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Merge pull request #14968 from keszybz/docs
[thirdparty/systemd.git] / src / test / test-execute.c
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1/* SPDX-License-Identifier: LGPL-2.1+ */
2
3#include <stdio.h>
4#include <sys/prctl.h>
5#include <sys/types.h>
6
7#include "capability-util.h"
8#include "cpu-set-util.h"
9#include "errno-list.h"
10#include "fileio.h"
11#include "fs-util.h"
12#include "macro.h"
13#include "manager.h"
14#include "missing_prctl.h"
15#include "mkdir.h"
16#include "path-util.h"
17#include "rm-rf.h"
18#if HAVE_SECCOMP
19#include "seccomp-util.h"
20#endif
21#include "service.h"
22#include "stat-util.h"
23#include "tests.h"
24#include "unit.h"
25#include "user-util.h"
26#include "util.h"
27#include "virt.h"
28
29static bool can_unshare;
30
31typedef void (*test_function_t)(Manager *m);
32
33static int cld_dumped_to_killed(int code) {
34 /* Depending on the system, seccomp version, … some signals might result in dumping, others in plain
35 * killing. Let's ignore the difference here, and map both cases to CLD_KILLED */
36 return code == CLD_DUMPED ? CLD_KILLED : code;
37}
38
39_unused_ static bool is_run_on_travis_ci(void) {
40 /* https://docs.travis-ci.com/user/environment-variables#default-environment-variables */
41 return streq_ptr(getenv("TRAVIS"), "true");
42}
43
44static void wait_for_service_finish(Manager *m, Unit *unit) {
45 Service *service = NULL;
46 usec_t ts;
47 usec_t timeout = 2 * USEC_PER_MINUTE;
48
49 assert_se(m);
50 assert_se(unit);
51
52 service = SERVICE(unit);
53 printf("%s\n", unit->id);
54 exec_context_dump(&service->exec_context, stdout, "\t");
55 ts = now(CLOCK_MONOTONIC);
56 while (!IN_SET(service->state, SERVICE_DEAD, SERVICE_FAILED)) {
57 int r;
58 usec_t n;
59
60 r = sd_event_run(m->event, 100 * USEC_PER_MSEC);
61 assert_se(r >= 0);
62
63 n = now(CLOCK_MONOTONIC);
64 if (ts + timeout < n) {
65 log_error("Test timeout when testing %s", unit->id);
66 r = unit_kill(unit, KILL_ALL, SIGKILL, NULL);
67 if (r < 0)
68 log_error_errno(r, "Failed to kill %s: %m", unit->id);
69 exit(EXIT_FAILURE);
70 }
71 }
72}
73
74static void check_main_result(const char *func, Manager *m, Unit *unit, int status_expected, int code_expected) {
75 Service *service = NULL;
76
77 assert_se(m);
78 assert_se(unit);
79
80 wait_for_service_finish(m, unit);
81
82 service = SERVICE(unit);
83 exec_status_dump(&service->main_exec_status, stdout, "\t");
84
85 if (cld_dumped_to_killed(service->main_exec_status.code) != cld_dumped_to_killed(code_expected)) {
86 log_error("%s: %s: exit code %d, expected %d",
87 func, unit->id,
88 service->main_exec_status.code, code_expected);
89 abort();
90 }
91
92 if (service->main_exec_status.status != status_expected) {
93 log_error("%s: %s: exit status %d, expected %d",
94 func, unit->id,
95 service->main_exec_status.status, status_expected);
96 abort();
97 }
98}
99
100static void check_service_result(const char *func, Manager *m, Unit *unit, ServiceResult result_expected) {
101 Service *service = NULL;
102
103 assert_se(m);
104 assert_se(unit);
105
106 wait_for_service_finish(m, unit);
107
108 service = SERVICE(unit);
109
110 if (service->result != result_expected) {
111 log_error("%s: %s: service end result %s, expected %s",
112 func, unit->id,
113 service_result_to_string(service->result),
114 service_result_to_string(result_expected));
115 abort();
116 }
117}
118
119static bool check_nobody_user_and_group(void) {
120 static int cache = -1;
121 struct passwd *p;
122 struct group *g;
123
124 if (cache >= 0)
125 return !!cache;
126
127 if (!synthesize_nobody())
128 goto invalid;
129
130 p = getpwnam(NOBODY_USER_NAME);
131 if (!p ||
132 !streq(p->pw_name, NOBODY_USER_NAME) ||
133 p->pw_uid != UID_NOBODY ||
134 p->pw_gid != GID_NOBODY)
135 goto invalid;
136
137 p = getpwuid(UID_NOBODY);
138 if (!p ||
139 !streq(p->pw_name, NOBODY_USER_NAME) ||
140 p->pw_uid != UID_NOBODY ||
141 p->pw_gid != GID_NOBODY)
142 goto invalid;
143
144 g = getgrnam(NOBODY_GROUP_NAME);
145 if (!g ||
