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Similar Match Source Code This contract matches the deployed Bytecode of the Source Code for Contract 0x8D45c008...315409F2f The constructor portion of the code might be different and could alter the actual behaviour of the contract
Contract Name:
BLSApkRegistry
Compiler Version
v0.8.12+commit.f00d7308
Optimization Enabled:
Yes with 200 runs
Other Settings:
london EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: BUSL-1.1 pragma solidity =0.8.12; import {BLSApkRegistryStorage} from "./BLSApkRegistryStorage.sol"; import {IRegistryCoordinator} from "./interfaces/IRegistryCoordinator.sol"; import {BN254} from "./libraries/BN254.sol"; contract BLSApkRegistry is BLSApkRegistryStorage { using BN254 for BN254.G1Point; /// @notice when applied to a function, only allows the RegistryCoordinator to call it modifier onlyRegistryCoordinator() { require( msg.sender == address(registryCoordinator), "BLSApkRegistry.onlyRegistryCoordinator: caller is not the registry coordinator" ); _; } /// @notice Sets the (immutable) `registryCoordinator` address constructor( IRegistryCoordinator _registryCoordinator ) BLSApkRegistryStorage(_registryCoordinator) {} /******************************************************************************* EXTERNAL FUNCTIONS - REGISTRY COORDINATOR *******************************************************************************/ /** * @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 memory quorumNumbers ) public virtual onlyRegistryCoordinator { // Get the operator's pubkey. Reverts if they have not registered a key (BN254.G1Point memory pubkey, ) = getRegisteredPubkey(operator); // Update each quorum's aggregate pubkey _processQuorumApkUpdate(quorumNumbers, pubkey); // Return pubkeyHash, which will become the operator's unique id emit OperatorAddedToQuorums(operator, getOperatorId(operator), quorumNumbers); } /** * @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 memory quorumNumbers ) public virtual onlyRegistryCoordinator { // Get the operator's pubkey. Reverts if they have not registered a key (BN254.G1Point memory pubkey, ) = getRegisteredPubkey(operator); // Update each quorum's aggregate pubkey _processQuorumApkUpdate(quorumNumbers, pubkey.negate()); emit OperatorRemovedFromQuorums(operator, getOperatorId(operator), quorumNumbers); } /** * @notice Initializes a new quorum by pushing its first apk update * @param quorumNumber The number of the new quorum */ function initializeQuorum(uint8 quorumNumber) public virtual onlyRegistryCoordinator { require(apkHistory[quorumNumber].length == 0, "BLSApkRegistry.initializeQuorum: quorum already exists"); apkHistory[quorumNumber].push(ApkUpdate({ apkHash: bytes24(0), updateBlockNumber: uint32(block.number), nextUpdateBlockNumber: 0 })); } /** * @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 onlyRegistryCoordinator returns (bytes32 operatorId) { bytes32 pubkeyHash = BN254.hashG1Point(params.pubkeyG1); require( pubkeyHash != ZERO_PK_HASH, "BLSApkRegistry.registerBLSPublicKey: cannot register zero pubkey" ); require( operatorToPubkeyHash[operator] == bytes32(0), "BLSApkRegistry.registerBLSPublicKey: operator already registered pubkey" ); require( pubkeyHashToOperator[pubkeyHash] == address(0), "BLSApkRegistry.registerBLSPublicKey: public key already registered" ); // gamma = h(sigma, P, P', H(m)) uint256 gamma = uint256(keccak256(abi.encodePacked( params.pubkeyRegistrationSignature.X, params.pubkeyRegistrationSignature.Y, params.pubkeyG1.X, params.pubkeyG1.Y, params.pubkeyG2.X, params.pubkeyG2.Y, pubkeyRegistrationMessageHash.X, pubkeyRegistrationMessageHash.Y ))) % BN254.FR_MODULUS; // e(sigma + P * gamma, [-1]_2) = e(H(m) + [1]_1 * gamma, P') require(BN254.pairing( params.pubkeyRegistrationSignature.plus(params.pubkeyG1.scalar_mul(gamma)), BN254.negGeneratorG2(), pubkeyRegistrationMessageHash.plus(BN254.generatorG1().scalar_mul(gamma)), params.pubkeyG2 ), "BLSApkRegistry.registerBLSPublicKey: either the G1 signature is wrong, or G1 and G2 private key do not match"); operatorToPubkey[operator] = params.pubkeyG1; operatorToPubkeyHash[operator] = pubkeyHash; pubkeyHashToOperator[pubkeyHash] = operator; emit NewPubkeyRegistration(operator, params.pubkeyG1, params.pubkeyG2); return pubkeyHash; } /******************************************************************************* INTERNAL FUNCTIONS *******************************************************************************/ function _processQuorumApkUpdate(bytes memory quorumNumbers, BN254.G1Point memory point) internal { BN254.G1Point memory newApk; for (uint256 i = 0; i < quorumNumbers.length; i++) { // Validate quorum exists and get history length uint8 quorumNumber = uint8(quorumNumbers[i]); uint256 historyLength = apkHistory[quorumNumber].length; require(historyLength != 0, "BLSApkRegistry._processQuorumApkUpdate: quorum does not exist"); // Update aggregate public key for this quorum newApk = currentApk[quorumNumber].plus(point); currentApk[quorumNumber] = newApk; bytes24 newApkHash = bytes24(BN254.hashG1Point(newApk)); // Update apk history. If the last update was made in this block, update the entry // Otherwise, push a new historical entry and update the prev->next pointer ApkUpdate storage lastUpdate = apkHistory[quorumNumber][historyLength - 1]; if (lastUpdate.updateBlockNumber == uint32(block.number)) { lastUpdate.apkHash = newApkHash; } else { lastUpdate.nextUpdateBlockNumber = uint32(block.number); apkHistory[quorumNumber].push(ApkUpdate({ apkHash: newApkHash, updateBlockNumber: uint32(block.number), nextUpdateBlockNumber: 0 })); } } } /******************************************************************************* VIEW FUNCTIONS *******************************************************************************/ /** * @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) public view returns (BN254.G1Point memory, bytes32) { BN254.G1Point memory pubkey = operatorToPubkey[operator]; bytes32 pubkeyHash = operatorToPubkeyHash[operator]; require( pubkeyHash != bytes32(0), "BLSApkRegistry.getRegisteredPubkey: operator is not registered" ); return (pubkey, pubkeyHash); } /** * @notice Returns the indices of the quorumApks index at `blockNumber` for the provided `quorumNumbers` * @dev Returns the current indices if `blockNumber >= block.number` */ function getApkIndicesAtBlockNumber( bytes calldata quorumNumbers, uint256 blockNumber ) external view returns (uint32[] memory) { uint32[] memory indices = new uint32[](quorumNumbers.length); for (uint256 i = 0; i < quorumNumbers.length; i++) { uint8 quorumNumber = uint8(quorumNumbers[i]); uint256 quorumApkUpdatesLength = apkHistory[quorumNumber].length; if (quorumApkUpdatesLength == 0 || blockNumber < apkHistory[quorumNumber][0].updateBlockNumber) { revert("BLSApkRegistry.getApkIndicesAtBlockNumber: blockNumber is before the first update"); } // Loop backward through apkHistory until we find an entry that preceeds `blockNumber` for (uint256 j = quorumApkUpdatesLength; j > 0; j--) { if (apkHistory[quorumNumber][j - 1].updateBlockNumber <= blockNumber) { indices[i] = uint32(j - 1); break; } } } return indices; } /// @notice Returns the current APK for the provided `quorumNumber ` function getApk(uint8 quorumNumber) external view returns (BN254.G1Point memory) { return currentApk[quorumNumber]; } /// @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) { return apkHistory[quorumNumber][index]; } /** * @notice get 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) { ApkUpdate memory quorumApkUpdate = apkHistory[quorumNumber][index]; /** * Validate that the update is valid for the given blockNumber: * - blockNumber should be >= the update block number * - the next update block number should be either 0 or strictly greater than blockNumber */ require( blockNumber >= quorumApkUpdate.updateBlockNumber, "BLSApkRegistry._validateApkHashAtBlockNumber: index too recent" ); require( quorumApkUpdate.nextUpdateBlockNumber == 0 || blockNumber < quorumApkUpdate.nextUpdateBlockNumber, "BLSApkRegistry._validateApkHashAtBlockNumber: not latest apk update" ); return quorumApkUpdate.apkHash; } /// @notice Returns the length of ApkUpdates for the provided `quorumNumber` function getApkHistoryLength(uint8 quorumNumber) external view returns (uint32) { return uint32(apkHistory[quorumNumber].length); } /// @notice Returns the operator address for the given `pubkeyHash` function getOperatorFromPubkeyHash(bytes32 pubkeyHash) public view returns (address) { return pubkeyHashToOperator[pubkeyHash]; } /// @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) public view returns (bytes32) { return operatorToPubkeyHash[operator]; } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity =0.8.12; import {IBLSApkRegistry} from "./interfaces/IBLSApkRegistry.sol"; import {IRegistryCoordinator} from "./interfaces/IRegistryCoordinator.sol"; import {Initializable} from "@openzeppelin-upgrades/contracts/proxy/utils/Initializable.sol"; import {BN254} from "./libraries/BN254.sol"; abstract contract BLSApkRegistryStorage is Initializable, IBLSApkRegistry { /// @notice the hash of the zero pubkey aka BN254.G1Point(0,0) bytes32 internal constant ZERO_PK_HASH = hex"ad3228b676f7d3cd4284a5443f17f1962b36e491b30a40b2405849e597ba5fb5"; /// @notice the registry coordinator contract address public immutable registryCoordinator; // storage for individual pubkeys /// @notice maps operator address to pubkey hash mapping(address => bytes32) public operatorToPubkeyHash; /// @notice maps pubkey hash to operator address mapping(bytes32 => address) public pubkeyHashToOperator; /// @notice maps operator address to pubkeyG1 mapping(address => BN254.G1Point) public operatorToPubkey; // storage for aggregate pubkeys (APKs) /// @notice maps quorumNumber => historical aggregate pubkey updates mapping(uint8 => ApkUpdate[]) public apkHistory; /// @notice maps quorumNumber => current aggregate pubkey of quorum mapping(uint8 => BN254.G1Point) public currentApk; constructor(IRegistryCoordinator _registryCoordinator) { registryCoordinator = address(_registryCoordinator); // disable initializers so that the implementation contract cannot be initialized _disableInitializers(); } // storage gap for upgradeability uint256[45] 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: 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"; 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 // 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 =0.8.12; 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: 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; /** * @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 v4.7.0) (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 "./IStrategy.sol"; import "./ISignatureUtils.sol"; import "./IStrategyManager.sol"; /** * @title DelegationManager * @author Layr Labs, Inc. * @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service * @notice This is the contract for delegation in EigenLayer. The main functionalities of this contract are * - enabling anyone to register as an operator in EigenLayer * - allowing operators to specify parameters related to stakers who delegate to them * - enabling any staker to delegate its stake to the operator of its choice (a given staker can only delegate to a single operator at a time) * - enabling a staker to undelegate its assets from the operator it is delegated to (performed as part of the withdrawal process, initiated through the StrategyManager) */ interface IDelegationManager is ISignatureUtils { // @notice Struct used for storing information about a single operator who has registered with EigenLayer struct OperatorDetails { // @notice address to receive the rewards that the operator earns via serving applications built on EigenLayer. address earningsReceiver; /** * @notice Address to verify signatures when a staker wishes to delegate to the operator, as well as controlling "forced undelegations". * @dev Signature verification follows these rules: * 1) If this address is left as address(0), then any staker will be free to delegate to the operator, i.e. no signature verification will be performed. * 2) If this address is an EOA (i.e. it has no code), then we follow standard ECDSA signature verification for delegations to the operator. * 3) If this address is a contract (i.e. it has code) then we forward a call to the contract and verify that it returns the correct EIP-1271 "magic value". */ address delegationApprover; /** * @notice A minimum delay -- measured in blocks -- enforced between: * 1) the operator signalling their intent to register for a service, via calling `Slasher.optIntoSlashing` * and * 2) the operator completing registration for the service, via the service ultimately calling `Slasher.recordFirstStakeUpdate` * @dev note that for a specific operator, this value *cannot decrease*, i.e. if the operator wishes to modify their OperatorDetails, * then they are only allowed to either increase this value or keep it the same. */ uint32 stakerOptOutWindowBlocks; } /** * @notice Abstract struct used in calculating an EIP712 signature for a staker to approve that they (the staker themselves) delegate to a specific operator. * @dev Used in computing the `STAKER_DELEGATION_TYPEHASH` and as a reference in the computation of the stakerDigestHash in the `delegateToBySignature` function. */ struct StakerDelegation { // the staker who is delegating address staker; // the operator being delegated to address operator; // the staker's nonce uint256 nonce; // the expiration timestamp (UTC) of the signature uint256 expiry; } /** * @notice Abstract struct used in calculating an EIP712 signature for an operator's delegationApprover to approve that a specific staker delegate to the operator. * @dev Used in computing the `DELEGATION_APPROVAL_TYPEHASH` and as a reference in the