// SPDX-License-Identifier: MIT
pragma solidity ^0.8.10;
/*
* @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 GSN 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 payable) {
return payable(msg.sender);
}
function _msgData() internal view virtual returns (bytes memory) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
library DataTypes {
/**
* This exists specifically to maintain the `getReserveData()` interface, since the new, internal
* `ReserveData` struct includes the reserve's `virtualUnderlyingBalance`.
*/
struct ReserveDataLegacy {
//stores the reserve configuration
ReserveConfigurationMap configuration;
//the liquidity index. Expressed in ray
uint128 liquidityIndex;
//the current supply rate. Expressed in ray
uint128 currentLiquidityRate;
//variable borrow index. Expressed in ray
uint128 variableBorrowIndex;
//the current variable borrow rate. Expressed in ray
uint128 currentVariableBorrowRate;
// DEPRECATED on v3.2.0
uint128 currentStableBorrowRate;
//timestamp of last update
uint40 lastUpdateTimestamp;
//the id of the reserve. Represents the position in the list of the active reserves
uint16 id;
//aToken address
address aTokenAddress;
// DEPRECATED on v3.2.0
address stableDebtTokenAddress;
//variableDebtToken address
address variableDebtTokenAddress;
//address of the interest rate strategy
address interestRateStrategyAddress;
//the current treasury balance, scaled
uint128 accruedToTreasury;
//the outstanding unbacked aTokens minted through the bridging feature
uint128 unbacked;
//the outstanding debt borrowed against this asset in isolation mode
uint128 isolationModeTotalDebt;
}
struct ReserveData {
//stores the reserve configuration
ReserveConfigurationMap configuration;
//the liquidity index. Expressed in ray
uint128 liquidityIndex;
//the current supply rate. Expressed in ray
uint128 currentLiquidityRate;
//variable borrow index. Expressed in ray
uint128 variableBorrowIndex;
//the current variable borrow rate. Expressed in ray
uint128 currentVariableBorrowRate;
// DEPRECATED on v3.2.0
uint128 __deprecatedStableBorrowRate;
//timestamp of last update
uint40 lastUpdateTimestamp;
//the id of the reserve. Represents the position in the list of the active reserves
uint16 id;
//timestamp until when liquidations are not allowed on the reserve, if set to past liquidations will be allowed
uint40 liquidationGracePeriodUntil;
//aToken address
address aTokenAddress;
// DEPRECATED on v3.2.0
address __deprecatedStableDebtTokenAddress;
//variableDebtToken address
address variableDebtTokenAddress;
//address of the interest rate strategy
address interestRateStrategyAddress;
//the current treasury balance, scaled
uint128 accruedToTreasury;
//the outstanding unbacked aTokens minted through the bridging feature
uint128 unbacked;
//the outstanding debt borrowed against this asset in isolation mode
uint128 isolationModeTotalDebt;
//the amount of underlying accounted for by the protocol
uint128 virtualUnderlyingBalance;
}
struct ReserveConfigurationMap {
//bit 0-15: LTV
//bit 16-31: Liq. threshold
//bit 32-47: Liq. bonus
//bit 48-55: Decimals
//bit 56: reserve is active
//bit 57: reserve is frozen
//bit 58: borrowing is enabled
//bit 59: DEPRECATED: stable rate borrowing enabled
//bit 60: asset is paused
//bit 61: borrowing in isolation mode is enabled
//bit 62: siloed borrowing enabled
//bit 63: flashloaning enabled
//bit 64-79: reserve factor
//bit 80-115: borrow cap in whole tokens, borrowCap == 0 => no cap
//bit 116-151: supply cap in whole tokens, supplyCap == 0 => no cap
//bit 152-167: liquidation protocol fee
//bit 168-175: DEPRECATED: eMode category
//bit 176-211: unbacked mint cap in whole tokens, unbackedMintCap == 0 => minting disabled
//bit 212-251: debt ceiling for isolation mode with (ReserveConfiguration::DEBT_CEILING_DECIMALS) decimals
//bit 252: virtual accounting is enabled for the reserve
//bit 253-255 unused
uint256 data;
}
struct UserConfigurationMap {
/**
* @dev Bitmap of the users collaterals and borrows. It is divided in pairs of bits, one pair per asset.
* The first bit indicates if an asset is used as collateral by the user, the second whether an
* asset is borrowed by the user.
*/
uint256 data;
}
// DEPRECATED: kept for backwards compatibility, might be removed in a future version
struct EModeCategoryLegacy {
// each eMode category has a custom ltv and liquidation threshold
uint16 ltv;
uint16 liquidationThreshold;
uint16 liquidationBonus;
// DEPRECATED
address priceSource;
string label;
}
struct CollateralConfig {
uint16 ltv;
uint16 liquidationThreshold;
uint16 liquidationBonus;
}
struct EModeCategoryBaseConfiguration {
uint16 ltv;
uint16 liquidationThreshold;
uint16 liquidationBonus;
string label;
}
struct EModeCategory {
// each eMode category has a custom ltv and liquidation threshold
uint16 ltv;
uint16 liquidationThreshold;
uint16 liquidationBonus;
uint128 collateralBitmap;
string label;
uint128 borrowableBitmap;
}
enum InterestRateMode {
NONE,
__DEPRECATED,
VARIABLE
}
struct ReserveCache {
uint256 currScaledVariableDebt;
uint256 nextScaledVariableDebt;
uint256 currLiquidityIndex;
uint256 nextLiquidityIndex;
uint256 currVariableBorrowIndex;
uint256 nextVariableBorrowIndex;
uint256 currLiquidityRate;
uint256 currVariableBorrowRate;
uint256 reserveFactor;
ReserveConfigurationMap reserveConfiguration;
address aTokenAddress;
address variableDebtTokenAddress;
uint40 reserveLastUpdateTimestamp;
}
struct ExecuteLiquidationCallParams {
uint256 reservesCount;
uint256 debtToCover;
address collateralAsset;
address debtAsset;
address user;
bool receiveAToken;
address priceOracle;
uint8 userEModeCategory;
address priceOracleSentinel;
}
struct ExecuteSupplyParams {
address asset;
uint256 amount;
address onBehalfOf;
uint16 referralCode;
}
struct ExecuteBorrowParams {
address asset;
address user;
address onBehalfOf;
uint256 amount;
InterestRateMode interestRateMode;
uint16 referralCode;
bool releaseUnderlying;
uint256 reservesCount;
address oracle;
uint8 userEModeCategory;
address priceOracleSentinel;
}
struct ExecuteRepayParams {
address asset;
uint256 amount;
InterestRateMode interestRateMode;
address onBehalfOf;
bool useATokens;
}
struct ExecuteWithdrawParams {
address asset;
uint256 amount;
address to;
uint256 reservesCount;
address oracle;
uint8 userEModeCategory;
}
struct ExecuteSetUserEModeParams {
uint256 reservesCount;
address oracle;
uint8 categoryId;
}
struct FinalizeTransferParams {
address asset;
address from;
address to;
uint256 amount;
uint256 balanceFromBefore;
uint256 balanceToBefore;
uint256 reservesCount;
address oracle;
uint8 fromEModeCategory;
}
struct FlashloanParams {
address receiverAddress;
address[] assets;
uint256[] amounts;
uint256[] interestRateModes;
address onBehalfOf;
bytes params;
uint16 referralCode;
uint256 flashLoanPremiumToProtocol;
uint256 flashLoanPremiumTotal;
uint256 reservesCount;
address addressesProvider;
address pool;
uint8 userEModeCategory;
bool isAuthorizedFlashBorrower;
}
struct FlashloanSimpleParams {
address receiverAddress;
address asset;
uint256 amount;
bytes params;
uint16 referralCode;
uint256 flashLoanPremiumToProtocol;
uint256 flashLoanPremiumTotal;
}
struct FlashLoanRepaymentParams {
uint256 amount;
uint256 totalPremium;
uint256 flashLoanPremiumToProtocol;
address asset;
address receiverAddress;
uint16 referralCode;
}
struct CalculateUserAccountDataParams {
UserConfigurationMap userConfig;
uint256 reservesCount;
address user;
address oracle;
uint8 userEModeCategory;
}
struct ValidateBorrowParams {
ReserveCache reserveCache;
UserConfigurationMap userConfig;
address asset;
address userAddress;
uint256 amount;
InterestRateMode interestRateMode;
uint256 reservesCount;
address oracle;
uint8 userEModeCategory;
address priceOracleSentinel;
bool isolationModeActive;
address isolationModeCollateralAddress;
uint256 isolationModeDebtCeiling;
}
struct ValidateLiquidationCallParams {
ReserveCache debtReserveCache;
uint256 totalDebt;
uint256 healthFactor;
address priceOracleSentinel;
}
struct CalculateInterestRatesParams {
uint256 unbacked;
uint256 liquidityAdded;
uint256 liquidityTaken;
uint256 totalDebt;
uint256 reserveFactor;
address reserve;
bool usingVirtualBalance;
uint256 virtualUnderlyingBalance;
}
struct InitReserveParams {
address asset;
address aTokenAddress;
address variableDebtAddress;
address interestRateStrategyAddress;
uint16 reservesCount;
uint16 maxNumberReserves;
}
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @title Errors library
* @author Aave
* @notice Defines the error messages emitted by the different contracts of the Aave protocol
*/
library Errors {
string public constant CALLER_NOT_POOL_ADMIN = '1'; // 'The caller of the function is not a pool admin'
string public constant CALLER_NOT_EMERGENCY_ADMIN = '2'; // 'The caller of the function is not an emergency admin'
string public constant CALLER_NOT_POOL_OR_EMERGENCY_ADMIN = '3'; // 'The caller of the function is not a pool or emergency admin'
string public constant CALLER_NOT_RISK_OR_POOL_ADMIN = '4'; // 'The caller of the function is not a risk or pool admin'
string public constant CALLER_NOT_ASSET_LISTING_OR_POOL_ADMIN = '5'; // 'The caller of the function is not an asset listing or pool admin'
string public constant CALLER_NOT_BRIDGE = '6'; // 'The caller of the function is not a bridge'
string public constant ADDRESSES_PROVIDER_NOT_REGISTERED = '7'; // 'Pool addresses provider is not registered'
string public constant INVALID_ADDRESSES_PROVIDER_ID = '8'; // 'Invalid id for the pool addresses provider'
string public constant NOT_CONTRACT = '9'; // 'Address is not a contract'
string public constant CALLER_NOT_POOL_CONFIGURATOR = '10'; // 'The caller of the function is not the pool configurator'
string public constant CALLER_NOT_ATOKEN = '11'; // 'The caller of the function is not an AToken'
string public constant INVALID_ADDRESSES_PROVIDER = '12'; // 'The address of the pool addresses provider is invalid'
string public constant INVALID_FLASHLOAN_EXECUTOR_RETURN = '13'; // 'Invalid return value of the flashloan executor function'
string public constant RESERVE_ALREADY_ADDED = '14'; // 'Reserve has already been added to reserve list'
string public constant NO_MORE_RESERVES_ALLOWED = '15'; // 'Maximum amount of reserves in the pool reached'
string public constant EMODE_CATEGORY_RESERVED = '16'; // 'Zero eMode category is reserved for volatile heterogeneous assets'
string public constant INVALID_EMODE_CATEGORY_ASSIGNMENT = '17'; // 'Invalid eMode category assignment to asset'
string public constant RESERVE_LIQUIDITY_NOT_ZERO = '18'; // 'The liquidity of the reserve needs to be 0'
string public constant FLASHLOAN_PREMIUM_INVALID = '19'; // 'Invalid flashloan premium'
string public constant INVALID_RESERVE_PARAMS = '20'; // 'Invalid risk parameters for the reserve'
string public constant INVALID_EMODE_CATEGORY_PARAMS = '21'; // 'Invalid risk parameters for the eMode category'
string public constant BRIDGE_PROTOCOL_FEE_INVALID = '22'; // 'Invalid bridge protocol fee'
string public constant CALLER_MUST_BE_POOL = '23'; // 'The caller of this function must be a pool'
string public constant INVALID_MINT_AMOUNT = '24'; // 'Invalid amount to mint'
string public constant INVALID_BURN_AMOUNT = '25'; // 'Invalid amount to burn'
string public constant INVALID_AMOUNT = '26'; // 'Amount must be greater than 0'
string public constant RESERVE_INACTIVE = '27'; // 'Action requires an active reserve'
string public constant RESERVE_FROZEN = '28'; // 'Action cannot be performed because the reserve is frozen'
string public constant RESERVE_PAUSED = '29'; // 'Action cannot be performed because the reserve is paused'
string public constant BORROWING_NOT_ENABLED = '30'; // 'Borrowing is not enabled'
string public constant NOT_ENOUGH_AVAILABLE_USER_BALANCE = '32'; // 'User cannot withdraw more than the available balance'
string public constant INVALID_INTEREST_RATE_MODE_SELECTED = '33'; // 'Invalid interest rate mode selected'
string public constant COLLATERAL_BALANCE_IS_ZERO = '34'; // 'The collateral balance is 0'
string public constant HEALTH_FACTOR_LOWER_THAN_LIQUIDATION_THRESHOLD = '35'; // 'Health factor is lesser than the liquidation threshold'
string public constant COLLATERAL_CANNOT_COVER_NEW_BORROW = '36'; // 'There is not enough collateral to cover a new borrow'
string public constant COLLATERAL_SAME_AS_BORROWING_CURRENCY = '37'; // 'Collateral is (mostly) the same currency that is being borrowed'
string public constant NO_DEBT_OF_SELECTED_TYPE = '39'; // 'For repayment of a specific type of debt, the user needs to have debt that type'
string public constant NO_EXPLICIT_AMOUNT_TO_REPAY_ON_BEHALF = '40'; // 'To repay on behalf of a user an explicit amount to repay is needed'
string public constant NO_OUTSTANDING_VARIABLE_DEBT = '42'; // 'User does not have outstanding variable rate debt on this reserve'
string public constant UNDERLYING_BALANCE_ZERO = '43'; // 'The underlying balance needs to be greater than 0'
string public constant INTEREST_RATE_REBALANCE_CONDITIONS_NOT_MET = '44'; // 'Interest rate rebalance conditions were not met'
string public constant HEALTH_FACTOR_NOT_BELOW_THRESHOLD = '45'; // 'Health factor is not below the threshold'
string public constant COLLATERAL_CANNOT_BE_LIQUIDATED = '46'; // 'The collateral chosen cannot be liquidated'
