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1 /*-
2  * Copyright (c) 2006 nCircle Network Security, Inc.
3  * Copyright (c) 2007 Robert N. M. Watson
4  * All rights reserved.
5  *
6  * This software was developed by Robert N. M. Watson for the TrustedBSD
7  * Project under contract to nCircle Network Security, Inc.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR, NCIRCLE NETWORK SECURITY,
22  * INC., OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
24  * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
25  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
26  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
27  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29  *
30  * $FreeBSD$
31  */
32
33 /*
34  * Privilege test framework.  Each test is encapsulated on a .c file
35  * exporting a function that implements the test.  Each test is run from its
36  * own child process, and they are run in sequence one at a time.
37  */
38
39 #include <sys/param.h>
40 #include <sys/jail.h>
41 #include <sys/stat.h>
42 #include <sys/wait.h>
43
44 #include <netinet/in.h>
45
46 #include <err.h>
47 #include <errno.h>
48 #include <stdio.h>
49 #include <stdlib.h>
50 #include <string.h>
51 #include <unistd.h>
52
53 #include "main.h"
54
55 /*
56  * If true, some test or preparatory step failed along the execution of this
57  * program.
58  *
59  * Intuitively, we would define a counter instead of a boolean.  However,
60  * we fork to run the subtests and keeping proper track of the number of
61  * failed tests would be tricky and not provide any real value.
62  */
63 static int something_failed = 0;
64
65 /*
66  * Registration table of privilege tests.  Each test registers a name, a test
67  * function, and a cleanup function to run after the test has completed,
68  * regardless of success/failure.
69  */
70 static struct test tests[] = {
71         { "priv_acct_enable", priv_acct_setup, priv_acct_enable,
72             priv_acct_cleanup },
73
74         { "priv_acct_disable", priv_acct_setup, priv_acct_disable,
75             priv_acct_cleanup },
76
77         { "priv_acct_rotate", priv_acct_setup, priv_acct_rotate,
78             priv_acct_cleanup },
79
80         { "priv_acct_noopdisable", priv_acct_setup, priv_acct_noopdisable,
81             priv_acct_cleanup },
82
83         { "priv_adjtime_set", priv_adjtime_setup, priv_adjtime_set,
84             priv_adjtime_cleanup },
85
86         { "priv_audit_submit", priv_audit_submit_setup, priv_audit_submit,
87             priv_audit_submit_cleanup },
88
89         { "priv_audit_control", priv_audit_control_setup, priv_audit_control,
90             priv_audit_control_cleanup },
91
92         { "priv_audit_getaudit", priv_audit_getaudit_setup,
93             priv_audit_getaudit, priv_audit_getaudit_cleanup },
94
95         { "priv_audit_getaudit_addr", priv_audit_getaudit_setup,
96             priv_audit_getaudit_addr, priv_audit_getaudit_cleanup },
97
98         { "priv_audit_setaudit", priv_audit_setaudit_setup,
99             priv_audit_setaudit, priv_audit_setaudit_cleanup },
100
101         { "priv_audit_setaudit_addr", priv_audit_setaudit_setup,
102             priv_audit_setaudit_addr, priv_audit_setaudit_cleanup },
103
104         { "priv_clock_settime", priv_clock_settime_setup, priv_clock_settime,
105             priv_clock_settime_cleanup },
106
