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Similar Match Source Code This contract matches the deployed Bytecode of the Source Code for Contract 0x6a221161...3737B4345 The constructor portion of the code might be different and could alter the actual behaviour of the contract
Contract Name:
CurveStableLPPriceFeed
Compiler Version
v0.8.17+commit.8df45f5f
Optimization Enabled:
Yes with 1000 runs
Other Settings:
london EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: BUSL-1.1 // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Foundation, 2023. pragma solidity ^0.8.17; import {LPPriceFeed} from "../LPPriceFeed.sol"; import {PriceFeedParams} from "../PriceFeedParams.sol"; import {ICurvePool} from "../../interfaces/curve/ICurvePool.sol"; import {PriceFeedType} from "@gearbox-protocol/sdk-gov/contracts/PriceFeedType.sol"; import {WAD} from "@gearbox-protocol/core-v2/contracts/libraries/Constants.sol"; /// @title Curve stable LP price feed /// @dev For stableswap pools, aggregate is simply the minimum of underlying tokens prices /// @dev Older pools may be decoupled from their LP token, so constructor accepts both token and pool contract CurveStableLPPriceFeed is LPPriceFeed { uint256 public constant override version = 3_00; PriceFeedType public immutable override priceFeedType; uint16 public immutable nCoins; address public immutable priceFeed0; uint32 public immutable stalenessPeriod0; bool public immutable skipCheck0; address public immutable priceFeed1; uint32 public immutable stalenessPeriod1; bool public immutable skipCheck1; address public immutable priceFeed2; uint32 public immutable stalenessPeriod2; bool public immutable skipCheck2; address public immutable priceFeed3; uint32 public immutable stalenessPeriod3; bool public immutable skipCheck3; constructor( address addressProvider, uint256 lowerBound, address _token, address _pool, PriceFeedParams[4] memory priceFeeds ) LPPriceFeed(addressProvider, _token, _pool) // U:[CRV-S-1] nonZeroAddress(priceFeeds[0].priceFeed) // U:[CRV-S-2] nonZeroAddress(priceFeeds[1].priceFeed) // U:[CRV-S-2] { priceFeed0 = priceFeeds[0].priceFeed; priceFeed1 = priceFeeds[1].priceFeed; priceFeed2 = priceFeeds[2].priceFeed; priceFeed3 = priceFeeds[3].priceFeed; stalenessPeriod0 = priceFeeds[0].stalenessPeriod; stalenessPeriod1 = priceFeeds[1].stalenessPeriod; stalenessPeriod2 = priceFeeds[2].stalenessPeriod; stalenessPeriod3 = priceFeeds[3].stalenessPeriod; nCoins = priceFeed2 == address(0) ? 2 : (priceFeed3 == address(0) ? 3 : 4); // U:[CRV-S-2] skipCheck0 = _validatePriceFeed(priceFeed0, stalenessPeriod0); skipCheck1 = _validatePriceFeed(priceFeed1, stalenessPeriod1); skipCheck2 = nCoins > 2 ? _validatePriceFeed(priceFeed2, stalenessPeriod2) : false; skipCheck3 = nCoins > 3 ? _validatePriceFeed(priceFeed3, stalenessPeriod3) : false; priceFeedType = nCoins == 2 ? PriceFeedType.CURVE_2LP_ORACLE : (nCoins == 3 ? PriceFeedType.CURVE_3LP_ORACLE : PriceFeedType.CURVE_4LP_ORACLE); _setLimiter(lowerBound); // U:[CRV-S-1] } function getAggregatePrice() public view override returns (int256 answer) { answer = _getValidatedPrice(priceFeed0, stalenessPeriod0, skipCheck0); // U:[CRV-S-2] int256 answer2 = _getValidatedPrice(priceFeed1, stalenessPeriod1, skipCheck1); if (answer2 < answer) answer = answer2; // U:[CRV-S-2] if (nCoins > 2) { answer2 = _getValidatedPrice(priceFeed2, stalenessPeriod2, skipCheck2); if (answer2 < answer) answer = answer2; // U:[CRV-S-2] if (nCoins > 3) { answer2 = _getValidatedPrice(priceFeed3, stalenessPeriod3, skipCheck3); if (answer2 < answer) answer = answer2; // U:[CRV-S-2] } } } function getLPExchangeRate() public view override returns (uint256) { return uint256(ICurvePool(lpContract).get_virtual_price()); // U:[CRV-S-1] } function getScale() public pure override returns (uint256) { return WAD; // U:[CRV-S-1] } }
// SPDX-License-Identifier: BUSL-1.1 // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Foundation, 2023. pragma solidity ^0.8.17; import {ILPPriceFeed} from "../interfaces/ILPPriceFeed.sol"; import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol"; import {PERCENTAGE_FACTOR} from "@gearbox-protocol/core-v2/contracts/libraries/Constants.sol"; import {ACLNonReentrantTrait} from "@gearbox-protocol/core-v3/contracts/traits/ACLNonReentrantTrait.sol"; import {PriceFeedValidationTrait} from "@gearbox-protocol/core-v3/contracts/traits/PriceFeedValidationTrait.sol"; import {IPriceOracleV3} from "@gearbox-protocol/core-v3/contracts/interfaces/IPriceOracleV3.sol"; import {IUpdatablePriceFeed} from "@gearbox-protocol/core-v2/contracts/interfaces/IPriceFeed.sol"; import { IAddressProviderV3, AP_PRICE_ORACLE } from "@gearbox-protocol/core-v3/contracts/interfaces/IAddressProviderV3.sol"; /// @dev Window size in bps, used to compute upper bound given lower bound uint256 constant WINDOW_SIZE = 200; /// @dev Buffer size in bps, used to compute new lower bound given current exchange rate uint256 constant BUFFER_SIZE = 100; /// @dev Minimum interval between two permissionless bounds updates uint256 constant UPDATE_BOUNDS_COOLDOWN = 1 days; /// @title LP price feed /// @notice Abstract contract for LP token price feeds. /// It is assumed that the price of an LP token is the product of its exchange rate and some aggregate function /// of underlying tokens prices. This contract simplifies creation of such price feeds and provides standard /// validation of the LP token exchange rate that protects against price manipulation. abstract contract LPPriceFeed is ILPPriceFeed, ACLNonReentrantTrait, PriceFeedValidationTrait { /// @notice Answer precision (always 8 decimals for USD price feeds) uint8 public constant override decimals = 8; // U:[LPPF-2] /// @notice Indicates that price oracle can skip checks for this price feed's answers bool public constant override skipPriceCheck = true; // U:[LPPF-2] /// @notice Price oracle contract address public immutable override priceOracle; /// @notice LP token for which the prices are computed address public immutable override lpToken; /// @notice LP contract (can be different from LP token) address public immutable override lpContract; /// @notice Lower bound for the LP token exchange rate uint256 public override lowerBound; /// @notice Whether permissionless bounds update is allowed bool public override updateBoundsAllowed; /// @notice Timestamp of the last bounds update uint40 public override lastBoundsUpdate; /// @notice Constructor /// @param _addressProvider Address provider contract address /// @param _lpToken