feat: stVaults #874
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feat: stVaults #874
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Slither found more than 20 potential problems in the proposed changes. Check the Files changed tab for more details.
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Hardhat Unit Tests Coverage SummaryDiff against masterResults for commit: 9bff349 Minimum allowed coverage is ♻️ This comment has been updated with latest results |
TheDZhon
reviewed
Nov 28, 2024
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| // Distribute protocol fee (treasury & node operators) | ||
| if (_update.sharesToMintAsFees > 0) { |
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this name might be misleading, should be named smth 'sharesToMintAsLidoV2ProtocolFees'
TheDZhon
reviewed
Nov 29, 2024
contracts/0.8.25/vaults/VaultHub.sol
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| import {AccessControlEnumerableUpgradeable} from "contracts/openzeppelin/5.0.2/upgradeable/access/extensions/AccessControlEnumerableUpgradeable.sol"; | ||
| import {IHubVault} from "./interfaces/IHubVault.sol"; | ||
| import {Math256} from "contracts/common/lib/Math256.sol"; | ||
| import {ILido as StETH} from "contracts/0.8.25/interfaces/ILido.sol"; |
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why this iface not in common?
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should revise iface structure in the future
contracts/0.8.25/vaults/VaultHub.sol
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| /// @notice disconnects a vault from the hub | ||
| /// @dev can be called by vaults only | ||
| function disconnectVault(address _vault) external { |
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let's add emergency flow
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let's consider the following cases:
- voluntary disconnect (this one)
- stop new minting
- eject and withdraw
- disconnect forcibly
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- disconnect and dust issue
contracts/0.8.25/vaults/VaultHub.sol
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| /// @param _reserveRatio minimum Reserve ratio in basis points | ||
| /// @param _reserveRatioThreshold reserve ratio that makes possible to force rebalance on the vault (in basis points) | ||
| /// @param _treasuryFeeBP treasury fee in basis points | ||
| function connectVault( |
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for permissionless addition:
- there could be a scenario when we adding a vault under slashing
folkyatina
reviewed
Nov 29, 2024
folkyatina
reviewed
Nov 29, 2024
folkyatina
reviewed
Nov 29, 2024
folkyatina
reviewed
Nov 29, 2024
contracts/0.8.25/vaults/VaultHub.sol
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| /// @notice force rebalance of the vault to have sufficient reserve ratio | ||
| /// @param _vault vault address | ||
| /// @dev can be used permissionlessly if the vault's min reserve ratio is broken | ||
| function forceRebalance(IHubVault _vault) external { |
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Embed auto-disconnect if resulting valuation is too small
folkyatina
reviewed
Nov 29, 2024
| ) internal { | ||
| _checkAccountingOracleReport(_contracts, _report, _pre, _update); | ||
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| uint256 lastWithdrawalRequestToFinalize; |
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Code scanning / Slither
Uninitialized local variables Medium
...acts/openzeppelin/5.0.2/upgradeable/access/extensions/AccessControlEnumerableUpgradeable.sol
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...acts/openzeppelin/5.0.2/upgradeable/access/extensions/AccessControlEnumerableUpgradeable.sol
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folkyatina
reviewed
Dec 3, 2024
folkyatina
reviewed
Dec 3, 2024
folkyatina
reviewed
Dec 3, 2024
TheDZhon
reviewed
Dec 4, 2024
contracts/0.8.25/vaults/VaultHub.sol
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| stETH.mintExternalShares(_recipient, sharesToMint); | ||
