feat: slasher templates / examples

foundry.toml

@@ -15,7 +15,7 @@ optimizer_runs = 200
 # Whether or not to use the Yul intermediate representation compilation pipeline
 via_ir = false
 # Override the Solidity version (this overrides `auto_detect_solc`)
-solc_version = '0.8.12'
+solc_version = '0.8.27'
 
 [etherscan]
 mainnet = { key = "${ETHERSCAN_API_KEY}" }

script/OperatorSetUpgrade.s.sol

@@ -12,6 +12,7 @@ import {IBLSApkRegistry} from "../src/interfaces/IBLSApkRegistry.sol";
 import {IIndexRegistry} from "../src/interfaces/IIndexRegistry.sol";
 import {IRewardsCoordinator} from "eigenlayer-contracts/src/contracts/interfaces/IRewardsCoordinator.sol";
 import {IAVSDirectory} from "eigenlayer-contracts/src/contracts/interfaces/IAVSDirectory.sol";
+import {IAllocationManager} from "eigenlayer-contracts/src/contracts/interfaces/IAllocationManager.sol";
 import {IDelegationManager} from "eigenlayer-contracts/src/contracts/interfaces/IDelegationManager.sol";
 interface IServiceManagerMigration {
     function getOperatorsToMigrate()
@@ -46,6 +47,7 @@ contract OperatorSetUpgradeScript is Script {
     address public delegationManager;
     address public blsApkRegistry;
     address public indexRegistry;
+    address public allocationManager;
 
     function setUp() public {
         vm.label(DEFAULT_FORGE_SENDER, "DEFAULT FORGE SENDER");
@@ -145,7 +147,7 @@ contract OperatorSetUpgradeScript is Script {
     function _upgradeAvsDirectory() internal {
         address proxyAdmin = OperatorSetUpgradeLib.getAdmin(avsDirectory);
         address avsDirectoryOwner = Ownable(proxyAdmin).owner();
-        AVSDirectory avsDirectoryImpl = new AVSDirectory(IDelegationManager(delegationManager));
+        AVSDirectory avsDirectoryImpl = new AVSDirectory(IDelegationManager(delegationManager), 0); // TODO: config
 
         vm.startPrank(avsDirectoryOwner);
         OperatorSetUpgradeLib.upgrade(avsDirectory, address(avsDirectoryImpl));
@@ -211,7 +213,8 @@ contract OperatorSetUpgradeScript is Script {
             IAVSDirectory(avsDirectory),
             IRewardsCoordinator(rewardsCoordinator),
             IRegistryCoordinator(registryCoordinator),
-            IStakeRegistry(stakeRegistry)
+            IStakeRegistry(stakeRegistry),
+            IAllocationManager(allocationManager)
         ));
         address newRegistryCoordinatorImpl = address(new RegistryCoordinator(
             IServiceManager(serviceManager),

src/BLSSignatureChecker.sol

@@ -193,9 +193,11 @@ contract BLSSignatureChecker is IBLSSignatureChecker {
          */
         {
             bool _staleStakesForbidden = staleStakesForbidden;
-            uint256 withdrawalDelayBlocks = _staleStakesForbidden
-                ? delegation.minWithdrawalDelayBlocks()
-                : 0;
+            /// TODO: FIX
+            uint256 withdrawalDelayBlocks = 0;
+            // uint256 withdrawalDelayBlocks = _staleStakesForbidden
+                // ? delegation.minWithdrawalDelayBlocks()
+                // : 0;
 
             for (uint256 i = 0; i < quorumNumbers.length; i++) {
                 // If we're disallowing stale stake updates, check that each quorum's last update block

src/RegistryCoordinator.sol

@@ -3,7 +3,7 @@ pragma solidity ^0.8.12;
 
