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Similar Match Source Code This contract matches the deployed Bytecode of the Source Code for Contract 0x2c6De2F9...C7D1dF328 The constructor portion of the code might be different and could alter the actual behaviour of the contract
Contract Name:
OVM_L1StandardBridge
Compiler Version
v0.7.6+commit.7338295f
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT // @unsupported: ovm pragma solidity >0.5.0 <0.8.0; pragma experimental ABIEncoderV2; /* Interface Imports */ import { iOVM_L1StandardBridge } from "../../../iOVM/bridge/tokens/iOVM_L1StandardBridge.sol"; import { iOVM_L1ERC20Bridge } from "../../../iOVM/bridge/tokens/iOVM_L1ERC20Bridge.sol"; import { iOVM_L2ERC20Bridge } from "../../../iOVM/bridge/tokens/iOVM_L2ERC20Bridge.sol"; import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol"; /* Library Imports */ import { OVM_CrossDomainEnabled } from "../../../libraries/bridge/OVM_CrossDomainEnabled.sol"; import { Lib_PredeployAddresses } from "../../../libraries/constants/Lib_PredeployAddresses.sol"; import { SafeMath } from "@openzeppelin/contracts/math/SafeMath.sol"; import { Address } from "@openzeppelin/contracts/utils/Address.sol"; import { SafeERC20 } from "@openzeppelin/contracts/token/ERC20/SafeERC20.sol"; /** * @title OVM_L1StandardBridge * @dev The L1 ETH and ERC20 Bridge is a contract which stores deposited L1 funds and standard tokens that are in use on L2. * It synchronizes a corresponding L2 Bridge, informing it of deposits, and listening to it for newly finalized withdrawals. * * Compiler used: solc * Runtime target: EVM */ contract OVM_L1StandardBridge is iOVM_L1StandardBridge, OVM_CrossDomainEnabled { using SafeMath for uint; using SafeERC20 for IERC20; /******************************** * External Contract References * ********************************/ address public l2TokenBridge; // Maps L1 token to L2 token to balance of the L1 token deposited mapping(address => mapping (address => uint256)) public deposits; /*************** * Constructor * ***************/ // This contract lives behind a proxy, so the constructor parameters will go unused. constructor() OVM_CrossDomainEnabled(address(0)) {} /****************** * Initialization * ******************/ /** * @param _l1messenger L1 Messenger address being used for cross-chain communications. * @param _l2TokenBridge L2 standard bridge address. */ function initialize( address _l1messenger, address _l2TokenBridge ) public { require(messenger == address(0), "Contract has already been initialized."); messenger = _l1messenger; l2TokenBridge = _l2TokenBridge; } /************** * Depositing * **************/ /// @dev Modifier requiring sender to be EOA. This check could be bypassed by a malicious contract via initcode, but it takes care of the user error we want to avoid. modifier onlyEOA() { // Used to stop deposits from contracts (avoid accidentally lost tokens) require(!Address.isContract(msg.sender), "Account not EOA"); _; } /** * @dev This function can be called with no data * to deposit an amount of ETH to the caller's balance on L2. * Since the receive function doesn't take data, a conservative * default amount is forwarded to L2. */ receive() external payable onlyEOA() { _initiateETHDeposit( msg.sender, msg.sender, 1_300_000, bytes("") ); } /** * @inheritdoc iOVM_L1StandardBridge */ function depositETH( uint32 _l2Gas, bytes calldata _data ) external override payable onlyEOA() { _initiateETHDeposit( msg.sender, msg.sender, _l2Gas, _data ); } /** * @inheritdoc iOVM_L1StandardBridge */ function depositETHTo( address _to, uint32 _l2Gas, bytes calldata _data ) external override payable { _initiateETHDeposit( msg.sender, _to, _l2Gas, _data ); } /** * @dev Performs the logic for deposits by storing the ETH and informing the L2 ETH Gateway of the deposit. * @param _from Account to pull the deposit from on L1. * @param _to Account to give the deposit to on L2. * @param _l2Gas Gas limit required to complete the deposit on L2. * @param _data Optional data to forward to L2. This data is provided * solely as a convenience for external contracts. Aside from enforcing a maximum * length, these contracts provide no guarantees about its content. */ function _initiateETHDeposit( address _from, address _to, uint32 _l2Gas, bytes memory _data ) internal { // Construct calldata for finalizeDeposit call bytes memory message = abi.encodeWithSelector( iOVM_L2ERC20Bridge.finalizeDeposit.selector, address(0), Lib_PredeployAddresses.OVM_ETH, _from, _to, msg.value, _data ); // Send calldata into L2 sendCrossDomainMessage( l2TokenBridge, _l2Gas, message ); emit ETHDepositInitiated(_from, _to, msg.value, _data); } /** * @inheritdoc