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Latest 25 from a total of 804 transactions
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Receive Fund Req... | 18771159 | 281 days ago | IN | 0 ETH | 0.05367948 | ||||
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Receive TVL | 18470922 | 323 days ago | IN | 0 ETH | 0.00138256 |
Latest 1 internal transaction
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Contract Name:
L1WormholeRouter
Compiler Version
v0.8.16+commit.07a7930e
Optimization Enabled:
Yes with 256 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: BUSL-1.1 pragma solidity =0.8.16; import {IWormhole} from "../interfaces/IWormhole.sol"; import {L1Vault} from "./L1Vault.sol"; import {WormholeRouter} from "../WormholeRouter.sol"; import {Constants} from "../libs/Constants.sol"; contract L1WormholeRouter is WormholeRouter { function otherLayerWormholeId() public pure override returns (uint16) { return 5; } constructor(L1Vault _vault, IWormhole _wormhole) WormholeRouter(_vault, _wormhole) {} /** * @notice Send tvl message to L2. * @param tvl The current tvl of L1Vault * @param received True if L1Vault received latest transfer from L2. */ function reportTVL(uint256 tvl, bool received) external payable { require(msg.sender == address(vault), "WR: only vault"); bytes memory payload = abi.encode(Constants.L1_TVL, tvl, received); // We use the current tx count (to wormhole) of this contract // as a nonce when publishing messages uint64 sequence = wormhole.nextSequence(address(this)); wormhole.publishMessage{value: msg.value}(uint32(sequence), payload, consistencyLevel); } /// @notice Let L2 know that is should receive `amount` of `asset`. function reportFundTransfer(uint256 amount) external payable { require(msg.sender == address(vault), "WR: only vault"); bytes memory payload = abi.encode(Constants.L1_FUND_TRANSFER_REPORT, amount); uint64 sequence = wormhole.nextSequence(address(this)); wormhole.publishMessage{value: msg.value}(uint32(sequence), payload, consistencyLevel); } /** * @notice Receive message confirming transfer from L2Vault. * @param message The wormhole VAA. * @param data The exitProof for the Polygon Pos Bridge RootChainManager. */ function receiveFunds(bytes calldata message, bytes calldata data) external { (IWormhole.VM memory vm, bool valid, string memory reason) = wormhole.parseAndVerifyVM(message); require(valid, reason); _validateWormholeMessageEmitter(vm); nextValidNonce = vm.nonce + 1; (bytes32 msgType, uint256 amount) = abi.decode(vm.payload, (bytes32, uint256)); require(msgType == Constants.L2_FUND_TRANSFER_REPORT, "WR: bad msg type"); vault.bridgeEscrow().clearFunds(amount, data); } /// @notice Receive `message` with a request for funds from L2. function receiveFundRequest(bytes calldata message) external { (IWormhole.VM memory vm, bool valid, string memory reason) = wormhole.parseAndVerifyVM(message); require(valid, reason); _validateWormholeMessageEmitter(vm); nextValidNonce = vm.nonce + 1; (bytes32 msgType, uint256 amount) = abi.decode(vm.payload, (bytes32, uint256)); require(msgType == Constants.L2_FUND_REQUEST, "WR: bad msg type"); L1Vault(address(vault)).processFundRequest(amount); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol) pragma solidity ^0.8.0; /** * @dev String operations. */ library Strings { bytes16 private constant _HEX_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) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @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] = _HEX_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); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/math/Math.sol) pragma solidity ^0.8.0; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { 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) { return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. require(denominator > prod1); /////////////////////////////////////////////// // 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. It 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)`. // We also know that `k`, the position of the most significant bit, is such that `msb(a) = 2**k`. // This gives `2**k < a <= 2**(k+1)` → `2**(k/2) <= sqrt(a) < 2 ** (k/2+1)`. // Using an algorithm similar to the msb conmputation, we are able to compute `result = 2**(k/2)` which is a // good first aproximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1; uint256 x = a; if (x >> 128 > 0) { x >>= 128; result <<= 64; } if (x >> 64 > 0) { x >>= 64; result <<= 32; } if (x >> 32 > 0) { x >>= 32; result <<= 16; } if (x >> 16 > 0) { x >>= 16; result <<= 8; } if (x >> 8 > 0) { x >>= 8; result <<= 4; } if (x >> 4 > 0) { x >>= 4; result <<= 2; } if (x >> 2 > 0) { result <<= 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) { uint256 result = sqrt(a); if (rounding == Rounding.Up && result * result < a) { result += 1; } return result; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (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 "../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: * * ``` * 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}: * * ``` * 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. */ abstract contract AccessControlUpgradeable is Initializable, ContextUpgradeable, IAccessControlUpgradeable, ERC165Upgradeable { function __AccessControl_init() internal onlyInitializing { } function __AccessControl_init_unchained() internal onlyInitializing { } 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})$/ * * _Available since v4.1._ */ modifier onlyRole(bytes32 role) { _checkRole(role); _; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControlUpgradeable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) public view virtual override returns (bool) { return _roles[role].members[account]; } /** * @dev Revert with a standard message if `_msgSender()` is missing `role`. * Overriding this function changes the behavior of the {onlyRole} modifier. * * Format of the revert message is described in {_checkRole}. * * _Available since v4.6._ */ function _checkRole(bytes32 role) internal view virtual { _checkRole(role, _msgSender()); } /** * @dev Revert with a standard message if `account` is missing `role`. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ */ function _checkRole(bytes32 role, address account) internal view virtual { if (!hasRole(role, account)) { revert( string( abi.encodePacked( "AccessControl: account ", StringsUpgradeable.toHexString(uint160(account), 20), " 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 v4.5.0) (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 IERC1822ProxiableUpgradeable { /** * @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 v4.5.0) (proxy/ERC1967/ERC1967Upgrade.sol) pragma solidity ^0.8.2; import "../beacon/IBeaconUpgradeable.sol"; import "../../interfaces/draft-IERC1822Upgradeable.sol"; import "../../utils/AddressUpgradeable.sol"; import "../../utils/StorageSlotUpgradeable.sol"; import "../utils/Initializable.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 ERC1967UpgradeUpgradeable is Initializable { function __ERC1967Upgrade_init() internal onlyInitializing { } function __ERC1967Upgrade_init_unchained() internal onlyInitializing { } // 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 Emitted when the implementation is upgraded. */ event Upgraded(address indexed implementation); /** * @dev Returns the current implementation address. */ function _getImplementation() internal view returns (address) { return StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value; } /** * @dev Stores a new address in the EIP1967 implementation slot. */ function _setImplementation(address newImplementation) private { require(AddressUpgradeable.isContract(newImplementation), "ERC1967: new implementation is not a contract"); StorageSlotUpgradeable.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) { _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 (StorageSlotUpgradeable.getBooleanSlot(_ROLLBACK_SLOT).value) { _setImplementation(newImplementation); } else { try IERC1822ProxiableUpgradeable(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 Emitted when the admin account has changed. */ event AdminChanged(address previousAdmin, address newAdmin); /** * @dev Returns the current admin. */ function _getAdmin() internal view returns (address) { return StorageSlotUpgradeable.