tools/regression/priv/main.c

   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  * Registration table of privilege tests.  Each test registers a name, a test
  57  * function, and a cleanup function to run after the test has completed,
  58  * regardless of success/failure.
  59  */
  60 static struct test tests[] = {
  61         { "priv_acct_enable", priv_acct_setup, priv_acct_enable,
  62             priv_acct_cleanup },
  63
  64         { "priv_acct_disable", priv_acct_setup, priv_acct_disable,
  65             priv_acct_cleanup },
  66
  67         { "priv_acct_rotate", priv_acct_setup, priv_acct_rotate,
  68             priv_acct_cleanup },
  69
  70         { "priv_acct_noopdisable", priv_acct_setup, priv_acct_noopdisable,
  71             priv_acct_cleanup },
  72
  73         { "priv_adjtime_set", priv_adjtime_setup, priv_adjtime_set,
  74             priv_adjtime_cleanup },
  75
  76         { "priv_audit_submit", priv_audit_submit_setup, priv_audit_submit,
  77             priv_audit_submit_cleanup },
  78
  79         { "priv_audit_control", priv_audit_control_setup, priv_audit_control,
  80             priv_audit_control_cleanup },
  81
  82         { "priv_audit_getaudit", priv_audit_getaudit_setup,
  83             priv_audit_getaudit, priv_audit_getaudit_cleanup },
  84
  85         { "priv_audit_getaudit_addr", priv_audit_getaudit_setup,
  86             priv_audit_getaudit_addr, priv_audit_getaudit_cleanup },
  87
  88         { "priv_audit_setaudit", priv_audit_setaudit_setup,
  89             priv_audit_setaudit, priv_audit_setaudit_cleanup },
  90
  91         { "priv_audit_setaudit_addr", priv_audit_setaudit_setup,
  92             priv_audit_setaudit_addr, priv_audit_setaudit_cleanup },
  93
  94         { "priv_clock_settime", priv_clock_settime_setup, priv_clock_settime,
  95             priv_clock_settime_cleanup },
  96
  97         { "priv_cred_setuid", priv_cred_setup, priv_cred_setuid,
  98             priv_cred_cleanup },
  99
 100         { "priv_cred_seteuid", priv_cred_setup, priv_cred_seteuid,
 101             priv_cred_cleanup },
 102
 103         { "priv_cred_setgid", priv_cred_setup, priv_cred_setgid,
 104             priv_cred_cleanup },
 105
 106         { "priv_cred_setegid", priv_cred_setup, priv_cred_setegid,
 107             priv_cred_cleanup },
 108
 109         { "priv_cred_setgroups", priv_cred_setup, priv_cred_setgroups,
 110             priv_cred_cleanup },
 111
 112         { "priv_cred_setreuid", priv_cred_setup, priv_cred_setreuid,
 113             priv_cred_cleanup },
 114
 115         { "priv_cred_setregid", priv_cred_setup, priv_cred_setregid,
 116             priv_cred_cleanup },
 117
 118         { "priv_cred_setresuid", priv_cred_setup, priv_cred_setresuid,
 119             priv_cred_cleanup },
 120
 121         { "priv_cred_setresgid", priv_cred_setup, priv_cred_setresgid,
 122             priv_cred_cleanup },
 123
 124         { "priv_io", priv_io_setup, priv_io, priv_io_cleanup },
 125
 126         { "priv_kenv_set", priv_kenv_set_setup, priv_kenv_set,
 127             priv_kenv_set_cleanup },
 128
 129         { "priv_kenv_unset", priv_kenv_unset_setup, priv_kenv_unset,
 130             priv_kenv_unset_cleanup },
 131
 132         { "priv_msgbuf_privonly", priv_msgbuf_privonly_setup,
 133             priv_msgbuf_privonly, priv_msgbuf_cleanup },
 134
 135         { "priv_msgbuf_unprivok", priv_msgbuf_unprivok_setup,
 136            priv_msgbuf_unprivok, priv_msgbuf_cleanup },
 137
 138         { "priv_netinet_ipsec_pfkey", NULL, priv_netinet_ipsec_pfkey, NULL },
 139
 140         { "priv_netinet_ipsec_policy4_bypass",
 141             priv_netinet_ipsec_policy4_bypass_setup,
 142             priv_netinet_ipsec_policy4_bypass,
 143             priv_netinet_ipsec_policy_bypass_cleanup },
 144
 145         { "priv_netinet_ipsec_policy6_bypass",