LP token for which the prices are computed /// @param _lpContract LP contract (can be different from LP token) /// @dev Derived price feeds must call `_setLimiter` in their constructor after /// initializing all state variables needed for exchange rate calculation constructor(address _addressProvider, address _lpToken, address _lpContract) ACLNonReentrantTrait(_addressProvider) // U:[LPPF-1] nonZeroAddress(_lpToken) // U:[LPPF-1] nonZeroAddress(_lpContract) // U:[LPPF-1] { priceOracle = IAddressProviderV3(_addressProvider).getAddressOrRevert(AP_PRICE_ORACLE, 3_00); // U:[LPPF-1] lpToken = _lpToken; // U:[LPPF-1] lpContract = _lpContract; // U:[LPPF-1] } /// @notice Price feed description function description() external view override returns (string memory) { return string(abi.encodePacked(ERC20(lpToken).symbol(), " / USD price feed")); // U:[LPPF-2] } /// @notice Returns USD price of the LP token with 8 decimals function latestRoundData() external view override returns (uint80, int256 answer, uint256, uint256, uint80) { uint256 exchangeRate = getLPExchangeRate(); uint256 lb = lowerBound; if (exchangeRate < lb) revert ExchangeRateOutOfBoundsException(); // U:[LPPF-3] uint256 ub = _calcUpperBound(lb); if (exchangeRate > ub) exchangeRate = ub; // U:[LPPF-3] answer = int256((exchangeRate * uint256(getAggregatePrice())) / getScale()); // U:[LPPF-3] return (0, answer, 0, 0, 0); } /// @notice Upper bound for the LP token exchange rate function upperBound() external view returns (uint256) { return _calcUpperBound(lowerBound); // U:[LPPF-4] } /// @notice Returns aggregate price of underlying tokens with 8 decimals /// @dev Must be implemented by derived price feeds function getAggregatePrice() public view virtual override returns (int256 answer); /// @notice Returns LP token exchange rate /// @dev Must be implemented by derived price feeds function getLPExchangeRate() public view virtual override returns (uint256 exchangeRate); /// @notice Returns LP token exchange rate scale /// @dev Must be implemented by derived price feeds function getScale() public view virtual override returns (uint256 scale); // ------------- // // CONFIGURATION // // ------------- // /// @notice Allows permissionless bounds update function allowBoundsUpdate() external override configuratorOnly // U:[LPPF-5] { if (updateBoundsAllowed) return; updateBoundsAllowed = true; // U:[LPPF-5] emit SetUpdateBoundsAllowed(true); // U:[LPPF-5] } /// @notice Forbids permissionless bounds update function forbidBoundsUpdate() external override controllerOnly // U:[LPPF-5] { if (!updateBoundsAllowed) return; updateBoundsAllowed = false; // U:[LPPF-5] emit SetUpdateBoundsAllowed(false); // U:[LPPF-5] } /// @notice Sets new lower and upper bounds for the LP token exchange rate /// @param newLowerBound New lower bound value function setLimiter(uint256 newLowerBound) external override controllerOnly // U:[LPPF-6] { _setLimiter(newLowerBound); // U:[LPPF-6] } /// @notice Permissionlessly updates LP token's exchange rate bounds using answer from the reserve price feed. /// Lower bound is set to the induced reserve exchange rate (with small buffer for downside movement). /// @param updateData Data to update the reserve price feed with before querying its answer if it is updatable function updateBounds(bytes calldata updateData) external override { if (!updateBoundsAllowed) revert UpdateBoundsNotAllowedException(); // U:[LPPF-7] if (block.timestamp < lastBoundsUpdate + UPDATE_BOUNDS_COOLDOWN) revert UpdateBoundsBeforeCooldownException(); // U:[LPPF-7] lastBoundsUpdate = uint40(block.timestamp); // U:[LPPF-7] address reserveFeed = IPriceOracleV3(priceOracle).priceFeedsRaw({token: lpToken, reserve: true}); // U:[LPPF-7] if (reserveFeed == address(this)) revert ReserveFeedMustNotBeSelfException(); // U:[LPPF-7] try IUpdatablePriceFeed(reserveFeed).updatable() returns (bool updatable) { if (updatable) IUpdatablePriceFeed(reserveFeed).updatePrice(updateData); // U:[LPPF-7] } catch {} uint256 reserveAnswer = IPriceOracleV3(priceOracle).getPriceRaw({token: lpToken, reserve: true}); // U:[LPPF-7] uint256 reserveExchangeRate = uint256(reserveAnswer * getScale() / uint256(getAggregatePrice())); // U:[LPPF-7] _ensureValueInBounds(reserveExchangeRate, lowerBound); // U:[LPPF-7] _setLimiter(_calcLowerBound(reserveExchangeRate)); // U:[LPPF-7] } /// @dev `setLimiter` implementation: sets new bounds, ensures that current value is within them, emits event function _setLimiter(uint256 lower) internal { if (lower == 0) revert LowerBoundCantBeZeroException(); // U:[LPPF-6] uint256 upper = _ensureValueInBounds(getLPExchangeRate(), lower); // U:[LPPF-6] lowerBound = lower; // U:[LPPF-6] emit SetBounds(lower, upper); // U:[LPPF-6] } /// @dev Computes upper bound as `_lowerBound * (1 + WINDOW_SIZE)` function _calcUpperBound(uint256 _lowerBound) internal pure returns (uint256) { return _lowerBound * (PERCENTAGE_FACTOR + WINDOW_SIZE) / PERCENTAGE_FACTOR; // U:[LPPF-4] } /// @dev Computes lower bound as `exchangeRate * (1 - BUFFER_SIZE)` function _calcLowerBound(uint256 exchangeRate) internal pure returns (uint256) { return exchangeRate * (PERCENTAGE_FACTOR - BUFFER_SIZE) / PERCENTAGE_FACTOR; // U:[LPPF-6] } /// @dev Ensures that value is in bounds, returns upper bound computed from lower bound function _ensureValueInBounds(uint256 value, uint256 lower) internal pure returns (uint256 upper) { if (value < lower) revert ExchangeRateOutOfBoundsException(); upper = _calcUpperBound(lower); if (value > upper) revert ExchangeRateOutOfBoundsException(); } }
// SPDX-License-Identifier: BUSL-1.1 // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Foundation, 2023. pragma solidity ^0.8.17; struct PriceFeedParams { address priceFeed; uint32 stalenessPeriod; }
// SPDX-License-Identifier: MIT // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Foundation, 2023. pragma solidity ^0.8.17; interface ICurvePool { function get_virtual_price() external view returns (uint256); function price_oracle() external view returns (uint256); }
// SPDX-License-Identifier: UNLICENSED // Gearbox. Generalized leverage protocol that allows to take leverage and then use it across other DeFi protocols and platforms in a composable way. // (c) Gearbox Foundation, 2023 pragma solidity ^0.8.17; enum PriceFeedType { CHAINLINK_ORACLE, YEARN_ORACLE, CURVE_2LP_ORACLE, CURVE_3LP_ORACLE, CURVE_4LP_ORACLE, ZERO_ORACLE, WSTETH_ORACLE, BOUNDED_ORACLE, COMPOSITE_ORACLE, WRAPPED_AAVE_V2_ORACLE, COMPOUND_V2_ORACLE, BALANCER_STABLE_LP_ORACLE, BALANCER_WEIGHTED_LP_ORACLE, CURVE_CRYPTO_ORACLE, THE_SAME_AS, REDSTONE_ORACLE, ERC4626_VAULT_ORACLE, NETWORK_DEPENDENT, CURVE_USD_ORACLE }
