src/test/test-execute.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3   This file is part of systemd.
   4
   5   Copyright 2014 Ronny Chevalier
   6 ***/
   7
   8 #include <grp.h>
   9 #include <pwd.h>
  10 #include <stdio.h>
  11 #include <sys/prctl.h>
  12 #include <sys/types.h>
  13
  14 #include "capability-util.h"
  15 #include "cpu-set-util.h"
  16 #include "errno-list.h"
  17 #include "fileio.h"
  18 #include "fs-util.h"
  19 #include "macro.h"
  20 #include "manager.h"
  21 #include "mkdir.h"
  22 #include "path-util.h"
  23 #include "rm-rf.h"
  24 #if HAVE_SECCOMP
  25 #include "seccomp-util.h"
  26 #endif
  27 #include "stat-util.h"
  28 #include "test-helper.h"
  29 #include "tests.h"
  30 #include "unit.h"
  31 #include "user-util.h"
  32 #include "util.h"
  33 #include "virt.h"
  34
  35 typedef void (*test_function_t)(Manager *m);
  36
  37 static void check(Manager *m, Unit *unit, int status_expected, int code_expected) {
  38         Service *service = NULL;
  39         usec_t ts;
  40         usec_t timeout = 2 * USEC_PER_MINUTE;
  41
  42         assert_se(m);
  43         assert_se(unit);
  44
  45         service = SERVICE(unit);
  46         printf("%s\n", unit->id);
  47         exec_context_dump(&service->exec_context, stdout, "\t");
  48         ts = now(CLOCK_MONOTONIC);
  49         while (!IN_SET(service->state, SERVICE_DEAD, SERVICE_FAILED)) {
  50                 int r;
  51                 usec_t n;
  52
  53                 r = sd_event_run(m->event, 100 * USEC_PER_MSEC);
  54                 assert_se(r >= 0);
  55
  56                 n = now(CLOCK_MONOTONIC);
  57                 if (ts + timeout < n) {
  58                         log_error("Test timeout when testing %s", unit->id);
  59                         exit(EXIT_FAILURE);
  60                 }
  61         }
  62         exec_status_dump(&service->main_exec_status, stdout, "\t");
  63         assert_se(service->main_exec_status.status == status_expected);
  64         assert_se(service->main_exec_status.code == code_expected);
  65 }
  66
  67 static bool check_nobody_user_and_group(void) {
  68         static int cache = -1;
  69         struct passwd *p;
  70         struct group *g;
  71
  72         if (cache >= 0)
  73                 return !!cache;
  74
  75         if (!synthesize_nobody())
  76                 goto invalid;
  77
  78         p = getpwnam(NOBODY_USER_NAME);
  79         if (!p ||
  80             !streq(p->pw_name, NOBODY_USER_NAME) ||
  81             p->pw_uid != UID_NOBODY ||
  82             p->pw_gid != GID_NOBODY)
  83                 goto invalid;
  84
  85         p = getpwuid(UID_NOBODY);
  86         if (!p ||
  87             !streq(p->pw_name, NOBODY_USER_NAME) ||
  88             p->pw_uid != UID_NOBODY ||
  89             p->pw_gid != GID_NOBODY)
  90                 goto invalid;
  91
  92         g = getgrnam(NOBODY_GROUP_NAME);
  93         if (!g ||
  94             !streq(g->gr_name, NOBODY_GROUP_NAME) ||
  95             g->gr_gid != GID_NOBODY)
  96                 goto invalid;
  97
  98         g = getgrgid(GID_NOBODY);
  99         if (!g ||
 100             !streq(g->gr_name, NOBODY_GROUP_NAME) ||
 101             g->gr_gid != GID_NOBODY)
 102                 goto invalid;
 103
 104         cache = 1;
 105         return true;
 106
 107 invalid:
 108         cache = 0;
 109         return false;
 110 }
 111
 112 static bool is_inaccessible_available(void) {
 113         char *p;
 114
 115         FOREACH_STRING(p,
 116                 "/run/systemd/inaccessible/reg",
 117                 "/run/systemd/inaccessible/dir",
 118                 "/run/systemd/inaccessible/chr",
 119                 "/run/systemd/inaccessible/blk",
