static void test_basic_mask_and_enable(const char *root) {
const char *p;
UnitFileState state;
UnitFileChange *changes = NULL;
unsigned n_changes = 0;
log_set_max_level(LOG_DEBUG);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "a.service", NULL) == -ENOENT);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "b.service", NULL) == -ENOENT);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "c.service", NULL) == -ENOENT);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "d.service", NULL) == -ENOENT);
p = strjoina(root, "/usr/lib/systemd/system/a.service");
assert_se(write_string_file(p,
"[Install]\n"
"WantedBy=multi-user.target\n", WRITE_STRING_FILE_CREATE) >= 0);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "a.service", NULL) >= 0);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "a.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
p = strjoina(root, "/usr/lib/systemd/system/b.service");
assert_se(symlink("a.service", p) >= 0);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "b.service", NULL) >= 0);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "b.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
p = strjoina(root, "/usr/lib/systemd/system/c.service");
assert_se(symlink("/usr/lib/systemd/system/a.service", p) >= 0);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "c.service", NULL) >= 0);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "c.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
p = strjoina(root, "/usr/lib/systemd/system/d.service");
assert_se(symlink("c.service", p) >= 0);
/* This one is interesting, as d follows a relative, then an absolute symlink */
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "d.service", NULL) >= 0);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "d.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_mask(UNIT_FILE_SYSTEM, 0, root, STRV_MAKE("a.service"), &changes, &n_changes) >= 0);
assert_se(n_changes == 1);
assert_se(changes[0].type == UNIT_FILE_SYMLINK);
assert_se(streq(changes[0].source, "/dev/null"));
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/a.service");
assert_se(streq(changes[0].path, p));
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "a.service", &state) >= 0 && state == UNIT_FILE_MASKED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "b.service", &state) >= 0 && state == UNIT_FILE_MASKED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "c.service", &state) >= 0 && state == UNIT_FILE_MASKED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "d.service", &state) >= 0 && state == UNIT_FILE_MASKED);
/* Enabling a masked unit should fail! */
assert_se(unit_file_enable(UNIT_FILE_SYSTEM, 0, root, STRV_MAKE("a.service"), &changes, &n_changes) == -ERFKILL);
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_unmask(UNIT_FILE_SYSTEM, 0, root, STRV_MAKE("a.service"), &changes, &n_changes) >= 0);
assert_se(n_changes == 1);
assert_se(changes[0].type == UNIT_FILE_UNLINK);
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/a.service");
assert_se(streq(changes[0].path, p));
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_enable(UNIT_FILE_SYSTEM, 0, root, STRV_MAKE("a.service"), &changes, &n_changes) == 1);
assert_se(n_changes == 1);
assert_se(changes[0].type == UNIT_FILE_SYMLINK);
assert_se(streq(changes[0].source, "/usr/lib/systemd/system/a.service"));
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/multi-user.target.wants/a.service");
assert_se(streq(changes[0].path, p));
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "a.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "b.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "c.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "d.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
/* Enabling it again should succeed but be a NOP */
assert_se(unit_file_enable(UNIT_FILE_SYSTEM, 0, root, STRV_MAKE("a.service"), &changes, &n_changes) >= 0);
assert_se(n_changes == 0);
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_disable(UNIT_FILE_SYSTEM, 0, root, STRV_MAKE("a.service"), &changes, &n_changes) >= 0);
assert_se(n_changes == 1);
assert_se(changes[0].type == UNIT_FILE_UNLINK);
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/multi-user.target.wants/a.service");
assert_se(streq(changes[0].path, p));
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "a.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "b.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "c.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "d.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
/* Disabling a disabled unit must suceed but be a NOP */
assert_se(unit_file_disable(UNIT_FILE_SYSTEM, 0, root, STRV_MAKE("a.service"), &changes, &n_changes) >= 0);
assert_se(n_changes == 0);
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
/* Let's enable this indirectly via a symlink */
assert_se(unit_file_enable(UNIT_FILE_SYSTEM, 0, root, STRV_MAKE("d.service"), &changes, &n_changes) >= 0);
assert_se(n_changes == 1);
assert_se(changes[0].type == UNIT_FILE_SYMLINK);
assert_se(streq(changes[0].source, "/usr/lib/systemd/system/a.service"));
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/multi-user.target.wants/a.service");
assert_se(streq(changes[0].path, p));
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "a.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "b.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "c.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "d.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
/* Let's try to reenable */
assert_se(unit_file_reenable(UNIT_FILE_SYSTEM, 0, root, STRV_MAKE("b.service"), &changes, &n_changes) >= 0);
assert_se(n_changes == 2);
assert_se(changes[0].type == UNIT_FILE_UNLINK);
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/multi-user.target.wants/a.service");
assert_se(streq(changes[0].path, p));
assert_se(changes[1].type == UNIT_FILE_SYMLINK);
assert_se(streq(changes[1].source, "/usr/lib/systemd/system/a.service"));
assert_se(streq(changes[1].path, p));
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "a.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "b.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "c.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "d.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
}
log_error("mask2");
r = unit_file_mask(UNIT_FILE_SYSTEM, false, NULL, (char**) files, false, &changes, &n_changes);
assert_se(r >= 0);
dump_changes(changes, n_changes);
unit_file_changes_free(changes, n_changes);
r = unit_file_get_state(UNIT_FILE_SYSTEM, NULL, files[0], &state);
assert_se(r >= 0);
assert_se(state == UNIT_FILE_MASKED);
log_error("unmask");
changes = NULL;
n_changes = 0;
r = unit_file_unmask(UNIT_FILE_SYSTEM, false, NULL, (char**) files, &changes, &n_changes);
assert_se(r >= 0);
log_error("unmask2");
r = unit_file_unmask(UNIT_FILE_SYSTEM, false, NULL, (char**) files, &changes, &n_changes);
assert_se(r >= 0);
dump_changes(changes, n_changes);
unit_file_changes_free(changes, n_changes);
r = unit_file_get_state(UNIT_FILE_SYSTEM, NULL, files[0], &state);
assert_se(r >= 0);
assert_se(state == UNIT_FILE_DISABLED);
log_error("mask");
changes = NULL;
n_changes = 0;
