all: impl eip-7702

Co-authored-by: lightclient <lightclient@protonmail.com>
Co-authored-by: Mario Vega <marioevz@gmail.com>

cmd/evm/internal/t8ntool/transaction.go

@@ -133,7 +133,7 @@ func Transaction(ctx *cli.Context) error {
 			r.Address = sender
 		}
 		// Check intrinsic gas
-		if gas, err := core.IntrinsicGas(tx.Data(), tx.AccessList(), tx.To() == nil,
+		if gas, err := core.IntrinsicGas(tx.Data(), tx.AccessList(), tx.AuthList(), tx.To() == nil,
 			chainConfig.IsHomestead(new(big.Int)), chainConfig.IsIstanbul(new(big.Int)), chainConfig.IsShanghai(new(big.Int), 0)); err != nil {
 			r.Error = err
 			results = append(results, r)

cmd/evm/staterunner.go

@@ -91,7 +91,7 @@ func runStateTest(fname string, cfg vm.Config, dump bool) error {
 	}
 	var testsByName map[string]tests.StateTest
 	if err := json.Unmarshal(src, &testsByName); err != nil {
-		return err
+		return fmt.Errorf("unable to read test file: %w", err)
 	}
 
 	// Iterate over all the tests, run them and aggregate the results

core/bench_test.go

@@ -83,7 +83,7 @@ func genValueTx(nbytes int) func(int, *BlockGen) {
 	return func(i int, gen *BlockGen) {
 		toaddr := common.Address{}
 		data := make([]byte, nbytes)
-		gas, _ := IntrinsicGas(data, nil, false, false, false, false)
+		gas, _ := IntrinsicGas(data, nil, nil, false, false, false, false)
 		signer := gen.Signer()
 		gasPrice := big.NewInt(0)
 		if gen.header.BaseFee != nil {

core/error.go

@@ -112,4 +112,7 @@ var (
 
 	// ErrBlobTxCreate is returned if a blob transaction has no explicit to field.
 	ErrBlobTxCreate = errors.New("blob transaction of type create")
+
+	// ErrEmptyAuthList is returned if a set code transaction has an empty auth list.
+	ErrEmptyAuthList = errors.New("set code transaction with empty auth list")
 )

core/setcode_test.go

@@ -0,0 +1,131 @@
+package core
+
+import (
+	"bytes"
+	"math/big"
+	"os"
+	"testing"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/consensus/beacon"
+	"github.com/ethereum/go-ethereum/core/rawdb"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/core/vm"
+	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/ethereum/go-ethereum/eth/tracers/logger"
+	"github.com/ethereum/go-ethereum/params"
+	"github.com/holiman/uint256"
+)
+
+func TestEIP7702(t *testing.T) {
+	var (
+		aa     = common.HexToAddress("0x000000000000000000000000000000000000aaaa")
+		bb     = common.HexToAddress("0x000000000000000000000000000000000000bbbb")
+		engine = beacon.NewFaker()
+
+		// A sender who makes transactions, has some funds
+		key1, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
+		key2, _ = crypto.HexToECDSA("8a1f9a8f95be41cd7ccb6168179afb4504aefe388d1e14474d32c45c72ce7b7a")
+		addr1   = crypto.PubkeyToAddress(key1.PublicKey)
+		addr2   = crypto.PubkeyToAddress(key2.PublicKey)
+		funds   = new(big.Int).Mul(common.Big1, big.NewInt(params.Ether))
+		config  = *params.AllEthashProtocolChanges
+		gspec   = &Genesis{
+			Config: &config,
+			Alloc: types.GenesisAlloc{
+				addr1: {Balance: funds},
+				addr2: {Balance: funds},
+				// The address 0xAAAA sstores 1 into slot 2.
+				aa: {
+					Code: []byte{
+						byte(vm.PC),          // [0]
+						byte(vm.DUP1),        // [0,0]
+						byte(vm.DUP1),        // [0,0,0]
+						byte(vm.DUP1),        // [0,0,0,0]
+						byte(vm.PUSH1), 0x01, // [0,0,0,0,1] (value)
+						byte(vm.PUSH20), addr2[0], addr2[1], addr2[2], addr2[3], addr2[4], addr2[5], addr2[6], addr2[7], addr2[8], addr2[9], addr2[10], addr2[11], addr2[12], addr2[13], addr2[14], addr2[15], addr2[16], addr2[17], addr2[18], addr2[19],
+						byte(vm.GAS),
+						byte(vm.CALL),
+						byte(vm.STOP),
+					},
+					Nonce:   0,
+					Balance: big.NewInt(0),
+				},
+				// The address 0xBBBB sstores 42 into slot 42.
+				bb: {
+					Code: []byte{
+						byte(vm.PUSH1), 0x42,
+						byte(vm.DUP1),
+						byte(vm.SSTORE),
+						byte(vm.STOP),
+					},
+					Nonce:   0,
+					Balance: big.NewInt(0),
+				},
+			},
+		}
+	)
+
+	gspec.Config.BerlinBlock = common.Big0
+	gspec.Config.LondonBlock = common.Big0
+	gspec.Config.TerminalTotalDifficulty = common.Big0
+	gspec.Config.TerminalTotalDifficultyPassed = true
+	gspec.Config.ShanghaiTime = u64(0)
+	gspec.Config.CancunTime = u64(0)
+	gspec.Config.PragueTime = u64(0)
+	signer := types.LatestSigner(gspec.Config)
+
+	auth1, _ := types.SignAuth(&types.Authorization{
+		ChainID: new(big.Int).Set(gspec.Config.ChainID),
+		Address: aa,
+		Nonce:   1,
+	}, key1)
+
+	auth2, _ := types.SignAuth(&types.Authorization{
+		ChainID: new(big.Int),
+		Address: bb,
+		Nonce:   0,
+	}, key2)
+
+	_, blocks, _ := GenerateChainWithGenesis(gspec, engine, 1, func(i int, b *BlockGen) {
+		b.SetCoinbase(aa)
+		txdata := &types.SetCodeTx{
+			ChainID:   uint256.MustFromBig(gspec.Config.ChainID),
+			Nonce:     0,
+			To:        addr1,
+			Gas:       500000,
+			GasFeeCap: uint256.MustFromBig(newGwei(5)),
+			GasTipCap: uint256.NewInt(2),
+			AuthList:  []*types.Authorization{auth1, auth2},
+		}
+		tx := types.NewTx(txdata)
+		tx, err := types.SignTx(tx, signer, key1)
+		if err != nil {
+			t.Fatalf("%s", err)
+		}
+		b.AddTx(tx)
+	})
+	chain, err := NewBlockChain(rawdb.NewMemoryDatabase(), nil, gspec, nil, engine, vm.Config{Tracer: logger.NewMarkdownLogger(&logger.Config{}, os.Stderr).Hooks()}, nil)
+	if err != nil {
+		t.Fatalf("failed to create tester chain: %v", err)
+	}
+	defer chain.Stop()
+	if n, err := chain.InsertChain(blocks); err != nil {
+		t.Fatalf("block %d: failed to insert into chain: %v", n, err)
+	}
+
+	var (
+		state, _ = chain.State()
+		fortyTwo = common.BytesToHash([]byte{0x42})
+		actual   = state.GetState(addr2, fortyTwo)
+	)
+	if code, want := state.GetCode(addr1), types.AddressToDelegation(auth1.Address); !bytes.Equal(code, want) {
+		t.Fatalf("addr1 code incorrect: got %s, want %s", common.Bytes2Hex(code), common.Bytes2Hex(want))
+	}
+	if code, want := state.GetCode(addr2), types.AddressToDelegation(auth2.Address); !bytes.Equal(code, want) {
+		t.Fatalf("addr2 code incorrect: got %s, want %s", common.Bytes2Hex(code), common.Bytes2Hex(want))
+	}
+	if actual.Cmp(fortyTwo) != 0 {
+		t.Fatalf("addr2 storage wrong: expected %d, got %d", fortyTwo, actual)
+	}
+}

core/state/statedb.go

@@ -373,6 +373,22 @@ func (s *StateDB) GetCodeHash(addr common.Address) common.Hash {
 	return common.Hash{}
 }
 
+func (s *StateDB) ResolveCode(addr common.Address) []byte {
+	stateObject := s.resolveStateObject(addr)
+	if stateObject != nil {
+		return stateObject.Code()
+	}
+	return nil
+}
+
+func (s *StateDB) ResolveCodeHash(addr common.Address) common.Hash {
+	stateObject := s.resolveStateObject(addr)
+	if stateObject != nil {
+		return common.BytesToHash(stateObject.CodeHash())
+	}
+	return common.Hash{}
+}
+
 // GetState retrieves the value associated with the specific key.
 func (s *StateDB) GetState(addr common.Address, hash common.Hash) common.Hash {
 	stateObject := s.getStateObject(addr)
@@ -599,6 +615,18 @@ func (s *StateDB) getStateObject(addr common.Address) *stateObject {
 	return obj
 }
 
