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/* SPDX-License-Identifier: LGPL-2.1+ */
/***
This file is part of systemd.
Copyright 2013 David Strauss
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 <stdio.h>
#include "macro.h"
#include "manager.h"
#include "rm-rf.h"
#include "string-util.h"
#include "test-helper.h"
#include "tests.h"
#include "unit.h"
static int test_cgroup_mask(void) {
_cleanup_(rm_rf_physical_and_freep) char *runtime_dir = NULL;
_cleanup_(manager_freep) Manager *m = NULL;
Unit *son, *daughter, *parent, *root, *grandchild, *parent_deep;
FILE *serial = NULL;
FDSet *fdset = NULL;
int r;
r = enter_cgroup_subroot();
if (r == -ENOMEDIUM) {
puts("Skipping test: cgroupfs not available");
return EXIT_TEST_SKIP;
}
/* Prepare the manager. */
assert_se(set_unit_path(get_testdata_dir("")) >= 0);
assert_se(runtime_dir = setup_fake_runtime_dir());
r = manager_new(UNIT_FILE_USER, MANAGER_TEST_RUN_BASIC, &m);
if (IN_SET(r, -EPERM, -EACCES)) {
puts("manager_new: Permission denied. Skipping test.");
return EXIT_TEST_SKIP;
}
assert_se(r >= 0);
/* Turn off all kinds of default accouning, so that we can
* verify the masks resulting of our configuration and nothing
* else. */
m->default_cpu_accounting =
m->default_memory_accounting =
m->default_blockio_accounting =
m->default_io_accounting =
m->default_tasks_accounting = false;
m->default_tasks_max = (uint64_t) -1;
assert_se(r >= 0);
assert_se(manager_startup(m, serial, fdset) >= 0);
/* Load units and verify hierarchy. */
assert_se(manager_load_unit(m, "parent.slice", NULL, NULL, &parent) >= 0);
assert_se(manager_load_unit(m, "son.service", NULL, NULL, &son) >= 0);
assert_se(manager_load_unit(m, "daughter.service", NULL, NULL, &daughter) >= 0);
assert_se(manager_load_unit(m, "grandchild.service", NULL, NULL, &grandchild) >= 0);
assert_se(manager_load_unit(m, "parent-deep.slice", NULL, NULL, &parent_deep) >= 0);
assert_se(parent->load_state == UNIT_LOADED);
assert_se(son->load_state == UNIT_LOADED);
assert_se(daughter->load_state == UNIT_LOADED);
assert_se(grandchild->load_state == UNIT_LOADED);
assert_se(parent_deep->load_state == UNIT_LOADED);
assert_se(UNIT_DEREF(son->slice) == parent);
assert_se(UNIT_DEREF(daughter->slice) == parent);
assert_se(UNIT_DEREF(parent_deep->slice) == parent);
assert_se(UNIT_DEREF(grandchild->slice) == parent_deep);
root = UNIT_DEREF(parent->slice);
/* Verify per-unit cgroups settings. */
assert_se(unit_get_own_mask(son) == (CGROUP_MASK_CPU | CGROUP_MASK_CPUACCT));
assert_se(unit_get_own_mask(daughter) == 0);
assert_se(unit_get_own_mask(grandchild) == 0);
assert_se(unit_get_own_mask(parent_deep) == CGROUP_MASK_MEMORY);
assert_se(unit_get_own_mask(parent) == (CGROUP_MASK_IO | CGROUP_MASK_BLKIO));
assert_se(unit_get_own_mask(root) == 0);
/* Verify aggregation of member masks */
assert_se(unit_get_members_mask(son) == 0);
assert_se(unit_get_members_mask(daughter) == 0);
assert_se(unit_get_members_mask(grandchild) == 0);
assert_se(unit_get_members_mask(parent_deep) == 0);
assert_se(unit_get_members_mask(parent) == (CGROUP_MASK_CPU | CGROUP_MASK_CPUACCT | CGROUP_MASK_MEMORY));
