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Contract Name:
OmniPortal
Compiler Version
v0.8.24+commit.e11b9ed9
Optimization Enabled:
Yes with 200 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: GPL-3.0-only
pragma solidity =0.8.24;
import { OwnableUpgradeable } from "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import { ReentrancyGuardUpgradeable } from "@openzeppelin/contracts-upgradeable/utils/ReentrancyGuardUpgradeable.sol";
import { ExcessivelySafeCall } from "@nomad-xyz/excessively-safe-call/src/ExcessivelySafeCall.sol";
import { IFeeOracle } from "../interfaces/IFeeOracle.sol";
import { IOmniPortal } from "../interfaces/IOmniPortal.sol";
import { IOmniPortalSys } from "../interfaces/IOmniPortalSys.sol";
import { IOmniPortalAdmin } from "../interfaces/IOmniPortalAdmin.sol";
import { XBlockMerkleProof } from "../libraries/XBlockMerkleProof.sol";
import { XTypes } from "../libraries/XTypes.sol";
import { Quorum } from "../libraries/Quorum.sol";
import { ConfLevel } from "../libraries/ConfLevel.sol";
import { PausableUpgradeable } from "../utils/Pausable.sol";
import { OmniPortalConstants } from "./OmniPortalConstants.sol";
import { OmniPortalStorage } from "./OmniPortalStorage.sol";
contract OmniPortal is
IOmniPortal,
IOmniPortalSys,
IOmniPortalAdmin,
OwnableUpgradeable,
PausableUpgradeable,
ReentrancyGuardUpgradeable,
OmniPortalConstants,
OmniPortalStorage
{
using ExcessivelySafeCall for address;
/**
* @notice Modifier the requires an action is not paused. An action is paused if:
* - actionId is paused for all chains
* - actionId is paused for chainId
* - All actions are paused
* Available actions are ActionXCall and ActionXSubmit, defined in OmniPortalConstants.sol.
*/
modifier whenNotPaused(bytes32 actionId, uint64 chainId_) {
require(!_isPaused(actionId, _chainActionId(actionId, chainId_)), "OmniPortal: paused");
_;
}
/**
* @notice Construct the OmniPortal contract
*/
constructor() {
_disableInitializers();
}
/**
* @notice Initialization init params
* @dev Used to reduce stack depth in initialize()
* @custom:field owner The owner of the contract
* @custom:field feeOracle Address of the fee oracle contract
* @custom:field omniChainId Chain ID of Omni's EVM execution chain
* @custom:field omniCChainId Chain ID of Omni's consensus chain
* @custom:field xmsgMaxGasLimit Maximum gas limit for xmsg
* @custom:field xmsgMinGasLimit Minimum gas limit for xmsg
* @custom:field xmsgMaxDataSize Maximum size of xmsg data in bytes
* @custom:field xreceiptMaxErrorSize Maximum size of xreceipt error in bytes
* @custom:field xsubValsetCutoff Number of validator sets since the latest that validate an XSubmission
* @custom:field cChainXMsgOffset Offset for xmsgs from the consensus chain
* @custom:field cChainXBlockOffset Offset for xblocks from the consensus chain
* @custom:field valSetId Initial validator set id
* @custom:field validators Initial validator set
*/
struct InitParams {
address owner;
address feeOracle;
uint64 omniChainId;
uint64 omniCChainId;
uint64 xmsgMaxGasLimit;
uint64 xmsgMinGasLimit;
uint16 xmsgMaxDataSize;
uint16 xreceiptMaxErrorSize;
uint8 xsubValsetCutoff;
uint64 cChainXMsgOffset;
uint64 cChainXBlockOffset;
uint64 valSetId;
XTypes.Validator[] validators;
}
/**
* @notice Initialize the OmniPortal contract
*/
function initialize(InitParams calldata p) public initializer {
__Ownable_init(p.owner);
_setFeeOracle(p.feeOracle);
_setXMsgMaxGasLimit(p.xmsgMaxGasLimit);
_setXMsgMinGasLimit(p.xmsgMinGasLimit);
_setXMsgMaxDataSize(p.xmsgMaxDataSize);
_setXReceiptMaxErrorSize(p.xreceiptMaxErrorSize);
_setXSubValsetCutoff(p.xsubValsetCutoff);
_addValidatorSet(p.valSetId, p.validators);
omniChainId = p.omniChainId;
omniCChainId = p.omniCChainId;
// omni consensus chain uses Finalised+Broadcast shard
uint64 omniCShard = ConfLevel.toBroadcastShard(ConfLevel.Finalized);
inXMsgOffset[p.omniCChainId][omniCShard] = p.cChainXMsgOffset;
inXBlockOffset[p.omniCChainId][omniCShard] = p.cChainXBlockOffset;
}
function chainId() public view returns (uint64) {
return uint64(block.chainid);
}
//////////////////////////////////////////////////////////////////////////////
// Outbound xcall functions //
//////////////////////////////////////////////////////////////////////////////
/**
* @notice Call a contract on another chain.