computation of the approverDigestHash in the `_delegate` function. */ struct DelegationApproval { // the staker who is delegating address staker; // the operator being delegated to address operator; // the operator's provided salt bytes32 salt; // the expiration timestamp (UTC) of the signature uint256 expiry; } /** * Struct type used to specify an existing queued withdrawal. Rather than storing the entire struct, only a hash is stored. * In functions that operate on existing queued withdrawals -- e.g. completeQueuedWithdrawal`, the data is resubmitted and the hash of the submitted * data is computed by `calculateWithdrawalRoot` and checked against the stored hash in order to confirm the integrity of the submitted data. */ struct Withdrawal { // The address that originated the Withdrawal address staker; // The address that the staker was delegated to at the time that the Withdrawal was created address delegatedTo; // The address that can complete the Withdrawal + will receive funds when completing the withdrawal address withdrawer; // Nonce used to guarantee that otherwise identical withdrawals have unique hashes uint256 nonce; // Block number when the Withdrawal was created uint32 startBlock; // Array of strategies that the Withdrawal contains IStrategy[] strategies; // Array containing the amount of shares in each Strategy in the `strategies` array uint256[] shares; } struct QueuedWithdrawalParams { // Array of strategies that the QueuedWithdrawal contains IStrategy[] strategies; // Array containing the amount of shares in each Strategy in the `strategies` array uint256[] shares; // The address of the withdrawer address withdrawer; } // @notice Emitted when a new operator registers in EigenLayer and provides their OperatorDetails. event OperatorRegistered(address indexed operator, OperatorDetails operatorDetails); /// @notice Emitted when an operator updates their OperatorDetails to @param newOperatorDetails event OperatorDetailsModified(address indexed operator, OperatorDetails newOperatorDetails); /** * @notice Emitted when @param operator indicates that they are updating their MetadataURI string * @dev Note that these strings are *never stored in storage* and are instead purely emitted in events for off-chain indexing */ event OperatorMetadataURIUpdated(address indexed operator, string metadataURI); /// @notice Emitted whenever an operator's shares are increased for a given strategy. Note that shares is the delta in the operator's shares. event OperatorSharesIncreased(address indexed operator, address staker, IStrategy strategy, uint256 shares); /// @notice Emitted whenever an operator's shares are decreased for a given strategy. Note that shares is the delta in the operator's shares. event OperatorSharesDecreased(address indexed operator, address staker, IStrategy strategy, uint256 shares); /// @notice Emitted when @param staker delegates to @param operator. event StakerDelegated(address indexed staker, address indexed operator); /// @notice Emitted when @param staker undelegates from @param operator. event StakerUndelegated(address indexed staker, address indexed operator); /// @notice Emitted when @param staker is undelegated via a call not originating from the staker themself event StakerForceUndelegated(address indexed staker, address indexed operator); /** * @notice Emitted when a new withdrawal is queued. * @param withdrawalRoot Is the hash of the `withdrawal`. * @param withdrawal Is the withdrawal itself. */ event WithdrawalQueued(bytes32 withdrawalRoot, Withdrawal withdrawal); /// @notice Emitted when a queued withdrawal is completed event WithdrawalCompleted(bytes32 withdrawalRoot); /// @notice Emitted when a queued withdrawal is *migrated* from the StrategyManager to the DelegationManager event WithdrawalMigrated(bytes32 oldWithdrawalRoot, bytes32 newWithdrawalRoot); /// @notice Emitted when the `minWithdrawalDelayBlocks` variable is modified from `previousValue` to `newValue`. event MinWithdrawalDelayBlocksSet(uint256 previousValue, uint256 newValue); /// @notice Emitted when the `strategyWithdrawalDelayBlocks` variable is modified from `previousValue` to `newValue`. event StrategyWithdrawalDelayBlocksSet(IStrategy strategy, uint256 previousValue, uint256 newValue); /** * @notice Registers the caller as an operator in EigenLayer. * @param registeringOperatorDetails is the `OperatorDetails` for the operator. * @param metadataURI is a URI for the operator's metadata, i.e. a link providing more details on the operator. * * @dev Once an operator is registered, they cannot 'deregister' as an operator, and they will forever be considered "delegated to themself". * @dev This function will revert if the caller attempts to set their `earningsReceiver` to address(0). * @dev Note that the `metadataURI` is *never stored * and is only emitted in the `OperatorMetadataURIUpdated` event */ function registerAsOperator( OperatorDetails calldata registeringOperatorDetails, string calldata metadataURI ) external; /** * @notice Updates an operator's stored `OperatorDetails`. * @param newOperatorDetails is the updated `OperatorDetails` for the operator, to replace their current OperatorDetails`. * * @dev The caller must have previously registered as an operator in EigenLayer. * @dev This function will revert if the caller attempts to set their `earningsReceiver` to address(0). */ function modifyOperatorDetails(OperatorDetails calldata newOperatorDetails) external; /** * @notice Called by an operator to emit an `OperatorMetadataURIUpdated` event indicating the information has updated. * @param metadataURI The URI for metadata associated with an operator * @dev Note that the `metadataURI` is *never stored * and is only emitted in the `OperatorMetadataURIUpdated` event */ function updateOperatorMetadataURI(string calldata metadataURI) external; /** * @notice Caller delegates their stake to an operator. * @param operator The account (`msg.sender`) is delegating its assets to for use in serving applications built on EigenLayer. * @param approverSignatureAndExpiry Verifies the operator approves of this delegation * @param approverSalt A unique single use value tied to an individual signature. * @dev The approverSignatureAndExpiry is used in the event that: * 1) the operator's `delegationApprover` address is set to a non-zero value. * AND * 2) neither the operator nor their `delegationApprover` is the `msg.sender`, since in the event that the operator * or their delegationApprover is the `msg.sender`, then approval is assumed. * @dev In the event that `approverSignatureAndExpiry` is not checked, its content is ignored entirely; it's recommended to use an empty input * in this case to save on complexity + gas costs */ function delegateTo( address operator, SignatureWithExpiry memory approverSignatureAndExpiry, bytes32 approverSalt ) external; /** * @notice Caller delegates a staker's stake to an operator with valid signatures from both parties. * @param staker The account delegating stake to an `operator` account * @param operator The account (`staker`) is delegating its assets to for use in serving applications built on EigenLayer. * @param stakerSignatureAndExpiry Signed data from the staker authorizing delegating stake to an operator * @param approverSignatureAndExpiry is a parameter that will be used for verifying that the operator approves of this delegation action in the event that: * @param approverSalt Is a salt used to help guarantee signature uniqueness. Each salt can only be used once by a given approver. * * @dev If `staker` is an EOA, then `stakerSignature` is verified to be a valid ECDSA stakerSignature from `staker`, indicating their intention for this action. * @dev If `staker` is a contract, then `stakerSignature` will be checked according to EIP-1271. * @dev the operator's `delegationApprover` address is set to a non-zero value. * @dev neither the operator nor their `delegationApprover` is the `msg.sender`, since in the event that the operator or their delegationApprover * is the `msg.sender`, then approval is assumed. * @dev This function will revert if the current `block.timestamp` is equal to or exceeds the expiry * @dev In the case that `approverSignatureAndExpiry` is not checked, its content is ignored entirely; it's recommended to use an empty input * in this case to save on complexity + gas costs */ function delegateToBySignature( address staker, address operator, SignatureWithExpiry memory stakerSignatureAndExpiry, SignatureWithExpiry memory approverSignatureAndExpiry, bytes32 approverSalt ) external; /** * @notice Undelegates the staker from the operator who they are delegated to. Puts the staker into the "undelegation limbo" mode of the EigenPodManager * and queues a withdrawal of all of the staker's shares in the StrategyManager (to the staker), if necessary. * @param staker The account to be undelegated. * @return withdrawalRoot The root of the newly queued withdrawal, if a withdrawal was queued. Otherwise just bytes32(0). * * @dev Reverts if the `staker` is also an operator, since operators are not allowed to undelegate from themselves. * @dev Reverts if the caller is not the staker, nor the operator who the staker is delegated to, nor the operator's specified "delegationApprover" * @dev Reverts if the `staker` is already undelegated. */ function undelegate(address staker) external returns (bytes32[] memory withdrawalRoot); /** * Allows a staker to withdraw some shares. Withdrawn shares/strategies are immediately removed * from the staker. If the staker is delegated, withdrawn shares/strategies are also removed from * their operator. * * All withdrawn shares/strategies are placed in a queue and can be fully withdrawn after a delay. */ function queueWithdrawals( QueuedWithdrawalParams[] calldata queuedWithdrawalParams ) external returns (bytes32[] memory); /** * @notice Used to complete the specified `withdrawal`. The caller must match `withdrawal.withdrawer` * @param withdrawal The Withdrawal to complete. * @param tokens Array in which the i-th entry specifies the `token` input to the 'withdraw' function of the i-th Strategy in the `withdrawal.strategies` array. * This input can be provided with zero length if `receiveAsTokens` is set to 'false' (since in that case, this input will be unused) * @param middlewareTimesIndex is the index in the operator that the staker who triggered the withdrawal was delegated to's middleware times array * @param receiveAsTokens If true, the shares specified in the withdrawal will be withdrawn from the specified strategies themselves * and sent to the caller, through calls to `withdrawal.strategies[i].withdraw`. If false, then the shares in the specified strategies * will simply be transferred to the caller directly. * @dev middlewareTimesIndex should be calculated off chain before calling this function by finding the first index that satisfies `slasher.canWithdraw` * @dev beaconChainETHStrategy shares are non-transferrable, so if `receiveAsTokens = false` and `withdrawal.withdrawer != withdrawal.staker`, note that * any beaconChainETHStrategy shares in the `withdrawal` will be _returned to the staker_, rather than transferred to the withdrawer, unlike shares in * any other strategies, which will be transferred to the withdrawer. */ function completeQueuedWithdrawal( Withdrawal calldata withdrawal, IERC20[] calldata tokens, uint256 middlewareTimesIndex, bool receiveAsTokens ) external; /** * @notice Array-ified version of `completeQueuedWithdrawal`. * Used to complete the specified `withdrawals`. The function caller must match `withdrawals[...].withdrawer` * @param withdrawals The Withdrawals to complete. * @param tokens Array of tokens for each Withdrawal. See `completeQueuedWithdrawal` for the usage of a single array. * @param middlewareTimesIndexes One index to reference per Withdrawal. See `completeQueuedWithdrawal` for the usage of a single index. * @param receiveAsTokens Whether or not to complete each withdrawal as tokens. See `completeQueuedWithdrawal` for the usage of a single boolean. * @dev See `completeQueuedWithdrawal` for relevant dev tags */ function completeQueuedWithdrawals( Withdrawal[] calldata withdrawals, IERC20[][] calldata tokens, uint256[] calldata middlewareTimesIndexes, bool[] calldata receiveAsTokens ) external; /** * @notice Increases a staker's delegated share balance in a strategy. * @param staker The address to increase the delegated shares for their operator. * @param strategy The strategy in which to increase the delegated shares. * @param shares The number of shares to increase. * * @dev *If the staker is actively delegated*, then increases the `staker`'s delegated shares in `strategy` by `shares`. Otherwise does nothing. * @dev Callable only by the StrategyManager or EigenPodManager. */ function increaseDelegatedShares( address staker, IStrategy strategy, uint256 shares ) external; /** * @notice Decreases a staker's delegated share balance in a strategy. * @param staker The address to increase the delegated shares for their operator. * @param strategy The strategy in which to decrease the delegated shares. * @param shares The number of shares to decrease. * * @dev *If the staker is actively delegated*, then decreases the `staker`'s delegated shares in `strategy` by `shares`. Otherwise does nothing. * @dev Callable only by the StrategyManager or EigenPodManager. */ function decreaseDelegatedShares( address staker, IStrategy strategy, uint256 shares ) external; /** * @notice returns the address of the operator that `staker` is delegated to. * @notice Mapping: staker => operator whom the staker is currently delegated to. * @dev Note that returning address(0) indicates that the staker is not actively delegated to any operator. */ function delegatedTo(address staker) external view returns (address); /** * @notice Returns the OperatorDetails struct