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 "service.h"
  28 #include "stat-util.h"
  29 #include "test-helper.h"
  30 #include "tests.h"
  31 #include "unit.h"
  32 #include "user-util.h"
  33 #include "util.h"
  34 #include "virt.h"
  35
  36 typedef void (*test_function_t)(Manager *m);
  37
  38 static void check(Manager *m, Unit *unit, int status_expected, int code_expected) {
  39         Service *service = NULL;
  40         usec_t ts;
  41         usec_t timeout = 2 * USEC_PER_MINUTE;
  42
  43         assert_se(m);
  44         assert_se(unit);
  45
  46         service = SERVICE(unit);
  47         printf("%s\n", unit->id);
  48         exec_context_dump(&service->exec_context, stdout, "\t");
  49         ts = now(CLOCK_MONOTONIC);
  50         while (!IN_SET(service->state, SERVICE_DEAD, SERVICE_FAILED)) {
  51                 int r;
  52                 usec_t n;
  53
  54                 r = sd_event_run(m->event, 100 * USEC_PER_MSEC);
  55                 assert_se(r >= 0);
  56
  57                 n = now(CLOCK_MONOTONIC);
  58                 if (ts + timeout < n) {
  59                         log_error("Test timeout when testing %s", unit->id);
  60                         exit(EXIT_FAILURE);
  61                 }
  62         }
  63         exec_status_dump(&service->main_exec_status, stdout, "\t");
  64         assert_se(service->main_exec_status.status == status_expected);
  65         assert_se(service->main_exec_status.code == code_expected);
  66 }
  67
  68 static bool check_nobody_user_and_group(void) {
  69         static int cache = -1;
  70         struct passwd *p;
  71         struct group *g;
  72
  73         if (cache >= 0)
  74                 return !!cache;
  75
  76         if (!synthesize_nobody())
  77                 goto invalid;
  78
  79         p = getpwnam(NOBODY_USER_NAME);
  80         if (!p ||
  81             !streq(p->pw_name, NOBODY_USER_NAME) ||
  82             p->pw_uid != UID_NOBODY ||
  83             p->pw_gid != GID_NOBODY)
  84                 goto invalid;
  85
  86         p = getpwuid(UID_NOBODY);
  87         if (!p ||
  88             !streq(p->pw_name, NOBODY_USER_NAME) ||
  89             p->pw_uid != UID_NOBODY ||
  90             p->pw_gid != GID_NOBODY)
  91                 goto invalid;
  92
  93         g = getgrnam(NOBODY_GROUP_NAME);
  94         if (!g ||
  95             !streq(g->gr_name, NOBODY_GROUP_NAME) ||
  96             g->gr_gid != GID_NOBODY)
  97                 goto invalid;
  98
  99         g = getgrgid(GID_NOBODY);
 100         if (!g ||
 101             !streq(g->gr_name, NOBODY_GROUP_NAME) ||
 102             g->gr_gid != GID_NOBODY)
 103                 goto invalid;
 104
 105         cache = 1;
 106         return true;
 107
 108 invalid:
 109         cache = 0;
 110         return false;
 111 }
 112
 113 static bool is_inaccessible_available(void) {
 114         char *p;
 115
 116         FOREACH_STRING(p,
 117                 "/run/systemd/inaccessible/reg",
 118                 "/run/systemd/inaccessible/dir",
 119                 "/run/systemd/inaccessible/chr",
 120                 "/run/systemd/inaccessible/blk",
 121                 "/run/systemd/inaccessible/fifo",
 122                 "/run/systemd/inaccessible/sock"
 123         ) {
 124                 if (access(p, F_OK) < 0)
 125                         return false;
 126         }
 127
 128         return true;
 129 }
 130
 131 static void test(Manager *m, const char *unit_name, int status_expected, int code_expected) {
 132         Unit *unit;
 133
 134         assert_se(unit_name);
 135
 136         assert_se(manager_load_startable_unit_or_warn(m, unit_name, NULL, &unit) >= 0);
 137         assert_se(UNIT_VTABLE(unit)->start(unit) >= 0);
