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Documentation
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Overview ¶
Copyright 2022 Evmos Foundation This file is part of the Evmos Network packages.
Evmos is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
The Evmos packages are distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along with the Evmos packages. If not, see https://github.com/evmos/evmos/blob/main/LICENSE
Package ante defines the SDK auth module's AnteHandler as well as an internal AnteHandler for an Ethereum transaction (i.e MsgEthereumTx).
During CheckTx, the transaction is passed through a series of pre-message execution validation checks such as signature and account verification in addition to minimum fees being checked. Otherwise, during DeliverTx, the transaction is simply passed to the EVM which will also perform the same series of checks. The distinction is made in CheckTx to prevent spam and DoS attacks.
Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func NewAnteHandler ¶
func NewAnteHandler(options HandlerOptions) sdk.AnteHandler
NewAnteHandler returns an ante handler responsible for attempting to route an 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.
Types ¶
type AuthzLimiterDecorator ¶ added in v11.0.2
type AuthzLimiterDecorator struct {
// contains filtered or unexported fields
}
AuthzLimiterDecorator blocks certain msg types from being granted or executed within the authorization module.
func NewAuthzLimiterDecorator ¶ added in v11.0.2
func NewAuthzLimiterDecorator(disabledMsgTypes ...string) AuthzLimiterDecorator
NewAuthzLimiterDecorator creates a decorator to block certain msg types from being granted or executed within authz.
func (AuthzLimiterDecorator) AnteHandle ¶ added in v11.0.2
type EthVestingTransactionDecorator ¶
type EthVestingTransactionDecorator struct {
// contains filtered or unexported fields
}
EthVestingTransactionDecorator validates if clawback vesting accounts are permitted to perform Ethereum Tx.
func NewEthVestingTransactionDecorator ¶
func NewEthVestingTransactionDecorator(ak evmtypes.AccountKeeper) EthVestingTransactionDecorator
func (EthVestingTransactionDecorator) AnteHandle ¶
func (vtd EthVestingTransactionDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx, simulate bool, next sdk.AnteHandler) (newCtx sdk.Context, err error)
AnteHandle validates that a clawback vesting account has surpassed the vesting cliff and lockup period.
This AnteHandler decorator will fail if:
- the message is not a MsgEthereumTx
- sender account cannot be found
- sender account is not a ClawbackvestingAccount
- blocktime is before surpassing vesting cliff end (with zero vested coins) AND
- blocktime is before surpassing all lockup periods (with non-zero locked coins)
type EvmKeeper ¶
type EvmKeeper interface {
GetParams(ctx sdk.Context) (params evmtypes.Params)
ChainID() *big.Int
GetBaseFee(ctx sdk.Context, ethCfg *params.ChainConfig) *big.Int
}
EvmKeeper defines the expected keeper interface used on the AnteHandler
type HandlerOptions ¶
type HandlerOptions struct {
AccountKeeper evmtypes.AccountKeeper
BankKeeper evmtypes.BankKeeper
ExtensionOptionChecker ante.ExtensionOptionChecker
IBCKeeper *ibckeeper.Keeper
FeeMarketKeeper ethante.FeeMarketKeeper
StakingKeeper vestingtypes.StakingKeeper
EvmKeeper ethante.EVMKeeper
FeegrantKeeper ante.FeegrantKeeper
SignModeHandler authsigning.SignModeHandler
SigGasConsumer func(meter sdk.GasMeter, sig signing.SignatureV2, params authtypes.Params) error
Cdc codec.BinaryCodec
MaxTxGasWanted uint64
TxFeeChecker ante.TxFeeChecker
}
HandlerOptions defines the list of module keepers required to run the Evmos AnteHandler decorators.
func (HandlerOptions) Validate ¶
func (options HandlerOptions) Validate() error
Validate checks if the keepers are defined
type VestingDelegationDecorator ¶
type VestingDelegationDecorator struct {
// contains filtered or unexported fields
}
VestingDelegationDecorator validates delegation of vested coins
func NewVestingDelegationDecorator ¶
func NewVestingDelegationDecorator(ak evmtypes.AccountKeeper, sk vestingtypes.StakingKeeper, cdc codec.BinaryCodec) VestingDelegationDecorator
NewVestingDelegationDecorator creates a new VestingDelegationDecorator
func (VestingDelegationDecorator) AnteHandle ¶
func (vdd VestingDelegationDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx, simulate bool, next sdk.AnteHandler) (newCtx sdk.Context, err error)
AnteHandle checks if the tx contains a staking delegation. It errors if the coins are still locked or the bond amount is greater than the coins already vested
Source Files