107         { "priv_cred_setuid", priv_cred_setup, priv_cred_setuid,
108             priv_cred_cleanup },
109
110         { "priv_cred_seteuid", priv_cred_setup, priv_cred_seteuid,
111             priv_cred_cleanup },
112
113         { "priv_cred_setgid", priv_cred_setup, priv_cred_setgid,
114             priv_cred_cleanup },
115
116         { "priv_cred_setegid", priv_cred_setup, priv_cred_setegid,
117             priv_cred_cleanup },
118
119         { "priv_cred_setgroups", priv_cred_setup, priv_cred_setgroups,
120             priv_cred_cleanup },
121
122         { "priv_cred_setreuid", priv_cred_setup, priv_cred_setreuid,
123             priv_cred_cleanup },
124
125         { "priv_cred_setregid", priv_cred_setup, priv_cred_setregid,
126             priv_cred_cleanup },
127
128         { "priv_cred_setresuid", priv_cred_setup, priv_cred_setresuid,
129             priv_cred_cleanup },
130
131         { "priv_cred_setresgid", priv_cred_setup, priv_cred_setresgid,
132             priv_cred_cleanup },
133
134         { "priv_io", priv_io_setup, priv_io, priv_io_cleanup },
135
136         { "priv_kenv_set", priv_kenv_set_setup, priv_kenv_set,
137             priv_kenv_set_cleanup },
138
139         { "priv_kenv_unset", priv_kenv_unset_setup, priv_kenv_unset,
140             priv_kenv_unset_cleanup },
141
142         { "priv_msgbuf_privonly", priv_msgbuf_privonly_setup,
143             priv_msgbuf_privonly, priv_msgbuf_cleanup },
144
145         { "priv_msgbuf_unprivok", priv_msgbuf_unprivok_setup,
146            priv_msgbuf_unprivok, priv_msgbuf_cleanup },
147
148         { "priv_netinet_ipsec_pfkey", NULL, priv_netinet_ipsec_pfkey, NULL },
149
150         { "priv_netinet_ipsec_policy4_bypass",
151             priv_netinet_ipsec_policy4_bypass_setup,
152             priv_netinet_ipsec_policy4_bypass,
153             priv_netinet_ipsec_policy_bypass_cleanup },
154
155 #ifdef INET6
156         { "priv_netinet_ipsec_policy6_bypass",
157             priv_netinet_ipsec_policy6_bypass_setup,
158             priv_netinet_ipsec_policy6_bypass,
159             priv_netinet_ipsec_policy_bypass_cleanup },
160 #endif
161
162         { "priv_netinet_ipsec_policy4_entrust",
163             priv_netinet_ipsec_policy4_entrust_setup,
164             priv_netinet_ipsec_policy4_entrust,
165             priv_netinet_ipsec_policy_entrust_cleanup },
166
167 #ifdef INET6
168         { "priv_netinet_ipsec_policy6_entrust",
169             priv_netinet_ipsec_policy6_entrust_setup,
170             priv_netinet_ipsec_policy6_entrust,
171             priv_netinet_ipsec_policy_entrust_cleanup },
172 #endif
173
174         { "priv_netinet_raw", priv_netinet_raw_setup, priv_netinet_raw,
175             priv_netinet_raw_cleanup },
176
177         { "priv_proc_setlogin", priv_proc_setlogin_setup, priv_proc_setlogin,
178             priv_proc_setlogin_cleanup },
179
180         { "priv_proc_setrlimit_raisemax", priv_proc_setrlimit_setup,
181             priv_proc_setrlimit_raisemax, priv_proc_setrlimit_cleanup },
182
183         { "priv_proc_setrlimit_raisecur", priv_proc_setrlimit_setup,
184             priv_proc_setrlimit_raisecur, priv_proc_setrlimit_cleanup },
185
186         { "priv_proc_setrlimit_raisecur_nopriv", priv_proc_setrlimit_setup,
187             priv_proc_setrlimit_raisecur_nopriv,
188             priv_proc_setrlimit_cleanup },
189
