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Contract Name:
MetaCoin
Compiler Version
v0.8.12+commit.f00d7308
Optimization Enabled:
Yes with 200 runs
Other Settings:
london EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT // Tells the Solidity compiler to compile only from v0.8.13 to v0.9.0 pragma solidity =0.8.12; import {AethosClient} from "../mixins/AethosClient.sol"; import {AethosMessage} from "../interfaces/IAethosClient.sol"; // This is just a simple example of a coin-like contract. // It is not ERC20 compatible and cannot be expected to talk to other // coin/token contracts. contract MetaCoin is AethosClient { mapping(address => uint256) public balances; event Transfer(address indexed _from, address indexed _to, uint256 _value); constructor(address owner, address serviceManager) { balances[owner] = 10_000_000_000_000; _setServiceManager(serviceManager); _transferOwnership(owner); } function sendCoin(address receiver, uint256 amount, AethosMessage calldata aethosMessage) public { bytes memory encodedSigAndArgs = abi.encodeWithSignature("_sendCoin(address,uint256)", receiver, amount); require(_authorizeTransaction(aethosMessage, encodedSigAndArgs), "MetaCoin: unauthorized transaction"); // business logic function that is protected _sendCoin(receiver, amount); } // business logic function that is protected function _sendCoin(address receiver, uint256 amount) internal { require(balances[msg.sender] >= amount, "MetaCoin: insufficient balance"); balances[msg.sender] -= amount; balances[receiver] += amount; emit Transfer(msg.sender, receiver, amount); } function getBalance(address addr) public view returns (uint256) { return balances[addr]; } }
// SPDX-License-Identifier: MIT pragma solidity =0.8.12; import {Ownable} from "openzeppelin/access/Ownable.sol"; import {IServiceManager, DTMTaskParams, STMTaskParams} from "../interfaces/IServiceManager.sol"; import {IAethosClient, AethosMessage} from "../interfaces/IAethosClient.sol"; contract AethosClient is IAethosClient, Ownable { error AethosClient__Unauthorized(); IServiceManager public serviceManager; string public policyID; /** * @notice Restricts access to the Aethos service manager. */ modifier onlyAethosServiceManager() { if (msg.sender != address(serviceManager)) { revert AethosClient__Unauthorized(); } _; } /** * @notice Internal function for setting the service manager * @param _serviceManager address of the service manager */ function _setServiceManager(address _serviceManager) internal onlyOwner { serviceManager = IServiceManager(_serviceManager); } /** * @notice External function for submitting task to Aethos Dual Transaction Model * @param _params the params of the task */ function submitTask(DTMTaskParams calldata _params) external { serviceManager.submitTask(_params); } /** * @notice Updates the policy ID. * @param _policyID policy ID from on chain */ function setPolicy(string memory _policyID) external onlyOwner { policyID = _policyID; serviceManager.setPolicy(_policyID); } function _authorizeTransaction( AethosMessage memory _aethosMessage, bytes memory _encodedSigAndArgs ) internal returns (bool) { STMTaskParams memory _taskParams = STMTaskParams({ msgSender: msg.sender, target: address(this), value: msg.value, encodedSigAndArgs: _encodedSigAndArgs, policyID: this.policyID(), quorumThresholdCount: uint32(_aethosMessage.signerAddresses.length), taskId: _aethosMessage.taskId, expireByBlockNumber: _aethosMessage.expireByBlockNumber }); return serviceManager.validateSignaturesSTM(_taskParams, _aethosMessage.signerAddresses, _aethosMessage.signatures); } }
// SPDX-License-Identifier: MIT pragma solidity =0.8.12; import {DTMTaskParams} from "../interfaces/IServiceManager.sol"; struct AethosMessage { string taskId; uint256 expireByBlockNumber; address[] signerAddresses; bytes[] signatures; } interface IAethosClient { /** * @notice Submits a task for execution with specific parameters and a policy defined by its IPFS hash. * @param params A TaskParams struct containing the task parameters including sender, target, function signature, and arguments. * @dev This function allows clients to submit tasks for execution that comply with a predefined policy. * Policies govern the execution rules, ensuring tasks are performed within specified parameters and constraints. */ function submitTask(DTMTaskParams memory params) external; /** * @notice Sets a policy for the calling address, associating it with a policy document stored on IPFS. * @param _policyID A string representing the policyID from on chain. * @dev This function enables clients to define execution rules or parameters for tasks they submit. * The policy governs how tasks submitted by the caller are executed, ensuring compliance with predefined rules. */ function setPolicy(string memory _policyID) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol) pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { _checkOwner(); _; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if the sender is not the owner. */ function _checkOwner() internal view virtual { require(owner() == _msgSender(), "Ownable: caller is not the owner"); } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }
// SPDX-License-Identifier: MIT pragma solidity =0.8.12; import {ISignatureUtils} from "eigenlayer-contracts/src/contracts/interfaces/ISignatureUtils.sol"; import {IDelegationManager} from "eigenlayer-contracts/src/contracts/interfaces/IDelegationManager.sol"; struct DTMTaskParams { address msgSender; address target; bytes4 functionSig; bytes functionArgs; string policyID; uint32 quorumThresholdCount; } struct STMTaskParams { string taskId; address msgSender; address target; uint256 value; bytes encodedSigAndArgs; string policyID; uint32 quorumThresholdCount; uint256 expireByBlockNumber; } /** * @title Minimal interface for a ServiceManager-type contract that forms the single point for an AVS to push updates to EigenLayer * @author Aethos Labs, Inc */ interface IServiceManager { /** * @notice Sets the metadata URI for the AVS * @param _metadataURI is the metadata URI for the AVS */ function setMetadataURI(string memory _metadataURI) external; /** * @notice Forwards a call to EigenLayer's DelegationManager contract to confirm operator registration with the AVS * @param operatorSigningKey The address of the operator's signing key. * @param operatorSignature The signature, salt, and expiry of the operator's signature. */ function registerOperatorToAVS( address operatorSigningKey, ISignatureUtils.SignatureWithSaltAndExpiry memory operatorSignature ) external; /** * @notice Forwards a call to EigenLayer's DelegationManager contract to confirm operator deregistration from the AVS * @param operator The address of the operator to deregister. */ function deregisterOperatorFromAVS(address operator) external; /** * @notice Returns the list of strategies that the operator has potentially restaked on the AVS * @param operator The address of the operator to get restaked strategies for * @dev This function is intended to be called off-chain * @dev No guarantee is made on whether the operator has shares for a strategy in a quorum or uniqueness * of each element in the returned array. The off-chain service should do that validation separately */ function getOperatorRestakedStrategies(address operator) external view returns (address[] memory); /** * @notice Returns the list of strategies that the AVS supports for restaking * @dev This function is intended to be called off-chain * @dev No guarantee is made on uniqueness of each element in the returned array. * The off-chain service should do that validation separately */ function getRestakeableStrategies() external view returns (address[] memory); /** * @notice Sets a policy ID for the sender, defining execution rules or parameters for tasks * @param policyID string pointing to the policy details * @dev Only callable by client contracts or EOAs to associate a policy with their address * @dev Emits a SetPolicy event upon successful association */ function setPolicy(string memory policyID) external; /** * @notice Removes a policy ID for the sender, removing execution rules or parameters for tasks * @param policyID string pointing to the policy details * @dev Only callable by client contracts or EOAs to disassociate a policy with their address * @dev Emits a RemovedPolicy event upon successful association */ function removePolicy(string memory policyID) external; /** * @notice Deploys a policy with ID with execution rules or parameters for tasks * @param _policyID string pointing to the policy details * @param _policy string containing the policy details * @dev Only callable by service manager deployer * @dev Emits a DeployedPolicy event upon successful deployment */ function deployPolicy(string memory _policyID, string memory _policy) external; /** * @notice Gets array of deployed policies */ function getDeployedPolicies() external view returns (string[] memory); /** * @notice Deploys a social graph which clients can use in policy * @param _socialGraphID is a unique identifier * @param _socialGraphConfig is the config for the social graph * @dev Only callable by service manager deployer * @dev Emits a SocialGraphDeployed event upon successful deployment */ function deploySocialGraph(string memory _socialGraphID, string memory _socialGraphConfig) external; /** * @notice Returns the list of social graph IDs that the AVS supports */ function getSocialGraphIDs() external view returns (string[] memory); /** * @notice Submits a new task for execution by the network operators, subject to the specified policy * @param params Struct containing task parameters including sender, target contract, function signature, and arguments * @return taskID A unique identifier for the submitted task * @dev Tasks are validated and executed based on compliance with the associated policy and sufficient operator signatures * @dev Emits a NewTask event upon task submission */ function submitTask(DTMTaskParams memory params) external returns (uint256 taskID); /** * @notice Verifies if a task is authorized by the required number of operators * @param _params Parameters of the task including sender, target, function signature, arguments, quorum count, and expiry block * @param signerAddresses Array of addresses of the operators who signed the task * @param signatures Array of signatures from the operators authorizing the task * @return isVerified Boolean indicating if the task has been verified by the required number of operators * @dev This function checks the signatures against the hash of the task parameters to ensure task authenticity and authorization */ function validateSignaturesSTM( STMTaskParams memory _params, address[] memory signerAddresses, bytes[] memory signatures ) external returns (bool isVerified); /** * @notice Adds a new strategy to the Service Manager * @dev Only callable by the contract owner. Adds a strategy that operators can stake on. * @param _strategy The address of the strategy contract to add * @param quorumNumber The quorum number associated with the strategy * @param index The index of the strategy within the quorum * @dev Emits a StrategyAdded event upon successful addition of the strategy * @dev Reverts if the strategy does not exist or is already added */ function addStrategy(address _strategy, uint8 quorumNumber, uint256 index) external; /** * @notice Removes an existing strategy from the Service Manager * @dev Only callable by the contract owner. Removes a strategy that operators are currently able to stake on. * @param _strategy The address of the strategy contract to remove * @dev Emits a StrategyRemoved event upon successful removal of the strategy * @dev Reverts if the strategy is not currently added or if the address is invalid */ function removeStrategy(address _strategy) external; /** * @notice Enables the rotation of Aethos Signing Key for an operator * @param _oldSigningKey address of the old signing key to remove * @param _newSigningKey address of the new signing key to add */ function rotateAethosSigningKey(address _oldSigningKey, address _newSigningKey) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity >=0.5.0; /** * @title The interface for common signature utilities. * @author Layr Labs, Inc. * @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service */ interface ISignatureUtils { // @notice Struct that bundles together a signature and an expiration time for the signature. Used primarily for stack management. struct SignatureWithExpiry { // the signature itself, formatted as a single bytes object bytes signature; // the expiration timestamp (UTC) of the signature uint256 expiry; } // @notice Struct that bundles together a signature, a salt for uniqueness, and an expiration time for the signature. Used primarily for stack management. struct SignatureWithSaltAndExpiry { // the signature itself, formatted as a single bytes object bytes signature; // the salt used to generate the signature bytes32 salt; // the expiration timestamp (UTC) of the signature uint256 expiry; } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity >=0.5.0; import "./IStrategy.sol"; import "./ISignatureUtils.sol"; import "./IStrategyManager.sol"; /** * @title DelegationManager * @author Layr Labs, Inc. * @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service * @notice This is the contract for delegation in EigenLayer. The main functionalities of this contract are * - enabling anyone to register as an operator in EigenLayer * - allowing operators to specify parameters related to stakers who delegate to them * - enabling any staker to delegate its stake to the operator of its choice (a given