 138         check(m, unit, status_expected, code_expected);
 139 }
 140
 141 static void test_exec_bindpaths(Manager *m) {
 142         assert_se(mkdir_p("/tmp/test-exec-bindpaths", 0755) >= 0);
 143         assert_se(mkdir_p("/tmp/test-exec-bindreadonlypaths", 0755) >= 0);
 144
 145         test(m, "exec-bindpaths.service", 0, CLD_EXITED);
 146
 147         (void) rm_rf("/tmp/test-exec-bindpaths", REMOVE_ROOT|REMOVE_PHYSICAL);
 148         (void) rm_rf("/tmp/test-exec-bindreadonlypaths", REMOVE_ROOT|REMOVE_PHYSICAL);
 149 }
 150
 151 static void test_exec_cpuaffinity(Manager *m) {
 152         _cleanup_cpu_free_ cpu_set_t *c = NULL;
 153         unsigned n;
 154
 155         assert_se(c = cpu_set_malloc(&n));
 156         assert_se(sched_getaffinity(0, CPU_ALLOC_SIZE(n), c) >= 0);
 157
 158         if (CPU_ISSET_S(0, CPU_ALLOC_SIZE(n), c) == 0) {
 159                 log_notice("Cannot use CPU 0, skipping %s", __func__);
 160                 return;
 161         }
 162
 163         test(m, "exec-cpuaffinity1.service", 0, CLD_EXITED);
 164         test(m, "exec-cpuaffinity2.service", 0, CLD_EXITED);
 165
 166         if (CPU_ISSET_S(1, CPU_ALLOC_SIZE(n), c) == 0 ||
 167             CPU_ISSET_S(2, CPU_ALLOC_SIZE(n), c) == 0) {
 168                 log_notice("Cannot use CPU 1 or 2, skipping remaining tests in %s", __func__);
 169                 return;
 170         }
 171
 172         test(m, "exec-cpuaffinity3.service", 0, CLD_EXITED);
 173 }
 174
 175 static void test_exec_workingdirectory(Manager *m) {
 176         assert_se(mkdir_p("/tmp/test-exec_workingdirectory", 0755) >= 0);
 177
 178         test(m, "exec-workingdirectory.service", 0, CLD_EXITED);
 179
 180         (void) rm_rf("/tmp/test-exec_workingdirectory", REMOVE_ROOT|REMOVE_PHYSICAL);
 181 }
 182
 183 static void test_exec_personality(Manager *m) {
 184 #if defined(__x86_64__)
 185         test(m, "exec-personality-x86-64.service", 0, CLD_EXITED);
 186
 187 #elif defined(__s390__)
 188         test(m, "exec-personality-s390.service", 0, CLD_EXITED);
 189
 190 #elif defined(__powerpc64__)
 191 #  if __BYTE_ORDER == __BIG_ENDIAN
 192         test(m, "exec-personality-ppc64.service", 0, CLD_EXITED);
 193 #  else
 194         test(m, "exec-personality-ppc64le.service", 0, CLD_EXITED);
 195 #  endif
 196
 197 #elif defined(__aarch64__)
 198         test(m, "exec-personality-aarch64.service", 0, CLD_EXITED);
 199
 200 #elif defined(__i386__)
 201         test(m, "exec-personality-x86.service", 0, CLD_EXITED);
 202 #else
 203         log_notice("Unknown personality, skipping %s", __func__);
 204 #endif
 205 }
 206
 207 static void test_exec_ignoresigpipe(Manager *m) {
 208         test(m, "exec-ignoresigpipe-yes.service", 0, CLD_EXITED);
 209         test(m, "exec-ignoresigpipe-no.service", SIGPIPE, CLD_KILLED);
 210 }
 211
 212 static void test_exec_privatetmp(Manager *m) {
 213         assert_se(touch("/tmp/test-exec_privatetmp") >= 0);
 214
 215         test(m, "exec-privatetmp-yes.service", 0, CLD_EXITED);
 216         test(m, "exec-privatetmp-no.service", 0, CLD_EXITED);
 217
 218         unlink("/tmp/test-exec_privatetmp");
 219 }
 220
 221 static void test_exec_privatedevices(Manager *m) {
 222         int r;
 223
 224         if (detect_container() > 0) {
 225                 log_notice("Testing in container, skipping %s", __func__);
 226                 return;
 227         }
 228         if (!is_inaccessible_available()) {
 229                 log_notice("Testing without inaccessible, skipping %s", __func__);
 230                 return;
 231         }
 232
 233         test(m, "exec-privatedevices-yes.service", 0, CLD_EXITED);
 234         test(m, "exec-privatedevices-no.service", 0, CLD_EXITED);
 235         test(m, "exec-privatedevices-disabled-by-prefix.service", 0, CLD_EXITED);
