static NMSettingsConnection *
_internal_new_connection (SCPluginKeyfile *self,
const char *full_path,
NMConnection *source,
GError **error)
{
SCPluginKeyfilePrivate *priv = SC_PLUGIN_KEYFILE_GET_PRIVATE (self);
NMKeyfileConnection *connection;
g_return_val_if_fail (full_path != NULL, NULL);
connection = nm_keyfile_connection_new (full_path, source, error);
if (connection) {
g_hash_table_insert (priv->hash,
(gpointer) nm_keyfile_connection_get_path (connection),
connection);
}
return (NMSettingsConnection *) connection;
}
/* update_connection:
* @self: the plugin instance
* @source: if %NULL, this re-reads the connection from @full_path
* and updates it. When passing @source, this adds a connection from
* memory.
* @full_path: the filename of the keyfile to be loaded
* @connection: an existing connection that might be updated.
* If given, @connection must be an existing connection that is currently
* owned by the plugin.
* @protect_existing_connection: if %TRUE, and !@connection, we don't allow updating
* an existing connection with the same UUID.
* If %TRUE and @connection, allow updating only if the reload would modify
* @connection (without changing its UUID) or if we would create a new connection.
* In other words, if this paramter is %TRUE, we only allow creating a
* new connection (with an unseen UUID) or updating the passed in @connection
* (whereas the UUID cannot change).
* Note, that this allows for @connection to be replaced by a new connection.
* @protected_connections: (allow-none): if given, we only update an
* existing connection if it is not contained in this hash.
* @error: error in case of failure
*
* Loads a connection from file @full_path. This can both be used to
* load a connection initially or to update an existing connection.
*
* If you pass in an existing connection and the reloaded file happens
* to have a different UUID, the connection is deleted.
* Beware, that means that after the function, you have a dangling pointer
* if the returned connection is different from @connection.
*
* Returns: the updated connection.
* */
static NMKeyfileConnection *
update_connection (SCPluginKeyfile *self,
NMConnection *source,
const char *full_path,
NMKeyfileConnection *connection,
gboolean protect_existing_connection,
GHashTable *protected_connections,
GError **error)
{
SCPluginKeyfilePrivate *priv = SC_PLUGIN_KEYFILE_GET_PRIVATE (self);
NMKeyfileConnection *connection_new;
NMKeyfileConnection *connection_by_uuid;
GError *local = NULL;
const char *uuid;
g_return_val_if_fail (!source || NM_IS_CONNECTION (source), NULL);
g_return_val_if_fail (full_path || source, NULL);
if (full_path)
nm_log_dbg (LOGD_SETTINGS, "keyfile: loading from file \"%s\"...", full_path);
connection_new = nm_keyfile_connection_new (source, full_path, &local);
if (!connection_new) {
/* Error; remove the connection */
if (source)
nm_log_warn (LOGD_SETTINGS, "keyfile: error creating connection %s: %s", nm_connection_get_uuid (source), local->message);
else
nm_log_warn (LOGD_SETTINGS, "keyfile: error loading connection from file %s: %s", full_path, local->message);
if ( connection
&& !protect_existing_connection
&& (!protected_connections || !g_hash_table_contains (protected_connections, connection)))
remove_connection (self, connection);
g_propagate_error (error, local);
return NULL;
}
uuid = nm_connection_get_uuid (NM_CONNECTION (connection_new));
connection_by_uuid = g_hash_table_lookup (priv->connections, uuid);
if ( connection
&& connection != connection_by_uuid) {
if ( (protect_existing_connection && connection_by_uuid != NULL)
|| (protected_connections && g_hash_table_contains (protected_connections, connection))) {
NMKeyfileConnection *conflicting = (protect_existing_connection && connection_by_uuid != NULL) ? connection_by_uuid : connection;
if (source)
nm_log_warn (LOGD_SETTINGS, "keyfile: cannot update protected "NM_KEYFILE_CONNECTION_LOG_FMT" connection due to conflicting UUID %s", NM_KEYFILE_CONNECTION_LOG_ARG (conflicting), uuid);
else
nm_log_warn (LOGD_SETTINGS, "keyfile: cannot load %s due to conflicting UUID for "NM_KEYFILE_CONNECTION_LOG_FMT, full_path, NM_KEYFILE_CONNECTION_LOG_ARG (conflicting));
g_object_unref (connection_new);
g_set_error_literal (error, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_FAILED,
"Cannot update protected connection due to conflicting UUID");
return NULL;
}
/* The new connection has a different UUID then the original one.
