Transaction Hash:
Block:
22060376 at Mar-16-2025 03:35:23 PM +UTC
Transaction Fee:
0.00007961895267856 ETH
$0.20
Gas Used:
67,385 Gas / 1.181553056 Gwei
Emitted Events:
127 |
TransparentUpgradeableProxy.0xea3b023b4c8680d4b4824f0143132c95476359a2bb70a81d6c5a36f6918f6339( 0xea3b023b4c8680d4b4824f0143132c95476359a2bb70a81d6c5a36f6918f6339, 0x00000000000000000000000000000000000000000000000000000000000b39ed, 0xfa0096b4d977a14930f556d954b764ce4b083e45efec4ccd2c0b6aff12f13333, 0x277fe2ed0bdbd69fd59f0bb0021320d9fff133743f4cdba2c8201707a8d80d76 )
|
128 |
TransparentUpgradeableProxy.0xe856c2b8bd4eb0027ce32eeaf595c21b0b6b4644b326e5b7bd80a1cf8db72e6c( 0xe856c2b8bd4eb0027ce32eeaf595c21b0b6b4644b326e5b7bd80a1cf8db72e6c, 0x000000000000000000000000c47e1a7cebf9017afa8324d3046b1b87576175b6, 0x000000000000000000000000c47e1a7cebf9017afa8324d3046b1b87576175b6, 0x277fe2ed0bdbd69fd59f0bb0021320d9fff133743f4cdba2c8201707a8d80d76, 00000000000000000000000000000000000000000000000000000c4baa478540, 00000000000000000000000000000000000000000000000000003205af767000, 00000000000000000000000000000000000000000000000000000000000b39ed, 0000000000000000000000000000000000000000000000000000000000000080, 0000000000000000000000000000000000000000000000000000000000000000 )
|
Account State Difference:
Address | Before | After | State Difference | ||
---|---|---|---|---|---|
0x95222290...5CC4BAfe5
Miner
| (beaverbuild) | 18.02248855217908079 Eth | 18.02252224467908079 Eth | 0.0000336925 | |
0xC47E1a7C...7576175b6 |
0.00061851497490922 Eth
Nonce: 6
|
0.00047037690333626 Eth
Nonce: 7
| 0.00014813807157296 | ||
0xd19d4B5d...D11B0876F | (Linea: L1 Message Service) | 120,330.226029840963239661 Eth | 120,330.226098360082134061 Eth | 0.0000685191188944 |
Execution Trace
ETH 0.0000685191188944
TransparentUpgradeableProxy.9f3ce55a( )
- ETH 0.0000685191188944
LineaRollup.sendMessage( _to=0xC47E1a7CebF9017Afa8324D3046B1B87576175b6, _fee=13519118894400, _calldata=0x )
File 1 of 2: TransparentUpgradeableProxy
File 2 of 2: LineaRollup
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol) pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @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 Throws if called by any account other than the owner. */ modifier onlyOwner() { _checkOwner(); _; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if the sender is not the owner. */ function _checkOwner() internal view virtual { 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); } } // SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol) pragma solidity ^0.8.0; /** * @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified * proxy whose upgrades are fully controlled by the current implementation. */ interface IERC1822Proxiable { /** * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation * address. * * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this * function revert if invoked through a proxy. */ function proxiableUUID() external view returns (bytes32); } // SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.3) (interfaces/IERC1967.sol) pragma solidity ^0.8.0; /** * @dev ERC-1967: Proxy Storage Slots. This interface contains the events defined in the ERC. * * _Available since v4.9._ */ interface IERC1967 { /** * @dev Emitted when the implementation is upgraded. */ event Upgraded(address indexed implementation); /** * @dev Emitted when the admin account has changed. */ event AdminChanged(address previousAdmin, address newAdmin); /** * @dev Emitted when the beacon is changed. */ event BeaconUpgraded(address indexed beacon); } // SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (proxy/beacon/BeaconProxy.sol) pragma solidity ^0.8.0; import "./IBeacon.sol"; import "../Proxy.sol"; import "../ERC1967/ERC1967Upgrade.sol"; /** * @dev This contract implements a proxy that gets the implementation address for each call from an {UpgradeableBeacon}. * * The beacon address is stored in storage slot `uint256(keccak256('eip1967.proxy.beacon')) - 1`, so that it doesn't * conflict with the storage layout of the implementation behind the proxy. * * _Available since v3.4._ */ contract BeaconProxy is Proxy, ERC1967Upgrade { /** * @dev Initializes the proxy with `beacon`. * * If `data` is nonempty, it's used as data in a delegate call to the implementation returned by the beacon. This * will typically be an encoded function call, and allows initializing the storage of the proxy like a Solidity * constructor. * * Requirements: * * - `beacon` must be a contract with the interface {IBeacon}. */ constructor(address beacon, bytes memory data) payable { _upgradeBeaconToAndCall(beacon, data, false); } /** * @dev Returns the current beacon address. */ function _beacon() internal view virtual returns (address) { return _getBeacon(); } /** * @dev Returns the current implementation address of the associated beacon. */ function _implementation() internal view virtual override returns (address) { return IBeacon(_getBeacon()).implementation(); } /** * @dev Changes the proxy to use a new beacon. Deprecated: see {_upgradeBeaconToAndCall}. * * If `data` is nonempty, it's used as data in a delegate call to the implementation returned by the beacon. * * Requirements: * * - `beacon` must be a contract. * - The implementation returned by `beacon` must be a contract. */ function _setBeacon(address beacon, bytes memory data) internal virtual { _upgradeBeaconToAndCall(beacon, data, false); } } // SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol) pragma solidity ^0.8.0; /** * @dev This is the interface that {BeaconProxy} expects of its beacon. */ interface IBeacon { /** * @dev Must return an address that can be used as a delegate call target. * * {BeaconProxy} will check that this address is a contract. */ function implementation() external view returns (address); } // SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (proxy/beacon/UpgradeableBeacon.sol) pragma solidity ^0.8.0; import "./IBeacon.sol"; import "../../access/Ownable.sol"; import "../../utils/Address.sol"; /** * @dev This contract is used in conjunction with one or more instances of {BeaconProxy} to determine their * implementation contract, which is where they will delegate all function calls. * * An owner is able to change the implementation the beacon points to, thus upgrading the proxies that use this beacon. */ contract UpgradeableBeacon is IBeacon, Ownable { address private _implementation; /** * @dev Emitted when the implementation returned by the beacon is changed. */ event Upgraded(address indexed implementation); /** * @dev Sets the address of the initial implementation, and the deployer account as the owner who can upgrade the * beacon. */ constructor(address implementation_) { _setImplementation(implementation_); } /** * @dev Returns the current implementation address. */ function implementation() public view virtual override returns (address) { return _implementation; } /** * @dev Upgrades the beacon to a new implementation. * * Emits an {Upgraded} event. * * Requirements: * * - msg.sender must be the owner of the contract. * - `newImplementation` must be a contract. */ function upgradeTo(address newImplementation) public virtual onlyOwner { _setImplementation(newImplementation); emit Upgraded(newImplementation); } /** * @dev Sets the implementation contract address for this beacon * * Requirements: * * - `newImplementation` must be a contract. */ function _setImplementation(address newImplementation) private { require(Address.isContract(newImplementation), "UpgradeableBeacon: implementation is not a contract"); _implementation = newImplementation; } } // SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (proxy/ERC1967/ERC1967Proxy.sol) pragma solidity ^0.8.0; import "../Proxy.sol"; import "./ERC1967Upgrade.sol"; /** * @dev This contract implements an upgradeable proxy. It is upgradeable because calls are delegated to an * implementation address that can be changed. This address is stored in storage in the location specified by * https://eips.ethereum.org/EIPS/eip-1967[EIP1967], so that it doesn't conflict with the storage layout of the * implementation behind the proxy. */ contract ERC1967Proxy is Proxy, ERC1967Upgrade { /** * @dev Initializes the upgradeable proxy with an initial implementation specified by `_logic`. * * If `_data` is nonempty, it's used as data in a delegate call to `_logic`. This will typically be an encoded * function call, and allows initializing the storage of the proxy like a Solidity constructor. */ constructor(address _logic, bytes memory _data) payable { _upgradeToAndCall(_logic, _data, false); } /** * @dev Returns the current implementation address. */ function _implementation() internal view virtual override returns (address impl) { return ERC1967Upgrade._getImplementation(); } } // SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.3) (proxy/ERC1967/ERC1967Upgrade.sol) pragma solidity ^0.8.2; import "../beacon/IBeacon.sol"; import "../../interfaces/IERC1967.sol"; import "../../interfaces/draft-IERC1822.sol"; import "../../utils/Address.sol"; import "../../utils/StorageSlot.sol"; /** * @dev This abstract contract provides getters and event emitting update functions for * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots. * * _Available since v4.1._ * * @custom:oz-upgrades-unsafe-allow delegatecall */ abstract contract ERC1967Upgrade is IERC1967 { // This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1 bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143; /** * @dev Storage slot with the address of the current implementation. * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is * validated in the constructor. */ bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; /** * @dev Returns the current implementation address. */ function _getImplementation() internal view returns (address) { return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value; } /** * @dev Stores a new address in the EIP1967 implementation slot. */ function _setImplementation(address newImplementation) private { require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract"); StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation; } /** * @dev Perform implementation upgrade * * Emits an {Upgraded} event. */ function _upgradeTo(address newImplementation) internal { _setImplementation(newImplementation); emit Upgraded(newImplementation); } /** * @dev Perform implementation upgrade with additional setup call. * * Emits an {Upgraded} event. */ function _upgradeToAndCall( address newImplementation, bytes memory data, bool forceCall ) internal { _upgradeTo(newImplementation); if (data.length > 0 || forceCall) { Address.functionDelegateCall(newImplementation, data); } } /** * @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call. * * Emits an {Upgraded} event. */ function _upgradeToAndCallUUPS( address newImplementation, bytes memory data, bool forceCall ) internal { // Upgrades from old implementations will perform a rollback test. This test requires the new // implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing // this special case will break upgrade paths from old UUPS implementation to new ones. if (StorageSlot.getBooleanSlot(_ROLLBACK_SLOT).value) { _setImplementation(newImplementation); } else { try IERC1822Proxiable(newImplementation).proxiableUUID() returns (bytes32 slot) { require(slot == _IMPLEMENTATION_SLOT, "ERC1967Upgrade: unsupported proxiableUUID"); } catch { revert("ERC1967Upgrade: new implementation is not UUPS"); } _upgradeToAndCall(newImplementation, data, forceCall); } } /** * @dev Storage slot with the admin of the contract. * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is * validated in the constructor. */ bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103; /** * @dev Returns the current admin. */ function _getAdmin() internal view returns (address) { return StorageSlot.getAddressSlot(_ADMIN_SLOT).value; } /** * @dev Stores a new address in the EIP1967 admin slot. */ function _setAdmin(address newAdmin) private { require(newAdmin != address(0), "ERC1967: new admin is the zero address"); StorageSlot.getAddressSlot(_ADMIN_SLOT).value = newAdmin; } /** * @dev Changes the admin of the proxy. * * Emits an {AdminChanged} event. */ function _changeAdmin(address newAdmin) internal { emit AdminChanged(_getAdmin(), newAdmin); _setAdmin(newAdmin); } /** * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy. * This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor. */ bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50; /** * @dev Returns the current beacon. */ function _getBeacon() internal view returns (address) { return StorageSlot.getAddressSlot(_BEACON_SLOT).value; } /** * @dev Stores a new beacon in the EIP1967 beacon slot. */ function _setBeacon(address newBeacon) private { require(Address.isContract(newBeacon), "ERC1967: new beacon is not a contract"); require( Address.isContract(IBeacon(newBeacon).implementation()), "ERC1967: beacon implementation is not a contract" ); StorageSlot.getAddressSlot(_BEACON_SLOT).value = newBeacon; } /** * @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does * not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that). * * Emits a {BeaconUpgraded} event. */ function _upgradeBeaconToAndCall( address newBeacon, bytes memory data, bool forceCall ) internal { _setBeacon(newBeacon); emit BeaconUpgraded(newBeacon); if (data.length > 0 || forceCall) { Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data); } } } // SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (proxy/Proxy.sol) pragma solidity ^0.8.0; /** * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to * be specified by overriding the virtual {_implementation} function. * * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a * different contract through the {_delegate} function. * * The success and return data of the delegated call will be returned back to the caller of the proxy. */ abstract contract Proxy { /** * @dev Delegates the current call to `implementation`. * * This function does not return to its internal call site, it will return directly to the external caller. */ function _delegate(address implementation) internal virtual { assembly { // Copy msg.data. We take full control of memory in this inline assembly // block because it will not return to Solidity code. We overwrite the // Solidity scratch pad at memory position 0. calldatacopy(0, 0, calldatasize()) // Call the implementation. // out and outsize are 0 because we don't know the size yet. let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0) // Copy the returned data. returndatacopy(0, 0, returndatasize()) switch result // delegatecall returns 0 on error. case 0 { revert(0, returndatasize()) } default { return(0, returndatasize()) } } } /** * @dev This is a virtual function that should be overridden so it returns the address to which the fallback function * and {_fallback} should delegate. */ function _implementation() internal view virtual returns (address); /** * @dev Delegates the current call to the address returned by `_implementation()`. * * This function does not return to its internal call site, it will return directly to the external caller. */ function _fallback() internal virtual { _beforeFallback(); _delegate(_implementation()); } /** * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other * function in the contract matches the call data. */ fallback() external payable virtual { _fallback(); } /** * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data * is empty. */ receive() external payable virtual { _fallback(); } /** * @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback` * call, or as part of the Solidity `fallback` or `receive` functions. * * If overridden should call `super._beforeFallback()`. */ function _beforeFallback() internal virtual {} } // SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.3) (proxy/transparent/ProxyAdmin.sol) pragma solidity ^0.8.0; import "./TransparentUpgradeableProxy.sol"; import "../../access/Ownable.sol"; /** * @dev This is an auxiliary contract meant to be assigned as the admin of a {TransparentUpgradeableProxy}. For an * explanation of why you would want to use this see the documentation for {TransparentUpgradeableProxy}. */ contract ProxyAdmin is Ownable { /** * @dev Returns the current implementation of `proxy`. * * Requirements: * * - This contract must be the admin of `proxy`. */ function getProxyImplementation(ITransparentUpgradeableProxy proxy) public view virtual returns (address) { // We need to manually run the static call since the getter cannot be flagged as view // bytes4(keccak256("implementation()")) == 0x5c60da1b (bool success, bytes memory returndata) = address(proxy).staticcall(hex"5c60da1b"); require(success); return abi.decode(returndata, (address)); } /** * @dev Returns the current admin of `proxy`. * * Requirements: * * - This contract must be the admin of `proxy`. */ function getProxyAdmin(ITransparentUpgradeableProxy proxy) public view virtual returns (address) { // We need to manually run the static call since the getter cannot be flagged as view // bytes4(keccak256("admin()")) == 0xf851a440 (bool success, bytes memory returndata) = address(proxy).staticcall(hex"f851a440"); require(success); return abi.decode(returndata, (address)); } /** * @dev Changes the admin of `proxy` to `newAdmin`. * * Requirements: * * - This contract must be the current admin of `proxy`. */ function changeProxyAdmin(ITransparentUpgradeableProxy proxy, address newAdmin) public virtual onlyOwner { proxy.changeAdmin(newAdmin); } /** * @dev Upgrades `proxy` to `implementation`. See {TransparentUpgradeableProxy-upgradeTo}. * * Requirements: * * - This contract must be the admin of `proxy`. */ function upgrade(ITransparentUpgradeableProxy proxy, address implementation) public virtual onlyOwner { proxy.upgradeTo(implementation); } /** * @dev Upgrades `proxy` to `implementation` and calls a function on the new implementation. See * {TransparentUpgradeableProxy-upgradeToAndCall}. * * Requirements: * * - This contract must be the admin of `proxy`. */ function upgradeAndCall( ITransparentUpgradeableProxy