consensus, core, ethstats: use engine specific block beneficiary (#14318)

* consensus, core, ethstats: use engine specific block beneficiary

* core, eth, les, miner: use explicit beneficiary during mining

1 files changed, 18 insertions, 7 deletions

diff --git a/core/evm.go b/core/evm.go
index 6a5713075..49a786a86 100644
--- a/core/evm.go
+++ b/core/evm.go
@@ -20,25 +20,36 @@ import (
 	"math/big"
 
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/consensus"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/vm"
 )
 
-// BlockFetcher retrieves headers by their hash
-type HeaderFetcher interface {
-	// GetHeader returns the hash corresponding to their hash
+// ChainContext supports retrieving headers and consensus parameters from the
+// current blockchain to be used during transaction processing.
+type ChainContext interface {
+	// Engine retrieves the chain's consensus engine.
+	Engine() consensus.Engine
+
+	// GetHeader returns the hash corresponding to their hash.
 	GetHeader(common.Hash, uint64) *types.Header
 }
 
 // NewEVMContext creates a new context for use in the EVM.
-func NewEVMContext(msg Message, header *types.Header, chain HeaderFetcher) vm.Context {
+func NewEVMContext(msg Message, header *types.Header, chain ChainContext, author *common.Address) vm.Context {
+	// If we don't have an explicit author (i.e. not mining), extract from the header
+	var beneficiary common.Address
+	if author == nil {
+		beneficiary, _ = chain.Engine().Author(header) // Ignore error, we're past header validation
+	} else {
+		beneficiary = *author
+	}
 	return vm.Context{
 		CanTransfer: CanTransfer,
 		Transfer:    Transfer,
 		GetHash:     GetHashFn(header, chain),
-
 		Origin:      msg.From(),
-		Coinbase:    header.Coinbase,
+		Coinbase:    beneficiary,
 		BlockNumber: new(big.Int).Set(header.Number),
 		Time:        new(big.Int).Set(header.Time),
 		Difficulty:  new(big.Int).Set(header.Difficulty),
@@ -48,7 +59,7 @@ func NewEVMContext(msg Message, header *types.Header, chain HeaderFetcher) vm.Co
 }
 
 // GetHashFn returns a GetHashFunc which retrieves header hashes by number
-func GetHashFn(ref *types.Header, chain HeaderFetcher) func(n uint64) common.Hash {
+func GetHashFn(ref *types.Header, chain ChainContext) func(n uint64) common.Hash {
 	return func(n uint64) common.Hash {
 		for header := chain.GetHeader(ref.ParentHash, ref.Number.Uint64()-1); header != nil; header = chain.GetHeader(header.ParentHash, header.Number.Uint64()-1) {
 			if header.Number.Uint64() == n {