 236
 237         /* We use capsh to test if the capabilities are
 238          * properly set, so be sure that it exists */
 239         r = find_binary("capsh", NULL);
 240         if (r < 0) {
 241                 log_notice_errno(r, "Could not find capsh binary, skipping remaining tests in %s: %m", __func__);
 242                 return;
 243         }
 244
 245         test(m, "exec-privatedevices-yes-capability-mknod.service", 0, CLD_EXITED);
 246         test(m, "exec-privatedevices-no-capability-mknod.service", 0, CLD_EXITED);
 247         test(m, "exec-privatedevices-yes-capability-sys-rawio.service", 0, CLD_EXITED);
 248         test(m, "exec-privatedevices-no-capability-sys-rawio.service", 0, CLD_EXITED);
 249 }
 250
 251 static void test_exec_protectkernelmodules(Manager *m) {
 252         int r;
 253
 254         if (detect_container() > 0) {
 255                 log_notice("Testing in container, skipping %s", __func__);
 256                 return;
 257         }
 258         if (!is_inaccessible_available()) {
 259                 log_notice("Testing without inaccessible, skipping %s", __func__);
 260                 return;
 261         }
 262
 263         r = find_binary("capsh", NULL);
 264         if (r < 0) {
 265                 log_notice_errno(r, "Skipping %s, could not find capsh binary: %m", __func__);
 266                 return;
 267         }
 268
 269         test(m, "exec-protectkernelmodules-no-capabilities.service", 0, CLD_EXITED);
 270         test(m, "exec-protectkernelmodules-yes-capabilities.service", 0, CLD_EXITED);
 271         test(m, "exec-protectkernelmodules-yes-mount-propagation.service", 0, CLD_EXITED);
 272 }
 273
 274 static void test_exec_readonlypaths(Manager *m) {
 275
 276         test(m, "exec-readonlypaths-simple.service", 0, CLD_EXITED);
 277
 278         if (path_is_read_only_fs("/var") > 0) {
 279                 log_notice("Directory /var is readonly, skipping remaining tests in %s", __func__);
 280                 return;
 281         }
 282
 283         test(m, "exec-readonlypaths.service", 0, CLD_EXITED);
 284         test(m, "exec-readonlypaths-mount-propagation.service", 0, CLD_EXITED);
 285         test(m, "exec-readonlypaths-with-bindpaths.service", 0, CLD_EXITED);
 286 }
 287
 288 static void test_exec_readwritepaths(Manager *m) {
 289
 290         if (path_is_read_only_fs("/") > 0) {
 291                 log_notice("Root directory is readonly, skipping %s", __func__);
 292                 return;
 293         }
 294
 295         test(m, "exec-readwritepaths-mount-propagation.service", 0, CLD_EXITED);
 296 }
 297
 298 static void test_exec_inaccessiblepaths(Manager *m) {
 299
 300         if (!is_inaccessible_available()) {
 301                 log_notice("Testing without inaccessible, skipping %s", __func__);
 302                 return;
 303         }
 304
 305         test(m, "exec-inaccessiblepaths-proc.service", 0, CLD_EXITED);
 306
 307         if (path_is_read_only_fs("/") > 0) {
 308                 log_notice("Root directory is readonly, skipping remaining tests in %s", __func__);
 309                 return;
 310         }
 311
 312         test(m, "exec-inaccessiblepaths-mount-propagation.service", 0, CLD_EXITED);
 313 }
 314
 315 static void test_exec_temporaryfilesystem(Manager *m) {
 316
 317         test(m, "exec-temporaryfilesystem-options.service", 0, CLD_EXITED);
 318         test(m, "exec-temporaryfilesystem-ro.service", 0, CLD_EXITED);
 319         test(m, "exec-temporaryfilesystem-rw.service", 0, CLD_EXITED);
 320         test(m, "exec-temporaryfilesystem-usr.service", 0, CLD_EXITED);
 321 }
 322
 323 static void test_exec_systemcallfilter(Manager *m) {
 324 #if HAVE_SECCOMP
 325         if (!is_seccomp_available()) {
