Uptime e2e

contracts/validator-manager/PoSValidatorManager.sol

@@ -57,6 +57,8 @@ abstract contract PoSValidatorManager is
         uint256 _weightToValueFactor;
         /// @notice The reward calculator for this validator manager.
         IRewardCalculator _rewardCalculator;
+        /// @notice The ID of the blockchain that submits uptime proofs. This must be a blockchain validated by the subnetID that this contract manages.
+        bytes32 _uptimeBlockchainID;
         /// @notice Maps the validation ID to its requirements.
         mapping(bytes32 validationID => PoSValidatorInfo) _posValidatorInfo;
         /// @notice Maps the delegation ID to the delegator information.
@@ -92,6 +94,7 @@ abstract contract PoSValidatorManager is
     error ValidatorIneligibleForRewards(bytes32 validationID);
     error DelegatorIneligibleForRewards(bytes32 delegationID);
     error ZeroWeightToValueFactor();
+    error InvalidUptimeBlockchainID(bytes32 uptimeBlockchainID);
 
     // solhint-disable ordering
     function _getPoSValidatorManagerStorage()
@@ -119,7 +122,8 @@ abstract contract PoSValidatorManager is
             minimumDelegationFeeBips: settings.minimumDelegationFeeBips,
             maximumStakeMultiplier: settings.maximumStakeMultiplier,
             weightToValueFactor: settings.weightToValueFactor,
-            rewardCalculator: settings.rewardCalculator
+            rewardCalculator: settings.rewardCalculator,
+            uptimeBlockchainID: settings.uptimeBlockchainID
         });
     }
 
@@ -131,7 +135,8 @@ abstract contract PoSValidatorManager is
         uint16 minimumDelegationFeeBips,
         uint8 maximumStakeMultiplier,
         uint256 weightToValueFactor,
-        IRewardCalculator rewardCalculator
+        IRewardCalculator rewardCalculator,
+        bytes32 uptimeBlockchainID
     ) internal onlyInitializing {
         PoSValidatorManagerStorage storage $ = _getPoSValidatorManagerStorage();
         if (minimumDelegationFeeBips == 0 || minimumDelegationFeeBips > MAXIMUM_DELEGATION_FEE_BIPS)
@@ -152,6 +157,9 @@ abstract contract PoSValidatorManager is
         if (weightToValueFactor == 0) {
             revert ZeroWeightToValueFactor();
         }
+        if (uptimeBlockchainID == bytes32(0)) {
+            revert InvalidUptimeBlockchainID(uptimeBlockchainID);
+        }
 
         $._minimumStakeAmount = minimumStakeAmount;
         $._maximumStakeAmount = maximumStakeAmount;
@@ -160,6 +168,7 @@ abstract contract PoSValidatorManager is
         $._maximumStakeMultiplier = maximumStakeMultiplier;
         $._weightToValueFactor = weightToValueFactor;
         $._rewardCalculator = rewardCalculator;
+        $._uptimeBlockchainID = uptimeBlockchainID;
     }
 
     /**
@@ -311,9 +320,17 @@ abstract contract PoSValidatorManager is
             revert InvalidWarpMessage();
         }
 
-        if (warpMessage.sourceChainID != WARP_MESSENGER.getBlockchainID()) {
+        PoSValidatorManagerStorage storage $ = _getPoSValidatorManagerStorage();
+        // The uptime proof must be from the specifed uptime blockchain
+        if (warpMessage.sourceChainID != $._uptimeBlockchainID) {
             revert InvalidWarpSourceChainID(warpMessage.sourceChainID);
         }
+
+        // The sender is required to be the zero address so that we know the validator node
+        // signed the proof directly, rather than as an arbitrary on-chain message
+        if (warpMessage.originSenderAddress != address(0)) {
+            revert InvalidWarpOriginSenderAddress(warpMessage.originSenderAddress);
+        }
         if (warpMessage.originSenderAddress != address(0)) {
             revert InvalidWarpOriginSenderAddress(warpMessage.originSenderAddress);
         }
@@ -324,7 +341,6 @@ abstract contract PoSValidatorManager is
             revert InvalidValidationID(validationID);
         }
 
