1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
10 #include "capability-util.h"
11 #include "cpu-set-util.h"
14 #include "errno-list.h"
20 #include "missing_prctl.h"
22 #include "mount-util.h"
23 #include "path-util.h"
24 #include "process-util.h"
26 #include "seccomp-util.h"
28 #include "signal-util.h"
29 #include "static-destruct.h"
30 #include "stat-util.h"
32 #include "tmpfile-util.h"
34 #include "user-util.h"
37 #define PRIVATE_UNIT_DIR "/run/test-execute-unit-dir"
39 static char *user_runtime_unit_dir
= NULL
;
40 static bool can_unshare
;
41 static unsigned n_ran_tests
= 0;
43 STATIC_DESTRUCTOR_REGISTER(user_runtime_unit_dir
, freep
);
45 typedef void (*test_function_t
)(Manager
*m
);
47 static int cld_dumped_to_killed(int code
) {
48 /* Depending on the system, seccomp version, … some signals might result in dumping, others in plain
49 * killing. Let's ignore the difference here, and map both cases to CLD_KILLED */
50 return code
== CLD_DUMPED
? CLD_KILLED
: code
;
53 static void wait_for_service_finish(Manager
*m
, Unit
*unit
) {
54 Service
*service
= NULL
;
56 usec_t timeout
= 2 * USEC_PER_MINUTE
;
61 service
= SERVICE(unit
);
62 printf("%s\n", unit
->id
);
63 exec_context_dump(&service
->exec_context
, stdout
, "\t");
64 ts
= now(CLOCK_MONOTONIC
);
65 while (!IN_SET(service
->state
, SERVICE_DEAD
, SERVICE_FAILED
)) {
69 r
= sd_event_run(m
->event
, 100 * USEC_PER_MSEC
);
72 n
= now(CLOCK_MONOTONIC
);
73 if (ts
+ timeout
< n
) {
74 log_error("Test timeout when testing %s", unit
->id
);
75 r
= unit_kill(unit
, KILL_ALL
, SIGKILL
, SI_USER
, 0, NULL
);
77 log_error_errno(r
, "Failed to kill %s: %m", unit
->id
);
83 static void check_main_result(const char *file
, unsigned line
, const char *func
,
84 Manager
*m
, Unit
*unit
, int status_expected
, int code_expected
) {
85 Service
*service
= NULL
;
90 wait_for_service_finish(m
, unit
);
92 service
= SERVICE(unit
);
93 exec_status_dump(&service
->main_exec_status
, stdout
, "\t");
95 if (cld_dumped_to_killed(service
->main_exec_status
.code
) != cld_dumped_to_killed(code_expected
)) {
96 log_error("%s:%u:%s %s: can_unshare=%s: exit code %d, expected %d",
97 file
, line
, func
, unit
->id
, yes_no(can_unshare
),
98 service
->main_exec_status
.code
, code_expected
);
102 if (service
->main_exec_status
.status
!= status_expected
) {
103 log_error("%s:%u:%s: %s: can_unshare=%s: exit status %d, expected %d",
104 file
, line
, func
, unit
->id
, yes_no(can_unshare
),
105 service
->main_exec_status
.status
, status_expected
);
110 static void check_service_result(const char *file
, unsigned line
, const char *func
,
111 Manager
*m
, Unit
*unit
, ServiceResult result_expected
) {
112 Service
*service
= NULL
;
117 wait_for_service_finish(m
, unit
);
119 service
= SERVICE(unit
);
121 if (service
->result
!= result_expected
) {
122 log_error("%s:%u:%s: %s: can_unshare=%s: service end result %s, expected %s",
123 file
, line
, func
, unit
->id
, yes_no(can_unshare
),
124 service_result_to_string(service
->result
),
125 service_result_to_string(result_expected
));
130 static bool check_nobody_user_and_group(void) {
131 static int cache
= -1;
138 if (!synthesize_nobody())
141 p
= getpwnam(NOBODY_USER_NAME
);
143 !streq(p
->pw_name
, NOBODY_USER_NAME
) ||
144 p
->pw_uid
!= UID_NOBODY
||
145 p
->pw_gid
!= GID_NOBODY
)
148 p
= getpwuid(UID_NOBODY
);
150 !streq(p
->pw_name
, NOBODY_USER_NAME
) ||
151 p
->pw_uid
!= UID_NOBODY
||
152 p
->pw_gid
!= GID_NOBODY
)
155 g
= getgrnam(NOBODY_GROUP_NAME
);
157 !streq(g
->gr_name
, NOBODY_GROUP_NAME
) ||
158 g
->gr_gid
!= GID_NOBODY
)
161 g
= getgrgid(GID_NOBODY
);
163 !streq(g
->gr_name
, NOBODY_GROUP_NAME
) ||
164 g
->gr_gid
!= GID_NOBODY
)
175 static bool check_user_has_group_with_same_name(const char *name
) {
183 !streq(p
->pw_name
, name
))
186 g
= getgrgid(p
->pw_gid
);
188 !streq(g
->gr_name
, name
))
194 static bool is_inaccessible_available(void) {
196 "/run/systemd/inaccessible/reg",
197 "/run/systemd/inaccessible/dir",
198 "/run/systemd/inaccessible/chr",
199 "/run/systemd/inaccessible/blk",
200 "/run/systemd/inaccessible/fifo",
201 "/run/systemd/inaccessible/sock")
202 if (access(p
, F_OK
) < 0)
208 static void start_parent_slices(Unit
*unit
) {
211 slice
= UNIT_GET_SLICE(unit
);
213 start_parent_slices(slice
);
214 int r
= unit_start(slice
, NULL
);
215 assert_se(r
>= 0 || r
== -EALREADY
);
219 static void _test(const char *file
, unsigned line
, const char *func
,
220 Manager
*m
, const char *unit_name
, int status_expected
, int code_expected
) {
223 assert_se(unit_name
);
225 assert_se(manager_load_startable_unit_or_warn(m
, unit_name
, NULL
, &unit
) >= 0);
226 /* We need to start the slices as well otherwise the slice cgroups might be pruned
227 * in on_cgroup_empty_event. */
228 start_parent_slices(unit
);
229 assert_se(unit_start(unit
, NULL
) >= 0);
230 check_main_result(file
, line
, func
, m
, unit
, status_expected
, code_expected
);
234 #define test(m, unit_name, status_expected, code_expected) \
235 _test(PROJECT_FILE, __LINE__, __func__, m, unit_name, status_expected, code_expected)
237 static void _test_service(const char *file
, unsigned line
, const char *func
,
238 Manager
*m
, const char *unit_name
, ServiceResult result_expected
) {
241 assert_se(unit_name
);
243 assert_se(manager_load_startable_unit_or_warn(m
, unit_name
, NULL
, &unit
) >= 0);
244 assert_se(unit_start(unit
, NULL
) >= 0);
245 check_service_result(file
, line
, func
, m
, unit
, result_expected
);
247 #define test_service(m, unit_name, result_expected) \
248 _test_service(PROJECT_FILE, __LINE__, __func__, m, unit_name, result_expected)
250 static void test_exec_bindpaths(Manager
*m
) {
251 assert_se(mkdir_p("/tmp/test-exec-bindpaths", 0755) >= 0);
252 assert_se(mkdir_p("/tmp/test-exec-bindreadonlypaths", 0755) >= 0);
254 test(m
, "exec-bindpaths.service", can_unshare
? 0 : EXIT_NAMESPACE
, CLD_EXITED
);
256 (void) rm_rf("/tmp/test-exec-bindpaths", REMOVE_ROOT
|REMOVE_PHYSICAL
);
257 (void) rm_rf("/tmp/test-exec-bindreadonlypaths", REMOVE_ROOT
|REMOVE_PHYSICAL