assert_se(unit_get_members_mask(root) == (CGROUP_MASK_CPU | CGROUP_MASK_CPUACCT | CGROUP_MASK_IO | CGROUP_MASK_BLKIO | CGROUP_MASK_MEMORY));
/* Verify aggregation of sibling masks. */
assert_se(unit_get_siblings_mask(son) == (CGROUP_MASK_CPU | CGROUP_MASK_CPUACCT | CGROUP_MASK_MEMORY));
assert_se(unit_get_siblings_mask(daughter) == (CGROUP_MASK_CPU | CGROUP_MASK_CPUACCT | CGROUP_MASK_MEMORY));
assert_se(unit_get_siblings_mask(grandchild) == 0);
assert_se(unit_get_siblings_mask(parent_deep) == (CGROUP_MASK_CPU | CGROUP_MASK_CPUACCT | CGROUP_MASK_MEMORY));
assert_se(unit_get_siblings_mask(parent) == (CGROUP_MASK_CPU | CGROUP_MASK_CPUACCT | CGROUP_MASK_IO | CGROUP_MASK_BLKIO | CGROUP_MASK_MEMORY));
assert_se(unit_get_siblings_mask(root) == (CGROUP_MASK_CPU | CGROUP_MASK_CPUACCT | CGROUP_MASK_IO | CGROUP_MASK_BLKIO | CGROUP_MASK_MEMORY));
/* Verify aggregation of target masks. */
assert_se(unit_get_target_mask(son) == ((CGROUP_MASK_CPU | CGROUP_MASK_CPUACCT | CGROUP_MASK_MEMORY) & m->cgroup_supported));
assert_se(unit_get_target_mask(daughter) == ((CGROUP_MASK_CPU | CGROUP_MASK_CPUACCT | CGROUP_MASK_MEMORY) & m->cgroup_supported));
assert_se(unit_get_target_mask(grandchild) == 0);
assert_se(unit_get_target_mask(parent_deep) == ((CGROUP_MASK_CPU | CGROUP_MASK_CPUACCT | CGROUP_MASK_MEMORY) & m->cgroup_supported));
assert_se(unit_get_target_mask(parent) == ((CGROUP_MASK_CPU | CGROUP_MASK_CPUACCT | CGROUP_MASK_IO | CGROUP_MASK_BLKIO | CGROUP_MASK_MEMORY) & m->cgroup_supported));
assert_se(unit_get_target_mask(root) == ((CGROUP_MASK_CPU | CGROUP_MASK_CPUACCT | CGROUP_MASK_IO | CGROUP_MASK_BLKIO | CGROUP_MASK_MEMORY) & m->cgroup_supported));
return 0;
}
static void test_cg_mask_to_string_one(CGroupMask mask, const char *t) {
_cleanup_free_ char *b = NULL;
assert_se(cg_mask_to_string(mask, &b) >= 0);
assert_se(streq_ptr(b, t));
}
static void test_cg_mask_to_string(void) {
test_cg_mask_to_string_one(0, NULL);
test_cg_mask_to_string_one(_CGROUP_MASK_ALL, "cpu cpuacct io blkio memory devices pids");
test_cg_mask_to_string_one(CGROUP_MASK_CPU, "cpu");
test_cg_mask_to_string_one(CGROUP_MASK_CPUACCT, "cpuacct");
test_cg_mask_to_string_one(CGROUP_MASK_IO, "io");
test_cg_mask_to_string_one(CGROUP_MASK_BLKIO, "blkio");
test_cg_mask_to_string_one(CGROUP_MASK_MEMORY, "memory");
test_cg_mask_to_string_one(CGROUP_MASK_DEVICES, "devices");
test_cg_mask_to_string_one(CGROUP_MASK_PIDS, "pids");
test_cg_mask_to_string_one(CGROUP_MASK_CPU|CGROUP_MASK_CPUACCT, "cpu cpuacct");
test_cg_mask_to_string_one(CGROUP_MASK_CPU|CGROUP_MASK_PIDS, "cpu pids");
test_cg_mask_to_string_one(CGROUP_MASK_CPUACCT|CGROUP_MASK_PIDS, "cpuacct pids");
test_cg_mask_to_string_one(CGROUP_MASK_DEVICES|CGROUP_MASK_PIDS, "devices pids");
test_cg_mask_to_string_one(CGROUP_MASK_IO|CGROUP_MASK_BLKIO, "io blkio");
}
int main(int argc, char* argv[]) {
int rc = 0;
log_parse_environment();
log_open();
TEST_REQ_RUNNING_SYSTEMD(rc = test_cgroup_mask());
test_cg_mask_to_string();
return rc;
}
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