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"); StorageSlotUpgradeable.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 Emitted when the beacon is upgraded. */ event BeaconUpgraded(address indexed beacon); /** * @dev Returns the current beacon. */ function _getBeacon() internal view returns (address) { return StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value; } /** * @dev Stores a new beacon in the EIP1967 beacon slot. */ function _setBeacon(address newBeacon) private { require(AddressUpgradeable.isContract(newBeacon), "ERC1967: new beacon is not a contract"); require( AddressUpgradeable.isContract(IBeaconUpgradeable(newBeacon).implementation()), "ERC1967: beacon implementation is not a contract" ); StorageSlotUpgradeable.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) { _functionDelegateCall(IBeaconUpgradeable(newBeacon).implementation(), data); } } /** * @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) private returns (bytes memory) { require(AddressUpgradeable.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 AddressUpgradeable.verifyCallResult(success, returndata, "Address: low-level delegate call failed"); } /** * @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 (proxy/beacon/IBeacon.sol) pragma solidity ^0.8.0; /** * @dev This is the interface that {BeaconProxy} expects of its beacon. */ interface IBeaconUpgradeable { /** * @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 (last updated v4.7.0) (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] * ``` * 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. Equivalent to `reinitializer(1)`. */ 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. * * `initializer` is equivalent to `reinitializer(1)`, so 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. * * 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. */ 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. */ function _disableInitializers() internal virtual { require(!_initializing, "Initializable: contract is initializing"); if (_initialized < type(uint8).max) { _initialized = type(uint8).max; emit Initialized(type(uint8).max); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (proxy/utils/UUPSUpgradeable.sol) pragma solidity ^0.8.0; import "../../interfaces/draft-IERC1822Upgradeable.sol"; import "../ERC1967/ERC1967UpgradeUpgradeable.sol"; import "./Initializable.sol"; /** * @dev An upgradeability mechanism designed for UUPS proxies. The functions included here can perform an upgrade of an * {ERC1967Proxy}, when this contract is set as the implementation behind such a proxy. * * A security mechanism ensures that an upgrade does not turn off upgradeability accidentally, although this risk is * reinstated if the upgrade retains upgradeability but removes the security mechanism, e.g. by replacing * `UUPSUpgradeable` with a custom implementation of upgrades. * * The {_authorizeUpgrade} function must be overridden to include access restriction to the upgrade mechanism. * * _Available since v4.1._ */ abstract contract UUPSUpgradeable is Initializable, IERC1822ProxiableUpgradeable, ERC1967UpgradeUpgradeable { function __UUPSUpgradeable_init() internal onlyInitializing { } function __UUPSUpgradeable_init_unchained() internal onlyInitializing { } /// @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment address private immutable __self = address(this); /** * @dev Check that the execution is being performed through a delegatecall call and that the execution context is * a proxy contract with an implementation (as defined in ERC1967) pointing to self. This should only be the case * for UUPS and transparent proxies that are using the current contract as their implementation. Execution of a * function through ERC1167 minimal proxies (clones) would not normally pass this test, but is not guaranteed to * fail. */ modifier onlyProxy() { require(address(this) != __self, "Function must be called through delegatecall"); require(_getImplementation() == __self, "Function must be called through active proxy"); _; } /** * @dev Check that the execution is not being performed through a delegate call. This allows a function to be * callable on the implementing contract but not through proxies. */ modifier notDelegated() { require(address(this) == __self, "UUPSUpgradeable: must not be called through delegatecall"); _; } /** * @dev Implementation of the ERC1822 {proxiableUUID} function. This returns the storage slot used by the * implementation. It is used to validate that the this implementation remains valid after an upgrade. * * 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. This is guaranteed by the `notDelegated` modifier. */ function proxiableUUID() external view virtual override notDelegated returns (bytes32) { return _IMPLEMENTATION_SLOT; } /** * @dev Upgrade the implementation of the proxy to `newImplementation`. * * Calls {_authorizeUpgrade}. * * Emits an {Upgraded} event. */ function upgradeTo(address newImplementation) external virtual onlyProxy { _authorizeUpgrade(newImplementation); _upgradeToAndCallUUPS(newImplementation, new bytes(0), false); } /** * @dev Upgrade the implementation of the proxy to `newImplementation`, and subsequently execute the function call * encoded in `data`. * * Calls {_authorizeUpgrade}. * * Emits an {Upgraded} event. */ function upgradeToAndCall(address newImplementation, bytes memory data) external payable virtual onlyProxy { _authorizeUpgrade(newImplementation); _upgradeToAndCallUUPS(newImplementation, data, true); } /** * @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by * {upgradeTo} and {upgradeToAndCall}. * * Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}. * * ```solidity * function _authorizeUpgrade(address) internal override onlyOwner {} * ``` */ function _authorizeUpgrade(address newImplementation) internal virtual; /** * @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 (last updated v4.7.0) (security/Pausable.sol) pragma solidity ^0.8.0; import "../utils/ContextUpgradeable.sol"; import "../proxy/utils/Initializable.sol"; /** * @dev Contract module which allows children to implement an emergency stop * mechanism that can be triggered by an authorized account. * * This module is used through inheritance. It will make available the * modifiers `whenNotPaused` and `whenPaused`, which can be applied to * the functions of your contract. Note that they will not be pausable by * simply including this module, only once the modifiers are put in place. */ abstract contract PausableUpgradeable is Initializable, ContextUpgradeable { /** * @dev Emitted when the pause is triggered by `account`. */ event Paused(address account); /** * @dev Emitted when the pause is lifted by `account`. */ event Unpaused(address account); bool private _paused; /** * @dev Initializes the contract in unpaused state. */ function __Pausable_init() internal onlyInitializing { __Pausable_init_unchained(); } function __Pausable_init_unchained() internal onlyInitializing { _paused = false; } /** * @dev Modifier to make a function callable only when the contract is not paused. * * Requirements: * * - The contract must not be paused. */ modifier whenNotPaused() { _requireNotPaused(); _; } /** * @dev Modifier to make a function callable only when the contract is paused. * * Requirements: * * - The contract must be paused. */ modifier whenPaused() { _requirePaused(); _; } /** * @dev Returns true if the contract is paused, and false otherwise. */ function paused() public view virtual returns (bool) { return _paused; } /** * @dev Throws if the contract is paused. */ function _requireNotPaused() internal view virtual { require(!paused(), "Pausable: paused"); } /** * @dev Throws if the contract is not paused. */ function _requirePaused() internal view virtual { require(paused(), "Pausable: not paused"); } /** * @dev Triggers stopped state. * * Requirements: * * - The contract must not be paused. */ function _pause() internal virtual whenNotPaused { _paused = true; emit Paused(_msgSender()); } /** * @dev Returns to normal state. * * Requirements: * * - The contract must be paused. */ function _unpause() internal virtual whenPaused { _paused = false; emit Unpaused(_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 (last updated v4.7.0) (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 * ==== * * [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 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"); (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"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason 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 { // 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; import "../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; } /** * @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 (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 StorageSlotUpgradeable { 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 } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol) pragma solidity ^0.8.0; /** * @dev String operations. */ library StringsUpgradeable { bytes16 private constant _HEX_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) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @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] = _HEX_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); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; import "./IERC165Upgradeable.sol"; import "../../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 pragma solidity ^0.8.4; /// @notice Contract that enables a single call to call multiple methods on itself. /// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/Multicallable.sol) /// @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/Multicallable.sol) /// @dev WARNING! /// Multicallable is NOT SAFE for use in contracts with checks / requires on `msg.value` /// (e.g. in NFT minting / auction contracts) without a suitable nonce mechanism. /// It WILL open up your contract to double-spend vulnerabilities / exploits. /// See: (https://www.paradigm.xyz/2021/08/two-rights-might-make-a-wrong/) abstract contract Multicallable { function multicall(bytes[] calldata data) public payable returns (bytes[] memory results) { assembly { if data.length { results := mload(0x40) // Point `results` to start of free memory. mstore(results, data.length) // Store `data.length` into `results`. results := add(results, 0x20) // `shl` 5 is equivalent to multiplying by 0x20. let end := shl(5, data.length) // Copy the offsets from calldata into memory. calldatacopy(results, data.offset, end) // Pointer to the top of the memory (i.e. start of the free memory). let memPtr := add(results, end) end := add(results, end) // prettier-ignore for {} 1 {} { // The offset of the current bytes in the calldata. let o := add(data.offset, mload(results)) // Copy the current bytes from calldata to the memory. calldatacopy( memPtr, add(o, 0x20), // The offset of the current bytes' bytes. calldataload(o) // The length of the current bytes. ) if iszero(delegatecall(gas(), address(), memPtr, calldataload(o), 0x00, 0x00)) { // Bubble up the revert if the delegatecall reverts. returndatacopy(0x00, 0x00, returndatasize()) revert(0x00, returndatasize()) } // Append the current `memPtr` into `results`. mstore(results, memPtr) results := add(results, 0x20) // Append the `returndatasize()`, and the return data. mstore(memPtr, returndatasize()) returndatacopy(add(memPtr, 0x20), 0x00, returndatasize()) // Advance the `memPtr` by `returndatasize() + 0x20`, // rounded up to the next multiple of 32. memPtr := and(add(add(memPtr, returndatasize()), 0x3f), 0xffffffffffffffe0) // prettier-ignore if iszero(lt(results, end)) { break } } // Restore `results` and allocate memory for it. results := mload(0x40) mstore(0x40, memPtr) } } } }
// SPDX-License-Identifier: AGPL-3.0-only pragma solidity >=0.8.0; /// @notice Modern and gas efficient ERC20 + EIP-2612 implementation. /// @author Solmate (https://github.com/Rari-Capital/solmate/blob/main/src/tokens/ERC20.sol) /// @author Modified from Uniswap (https://github.com/Uniswap/uniswap-v2-core/blob/master/contracts/UniswapV2ERC20.sol) /// @dev Do not manually set balances without updating totalSupply, as the sum of all user balances must not exceed it. abstract contract ERC20 { /*////////////////////////////////////////////////////////////// EVENTS //////////////////////////////////////////////////////////////*/ event Transfer(address indexed from, address indexed to, uint256 amount); event Approval(address indexed owner, address indexed spender, uint256 amount); /*////////////////////////////////////////////////////////////// METADATA STORAGE //////////////////////////////////////////////////////////////*/ string public name; string public symbol; uint8 public immutable decimals; /*////////////////////////////////////////////////////////////// ERC20 STORAGE //////////////////////////////////////////////////////////////*/ uint256 public totalSupply; mapping(address => uint256) public balanceOf; mapping(address => mapping(address => uint256)) public allowance; /*////////////////////////////////////////////////////////////// EIP-2612 STORAGE //////////////////////////////////////////////////////////////*/ uint256 internal immutable INITIAL_CHAIN_ID; bytes32 internal immutable INITIAL_DOMAIN_SEPARATOR; mapping(address => uint256) public nonces; /*////////////////////////////////////////////////////////////// CONSTRUCTOR //////////////////////////////////////////////////////////////*/ constructor( string memory _name, string memory _symbol, uint8 _decimals ) { name = _name; symbol = _symbol; decimals = _decimals; INITIAL_CHAIN_ID = block.chainid; INITIAL_DOMAIN_SEPARATOR = computeDomainSeparator(); } /*////////////////////////////////////////////////////////////// ERC20 LOGIC //////////////////////////////////////////////////////////////*/ function approve(address spender, uint256 amount) public virtual returns (bool) { allowance[msg.sender][spender] = amount; emit Approval(msg.sender, spender, amount); return true; } function transfer(address to, uint256 amount) public virtual returns (bool) { balanceOf[msg.sender] -= amount; // Cannot overflow because the sum of all user // balances can't exceed the max uint256 value. unchecked { balanceOf[to] += amount; } emit Transfer(msg.sender, to, amount); return true; } function transferFrom( address from, address to, uint256 amount ) public virtual returns (bool) { uint256 allowed = allowance[from][msg.sender]; // Saves gas for limited approvals. if (allowed != type(uint256).max) allowance[from][msg.sender] = allowed - amount; balanceOf[from] -= amount; // Cannot overflow because the sum of all user // balances can't exceed the max uint256 value. unchecked { balanceOf[to] += amount; } emit Transfer(from, to, amount); return true; } /*////////////////////////////////////////////////////////////// EIP-2612 LOGIC //////////////////////////////////////////////////////////////*/ function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) public virtual { require(deadline >= block.timestamp, "PERMIT_DEADLINE_EXPIRED"); // Unchecked because the only math done is incrementing // the owner's nonce which cannot realistically overflow. unchecked { address recoveredAddress = ecrecover( keccak256( abi.encodePacked( "\x19\x01", DOMAIN_SEPARATOR(), keccak256( abi.encode( keccak256( "Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)" ), owner, spender, value, nonces[owner]++, deadline ) ) ) ), v, r, s ); require(recoveredAddress != address(0) && recoveredAddress == owner, "INVALID_SIGNER"); allowance[recoveredAddress][spender] = value; } emit Approval(owner, spender, value); } function DOMAIN_SEPARATOR() public view virtual returns (bytes32) { return block.chainid == INITIAL_CHAIN_ID ? INITIAL_DOMAIN_SEPARATOR : computeDomainSeparator(); } function computeDomainSeparator() internal view virtual returns (bytes32) { return keccak256( abi.encode( keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"), keccak256(bytes(name)), keccak256("1"), block.chainid, address(this) ) ); } /*////////////////////////////////////////////////////////////// INTERNAL MINT/BURN LOGIC //////////////////////////////////////////////////////////////*/ function _mint(address to, uint256 amount) internal virtual { totalSupply += amount; // Cannot overflow because the sum of all user // balances can't exceed the max uint256 value. unchecked { balanceOf[to] += amount; } emit Transfer(address(0), to, amount); } function _burn(address from, uint256 amount) internal virtual { balanceOf[from] -= amount; // Cannot underflow because a user's balance // will never be larger than the total supply. unchecked { totalSupply -= amount; } emit Transfer(from, address(0), amount); } }