proxy, address implementation, bytes memory data ) public payable virtual onlyOwner { proxy.upgradeToAndCall{value: msg.value}(implementation, data); } } // SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.3) (proxy/transparent/TransparentUpgradeableProxy.sol) pragma solidity ^0.8.0; import "../ERC1967/ERC1967Proxy.sol"; /** * @dev Interface for {TransparentUpgradeableProxy}. In order to implement transparency, {TransparentUpgradeableProxy} * does not implement this interface directly, and some of its functions are implemented by an internal dispatch * mechanism. The compiler is unaware that these functions are implemented by {TransparentUpgradeableProxy} and will not * include them in the ABI so this interface must be used to interact with it. */ interface ITransparentUpgradeableProxy is IERC1967 { function admin() external view returns (address); function implementation() external view returns (address); function changeAdmin(address) external; function upgradeTo(address) external; function upgradeToAndCall(address, bytes memory) external payable; } /** * @dev This contract implements a proxy that is upgradeable by an admin. * * To avoid https://medium.com/nomic-labs-blog/malicious-backdoors-in-ethereum-proxies-62629adf3357[proxy selector * clashing], which can potentially be used in an attack, this contract uses the * https://blog.openzeppelin.com/the-transparent-proxy-pattern/[transparent proxy pattern]. This pattern implies two * things that go hand in hand: * * 1. If any account other than the admin calls the proxy, the call will be forwarded to the implementation, even if * that call matches one of the admin functions exposed by the proxy itself. * 2. If the admin calls the proxy, it can access the admin functions, but its calls will never be forwarded to the * implementation. If the admin tries to call a function on the implementation it will fail with an error that says * "admin cannot fallback to proxy target". * * These properties mean that the admin account can only be used for admin actions like upgrading the proxy or changing * the admin, so it's best if it's a dedicated account that is not used for anything else. This will avoid headaches due * to sudden errors when trying to call a function from the proxy implementation. * * Our recommendation is for the dedicated account to be an instance of the {ProxyAdmin} contract. If set up this way, * you should think of the `ProxyAdmin` instance as the real administrative interface of your proxy. * * NOTE: The real interface of this proxy is that defined in `ITransparentUpgradeableProxy`. This contract does not * inherit from that interface, and instead the admin functions are implicitly implemented using a custom dispatch * mechanism in `_fallback`. Consequently, the compiler will not produce an ABI for this contract. This is necessary to * fully implement transparency without decoding reverts caused by selector clashes between the proxy and the * implementation. * * WARNING: It is not recommended to extend this contract to add additional external functions. If you do so, the compiler * will not check that there are no selector conflicts, due to the note above. A selector clash between any new function * and the functions declared in {ITransparentUpgradeableProxy} will be resolved in favor of the new one. This could * render the admin operations inaccessible, which could prevent upgradeability. Transparency may also be compromised. */ contract TransparentUpgradeableProxy is ERC1967Proxy { /** * @dev Initializes an upgradeable proxy managed by `_admin`, backed by the implementation at `_logic`, and * optionally initialized with `_data` as explained in {ERC1967Proxy-constructor}. */ constructor( address _logic, address admin_, bytes memory _data ) payable ERC1967Proxy(_logic, _data) { _changeAdmin(admin_); } /** * @dev Modifier used internally that will delegate the call to the implementation unless the sender is the admin. * * CAUTION: This modifier is deprecated, as it could cause issues if the modified function has arguments, and the * implementation provides a function with the same selector. */ modifier ifAdmin() { if (msg.sender == _getAdmin()) { _; } else { _fallback(); } } /** * @dev If caller is the admin process the call internally, otherwise transparently fallback to the proxy behavior */ function _fallback() internal virtual override { if (msg.sender == _getAdmin()) { bytes memory ret; bytes4 selector = msg.sig; if (selector == ITransparentUpgradeableProxy.upgradeTo.selector) { ret = _dispatchUpgradeTo(); } else if (selector == ITransparentUpgradeableProxy.upgradeToAndCall.selector) { ret = _dispatchUpgradeToAndCall(); } else if (selector == ITransparentUpgradeableProxy.changeAdmin.selector) { ret = _dispatchChangeAdmin(); } else if (selector == ITransparentUpgradeableProxy.admin.selector) { ret = _dispatchAdmin(); } else if (selector == ITransparentUpgradeableProxy.implementation.selector) { ret = _dispatchImplementation(); } else { revert("TransparentUpgradeableProxy: admin cannot fallback to proxy target"); } assembly { return(add(ret, 0x20), mload(ret)) } } else { super._fallback(); } } /** * @dev Returns the current admin. * * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the * https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call. * `0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103` */ function _dispatchAdmin() private returns (bytes memory) { _requireZeroValue(); address admin = _getAdmin(); return abi.encode(admin); } /** * @dev Returns the current implementation. * * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the * https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call. * `0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc` */ function _dispatchImplementation() private returns (bytes memory) { _requireZeroValue(); address implementation = _implementation(); return abi.encode(implementation); } /** * @dev Changes the admin of the proxy. * * Emits an {AdminChanged} event. */ function _dispatchChangeAdmin() private returns (bytes memory) { _requireZeroValue(); address newAdmin = abi.decode(msg.data[4:], (address)); _changeAdmin(newAdmin); return ""; } /** * @dev Upgrade the implementation of the proxy. */ function _dispatchUpgradeTo() private returns (bytes memory) { _requireZeroValue(); address newImplementation = abi.decode(msg.data[4:], (address)); _upgradeToAndCall(newImplementation, bytes(""), false); return ""; } /** * @dev Upgrade the implementation of the proxy, and then call a function from the new implementation as specified * by `data`, which should be an encoded function call. This is useful to initialize new storage variables in the * proxied contract. */ function _dispatchUpgradeToAndCall() private returns (bytes memory) { (address newImplementation, bytes memory data) = abi.decode(msg.data[4:], (address, bytes)); _upgradeToAndCall(newImplementation, data, true); return ""; } /** * @dev Returns the current admin. */ function _admin() internal view virtual returns (address) { return _getAdmin(); } /** * @dev To keep this contract fully transparent, all `ifAdmin` functions must be payable. This helper is here to * emulate some proxy functions being non-payable while still allowing value to pass through. */ function _requireZeroValue() private { require(msg.value == 0); } } // SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. * * _Available since v4.8._ */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata, string memory errorMessage ) internal view returns (bytes memory) { if (success) { if (returndata.length == 0) { // only check isContract if the call was successful and the return data is empty // otherwise we already know that it was a contract require(isContract(target), "Address: call to non-contract"); } return returndata; } else { _revert(returndata, errorMessage); } } /** * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason or using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { _revert(returndata, errorMessage); } } function _revert(bytes memory returndata, string memory errorMessage) private pure { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } // SPDX-License-Identifier: MIT // 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; } } // SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/StorageSlot.sol) pragma solidity ^0.8.0; /** * @dev Library for reading and writing primitive types to specific storage slots. * * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts. * This library helps with reading and writing to such slots without the need for inline assembly. * * The functions in this library return Slot structs that contain a `value` member that can be used to read or write. * * Example usage to set ERC1967 implementation slot: * ``` * contract ERC1967 { * bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; * * function _getImplementation() internal view returns (address) { * return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value; * } * * function _setImplementation(address newImplementation) internal { * require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract"); * StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation; * } * } * ``` * * _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._ */ library StorageSlot { struct AddressSlot { address value; } struct BooleanSlot { bool value; } struct Bytes32Slot { bytes32 value; } struct Uint256Slot { uint256 value; } /** * @dev Returns an `AddressSlot` with member `value` located at `slot`. */ function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `BooleanSlot` with member `value` located at `slot`. */ function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `Bytes32Slot` with member `value` located at `slot`. */ function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `Uint256Slot` with member `value` located at `slot`. */ function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } }
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// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (access/AccessControl.sol) pragma solidity ^0.8.0; import "./IAccessControlUpgradeable.sol"; import "../utils/ContextUpgradeable.sol"; import "../utils/StringsUpgradeable.sol"; import "../utils/introspection/ERC165Upgradeable.sol"; import {Initializable} from "../proxy/utils/Initializable.sol"; /** * @dev Contract module that allows children to implement role-based access * control mechanisms. This is a lightweight version that doesn't allow enumerating role * members except through off-chain means by accessing the contract event logs. Some * applications may benefit from on-chain enumerability, for those cases see * {AccessControlEnumerable}. * * Roles are referred to by their `bytes32` identifier. These should be exposed * in the external API and be unique. The best way to achieve this is by * using `public constant` hash digests: * * ```solidity * bytes32 public constant MY_ROLE = keccak256("MY_ROLE"); * ``` * * Roles can be used to represent a set of permissions. To restrict access to a * function call, use {hasRole}: * * ```solidity * function foo() public { * require(hasRole(MY_ROLE, msg.sender)); * ... * } * ``` * * Roles can be granted and revoked dynamically via the {grantRole} and * {revokeRole} functions. Each role has an associated admin role, and only * accounts that have a role's admin role can call {grantRole} and {revokeRole}. * * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means * that only accounts with this role will be able to grant or revoke other * roles. More complex role relationships can be created by using * {_setRoleAdmin}. * * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to * grant and revoke this role. Extra precautions should be taken to secure * accounts that have been granted it. We recommend using {AccessControlDefaultAdminRules} * to enforce additional security measures for this role. */ abstract contract AccessControlUpgradeable is Initializable, ContextUpgradeable, IAccessControlUpgradeable, ERC165Upgradeable { struct RoleData { mapping(address => bool) members; bytes32 adminRole; } mapping(bytes32 => RoleData) private _roles; bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00; /** * @dev Modifier that checks that an account has a specific role. Reverts * with a standardized message including the required role. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ * * _Available since v4.1._ */ modifier onlyRole(bytes32 role) { _checkRole(role); _; } function __AccessControl_init() internal onlyInitializing { } function __AccessControl_init_unchained() internal onlyInitializing { } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControlUpgradeable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) public view virtual override returns (bool) { return _roles[role].members[account]; } /** * @dev Revert with a standard message if `_msgSender()` is missing `role`. * Overriding this function changes the behavior of the {onlyRole} modifier. * * Format of the revert message is described in {_checkRole}. * * _Available since v4.6._ */ function _checkRole(bytes32 role) internal view virtual { _checkRole(role, _msgSender()); } /** * @dev Revert with a standard message if `account` is missing `role`. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ */ function _checkRole(bytes32 role, address account) internal view virtual { if (!hasRole(role, account)) { revert( string( abi.encodePacked( "AccessControl: account ", StringsUpgradeable.toHexString(account), " is missing role ", StringsUpgradeable.toHexString(uint256(role), 32) ) ) ); } } /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) { return _roles[role].adminRole; } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. * * May emit a {RoleGranted} event. */ function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _grantRole(role, account); } /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. * * May emit a {RoleRevoked} event. */ function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _revokeRole(role, account); } /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been revoked `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. * * May emit a {RoleRevoked} event. */ function renounceRole(bytes32 role, address account) public virtual override { require(account == _msgSender(), "AccessControl: can only renounce roles for self"); _revokeRole(role, account); } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. Note that unlike {grantRole}, this function doesn't perform any * checks on the calling account. * * May emit a {RoleGranted} event. * * [WARNING] * ==== * This function should only be called from the constructor when setting * up the initial roles for the system. * * Using this function in any other way is effectively circumventing the admin * system imposed by {AccessControl}. * ==== * * NOTE: This function is deprecated in favor of {_grantRole}. */ function _setupRole(bytes32 role, address account) internal virtual { _grantRole(role, account); } /** * @dev Sets `adminRole` as ``role``'s admin role. * * Emits a {RoleAdminChanged} event. */ function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual { bytes32 previousAdminRole = getRoleAdmin(role); _roles[role].adminRole = adminRole; emit RoleAdminChanged(role, previousAdminRole, adminRole); } /** * @dev Grants `role` to `account`. * * Internal function without access restriction. * * May emit a {RoleGranted} event. */ function _grantRole(bytes32 role, address account) internal virtual { if (!hasRole(role, account)) { _roles[role].members[account] = true; emit RoleGranted(role, account, _msgSender()); } } /** * @dev Revokes `role` from `account`. * * Internal function without access restriction. * * May emit a {RoleRevoked} event. */ function _revokeRole(bytes32 role, address account) internal virtual { if (hasRole(role, account)) { _roles[role].members[account] = false; emit RoleRevoked(role, account, _msgSender()); } } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[49] private __gap; } // SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol) pragma solidity ^0.8.0; /** * @dev External interface of AccessControl declared to support ERC165 detection. */ interface IAccessControlUpgradeable { /** * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole` * * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite * {RoleAdminChanged} not being emitted signaling this. * * _Available since v3.1._ */ event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole); /** * @dev Emitted when `account` is granted `role`. * * `sender` is the account that originated the contract call, an admin role * bearer except when using {AccessControl-_setupRole}. */ event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Emitted when `account` is revoked `role`. * * `sender` is the account that originated the contract call: * - if using `revokeRole`, it is the admin role bearer * - if using `renounceRole`, it is the role bearer (i.e. `account`) */ event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) external view returns (bool); /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {AccessControl-_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) external view returns (bytes32); /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function grantRole(bytes32 role, address account) external; /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function revokeRole(bytes32 role, address account) external; /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been granted `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. */ function renounceRole(bytes32 role, address account) external; } // SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol) pragma solidity ^0.8.2; import "../../utils/AddressUpgradeable.sol"; /** * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect. * * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in * case an upgrade adds a module that needs to be initialized. * * For example: * * [.hljs-theme-light.nopadding] * ```solidity * contract MyToken is ERC20Upgradeable { * function initialize() initializer public { * __ERC20_init("MyToken", "MTK"); * } * } * * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable { * function initializeV2() reinitializer(2) public { * __ERC20Permit_init("MyToken"); * } * } * ``` * * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}. * * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity. * * [CAUTION] * ==== * Avoid leaving a contract uninitialized. * * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed: * * [.hljs-theme-light.nopadding] * ``` * /// @custom:oz-upgrades-unsafe-allow constructor * constructor() { * _disableInitializers(); * } * ``` * ==== */ abstract contract Initializable { /** * @dev Indicates that the contract has been initialized. * @custom:oz-retyped-from bool */ uint8 private _initialized; /** * @dev Indicates that the contract is in the process of being initialized. */ bool private _initializing; /** * @dev Triggered when the contract has been initialized or reinitialized. */ event Initialized(uint8 version); /** * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope, * `onlyInitializing` functions can be used to initialize parent contracts. * * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a * constructor. * * Emits an {Initialized} event. */ modifier initializer() { bool isTopLevelCall = !