 import {IPauserRegistry} from "eigenlayer-contracts/src/contracts/interfaces/IPauserRegistry.sol";
 import {ISignatureUtils} from "eigenlayer-contracts/src/contracts/interfaces/ISignatureUtils.sol";
-import {IAVSDirectory} from "eigenlayer-contracts/src/contracts/interfaces/IAVSDirectory.sol";
+import {IAVSDirectory, OperatorSet} from "eigenlayer-contracts/src/contracts/interfaces/IAVSDirectory.sol";
 import {ISocketUpdater} from "./interfaces/ISocketUpdater.sol";
 import {IBLSApkRegistry} from "./interfaces/IBLSApkRegistry.sol";
 import {IStakeRegistry} from "./interfaces/IStakeRegistry.sol";
@@ -676,7 +676,7 @@ contract RegistryCoordinator is
             for (uint256 i = 0; i < quorumBytes.length; i++) {
                 /// We need to track forceDeregistrations so we don't pass an id that was already deregistered on the AVSDirectory
                 /// but hasnt yet been recorded in the middleware contracts
-                if (!avsDirectory.isMember(operator, IAVSDirectory.OperatorSet(address(serviceManager), uint8(quorumBytes[i])))){
+                if (!avsDirectory.isMember(operator, OperatorSet(address(serviceManager), uint8(quorumBytes[i])))){
                     forceDeregistrationCount++;
                 }
                 operatorSetIds[i] = uint8(quorumBytes[i]);
@@ -687,7 +687,7 @@ contract RegistryCoordinator is
                 uint32[] memory filteredOperatorSetIds = new uint32[](operatorSetIds.length - forceDeregistrationCount);
                 uint256 offset;
                 for (uint256 i; i < operatorSetIds.length; i++){
-                    if (avsDirectory.isMember(operator, IAVSDirectory.OperatorSet(address(serviceManager), operatorSetIds[i]))){
+                    if (avsDirectory.isMember(operator, OperatorSet(address(serviceManager), operatorSetIds[i]))){
                         filteredOperatorSetIds[i] = operatorSetIds[i+offset];
                     } else {
                         offset++;

src/ServiceManagerBase.sol

@@ -6,6 +6,7 @@ import {ISignatureUtils} from "eigenlayer-contracts/src/contracts/interfaces/ISi
 import {IAVSDirectory} from "eigenlayer-contracts/src/contracts/interfaces/IAVSDirectory.sol";
 import {IRewardsCoordinator} from
     "eigenlayer-contracts/src/contracts/interfaces/IRewardsCoordinator.sol";
+import {IAllocationManager} from "eigenlayer-contracts/src/contracts/interfaces/IAllocationManager.sol";
 
 import {ServiceManagerBaseStorage} from "./ServiceManagerBaseStorage.sol";
 import {IServiceManager} from "./interfaces/IServiceManager.sol";
@@ -38,36 +39,39 @@ abstract contract ServiceManagerBase is ServiceManagerBaseStorage {
         _;
     }
 
-    function _checkRewardsInitiator() internal view {
-        require(
-            msg.sender == rewardsInitiator,
-            "ServiceManagerBase.onlyRewardsInitiator: caller is not the rewards initiator"
-        );
+    /// @notice only slasher can call functions with this modifier
+    modifier onlySlasher() {
+        _checkSlasher();
+        _;
     }
 
     /// @notice Sets the (immutable) `_registryCoordinator` address
     constructor(
         IAVSDirectory __avsDirectory,
         IRewardsCoordinator __rewardsCoordinator,
         IRegistryCoordinator __registryCoordinator,
-        IStakeRegistry __stakeRegistry
+        IStakeRegistry __stakeRegistry,
+        IAllocationManager __allocationManager
     )
         ServiceManagerBaseStorage(
             __avsDirectory,
             __rewardsCoordinator,
             __registryCoordinator,
-            __stakeRegistry
+            __stakeRegistry,
+            __allocationManager
         )
     {
         _disableInitializers();
     }
 
     function __ServiceManagerBase_init(
         address initialOwner,
-        address _rewardsInitiator
+        address _rewardsInitiator,
+        address _slasher
     ) internal virtual onlyInitializing {
         _transferOwnership(initialOwner);
         _setRewardsInitiator(_rewardsInitiator);
+        _setSlasher(_slasher);
     }
 
     /**
@@ -79,6 +83,10 @@ abstract contract ServiceManagerBase is ServiceManagerBaseStorage {
         _avsDirectory.updateAVSMetadataURI(_metadataURI);
     }
 
+    function slashOperator(IAllocationManager.SlashingParams memory params) external onlySlasher {
+        _allocationManager.slashOperator(params);
+    }
+
     /**
      * @notice Creates a new rewards submission to the EigenLayer RewardsCoordinator contract, to be split amongst the
      * set of stakers delegated to operators who are registered to this `avs`
@@ -168,6 +176,15 @@ abstract contract ServiceManagerBase is ServiceManagerBaseStorage {
         _setRewardsInitiator(newRewardsInitiator);
     }
 
+    /**
+     * @notice Sets the slasher address
+     * @param newSlasher The new slasher address
+     * @dev only callable by the owner
+     */
+    function setSlasher(address newSlasher) external onlyOwner {
+        _setSlasher(newSlasher);
+    }
+
     /**
      * @notice Migrates the AVS to use operator sets and creates new operator set IDs.
      * @param operatorSetsToCreate An array of operator set IDs to create.
@@ -325,6 +342,11 @@ abstract contract ServiceManagerBase is ServiceManagerBaseStorage {
         rewardsInitiator = newRewardsInitiator;
     }
 