// SPDX-License-Identifier: AGPL-3.0-only pragma solidity >=0.8.0; import {ERC20} from "../tokens/ERC20.sol"; /// @notice Safe ETH and ERC20 transfer library that gracefully handles missing return values. /// @author Solmate (https://github.com/Rari-Capital/solmate/blob/main/src/utils/SafeTransferLib.sol) /// @dev Use with caution! Some functions in this library knowingly create dirty bits at the destination of the free memory pointer. /// @dev Note that none of the functions in this library check that a token has code at all! That responsibility is delegated to the caller. library SafeTransferLib { /*////////////////////////////////////////////////////////////// ETH OPERATIONS //////////////////////////////////////////////////////////////*/ function safeTransferETH(address to, uint256 amount) internal { bool success; assembly { // Transfer the ETH and store if it succeeded or not. success := call(gas(), to, amount, 0, 0, 0, 0) } require(success, "ETH_TRANSFER_FAILED"); } /*////////////////////////////////////////////////////////////// ERC20 OPERATIONS //////////////////////////////////////////////////////////////*/ function safeTransferFrom( ERC20 token, address from, address to, uint256 amount ) internal { bool success; assembly { // Get a pointer to some free memory. let freeMemoryPointer := mload(0x40) // Write the abi-encoded calldata into memory, beginning with the function selector. mstore(freeMemoryPointer, 0x23b872dd00000000000000000000000000000000000000000000000000000000) mstore(add(freeMemoryPointer, 4), from) // Append the "from" argument. mstore(add(freeMemoryPointer, 36), to) // Append the "to" argument. mstore(add(freeMemoryPointer, 68), amount) // Append the "amount" argument. success := and( // Set success to whether the call reverted, if not we check it either // returned exactly 1 (can't just be non-zero data), or had no return data. or(and(eq(mload(0), 1), gt(returndatasize(), 31)), iszero(returndatasize())), // We use 100 because the length of our calldata totals up like so: 4 + 32 * 3. // We use 0 and 32 to copy up to 32 bytes of return data into the scratch space. // Counterintuitively, this call must be positioned second to the or() call in the // surrounding and() call or else returndatasize() will be zero during the computation. call(gas(), token, 0, freeMemoryPointer, 100, 0, 32) ) } require(success, "TRANSFER_FROM_FAILED"); } function safeTransfer( ERC20 token, address to, uint256 amount ) internal { bool success; assembly { // Get a pointer to some free memory. let freeMemoryPointer := mload(0x40) // Write the abi-encoded calldata into memory, beginning with the function selector. mstore(freeMemoryPointer, 0xa9059cbb00000000000000000000000000000000000000000000000000000000) mstore(add(freeMemoryPointer, 4), to) // Append the "to" argument. mstore(add(freeMemoryPointer, 36), amount) // Append the "amount" argument. success := and( // Set success to whether the call reverted, if not we check it either // returned exactly 1 (can't just be non-zero data), or had no return data. or(and(eq(mload(0), 1), gt(returndatasize(), 31)), iszero(returndatasize())), // We use 68 because the length of our calldata totals up like so: 4 + 32 * 2. // We use 0 and 32 to copy up to 32 bytes of return data into the scratch space. // Counterintuitively, this call must be positioned second to the or() call in the // surrounding and() call or else returndatasize() will be zero during the computation. call(gas(), token, 0, freeMemoryPointer, 68, 0, 32) ) } require(success, "TRANSFER_FAILED"); } function safeApprove( ERC20 token, address to, uint256 amount ) internal { bool success; assembly { // Get a pointer to some free memory. let freeMemoryPointer := mload(0x40) // Write the abi-encoded calldata into memory, beginning with the function selector. mstore(freeMemoryPointer, 0x095ea7b300000000000000000000000000000000000000000000000000000000) mstore(add(freeMemoryPointer, 4), to) // Append the "to" argument. mstore(add(freeMemoryPointer, 36), amount) // Append the "amount" argument. success := and( // Set success to whether the call reverted, if not we check it either // returned exactly 1 (can't just be non-zero data), or had no return data. or(and(eq(mload(0), 1), gt(returndatasize(), 31)), iszero(returndatasize())), // We use 68 because the length of our calldata totals up like so: 4 + 32 * 2. // We use 0 and 32 to copy up to 32 bytes of return data into the scratch space. // Counterintuitively, this call must be positioned second to the or() call in the // surrounding and() call or else returndatasize() will be zero during the computation. call(gas(), token, 0, freeMemoryPointer, 68, 0, 32) ) } require(success, "APPROVE_FAILED"); } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity =0.8.16; contract AffineGovernable { /// @notice The governance address address public governance; modifier onlyGovernance() { _onlyGovernance(); _; } function _onlyGovernance() internal view { require(msg.sender == governance, "Only Governance."); } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity =0.8.16; import {ERC20} from "solmate/src/tokens/ERC20.sol"; import {BaseVault} from "./BaseVault.sol"; import {SafeTransferLib} from "solmate/src/utils/SafeTransferLib.sol"; import {Strings} from "@openzeppelin/contracts/utils/Strings.sol"; /// @notice Base strategy contract abstract contract BaseStrategy { using SafeTransferLib for ERC20; constructor(BaseVault _vault) { vault = _vault; asset = ERC20(_vault.asset()); } /// @notice The vault which will deposit/withdraw from the this contract BaseVault public immutable vault; modifier onlyVault() { require(msg.sender == address(vault), "BS: only vault"); _; } modifier onlyGovernance() { require(msg.sender == vault.governance(), "BS: only governance"); _; } /// @notice Returns the underlying ERC20 asset the strategy accepts. ERC20 public immutable asset; /// @notice Strategy's balance of underlying asset. /// @return assets Strategy's balance. function balanceOfAsset() public view returns (uint256 assets) { assets = asset.balanceOf(address(this)); } /// @notice Deposit vault's underlying asset into strategy. /// @param amount The amount to invest. /// @dev This function must revert if investment fails. function invest(uint256 amount) external { asset.safeTransferFrom(msg.sender, address(this), amount); _afterInvest(amount); } /// @notice After getting money from the vault, do something with it. /// @param amount The amount received from the vault. /// @dev Since investment is often gas-intensive and may require off-chain data, this will often be unimplemented. /// @dev Strategists will call custom functions for handling deployment of capital. function _afterInvest(uint256 amount) internal virtual {} /// @notice Withdraw vault's underlying asset from strategy. /// @param amount The amount to withdraw. /// @return The amount of `asset` divested from the strategy function divest(uint256 amount) external onlyVault returns (uint256) { return _divest(amount); } /// @dev This function should not revert if we get less than `amount` out of the strategy function _divest(uint256 amount) internal virtual returns (uint256) {} /// @notice The total amount of `asset` that the strategy is managing /// @dev This should not overestimate, and should account for slippage during divestment /// @return The strategy tvl function totalLockedValue() external virtual returns (uint256); function sweep(ERC20 token) external onlyGovernance { token.safeTransfer(vault.governance(), token.balanceOf(address(this))); } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity =0.8.16; import {AccessControlUpgradeable} from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol"; import {Math} from "@openzeppelin/contracts/utils/math/Math.sol"; import {ERC20} from "solmate/src/tokens/ERC20.sol"; import {SafeTransferLib} from "solmate/src/utils/SafeTransferLib.sol"; import {Multicallable} from "solady/src/utils/Multicallable.sol"; import {BaseStrategy as Strategy} from "./BaseStrategy.sol"; import {AffineGovernable} from "./AffineGovernable.sol"; import {BridgeEscrow} from "./BridgeEscrow.sol"; import {WormholeRouter} from "./WormholeRouter.sol"; import {uncheckedInc} from "./libs/Unchecked.sol"; /** * @notice A core contract to be inherited by the L1 and L2 vault contracts. This contract handles adding * and removing strategies, investing in (and divesting from) strategies, harvesting gains/losses, and * strategy liquidation. */ abstract contract BaseVault is AccessControlUpgradeable, AffineGovernable, Multicallable { using SafeTransferLib for ERC20; /*////////////////////////////////////////////////////////////// INITIALIZATION //////////////////////////////////////////////////////////////*/ ERC20 _asset; /// @notice The token that the vault takes in and tries to get more of, e.g. USDC function asset() public view virtual returns (address) { return address(_asset); } /** * @dev Initialize the vault. * @param _governance The governance address. * @param vaultAsset The vault's input asset. * @param _wormholeRouter The wormhole router. * @param _bridgeEscrow Bridge escrow for receiving cross-chain transfers. */ function baseInitialize(address _governance, ERC20 vaultAsset, address _wormholeRouter, BridgeEscrow _bridgeEscrow) internal virtual { governance = _governance; _asset = vaultAsset; wormholeRouter = _wormholeRouter; bridgeEscrow = _bridgeEscrow; // All roles use the default admin role // Governance has the admin role and all roles _grantRole(DEFAULT_ADMIN_ROLE, governance); _grantRole(HARVESTER, governance); lastHarvest = uint128(block.timestamp); } /*////////////////////////////////////////////////////////////// CROSS-CHAIN REBALANCING //////////////////////////////////////////////////////////////*/ /** * @notice A contract used for sending and receiving messages via wormhole. * @dev We use an address since we need to cast this to the L1 and L2 router types. */ address public wormholeRouter; /// @notice A "BridgeEscrow" contract for sending and receiving `token` across a bridge. BridgeEscrow public bridgeEscrow; /** * @notice Update the address of the wormhole router. * @param _router The new router. */ function setWormholeRouter(address _router) external onlyGovernance { emit WormholeRouterSet({oldRouter: wormholeRouter, newRouter: _router}); wormholeRouter = _router; } /** * @notice Update the address of the bridge escrow. * @param _escrow The new escrow. */ function setBridgeEscrow(BridgeEscrow _escrow) external onlyGovernance { emit BridgeEscrowSet({oldEscrow: address(bridgeEscrow), newEscrow: address(_escrow)}); bridgeEscrow = _escrow; } /** * @notice Emitted when the wormhole router is updated. * @param oldRouter The old router. * @param newRouter The new router. */ event WormholeRouterSet(address indexed oldRouter, address indexed newRouter); /** * @notice Emitted when the escorw is updated. * @param oldEscrow The old router. * @param newEscrow The new router. */ event BridgeEscrowSet(address indexed oldEscrow, address indexed newEscrow); /*////////////////////////////////////////////////////////////// AUTHENTICATION //////////////////////////////////////////////////////////////*/ /// @notice Role with authority to call "harvest", i.e. update this vault's tvl bytes32 public constant HARVESTER = keccak256("HARVESTER"); /*////////////////////////////////////////////////////////////// WITHDRAWAL QUEUE //////////////////////////////////////////////////////////////*/ uint8 constant MAX_STRATEGIES = 20; /** * @notice An ordered array of strategies representing the withdrawal queue. The withdrawal queue is used * whenever the vault wants to pull money out of strategies (cross-chain rebalancing and user withdrawals). * @dev The first strategy in the array (index 0) is withdrawn from first. * This is a list of the currently active strategies (all non-zero addresses are active). */ Strategy[MAX_STRATEGIES] public withdrawalQueue; /** * @notice Gets the full withdrawal queue. * @return The withdrawal queue. * @dev This gives easy access to the whole array (by default we can only get one index at a time) */ function getWithdrawalQueue() external view returns (Strategy[MAX_STRATEGIES] memory) { return withdrawalQueue; } /** * @notice Sets a new withdrawal queue. * @param newQueue The new withdrawal queue. */ function setWithdrawalQueue(Strategy[MAX_STRATEGIES] calldata newQueue) external onlyGovernance { // Maintain queue size require(newQueue.length == MAX_STRATEGIES, "BV: bad qu size"); // Replace the withdrawal queue. withdrawalQueue = newQueue; emit WithdrawalQueueSet(newQueue); } /** * @notice Emitted when the withdrawal queue is updated. * @param newQueue The new withdrawal queue. */ event WithdrawalQueueSet(Strategy[MAX_STRATEGIES] newQueue); /*////////////////////////////////////////////////////////////// STRATEGIES //////////////////////////////////////////////////////////////*/ /// @notice The total amount of underlying assets held in strategies at the time of the last harvest. uint256 public totalStrategyHoldings; struct StrategyInfo { bool isActive; uint16 tvlBps; uint232 balance; } /// @notice A map of strategy addresses to details mapping(Strategy => StrategyInfo) public strategies; uint256 constant MAX_BPS = 10_000; /// @notice The number of bps of the vault's tvl which may be given to strategies (at most MAX_BPS) uint256 public totalBps; /// @notice Emitted when a strategy is added by governance event StrategyAdded(Strategy indexed strategy); /// @notice Emitted when a strategy is removed by governance event StrategyRemoved(Strategy indexed strategy); /** * @notice Add a strategy * @param strategy The strategy to add * @param tvlBps The number of bps of our tvl the strategy will get when funds are distributed to strategies */ function addStrategy(Strategy strategy, uint16 tvlBps) external onlyGovernance { _increaseTVLBps(tvlBps); strategies[strategy] = StrategyInfo({isActive: true, tvlBps: tvlBps, balance: 0}); // Add strategy to withdrawal queue withdrawalQueue[MAX_STRATEGIES - 1] = strategy; emit StrategyAdded(strategy); _organizeWithdrawalQueue(); } /// @notice A helper function for increasing `totalBps`. Used when adding strategies or updating strategy allocs function _increaseTVLBps(uint256 tvlBps) internal { uint256 newTotalBps = totalBps + tvlBps; require(newTotalBps <= MAX_BPS, "BV: too many bps"); totalBps = newTotalBps; } /** * @notice Push all zero addresses to the end of the array. This function is used whenever a strategy is * added or removed from the withdrawal queue * @dev Relative ordering of non-zero values is maintained. */ function _organizeWithdrawalQueue() internal { // number or empty values we've seen iterating from left to right uint256 offset; for (uint256 i = 0; i < MAX_STRATEGIES; i = uncheckedInc(i)) { Strategy strategy = withdrawalQueue[i]; if (address(strategy) == address(0)) { offset += 1; } else if (offset > 0) { // index of first empty value seen takes on value of `strategy` withdrawalQueue[i - offset] = strategy; withdrawalQueue[i] = Strategy(address(0)); } } } /** * @notice Remove a strategy from the withdrawal queue. Fully divest from the strategy. * @param strategy The strategy to remove * @dev removeStrategy MUST be called with harvest via multicall. This helps get the most accurate tvl numbers * and allows us to add any realized profits to our lockedProfit */ function removeStrategy(Strategy strategy) external onlyGovernance { for (uint256 i = 0; i < MAX_STRATEGIES; i = uncheckedInc(i)) { if (strategy != withdrawalQueue[i]) { continue; } strategies[strategy].isActive = false; // The vault can re-allocate bps to a new strategy totalBps -= strategies[strategy].tvlBps; strategies[strategy].tvlBps = 0; // Remove strategy from withdrawal queue withdrawalQueue[i] = Strategy(address(0)); emit StrategyRemoved(strategy); _organizeWithdrawalQueue(); // Take all money out of strategy. _withdrawFromStrategy(strategy, strategy.totalLockedValue()); break; } } /** * @notice Update tvl bps assigned to the given list of strategies * @param strategyList The list of strategies * @param strategyBps