146 !streq(g->gr_name, NOBODY_GROUP_NAME) ||
147 g->gr_gid != GID_NOBODY)
148 goto invalid;
149
150 g = getgrgid(GID_NOBODY);
151 if (!g ||
152 !streq(g->gr_name, NOBODY_GROUP_NAME) ||
153 g->gr_gid != GID_NOBODY)
154 goto invalid;
155
156 cache = 1;
157 return true;
158
159invalid:
160 cache = 0;
161 return false;
162}
163
164static bool check_user_has_group_with_same_name(const char *name) {
165 struct passwd *p;
166 struct group *g;
167
168 assert(name);
169
170 p = getpwnam(name);
171 if (!p ||
172 !streq(p->pw_name, name))
173 return false;
174
175 g = getgrgid(p->pw_gid);
176 if (!g ||
177 !streq(g->gr_name, name))
178 return false;
179
180 return true;
181}
182
183static bool is_inaccessible_available(void) {
184 const char *p;
185
186 FOREACH_STRING(p,
187 "/run/systemd/inaccessible/reg",
188 "/run/systemd/inaccessible/dir",
189 "/run/systemd/inaccessible/chr",
190 "/run/systemd/inaccessible/blk",
191 "/run/systemd/inaccessible/fifo",
192 "/run/systemd/inaccessible/sock"
193 ) {
194 if (access(p, F_OK) < 0)
195 return false;
196 }
197
198 return true;
199}
200
201static void test(const char *func, Manager *m, const char *unit_name, int status_expected, int code_expected) {
202 Unit *unit;
203
204 assert_se(unit_name);
205
206 assert_se(manager_load_startable_unit_or_warn(m, unit_name, NULL, &unit) >= 0);
207 assert_se(unit_start(unit) >= 0);
208 check_main_result(func, m, unit, status_expected, code_expected);
209}
210
211static void test_service(const char *func, Manager *m, const char *unit_name, ServiceResult result_expected) {
212 Unit *unit;
213
214 assert_se(unit_name);
215
216 assert_se(manager_load_startable_unit_or_warn(m, unit_name, NULL, &unit) >= 0);
217 assert_se(unit_start(unit) >= 0);
218 check_service_result(func, m, unit, result_expected);
219}
220
221static void test_exec_bindpaths(Manager *m) {
222 assert_se(mkdir_p("/tmp/test-exec-bindpaths", 0755) >= 0);
223 assert_se(mkdir_p("/tmp/test-exec-bindreadonlypaths", 0755) >= 0);
224
225 test(__func__, m, "exec-bindpaths.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);
226
227 (void) rm_rf("/tmp/test-exec-bindpaths", REMOVE_ROOT|REMOVE_PHYSICAL);
228 (void) rm_rf("/tmp/test-exec-bindreadonlypaths", REMOVE_ROOT|REMOVE_PHYSICAL);
229}
230
231static void test_exec_cpuaffinity(Manager *m) {
232 _cleanup_(cpu_set_reset) CPUSet c = {};
233
234 assert_se(cpu_set_realloc(&c, 8192) >= 0); /* just allocate the maximum possible size */
235 assert_se(sched_getaffinity(0, c.allocated, c.set) >= 0);
236
237 if (!CPU_ISSET_S(0, c.allocated, c.set)) {
238 log_notice("Cannot use CPU 0, skipping %s", __func__);
239 return;
240 }
241
242 test(__func__, m, "exec-cpuaffinity1.service", 0, CLD_EXITED);
243 test(__func__, m, "exec-cpuaffinity2.service", 0, CLD_EXITED);
244
245 if (!CPU_ISSET_S(1, c.allocated, c.set) ||
246 !CPU_ISSET_S(2, c.allocated, c.set)) {
247 log_notice("Cannot use CPU 1 or 2, skipping remaining tests in %s", __func__);
248 return;
249 }
250
251 test(__func__, m, "exec-cpuaffinity3.service", 0, CLD_EXITED);
252}
253
254static void test_exec_workingdirectory(Manager *m) {
255 assert_se(mkdir_p("/tmp/test-exec_workingdirectory", 0755) >= 0);
256
257 test(__func__, m, "exec-workingdirectory.service", 0, CLD_EXITED);
258 test(__func__, m, "exec-workingdirectory-trailing-dot.service", 0, CLD_EXITED);
259
260 (void) rm_rf("/tmp/test-exec_workingdirectory", REMOVE_ROOT|REMOVE_PHYSICAL);
261}
262
263static void test_exec_personality(Manager *m) {
264#if defined(__x86_64__)
265 test(__func__, m, "exec-personality-x86-64.service", 0, CLD_EXITED);
266
267#elif defined(__s390__)
268 test(__func__, m, "exec-personality-s390.service", 0, CLD_EXITED);
269
270#elif defined(__powerpc64__)
271# if __BYTE_ORDER == __BIG_ENDIAN
272 test(__func__, m, "exec-personality-ppc64.service", 0, CLD_EXITED);
273# else
274 test(__func__, m, "exec-personality-ppc64le.service", 0, CLD_EXITED);
275# endif
276
277#elif defined(__aarch64__)
278 test(__func__, m, "exec-personality-aarch64.service", 0, CLD_EXITED);
279