 326                 log_notice("Seccomp not available, skipping %s", __func__);
 327                 return;
 328         }
 329
 330         test(m, "exec-systemcallfilter-not-failing.service", 0, CLD_EXITED);
 331         test(m, "exec-systemcallfilter-not-failing2.service", 0, CLD_EXITED);
 332         test(m, "exec-systemcallfilter-failing.service", SIGSYS, CLD_KILLED);
 333         test(m, "exec-systemcallfilter-failing2.service", SIGSYS, CLD_KILLED);
 334         test(m, "exec-systemcallfilter-with-errno-name.service", errno_from_name("EILSEQ"), CLD_EXITED);
 335         test(m, "exec-systemcallfilter-with-errno-number.service", 255, CLD_EXITED);
 336 #endif
 337 }
 338
 339 static void test_exec_systemcallerrornumber(Manager *m) {
 340 #if HAVE_SECCOMP
 341         if (!is_seccomp_available()) {
 342                 log_notice("Seccomp not available, skipping %s", __func__);
 343                 return;
 344         }
 345
 346         test(m, "exec-systemcallerrornumber-name.service", errno_from_name("EACCES"), CLD_EXITED);
 347         test(m, "exec-systemcallerrornumber-number.service", 255, CLD_EXITED);
 348 #endif
 349 }
 350
 351 static void test_exec_restrictnamespaces(Manager *m) {
 352 #if HAVE_SECCOMP
 353         if (!is_seccomp_available()) {
 354                 log_notice("Seccomp not available, skipping %s", __func__);
 355                 return;
 356         }
 357
 358         test(m, "exec-restrictnamespaces-no.service", 0, CLD_EXITED);
 359         test(m, "exec-restrictnamespaces-yes.service", 1, CLD_EXITED);
 360         test(m, "exec-restrictnamespaces-mnt.service", 0, CLD_EXITED);
 361         test(m, "exec-restrictnamespaces-mnt-blacklist.service", 1, CLD_EXITED);
 362         test(m, "exec-restrictnamespaces-merge-and.service", 0, CLD_EXITED);
 363         test(m, "exec-restrictnamespaces-merge-or.service", 0, CLD_EXITED);
 364         test(m, "exec-restrictnamespaces-merge-all.service", 0, CLD_EXITED);
 365 #endif
 366 }
 367
 368 static void test_exec_systemcallfilter_system(Manager *m) {
 369 #if HAVE_SECCOMP
 370         if (!is_seccomp_available()) {
 371                 log_notice("Seccomp not available, skipping %s", __func__);
 372                 return;
 373         }
 374
 375         test(m, "exec-systemcallfilter-system-user.service", 0, CLD_EXITED);
 376
 377         if (!check_nobody_user_and_group()) {
 378                 log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__);
 379                 return;
 380         }
 381
 382         if (!STR_IN_SET(NOBODY_USER_NAME, "nobody", "nfsnobody")) {
 383                 log_notice("Unsupported nobody user name '%s', skipping remaining tests in %s", NOBODY_USER_NAME, __func__);
 384                 return;
 385         }
 386
 387         test(m, "exec-systemcallfilter-system-user-" NOBODY_USER_NAME ".service", 0, CLD_EXITED);
 388 #endif
 389 }
 390
 391 static void test_exec_user(Manager *m) {
 392         test(m, "exec-user.service", 0, CLD_EXITED);
 393
 394         if (!check_nobody_user_and_group()) {
 395                 log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__);
 396                 return;
 397         }
 398
 399         if (!STR_IN_SET(NOBODY_USER_NAME, "nobody", "nfsnobody")) {
 400                 log_notice("Unsupported nobody user name '%s', skipping remaining tests in %s", NOBODY_USER_NAME, __func__);
 401                 return;
 402         }
 403
 404         test(m, "exec-user-" NOBODY_USER_NAME ".service", 0, CLD_EXITED);
 405 }
 406
 407 static void test_exec_group(Manager *m) {
 408         test(m, "exec-group.service", 0, CLD_EXITED);
 409
 410         if (!check_nobody_user_and_group()) {
 411                 log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__);
