Mark Sinclair
3096a2307f
* Change mixnode, gateway, network and nym-api binary licenses to GPLv3 * Add license to cargo files * Revert model license to match crate * Add license to nym-node * Revert model license to match crate * Fix formatting --------- Co-authored-by: Mark Sinclair <mmsinclair@users.noreply.github.com>
45 lines
1.5 KiB
Rust
45 lines
1.5 KiB
Rust
// Copyright 2020 - Nym Technologies SA <contact@nymtech.net>
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// SPDX-License-Identifier: GPL-3.0-only
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use nym_crypto::asymmetric::encryption;
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use nym_mixnode_common::packet_processor::error::MixProcessingError;
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pub use nym_mixnode_common::packet_processor::processor::MixProcessingResult;
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use nym_mixnode_common::packet_processor::processor::{ProcessedFinalHop, SphinxPacketProcessor};
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use nym_sphinx::framing::packet::FramedNymPacket;
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use thiserror::Error;
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#[derive(Error, Debug)]
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pub enum GatewayProcessingError {
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#[error("failed to process received mix packet - {0}")]
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PacketProcessingError(#[from] MixProcessingError),
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#[error("received a forward hop mix packet")]
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ForwardHopReceivedError,
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}
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// PacketProcessor contains all data required to correctly unwrap and store sphinx packets
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#[derive(Clone)]
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pub struct PacketProcessor {
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inner_processor: SphinxPacketProcessor,
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}
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impl PacketProcessor {
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pub(crate) fn new(encryption_key: &encryption::PrivateKey) -> Self {
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PacketProcessor {
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inner_processor: SphinxPacketProcessor::new(encryption_key.into()),
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}
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}
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pub(crate) fn process_received(
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&self,
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received: FramedNymPacket,
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) -> Result<ProcessedFinalHop, GatewayProcessingError> {
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match self.inner_processor.process_received(received)? {
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MixProcessingResult::ForwardHop(..) => {
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Err(GatewayProcessingError::ForwardHopReceivedError)
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}
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MixProcessingResult::FinalHop(processed_final) => Ok(processed_final),
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}
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}
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}
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