#include <stdio.h>

#include <sys/prctl.h>

#include <sys/types.h>

#include "sd-event.h"

#include "capability-util.h"

#include "cpu-set-util.h"

#include "copy.h"

#include "dropin.h"

#include "errno-list.h"

#include "fd-util.h"

#include "fileio.h"

#include "fs-util.h"

#include "macro.h"

#include "manager.h"

#include "missing_prctl.h"

#include "mkdir.h"

#include "path-util.h"

#include "process-util.h"

#include "rm-rf.h"

#if HAVE_SECCOMP

#include "seccomp-util.h"

#include "service.h"

#include "signal-util.h"

#include "static-destruct.h"

#include "stat-util.h"

#include "tests.h"

#include "tmpfile-util.h"

#include "unit.h"

#include "user-util.h"

#include "util.h"

#include "virt.h"

static char *user_runtime_unit_dir = NULL;

static bool can_unshare;

STATIC_DESTRUCTOR_REGISTER(user_runtime_unit_dir, freep);

typedef void (*test_function_t)(Manager *m);

static int cld_dumped_to_killed(int code) {

/* Depending on the system, seccomp version, … some signals might result in dumping, others in plain

return code == CLD_DUMPED ? CLD_KILLED : code;

}

static void wait_for_service_finish(Manager *m, Unit *unit) {

Service *service = NULL;

usec_t ts;

usec_t timeout = 2 * USEC_PER_MINUTE;

assert_se(m);

assert_se(unit);

service = SERVICE(unit);

printf("%s\n", unit->id);

exec_context_dump(&service->exec_context, stdout, "\t");

ts = now(CLOCK_MONOTONIC);

while (!IN_SET(service->state, SERVICE_DEAD, SERVICE_FAILED)) {

int r;

usec_t n;

r = sd_event_run(m->event, 100 * USEC_PER_MSEC);

assert_se(r >= 0);

n = now(CLOCK_MONOTONIC);

if (ts + timeout < n) {

log_error("Test timeout when testing %s", unit->id);

r = unit_kill(unit, KILL_ALL, SIGKILL, NULL);

if (r < 0)

log_error_errno(r, "Failed to kill %s: %m", unit->id);

exit(EXIT_FAILURE);

}

}

}

static void check_main_result(const char *file, unsigned line, const char *func,

Manager *m, Unit *unit, int status_expected, int code_expected) {

Service *service = NULL;

assert_se(m);

assert_se(unit);

wait_for_service_finish(m, unit);

service = SERVICE(unit);

exec_status_dump(&service->main_exec_status, stdout, "\t");

if (cld_dumped_to_killed(service->main_exec_status.code) != cld_dumped_to_killed(code_expected)) {

log_error("%s:%u:%s %s: can_unshare=%s: exit code %d, expected %d",

file, line, func, unit->id, yes_no(can_unshare),

service->main_exec_status.code, code_expected);

abort();

}

if (service->main_exec_status.status != status_expected) {

log_error("%s:%u:%s: %s: can_unshare=%s: exit status %d, expected %d",

file, line, func, unit->id, yes_no(can_unshare),

service->main_exec_status.status, status_expected);

abort();

}

}

static void check_service_result(const char *file, unsigned line, const char *func,

Manager *m, Unit *unit, ServiceResult result_expected) {

Service *service = NULL;

assert_se(m);

assert_se(unit);

wait_for_service_finish(m, unit);

service = SERVICE(unit);

if (service->result != result_expected) {

log_error("%s:%u:%s: %s: can_unshare=%s: service end result %s, expected %s",

file, line, func, unit->id, yes_no(can_unshare),

service_result_to_string(service->result),

service_result_to_string(result_expected));

abort();

}

}

static bool check_nobody_user_and_group(void) {

static int cache = -1;

struct passwd *p;

struct group *g;

if (cache >= 0)

return !!cache;

if (!synthesize_nobody())

goto invalid;

p = getpwnam(NOBODY_USER_NAME);

if (!p ||

!streq(p->pw_name, NOBODY_USER_NAME) ||

p->pw_uid != UID_NOBODY ||

p->pw_gid != GID_NOBODY)

goto invalid;

p = getpwuid(UID_NOBODY);

if (!p ||

!streq(p->pw_name, NOBODY_USER_NAME) ||

p->pw_uid != UID_NOBODY ||

p->pw_gid != GID_NOBODY)

goto invalid;

g = getgrnam(NOBODY_GROUP_NAME);

if (!g ||

!streq(g->gr_name, NOBODY_GROUP_NAME) ||

g->gr_gid != GID_NOBODY)

goto invalid;

g = getgrgid(GID_NOBODY);

if (!g ||

!streq(g->gr_name, NOBODY_GROUP_NAME) ||

g->gr_gid != GID_NOBODY)

goto invalid;

cache = 1;

return true;

invalid:

cache = 0;

return false;

