*
* D-Bus helper library
*
- * Copyright (C) 2004-2009 Marcel Holtmann <marcel@holtmann.org>
+ * Copyright (C) 2004-2011 Marcel Holtmann <marcel@holtmann.org>
*
*
* This program is free software; you can redistribute it and/or modify
#define error(fmt...)
#define debug(fmt...)
+#define DBUS_INTERFACE_OBJECT_MANAGER "org.freedesktop.DBus.ObjectManager"
+
+#ifndef DBUS_ERROR_UNKNOWN_PROPERTY
+#define DBUS_ERROR_UNKNOWN_PROPERTY "org.freedesktop.DBus.Error.UnknownProperty"
+#endif
+
+#ifndef DBUS_ERROR_PROPERTY_READ_ONLY
+#define DBUS_ERROR_PROPERTY_READ_ONLY "org.freedesktop.DBus.Error.PropertyReadOnly"
+#endif
+
struct generic_data {
unsigned int refcount;
+ DBusConnection *conn;
+ char *path;
GSList *interfaces;
+ GSList *objects;
+ GSList *added;
+ GSList *removed;
+ guint process_id;
+ gboolean pending_prop;
char *introspect;
+ struct generic_data *parent;
};
struct interface_data {
char *name;
- GDBusMethodTable *methods;
- GDBusSignalTable *signals;
- GDBusPropertyTable *properties;
+ const GDBusMethodTable *methods;
+ const GDBusSignalTable *signals;
+ const GDBusPropertyTable *properties;
+ GSList *pending_prop;
void *user_data;
GDBusDestroyFunction destroy;
};
-static void print_arguments(GString *gstr, const char *sig,
- const char *direction)
-{
- int i;
+struct security_data {
+ GDBusPendingReply pending;
+ DBusMessage *message;
+ const GDBusMethodTable *method;
+ void *iface_user_data;
+};
- for (i = 0; sig[i]; i++) {
- char type[32];
- int struct_level, dict_level;
- unsigned int len;
- gboolean complete;
-
- complete = FALSE;
- struct_level = dict_level = 0;
- memset(type, 0, sizeof(type));
-
- /* Gather enough data to have a single complete type */
- for (len = 0; len < (sizeof(type) - 1) && sig[i]; len++, i++) {
- switch (sig[i]){
- case '(':
- struct_level++;
- break;
- case ')':
- struct_level--;
- if (struct_level <= 0 && dict_level <= 0)
- complete = TRUE;
- break;
- case '{':
- dict_level++;
- break;
- case '}':
- dict_level--;
- if (struct_level <= 0 && dict_level <= 0)
- complete = TRUE;
- break;
- case 'a':
- break;
- default:
- if (struct_level <= 0 && dict_level <= 0)
- complete = TRUE;
- break;
- }
+struct property_data {
+ DBusConnection *conn;
+ GDBusPendingPropertySet id;
+ DBusMessage *message;
+};
- type[len] = sig[i];
+static int global_flags = 0;
+static struct generic_data *root;
+static GSList *pending = NULL;
- if (complete)
- break;
- }
+static gboolean process_changes(gpointer user_data);
+static void process_properties_from_interface(struct generic_data *data,
+ struct interface_data *iface);
+static void process_property_changes(struct generic_data *data);
+static void print_arguments(GString *gstr, const GDBusArgInfo *args,
+ const char *direction)
+{
+ for (; args && args->name; args++) {
+ g_string_append_printf(gstr,
+ "<arg name=\"%s\" type=\"%s\"",
+ args->name, args->signature);
if (direction)
g_string_append_printf(gstr,
- "\t\t\t<arg type=\"%s\" direction=\"%s\"/>\n",
- type, direction);
+ " direction=\"%s\"/>\n", direction);
else
- g_string_append_printf(gstr,
- "\t\t\t<arg type=\"%s\"/>\n",
- type);
+ g_string_append_printf(gstr, "/>\n");
+
}
}
+#define G_DBUS_ANNOTATE(name_, value_) \
+ "<annotation name=\"org.freedesktop.DBus." name_ "\" " \
+ "value=\"" value_ "\"/>"
+
+#define G_DBUS_ANNOTATE_DEPRECATED \
+ G_DBUS_ANNOTATE("Deprecated", "true")
+
+#define G_DBUS_ANNOTATE_NOREPLY \
+ G_DBUS_ANNOTATE("Method.NoReply", "true")
+
+static gboolean check_experimental(int flags, int flag)
+{
+ if (!(flags & flag))
+ return FALSE;
+
+ return !(global_flags & G_DBUS_FLAG_ENABLE_EXPERIMENTAL);
+}
+
static void generate_interface_xml(GString *gstr, struct interface_data *iface)
{
- GDBusMethodTable *method;
- GDBusSignalTable *signal;
+ const GDBusMethodTable *method;
+ const GDBusSignalTable *signal;
+ const GDBusPropertyTable *property;
for (method = iface->methods; method && method->name; method++) {
- if (!strlen(method->signature) && !strlen(method->reply))
- g_string_append_printf(gstr, "\t\t<method name=\"%s\"/>\n",
- method->name);
- else {
- g_string_append_printf(gstr, "\t\t<method name=\"%s\">\n",
+ if (check_experimental(method->flags,
+ G_DBUS_METHOD_FLAG_EXPERIMENTAL))
+ continue;
+
+ g_string_append_printf(gstr, "<method name=\"%s\">",
method->name);
- print_arguments(gstr, method->signature, "in");
- print_arguments(gstr, method->reply, "out");
- g_string_append_printf(gstr, "\t\t</method>\n");
- }
+ print_arguments(gstr, method->in_args, "in");
+ print_arguments(gstr, method->out_args, "out");
+
+ if (method->flags & G_DBUS_METHOD_FLAG_DEPRECATED)
+ g_string_append_printf(gstr,
+ G_DBUS_ANNOTATE_DEPRECATED);
+
+ if (method->flags & G_DBUS_METHOD_FLAG_NOREPLY)
+ g_string_append_printf(gstr, G_DBUS_ANNOTATE_NOREPLY);
+
+ g_string_append_printf(gstr, "</method>");
}
for (signal = iface->signals; signal && signal->name; signal++) {