);
260 static void test_exec_cpuaffinity(Manager
*m
) {
261 _cleanup_(cpu_set_reset
) CPUSet c
= {};
263 assert_se(cpu_set_realloc(&c
, 8192) >= 0); /* just allocate the maximum possible size */
264 assert_se(sched_getaffinity(0, c
.allocated
, c
.set
) >= 0);
266 if (!CPU_ISSET_S(0, c
.allocated
, c
.set
)) {
267 log_notice("Cannot use CPU 0, skipping %s", __func__
);
271 test(m
, "exec-cpuaffinity1.service", 0, CLD_EXITED
);
272 test(m
, "exec-cpuaffinity2.service", 0, CLD_EXITED
);
274 if (!CPU_ISSET_S(1, c
.allocated
, c
.set
) ||
275 !CPU_ISSET_S(2, c
.allocated
, c
.set
)) {
276 log_notice("Cannot use CPU 1 or 2, skipping remaining tests in %s", __func__
);
280 test(m
, "exec-cpuaffinity3.service", 0, CLD_EXITED
);
283 static void test_exec_credentials(Manager
*m
) {
284 test(m
, "exec-set-credential.service", 0, CLD_EXITED
);
285 test(m
, "exec-load-credential.service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_CREDENTIALS
, CLD_EXITED
);
286 test(m
, "exec-credentials-dir-specifier.service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_CREDENTIALS
, CLD_EXITED
);
289 static void test_exec_workingdirectory(Manager
*m
) {
290 assert_se(mkdir_p("/tmp/test-exec_workingdirectory", 0755) >= 0);
292 test(m
, "exec-workingdirectory.service", 0, CLD_EXITED
);
293 test(m
, "exec-workingdirectory-trailing-dot.service", 0, CLD_EXITED
);
295 (void) rm_rf("/tmp/test-exec_workingdirectory", REMOVE_ROOT
|REMOVE_PHYSICAL
);
298 static void test_exec_execsearchpath(Manager
*m
) {
299 assert_se(mkdir_p("/tmp/test-exec_execsearchpath", 0755) >= 0);
301 assert_se(copy_file("/bin/ls", "/tmp/test-exec_execsearchpath/ls_temp", 0, 0777, COPY_REPLACE
) >= 0);
303 test(m
, "exec-execsearchpath.service", 0, CLD_EXITED
);
305 assert_se(rm_rf("/tmp/test-exec_execsearchpath", REMOVE_ROOT
|REMOVE_PHYSICAL
) >= 0);
307 test(m
, "exec-execsearchpath.service", EXIT_EXEC
, CLD_EXITED
);
310 static void test_exec_execsearchpath_specifier(Manager
*m
) {
311 test(m
, "exec-execsearchpath-unit-specifier.service", 0, CLD_EXITED
);
314 static void test_exec_execsearchpath_environment(Manager
*m
) {
315 test(m
, "exec-execsearchpath-environment.service", 0, CLD_EXITED
);
316 test(m
, "exec-execsearchpath-environment-path-set.service", 0, CLD_EXITED
);
319 static void test_exec_execsearchpath_environment_files(Manager
*m
) {
320 static const char path_not_set
[] =
321 "VAR1='word1 word2'\n"
327 "line without an equal\n"
330 "VAR5=password\\with\\backslashes";
332 static const char path_set
[] =
333 "VAR1='word1 word2'\n"
339 "line without an equal\n"
342 "VAR5=password\\with\\backslashes\n"
347 r
= write_string_file("/tmp/test-exec_execsearchpath_environmentfile.conf", path_not_set
, WRITE_STRING_FILE_CREATE
);
351 test(m
, "exec-execsearchpath-environmentfile.service", 0, CLD_EXITED
);
353 (void) unlink("/tmp/test-exec_environmentfile.conf");
356 r
= write_string_file("/tmp/test-exec_execsearchpath_environmentfile-set.conf", path_set
, WRITE_STRING_FILE_CREATE
);
360 test(m
, "exec-execsearchpath-environmentfile-set.service", 0, CLD_EXITED
);
362 (void) unlink("/tmp/test-exec_environmentfile-set.conf");
365 static void test_exec_execsearchpath_passenvironment(Manager
*m
) {
366 assert_se(setenv("VAR1", "word1 word2", 1) == 0);
367 assert_se(setenv("VAR2", "word3", 1) == 0);
368 assert_se(setenv("VAR3", "$word 5 6", 1) == 0);
369 assert_se(setenv("VAR4", "new\nline", 1) == 0);
370 assert_se(setenv("VAR5", "passwordwithbackslashes", 1) == 0);
372 test(m
, "exec-execsearchpath-passenvironment.service", 0, CLD_EXITED
);
374 assert_se(setenv("PATH", "/usr", 1) == 0);
375 test(m
, "exec-execsearchpath-passenvironment-set.service", 0, CLD_EXITED
);
377 assert_se(unsetenv("VAR1") == 0);
378 assert_se(unsetenv("VAR2") == 0);
379 assert_se(unsetenv("VAR3") == 0);
380 assert_se(unsetenv("VAR4") == 0);
381 assert_se(unsetenv("VAR5") == 0);
382 assert_se(unsetenv("PATH") == 0);
385 static void test_exec_personality(Manager
*m
) {
386 #if defined(__x86_64__)
387 test(m
, "exec-personality-x86-64.service", 0, CLD_EXITED
);
389 #elif defined(__s390__)
390 test(m
, "exec-personality-s390.service", 0, CLD_EXITED
);
392 #elif defined(__powerpc64__)
393 # if __BYTE_ORDER == __BIG_ENDIAN
394 test(m
, "exec-personality-ppc64.service", 0, CLD_EXITED
);
396 test(m
, "exec-personality-ppc64le.service", 0, CLD_EXITED
);
399 #elif defined(__aarch64__)
400 test(m
, "exec-personality-aarch64.service", 0, CLD_EXITED
);
402 #elif defined(__i386__)
403 test(m
, "exec-personality-x86.service", 0, CLD_EXITED
);
404 #elif defined(__loongarch_lp64)
405 test(m
, "exec-personality-loongarch64.service", 0, CLD_EXITED
);
407 log_notice("Unknown personality, skipping %s", __func__
);
411 static void test_exec_ignoresigpipe(Manager
*m
) {
412 test(m
, "exec-ignoresigpipe-yes.service", 0, CLD_EXITED
);
413 test(m
, "exec-ignoresigpipe-no.service", SIGPIPE
, CLD_KILLED
);
416 static void test_exec_privatetmp(Manager
*m
) {
417 assert_se(touch("/tmp/test-exec_privatetmp") >= 0);
419 test(m
, "exec-privatetmp-yes.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
420 test(m
, "exec-privatetmp-no.service", 0, CLD_EXITED
);
421 test(m
, "exec-privatetmp-disabled-by-prefix.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
423 (void) unlink("/tmp/test-exec_privatetmp");
426 static void test_exec_privatedevices(Manager
*m
) {
429 if (detect_container() > 0) {
430 log_notice("Testing in container, skipping %s", __func__
);
433 if (!is_inaccessible_available()) {
434 log_notice("Testing without inaccessible, skipping %s", __func__
);
438 test(m
, "exec-privatedevices-yes.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
439 test(m
, "exec-privatedevices-no.service", 0, CLD_EXITED
);
440 test(m
, "exec-privatedevices-disabled-by-prefix.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
441 test(m
, "exec-privatedevices-yes-with-group.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
443 /* We use capsh to test if the capabilities are
444 * properly set, so be sure that it exists */
445 r