280#elif defined(__i386__)
281 test(__func__, m, "exec-personality-x86.service", 0, CLD_EXITED);
282#else
283 log_notice("Unknown personality, skipping %s", __func__);
284#endif
285}
286
287static void test_exec_ignoresigpipe(Manager *m) {
288 test(__func__, m, "exec-ignoresigpipe-yes.service", 0, CLD_EXITED);
289 test(__func__, m, "exec-ignoresigpipe-no.service", SIGPIPE, CLD_KILLED);
290}
291
292static void test_exec_privatetmp(Manager *m) {
293 assert_se(touch("/tmp/test-exec_privatetmp") >= 0);
294
295 test(__func__, m, "exec-privatetmp-yes.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);
296 test(__func__, m, "exec-privatetmp-no.service", 0, CLD_EXITED);
297
298 unlink("/tmp/test-exec_privatetmp");
299}
300
301static void test_exec_privatedevices(Manager *m) {
302 int r;
303
304 if (detect_container() > 0) {
305 log_notice("Testing in container, skipping %s", __func__);
306 return;
307 }
308 if (!is_inaccessible_available()) {
309 log_notice("Testing without inaccessible, skipping %s", __func__);
310 return;
311 }
312
313 test(__func__, m, "exec-privatedevices-yes.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);
314 test(__func__, m, "exec-privatedevices-no.service", 0, CLD_EXITED);
315 test(__func__, m, "exec-privatedevices-disabled-by-prefix.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);
316 test(__func__, m, "exec-privatedevices-yes-with-group.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);
317
318 /* We use capsh to test if the capabilities are
319 * properly set, so be sure that it exists */
320 r = find_binary("capsh", NULL);
321 if (r < 0) {
322 log_notice_errno(r, "Could not find capsh binary, skipping remaining tests in %s: %m", __func__);
323 return;
324 }
325
326 test(__func__, m, "exec-privatedevices-yes-capability-mknod.service", 0, CLD_EXITED);
327 test(__func__, m, "exec-privatedevices-no-capability-mknod.service", 0, CLD_EXITED);
328 test(__func__, m, "exec-privatedevices-yes-capability-sys-rawio.service", 0, CLD_EXITED);
329 test(__func__, m, "exec-privatedevices-no-capability-sys-rawio.service", 0, CLD_EXITED);
330}
331
332static void test_exec_protecthome(Manager *m) {
333 if (!can_unshare) {
334 log_notice("Cannot reliably unshare, skipping %s", __func__);
335 return;
336 }
337
338 test(__func__, m, "exec-protecthome-tmpfs-vs-protectsystem-strict.service", 0, CLD_EXITED);
339}
340
341static void test_exec_protectkernelmodules(Manager *m) {
342 int r;
343
344 if (detect_container() > 0) {
345 log_notice("Testing in container, skipping %s", __func__);
346 return;
347 }
348 if (!is_inaccessible_available()) {
349 log_notice("Testing without inaccessible, skipping %s", __func__);
350 return;
351 }
352
353 r = find_binary("capsh", NULL);
354 if (r < 0) {
355 log_notice_errno(r, "Skipping %s, could not find capsh binary: %m", __func__);
356 return;
357 }
358
359 test(__func__, m, "exec-protectkernelmodules-no-capabilities.service", 0, CLD_EXITED);
360 test(__func__, m, "exec-protectkernelmodules-yes-capabilities.service", 0, CLD_EXITED);
361 test(__func__, m, "exec-protectkernelmodules-yes-mount-propagation.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);
362}
363
364static void test_exec_readonlypaths(Manager *m) {
365
366 test(__func__, m, "exec-readonlypaths-simple.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);
367
368 if (path_is_read_only_fs("/var") > 0) {
369 log_notice("Directory /var is readonly, skipping remaining tests in %s", __func__);
370 return;
371 }
372
373 test(__func__, m, "exec-readonlypaths.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);
374 test(__func__, m, "exec-readonlypaths-with-bindpaths.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);
375 test(__func__, m, "exec-readonlypaths-mount-propagation.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);
376}
377
378static void test_exec_readwritepaths(Manager *m) {
379
380 if (path_is_read_only_fs("/") > 0) {
381 log_notice("Root directory is readonly, skipping %s", __func__);
382 return;
383 }
384