iOVM_L1ERC20Bridge */ function depositERC20( address _l1Token, address _l2Token, uint256 _amount, uint32 _l2Gas, bytes calldata _data ) external override virtual onlyEOA() { _initiateERC20Deposit(_l1Token, _l2Token, msg.sender, msg.sender, _amount, _l2Gas, _data); } /** * @inheritdoc iOVM_L1ERC20Bridge */ function depositERC20To( address _l1Token, address _l2Token, address _to, uint256 _amount, uint32 _l2Gas, bytes calldata _data ) external override virtual { _initiateERC20Deposit(_l1Token, _l2Token, msg.sender, _to, _amount, _l2Gas, _data); } /** * @dev Performs the logic for deposits by informing the L2 Deposited Token * contract of the deposit and calling a handler to lock the L1 funds. (e.g. transferFrom) * * @param _l1Token Address of the L1 ERC20 we are depositing * @param _l2Token Address of the L1 respective L2 ERC20 * @param _from Account to pull the deposit from on L1 * @param _to Account to give the deposit to on L2 * @param _amount Amount of the ERC20 to deposit. * @param _l2Gas Gas limit required to complete the deposit on L2. * @param _data Optional data to forward to L2. This data is provided * solely as a convenience for external contracts. Aside from enforcing a maximum * length, these contracts provide no guarantees about its content. */ function _initiateERC20Deposit( address _l1Token, address _l2Token, address _from, address _to, uint256 _amount, uint32 _l2Gas, bytes calldata _data ) internal { // When a deposit is initiated on L1, the L1 Bridge transfers the funds to itself for future withdrawals. // safeTransferFrom also checks if the contract has code, so this will fail if _from is an EOA or address(0). IERC20(_l1Token).safeTransferFrom( _from, address(this), _amount ); // Construct calldata for _l2Token.finalizeDeposit(_to, _amount) bytes memory message = abi.encodeWithSelector( iOVM_L2ERC20Bridge.finalizeDeposit.selector, _l1Token, _l2Token, _from, _to, _amount, _data ); // Send calldata into L2 sendCrossDomainMessage( l2TokenBridge, _l2Gas, message ); deposits[_l1Token][_l2Token] = deposits[_l1Token][_l2Token].add(_amount); emit ERC20DepositInitiated(_l1Token, _l2Token, _from, _to, _amount, _data); } /************************* * Cross-chain Functions * *************************/ /** * @inheritdoc iOVM_L1StandardBridge */ function finalizeETHWithdrawal( address _from, address _to, uint256 _amount, bytes calldata _data ) external override onlyFromCrossDomainAccount(l2TokenBridge) { (bool success, ) = _to.call{value: _amount}(new bytes(0)); require(success, 'TransferHelper::safeTransferETH: ETH transfer failed'); emit ETHWithdrawalFinalized(_from, _to, _amount, _data); } /** * @inheritdoc iOVM_L1ERC20Bridge */ function finalizeERC20Withdrawal( address _l1Token, address _l2Token, address _from, address _to, uint256 _amount, bytes calldata _data ) external override onlyFromCrossDomainAccount(l2TokenBridge) { deposits[_l1Token][_l2Token] = deposits[_l1Token][_l2Token].sub(_amount); // When a withdrawal is finalized on L1, the L1 Bridge transfers the funds to the withdrawer. IERC20(_l1Token).safeTransfer(_to, _amount); emit ERC20WithdrawalFinalized(_l1Token, _l2Token, _from, _to, _amount, _data); } /***************************** * Temporary - Migrating ETH * *****************************/ /** * @dev Adds ETH balance to the account. This is meant to allow for ETH * to be migrated from an old gateway to a new gateway. * NOTE: This is left for one upgrade only so we are able to receive the migrated ETH from the old contract */ function donateETH() external payable {} }
// SPDX-License-Identifier: MIT pragma solidity >=0.6.0 <0.8.0; /** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } /** * @dev Returns the substraction of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b > a) return (false, 0); return (true, a - b); } /** * @dev Returns the multiplication of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b == 0) return (false, 0); return (true, a / b); } /** * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { if (b == 0) return (false, 0); return (true, a % b); } /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "SafeMath: subtraction overflow"); return a - b; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) return 0; uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers, reverting on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: division by zero"); return a / b; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: modulo by zero"); return a % b; } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {trySub}. * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); return a - b; } /** * @dev Returns the integer division of two unsigned integers, reverting with custom message on * division by zero. The result is rounded towards zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryDiv}. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); return a / b; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting with custom message when dividing by zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryMod}. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); return a % b; } }