* @param destChainId Destination chain ID
* @param conf Confirmation level
* @param to Address of contract to call on destination chain
* @param data ABI Encoded function calldata
* @param gasLimit Execution gas limit, enforced on destination chain
*/
function xcall(uint64 destChainId, uint8 conf, address to, bytes calldata data, uint64 gasLimit)
external
payable
whenNotPaused(ActionXCall, destChainId)
{
require(isSupportedDest[destChainId], "OmniPortal: unsupported dest");
require(to != VirtualPortalAddress, "OmniPortal: no portal xcall");
require(gasLimit <= xmsgMaxGasLimit, "OmniPortal: gasLimit too high");
require(gasLimit >= xmsgMinGasLimit, "OmniPortal: gasLimit too low");
require(data.length <= xmsgMaxDataSize, "OmniPortal: data too large");
// conf level will always be first byte of shardId. for now, shardId is just conf level
uint64 shardId = uint64(conf);
require(isSupportedShard[shardId], "OmniPortal: unsupported shard");
uint256 fee = feeFor(destChainId, data, gasLimit);
require(msg.value >= fee, "OmniPortal: insufficient fee");
outXMsgOffset[destChainId][shardId] += 1;
emit XMsg(destChainId, shardId, outXMsgOffset[destChainId][shardId], msg.sender, to, data, gasLimit, fee);
}
/**
* @notice Calculate the fee for calling a contract on another chain
* Fees denominated in wei.
* @param destChainId Destination chain ID
* @param data Encoded function calldata
* @param gasLimit Execution gas limit, enforced on destination chain
*/
function feeFor(uint64 destChainId, bytes calldata data, uint64 gasLimit) public view returns (uint256) {
return IFeeOracle(feeOracle).feeFor(destChainId, data, gasLimit);
}
//////////////////////////////////////////////////////////////////////////////
// Inbound xcall functions //
//////////////////////////////////////////////////////////////////////////////
/**
* @notice Submit a batch of XMsgs to be executed on this chain
* @param xsub An xchain submission, including an attestation root w/ validator signatures,
* and a block header and message batch, proven against the attestation root.