}

static bool check_user_has_group_with_same_name(const char *name) {

struct passwd *p;

struct group *g;

assert_se(name);

p = getpwnam(name);

if (!p ||

!streq(p->pw_name, name))

return false;

g = getgrgid(p->pw_gid);

if (!g ||

!streq(g->gr_name, name))

return false;

return true;

}

static bool is_inaccessible_available(void) {

FOREACH_STRING(p,

"/run/systemd/inaccessible/reg",

"/run/systemd/inaccessible/dir",

"/run/systemd/inaccessible/chr",

"/run/systemd/inaccessible/blk",

"/run/systemd/inaccessible/fifo",

"/run/systemd/inaccessible/sock")

if (access(p, F_OK) < 0)

return false;

return true;

}

static void _test(const char *file, unsigned line, const char *func,

Manager *m, const char *unit_name, int status_expected, int code_expected) {

Unit *unit;

assert_se(unit_name);

assert_se(manager_load_startable_unit_or_warn(m, unit_name, NULL, &unit) >= 0);

assert_se(unit_start(unit) >= 0);

check_main_result(file, line, func, m, unit, status_expected, code_expected);

}

#define test(m, unit_name, status_expected, code_expected) \

_test(PROJECT_FILE, __LINE__, __func__, m, unit_name, status_expected, code_expected)

static void _test_service(const char *file, unsigned line, const char *func,

Manager *m, const char *unit_name, ServiceResult result_expected) {

Unit *unit;

assert_se(unit_name);

assert_se(manager_load_startable_unit_or_warn(m, unit_name, NULL, &unit) >= 0);

assert_se(unit_start(unit) >= 0);

check_service_result(file, line, func, m, unit, result_expected);

}

#define test_service(m, unit_name, result_expected) \

_test_service(PROJECT_FILE, __LINE__, __func__, m, unit_name, result_expected)

static void test_exec_bindpaths(Manager *m) {

assert_se(mkdir_p("/tmp/test-exec-bindpaths", 0755) >= 0);

assert_se(mkdir_p("/tmp/test-exec-bindreadonlypaths", 0755) >= 0);

test(m, "exec-bindpaths.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);

(void) rm_rf("/tmp/test-exec-bindpaths", REMOVE_ROOT|REMOVE_PHYSICAL);

(void) rm_rf("/tmp/test-exec-bindreadonlypaths", REMOVE_ROOT|REMOVE_PHYSICAL);

}

static void test_exec_cpuaffinity(Manager *m) {

_cleanup_(cpu_set_reset) CPUSet c = {};

assert_se(cpu_set_realloc(&c, 8192) >= 0); /* just allocate the maximum possible size */

assert_se(sched_getaffinity(0, c.allocated, c.set) >= 0);

if (!CPU_ISSET_S(0, c.allocated, c.set)) {

log_notice("Cannot use CPU 0, skipping %s", __func__);

return;

}

test(m, "exec-cpuaffinity1.service", 0, CLD_EXITED);

test(m, "exec-cpuaffinity2.service", 0, CLD_EXITED);

if (!CPU_ISSET_S(1, c.allocated, c.set) ||

!CPU_ISSET_S(2, c.allocated, c.set)) {

log_notice("Cannot use CPU 1 or 2, skipping remaining tests in %s", __func__);

return;

}

test(m, "exec-cpuaffinity3.service", 0, CLD_EXITED);

}

static void test_exec_workingdirectory(Manager *m) {

assert_se(mkdir_p("/tmp/test-exec_workingdirectory", 0755) >= 0);

test(m, "exec-workingdirectory.service", 0, CLD_EXITED);

test(m, "exec-workingdirectory-trailing-dot.service", 0, CLD_EXITED);

(void) rm_rf("/tmp/test-exec_workingdirectory", REMOVE_ROOT|REMOVE_PHYSICAL);

}

static void test_exec_execsearchpath(Manager *m) {

assert_se(mkdir_p("/tmp/test-exec_execsearchpath", 0755) >= 0);

assert_se(copy_file("/bin/ls", "/tmp/test-exec_execsearchpath/ls_temp", 0, 0777, 0, 0, COPY_REPLACE) >= 0);

test(m, "exec-execsearchpath.service", 0, CLD_EXITED);

assert_se(rm_rf("/tmp/test-exec_execsearchpath", REMOVE_ROOT|REMOVE_PHYSICAL) >= 0);

test(m, "exec-execsearchpath.service", EXIT_EXEC, CLD_EXITED);