385 test(__func__, m, "exec-readwritepaths-mount-propagation.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);
386}
387
388static void test_exec_inaccessiblepaths(Manager *m) {
389
390 if (!is_inaccessible_available()) {
391 log_notice("Testing without inaccessible, skipping %s", __func__);
392 return;
393 }
394
395 test(__func__, m, "exec-inaccessiblepaths-sys.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);
396
397 if (path_is_read_only_fs("/") > 0) {
398 log_notice("Root directory is readonly, skipping remaining tests in %s", __func__);
399 return;
400 }
401
402 test(__func__, m, "exec-inaccessiblepaths-mount-propagation.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);
403}
404
405static void test_exec_temporaryfilesystem(Manager *m) {
406
407 test(__func__, m, "exec-temporaryfilesystem-options.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);
408 test(__func__, m, "exec-temporaryfilesystem-ro.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);
409 test(__func__, m, "exec-temporaryfilesystem-rw.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);
410 test(__func__, m, "exec-temporaryfilesystem-usr.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);
411}
412
413static void test_exec_systemcallfilter(Manager *m) {
414#if HAVE_SECCOMP
415 int r;
416
417 if (!is_seccomp_available()) {
418 log_notice("Seccomp not available, skipping %s", __func__);
419 return;
420 }
421
422 test(__func__, m, "exec-systemcallfilter-not-failing.service", 0, CLD_EXITED);
423 test(__func__, m, "exec-systemcallfilter-not-failing2.service", 0, CLD_EXITED);
424 test(__func__, m, "exec-systemcallfilter-failing.service", SIGSYS, CLD_KILLED);
425 test(__func__, m, "exec-systemcallfilter-failing2.service", SIGSYS, CLD_KILLED);
426
427 r = find_binary("python3", NULL);
428 if (r < 0) {
429 log_notice_errno(r, "Skipping remaining tests in %s, could not find python3 binary: %m", __func__);
430 return;
431 }
432
433 test(__func__, m, "exec-systemcallfilter-with-errno-name.service", errno_from_name("EILSEQ"), CLD_EXITED);
434 test(__func__, m, "exec-systemcallfilter-with-errno-number.service", 255, CLD_EXITED);
435 test(__func__, m, "exec-systemcallfilter-with-errno-multi.service", errno_from_name("EILSEQ"), CLD_EXITED);
436#endif
437}
438
439static void test_exec_systemcallerrornumber(Manager *m) {
440#if HAVE_SECCOMP
441 int r;
442
443 if (!is_seccomp_available()) {
444 log_notice("Seccomp not available, skipping %s", __func__);
445 return;
446 }
447
448 r = find_binary("python3", NULL);
449 if (r < 0) {
450 log_notice_errno(r, "Skipping %s, could not find python3 binary: %m", __func__);
451 return;
452 }
453
454 test(__func__, m, "exec-systemcallerrornumber-name.service", errno_from_name("EACCES"), CLD_EXITED);
455 test(__func__, m, "exec-systemcallerrornumber-number.service", 255, CLD_EXITED);
456#endif
457}
458
459static void test_exec_restrictnamespaces(Manager *m) {
460#if HAVE_SECCOMP
461 if (!is_seccomp_available()) {
462 log_notice("Seccomp not available, skipping %s", __func__);
463 return;
464 }
465
466 test(__func__, m, "exec-restrictnamespaces-no.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);
467 test(__func__, m, "exec-restrictnamespaces-yes.service", 1, CLD_EXITED);
468 test(__func__, m, "exec-restrictnamespaces-mnt.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);
469 test(__func__, m, "exec-restrictnamespaces-mnt-blacklist.service", 1, CLD_EXITED);
470 test(__func__, m, "exec-restrictnamespaces-merge-and.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);
471 test(__func__, m, "exec-restrictnamespaces-merge-or.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);
472 test(__func__, m, "exec-restrictnamespaces-merge-all.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);
473#endif
474}
475
476static void test_exec_systemcallfilter_system(Manager *m) {
477/* Skip this particular test case when running under ASan, as
478 * LSan intermittently segfaults when accessing memory right
479 * after the test finishes. Generally, ASan & LSan don't like
480 * the seccomp stuff.