string public constant SPECIFIED_CURRENCY_NOT_BORROWED_BY_USER = '47'; // 'User did not borrow the specified currency'
string public constant INCONSISTENT_FLASHLOAN_PARAMS = '49'; // 'Inconsistent flashloan parameters'
string public constant BORROW_CAP_EXCEEDED = '50'; // 'Borrow cap is exceeded'
string public constant SUPPLY_CAP_EXCEEDED = '51'; // 'Supply cap is exceeded'
string public constant UNBACKED_MINT_CAP_EXCEEDED = '52'; // 'Unbacked mint cap is exceeded'
string public constant DEBT_CEILING_EXCEEDED = '53'; // 'Debt ceiling is exceeded'
string public constant UNDERLYING_CLAIMABLE_RIGHTS_NOT_ZERO = '54'; // 'Claimable rights over underlying not zero (aToken supply or accruedToTreasury)'
string public constant VARIABLE_DEBT_SUPPLY_NOT_ZERO = '56'; // 'Variable debt supply is not zero'
string public constant LTV_VALIDATION_FAILED = '57'; // 'Ltv validation failed'
string public constant INCONSISTENT_EMODE_CATEGORY = '58'; // 'Inconsistent eMode category'
string public constant PRICE_ORACLE_SENTINEL_CHECK_FAILED = '59'; // 'Price oracle sentinel validation failed'
string public constant ASSET_NOT_BORROWABLE_IN_ISOLATION = '60'; // 'Asset is not borrowable in isolation mode'
string public constant RESERVE_ALREADY_INITIALIZED = '61'; // 'Reserve has already been initialized'
string public constant USER_IN_ISOLATION_MODE_OR_LTV_ZERO = '62'; // 'User is in isolation mode or ltv is zero'
string public constant INVALID_LTV = '63'; // 'Invalid ltv parameter for the reserve'
string public constant INVALID_LIQ_THRESHOLD = '64'; // 'Invalid liquidity threshold parameter for the reserve'
string public constant INVALID_LIQ_BONUS = '65'; // 'Invalid liquidity bonus parameter for the reserve'
string public constant INVALID_DECIMALS = '66'; // 'Invalid decimals parameter of the underlying asset of the reserve'
string public constant INVALID_RESERVE_FACTOR = '67'; // 'Invalid reserve factor parameter for the reserve'
string public constant INVALID_BORROW_CAP = '68'; // 'Invalid borrow cap for the reserve'
string public constant INVALID_SUPPLY_CAP = '69'; // 'Invalid supply cap for the reserve'
string public constant INVALID_LIQUIDATION_PROTOCOL_FEE = '70'; // 'Invalid liquidation protocol fee for the reserve'
string public constant INVALID_EMODE_CATEGORY = '71'; // 'Invalid eMode category for the reserve'
string public constant INVALID_UNBACKED_MINT_CAP = '72'; // 'Invalid unbacked mint cap for the reserve'
string public constant INVALID_DEBT_CEILING = '73'; // 'Invalid debt ceiling for the reserve
string public constant INVALID_RESERVE_INDEX = '74'; // 'Invalid reserve index'
string public constant ACL_ADMIN_CANNOT_BE_ZERO = '75'; // 'ACL admin cannot be set to the zero address'
string public constant INCONSISTENT_PARAMS_LENGTH = '76'; // 'Array parameters that should be equal length are not'
string public constant ZERO_ADDRESS_NOT_VALID = '77'; // 'Zero address not valid'
string public constant INVALID_EXPIRATION = '78'; // 'Invalid expiration'
string public constant INVALID_SIGNATURE = '79'; // 'Invalid signature'
string public constant OPERATION_NOT_SUPPORTED = '80'; // 'Operation not supported'
string public constant DEBT_CEILING_NOT_ZERO = '81'; // 'Debt ceiling is not zero'
string public constant ASSET_NOT_LISTED = '82'; // 'Asset is not listed'
string public constant INVALID_OPTIMAL_USAGE_RATIO = '83'; // 'Invalid optimal usage ratio'
string public constant UNDERLYING_CANNOT_BE_RESCUED = '85'; // 'The underlying asset cannot be rescued'
string public constant ADDRESSES_PROVIDER_ALREADY_ADDED = '86'; // 'Reserve has already been added to reserve list'
string public constant POOL_ADDRESSES_DO_NOT_MATCH = '87'; // 'The token implementation pool address and the pool address provided by the initializing pool do not match'
string public constant SILOED_BORROWING_VIOLATION = '89'; // 'User is trying to borrow multiple assets including a siloed one'
string public constant RESERVE_DEBT_NOT_ZERO = '90'; // the total debt of the reserve needs to be 0
string public constant FLASHLOAN_DISABLED = '91'; // FlashLoaning for this asset is disabled
string public constant INVALID_MAX_RATE = '92'; // The expect maximum borrow rate is invalid
string public constant WITHDRAW_TO_ATOKEN = '93'; // Withdrawing to the aToken is not allowed
string public constant SUPPLY_TO_ATOKEN = '94'; // Supplying to the aToken is not allowed
string public constant SLOPE_2_MUST_BE_GTE_SLOPE_1 = '95'; // Variable interest rate slope 2 can not be lower than slope 1
string public constant CALLER_NOT_RISK_OR_POOL_OR_EMERGENCY_ADMIN = '96'; // 'The caller of the function is not a risk, pool or emergency admin'
string public constant LIQUIDATION_GRACE_SENTINEL_CHECK_FAILED = '97'; // 'Liquidation grace sentinel validation failed'
string public constant INVALID_GRACE_PERIOD = '98'; // Grace period above a valid range
string public constant INVALID_FREEZE_STATE = '99'; // Reserve is already in the passed freeze state
string public constant NOT_BORROWABLE_IN_EMODE = '100'; // Asset not borrowable in eMode
}
// SPDX-License-Identifier: LGPL-3.0-or-later
pragma solidity ^0.8.10;
import {IERC20} from '../../openzeppelin/contracts/IERC20.sol';
/// @title Gnosis Protocol v2 Safe ERC20 Transfer Library
/// @author Gnosis Developers
/// @dev Gas-efficient version of Openzeppelin's SafeERC20 contract.
library GPv2SafeERC20 {
/// @dev Wrapper around a call to the ERC20 function `transfer` that reverts
/// also when the token returns `false`.
function safeTransfer(IERC20 token, address to, uint256 value) internal {
bytes4 selector_ = token.transfer.selector;
// solhint-disable-next-line no-inline-assembly
assembly {
let freeMemoryPointer := mload(0x40)
mstore(freeMemoryPointer, selector_)
mstore(add(freeMemoryPointer, 4), and(to, 0xffffffffffffffffffffffffffffffffffffffff))
mstore(add(freeMemoryPointer, 36), value)
if iszero(call(gas(), token, 0, freeMemoryPointer, 68, 0, 0)) {
returndatacopy(0, 0, returndatasize())
revert(0, returndatasize())
}
}
require(getLastTransferResult(token), 'GPv2: failed transfer');
}
/// @dev Wrapper around a call to the ERC20 function `transferFrom` that
/// reverts also when the token returns `false`.
function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
bytes4 selector_ = token.transferFrom.selector;
// solhint-disable-next-line no-inline-assembly
assembly {
let freeMemoryPointer := mload(0x40)
mstore(freeMemoryPointer, selector_)
mstore(add(freeMemoryPointer, 4), and(from, 0xffffffffffffffffffffffffffffffffffffffff))
mstore(add(freeMemoryPointer, 36), and(to, 0xffffffffffffffffffffffffffffffffffffffff))
mstore(add(freeMemoryPointer, 68), value)
if iszero(call(gas(), token, 0, freeMemoryPointer, 100, 0, 0)) {
returndatacopy(0, 0, returndatasize())
revert(0, returndatasize())
}
}
require(getLastTransferResult(token), 'GPv2: failed transferFrom');
}
/// @dev Verifies that the last return was a successful `transfer*` call.
/// This is done by checking that the return data is either empty, or
/// is a valid ABI encoded boolean.
function getLastTransferResult(IERC20 token) private view returns (bool success) {
// NOTE: Inspecting previous return data requires assembly. Note that
// we write the return data to memory 0 in the case where the return
// data size is 32, this is OK since the first 64 bytes of memory are
// reserved by Solidy as a scratch space that can be used within
// assembly blocks.
// <https://docs.soliditylang.org/en/v0.7.6/internals/layout_in_memory.html>
// solhint-disable-next-line no-inline-assembly
assembly {
/// @dev Revert with an ABI encoded Solidity error with a message
/// that fits into 32-bytes.
///
/// An ABI encoded Solidity error has the following memory layout:
///
/// ------------+----------------------------------
/// byte range | value
/// ------------+----------------------------------
/// 0x00..0x04 | selector("Error(string)")
/// 0x04..0x24 | string offset (always 0x20)
/// 0x24..0x44 | string length
/// 0x44..0x64 | string value, padded to 32-bytes
function revertWithMessage(length, message) {
mstore(0x00, '\x08\xc3\x79\xa0')
mstore(0x04, 0x20)
mstore(0x24, length)
mstore(0x44, message)
revert(0x00, 0x64)
}
switch returndatasize()
// Non-standard ERC20 transfer without return.
case 0 {
// NOTE: When the return data size is 0, verify that there
// is code at the address. This is done in order to maintain
// compatibility with Solidity calling conventions.
// <https://docs.soliditylang.org/en/v0.7.6/control-structures.html#external-function-calls>
if iszero(extcodesize(token)) {
revertWithMessage(20, 'GPv2: not a contract')
}
success := 1
}
// Standard ERC20 transfer returning boolean success value.
case 32 {
returndatacopy(0, 0, returndatasize())
// NOTE: For ABI encoding v1, any non-zero value is accepted
// as `true` for a boolean. In order to stay compatible with
// OpenZeppelin's `SafeERC20` library which is known to work
// with the existing ERC20 implementation we care about,
// make sure we return success for any non-zero return value
// from the `transfer*` call.
success := iszero(iszero(mload(0)))
}
default {
revertWithMessage(31, 'GPv2: malformed transfer result')
}
}
}
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {IERC20} from '../dependencies/openzeppelin/contracts/IERC20.sol';
import {IScaledBalanceToken} from './IScaledBalanceToken.sol';
import {IInitializableAToken} from './IInitializableAToken.sol';
/**
* @title IAToken
* @author Aave
* @notice Defines the basic interface for an AToken.
*/
interface IAToken is IERC20, IScaledBalanceToken, IInitializableAToken {
/**
* @dev Emitted during the transfer action
* @param from The user whose tokens are being transferred
* @param to The recipient
* @param value The scaled amount being transferred
* @param index The next liquidity index of the reserve
*/
event BalanceTransfer(address indexed from, address indexed to, uint256 value, uint256 index);
/**
* @notice Mints `amount` aTokens to `user`
* @param caller The address performing the mint
* @param onBehalfOf The address of the user that will receive the minted aTokens
* @param amount The amount of tokens getting minted
* @param index The next liquidity index of the reserve
* @return `true` if the the previous balance of the user was 0
*/
function mint(
address caller,
address onBehalfOf,
uint256 amount,
uint256 index
) external returns (bool);
/**
* @notice Burns aTokens from `user` and sends the equivalent amount of underlying to `receiverOfUnderlying`
* @dev In some instances, the mint event could be emitted from a burn transaction
* if the amount to burn is less than the interest that the user accrued
* @param from The address from which the aTokens will be burned
* @param receiverOfUnderlying The address that will receive the underlying
* @param amount The amount being burned
* @param index The next liquidity index of the reserve
*/
function burn(address from, address receiverOfUnderlying, uint256 amount, uint256 index) external;
/**
* @notice Mints aTokens to the reserve treasury
* @param amount The amount of tokens getting minted
* @param index The next liquidity index of the reserve
*/
function mintToTreasury(uint256 amount, uint256 index) external;
/**
* @notice Transfers aTokens in the event of a borrow being liquidated, in case the liquidators reclaims the aToken
* @param from The address getting liquidated, current owner of the aTokens
* @param to The recipient
* @param value The amount of tokens getting transferred
*/
function transferOnLiquidation(address from, address to, uint256 value) external;
/**
* @notice Transfers the underlying asset to `target`.
* @dev Used by the Pool to transfer assets in borrow(), withdraw() and flashLoan()
* @param target The recipient of the underlying
* @param amount The amount getting transferred
*/
function transferUnderlyingTo(address target, uint256 amount) external;
/**
* @notice Handles the underlying received by the aToken after the transfer has been completed.
* @dev The default implementation is empty as with standard ERC20 tokens, nothing needs to be done after the
* transfer is concluded. However in the future there may be aTokens that allow for example to stake the underlying
* to receive LM rewards. In that case, `handleRepayment()` would perform the staking of the underlying asset.
* @param user The user executing the repayment
* @param onBehalfOf The address of the user who will get his debt reduced/removed
* @param amount The amount getting repaid
*/
function handleRepayment(address user, address onBehalfOf, uint256 amount) external;
/**
* @notice Allow passing a signed message to approve spending
* @dev implements the permit function as for
* https://github.com/ethereum/EIPs/blob/8a34d644aacf0f9f8f00815307fd7dd5da07655f/EIPS/eip-2612.md
* @param owner The owner of the funds
* @param spender The spender
* @param value The amount
* @param deadline The deadline timestamp, type(uint256).max for max deadline
* @param v Signature param
* @param s Signature param
* @param r Signature param
*/
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
/**
* @notice Returns the address of the underlying asset of this aToken (E.g. WETH for aWETH)
* @return The address of the underlying asset
*/
function UNDERLYING_ASSET_ADDRESS() external view returns (address);
/**
* @notice Returns the address of the Aave treasury, receiving the fees on this aToken.
