reply = dbus_message_new_method_return(message);
if (!reply)
goto oom;
+ } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Unit", "SetProperties")) {
+ DBusMessageIter iter;
+ dbus_bool_t runtime;
+
+ if (!dbus_message_iter_init(message, &iter))
+ goto oom;
+
+ if (bus_iter_get_basic_and_next(&iter, DBUS_TYPE_BOOLEAN, &runtime, true) < 0)
+ return bus_send_error_reply(connection, message, NULL, -EINVAL);
+
+ SELINUX_UNIT_ACCESS_CHECK(u, connection, message, "start");
+
+ r = bus_unit_set_properties(u, &iter, runtime ? UNIT_RUNTIME : UNIT_PERSISTENT, true, &error);
+ if (r < 0)
+ return bus_send_error_reply(connection, message, &error, r);
+
+ reply = dbus_message_new_method_return(message);
+ if (!reply)
+ goto oom;
} else if (UNIT_VTABLE(u)->bus_message_handler)
return UNIT_VTABLE(u)->bus_message_handler(u, connection, message);
};
void bus_unit_send_change_signal(Unit *u) {
- _cleanup_free_ char *p = NULL;
_cleanup_dbus_message_unref_ DBusMessage *m = NULL;
+ _cleanup_free_ char *p = NULL;
+ int r;
assert(u);
}
p = unit_dbus_path(u);
- if (!p)
- goto oom;
+ if (!p) {
+ log_oom();
+ return;
+ }
if (u->sent_dbus_new_signal) {
/* Send a properties changed signal. First for the
m = bus_properties_changed_new(p,
UNIT_VTABLE(u)->bus_interface,
UNIT_VTABLE(u)->bus_invalidating_properties);
- if (!m)
- goto oom;
+ if (!m) {
+ log_oom();
+ return;
+ }
- if (bus_broadcast(u->manager, m) < 0)
- goto oom;
+ r = bus_broadcast(u->manager, m);
+ if (r < 0) {
+ log_error("Failed to broadcast change message: %s", strerror(-r));
+ return;
+ }
dbus_message_unref(m);
}
m = bus_properties_changed_new(p, "org.freedesktop.systemd1.Unit",
INVALIDATING_PROPERTIES);
- if (!m)
- goto oom;
+ if (!m) {
+ log_oom();
+ return;
+ }
} else {
/* Send a new signal */
m = dbus_message_new_signal("/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"UnitNew");
- if (!m)
- goto oom;
+ if (!m) {
+ log_oom();
+ return;
+ }
if (!dbus_message_append_args(m,
DBUS_TYPE_STRING, &u->id,
DBUS_TYPE_OBJECT_PATH, &p,
- DBUS_TYPE_INVALID))
- goto oom;
+ DBUS_TYPE_INVALID)) {
+ log_oom();
+ return;
+ }
}
- if (bus_broadcast(u->manager, m) < 0)
- goto oom;
+ r = bus_broadcast(u->manager, m);
+ if (r < 0) {
+ log_error("Failed to broadcast UnitNew/PropertiesChanged message.");
+ return;
+ }
u->sent_dbus_new_signal = true;
-
- return;
-
-oom:
- log_oom();
}
void bus_unit_send_removed_signal(Unit *u) {
(type == JOB_START || type == JOB_RESTART || type == JOB_TRY_RESTART) ? "start" :
type == JOB_STOP ? "stop" : "reload");
- if (type == JOB_STOP && u->load_state == UNIT_ERROR && unit_active_state(u) == UNIT_INACTIVE) {
+ if (type == JOB_STOP && (u->load_state == UNIT_NOT_FOUND || u->load_state == UNIT_ERROR) && unit_active_state(u) == UNIT_INACTIVE) {
dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s not loaded.", u->id);
return bus_send_error_reply(connection, message, &error, -EPERM);
}
return DBUS_HANDLER_RESULT_NEED_MEMORY;
}
+static int bus_unit_set_transient_property(
+ Unit *u,
+ const char *name,
+ DBusMessageIter *i,
+ UnitSetPropertiesMode mode,
