diff options
Diffstat (limited to 'src/test/test-cgroup-mask.c')
| -rw-r--r-- | src/test/test-cgroup-mask.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/src/test/test-cgroup-mask.c b/src/test/test-cgroup-mask.c new file mode 100644 index 0000000..bfc8fac --- /dev/null +++ b/src/test/test-cgroup-mask.c @@ -0,0 +1,184 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ + +#include <stdio.h> + +#include "cgroup.h" +#include "cgroup-util.h" +#include "macro.h" +#include "manager.h" +#include "rm-rf.h" +#include "string-util.h" +#include "tests.h" +#include "unit.h" + +#define ASSERT_CGROUP_MASK(got, expected) \ + log_cgroup_mask(got, expected); \ + assert_se(got == expected) + +#define ASSERT_CGROUP_MASK_JOINED(got, expected) ASSERT_CGROUP_MASK(got, CGROUP_MASK_EXTEND_JOINED(expected)) + +static void log_cgroup_mask(CGroupMask got, CGroupMask expected) { + _cleanup_free_ char *e_store = NULL, *g_store = NULL; + + assert_se(cg_mask_to_string(expected, &e_store) >= 0); + log_info("Expected mask: %s", e_store); + assert_se(cg_mask_to_string(got, &g_store) >= 0); + log_info("Got mask: %s", g_store); +} + +TEST_RET(cgroup_mask, .sd_booted = true) { + _cleanup_(rm_rf_physical_and_freep) char *runtime_dir = NULL; + _cleanup_(manager_freep) Manager *m = NULL; + Unit *son, *daughter, *parent, *root, *grandchild, *parent_deep, *nomem_parent, *nomem_leaf; + int r; + CGroupMask cpu_accounting_mask = get_cpu_accounting_mask(); + + r = enter_cgroup_subroot(NULL); + if (r == -ENOMEDIUM) + return log_tests_skipped("cgroupfs not available"); + + /* Prepare the manager. */ + _cleanup_free_ char *unit_dir = NULL; + assert_se(get_testdata_dir("units", &unit_dir) >= 0); + assert_se(set_unit_path(unit_dir) >= 0); + assert_se(runtime_dir = setup_fake_runtime_dir()); + r = manager_new(RUNTIME_SCOPE_USER, MANAGER_TEST_RUN_BASIC, &m); + if (IN_SET(r, -EPERM, -EACCES)) { + log_error_errno(r, "manager_new: %m"); + return log_tests_skipped("cannot create manager"); + } + + assert_se(r >= 0); + + /* Turn off all kinds of default accounting, so that we can + * verify the masks resulting of our configuration and nothing + * else. */ + m->defaults.cpu_accounting = + m->defaults.memory_accounting = + m->defaults.blockio_accounting = + m->defaults.io_accounting = + m->defaults.tasks_accounting = false; + m->defaults.tasks_max = CGROUP_TASKS_MAX_UNSET; + + assert_se(manager_startup(m, NULL, NULL, NULL) >= 0); + + /* Load units and verify hierarchy. */ + assert_se(manager_load_startable_unit_or_warn(m, "parent.slice", NULL, &parent) >= 0); + assert_se(manager_load_startable_unit_or_warn(m, "son.service", NULL, &son) >= 0); + assert_se(manager_load_startable_unit_or_warn(m, "daughter.service", NULL, &daughter) >= 0); + assert_se(manager_load_startable_unit_or_warn(m, "grandchild.service", NULL, &grandchild) >= 0); + assert_se(manager_load_startable_unit_or_warn(m, "parent-deep.slice", NULL, &parent_deep) >= 0); + assert_se(manager_load_startable_unit_or_warn(m, "nomem.slice", NULL, &nomem_parent) >= 0); + assert_se(manager_load_startable_unit_or_warn(m, "nomemleaf.service", NULL, &nomem_leaf) >= 