evm: params

CHANGELOG.md

@@ -40,6 +40,9 @@ Ref: https://keepachangelog.com/en/1.0.0/
 ### Improvements
 
 * (app) [\#471](https://github.com/ChainSafe/ethermint/pull/471) Add `x/upgrade` module for managing software updates.
+* (`x/evm`) [\#458](https://github.com/ChainSafe/ethermint/pull/458) Define parameter for token denomination used for the EVM module.
+* (`x/evm`) [\#443](https://github.com/ChainSafe/ethermint/issues/443) Support custom Ethereum `ChainConfig` params.
+* (types) [\#434](https://github.com/ChainSafe/ethermint/issues/434) Update default denomination to Atto Photon (`aphoton`).
 
 ### Bug Fixes
 

Makefile

@@ -211,7 +211,7 @@ test-race:
 
 test-import:
 	@go test ./importer -v --vet=off --run=TestImportBlocks --datadir tmp \
-	--blockchain blockchain --timeout=10m
+	--blockchain blockchain
 	rm -rf importer/tmp
 
 test-rpc:

app/ante/ante.go

@@ -6,7 +6,6 @@ import (
 	"github.com/cosmos/cosmos-sdk/x/auth"
 	authante "github.com/cosmos/cosmos-sdk/x/auth/ante"
 	"github.com/cosmos/cosmos-sdk/x/auth/types"
-	"github.com/cosmos/cosmos-sdk/x/bank"
 
 	"github.com/cosmos/ethermint/crypto"
 	evmtypes "github.com/cosmos/ethermint/x/evm/types"
@@ -29,7 +28,7 @@ const (
 // Ethereum or SDK transaction to an internal ante handler for performing
 // transaction-level processing (e.g. fee payment, signature verification) before
 // being passed onto it's respective handler.
-func NewAnteHandler(ak auth.AccountKeeper, bk bank.Keeper, sk types.SupplyKeeper) sdk.AnteHandler {
+func NewAnteHandler(ak auth.AccountKeeper, evmKeeper EVMKeeper, sk types.SupplyKeeper) sdk.AnteHandler {
 	return func(
 		ctx sdk.Context, tx sdk.Tx, sim bool,
 	) (newCtx sdk.Context, err error) {
@@ -53,11 +52,11 @@ func NewAnteHandler(ak auth.AccountKeeper, bk bank.Keeper, sk types.SupplyKeeper
 		case evmtypes.MsgEthereumTx:
 			anteHandler = sdk.ChainAnteDecorators(
 				NewEthSetupContextDecorator(), // outermost AnteDecorator. EthSetUpContext must be called first
-				NewEthMempoolFeeDecorator(),
+				NewEthMempoolFeeDecorator(evmKeeper),
 				NewEthSigVerificationDecorator(),
-				NewAccountVerificationDecorator(ak, bk),
+				NewAccountVerificationDecorator(ak, evmKeeper),
 				NewNonceVerificationDecorator(ak),
-				NewEthGasConsumeDecorator(ak, sk),
+				NewEthGasConsumeDecorator(ak, sk, evmKeeper),
 				NewIncrementSenderSequenceDecorator(ak), // innermost AnteDecorator.
 			)
 		default:

app/ante/ante_test.go

@@ -254,8 +254,9 @@ func (suite *AnteTestSuite) TestEthInvalidMempoolFees() {
 	// setup app with checkTx = true
 	suite.app = app.Setup(true)
 	suite.ctx = suite.app.BaseApp.NewContext(true, abci.Header{Height: 1, ChainID: "3", Time: time.Now().UTC()})
-	suite.anteHandler = ante.NewAnteHandler(suite.app.AccountKeeper, suite.app.BankKeeper, suite.app.SupplyKeeper)
+	suite.app.EvmKeeper.SetParams(suite.ctx, evmtypes.DefaultParams())
 
+	suite.anteHandler = ante.NewAnteHandler(suite.app.AccountKeeper, suite.app.EvmKeeper, suite.app.SupplyKeeper)
 	suite.ctx = suite.ctx.WithMinGasPrices(sdk.NewDecCoins(sdk.NewDecCoin(types.DenomDefault, sdk.NewInt(500000))))
 	addr1, priv1 := newTestAddrKey()
 	addr2, _ := newTestAddrKey()

app/ante/eth.go

@@ -9,7 +9,6 @@ import (
 	"github.com/cosmos/cosmos-sdk/x/auth"
 	authante "github.com/cosmos/cosmos-sdk/x/auth/ante"
 	"github.com/cosmos/cosmos-sdk/x/auth/types"
-	"github.com/cosmos/cosmos-sdk/x/bank"
 
 	emint "github.com/cosmos/ethermint/types"
 	evmtypes "github.com/cosmos/ethermint/x/evm/types"
@@ -18,6 +17,11 @@ import (
 	ethcore "github.com/ethereum/go-ethereum/core"
 )
 
