-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2013 Zbigniew Jędrzejewski-Szmek
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
+/* SPDX-License-Identifier: LGPL-2.1+ */
#include "alloc-util.h"
+#include "build.h"
#include "cgroup-util.h"
#include "dirent-util.h"
#include "fd-util.h"
-#include "formats-util.h"
+#include "format-util.h"
#include "parse-util.h"
+#include "proc-cmdline.h"
#include "process-util.h"
+#include "special.h"
+#include "stat-util.h"
#include "string-util.h"
+#include "strv.h"
#include "test-helper.h"
+#include "tests.h"
#include "user-util.h"
#include "util.h"
static void test_path_get_slice(void) {
check_p_g_slice("/user.slice", 0, "user.slice");
- check_p_g_slice("/foobar", 0, "-.slice");
+ check_p_g_slice("/foobar", 0, SPECIAL_ROOT_SLICE);
check_p_g_slice("/user.slice/user-waldo.slice", 0, "user-waldo.slice");
- check_p_g_slice("", 0, "-.slice");
- check_p_g_slice("foobar", 0, "-.slice");
+ check_p_g_slice("", 0, SPECIAL_ROOT_SLICE);
+ check_p_g_slice("foobar", 0, SPECIAL_ROOT_SLICE);
check_p_g_slice("foobar.slice", 0, "foobar.slice");
check_p_g_slice("foo.slice/foo-bar.slice/waldo.service", 0, "foo-bar.slice");
}
check_p_g_u_slice("foobar.slice", -ENXIO, NULL);
check_p_g_u_slice("foo.slice/foo-bar.slice/waldo.service", -ENXIO, NULL);
- check_p_g_u_slice("foo.slice/foo-bar.slice/user@1000.service", 0, "-.slice");
- check_p_g_u_slice("foo.slice/foo-bar.slice/user@1000.service/", 0, "-.slice");
- check_p_g_u_slice("foo.slice/foo-bar.slice/user@1000.service///", 0, "-.slice");
- check_p_g_u_slice("foo.slice/foo-bar.slice/user@1000.service/waldo.service", 0, "-.slice");
+ check_p_g_u_slice("foo.slice/foo-bar.slice/user@1000.service", 0, SPECIAL_ROOT_SLICE);
+ check_p_g_u_slice("foo.slice/foo-bar.slice/user@1000.service/", 0, SPECIAL_ROOT_SLICE);
+ check_p_g_u_slice("foo.slice/foo-bar.slice/user@1000.service///", 0, SPECIAL_ROOT_SLICE);
+ check_p_g_u_slice("foo.slice/foo-bar.slice/user@1000.service/waldo.service", 0, SPECIAL_ROOT_SLICE);
check_p_g_u_slice("foo.slice/foo-bar.slice/user@1000.service/piep.slice/foo.service", 0, "piep.slice");
check_p_g_u_slice("/foo.slice//foo-bar.slice/user@1000.service/piep.slice//piep-pap.slice//foo.service", 0, "piep-pap.slice");
}
pid_t pid;
uid_t uid = UID_INVALID;
- if (de->d_type != DT_DIR &&
- de->d_type != DT_UNKNOWN)
+ if (!IN_SET(de->d_type, DT_DIR, DT_UNKNOWN))
continue;
r = parse_pid(de->d_name, &pid);
static void test_slice_to_path_one(const char *unit, const char *path, int error) {
_cleanup_free_ char *ret = NULL;
+ int r;
+
+ log_info("unit: %s", unit);
- assert_se(cg_slice_to_path(unit, &ret) == error);
+ r = cg_slice_to_path(unit, &ret);
+ log_info("actual: %s / %d", strnull(ret), r);
+ log_info("expect: %s / %d", strnull(path), error);
+ assert_se(r == error);
assert_se(streq_ptr(ret, path));
}
static void test_slice_to_path(void) {
-
test_slice_to_path_one("foobar.slice", "foobar.slice", 0);
test_slice_to_path_one("foobar-waldo.slice", "foobar.slice/foobar-waldo.slice", 0);
test_slice_to_path_one("foobar-waldo.service", NULL, -EINVAL);
- test_slice_to_path_one("-.slice", "", 0);
+ test_slice_to_path_one(SPECIAL_ROOT_SLICE, "", 0);
test_slice_to_path_one("--.slice", NULL, -EINVAL);
test_slice_to_path_one("-", NULL, -EINVAL);
