close out) | |
168 | (let ((result (read in))) | |
169 | (close in) | |
170 | (and (zero? (match (waitpid pid) | |
171 | ((_ . status) | |
172 | (status:exit-val status)))) | |
173 | (eq? #t result)))))))) | |
174 | ||
b89e7405 LC |
175 | (test-assert "all-network-interface-names" |
176 | (match (all-network-interface-names) | |
4d54785c LC |
177 | (((? string? names) ..1) |
178 | (member "lo" names)))) | |
179 | ||
b89e7405 LC |
180 | (test-assert "network-interface-names" |
181 | (match (network-interface-names) | |
7585016f | 182 | (((? string? names) ..1) |
b89e7405 | 183 | (lset<= string=? names (all-network-interface-names))))) |
7585016f | 184 | |
973eea34 | 185 | (test-assert "network-interface-flags" |
c9bf64d6 | 186 | (let* ((sock (socket AF_INET SOCK_STREAM 0)) |
973eea34 LC |
187 | (flags (network-interface-flags sock "lo"))) |
188 | (close-port sock) | |
189 | (and (not (zero? (logand flags IFF_LOOPBACK))) | |
190 | (not (zero? (logand flags IFF_UP)))))) | |
191 | ||
192 | (test-equal "loopback-network-interface?" | |
193 | ENODEV | |
194 | (and (loopback-network-interface? "lo") | |
195 | (catch 'system-error | |
196 | (lambda () | |
197 | (loopback-network-interface? "nonexistent") | |
198 | #f) | |
199 | (lambda args | |
200 | (system-error-errno args))))) | |
201 | ||
c9bf64d6 | 202 | (test-skip (if (zero? (getuid)) 1 0)) |
d35c5e29 | 203 | (test-assert "set-network-interface-flags" |
c9bf64d6 LC |
204 | (let ((sock (socket AF_INET SOCK_STREAM 0))) |
205 | (catch 'system-error | |
206 | (lambda () | |
207 | (set-network-interface-flags sock "lo" IFF_UP)) | |
208 | (lambda args | |
209 | (close-port sock) | |
d35c5e29 LC |
210 | ;; We get EPERM with Linux 3.18ish and EACCES with 2.6.32. |
211 | (memv (system-error-errno args) (list EPERM EACCES)))))) | |
c9bf64d6 LC |
212 | |
213 | (test-equal "network-interface-address lo" | |
214 | (make-socket-address AF_INET (inet-pton AF_INET "127.0.0.1") 0) | |
215 | (let* ((sock (socket AF_INET SOCK_STREAM 0)) | |
216 | (addr (network-interface-address sock "lo"))) | |
217 | (close-port sock) | |
218 | addr)) | |
219 | ||
54e515eb | 220 | (test-skip (if (zero? (getuid)) 1 0)) |
d35c5e29 | 221 | (test-assert "set-network-interface-address" |
c9bf64d6 LC |
222 | (let ((sock (socket AF_INET SOCK_STREAM 0))) |
223 | (catch 'system-error | |
224 | (lambda () | |
225 | (set-network-interface-address sock "nonexistent" | |
226 | (make-socket-address | |
227 | AF_INET | |
228 | (inet-pton AF_INET "127.12.14.15") | |
229 | 0))) | |
230 | (lambda args | |
231 | (close-port sock) | |
d35c5e29 LC |
232 | ;; We get EPERM with Linux 3.18ish and EACCES with 2.6.32. |
233 | (memv (system-error-errno args) (list EPERM EACCES)))))) | |
c9bf64d6 | 234 | |
e7f5691d LC |
235 | (test-equal "network-interfaces returns one or more interfaces" |
236 | '(#t #t #t) | |
237 | (match (network-interfaces) | |
238 | ((interfaces ..1) | |
239 | (list (every interface? interfaces) | |
240 | (every string? (map interface-name interfaces)) | |
7adbe85e LC |
241 | (every (lambda (sockaddr) |
242 | ;; Sometimes interfaces have no associated address. | |
243 | (or (vector? sockaddr) | |
244 | (not sockaddr))) | |
245 | (map interface-address interfaces)))))) | |
e7f5691d LC |
246 | |
247 | (test-equal "network-interfaces returns \"lo\"" | |
248 | (list #t (make-socket-address AF_INET (inet-pton AF_INET "127.0.0.1") 0)) | |
249 | (match (filter (lambda (interface) | |
250 | (string=? "lo" (interface-name interface))) | |
251 | (network-interfaces)) | |
252 | ((loopbacks ..1) | |
253 | (list (every (lambda (lo) | |
254 | (not (zero? (logand IFF_LOOPBACK (interface-flags lo))))) | |
255 | loopbacks) | |
256 | (match (find (lambda (lo) | |
257 | (= AF_INET (sockaddr:fam (interface-address lo)))) | |
258 | loopbacks) | |
259 | (#f #f) | |
260 | (lo (interface-address lo))))))) | |
261 | ||
5cd25aad | 262 | (test-assert "terminal-window-size ENOTTY" |
29ff6d9f LC |
263 | (call-with-input-file "/dev/null" |
264 | (lambda (port) | |
265 | (catch 'system-error | |
266 | (lambda () | |
267 | (terminal-window-size port)) | |
268 | (lambda args | |
5cd25aad LC |
269 | ;; Accept EINVAL, which some old Linux versions might return. |
270 | (memv (system-error-errno args) | |
271 | (list ENOTTY EINVAL))))))) | |
29ff6d9f LC |
272 | |
273 | (test-assert "terminal-columns" | |
274 | (> (terminal-columns) 0)) | |
275 | ||
6d2b4391 LC |
276 | (test-assert "terminal-columns non-file port" |
277 | (> (terminal-columns (open-input-string "Join us now, share the software!")) | |
278 | 0)) | |
279 | ||
29fa45f4 | 280 | (test-end) |