all: implement EIP-7702

accounts/abi/bind/backends/simulated.go

@@ -800,17 +800,18 @@ type callMsg struct {
 	ethereum.CallMsg
 }
 
-func (m callMsg) From() common.Address         { return m.CallMsg.From }
-func (m callMsg) Nonce() uint64                { return 0 }
-func (m callMsg) IsFake() bool                 { return true }
-func (m callMsg) To() *common.Address          { return m.CallMsg.To }
-func (m callMsg) GasPrice() *big.Int           { return m.CallMsg.GasPrice }
-func (m callMsg) GasFeeCap() *big.Int          { return m.CallMsg.GasFeeCap }
-func (m callMsg) GasTipCap() *big.Int          { return m.CallMsg.GasTipCap }
-func (m callMsg) Gas() uint64                  { return m.CallMsg.Gas }
-func (m callMsg) Value() *big.Int              { return m.CallMsg.Value }
-func (m callMsg) Data() []byte                 { return m.CallMsg.Data }
-func (m callMsg) AccessList() types.AccessList { return m.CallMsg.AccessList }
+func (m callMsg) From() common.Address                                { return m.CallMsg.From }
+func (m callMsg) Nonce() uint64                                       { return 0 }
+func (m callMsg) IsFake() bool                                        { return true }
+func (m callMsg) To() *common.Address                                 { return m.CallMsg.To }
+func (m callMsg) GasPrice() *big.Int                                  { return m.CallMsg.GasPrice }
+func (m callMsg) GasFeeCap() *big.Int                                 { return m.CallMsg.GasFeeCap }
+func (m callMsg) GasTipCap() *big.Int                                 { return m.CallMsg.GasTipCap }
+func (m callMsg) Gas() uint64                                         { return m.CallMsg.Gas }
+func (m callMsg) Value() *big.Int                                     { return m.CallMsg.Value }
+func (m callMsg) Data() []byte                                        { return m.CallMsg.Data }
+func (m callMsg) AccessList() types.AccessList                        { return m.CallMsg.AccessList }
+func (m callMsg) SetCodeAuthorizations() []types.SetCodeAuthorization { return nil }
 
 // FIXME: support sponsored transaction in callMsg
 func (m callMsg) Payer() common.Address { return m.CallMsg.From }

accounts/external/backend.go

@@ -218,7 +218,7 @@ func (api *ExternalSigner) SignTx(account accounts.Account, tx *types.Transactio
 	switch tx.Type() {
 	case types.LegacyTxType, types.AccessListTxType:
 		args.GasPrice = (*hexutil.Big)(tx.GasPrice())
-	case types.DynamicFeeTxType:
+	case types.DynamicFeeTxType, types.BlobTxType, types.SetCodeTxType:
 		args.MaxFeePerGas = (*hexutil.Big)(tx.GasFeeCap())
 		args.MaxPriorityFeePerGas = (*hexutil.Big)(tx.GasTipCap())
 	default:

cmd/evm/internal/t8ntool/transaction.go

@@ -140,7 +140,7 @@ func Transaction(ctx *cli.Context) error {
 		}
 		// Check intrinsic gas
 		rules := chainConfig.Rules(common.Big0)
-		gas, err := core.IntrinsicGas(tx.Data(), tx.AccessList(), tx.To() == nil, rules.IsHomestead, rules.IsIstanbul, rules.IsShanghai)
+		gas, err := core.IntrinsicGas(tx.Data(), tx.AccessList(), tx.SetCodeAuthorizations(), tx.To() == nil, rules.IsHomestead, rules.IsIstanbul, rules.IsShanghai)
 		if err != nil {
 			r.Error = err
 			results = append(results, r)

common/hexutil/json.go

@@ -23,13 +23,16 @@ import (
 	"math/big"
 	"reflect"
 	"strconv"
+
+	"github.com/holiman/uint256"
 )
 
 var (
 	bytesT  = reflect.TypeOf(Bytes(nil))
 	bigT    = reflect.TypeOf((*Big)(nil))
 	uintT   = reflect.TypeOf(Uint(0))
 	uint64T = reflect.TypeOf(Uint64(0))
+	u256T   = reflect.TypeOf((*uint256.Int)(nil))
 )
 
 // Bytes marshals/unmarshals as a JSON string with 0x prefix.
@@ -225,6 +228,48 @@ func (b *Big) UnmarshalGraphQL(input interface{}) error {
 	return err
 }
 