* @return Address of the Aave treasury
*/
function RESERVE_TREASURY_ADDRESS() external view returns (address);
/**
* @notice Get the domain separator for the token
* @dev Return cached value if chainId matches cache, otherwise recomputes separator
* @return The domain separator of the token at current chain
*/
function DOMAIN_SEPARATOR() external view returns (bytes32);
/**
* @notice Returns the nonce for owner.
* @param owner The address of the owner
* @return The nonce of the owner
*/
function nonces(address owner) external view returns (uint256);
/**
* @notice Rescue and transfer tokens locked in this contract
* @param token The address of the token
* @param to The address of the recipient
* @param amount The amount of token to transfer
*/
function rescueTokens(address token, address to, uint256 amount) external;
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @title IAaveIncentivesController
* @author Aave
* @notice Defines the basic interface for an Aave Incentives Controller.
* @dev It only contains one single function, needed as a hook on aToken and debtToken transfers.
*/
interface IAaveIncentivesController {
/**
* @dev Called by the corresponding asset on transfer hook in order to update the rewards distribution.
* @dev The units of `totalSupply` and `userBalance` should be the same.
* @param user The address of the user whose asset balance has changed
* @param totalSupply The total supply of the asset prior to user balance change
* @param userBalance The previous user balance prior to balance change
*/
function handleAction(address user, uint256 totalSupply, uint256 userBalance) external;
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {IAaveIncentivesController} from './IAaveIncentivesController.sol';
import {IPool} from './IPool.sol';
/**
* @title IInitializableAToken
* @author Aave
* @notice Interface for the initialize function on AToken
*/
interface IInitializableAToken {
/**
* @dev Emitted when an aToken is initialized
* @param underlyingAsset The address of the underlying asset
* @param pool The address of the associated pool
* @param treasury The address of the treasury
* @param incentivesController The address of the incentives controller for this aToken
* @param aTokenDecimals The decimals of the underlying
* @param aTokenName The name of the aToken
* @param aTokenSymbol The symbol of the aToken
* @param params A set of encoded parameters for additional initialization
*/
event Initialized(
address indexed underlyingAsset,
address indexed pool,
address treasury,
address incentivesController,
uint8 aTokenDecimals,
string aTokenName,
string aTokenSymbol,
bytes params
);
/**
* @notice Initializes the aToken
* @param pool The pool contract that is initializing this contract
* @param treasury The address of the Aave treasury, receiving the fees on this aToken
* @param underlyingAsset The address of the underlying asset of this aToken (E.g. WETH for aWETH)
* @param incentivesController The smart contract managing potential incentives distribution
* @param aTokenDecimals The decimals of the aToken, same as the underlying asset's
* @param aTokenName The name of the aToken
* @param aTokenSymbol The symbol of the aToken
* @param params A set of encoded parameters for additional initialization
*/
function initialize(
IPool pool,
address treasury,
address underlyingAsset,
IAaveIncentivesController incentivesController,
uint8 aTokenDecimals,
string calldata aTokenName,
string calldata aTokenSymbol,
bytes calldata params
) external;
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {IPoolAddressesProvider} from './IPoolAddressesProvider.sol';
import {DataTypes} from '../protocol/libraries/types/DataTypes.sol';
/**
* @title IPool
* @author Aave
* @notice Defines the basic interface for an Aave Pool.
*/
interface IPool {
/**
* @dev Emitted on mintUnbacked()
* @param reserve The address of the underlying asset of the reserve
* @param user The address initiating the supply
* @param onBehalfOf The beneficiary of the supplied assets, receiving the aTokens
* @param amount The amount of supplied assets
* @param referralCode The referral code used
*/
event MintUnbacked(
address indexed reserve,
address user,
address indexed onBehalfOf,
uint256 amount,
uint16 indexed referralCode
);
/**
* @dev Emitted on backUnbacked()
* @param reserve The address of the underlying asset of the reserve
* @param backer The address paying for the backing
* @param amount The amount added as backing
* @param fee The amount paid in fees
*/
event BackUnbacked(address indexed reserve, address indexed backer, uint256 amount, uint256 fee);
/**
* @dev Emitted on supply()
* @param reserve The address of the underlying asset of the reserve
* @param user The address initiating the supply
* @param onBehalfOf The beneficiary of the supply, receiving the aTokens
* @param amount The amount supplied
* @param referralCode The referral code used
*/
event Supply(
address indexed reserve,
address user,
address indexed onBehalfOf,
uint256 amount,
uint16 indexed referralCode
);
/**
* @dev Emitted on withdraw()
* @param reserve The address of the underlying asset being withdrawn
* @param user The address initiating the withdrawal, owner of aTokens
* @param to The address that will receive the underlying
* @param amount The amount to be withdrawn
*/
event Withdraw(address indexed reserve, address indexed user, address indexed to, uint256 amount);
/**
* @dev Emitted on borrow() and flashLoan() when debt needs to be opened
* @param reserve The address of the underlying asset being borrowed
* @param user The address of the user initiating the borrow(), receiving the funds on borrow() or just
* initiator of the transaction on flashLoan()
* @param onBehalfOf The address that will be getting the debt
* @param amount The amount borrowed out
* @param interestRateMode The rate mode: 2 for Variable, 1 is deprecated (changed on v3.2.0)
* @param borrowRate The numeric rate at which the user has borrowed, expressed in ray
* @param referralCode The referral code used
*/
event Borrow(
address indexed reserve,
address user,
address indexed onBehalfOf,
uint256 amount,
DataTypes.InterestRateMode interestRateMode,
uint256 borrowRate,
uint16 indexed referralCode
);
/**
* @dev Emitted on repay()
* @param reserve The address of the underlying asset of the reserve
* @param user The beneficiary of the repayment, getting his debt reduced
* @param repayer The address of the user initiating the repay(), providing the funds
* @param amount The amount repaid
* @param useATokens True if the repayment is done using aTokens, `false` if done with underlying asset directly
*/
event Repay(
address indexed reserve,
address indexed user,
address indexed repayer,
uint256 amount,
bool useATokens
);
/**
* @dev Emitted on borrow(), repay() and liquidationCall() when using isolated assets
* @param asset The address of the underlying asset of the reserve
* @param totalDebt The total isolation mode debt for the reserve
*/
event IsolationModeTotalDebtUpdated(address indexed asset, uint256 totalDebt);
/**
* @dev Emitted when the user selects a certain asset category for eMode
* @param user The address of the user
* @param categoryId The category id
*/
event UserEModeSet(address indexed user, uint8 categoryId);
/**
* @dev Emitted on setUserUseReserveAsCollateral()
* @param reserve The address of the underlying asset of the reserve
* @param user The address of the user enabling the usage as collateral
*/
event ReserveUsedAsCollateralEnabled(address indexed reserve, address indexed user);
/**
* @dev Emitted on setUserUseReserveAsCollateral()
* @param reserve The address of the underlying asset of the reserve
* @param user The address of the user enabling the usage as collateral
*/
event ReserveUsedAsCollateralDisabled(address indexed reserve, address indexed user);
/**
* @dev Emitted on flashLoan()
* @param target The address of the flash loan receiver contract
* @param initiator The address initiating the flash loan
* @param asset The address of the asset being flash borrowed
* @param amount The amount flash borrowed
* @param interestRateMode The flashloan mode: 0 for regular flashloan,
* 1 for Stable (Deprecated on v3.2.0), 2 for Variable
* @param premium The fee flash borrowed
* @param referralCode The referral code used
*/
event FlashLoan(
address indexed target,
address initiator,
address indexed asset,
uint256 amount,
DataTypes.InterestRateMode interestRateMode,
uint256 premium,
uint16 indexed referralCode
);
/**
* @dev Emitted when a borrower is liquidated.
* @param collateralAsset The address of the underlying asset used as collateral, to receive as result of the liquidation
* @param debtAsset The address of the underlying borrowed asset to be repaid with the liquidation
* @param user The address of the borrower getting liquidated
* @param debtToCover The debt amount of borrowed `asset` the liquidator wants to cover
* @param liquidatedCollateralAmount The amount of collateral received by the liquidator
* @param liquidator The address of the liquidator
* @param receiveAToken True if the liquidators wants to receive the collateral aTokens, `false` if he wants
* to receive the underlying collateral asset directly
*/
event LiquidationCall(
address indexed collateralAsset,
address indexed debtAsset,
address indexed user,
uint256 debtToCover,
uint256 liquidatedCollateralAmount,
address liquidator,
bool receiveAToken
);
/**
* @dev Emitted when the state of a reserve is updated.
* @param reserve The address of the underlying asset of the reserve
* @param liquidityRate The next liquidity rate
* @param stableBorrowRate The next stable borrow rate @note deprecated on v3.2.0
* @param variableBorrowRate The next variable borrow rate
* @param liquidityIndex The next liquidity index
* @param variableBorrowIndex The next variable borrow index
*/
event ReserveDataUpdated(
address indexed reserve,
uint256 liquidityRate,
uint256 stableBorrowRate,
uint256 variableBorrowRate,
uint256 liquidityIndex,
uint256 variableBorrowIndex
);
/**
* @dev Emitted when the protocol treasury receives minted aTokens from the accrued interest.
* @param reserve The address of the reserve
* @param amountMinted The amount minted to the treasury
*/
event MintedToTreasury(address indexed reserve, uint256 amountMinted);
/**
* @notice Mints an `amount` of aTokens to the `onBehalfOf`
* @param asset The address of the underlying asset to mint
* @param amount The amount to mint
* @param onBehalfOf The address that will receive the aTokens
* @param referralCode Code used to register the integrator originating the operation, for potential rewards.
* 0 if the action is executed directly by the user, without any middle-man
*/
function mintUnbacked(
address asset,
uint256 amount,
address onBehalfOf,
uint16 referralCode
) external;
/**
* @notice Back the current unbacked underlying with `amount` and pay `fee`.
* @param asset The address of the underlying asset to back
* @param amount The amount to back
* @param fee The amount paid in fees
* @return The backed amount
*/
function backUnbacked(address asset, uint256 amount, uint256 fee) external returns (uint256);
/**
* @notice Supplies an `amount` of underlying asset into the reserve, receiving in return overlying aTokens.
* - E.g. User supplies 100 USDC and gets in return 100 aUSDC
* @param asset The address of the underlying asset to supply
* @param amount The amount to be supplied
* @param onBehalfOf The address that will receive the aTokens, same as msg.sender if the user
* wants to receive them on his own wallet, or a different address if the beneficiary of aTokens
* is a different wallet
* @param referralCode Code used to register the integrator originating the operation, for potential rewards.
* 0 if the action is executed directly by the user, without any middle-man
*/
function supply(address asset, uint256 amount, address onBehalfOf, uint16 referralCode) external;
/**
* @notice Supply with transfer approval of asset to be supplied done via permit function
* see: https://eips.ethereum.org/EIPS/eip-2612 and https://eips.ethereum.org/EIPS/eip-713
* @param asset The address of the underlying asset to supply
* @param amount The amount to be supplied
* @param onBehalfOf The address that will receive the aTokens, same as msg.sender if the user
* wants to receive them on his own wallet, or a different address if the beneficiary of aTokens
* is a different wallet
* @param deadline The deadline timestamp that the permit is valid
* @param referralCode Code used to register the integrator originating the operation, for potential rewards.
* 0 if the action is executed directly by the user, without any middle-man
* @param permitV The V parameter of ERC712 permit sig
* @param permitR The R parameter of ERC712 permit sig
* @param permitS The S parameter of ERC712 permit sig
*/
function supplyWithPermit(
address asset,
uint256 amount,
address onBehalfOf,
uint16 referralCode,
uint256 deadline,
uint8 permitV,
bytes32 permitR,
bytes32 permitS
) external;
/**
* @notice Withdraws an `amount` of underlying asset from the reserve, burning the equivalent aTokens owned
* E.g. User has 100 aUSDC, calls withdraw() and receives 100 USDC, burning the 100 aUSDC
* @param asset The address of the underlying asset to withdraw
* @param amount The underlying amount to be withdrawn
* - Send the value type(uint256).max in order to withdraw the whole aToken balance
* @param to The address that will receive the underlying, same as msg.sender if the user
* wants to receive it on his own wallet, or a different address if the beneficiary is a
* different wallet
* @return The final amount withdrawn
*/
function withdraw(address asset, uint256 amount, address to) external returns (uint256);
/**
* @notice Allows users to borrow a specific `amount` of the reserve underlying asset, provided that the borrower
* already supplied enough collateral, or he was given enough allowance by a credit delegator on the VariableDebtToken
* - E.g. User borrows 100 USDC passing as `onBehalfOf` his own address, receiving the 100 USDC in his wallet
* and 100 variable debt tokens
* @param asset The address of the underlying asset to borrow
* @param amount The amount to be borrowed
* @param interestRateMode 2 for Variable, 1 is deprecated on v3.2.0
* @param referralCode The code used to register the integrator originating the operation, for potential rewards.