 146             priv_netinet_ipsec_policy6_bypass_setup,
 147             priv_netinet_ipsec_policy6_bypass,
 148             priv_netinet_ipsec_policy_bypass_cleanup },
 149
 150         { "priv_netinet_ipsec_policy4_entrust",
 151             priv_netinet_ipsec_policy4_entrust_setup,
 152             priv_netinet_ipsec_policy4_entrust,
 153             priv_netinet_ipsec_policy_entrust_cleanup },
 154
 155         { "priv_netinet_ipsec_policy6_entrust",
 156             priv_netinet_ipsec_policy6_entrust_setup,
 157             priv_netinet_ipsec_policy6_entrust,
 158             priv_netinet_ipsec_policy_entrust_cleanup },
 159
 160         { "priv_netinet_raw", priv_netinet_raw_setup, priv_netinet_raw,
 161             priv_netinet_raw_cleanup },
 162
 163         { "priv_proc_setlogin", priv_proc_setlogin_setup, priv_proc_setlogin,
 164             priv_proc_setlogin_cleanup },
 165
 166         { "priv_proc_setrlimit_raisemax", priv_proc_setrlimit_setup,
 167             priv_proc_setrlimit_raisemax, priv_proc_setrlimit_cleanup },
 168
 169         { "priv_proc_setrlimit_raisecur", priv_proc_setrlimit_setup,
 170             priv_proc_setrlimit_raisecur, priv_proc_setrlimit_cleanup },
 171
 172         { "priv_proc_setrlimit_raisecur_nopriv", priv_proc_setrlimit_setup,
 173             priv_proc_setrlimit_raisecur_nopriv,
 174             priv_proc_setrlimit_cleanup },
 175
 176         { "priv_sched_rtprio_curproc_normal", priv_sched_rtprio_setup,
 177             priv_sched_rtprio_curproc_normal, priv_sched_rtprio_cleanup },
 178
 179         { "priv_sched_rtprio_curproc_idle", priv_sched_rtprio_setup,
 180             priv_sched_rtprio_curproc_idle, priv_sched_rtprio_cleanup },
 181
 182         { "priv_sched_rtprio_curproc_realtime", priv_sched_rtprio_setup,
 183             priv_sched_rtprio_curproc_realtime, priv_sched_rtprio_cleanup },
 184
 185         { "priv_sched_rtprio_myproc_normal", priv_sched_rtprio_setup,
 186             priv_sched_rtprio_myproc_normal, priv_sched_rtprio_cleanup },
 187
 188         { "priv_sched_rtprio_myproc_idle", priv_sched_rtprio_setup,
 189             priv_sched_rtprio_myproc_idle, priv_sched_rtprio_cleanup },
 190
 191         { "priv_sched_rtprio_myproc_realtime", priv_sched_rtprio_setup,
 192             priv_sched_rtprio_myproc_realtime, priv_sched_rtprio_cleanup },
 193
 194         { "priv_sched_rtprio_aproc_normal", priv_sched_rtprio_setup,
 195             priv_sched_rtprio_aproc_normal, priv_sched_rtprio_cleanup },
 196
 197         { "priv_sched_rtprio_aproc_idle", priv_sched_rtprio_setup,
 198             priv_sched_rtprio_aproc_idle, priv_sched_rtprio_cleanup },
 199
 200         { "priv_sched_rtprio_aproc_realtime", priv_sched_rtprio_setup,
 201             priv_sched_rtprio_aproc_realtime, priv_sched_rtprio_cleanup },
 202
 203         { "priv_sched_setpriority_curproc", priv_sched_setpriority_setup,
 204             priv_sched_setpriority_curproc, priv_sched_setpriority_cleanup },
 205
 206         { "priv_sched_setpriority_myproc", priv_sched_setpriority_setup,
 207             priv_sched_setpriority_myproc, priv_sched_setpriority_cleanup },
 208
 209         { "priv_sched_setpriority_aproc", priv_sched_setpriority_setup,
 210             priv_sched_setpriority_aproc, priv_sched_setpriority_cleanup },
 211
 212         { "priv_settimeofday", priv_settimeofday_setup, priv_settimeofday,
 213             priv_settimeofday_cleanup },
 214
 215         { "priv_sysctl_write", priv_sysctl_write_setup, priv_sysctl_write,
 216             priv_sysctl_write_cleanup },
 217
 218         { "priv_sysctl_writejail", priv_sysctl_write_setup,
 219             priv_sysctl_writejail, priv_sysctl_write_cleanup },
 220
 221         { "priv_vfs_chflags_froot_uflags", priv_vfs_chflags_froot_setup,
 222             priv_vfs_chflags_froot_uflags, priv_vfs_chflags_cleanup },