 412                 return;
 413         }
 414
 415         if (!STR_IN_SET(NOBODY_GROUP_NAME, "nobody", "nfsnobody", "nogroup")) {
 416                 log_notice("Unsupported nobody group name '%s', skipping remaining tests in %s", NOBODY_GROUP_NAME, __func__);
 417                 return;
 418         }
 419
 420         test(m, "exec-group-" NOBODY_GROUP_NAME ".service", 0, CLD_EXITED);
 421 }
 422
 423 static void test_exec_supplementarygroups(Manager *m) {
 424         test(m, "exec-supplementarygroups.service", 0, CLD_EXITED);
 425         test(m, "exec-supplementarygroups-single-group.service", 0, CLD_EXITED);
 426         test(m, "exec-supplementarygroups-single-group-user.service", 0, CLD_EXITED);
 427         test(m, "exec-supplementarygroups-multiple-groups-default-group-user.service", 0, CLD_EXITED);
 428         test(m, "exec-supplementarygroups-multiple-groups-withgid.service", 0, CLD_EXITED);
 429         test(m, "exec-supplementarygroups-multiple-groups-withuid.service", 0, CLD_EXITED);
 430 }
 431
 432 static void test_exec_dynamicuser(Manager *m) {
 433         test(m, "exec-dynamicuser-fixeduser.service", 0, CLD_EXITED);
 434         test(m, "exec-dynamicuser-fixeduser-one-supplementarygroup.service", 0, CLD_EXITED);
 435         test(m, "exec-dynamicuser-supplementarygroups.service", 0, CLD_EXITED);
 436         test(m, "exec-dynamicuser-statedir.service", 0, CLD_EXITED);
 437
 438         (void) rm_rf("/var/lib/test-dynamicuser-migrate", REMOVE_ROOT|REMOVE_PHYSICAL);
 439         (void) rm_rf("/var/lib/test-dynamicuser-migrate2", REMOVE_ROOT|REMOVE_PHYSICAL);
 440         (void) rm_rf("/var/lib/private/test-dynamicuser-migrate", REMOVE_ROOT|REMOVE_PHYSICAL);
 441         (void) rm_rf("/var/lib/private/test-dynamicuser-migrate2", REMOVE_ROOT|REMOVE_PHYSICAL);
 442
 443         test(m, "exec-dynamicuser-statedir-migrate-step1.service", 0, CLD_EXITED);
 444         test(m, "exec-dynamicuser-statedir-migrate-step2.service", 0, CLD_EXITED);
 445
 446         (void) rm_rf("/var/lib/test-dynamicuser-migrate", REMOVE_ROOT|REMOVE_PHYSICAL);
 447         (void) rm_rf("/var/lib/test-dynamicuser-migrate2", REMOVE_ROOT|REMOVE_PHYSICAL);
 448         (void) rm_rf("/var/lib/private/test-dynamicuser-migrate", REMOVE_ROOT|REMOVE_PHYSICAL);
 449         (void) rm_rf("/var/lib/private/test-dynamicuser-migrate2", REMOVE_ROOT|REMOVE_PHYSICAL);
 450 }
 451
 452 static void test_exec_environment(Manager *m) {
 453         test(m, "exec-environment.service", 0, CLD_EXITED);
 454         test(m, "exec-environment-multiple.service", 0, CLD_EXITED);
 455         test(m, "exec-environment-empty.service", 0, CLD_EXITED);
 456 }
 457
 458 static void test_exec_environmentfile(Manager *m) {
 459         static const char e[] =
 460                 "VAR1='word1 word2'\n"
 461                 "VAR2=word3 \n"
 462                 "# comment1\n"
 463                 "\n"
 464                 "; comment2\n"
 465                 " ; # comment3\n"
 466                 "line without an equal\n"
 467                 "VAR3='$word 5 6'\n"
 468                 "VAR4='new\nline'\n"
 469                 "VAR5=password\\with\\backslashes";
 470         int r;
 471
 472         r = write_string_file("/tmp/test-exec_environmentfile.conf", e, WRITE_STRING_FILE_CREATE);
 473         assert_se(r == 0);
 474
 475         test(m, "exec-environmentfile.service", 0, CLD_EXITED);
 476
 477         (void) unlink("/tmp/test-exec_environmentfile.conf");
 478 }
 479
 480 static void test_exec_passenvironment(Manager *m) {
 481         /* test-execute runs under MANAGER_USER which, by default, forwards all
 482          * variables present in the environment, but only those that are
 483          * present _at the time it is created_!
