Jędrzej Stuczyński
47 lines
1.2 KiB
Rust
47 lines
1.2 KiB
Rust
// Copyright 2021-2022 - Nym Technologies SA <contact@nymtech.net>
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// SPDX-License-Identifier: Apache-2.0
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use std::convert::TryFrom;
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use thiserror::Error;
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#[derive(Error, Debug)]
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#[error("{received} is not a valid packet mode tag")]
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pub struct InvalidPacketMode {
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received: u8,
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}
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#[repr(u8)]
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#[derive(Clone, Copy, Debug, PartialEq, Eq, Default)]
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pub enum PacketMode {
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/// Represents 'normal' packet sent through the network that should be delayed by an appropriate
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/// value at each hop.
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#[default]
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Mix = 0,
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/// Represents a VPN packet that should not be delayed and ideally cached pre-computed keys
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/// should be used for unwrapping data. Note that it does not offer the same level of anonymity.
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Vpn = 1,
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}
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impl PacketMode {
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pub fn is_mix(self) -> bool {
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self == PacketMode::Mix
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}
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pub fn is_old_vpn(self) -> bool {
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self == PacketMode::Vpn
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}
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}
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impl TryFrom<u8> for PacketMode {
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type Error = InvalidPacketMode;
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fn try_from(value: u8) -> Result<Self, Self::Error> {
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match value {
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_ if value == (PacketMode::Mix as u8) => Ok(Self::Mix),
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_ if value == (PacketMode::Vpn as u8) => Ok(Self::Vpn),
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v => Err(InvalidPacketMode { received: v }),
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}
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}
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}
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