+func (s *StateDB) resolveStateObject(addr common.Address) *stateObject {
+	obj := s.getStateObject(addr)
+	if obj == nil {
+		return nil
+	}
+	addr, ok := types.ParseDelegation(obj.Code())
+	if !ok {
+		return obj
+	}
+	return s.getStateObject(addr)
+}
+
 func (s *StateDB) setStateObject(object *stateObject) {
 	s.stateObjects[object.Address()] = object
 }
@@ -1335,6 +1363,10 @@ func (s *StateDB) Prepare(rules params.Rules, sender, coinbase common.Address, d
 		al.AddAddress(sender)
 		if dst != nil {
 			al.AddAddress(*dst)
+			// TODO: is this right?
+			if addr, ok := types.ParseDelegation(s.GetCode(*dst)); ok {
+				al.AddAddress(addr)
+			}
 			// If it's a create-tx, the destination will be added inside evm.create
 		}
 		for _, addr := range precompiles {

core/state_processor_test.go

@@ -430,12 +430,12 @@ func GenerateBadBlock(parent *types.Block, engine consensus.Engine, txs types.Tr
 
 var (
 	code                            = common.FromHex(`6060604052600a8060106000396000f360606040526008565b00`)
-	intrinsicContractCreationGas, _ = IntrinsicGas(code, nil, true, true, true, true)
+	intrinsicContractCreationGas, _ = IntrinsicGas(code, nil, nil, true, true, true, true)
 	// A contract creation that calls EXTCODECOPY in the constructor. Used to ensure that the witness
 	// will not contain that copied data.
 	// Source: https://gist.github.com/gballet/a23db1e1cb4ed105616b5920feb75985
 	codeWithExtCodeCopy                = common.FromHex(`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`)
-	intrinsicCodeWithExtCodeCopyGas, _ = IntrinsicGas(codeWithExtCodeCopy, nil, true, true, true, true)
+	intrinsicCodeWithExtCodeCopyGas, _ = IntrinsicGas(codeWithExtCodeCopy, nil, nil, true, true, true, true)
 )
 
 func TestProcessVerkle(t *testing.T) {

core/state_transition.go

@@ -17,6 +17,7 @@
 package core
 
 import (
+	"bytes"
 	"fmt"
 	"math"
 	"math/big"
@@ -27,6 +28,7 @@ import (
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/vm"
 	"github.com/ethereum/go-ethereum/crypto/kzg4844"
+	"github.com/ethereum/go-ethereum/crypto/secp256k1"
 	"github.com/ethereum/go-ethereum/params"
 	"github.com/holiman/uint256"
 )
@@ -68,7 +70,7 @@ func (result *ExecutionResult) Revert() []byte {
 }
 
 // IntrinsicGas computes the 'intrinsic gas' for a message with the given data.
-func IntrinsicGas(data []byte, accessList types.AccessList, isContractCreation, isHomestead, isEIP2028, isEIP3860 bool) (uint64, error) {
+func IntrinsicGas(data []byte, accessList types.AccessList, authList types.AuthorizationList, isContractCreation, isHomestead, isEIP2028, isEIP3860 bool) (uint64, error) {
 	// Set the starting gas for the raw transaction
 	var gas uint64
 	if isContractCreation && isHomestead {
@@ -114,6 +116,9 @@ func IntrinsicGas(data []byte, accessList types.AccessList, isContractCreation,
 		gas += uint64(len(accessList)) * params.TxAccessListAddressGas
 		gas += uint64(accessList.StorageKeys()) * params.TxAccessListStorageKeyGas
 	}
+	if authList != nil {
+		gas += uint64(len(authList)) * params.CallNewAccountGas
+	}
 	return gas, nil
 }
 
@@ -141,6 +146,7 @@ type Message struct {
 	AccessList    types.AccessList
 	BlobGasFeeCap *big.Int
 	BlobHashes    []common.Hash
+	AuthList      types.AuthorizationList
 
 	// When SkipNonceChecks is true, the message nonce is not checked against the
 	// account nonce in state.
@@ -163,6 +169,7 @@ func TransactionToMessage(tx *types.Transaction, s types.Signer, baseFee *big.In
 		Value:            tx.Value(),
 		Data:             tx.Data(),
 		AccessList:       tx.AccessList(),
+		AuthList:         tx.AuthList(),
 		SkipNonceChecks:  false,
 		SkipFromEOACheck: false,
 		BlobHashes:       tx.BlobHashes(),
@@ -300,10 +307,10 @@ func (st *StateTransition) preCheck() error {
 	}
 	if !msg.SkipFromEOACheck {
 		// Make sure the sender is an EOA
-		codeHash := st.state.GetCodeHash(msg.From)
+		code := st.state.GetCode(msg.From)
-		if codeHash != (common.Hash{}) && codeHash != types.EmptyCodeHash {
+		if 0 < len(code) && !bytes.HasPrefix(code, []byte{0xef, 0x01, 0x00}) {
 			return fmt.Errorf("%w: address %v, codehash: %s", ErrSenderNoEOA,
-				msg.From.Hex(), codeHash)
+				msg.From.Hex(), st.state.GetCodeHash(msg.From))
 		}
 	}
 	// Make sure that transaction gasFeeCap is greater than the baseFee (post london)
@@ -363,6 +370,27 @@ func (st *StateTransition) preCheck() error {
 			}
 		}
 	}
+
+	// Check that auth list isn't empty.
+	if msg.AuthList != nil && len(msg.AuthList) == 0 {
+		return fmt.Errorf("%w: address %v", ErrEmptyAuthList, msg.From.Hex())
+	}
+
+	// TODO: remove after this spec change is merged:
+	// https://github.com/ethereum/EIPs/pull/8845
+	if msg.AuthList != nil {
+		var (
+			secp256k1N     = secp256k1.S256().Params().N
+			secp256k1halfN = new(big.Int).Div(secp256k1N, big.NewInt(2))
+		)
+		for _, auth := range msg.AuthList {
+			if auth.V.Cmp(common.Big1) > 0 || auth.S.Cmp(secp256k1halfN) > 0 {
+				w := fmt.Errorf("set code transaction with invalid auth signature")
+				return fmt.Errorf("%w: address %v", w, msg.From.Hex())
+			}
+		}
+	}
+
 	return st.buyGas()
 }
 
@@ -400,7 +428,7 @@ func (st *StateTransition) TransitionDb() (*ExecutionResult, error) {
 	)
 
 	// Check clauses 4-5, subtract intrinsic gas if everything is correct
-	gas, err := IntrinsicGas(msg.Data, msg.AccessList, contractCreation, rules.IsHomestead, rules.IsIstanbul, rules.IsShanghai)
+	gas, err := IntrinsicGas(msg.Data, msg.AccessList, msg.AuthList, contractCreation, rules.IsHomestead, rules.IsIstanbul, rules.IsShanghai)
 	if err != nil {
 		return nil, err
 	}
@@ -439,6 +467,42 @@ func (st *StateTransition) TransitionDb() (*ExecutionResult, error) {
 	// - reset transient storage(eip 1153)
 	st.state.Prepare(rules, msg.From, st.evm.Context.Coinbase, msg.To, vm.ActivePrecompiles(rules), msg.AccessList)
 
+	if !contractCreation {
+		// Increment the nonce for the next transaction
+		st.state.SetNonce(msg.From, st.state.GetNonce(sender.Address())+1)
+	}
+
+	// Check authorizations list validity.
+	if msg.AuthList != nil {
+		for _, auth := range msg.AuthList {
+			// Verify chain ID is 0 or equal to current chain ID.
+			if auth.ChainID.Sign() != 0 && st.evm.ChainConfig().ChainID.Cmp(auth.ChainID) != 0 {
+				continue
+			}
+			authority, err := auth.Authority()
+			if err != nil {
+				continue
+			}
+			// Check the authority account 1) doesn't have code or has exisiting
+			// delegation 2) matches the auth's nonce
+			st.state.AddAddressToAccessList(authority)
+			code := st.state.GetCode(authority)
+			if _, ok := types.ParseDelegation(code); len(code) != 0 && !ok {
+				continue
+			}
+			if have := st.state.GetNonce(authority); have != auth.Nonce {
+				continue
+			}
+			// If the account already exists in state, refund the new account cost
+			// charged in the initrinsic calculation.
+			if exists := st.state.Exist(authority); exists {
+				st.state.AddRefund(params.CallNewAccountGas - params.TxAuthTupleGas)
+			}
+			st.state.SetNonce(authority, auth.Nonce+1)
+			st.state.SetCode(authority, types.AddressToDelegation(auth.Address))
+		}
+	}
+
 	var (
 		ret   []byte
 		vmerr error // vm errors do not effect consensus and are therefore not assigned to err
@@ -446,8 +510,6 @@ func (st *StateTransition) TransitionDb() (*ExecutionResult, error) {
 	if contractCreation {
 		ret, _, st.gasRemaining, vmerr = st.evm.Create(sender, msg.Data, st.gasRemaining, value)
 	} else {
-		// Increment the nonce for the next transaction
-		st.state.SetNonce(msg.From, st.state.GetNonce(sender.Address())+1)
 		ret, st.gasRemaining, vmerr = st.evm.Call(sender, st.to(), msg.Data, st.gasRemaining, value)
 	}
 

core/txpool/legacypool/legacypool.go

@@ -278,7 +278,7 @@ func New(config Config, chain BlockChain) *LegacyPool {
 // pool, specifically, whether it is a Legacy, AccessList or Dynamic transaction.
 func (pool *LegacyPool) Filter(tx *types.Transaction) bool {
 	switch tx.Type() {
-	case types.LegacyTxType, types.AccessListTxType, types.DynamicFeeTxType:
+	case types.SetCodeTxType, types.LegacyTxType, types.AccessListTxType, types.DynamicFeeTxType:
 		return true
 	default:
 		return false
@@ -610,7 +610,8 @@ func (pool *LegacyPool) validateTxBasics(tx *types.Transaction, local bool) erro
 		Accept: 0 |
 			1<<types.LegacyTxType |
 			1<<types.AccessListTxType |
-			1<<types.DynamicFeeTxType,
+			1<<types.DynamicFeeTxType |
+			1<<types.SetCodeTxType,
 		MaxSize: txMaxSize,
 		MinTip:  pool.gasTip.Load().ToBig(),
 	}