// SPDX-License-Identifier: MIT // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Holdings, 2022 pragma solidity ^0.8.10; // Denominations uint256 constant WAD = 1e18; uint256 constant RAY = 1e27; uint16 constant PERCENTAGE_FACTOR = 1e4; //percentage plus two decimals // 25% of type(uint256).max uint256 constant ALLOWANCE_THRESHOLD = type(uint96).max >> 3; // FEE = 50% uint16 constant DEFAULT_FEE_INTEREST = 50_00; // 50% // LIQUIDATION_FEE 1.5% uint16 constant DEFAULT_FEE_LIQUIDATION = 1_50; // 1.5% // LIQUIDATION PREMIUM 4% uint16 constant DEFAULT_LIQUIDATION_PREMIUM = 4_00; // 4% // LIQUIDATION_FEE_EXPIRED 2% uint16 constant DEFAULT_FEE_LIQUIDATION_EXPIRED = 1_00; // 2% // LIQUIDATION PREMIUM EXPIRED 2% uint16 constant DEFAULT_LIQUIDATION_PREMIUM_EXPIRED = 2_00; // 2% // DEFAULT PROPORTION OF MAX BORROWED PER BLOCK TO MAX BORROWED PER ACCOUNT uint16 constant DEFAULT_LIMIT_PER_BLOCK_MULTIPLIER = 2; // Seconds in a year uint256 constant SECONDS_PER_YEAR = 365 days; uint256 constant SECONDS_PER_ONE_AND_HALF_YEAR = (SECONDS_PER_YEAR * 3) / 2; // OPERATIONS // Leverage decimals - 100 is equal to 2x leverage (100% * collateral amount + 100% * borrowed amount) uint8 constant LEVERAGE_DECIMALS = 100; // Maximum withdraw fee for pool in PERCENTAGE_FACTOR format uint8 constant MAX_WITHDRAW_FEE = 100; uint256 constant EXACT_INPUT = 1; uint256 constant EXACT_OUTPUT = 2; address constant UNIVERSAL_CONTRACT = 0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC;
// SPDX-License-Identifier: MIT // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Foundation, 2023. pragma solidity ^0.8.17; import {IPriceFeed} from "@gearbox-protocol/core-v2/contracts/interfaces/IPriceFeed.sol"; interface ILPPriceFeedEvents { /// @notice Emitted when new LP token exchange rate bounds are set event SetBounds(uint256 lowerBound, uint256 upperBound); /// @notice Emitted when permissionless bounds update is allowed or forbidden event SetUpdateBoundsAllowed(bool allowed); } interface ILPPriceFeedExceptions { /// @notice Thrown when trying to set exchange rate lower bound to zero error LowerBoundCantBeZeroException(); /// @notice Thrown when exchange rate falls below lower bound during price calculation /// or new boudns don't contain exchange rate during bounds update error ExchangeRateOutOfBoundsException(); /// @notice Thrown when trying to call `updateBounds` while it's not allowed error UpdateBoundsNotAllowedException(); /// @notice Thrown when trying to call `updateBounds` before cooldown since the last update has passed error UpdateBoundsBeforeCooldownException(); /// @notice Thrown when price oracle's reserve price feed is the LP price feed itself error ReserveFeedMustNotBeSelfException(); } /// @title LP price feed interface interface ILPPriceFeed is IPriceFeed, ILPPriceFeedEvents, ILPPriceFeedExceptions { function priceOracle() external view returns (address); function lpToken() external view returns (address); function lpContract() external view returns (address); function lowerBound() external view returns (uint256); function upperBound() external view returns (uint256); function updateBoundsAllowed() external view returns (bool); function lastBoundsUpdate() external view returns (uint40); function getAggregatePrice() external view returns (int256 answer); function getLPExchangeRate() external view returns (uint256 exchangeRate); function getScale() external view returns (uint256 scale); // ------------- // // CONFIGURATION // // ------------- // function allowBoundsUpdate() external; function forbidBoundsUpdate() external; function setLimiter(uint256 newLowerBound) external; function updateBounds(bytes calldata updateData) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/ERC20.sol) pragma solidity ^0.8.0; import "./IERC20.sol"; import "./extensions/IERC20Metadata.sol"; import "../../utils/Context.sol"; /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * The default value of {decimals} is 18. To change this, you should override * this function so it returns a different value. * * We have followed general OpenZeppelin Contracts guidelines: functions revert * instead returning `false` on failure. This behavior is nonetheless * conventional and does not conflict with the expectations of ERC20 * applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract ERC20 is Context, IERC20, IERC20Metadata { mapping(address => uint256) private _balances; mapping(address => mapping(address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * All two of these values are immutable: they can only be set once during * construction. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev Returns the name of the token. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5.05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the default value returned by this function, unless * it's overridden. * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual override returns (uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `to` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address to, uint256 amount) public virtual override returns (bool) { address owner = _msgSender(); _transfer(owner, to, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on * `transferFrom`. This is semantically equivalent to an infinite approval. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { address owner = _msgSender(); _approve(owner, spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * NOTE: Does not update the allowance if the current allowance * is the maximum `uint256`. * * Requirements: * * - `from` and `to` cannot be the zero address. * - `from` must have a balance of at least `amount`. * - the caller must have allowance for ``from``'s tokens of at least * `amount`. */ function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) { address spender = _msgSender(); _spendAllowance(from, spender, amount); _transfer(from, to, amount); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { address owner = _msgSender(); _approve(owner, spender, allowance(owner, spender) + addedValue); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { address owner = _msgSender(); uint256 currentAllowance = allowance(owner, spender); require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); unchecked { _approve(owner, spender, currentAllowance - subtractedValue); } return true; } /** * @dev Moves `amount` of