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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <unistd.h>
#include "cgroup-setup.h"
#include "cgroup-util.h"
#include "errno-util.h"
#include "fd-util.h"
#include "path-util.h"
#include "process-util.h"
#include "string-util.h"
#include "tests.h"
TEST(cg_split_spec) {
char *c, *p;
assert_se(cg_split_spec("foobar:/", &c, &p) == 0);
ASSERT_STREQ(c, "foobar");
ASSERT_STREQ(p, "/");
c = mfree(c);
p = mfree(p);
assert_se(cg_split_spec("foobar:", &c, &p) == 0);
c = mfree(c);
p = mfree(p);
assert_se(cg_split_spec("foobar:asdfd", &c, &p) < 0);
assert_se(cg_split_spec(":///", &c, &p) < 0);
assert_se(cg_split_spec(":", &c, &p) < 0);
assert_se(cg_split_spec("", &c, &p) < 0);
assert_se(cg_split_spec("fo/obar:/", &c, &p) < 0);
assert_se(cg_split_spec("/", &c, &p) >= 0);
ASSERT_NULL(c);
ASSERT_STREQ(p, "/");
p = mfree(p);
assert_se(cg_split_spec("foo", &c, &p) >= 0);
ASSERT_STREQ(c, "foo");
ASSERT_NULL(p);
c = mfree(c);
}
TEST(cg_create) {
int r;
r = cg_unified_cached(false);
if (IN_SET(r, -ENOMEDIUM, -ENOENT)) {
log_tests_skipped("cgroupfs is not mounted");
return;
}
assert_se(r >= 0);
_cleanup_free_ char *here = NULL;
assert_se(cg_pid_get_path_shifted(0, NULL, &here) >= 0);
const char *test_a = prefix_roota(here, "/test-a"),
*test_b = prefix_roota(here, "/test-b"),
*test_c = prefix_roota(here, "/test-b/test-c"),
*test_d = prefix_roota(here, "/test-b/test-d");
char *path;
log_info("Paths for test:\n%s\n%s", test_a, test_b);
/* Possibly clean up left-overs from aboted previous runs */
(void) cg_trim(SYSTEMD_CGROUP_CONTROLLER, test_a, /* delete_root= */ true);
(void) cg_trim(SYSTEMD_CGROUP_CONTROLLER, test_b, /* delete_root= */ true);
r = cg_create(SYSTEMD_CGROUP_CONTROLLER, test_a);
if (IN_SET(r, -EPERM, -EACCES, -EROFS)) {
log_info_errno(r, "Skipping %s: %m", __func__);
return;
}
assert_se(r == 1);
assert_se(cg_create(SYSTEMD_CGROUP_CONTROLLER, test_a) == 0);
assert_se(cg_create(SYSTEMD_CGROUP_CONTROLLER, test_b) == 1);
assert_se(cg_create(SYSTEMD_CGROUP_CONTROLLER, test_c) == 1);
assert_se(cg_create_and_attach(SYSTEMD_CGROUP_CONTROLLER, test_b, 0) == 0);
assert_se(cg_pid_get_path(SYSTEMD_CGROUP_CONTROLLER, getpid_cached(), &path) == 0);
ASSERT_STREQ(path, test_b);
free(path);
assert_se(cg_attach(SYSTEMD_CGROUP_CONTROLLER, test_a, 0) == 0);
assert_se(cg_pid_get_path(SYSTEMD_CGROUP_CONTROLLER, getpid_cached(), &path) == 0);
assert_se(path_equal(path, test_a));
free(path);
assert_se(cg_create_and_attach(SYSTEMD_CGROUP_CONTROLLER, test_d, 0) == 1);
assert_se(cg_pid_get_path(SYSTEMD_CGROUP_CONTROLLER, getpid_cached(), &path) == 0);
assert_se(path_equal(path, test_d));
free(path);
assert_se(cg_get_path(SYSTEMD_CGROUP_CONTROLLER, test_d, NULL, &path) == 0);
log_debug("test_d: %s", path);
const char *full_d;
if (cg_all_unified())
full_d = strjoina("/sys/fs/cgroup", test_d);
else if (cg_hybrid_unified())
full_d = strjoina("/sys/fs/cgroup/unified", test_d);
else
full_d = strjoina("/sys/fs/cgroup/systemd", test_d);
assert_se(path_equal(path, full_d));
free(path);
assert_se(cg_is_empty(SYSTEMD_CGROUP_CONTROLLER, test_a) > 0);
assert_se(cg_is_empty(SYSTEMD_CGROUP_CONTROLLER, test_b) > 0);
assert_se(cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, test_a) > 0);
assert_se(cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, test_b) == 0);
assert_se(cg_kill_recursive(test_a, 0, 0, NULL, NULL, NULL) == 0);
assert_se(cg_kill_recursive(test_b, 0, 0, NULL, NULL, NULL) > 0);
assert_se(cg_migrate_recursive(SYSTEMD_CGROUP_CONTROLLER, test_b, SYSTEMD_CGROUP_CONTROLLER, test_a, 0) > 0);
assert_se(cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, test_a) == 0);
assert_se(cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, test_b) > 0);
assert_se(cg_kill_recursive(test_a, 0, 0, NULL, NULL, NULL) > 0);
assert_se(cg_kill_recursive(test_b, 0, 0, NULL, NULL, NULL) == 0);
(void) cg_trim(SYSTEMD_CGROUP_CONTROLLER, test_b, false);
assert_se(cg_rmdir(SYSTEMD_CGROUP_CONTROLLER, test_b) == 0);
assert_se(cg_rmdir(SYSTEMD_CGROUP_CONTROLLER, test_a) < 0);
assert_se(cg_migrate_recursive(SYSTEMD_CGROUP_CONTROLLER, test_a, SYSTEMD_CGROUP_CONTROLLER, here, 0) > 0);
assert_se(cg_rmdir(SYSTEMD_CGROUP_CONTROLLER, test_a) == 0);
}
TEST(id) {
_cleanup_free_ char *p = NULL, *p2 = NULL;
_cleanup_close_ int fd = -EBADF, fd2 = -EBADF;
uint64_t id, id2;
int r;
r = cg_all_unified();
if (r == 0) {
log_tests_skipped("skipping cgroupid test, not running in unified mode");
return;
}
if (IN_SET(r, -ENOMEDIUM, -ENOENT)) {
log_tests_skipped("cgroupfs is not mounted");
return;
}
assert_se(r > 0);
fd = cg_path_open(SYSTEMD_CGROUP_CONTROLLER, "/");
assert_se(fd >= 0);
assert_se(fd_get_path(fd, &p) >= 0);
assert_se(path_equal(p, "/sys/fs/cgroup"));
assert_se(cg_fd_get_cgroupid(fd, &id) >= 0);
fd2 = cg_cgroupid_open(fd, id);
if (ERRNO_IS_NEG_PRIVILEGE(fd2))
log_notice("Skipping open-by-cgroup-id test because lacking privs.");
else {
assert_se(fd2 >= 0);
assert_se(fd_get_path(fd2, &p2) >= 0);
assert_se(path_equal(p2, "/sys/fs/cgroup"));
assert_se(cg_fd_get_cgroupid(fd2, &id2) >= 0);
assert_se(id == id2);
assert_se(inode_same_at(fd, NULL, fd2, NULL, AT_EMPTY_PATH) > 0);
}
}
DEFINE_TEST_MAIN(LOG_DEBUG);
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