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spec v0.6.1: attestation processing/verif

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Michael Sproul
2019-05-21 16:38:16 +10:00
parent f8d4e742ad
commit 0b2aa26f2d
7 changed files with 227 additions and 298 deletions
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27
eth2/state_processing/src/per_block_processing/errors.rs
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@@ -126,6 +126,8 @@ pub enum AttestationInvalid {
},
/// Attestation slot is too far in the past to be included in a block.
IncludedTooLate { state: Slot, attestation: Slot },
/// Attestation target epoch does not match the current or previous epoch.
BadTargetEpoch,
/// Attestation justified epoch does not match the states current or previous justified epoch.
///
/// `is_current` is `true` if the attestation was compared to the
@@ -170,11 +172,20 @@ pub enum AttestationInvalid {
BadSignature,
/// The shard block root was not set to zero. This is a phase 0 requirement.
ShardBlockRootNotZero,
/// The indexed attestation created from this attestation was found to be invalid.
BadIndexedAttestation(IndexedAttestationInvalid),
}
impl_from_beacon_state_error!(AttestationValidationError);
impl_into_with_index_with_beacon_error!(AttestationValidationError, AttestationInvalid);
impl From<IndexedAttestationValidationError> for AttestationValidationError {
fn from(err: IndexedAttestationValidationError) -> Self {
let IndexedAttestationValidationError::Invalid(e) = err;
AttestationValidationError::Invalid(AttestationInvalid::BadIndexedAttestation(e))
}
}
/*
* `AttesterSlashing` Validation
*/
@@ -224,25 +235,23 @@ pub enum IndexedAttestationValidationError {
/// Describes why an object is invalid.
#[derive(Debug, PartialEq)]
pub enum IndexedAttestationInvalid {
/// The custody bit 0 validators intersect with the bit 1 validators.
CustodyBitValidatorsIntersect,
/// The custody bitfield has some bits set `true`. This is not allowed in phase 0.
CustodyBitfieldHasSetBits,
/// No validator indices were specified.
NoValidatorIndices,
/// The number of indices exceeds the global maximum.
///
/// (max_indices, indices_given)
MaxIndicesExceed(u64, usize),
/// The validator indices were not in increasing order.
///
/// The error occured between the given `index` and `index + 1`
BadValidatorIndicesOrdering(usize),
/// The custody bitfield length is not the smallest possible size to represent the validators.
///
/// (validators_len, bitfield_len)
BadCustodyBitfieldLength(usize, usize),
/// The number of slashable indices exceed the global maximum.
///
/// (max_indices, indices_given)
MaxIndicesExceed(usize, usize),
/// The validator index is unknown. One cannot slash one who does not exist.
UnknownValidator(u64),
/// The slashable attestation aggregate signature was not valid.
/// The indexed attestation aggregate signature was not valid.
BadSignature,
}