test_slice_to_path_one("-foo-.slice", NULL, -EINVAL);
test_slice_to_path_one("foo.slice/foo--bar.slice", NULL, -EINVAL);
test_slice_to_path_one("a-b.slice", "a.slice/a-b.slice", 0);
test_slice_to_path_one("a-b-c-d-e.slice", "a.slice/a-b.slice/a-b-c.slice/a-b-c-d.slice/a-b-c-d-e.slice", 0);
+
+ test_slice_to_path_one("foobar@.slice", NULL, -EINVAL);
+ test_slice_to_path_one("foobar@waldo.slice", NULL, -EINVAL);
+ test_slice_to_path_one("foobar@waldo.service", NULL, -EINVAL);
+ test_slice_to_path_one("-foo@-.slice", NULL, -EINVAL);
+ test_slice_to_path_one("-foo@.slice", NULL, -EINVAL);
+ test_slice_to_path_one("foo@-.slice", NULL, -EINVAL);
+ test_slice_to_path_one("foo@@bar.slice", NULL, -EINVAL);
+ test_slice_to_path_one("foo.slice/foo@@bar.slice", NULL, -EINVAL);
}
static void test_shift_path_one(const char *raw, const char *root, const char *shifted) {
test_shift_path_one("/foobar/waldo", "/", "/foobar/waldo");
test_shift_path_one("/foobar/waldo", "", "/foobar/waldo");
test_shift_path_one("/foobar/waldo", "/foobar", "/waldo");
- test_shift_path_one("/foobar/waldo", "/fuckfuck", "/foobar/waldo");
+ test_shift_path_one("/foobar/waldo", "/hogehoge", "/foobar/waldo");
}
static void test_mask_supported(void) {
printf("'%s' is supported: %s\n", cgroup_controller_to_string(c), yes_no(m & CGROUP_CONTROLLER_TO_MASK(c)));
}
+static void test_is_cgroup_fs(void) {
+ struct statfs sfs;
+ assert_se(statfs("/sys/fs/cgroup", &sfs) == 0);
+ if (is_temporary_fs(&sfs))
+ assert_se(statfs("/sys/fs/cgroup/systemd", &sfs) == 0);
+ assert_se(is_cgroup_fs(&sfs));
+}
+
+static void test_fd_is_cgroup_fs(void) {
+ int fd;
+
+ fd = open("/sys/fs/cgroup", O_RDONLY|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW);
+ assert_se(fd >= 0);
+ if (fd_is_temporary_fs(fd)) {
+ fd = safe_close(fd);
+ fd = open("/sys/fs/cgroup/systemd", O_RDONLY|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW);
+ assert_se(fd >= 0);
+ }
+ assert_se(fd_is_cgroup_fs(fd));
+ fd = safe_close(fd);
+}
+
+static void test_is_wanted_print(bool header) {
+ _cleanup_free_ char *cmdline = NULL;
+
+ log_info("-- %s --", __func__);
+ assert_se(proc_cmdline(&cmdline) >= 0);
+ log_info("cmdline: %s", cmdline);
+ if (header) {
+
+ log_info(_CGROUP_HIEARCHY_);
+ (void) system("findmnt -n /sys/fs/cgroup");
+ }
+
+ log_info("is_unified_wanted() → %s", yes_no(cg_is_unified_wanted()));
+ log_info("is_hybrid_wanted() → %s", yes_no(cg_is_hybrid_wanted()));
+ log_info("is_legacy_wanted() → %s", yes_no(cg_is_legacy_wanted()));
+ log_info(" ");
+}
+
+static void test_is_wanted(void) {
+ assert_se(setenv("SYSTEMD_PROC_CMDLINE",
+ "systemd.unified_cgroup_hierarchy", 1) >= 0);
+ test_is_wanted_print(false);
+
+ assert_se(setenv("SYSTEMD_PROC_CMDLINE",
+ "systemd.unified_cgroup_hierarchy=0", 1) >= 0);
+ test_is_wanted_print(false);
+
+ assert_se(setenv("SYSTEMD_PROC_CMDLINE",
+ "systemd.unified_cgroup_hierarchy=0 "
+ "systemd.legacy_systemd_cgroup_controller", 1) >= 0);
+ test_is_wanted_print(false);
+
+ assert_se(setenv("SYSTEMD_PROC_CMDLINE",
+ "systemd.unified_cgroup_hierarchy=0 "
+ "systemd.legacy_systemd_cgroup_controller=0", 1) >= 0);
+ test_is_wanted_print(false);
+
+ /* cgroup_no_v1=all implies unified cgroup hierarchy, unless otherwise
