Contract
0x420000000000000000000000000000000000000f
2
My Name Tag:
Not Available, login to update
ContractCreator:
GENESIS at txn GENESIS_420000000000000000000000000000000000000F
[ Download CSV Export ]
Contract Name:
OVM_GasPriceOracle
Compiler Version
v0.8.9+commit.e5eed63a
Optimization Enabled:
Yes with 10000 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity)
/** *Submitted for verification at bobascan.com on 2022-12-08 */ // File: @openzeppelin/contracts/utils/Context.sol // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } // File: @openzeppelin/contracts/access/Ownable.sol // OpenZeppelin Contracts v4.4.1 (access/Ownable.sol) pragma solidity ^0.8.0; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } // File: CLient/boba/OVM_GasPriceOracle.sol pragma solidity ^0.8.9; /* External Imports */ /** * @title OVM_GasPriceOracle * @dev This contract exposes the current l2 gas price, a measure of how congested the network * currently is. This measure is used by the Sequencer to determine what fee to charge for * transactions. When the system is more congested, the l2 gas price will increase and fees * will also increase as a result. * * All public variables are set while generating the initial L2 state. The * constructor doesn't run in practice as the L2 state generation script uses * the deployed bytecode instead of running the initcode. */ contract OVM_GasPriceOracle is Ownable { /************* * Variables * *************/ // Current L2 gas price uint256 public gasPrice; // Current L1 base fee uint256 public l1BaseFee; // Amortized cost of batch submission per transaction uint256 public overhead; // Value to scale the fee up by uint256 public scalar; // Number of decimals of the scalar uint256 public decimals; /*************** * Constructor * ***************/ /** * @param _owner Address that will initially own this contract. */ constructor(address _owner) Ownable() { transferOwnership(_owner); } /********** * Events * **********/ event GasPriceUpdated(uint256); event L1BaseFeeUpdated(uint256); event OverheadUpdated(uint256); event ScalarUpdated(uint256); event DecimalsUpdated(uint256); /******************** * Public Functions * ********************/ /** * Allows the owner to modify the l2 gas price. * @param _gasPrice New l2 gas price. */ function setGasPrice(uint256 _gasPrice) public onlyOwner { gasPrice = _gasPrice; emit GasPriceUpdated(_gasPrice); } /** * Allows the owner to modify the l1 base fee. * @param _baseFee New l1 base fee */ function setL1BaseFee(uint256 _baseFee) public onlyOwner { l1BaseFee = _baseFee; emit L1BaseFeeUpdated(_baseFee); } /** * Allows the owner to modify the overhead. * @param _overhead New overhead */ function setOverhead(uint256 _overhead) public onlyOwner { overhead = _overhead; emit OverheadUpdated(_overhead); } /** * Allows the owner to modify the scalar. * @param _scalar New scalar */ function setScalar(uint256 _scalar) public onlyOwner { scalar = _scalar; emit ScalarUpdated(_scalar); } /** * Allows the owner to modify the decimals. * @param _decimals New decimals */ function setDecimals(uint256 _decimals) public onlyOwner { decimals = _decimals; emit DecimalsUpdated(_decimals); } /** * Computes the L1 portion of the fee * based on the size of the RLP encoded tx * and the current l1BaseFee * @param _data Unsigned RLP encoded tx, 6 elements * @return L1 fee that should be paid for the tx */ function getL1Fee(bytes memory _data) public view returns (uint256) { uint256 l1GasUsed = getL1GasUsed(_data); uint256 l1Fee = l1GasUsed * l1BaseFee; uint256 divisor = 10**decimals; uint256 unscaled = l1Fee * scalar; uint256 scaled = unscaled / divisor; return scaled; } /** * Computes the amount of L1 gas used for a transaction * The overhead represents the per batch gas overhead of * posting both transaction and state roots to L1 given larger * batch sizes. * 4 gas for 0 byte * https://github.com/ethereum/go-ethereum/blob/ * 9ada4a2e2c415e6b0b51c50e901336872e028872/params/protocol_params.go#L33 * 16 gas for non zero byte * https://github.com/ethereum/go-ethereum/blob/ * 9ada4a2e2c415e6b0b51c50e901336872e028872/params/protocol_params.go#L87 * This will need to be updated if calldata gas prices change * Account for the transaction being unsigned * Padding is added to account for lack of signature on