_initializing; require( (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1), "Initializable: contract is already initialized" ); _initialized = 1; if (isTopLevelCall) { _initializing = true; } _; if (isTopLevelCall) { _initializing = false; emit Initialized(1); } } /** * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be * used to initialize parent contracts. * * A reinitializer may be used after the original initialization step. This is essential to configure modules that * are added through upgrades and that require initialization. * * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer` * cannot be nested. If one is invoked in the context of another, execution will revert. * * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in * a contract, executing them in the right order is up to the developer or operator. * * WARNING: setting the version to 255 will prevent any future reinitialization. * * Emits an {Initialized} event. */ modifier reinitializer(uint8 version) { require(!_initializing && _initialized < version, "Initializable: contract is already initialized"); _initialized = version; _initializing = true; _; _initializing = false; emit Initialized(version); } /** * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the * {initializer} and {reinitializer} modifiers, directly or indirectly. */ modifier onlyInitializing() { require(_initializing, "Initializable: contract is not initializing"); _; } /** * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call. * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized * to any version. It is recommended to use this to lock implementation contracts that are designed to be called * through proxies. * * Emits an {Initialized} event the first time it is successfully executed. */ function _disableInitializers() internal virtual { require(!_initializing, "Initializable: contract is initializing"); if (_initialized != type(uint8).max) { _initialized = type(uint8).max; emit Initialized(type(uint8).max); } } /** * @dev Returns the highest version that has been initialized. See {reinitializer}. */ function _getInitializedVersion() internal view returns (uint8) { return _initialized; } /** * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}. */ function _isInitializing() internal view returns (bool) { return _initializing; } } // SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library AddressUpgradeable { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * * Furthermore, `isContract` will also return true if the target contract within * the same transaction is already scheduled for destruction by `SELFDESTRUCT`, * which only has an effect at the end of a transaction. * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. * * _Available since v4.8._ */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata, string memory errorMessage ) internal view returns (bytes memory) { if (success) { if (returndata.length == 0) { // only check isContract if the call was successful and the return data is empty // otherwise we already know that it was a contract require(isContract(target), "Address: call to non-contract"); } return returndata; } else { _revert(returndata, errorMessage); } } /** * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason or using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { _revert(returndata, errorMessage); } } function _revert(bytes memory returndata, string memory errorMessage) private pure { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } // SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol) pragma solidity ^0.8.0; import {Initializable} from "../proxy/utils/Initializable.sol"; /** * @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 ContextUpgradeable is Initializable { function __Context_init() internal onlyInitializing { } function __Context_init_unchained() internal onlyInitializing { } function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } function _contextSuffixLength() internal view virtual returns (uint256) { return 0; } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[50] private __gap; } // SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; import "./IERC165Upgradeable.sol"; import {Initializable} from "../../proxy/utils/Initializable.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable { function __ERC165_init() internal onlyInitializing { } function __ERC165_init_unchained() internal onlyInitializing { } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165Upgradeable).interfaceId; } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[50] private __gap; } // SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165Upgradeable { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); } // SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol) pragma solidity ^0.8.0; /** * @dev Standard math utilities missing in the Solidity language. */ library MathUpgradeable { enum Rounding { Down, // Toward negative infinity Up, // Toward infinity Zero // Toward zero } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a > b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds up instead * of rounding down. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0 * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) * with further edits by Uniswap Labs also under MIT license. */ function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2^256 + prod0. uint256 prod0; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod0 := mul(x, y) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { // Solidity will revert if denominator == 0, unlike the div opcode on its own. // The surrounding unchecked block does not change this fact. // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic. return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. require(denominator > prod1, "Math: mulDiv overflow"); /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [prod1 prod0]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1. // See https://cs.stackexchange.com/q/138556/92363. // Does not overflow because the denominator cannot be zero at this stage in the function. uint256 twos = denominator & (~denominator + 1); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv = 1 mod 2^4. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works // in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // inverse mod 2^256 // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) { uint256 result = mulDiv(x, y, denominator); if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) { result += 1; } return result; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`. // // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)` // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))` // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)` // // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1 << (log2(a) >> 1); // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. unchecked { result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; return min(result, a / result); } } /** * @notice Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = sqrt(a); return result + (rounding == Rounding.Up && result * result < a ? 1 : 0); } } /** * @dev Return the log in base 2, rounded down, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 128; } if (value >> 64 > 0) { value >>= 64; result += 64; } if (value >> 32 > 0) { value >>= 32; result += 32; } if (value >> 16 > 0) { value >>= 16; result += 16; } if (value >> 8 > 0) { value >>= 8; result += 8; } if (value >> 4 > 0) { value >>= 4; result += 4; } if (value >> 2 > 0) { value >>= 2; result += 2; } if (value >> 1 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0); } } /** * @dev Return the log in base 10, rounded down, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >= 10 ** 64) { value /= 10 ** 64; result += 64; } if (value >= 10 ** 32) { value /= 10 ** 32; result += 32; } if (value >= 10 ** 16) { value /= 10 ** 16; result += 16; } if (value >= 10 ** 8) { value /= 10 ** 8; result += 8; } if (value >= 10 ** 4) { value /= 10 ** 4; result += 4; } if (value >= 10 ** 2) { value /= 10 ** 2; result += 2; } if (value >= 10 ** 1) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log10(value); return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0); } } /** * @dev Return the log in base 256, rounded down, of a positive value. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ function log256(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 16; } if (value >> 64 > 0) { value >>= 64; result += 8; } if (value >> 32 > 0) { value >>= 32; result += 4; } if (value >> 16 > 0) { value >>= 16; result += 2; } if (value >> 8 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 256, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0); } } } // SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol) pragma solidity ^0.8.0; /** * @dev Standard signed math utilities missing in the Solidity language. */ library SignedMathUpgradeable { /** * @dev Returns the largest of two signed numbers. */ function max(int256 a, int256 b) internal pure returns (int256) { return a > b ? a : b; } /** * @dev Returns the smallest of two signed numbers. */ function min(int256 a, int256 b) internal pure returns (int256) { return a < b ? a : b; } /** * @dev Returns the average of two signed numbers without overflow. * The result is rounded towards zero. */ function average(int256 a, int256 b) internal pure returns (int256) { // Formula from the book "Hacker's Delight" int256 x = (a & b) + ((a ^ b) >> 1); return x + (int256(uint256(x) >> 255) & (a ^ b)); } /** * @dev Returns the absolute unsigned value of a signed value. */ function abs(int256 n) internal pure returns (uint256) { unchecked { // must be unchecked in order to support `n = type(int256).min` return uint256(n >= 0 ? n : -n); } } } // SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol) pragma solidity ^0.8.0; import "./math/MathUpgradeable.sol"; import "./math/SignedMathUpgradeable.sol"; /** * @dev String operations. */ library StringsUpgradeable { bytes16 private constant _SYMBOLS = "0123456789abcdef"; uint8 private constant _ADDRESS_LENGTH = 20; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { unchecked { uint256 length = MathUpgradeable.log10(value) + 1; string memory buffer = new string(length); uint256 ptr; /// @solidity memory-safe-assembly assembly { ptr := add(buffer, add(32, length)) } while (true) { ptr--; /// @solidity memory-safe-assembly assembly { mstore8(ptr, byte(mod(value, 10), _SYMBOLS)) } value /= 10; if (value == 0) break; } return buffer; } } /** * @dev Converts a `int256` to its ASCII `string` decimal representation. */ function toString(int256 value) internal pure returns (string memory) { return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMathUpgradeable.abs(value)))); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { unchecked { return toHexString(value, MathUpgradeable.log256(value) + 1); } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH); } /** * @dev Returns true if the two strings are equal. */ function equal(string memory a, string memory b) internal pure returns (bool) { return keccak256(bytes(a)) == keccak256(bytes(b)); } } // SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/structs/BitMaps.sol) pragma solidity ^0.8.0; /** * @dev Library for managing uint256 to bool mapping in a compact and efficient way, providing the keys are sequential. * Largely inspired by Uniswap's https://github.com/Uniswap/merkle-distributor/blob/master/contracts/MerkleDistributor.sol[merkle-distributor]. */ library BitMaps { struct BitMap { mapping(uint256 => uint256) _data; } /** * @dev Returns whether the bit at `index` is set. */ function get(BitMap storage bitmap, uint256 index) internal view returns (bool) { uint256 bucket = index >> 8; uint256 mask = 1 << (index & 0xff); return bitmap._data[bucket] & mask != 0; } /** * @dev Sets the bit at `index` to the boolean `value`. */ function setTo(BitMap storage bitmap, uint256 index, bool value) internal { if (value) { set(bitmap, index); } else { unset(bitmap, index); } } /** * @dev Sets the bit at `index`. */ function set(BitMap storage bitmap, uint256 index) internal { uint256 bucket = index >> 8; uint256 mask = 1 << (index & 0xff); bitmap._data[bucket] |= mask; } /** * @dev Unsets the bit at `index`. */ function unset(BitMap storage bitmap, uint256 index) internal { uint256 bucket = index >> 8; uint256 mask = 1 << (index & 0xff); bitmap._data[bucket] &= ~mask; } } // SPDX-License-Identifier: Apache-2.0 pragma solidity >=0.8.19 <=0.8.26; /** * @title Interface declaring generic errors. * @author ConsenSys Software Inc. * @custom:security-contact [email protected] */ interface IGenericErrors { /** * @dev Thrown when a parameter is the zero address. */ error ZeroAddressNotAllowed(); /** * @dev Thrown when a parameter is the zero hash. */ error ZeroHashNotAllowed(); /** * @dev Thrown when array lengths are mismatched. */ error ArrayLengthsDoNotMatch(); } // SPDX-License-Identifier: Apache-2.0 pragma solidity >=0.8.19 <=0.8.26; /** * @title Interface declaring pre-existing cross-chain messaging functions, events and errors. * @author ConsenSys Software Inc. * @custom:security-contact [email protected] */ interface IMessageService { /** * @notice Emitted when a message is sent. * @param _from The indexed sender address of the message (msg.sender). * @param _to The indexed intended recipient address of the message on the other layer. * @param _fee The fee being being paid to deliver the message to the recipient in Wei. * @param _value The value being sent to the recipient in Wei. * @param _nonce The unique message number. * @param _calldata The calldata being passed to the intended recipient when being called on claiming. * @param _messageHash The indexed hash of the message parameters. * @dev _calldata has the _ because calldata is a reserved word. * @dev We include the message hash to save hashing costs on the rollup. * @dev This event is used on both L1 and L2. */ event MessageSent( address indexed _from, address indexed _to, uint256 _fee, uint256 _value, uint256 _nonce, bytes _calldata, bytes32 indexed _messageHash ); /** * @notice Emitted when a message is claimed. * @param _messageHash The indexed hash of the message that was claimed. */ event MessageClaimed(bytes32 indexed _messageHash); /** * @dev Thrown when fees are lower than the minimum fee. */ error FeeTooLow(); /** * @dev Thrown when the value sent is less than the fee. * @dev Value to forward on is msg.value - _fee. */ error ValueSentTooLow(); /** * @dev Thrown when the destination address reverts. */ error MessageSendingFailed(address destination); /** * @dev Thrown when the recipient address reverts. */ error FeePaymentFailed(address recipient); /** * @notice Sends a message for transporting from the given chain. * @dev This function should be called with a msg.value = _value + _fee. The fee will be paid on the destination chain. * @param _to The destination address on the destination chain. * @param _fee The message service fee on the origin chain. * @param _calldata The calldata used by the destination message service to call the destination contract. */ function sendMessage(address _to, uint256 _fee, bytes calldata _calldata) external payable; /** * @notice Deliver a message to the destination chain. * @notice Is called by the Postman, dApp or end user. * @param _from The msg.sender calling the origin message service. * @param _to The destination address on the destination chain. * @param _value The value to be transferred to the destination address. * @param _fee The message service fee on the origin chain. * @param _feeRecipient Address that will receive the fees. * @param _calldata The calldata used by the destination message service to call/forward to the destination contract. * @param _nonce Unique message number. */ function claimMessage( address _from, address _to, uint256 _fee, uint256 _value, address payable _feeRecipient, bytes calldata _calldata, uint256 _nonce ) external; /** * @notice Returns the original sender of the message on the origin layer. * @return originalSender The original sender of the message on the origin layer. */ function sender() external view returns (address originalSender); } // SPDX-License-Identifier: Apache-2.0 pragma solidity >=0.8.19 <=0.8.26; /** * @title Interface declaring pre-existing pausing functions, events and errors. * @author ConsenSys Software Inc. * @custom:security-contact [email protected] */ interface IPauseManager { /** * @notice Structure defining a pause type and its associated role. * @dev This struct is used for both the `_pauseTypeRoles` and `_unPauseTypeRoles` mappings. * @param pauseType The type of pause. * @param role The role associated with the pause type. */ struct PauseTypeRole { PauseType pauseType; bytes32 role; } /** * @notice Enum defining the different