// SPDX-License-Identifier: MIT pragma solidity >=0.6.0 <0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); }
// SPDX-License-Identifier: MIT pragma solidity >=0.6.0 <0.8.0; import "./IERC20.sol"; import "../../math/SafeMath.sol"; import "../../utils/Address.sol"; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using SafeMath for uint256; using Address for address; function safeTransfer(IERC20 token, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /** * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. */ function safeApprove(IERC20 token, address spender, uint256 value) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' // solhint-disable-next-line max-line-length require((value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 newAllowance = token.allowance(address(this), spender).add(value); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero"); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional // solhint-disable-next-line max-line-length require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } }
// SPDX-License-Identifier: MIT pragma solidity >=0.6.2 <0.8.0; /** * @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 * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; // solhint-disable-next-line no-inline-assembly assembly { size := extcodesize(account) } return size > 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"); // solhint-disable-next-line avoid-low-level-calls, avoid-call-value (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 functionCall(target, data, "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"); require(isContract(target), "Address: call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.call{ value: value }(data); return _verifyCallResult(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) { require(isContract(target), "Address: static call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.staticcall(data); return _verifyCallResult(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) { require(isContract(target), "Address: delegate call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.delegatecall(data); return _verifyCallResult(success, returndata, errorMessage); } function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) { if (success) { return returndata; } else { // 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 // solhint-disable-next-line no-inline-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT pragma solidity >0.5.0 <0.8.0; pragma experimental ABIEncoderV2; /** * @title iOVM_CrossDomainMessenger */ interface iOVM_CrossDomainMessenger { /********** * Events * **********/ event SentMessage(bytes message); event RelayedMessage(bytes32 msgHash); event FailedRelayedMessage(bytes32 msgHash); /************* * Variables * *************/ function xDomainMessageSender() external view returns (address); /******************** * Public Functions * ********************/ /** * Sends a cross domain message to the target messenger. * @param _target Target contract address. * @param _message Message to send to the target. * @param _gasLimit Gas limit for the provided message. */ function sendMessage( address _target, bytes calldata _message, uint32 _gasLimit ) external; }
// SPDX-License-Identifier: MIT pragma solidity >0.5.0; pragma experimental ABIEncoderV2; /** * @title iOVM_L1ERC20Bridge */ interface iOVM_L1ERC20Bridge { /********** * Events * **********/ event ERC20DepositInitiated ( address indexed _l1Token, address indexed _l2Token, address indexed _from, address _to, uint256 _amount, bytes _data ); event ERC20WithdrawalFinalized ( address indexed _l1Token, address indexed _l2Token, address indexed _from, address _to, uint256 _amount, bytes _data ); /******************** * Public Functions * ********************/ /** * @dev deposit an amount of the ERC20 to the caller's balance on L2. * @param _l1Token Address of the L1 ERC20 we are depositing * @param _l2Token Address of the L1 respective L2 ERC20 * @param _amount Amount of the ERC20 to deposit * @param _l2Gas Gas limit required to complete the deposit on L2. * @param _data Optional data to forward to L2. This data is provided * solely as a convenience for external contracts. Aside from enforcing a maximum * length, these contracts provide no guarantees about its content. */ function depositERC20 ( address _l1Token, address _l2Token, uint _amount, uint32 _l2Gas, bytes calldata _data ) external; /** * @dev deposit an amount of ERC20 to a recipient's balance on L2. * @param _l1Token Address of the L1 ERC20 we are depositing * @param _l2Token Address of the L1 respective L2 ERC20 * @param _to L2 address to credit the withdrawal to. * @param _amount Amount of the ERC20 to deposit. * @param _l2Gas Gas limit required to complete the deposit on L2. * @param _data Optional data to forward to L2. This data is provided * solely as a convenience for external contracts. Aside from enforcing a maximum * length, these contracts provide no guarantees about its content. */ function depositERC20To ( address _l1Token, address _l2Token, address _to, uint _amount, uint32 _l2Gas, bytes calldata _data ) external; /************************* * Cross-chain Functions * *************************/ /** * @dev Complete a withdrawal from L2 to L1, and credit funds to the recipient's balance of the * L1 ERC20 token. * This call will fail if the initialized withdrawal from L2 has not been finalized. * * @param _l1Token Address of L1 token to finalizeWithdrawal for. * @param _l2Token Address of L2 token where withdrawal was initiated. * @param _from L2 address initiating the transfer. * @param _to L1 address to credit the withdrawal to. * @param _amount Amount of the ERC20 to deposit. * @param _data Data provided by the sender on L2. This data is provided * solely as a convenience for external contracts. Aside from enforcing a maximum * length, these contracts provide no guarantees about its content. */ function finalizeERC20Withdrawal ( address _l1Token, address _l2Token, address _from, address _to, uint _amount, bytes calldata _data ) external; }
// SPDX-License-Identifier: MIT pragma solidity >0.5.0; pragma experimental ABIEncoderV2; import './iOVM_L1ERC20Bridge.sol'; /** * @title iOVM_L1StandardBridge */ interface iOVM_L1StandardBridge is iOVM_L1ERC20Bridge { /********** * Events * **********/ event ETHDepositInitiated ( address indexed _from, address indexed _to, uint256 _amount, bytes _data ); event ETHWithdrawalFinalized ( address indexed _from, address indexed _to, uint256 _amount, bytes _data ); /******************** * Public Functions * ********************/ /** * @dev Deposit an amount of the ETH to the caller's balance on L2. * @param _l2Gas Gas limit required to complete the deposit on L2. * @param _data Optional data to forward to L2. This data is provided * solely as a convenience for external contracts. Aside from enforcing a maximum * length, these contracts provide no guarantees about its content. */ function depositETH ( uint32 _l2Gas, bytes calldata _data ) external payable; /** * @dev Deposit an amount of ETH to a recipient's balance on L2. * @param _to L2 address to credit the withdrawal to. * @param _l2Gas Gas limit required to complete the deposit on L2. * @param _data Optional data to forward to L2. This data is provided * solely as a convenience for external contracts. Aside from enforcing a maximum * length, these contracts provide no guarantees about its content. */ function depositETHTo ( address _to, uint32 _l2Gas, bytes calldata _data ) external payable; /************************* * Cross-chain Functions * *************************/ /** * @dev Complete a withdrawal from L2 to L1, and credit funds to the recipient's balance of the * L1 ETH token. * Since only the xDomainMessenger can call this function, it will never be called before the withdrawal is finalized. * @param _from L2 address initiating the transfer. * @param _to L1 address to credit the withdrawal to. * @param _amount Amount of the ERC20 to deposit. * @param _data Optional data to forward to L2. This data is provided * solely as a convenience for external contracts. Aside from enforcing a maximum * length, these contracts provide no guarantees about its content. */ function finalizeETHWithdrawal ( address _from, address _to, uint _amount, bytes calldata _data ) external; }
