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Clean capella (#4019)

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## Issue Addressed

Cleans up all the remnants of 4844 in capella. This makes sure when 4844 is reviewed there is nothing we are missing because it got included here 

## Proposed Changes

drop a bomb on every 4844 thing 

## Additional Info

Merge process I did (locally) is as follows:
- squash merge to produce one commit
- in new branch off unstable with the squashed commit create a `git revert HEAD` commit
- merge that new branch onto 4844 with `--strategy ours`
- compare local 4844 to remote 4844 and make sure the diff is empty
- enjoy

Co-authored-by: Paul Hauner <paul@paulhauner.com>
This commit is contained in:
Divma
2023-03-01 03:19:02 +00:00
parent 17d9a620cf
commit 047c7544e3
96 changed files with 199 additions and 2307 deletions
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136
beacon_node/beacon_chain/src/blob_verification.rs
View File

@@ -1,136 +0,0 @@
use derivative::Derivative;
use slot_clock::SlotClock;
use crate::beacon_chain::{BeaconChain, BeaconChainTypes, MAXIMUM_GOSSIP_CLOCK_DISPARITY};
use crate::BeaconChainError;
use bls::PublicKey;
use types::{consts::eip4844::BLS_MODULUS, BeaconStateError, BlobsSidecar, Slot};
pub enum BlobError {
/// The blob sidecar is from a slot that is later than the current slot (with respect to the
/// gossip clock disparity).
///
/// ## Peer scoring
///
/// Assuming the local clock is correct, the peer has sent an invalid message.
FutureSlot {
message_slot: Slot,
latest_permissible_slot: Slot,
},
/// The blob sidecar is from a slot that is prior to the earliest permissible slot (with
/// respect to the gossip clock disparity).
///
/// ## Peer scoring
///
/// Assuming the local clock is correct, the peer has sent an invalid message.
PastSlot {
message_slot: Slot,
earliest_permissible_slot: Slot,
},
/// The blob sidecar contains an incorrectly formatted `BLSFieldElement` > `BLS_MODULUS`.
///
///
/// ## Peer scoring
///
/// The peer has sent an invalid message.
BlobOutOfRange { blob_index: usize },
/// The blob sidecar contains a KZGCommitment that is not a valid G1 point on
/// the bls curve.
///
/// ## Peer scoring
///
/// The peer has sent an invalid message.
InvalidKZGCommitment,
/// The proposal signature in invalid.
///
/// ## Peer scoring
///
/// The signature on the blob sidecar invalid and the peer is faulty.
ProposalSignatureInvalid,
/// A blob sidecar for this proposer and slot has already been observed.
///
/// ## Peer scoring
///
/// The `proposer` has already proposed a sidecar at this slot. The existing sidecar may or may not
/// be equal to the given sidecar.
RepeatSidecar { proposer: u64, slot: Slot },
/// There was an error whilst processing the sync contribution. It is not known if it is valid or invalid.
///
/// ## Peer scoring
///
/// We were unable to process this sync committee message due to an internal error. It's unclear if the
/// sync committee message is valid.
BeaconChainError(BeaconChainError),
}
impl From<BeaconChainError> for BlobError {
fn from(e: BeaconChainError) -> Self {
BlobError::BeaconChainError(e)
}
}
impl From<BeaconStateError> for BlobError {
fn from(e: BeaconStateError) -> Self {
BlobError::BeaconChainError(BeaconChainError::BeaconStateError(e))
}
}
/// A wrapper around a `BlobsSidecar` that indicates it has been verified w.r.t the corresponding
/// `SignedBeaconBlock`.
#[derive(Derivative)]
#[derivative(Debug(bound = "T: BeaconChainTypes"))]
pub struct VerifiedBlobsSidecar<'a, T: BeaconChainTypes> {
pub blob_sidecar: &'a BlobsSidecar<T::EthSpec>,
}
impl<'a, T: BeaconChainTypes> VerifiedBlobsSidecar<'a, T> {
pub fn verify(
blob_sidecar: &'a BlobsSidecar<T::EthSpec>,
chain: &BeaconChain<T>,
) -> Result<Self, BlobError> {
let blob_slot = blob_sidecar.beacon_block_slot;
// Do not gossip or process blobs from future or past slots.
let latest_permissible_slot = chain
.slot_clock
.now_with_future_tolerance(MAXIMUM_GOSSIP_CLOCK_DISPARITY)
.ok_or(BeaconChainError::UnableToReadSlot)?;
if blob_slot > latest_permissible_slot {
return Err(BlobError::FutureSlot {
message_slot: latest_permissible_slot,
latest_permissible_slot: blob_slot,
});
}
let earliest_permissible_slot = chain
.slot_clock
.now_with_past_tolerance(MAXIMUM_GOSSIP_CLOCK_DISPARITY)
.ok_or(BeaconChainError::UnableToReadSlot)?;
if blob_slot > earliest_permissible_slot {
return Err(BlobError::PastSlot {
message_slot: earliest_permissible_slot,
earliest_permissible_slot: blob_slot,
});
}
// Verify that blobs are properly formatted
//TODO: add the check while constructing a Blob type from bytes instead of after
for (i, blob) in blob_sidecar.blobs.iter().enumerate() {
if blob.iter().any(|b| *b >= *BLS_MODULUS) {
return Err(BlobError::BlobOutOfRange { blob_index: i });
}
}
// Verify that the KZG proof is a valid G1 point
if PublicKey::deserialize(&blob_sidecar.kzg_aggregate_proof.0).is_err() {
return Err(BlobError::InvalidKZGCommitment);
}
// TODO: Check that we have not already received a sidecar with a valid signature for this slot.
Ok(Self { blob_sidecar })
}
}