-        PoSValidatorManagerStorage storage $ = _getPoSValidatorManagerStorage();
         if (uptime > $._posValidatorInfo[validationID].uptimeSeconds) {
             $._posValidatorInfo[validationID].uptimeSeconds = uptime;
             emit UptimeUpdated(validationID, uptime);

contracts/validator-manager/README.md

@@ -60,7 +60,7 @@ Proof-of-Authority validator management is provided via `PoAValidatorManager`, w
 
 ### PoSValidatorManager
 
-Proof-of-Stake validator management is provided by the abstract contract `PoSValidatorManager`, which has two concrete implementations: `NativeTokenStakingManager` and `ERC20TokenStakingManager`. In addition to basic validator management provided in `ValidatorManager`, `PoSValidatorManager` supports uptime-based validation rewards, as well as delegation to a chosen validator. This [state transition diagram](./StateTransition.md) illustrates the relationship between validators and delegators.
+Proof-of-Stake validator management is provided by the abstract contract `PoSValidatorManager`, which has two concrete implementations: `NativeTokenStakingManager` and `ERC20TokenStakingManager`. In addition to basic validator management provided in `ValidatorManager`, `PoSValidatorManager` supports uptime-based validation rewards, as well as delegation to a chosen validator. The `uptimeBlockchainID` used to initialize the `PoSValidatorManager` **must** be validated by the L1 validator set that the contract manages. **There is no way to verify this from within the contract, so take care when setting this value.** This [state transition diagram](./StateTransition.md) illustrates the relationship between validators and delegators.
 
 > [!NOTE]
 > The `weightToValueFactor` fields of the `PoSValidatorManagerSettings` passed to `PoSValidatorManager`'s `initialize` function sets the factor used to convert between the weight that the validator is registered with on the P-Chain, and the value transferred to the contract as stake. This involves integer division, which may result in loss of precision. When selecting `weightToValueFactor`, it's important to make the following considerations:

contracts/validator-manager/UptimeMessageSpec.md

@@ -1,6 +1,6 @@
 # `ValidationUptimeMessage` Warp Message Format Reference
 
-Description: Provides a validator's uptime for calculating staking rewards
+Description: Provides a validator's uptime for calculating staking rewards (`PoSValidatorManager` only)
 
 Signed by: L1
 
@@ -16,4 +16,4 @@ Specification:
 |       `uptime` |   `uint64` |   8 byte |
 |                |            | 46 bytes |
 
-This is defined within `Subnet-EVM` [here](https://github.com/ava-labs/subnet-evm/blob/323eb0c7dd7204521e662a3a355fe78a0e19c0be/warp/messages/validator_uptime.go#L14-L19).
+This is defined within `Subnet-EVM` [here](https://github.com/ava-labs/subnet-evm/blob/323eb0c7dd7204521e662a3a355fe78a0e19c0be/warp/messages/validator_uptime.go#L14-L19). The `ValidationUptimeMessage` must be included as an `AddressedPayload` with the `sourceAddress` set to an empty byte array, to prove that it did not originate as an arbitrary on-chain message. The `sourceChainID` must match the `uptimeBlockchainID` used to initialize the `PoSValidatorManager`. `uptimeBlockchainID` must be validated by the L1 validator set managed by the `PoSValidatorManager`.