tokens from `from` to `to`. * * This internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `from` must have a balance of at least `amount`. */ function _transfer(address from, address to, uint256 amount) internal virtual { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(from, to, amount); uint256 fromBalance = _balances[from]; require(fromBalance >= amount, "ERC20: transfer amount exceeds balance"); unchecked { _balances[from] = fromBalance - amount; // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by // decrementing then incrementing. _balances[to] += amount; } emit Transfer(from, to, amount); _afterTokenTransfer(from, to, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; unchecked { // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above. _balances[account] += amount; } emit Transfer(address(0), account, amount); _afterTokenTransfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); unchecked { _balances[account] = accountBalance - amount; // Overflow not possible: amount <= accountBalance <= totalSupply. _totalSupply -= amount; } emit Transfer(account, address(0), amount); _afterTokenTransfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Updates `owner` s allowance for `spender` based on spent `amount`. * * Does not update the allowance amount in case of infinite allowance. * Revert if not enough allowance is available. * * Might emit an {Approval} event. */ function _spendAllowance(address owner, address spender, uint256 amount) internal virtual { uint256 currentAllowance = allowance(owner, spender); if (currentAllowance != type(uint256).max) { require(currentAllowance >= amount, "ERC20: insufficient allowance"); unchecked { _approve(owner, spender, currentAllowance - amount); } } } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * has been transferred to `to`. * - when `from` is zero, `amount` tokens have been minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens have been burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {} }
// SPDX-License-Identifier: BUSL-1.1 // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Foundation, 2023. pragma solidity ^0.8.17; import {Pausable} from "@openzeppelin/contracts/security/Pausable.sol"; import {IACL} from "@gearbox-protocol/core-v2/contracts/interfaces/IACL.sol"; import { CallerNotControllerException, CallerNotPausableAdminException, CallerNotUnpausableAdminException } from "../interfaces/IExceptions.sol"; import {ACLTrait} from "./ACLTrait.sol"; import {ReentrancyGuardTrait} from "./ReentrancyGuardTrait.sol"; /// @title ACL non-reentrant trait /// @notice Extended version of `ACLTrait` that implements pausable functionality, /// reentrancy protection and external controller role abstract contract ACLNonReentrantTrait is ACLTrait, Pausable, ReentrancyGuardTrait { /// @notice Emitted when new external controller is set event NewController(address indexed newController); /// @notice External controller address address public controller; /// @dev Ensures that function caller is external controller or configurator modifier controllerOnly() { _ensureCallerIsControllerOrConfigurator(); _; } /// @dev Reverts if the caller is not controller or configurator /// @dev Used to cut contract size on modifiers function _ensureCallerIsControllerOrConfigurator() internal view { if (msg.sender != controller && !_isConfigurator({account: msg.sender})) { revert CallerNotControllerException(); } } /// @dev Ensures that function caller has pausable admin role modifier pausableAdminsOnly() { _ensureCallerIsPausableAdmin(); _; } /// @dev Reverts if the caller is not pausable admin /// @dev Used to cut contract size on modifiers function _ensureCallerIsPausableAdmin() internal view { if (!_isPausableAdmin({account: msg.sender})) { revert CallerNotPausableAdminException(); } } /// @dev Ensures that function caller has unpausable admin role modifier unpausableAdminsOnly() { _ensureCallerIsUnpausableAdmin(); _; } /// @dev Reverts if the caller is not unpausable admin /// @dev Used to cut contract size on modifiers function _ensureCallerIsUnpausableAdmin() internal view { if (!_isUnpausableAdmin({account: msg.sender})) { revert CallerNotUnpausableAdminException(); } } /// @notice Constructor /// @param addressProvider Address provider contract address constructor(address addressProvider) ACLTrait(addressProvider) { controller = IACL(acl).owner(); } /// @notice Pauses contract, can only be called by an account with pausable admin role function pause() external virtual pausableAdminsOnly { _pause(); } /// @notice Unpauses contract, can only be called by an account with unpausable admin role function unpause() external virtual unpausableAdminsOnly { _unpause(); } /// @notice Sets new external controller, can only be called by configurator function setController(address newController) external configuratorOnly { if (controller == newController) return; controller = newController; emit NewController(newController); } /// @dev Checks whether given account has pausable admin role function _isPausableAdmin(address account) internal view returns (bool) { return IACL(acl).isPausableAdmin(account); } /// @dev Checks whether given account has unpausable admin role function _isUnpausableAdmin(address account) internal view returns (bool) { return IACL(acl).isUnpausableAdmin(account); } }
// SPDX-License-Identifier: BUSL-1.1 // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Foundation, 2023. pragma solidity ^0.8.17; import {Address} from "@openzeppelin/contracts/utils/Address.sol"; import { AddressIsNotContractException, IncorrectParameterException, IncorrectPriceException, IncorrectPriceFeedException, PriceFeedDoesNotExistException, StalePriceException } from "../interfaces/IExceptions.sol"; import {IPriceFeed, IUpdatablePriceFeed} from "@gearbox-protocol/core-v2/contracts/interfaces/IPriceFeed.sol"; /// @title Price feed validation trait abstract contract PriceFeedValidationTrait { using Address for address; /// @dev Ensures that price is positive and not stale function _checkAnswer(int256 price, uint256 updatedAt, uint32 stalenessPeriod) internal view { if (price <= 0) revert IncorrectPriceException(); if (block.timestamp >= updatedAt + stalenessPeriod) revert StalePriceException(); } /// @dev Valites that `priceFeed` is a contract that adheres to Chainlink interface and passes sanity checks /// @dev Some price feeds return stale prices unless updated right before querying their answer, which causes /// issues during deployment and configuration, so