staker can only delegate to a single operator at a time) * - enabling a staker to undelegate its assets from the operator it is delegated to (performed as part of the withdrawal process, initiated through the StrategyManager) */ interface IDelegationManager is ISignatureUtils { // @notice Struct used for storing information about a single operator who has registered with EigenLayer struct OperatorDetails { // @notice address to receive the rewards that the operator earns via serving applications built on EigenLayer. address earningsReceiver; /** * @notice Address to verify signatures when a staker wishes to delegate to the operator, as well as controlling "forced undelegations". * @dev Signature verification follows these rules: * 1) If this address is left as address(0), then any staker will be free to delegate to the operator, i.e. no signature verification will be performed. * 2) If this address is an EOA (i.e. it has no code), then we follow standard ECDSA signature verification for delegations to the operator. * 3) If this address is a contract (i.e. it has code) then we forward a call to the contract and verify that it returns the correct EIP-1271 "magic value". */ address delegationApprover; /** * @notice A minimum delay -- measured in blocks -- enforced between: * 1) the operator signalling their intent to register for a service, via calling `Slasher.optIntoSlashing` * and * 2) the operator completing registration for the service, via the service ultimately calling `Slasher.recordFirstStakeUpdate` * @dev note that for a specific operator, this value *cannot decrease*, i.e. if the operator wishes to modify their OperatorDetails, * then they are only allowed to either increase this value or keep it the same. */ uint32 stakerOptOutWindowBlocks; } /** * @notice Abstract struct used in calculating an EIP712 signature for a staker to approve that they (the staker themselves) delegate to a specific operator. * @dev Used in computing the `STAKER_DELEGATION_TYPEHASH` and as a reference in the computation of the stakerDigestHash in the `delegateToBySignature` function. */ struct StakerDelegation { // the staker who is delegating address staker; // the operator being delegated to address operator; // the staker's nonce uint256 nonce; // the expiration timestamp (UTC) of the signature uint256 expiry; } /** * @notice Abstract struct used in calculating an EIP712 signature for an operator's delegationApprover to approve that a specific staker delegate to the operator. * @dev Used in computing the `DELEGATION_APPROVAL_TYPEHASH` and as a reference in the computation of the approverDigestHash in the `_delegate` function. */ struct DelegationApproval { // the staker who is delegating address staker; // the operator being delegated to address operator; // the operator's provided salt bytes32 salt; // the expiration timestamp (UTC) of the signature uint256 expiry; } /** * Struct type used to specify an existing queued withdrawal. Rather than storing the entire struct, only a hash is stored. * In functions that operate on existing queued withdrawals -- e.g. completeQueuedWithdrawal`, the data is resubmitted and the hash of the submitted * data is computed by `calculateWithdrawalRoot` and checked against the stored hash in order to confirm the integrity of the submitted data. */ struct Withdrawal { // The address that originated the Withdrawal address staker; // The address that the staker was delegated to at the time that the Withdrawal was created address delegatedTo; // The address that can complete the Withdrawal + will receive funds when completing the withdrawal address withdrawer; // Nonce used to guarantee that otherwise identical withdrawals have unique hashes uint256 nonce; // Block number when the Withdrawal was created uint32 startBlock; // Array of strategies that the Withdrawal contains IStrategy[] strategies; // Array containing the amount of shares in each Strategy in the `strategies` array uint256[] shares; } struct QueuedWithdrawalParams { // Array of strategies that the QueuedWithdrawal contains IStrategy[] strategies; // Array containing the amount of shares in each Strategy in the `strategies` array uint256[] shares; // The address of the withdrawer address withdrawer; } // @notice Emitted when a new operator registers in EigenLayer and provides their OperatorDetails. event OperatorRegistered(address indexed operator, OperatorDetails operatorDetails); /// @notice Emitted when an operator updates their OperatorDetails to @param newOperatorDetails event OperatorDetailsModified(address indexed operator, OperatorDetails newOperatorDetails); /** * @notice Emitted when @param operator indicates that they are updating their MetadataURI string * @dev Note that these strings are *never stored in storage* and are instead purely emitted in events for off-chain indexing */ event OperatorMetadataURIUpdated(address indexed operator, string metadataURI); /// @notice Emitted whenever an operator's shares are increased for a given strategy. Note that shares is the delta in the operator's shares. event OperatorSharesIncreased(address indexed operator, address staker, IStrategy strategy, uint256 shares); /// @notice Emitted whenever an operator's shares are decreased for a given strategy. Note that shares is the delta in the operator's shares. event OperatorSharesDecreased(address indexed operator, address staker, IStrategy strategy, uint256 shares); /// @notice Emitted when @param staker delegates to @param operator. event StakerDelegated(address indexed staker, address indexed operator); /// @notice Emitted when @param staker undelegates from @param operator. event StakerUndelegated(address indexed staker, address indexed operator); /// @notice Emitted when @param staker is undelegated via a call not originating from the staker themself event StakerForceUndelegated(address indexed staker, address indexed operator); /** * @notice Emitted when a new withdrawal is queued. * @param withdrawalRoot Is the hash of the `withdrawal`. * @param withdrawal Is the withdrawal itself. */ event WithdrawalQueued(bytes32 withdrawalRoot, Withdrawal withdrawal); /// @notice Emitted when a queued withdrawal is completed event WithdrawalCompleted(bytes32 withdrawalRoot); /// @notice Emitted when a queued withdrawal is *migrated* from the StrategyManager to the DelegationManager event WithdrawalMigrated(bytes32 oldWithdrawalRoot, bytes32 newWithdrawalRoot); /// @notice Emitted when the `minWithdrawalDelayBlocks` variable is modified from `previousValue` to `newValue`. event MinWithdrawalDelayBlocksSet(uint256 previousValue, uint256 newValue); /// @notice Emitted when the `strategyWithdrawalDelayBlocks` variable is modified from `previousValue` to `newValue`. event StrategyWithdrawalDelayBlocksSet(IStrategy strategy, uint256 previousValue, uint256 newValue); /** * @notice Registers the caller as an operator in EigenLayer. * @param registeringOperatorDetails is the `OperatorDetails` for the operator. * @param metadataURI is a URI for the operator's metadata, i.e. a link providing more details on the operator. * * @dev Once an operator is registered, they cannot 'deregister' as an operator, and they will forever be considered "delegated to themself". * @dev This function will revert if the caller attempts to set their `earningsReceiver` to address(0). * @dev Note that the `metadataURI` is *never stored * and is only emitted in the `OperatorMetadataURIUpdated` event */ function registerAsOperator(OperatorDetails calldata registeringOperatorDetails, string calldata metadataURI) external; /** * @notice Updates an operator's stored `OperatorDetails`. * @param newOperatorDetails is the updated `OperatorDetails` for the operator, to replace their current OperatorDetails`. * * @dev The caller must have previously registered as an operator in EigenLayer. * @dev This function will revert if the caller attempts to set their `earningsReceiver` to address(0). */ function modifyOperatorDetails(OperatorDetails calldata newOperatorDetails) external; /** * @notice Called by an operator to emit an `OperatorMetadataURIUpdated` event indicating the information has updated. * @param metadataURI The URI for metadata associated with an operator * @dev Note that the `metadataURI` is *never stored * and is only emitted in the `OperatorMetadataURIUpdated` event */ function updateOperatorMetadataURI(string calldata metadataURI) external; /** * @notice Caller delegates their stake to an operator. * @param operator The account (`msg.sender`) is delegating its assets to for use in serving applications built on EigenLayer. * @param approverSignatureAndExpiry Verifies the operator approves of this delegation * @param approverSalt A unique single use value tied to an individual signature. * @dev The approverSignatureAndExpiry is used in the event that: * 1) the operator's `delegationApprover` address is set to a non-zero value. * AND * 2) neither the operator nor their `delegationApprover` is the `msg.sender`, since in the event that the operator * or their delegationApprover is the `msg.sender`, then approval is assumed. * @dev In the event that `approverSignatureAndExpiry` is not checked, its content is ignored entirely; it's recommended to use an empty input * in this case to save on complexity + gas costs */ function delegateTo(address operator, SignatureWithExpiry memory approverSignatureAndExpiry, bytes32 approverSalt) external; /** * @notice Caller delegates a staker's stake to an operator with valid signatures from both parties. * @param staker The account delegating stake to an `operator` account * @param operator The account (`staker`) is delegating its assets to for use in serving applications built on EigenLayer. * @param stakerSignatureAndExpiry Signed data from the staker authorizing delegating stake to an operator * @param approverSignatureAndExpiry is a parameter that will be used for verifying that the operator approves of this delegation action in the event that: * @param approverSalt Is a salt used to help guarantee signature uniqueness. Each salt can only be used once by a given approver. * * @dev If `staker` is an EOA, then `stakerSignature` is verified to be a valid ECDSA stakerSignature from `staker`, indicating their intention for this action. * @dev If `staker` is a contract, then `stakerSignature` will be checked according to EIP-1271. * @dev the operator's `delegationApprover` address is set to a non-zero value. * @dev neither the operator nor their `delegationApprover` is the `msg.sender`, since in the event that the operator or their delegationApprover * is the `msg.sender`, then approval is assumed. * @dev This function will revert if the current `block.timestamp` is equal to or exceeds the expiry * @dev In the case that `approverSignatureAndExpiry` is not checked, its content is ignored entirely; it's recommended to use an empty input * in this case to save on complexity + gas costs */ function delegateToBySignature( address staker, address operator, SignatureWithExpiry memory stakerSignatureAndExpiry, SignatureWithExpiry memory approverSignatureAndExpiry, bytes32 approverSalt ) external; /** * @notice Undelegates the staker from the operator who they are delegated to. Puts the staker into the "undelegation limbo" mode of the EigenPodManager * and queues a withdrawal of all of the staker's shares in the StrategyManager (to the staker), if necessary. * @param staker The account to be undelegated. * @return withdrawalRoot The root of the newly queued withdrawal, if a withdrawal was queued. Otherwise just bytes32(0). * * @dev Reverts if the `staker` is also an operator, since operators are not allowed to undelegate from themselves. * @dev Reverts if the caller is not the staker, nor the operator who the staker is delegated to, nor the operator's specified "delegationApprover" * @dev Reverts if the `staker` is already undelegated. */ function undelegate(address staker) external returns (bytes32[] memory withdrawalRoot); /** * Allows a staker to withdraw some shares. Withdrawn shares/strategies are immediately removed * from the staker. If the staker is delegated, withdrawn shares/strategies are also removed from * their operator. * * All withdrawn shares/strategies are placed in a queue and can be fully withdrawn after a delay. */ function queueWithdrawals(QueuedWithdrawalParams[] calldata queuedWithdrawalParams) external returns (bytes32[] memory); /** * @notice Used to complete the specified `withdrawal`. The caller must match `withdrawal.withdrawer` * @param withdrawal The Withdrawal to complete. * @param tokens Array in which the i-th entry specifies the `token` input to the 'withdraw' function of the i-th Strategy in the `withdrawal.strategies` array. * This input can be provided with zero length if `receiveAsTokens` is set to 'false' (since in that case, this input will be unused) * @param middlewareTimesIndex is the index in the operator that the staker who triggered the withdrawal was delegated to's middleware times array * @param receiveAsTokens If true, the shares specified in the withdrawal will be withdrawn from the specified strategies themselves * and sent to the caller, through calls to `withdrawal.strategies[i].withdraw`. If false, then the shares in the specified strategies * will simply be transferred to the caller directly. * @dev middlewareTimesIndex should be calculated off chain before calling this function by finding the first index that satisfies `slasher.canWithdraw` * @dev beaconChainETHStrategy shares are non-transferrable, so if `receiveAsTokens = false` and `withdrawal.withdrawer != withdrawal.staker`, note that * any beaconChainETHStrategy shares