*/
function xsubmit(XTypes.Submission calldata xsub)
external
whenNotPaused(ActionXSubmit, xsub.blockHeader.sourceChainId)
nonReentrant
{
XTypes.Msg[] calldata xmsgs = xsub.msgs;
XTypes.BlockHeader calldata xheader = xsub.blockHeader;
uint64 valSetId = xsub.validatorSetId;
require(xheader.consensusChainId == omniCChainId, "OmniPortal: wrong cchain ID");
require(xmsgs.length > 0, "OmniPortal: no xmsgs");
require(valSetTotalPower[valSetId] > 0, "OmniPortal: unknown val set");
require(valSetId >= _minValSet(), "OmniPortal: old val set");
// check that the attestationRoot is signed by a quorum of validators in xsub.validatorsSetId
require(
Quorum.verify(
xsub.attestationRoot,
xsub.signatures,
valSet[valSetId],
valSetTotalPower[valSetId],
XSubQuorumNumerator,
XSubQuorumDenominator
),
"OmniPortal: no quorum"
);
// check that blockHeader and xmsgs are included in attestationRoot
require(
XBlockMerkleProof.verify(xsub.attestationRoot, xheader, xmsgs, xsub.proof, xsub.proofFlags),
"OmniPortal: invalid proof"
);
// execute xmsgs
for (uint256 i = 0; i < xmsgs.length; i++) {
_exec(xheader, xmsgs[i]);
}
}
/**
* @notice Returns the current XMsg being executed via this portal.
* - xmsg().sourceChainId Chain ID of the source xcall
* - xmsg().sender msg.sender of the source xcall
* If no XMsg is being executed, all fields will be zero.
* - xmsg().sourceChainId == 0
* - xmsg().sender == address(0)
*/
function xmsg() external view returns (XTypes.MsgContext memory) {
return _xmsg;
}
/**
* @notice Returns true the current transaction is an xcall, false otherwise
*/
function isXCall() external view returns (bool) {
return _xmsg.sourceChainId != 0;
}
/**
* @notice Execute an xmsg.
* @dev Verify if an XMsg is next in its XStream, execute it, increment inXMsgOffset, emit an XReceipt event
*/
function _exec(XTypes.BlockHeader memory xheader, XTypes.Msg calldata xmsg_) internal {
uint64 sourceChainId = xheader.sourceChainId;
uint64 destChainId = xmsg_.destChainId;
uint64 shardId = xmsg_.shardId;
uint64 offset = xmsg_.offset;
require(destChainId == chainId() || destChainId == BroadcastChainId, "OmniPortal: wrong dest chain");
require(offset == inXMsgOffset[sourceChainId][shardId] + 1, "OmniPortal: wrong offset");
// verify xmsg conf level matches xheader conf level
// allow finalized blocks to for any xmsg, so that finalized blocks may correct "fuzzy" xmsgs
require(
ConfLevel.Finalized == xheader.confLevel || xheader.confLevel == uint8(shardId),
"OmniPortal: wrong conf level"
);
if (inXBlockOffset[sourceChainId][shardId] < xheader.offset) {
inXBlockOffset[sourceChainId][shardId] = xheader.offset;
}
inXMsgOffset[sourceChainId][shardId] += 1;
// do not allow user xcalls to the portal
// only sys xcalls (to _VIRTUAL_PORTAL_ADDRESS) are allowed to be executed on the portal
if (xmsg_.to == address(this)) {
emit XReceipt(
sourceChainId,
shardId,
offset,
0,
msg.sender,
false,
abi.encodeWithSignature("Error(string)", "OmniPortal: no xcall to portal")
);
return;
}
// set _xmsg to the one we're executing, allowing external contracts to query the current xmsg via xmsg()
_xmsg = XTypes.MsgContext(sourceChainId, xmsg_.sender);
(bool success, bytes memory result, uint256 gasUsed) = xmsg_.to == VirtualPortalAddress // calls to VirtualPortalAddress are syscalls
? _syscall(xmsg_.data)
: _call(xmsg_.to, xmsg_.gasLimit, xmsg_.data);
// reset xmsg to zero
delete _xmsg;
bytes memory errorMsg = success ? bytes("") : result;
emit XReceipt(sourceChainId, shardId, offset, gasUsed, msg.sender, success, errorMsg);
}
/**
* @notice Call an external contract.
* @dev Returns the result of the call, the gas used, and whether the call was successful.
* @param to The address of the contract to call.
* @param gasLimit Gas limit of the call.
* @param data Calldata to send to the contract.