core/txpool/validation.go

@@ -103,7 +103,7 @@ func ValidateTransaction(tx *types.Transaction, head *types.Header, signer types
 	}
 	// Ensure the transaction has more gas than the bare minimum needed to cover
 	// the transaction metadata
-	intrGas, err := core.IntrinsicGas(tx.Data(), tx.AccessList(), tx.To() == nil, true, opts.Config.IsIstanbul(head.Number), opts.Config.IsShanghai(head.Number, head.Time))
+	intrGas, err := core.IntrinsicGas(tx.Data(), tx.AccessList(), tx.AuthList(), tx.To() == nil, true, opts.Config.IsIstanbul(head.Number), opts.Config.IsShanghai(head.Number, head.Time))
 	if err != nil {
 		return err
 	}

core/types/gen_authorization.go

@@ -0,0 +1,75 @@
+// Code generated by github.com/fjl/gencodec. DO NOT EDIT.
+
+package types
+
+import (
+	"encoding/json"
+	"errors"
+	"math/big"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/common/hexutil"
+)
+
+var _ = (*authorizationMarshaling)(nil)
+
+// MarshalJSON marshals as JSON.
+func (a Authorization) MarshalJSON() ([]byte, error) {
+	type Authorization struct {
+		ChainID *hexutil.Big   `json:"chainId" gencodec:"required"`
+		Address common.Address `json:"address" gencodec:"required"`
+		Nonce   hexutil.Uint64 `json:"nonce" gencodec:"required"`
+		V       *hexutil.Big   `json:"v" gencodec:"required"`
+		R       *hexutil.Big   `json:"r" gencodec:"required"`
+		S       *hexutil.Big   `json:"s" gencodec:"required"`
+	}
+	var enc Authorization
+	enc.ChainID = (*hexutil.Big)(a.ChainID)
+	enc.Address = a.Address
+	enc.Nonce = hexutil.Uint64(a.Nonce)
+	enc.V = (*hexutil.Big)(a.V)
+	enc.R = (*hexutil.Big)(a.R)
+	enc.S = (*hexutil.Big)(a.S)
+	return json.Marshal(&enc)
+}
+
+// UnmarshalJSON unmarshals from JSON.
+func (a *Authorization) UnmarshalJSON(input []byte) error {
+	type Authorization struct {
+		ChainID *hexutil.Big    `json:"chainId" gencodec:"required"`
+		Address *common.Address `json:"address" gencodec:"required"`
+		Nonce   *hexutil.Uint64 `json:"nonce" gencodec:"required"`
+		V       *hexutil.Big    `json:"v" gencodec:"required"`
+		R       *hexutil.Big    `json:"r" gencodec:"required"`
+		S       *hexutil.Big    `json:"s" gencodec:"required"`
+	}
+	var dec Authorization
+	if err := json.Unmarshal(input, &dec); err != nil {
+		return err
+	}
+	if dec.ChainID == nil {
+		return errors.New("missing required field 'chainId' for Authorization")
+	}
+	a.ChainID = (*big.Int)(dec.ChainID)
+	if dec.Address == nil {
+		return errors.New("missing required field 'address' for Authorization")
+	}
+	a.Address = *dec.Address
+	if dec.Nonce == nil {
+		return errors.New("missing required field 'nonce' for Authorization")
+	}
+	a.Nonce = uint64(*dec.Nonce)
+	if dec.V == nil {
+		return errors.New("missing required field 'v' for Authorization")
+	}
+	a.V = (*big.Int)(dec.V)
+	if dec.R == nil {
+		return errors.New("missing required field 'r' for Authorization")
+	}
+	a.R = (*big.Int)(dec.R)
+	if dec.S == nil {
+		return errors.New("missing required field 's' for Authorization")
+	}
+	a.S = (*big.Int)(dec.S)
+	return nil
+}

core/types/receipt.go

@@ -204,7 +204,7 @@ func (r *Receipt) decodeTyped(b []byte) error {
 		return errShortTypedReceipt
 	}
 	switch b[0] {
-	case DynamicFeeTxType, AccessListTxType, BlobTxType:
+	case DynamicFeeTxType, AccessListTxType, BlobTxType, SetCodeTxType:
 		var data receiptRLP
 		err := rlp.DecodeBytes(b[1:], &data)
 		if err != nil {
@@ -312,7 +312,7 @@ func (rs Receipts) EncodeIndex(i int, w *bytes.Buffer) {
 	}
 	w.WriteByte(r.Type)
 	switch r.Type {
-	case AccessListTxType, DynamicFeeTxType, BlobTxType:
+	case AccessListTxType, DynamicFeeTxType, BlobTxType, SetCodeTxType:
 		rlp.Encode(w, data)
 	default:
 		// For unsupported types, write nothing. Since this is for

core/types/transaction.go

@@ -49,6 +49,7 @@ const (
 	AccessListTxType = 0x01
 	DynamicFeeTxType = 0x02
 	BlobTxType       = 0x03
+	SetCodeTxType    = 0x04
 )
 
 // Transaction is an Ethereum transaction.
@@ -206,6 +207,8 @@ func (tx *Transaction) decodeTyped(b []byte) (TxData, error) {
 		inner = new(DynamicFeeTx)
 	case BlobTxType:
 		inner = new(BlobTx)
+	case SetCodeTxType:
+		inner = new(SetCodeTx)
 	default:
 		return nil, ErrTxTypeNotSupported
 	}
@@ -466,6 +469,15 @@ func (tx *Transaction) WithBlobTxSidecar(sideCar *BlobTxSidecar) *Transaction {
 	return cpy
 }
 
+// AuthList returns the authorizations list of the transaction.
+func (tx *Transaction) AuthList() AuthorizationList {
+	setcodetx, ok := tx.inner.(*SetCodeTx)
+	if !ok {
+		return nil
+	}
+	return setcodetx.AuthList
+}
+
 // SetTime sets the decoding time of a transaction. This is used by tests to set
 // arbitrary times and by persistent transaction pools when loading old txs from
 // disk.

core/types/transaction_marshalling.go

@@ -31,22 +31,23 @@ import (
 type txJSON struct {
 	Type hexutil.Uint64 `json:"type"`
 
-	ChainID              *hexutil.Big    `json:"chainId,omitempty"`
+	ChainID              *hexutil.Big       `json:"chainId,omitempty"`
-	Nonce                *hexutil.Uint64 `json:"nonce"`
+	Nonce                *hexutil.Uint64    `json:"nonce"`
-	To                   *common.Address `json:"to"`
+	To                   *common.Address    `json:"to"`
-	Gas                  *hexutil.Uint64 `json:"gas"`
+	Gas                  *hexutil.Uint64    `json:"gas"`
-	GasPrice             *hexutil.Big    `json:"gasPrice"`
+	GasPrice             *hexutil.Big       `json:"gasPrice"`
-	MaxPriorityFeePerGas *hexutil.Big    `json:"maxPriorityFeePerGas"`
+	MaxPriorityFeePerGas *hexutil.Big       `json:"maxPriorityFeePerGas"`
-	MaxFeePerGas         *hexutil.Big    `json:"maxFeePerGas"`
+	MaxFeePerGas         *hexutil.Big       `json:"maxFeePerGas"`
-	MaxFeePerBlobGas     *hexutil.Big    `json:"maxFeePerBlobGas,omitempty"`
+	MaxFeePerBlobGas     *hexutil.Big       `json:"maxFeePerBlobGas,omitempty"`
-	Value                *hexutil.Big    `json:"value"`
+	Value                *hexutil.Big       `json:"value"`
-	Input                *hexutil.Bytes  `json:"input"`
+	Input                *hexutil.Bytes     `json:"input"`
-	AccessList           *AccessList     `json:"accessList,omitempty"`
+	AccessList           *AccessList        `json:"accessList,omitempty"`
-	BlobVersionedHashes  []common.Hash   `json:"blobVersionedHashes,omitempty"`
+	BlobVersionedHashes  []common.Hash      `json:"blobVersionedHashes,omitempty"`
-	V                    *hexutil.Big    `json:"v"`
+	AuthorizationList    *AuthorizationList `json:"authorizationList,omitempty"`
-	R                    *hexutil.Big    `json:"r"`
+	V                    *hexutil.Big       `json:"v"`
-	S                    *hexutil.Big    `json:"s"`
+	R                    *hexutil.Big       `json:"r"`
-	YParity              *hexutil.Uint64 `json:"yParity,omitempty"`
+	S                    *hexutil.Big       `json:"s"`
+	YParity              *hexutil.Uint64    `json:"yParity,omitempty"`
 
 	// Blob transaction sidecar encoding:
 	Blobs       []kzg4844.Blob       `json:"blobs,omitempty"`
@@ -153,6 +154,23 @@ func (tx *Transaction) MarshalJSON() ([]byte, error) {
 			enc.Commitments = itx.Sidecar.Commitments
 			enc.Proofs = itx.Sidecar.Proofs
 		}
+	case *SetCodeTx:
+		enc.ChainID = (*hexutil.Big)(itx.ChainID.ToBig())
+		enc.Nonce = (*hexutil.Uint64)(&itx.Nonce)
+		enc.To = tx.To()
+		enc.Gas = (*hexutil.Uint64)(&itx.Gas)
+		enc.MaxFeePerGas = (*hexutil.Big)(itx.GasFeeCap.ToBig())
+		enc.MaxPriorityFeePerGas = (*hexutil.Big)(itx.GasTipCap.ToBig())
+		enc.Value = (*hexutil.Big)(itx.Value.ToBig())
+		enc.Input = (*hexutil.Bytes)(&itx.Data)
+		enc.AccessList = &itx.AccessList
+		enc.AuthorizationList = &itx.AuthList
+		enc.V = (*hexutil.Big)(itx.V.ToBig())
+		enc.R = (*hexutil.Big)(itx.R.ToBig())
+		enc.S = (*hexutil.Big)(itx.S.ToBig())
+		yparity := itx.V.Uint64()
+		enc.YParity = (*hexutil.Uint64)(&yparity)
+
 	}
 	return json.Marshal(&enc)
 }
@@ -409,6 +427,81 @@ func (tx *Transaction) UnmarshalJSON(input []byte) error {
 			}
 		}
 