- if (!strlen(signal->signature))
- g_string_append_printf(gstr, "\t\t<signal name=\"%s\"/>\n",
- signal->name);
- else {
- g_string_append_printf(gstr, "\t\t<signal name=\"%s\">\n",
+ if (check_experimental(signal->flags,
+ G_DBUS_SIGNAL_FLAG_EXPERIMENTAL))
+ continue;
+
+ g_string_append_printf(gstr, "<signal name=\"%s\">",
signal->name);
- print_arguments(gstr, signal->signature, NULL);
- g_string_append_printf(gstr, "\t\t</signal>\n");
- }
+ print_arguments(gstr, signal->args, NULL);
+
+ if (signal->flags & G_DBUS_SIGNAL_FLAG_DEPRECATED)
+ g_string_append_printf(gstr,
+ G_DBUS_ANNOTATE_DEPRECATED);
+
+ g_string_append_printf(gstr, "</signal>\n");
+ }
+
+ for (property = iface->properties; property && property->name;
+ property++) {
+ if (check_experimental(property->flags,
+ G_DBUS_PROPERTY_FLAG_EXPERIMENTAL))
+ continue;
+
+ g_string_append_printf(gstr, "<property name=\"%s\""
+ " type=\"%s\" access=\"%s%s\">",
+ property->name, property->type,
+ property->get ? "read" : "",
+ property->set ? "write" : "");
+
+ if (property->flags & G_DBUS_PROPERTY_FLAG_DEPRECATED)
+ g_string_append_printf(gstr,
+ G_DBUS_ANNOTATE_DEPRECATED);
+
+ g_string_append_printf(gstr, "</property>");
}
}
gstr = g_string_new(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE);
- g_string_append_printf(gstr, "<node name=\"%s\">\n", path);
+ g_string_append_printf(gstr, "<node>");
for (list = data->interfaces; list; list = list->next) {
struct interface_data *iface = list->data;
- g_string_append_printf(gstr, "\t<interface name=\"%s\">\n",
+ g_string_append_printf(gstr, "<interface name=\"%s\">",
iface->name);
generate_interface_xml(gstr, iface);
- g_string_append_printf(gstr, "\t</interface>\n");
+ g_string_append_printf(gstr, "</interface>");
}
if (!dbus_connection_list_registered(conn, path, &children))
goto done;
for (i = 0; children[i]; i++)
- g_string_append_printf(gstr, "\t<node name=\"%s\"/>\n",
+ g_string_append_printf(gstr, "<node name=\"%s\"/>",
children[i]);
dbus_free_string_array(children);
done:
- g_string_append_printf(gstr, "</node>\n");
+ g_string_append_printf(gstr, "</node>");
data->introspect = g_string_free(gstr, FALSE);
}
struct generic_data *data = user_data;
DBusMessage *reply;
- if (!dbus_message_has_signature(message, DBUS_TYPE_INVALID_AS_STRING)) {
- error("Unexpected signature to introspect call");
- return NULL;
- }
-
- if (!data->introspect)
+ if (data->introspect == NULL)
generate_introspection_xml(connection, data,
dbus_message_get_path(message));
reply = dbus_message_new_method_return(message);
- if (!reply)
+ if (reply == NULL)
return NULL;
dbus_message_append_args(reply, DBUS_TYPE_STRING, &data->introspect,
return reply;
}
-static void generic_unregister(DBusConnection *connection, void *user_data)
+static DBusHandlerResult process_message(DBusConnection *connection,
+ DBusMessage *message, const GDBusMethodTable *method,
+ void *iface_user_data)
{
- struct generic_data *data = user_data;
+ DBusMessage *reply;
+
+ reply = method->function(connection, message, iface_user_data);
+
+ if (method->flags & G_DBUS_METHOD_FLAG_NOREPLY ||
+ dbus_message_get_no_reply(message)) {
+ if (reply != NULL)
+ dbus_message_unref(reply);
+ return DBUS_HANDLER_RESULT_HANDLED;
+ }
+
+ if (method->flags & G_DBUS_METHOD_FLAG_ASYNC) {
+ if (reply == NULL)
+ return DBUS_HANDLER_RESULT_HANDLED;
+ }
+
+ if (reply == NULL)
+ return DBUS_HANDLER_RESULT_NEED_MEMORY;
+
+ g_dbus_send_message(connection, reply);
+
+ return DBUS_HANDLER_RESULT_HANDLED;
+}
+
+static GDBusPendingReply next_pending = 1;
+static GSList *pending_security = NULL;
+
+static const GDBusSecurityTable *security_table = NULL;
+
+void g_dbus_pending_success(DBusConnection *connection,
+ GDBusPendingReply pending)
+{
+ GSList *list;
+
+ for (list = pending_security; list; list = list->next) {
+ struct security_data *secdata = list->data;
+
+ if (secdata->pending != pending)
+ continue;
+
+ pending_security = g_slist_remove(pending_security, secdata);
+
+ process_message(connection, secdata->message,
+ secdata->method, secdata->iface_user_data);
+
+ dbus_message_unref(secdata->message);
+ g_free(secdata);
+ return;
+ }
+}
+
+void g_dbus_pending_error_valist(DBusConnection *connection,
+ GDBusPendingReply pending, const char *name,
+ const char *format, va_list args)
+{
+ GSList *list;
+
+ for (list = pending_security; list; list = list->next) {
+ struct security_data *secdata = list->data;
+
+ if (secdata->pending != pending)
+ continue;
+
+ pending_security = g_slist_remove(pending_security, secdata);
+
+ g_dbus_send_error_valist(connection, secdata->message,
+ name, format, args);
+
+ dbus_message_unref(secdata->message);
+ g_free(secdata);
+ return;
+ }
+}
+
+void g_dbus_pending_error(DBusConnection *connection,
+ GDBusPendingReply pending,
+ const char *name, const char *format, ...)