* 0 if the action is executed directly by the user, without any middle-man
* @param onBehalfOf The address of the user who will receive the debt. Should be the address of the borrower itself
* calling the function if he wants to borrow against his own collateral, or the address of the credit delegator
* if he has been given credit delegation allowance
*/
function borrow(
address asset,
uint256 amount,
uint256 interestRateMode,
uint16 referralCode,
address onBehalfOf
) external;
/**
* @notice Repays a borrowed `amount` on a specific reserve, burning the equivalent debt tokens owned
* - E.g. User repays 100 USDC, burning 100 variable debt tokens of the `onBehalfOf` address
* @param asset The address of the borrowed underlying asset previously borrowed
* @param amount The amount to repay
* - Send the value type(uint256).max in order to repay the whole debt for `asset` on the specific `debtMode`
* @param interestRateMode 2 for Variable, 1 is deprecated on v3.2.0
* @param onBehalfOf The address of the user who will get his debt reduced/removed. Should be the address of the
* user calling the function if he wants to reduce/remove his own debt, or the address of any other
* other borrower whose debt should be removed
* @return The final amount repaid
*/
function repay(
address asset,
uint256 amount,
uint256 interestRateMode,
address onBehalfOf
) external returns (uint256);
/**
* @notice Repay with transfer approval of asset to be repaid done via permit function
* see: https://eips.ethereum.org/EIPS/eip-2612 and https://eips.ethereum.org/EIPS/eip-713
* @param asset The address of the borrowed underlying asset previously borrowed
* @param amount The amount to repay
* - Send the value type(uint256).max in order to repay the whole debt for `asset` on the specific `debtMode`
* @param interestRateMode 2 for Variable, 1 is deprecated on v3.2.0
* @param onBehalfOf Address of the user who will get his debt reduced/removed. Should be the address of the
* user calling the function if he wants to reduce/remove his own debt, or the address of any other
* other borrower whose debt should be removed
* @param deadline The deadline timestamp that the permit is valid
* @param permitV The V parameter of ERC712 permit sig
* @param permitR The R parameter of ERC712 permit sig
* @param permitS The S parameter of ERC712 permit sig
* @return The final amount repaid
*/
function repayWithPermit(
address asset,
uint256 amount,
uint256 interestRateMode,
address onBehalfOf,
uint256 deadline,
uint8 permitV,
bytes32 permitR,
bytes32 permitS
) external returns (uint256);
/**
* @notice Repays a borrowed `amount` on a specific reserve using the reserve aTokens, burning the
* equivalent debt tokens
* - E.g. User repays 100 USDC using 100 aUSDC, burning 100 variable debt tokens
* @dev Passing uint256.max as amount will clean up any residual aToken dust balance, if the user aToken
* balance is not enough to cover the whole debt
* @param asset The address of the borrowed underlying asset previously borrowed
* @param amount The amount to repay
* - Send the value type(uint256).max in order to repay the whole debt for `asset` on the specific `debtMode`
* @param interestRateMode DEPRECATED in v3.2.0
* @return The final amount repaid
*/
function repayWithATokens(
address asset,
uint256 amount,
uint256 interestRateMode
) external returns (uint256);
/**
* @notice Allows suppliers to enable/disable a specific supplied asset as collateral
* @param asset The address of the underlying asset supplied
* @param useAsCollateral True if the user wants to use the supply as collateral, false otherwise
*/
function setUserUseReserveAsCollateral(address asset, bool useAsCollateral) external;
/**
* @notice Function to liquidate a non-healthy position collateral-wise, with Health Factor below 1
* - The caller (liquidator) covers `debtToCover` amount of debt of the user getting liquidated, and receives
* a proportionally amount of the `collateralAsset` plus a bonus to cover market risk
* @param collateralAsset The address of the underlying asset used as collateral, to receive as result of the liquidation
* @param debtAsset The address of the underlying borrowed asset to be repaid with the liquidation
* @param user The address of the borrower getting liquidated
* @param debtToCover The debt amount of borrowed `asset` the liquidator wants to cover
* @param receiveAToken True if the liquidators wants to receive the collateral aTokens, `false` if he wants
* to receive the underlying collateral asset directly
*/
function liquidationCall(
address collateralAsset,
address debtAsset,
address user,
uint256 debtToCover,
bool receiveAToken
) external;
/**
* @notice Allows smartcontracts to access the liquidity of the pool within one transaction,
* as long as the amount taken plus a fee is returned.
* @dev IMPORTANT There are security concerns for developers of flashloan receiver contracts that must be kept
* into consideration. For further details please visit https://docs.aave.com/developers/
* @param receiverAddress The address of the contract receiving the funds, implementing IFlashLoanReceiver interface
* @param assets The addresses of the assets being flash-borrowed
* @param amounts The amounts of the assets being flash-borrowed
* @param interestRateModes Types of the debt to open if the flash loan is not returned:
* 0 -> Don't open any debt, just revert if funds can't be transferred from the receiver
* 1 -> Deprecated on v3.2.0
* 2 -> Open debt at variable rate for the value of the amount flash-borrowed to the `onBehalfOf` address
* @param onBehalfOf The address that will receive the debt in the case of using 2 on `modes`
* @param params Variadic packed params to pass to the receiver as extra information
* @param referralCode The code used to register the integrator originating the operation, for potential rewards.
* 0 if the action is executed directly by the user, without any middle-man
*/
function flashLoan(
address receiverAddress,
address[] calldata assets,
uint256[] calldata amounts,
uint256[] calldata interestRateModes,
address onBehalfOf,
bytes calldata params,
uint16 referralCode
) external;
/**
* @notice Allows smartcontracts to access the liquidity of the pool within one transaction,
* as long as the amount taken plus a fee is returned.
* @dev IMPORTANT There are security concerns for developers of flashloan receiver contracts that must be kept
* into consideration. For further details please visit https://docs.aave.com/developers/
* @param receiverAddress The address of the contract receiving the funds, implementing IFlashLoanSimpleReceiver interface
* @param asset The address of the asset being flash-borrowed
* @param amount The amount of the asset being flash-borrowed
* @param params Variadic packed params to pass to the receiver as extra information
* @param referralCode The code used to register the integrator originating the operation, for potential rewards.
* 0 if the action is executed directly by the user, without any middle-man
*/
function flashLoanSimple(
address receiverAddress,
address asset,
uint256 amount,
bytes calldata params,
uint16 referralCode
) external;
/**
* @notice Returns the user account data across all the reserves
* @param user The address of the user
* @return totalCollateralBase The total collateral of the user in the base currency used by the price feed
* @return totalDebtBase The total debt of the user in the base currency used by the price feed
* @return availableBorrowsBase The borrowing power left of the user in the base currency used by the price feed
* @return currentLiquidationThreshold The liquidation threshold of the user
* @return ltv The loan to value of The user
* @return healthFactor The current health factor of the user
*/
function getUserAccountData(
address user
)
external
view
returns (
uint256 totalCollateralBase,
uint256 totalDebtBase,
uint256 availableBorrowsBase,
uint256 currentLiquidationThreshold,
uint256 ltv,
uint256 healthFactor
);
/**
* @notice Initializes a reserve, activating it, assigning an aToken and debt tokens and an
* interest rate strategy
* @dev Only callable by the PoolConfigurator contract
* @param asset The address of the underlying asset of the reserve
* @param aTokenAddress The address of the aToken that will be assigned to the reserve
* @param variableDebtAddress The address of the VariableDebtToken that will be assigned to the reserve
* @param interestRateStrategyAddress The address of the interest rate strategy contract
*/
function initReserve(
address asset,
address aTokenAddress,
address variableDebtAddress,
address interestRateStrategyAddress
) external;
/**
* @notice Drop a reserve
* @dev Only callable by the PoolConfigurator contract
* @dev Does not reset eMode flags, which must be considered when reusing the same reserve id for a different reserve.
* @param asset The address of the underlying asset of the reserve
*/
function dropReserve(address asset) external;
/**
* @notice Updates the address of the interest rate strategy contract
* @dev Only callable by the PoolConfigurator contract
* @param asset The address of the underlying asset of the reserve
* @param rateStrategyAddress The address of the interest rate strategy contract
*/
function setReserveInterestRateStrategyAddress(
address asset,
address rateStrategyAddress
) external;
/**
* @notice Accumulates interest to all indexes of the reserve
* @dev Only callable by the PoolConfigurator contract
* @dev To be used when required by the configurator, for example when updating interest rates strategy data
* @param asset The address of the underlying asset of the reserve
*/
function syncIndexesState(address asset) external;
/**
* @notice Updates interest rates on the reserve data
* @dev Only callable by the PoolConfigurator contract
* @dev To be used when required by the configurator, for example when updating interest rates strategy data
* @param asset The address of the underlying asset of the reserve
*/
function syncRatesState(address asset) external;
/**
* @notice Sets the configuration bitmap of the reserve as a whole
* @dev Only callable by the PoolConfigurator contract
* @param asset The address of the underlying asset of the reserve
* @param configuration The new configuration bitmap
*/
function setConfiguration(
address asset,
DataTypes.ReserveConfigurationMap calldata configuration
) external;
/**
* @notice Returns the configuration of the reserve
* @param asset The address of the underlying asset of the reserve
* @return The configuration of the reserve
*/
function getConfiguration(
address asset
) external view returns (DataTypes.ReserveConfigurationMap memory);
/**
* @notice Returns the configuration of the user across all the reserves
* @param user The user address
* @return The configuration of the user
*/
function getUserConfiguration(
address user
) external view returns (DataTypes.UserConfigurationMap memory);
/**
* @notice Returns the normalized income of the reserve
* @param asset The address of the underlying asset of the reserve
* @return The reserve's normalized income
*/
function getReserveNormalizedIncome(address asset) external view returns (uint256);
/**
* @notice Returns the normalized variable debt per unit of asset
* @dev WARNING: This function is intended to be used primarily by the protocol itself to get a
* "dynamic" variable index based on time, current stored index and virtual rate at the current
* moment (approx. a borrower would get if opening a position). This means that is always used in
* combination with variable debt supply/balances.
* If using this function externally, consider that is possible to have an increasing normalized
* variable debt that is not equivalent to how the variable debt index would be updated in storage
* (e.g. only updates with non-zero variable debt supply)
* @param asset The address of the underlying asset of the reserve
* @return The reserve normalized variable debt
*/
function getReserveNormalizedVariableDebt(address asset) external view returns (uint256);
/**
* @notice Returns the state and configuration of the reserve
* @param asset The address of the underlying asset of the reserve
* @return The state and configuration data of the reserve
*/
function getReserveData(address asset) external view returns (DataTypes.ReserveDataLegacy memory);
/**
* @notice Returns the state and configuration of the reserve, including extra data included with Aave v3.1
* @dev DEPRECATED use independent getters instead (getReserveData, getLiquidationGracePeriod)
* @param asset The address of the underlying asset of the reserve
* @return The state and configuration data of the reserve with virtual accounting
*/
function getReserveDataExtended(
address asset
) external view returns (DataTypes.ReserveData memory);
/**
* @notice Returns the virtual underlying balance of the reserve
* @param asset The address of the underlying asset of the reserve
* @return The reserve virtual underlying balance
*/
function getVirtualUnderlyingBalance(address asset) external view returns (uint128);
/**
* @notice Validates and finalizes an aToken transfer
* @dev Only callable by the overlying aToken of the `asset`
* @param asset The address of the underlying asset of the aToken
* @param from The user from which the aTokens are transferred
* @param to The user receiving the aTokens
* @param amount The amount being transferred/withdrawn
* @param balanceFromBefore The aToken balance of the `from` user before the transfer
* @param balanceToBefore The aToken balance of the `to` user before the transfer
*/
function finalizeTransfer(
address asset,
address from,
address to,
uint256 amount,
uint256 balanceFromBefore,
uint256 balanceToBefore
) external;
/**
* @notice Returns the list of the underlying assets of all the initialized reserves
* @dev It does not include dropped reserves
* @return The addresses of the underlying assets of the initialized reserves
*/
function getReservesList() external view returns (address[] memory);
/**
* @notice Returns the number of initialized reserves
* @dev It includes dropped reserves
* @return The count
*/
function getReservesCount() external view returns (uint256);
/**
* @notice Returns the address of the underlying asset of a reserve by the reserve id as stored in the DataTypes.ReserveData struct
* @param id The id of the reserve as stored in the DataTypes.ReserveData struct
* @return The address of the reserve associated with id
*/
function getReserveAddressById(uint16 id) external view returns (address);
/**
* @notice Returns the PoolAddressesProvider connected to this contract
* @return The address of the PoolAddressesProvider
*/
function ADDRESSES_PROVIDER() external view returns (IPoolAddressesProvider);
/**
* @notice Updates the protocol fee on the bridging
* @param bridgeProtocolFee The part of the premium sent to the protocol treasury
*/
function updateBridgeProtocolFee(uint256 bridgeProtocolFee) external;
/**
* @notice Updates flash loan premiums. Flash loan premium consists of two parts:
* - A part is sent to aToken holders as extra, one time accumulated interest
* - A part is collected by the protocol treasury
* @dev The total premium is calculated on the total borrowed amount
* @dev The premium to protocol is calculated on the total premium, being a percentage of `flashLoanPremiumTotal`
* @dev Only callable by the PoolConfigurator contract
* @param flashLoanPremiumTotal The total premium, expressed in bps
* @param flashLoanPremiumToProtocol The part of the premium sent to the protocol treasury, expressed in bps
*/
function updateFlashloanPremiums(
uint128 flashLoanPremiumTotal,
uint128 flashLoanPremiumToProtocol
) external;
/**
* @notice Configures a new or alters an existing collateral configuration of an eMode.
* @dev In eMode, the protocol allows very high borrowing power to borrow assets of the same category.
* The category 0 is reserved as it's the default for volatile assets
* @param id The id of the category
* @param config The configuration of the category
*/
function configureEModeCategory(
uint8 id,
DataTypes.EModeCategoryBaseConfiguration memory config
) external;
/**
* @notice Replaces the current eMode collateralBitmap.
* @param id The id of the category
* @param collateralBitmap The collateralBitmap of the category
*/
function configureEModeCategoryCollateralBitmap(uint8 id, uint128 collateralBitmap) external;
/**
* @notice Replaces the current eMode borrowableBitmap.