+	case SetCodeTxType:
+		var itx SetCodeTx
+		inner = &itx
+		if dec.ChainID == nil {
+			return errors.New("missing required field 'chainId' in transaction")
+		}
+		itx.ChainID = uint256.MustFromBig((*big.Int)(dec.ChainID))
+		if dec.Nonce == nil {
+			return errors.New("missing required field 'nonce' in transaction")
+		}
+		itx.Nonce = uint64(*dec.Nonce)
+		if dec.To == nil {
+			return errors.New("missing required field 'to' in transaction")
+		}
+		itx.To = *dec.To
+		if dec.Gas == nil {
+			return errors.New("missing required field 'gas' for txdata")
+		}
+		itx.Gas = uint64(*dec.Gas)
+		if dec.MaxPriorityFeePerGas == nil {
+			return errors.New("missing required field 'maxPriorityFeePerGas' for txdata")
+		}
+		itx.GasTipCap = uint256.MustFromBig((*big.Int)(dec.MaxPriorityFeePerGas))
+		if dec.MaxFeePerGas == nil {
+			return errors.New("missing required field 'maxFeePerGas' for txdata")
+		}
+		itx.GasFeeCap = uint256.MustFromBig((*big.Int)(dec.MaxFeePerGas))
+		if dec.Value == nil {
+			return errors.New("missing required field 'value' in transaction")
+		}
+		itx.Value = uint256.MustFromBig((*big.Int)(dec.Value))
+		if dec.Input == nil {
+			return errors.New("missing required field 'input' in transaction")
+		}
+		itx.Data = *dec.Input
+		if dec.AccessList != nil {
+			itx.AccessList = *dec.AccessList
+		}
+		if dec.AuthorizationList == nil {
+			return errors.New("missing required field 'authorizationList' in transaction")
+		}
+		itx.AuthList = *dec.AuthorizationList
+
+		// signature R
+		var overflow bool
+		if dec.R == nil {
+			return errors.New("missing required field 'r' in transaction")
+		}
+		itx.R, overflow = uint256.FromBig((*big.Int)(dec.R))
+		if overflow {
+			return errors.New("'r' value overflows uint256")
+		}
+		// signature S
+		if dec.S == nil {
+			return errors.New("missing required field 's' in transaction")
+		}
+		itx.S, overflow = uint256.FromBig((*big.Int)(dec.S))
+		if overflow {
+			return errors.New("'s' value overflows uint256")
+		}
+		// signature V
+		vbig, err := dec.yParityValue()
+		if err != nil {
+			return err
+		}
+		itx.V, overflow = uint256.FromBig(vbig)
+		if overflow {
+			return errors.New("'v' value overflows uint256")
+		}
+		if itx.V.Sign() != 0 || itx.R.Sign() != 0 || itx.S.Sign() != 0 {
+			if err := sanityCheckSignature(vbig, itx.R.ToBig(), itx.S.ToBig(), false); err != nil {
+				return err
+			}
+		}
+
 	default:
 		return ErrTxTypeNotSupported
 	}

core/types/transaction_signing.go

@@ -40,6 +40,8 @@ type sigCache struct {
 func MakeSigner(config *params.ChainConfig, blockNumber *big.Int, blockTime uint64) Signer {
 	var signer Signer
 	switch {
+	case config.IsPrague(blockNumber, blockTime):
+		signer = NewPragueSigner(config.ChainID)
 	case config.IsCancun(blockNumber, blockTime):
 		signer = NewCancunSigner(config.ChainID)
 	case config.IsLondon(blockNumber):
@@ -65,6 +67,9 @@ func MakeSigner(config *params.ChainConfig, blockNumber *big.Int, blockTime uint
 // have the current block number available, use MakeSigner instead.
 func LatestSigner(config *params.ChainConfig) Signer {
 	if config.ChainID != nil {
+		if config.PragueTime != nil {
+			return NewPragueSigner(config.ChainID)
+		}
 		if config.CancunTime != nil {
 			return NewCancunSigner(config.ChainID)
 		}
@@ -92,7 +97,7 @@ func LatestSignerForChainID(chainID *big.Int) Signer {
 	if chainID == nil {
 		return HomesteadSigner{}
 	}
-	return NewCancunSigner(chainID)
+	return NewPragueSigner(chainID)
 }
 
 // SignTx signs the transaction using the given signer and private key.
@@ -168,6 +173,76 @@ type Signer interface {
 	Equal(Signer) bool
 }
 
+type pragueSigner struct{ cancunSigner }
+
+// NewPragueSigner returns a signer that accepts
+// - EIP-7702 set code transactions
+// - EIP-4844 blob transactions
+// - EIP-1559 dynamic fee transactions
+// - EIP-2930 access list transactions,
+// - EIP-155 replay protected transactions, and
+// - legacy Homestead transactions.
+func NewPragueSigner(chainId *big.Int) Signer {
+	return pragueSigner{cancunSigner{londonSigner{eip2930Signer{NewEIP155Signer(chainId)}}}}
+}
+
+func (s pragueSigner) Sender(tx *Transaction) (common.Address, error) {
+	if tx.Type() != SetCodeTxType {
+		return s.cancunSigner.Sender(tx)
+	}
+	V, R, S := tx.RawSignatureValues()
+
+	// Set code txs are defined to use 0 and 1 as their recovery
+	// id, add 27 to become equivalent to unprotected Homestead signatures.
+	V = new(big.Int).Add(V, big.NewInt(27))
+	if tx.ChainId().Cmp(s.chainId) != 0 {
+		return common.Address{}, fmt.Errorf("%w: have %d want %d", ErrInvalidChainId, tx.ChainId(), s.chainId)
+	}
+	return recoverPlain(s.Hash(tx), R, S, V, true)
+}
+
+func (s pragueSigner) Equal(s2 Signer) bool {
+	x, ok := s2.(pragueSigner)
+	return ok && x.chainId.Cmp(s.chainId) == 0
+}
+
+func (s pragueSigner) SignatureValues(tx *Transaction, sig []byte) (R, S, V *big.Int, err error) {
+	txdata, ok := tx.inner.(*SetCodeTx)
+	if !ok {
+		return s.cancunSigner.SignatureValues(tx, sig)
+	}
+	// Check that chain ID of tx matches the signer. We also accept ID zero here,
+	// because it indicates that the chain ID was not specified in the tx.
+	if txdata.ChainID.Sign() != 0 && txdata.ChainID.ToBig().Cmp(s.chainId) != 0 {
+		return nil, nil, nil, fmt.Errorf("%w: have %d want %d", ErrInvalidChainId, txdata.ChainID, s.chainId)
+	}
+	R, S, _ = decodeSignature(sig)
+	V = big.NewInt(int64(sig[64]))
+	return R, S, V, nil
+}
+
+// Hash returns the hash to be signed by the sender.
+// It does not uniquely identify the transaction.
+func (s pragueSigner) Hash(tx *Transaction) common.Hash {
+	if tx.Type() != SetCodeTxType {
+		return s.cancunSigner.Hash(tx)
+	}
+	return prefixedRlpHash(
+		tx.Type(),
+		[]interface{}{
+			s.chainId,
+			tx.Nonce(),
+			tx.GasTipCap(),
+			tx.GasFeeCap(),
+			tx.Gas(),
+			tx.To(),
+			tx.Value(),
+			tx.Data(),
+			tx.AccessList(),
+			tx.AuthList(),
+		})
+}
+
 type cancunSigner struct{ londonSigner }
 