+{
+ va_list args;
+
+ va_start(args, format);
+
+ g_dbus_pending_error_valist(connection, pending, name, format, args);
+
+ va_end(args);
+}
+
+int polkit_check_authorization(DBusConnection *conn,
+ const char *action, gboolean interaction,
+ void (*function) (dbus_bool_t authorized,
+ void *user_data),
+ void *user_data, int timeout);
+
+struct builtin_security_data {
+ DBusConnection *conn;
+ GDBusPendingReply pending;
+};
+
+static void builtin_security_result(dbus_bool_t authorized, void *user_data)
+{
+ struct builtin_security_data *data = user_data;
+
+ if (authorized == TRUE)
+ g_dbus_pending_success(data->conn, data->pending);
+ else
+ g_dbus_pending_error(data->conn, data->pending,
+ DBUS_ERROR_AUTH_FAILED, NULL);
- g_free(data->introspect);
g_free(data);
}
+static void builtin_security_function(DBusConnection *conn,
+ const char *action,
+ gboolean interaction,
+ GDBusPendingReply pending)
+{
+ struct builtin_security_data *data;
+
+ data = g_new0(struct builtin_security_data, 1);
+ data->conn = conn;
+ data->pending = pending;
+
+ if (polkit_check_authorization(conn, action, interaction,
+ builtin_security_result, data, 30000) < 0)
+ g_dbus_pending_error(conn, pending, NULL, NULL);
+}
+
+static gboolean check_privilege(DBusConnection *conn, DBusMessage *msg,
+ const GDBusMethodTable *method, void *iface_user_data)
+{
+ const GDBusSecurityTable *security;
+
+ for (security = security_table; security && security->privilege;
+ security++) {
+ struct security_data *secdata;
+ gboolean interaction;
+
+ if (security->privilege != method->privilege)
+ continue;
+
+ secdata = g_new(struct security_data, 1);
+ secdata->pending = next_pending++;
+ secdata->message = dbus_message_ref(msg);
+ secdata->method = method;
+ secdata->iface_user_data = iface_user_data;
+
+ pending_security = g_slist_prepend(pending_security, secdata);
+
+ if (security->flags & G_DBUS_SECURITY_FLAG_ALLOW_INTERACTION)
+ interaction = TRUE;
+ else
+ interaction = FALSE;
+
+ if (!(security->flags & G_DBUS_SECURITY_FLAG_BUILTIN) &&
+ security->function)
+ security->function(conn, security->action,
+ interaction, secdata->pending);
+ else
+ builtin_security_function(conn, security->action,
+ interaction, secdata->pending);
+
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static GDBusPendingPropertySet next_pending_property = 1;
+static GSList *pending_property_set;
+
+static struct property_data *remove_pending_property_data(
+ GDBusPendingPropertySet id)
+{
+ struct property_data *propdata;
+ GSList *l;
+
+ for (l = pending_property_set; l != NULL; l = l->next) {
+ propdata = l->data;
+ if (propdata->id != id)
+ continue;
+
+ break;
+ }
+
+ if (l == NULL)
+ return NULL;
+
+ pending_property_set = g_slist_delete_link(pending_property_set, l);
+
+ return propdata;
+}
+
+void g_dbus_pending_property_success(GDBusPendingPropertySet id)
+{
+ struct property_data *propdata;
+
+ propdata = remove_pending_property_data(id);
+ if (propdata == NULL)
+ return;
+
+ g_dbus_send_reply(propdata->conn, propdata->message,
+ DBUS_TYPE_INVALID);
+ dbus_message_unref(propdata->message);
+ g_free(propdata);
+}
+
+void g_dbus_pending_property_error_valist(GDBusPendingReply id,
+ const char *name, const char *format,
+ va_list args)
+{
+ struct property_data *propdata;
+
+ propdata = remove_pending_property_data(id);
+ if (propdata == NULL)
+ return;
+
+ g_dbus_send_error_valist(propdata->conn, propdata->message, name,
+ format, args);
+
+ dbus_message_unref(propdata->message);
+ g_free(propdata);
+}
+
+void g_dbus_pending_property_error(GDBusPendingReply id, const char *name,
+ const char *format, ...)
+{
+ va_list args;
+
+ va_start(args, format);
+
+ g_dbus_pending_property_error_valist(id, name, format, args);
+
+ va_end(args);
+}
+
+static void reset_parent(gpointer data, gpointer user_data)
+{
+ struct generic_data *child = data;
+ struct generic_data *parent = user_data;
+
+ child->parent = parent;
+}
+
+static void append_property(struct interface_data *iface,
+ const GDBusPropertyTable *p, DBusMessageIter *dict)
+{
+ DBusMessageIter entry, value;
+
+ dbus_message_iter_open_container(dict, DBUS_TYPE_DICT_ENTRY, NULL,
+ &entry);
+ dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &p->name);
+ dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT, p->type,
+ &value);
+
+ p->get(p, &value, iface->user_data);
+
+ dbus_message_iter_close_container(&entry, &value);
+ dbus_message_iter_close_container(dict, &entry);
+}
+
+static void append_properties(struct interface_data *data,
+ DBusMessageIter *iter)
+{
+ DBusMessageIter dict;
+ const GDBusPropertyTable *p;
+
+ dbus_message_iter_open_container(iter, DBUS_TYPE_ARRAY,
+ DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
+ DBUS_TYPE_STRING_AS_STRING
+ DBUS_TYPE_VARIANT_AS_STRING
+ DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
+
+ for (p = data->properties; p && p->name; p++) {
+ if (check_experimental(p->flags,
+ G_DBUS_PROPERTY_FLAG_EXPERIMENTAL))
+ continue;
+
+ if (p->get == NULL)
+ continue;
+
+ if (p->exists != NULL && !p->exists(p, data->user_data))
+ continue;
+
+ append_property(data, p, &dict);
+ }
+
+ dbus_message_iter_close_container(iter, &dict);
+}
+
+static void append_interface(gpointer data, gpointer user_data)
+{
+ struct interface_data *iface = data;
+ DBusMessageIter *array = user_data;
+ DBusMessageIter entry;
+
+ dbus_message_iter_open_container(array, DBUS_TYPE_DICT_ENTRY, NULL,
+ &entry);
+ dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &iface->name);
+ append_properties(data, &entry);
+ dbus_message_iter_close_container(array, &entry);
+}
+
+static void emit_interfaces_added(struct generic_data *data)
+{
+ DBusMessage *signal;
+ DBusMessageIter iter, array;
+
+ if (root == NULL || data == root)
+ return;
+
+ signal = dbus_message_new_signal(root->path,
+ DBUS_INTERFACE_OBJECT_MANAGER,
+ "InterfacesAdded");
+ if (signal == NULL)
+ return;
+
+ dbus_message_iter_init_append(signal, &iter);
+ dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH,
+ &data->path);
+
+ dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
+ DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
+ DBUS_TYPE_STRING_AS_STRING
+ DBUS_TYPE_ARRAY_AS_STRING
+ DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
+ DBUS_TYPE_STRING_AS_STRING
+ DBUS_TYPE_VARIANT_AS_STRING
+ DBUS_DICT_ENTRY_END_CHAR_AS_STRING
+ DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &array);
+
+ g_slist_foreach(data->added, append_interface, &array);
+ g_slist_free(data->added);
+ data->added = NULL;
+
+ dbus_message_iter_close_container(&iter, &array);
+
+ /* Use dbus_connection_send to avoid recursive calls to g_dbus_flush */
+ dbus_connection_send(data->conn, signal, NULL);
+ dbus_message_unref(signal);
+}
+
static struct interface_data *find_interface(GSList *interfaces,
const char *name)
{
GSList *list;
- if (!name)
+ if (name == NULL)
return NULL;
for (list = interfaces; list; list = list->next) {
return NULL;
}
+static gboolean g_dbus_args_have_signature(const GDBusArgInfo *args,
+ DBusMessage *message)
+{
+ const char *sig = dbus_message_get_signature(message);
+ const char *p = NULL;
+
+ for (; args && args->signature && *sig; args++) {
+ p = args->signature;
+
+ for (; *sig && *p; sig++, p++) {
+ if (*p != *sig)
+ return FALSE;
+ }
+ }
+
+ if (*sig || (p && *p) || (args && args->signature))
+ return FALSE;
+
+ return TRUE;
+}
+
+static void add_pending(struct generic_data *data)
+{
+ if (data->process_id > 0)
+ return;
+
+ data->process_id = g_idle_add(process_changes, data);
+
+ pending = g_slist_append(pending, data);
+}
+
+static gboolean remove_interface(struct generic_data *data, const char *name)
+{
+ struct interface_data *iface;
+
+ iface = find_interface(data->interfaces, name);
+ if (iface == NULL)
+ return FALSE;
+
+ process_properties_from_interface(data, iface);
+
+ data->interfaces = g_slist_remove(data->interfaces, iface);
+
+ if (iface->destroy) {
+ iface->destroy(iface->user_data);
+ iface->user_data = NULL;
+ }
+
+ /*
+ * Interface being removed was just added, on the same mainloop
+ * iteration? Don't send any signal
+ */
+ if (g_slist_find(data->added, iface)) {
+ data->added = g_slist_remove(data->added, iface);
+ g_free(iface->name);
+ g_free(iface);
+ return TRUE;
+ }
+
+ if (data->parent == NULL) {
+ g_free(iface->name);
+ g_free(iface);
+ return TRUE;
+ }
+
+ data->removed = g_slist_prepend(data->removed, iface->name);
+ g_free(iface);
+
+ add_pending(data);
+
+ return TRUE;
+}
+
+static struct generic_data *invalidate_parent_data(DBusConnection *conn,
+ const char *child_path)
+{
+ struct generic_data *data = NULL, *child = NULL, *parent = NULL;
+ char *parent_path, *slash;
+
+ parent_path = g_strdup(child_path);
+ slash = strrchr(parent_path, '/');
+ if (slash == NULL)
+ goto done;
+
+ if (slash == parent_path && parent_path[1] != '\0')
+ parent_path[1] = '\0';
+ else
+ *slash = '\0';
+
+ if (!strlen(parent_path))
+ goto done;
+
+ if (dbus_connection_get_object_path_data(conn, parent_path,
+ (void *) &data) == FALSE) {
+ goto done;
+ }
+
+ parent = invalidate_parent_data(conn, parent_path);
+
+ if (data == NULL) {
+ data = parent;
+ if (data == NULL)
+ goto done;
+ }
+
+ g_free(data->introspect);
+ data->introspect = NULL;
+
+ if (!dbus_connection_get_object_path_data(conn, child_path,
+ (void *) &child))
+ goto done;
+
+ if (child == NULL || g_slist_find(data->objects, child) != NULL)
+ goto done;
+
+ data->objects = g_slist_prepend(data->objects, child);
+ child->parent = data;
+
+done:
+ g_free(parent_path);
+ return data;
+}
+
+static inline const GDBusPropertyTable *find_property(const GDBusPropertyTable *properties,
+ const char *name)
+{
+ const GDBusPropertyTable *p;
+
+ for (p = properties; p && p->name; p++) {
+ if (strcmp(name, p->name) != 0)
+ continue;
+
+ if (check_experimental(p->flags,
+ G_DBUS_PROPERTY_FLAG_EXPERIMENTAL))
+ break;
+
+ return p;
+ }
+
+ return NULL;
+}
+
+static DBusMessage *properties_get(DBusConnection *connection,
+ DBusMessage *message, void *user_data)
+{
+ struct generic_data *data = user_data;
+ struct interface_data *iface;
+ const GDBusPropertyTable *property;
+ const char *interface, *name;
+ DBusMessageIter iter, value;
+ DBusMessage *reply;
+
+ if (!dbus_message_get_args(message, NULL,
+ DBUS_TYPE_STRING, &interface,
+ DBUS_TYPE_STRING, &name,
+ DBUS_TYPE_INVALID))
+ return NULL;
+
+ iface = find_interface(data->interfaces, interface);
+ if (iface == NULL)
+ return g_dbus_create_error(message, DBUS_ERROR_INVALID_ARGS,
+ "No such interface '%s'", interface);
+
+ property = find_property(iface->properties, name);
+ if (property == NULL)
+ return g_dbus_create_error(message, DBUS_ERROR_INVALID_ARGS,
+ "No such property '%s'", name);
+
+ if (property->exists != NULL &&
+ !property->exists(property, iface->user_data))
+ return g_dbus_create_error(message, DBUS_ERROR_INVALID_ARGS,
+ "No such property '%s'", name);
+
+ if (property->get == NULL)
+ return g_dbus_create_error(message, DBUS_ERROR_INVALID_ARGS,
+ "Property '%s' is not readable", name);
+
+ reply = dbus_message_new_method_return(message);
+ if (reply == NULL)
+ return NULL;
+
+ dbus_message_iter_init_append(reply, &iter);
+ dbus_message_iter_open_container(&iter, DBUS_TYPE_VARIANT,
+ property->type, &value);
+
+ if (!property->get(property, &value, iface->user_data)) {
+ dbus_message_unref(reply);
+ return NULL;
+ }
+
+ dbus_message_iter_close_container(&iter, &value);
+
+ return reply;
+}
+
+static DBusMessage *properties_get_all(DBusConnection *connection,
+ DBusMessage *message, void *user_data)
+{
+ struct generic_data *data = user_data;
+ struct interface_data *iface;
+ const char *interface;
+ DBusMessageIter iter;
+ DBusMessage *reply;
+
+ if (!dbus_message_get_args(message, NULL,
+ DBUS_TYPE_STRING, &interface,
+ DBUS_TYPE_INVALID))
+ return NULL;
+
+ iface = find_interface(data->interfaces, interface);
+ if (iface == NULL)
+ return g_dbus_create_error(message, DBUS_ERROR_INVALID_ARGS,
+ "No such interface '%s'", interface);
+
+ reply = dbus_message_new_method_return(message);
+ if (reply == NULL)
+ return NULL;
+
+ dbus_message_iter_init_append(reply, &iter);
+
+ append_properties(iface, &iter);
+
+ return reply;
+}
+
+static DBusMessage *properties_set(DBusConnection *connection,
+ DBusMessage *message, void *user_data)
+{
+ struct generic_data *data = user_data;
+ DBusMessageIter iter, sub;
+ struct interface_data *iface;
+ const GDBusPropertyTable *property;
+ const char *name, *interface;
+ struct property_data *propdata;
+ gboolean valid_signature;
+ char *signature;
+
+ if (!dbus_message_iter_init(message, &iter))
+ return g_dbus_create_error(message, DBUS_ERROR_INVALID_ARGS,
+ "No arguments given");
+
