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// Copyright 2015-2020 Parity Technologies (UK) Ltd. // This file is part of Tetsy Vapory. // Tetsy Vapory is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // Tetsy Vapory 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 General Public License for more details. // You should have received a copy of the GNU General Public License // along with Tetsy Vapory. If not, see <http://www.gnu.org/licenses/>. //! Connection filter trait. use super::NodeId; /// Filtered connection direction. pub enum ConnectionDirection { Inbound, Outbound, } /// Connection filter. Each connection is checked against `connection_allowed`. pub trait ConnectionFilter : Send + Sync { /// Filter a connection. Returns `true` if connection should be allowed. `false` if rejected. fn connection_allowed(&self, own_id: &NodeId, connecting_id: &NodeId, direction: ConnectionDirection) -> bool; }