params

package
v0.6.12 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Nov 19, 2024 License: GPL-3.0, LGPL-3.0 Imports: 15 Imported by: 14

Documentation

Index

Constants

View Source 
const (

	// Consensus Params
	RollupWindow            uint64 = 10
	DynamicFeeExtraDataSize        = 80

	// For legacy tests
	MinGasPrice        int64 = 225_000_000_000
	TestInitialBaseFee int64 = 225_000_000_000
	TestMaxBaseFee     int64 = 225_000_000_000
)
View Source 
const (
	Wei   = 1
	GWei  = 1e9
	Ether = 1e18
)

These are the multipliers for ether denominations. Example: To get the wei value of an amount in 'gwei', use 

new(big.Int).Mul(value, big.NewInt(params.GWei))
View Source 
const (
	// BloomBitsBlocks is the number of blocks a single bloom bit section vector
	// contains on the server side.
	BloomBitsBlocks uint64 = 4096

	// BloomBitsBlocksClient is the number of blocks a single bloom bit section vector
	// contains on the light client side
	BloomBitsBlocksClient uint64 = 32768

	// BloomConfirms is the number of confirmation blocks before a bloom section is
	// considered probably final and its rotated bits are calculated.
	BloomConfirms = 256

	// CHTFrequency is the block frequency for creating CHTs
	CHTFrequency = 32768

	// BloomTrieFrequency is the block frequency for creating BloomTrie on both
	// server/client sides.
	BloomTrieFrequency = 32768

	// HelperTrieConfirmations is the number of confirmations before a client is expected
	// to have the given HelperTrie available.
	HelperTrieConfirmations = 2048

	// HelperTrieProcessConfirmations is the number of confirmations before a HelperTrie
	// is generated
	HelperTrieProcessConfirmations = 256

	// CheckpointFrequency is the block frequency for creating checkpoint
	CheckpointFrequency = 32768

	// CheckpointProcessConfirmations is the number before a checkpoint is generated
	CheckpointProcessConfirmations = 256

	// FullImmutabilityThreshold is the number of blocks after which a chain segment is
	// considered immutable (i.e. soft finality). It is used by the downloader as a
	// hard limit against deep ancestors, by the blockchain against deep reorgs, by
	// the freezer as the cutoff threshold and by clique as the snapshot trust limit.
	FullImmutabilityThreshold = 90000

	// LightImmutabilityThreshold is the number of blocks after which a header chain
	// segment is considered immutable for light client(i.e. soft finality). It is used by
	// the downloader as a hard limit against deep ancestors, by the blockchain against deep
	// reorgs, by the light pruner as the pruning validity guarantee.
	LightImmutabilityThreshold = 30000
)
View Source 
const (
	GasLimitBoundDivisor uint64 = 1024               // The bound divisor of the gas limit, used in update calculations.
	MinGasLimit          uint64 = 5000               // Minimum the gas limit may ever be.
	MaxGasLimit          uint64 = 0x7fffffffffffffff // Maximum the gas limit (2^63-1).
	GenesisGasLimit      uint64 = 4712388            // Gas limit of the Genesis block.

	MaximumExtraDataSize  uint64 = 64    // Maximum size extra data may be after Genesis.
	ExpByteGas            uint64 = 10    // Times ceil(log256(exponent)) for the EXP instruction.
	SloadGas              uint64 = 50    // Multiplied by the number of 32-byte words that are copied (round up) for any *COPY operation and added.
	CallValueTransferGas  uint64 = 9000  // Paid for CALL when the value transfer is non-zero.
	CallNewAccountGas     uint64 = 25000 // Paid for CALL when the destination address didn't exist prior.
	TxGas                 uint64 = 21000 // Per transaction not creating a contract. NOTE: Not payable on data of calls between transactions.
	TxGasContractCreation uint64 = 53000 // Per transaction that creates a contract. NOTE: Not payable on data of calls between transactions.
	TxDataZeroGas         uint64 = 4     // Per byte of data attached to a transaction that equals zero. NOTE: Not payable on data of calls between transactions.
	QuadCoeffDiv          uint64 = 512   // Divisor for the quadratic particle of the memory cost equation.
	LogDataGas            uint64 = 8     // Per byte in a LOG* operation's data.
	CallStipend           uint64 = 2300  // Free gas given at beginning of call.

	Keccak256Gas     uint64 = 30 // Once per KECCAK256 operation.
	Keccak256WordGas uint64 = 6  // Once per word of the KECCAK256 operation's data.
	InitCodeWordGas  uint64 = 2  // Once per word of the init code when creating a contract.

	SstoreSetGas    uint64 = 20000 // Once per SSTORE operation.
	SstoreResetGas  uint64 = 5000  // Once per SSTORE operation if the zeroness changes from zero.
	SstoreClearGas  uint64 = 5000  // Once per SSTORE operation if the zeroness doesn't change.
	SstoreRefundGas uint64 = 15000 // Once per SSTORE operation if the zeroness changes to zero.

	NetSstoreNoopGas  uint64 = 200   // Once per SSTORE operation if the value doesn't change.
	NetSstoreInitGas  uint64 = 20000 // Once per SSTORE operation from clean zero.
	NetSstoreCleanGas uint64 = 5000  // Once per SSTORE operation from clean non-zero.
	NetSstoreDirtyGas uint64 = 200   // Once per SSTORE operation from dirty.

