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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <errno.h>
#include <stdio.h>
#include "bus-util.h"
#include "manager.h"
#include "manager-dump.h"
#include "rm-rf.h"
#include "service.h"
#include "slice.h"
#include "special.h"
#include "strv.h"
#include "tests.h"
#include "unit-serialize.h"
static void verify_dependency_atoms(void) {
UnitDependencyAtom combined = 0, multi_use_atoms = 0;
/* Let's guarantee that our dependency type/atom translation tables are fully correct */
for (UnitDependency d = 0; d < _UNIT_DEPENDENCY_MAX; d++) {
UnitDependencyAtom a;
UnitDependency reverse;
bool has_superset = false;
assert_se((a = unit_dependency_to_atom(d)) >= 0);
for (UnitDependency t = 0; t < _UNIT_DEPENDENCY_MAX; t++) {
UnitDependencyAtom b;
if (t == d)
continue;
assert_se((b = unit_dependency_to_atom(t)) >= 0);
if ((a & b) == a) {
has_superset = true;
break;
}
}
reverse = unit_dependency_from_unique_atom(a);
assert_se(reverse == _UNIT_DEPENDENCY_INVALID || reverse >= 0);
assert_se((reverse < 0) == has_superset); /* If one dependency type is a superset of another,
* then the reverse mapping is not unique, verify
* that. */
log_info("Verified dependency type: %s", unit_dependency_to_string(d));
multi_use_atoms |= combined & a;
combined |= a;
}
/* Make sure all atoms are used, i.e. there's at least one dependency type that references it. */
assert_se(combined == _UNIT_DEPENDENCY_ATOM_MAX);
for (UnitDependencyAtom a = 1; a <= _UNIT_DEPENDENCY_ATOM_MAX; a <<= 1) {
if (multi_use_atoms & a) {
/* If an atom is used by multiple dep types, then mapping the atom to a dependency is
* not unique and *must* fail */
assert_se(unit_dependency_from_unique_atom(a) == _UNIT_DEPENDENCY_INVALID);
continue;
}
/* If only a single dep type uses specific atom, let's guarantee our mapping table is
complete, and thus the atom can be mapped to the single dep type that is used. */
assert_se(unit_dependency_from_unique_atom(a) >= 0);
}
}
int main(int argc, char *argv[]) {
_cleanup_(rm_rf_physical_and_freep) char *runtime_dir = NULL;
_cleanup_(sd_bus_error_free) sd_bus_error err = SD_BUS_ERROR_NULL;
_cleanup_(manager_freep) Manager *m = NULL;
Unit *a = NULL, *b = NULL, *c = NULL, *d = NULL, *e = NULL, *g = NULL,
*h = NULL, *i = NULL, *a_conj = NULL, *unit_with_multiple_dashes = NULL, *stub = NULL,
*tomato = NULL, *sauce = NULL, *fruit = NULL, *zupa = NULL;
Job *j;
int r;
test_setup_logging(LOG_DEBUG);
r = enter_cgroup_subroot(NULL);
if (r == -ENOMEDIUM)
return log_tests_skipped("cgroupfs not available");
/* prepare the test */
_cleanup_free_ char *unit_dir = NULL;
ASSERT_OK(get_testdata_dir("units", &unit_dir));
ASSERT_OK(setenv_unit_path(unit_dir));
assert_se(runtime_dir = setup_fake_runtime_dir());
r = manager_new(RUNTIME_SCOPE_USER, MANAGER_TEST_RUN_BASIC, &m);
if (manager_errno_skip_test(r))
return log_tests_skipped_errno(r, "manager_new");
assert_se(r >= 0);
assert_se(manager_startup(m, NULL, NULL, NULL) >= 0);
printf("Load1:\n");
assert_se(manager_load_startable_unit_or_warn(m, "a.service", NULL, &a) >= 0);
assert_se(manager_load_startable_unit_or_warn(m, "b.service", NULL, &b) >= 0);
assert_se(manager_load_startable_unit_or_warn(m, "c.service", NULL, &c) >= 0);
manager_dump_units(m, stdout, /* patterns= */ NULL, "\t");
