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|
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/*
* libnm_glib -- Access network status & information from glib applications
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA.
*
* Copyright (C) 2008 Novell, Inc.
* Copyright (C) 2009 - 2010 Red Hat, Inc.
*/
#include <string.h>
#include <NetworkManager.h>
#include <nm-connection.h>
#include "nm-marshal.h"
#include "nm-remote-settings.h"
#include "nm-settings-bindings.h"
#include "nm-settings-interface.h"
#include "nm-remote-connection-private.h"
static void settings_interface_init (NMSettingsInterface *class);
G_DEFINE_TYPE_EXTENDED (NMRemoteSettings, nm_remote_settings, G_TYPE_OBJECT, 0,
G_IMPLEMENT_INTERFACE (NM_TYPE_SETTINGS_INTERFACE, settings_interface_init))
#define NM_REMOTE_SETTINGS_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NM_TYPE_REMOTE_SETTINGS, NMRemoteSettingsPrivate))
typedef struct {
DBusGConnection *bus;
NMConnectionScope scope;
DBusGProxy *proxy;
GHashTable *connections;
GHashTable *pending; /* Connections we don't have settings for yet */
gboolean service_running;
DBusGProxy *dbus_proxy;
guint fetch_id;
gboolean disposed;
} NMRemoteSettingsPrivate;
enum {
PROP_0,
PROP_BUS,
PROP_SCOPE,
PROP_SERVICE_RUNNING,
LAST_PROP
};
static NMSettingsConnectionInterface *
get_connection_by_path (NMSettingsInterface *settings, const char *path)
{
return g_hash_table_lookup (NM_REMOTE_SETTINGS_GET_PRIVATE (settings)->connections, path);
}
static void
connection_removed_cb (NMRemoteConnection *remote, gpointer user_data)
{
NMRemoteSettings *self = NM_REMOTE_SETTINGS (user_data);
NMRemoteSettingsPrivate *priv = NM_REMOTE_SETTINGS_GET_PRIVATE (self);
const char *path;
path = nm_connection_get_path (NM_CONNECTION (remote));
g_hash_table_remove (priv->connections, path);
g_hash_table_remove (priv->pending, path);
}
static void
connection_init_result_cb (NMRemoteConnection *remote,
GParamSpec *pspec,
gpointer user_data)
{
NMRemoteSettings *self = NM_REMOTE_SETTINGS (user_data);
NMRemoteSettingsPrivate *priv = NM_REMOTE_SETTINGS_GET_PRIVATE (self);
guint32 init_result = NM_REMOTE_CONNECTION_INIT_RESULT_UNKNOWN;
const char *path;
/* Disconnect from the init-result signal just to be safe */
g_signal_handlers_disconnect_matched (remote,
G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA,
0,
0,
NULL,
G_CALLBACK (connection_init_result_cb),
self);
path = nm_connection_get_path (NM_CONNECTION (remote));
g_object_get (G_OBJECT (remote),
NM_REMOTE_CONNECTION_INIT_RESULT, &init_result,
NULL);
switch (init_result) {
case NM_REMOTE_CONNECTION_INIT_RESULT_SUCCESS:
/* ref it when adding to ->connections, since removing it from ->pending
* will unref it.
*/
g_hash_table_insert (priv->connections, g_strdup (path), g_object_ref (remote));
/* Finally, let users know of the new connection now that it has all
* its settings and is valid.
*/
g_signal_emit_by_name (self, "new-connection", remote);
break;
case NM_REMOTE_CONNECTION_INIT_RESULT_ERROR:
default:
break;
}
g_hash_table_remove (priv->pending, path);
/* Let listeners know that all connections have been found */
if (!g_hash_table_size (priv->pending))
g_signal_emit_by_name (self, NM_SETTINGS_INTERFACE_CONNECTIONS_READ);
}
static void
new_connection_cb (DBusGProxy *proxy, const char *path, gpointer user_data)
{
NMRemoteSettings *self = NM_REMOTE_SETTINGS (user_data);
NMRemoteSettingsPrivate *priv = NM_REMOTE_SETTINGS_GET_PRIVATE (self);
NMRemoteConnection *connection;
connection = nm_remote_connection_new (priv->bus, priv->scope, path);
if (connection) {
g_signal_connect (connection, "removed",
G_CALLBACK (connection_removed_cb),
self);
g_signal_connect (connection, "notify::" NM_REMOTE_CONNECTION_INIT_RESULT,
G_CALLBACK (connection_init_result_cb),
self);
/* Add the connection to the pending table to wait for it to retrieve
* it's settings asynchronously over D-Bus. The connection isn't
* really valid until it has all its settings, so hide it until it does.