}

static void test_exec_execsearchpath_specifier(Manager *m) {

test(m, "exec-execsearchpath-unit-specifier.service", 0, CLD_EXITED);

}

static void test_exec_execsearchpath_environment(Manager *m) {

test(m, "exec-execsearchpath-environment.service", 0, CLD_EXITED);

test(m, "exec-execsearchpath-environment-path-set.service", 0, CLD_EXITED);

}

static void test_exec_execsearchpath_environment_files(Manager *m) {

static const char path_not_set[] =

"VAR1='word1 word2'\n"

"VAR2=word3 \n"

"# comment1\n"

"\n"

"; comment2\n"

" ; # comment3\n"

"line without an equal\n"

"VAR3='$word 5 6'\n"

"VAR4='new\nline'\n"

"VAR5=password\\with\\backslashes";

static const char path_set[] =

"VAR1='word1 word2'\n"

"VAR2=word3 \n"

"# comment1\n"

"\n"

"; comment2\n"

" ; # comment3\n"

"line without an equal\n"

"VAR3='$word 5 6'\n"

"VAR4='new\nline'\n"

"VAR5=password\\with\\backslashes\n"

"PATH=/usr";

int r;

r = write_string_file("/tmp/test-exec_execsearchpath_environmentfile.conf", path_not_set, WRITE_STRING_FILE_CREATE);

assert_se(r == 0);

test(m, "exec-execsearchpath-environmentfile.service", 0, CLD_EXITED);

(void) unlink("/tmp/test-exec_environmentfile.conf");

r = write_string_file("/tmp/test-exec_execsearchpath_environmentfile-set.conf", path_set, WRITE_STRING_FILE_CREATE);

assert_se(r == 0);

test(m, "exec-execsearchpath-environmentfile-set.service", 0, CLD_EXITED);

(void) unlink("/tmp/test-exec_environmentfile-set.conf");

}

static void test_exec_execsearchpath_passenvironment(Manager *m) {

assert_se(setenv("VAR1", "word1 word2", 1) == 0);

assert_se(setenv("VAR2", "word3", 1) == 0);

assert_se(setenv("VAR3", "$word 5 6", 1) == 0);

assert_se(setenv("VAR4", "new\nline", 1) == 0);

assert_se(setenv("VAR5", "passwordwithbackslashes", 1) == 0);

test(m, "exec-execsearchpath-passenvironment.service", 0, CLD_EXITED);

assert_se(setenv("PATH", "/usr", 1) == 0);

test(m, "exec-execsearchpath-passenvironment-set.service", 0, CLD_EXITED);

assert_se(unsetenv("VAR1") == 0);

assert_se(unsetenv("VAR2") == 0);

assert_se(unsetenv("VAR3") == 0);

assert_se(unsetenv("VAR4") == 0);

assert_se(unsetenv("VAR5") == 0);

assert_se(unsetenv("PATH") == 0);

}

static void test_exec_personality(Manager *m) {

#if defined(__x86_64__)

test(m, "exec-personality-x86-64.service", 0, CLD_EXITED);

#elif defined(__s390__)

test(m, "exec-personality-s390.service", 0, CLD_EXITED);

#elif defined(__powerpc64__)

# if __BYTE_ORDER == __BIG_ENDIAN

test(m, "exec-personality-ppc64.service", 0, CLD_EXITED);

test(m, "exec-personality-ppc64le.service", 0, CLD_EXITED);

#elif defined(__aarch64__)

test(m, "exec-personality-aarch64.service", 0, CLD_EXITED);

#elif defined(__i386__)

test(m, "exec-personality-x86.service", 0, CLD_EXITED);

#elif defined(__loongarch64)

test(m, "exec-personality-loongarch64.service", 0, CLD_EXITED);

log_notice("Unknown personality, skipping %s", __func__);

}

static void test_exec_ignoresigpipe(Manager *m) {

test(m, "exec-ignoresigpipe-yes.service", 0, CLD_EXITED);

test(m, "exec-ignoresigpipe-no.service", SIGPIPE, CLD_KILLED);

}

static void test_exec_privatetmp(Manager *m) {

assert_se(touch("/tmp/test-exec_privatetmp") >= 0);

test(m, "exec-privatetmp-yes.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);

test(m, "exec-privatetmp-no.service", 0, CLD_EXITED);

test(m, "exec-privatetmp-disabled-by-prefix.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);

unlink("/tmp/test-exec_privatetmp");

}

static void test_exec_privatedevices(Manager *m) {

int r;

if (detect_container() > 0) {

log_notice("Testing in container, skipping %s", __func__);

return;

}

if (!is_inaccessible_available()) {

log_notice("Testing without inaccessible, skipping %s", __func__);

return;