associated with an `operator`. */ function operatorDetails(address operator) external view returns (OperatorDetails memory); /* * @notice Returns the earnings receiver address for an operator */ function earningsReceiver(address operator) external view returns (address); /** * @notice Returns the delegationApprover account for an operator */ function delegationApprover(address operator) external view returns (address); /** * @notice Returns the stakerOptOutWindowBlocks for an operator */ function stakerOptOutWindowBlocks(address operator) external view returns (uint256); /** * @notice Given array of strategies, returns array of shares for the operator */ function getOperatorShares( address operator, IStrategy[] memory strategies ) external view returns (uint256[] memory); /** * @notice Given a list of strategies, return the minimum number of blocks that must pass to withdraw * from all the inputted strategies. Return value is >= minWithdrawalDelayBlocks as this is the global min withdrawal delay. * @param strategies The strategies to check withdrawal delays for */ function getWithdrawalDelay(IStrategy[] calldata strategies) external view returns (uint256); /** * @notice returns the total number of shares in `strategy` that are delegated to `operator`. * @notice Mapping: operator => strategy => total number of shares in the strategy delegated to the operator. * @dev By design, the following invariant should hold for each Strategy: * (operator's shares in delegation manager) = sum (shares above zero of all stakers delegated to operator) * = sum (delegateable shares of all stakers delegated to the operator) */ function operatorShares(address operator, IStrategy strategy) external view returns (uint256); /** * @notice Returns 'true' if `staker` *is* actively delegated, and 'false' otherwise. */ function isDelegated(address staker) external view returns (bool); /** * @notice Returns true is an operator has previously registered for delegation. */ function isOperator(address operator) external view returns (bool); /// @notice Mapping: staker => number of signed delegation nonces (used in `delegateToBySignature`) from the staker that the contract has already checked function stakerNonce(address staker) external view returns (uint256); /** * @notice Mapping: delegationApprover => 32-byte salt => whether or not the salt has already been used by the delegationApprover. * @dev Salts are used in the `delegateTo` and `delegateToBySignature` functions. Note that these functions only process the delegationApprover's * signature + the provided salt if the operator being delegated to has specified a nonzero address as their `delegationApprover`. */ function delegationApproverSaltIsSpent(address _delegationApprover, bytes32 salt) external view returns (bool); /** * @notice Minimum delay enforced by this contract for completing queued withdrawals. Measured in blocks, and adjustable by this contract's owner, * up to a maximum of `MAX_WITHDRAWAL_DELAY_BLOCKS`. Minimum value is 0 (i.e. no delay enforced). * Note that strategies each have a separate withdrawal delay, which can be greater than this value. So the minimum number of blocks that must pass * to withdraw a strategy is MAX(minWithdrawalDelayBlocks, strategyWithdrawalDelayBlocks[strategy]) */ function minWithdrawalDelayBlocks() external view returns (uint256); /** * @notice Minimum delay enforced by this contract per Strategy for completing queued withdrawals. Measured in blocks, and adjustable by this contract's owner, * up to a maximum of `MAX_WITHDRAWAL_DELAY_BLOCKS`. Minimum value is 0 (i.e. no delay enforced). */ function strategyWithdrawalDelayBlocks(IStrategy strategy) external view returns (uint256); /** * @notice Calculates the digestHash for a `staker` to sign to delegate to an `operator` * @param staker The signing staker * @param operator The operator who is being delegated to * @param expiry The desired expiry time of the staker's signature */ function calculateCurrentStakerDelegationDigestHash( address staker, address operator, uint256 expiry ) external view returns (bytes32); /** * @notice Calculates the digest hash to be signed and used in the `delegateToBySignature` function * @param staker The signing staker * @param _stakerNonce The nonce of the staker. In practice we use the staker's current nonce, stored at `stakerNonce[staker]` * @param operator The operator who is being delegated to * @param expiry The desired expiry time of the staker's signature */ function calculateStakerDelegationDigestHash( address staker, uint256 _stakerNonce, address operator, uint256 expiry ) external view returns (bytes32); /** * @notice Calculates the digest hash to be signed by the operator's delegationApprove and used in the `delegateTo` and `delegateToBySignature` functions. * @param staker The account delegating their stake * @param operator The account receiving delegated stake * @param _delegationApprover the operator's `delegationApprover` who will be signing the delegationHash (in general) * @param approverSalt A unique and single use value associated with the approver signature. * @param expiry Time after which the approver's signature becomes invalid */ function calculateDelegationApprovalDigestHash( address staker, address operator, address _delegationApprover, bytes32 approverSalt, uint256 expiry ) external view returns (bytes32); /// @notice The EIP-712 typehash for the contract's domain function DOMAIN_TYPEHASH() external view returns (bytes32); /// @notice The EIP-712 typehash for the StakerDelegation struct used by the contract function STAKER_DELEGATION_TYPEHASH() external view returns (bytes32); /// @notice The EIP-712 typehash for the DelegationApproval struct used by the contract function DELEGATION_APPROVAL_TYPEHASH() external view returns (bytes32); /** * @notice Getter function for the current EIP-712 domain separator for this contract. * * @dev The domain separator will change in the event of a fork that changes the ChainID. * @dev By introducing a domain separator the DApp developers are guaranteed that there can be no signature collision. * for more detailed information please read EIP-712. */ function domainSeparator() external view returns (bytes32); /// @notice Mapping: staker => cumulative number of queued withdrawals they have ever initiated. /// @dev This only increments (doesn't decrement), and is used to help ensure that otherwise identical withdrawals have unique hashes. function cumulativeWithdrawalsQueued(address staker) external view returns (uint256); /// @notice Returns the keccak256 hash of `withdrawal`. function calculateWithdrawalRoot(Withdrawal memory withdrawal) external pure returns (bytes32); function migrateQueuedWithdrawals(IStrategyManager.DeprecatedStruct_QueuedWithdrawal[] memory withdrawalsToQueue) external; }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity >=0.5.0; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; /** * @title Minimal interface for an `Strategy` contract. * @author Layr Labs, Inc. * @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service * @notice Custom `Strategy` implementations may expand extensively on this interface. */ interface IStrategy { /** * @notice Used to deposit tokens into this Strategy * @param token is the ERC20 token being deposited * @param amount is the amount of token being deposited * @dev This function is only callable by the strategyManager contract. It is invoked inside of the strategyManager's * `depositIntoStrategy` function, and individual share balances are recorded in the strategyManager as well. * @return newShares is the number of new shares issued at the current exchange ratio. */ function deposit(IERC20 token, uint256 amount) external returns (uint256); /** * @notice Used to withdraw tokens from this Strategy, to the `recipient`'s address * @param recipient is the address to receive the withdrawn funds * @param token is the ERC20 token being transferred out * @param amountShares is the amount of shares being withdrawn * @dev This function is only callable by the strategyManager contract. It is invoked inside of the strategyManager's * other functions, and individual share balances are recorded in the strategyManager as well. */ function withdraw(address recipient, IERC20 token, uint256 amountShares) external; /** * @notice Used to convert a number of shares to the equivalent amount of underlying tokens for this strategy. * @notice In contrast to `sharesToUnderlyingView`, this function **may** make state modifications * @param amountShares is the amount of shares to calculate its conversion into the underlying token * @return The amount of underlying tokens corresponding to the input `amountShares` * @dev Implementation for these functions in particular may vary significantly for different strategies */ function sharesToUnderlying(uint256 amountShares) external returns (uint256); /** * @notice Used to convert an amount of underlying tokens to the equivalent amount of shares in this strategy. * @notice In contrast to `underlyingToSharesView`, this function **may** make state modifications * @param amountUnderlying is the amount of `underlyingToken` to calculate its conversion into strategy shares * @return The amount of underlying tokens corresponding to the input `amountShares` * @dev Implementation for these functions in particular may vary significantly for different strategies */ function underlyingToShares(uint256 amountUnderlying) external returns (uint256); /** * @notice convenience function for fetching the current underlying value of all of the `user`'s shares in * this strategy. In contrast to `userUnderlyingView`, this function **may** make state modifications */ function userUnderlying(address user) external returns (uint256); /** * @notice convenience function for fetching the current total shares of `user` in this strategy, by * querying the `strategyManager` contract */ function shares(address user) external view returns (uint256); /** * @notice Used to convert a number of shares to the equivalent amount of underlying tokens for this strategy. * @notice In contrast to `sharesToUnderlying`, this function guarantees no state modifications * @param amountShares is the amount of shares to calculate its conversion into the underlying token * @return The amount of shares corresponding to the input `amountUnderlying` * @dev Implementation for these functions in particular may vary significantly for different strategies */ function sharesToUnderlyingView(uint256 amountShares) external view returns (uint256); /** * @notice Used to convert an amount of underlying tokens to the equivalent amount of shares in this strategy. * @notice In contrast to `underlyingToShares`, this function guarantees no state modifications * @param amountUnderlying is the amount of `underlyingToken` to calculate its conversion into strategy shares * @return The amount of shares corresponding to the input `amountUnderlying` * @dev Implementation for these functions in particular may vary significantly for different strategies */ function underlyingToSharesView(uint256 amountUnderlying) external view returns (uint256); /** * @notice convenience function for fetching the current underlying value of all of the `user`'s shares in * this strategy. In contrast to `userUnderlying`, this function guarantees no state modifications */ function userUnderlyingView(address user) external view returns (uint256); /// @notice The underlying token for shares in this Strategy function underlyingToken() external view returns (IERC20); /// @notice The total number of extant shares in this Strategy function totalShares() external view returns (uint256); /// @notice Returns either a brief string explaining the strategy's goal & purpose, or a link to metadata that explains in more detail. function explanation() external view returns (string memory); }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity >=0.5.0; /** * @title The interface for common signature utilities. * @author Layr Labs, Inc. * @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service */ interface ISignatureUtils { // @notice Struct that bundles together a signature and an expiration time for the signature. Used primarily for stack management. struct SignatureWithExpiry { // the signature itself, formatted as a single bytes object bytes signature; // the expiration timestamp (UTC) of the signature uint256 expiry; } // @notice Struct that bundles together a signature, a salt for uniqueness, and an expiration time for the signature. Used primarily for stack management. struct SignatureWithSaltAndExpiry { // the signature itself, formatted as a single bytes object bytes signature; // the salt used to generate the signature bytes32 salt; // the expiration timestamp (UTC) of the signature uint256 expiry; } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity >=0.5.0; import "./IStrategy.sol"; import "./ISlasher.sol"; import "./IDelegationManager.sol"; import "./IEigenPodManager.sol"; /** * @title Interface for the primary entrypoint for funds into EigenLayer. * @author Layr Labs, Inc. * @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service * @notice See the `StrategyManager` contract itself for implementation details. */ interface IStrategyManager { /** * @notice Emitted when a new deposit occurs on behalf of `staker`. * @param staker Is the staker who is depositing funds into EigenLayer. * @param strategy Is the strategy that `staker` has deposited into. * @param token Is the token that `staker` deposited. * @param shares Is the number of new shares `staker` has been granted in `strategy`. */ event Deposit(address staker, IERC20 token, IStrategy strategy, uint256 shares); /// @notice Emitted when `thirdPartyTransfersForbidden` is updated for a strategy and value by the owner event UpdatedThirdPartyTransfersForbidden(IStrategy