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Diffstat (limited to 'src/test/test-cgroup-util.c')
| -rw-r--r-- | src/test/test-cgroup-util.c | 329 |
1 files changed, 329 insertions, 0 deletions
diff --git a/src/test/test-cgroup-util.c b/src/test/test-cgroup-util.c new file mode 100644 index 0000000000..43f8906172 --- /dev/null +++ b/src/test/test-cgroup-util.c @@ -0,0 +1,329 @@ +/*** + 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/>. +***/ + +#include "alloc-util.h" +#include "cgroup-util.h" +#include "dirent-util.h" +#include "fd-util.h" +#include "formats-util.h" +#include "parse-util.h" +#include "process-util.h" +#include "string-util.h" +#include "test-helper.h" +#include "user-util.h" +#include "util.h" + +static void check_p_d_u(const char *path, int code, const char *result) { + _cleanup_free_ char *unit = NULL; + int r; + + r = cg_path_decode_unit(path, &unit); + printf("%s: %s → %s %d expected %s %d\n", __func__, path, unit, r, result, code); + assert_se(r == code); + assert_se(streq_ptr(unit, result)); +} + +static void test_path_decode_unit(void) { + check_p_d_u("getty@tty2.service", 0, "getty@tty2.service"); + check_p_d_u("getty@tty2.service/", 0, "getty@tty2.service"); + check_p_d_u("getty@tty2.service/xxx", 0, "getty@tty2.service"); + check_p_d_u("getty@.service/", -ENXIO, NULL); + check_p_d_u("getty@.service", -ENXIO, NULL); + check_p_d_u("getty.service", 0, "getty.service"); + check_p_d_u("getty", -ENXIO, NULL); + check_p_d_u("getty/waldo", -ENXIO, NULL); + check_p_d_u("_cpu.service", 0, "cpu.service"); +} + +static void check_p_g_u(const char *path, int code, const char *result) { + _cleanup_free_ char *unit = NULL; + int r; + + r = cg_path_get_unit(path, &unit); + printf("%s: %s → %s %d expected %s %d\n", __func__, path, unit, r, result, code); + assert_se(r == code); + assert_se(streq_ptr(unit, result)); +} + +static void test_path_get_unit(void) { + check_p_g_u("/system.slice/foobar.service/sdfdsaf", 0, "foobar.service"); + check_p_g_u("/system.slice/getty@tty5.service", 0, "getty@tty5.service"); + check_p_g_u("/system.slice/getty@tty5.service/aaa/bbb", 0, "getty@tty5.service"); + check_p_g_u("/system.slice/getty@tty5.service/", 0, "getty@tty5.service"); + check_p_g_u("/system.slice/getty@tty6.service/tty5", 0, "getty@tty6.service"); + check_p_g_u("sadfdsafsda", -ENXIO, NULL); + check_p_g_u("/system.slice/getty####@tty6.service/xxx", -ENXIO, NULL); + check_p_g_u("/system.slice/system-waldo.slice/foobar.service/sdfdsaf", 0, "foobar.service"); + check_p_g_u("/system.slice/system-waldo.slice/_cpu.service/sdfdsaf", 0, "cpu.service"); + check_p_g_u("/user.slice/user-1000.slice/user@1000.service/server.service", 0, "user@1000.service"); + check_p_g_u("/user.slice/user-1000.slice/user@.service/server.service", -ENXIO, NULL); +} + +static void check_p_g_u_u(const char *path, int code, const char *result) { + _cleanup_free_ char *unit = NULL; + int r; + + r = cg_path_get_user_unit(path, &unit); + printf("%s: %s → %s %d expected %s %d\n", __func__, path, unit, r, result, code); + assert_se(r == code); + assert_se(streq_ptr(unit, result)); +} + +static void test_path_get_user_unit(void) { + check_p_g_u_u("/user.slice/user-1000.slice/session-2.scope/foobar.service", 0, "foobar.service"); + check_p_g_u_u("/user.slice/user-1000.slice/session-2.scope/waldo.slice/foobar.service", 