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Contract Source Code Verified (Exact Match)
Contract Name:
AlignedLayerServiceManager
Compiler Version
v0.8.24+commit.e11b9ed9
Optimization Enabled:
Yes with 200 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.12; import {ServiceManagerBase, IAVSDirectory} from "eigenlayer-middleware/ServiceManagerBase.sol"; import {BLSSignatureChecker} from "eigenlayer-middleware/BLSSignatureChecker.sol"; import {IRegistryCoordinator} from "eigenlayer-middleware/interfaces/IRegistryCoordinator.sol"; import {IStakeRegistry} from "eigenlayer-middleware/interfaces/IStakeRegistry.sol"; import {Merkle} from "eigenlayer-core/contracts/libraries/Merkle.sol"; import {IRewardsCoordinator} from "eigenlayer-contracts/src/contracts/interfaces/IRewardsCoordinator.sol"; import {AlignedLayerServiceManagerStorage} from "./AlignedLayerServiceManagerStorage.sol"; import {IAlignedLayerServiceManager} from "./IAlignedLayerServiceManager.sol"; /** * @title Primary entrypoint for procuring services from Aligned. */ contract AlignedLayerServiceManager is IAlignedLayerServiceManager, ServiceManagerBase, BLSSignatureChecker, AlignedLayerServiceManagerStorage { uint256 internal constant THRESHOLD_DENOMINATOR = 100; uint8 internal constant QUORUM_THRESHOLD_PERCENTAGE = 67; constructor( IAVSDirectory __avsDirectory, IRewardsCoordinator __rewardsCoordinator, IRegistryCoordinator __registryCoordinator, IStakeRegistry __stakeRegistry ) BLSSignatureChecker(__registryCoordinator) ServiceManagerBase( __avsDirectory, __rewardsCoordinator, __registryCoordinator, __stakeRegistry ) { _disableInitializers(); } // @param _rewardsInitiator The address which is allowed to create AVS rewards submissions. function initialize( address _initialOwner, address _rewardsInitiator, address _alignedAggregator ) public initializer { __ServiceManagerBase_init(_initialOwner, _rewardsInitiator); alignedAggregator = _alignedAggregator; //can't do setAggregator(aggregator) since caller is not the owner } // This function is to be run only on upgrade // If a new contract is deployed, this function should be removed // Because this new value is also added in the initializer function initializeAggregator( address _alignedAggregator ) public reinitializer(2) { setAggregator(_alignedAggregator); } function createNewTask( bytes32 batchMerkleRoot, string calldata batchDataPointer, uint256 respondToTaskFeeLimit ) external payable { bytes32 batchIdentifier = keccak256( abi.encodePacked(batchMerkleRoot, msg.sender) ); if (batchesState[batchIdentifier].taskCreatedBlock != 0) { revert BatchAlreadySubmitted(batchIdentifier); } if (msg.value > 0) { batchersBalances[msg.sender] += msg.value; emit BatcherBalanceUpdated( msg.sender, batchersBalances[msg.sender] ); } if (batchersBalances[msg.sender] < respondToTaskFeeLimit) { revert InsufficientFunds( msg.sender, respondToTaskFeeLimit, batchersBalances[msg.sender] ); } BatchState memory batchState; batchState.taskCreatedBlock = uint32(block.number); batchState.responded = false; batchState.respondToTaskFeeLimit = respondToTaskFeeLimit; batchesState[batchIdentifier] = batchState; // For aggregator and operators in v0.7.0 emit NewBatchV3( batchMerkleRoot, msg.sender, uint32(block.number), batchDataPointer, respondToTaskFeeLimit ); } function respondToTaskV2( // (batchMerkleRoot,senderAddress) is signed as a way to verify the batch was right bytes32 batchMerkleRoot, address senderAddress, NonSignerStakesAndSignature memory nonSignerStakesAndSignature ) external onlyAggregator { uint256 initialGasLeft = gasleft(); bytes32 batchIdentifierHash = keccak256( abi.encodePacked(batchMerkleRoot, senderAddress) ); BatchState storage currentBatch = batchesState[batchIdentifierHash]; // Note: This is a hacky solidity way to see that the element exists // Value 0 would mean that the task is in block 0 so this can't happen. if (currentBatch.taskCreatedBlock == 0) { revert BatchDoesNotExist(batchIdentifierHash); } // Check task hasn't been responsed yet if (currentBatch.responded) { revert BatchAlreadyResponded(batchIdentifierHash); } currentBatch.responded = true; // Check that batcher has enough funds to fund response if (batchersBalances[senderAddress] < currentBatch.respondToTaskFeeLimit) { revert InsufficientFunds( senderAddress, currentBatch.respondToTaskFeeLimit, batchersBalances[senderAddress] ); } /* CHECKING SIGNATURES & WHETHER THRESHOLD IS MET OR NOT */ // check that aggregated BLS signature is valid (QuorumStakeTotals memory quorumStakeTotals, ) = checkSignatures( batchIdentifierHash, currentBatch.taskCreatedBlock, nonSignerStakesAndSignature ); // check that signatories own at least a threshold percentage of each quourm if ( quorumStakeTotals.signedStakeForQuorum[0] * THRESHOLD_DENOMINATOR < quorumStakeTotals.totalStakeForQuorum[0] * QUORUM_THRESHOLD_PERCENTAGE ) { revert InvalidQuorumThreshold( quorumStakeTotals.signedStakeForQuorum[0] * THRESHOLD_DENOMINATOR, quorumStakeTotals.totalStakeForQuorum[0] * QUORUM_THRESHOLD_PERCENTAGE ); } emit BatchVerified(batchMerkleRoot, senderAddress); // 70k was measured by trial and error until the aggregator got paid a bit over what it needed uint256 txCost = (initialGasLeft - gasleft() + 70_000) * tx.gasprice; if (txCost > currentBatch.respondToTaskFeeLimit) { revert ExceededMaxRespondFee( currentBatch.respondToTaskFeeLimit, txCost ); } // Subtract the txCost from the batcher's balance batchersBalances[senderAddress] -= txCost; emit BatcherBalanceUpdated( senderAddress, batchersBalances[senderAddress] ); payable(alignedAggregator).transfer(txCost); } function verifyBatchInclusion( bytes32 proofCommitment, bytes32 pubInputCommitment, bytes32 provingSystemAuxDataCommitment, bytes20 proofGeneratorAddr, bytes32 batchMerkleRoot, bytes memory merkleProof, uint256 verificationDataBatchIndex, address senderAddress ) external view returns (bool) { bytes32 batchIdentifier; if (senderAddress == address(0)) { batchIdentifier = batchMerkleRoot; } else { batchIdentifier = keccak256( abi.encodePacked(batchMerkleRoot, senderAddress) ); } if (batchesState[batchIdentifier].taskCreatedBlock == 0) { return false; } if (!batchesState[batchIdentifier].responded) { return false; } bytes memory leaf = abi.encodePacked( proofCommitment, pubInputCommitment, provingSystemAuxDataCommitment, proofGeneratorAddr ); bytes32 hashedLeaf = keccak256(leaf); return Merkle.verifyInclusionKeccak( merkleProof, batchMerkleRoot, hashedLeaf, verificationDataBatchIndex ); } // Old function signature for backwards compatibility function verifyBatchInclusion( bytes32 proofCommitment, bytes32 pubInputCommitment, bytes32 provingSystemAuxDataCommitment, bytes20 proofGeneratorAddr, bytes32 batchMerkleRoot, bytes memory merkleProof, uint256 verificationDataBatchIndex ) external view returns (bool) { return this.verifyBatchInclusion( proofCommitment, pubInputCommitment, provingSystemAuxDataCommitment, proofGeneratorAddr, batchMerkleRoot, merkleProof, verificationDataBatchIndex, address(0) ); } function setAggregator(address _alignedAggregator) public onlyOwner { alignedAggregator = _alignedAggregator; } function withdraw(uint256 amount) external { if (batchersBalances[msg.sender] < amount) { revert InsufficientFunds( msg.sender, amount, batchersBalances[msg.sender] ); } batchersBalances[msg.sender] -= amount; emit BatcherBalanceUpdated(msg.sender, batchersBalances[msg.sender]); payable(msg.sender).transfer(amount); } function balanceOf(address account) public view returns (uint256) { return batchersBalances[account]; } function depositToBatcher(address account) external payable { _depositToBatcher(account, msg.value); } function _depositToBatcher(address account, uint256 amount) internal { if (amount == 0) { revert InvalidDepositAmount(amount); } batchersBalances[account] += amount; emit BatcherBalanceUpdated(account, batchersBalances[account]); } receive() external payable { _depositToBatcher(msg.sender, msg.value); } function checkPublicInput( bytes calldata publicInput, bytes32 hash ) public pure returns (bool) { return keccak256(publicInput) == hash; } modifier onlyAggregator() { if (msg.sender != alignedAggregator) { revert SenderIsNotAggregator(msg.sender, alignedAggregator); } _; } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.12; import {OwnableUpgradeable} from "@openzeppelin-upgrades/contracts/access/OwnableUpgradeable.sol"; import {Initializable} from "@openzeppelin-upgrades/contracts/proxy/utils/Initializable.sol"; import {ISignatureUtils} from "eigenlayer-contracts/src/contracts/interfaces/ISignatureUtils.sol"; import {IAVSDirectory} from "eigenlayer-contracts/src/contracts/interfaces/IAVSDirectory.sol"; import {IRewardsCoordinator} from "eigenlayer-contracts/src/contracts/interfaces/IRewardsCoordinator.sol"; import {ServiceManagerBaseStorage} from "./ServiceManagerBaseStorage.sol"; import {IServiceManager} from "./interfaces/IServiceManager.sol"; import {IRegistryCoordinator} from "./interfaces/IRegistryCoordinator.sol"; import {IStakeRegistry} from "./interfaces/IStakeRegistry.sol"; import {BitmapUtils} from "./libraries/BitmapUtils.sol"; /** * @title Minimal implementation of a ServiceManager-type contract. * This contract can be inherited from or simply used as a point-of-reference. * @author Layr Labs, Inc. */ abstract contract ServiceManagerBase is OwnableUpgradeable, ServiceManagerBaseStorage { using BitmapUtils for *; /// @notice when applied to a function, only allows the RegistryCoordinator to call it modifier onlyRegistryCoordinator() { require( msg.sender == address(_registryCoordinator), "ServiceManagerBase.onlyRegistryCoordinator: caller is not the registry coordinator" ); _; } /// @notice only rewardsInitiator can call createAVSRewardsSubmission modifier onlyRewardsInitiator() { require( msg.sender == rewardsInitiator, "ServiceManagerBase.onlyRewardsInitiator: caller is not the rewards initiator" ); _; } /// @notice Sets the (immutable) `_registryCoordinator` address constructor( IAVSDirectory __avsDirectory, IRewardsCoordinator __rewardsCoordinator, IRegistryCoordinator __registryCoordinator, IStakeRegistry __stakeRegistry ) ServiceManagerBaseStorage( __avsDirectory, __rewardsCoordinator, __registryCoordinator, __stakeRegistry ) { _disableInitializers(); } function __ServiceManagerBase_init( address initialOwner, address _rewardsInitiator ) internal virtual onlyInitializing { _transferOwnership(initialOwner); _setRewardsInitiator(_rewardsInitiator); } /** * @notice Updates the metadata URI for the AVS * @param _metadataURI is the metadata URI for the AVS * @dev only callable by the owner */ function updateAVSMetadataURI(string memory _metadataURI) public virtual onlyOwner { _avsDirectory.updateAVSMetadataURI(_metadataURI); } /** * @notice Creates a new rewards submission to the EigenLayer RewardsCoordinator contract, to be split amongst the * set of stakers delegated to operators who are registered to this `avs` * @param rewardsSubmissions The rewards submissions being created * @dev Only callabe by the permissioned rewardsInitiator address * @dev The duration of the `rewardsSubmission` cannot exceed `MAX_REWARDS_DURATION` * @dev The tokens are sent to the `RewardsCoordinator` contract * @dev Strategies must be in ascending order of addresses to check for duplicates * @dev This function will revert if the `rewardsSubmission` is malformed, * e.g. if the `strategies` and `weights` arrays are of non-equal lengths */ function createAVSRewardsSubmission(IRewardsCoordinator.RewardsSubmission[] calldata rewardsSubmissions) public virtual onlyRewardsInitiator { for (uint256 i = 0; i < rewardsSubmissions.length; ++i) { // transfer token to ServiceManager and approve RewardsCoordinator to transfer again // in createAVSRewardsSubmission() call rewardsSubmissions[i].token.transferFrom(msg.sender, address(this), rewardsSubmissions[i].amount); uint256 allowance = rewardsSubmissions[i].token.allowance(address(this), address(_rewardsCoordinator)); rewardsSubmissions[i].token.approve( address(_rewardsCoordinator), rewardsSubmissions[i].amount + allowance ); } _rewardsCoordinator.createAVSRewardsSubmission(rewardsSubmissions); } /** * @notice Forwards a call to EigenLayer's AVSDirectory contract to confirm operator registration with the AVS * @param operator The address of the operator to register. * @param operatorSignature The signature, salt, and expiry of the operator's signature. */ function registerOperatorToAVS( address operator, ISignatureUtils.SignatureWithSaltAndExpiry memory operatorSignature ) public virtual onlyRegistryCoordinator { _avsDirectory.registerOperatorToAVS(operator, operatorSignature); } /** * @notice Forwards a call to EigenLayer's AVSDirectory contract to confirm operator deregistration from the AVS * @param operator The address of the operator to deregister. */ function deregisterOperatorFromAVS(address operator) public virtual onlyRegistryCoordinator { _avsDirectory.deregisterOperatorFromAVS(operator); } /** * @notice Sets the rewards initiator address * @param newRewardsInitiator The new rewards initiator address * @dev only callable by the owner */ function setRewardsInitiator(address newRewardsInitiator) external onlyOwner { _setRewardsInitiator(newRewardsInitiator); } function _setRewardsInitiator(address newRewardsInitiator) internal { emit RewardsInitiatorUpdated(rewardsInitiator, newRewardsInitiator); rewardsInitiator = newRewardsInitiator; } /** * @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) { uint256 quorumCount = _registryCoordinator.quorumCount(); if (quorumCount == 0) { return new address[](0); } uint256 strategyCount; for (uint256 i = 0; i < quorumCount; i++) { strategyCount += _stakeRegistry.strategyParamsLength(uint8(i)); } address[] memory restakedStrategies = new address[](strategyCount); uint256 index = 0; for (uint256 i = 0; i < _registryCoordinator.quorumCount(); i++) { uint256 strategyParamsLength = _stakeRegistry.strategyParamsLength(uint8(i)); for (uint256 j = 0; j < strategyParamsLength; j++) { restakedStrategies[index] = address(_stakeRegistry.strategyParamsByIndex(uint8(i), j).strategy); index++; } } return restakedStrategies; } /** * @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) { bytes32 operatorId = _registryCoordinator.getOperatorId(operator); uint192 operatorBitmap = _registryCoordinator.getCurrentQuorumBitmap(operatorId); if (operatorBitmap == 0 || _registryCoordinator.quorumCount() == 0) { return new address[](0); } // Get number of strategies for each quorum in operator bitmap bytes memory operatorRestakedQuorums = BitmapUtils.bitmapToBytesArray(operatorBitmap); uint256 strategyCount; for (uint256 i = 0; i < operatorRestakedQuorums.length; i++) { strategyCount += _stakeRegistry.strategyParamsLength(uint8(operatorRestakedQuorums[i])); } // Get strategies for each quorum in operator bitmap address[] memory restakedStrategies = new address[](strategyCount); uint256 index = 0; for (uint256 i = 0; i < operatorRestakedQuorums.length; i++) { uint8 quorum = uint8(operatorRestakedQuorums[i]); uint256 