Merge pull request #5 from asn-d6/eip4844-tooling

Fix a bunch of bugs found during development of EIP-4844 tooling
protolambda · Mar 22, 2022 · d6fb210 · d6fb210
2 parents 6f21779 + f87c6d6
commit d6fb210
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Showing 4 changed files with 14 additions and 8 deletions.
diff --git a/core/types/data_blob.go b/core/types/data_blob.go
@@ -292,15 +292,18 @@ func (blobs Blobs) copy() Blobs {
 	return cpy
 }
 
-func (blobs Blobs) ComputeCommitments() (commitments []KZGCommitment, ok bool) {
+// Return KZG commitments and versioned hashes that correspond to these blobs
+func (blobs Blobs) ComputeCommitments() (commitments []KZGCommitment, versionedHashes []common.Hash, ok bool) {
 	commitments = make([]KZGCommitment, len(blobs))
+	versionedHashes = make([]common.Hash, len(blobs))
 	for i, blob := range blobs {
 		commitments[i], ok = blob.ComputeCommitment()
 		if !ok {
-			return nil, false
+			return nil, nil, false
 		}
+		versionedHashes[i] = commitments[i].ComputeVersionedHash()
 	}
-	return commitments, true
+	return commitments, versionedHashes, true
 }
 
 type BlobTxWrapper struct {

diff --git a/core/types/transaction.go b/core/types/transaction.go
@@ -230,7 +230,7 @@ func (tx *Transaction) UnmarshalBinary(b []byte) error {
 	if err != nil {
 		return err
 	}
-	tx.setDecoded(inner, len(b))
+	tx.setDecoded(inner, 0)
 	tx.wrapData = wrapData
 	return nil
 }

diff --git a/core/types/transaction_signing.go b/core/types/transaction_signing.go
@@ -92,7 +92,8 @@ func LatestSignerForChainID(chainID *big.Int) Signer {
 	if chainID == nil {
 		return HomesteadSigner{}
 	}
-	return NewLondonSigner(chainID)
+	return NewDankSigner(chainID)
+
 }
 
 // SignTx signs the transaction using the given signer and private key.

diff --git a/internal/ethapi/transaction_args.go b/internal/ethapi/transaction_args.go
@@ -267,12 +267,14 @@ func (args *TransactionArgs) toTransaction() *types.Transaction {
 		msg.Value.SetFromBig((*big.Int)(args.Value))
 		msg.Data = args.data()
 		msg.AccessList = types.AccessListView(al)
-		kzgs, ok := types.Blobs(args.Blobs).ComputeCommitments()
-		if ok { // if blobs are invalid we will omit the wrap-data
+		commitments, versionedHashes, ok := types.Blobs(args.Blobs).ComputeCommitments()
+		// XXX if blobs are invalid we will omit the wrap-data (and an error will pop-up later)
+		if ok {
 			opts = append(opts, types.WithTxWrapData(&types.BlobTxWrapData{
-				BlobKzgs: kzgs,
+				BlobKzgs: commitments,
 				Blobs:    args.Blobs,
 			}))
+			msg.BlobVersionedHashes = versionedHashes
 		}
 		data = &types.SignedBlobTx{Message: msg}
 	case args.MaxFeePerGas != nil: