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eth/catalyst: update simulated beacon for cancun #28829

Merged
merged 10 commits into from
Feb 29, 2024
28 changes: 24 additions & 4 deletions eth/catalyst/simulated_beacon.go
Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,7 @@ package catalyst

import (
"crypto/rand"
"crypto/sha256"
"errors"
"math/big"
"sync"
Expand All @@ -26,6 +27,7 @@ import (
"github.com/ethereum/go-ethereum/beacon/engine"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto/kzg4844"
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/node"
Expand Down Expand Up @@ -148,7 +150,12 @@ func (c *SimulatedBeacon) sealBlock(withdrawals []*types.Withdrawal, timestamp u
c.feeRecipientLock.Unlock()

// Reset to CurrentBlock in case of the chain was rewound
if header := c.eth.BlockChain().CurrentBlock(); c.curForkchoiceState.HeadBlockHash != header.Hash() {
var (
header = c.eth.BlockChain().CurrentBlock()
number = new(big.Int).Add(header.Number, big.NewInt(1))
isCancun = c.eth.BlockChain().Config().IsCancun(number, timestamp)
)
if c.curForkchoiceState.HeadBlockHash != header.Hash() {
finalizedHash := c.finalizedBlockHash(header.Number.Uint64())
c.setCurrentState(header.Hash(), *finalizedHash)
}
Expand All @@ -167,7 +174,6 @@ func (c *SimulatedBeacon) sealBlock(withdrawals []*types.Withdrawal, timestamp u
if fcResponse == engine.STATUS_SYNCING {
return errors.New("chain rewind prevented invocation of payload creation")
}

envelope, err := c.engineAPI.getPayload(*fcResponse.PayloadID, true)
if err != nil {
return err
Expand All @@ -186,8 +192,22 @@ func (c *SimulatedBeacon) sealBlock(withdrawals []*types.Withdrawal, timestamp u
}

// Mark the payload as canon
if _, err = c.engineAPI.NewPayloadV2(*payload); err != nil {
return err
if isCancun {
blobHashes := make([]common.Hash, 0)
if envelope.BlobsBundle != nil {
hasher := sha256.New()
for _, commit := range envelope.BlobsBundle.Commitments {
c := kzg4844.Commitment(commit[:])
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blobHashes = append(blobHashes, kzg4844.CalcBlobHashV1(hasher, &c))
}
}
if _, err = c.engineAPI.NewPayloadV3(*payload, blobHashes, &common.Hash{}); err != nil {
return err
}
} else {
if _, err = c.engineAPI.NewPayloadV2(*payload); err != nil {
return err
}
}
c.setCurrentState(payload.BlockHash, finalizedHash)

Expand Down
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