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op-wheel: updates for geth Vana update
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protolambda committed Mar 21, 2023
1 parent b93874d commit 3acdf06
Showing 1 changed file with 16 additions and 14 deletions.
30 changes: 16 additions & 14 deletions op-wheel/cheat/cheat.go
Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,7 @@ import (
"path/filepath"
"strings"

"github.com/ethereum-optimism/optimism/op-node/eth"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus/beacon"
"github.com/ethereum/go-ethereum/consensus/ethash"
Expand Down Expand Up @@ -80,11 +81,11 @@ type HeadFn func(headState *state.StateDB) error
// and updates the blockchain headers indexes to reflect the new state-root, so geth will believe the cheat
// (unless it ever re-applies the block).
func (ch *Cheater) RunAndClose(fn HeadFn) error {
preBlock := ch.Blockchain.CurrentBlock()
if a, b := preBlock.NumberU64(), ch.Blockchain.Genesis().NumberU64(); a <= b {
preHeader := ch.Blockchain.CurrentBlock()
if a, b := preHeader.Number.Uint64(), ch.Blockchain.Genesis().NumberU64(); a <= b {
return fmt.Errorf("cheating at genesis (head block %d <= genesis block %d) is not supported", a, b)
}
state, err := ch.Blockchain.StateAt(preBlock.Root())
state, err := ch.Blockchain.StateAt(preHeader.Root)
if err != nil {
_ = ch.Close()
return fmt.Errorf("failed to look up head state: %w", err)
Expand All @@ -103,7 +104,7 @@ func (ch *Cheater) RunAndClose(fn HeadFn) error {
_ = ch.Close()
return fmt.Errorf("failed to commit state change: %w", err)
}
header := preBlock.Header()
header := preHeader // copy the header
header.Root = stateRoot
blockHash := header.Hash()

Expand All @@ -115,14 +116,15 @@ func (ch *Cheater) RunAndClose(fn HeadFn) error {
// based on core.BlockChain.writeHeadBlock:
// Add the block to the canonical chain number scheme and mark as the head
batch := ch.DB.NewBatch()
if ch.Blockchain.CurrentFinalizedBlock().Hash() == preBlock.Hash() {
preID := eth.BlockID{Hash: preHeader.Hash(), Number: preHeader.Number.Uint64()}
if ch.Blockchain.CurrentFinalBlock().Hash() == preID.Hash {
rawdb.WriteFinalizedBlockHash(batch, blockHash)
}
rawdb.DeleteHeaderNumber(batch, preBlock.Hash())
rawdb.DeleteHeaderNumber(batch, preHeader.Hash())
rawdb.WriteHeadHeaderHash(batch, blockHash)
rawdb.WriteHeadFastBlockHash(batch, blockHash)
rawdb.WriteCanonicalHash(batch, blockHash, preBlock.NumberU64())
rawdb.WriteHeaderNumber(batch, blockHash, preBlock.NumberU64())
rawdb.WriteCanonicalHash(batch, blockHash, preID.Number)
rawdb.WriteHeaderNumber(batch, blockHash, preID.Number)
rawdb.WriteHeader(batch, header)
// not keyed by blockhash, and we didn't remove any txs, so we just leave this one as-is.
// rawdb.WriteTxLookupEntriesByBlock(batch, block)
Expand All @@ -131,17 +133,17 @@ func (ch *Cheater) RunAndClose(fn HeadFn) error {
// Geth stores the TD for each block separately from the block itself. We must update this
// manually, otherwise Geth thinks we haven't reached TTD yet and tries to build a block
// using Clique consensus, which causes a panic.
rawdb.WriteTd(batch, blockHash, preBlock.NumberU64(), ch.Blockchain.GetTd(preBlock.Hash(), preBlock.NumberU64()))
rawdb.WriteTd(batch, blockHash, preID.Number, ch.Blockchain.GetTd(preID.Hash, preID.Number))

// Need to copy over receipts since they are keyed by block hash.
receipts := rawdb.ReadReceipts(ch.DB, preBlock.Hash(), preBlock.NumberU64(), ch.Blockchain.Config())
rawdb.WriteReceipts(batch, blockHash, preBlock.NumberU64(), receipts)
receipts := rawdb.ReadReceipts(ch.DB, preID.Hash, preID.Number, ch.Blockchain.Config())
rawdb.WriteReceipts(batch, blockHash, preID.Number, receipts)

// Geth maintains an internal mapping between block bodies and their hashes. None of the database
// accessors above update this mapping, so we need to do it manually.
oldKey := blockBodyKey(preBlock.NumberU64(), preBlock.Hash())
oldBody := rawdb.ReadBodyRLP(ch.DB, preBlock.Hash(), preBlock.NumberU64())
newKey := blockBodyKey(preBlock.NumberU64(), blockHash)
oldKey := blockBodyKey(preID.Number, preID.Hash)
oldBody := rawdb.ReadBodyRLP(ch.DB, preID.Hash, preID.Number)
newKey := blockBodyKey(preID.Number, blockHash)
if err := batch.Delete(oldKey); err != nil {
return fmt.Errorf("error deleting old block body key")
}
Expand Down

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