 120                 "/run/systemd/inaccessible/fifo",
 121                 "/run/systemd/inaccessible/sock"
 122         ) {
 123                 if (access(p, F_OK) < 0)
 124                         return false;
 125         }
 126
 127         return true;
 128 }
 129
 130 static void test(Manager *m, const char *unit_name, int status_expected, int code_expected) {
 131         Unit *unit;
 132
 133         assert_se(unit_name);
 134
 135         assert_se(manager_load_startable_unit_or_warn(m, unit_name, NULL, &unit) >= 0);
 136         assert_se(UNIT_VTABLE(unit)->start(unit) >= 0);
 137         check(m, unit, status_expected, code_expected);
 138 }
 139
 140 static void test_exec_bindpaths(Manager *m) {
 141         assert_se(mkdir_p("/tmp/test-exec-bindpaths", 0755) >= 0);
 142         assert_se(mkdir_p("/tmp/test-exec-bindreadonlypaths", 0755) >= 0);
 143
 144         test(m, "exec-bindpaths.service", 0, CLD_EXITED);
 145
 146         (void) rm_rf("/tmp/test-exec-bindpaths", REMOVE_ROOT|REMOVE_PHYSICAL);
 147         (void) rm_rf("/tmp/test-exec-bindreadonlypaths", REMOVE_ROOT|REMOVE_PHYSICAL);
 148 }
 149
 150 static void test_exec_cpuaffinity(Manager *m) {
 151         _cleanup_cpu_free_ cpu_set_t *c = NULL;
 152         unsigned n;
 153
 154         assert_se(c = cpu_set_malloc(&n));
 155         assert_se(sched_getaffinity(0, CPU_ALLOC_SIZE(n), c) >= 0);
 156
 157         if (CPU_ISSET_S(0, CPU_ALLOC_SIZE(n), c) == 0) {
 158                 log_notice("Cannot use CPU 0, skipping %s", __func__);
 159                 return;
 160         }
 161
 162         test(m, "exec-cpuaffinity1.service", 0, CLD_EXITED);
 163         test(m, "exec-cpuaffinity2.service", 0, CLD_EXITED);
 164
 165         if (CPU_ISSET_S(1, CPU_ALLOC_SIZE(n), c) == 0 ||
 166             CPU_ISSET_S(2, CPU_ALLOC_SIZE(n), c) == 0) {
 167                 log_notice("Cannot use CPU 1 or 2, skipping remaining tests in %s", __func__);
 168                 return;
 169         }
 170
 171         test(m, "exec-cpuaffinity3.service", 0, CLD_EXITED);
 172 }
 173
 174 static void test_exec_workingdirectory(Manager *m) {
 175         assert_se(mkdir_p("/tmp/test-exec_workingdirectory", 0755) >= 0);
 176
 177         test(m, "exec-workingdirectory.service", 0, CLD_EXITED);
 178
 179         (void) rm_rf("/tmp/test-exec_workingdirectory", REMOVE_ROOT|REMOVE_PHYSICAL);
 180 }
 181
 182 static void test_exec_personality(Manager *m) {
 183 #if defined(__x86_64__)
 184         test(m, "exec-personality-x86-64.service", 0, CLD_EXITED);
 185
 186 #elif defined(__s390__)
 187         test(m, "exec-personality-s390.service", 0, CLD_EXITED);
 188
 189 #elif defined(__powerpc64__)
 190 #  if __BYTE_ORDER == __BIG_ENDIAN
 191         test(m, "exec-personality-ppc64.service", 0, CLD_EXITED);
 192 #  else
 193         test(m, "exec-personality-ppc64le.service", 0, CLD_EXITED);
 194 #  endif
 195
 196 #elif defined(__aarch64__)
 197         test(m, "exec-personality-aarch64.service", 0, CLD_EXITED);
 198
 199 #elif defined(__i386__)
 200         test(m, "exec-personality-x86.service", 0, CLD_EXITED);
 201 #else
 202         log_notice("Unknown personality, skipping %s", __func__);
 203 #endif
 204 }
 205
 206 static void test_exec_ignoresigpipe(Manager *m) {
 207         test(m, "exec-ignoresigpipe-yes.service", 0, CLD_EXITED);
 208         test(m, "exec-ignoresigpipe-no.service", SIGPIPE, CLD_KILLED);
 209 }
 210
 211 static void test_exec_privatetmp(Manager *m) {
 212         assert_se(touch("/tmp/test-exec_privatetmp") >= 0);
 213
 214         test(m, "exec-privatetmp-yes.service", 0, CLD_EXITED);
 215         test(m, "exec-privatetmp-no.service", 0, CLD_EXITED);
 216
 217         unlink("/tmp/test-exec_privatetmp");
 218 }
 219