+    function _setSlasher(address newSlasher) internal {
+        emit SlasherUpdated(slasher, newSlasher);
+        slasher = newSlasher;
+    }
+
     /**
      * @notice Returns the list of strategies that the AVS supports for restaking
      * @dev This function is intended to be called off-chain
@@ -402,4 +424,19 @@ abstract contract ServiceManagerBase is ServiceManagerBaseStorage {
     function avsDirectory() external view override returns (address) {
         return address(_avsDirectory);
     }
+
+    function _checkRewardsInitiator() internal view {
+        require(
+            msg.sender == rewardsInitiator,
+            "ServiceManagerBase.onlyRewardsInitiator: caller is not the rewards initiator"
+        );
+    }
+
+
+    function _checkSlasher() internal view {
+        require(
+            msg.sender == slasher,
+            "ServiceManagerBase.onlySlasher: caller is not the slasher"
+        );
+    }
 }

src/ServiceManagerBaseStorage.sol

@@ -9,6 +9,7 @@ import {IStakeRegistry} from "./interfaces/IStakeRegistry.sol";
 
 import {IAVSDirectory} from "eigenlayer-contracts/src/contracts/interfaces/IAVSDirectory.sol";
 import {IRewardsCoordinator} from "eigenlayer-contracts/src/contracts/interfaces/IRewardsCoordinator.sol";
+import {IAllocationManager} from "eigenlayer-contracts/src/contracts/interfaces/IAllocationManager.sol";
 
 /**
  * @title Storage variables for the `ServiceManagerBase` contract.
@@ -25,6 +26,7 @@ abstract contract ServiceManagerBaseStorage is IServiceManager, OwnableUpgradeab
     IRewardsCoordinator internal immutable _rewardsCoordinator;
     IRegistryCoordinator internal immutable _registryCoordinator;
     IStakeRegistry internal immutable _stakeRegistry;
+    IAllocationManager internal immutable _allocationManager;
 
     /**
      *
@@ -35,21 +37,26 @@ abstract contract ServiceManagerBaseStorage is IServiceManager, OwnableUpgradeab
     /// @notice The address of the entity that can initiate rewards
     address public rewardsInitiator;
 
+    /// @notice The address of the slasher account
+    address public slasher;
+
     bool public migrationFinalized;
 
-    /// @notice Sets the (immutable) `_avsDirectory`, `_rewardsCoordinator`, `_registryCoordinator`, and `_stakeRegistry` addresses
+    /// @notice Sets the (immutable) `_avsDirectory`, `_rewardsCoordinator`, `_registryCoordinator`, `_stakeRegistry`, and `_allocationManager` addresses
     constructor(
         IAVSDirectory __avsDirectory,
         IRewardsCoordinator __rewardsCoordinator,
         IRegistryCoordinator __registryCoordinator,
-        IStakeRegistry __stakeRegistry
+        IStakeRegistry __stakeRegistry,
+        IAllocationManager __allocationManager
     ) {
         _avsDirectory = __avsDirectory;
         _rewardsCoordinator = __rewardsCoordinator;
         _registryCoordinator = __registryCoordinator;
         _stakeRegistry = __stakeRegistry;
+        _allocationManager = __allocationManager;
     }
 
     // storage gap for upgradeability
-    uint256[49] private __GAP;
+    uint256[48] private __GAP;
 }

src/StakeRegistry.sol

@@ -2,7 +2,7 @@
 pragma solidity ^0.8.12;
 
 import {IDelegationManager} from "eigenlayer-contracts/src/contracts/interfaces/IDelegationManager.sol";
-import {IAVSDirectory} from "eigenlayer-contracts/src/contracts/interfaces/IAVSDirectory.sol";
+import {IAVSDirectory, OperatorSet} from "eigenlayer-contracts/src/contracts/interfaces/IAVSDirectory.sol";
 import {IServiceManager} from "./interfaces/IServiceManager.sol";
 
 import {StakeRegistryStorage, IStrategy} from "./StakeRegistryStorage.sol";
@@ -182,7 +182,7 @@ contract StakeRegistry is StakeRegistryStorage {
             // Query the AVSDirectory to check if the operator is directly unregistered
             operatorRegistered = avsDirectory.isMember(
                 operator,
-                IAVSDirectory.OperatorSet(address(serviceManager), operatorSetId)
+                OperatorSet(address(serviceManager), operatorSetId)
             );
 
             if (!hasMinimumStake || (isOperatorSetAVS && !operatorRegistered)) {
@@ -491,7 +491,8 @@ contract StakeRegistry is StakeRegistryStorage {
         uint256 stratsLength = strategyParamsLength(quorumNumber);
         StrategyParams memory strategyAndMultiplier;
 