types of pausing. * @dev The pause types are used to pause and unpause specific functionality. * @dev The UNUSED pause type is used as a default value to avoid accidental general pausing. * @dev Enums are uint8 by default. */ enum PauseType { UNUSED, GENERAL, L1_L2, L2_L1, BLOB_SUBMISSION, CALLDATA_SUBMISSION, FINALIZATION, INITIATE_TOKEN_BRIDGING, COMPLETE_TOKEN_BRIDGING } /** * @notice Emitted when a pause type is paused. * @param messageSender The address performing the pause. * @param pauseType The indexed pause type that was paused. */ event Paused(address messageSender, PauseType indexed pauseType); /** * @notice Emitted when a pause type is unpaused. * @param messageSender The address performing the unpause. * @param pauseType The indexed pause type that was unpaused. */ event UnPaused(address messageSender, PauseType indexed pauseType); /** * @notice Emitted when a pause type and its associated role are set in the `_pauseTypeRoles` mapping. * @param pauseType The indexed type of pause. * @param role The indexed role associated with the pause type. */ event PauseTypeRoleSet(PauseType indexed pauseType, bytes32 indexed role); /** * @notice Emitted when an unpause type and its associated role are set in the `_unPauseTypeRoles` mapping. * @param unPauseType The indexed type of unpause. * @param role The indexed role associated with the unpause type. */ event UnPauseTypeRoleSet(PauseType indexed unPauseType, bytes32 indexed role); /** * @dev Thrown when a specific pause type is paused. */ error IsPaused(PauseType pauseType); /** * @dev Thrown when a specific pause type is not paused and expected to be. */ error IsNotPaused(PauseType pauseType); /** * @notice Pauses functionality by specific type. * @dev Requires the role mapped in pauseTypeRoles for the pauseType. * @param _pauseType The pause type value. */ function pauseByType(PauseType _pauseType) external; /** * @notice Unpauses functionality by specific type. * @dev Requires the role mapped in unPauseTypeRoles for the pauseType. * @param _pauseType The pause type value. */ function unPauseByType(PauseType _pauseType) external; /** * @notice Check if a pause type is enabled. * @param _pauseType The pause type value. * @return pauseTypeIsPaused Returns true if the pause type if paused, false otherwise. */ function isPaused(PauseType _pauseType) external view returns (bool pauseTypeIsPaused); } // SPDX-License-Identifier: Apache-2.0 pragma solidity >=0.8.19 <=0.8.26; /** * @title Interface declaring permissions manager related data types. * @author ConsenSys Software Inc. * @custom:security-contact [email protected] */ interface IPermissionsManager { /** * @notice Structure defining a role and its associated address. * @param addressWithRole The address with the role. * @param role The role associated with the address. */ struct RoleAddress { address addressWithRole; bytes32 role; } } // SPDX-License-Identifier: Apache-2.0 pragma solidity >=0.8.19 <=0.8.26; /** * @title Interface declaring rate limiting messaging functions, events and errors. * @author ConsenSys Software Inc. * @custom:security-contact [email protected] */ interface IRateLimiter { /** * @notice Emitted when the Rate Limit is initialized. * @param periodInSeconds The time period in seconds the rate limiter has been initialized to. * @param limitInWei The limit in Wei the rate limiter has been initialized to. * @param currentPeriodEnd The time the current rate limit period will end. */ event RateLimitInitialized(uint256 periodInSeconds, uint256 limitInWei, uint256 currentPeriodEnd); /** * @notice Emitted when the amount in the period is reset to zero. * @param resettingAddress The indexed address of who reset the used amount back to zero. */ event AmountUsedInPeriodReset(address indexed resettingAddress); /** * @notice Emitted when the limit is changed. * @param amountChangeBy The indexed address of who changed the rate limit. * @param amount The rate limited amount in Wei that was set. * @param amountUsedLoweredToLimit Indicates if the amount used was lowered to the limit to avoid confusion. * @param usedAmountResetToZero Indicates if the amount used was set to zero because of the current period expiring. * @dev If the current used amount is higher than the new limit, the used amount is lowered to the limit. * @dev amountUsedLoweredToLimit and usedAmountResetToZero cannot be true at the same time. */ event LimitAmountChanged( address indexed amountChangeBy, uint256 amount, bool amountUsedLoweredToLimit, bool usedAmountResetToZero ); /** * @dev Thrown when an amount breaches the limit in the period. */ error RateLimitExceeded(); /** * @dev Thrown when the period is initialised to zero. */ error PeriodIsZero(); /** * @dev Thrown when the limit is initialised to zero. */ error LimitIsZero(); /** * @notice Resets the rate limit amount. * @dev If the used amount is higher, it is set to the limit to avoid confusion/issues. * @dev Only the RATE_LIMIT_SETTER_ROLE is allowed to execute this function. * @dev Emits the LimitAmountChanged event. * @dev usedLimitAmountToSet will use the default value of zero if period has expired. * @param _amount The amount to reset the limit to. */ function resetRateLimitAmount(uint256 _amount) external; /** * @notice Resets the amount used to zero. * @dev Only the USED_RATE_LIMIT_RESETTER_ROLE is allowed to execute this function. * @dev Emits the AmountUsedInPeriodReset event. */ function resetAmountUsedInPeriod() external; } // SPDX-License-Identifier: AGPL-3.0 pragma solidity 0.8.26; /** * @title L1 Message manager interface for current functions, events and errors. * @author ConsenSys Software Inc. * @custom:security-contact [email protected] */ interface IL1MessageManager { /** * @notice Emitted when a new message is sent and the rolling hash updated. * @param messageNumber The unique indexed message number for the message. * @param rollingHash The indexed rolling hash computed for the current message number. * @param messageHash The indexed hash of the message parameters. */ event RollingHashUpdated(uint256 indexed messageNumber, bytes32 indexed rollingHash, bytes32 indexed messageHash); /** * @notice Emitted when the L2 Merkle root has been anchored on L1. * @param l2MerkleRoot The indexed L2 Merkle root that has been anchored on L1 Ethereum. * @param treeDepth The indexed tree depth of the Merkle root. * @dev There may be more than one of these in a finalization depending on the amount of L2->L1 messages in the finalization. */ event L2MerkleRootAdded(bytes32 indexed l2MerkleRoot, uint256 indexed treeDepth); /** * @notice Emitted when the L2 block contains L2 messages during finalization. * @param l2Block The indexed L2 block containing L2 to L1 messages. * @dev This is used externally in the logic for determining which messages belong to which Merkle root when claiming. */ event L2MessagingBlockAnchored(uint256 indexed l2Block); /** * @dev Thrown when the message has already been claimed. */ error MessageAlreadyClaimed(uint256 messageIndex); /** * @dev Thrown when the L2 Merkle root has already been anchored on L1. */ error L2MerkleRootAlreadyAnchored(bytes32 merkleRoot); /** * @dev Thrown when the L2 messaging blocks offsets bytes length is not a multiple of 2. */ error BytesLengthNotMultipleOfTwo(uint256 bytesLength); /** * @notice Checks if the L2->L1 message is claimed or not. * @param _messageNumber The message number on L2. * @return isClaimed Returns whether or not the message with _messageNumber has been claimed. */ function isMessageClaimed(uint256 _messageNumber) external view returns (bool isClaimed); } // SPDX-License-Identifier: Apache-2.0 pragma solidity 0.8.26; /** * @title L1 Message manager V1 interface for pre-existing errors. * @author ConsenSys Software Inc. * @custom:security-contact [email protected] */ interface IL1MessageManagerV1 { /** * @dev Thrown when the message has already been claimed. */ error MessageDoesNotExistOrHasAlreadyBeenClaimed(bytes32 messageHash); } // SPDX-License-Identifier: Apache-2.0 pragma solidity 0.8.26; /** * @title L1 Message Service interface for pre-existing functions, events, structs and errors. * @author ConsenSys Software Inc. * @custom:security-contact [email protected] */ interface IL1MessageService { /** * @param proof The Merkle proof array related to the claimed message. * @param messageNumber The message number of the claimed message. * @param leafIndex The leaf index related to the Merkle proof of the message. * @param from The address of the original sender. * @param to The address the message is intended for. * @param fee The fee being paid for the message delivery. * @param value The value to be transferred to the destination address. * @param feeRecipient The recipient for the fee. * @param merkleRoot The Merkle root of the claimed message. * @param data The calldata to pass to the recipient. */ struct ClaimMessageWithProofParams { bytes32[] proof; uint256 messageNumber; uint32 leafIndex; address from; address to; uint256 fee; uint256 value; address payable feeRecipient; bytes32 merkleRoot; bytes data; } /** * @dev Thrown when L2 Merkle root does not exist. */ error L2MerkleRootDoesNotExist(); /** * @dev Thrown when the Merkle proof is invalid. */ error InvalidMerkleProof(); /** * @dev Thrown when Merkle depth doesn't match proof length. */ error ProofLengthDifferentThanMerkleDepth(uint256 actual, uint256 expected); /** * @notice Claims and delivers a cross-chain message using a Merkle proof. * @dev if tree depth is empty, it will revert with L2MerkleRootDoesNotExist. * @dev if tree depth is different than proof size, it will revert with ProofLengthDifferentThanMerkleDepth. * @param _params Collection of claim data with proof and supporting data. */ function claimMessageWithProof(ClaimMessageWithProofParams calldata _params) external; } // SPDX-License-Identifier: Apache-2.0 pragma solidity 0.8.26; import { IPauseManager } from "../../interfaces/IPauseManager.sol"; import { IPermissionsManager } from "../../interfaces/IPermissionsManager.sol"; /** * @title LineaRollup interface for current functions, structs, events and errors. * @author ConsenSys Software Inc. * @custom:security-contact [email protected] */ interface ILineaRollup { /** * @notice Initialization data structure for the LineaRollup contract. * @param initialStateRootHash The initial state root hash at initialization used for proof verification. * @param initialL2BlockNumber The initial block number at initialization. * @param genesisTimestamp The L2 genesis timestamp for first initialization. * @param defaultVerifier The default verifier for rollup proofs. * @param rateLimitPeriodInSeconds The period in which withdrawal amounts and fees will be accumulated. * @param rateLimitAmountInWei The limit allowed for withdrawing in the rate limit period. * @param roleAddresses The list of role address and roles to assign permissions to. * @param pauseTypeRoles The list of pause types to associate with roles. * @param unpauseTypeRoles The list of unpause types to associate with roles. * @param fallbackOperator The account to be given OPERATOR_ROLE on when the time since last finalization lapses. * @param defaultAdmin The account to be given DEFAULT_ADMIN_ROLE on initialization. */ struct InitializationData { bytes32 initialStateRootHash; uint256 initialL2BlockNumber; uint256 genesisTimestamp; address defaultVerifier; uint256 rateLimitPeriodInSeconds; uint256 rateLimitAmountInWei; IPermissionsManager.RoleAddress[] roleAddresses; IPauseManager.PauseTypeRole[] pauseTypeRoles; IPauseManager.PauseTypeRole[] unpauseTypeRoles; address fallbackOperator; address defaultAdmin; } /** * @notice Supporting data for compressed calldata submission including compressed data. * @dev finalStateRootHash is used to set state root at the end of the data. * @dev snarkHash is the computed hash for compressed data (using a SNARK-friendly hash function) that aggregates per data submission to be used in public input. * @dev compressedData is the compressed transaction data. It contains ordered data for each L2 block - l2Timestamps, the encoded transaction data. */ struct CompressedCalldataSubmission { bytes32 finalStateRootHash; bytes32 snarkHash; bytes compressedData; } /** * @notice Shnarf data for validating a shnarf. * @dev parentShnarf is the parent computed shnarf. * @dev snarkHash is the computed hash for compressed data (using a SNARK-friendly hash function) that aggregates per data submission to be used in public input. * @dev finalStateRootHash is the final state root hash. * @dev dataEvaluationPoint is the data evaluation point. * @dev dataEvaluationClaim is the data evaluation claim. */ struct ShnarfData { bytes32 parentShnarf; bytes32 snarkHash; bytes32 finalStateRootHash; bytes32 dataEvaluationPoint; bytes32 dataEvaluationClaim; } /** * @notice Data stucture for compressed blob data submission. * @dev submissionData The supporting data for blob data submission excluding the compressed data. * @dev dataEvaluationClaim The data evaluation claim. * @dev kzgCommitment The blob KZG commitment. * @dev kzgProof The blob KZG point proof. */ struct BlobSubmission { uint256 dataEvaluationClaim; bytes kzgCommitment; bytes kzgProof; bytes32 finalStateRootHash; bytes32 snarkHash; } /** * @notice Supporting data for finalization with proof. * @dev NB: the dynamic sized fields are placed last on purpose for efficient keccaking on public input. * @dev parentStateRootHash is the expected last state root hash finalized. * @dev endBlockNumber is the end block finalizing until. * @dev shnarfData contains data about the last data submission's shnarf used in finalization. * @dev lastFinalizedTimestamp is the expected last finalized block's timestamp. * @dev finalTimestamp is the timestamp of the last block being finalized. * @dev lastFinalizedL1RollingHash is the last stored L2 computed rolling hash used in finalization. * @dev l1RollingHash is the calculated rolling hash on L2 that is expected to match L1 at l1RollingHashMessageNumber. * This value will be used along with the stored last finalized L2 calculated rolling hash in the public input. * @dev lastFinalizedL1RollingHashMessageNumber is the last stored L2 computed message number used in finalization. * @dev l1RollingHashMessageNumber is the calculated message number on L2 that is expected to match the existing L1 rolling hash. * This value will be used along with the stored last finalized L2 calculated message number in the public input. * @dev l2MerkleTreesDepth is the depth of all l2MerkleRoots. * @dev l2MerkleRoots is an array of L2 message Merkle roots of depth l2MerkleTreesDepth between last finalized block and finalSubmissionData.finalBlockNumber. * @dev l2MessagingBlocksOffsets indicates by offset from currentL2BlockNumber which L2 blocks contain MessageSent events. */ struct FinalizationDataV3 { bytes32 parentStateRootHash; uint256 endBlockNumber; ShnarfData shnarfData; uint256 lastFinalizedTimestamp; uint256 finalTimestamp; bytes32 lastFinalizedL1RollingHash; bytes32 l1RollingHash; uint256 lastFinalizedL1RollingHashMessageNumber; uint256 l1RollingHashMessageNumber; uint256 l2MerkleTreesDepth; bytes32[] l2MerkleRoots; bytes l2MessagingBlocksOffsets; } /** * @notice Emitted when the LineaRollup contract version has changed. * @dev All bytes8 values are string based SemVer in the format M.m - e.g. "6.0". * @param previousVersion The previous version. * @param newVersion The new version. */ event LineaRollupVersionChanged(bytes8 indexed previousVersion, bytes8 indexed newVersion); /** * @notice Emitted when the fallback operator role is granted. * @param caller The address that called the function granting the role. * @param fallbackOperator The fallback operator address that received the operator role. */ event FallbackOperatorRoleGranted(address indexed caller, address indexed fallbackOperator); /** * @notice Emitted when the fallback operator role is set on the contract. * @param caller The address that set the fallback operator address. * @param fallbackOperator The fallback operator address. */ event FallbackOperatorAddressSet(address indexed caller, address indexed fallbackOperator); /** * @notice Emitted when a verifier is set for a particular proof type. * @param verifierAddress The indexed new verifier address being set. * @param proofType The indexed proof type/index that the verifier is mapped to. * @param verifierSetBy The index address who set the verifier at the mapping. * @param oldVerifierAddress Indicates the previous address mapped to the proof type. * @dev The verifier will be set by an account with the VERIFIER_SETTER_ROLE. Typically the Safe. * @dev The oldVerifierAddress can be the zero address. */ event VerifierAddressChanged( address indexed verifierAddress, uint256 indexed proofType, address indexed verifierSetBy, address oldVerifierAddress ); /** * @notice Emitted when compressed data is being submitted and verified succesfully on L1. * @dev The block range is indexed and parent shnarf included for state reconstruction simplicity. * @param parentShnarf The parent shnarf for the data being submitted. * @param shnarf The indexed shnarf for the data being submitted. * @param finalStateRootHash The L2 state root hash that the current blob submission ends on. NB: The last blob in the collection. */ event DataSubmittedV3(bytes32 parentShnarf, bytes32 indexed shnarf, bytes32 finalStateRootHash); /** * @notice Emitted when L2 blocks have been finalized on L1. * @param startBlockNumber The indexed L2 block number indicating which block the finalization the data starts from. * @param endBlockNumber The indexed L2 block number indicating which block the finalization the data ends on. * @param shnarf The indexed shnarf being set as currentFinalizedShnarf in the current finalization. * @param parentStateRootHash The parent L2 state root hash that the current finalization starts from. * @param finalStateRootHash The L2 state root hash that the current finalization ends on. */ event DataFinalizedV3( uint256 indexed startBlockNumber, uint256 indexed endBlockNumber, bytes32 indexed shnarf, bytes32 parentStateRootHash, bytes32 