 220 static void test_exec_privatedevices(Manager *m) {
 221         int r;
 222
 223         if (detect_container() > 0) {
 224                 log_notice("Testing in container, skipping %s", __func__);
 225                 return;
 226         }
 227         if (!is_inaccessible_available()) {
 228                 log_notice("Testing without inaccessible, skipping %s", __func__);
 229                 return;
 230         }
 231
 232         test(m, "exec-privatedevices-yes.service", 0, CLD_EXITED);
 233         test(m, "exec-privatedevices-no.service", 0, CLD_EXITED);
 234         test(m, "exec-privatedevices-disabled-by-prefix.service", 0, CLD_EXITED);
 235
 236         /* We use capsh to test if the capabilities are
 237          * properly set, so be sure that it exists */
 238         r = find_binary("capsh", NULL);
 239         if (r < 0) {
 240                 log_notice_errno(r, "Could not find capsh binary, skipping remaining tests in %s: %m", __func__);
 241                 return;
 242         }
 243
 244         test(m, "exec-privatedevices-yes-capability-mknod.service", 0, CLD_EXITED);
 245         test(m, "exec-privatedevices-no-capability-mknod.service", 0, CLD_EXITED);
 246         test(m, "exec-privatedevices-yes-capability-sys-rawio.service", 0, CLD_EXITED);
 247         test(m, "exec-privatedevices-no-capability-sys-rawio.service", 0, CLD_EXITED);
 248 }
 249
 250 static void test_exec_protectkernelmodules(Manager *m) {
 251         int r;
 252
 253         if (detect_container() > 0) {
 254                 log_notice("Testing in container, skipping %s", __func__);
 255                 return;
 256         }
 257         if (!is_inaccessible_available()) {
 258                 log_notice("Testing without inaccessible, skipping %s", __func__);
 259                 return;
 260         }
 261
 262         r = find_binary("capsh", NULL);
 263         if (r < 0) {
 264                 log_notice_errno(r, "Skipping %s, could not find capsh binary: %m", __func__);
 265                 return;
 266         }
 267
 268         test(m, "exec-protectkernelmodules-no-capabilities.service", 0, CLD_EXITED);
 269         test(m, "exec-protectkernelmodules-yes-capabilities.service", 0, CLD_EXITED);
 270         test(m, "exec-protectkernelmodules-yes-mount-propagation.service", 0, CLD_EXITED);
 271 }
 272
 273 static void test_exec_readonlypaths(Manager *m) {
 274
 275         test(m, "exec-readonlypaths-simple.service", 0, CLD_EXITED);
 276
 277         if (path_is_read_only_fs("/var") > 0) {
 278                 log_notice("Directory /var is readonly, skipping remaining tests in %s", __func__);
 279                 return;
 280         }
 281
 282         test(m, "exec-readonlypaths.service", 0, CLD_EXITED);
 283         test(m, "exec-readonlypaths-mount-propagation.service", 0, CLD_EXITED);
 284         test(m, "exec-readonlypaths-with-bindpaths.service", 0, CLD_EXITED);
 285 }
 286
 287 static void test_exec_readwritepaths(Manager *m) {
 288
 289         if (path_is_read_only_fs("/") > 0) {
 290                 log_notice("Root directory is readonly, skipping %s", __func__);
 291                 return;
 292         }
 293
 294         test(m, "exec-readwritepaths-mount-propagation.service", 0, CLD_EXITED);
 295 }
 296
 297 static void test_exec_inaccessiblepaths(Manager *m) {
 298
 299         if (!is_inaccessible_available()) {
 300                 log_notice("Testing without inaccessible, skipping %s", __func__);
 301                 return;
 302         }
 303
 304         test(m, "exec-inaccessiblepaths-proc.service", 0, CLD_EXITED);
 305
 306         if (path_is_read_only_fs("/") > 0) {
 307                 log_notice("Root directory is readonly, skipping remaining tests in %s", __func__);