	NetSstoreClearRefund      uint64 = 15000 // Once per SSTORE operation for clearing an originally existing storage slot
	NetSstoreResetRefund      uint64 = 4800  // Once per SSTORE operation for resetting to the original non-zero value
	NetSstoreResetClearRefund uint64 = 19800 // Once per SSTORE operation for resetting to the original zero value

	SstoreSentryGasEIP2200            uint64 = 2300  // Minimum gas required to be present for an SSTORE call, not consumed
	SstoreSetGasEIP2200               uint64 = 20000 // Once per SSTORE operation from clean zero to non-zero
	SstoreResetGasEIP2200             uint64 = 5000  // Once per SSTORE operation from clean non-zero to something else
	SstoreClearsScheduleRefundEIP2200 uint64 = 15000 // Once per SSTORE operation for clearing an originally existing storage slot

	ColdAccountAccessCostEIP2929 = uint64(2600) // COLD_ACCOUNT_ACCESS_COST
	ColdSloadCostEIP2929         = uint64(2100) // COLD_SLOAD_COST
	WarmStorageReadCostEIP2929   = uint64(100)  // WARM_STORAGE_READ_COST

	// In EIP-2200: SstoreResetGas was 5000.
	// In EIP-2929: SstoreResetGas was changed to '5000 - COLD_SLOAD_COST'.
	// In EIP-3529: SSTORE_CLEARS_SCHEDULE is defined as SSTORE_RESET_GAS + ACCESS_LIST_STORAGE_KEY_COST
	// Which becomes: 5000 - 2100 + 1900 = 4800
	SstoreClearsScheduleRefundEIP3529 uint64 = SstoreResetGasEIP2200 - ColdSloadCostEIP2929 + TxAccessListStorageKeyGas

	JumpdestGas   uint64 = 1     // Once per JUMPDEST operation.
	EpochDuration uint64 = 30000 // Duration between proof-of-work epochs.

	CreateDataGas         uint64 = 200   //
	CallCreateDepth       uint64 = 1024  // Maximum depth of call/create stack.
	ExpGas                uint64 = 10    // Once per EXP instruction
	LogGas                uint64 = 375   // Per LOG* operation.
	CopyGas               uint64 = 3     //
	StackLimit            uint64 = 1024  // Maximum size of VM stack allowed.
	TierStepGas           uint64 = 0     // Once per operation, for a selection of them.
	LogTopicGas           uint64 = 375   // Multiplied by the * of the LOG*, per LOG transaction. e.g. LOG0 incurs 0 * c_txLogTopicGas, LOG4 incurs 4 * c_txLogTopicGas.
	CreateGas             uint64 = 32000 // Once per CREATE operation & contract-creation transaction.
	Create2Gas            uint64 = 32000 // Once per CREATE2 operation
	SelfdestructRefundGas uint64 = 24000 // Refunded following a selfdestruct operation.
	MemoryGas             uint64 = 3     // Times the address of the (highest referenced byte in memory + 1). NOTE: referencing happens on read, write and in instructions such as RETURN and CALL.

	TxDataNonZeroGasFrontier  uint64 = 68   // Per byte of data attached to a transaction that is not equal to zero. NOTE: Not payable on data of calls between transactions.
	TxDataNonZeroGasEIP2028   uint64 = 16   // Per byte of non zero data attached to a transaction after EIP 2028 (part in Istanbul)
	TxAccessListAddressGas    uint64 = 2400 // Per address specified in EIP 2930 access list
	TxAccessListStorageKeyGas uint64 = 1900 // Per storage key specified in EIP 2930 access list

	// These have been changed during the course of the chain
	CallGasFrontier              uint64 = 40  // Once per CALL operation & message call transaction.
	CallGasEIP150                uint64 = 700 // Static portion of gas for CALL-derivates after EIP 150 (Tangerine)
	BalanceGasFrontier           uint64 = 20  // The cost of a BALANCE operation
	BalanceGasEIP150             uint64 = 400 // The cost of a BALANCE operation after Tangerine
	BalanceGasEIP1884            uint64 = 700 // The cost of a BALANCE operation after EIP 1884 (part of Istanbul)
	ExtcodeSizeGasFrontier       uint64 = 20  // Cost of EXTCODESIZE before EIP 150 (Tangerine)
	ExtcodeSizeGasEIP150         uint64 = 700 // Cost of EXTCODESIZE after EIP 150 (Tangerine)
	SloadGasFrontier             uint64 = 50
	SloadGasEIP150               uint64 = 200
	SloadGasEIP1884              uint64 = 800  // Cost of SLOAD after EIP 1884 (part of Istanbul)
	SloadGasEIP2200              uint64 = 800  // Cost of SLOAD after EIP 2200 (part of Istanbul)
	ExtcodeHashGasConstantinople uint64 = 400  // Cost of EXTCODEHASH (introduced in Constantinople)
	ExtcodeHashGasEIP1884        uint64 = 700  // Cost of EXTCODEHASH after EIP 1884 (part in Istanbul)
	SelfdestructGasEIP150        uint64 = 5000 // Cost of SELFDESTRUCT post EIP 150 (Tangerine)

	// EXP has a dynamic portion depending on the size of the exponent
	ExpByteFrontier uint64 = 10 // was set to 10 in Frontier
	ExpByteEIP158   uint64 = 50 // was raised to 50 during Eip158 (Spurious Dragon)

	// Extcodecopy has a dynamic AND a static cost. This represents only the
	// static portion of the gas. It was changed during EIP 150 (Tangerine)
	ExtcodeCopyBaseFrontier uint64 = 20
	ExtcodeCopyBaseEIP150   uint64 = 700

	// CreateBySelfdestructGas is used when the refunded account is one that does
	// not exist. This logic is similar to call.
	// Introduced in Tangerine Whistle (Eip 150)
	CreateBySelfdestructGas uint64 = 25000

	MaxCodeSize     = 24576           // Maximum bytecode to permit for a contract
	MaxInitCodeSize = 2 * MaxCodeSize // Maximum initcode to permit in a creation transaction and create instructions