}

test(m, "exec-privatedevices-yes.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);

test(m, "exec-privatedevices-no.service", 0, CLD_EXITED);

test(m, "exec-privatedevices-disabled-by-prefix.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);

test(m, "exec-privatedevices-yes-with-group.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);

/* We use capsh to test if the capabilities are

r = find_executable("capsh", NULL);

if (r < 0) {

log_notice_errno(r, "Could not find capsh binary, skipping remaining tests in %s: %m", __func__);

return;

}

test(m, "exec-privatedevices-yes-capability-mknod.service", 0, CLD_EXITED);

test(m, "exec-privatedevices-no-capability-mknod.service", 0, CLD_EXITED);

test(m, "exec-privatedevices-yes-capability-sys-rawio.service", 0, CLD_EXITED);

test(m, "exec-privatedevices-no-capability-sys-rawio.service", 0, CLD_EXITED);

}

static void test_exec_protecthome(Manager *m) {

if (!can_unshare) {

log_notice("Cannot reliably unshare, skipping %s", __func__);

return;

}

test(m, "exec-protecthome-tmpfs-vs-protectsystem-strict.service", 0, CLD_EXITED);

}

static void test_exec_protectkernelmodules(Manager *m) {

int r;

if (detect_container() > 0) {

log_notice("Testing in container, skipping %s", __func__);

return;

}

if (!is_inaccessible_available()) {

log_notice("Testing without inaccessible, skipping %s", __func__);

return;

}

r = find_executable("capsh", NULL);

if (r < 0) {

log_notice_errno(r, "Skipping %s, could not find capsh binary: %m", __func__);

return;

}

test(m, "exec-protectkernelmodules-no-capabilities.service", 0, CLD_EXITED);

test(m, "exec-protectkernelmodules-yes-capabilities.service", 0, CLD_EXITED);

test(m, "exec-protectkernelmodules-yes-mount-propagation.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);

}

static void test_exec_readonlypaths(Manager *m) {

test(m, "exec-readonlypaths-simple.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);

if (path_is_read_only_fs("/var") > 0) {

log_notice("Directory /var is readonly, skipping remaining tests in %s", __func__);

return;

}

test(m, "exec-readonlypaths.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);

test(m, "exec-readonlypaths-with-bindpaths.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);

test(m, "exec-readonlypaths-mount-propagation.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);

}

static void test_exec_readwritepaths(Manager *m) {

if (path_is_read_only_fs("/") > 0) {

log_notice("Root directory is readonly, skipping %s", __func__);

return;

}

test(m, "exec-readwritepaths-mount-propagation.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);

}

static void test_exec_inaccessiblepaths(Manager *m) {

if (!is_inaccessible_available()) {

log_notice("Testing without inaccessible, skipping %s", __func__);

return;

}

test(m, "exec-inaccessiblepaths-sys.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);

if (path_is_read_only_fs("/") > 0) {

log_notice("Root directory is readonly, skipping remaining tests in %s", __func__);

return;

}

test(m, "exec-inaccessiblepaths-mount-propagation.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);

}

static int on_spawn_io(sd_event_source *s, int fd, uint32_t revents, void *userdata) {

char **result = userdata;

char buf[4096];

ssize_t l;

assert_se(s);

assert_se(fd >= 0);

l = read(fd, buf, sizeof(buf) - 1);

if (l < 0) {

if (errno == EAGAIN)

goto reenable;

return 0;

}

if (l == 0)

return 0;

buf[l] = '\0';

if (result)

assert_se(strextend(result, buf));

else

log_error("ldd: %s", buf);

reenable:

/* Re-enable the event source if we did not encounter EOF */

assert_se(sd_event_source_set_enabled(s, SD_EVENT_ONESHOT) >= 0);

return 0;

}

static int on_spawn_timeout(sd_event_source *s, uint64_t usec, void *userdata) {

pid_t *pid = userdata;

assert_se(pid);

(void) kill(*pid, SIGKILL);

return 1;

}

static int on_spawn_sigchld(sd_event_source *s, const siginfo_t *si, void *userdata) {

int ret = -EIO;

assert_se(si);

if (si->si_code == CLD_EXITED)

ret = si->si_status;

sd_event_exit(sd_event_source_get_event(s), ret);

return 1;

}

static int find_libraries(const char *exec, char ***ret) {

_cleanup_(sd_event_unrefp) sd_event *e = NULL;

_cleanup_(sd_event_source_unrefp) sd_event_source *sigchld_source = NULL;

_cleanup_(sd_event_source_unrefp) sd_event_source *stdout_source = NULL;

_cleanup_(sd_event_source_unrefp) sd_event_source *stderr_source = NULL;