in the `withdrawal` will be _returned to the staker_, rather than transferred to the withdrawer, unlike shares in * any other strategies, which will be transferred to the withdrawer. */ function completeQueuedWithdrawal( Withdrawal calldata withdrawal, IERC20[] calldata tokens, uint256 middlewareTimesIndex, bool receiveAsTokens ) external; /** * @notice Array-ified version of `completeQueuedWithdrawal`. * Used to complete the specified `withdrawals`. The function caller must match `withdrawals[...].withdrawer` * @param withdrawals The Withdrawals to complete. * @param tokens Array of tokens for each Withdrawal. See `completeQueuedWithdrawal` for the usage of a single array. * @param middlewareTimesIndexes One index to reference per Withdrawal. See `completeQueuedWithdrawal` for the usage of a single index. * @param receiveAsTokens Whether or not to complete each withdrawal as tokens. See `completeQueuedWithdrawal` for the usage of a single boolean. * @dev See `completeQueuedWithdrawal` for relevant dev tags */ function completeQueuedWithdrawals( Withdrawal[] calldata withdrawals, IERC20[][] calldata tokens, uint256[] calldata middlewareTimesIndexes, bool[] calldata receiveAsTokens ) external; /** * @notice Increases a staker's delegated share balance in a strategy. * @param staker The address to increase the delegated shares for their operator. * @param strategy The strategy in which to increase the delegated shares. * @param shares The number of shares to increase. * * @dev *If the staker is actively delegated*, then increases the `staker`'s delegated shares in `strategy` by `shares`. Otherwise does nothing. * @dev Callable only by the StrategyManager or EigenPodManager. */ function increaseDelegatedShares(address staker, IStrategy strategy, uint256 shares) external; /** * @notice Decreases a staker's delegated share balance in a strategy. * @param staker The address to increase the delegated shares for their operator. * @param strategy The strategy in which to decrease the delegated shares. * @param shares The number of shares to decrease. * * @dev *If the staker is actively delegated*, then decreases the `staker`'s delegated shares in `strategy` by `shares`. Otherwise does nothing. * @dev Callable only by the StrategyManager or EigenPodManager. */ function decreaseDelegatedShares(address staker, IStrategy strategy, uint256 shares) external; /** * @notice returns the address of the operator that `staker` is delegated to. * @notice Mapping: staker => operator whom the staker is currently delegated to. * @dev Note that returning address(0) indicates that the staker is not actively delegated to any operator. */ function delegatedTo(address staker) external view returns (address); /** * @notice Returns the OperatorDetails struct associated with an `operator`. */ function operatorDetails(address operator) external view returns (OperatorDetails memory); /* * @notice Returns the earnings receiver address for an operator */ function earningsReceiver(address operator) external view returns (address); /** * @notice Returns the delegationApprover account for an operator */ function delegationApprover(address operator) external view returns (address); /** * @notice Returns the stakerOptOutWindowBlocks for an operator */ function stakerOptOutWindowBlocks(address operator) external view returns (uint256); /** * @notice Given array of strategies, returns array of shares for the operator */ function getOperatorShares(address operator, IStrategy[] memory strategies) external view returns (uint256[] memory); /** * @notice Given a list of strategies, return the minimum number of blocks that must pass to withdraw * from all the inputted strategies. Return value is >= minWithdrawalDelayBlocks as this is the global min withdrawal delay. * @param strategies The strategies to check withdrawal delays for */ function getWithdrawalDelay(IStrategy[] calldata strategies) external view returns (uint256); /** * @notice returns the total number of shares in `strategy` that are delegated to `operator`. * @notice Mapping: operator => strategy => total number of shares in the strategy delegated to the operator. * @dev By design, the following invariant should hold for each Strategy: * (operator's shares in delegation manager) = sum (shares above zero of all stakers delegated to operator) * = sum (delegateable shares of all stakers delegated to the operator) */ function operatorShares(address operator, IStrategy strategy) external view returns (uint256); /** * @notice Returns 'true' if `staker` *is* actively delegated, and 'false' otherwise. */ function isDelegated(address staker) external view returns (bool); /** * @notice Returns true is an operator has previously registered for delegation. */ function isOperator(address operator) external view returns (bool); /// @notice Mapping: staker => number of signed delegation nonces (used in `delegateToBySignature`) from the staker that the contract has already checked function stakerNonce(address staker) external view returns (uint256); /** * @notice Mapping: delegationApprover => 32-byte salt => whether or not the salt has already been used by the delegationApprover. * @dev Salts are used in the `delegateTo` and `delegateToBySignature` functions. Note that these functions only process the delegationApprover's * signature + the provided salt if the operator being delegated to has specified a nonzero address as their `delegationApprover`. */ function delegationApproverSaltIsSpent(address _delegationApprover, bytes32 salt) external view returns (bool); /** * @notice Minimum delay enforced by this contract for completing queued withdrawals. Measured in blocks, and adjustable by this contract's owner, * up to a maximum of `MAX_WITHDRAWAL_DELAY_BLOCKS`. Minimum value is 0 (i.e. no delay enforced). * Note that strategies each have a separate withdrawal delay, which can be greater than this value. So the minimum number of blocks that must pass * to withdraw a strategy is MAX(minWithdrawalDelayBlocks, strategyWithdrawalDelayBlocks[strategy]) */ function minWithdrawalDelayBlocks() external view returns (uint256); /** * @notice Minimum delay enforced by this contract per Strategy for completing queued withdrawals. Measured in blocks, and adjustable by this contract's owner, * up to a maximum of `MAX_WITHDRAWAL_DELAY_BLOCKS`. Minimum value is 0 (i.e. no delay enforced). */ function strategyWithdrawalDelayBlocks(IStrategy strategy) external view returns (uint256); /** * @notice Calculates the digestHash for a `staker` to sign to delegate to an `operator` * @param staker The signing staker * @param operator The operator who is being delegated to * @param expiry The desired expiry time of the staker's signature */ function calculateCurrentStakerDelegationDigestHash(address staker, address operator, uint256 expiry) external view returns (bytes32); /** * @notice Calculates the digest hash to be signed and used in the `delegateToBySignature` function * @param staker The signing staker * @param _stakerNonce The nonce of the staker. In practice we use the staker's current nonce, stored at `stakerNonce[staker]` * @param operator The operator who is being delegated to * @param expiry The desired expiry time of the staker's signature */ function calculateStakerDelegationDigestHash(address staker, uint256 _stakerNonce, address operator, uint256 expiry) external view returns (bytes32); /** * @notice Calculates the digest hash to be signed by the operator's delegationApprove and used in the `delegateTo` and `delegateToBySignature` functions. * @param staker The account delegating their stake * @param operator The account receiving delegated stake * @param _delegationApprover the operator's `delegationApprover` who will be signing the delegationHash (in general) * @param approverSalt A unique and single use value associated with the approver signature. * @param expiry Time after which the approver's signature becomes invalid */ function calculateDelegationApprovalDigestHash( address staker, address operator, address _delegationApprover, bytes32 approverSalt, uint256 expiry ) external view returns (bytes32); /// @notice The EIP-712 typehash for the contract's domain function DOMAIN_TYPEHASH() external view returns (bytes32); /// @notice The EIP-712 typehash for the StakerDelegation struct used by the contract function STAKER_DELEGATION_TYPEHASH() external view returns (bytes32); /// @notice The EIP-712 typehash for the DelegationApproval struct used by the contract function DELEGATION_APPROVAL_TYPEHASH() external view returns (bytes32); /** * @notice Getter function for the current EIP-712 domain separator for this contract. * * @dev The domain separator will change in the event of a fork that changes the ChainID. * @dev By introducing a domain separator the DApp developers are guaranteed that there can be no signature collision. * for more detailed information please read EIP-712. */ function domainSeparator() external view returns (bytes32); /// @notice Mapping: staker => cumulative number of queued withdrawals they have ever initiated. /// @dev This only increments (doesn't decrement), and is used to help ensure that otherwise identical withdrawals have unique hashes. function cumulativeWithdrawalsQueued(address staker) external view returns (uint256); /// @notice Returns the keccak256 hash of `withdrawal`. function calculateWithdrawalRoot(Withdrawal memory withdrawal) external pure returns (bytes32); function migrateQueuedWithdrawals(IStrategyManager.DeprecatedStruct_QueuedWithdrawal[] memory withdrawalsToQueue) external; }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity >=0.5.0; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; /** * @title Minimal interface for an `Strategy` contract. * @author Layr Labs, Inc. * @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service * @notice Custom `Strategy` implementations may expand extensively on this interface. */ interface IStrategy { /** * @notice Used to deposit tokens into this Strategy * @param token is the ERC20 token being deposited * @param amount is the amount of token being deposited * @dev This function is only callable by the strategyManager contract. It is invoked inside of the strategyManager's * `depositIntoStrategy` function, and individual share balances are recorded in the strategyManager as well. * @return newShares is the number of new shares issued at the current exchange ratio. */ function deposit(IERC20 token, uint256 amount) external returns (uint256); /** * @notice Used to withdraw tokens from this Strategy, to the `recipient`'s address * @param recipient is the address to receive the withdrawn funds * @param token is the ERC20 token being transferred out * @param amountShares is the amount of shares being withdrawn * @dev This function is only callable by the strategyManager contract. It is invoked inside of the strategyManager's * other functions, and individual share balances are recorded in the strategyManager as well. */ function withdraw(address recipient, IERC20 token, uint256 amountShares) external; /** * @notice Used to convert a number of shares to the equivalent amount of underlying tokens for this strategy. * @notice In contrast to `sharesToUnderlyingView`, this function **may** make state modifications * @param amountShares is the amount of shares to calculate its conversion into the underlying token * @return The amount of underlying tokens corresponding to the input `amountShares` * @dev Implementation for these functions in particular may vary significantly for different strategies */ function sharesToUnderlying(uint256 amountShares) external returns (uint256); /** * @notice Used to convert an amount of underlying tokens to the equivalent amount of shares in this strategy. * @notice In contrast to `underlyingToSharesView`, this function **may** make state modifications * @param amountUnderlying is the amount of `underlyingToken` to calculate its conversion into strategy shares * @return The amount of underlying tokens corresponding to the input `amountShares` * @dev Implementation for these functions in particular may vary significantly for different strategies */ function underlyingToShares(uint256 amountUnderlying) external returns (uint256); /** * @notice convenience function for fetching the current underlying value of all of the `user`'s shares in * this strategy. In contrast to `userUnderlyingView`, this function **may** make state modifications */ function userUnderlying(address user) external returns (uint256); /** * @notice convenience function for fetching the current total shares of `user` in this strategy, by * querying the `strategyManager` contract */ function shares(address user) external view returns (uint256); /** * @notice Used to convert a number of shares to the equivalent amount of underlying tokens for this strategy. * @notice In contrast to `sharesToUnderlying`, this function guarantees no state modifications * @param amountShares is the amount of shares to calculate its conversion into the underlying token * @return The amount of shares corresponding to the input `amountUnderlying` * @dev Implementation for these functions in particular may vary significantly for different strategies */ function sharesToUnderlyingView(uint256 amountShares) external view returns (uint256); /** * @notice Used to convert an amount of underlying tokens to the equivalent amount of shares in this strategy. * @notice In contrast to `underlyingToShares`, this function guarantees no state modifications * @param amountUnderlying is the amount of `underlyingToken` to calculate its conversion into strategy shares * @return The amount of shares