 // NewCancunSigner returns a signer that accepts

core/types/tx_setcode.go

@@ -0,0 +1,256 @@
+package types
+
+import (
+	"bytes"
+	"crypto/ecdsa"
+	"errors"
+	"math/big"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/common/hexutil"
+	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/ethereum/go-ethereum/rlp"
+	"github.com/holiman/uint256"
+)
+
+// DelegationPrefix is used by code to denote the account is delegating to
+// another account.
+var DelegationPrefix = []byte{0xef, 0x01, 0x00}
+
+// ParseDelegation tries to parse the address from a delegation slice.
+func ParseDelegation(b []byte) (common.Address, bool) {
+	if len(b) != 23 || !bytes.HasPrefix(b, DelegationPrefix) {
+		return common.Address{}, false
+	}
+	var addr common.Address
+	copy(addr[:], b[len(DelegationPrefix):])
+	return addr, true
+}
+
+// AddressToDelegation adds the delegation prefix to the specified address.
+func AddressToDelegation(addr common.Address) []byte {
+	return append(DelegationPrefix, addr.Bytes()...)
+}
+
+// SetCodeTx implements the EIP-7702 transaction type which temporarily installs
+// the code at the signer's address.
+type SetCodeTx struct {
+	ChainID    *uint256.Int
+	Nonce      uint64
+	GasTipCap  *uint256.Int // a.k.a. maxPriorityFeePerGas
+	GasFeeCap  *uint256.Int // a.k.a. maxFeePerGas
+	Gas        uint64
+	To         common.Address
+	Value      *uint256.Int
+	Data       []byte
+	AccessList AccessList
+	AuthList   AuthorizationList
+
+	// Signature values
+	V *uint256.Int `json:"v" gencodec:"required"`
+	R *uint256.Int `json:"r" gencodec:"required"`
+	S *uint256.Int `json:"s" gencodec:"required"`
+}
+
+//go:generate go run github.com/fjl/gencodec -type Authorization -field-override authorizationMarshaling -out gen_authorization.go
+
+// Authorization is an authorization from an account to deploy code at it's
+// address.
+type Authorization struct {
+	ChainID *big.Int       `json:"chainId" gencodec:"required"`
+	Address common.Address `json:"address" gencodec:"required"`
+	Nonce   uint64         `json:"nonce" gencodec:"required"`
+	V       *big.Int       `json:"v" gencodec:"required"`
+	R       *big.Int       `json:"r" gencodec:"required"`
+	S       *big.Int       `json:"s" gencodec:"required"`
+}
+
+// field type overrides for gencodec
+type authorizationMarshaling struct {
+	ChainID *hexutil.Big
+	Nonce   hexutil.Uint64
+	V       *hexutil.Big
+	R       *hexutil.Big
+	S       *hexutil.Big
+}
+
+func SignAuth(auth *Authorization, prv *ecdsa.PrivateKey) (*Authorization, error) {
+	h := prefixedRlpHash(
+		0x05,
+		[]interface{}{
+			auth.ChainID,
+			auth.Address,
+			auth.Nonce,
+		})
+
+	sig, err := crypto.Sign(h[:], prv)
+	if err != nil {
+		return nil, err
+	}
+	return auth.WithSignature(sig), nil
+}
+
+func (a *Authorization) WithSignature(sig []byte) *Authorization {
+	r, s, _ := decodeSignature(sig)
+	v := big.NewInt(int64(sig[64]))
+	cpy := Authorization{
+		ChainID: a.ChainID,
+		Address: a.Address,
+		Nonce:   a.Nonce,
+		V:       v,
+		R:       r,
+		S:       s,
+	}
+	return &cpy
+}
+
+type AuthorizationList []*Authorization
+
+func (a Authorization) Authority() (common.Address, error) {
+	sighash := prefixedRlpHash(
+		0x05,
+		[]interface{}{
+			a.ChainID,
+			a.Address,
+			a.Nonce,
+		})
+
+	v := byte(a.V.Uint64())
+	if !crypto.ValidateSignatureValues(v, a.R, a.S, true) {
+		return common.Address{}, ErrInvalidSig
+	}
+	// encode the signature in uncompressed format
+	r, s := a.R.Bytes(), a.S.Bytes()
+	sig := make([]byte, crypto.SignatureLength)
+	copy(sig[32-len(r):32], r)
+	copy(sig[64-len(s):64], s)
+	sig[64] = v
+	// recover the public key from the signature
+	pub, err := crypto.Ecrecover(sighash[:], sig)
+	if err != nil {
+		return common.Address{}, err
+	}
+	if len(pub) == 0 || pub[0] != 4 {
+		return common.Address{}, errors.New("invalid public key")
+	}
+	var addr common.Address
+	copy(addr[:], crypto.Keccak256(pub[1:])[12:])
+	return addr, nil
+}
+
+type SetCodeDelegation struct {
+	From   common.Address
+	Nonce  uint64
+	Target common.Address
+}
+
+/*
+func (a AuthorizationList) WithAddress() []AuthorizationTuple {
+	var (
+		list = make([]AuthorizationTuple, len(a))
+		sha  = hasherPool.Get().(crypto.KeccakState)
+		h    = common.Hash{}
+	)
+	defer hasherPool.Put(sha)
+	for i, auth := range a {
+		sha.Reset()
+		sha.Write([]byte{0x05})
+		sha.Write(auth.Code)
+		sha.Read(h[:])
+		addr, err := recoverPlain(h, auth.R, auth.S, auth.V, false)
+		if err != nil {
+			continue
+		}
+		list[i].Address = addr
+		copy(list[i].Code, auth.Code)
+	}
+	return list
+}
+*/
+
+// copy creates a deep copy of the transaction data and initializes all fields.
+func (tx *SetCodeTx) copy() TxData {
+	cpy := &SetCodeTx{
+		Nonce: tx.Nonce,
+		To:    tx.To,
+		Data:  common.CopyBytes(tx.Data),
+		Gas:   tx.Gas,
+		// These are copied below.
+		AccessList: make(AccessList, len(tx.AccessList)),
+		AuthList:   make(AuthorizationList, len(tx.AuthList)),
+		Value:      new(uint256.Int),
+		ChainID:    new(uint256.Int),
+		GasTipCap:  new(uint256.Int),
+		GasFeeCap:  new(uint256.Int),
+		V:          new(uint256.Int),
+		R:          new(uint256.Int),
+		S:          new(uint256.Int),
+	}
+	copy(cpy.AccessList, tx.AccessList)
+	copy(cpy.AuthList, tx.AuthList)
+	if tx.Value != nil {
+		cpy.Value.Set(tx.Value)
+	}
+	if tx.ChainID != nil {
+		cpy.ChainID.Set(tx.ChainID)
+	}
+	if tx.GasTipCap != nil {
+		cpy.GasTipCap.Set(tx.GasTipCap)
+	}
+	if tx.GasFeeCap != nil {
+		cpy.GasFeeCap.Set(tx.GasFeeCap)
+	}
+	if tx.V != nil {
+		cpy.V.Set(tx.V)
+	}
+	if tx.R != nil {
+		cpy.R.Set(tx.R)
+	}
+	if tx.S != nil {
+		cpy.S.Set(tx.S)
+	}
+	return cpy
+}
+
+// accessors for innerTx.
+func (tx *SetCodeTx) txType() byte           { return SetCodeTxType }
+func (tx *SetCodeTx) chainID() *big.Int      { return tx.ChainID.ToBig() }
+func (tx *SetCodeTx) accessList() AccessList { return tx.AccessList }
+func (tx *SetCodeTx) data() []byte           { return tx.Data }
+func (tx *SetCodeTx) gas() uint64            { return tx.Gas }
+func (tx *SetCodeTx) gasFeeCap() *big.Int    { return tx.GasFeeCap.ToBig() }
+func (tx *SetCodeTx) gasTipCap() *big.Int    { return tx.GasTipCap.ToBig() }
+func (tx *SetCodeTx) gasPrice() *big.Int     { return tx.GasFeeCap.ToBig() }
+func (tx *SetCodeTx) value() *big.Int        { return tx.Value.ToBig() }
+func (tx *SetCodeTx) nonce() uint64          { return tx.Nonce }
+func (tx *SetCodeTx) to() *common.Address    { tmp := tx.To; return &tmp }
+
+func (tx *SetCodeTx) effectiveGasPrice(dst *big.Int, baseFee *big.Int) *big.Int {
+	if baseFee == nil {
+		return dst.Set(tx.GasFeeCap.ToBig())
+	}
+	tip := dst.Sub(tx.GasFeeCap.ToBig(), baseFee)
+	if tip.Cmp(tx.GasTipCap.ToBig()) > 0 {
+		tip.Set(tx.GasTipCap.ToBig())
+	}
+	return tip.Add(tip, baseFee)
+}
+
+func (tx *SetCodeTx) rawSignatureValues() (v, r, s *big.Int) {
+	return tx.V.ToBig(), tx.R.ToBig(), tx.S.ToBig()
+}
+
+func (tx *SetCodeTx) setSignatureValues(chainID, v, r, s *big.Int) {
+	tx.ChainID.SetFromBig(chainID)
+	tx.V.SetFromBig(v)
+	tx.R.SetFromBig(r)
+	tx.S.SetFromBig(s)
+}
+
+func (tx *SetCodeTx) encode(b *bytes.Buffer) error {
+	return rlp.Encode(b, tx)
+}
+
+func (tx *SetCodeTx) decode(input []byte) error {
+	return rlp.DecodeBytes(input, tx)
+}

core/types/tx_setcode_test.go

@@ -0,0 +1,15 @@
+package types
+
+import (
+	"testing"
+
+	"github.com/ethereum/go-ethereum/common"
+)
+
+func TestParseDelegation(t *testing.T) {
+	addr := common.Address{0x42}
+	d := append(DelegationPrefix, addr.Bytes()...)
+	if got, ok := ParseDelegation(d); !ok || addr != got {
+		t.Fatalf("failed to parse, got %s %v", got.Hex(), ok)
+	}
+}

core/vm/eips.go

@@ -40,6 +40,7 @@ var activators = map[int]func(*JumpTable){
 	1344: enable1344,
 	1153: enable1153,
 	4762: enable4762,
+	7702: enable7702,
 }
 