 484          *
 485          * So these PassEnvironment checks are still expected to work, since we
 486          * are ensuring the variables are not present at manager creation (they
 487          * are unset explicitly in main) and are only set here.
 488          *
 489          * This is still a good approximation of how a test for MANAGER_SYSTEM
 490          * would work.
 491          */
 492         assert_se(setenv("VAR1", "word1 word2", 1) == 0);
 493         assert_se(setenv("VAR2", "word3", 1) == 0);
 494         assert_se(setenv("VAR3", "$word 5 6", 1) == 0);
 495         assert_se(setenv("VAR4", "new\nline", 1) == 0);
 496         assert_se(setenv("VAR5", "passwordwithbackslashes", 1) == 0);
 497         test(m, "exec-passenvironment.service", 0, CLD_EXITED);
 498         test(m, "exec-passenvironment-repeated.service", 0, CLD_EXITED);
 499         test(m, "exec-passenvironment-empty.service", 0, CLD_EXITED);
 500         assert_se(unsetenv("VAR1") == 0);
 501         assert_se(unsetenv("VAR2") == 0);
 502         assert_se(unsetenv("VAR3") == 0);
 503         assert_se(unsetenv("VAR4") == 0);
 504         assert_se(unsetenv("VAR5") == 0);
 505         test(m, "exec-passenvironment-absent.service", 0, CLD_EXITED);
 506 }
 507
 508 static void test_exec_umask(Manager *m) {
 509         test(m, "exec-umask-default.service", 0, CLD_EXITED);
 510         test(m, "exec-umask-0177.service", 0, CLD_EXITED);
 511 }
 512
 513 static void test_exec_runtimedirectory(Manager *m) {
 514         test(m, "exec-runtimedirectory.service", 0, CLD_EXITED);
 515         test(m, "exec-runtimedirectory-mode.service", 0, CLD_EXITED);
 516         test(m, "exec-runtimedirectory-owner.service", 0, CLD_EXITED);
 517
 518         if (!check_nobody_user_and_group()) {
 519                 log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__);
 520                 return;
 521         }
 522
 523         if (!STR_IN_SET(NOBODY_GROUP_NAME, "nobody", "nfsnobody", "nogroup")) {
 524                 log_notice("Unsupported nobody group name '%s', skipping remaining tests in %s", NOBODY_GROUP_NAME, __func__);
 525                 return;
 526         }
 527
 528         test(m, "exec-runtimedirectory-owner-" NOBODY_GROUP_NAME ".service", 0, CLD_EXITED);
 529 }
 530
 531 static void test_exec_capabilityboundingset(Manager *m) {
 532         int r;
 533
 534         r = find_binary("capsh", NULL);
 535         if (r < 0) {
 536                 log_notice_errno(r, "Skipping %s, could not find capsh binary: %m", __func__);
 537                 return;
 538         }
 539
 540         if (have_effective_cap(CAP_CHOWN) <= 0 ||
 541             have_effective_cap(CAP_FOWNER) <= 0 ||
 542             have_effective_cap(CAP_KILL) <= 0) {
 543                 log_notice("Skipping %s, this process does not have enough capabilities", __func__);
 544                 return;
 545         }
 546
 547         test(m, "exec-capabilityboundingset-simple.service", 0, CLD_EXITED);
 548         test(m, "exec-capabilityboundingset-reset.service", 0, CLD_EXITED);
 549         test(m, "exec-capabilityboundingset-merge.service", 0, CLD_EXITED);
 550         test(m, "exec-capabilityboundingset-invert.service", 0, CLD_EXITED);
 551 }
 552
 553 static void test_exec_basic(Manager *m) {
 554         test(m, "exec-basic.service", 0, CLD_EXITED);
 555 }
 556
 557 static void test_exec_ambientcapabilities(Manager *m) {
 558         int r;
 559
 560         /* Check if the kernel has support for ambient capabilities. Run
 561          * the tests only if that's the case. Clearing all ambient