190         { "priv_sched_rtprio_curproc_normal", priv_sched_rtprio_setup,
191             priv_sched_rtprio_curproc_normal, priv_sched_rtprio_cleanup },
192
193         { "priv_sched_rtprio_curproc_idle", priv_sched_rtprio_setup,
194             priv_sched_rtprio_curproc_idle, priv_sched_rtprio_cleanup },
195
196         { "priv_sched_rtprio_curproc_realtime", priv_sched_rtprio_setup,
197             priv_sched_rtprio_curproc_realtime, priv_sched_rtprio_cleanup },
198
199         { "priv_sched_rtprio_myproc_normal", priv_sched_rtprio_setup,
200             priv_sched_rtprio_myproc_normal, priv_sched_rtprio_cleanup },
201
202         { "priv_sched_rtprio_myproc_idle", priv_sched_rtprio_setup,
203             priv_sched_rtprio_myproc_idle, priv_sched_rtprio_cleanup },
204
205         { "priv_sched_rtprio_myproc_realtime", priv_sched_rtprio_setup,
206             priv_sched_rtprio_myproc_realtime, priv_sched_rtprio_cleanup },
207
208         { "priv_sched_rtprio_aproc_normal", priv_sched_rtprio_setup,
209             priv_sched_rtprio_aproc_normal, priv_sched_rtprio_cleanup },
210
211         { "priv_sched_rtprio_aproc_idle", priv_sched_rtprio_setup,
212             priv_sched_rtprio_aproc_idle, priv_sched_rtprio_cleanup },
213
214         { "priv_sched_rtprio_aproc_realtime", priv_sched_rtprio_setup,
215             priv_sched_rtprio_aproc_realtime, priv_sched_rtprio_cleanup },
216
217         { "priv_sched_setpriority_curproc", priv_sched_setpriority_setup,
218             priv_sched_setpriority_curproc, priv_sched_setpriority_cleanup },
219
220         { "priv_sched_setpriority_myproc", priv_sched_setpriority_setup,
221             priv_sched_setpriority_myproc, priv_sched_setpriority_cleanup },
222
223         { "priv_sched_setpriority_aproc", priv_sched_setpriority_setup,
224             priv_sched_setpriority_aproc, priv_sched_setpriority_cleanup },
225
226         { "priv_settimeofday", priv_settimeofday_setup, priv_settimeofday,
227             priv_settimeofday_cleanup },
228
229         { "priv_sysctl_write", priv_sysctl_write_setup, priv_sysctl_write,
230             priv_sysctl_write_cleanup },
231
232         { "priv_sysctl_writejail", priv_sysctl_write_setup,
233             priv_sysctl_writejail, priv_sysctl_write_cleanup },
234
235         { "priv_vfs_chflags_froot_uflags", priv_vfs_chflags_froot_setup,
236             priv_vfs_chflags_froot_uflags, priv_vfs_chflags_cleanup },
237
238         { "priv_vfs_chflags_froot_sflags", priv_vfs_chflags_froot_setup,
239             priv_vfs_chflags_froot_sflags, priv_vfs_chflags_cleanup },
240
241         { "priv_vfs_chflags_fowner_uflags", priv_vfs_chflags_fowner_setup,
242             priv_vfs_chflags_fowner_uflags, priv_vfs_chflags_cleanup },
243
244         { "priv_vfs_chflags_fowner_sflags", priv_vfs_chflags_fowner_setup,
245             priv_vfs_chflags_fowner_sflags, priv_vfs_chflags_cleanup },
246
247         { "priv_vfs_chflags_fother_uflags", priv_vfs_chflags_fother_setup,
248             priv_vfs_chflags_fother_uflags, priv_vfs_chflags_cleanup },
249
250         { "priv_vfs_chflags_fother_sflags", priv_vfs_chflags_fother_setup,
251             priv_vfs_chflags_fother_sflags, priv_vfs_chflags_cleanup },
252
253         { "priv_vfs_chmod_froot", priv_vfs_chmod_froot_setup,
254              priv_vfs_chmod_froot, priv_vfs_chmod_cleanup },
255
256         { "priv_vfs_chmod_fowner", priv_vfs_chmod_fowner_setup,