// SPDX-License-Identifier: MIT pragma solidity >0.5.0; pragma experimental ABIEncoderV2; /** * @title iOVM_L2ERC20Bridge */ interface iOVM_L2ERC20Bridge { /********** * Events * **********/ event WithdrawalInitiated ( address indexed _l1Token, address indexed _l2Token, address indexed _from, address _to, uint256 _amount, bytes _data ); event DepositFinalized ( address indexed _l1Token, address indexed _l2Token, address indexed _from, address _to, uint256 _amount, bytes _data ); event DepositFailed ( address indexed _l1Token, address indexed _l2Token, address indexed _from, address _to, uint256 _amount, bytes _data ); /******************** * Public Functions * ********************/ /** * @dev initiate a withdraw of some tokens to the caller's account on L1 * @param _l2Token Address of L2 token where withdrawal was initiated. * @param _amount Amount of the token to withdraw. * param _l1Gas Unused, but included for potential forward compatibility considerations. * @param _data Optional data to forward to L1. This data is provided * solely as a convenience for external contracts. Aside from enforcing a maximum * length, these contracts provide no guarantees about its content. */ function withdraw ( address _l2Token, uint _amount, uint32 _l1Gas, bytes calldata _data ) external; /** * @dev initiate a withdraw of some token to a recipient's account on L1. * @param _l2Token Address of L2 token where withdrawal is initiated. * @param _to L1 adress to credit the withdrawal to. * @param _amount Amount of the token to withdraw. * param _l1Gas Unused, but included for potential forward compatibility considerations. * @param _data Optional data to forward to L1. This data is provided * solely as a convenience for external contracts. Aside from enforcing a maximum * length, these contracts provide no guarantees about its content. */ function withdrawTo ( address _l2Token, address _to, uint _amount, uint32 _l1Gas, bytes calldata _data ) external; /************************* * Cross-chain Functions * *************************/ /** * @dev Complete a deposit from L1 to L2, and credits funds to the recipient's balance of this * L2 token. * This call will fail if it did not originate from a corresponding deposit in OVM_l1TokenGateway. * @param _l1Token Address for the l1 token this is called with * @param _l2Token Address for the l2 token this is called with * @param _from Account to pull the deposit from on L2. * @param _to Address to receive the withdrawal at * @param _amount Amount of the token to withdraw * @param _data Data provider by the sender on L1. This data is provided * solely as a convenience for external contracts. Aside from enforcing a maximum * length, these contracts provide no guarantees about its content. */ function finalizeDeposit ( address _l1Token, address _l2Token, address _from, address _to, uint _amount, bytes calldata _data ) external; }
// SPDX-License-Identifier: MIT pragma solidity >0.5.0 <0.8.0; /* Interface Imports */ import { iOVM_CrossDomainMessenger } from "../../iOVM/bridge/messaging/iOVM_CrossDomainMessenger.sol"; /** * @title OVM_CrossDomainEnabled * @dev Helper contract for contracts performing cross-domain communications * * Compiler used: defined by inheriting contract * Runtime target: defined by inheriting contract */ contract OVM_CrossDomainEnabled { /************* * Variables * *************/ // Messenger contract used to send and recieve messages from the other domain. address public messenger; /*************** * Constructor * ***************/ /** * @param _messenger Address of the CrossDomainMessenger on the current layer. */ constructor( address _messenger ) { messenger = _messenger; } /********************** * Function Modifiers * **********************/ /** * Enforces that the modified function is only callable by a specific cross-domain account. * @param _sourceDomainAccount The only account on the originating domain which is * authenticated to call this function. */ modifier onlyFromCrossDomainAccount( address _sourceDomainAccount ) { require( msg.sender == address(getCrossDomainMessenger()), "OVM_XCHAIN: messenger contract unauthenticated" ); require( getCrossDomainMessenger().xDomainMessageSender() == _sourceDomainAccount, "OVM_XCHAIN: wrong sender of cross-domain message" ); _; } /********************** * Internal Functions * **********************/ /** * Gets the messenger, usually from storage. This function is exposed in case a child contract * needs to override. * @return The address of the cross-domain messenger contract which should be used. */ function getCrossDomainMessenger() internal virtual returns ( iOVM_CrossDomainMessenger ) { return iOVM_CrossDomainMessenger(messenger); } /** * Sends a message to an account on another domain * @param _crossDomainTarget The intended recipient on the destination domain * @param _message The data to send to the target (usually calldata to a function with * `onlyFromCrossDomainAccount()`) * @param _gasLimit The gasLimit for the receipt of the message on the target domain. */ function sendCrossDomainMessage( address _crossDomainTarget, uint32 _gasLimit, bytes memory _message ) internal { getCrossDomainMessenger().sendMessage(_crossDomainTarget, _message, _gasLimit); } }