strategyParamsLength = _stakeRegistry.strategyParamsLength(quorum); for (uint256 j = 0; j < strategyParamsLength; j++) { restakedStrategies[index] = address(_stakeRegistry.strategyParamsByIndex(quorum, j).strategy); index++; } } return restakedStrategies; } /// @notice Returns the EigenLayer AVSDirectory contract. function avsDirectory() external view override returns (address) { return address(_avsDirectory); } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.12; import {IBLSSignatureChecker} from "./interfaces/IBLSSignatureChecker.sol"; import {IRegistryCoordinator} from "./interfaces/IRegistryCoordinator.sol"; import {IBLSApkRegistry} from "./interfaces/IBLSApkRegistry.sol"; import {IStakeRegistry, IDelegationManager} from "./interfaces/IStakeRegistry.sol"; import {BitmapUtils} from "./libraries/BitmapUtils.sol"; import {BN254} from "./libraries/BN254.sol"; /** * @title Used for checking BLS aggregate signatures from the operators of a `BLSRegistry`. * @author Layr Labs, Inc. * @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service * @notice This is the contract for checking the validity of aggregate operator signatures. */ contract BLSSignatureChecker is IBLSSignatureChecker { using BN254 for BN254.G1Point; // CONSTANTS & IMMUTABLES bytes internal constant ALIGNED_QUORUM_NUMBER = hex"00"; // gas cost of multiplying 2 pairings uint256 internal constant PAIRING_EQUALITY_CHECK_GAS = 120_000; IRegistryCoordinator public immutable registryCoordinator; IStakeRegistry public immutable stakeRegistry; IBLSApkRegistry public immutable blsApkRegistry; IDelegationManager public immutable delegation; /// @notice If true, check the staleness of the operator stakes and that its within the delegation withdrawalDelayBlocks window. bool public staleStakesForbidden; modifier onlyCoordinatorOwner() { require( msg.sender == registryCoordinator.owner(), "BLSSignatureChecker.onlyCoordinatorOwner: caller is not the owner of the registryCoordinator" ); _; } constructor(IRegistryCoordinator _registryCoordinator) { registryCoordinator = _registryCoordinator; stakeRegistry = _registryCoordinator.stakeRegistry(); blsApkRegistry = _registryCoordinator.blsApkRegistry(); delegation = stakeRegistry.delegation(); } /** * /** * RegistryCoordinator owner can either enforce or not that operator stakes are staler * than the delegation.minWithdrawalDelayBlocks() window. * @param value to toggle staleStakesForbidden */ function setStaleStakesForbidden(bool value) external onlyCoordinatorOwner { _setStaleStakesForbidden(value); } struct NonSignerInfo { uint256[] quorumBitmaps; bytes32[] pubkeyHashes; } /** * @notice This function is called by disperser when it has aggregated all the signatures of the operators * that are part of the quorum for a particular taskNumber and is asserting them into onchain. The function * checks that the claim for aggregated signatures are valid. * * The thesis of this procedure entails: * - getting the aggregated pubkey of all registered nodes at the time of pre-commit by the * disperser (represented by apk in the parameters), * - subtracting the pubkeys of all the signers not in the quorum (nonSignerPubkeys) and storing * the output in apk to get aggregated pubkey of all operators that are part of quorum. * - use this aggregated pubkey to verify the aggregated signature under BLS scheme. * * @dev Before signature verification, the function verifies operator stake information. This includes ensuring that the provided `referenceBlockNumber` * is correct, i.e., ensure that the stake returned from the specified block number is recent enough and that the stake is either the most recent update * for the total stake (of the operator) or latest before the referenceBlockNumber. * @param msgHash is the hash being signed * @dev NOTE: Be careful to ensure `msgHash` is collision-resistant! This method does not hash * `msgHash` in any way, so if an attacker is able to pass in an arbitrary value, they may be able * to tamper with signature verification. * @param referenceBlockNumber is the block number at which the stake information is being verified * @param params is the struct containing information on nonsigners, stakes, quorum apks, and the aggregate signature * @return quorumStakeTotals is the struct containing the total and signed stake for each quorum * @return signatoryRecordHash is the hash of the signatory record, which is used for fraud proofs */ function checkSignatures( bytes32 msgHash, uint32 referenceBlockNumber, NonSignerStakesAndSignature memory params ) public view returns (QuorumStakeTotals memory, bytes32) { require( (ALIGNED_QUORUM_NUMBER.length == params.quorumApks.length) && (ALIGNED_QUORUM_NUMBER.length == params.quorumApkIndices.length) && (ALIGNED_QUORUM_NUMBER.length == params.totalStakeIndices.length) && (ALIGNED_QUORUM_NUMBER.length == params.nonSignerStakeIndices.length), "BLSSignatureChecker.checkSignatures: input quorum length mismatch" ); require( params.nonSignerPubkeys.length == params.nonSignerQuorumBitmapIndices.length, "BLSSignatureChecker.checkSignatures: input nonsigner length mismatch" ); require( referenceBlockNumber < uint32(block.number), "BLSSignatureChecker.checkSignatures: invalid reference block" ); // This method needs to calculate the aggregate pubkey for all signing operators across // all signing quorums. To do that, we can query the aggregate pubkey for each quorum // and subtract out the pubkey for each nonsigning operator registered to that quorum. // // In practice, we do this in reverse - calculating an aggregate pubkey for all nonsigners, // negating that pubkey, then adding the aggregate pubkey for each quorum. BN254.G1Point memory apk = BN254.G1Point(0, 0); // For each quorum, we're also going to query the total stake for all registered operators // at the referenceBlockNumber, and derive the stake held by signers by subtracting out // stakes held by nonsigners. QuorumStakeTotals memory stakeTotals; stakeTotals.totalStakeForQuorum = new uint96[](ALIGNED_QUORUM_NUMBER.length); stakeTotals.signedStakeForQuorum = new uint96[](ALIGNED_QUORUM_NUMBER.length); NonSignerInfo memory nonSigners; nonSigners.quorumBitmaps = new uint256[]( params.nonSignerPubkeys.length ); nonSigners.pubkeyHashes = new bytes32[](params.nonSignerPubkeys.length); { // Get a bitmap of the quorums signing the message, and validate that // quorumNumbers contains only unique, valid quorum numbers uint256 signingQuorumBitmap = BitmapUtils.orderedBytesArrayToBitmap( ALIGNED_QUORUM_NUMBER, registryCoordinator.quorumCount() ); for (uint256 j = 0; j < params.nonSignerPubkeys.length; j++) { // The nonsigner's pubkey hash doubles as their operatorId // The check below validates that these operatorIds are sorted (and therefore // free of duplicates) nonSigners.pubkeyHashes[j] = params .nonSignerPubkeys[j] .hashG1Point(); if (j != 0) { require( uint256(nonSigners.pubkeyHashes[j]) > uint256(nonSigners.pubkeyHashes[j - 1]), "BLSSignatureChecker.checkSignatures: nonSignerPubkeys not sorted" ); } // Get the quorums the nonsigner was registered for at referenceBlockNumber nonSigners.quorumBitmaps[j] = registryCoordinator .getQuorumBitmapAtBlockNumberByIndex({ operatorId: nonSigners.pubkeyHashes[j], blockNumber: referenceBlockNumber, index: params.nonSignerQuorumBitmapIndices[j] }); // Add the nonsigner's pubkey to the total apk, multiplied by the number // of quorums they have in common with the signing quorums, because their // public key will be a part of each signing quorum's aggregate pubkey apk = apk.plus( params.nonSignerPubkeys[j].scalar_mul_tiny( BitmapUtils.countNumOnes( nonSigners.quorumBitmaps[j] & signingQuorumBitmap ) ) ); } } // Negate the sum of the nonsigner aggregate pubkeys - from here, we'll add the // total aggregate pubkey from each quorum. Because the nonsigners' pubkeys are // in these quorums, this initial negation ensures they're cancelled out apk = apk.negate(); /** * For each quorum (at referenceBlockNumber): * - add the apk for all registered operators * - query the total stake for each quorum * - subtract the stake for each nonsigner to calculate the stake belonging to signers */ { bool _staleStakesForbidden = staleStakesForbidden; uint256 withdrawalDelayBlocks = _staleStakesForbidden ? delegation.minWithdrawalDelayBlocks() : 0; for (uint256 i = 0; i < ALIGNED_QUORUM_NUMBER.length; i++) { // If we're disallowing stale stake updates, check that each quorum's last update block // is within withdrawalDelayBlocks if (_staleStakesForbidden) { require( registryCoordinator.quorumUpdateBlockNumber( uint8(ALIGNED_QUORUM_NUMBER[i]) ) + withdrawalDelayBlocks > referenceBlockNumber, "BLSSignatureChecker.checkSignatures: StakeRegistry updates must be within withdrawalDelayBlocks window" ); } // Validate params.quorumApks is correct for this quorum at the referenceBlockNumber, // then add it to the total apk require( bytes24(params.quorumApks[i].hashG1Point()) == blsApkRegistry.getApkHashAtBlockNumberAndIndex({ quorumNumber: uint8(ALIGNED_QUORUM_NUMBER[i]), blockNumber: referenceBlockNumber, index: params.quorumApkIndices[i] }), "BLSSignatureChecker.checkSignatures: quorumApk hash in storage does not match provided quorum apk" ); apk = apk.plus(params.quorumApks[i]); // Get the total and starting signed stake for the quorum at referenceBlockNumber stakeTotals.totalStakeForQuorum[i] = stakeRegistry .getTotalStakeAtBlockNumberFromIndex({ quorumNumber: uint8(ALIGNED_QUORUM_NUMBER[i]), blockNumber: referenceBlockNumber, index: params.totalStakeIndices[i] }); stakeTotals.signedStakeForQuorum[i] = stakeTotals .totalStakeForQuorum[i]; // Keep track of the nonSigners index in the quorum uint256 nonSignerForQuorumIndex = 0; // loop through all nonSigners, checking that they are a part of the quorum via their quorumBitmap // if so, load their stake at referenceBlockNumber and subtract it from running stake signed for (uint256 j = 0; j < params.nonSignerPubkeys.length; j++) { // if the nonSigner is a part of the quorum, subtract their stake from the running total if ( BitmapUtils.isSet( nonSigners.quorumBitmaps[j], uint8(ALIGNED_QUORUM_NUMBER[i]) ) ) { stakeTotals.signedStakeForQuorum[i] -= stakeRegistry .getStakeAtBlockNumberAndIndex({ quorumNumber: uint8(ALIGNED_QUORUM_NUMBER[i]), blockNumber: referenceBlockNumber, operatorId: nonSigners.pubkeyHashes[j], index: params.nonSignerStakeIndices[i][ nonSignerForQuorumIndex ] }); unchecked { ++nonSignerForQuorumIndex; } } } } } { // verify the signature ( bool pairingSuccessful, bool signatureIsValid ) = trySignatureAndApkVerification( msgHash, apk, params.apkG2, params.sigma ); require( pairingSuccessful, "BLSSignatureChecker.checkSignatures: pairing precompile call failed" ); require( signatureIsValid, "BLSSignatureChecker.checkSignatures: signature is invalid" ); } // set signatoryRecordHash variable used for fraudproofs bytes32 signatoryRecordHash = keccak256( abi.encodePacked(referenceBlockNumber, nonSigners.pubkeyHashes) ); // return the total stakes that signed for each quorum, and a hash of the information required to prove the exact signers and stake return (stakeTotals, signatoryRecordHash); } /** * trySignatureAndApkVerification verifies a BLS aggregate signature and the veracity of a calculated G1 Public key * @param msgHash is the hash being signed * @param apk is the claimed G1 public key * @param apkG2 is provided G2 public key * @param sigma is the G1 point signature * @return pairingSuccessful is true if the pairing precompile call was successful * @return siganatureIsValid is true if the signature is valid */ function trySignatureAndApkVerification( bytes32 msgHash, BN254.G1Point memory apk, BN254.G2Point memory apkG2, BN254.G1Point memory sigma ) public view returns (bool pairingSuccessful, bool siganatureIsValid) { // gamma = keccak256(abi.encodePacked(msgHash, apk, apkG2, sigma)) uint256 gamma = uint256( keccak256( abi.encodePacked( msgHash, apk.X, apk.Y, apkG2.X[0], apkG2.X[1], apkG2.Y[0], apkG2.Y[1], sigma.X, sigma.Y ) ) ) % BN254.FR_MODULUS; // verify the signature (pairingSuccessful, siganatureIsValid) = BN254.safePairing( sigma.plus(apk.scalar_mul(gamma)), BN254.negGeneratorG2(), BN254.hashToG1(msgHash).plus(BN254.generatorG1().scalar_mul(gamma)), apkG2, PAIRING_EQUALITY_CHECK_GAS ); } function _setStaleStakesForbidden(bool value) internal { staleStakesForbidden = value; emit StaleStakesForbiddenUpdate(value); } // storage gap for upgradeability // slither-disable-next-line shadowing-state uint256[49] private __GAP; }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.12; import {IBLSApkRegistry} from "./IBLSApkRegistry.sol"; import {IStakeRegistry} from "./IStakeRegistry.sol"; import {IIndexRegistry} from "./IIndexRegistry.sol"; import {BN254} from "../libraries/BN254.sol"; /** * @title Interface for a contract that coordinates between various registries for an AVS. * @author Layr Labs, Inc. */ interface IRegistryCoordinator { // EVENTS /// Emits when an operator is registered event OperatorRegistered(address indexed operator, bytes32 indexed operatorId); /// Emits when an operator is deregistered event OperatorDeregistered(address indexed operator, bytes32 indexed operatorId); event OperatorSetParamsUpdated(uint8 indexed quorumNumber, OperatorSetParam operatorSetParams); event ChurnApproverUpdated(address prevChurnApprover, address newChurnApprover); event EjectorUpdated(address prevEjector, address newEjector); /// @notice emitted when all the operators for a quorum are updated at once event QuorumBlockNumberUpdated(uint8 indexed quorumNumber, uint256 blocknumber); // DATA STRUCTURES enum OperatorStatus { // default is NEVER_REGISTERED NEVER_REGISTERED, REGISTERED, DEREGISTERED } // STRUCTS /** * @notice Data structure for storing info on operators */ struct OperatorInfo { // the id of the operator, which is likely the keccak256 hash of the operator's public key if using BLSRegistry bytes32 operatorId; // indicates whether the operator is actively registered for serving the middleware or not OperatorStatus status; } /** * @notice Data structure for storing info on quorum bitmap updates where the `quorumBitmap` is the bitmap of the * quorums the operator is registered for starting at (inclusive)`updateBlockNumber` and ending at (exclusive) `nextUpdateBlockNumber` * @dev nextUpdateBlockNumber is initialized to 0 for the latest update */ struct QuorumBitmapUpdate { uint32 updateBlockNumber; uint32 nextUpdateBlockNumber; uint192 quorumBitmap; } /** * @notice Data structure for storing operator set params for a given quorum. Specifically the * `maxOperatorCount` is the maximum number of operators that can be registered for the quorum, * `kickBIPsOfOperatorStake` is the basis points of a new operator needs to have of an operator they are trying to kick from the quorum, * and `kickBIPsOfTotalStake` is the basis points of the total stake of the quorum that an operator needs to be below to be kicked. */ struct OperatorSetParam { uint32 maxOperatorCount; uint16 kickBIPsOfOperatorStake; uint16 