* @param id The id of the category
* @param borrowableBitmap The borrowableBitmap of the category
*/
function configureEModeCategoryBorrowableBitmap(uint8 id, uint128 borrowableBitmap) external;
/**
* @notice Returns the data of an eMode category
* @dev DEPRECATED use independent getters instead
* @param id The id of the category
* @return The configuration data of the category
*/
function getEModeCategoryData(
uint8 id
) external view returns (DataTypes.EModeCategoryLegacy memory);
/**
* @notice Returns the label of an eMode category
* @param id The id of the category
* @return The label of the category
*/
function getEModeCategoryLabel(uint8 id) external view returns (string memory);
/**
* @notice Returns the collateral config of an eMode category
* @param id The id of the category
* @return The ltv,lt,lb of the category
*/
function getEModeCategoryCollateralConfig(
uint8 id
) external view returns (DataTypes.CollateralConfig memory);
/**
* @notice Returns the collateralBitmap of an eMode category
* @param id The id of the category
* @return The collateralBitmap of the category
*/
function getEModeCategoryCollateralBitmap(uint8 id) external view returns (uint128);
/**
* @notice Returns the borrowableBitmap of an eMode category
* @param id The id of the category
* @return The borrowableBitmap of the category
*/
function getEModeCategoryBorrowableBitmap(uint8 id) external view returns (uint128);
/**
* @notice Allows a user to use the protocol in eMode
* @param categoryId The id of the category
*/
function setUserEMode(uint8 categoryId) external;
/**
* @notice Returns the eMode the user is using
* @param user The address of the user
* @return The eMode id
*/
function getUserEMode(address user) external view returns (uint256);
/**
* @notice Resets the isolation mode total debt of the given asset to zero
* @dev It requires the given asset has zero debt ceiling
* @param asset The address of the underlying asset to reset the isolationModeTotalDebt
*/
function resetIsolationModeTotalDebt(address asset) external;
/**
* @notice Sets the liquidation grace period of the given asset
* @dev To enable a liquidation grace period, a timestamp in the future should be set,
* To disable a liquidation grace period, any timestamp in the past works, like 0
* @param asset The address of the underlying asset to set the liquidationGracePeriod
* @param until Timestamp when the liquidation grace period will end
**/
function setLiquidationGracePeriod(address asset, uint40 until) external;
/**
* @notice Returns the liquidation grace period of the given asset
* @param asset The address of the underlying asset
* @return Timestamp when the liquidation grace period will end
**/
function getLiquidationGracePeriod(address asset) external returns (uint40);
/**
* @notice Returns the total fee on flash loans
* @return The total fee on flashloans
*/
function FLASHLOAN_PREMIUM_TOTAL() external view returns (uint128);
/**
* @notice Returns the part of the bridge fees sent to protocol
* @return The bridge fee sent to the protocol treasury
*/
function BRIDGE_PROTOCOL_FEE() external view returns (uint256);
/**
* @notice Returns the part of the flashloan fees sent to protocol
* @return The flashloan fee sent to the protocol treasury
*/
function FLASHLOAN_PREMIUM_TO_PROTOCOL() external view returns (uint128);
/**
* @notice Returns the maximum number of reserves supported to be listed in this Pool
* @return The maximum number of reserves supported
*/
function MAX_NUMBER_RESERVES() external view returns (uint16);
/**
* @notice Mints the assets accrued through the reserve factor to the treasury in the form of aTokens
* @param assets The list of reserves for which the minting needs to be executed
*/
function mintToTreasury(address[] calldata assets) external;
/**
* @notice Rescue and transfer tokens locked in this contract
* @param token The address of the token
* @param to The address of the recipient
* @param amount The amount of token to transfer
*/
function rescueTokens(address token, address to, uint256 amount) external;
/**
* @notice Supplies an `amount` of underlying asset into the reserve, receiving in return overlying aTokens.
* - E.g. User supplies 100 USDC and gets in return 100 aUSDC
* @dev Deprecated: Use the `supply` function instead
* @param asset The address of the underlying asset to supply
* @param amount The amount to be supplied
* @param onBehalfOf The address that will receive the aTokens, same as msg.sender if the user
* wants to receive them on his own wallet, or a different address if the beneficiary of aTokens
* is a different wallet
* @param referralCode Code used to register the integrator originating the operation, for potential rewards.
* 0 if the action is executed directly by the user, without any middle-man
*/
function deposit(address asset, uint256 amount, address onBehalfOf, uint16 referralCode) external;
/**
* @notice Gets the address of the external FlashLoanLogic
*/
function getFlashLoanLogic() external view returns (address);
/**
* @notice Gets the address of the external BorrowLogic
*/
function getBorrowLogic() external view returns (address);
/**
* @notice Gets the address of the external BridgeLogic
*/
function getBridgeLogic() external view returns (address);
/**
* @notice Gets the address of the external EModeLogic
*/
function getEModeLogic() external view returns (address);
/**
* @notice Gets the address of the external LiquidationLogic
*/
function getLiquidationLogic() external view returns (address);
/**
* @notice Gets the address of the external PoolLogic
*/
function getPoolLogic() external view returns (address);
/**
* @notice Gets the address of the external SupplyLogic
*/
function getSupplyLogic() external view returns (address);
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @title IPoolAddressesProvider
* @author Aave
* @notice Defines the basic interface for a Pool Addresses Provider.
*/
interface IPoolAddressesProvider {
/**
* @dev Emitted when the market identifier is updated.
* @param oldMarketId The old id of the market
* @param newMarketId The new id of the market
*/
event MarketIdSet(string indexed oldMarketId, string indexed newMarketId);
/**
* @dev Emitted when the pool is updated.
* @param oldAddress The old address of the Pool
* @param newAddress The new address of the Pool
*/
event PoolUpdated(address indexed oldAddress, address indexed newAddress);
/**
* @dev Emitted when the pool configurator is updated.
* @param oldAddress The old address of the PoolConfigurator
* @param newAddress The new address of the PoolConfigurator
*/
event PoolConfiguratorUpdated(address indexed oldAddress, address indexed newAddress);
/**
* @dev Emitted when the price oracle is updated.
* @param oldAddress The old address of the PriceOracle
* @param newAddress The new address of the PriceOracle
*/
event PriceOracleUpdated(address indexed oldAddress, address indexed newAddress);
/**
* @dev Emitted when the ACL manager is updated.
* @param oldAddress The old address of the ACLManager
* @param newAddress The new address of the ACLManager
*/
event ACLManagerUpdated(address indexed oldAddress, address indexed newAddress);
/**
* @dev Emitted when the ACL admin is updated.
* @param oldAddress The old address of the ACLAdmin
* @param newAddress The new address of the ACLAdmin
*/
event ACLAdminUpdated(address indexed oldAddress, address indexed newAddress);
/**
* @dev Emitted when the price oracle sentinel is updated.
* @param oldAddress The old address of the PriceOracleSentinel
* @param newAddress The new address of the PriceOracleSentinel
*/
event PriceOracleSentinelUpdated(address indexed oldAddress, address indexed newAddress);
/**
* @dev Emitted when the pool data provider is updated.
* @param oldAddress The old address of the PoolDataProvider
* @param newAddress The new address of the PoolDataProvider
*/
event PoolDataProviderUpdated(address indexed oldAddress, address indexed newAddress);
/**
* @dev Emitted when a new proxy is created.
* @param id The identifier of the proxy
* @param proxyAddress The address of the created proxy contract
* @param implementationAddress The address of the implementation contract
*/
event ProxyCreated(
bytes32 indexed id,
address indexed proxyAddress,
address indexed implementationAddress
);
/**
* @dev Emitted when a new non-proxied contract address is registered.
* @param id The identifier of the contract
* @param oldAddress The address of the old contract
* @param newAddress The address of the new contract
*/
event AddressSet(bytes32 indexed id, address indexed oldAddress, address indexed newAddress);
/**
* @dev Emitted when the implementation of the proxy registered with id is updated
* @param id The identifier of the contract
* @param proxyAddress The address of the proxy contract
* @param oldImplementationAddress The address of the old implementation contract
* @param newImplementationAddress The address of the new implementation contract
*/
event AddressSetAsProxy(
bytes32 indexed id,
address indexed proxyAddress,
address oldImplementationAddress,
address indexed newImplementationAddress
);
/**
* @notice Returns the id of the Aave market to which this contract points to.
* @return The market id
*/
function getMarketId() external view returns (string memory);
/**
* @notice Associates an id with a specific PoolAddressesProvider.
* @dev This can be used to create an onchain registry of PoolAddressesProviders to
* identify and validate multiple Aave markets.
* @param newMarketId The market id
*/
function setMarketId(string calldata newMarketId) external;
/**
* @notice Returns an address by its identifier.
* @dev The returned address might be an EOA or a contract, potentially proxied
* @dev It returns ZERO if there is no registered address with the given id
* @param id The id
* @return The address of the registered for the specified id
*/
function getAddress(bytes32 id) external view returns (address);
/**
* @notice General function to update the implementation of a proxy registered with
* certain `id`. If there is no proxy registered, it will instantiate one and
* set as implementation the `newImplementationAddress`.
* @dev IMPORTANT Use this function carefully, only for ids that don't have an explicit
* setter function, in order to avoid unexpected consequences
* @param id The id
* @param newImplementationAddress The address of the new implementation
*/
function setAddressAsProxy(bytes32 id, address newImplementationAddress) external;
/**
* @notice Sets an address for an id replacing the address saved in the addresses map.
* @dev IMPORTANT Use this function carefully, as it will do a hard replacement
* @param id The id
* @param newAddress The address to set
*/
function setAddress(bytes32 id, address newAddress) external;
/**
* @notice Returns the address of the Pool proxy.
* @return The Pool proxy address
*/
function getPool() external view returns (address);
/**
* @notice Updates the implementation of the Pool, or creates a proxy
* setting the new `pool` implementation when the function is called for the first time.
* @param newPoolImpl The new Pool implementation
*/
function setPoolImpl(address newPoolImpl) external;
/**
* @notice Returns the address of the PoolConfigurator proxy.
* @return The PoolConfigurator proxy address
*/
function getPoolConfigurator() external view returns (address);
/**
* @notice Updates the implementation of the PoolConfigurator, or creates a proxy
* setting the new `PoolConfigurator` implementation when the function is called for the first time.
* @param newPoolConfiguratorImpl The new PoolConfigurator implementation
*/
function setPoolConfiguratorImpl(address newPoolConfiguratorImpl) external;
/**
* @notice Returns the address of the price oracle.
* @return The address of the PriceOracle
*/
function getPriceOracle() external view returns (address);
/**
* @notice Updates the address of the price oracle.
* @param newPriceOracle The address of the new PriceOracle
*/
function setPriceOracle(address newPriceOracle) external;
/**
* @notice Returns the address of the ACL manager.
* @return The address of the ACLManager
*/
function getACLManager() external view returns (address);
/**
* @notice Updates the address of the ACL manager.
* @param newAclManager The address of the new ACLManager
*/
function setACLManager(address newAclManager) external;
/**
* @notice Returns the address of the ACL admin.
* @return The address of the ACL admin
*/
function getACLAdmin() external view returns (address);
/**
* @notice Updates the address of the ACL admin.
* @param newAclAdmin The address of the new ACL admin
*/
function setACLAdmin(address newAclAdmin) external;
/**
* @notice Returns the address of the price oracle sentinel.
* @return The address of the PriceOracleSentinel
*/
function getPriceOracleSentinel() external view returns (address);
/**
* @notice Updates the address of the price oracle sentinel.
* @param newPriceOracleSentinel The address of the new PriceOracleSentinel
*/
function setPriceOracleSentinel(address newPriceOracleSentinel) external;
/**
* @notice Returns the address of the data provider.
* @return The address of the DataProvider
*/
function getPoolDataProvider() external view returns (address);
/**
* @notice Updates the address of the data provider.
* @param newDataProvider The address of the new DataProvider
*/
function setPoolDataProvider(address newDataProvider) external;
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @title IScaledBalanceToken
* @author Aave
* @notice Defines the basic interface for a scaled-balance token.
*/
interface IScaledBalanceToken {
/**
* @dev Emitted after the mint action
* @param caller The address performing the mint
* @param onBehalfOf The address of the user that will receive the minted tokens
* @param value The scaled-up amount being minted (based on user entered amount and balance increase from interest)
* @param balanceIncrease The increase in scaled-up balance since the last action of 'onBehalfOf'
* @param index The next liquidity index of the reserve
*/
event Mint(
address indexed caller,
address indexed onBehalfOf,
uint256 value,
uint256 balanceIncrease,
uint256 index
);
/**
* @dev Emitted after the burn action
* @dev If the burn function does not involve a transfer of the underlying asset, the target defaults to zero address
* @param from The address from which the tokens will be burned
* @param target The address that will receive the underlying, if any
* @param value The scaled-up amount being burned (user entered amount - balance increase from interest)
* @param balanceIncrease The increase in scaled-up balance since the last action of 'from'
* @param index The next liquidity index of the reserve
*/
event Burn(
address indexed from,
address indexed target,
uint256 value,
uint256 balanceIncrease,
uint256 index
);
/**
* @notice Returns the scaled balance of the user.
* @dev The scaled balance is the sum of all the updated stored balance divided by the reserve's liquidity index
* at the moment of the update
* @param user The user whose balance is calculated
* @return The scaled balance of the user
*/
function scaledBalanceOf(address user) external view returns (uint256);
/**
* @notice Returns the scaled balance of the user and the scaled total supply.