 // EnableEIP enables the given EIP on the config.
@@ -533,3 +534,26 @@ func enable4762(jt *JumpTable) {
 		}
 	}
 }
+
+func enable7702(jt *JumpTable) {
+	jt[EXTCODECOPY].constantGas = params.WarmStorageReadCostEIP2929
+	jt[EXTCODECOPY].dynamicGas = gasExtCodeCopyEIP7702
+
+	jt[EXTCODESIZE].constantGas = params.WarmStorageReadCostEIP2929
+	jt[EXTCODESIZE].dynamicGas = gasEip7702CodeCheck
+
+	jt[EXTCODEHASH].constantGas = params.WarmStorageReadCostEIP2929
+	jt[EXTCODEHASH].dynamicGas = gasEip7702CodeCheck
+
+	jt[CALL].constantGas = params.WarmStorageReadCostEIP2929
+	jt[CALL].dynamicGas = gasCallEIP7702
+
+	jt[CALLCODE].constantGas = params.WarmStorageReadCostEIP2929
+	jt[CALLCODE].dynamicGas = gasCallCodeEIP7702
+
+	jt[STATICCALL].constantGas = params.WarmStorageReadCostEIP2929
+	jt[STATICCALL].dynamicGas = gasStaticCallEIP7702
+
+	jt[DELEGATECALL].constantGas = params.WarmStorageReadCostEIP2929
+	jt[DELEGATECALL].dynamicGas = gasDelegateCallEIP7702
+}

core/vm/evm.go

@@ -212,7 +212,7 @@ func (evm *EVM) Call(caller ContractRef, addr common.Address, input []byte, gas
 	} else {
 		// Initialise a new contract and set the code that is to be used by the EVM.
 		// The contract is a scoped environment for this execution context only.
-		code := evm.StateDB.GetCode(addr)
+		code := evm.StateDB.ResolveCode(addr)
 		if witness := evm.StateDB.Witness(); witness != nil {
 			witness.AddCode(code)
 		}
@@ -223,7 +223,7 @@ func (evm *EVM) Call(caller ContractRef, addr common.Address, input []byte, gas
 			// If the account has no code, we can abort here
 			// The depth-check is already done, and precompiles handled above
 			contract := NewContract(caller, AccountRef(addrCopy), value, gas)
-			contract.SetCallCode(&addrCopy, evm.StateDB.GetCodeHash(addrCopy), code)
+			contract.SetCallCode(&addrCopy, evm.StateDB.ResolveCodeHash(addrCopy), code)
 			ret, err = evm.interpreter.Run(contract, input, false)
 			gas = contract.Gas
 		}
@@ -284,9 +284,9 @@ func (evm *EVM) CallCode(caller ContractRef, addr common.Address, input []byte,
 		// The contract is a scoped environment for this execution context only.
 		contract := NewContract(caller, AccountRef(caller.Address()), value, gas)
 		if witness := evm.StateDB.Witness(); witness != nil {
-			witness.AddCode(evm.StateDB.GetCode(addrCopy))
+			witness.AddCode(evm.StateDB.ResolveCode(addrCopy))
 		}
-		contract.SetCallCode(&addrCopy, evm.StateDB.GetCodeHash(addrCopy), evm.StateDB.GetCode(addrCopy))
+		contract.SetCallCode(&addrCopy, evm.StateDB.ResolveCodeHash(addrCopy), evm.StateDB.ResolveCode(addrCopy))
 		ret, err = evm.interpreter.Run(contract, input, false)
 		gas = contract.Gas
 	}
@@ -334,9 +334,9 @@ func (evm *EVM) DelegateCall(caller ContractRef, addr common.Address, input []by
 		// Initialise a new contract and make initialise the delegate values
 		contract := NewContract(caller, AccountRef(caller.Address()), nil, gas).AsDelegate()
 		if witness := evm.StateDB.Witness(); witness != nil {
-			witness.AddCode(evm.StateDB.GetCode(addrCopy))
+			witness.AddCode(evm.StateDB.ResolveCode(addrCopy))
 		}
-		contract.SetCallCode(&addrCopy, evm.StateDB.GetCodeHash(addrCopy), evm.StateDB.GetCode(addrCopy))
+		contract.SetCallCode(&addrCopy, evm.StateDB.ResolveCodeHash(addrCopy), evm.StateDB.ResolveCode(addrCopy))
 		ret, err = evm.interpreter.Run(contract, input, false)
 		gas = contract.Gas
 	}
@@ -392,9 +392,9 @@ func (evm *EVM) StaticCall(caller ContractRef, addr common.Address, input []byte
 		// The contract is a scoped environment for this execution context only.
 		contract := NewContract(caller, AccountRef(addrCopy), new(uint256.Int), gas)
 		if witness := evm.StateDB.Witness(); witness != nil {
-			witness.AddCode(evm.StateDB.GetCode(addrCopy))
+			witness.AddCode(evm.StateDB.ResolveCode(addrCopy))
 		}
-		contract.SetCallCode(&addrCopy, evm.StateDB.GetCodeHash(addrCopy), evm.StateDB.GetCode(addrCopy))
+		contract.SetCallCode(&addrCopy, evm.StateDB.ResolveCodeHash(addrCopy), evm.StateDB.ResolveCode(addrCopy))
 		// When an error was returned by the EVM or when setting the creation code
 		// above we revert to the snapshot and consume any gas remaining. Additionally
 		// when we're in Homestead this also counts for code storage gas errors.
@@ -458,7 +458,7 @@ func (evm *EVM) create(caller ContractRef, codeAndHash *codeAndHash, gas uint64,
 	// - the nonce is non-zero
 	// - the code is non-empty
 	// - the storage is non-empty
-	contractHash := evm.StateDB.GetCodeHash(address)
+	contractHash := evm.StateDB.ResolveCodeHash(address)
 	storageRoot := evm.StateDB.GetStorageRoot(address)
 	if evm.StateDB.GetNonce(address) != 0 ||
 		(contractHash != (common.Hash{}) && contractHash != types.EmptyCodeHash) || // non-empty code

core/vm/instructions.go

@@ -342,9 +342,9 @@ func opExtCodeSize(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext)
 	slot := scope.Stack.peek()
 	address := slot.Bytes20()
 	if witness := interpreter.evm.StateDB.Witness(); witness != nil {
-		witness.AddCode(interpreter.evm.StateDB.GetCode(address))
+		witness.AddCode(interpreter.evm.StateDB.ResolveCode(address))
 	}
-	slot.SetUint64(uint64(interpreter.evm.StateDB.GetCodeSize(slot.Bytes20())))
+	slot.SetUint64(uint64(len(interpreter.evm.StateDB.ResolveCode(slot.Bytes20()))))
 	return nil, nil
 }
 
@@ -382,7 +382,7 @@ func opExtCodeCopy(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext)
 		uint64CodeOffset = math.MaxUint64
 	}
 	addr := common.Address(a.Bytes20())
-	code := interpreter.evm.StateDB.GetCode(addr)
+	code := interpreter.evm.StateDB.ResolveCode(addr)
 	if witness := interpreter.evm.StateDB.Witness(); witness != nil {
 		witness.AddCode(code)
 	}
@@ -394,7 +394,7 @@ func opExtCodeCopy(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext)
 
 // opExtCodeHash returns the code hash of a specified account.
 // There are several cases when the function is called, while we can relay everything
-// to `state.GetCodeHash` function to ensure the correctness.
+// to `state.ResolveCodeHash` function to ensure the correctness.
 //
 //  1. Caller tries to get the code hash of a normal contract account, state
 //     should return the relative code hash and set it as the result.
@@ -408,6 +408,9 @@ func opExtCodeCopy(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext)
 //  4. Caller tries to get the code hash of a precompiled account, the result should be
 //     zero or emptyCodeHash.
 //
+//  4. Caller tries to get the code hash of a delegated account, the result should be
+//     equal the result of calling extcodehash on the account directly.
+//
 // It is worth noting that in order to avoid unnecessary create and clean, all precompile
 // accounts on mainnet have been transferred 1 wei, so the return here should be
 // emptyCodeHash. If the precompile account is not transferred any amount on a private or
@@ -424,7 +427,7 @@ func opExtCodeHash(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext)
 	if interpreter.evm.StateDB.Empty(address) {
 		slot.Clear()
 	} else {
-		slot.SetBytes(interpreter.evm.StateDB.GetCodeHash(address).Bytes())
+		slot.SetBytes(interpreter.evm.StateDB.ResolveCodeHash(address).Bytes())
 	}
 	return nil, nil
 }

core/vm/interface.go

@@ -45,6 +45,9 @@ type StateDB interface {
 	SetCode(common.Address, []byte)
 	GetCodeSize(common.Address) int
 
+	ResolveCodeHash(common.Address) common.Hash
+	ResolveCode(common.Address) []byte
+
 	AddRefund(uint64)
 	SubRefund(uint64)
 	GetRefund() uint64

core/vm/jump_table.go

@@ -94,6 +94,7 @@ func newCancunInstructionSet() JumpTable {
 	enable1153(&instructionSet) // EIP-1153 "Transient Storage"
 	enable5656(&instructionSet) // EIP-5656 (MCOPY opcode)
 	enable6780(&instructionSet) // EIP-6780 SELFDESTRUCT only in same transaction
+	enable7702(&instructionSet)
 	return validate(instructionSet)
 }
 

core/vm/operations_acl.go

@@ -22,6 +22,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/math"
 	"github.com/ethereum/go-ethereum/core/tracing"
+	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/params"
 )
 