The new bps */ function updateStrategyAllocations(Strategy[] calldata strategyList, uint16[] calldata strategyBps) external onlyRole(HARVESTER) { for (uint256 i = 0; i < strategyList.length; i = uncheckedInc(i)) { // Get the strategy at the current index. Strategy strategy = strategyList[i]; // Ignore inactive (removed) strategies if (!strategies[strategy].isActive) continue; // update tvl bps totalBps -= strategies[strategy].tvlBps; _increaseTVLBps(strategyBps[i]); strategies[strategy].tvlBps = strategyBps[i]; } emit StrategyAllocsUpdated(strategyList, strategyBps); } /** * @notice Emitted when we update tvl bps for a list of strategies. * @param strategyList The list of strategies. * @param strategyBps The new tvl bps for the strategies */ event StrategyAllocsUpdated(Strategy[] strategyList, uint16[] strategyBps); /*////////////////////////////////////////////////////////////// STRATEGY DEPOSIT/WITHDRAWAL //////////////////////////////////////////////////////////////*/ /** * @notice Emitted after the Vault deposits into a strategy contract. * @param strategy The strategy that was deposited into. * @param assets The amount of assets deposited. */ event StrategyDeposit(Strategy indexed strategy, uint256 assets); /** * @notice Emitted after the Vault withdraws funds from a strategy contract. * @param strategy The strategy that was withdrawn from. * @param assetsRequested The amount of assets we tried to divest from the strategy. * @param assetsReceived The amount of assets actually withdrawn. */ event StrategyWithdrawal(Strategy indexed strategy, uint256 assetsRequested, uint256 assetsReceived); /// @notice Deposit `assetAmount` amount of `asset` into strategies according to each strategy's `tvlBps`. function _depositIntoStrategies(uint256 assetAmount) internal { // All non-zero strategies are active for (uint256 i = 0; i < MAX_STRATEGIES; i = uncheckedInc(i)) { Strategy strategy = withdrawalQueue[i]; if (address(strategy) == address(0)) { break; } _depositIntoStrategy(strategy, (assetAmount * strategies[strategy].tvlBps) / MAX_BPS); } } function _depositIntoStrategy(Strategy strategy, uint256 assets) internal { // Don't allow empty investments if (assets == 0) return; // Increase totalStrategyHoldings to account for the deposit. totalStrategyHoldings += assets; unchecked { // Without this the next harvest would count the deposit as profit. // Cannot overflow as the balance of one strategy can't exceed the sum of all. strategies[strategy].balance += uint232(assets); } // Approve assets to the strategy so we can deposit. _asset.safeApprove(address(strategy), assets); // Deposit into the strategy, will revert upon failure strategy.invest(assets); emit StrategyDeposit(strategy, assets); } /** * @notice Withdraw a specific amount of underlying tokens from a strategy. * @dev This is a "best effort" withdrawal. It could potentially withdraw nothing. * @param strategy The strategy to withdraw from. * @param assets The amount of underlying tokens to withdraw. * @return The amount of assets actually received. */ function _withdrawFromStrategy(Strategy strategy, uint256 assets) internal returns (uint256) { // Withdraw from the strategy uint256 amountWithdrawn = _divest(strategy, assets); // Without this the next harvest would count the withdrawal as a loss. // We update the balance to the current tvl because a withdrawal can reduce the tvl by more than the amount // withdrawn (e.g. fees during a swap) uint256 oldStratTVL = strategies[strategy].balance; uint256 newStratTvl = strategy.totalLockedValue(); strategies[strategy].balance = uint232(newStratTvl); // Decrease totalStrategyHoldings to account for the withdrawal. // If we haven't harvested in a long time, newStratTvl could be bigger than oldStratTvl totalStrategyHoldings -= oldStratTVL > newStratTvl ? oldStratTVL - newStratTvl : 0; emit StrategyWithdrawal({strategy: strategy, assetsRequested: assets, assetsReceived: amountWithdrawn}); return amountWithdrawn; } /// @dev A small wrapper around divest(). We try-catch to make sure that a bad strategy does not pause withdrawals. function _divest(Strategy strategy, uint256 assets) internal returns (uint256) { try strategy.divest(assets) returns (uint256 amountDivested) { return amountDivested; } catch { return 0; } } /*////////////////////////////////////////////////////////////// HARVESTING //////////////////////////////////////////////////////////////*/ /** * @notice A timestamp representing when the most recent harvest occurred. * @dev Since the time since the last harvest is used to calculate management fees, this is set * to `block.timestamp` (instead of 0) during initialization. */ uint128 public lastHarvest; /// @notice The amount of profit *originally* locked after harvesting from a strategy uint128 public maxLockedProfit; /// @notice Amount of time in seconds that profit takes to fully unlock. See lockedProfit(). uint256 public constant LOCK_INTERVAL = 24 hours; /** * @notice Emitted after a successful harvest. * @param user The authorized user who triggered the harvest. * @param strategies The trusted strategies that were harvested. */ event Harvest(address indexed user, Strategy[] strategies); /** * @notice Harvest a set of trusted strategies. * @param strategyList The trusted strategies to harvest. * @dev Will always revert if profit from last harvest has not finished unlocking. */ function harvest(Strategy[] calldata strategyList) external onlyRole(HARVESTER) { // Profit must not be unlocking require(block.timestamp >= lastHarvest + LOCK_INTERVAL, "BV: profit unlocking"); // Get the Vault's current total strategy holdings. uint256 oldTotalStrategyHoldings = totalStrategyHoldings; // Used to store the new total strategy holdings after harvesting. uint256 newTotalStrategyHoldings = oldTotalStrategyHoldings; // Used to store the total profit accrued by the strategies. uint256 totalProfitAccrued; // Will revert if any of the specified strategies are untrusted. for (uint256 i = 0; i < strategyList.length; i = uncheckedInc(i)) { // Get the strategy at the current index. Strategy strategy = strategyList[i]; // Ignore inactive (removed) strategies if (!strategies[strategy].isActive) { continue; } // Get the strategy's previous and current balance. uint232 balanceLastHarvest = strategies[strategy].balance; uint256 balanceThisHarvest = strategy.totalLockedValue(); // Update the strategy's stored balance. strategies[strategy].balance = uint232(balanceThisHarvest); // Increase/decrease newTotalStrategyHoldings based on the profit/loss registered. // We cannot wrap the subtraction in parenthesis as it would underflow if the strategy had a loss. newTotalStrategyHoldings = newTotalStrategyHoldings + balanceThisHarvest - balanceLastHarvest; unchecked { // Update the total profit accrued while counting losses as zero profit. // Cannot overflow as we already increased total holdings without reverting. totalProfitAccrued += balanceThisHarvest > balanceLastHarvest ? balanceThisHarvest - balanceLastHarvest // Profits since last harvest. : 0; // If the strategy registered a net loss we don't have any new profit. } } // Update max unlocked profit based on any remaining locked profit plus new profit. maxLockedProfit = uint128(lockedProfit() + totalProfitAccrued); // Set strategy holdings to our new total. totalStrategyHoldings = newTotalStrategyHoldings; // Assess fees (using old lastHarvest) and update the last harvest timestamp. _assessFees(); lastHarvest = uint128(block.timestamp); emit Harvest(msg.sender, strategyList); } /** * @notice Current locked profit amount. * @dev Profit unlocks uniformly over `LOCK_INTERVAL` seconds after the last harvest */ function lockedProfit() public view virtual returns (uint256) { if (block.timestamp >= lastHarvest + LOCK_INTERVAL) { return 0; } uint256 unlockedProfit = (maxLockedProfit * (block.timestamp - lastHarvest)) / LOCK_INTERVAL; return maxLockedProfit - unlockedProfit; } /*////////////////////////////////////////////////////////////// LIQUIDATION/REBALANCING //////////////////////////////////////////////////////////////*/ /// @notice The total amount of the underlying asset the vault has. function vaultTVL() public view returns (uint256) { return _asset.balanceOf(address(this)) + totalStrategyHoldings; } /** * @notice