printf("Test1: (Trivial)\n");
r = manager_add_job(m, JOB_START, c, JOB_REPLACE, &err, &j);
if (sd_bus_error_is_set(&err))
log_error("error: %s: %s", err.name, err.message);
assert_se(r == 0);
manager_dump_jobs(m, stdout, /* patterns= */ NULL, "\t");
printf("Load2:\n");
manager_clear_jobs(m);
assert_se(manager_load_startable_unit_or_warn(m, "d.service", NULL, &d) >= 0);
assert_se(manager_load_startable_unit_or_warn(m, "e.service", NULL, &e) >= 0);
manager_dump_units(m, stdout, /* patterns= */ NULL, "\t");
printf("Test2: (Cyclic Order, Unfixable)\n");
assert_se(manager_add_job(m, JOB_START, d, JOB_REPLACE, NULL, &j) == -EDEADLK);
manager_dump_jobs(m, stdout, /* patterns= */ NULL, "\t");
printf("Test3: (Cyclic Order, Fixable, Garbage Collector)\n");
assert_se(manager_add_job(m, JOB_START, e, JOB_REPLACE, NULL, &j) == 0);
manager_dump_jobs(m, stdout, /* patterns= */ NULL, "\t");
printf("Test4: (Identical transaction)\n");
assert_se(manager_add_job(m, JOB_START, e, JOB_FAIL, NULL, &j) == 0);
manager_dump_jobs(m, stdout, /* patterns= */ NULL, "\t");
printf("Load3:\n");
assert_se(manager_load_startable_unit_or_warn(m, "g.service", NULL, &g) >= 0);
manager_dump_units(m, stdout, /* patterns= */ NULL, "\t");
printf("Test5: (Colliding transaction, fail)\n");
assert_se(manager_add_job(m, JOB_START, g, JOB_FAIL, NULL, &j) == -EDEADLK);
printf("Test6: (Colliding transaction, replace)\n");
assert_se(manager_add_job(m, JOB_START, g, JOB_REPLACE, NULL, &j) == 0);
manager_dump_jobs(m, stdout, /* patterns= */ NULL, "\t");
printf("Test7: (Unmergeable job type, fail)\n");
assert_se(manager_add_job(m, JOB_STOP, g, JOB_FAIL, NULL, &j) == -EDEADLK);
printf("Test8: (Mergeable job type, fail)\n");
assert_se(manager_add_job(m, JOB_RESTART, g, JOB_FAIL, NULL, &j) == 0);
manager_dump_jobs(m, stdout, /* patterns= */ NULL, "\t");
printf("Test9: (Unmergeable job type, replace)\n");
assert_se(manager_add_job(m, JOB_STOP, g, JOB_REPLACE, NULL, &j) == 0);
manager_dump_jobs(m, stdout, /* patterns= */ NULL, "\t");
printf("Load4:\n");
assert_se(manager_load_startable_unit_or_warn(m, "h.service", NULL, &h) >= 0);
manager_dump_units(m, stdout, /* patterns= */ NULL, "\t");
printf("Test10: (Unmergeable job type of auxiliary job, fail)\n");
assert_se(manager_add_job(m, JOB_START, h, JOB_FAIL, NULL, &j) == 0);
manager_dump_jobs(m, stdout, /* patterns= */ NULL, "\t");
printf("Load5:\n");
manager_clear_jobs(m);
assert_se(manager_load_startable_unit_or_warn(m, "i.service", NULL, &i) >= 0);
SERVICE(a)->state = SERVICE_RUNNING;
SERVICE(d)->state = SERVICE_RUNNING;
manager_dump_units(m, stdout, /* patterns= */ NULL, "\t");
printf("Test11: (Start/stop job ordering, execution cycle)\n");
assert_se(manager_add_job(m, JOB_START, i, JOB_FAIL, NULL, &j) == 0);
assert_se(unit_has_job_type(a, JOB_STOP));
assert_se(unit_has_job_type(d, JOB_STOP));
assert_se(unit_has_job_type(b, JOB_START));
manager_dump_jobs(m, stdout, /* patterns= */ NULL, "\t");
printf("Load6:\n");
manager_clear_jobs(m);
assert_se(manager_load_startable_unit_or_warn(m, "a-conj.service", NULL, &a_conj) >= 0);
SERVICE(a)->state = SERVICE_DEAD;
manager_dump_units(m, stdout, /* patterns= */ NULL, "\t");
printf("Test12: (Trivial cycle, Unfixable)\n");
assert_se(manager_add_job(m, JOB_START, a_conj, JOB_REPLACE, NULL, &j) == -EDEADLK);