 308                 return;
 309         }
 310
 311         test(m, "exec-inaccessiblepaths-mount-propagation.service", 0, CLD_EXITED);
 312 }
 313
 314 static void test_exec_temporaryfilesystem(Manager *m) {
 315
 316         test(m, "exec-temporaryfilesystem-options.service", 0, CLD_EXITED);
 317         test(m, "exec-temporaryfilesystem-ro.service", 0, CLD_EXITED);
 318         test(m, "exec-temporaryfilesystem-rw.service", 0, CLD_EXITED);
 319         test(m, "exec-temporaryfilesystem-usr.service", 0, CLD_EXITED);
 320 }
 321
 322 static void test_exec_systemcallfilter(Manager *m) {
 323 #if HAVE_SECCOMP
 324         if (!is_seccomp_available()) {
 325                 log_notice("Seccomp not available, skipping %s", __func__);
 326                 return;
 327         }
 328
 329         test(m, "exec-systemcallfilter-not-failing.service", 0, CLD_EXITED);
 330         test(m, "exec-systemcallfilter-not-failing2.service", 0, CLD_EXITED);
 331         test(m, "exec-systemcallfilter-failing.service", SIGSYS, CLD_KILLED);
 332         test(m, "exec-systemcallfilter-failing2.service", SIGSYS, CLD_KILLED);
 333         test(m, "exec-systemcallfilter-with-errno-name.service", errno_from_name("EILSEQ"), CLD_EXITED);
 334         test(m, "exec-systemcallfilter-with-errno-number.service", 255, CLD_EXITED);
 335 #endif
 336 }
 337
 338 static void test_exec_systemcallerrornumber(Manager *m) {
 339 #if HAVE_SECCOMP
 340         if (!is_seccomp_available()) {
 341                 log_notice("Seccomp not available, skipping %s", __func__);
 342                 return;
 343         }
 344
 345         test(m, "exec-systemcallerrornumber-name.service", errno_from_name("EACCES"), CLD_EXITED);
 346         test(m, "exec-systemcallerrornumber-number.service", 255, CLD_EXITED);
 347 #endif
 348 }
 349
 350 static void test_exec_restrictnamespaces(Manager *m) {
 351 #if HAVE_SECCOMP
 352         if (!is_seccomp_available()) {
 353                 log_notice("Seccomp not available, skipping %s", __func__);
 354                 return;
 355         }
 356
 357         test(m, "exec-restrictnamespaces-no.service", 0, CLD_EXITED);
 358         test(m, "exec-restrictnamespaces-yes.service", 1, CLD_EXITED);
 359         test(m, "exec-restrictnamespaces-mnt.service", 0, CLD_EXITED);
 360         test(m, "exec-restrictnamespaces-mnt-blacklist.service", 1, CLD_EXITED);
 361 #endif
 362 }
 363
 364 static void test_exec_systemcallfilter_system(Manager *m) {
 365 #if HAVE_SECCOMP
 366         if (!is_seccomp_available()) {
 367                 log_notice("Seccomp not available, skipping %s", __func__);
 368                 return;
 369         }
 370
 371         test(m, "exec-systemcallfilter-system-user.service", 0, CLD_EXITED);
 372
 373         if (!check_nobody_user_and_group()) {
 374                 log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__);
 375                 return;
 376         }
 377
 378         if (!STR_IN_SET(NOBODY_USER_NAME, "nobody", "nfsnobody")) {
 379                 log_notice("Unsupported nobody user name '%s', skipping remaining tests in %s", NOBODY_USER_NAME, __func__);
 380                 return;
 381         }
 382
 383         test(m, "exec-systemcallfilter-system-user-" NOBODY_USER_NAME ".service", 0, CLD_EXITED);
 384 #endif
 385 }
 386
 387 static void test_exec_user(Manager *m) {
 388         test(m, "exec-user.service", 0, CLD_EXITED);
 389
 390         if (!check_nobody_user_and_group()) {
 391                 log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__);
 392                 return;
 393         }
 394
 395         if (!STR_IN_SET(NOBODY_USER_NAME, "nobody", "nfsnobody")) {
 396                 log_notice("Unsupported nobody user name '%s', skipping remaining tests in %s", NOBODY_USER_NAME, __func__);