finalStateRootHash ); /** * @dev Thrown when the last finalization time has not lapsed when trying to grant the OPERATOR_ROLE to the fallback operator address. */ error LastFinalizationTimeNotLapsed(); /** * @dev Thrown when the point evaluation precompile's call return data field(s) are wrong. */ error PointEvaluationResponseInvalid(uint256 fieldElements, uint256 blsCurveModulus); /** * @dev Thrown when the point evaluation precompile's call return data length is wrong. */ error PrecompileReturnDataLengthWrong(uint256 expected, uint256 actual); /** * @dev Thrown when the point evaluation precompile call returns false. */ error PointEvaluationFailed(); /** * @dev Thrown when the blobhash at an index equals to the zero hash. */ error EmptyBlobDataAtIndex(uint256 index); /** * @dev Thrown when the data for multiple blobs submission has length zero. */ error BlobSubmissionDataIsMissing(); /** * @dev Thrown when a blob has been submitted but there is no data for it. */ error BlobSubmissionDataEmpty(uint256 emptyBlobIndex); /** * @dev Thrown when the current data was already submitted. */ error DataAlreadySubmitted(bytes32 currentDataHash); /** * @dev Thrown when submissionData is empty. */ error EmptySubmissionData(); /** * @dev Thrown when finalizationData.l1RollingHash does not exist on L1 (Feedback loop). */ error L1RollingHashDoesNotExistOnL1(uint256 messageNumber, bytes32 rollingHash); /** * @dev Thrown when finalization state does not match. */ error FinalizationStateIncorrect(bytes32 expected, bytes32 value); /** * @dev Thrown when the final block number in finalization data is less than or equal to the last finalized block during finalization. */ error FinalBlockNumberLessThanOrEqualToLastFinalizedBlock(uint256 finalBlockNumber, uint256 lastFinalizedBlock); /** * @dev Thrown when the final block state equals the zero hash during finalization. */ error FinalBlockStateEqualsZeroHash(); /** * @dev Thrown when final l2 block timestamp higher than current block.timestamp during finalization. */ error FinalizationInTheFuture(uint256 l2BlockTimestamp, uint256 currentBlockTimestamp); /** * @dev Thrown when a rolling hash is provided without a corresponding message number. */ error MissingMessageNumberForRollingHash(bytes32 rollingHash); /** * @dev Thrown when a message number is provided without a corresponding rolling hash. */ error MissingRollingHashForMessageNumber(uint256 messageNumber); /** * @dev Thrown when the first byte is not zero. * @dev This is used explicitly with the four bytes in assembly 0x729eebce. */ error FirstByteIsNotZero(); /** * @dev Thrown when bytes length is not a multiple of 32. */ error BytesLengthNotMultipleOf32(); /** * @dev Thrown when the computed shnarf does not match what is expected. */ error FinalShnarfWrong(bytes32 expected, bytes32 value); /** * @dev Thrown when a shnarf does not exist for a parent blob. */ error ParentBlobNotSubmitted(bytes32 shnarf); /** * @dev Thrown when a shnarf does not exist for the final blob being finalized. */ error FinalBlobNotSubmitted(bytes32 shnarf); /** * @dev Thrown when the fallback operator tries to renounce their operator role. */ error OnlyNonFallbackOperator(); /** * @notice Adds or updates the verifier contract address for a proof type. * @dev VERIFIER_SETTER_ROLE is required to execute. * @param _newVerifierAddress The address for the verifier contract. * @param _proofType The proof type being set/updated. */ function setVerifierAddress(address _newVerifierAddress, uint256 _proofType) external; /** * @notice Sets the fallback operator role to the specified address if six months have passed since the last finalization. * @dev Reverts if six months have not passed since the last finalization. * @param _messageNumber Last finalized L1 message number as part of the feedback loop. * @param _rollingHash Last finalized L1 rolling hash as part of the feedback loop. * @param _lastFinalizedTimestamp Last finalized L2 block timestamp. */ function setFallbackOperator(uint256 _messageNumber, bytes32 _rollingHash, uint256 _lastFinalizedTimestamp) external; /** * @notice Unsets the verifier contract address for a proof type. * @dev VERIFIER_UNSETTER_ROLE is required to execute. * @param _proofType The proof type being set/updated. */ function unsetVerifierAddress(uint256 _proofType) external; /** * @notice Submit one or more EIP-4844 blobs. * @dev OPERATOR_ROLE is required to execute. * @dev This should be a blob carrying transaction. * @param _blobSubmissions The data for blob submission including proofs and required polynomials. * @param _parentShnarf The parent shnarf used in continuity checks as it includes the parentStateRootHash in its computation. * @param _finalBlobShnarf The expected final shnarf post computation of all the blob shnarfs. */ function submitBlobs( BlobSubmission[] calldata _blobSubmissions, bytes32 _parentShnarf, bytes32 _finalBlobShnarf ) external; /** * @notice Submit blobs using compressed data via calldata. * @dev OPERATOR_ROLE is required to execute. * @param _submission The supporting data for compressed data submission including compressed data. * @param _parentShnarf The parent shnarf used in continuity checks as it includes the parentStateRootHash in its computation. * @param _expectedShnarf The expected shnarf post computation of all the submission. */ function submitDataAsCalldata( CompressedCalldataSubmission calldata _submission, bytes32 _parentShnarf, bytes32 _expectedShnarf ) external; /** * @notice Finalize compressed blocks with proof. * @dev OPERATOR_ROLE is required to execute. * @param _aggregatedProof The aggregated proof. * @param _proofType The proof type. * @param _finalizationData The full finalization data. */ function finalizeBlocks( bytes calldata _aggregatedProof, uint256 _proofType, FinalizationDataV3 calldata _finalizationData ) external; } // SPDX-License-Identifier: Apache-2.0 pragma solidity 0.8.26; /** * @title Interface declaring verifier functions. * @author ConsenSys Software Inc. * @custom:security-contact [email protected] */ interface IPlonkVerifier { /** * @notice Interface for verifier contracts. * @param _proof The proof used to verify. * @param _public_inputs The computed public inputs for the proof verification. * @return success Returns true if successfully verified. */ function Verify(bytes calldata _proof, uint256[] calldata _public_inputs) external returns (bool success); } // SPDX-License-Identifier: Apache-2.0 pragma solidity 0.8.26; /** * @title ZkEvm rollup interface for pre-existing functions, events and errors. * @author ConsenSys Software Inc. * @custom:security-contact [email protected] */ interface IZkEvmV2 { /** * @dev Thrown when the starting rootHash does not match the existing state. */ error StartingRootHashDoesNotMatch(); /** * @dev Thrown when zk proof is empty bytes. */ error ProofIsEmpty(); /** * @dev Thrown when zk proof type is invalid. */ error InvalidProofType(); /** * @dev Thrown when zk proof is invalid. */ error InvalidProof(); /** * @dev Thrown when the call to the verifier runs out of gas or reverts internally. */ error InvalidProofOrProofVerificationRanOutOfGas(string errorReason); } // SPDX-License-Identifier: AGPL-3.0 pragma solidity >=0.8.19 <=0.8.26; import { PauseManager } from "./PauseManager.sol"; /** * @title Contract to manage cross-chain function pausing roles for the LineaRollup. * @author ConsenSys Software Inc. * @custom:security-contact [email protected] */ abstract contract LineaRollupPauseManager is PauseManager { /// @notice This is used to pause L1 to L2 communication. bytes32 public constant PAUSE_L1_L2_ROLE = keccak256("PAUSE_L1_L2_ROLE"); /// @notice This is used to unpause L1 to L2 communication. bytes32 public constant UNPAUSE_L1_L2_ROLE = keccak256("UNPAUSE_L1_L2_ROLE"); /// @notice This is used to pause L2 to L1 communication. bytes32 public constant PAUSE_L2_L1_ROLE = keccak256("PAUSE_L2_L1_ROLE"); /// @notice This is used to unpause L2 to L1 communication. bytes32 public constant UNPAUSE_L2_L1_ROLE = keccak256("UNPAUSE_L2_L1_ROLE"); /// @notice This is used to pause blob submission. bytes32 public constant PAUSE_BLOB_SUBMISSION_ROLE = keccak256("PAUSE_BLOB_SUBMISSION_ROLE"); /// @notice This is used to unpause blob submission. bytes32 public constant UNPAUSE_BLOB_SUBMISSION_ROLE = keccak256("UNPAUSE_BLOB_SUBMISSION_ROLE"); /// @notice This is used to pause finalization submission. bytes32 public constant PAUSE_FINALIZATION_ROLE = keccak256("PAUSE_FINALIZATION_ROLE"); /// @notice This is used to unpause finalization submission. bytes32 public constant UNPAUSE_FINALIZATION_ROLE = keccak256("UNPAUSE_FINALIZATION_ROLE"); } // SPDX-License-Identifier: AGPL-3.0 pragma solidity >=0.8.19 <=0.8.26; import { Initializable } from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol"; import { AccessControlUpgradeable } from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol"; import { IPauseManager } from "../interfaces/IPauseManager.sol"; /** * @title Contract to manage cross-chain function pausing. * @author ConsenSys Software Inc. * @custom:security-contact [email protected] */ abstract contract PauseManager is Initializable, IPauseManager, AccessControlUpgradeable { /// @notice This is used to pause all pausable functions. bytes32 public constant PAUSE_ALL_ROLE = keccak256("PAUSE_ALL_ROLE"); /// @notice This is used to unpause all unpausable functions. bytes32 public constant UNPAUSE_ALL_ROLE = keccak256("UNPAUSE_ALL_ROLE"); // @dev DEPRECATED. USE _pauseTypeStatusesBitMap INSTEAD mapping(bytes32 pauseType => bool pauseStatus) public pauseTypeStatuses; /// @dev The bitmap containing the pause statuses mapped by type. uint256 private _pauseTypeStatusesBitMap; /// @dev This maps the pause type to the role that is allowed to pause it. mapping(PauseType pauseType => bytes32 role) private _pauseTypeRoles; /// @dev This maps the unpause type to the role that is allowed to unpause it. mapping(PauseType unPauseType => bytes32 role) private _unPauseTypeRoles; /// @dev Total contract storage is 11 slots with the gap below. /// @dev Keep 7 free storage slots for future implementation updates to avoid storage collision. /// @dev Note: This was reduced previously to cater for new functionality. uint256[7] private __gap; /** * @dev Modifier to make a function callable only when the specific and general types are not paused. * @param _pauseType The pause type value being checked. * Requirements: * * - The type must not be paused. */ modifier whenTypeAndGeneralNotPaused(PauseType _pauseType) { _requireTypeAndGeneralNotPaused(_pauseType); _; } /** * @dev Modifier to make a function callable only when the type is not paused. * @param _pauseType The pause type value being checked. * Requirements: * * - The type must not be paused. */ modifier whenTypeNotPaused(PauseType _pauseType) { _requireTypeNotPaused(_pauseType); _; } /** * @notice Initializes the pause manager with the given pause and unpause roles. * @dev This function is called during contract initialization to set up the pause and unpause roles. * @param _pauseTypeRoleAssignments An array of PauseTypeRole structs defining the pause types and their associated roles. * @param _unpauseTypeRoleAssignments An array of PauseTypeRole structs defining the unpause types and their associated roles. */ function __PauseManager_init( PauseTypeRole[] calldata _pauseTypeRoleAssignments, PauseTypeRole[] calldata _unpauseTypeRoleAssignments ) internal onlyInitializing { for (uint256 i; i < _pauseTypeRoleAssignments.length; i++) { _pauseTypeRoles[_pauseTypeRoleAssignments[i].pauseType] = _pauseTypeRoleAssignments[i].role; emit PauseTypeRoleSet(_pauseTypeRoleAssignments[i].pauseType, _pauseTypeRoleAssignments[i].role); } for (uint256 i; i < _unpauseTypeRoleAssignments.length; i++) { _unPauseTypeRoles[_unpauseTypeRoleAssignments[i].pauseType] = _unpauseTypeRoleAssignments[i].role; emit UnPauseTypeRoleSet(_unpauseTypeRoleAssignments[i].pauseType, _unpauseTypeRoleAssignments[i].role); } } /** * @dev Throws if the specific or general types are paused. * @dev Checks the specific and general pause types. * @param _pauseType The pause type value being checked. */ function _requireTypeAndGeneralNotPaused(PauseType _pauseType) internal view virtual { uint256 pauseBitMap = _pauseTypeStatusesBitMap; if (pauseBitMap & (1 << uint256(_pauseType)) != 0) { revert IsPaused(_pauseType); } if (pauseBitMap & (1 << uint256(PauseType.GENERAL)) != 0) { revert IsPaused(PauseType.GENERAL); } } /** * @dev Throws if the type is paused. * @dev Checks the specific pause type. * @param _pauseType The pause type value being checked. */ function _requireTypeNotPaused(PauseType _pauseType) internal view virtual { if (isPaused(_pauseType)) { revert IsPaused(_pauseType); } } /** * @notice Pauses functionality by specific type. * @dev Requires the role mapped in `_pauseTypeRoles` for the pauseType. * @param _pauseType The pause type value. */ function pauseByType(PauseType _pauseType) external onlyRole(_pauseTypeRoles[_pauseType]) { if (isPaused(_pauseType)) { revert IsPaused(_pauseType); } _pauseTypeStatusesBitMap |= 1 << uint256(_pauseType); emit Paused(_msgSender(), _pauseType); } /** * @notice Unpauses functionality by specific type. * @dev Requires the role mapped in `_unPauseTypeRoles` for the pauseType. * @param _pauseType The pause type value. */ function unPauseByType(PauseType _pauseType) external onlyRole(_unPauseTypeRoles[_pauseType]) { if (!isPaused(_pauseType)) { revert IsNotPaused(_pauseType); } _pauseTypeStatusesBitMap &= ~(1 << uint256(_pauseType)); emit UnPaused(_msgSender(), _pauseType); } /** * @notice Check if a pause type is enabled. * @param _pauseType The pause type value. * @return pauseTypeIsPaused Returns true if the pause type if paused, false otherwise. */ function isPaused(PauseType _pauseType) public view returns (bool pauseTypeIsPaused) { pauseTypeIsPaused = (_pauseTypeStatusesBitMap & (1 << uint256(_pauseType))) != 0; } } // SPDX-License-Identifier: AGPL-3.0 pragma solidity >=0.8.19 <=0.8.26; import { Initializable } from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol"; import { AccessControlUpgradeable } from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol"; import { IGenericErrors } from "../interfaces/IGenericErrors.sol"; import { IPermissionsManager } from "../interfaces/IPermissionsManager.sol"; /** * @title Contract to manage permissions initialization. * @author ConsenSys Software Inc. * @custom:security-contact [email protected] */ abstract contract PermissionsManager is Initializable, AccessControlUpgradeable, IPermissionsManager, IGenericErrors { /** * @notice Sets permissions for a list of addresses and their roles. * @param _roleAddresses The list of addresses and roles to assign permissions to. */ function __Permissions_init(RoleAddress[] calldata _roleAddresses) internal onlyInitializing { for (uint256 i; i < _roleAddresses.length; i++) { if (_roleAddresses[i].addressWithRole == address(0)) { revert ZeroAddressNotAllowed(); } if (_roleAddresses[i].role == 0x0) { revert ZeroHashNotAllowed(); } _grantRole(_roleAddresses[i].role, _roleAddresses[i].addressWithRole); } } } // SPDX-License-Identifier: AGPL-3.0 pragma solidity >=0.8.19 <=0.8.26; /** * @title Contract to manage some efficient hashing functions. * @author ConsenSys Software Inc. * @custom:security-contact [email protected] */ library Utils { /** * @notice Performs a gas optimized keccak hash for two bytes32 values. * @param _left Left value. * @param _right Right value. */ function _efficientKeccak(bytes32 _left, bytes32 _right) internal pure returns (bytes32 value) { /// @solidity memory-safe-assembly assembly { mstore(0x00, _left) mstore(0x20, _right) value := keccak256(0x00, 0x40) } } /** * @notice Performs a gas optimized keccak hash for uint256 and address. * @param _left Left value. * @param _right Right value. */ function _efficientKeccak(uint256 _left, address _right) internal pure returns (bytes32 value) { /// @solidity memory-safe-assembly assembly { mstore(0x00, _left) mstore(0x20, _right) value := keccak256(0x00, 0x40) } } } // SPDX-License-Identifier: AGPL-3.0 pragma solidity 0.8.26; import { Initializable } from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol"; import { AccessControlUpgradeable } from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol"; import { L1MessageService } from "./messageService/l1/L1MessageService.sol"; import { ZkEvmV2 } from "./ZkEvmV2.sol"; import { ILineaRollup } from "./interfaces/l1/ILineaRollup.sol"; import { PermissionsManager } from "./lib/PermissionsManager.sol"; import { Utils } from "./lib/Utils.sol"; /** * @title Contract to manage cross-chain messaging on L1, L2 data submission, and rollup proof verification. * @author ConsenSys Software Inc. * @custom:security-contact [email protected] */ contract LineaRollup is Initializable, AccessControlUpgradeable, ZkEvmV2, L1MessageService, PermissionsManager, ILineaRollup { using Utils for *; /// @notice This is the ABI version and not the reinitialize version. string public constant CONTRACT_VERSION = "6.0"; /// @notice The role required to set/add proof verifiers by type. bytes32 public constant VERIFIER_SETTER_ROLE = keccak256("VERIFIER_SETTER_ROLE"); /// @notice The role required to set/remove proof verifiers by type. bytes32 public constant VERIFIER_UNSETTER_ROLE = keccak256("VERIFIER_UNSETTER_ROLE"); /// @notice The default genesis shnarf using empty/default hashes and a default state. bytes32 public constant GENESIS_SHNARF = keccak256( abi.encode( EMPTY_HASH, EMPTY_HASH, 0x072ead6777750dc20232d1cee8dc9a395c2d350df4bbaa5096c6f59b214dcecd, EMPTY_HASH, EMPTY_HASH ) ); /// @dev Value indicating a shnarf exists. uint256 internal constant SHNARF_EXISTS_DEFAULT_VALUE = 1; /// @dev The default hash value. bytes32 internal constant EMPTY_HASH = 0x0; /// @dev The BLS Curve modulus value used. uint256 internal constant BLS_CURVE_MODULUS = 52435875175126190479447740508185965837690552500527637822603658699938581184513; /// @dev The well-known precompile address for point evaluation. address internal constant POINT_EVALUATION_PRECOMPILE_ADDRESS = address(0x0a); /// @dev The expected point evaluation return data length. uint256 internal constant POINT_EVALUATION_RETURN_DATA_LENGTH = 64; /// @dev The expected point evaluation field element length returned. uint256 internal constant POINT_EVALUATION_FIELD_ELEMENTS_LENGTH = 4096; /// @dev In practice, when used, this is expected to be a close approximation to 6 months, and is intentional. uint256 internal constant SIX_MONTHS_IN_SECONDS = (365 / 2) * 24 * 60 * 60; /// @dev DEPRECATED in favor of the single blobShnarfExists mapping. mapping(bytes32 dataHash => bytes32 finalStateRootHash) public dataFinalStateRootHashes; /// @dev DEPRECATED in favor of the single blobShnarfExists mapping. mapping(bytes32 dataHash => bytes32 parentHash) public dataParents; /// @dev DEPRECATED in favor of the single blobShnarfExists mapping. mapping(bytes32 dataHash => bytes32 shnarfHash) public dataShnarfHashes; /// @dev DEPRECATED in favor of the single blobShnarfExists mapping. mapping(bytes32 dataHash => uint256 startingBlock) public dataStartingBlock; /// @dev DEPRECATED in favor of the single blobShnarfExists mapping. mapping(bytes32 dataHash => uint256 endingBlock) public dataEndingBlock; /// @dev DEPRECATED in favor of currentFinalizedState hash. uint256 public currentL2StoredL1MessageNumber; /// @dev DEPRECATED in favor of currentFinalizedState hash. bytes32 public currentL2StoredL1RollingHash; /// @notice Contains the most recent finalized shnarf. bytes32 public currentFinalizedShnarf; /** * @dev NB: THIS IS THE ONLY MAPPING BEING USED FOR DATA SUBMISSION TRACKING. * @dev NB: This was shnarfFinalBlockNumbers and is replaced to indicate only that a shnarf exists with a value of 1. */ mapping(bytes32 shnarf => uint256 exists) public blobShnarfExists; /// @notice Hash of the L2 computed L1 message number, rolling hash and finalized timestamp. bytes32 public currentFinalizedState; /// @notice The address of the fallback operator. /// @dev This address is granted the OPERATOR_ROLE after six months of finalization inactivity by the current operators. address public fallbackOperator; /// @dev Total contract storage is 11 slots. /// @custom:oz-upgrades-unsafe-allow constructor constructor() { _disableInitializers(); } /** * @notice Initializes LineaRollup and underlying service dependencies - used for new networks only. * @dev DEFAULT_ADMIN_ROLE is set for the security council. * @dev OPERATOR_ROLE is set for operators. * @dev Note: This is used for new testnets and local/CI testing, and will not replace existing proxy based contracts. * @param _initializationData The initial data used for proof verification. */ function initialize(InitializationData calldata _initializationData) external initializer { if (_initializationData.defaultVerifier == address(0)) { revert ZeroAddressNotAllowed(); } __PauseManager_init(_initializationData.pauseTypeRoles, _initializationData.unpauseTypeRoles); __MessageService_init(_initializationData.rateLimitPeriodInSeconds, _initializationData.rateLimitAmountInWei); /** * @dev DEFAULT_ADMIN_ROLE is set for the security council explicitly, * as the permissions init purposefully does not allow DEFAULT_ADMIN_ROLE to be set. */ _grantRole(DEFAULT_ADMIN_ROLE, _initializationData.defaultAdmin); __Permissions_init(_initializationData.roleAddresses); verifiers[0] = _initializationData.defaultVerifier; fallbackOperator = _initializationData.fallbackOperator; emit FallbackOperatorAddressSet(msg.sender, _initializationData.fallbackOperator); currentL2BlockNumber = _initializationData.initialL2BlockNumber; stateRootHashes[_initializationData.initialL2BlockNumber] = _initializationData.initialStateRootHash; blobShnarfExists[GENESIS_SHNARF] = SHNARF_EXISTS_DEFAULT_VALUE; currentFinalizedShnarf = GENESIS_SHNARF; currentFinalizedState = _computeLastFinalizedState(0, EMPTY_HASH, _initializationData.genesisTimestamp); } /** * @notice Sets permissions for a list of addresses and their roles as well as initialises the PauseManager pauseType:role mappings and fallback operator. * @dev This function is a reinitializer and can only be called once per version. Should be called using an upgradeAndCall transaction to the ProxyAdmin. * @param _roleAddresses The list of addresses and roles to assign permissions to. * @param _pauseTypeRoles The list of pause types to associate with roles. * @param _unpauseTypeRoles The list of unpause types to associate with roles. * @param _fallbackOperator The address of the fallback operator. */ function reinitializeLineaRollupV6( RoleAddress[] calldata _roleAddresses, PauseTypeRole[] calldata _pauseTypeRoles, PauseTypeRole[] calldata _unpauseTypeRoles, address _fallbackOperator ) external reinitializer(6) { __Permissions_init(_roleAddresses); __PauseManager_init(_pauseTypeRoles, _unpauseTypeRoles); if (_fallbackOperator == address(0)) { revert ZeroAddressNotAllowed(); } fallbackOperator = _fallbackOperator; emit FallbackOperatorAddressSet(msg.sender, _fallbackOperator); /// @dev using the constants requires string memory and more complex code. emit LineaRollupVersionChanged(bytes8("5.0"), bytes8("6.0")); } /** * @notice Revokes `role` from the calling account. * @dev Fallback operator cannot renounce role. Reverts with OnlyNonFallbackOperator. * @param _role The role to renounce. * @param _account The account to renounce - can only be the _msgSender(). */ function renounceRole(bytes32 _role, address _account) public override { if (_account == fallbackOperator) { revert OnlyNonFallbackOperator(); } super.renounceRole(_role, _account); } /** * @notice Adds or updates the verifier contract address for a proof type. * @dev VERIFIER_SETTER_ROLE is required to execute. * @param _newVerifierAddress The address for the verifier contract. * @param _proofType The proof type being set/updated. */ function setVerifierAddress(address _newVerifierAddress, uint256 _proofType) external onlyRole(VERIFIER_SETTER_ROLE) { if (_newVerifierAddress == address(0)) { revert ZeroAddressNotAllowed(); } emit VerifierAddressChanged(_newVerifierAddress, _proofType, msg.sender, verifiers[_proofType]); verifiers[_proofType] = _newVerifierAddress; } /** * @notice Sets the fallback operator role to the specified address if six months have passed since the last finalization. * @dev Reverts if six months have not passed since the last finalization. * @param _messageNumber Last finalized L1 message number as part of the feedback loop. * @param _rollingHash Last finalized L1 rolling hash as part of the feedback loop. * @param _lastFinalizedTimestamp Last finalized L2 block timestamp. */ function setFallbackOperator(uint256 _messageNumber, bytes32 _rollingHash, uint256 _lastFinalizedTimestamp) external { if (block.timestamp < _lastFinalizedTimestamp + SIX_MONTHS_IN_SECONDS) { revert LastFinalizationTimeNotLapsed(); } if (currentFinalizedState != _computeLastFinalizedState(_messageNumber, _rollingHash, _lastFinalizedTimestamp)) { revert FinalizationStateIncorrect( currentFinalizedState, _computeLastFinalizedState(_messageNumber, _rollingHash, _lastFinalizedTimestamp) ); } address fallbackOperatorAddress = fallbackOperator; _grantRole(OPERATOR_ROLE, fallbackOperatorAddress); emit FallbackOperatorRoleGranted(msg.sender, fallbackOperatorAddress); } /** * @notice Unset the verifier contract address for a proof type. * @dev VERIFIER_UNSETTER_ROLE is required to execute. * @param _proofType The proof type being set/updated. */ function unsetVerifierAddress(uint256 _proofType) external onlyRole(VERIFIER_UNSETTER_ROLE) { emit VerifierAddressChanged(address(0), _proofType, msg.sender, verifiers[_proofType]); delete verifiers[_proofType]; } /** * @notice Submit one or more EIP-4844 blobs. * @dev OPERATOR_ROLE is required to execute. * @dev This should be a blob carrying transaction. * @param _blobSubmissions The data for blob submission including proofs and required polynomials. * @param _parentShnarf The parent shnarf used in continuity checks as it includes the parentStateRootHash in its computation. * @param _finalBlobShnarf The expected final shnarf post computation of all the blob shnarfs. */ function submitBlobs( BlobSubmission[] calldata _blobSubmissions, bytes32 _parentShnarf, bytes32 _finalBlobShnarf ) external whenTypeAndGeneralNotPaused(PauseType.BLOB_SUBMISSION) onlyRole(OPERATOR_ROLE) { if (_blobSubmissions.length == 0) { revert BlobSubmissionDataIsMissing(); } if (blobhash(_blobSubmissions.length) != EMPTY_HASH) { revert BlobSubmissionDataEmpty(_blobSubmissions.length); } if (blobShnarfExists[_parentShnarf] == 0) { revert ParentBlobNotSubmitted(_parentShnarf); } /** * @dev validate we haven't submitted the last shnarf. There is a final check at the end of the function verifying, * that _finalBlobShnarf was computed correctly. * Note: As only the last shnarf is stored, we don't need to validate shnarfs, * computed for any previous blobs in the submission (if multiple are submitted). */ if (blobShnarfExists[_finalBlobShnarf] != 0) { revert DataAlreadySubmitted(_finalBlobShnarf); } bytes32 currentDataEvaluationPoint; bytes32 currentDataHash; /// @dev Assigning in memory saves a lot of gas vs. calldata reading. BlobSubmission memory blobSubmission; bytes32 computedShnarf = _parentShnarf; for (uint256 i; i < _blobSubmissions.length; i++) { blobSubmission = _blobSubmissions[i]; currentDataHash = blobhash(i); if (currentDataHash == EMPTY_HASH) { revert EmptyBlobDataAtIndex(i); } bytes32 snarkHash = blobSubmission.snarkHash; currentDataEvaluationPoint = Utils._efficientKeccak(snarkHash, currentDataHash); _verifyPointEvaluation( currentDataHash, uint256(currentDataEvaluationPoint), blobSubmission.dataEvaluationClaim, blobSubmission.kzgCommitment, blobSubmission.kzgProof ); computedShnarf = _computeShnarf( computedShnarf, snarkHash, blobSubmission.finalStateRootHash, currentDataEvaluationPoint, bytes32(blobSubmission.dataEvaluationClaim) ); } if (_finalBlobShnarf != computedShnarf) { revert FinalShnarfWrong(_finalBlobShnarf, computedShnarf); } /// @dev use the last shnarf as the submission to store as technically it becomes the next parent shnarf. blobShnarfExists[computedShnarf] = SHNARF_EXISTS_DEFAULT_VALUE; emit DataSubmittedV3(_parentShnarf, computedShnarf, blobSubmission.finalStateRootHash); } /** * @notice Submit blobs using compressed data via calldata. * @dev OPERATOR_ROLE is required to execute. * @param _submission The supporting data for compressed data submission including compressed data. * @param _parentShnarf The parent shnarf used in continuity checks as it includes the parentStateRootHash in its computation. * @param _expectedShnarf The expected shnarf post computation of all the submission. */ function submitDataAsCalldata( CompressedCalldataSubmission calldata _submission, bytes32 _parentShnarf, bytes32 _expectedShnarf ) external whenTypeAndGeneralNotPaused(PauseType.CALLDATA_SUBMISSION) onlyRole(OPERATOR_ROLE) { if (_submission.compressedData.length == 0) { revert EmptySubmissionData(); } if (blobShnarfExists[_expectedShnarf] != 0) { revert DataAlreadySubmitted(_expectedShnarf); } if (blobShnarfExists[_parentShnarf] == 0) { revert ParentBlobNotSubmitted(_parentShnarf); } bytes32 currentDataHash = keccak256(_submission.compressedData); bytes32 dataEvaluationPoint = Utils._efficientKeccak(_submission.snarkHash, currentDataHash); bytes32 computedShnarf = _computeShnarf( _parentShnarf, _submission.snarkHash, _submission.finalStateRootHash, dataEvaluationPoint, _calculateY(_submission.compressedData, dataEvaluationPoint) ); if (_expectedShnarf != computedShnarf) { revert FinalShnarfWrong(_expectedShnarf, computedShnarf); } blobShnarfExists[computedShnarf] = SHNARF_EXISTS_DEFAULT_VALUE; emit DataSubmittedV3(_parentShnarf, computedShnarf, _submission.finalStateRootHash); } /** * @notice Internal function to compute and save the finalization state. * @dev Using assembly this way is cheaper gas wise. * @param _messageNumber Is the last L2 computed L1 message number in the finalization. * @param _rollingHash Is the last L2 computed L1 rolling hash in the finalization. * @param _timestamp The final timestamp in the finalization. */ function _computeLastFinalizedState( uint256 _messageNumber, bytes32 _rollingHash, uint256 _timestamp ) internal pure returns (bytes32 hashedFinalizationState) { assembly { let mPtr := mload(0x40) mstore(mPtr, _messageNumber) mstore(add(mPtr, 0x20), _rollingHash) mstore(add(mPtr, 0x40), _timestamp) hashedFinalizationState := keccak256(mPtr, 0x60) } } /** * @notice Internal function to compute the shnarf more efficiently. * @dev Using assembly this way is cheaper gas wise. * @param _parentShnarf The shnarf of the parent data item. * @param _snarkHash Is the computed hash for compressed data (using a SNARK-friendly hash function) that aggregates per data submission to be used in public input. * @param _finalStateRootHash The final state root hash of the data being submitted. * @param _dataEvaluationPoint The data evaluation point. * @param _dataEvaluationClaim The data evaluation claim. */ function _computeShnarf( bytes32 _parentShnarf, bytes32 _snarkHash, bytes32 _finalStateRootHash, bytes32 _dataEvaluationPoint, bytes32 _dataEvaluationClaim ) internal pure returns (bytes32 shnarf) { assembly { let mPtr := mload(0x40) mstore(mPtr, _parentShnarf) mstore(add(mPtr, 0x20), _snarkHash) mstore(add(mPtr, 0x40), _finalStateRootHash) mstore(add(mPtr, 0x60), _dataEvaluationPoint) mstore(add(mPtr, 0x80), _dataEvaluationClaim) shnarf := keccak256(mPtr, 0xA0) } } /** * @notice Performs point evaluation for the compressed blob. * @dev _dataEvaluationPoint is modular reduced to be lower than the BLS_CURVE_MODULUS for precompile checks. * @param _currentDataHash The current blob versioned hash. * @param _dataEvaluationPoint The data evaluation point. * @param _dataEvaluationClaim The data evaluation claim. * @param _kzgCommitment The blob KZG commitment. * @param _kzgProof The blob KZG point proof. */ function _verifyPointEvaluation( bytes32 _currentDataHash, uint256 _dataEvaluationPoint, uint256 _dataEvaluationClaim, bytes memory _kzgCommitment, bytes memory _kzgProof ) internal view { assembly { _dataEvaluationPoint := mod(_dataEvaluationPoint, BLS_CURVE_MODULUS) } (bool success, bytes memory returnData) = POINT_EVALUATION_PRECOMPILE_ADDRESS.staticcall( abi.encodePacked(_currentDataHash, _dataEvaluationPoint, _dataEvaluationClaim, _kzgCommitment, _kzgProof) ); if (!success) { revert PointEvaluationFailed(); } if (returnData.length != POINT_EVALUATION_RETURN_DATA_LENGTH) { revert PrecompileReturnDataLengthWrong(POINT_EVALUATION_RETURN_DATA_LENGTH, returnData.length); } uint256 fieldElements; uint256 blsCurveModulus; assembly { fieldElements := mload(add(returnData, 0x20)) blsCurveModulus := mload(add(returnData, POINT_EVALUATION_RETURN_DATA_LENGTH)) } if (fieldElements != POINT_EVALUATION_FIELD_ELEMENTS_LENGTH || blsCurveModulus != BLS_CURVE_MODULUS) { revert PointEvaluationResponseInvalid(fieldElements, blsCurveModulus); } } /** * @notice Finalize compressed blocks with proof. * @dev OPERATOR_ROLE is required to execute. * @param _aggregatedProof The aggregated proof. * @param _proofType The proof type. * @param _finalizationData The full finalization data. */ function finalizeBlocks( bytes calldata _aggregatedProof, uint256 _proofType, FinalizationDataV3 calldata _finalizationData ) external whenTypeAndGeneralNotPaused(PauseType.FINALIZATION) onlyRole(OPERATOR_ROLE) { if (_aggregatedProof.length == 0) { revert ProofIsEmpty(); } uint256 lastFinalizedBlockNumber = currentL2BlockNumber; if (stateRootHashes[lastFinalizedBlockNumber] != _finalizationData.parentStateRootHash) { revert StartingRootHashDoesNotMatch(); } /// @dev currentFinalizedShnarf is updated in _finalizeBlocks and lastFinalizedShnarf MUST be set beforehand for the transition. bytes32 lastFinalizedShnarf = currentFinalizedShnarf; bytes32 finalShnarf = _finalizeBlocks(_finalizationData, lastFinalizedBlockNumber); uint256 publicInput = _computePublicInput( _finalizationData, lastFinalizedShnarf, finalShnarf, lastFinalizedBlockNumber, _finalizationData.endBlockNumber ); _verifyProof(publicInput, _proofType, _aggregatedProof); } /** * @notice Internal function to finalize compressed blocks. * @param _finalizationData The full finalization data. * @param _lastFinalizedBlock The last finalized block. * @return finalShnarf The final computed shnarf in finalizing. */ function _finalizeBlocks( FinalizationDataV3 calldata _finalizationData, uint256 _lastFinalizedBlock ) internal returns (bytes32 finalShnarf) { if (_finalizationData.endBlockNumber <= _lastFinalizedBlock) { revert FinalBlockNumberLessThanOrEqualToLastFinalizedBlock(_finalizationData.endBlockNumber, _lastFinalizedBlock); } _validateL2ComputedRollingHash(_finalizationData.l1RollingHashMessageNumber, _finalizationData.l1RollingHash); if ( _computeLastFinalizedState( _finalizationData.lastFinalizedL1RollingHashMessageNumber, _finalizationData.lastFinalizedL1RollingHash, _finalizationData.lastFinalizedTimestamp ) != currentFinalizedState ) { revert FinalizationStateIncorrect( _computeLastFinalizedState( _finalizationData.lastFinalizedL1RollingHashMessageNumber, _finalizationData.lastFinalizedL1RollingHash, _finalizationData.lastFinalizedTimestamp ), currentFinalizedState ); } if (_finalizationData.finalTimestamp >= block.timestamp) { revert FinalizationInTheFuture(_finalizationData.finalTimestamp, block.timestamp); } if (_finalizationData.shnarfData.finalStateRootHash == EMPTY_HASH) { revert FinalBlockStateEqualsZeroHash(); } finalShnarf = _computeShnarf( _finalizationData.shnarfData.parentShnarf, _finalizationData.shnarfData.snarkHash, _finalizationData.shnarfData.finalStateRootHash, _finalizationData.shnarfData.dataEvaluationPoint, _finalizationData.shnarfData.dataEvaluationClaim ); if (blobShnarfExists[finalShnarf] == 0) { revert FinalBlobNotSubmitted(finalShnarf); } _addL2MerkleRoots(_finalizationData.l2MerkleRoots, _finalizationData.l2MerkleTreesDepth); _anchorL2MessagingBlocks(_finalizationData.l2MessagingBlocksOffsets, _lastFinalizedBlock); stateRootHashes[_finalizationData.endBlockNumber] = _finalizationData.shnarfData.finalStateRootHash; currentL2BlockNumber = _finalizationData.endBlockNumber; currentFinalizedShnarf = finalShnarf; currentFinalizedState = _computeLastFinalizedState( _finalizationData.l1RollingHashMessageNumber, _finalizationData.l1RollingHash, _finalizationData.finalTimestamp ); emit DataFinalizedV3( ++_lastFinalizedBlock, _finalizationData.endBlockNumber, finalShnarf, _finalizationData.parentStateRootHash, _finalizationData.shnarfData.finalStateRootHash ); } /** * @notice Internal function to validate l1 rolling hash. * @param _rollingHashMessageNumber Message number associated with the rolling hash as computed on L2. * @param _rollingHash L1 rolling hash as computed on L2. */ function _validateL2ComputedRollingHash(uint256 _rollingHashMessageNumber, bytes32 _rollingHash) internal view { if (_rollingHashMessageNumber == 0) { if (_rollingHash != EMPTY_HASH) { revert MissingMessageNumberForRollingHash(_rollingHash); } } else { if (_rollingHash == EMPTY_HASH) { revert MissingRollingHashForMessageNumber(_rollingHashMessageNumber); } if (rollingHashes[_rollingHashMessageNumber] != _rollingHash) { revert L1RollingHashDoesNotExistOnL1(_rollingHashMessageNumber, _rollingHash); } } } /** * @notice Internal function to calculate Y for public input generation. * @param _data Compressed data from submission data. * @param _dataEvaluationPoint The data evaluation point. * @dev Each chunk of 32 bytes must start with a 0 byte. * @dev The dataEvaluationPoint value is modulo-ed down during the computation and scalar field checking is not needed. * @dev There is a hard constraint in the circuit to enforce the polynomial degree limit (4096), which will also be enforced with EIP-4844. * @return compressedDataComputedY The Y calculated value using the Horner method. */ function _calculateY( bytes calldata _data, bytes32 _dataEvaluationPoint ) internal pure returns (bytes32 compressedDataComputedY) { if (_data.length % 0x20 != 0) { revert BytesLengthNotMultipleOf32(); } bytes4 errorSelector = ILineaRollup.FirstByteIsNotZero.selector; assembly { for { let i := _data.length } gt(i, 0) { } { i := sub(i, 0x20) let chunk := calldataload(add(_data.offset, i)) if iszero(iszero(and(chunk, 0xFF00000000000000000000000000000000000000000000000000000000000000))) { let ptr := mload(0x40) mstore(ptr, errorSelector) revert(ptr, 0x4) } compressedDataComputedY := addmod( mulmod(compressedDataComputedY, _dataEvaluationPoint, BLS_CURVE_MODULUS), chunk, BLS_CURVE_MODULUS ) } } } /** * @notice Compute the public input. * @dev Using assembly this way is cheaper gas wise. * @dev NB: the dynamic sized fields are placed last in _finalizationData on purpose to optimise hashing ranges. * @dev Computing the public input as the following: * keccak256( * abi.encode( * _lastFinalizedShnarf, * _finalShnarf, * _finalizationData.lastFinalizedTimestamp, * _finalizationData.finalTimestamp, * _lastFinalizedBlockNumber, * _finalizationData.endBlockNumber, * _finalizationData.lastFinalizedL1RollingHash, * _finalizationData.l1RollingHash, * _finalizationData.lastFinalizedL1RollingHashMessageNumber, * _finalizationData.l1RollingHashMessageNumber, * _finalizationData.l2MerkleTreesDepth, * keccak256( * abi.encodePacked(_finalizationData.l2MerkleRoots) * ) * ) * ) * Data is found at the following offsets: * 0x00 parentStateRootHash * 0x20 endBlockNumber * 0x40 shnarfData.parentShnarf * 0x60 shnarfData.snarkHash * 0x80 shnarfData.finalStateRootHash * 0xa0 shnarfData.dataEvaluationPoint * 0xc0 shnarfData.dataEvaluationClaim * 0xe0 lastFinalizedTimestamp * 0x100 finalTimestamp * 0x120 lastFinalizedL1RollingHash * 0x140 l1RollingHash * 0x160 lastFinalizedL1RollingHashMessageNumber * 0x180 l1RollingHashMessageNumber * 0x1a0 l2MerkleTreesDepth * 0x1c0 l2MerkleRootsLengthLocation * 0x1e0 l2MessagingBlocksOffsetsLengthLocation * Dynamic l2MerkleRootsLength * Dynamic l2MerkleRoots * Dynamic l2MessagingBlocksOffsetsLength (location depends on where l2MerkleRoots ends) * Dynamic l2MessagingBlocksOffsets (location depends on where l2MerkleRoots ends) * @param _finalizationData The full finalization data. * @param _finalShnarf The final shnarf in the finalization. * @param _lastFinalizedBlockNumber The last finalized block number. * @param _endBlockNumber End block number being finalized. */ function _computePublicInput( FinalizationDataV3 calldata _finalizationData, bytes32 _lastFinalizedShnarf, bytes32 _finalShnarf, uint256 _lastFinalizedBlockNumber, uint256 _endBlockNumber ) private pure returns (uint256 publicInput) { assembly { let mPtr := mload(0x40) mstore(mPtr, _lastFinalizedShnarf) mstore(add(mPtr, 0x20), _finalShnarf) /** * _finalizationData.lastFinalizedTimestamp * _finalizationData.finalTimestamp */ calldatacopy(add(mPtr, 0x40), add(_finalizationData, 0xe0), 0x40) mstore(add(mPtr, 0x80), _lastFinalizedBlockNumber) // _finalizationData.endBlockNumber mstore(add(mPtr, 0xA0), _endBlockNumber) /** * _finalizationData.lastFinalizedL1RollingHash * _finalizationData.l1RollingHash * _finalizationData.lastFinalizedL1RollingHashMessageNumber * _finalizationData.l1RollingHashMessageNumber * _finalizationData.l2MerkleTreesDepth */ calldatacopy(add(mPtr, 0xC0), add(_finalizationData, 0x120), 0xA0) /** * @dev Note the following in hashing the _finalizationData.l2MerkleRoots array: * The second memory pointer and free pointer are offset by 0x20 to temporarily hash the array outside the scope of working memory, * as we need the space left for the array hash to be stored at 0x160. */ let mPtrMerkleRoot := add(mPtr, 0x180) let merkleRootsLengthLocation := add(_finalizationData, calldataload(add(_finalizationData, 0x1c0))) let merkleRootsLen := calldataload(merkleRootsLengthLocation) calldatacopy(mPtrMerkleRoot, add(merkleRootsLengthLocation, 0x20), mul(merkleRootsLen, 0x20)) let l2MerkleRootsHash := keccak256(mPtrMerkleRoot, mul(merkleRootsLen, 0x20)) mstore(add(mPtr, 0x160), l2MerkleRootsHash) publicInput := mod(keccak256(mPtr, 0x180), MODULO_R) } } } // SPDX-License-Identifier: AGPL-3.0 pragma solidity 0.8.26; import { BitMaps } from "@openzeppelin/contracts/utils/structs/BitMaps.sol"; import { L1MessageManagerV1 } from "./v1/L1MessageManagerV1.sol"; import { IL1MessageManager } from "../../interfaces/l1/IL1MessageManager.sol"; import { Utils } from "../../lib/Utils.sol"; /** * @title Contract to manage cross-chain message rolling hash computation and storage on L1. * @author ConsenSys Software Inc. * @custom:security-contact [email protected] */ abstract contract L1MessageManager is L1MessageManagerV1, IL1MessageManager { using BitMaps for BitMaps.BitMap; using Utils for *; /// @notice Contains the L1 to L2 messaging rolling hashes mapped to message number computed on L1. mapping(uint256 messageNumber => bytes32 rollingHash) public rollingHashes; /// @notice This maps which message numbers have been claimed to prevent duplicate claiming. BitMaps.BitMap internal _messageClaimedBitMap; /// @notice Contains the L2 messages Merkle roots mapped to their tree depth. mapping(bytes32 merkleRoot => uint256 treeDepth) public l2MerkleRootsDepths; /// @dev Total contract storage is 53 slots including the gap below. /// @dev Keep 50 free storage slots for future implementation updates to avoid storage collision. uint256[50] private __gap_L1MessageManager; /** * @notice Take an existing message hash, calculates the rolling hash and stores at the message number. * @param _messageNumber The current message number being sent. * @param _messageHash The hash of the message being sent. */ function _addRollingHash(uint256 _messageNumber, bytes32 _messageHash) internal { unchecked { bytes32 newRollingHash = Utils._efficientKeccak(rollingHashes[_messageNumber - 1], _messageHash); rollingHashes[_messageNumber] = newRollingHash; emit RollingHashUpdated(_messageNumber, newRollingHash, _messageHash); } } /** * @notice Set the L2->L1 message as claimed when a user claims a message on L1. * @param _messageNumber The message number on L2. */ function _setL2L1MessageToClaimed(uint256 _messageNumber) internal { if (_messageClaimedBitMap.get(_messageNumber)) { revert MessageAlreadyClaimed(_messageNumber); } _messageClaimedBitMap.set(_messageNumber); } /** * @notice Add the L2 Merkle roots to the storage. * @dev This function is called during block finalization. * @dev The _treeDepth does not need to be checked to be non-zero as it is, * already enforced to be non-zero in the circuit, and used in the proof's public input. * @param _newRoots New L2 Merkle roots. */ function _addL2MerkleRoots(bytes32[] calldata _newRoots, uint256 _treeDepth) internal { for (uint256 i; i < _newRoots.length; ++i) { if (l2MerkleRootsDepths[_newRoots[i]] != 0) { revert L2MerkleRootAlreadyAnchored(_newRoots[i]); } l2MerkleRootsDepths[_newRoots[i]] = _treeDepth; emit L2MerkleRootAdded(_newRoots[i], _treeDepth); } } /** * @notice Emit an event for each L2 block containing L2->L1 messages. * @dev This function is called during block finalization. * @param _l2MessagingBlocksOffsets Is a sequence of uint16 values, where each value plus the last finalized L2 block number. * indicates which L2 blocks have L2->L1 messages. * @param _currentL2BlockNumber Last L2 block number finalized on L1. */ function _anchorL2MessagingBlocks(bytes calldata _l2MessagingBlocksOffsets, uint256 _currentL2BlockNumber) internal { if (_l2MessagingBlocksOffsets.length % 2 != 0) { revert BytesLengthNotMultipleOfTwo(_l2MessagingBlocksOffsets.length); } uint256 l2BlockOffset; unchecked { for (uint256 i; i < _l2MessagingBlocksOffsets.length; ) { assembly { l2BlockOffset := shr(240, calldataload(add(_l2MessagingBlocksOffsets.offset, i))) } emit L2MessagingBlockAnchored(_currentL2BlockNumber + l2BlockOffset); i += 2; } } } /** * @notice Checks if the L2->L1 message is claimed or not. * @param _messageNumber The message number on L2. * @return isClaimed Returns whether or not the message with _messageNumber has been claimed. */ function isMessageClaimed(uint256 _messageNumber) external view returns (bool isClaimed) { isClaimed = _messageClaimedBitMap.get(_messageNumber); } } // SPDX-License-Identifier: AGPL-3.0 pragma solidity 0.8.26; import { AccessControlUpgradeable } from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol"; import { L1MessageServiceV1 } from "./v1/L1MessageServiceV1.sol"; import { L1MessageManager } from "./L1MessageManager.sol"; import { IL1MessageService } from "../../interfaces/l1/IL1MessageService.sol"; import { IGenericErrors } from "../../interfaces/IGenericErrors.sol"; import { SparseMerkleTreeVerifier } from "../lib/SparseMerkleTreeVerifier.sol"; import { TransientStorageHelpers } from "../lib/TransientStorageHelpers.sol"; import { MessageHashing } from "../lib/MessageHashing.sol"; /** * @title Contract to manage cross-chain messaging on L1. * @author ConsenSys Software Inc. * @custom:security-contact [email protected] */ abstract contract L1MessageService is AccessControlUpgradeable, L1MessageServiceV1, L1MessageManager, IL1MessageService, IGenericErrors { using SparseMerkleTreeVerifier for *; using MessageHashing for *; using TransientStorageHelpers for *; /// @dev This is currently not in use, but is reserved for future upgrades. uint256 public systemMigrationBlock; /// @dev Total contract storage is 51 slots including the gap below. /// @dev Keep 50 free storage slots for future implementation updates to avoid storage collision. uint256[50] private __gap_L1MessageService; /** * @notice Initialises underlying message service dependencies. * @param _rateLimitPeriod The period to rate limit against. * @param _rateLimitAmount The limit allowed for withdrawing the period. */ function __MessageService_init(uint256 _rateLimitPeriod, uint256 _rateLimitAmount) internal onlyInitializing { __ERC165_init(); __Context_init(); __AccessControl_init(); __RateLimiter_init(_rateLimitPeriod, _rateLimitAmount); nextMessageNumber = 1; } /** * @notice Adds a message for sending cross-chain and emits MessageSent. * @dev The message number is preset (nextMessageNumber) and only incremented at the end if successful for the next caller. * @dev This function should be called with a msg.value = _value + _fee. The fee will be paid on the destination chain. * @param _to The address the message is intended for. * @param _fee The fee being paid for the message delivery. * @param _calldata The calldata to pass to the recipient. */ function sendMessage( address _to, uint256 _fee, bytes calldata _calldata ) external payable whenTypeAndGeneralNotPaused(PauseType.L1_L2) { if (_to == address(0)) { revert ZeroAddressNotAllowed(); } if (_fee > msg.value) { revert ValueSentTooLow(); } uint256 messageNumber = nextMessageNumber++; uint256 valueSent = msg.value - _fee; bytes32 messageHash = MessageHashing._hashMessage(msg.sender, _to, _fee, valueSent, messageNumber, _calldata); _addRollingHash(messageNumber, messageHash); emit MessageSent(msg.sender, _to, _fee, valueSent, messageNumber, _calldata, messageHash); } /** * @notice Claims and delivers a cross-chain message using a Merkle proof. * @dev if tree depth is empty, it will revert with L2MerkleRootDoesNotExist. * @dev if tree depth is different than proof size, it will revert with ProofLengthDifferentThanMerkleDepth. * @param _params Collection of claim data with proof and supporting data. */ function claimMessageWithProof( ClaimMessageWithProofParams calldata _params ) external nonReentrant distributeFees(_params.fee, _params.to, _params.data, _params.feeRecipient) { _requireTypeAndGeneralNotPaused(PauseType.L2_L1); uint256 merkleDepth = l2MerkleRootsDepths[_params.merkleRoot]; if (merkleDepth == 0) { revert L2MerkleRootDoesNotExist(); } if (merkleDepth != _params.proof.length) { revert ProofLengthDifferentThanMerkleDepth(merkleDepth, _params.proof.length); } _setL2L1MessageToClaimed(_params.messageNumber); _addUsedAmount(_params.fee + _params.value); bytes32 messageLeafHash = MessageHashing._hashMessage( _params.from, _params.to, _params.fee, _params.value, _params.messageNumber, _params.data ); if ( !SparseMerkleTreeVerifier._verifyMerkleProof( messageLeafHash, _params.proof, _params.leafIndex, _params.merkleRoot ) ) { revert InvalidMerkleProof(); } TransientStorageHelpers.tstoreAddress(MESSAGE_SENDER_TRANSIENT_KEY, _params.from); (bool callSuccess, bytes memory returnData) = _params.to.call{ value: _params.value }(_params.data); if (!callSuccess) { if (returnData.length > 0) { assembly { let data_size := mload(returnData) revert(add(0x20, returnData), data_size) } } else { revert MessageSendingFailed(_params.to); } } TransientStorageHelpers.tstoreAddress(MESSAGE_SENDER_TRANSIENT_KEY, DEFAULT_MESSAGE_SENDER_TRANSIENT_VALUE); emit MessageClaimed(messageLeafHash); } /** * @notice Claims and delivers a cross-chain message. * @dev The message sender address is set temporarily in the transient storage when claiming. * @return originalSender The message sender address that is stored temporarily in the transient storage when claiming. */ function sender() external view returns (address originalSender) { originalSender = TransientStorageHelpers.tloadAddress(MESSAGE_SENDER_TRANSIENT_KEY); } } // SPDX-License-Identifier: AGPL-3.0 pragma solidity 0.8.26; import { TransientStorageHelpers } from "../lib/TransientStorageHelpers.sol"; /** * @title Contract that helps prevent reentrant calls. * @author ConsenSys Software Inc. * @custom:security-contact [email protected] */ abstract contract TransientStorageReentrancyGuardUpgradeable { using TransientStorageHelpers for *; bytes32 private constant REENTRANCY_GUARD_TRANSIENT_KEY = bytes32(uint256(keccak256("eip1967.reentrancy.guard.transient.key")) - 1); uint256 private constant NOT_ENTERED = 0; uint256 private constant ENTERED = 1; error ReentrantCall(); /// @dev This gap is used to not shift down the storage layout after removing the OpenZeppelin ReentrancyGuardUpgradeable contract. uint256[50] private __gap_ReentrancyGuardUpgradeable; modifier nonReentrant() { _nonReentrantBefore(); _; _nonReentrantAfter(); } /** * @notice Checks reentrancy and if not reentrant sets the transient reentry flag. * @dev This uses the TransientStorageHelpers library and REENTRANCY_GUARD_TRANSIENT_KEY. */ function _nonReentrantBefore() private { if (TransientStorageHelpers.tloadUint256(REENTRANCY_GUARD_TRANSIENT_KEY) != NOT_ENTERED) { revert ReentrantCall(); } TransientStorageHelpers.tstoreUint256(REENTRANCY_GUARD_TRANSIENT_KEY, ENTERED); } /** * @notice Clears reentry transient storage flag. * @dev This uses the TransientStorageHelpers library and REENTRANCY_GUARD_TRANSIENT_KEY. */ function _nonReentrantAfter() private { TransientStorageHelpers.tstoreUint256(REENTRANCY_GUARD_TRANSIENT_KEY, NOT_ENTERED); } } // SPDX-License-Identifier: AGPL-3.0 pragma solidity 0.8.26; import { IL1MessageManagerV1 } from "../../../interfaces/l1/IL1MessageManagerV1.sol"; /** * @title Contract to manage cross-chain message hashes storage and status on L1. * @author ConsenSys Software Inc. * @custom:security-contact [email protected] */ abstract contract L1MessageManagerV1 is IL1MessageManagerV1 { /// @notice The 2 legacy status constants for message statuses. uint8 public constant INBOX_STATUS_UNKNOWN = 0; uint8 public constant INBOX_STATUS_RECEIVED = 1; /// @notice The 3 legacy status constants for message statuses. uint8 public constant OUTBOX_STATUS_UNKNOWN = 0; uint8 public constant OUTBOX_STATUS_SENT = 1; uint8 public constant OUTBOX_STATUS_RECEIVED = 2; /// @dev DEPRECATED in favor of the rollingHashes mapping on the L1MessageManager for L1 to L2 messaging. mapping(bytes32 messageHash => uint256 messageStatus) public outboxL1L2MessageStatus; /** * @dev Mapping to store L2->L1 message hashes status. * @dev messageHash => messageStatus (0: unknown, 1: received). * @dev For the most part this has been deprecated. This is only used for messages received pre-AlphaV2. */ mapping(bytes32 messageHash => uint256 messageStatus) public inboxL2L1MessageStatus; /// @dev Keep free storage slots for future implementation updates to avoid storage collision. // ******************************************************************************************* // NB: THIS