37 lines
1.2 KiB
Rust
37 lines
1.2 KiB
Rust
// Copyright 2015-2020 Parity Technologies (UK) Ltd.
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// This file is part of OpenEthereum.
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// OpenEthereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// OpenEthereum is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with OpenEthereum. If not, see <http://www.gnu.org/licenses/>.
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//! Connection filter trait.
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use super::NodeId;
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/// Filtered connection direction.
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pub enum ConnectionDirection {
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Inbound,
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Outbound,
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}
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/// Connection filter. Each connection is checked against `connection_allowed`.
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pub trait ConnectionFilter: Send + Sync {
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/// Filter a connection. Returns `true` if connection should be allowed. `false` if rejected.
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fn connection_allowed(
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&self,
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own_id: &NodeId,
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connecting_id: &NodeId,
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direction: ConnectionDirection,
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) -> bool;
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}
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