 397                 return;
 398         }
 399
 400         test(m, "exec-user-" NOBODY_USER_NAME ".service", 0, CLD_EXITED);
 401 }
 402
 403 static void test_exec_group(Manager *m) {
 404         test(m, "exec-group.service", 0, CLD_EXITED);
 405
 406         if (!check_nobody_user_and_group()) {
 407                 log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__);
 408                 return;
 409         }
 410
 411         if (!STR_IN_SET(NOBODY_GROUP_NAME, "nobody", "nfsnobody", "nogroup")) {
 412                 log_notice("Unsupported nobody group name '%s', skipping remaining tests in %s", NOBODY_GROUP_NAME, __func__);
 413                 return;
 414         }
 415
 416         test(m, "exec-group-" NOBODY_GROUP_NAME ".service", 0, CLD_EXITED);
 417 }
 418
 419 static void test_exec_supplementarygroups(Manager *m) {
 420         test(m, "exec-supplementarygroups.service", 0, CLD_EXITED);
 421         test(m, "exec-supplementarygroups-single-group.service", 0, CLD_EXITED);
 422         test(m, "exec-supplementarygroups-single-group-user.service", 0, CLD_EXITED);
 423         test(m, "exec-supplementarygroups-multiple-groups-default-group-user.service", 0, CLD_EXITED);
 424         test(m, "exec-supplementarygroups-multiple-groups-withgid.service", 0, CLD_EXITED);
 425         test(m, "exec-supplementarygroups-multiple-groups-withuid.service", 0, CLD_EXITED);
 426 }
 427
 428 static void test_exec_dynamicuser(Manager *m) {
 429         test(m, "exec-dynamicuser-fixeduser.service", 0, CLD_EXITED);
 430         test(m, "exec-dynamicuser-fixeduser-one-supplementarygroup.service", 0, CLD_EXITED);
 431         test(m, "exec-dynamicuser-supplementarygroups.service", 0, CLD_EXITED);
 432         test(m, "exec-dynamicuser-statedir.service", 0, CLD_EXITED);
 433
 434         test(m, "exec-dynamicuser-statedir-migrate-step1.service", 0, CLD_EXITED);
 435         test(m, "exec-dynamicuser-statedir-migrate-step2.service", 0, CLD_EXITED);
 436         (void) rm_rf("/var/lib/test-dynamicuser-migrate", REMOVE_ROOT|REMOVE_PHYSICAL);
 437         (void) rm_rf("/var/lib/test-dynamicuser-migrate2", REMOVE_ROOT|REMOVE_PHYSICAL);
 438         (void) rm_rf("/var/lib/private/test-dynamicuser-migrate", REMOVE_ROOT|REMOVE_PHYSICAL);
 439         (void) rm_rf("/var/lib/private/test-dynamicuser-migrate2", REMOVE_ROOT|REMOVE_PHYSICAL);
 440 }
 441
 442 static void test_exec_environment(Manager *m) {
 443         test(m, "exec-environment.service", 0, CLD_EXITED);
 444         test(m, "exec-environment-multiple.service", 0, CLD_EXITED);
 445         test(m, "exec-environment-empty.service", 0, CLD_EXITED);
 446 }
 447
 448 static void test_exec_environmentfile(Manager *m) {
 449         static const char e[] =
 450                 "VAR1='word1 word2'\n"
 451                 "VAR2=word3 \n"
 452                 "# comment1\n"
 453                 "\n"
 454                 "; comment2\n"
 455                 " ; # comment3\n"
 456                 "line without an equal\n"
 457                 "VAR3='$word 5 6'\n"
 458                 "VAR4='new\nline'\n";
 459         int r;
 460
 461         r = write_string_file("/tmp/test-exec_environmentfile.conf", e, WRITE_STRING_FILE_CREATE);
 462         assert_se(r == 0);
 463
 464         test(m, "exec-environmentfile.service", 0, CLD_EXITED);
 465
 466         (void) unlink("/tmp/test-exec_environmentfile.conf");
 467 }
 468
 469 static void test_exec_passenvironment(Manager *m) {
 470         /* test-execute runs under MANAGER_USER which, by default, forwards all
 471          * variables present in the environment, but only those that are
 472          * present _at the time it is created_!