+// U256 marshals/unmarshals as a JSON string with 0x prefix.
+// The zero value marshals as "0x0".
+type U256 uint256.Int
+
+// MarshalText implements encoding.TextMarshaler
+func (b U256) MarshalText() ([]byte, error) {
+	u256 := (*uint256.Int)(&b)
+	return []byte(u256.Hex()), nil
+}
+
+// UnmarshalJSON implements json.Unmarshaler.
+func (b *U256) UnmarshalJSON(input []byte) error {
+	// The uint256.Int.UnmarshalJSON method accepts "dec", "0xhex"; we must be
+	// more strict, hence we check string and invoke SetFromHex directly.
+	if !isString(input) {
+		return errNonString(u256T)
+	}
+	// The hex decoder needs to accept empty string ("") as '0', which uint256.Int
+	// would reject.
+	if len(input) == 2 {
+		(*uint256.Int)(b).Clear()
+		return nil
+	}
+	err := (*uint256.Int)(b).SetFromHex(string(input[1 : len(input)-1]))
+	if err != nil {
+		return &json.UnmarshalTypeError{Value: err.Error(), Type: u256T}
+	}
+	return nil
+}
+
+// UnmarshalText implements encoding.TextUnmarshaler
+func (b *U256) UnmarshalText(input []byte) error {
+	// The uint256.Int.UnmarshalText method accepts "dec", "0xhex"; we must be
+	// more strict, hence we check string and invoke SetFromHex directly.
+	return (*uint256.Int)(b).SetFromHex(string(input))
+}
+
+// String returns the hex encoding of b.
+func (b *U256) String() string {
+	return (*uint256.Int)(b).Hex()
+}
+
 // Uint64 marshals/unmarshals as a JSON string with 0x prefix.
 // The zero value marshals as "0x0".
 type Uint64 uint64

common/hexutil/json_test.go

@@ -23,6 +23,8 @@ import (
 	"errors"
 	"math/big"
 	"testing"
+
+	"github.com/holiman/uint256"
 )
 
 func checkError(t *testing.T, input string, got, want error) bool {
@@ -176,6 +178,64 @@ func TestUnmarshalBig(t *testing.T) {
 	}
 }
 
+var unmarshalU256Tests = []unmarshalTest{
+	// invalid encoding
+	{input: "", wantErr: errJSONEOF},
+	{input: "null", wantErr: errNonString(u256T)},
+	{input: "10", wantErr: errNonString(u256T)},
+	{input: `"0"`, wantErr: wrapTypeError(ErrMissingPrefix, u256T)},
+	{input: `"0x"`, wantErr: wrapTypeError(ErrEmptyNumber, u256T)},
+	{input: `"0x01"`, wantErr: wrapTypeError(ErrLeadingZero, u256T)},
+	{input: `"0xx"`, wantErr: wrapTypeError(ErrSyntax, u256T)},
+	{input: `"0x1zz01"`, wantErr: wrapTypeError(ErrSyntax, u256T)},
+	{
+		input:   `"0x10000000000000000000000000000000000000000000000000000000000000000"`,
+		wantErr: wrapTypeError(ErrBig256Range, u256T),
+	},
+
+	// valid encoding
+	{input: `""`, want: big.NewInt(0)},
+	{input: `"0x0"`, want: big.NewInt(0)},
+	{input: `"0x2"`, want: big.NewInt(0x2)},
+	{input: `"0x2F2"`, want: big.NewInt(0x2f2)},
+	{input: `"0X2F2"`, want: big.NewInt(0x2f2)},
+	{input: `"0x1122aaff"`, want: big.NewInt(0x1122aaff)},
+	{input: `"0xbBb"`, want: big.NewInt(0xbbb)},
+	{input: `"0xfffffffff"`, want: big.NewInt(0xfffffffff)},
+	{
+		input: `"0x112233445566778899aabbccddeeff"`,
+		want:  referenceBig("112233445566778899aabbccddeeff"),
+	},
+	{
+		input: `"0xffffffffffffffffffffffffffffffffffff"`,
+		want:  referenceBig("ffffffffffffffffffffffffffffffffffff"),
+	},
+	{
+		input: `"0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"`,
+		want:  referenceBig("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"),
+	},
+}
+
+func TestUnmarshalU256(t *testing.T) {
+	for _, test := range unmarshalU256Tests {
+		var v U256
+		err := json.Unmarshal([]byte(test.input), &v)
+		if !checkError(t, test.input, err, test.wantErr) {
+			continue
+		}
+		if test.want == nil {
+			continue
+		}
+		want := new(uint256.Int)
+		want.SetFromBig(test.want.(*big.Int))
+		have := (*uint256.Int)(&v)
+		if want.Cmp(have) != 0 {
+			t.Errorf("input %s: value mismatch: have %x, want %x", test.input, have, want)
+			continue
+		}
+	}
+}
+
 func BenchmarkUnmarshalBig(b *testing.B) {
 	input := []byte(`"0x123456789abcdef123456789abcdef"`)
 	for i := 0; i < b.N; i++ {