 562          * capabilities is fine, since we are expecting them to be unset
 563          * in the first place for the tests. */
 564         r = prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_CLEAR_ALL, 0, 0, 0);
 565         if (r < 0 && IN_SET(errno, EINVAL, EOPNOTSUPP, ENOSYS)) {
 566                 log_notice("Skipping %s, the kernel does not support ambient capabilities", __func__);
 567                 return;
 568         }
 569
 570         if (have_effective_cap(CAP_CHOWN) <= 0 ||
 571             have_effective_cap(CAP_NET_RAW) <= 0) {
 572                 log_notice("Skipping %s, this process does not have enough capabilities", __func__);
 573                 return;
 574         }
 575
 576         test(m, "exec-ambientcapabilities.service", 0, CLD_EXITED);
 577         test(m, "exec-ambientcapabilities-merge.service", 0, CLD_EXITED);
 578
 579         if (!check_nobody_user_and_group()) {
 580                 log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__);
 581                 return;
 582         }
 583
 584         if (!STR_IN_SET(NOBODY_USER_NAME, "nobody", "nfsnobody")) {
 585                 log_notice("Unsupported nobody user name '%s', skipping remaining tests in %s", NOBODY_USER_NAME, __func__);
 586                 return;
 587         }
 588
 589         test(m, "exec-ambientcapabilities-" NOBODY_USER_NAME ".service", 0, CLD_EXITED);
 590         test(m, "exec-ambientcapabilities-merge-" NOBODY_USER_NAME ".service", 0, CLD_EXITED);
 591 }
 592
 593 static void test_exec_privatenetwork(Manager *m) {
 594         int r;
 595
 596         r = find_binary("ip", NULL);
 597         if (r < 0) {
 598                 log_notice_errno(r, "Skipping %s, could not find ip binary: %m", __func__);
 599                 return;
 600         }
 601
 602         test(m, "exec-privatenetwork-yes.service", 0, CLD_EXITED);
 603 }
 604
 605 static void test_exec_oomscoreadjust(Manager *m) {
 606         test(m, "exec-oomscoreadjust-positive.service", 0, CLD_EXITED);
 607         test(m, "exec-oomscoreadjust-negative.service", 0, CLD_EXITED);
 608 }
 609
 610 static void test_exec_ioschedulingclass(Manager *m) {
 611         test(m, "exec-ioschedulingclass-none.service", 0, CLD_EXITED);
 612         test(m, "exec-ioschedulingclass-idle.service", 0, CLD_EXITED);
 613         test(m, "exec-ioschedulingclass-realtime.service", 0, CLD_EXITED);
 614         test(m, "exec-ioschedulingclass-best-effort.service", 0, CLD_EXITED);
 615 }
 616
 617 static void test_exec_unsetenvironment(Manager *m) {
 618         test(m, "exec-unsetenvironment.service", 0, CLD_EXITED);
 619 }
 620
 621 static void test_exec_specifier(Manager *m) {
 622         test(m, "exec-specifier.service", 0, CLD_EXITED);
 623         test(m, "exec-specifier@foo-bar.service", 0, CLD_EXITED);
 624         test(m, "exec-specifier-interpolation.service", 0, CLD_EXITED);
 625 }
 626
 627 static void test_exec_standardinput(Manager *m) {
 628         test(m, "exec-standardinput-data.service", 0, CLD_EXITED);
 629         test(m, "exec-standardinput-file.service", 0, CLD_EXITED);
 630 }
 631
 632 static int run_tests(UnitFileScope scope, const test_function_t *tests) {
 633         const test_function_t *test = NULL;
 634         _cleanup_(manager_freep) Manager *m = NULL;
 635         int r;
 636
 637         assert_se(tests);
 638
 639         r = manager_new(scope, MANAGER_TEST_RUN_BASIC, &m);
 640         if (MANAGER_SKIP_TEST(r)) {
 641                 log_notice_errno(r, "Skipping test: manager_new: %m");
 642                 return EXIT_TEST_SKIP;
 643         }
 644         assert_se(r >= 0);
 645         assert_se(manager_startup(m, NULL, NULL) >= 0);
