Components for running a validator node and monitoring validator behavior
mapping (address => Holder) public holders;
// -- snip --
struct Holder {
uint256 availableAmount;
uint256 lockedUntilBlocktimestamp;
}
// -- snip --
// in the constructor
addHolding(0x120470000000000000000000000000000000000a, 10000000000000000000000000, 1564509540);event ReportedMalicious(address indexed reporter, address indexed reported, uint indexed blocknum);
event ReportedBenign(address indexed reporter, address indexed reported, uint indexed blocknum);event ChangeFinalized(address[] validatorSet);
event NewRelay(address indexed relay);event NewRelayed(address indexed old, address indexed current);[
{
"constant": false,
"inputs": [],
"name": "finalizeChange",
"outputs": [],
"payable": false,
"type": "function"
},
{
"constant": true,
"inputs": [],
"name": "getValidators",
"outputs": [
{
"name": "_validators",
"type": "address[]"
}
],
"payable": false,
"type": "function"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"name": "_parent_hash",
"type": "bytes32"
},
{
"indexed": false,
"name": "_new_set",
"type": "address[]"
}
],
"name": "InitiateChange",
"type": "event"
}
]pragma solidity 0.5.8;
import "../misc/Ownable.sol";
import "../interfaces/IValidatorSetRelay.sol";
import "../interfaces/IValidatorSet.sol";
import "../interfaces/IValidatorSetRelayed.sol";
/// @title Validator Set Relay contract
/// @notice This owned contract is present in the chainspec file. The Relay contract
/// relays the function calls to a logic contract called Relayed for upgradeability
contract ValidatorSetRelay is IValidatorSet, IValidatorSetRelay, Ownable {
/// System address, used by the block sealer
/// Not constant cause it is changed for testing
address public systemAddress = 0xffffFFFfFFffffffffffffffFfFFFfffFFFfFFfE;
/// Address of the inner validator set contract
IValidatorSetRelayed public relayedSet;
/// Emitted in case a new Relayed contract is set
event NewRelayed(address indexed old, address indexed current);
modifier nonDefaultAddress(address _address) {
require(_address != address(0), "Address cannot be 0x0");
_;
}
modifier onlySystem() {
require(msg.sender == systemAddress, "Sender is not system");
_;
}
modifier onlyRelayed() {
require(msg.sender == address(relayedSet), "Sender is not the Relayed contract");
_;
}
constructor(address _owner, address _relayedSet)
public
{
_transferOwnership(_owner);
_setRelayed(_relayedSet);
}
/// @notice This function is used by the Relayed logic contract
/// to iniate a change in the active validator set
/// @dev emits `InitiateChange` which is listened by the Parity client
/// @param _parentHash Blockhash of the parent block
/// @param _newSet List of addresses of the desired active validator set
/// @return True if event was emitted
function callbackInitiateChange(bytes32 _parentHash, address[] calldata _newSet)
external
onlyRelayed
returns (bool)
{
emit InitiateChange(_parentHash, _newSet);
return true;
}
/// @notice Finalizes changes of the active validator set.
/// Called by SYSTEM
function finalizeChange()
external
onlySystem
{
relayedSet.finalizeChange();
}
/// @notice This function is used by validators to submit Benign reports
/// on other validators. Can only be called by the validator who submits
/// the report
/// @dev emits `ReportedBenign` event in the Relayed logic contract
/// @param _validator The validator to report
/// @param _blockNumber The blocknumber to report on
function reportBenign(address _validator, uint256 _blockNumber)
external
{
relayedSet.reportBenign(
msg.sender,
_validator,
_blockNumber
);
}
/// @notice This function is used by validators to submit Malicious reports
/// on other validators. Can only be called by the validator who submits
/// the report
/// @dev emits `ReportedMalicious` event in the Relayed logic contract
/// @param _validator The validator to report
/// @param _blockNumber The blocknumber to report on
/// @param _proof Proof to submit. Right now it is not used for anything
function reportMalicious(address _validator, uint256 _blockNumber, bytes calldata _proof)
external
{
relayedSet.reportMalicious(
msg.sender,
_validator,
_blockNumber,
_proof
);
}
/// @notice Sets the Relayed logic contract address. Only callable by the owner.
/// The address is assumed to belong to a contract that implements the
/// `IValidatorSetRelayed` interface
/// @param _relayedSet The contract address
function setRelayed(address _relayedSet)
external
onlyOwner
{
_setRelayed(_relayedSet);
}
/// @notice Returns the currently active validators
/// @return The list of addresses of currently active validators
function getValidators()
external
view
returns (address[] memory)
{
return relayedSet.getValidators();
}
/// @dev The actual logic of setting the Relayed contract
function _setRelayed(address _relayedSet)
private
nonDefaultAddress(_relayedSet)
{
require(
_relayedSet != address(relayedSet),
"New relayed contract address cannot be the same as the current one"
);
address oldRelayed = address(relayedSet);
relayedSet = IValidatorSetRelayed(_relayedSet);
emit NewRelayed(oldRelayed, _relayedSet);
}
}