manager_dump_jobs(m, stdout, /* patterns= */ NULL, "\t");
assert_se(!hashmap_get(unit_get_dependencies(a, UNIT_PROPAGATES_RELOAD_TO), b));
assert_se(!hashmap_get(unit_get_dependencies(b, UNIT_RELOAD_PROPAGATED_FROM), a));
assert_se(!hashmap_get(unit_get_dependencies(a, UNIT_PROPAGATES_RELOAD_TO), c));
assert_se(!hashmap_get(unit_get_dependencies(c, UNIT_RELOAD_PROPAGATED_FROM), a));
assert_se(unit_add_dependency(a, UNIT_PROPAGATES_RELOAD_TO, b, true, UNIT_DEPENDENCY_UDEV) >= 0);
assert_se(unit_add_dependency(a, UNIT_PROPAGATES_RELOAD_TO, c, true, UNIT_DEPENDENCY_PROC_SWAP) >= 0);
assert_se( hashmap_get(unit_get_dependencies(a, UNIT_PROPAGATES_RELOAD_TO), b));
assert_se( hashmap_get(unit_get_dependencies(b, UNIT_RELOAD_PROPAGATED_FROM), a));
assert_se( hashmap_get(unit_get_dependencies(a, UNIT_PROPAGATES_RELOAD_TO), c));
assert_se( hashmap_get(unit_get_dependencies(c, UNIT_RELOAD_PROPAGATED_FROM), a));
unit_remove_dependencies(a, UNIT_DEPENDENCY_UDEV);
assert_se(!hashmap_get(unit_get_dependencies(a, UNIT_PROPAGATES_RELOAD_TO), b));
assert_se(!hashmap_get(unit_get_dependencies(b, UNIT_RELOAD_PROPAGATED_FROM), a));
assert_se( hashmap_get(unit_get_dependencies(a, UNIT_PROPAGATES_RELOAD_TO), c));
assert_se( hashmap_get(unit_get_dependencies(c, UNIT_RELOAD_PROPAGATED_FROM), a));
unit_remove_dependencies(a, UNIT_DEPENDENCY_PROC_SWAP);
assert_se(!hashmap_get(unit_get_dependencies(a, UNIT_PROPAGATES_RELOAD_TO), b));
assert_se(!hashmap_get(unit_get_dependencies(b, UNIT_RELOAD_PROPAGATED_FROM), a));
assert_se(!hashmap_get(unit_get_dependencies(a, UNIT_PROPAGATES_RELOAD_TO), c));
assert_se(!hashmap_get(unit_get_dependencies(c, UNIT_RELOAD_PROPAGATED_FROM), a));
assert_se(manager_load_unit(m, "unit-with-multiple-dashes.service", NULL, NULL, &unit_with_multiple_dashes) >= 0);
assert_se(strv_equal(unit_with_multiple_dashes->documentation, STRV_MAKE("man:test", "man:override2", "man:override3")));
ASSERT_STREQ(unit_with_multiple_dashes->description, "override4");
/* Now merge a synthetic unit into the existing one */
assert_se(unit_new_for_name(m, sizeof(Service), "merged.service", &stub) >= 0);
assert_se(unit_add_dependency_by_name(stub, UNIT_AFTER, SPECIAL_BASIC_TARGET, true, UNIT_DEPENDENCY_FILE) >= 0);
assert_se(unit_add_dependency_by_name(stub, UNIT_AFTER, "quux.target", true, UNIT_DEPENDENCY_FILE) >= 0);
assert_se(unit_add_dependency_by_name(stub, UNIT_AFTER, SPECIAL_ROOT_SLICE, true, UNIT_DEPENDENCY_FILE) >= 0);
assert_se(unit_add_dependency_by_name(stub, UNIT_REQUIRES, "non-existing.mount", true, UNIT_DEPENDENCY_FILE) >= 0);
assert_se(unit_add_dependency_by_name(stub, UNIT_ON_FAILURE, "non-existing-on-failure.target", true, UNIT_DEPENDENCY_FILE) >= 0);
assert_se(unit_add_dependency_by_name(stub, UNIT_ON_SUCCESS, "non-existing-on-success.target", true, UNIT_DEPENDENCY_FILE) >= 0);
log_info("/* Merging a+stub, dumps before */");
unit_dump(a, stderr, NULL);
unit_dump(stub, stderr, NULL);
assert_se(unit_merge(a, stub) >= 0);
log_info("/* Dump of merged a+stub */");
unit_dump(a, stderr, NULL);
assert_se( unit_has_dependency(a, UNIT_ATOM_AFTER, manager_get_unit(m, SPECIAL_BASIC_TARGET)));
assert_se( unit_has_dependency(a, UNIT_ATOM_AFTER, manager_get_unit(m, "quux.target")));
assert_se( unit_has_dependency(a, UNIT_ATOM_AFTER, manager_get_unit(m, SPECIAL_ROOT_SLICE)));