257              priv_vfs_chmod_fowner, priv_vfs_chmod_cleanup },
258
259         { "priv_vfs_chmod_fother", priv_vfs_chmod_fother_setup,
260              priv_vfs_chmod_fother, priv_vfs_chmod_cleanup },
261
262         { "priv_vfs_chown_uid", priv_vfs_chown_uid_setup, priv_vfs_chown_uid,
263             priv_vfs_chown_cleanup },
264
265         { "priv_vfs_chown_mygid", priv_vfs_chown_mygid_setup,
266             priv_vfs_chown_mygid, priv_vfs_chown_cleanup },
267
268         { "priv_vfs_chown_othergid", priv_vfs_chown_othergid_setup,
269             priv_vfs_chown_othergid, priv_vfs_chown_cleanup },
270
271         { "priv_vfs_chroot", priv_vfs_chroot_setup, priv_vfs_chroot,
272             priv_vfs_chroot_cleanup },
273
274         { "priv_vfs_clearsugid_chgrp", priv_vfs_clearsugid_setup,
275             priv_vfs_clearsugid_chgrp, priv_vfs_clearsugid_cleanup },
276
277         { "priv_vfs_clearsugid_extattr", priv_vfs_clearsugid_setup,
278             priv_vfs_clearsugid_extattr, priv_vfs_clearsugid_cleanup },
279
280         { "priv_vfs_clearsugid_write", priv_vfs_clearsugid_setup,
281             priv_vfs_clearsugid_write, priv_vfs_clearsugid_cleanup },
282
283         { "priv_vfs_extattr_system", priv_vfs_extattr_system_setup,
284             priv_vfs_extattr_system, priv_vfs_extattr_system_cleanup },
285
286         { "priv_vfs_fhopen", priv_vfs_fhopen_setup, priv_vfs_fhopen,
287             priv_vfs_fhopen_cleanup },
288
289         { "priv_vfs_fhstat", priv_vfs_fhstat_setup, priv_vfs_fhstat,
290             priv_vfs_fhstat_cleanup },
291
292         { "priv_vfs_fhstatfs", priv_vfs_fhstatfs_setup, priv_vfs_fhstatfs,
293             priv_vfs_fhstatfs_cleanup },
294
295         { "priv_vfs_generation", priv_vfs_generation_setup,
296             priv_vfs_generation, priv_vfs_generation_cleanup },
297
298         { "priv_vfs_getfh", priv_vfs_getfh_setup, priv_vfs_getfh,
299             priv_vfs_getfh_cleanup },
300
301         { "priv_vfs_readwrite_fowner", priv_vfs_readwrite_fowner_setup,
302             priv_vfs_readwrite_fowner, priv_vfs_readwrite_cleanup },
303
304         { "priv_vfs_readwrite_fgroup", priv_vfs_readwrite_fgroup_setup,
305             priv_vfs_readwrite_fgroup, priv_vfs_readwrite_cleanup },
306
307         { "priv_vfs_readwrite_fother", priv_vfs_readwrite_fother_setup,
308             priv_vfs_readwrite_fother, priv_vfs_readwrite_cleanup },
309
310         { "priv_vfs_setgid_fowner", priv_vfs_setgid_fowner_setup,
311             priv_vfs_setgid_fowner, priv_vfs_setgid_cleanup },
312
313         { "priv_vfs_setgid_fother", priv_vfs_setgid_fother_setup,
314             priv_vfs_setgid_fother, priv_vfs_setgid_cleanup },
315
316         { "priv_vfs_stickyfile_dir_fowner",
317             priv_vfs_stickyfile_dir_fowner_setup,
318             priv_vfs_stickyfile_dir_fowner,
319             priv_vfs_stickyfile_dir_cleanup },
320
321         { "priv_vfs_stickyfile_dir_fother",
322             priv_vfs_stickyfile_dir_fother_setup,
323             priv_vfs_stickyfile_dir_fother,
324             priv_vfs_stickyfile_dir_cleanup },
325
326         { "priv_vfs_stickyfile_file_fowner",
327             priv_vfs_stickyfile_file_fowner_setup,
328             priv_vfs_stickyfile_file_fowner,
329             priv_vfs_stickyfile_file_cleanup },
330
331         { "priv_vfs_stickyfile_file_fother",