corresponding to the input `amountUnderlying` * @dev Implementation for these functions in particular may vary significantly for different strategies */ function underlyingToSharesView(uint256 amountUnderlying) external view returns (uint256); /** * @notice convenience function for fetching the current underlying value of all of the `user`'s shares in * this strategy. In contrast to `userUnderlying`, this function guarantees no state modifications */ function userUnderlyingView(address user) external view returns (uint256); /// @notice The underlying token for shares in this Strategy function underlyingToken() external view returns (IERC20); /// @notice The total number of extant shares in this Strategy function totalShares() external view returns (uint256); /// @notice Returns either a brief string explaining the strategy's goal & purpose, or a link to metadata that explains in more detail. function explanation() external view returns (string memory); }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity >=0.5.0; import "./IStrategy.sol"; import "./ISlasher.sol"; import "./IDelegationManager.sol"; import "./IEigenPodManager.sol"; /** * @title Interface for the primary entrypoint for funds into EigenLayer. * @author Layr Labs, Inc. * @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service * @notice See the `StrategyManager` contract itself for implementation details. */ interface IStrategyManager { /** * @notice Emitted when a new deposit occurs on behalf of `staker`. * @param staker Is the staker who is depositing funds into EigenLayer. * @param strategy Is the strategy that `staker` has deposited into. * @param token Is the token that `staker` deposited. * @param shares Is the number of new shares `staker` has been granted in `strategy`. */ event Deposit(address staker, IERC20 token, IStrategy strategy, uint256 shares); /// @notice Emitted when `thirdPartyTransfersForbidden` is updated for a strategy and value by the owner event UpdatedThirdPartyTransfersForbidden(IStrategy strategy, bool value); /// @notice Emitted when the `strategyWhitelister` is changed event StrategyWhitelisterChanged(address previousAddress, address newAddress); /// @notice Emitted when a strategy is added to the approved list of strategies for deposit event StrategyAddedToDepositWhitelist(IStrategy strategy); /// @notice Emitted when a strategy is removed from the approved list of strategies for deposit event StrategyRemovedFromDepositWhitelist(IStrategy strategy); /** * @notice Deposits `amount` of `token` into the specified `strategy`, with the resultant shares credited to `msg.sender` * @param strategy is the specified strategy where deposit is to be made, * @param token is the denomination in which the deposit is to be made, * @param amount is the amount of token to be deposited in the strategy by the staker * @return shares The amount of new shares in the `strategy` created as part of the action. * @dev The `msg.sender` must have previously approved this contract to transfer at least `amount` of `token` on their behalf. * @dev Cannot be called by an address that is 'frozen' (this function will revert if the `msg.sender` is frozen). * * WARNING: Depositing tokens that allow reentrancy (eg. ERC-777) into a strategy is not recommended. This can lead to attack vectors * where the token balance and corresponding strategy shares are not in sync upon reentrancy. */ function depositIntoStrategy(IStrategy strategy, IERC20 token, uint256 amount) external returns (uint256 shares); /** * @notice Used for depositing an asset into the specified strategy with the resultant shares credited to `staker`, * who must sign off on the action. * Note that the assets are transferred out/from the `msg.sender`, not from the `staker`; this function is explicitly designed * purely to help one address deposit 'for' another. * @param strategy is the specified strategy where deposit is to be made, * @param token is the denomination in which the deposit is to be made, * @param amount is the amount of token to be deposited in the strategy by the staker * @param staker the staker that the deposited assets will be credited to * @param expiry the timestamp at which the signature expires * @param signature is a valid signature from the `staker`. either an ECDSA signature if the `staker` is an EOA, or data to forward * following EIP-1271 if the `staker` is a contract * @return shares The amount of new shares in the `strategy` created as part of the action. * @dev The `msg.sender` must have previously approved this contract to transfer at least `amount` of `token` on their behalf. * @dev A signature is required for this function to eliminate the possibility of griefing attacks, specifically those * targeting stakers who may be attempting to undelegate. * @dev Cannot be called if thirdPartyTransfersForbidden is set to true for this strategy * * WARNING: Depositing tokens that allow reentrancy (eg. ERC-777) into a strategy is not recommended. This can lead to attack vectors * where the token balance and corresponding strategy shares are not in sync upon reentrancy */ function depositIntoStrategyWithSignature( IStrategy strategy, IERC20 token, uint256 amount, address staker, uint256 expiry, bytes memory signature ) external returns (uint256 shares); /// @notice Used by the DelegationManager to remove a Staker's shares from a particular strategy when entering the withdrawal queue function removeShares(address staker, IStrategy strategy, uint256 shares) external; /// @notice Used by the DelegationManager to award a Staker some shares that have passed through the withdrawal queue function addShares(address staker, IERC20 token, IStrategy strategy, uint256 shares) external; /// @notice Used by the DelegationManager to convert withdrawn shares to tokens and send them to a recipient function withdrawSharesAsTokens(address recipient, IStrategy strategy, uint256 shares, IERC20 token) external; /// @notice Returns the current shares of `user` in `strategy` function stakerStrategyShares(address user, IStrategy strategy) external view returns (uint256 shares); /** * @notice Get all details on the staker's deposits and corresponding shares * @return (staker's strategies, shares in these strategies) */ function getDeposits(address staker) external view returns (IStrategy[] memory, uint256[] memory); /// @notice Simple getter function that returns `stakerStrategyList[staker].length`. function stakerStrategyListLength(address staker) external view returns (uint256); /** * @notice Owner-only function that adds the provided Strategies to the 'whitelist' of strategies that stakers can deposit into * @param strategiesToWhitelist Strategies that will be added to the `strategyIsWhitelistedForDeposit` mapping (if they aren't in it already) * @param thirdPartyTransfersForbiddenValues bool values to set `thirdPartyTransfersForbidden` to for each strategy */ function addStrategiesToDepositWhitelist( IStrategy[] calldata strategiesToWhitelist, bool[] calldata thirdPartyTransfersForbiddenValues ) external; /** * @notice Owner-only function that removes the provided Strategies from the 'whitelist' of strategies that stakers can deposit into * @param strategiesToRemoveFromWhitelist Strategies that will be removed to the `strategyIsWhitelistedForDeposit` mapping (if they are in it) */ function removeStrategiesFromDepositWhitelist(IStrategy[] calldata strategiesToRemoveFromWhitelist) external; /// @notice Returns the single, central Delegation contract of EigenLayer function delegation() external view returns (IDelegationManager); /// @notice Returns the single, central Slasher contract of EigenLayer function slasher() external view returns (ISlasher); /// @notice Returns the EigenPodManager contract of EigenLayer function eigenPodManager() external view returns (IEigenPodManager); /// @notice Returns the address of the `strategyWhitelister` function strategyWhitelister() external view returns (address); /** * @notice Returns bool for whether or not `strategy` enables credit transfers. i.e enabling * depositIntoStrategyWithSignature calls or queueing withdrawals to a different address than the staker. */ function thirdPartyTransfersForbidden(IStrategy strategy) external view returns (bool); // LIMITED BACKWARDS-COMPATIBILITY FOR DEPRECATED FUNCTIONALITY // packed struct for queued withdrawals; helps deal with stack-too-deep errors struct DeprecatedStruct_WithdrawerAndNonce { address withdrawer; uint96 nonce; } /** * Struct type used to specify an existing queued withdrawal. Rather than storing the entire struct, only a hash is stored. * In functions that operate on existing queued withdrawals -- e.g. `startQueuedWithdrawalWaitingPeriod` or `completeQueuedWithdrawal`, * the data is resubmitted and the hash of the submitted data is computed by `calculateWithdrawalRoot` and checked against the * stored hash in order to confirm the integrity of the submitted data. */ struct DeprecatedStruct_QueuedWithdrawal { IStrategy[] strategies; uint256[] shares; address staker; DeprecatedStruct_WithdrawerAndNonce withdrawerAndNonce; uint32 withdrawalStartBlock; address delegatedAddress; } function migrateQueuedWithdrawal(DeprecatedStruct_QueuedWithdrawal memory queuedWithdrawal) external returns (bool, bytes32); function calculateWithdrawalRoot(DeprecatedStruct_QueuedWithdrawal memory queuedWithdrawal) external pure returns (bytes32); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `from` to `to` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address from, address to, uint256 amount) external returns (bool); }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity >=0.5.0; import "./IStrategyManager.sol"; import "./IDelegationManager.sol"; /** * @title Interface for the primary 'slashing' contract for EigenLayer. * @author Layr Labs, Inc. * @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service * @notice See the `Slasher` contract itself for implementation details. */ interface ISlasher { // struct used to store information about the current state of an operator's obligations to middlewares they are serving struct MiddlewareTimes { // The update block for the middleware whose most recent update was earliest, i.e. the 'stalest' update out of all middlewares the operator is serving uint32 stalestUpdateBlock; // The latest 'serveUntilBlock' from all of the middleware that the operator is serving uint32 latestServeUntilBlock; } // struct used to store details relevant to a single middleware that an operator has opted-in to serving struct MiddlewareDetails { // the block at which the contract begins being able to finalize the operator's registration with the service via calling `recordFirstStakeUpdate` uint32 registrationMayBeginAtBlock; // the block before which the contract is allowed to slash the user uint32 contractCanSlashOperatorUntilBlock; // the block at which the middleware's view of the operator's stake was most recently updated uint32 latestUpdateBlock; } /// @notice Emitted when a middleware times is added to `operator`'s array. event MiddlewareTimesAdded( address operator, uint256 index, uint32 stalestUpdateBlock, uint32 latestServeUntilBlock ); /// @notice Emitted when `operator` begins to allow `contractAddress` to slash them. event OptedIntoSlashing(address indexed operator, address indexed contractAddress); /// @notice Emitted when `contractAddress` signals that it will no longer be able to slash `operator` after the `contractCanSlashOperatorUntilBlock`. event SlashingAbilityRevoked( address indexed operator, address indexed contractAddress, uint32 contractCanSlashOperatorUntilBlock ); /** * @notice Emitted when `slashingContract` 'freezes' the `slashedOperator`. * @dev The `slashingContract` must have permission to slash the `slashedOperator`, i.e. `canSlash(slasherOperator, slashingContract)` must return 'true'. */ event OperatorFrozen(address indexed slashedOperator, address indexed slashingContract); /// @notice Emitted when `previouslySlashedAddress` is 'unfrozen', allowing them to again move deposited funds within EigenLayer. event FrozenStatusReset(address indexed previouslySlashedAddress); /** * @notice Gives the `contractAddress` permission to slash the funds of the caller. * @dev Typically, this function must be called prior to registering for a middleware. */ function optIntoSlashing(address contractAddress) external; /** * @notice Used for 'slashing' a certain operator. * @param toBeFrozen The operator to be frozen. * @dev Technically the operator is 'frozen' (hence the name of this function), and then subject to slashing pending a decision by a human-in-the-loop. * @dev The operator must have previously given the caller (which should be a contract) the ability to slash them, through a call to `optIntoSlashing`. */ function freezeOperator(address toBeFrozen) external; /** * @notice Removes the 'frozen' status from each of the `frozenAddresses` * @dev Callable only by the contract owner (i.e. governance). */ function resetFrozenStatus(address[] calldata frozenAddresses) external; /** * @notice this function is a called by middlewares during an operator's registration to make sure the operator's stake at registration * is slashable until serveUntil * @param operator the operator whose stake update is being recorded * @param serveUntilBlock the block until which the operator's stake at the current block is slashable * @dev adds the middleware's slashing contract to the operator's linked list */ function recordFirstStakeUpdate(address operator, uint32 serveUntilBlock) external; /** * @notice this function is a called by middlewares during a stake update for an operator (perhaps to free pending