= find_executable("capsh", NULL
);
447 log_notice_errno(r
, "Could not find capsh binary, skipping remaining tests in %s: %m", __func__
);
451 test(m
, "exec-privatedevices-yes-capability-mknod.service", can_unshare
|| MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_NAMESPACE
, CLD_EXITED
);
452 test(m
, "exec-privatedevices-no-capability-mknod.service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_FAILURE
, CLD_EXITED
);
453 test(m
, "exec-privatedevices-yes-capability-sys-rawio.service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_NAMESPACE
, CLD_EXITED
);
454 test(m
, "exec-privatedevices-no-capability-sys-rawio.service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_FAILURE
, CLD_EXITED
);
457 static void test_exec_protecthome(Manager
*m
) {
459 log_notice("Cannot reliably unshare, skipping %s", __func__
);
463 test(m
, "exec-protecthome-tmpfs-vs-protectsystem-strict.service", 0, CLD_EXITED
);
466 static void test_exec_protectkernelmodules(Manager
*m
) {
469 if (detect_container() > 0) {
470 log_notice("Testing in container, skipping %s", __func__
);
473 if (!is_inaccessible_available()) {
474 log_notice("Testing without inaccessible, skipping %s", __func__
);
478 r
= find_executable("capsh", NULL
);
480 log_notice_errno(r
, "Skipping %s, could not find capsh binary: %m", __func__
);
484 test(m
, "exec-protectkernelmodules-no-capabilities.service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_FAILURE
, CLD_EXITED
);
485 test(m
, "exec-protectkernelmodules-yes-capabilities.service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_NAMESPACE
, CLD_EXITED
);
486 test(m
, "exec-protectkernelmodules-yes-mount-propagation.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
489 static void test_exec_readonlypaths(Manager
*m
) {
491 test(m
, "exec-readonlypaths-simple.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
493 if (path_is_read_only_fs("/var") > 0) {
494 log_notice("Directory /var is readonly, skipping remaining tests in %s", __func__
);
498 test(m
, "exec-readonlypaths.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
499 test(m
, "exec-readonlypaths-with-bindpaths.service", can_unshare
? 0 : EXIT_NAMESPACE
, CLD_EXITED
);
500 test(m
, "exec-readonlypaths-mount-propagation.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
503 static void test_exec_readwritepaths(Manager
*m
) {
505 if (path_is_read_only_fs("/") > 0) {
506 log_notice("Root directory is readonly, skipping %s", __func__
);
510 test(m
, "exec-readwritepaths-mount-propagation.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
513 static void test_exec_inaccessiblepaths(Manager
*m
) {
515 if (!is_inaccessible_available()) {
516 log_notice("Testing without inaccessible, skipping %s", __func__
);
520 test(m
, "exec-inaccessiblepaths-sys.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
522 if (path_is_read_only_fs("/") > 0) {
523 log_notice("Root directory is readonly, skipping remaining tests in %s", __func__
);
527 test(m
, "exec-inaccessiblepaths-mount-propagation.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
530 static int on_spawn_io(sd_event_source
*s
, int fd
, uint32_t revents
, void *userdata
) {
531 char **result
= userdata
;
538 l
= read(fd
, buf
, sizeof(buf
) - 1);
550 assert_se(strextend(result
, buf
));
552 log_error("ldd: %s", buf
);
555 /* Re-enable the event source if we did not encounter EOF */
556 assert_se(sd_event_source_set_enabled(s
, SD_EVENT_ONESHOT
) >= 0);
560 static int on_spawn_timeout(sd_event_source
*s
, uint64_t usec
, void *userdata
) {
561 pid_t
*pid
= userdata
;
565 (void) kill(*pid
, SIGKILL
);
570 static int on_spawn_sigchld(sd_event_source
*s
, const siginfo_t
*si
, void *userdata
) {
575 if (si
->si_code
== CLD_EXITED
)
578 sd_event_exit(sd_event_source_get_event(s
), ret
);
582 static int find_libraries(const char *exec
, char ***ret
) {
583 _cleanup_(sd_event_unrefp
) sd_event
*e
= NULL
;
584 _cleanup_(sd_event_source_unrefp
) sd_event_source
*sigchld_source
= NULL
;
585 _cleanup_(sd_event_source_unrefp
) sd_event_source
*stdout_source
= NULL
;
586 _cleanup_(sd_event_source_unrefp
) sd_event_source
*stderr_source
= NULL
;
587 _cleanup_close_pair_
int outpipe
[2] = PIPE_EBADF
, errpipe
[2] = PIPE_EBADF
;
588 _cleanup_strv_free_
char **libraries
= NULL
;
589 _cleanup_free_
char *result
= NULL
;
596 assert_se(sigprocmask_many(SIG_BLOCK
, NULL
, SIGCHLD
, -1) >= 0);
598 assert_se(pipe2(outpipe
, O_NONBLOCK
|O_CLOEXEC
) == 0);
599 assert_se(pipe2(errpipe
, O_NONBLOCK
|O_CLOEXEC
) == 0);
601 r
= safe_fork_full("(spawn-ldd)",
602 (int[]) { -EBADF
, outpipe
[1], errpipe
[1] },
604 FORK_RESET_SIGNALS
|FORK_CLOSE_ALL_FDS
|FORK_DEATHSIG
|FORK_REARRANGE_STDIO
|FORK_LOG
, &pid
);
607 execlp("ldd", "ldd", exec
, NULL
);
611 outpipe
[1] = safe_close(outpipe
[1]);
612 errpipe
[1] = safe_close(errpipe
[1]);
614 assert_se(sd_event_new(&e
) >= 0);
616 assert_se(sd_event_add_time_relative(e
, NULL
, CLOCK_MONOTONIC
,
617 10 * USEC_PER_SEC
, USEC_PER_SEC
, on_spawn_timeout
, &pid
) >= 0);
618 assert_se(sd_event_add_io(e
, &stdout_source
, outpipe
[0], EPOLLIN
, on_spawn_io
, &result
) >= 0);
619 assert_se(sd_event_source_set_enabled(stdout_source
, SD_EVENT_ONESHOT
) >= 0);
620 assert_se(sd_event_add_io(e
, &stderr_source
, errpipe
[0], EPOLLIN
, on_spawn_io
, NULL
) >= 0);
621 assert_se(sd_event_source_set_enabled(stderr_source
, SD_EVENT_ONESHOT
) >= 0);
622 assert_se(sd_event_add_child(e
, &sigchld_source
, pid
, WEXITED
, on_spawn_sigchld
, NULL
) >= 0);
623 /* SIGCHLD should be processed after IO is complete */
624 assert_se(sd_event_source_set_priority(sigchld_source
, SD_EVENT_PRIORITY_NORMAL
+ 1) >= 0);
626 assert_se(sd_event_loop(e
) >= 0);
628 _cleanup_strv_free_
char **v
= NULL
;
629 assert_se(strv_split_newlines_full(&v
, result
, 0) >= 0);
632 _cleanup_free_
char *word
= NULL
;
635 r
= extract_first_word(&p
, &word
, NULL
, 0);
640 if (path_is_absolute(word
)) {
641 assert_se(strv_consume(&libraries
, TAKE_PTR(word
)) >= 0);
646 r
= extract_first_word(&p
, &word
, NULL
, 0);
