github.com/xfers/quorum@v21.1.0+incompatible/params/protocol_params.go (about)

     1  // Copyright 2015 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package params
    18  
    19  import "math/big"
    20  
    21  const (
    22  	// these are original values from upstream Geth, used in ethash consensus
    23  	OriginalMinGasLimit          uint64 = 5000 // The bound divisor of the gas limit, used in update calculations.
    24  	OriginalGasLimitBoundDivisor uint64 = 1024 // Minimum the gas limit may ever be.
    25  
    26  	// modified values for Quorum
    27  	GasLimitBoundDivisor uint64 = 4096      // The bound divisor of the gas limit, used in update calculations.
    28  	MinGasLimit          uint64 = 700000000 // Minimum the gas limit may ever be.
    29  	GenesisGasLimit      uint64 = 800000000 // Gas limit of the Genesis block.
    30  
    31  	MaximumExtraDataSize  uint64 = 32    // Maximum size extra data may be after Genesis.
    32  	ExpByteGas            uint64 = 10    // Times ceil(log256(exponent)) for the EXP instruction.
    33  	SloadGas              uint64 = 50    // Multiplied by the number of 32-byte words that are copied (round up) for any *COPY operation and added.
    34  	CallValueTransferGas  uint64 = 9000  // Paid for CALL when the value transfer is non-zero.
    35  	CallNewAccountGas     uint64 = 25000 // Paid for CALL when the destination address didn't exist prior.
    36  	TxGas                 uint64 = 21000 // Per transaction not creating a contract. NOTE: Not payable on data of calls between transactions.
    37  	TxGasContractCreation uint64 = 53000 // Per transaction that creates a contract. NOTE: Not payable on data of calls between transactions.
    38  	TxDataZeroGas         uint64 = 4     // Per byte of data attached to a transaction that equals zero. NOTE: Not payable on data of calls between transactions.
    39  	QuadCoeffDiv          uint64 = 512   // Divisor for the quadratic particle of the memory cost equation.
    40  	LogDataGas            uint64 = 8     // Per byte in a LOG* operation's data.
    41  	CallStipend           uint64 = 2300  // Free gas given at beginning of call.
    42  
    43  	Sha3Gas     uint64 = 30 // Once per SHA3 operation.
    44  	Sha3WordGas uint64 = 6  // Once per word of the SHA3 operation's data.
    45  
    46  	SstoreSetGas    uint64 = 20000 // Once per SLOAD operation.
    47  	SstoreResetGas  uint64 = 5000  // Once per SSTORE operation if the zeroness changes from zero.
    48  	SstoreClearGas  uint64 = 5000  // Once per SSTORE operation if the zeroness doesn't change.
    49  	SstoreRefundGas uint64 = 15000 // Once per SSTORE operation if the zeroness changes to zero.
    50  
    51  	NetSstoreNoopGas  uint64 = 200   // Once per SSTORE operation if the value doesn't change.
    52  	NetSstoreInitGas  uint64 = 20000 // Once per SSTORE operation from clean zero.
    53  	NetSstoreCleanGas uint64 = 5000  // Once per SSTORE operation from clean non-zero.
    54  	NetSstoreDirtyGas uint64 = 200   // Once per SSTORE operation from dirty.
    55  
    56  	NetSstoreClearRefund      uint64 = 15000 // Once per SSTORE operation for clearing an originally existing storage slot
    57  	NetSstoreResetRefund      uint64 = 4800  // Once per SSTORE operation for resetting to the original non-zero value
    58  	NetSstoreResetClearRefund uint64 = 19800 // Once per SSTORE operation for resetting to the original zero value
    59  
    60  	SstoreSentryGasEIP2200   uint64 = 2300  // Minimum gas required to be present for an SSTORE call, not consumed
    61  	SstoreNoopGasEIP2200     uint64 = 800   // Once per SSTORE operation if the value doesn't change.
    62  	SstoreDirtyGasEIP2200    uint64 = 800   // Once per SSTORE operation if a dirty value is changed.
    63  	SstoreInitGasEIP2200     uint64 = 20000 // Once per SSTORE operation from clean zero to non-zero
    64  	SstoreInitRefundEIP2200  uint64 = 19200 // Once per SSTORE operation for resetting to the original zero value
    65  	SstoreCleanGasEIP2200    uint64 = 5000  // Once per SSTORE operation from clean non-zero to something else
    66  	SstoreCleanRefundEIP2200 uint64 = 4200  // Once per SSTORE operation for resetting to the original non-zero value
    67  	SstoreClearRefundEIP2200 uint64 = 15000 // Once per SSTORE operation for clearing an originally existing storage slot
    68  
    69  	JumpdestGas   uint64 = 1     // Once per JUMPDEST operation.
    70  	EpochDuration uint64 = 30000 // Duration between proof-of-work epochs.
    71  
    72  	CreateDataGas            uint64 = 200   //
    73  	CallCreateDepth          uint64 = 1024  // Maximum depth of call/create stack.
    74  	ExpGas                   uint64 = 10    // Once per EXP instruction
    75  	LogGas                   uint64 = 375   // Per LOG* operation.
    76  	CopyGas                  uint64 = 3     //
    77  	StackLimit               uint64 = 1024  // Maximum size of VM stack allowed.
    78  	TierStepGas              uint64 = 0     // Once per operation, for a selection of them.
    79  	LogTopicGas              uint64 = 375   // Multiplied by the * of the LOG*, per LOG transaction. e.g. LOG0 incurs 0 * c_txLogTopicGas, LOG4 incurs 4 * c_txLogTopicGas.
    80  	CreateGas                uint64 = 32000 // Once per CREATE operation & contract-creation transaction.
    81  	Create2Gas               uint64 = 32000 // Once per CREATE2 operation
    82  	SelfdestructRefundGas    uint64 = 24000 // Refunded following a selfdestruct operation.
    83  	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.