for such price feeds staleness check is skipped, and /// special care must be taken to ensure all parameters are in tune. function _validatePriceFeed(address priceFeed, uint32 stalenessPeriod) internal view returns (bool skipCheck) { if (!priceFeed.isContract()) revert AddressIsNotContractException(priceFeed); // U:[PO-5] try IPriceFeed(priceFeed).decimals() returns (uint8 _decimals) { if (_decimals != 8) revert IncorrectPriceFeedException(); // U:[PO-5] } catch { revert IncorrectPriceFeedException(); // U:[PO-5] } try IPriceFeed(priceFeed).skipPriceCheck() returns (bool _skipCheck) { skipCheck = _skipCheck; // U:[PO-5] } catch {} try IPriceFeed(priceFeed).latestRoundData() returns (uint80, int256 answer, uint256, uint256 updatedAt, uint80) { if (skipCheck) { if (stalenessPeriod != 0) revert IncorrectParameterException(); // U:[PO-5] } else { if (stalenessPeriod == 0) revert IncorrectParameterException(); // U:[PO-5] bool updatable; try IUpdatablePriceFeed(priceFeed).updatable() returns (bool _updatable) { updatable = _updatable; } catch {} if (!updatable) _checkAnswer(answer, updatedAt, stalenessPeriod); // U:[PO-5] } } catch { revert IncorrectPriceFeedException(); // U:[PO-5] } } /// @dev Returns answer from a price feed with optional sanity and staleness checks function _getValidatedPrice(address priceFeed, uint32 stalenessPeriod, bool skipCheck) internal view returns (int256 answer) { uint256 updatedAt; (, answer,, updatedAt,) = IPriceFeed(priceFeed).latestRoundData(); // U:[PO-1] if (!skipCheck) _checkAnswer(answer, updatedAt, stalenessPeriod); // U:[PO-1] } }
// SPDX-License-Identifier: MIT // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Foundation, 2023. pragma solidity ^0.8.17; import {IPriceOracleBase} from "@gearbox-protocol/core-v2/contracts/interfaces/IPriceOracleBase.sol"; struct PriceFeedParams { address priceFeed; uint32 stalenessPeriod; bool skipCheck; uint8 decimals; bool useReserve; bool trusted; } interface IPriceOracleV3Events { /// @notice Emitted when new price feed is set for token event SetPriceFeed( address indexed token, address indexed priceFeed, uint32 stalenessPeriod, bool skipCheck, bool trusted ); /// @notice Emitted when new reserve price feed is set for token event SetReservePriceFeed(address indexed token, address indexed priceFeed, uint32 stalenessPeriod, bool skipCheck); /// @notice Emitted when new reserve price feed status is set for a token event SetReservePriceFeedStatus(address indexed token, bool active); } /// @title Price oracle V3 interface interface IPriceOracleV3 is IPriceOracleBase, IPriceOracleV3Events { function getPriceSafe(address token) external view returns (uint256); function getPriceRaw(address token, bool reserve) external view returns (uint256); function priceFeedsRaw(address token, bool reserve) external view returns (address); function priceFeedParams(address token) external view returns (address priceFeed, uint32 stalenessPeriod, bool skipCheck, uint8 decimals, bool trusted); function safeConvertToUSD(uint256 amount, address token) external view returns (uint256); // ------------- // // CONFIGURATION // // ------------- // function setPriceFeed(address token, address priceFeed, uint32 stalenessPeriod, bool trusted) external; function setReservePriceFeed(address token, address priceFeed, uint32 stalenessPeriod) external; function setReservePriceFeedStatus(address token, bool active) external; }
// SPDX-License-Identifier: MIT // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Foundation, 2023. pragma solidity ^0.8.0; import { PriceFeedType } from "@gearbox-protocol/sdk-gov/contracts/PriceFeedType.sol"; /// @title Price feed interface interface IPriceFeed { function priceFeedType() external view returns (PriceFeedType); function version() external view returns (uint256); function decimals() external view returns (uint8); function description() external view returns (string memory); function skipPriceCheck() external view returns (bool); function latestRoundData() external view returns (uint80, int256 answer, uint256, uint256 updatedAt, uint80); } /// @title Updatable price feed interface interface IUpdatablePriceFeed is IPriceFeed { function updatable() external view returns (bool); function updatePrice(bytes calldata data) external; }
// SPDX-License-Identifier: MIT // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Foundation, 2023. pragma solidity ^0.8.17; import {IVersion} from "@gearbox-protocol/core-v2/contracts/interfaces/IVersion.sol"; uint256 constant NO_VERSION_CONTROL = 0; bytes32 constant AP_CONTRACTS_REGISTER = "CONTRACTS_REGISTER"; bytes32 constant AP_ACL = "ACL"; bytes32 constant AP_PRICE_ORACLE = "PRICE_ORACLE"; bytes32 constant AP_ACCOUNT_FACTORY = "ACCOUNT_FACTORY"; bytes32 constant AP_DATA_COMPRESSOR = "DATA_COMPRESSOR"; bytes32 constant AP_TREASURY = "TREASURY"; bytes32 constant AP_GEAR_TOKEN = "GEAR_TOKEN"; bytes32 constant AP_WETH_TOKEN = "WETH_TOKEN"; bytes32 constant AP_WETH_GATEWAY = "WETH_GATEWAY"; bytes32 constant AP_ROUTER = "ROUTER"; bytes32 constant AP_BOT_LIST = "BOT_LIST"; bytes32 constant AP_GEAR_STAKING = "GEAR_STAKING"; bytes32 constant AP_ZAPPER_REGISTER = "ZAPPER_REGISTER"; interface IAddressProviderV3Events { /// @notice Emitted when an address is set for a contract key event SetAddress(bytes32 indexed key, address indexed value, uint256 indexed version); } /// @title Address provider V3 interface interface IAddressProviderV3 is IAddressProviderV3Events, IVersion { function addresses(bytes32 key, uint256 _version) external view returns (address); function getAddressOrRevert(bytes32 key, uint256 _version) external view returns (address result); function setAddress(bytes32 key, address value, bool saveVersion) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `from` to `to` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address from, address to, uint256 amount) external returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol) pragma solidity ^0.8.0; import "../IERC20.sol"; /** * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ */ interface IERC20Metadata is IERC20 { /** * @dev Returns the name of the token. */ function name() external view returns (string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol) pragma solidity ^0.8.0; import "../utils/Context.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 Pausable is Context { /** * @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. */ constructor() { _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()); } }