 473          *
 474          * So these PassEnvironment checks are still expected to work, since we
 475          * are ensuring the variables are not present at manager creation (they
 476          * are unset explicitly in main) and are only set here.
 477          *
 478          * This is still a good approximation of how a test for MANAGER_SYSTEM
 479          * would work.
 480          */
 481         assert_se(setenv("VAR1", "word1 word2", 1) == 0);
 482         assert_se(setenv("VAR2", "word3", 1) == 0);
 483         assert_se(setenv("VAR3", "$word 5 6", 1) == 0);
 484         assert_se(setenv("VAR4", "new\nline", 1) == 0);
 485         test(m, "exec-passenvironment.service", 0, CLD_EXITED);
 486         test(m, "exec-passenvironment-repeated.service", 0, CLD_EXITED);
 487         test(m, "exec-passenvironment-empty.service", 0, CLD_EXITED);
 488         assert_se(unsetenv("VAR1") == 0);
 489         assert_se(unsetenv("VAR2") == 0);
 490         assert_se(unsetenv("VAR3") == 0);
 491         assert_se(unsetenv("VAR4") == 0);
 492         test(m, "exec-passenvironment-absent.service", 0, CLD_EXITED);
 493 }
 494
 495 static void test_exec_umask(Manager *m) {
 496         test(m, "exec-umask-default.service", 0, CLD_EXITED);
 497         test(m, "exec-umask-0177.service", 0, CLD_EXITED);
 498 }
 499
 500 static void test_exec_runtimedirectory(Manager *m) {
 501         test(m, "exec-runtimedirectory.service", 0, CLD_EXITED);
 502         test(m, "exec-runtimedirectory-mode.service", 0, CLD_EXITED);
 503         test(m, "exec-runtimedirectory-owner.service", 0, CLD_EXITED);
 504
 505         if (!check_nobody_user_and_group()) {
 506                 log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__);
 507                 return;
 508         }
 509
 510         if (!STR_IN_SET(NOBODY_GROUP_NAME, "nobody", "nfsnobody", "nogroup")) {
 511                 log_notice("Unsupported nobody group name '%s', skipping remaining tests in %s", NOBODY_GROUP_NAME, __func__);
 512                 return;
 513         }
 514
 515         test(m, "exec-runtimedirectory-owner-" NOBODY_GROUP_NAME ".service", 0, CLD_EXITED);
 516 }
 517
 518 static void test_exec_capabilityboundingset(Manager *m) {
 519         int r;
 520
 521         r = find_binary("capsh", NULL);
 522         if (r < 0) {
 523                 log_notice_errno(r, "Skipping %s, could not find capsh binary: %m", __func__);
 524                 return;
 525         }
 526
 527         if (have_effective_cap(CAP_CHOWN) <= 0 ||
 528             have_effective_cap(CAP_FOWNER) <= 0 ||
 529             have_effective_cap(CAP_KILL) <= 0) {
 530                 log_notice("Skipping %s, this process does not have enough capabilities", __func__);
 531                 return;
 532         }
 533
 534         test(m, "exec-capabilityboundingset-simple.service", 0, CLD_EXITED);
 535         test(m, "exec-capabilityboundingset-reset.service", 0, CLD_EXITED);
 536         test(m, "exec-capabilityboundingset-merge.service", 0, CLD_EXITED);
 537         test(m, "exec-capabilityboundingset-invert.service", 0, CLD_EXITED);
 538 }
 539
 540 static void test_exec_basic(Manager *m) {
 541         test(m, "exec-basic.service", 0, CLD_EXITED);
 542 }
 543
 544 static void test_exec_ambientcapabilities(Manager *m) {
 545         int r;
 546
 547         /* Check if the kernel has support for ambient capabilities. Run
 548          * the tests only if that's the case. Clearing all ambient
 549          * capabilities is fine, since we are expecting them to be unset
 550          * in the first place for the tests. */