withdrawals) * to make sure the operator's stake at updateBlock is slashable until serveUntil * @param operator the operator whose stake update is being recorded * @param updateBlock the block for which the stake update is being recorded * @param serveUntilBlock the block until which the operator's stake at updateBlock is slashable * @param insertAfter the element of the operators linked list that the currently updating middleware should be inserted after * @dev insertAfter should be calculated offchain before making the transaction that calls this. this is subject to race conditions, * but it is anticipated to be rare and not detrimental. */ function recordStakeUpdate(address operator, uint32 updateBlock, uint32 serveUntilBlock, uint256 insertAfter) external; /** * @notice this function is a called by middlewares during an operator's deregistration to make sure the operator's stake at deregistration * is slashable until serveUntil * @param operator the operator whose stake update is being recorded * @param serveUntilBlock the block until which the operator's stake at the current block is slashable * @dev removes the middleware's slashing contract to the operator's linked list and revokes the middleware's (i.e. caller's) ability to * slash `operator` once `serveUntil` is reached */ function recordLastStakeUpdateAndRevokeSlashingAbility(address operator, uint32 serveUntilBlock) external; /// @notice The StrategyManager contract of EigenLayer function strategyManager() external view returns (IStrategyManager); /// @notice The DelegationManager contract of EigenLayer function delegation() external view returns (IDelegationManager); /** * @notice Used to determine whether `staker` is actively 'frozen'. If a staker is frozen, then they are potentially subject to * slashing of their funds, and cannot cannot deposit or withdraw from the strategyManager until the slashing process is completed * and the staker's status is reset (to 'unfrozen'). * @param staker The staker of interest. * @return Returns 'true' if `staker` themselves has their status set to frozen, OR if the staker is delegated * to an operator who has their status set to frozen. Otherwise returns 'false'. */ function isFrozen(address staker) external view returns (bool); /// @notice Returns true if `slashingContract` is currently allowed to slash `toBeSlashed`. function canSlash(address toBeSlashed, address slashingContract) external view returns (bool); /// @notice Returns the block until which `serviceContract` is allowed to slash the `operator`. function contractCanSlashOperatorUntilBlock(address operator, address serviceContract) external view returns (uint32); /// @notice Returns the block at which the `serviceContract` last updated its view of the `operator`'s stake function latestUpdateBlock(address operator, address serviceContract) external view returns (uint32); /// @notice A search routine for finding the correct input value of `insertAfter` to `recordStakeUpdate` / `_updateMiddlewareList`. function getCorrectValueForInsertAfter(address operator, uint32 updateBlock) external view returns (uint256); /** * @notice Returns 'true' if `operator` can currently complete a withdrawal started at the `withdrawalStartBlock`, with `middlewareTimesIndex` used * to specify the index of a `MiddlewareTimes` struct in the operator's list (i.e. an index in `operatorToMiddlewareTimes[operator]`). The specified * struct is consulted as proof of the `operator`'s ability (or lack thereof) to complete the withdrawal. * This function will return 'false' if the operator cannot currently complete a withdrawal started at the `withdrawalStartBlock`, *or* in the event * that an incorrect `middlewareTimesIndex` is supplied, even if one or more correct inputs exist. * @param operator Either the operator who queued the withdrawal themselves, or if the withdrawing party is a staker who delegated to an operator, * this address is the operator *who the staker was delegated to* at the time of the `withdrawalStartBlock`. * @param withdrawalStartBlock The block number at which the withdrawal was initiated. * @param middlewareTimesIndex Indicates an index in `operatorToMiddlewareTimes[operator]` to consult as proof of the `operator`'s ability to withdraw * @dev The correct `middlewareTimesIndex` input should be computable off-chain. */ function canWithdraw(address operator, uint32 withdrawalStartBlock, uint256 middlewareTimesIndex) external returns (bool); /** * operator => * [ * ( * the least recent update block of all of the middlewares it's serving/served, * latest time that the stake bonded at that update needed to serve until * ) * ] */ function operatorToMiddlewareTimes(address operator, uint256 arrayIndex) external view returns (MiddlewareTimes memory); /// @notice Getter function for fetching `operatorToMiddlewareTimes[operator].length` function middlewareTimesLength(address operator) external view returns (uint256); /// @notice Getter function for fetching `operatorToMiddlewareTimes[operator][index].stalestUpdateBlock`. function getMiddlewareTimesIndexStalestUpdateBlock(address operator, uint32 index) external view returns (uint32); /// @notice Getter function for fetching `operatorToMiddlewareTimes[operator][index].latestServeUntil`. function getMiddlewareTimesIndexServeUntilBlock(address operator, uint32 index) external view returns (uint32); /// @notice Getter function for fetching `_operatorToWhitelistedContractsByUpdate[operator].size`. function operatorWhitelistedContractsLinkedListSize(address operator) external view returns (uint256); /// @notice Getter function for fetching a single node in the operator's linked list (`_operatorToWhitelistedContractsByUpdate[operator]`). function operatorWhitelistedContractsLinkedListEntry(address operator, address node) external view returns (bool, uint256, uint256); }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity >=0.5.0; import "@openzeppelin/contracts/proxy/beacon/IBeacon.sol"; import "./IETHPOSDeposit.sol"; import "./IStrategyManager.sol"; import "./IEigenPod.sol"; import "./IBeaconChainOracle.sol"; import "./IPausable.sol"; import "./ISlasher.sol"; import "./IStrategy.sol"; /** * @title Interface for factory that creates and manages solo staking pods that have their withdrawal credentials pointed to EigenLayer. * @author Layr Labs, Inc. * @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service */ interface IEigenPodManager is IPausable { /// @notice Emitted to notify the update of the beaconChainOracle address event BeaconOracleUpdated(address indexed newOracleAddress); /// @notice Emitted to notify the deployment of an EigenPod event PodDeployed(address indexed eigenPod, address indexed podOwner); /// @notice Emitted to notify a deposit of beacon chain ETH recorded in the strategy manager event BeaconChainETHDeposited(address indexed podOwner, uint256 amount); /// @notice Emitted when the balance of an EigenPod is updated event PodSharesUpdated(address indexed podOwner, int256 sharesDelta); /// @notice Emitted when a withdrawal of beacon chain ETH is completed event BeaconChainETHWithdrawalCompleted( address indexed podOwner, uint256 shares, uint96 nonce, address delegatedAddress, address withdrawer, bytes32 withdrawalRoot ); event DenebForkTimestampUpdated(uint64 newValue); /** * @notice Creates an EigenPod for the sender. * @dev Function will revert if the `msg.sender` already has an EigenPod. * @dev Returns EigenPod address */ function createPod() external returns (address); /** * @notice Stakes for a new beacon chain validator on the sender's EigenPod. * Also creates an EigenPod for the sender if they don't have one already. * @param pubkey The 48 bytes public key of the beacon chain validator. * @param signature The validator's signature of the deposit data. * @param depositDataRoot The root/hash of the deposit data for the validator's deposit. */ function stake(bytes calldata pubkey, bytes calldata signature, bytes32 depositDataRoot) external payable; /** * @notice Changes the `podOwner`'s shares by `sharesDelta` and performs a call to the DelegationManager * to ensure that delegated shares are also tracked correctly * @param podOwner is the pod owner whose balance is being updated. * @param sharesDelta is the change in podOwner's beaconChainETHStrategy shares * @dev Callable only by the podOwner's EigenPod contract. * @dev Reverts if `sharesDelta` is not a whole Gwei amount */ function recordBeaconChainETHBalanceUpdate(address podOwner, int256 sharesDelta) external; /** * @notice Updates the oracle contract that provides the beacon chain state root * @param newBeaconChainOracle is the new oracle contract being pointed to * @dev Callable only by the owner of this contract (i.e. governance) */ function updateBeaconChainOracle(IBeaconChainOracle newBeaconChainOracle) external; /// @notice Returns the address of the `podOwner`'s EigenPod if it has been deployed. function ownerToPod(address podOwner) external view returns (IEigenPod); /// @notice Returns the address of the `podOwner`'s EigenPod (whether it is deployed yet or not). function getPod(address podOwner) external view returns (IEigenPod); /// @notice The ETH2 Deposit Contract function ethPOS() external view returns (IETHPOSDeposit); /// @notice Beacon proxy to which the EigenPods point function eigenPodBeacon() external view returns (IBeacon); /// @notice Oracle contract that provides updates to the beacon chain's state function beaconChainOracle() external view returns (IBeaconChainOracle); /// @notice Returns the beacon block root at `timestamp`. Reverts if the Beacon block root at `timestamp` has not yet been finalized. function getBlockRootAtTimestamp(uint64 timestamp) external view returns (bytes32); /// @notice EigenLayer's StrategyManager contract function strategyManager() external view returns (IStrategyManager); /// @notice EigenLayer's Slasher contract function slasher() external view returns (ISlasher); /// @notice Returns 'true' if the `podOwner` has created an EigenPod, and 'false' otherwise. function hasPod(address podOwner) external view returns (bool); /// @notice Returns the number of EigenPods that have been created function numPods() external view returns (uint256); /** * @notice Mapping from Pod owner owner to the number of shares they have in the virtual beacon chain ETH strategy. * @dev The share amount can become negative. This is necessary to accommodate the fact that a pod owner's virtual beacon chain ETH shares can * decrease between the pod owner queuing and completing a withdrawal. * When the pod owner's shares would otherwise increase, this "deficit" is decreased first _instead_. * Likewise, when a withdrawal is completed, this "deficit" is decreased and the withdrawal amount is decreased; We can think of this * as the withdrawal "paying off the deficit". */ function podOwnerShares(address podOwner) external view returns (int256); /// @notice returns canonical, virtual beaconChainETH strategy function beaconChainETHStrategy() external view returns (IStrategy); /** * @notice Used by the DelegationManager to remove a pod owner's shares while they're in the withdrawal queue. * Simply decreases the `podOwner`'s shares by `shares`, down to a minimum of zero. * @dev This function reverts if it would result in `podOwnerShares[podOwner]` being less than zero, i.e. it is forbidden for this function to * result in the `podOwner` incurring a "share deficit". This behavior prevents a Staker from queuing a withdrawal which improperly removes excessive * shares from the operator to whom the staker is delegated. * @dev Reverts if `shares` is not a whole Gwei amount */ function removeShares(address podOwner, uint256 shares) external; /** * @notice Increases the `podOwner`'s shares by `shares`, paying off deficit if possible. * Used by the DelegationManager to award a pod owner shares on exiting the withdrawal queue * @dev Returns the number of shares added to `podOwnerShares[podOwner]` above zero, which will be less than the `shares` input * in the event that the podOwner has an existing shares deficit (i.e. `podOwnerShares[podOwner]` starts below zero) * @dev Reverts if `shares` is not a whole Gwei amount */ function addShares(address podOwner, uint256 shares) external returns (uint256); /** * @notice Used by the DelegationManager to complete a withdrawal, sending tokens to some destination address * @dev Prioritizes decreasing the podOwner's share deficit, if they have one * @dev Reverts if `shares` is not a whole Gwei amount */ function withdrawSharesAsTokens(address podOwner, address destination, uint256 shares) external; /** * @notice the deneb hard fork timestamp used to determine which proof path to use for proving a withdrawal */ function denebForkTimestamp() external view returns (uint64); /** * setting the deneb hard fork timestamp by the eigenPodManager owner * @dev this function is designed to be called twice. Once, it is set to type(uint64).max * prior to the actual deneb fork timestamp being set, and then the second time it is set * to the actual deneb fork timestamp. */ function setDenebForkTimestamp(uint64 newDenebForkTimestamp) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol) pragma solidity ^0.8.0; /** * @dev This is the interface that {BeaconProxy} expects of its beacon. */ interface IBeacon { /** * @dev Must return an address that can be used as a delegate call target. * * {BeaconProxy} will check that this address is a contract. */ function implementation() external view returns (address); }