481 */
482#if HAVE_SECCOMP && !HAS_FEATURE_ADDRESS_SANITIZER
483 if (!is_seccomp_available()) {
484 log_notice("Seccomp not available, skipping %s", __func__);
485 return;
486 }
487
488 test(__func__, m, "exec-systemcallfilter-system-user.service", 0, CLD_EXITED);
489
490 if (!check_nobody_user_and_group()) {
491 log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__);
492 return;
493 }
494
495 if (!STR_IN_SET(NOBODY_USER_NAME, "nobody", "nfsnobody")) {
496 log_notice("Unsupported nobody user name '%s', skipping remaining tests in %s", NOBODY_USER_NAME, __func__);
497 return;
498 }
499
500 test(__func__, m, "exec-systemcallfilter-system-user-" NOBODY_USER_NAME ".service", 0, CLD_EXITED);
501#endif
502}
503
504static void test_exec_user(Manager *m) {
505 test(__func__, m, "exec-user.service", 0, CLD_EXITED);
506
507 if (!check_nobody_user_and_group()) {
508 log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__);
509 return;
510 }
511
512 if (!STR_IN_SET(NOBODY_USER_NAME, "nobody", "nfsnobody")) {
513 log_notice("Unsupported nobody user name '%s', skipping remaining tests in %s", NOBODY_USER_NAME, __func__);
514 return;
515 }
516
517 test(__func__, m, "exec-user-" NOBODY_USER_NAME ".service", 0, CLD_EXITED);
518}
519
520static void test_exec_group(Manager *m) {
521 test(__func__, m, "exec-group.service", 0, CLD_EXITED);
522
523 if (!check_nobody_user_and_group()) {
524 log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__);
525 return;
526 }
527
528 if (!STR_IN_SET(NOBODY_GROUP_NAME, "nobody", "nfsnobody", "nogroup")) {
529 log_notice("Unsupported nobody group name '%s', skipping remaining tests in %s", NOBODY_GROUP_NAME, __func__);
530 return;
531 }
532
533 test(__func__, m, "exec-group-" NOBODY_GROUP_NAME ".service", 0, CLD_EXITED);
534}
535
536static void test_exec_supplementarygroups(Manager *m) {
537 test(__func__, m, "exec-supplementarygroups.service", 0, CLD_EXITED);
538 test(__func__, m, "exec-supplementarygroups-single-group.service", 0, CLD_EXITED);
539 test(__func__, m, "exec-supplementarygroups-single-group-user.service", 0, CLD_EXITED);
540 test(__func__, m, "exec-supplementarygroups-multiple-groups-default-group-user.service", 0, CLD_EXITED);
541 test(__func__, m, "exec-supplementarygroups-multiple-groups-withgid.service", 0, CLD_EXITED);
542 test(__func__, m, "exec-supplementarygroups-multiple-groups-withuid.service", 0, CLD_EXITED);
543}
544
545static void test_exec_dynamicuser(Manager *m) {
546
547 test(__func__, m, "exec-dynamicuser-fixeduser.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);
548 if (check_user_has_group_with_same_name("adm"))
549 test(__func__, m, "exec-dynamicuser-fixeduser-adm.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);
550 if (check_user_has_group_with_same_name("games"))
551 test(__func__, m, "exec-dynamicuser-fixeduser-games.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);
552 test(__func__, m, "exec-dynamicuser-fixeduser-one-supplementarygroup.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);
553 test(__func__, m, "exec-dynamicuser-supplementarygroups.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);
554 test(__func__, m, "exec-dynamicuser-statedir.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);
555
556 (void) rm_rf("/var/lib/test-dynamicuser-migrate", REMOVE_ROOT|REMOVE_PHYSICAL);
557 (void) rm_rf("/var/lib/test-dynamicuser-migrate2", REMOVE_ROOT|REMOVE_PHYSICAL);
558 (void) rm_rf("/var/lib/private/test-dynamicuser-migrate", REMOVE_ROOT|REMOVE_PHYSICAL);
559 (void) rm_rf("/var/lib/private/test-dynamicuser-migrate2", REMOVE_ROOT|REMOVE_PHYSICAL);
560
561 test(__func__, m, "exec-dynamicuser-statedir-migrate-step1.service", 0, CLD_EXITED);
562 test(__func__, m, "exec-dynamicuser-statedir-migrate-step2.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);
563
564 (void) rm_rf("/var/lib/test-dynamicuser-migrate", REMOVE_ROOT|REMOVE_PHYSICAL);
565 (void) rm_rf("/var/lib/test-dynamicuser-migrate2", REMOVE_ROOT|REMOVE_PHYSICAL);
566 (void) rm_rf("/var/lib/private/test-dynamicuser-migrate", REMOVE_ROOT|REMOVE_PHYSICAL);
567 (void) rm_rf("/var/lib/private/test-dynamicuser-migrate2", REMOVE_ROOT|REMOVE_PHYSICAL);
568}
569
570static void test_exec_environment(Manager *m) {
571 test(__func__, m, "exec-environment-no-substitute.service", 0, CLD_EXITED);
572 test(__func__, m, "exec-environment.service", 0, CLD_EXITED);
573 test(__func__, m, "exec-environment-multiple.service", 0, CLD_EXITED);
574 test(__func__, m, "exec-environment-empty.service", 0, CLD_EXITED);
575}
576
577static void test_exec_environmentfile(Manager *m) {
578 static const char e[] =
579 "VAR1='word1 word2'\n"
580 "VAR2=word3 \n"
581 "# comment1\n"
582 "\n"
583 "; comment2\n"
584 " ; # comment3\n"
585 "line without an equal\n"
586 "VAR3='$word 5 6'\n"
587 "VAR4='new\nline'\n"
588 "VAR5=password\\with\\backslashes";
589 int r;
590
591 r = write_string_file("/tmp/test-exec_environmentfile.conf", e, WRITE_STRING_FILE_CREATE);
592 assert_se(r == 0);
593
594 test(__func__, m, "exec-environmentfile.service", 0, CLD_EXITED);
595
596 (void) unlink("/tmp/test-exec_environmentfile.conf");
597}
598
599static void test_exec_passenvironment(Manager *m) {
600 /* test-execute runs under MANAGER_USER which, by default, forwards all
601 * variables present in the environment, but only those that are
602 * present _at the time it is created_!