	EcrecoverGas        uint64 = 3000 // Elliptic curve sender recovery gas price
	Sha256BaseGas       uint64 = 60   // Base price for a SHA256 operation
	Sha256PerWordGas    uint64 = 12   // Per-word price for a SHA256 operation
	Ripemd160BaseGas    uint64 = 600  // Base price for a RIPEMD160 operation
	Ripemd160PerWordGas uint64 = 120  // Per-word price for a RIPEMD160 operation
	IdentityBaseGas     uint64 = 15   // Base price for a data copy operation
	IdentityPerWordGas  uint64 = 3    // Per-work price for a data copy operation

	Bn256AddGasByzantium             uint64 = 500    // Byzantium gas needed for an elliptic curve addition
	Bn256AddGasIstanbul              uint64 = 150    // Gas needed for an elliptic curve addition
	Bn256ScalarMulGasByzantium       uint64 = 40000  // Byzantium gas needed for an elliptic curve scalar multiplication
	Bn256ScalarMulGasIstanbul        uint64 = 6000   // Gas needed for an elliptic curve scalar multiplication
	Bn256PairingBaseGasByzantium     uint64 = 100000 // Byzantium base price for an elliptic curve pairing check
	Bn256PairingBaseGasIstanbul      uint64 = 45000  // Base price for an elliptic curve pairing check
	Bn256PairingPerPointGasByzantium uint64 = 80000  // Byzantium per-point price for an elliptic curve pairing check
	Bn256PairingPerPointGasIstanbul  uint64 = 34000  // Per-point price for an elliptic curve pairing check

	Bls12381G1AddGas          uint64 = 600    // Price for BLS12-381 elliptic curve G1 point addition
	Bls12381G1MulGas          uint64 = 12000  // Price for BLS12-381 elliptic curve G1 point scalar multiplication
	Bls12381G2AddGas          uint64 = 4500   // Price for BLS12-381 elliptic curve G2 point addition
	Bls12381G2MulGas          uint64 = 55000  // Price for BLS12-381 elliptic curve G2 point scalar multiplication
	Bls12381PairingBaseGas    uint64 = 115000 // Base gas price for BLS12-381 elliptic curve pairing check
	Bls12381PairingPerPairGas uint64 = 23000  // Per-point pair gas price for BLS12-381 elliptic curve pairing check
	Bls12381MapG1Gas          uint64 = 5500   // Gas price for BLS12-381 mapping field element to G1 operation
	Bls12381MapG2Gas          uint64 = 110000 // Gas price for BLS12-381 mapping field element to G2 operation

	// The Refund Quotient is the cap on how much of the used gas can be refunded. Before EIP-3529,
	// up to half the consumed gas could be refunded. Redefined as 1/5th in EIP-3529
	RefundQuotient        uint64 = 2
	RefundQuotientEIP3529 uint64 = 5

	BlobTxBytesPerFieldElement         = 32      // Size in bytes of a field element
	BlobTxFieldElementsPerBlob         = 4096    // Number of field elements stored in a single data blob
	BlobTxBlobGasPerBlob               = 1 << 17 // Gas consumption of a single data blob (== blob byte size)
	BlobTxMinBlobGasprice              = 1       // Minimum gas price for data blobs
	BlobTxBlobGaspriceUpdateFraction   = 3338477 // Controls the maximum rate of change for blob gas price
	BlobTxPointEvaluationPrecompileGas = 50000   // Gas price for the point evaluation precompile.

	BlobTxTargetBlobGasPerBlock = 3 * BlobTxBlobGasPerBlob // Target consumable blob gas for data blobs per block (for 1559-like pricing)
	MaxBlobGasPerBlock          = 6 * BlobTxBlobGasPerBlob // Maximum consumable blob gas for data blobs per block
)
View Source 
const (
	VersionMajor = 1        // Major version component of the current release
	VersionMinor = 13       // Minor version component of the current release
	VersionPatch = 14       // Patch version component of the current release
	VersionMeta  = "stable" // Version metadata to append to the version string
)

Variables

View Source 
var (
	// SubnetEVMDefaultConfig is the default configuration
	// without any network upgrades.
	SubnetEVMDefaultChainConfig = &ChainConfig{
		ChainID:            DefaultChainID,
		FeeConfig:          DefaultFeeConfig,
		AllowFeeRecipients: false,

		HomesteadBlock:      big.NewInt(0),
		EIP150Block:         big.NewInt(0),
		EIP155Block:         big.NewInt(0),
		EIP158Block:         big.NewInt(0),
		ByzantiumBlock:      big.NewInt(0),
		ConstantinopleBlock: big.NewInt(0),
		PetersburgBlock:     big.NewInt(0),
		IstanbulBlock:       big.NewInt(0),
		MuirGlacierBlock:    big.NewInt(0),
		BerlinBlock:         big.NewInt(0),
		LondonBlock:         big.NewInt(0),
		NetworkUpgrades:     getDefaultNetworkUpgrades(upgrade.GetConfig(constants.MainnetID)),
		GenesisPrecompiles:  Precompiles{},
	}