332             priv_vfs_stickyfile_file_fother_setup,
333             priv_vfs_stickyfile_file_fother,
334             priv_vfs_stickyfile_file_cleanup },
335
336         { "priv_vfs_utimes_froot", priv_vfs_utimes_froot_setup,
337             priv_vfs_utimes_froot, priv_vfs_utimes_cleanup },
338
339         { "priv_vfs_utimes_froot_null", priv_vfs_utimes_froot_setup,
340             priv_vfs_utimes_froot_null, priv_vfs_utimes_cleanup },
341
342         { "priv_vfs_utimes_fowner", priv_vfs_utimes_fowner_setup,
343             priv_vfs_utimes_fowner, priv_vfs_utimes_cleanup },
344
345         { "priv_vfs_utimes_fowner_null", priv_vfs_utimes_fowner_setup,
346             priv_vfs_utimes_fowner_null, priv_vfs_utimes_cleanup },
347
348         { "priv_vfs_utimes_fother", priv_vfs_utimes_fother_setup,
349             priv_vfs_utimes_fother, priv_vfs_utimes_cleanup },
350
351         { "priv_vfs_utimes_fother_null", priv_vfs_utimes_fother_setup,
352             priv_vfs_utimes_fother_null, priv_vfs_utimes_cleanup },
353
354         { "priv_vm_madv_protect", priv_vm_madv_protect_setup,
355             priv_vm_madv_protect, priv_vm_madv_protect_cleanup },
356
357         { "priv_vm_mlock", priv_vm_mlock_setup, priv_vm_mlock,
358             priv_vm_mlock_cleanup },
359
360         { "priv_vm_munlock", priv_vm_munlock_setup, priv_vm_munlock,
361             priv_vm_munlock_cleanup },
362
363 };
364 static int tests_count = sizeof(tests) / sizeof(struct test);
365
366 void
367 expect(const char *test, int error, int expected_error, int expected_errno)
368 {
369
370         if (error == 0) {
371                 if (expected_error != 0) {
372                         something_failed = 1;
373                         warnx("%s: returned 0", test);
374                 }
375         } else {
376                 if (expected_error == 0) {
377                         something_failed = 1;
378                         warn("%s: returned (%d, %d)", test, error, errno);
379                 } else if (expected_errno != errno) {
380                         something_failed = 1;
381                         warn("%s: returned (%d, %d)", test, error, errno);
382                 }
383         }
384 }
385
386 void
387 setup_dir(const char *test, char *dpathp, uid_t uid, gid_t gid, mode_t mode)
388 {
389
390         strcpy(dpathp, "/tmp/priv.XXXXXXXXXXX");
391         if (mkdtemp(dpathp) == NULL)
392                 err(-1, "test %s: mkdtemp", test);
393
394         if (chown(dpathp, uid, gid) < 0)
395                 err(-1, "test %s: chown(%s, %d, %d)", test, dpathp, uid,
396                     gid);
397
398         if (chmod(dpathp, mode) < 0)
399                 err(-1, "test %s: chmod(%s, 0%o)", test, dpathp, mode);
400 }
401
402 void
403 setup_file(const char *test, char *fpathp, uid_t uid, gid_t gid, mode_t mode)
404 {
405         int fd;
406
407         strcpy(fpathp, "/tmp/priv.XXXXXXXXXXX");
408         fd = mkstemp(fpathp);
409         if (fd < 0)
410                 err(-1, "test %s: mkstemp", test);
411
412         if (fchown(fd, uid, gid) < 0)
413                 err(-1, "test %s: fchown(%s, %d, %d)", test, fpathp, uid,
414                     gid);
415
416         if (fchmod(fd, mode) < 0)
417                 err(-1, "test %s: chmod(%s, 0%o)", test, fpathp, mode);
418
419         close(fd);
420 }
421
422 /*
423  * Irrevocably set credentials to specific uid and gid.