+ if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
+ return g_dbus_create_error(message, DBUS_ERROR_INVALID_ARGS,
+ "Invalid argument type: '%c'",
+ dbus_message_iter_get_arg_type(&iter));
+
+ dbus_message_iter_get_basic(&iter, &interface);
+ dbus_message_iter_next(&iter);
+
+ if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
+ return g_dbus_create_error(message, DBUS_ERROR_INVALID_ARGS,
+ "Invalid argument type: '%c'",
+ dbus_message_iter_get_arg_type(&iter));
+
+ dbus_message_iter_get_basic(&iter, &name);
+ dbus_message_iter_next(&iter);
+
+ if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
+ return g_dbus_create_error(message, DBUS_ERROR_INVALID_ARGS,
+ "Invalid argument type: '%c'",
+ dbus_message_iter_get_arg_type(&iter));
+
+ dbus_message_iter_recurse(&iter, &sub);
+
+ iface = find_interface(data->interfaces, interface);
+ if (iface == NULL)
+ return g_dbus_create_error(message, DBUS_ERROR_INVALID_ARGS,
+ "No such interface '%s'", interface);
+
+ property = find_property(iface->properties, name);
+ if (property == NULL)
+ return g_dbus_create_error(message,
+ DBUS_ERROR_UNKNOWN_PROPERTY,
+ "No such property '%s'", name);
+
+ if (property->set == NULL)
+ return g_dbus_create_error(message,
+ DBUS_ERROR_PROPERTY_READ_ONLY,
+ "Property '%s' is not writable", name);
+
+ if (property->exists != NULL &&
+ !property->exists(property, iface->user_data))
+ return g_dbus_create_error(message,
+ DBUS_ERROR_UNKNOWN_PROPERTY,
+ "No such property '%s'", name);
+
+ signature = dbus_message_iter_get_signature(&sub);
+ valid_signature = strcmp(signature, property->type) ? FALSE : TRUE;
+ dbus_free(signature);
+ if (!valid_signature)
+ return g_dbus_create_error(message,
+ DBUS_ERROR_INVALID_SIGNATURE,
+ "Invalid signature for '%s'", name);
+
+ propdata = g_new(struct property_data, 1);
+ propdata->id = next_pending_property++;
+ propdata->message = dbus_message_ref(message);
+ propdata->conn = connection;
+ pending_property_set = g_slist_prepend(pending_property_set, propdata);
+
+ property->set(property, &sub, propdata->id, iface->user_data);
+
+ return NULL;
+}
+
+static const GDBusMethodTable properties_methods[] = {
+ { GDBUS_METHOD("Get",
+ GDBUS_ARGS({ "interface", "s" }, { "name", "s" }),
+ GDBUS_ARGS({ "value", "v" }),
+ properties_get) },
+ { GDBUS_ASYNC_METHOD("Set",
+ GDBUS_ARGS({ "interface", "s" }, { "name", "s" },
+ { "value", "v" }),
+ NULL,
+ properties_set) },
+ { GDBUS_METHOD("GetAll",
+ GDBUS_ARGS({ "interface", "s" }),
+ GDBUS_ARGS({ "properties", "a{sv}" }),
+ properties_get_all) },
+ { }
+};
+
+static const GDBusSignalTable properties_signals[] = {
+ { GDBUS_SIGNAL("PropertiesChanged",
+ GDBUS_ARGS({ "interface", "s" },
+ { "changed_properties", "a{sv}" },
+ { "invalidated_properties", "as"})) },
+ { }
+};
+
+static void append_name(gpointer data, gpointer user_data)
+{
+ char *name = data;
+ DBusMessageIter *iter = user_data;
+
+ dbus_message_iter_append_basic(iter, DBUS_TYPE_STRING, &name);
+}
+
+static void emit_interfaces_removed(struct generic_data *data)
+{
+ DBusMessage *signal;
+ DBusMessageIter iter, array;
+
+ if (root == NULL || data == root)
+ return;
+
+ signal = dbus_message_new_signal(root->path,
+ DBUS_INTERFACE_OBJECT_MANAGER,
+ "InterfacesRemoved");
+ if (signal == NULL)
+ return;
+
+ dbus_message_iter_init_append(signal, &iter);
+ dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH,
+ &data->path);
+ dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
+ DBUS_TYPE_STRING_AS_STRING, &array);
+
+ g_slist_foreach(data->removed, append_name, &array);
+ g_slist_free_full(data->removed, g_free);
+ data->removed = NULL;
+
+ dbus_message_iter_close_container(&iter, &array);
+
+ /* Use dbus_connection_send to avoid recursive calls to g_dbus_flush */
+ dbus_connection_send(data->conn, signal, NULL);
+ dbus_message_unref(signal);
+}
+
+static void remove_pending(struct generic_data *data)
+{
+ if (data->process_id > 0) {
+ g_source_remove(data->process_id);
+ data->process_id = 0;
+ }
+
+ pending = g_slist_remove(pending, data);
+}
+
+static gboolean process_changes(gpointer user_data)
+{
+ struct generic_data *data = user_data;
+
+ remove_pending(data);
+
+ if (data->added != NULL)
+ emit_interfaces_added(data);
+
+ /* Flush pending properties */
+ if (data->pending_prop == TRUE)
+ process_property_changes(data);
+
+ if (data->removed != NULL)
+ emit_interfaces_removed(data);
+
+ data->process_id = 0;
+
+ return FALSE;
+}
+
+static void generic_unregister(DBusConnection *connection, void *user_data)
+{
+ struct generic_data *data = user_data;
+ struct generic_data *parent = data->parent;
+
+ if (parent != NULL)
+ parent->objects = g_slist_remove(parent->objects, data);
+
+ if (data->process_id > 0) {
+ g_source_remove(data->process_id);
+ data->process_id = 0;
+ process_changes(data);
+ }
+
+ g_slist_foreach(data->objects, reset_parent, data->parent);
+ g_slist_free(data->objects);
+
+ dbus_connection_unref(data->conn);
+ g_free(data->introspect);
+ g_free(data->path);
+ g_free(data);
+}
+
static DBusHandlerResult generic_message(DBusConnection *connection,
DBusMessage *message, void *user_data)
{
struct generic_data *data = user_data;
struct interface_data *iface;
- GDBusMethodTable *method;
+ const GDBusMethodTable *method;
const char *interface;
interface = dbus_message_get_interface(message);
iface = find_interface(data->interfaces, interface);
- if (!iface)
+ if (iface == NULL)
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
for (method = iface->methods; method &&
method->name && method->function; method++) {
- DBusMessage *reply;
if (dbus_message_is_method_call(message, iface->name,
method->name) == FALSE)
continue;
- if (dbus_message_has_signature(message,
- method->signature) == FALSE)
- continue;
+ if (check_experimental(method->flags,
+ G_DBUS_METHOD_FLAG_EXPERIMENTAL))
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
- reply = method->function(connection, message, iface->user_data);
+ if (g_dbus_args_have_signature(method->in_args,
+ message) == FALSE)
+ continue;
- if (method->flags & G_DBUS_METHOD_FLAG_NOREPLY) {
- if (reply != NULL)
- dbus_message_unref(reply);
+ if (check_privilege(connection, message, method,
+ iface->user_data) == TRUE)
return DBUS_HANDLER_RESULT_HANDLED;
- }
-
- if (method->flags & G_DBUS_METHOD_FLAG_ASYNC) {
- if (reply == NULL)
- return DBUS_HANDLER_RESULT_HANDLED;
- }
-
- if (reply == NULL)