	TestPreSubnetEVMChainConfig = &ChainConfig{
		AvalancheContext:    AvalancheContext{utils.TestSnowContext()},
		ChainID:             big.NewInt(1),
		FeeConfig:           DefaultFeeConfig,
		AllowFeeRecipients:  false,
		HomesteadBlock:      big.NewInt(0),
		EIP150Block:         big.NewInt(0),
		EIP155Block:         big.NewInt(0),
		EIP158Block:         big.NewInt(0),
		ByzantiumBlock:      big.NewInt(0),
		ConstantinopleBlock: big.NewInt(0),
		PetersburgBlock:     big.NewInt(0),
		IstanbulBlock:       big.NewInt(0),
		MuirGlacierBlock:    big.NewInt(0),
		BerlinBlock:         big.NewInt(0),
		LondonBlock:         big.NewInt(0),
		NetworkUpgrades: NetworkUpgrades{
			SubnetEVMTimestamp: utils.TimeToNewUint64(upgrade.UnscheduledActivationTime),
			DurangoTimestamp:   utils.TimeToNewUint64(upgrade.UnscheduledActivationTime),
			EtnaTimestamp:      utils.TimeToNewUint64(upgrade.UnscheduledActivationTime),
		},
		GenesisPrecompiles: Precompiles{},
		UpgradeConfig:      UpgradeConfig{},
	}

	TestSubnetEVMChainConfig = &ChainConfig{
		AvalancheContext:    AvalancheContext{utils.TestSnowContext()},
		ChainID:             big.NewInt(1),
		FeeConfig:           DefaultFeeConfig,
		AllowFeeRecipients:  false,
		HomesteadBlock:      big.NewInt(0),
		EIP150Block:         big.NewInt(0),
		EIP155Block:         big.NewInt(0),
		EIP158Block:         big.NewInt(0),
		ByzantiumBlock:      big.NewInt(0),
		ConstantinopleBlock: big.NewInt(0),
		PetersburgBlock:     big.NewInt(0),
		IstanbulBlock:       big.NewInt(0),
		MuirGlacierBlock:    big.NewInt(0),
		BerlinBlock:         big.NewInt(0),
		LondonBlock:         big.NewInt(0),
		NetworkUpgrades: NetworkUpgrades{
			SubnetEVMTimestamp: utils.NewUint64(0),
			DurangoTimestamp:   utils.TimeToNewUint64(upgrade.UnscheduledActivationTime),
			EtnaTimestamp:      utils.TimeToNewUint64(upgrade.UnscheduledActivationTime),
		},
		GenesisPrecompiles: Precompiles{},
		UpgradeConfig:      UpgradeConfig{},
	}

	TestDurangoChainConfig = &ChainConfig{
		AvalancheContext:    AvalancheContext{utils.TestSnowContext()},
		ChainID:             big.NewInt(1),
		FeeConfig:           DefaultFeeConfig,
		AllowFeeRecipients:  false,
		HomesteadBlock:      big.NewInt(0),
		EIP150Block:         big.NewInt(0),
		EIP155Block:         big.NewInt(0),
		EIP158Block:         big.NewInt(0),
		ByzantiumBlock:      big.NewInt(0),
		ConstantinopleBlock: big.NewInt(0),
		PetersburgBlock:     big.NewInt(0),
		IstanbulBlock:       big.NewInt(0),
		MuirGlacierBlock:    big.NewInt(0),
		BerlinBlock:         big.NewInt(0),
		LondonBlock:         big.NewInt(0),
		ShanghaiTime:        utils.TimeToNewUint64(upgrade.InitiallyActiveTime),
		NetworkUpgrades: NetworkUpgrades{
			SubnetEVMTimestamp: utils.NewUint64(0),
			DurangoTimestamp:   utils.TimeToNewUint64(upgrade.InitiallyActiveTime),
			EtnaTimestamp:      utils.TimeToNewUint64(upgrade.UnscheduledActivationTime),
		},
		GenesisPrecompiles: Precompiles{},
		UpgradeConfig:      UpgradeConfig{},
	}

	TestEtnaChainConfig = &ChainConfig{
		AvalancheContext:    AvalancheContext{utils.TestSnowContext()},
		ChainID:             big.NewInt(1),
		FeeConfig:           DefaultFeeConfig,
		AllowFeeRecipients:  false,
		HomesteadBlock:      big.NewInt(0),
		EIP150Block:         big.NewInt(0),
		EIP155Block:         big.NewInt(0),
		EIP158Block:         big.NewInt(0),
		ByzantiumBlock:      big.NewInt(0),
		ConstantinopleBlock: big.NewInt(0),
		PetersburgBlock:     big.NewInt(0),
		IstanbulBlock:       big.NewInt(0),
		MuirGlacierBlock:    big.NewInt(0),
		BerlinBlock:         big.NewInt(0),
		LondonBlock:         big.NewInt(0),
		ShanghaiTime:        utils.TimeToNewUint64(upgrade.InitiallyActiveTime),
		CancunTime:          utils.TimeToNewUint64(upgrade.InitiallyActiveTime),
		NetworkUpgrades: NetworkUpgrades{
			SubnetEVMTimestamp: utils.NewUint64(0),
			DurangoTimestamp:   utils.TimeToNewUint64(upgrade.InitiallyActiveTime),
			EtnaTimestamp:      utils.TimeToNewUint64(upgrade.InitiallyActiveTime),
		},
		GenesisPrecompiles: Precompiles{},
		UpgradeConfig:      UpgradeConfig{},
	}

	TestChainConfig = TestEtnaChainConfig
	TestRules       = TestChainConfig.Rules(new(big.Int), 0)
)
View Source 
var (
	DefaultChainID = big.NewInt(43214)

	DefaultFeeConfig = commontype.FeeConfig{
		GasLimit:        big.NewInt(8_000_000),
		TargetBlockRate: 2,

		MinBaseFee:               big.NewInt(25_000_000_000),
		TargetGas:                big.NewInt(15_000_000),
		BaseFeeChangeDenominator: big.NewInt(36),

		MinBlockGasCost:  big.NewInt(0),
		MaxBlockGasCost:  big.NewInt(1_000_000),
		BlockGasCostStep: big.NewInt(200_000),
	}
)
View Source 
var (
	DifficultyBoundDivisor = big.NewInt(2048)   // The bound divisor of the difficulty, used in the update calculations.
	GenesisDifficulty      = big.NewInt(131072) // Difficulty of the Genesis block.
	MinimumDifficulty      = big.NewInt(131072) // The minimum that the difficulty may ever be.
	DurationLimit          = big.NewInt(13)     // The decision boundary on the blocktime duration used to determine whether difficulty should go up or not.