 223
 224         { "priv_vfs_chflags_froot_sflags", priv_vfs_chflags_froot_setup,
 225             priv_vfs_chflags_froot_sflags, priv_vfs_chflags_cleanup },
 226
 227         { "priv_vfs_chflags_fowner_uflags", priv_vfs_chflags_fowner_setup,
 228             priv_vfs_chflags_fowner_uflags, priv_vfs_chflags_cleanup },
 229
 230         { "priv_vfs_chflags_fowner_sflags", priv_vfs_chflags_fowner_setup,
 231             priv_vfs_chflags_fowner_sflags, priv_vfs_chflags_cleanup },
 232
 233         { "priv_vfs_chflags_fother_uflags", priv_vfs_chflags_fother_setup,
 234             priv_vfs_chflags_fother_uflags, priv_vfs_chflags_cleanup },
 235
 236         { "priv_vfs_chflags_fother_sflags", priv_vfs_chflags_fother_setup,
 237             priv_vfs_chflags_fother_sflags, priv_vfs_chflags_cleanup },
 238
 239         { "priv_vfs_chmod_froot", priv_vfs_chmod_froot_setup,
 240              priv_vfs_chmod_froot, priv_vfs_chmod_cleanup },
 241
 242         { "priv_vfs_chmod_fowner", priv_vfs_chmod_fowner_setup,
 243              priv_vfs_chmod_fowner, priv_vfs_chmod_cleanup },
 244
 245         { "priv_vfs_chmod_fother", priv_vfs_chmod_fother_setup,
 246              priv_vfs_chmod_fother, priv_vfs_chmod_cleanup },
 247
 248         { "priv_vfs_chown_uid", priv_vfs_chown_uid_setup, priv_vfs_chown_uid,
 249             priv_vfs_chown_cleanup },
 250
 251         { "priv_vfs_chown_mygid", priv_vfs_chown_mygid_setup,
 252             priv_vfs_chown_mygid, priv_vfs_chown_cleanup },
 253
 254         { "priv_vfs_chown_othergid", priv_vfs_chown_othergid_setup,
 255             priv_vfs_chown_othergid, priv_vfs_chown_cleanup },
 256
 257         { "priv_vfs_chroot", priv_vfs_chroot_setup, priv_vfs_chroot,
 258             priv_vfs_chroot_cleanup },
 259
 260         { "priv_vfs_clearsugid_chgrp", priv_vfs_clearsugid_setup,
 261             priv_vfs_clearsugid_chgrp, priv_vfs_clearsugid_cleanup },
 262
 263         { "priv_vfs_clearsugid_extattr", priv_vfs_clearsugid_setup,
 264             priv_vfs_clearsugid_extattr, priv_vfs_clearsugid_cleanup },
 265
 266         { "priv_vfs_clearsugid_write", priv_vfs_clearsugid_setup,
 267             priv_vfs_clearsugid_write, priv_vfs_clearsugid_cleanup },
 268
 269         { "priv_vfs_extattr_system", priv_vfs_extattr_system_setup,
 270             priv_vfs_extattr_system, priv_vfs_extattr_system_cleanup },
 271
 272         { "priv_vfs_fhopen", priv_vfs_fhopen_setup, priv_vfs_fhopen,
 273             priv_vfs_fhopen_cleanup },
 274
 275         { "priv_vfs_fhstat", priv_vfs_fhstat_setup, priv_vfs_fhstat,
 276             priv_vfs_fhstat_cleanup },
 277
 278         { "priv_vfs_fhstatfs", priv_vfs_fhstatfs_setup, priv_vfs_fhstatfs,
 279             priv_vfs_fhstatfs_cleanup },
 280
 281         { "priv_vfs_generation", priv_vfs_generation_setup,
 282             priv_vfs_generation, priv_vfs_generation_cleanup },
 283
 284         { "priv_vfs_getfh", priv_vfs_getfh_setup, priv_vfs_getfh,
 285             priv_vfs_getfh_cleanup },
 286
 287         { "priv_vfs_readwrite_fowner", priv_vfs_readwrite_fowner_setup,
 288             priv_vfs_readwrite_fowner, priv_vfs_readwrite_cleanup },
 289
 290         { "priv_vfs_readwrite_fgroup", priv_vfs_readwrite_fgroup_setup,
 291             priv_vfs_readwrite_fgroup, priv_vfs_readwrite_cleanup },
 292
 293         { "priv_vfs_readwrite_fother", priv_vfs_readwrite_fother_setup,
 294             priv_vfs_readwrite_fother, priv_vfs_readwrite_cleanup },
 295
 296         { "priv_vfs_setgid_fowner", priv_vfs_setgid_fowner_setup,
 297             priv_vfs_setgid_fowner, priv_vfs_setgid_cleanup },
 298
 299         { "priv_vfs_setgid_fother", priv_vfs_setgid_fother_setup,
 300             priv_vfs_setgid_fother, priv_vfs_setgid_cleanup },
 301
 302         { "priv_vfs_stickyfile_dir_fowner",
 303             priv_vfs_stickyfile_dir_fowner_setup,
