cerc-io/ipld-eth-server
18
0
Fork 1
Code Issues 10 Pull Requests 1 Actions Packages Projects Releases 37 Wiki Activity

Re-order uncles if calculated uncle hash doesn't match

Browse Source
This commit is contained in:
Prathamesh Musale 2022-08-25 13:34:17 +05:30
parent e40e8a7335
commit 43c6178999
2 changed files with 20 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
pkg/eth/api.go
View File

@ -177,6 +177,7 @@ func (pea *PublicEthAPI) GetBlockByNumber(ctx context.Context, number rpc.BlockN
// GetBlockByHash returns the requested block. When fullTx is true all transactions in the block are returned in full
// detail, otherwise only the transaction hash is returned.
func (pea *PublicEthAPI) GetBlockByHash(ctx context.Context, hash common.Hash, fullTx bool) (map[string]interface{}, error) {
logrus.Debug("Received getBlockByHash request for hash ", hash.Hex())
block, err := pea.B.BlockByHash(ctx, hash)
if block != nil && err == nil {
return pea.rpcMarshalBlock(block, true, fullTx)
@ -1095,13 +1096,13 @@ func (pea *PublicEthAPI) writeStateDiffFor(blockHash common.Hash) {
func (pea *PublicEthAPI) rpcMarshalBlock(b *types.Block, inclTx bool, fullTx bool) (map[string]interface{}, error) {
fields, err := RPCMarshalBlock(b, inclTx, fullTx)
if err != nil {
logrus.Error("error RPC marshalling block with hash", b.Hash().String(), err)
logrus.Errorf("error RPC marshalling block with hash %s: %s", b.Hash().String(), err)
return nil, err
}
if inclTx {
td, err := pea.B.GetTd(b.Hash())
if err != nil {
logrus.Error("error getting td for block with hash and number", b.Hash().String(), b.Number().String(), err)
logrus.Errorf("error getting td for block with hash and number %s, %s: %s", b.Hash().String(), b.Number().String(), err)
return nil, err
}
fields["totalDifficulty"] = (*hexutil.Big)(td)

17
pkg/eth/backend.go
View File

@ -366,6 +366,23 @@ func (b *Backend) BlockByHash(ctx context.Context, hash common.Hash) (*types.Blo
return nil, err
}
// When num. of uncles = 2,
// Check if calculated uncle hash matches the one in header
// If not, re-order the two uncles
// Assumption: Max num. of uncles in mainnet = 2
if len(uncles) == 2 {
uncleHash := types.CalcUncleHash(uncles)
if uncleHash != header.UncleHash {
uncles[0], uncles[1] = uncles[1], uncles[0]
uncleHash = types.CalcUncleHash(uncles)
// Check if uncle hash matches after re-ordering
if uncleHash != header.UncleHash {
log.Error("uncle hash mismatch for block hash: ", hash.Hex())
}
}
}
// Fetch transactions
transactions, err := b.GetTransactionsByBlockHash(tx, hash)
if err != nil && err != sql.ErrNoRows {