_cleanup_close_pair_ int outpipe[2] = {-1, -1}, errpipe[2] = {-1, -1};

_cleanup_strv_free_ char **libraries = NULL;

_cleanup_free_ char *result = NULL;

pid_t pid;

int r;

assert_se(exec);

assert_se(ret);

assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGCHLD, -1) >= 0);

assert_se(pipe2(outpipe, O_NONBLOCK|O_CLOEXEC) == 0);

assert_se(pipe2(errpipe, O_NONBLOCK|O_CLOEXEC) == 0);

r = safe_fork("(spawn-ldd)", FORK_RESET_SIGNALS|FORK_DEATHSIG|FORK_LOG, &pid);

assert_se(r >= 0);

if (r == 0) {

if (rearrange_stdio(-1, TAKE_FD(outpipe[1]), TAKE_FD(errpipe[1])) < 0)

_exit(EXIT_FAILURE);

(void) close_all_fds(NULL, 0);

execlp("ldd", "ldd", exec, NULL);

_exit(EXIT_FAILURE);

}

outpipe[1] = safe_close(outpipe[1]);

errpipe[1] = safe_close(errpipe[1]);

assert_se(sd_event_new(&e) >= 0);

assert_se(sd_event_add_time_relative(e, NULL, CLOCK_MONOTONIC,

10 * USEC_PER_SEC, USEC_PER_SEC, on_spawn_timeout, &pid) >= 0);

assert_se(sd_event_add_io(e, &stdout_source, outpipe[0], EPOLLIN, on_spawn_io, &result) >= 0);

assert_se(sd_event_source_set_enabled(stdout_source, SD_EVENT_ONESHOT) >= 0);

assert_se(sd_event_add_io(e, &stderr_source, errpipe[0], EPOLLIN, on_spawn_io, NULL) >= 0);

assert_se(sd_event_source_set_enabled(stderr_source, SD_EVENT_ONESHOT) >= 0);

assert_se(sd_event_add_child(e, &sigchld_source, pid, WEXITED, on_spawn_sigchld, NULL) >= 0);

/* SIGCHLD should be processed after IO is complete */

assert_se(sd_event_source_set_priority(sigchld_source, SD_EVENT_PRIORITY_NORMAL + 1) >= 0);

assert_se(sd_event_loop(e) >= 0);

_cleanup_strv_free_ char **v = NULL;

assert_se(strv_split_newlines_full(&v, result, 0) >= 0);

STRV_FOREACH(q, v) {

_cleanup_free_ char *word = NULL;

const char *p = *q;

r = extract_first_word(&p, &word, NULL, 0);

assert_se(r >= 0);

if (r == 0)

continue;

if (path_is_absolute(word)) {

assert_se(strv_consume(&libraries, TAKE_PTR(word)) >= 0);

continue;

}

word = mfree(word);

r = extract_first_word(&p, &word, NULL, 0);

assert_se(r >= 0);

if (r == 0)

continue;

if (!streq_ptr(word, "=>"))

continue;

word = mfree(word);

r = extract_first_word(&p, &word, NULL, 0);

assert_se(r >= 0);

if (r == 0)

continue;

if (path_is_absolute(word)) {

assert_se(strv_consume(&libraries, TAKE_PTR(word)) >= 0);

continue;

}

}

*ret = TAKE_PTR(libraries);

return 0;

}

static void test_exec_mount_apivfs(Manager *m) {

_cleanup_free_ char *fullpath_touch = NULL, *fullpath_test = NULL, *data = NULL;

_cleanup_strv_free_ char **libraries = NULL, **libraries_test = NULL;

int r;

assert_se(user_runtime_unit_dir);

r = find_executable("touch", &fullpath_touch);

if (r < 0) {

log_notice_errno(r, "Skipping %s, could not find 'touch' command: %m", __func__);

return;

}

r = find_executable("test", &fullpath_test);

if (r < 0) {

log_notice_errno(r, "Skipping %s, could not find 'test' command: %m", __func__);

return;

}

assert_se(find_libraries(fullpath_touch, &libraries) >= 0);

assert_se(find_libraries(fullpath_test, &libraries_test) >= 0);

assert_se(strv_extend_strv(&libraries, libraries_test, true) >= 0);

assert_se(strextend(&data, "[Service]\n"));

assert_se(strextend(&data, "ExecStart=", fullpath_touch, " /aaa\n"));

assert_se(strextend(&data, "ExecStart=", fullpath_test, " -f /aaa\n"));

assert_se(strextend(&data, "BindReadOnlyPaths=", fullpath_touch, "\n"));

assert_se(strextend(&data, "BindReadOnlyPaths=", fullpath_test, "\n"));

STRV_FOREACH(p, libraries)

assert_se(strextend(&data, "BindReadOnlyPaths=", *p, "\n"));

assert_se(write_drop_in(user_runtime_unit_dir, "exec-mount-apivfs-no.service", 10, "bind-mount", data) >= 0);

assert_se(mkdir_p("/tmp/test-exec-mount-apivfs-no/root", 0755) >= 0);

test(m, "exec-mount-apivfs-no.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);

(void) rm_rf("/tmp/test-exec-mount-apivfs-no/root", REMOVE_ROOT|REMOVE_PHYSICAL);

}

static void test_exec_noexecpaths(Manager *m) {

test(m, "exec-noexecpaths-simple.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);

}

static void test_exec_temporaryfilesystem(Manager *m) {

test(m, "exec-temporaryfilesystem-options.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);

test(m, "exec-temporaryfilesystem-ro.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);

test(m, "exec-temporaryfilesystem-rw.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);

test(m, "exec-temporaryfilesystem-usr.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);

}

static void test_exec_systemcallfilter(Manager *m) {

#if HAVE_SECCOMP

int r;

if (!is_seccomp_available()) {

log_notice("Seccomp not available, skipping %s", __func__);

return;

}

test(m, "exec-systemcallfilter-not-failing.service", 0, CLD_EXITED);

test(m, "exec-systemcallfilter-not-failing2.service", 0, CLD_EXITED);

test(m, "exec-systemcallfilter-not-failing3.service", 0, CLD_EXITED);

test(m, "exec-systemcallfilter-failing.service", SIGSYS, CLD_KILLED);

test(m, "exec-systemcallfilter-failing2.service", SIGSYS, CLD_KILLED);

test(m, "exec-systemcallfilter-failing3.service", SIGSYS, CLD_KILLED);

r = find_executable("python3", NULL);

if (r < 0) {

log_notice_errno(r, "Skipping remaining tests in %s, could not find python3 binary: %m", __func__);

return;

}

test(m, "exec-systemcallfilter-with-errno-name.service", errno_from_name("EILSEQ"), CLD_EXITED);

test(m, "exec-systemcallfilter-with-errno-number.service", 255, CLD_EXITED);

test(m, "exec-systemcallfilter-with-errno-multi.service", errno_from_name("EILSEQ"), CLD_EXITED);

test(m, "exec-systemcallfilter-with-errno-in-allow-list.service", errno_from_name("EILSEQ"), CLD_EXITED);

test(m, "exec-systemcallfilter-override-error-action.service", SIGSYS, CLD_KILLED);

test(m, "exec-systemcallfilter-override-error-action2.service", errno_from_name("EILSEQ"), CLD_EXITED);

}

static void test_exec_systemcallerrornumber(Manager *m) {

#if HAVE_SECCOMP

int r;

if (!is_seccomp_available()) {

log_notice("Seccomp not available, skipping %s", __func__);

return;

}

r = find_executable("python3", NULL);

if (r < 0) {

log_notice_errno(r, "Skipping %s, could not find python3 binary: %m", __func__);

return;

}

test(m, "exec-systemcallerrornumber-name.service", errno_from_name("EACCES"), CLD_EXITED);

test(m, "exec-systemcallerrornumber-number.service", 255, CLD_EXITED);

}

static void test_exec_restrictnamespaces(Manager *m) {

#if HAVE_SECCOMP

if (!is_seccomp_available()) {

log_notice("Seccomp not available, skipping %s", __func__);

return;

}

test(m, "exec-restrictnamespaces-no.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);

test(m, "exec-restrictnamespaces-yes.service", 1, CLD_EXITED);

test(m, "exec-restrictnamespaces-mnt.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);

test(m, "exec-restrictnamespaces-mnt-deny-list.service", 1, CLD_EXITED);

test(m, "exec-restrictnamespaces-merge-and.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);

test(m, "exec-restrictnamespaces-merge-or.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);

test(m, "exec-restrictnamespaces-merge-all.service", can_unshare ? 0 : EXIT_FAILURE, CLD_EXITED);

}

static void test_exec_systemcallfilter_system(Manager *m) {

#if HAVE_SECCOMP && !HAS_FEATURE_ADDRESS_SANITIZER

if (!is_seccomp_available()) {

log_notice("Seccomp not available, skipping %s", __func__);

return;

}

test(m, "exec-systemcallfilter-system-user.service", 0, CLD_EXITED);

if (!check_nobody_user_and_group()) {

log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__);

return;

}

if (!STR_IN_SET(NOBODY_USER_NAME, "nobody", "nfsnobody")) {

log_notice("Unsupported nobody user name '%s', skipping remaining tests in %s", NOBODY_USER_NAME, __func__);

return;