	// BeaconRootsStorageAddress is the address where historical beacon roots are stored as per EIP-4788
	BeaconRootsStorageAddress = common.HexToAddress("0x000F3df6D732807Ef1319fB7B8bB8522d0Beac02")
	// SystemAddress is where the system-transaction is sent from as per EIP-4788
	SystemAddress common.Address = common.HexToAddress("0xfffffffffffffffffffffffffffffffffffffffe")
)
View Source 
var Bls12381MultiExpDiscountTable = [128]uint64{} /* 128 elements not displayed */

Gas discount table for BLS12-381 G1 and G2 multi exponentiation operations

View Source 
var Version = func() string {
	return fmt.Sprintf("%d.%d.%d", VersionMajor, VersionMinor, VersionPatch)
}()

Version holds the textual version string.

View Source 
var VersionWithMeta = func() string {
	v := Version
	if VersionMeta != "" {
		v += "-" + VersionMeta
	}
	return v
}()

VersionWithMeta holds the textual version string including the metadata.

Functions

func IsForkTransition added in v0.6.9 

func IsForkTransition(fork *uint64, parent *uint64, current uint64) bool

IsForkTransition returns true if [fork] activates during the transition from [parent] to [current]. Taking [parent] as a pointer allows for us to pass nil when checking forks that activate during genesis. Note: this works for both block number and timestamp activated forks.

func VersionWithCommit added in v0.2.5 

func VersionWithCommit(gitCommit, gitDate string) string

Types

type AvalancheContext added in v0.4.4 

type AvalancheContext struct {
	SnowCtx *snow.Context
}

AvalancheContext provides Avalanche specific context directly into the EVM.

type AvalancheRules added in v0.6.4 

type AvalancheRules struct {
	IsSubnetEVM bool
	IsDurango   bool
	IsEtna      bool
}

type ChainConfig 

type ChainConfig struct {
	ChainID *big.Int `json:"chainId"` // chainId identifies the current chain and is used for replay protection

	HomesteadBlock *big.Int `json:"homesteadBlock,omitempty"` // Homestead switch block (nil = no fork, 0 = already homestead)

	// EIP150 implements the Gas price changes (https://github.com/ethereum/EIPs/issues/150)
	EIP150Block *big.Int `json:"eip150Block,omitempty"` // EIP150 HF block (nil = no fork)
	EIP155Block *big.Int `json:"eip155Block,omitempty"` // EIP155 HF block
	EIP158Block *big.Int `json:"eip158Block,omitempty"` // EIP158 HF block

	ByzantiumBlock      *big.Int `json:"byzantiumBlock,omitempty"`      // Byzantium switch block (nil = no fork, 0 = already on byzantium)
	ConstantinopleBlock *big.Int `json:"constantinopleBlock,omitempty"` // Constantinople switch block (nil = no fork, 0 = already activated)
	PetersburgBlock     *big.Int `json:"petersburgBlock,omitempty"`     // Petersburg switch block (nil = same as Constantinople)
	IstanbulBlock       *big.Int `json:"istanbulBlock,omitempty"`       // Istanbul switch block (nil = no fork, 0 = already on istanbul)
	MuirGlacierBlock    *big.Int `json:"muirGlacierBlock,omitempty"`    // Eip-2384 (bomb delay) switch block (nil = no fork, 0 = already activated)
	BerlinBlock         *big.Int `json:"berlinBlock,omitempty"`         // Berlin switch block (nil = no fork, 0 = already on berlin)
	LondonBlock         *big.Int `json:"londonBlock,omitempty"`         // London switch block (nil = no fork, 0 = already on london)

	ShanghaiTime *uint64 `json:"shanghaiTime,omitempty"` // Shanghai switch time (nil = no fork, 0 = already on shanghai)
	CancunTime   *uint64 `json:"cancunTime,omitempty"`   // Cancun switch time (nil = no fork, 0 = already activated)
	VerkleTime   *uint64 `json:"verkleTime,omitempty"`   // Verkle switch time (nil = no fork, 0 = already on verkle)

	NetworkUpgrades // Config for timestamps that enable network upgrades. Skip encoding/decoding directly into ChainConfig.

	AvalancheContext `json:"-"` // Avalanche specific context set during VM initialization. Not serialized.

	FeeConfig          commontype.FeeConfig `json:"feeConfig"`                    // Set the configuration for the dynamic fee algorithm
	AllowFeeRecipients bool                 `json:"allowFeeRecipients,omitempty"` // Allows fees to be collected by block builders.

	GenesisPrecompiles Precompiles `json:"-"` // Config for enabling precompiles from genesis. JSON encode/decode will be handled by the custom marshaler/unmarshaler.
	UpgradeConfig      `json:"-"`  // Config specified in upgradeBytes (avalanche network upgrades or enable/disabling precompiles). Skip encoding/decoding directly into ChainConfig.
}

ChainConfig is the core config which determines the blockchain settings.

