+
+int manager_start_scope(
+ Manager *manager,
+ const char *scope,
+ pid_t pid,
+ const char *slice,
+ const char *description,
+ DBusError *error,
+ char **job) {
+
+ _cleanup_dbus_message_unref_ DBusMessage *m = NULL, *reply = NULL;
+ DBusMessageIter iter, sub, sub2, sub3, sub4;
+ const char *timeout_stop_property = "TimeoutStopUSec";
+ const char *pids_property = "PIDs";
+ uint64_t timeout = 500 * USEC_PER_MSEC;
+ const char *fail = "fail";
+ uint32_t u;
+
+ assert(manager);
+ assert(scope);
+ assert(pid > 1);
+
+ if (!slice)
+ slice = "";
+
+ m = dbus_message_new_method_call(
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "StartTransientUnit");
+ if (!m)
+ return log_oom();
+
+ dbus_message_iter_init_append(m, &iter);
+
+ if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &scope) ||
+ !dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &fail) ||
+ !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(sv)", &sub))
+ return log_oom();
+
+ if (!isempty(slice)) {
+ const char *slice_property = "Slice";
+
+ if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2) ||
+ !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &slice_property) ||
+ !dbus_message_iter_open_container(&sub2, DBUS_TYPE_VARIANT, "s", &sub3) ||
+ !dbus_message_iter_append_basic(&sub3, DBUS_TYPE_STRING, &slice) ||
+ !dbus_message_iter_close_container(&sub2, &sub3) ||
+ !dbus_message_iter_close_container(&sub, &sub2))
+ return log_oom();
+ }
+
+ if (!isempty(description)) {
+ const char *description_property = "Description";
+
+ if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2) ||
+ !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &description_property) ||
+ !dbus_message_iter_open_container(&sub2, DBUS_TYPE_VARIANT, "s", &sub3) ||
+ !dbus_message_iter_append_basic(&sub3, DBUS_TYPE_STRING, &description) ||
+ !dbus_message_iter_close_container(&sub2, &sub3) ||
+ !dbus_message_iter_close_container(&sub, &sub2))
+ return log_oom();
+ }
+
+ /* cgroup empty notification is not available in containers
+ * currently. To make this less problematic, let's shorten the
+ * stop timeout for sessions, so that we don't wait
+ * forever. */
+
+ if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2) ||
+ !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &timeout_stop_property) ||
+ !dbus_message_iter_open_container(&sub2, DBUS_TYPE_VARIANT, "t", &sub3) ||
+ !dbus_message_iter_append_basic(&sub3, DBUS_TYPE_UINT64, &timeout) ||
+ !dbus_message_iter_close_container(&sub2, &sub3) ||
+ !dbus_message_iter_close_container(&sub, &sub2))
+ return log_oom();
+
+ u = pid;
+ if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2) ||
+ !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &pids_property) ||
+ !dbus_message_iter_open_container(&sub2, DBUS_TYPE_VARIANT, "au", &sub3) ||
+ !dbus_message_iter_open_container(&sub3, DBUS_TYPE_ARRAY, "u", &sub4) ||
+ !dbus_message_iter_append_basic(&sub4, DBUS_TYPE_UINT32, &u) ||
+ !dbus_message_iter_close_container(&sub3, &sub4) ||
+ !dbus_message_iter_close_container(&sub2, &sub3) ||
+ !dbus_message_iter_close_container(&sub, &sub2) ||
+ !dbus_message_iter_close_container(&iter, &sub))
+ return log_oom();
+
+ reply = dbus_connection_send_with_reply_and_block(manager->bus, m, -1, error);
+ if (!reply)
+ return -EIO;
+
+ if (job) {
+ const char *j;
+ char *copy;
+
+ if (!dbus_message_get_args(reply, error, DBUS_TYPE_OBJECT_PATH, &j, DBUS_TYPE_INVALID))
+ return -EIO;
+
+ copy = strdup(j);
+ if (!copy)
+ return -ENOMEM;
+
+ *job = copy;
+ }
+
+ return 0;
+}
+
+int manager_start_unit(Manager *manager, const char *unit, DBusError *error, char **job) {