603 *
604 * So these PassEnvironment checks are still expected to work, since we
605 * are ensuring the variables are not present at manager creation (they
606 * are unset explicitly in main) and are only set here.
607 *
608 * This is still a good approximation of how a test for MANAGER_SYSTEM
609 * would work.
610 */
611 assert_se(setenv("VAR1", "word1 word2", 1) == 0);
612 assert_se(setenv("VAR2", "word3", 1) == 0);
613 assert_se(setenv("VAR3", "$word 5 6", 1) == 0);
614 assert_se(setenv("VAR4", "new\nline", 1) == 0);
615 assert_se(setenv("VAR5", "passwordwithbackslashes", 1) == 0);
616 test(__func__, m, "exec-passenvironment.service", 0, CLD_EXITED);
617 test(__func__, m, "exec-passenvironment-repeated.service", 0, CLD_EXITED);
618 test(__func__, m, "exec-passenvironment-empty.service", 0, CLD_EXITED);
619 assert_se(unsetenv("VAR1") == 0);
620 assert_se(unsetenv("VAR2") == 0);
621 assert_se(unsetenv("VAR3") == 0);
622 assert_se(unsetenv("VAR4") == 0);
623 assert_se(unsetenv("VAR5") == 0);
624 test(__func__, m, "exec-passenvironment-absent.service", 0, CLD_EXITED);
625}
626
627static void test_exec_umask(Manager *m) {
628 test(__func__, m, "exec-umask-default.service", 0, CLD_EXITED);
629 test(__func__, m, "exec-umask-0177.service", 0, CLD_EXITED);
630}
631
632static void test_exec_runtimedirectory(Manager *m) {
633 test(__func__, m, "exec-runtimedirectory.service", 0, CLD_EXITED);
634 test(__func__, m, "exec-runtimedirectory-mode.service", 0, CLD_EXITED);
635 test(__func__, m, "exec-runtimedirectory-owner.service", 0, CLD_EXITED);
636
637 if (!check_nobody_user_and_group()) {
638 log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__);
639 return;
640 }
641
642 if (!STR_IN_SET(NOBODY_GROUP_NAME, "nobody", "nfsnobody", "nogroup")) {
643 log_notice("Unsupported nobody group name '%s', skipping remaining tests in %s", NOBODY_GROUP_NAME, __func__);
644 return;
645 }
646
647 test(__func__, m, "exec-runtimedirectory-owner-" NOBODY_GROUP_NAME ".service", 0, CLD_EXITED);
648}
649
650static void test_exec_capabilityboundingset(Manager *m) {
651 int r;
652
653 r = find_binary("capsh", NULL);
654 if (r < 0) {
655 log_notice_errno(r, "Skipping %s, could not find capsh binary: %m", __func__);
656 return;
657 }
658
659 if (have_effective_cap(CAP_CHOWN) <= 0 ||
660 have_effective_cap(CAP_FOWNER) <= 0 ||
661 have_effective_cap(CAP_KILL) <= 0) {
662 log_notice("Skipping %s, this process does not have enough capabilities", __func__);
663 return;
664 }
665
666 test(__func__, m, "exec-capabilityboundingset-simple.service", 0, CLD_EXITED);
667 test(__func__, m, "exec-capabilityboundingset-reset.service", 0, CLD_EXITED);
668 test(__func__, m, "exec-capabilityboundingset-merge.service", 0, CLD_EXITED);
669 test(__func__, m, "exec-capabilityboundingset-invert.service", 0, CLD_EXITED);
670}
671
672static void test_exec_basic(Manager *m) {
673 test(__func__, m, "exec-basic.service", 0, CLD_EXITED);
674}
675
676static void test_exec_ambientcapabilities(Manager *m) {
677 int r;
678
679 /* Check if the kernel has support for ambient capabilities. Run
680 * the tests only if that's the case. Clearing all ambient
681 * capabilities is fine, since we are expecting them to be unset
682 * in the first place for the tests. */
683 r = prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_CLEAR_ALL, 0, 0, 0);
684 if (r < 0 && IN_SET(errno, EINVAL, EOPNOTSUPP, ENOSYS)) {
685 log_notice("Skipping %s, the kernel does not support ambient capabilities", __func__);
686 return;
687 }
688
689 if (have_effective_cap(CAP_CHOWN) <= 0 ||
690 have_effective_cap(CAP_NET_RAW) <= 0) {
691 log_notice("Skipping %s, this process does not have enough capabilities", __func__);
692 return;
693 }
694
695 test(__func__, m, "exec-ambientcapabilities.service", 0, CLD_EXITED);
696 test(__func__, m, "exec-ambientcapabilities-merge.service", 0, CLD_EXITED);
697
698 if (!check_nobody_user_and_group()) {
699 log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__);