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| emit MintedStETHOnVault(_vault, _tokens); |
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need to disentangle events for each core operation later 🧠
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backward compatibility is needed for Subgraph
Jeday
reviewed
Dec 5, 2024
Jeday
reviewed
Dec 5, 2024
Jeday
reviewed
Dec 5, 2024
TheDZhon
reviewed
Dec 5, 2024
contracts/0.8.25/vaults/VaultHub.sol
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| // Lido curated validators could earn if vault's ETH was staked in Lido | ||
| // itself and minted as stETH shares | ||
| // | ||
| // treasuryFeeShares = value * lidoGrossAPR * treasuryFeeRate / preShareRate |
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| // treasuryFeeShares = value * lidoGrossAPR * treasuryFeeRate / preShareRate | |
| // treasuryFeeShares = chargeableValue * lidoGrossAPR * treasuryFeeRate / (_preTotalPooledEther / _preTotalShares) |
contracts/0.8.25/vaults/VaultHub.sol
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| } | ||
| } | ||
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| function _calculateLidoFees( |
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// @dev impossible to invoke this method under negative rebase
contracts/0.8.25/vaults/VaultHub.sol
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| // | ||
| // treasuryFeeShares = value * lidoGrossAPR * treasuryFeeRate / preShareRate | ||
| // lidoGrossAPR = postShareRateWithoutFees / preShareRate - 1 | ||
| // = value * (postShareRateWithoutFees / preShareRate - 1) * treasuryFeeRate / preShareRate |
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| // = value * (postShareRateWithoutFees / preShareRate - 1) * treasuryFeeRate / preShareRate | |
| // treasuryFeeShares = value * (postShareRateWithoutFees / preShareRate - 1) * treasuryFeeRate / preShareRate |
contracts/0.8.25/vaults/VaultHub.sol
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| chargeableValue); | ||
| uint256 treasuryFee = (potentialRewards * _socket.treasuryFeeBP) / BPS_BASE; | ||
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| treasuryFeeShares = (treasuryFee * _preTotalShares) / _preTotalPooledEther; |
| if (msg.value == 0) revert ZeroArgument("msg.value"); | ||
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| VaultStorage storage $ = _getVaultStorage(); | ||
| $.inOutDelta += SafeCast.toInt128(int256(msg.value)); |
| VaultStorage storage $ = _getVaultStorage(); | ||
| $.inOutDelta -= SafeCast.toInt128(int256(_ether)); | ||
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| (bool success, ) = _recipient.call{value: _ether}(""); |
| * @param _numberOfDeposits Number of 32 ETH deposits to make | ||
| * @param _pubkeys Validator public keys | ||
| * @param _signatures Validator signatures | ||
| * @dev Ensures vault is healthy and handles deposit logistics |
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Suggested change
| * @dev Ensures vault is healthy and handles deposit logistics | |
| * @dev Ensures vault is balanced and handles deposit logistics |
| * @param _validatorPublicKey Public key of validator to exit | ||
| */ | ||
| function requestValidatorExit(bytes calldata _validatorPublicKey) external onlyOwner { | ||
| emit ValidatorsExitRequest(msg.sender, _validatorPublicKey); |
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maybe make it compatible with ValidatorsExitBus and an ejector service
| VaultStorage storage $ = _getVaultStorage(); | ||
| $.inOutDelta -= SafeCast.toInt128(int256(_ether)); | ||
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| emit Withdrawn(msg.sender, msg.sender, _ether); |
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| emit Withdrawn(msg.sender, msg.sender, _ether); | |
| emit Withdrawn(msg.sender, VAULT_HUB, _ether); |
TheDZhon
reviewed
Dec 11, 2024
| return address(VAULT_HUB); | ||
| } | ||
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| receive() external payable { |
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This func accepts ether without updating valuation (and inOutDelta) and it's not possible to withdraw it back.