651 if (!streq_ptr(word
, "=>"))
655 r
= extract_first_word(&p
, &word
, NULL
, 0);
660 if (path_is_absolute(word
)) {
661 assert_se(strv_consume(&libraries
, TAKE_PTR(word
)) >= 0);
666 *ret
= TAKE_PTR(libraries
);
670 static void test_exec_mount_apivfs(Manager
*m
) {
671 _cleanup_free_
char *fullpath_touch
= NULL
, *fullpath_test
= NULL
, *data
= NULL
;
672 _cleanup_strv_free_
char **libraries
= NULL
, **libraries_test
= NULL
;
675 assert_se(user_runtime_unit_dir
);
677 r
= find_executable("ldd", NULL
);
679 log_notice_errno(r
, "Skipping %s, could not find 'ldd' command: %m", __func__
);
682 r
= find_executable("touch", &fullpath_touch
);
684 log_notice_errno(r
, "Skipping %s, could not find 'touch' command: %m", __func__
);
687 r
= find_executable("test", &fullpath_test
);
689 log_notice_errno(r
, "Skipping %s, could not find 'test' command: %m", __func__
);
693 assert_se(find_libraries(fullpath_touch
, &libraries
) >= 0);
694 assert_se(find_libraries(fullpath_test
, &libraries_test
) >= 0);
695 assert_se(strv_extend_strv(&libraries
, libraries_test
, true) >= 0);
697 assert_se(strextend(&data
, "[Service]\n"));
698 assert_se(strextend(&data
, "ExecStart=", fullpath_touch
, " /aaa\n"));
699 assert_se(strextend(&data
, "ExecStart=", fullpath_test
, " -f /aaa\n"));
700 assert_se(strextend(&data
, "BindReadOnlyPaths=", fullpath_touch
, "\n"));
701 assert_se(strextend(&data
, "BindReadOnlyPaths=", fullpath_test
, "\n"));
703 STRV_FOREACH(p
, libraries
)
704 assert_se(strextend(&data
, "BindReadOnlyPaths=", *p
, "\n"));
706 assert_se(write_drop_in(user_runtime_unit_dir
, "exec-mount-apivfs-no.service", 10, "bind-mount", data
) >= 0);
708 assert_se(mkdir_p("/tmp/test-exec-mount-apivfs-no/root", 0755) >= 0);
710 test(m
, "exec-mount-apivfs-no.service", can_unshare
|| !MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_NAMESPACE
, CLD_EXITED
);
712 (void) rm_rf("/tmp/test-exec-mount-apivfs-no/root", REMOVE_ROOT
|REMOVE_PHYSICAL
);
715 static void test_exec_noexecpaths(Manager
*m
) {
717 test(m
, "exec-noexecpaths-simple.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
720 static void test_exec_temporaryfilesystem(Manager
*m
) {
722 test(m
, "exec-temporaryfilesystem-options.service", can_unshare
? 0 : EXIT_NAMESPACE
, CLD_EXITED
);
723 test(m
, "exec-temporaryfilesystem-ro.service", can_unshare
? 0 : EXIT_NAMESPACE
, CLD_EXITED
);
724 test(m
, "exec-temporaryfilesystem-rw.service", can_unshare
? 0 : EXIT_NAMESPACE
, CLD_EXITED
);
725 test(m
, "exec-temporaryfilesystem-usr.service", can_unshare
? 0 : EXIT_NAMESPACE
, CLD_EXITED
);
728 static void test_exec_systemcallfilter(Manager
*m
) {
732 if (!is_seccomp_available()) {
733 log_notice("Seccomp not available, skipping %s", __func__
);
737 test(m
, "exec-systemcallfilter-not-failing.service", 0, CLD_EXITED
);
738 test(m
, "exec-systemcallfilter-not-failing2.service", 0, CLD_EXITED
);
739 test(m
, "exec-systemcallfilter-not-failing3.service", 0, CLD_EXITED
);
740 test(m
, "exec-systemcallfilter-failing.service", SIGSYS
, CLD_KILLED
);
741 test(m
, "exec-systemcallfilter-failing2.service", SIGSYS
, CLD_KILLED
);
742 test(m
, "exec-systemcallfilter-failing3.service", SIGSYS
, CLD_KILLED
);
744 r
= find_executable("python3", NULL
);
746 log_notice_errno(r
, "Skipping remaining tests in %s, could not find python3 binary: %m", __func__
);
750 test(m
, "exec-systemcallfilter-with-errno-name.service", errno_from_name("EILSEQ"), CLD_EXITED
);
751 test(m
, "exec-systemcallfilter-with-errno-number.service", 255, CLD_EXITED
);
752 test(m
, "exec-systemcallfilter-with-errno-multi.service", errno_from_name("EILSEQ"), CLD_EXITED
);
753 test(m
, "exec-systemcallfilter-with-errno-in-allow-list.service", errno_from_name("EILSEQ"), CLD_EXITED
);
754 test(m
, "exec-systemcallfilter-override-error-action.service", SIGSYS
, CLD_KILLED
);
755 test(m
, "exec-systemcallfilter-override-error-action2.service", errno_from_name("EILSEQ"), CLD_EXITED
);
759 static void test_exec_systemcallerrornumber(Manager
*m
) {
763 if (!is_seccomp_available()) {
764 log_notice("Seccomp not available, skipping %s", __func__
);
768 r
= find_executable("python3", NULL
);
770 log_notice_errno(r
, "Skipping %s, could not find python3 binary: %m", __func__
);
774 test(m
, "exec-systemcallerrornumber-name.service", errno_from_name("EACCES"), CLD_EXITED
);
775 test(m
, "exec-systemcallerrornumber-number.service", 255, CLD_EXITED
);
779 static void test_exec_restrictnamespaces(Manager
*m
) {
781 if (!is_seccomp_available()) {
782 log_notice("Seccomp not available, skipping %s", __func__
);
786 test(m
, "exec-restrictnamespaces-no.service", can_unshare
? 0 : EXIT_FAILURE
, CLD_EXITED
);
787 test(m
, "exec-restrictnamespaces-yes.service", 1, CLD_EXITED
);
788 test(m
, "exec-restrictnamespaces-mnt.service", can_unshare
? 0 : EXIT_FAILURE
, CLD_EXITED
);
789 test(m
, "exec-restrictnamespaces-mnt-deny-list.service", 1, CLD_EXITED
);
790 test(m
, "exec-restrictnamespaces-merge-and.service", can_unshare
? 0 : EXIT_FAILURE
, CLD_EXITED
);
791 test(m
, "exec-restrictnamespaces-merge-or.service", can_unshare
? 0 : EXIT_FAILURE
, CLD_EXITED
);
792 test(m
, "exec-restrictnamespaces-merge-all.service", can_unshare
? 0 : EXIT_FAILURE
, CLD_EXITED
);
796 static void test_exec_systemcallfilter_system(Manager
*m
) {
797 /* Skip this particular test case when running under ASan, as
798 * LSan intermittently segfaults when accessing memory right
799 * after the test finishes. Generally, ASan & LSan don't like
802 #if HAVE_SECCOMP && !HAS_FEATURE_ADDRESS_SANITIZER
803 if (!is_seccomp_available()) {
804 log_notice("Seccomp not available, skipping %s", __func__
);
808 test(m
, "exec-systemcallfilter-system-user.service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_GROUP
, CLD_EXITED
);
810 if (!check_nobody_user_and_group()) {
811 log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__
);
815 if (!STR_IN_SET(NOBODY_USER_NAME
, "nobody", "nfsnobody")) {
816 log_notice("Unsupported nobody user name '%s', skipping remaining tests in %s", NOBODY_USER_NAME