700 return;
701 }
702
703 if (!STR_IN_SET(NOBODY_USER_NAME, "nobody", "nfsnobody")) {
704 log_notice("Unsupported nobody user name '%s', skipping remaining tests in %s", NOBODY_USER_NAME, __func__);
705 return;
706 }
707
708 test(__func__, m, "exec-ambientcapabilities-" NOBODY_USER_NAME ".service", 0, CLD_EXITED);
709 test(__func__, m, "exec-ambientcapabilities-merge-" NOBODY_USER_NAME ".service", 0, CLD_EXITED);
710}
711
712static void test_exec_privatenetwork(Manager *m) {
713 int r;
714
715 r = find_binary("ip", NULL);
716 if (r < 0) {
717 log_notice_errno(r, "Skipping %s, could not find ip binary: %m", __func__);
718 return;
719 }
720
721 test(__func__, m, "exec-privatenetwork-yes.service", can_unshare ? 0 : EXIT_NETWORK, CLD_EXITED);
722}
723
724static void test_exec_oomscoreadjust(Manager *m) {
725 test(__func__, m, "exec-oomscoreadjust-positive.service", 0, CLD_EXITED);
726
727 if (detect_container() > 0) {
728 log_notice("Testing in container, skipping remaining tests in %s", __func__);
729 return;
730 }
731 test(__func__, m, "exec-oomscoreadjust-negative.service", 0, CLD_EXITED);
732}
733
734static void test_exec_ioschedulingclass(Manager *m) {
735 test(__func__, m, "exec-ioschedulingclass-none.service", 0, CLD_EXITED);
736 test(__func__, m, "exec-ioschedulingclass-idle.service", 0, CLD_EXITED);
737 test(__func__, m, "exec-ioschedulingclass-best-effort.service", 0, CLD_EXITED);
738
739 if (detect_container() > 0) {
740 log_notice("Testing in container, skipping remaining tests in %s", __func__);
741 return;
742 }
743 test(__func__, m, "exec-ioschedulingclass-realtime.service", 0, CLD_EXITED);
744}
745
746static void test_exec_unsetenvironment(Manager *m) {
747 test(__func__, m, "exec-unsetenvironment.service", 0, CLD_EXITED);
748}
749
750static void test_exec_specifier(Manager *m) {
751 test(__func__, m, "exec-specifier.service", 0, CLD_EXITED);
752 test(__func__, m, "exec-specifier@foo-bar.service", 0, CLD_EXITED);
753 test(__func__, m, "exec-specifier-interpolation.service", 0, CLD_EXITED);
754}
755
756static void test_exec_standardinput(Manager *m) {
757 test(__func__, m, "exec-standardinput-data.service", 0, CLD_EXITED);
758 test(__func__, m, "exec-standardinput-file.service", 0, CLD_EXITED);
759 test(__func__, m, "exec-standardinput-file-cat.service", 0, CLD_EXITED);
760}
761
762static void test_exec_standardoutput(Manager *m) {
763 test(__func__, m, "exec-standardoutput-file.service", 0, CLD_EXITED);
764}
765
766static void test_exec_standardoutput_append(Manager *m) {
767 test(__func__, m, "exec-standardoutput-append.service", 0, CLD_EXITED);
768}
769
770static void test_exec_condition(Manager *m) {
771 test_service(__func__, m, "exec-condition-failed.service", SERVICE_FAILURE_EXIT_CODE);
772 test_service(__func__, m, "exec-condition-skip.service", SERVICE_SKIP_CONDITION);
773}
774
775typedef struct test_entry {
776 test_function_t f;
777 const char *name;
778} test_entry;
779
780#define entry(x) {x, #x}
781
782static int run_tests(UnitFileScope scope, const test_entry tests[], char **patterns) {
783 const test_entry *test = NULL;
784 _cleanup_(manager_freep) Manager *m = NULL;
785 int r;
786
787 assert_se(tests);
788
789 r = manager_new(scope, MANAGER_TEST_RUN_BASIC, &m);
790 m->default_std_output = EXEC_OUTPUT_NULL; /* don't rely on host journald */
791 if (manager_errno_skip_test(r))
792 return log_tests_skipped_errno(r, "manager_new");
793 assert_se(r >= 0);
794 assert_se(manager_startup(m, NULL, NULL) >= 0);
795
796 for (test = tests; test && test->f; test++)
797 if (strv_fnmatch_or_empty(patterns, test->name, FNM_NOESCAPE))
798 test->f(m);
799 else
800 log_info("Skipping %s because it does not match any pattern.", test->name);
801
802 return 0;
803}
804
805int main(int argc, char *argv[]) {
806 _cleanup_(rm_rf_physical_and_freep) char *runtime_dir = NULL;
807 _cleanup_free_ char *test_execute_path = NULL;
808
809 static const test_entry user_tests[] = {