+// EVMKeeper defines the expected keeper interface used on the Eth AnteHandler
+type EVMKeeper interface {
+	GetParams(ctx sdk.Context) evmtypes.Params
+}
+
 // EthSetupContextDecorator sets the infinite GasMeter in the Context and wraps
 // the next AnteHandler with a defer clause to recover from any downstream
 // OutOfGas panics in the AnteHandler chain to return an error with information
@@ -68,11 +72,15 @@ func (escd EthSetupContextDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx, simu
 
 // EthMempoolFeeDecorator validates that sufficient fees have been provided that
 // meet a minimum threshold defined by the proposer (for mempool purposes during CheckTx).
-type EthMempoolFeeDecorator struct{}
+type EthMempoolFeeDecorator struct {
+	evmKeeper EVMKeeper
+}
 
 // NewEthMempoolFeeDecorator creates a new EthMempoolFeeDecorator
-func NewEthMempoolFeeDecorator() EthMempoolFeeDecorator {
-	return EthMempoolFeeDecorator{}
+func NewEthMempoolFeeDecorator(ek EVMKeeper) EthMempoolFeeDecorator {
+	return EthMempoolFeeDecorator{
+		evmKeeper: ek,
+	}
 }
 
 // AnteHandle verifies that enough fees have been provided by the
@@ -90,16 +98,18 @@ func (emfd EthMempoolFeeDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx, simula
 		return ctx, sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "invalid transaction type: %T", tx)
 	}
 
+	evmDenom := emfd.evmKeeper.GetParams(ctx).EvmDenom
+
 	// fee = GP * GL
-	fee := sdk.NewInt64DecCoin(emint.DenomDefault, msgEthTx.Fee().Int64())
+	fee := sdk.NewInt64DecCoin(evmDenom, msgEthTx.Fee().Int64())
 
 	minGasPrices := ctx.MinGasPrices()
 
 	// check that fee provided is greater than the minimum
 	// NOTE: we only check if aphotons are present in min gas prices. It is up to the
 	// sender if they want to send additional fees in other denominations.
 	var hasEnoughFees bool
-	if fee.Amount.GTE(minGasPrices.AmountOf(emint.DenomDefault)) {
+	if fee.Amount.GTE(minGasPrices.AmountOf(evmDenom)) {
 		hasEnoughFees = true
 	}
 
@@ -150,15 +160,15 @@ func (esvd EthSigVerificationDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx, s
 
 // AccountVerificationDecorator validates an account balance checks
 type AccountVerificationDecorator struct {
-	ak auth.AccountKeeper
-	bk bank.Keeper
+	ak        auth.AccountKeeper
+	evmKeeper EVMKeeper
 }
 
 // NewAccountVerificationDecorator creates a new AccountVerificationDecorator
-func NewAccountVerificationDecorator(ak auth.AccountKeeper, bk bank.Keeper) AccountVerificationDecorator {
+func NewAccountVerificationDecorator(ak auth.AccountKeeper, ek EVMKeeper) AccountVerificationDecorator {
 	return AccountVerificationDecorator{
-		ak: ak,
-		bk: bk,
+		ak:        ak,
+		evmKeeper: ek,
 	}
 }
 
@@ -192,12 +202,14 @@ func (avd AccountVerificationDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx, s
 		)
 	}
 
+	evmDenom := avd.evmKeeper.GetParams(ctx).EvmDenom
+
 	// validate sender has enough funds to pay for gas cost
-	balance := sdk.Coin{Denom: emint.DenomDefault, Amount: acc.GetCoins().AmountOf(emint.DenomDefault)}
-	if balance.Amount.BigInt().Cmp(msgEthTx.Cost()) < 0 {
+	balance := acc.GetCoins().AmountOf(evmDenom)
+	if balance.BigInt().Cmp(msgEthTx.Cost()) < 0 {
 		return ctx, sdkerrors.Wrapf(
 			sdkerrors.ErrInsufficientFunds,
-			"sender balance < tx gas cost (%s < %s%s)", balance.String(), msgEthTx.Cost().String(), emint.DenomDefault,
+			"sender balance < tx gas cost (%s%s < %s%s)", balance.String(), evmDenom, msgEthTx.Cost().String(), evmDenom,
 		)
 	}
 
@@ -250,15 +262,17 @@ func (nvd NonceVerificationDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx, sim
 // EthGasConsumeDecorator validates enough intrinsic gas for the transaction and
 // gas consumption.
 type EthGasConsumeDecorator struct {
-	ak auth.AccountKeeper
-	sk types.SupplyKeeper
+	ak        auth.AccountKeeper
+	sk        types.SupplyKeeper
+	evmKeeper EVMKeeper
 }
 