strategy, bool value); /// @notice Emitted when the `strategyWhitelister` is changed event StrategyWhitelisterChanged(address previousAddress, address newAddress); /// @notice Emitted when a strategy is added to the approved list of strategies for deposit event StrategyAddedToDepositWhitelist(IStrategy strategy); /// @notice Emitted when a strategy is removed from the approved list of strategies for deposit event StrategyRemovedFromDepositWhitelist(IStrategy strategy); /** * @notice Deposits `amount` of `token` into the specified `strategy`, with the resultant shares credited to `msg.sender` * @param strategy is the specified strategy where deposit is to be made, * @param token is the denomination in which the deposit is to be made, * @param amount is the amount of token to be deposited in the strategy by the staker * @return shares The amount of new shares in the `strategy` created as part of the action. * @dev The `msg.sender` must have previously approved this contract to transfer at least `amount` of `token` on their behalf. * @dev Cannot be called by an address that is 'frozen' (this function will revert if the `msg.sender` is frozen). * * WARNING: Depositing tokens that allow reentrancy (eg. ERC-777) into a strategy is not recommended. This can lead to attack vectors * where the token balance and corresponding strategy shares are not in sync upon reentrancy. */ function depositIntoStrategy(IStrategy strategy, IERC20 token, uint256 amount) external returns (uint256 shares); /** * @notice Used for depositing an asset into the specified strategy with the resultant shares credited to `staker`, * who must sign off on the action. * Note that the assets are transferred out/from the `msg.sender`, not from the `staker`; this function is explicitly designed * purely to help one address deposit 'for' another. * @param strategy is the specified strategy where deposit is to be made, * @param token is the denomination in which the deposit is to be made, * @param amount is the amount of token to be deposited in the strategy by the staker * @param staker the staker that the deposited assets will be credited to * @param expiry the timestamp at which the signature expires * @param signature is a valid signature from the `staker`. either an ECDSA signature if the `staker` is an EOA, or data to forward * following EIP-1271 if the `staker` is a contract * @return shares The amount of new shares in the `strategy` created as part of the action. * @dev The `msg.sender` must have previously approved this contract to transfer at least `amount` of `token` on their behalf. * @dev A signature is required for this function to eliminate the possibility of griefing attacks, specifically those * targeting stakers who may be attempting to undelegate. * @dev Cannot be called if thirdPartyTransfersForbidden is set to true for this strategy * * WARNING: Depositing tokens that allow reentrancy (eg. ERC-777) into a strategy is not recommended. This can lead to attack vectors * where the token balance and corresponding strategy shares are not in sync upon reentrancy */ function depositIntoStrategyWithSignature( IStrategy strategy, IERC20 token, uint256 amount, address staker, uint256 expiry, bytes memory signature ) external returns (uint256 shares); /// @notice Used by the DelegationManager to remove a Staker's shares from a particular strategy when entering the withdrawal queue function removeShares(address staker, IStrategy strategy, uint256 shares) external; /// @notice Used by the DelegationManager to award a Staker some shares that have passed through the withdrawal queue function addShares(address staker, IERC20 token, IStrategy strategy, uint256 shares) external; /// @notice Used by the DelegationManager to convert withdrawn shares to tokens and send them to a recipient function withdrawSharesAsTokens(address recipient, IStrategy strategy, uint256 shares, IERC20 token) external; /// @notice Returns the current shares of `user` in `strategy` function stakerStrategyShares(address user, IStrategy strategy) external view returns (uint256 shares); /** * @notice Get all details on the staker's deposits and corresponding shares * @return (staker's strategies, shares in these strategies) */ function getDeposits(address staker) external view returns (IStrategy[] memory, uint256[] memory); /// @notice Simple getter function that returns `stakerStrategyList[staker].length`. function stakerStrategyListLength(address staker) external view returns (uint256); /** * @notice Owner-only function that adds the provided Strategies to the 'whitelist' of strategies that stakers can deposit into * @param strategiesToWhitelist Strategies that will be added to the `strategyIsWhitelistedForDeposit` mapping (if they aren't in it already) * @param thirdPartyTransfersForbiddenValues bool values to set `thirdPartyTransfersForbidden` to for each strategy */ function addStrategiesToDepositWhitelist( IStrategy[] calldata strategiesToWhitelist, bool[] calldata thirdPartyTransfersForbiddenValues ) external; /** * @notice Owner-only function that removes the provided Strategies from the 'whitelist' of strategies that stakers can deposit into * @param strategiesToRemoveFromWhitelist Strategies that will be removed to the `strategyIsWhitelistedForDeposit` mapping (if they are in it) */ function removeStrategiesFromDepositWhitelist(IStrategy[] calldata strategiesToRemoveFromWhitelist) external; /// @notice Returns the single, central Delegation contract of EigenLayer function delegation() external view returns (IDelegationManager); /// @notice Returns the single, central Slasher contract of EigenLayer function slasher() external view returns (ISlasher); /// @notice Returns the EigenPodManager contract of EigenLayer function eigenPodManager() external view returns (IEigenPodManager); /// @notice Returns the address of the `strategyWhitelister` function strategyWhitelister() external view returns (address); /** * @notice Returns bool for whether or not `strategy` enables credit transfers. i.e enabling * depositIntoStrategyWithSignature calls or queueing withdrawals to a different address than the staker. */ function thirdPartyTransfersForbidden(IStrategy strategy) external view returns (bool); // LIMITED BACKWARDS-COMPATIBILITY FOR DEPRECATED FUNCTIONALITY // packed struct for queued withdrawals; helps deal with stack-too-deep errors struct DeprecatedStruct_WithdrawerAndNonce { address withdrawer; uint96 nonce; } /** * Struct type used to specify an existing queued withdrawal. Rather than storing the entire struct, only a hash is stored. * In functions that operate on existing queued withdrawals -- e.g. `startQueuedWithdrawalWaitingPeriod` or `completeQueuedWithdrawal`, * the data is resubmitted and the hash of the submitted data is computed by `calculateWithdrawalRoot` and checked against the * stored hash in order to confirm the integrity of the submitted data. */ struct DeprecatedStruct_QueuedWithdrawal { IStrategy[] strategies; uint256[] shares; address staker; DeprecatedStruct_WithdrawerAndNonce withdrawerAndNonce; uint32 withdrawalStartBlock; address delegatedAddress; } function migrateQueuedWithdrawal(DeprecatedStruct_QueuedWithdrawal memory queuedWithdrawal) external returns (bool, bytes32); function calculateWithdrawalRoot(DeprecatedStruct_QueuedWithdrawal memory queuedWithdrawal) external pure returns (bytes32); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `from` to `to` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 amount ) external returns (bool); }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity >=0.5.0; import "./IStrategyManager.sol"; import "./IDelegationManager.sol"; /** * @title Interface for the primary 'slashing' contract for EigenLayer. * @author Layr Labs, Inc. * @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service * @notice See the `Slasher` contract itself for implementation details. */ interface ISlasher { // struct used to store information about the current state of an operator's obligations to middlewares they are serving struct MiddlewareTimes { // The update block for the middleware whose most recent update was earliest, i.e. the 'stalest' update out of all middlewares the operator is serving uint32 stalestUpdateBlock; // The latest 'serveUntilBlock' from all of the middleware that the operator is serving uint32 latestServeUntilBlock; } // struct used to store details relevant to a single middleware that an operator has opted-in to serving struct MiddlewareDetails { // the block at which the contract begins being able to finalize the operator's registration with the service via calling `recordFirstStakeUpdate` uint32 registrationMayBeginAtBlock; // the block before which the contract is allowed to slash the user uint32 contractCanSlashOperatorUntilBlock; // the block at which the middleware's view of the operator's stake was most recently updated uint32 latestUpdateBlock; } /// @notice Emitted when a middleware times is added to `operator`'s array. event MiddlewareTimesAdded( address operator, uint256 index, uint32 stalestUpdateBlock, uint32 latestServeUntilBlock ); /// @notice Emitted when `operator` begins to allow `contractAddress` to slash them. event OptedIntoSlashing(address indexed operator, address indexed contractAddress); /// @notice Emitted when `contractAddress` signals that it will no longer be able to slash `operator` after the `contractCanSlashOperatorUntilBlock`. event SlashingAbilityRevoked( address indexed operator, address indexed contractAddress, uint32 contractCanSlashOperatorUntilBlock ); /** * @notice Emitted when `slashingContract` 'freezes' the `slashedOperator`. * @dev The `slashingContract` must have permission to slash the `slashedOperator`, i.e. `canSlash(slasherOperator, slashingContract)` must return 'true'. */ event OperatorFrozen(address indexed slashedOperator, address indexed slashingContract); /// @notice Emitted when `previouslySlashedAddress` is 'unfrozen', allowing them to again move deposited funds within EigenLayer. event FrozenStatusReset(address indexed previouslySlashedAddress); /** * @notice Gives the `contractAddress` permission to slash the funds of the caller. * @dev Typically, this function must be called prior to registering for a middleware. */ function optIntoSlashing(address contractAddress) external; /** * @notice Used for 'slashing' a certain operator. * @param toBeFrozen The operator to be frozen. * @dev Technically the operator is 'frozen' (hence the name of this function), and then subject to slashing pending a decision by a human-in-the-loop. * @dev The operator must have previously given the caller (which should be a contract) the ability to slash them, through a call to `optIntoSlashing`. */ function freezeOperator(address toBeFrozen) external; /** * @notice Removes the 'frozen' status from each of the `frozenAddresses` * @dev Callable only by the contract owner (i.e. governance). */ function resetFrozenStatus(address[] calldata frozenAddresses) external; /** * @notice this function is a called by middlewares during an operator's registration to make sure the operator's stake at registration * is slashable until serveUntil * @param operator the operator whose stake update is being recorded * @param serveUntilBlock the block until which the operator's stake at the current block is slashable * @dev adds the middleware's slashing contract to the operator's linked list */ function recordFirstStakeUpdate(address operator, uint32 serveUntilBlock) external; /** * @notice this function is a called by middlewares during a stake update for an operator (perhaps to free pending withdrawals) * to make sure the operator's stake at updateBlock is slashable until serveUntil * @param operator the operator whose stake update is being recorded * @param updateBlock the block for which the stake update is being recorded * @param serveUntilBlock the block until which the operator's stake at updateBlock is slashable * @param insertAfter the element of the operators linked list that the currently updating middleware should be inserted after * @dev insertAfter should be calculated offchain before making the transaction that calls this. this is subject to race conditions, * but it is anticipated to be rare and not detrimental. */ function recordStakeUpdate( address operator, uint32 updateBlock, uint32 serveUntilBlock, uint256 insertAfter ) external; /** * @notice this function is a called by middlewares during an operator's deregistration to make sure the operator's stake at deregistration * is slashable until serveUntil * @param operator the operator whose stake update is being recorded * @param serveUntilBlock the block until which the operator's stake at the current block is slashable * @dev removes the middleware's slashing contract to the operator's linked list and revokes the middleware's (i.e. caller's) ability to * slash `operator` once `serveUntil` is reached */ function recordLastStakeUpdateAndRevokeSlashingAbility(address operator, uint32 serveUntilBlock) external; /// @notice The StrategyManager contract of EigenLayer function strategyManager() external view returns (IStrategyManager); /// @notice The DelegationManager contract of EigenLayer function delegation() external view returns (IDelegationManager); /** * @notice Used to determine whether `staker` is actively 'frozen'. If a staker is frozen, then they are potentially subject to * slashing of their funds, and cannot cannot deposit or withdraw from the strategyManager until the slashing process is completed * and the staker's status is reset (to 'unfrozen'). * @param staker The staker of interest. * @return Returns 'true' if `staker` themselves has their status set to frozen, OR if the staker is delegated * to an operator who has their status set to frozen. Otherwise returns 'false'. */ function isFrozen(address