// ┏━━━┓━┏┓━┏┓━━┏━━━┓━━┏━━━┓━━━━┏━━━┓━━━━━━━━━━━━━━━━━━━┏┓━━━━━┏━━━┓━━━━━━━━━┏┓━━━━━━━━━━━━━━┏┓━ // ┃┏━━┛┏┛┗┓┃┃━━┃┏━┓┃━━┃┏━┓┃━━━━┗┓┏┓┃━━━━━━━━━━━━━━━━━━┏┛┗┓━━━━┃┏━┓┃━━━━━━━━┏┛┗┓━━━━━━━━━━━━┏┛┗┓ // ┃┗━━┓┗┓┏┛┃┗━┓┗┛┏┛┃━━┃┃━┃┃━━━━━┃┃┃┃┏━━┓┏━━┓┏━━┓┏━━┓┏┓┗┓┏┛━━━━┃┃━┗┛┏━━┓┏━┓━┗┓┏┛┏━┓┏━━┓━┏━━┓┗┓┏┛ // ┃┏━━┛━┃┃━┃┏┓┃┏━┛┏┛━━┃┃━┃┃━━━━━┃┃┃┃┃┏┓┃┃┏┓┃┃┏┓┃┃━━┫┣┫━┃┃━━━━━┃┃━┏┓┃┏┓┃┃┏┓┓━┃┃━┃┏┛┗━┓┃━┃┏━┛━┃┃━ // ┃┗━━┓━┃┗┓┃┃┃┃┃┃┗━┓┏┓┃┗━┛┃━━━━┏┛┗┛┃┃┃━┫┃┗┛┃┃┗┛┃┣━━┃┃┃━┃┗┓━━━━┃┗━┛┃┃┗┛┃┃┃┃┃━┃┗┓┃┃━┃┗┛┗┓┃┗━┓━┃┗┓ // ┗━━━┛━┗━┛┗┛┗┛┗━━━┛┗┛┗━━━┛━━━━┗━━━┛┗━━┛┃┏━┛┗━━┛┗━━┛┗┛━┗━┛━━━━┗━━━┛┗━━┛┗┛┗┛━┗━┛┗┛━┗━━━┛┗━━┛━┗━┛ // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┃┃━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┗┛━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ // SPDX-License-Identifier: CC0-1.0 pragma solidity >=0.5.0; // This interface is designed to be compatible with the Vyper version. /// @notice This is the Ethereum 2.0 deposit contract interface. /// For more information see the Phase 0 specification under https://github.com/ethereum/eth2.0-specs interface IETHPOSDeposit { /// @notice A processed deposit event. event DepositEvent(bytes pubkey, bytes withdrawal_credentials, bytes amount, bytes signature, bytes index); /// @notice Submit a Phase 0 DepositData object. /// @param pubkey A BLS12-381 public key. /// @param withdrawal_credentials Commitment to a public key for withdrawals. /// @param signature A BLS12-381 signature. /// @param deposit_data_root The SHA-256 hash of the SSZ-encoded DepositData object. /// Used as a protection against malformed input. function deposit( bytes calldata pubkey, bytes calldata withdrawal_credentials, bytes calldata signature, bytes32 deposit_data_root ) external payable; /// @notice Query the current deposit root hash. /// @return The deposit root hash. function get_deposit_root() external view returns (bytes32); /// @notice Query the current deposit count. /// @return The deposit count encoded as a little endian 64-bit number. function get_deposit_count() external view returns (bytes memory); }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity >=0.5.0; import "../libraries/BeaconChainProofs.sol"; import "./IEigenPodManager.sol"; import "./IBeaconChainOracle.sol"; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; /** * @title The implementation contract used for restaking beacon chain ETH on EigenLayer * @author Layr Labs, Inc. * @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service * @notice The main functionalities are: * - creating new ETH validators with their withdrawal credentials pointed to this contract * - proving from beacon chain state roots that withdrawal credentials are pointed to this contract * - proving from beacon chain state roots the balances of ETH validators with their withdrawal credentials * pointed to this contract * - updating aggregate balances in the EigenPodManager * - withdrawing eth when withdrawals are initiated * @dev Note that all beacon chain balances are stored as gwei within the beacon chain datastructures. We choose * to account balances in terms of gwei in the EigenPod contract and convert to wei when making calls to other contracts */ interface IEigenPod { enum VALIDATOR_STATUS { INACTIVE, // doesnt exist ACTIVE, // staked on ethpos and withdrawal credentials are pointed to the EigenPod WITHDRAWN // withdrawn from the Beacon Chain } struct ValidatorInfo { // index of the validator in the beacon chain uint64 validatorIndex; // amount of beacon chain ETH restaked on EigenLayer in gwei uint64 restakedBalanceGwei; //timestamp of the validator's most recent balance update uint64 mostRecentBalanceUpdateTimestamp; // status of the validator VALIDATOR_STATUS status; } /** * @notice struct used to store amounts related to proven withdrawals in memory. Used to help * manage stack depth and optimize the number of external calls, when batching withdrawal operations. */ struct VerifiedWithdrawal { // amount to send to a podOwner from a proven withdrawal uint256 amountToSendGwei; // difference in shares to be recorded in the eigenPodManager, as a result of the withdrawal int256 sharesDeltaGwei; } enum PARTIAL_WITHDRAWAL_CLAIM_STATUS { REDEEMED, PENDING, FAILED } /// @notice Emitted when an ETH validator stakes via this eigenPod event EigenPodStaked(bytes pubkey); /// @notice Emitted when an ETH validator's withdrawal credentials are successfully verified to be pointed to this eigenPod event ValidatorRestaked(uint40 validatorIndex); /// @notice Emitted when an ETH validator's balance is proven to be updated. Here newValidatorBalanceGwei // is the validator's balance that is credited on EigenLayer. event ValidatorBalanceUpdated(uint40 validatorIndex, uint64 balanceTimestamp, uint64 newValidatorBalanceGwei); /// @notice Emitted when an ETH validator is prove to have withdrawn from the beacon chain event FullWithdrawalRedeemed( uint40 validatorIndex, uint64 withdrawalTimestamp, address indexed recipient, uint64 withdrawalAmountGwei ); /// @notice Emitted when a partial withdrawal claim is successfully redeemed event PartialWithdrawalRedeemed( uint40 validatorIndex, uint64 withdrawalTimestamp, address indexed recipient, uint64 partialWithdrawalAmountGwei ); /// @notice Emitted when restaked beacon chain ETH is withdrawn from the eigenPod. event RestakedBeaconChainETHWithdrawn(address indexed recipient, uint256 amount); /// @notice Emitted when podOwner enables restaking event RestakingActivated(address indexed podOwner); /// @notice Emitted when ETH is received via the `receive` fallback event NonBeaconChainETHReceived(uint256 amountReceived); /// @notice Emitted when ETH that was previously received via the `receive` fallback is withdrawn event NonBeaconChainETHWithdrawn(address indexed recipient, uint256 amountWithdrawn); /// @notice The max amount of eth, in gwei, that can be restaked per validator function MAX_RESTAKED_BALANCE_GWEI_PER_VALIDATOR() external view returns (uint64); /// @notice the amount of execution layer ETH in this contract that is staked in EigenLayer (i.e. withdrawn from beaconchain but not EigenLayer), function withdrawableRestakedExecutionLayerGwei() external view returns (uint64); /// @notice any ETH deposited into the EigenPod contract via the `receive` fallback function function nonBeaconChainETHBalanceWei() external view returns (uint256); /// @notice Used to initialize the pointers to contracts crucial to the pod's functionality, in beacon proxy construction from EigenPodManager function initialize(address owner) external; /// @notice Called by EigenPodManager when the owner wants to create another ETH validator. function stake(bytes calldata pubkey, bytes calldata signature, bytes32 depositDataRoot) external payable; /** * @notice Transfers `amountWei` in ether from this contract to the specified `recipient` address * @notice Called by EigenPodManager to withdrawBeaconChainETH that has been added to the EigenPod's balance due to a withdrawal from the beacon chain. * @dev The podOwner must have already proved sufficient withdrawals, so that this pod's `withdrawableRestakedExecutionLayerGwei` exceeds the * `amountWei` input (when converted to GWEI). * @dev Reverts if `amountWei` is not a whole Gwei amount */ function withdrawRestakedBeaconChainETH(address recipient, uint256 amount) external; /// @notice The single EigenPodManager for EigenLayer function eigenPodManager() external view returns (IEigenPodManager); /// @notice The owner of this EigenPod function podOwner() external view returns (address); /// @notice an indicator of whether or not the podOwner has ever "fully restaked" by successfully calling `verifyCorrectWithdrawalCredentials`. function hasRestaked() external view returns (bool); /** * @notice The latest timestamp at which the pod owner withdrew the balance of the pod, via calling `withdrawBeforeRestaking`. * @dev This variable is only updated when the `withdrawBeforeRestaking` function is called, which can only occur before `hasRestaked` is set to true for this pod. * Proofs for this pod are only valid against Beacon Chain state roots corresponding to timestamps after the stored `mostRecentWithdrawalTimestamp`. */ function mostRecentWithdrawalTimestamp() external view returns (uint64); /// @notice Returns the validatorInfo struct for the provided pubkeyHash function validatorPubkeyHashToInfo(bytes32 validatorPubkeyHash) external view returns (ValidatorInfo memory); /// @notice Returns the validatorInfo struct for the provided pubkey function validatorPubkeyToInfo(bytes calldata validatorPubkey) external view returns (ValidatorInfo memory); ///@notice mapping that tracks proven withdrawals function provenWithdrawal(bytes32 validatorPubkeyHash, uint64 slot) external view returns (bool); /// @notice This returns the status of a given validator function validatorStatus(bytes32 pubkeyHash) external view returns (VALIDATOR_STATUS); /// @notice This returns the status of a given validator pubkey function validatorStatus(bytes calldata validatorPubkey) external view returns (VALIDATOR_STATUS); /** * @notice This function verifies that the withdrawal credentials of validator(s) owned by the podOwner are pointed to * this contract. It also verifies the effective balance of the validator. It verifies the provided proof of the ETH validator against the beacon chain state * root, marks the validator as 'active' in EigenLayer, and credits the restaked ETH in Eigenlayer. * @param oracleTimestamp is the Beacon Chain timestamp whose state root the `proof` will be proven against. * @param validatorIndices is the list of indices of the validators being proven, refer to consensus specs * @param withdrawalCredentialProofs is an array of proofs, where each proof proves each ETH validator's balance and withdrawal credentials * against a beacon chain state root * @param validatorFields are the fields of the "Validator Container", refer to consensus specs * for details: https://github.com/ethereum/consensus-specs/blob/dev/specs/phase0/beacon-chain.md#validator */ function verifyWithdrawalCredentials( uint64 oracleTimestamp, BeaconChainProofs.StateRootProof calldata stateRootProof, uint40[] calldata validatorIndices, bytes[] calldata withdrawalCredentialProofs, bytes32[][] calldata validatorFields ) external; /** * @notice This function records an update (either increase or decrease) in the pod's balance in the StrategyManager. * It also verifies a merkle proof of the validator's current beacon chain balance. * @param oracleTimestamp The oracleTimestamp whose state root the `proof` will be proven against. * Must be within `VERIFY_BALANCE_UPDATE_WINDOW_SECONDS` of the current block. * @param validatorIndices is the list of indices of the validators being proven, refer to consensus specs * @param validatorFieldsProofs proofs against the `beaconStateRoot` for each validator in `validatorFields` * @param validatorFields are the fields of the "Validator Container", refer to consensus specs * @dev For more details on the Beacon Chain spec, see: https://github.com/ethereum/consensus-specs/blob/dev/specs/phase0/beacon-chain.md#validator */ function verifyBalanceUpdates( uint64 oracleTimestamp, uint40[] calldata validatorIndices, BeaconChainProofs.StateRootProof calldata stateRootProof, bytes[] calldata validatorFieldsProofs, bytes32[][] calldata validatorFields ) external; /** * @notice This function records full and partial withdrawals on behalf of one of the Ethereum validators for this EigenPod * @param oracleTimestamp is the timestamp of the oracle slot that the withdrawal is being proven against * @param withdrawalProofs is the information needed to check the veracity of the block numbers and withdrawals being proven * @param validatorFieldsProofs is the proof of the validator's fields' in the validator tree * @param withdrawalFields are the fields of the withdrawals being proven * @param validatorFields are the fields of the validators being proven */ function verifyAndProcessWithdrawals( uint64 oracleTimestamp, BeaconChainProofs.StateRootProof calldata stateRootProof, BeaconChainProofs.WithdrawalProof[] calldata withdrawalProofs, bytes[] calldata validatorFieldsProofs, bytes32[][] calldata validatorFields, bytes32[][] calldata withdrawalFields ) external; /** * @notice Called by the pod owner to activate restaking by withdrawing * all existing ETH from the pod and preventing further withdrawals via * "withdrawBeforeRestaking()" */ function activateRestaking() external; /// @notice Called by the pod owner to withdraw the balance of the pod when `hasRestaked` is set to false function withdrawBeforeRestaking() external; /// @notice Called by the pod owner to withdraw the nonBeaconChainETHBalanceWei function withdrawNonBeaconChainETHBalanceWei(address recipient, uint256 amountToWithdraw) external; /// @notice called by owner of a pod to remove any ERC20s deposited in the pod function recoverTokens(IERC20[] memory tokenList, uint256[] memory amountsToWithdraw, address recipient) external; }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity >=0.5.0; /** * @title Interface for the BeaconStateOracle contract. * @author Layr Labs, Inc. * @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service */ interface IBeaconChainOracle { /// @notice The block number to state root mapping. function timestampToBlockRoot(uint256 timestamp) external view returns (bytes32); }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity >=0.5.0; import "../interfaces/IPauserRegistry.sol"; /** * @title Adds pausability to a contract, with pausing & unpausing controlled by the `pauser` and `unpauser` of a PauserRegistry contract. * @author Layr Labs, Inc. * @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service * @notice Contracts that inherit from this contract may define their own `pause` and `unpause` (and/or related) functions. * These functions should be permissioned as "onlyPauser" which defers to a `PauserRegistry` for determining access control. * @dev Pausability is implemented using a uint256, which allows up to 256 different single bit-flags; each bit can potentially pause different functionality. * Inspiration for this was taken from the NearBridge design here https://etherscan.io/address/0x3FEFc5A4B1c02f21cBc8D3613643ba0635b9a873#code. * For the `pause` and `unpause` functions we've implemented, if you pause, you can only flip (any number of) switches to on/1 (aka "paused"), and if you unpause, * you can only flip (any number of) switches to off/0 (aka "paused"). * If you want a pauseXYZ function that just flips a single bit / "pausing flag", it will: * 1) 'bit-wise and' (aka `&`) a flag with the current paused state (as a uint256) * 2) update the paused state to this new value * @dev We note as well that we have chosen to identify flags by their *bit index* as opposed to their numerical value, so, e.g. defining `DEPOSITS_PAUSED = 3` * indicates specifically that if the *third bit* of `_paused` is flipped -- i.e. it is a '1' -- then deposits should be paused */ interface IPausable { /// @notice Emitted when the `pauserRegistry` is set to `newPauserRegistry`. event PauserRegistrySet(IPauserRegistry pauserRegistry, IPauserRegistry newPauserRegistry); /// @notice Emitted when the pause is triggered by `account`, and changed to `newPausedStatus`. event Paused(address indexed account, uint256 newPausedStatus); /// @notice Emitted when the pause is lifted by `account`, and changed to `newPausedStatus`. event Unpaused(address indexed account, uint256 newPausedStatus); /// @notice Address of the `PauserRegistry` contract that this contract defers to for determining access control (for pausing). function pauserRegistry() external view returns (IPauserRegistry); /** * @notice This function is used to pause an EigenLayer contract's functionality. * It is permissioned to the `pauser` address, which is expected to be a low threshold multisig. * @param newPausedStatus represents the new value for `_paused` to take, which means it may flip several bits at once. * @dev This function can only pause functionality, and thus cannot 'unflip' any bit in `_paused` from 1 to 0. */ function pause(uint256 newPausedStatus) external; /** * @notice Alias for `pause(type(uint256).max)`. */ function pauseAll() external; /** * @notice This function is used to unpause an EigenLayer contract's functionality. * It is permissioned to the `unpauser` address, which is expected to be a high threshold multisig or governance contract. * @param newPausedStatus represents the new value for `_paused` to take, which means it may flip several bits at once. * @dev This function can only unpause functionality, and thus cannot 'flip' any bit in `_paused` from 0 to 1. */ function unpause(uint256 newPausedStatus) external; /// @notice Returns the current paused status as a uint256. function paused() external view returns (uint256); /// @notice Returns 'true' if the `indexed`th bit of `_paused` is 1, and 'false' otherwise function paused(uint8 index) external view returns (bool); /// @notice Allows the unpauser to set a new pauser registry function setPauserRegistry(IPauserRegistry newPauserRegistry) external; }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.0; import "./Merkle.sol"; import "../libraries/Endian.sol"; //Utility library for parsing and PHASE0 beacon chain block headers //SSZ Spec: https://github.com/ethereum/consensus-specs/blob/dev/ssz/simple-serialize.md#merkleization //BeaconBlockHeader Spec: https://github.com/ethereum/consensus-specs/blob/dev/specs/phase0/beacon-chain.md#beaconblockheader //BeaconState Spec: https://github.com/ethereum/consensus-specs/blob/dev/specs/phase0/beacon-chain.md#beaconstate library BeaconChainProofs { // constants are the number of fields and the heights of the different merkle trees used in merkleizing beacon chain containers uint256 internal constant BEACON_BLOCK_HEADER_FIELD_TREE_HEIGHT = 3; uint256 internal constant BEACON_BLOCK_BODY_FIELD_TREE_HEIGHT = 4; uint256 internal constant BEACON_STATE_FIELD_TREE_HEIGHT = 5; uint256 internal constant VALIDATOR_FIELD_TREE_HEIGHT = 3; //Note: changed in the deneb hard fork from 4->5 uint256 internal constant EXECUTION_PAYLOAD_HEADER_FIELD_TREE_HEIGHT_DENEB = 5; uint256 internal constant EXECUTION_PAYLOAD_HEADER_FIELD_TREE_HEIGHT_CAPELLA = 4; // SLOTS_PER_HISTORICAL_ROOT = 2**13, so tree height is 13 uint256 internal constant BLOCK_ROOTS_TREE_HEIGHT = 13; //HISTORICAL_ROOTS_LIMIT = 2**24, so tree height is 24 uint256 internal constant HISTORICAL_SUMMARIES_TREE_HEIGHT = 24; //Index of block_summary_root in historical_summary container uint256 internal constant BLOCK_SUMMARY_ROOT_INDEX = 0; // tree height for hash tree of an individual withdrawal container uint256 internal constant WITHDRAWAL_FIELD_TREE_HEIGHT = 2; uint256 internal constant VALIDATOR_TREE_HEIGHT = 40; // MAX_WITHDRAWALS_PER_PAYLOAD = 2**4, making tree height = 4 uint256 internal constant WITHDRAWALS_TREE_HEIGHT = 4; //in beacon block body https://github.com/ethereum/consensus-specs/blob/dev/specs/capella/beacon-chain.md#beaconblockbody uint256 internal constant EXECUTION_PAYLOAD_INDEX = 9; // in beacon block header https://github.com/ethereum/consensus-specs/blob/dev/specs/phase0/beacon-chain.md#beaconblockheader uint256 internal constant SLOT_INDEX = 0; uint256 internal constant STATE_ROOT_INDEX = 3; uint256 internal constant BODY_ROOT_INDEX = 4; // in beacon state https://github.com/ethereum/consensus-specs/blob/dev/specs/capella/beacon-chain.md#beaconstate uint256 internal constant VALIDATOR_TREE_ROOT_INDEX = 11; uint256 internal constant HISTORICAL_SUMMARIES_INDEX = 27; // in validator https://github.com/ethereum/consensus-specs/blob/dev/specs/phase0/beacon-chain.md#validator uint256 internal constant VALIDATOR_PUBKEY_INDEX = 0; uint256 internal constant VALIDATOR_WITHDRAWAL_CREDENTIALS_INDEX = 1; uint256 internal constant VALIDATOR_BALANCE_INDEX = 2; uint256 internal constant VALIDATOR_WITHDRAWABLE_EPOCH_INDEX = 7; // in execution payload header uint256 internal constant TIMESTAMP_INDEX = 9; //in execution payload uint256 internal constant WITHDRAWALS_INDEX = 14; // in withdrawal uint256 internal constant WITHDRAWAL_VALIDATOR_INDEX_INDEX = 1; uint256 internal constant WITHDRAWAL_VALIDATOR_AMOUNT_INDEX = 3; //Misc Constants /// @notice The number of slots each epoch in the beacon chain uint64 internal constant SLOTS_PER_EPOCH = 32; /// @notice The number of seconds in a slot in the beacon chain uint64 internal constant SECONDS_PER_SLOT = 12; /// @notice Number of seconds per epoch: 384 == 32 slots/epoch * 12 seconds/slot uint64 internal constant SECONDS_PER_EPOCH = SLOTS_PER_EPOCH * SECONDS_PER_SLOT; bytes8 internal constant UINT64_MASK = 0xffffffffffffffff; /// @notice This struct contains the merkle proofs and leaves needed to verify a partial/full withdrawal struct WithdrawalProof { bytes withdrawalProof; bytes slotProof; bytes executionPayloadProof; bytes timestampProof; bytes historicalSummaryBlockRootProof; uint64 blockRootIndex; uint64 historicalSummaryIndex; uint64 withdrawalIndex; bytes32 blockRoot; bytes32 slotRoot; bytes32 timestampRoot; bytes32 executionPayloadRoot; } /// @notice This struct contains the root and proof for verifying the state root against the oracle block root struct StateRootProof { bytes32 beaconStateRoot; bytes proof; } /** * @notice This function verifies merkle proofs of the fields of a certain validator against a beacon chain state root * @param validatorIndex the index of the proven validator * @param beaconStateRoot is the beacon chain state root to be proven against. * @param validatorFieldsProof is the data used in proving the validator's fields * @param validatorFields the claimed fields of the validator */ function verifyValidatorFields( bytes32 beaconStateRoot, bytes32[] calldata validatorFields, bytes calldata validatorFieldsProof, uint40 validatorIndex ) internal view { require( validatorFields.length == 2 ** VALIDATOR_FIELD_TREE_HEIGHT, "BeaconChainProofs.verifyValidatorFields: Validator fields has incorrect length" ); /** * Note: the length of the validator merkle proof is BeaconChainProofs.VALIDATOR_TREE_HEIGHT + 1. * There is an additional layer added by hashing the root with the length of the validator list */ require( validatorFieldsProof.length == 32 * ((VALIDATOR_TREE_HEIGHT + 1) + BEACON_STATE_FIELD_TREE_HEIGHT), "BeaconChainProofs.verifyValidatorFields: Proof has incorrect length" ); uint256 index = (VALIDATOR_TREE_ROOT_INDEX << (VALIDATOR_TREE_HEIGHT + 1)) | uint256(validatorIndex); // merkleize the validatorFields to get the leaf to prove bytes32 validatorRoot = Merkle.merkleizeSha256(validatorFields); // verify the proof of the validatorRoot against the beaconStateRoot require( Merkle.verifyInclusionSha256({ proof: validatorFieldsProof, root: beaconStateRoot, leaf: validatorRoot, index: index }), "BeaconChainProofs.verifyValidatorFields: Invalid merkle proof" ); } /** * @notice This function verifies the latestBlockHeader against the state root. the latestBlockHeader is * a tracked in the beacon state. * @param beaconStateRoot is the beacon chain state root to be proven against. * @param stateRootProof is the provided merkle proof * @param latestBlockRoot is hashtree root of the latest block header in the beacon state */ function verifyStateRootAgainstLatestBlockRoot( bytes32 latestBlockRoot, bytes32 beaconStateRoot, bytes calldata stateRootProof ) internal view { require( stateRootProof.length == 32 * (BEACON_BLOCK_HEADER_FIELD_TREE_HEIGHT), "BeaconChainProofs.verifyStateRootAgainstLatestBlockRoot: Proof has incorrect length" ); //Next we verify the slot against the blockRoot require( Merkle.verifyInclusionSha256({ proof: stateRootProof, root: latestBlockRoot, leaf: beaconStateRoot, index: STATE_ROOT_INDEX }), "BeaconChainProofs.verifyStateRootAgainstLatestBlockRoot: Invalid latest block header root merkle proof" ); } /** * @notice This function verifies the slot and the withdrawal fields for a given withdrawal * @param withdrawalProof is the provided set of merkle proofs * @param withdrawalFields is the serialized withdrawal container to be proven */ function verifyWithdrawal( bytes32 beaconStateRoot, bytes32[] calldata withdrawalFields, WithdrawalProof calldata withdrawalProof, uint64 denebForkTimestamp ) internal view { require( withdrawalFields.length == 2 ** WITHDRAWAL_FIELD_TREE_HEIGHT, "BeaconChainProofs.verifyWithdrawal: withdrawalFields has incorrect length" ); require( withdrawalProof.blockRootIndex < 2 ** BLOCK_ROOTS_TREE_HEIGHT, "BeaconChainProofs.verifyWithdrawal: blockRootIndex is too large" ); require( withdrawalProof.withdrawalIndex < 2 ** WITHDRAWALS_TREE_HEIGHT, "BeaconChainProofs.verifyWithdrawal: withdrawalIndex is too large" ); require( withdrawalProof.historicalSummaryIndex < 2 ** HISTORICAL_SUMMARIES_TREE_HEIGHT, "BeaconChainProofs.verifyWithdrawal: historicalSummaryIndex is too large" ); //Note: post deneb hard fork, the number of exection payload header fields increased from 15->17, adding an extra level to the tree height uint256 executionPayloadHeaderFieldTreeHeight = (getWithdrawalTimestamp(withdrawalProof) < denebForkTimestamp) ? EXECUTION_PAYLOAD_HEADER_FIELD_TREE_HEIGHT_CAPELLA : EXECUTION_PAYLOAD_HEADER_FIELD_TREE_HEIGHT_DENEB; require( withdrawalProof.withdrawalProof.length == 32 * (executionPayloadHeaderFieldTreeHeight + WITHDRAWALS_TREE_HEIGHT + 1), "BeaconChainProofs.verifyWithdrawal: withdrawalProof has incorrect length" ); require( withdrawalProof.executionPayloadProof.length == 32 * (BEACON_BLOCK_HEADER_FIELD_TREE_HEIGHT + BEACON_BLOCK_BODY_FIELD_TREE_HEIGHT), "BeaconChainProofs.verifyWithdrawal: executionPayloadProof has incorrect length" ); require( withdrawalProof.slotProof.length == 32 * (BEACON_BLOCK_HEADER_FIELD_TREE_HEIGHT), "BeaconChainProofs.verifyWithdrawal: slotProof has incorrect length" ); require( withdrawalProof.timestampProof.length == 32 * (executionPayloadHeaderFieldTreeHeight), "BeaconChainProofs.verifyWithdrawal: timestampProof has incorrect length" ); require( withdrawalProof.historicalSummaryBlockRootProof.length == 32 * (BEACON_STATE_FIELD_TREE_HEIGHT + (HISTORICAL_SUMMARIES_TREE_HEIGHT + 1) + 1 + (BLOCK_ROOTS_TREE_HEIGHT)), "BeaconChainProofs.verifyWithdrawal: historicalSummaryBlockRootProof has incorrect length" ); /** * Note: Here, the "1" in "1 + (BLOCK_ROOTS_TREE_HEIGHT)" signifies that extra step of choosing the "block_root_summary" within the individual * "historical_summary". Everywhere else it signifies merkelize_with_mixin, where the length of an array is hashed with the root of the array, * but not here. */ uint256 historicalBlockHeaderIndex = ( HISTORICAL_SUMMARIES_INDEX << ((HISTORICAL_SUMMARIES_TREE_HEIGHT + 1) + 1 + (BLOCK_ROOTS_TREE_HEIGHT)) ) | (uint256(withdrawalProof.historicalSummaryIndex) << (1 + (BLOCK_ROOTS_TREE_HEIGHT))) | (BLOCK_SUMMARY_ROOT_INDEX << (BLOCK_ROOTS_TREE_HEIGHT)) | uint256(withdrawalProof.blockRootIndex); require( Merkle.verifyInclusionSha256({ proof: withdrawalProof.historicalSummaryBlockRootProof, root: beaconStateRoot, leaf: withdrawalProof.blockRoot, index: historicalBlockHeaderIndex }), "BeaconChainProofs.verifyWithdrawal: Invalid historicalsummary merkle proof" ); //Next we verify the slot against the blockRoot require( Merkle.verifyInclusionSha256({ proof: withdrawalProof.slotProof, root: withdrawalProof.blockRoot, leaf: withdrawalProof.slotRoot, index: SLOT_INDEX }), "BeaconChainProofs.verifyWithdrawal: Invalid slot merkle proof" ); { // Next