 // NewEthGasConsumeDecorator creates a new EthGasConsumeDecorator
-func NewEthGasConsumeDecorator(ak auth.AccountKeeper, sk types.SupplyKeeper) EthGasConsumeDecorator {
+func NewEthGasConsumeDecorator(ak auth.AccountKeeper, sk types.SupplyKeeper, ek EVMKeeper) EthGasConsumeDecorator {
 	return EthGasConsumeDecorator{
-		ak: ak,
-		sk: sk,
+		ak:        ak,
+		sk:        sk,
+		evmKeeper: ek,
 	}
 }
 
@@ -307,8 +321,10 @@ func (egcd EthGasConsumeDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx, simula
 		// Cost calculates the fees paid to validators based on gas limit and price
 		cost := new(big.Int).Mul(msgEthTx.Data.Price, new(big.Int).SetUint64(gasLimit))
 
+		evmDenom := egcd.evmKeeper.GetParams(ctx).EvmDenom
+
 		feeAmt := sdk.NewCoins(
-			sdk.NewCoin(emint.DenomDefault, sdk.NewIntFromBigInt(cost)),
+			sdk.NewCoin(evmDenom, sdk.NewIntFromBigInt(cost)),
 		)
 
 		err = auth.DeductFees(egcd.sk, ctx, senderAcc, feeAmt)

app/ante/utils_test.go

@@ -38,7 +38,9 @@ func (suite *AnteTestSuite) SetupTest() {
 	suite.app.Codec().RegisterConcrete(&sdk.TestMsg{}, "test/TestMsg", nil)
 
 	suite.ctx = suite.app.BaseApp.NewContext(checkTx, abci.Header{Height: 1, ChainID: "3", Time: time.Now().UTC()})
-	suite.anteHandler = ante.NewAnteHandler(suite.app.AccountKeeper, suite.app.BankKeeper, suite.app.SupplyKeeper)
+	suite.app.EvmKeeper.SetParams(suite.ctx, evmtypes.DefaultParams())
+
+	suite.anteHandler = ante.NewAnteHandler(suite.app.AccountKeeper, suite.app.EvmKeeper, suite.app.SupplyKeeper)
 }
 
 func TestAnteTestSuite(t *testing.T) {

app/ethermint.go

@@ -148,7 +148,7 @@ func NewEthermintApp(
 
 	cdc := ethermintcodec.MakeCodec(ModuleBasics)
 
-	// use custom Ethermint transaction decoder
+	// NOTE we use custom Ethermint transaction decoder that supports the sdk.Tx interface instead of sdk.StdTx
 	bApp := bam.NewBaseApp(appName, logger, db, evm.TxDecoder(cdc), baseAppOptions...)
 	bApp.SetCommitMultiStoreTracer(traceStore)
 	bApp.SetAppVersion(version.Version)
@@ -182,6 +182,7 @@ func NewEthermintApp(
 	app.subspaces[gov.ModuleName] = app.ParamsKeeper.Subspace(gov.DefaultParamspace).WithKeyTable(gov.ParamKeyTable())
 	app.subspaces[crisis.ModuleName] = app.ParamsKeeper.Subspace(crisis.DefaultParamspace)
 	app.subspaces[evidence.ModuleName] = app.ParamsKeeper.Subspace(evidence.DefaultParamspace)
+	app.subspaces[evm.ModuleName] = app.ParamsKeeper.Subspace(evm.DefaultParamspace)
 
 	// use custom Ethermint account for contracts
 	app.AccountKeeper = auth.NewAccountKeeper(
@@ -212,7 +213,7 @@ func NewEthermintApp(
 	)
 	app.UpgradeKeeper = upgrade.NewKeeper(skipUpgradeHeights, keys[upgrade.StoreKey], app.cdc)
 	app.EvmKeeper = evm.NewKeeper(
-		app.cdc, keys[evm.StoreKey], app.AccountKeeper,
+		app.cdc, keys[evm.StoreKey], app.subspaces[evm.ModuleName], app.AccountKeeper,
 	)
 	app.FaucetKeeper = faucet.NewKeeper(
 		app.cdc, keys[faucet.StoreKey], app.SupplyKeeper,
@@ -311,7 +312,7 @@ func NewEthermintApp(
 	// initialize BaseApp
 	app.SetInitChainer(app.InitChainer)
 	app.SetBeginBlocker(app.BeginBlocker)
-	app.SetAnteHandler(ante.NewAnteHandler(app.AccountKeeper, app.BankKeeper, app.SupplyKeeper))
+	app.SetAnteHandler(ante.NewAnteHandler(app.AccountKeeper, app.EvmKeeper, app.SupplyKeeper))
 	app.SetEndBlocker(app.EndBlocker)
 
 	if loadLatest {