- return DBUS_HANDLER_RESULT_NEED_MEMORY;
- dbus_connection_send(connection, reply, NULL);
- dbus_message_unref(reply);
-
- return DBUS_HANDLER_RESULT_HANDLED;
+ return process_message(connection, message, method,
+ iface->user_data);
}
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
.message_function = generic_message,
};
-static void invalidate_parent_data(DBusConnection *conn, const char *child_path)
+static const GDBusMethodTable introspect_methods[] = {
+ { GDBUS_METHOD("Introspect", NULL,
+ GDBUS_ARGS({ "xml", "s" }), introspect) },
+ { }
+};
+
+static void append_interfaces(struct generic_data *data, DBusMessageIter *iter)
{
- struct generic_data *data = NULL;
- char *parent_path, *slash;
+ DBusMessageIter array;
- parent_path = g_strdup(child_path);
- slash = strrchr(parent_path, '/');
- if (!slash)
- goto done;
+ dbus_message_iter_open_container(iter, DBUS_TYPE_ARRAY,
+ DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
+ DBUS_TYPE_STRING_AS_STRING
+ DBUS_TYPE_ARRAY_AS_STRING
+ DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
+ DBUS_TYPE_STRING_AS_STRING
+ DBUS_TYPE_VARIANT_AS_STRING
+ DBUS_DICT_ENTRY_END_CHAR_AS_STRING
+ DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &array);
- if (slash == parent_path && parent_path[1] != '\0')
- parent_path[1] = '\0';
- else
- *slash = '\0';
+ g_slist_foreach(data->interfaces, append_interface, &array);
+
+ dbus_message_iter_close_container(iter, &array);
+}
+
+static void append_object(gpointer data, gpointer user_data)
+{
+ struct generic_data *child = data;
+ DBusMessageIter *array = user_data;
+ DBusMessageIter entry;
+
+ dbus_message_iter_open_container(array, DBUS_TYPE_DICT_ENTRY, NULL,
+ &entry);
+ dbus_message_iter_append_basic(&entry, DBUS_TYPE_OBJECT_PATH,
+ &child->path);
+ append_interfaces(child, &entry);
+ dbus_message_iter_close_container(array, &entry);
+
+ g_slist_foreach(child->objects, append_object, user_data);
+}
+
+static DBusMessage *get_objects(DBusConnection *connection,
+ DBusMessage *message, void *user_data)
+{
+ struct generic_data *data = user_data;
+ DBusMessage *reply;
+ DBusMessageIter iter;
+ DBusMessageIter array;
+
+ reply = dbus_message_new_method_return(message);
+ if (reply == NULL)
+ return NULL;
- if (!strlen(parent_path))
- goto done;
+ dbus_message_iter_init_append(reply, &iter);
- if (!dbus_connection_get_object_path_data(conn, parent_path,
- (void *) &data))
- goto done;
+ dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
+ DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
+ DBUS_TYPE_OBJECT_PATH_AS_STRING
+ DBUS_TYPE_ARRAY_AS_STRING
+ DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
+ DBUS_TYPE_STRING_AS_STRING
+ DBUS_TYPE_ARRAY_AS_STRING
+ DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
+ DBUS_TYPE_STRING_AS_STRING
+ DBUS_TYPE_VARIANT_AS_STRING
+ DBUS_DICT_ENTRY_END_CHAR_AS_STRING
+ DBUS_DICT_ENTRY_END_CHAR_AS_STRING
+ DBUS_DICT_ENTRY_END_CHAR_AS_STRING,
+ &array);
- if (!data)
- goto done;
+ g_slist_foreach(data->objects, append_object, &array);
- g_free(data->introspect);
- data->introspect = NULL;
+ dbus_message_iter_close_container(&iter, &array);
-done:
- g_free(parent_path);
+ return reply;
}
-static GDBusMethodTable introspect_methods[] = {
- { "Introspect", "", "s", introspect },
+static const GDBusMethodTable manager_methods[] = {
+ { GDBUS_METHOD("GetManagedObjects", NULL,
+ GDBUS_ARGS({ "objects", "a{oa{sa{sv}}}" }), get_objects) },
+ { }
+};
+
+static const GDBusSignalTable manager_signals[] = {
+ { GDBUS_SIGNAL("InterfacesAdded",
+ GDBUS_ARGS({ "object", "o" },
+ { "interfaces", "a{sa{sv}}" })) },
+ { GDBUS_SIGNAL("InterfacesRemoved",
+ GDBUS_ARGS({ "object", "o" }, { "interfaces", "as" })) },
{ }
};
-static void add_interface(struct generic_data *data, const char *name,
- GDBusMethodTable *methods,
- GDBusSignalTable *signals,
- GDBusPropertyTable *properties,
+static gboolean add_interface(struct generic_data *data,
+ const char *name,
+ const GDBusMethodTable *methods,
+ const GDBusSignalTable *signals,
+ const GDBusPropertyTable *properties,
void *user_data,
GDBusDestroyFunction destroy)
{
struct interface_data *iface;
+ const GDBusMethodTable *method;
+ const GDBusSignalTable *signal;
+ const GDBusPropertyTable *property;
+
+ for (method = methods; method && method->name; method++) {
+ if (!check_experimental(method->flags,
+ G_DBUS_METHOD_FLAG_EXPERIMENTAL))
+ goto done;
+ }
+
+ for (signal = signals; signal && signal->name; signal++) {
+ if (!check_experimental(signal->flags,
+ G_DBUS_SIGNAL_FLAG_EXPERIMENTAL))
+ goto done;
+ }
+
+ for (property = properties; property && property->name; property++) {
+ if (!check_experimental(property->flags,
+ G_DBUS_PROPERTY_FLAG_EXPERIMENTAL))
+ goto done;
+ }
+
+ /* Nothing to register */
+ return FALSE;
+done:
iface = g_new0(struct interface_data, 1);
iface->name = g_strdup(name);
iface->methods = methods;
iface->destroy = destroy;
data->interfaces = g_slist_append(data->interfaces, iface);
+ if (data->parent == NULL)
+ return TRUE;
+
+ data->added = g_slist_append(data->added, iface);
+
+ add_pending(data);
+
+ return TRUE;
}
static struct generic_data *object_path_ref(DBusConnection *connection,
}
data = g_new0(struct generic_data, 1);
+ data->conn = dbus_connection_ref(connection);
+ data->path = g_strdup(path);
+ data->refcount = 1;
data->introspect = g_strdup(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE "<node></node>");
- data->refcount = 1;
-
if (!dbus_connection_register_object_path(connection, path,
&generic_table, data)) {
+#if !defined TIZEN_EXT
+ dbus_connection_unref(data->conn);
+ g_free(data->path);
+#endif
g_free(data->introspect);
g_free(data);
return NULL;
invalidate_parent_data(connection, path);
- add_interface(data, DBUS_INTERFACE_INTROSPECTABLE,
- introspect_methods, NULL, NULL, data, NULL);
+ add_interface(data, DBUS_INTERFACE_INTROSPECTABLE, introspect_methods,
+ NULL, NULL, data, NULL);
return data;
}
-static gboolean remove_interface(struct generic_data *data, const char *name)
-{
- struct interface_data *iface;
-
- iface = find_interface(data->interfaces, name);
- if (!iface)
- return FALSE;
-
- data->interfaces = g_slist_remove(data->interfaces, iface);
-
- if (iface->destroy)
- iface->destroy(iface->user_data);
-
- g_free(iface->name);
- g_free(iface);
-
- return TRUE;
-}
-