    84  	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.
    85  	TxDataNonZeroGasEIP2028  uint64 = 16    // Per byte of non zero data attached to a transaction after EIP 2028 (part in Istanbul)
    86  
    87  	// These have been changed during the course of the chain
    88  	CallGasFrontier              uint64 = 40  // Once per CALL operation & message call transaction.
    89  	CallGasEIP150                uint64 = 700 // Static portion of gas for CALL-derivates after EIP 150 (Tangerine)
    90  	BalanceGasFrontier           uint64 = 20  // The cost of a BALANCE operation
    91  	BalanceGasEIP150             uint64 = 400 // The cost of a BALANCE operation after Tangerine
    92  	BalanceGasEIP1884            uint64 = 700 // The cost of a BALANCE operation after EIP 1884 (part of Istanbul)
    93  	ExtcodeSizeGasFrontier       uint64 = 20  // Cost of EXTCODESIZE before EIP 150 (Tangerine)
    94  	ExtcodeSizeGasEIP150         uint64 = 700 // Cost of EXTCODESIZE after EIP 150 (Tangerine)
    95  	SloadGasFrontier             uint64 = 50
    96  	SloadGasEIP150               uint64 = 200
    97  	SloadGasEIP1884              uint64 = 800  // Cost of SLOAD after EIP 1884 (part of Istanbul)
    98  	ExtcodeHashGasConstantinople uint64 = 400  // Cost of EXTCODEHASH (introduced in Constantinople)
    99  	ExtcodeHashGasEIP1884        uint64 = 700  // Cost of EXTCODEHASH after EIP 1884 (part in Istanbul)
   100  	SelfdestructGasEIP150        uint64 = 5000 // Cost of SELFDESTRUCT post EIP 150 (Tangerine)
   101  
   102  	// EXP has a dynamic portion depending on the size of the exponent
   103  	ExpByteFrontier uint64 = 10 // was set to 10 in Frontier
   104  	ExpByteEIP158   uint64 = 50 // was raised to 50 during Eip158 (Spurious Dragon)
   105  
   106  	// Extcodecopy has a dynamic AND a static cost. This represents only the
   107  	// static portion of the gas. It was changed during EIP 150 (Tangerine)
   108  	ExtcodeCopyBaseFrontier uint64 = 20
   109  	ExtcodeCopyBaseEIP150   uint64 = 700
   110  
   111  	// CreateBySelfdestructGas is used when the refunded account is one that does
   112  	// not exist. This logic is similar to call.
   113  	// Introduced in Tangerine Whistle (Eip 150)
   114  	CreateBySelfdestructGas uint64 = 25000
   115  
   116  	MaxCodeSize = 24576 // Maximum bytecode to permit for a contract
   117  
   118  	// Precompiled contract gas prices
   119  
   120  	EcrecoverGas        uint64 = 3000 // Elliptic curve sender recovery gas price
   121  	Sha256BaseGas       uint64 = 60   // Base price for a SHA256 operation
   122  	Sha256PerWordGas    uint64 = 12   // Per-word price for a SHA256 operation
   123  	Ripemd160BaseGas    uint64 = 600  // Base price for a RIPEMD160 operation
   124  	Ripemd160PerWordGas uint64 = 120  // Per-word price for a RIPEMD160 operation
   125  	IdentityBaseGas     uint64 = 15   // Base price for a data copy operation
   126  	IdentityPerWordGas  uint64 = 3    // Per-work price for a data copy operation
   127  	ModExpQuadCoeffDiv  uint64 = 20   // Divisor for the quadratic particle of the big int modular exponentiation
   128  
   129  	Bn256AddGasByzantium             uint64 = 500    // Byzantium gas needed for an elliptic curve addition
   130  	Bn256AddGasIstanbul              uint64 = 150    // Gas needed for an elliptic curve addition
   131  	Bn256ScalarMulGasByzantium       uint64 = 40000  // Byzantium gas needed for an elliptic curve scalar multiplication
   132  	Bn256ScalarMulGasIstanbul        uint64 = 6000   // Gas needed for an elliptic curve scalar multiplication
   133  	Bn256PairingBaseGasByzantium     uint64 = 100000 // Byzantium base price for an elliptic curve pairing check
   134  	Bn256PairingBaseGasIstanbul      uint64 = 45000  // Base price for an elliptic curve pairing check
   135  	Bn256PairingPerPointGasByzantium uint64 = 80000  // Byzantium per-point price for an elliptic curve pairing check
   136  	Bn256PairingPerPointGasIstanbul  uint64 = 34000  // Per-point price for an elliptic curve pairing check
   137  
   138  	QuorumMaximumExtraDataSize uint64 = 65 // Maximum size extra data may be after Genesis.
   139  	// Quorum - payload for a transaction, the size of the buffer to 128kb to match the maximum allowed in chain config
   140  	QuorumMaxPayloadBufferSize uint64 = 128
   141  )
   142  
   143  var (
   144  	DifficultyBoundDivisor = big.NewInt(2048)   // The bound divisor of the difficulty, used in the update calculations.
   145  	GenesisDifficulty      = big.NewInt(131072) // Difficulty of the Genesis block.
   146  	MinimumDifficulty      = big.NewInt(131072) // The minimum that the difficulty may ever be.
   147  	DurationLimit          = big.NewInt(13)     // The decision boundary on the blocktime duration used to determine whether difficulty should go up or not.
   148  )
   149  
   150  func GetMaximumExtraDataSize(isQuorum bool) uint64 {
   151  	if isQuorum {
   152  		return QuorumMaximumExtraDataSize
   153  	} else {
   154  		return MaximumExtraDataSize
   155  	}
   156  }