810 entry(test_exec_basic),
811 entry(test_exec_ambientcapabilities),
812 entry(test_exec_bindpaths),
813 entry(test_exec_capabilityboundingset),
814 entry(test_exec_condition),
815 entry(test_exec_cpuaffinity),
816 entry(test_exec_environment),
817 entry(test_exec_environmentfile),
818 entry(test_exec_group),
819 entry(test_exec_ignoresigpipe),
820 entry(test_exec_inaccessiblepaths),
821 entry(test_exec_ioschedulingclass),
822 entry(test_exec_oomscoreadjust),
823 entry(test_exec_passenvironment),
824 entry(test_exec_personality),
825 entry(test_exec_privatedevices),
826 entry(test_exec_privatenetwork),
827 entry(test_exec_privatetmp),
828 entry(test_exec_protecthome),
829 entry(test_exec_protectkernelmodules),
830 entry(test_exec_readonlypaths),
831 entry(test_exec_readwritepaths),
832 entry(test_exec_restrictnamespaces),
833 entry(test_exec_runtimedirectory),
834 entry(test_exec_standardinput),
835 entry(test_exec_standardoutput),
836 entry(test_exec_standardoutput_append),
837 entry(test_exec_supplementarygroups),
838 entry(test_exec_systemcallerrornumber),
839 entry(test_exec_systemcallfilter),
840 entry(test_exec_temporaryfilesystem),
841 entry(test_exec_umask),
842 entry(test_exec_unsetenvironment),
843 entry(test_exec_user),
844 entry(test_exec_workingdirectory),
845 {},
846 };
847 static const test_entry system_tests[] = {
848 entry(test_exec_dynamicuser),
849 entry(test_exec_specifier),
850 entry(test_exec_systemcallfilter_system),
851 {},
852 };
853 int r;
854
855 test_setup_logging(LOG_DEBUG);
856
857#if HAS_FEATURE_ADDRESS_SANITIZER
858 if (is_run_on_travis_ci()) {
859 log_notice("Running on TravisCI under ASan, skipping, see https://github.com/systemd/systemd/issues/10696");
860 return EXIT_TEST_SKIP;
861 }
862#endif
863
864 (void) unsetenv("USER");
865 (void) unsetenv("LOGNAME");
866 (void) unsetenv("SHELL");
867 (void) unsetenv("HOME");
868
869 can_unshare = have_namespaces();
870
871 /* It is needed otherwise cgroup creation fails */
872 if (getuid() != 0)
873 return log_tests_skipped("not root");
874
875 r = enter_cgroup_subroot(NULL);
876 if (r == -ENOMEDIUM)
877 return log_tests_skipped("cgroupfs not available");
878
879 assert_se(runtime_dir = setup_fake_runtime_dir());
880 test_execute_path = path_join(get_testdata_dir(), "test-execute");
881 assert_se(set_unit_path(test_execute_path) >= 0);
882
883 /* Unset VAR1, VAR2 and VAR3 which are used in the PassEnvironment test
884 * cases, otherwise (and if they are present in the environment),
885 * `manager_default_environment` will copy them into the default
886 * environment which is passed to each created job, which will make the
887 * tests that expect those not to be present to fail.
888 */
889 assert_se(unsetenv("VAR1") == 0);
890 assert_se(unsetenv("VAR2") == 0);
891 assert_se(unsetenv("VAR3") == 0);
892
893 r = run_tests(UNIT_FILE_USER, user_tests, argv + 1);
894 if (r != 0)
895 return r;
896
897 r = run_tests(UNIT_FILE_SYSTEM, system_tests, argv + 1);
898 if (r != 0)
899 return r;
900
901#if HAVE_SECCOMP
902 /* The following tests are for 1beab8b0d0ff2d7d1436b52d4a0c3d56dc908962. */
903 if (!is_seccomp_available()) {
904 log_notice("Seccomp not available, skipping unshare() filtered tests.");
905 return 0;
906 }
907
908 _cleanup_hashmap_free_ Hashmap *s = NULL;
909 assert_se(s = hashmap_new(NULL));
910 r = seccomp_syscall_resolve_name("unshare");
911 assert_se(r != __NR_SCMP_ERROR);
912 assert_se(hashmap_put(s, UINT32_TO_PTR(r + 1), INT_TO_PTR(-1)) >= 0);
913 assert_se(seccomp_load_syscall_filter_set_raw(SCMP_ACT_ALLOW, s, SCMP_ACT_ERRNO(EOPNOTSUPP), true) >= 0);
914 assert_se(unshare(CLONE_NEWNS) < 0);
915 assert_se(errno == EOPNOTSUPP);
916
917 can_unshare = false;
918
919 r = run_tests(UNIT_FILE_USER, user_tests, argv + 1);
920 if (r != 0)
921 return r;
922
923 return run_tests(UNIT_FILE_SYSTEM, system_tests, argv + 1);
924#else
925 return 0;
926#endif
927}
Unnamed repository; edit this file 'description' to name the repository.