* @param user The address of the user
* @return The scaled balance of the user
* @return The scaled total supply
*/
function getScaledUserBalanceAndSupply(address user) external view returns (uint256, uint256);
/**
* @notice Returns the scaled total supply of the scaled balance token. Represents sum(debt/index)
* @return The scaled total supply
*/
function scaledTotalSupply() external view returns (uint256);
/**
* @notice Returns last index interest was accrued to the user's balance
* @param user The address of the user
* @return The last index interest was accrued to the user's balance, expressed in ray
*/
function getPreviousIndex(address user) external view returns (uint256);
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface IWETH {
function deposit() external payable;
function withdraw(uint256) external;
function approve(address guy, uint256 wad) external returns (bool);
function transferFrom(address src, address dst, uint256 wad) external returns (bool);
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.10;
interface IWrappedTokenGatewayV3 {
function depositETH(address pool, address onBehalfOf, uint16 referralCode) external payable;
function withdrawETH(address pool, uint256 amount, address onBehalfOf) external;
function repayETH(address pool, uint256 amount, address onBehalfOf) external payable;
function borrowETH(address pool, uint256 amount, uint16 referralCode) external;
function withdrawETHWithPermit(
address pool,
uint256 amount,
address to,
uint256 deadline,
uint8 permitV,
bytes32 permitR,
bytes32 permitS
) external;
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.10;
import './Context.sol';
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(_owner == _msgSender(), 'Ownable: caller is not the owner');
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), 'Ownable: new owner is the zero address');
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {Errors} from '../helpers/Errors.sol';
import {DataTypes} from '../types/DataTypes.sol';
/**
* @title ReserveConfiguration library
* @author Aave
* @notice Implements the bitmap logic to handle the reserve configuration
*/
library ReserveConfiguration {
uint256 internal constant LTV_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000; // prettier-ignore
uint256 internal constant LIQUIDATION_THRESHOLD_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000FFFF; // prettier-ignore
uint256 internal constant LIQUIDATION_BONUS_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000FFFFFFFF; // prettier-ignore
uint256 internal constant DECIMALS_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00FFFFFFFFFFFF; // prettier-ignore
uint256 internal constant ACTIVE_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFF; // prettier-ignore
uint256 internal constant FROZEN_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFDFFFFFFFFFFFFFF; // prettier-ignore
uint256 internal constant BORROWING_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFBFFFFFFFFFFFFFF; // prettier-ignore
// @notice there is an unoccupied hole of 1 bit at position 59 from pre 3.2 stableBorrowRateEnabled
uint256 internal constant PAUSED_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFF; // prettier-ignore
uint256 internal constant BORROWABLE_IN_ISOLATION_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFDFFFFFFFFFFFFFFF; // prettier-ignore
uint256 internal constant SILOED_BORROWING_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFBFFFFFFFFFFFFFFF; // prettier-ignore
uint256 internal constant FLASHLOAN_ENABLED_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFFFFFFFFFF; // prettier-ignore
uint256 internal constant RESERVE_FACTOR_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000FFFFFFFFFFFFFFFF; // prettier-ignore
uint256 internal constant BORROW_CAP_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000FFFFFFFFFFFFFFFFFFFF; // prettier-ignore
uint256 internal constant SUPPLY_CAP_MASK = 0xFFFFFFFFFFFFFFFFFFFFFFFFFF000000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFF; // prettier-ignore
uint256 internal constant LIQUIDATION_PROTOCOL_FEE_MASK = 0xFFFFFFFFFFFFFFFFFFFFFF0000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF; // prettier-ignore
// @notice there is an unoccupied hole of 8 bits from 168 to 176 left from pre 3.2 eModeCategory
uint256 internal constant UNBACKED_MINT_CAP_MASK = 0xFFFFFFFFFFF000000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF; // prettier-ignore
uint256 internal constant DEBT_CEILING_MASK = 0xF0000000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF; // prettier-ignore
uint256 internal constant VIRTUAL_ACC_ACTIVE_MASK = 0xEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF; // prettier-ignore
/// @dev For the LTV, the start bit is 0 (up to 15), hence no bitshifting is needed
uint256 internal constant LIQUIDATION_THRESHOLD_START_BIT_POSITION = 16;
uint256 internal constant LIQUIDATION_BONUS_START_BIT_POSITION = 32;
uint256 internal constant RESERVE_DECIMALS_START_BIT_POSITION = 48;
uint256 internal constant IS_ACTIVE_START_BIT_POSITION = 56;
uint256 internal constant IS_FROZEN_START_BIT_POSITION = 57;
uint256 internal constant BORROWING_ENABLED_START_BIT_POSITION = 58;
uint256 internal constant IS_PAUSED_START_BIT_POSITION = 60;
uint256 internal constant BORROWABLE_IN_ISOLATION_START_BIT_POSITION = 61;
uint256 internal constant SILOED_BORROWING_START_BIT_POSITION = 62;
uint256 internal constant FLASHLOAN_ENABLED_START_BIT_POSITION = 63;
uint256 internal constant RESERVE_FACTOR_START_BIT_POSITION = 64;
uint256 internal constant BORROW_CAP_START_BIT_POSITION = 80;
uint256 internal constant SUPPLY_CAP_START_BIT_POSITION = 116;
uint256 internal constant LIQUIDATION_PROTOCOL_FEE_START_BIT_POSITION = 152;
//@notice there is an unoccupied hole of 8 bits from 168 to 176 left from pre 3.2 eModeCategory
uint256 internal constant UNBACKED_MINT_CAP_START_BIT_POSITION = 176;
uint256 internal constant DEBT_CEILING_START_BIT_POSITION = 212;
uint256 internal constant VIRTUAL_ACC_START_BIT_POSITION = 252;
uint256 internal constant MAX_VALID_LTV = 65535;
uint256 internal constant MAX_VALID_LIQUIDATION_THRESHOLD = 65535;
uint256 internal constant MAX_VALID_LIQUIDATION_BONUS = 65535;
uint256 internal constant MAX_VALID_DECIMALS = 255;
uint256 internal constant MAX_VALID_RESERVE_FACTOR = 65535;
uint256 internal constant MAX_VALID_BORROW_CAP = 68719476735;
uint256 internal constant MAX_VALID_SUPPLY_CAP = 68719476735;
uint256 internal constant MAX_VALID_LIQUIDATION_PROTOCOL_FEE = 65535;
uint256 internal constant MAX_VALID_UNBACKED_MINT_CAP = 68719476735;
uint256 internal constant MAX_VALID_DEBT_CEILING = 1099511627775;
uint256 public constant DEBT_CEILING_DECIMALS = 2;
uint16 public constant MAX_RESERVES_COUNT = 128;
/**
* @notice Sets the Loan to Value of the reserve
* @param self The reserve configuration
* @param ltv The new ltv
*/
function setLtv(DataTypes.ReserveConfigurationMap memory self, uint256 ltv) internal pure {
require(ltv <= MAX_VALID_LTV, Errors.INVALID_LTV);
self.data = (self.data & LTV_MASK) | ltv;
}
/**
* @notice Gets the Loan to Value of the reserve
* @param self The reserve configuration
* @return The loan to value
*/
function getLtv(DataTypes.ReserveConfigurationMap memory self) internal pure returns (uint256) {
return self.data & ~LTV_MASK;
}
/**
* @notice Sets the liquidation threshold of the reserve
* @param self The reserve configuration
* @param threshold The new liquidation threshold
*/
function setLiquidationThreshold(
DataTypes.ReserveConfigurationMap memory self,
uint256 threshold
) internal pure {
require(threshold <= MAX_VALID_LIQUIDATION_THRESHOLD, Errors.INVALID_LIQ_THRESHOLD);
self.data =
(self.data & LIQUIDATION_THRESHOLD_MASK) |
(threshold << LIQUIDATION_THRESHOLD_START_BIT_POSITION);
}
/**
* @notice Gets the liquidation threshold of the reserve
* @param self The reserve configuration
* @return The liquidation threshold
*/
function getLiquidationThreshold(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (uint256) {
return (self.data & ~LIQUIDATION_THRESHOLD_MASK) >> LIQUIDATION_THRESHOLD_START_BIT_POSITION;
}
/**
* @notice Sets the liquidation bonus of the reserve
* @param self The reserve configuration
* @param bonus The new liquidation bonus
*/
function setLiquidationBonus(
DataTypes.ReserveConfigurationMap memory self,
uint256 bonus
) internal pure {
require(bonus <= MAX_VALID_LIQUIDATION_BONUS, Errors.INVALID_LIQ_BONUS);
self.data =
(self.data & LIQUIDATION_BONUS_MASK) |
(bonus << LIQUIDATION_BONUS_START_BIT_POSITION);
}
/**
* @notice Gets the liquidation bonus of the reserve
* @param self The reserve configuration
* @return The liquidation bonus
*/
function getLiquidationBonus(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (uint256) {
return (self.data & ~LIQUIDATION_BONUS_MASK) >> LIQUIDATION_BONUS_START_BIT_POSITION;
}
/**
* @notice Sets the decimals of the underlying asset of the reserve
* @param self The reserve configuration
* @param decimals The decimals
*/
function setDecimals(
DataTypes.ReserveConfigurationMap memory self,
uint256 decimals
) internal pure {
require(decimals <= MAX_VALID_DECIMALS, Errors.INVALID_DECIMALS);
self.data = (self.data & DECIMALS_MASK) | (decimals << RESERVE_DECIMALS_START_BIT_POSITION);
}
/**
* @notice Gets the decimals of the underlying asset of the reserve
* @param self The reserve configuration
* @return The decimals of the asset
*/
function getDecimals(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (uint256) {
return (self.data & ~DECIMALS_MASK) >> RESERVE_DECIMALS_START_BIT_POSITION;
}
/**
* @notice Sets the active state of the reserve
* @param self The reserve configuration
* @param active The active state
*/
function setActive(DataTypes.ReserveConfigurationMap memory self, bool active) internal pure {
self.data =
(self.data & ACTIVE_MASK) |
(uint256(active ? 1 : 0) << IS_ACTIVE_START_BIT_POSITION);
}
/**
* @notice Gets the active state of the reserve
* @param self The reserve configuration
* @return The active state
*/
function getActive(DataTypes.ReserveConfigurationMap memory self) internal pure returns (bool) {
return (self.data & ~ACTIVE_MASK) != 0;
}
/**
* @notice Sets the frozen state of the reserve
* @param self The reserve configuration
* @param frozen The frozen state
*/
function setFrozen(DataTypes.ReserveConfigurationMap memory self, bool frozen) internal pure {
self.data =
(self.data & FROZEN_MASK) |
(uint256(frozen ? 1 : 0) << IS_FROZEN_START_BIT_POSITION);
}
/**
* @notice Gets the frozen state of the reserve
* @param self The reserve configuration
* @return The frozen state
*/
function getFrozen(DataTypes.ReserveConfigurationMap memory self) internal pure returns (bool) {
return (self.data & ~FROZEN_MASK) != 0;
}
/**
* @notice Sets the paused state of the reserve
* @param self The reserve configuration
* @param paused The paused state
*/
function setPaused(DataTypes.ReserveConfigurationMap memory self, bool paused) internal pure {
self.data =
(self.data & PAUSED_MASK) |
(uint256(paused ? 1 : 0) << IS_PAUSED_START_BIT_POSITION);
}
/**
* @notice Gets the paused state of the reserve
* @param self The reserve configuration
* @return The paused state
*/
function getPaused(DataTypes.ReserveConfigurationMap memory self) internal pure returns (bool) {
return (self.data & ~PAUSED_MASK) != 0;
}
/**
* @notice Sets the borrowable in isolation flag for the reserve.
* @dev When this flag is set to true, the asset will be borrowable against isolated collaterals and the borrowed
* amount will be accumulated in the isolated collateral's total debt exposure.
* @dev Only assets of the same family (eg USD stablecoins) should be borrowable in isolation mode to keep
* consistency in the debt ceiling calculations.
* @param self The reserve configuration
* @param borrowable True if the asset is borrowable
*/
function setBorrowableInIsolation(
DataTypes.ReserveConfigurationMap memory self,
bool borrowable
) internal pure {
self.data =
(self.data & BORROWABLE_IN_ISOLATION_MASK) |
(uint256(borrowable ? 1 : 0) << BORROWABLE_IN_ISOLATION_START_BIT_POSITION);
}
/**
* @notice Gets the borrowable in isolation flag for the reserve.
* @dev If the returned flag is true, the asset is borrowable against isolated collateral. Assets borrowed with
* isolated collateral is accounted for in the isolated collateral's total debt exposure.
* @dev Only assets of the same family (eg USD stablecoins) should be borrowable in isolation mode to keep
* consistency in the debt ceiling calculations.
* @param self The reserve configuration
* @return The borrowable in isolation flag
*/
function getBorrowableInIsolation(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (bool) {
return (self.data & ~BORROWABLE_IN_ISOLATION_MASK) != 0;
}
/**
* @notice Sets the siloed borrowing flag for the reserve.
* @dev When this flag is set to true, users borrowing this asset will not be allowed to borrow any other asset.
* @param self The reserve configuration
* @param siloed True if the asset is siloed
*/
function setSiloedBorrowing(
DataTypes.ReserveConfigurationMap memory self,
bool siloed
) internal pure {
self.data =
(self.data & SILOED_BORROWING_MASK) |
(uint256(siloed ? 1 : 0) << SILOED_BORROWING_START_BIT_POSITION);
}
/**
* @notice Gets the siloed borrowing flag for the reserve.
* @dev When this flag is set to true, users borrowing this asset will not be allowed to borrow any other asset.