kickBIPsOfTotalStake; } /** * @notice Data structure for the parameters needed to kick an operator from a quorum with number `quorumNumber`, used during registration churn. * `operator` is the address of the operator to kick */ struct OperatorKickParam { uint8 quorumNumber; address operator; } /// @notice Returns the operator set params for the given `quorumNumber` function getOperatorSetParams(uint8 quorumNumber) external view returns (OperatorSetParam memory); /// @notice the Stake registry contract that will keep track of operators' stakes function stakeRegistry() external view returns (IStakeRegistry); /// @notice the BLS Aggregate Pubkey Registry contract that will keep track of operators' BLS aggregate pubkeys per quorum function blsApkRegistry() external view returns (IBLSApkRegistry); /// @notice the index Registry contract that will keep track of operators' indexes function indexRegistry() external view returns (IIndexRegistry); /** * @notice Ejects the provided operator from the provided quorums from the AVS * @param operator is the operator to eject * @param quorumNumbers are the quorum numbers to eject the operator from */ function ejectOperator( address operator, bytes calldata quorumNumbers ) external; /// @notice Returns the number of quorums the registry coordinator has created function quorumCount() external view returns (uint8); /// @notice Returns the operator struct for the given `operator` function getOperator(address operator) external view returns (OperatorInfo memory); /// @notice Returns the operatorId for the given `operator` function getOperatorId(address operator) external view returns (bytes32); /// @notice Returns the operator address for the given `operatorId` function getOperatorFromId(bytes32 operatorId) external view returns (address operator); /// @notice Returns the status for the given `operator` function getOperatorStatus(address operator) external view returns (IRegistryCoordinator.OperatorStatus); /// @notice Returns the indices of the quorumBitmaps for the provided `operatorIds` at the given `blockNumber` function getQuorumBitmapIndicesAtBlockNumber(uint32 blockNumber, bytes32[] memory operatorIds) external view returns (uint32[] memory); /** * @notice Returns the quorum bitmap for the given `operatorId` at the given `blockNumber` via the `index` * @dev reverts if `index` is incorrect */ function getQuorumBitmapAtBlockNumberByIndex(bytes32 operatorId, uint32 blockNumber, uint256 index) external view returns (uint192); /// @notice Returns the `index`th entry in the operator with `operatorId`'s bitmap history function getQuorumBitmapUpdateByIndex(bytes32 operatorId, uint256 index) external view returns (QuorumBitmapUpdate memory); /// @notice Returns the current quorum bitmap for the given `operatorId` function getCurrentQuorumBitmap(bytes32 operatorId) external view returns (uint192); /// @notice Returns the length of the quorum bitmap history for the given `operatorId` function getQuorumBitmapHistoryLength(bytes32 operatorId) external view returns (uint256); /// @notice Returns the registry at the desired index function registries(uint256) external view returns (address); /// @notice Returns the number of registries function numRegistries() external view returns (uint256); /** * @notice Returns the message hash that an operator must sign to register their BLS public key. * @param operator is the address of the operator registering their BLS public key */ function pubkeyRegistrationMessageHash(address operator) external view returns (BN254.G1Point memory); /// @notice returns the blocknumber the quorum was last updated all at once for all operators function quorumUpdateBlockNumber(uint8 quorumNumber) external view returns (uint256); /// @notice The owner of the registry coordinator function owner() external view returns (address); }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.12; import {IDelegationManager} from "eigenlayer-contracts/src/contracts/interfaces/IDelegationManager.sol"; import {IStrategy} from "eigenlayer-contracts/src/contracts/interfaces/IStrategy.sol"; import {IRegistry} from "./IRegistry.sol"; /** * @title Interface for a `Registry` that keeps track of stakes of operators for up to 256 quorums. * @author Layr Labs, Inc. */ interface IStakeRegistry is IRegistry { // DATA STRUCTURES /// @notice struct used to store the stakes of an individual operator or the sum of all operators' stakes, for storage struct StakeUpdate { // the block number at which the stake amounts were updated and stored uint32 updateBlockNumber; // the block number at which the *next update* occurred. /// @notice This entry has the value **0** until another update takes place. uint32 nextUpdateBlockNumber; // stake weight for the quorum uint96 stake; } /** * @notice In weighing a particular strategy, the amount of underlying asset for that strategy is * multiplied by its multiplier, then divided by WEIGHTING_DIVISOR */ struct StrategyParams { IStrategy strategy; uint96 multiplier; } // EVENTS /// @notice emitted whenever the stake of `operator` is updated event OperatorStakeUpdate( bytes32 indexed operatorId, uint8 quorumNumber, uint96 stake ); /// @notice emitted when the minimum stake for a quorum is updated event MinimumStakeForQuorumUpdated(uint8 indexed quorumNumber, uint96 minimumStake); /// @notice emitted when a new quorum is created event QuorumCreated(uint8 indexed quorumNumber); /// @notice emitted when `strategy` has been added to the array at `strategyParams[quorumNumber]` event StrategyAddedToQuorum(uint8 indexed quorumNumber, IStrategy strategy); /// @notice emitted when `strategy` has removed from the array at `strategyParams[quorumNumber]` event StrategyRemovedFromQuorum(uint8 indexed quorumNumber, IStrategy strategy); /// @notice emitted when `strategy` has its `multiplier` updated in the array at `strategyParams[quorumNumber]` event StrategyMultiplierUpdated(uint8 indexed quorumNumber, IStrategy strategy, uint256 multiplier); /** * @notice Registers the `operator` with `operatorId` for the specified `quorumNumbers`. * @param operator The address of the operator to register. * @param operatorId The id of the operator to register. * @param quorumNumbers The quorum numbers the operator is registering for, where each byte is an 8 bit integer quorumNumber. * @return The operator's current stake for each quorum, and the total stake for each quorum * @dev access restricted to the RegistryCoordinator * @dev Preconditions (these are assumed, not validated in this contract): * 1) `quorumNumbers` has no duplicates * 2) `quorumNumbers.length` != 0 * 3) `quorumNumbers` is ordered in ascending order * 4) the operator is not already registered */ function registerOperator( address operator, bytes32 operatorId, bytes memory quorumNumbers ) external returns (uint96[] memory, uint96[] memory); /** * @notice Deregisters the operator with `operatorId` for the specified `quorumNumbers`. * @param operatorId The id of the operator to deregister. * @param quorumNumbers The quorum numbers the operator is deregistering from, where each byte is an 8 bit integer quorumNumber. * @dev access restricted to the RegistryCoordinator * @dev Preconditions (these are assumed, not validated in this contract): * 1) `quorumNumbers` has no duplicates * 2) `quorumNumbers.length` != 0 * 3) `quorumNumbers` is ordered in ascending order * 4) the operator is not already deregistered * 5) `quorumNumbers` is a subset of the quorumNumbers that the operator is registered for */ function deregisterOperator(bytes32 operatorId, bytes memory quorumNumbers) external; /** * @notice Initialize a new quorum created by the registry coordinator by setting strategies, weights, and minimum stake */ function initializeQuorum(uint8 quorumNumber, uint96 minimumStake, StrategyParams[] memory strategyParams) external; /// @notice Adds new strategies and the associated multipliers to the @param quorumNumber. function addStrategies( uint8 quorumNumber, StrategyParams[] memory strategyParams ) external; /** * @notice This function is used for removing strategies and their associated weights from the * mapping strategyParams for a specific @param quorumNumber. * @dev higher indices should be *first* in the list of @param indicesToRemove, since otherwise * the removal of lower index entries will cause a shift in the indices of the other strategiesToRemove */ function removeStrategies(uint8 quorumNumber, uint256[] calldata indicesToRemove) external; /** * @notice This function is used for modifying the weights of strategies that are already in the * mapping strategyParams for a specific * @param quorumNumber is the quorum number to change the strategy for * @param strategyIndices are the indices of the strategies to change * @param newMultipliers are the new multipliers for the strategies */ function modifyStrategyParams( uint8 quorumNumber, uint256[] calldata strategyIndices, uint96[] calldata newMultipliers ) external; /// @notice Constant used as a divisor in calculating weights. function WEIGHTING_DIVISOR() external pure returns (uint256); /// @notice Returns the EigenLayer delegation manager contract. function delegation() external view returns (IDelegationManager); /// @notice In order to register for a quorum i, an operator must have at least `minimumStakeForQuorum[i]` function minimumStakeForQuorum(uint8 quorumNumber) external view returns (uint96); /// @notice Returns the length of the dynamic array stored in `strategyParams[quorumNumber]`. function strategyParamsLength(uint8 quorumNumber) external view returns (uint256); /// @notice Returns the strategy and weight multiplier for the `index`'th strategy in the quorum `quorumNumber` function strategyParamsByIndex( uint8 quorumNumber, uint256 index ) external view returns (StrategyParams memory); /** * @notice This function computes the total weight of the @param operator in the quorum @param quorumNumber. * @dev reverts in the case that `quorumNumber` is greater than or equal to `quorumCount` */ function weightOfOperatorForQuorum(uint8 quorumNumber, address operator) external view returns (uint96); /** * @notice Returns the entire `operatorIdToStakeHistory[operatorId][quorumNumber]` array. * @param operatorId The id of the operator of interest. * @param quorumNumber The quorum number to get the stake for. */ function getStakeHistory(bytes32 operatorId, uint8 quorumNumber) external view returns (StakeUpdate[] memory); function getTotalStakeHistoryLength(uint8 quorumNumber) external view returns (uint256); /** * @notice Returns the `index`-th entry in the dynamic array of total stake, `totalStakeHistory` for quorum `quorumNumber`. * @param quorumNumber The quorum number to get the stake for. * @param index Array index for lookup, within the dynamic array `totalStakeHistory[quorumNumber]`. */ function getTotalStakeUpdateAtIndex(uint8 quorumNumber, uint256 index) external view returns (StakeUpdate memory); /// @notice Returns the indices of the operator stakes for the provided `quorumNumber` at the given `blockNumber` function getStakeUpdateIndexAtBlockNumber(bytes32 operatorId, uint8 quorumNumber, uint32 blockNumber) external view returns (uint32); /// @notice Returns the indices of the total stakes for the provided `quorumNumbers` at the given `blockNumber` function getTotalStakeIndicesAtBlockNumber(uint32 blockNumber, bytes calldata quorumNumbers) external view returns(uint32[] memory) ; /** * @notice Returns the `index`-th entry in the `operatorIdToStakeHistory[operatorId][quorumNumber]` array. * @param quorumNumber The quorum number to get the stake for. * @param operatorId The id of the operator of interest. * @param index Array index for lookup, within the dynamic array `operatorIdToStakeHistory[operatorId][quorumNumber]`. * @dev Function will revert if `index` is out-of-bounds. */ function getStakeUpdateAtIndex(uint8 quorumNumber, bytes32 operatorId, uint256 index) external view returns (StakeUpdate memory); /** * @notice Returns the most recent stake weight for the `operatorId` for a certain quorum * @dev Function returns an StakeUpdate struct with **every entry equal to 0** in the event that the operator has no stake history */ function getLatestStakeUpdate(bytes32 operatorId, uint8 quorumNumber) external view returns (StakeUpdate memory); /** * @notice Returns the stake weight corresponding to `operatorId` for quorum `quorumNumber`, at the * `index`-th entry in the `operatorIdToStakeHistory[operatorId][quorumNumber]` array if the entry * corresponds to the operator's stake at `blockNumber`. Reverts otherwise. * @param quorumNumber The quorum number to get the stake for. * @param operatorId The id of the operator of interest. * @param index Array index for lookup, within the dynamic array `operatorIdToStakeHistory[operatorId][quorumNumber]`. * @param blockNumber Block number to make sure the stake is from. * @dev Function will revert if `index` is out-of-bounds. * @dev used the BLSSignatureChecker to get past stakes of signing operators */ function getStakeAtBlockNumberAndIndex(uint8 quorumNumber, uint32 blockNumber, bytes32 operatorId, uint256 index) external view returns (uint96); /** * @notice Returns the total stake weight for quorum `quorumNumber`, at the `index`-th entry in the * `totalStakeHistory[quorumNumber]` array if the entry corresponds to the total stake at `blockNumber`. * Reverts otherwise. * @param quorumNumber The quorum number to get the stake for. * @param index Array index for lookup, within the dynamic array `totalStakeHistory[quorumNumber]`. * @param blockNumber Block number to make sure the stake is from. * @dev Function will revert if `index` is out-of-bounds. * @dev used the BLSSignatureChecker to get past stakes of signing operators */ function getTotalStakeAtBlockNumberFromIndex(uint8 quorumNumber, uint32 blockNumber, uint256 index) external view returns (uint96); /** * @notice Returns the most recent stake weight for the `operatorId` for quorum `quorumNumber` * @dev Function returns weight of **0** in the event that the operator has no stake history */ function getCurrentStake(bytes32 operatorId, uint8 quorumNumber) external view returns (uint96); /// @notice Returns the stake of the operator for the provided `quorumNumber` at the given `blockNumber` function getStakeAtBlockNumber(bytes32 operatorId, uint8 quorumNumber, uint32 blockNumber) external view returns (uint96); /** * @notice Returns the stake weight from the latest entry in `_totalStakeHistory` for quorum `quorumNumber`. * @dev Will revert if `_totalStakeHistory[quorumNumber]` is empty. */ function getCurrentTotalStake(uint8 quorumNumber) external view returns (uint96); /** * @notice Called by the registry coordinator to update an operator's stake for one * or more quorums. * * If the operator no longer has the minimum stake required for a quorum, they are * added to the * @return A bitmap of quorums where the operator no longer meets the minimum stake * and should be deregistered. */ function updateOperatorStake( address operator, bytes32 operatorId, bytes calldata quorumNumbers ) external returns (uint192); }