+ _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
+ const char *fail = "fail";
+ int r;
+
+ assert(manager);
+ assert(unit);
+
+ r = bus_method_call_with_reply(
+ manager->bus,
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "StartUnit",
+ &reply,
+ error,
+ DBUS_TYPE_STRING, &unit,
+ DBUS_TYPE_STRING, &fail,
+ DBUS_TYPE_INVALID);
+ if (r < 0) {
+ log_error("Failed to start unit %s: %s", unit, bus_error(error, r));
+ return r;
+ }
+
+ if (job) {
+ const char *j;
+ char *copy;
+
+ if (!dbus_message_get_args(reply, error,
+ DBUS_TYPE_OBJECT_PATH, &j,
+ DBUS_TYPE_INVALID)) {
+ log_error("Failed to parse reply.");
+ return -EIO;
+ }
+
+ copy = strdup(j);
+ if (!copy)
+ return -ENOMEM;
+
+ *job = copy;
+ }
+
+ return 0;
+}
+
+int manager_stop_unit(Manager *manager, const char *unit, DBusError *error, char **job) {
+ _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
+ const char *fail = "fail";
+ int r;
+
+ assert(manager);
+ assert(unit);
+
+ r = bus_method_call_with_reply(
+ manager->bus,
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "StopUnit",
+ &reply,
+ error,
+ DBUS_TYPE_STRING, &unit,
+ DBUS_TYPE_STRING, &fail,
+ DBUS_TYPE_INVALID);
+ if (r < 0) {
+ log_error("Failed to stop unit %s: %s", unit, bus_error(error, r));
+ return r;
+ }
+
+ if (job) {
+ const char *j;
+ char *copy;
+
+ if (!dbus_message_get_args(reply, error,
+ DBUS_TYPE_OBJECT_PATH, &j,
+ DBUS_TYPE_INVALID)) {
+ log_error("Failed to parse reply.");
+ return -EIO;
+ }
+
+ copy = strdup(j);
+ if (!copy)
+ return -ENOMEM;
+
+ *job = copy;
+ }
+
+ return 0;
+}
+
+int manager_kill_unit(Manager *manager, const char *unit, KillWho who, int signo, DBusError *error) {
+ _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
+ const char *w;
+ int r;
+
+ assert(manager);
+ assert(unit);
+
+ w = who == KILL_LEADER ? "process" : "cgroup";
+ assert_cc(sizeof(signo) == sizeof(int32_t));
+
+ r = bus_method_call_with_reply(
+ manager->bus,
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "KillUnit",
+ &reply,
+ error,
+ DBUS_TYPE_STRING, &unit,
+ DBUS_TYPE_STRING, &w,
+ DBUS_TYPE_INT32, &signo,
+ DBUS_TYPE_INVALID);
+ if (r < 0) {
+ log_error("Failed to stop unit %s: %s", unit, bus_error(error, r));
+ return r;
+ }
+
+ return 0;
+}
+
+int manager_unit_is_active(Manager *manager, const char *unit) {
+
+ const char *interface = "org.freedesktop.systemd1.Unit";
+ const char *property = "ActiveState";
+ _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
+ _cleanup_free_ char *path = NULL;
+ DBusMessageIter iter, sub;
+ const char *state;
+ DBusError error;
+ int r;
+
+ assert(manager);
+ assert(unit);
+
+ dbus_error_init(&error);
+
+ path = unit_dbus_path_from_name(unit);
+ if (!path)
+ return -ENOMEM;
+
+ r = bus_method_call_with_reply(
+ manager->bus,
+ "org.freedesktop.systemd1",
+ path,
+ "org.freedesktop.DBus.Properties",
+ "Get",
+ &reply,
+ &error,
+ DBUS_TYPE_STRING, &interface,
+ DBUS_TYPE_STRING, &property,
+ DBUS_TYPE_INVALID);
+
+ if (r < 0) {
+ log_error("Failed to query ActiveState: %s", bus_error(&error, r));
+ dbus_error_free(&error);
+ return r;
+ }
+
+ if (!dbus_message_iter_init(reply, &iter) ||
+ dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
+ log_error("Failed to parse reply.");
+ return -EINVAL;
+ }
+
+ dbus_message_iter_recurse(&iter, &sub);
+ if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
+ log_error("Failed to parse reply.");
+ return -EINVAL;
+ }
+
+ dbus_message_iter_get_basic(&sub, &state);
+
+ return !streq(state, "inactive") && !streq(state, "failed");
+}
~ianmdlvl / elogind.git / commitdiff