* @param self The reserve configuration
* @return The siloed borrowing flag
*/
function getSiloedBorrowing(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (bool) {
return (self.data & ~SILOED_BORROWING_MASK) != 0;
}
/**
* @notice Enables or disables borrowing on the reserve
* @param self The reserve configuration
* @param enabled True if the borrowing needs to be enabled, false otherwise
*/
function setBorrowingEnabled(
DataTypes.ReserveConfigurationMap memory self,
bool enabled
) internal pure {
self.data =
(self.data & BORROWING_MASK) |
(uint256(enabled ? 1 : 0) << BORROWING_ENABLED_START_BIT_POSITION);
}
/**
* @notice Gets the borrowing state of the reserve
* @param self The reserve configuration
* @return The borrowing state
*/
function getBorrowingEnabled(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (bool) {
return (self.data & ~BORROWING_MASK) != 0;
}
/**
* @notice Sets the reserve factor of the reserve
* @param self The reserve configuration
* @param reserveFactor The reserve factor
*/
function setReserveFactor(
DataTypes.ReserveConfigurationMap memory self,
uint256 reserveFactor
) internal pure {
require(reserveFactor <= MAX_VALID_RESERVE_FACTOR, Errors.INVALID_RESERVE_FACTOR);
self.data =
(self.data & RESERVE_FACTOR_MASK) |
(reserveFactor << RESERVE_FACTOR_START_BIT_POSITION);
}
/**
* @notice Gets the reserve factor of the reserve
* @param self The reserve configuration
* @return The reserve factor
*/
function getReserveFactor(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (uint256) {
return (self.data & ~RESERVE_FACTOR_MASK) >> RESERVE_FACTOR_START_BIT_POSITION;
}
/**
* @notice Sets the borrow cap of the reserve
* @param self The reserve configuration
* @param borrowCap The borrow cap
*/
function setBorrowCap(
DataTypes.ReserveConfigurationMap memory self,
uint256 borrowCap
) internal pure {
require(borrowCap <= MAX_VALID_BORROW_CAP, Errors.INVALID_BORROW_CAP);
self.data = (self.data & BORROW_CAP_MASK) | (borrowCap << BORROW_CAP_START_BIT_POSITION);
}
/**
* @notice Gets the borrow cap of the reserve
* @param self The reserve configuration
* @return The borrow cap
*/
function getBorrowCap(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (uint256) {
return (self.data & ~BORROW_CAP_MASK) >> BORROW_CAP_START_BIT_POSITION;
}
/**
* @notice Sets the supply cap of the reserve
* @param self The reserve configuration
* @param supplyCap The supply cap
*/
function setSupplyCap(
DataTypes.ReserveConfigurationMap memory self,
uint256 supplyCap
) internal pure {
require(supplyCap <= MAX_VALID_SUPPLY_CAP, Errors.INVALID_SUPPLY_CAP);
self.data = (self.data & SUPPLY_CAP_MASK) | (supplyCap << SUPPLY_CAP_START_BIT_POSITION);
}
/**
* @notice Gets the supply cap of the reserve
* @param self The reserve configuration
* @return The supply cap
*/
function getSupplyCap(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (uint256) {
return (self.data & ~SUPPLY_CAP_MASK) >> SUPPLY_CAP_START_BIT_POSITION;
}
/**
* @notice Sets the debt ceiling in isolation mode for the asset
* @param self The reserve configuration
* @param ceiling The maximum debt ceiling for the asset
*/
function setDebtCeiling(
DataTypes.ReserveConfigurationMap memory self,
uint256 ceiling
) internal pure {
require(ceiling <= MAX_VALID_DEBT_CEILING, Errors.INVALID_DEBT_CEILING);
self.data = (self.data & DEBT_CEILING_MASK) | (ceiling << DEBT_CEILING_START_BIT_POSITION);
}
/**
* @notice Gets the debt ceiling for the asset if the asset is in isolation mode
* @param self The reserve configuration
* @return The debt ceiling (0 = isolation mode disabled)
*/
function getDebtCeiling(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (uint256) {
return (self.data & ~DEBT_CEILING_MASK) >> DEBT_CEILING_START_BIT_POSITION;
}
/**
* @notice Sets the liquidation protocol fee of the reserve
* @param self The reserve configuration
* @param liquidationProtocolFee The liquidation protocol fee
*/
function setLiquidationProtocolFee(
DataTypes.ReserveConfigurationMap memory self,
uint256 liquidationProtocolFee
) internal pure {
require(
liquidationProtocolFee <= MAX_VALID_LIQUIDATION_PROTOCOL_FEE,
Errors.INVALID_LIQUIDATION_PROTOCOL_FEE
);
self.data =
(self.data & LIQUIDATION_PROTOCOL_FEE_MASK) |
(liquidationProtocolFee << LIQUIDATION_PROTOCOL_FEE_START_BIT_POSITION);
}
/**
* @dev Gets the liquidation protocol fee
* @param self The reserve configuration
* @return The liquidation protocol fee
*/
function getLiquidationProtocolFee(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (uint256) {
return
(self.data & ~LIQUIDATION_PROTOCOL_FEE_MASK) >> LIQUIDATION_PROTOCOL_FEE_START_BIT_POSITION;
}
/**
* @notice Sets the unbacked mint cap of the reserve
* @param self The reserve configuration
* @param unbackedMintCap The unbacked mint cap
*/
function setUnbackedMintCap(
DataTypes.ReserveConfigurationMap memory self,
uint256 unbackedMintCap
) internal pure {
require(unbackedMintCap <= MAX_VALID_UNBACKED_MINT_CAP, Errors.INVALID_UNBACKED_MINT_CAP);
self.data =
(self.data & UNBACKED_MINT_CAP_MASK) |
(unbackedMintCap << UNBACKED_MINT_CAP_START_BIT_POSITION);
}
/**
* @dev Gets the unbacked mint cap of the reserve
* @param self The reserve configuration
* @return The unbacked mint cap
*/
function getUnbackedMintCap(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (uint256) {
return (self.data & ~UNBACKED_MINT_CAP_MASK) >> UNBACKED_MINT_CAP_START_BIT_POSITION;
}
/**
* @notice Sets the flashloanable flag for the reserve
* @param self The reserve configuration
* @param flashLoanEnabled True if the asset is flashloanable, false otherwise
*/
function setFlashLoanEnabled(
DataTypes.ReserveConfigurationMap memory self,
bool flashLoanEnabled
) internal pure {
self.data =
(self.data & FLASHLOAN_ENABLED_MASK) |
(uint256(flashLoanEnabled ? 1 : 0) << FLASHLOAN_ENABLED_START_BIT_POSITION);
}
/**
* @notice Gets the flashloanable flag for the reserve
* @param self The reserve configuration
* @return The flashloanable flag
*/
function getFlashLoanEnabled(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (bool) {
return (self.data & ~FLASHLOAN_ENABLED_MASK) != 0;
}
/**
* @notice Sets the virtual account active/not state of the reserve
* @param self The reserve configuration
* @param active The active state
*/
function setVirtualAccActive(
DataTypes.ReserveConfigurationMap memory self,
bool active
) internal pure {
self.data =
(self.data & VIRTUAL_ACC_ACTIVE_MASK) |
(uint256(active ? 1 : 0) << VIRTUAL_ACC_START_BIT_POSITION);
}
/**
* @notice Gets the virtual account active/not state of the reserve
* @dev The state should be true for all normal assets and should be false
* only in special cases (ex. GHO) where an asset is minted instead of supplied.
* @param self The reserve configuration
* @return The active state
*/
function getIsVirtualAccActive(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (bool) {
return (self.data & ~VIRTUAL_ACC_ACTIVE_MASK) != 0;
}
/**
* @notice Gets the configuration flags of the reserve
* @param self The reserve configuration
* @return The state flag representing active
* @return The state flag representing frozen
* @return The state flag representing borrowing enabled
* @return The state flag representing paused
*/
function getFlags(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (bool, bool, bool, bool) {
uint256 dataLocal = self.data;
return (
(dataLocal & ~ACTIVE_MASK) != 0,
(dataLocal & ~FROZEN_MASK) != 0,
(dataLocal & ~BORROWING_MASK) != 0,
(dataLocal & ~PAUSED_MASK) != 0
);
}
/**
* @notice Gets the configuration parameters of the reserve from storage
* @param self The reserve configuration
* @return The state param representing ltv
* @return The state param representing liquidation threshold
* @return The state param representing liquidation bonus
* @return The state param representing reserve decimals
* @return The state param representing reserve factor
*/
function getParams(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (uint256, uint256, uint256, uint256, uint256) {
uint256 dataLocal = self.data;
return (
dataLocal & ~LTV_MASK,
(dataLocal & ~LIQUIDATION_THRESHOLD_MASK) >> LIQUIDATION_THRESHOLD_START_BIT_POSITION,
(dataLocal & ~LIQUIDATION_BONUS_MASK) >> LIQUIDATION_BONUS_START_BIT_POSITION,
(dataLocal & ~DECIMALS_MASK) >> RESERVE_DECIMALS_START_BIT_POSITION,
(dataLocal & ~RESERVE_FACTOR_MASK) >> RESERVE_FACTOR_START_BIT_POSITION
);
}
/**
* @notice Gets the caps parameters of the reserve from storage
* @param self The reserve configuration
* @return The state param representing borrow cap
* @return The state param representing supply cap.
*/
function getCaps(
DataTypes.ReserveConfigurationMap memory self
) internal pure returns (uint256, uint256) {
uint256 dataLocal = self.data;
return (
(dataLocal & ~BORROW_CAP_MASK) >> BORROW_CAP_START_BIT_POSITION,
(dataLocal & ~SUPPLY_CAP_MASK) >> SUPPLY_CAP_START_BIT_POSITION
);
}
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {Errors} from '../helpers/Errors.sol';
import {DataTypes} from '../types/DataTypes.sol';
import {ReserveConfiguration} from './ReserveConfiguration.sol';
/**
* @title UserConfiguration library
* @author Aave
* @notice Implements the bitmap logic to handle the user configuration
*/
library UserConfiguration {
using ReserveConfiguration for DataTypes.ReserveConfigurationMap;
uint256 internal constant BORROWING_MASK =
0x5555555555555555555555555555555555555555555555555555555555555555;
uint256 internal constant COLLATERAL_MASK =
0xAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA;
/**
* @notice Sets if the user is borrowing the reserve identified by reserveIndex
* @param self The configuration object
* @param reserveIndex The index of the reserve in the bitmap
* @param borrowing True if the user is borrowing the reserve, false otherwise
*/
function setBorrowing(
DataTypes.UserConfigurationMap storage self,
uint256 reserveIndex,
bool borrowing
) internal {
unchecked {
require(reserveIndex < ReserveConfiguration.MAX_RESERVES_COUNT, Errors.INVALID_RESERVE_INDEX);
uint256 bit = 1 << (reserveIndex << 1);
if (borrowing) {
self.data |= bit;
} else {
self.data &= ~bit;
}
}
}
/**
* @notice Sets if the user is using as collateral the reserve identified by reserveIndex
* @param self The configuration object
* @param reserveIndex The index of the reserve in the bitmap
* @param usingAsCollateral True if the user is using the reserve as collateral, false otherwise
*/
function setUsingAsCollateral(
DataTypes.UserConfigurationMap storage self,
uint256 reserveIndex,
bool usingAsCollateral
) internal {
unchecked {
require(reserveIndex < ReserveConfiguration.MAX_RESERVES_COUNT, Errors.INVALID_RESERVE_INDEX);
uint256 bit = 1 << ((reserveIndex << 1) + 1);
if (usingAsCollateral) {
self.data |= bit;
} else {
self.data &= ~bit;
}
}
}
/**
* @notice Returns if a user has been using the reserve for borrowing or as collateral
* @param self The configuration object
* @param reserveIndex The index of the reserve in the bitmap
* @return True if the user has been using a reserve for borrowing or as collateral, false otherwise
*/
function isUsingAsCollateralOrBorrowing(
DataTypes.UserConfigurationMap memory self,
uint256 reserveIndex
) internal pure returns (bool) {
unchecked {
require(reserveIndex < ReserveConfiguration.MAX_RESERVES_COUNT, Errors.INVALID_RESERVE_INDEX);
return (self.data >> (reserveIndex << 1)) & 3 != 0;
}
}
/**
* @notice Validate a user has been using the reserve for borrowing
* @param self The configuration object
* @param reserveIndex The index of the reserve in the bitmap
* @return True if the user has been using a reserve for borrowing, false otherwise
*/
function isBorrowing(
DataTypes.UserConfigurationMap memory self,
uint256 reserveIndex
) internal pure returns (bool) {
unchecked {
require(reserveIndex < ReserveConfiguration.MAX_RESERVES_COUNT, Errors.INVALID_RESERVE_INDEX);
return (self.data >> (reserveIndex << 1)) & 1 != 0;
}
}
/**
* @notice Validate a user has been using the reserve as collateral
* @param self The configuration object
* @param reserveIndex The index of the reserve in the bitmap
* @return True if the user has been using a reserve as collateral, false otherwise
*/
function isUsingAsCollateral(
DataTypes.UserConfigurationMap memory self,
uint256 reserveIndex
) internal pure returns (bool) {
unchecked {
require(reserveIndex < ReserveConfiguration.MAX_RESERVES_COUNT, Errors.INVALID_RESERVE_INDEX);
return (self.data >> ((reserveIndex << 1) + 1)) & 1 != 0;
}
}
/**
* @notice Checks if a user has been supplying only one reserve as collateral
* @dev this uses a simple trick - if a number is a power of two (only one bit set) then n & (n - 1) == 0
* @param self The configuration object
* @return True if the user has been supplying as collateral one reserve, false otherwise
*/
function isUsingAsCollateralOne(
DataTypes.UserConfigurationMap memory self
) internal pure returns (bool) {
uint256 collateralData = self.data & COLLATERAL_MASK;
return collateralData != 0 && (collateralData & (collateralData - 1) == 0);
}
/**
* @notice Checks if a user has been supplying any reserve as collateral
* @param self The configuration object
* @return True if the user has been supplying as collateral any reserve, false otherwise
*/
function isUsingAsCollateralAny(
DataTypes.UserConfigurationMap memory self
) internal pure returns (bool) {
return self.data & COLLATERAL_MASK != 0;
}
/**
* @notice Checks if a user has been borrowing only one asset
* @dev this uses a simple trick - if a number is a power of two (only one bit set) then n & (n - 1) == 0
* @param self The configuration object
* @return True if the user has been supplying as collateral one reserve, false otherwise
*/
function isBorrowingOne(DataTypes.UserConfigurationMap memory self) internal pure returns (bool) {
uint256 borrowingData = self.data & BORROWING_MASK;
return borrowingData != 0 && (borrowingData & (borrowingData - 1) == 0);
}
/**
* @notice Checks if a user has been borrowing from any reserve
* @param self The configuration object
* @return True if the user has been borrowing any reserve, false otherwise
*/
function isBorrowingAny(DataTypes.UserConfigurationMap memory self) internal pure returns (bool) {
return self.data & BORROWING_MASK != 0;
}
/**
* @notice Checks if a user has not been using any reserve for borrowing or supply
* @param self The configuration object
* @return True if the user has not been borrowing or supplying any reserve, false otherwise
*/
function isEmpty(DataTypes.UserConfigurationMap memory self) internal pure returns (bool) {
return self.data == 0;
}
/**
* @notice Returns the Isolation Mode state of the user
* @param self The configuration object
* @param reservesData The state of all the reserves
* @param reservesList The addresses of all the active reserves
* @return True if the user is in isolation mode, false otherwise
* @return The address of the only asset used as collateral
* @return The debt ceiling of the reserve
*/
function getIsolationModeState(
DataTypes.UserConfigurationMap memory self,
mapping(address => DataTypes.ReserveData) storage reservesData,
mapping(uint256 => address) storage reservesList
) internal view returns (bool, address, uint256) {
if (isUsingAsCollateralOne(self)) {
uint256 assetId = _getFirstAssetIdByMask(self, COLLATERAL_MASK);
address assetAddress = reservesList[assetId];
uint256 ceiling = reservesData[assetAddress].configuration.getDebtCeiling();
if (ceiling != 0) {
return (true, assetAddress, ceiling);
}
}
return (false, address(0), 0);
}
/**
* @notice Returns the siloed borrowing state for the user
* @param self The configuration object
* @param reservesData The data of all the reserves
* @param reservesList The reserve list
* @return True if the user has borrowed a siloed asset, false otherwise
* @return The address of the only borrowed asset
*/
function getSiloedBorrowingState(
DataTypes.UserConfigurationMap memory self,
mapping(address => DataTypes.ReserveData) storage reservesData,
mapping(uint256 => address) storage reservesList
) internal view returns (bool, address) {
if (isBorrowingOne(self)) {
uint256 assetId = _getFirstAssetIdByMask(self, BORROWING_MASK);
address assetAddress = reservesList[assetId];
if (reservesData[assetAddress].configuration.getSiloedBorrowing()) {
return (true, assetAddress);
}
}
return (false, address(0));
}
/**
* @notice Returns the address of the first asset flagged in the bitmap given the corresponding bitmask
* @param self The configuration object
* @return The index of the first asset flagged in the bitmap once the corresponding mask is applied
*/
function _getFirstAssetIdByMask(
DataTypes.UserConfigurationMap memory self,
uint256 mask
) internal pure returns (uint256) {
unchecked {
uint256 bitmapData = self.data & mask;
uint256 firstAssetPosition = bitmapData & ~(bitmapData - 1);
uint256 id;
while ((firstAssetPosition >>= 2) != 0) {
id += 1;
}
return id;
}
}
}
// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.10;
import {Ownable} from '../dependencies/openzeppelin/contracts/Ownable.sol';
import {IERC20} from '../dependencies/openzeppelin/contracts/IERC20.sol';
import {GPv2SafeERC20} from '../dependencies/gnosis/contracts/GPv2SafeERC20.sol';
import {IWETH} from './interfaces/IWETH.sol';
import {IPool} from '../interfaces/IPool.sol';
import {IAToken} from '../interfaces/IAToken.sol';
import {ReserveConfiguration} from '../protocol/libraries/configuration/ReserveConfiguration.sol';
import {UserConfiguration} from '../protocol/libraries/configuration/UserConfiguration.sol';
import {DataTypes} from '../protocol/libraries/types/DataTypes.sol';
import {IWrappedTokenGatewayV3} from './interfaces/IWrappedTokenGatewayV3.sol';
/**
* @dev This contract is an upgrade of the WrappedTokenGatewayV3 contract, with immutable pool address.