The more important thing is that while calling rebalance() it gets used to reduce inOutDelta allowing to underflow valuation()
| $.locked = SafeCast.toUint128(_locked); | ||
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| try IReportReceiver(owner()).onReport(_valuation, _inOutDelta, _locked) {} catch (bytes memory reason) { | ||
| emit OnReportFailed(address(this), reason); |
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| event Funded(address indexed sender, uint256 amount); | ||
| event Withdrawn(address indexed sender, address indexed recipient, uint256 amount); | ||
| event DepositedToBeaconChain(address indexed sender, uint256 deposits, uint256 amount); |
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maybe should target pectra (array of amounts)
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| event Locked(uint256 locked); | ||
| event Reported(address indexed vault, uint256 valuation, int256 inOutDelta, uint256 locked); | ||
| event OnReportFailed(address vault, bytes reason); |
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here have three different approaches:
- do not include the emitter contract (and it's fine indeed)
- include the address but indexed
- include non-indexed addr
let's use the first approach 🧠
| /** | ||
| * @dev Modifier to fund the staking vault if msg.value > 0 | ||
| */ | ||
| modifier fundAndProceed() { |
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| modifier fundAndProceed() { | |
| modifier prefundable() { |
| * @dev Transfers ownership of the staking vault to a new owner | ||
| * @param _newOwner Address of the new owner | ||
| */ | ||
| function _transferStVaultOwnership(address _newOwner) internal { |
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see the rename proposal above
| * @dev Requests the exit of a validator from the staking vault | ||
| * @param _validatorPublicKey Public key of the validator to exit | ||
| */ | ||
| function _requestValidatorExit(bytes calldata _validatorPublicKey) internal { |
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| // ==================== Errors ==================== | ||
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| /// @notice Error for zero address arguments |
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| /// @notice Error for zero address arguments | |
| /// @notice Error for zero value arguments |
| /// @notice Error when the withdrawable amount is insufficient. | ||
| /// @param withdrawable The amount that is withdrawable | ||
| /// @param requested The amount requested to withdraw | ||
| error InsufficientWithdrawableAmount(uint256 withdrawable, uint256 requested); |
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should have a view func to show withdrawable amount
for rebalance we also need a view to show what would happen
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this error should be moved to Delegation not being used here at all (it seems)
TheDZhon
reviewed
Dec 12, 2024
| // ==================== Constants ==================== | ||
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| uint256 private constant BP_BASE = 10000; // Basis points base (100%) | ||
| uint256 private constant MAX_FEE = BP_BASE; // Maximum fee in basis points (100%) |
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| * - vote on ownership transfer | ||
| * - vote on performance fee changes |
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maybe veto instead of approval (ET dynamics)
later
| * @notice Role for the Lido DAO. | ||
| * This can be the Lido DAO agent, EasyTrack or any other DAO decision-making system. | ||
| * Lido DAO can: | ||
| * - set the operator role |
| * Lido DAO can: | ||
| * - set the operator role | ||
| * - vote on ownership transfer | ||
| */ |
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what about VaultHub.connect?
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another issue: vault should express a WILL to connect (two-step)
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these comments might be not relevant to Delegation
| * Key master can: | ||
| * - deposit validators to the beacon chain | ||
| */ | ||
| bytes32 public constant KEY_MASTER_ROLE = keccak256("Vault.Delegation.KeyMasterRole"); |
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BEACON_CHAIN_DEPOSITOR_ROLE?
| function onReport(uint256 _valuation, int256 _inOutDelta, uint256 _locked) external { | ||
| if (msg.sender != address(stakingVault)) revert OnlyStVaultCanCallOnReportHook(); | ||
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| managementDue += (_valuation * managementFee) / 365 / BP_BASE; |
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timeElapsed (in case of missing reports e.g.)
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| int256 unlocked = int256(stakingVault.valuation()) - int256(stakingVault.locked()); | ||
| uint256 unreserved = unlocked >= 0 ? uint256(unlocked) : 0; |
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can query stakingVault.unlocked() instead
| modifier onlyIfVotedBy(bytes32[] memory _committee, uint256 _votingPeriod) { | ||
| bytes32 callId = keccak256(msg.data); | ||
| uint256 committeeSize = _committee.length; | ||
| uint256 votingStart = block.timestamp - _votingPeriod; |
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| uint256 votingStart = block.timestamp - _votingPeriod; | |
| uint256 votesVaildSince = block.timestamp - _votingPeriod; |
| // ==================== Events ==================== | ||
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| /// @notice Emitted when a role member votes on a function requiring committee approval. | ||
| event RoleMemberVoted(address member, bytes32 role, uint256 timestamp, bytes data); |
| /// @notice Emitted when a role member votes on a function requiring committee approval. | ||
| event RoleMemberVoted(address member, bytes32 role, uint256 timestamp, bytes data); | ||
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| // ==================== Errors ==================== |
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fees not covered with event changes
tamtamchik
added
solidity
TheDZhon
reviewed
Dec 13, 2024
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| uint256 managementFee; | ||
| uint256 performanceFee; |
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Suggested change
| uint256 managementFee; | |
| uint256 performanceFee; | |
| uint256 managementFeeBP; | |
| uint256 performanceFeeBP; |
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| pragma solidity 0.8.25; | ||
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| interface IDelegation { |
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why we don't import this interface though?