// 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. * @dev If the proof length is 0 then the leaf hash is returned. * * _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 % 32 == 0, "Merkle.processInclusionProofKeccak: proof length should be a 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 ^0.8.12; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import "./IStrategy.sol"; import "./IPauserRegistry.sol"; /** * @title Interface for the `IRewardsCoordinator` contract. * @author Layr Labs, Inc. * @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service * @notice Allows AVSs to make "Rewards Submissions", which get distributed amongst the AVSs' confirmed * Operators and the Stakers delegated to those Operators. * Calculations are performed based on the completed RewardsSubmission, with the results posted in * a Merkle root against which Stakers & Operators can make claims. */ interface IRewardsCoordinator { /// STRUCTS /// /** * @notice A linear combination of strategies and multipliers for AVSs to weigh * EigenLayer strategies. * @param strategy The EigenLayer strategy to be used for the rewards submission * @param multiplier The weight of the strategy in the rewards submission */ struct StrategyAndMultiplier { IStrategy strategy; uint96 multiplier; } /** * Sliding Window for valid RewardsSubmission startTimestamp * * Scenario A: GENESIS_REWARDS_TIMESTAMP IS WITHIN RANGE * <-----MAX_RETROACTIVE_LENGTH-----> t (block.timestamp) <---MAX_FUTURE_LENGTH---> * <--------------------valid range for startTimestamp------------------------> * ^ * GENESIS_REWARDS_TIMESTAMP * * * Scenario B: GENESIS_REWARDS_TIMESTAMP IS OUT OF RANGE * <-----MAX_RETROACTIVE_LENGTH-----> t (block.timestamp) <---MAX_FUTURE_LENGTH---> * <------------------------valid range for startTimestamp------------------------> * ^ * GENESIS_REWARDS_TIMESTAMP * @notice RewardsSubmission struct submitted by AVSs when making rewards for their operators and stakers * RewardsSubmission can be for a time range within the valid window for startTimestamp and must be within max duration. * See `createAVSRewardsSubmission()` for more details. * @param strategiesAndMultipliers The strategies and their relative weights * cannot have duplicate strategies and need to be sorted in ascending address order * @param token The rewards token to be distributed * @param amount The total amount of tokens to be distributed * @param startTimestamp The timestamp (seconds) at which the submission range is considered for distribution * could start in the past or in the future but within a valid range. See the diagram above. * @param duration The duration of the submission range in seconds. Must be <= MAX_REWARDS_DURATION */ struct RewardsSubmission { StrategyAndMultiplier[] strategiesAndMultipliers; IERC20 token; uint256 amount; uint32 startTimestamp; uint32 duration; } /** * @notice A distribution root is a merkle root of the distribution of earnings for a given period. * The RewardsCoordinator stores all historical distribution roots so that earners can claim their earnings against older roots * if they wish but the merkle tree contains the cumulative earnings of all earners and tokens for a given period so earners (or their claimers if set) * only need to claim against the latest root to claim all available earnings. * @param root The merkle root of the distribution * @param rewardsCalculationEndTimestamp The timestamp (seconds) until which rewards have been calculated * @param activatedAt The timestamp (seconds) at which the root can be claimed against */ struct DistributionRoot { bytes32 root; uint32 rewardsCalculationEndTimestamp; uint32 activatedAt; } /** * @notice Internal leaf in the merkle tree for the earner's account leaf * @param earner The address of the earner * @param earnerTokenRoot The merkle root of the earner's token subtree * Each leaf in the earner's token subtree is a TokenTreeMerkleLeaf */ struct EarnerTreeMerkleLeaf { address earner; bytes32 earnerTokenRoot; } /** * @notice The actual leaves in the distribution merkle tree specifying the token earnings * for the respective earner's subtree. Each leaf is a claimable amount of a token for an earner. * @param token The token for which the earnings are being claimed * @param cumulativeEarnings The cumulative earnings of the earner for the token */ struct TokenTreeMerkleLeaf { IERC20 token; uint256 cumulativeEarnings; } /** * @notice A claim against a distribution root called by an * earners claimer (could be the earner themselves). Each token claim will claim the difference * between the cumulativeEarnings of the earner and the cumulativeClaimed of the claimer. * Each claim can specify which of the earner's earned tokens they want to claim. * See `processClaim()` for more details. * @param rootIndex The index of the root in the list of DistributionRoots * @param earnerIndex The index of the earner's account root in the merkle tree * @param earnerTreeProof The proof of the earner's EarnerTreeMerkleLeaf against the merkle root * @param earnerLeaf The earner's EarnerTreeMerkleLeaf struct, providing the earner address and earnerTokenRoot * @param tokenIndices The indices of the token leaves in the earner's subtree * @param tokenTreeProofs The proofs of the token leaves against the earner's earnerTokenRoot * @param tokenLeaves The token leaves to be claimed * @dev The merkle tree is structured with the merkle root at the top and EarnerTreeMerkleLeaf as internal leaves * in the tree. Each earner leaf has its own subtree with TokenTreeMerkleLeaf as leaves in the subtree. * To prove a claim against a specified rootIndex(which specifies the distributionRoot being used), * the claim will first verify inclusion of the earner leaf in the tree against distributionRoots[rootIndex].root. * Then for each token, it will verify inclusion of the token leaf in the earner's subtree against the earner's earnerTokenRoot. */ struct RewardsMerkleClaim { uint32 rootIndex; uint32 earnerIndex; bytes earnerTreeProof; EarnerTreeMerkleLeaf earnerLeaf; uint32[] tokenIndices; bytes[] tokenTreeProofs; TokenTreeMerkleLeaf[] tokenLeaves; } /// EVENTS /// /// @notice emitted when an AVS creates a valid RewardsSubmission event AVSRewardsSubmissionCreated( address indexed avs, uint256 indexed submissionNonce, bytes32 indexed rewardsSubmissionHash, RewardsSubmission rewardsSubmission ); /// @notice emitted when a valid RewardsSubmission is created for all stakers by a valid submitter event RewardsSubmissionForAllCreated( address indexed submitter, uint256 indexed submissionNonce, bytes32 indexed rewardsSubmissionHash, RewardsSubmission rewardsSubmission ); /// @notice rewardsUpdater is responsible for submiting DistributionRoots, only owner can set rewardsUpdater event RewardsUpdaterSet(address indexed oldRewardsUpdater, address indexed newRewardsUpdater); event RewardsForAllSubmitterSet( address indexed rewardsForAllSubmitter, bool indexed oldValue, bool indexed newValue ); event ActivationDelaySet(uint32 oldActivationDelay, uint32 newActivationDelay); event GlobalCommissionBipsSet(uint16 oldGlobalCommissionBips, uint16 newGlobalCommissionBips); event ClaimerForSet(address indexed earner, address indexed oldClaimer, address indexed claimer); /// @notice rootIndex is the specific array index of the newly created root in the storage array event DistributionRootSubmitted( uint32 indexed rootIndex, bytes32 indexed root, uint32 indexed rewardsCalculationEndTimestamp, uint32 activatedAt ); /// @notice root is one of the submitted distribution roots that was claimed against event RewardsClaimed( bytes32 root, address indexed earner, address indexed claimer, address indexed recipient, IERC20 token, uint256 claimedAmount ); /******************************************************************************* VIEW FUNCTIONS *******************************************************************************/ /// @notice The address of the entity that can update the contract with new merkle roots function rewardsUpdater() external view returns (address); /** * @notice The interval in seconds at which the calculation for a RewardsSubmission distribution is done. * @dev Rewards Submission durations must be multiples of this interval. */ function CALCULATION_INTERVAL_SECONDS() external view returns (uint32); /// @notice The maximum amount of time (seconds) that a RewardsSubmission can span over function MAX_REWARDS_DURATION() external view returns (uint32); /// @notice max amount of time (seconds) that a submission can start in the past function MAX_RETROACTIVE_LENGTH() external view returns (uint32); /// @notice max amount of time (seconds) that a submission can start in the future function MAX_FUTURE_LENGTH() external view returns (uint32); /// @notice absolute min timestamp (seconds) that a submission can start at function GENESIS_REWARDS_TIMESTAMP() external view returns (uint32); /// @notice Delay in timestamp (seconds) before a posted root can be claimed against function activationDelay() external view returns (uint32); /// @notice Mapping: earner => the address of the entity who can call `processClaim` on behalf of the earner function claimerFor(address earner) external view returns (address); /// @notice Mapping: claimer => token => total amount claimed function cumulativeClaimed(address claimer, IERC20 token) external view returns (uint256); /// @notice the commission for all operators across all avss function globalOperatorCommissionBips() external view returns (uint16); /// @notice the commission for a specific operator for a specific avs /// NOTE: Currently unused and simply returns the globalOperatorCommissionBips value but will be used in future release function operatorCommissionBips(address operator, address avs) external view returns (uint16); /// @notice return the hash of the earner's leaf function calculateEarnerLeafHash(EarnerTreeMerkleLeaf calldata leaf) external pure returns (bytes32); /// @notice returns the hash of the earner's token leaf function calculateTokenLeafHash(TokenTreeMerkleLeaf calldata leaf) external pure returns (bytes32); /// @notice returns 'true' if the claim would currently pass the check in `processClaims` /// but will revert if not valid function checkClaim(RewardsMerkleClaim calldata claim) external view returns (bool); /// @notice The timestamp until which RewardsSubmissions have been calculated function currRewardsCalculationEndTimestamp() external view returns (uint32); /// @notice loop through distribution roots from reverse and return hash function getRootIndexFromHash(bytes32 rootHash) external view returns (uint32); /// @notice returns the number of distribution roots posted function getDistributionRootsLength() external view returns (uint256); /******************************************************************************* EXTERNAL FUNCTIONS *******************************************************************************/ /** * @notice Creates a new rewards submission on behalf of an AVS, to be split amongst the * set of stakers delegated to operators who are registered to the `avs` * @param rewardsSubmissions The rewards submissions being created * @dev Expected to be called by the ServiceManager of the AVS on behalf of which the submission is being made * @dev The duration of the `rewardsSubmission` cannot exceed `MAX_REWARDS_DURATION` * @dev The tokens are sent to the `RewardsCoordinator` contract * @dev Strategies must be in ascending order of addresses to check for duplicates * @dev This function will revert if the `rewardsSubmission` is malformed, * e.g. if the `strategies` and `weights` arrays are of non-equal lengths */ function createAVSRewardsSubmission(RewardsSubmission[] calldata rewardsSubmissions) external; /** * @notice similar to `createAVSRewardsSubmission` except the rewards are split amongst *all* stakers * rather than just those delegated to operators who are registered to a single avs and is * a permissioned call based on isRewardsForAllSubmitter mapping. */ function createRewardsForAllSubmission(RewardsSubmission[] calldata rewardsSubmission) external; /** * @notice Claim rewards against a given root (read from distributionRoots[claim.rootIndex]). * Earnings are cumulative so earners don't have to claim against all distribution roots they have earnings for, * they can simply claim against the latest root and the contract will calculate the difference between * their cumulativeEarnings and cumulativeClaimed. This difference is then transferred to recipient address. * @param claim The RewardsMerkleClaim to be processed. * Contains the root index, earner, token leaves, and required proofs * @param recipient The address recipient that receives the ERC20 rewards * @dev only callable by the valid claimer, that is * if claimerFor[claim.earner] is address(0) then only the earner can claim, otherwise only * claimerFor[claim.earner] can claim the rewards. */ function processClaim(RewardsMerkleClaim calldata claim, address recipient) external; /** * @notice Creates a new distribution root. activatedAt is set to block.timestamp + activationDelay * @param root The merkle root of the distribution * @param rewardsCalculationEndTimestamp The timestamp (seconds) until which rewards have been calculated * @dev Only callable by the rewardsUpdater */ function submitRoot(bytes32 root, uint32 rewardsCalculationEndTimestamp) external; /** * @notice Sets the address of the entity that can call `processClaim` on behalf of the earner (msg.sender) * @param claimer The address of the entity that can claim rewards on behalf of the earner * @dev Only callable by the `earner` */ function setClaimerFor(address claimer) external; /** * @notice Sets the delay in timestamp before a posted root can be claimed against * @param _activationDelay Delay in timestamp (seconds) before a posted root can be claimed against * @dev Only callable by the contract owner */ function setActivationDelay(uint32 _activationDelay) external; /** * @notice Sets the global commission for all operators across all avss * @param _globalCommissionBips The commission for all operators across all avss * @dev Only callable by the contract owner */ function setGlobalOperatorCommission(uint16 _globalCommissionBips) external; /** * @notice Sets the permissioned `rewardsUpdater` address which can post new roots * @dev Only callable by the contract owner */ function setRewardsUpdater(address _rewardsUpdater) external; /** * @notice Sets the permissioned `rewardsForAllSubmitter` address which can submit createRewardsForAllSubmission * @dev Only callable by the contract owner * @param _submitter The address of the rewardsForAllSubmitter * @param _newValue The new value for isRewardsForAllSubmitter */ function setRewardsForAllSubmitter(address _submitter, bool _newValue) external; }