 551         r = prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_CLEAR_ALL, 0, 0, 0);
 552         if (r < 0 && IN_SET(errno, EINVAL, EOPNOTSUPP, ENOSYS)) {
 553                 log_notice("Skipping %s, the kernel does not support ambient capabilities", __func__);
 554                 return;
 555         }
 556
 557         if (have_effective_cap(CAP_CHOWN) <= 0 ||
 558             have_effective_cap(CAP_NET_RAW) <= 0) {
 559                 log_notice("Skipping %s, this process does not have enough capabilities", __func__);
 560                 return;
 561         }
 562
 563         test(m, "exec-ambientcapabilities.service", 0, CLD_EXITED);
 564         test(m, "exec-ambientcapabilities-merge.service", 0, CLD_EXITED);
 565
 566         if (!check_nobody_user_and_group()) {
 567                 log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__);
 568                 return;
 569         }
 570
 571         if (!STR_IN_SET(NOBODY_USER_NAME, "nobody", "nfsnobody")) {
 572                 log_notice("Unsupported nobody user name '%s', skipping remaining tests in %s", NOBODY_USER_NAME, __func__);
 573                 return;
 574         }
 575
 576         test(m, "exec-ambientcapabilities-" NOBODY_USER_NAME ".service", 0, CLD_EXITED);
 577         test(m, "exec-ambientcapabilities-merge-" NOBODY_USER_NAME ".service", 0, CLD_EXITED);
 578 }
 579
 580 static void test_exec_privatenetwork(Manager *m) {
 581         int r;
 582
 583         r = find_binary("ip", NULL);
 584         if (r < 0) {
 585                 log_notice_errno(r, "Skipping %s, could not find ip binary: %m", __func__);
 586                 return;
 587         }
 588
 589         test(m, "exec-privatenetwork-yes.service", 0, CLD_EXITED);
 590 }
 591
 592 static void test_exec_oomscoreadjust(Manager *m) {
 593         test(m, "exec-oomscoreadjust-positive.service", 0, CLD_EXITED);
 594         test(m, "exec-oomscoreadjust-negative.service", 0, CLD_EXITED);
 595 }
 596
 597 static void test_exec_ioschedulingclass(Manager *m) {
 598         test(m, "exec-ioschedulingclass-none.service", 0, CLD_EXITED);
 599         test(m, "exec-ioschedulingclass-idle.service", 0, CLD_EXITED);
 600         test(m, "exec-ioschedulingclass-realtime.service", 0, CLD_EXITED);
 601         test(m, "exec-ioschedulingclass-best-effort.service", 0, CLD_EXITED);
 602 }
 603
 604 static void test_exec_unsetenvironment(Manager *m) {
 605         test(m, "exec-unsetenvironment.service", 0, CLD_EXITED);
 606 }
 607
 608 static void test_exec_specifier(Manager *m) {
 609         test(m, "exec-specifier.service", 0, CLD_EXITED);
 610         test(m, "exec-specifier@foo-bar.service", 0, CLD_EXITED);
 611         test(m, "exec-specifier-interpolation.service", 0, CLD_EXITED);
 612 }
 613
 614 static void test_exec_standardinput(Manager *m) {
 615         test(m, "exec-standardinput-data.service", 0, CLD_EXITED);
 616         test(m, "exec-standardinput-file.service", 0, CLD_EXITED);
 617 }
 618
 619 static int run_tests(UnitFileScope scope, const test_function_t *tests) {
 620         const test_function_t *test = NULL;
 621         _cleanup_(manager_freep) Manager *m = NULL;
 622         int r;
 623
 624         assert_se(tests);
 625
 626         r = manager_new(scope, MANAGER_TEST_RUN_BASIC, &m);
 627         if (MANAGER_SKIP_TEST(r)) {
 628                 log_notice_errno(r, "Skipping test: manager_new: %m");
 629                 return EXIT_TEST_SKIP;
 630         }
 631         assert_se(r >= 0);
 632         assert_se(manager_startup(m, NULL, NULL) >= 0);
 633