ChainConfig is stored in the database on a per block basis. This means that any network, identified by its genesis block, can have its own set of configuration options.

func (*ChainConfig) AllowedFeeRecipients added in v0.4.4 

func (c *ChainConfig) AllowedFeeRecipients() bool

AllowedFeeRecipients returns the original AllowedFeeRecipients parameter contained in the genesis ChainConfig. Implements precompile.ChainConfig interface.

func (*ChainConfig) CheckCompatible 

func (c *ChainConfig) CheckCompatible(newcfg *ChainConfig, height uint64, time uint64) *ConfigCompatError

CheckCompatible checks whether scheduled fork transitions have been imported with a mismatching chain configuration.

func (*ChainConfig) CheckConfigForkOrder 

func (c *ChainConfig) CheckConfigForkOrder() error

CheckConfigForkOrder checks that we don't "skip" any forks, geth isn't pluggable enough to guarantee that forks can be implemented in a different order than on official networks

func (*ChainConfig) CheckPrecompilesCompatible added in v0.2.8 

func (c *ChainConfig) CheckPrecompilesCompatible(precompileUpgrades []PrecompileUpgrade, time uint64) *ConfigCompatError

CheckPrecompilesCompatible checks if [precompileUpgrades] are compatible with [c] at [headTimestamp]. Returns a ConfigCompatError if upgrades already activated at [headTimestamp] are missing from [precompileUpgrades]. Upgrades not already activated may be modified or absent from [precompileUpgrades]. Returns nil if [precompileUpgrades] is compatible with [c]. Assumes given timestamp is the last accepted block timestamp. This ensures that as long as the node has not accepted a block with a different rule set it will allow a new upgrade to be applied as long as it activates after the last accepted block.

func (*ChainConfig) CheckStateUpgradesCompatible added in v0.4.12 

func (c *ChainConfig) CheckStateUpgradesCompatible(stateUpgrades []StateUpgrade, lastTimestamp uint64) *ConfigCompatError

CheckStateUpgradesCompatible checks if [stateUpgrades] are compatible with [c] at [headTimestamp].

func (*ChainConfig) Description added in v0.5.3 

func (c *ChainConfig) Description() string

Description returns a human-readable description of ChainConfig.

func (*ChainConfig) EnabledStatefulPrecompiles added in v0.2.8 

func (c *ChainConfig) EnabledStatefulPrecompiles(blockTimestamp uint64) Precompiles

EnabledStatefulPrecompiles returns current stateful precompile configs that are enabled at [blockTimestamp].

func (*ChainConfig) GetActivatingPrecompileConfigs added in v0.4.10 

func (c *ChainConfig) GetActivatingPrecompileConfigs(address common.Address, from *uint64, to uint64, upgrades []PrecompileUpgrade) []precompileconfig.Config

GetActivatingPrecompileConfigs returns all precompile upgrades configured to activate during the state transition from a block with timestamp [from] to a block with timestamp [to].

func (*ChainConfig) GetActivatingStateUpgrades added in v0.4.12 

func (c *ChainConfig) GetActivatingStateUpgrades(from *uint64, to uint64, upgrades []StateUpgrade) []StateUpgrade

GetActivatingStateUpgrades returns all state upgrades configured to activate during the state transition from a block with timestamp [from] to a block with timestamp [to].

func (*ChainConfig) GetFeeConfig 

func (c *ChainConfig) GetFeeConfig() commontype.FeeConfig

GetFeeConfig returns the original FeeConfig contained in the genesis ChainConfig. Implements precompile.ChainConfig interface.

func (*ChainConfig) IsBerlin added in v0.6.10 

func (c *ChainConfig) IsBerlin(num *big.Int) bool

IsBerlin returns whether num is either equal to the Berlin fork block or greater.

func (*ChainConfig) IsByzantium 

func (c *ChainConfig) IsByzantium(num *big.Int) bool

IsByzantium returns whether num is either equal to the Byzantium fork block or greater.

func (*ChainConfig) IsCancun added in v0.5.9 

func (c *ChainConfig) IsCancun(num *big.Int, time uint64) bool

IsCancun returns whether num is either equal to the Cancun fork time or greater.

func (*ChainConfig) IsConstantinople 

func (c *ChainConfig) IsConstantinople(num *big.Int) bool

IsConstantinople returns whether num is either equal to the Constantinople fork block or greater.

func (*ChainConfig) IsEIP150 

func (c *ChainConfig) IsEIP150(num *big.Int) bool

IsEIP150 returns whether num is either equal to the EIP150 fork block or greater.

func (*ChainConfig) IsEIP155 

func (c *ChainConfig) IsEIP155(num *big.Int) bool

IsEIP155 returns whether num is either equal to the EIP155 fork block or greater.

func (*ChainConfig) IsEIP158 

func (c *ChainConfig) IsEIP158(num *big.Int) bool

IsEIP158 returns whether num is either equal to the EIP158 fork block or greater.

func (*ChainConfig) IsHomestead 

func (c *ChainConfig) IsHomestead(num *big.Int) bool

IsHomestead returns whether num is either equal to the homestead block or greater.

func (*ChainConfig) IsIstanbul 

func (c *ChainConfig) IsIstanbul(num *big.Int) bool

IsIstanbul returns whether num is either equal to the Istanbul fork block or greater.

func (*ChainConfig) IsLondon added in v0.6.10 

func (c *ChainConfig) IsLondon(num *big.Int) bool

IsLondon returns whether num is either equal to the London fork block or greater.

func (*ChainConfig) IsMuirGlacier 

func (c *ChainConfig) IsMuirGlacier(num *big.Int) bool

IsMuirGlacier returns whether num is either equal to the Muir Glacier (EIP-2384) fork block or greater.