@@ -248,3 +249,122 @@ func makeSelfdestructGasFn(refundsEnabled bool) gasFunc {
 	}
 	return gasFunc
 }
+
+var (
+	gasCallEIP7702         = makeCallVariantGasCallEIP7702(gasCall)
+	gasDelegateCallEIP7702 = makeCallVariantGasCallEIP7702(gasDelegateCall)
+	gasStaticCallEIP7702   = makeCallVariantGasCallEIP7702(gasStaticCall)
+	gasCallCodeEIP7702     = makeCallVariantGasCallEIP7702(gasCallCode)
+)
+
+func makeCallVariantGasCallEIP7702(oldCalculator gasFunc) gasFunc {
+	return func(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
+		addr := common.Address(stack.Back(1).Bytes20())
+		// Check slot presence in the access list
+		warmAccess := evm.StateDB.AddressInAccessList(addr)
+		// The WarmStorageReadCostEIP2929 (100) is already deducted in the form of a constant cost, so
+		// the cost to charge for cold access, if any, is Cold - Warm
+		coldCost := params.ColdAccountAccessCostEIP2929 - params.WarmStorageReadCostEIP2929
+		if !warmAccess {
+			evm.StateDB.AddAddressToAccessList(addr)
+			// Charge the remaining difference here already, to correctly calculate available
+			// gas for call
+			if !contract.UseGas(coldCost, evm.Config.Tracer, tracing.GasChangeCallStorageColdAccess) {
+				return 0, ErrOutOfGas
+			}
+		}
+
+		// Check if code is a delegation and if so, charge for resolution.
+		if addr, ok := types.ParseDelegation(evm.StateDB.GetCode(addr)); ok {
+			var cost uint64
+			if evm.StateDB.AddressInAccessList(addr) {
+				cost += params.WarmStorageReadCostEIP2929
+			} else {
+				evm.StateDB.AddAddressToAccessList(addr)
+				cost += params.ColdAccountAccessCostEIP2929
+			}
+			if !contract.UseGas(cost, evm.Config.Tracer, tracing.GasChangeCallStorageColdAccess) {
+				return 0, ErrOutOfGas
+			}
+			coldCost += cost
+		}
+		// Now call the old calculator, which takes into account
+		// - create new account
+		// - transfer value
+		// - memory expansion
+		// - 63/64ths rule
+		gas, err := oldCalculator(evm, contract, stack, mem, memorySize)
+		if warmAccess || err != nil {
+			return gas, err
+		}
+		// In case of a cold access, we temporarily add the cold charge back, and also
+		// add it to the returned gas. By adding it to the return, it will be charged
+		// outside of this function, as part of the dynamic gas, and that will make it
+		// also become correctly reported to tracers.
+		contract.Gas += coldCost
+
+		var overflow bool
+		if gas, overflow = math.SafeAdd(gas, coldCost); overflow {
+			return 0, ErrGasUintOverflow
+		}
+		return gas, nil
+	}
+}
+
+func gasEip7702CodeCheck(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
+	addr := common.Address(stack.peek().Bytes20())
+	cost := uint64(0)
+	// fmt.Println("checking", addr, evm.StateDB.AddressInAccessList(addr))
+	// Check slot presence in the access list
+	if !evm.StateDB.AddressInAccessList(addr) {
+		// If the caller cannot afford the cost, this change will be rolled back
+		evm.StateDB.AddAddressToAccessList(addr)
+		// The warm storage read cost is already charged as constantGas
+		cost = params.ColdAccountAccessCostEIP2929 - params.WarmStorageReadCostEIP2929
+	}
+	// Check if code is a delegation and if so, charge for resolution
+	if addr, ok := types.ParseDelegation(evm.StateDB.GetCode(addr)); ok {
+		if evm.StateDB.AddressInAccessList(addr) {
+			cost += params.WarmStorageReadCostEIP2929
+		} else {
+			// fmt.Println("adding ", addr, "to acl")
+			evm.StateDB.AddAddressToAccessList(addr)
+			cost += params.ColdAccountAccessCostEIP2929
+		}
+	}
+	// fmt.Println("cost is", cost)
+	return cost, nil
+}
+
+func gasExtCodeCopyEIP7702(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
+	// memory expansion first (dynamic part of pre-2929 implementation)
+	gas, err := gasExtCodeCopy(evm, contract, stack, mem, memorySize)
+	if err != nil {
+		return 0, err
+	}
+	addr := common.Address(stack.peek().Bytes20())
+	// Check slot presence in the access list
+	if !evm.StateDB.AddressInAccessList(addr) {
+		evm.StateDB.AddAddressToAccessList(addr)
+		var overflow bool
+		// We charge (cold-warm), since 'warm' is already charged as constantGas
+		if gas, overflow = math.SafeAdd(gas, params.ColdAccountAccessCostEIP2929-params.WarmStorageReadCostEIP2929); overflow {
+			return 0, ErrGasUintOverflow
+		}
+	}
+	// Check if code is a delegation and if so, charge for resolution
+	if addr, ok := types.ParseDelegation(evm.StateDB.GetCode(addr)); ok {
+		var overflow bool
+		if evm.StateDB.AddressInAccessList(addr) {
+			if gas, overflow = math.SafeAdd(gas, params.WarmStorageReadCostEIP2929); overflow {
+				return 0, ErrGasUintOverflow
+			}
+		} else {
+			evm.StateDB.AddAddressToAccessList(addr)
+			if gas, overflow = math.SafeAdd(gas, params.ColdAccountAccessCostEIP2929); overflow {
+				return 0, ErrGasUintOverflow
+			}
+		}
+	}
+	return gas, nil
+}

internal/ethapi/api.go

@@ -1452,28 +1452,29 @@ func (api *BlockChainAPI) rpcMarshalBlock(ctx context.Context, b *types.Block, i
 
 // RPCTransaction represents a transaction that will serialize to the RPC representation of a transaction
 type RPCTransaction struct {
-	BlockHash           *common.Hash      `json:"blockHash"`
+	BlockHash           *common.Hash            `json:"blockHash"`
-	BlockNumber         *hexutil.Big      `json:"blockNumber"`
+	BlockNumber         *hexutil.Big            `json:"blockNumber"`
-	From                common.Address    `json:"from"`
+	From                common.Address          `json:"from"`
-	Gas                 hexutil.Uint64    `json:"gas"`
+	Gas                 hexutil.Uint64          `json:"gas"`
-	GasPrice            *hexutil.Big      `json:"gasPrice"`
+	GasPrice            *hexutil.Big            `json:"gasPrice"`
-	GasFeeCap           *hexutil.Big      `json:"maxFeePerGas,omitempty"`
+	GasFeeCap           *hexutil.Big            `json:"maxFeePerGas,omitempty"`
-	GasTipCap           *hexutil.Big      `json:"maxPriorityFeePerGas,omitempty"`
+	GasTipCap           *hexutil.Big            `json:"maxPriorityFeePerGas,omitempty"`
-	MaxFeePerBlobGas    *hexutil.Big      `json:"maxFeePerBlobGas,omitempty"`
+	MaxFeePerBlobGas    *hexutil.Big            `json:"maxFeePerBlobGas,omitempty"`
-	Hash                common.Hash       `json:"hash"`
+	Hash                common.Hash             `json:"hash"`
-	Input               hexutil.Bytes     `json:"input"`
+	Input               hexutil.Bytes           `json:"input"`
-	Nonce               hexutil.Uint64    `json:"nonce"`
+	Nonce               hexutil.Uint64          `json:"nonce"`
-	To                  *common.Address   `json:"to"`
+	To                  *common.Address         `json:"to"`
-	TransactionIndex    *hexutil.Uint64   `json:"transactionIndex"`
+	TransactionIndex    *hexutil.Uint64         `json:"transactionIndex"`
-	Value               *hexutil.Big      `json:"value"`
+	Value               *hexutil.Big            `json:"value"`
-	Type                hexutil.Uint64    `json:"type"`
+	Type                hexutil.Uint64          `json:"type"`
-	Accesses            *types.AccessList `json:"accessList,omitempty"`
+	Accesses            *types.AccessList       `json:"accessList,omitempty"`
-	ChainID             *hexutil.Big      `json:"chainId,omitempty"`
+	ChainID             *hexutil.Big            `json:"chainId,omitempty"`
-	BlobVersionedHashes []common.Hash     `json:"blobVersionedHashes,omitempty"`
+	BlobVersionedHashes []common.Hash           `json:"blobVersionedHashes,omitempty"`
-	V                   *hexutil.Big      `json:"v"`
+	AuthorizationList   types.AuthorizationList `json:"authorizationList,omitempty"`
-	R                   *hexutil.Big      `json:"r"`
+	V                   *hexutil.Big            `json:"v"`
-	S                   *hexutil.Big      `json:"s"`
+	R                   *hexutil.Big            `json:"r"`
-	YParity             *hexutil.Uint64   `json:"yParity,omitempty"`
+	S                   *hexutil.Big            `json:"s"`
+	YParity             *hexutil.Uint64         `json:"yParity,omitempty"`
 }
 
 // newRPCTransaction returns a transaction that will serialize to the RPC
@@ -1548,6 +1549,24 @@ func newRPCTransaction(tx *types.Transaction, blockHash common.Hash, blockNumber
 		}
 		result.MaxFeePerBlobGas = (*hexutil.Big)(tx.BlobGasFeeCap())
 		result.BlobVersionedHashes = tx.BlobHashes()
+
+	case types.SetCodeTxType:
+		al := tx.AccessList()
+		yparity := hexutil.Uint64(v.Sign())
+		result.Accesses = &al
+		result.ChainID = (*hexutil.Big)(tx.ChainId())
+		result.YParity = &yparity
+		result.GasFeeCap = (*hexutil.Big)(tx.GasFeeCap())
+		result.GasTipCap = (*hexutil.Big)(tx.GasTipCap())
+		// if the transaction has been mined, compute the effective gas price
+		if baseFee != nil && blockHash != (common.Hash{}) {
+			result.GasPrice = (*hexutil.Big)(effectiveGasPrice(tx, baseFee))
+		} else {
+			result.GasPrice = (*hexutil.Big)(tx.GasFeeCap())
+		}
+		result.MaxFeePerBlobGas = (*hexutil.Big)(tx.BlobGasFeeCap())
+		result.BlobVersionedHashes = tx.BlobHashes()
+		result.AuthorizationList = tx.AuthList()
 	}
 	return result
 }

params/protocol_params.go

@@ -94,6 +94,7 @@ const (
 	TxDataNonZeroGasEIP2028   uint64 = 16   // Per byte of non zero data attached to a transaction after EIP 2028 (part in Istanbul)
 	TxAccessListAddressGas    uint64 = 2400 // Per address specified in EIP 2930 access list
 	TxAccessListStorageKeyGas uint64 = 1900 // Per storage key specified in EIP 2930 access list
+	TxAuthTupleGas            uint64 = 2500 // Per auth tuple code specified in EIP-7702
 