// SPDX-License-Identifier: MIT pragma solidity >0.5.0 <0.8.0; /** * @title Lib_PredeployAddresses */ library Lib_PredeployAddresses { address internal constant L2_TO_L1_MESSAGE_PASSER = 0x4200000000000000000000000000000000000000; address internal constant L1_MESSAGE_SENDER = 0x4200000000000000000000000000000000000001; address internal constant DEPLOYER_WHITELIST = 0x4200000000000000000000000000000000000002; address internal constant ECDSA_CONTRACT_ACCOUNT = 0x4200000000000000000000000000000000000003; address internal constant SEQUENCER_ENTRYPOINT = 0x4200000000000000000000000000000000000005; address payable internal constant OVM_ETH = 0x4200000000000000000000000000000000000006; address internal constant L2_CROSS_DOMAIN_MESSENGER = 0x4200000000000000000000000000000000000007; address internal constant LIB_ADDRESS_MANAGER = 0x4200000000000000000000000000000000000008; address internal constant PROXY_EOA = 0x4200000000000000000000000000000000000009; address internal constant EXECUTION_MANAGER_WRAPPER = 0x420000000000000000000000000000000000000B; address internal constant SEQUENCER_FEE_WALLET = 0x4200000000000000000000000000000000000011; address internal constant ERC1820_REGISTRY = 0x1820a4B7618BdE71Dce8cdc73aAB6C95905faD24; address internal constant L2_STANDARD_BRIDGE = 0x4200000000000000000000000000000000000010; }
{ "evmVersion": "istanbul", "libraries": {}, "metadata": { "bytecodeHash": "ipfs", "useLiteralContent": true }, "optimizer": { "enabled": true, "runs": 200 }, "remappings": [], "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "abi" ] } } }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_l1Token","type":"address"},{"indexed":true,"internalType":"address","name":"_l2Token","type":"address"},{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":false,"internalType":"address","name":"_to","type":"address"},{"indexed":false,"internalType":"uint256","name":"_amount","type":"uint256"},{"indexed":false,"internalType":"bytes","name":"_data","type":"bytes"}],"name":"ERC20DepositInitiated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_l1Token","type":"address"},{"indexed":true,"internalType":"address","name":"_l2Token","type":"address"},{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":false,"internalType":"address","name":"_to","type":"address"},{"indexed":false,"internalType":"uint256","name":"_amount","type":"uint256"},{"indexed":false,"internalType":"bytes","name":"_data","type":"bytes"}],"name":"ERC20WithdrawalFinalized","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":false,"internalType":"uint256","name":"_amount","type":"uint256"},{"indexed":false,"internalType":"bytes","name":"_data","type":"bytes"}],"name":"ETHDepositInitiated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":false,"internalType":"uint256","name":"_amount","type":"uint256"},{"indexed":false,"internalType":"bytes","name":"_data","type":"bytes"}],"name":"ETHWithdrawalFinalized","type":"event"},{"inputs":[{"internalType":"address","name":"_l1Token","type":"address"},{"internalType":"address","name":"_l2Token","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"uint32","name":"_l2Gas","type":"uint32"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"depositERC20","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_l1Token","type":"address"},{"internalType":"address","name":"_l2Token","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"uint32","name":"_l2Gas","type":"uint32"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"depositERC20To","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint32","name":"_l2Gas","type":"uint32"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"depositETH","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint32","name":"_l2Gas","type":"uint32"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"depositETHTo","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"deposits","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"donateETH","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"_l1Token","type":"address"},{"internalType":"address","name":"_l2Token","type":"address"},{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"finalizeERC20Withdrawal","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"finalizeETHWithdrawal","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_l1messenger","type":"address"},{"internalType":"address","name":"_l2TokenBridge","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"l2TokenBridge","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"messenger","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}]
Deployed Bytecode
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Multichain Portfolio | 26 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.