 304             priv_vfs_stickyfile_dir_fowner,
 305             priv_vfs_stickyfile_dir_cleanup },
 306
 307         { "priv_vfs_stickyfile_dir_fother",
 308             priv_vfs_stickyfile_dir_fother_setup,
 309             priv_vfs_stickyfile_dir_fother,
 310             priv_vfs_stickyfile_dir_cleanup },
 311
 312         { "priv_vfs_stickyfile_file_fowner",
 313             priv_vfs_stickyfile_file_fowner_setup,
 314             priv_vfs_stickyfile_file_fowner,
 315             priv_vfs_stickyfile_file_cleanup },
 316
 317         { "priv_vfs_stickyfile_file_fother",
 318             priv_vfs_stickyfile_file_fother_setup,
 319             priv_vfs_stickyfile_file_fother,
 320             priv_vfs_stickyfile_file_cleanup },
 321
 322         { "priv_vfs_utimes_froot", priv_vfs_utimes_froot_setup,
 323             priv_vfs_utimes_froot, priv_vfs_utimes_cleanup },
 324
 325         { "priv_vfs_utimes_froot_null", priv_vfs_utimes_froot_setup,
 326             priv_vfs_utimes_froot_null, priv_vfs_utimes_cleanup },
 327
 328         { "priv_vfs_utimes_fowner", priv_vfs_utimes_fowner_setup,
 329             priv_vfs_utimes_fowner, priv_vfs_utimes_cleanup },
 330
 331         { "priv_vfs_utimes_fowner_null", priv_vfs_utimes_fowner_setup,
 332             priv_vfs_utimes_fowner_null, priv_vfs_utimes_cleanup },
 333
 334         { "priv_vfs_utimes_fother", priv_vfs_utimes_fother_setup,
 335             priv_vfs_utimes_fother, priv_vfs_utimes_cleanup },
 336
 337         { "priv_vfs_utimes_fother_null", priv_vfs_utimes_fother_setup,
 338             priv_vfs_utimes_fother_null, priv_vfs_utimes_cleanup },
 339
 340         { "priv_vm_madv_protect", priv_vm_madv_protect_setup,
 341             priv_vm_madv_protect, priv_vm_madv_protect_cleanup },
 342
 343         { "priv_vm_mlock", priv_vm_mlock_setup, priv_vm_mlock,
 344             priv_vm_mlock_cleanup },
 345
 346         { "priv_vm_munlock", priv_vm_munlock_setup, priv_vm_munlock,
 347             priv_vm_munlock_cleanup },
 348
 349 };
 350 static int tests_count = sizeof(tests) / sizeof(struct test);
 351
 352 void
 353 expect(const char *test, int error, int expected_error, int expected_errno)
 354 {
 355
 356         if (error == 0) {
 357                 if (expected_error != 0)
 358                         warnx("%s: returned 0", test);
 359         } else {
 360                 if (expected_error == 0)
 361                         warn("%s: returned (%d, %d)", test, error, errno);
 362                 else if (expected_errno != errno)
 363                         warn("%s: returned (%d, %d)", test, error, errno);
 364         }
 365 }
 366
 367 void
 368 setup_dir(const char *test, char *dpathp, uid_t uid, gid_t gid, mode_t mode)
 369 {
 370
 371         strcpy(dpathp, "/tmp/priv.XXXXXXXXXXX");
 372         if (mkdtemp(dpathp) == NULL)
 373                 err(-1, "test %s: mkdtemp", test);
 374
 375         if (chown(dpathp, uid, gid) < 0)
 376                 err(-1, "test %s: chown(%s, %d, %d)", test, dpathp, uid,
 377                     gid);
 378
 379         if (chmod(dpathp, mode) < 0)
 380                 err(-1, "test %s: chmod(%s, 0%o)", test, dpathp, mode);
 381 }
 382
 383 void
 384 setup_file(const char *test, char *fpathp, uid_t uid, gid_t gid, mode_t mode)
 385 {
 386         int fd;
 387
 388         strcpy(fpathp, "/tmp/priv.XXXXXXXXXXX");
 389         fd = mkstemp(fpathp);
 390         if (fd < 0)
 391                 err(-1, "test %s: mkstemp", test);
 392
 393         if (fchown(fd, uid, gid) < 0)
 394                 err(-1, "test %s: fchown(%s, %d, %d)", test, fpathp, uid,
 395                     gid);
 396
 397         if (fchmod(fd, mode) < 0)
 398                 err(-1, "test %s: chmod(%s, 0%o)", test, fpathp, mode);
 399
 400         close(fd);
 401 }
 402
 403 /*
 404  * Irrevocably set credentials to specific uid and gid.