// SPDX-License-Identifier: MIT // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Holdings, 2022 pragma solidity ^0.8.10; import { IVersion } from "./IVersion.sol"; interface IACLExceptions { /// @dev Thrown when attempting to delete an address from a set that is not a pausable admin error AddressNotPausableAdminException(address addr); /// @dev Thrown when attempting to delete an address from a set that is not a unpausable admin error AddressNotUnpausableAdminException(address addr); } interface IACLEvents { /// @dev Emits when a new admin is added that can pause contracts event PausableAdminAdded(address indexed newAdmin); /// @dev Emits when a Pausable admin is removed event PausableAdminRemoved(address indexed admin); /// @dev Emits when a new admin is added that can unpause contracts event UnpausableAdminAdded(address indexed newAdmin); /// @dev Emits when an Unpausable admin is removed event UnpausableAdminRemoved(address indexed admin); } /// @title ACL interface interface IACL is IACLEvents, IACLExceptions, IVersion { /// @dev Returns true if the address is a pausable admin and false if not /// @param addr Address to check function isPausableAdmin(address addr) external view returns (bool); /// @dev Returns true if the address is unpausable admin and false if not /// @param addr Address to check function isUnpausableAdmin(address addr) external view returns (bool); /// @dev Returns true if an address has configurator rights /// @param account Address to check function isConfigurator(address account) external view returns (bool); /// @dev Returns address of configurator function owner() external view returns (address); }
// SPDX-License-Identifier: MIT // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Foundation, 2023. pragma solidity ^0.8.17; // ------- // // GENERAL // // ------- // /// @notice Thrown on attempting to set an important address to zero address error ZeroAddressException(); /// @notice Thrown when attempting to pass a zero amount to a funding-related operation error AmountCantBeZeroException(); /// @notice Thrown on incorrect input parameter error IncorrectParameterException(); /// @notice Thrown when balance is insufficient to perform an operation error InsufficientBalanceException(); /// @notice Thrown if parameter is out of range error ValueOutOfRangeException(); /// @notice Thrown when trying to send ETH to a contract that is not allowed to receive ETH directly error ReceiveIsNotAllowedException(); /// @notice Thrown on attempting to set an EOA as an important contract in the system error AddressIsNotContractException(address); /// @notice Thrown on attempting to receive a token that is not a collateral token or was forbidden error TokenNotAllowedException(); /// @notice Thrown on attempting to add a token that is already in a collateral list error TokenAlreadyAddedException(); /// @notice Thrown when attempting to use quota-related logic for a token that is not quoted in quota keeper error TokenIsNotQuotedException(); /// @notice Thrown on attempting to interact with an address that is not a valid target contract error TargetContractNotAllowedException(); /// @notice Thrown if function is not implemented error NotImplementedException(); // ------------------ // // CONTRACTS REGISTER // // ------------------ // /// @notice Thrown when an address is expected to be a registered credit manager, but is not error RegisteredCreditManagerOnlyException(); /// @notice Thrown when an address is expected to be a registered pool, but is not error RegisteredPoolOnlyException(); // ---------------- // // ADDRESS PROVIDER // // ---------------- // /// @notice Reverts if address key isn't found in address provider error AddressNotFoundException(); // ----------------- // // POOL, PQK, GAUGES // // ----------------- // /// @notice Thrown by pool-adjacent contracts when a credit manager being connected has a wrong pool address error IncompatibleCreditManagerException(); /// @notice Thrown when attempting to set an incompatible successor staking contract error IncompatibleSuccessorException(); /// @notice Thrown when attempting to vote in a non-approved contract error VotingContractNotAllowedException(); /// @notice Thrown when attempting to unvote more votes than there are error InsufficientVotesException(); /// @notice Thrown when attempting to borrow more than the second point on a two-point curve error BorrowingMoreThanU2ForbiddenException(); /// @notice Thrown when a credit manager attempts to borrow more than its limit in the current block, or in general error CreditManagerCantBorrowException(); /// @notice Thrown when attempting to connect a quota keeper to an incompatible pool error IncompatiblePoolQuotaKeeperException(); /// @notice Thrown when the quota is outside of min/max bounds error QuotaIsOutOfBoundsException(); // -------------- // // CREDIT MANAGER // // -------------- // /// @notice Thrown on failing a full collateral check after multicall error NotEnoughCollateralException(); /// @notice Thrown if an attempt to approve a collateral token to adapter's target contract fails error AllowanceFailedException(); /// @notice Thrown on attempting to perform an action for a credit account that does not exist error CreditAccountDoesNotExistException(); /// @notice Thrown on configurator attempting to add more than 255 collateral tokens error TooManyTokensException(); /// @notice Thrown if more than the maximum number of tokens were enabled on a credit account error TooManyEnabledTokensException(); /// @notice Thrown when attempting to execute a protocol interaction without active credit account set error ActiveCreditAccountNotSetException(); /// @notice Thrown when trying to update credit account's debt more than once in the same block error DebtUpdatedTwiceInOneBlockException(); /// @notice Thrown when trying to repay all debt while having active quotas error DebtToZeroWithActiveQuotasException(); /// @notice Thrown when a zero-debt account attempts to update quota error UpdateQuotaOnZeroDebtAccountException(); /// @notice Thrown when attempting to close an account with non-zero debt error CloseAccountWithNonZeroDebtException(); /// @notice Thrown when value of funds remaining on the account after liquidation is insufficient error InsufficientRemainingFundsException(); /// @notice Thrown when Credit Facade tries to write over a non-zero active Credit Account error ActiveCreditAccountOverridenException(); // ------------------- // // CREDIT CONFIGURATOR // // ------------------- // /// @notice