fix(txpool): revert duplicated l1 data fee check (#612)

* Revert "fix(tx-pool): consider L1 data fee in validateTx"

This reverts commit 0a5c04b85d0f8b509542306894c03bd3feff65bd.

* simplify veriftfee

* bump version

* address comments

* keep the original behavior

* fix again

* nit

* tweak comments

core/tx_pool.go

@@ -658,16 +658,25 @@ func (pool *TxPool) validateTx(tx *types.Transaction, local bool) error {
 	if pool.currentState.GetNonce(from) > tx.Nonce() {
 		return ErrNonceTooLow
 	}
-	// Get L1 data fee in current state
-	l1DataFee, err := fees.CalculateL1DataFee(tx, pool.currentState)
-	if err != nil {
-		return fmt.Errorf("failed to calculate L1 data fee, err: %w", err)
-	}
+	// 1. Check balance >= transaction cost (V + GP * GL) to maintain compatibility with the logic without considering L1 data fee.
 	// Transactor should have enough funds to cover the costs
 	// cost == V + GP * GL
-	if pool.currentState.GetBalance(from).Cmp(new(big.Int).Add(tx.Cost(), l1DataFee)) < 0 {
+	if pool.currentState.GetBalance(from).Cmp(tx.Cost()) < 0 {
 		return ErrInsufficientFunds
 	}
+	// 2. If FeeVault is enabled, perform an additional check for L1 data fees.
+	if pool.chainconfig.Scroll.FeeVaultEnabled() {
+		// Get L1 data fee in current state
+		l1DataFee, err := fees.CalculateL1DataFee(tx, pool.currentState)
+		if err != nil {
+			return fmt.Errorf("failed to calculate L1 data fee, err: %w", err)
+		}
+		// Transactor should have enough funds to cover the costs
+		// cost == L1 data fee + V + GP * GL
+		if b := pool.currentState.GetBalance(from); b.Cmp(new(big.Int).Add(tx.Cost(), l1DataFee)) < 0 {
+			return errors.New("invalid transaction: insufficient funds for l1fee + gas * price + value")
+		}
+	}
 	// Ensure the transaction has more gas than the basic tx fee.
 	intrGas, err := IntrinsicGas(tx.Data(), tx.AccessList(), tx.To() == nil, true, pool.istanbul, pool.shanghai)
 	if err != nil {
@@ -698,14 +707,6 @@ func (pool *TxPool) add(tx *types.Transaction, local bool) (replaced bool, err e
 	// the sender is marked as local previously, treat it as the local transaction.
 	isLocal := local || pool.locals.containsTx(tx)
 
-	if pool.chainconfig.Scroll.FeeVaultEnabled() {
-		if err := fees.VerifyFee(pool.signer, tx, pool.currentState); err != nil {
-			log.Trace("Discarding insufficient l1DataFee transaction", "hash", hash, "err", err)
-			invalidTxMeter.Mark(1)
-			return false, err
-		}
-	}
-
 	// If the transaction fails basic validation, discard it
 	if err := pool.validateTx(tx, isLocal); err != nil {
 		log.Trace("Discarding invalid transaction", "hash", hash, "err", err)

light/txpool.go

@@ -18,6 +18,7 @@ package light
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"math/big"
 	"sync"
@@ -377,12 +378,25 @@ func (pool *TxPool) validateTx(ctx context.Context, tx *types.Transaction) error
 	if tx.Value().Sign() < 0 {
 		return core.ErrNegativeValue
 	}
-
+	// 1. Check balance >= transaction cost (V + GP * GL) to maintain compatibility with the logic without considering L1 data fee.
 	// Transactor should have enough funds to cover the costs
 	// cost == V + GP * GL
 	if b := currentState.GetBalance(from); b.Cmp(tx.Cost()) < 0 {
 		return core.ErrInsufficientFunds
 	}
+	// 2. If FeeVault is enabled, perform an additional check for L1 data fees.
+	if pool.config.Scroll.FeeVaultEnabled() {
+		// Get L1 data fee in current state
+		l1DataFee, err := fees.CalculateL1DataFee(tx, currentState)
+		if err != nil {
+			return fmt.Errorf("failed to calculate L1 data fee, err: %w", err)
+		}
+		// Transactor should have enough funds to cover the costs
+		// cost == L1 data fee + V + GP * GL
+		if b := currentState.GetBalance(from); b.Cmp(new(big.Int).Add(tx.Cost(), l1DataFee)) < 0 {
+			return errors.New("invalid transaction: insufficient funds for l1fee + gas * price + value")
+		}
+	}
 
 	// Should supply enough intrinsic gas
 	gas, err := core.IntrinsicGas(tx.Data(), tx.AccessList(), tx.To() == nil, true, pool.istanbul, pool.shanghai)
@@ -404,12 +418,6 @@ func (pool *TxPool) add(ctx context.Context, tx *types.Transaction) error {
 		return fmt.Errorf("Known transaction (%x)", hash[:4])
 	}
 
-	if pool.config.Scroll.FeeVaultEnabled() {
-		if err := fees.VerifyFee(pool.signer, tx, pool.currentState(ctx)); err != nil {
-			return err
-		}
-	}
-
 	err := pool.validateTx(ctx, tx)
 	if err != nil {
 		return err

params/version.go

@@ -24,7 +24,7 @@ import (
 const (
 	VersionMajor = 5         // Major version component of the current release
 	VersionMinor = 1         // Minor version component of the current release
-	VersionPatch = 10        // Patch version component of the current release
+	VersionPatch = 11        // Patch version component of the current release
 	VersionMeta  = "mainnet" // Version metadata to append to the version string
 )
 

rollup/fees/rollup_fee.go

@@ -2,8 +2,6 @@ package fees
 
 import (
 	"bytes"
-	"errors"
-	"fmt"
 	"math/big"
 
 	"github.com/scroll-tech/go-ethereum/common"
@@ -189,38 +187,3 @@ func CalculateL1DataFee(tx *types.Transaction, state StateDB) (*big.Int, error)
 	l1DataFee := calculateEncodedL1DataFee(raw, overhead, l1BaseFee, scalar)
 	return l1DataFee, nil
 }
-
-func calculateL2Fee(tx *types.Transaction) *big.Int {
-	l2GasLimit := new(big.Int).SetUint64(tx.Gas())
-	return new(big.Int).Mul(tx.GasPrice(), l2GasLimit)
-}
-
-func VerifyFee(signer types.Signer, tx *types.Transaction, state StateDB) error {
-	from, err := types.Sender(signer, tx)
-	if err != nil {
-		return errors.New("invalid transaction: invalid sender")
-	}
-
-	balance := state.GetBalance(from)
-	cost := tx.Value()
-
-	l2Fee := calculateL2Fee(tx)
-	cost = cost.Add(cost, l2Fee)
-	if balance.Cmp(cost) < 0 {
-		return errors.New("invalid transaction: insufficient funds for gas * price + value")
-	}
-
-	l1DataFee, err := CalculateL1DataFee(tx, state)
-	if err != nil {
-		return fmt.Errorf("invalid transaction: %w", err)
-	}
-
-	cost = cost.Add(cost, l1DataFee)
-	if balance.Cmp(cost) < 0 {
-		return errors.New("invalid transaction: insufficient funds for l1fee + gas * price + value")
-	}
-
-	// TODO: check GasPrice is in an expected range
-
-	return nil
-}