 405  */
 406 static void
 407 set_creds(const char *test, uid_t uid, gid_t gid)
 408 {
 409         gid_t gids[1] = { gid };
 410
 411         if (setgid(gid) < 0)
 412                 err(-1, "test %s: setegid(%d)", test, gid);
 413         if (setgroups(sizeof(gids)/sizeof(gid_t), gids) < 0)
 414                 err(-1, "test %s: setgroups(%d)", test, gid);
 415         if (setuid(uid) < 0)
 416                 err(-1, "test %s: seteuid(%d)", test, uid);
 417 }
 418
 419 static void
 420 enter_jail(const char *test)
 421 {
 422         struct jail j;
 423
 424         bzero(&j, sizeof(j));
 425         j.version = 0;
 426         j.path = "/";
 427         j.hostname = "test";
 428         j.ip_number = htonl(INADDR_LOOPBACK);
 429         if (jail(&j) < 0)
 430                 err(-1, "test %s: jail", test);
 431 }
 432
 433 static void
 434 run_child(struct test *test, int asroot, int injail)
 435 {
 436
 437         setprogname(test->t_name);
 438         if (injail)
 439                 enter_jail(test->t_name);
 440         if (!asroot)
 441                 set_creds(test->t_name, UID_OWNER, GID_OWNER);
 442         test->t_test_func(asroot, injail, test);
 443 }
 444
 445 /*
 446  * Run a test in a particular credential context -- always call the setup and
 447  * cleanup routines; if setup succeeds, also run the test.  Test cleanup must
 448  * handle cases where the setup has failed, so may need to maintain their own
 449  * state in order to know what needs cleaning up (such as whether temporary
 450  * files were created).
 451  */
 452 static void
 453 run(struct test *test, int asroot, int injail)
 454 {
 455         pid_t childpid, pid;
 456
 457         if (test->t_setup_func != NULL) {
 458                 if ((test->t_setup_func)(asroot, injail, test) != 0) {
 459                         warnx("run(%s, %d, %d) setup failed", test->t_name,
 460                             asroot, injail);
 461                         goto cleanup;
 462                 }
 463         }
 464         fflush(stdout);
 465         fflush(stderr);
 466         childpid = fork();
 467         if (childpid == -1) {
 468                 warn("run(%s, %d, %d) fork failed", test->t_name, asroot,
 469                     injail);
 470                 goto cleanup;
 471         }
 472         if (childpid == 0) {
 473                 run_child(test, asroot, injail);
 474                 fflush(stdout);
 475                 fflush(stderr);
 476                 exit(0);
 477         } else {
 478                 while (1) {
 479                         pid = waitpid(childpid, NULL, 0);
 480                         if (pid == -1)
 481                                 warn("test: waitpid %s", test->t_name);
 482                         if (pid == childpid)
 483                                 break;
 484                 }
 485         }
 486         fflush(stdout);
 487         fflush(stderr);
 488 cleanup:
 489         if (test->t_cleanup_func != NULL)
 490                 test->t_cleanup_func(asroot, injail, test);
 491 }
 492
 493 int
 494 main(int argc, char *argv[])
 495 {
 496         int i;
 497
 498         /*
 499          * This test suite will need to become quite a bit more enlightened
 500          * if the notion of privilege is truly separated from root, as tests
 501          * make assumptions about when privilege will be present.  In
 502          * particular, VFS-related tests need to manage uids in order to
 503          * force the use of privilege, and will likely need checking.
 504          */
 505         if (getuid() != 0 && geteuid() != 0)
 506                 errx(-1, "priv: must be run as root");
 507
 508         /*
 509          * Run each test four times, varying whether the process is running
 510          * as root and in jail in order to test all possible combinations.
 511          */
 512         for (i = 0; i < tests_count; i++) {
 513                 run(&tests[i], 0, 0);
 514                 run(&tests[i], 0, 1);
 515                 run(&tests[i], 1, 0);
 516                 run(&tests[i], 1, 1);
 517         }
 518         return (0);
 519 }