staker) external view returns (bool); /// @notice Returns true if `slashingContract` is currently allowed to slash `toBeSlashed`. function canSlash(address toBeSlashed, address slashingContract) external view returns (bool); /// @notice Returns the block until which `serviceContract` is allowed to slash the `operator`. function contractCanSlashOperatorUntilBlock( address operator, address serviceContract ) external view returns (uint32); /// @notice Returns the block at which the `serviceContract` last updated its view of the `operator`'s stake function latestUpdateBlock(address operator, address serviceContract) external view returns (uint32); /// @notice A search routine for finding the correct input value of `insertAfter` to `recordStakeUpdate` / `_updateMiddlewareList`. function getCorrectValueForInsertAfter(address operator, uint32 updateBlock) external view returns (uint256); /** * @notice Returns 'true' if `operator` can currently complete a withdrawal started at the `withdrawalStartBlock`, with `middlewareTimesIndex` used * to specify the index of a `MiddlewareTimes` struct in the operator's list (i.e. an index in `operatorToMiddlewareTimes[operator]`). The specified * struct is consulted as proof of the `operator`'s ability (or lack thereof) to complete the withdrawal. * This function will return 'false' if the operator cannot currently complete a withdrawal started at the `withdrawalStartBlock`, *or* in the event * that an incorrect `middlewareTimesIndex` is supplied, even if one or more correct inputs exist. * @param operator Either the operator who queued the withdrawal themselves, or if the withdrawing party is a staker who delegated to an operator, * this address is the operator *who the staker was delegated to* at the time of the `withdrawalStartBlock`. * @param withdrawalStartBlock The block number at which the withdrawal was initiated. * @param middlewareTimesIndex Indicates an index in `operatorToMiddlewareTimes[operator]` to consult as proof of the `operator`'s ability to withdraw * @dev The correct `middlewareTimesIndex` input should be computable off-chain. */ function canWithdraw( address operator, uint32 withdrawalStartBlock, uint256 middlewareTimesIndex ) external returns (bool); /** * operator => * [ * ( * the least recent update block of all of the middlewares it's serving/served, * latest time that the stake bonded at that update needed to serve until * ) * ] */ function operatorToMiddlewareTimes( address operator, uint256 arrayIndex ) external view returns (MiddlewareTimes memory); /// @notice Getter function for fetching `operatorToMiddlewareTimes[operator].length` function middlewareTimesLength(address operator) external view returns (uint256); /// @notice Getter function for fetching `operatorToMiddlewareTimes[operator][index].stalestUpdateBlock`. function getMiddlewareTimesIndexStalestUpdateBlock(address operator, uint32 index) external view returns (uint32); /// @notice Getter function for fetching `operatorToMiddlewareTimes[operator][index].latestServeUntil`. function getMiddlewareTimesIndexServeUntilBlock(address operator, uint32 index) external view returns (uint32); /// @notice Getter function for fetching `_operatorToWhitelistedContractsByUpdate[operator].size`. function operatorWhitelistedContractsLinkedListSize(address operator) external view returns (uint256); /// @notice Getter function for fetching a single node in the operator's linked list (`_operatorToWhitelistedContractsByUpdate[operator]`). function operatorWhitelistedContractsLinkedListEntry( address operator, address node ) external view returns (bool, uint256, uint256); }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity >=0.5.0; import "@openzeppelin/contracts/proxy/beacon/IBeacon.sol"; import "./IETHPOSDeposit.sol"; import "./IStrategyManager.sol"; import "./IEigenPod.sol"; import "./IBeaconChainOracle.sol"; import "./IPausable.sol"; import "./ISlasher.sol"; import "./IStrategy.sol"; /** * @title Interface for factory that creates and manages solo staking pods that have their withdrawal credentials pointed to EigenLayer. * @author Layr Labs, Inc. * @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service */ interface IEigenPodManager is IPausable { /// @notice Emitted to notify the update of the beaconChainOracle address event BeaconOracleUpdated(address indexed newOracleAddress); /// @notice Emitted to notify the deployment of an EigenPod event PodDeployed(address indexed eigenPod, address indexed podOwner); /// @notice Emitted to notify a deposit of beacon chain ETH recorded in the strategy manager event BeaconChainETHDeposited(address indexed podOwner, uint256 amount); /// @notice Emitted when the balance of an EigenPod is updated event PodSharesUpdated(address indexed podOwner, int256 sharesDelta); /// @notice Emitted when a withdrawal of beacon chain ETH is completed event BeaconChainETHWithdrawalCompleted( address indexed podOwner, uint256 shares, uint96 nonce, address delegatedAddress, address withdrawer, bytes32 withdrawalRoot ); event DenebForkTimestampUpdated(uint64 newValue); /** * @notice Creates an EigenPod for the sender. * @dev Function will revert if the `msg.sender` already has an EigenPod. * @dev Returns EigenPod address */ function createPod() external returns (address); /** * @notice Stakes for a new beacon chain validator on the sender's EigenPod. * Also creates an EigenPod for the sender if they don't have one already. * @param pubkey The 48 bytes public key of the beacon chain validator. * @param signature The validator's signature of the deposit data. * @param depositDataRoot The root/hash of the deposit data for the validator's deposit. */ function stake(bytes calldata pubkey, bytes calldata signature, bytes32 depositDataRoot) external payable; /** * @notice Changes the `podOwner`'s shares by `sharesDelta` and performs a call to the DelegationManager * to ensure that delegated shares are also tracked correctly * @param podOwner is the pod owner whose balance is being updated. * @param sharesDelta is the change in podOwner's beaconChainETHStrategy shares * @dev Callable only by the podOwner's EigenPod contract. * @dev Reverts if `sharesDelta` is not a whole Gwei amount */ function recordBeaconChainETHBalanceUpdate(address podOwner, int256 sharesDelta) external; /** * @notice Updates the oracle contract that provides the beacon chain state root * @param newBeaconChainOracle is the new oracle contract being pointed to * @dev Callable only by the owner of this contract (i.e. governance) */ function updateBeaconChainOracle(IBeaconChainOracle newBeaconChainOracle) external; /// @notice Returns the address of the `podOwner`'s EigenPod if it has been deployed. function ownerToPod(address podOwner) external view returns (IEigenPod); /// @notice Returns the address of the `podOwner`'s EigenPod (whether it is deployed yet or not). function getPod(address podOwner) external view returns (IEigenPod); /// @notice The ETH2 Deposit Contract function ethPOS() external view returns (IETHPOSDeposit); /// @notice Beacon proxy to which the EigenPods point function eigenPodBeacon() external view returns (IBeacon); /// @notice Oracle contract that provides updates to the beacon chain's state function beaconChainOracle() external view returns (IBeaconChainOracle); /// @notice Returns the beacon block root at `timestamp`. Reverts if the Beacon block root at `timestamp` has not yet been finalized. function getBlockRootAtTimestamp(uint64 timestamp) external view returns (bytes32); /// @notice EigenLayer's StrategyManager contract function strategyManager() external view returns (IStrategyManager); /// @notice EigenLayer's Slasher contract function slasher() external view returns (ISlasher); /// @notice Returns 'true' if the `podOwner` has created an EigenPod, and 'false' otherwise. function hasPod(address podOwner) external view returns (bool); /// @notice Returns the number of EigenPods that have been created function numPods() external view returns (uint256); /** * @notice Mapping from Pod owner owner to the number of shares they have in the virtual beacon chain ETH strategy. * @dev The share amount can become negative. This is necessary to accommodate the fact that a pod owner's virtual beacon chain ETH shares can * decrease between the pod owner queuing and completing a withdrawal. * When the pod owner's shares would otherwise increase, this "deficit" is decreased first _instead_. * Likewise, when a withdrawal is completed, this "deficit" is decreased and the withdrawal amount is decreased; We can think of this * as the withdrawal "paying off the deficit". */ function podOwnerShares(address podOwner) external view returns (int256); /// @notice returns canonical, virtual beaconChainETH strategy function beaconChainETHStrategy() external view returns (IStrategy); /** * @notice Used by the DelegationManager to remove a pod owner's shares while they're in the withdrawal queue. * Simply decreases the `podOwner`'s shares by `shares`, down to a minimum of zero. * @dev This function reverts if it would result in `podOwnerShares[podOwner]` being less than zero, i.e. it is forbidden for this function to * result in the `podOwner` incurring a "share deficit". This behavior prevents a Staker from queuing a withdrawal which improperly removes excessive * shares from the operator to whom the staker is delegated. * @dev Reverts if `shares` is not a whole Gwei amount */ function removeShares(address podOwner, uint256 shares) external; /** * @notice Increases the `podOwner`'s shares by `shares`, paying off deficit if possible. * Used by the DelegationManager to award a pod owner shares on exiting the withdrawal queue * @dev Returns the number of shares added to `podOwnerShares[podOwner]` above zero, which will be less than the `shares` input * in the event that the podOwner has an existing shares deficit (i.e. `podOwnerShares[podOwner]` starts below zero) * @dev Reverts if `shares` is not a whole Gwei amount */ function addShares(address podOwner, uint256 shares) external returns (uint256); /** * @notice Used by the DelegationManager to complete a withdrawal, sending tokens to some destination address * @dev Prioritizes decreasing the podOwner's share deficit, if they have one * @dev Reverts if `shares` is not a whole Gwei amount */ function withdrawSharesAsTokens(address podOwner, address destination, uint256 shares) external; /** * @notice the deneb hard fork timestamp used to determine which proof path to use for proving a withdrawal */ function denebForkTimestamp() external view returns (uint64); /** * setting the deneb hard fork timestamp by the eigenPodManager owner * @dev this function is designed to be called twice. Once, it is set to type(uint64).max * prior to the actual deneb fork timestamp being set, and then the second time it is set * to the actual deneb fork timestamp. */ function setDenebForkTimestamp(uint64 newDenebForkTimestamp) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol) pragma solidity ^0.8.0; /** * @dev This is the interface that {BeaconProxy} expects of its beacon. */ interface IBeacon { /** * @dev Must return an address that can be used as a delegate call target. * * {BeaconProxy} will check that this address is a contract. */ function implementation() external view returns (address); }
// ┏━━━┓━┏┓━┏┓━━┏━━━┓━━┏━━━┓━━━━┏━━━┓━━━━━━━━━━━━━━━━━━━┏┓━━━━━┏━━━┓━━━━━━━━━┏┓━━━━━━━━━━━━━━┏┓━ // ┃┏━━┛┏┛┗┓┃┃━━┃┏━┓┃━━┃┏━┓┃━━━━┗┓┏┓┃━━━━━━━━━━━━━━━━━━┏┛┗┓━━━━┃┏━┓┃━━━━━━━━┏┛┗┓━━━━━━━━━━━━┏┛┗┓ // ┃┗━━┓┗┓┏┛┃┗━┓┗┛┏┛┃━━┃┃━┃┃━━━━━┃┃┃┃┏━━┓┏━━┓┏━━┓┏━━┓┏┓┗┓┏┛━━━━┃┃━┗┛┏━━┓┏━┓━┗┓┏┛┏━┓┏━━┓━┏━━┓┗┓┏┛ // ┃┏━━┛━┃┃━┃┏┓┃┏━┛┏┛━━┃┃━┃┃━━━━━┃┃┃┃┃┏┓┃┃┏┓┃┃┏┓┃┃━━┫┣┫━┃┃━━━━━┃┃━┏┓┃┏┓┃┃┏┓┓━┃┃━┃┏┛┗━┓┃━┃┏━┛━┃┃━ // ┃┗━━┓━┃┗┓┃┃┃┃┃┃┗━┓┏┓┃┗━┛┃━━━━┏┛┗┛┃┃┃━┫┃┗┛┃┃┗┛┃┣━━┃┃┃━┃┗┓━━━━┃┗━┛┃┃┗┛┃┃┃┃┃━┃┗┓┃┃━┃┗┛┗┓┃┗━┓━┃┗┓ // ┗━━━┛━┗━┛┗┛┗┛┗━━━┛┗┛┗━━━┛━━━━┗━━━┛┗━━┛┃┏━┛┗━━┛┗━━┛┗┛━┗━┛━━━━┗━━━┛┗━━┛┗┛┗┛━┗━┛┗┛━┗━━━┛┗━━┛━┗━┛ // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┃┃━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ // ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┗┛━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ // SPDX-License-Identifier: CC0-1.0 pragma solidity >=0.5.0; // This interface is designed to be compatible with the Vyper version. /// @notice This is the Ethereum 2.0 deposit contract interface. /// For more information see the Phase 0 specification under https://github.com/ethereum/eth2.0-specs interface IETHPOSDeposit { /// @notice A processed deposit event. event DepositEvent(bytes pubkey, bytes withdrawal_credentials, bytes amount, bytes signature, bytes index); /// @notice Submit a Phase 0 DepositData object. /// @param pubkey A BLS12-381 public key. /// @param withdrawal_credentials Commitment to a public key for withdrawals. /// @param signature A BLS12-381 signature. /// @param deposit_data_root The SHA-256 hash of the SSZ-encoded DepositData object. /// Used as a protection against malformed input. function deposit( bytes calldata pubkey, bytes calldata withdrawal_credentials, bytes calldata signature, bytes32 deposit_data_root ) external payable; /// @notice Query the current deposit root hash. /// @return The deposit root hash. function get_deposit_root() external view returns (bytes32); /// @notice Query the current deposit count. /// @return The deposit count encoded as a little endian 64-bit number. function get_deposit_count() external view returns (bytes memory); }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity >=0.5.0; import "../libraries/BeaconChainProofs.sol"; import "./IEigenPodManager.sol"; import "./IBeaconChainOracle.sol"; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; /** * @title The implementation contract used for restaking beacon chain ETH on EigenLayer * @author Layr Labs, Inc. * @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service * @notice The main functionalities