 646
 647         for (test = tests; test && *test; test++)
 648                 (*test)(m);
 649
 650         return 0;
 651 }
 652
 653 int main(int argc, char *argv[]) {
 654         _cleanup_(rm_rf_physical_and_freep) char *runtime_dir = NULL;
 655         static const test_function_t user_tests[] = {
 656                 test_exec_basic,
 657                 test_exec_ambientcapabilities,
 658                 test_exec_bindpaths,
 659                 test_exec_capabilityboundingset,
 660                 test_exec_cpuaffinity,
 661                 test_exec_environment,
 662                 test_exec_environmentfile,
 663                 test_exec_group,
 664                 test_exec_ignoresigpipe,
 665                 test_exec_inaccessiblepaths,
 666                 test_exec_ioschedulingclass,
 667                 test_exec_oomscoreadjust,
 668                 test_exec_passenvironment,
 669                 test_exec_personality,
 670                 test_exec_privatedevices,
 671                 test_exec_privatenetwork,
 672                 test_exec_privatetmp,
 673                 test_exec_protectkernelmodules,
 674                 test_exec_readonlypaths,
 675                 test_exec_readwritepaths,
 676                 test_exec_restrictnamespaces,
 677                 test_exec_runtimedirectory,
 678                 test_exec_standardinput,
 679                 test_exec_supplementarygroups,
 680                 test_exec_systemcallerrornumber,
 681                 test_exec_systemcallfilter,
 682                 test_exec_temporaryfilesystem,
 683                 test_exec_umask,
 684                 test_exec_unsetenvironment,
 685                 test_exec_user,
 686                 test_exec_workingdirectory,
 687                 NULL,
 688         };
 689         static const test_function_t system_tests[] = {
 690                 test_exec_dynamicuser,
 691                 test_exec_specifier,
 692                 test_exec_systemcallfilter_system,
 693                 NULL,
 694         };
 695         int r;
 696
 697         log_set_max_level(LOG_DEBUG);
 698         log_parse_environment();
 699         log_open();
 700
 701         (void) unsetenv("USER");
 702         (void) unsetenv("LOGNAME");
 703         (void) unsetenv("SHELL");
 704
 705         /* It is needed otherwise cgroup creation fails */
 706         if (getuid() != 0) {
 707                 puts("Skipping test: not root");
 708                 return EXIT_TEST_SKIP;
 709         }
 710
 711         r = enter_cgroup_subroot();
 712         if (r == -ENOMEDIUM) {
 713                 puts("Skipping test: cgroupfs not available");
 714                 return EXIT_TEST_SKIP;
 715         }
 716
 717         assert_se(runtime_dir = setup_fake_runtime_dir());
 718         assert_se(set_unit_path(get_testdata_dir("/test-execute")) >= 0);
 719
 720         /* Unset VAR1, VAR2 and VAR3 which are used in the PassEnvironment test
 721          * cases, otherwise (and if they are present in the environment),
 722          * `manager_default_environment` will copy them into the default
 723          * environment which is passed to each created job, which will make the
 724          * tests that expect those not to be present to fail.
 725          */
 726         assert_se(unsetenv("VAR1") == 0);
 727         assert_se(unsetenv("VAR2") == 0);
 728         assert_se(unsetenv("VAR3") == 0);
 729
 730         r = run_tests(UNIT_FILE_USER, user_tests);
 731         if (r != 0)
 732                 return r;
 733
 734         return run_tests(UNIT_FILE_SYSTEM, system_tests);
 735 }