transaction * 1 byte for RLP V prefix * 1 byte for V * 1 byte for RLP R prefix * 32 bytes for R * 1 byte for RLP S prefix * 32 bytes for S * Total: 68 bytes of padding * @param _data Unsigned RLP encoded tx, 6 elements * @return Amount of L1 gas used for a transaction */ function getL1GasUsed(bytes memory _data) public view returns (uint256) { uint256 total = 0; for (uint256 i = 0; i < _data.length; i++) { if (_data[i] == 0) { total += 4; } else { total += 16; } } uint256 unsigned = total + overhead; return unsigned + (68 * 16); } }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs": [{"internalType": "address","name": "_owner","type": "address"}],"stateMutability": "nonpayable","type": "constructor"},{"anonymous": false,"inputs": [{"indexed": false,"internalType": "uint256","name": "","type": "uint256"}],"name": "DecimalsUpdated","type": "event"},{"anonymous": false,"inputs": [{"indexed": false,"internalType": "uint256","name": "","type": "uint256"}],"name": "GasPriceUpdated","type": "event"},{"anonymous": false,"inputs": [{"indexed": false,"internalType": "uint256","name": "","type": "uint256"}],"name": "L1BaseFeeUpdated","type": "event"},{"anonymous": false,"inputs": [{"indexed": false,"internalType": "uint256","name": "","type": "uint256"}],"name": "OverheadUpdated","type": "event"},{"anonymous": false,"inputs": [{"indexed": true,"internalType": "address","name": "previousOwner","type": "address"},{"indexed": true,"internalType": "address","name": "newOwner","type": "address"}],"name": "OwnershipTransferred","type": "event"},{"anonymous": false,"inputs": [{"indexed": false,"internalType": "uint256","name": "","type": "uint256"}],"name": "ScalarUpdated","type": "event"},{"inputs": [],"name": "decimals","outputs": [{"internalType": "uint256","name": "","type": "uint256"}],"stateMutability": "view","type": "function"},{"inputs": [],"name": "gasPrice","outputs": [{"internalType": "uint256","name": "","type": "uint256"}],"stateMutability": "view","type": "function"},{"inputs": [{"internalType": "bytes","name": "_data","type": "bytes"}],"name": "getL1Fee","outputs": [{"internalType": "uint256","name": "","type": "uint256"}],"stateMutability": "view","type": "function"},{"inputs": [{"internalType": "bytes","name": "_data","type": "bytes"}],"name": "getL1GasUsed","outputs": [{"internalType": "uint256","name": "","type": "uint256"}],"stateMutability": "view","type": "function"},{"inputs": [],"name": "l1BaseFee","outputs": [{"internalType": "uint256","name": "","type": "uint256"}],"stateMutability": "view","type": "function"},{"inputs": [],"name": "overhead","outputs": [{"internalType": "uint256","name": "","type": "uint256"}],"stateMutability": "view","type": "function"},{"inputs": [],"name": "owner","outputs": [{"internalType": "address","name": "","type": "address"}],"stateMutability": "view","type": "function"},{"inputs": [],"name": "renounceOwnership","outputs": [],"stateMutability": "nonpayable","type": "function"},{"inputs": [],"name": "scalar","outputs": [{"internalType": "uint256","name": "","type": "uint256"}],"stateMutability": "view","type": "function"},{"inputs": [{"internalType": "uint256","name": "_decimals","type": "uint256"}],"name": "setDecimals","outputs": [],"stateMutability": "nonpayable","type": "function"},{"inputs": [{"internalType": "uint256","name": "_gasPrice","type": "uint256"}],"name": "setGasPrice","outputs": [],"stateMutability": "nonpayable","type": "function"},{"inputs": [{"internalType": "uint256","name": "_baseFee","type": "uint256"}],"name": "setL1BaseFee","outputs": [],"stateMutability": "nonpayable","type": "function"},{"inputs": [{"internalType": "uint256","name": "_overhead","type": "uint256"}],"name": "setOverhead","outputs": [],"stateMutability": "nonpayable","type": "function"},{"inputs": [{"internalType": "uint256","name": "_scalar","type": "uint256"}],"name": "setScalar","outputs": [],"stateMutability": "nonpayable","type": "function"},{"inputs": [{"internalType": "address","name": "newOwner","type": "address"}],"name": "transferOwnership","outputs": [],"stateMutability": "nonpayable","type": "function"}]
Contract Creation Code
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
Make sure to use the "Vote Down" button for any spammy posts, and the "Vote Up" for interesting conversations.