we verify the executionPayloadRoot against the blockRoot uint256 executionPayloadIndex = (BODY_ROOT_INDEX << (BEACON_BLOCK_BODY_FIELD_TREE_HEIGHT)) | EXECUTION_PAYLOAD_INDEX; require( Merkle.verifyInclusionSha256({ proof: withdrawalProof.executionPayloadProof, root: withdrawalProof.blockRoot, leaf: withdrawalProof.executionPayloadRoot, index: executionPayloadIndex }), "BeaconChainProofs.verifyWithdrawal: Invalid executionPayload merkle proof" ); } // Next we verify the timestampRoot against the executionPayload root require( Merkle.verifyInclusionSha256({ proof: withdrawalProof.timestampProof, root: withdrawalProof.executionPayloadRoot, leaf: withdrawalProof.timestampRoot, index: TIMESTAMP_INDEX }), "BeaconChainProofs.verifyWithdrawal: Invalid timestamp merkle proof" ); { /** * Next we verify the withdrawal fields against the executionPayloadRoot: * First we compute the withdrawal_index, then we merkleize the * withdrawalFields container to calculate the withdrawalRoot. * * Note: Merkleization of the withdrawals root tree uses MerkleizeWithMixin, i.e., the length of the array is hashed with the root of * the array. Thus we shift the WITHDRAWALS_INDEX over by WITHDRAWALS_TREE_HEIGHT + 1 and not just WITHDRAWALS_TREE_HEIGHT. */ uint256 withdrawalIndex = (WITHDRAWALS_INDEX << (WITHDRAWALS_TREE_HEIGHT + 1)) | uint256(withdrawalProof.withdrawalIndex); bytes32 withdrawalRoot = Merkle.merkleizeSha256(withdrawalFields); require( Merkle.verifyInclusionSha256({ proof: withdrawalProof.withdrawalProof, root: withdrawalProof.executionPayloadRoot, leaf: withdrawalRoot, index: withdrawalIndex }), "BeaconChainProofs.verifyWithdrawal: Invalid withdrawal merkle proof" ); } } /** * @notice This function replicates the ssz hashing of a validator's pubkey, outlined below: * hh := ssz.NewHasher() * hh.PutBytes(validatorPubkey[:]) * validatorPubkeyHash := hh.Hash() * hh.Reset() */ function hashValidatorBLSPubkey(bytes memory validatorPubkey) internal pure returns (bytes32 pubkeyHash) { require(validatorPubkey.length == 48, "Input should be 48 bytes in length"); return sha256(abi.encodePacked(validatorPubkey, bytes16(0))); } /** * @dev Retrieve the withdrawal timestamp */ function getWithdrawalTimestamp(WithdrawalProof memory withdrawalProof) internal pure returns (uint64) { return Endian.fromLittleEndianUint64(withdrawalProof.timestampRoot); } /** * @dev Converts the withdrawal's slot to an epoch */ function getWithdrawalEpoch(WithdrawalProof memory withdrawalProof) internal pure returns (uint64) { return Endian.fromLittleEndianUint64(withdrawalProof.slotRoot) / SLOTS_PER_EPOCH; } /** * Indices for validator fields (refer to consensus specs): * 0: pubkey * 1: withdrawal credentials * 2: effective balance * 3: slashed? * 4: activation elligibility epoch * 5: activation epoch * 6: exit epoch * 7: withdrawable epoch */ /** * @dev Retrieves a validator's pubkey hash */ function getPubkeyHash(bytes32[] memory validatorFields) internal pure returns (bytes32) { return validatorFields[VALIDATOR_PUBKEY_INDEX]; } function getWithdrawalCredentials(bytes32[] memory validatorFields) internal pure returns (bytes32) { return validatorFields[VALIDATOR_WITHDRAWAL_CREDENTIALS_INDEX]; } /** * @dev Retrieves a validator's effective balance (in gwei) */ function getEffectiveBalanceGwei(bytes32[] memory validatorFields) internal pure returns (uint64) { return Endian.fromLittleEndianUint64(validatorFields[VALIDATOR_BALANCE_INDEX]); } /** * @dev Retrieves a validator's withdrawable epoch */ function getWithdrawableEpoch(bytes32[] memory validatorFields) internal pure returns (uint64) { return Endian.fromLittleEndianUint64(validatorFields[VALIDATOR_WITHDRAWABLE_EPOCH_INDEX]); } /** * Indices for withdrawal fields (refer to consensus specs): * 0: withdrawal index * 1: validator index * 2: execution address * 3: withdrawal amount */ /** * @dev Retrieves a withdrawal's validator index */ function getValidatorIndex(bytes32[] memory withdrawalFields) internal pure returns (uint40) { return uint40(Endian.fromLittleEndianUint64(withdrawalFields[WITHDRAWAL_VALIDATOR_INDEX_INDEX])); } /** * @dev Retrieves a withdrawal's withdrawal amount (in gwei) */ function getWithdrawalAmountGwei(bytes32[] memory withdrawalFields) internal pure returns (uint64) { return Endian.fromLittleEndianUint64(withdrawalFields[WITHDRAWAL_VALIDATOR_AMOUNT_INDEX]); } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity >=0.5.0; /** * @title Interface for the `PauserRegistry` contract. * @author Layr Labs, Inc. * @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service */ interface IPauserRegistry { event PauserStatusChanged(address pauser, bool canPause); event UnpauserChanged(address previousUnpauser, address newUnpauser); /// @notice Mapping of addresses to whether they hold the pauser role. function isPauser(address pauser) external view returns (bool); /// @notice Unique address that holds the unpauser role. Capable of changing *both* the pauser and unpauser addresses. function unpauser() external view returns (address); }
// SPDX-License-Identifier: MIT // Adapted from OpenZeppelin Contracts (last updated v4.8.0) (utils/cryptography/MerkleProof.sol) pragma solidity ^0.8.0; /** * @dev These functions deal with verification of Merkle Tree proofs. * * The tree and the proofs can be generated using our * https://github.com/OpenZeppelin/merkle-tree[JavaScript library]. * You will find a quickstart guide in the readme. * * WARNING: You should avoid using leaf values that are 64 bytes long prior to * hashing, or use a hash function other than keccak256 for hashing leaves. * This is because the concatenation of a sorted pair of internal nodes in * the merkle tree could be reinterpreted as a leaf value. * OpenZeppelin's JavaScript library generates merkle trees that are safe * against this attack out of the box. */ library Merkle { /** * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt * hash matches the root of the tree. The tree is built assuming `leaf` is * the 0 indexed `index`'th leaf from the bottom left of the tree. * * Note this is for a Merkle tree using the keccak/sha3 hash function */ function verifyInclusionKeccak(bytes memory proof, bytes32 root, bytes32 leaf, uint256 index) internal pure returns (bool) { return processInclusionProofKeccak(proof, leaf, index) == root; } /** * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt * hash matches the root of the tree. The tree is built assuming `leaf` is * the 0 indexed `index`'th leaf from the bottom left of the tree. * * _Available since v4.4._ * * Note this is for a Merkle tree using the keccak/sha3 hash function */ function processInclusionProofKeccak(bytes memory proof, bytes32 leaf, uint256 index) internal pure returns (bytes32) { require( proof.length != 0 && proof.length % 32 == 0, "Merkle.processInclusionProofKeccak: proof length should be a non-zero multiple of 32" ); bytes32 computedHash = leaf; for (uint256 i = 32; i <= proof.length; i += 32) { if (index % 2 == 0) { // if ith bit of index is 0, then computedHash is a left sibling assembly { mstore(0x00, computedHash) mstore(0x20, mload(add(proof, i))) computedHash := keccak256(0x00, 0x40) index := div(index, 2) } } else { // if ith bit of index is 1, then computedHash is a right sibling assembly { mstore(0x00, mload(add(proof, i))) mstore(0x20, computedHash) computedHash := keccak256(0x00, 0x40) index := div(index, 2) } } } return computedHash; } /** * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt * hash matches the root of the tree. The tree is built assuming `leaf` is * the 0 indexed `index`'th leaf from the bottom left of the tree. * * Note this is for a Merkle tree using the sha256 hash function */ function verifyInclusionSha256(bytes memory proof, bytes32 root, bytes32 leaf, uint256 index) internal view returns (bool) { return processInclusionProofSha256(proof, leaf, index) == root; } /** * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt * hash matches the root of the tree. The tree is built assuming `leaf` is * the 0 indexed `index`'th leaf from the bottom left of the tree. * * _Available since v4.4._ * * Note this is for a Merkle tree using the sha256 hash function */ function processInclusionProofSha256(bytes memory proof, bytes32 leaf, uint256 index) internal view returns (bytes32) { require( proof.length != 0 && proof.length % 32 == 0, "Merkle.processInclusionProofSha256: proof length should be a non-zero multiple of 32" ); bytes32[1] memory computedHash = [leaf]; for (uint256 i = 32; i <= proof.length; i += 32) { if (index % 2 == 0) { // if ith bit of index is 0, then computedHash is a left sibling assembly { mstore(0x00, mload(computedHash)) mstore(0x20, mload(add(proof, i))) if iszero(staticcall(sub(gas(), 2000), 2, 0x00, 0x40, computedHash, 0x20)) { revert(0, 0) } index := div(index, 2) } } else { // if ith bit of index is 1, then computedHash is a right sibling assembly { mstore(0x00, mload(add(proof, i))) mstore(0x20, mload(computedHash)) if iszero(staticcall(sub(gas(), 2000), 2, 0x00, 0x40, computedHash, 0x20)) { revert(0, 0) } index := div(index, 2) } } } return computedHash[0]; } /** * @notice this function returns the merkle root of a tree created from a set of leaves using sha256 as its hash function * @param leaves the leaves of the merkle tree * @return The computed Merkle root of the tree. * @dev A pre-condition to this function is that leaves.length is a power of two. If not, the function will merkleize the inputs incorrectly. */ function merkleizeSha256(bytes32[] memory leaves) internal pure returns (bytes32) { //there are half as many nodes in the layer above the leaves uint256 numNodesInLayer = leaves.length / 2; //create a layer to store the internal nodes bytes32[] memory layer = new bytes32[](numNodesInLayer); //fill the layer with the pairwise hashes of the leaves for (uint256 i = 0; i < numNodesInLayer; i++) { layer[i] = sha256(abi.encodePacked(leaves[2 * i], leaves[2 * i + 1])); } //the next layer above has half as many nodes numNodesInLayer /= 2; //while we haven't computed the root while (numNodesInLayer != 0) { //overwrite the first numNodesInLayer nodes in layer with the pairwise hashes of their children for (uint256 i = 0; i < numNodesInLayer; i++) { layer[i] = sha256(abi.encodePacked(layer[2 * i], layer[2 * i + 1])); } //the next layer above has half as many nodes numNodesInLayer /= 2; } //the first node in the layer is the root return layer[0]; } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.0; library Endian { /** * @notice Converts a little endian-formatted uint64 to a big endian-formatted uint64 * @param lenum little endian-formatted uint64 input, provided as 'bytes32' type * @return n The big endian-formatted uint64 * @dev Note that the input is formatted as a 'bytes32' type (i.e. 256 bits), but it is immediately truncated to a uint64 (i.e. 64 bits) * through a right-shift/shr operation. */ function fromLittleEndianUint64(bytes32 lenum) internal pure returns (uint64 n) { // the number needs to be stored in little-endian encoding (ie in bytes 0-8) n = uint64(uint256(lenum >> 192)); return (n >> 56) | ((0x00FF000000000000 & n) >> 40) | ((0x0000FF0000000000 & n) >> 24) | ((0x000000FF00000000 & n) >> 8) | ((0x00000000FF000000 & n) << 8) | ((0x0000000000FF0000 & n) << 24) | ((0x000000000000FF00 & n) << 40) | ((0x00000000000000FF & n) << 56); } }
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[{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"serviceManager","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"AethosClient__Unauthorized","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balances","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"addr","type":"address"}],"name":"getBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"policyID","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"components":[{"internalType":"string","name":"taskId","type":"string"},{"internalType":"uint256","name":"expireByBlockNumber","type":"uint256"},{"internalType":"address[]","name":"signerAddresses","type":"address[]"},{"internalType":"bytes[]","name":"signatures","type":"bytes[]"}],"internalType":"struct AethosMessage","name":"aethosMessage","type":"tuple"}],"name":"sendCoin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"serviceManager","outputs":[{"internalType":"contract IServiceManager","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"_policyID","type":"string"}],"name":"setPolicy","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"msgSender","type":"address"},{"internalType":"address","name":"target","type":"address"},{"internalType":"bytes4","name":"functionSig","type":"bytes4"},{"internalType":"bytes","name":"functionArgs","type":"bytes"},{"internalType":"string","name":"policyID","type":"string"},{"internalType":"uint32","name":"quorumThresholdCount","type":"uint32"}],"internalType":"struct DTMTaskParams","name":"_params","type":"tuple"}],"name":"submitTask","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
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Deployed Bytecode
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
0000000000000000000000003ce33553e706E3bac85F7552A98B5bf7a449C06b000000000000000000000000ba54ae6056f3eeff31651c5e1fdb8b3b0efb8862
-----Decoded View---------------
Arg [0] : owner (address): 0x3ce33553e706E3bac85F7552A98B5bf7a449C06b
Arg [1] : serviceManager (address): 0xBa54aE6056f3EEFF31651C5E1fDB8B3b0eFB8862
-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 0000000000000000000000003ce33553e706E3bac85F7552A98B5bf7a449C06b
Arg [1] : 000000000000000000000000ba54ae6056f3eeff31651c5e1fdb8b3b0efb8862
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.