+ DBusError *error) {
+
+ int r;
+
+ assert(u);
+ assert(name);
+ assert(i);
+
+ if (streq(name, "Description")) {
+ if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_STRING)
+ return -EINVAL;
+
+ if (mode != UNIT_CHECK) {
+ _cleanup_free_ char *contents = NULL;
+ const char *description;
+
+ dbus_message_iter_get_basic(i, &description);
+
+ r = unit_set_description(u, description);
+ if (r < 0)
+ return r;
+
+ contents = strjoin("[Unit]\nDescription=", description, "\n", NULL);
+ if (!contents)
+ return -ENOMEM;
+
+ unit_write_drop_in(u, mode, "Description", contents);
+ }
+
+ return 1;
+
+ } else if (streq(name, "Slice") && unit_get_cgroup_context(u)) {
+ const char *s;
+ Unit *slice;
+
+ if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_STRING)
+ return -EINVAL;
+
+ dbus_message_iter_get_basic(i, &s);
+
+ if (isempty(s)) {
+ if (mode != UNIT_CHECK)
+ unit_ref_unset(&u->slice);
+ } else {
+ _cleanup_free_ char *contents = NULL;
+
+ r = manager_load_unit(u->manager, s, NULL, error, &slice);
+ if (r < 0)
+ return r;
+
+ if (slice->type != UNIT_SLICE)
+ return -EINVAL;
+
+ if (mode != UNIT_CHECK)
+ unit_ref_set(&u->slice, slice);
+
+ contents = strjoin("[", UNIT_VTABLE(u)->private_section, "]\nSlice=", s, NULL);
+ if (!contents)
+ return -ENOMEM;
+
+ unit_write_drop_in(u, mode, "Slice", contents);
+ }
+ return 1;
+
+ } else if (streq(name, "Requires") ||
+ streq(name, "RequiresOverridable") ||
+ streq(name, "Requisite") ||
+ streq(name, "RequisiteOverridable") ||
+ streq(name, "Wants") ||
+ streq(name, "BindsTo") ||
+ streq(name, "Conflicts") ||
+ streq(name, "Before") ||
+ streq(name, "After") ||
+ streq(name, "OnFailure") ||
+ streq(name, "PropagatesReloadTo") ||
+ streq(name, "ReloadPropagatedFrom") ||
+ streq(name, "PartOf")) {
+
+ UnitDependency d;
+ DBusMessageIter sub;
+
+ d = unit_dependency_from_string(name);
+ if (d < 0)
+ return -EINVAL;
+
+ if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_ARRAY ||
+ dbus_message_iter_get_element_type(i) != DBUS_TYPE_STRING)
+ return -EINVAL;
+
+ dbus_message_iter_recurse(i, &sub);
+ while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING) {
+ const char *other;
+
+ dbus_message_iter_get_basic(&sub, &other);
+
+ if (!unit_name_is_valid(other, false))
+ return -EINVAL;
+
+ if (mode != UNIT_CHECK) {
+ _cleanup_free_ char *label = NULL, *contents = NULL;
+
+ r = unit_add_dependency_by_name(u, d, other, NULL, true);
+ if (r < 0)
+ return r;
+
+ label = strjoin(name, "-", other, NULL);
+ if (!label)
+ return -ENOMEM;
+
+ contents = strjoin("[Unit]\n", name, "=", other, "\n", NULL);
+ if (!contents)
+ return -ENOMEM;
+
+ unit_write_drop_in(u, mode, label, contents);
+ }
+
+ dbus_message_iter_next(&sub);
+ }
+
+ return 1;
+ }
+
+ return 0;
+}
+
+int bus_unit_set_properties(
+ Unit *u,
+ DBusMessageIter *iter,
+ UnitSetPropertiesMode mode,
+ bool commit,
+ DBusError *error) {
+
+ bool for_real = false;
+ DBusMessageIter sub;
+ unsigned n = 0;
+ int r;
+
+ assert(u);
+ assert(iter);
+
+ if (u->transient)
+ mode &= UNIT_RUNTIME;
+