pragma solidity ^0.8.12; abstract contract AlignedLayerServiceManagerStorage { struct BatchState { uint32 taskCreatedBlock; bool responded; uint256 respondToTaskFeeLimit; } /* STORAGE */ // KEY is keccak256(batchMerkleRoot,senderAddress) mapping(bytes32 => BatchState) public batchesState; // Storage for batchers balances. Used by aggregator to pay for respondToTask mapping(address => uint256) public batchersBalances; address public alignedAggregator; // storage gap for upgradeability // solhint-disable-next-line var-name-mixedcase uint256[47] private __GAP; }
// SPDX-License-Identifier: UNLICENSED pragma solidity ^0.8.12; import {IBLSSignatureChecker} from "eigenlayer-middleware/interfaces/IBLSSignatureChecker.sol"; interface IAlignedLayerServiceManager { // EVENTS event NewBatchV2( bytes32 indexed batchMerkleRoot, address senderAddress, uint32 taskCreatedBlock, string batchDataPointer ); event NewBatchV3( bytes32 indexed batchMerkleRoot, address senderAddress, uint32 taskCreatedBlock, string batchDataPointer, uint256 respondToTaskFeeLimit ); event BatchVerified(bytes32 indexed batchMerkleRoot, address senderAddress); event BatcherBalanceUpdated(address indexed batcher, uint256 newBalance); // ERRORS error BatchAlreadySubmitted(bytes32 batchIdentifierHash); // 3102f10c error BatchDoesNotExist(bytes32 batchIdentifierHash); // 2396d34e error BatchAlreadyResponded(bytes32 batchIdentifierHash); // 9cf1aff2 error InsufficientFunds( address batcher, uint256 required, uint256 available ); // 5c54305e error InvalidQuorumThreshold(uint256 signedStake, uint256 requiredStake); // a61eb88a error SenderIsNotAggregator(address sender, address alignedAggregator); // 2cbe4195 error InvalidDepositAmount(uint256 amount); // 412ed242 error ExceededMaxRespondFee(uint256 respondToTaskFeeLimit, uint256 txCost); // 86fc507e function createNewTask( bytes32 batchMerkleRoot, string calldata batchDataPointer, uint256 respondToTaskFeeLimit ) external payable; function respondToTaskV2( bytes32 batchMerkleRoot, address senderAddress, IBLSSignatureChecker.NonSignerStakesAndSignature memory nonSignerStakesAndSignature ) external; function verifyBatchInclusion( bytes32 proofCommitment, bytes32 pubInputCommitment, bytes32 provingSystemAuxDataCommitment, bytes20 proofGeneratorAddr, bytes32 batchMerkleRoot, bytes memory merkleProof, uint256 verificationDataBatchIndex, address senderAddress ) external view returns (bool); function balanceOf(address account) external view returns (uint256); function setAggregator(address _aggregator) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol) pragma solidity ^0.8.0; import "../utils/ContextUpgradeable.sol"; import "../proxy/utils/Initializable.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 OwnableUpgradeable is Initializable, ContextUpgradeable { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ function __Ownable_init() internal onlyInitializing { __Ownable_init_unchained(); } function __Ownable_init_unchained() internal onlyInitializing { _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); } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[49] private __gap; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (proxy/utils/Initializable.sol) pragma solidity ^0.8.2; import "../../utils/AddressUpgradeable.sol"; /** * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect. * * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in * case an upgrade adds a module that needs to be initialized. * * For example: * * [.hljs-theme-light.nopadding] * ``` * contract MyToken is ERC20Upgradeable { * function initialize() initializer public { * __ERC20_init("MyToken", "MTK"); * } * } * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable { * function initializeV2() reinitializer(2) public { * __ERC20Permit_init("MyToken"); * } * } * ``` * * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}. * * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity. * * [CAUTION] * ==== * Avoid leaving a contract uninitialized. * * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed: * * [.hljs-theme-light.nopadding] * ``` * /// @custom:oz-upgrades-unsafe-allow constructor * constructor() { * _disableInitializers(); * } * ``` * ==== */ abstract contract Initializable { /** * @dev Indicates that the contract has been initialized. * @custom:oz-retyped-from bool */ uint8 private _initialized; /** * @dev Indicates that the contract is in the process of being initialized. */ bool private _initializing; /** * @dev Triggered when the contract has been initialized or reinitialized. */ event Initialized(uint8 version); /** * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope, * `onlyInitializing` functions can be used to initialize parent contracts. Equivalent to `reinitializer(1)`. */ modifier initializer() { bool isTopLevelCall = !_initializing; require( (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1), "Initializable: contract is already initialized" ); _initialized = 1; if (isTopLevelCall) { _initializing = true; } _; if (isTopLevelCall) { _initializing = false; emit Initialized(1); } } /** * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be * used to initialize parent contracts. * * `initializer` is equivalent to `reinitializer(1)`, so a reinitializer may be used after the original * initialization step. This is essential to configure modules that are added through upgrades and that require * initialization. * * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in * a contract, executing them in the right order is up to the developer or operator. */ modifier reinitializer(uint8 version) { require(!_initializing && _initialized < version, "Initializable: contract is already initialized"); _initialized = version; _initializing = true; _; _initializing = false; emit Initialized(version); } /** * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the * {initializer} and {reinitializer} modifiers, directly or indirectly. */ modifier onlyInitializing() { require(_initializing, "Initializable: contract is not initializing"); _; } /** * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call. * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized * to any version. It is recommended to use this to lock implementation contracts that are designed to be called * through proxies. */ function _disableInitializers() internal virtual { require(!_initializing, "Initializable: contract is initializing"); if (_initialized < type(uint8).max) { _initialized = type(uint8).max; emit Initialized(type(uint8).max); } } }
// SPDX-License-Identifier: 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 "./ISignatureUtils.sol"; interface IAVSDirectory is ISignatureUtils { /// @notice Enum representing the status of an operator's registration with an AVS enum OperatorAVSRegistrationStatus { UNREGISTERED, // Operator not registered to AVS REGISTERED // Operator registered to AVS } /** * @notice Emitted when @param avs 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 AVSMetadataURIUpdated(address indexed avs, string metadataURI); /// @notice Emitted when an operator's registration status for an AVS is updated event OperatorAVSRegistrationStatusUpdated(address indexed operator, address indexed avs, OperatorAVSRegistrationStatus status); /** * @notice Called by an avs to register an operator with the avs. * @param operator The address of the operator to register. * @param operatorSignature The signature, salt, and expiry of the operator's signature. */ function registerOperatorToAVS( address operator, ISignatureUtils.SignatureWithSaltAndExpiry memory operatorSignature ) external; /** * @notice Called by an avs to deregister an operator with the avs. * @param operator The address of the operator to deregister. */ function deregisterOperatorFromAVS(address operator) external; /** * @notice Called by an AVS to emit an `AVSMetadataURIUpdated` event indicating the information has updated. * @param metadataURI The URI for metadata associated with an AVS * @dev Note that the `metadataURI` is *never stored * and is only emitted in the `AVSMetadataURIUpdated` event */ function updateAVSMetadataURI(string calldata metadataURI) external; /** * @notice Returns whether or not the salt has already been used by the operator. * @dev Salts is used in the `registerOperatorToAVS` function. */ function operatorSaltIsSpent(address operator, bytes32 salt) external view returns (bool); /** * @notice Calculates the digest hash to be signed by an operator to register with an AVS * @param operator The account registering as an operator * @param avs The AVS the operator is registering to * @param salt A unique and single use value associated with the approver signature. * @param expiry Time after which the approver's signature becomes invalid */ function calculateOperatorAVSRegistrationDigestHash( address operator, address avs, bytes32 salt, uint256 expiry ) external view returns (bytes32); /// @notice The EIP-712 typehash for the Registration struct used by the contract function OPERATOR_AVS_REGISTRATION_TYPEHASH() external view returns (bytes32); }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.12; import {IServiceManager} from "./interfaces/IServiceManager.sol"; import {IRegistryCoordinator} from "./interfaces/IRegistryCoordinator.sol"; import {IStakeRegistry} from "./interfaces/IStakeRegistry.sol"; import {IAVSDirectory} from "eigenlayer-contracts/src/contracts/interfaces/IAVSDirectory.sol"; import {IRewardsCoordinator} from "eigenlayer-contracts/src/contracts/interfaces/IRewardsCoordinator.sol"; /** * @title Storage variables for the `ServiceManagerBase` contract. * @author Layr Labs, Inc. * @notice This storage contract is separate from the logic to simplify the upgrade process. */ abstract contract ServiceManagerBaseStorage is IServiceManager { /** * * CONSTANTS AND IMMUTABLES * */ IAVSDirectory internal immutable _avsDirectory; IRewardsCoordinator internal immutable _rewardsCoordinator; IRegistryCoordinator internal immutable _registryCoordinator; IStakeRegistry internal immutable _stakeRegistry; /** * * STATE VARIABLES * */ /// @notice The address of the entity that can initiate rewards address public rewardsInitiator; /// @notice Sets the (immutable) `_avsDirectory`, `_rewardsCoordinator`, `_registryCoordinator`, and `_stakeRegistry` addresses constructor( IAVSDirectory __avsDirectory, IRewardsCoordinator __rewardsCoordinator, IRegistryCoordinator __registryCoordinator, IStakeRegistry __stakeRegistry ) { _avsDirectory = __avsDirectory; _rewardsCoordinator = __rewardsCoordinator; _registryCoordinator = __registryCoordinator; _stakeRegistry = __stakeRegistry; } // storage gap for upgradeability uint256[49] private __GAP; }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity >=0.5.0; import {IRewardsCoordinator} from "eigenlayer-contracts/src/contracts/interfaces/IRewardsCoordinator.sol"; import {IServiceManagerUI} from "./IServiceManagerUI.sol"; /** * @title Minimal interface for a ServiceManager-type contract that forms the single point for an AVS to push updates to EigenLayer * @author Layr Labs, Inc. */ interface IServiceManager is IServiceManagerUI { /** * @notice Creates a new rewards submission to the EigenLayer RewardsCoordinator contract, to be split amongst the * set of stakers delegated to operators who are registered to this `avs` * @param rewardsSubmissions The rewards submissions being created * @dev Only callabe by the permissioned rewardsInitiator address * @dev The duration of the `rewardsSubmission` cannot exceed `MAX_REWARDS_DURATION` * @dev The tokens are sent to the `RewardsCoordinator` contract * @dev Strategies must be in ascending order of addresses to check for duplicates * @dev This function will revert if the `rewardsSubmission` is malformed, * e.g. if the `strategies` and `weights` arrays are of non-equal lengths */ function createAVSRewardsSubmission(IRewardsCoordinator.RewardsSubmission[] calldata rewardsSubmissions) external; // EVENTS event RewardsInitiatorUpdated(address prevRewardsInitiator, address newRewardsInitiator); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.12; /** * @title Library for Bitmap utilities such as converting between an array of bytes and a bitmap and finding the number of 1s in a bitmap. * @author Layr Labs, Inc. */ library BitmapUtils { /** * @notice Byte arrays are meant to contain unique bytes. * If the array length exceeds 256, then it's impossible for all entries to be unique. * This constant captures the max allowed array length (inclusive, i.e. 256 is allowed). */ uint256 internal constant MAX_BYTE_ARRAY_LENGTH = 256; /** * @notice Converts an ordered array of bytes into a bitmap. * @param orderedBytesArray The array of bytes to convert/compress into a bitmap. Must be in strictly ascending order. * @return The resulting bitmap. * @dev Each byte in the input is processed as indicating a single bit to flip in the bitmap. * @dev This function will eventually revert in the event that the `orderedBytesArray` is not properly ordered (in ascending order). * @dev This function will also revert if the `orderedBytesArray` input contains any duplicate entries (i.e. duplicate bytes). */ function orderedBytesArrayToBitmap(bytes memory orderedBytesArray) internal pure returns (uint256) { // sanity-check on input. a too-long input would fail later on due to having duplicate entry(s) require(orderedBytesArray.length <= MAX_BYTE_ARRAY_LENGTH, "BitmapUtils.orderedBytesArrayToBitmap: orderedBytesArray is too long"); // return empty bitmap early if length of array is 0 if (orderedBytesArray.length == 0) { return uint256(0); } // initialize the empty bitmap, to be built inside the loop uint256 bitmap; // initialize an empty uint256 to be used as a bitmask inside the loop uint256 bitMask; // perform the 0-th loop iteration with the ordering check *omitted* (since it is unnecessary / will always pass) // construct a single-bit mask from the numerical value of the 0th byte of the array, and immediately add it to the bitmap bitmap = uint256(1 << uint8(orderedBytesArray[0])); // loop through each byte in the array to construct the bitmap for (uint256 i = 1; i < orderedBytesArray.length; ++i) { // construct a single-bit mask from the numerical value of the next byte of the array bitMask = uint256(1 << uint8(orderedBytesArray[i])); // check strictly ascending array ordering by comparing the mask to the bitmap so far (revert if mask isn't greater than bitmap) require(bitMask > bitmap, "BitmapUtils.orderedBytesArrayToBitmap: orderedBytesArray is not ordered"); // add the entry to the bitmap bitmap = (bitmap | bitMask); } return bitmap; } /** * @notice Converts an ordered byte array to a bitmap, validating that all bits are less than `bitUpperBound` * @param orderedBytesArray The array to convert to a bitmap; must be in strictly ascending order * @param bitUpperBound The exclusive largest bit. Each bit must be strictly less than this value. * @dev Reverts if bitmap contains a bit greater than or equal to `bitUpperBound` */ function orderedBytesArrayToBitmap(bytes memory orderedBytesArray, uint8 bitUpperBound) internal pure returns (uint256) { uint256 bitmap = orderedBytesArrayToBitmap(orderedBytesArray); require((1 << bitUpperBound) > bitmap, "BitmapUtils.orderedBytesArrayToBitmap: bitmap exceeds max value" ); return bitmap; } /** * @notice Utility function for checking if a bytes array is strictly ordered, in ascending order. * @param bytesArray the bytes array of interest * @return Returns 'true' if the array is ordered in strictly ascending order, and 'false' otherwise. * @dev This function returns 'true' for the edge case of the `bytesArray` having zero length. * It also returns 'false' early for arrays with length in excess of MAX_BYTE_ARRAY_LENGTH (i.e. so long that they cannot be strictly ordered) */ function isArrayStrictlyAscendingOrdered(bytes calldata bytesArray) internal pure returns (bool) { // Return early if the array is too long, or has a length of 0 if (bytesArray.length > MAX_BYTE_ARRAY_LENGTH) { return false; } if (bytesArray.length == 0) { return true; } // Perform the 0-th loop iteration by pulling the 0th byte out of the array bytes1 singleByte = bytesArray[0]; // For each byte, validate that each entry is *strictly greater than* the previous // If it isn't, return false as the array is not ordered for (uint256 i = 1; i < bytesArray.length; ++i) { if (uint256(uint8(bytesArray[i])) <= uint256(uint8(singleByte))) { return false; } // Pull the next byte out of the array singleByte = bytesArray[i]; } return true; } /** * @notice Converts a bitmap into an array of bytes. * @param bitmap The bitmap to decompress/convert to an array of bytes. * @return bytesArray The resulting bitmap array of bytes. * @dev Each byte in the input is processed as indicating a single bit to flip in the bitmap */ function bitmapToBytesArray(uint256 bitmap) internal pure returns (bytes memory /*bytesArray*/) { // initialize an empty uint256 to be used as a bitmask inside the loop uint256 bitMask; // allocate only the needed amount of memory bytes memory bytesArray = new bytes(countNumOnes(bitmap)); // track the array index to assign to uint256 arrayIndex = 0; /** * loop through each index in the bitmap to construct the array, * but short-circuit the loop if we reach the number of ones and thus are done * assigning to memory */ for (uint256 i = 0; (arrayIndex < bytesArray.length) && (i < 256); ++i) { // construct a single-bit mask for the i-th bit bitMask = uint256(1 << i); // check if the i-th bit is flipped in the bitmap if (bitmap & bitMask != 0) { // if the i-th bit is flipped, then add a byte encoding the value 'i' to the `bytesArray` bytesArray[arrayIndex] = bytes1(uint8(i)); // increment the bytesArray slot since we've assigned one more byte of memory unchecked{ ++arrayIndex; } } } return bytesArray; } /// @return count number of ones in binary representation of `n` function countNumOnes(uint256 n) internal pure returns (uint16) { uint16 count = 0; while (n > 0) { n &= (n - 1); // Clear the least significant bit (turn off the rightmost set bit). count++; // Increment the count for each cleared bit (each one encountered). } return count; // Return the total count of ones in the binary representation of n. } /// @notice Returns `true` if `bit` is in `bitmap`. Returns `false` otherwise. function isSet(uint256 bitmap, uint8 bit) internal pure returns (bool) { return 1 == ((bitmap >> bit) & 1); } /** * @notice Returns a copy of `bitmap` with `bit` set. * @dev IMPORTANT: we're dealing with stack values here, so this doesn't modify * the original bitmap. Using this correctly requires an assignment statement: * `bitmap = bitmap.setBit(bit);` */ function setBit(uint256 bitmap, uint8 bit) internal pure returns (uint256) { return bitmap | (1 << bit); } /** * @notice Returns true if `bitmap` has no set bits */ function isEmpty(uint256 bitmap) internal pure returns (bool) { return bitmap == 0; } /** * @notice Returns true if `a` and `b` have no common set bits */ function noBitsInCommon(uint256 a, uint256 b) internal pure returns (bool) { return a & b == 0; } /** * @notice Returns true if `a` is a subset of `b`: ALL of the bits in `a` are also in `b` */ function isSubsetOf(uint256 a, uint256 b) internal pure returns (bool) { return a & b == a; } /** * @notice Returns a new bitmap that contains all bits set in either `a` or `b` * @dev Result is the union of `a` and `b` */ function plus(uint256 a, uint256 b) internal pure returns (uint256) { return a | b; } /** * @notice Returns a new bitmap that clears all set bits of `b` from `a` * @dev Negates `b` and returns the intersection of the result with `a` */ function minus(uint256 a, uint256 b) internal pure returns (uint256) { return a & ~b; } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.12; import {IRegistryCoordinator} from "./IRegistryCoordinator.sol"; import {IBLSApkRegistry} from "./IBLSApkRegistry.sol"; import {IStakeRegistry, IDelegationManager} from "./IStakeRegistry.sol"; import {BN254} from "../libraries/BN254.sol"; /** * @title Used for checking BLS aggregate signatures from the operators of a EigenLayer AVS with the RegistryCoordinator/BLSApkRegistry/StakeRegistry architechture. * @author Layr Labs, Inc. * @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service * @notice This is the contract for checking the validity of aggregate operator signatures. */ interface IBLSSignatureChecker { // DATA STRUCTURES struct NonSignerStakesAndSignature { uint32[] nonSignerQuorumBitmapIndices; // is the indices of all nonsigner quorum bitmaps BN254.G1Point[] nonSignerPubkeys; // is the G1 pubkeys of all nonsigners BN254.G1Point[] quorumApks; // is the aggregate G1 pubkey of each quorum BN254.G2Point apkG2; // is the aggregate G2 pubkey of all signers BN254.G1Point sigma; // is the aggregate G1 signature of all signers uint32[] quorumApkIndices; // is the indices of each quorum aggregate pubkey uint32[] totalStakeIndices; // is the indices of each quorums total stake uint32[][] nonSignerStakeIndices; // is the indices of each non signers stake within a quorum } /** * @notice this data structure is used for recording the details on the total stake of the registered * operators and those operators who are part of the quorum for a particular taskNumber */ struct QuorumStakeTotals { // total stake of the operators in each quorum uint96[] signedStakeForQuorum; // total amount staked by all operators in each quorum uint96[] totalStakeForQuorum; } // EVENTS /// @notice Emitted when `staleStakesForbiddenUpdate` is set event StaleStakesForbiddenUpdate(bool value); // CONSTANTS & IMMUTABLES function registryCoordinator() external view returns (IRegistryCoordinator); function stakeRegistry() external view returns (IStakeRegistry); function blsApkRegistry() external view returns (IBLSApkRegistry); function delegation() external view returns (IDelegationManager); /** * @notice This function is called by disperser when it has aggregated all the signatures of the operators * that are part of the quorum for a particular taskNumber and is asserting them into onchain. The function * checks that the claim for aggregated signatures are valid. * * The thesis of this procedure entails: * - getting the aggregated pubkey of all registered nodes at the time of pre-commit by the * disperser (represented by apk in the parameters), * - subtracting the pubkeys of all the signers not in the quorum (nonSignerPubkeys) and storing * the output in apk to get aggregated pubkey of all operators that are part of quorum. * - use this aggregated pubkey to verify the aggregated signature under BLS scheme. * * @dev Before signature verification, the function verifies operator stake information. This includes ensuring that the provided `referenceBlockNumber` * is correct, i.e., ensure that the stake returned from the specified block number is recent enough and that the stake is either the most recent update * for the total stake (or the operator) or latest before the referenceBlockNumber. */ function checkSignatures( bytes32 msgHash, uint32 referenceBlockNumber, NonSignerStakesAndSignature memory nonSignerStakesAndSignature ) external view returns ( QuorumStakeTotals memory, bytes32 ); }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.12; import {IRegistry} from "./IRegistry.sol"; import {BN254} from "../libraries/BN254.sol"; /** * @title Minimal interface for a registry that keeps track of aggregate operator public keys across many quorums. * @author Layr Labs, Inc. */ interface IBLSApkRegistry is IRegistry { // STRUCTS /// @notice Data structure used to track the history of the Aggregate Public Key of all operators struct ApkUpdate { // first 24 bytes of keccak256(apk_x0, apk_x1, apk_y0, apk_y1) bytes24 apkHash; // block number at which the update occurred uint32 updateBlockNumber; // block number at which the next update occurred uint32 nextUpdateBlockNumber; } /** * @notice Struct used when registering a new public key * @param pubkeyRegistrationSignature is the registration message signed by the private key of the operator * @param pubkeyG1 is the corresponding G1 public key of the operator * @param pubkeyG2 is the corresponding G2 public key of the operator */ struct PubkeyRegistrationParams { BN254.G1Point pubkeyRegistrationSignature; BN254.G1Point pubkeyG1; BN254.G2Point pubkeyG2; } // EVENTS /// @notice Emitted when `operator` registers with the public keys `pubkeyG1` and `pubkeyG2`. event NewPubkeyRegistration(address indexed operator, BN254.G1Point pubkeyG1, BN254.G2Point pubkeyG2); // @notice Emitted when a new operator pubkey is registered for a set of quorums event OperatorAddedToQuorums( address operator, bytes32 operatorId, bytes quorumNumbers ); // @notice Emitted when an operator pubkey is removed from a set of quorums event OperatorRemovedFromQuorums( address operator, bytes32 operatorId, bytes quorumNumbers ); /** * @notice Registers the `operator`'s pubkey for the specified `quorumNumbers`. * @param operator The address of the operator to register. * @param quorumNumbers The quorum numbers the operator is registering for, where each byte is an 8 bit integer quorumNumber. * @dev access restricted to the RegistryCoordinator * @dev Preconditions (these are assumed, not validated in this contract): * 1) `quorumNumbers` has no duplicates * 2) `quorumNumbers.length` != 0 * 3) `quorumNumbers` is ordered in ascending order * 4) the operator is not already registered */ function registerOperator(address operator, bytes calldata quorumNumbers) external; /** * @notice Deregisters the `operator`'s pubkey for the specified `quorumNumbers`. * @param operator The address of the operator to deregister. * @param quorumNumbers The quorum numbers the operator is deregistering from, where each byte is an 8 bit integer quorumNumber. * @dev access restricted to the RegistryCoordinator * @dev Preconditions (these are assumed, not validated in this contract): * 1) `quorumNumbers` has no duplicates * 2) `quorumNumbers.length` != 0 * 3) `quorumNumbers` is ordered in ascending order * 4) the operator is not already deregistered * 5) `quorumNumbers` is a subset of the quorumNumbers that the operator is registered for */ function deregisterOperator(address operator, bytes calldata quorumNumbers) external; /** * @notice Initializes a new quorum by pushing its first apk update * @param quorumNumber The number of the new quorum */ function initializeQuorum(uint8 quorumNumber) external; /** * @notice mapping from operator address to pubkey hash. * Returns *zero* if the `operator` has never registered, and otherwise returns the hash of the public key of the operator. */ function operatorToPubkeyHash(address operator) external view returns (bytes32); /** * @notice mapping from pubkey hash to operator address. * Returns *zero* if no operator has ever registered the public key corresponding to `pubkeyHash`, * and otherwise returns the (unique) registered operator who owns the BLS public key that is the preimage of `pubkeyHash`. */ function pubkeyHashToOperator(bytes32 pubkeyHash) external view returns (address); /** * @notice Called by the RegistryCoordinator register an operator as the owner of a BLS public key. * @param operator is the operator for whom the key is being registered * @param params contains the G1 & G2 public keys of the operator, and a signature proving their ownership * @param pubkeyRegistrationMessageHash is a hash that the operator must sign to prove key ownership */ function registerBLSPublicKey( address operator, PubkeyRegistrationParams calldata params, BN254.G1Point calldata pubkeyRegistrationMessageHash ) external returns (bytes32 operatorId); /** * @notice Returns the pubkey and pubkey hash of an operator * @dev Reverts if the operator has not registered a valid pubkey */ function getRegisteredPubkey(address operator) external view returns (BN254.G1Point memory, bytes32); /// @notice Returns the current APK for the provided `quorumNumber ` function getApk(uint8 quorumNumber) external view returns (BN254.G1Point memory); /// @notice Returns the index of the quorumApk index at `blockNumber` for the provided `quorumNumber` function getApkIndicesAtBlockNumber(bytes calldata quorumNumbers, uint256 blockNumber) external view returns(uint32[] memory); /// @notice Returns the `ApkUpdate` struct at `index` in the list of APK updates for the `quorumNumber` function getApkUpdateAtIndex(uint8 quorumNumber, uint256 index) external view returns (ApkUpdate memory); /// @notice Returns the operator address for the given `pubkeyHash` function getOperatorFromPubkeyHash(bytes32 pubkeyHash) external view returns (address); /** * @notice get 24 byte hash of the apk of `quorumNumber` at `blockNumber` using the provided `index`; * called by checkSignatures in BLSSignatureChecker.sol. * @param quorumNumber is the quorum whose ApkHash is being retrieved * @param blockNumber is the number of the block for which the latest ApkHash will be retrieved * @param index is the index of the apkUpdate being retrieved from the list of quorum apkUpdates in storage */ function getApkHashAtBlockNumberAndIndex(uint8 quorumNumber, uint32 blockNumber, uint256 index) external view returns (bytes24); /// @notice returns the ID used to identify the `operator` within this AVS. /// @dev Returns zero in the event that the `operator` has never registered for the AVS function getOperatorId(address operator) external view returns (bytes32); }
