mirror of https://github.com/poanetwork/hbbft.git
97 lines
4.4 KiB
Rust
97 lines
4.4 KiB
Rust
use bincode;
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use failure::Fail;
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use crate::honey_badger;
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use crate::sync_key_gen;
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/// Dynamic honey badger error variants.
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#[derive(Debug, Fail)]
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pub enum Error {
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/// Failed to serialize a key generation message for signing.
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#[fail(display = "Error serializing a key gen message: {}", _0)]
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SerializeKeyGen(bincode::ErrorKind),
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/// Failed to serialize a vote for signing.
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#[fail(display = "Error serializing a vote: {}", _0)]
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SerializeVote(bincode::ErrorKind),
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/// Failed to propose a contribution in `HoneyBadger`.
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#[fail(display = "Error proposing a contribution in HoneyBadger: {}", _0)]
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ProposeHoneyBadger(honey_badger::Error),
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/// Failed to handle a `HoneyBadger` message.
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#[fail(display = "Error handling a HoneyBadger message: {}", _0)]
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HandleHoneyBadgerMessage(honey_badger::Error),
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/// Failed to handle a `SyncKeyGen` message.
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#[fail(display = "Error handling SyncKeyGen message: {}", _0)]
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SyncKeyGen(sync_key_gen::Error),
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/// The join plan contains contradictory information.
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#[fail(display = "Invalid Join Plan")]
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InvalidJoinPlan,
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/// Unknown sender
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#[fail(display = "Unknown sender")]
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UnknownSender,
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}
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/// The result of `DynamicHoneyBadger` handling an input or message.
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pub type Result<T> = ::std::result::Result<T, Error>;
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/// Represents each way an an incoming message can be considered faulty.
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#[derive(Clone, Debug, Fail, PartialEq)]
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pub enum FaultKind {
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/// `DynamicHoneyBadger` received a key generation message with an invalid signature.
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#[fail(
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display = "`DynamicHoneyBadger` received a key generation message with an invalid signature."
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)]
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InvalidKeyGenMessageSignature,
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/// `DynamicHoneyBadger` received a key generation message with an invalid era.
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#[fail(
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display = "`DynamicHoneyBadger` received a key generation message with an invalid era."
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)]
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InvalidKeyGenMessageEra,
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/// `DynamicHoneyBadger` received a key generation message when there was no key generation in
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/// progress.
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#[fail(
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display = "`DynamicHoneyBadger` received a key generation message when there was no key
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generation in progress."
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)]
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UnexpectedKeyGenMessage,
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/// `DynamicHoneyBadger` received a signed `Ack` when no key generation in progress.
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#[fail(
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display = "`DynamicHoneyBadger` received a signed `Ack` when no key generation in progress."
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)]
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UnexpectedKeyGenAck,
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/// `DynamicHoneyBadger` received a signed `Part` when no key generation in progress.
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#[fail(
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display = "`DynamicHoneyBadger` received a signed `Part` when no key generation in progress."
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)]
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UnexpectedKeyGenPart,
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/// `DynamicHoneyBadger` received more key generation messages from the peer than expected.
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#[fail(
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display = "`DynamicHoneyBadger` received more key generation messages from the peer than
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expected."
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)]
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TooManyKeyGenMessages,
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/// `DynamicHoneyBadger` received a message (Accept, Propose, or Change with an invalid
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/// signature.
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#[fail(
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display = "`DynamicHoneyBadger` received a message (Accept, Propose, or Change
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with an invalid signature."
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)]
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IncorrectPayloadSignature,
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/// `DynamicHoneyBadger`/`SyncKeyGen` received an invalid `Ack` message.
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#[fail(display = "`DynamicHoneyBadger`/`SyncKeyGen` received an invalid `Ack` message.")]
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SyncKeyGenAck(sync_key_gen::AckFault),
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/// `DynamicHoneyBadger`/`SyncKeyGen` received an invalid `Part` message.
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#[fail(display = "`DynamicHoneyBadger`/`SyncKeyGen` received an invalid `Part` message.")]
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SyncKeyGenPart(sync_key_gen::PartFault),
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/// `DynamicHoneyBadger` received a change vote with an invalid signature.
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#[fail(display = "`DynamicHoneyBadger` received a change vote with an invalid signature.")]
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InvalidVoteSignature,
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/// A validator committed an invalid vote in `DynamicHoneyBadger`.
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#[fail(display = "A validator committed an invalid vote in `DynamicHoneyBadger`.")]
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InvalidCommittedVote,
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/// `DynamicHoneyBadger` received a message with an invalid era.
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#[fail(display = "`DynamicHoneyBadger` received a message with an invalid era.")]
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UnexpectedDhbMessageEra,
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/// `DynamicHoneyBadger` received a fault from `HoneyBadger`.
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#[fail(display = "`DynamicHoneyBadger` received a fault from `HoneyBadger`.")]
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HbFault(honey_badger::FaultKind),
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}
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