+ /* We iterate through the array twice. First run we just check
+ * if all passed data is valid, second run actually applies
+ * it. This is to implement transaction-like behaviour without
+ * actually providing full transactions. */
+
+ if (dbus_message_iter_get_arg_type(iter) != DBUS_TYPE_ARRAY ||
+ dbus_message_iter_get_element_type(iter) != DBUS_TYPE_STRUCT)
+ return -EINVAL;
+
+ dbus_message_iter_recurse(iter, &sub);
+ for (;;) {
+ DBusMessageIter sub2, sub3;
+ const char *name;
+
+ if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_INVALID) {
+
+ if (for_real)
+ break;
+
+ /* Reached EOF. Let's try again, and this time for realz... */
+ dbus_message_iter_recurse(iter, &sub);
+ for_real = true;
+ continue;
+ }
+
+ if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT)
+ return -EINVAL;
+
+ dbus_message_iter_recurse(&sub, &sub2);
+
+ if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
+ dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT)
+ return -EINVAL;
+
+ if (!UNIT_VTABLE(u)->bus_set_property) {
+ dbus_set_error(error, DBUS_ERROR_PROPERTY_READ_ONLY, "Objects of this type do not support setting properties.");
+ return -ENOENT;
+ }
+
+ dbus_message_iter_recurse(&sub2, &sub3);
+ r = UNIT_VTABLE(u)->bus_set_property(u, name, &sub3, for_real ? mode : UNIT_CHECK, error);
+ if (r == 0 && u->transient && u->load_state == UNIT_STUB)
+ r = bus_unit_set_transient_property(u, name, &sub3, for_real ? mode : UNIT_CHECK, error);
+ if (r < 0)
+ return r;
+ if (r == 0) {
+ dbus_set_error(error, DBUS_ERROR_PROPERTY_READ_ONLY, "Cannot set property %s, or unknown property.", name);
+ return -ENOENT;
+ }
+
+ dbus_message_iter_next(&sub);
+
+ n += for_real;
+ }
+
+ if (commit && n > 0 && UNIT_VTABLE(u)->bus_commit_properties)
+ UNIT_VTABLE(u)->bus_commit_properties(u);
+
+ return n;
+}
+
const BusProperty bus_unit_properties[] = {
{ "Id", bus_property_append_string, "s", offsetof(Unit, id), true },
{ "Names", bus_unit_append_names, "as", 0 },
{ "Following", bus_unit_append_following, "s", 0 },
- { "Slice", bus_unit_append_slice, "s", 0 },
{ "Requires", bus_unit_append_dependencies, "as", offsetof(Unit, dependencies[UNIT_REQUIRES]), true },
{ "RequiresOverridable", bus_unit_append_dependencies, "as", offsetof(Unit, dependencies[UNIT_REQUIRES_OVERRIDABLE]), true },
{ "Requisite", bus_unit_append_dependencies, "as", offsetof(Unit, dependencies[UNIT_REQUISITE]), true },
{ "ConditionTimestampMonotonic", bus_property_append_usec, "t", offsetof(Unit, condition_timestamp.monotonic) },
{ "ConditionResult", bus_property_append_bool, "b", offsetof(Unit, condition_result) },
{ "LoadError", bus_unit_append_load_error, "(ss)", 0 },
- { "ControlGroup", bus_property_append_string, "s", offsetof(Unit, cgroup_path), true },
+ { "Transient", bus_property_append_bool, "b", offsetof(Unit, transient) },
{ NULL, }
};
+
+const BusProperty bus_unit_cgroup_properties[] = {
+ { "Slice", bus_unit_append_slice, "s", 0 },
+ { "ControlGroup", bus_property_append_string, "s", offsetof(Unit, cgroup_path), true },
+};
~ianmdlvl / elogind.git / blobdiff