*/
g_hash_table_insert (priv->pending, g_strdup (path), connection);
}
}
static void
fetch_connections_done (DBusGProxy *proxy,
GPtrArray *connections,
GError *error,
gpointer user_data)
{
NMRemoteSettings *self = NM_REMOTE_SETTINGS (user_data);
NMRemoteSettingsPrivate *priv = NM_REMOTE_SETTINGS_GET_PRIVATE (self);
int i;
if (error) {
g_warning ("%s: error fetching %s connections: (%d) %s.",
__func__,
priv->scope == NM_CONNECTION_SCOPE_USER ? "user" : "system",
error->code,
error->message ? error->message : "(unknown)");
g_clear_error (&error);
return;
}
/* Let listeners know we are done getting connections */
if (connections->len == 0) {
g_signal_emit_by_name (self, NM_SETTINGS_INTERFACE_CONNECTIONS_READ);
return;
}
for (i = 0; connections && (i < connections->len); i++) {
char *path = g_ptr_array_index (connections, i);
new_connection_cb (proxy, path, user_data);
g_free (path);
}
g_ptr_array_free (connections, TRUE);
}
static gboolean
fetch_connections (gpointer user_data)
{
NMRemoteSettings *self = NM_REMOTE_SETTINGS (user_data);
NMRemoteSettingsPrivate *priv = NM_REMOTE_SETTINGS_GET_PRIVATE (self);
priv->fetch_id = 0;
org_freedesktop_NetworkManagerSettings_list_connections_async (priv->proxy,
fetch_connections_done,
self);
return FALSE;
}
static GSList *
list_connections (NMSettingsInterface *settings)
{
NMRemoteSettingsPrivate *priv = NM_REMOTE_SETTINGS_GET_PRIVATE (settings);
GSList *list = NULL;
GHashTableIter iter;
gpointer value;
g_hash_table_iter_init (&iter, priv->connections);
while (g_hash_table_iter_next (&iter, NULL, &value))
list = g_slist_prepend (list, NM_REMOTE_CONNECTION (value));
return list;
}
typedef struct {
NMSettingsInterface *self;
NMSettingsAddConnectionFunc callback;
gpointer callback_data;
} AddConnectionInfo;
static void
add_connection_done (DBusGProxy *proxy,
GError *error,
gpointer user_data)
{
AddConnectionInfo *info = user_data;
info->callback (info->self, error, info->callback_data);
g_free (info);
}
static gboolean
add_connection (NMSettingsInterface *settings,
NMConnection *connection,
NMSettingsAddConnectionFunc callback,
gpointer user_data)
{
NMRemoteSettings *self = NM_REMOTE_SETTINGS (settings);
NMRemoteSettingsPrivate *priv = NM_REMOTE_SETTINGS_GET_PRIVATE (self);
AddConnectionInfo *info;
GHashTable *new_settings;
info = g_malloc0 (sizeof (AddConnectionInfo));
info->self = settings;
info->callback = callback;
info->callback_data = user_data;
new_settings = nm_connection_to_hash (connection);
org_freedesktop_NetworkManagerSettings_add_connection_async (priv->proxy,
new_settings,
add_connection_done,
info);
g_hash_table_destroy (new_settings);
return TRUE;
}
static gboolean
remove_connections (gpointer user_data)
{
NMRemoteSettings *self = NM_REMOTE_SETTINGS (user_data);
NMRemoteSettingsPrivate *priv = NM_REMOTE_SETTINGS_GET_PRIVATE (self);
GHashTableIter iter;
gpointer value;
GSList *list = NULL, *list_iter;
/* Build up the list of connections; we can't emit "removed" during hash
* table iteration because emission of the "removed" signal may trigger code
* that explicitly removes the the connection from the hash table somewhere
* else.