, __func__
);
820 test(m
, "exec-systemcallfilter-system-user-" NOBODY_USER_NAME
".service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_GROUP
, CLD_EXITED
);
824 static void test_exec_user(Manager
*m
) {
825 test(m
, "exec-user.service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_GROUP
, CLD_EXITED
);
827 if (!check_nobody_user_and_group()) {
828 log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__
);
832 if (!STR_IN_SET(NOBODY_USER_NAME
, "nobody", "nfsnobody")) {
833 log_notice("Unsupported nobody user name '%s', skipping remaining tests in %s", NOBODY_USER_NAME
, __func__
);
837 test(m
, "exec-user-" NOBODY_USER_NAME
".service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_GROUP
, CLD_EXITED
);
840 static void test_exec_group(Manager
*m
) {
841 test(m
, "exec-group.service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_GROUP
, CLD_EXITED
);
843 if (!check_nobody_user_and_group()) {
844 log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__
);
848 if (!STR_IN_SET(NOBODY_GROUP_NAME
, "nobody", "nfsnobody", "nogroup")) {
849 log_notice("Unsupported nobody group name '%s', skipping remaining tests in %s", NOBODY_GROUP_NAME
, __func__
);
853 test(m
, "exec-group-" NOBODY_GROUP_NAME
".service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_GROUP
, CLD_EXITED
);
856 static void test_exec_supplementarygroups(Manager
*m
) {
857 int status
= MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_GROUP
;
858 test(m
, "exec-supplementarygroups.service", status
, CLD_EXITED
);
859 test(m
, "exec-supplementarygroups-single-group.service", status
, CLD_EXITED
);
860 test(m
, "exec-supplementarygroups-single-group-user.service", status
, CLD_EXITED
);
861 test(m
, "exec-supplementarygroups-multiple-groups-default-group-user.service", status
, CLD_EXITED
);
862 test(m
, "exec-supplementarygroups-multiple-groups-withgid.service", status
, CLD_EXITED
);
863 test(m
, "exec-supplementarygroups-multiple-groups-withuid.service", status
, CLD_EXITED
);
866 static char* private_directory_bad(Manager
*m
) {
867 /* This mirrors setup_exec_directory(). */
869 for (ExecDirectoryType dt
= 0; dt
< _EXEC_DIRECTORY_TYPE_MAX
; dt
++) {
870 _cleanup_free_
char *p
= NULL
;
873 assert_se(p
= path_join(m
->prefix
[dt
], "private"));
875 if (stat(p
, &st
) >= 0 &&
876 (st
.st_mode
& (S_IRWXG
|S_IRWXO
)))
883 static void test_exec_dynamicuser(Manager
*m
) {
884 _cleanup_free_
char *bad
= private_directory_bad(m
);
886 log_warning("%s: %s has bad permissions, skipping test.", __func__
, bad
);
890 if (strstr_ptr(ci_environment(), "github-actions")) {
891 log_notice("%s: skipping test on GH Actions because of systemd/systemd#10337", __func__
);
895 int status
= can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_NAMESPACE
: EXIT_GROUP
;
897 test(m
, "exec-dynamicuser-fixeduser.service", status
, CLD_EXITED
);
898 if (check_user_has_group_with_same_name("adm"))
899 test(m
, "exec-dynamicuser-fixeduser-adm.service", status
, CLD_EXITED
);
900 if (check_user_has_group_with_same_name("games"))
901 test(m
, "exec-dynamicuser-fixeduser-games.service", status
, CLD_EXITED
);
902 test(m
, "exec-dynamicuser-fixeduser-one-supplementarygroup.service", status
, CLD_EXITED
);
903 test(m
, "exec-dynamicuser-supplementarygroups.service", status
, CLD_EXITED
);
904 test(m
, "exec-dynamicuser-statedir.service", status
, CLD_EXITED
);
906 (void) rm_rf("/var/lib/quux", REMOVE_ROOT
|REMOVE_PHYSICAL
);
907 (void) rm_rf("/var/lib/test-dynamicuser-migrate", REMOVE_ROOT
|REMOVE_PHYSICAL
);
908 (void) rm_rf("/var/lib/test-dynamicuser-migrate2", REMOVE_ROOT
|REMOVE_PHYSICAL
);
909 (void) rm_rf("/var/lib/waldo", REMOVE_ROOT
|REMOVE_PHYSICAL
);
910 (void) rm_rf("/var/lib/private/quux", REMOVE_ROOT
|REMOVE_PHYSICAL
);
911 (void) rm_rf("/var/lib/private/test-dynamicuser-migrate", REMOVE_ROOT
|REMOVE_PHYSICAL
);
912 (void) rm_rf("/var/lib/private/test-dynamicuser-migrate2", REMOVE_ROOT
|REMOVE_PHYSICAL
);
913 (void) rm_rf("/var/lib/private/waldo", REMOVE_ROOT
|REMOVE_PHYSICAL
);
915 test(m
, "exec-dynamicuser-statedir-migrate-step1.service", 0, CLD_EXITED
);
916 test(m
, "exec-dynamicuser-statedir-migrate-step2.service", status
, CLD_EXITED
);
917 test(m
, "exec-dynamicuser-statedir-migrate-step1.service", 0, CLD_EXITED
);
919 (void) rm_rf("/var/lib/test-dynamicuser-migrate", REMOVE_ROOT
|REMOVE_PHYSICAL
);
920 (void) rm_rf("/var/lib/test-dynamicuser-migrate2", REMOVE_ROOT
|REMOVE_PHYSICAL
);
921 (void) rm_rf("/var/lib/private/test-dynamicuser-migrate", REMOVE_ROOT
|REMOVE_PHYSICAL
);
922 (void) rm_rf("/var/lib/private/test-dynamicuser-migrate2", REMOVE_ROOT
|REMOVE_PHYSICAL
);
924 test(m
, "exec-dynamicuser-runtimedirectory1.service", status
, CLD_EXITED
);
925 test(m
, "exec-dynamicuser-runtimedirectory2.service", status
, CLD_EXITED
);
926 test(m
, "exec-dynamicuser-runtimedirectory3.service", status
, CLD_EXITED
);
929 static void test_exec_environment(Manager
*m
) {
930 test(m
, "exec-environment-no-substitute.service", 0, CLD_EXITED
);
931 test(m
, "exec-environment.service", 0, CLD_EXITED
);
932 test(m
, "exec-environment-multiple.service", 0, CLD_EXITED
);
933 test(m
, "exec-environment-empty.service", 0, CLD_EXITED
);
936 static void test_exec_environmentfile(Manager
*m
) {
937 static const char e
[] =
938 "VAR1='word1 word2'\n"
944 "line without an equal\n"
947 "VAR5=password\\with\\backslashes";
950 r
= write_string_file("/tmp/test-exec_environmentfile.conf", e
, WRITE_STRING_FILE_CREATE
);
953 test(m
, "exec-environmentfile.service", 0, CLD_EXITED
);
955 (void) unlink("/tmp/test-exec_environmentfile.conf");
958 static void test_exec_passenvironment(Manager
*m
) {
959 /* test-execute runs under MANAGER_USER which, by default, forwards all
960 * variables present in the environment, but only those that are
961 * present _at the time it is created_!
963 * So these PassEnvironment checks are still expected to work, since we
964 * are ensuring the variables are not present at manager creation (they
965 * are unset explicitly in main) and are only set here.
