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/// The type that tracks the reputation score.
pub type Reputation = i32;
/// Various kinds of reputation changes.
#[derive(Debug, Copy, Clone, PartialEq, Eq)]
pub enum ReputationChangeKind {
/// Received an unspecific bad message from the peer
BadMessage,
/// Peer sent a bad block.
///
/// Note: this will we only used in pre-merge, pow consensus, since after no more block announcements are sent via devp2p: [EIP-3675](https://eips.ethereum.org/EIPS/eip-3675#devp2p)
BadBlock,
/// Peer sent a bad transaction message. E.g. Transactions which weren't recoverable.
BadTransactions,
/// Peer sent a bad announcement message, e.g. invalid transaction type for the configured
/// network.
BadAnnouncement,
/// Peer sent a message that included a hash or transaction that we already received from the
/// peer.
///
/// According to the [Eth spec](https://github.com/ethereum/devp2p/blob/master/caps/eth.md):
///
/// > A node should never send a transaction back to a peer that it can determine already knows
/// > of it (either because it was previously sent or because it was informed from this peer
/// > originally). This is usually achieved by remembering a set of transaction hashes recently
/// > relayed by the peer.
AlreadySeenTransaction,
/// Peer failed to respond in time.
Timeout,
/// Peer does not adhere to network protocol rules.
BadProtocol,
/// Failed to establish a connection to the peer.
FailedToConnect,
/// Connection dropped by peer.
Dropped,
/// Reset the reputation to the default value.
Reset,
/// Apply a reputation change by value
Other(Reputation),
}
impl ReputationChangeKind {
/// Returns true if the reputation change is a [`ReputationChangeKind::Reset`].
pub const fn is_reset(&self) -> bool {
matches!(self, Self::Reset)
}
/// Returns true if the reputation change is [`ReputationChangeKind::Dropped`].
pub const fn is_dropped(&self) -> bool {
matches!(self, Self::Dropped)
}
}