*/
g_hash_table_iter_init (&iter, priv->connections);
while (g_hash_table_iter_next (&iter, NULL, &value))
list = g_slist_prepend (list, NM_REMOTE_CONNECTION (value));
for (list_iter = list; list_iter; list_iter = g_slist_next (list_iter))
g_signal_emit_by_name (NM_REMOTE_CONNECTION (list_iter->data), "removed");
g_slist_free (list);
g_hash_table_remove_all (priv->connections);
return FALSE;
}
static void
name_owner_changed (DBusGProxy *proxy,
const char *name,
const char *old_owner,
const char *new_owner,
gpointer user_data)
{
NMRemoteSettings *self = NM_REMOTE_SETTINGS (user_data);
NMRemoteSettingsPrivate *priv = NM_REMOTE_SETTINGS_GET_PRIVATE (self);
const char *sname = NM_DBUS_SERVICE_USER_SETTINGS;
if (priv->scope == NM_CONNECTION_SCOPE_SYSTEM)
sname = NM_DBUS_SERVICE_SYSTEM_SETTINGS;
if (!strcmp (name, sname)) {
if (priv->fetch_id)
g_source_remove (priv->fetch_id);
if (new_owner && strlen (new_owner) > 0) {
priv->fetch_id = g_idle_add (fetch_connections, self);
priv->service_running = TRUE;
} else {
priv->fetch_id = g_idle_add (remove_connections, self);
priv->service_running = FALSE;
}
g_object_notify (G_OBJECT (self), NM_REMOTE_SETTINGS_SERVICE_RUNNING);
}
}
/****************************************************************/
static void
settings_interface_init (NMSettingsInterface *iface)
{
/* interface implementation */
iface->list_connections = list_connections;
iface->get_connection_by_path = get_connection_by_path;
iface->add_connection = add_connection;
}
/**
* nm_remote_settings_new:
* @bus: a valid and connected D-Bus connection
* @scope: the settings service scope (either user or system)
*
* Creates a new object representing the remote settings service.
*
* Returns: the new remote settings object on success, or %NULL on failure
**/
NMRemoteSettings *
nm_remote_settings_new (DBusGConnection *bus, NMConnectionScope scope)
{
g_return_val_if_fail (bus != NULL, NULL);
g_return_val_if_fail (scope != NM_CONNECTION_SCOPE_UNKNOWN, NULL);
return (NMRemoteSettings *) g_object_new (NM_TYPE_REMOTE_SETTINGS,
NM_REMOTE_SETTINGS_BUS, bus,
NM_REMOTE_SETTINGS_SCOPE, scope,
NULL);
}
static void
nm_remote_settings_init (NMRemoteSettings *self)
{
NMRemoteSettingsPrivate *priv = NM_REMOTE_SETTINGS_GET_PRIVATE (self);
priv->connections = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_object_unref);
priv->pending = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_object_unref);
}
static GObject *
constructor (GType type,
guint n_construct_params,
GObjectConstructParam *construct_params)
{
GObject *object;
NMRemoteSettingsPrivate *priv;
const char *service = NM_DBUS_SERVICE_USER_SETTINGS;
GError *error = NULL;
object = G_OBJECT_CLASS (nm_remote_settings_parent_class)->constructor (type, n_construct_params, construct_params);
if (!object)
return NULL;
priv = NM_REMOTE_SETTINGS_GET_PRIVATE (object);
/* D-Bus proxy for clearing connections on NameOwnerChanged */
priv->dbus_proxy = dbus_g_proxy_new_for_name (priv->bus,
"org.freedesktop.DBus",
"/org/freedesktop/DBus",
"org.freedesktop.DBus");
g_assert (priv->dbus_proxy);
dbus_g_object_register_marshaller (_nm_marshal_VOID__STRING_STRING_STRING,
G_TYPE_NONE,
G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING,
G_TYPE_INVALID);
dbus_g_proxy_add_signal (priv->dbus_proxy, "NameOwnerChanged",
G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING,
G_TYPE_INVALID);
dbus_g_proxy_connect_signal (priv->dbus_proxy,
"NameOwnerChanged",