consensus/consortium/common/contract.go

@@ -208,6 +208,7 @@ func (c *ContractIntegrator) WrapUpEpoch(opts *ApplyTransactOpts) error {
 		false,
 		nil,
 		nil,
+		nil,
 	)
 
 	if err = ApplyTransaction(msg, opts); err != nil {
@@ -249,6 +250,7 @@ func (c *ContractIntegrator) SubmitBlockReward(opts *ApplyTransactOpts) error {
 		false,
 		nil,
 		nil,
+		nil,
 	)
 
 	if err = ApplyTransaction(msg, opts); err != nil {
@@ -282,6 +284,7 @@ func (c *ContractIntegrator) Slash(opts *ApplyTransactOpts, spoiledValidator com
 		false,
 		nil,
 		nil,
+		nil,
 	)
 
 	if err = ApplyTransaction(msg, opts); err != nil {
@@ -313,6 +316,7 @@ func (c *ContractIntegrator) FinalityReward(opts *ApplyTransactOpts, votedValida
 		false,
 		nil,
 		nil,
+		nil,
 	)
 
 	if err = ApplyTransaction(msg, opts); err != nil {

consensus/consortium/common/contract_test.go

@@ -313,7 +313,7 @@ func TestApplyTransaction(t *testing.T) {
 		t.Fatal(err)
 	}
 	msg := types.NewMessage(minerAddr, tx.To(), tx.Nonce(), tx.Value(), tx.Gas(),
-		tx.GasPrice(), tx.GasFeeCap(), tx.GasTipCap(), tx.Data(), nil, false, nil, nil)
+		tx.GasPrice(), tx.GasFeeCap(), tx.GasTipCap(), tx.Data(), nil, false, nil, nil, nil)
 
 	state, err := state.New(common.Hash{}, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
 	if err != nil {

core/bench_test.go

@@ -86,7 +86,7 @@ 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 := types.MakeSigner(gen.config, big.NewInt(int64(i)))
 		gasPrice := big.NewInt(0)
 		if gen.header.BaseFee != nil {

core/blockchain_test.go

@@ -17,6 +17,7 @@
 package core
 
 import (
+	"bytes"
 	"errors"
 	"fmt"
 	"io/ioutil"
@@ -30,6 +31,7 @@ import (
 	"github.com/consensys/gnark-crypto/ecc/bls12-381/fr"
 	gokzg4844 "github.com/crate-crypto/go-kzg-4844"
 	"github.com/ethereum/go-ethereum/common/math"
+	"github.com/ethereum/go-ethereum/core/vm/program"
 	"github.com/ethereum/go-ethereum/crypto/kzg4844"
 	"github.com/ethereum/go-ethereum/eth/tracers/logger"
 	lru "github.com/hashicorp/golang-lru/v2"
@@ -2894,6 +2896,7 @@ func testDeleteRecreateSlots(t *testing.T, scheme string) {
 
 	chainConfig := *params.TestChainConfig
 	chainConfig.CancunBlock = nil
+	chainConfig.PragueBlock = nil
 	gspec := &Genesis{
 		Config: &chainConfig,
 		Alloc: GenesisAlloc{
@@ -2987,6 +2990,7 @@ func testDeleteRecreateAccount(t *testing.T, scheme string) {
 
