checks for empty non empty requests scenario

Author: lucca30

consensus/bor/bor.go

@@ -391,6 +391,10 @@ func (c *Bor) verifyHeader(chain consensus.ChainHeaderReader, header *types.Head
 		return consensus.ErrUnexpectedWithdrawals
 	}
 
+	if header.RequestsHash != nil {
+		return consensus.ErrUnexpectedRequests
+	}
+
 	// All basic checks passed, verify cascading fields
 	return c.verifyCascadingFields(chain, header, parents)
 }
@@ -820,6 +824,9 @@ func (c *Bor) Finalize(chain consensus.ChainHeaderReader, header *types.Header,
 	if body.Withdrawals != nil || header.WithdrawalsHash != nil {
 		return
 	}
+	if body.Requests != nil || header.RequestsHash != nil {
+		return
+	}
 
 	var (
 		stateSyncData []*types.StateSyncData
@@ -906,6 +913,9 @@ func (c *Bor) FinalizeAndAssemble(chain consensus.ChainHeaderReader, header *typ
 	if body.Withdrawals != nil || header.WithdrawalsHash != nil {
 		return nil, consensus.ErrUnexpectedWithdrawals
 	}
+	if body.Requests != nil || header.RequestsHash != nil {
+		return nil, consensus.ErrUnexpectedRequests
+	}
 
 	var (
 		stateSyncData []*types.StateSyncData

consensus/errors.go

@@ -41,4 +41,7 @@ var (
 
 	// ErrUnexpectedWithdrawals is returned if a pre-Shanghai block has withdrawals.
 	ErrUnexpectedWithdrawals = errors.New("unexpected withdrawals")
+
+	// ErrUnexpectedRequests is returned if a pre-Shanghai block has requests.
+	ErrUnexpectedRequests = errors.New("unexpected requests")
 )