 	// These have been changed during the course of the chain
 	CallGasFrontier              uint64 = 40  // Once per CALL operation & message call transaction.

tests/gen_stauthorization.go

@@ -0,0 +1,74 @@
+// Code generated by github.com/fjl/gencodec. DO NOT EDIT.
+
+package tests
+
+import (
+	"encoding/json"
+	"errors"
+	"math/big"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/common/math"
+)
+
+var _ = (*stAuthorizationMarshaling)(nil)
+
+// MarshalJSON marshals as JSON.
+func (s stAuthorization) MarshalJSON() ([]byte, error) {
+	type stAuthorization struct {
+		ChainID *math.HexOrDecimal256
+		Address common.Address        `json:"address" gencodec:"required"`
+		Nonce   math.HexOrDecimal64   `json:"nonce" gencodec:"required"`
+		V       *math.HexOrDecimal256 `json:"v" gencodec:"required"`
+		R       *math.HexOrDecimal256 `json:"r" gencodec:"required"`
+		S       *math.HexOrDecimal256 `json:"s" gencodec:"required"`
+	}
+	var enc stAuthorization
+	enc.ChainID = (*math.HexOrDecimal256)(s.ChainID)
+	enc.Address = s.Address
+	enc.Nonce = math.HexOrDecimal64(s.Nonce)
+	enc.V = (*math.HexOrDecimal256)(s.V)
+	enc.R = (*math.HexOrDecimal256)(s.R)
+	enc.S = (*math.HexOrDecimal256)(s.S)
+	return json.Marshal(&enc)
+}
+
+// UnmarshalJSON unmarshals from JSON.
+func (s *stAuthorization) UnmarshalJSON(input []byte) error {
+	type stAuthorization struct {
+		ChainID *math.HexOrDecimal256
+		Address *common.Address       `json:"address" gencodec:"required"`
+		Nonce   *math.HexOrDecimal64  `json:"nonce" gencodec:"required"`
+		V       *math.HexOrDecimal256 `json:"v" gencodec:"required"`
+		R       *math.HexOrDecimal256 `json:"r" gencodec:"required"`
+		S       *math.HexOrDecimal256 `json:"s" gencodec:"required"`
+	}
+	var dec stAuthorization
+	if err := json.Unmarshal(input, &dec); err != nil {
+		return err
+	}
+	if dec.ChainID != nil {
+		s.ChainID = (*big.Int)(dec.ChainID)
+	}
+	if dec.Address == nil {
+		return errors.New("missing required field 'address' for stAuthorization")
+	}
+	s.Address = *dec.Address
+	if dec.Nonce == nil {
+		return errors.New("missing required field 'nonce' for stAuthorization")
+	}
+	s.Nonce = uint64(*dec.Nonce)
+	if dec.V == nil {
+		return errors.New("missing required field 'v' for stAuthorization")
+	}
+	s.V = (*big.Int)(dec.V)
+	if dec.R == nil {
+		return errors.New("missing required field 'r' for stAuthorization")
+	}
+	s.R = (*big.Int)(dec.R)
+	if dec.S == nil {
+		return errors.New("missing required field 's' for stAuthorization")
+	}
+	s.S = (*big.Int)(dec.S)
+	return nil
+}

tests/gen_sttransaction.go

@@ -30,6 +30,7 @@ func (s stTransaction) MarshalJSON() ([]byte, error) {
 		Sender               *common.Address       `json:"sender"`
 		BlobVersionedHashes  []common.Hash         `json:"blobVersionedHashes,omitempty"`
 		BlobGasFeeCap        *math.HexOrDecimal256 `json:"maxFeePerBlobGas,omitempty"`
+		AuthorizationList    []*stAuthorization    `json:"authorizationList,omitempty"`
 	}
 	var enc stTransaction
 	enc.GasPrice = (*math.HexOrDecimal256)(s.GasPrice)
@@ -50,6 +51,7 @@ func (s stTransaction) MarshalJSON() ([]byte, error) {
 	enc.Sender = s.Sender
 	enc.BlobVersionedHashes = s.BlobVersionedHashes
 	enc.BlobGasFeeCap = (*math.HexOrDecimal256)(s.BlobGasFeeCap)
+	enc.AuthorizationList = s.AuthorizationList
 	return json.Marshal(&enc)
 }
 
@@ -69,6 +71,7 @@ func (s *stTransaction) UnmarshalJSON(input []byte) error {
 		Sender               *common.Address       `json:"sender"`
 		BlobVersionedHashes  []common.Hash         `json:"blobVersionedHashes,omitempty"`
 		BlobGasFeeCap        *math.HexOrDecimal256 `json:"maxFeePerBlobGas,omitempty"`
+		AuthorizationList    []*stAuthorization    `json:"authorizationList,omitempty"`
 	}
 	var dec stTransaction
 	if err := json.Unmarshal(input, &dec); err != nil {
@@ -116,5 +119,8 @@ func (s *stTransaction) UnmarshalJSON(input []byte) error {
 	if dec.BlobGasFeeCap != nil {
 		s.BlobGasFeeCap = (*big.Int)(dec.BlobGasFeeCap)
 	}
+	if dec.AuthorizationList != nil {
+		s.AuthorizationList = dec.AuthorizationList
+	}
 	return nil
 }

tests/state_test.go

@@ -96,6 +96,7 @@ func TestExecutionSpecState(t *testing.T) {
 		t.Skipf("directory %s does not exist", executionSpecStateTestDir)
 	}
 	st := new(testMatcher)
+	st.runonly("eip7702")
 
 	st.walk(t, executionSpecStateTestDir, func(t *testing.T, name string, test *StateTest) {
 		execStateTest(t, st, test)

tests/state_test_util.go

@@ -123,6 +123,7 @@ type stTransaction struct {
 	Sender               *common.Address     `json:"sender"`
 	BlobVersionedHashes  []common.Hash       `json:"blobVersionedHashes,omitempty"`
 	BlobGasFeeCap        *big.Int            `json:"maxFeePerBlobGas,omitempty"`
+	AuthorizationList    []*stAuthorization  `json:"authorizationList,omitempty"`
 }
 
 type stTransactionMarshaling struct {
@@ -135,6 +136,28 @@ type stTransactionMarshaling struct {
 	BlobGasFeeCap        *math.HexOrDecimal256
 }
 
+//go:generate go run github.com/fjl/gencodec -type stAuthorization -field-override stAuthorizationMarshaling -out gen_stauthorization.go
+
+// Authorization is an authorization from an account to deploy code at it's
+// address.
+type stAuthorization struct {
+	ChainID *big.Int
+	Address common.Address `json:"address" gencodec:"required"`
+	Nonce   uint64         `json:"nonce" gencodec:"required"`
+	V       *big.Int       `json:"v" gencodec:"required"`
+	R       *big.Int       `json:"r" gencodec:"required"`
+	S       *big.Int       `json:"s" gencodec:"required"`
+}
+
+// field type overrides for gencodec
+type stAuthorizationMarshaling struct {
+	ChainID *math.HexOrDecimal256
+	Nonce   math.HexOrDecimal64
+	V       *math.HexOrDecimal256
+	R       *math.HexOrDecimal256
+	S       *math.HexOrDecimal256
+}
+
 // GetChainConfig takes a fork definition and returns a chain config.
 // The fork definition can be
 // - a plain forkname, e.g. `Byzantium`,
@@ -417,6 +440,24 @@ func (tx *stTransaction) toMessage(ps stPostState, baseFee *big.Int) (*core.Mess
 	if gasPrice == nil {
 		return nil, errors.New("no gas price provided")
 	}
+	var authList types.AuthorizationList
+	if tx.AuthorizationList != nil {
+		authList = make(types.AuthorizationList, 0)
+		for _, auth := range tx.AuthorizationList {
+			chainID := auth.ChainID
+			if chainID == nil {
+				chainID = big.NewInt(0)
+			}
+			authList = append(authList, &types.Authorization{
+				ChainID: chainID,
+				Address: auth.Address,
+				Nonce:   auth.Nonce,
+				V:       auth.V,
+				R:       auth.R,
+				S:       auth.S,
+			})
+		}
+	}
 
 	msg := &core.Message{
 		From:          from,
@@ -431,6 +472,7 @@ func (tx *stTransaction) toMessage(ps stPostState, baseFee *big.Int) (*core.Mess
 		AccessList:    accessList,
 		BlobHashes:    tx.BlobVersionedHashes,
 		BlobGasFeeCap: tx.BlobGasFeeCap,
+		AuthList:      authList,
 	}
 	return msg, nil
 }

tests/transaction_test_util.go

@@ -59,7 +59,7 @@ func (tt *TransactionTest) Run(config *params.ChainConfig) error {
 			return nil, nil, err
 		}
 		// Intrinsic gas
-		requiredGas, err := core.IntrinsicGas(tx.Data(), tx.AccessList(), tx.To() == nil, isHomestead, isIstanbul, false)
+		requiredGas, err := core.IntrinsicGas(tx.Data(), tx.AccessList(), tx.AuthList(), tx.To() == nil, isHomestead, isIstanbul, false)
 		if err != nil {
 			return nil, nil, err
 		}