/* SPDX-License-Identifier: LGPL-2.1-or-later */ #include #include "cgroup-setup.h" #include "cgroup-util.h" #include "errno-util.h" #include "path-util.h" #include "process-util.h" #include "string-util.h" #include "tests.h" static void test_cg_split_spec(void) { char *c, *p; log_info("/* %s */", __func__); assert_se(cg_split_spec("foobar:/", &c, &p) == 0); assert_se(streq(c, "foobar")); assert_se(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_se(c == NULL); assert_se(streq(p, "/")); p = mfree(p); assert_se(cg_split_spec("foo", &c, &p) >= 0); assert_se(streq(c, "foo")); assert_se(p == NULL); c = mfree(c); } static void test_cg_create(void) { log_info("/* %s */", __func__); int r; r = cg_unified_cached(false); if (r == -ENOMEDIUM) { log_tests_skipped("cgroup 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); 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_se(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(SYSTEMD_CGROUP_CONTROLLER, test_a, 0, 0, NULL, NULL, NULL) == 0); assert_se(cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, 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(SYSTEMD_CGROUP_CONTROLLER, test_a, 0, 0, NULL, NULL, NULL) > 0); assert_se(cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, test_b, 0, 0, NULL, NULL, NULL) == 0); 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); } int main(int argc, char *argv[]) { test_setup_logging(LOG_DEBUG); test_cg_split_spec(); test_cg_create(); return 0; }