424  */
425 static void
426 set_creds(const char *test, uid_t uid, gid_t gid)
427 {
428         gid_t gids[1] = { gid };
429
430         if (setgid(gid) < 0)
431                 err(-1, "test %s: setegid(%d)", test, gid);
432         if (setgroups(sizeof(gids)/sizeof(gid_t), gids) < 0)
433                 err(-1, "test %s: setgroups(%d)", test, gid);
434         if (setuid(uid) < 0)
435                 err(-1, "test %s: seteuid(%d)", test, uid);
436 }
437
438 static void
439 enter_jail(const char *test)
440 {
441         struct jail j;
442         struct in_addr ia4;
443 #ifdef INET6
444         struct in6_addr ia6 = IN6ADDR_LOOPBACK_INIT;
445 #endif
446
447         bzero(&j, sizeof(j));
448         j.version = JAIL_API_VERSION;
449         j.path = "/";
450         j.hostname = "test";
451         j.jailname = "regressions/priv";
452         ia4.s_addr = htonl(INADDR_LOOPBACK);
453         j.ip4s = 1;
454         j.ip4 = &ia4;
455 #ifdef INET6
456         j.ip6s = 1;
457         j.ip6 = &ia6;
458 #endif
459         if (jail(&j) < 0)
460                 err(-1, "test %s: jail", test);
461 }
462
463 static void
464 run_child(struct test *test, int asroot, int injail)
465 {
466
467         setprogname(test->t_name);
468         if (injail)
469                 enter_jail(test->t_name);
470         if (!asroot)
471                 set_creds(test->t_name, UID_OWNER, GID_OWNER);
472         test->t_test_func(asroot, injail, test);
473 }
474
475 /*
476  * Run a test in a particular credential context -- always call the setup and
477  * cleanup routines; if setup succeeds, also run the test.  Test cleanup must
478  * handle cases where the setup has failed, so may need to maintain their own
479  * state in order to know what needs cleaning up (such as whether temporary
480  * files were created).
481  */
482 static void
483 run(struct test *test, int asroot, int injail)
484 {
485         pid_t childpid, pid;
486
487         if (test->t_setup_func != NULL) {
488                 if ((test->t_setup_func)(asroot, injail, test) != 0) {
489                         warnx("run(%s, %d, %d) setup failed", test->t_name,
490                             asroot, injail);
491                         goto cleanup;
492                 }
493         }
494         fflush(stdout);
495         fflush(stderr);
496         childpid = fork();
497         if (childpid == -1) {
498                 warn("run(%s, %d, %d) fork failed", test->t_name, asroot,
499                     injail);
500                 goto cleanup;
501         }
502         if (childpid == 0) {
503                 run_child(test, asroot, injail);
504                 fflush(stdout);
505                 fflush(stderr);
506                 exit(something_failed ? EXIT_FAILURE : EXIT_SUCCESS);
507         } else {
508                 while (1) {
509                         int status;
510                         pid = waitpid(childpid, &status, 0);
511                         if (pid == -1) {
512                                 something_failed = 1;
513                                 warn("test: waitpid %s", test->t_name);
514                         }
515                         if (pid == childpid) {
516                                 if (WIFEXITED(status) &&
517                                     WEXITSTATUS(status) == EXIT_SUCCESS) {
518                                         /* All good in the subprocess! */
519                                 } else {
520                                         something_failed = 1;
521                                 }
522                                 break;
523                         }
524                 }
525         }
526         fflush(stdout);
527         fflush(stderr);
528 cleanup:
529         if (test->t_cleanup_func != NULL)
530                 test->t_cleanup_func(asroot, injail, test);
531 }
532
533 int
534 main(int argc, char *argv[])
535 {
536         int i;
537
538         /*
539          * This test suite will need to become quite a bit more enlightened
540          * if the notion of privilege is truly separated from root, as tests
541          * make assumptions about when privilege will be present.  In
542          * particular, VFS-related tests need to manage uids in order to
543          * force the use of privilege, and will likely need checking.
544          */
545         if (getuid() != 0 && geteuid() != 0)
546                 errx(-1, "must be run as root");
547
548         /*
549          * Run each test four times, varying whether the process is running
550          * as root and in jail in order to test all possible combinations.
551          */
552         for (i = 0; i < tests_count; i++) {
553                 run(&tests[i], 0, 0);
554                 run(&tests[i], 0, 1);
555                 run(&tests[i], 1, 0);
556                 run(&tests[i], 1, 1);
557         }
558         return (something_failed ? EXIT_FAILURE : EXIT_SUCCESS);
559 }