are: * - creating new ETH validators with their withdrawal credentials pointed to this contract * - proving from beacon chain state roots that withdrawal credentials are pointed to this contract * - proving from beacon chain state roots the balances of ETH validators with their withdrawal credentials * pointed to this contract * - updating aggregate balances in the EigenPodManager * - withdrawing eth when withdrawals are initiated * @dev Note that all beacon chain balances are stored as gwei within the beacon chain datastructures. We choose * to account balances in terms of gwei in the EigenPod contract and convert to wei when making calls to other contracts */ interface IEigenPod { enum VALIDATOR_STATUS { INACTIVE, // doesnt exist ACTIVE, // staked on ethpos and withdrawal credentials are pointed to the EigenPod WITHDRAWN // withdrawn from the Beacon Chain } struct ValidatorInfo { // index of the validator in the beacon chain uint64 validatorIndex; // amount of beacon chain ETH restaked on EigenLayer in gwei uint64 restakedBalanceGwei; //timestamp of the validator's most recent balance update uint64 mostRecentBalanceUpdateTimestamp; // status of the validator VALIDATOR_STATUS status; } /** * @notice struct used to store amounts related to proven withdrawals in memory. Used to help * manage stack depth and optimize the number of external calls, when batching withdrawal operations. */ struct VerifiedWithdrawal { // amount to send to a podOwner from a proven withdrawal uint256 amountToSendGwei; // difference in shares to be recorded in the eigenPodManager, as a result of the withdrawal int256 sharesDeltaGwei; } enum PARTIAL_WITHDRAWAL_CLAIM_STATUS { REDEEMED, PENDING, FAILED } /// @notice Emitted when an ETH validator stakes via this eigenPod event EigenPodStaked(bytes pubkey); /// @notice Emitted when an ETH validator's withdrawal credentials are successfully verified to be pointed to this eigenPod event ValidatorRestaked(uint40 validatorIndex); /// @notice Emitted when an ETH validator's balance is proven to be updated. Here newValidatorBalanceGwei // is the validator's balance that is credited on EigenLayer. event ValidatorBalanceUpdated(uint40 validatorIndex, uint64 balanceTimestamp, uint64 newValidatorBalanceGwei); /// @notice Emitted when an ETH validator is prove to have withdrawn from the beacon chain event FullWithdrawalRedeemed( uint40 validatorIndex, uint64 withdrawalTimestamp, address indexed recipient, uint64 withdrawalAmountGwei ); /// @notice Emitted when a partial withdrawal claim is successfully redeemed event PartialWithdrawalRedeemed( uint40 validatorIndex, uint64 withdrawalTimestamp, address indexed recipient, uint64 partialWithdrawalAmountGwei ); /// @notice Emitted when restaked beacon chain ETH is withdrawn from the eigenPod. event RestakedBeaconChainETHWithdrawn(address indexed recipient, uint256 amount); /// @notice Emitted when podOwner enables restaking event RestakingActivated(address indexed podOwner); /// @notice Emitted when ETH is received via the `receive` fallback event NonBeaconChainETHReceived(uint256 amountReceived); /// @notice Emitted when ETH that was previously received via the `receive` fallback is withdrawn event NonBeaconChainETHWithdrawn(address indexed recipient, uint256 amountWithdrawn); /// @notice The max amount of eth, in gwei, that can be restaked per validator function MAX_RESTAKED_BALANCE_GWEI_PER_VALIDATOR() external view returns (uint64); /// @notice the amount of execution layer ETH in this contract that is staked in EigenLayer (i.e. withdrawn from beaconchain but not EigenLayer), function withdrawableRestakedExecutionLayerGwei() external view returns (uint64); /// @notice any ETH deposited into the EigenPod contract via the `receive` fallback function function nonBeaconChainETHBalanceWei() external view returns (uint256); /// @notice Used to initialize the pointers to contracts crucial to the pod's functionality, in beacon proxy construction from EigenPodManager function initialize(address owner) external; /// @notice Called by EigenPodManager when the owner wants to create another ETH validator. function stake(bytes calldata pubkey, bytes calldata signature, bytes32 depositDataRoot) external payable; /** * @notice Transfers `amountWei` in ether from this contract to the specified `recipient` address * @notice Called by EigenPodManager to withdrawBeaconChainETH that has been added to the EigenPod's balance due to a withdrawal from the beacon chain. * @dev The podOwner must have already proved sufficient withdrawals, so that this pod's `withdrawableRestakedExecutionLayerGwei` exceeds the * `amountWei` input (when converted to GWEI). * @dev Reverts if `amountWei` is not a whole Gwei amount */ function withdrawRestakedBeaconChainETH(address recipient, uint256 amount) external; /// @notice The single EigenPodManager for EigenLayer function eigenPodManager() external view returns (IEigenPodManager); /// @notice The owner of this EigenPod function podOwner() external view returns (address); /// @notice an indicator of whether or not the podOwner has ever "fully restaked" by successfully calling `verifyCorrectWithdrawalCredentials`. function hasRestaked() external view returns (bool); /** * @notice The latest timestamp at which the pod owner withdrew the balance of the pod, via calling `withdrawBeforeRestaking`. * @dev This variable is only updated when the `withdrawBeforeRestaking` function is called, which can only occur before `hasRestaked` is set to true for this pod. * Proofs for this pod are only valid against Beacon Chain state roots corresponding to timestamps after the stored `mostRecentWithdrawalTimestamp`. */ function mostRecentWithdrawalTimestamp() external view returns (uint64); /// @notice Returns the validatorInfo struct for the provided pubkeyHash function validatorPubkeyHashToInfo(bytes32 validatorPubkeyHash) external view returns (ValidatorInfo memory); /// @notice Returns the validatorInfo struct for the provided pubkey function validatorPubkeyToInfo(bytes calldata validatorPubkey) external view returns (ValidatorInfo memory); ///@notice mapping that tracks proven withdrawals function provenWithdrawal(bytes32 validatorPubkeyHash, uint64 slot) external view returns (bool); /// @notice This returns the status of a given validator function validatorStatus(bytes32 pubkeyHash) external view returns (VALIDATOR_STATUS); /// @notice This returns the status of a given validator pubkey function validatorStatus(bytes calldata validatorPubkey) external view returns (VALIDATOR_STATUS); /** * @notice This function verifies that the withdrawal credentials of validator(s) owned by the podOwner are pointed to * this contract. It also verifies the effective balance of the validator. It verifies the provided proof of the ETH validator against the beacon chain state * root, marks the validator as 'active' in EigenLayer, and credits the restaked ETH in Eigenlayer. * @param oracleTimestamp is the Beacon Chain timestamp whose state root the `proof` will be proven against. * @param validatorIndices is the list of indices of the validators being proven, refer to consensus specs * @param withdrawalCredentialProofs is an array of proofs, where each proof proves each ETH validator's balance and withdrawal credentials * against a beacon chain state root * @param validatorFields are the fields of the "Validator Container", refer to consensus specs * for details: https://github.com/ethereum/consensus-specs/blob/dev/specs/phase0/beacon-chain.md#validator */ function verifyWithdrawalCredentials( uint64 oracleTimestamp, BeaconChainProofs.StateRootProof calldata stateRootProof, uint40[] calldata validatorIndices, bytes[] calldata withdrawalCredentialProofs, bytes32[][] calldata validatorFields ) external; /** * @notice This function records an update (either increase or decrease) in the pod's balance in the StrategyManager. It also verifies a merkle proof of the validator's current beacon chain balance. * @param oracleTimestamp The oracleTimestamp whose state root the `proof` will be proven against. * Must be within `VERIFY_BALANCE_UPDATE_WINDOW_SECONDS` of the current block. * @param validatorIndices is the list of indices of the validators being proven, refer to consensus specs * @param validatorFieldsProofs proofs against the `beaconStateRoot` for each validator in `validatorFields` * @param validatorFields are the fields of the "Validator Container", refer to consensus specs * @dev For more details on the Beacon Chain spec, see: https://github.com/ethereum/consensus-specs/blob/dev/specs/phase0/beacon-chain.md#validator */ function verifyBalanceUpdates( uint64 oracleTimestamp, uint40[] calldata validatorIndices, BeaconChainProofs.StateRootProof calldata stateRootProof, bytes[] calldata validatorFieldsProofs, bytes32[][] calldata validatorFields ) external; /** * @notice This function records full and partial withdrawals on behalf of one of the Ethereum validators for this EigenPod * @param oracleTimestamp is the timestamp of the oracle slot that the withdrawal is being proven against * @param withdrawalProofs is the information needed to check the veracity of the block numbers and withdrawals being proven * @param validatorFieldsProofs is the proof of the validator's fields' in the validator tree * @param withdrawalFields are the fields of the withdrawals being proven * @param validatorFields are the fields of the validators being proven */ function verifyAndProcessWithdrawals( uint64 oracleTimestamp, BeaconChainProofs.StateRootProof calldata stateRootProof, BeaconChainProofs.WithdrawalProof[] calldata withdrawalProofs, bytes[] calldata validatorFieldsProofs, bytes32[][] calldata validatorFields, bytes32[][] calldata withdrawalFields ) external; /** * @notice Called by the pod owner to activate restaking by withdrawing * all existing ETH from the pod and preventing further withdrawals via * "withdrawBeforeRestaking()" */ function activateRestaking() external; /// @notice Called by the pod owner to withdraw the balance of the pod when `hasRestaked` is set to false function withdrawBeforeRestaking() external; /// @notice Called by the pod owner to withdraw the nonBeaconChainETHBalanceWei function withdrawNonBeaconChainETHBalanceWei(address recipient, uint256 amountToWithdraw) external; /// @notice called by owner of a pod to remove any ERC20s deposited in the pod function recoverTokens(IERC20[] memory tokenList, uint256[] memory amountsToWithdraw, address recipient) external; }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity >=0.5.0; /** * @title Interface for the BeaconStateOracle contract. * @author Layr Labs, Inc. * @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service */ interface IBeaconChainOracle { /// @notice The block number to state root mapping. function timestampToBlockRoot(uint256 timestamp) external view returns (bytes32); }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity >=0.5.0; import "../interfaces/IPauserRegistry.sol"; /** * @title Adds pausability to a contract, with pausing & unpausing controlled by the `pauser` and `unpauser` of a PauserRegistry contract. * @author Layr Labs, Inc. * @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service * @notice Contracts that inherit from this contract may define their own `pause` and `unpause` (and/or related) functions. * These functions should be permissioned as "onlyPauser" which defers to a `PauserRegistry` for determining access control. * @dev Pausability is implemented using a uint256, which allows up to 256 different single bit-flags; each bit can potentially pause different functionality. * Inspiration for this was taken from the NearBridge design here https://etherscan.io/address/0x3FEFc5A4B1c02f21cBc8D3613643ba0635b9a873#code. * For the `pause` and `unpause` functions we've implemented, if you pause, you can only flip (any number of) switches to on/1 (aka "paused"), and if you unpause, * you can only flip (any number of) switches to off/0 (aka "paused"). * If you want a pauseXYZ function that just flips a single bit / "pausing flag", it will: * 1) 'bit-wise and' (aka `&`) a flag with the current paused state (as a uint256) * 2) update the paused state to this new value * @dev We note as well that we have chosen to identify flags by their *bit index* as opposed to their numerical value, so, e.g. defining `DEPOSITS_PAUSED = 3` * indicates specifically that if the *third bit* of `_paused` is flipped -- i.e. it is a '1' -- then deposits should be paused */ interface IPausable { /// @notice Emitted when the `pauserRegistry` is set to `newPauserRegistry`. event PauserRegistrySet(IPauserRegistry pauserRegistry, IPauserRegistry newPauserRegistry); /// @notice Emitted when the pause is triggered by `account`, and changed to `newPausedStatus`. event Paused(address indexed account, uint256 newPausedStatus); /// @notice Emitted when the pause is lifted by `account`, and changed to `newPausedStatus`. event Unpaused(address indexed account, uint256 newPausedStatus); /// @notice Address of the `PauserRegistry` contract that this contract defers to for determining access control (for pausing). function pauserRegistry() external view returns (IPauserRegistry); /** * @notice This function is used to pause an EigenLayer contract's functionality. * It is permissioned to the `pauser` address, which is expected to be a low threshold multisig. * @param newPausedStatus represents the new value for `_paused` to take, which means it may flip several bits at once. * @dev This function can only pause functionality, and thus cannot 'unflip' any bit in `_paused` from 1 to 0. */ function pause(uint256 newPausedStatus) external; /** * @notice Alias for `pause(type(uint256).max)`. */ function pauseAll() external; /** * @notice This function is used to unpause an EigenLayer contract's functionality. * It is permissioned