-        uint256[] memory strategyShares = delegation.getOperatorShares(operator, strategiesPerQuorum[quorumNumber]);
+        uint256[] memory strategyShares;
+        //  = delegation.getDelegatableShares(operator, strategiesPerQuorum[quorumNumber]);
         for (uint256 i = 0; i < stratsLength; i++) {
             // accessing i^th StrategyParams struct for the quorumNumber
             strategyAndMultiplier = strategyParams[quorumNumber][i];

src/interfaces/IServiceManager.sol

@@ -4,6 +4,7 @@ pragma solidity >=0.5.0;
 import {IRewardsCoordinator} from "eigenlayer-contracts/src/contracts/interfaces/IRewardsCoordinator.sol";
 import {IServiceManagerUI} from "./IServiceManagerUI.sol";
 import {ISignatureUtils} from "eigenlayer-contracts/src/contracts/interfaces/ISignatureUtils.sol";
+import {IAllocationManagerTypes} from "eigenlayer-contracts/src/contracts/interfaces/IAllocationManager.sol";
 
 /**
  * @title Minimal interface for a ServiceManager-type contract that forms the single point for an AVS to push updates to EigenLayer
@@ -23,7 +24,7 @@ interface IServiceManager is IServiceManagerUI {
      */
     function createAVSRewardsSubmission(IRewardsCoordinator.RewardsSubmission[] calldata rewardsSubmissions) external;
 
-    function createOperatorSets(uint32[] memory operatorSetIds) external ;
+    function createOperatorSets(uint32[] memory operatorSetIds) external;
 
     /**
      * @notice Forwards a call to EigenLayer's AVSDirectory contract to register an operator to operator sets
@@ -44,6 +45,9 @@ interface IServiceManager is IServiceManagerUI {
      */
     function deregisterOperatorFromOperatorSets(address operator, uint32[] calldata operatorSetIds) external;
 
+    function slashOperator(IAllocationManagerTypes.SlashingParams memory params) external;
+
     // EVENTS
     event RewardsInitiatorUpdated(address prevRewardsInitiator, address newRewardsInitiator);
+    event SlasherUpdated(address prevSlasher, address newSlasher);
 }

src/libraries/SignatureCheckerLib.sol

@@ -1,8 +1,7 @@
 // SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.12;
 
-import {EIP1271SignatureUtils} from
-    "eigenlayer-contracts/src/contracts/libraries/EIP1271SignatureUtils.sol";
+import "@openzeppelin-upgrades/contracts/utils/cryptography/SignatureCheckerUpgradeable.sol";
 
 /**
  * @title SignatureCheckerLib
@@ -11,6 +10,8 @@ import {EIP1271SignatureUtils} from
  * validation logic to this external library.
  */
 library SignatureCheckerLib {
+    error InvalidSignature();
+
     /**
      * @notice Validates a signature using EIP-1271 standard.
      * @param signer The address of the signer.
@@ -22,6 +23,8 @@ library SignatureCheckerLib {
         bytes32 digestHash,
         bytes memory signature
     ) external view {
-        EIP1271SignatureUtils.checkSignature_EIP1271(signer, digestHash, signature);
+        if (!SignatureCheckerUpgradeable.isValidSignatureNow(signer, digestHash, signature)) {
+            revert InvalidSignature();
+        }
     }
 }

src/slashers/Slasher.sol

@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: BUSL-1.1
+pragma solidity ^0.8.12;
+
+import {IStrategy} from "eigenlayer-contracts/src/contracts/interfaces/IStrategy.sol";
+import {SlasherBase} from "./SlasherBase.sol";
+
+contract Slasher is SlasherBase {
+    uint256 public nextRequestId;
+
+    function initialize(address _serviceManager) public initializer {
+        __SlasherBase_init(_serviceManager);
+    }
+
+    function fulfillSlashingRequest(
+        address operator,
+        uint32 operatorSetId,
+        IStrategy[] memory strategies,
+        uint256 wadToSlash,
+        string memory description
+    ) external virtual {
+        uint256 requestId = nextRequestId++;
+        _fulfillSlashingRequest(
+            operator,
+            operatorSetId,
+            strategies,
+            wadToSlash,
+            description
+        );
+        emit OperatorSlashed(requestId, operator, operatorSetId, strategies, wadToSlash, description);
+    }
+}