Thrown on attempting to use a non-ERC20 contract or an EOA as a token error IncorrectTokenContractException(); /// @notice Thrown if the newly set LT if zero or greater than the underlying's LT error IncorrectLiquidationThresholdException(); /// @notice Thrown if borrowing limits are incorrect: minLimit > maxLimit or maxLimit > blockLimit error IncorrectLimitsException(); /// @notice Thrown if the new expiration date is less than the current expiration date or current timestamp error IncorrectExpirationDateException(); /// @notice Thrown if a contract returns a wrong credit manager or reverts when trying to retrieve it error IncompatibleContractException(); /// @notice Thrown if attempting to forbid an adapter that is not registered in the credit manager error AdapterIsNotRegisteredException(); /// @notice Thrown when trying to manually set total debt parameters in a credit facade that doesn't track them error TotalDebtNotTrackedException(); // ------------- // // CREDIT FACADE // // ------------- // /// @notice Thrown when attempting to perform an action that is forbidden in whitelisted mode error ForbiddenInWhitelistedModeException(); /// @notice Thrown if credit facade is not expirable, and attempted aciton requires expirability error NotAllowedWhenNotExpirableException(); /// @notice Thrown if a selector that doesn't match any allowed function is passed to the credit facade in a multicall error UnknownMethodException(); /// @notice Thrown when trying to close an account with enabled tokens error CloseAccountWithEnabledTokensException(); /// @notice Thrown if a liquidator tries to liquidate an account with a health factor above 1 error CreditAccountNotLiquidatableException(); /// @notice Thrown if too much new debt was taken within a single block error BorrowedBlockLimitException(); /// @notice Thrown if the new debt principal for a credit account falls outside of borrowing limits error BorrowAmountOutOfLimitsException(); /// @notice Thrown if a user attempts to open an account via an expired credit facade error NotAllowedAfterExpirationException(); /// @notice Thrown if expected balances are attempted to be set twice without performing a slippage check error ExpectedBalancesAlreadySetException(); /// @notice Thrown if attempting to perform a slippage check when excepted balances are not set error ExpectedBalancesNotSetException(); /// @notice Thrown if balance of at least one token is less than expected during a slippage check error BalanceLessThanExpectedException(); /// @notice Thrown when trying to perform an action that is forbidden when credit account has enabled forbidden tokens error ForbiddenTokensException(); /// @notice Thrown when new forbidden tokens are enabled during the multicall error ForbiddenTokenEnabledException(); /// @notice Thrown when enabled forbidden token balance is increased during the multicall error ForbiddenTokenBalanceIncreasedException(); /// @notice Thrown when the remaining token balance is increased during the liquidation error RemainingTokenBalanceIncreasedException(); /// @notice Thrown if `botMulticall` is called by an address that is not approved by account owner or is forbidden error NotApprovedBotException(); /// @notice Thrown when attempting to perform a multicall action with no permission for it error NoPermissionException(uint256 permission); /// @notice Thrown when attempting to give a bot unexpected permissions error UnexpectedPermissionsException(); /// @notice Thrown when a custom HF parameter lower than 10000 is passed into the full collateral check error CustomHealthFactorTooLowException(); /// @notice Thrown when submitted collateral hint is not a valid token mask error InvalidCollateralHintException(); // ------ // // ACCESS // // ------ // /// @notice Thrown on attempting to call an access restricted function not as credit account owner error CallerNotCreditAccountOwnerException(); /// @notice Thrown on attempting to call an access restricted function not as configurator error CallerNotConfiguratorException(); /// @notice Thrown on attempting to call an access-restructed function not as account factory error CallerNotAccountFactoryException(); /// @notice Thrown on attempting to call an access restricted function not as credit manager error CallerNotCreditManagerException(); /// @notice Thrown on attempting to call an access restricted function not as credit facade error CallerNotCreditFacadeException(); /// @notice Thrown on attempting to call an access restricted function not as controller or configurator error CallerNotControllerException(); /// @notice Thrown on attempting to pause a contract without pausable admin rights error CallerNotPausableAdminException(); /// @notice Thrown on attempting to unpause a contract without unpausable admin rights error CallerNotUnpausableAdminException(); /// @notice Thrown on attempting to call an access restricted function not as gauge error CallerNotGaugeException(); /// @notice Thrown on attempting to call an access restricted function not as quota keeper error CallerNotPoolQuotaKeeperException(); /// @notice Thrown on attempting to call an access restricted function not as voter error CallerNotVoterException(); /// @notice Thrown on attempting to call an access restricted function not as allowed adapter error CallerNotAdapterException(); /// @notice Thrown on attempting to call an access restricted function not as migrator error CallerNotMigratorException(); /// @notice Thrown when an address that is not the designated executor attempts to execute a transaction error CallerNotExecutorException(); /// @notice Thrown on attempting to call an access restricted function not as veto admin error CallerNotVetoAdminException(); // ------------------- // // CONTROLLER TIMELOCK // // ------------------- // /// @notice Thrown when the new parameter values do not satisfy required conditions error ParameterChecksFailedException(); /// @notice Thrown when attempting to execute a non-queued transaction error TxNotQueuedException(); /// @notice Thrown when attempting to execute a transaction that is either immature or stale error TxExecutedOutsideTimeWindowException(); /// @notice Thrown when execution of a transaction fails error TxExecutionRevertedException(); /// @notice Thrown when the value of a parameter on execution is different from the value on queue error ParameterChangedAfterQueuedTxException(); // -------- // // BOT LIST // // -------- // /// @notice Thrown when attempting to set non-zero permissions for a forbidden or special bot error InvalidBotException(); // --------------- // // ACCOUNT FACTORY // // --------------- // /// @notice Thrown when trying to deploy second master credit account for a credit manager error MasterCreditAccountAlreadyDeployedException(); /// @notice Thrown when trying to rescue funds from a credit account that is currently in use error CreditAccountIsInUseException(); // ------------ // // PRICE ORACLE // // ------------ // /// @notice Thrown on attempting to set a token price feed to an address that is not a correct price feed error IncorrectPriceFeedException(); /// @notice Thrown on attempting to interact with a price feed for a token not added to the price oracle error PriceFeedDoesNotExistException(); /// @notice Thrown when price feed returns incorrect price for a token error IncorrectPriceException(); /// @notice Thrown when token's price feed becomes stale error StalePriceException();