}

test(m, "exec-systemcallfilter-system-user-" NOBODY_USER_NAME ".service", 0, CLD_EXITED);

}

static void test_exec_user(Manager *m) {

test(m, "exec-user.service", 0, CLD_EXITED);

if (!check_nobody_user_and_group()) {

log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__);

return;

}

if (!STR_IN_SET(NOBODY_USER_NAME, "nobody", "nfsnobody")) {

log_notice("Unsupported nobody user name '%s', skipping remaining tests in %s", NOBODY_USER_NAME, __func__);

return;

}

test(m, "exec-user-" NOBODY_USER_NAME ".service", 0, CLD_EXITED);

}

static void test_exec_group(Manager *m) {

test(m, "exec-group.service", 0, CLD_EXITED);

if (!check_nobody_user_and_group()) {

log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__);

return;

}

if (!STR_IN_SET(NOBODY_GROUP_NAME, "nobody", "nfsnobody", "nogroup")) {

log_notice("Unsupported nobody group name '%s', skipping remaining tests in %s", NOBODY_GROUP_NAME, __func__);

return;

}

test(m, "exec-group-" NOBODY_GROUP_NAME ".service", 0, CLD_EXITED);

}

static void test_exec_supplementarygroups(Manager *m) {

test(m, "exec-supplementarygroups.service", 0, CLD_EXITED);

test(m, "exec-supplementarygroups-single-group.service", 0, CLD_EXITED);

test(m, "exec-supplementarygroups-single-group-user.service", 0, CLD_EXITED);

test(m, "exec-supplementarygroups-multiple-groups-default-group-user.service", 0, CLD_EXITED);

test(m, "exec-supplementarygroups-multiple-groups-withgid.service", 0, CLD_EXITED);

test(m, "exec-supplementarygroups-multiple-groups-withuid.service", 0, CLD_EXITED);

}

static char* private_directory_bad(Manager *m) {

/* This mirrors setup_exec_directory(). */

for (ExecDirectoryType dt = 0; dt < _EXEC_DIRECTORY_TYPE_MAX; dt++) {

_cleanup_free_ char *p = NULL;

struct stat st;

assert_se(p = path_join(m->prefix[dt], "private"));

if (stat(p, &st) >= 0 &&

(st.st_mode & (S_IRWXG|S_IRWXO)))

return TAKE_PTR(p);

}

return NULL;

}

static void test_exec_dynamicuser(Manager *m) {

_cleanup_free_ char *bad = private_directory_bad(m);

if (bad) {

log_warning("%s: %s has bad permissions, skipping test.", __func__, bad);

return;

}

if (strstr_ptr(ci_environment(), "github-actions")) {

log_notice("%s: skipping test on GH Actions because of systemd/systemd#10337", __func__);

return;

}

test(m, "exec-dynamicuser-fixeduser.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);

if (check_user_has_group_with_same_name("adm"))

test(m, "exec-dynamicuser-fixeduser-adm.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);

if (check_user_has_group_with_same_name("games"))

test(m, "exec-dynamicuser-fixeduser-games.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);

test(m, "exec-dynamicuser-fixeduser-one-supplementarygroup.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);

test(m, "exec-dynamicuser-supplementarygroups.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);

test(m, "exec-dynamicuser-statedir.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);

(void) rm_rf("/var/lib/quux", REMOVE_ROOT|REMOVE_PHYSICAL);

(void) rm_rf("/var/lib/test-dynamicuser-migrate", REMOVE_ROOT|REMOVE_PHYSICAL);

(void) rm_rf("/var/lib/test-dynamicuser-migrate2", REMOVE_ROOT|REMOVE_PHYSICAL);

(void) rm_rf("/var/lib/waldo", REMOVE_ROOT|REMOVE_PHYSICAL);

(void) rm_rf("/var/lib/private/quux", REMOVE_ROOT|REMOVE_PHYSICAL);

(void) rm_rf("/var/lib/private/test-dynamicuser-migrate", REMOVE_ROOT|REMOVE_PHYSICAL);

(void) rm_rf("/var/lib/private/test-dynamicuser-migrate2", REMOVE_ROOT|REMOVE_PHYSICAL);

(void) rm_rf("/var/lib/private/waldo", REMOVE_ROOT|REMOVE_PHYSICAL);

test(m, "exec-dynamicuser-statedir-migrate-step1.service", 0, CLD_EXITED);

test(m, "exec-dynamicuser-statedir-migrate-step2.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);

test(m, "exec-dynamicuser-statedir-migrate-step1.service", 0, CLD_EXITED);

(void) rm_rf("/var/lib/test-dynamicuser-migrate", REMOVE_ROOT|REMOVE_PHYSICAL);