func (*ChainConfig) IsPetersburg 

func (c *ChainConfig) IsPetersburg(num *big.Int) bool

IsPetersburg returns whether num is either - equal to or greater than the PetersburgBlock fork block, - OR is nil, and Constantinople is active

func (*ChainConfig) IsPrecompileEnabled added in v0.4.10 

func (c *ChainConfig) IsPrecompileEnabled(address common.Address, timestamp uint64) bool

IsPrecompileEnabled returns whether precompile with [address] is enabled at [timestamp].

func (*ChainConfig) IsShanghai added in v0.6.10 

func (c *ChainConfig) IsShanghai(num *big.Int, time uint64) bool

IsShanghai returns whether time is either equal to the Shanghai fork time or greater.

func (*ChainConfig) IsVerkle added in v0.6.5 

func (c *ChainConfig) IsVerkle(num *big.Int, time uint64) bool

IsVerkle returns whether num is either equal to the Verkle fork time or greater.

func (ChainConfig) MarshalJSON added in v0.4.10 

func (c ChainConfig) MarshalJSON() ([]byte, error)

MarshalJSON returns the JSON encoding of c. This is a custom marshaler to handle the Precompiles field.

func (*ChainConfig) Rules added in v0.6.3 

func (c *ChainConfig) Rules(blockNum *big.Int, timestamp uint64) Rules

Rules returns the Avalanche modified rules to support Avalanche network upgrades

func (*ChainConfig) SetEthUpgrades added in v0.6.9 

func (c *ChainConfig) SetEthUpgrades(avalancheUpgrades NetworkUpgrades)

SetEthUpgrades sets the mapped upgrades Avalanche > EVM upgrades) for the chain config.

func (*ChainConfig) SetNetworkUpgradeDefaults added in v0.6.3 

func (c *ChainConfig) SetNetworkUpgradeDefaults()

func (*ChainConfig) ToWithUpgradesJSON added in v0.4.12 

func (c *ChainConfig) ToWithUpgradesJSON() *ChainConfigWithUpgradesJSON

ToWithUpgradesJSON converts the ChainConfig to ChainConfigWithUpgradesJSON with upgrades explicitly displayed. ChainConfig does not include upgrades in its JSON output. This is a workaround for showing upgrades in the JSON output.

func (*ChainConfig) UnmarshalJSON added in v0.4.10 

func (c *ChainConfig) UnmarshalJSON(data []byte) error

UnmarshalJSON parses the JSON-encoded data and stores the result in the object pointed to by c. This is a custom unmarshaler to handle the Precompiles field. Precompiles was presented as an inline object in the JSON. This custom unmarshaler ensures backwards compatibility with the old format.

func (*ChainConfig) Verify added in v0.2.5 

func (c *ChainConfig) Verify() error

Verify verifies chain config and returns error

type ChainConfigWithUpgradesJSON added in v0.4.12 

type ChainConfigWithUpgradesJSON struct {
	ChainConfig
	UpgradeConfig UpgradeConfig `json:"upgrades,omitempty"`
}

func (ChainConfigWithUpgradesJSON) MarshalJSON added in v0.4.12 

func (cu ChainConfigWithUpgradesJSON) MarshalJSON() ([]byte, error)

MarshalJSON implements json.Marshaler. This is a workaround for the fact that the embedded ChainConfig struct has a MarshalJSON method, which prevents the default JSON marshalling from working for UpgradeConfig. TODO: consider removing this method by allowing external tag for the embedded ChainConfig struct.

func (*ChainConfigWithUpgradesJSON) UnmarshalJSON added in v0.4.12 

func (cu *ChainConfigWithUpgradesJSON) UnmarshalJSON(input []byte) error

type ConfigCompatError 

type ConfigCompatError struct {
	What string

	// block numbers of the stored and new configurations if block based forking
	StoredBlock, NewBlock *big.Int

	// timestamps of the stored and new configurations if time based forking
	StoredTime, NewTime *uint64

	// the block number to which the local chain must be rewound to correct the error
	RewindToBlock uint64

	// the timestamp to which the local chain must be rewound to correct the error
	RewindToTime uint64
}

ConfigCompatError is raised if the locally-stored blockchain is initialised with a ChainConfig that would alter the past.

func (*ConfigCompatError) Error 

func (err *ConfigCompatError) Error() string

type EthRules added in v0.6.6 

type EthRules struct {
	IsHomestead, IsEIP150, IsEIP155, IsEIP158               bool
	IsByzantium, IsConstantinople, IsPetersburg, IsIstanbul bool
	IsCancun                                                bool
	IsVerkle                                                bool
}

type NetworkUpgrades added in v0.2.8 

type NetworkUpgrades struct {
	// SubnetEVMTimestamp is a placeholder that activates Avalanche Upgrades prior to ApricotPhase6
	SubnetEVMTimestamp *uint64 `json:"subnetEVMTimestamp,omitempty"`
	// Durango activates the Shanghai Execution Spec Upgrade from Ethereum (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/shanghai.md#included-eips)
	// and Avalanche Warp Messaging.
	// Note: EIP-4895 is excluded since withdrawals are not relevant to the Avalanche C-Chain or Subnets running the EVM.
	DurangoTimestamp *uint64 `json:"durangoTimestamp,omitempty"`
	// Placeholder for EtnaTimestamp
	EtnaTimestamp *uint64 `json:"etnaTimestamp,omitempty"`
}

NetworkUpgrades contains timestamps that enable network upgrades. Avalanche specific network upgrades are also included here.