0); + assert_se(UNIT_GET_SLICE(son) == parent); + assert_se(UNIT_GET_SLICE(daughter) == parent); + assert_se(UNIT_GET_SLICE(parent_deep) == parent); + assert_se(UNIT_GET_SLICE(grandchild) == parent_deep); + assert_se(UNIT_GET_SLICE(nomem_leaf) == nomem_parent); + root = UNIT_GET_SLICE(parent); + assert_se(UNIT_GET_SLICE(nomem_parent) == root); + + /* Verify per-unit cgroups settings. */ + ASSERT_CGROUP_MASK_JOINED(unit_get_own_mask(son), CGROUP_MASK_CPU); + ASSERT_CGROUP_MASK_JOINED(unit_get_own_mask(daughter), cpu_accounting_mask); + ASSERT_CGROUP_MASK_JOINED(unit_get_own_mask(grandchild), 0); + ASSERT_CGROUP_MASK_JOINED(unit_get_own_mask(parent_deep), CGROUP_MASK_MEMORY); + ASSERT_CGROUP_MASK_JOINED(unit_get_own_mask(parent), (CGROUP_MASK_IO | CGROUP_MASK_BLKIO)); + ASSERT_CGROUP_MASK_JOINED(unit_get_own_mask(nomem_parent), 0); + ASSERT_CGROUP_MASK_JOINED(unit_get_own_mask(nomem_leaf), (CGROUP_MASK_IO | CGROUP_MASK_BLKIO | CGROUP_MASK_MEMORY)); + ASSERT_CGROUP_MASK_JOINED(unit_get_own_mask(root), 0); + + /* Verify aggregation of member masks */ + ASSERT_CGROUP_MASK_JOINED(unit_get_members_mask(son), 0); + ASSERT_CGROUP_MASK_JOINED(unit_get_members_mask(daughter), 0); + ASSERT_CGROUP_MASK_JOINED(unit_get_members_mask(grandchild), 0); + ASSERT_CGROUP_MASK_JOINED(unit_get_members_mask(parent_deep), 0); + ASSERT_CGROUP_MASK_JOINED(unit_get_members_mask(parent), (CGROUP_MASK_CPU | cpu_accounting_mask | CGROUP_MASK_MEMORY)); + ASSERT_CGROUP_MASK_JOINED(unit_get_members_mask(nomem_parent), (CGROUP_MASK_IO | CGROUP_MASK_BLKIO | CGROUP_MASK_MEMORY)); + ASSERT_CGROUP_MASK_JOINED(unit_get_members_mask(nomem_leaf), 0); + ASSERT_CGROUP_MASK_JOINED(unit_get_members_mask(root), (CGROUP_MASK_CPU | cpu_accounting_mask | CGROUP_MASK_IO | CGROUP_MASK_BLKIO | CGROUP_MASK_MEMORY)); + + /* Verify aggregation of sibling masks. */ + ASSERT_CGROUP_MASK_JOINED(unit_get_siblings_mask(son), (CGROUP_MASK_CPU | cpu_accounting_mask | CGROUP_MASK_MEMORY)); + ASSERT_CGROUP_MASK_JOINED(unit_get_siblings_mask(daughter), (CGROUP_MASK_CPU | cpu_accounting_mask | CGROUP_MASK_MEMORY)); + ASSERT_CGROUP_MASK_JOINED(unit_get_siblings_mask(grandchild), 0); + ASSERT_CGROUP_MASK_JOINED(unit_get_siblings_mask(parent_deep), (CGROUP_MASK_CPU | cpu_accounting_mask | CGROUP_MASK_MEMORY)); + ASSERT_CGROUP_MASK_JOINED(unit_get_siblings_mask(parent), (CGROUP_MASK_CPU | cpu_accounting_mask | CGROUP_MASK_IO | CGROUP_MASK_BLKIO | CGROUP_MASK_MEMORY)); + ASSERT_CGROUP_MASK_JOINED(unit_get_siblings_mask(nomem_parent), (CGROUP_MASK_CPU | CGROUP_MASK_CPUACCT | CGROUP_MASK_IO | CGROUP_MASK_BLKIO | CGROUP_MASK_MEMORY)); + ASSERT_CGROUP_MASK_JOINED(unit_get_siblings_mask(nomem_leaf), (CGROUP_MASK_IO | CGROUP_MASK_BLKIO | CGROUP_MASK_MEMORY)); + ASSERT_CGROUP_MASK_JOINED(unit_get_siblings_mask(root), (CGROUP_MASK_CPU | cpu_accounting_mask | CGROUP_MASK_IO | CGROUP_MASK_BLKIO | CGROUP_MASK_MEMORY)); + + /* Verify aggregation of target masks. */ + ASSERT_CGROUP_MASK(unit_get_target_mask(son), (CGROUP_MASK_EXTEND_JOINED(CGROUP_MASK_CPU | cpu_accounting_mask | CGROUP_MASK_MEMORY) & m->cgroup_supported)); + ASSERT_CGROUP_MASK(unit_get_target_mask(daughter), (CGROUP_MASK_EXTEND_JOINED(CGROUP_MASK_CPU | cpu_accounting_mask | CGROUP_MASK_MEMORY) & m->cgroup_supported)); + ASSERT_CGROUP_MASK(unit_get_target_mask(grandchild), 