(void) rm_rf("/var/lib/test-dynamicuser-migrate2", REMOVE_ROOT|REMOVE_PHYSICAL);

(void) rm_rf("/var/lib/private/test-dynamicuser-migrate", REMOVE_ROOT|REMOVE_PHYSICAL);

(void) rm_rf("/var/lib/private/test-dynamicuser-migrate2", REMOVE_ROOT|REMOVE_PHYSICAL);

test(m, "exec-dynamicuser-runtimedirectory1.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);

test(m, "exec-dynamicuser-runtimedirectory2.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);

test(m, "exec-dynamicuser-runtimedirectory3.service", can_unshare ? 0 : EXIT_NAMESPACE, CLD_EXITED);

}

static void test_exec_environment(Manager *m) {

test(m, "exec-environment-no-substitute.service", 0, CLD_EXITED);

test(m, "exec-environment.service", 0, CLD_EXITED);

test(m, "exec-environment-multiple.service", 0, CLD_EXITED);

test(m, "exec-environment-empty.service", 0, CLD_EXITED);

}

static void test_exec_environmentfile(Manager *m) {

static const char e[] =

"VAR1='word1 word2'\n"

"VAR2=word3 \n"

"# comment1\n"

"\n"

"; comment2\n"

" ; # comment3\n"

"line without an equal\n"

"VAR3='$word 5 6'\n"

"VAR4='new\nline'\n"

"VAR5=password\\with\\backslashes";

int r;

r = write_string_file("/tmp/test-exec_environmentfile.conf", e, WRITE_STRING_FILE_CREATE);

assert_se(r == 0);

test(m, "exec-environmentfile.service", 0, CLD_EXITED);

(void) unlink("/tmp/test-exec_environmentfile.conf");

}

static void test_exec_passenvironment(Manager *m) {

/* test-execute runs under MANAGER_USER which, by default, forwards all

assert_se(setenv("VAR1", "word1 word2", 1) == 0);

assert_se(setenv("VAR2", "word3", 1) == 0);

assert_se(setenv("VAR3", "$word 5 6", 1) == 0);

assert_se(setenv("VAR4", "new\nline", 1) == 0);

assert_se(setenv("VAR5", "passwordwithbackslashes", 1) == 0);

test(m, "exec-passenvironment.service", 0, CLD_EXITED);

test(m, "exec-passenvironment-repeated.service", 0, CLD_EXITED);

test(m, "exec-passenvironment-empty.service", 0, CLD_EXITED);

assert_se(unsetenv("VAR1") == 0);

assert_se(unsetenv("VAR2") == 0);

assert_se(unsetenv("VAR3") == 0);

assert_se(unsetenv("VAR4") == 0);

assert_se(unsetenv("VAR5") == 0);

test(m, "exec-passenvironment-absent.service", 0, CLD_EXITED);

}

static void test_exec_umask(Manager *m) {

test(m, "exec-umask-default.service", 0, CLD_EXITED);

test(m, "exec-umask-0177.service", 0, CLD_EXITED);

}

static void test_exec_runtimedirectory(Manager *m) {

test(m, "exec-runtimedirectory.service", 0, CLD_EXITED);

test(m, "exec-runtimedirectory-mode.service", 0, CLD_EXITED);

test(m, "exec-runtimedirectory-owner.service", 0, CLD_EXITED);

if (!check_nobody_user_and_group()) {

log_notice("nobody user/group is not synthesized or may conflict to other entries, skipping remaining tests in %s", __func__);

return;

}

if (!STR_IN_SET(NOBODY_GROUP_NAME, "nobody", "nfsnobody", "nogroup")) {

log_notice("Unsupported nobody group name '%s', skipping remaining tests in %s", NOBODY_GROUP_NAME, __func__);

return;

}

test(m, "exec-runtimedirectory-owner-" NOBODY_GROUP_NAME ".service", 0, CLD_EXITED);

}

static void test_exec_capabilityboundingset(Manager *m) {

int r;

r = find_executable("capsh", NULL);

if (r < 0) {

log_notice_errno(r, "Skipping %s, could not find capsh binary: %m", __func__);

return;

}

if (have_effective_cap(CAP_CHOWN) <= 0 ||

have_effective_cap(CAP_FOWNER) <= 0 ||

have_effective_cap(CAP_KILL) <= 0) {

log_notice("Skipping %s, this process does not have enough capabilities", __func__);

return;

}

test(m, "exec-capabilityboundingset-simple.service", 0, CLD_EXITED);

test(m, "exec-capabilityboundingset-reset.service", 0, CLD_EXITED);

test(m, "exec-capabilityboundingset-merge.service", 0, CLD_EXITED);

test(m, "exec-capabilityboundingset-invert.service", 0, CLD_EXITED);

}