Documentation
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Overview ¶
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
- func ConsumeMultisignatureVerificationGas(meter sdk.GasMeter, sig *signing.MultiSignatureData, pubkey multisig.PubKey, ...) error
- func NewAnteHandler(options HandlerOptions) sdk.AnteHandler
- func SigVerificationGasConsumer(meter sdk.GasMeter, sig signing.SignatureV2, params authtypes.Params) error
- type HandlerOptions
Constants ¶
const (
Secp256k1VerifyCost uint64 = 21000
)
Variables ¶
This section is empty.
Functions ¶
func ConsumeMultisignatureVerificationGas ¶
func ConsumeMultisignatureVerificationGas( meter sdk.GasMeter, sig *signing.MultiSignatureData, pubkey multisig.PubKey, params authtypes.Params, accSeq uint64, ) error
ConsumeMultisignatureVerificationGas consumes gas from a GasMeter for verifying a multisig pubkey signature
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.
func SigVerificationGasConsumer ¶
func SigVerificationGasConsumer( meter sdk.GasMeter, sig signing.SignatureV2, params authtypes.Params, ) error
SigVerificationGasConsumer is the Evmos implementation of SignatureVerificationGasConsumer. It consumes gas for signature verification based upon the public key type. The cost is fetched from the given params and is matched by the concrete type. The types of keys supported are:
- ethsecp256k1 (Ethereum keys)
- ed25519 (Validators)
- multisig (Cosmos SDK multisigs)
Types ¶
type HandlerOptions ¶
type HandlerOptions struct {
Cdc codec.BinaryCodec
AccountKeeper evmtypes.AccountKeeper
BankKeeper evmtypes.BankKeeper
DistributionKeeper anteutils.DistributionKeeper
IBCKeeper *ibckeeper.Keeper
StakingKeeper vestingtypes.StakingKeeper
FeeMarketKeeper evmante.FeeMarketKeeper
EvmKeeper evmante.EVMKeeper
FeegrantKeeper ante.FeegrantKeeper
ExtensionOptionChecker ante.ExtensionOptionChecker
SignModeHandler authsigning.SignModeHandler
SigGasConsumer func(meter sdk.GasMeter, sig signing.SignatureV2, params authtypes.Params) error
MaxTxGasWanted uint64
TxFeeChecker anteutils.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
Source Files
Directories