* Remove @connection. */
remove_connection (self, connection);
}
if ( connection_by_uuid
&& ( (!connection && protect_existing_connection)
|| (protected_connections && g_hash_table_contains (protected_connections, connection_by_uuid)))) {
if (source)
nm_log_warn (LOGD_SETTINGS, "keyfile: cannot update connection due to conflicting UUID for "NM_KEYFILE_CONNECTION_LOG_FMT, NM_KEYFILE_CONNECTION_LOG_ARG (connection_by_uuid));
else
nm_log_warn (LOGD_SETTINGS, "keyfile: cannot load %s due to conflicting UUID for "NM_KEYFILE_CONNECTION_LOG_FMT, full_path, NM_KEYFILE_CONNECTION_LOG_ARG (connection_by_uuid));
g_object_unref (connection_new);
g_set_error_literal (error, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_FAILED,
"Skip updating protected connection during reload");
return NULL;
}
if (connection_by_uuid) {
const char *old_path;
old_path = nm_settings_connection_get_filename (NM_SETTINGS_CONNECTION (connection_by_uuid));
if (nm_connection_compare (NM_CONNECTION (connection_by_uuid),
NM_CONNECTION (connection_new),
NM_SETTING_COMPARE_FLAG_IGNORE_AGENT_OWNED_SECRETS |
NM_SETTING_COMPARE_FLAG_IGNORE_NOT_SAVED_SECRETS)) {
/* Nothing to do... except updating the path. */
if (old_path && g_strcmp0 (old_path, full_path) != 0)
nm_log_info (LOGD_SETTINGS, "keyfile: rename \"%s\" to "NM_KEYFILE_CONNECTION_LOG_FMT" without other changes", old_path, NM_KEYFILE_CONNECTION_LOG_ARG (connection_new));
} else {
/* An existing connection changed. */
if (source)
nm_log_info (LOGD_SETTINGS, "keyfile: update "NM_KEYFILE_CONNECTION_LOG_FMT" from %s", NM_KEYFILE_CONNECTION_LOG_ARG (connection_new), NM_KEYFILE_CONNECTION_LOG_PATH (old_path));
else if (!g_strcmp0 (old_path, nm_settings_connection_get_filename (NM_SETTINGS_CONNECTION (connection_new))))
nm_log_info (LOGD_SETTINGS, "keyfile: update "NM_KEYFILE_CONNECTION_LOG_FMT, NM_KEYFILE_CONNECTION_LOG_ARG (connection_new));
else if (old_path)
nm_log_info (LOGD_SETTINGS, "keyfile: rename \"%s\" to "NM_KEYFILE_CONNECTION_LOG_FMT, old_path, NM_KEYFILE_CONNECTION_LOG_ARG (connection_new));
else
nm_log_info (LOGD_SETTINGS, "keyfile: update and persist "NM_KEYFILE_CONNECTION_LOG_FMT, NM_KEYFILE_CONNECTION_LOG_ARG (connection_new));
if (!nm_settings_connection_replace_settings (NM_SETTINGS_CONNECTION (connection_by_uuid),
NM_CONNECTION (connection_new),
FALSE, /* don't set Unsaved */
"keyfile-update",
&local)) {
/* Shouldn't ever get here as 'connection_new' was verified by the reader already
* and the UUID did not change. */
g_assert_not_reached ();
}
g_assert_no_error (local);
}
nm_settings_connection_set_filename (NM_SETTINGS_CONNECTION (connection_by_uuid), full_path);
g_object_unref (connection_new);
return connection_by_uuid;
} else {
if (source)
nm_log_info (LOGD_SETTINGS, "keyfile: add connection "NM_KEYFILE_CONNECTION_LOG_FMT, NM_KEYFILE_CONNECTION_LOG_ARG (connection_new));
else
nm_log_info (LOGD_SETTINGS, "keyfile: new connection "NM_KEYFILE_CONNECTION_LOG_FMT, NM_KEYFILE_CONNECTION_LOG_ARG (connection_new));
g_hash_table_insert (priv->connections, g_strdup (uuid), connection_new);
g_signal_connect (connection_new, NM_SETTINGS_CONNECTION_REMOVED,
G_CALLBACK (connection_removed_cb),
self);
if (!source) {
/* Only raise the signal if we were called without source, i.e. if we read the connection from file.
* Otherwise, we were called by add_connection() which does not expect the signal. */
g_signal_emit_by_name (self, NM_SYSTEM_CONFIG_INTERFACE_CONNECTION_ADDED, connection_new);
}
return connection_new;
}
}