to the `unpauser` address, which is expected to be a high threshold multisig or governance contract. * @param newPausedStatus represents the new value for `_paused` to take, which means it may flip several bits at once. * @dev This function can only unpause functionality, and thus cannot 'flip' any bit in `_paused` from 0 to 1. */ function unpause(uint256 newPausedStatus) external; /// @notice Returns the current paused status as a uint256. function paused() external view returns (uint256); /// @notice Returns 'true' if the `indexed`th bit of `_paused` is 1, and 'false' otherwise function paused(uint8 index) external view returns (bool); /// @notice Allows the unpauser to set a new pauser registry function setPauserRegistry(IPauserRegistry newPauserRegistry) external; }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.0; import "./Merkle.sol"; import "../libraries/Endian.sol"; //Utility library for parsing and PHASE0 beacon chain block headers //SSZ Spec: https://github.com/ethereum/consensus-specs/blob/dev/ssz/simple-serialize.md#merkleization //BeaconBlockHeader Spec: https://github.com/ethereum/consensus-specs/blob/dev/specs/phase0/beacon-chain.md#beaconblockheader //BeaconState Spec: https://github.com/ethereum/consensus-specs/blob/dev/specs/phase0/beacon-chain.md#beaconstate library BeaconChainProofs { // constants are the number of fields and the heights of the different merkle trees used in merkleizing beacon chain containers uint256 internal constant BEACON_BLOCK_HEADER_FIELD_TREE_HEIGHT = 3; uint256 internal constant BEACON_BLOCK_BODY_FIELD_TREE_HEIGHT = 4; uint256 internal constant BEACON_STATE_FIELD_TREE_HEIGHT = 5; uint256 internal constant VALIDATOR_FIELD_TREE_HEIGHT = 3; //Note: changed in the deneb hard fork from 4->5 uint256 internal constant EXECUTION_PAYLOAD_HEADER_FIELD_TREE_HEIGHT_DENEB = 5; uint256 internal constant EXECUTION_PAYLOAD_HEADER_FIELD_TREE_HEIGHT_CAPELLA = 4; // SLOTS_PER_HISTORICAL_ROOT = 2**13, so tree height is 13 uint256 internal constant BLOCK_ROOTS_TREE_HEIGHT = 13; //HISTORICAL_ROOTS_LIMIT = 2**24, so tree height is 24 uint256 internal constant HISTORICAL_SUMMARIES_TREE_HEIGHT = 24; //Index of block_summary_root in historical_summary container uint256 internal constant BLOCK_SUMMARY_ROOT_INDEX = 0; // tree height for hash tree of an individual withdrawal container uint256 internal constant WITHDRAWAL_FIELD_TREE_HEIGHT = 2; uint256 internal constant VALIDATOR_TREE_HEIGHT = 40; // MAX_WITHDRAWALS_PER_PAYLOAD = 2**4, making tree height = 4 uint256 internal constant WITHDRAWALS_TREE_HEIGHT = 4; //in beacon block body https://github.com/ethereum/consensus-specs/blob/dev/specs/capella/beacon-chain.md#beaconblockbody uint256 internal constant EXECUTION_PAYLOAD_INDEX = 9; // in beacon block header https://github.com/ethereum/consensus-specs/blob/dev/specs/phase0/beacon-chain.md#beaconblockheader uint256 internal constant SLOT_INDEX = 0; uint256 internal constant STATE_ROOT_INDEX = 3; uint256 internal constant BODY_ROOT_INDEX = 4; // in beacon state https://github.com/ethereum/consensus-specs/blob/dev/specs/capella/beacon-chain.md#beaconstate uint256 internal constant VALIDATOR_TREE_ROOT_INDEX = 11; uint256 internal constant HISTORICAL_SUMMARIES_INDEX = 27; // in validator https://github.com/ethereum/consensus-specs/blob/dev/specs/phase0/beacon-chain.md#validator uint256 internal constant VALIDATOR_PUBKEY_INDEX = 0; uint256 internal constant VALIDATOR_WITHDRAWAL_CREDENTIALS_INDEX = 1; uint256 internal constant VALIDATOR_BALANCE_INDEX = 2; uint256 internal constant VALIDATOR_WITHDRAWABLE_EPOCH_INDEX = 7; // in execution payload header uint256 internal constant TIMESTAMP_INDEX = 9; //in execution payload uint256 internal constant WITHDRAWALS_INDEX = 14; // in withdrawal uint256 internal constant WITHDRAWAL_VALIDATOR_INDEX_INDEX = 1; uint256 internal constant WITHDRAWAL_VALIDATOR_AMOUNT_INDEX = 3; //Misc Constants /// @notice The number of slots each epoch in the beacon chain uint64 internal constant SLOTS_PER_EPOCH = 32; /// @notice The number of seconds in a slot in the beacon chain uint64 internal constant SECONDS_PER_SLOT = 12; /// @notice Number of seconds per epoch: 384 == 32 slots/epoch * 12 seconds/slot uint64 internal constant SECONDS_PER_EPOCH = SLOTS_PER_EPOCH * SECONDS_PER_SLOT; bytes8 internal constant UINT64_MASK = 0xffffffffffffffff; /// @notice This struct contains the merkle proofs and leaves needed to verify a partial/full withdrawal struct WithdrawalProof { bytes withdrawalProof; bytes slotProof; bytes executionPayloadProof; bytes timestampProof; bytes historicalSummaryBlockRootProof; uint64 blockRootIndex; uint64 historicalSummaryIndex; uint64 withdrawalIndex; bytes32 blockRoot; bytes32 slotRoot; bytes32 timestampRoot; bytes32 executionPayloadRoot; } /// @notice This struct contains the root and proof for verifying the state root against the oracle block root struct StateRootProof { bytes32 beaconStateRoot; bytes proof; } /** * @notice This function verifies merkle proofs of the fields of a certain validator against a beacon chain state root * @param validatorIndex the index of the proven validator * @param beaconStateRoot is the beacon chain state root to be proven against. * @param validatorFieldsProof is the data used in proving the validator's fields * @param validatorFields the claimed fields of the validator */ function verifyValidatorFields( bytes32 beaconStateRoot, bytes32[] calldata validatorFields, bytes calldata validatorFieldsProof, uint40 validatorIndex ) internal view { require( validatorFields.length == 2 ** VALIDATOR_FIELD_TREE_HEIGHT, "BeaconChainProofs.verifyValidatorFields: Validator fields has incorrect length" ); /** * Note: the length of the validator merkle proof is BeaconChainProofs.VALIDATOR_TREE_HEIGHT + 1. * There is an additional layer added by hashing the root with the length of the validator list */ require( validatorFieldsProof.length == 32 * ((VALIDATOR_TREE_HEIGHT + 1) + BEACON_STATE_FIELD_TREE_HEIGHT), "BeaconChainProofs.verifyValidatorFields: Proof has incorrect length" ); uint256 index = (VALIDATOR_TREE_ROOT_INDEX << (VALIDATOR_TREE_HEIGHT + 1)) | uint256(validatorIndex); // merkleize the validatorFields to get the leaf to prove bytes32 validatorRoot = Merkle.merkleizeSha256(validatorFields); // verify the proof of the validatorRoot against the beaconStateRoot require( Merkle.verifyInclusionSha256({ proof: validatorFieldsProof, root: beaconStateRoot, leaf: validatorRoot, index: index }), "BeaconChainProofs.verifyValidatorFields: Invalid merkle proof" ); } /** * @notice This function verifies the latestBlockHeader against the state root. the latestBlockHeader is * a tracked in the beacon state. * @param beaconStateRoot is the beacon chain state root to be proven against. * @param stateRootProof is the provided merkle proof * @param latestBlockRoot is hashtree root of the latest block header in the beacon state */ function verifyStateRootAgainstLatestBlockRoot( bytes32 latestBlockRoot, bytes32 beaconStateRoot, bytes calldata stateRootProof ) internal view { require( stateRootProof.length == 32 * (BEACON_BLOCK_HEADER_FIELD_TREE_HEIGHT), "BeaconChainProofs.verifyStateRootAgainstLatestBlockRoot: Proof has incorrect length" ); //Next we verify the slot against the blockRoot require( Merkle.verifyInclusionSha256({ proof: stateRootProof, root: latestBlockRoot, leaf: beaconStateRoot, index: STATE_ROOT_INDEX }), "BeaconChainProofs.verifyStateRootAgainstLatestBlockRoot: Invalid latest block header root merkle proof" ); } /** * @notice This function verifies the slot and the withdrawal fields for a given withdrawal * @param withdrawalProof is the provided set of merkle proofs * @param withdrawalFields is the serialized withdrawal container to be proven */ function verifyWithdrawal( bytes32 beaconStateRoot, bytes32[] calldata withdrawalFields, WithdrawalProof calldata withdrawalProof, uint64 denebForkTimestamp ) internal view { require( withdrawalFields.length == 2 ** WITHDRAWAL_FIELD_TREE_HEIGHT, "BeaconChainProofs.verifyWithdrawal: withdrawalFields has incorrect length" ); require( withdrawalProof.blockRootIndex < 2 ** BLOCK_ROOTS_TREE_HEIGHT, "BeaconChainProofs.verifyWithdrawal: blockRootIndex is too large" ); require( withdrawalProof.withdrawalIndex < 2 ** WITHDRAWALS_TREE_HEIGHT, "BeaconChainProofs.verifyWithdrawal: withdrawalIndex is too large" ); require( withdrawalProof.historicalSummaryIndex < 2 ** HISTORICAL_SUMMARIES_TREE_HEIGHT, "BeaconChainProofs.verifyWithdrawal: historicalSummaryIndex is too large" ); //Note: post deneb hard fork, the number of exection payload header fields increased from 15->17, adding an extra level to the tree height uint256 executionPayloadHeaderFieldTreeHeight = (getWithdrawalTimestamp(withdrawalProof) < denebForkTimestamp) ? EXECUTION_PAYLOAD_HEADER_FIELD_TREE_HEIGHT_CAPELLA : EXECUTION_PAYLOAD_HEADER_FIELD_TREE_HEIGHT_DENEB; require( withdrawalProof.withdrawalProof.length == 32 * (executionPayloadHeaderFieldTreeHeight + WITHDRAWALS_TREE_HEIGHT + 1), "BeaconChainProofs.verifyWithdrawal: withdrawalProof has incorrect length" ); require( withdrawalProof.executionPayloadProof.length == 32 * (BEACON_BLOCK_HEADER_FIELD_TREE_HEIGHT + BEACON_BLOCK_BODY_FIELD_TREE_HEIGHT), "BeaconChainProofs.verifyWithdrawal: executionPayloadProof has incorrect length" ); require( withdrawalProof.slotProof.length == 32 * (BEACON_BLOCK_HEADER_FIELD_TREE_HEIGHT), "BeaconChainProofs.verifyWithdrawal: slotProof has incorrect length" ); require( withdrawalProof.timestampProof.length == 32 * (executionPayloadHeaderFieldTreeHeight), "BeaconChainProofs.verifyWithdrawal: timestampProof has incorrect length" ); require( withdrawalProof.historicalSummaryBlockRootProof.length == 32 * (BEACON_STATE_FIELD_TREE_HEIGHT + (HISTORICAL_SUMMARIES_TREE_HEIGHT + 1) + 1 + (BLOCK_ROOTS_TREE_HEIGHT)), "BeaconChainProofs.verifyWithdrawal: historicalSummaryBlockRootProof has incorrect length" ); /** * Note: Here, the "1" in "1 + (BLOCK_ROOTS_TREE_HEIGHT)" signifies that extra step of choosing the "block_root_summary" within the individual * "historical_summary". Everywhere else it signifies merkelize_with_mixin, where the length of an array is hashed with the root of the array, * but not here. */ uint256 historicalBlockHeaderIndex = (HISTORICAL_SUMMARIES_INDEX << ((HISTORICAL_SUMMARIES_TREE_HEIGHT + 1) + 1 + (BLOCK_ROOTS_TREE_HEIGHT))) | (uint256(withdrawalProof.historicalSummaryIndex) << (1 + (BLOCK_ROOTS_TREE_HEIGHT))) | (BLOCK_SUMMARY_ROOT_INDEX << (BLOCK_ROOTS_TREE_HEIGHT)) | uint256(withdrawalProof.blockRootIndex); require( Merkle.verifyInclusionSha256({ proof: withdrawalProof.historicalSummaryBlockRootProof, root: beaconStateRoot, leaf: withdrawalProof.blockRoot, index: historicalBlockHeaderIndex }), "BeaconChainProofs.verifyWithdrawal: Invalid historicalsummary merkle proof" ); //Next we verify the slot against the blockRoot require( Merkle.verifyInclusionSha256({ proof: withdrawalProof.slotProof, root: withdrawalProof.blockRoot, leaf: withdrawalProof.slotRoot, index: SLOT_INDEX }), "BeaconChainProofs.verifyWithdrawal: Invalid slot merkle proof" ); { // Next we verify the executionPayloadRoot against the blockRoot uint256 executionPayloadIndex = (BODY_ROOT_INDEX << (BEACON_BLOCK_BODY_FIELD_TREE_HEIGHT)) | EXECUTION_PAYLOAD_INDEX; require( Merkle.verifyInclusionSha256({ proof: withdrawalProof.executionPayloadProof, root: withdrawalProof.blockRoot, leaf: withdrawalProof.executionPayloadRoot, index: executionPayloadIndex }), "BeaconChainProofs.verifyWithdrawal: Invalid executionPayload merkle proof" ); } // Next we verify the timestampRoot against the executionPayload root require( Merkle.verifyInclusionSha256({ proof: withdrawalProof.timestampProof, root: withdrawalProof.executionPayloadRoot, leaf: withdrawalProof.timestampRoot, index: TIMESTAMP_INDEX }), "BeaconChainProofs.verifyWithdrawal: Invalid timestamp merkle proof" ); { /** * Next we verify the withdrawal fields against the executionPayloadRoot: * First we compute the withdrawal_index, then we merkleize the * withdrawalFields container to calculate the withdrawalRoot. * * Note: Merkleization of the withdrawals root tree uses MerkleizeWithMixin, i.e., the length of the array is hashed with the root of * the array. Thus we shift the WITHDRAWALS_INDEX over by WITHDRAWALS_TREE_HEIGHT + 1 and not just WITHDRAWALS_TREE_HEIGHT. */ uint256 withdrawalIndex = (WITHDRAWALS_INDEX << (WITHDRAWALS_TREE_HEIGHT + 1)) | uint256(withdrawalProof.withdrawalIndex); bytes32 withdrawalRoot = Merkle.merkleizeSha256(withdrawalFields); require( Merkle.verifyInclusionSha256({ proof: withdrawalProof.withdrawalProof, root: withdrawalProof.executionPayloadRoot, leaf: withdrawalRoot, index: withdrawalIndex }), "BeaconChainProofs.verifyWithdrawal: Invalid withdrawal merkle proof" ); } } /** * @notice This function replicates the ssz hashing of a validator's pubkey, outlined below: * hh := ssz.NewHasher() * hh.PutBytes(validatorPubkey[:]) * validatorPubkeyHash := hh.Hash() * hh.Reset() */ function hashValidatorBLSPubkey(bytes memory validatorPubkey) internal pure returns (bytes32 pubkeyHash) { require(validatorPubkey.length == 48, "Input should be 48 bytes in length"); return sha256(abi.encodePacked(validatorPubkey, bytes16(0))); } /** * @dev Retrieve the withdrawal timestamp */ function getWithdrawalTimestamp(WithdrawalProof memory withdrawalProof) internal pure returns (uint64) { return Endian.fromLittleEndianUint64(withdrawalProof.timestampRoot); } /** * @dev Converts the withdrawal's slot to an epoch */ function getWithdrawalEpoch(WithdrawalProof memory withdrawalProof) internal pure returns (uint64) { return Endian.fromLittleEndianUint64(withdrawalProof.slotRoot) / SLOTS_PER_EPOCH; } /** * Indices for validator fields (refer to consensus specs): * 0: pubkey * 1: withdrawal credentials * 2: effective balance * 3: slashed? * 4: activation elligibility epoch * 5: activation epoch * 6: exit epoch * 7: withdrawable epoch */ /** * @dev Retrieves a validator's pubkey hash */ function getPubkeyHash(bytes32[] memory validatorFields) internal pure returns (bytes32) { return validatorFields[VALIDATOR_PUBKEY_INDEX]; } function getWithdrawalCredentials(bytes32[] memory validatorFields) internal pure returns (bytes32) { return validatorFields[VALIDATOR_WITHDRAWAL_CREDENTIALS_INDEX]; } /** * @dev Retrieves a validator's effective balance (in gwei) */ function getEffectiveBalanceGwei(bytes32[] memory validatorFields) internal pure returns (uint64) { return Endian.fromLittleEndianUint64(validatorFields[VALIDATOR_BALANCE_INDEX]); } /** * @dev Retrieves a validator's withdrawable epoch */ function getWithdrawableEpoch(bytes32[] memory validatorFields) internal pure returns (uint64) { return Endian.fromLittleEndianUint64(validatorFields[VALIDATOR_WITHDRAWABLE_EPOCH_INDEX]); } /** * Indices for withdrawal fields (refer to consensus specs): * 0: withdrawal index * 1: validator index * 2: execution address * 3: withdrawal amount */ /** * @dev Retrieves a withdrawal's validator index */ function getValidatorIndex(bytes32[] memory withdrawalFields) internal pure returns (uint40) { return uint40(Endian.fromLittleEndianUint64(withdrawalFields[WITHDRAWAL_VALIDATOR_INDEX_INDEX])); } /** * @dev Retrieves a withdrawal's withdrawal amount (in gwei) */ function getWithdrawalAmountGwei(bytes32[] memory withdrawalFields) internal pure returns (uint64) { return Endian.fromLittleEndianUint64(withdrawalFields[WITHDRAWAL_VALIDATOR_AMOUNT_INDEX]); } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity >=0.5.0; /** * @title Interface for the `PauserRegistry` contract. * @author Layr Labs, Inc. * @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service */ interface IPauserRegistry { event PauserStatusChanged(address pauser, bool canPause); event UnpauserChanged(address previousUnpauser, address newUnpauser); /// @notice Mapping of addresses to whether they hold the pauser role. function isPauser(address pauser) external view returns (bool); /// @notice Unique address that holds the unpauser role. Capable of changing *both* the pauser and unpauser addresses. function unpauser() external view returns (address); }
// SPDX-License-Identifier: MIT // Adapted from OpenZeppelin Contracts (last updated v4.8.0) (utils/cryptography/MerkleProof.sol) pragma solidity ^0.8.0; /** * @dev These functions deal with verification of Merkle Tree proofs. * * The tree and the proofs can be generated using our * https://github.com/OpenZeppelin/merkle-tree[JavaScript library]. * You will find a quickstart guide in the readme. * * WARNING: You should avoid using leaf values that are 64 bytes long prior to * hashing, or use a hash function other than keccak256 for hashing leaves. * This is because the concatenation of a sorted pair of internal nodes in * the merkle tree could be reinterpreted as a leaf value. * OpenZeppelin's JavaScript library generates merkle trees that are safe * against this attack out of the box. */ library Merkle { /** * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt * hash matches the root of the tree. The tree is built assuming `leaf` is * the 0 indexed `index`'th leaf from the bottom left of the tree. * * Note this is for a Merkle tree using the keccak/sha3 hash function */ function verifyInclusionKeccak( bytes memory proof, bytes32 root, bytes32 leaf, uint256 index ) internal pure returns (bool) { return processInclusionProofKeccak(proof, leaf, index) == root; } /** * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt * hash matches the root of the tree. The tree is built assuming `leaf` is * the 0 indexed `index`'th leaf from the bottom left of the tree. * * _Available since v4.4._ * * Note this is for a Merkle tree using the keccak/sha3 hash function */ function processInclusionProofKeccak( bytes memory proof, bytes32 leaf, uint256 index ) internal pure returns (bytes32) { require( proof.length != 0 && proof.length % 32 == 0, "Merkle.processInclusionProofKeccak: proof length should be a non-zero multiple of 32" ); bytes32 computedHash = leaf; for (uint256 i = 32; i <= proof.length; i += 32) { if (index % 2 == 0) { // if ith bit of index is 0, then computedHash is a left sibling assembly { mstore(0x00, computedHash) mstore(0x20, mload(add(proof, i))) computedHash := keccak256(0x00, 0x40) index := div(index, 2) } } else { // if ith bit of index is 1, then computedHash is a right sibling assembly { mstore(0x00, mload(add(proof, i))) mstore(0x20, computedHash) computedHash := keccak256(0x00, 0x40) index := div(index, 2) } } } return computedHash; } /** * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt * hash matches the root of the tree. The tree is built assuming `leaf` is * the 0 indexed `index`'th leaf from the bottom left of the tree. * * Note this is for a Merkle tree using the sha256 hash function */ function verifyInclusionSha256( bytes memory proof, bytes32 root, bytes32 leaf, uint256 index ) internal view returns (bool) { return processInclusionProofSha256(proof, leaf, index) == root; } /** * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt * hash matches the root of the tree. The tree is built assuming `leaf` is * the 0 indexed `index`'th leaf from the bottom left of the tree. * * _Available since v4.4._ * * Note this is for a Merkle tree using the sha256 hash function */ function processInclusionProofSha256( bytes memory proof, bytes32 leaf, uint256 index ) internal view returns (bytes32) { require( proof.length != 0 && proof.length % 32 == 0, "Merkle.processInclusionProofSha256: proof length should be a non-zero multiple of 32" ); bytes32[1] memory computedHash = [leaf]; for (uint256 i = 32; i <= proof.length; i += 32) { if (index % 2 == 0) { // if ith bit of index is 0, then computedHash is a left sibling assembly { mstore(0x00, mload(computedHash)) mstore(0x20, mload(add(proof, i))) if iszero(staticcall(sub(gas(), 2000), 2, 0x00, 0x40, computedHash, 0x20)) { revert(0, 0) } index := div(index, 2) } } else { // if ith bit of index is 1, then computedHash is a right sibling assembly { mstore(0x00, mload(add(proof, i))) mstore(0x20, mload(computedHash)) if iszero(staticcall(sub(gas(), 2000), 2, 0x00, 0x40, computedHash, 0x20)) { revert(0, 0) } index := div(index, 2) } } } return computedHash[0]; } /** @notice this function returns the merkle root of a tree created from a set of leaves using sha256 as its hash function @param leaves the leaves of the merkle tree @return The computed Merkle root of the tree. @dev A pre-condition to this function is that leaves.length is a power of two. If not, the function will merkleize the inputs incorrectly. */ function merkleizeSha256(bytes32[] memory leaves) internal pure returns (bytes32) { //there are half as many nodes in the layer above the leaves uint256 numNodesInLayer = leaves.length / 2; //create a layer to store the internal nodes bytes32[] memory layer = new bytes32[](numNodesInLayer); //fill the layer with the pairwise hashes of the leaves for (uint256 i = 0; i < numNodesInLayer; i++) { layer[i] = sha256(abi.encodePacked(leaves[2 * i], leaves[2 * i + 1])); } //the next layer above has half as many nodes numNodesInLayer /= 2; //while we haven't computed the root while (numNodesInLayer != 0) { //overwrite the first numNodesInLayer nodes in layer with the pairwise hashes of their children for (uint256 i = 0; i < numNodesInLayer; i++) { layer[i] = sha256(abi.encodePacked(layer[2 * i], layer[2 * i + 1])); } //the next layer above has half as many nodes numNodesInLayer /= 2; } //the first node in the layer is the root return layer[0]; } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.0; library Endian { /** * @notice Converts a little endian-formatted uint64 to a big endian-formatted uint64 * @param lenum little endian-formatted uint64 input, provided as 'bytes32' type * @return n The big endian-formatted uint64 * @dev Note that the input is formatted as a 'bytes32' type (i.e. 256 bits), but it is immediately truncated to a uint64 (i.e. 64 bits) * through a right-shift/shr operation. */ function fromLittleEndianUint64(bytes32 lenum) internal pure returns (uint64 n) { // the number needs to be stored in little-endian encoding (ie in bytes 0-8) n = uint64(uint256(lenum >> 192)); return (n >> 56) | ((0x00FF000000000000 & n) >> 40) | ((0x0000FF0000000000 & n) >> 24) | ((0x000000FF00000000 & n) >> 8) | ((0x00000000FF000000 & n) << 8) | ((0x0000000000FF0000 & n) << 24) | ((0x000000000000FF00 & n) << 40) | ((0x00000000000000FF & n) << 56); } }
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Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
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BN254.G2Point","name":"pubkeyG2","type":"tuple"}],"name":"NewPubkeyRegistration","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bytes32","name":"operatorId","type":"bytes32"},{"indexed":false,"internalType":"bytes","name":"quorumNumbers","type":"bytes"}],"name":"OperatorAddedToQuorums","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bytes32","name":"operatorId","type":"bytes32"},{"indexed":false,"internalType":"bytes","name":"quorumNumbers","type":"bytes"}],"name":"OperatorRemovedFromQuorums","type":"event"},{"inputs":[{"internalType":"uint8","name":"","type":"uint8"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"apkHistory","outputs":[{"internalType":"bytes24","name":"apkHash","type":"bytes24"},{"internalType":"uint32","name":"updateBlockNumber","type":"uint32"},{"internalType":"uint32","name":"nextUpdateBlockNumber","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint8","name":"","type":"uint8"}],"name":"currentApk","outputs":[{"internalType":"uint256","name":"X","type":"uint256"},{"internalType":"uint256","name":"Y","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bytes","name":"quorumNumbers","type":"bytes"}],"name":"deregisterOperator","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint8","name":"quorumNumber","type":"uint8"}],"name":"getApk","outputs":[{"components":[{"internalType":"uint256","name":"X","type":"uint256"},{"internalType":"uint256","name":"Y","type":"uint256"}],"internalType":"struct BN254.G1Point","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint8","name":"quorumNumber","type":"uint8"},{"internalType":"uint32","name":"blockNumber","type":"uint32"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"getApkHashAtBlockNumberAndIndex","outputs":[{"internalType":"bytes24","name":"","type":"bytes24"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint8","name":"quorumNumber","type":"uint8"}],"name":"getApkHistoryLength","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes","name":"quorumNumbers","type":"bytes"},{"internalType":"uint256","name":"blockNumber","type":"uint256"}],"name":"getApkIndicesAtBlockNumber","outputs":[{"internalType":"uint32[]","name":"","type":"uint32[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint8","name":"quorumNumber","type":"uint8"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"getApkUpdateAtIndex","outputs":[{"components":[{"internalType":"bytes24","name":"apkHash","type":"bytes24"},{"internalType":"uint32","name":"updateBlockNumber","type":"uint32"},{"internalType":"uint32","name":"nextUpdateBlockNumber","type":"uint32"}],"internalType":"struct IBLSApkRegistry.ApkUpdate","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"pubkeyHash","type":"bytes32"}],"name":"getOperatorFromPubkeyHash","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"}],"name":"getOperatorId","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"}],"name":"getRegisteredPubkey","outputs":[{"components":[{"internalType":"uint256","name":"X","type":"uint256"},{"internalType":"uint256","name":"Y","type":"uint256"}],"internalType":"struct BN254.G1Point","name":"","type":"tuple"},{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint8","name":"quorumNumber","type":"uint8"}],"name":"initializeQuorum","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"operatorToPubkey","outputs":[{"internalType":"uint256","name":"X","type":"uint256"},{"internalType":"uint256","name":"Y","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"operatorToPubkeyHash","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"pubkeyHashToOperator","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"components":[{"components":[{"internalType":"uint256","name":"X","type":"uint256"},{"internalType":"uint256","name":"Y","type":"uint256"}],"internalType":"struct BN254.G1Point","name":"pubkeyRegistrationSignature","type":"tuple"},{"components":[{"internalType":"uint256","name":"X","type":"uint256"},{"internalType":"uint256","name":"Y","type":"uint256"}],"internalType":"struct BN254.G1Point","name":"pubkeyG1","type":"tuple"},{"components":[{"internalType":"uint256[2]","name":"X","type":"uint256[2]"},{"internalType":"uint256[2]","name":"Y","type":"uint256[2]"}],"internalType":"struct BN254.G2Point","name":"pubkeyG2","type":"tuple"}],"internalType":"struct IBLSApkRegistry.PubkeyRegistrationParams","name":"params","type":"tuple"},{"components":[{"internalType":"uint256","name":"X","type":"uint256"},{"internalType":"uint256","name":"Y","type":"uint256"}],"internalType":"struct BN254.G1Point","name":"pubkeyRegistrationMessageHash","type":"tuple"}],"name":"registerBLSPublicKey","outputs":[{"internalType":"bytes32","name":"operatorId","type":"bytes32"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bytes","name":"quorumNumbers","type":"bytes"}],"name":"registerOperator","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"registryCoordinator","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]
Deployed Bytecode
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Multichain Portfolio | 26 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.