Emitted when the vault must make a certain amount of assets available * @dev We liquidate during cross chain rebalancing or withdrawals. * @param assetsRequested The amount we wanted to make available for withdrawal. * @param assetsLiquidated The amount we actually liquidated. */ event Liquidation(uint256 assetsRequested, uint256 assetsLiquidated); /** * @notice Withdraw `amount` of underlying asset from strategies. * @dev Always check the return value when using this function, we might not liquidate anything! * @param amount The amount we want to liquidate * @return The amount we actually liquidated */ function _liquidate(uint256 amount) internal returns (uint256) { uint256 amountLiquidated; for (uint256 i = 0; i < MAX_STRATEGIES; i = uncheckedInc(i)) { Strategy strategy = withdrawalQueue[i]; if (address(strategy) == address(0)) { break; } uint256 balance = _asset.balanceOf(address(this)); if (balance >= amount) { break; } uint256 amountNeeded = amount - balance; amountNeeded = Math.min(amountNeeded, strategies[strategy].balance); // Force withdraw of token from strategy uint256 withdrawn = _withdrawFromStrategy(strategy, amountNeeded); amountLiquidated += withdrawn; } emit Liquidation({assetsRequested: amount, assetsLiquidated: amountLiquidated}); return amountLiquidated; } /** * @notice Assess fees. * @dev This is called during harvest() to assess management fees. */ function _assessFees() internal virtual {} /** * @notice Emitted when we do a strategy rebalance, i.e. when we make the strategy tvls match their tvl bps * @param caller The caller */ event Rebalance(address indexed caller); /// @notice Rebalance strategies according to given tvl bps function rebalance() external onlyRole(HARVESTER) { uint256 tvl = vaultTVL(); // Loop through all strategies. Divesting from those whose tvl is too high, // Invest in those whose tvl is too low uint256[MAX_STRATEGIES] memory amountsToInvest; for (uint256 i = 0; i < MAX_STRATEGIES; i = uncheckedInc(i)) { Strategy strategy = withdrawalQueue[i]; if (address(strategy) == address(0)) { break; } uint256 idealStrategyTVL = (tvl * strategies[strategy].tvlBps) / MAX_BPS; uint256 currStrategyTVL = strategy.totalLockedValue(); if (idealStrategyTVL < currStrategyTVL) { _withdrawFromStrategy(strategy, currStrategyTVL - idealStrategyTVL); } if (idealStrategyTVL > currStrategyTVL) { amountsToInvest[i] = idealStrategyTVL - currStrategyTVL; } } // Loop through the strategies to invest in, and invest in them for (uint256 i = 0; i < MAX_STRATEGIES; i = uncheckedInc(i)) { uint256 amountToInvest = amountsToInvest[i]; if (amountToInvest == 0) { continue; } // We aren't guaranteed that the vault has `amountToInvest` since there can be slippage // when divesting from strategies // NOTE: Strategies closer to the start of the queue are more likely to get the exact // amount of money needed amountToInvest = Math.min(amountToInvest, _asset.balanceOf(address(this))); if (amountToInvest == 0) { break; } // Deposit into strategy, making sure to not count this investment as a profit _depositIntoStrategy(withdrawalQueue[i], amountToInvest); } emit Rebalance(msg.sender); } }
//SPDX-License-Identifier: BUSL-1.1 pragma solidity =0.8.16; import {ERC20} from "solmate/src/tokens/ERC20.sol"; import {SafeTransferLib} from "solmate/src/utils/SafeTransferLib.sol"; import {BaseVault} from "./BaseVault.sol"; abstract contract BridgeEscrow { using SafeTransferLib for ERC20; /// @notice The input asset. ERC20 public immutable asset; /// @notice The wormhole router contract. address public immutable wormholeRouter; /// @notice Governance address (shared with vault). address public immutable governance; /** * @notice Emitted whenever we transfer funds from this escrow to the vault * @param assets The amount of assets transferred */ event TransferToVault(uint256 assets); constructor(BaseVault _vault) { wormholeRouter = _vault.wormholeRouter(); asset = ERC20(_vault.asset()); governance = _vault.governance(); } /** * @notice Send assets to vault. * @param assets The amount of assets to send. * @param exitProof Proof needed by Polygon Pos bridge to unlock assets on Ethereum. */ function clearFunds(uint256 assets, bytes calldata exitProof) external { require(msg.sender == wormholeRouter, "BE: Only wormhole router"); _clear(assets, exitProof); } /// @notice Escape hatch for governance in an emergency. function rescueFunds(uint256 amount, bytes calldata exitProof) external { require(msg.sender == governance, "BE: Only Governance"); _clear(amount, exitProof); } function _clear(uint256 assets, bytes calldata exitProof) internal virtual; }
// SPDX-License-Identifier:MIT pragma solidity =0.8.16; import {IWormhole} from "./interfaces/IWormhole.sol"; import {BaseVault} from "./BaseVault.sol"; import {AffineGovernable} from "./AffineGovernable.sol"; abstract contract WormholeRouter is AffineGovernable { /// @notice The vault that sends/receives messages. BaseVault public immutable vault; constructor(BaseVault _vault, IWormhole _wormhole) { vault = _vault; governance = vault.governance(); wormhole = _wormhole; } /*////////////////////////////////////////////////////////////// WORMHOLE CONFIGURATION //////////////////////////////////////////////////////////////*/ /// @notice The address of the core wormhole contract. IWormhole public immutable wormhole; /** * @notice The number of blocks it takes to emit produce the VAA. * See https://book.wormholenetwork.com/wormhole/4_vaa.html * @dev This consistency level is actually being ignored on Polygon as of August 16, 2022. The minimum number of blocks * is actually hardcoded to 512. See https://github.com/certusone/wormhole/blob/9ba75ddb97162839e0cacd91851a9a0ef9b45496/node/cmd/guardiand/node.go#L969-L981 */ uint8 public consistencyLevel = 4; ///@notice Set the number of blocks needed for wormhole guardians to produce VAA function setConsistencyLevel(uint8 _consistencyLevel) external onlyGovernance { consistencyLevel = _consistencyLevel; } /*////////////////////////////////////////////////////////////// WORMHOLE STATE //////////////////////////////////////////////////////////////*/ function otherLayerWormholeId() public view virtual returns (uint16) {} uint256 public nextValidNonce; /*////////////////////////////////////////////////////////////// VALIDATION //////////////////////////////////////////////////////////////*/ function _validateWormholeMessageEmitter(IWormhole.VM memory vm) internal view { require(vm.emitterAddress == bytes32(uint256(uint160(address(this)))), "WR: bad emitter address"); require(vm.emitterChainId == otherLayerWormholeId(), "WR: bad emitter chain"); require(vm.nonce >= nextValidNonce, "WR: old transaction"); } }
//SPDX-License-Identifier: BUSL-1.1 pragma solidity =0.8.16; import {ERC20} from "solmate/src/tokens/ERC20.sol"; import {SafeTransferLib} from "solmate/src/utils/SafeTransferLib.sol"; import {IRootChainManager} from "../interfaces/IRootChainManager.sol"; import {BridgeEscrow} from "../BridgeEscrow.sol"; import {L1Vault} from "./L1Vault.sol"; contract L1BridgeEscrow is BridgeEscrow { using SafeTransferLib for ERC20; /// @notice The L1Vault. L1Vault public immutable vault; /// @notice Polygon Pos Bridge manager. See https://github.com/maticnetwork/pos-portal/blob/41d45f7eff5b298941a2547afa0073a6c36b2b9c/contracts/root/RootChainManager/RootChainManager.sol IRootChainManager public immutable rootChainManager; constructor(L1Vault _vault, IRootChainManager _manager) BridgeEscrow(_vault) { vault = _vault; rootChainManager = _manager; } function _clear(uint256 assets, bytes calldata exitProof) internal override { // Exit tokens, after this the withdrawn tokens from L2 will be reflected in the L1 BridgeEscrow // NOTE: This function can fail if the exitProof provided is fake or has already been processed // In either case, we want to send at least `assets` to the vault since we know that the L2Vault sent `assets` try rootChainManager.exit(exitProof) {} catch {} // Transfer exited tokens to L1 Vault. uint256 balance = asset.balanceOf(address(this)); require(balance >= assets, "BE: Funds not received"); asset.safeTransfer(address(vault), balance); emit TransferToVault(balance); vault.afterReceive(); } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity =0.8.16; import {ERC20} from "solmate/src/tokens/ERC20.sol"; import {SafeTransferLib} from "solmate/src/utils/SafeTransferLib.sol"; import {UUPSUpgradeable} from "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol"; import {PausableUpgradeable} from "@openzeppelin/contracts-upgradeable/security/PausableUpgradeable.sol"; import {Math} from "@openzeppelin/contracts/utils/math/Math.sol"; import {BaseVault} from "../BaseVault.sol"; import {IRootChainManager} from "../interfaces/IRootChainManager.sol"; import {L1BridgeEscrow} from "./L1BridgeEscrow.sol"; import {L1WormholeRouter} from "./L1WormholeRouter.sol"; contract L1Vault is PausableUpgradeable, UUPSUpgradeable, BaseVault { using SafeTransferLib for ERC20; /*////////////////////////////////////////////////////////////// INITIALIZATION/UPGRADING //////////////////////////////////////////////////////////////*/ /// @notice Initialize the vault. function initialize( address _governance, ERC20 _token, address _wormholeRouter, L1BridgeEscrow _bridgeEscrow, IRootChainManager _chainManager, address _predicate ) public initializer { __UUPSUpgradeable_init(); __Pausable_init(); baseInitialize(_governance, _token, _wormholeRouter, _bridgeEscrow); chainManager = _chainManager; predicate = _predicate; } /// @notice See `UUPSUpgradeable`. Only the gov address can do an upgrade. function _authorizeUpgrade(address newImplementation) internal override onlyGovernance {} /*////////////////////////////////////////////////////////////// CROSS-CHAIN REBALANCING //////////////////////////////////////////////////////////////*/ /// @notice True if this vault has received latest transfer from L2, else false. bool public received; /// @notice The contract that manages transfers to L2. We'll call `depositFor` on this. IRootChainManager public chainManager; /** * @notice The address that will actually take `asset` from the vault. * @dev Make sure to call approve the predicate as a spender before calling `depositFor`. * More can be found here: https://github.com/maticnetwork/pos-portal/blob/88dbf0a88fd68fa11f7a3b9d36629930f6b93a05/contracts/root/RootChainManager/RootChainManager.sol#L267 */ address public predicate; /** * @notice Emitted whenever we send our tvl to l2 * @param tvl The current tvl of this vault. */ event SendTVL(uint256 tvl); /// @notice Send this vault's tvl to the L2Vault function sendTVL() external { uint256 tvl = vaultTVL(); // Report TVL to L2. Also possibly unlock L2-L1 bridge (if received is true) L1WormholeRouter(wormholeRouter).reportTVL(tvl, received); // If `received` is true, then an L2-L1 cross-chain transfer has completed. // Sending this tvl might trigger another L2-L1 transfer. // Reset `received` to false so that L2-L1 bridge will remain locked. // See L2Vault.sol for more on how `received` is used. if (received) { received = false; } emit SendTVL(tvl); } /** * @notice Process a request for funds from L2 vault * @param amountRequested The amount requested. */ function processFundRequest(uint256 amountRequested) external { require(msg.sender == address(wormholeRouter), "L1: only router"); _liquidate(amountRequested); uint256 amountToSend = Math.min(_asset.balanceOf(address(this)), amountRequested); _asset.safeApprove(predicate, amountToSend); chainManager.depositFor(address(bridgeEscrow), address(_asset), abi.encodePacked(amountToSend)); // Let L2 know how much money we sent L1WormholeRouter(wormholeRouter).reportFundTransfer(amountToSend); emit TransferToL2({assetsRequested: amountRequested, assetsSent: amountToSend}); } /** * @notice Emitted whenever we send assets to L2. * @param assetsRequested The assets requested by L2. * @param assetsSent The assets we actually sent. */ event TransferToL2(uint256 assetsRequested, uint256 assetsSent); /// @notice Called by the bridgeEscrow after it transfers `asset` into this vault. function afterReceive() external { require(msg.sender == address(bridgeEscrow), "L1: only escrow"); received = true; // Whenever we receive funds from L2, immediately deposit them all into strategies _depositIntoStrategies(_asset.balanceOf(address(this))); } /// @dev The L1Vault's profit does not need to unlock over time, because users to do not transact with it function lockedProfit() public pure override returns (uint256) { return 0; } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity =0.8.16; interface IRootChainManager { function depositFor(address user, address rootToken, bytes calldata depositData) external; function exit(bytes memory _data) external; }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity =0.8.16; interface IWormhole { struct Signature { bytes32 r; bytes32 s; uint8 v; uint8 guardianIndex; } struct VM { uint8 version; uint32 timestamp; uint32 nonce; uint16 emitterChainId; bytes32 emitterAddress; uint64 sequence; uint8 consistencyLevel; bytes payload; uint32 guardianSetIndex; Signature[] signatures; bytes32 hash; } function publishMessage(uint32 nonce, bytes memory payload, uint8 consistencyLevel) external payable returns (uint64 sequence); function parseAndVerifyVM(bytes calldata encodedVM) external view returns (VM memory vm, bool valid, string memory reason); function nextSequence(address emitter) external view returns (uint64); }
// SPDX-License-Identifier: MIT pragma solidity =0.8.16; library Constants { // Message types // Messages received by L1 bytes32 constant L2_FUND_TRANSFER_REPORT = keccak256("L2_FUND_TRANSFER_REPORT"); bytes32 constant L2_FUND_REQUEST = keccak256("L2_FUND_REQUEST"); // Messages received by L2 bytes32 constant L1_TVL = keccak256("L1_TVL"); bytes32 constant L1_FUND_TRANSFER_REPORT = keccak256("L1_FUND_TRANSFER_REPORT"); }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity =0.8.16; /* solhint-disable func-visibility */ function uncheckedInc(uint256 i) pure returns (uint256) { unchecked { return i + 1; } }
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Contract Security Audit
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[{"inputs":[{"internalType":"contract L1Vault","name":"_vault","type":"address"},{"internalType":"contract IWormhole","name":"_wormhole","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"consistencyLevel","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"governance","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"nextValidNonce","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"otherLayerWormholeId","outputs":[{"internalType":"uint16","name":"","type":"uint16"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"bytes","name":"message","type":"bytes"}],"name":"receiveFundRequest","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes","name":"message","type":"bytes"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"receiveFunds","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"reportFundTransfer","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tvl","type":"uint256"},{"internalType":"bool","name":"received","type":"bool"}],"name":"reportTVL","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint8","name":"_consistencyLevel","type":"uint8"}],"name":"setConsistencyLevel","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"vault","outputs":[{"internalType":"contract BaseVault","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"wormhole","outputs":[{"internalType":"contract IWormhole","name":"","type":"address"}],"stateMutability":"view","type":"function"}]
Contract Creation Code
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Deployed Bytecode
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
00000000000000000000000084ef1f1a7f14a237c4b1da8d13548123879fc3a900000000000000000000000098f3c9e6e3face36baad05fe09d375ef1464288b
-----Decoded View---------------
Arg [0] : _vault (address): 0x84eF1F1A7f14A237c4b1DA8d13548123879FC3A9
Arg [1] : _wormhole (address): 0x98f3c9e6E3fAce36bAAd05FE09d375Ef1464288B
-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 00000000000000000000000084ef1f1a7f14a237c4b1da8d13548123879fc3a9
Arg [1] : 00000000000000000000000098f3c9e6e3face36baad05fe09d375ef1464288b
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Multichain Portfolio | 27 Chains
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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.