 	chainConfig := *params.TestChainConfig
 	chainConfig.CancunBlock = nil
+	chainConfig.PragueBlock = nil
 	gspec := &Genesis{
 		Config: &chainConfig,
 		Alloc: GenesisAlloc{
@@ -3114,6 +3118,7 @@ func testDeleteRecreateSlotsAcrossManyBlocks(t *testing.T, scheme string) {
 	t.Logf("Destination address: %x\n", aa)
 	chainConfig := *params.TestChainConfig
 	chainConfig.CancunBlock = nil
+	chainConfig.PragueBlock = nil
 	gspec := &Genesis{
 		Config: &chainConfig,
 		Alloc: GenesisAlloc{
@@ -4750,3 +4755,94 @@ func TestDeleteThenCreate(t *testing.T) {
 		}
 	}
 }
+
+// TestEIP7702 deploys two delegation designations and calls them. It writes one
+// value to storage which is verified after.
+func TestEIP7702(t *testing.T) {
+	var (
+		config  = params.TestChainConfig
+		signer  = types.LatestSigner(config)
+		engine  = ethash.NewFaker()
+		key1, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
+		key2, _ = crypto.HexToECDSA("8a1f9a8f95be41cd7ccb6168179afb4504aefe388d1e14474d32c45c72ce7b7a")
+		addr1   = crypto.PubkeyToAddress(key1.PublicKey)
+		addr2   = crypto.PubkeyToAddress(key2.PublicKey)
+		aa      = common.HexToAddress("0x000000000000000000000000000000000000aaaa")
+		bb      = common.HexToAddress("0x000000000000000000000000000000000000bbbb")
+		funds   = new(big.Int).Mul(common.Big1, big.NewInt(params.Ether))
+	)
+	gspec := &Genesis{
+		Config: config,
+		Alloc: GenesisAlloc{
+			addr1: {Balance: funds},
+			addr2: {Balance: funds},
+			aa: { // The address 0xAAAA calls into addr2
+				Code:    program.New().Call(nil, addr2, 1, 0, 0, 0, 0).Bytes(),
+				Nonce:   0,
+				Balance: big.NewInt(0),
+			},
+			bb: { // The address 0xBBBB sstores 42 into slot 42.
+				Code:    program.New().Sstore(0x42, 0x42).Bytes(),
+				Nonce:   0,
+				Balance: big.NewInt(0),
+			},
+		},
+	}
+
+	// Sign authorization tuples.
+	// The way the auths are combined, it becomes
+	// 1. tx -> addr1 which is delegated to 0xaaaa
+	// 2. addr1:0xaaaa calls into addr2:0xbbbb
+	// 3. addr2:0xbbbb  writes to storage
+	auth1, _ := types.SignSetCode(key1, types.SetCodeAuthorization{
+		ChainID: *uint256.MustFromBig(gspec.Config.ChainID),
+		Address: aa,
+		Nonce:   1,
+	})
+	auth2, _ := types.SignSetCode(key2, types.SetCodeAuthorization{
+		Address: bb,
+		Nonce:   0,
+	})
+
+	_, 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.SetCodeAuthorization{auth1, auth2},
+		}
+		tx := types.MustSignNewTx(key1, signer, txdata)
+		b.AddTx(tx)
+	})
+	chain, err := NewBlockChain(rawdb.NewMemoryDatabase(), nil, gspec, nil, engine, vm.Config{}, nil, nil)
+	if err != nil {
+		t.Fatalf("failed to create tester chain: %v", err)
+	}
+	defer chain.Stop()
+	if n, err := chain.InsertChain(blocks, nil); err != nil {
+		t.Fatalf("block %d: failed to insert into chain: %v", n, err)
+	}
+
+	// Verify delegation designations were deployed.
+	state, _ := chain.State()
+	code, want := state.GetCode(addr1), types.AddressToDelegation(auth1.Address)
+	if !bytes.Equal(code, want) {
+		t.Fatalf("addr1 code incorrect: got %s, want %s", common.Bytes2Hex(code), common.Bytes2Hex(want))
+	}
+	code, want = state.GetCode(addr2), types.AddressToDelegation(auth2.Address)
+	if !bytes.Equal(code, want) {
+		t.Fatalf("addr2 code incorrect: got %s, want %s", common.Bytes2Hex(code), common.Bytes2Hex(want))
+	}
+	// Verify delegation executed the correct code.
+	var (
+		fortyTwo = common.BytesToHash([]byte{0x42})
+		actual   = state.GetState(addr2, fortyTwo)
+	)
+	if actual.Cmp(fortyTwo) != 0 {
+		t.Fatalf("addr2 storage wrong: expected %d, got %d", fortyTwo, actual)
+	}
+}

core/error.go

@@ -134,4 +134,20 @@ var (
 
 	// ErrBlobTxCreate is returned if a blob transaction has no explicit to field.
 	ErrBlobTxCreate = errors.New("blob transaction of type create")
+
+	// -- EIP-7702 errors --
+
+	// Message validation errors:
+	ErrEmptyAuthList   = errors.New("EIP-7702 transaction with empty auth list")
+	ErrSetCodeTxCreate = errors.New("EIP-7702 transaction cannot be used to create contract")
+)
+
+// EIP-7702 state transition errors.
+// Note these are just informational, and do not cause tx execution abort.
+var (
+	ErrAuthorizationWrongChainID       = errors.New("EIP-7702 authorization chain ID mismatch")
+	ErrAuthorizationNonceOverflow      = errors.New("EIP-7702 authorization nonce > 64 bit")
+	ErrAuthorizationInvalidSignature   = errors.New("EIP-7702 authorization has invalid signature")
+	ErrAuthorizationDestinationHasCode = errors.New("EIP-7702 authorization destination is a contract")
+	ErrAuthorizationNonceMismatch      = errors.New("EIP-7702 authorization nonce does not match current account nonce")
 )