contracts/validator-manager/interfaces/IPoSValidatorManager.sol

@@ -19,7 +19,18 @@ enum DelegatorStatus {
 }
 
 /**
- * @dev PoS Validator Manager settings, used to initialize the PoS Validator Manager
+ * @notice PoS Validator Manager settings, used to initialize the PoS Validator Manager
+ * @notice baseSettings specified the base settings for the Validator Manager. See {IValidatorManager-ValidatorManagerSettings}
+ * @notice minimumStakeAmount is the minimum amount of stake required to stake to a validator
+ * @notice maximumStakeAmount is the maximum amount of stake that can be staked to a validator
+ * @notice minimumStakeDuration is the minimum duration that validators must stake for
+ * @notice minimumDelegationFeeBips is the minimum delegation fee in basis points that validators can charge
+ * @notice maximumStakeMultiplier is  multiplier applied to validator's initial stake amount to determine
+ * the maximum amount of stake a validator can have with delegations.
+ * @notice weightToValueFactor is the factor used to convert validator weight to value
+ * @notice rewardCalculator is the reward calculator used to calculate rewards for this validator manager
+ * @notice uptimeBlockchainID is the ID of the blockchain that submits uptime proofs.
+ * This must be a blockchain validated by the subnetID that this contract manages.
  */
 struct PoSValidatorManagerSettings {
     ValidatorManagerSettings baseSettings;
@@ -30,6 +41,7 @@ struct PoSValidatorManagerSettings {
     uint8 maximumStakeMultiplier;
     uint256 weightToValueFactor;
     IRewardCalculator rewardCalculator;
+    bytes32 uptimeBlockchainID;
 }
 
 /**

contracts/validator-manager/interfaces/IValidatorManager.sol

@@ -50,7 +50,10 @@ struct ValidatorChurnPeriod {
 }
 
 /**
- * @dev Validator Manager settings, used to initialize the Validator Manager
+ * @notice Validator Manager settings, used to initialize the Validator Manager
+ * @notice The subnetID is the ID of the subnet that the Validator Manager is managing
+ * @notice The churnPeriodSeconds is the duration of the churn period in seconds
+ * @notice The maximumChurnPercentage is the maximum percentage of the total weight that can be added or removed in a single churn period
  */
 struct ValidatorManagerSettings {
     bytes32 subnetID;