assert_se( unit_has_dependency(a, UNIT_ATOM_PULL_IN_START, manager_get_unit(m, "non-existing.mount")));
assert_se( unit_has_dependency(a, UNIT_ATOM_RETROACTIVE_START_REPLACE, manager_get_unit(m, "non-existing.mount")));
assert_se( unit_has_dependency(a, UNIT_ATOM_ON_FAILURE, manager_get_unit(m, "non-existing-on-failure.target")));
assert_se( unit_has_dependency(manager_get_unit(m, "non-existing-on-failure.target"), UNIT_ATOM_ON_FAILURE_OF, a));
assert_se( unit_has_dependency(a, UNIT_ATOM_ON_SUCCESS, manager_get_unit(m, "non-existing-on-success.target")));
assert_se( unit_has_dependency(manager_get_unit(m, "non-existing-on-success.target"), UNIT_ATOM_ON_SUCCESS_OF, a));
assert_se(!unit_has_dependency(a, UNIT_ATOM_ON_FAILURE, manager_get_unit(m, SPECIAL_BASIC_TARGET)));
assert_se(!unit_has_dependency(a, UNIT_ATOM_ON_SUCCESS, manager_get_unit(m, SPECIAL_BASIC_TARGET)));
assert_se(!unit_has_dependency(a, UNIT_ATOM_ON_FAILURE_OF, manager_get_unit(m, SPECIAL_BASIC_TARGET)));
assert_se(!unit_has_dependency(a, UNIT_ATOM_ON_SUCCESS_OF, manager_get_unit(m, SPECIAL_BASIC_TARGET)));
assert_se(!unit_has_dependency(a, UNIT_ATOM_PROPAGATES_RELOAD_TO, manager_get_unit(m, "non-existing-on-failure.target")));
assert_se(unit_has_name(a, "a.service"));
assert_se(unit_has_name(a, "merged.service"));
unsigned mm = 1;
Unit *other;
UNIT_FOREACH_DEPENDENCY(other, a, UNIT_ATOM_AFTER) {
mm *= unit_has_name(other, SPECIAL_BASIC_TARGET) ? 3 : 1;
mm *= unit_has_name(other, "quux.target") ? 5 : 1;
mm *= unit_has_name(other, SPECIAL_ROOT_SLICE) ? 7 : 1;
}
UNIT_FOREACH_DEPENDENCY(other, a, UNIT_ATOM_ON_FAILURE)
mm *= unit_has_name(other, "non-existing-on-failure.target") ? 11 : 1;
UNIT_FOREACH_DEPENDENCY(other, a, UNIT_ATOM_PULL_IN_START)
mm *= unit_has_name(other, "non-existing.mount") ? 13 : 1;
assert_se(mm == 3U*5U*7U*11U*13U);
verify_dependency_atoms();
/* Test adding multiple Slice= dependencies; only the last should remain */
assert_se(unit_new_for_name(m, sizeof(Service), "tomato.service", &tomato) >= 0);
assert_se(unit_new_for_name(m, sizeof(Slice), "sauce.slice", &sauce) >= 0);
assert_se(unit_new_for_name(m, sizeof(Slice), "fruit.slice", &fruit) >= 0);
assert_se(unit_new_for_name(m, sizeof(Slice), "zupa.slice", &zupa) >= 0);
unit_set_slice(tomato, sauce);
unit_set_slice(tomato, fruit);
unit_set_slice(tomato, zupa);
assert_se(UNIT_GET_SLICE(tomato) == zupa);
assert_se(!unit_has_dependency(tomato, UNIT_ATOM_IN_SLICE, sauce));
assert_se(!unit_has_dependency(tomato, UNIT_ATOM_IN_SLICE, fruit));
assert_se( unit_has_dependency(tomato, UNIT_ATOM_IN_SLICE, zupa));
assert_se(!unit_has_dependency(tomato, UNIT_ATOM_REFERENCES, sauce));
assert_se(!unit_has_dependency(tomato, UNIT_ATOM_REFERENCES, fruit));
assert_se( unit_has_dependency(tomato, UNIT_ATOM_REFERENCES, zupa));
assert_se(!unit_has_dependency(sauce, UNIT_ATOM_SLICE_OF, tomato));
assert_se(!unit_has_dependency(fruit, UNIT_ATOM_SLICE_OF, tomato));
assert_se( unit_has_dependency(zupa, UNIT_ATOM_SLICE_OF, tomato));
assert_se(!unit_has_dependency(sauce, UNIT_ATOM_REFERENCED_BY, tomato));
assert_se(!unit_has_dependency(fruit, UNIT_ATOM_REFERENCED_BY, tomato));
assert_se( unit_has_dependency(zupa, UNIT_ATOM_REFERENCED_BY, tomato));
return 0;
}
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