0, "foobar.service"); + check_p_g_u_u("/user.slice/user-1002.slice/session-2.scope/foobar.service/waldo", 0, "foobar.service"); + check_p_g_u_u("/user.slice/user-1000.slice/session-2.scope/foobar.service/waldo/uuuux", 0, "foobar.service"); + check_p_g_u_u("/user.slice/user-1000.slice/session-2.scope/waldo/waldo/uuuux", -ENXIO, NULL); + check_p_g_u_u("/user.slice/user-1000.slice/session-2.scope/foobar@pie.service/pa/po", 0, "foobar@pie.service"); + check_p_g_u_u("/session-2.scope/foobar@pie.service/pa/po", 0, "foobar@pie.service"); + check_p_g_u_u("/xyz.slice/xyz-waldo.slice/session-77.scope/foobar@pie.service/pa/po", 0, "foobar@pie.service"); + check_p_g_u_u("/meh.service", -ENXIO, NULL); + check_p_g_u_u("/session-3.scope/_cpu.service", 0, "cpu.service"); + check_p_g_u_u("/user.slice/user-1000.slice/user@1000.service/server.service", 0, "server.service"); + check_p_g_u_u("/user.slice/user-1000.slice/user@1000.service/foobar.slice/foobar@pie.service", 0, "foobar@pie.service"); + check_p_g_u_u("/user.slice/user-1000.slice/user@.service/server.service", -ENXIO, NULL); +} + +static void check_p_g_s(const char *path, int code, const char *result) { + _cleanup_free_ char *s = NULL; + + assert_se(cg_path_get_session(path, &s) == code); + assert_se(streq_ptr(s, result)); +} + +static void test_path_get_session(void) { + check_p_g_s("/user.slice/user-1000.slice/session-2.scope/foobar.service", 0, "2"); + check_p_g_s("/session-3.scope", 0, "3"); + check_p_g_s("/session-.scope", -ENXIO, NULL); + check_p_g_s("", -ENXIO, NULL); +} + +static void check_p_g_o_u(const char *path, int code, uid_t result) { + uid_t uid = 0; + + assert_se(cg_path_get_owner_uid(path, &uid) == code); + assert_se(uid == result); +} + +static void test_path_get_owner_uid(void) { + check_p_g_o_u("/user.slice/user-1000.slice/session-2.scope/foobar.service", 0, 1000); + check_p_g_o_u("/user.slice/user-1006.slice", 0, 1006); + check_p_g_o_u("", -ENXIO, 0); +} + +static void check_p_g_slice(const char *path, int code, const char *result) { + _cleanup_free_ char *s = NULL; + + assert_se(cg_path_get_slice(path, &s) == code); + assert_se(streq_ptr(s, result)); +} + +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("/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("foobar.slice", 0, "foobar.slice"); + check_p_g_slice("foo.slice/foo-bar.slice/waldo.service", 0, "foo-bar.slice"); +} + +static void check_p_g_u_slice(const char *path, int code, const char *result) { + _cleanup_free_ char *s = NULL; + + assert_se(cg_path_get_user_slice(path, &s) == code); + assert_se(streq_ptr(s, result)); +} + +static void test_path_get_user_slice(void) { + check_p_g_u_slice("/user.slice", -ENXIO, NULL); + check_p_g_u_slice("/foobar", -ENXIO, NULL); + check_p_g_u_slice("/user.slice/user-waldo.slice", -ENXIO, NULL); + check_p_g_u_slice("", -ENXIO, NULL); + check_p_g_u_slice("foobar", -ENXIO, NULL); + 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/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"); +} + +static void test_get_paths(void) { + _cleanup_free_ char *a = NULL; + + assert_se(cg_get_root_path(&a) >= 0); + log_info("Root = %s", a); +} + +static void test_proc(void) { + _cleanup_closedir_ DIR *d = NULL; + struct dirent *de; + int r; + + d = opendir("/proc"); + assert_se(d); + + FOREACH_DIRENT(de, d, break) { + _cleanup_free_ char *path = NULL, *path_shifted = NULL, *session = NULL, *unit = NULL, *user_unit = NULL, *machine = NULL, *slice = NULL; + pid_t pid; + uid_t uid = UID_INVALID; + + if (de->d_type != DT_DIR && + de->d_type != DT_UNKNOWN) + continue; + + r = parse_pid(de->d_name, &pid); + if (r < 0) + continue; + + if (is_kernel_thread(pid)) + continue; + + cg_pid_get_path(SYSTEMD_CGROUP_CONTROLLER, pid, &path); + cg_pid_get_path_shifted(pid, NULL, &path_shifted); + cg_pid_get_owner_uid(pid, &uid); + cg_pid_get_session(pid, &session); + cg_pid_get_unit(pid, &unit); + cg_pid_get_user_unit(pid, &user_unit); + cg_pid_get_machine_name(pid, &machine); + cg_pid_get_slice(pid, &slice); + + printf(PID_FMT"\t%s\t%s\t"UID_FMT"\t%s\t%s\t%s\t%s\t%s\n", + pid, + path, + path_shifted, + uid, + session, + unit, + user_unit, + machine, + slice); + } +} + +static void test_escape_one(const char *s, const char *r) { + _cleanup_free_ char *b; + + b = cg_escape(s); + assert_se(b); + assert_se(streq(b, r)); + + assert_se(streq(cg_unescape(b), s)); +} + +static void test_escape(void) { + test_escape_one("foobar", "foobar"); + test_escape_one(".foobar", "_.foobar"); + test_escape_one("foobar.service", "foobar.service"); + test_escape_one("cgroup.service", "_cgroup.service"); + test_escape_one("tasks", "_tasks"); + if (access("/sys/fs/cgroup/cpu", F_OK) == 0) + test_escape_one("cpu.service", "_cpu.service"); + test_escape_one("_foobar", "__foobar"); + test_escape_one("", "_"); + test_escape_one("_", "__"); + test_escape_one(".", "_."); +} + +static void test_controller_is_valid(void) { + assert_se(cg_controller_is_valid("foobar")); + assert_se(cg_controller_is_valid("foo_bar")); + assert_se(cg_controller_is_valid("name=foo")); + assert_se(!cg_controller_is_valid("")); + assert_se(!cg_controller_is_valid("name=")); + assert_se(!cg_controller_is_valid("=")); + assert_se(!cg_controller_is_valid("cpu,cpuacct")); + assert_se(!cg_controller_is_valid("_")); + assert_se(!cg_controller_is_valid("_foobar")); + assert_se(!cg_controller_is_valid("tatü")); +} + +static void test_slice_to_path_one(const char *unit, const char *path, int error) { + _cleanup_free_ char *ret = NULL; + + assert_se(cg_slice_to_path(unit, &ret) == 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("--.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", 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); + 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); +} + +static void test_shift_path_one(const char *raw, const char *root, const char *shifted) { + const char *s = NULL; + + assert_se(cg_shift_path(raw, root, &s) >= 0); + assert_se(streq(s, shifted)); +} + +static void test_shift_path(void) { + + 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"); +} + +static void test_mask_supported(void) { + + CGroupMask m; + CGroupController c; + + assert_se(cg_mask_supported(&m) >= 0); + + for (c = 0; c < _CGROUP_CONTROLLER_MAX; c++) + printf("'%s' is supported: %s\n", cgroup_controller_to_string(c), yes_no(m & CGROUP_CONTROLLER_TO_MASK(c))); +} + +int main(void) { + test_path_decode_unit(); + test_path_get_unit(); + test_path_get_user_unit(); + test_path_get_session(); + test_path_get_owner_uid(); + test_path_get_slice(); + test_path_get_user_slice(); + TEST_REQ_RUNNING_SYSTEMD(test_get_paths()); + test_proc(); + TEST_REQ_RUNNING_SYSTEMD(test_escape()); + test_controller_is_valid(); + test_slice_to_path(); + test_shift_path(); + TEST_REQ_RUNNING_SYSTEMD(test_mask_supported()); + + return 0; +} |