contracts/validator-manager/tests/ERC20TokenStakingManagerTests.t.sol

@@ -56,7 +56,8 @@ contract ERC20TokenStakingManagerTest is PoSValidatorManagerTest {
                 minimumDelegationFeeBips: 0,
                 maximumStakeMultiplier: DEFAULT_MAXIMUM_STAKE_MULTIPLIER,
                 weightToValueFactor: DEFAULT_WEIGHT_TO_VALUE_FACTOR,
-                rewardCalculator: IRewardCalculator(address(0))
+                rewardCalculator: IRewardCalculator(address(0)),
+                uptimeBlockchainID: DEFAULT_SOURCE_BLOCKCHAIN_ID
             }),
             token
         );
@@ -83,7 +84,8 @@ contract ERC20TokenStakingManagerTest is PoSValidatorManagerTest {
                 minimumDelegationFeeBips: minimumDelegationFeeBips,
                 maximumStakeMultiplier: DEFAULT_MAXIMUM_STAKE_MULTIPLIER,
                 weightToValueFactor: DEFAULT_WEIGHT_TO_VALUE_FACTOR,
-                rewardCalculator: IRewardCalculator(address(0))
+                rewardCalculator: IRewardCalculator(address(0)),
+                uptimeBlockchainID: DEFAULT_SOURCE_BLOCKCHAIN_ID
             }),
             token
         );
@@ -109,7 +111,8 @@ contract ERC20TokenStakingManagerTest is PoSValidatorManagerTest {
                 minimumDelegationFeeBips: DEFAULT_MINIMUM_DELEGATION_FEE_BIPS,
                 maximumStakeMultiplier: DEFAULT_MAXIMUM_STAKE_MULTIPLIER,
                 weightToValueFactor: DEFAULT_WEIGHT_TO_VALUE_FACTOR,
-                rewardCalculator: IRewardCalculator(address(0))
+                rewardCalculator: IRewardCalculator(address(0)),
+                uptimeBlockchainID: DEFAULT_SOURCE_BLOCKCHAIN_ID
             }),
             token
         );
@@ -133,7 +136,8 @@ contract ERC20TokenStakingManagerTest is PoSValidatorManagerTest {
                 minimumDelegationFeeBips: DEFAULT_MINIMUM_DELEGATION_FEE_BIPS,
                 maximumStakeMultiplier: 0,
                 weightToValueFactor: DEFAULT_WEIGHT_TO_VALUE_FACTOR,
-                rewardCalculator: IRewardCalculator(address(0))
+                rewardCalculator: IRewardCalculator(address(0)),
+                uptimeBlockchainID: DEFAULT_SOURCE_BLOCKCHAIN_ID
             }),
             token
         );
@@ -160,7 +164,8 @@ contract ERC20TokenStakingManagerTest is PoSValidatorManagerTest {
                 minimumDelegationFeeBips: DEFAULT_MINIMUM_DELEGATION_FEE_BIPS,
                 maximumStakeMultiplier: DEFAULT_MAXIMUM_STAKE_MULTIPLIER,
                 weightToValueFactor: DEFAULT_WEIGHT_TO_VALUE_FACTOR,
-                rewardCalculator: IRewardCalculator(address(0))
+                rewardCalculator: IRewardCalculator(address(0)),
+                uptimeBlockchainID: DEFAULT_SOURCE_BLOCKCHAIN_ID
             }),
             token
         );
@@ -187,7 +192,8 @@ contract ERC20TokenStakingManagerTest is PoSValidatorManagerTest {
                 minimumDelegationFeeBips: DEFAULT_MINIMUM_DELEGATION_FEE_BIPS,
                 maximumStakeMultiplier: maximumStakeMultiplier,
                 weightToValueFactor: DEFAULT_WEIGHT_TO_VALUE_FACTOR,
-                rewardCalculator: IRewardCalculator(address(0))
+                rewardCalculator: IRewardCalculator(address(0)),
+                uptimeBlockchainID: DEFAULT_SOURCE_BLOCKCHAIN_ID
             }),
             token
         );
@@ -211,7 +217,8 @@ contract ERC20TokenStakingManagerTest is PoSValidatorManagerTest {
                 minimumDelegationFeeBips: DEFAULT_MINIMUM_DELEGATION_FEE_BIPS,
                 maximumStakeMultiplier: DEFAULT_MAXIMUM_STAKE_MULTIPLIER,
                 weightToValueFactor: 0,
-                rewardCalculator: IRewardCalculator(address(0))
+                rewardCalculator: IRewardCalculator(address(0)),
+                uptimeBlockchainID: DEFAULT_SOURCE_BLOCKCHAIN_ID
             }),
             token
         );
@@ -315,7 +322,8 @@ contract ERC20TokenStakingManagerTest is PoSValidatorManagerTest {
                 minimumDelegationFeeBips: DEFAULT_MINIMUM_DELEGATION_FEE_BIPS,
                 maximumStakeMultiplier: DEFAULT_MAXIMUM_STAKE_MULTIPLIER,
                 weightToValueFactor: DEFAULT_WEIGHT_TO_VALUE_FACTOR,
-                rewardCalculator: rewardCalculator
+                rewardCalculator: rewardCalculator,
+                uptimeBlockchainID: DEFAULT_SOURCE_BLOCKCHAIN_ID
             }),
             token
         );