// SPDX-License-Identifier: BUSL-1.1 // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Foundation, 2023. pragma solidity ^0.8.17; import {IACL} from "@gearbox-protocol/core-v2/contracts/interfaces/IACL.sol"; import {AP_ACL, IAddressProviderV3, NO_VERSION_CONTROL} from "../interfaces/IAddressProviderV3.sol"; import {CallerNotConfiguratorException} from "../interfaces/IExceptions.sol"; import {SanityCheckTrait} from "./SanityCheckTrait.sol"; /// @title ACL trait /// @notice Utility class for ACL (access-control list) consumers abstract contract ACLTrait is SanityCheckTrait { /// @notice ACL contract address address public immutable acl; /// @notice Constructor /// @param addressProvider Address provider contract address constructor(address addressProvider) nonZeroAddress(addressProvider) { acl = IAddressProviderV3(addressProvider).getAddressOrRevert(AP_ACL, NO_VERSION_CONTROL); } /// @dev Ensures that function caller has configurator role modifier configuratorOnly() { _ensureCallerIsConfigurator(); _; } /// @dev Reverts if the caller is not the configurator /// @dev Used to cut contract size on modifiers function _ensureCallerIsConfigurator() internal view { if (!_isConfigurator({account: msg.sender})) { revert CallerNotConfiguratorException(); } } /// @dev Checks whether given account has configurator role function _isConfigurator(address account) internal view returns (bool) { return IACL(acl).isConfigurator(account); } }
// SPDX-License-Identifier: BUSL-1.1 // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Foundation, 2023. pragma solidity ^0.8.17; uint8 constant NOT_ENTERED = 1; uint8 constant ENTERED = 2; /// @title Reentrancy guard trait /// @notice Same as OpenZeppelin's `ReentrancyGuard` but only uses 1 byte of storage instead of 32 abstract contract ReentrancyGuardTrait { uint8 internal _reentrancyStatus = NOT_ENTERED; /// @dev Prevents a contract from calling itself, directly or indirectly. /// Calling a `nonReentrant` function from another `nonReentrant` /// function is not supported. It is possible to prevent this from happening /// by making the `nonReentrant` function external, and making it call a /// `private` function that does the actual work. modifier nonReentrant() { // On the first call to nonReentrant, _notEntered will be true _ensureNotEntered(); // Any calls to nonReentrant after this point will fail _reentrancyStatus = ENTERED; _; // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _reentrancyStatus = NOT_ENTERED; } /// @dev Reverts if the contract is currently entered /// @dev Used to cut contract size on modifiers function _ensureNotEntered() internal view { require(_reentrancyStatus != ENTERED, "ReentrancyGuard: reentrant call"); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * * Furthermore, `isContract` will also return true if the target contract within * the same transaction is already scheduled for destruction by `SELFDESTRUCT`, * which only has an effect at the end of a transaction. * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. * * _Available since v4.8._ */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata, string memory errorMessage ) internal view returns (bytes memory) { if (success) { if (returndata.length == 0) { // only check isContract if the call was successful and the return data is empty // otherwise we already know that it was a contract require(isContract(target), "Address: call to non-contract"); } return returndata; } else { _revert(returndata, errorMessage); } } /** * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason or using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { _revert(returndata, errorMessage); } } function _revert(bytes memory returndata, string memory errorMessage) private pure { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } }
// SPDX-License-Identifier: MIT // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Holdings, 2022 pragma solidity ^0.8.10; import { IVersion } from "./IVersion.sol"; /// @title Price oracle base interface /// @notice Functions shared accross newer and older versions interface IPriceOracleBase is IVersion { function getPrice(address token) external view returns (uint256); function convertToUSD( uint256 amount, address token ) external view returns (uint256); function convertFromUSD( uint256 amount, address token ) external view returns (uint256); function convert( uint256 amount, address tokenFrom, address tokenTo ) external view returns (uint256); function priceFeeds( address token ) external view returns (address priceFeed); }
// SPDX-License-Identifier: MIT // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Holdings, 2022 pragma solidity ^0.8.10; /// @title Version interface /// @notice Defines contract version interface IVersion { /// @notice Contract version function version() external view returns (uint256); }
// SPDX-License-Identifier: BUSL-1.1 // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Foundation, 2023. pragma solidity ^0.8.17; import {ZeroAddressException} from "../interfaces/IExceptions.sol"; /// @title Sanity check trait abstract contract SanityCheckTrait { /// @dev Ensures that passed address is non-zero modifier nonZeroAddress(address addr) { _revertIfZeroAddress(addr); _; } /// @dev Reverts if address is zero function _revertIfZeroAddress(address addr) private pure { if (addr == address(0)) revert ZeroAddressException(); } }
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Contract Security Audit
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Multichain Portfolio | 30 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.