static void object_path_unref(DBusConnection *connection, const char *path)
{
struct generic_data *data = NULL;
return;
remove_interface(data, DBUS_INTERFACE_INTROSPECTABLE);
+ remove_interface(data, DBUS_INTERFACE_PROPERTIES);
- invalidate_parent_data(connection, path);
+ invalidate_parent_data(data->conn, data->path);
- dbus_connection_unregister_object_path(connection, path);
+ dbus_connection_unregister_object_path(data->conn, data->path);
}
static gboolean check_signal(DBusConnection *conn, const char *path,
const char *interface, const char *name,
- const char **args)
+ const GDBusArgInfo **args)
{
struct generic_data *data = NULL;
struct interface_data *iface;
- GDBusSignalTable *signal;
+ const GDBusSignalTable *signal;
*args = NULL;
if (!dbus_connection_get_object_path_data(conn, path,
- (void *) &data) || !data) {
+ (void *) &data) || data == NULL) {
error("dbus_connection_emit_signal: path %s isn't registered",
path);
return FALSE;
}
iface = find_interface(data->interfaces, interface);
- if (!iface) {
+ if (iface == NULL) {
error("dbus_connection_emit_signal: %s does not implement %s",
path, interface);
return FALSE;
}
for (signal = iface->signals; signal && signal->name; signal++) {
- if (!strcmp(signal->name, name)) {
- *args = signal->signature;
- break;
- }
- }
-
- if (!*args) {
- error("No signal named %s on interface %s", name, interface);
- return FALSE;
- }
-
- return TRUE;
-}
-
-static dbus_bool_t emit_signal_valist(DBusConnection *conn,
- const char *path,
- const char *interface,
- const char *name,
- int first,
- va_list var_args)
-{
- DBusMessage *signal;
- dbus_bool_t ret;
- const char *signature, *args;
-
- if (!check_signal(conn, path, interface, name, &args))
- return FALSE;
-
- signal = dbus_message_new_signal(path, interface, name);
- if (!signal) {
- error("Unable to allocate new %s.%s signal", interface, name);
- return FALSE;
- }
+ if (strcmp(signal->name, name) != 0)
+ continue;
- ret = dbus_message_append_args_valist(signal, first, var_args);
- if (!ret)
- goto fail;
+ if (signal->flags & G_DBUS_SIGNAL_FLAG_EXPERIMENTAL) {
+ const char *env = g_getenv("GDBUS_EXPERIMENTAL");
+ if (g_strcmp0(env, "1") != 0)
+ break;
+ }
- signature = dbus_message_get_signature(signal);
- if (strcmp(args, signature) != 0) {
- error("%s.%s: expected signature'%s' but got '%s'",
- interface, name, args, signature);
- ret = FALSE;
- goto fail;
+ *args = signal->args;
+ return TRUE;
}
- ret = dbus_connection_send(conn, signal, NULL);
-
-fail:
- dbus_message_unref(signal);
-
- return ret;
+ error("No signal named %s on interface %s", name, interface);
+ return FALSE;
}
gboolean g_dbus_register_interface(DBusConnection *connection,
const char *path, const char *name,
- GDBusMethodTable *methods,
- GDBusSignalTable *signals,
- GDBusPropertyTable *properties,
+ const GDBusMethodTable *methods,
+ const GDBusSignalTable *signals,
+ const GDBusPropertyTable *properties,
void *user_data,
GDBusDestroyFunction destroy)
{
if (data == NULL)
return FALSE;
- if (find_interface(data->interfaces, name))
+ if (find_interface(data->interfaces, name)) {
+ object_path_unref(connection, path);
+ return FALSE;
+ }
+
+ if (!add_interface(data, name, methods, signals, properties, user_data,
+ destroy)) {
+ object_path_unref(connection, path);
return FALSE;
+ }
- add_interface(data, name, methods, signals,
- properties, user_data, destroy);
+ if (properties != NULL && !find_interface(data->interfaces,
+ DBUS_INTERFACE_PROPERTIES))
+ add_interface(data, DBUS_INTERFACE_PROPERTIES,
+ properties_methods, properties_signals, NULL,
+ data, NULL);
g_free(data->introspect);
data->introspect = NULL;
{
struct generic_data *data = NULL;
- if (!path)
+ if (path == NULL)
return FALSE;
if (dbus_connection_get_object_path_data(connection, path,
g_free(data->introspect);
data->introspect = NULL;
- object_path_unref(connection, path);
+ object_path_unref(connection, data->path);
+
+ return TRUE;
+}
+
+gboolean g_dbus_register_security(const GDBusSecurityTable *security)
+{
+ if (security_table != NULL)
+ return FALSE;
+
+ security_table = security;
+
+ return TRUE;
+}
+
+gboolean g_dbus_unregister_security(const GDBusSecurityTable *security)
+{
+ security_table = NULL;
return TRUE;
}
{
char str[1024];
- vsnprintf(str, sizeof(str), format, args);
+ if (format)
+ vsnprintf(str, sizeof(str), format, args);
+ else
+ str[0] = '\0';
return dbus_message_new_error(message, name, str);
}
return reply;
}
+static void g_dbus_flush(DBusConnection *connection)
+{
+ GSList *l;
+
+ for (l = pending; l;) {
+ struct generic_data *data = l->data;
+
+ l = l->next;
+ if (data->conn != connection)
+ continue;
+
+ process_changes(data);
+ }
+}
+
gboolean g_dbus_send_message(DBusConnection *connection, DBusMessage *message)
{
- dbus_bool_t result;
+ dbus_bool_t result = FALSE;
if (dbus_message_get_type(message) == DBUS_MESSAGE_TYPE_METHOD_CALL)
dbus_message_set_no_reply(message, TRUE);
+ else if (dbus_message_get_type(message) == DBUS_MESSAGE_TYPE_SIGNAL) {
+ const char *path = dbus_message_get_path(message);
+ const char *interface = dbus_message_get_interface(message);
+ const char *name = dbus_message_get_member(message);
+ const GDBusArgInfo *args;
+
+ if (!check_signal(connection, path, interface, name, &args))
+ goto out;
+ }
+
+ /* Flush pending signal to guarantee message order */
+ g_dbus_flush(connection);
result = dbus_connection_send(connection, message, NULL);
+out:
dbus_message_unref(message);
return result;
}
+gboolean g_dbus_send_message_with_reply(DBusConnection *connection,
+ DBusMessage *message,
+ DBusPendingCall **call, int timeout)
+{
+ dbus_bool_t ret;
+
+ /* Flush pending signal to guarantee message order */
+ g_dbus_flush(connection);
+
+ ret = dbus_connection_send_with_reply(connection, message, call,
+ timeout);
+
+ if (ret == TRUE && call != NULL && *call == NULL) {
+ error("Unable to send message (passing fd blocked?)");
+ return FALSE;
+ }
+
+ return ret;
+}
+
+gboolean g_dbus_send_error_valist(DBusConnection *connection,
+ DBusMessage *message, const char *name,
+ const char *format, va_list args)
+{
+ DBusMessage *error;
+
+ error = g_dbus_create_error_valist(message, name, format, args);
+ if (error == NULL)
+ return FALSE;
+
+ return g_dbus_send_message(connection, error);
+}
+
+gboolean g_dbus_send_error(DBusConnection *connection, DBusMessage *message,
+ const char *name, const char *format, ...)