contracts/validator-manager/tests/NativeTokenStakingManagerTests.t.sol

@@ -51,7 +51,8 @@ contract NativeTokenStakingManagerTest is PoSValidatorManagerTest {
                 minimumDelegationFeeBips: 0,
                 maximumStakeMultiplier: DEFAULT_MAXIMUM_STAKE_MULTIPLIER,
                 weightToValueFactor: DEFAULT_WEIGHT_TO_VALUE_FACTOR,
-                rewardCalculator: IRewardCalculator(address(0))
+                rewardCalculator: IRewardCalculator(address(0)),
+                uptimeBlockchainID: DEFAULT_SOURCE_BLOCKCHAIN_ID
             })
         );
     }
@@ -77,7 +78,8 @@ contract NativeTokenStakingManagerTest is PoSValidatorManagerTest {
                 minimumDelegationFeeBips: minimumDelegationFeeBips,
                 maximumStakeMultiplier: DEFAULT_MAXIMUM_STAKE_MULTIPLIER,
                 weightToValueFactor: DEFAULT_WEIGHT_TO_VALUE_FACTOR,
-                rewardCalculator: IRewardCalculator(address(0))
+                rewardCalculator: IRewardCalculator(address(0)),
+                uptimeBlockchainID: DEFAULT_SOURCE_BLOCKCHAIN_ID
             })
         );
     }
@@ -102,7 +104,8 @@ contract NativeTokenStakingManagerTest is PoSValidatorManagerTest {
                 minimumDelegationFeeBips: DEFAULT_MINIMUM_DELEGATION_FEE_BIPS,
                 maximumStakeMultiplier: DEFAULT_MAXIMUM_STAKE_MULTIPLIER,
                 weightToValueFactor: DEFAULT_WEIGHT_TO_VALUE_FACTOR,
-                rewardCalculator: IRewardCalculator(address(0))
+                rewardCalculator: IRewardCalculator(address(0)),
+                uptimeBlockchainID: DEFAULT_SOURCE_BLOCKCHAIN_ID
             })
         );
     }
@@ -125,7 +128,8 @@ contract NativeTokenStakingManagerTest is PoSValidatorManagerTest {
                 minimumDelegationFeeBips: DEFAULT_MINIMUM_DELEGATION_FEE_BIPS,
                 maximumStakeMultiplier: 0,
                 weightToValueFactor: DEFAULT_WEIGHT_TO_VALUE_FACTOR,
-                rewardCalculator: IRewardCalculator(address(0))
+                rewardCalculator: IRewardCalculator(address(0)),
+                uptimeBlockchainID: DEFAULT_SOURCE_BLOCKCHAIN_ID
             })
         );
     }
@@ -151,7 +155,8 @@ contract NativeTokenStakingManagerTest is PoSValidatorManagerTest {
                 minimumDelegationFeeBips: DEFAULT_MINIMUM_DELEGATION_FEE_BIPS,
                 maximumStakeMultiplier: maximumStakeMultiplier,
                 weightToValueFactor: DEFAULT_WEIGHT_TO_VALUE_FACTOR,
-                rewardCalculator: IRewardCalculator(address(0))
+                rewardCalculator: IRewardCalculator(address(0)),
+                uptimeBlockchainID: DEFAULT_SOURCE_BLOCKCHAIN_ID
             })
         );
     }
@@ -174,7 +179,8 @@ contract NativeTokenStakingManagerTest is PoSValidatorManagerTest {
                 minimumDelegationFeeBips: DEFAULT_MINIMUM_DELEGATION_FEE_BIPS,
                 maximumStakeMultiplier: DEFAULT_MAXIMUM_STAKE_MULTIPLIER,
                 weightToValueFactor: 0,
-                rewardCalculator: IRewardCalculator(address(0))
+                rewardCalculator: IRewardCalculator(address(0)),
+                uptimeBlockchainID: DEFAULT_SOURCE_BLOCKCHAIN_ID
             })
         );
     }
@@ -200,7 +206,8 @@ contract NativeTokenStakingManagerTest is PoSValidatorManagerTest {
                 minimumDelegationFeeBips: DEFAULT_MINIMUM_DELEGATION_FEE_BIPS,
                 maximumStakeMultiplier: DEFAULT_MAXIMUM_STAKE_MULTIPLIER,
                 weightToValueFactor: DEFAULT_WEIGHT_TO_VALUE_FACTOR,
-                rewardCalculator: IRewardCalculator(address(0))
+                rewardCalculator: IRewardCalculator(address(0)),
+                uptimeBlockchainID: DEFAULT_SOURCE_BLOCKCHAIN_ID
             })
         );
     }
@@ -282,7 +289,8 @@ contract NativeTokenStakingManagerTest is PoSValidatorManagerTest {
                 minimumDelegationFeeBips: DEFAULT_MINIMUM_DELEGATION_FEE_BIPS,
                 maximumStakeMultiplier: DEFAULT_MAXIMUM_STAKE_MULTIPLIER,
                 weightToValueFactor: DEFAULT_WEIGHT_TO_VALUE_FACTOR,
-                rewardCalculator: rewardCalculator
+                rewardCalculator: rewardCalculator,
+                uptimeBlockchainID: DEFAULT_SOURCE_BLOCKCHAIN_ID
             })
         );
         validatorManager = app;