// SPDX-License-Identifier: MIT // several functions are taken or adapted from https://github.com/HarryR/solcrypto/blob/master/contracts/altbn128.sol (MIT license): // Copyright 2017 Christian Reitwiessner // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to // deal in the Software without restriction, including without limitation the // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or // sell copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS // IN THE SOFTWARE. // The remainder of the code in this library is written by LayrLabs Inc. and is also under an MIT license pragma solidity ^0.8.12; /** * @title Library for operations on the BN254 elliptic curve. * @author Layr Labs, Inc. * @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service * @notice Contains BN254 parameters, common operations (addition, scalar mul, pairing), and BLS signature functionality. */ library BN254 { // modulus for the underlying field F_p of the elliptic curve uint256 internal constant FP_MODULUS = 21888242871839275222246405745257275088696311157297823662689037894645226208583; // modulus for the underlying field F_r of the elliptic curve uint256 internal constant FR_MODULUS = 21888242871839275222246405745257275088548364400416034343698204186575808495617; struct G1Point { uint256 X; uint256 Y; } // Encoding of field elements is: X[1] * i + X[0] struct G2Point { uint256[2] X; uint256[2] Y; } function generatorG1() internal pure returns (G1Point memory) { return G1Point(1, 2); } // generator of group G2 /// @dev Generator point in F_q2 is of the form: (x0 + ix1, y0 + iy1). uint256 internal constant G2x1 = 11559732032986387107991004021392285783925812861821192530917403151452391805634; uint256 internal constant G2x0 = 10857046999023057135944570762232829481370756359578518086990519993285655852781; uint256 internal constant G2y1 = 4082367875863433681332203403145435568316851327593401208105741076214120093531; uint256 internal constant G2y0 = 8495653923123431417604973247489272438418190587263600148770280649306958101930; /// @notice returns the G2 generator /// @dev mind the ordering of the 1s and 0s! /// this is because of the (unknown to us) convention used in the bn254 pairing precompile contract /// "Elements a * i + b of F_p^2 are encoded as two elements of F_p, (a, b)." /// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-197.md#encoding function generatorG2() internal pure returns (G2Point memory) { return G2Point([G2x1, G2x0], [G2y1, G2y0]); } // negation of the generator of group G2 /// @dev Generator point in F_q2 is of the form: (x0 + ix1, y0 + iy1). uint256 internal constant nG2x1 = 11559732032986387107991004021392285783925812861821192530917403151452391805634; uint256 internal constant nG2x0 = 10857046999023057135944570762232829481370756359578518086990519993285655852781; uint256 internal constant nG2y1 = 17805874995975841540914202342111839520379459829704422454583296818431106115052; uint256 internal constant nG2y0 = 13392588948715843804641432497768002650278120570034223513918757245338268106653; function negGeneratorG2() internal pure returns (G2Point memory) { return G2Point([nG2x1, nG2x0], [nG2y1, nG2y0]); } bytes32 internal constant powersOfTauMerkleRoot = 0x22c998e49752bbb1918ba87d6d59dd0e83620a311ba91dd4b2cc84990b31b56f; /** * @param p Some point in G1. * @return The negation of `p`, i.e. p.plus(p.negate()) should be zero. */ function negate(G1Point memory p) internal pure returns (G1Point memory) { // The prime q in the base field F_q for G1 if (p.X == 0 && p.Y == 0) { return G1Point(0, 0); } else { return G1Point(p.X, FP_MODULUS - (p.Y % FP_MODULUS)); } } /** * @return r the sum of two points of G1 */ function plus(G1Point memory p1, G1Point memory p2) internal view returns (G1Point memory r) { uint256[4] memory input; input[0] = p1.X; input[1] = p1.Y; input[2] = p2.X; input[3] = p2.Y; bool success; // solium-disable-next-line security/no-inline-assembly assembly { success := staticcall(sub(gas(), 2000), 6, input, 0x80, r, 0x40) // Use "invalid" to make gas estimation work switch success case 0 { invalid() } } require(success, "ec-add-failed"); } /** * @notice an optimized ecMul implementation that takes O(log_2(s)) ecAdds * @param p the point to multiply * @param s the scalar to multiply by * @dev this function is only safe to use if the scalar is 9 bits or less */ function scalar_mul_tiny(BN254.G1Point memory p, uint16 s) internal view returns (BN254.G1Point memory) { require(s < 2**9, "scalar-too-large"); // if s is 1 return p if(s == 1) { return p; } // the accumulated product to return BN254.G1Point memory acc = BN254.G1Point(0, 0); // the 2^n*p to add to the accumulated product in each iteration BN254.G1Point memory p2n = p; // value of most significant bit uint16 m = 1; // index of most significant bit uint8 i = 0; //loop until we reach the most significant bit while(s >= m){ unchecked { // if the current bit is 1, add the 2^n*p to the accumulated product if ((s >> i) & 1 == 1) { acc = plus(acc, p2n); } // double the 2^n*p for the next iteration p2n = plus(p2n, p2n); // increment the index and double the value of the most significant bit m <<= 1; ++i; } } // return the accumulated product return acc; } /** * @return r the product of a point on G1 and a scalar, i.e. * p == p.scalar_mul(1) and p.plus(p) == p.scalar_mul(2) for all * points p. */ function scalar_mul(G1Point memory p, uint256 s) internal view returns (G1Point memory r) { uint256[3] memory input; input[0] = p.X; input[1] = p.Y; input[2] = s; bool success; // solium-disable-next-line security/no-inline-assembly assembly { success := staticcall(sub(gas(), 2000), 7, input, 0x60, r, 0x40) // Use "invalid" to make gas estimation work switch success case 0 { invalid() } } require(success, "ec-mul-failed"); } /** * @return The result of computing the pairing check * e(p1[0], p2[0]) * .... * e(p1[n], p2[n]) == 1 * For example, * pairing([P1(), P1().negate()], [P2(), P2()]) should return true. */ function pairing( G1Point memory a1, G2Point memory a2, G1Point memory b1, G2Point memory b2 ) internal view returns (bool) { G1Point[2] memory p1 = [a1, b1]; G2Point[2] memory p2 = [a2, b2]; uint256[12] memory input; for (uint256 i = 0; i < 2; i++) { uint256 j = i * 6; input[j + 0] = p1[i].X; input[j + 1] = p1[i].Y; input[j + 2] = p2[i].X[0]; input[j + 3] = p2[i].X[1]; input[j + 4] = p2[i].Y[0]; input[j + 5] = p2[i].Y[1]; } uint256[1] memory out; bool success; // solium-disable-next-line security/no-inline-assembly assembly { success := staticcall(sub(gas(), 2000), 8, input, mul(12, 0x20), out, 0x20) // Use "invalid" to make gas estimation work switch success case 0 { invalid() } } require(success, "pairing-opcode-failed"); return out[0] != 0; } /** * @notice This function is functionally the same as pairing(), however it specifies a gas limit * the user can set, as a precompile may use the entire gas budget if it reverts. */ function safePairing( G1Point memory a1, G2Point memory a2, G1Point memory b1, G2Point memory b2, uint256 pairingGas ) internal view returns (bool, bool) { G1Point[2] memory p1 = [a1, b1]; G2Point[2] memory p2 = [a2, b2]; uint256[12] memory input; for (uint256 i = 0; i < 2; i++) { uint256 j = i * 6; input[j + 0] = p1[i].X; input[j + 1] = p1[i].Y; input[j + 2] = p2[i].X[0]; input[j + 3] = p2[i].X[1]; input[j + 4] = p2[i].Y[0]; input[j + 5] = p2[i].Y[1]; } uint256[1] memory out; bool success; // solium-disable-next-line security/no-inline-assembly assembly { success := staticcall(pairingGas, 8, input, mul(12, 0x20), out, 0x20) } //Out is the output of the pairing precompile, either 0 or 1 based on whether the two pairings are equal. //Success is true if the precompile actually goes through (aka all inputs are valid) return (success, out[0] != 0); } /// @return hashedG1 the keccak256 hash of the G1 Point /// @dev used for BLS signatures function hashG1Point(BN254.G1Point memory pk) internal pure returns (bytes32 hashedG1) { assembly { mstore(0, mload(pk)) mstore(0x20, mload(add(0x20, pk))) hashedG1 := keccak256(0, 0x40) } } /// @return the keccak256 hash of the G2 Point /// @dev used for BLS signatures function hashG2Point( BN254.G2Point memory pk ) internal pure returns (bytes32) { return keccak256(abi.encodePacked(pk.X[0], pk.X[1], pk.Y[0], pk.Y[1])); } /** * @notice adapted from https://github.com/HarryR/solcrypto/blob/master/contracts/altbn128.sol */ function hashToG1(bytes32 _x) internal view returns (G1Point memory) { uint256 beta = 0; uint256 y = 0; uint256 x = uint256(_x) % FP_MODULUS; while (true) { (beta, y) = findYFromX(x); // y^2 == beta if( beta == mulmod(y, y, FP_MODULUS) ) { return G1Point(x, y); } x = addmod(x, 1, FP_MODULUS); } return G1Point(0, 0); } /** * Given X, find Y * * where y = sqrt(x^3 + b) * * Returns: (x^3 + b), y */ function findYFromX(uint256 x) internal view returns (uint256, uint256) { // beta = (x^3 + b) % p uint256 beta = addmod(mulmod(mulmod(x, x, FP_MODULUS), x, FP_MODULUS), 3, FP_MODULUS); // y^2 = x^3 + b // this acts like: y = sqrt(beta) = beta^((p+1) / 4) uint256 y = expMod(beta, 0xc19139cb84c680a6e14116da060561765e05aa45a1c72a34f082305b61f3f52, FP_MODULUS); return (beta, y); } function expMod(uint256 _base, uint256 _exponent, uint256 _modulus) internal view returns (uint256 retval) { bool success; uint256[1] memory output; uint[6] memory input; input[0] = 0x20; // baseLen = new(big.Int).SetBytes(getData(input, 0, 32)) input[1] = 0x20; // expLen = new(big.Int).SetBytes(getData(input, 32, 32)) input[2] = 0x20; // modLen = new(big.Int).SetBytes(getData(input, 64, 32)) input[3] = _base; input[4] = _exponent; input[5] = _modulus; assembly { success := staticcall(sub(gas(), 2000), 5, input, 0xc0, output, 0x20) // Use "invalid" to make gas estimation work switch success case 0 { invalid() } } require(success, "BN254.expMod: call failure"); return output[0]; } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.12; import {IRegistry} from "./IRegistry.sol"; /** * @title Interface for a `Registry`-type contract that keeps track of an ordered list of operators for up to 256 quorums. * @author Layr Labs, Inc. */ interface IIndexRegistry is IRegistry { // EVENTS // emitted when an operator's index in the ordered operator list for the quorum with number `quorumNumber` is updated event QuorumIndexUpdate(bytes32 indexed operatorId, uint8 quorumNumber, uint32 newOperatorIndex); // DATA STRUCTURES // struct used to give definitive ordering to operators at each blockNumber. struct OperatorUpdate { // blockNumber number from which `operatorIndex` was the operators index // the operator's index is the first entry such that `blockNumber >= entry.fromBlockNumber` uint32 fromBlockNumber; // the operator at this index bytes32 operatorId; } // struct used to denote the number of operators in a quorum at a given blockNumber struct QuorumUpdate { // The total number of operators at a `blockNumber` is the first entry such that `blockNumber >= entry.fromBlockNumber` uint32 fromBlockNumber; // The number of operators at `fromBlockNumber` uint32 numOperators; } /** * @notice Registers the operator with the specified `operatorId` for the quorums specified by `quorumNumbers`. * @param operatorId is the id of the operator that is being registered * @param quorumNumbers is the quorum numbers the operator is registered for * @return numOperatorsPerQuorum is a list of the number of operators (including the registering operator) in each of the quorums the operator is registered for * @dev access restricted to the RegistryCoordinator * @dev Preconditions (these are assumed, not validated in this contract): * 1) `quorumNumbers` has no duplicates * 2) `quorumNumbers.length` != 0 * 3) `quorumNumbers` is ordered in ascending order * 4) the operator is not already registered */ function registerOperator(bytes32 operatorId, bytes calldata quorumNumbers) external returns(uint32[] memory); /** * @notice Deregisters the operator with the specified `operatorId` for the quorums specified by `quorumNumbers`. * @param operatorId is the id of the operator that is being deregistered * @param quorumNumbers is the quorum numbers the operator is deregistered for * @dev access restricted to the RegistryCoordinator * @dev Preconditions (these are assumed, not validated in this contract): * 1) `quorumNumbers` has no duplicates * 2) `quorumNumbers.length` != 0 * 3) `quorumNumbers` is ordered in ascending order * 4) the operator is not already deregistered * 5) `quorumNumbers` is a subset of the quorumNumbers that the operator is registered for */ function deregisterOperator(bytes32 operatorId, bytes calldata quorumNumbers) external; /** * @notice Initialize a quorum by pushing its first quorum update * @param quorumNumber The number of the new quorum */ function initializeQuorum(uint8 quorumNumber) external; /// @notice Returns the OperatorUpdate entry for the specified `operatorIndex` and `quorumNumber` at the specified `arrayIndex` function getOperatorUpdateAtIndex( uint8 quorumNumber, uint32 operatorIndex, uint32 arrayIndex ) external view returns (OperatorUpdate memory); /// @notice Returns the QuorumUpdate entry for the specified `quorumNumber` at the specified `quorumIndex` function getQuorumUpdateAtIndex(uint8 quorumNumber, uint32 quorumIndex) external view returns (QuorumUpdate memory); /// @notice Returns the most recent OperatorUpdate entry for the specified quorumNumber and operatorIndex function getLatestOperatorUpdate(uint8 quorumNumber, uint32 operatorIndex) external view returns (OperatorUpdate memory); /// @notice Returns the most recent QuorumUpdate entry for the specified quorumNumber function getLatestQuorumUpdate(uint8 quorumNumber) external view returns (QuorumUpdate memory); /// @notice Returns the current number of operators of this service for `quorumNumber`. function totalOperatorsForQuorum(uint8 quorumNumber) external view returns (uint32); /// @notice Returns an ordered list of operators of the services for the given `quorumNumber` at the given `blockNumber` function getOperatorListAtBlockNumber(uint8 quorumNumber, uint32 blockNumber) external view returns (bytes32[] memory); }
// 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 DEPRECATED -- this field is no longer used, payments are handled in PaymentCoordinator.sol address __deprecated_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 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 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. */ 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 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 return address of the beaconChainETHStrategy function beaconChainETHStrategy() external view returns (IStrategy); /** * @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); }
// 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; /** * @title Minimal interface for a `Registry`-type contract. * @author Layr Labs, Inc. * @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service * @notice Functions related to the registration process itself have been intentionally excluded * because their function signatures may vary significantly. */ interface IRegistry { function registryCoordinator() external view returns (address); }