967 * This is still a good approximation of how a test for MANAGER_SYSTEM
970 assert_se(setenv("VAR1", "word1 word2", 1) == 0);
971 assert_se(setenv("VAR2", "word3", 1) == 0);
972 assert_se(setenv("VAR3", "$word 5 6", 1) == 0);
973 assert_se(setenv("VAR4", "new\nline", 1) == 0);
974 assert_se(setenv("VAR5", "passwordwithbackslashes", 1) == 0);
975 test(m
, "exec-passenvironment.service", 0, CLD_EXITED
);
976 test(m
, "exec-passenvironment-repeated.service", 0, CLD_EXITED
);
977 test(m
, "exec-passenvironment-empty.service", 0, CLD_EXITED
);
978 assert_se(unsetenv("VAR1") == 0);
979 assert_se(unsetenv("VAR2") == 0);
980 assert_se(unsetenv("VAR3") == 0);
981 assert_se(unsetenv("VAR4") == 0);
982 assert_se(unsetenv("VAR5") == 0);
983 test(m
, "exec-passenvironment-absent.service", 0, CLD_EXITED
);
986 static void test_exec_umask(Manager
*m
) {
987 test(m
, "exec-umask-default.service", can_unshare
|| MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_NAMESPACE
, CLD_EXITED
);
988 test(m
, "exec-umask-0177.service", can_unshare
|| MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_NAMESPACE
, CLD_EXITED
);
991 static void test_exec_runtimedirectory(Manager
*m
) {
992 (void) rm_rf("/run/test-exec_runtimedirectory2", REMOVE_ROOT
|REMOVE_PHYSICAL
);
993 test(m
, "exec-runtimedirectory.service", 0, CLD_EXITED
);
994 (void) rm_rf("/run/test-exec_runtimedirectory2", REMOVE_ROOT
|REMOVE_PHYSICAL
);
996 test(m
, "exec-runtimedirectory-mode.service", 0, CLD_EXITED
);
997 test(m
, "exec-runtimedirectory-owner.service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_GROUP
, CLD_EXITED
);
999 if (!check_nobody_user_and_group()) {
1000 log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__
);
1004 if (!STR_IN_SET(NOBODY_GROUP_NAME
, "nobody", "nfsnobody", "nogroup")) {
1005 log_notice("Unsupported nobody group name '%s', skipping remaining tests in %s", NOBODY_GROUP_NAME
, __func__
);
1009 test(m
, "exec-runtimedirectory-owner-" NOBODY_GROUP_NAME
".service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_GROUP
, CLD_EXITED
);
1012 static void test_exec_capabilityboundingset(Manager
*m
) {
1015 r
= find_executable("capsh", NULL
);
1017 log_notice_errno(r
, "Skipping %s, could not find capsh binary: %m", __func__
);
1021 if (have_effective_cap(CAP_CHOWN
) <= 0 ||
1022 have_effective_cap(CAP_FOWNER
) <= 0 ||
1023 have_effective_cap(CAP_KILL
) <= 0) {
1024 log_notice("Skipping %s, this process does not have enough capabilities", __func__
);
1028 test(m
, "exec-capabilityboundingset-simple.service", 0, CLD_EXITED
);
1029 test(m
, "exec-capabilityboundingset-reset.service", 0, CLD_EXITED
);
1030 test(m
, "exec-capabilityboundingset-merge.service", 0, CLD_EXITED
);
1031 test(m
, "exec-capabilityboundingset-invert.service", 0, CLD_EXITED
);
1034 static void test_exec_basic(Manager
*m
) {
1035 test(m
, "exec-basic.service", can_unshare
|| MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_NAMESPACE
, CLD_EXITED
);
1038 static void test_exec_ambientcapabilities(Manager
*m
) {
1041 /* Check if the kernel has support for ambient capabilities. Run
1042 * the tests only if that's the case. Clearing all ambient
1043 * capabilities is fine, since we are expecting them to be unset
1044 * in the first place for the tests. */
1045 r
= prctl(PR_CAP_AMBIENT
, PR_CAP_AMBIENT_CLEAR_ALL
, 0, 0, 0);
1046 if (r
< 0 && IN_SET(errno
, EINVAL
, EOPNOTSUPP
, ENOSYS
)) {
1047 log_notice("Skipping %s, the kernel does not support ambient capabilities", __func__
);
1051 if (have_effective_cap(CAP_CHOWN
) <= 0 ||
1052 have_effective_cap(CAP_NET_RAW
) <= 0) {
1053 log_notice("Skipping %s, this process does not have enough capabilities", __func__
);
1057 test(m
, "exec-ambientcapabilities.service", 0, CLD_EXITED
);
1058 test(m
, "exec-ambientcapabilities-merge.service", 0, CLD_EXITED
);
1060 if (!check_nobody_user_and_group()) {
1061 log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__
);
1065 if (!STR_IN_SET(NOBODY_USER_NAME
, "nobody", "nfsnobody")) {
1066 log_notice("Unsupported nobody user name '%s', skipping remaining tests in %s", NOBODY_USER_NAME
, __func__
);
1070 test(m
, "exec-ambientcapabilities-" NOBODY_USER_NAME
".service", 0, CLD_EXITED
);
1071 test(m
, "exec-ambientcapabilities-merge-" NOBODY_USER_NAME
".service", 0, CLD_EXITED
);
1074 static void test_exec_privatenetwork(Manager
*m
) {
1077 r
= find_executable("ip", NULL
);
1079 log_notice_errno(r
, "Skipping %s, could not find ip binary: %m", __func__
);
1083 test(m
, "exec-privatenetwork-yes-privatemounts-no.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_NETWORK
: EXIT_FAILURE
, CLD_EXITED
);
1084 test(m
, "exec-privatenetwork-yes-privatemounts-yes.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_NETWORK
: EXIT_NAMESPACE
, CLD_EXITED
);
1087 static void test_exec_networknamespacepath(Manager
*m
) {
1090 r
= find_executable("ip", NULL
);
1092 log_notice_errno(r
, "Skipping %s, could not find ip binary: %m", __func__
);
1096 test(m
, "exec-networknamespacepath-privatemounts-no.service", MANAGER_IS_SYSTEM(m
) ? EXIT_SUCCESS
: EXIT_FAILURE
, CLD_EXITED
);
1097 test(m
, "exec-networknamespacepath-privatemounts-yes.service", can_unshare
? EXIT_SUCCESS
: MANAGER_IS_SYSTEM(m
) ? EXIT_FAILURE
: EXIT_NAMESPACE
, CLD_EXITED
);
1100 static void test_exec_oomscoreadjust(Manager
*m
) {
1101 test(m
, "exec-oomscoreadjust-positive.service", 0, CLD_EXITED
);
1103 if (detect_container() > 0) {
1104 log_notice("Testing in container, skipping remaining tests in %s", __func__
);
1107 test(m
, "exec-oomscoreadjust-negative.service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_FAILURE
, CLD_EXITED
);
1110 static void test_exec_ioschedulingclass(Manager
*m
) {
1111 test(m
, "exec-ioschedulingclass-none.service", 0, CLD_EXITED
);
1112 test(m
, "exec-ioschedulingclass-idle.service", 0, CLD_EXITED
);
1113 test(m
, "exec-ioschedulingclass-best-effort.service", 0, CLD_EXITED
);
1115 if (detect_container() > 0) {
1116 log_notice("Testing in container, skipping remaining tests in %s", __func__
);
1119 test(m
, "exec-ioschedulingclass-realtime.service", MANAGER_IS_SYSTEM(m
) ? 0 : EXIT_IOPRIO
, CLD_EXITED
);
1122 static void test_exec_unsetenvironment(Manager
*m
) {
1123 test(m
, "exec-unsetenvironment.service", 0, CLD_EXITED
);
1126 static void test_exec_specifier(Manager
*m
) {
1127 test(m
, "exec-specifier.service", 0, CLD_EXITED
);
1128 if (MANAGER_IS_SYSTEM(m
))
1129 test(m
, "exec-specifier-system.service", 0, CLD_EXITED
);
1131 test(m