GAP HAS BEEN PUSHED OUT IN FAVOUR OF THE GAP INSIDE THE REENTRANCY CODE //uint256[50] private __gap; // NB: DO NOT USE THIS GAP // ******************************************************************************************* /// @dev Total contract storage is 2 slots. /** * @notice Update the status of L2->L1 message when a user claims a message on L1. * @dev The L2->L1 message is removed from storage. * @dev Due to the nature of the rollup, we should not get a second entry of this. * @param _messageHash Hash of the message. */ function _updateL2L1MessageStatusToClaimed(bytes32 _messageHash) internal { if (inboxL2L1MessageStatus[_messageHash] != INBOX_STATUS_RECEIVED) { revert MessageDoesNotExistOrHasAlreadyBeenClaimed(_messageHash); } delete inboxL2L1MessageStatus[_messageHash]; } } // SPDX-License-Identifier: AGPL-3.0 pragma solidity 0.8.26; import { Initializable } from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol"; import { LineaRollupPauseManager } from "../../../lib/LineaRollupPauseManager.sol"; import { RateLimiter } from "../../lib/RateLimiter.sol"; import { L1MessageManagerV1 } from "./L1MessageManagerV1.sol"; import { TransientStorageReentrancyGuardUpgradeable } from "../TransientStorageReentrancyGuardUpgradeable.sol"; import { IMessageService } from "../../../interfaces/IMessageService.sol"; import { TransientStorageHelpers } from "../../lib/TransientStorageHelpers.sol"; import { MessageHashing } from "../../lib/MessageHashing.sol"; /** * @title Contract to manage cross-chain messaging on L1. * @author ConsenSys Software Inc. * @custom:security-contact [email protected] */ abstract contract L1MessageServiceV1 is Initializable, RateLimiter, L1MessageManagerV1, TransientStorageReentrancyGuardUpgradeable, LineaRollupPauseManager, IMessageService { using MessageHashing for *; // @dev This is initialised to save user cost with existing slot. uint256 public nextMessageNumber; /// @dev DEPRECATED in favor of new transient storage with `MESSAGE_SENDER_TRANSIENT_KEY` key. address internal _messageSender; /// @dev Total contract storage is 52 slots including the gap below. /// @dev Keep 50 free storage slots for future implementation updates to avoid storage collision. uint256[50] private __gap; /// @dev adding these should not affect storage as they are constants and are stored in bytecode. uint256 internal constant REFUND_OVERHEAD_IN_GAS = 48252; /// @dev The transient storage key to set the message sender against while claiming. bytes32 internal constant MESSAGE_SENDER_TRANSIENT_KEY = bytes32(uint256(keccak256("eip1967.message.sender.transient.key")) - 1); /// @notice The default value for the message sender reset to post claiming using the MESSAGE_SENDER_TRANSIENT_KEY. address internal constant DEFAULT_MESSAGE_SENDER_TRANSIENT_VALUE = address(0); /** * @notice The unspent fee is refunded if applicable. * @param _feeInWei The fee paid for delivery in Wei. * @param _to The recipient of the message and gas refund. * @param _calldata The calldata of the message. */ modifier distributeFees( uint256 _feeInWei, address _to, bytes calldata _calldata, address _feeRecipient ) { //pre-execution uint256 startingGas = gasleft(); _; //post-execution // we have a fee if (_feeInWei > 0) { // default postman fee uint256 deliveryFee = _feeInWei; // do we have empty calldata? if (_calldata.length == 0) { bool isDestinationEOA; assembly { isDestinationEOA := iszero(extcodesize(_to)) } // are we calling an EOA if (isDestinationEOA) { // initial + cost to call and refund minus gasleft deliveryFee = (startingGas + REFUND_OVERHEAD_IN_GAS - gasleft()) * tx.gasprice; if (_feeInWei > deliveryFee) { payable(_to).send(_feeInWei - deliveryFee); } else { deliveryFee = _feeInWei; } } } address feeReceiver = _feeRecipient == address(0) ? msg.sender : _feeRecipient; bool callSuccess = payable(feeReceiver).send(deliveryFee); if (!callSuccess) { revert FeePaymentFailed(feeReceiver); } } } /** * @notice Claims and delivers a cross-chain message. * @dev _feeRecipient can be set to address(0) to receive as msg.sender. * @dev The original message sender address is temporarily set in transient storage, * while claiming. This address is used in sender(). * @param _from The address of the original sender. * @param _to The address the message is intended for. * @param _fee The fee being paid for the message delivery. * @param _value The value to be transferred to the destination address. * @param _feeRecipient The recipient for the fee. * @param _calldata The calldata to pass to the recipient. * @param _nonce The unique auto generated nonce used when sending the message. */ function claimMessage( address _from, address _to, uint256 _fee, uint256 _value, address payable _feeRecipient, bytes calldata _calldata, uint256 _nonce ) external nonReentrant distributeFees(_fee, _to, _calldata, _feeRecipient) { _requireTypeAndGeneralNotPaused(PauseType.L2_L1); /// @dev This is placed earlier to fix the stack issue by using these two earlier on. TransientStorageHelpers.tstoreAddress(MESSAGE_SENDER_TRANSIENT_KEY, _from); bytes32 messageHash = MessageHashing._hashMessage(_from, _to, _fee, _value, _nonce, _calldata); // @dev Status check and revert is in the message manager. _updateL2L1MessageStatusToClaimed(messageHash); _addUsedAmount(_fee + _value); (bool callSuccess, bytes memory returnData) = _to.call{ value: _value }(_calldata); if (!callSuccess) { if (returnData.length > 0) { assembly { let data_size := mload(returnData) revert(add(32, returnData), data_size) } } else { revert MessageSendingFailed(_to); } } TransientStorageHelpers.tstoreAddress(MESSAGE_SENDER_TRANSIENT_KEY, DEFAULT_MESSAGE_SENDER_TRANSIENT_VALUE); emit MessageClaimed(messageHash); } } // SPDX-License-Identifier: AGPL-3.0 pragma solidity >=0.8.19 <=0.8.26; /** * @title Library to hash cross-chain messages. * @author ConsenSys Software Inc. * @custom:security-contact [email protected] */ library MessageHashing { /** * @notice Hashes messages using assembly for efficiency. * @dev Adding 0xc0 is to indicate the calldata offset relative to the memory being added to. * @dev If the calldata is not modulus 32, the extra bit needs to be added on at the end else the hash is wrong. * @param _from The from address. * @param _to The to address. * @param _fee The fee paid for delivery. * @param _valueSent The value to be sent when delivering. * @param _messageNumber The unique message number. * @param _calldata The calldata to be passed to the destination address. */ function _hashMessage( address _from, address _to, uint256 _fee, uint256 _valueSent, uint256 _messageNumber, bytes calldata _calldata ) internal pure returns (bytes32 messageHash) { assembly { let mPtr := mload(0x40) mstore(mPtr, _from) mstore(add(mPtr, 0x20), _to) mstore(add(mPtr, 0x40), _fee) mstore(add(mPtr, 0x60), _valueSent) mstore(add(mPtr, 0x80), _messageNumber) mstore(add(mPtr, 0xa0), 0xc0) mstore(add(mPtr, 0xc0), _calldata.length) let rem := mod(_calldata.length, 0x20) let extra := 0 if iszero(iszero(rem)) { extra := sub(0x20, rem) } calldatacopy(add(mPtr, 0xe0), _calldata.offset, _calldata.length) messageHash := keccak256(mPtr, add(0xe0, add(_calldata.length, extra))) } } } // SPDX-License-Identifier: AGPL-3.0 pragma solidity >=0.8.19 <=0.8.26; import { Initializable } from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol"; import { AccessControlUpgradeable } from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol"; import { IRateLimiter } from "../../interfaces/IRateLimiter.sol"; /** * @title Rate Limiter by period and amount using the block timestamp. * @author ConsenSys Software Inc. * @notice You can use this control numeric limits over a period using timestamp. * @custom:security-contact [email protected] */ contract RateLimiter is Initializable, IRateLimiter, AccessControlUpgradeable { bytes32 public constant RATE_LIMIT_SETTER_ROLE = keccak256("RATE_LIMIT_SETTER_ROLE"); bytes32 public constant USED_RATE_LIMIT_RESETTER_ROLE = keccak256("USED_RATE_LIMIT_RESETTER_ROLE"); uint256 public periodInSeconds; // how much time before limit resets. uint256 public limitInWei; // max ether to withdraw per period. /// @dev Public for ease of consumption. /// @notice The time at which the current period ends at. uint256 public currentPeriodEnd; /// @dev Public for ease of consumption. /// @notice Amounts already withdrawn this period. uint256 public currentPeriodAmountInWei; /// @dev Total contract storage is 14 slots with the gap below. /// @dev Keep 10 free storage slots for future implementation updates to avoid storage collision. uint256[10] private __gap; /** * @notice Initialises the limits and period for the rate limiter. * @param _periodInSeconds The length of the period in seconds. * @param _limitInWei The limit allowed in the period in Wei. */ function __RateLimiter_init(uint256 _periodInSeconds, uint256 _limitInWei) internal onlyInitializing { if (_periodInSeconds == 0) { revert PeriodIsZero(); } if (_limitInWei == 0) { revert LimitIsZero(); } periodInSeconds = _periodInSeconds; limitInWei = _limitInWei; currentPeriodEnd = block.timestamp + _periodInSeconds; emit RateLimitInitialized(periodInSeconds, limitInWei, currentPeriodEnd); } /** * @notice Increments the amount used in the period. * @dev The amount determining logic is external to this (e.g. fees are included when calling here). * @dev Ignores the calculation if _usedAmount is zero. * @dev Reverts if the limit is breached. * @param _usedAmount The amount used to be added. */ function _addUsedAmount(uint256 _usedAmount) internal { if (_usedAmount != 0) { if (currentPeriodEnd < block.timestamp) { currentPeriodEnd = block.timestamp + periodInSeconds; } else { _usedAmount += currentPeriodAmountInWei; } if (_usedAmount > limitInWei) { revert RateLimitExceeded(); } currentPeriodAmountInWei = _usedAmount; } } /** * @notice Resets the rate limit amount. * @dev If the used amount is higher, it is set to the limit to avoid confusion/issues. * @dev Only the RATE_LIMIT_SETTER_ROLE is allowed to execute this function. * @dev Emits the LimitAmountChanged event. * @dev usedLimitAmountToSet will use the default value of zero if period has expired. * @param _amount The amount to reset the limit to. */ function resetRateLimitAmount(uint256 _amount) external onlyRole(RATE_LIMIT_SETTER_ROLE) { uint256 usedLimitAmountToSet; bool amountUsedLoweredToLimit; bool usedAmountResetToZero; if (currentPeriodEnd < block.timestamp) { currentPeriodEnd = block.timestamp + periodInSeconds; usedAmountResetToZero = true; } else { if (_amount < currentPeriodAmountInWei) { usedLimitAmountToSet = _amount; amountUsedLoweredToLimit = true; } } limitInWei = _amount; if (usedAmountResetToZero || amountUsedLoweredToLimit) { currentPeriodAmountInWei = usedLimitAmountToSet; } emit LimitAmountChanged(_msgSender(), _amount, amountUsedLoweredToLimit, usedAmountResetToZero); } /** * @notice Resets the amount used to zero. * @dev Only the USED_RATE_LIMIT_RESETTER_ROLE is allowed to execute this function. * @dev Emits the AmountUsedInPeriodReset event. */ function resetAmountUsedInPeriod() external onlyRole(USED_RATE_LIMIT_RESETTER_ROLE) { currentPeriodAmountInWei = 0; emit AmountUsedInPeriodReset(_msgSender()); } } // SPDX-License-Identifier: AGPL-3.0 pragma solidity 0.8.26; import { Utils } from "../../lib/Utils.sol"; /** * @title Library to verify sparse merkle proofs and to get the leaf hash value * @author ConsenSys Software Inc. * @custom:security-contact [email protected] */ library SparseMerkleTreeVerifier { using Utils for *; /** * @dev Value doesn't fit in a uint of `bits` size. * @dev This is based on OpenZeppelin's SafeCast library. */ error SafeCastOverflowedUintDowncast(uint8 bits, uint256 value); /** * @dev Custom error for when the leaf index is out of bounds. */ error LeafIndexOutOfBounds(uint32 leafIndex, uint32 maxAllowedIndex); /** * @notice Verify merkle proof * @param _leafHash Leaf hash. * @param _proof Sparse merkle tree proof. * @param _leafIndex Index of the leaf. * @param _root Merkle root. * @dev The depth of the tree is expected to be validated elsewhere beforehand. * @return proofIsValid Returns if the proof is valid or not. */ function _verifyMerkleProof( bytes32 _leafHash, bytes32[] calldata _proof, uint32 _leafIndex, bytes32 _root ) internal pure returns (bool proofIsValid) { uint32 maxAllowedIndex = safeCastToUint32((2 ** _proof.length) - 1); if (_leafIndex > maxAllowedIndex) { revert LeafIndexOutOfBounds(_leafIndex, maxAllowedIndex); } bytes32 node = _leafHash; for (uint256 height; height < _proof.length; ++height) { if (((_leafIndex >> height) & 1) == 1) { node = Utils._efficientKeccak(_proof[height], node); } else { node = Utils._efficientKeccak(node, _proof[height]); } } proofIsValid = node == _root; } /** * @notice Tries to safely cast to uint32. * @param _value The value being cast to uint32. * @return castUint32 Returns a uint32 safely cast. * @dev This is based on OpenZeppelin's SafeCast library. */ function safeCastToUint32(uint256 _value) internal pure returns (uint32 castUint32) { if (_value > type(uint32).max) { revert SafeCastOverflowedUintDowncast(32, _value); } castUint32 = uint32(_value); } } // SPDX-License-Identifier: AGPL-3.0 pragma solidity 0.8.26; /** * @title Library that provides helper functions to interact with transient storage. * @author ConsenSys Software Inc. * @custom:security-contact [email protected] */ library TransientStorageHelpers { /** * @notice Internal function that stores a uint256 value at a given key in the EVM's transient storage using the `tstore` opcode. * @param _key The key in the EVM transient storage where the value should be stored. * @param _value The uint256 value to be stored at the specified key in the EVM transient storage. */ function tstoreUint256(bytes32 _key, uint256 _value) internal { assembly { tstore(_key, _value) } } /** * @notice Internal function that retrieves a uint256 value from the EVM's transient storage using the `tload` opcode. * @param _key The key in the EVM transient storage from which the value should be retrieved. * @return value The uint256 value retrieved from the specified key in the EVM transient storage. */ function tloadUint256(bytes32 _key) internal view returns (uint256 value) { assembly { value := tload(_key) } } /** * @notice Internal function that stores an address at a given key in the EVM's transient storage using the `tstore` opcode. * @param _key The key in the EVM transient storage where the value should be stored. * @param _addr The address to be stored at the specified key in the EVM transient storage. */ function tstoreAddress(bytes32 _key, address _addr) internal { assembly { tstore(_key, _addr) } } /** * @notice Internal function that retrieves an address from the EVM's transient storage using the `tload` opcode. * @param _key The key in the EVM transient storage from which the value should be retrieved. * @return addr The address retrieved from the specified key in the EVM transient storage. */ function tloadAddress(bytes32 _key) internal view returns (address addr) { assembly { addr := tload(_key) } } } // SPDX-License-Identifier: AGPL-3.0 pragma solidity 0.8.26; import { Initializable } from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol"; import { AccessControlUpgradeable } from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol"; import { L1MessageServiceV1 } from "./messageService/l1/v1/L1MessageServiceV1.sol"; import { IZkEvmV2 } from "./interfaces/l1/IZkEvmV2.sol"; import { IPlonkVerifier } from "./interfaces/l1/IPlonkVerifier.sol"; /** * @title Contract to manage cross-chain L1 rollup proving. * @author ConsenSys Software Inc. * @custom:security-contact [email protected] */ abstract contract ZkEvmV2 is Initializable, AccessControlUpgradeable, L1MessageServiceV1, IZkEvmV2 { uint256 internal constant MODULO_R = 21888242871839275222246405745257275088548364400416034343698204186575808495617; bytes32 public constant OPERATOR_ROLE = keccak256("OPERATOR_ROLE"); /// @dev DEPRECATED in favor of currentFinalizedState hash. uint256 public currentTimestamp; /// @notice The most recent finalized L2 block number. uint256 public currentL2BlockNumber; /// @notice The most recent L2 state root hash mapped by block number. mapping(uint256 blockNumber => bytes32 stateRootHash) public stateRootHashes; /// @notice The verifier address to use for a proof type when proving. mapping(uint256 proofType => address verifierAddress) public verifiers; /// @dev Total contract storage is 54 slots with the gap below. /// @dev Keep 50 free storage slots for future implementation updates to avoid storage collision. uint256[50] private __gap; /** * @notice Verifies the proof with locally computed public inputs. * @dev If the verifier based on proof type is not found, it reverts with InvalidProofType. * @param _publicInput The computed public input hash cast as uint256. * @param _proofType The proof type to determine which verifier contract to use. * @param _proof The proof to be verified with the proof type verifier contract. */ function _verifyProof(uint256 _publicInput, uint256 _proofType, bytes calldata _proof) internal { uint256[] memory publicInput = new uint256[](1); publicInput[0] = _publicInput; address verifierToUse = verifiers[_proofType]; if (verifierToUse == address(0)) { revert InvalidProofType(); } (bool callSuccess, bytes memory result) = verifierToUse.call( abi.encodeWithSelector(IPlonkVerifier.Verify.selector, _proof, publicInput) ); if (!callSuccess) { if (result.length > 0) { assembly { let dataOffset := add(result, 0x20) // Store the modified first 32 bytes back into memory overwriting the location after having swapped out the selector. mstore( dataOffset, or( // InvalidProofOrProofVerificationRanOutOfGas(string) = 0xca389c44bf373a5a506ab5a7d8a53cb0ea12ba7c5872fd2bc4a0e31614c00a85. shl(224, 0xca389c44), and(mload(dataOffset), 0x00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff) ) ) revert(dataOffset, mload(result)) } } else { revert InvalidProofOrProofVerificationRanOutOfGas("Unknown"); } } bool proofSucceeded = abi.decode(result, (bool)); if (!proofSucceeded) { revert InvalidProof(); } } }