+{
+ va_list args;
+ gboolean result;
+
+ va_start(args, format);
+
+ result = g_dbus_send_error_valist(connection, message, name,
+ format, args);
+
+ va_end(args);
+
+ return result;
+}
+
gboolean g_dbus_send_reply_valist(DBusConnection *connection,
DBusMessage *message, int type, va_list args)
{
va_start(args, type);
- result = emit_signal_valist(connection, path, interface,
+ result = g_dbus_emit_signal_valist(connection, path, interface,
name, type, args);
va_end(args);
const char *path, const char *interface,
const char *name, int type, va_list args)
{
- return emit_signal_valist(connection, path, interface,
- name, type, args);
+ DBusMessage *signal;
+ dbus_bool_t ret;
+ const GDBusArgInfo *args_info;
+
+ if (!check_signal(connection, path, interface, name, &args_info))
+ return FALSE;
+
+ signal = dbus_message_new_signal(path, interface, name);
+ if (signal == NULL) {
+ error("Unable to allocate new %s.%s signal", interface, name);
+ return FALSE;
+ }
+
+ ret = dbus_message_append_args_valist(signal, type, args);
+ if (!ret)
+ goto fail;
+
+ if (g_dbus_args_have_signature(args_info, signal) == FALSE) {
+ error("%s.%s: got unexpected signature '%s'", interface, name,
+ dbus_message_get_signature(signal));
+ ret = FALSE;
+ goto fail;
+ }
+
+ return g_dbus_send_message(connection, signal);
+
+fail:
+ dbus_message_unref(signal);
+
+ return ret;
+}
+
+static void process_properties_from_interface(struct generic_data *data,
+ struct interface_data *iface)
+{
+ GSList *l;
+ DBusMessage *signal;
+ DBusMessageIter iter, dict, array;
+ GSList *invalidated;
+
+ data->pending_prop = FALSE;
+
+ if (iface->pending_prop == NULL)
+ return;
+
+ signal = dbus_message_new_signal(data->path,
+ DBUS_INTERFACE_PROPERTIES, "PropertiesChanged");
+ if (signal == NULL) {
+ error("Unable to allocate new " DBUS_INTERFACE_PROPERTIES
+ ".PropertiesChanged signal");
+ return;
+ }
+
+ iface->pending_prop = g_slist_reverse(iface->pending_prop);
+
+ dbus_message_iter_init_append(signal, &iter);
+ dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &iface->name);
+ dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
+ DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
+ DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
+ DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
+
+ invalidated = NULL;
+
+ for (l = iface->pending_prop; l != NULL; l = l->next) {
+ GDBusPropertyTable *p = l->data;
+
+ if (p->get == NULL)
+ continue;
+
+ if (p->exists != NULL && !p->exists(p, iface->user_data)) {
+ invalidated = g_slist_prepend(invalidated, p);
+ continue;
+ }
+
+ append_property(iface, p, &dict);
+ }
+
+ dbus_message_iter_close_container(&iter, &dict);
+
+ dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
+ DBUS_TYPE_STRING_AS_STRING, &array);
+ for (l = invalidated; l != NULL; l = g_slist_next(l)) {
+ GDBusPropertyTable *p = l->data;
+
+ dbus_message_iter_append_basic(&array, DBUS_TYPE_STRING,
+ &p->name);
+ }
+ g_slist_free(invalidated);
+ dbus_message_iter_close_container(&iter, &array);
+
+ g_slist_free(iface->pending_prop);
+ iface->pending_prop = NULL;
+
+ /* Use dbus_connection_send to avoid recursive calls to g_dbus_flush */
+ dbus_connection_send(data->conn, signal, NULL);
+ dbus_message_unref(signal);
+}
+
+static void process_property_changes(struct generic_data *data)
+{
+ GSList *l;
+
+ for (l = data->interfaces; l != NULL; l = l->next) {
+ struct interface_data *iface = l->data;
+
+ process_properties_from_interface(data, iface);
+ }
+}
+
+void g_dbus_emit_property_changed_full(DBusConnection *connection,
+ const char *path, const char *interface,
+ const char *name,
+ GDbusPropertyChangedFlags flags)
+{
+ const GDBusPropertyTable *property;
+ struct generic_data *data;
+ struct interface_data *iface;
+
+ if (path == NULL)
+ return;
+
+ if (!dbus_connection_get_object_path_data(connection, path,
+ (void **) &data) || data == NULL)
+ return;
+
+ iface = find_interface(data->interfaces, interface);
+ if (iface == NULL)
+ return;
+
+ /*
+ * If ObjectManager is attached, don't emit property changed if
+ * interface is not yet published
+ */
+ if (root && g_slist_find(data->added, iface))
+ return;
+
+ property = find_property(iface->properties, name);
+ if (property == NULL) {
+ error("Could not find property %s in %p", name,
+ iface->properties);
+ return;
+ }
+
+ if (g_slist_find(iface->pending_prop, (void *) property) != NULL)
+ return;
+
+ data->pending_prop = TRUE;
+ iface->pending_prop = g_slist_prepend(iface->pending_prop,
+ (void *) property);
+
+ if (flags & G_DBUS_PROPERTY_CHANGED_FLAG_FLUSH)
+ process_property_changes(data);
+ else
+ add_pending(data);
+}
+
+void g_dbus_emit_property_changed(DBusConnection *connection, const char *path,
+ const char *interface, const char *name)
+{
+ g_dbus_emit_property_changed_full(connection, path, interface, name, 0);
+}
+
+gboolean g_dbus_get_properties(DBusConnection *connection, const char *path,
+ const char *interface, DBusMessageIter *iter)
+{
+ struct generic_data *data;
+ struct interface_data *iface;
+
+ if (path == NULL)
+ return FALSE;
+
+ if (!dbus_connection_get_object_path_data(connection, path,
+ (void **) &data) || data == NULL)
+ return FALSE;
+
+ iface = find_interface(data->interfaces, interface);
+ if (iface == NULL)
+ return FALSE;
+
+ append_properties(iface, iter);
+
+ return TRUE;
+}
+
+gboolean g_dbus_attach_object_manager(DBusConnection *connection)
+{
+ struct generic_data *data;
+
+ data = object_path_ref(connection, "/");
+ if (data == NULL)
+ return FALSE;
+
+ add_interface(data, DBUS_INTERFACE_OBJECT_MANAGER,
+ manager_methods, manager_signals,
+ NULL, data, NULL);
+ root = data;
+
+ return TRUE;
+}
+
+gboolean g_dbus_detach_object_manager(DBusConnection *connection)
+{
+ if (!g_dbus_unregister_interface(connection, "/",
+ DBUS_INTERFACE_OBJECT_MANAGER))
+ return FALSE;
+
+ root = NULL;
+
+ return TRUE;
+}
+
+void g_dbus_set_flags(int flags)
+{
+ global_flags = flags;
+}
+
+int g_dbus_get_flags(void)
+{
+ return global_flags;
}
projects / platform / upstream / connman.git / blobdiff