func (*NetworkUpgrades) CheckNetworkUpgradesCompatible added in v0.6.3 

func (n *NetworkUpgrades) CheckNetworkUpgradesCompatible(newcfg *NetworkUpgrades, time uint64) *ConfigCompatError

func (*NetworkUpgrades) Description added in v0.6.4 

func (n *NetworkUpgrades) Description() string

func (*NetworkUpgrades) Equal added in v0.6.3 

func (n *NetworkUpgrades) Equal(other *NetworkUpgrades) bool

func (*NetworkUpgrades) GetAvalancheRules added in v0.6.4 

func (n *NetworkUpgrades) GetAvalancheRules(time uint64) AvalancheRules

func (*NetworkUpgrades) IsDurango added in v0.6.4 

func (n *NetworkUpgrades) IsDurango(time uint64) bool

IsDurango returns whether time represents a block with a timestamp after the Durango upgrade time.

func (*NetworkUpgrades) IsEtna added in v0.6.9 

func (n *NetworkUpgrades) IsEtna(time uint64) bool

IsEtna returns whether time represents a block with a timestamp after the Etna upgrade time.

func (*NetworkUpgrades) IsSubnetEVM added in v0.6.4 

func (n *NetworkUpgrades) IsSubnetEVM(time uint64) bool

IsSubnetEVM returns whether time represents a block with a timestamp after the SubnetEVM upgrade time.

func (*NetworkUpgrades) Override added in v0.6.3 

func (n *NetworkUpgrades) Override(o *NetworkUpgrades)

type PrecompileUpgrade added in v0.2.8 

type PrecompileUpgrade struct {
	precompileconfig.Config
}

PrecompileUpgrade is a helper struct embedded in UpgradeConfig. It is used to unmarshal the json into the correct precompile config type based on the key. Keys are defined in each precompile module, and registered in precompile/registry/registry.go.

func (*PrecompileUpgrade) MarshalJSON added in v0.4.10 

func (u *PrecompileUpgrade) MarshalJSON() ([]byte, error)

MarshalJSON marshal the precompile config into json based on the precompile key. Ex: {"feeManagerConfig": {...}} where "feeManagerConfig" is the key

func (*PrecompileUpgrade) UnmarshalJSON added in v0.4.10 

func (u *PrecompileUpgrade) UnmarshalJSON(data []byte) error

UnmarshalJSON unmarshals the json into the correct precompile config type based on the key. Keys are defined in each precompile module, and registered in precompile/registry/registry.go. Ex: {"feeManagerConfig": {...}} where "feeManagerConfig" is the key

type Precompiles added in v0.4.10 

type Precompiles map[string]precompileconfig.Config

func (*Precompiles) UnmarshalJSON added in v0.4.10 

func (ccp *Precompiles) UnmarshalJSON(data []byte) error

UnmarshalJSON parses the JSON-encoded data into the ChainConfigPrecompiles. ChainConfigPrecompiles is a map of precompile module keys to their configuration.

type Rules 

type Rules struct {
	ChainID *big.Int

	// Rules for Ethereum releases
	EthRules

	// Rules for Avalanche releases
	AvalancheRules

	// ActivePrecompiles maps addresses to stateful precompiled contracts that are enabled
	// for this rule set.
	// Note: none of these addresses should conflict with the address space used by
	// any existing precompiles.
	ActivePrecompiles map[common.Address]precompileconfig.Config
	// Predicaters maps addresses to stateful precompile Predicaters
	// that are enabled for this rule set.
	Predicaters map[common.Address]precompileconfig.Predicater
	// AccepterPrecompiles map addresses to stateful precompile accepter functions
	// that are enabled for this rule set.
	AccepterPrecompiles map[common.Address]precompileconfig.Accepter
}

Rules wraps ChainConfig and is merely syntactic sugar or can be used for functions that do not have or require information about the block.

Rules is a one time interface meaning that it shouldn't be used in between transition phases.

func (*Rules) IsPrecompileEnabled added in v0.4.10 

func (r *Rules) IsPrecompileEnabled(addr common.Address) bool

IsPrecompileEnabled returns true if the precompile at [addr] is enabled for this rule set.

func (*Rules) PredicaterExists added in v0.5.7 

func (r *Rules) PredicaterExists(addr common.Address) bool

func (*Rules) PredicatersExist added in v0.5.7 

func (r *Rules) PredicatersExist() bool

type StateUpgrade added in v0.4.12 

type StateUpgrade struct {
	BlockTimestamp *uint64 `json:"blockTimestamp,omitempty"`

	// map from account address to the modification to be made to the account.
	StateUpgradeAccounts map[common.Address]StateUpgradeAccount `json:"accounts"`
}

StateUpgrade describes the modifications to be made to the state during a state upgrade.

func (*StateUpgrade) Equal added in v0.4.12 

func (s *StateUpgrade) Equal(other *StateUpgrade) bool

type StateUpgradeAccount added in v0.4.12 

type StateUpgradeAccount struct {
	Code          hexutil.Bytes               `json:"code,omitempty"`
	Storage       map[common.Hash]common.Hash `json:"storage,omitempty"`
	BalanceChange *math.HexOrDecimal256       `json:"balanceChange,omitempty"`
}

StateUpgradeAccount describes the modifications to be made to an account during a state upgrade.

type UpgradeConfig added in v0.2.8 

type UpgradeConfig struct {
	// Config for timestamps that enable network upgrades.
	NetworkUpgradeOverrides *NetworkUpgrades `json:"networkUpgradeOverrides,omitempty"`

	// Config for modifying state as a network upgrade.
	StateUpgrades []StateUpgrade `json:"stateUpgrades,omitempty"`

	// Config for enabling and disabling precompiles as network upgrades.
	PrecompileUpgrades []PrecompileUpgrade `json:"precompileUpgrades,omitempty"`
}

UpgradeConfig includes the following configs that may be specified in upgradeBytes: - Timestamps that enable avalanche network upgrades, - Enabling or disabling precompiles as network upgrades.

Source Files

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