, "exec-specifier-user.service", 0, CLD_EXITED
);
1132 test(m
, "exec-specifier@foo-bar.service", 0, CLD_EXITED
);
1133 test(m
, "exec-specifier-interpolation.service", 0, CLD_EXITED
);
1136 static void test_exec_standardinput(Manager
*m
) {
1137 test(m
, "exec-standardinput-data.service", 0, CLD_EXITED
);
1138 test(m
, "exec-standardinput-file.service", 0, CLD_EXITED
);
1139 test(m
, "exec-standardinput-file-cat.service", 0, CLD_EXITED
);
1142 static void test_exec_standardoutput(Manager
*m
) {
1143 test(m
, "exec-standardoutput-file.service", 0, CLD_EXITED
);
1146 static void test_exec_standardoutput_append(Manager
*m
) {
1147 test(m
, "exec-standardoutput-append.service", 0, CLD_EXITED
);
1150 static void test_exec_standardoutput_truncate(Manager
*m
) {
1151 test(m
, "exec-standardoutput-truncate.service", 0, CLD_EXITED
);
1154 static void test_exec_condition(Manager
*m
) {
1155 test_service(m
, "exec-condition-failed.service", SERVICE_FAILURE_EXIT_CODE
);
1156 test_service(m
, "exec-condition-skip.service", SERVICE_SKIP_CONDITION
);
1159 static void test_exec_umask_namespace(Manager
*m
) {
1160 /* exec-specifier-credentials-dir.service creates /run/credentials and enables implicit
1161 * InaccessiblePath= for the directory for all later services with mount namespace. */
1162 if (!is_inaccessible_available()) {
1163 log_notice("Testing without inaccessible, skipping %s", __func__
);
1166 test(m
, "exec-umask-namespace.service", can_unshare
? 0 : MANAGER_IS_SYSTEM(m
) ? EXIT_NAMESPACE
: EXIT_GROUP
, CLD_EXITED
);
1169 typedef struct test_entry
{
1174 #define entry(x) {x, #x}
1176 static void run_tests(RuntimeScope scope
, char **patterns
) {
1177 _cleanup_(rm_rf_physical_and_freep
) char *runtime_dir
= NULL
;
1178 _cleanup_free_
char *unit_paths
= NULL
;
1179 _cleanup_(manager_freep
) Manager
*m
= NULL
;
1180 usec_t start
, finish
;
1183 static const test_entry tests
[] = {
1184 entry(test_exec_basic
),
1185 entry(test_exec_ambientcapabilities
),
1186 entry(test_exec_bindpaths
),
1187 entry(test_exec_capabilityboundingset
),
1188 entry(test_exec_condition
),
1189 entry(test_exec_cpuaffinity
),
1190 entry(test_exec_credentials
),
1191 entry(test_exec_dynamicuser
),
1192 entry(test_exec_environment
),
1193 entry(test_exec_environmentfile
),
1194 entry(test_exec_execsearchpath
),
1195 entry(test_exec_execsearchpath_environment
),
1196 entry(test_exec_execsearchpath_environment_files
),
1197 entry(test_exec_execsearchpath_passenvironment
),
1198 entry(test_exec_execsearchpath_specifier
),
1199 entry(test_exec_group
),
1200 entry(test_exec_ignoresigpipe
),
1201 entry(test_exec_inaccessiblepaths
),
1202 entry(test_exec_ioschedulingclass
),
1203 entry(test_exec_mount_apivfs
),
1204 entry(test_exec_networknamespacepath
),
1205 entry(test_exec_noexecpaths
),
1206 entry(test_exec_oomscoreadjust
),
1207 entry(test_exec_passenvironment
),
1208 entry(test_exec_personality
),
1209 entry(test_exec_privatedevices
),
1210 entry(test_exec_privatenetwork
),
1211 entry(test_exec_privatetmp
),
1212 entry(test_exec_protecthome
),
1213 entry(test_exec_protectkernelmodules
),
1214 entry(test_exec_readonlypaths
),
1215 entry(test_exec_readwritepaths
),
1216 entry(test_exec_restrictnamespaces
),
1217 entry(test_exec_runtimedirectory
),
1218 entry(test_exec_specifier
),
1219 entry(test_exec_standardinput
),
1220 entry(test_exec_standardoutput
),
1221 entry(test_exec_standardoutput_append
),
1222 entry(test_exec_standardoutput_truncate
),
1223 entry(test_exec_supplementarygroups
),
1224 entry(test_exec_systemcallerrornumber
),
1225 entry(test_exec_systemcallfilter
),
1226 entry(test_exec_systemcallfilter_system
),
1227 entry(test_exec_temporaryfilesystem
),
1228 entry(test_exec_umask
),
1229 entry(test_exec_umask_namespace
),
1230 entry(test_exec_unsetenvironment
),
1231 entry(test_exec_user
),
1232 entry(test_exec_workingdirectory
),
1236 assert_se(unsetenv("USER") == 0);
1237 assert_se(unsetenv("LOGNAME") == 0);
1238 assert_se(unsetenv("SHELL") == 0);
1239 assert_se(unsetenv("HOME") == 0);
1240 assert_se(unsetenv("TMPDIR") == 0);
1242 /* Unset VARx, especially, VAR1, VAR2 and VAR3, which are used in the PassEnvironment test cases,
1243 * otherwise (and if they are present in the environment), `manager_default_environment` will copy
1244 * them into the default environment which is passed to each created job, which will make the tests
1245 * that expect those not to be present to fail. */
1246 assert_se(unsetenv("VAR1") == 0);
1247 assert_se(unsetenv("VAR2") == 0);
1248 assert_se(unsetenv("VAR3") == 0);
1249 assert_se(unsetenv("VAR4") == 0);
1250 assert_se(unsetenv("VAR5") == 0);
1252 assert_se(runtime_dir
= setup_fake_runtime_dir());
1253 assert_se(user_runtime_unit_dir
= path_join(runtime_dir
, "systemd/user"));
1254 assert_se(unit_paths
= strjoin(PRIVATE_UNIT_DIR
, ":", user_runtime_unit_dir
));
1255 assert_se(set_unit_path(unit_paths
) >= 0);
1257 r
= manager_new(scope
, MANAGER_TEST_RUN_BASIC
, &m
);
1258 if (manager_errno_skip_test(r
))
1259 return (void) log_tests_skipped_errno(r
, "manager_new");
1262 m
->defaults
.std_output
= EXEC_OUTPUT_NULL
; /* don't rely on host journald */
1263 assert_se(manager_startup(m
, NULL
, NULL
, NULL
) >= 0);
1265 /* Uncomment below if you want to make debugging logs stored to journal. */
1266 //manager_override_log_target(m, LOG_TARGET_AUTO);
1267 //manager_override_log_level(m, LOG_DEBUG);
1269 /* Measure and print the time that it takes to run tests, excluding startup of the manager object,
1270 * to try and measure latency of spawning services */
1272 start
= now(CLOCK_MONOTONIC
);
1274 for (const test_entry
*test
= tests
; test
->f
; test
++)
1275 if (strv_fnmatch_or_empty(patterns
, test
->name
, FNM_NOESCAPE
))
1278 log_info("Skipping %s because it does not match any pattern.", test
->name
);
1280 finish
= now(CLOCK_MONOTONIC
);
1282 log_info("ran %u tests with %s manager + unshare=%s in: %s",
1284 scope
== RUNTIME_SCOPE_SYSTEM
? "system" : "user",
1285 yes_no(can_unshare
),
1286 FORMAT_TIMESPAN(finish
- start
, USEC_PER_MSEC
));
1289 static int prepare_ns(const char *process_name
) {
1292 r
= safe_fork(process_name
,
1293 FORK_RESET_SIGNALS
|
1294 FORK_CLOSE_ALL_FDS
|
1304 _cleanup_free_
char *unit_dir
= NULL
;
1306 /* Make "/" read-only. */
1307 assert_se(mount_nofollow_verbose(LOG_DEBUG
, NULL
, "/", NULL
, MS_BIND
|MS_REMOUNT
|MS_RDONLY
, NULL
) >= 0);
1309 /* Creating a new user namespace in the above means all MS_SHARED mounts become MS_SLAVE.