+ * explicitly specified. */
+ assert_se(setenv("SYSTEMD_PROC_CMDLINE",
+ "cgroup_no_v1=all", 1) >= 0);
+ test_is_wanted_print(false);
+
+ assert_se(setenv("SYSTEMD_PROC_CMDLINE",
+ "cgroup_no_v1=all "
+ "systemd.unified_cgroup_hierarchy=0", 1) >= 0);
+ test_is_wanted_print(false);
+}
+
+static void test_cg_tests(void) {
+ int all, hybrid, systemd, r;
+
+ r = cg_unified_flush();
+ if (r == -ENOMEDIUM) {
+ log_notice_errno(r, "Skipping cg hierarchy tests: %m");
+ return;
+ }
+ assert_se(r == 0);
+
+ all = cg_all_unified();
+ assert_se(IN_SET(all, 0, 1));
+
+ hybrid = cg_hybrid_unified();
+ assert_se(IN_SET(hybrid, 0, 1));
+
+ systemd = cg_unified_controller(SYSTEMD_CGROUP_CONTROLLER);
+ assert_se(IN_SET(systemd, 0, 1));
+
+ if (all) {
+ assert_se(systemd);
+ assert_se(!hybrid);
+
+ } else if (hybrid) {
+ assert_se(systemd);
+ assert_se(!all);
+
+ } else
+ assert_se(!systemd);
+}
+
+static void test_cg_get_keyed_attribute(void) {
+ _cleanup_free_ char *val = NULL;
+ char *vals3[3] = {}, *vals3a[3] = {};
+ int i, r;
+
+ r = cg_get_keyed_attribute("cpu", "/init.scope", "no_such_file", STRV_MAKE("no_such_attr"), &val);
+ if (r == -ENOMEDIUM) {
+ log_info_errno(r, "Skipping most of %s, /sys/fs/cgroup not accessible: %m", __func__);
+ return;
+ }
+
+ assert_se(r == -ENOENT);
+ assert_se(val == NULL);
+
+ if (access("/sys/fs/cgroup/init.scope/cpu.stat", R_OK) < 0) {
+ log_info_errno(errno, "Skipping most of %s, /init.scope/cpu.stat not accessible: %m", __func__);
+ return;
+ }
+
+ assert_se(cg_get_keyed_attribute("cpu", "/init.scope", "cpu.stat", STRV_MAKE("no_such_attr"), &val) == -ENXIO);
+ assert_se(val == NULL);
+
+ assert_se(cg_get_keyed_attribute("cpu", "/init.scope", "cpu.stat", STRV_MAKE("usage_usec"), &val) == 0);
+ log_info("cpu /init.scope cpu.stat [usage_usec] → \"%s\"", val);
+
+ assert_se(cg_get_keyed_attribute("cpu", "/init.scope", "cpu.stat", STRV_MAKE("usage_usec", "no_such_attr"), vals3) == -ENXIO);
+
+ assert_se(cg_get_keyed_attribute("cpu", "/init.scope", "cpu.stat", STRV_MAKE("usage_usec", "usage_usec"), vals3) == -ENXIO);
+
+ assert_se(cg_get_keyed_attribute("cpu", "/init.scope", "cpu.stat",
+ STRV_MAKE("usage_usec", "user_usec", "system_usec"), vals3) == 0);
+ log_info("cpu /init.scope cpu.stat [usage_usec user_usec system_usec] → \"%s\", \"%s\", \"%s\"",
+ vals3[0], vals3[1], vals3[2]);
+
+ assert_se(cg_get_keyed_attribute("cpu", "/init.scope", "cpu.stat",
+ STRV_MAKE("system_usec", "user_usec", "usage_usec"), vals3a) == 0);
+ log_info("cpu /init.scope cpu.stat [system_usec user_usec usage_usec] → \"%s\", \"%s\", \"%s\"",
+ vals3a[0], vals3a[1], vals3a[2]);
+
+ for (i = 0; i < 3; i++) {
+ free(vals3[i]);
+ free(vals3a[i]);
+ }
+}
+
int main(void) {
+ test_setup_logging(LOG_DEBUG);
+
test_path_decode_unit();
test_path_get_unit();
test_path_get_user_unit();
test_slice_to_path();
test_shift_path();
TEST_REQ_RUNNING_SYSTEMD(test_mask_supported());
+ TEST_REQ_RUNNING_SYSTEMD(test_is_cgroup_fs());
+ TEST_REQ_RUNNING_SYSTEMD(test_fd_is_cgroup_fs());
+ test_is_wanted_print(true);
+ test_is_wanted_print(false); /* run twice to test caching */
+ test_is_wanted();
+ test_cg_tests();
+ test_cg_get_keyed_attribute();
return 0;
}
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