// 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; /** * @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 // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; import "../proxy/utils/Initializable.sol"; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract ContextUpgradeable is Initializable { function __Context_init() internal onlyInitializing { } function __Context_init_unchained() internal onlyInitializing { } function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[50] private __gap; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library AddressUpgradeable { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity >=0.5.0; import {ISignatureUtils} from "eigenlayer-contracts/src/contracts/interfaces/ISignatureUtils.sol"; import {IDelegationManager} from "eigenlayer-contracts/src/contracts/interfaces/IDelegationManager.sol"; /** * @title Minimal interface for a ServiceManager-type contract that AVS ServiceManager contracts must implement * for eigenlabs to be able to index their data on the AVS marketplace frontend. * @author Layr Labs, Inc. */ interface IServiceManagerUI { /** * Metadata should follow the format outlined by this example. { "name": "EigenLabs AVS 1", "website": "https://www.eigenlayer.xyz/", "description": "This is my 1st AVS", "logo": "https://holesky-operator-metadata.s3.amazonaws.com/eigenlayer.png", "twitter": "https://twitter.com/eigenlayer" } * @notice Updates the metadata URI for the AVS * @param _metadataURI is the metadata URI for the AVS */ function updateAVSMetadataURI(string memory _metadataURI) external; /** * @notice Forwards a call to EigenLayer's DelegationManager contract to confirm operator registration with the AVS * @param operator The address of the operator to register. * @param operatorSignature The signature, salt, and expiry of the operator's signature. */ function registerOperatorToAVS( address operator, 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 Returns the EigenLayer AVSDirectory contract. function avsDirectory() external view returns (address); }
// 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` is whitelisted for deposit function strategyIsWhitelistedForDeposit(IStrategy strategy) external view returns (bool); /** * @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); }
// 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 ^0.8.0; 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":"contract IAVSDirectory","name":"__avsDirectory","type":"address"},{"internalType":"contract IRewardsCoordinator","name":"__rewardsCoordinator","type":"address"},{"internalType":"contract IRegistryCoordinator","name":"__registryCoordinator","type":"address"},{"internalType":"contract IStakeRegistry","name":"__stakeRegistry","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"bytes32","name":"batchIdentifierHash","type":"bytes32"}],"name":"BatchAlreadyResponded","type":"error"},{"inputs":[{"internalType":"bytes32","name":"batchIdentifierHash","type":"bytes32"}],"name":"BatchAlreadySubmitted","type":"error"},{"inputs":[{"internalType":"bytes32","name":"batchIdentifierHash","type":"bytes32"}],"name":"BatchDoesNotExist","type":"error"},{"inputs":[{"internalType":"uint256","name":"respondToTaskFeeLimit","type":"uint256"},{"internalType":"uint256","name":"txCost","type":"uint256"}],"name":"ExceededMaxRespondFee","type":"error"},{"inputs":[{"internalType":"address","name":"batcher","type":"address"},{"internalType":"uint256","name":"required","type":"uint256"},{"internalType":"uint256","name":"available","type":"uint256"}],"name":"InsufficientFunds","type":"error"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"InvalidDepositAmount","type":"error"},{"inputs":[{"internalType":"uint256","name":"signedStake","type":"uint256"},{"internalType":"uint256","name":"requiredStake","type":"uint256"}],"name":"InvalidQuorumThreshold","type":"error"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"alignedAggregator","type":"address"}],"name":"SenderIsNotAggregator","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"batchMerkleRoot","type":"bytes32"},{"indexed":false,"internalType":"address","name":"senderAddress","type":"address"}],"name":"BatchVerified","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"batcher","type":"address"},{"indexed":false,"internalType":"uint256","name":"newBalance","type":"uint256"}],"name":"BatcherBalanceUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint8","name":"version","type":"uint8"}],"name":"Initialized","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"batchMerkleRoot","type":"bytes32"},{"indexed":false,"internalType":"address","name":"senderAddress","type":"address"},{"indexed":false,"internalType":"uint32","name":"taskCreatedBlock","type":"uint32"},{"indexed":false,"internalType":"string","name":"batchDataPointer","type":"string"}],"name":"NewBatchV2","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"batchMerkleRoot","type":"bytes32"},{"indexed":false,"internalType":"address","name":"senderAddress","type":"address"},{"indexed":false,"internalType":"uint32","name":"taskCreatedBlock","type":"uint32"},{"indexed":false,"internalType":"string","name":"batchDataPointer","type":"string"},{"indexed":false,"internalType":"uint256","name":"respondToTaskFeeLimit","type":"uint256"}],"name":"NewBatchV3","type":"event"},{"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":false,"internalType":"address","name":"prevRewardsInitiator","type":"address"},{"indexed":false,"internalType":"address","name":"newRewardsInitiator","type":"address"}],"name":"RewardsInitiatorUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bool","name":"value","type":"bool"}],"name":"StaleStakesForbiddenUpdate","type":"event"},{"inputs":[],"name":"alignedAggregator","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"avsDirectory","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"batchersBalances","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"batchesState","outputs":[{"internalType":"uint32","name":"taskCreatedBlock","type":"uint32"},{"internalType":"bool","name":"responded","type":"bool"},{"internalType":"uint256","name":"respondToTaskFeeLimit","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"blsApkRegistry","outputs":[{"internalType":"contract IBLSApkRegistry","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes","name":"publicInput","type":"bytes"},{"internalType":"bytes32","name":"hash","type":"bytes32"}],"name":"checkPublicInput","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"bytes32","name":"msgHash","type":"bytes32"},{"internalType":"uint32","name":"referenceBlockNumber","type":"uint32"},{"components":[{"internalType":"uint32[]","name":"nonSignerQuorumBitmapIndices","type":"uint32[]"},{"components":[{"internalType":"uint256","name":"X","type":"uint256"},{"internalType":"uint256","name":"Y","type":"uint256"}],"internalType":"struct BN254.G1Point[]","name":"nonSignerPubkeys","type":"tuple[]"},{"components":[{"internalType":"uint256","name":"X","type":"uint256"},{"internalType":"uint256","name":"Y","type":"uint256"}],"internalType":"struct BN254.G1Point[]","name":"quorumApks","type":"tuple[]"},{"components":[{"internalType":"uint256[2]","name":"X","type":"uint256[2]"},{"internalType":"uint256[2]","name":"Y","type":"uint256[2]"}],"internalType":"struct BN254.G2Point","name":"apkG2","type":"tuple"},{"components":[{"internalType":"uint256","name":"X","type":"uint256"},{"internalType":"uint256","name":"Y","type":"uint256"}],"internalType":"struct BN254.G1Point","name":"sigma","type":"tuple"},{"internalType":"uint32[]","name":"quorumApkIndices","type":"uint32[]"},{"internalType":"uint32[]","name":"totalStakeIndices","type":"uint32[]"},{"internalType":"uint32[][]","name":"nonSignerStakeIndices","type":"uint32[][]"}],"internalType":"struct IBLSSignatureChecker.NonSignerStakesAndSignature","name":"params","type":"tuple"}],"name":"checkSignatures","outputs":[{"components":[{"internalType":"uint96[]","name":"signedStakeForQuorum","type":"uint96[]"},{"internalType":"uint96[]","name":"totalStakeForQuorum","type":"uint96[]"}],"internalType":"struct IBLSSignatureChecker.QuorumStakeTotals","name":"","type":"tuple"},{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"components":[{"internalType":"contract IStrategy","name":"strategy","type":"address"},{"internalType":"uint96","name":"multiplier","type":"uint96"}],"internalType":"struct IRewardsCoordinator.StrategyAndMultiplier[]","name":"strategiesAndMultipliers","type":"tuple[]"},{"internalType":"contract IERC20","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint32","name":"startTimestamp","type":"uint32"},{"internalType":"uint32","name":"duration","type":"uint32"}],"internalType":"struct IRewardsCoordinator.RewardsSubmission[]","name":"rewardsSubmissions","type":"tuple[]"}],"name":"createAVSRewardsSubmission","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"batchMerkleRoot","type":"bytes32"},{"internalType":"string","name":"batchDataPointer","type":"string"},{"internalType":"uint256","name":"respondToTaskFeeLimit","type":"uint256"}],"name":"createNewTask","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"delegation","outputs":[{"internalType":"contract IDelegationManager","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"depositToBatcher","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"}],"name":"deregisterOperatorFromAVS","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"}],"name":"getOperatorRestakedStrategies","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getRestakeableStrategies","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_initialOwner","type":"address"},{"internalType":"address","name":"_rewardsInitiator","type":"address"},{"internalType":"address","name":"_alignedAggregator","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_alignedAggregator","type":"address"}],"name":"initializeAggregator","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"components":[{"internalType":"bytes","name":"signature","type":"bytes"},{"internalType":"bytes32","name":"salt","type":"bytes32"},{"internalType":"uint256","name":"expiry","type":"uint256"}],"internalType":"struct ISignatureUtils.SignatureWithSaltAndExpiry","name":"operatorSignature","type":"tuple"}],"name":"registerOperatorToAVS","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"registryCoordinator","outputs":[{"internalType":"contract IRegistryCoordinator","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"batchMerkleRoot","type":"bytes32"},{"internalType":"address","name":"senderAddress","type":"address"},{"components":[{"internalType":"uint32[]","name":"nonSignerQuorumBitmapIndices","type":"uint32[]"},{"components":[{"internalType":"uint256","name":"X","type":"uint256"},{"internalType":"uint256","name":"Y","type":"uint256"}],"internalType":"struct BN254.G1Point[]","name":"nonSignerPubkeys","type":"tuple[]"},{"components":[{"internalType":"uint256","name":"X","type":"uint256"},{"internalType":"uint256","name":"Y","type":"uint256"}],"internalType":"struct BN254.G1Point[]","name":"quorumApks","type":"tuple[]"},{"components":[{"internalType":"uint256[2]","name":"X","type":"uint256[2]"},{"internalType":"uint256[2]","name":"Y","type":"uint256[2]"}],"internalType":"struct BN254.G2Point","name":"apkG2","type":"tuple"},{"components":[{"internalType":"uint256","name":"X","type":"uint256"},{"internalType":"uint256","name":"Y","type":"uint256"}],"internalType":"struct BN254.G1Point","name":"sigma","type":"tuple"},{"internalType":"uint32[]","name":"quorumApkIndices","type":"uint32[]"},{"internalType":"uint32[]","name":"totalStakeIndices","type":"uint32[]"},{"internalType":"uint32[][]","name":"nonSignerStakeIndices","type":"uint32[][]"}],"internalType":"struct IBLSSignatureChecker.NonSignerStakesAndSignature","name":"nonSignerStakesAndSignature","type":"tuple"}],"name":"respondToTaskV2","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"rewardsInitiator","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_alignedAggregator","type":"address"}],"name":"setAggregator","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newRewardsInitiator","type":"address"}],"name":"setRewardsInitiator","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"value","type":"bool"}],"name":"setStaleStakesForbidden","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"stakeRegistry","outputs":[{"internalType":"contract IStakeRegistry","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"staleStakesForbidden","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"msgHash","type":"bytes32"},{"components":[{"internalType":"uint256","name":"X","type":"uint256"},{"internalType":"uint256","name":"Y","type":"uint256"}],"internalType":"struct BN254.G1Point","name":"apk","type":"tuple"},{"components":[{"internalType":"uint256[2]","name":"X","type":"uint256[2]"},{"internalType":"uint256[2]","name":"Y","type":"uint256[2]"}],"internalType":"struct BN254.G2Point","name":"apkG2","type":"tuple"},{"components":[{"internalType":"uint256","name":"X","type":"uint256"},{"internalType":"uint256","name":"Y","type":"uint256"}],"internalType":"struct BN254.G1Point","name":"sigma","type":"tuple"}],"name":"trySignatureAndApkVerification","outputs":[{"internalType":"bool","name":"pairingSuccessful","type":"bool"},{"internalType":"bool","name":"siganatureIsValid","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"_metadataURI","type":"string"}],"name":"updateAVSMetadataURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"proofCommitment","type":"bytes32"},{"internalType":"bytes32","name":"pubInputCommitment","type":"bytes32"},{"internalType":"bytes32","name":"provingSystemAuxDataCommitment","type":"bytes32"},{"internalType":"bytes20","name":"proofGeneratorAddr","type":"bytes20"},{"internalType":"bytes32","name":"batchMerkleRoot","type":"bytes32"},{"internalType":"bytes","name":"merkleProof","type":"bytes"},{"internalType":"uint256","name":"verificationDataBatchIndex","type":"uint256"},{"internalType":"address","name":"senderAddress","type":"address"}],"name":"verifyBatchInclusion","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"proofCommitment","type":"bytes32"},{"internalType":"bytes32","name":"pubInputCommitment","type":"bytes32"},{"internalType":"bytes32","name":"provingSystemAuxDataCommitment","type":"bytes32"},{"internalType":"bytes20","name":"proofGeneratorAddr","type":"bytes20"},{"internalType":"bytes32","name":"batchMerkleRoot","type":"bytes32"},{"internalType":"bytes","name":"merkleProof","type":"bytes"},{"internalType":"uint256","name":"verificationDataBatchIndex","type":"uint256"}],"name":"verifyBatchInclusion","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
000000000000000000000000055733000064333caddbc92763c58bf0192ffebf000000000000000000000000acc1fb458a1317e886db376fc8141540537e68fe0000000000000000000000003ad77134c986193c9ef98e55e800b71e72835b6200000000000000000000000051462d5511563a0f97bb3ce5475e1c3905b83f4b
-----Decoded View---------------
Arg [0] : __avsDirectory (address): 0x055733000064333CaDDbC92763c58BF0192fFeBf
Arg [1] : __rewardsCoordinator (address): 0xAcc1fb458a1317E886dB376Fc8141540537E68fE
Arg [2] : __registryCoordinator (address): 0x3aD77134c986193c9ef98e55e800B71e72835b62
Arg [3] : __stakeRegistry (address): 0x51462D5511563A0F97Bb3Ce5475E1c3905b83F4b
-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 000000000000000000000000055733000064333caddbc92763c58bf0192ffebf
Arg [1] : 000000000000000000000000acc1fb458a1317e886db376fc8141540537e68fe
Arg [2] : 0000000000000000000000003ad77134c986193c9ef98e55e800b71e72835b62
Arg [3] : 00000000000000000000000051462d5511563a0f97bb3ce5475e1c3905b83f4b
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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.