0); + ASSERT_CGROUP_MASK(unit_get_target_mask(parent_deep), (CGROUP_MASK_EXTEND_JOINED(CGROUP_MASK_CPU | cpu_accounting_mask | CGROUP_MASK_MEMORY) & m->cgroup_supported)); + ASSERT_CGROUP_MASK(unit_get_target_mask(parent), (CGROUP_MASK_EXTEND_JOINED(CGROUP_MASK_CPU | cpu_accounting_mask | CGROUP_MASK_IO | CGROUP_MASK_BLKIO | CGROUP_MASK_MEMORY) & m->cgroup_supported)); + ASSERT_CGROUP_MASK(unit_get_target_mask(nomem_parent), (CGROUP_MASK_EXTEND_JOINED(CGROUP_MASK_CPU | CGROUP_MASK_CPUACCT | CGROUP_MASK_IO | CGROUP_MASK_BLKIO) & m->cgroup_supported)); + ASSERT_CGROUP_MASK(unit_get_target_mask(nomem_leaf), (CGROUP_MASK_EXTEND_JOINED(CGROUP_MASK_IO | CGROUP_MASK_BLKIO) & m->cgroup_supported)); + ASSERT_CGROUP_MASK(unit_get_target_mask(root), (CGROUP_MASK_EXTEND_JOINED(CGROUP_MASK_CPU | cpu_accounting_mask | CGROUP_MASK_IO | CGROUP_MASK_BLKIO | CGROUP_MASK_MEMORY) & m->cgroup_supported)); + + /* Verify aggregation of enable masks. */ + ASSERT_CGROUP_MASK(unit_get_enable_mask(son), 0); + ASSERT_CGROUP_MASK(unit_get_enable_mask(daughter), 0); + ASSERT_CGROUP_MASK(unit_get_enable_mask(grandchild), 0); + ASSERT_CGROUP_MASK(unit_get_enable_mask(parent_deep), 0); + ASSERT_CGROUP_MASK(unit_get_enable_mask(parent), (CGROUP_MASK_EXTEND_JOINED(CGROUP_MASK_CPU | cpu_accounting_mask | CGROUP_MASK_MEMORY) & m->cgroup_supported)); + ASSERT_CGROUP_MASK(unit_get_enable_mask(nomem_parent), (CGROUP_MASK_EXTEND_JOINED(CGROUP_MASK_IO | CGROUP_MASK_BLKIO) & m->cgroup_supported)); + ASSERT_CGROUP_MASK(unit_get_enable_mask(nomem_leaf), 0); + ASSERT_CGROUP_MASK(unit_get_enable_mask(root), (CGROUP_MASK_EXTEND_JOINED(CGROUP_MASK_CPU | cpu_accounting_mask | 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)); +} + +TEST(cg_mask_to_string) { + test_cg_mask_to_string_one(0, NULL); + test_cg_mask_to_string_one(_CGROUP_MASK_ALL, "cpu cpuacct cpuset io blkio memory devices pids bpf-firewall bpf-devices bpf-foreign bpf-socket-bind bpf-restrict-network-interfaces"); + 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_CPUSET, "cpuset"); + 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"); +} + +static void cgroup_device_permissions_test_normalize(const char *a, const char *b) { + assert_se(streq_ptr(cgroup_device_permissions_to_string(cgroup_device_permissions_from_string(a)), b)); +} + +TEST(cgroup_device_permissions) { + for (CGroupDevicePermissions p = 0; p < _CGROUP_DEVICE_PERMISSIONS_MAX; p++) { + const char *s; + + assert_se(s = cgroup_device_permissions_to_string(p)); + assert_se(cgroup_device_permissions_from_string(s) == p); + } + + cgroup_device_permissions_test_normalize("", ""); + cgroup_device_permissions_test_normalize("rw", "rw"); + cgroup_device_permissions_test_normalize("wr", "rw"); + cgroup_device_permissions_test_normalize("wwrr", "rw"); + cgroup_device_permissions_test_normalize("mmmmmmmmmmmmmm", "m"); + cgroup_device_permissions_test_normalize("mmmmrrrrmmmwwmwmwmwmwmrmrmr", "rwm"); + + assert_se(cgroup_device_permissions_from_string(NULL) == -EINVAL); + assert_se(cgroup_device_permissions_from_string("rwq") == -EINVAL); + assert_se(cgroup_device_permissions_from_string("RW") == -EINVAL); + assert_se(cgroup_device_permissions_from_string("") == 0); +} + +DEFINE_TEST_MAIN(LOG_DEBUG); |