G_CALLBACK (name_owner_changed),
object, NULL);
/* Settings service proxy */
if (priv->scope == NM_CONNECTION_SCOPE_SYSTEM)
service = NM_DBUS_SERVICE_SYSTEM_SETTINGS;
if (!dbus_g_proxy_call (priv->dbus_proxy, "NameHasOwner", &error,
G_TYPE_STRING, service,
G_TYPE_INVALID,
G_TYPE_BOOLEAN, &priv->service_running,
G_TYPE_INVALID)) {
g_warning ("%s (NMRemoteSettings) error getting remote settings service status: (%d) %s\n",
__func__,
error ? error->code : -1,
error && error->message ? error->message : "(unknown)");
g_error_free (error);
priv->service_running = FALSE;
}
priv->proxy = dbus_g_proxy_new_for_name (priv->bus,
service,
NM_DBUS_PATH_SETTINGS,
NM_DBUS_IFACE_SETTINGS);
g_assert (priv->proxy);
dbus_g_proxy_set_default_timeout (priv->proxy, G_MAXINT);
dbus_g_proxy_add_signal (priv->proxy, "NewConnection",
DBUS_TYPE_G_OBJECT_PATH,
G_TYPE_INVALID);
dbus_g_proxy_connect_signal (priv->proxy, "NewConnection",
G_CALLBACK (new_connection_cb),
object,
NULL);
priv->fetch_id = g_idle_add (fetch_connections, object);
return object;
}
static void
dispose (GObject *object)
{
NMRemoteSettingsPrivate *priv = NM_REMOTE_SETTINGS_GET_PRIVATE (object);
if (priv->disposed)
return;
priv->disposed = TRUE;
if (priv->fetch_id)
g_source_remove (priv->fetch_id);
if (priv->connections)
g_hash_table_destroy (priv->connections);
if (priv->pending)
g_hash_table_destroy (priv->pending);
g_object_unref (priv->dbus_proxy);
g_object_unref (priv->proxy);
dbus_g_connection_unref (priv->bus);
G_OBJECT_CLASS (nm_remote_settings_parent_class)->dispose (object);
}
static void
set_property (GObject *object, guint prop_id,
const GValue *value, GParamSpec *pspec)
{
NMRemoteSettingsPrivate *priv = NM_REMOTE_SETTINGS_GET_PRIVATE (object);
switch (prop_id) {
case PROP_BUS:
/* Construct only */
priv->bus = dbus_g_connection_ref ((DBusGConnection *) g_value_get_boxed (value));
break;
case PROP_SCOPE:
priv->scope = (NMConnectionScope) g_value_get_uint (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
get_property (GObject *object, guint prop_id,
GValue *value, GParamSpec *pspec)
{
NMRemoteSettingsPrivate *priv = NM_REMOTE_SETTINGS_GET_PRIVATE (object);
switch (prop_id) {
case PROP_BUS:
g_value_set_boxed (value, priv->bus);
break;
case PROP_SCOPE:
g_value_set_uint (value, priv->scope);
break;
case PROP_SERVICE_RUNNING:
g_value_set_boolean (value, priv->service_running);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
nm_remote_settings_class_init (NMRemoteSettingsClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
g_type_class_add_private (class, sizeof (NMRemoteSettingsPrivate));
/* Virtual methods */
object_class->constructor = constructor;
object_class->set_property = set_property;
object_class->get_property = get_property;
object_class->dispose = dispose;
/* Properties */
g_object_class_install_property
(object_class, PROP_BUS,
g_param_spec_boxed (NM_REMOTE_SETTINGS_BUS,
"DBusGConnection",
"DBusGConnection",
DBUS_TYPE_G_CONNECTION,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property
(object_class, PROP_SCOPE,
g_param_spec_uint (NM_REMOTE_SETTINGS_SCOPE,
"Scope",
"NMConnection scope",
NM_CONNECTION_SCOPE_UNKNOWN,
NM_CONNECTION_SCOPE_USER,
NM_CONNECTION_SCOPE_USER,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property
(object_class, PROP_SERVICE_RUNNING,
g_param_spec_boolean (NM_REMOTE_SETTINGS_SERVICE_RUNNING,
"Service running",
"Is service running",
FALSE,
G_PARAM_READABLE));
}
|