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let's add the comment that it's intended (to hook up the particular interface strictly)
| } | ||
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| contract VaultFactory is UpgradeableBeacon { | ||
| address public immutable delegationImpl; |
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Suggested change
| address public immutable delegationImpl; | |
| address public immutable DELEGATION_IMPL; |
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should think about disentangling the beacon and factory (from Azat)
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@loga4 (the problem is that it's impossible to upgrade the delegation for the factory)
| delegation.grantRole(delegation.LIDO_DAO_ROLE(), _lidoAgent); | ||
| delegation.grantRole(delegation.MANAGER_ROLE(), _initializationParams.manager); | ||
| delegation.grantRole(delegation.OPERATOR_ROLE(), _initializationParams.operator); | ||
| delegation.grantRole(delegation.DEFAULT_ADMIN_ROLE(), msg.sender); |
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scary though, let's add a comment that those roles above have their admins
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msg.sender and use input parameters instead to make the deployments automated without pain (suggested defaultAdmin above to replace msg.sender)
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| delegation.initialize(address(this), address(vault)); | ||
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| delegation.grantRole(delegation.LIDO_DAO_ROLE(), _lidoAgent); |
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maybe LIDO_AGENT should be immutable for the factory
| /// @notice Creates a new StakingVault and Delegation contracts | ||
| /// @param _stakingVaultParams The params of vault initialization | ||
| /// @param _initializationParams The params of vault initialization | ||
| function createVault( |
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Suggested change
| function createVault( | |
| function createVaultWithDelegation( |
| * @notice The term "fee" is used to express the fee percentage as basis points, e.g. 5%, | ||
| * while "due" is the actual amount of the fee, e.g. 1 ether | ||
| */ | ||
| contract Delegation is Dashboard, IReportReceiver { |
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Suggested change
| contract Delegation is Dashboard, IReportReceiver { | |
| contract Delegation is Dashboard, IReportReceiver, AssetRecoverer { |
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| emit VaultCreated(address(delegation), address(vault)); | ||
| emit DelegationCreated(msg.sender, address(delegation)); | ||
| } |
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🧠 role setup has dependencies on the Delegation internals which is not perfect
Merkle oracle integration
# Conflicts: # contracts/0.8.25/vaults/Dashboard.sol # contracts/0.8.25/vaults/Permissions.sol # contracts/0.8.25/vaults/VaultFactory.sol # contracts/0.8.25/vaults/interfaces/IStakingVault.sol # lib/protocol/helpers/index.ts # lib/protocol/helpers/vaults.ts # test/0.8.25/vaults/delegation/delegation.test.ts # test/0.8.25/vaults/staking-vault/stakingVault.test.ts # test/0.8.25/vaults/vaultFactory.test.ts # test/0.8.25/vaults/vaulthub/vaulthub.detach.test.ts # test/0.8.9/accounting.handleOracleReport.test.ts # test/integration/vaults/happy-path.integration.ts # test/integration/vaults/roles.integration.ts
feat: added permissions for new actions and unit tests
…ts and update tests
feat: rebalance shortfall
# Conflicts: # contracts/0.8.25/vaults/StakingVault.sol
Getter for latest report on the VaultHub
feat: partial force rebalance
feat: bump AO version and report consensus version and remove legacy oracle godspeed
feat: sync vaults triggerable withdrawals with latest lib version
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❗ 🚧 Under construction 🚧 ❗
Staking Vaults
New way of isolated staking, through separate vaults, with optional stETH liquidity