 634         for (test = tests; test && *test; test++)
 635                 (*test)(m);
 636
 637         return 0;
 638 }
 639
 640 int main(int argc, char *argv[]) {
 641         _cleanup_(rm_rf_physical_and_freep) char *runtime_dir = NULL;
 642         static const test_function_t user_tests[] = {
 643                 test_exec_basic,
 644                 test_exec_ambientcapabilities,
 645                 test_exec_bindpaths,
 646                 test_exec_capabilityboundingset,
 647                 test_exec_cpuaffinity,
 648                 test_exec_environment,
 649                 test_exec_environmentfile,
 650                 test_exec_group,
 651                 test_exec_ignoresigpipe,
 652                 test_exec_inaccessiblepaths,
 653                 test_exec_ioschedulingclass,
 654                 test_exec_oomscoreadjust,
 655                 test_exec_passenvironment,
 656                 test_exec_personality,
 657                 test_exec_privatedevices,
 658                 test_exec_privatenetwork,
 659                 test_exec_privatetmp,
 660                 test_exec_protectkernelmodules,
 661                 test_exec_readonlypaths,
 662                 test_exec_readwritepaths,
 663                 test_exec_restrictnamespaces,
 664                 test_exec_runtimedirectory,
 665                 test_exec_standardinput,
 666                 test_exec_supplementarygroups,
 667                 test_exec_systemcallerrornumber,
 668                 test_exec_systemcallfilter,
 669                 test_exec_temporaryfilesystem,
 670                 test_exec_umask,
 671                 test_exec_unsetenvironment,
 672                 test_exec_user,
 673                 test_exec_workingdirectory,
 674                 NULL,
 675         };
 676         static const test_function_t system_tests[] = {
 677                 test_exec_dynamicuser,
 678                 test_exec_specifier,
 679                 test_exec_systemcallfilter_system,
 680                 NULL,
 681         };
 682         int r;
 683
 684         log_set_max_level(LOG_DEBUG);
 685         log_parse_environment();
 686         log_open();
 687
 688         (void) unsetenv("USER");
 689         (void) unsetenv("LOGNAME");
 690         (void) unsetenv("SHELL");
 691
 692         /* It is needed otherwise cgroup creation fails */
 693         if (getuid() != 0) {
 694                 puts("Skipping test: not root");
 695                 return EXIT_TEST_SKIP;
 696         }
 697
 698         r = enter_cgroup_subroot();
 699         if (r == -ENOMEDIUM) {
 700                 puts("Skipping test: cgroupfs not available");
 701                 return EXIT_TEST_SKIP;
 702         }
 703
 704         assert_se(runtime_dir = setup_fake_runtime_dir());
 705         assert_se(set_unit_path(get_testdata_dir("/test-execute")) >= 0);
 706
 707         /* Unset VAR1, VAR2 and VAR3 which are used in the PassEnvironment test
 708          * cases, otherwise (and if they are present in the environment),
 709          * `manager_default_environment` will copy them into the default
 710          * environment which is passed to each created job, which will make the
 711          * tests that expect those not to be present to fail.
 712          */
 713         assert_se(unsetenv("VAR1") == 0);
 714         assert_se(unsetenv("VAR2") == 0);
 715         assert_se(unsetenv("VAR3") == 0);
 716
 717         r = run_tests(UNIT_FILE_USER, user_tests);
 718         if (r != 0)
 719                 return r;
 720
 721         return run_tests(UNIT_FILE_SYSTEM, system_tests);
 722 }