* This contract keeps the same interface of the deprecated WrappedTokenGatewayV3 contract.
*/
contract WrappedTokenGatewayV3 is IWrappedTokenGatewayV3, Ownable {
using ReserveConfiguration for DataTypes.ReserveConfigurationMap;
using UserConfiguration for DataTypes.UserConfigurationMap;
using GPv2SafeERC20 for IERC20;
IWETH internal immutable WETH;
IPool internal immutable POOL;
/**
* @dev Sets the WETH address and the PoolAddressesProvider address. Infinite approves pool.
* @param weth Address of the Wrapped Ether contract
* @param owner Address of the owner of this contract
**/
constructor(address weth, address owner, IPool pool) {
WETH = IWETH(weth);
POOL = pool;
transferOwnership(owner);
IWETH(weth).approve(address(pool), type(uint256).max);
}
/**
* @dev deposits WETH into the reserve, using native ETH. A corresponding amount of the overlying asset (aTokens)
* is minted.
* @param onBehalfOf address of the user who will receive the aTokens representing the deposit
* @param referralCode integrators are assigned a referral code and can potentially receive rewards.
**/
function depositETH(address, address onBehalfOf, uint16 referralCode) external payable override {
WETH.deposit{value: msg.value}();
POOL.deposit(address(WETH), msg.value, onBehalfOf, referralCode);
}
/**
* @dev withdraws the WETH _reserves of msg.sender.
* @param amount amount of aWETH to withdraw and receive native ETH
* @param to address of the user who will receive native ETH
*/
function withdrawETH(address, uint256 amount, address to) external override {
IAToken aWETH = IAToken(POOL.getReserveData(address(WETH)).aTokenAddress);
uint256 userBalance = aWETH.balanceOf(msg.sender);
uint256 amountToWithdraw = amount;
// if amount is equal to uint(-1), the user wants to redeem everything
if (amount == type(uint256).max) {
amountToWithdraw = userBalance;
}
aWETH.transferFrom(msg.sender, address(this), amountToWithdraw);
POOL.withdraw(address(WETH), amountToWithdraw, address(this));
WETH.withdraw(amountToWithdraw);
_safeTransferETH(to, amountToWithdraw);
}
/**
* @dev repays a borrow on the WETH reserve, for the specified amount (or for the whole amount, if uint256(-1) is specified).
* @param amount the amount to repay, or uint256(-1) if the user wants to repay everything
* @param onBehalfOf the address for which msg.sender is repaying
*/
function repayETH(address, uint256 amount, address onBehalfOf) external payable override {
uint256 paybackAmount = IERC20((POOL.getReserveData(address(WETH))).variableDebtTokenAddress)
.balanceOf(onBehalfOf);
if (amount < paybackAmount) {
paybackAmount = amount;
}
require(msg.value >= paybackAmount, 'msg.value is less than repayment amount');
WETH.deposit{value: paybackAmount}();
POOL.repay(
address(WETH),
paybackAmount,
uint256(DataTypes.InterestRateMode.VARIABLE),
onBehalfOf
);
// refund remaining dust eth
if (msg.value > paybackAmount) _safeTransferETH(msg.sender, msg.value - paybackAmount);
}
/**
* @dev borrow WETH, unwraps to ETH and send both the ETH and DebtTokens to msg.sender, via `approveDelegation` and onBehalf argument in `Pool.borrow`.
* @param amount the amount of ETH to borrow
* @param referralCode integrators are assigned a referral code and can potentially receive rewards
*/
function borrowETH(address, uint256 amount, uint16 referralCode) external override {
POOL.borrow(
address(WETH),
amount,
uint256(DataTypes.InterestRateMode.VARIABLE),
referralCode,
msg.sender
);
WETH.withdraw(amount);
_safeTransferETH(msg.sender, amount);
}
/**
* @dev withdraws the WETH _reserves of msg.sender.
* @param amount amount of aWETH to withdraw and receive native ETH
* @param to address of the user who will receive native ETH
* @param deadline validity deadline of permit and so depositWithPermit signature
* @param permitV V parameter of ERC712 permit sig
* @param permitR R parameter of ERC712 permit sig
* @param permitS S parameter of ERC712 permit sig
*/
function withdrawETHWithPermit(
address,
uint256 amount,
address to,
uint256 deadline,
uint8 permitV,
bytes32 permitR,
bytes32 permitS
) external override {
IAToken aWETH = IAToken(POOL.getReserveData(address(WETH)).aTokenAddress);
uint256 userBalance = aWETH.balanceOf(msg.sender);
uint256 amountToWithdraw = amount;
// if amount is equal to type(uint256).max, the user wants to redeem everything
if (amount == type(uint256).max) {
amountToWithdraw = userBalance;
}
// permit `amount` rather than `amountToWithdraw` to make it easier for front-ends and integrators
aWETH.permit(msg.sender, address(this), amount, deadline, permitV, permitR, permitS);
aWETH.transferFrom(msg.sender, address(this), amountToWithdraw);
POOL.withdraw(address(WETH), amountToWithdraw, address(this));
WETH.withdraw(amountToWithdraw);
_safeTransferETH(to, amountToWithdraw);
}
/**
* @dev transfer ETH to an address, revert if it fails.
* @param to recipient of the transfer
* @param value the amount to send
*/
function _safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'ETH_TRANSFER_FAILED');
}
/**
* @dev transfer ERC20 from the utility contract, for ERC20 recovery in case of stuck tokens due
* direct transfers to the contract address.
* @param token token to transfer
* @param to recipient of the transfer
* @param amount amount to send
*/
function emergencyTokenTransfer(address token, address to, uint256 amount) external onlyOwner {
IERC20(token).safeTransfer(to, amount);
}
/**
* @dev transfer native Ether from the utility contract, for native Ether recovery in case of stuck Ether
* due to selfdestructs or ether transfers to the pre-computed contract address before deployment.
* @param to recipient of the transfer
* @param amount amount to send
*/
function emergencyEtherTransfer(address to, uint256 amount) external onlyOwner {
_safeTransferETH(to, amount);
}
/**
* @dev Get WETH address used by WrappedTokenGatewayV3
*/
function getWETHAddress() external view returns (address) {
return address(WETH);
}
/**
* @dev Only WETH contract is allowed to transfer ETH here. Prevent other addresses to send Ether to this contract.
*/
receive() external payable {
require(msg.sender == address(WETH), 'Receive not allowed');
}
/**
* @dev Revert fallback calls
*/
fallback() external payable {
revert('Fallback not allowed');
}
}
{
"compilationTarget": {
"lib/aave-helpers/lib/aave-address-book/lib/aave-v3-origin/src/contracts/helpers/WrappedTokenGatewayV3.sol": "WrappedTokenGatewayV3"
},
"evmVersion": "shanghai",
"libraries": {
"lib/aave-helpers/lib/aave-address-book/lib/aave-v3-origin/src/contracts/protocol/libraries/logic/BorrowLogic.sol:BorrowLogic": "0x4c52fe2162200bf26c314d7bbd8611699139d553",
"lib/aave-helpers/lib/aave-address-book/lib/aave-v3-origin/src/contracts/protocol/libraries/logic/BridgeLogic.sol:BridgeLogic": "0x97dcbfae5372a63128f141e8c0bc2c871ca5f604",
"lib/aave-helpers/lib/aave-address-book/lib/aave-v3-origin/src/contracts/protocol/libraries/logic/ConfiguratorLogic.sol:ConfiguratorLogic": "0x3a593a622754ed9572599d33aad6d799b0899fae",
"lib/aave-helpers/lib/aave-address-book/lib/aave-v3-origin/src/contracts/protocol/libraries/logic/EModeLogic.sol:EModeLogic": "0x88f864670de467aa73cd45325f9652c578c8ab85",
"lib/aave-helpers/lib/aave-address-book/lib/aave-v3-origin/src/contracts/protocol/libraries/logic/FlashLoanLogic.sol:FlashLoanLogic": "0xb32381fefff45ee9f47fd2f2cf83c832637d6ef0",
"lib/aave-helpers/lib/aave-address-book/lib/aave-v3-origin/src/contracts/protocol/libraries/logic/LiquidationLogic.sol:LiquidationLogic": "0x80d16970b31243fe67dab028115f3e4c3e3510ad",
"lib/aave-helpers/lib/aave-address-book/lib/aave-v3-origin/src/contracts/protocol/libraries/logic/PoolLogic.sol:PoolLogic": "0xa58fb47be9074828215a173564c0cd10f6f249bf",
"lib/aave-helpers/lib/aave-address-book/lib/aave-v3-origin/src/contracts/protocol/libraries/logic/SupplyLogic.sol:SupplyLogic": "0x2b22e425c1322fba0dbf17bb1da25d71811ee7ba"
},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": true,
"runs": 200
},
"remappings": [
":@openzeppelin/contracts-upgradeable/=lib/aave-v3-origin-private/lib/solidity-utils/lib/openzeppelin-contracts-upgradeable/contracts/",
":@openzeppelin/contracts/=lib/aave-v3-origin-private/lib/solidity-utils/lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/contracts/",
":aave-address-book/=lib/aave-helpers/lib/aave-address-book/src/",
":aave-helpers/=lib/aave-helpers/",
":aave-v3-core/=lib/aave-helpers/lib/aave-address-book/lib/aave-v3-origin/src/core/",
":aave-v3-origin-test/=lib/aave-helpers/lib/aave-address-book/lib/aave-v3-origin/test/",
":aave-v3-origin-tests/=lib/aave-helpers/lib/aave-address-book/lib/aave-v3-origin/tests/",
":aave-v3-origin/=lib/aave-helpers/lib/aave-address-book/lib/aave-v3-origin/src/",
":aave-v3-periphery/=lib/aave-helpers/lib/aave-address-book/lib/aave-v3-origin/src/periphery/",
":ds-test/=lib/aave-helpers/lib/aave-address-book/lib/aave-v3-origin/lib/forge-std/lib/ds-test/src/",
":erc4626-tests/=lib/aave-helpers/lib/aave-address-book/lib/aave-v3-origin/lib/solidity-utils/lib/openzeppelin-contracts-upgradeable/lib/erc4626-tests/",
":forge-std/=lib/forge-std/src/",
":openzeppelin-contracts-upgradeable/=lib/aave-helpers/lib/aave-address-book/lib/aave-v3-origin/lib/solidity-utils/lib/openzeppelin-contracts-upgradeable/",
":openzeppelin-contracts/=lib/aave-helpers/lib/aave-address-book/lib/aave-v3-origin/lib/solidity-utils/lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/",
":solidity-utils/=lib/aave-helpers/lib/aave-address-book/lib/aave-v3-origin/lib/solidity-utils/src/"
]
}[{"inputs":[{"internalType":"address","name":"weth","type":"address"},{"internalType":"address","name":"owner","type":"address"},{"internalType":"contract IPool","name":"pool","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint16","name":"referralCode","type":"uint16"}],"name":"borrowETH","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"onBehalfOf","type":"address"},{"internalType":"uint16","name":"referralCode","type":"uint16"}],"name":"depositETH","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"emergencyEtherTransfer","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"emergencyTokenTransfer","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"getWETHAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"address","name":"onBehalfOf","type":"address"}],"name":"repayETH","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"address","name":"to","type":"address"}],"name":"withdrawETH","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"permitV","type":"uint8"},{"internalType":"bytes32","name":"permitR","type":"bytes32"},{"internalType":"bytes32","name":"permitS","type":"bytes32"}],"name":"withdrawETHWithPermit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]