1310 * Let's put them back to MS_SHARED here, since that's what we want as defaults. (This will
1311 * not reconnect propagation, but simply create new peer groups for all our mounts). */
1312 assert_se(mount_follow_verbose(LOG_DEBUG
, NULL
, "/", NULL
, MS_SHARED
|MS_REC
, NULL
) >= 0);
1314 assert_se(mkdir_p(PRIVATE_UNIT_DIR
, 0755) >= 0);
1315 assert_se(mount_nofollow_verbose(LOG_DEBUG
, "tmpfs", PRIVATE_UNIT_DIR
, "tmpfs", MS_NOSUID
|MS_NODEV
, NULL
) >= 0);
1317 /* Copy unit files to make them accessible even when unprivileged. */
1318 assert_se(get_testdata_dir("test-execute/", &unit_dir
) >= 0);
1319 assert_se(copy_directory_at(AT_FDCWD
, unit_dir
, AT_FDCWD
, PRIVATE_UNIT_DIR
, COPY_MERGE_EMPTY
) >= 0);
1321 /* Mount tmpfs on the following directories to make not StateDirectory= or friends disturb the host. */
1322 FOREACH_STRING(p
, "/dev/shm", "/root", "/tmp", "/var/tmp", "/var/lib")
1323 assert_se(mount_nofollow_verbose(LOG_DEBUG
, "tmpfs", p
, "tmpfs", MS_NOSUID
|MS_NODEV
, NULL
) >= 0);
1325 /* Prepare credstore like tmpfiles.d/credstore.conf for LoadCredential= tests. */
1326 FOREACH_STRING(p
, "/run/credstore", "/run/credstore.encrypted") {
1327 assert_se(mkdir_p(p
, 0) >= 0);
1328 assert_se(mount_nofollow_verbose(LOG_DEBUG
, "tmpfs", p
, "tmpfs", MS_NOSUID
|MS_NODEV
, "mode=0000") >= 0);
1331 assert_se(write_string_file("/run/credstore/test-execute.load-credential", "foo", WRITE_STRING_FILE_CREATE
) >= 0);
1337 TEST(run_tests_root
) {
1338 _cleanup_strv_free_
char **filters
= NULL
;
1340 if (!have_namespaces())
1341 return (void) log_tests_skipped("unshare() is disabled");
1343 /* safe_fork() clears saved_argv in the child process. Let's copy it. */
1344 assert_se(filters
= strv_copy(strv_skip(saved_argv
, 1)));
1346 if (prepare_ns("(test-execute-root)") == 0) {
1348 run_tests(RUNTIME_SCOPE_SYSTEM
, filters
);
1349 _exit(EXIT_SUCCESS
);
1353 TEST(run_tests_without_unshare
) {
1354 if (!have_namespaces()) {
1355 /* unshare() is already filtered. */
1356 can_unshare
= false;
1357 run_tests(RUNTIME_SCOPE_SYSTEM
, strv_skip(saved_argv
, 1));
1362 _cleanup_strv_free_
char **filters
= NULL
;
1365 /* The following tests are for 1beab8b0d0ff2d7d1436b52d4a0c3d56dc908962. */
1366 if (!is_seccomp_available())
1367 return (void) log_tests_skipped("Seccomp not available, cannot run unshare() filtered tests");
1369 /* safe_fork() clears saved_argv in the child process. Let's copy it. */
1370 assert_se(filters
= strv_copy(strv_skip(saved_argv
, 1)));
1372 if (prepare_ns("(test-execute-without-unshare)") == 0) {
1373 _cleanup_hashmap_free_ Hashmap
*s
= NULL
;
1375 r
= seccomp_syscall_resolve_name("unshare");
1376 assert_se(r
!= __NR_SCMP_ERROR
);
1377 assert_se(hashmap_ensure_put(&s
, NULL
, UINT32_TO_PTR(r
+ 1), INT_TO_PTR(-1)) >= 0);
1378 assert_se(seccomp_load_syscall_filter_set_raw(SCMP_ACT_ALLOW
, s
, SCMP_ACT_ERRNO(EOPNOTSUPP
), true) >= 0);
1380 /* Check unshare() is actually filtered. */
1381 assert_se(unshare(CLONE_NEWNS
) < 0);
1382 assert_se(errno
== EOPNOTSUPP
);
1384 can_unshare
= false;
1385 run_tests(RUNTIME_SCOPE_SYSTEM
, filters
);
1386 _exit(EXIT_SUCCESS
);
1389 log_tests_skipped("Built without seccomp support, cannot run unshare() filtered tests");
1393 TEST(run_tests_unprivileged
) {
1394 _cleanup_strv_free_
char **filters
= NULL
;
1396 if (!have_namespaces())
1397 return (void) log_tests_skipped("unshare() is disabled");
1399 /* safe_fork() clears saved_argv in the child process. Let's copy it. */
1400 assert_se(filters
= strv_copy(strv_skip(saved_argv
, 1)));
1402 if (prepare_ns("(test-execute-unprivileged)") == 0) {
1403 assert_se(capability_bounding_set_drop(0, /* right_now = */ true) >= 0);
1405 can_unshare
= false;
1406 run_tests(RUNTIME_SCOPE_USER
, filters
);
1407 _exit(EXIT_SUCCESS
);
1411 static int intro(void) {
1412 #if HAS_FEATURE_ADDRESS_SANITIZER
1413 if (strstr_ptr(ci_environment(), "travis") || strstr_ptr(ci_environment(), "github-actions"))
1414 return log_tests_skipped("Running on Travis CI/GH Actions under ASan, see https://github.com/systemd/systemd/issues/10696");
1416 /* It is needed otherwise cgroup creation fails */
1417 if (geteuid() != 0 || have_effective_cap(CAP_SYS_ADMIN
) <= 0)
1418 return log_tests_skipped("not privileged");
1420 if (enter_cgroup_subroot(NULL
) == -ENOMEDIUM
)
1421 return log_tests_skipped("cgroupfs not available");
1423 if (path_is_read_only_fs("/sys") > 0)
1424 return log_tests_skipped("/sys is mounted read-only");
1426 /* Create dummy network interface for testing PrivateNetwork=yes */
1427 (void) system("ip link add dummy-test-exec type dummy");
1429 /* Create a network namespace and a dummy interface in it for NetworkNamespacePath= */
1430 (void) system("ip netns add test-execute-netns");
1431 (void) system("ip netns exec test-execute-netns ip link add dummy-test-ns type dummy");
1433 return EXIT_SUCCESS
;
1436 static int outro(void) {
1437 (void) system("ip link del dummy-test-exec");
1438 (void) system("ip netns del test-execute-netns");
1439 (void) rmdir(PRIVATE_UNIT_DIR
);
1441 return EXIT_SUCCESS
;
1444 DEFINE_TEST_MAIN_FULL(LOG_DEBUG
, intro
, outro
);