*/
function _call(address to, uint256 gasLimit, bytes calldata data) internal returns (bool, bytes memory, uint256) {
uint256 gasLeftBefore = gasleft();
// use excessivelySafeCall for external calls to prevent large return bytes mem copy
(bool success, bytes memory result) =
to.excessivelySafeCall({ _gas: gasLimit, _value: 0, _maxCopy: xreceiptMaxErrorSize, _calldata: data });
uint256 gasLeftAfter = gasleft();
// Ensure relayer sent enough gas for the call
// See https://github.com/OpenZeppelin/openzeppelin-contracts/blob/bd325d56b4c62c9c5c1aff048c37c6bb18ac0290/contracts/metatx/MinimalForwarder.sol#L58-L68
if (gasLeftAfter <= gasLimit / 63) {
// We use invalid opcode to consume all gas and bubble-up the effects, to emulate an "OutOfGas" exception
assembly {
invalid()
}
}
return (success, result, gasLeftBefore - gasLeftAfter);
}
/**
* @notice Call a function on the current contract.
* @dev Reverts on failure. We match _call() return signature for symmetry.
* @param data Calldata to execute on the current contract.
*/
function _syscall(bytes calldata data) internal returns (bool, bytes memory, uint256) {
uint256 gasUsed = gasleft();
(bool success, bytes memory result) = address(this).call(data);
gasUsed = gasUsed - gasleft();
// if not success, revert with same reason
if (!success) {
assembly {
revert(add(result, 32), mload(result))
}
}
return (success, result, gasUsed);
}
/**
* @notice Returns the minimum validator set id that can be used for xsubmissions
*/
function _minValSet() internal view returns (uint64) {
return latestValSetId > xsubValsetCutoff
// plus 1, so the number of accepted valsets == XSubValsetCutoff
? (latestValSetId - xsubValsetCutoff + 1)
: 1;
}
//////////////////////////////////////////////////////////////////////////////
// Syscall functions //
//////////////////////////////////////////////////////////////////////////////
/**
* @notice Add a new validator set.
* @dev Only callable via xcall from Omni's consensus chain
* @param valSetId Validator set id
* @param validators Validator set
*/
function addValidatorSet(uint64 valSetId, XTypes.Validator[] calldata validators) external {
require(msg.sender == address(this), "OmniPortal: only self");
require(_xmsg.sourceChainId == omniCChainId, "OmniPortal: only cchain");
require(_xmsg.sender == CChainSender, "OmniPortal: only cchain sender");
_addValidatorSet(valSetId, validators);
}
/**
* @notice Add a new validator set
* @param valSetId Validator set id
* @param validators Validator set
*/
function _addValidatorSet(uint64 valSetId, XTypes.Validator[] calldata validators) internal {
uint256 numVals = validators.length;
require(numVals > 0, "OmniPortal: no validators");
require(valSetTotalPower[valSetId] == 0, "OmniPortal: duplicate val set");
uint64 totalPower;
XTypes.Validator memory val;
mapping(address => uint64) storage valSet = valSet[valSetId];
for (uint256 i = 0; i < numVals; i++) {
val = validators[i];
require(val.addr != address(0), "OmniPortal: no zero validator");
require(val.power > 0, "OmniPortal: no zero power");
require(valSet[val.addr] == 0, "OmniPortal: duplicate validator");
totalPower += val.power;
valSet[val.addr] = val.power;
}
valSetTotalPower[valSetId] = totalPower;
if (valSetId > latestValSetId) latestValSetId = valSetId;
emit ValidatorSetAdded(valSetId);
}
/**
* @notice Set the network of supported chains & shards
* @dev Only callable via xcall from Omni's consensus chain
* @param network_ The new network
*/
function setNetwork(XTypes.Chain[] calldata network_) external {
require(msg.sender == address(this), "OmniPortal: only self");
require(_xmsg.sourceChainId == omniCChainId, "OmniPortal: only cchain");
require(_xmsg.sender == CChainSender, "OmniPortal: only cchain sender");
_setNetwork(network_);
}
/**
* @notice Set the network of supported chains & shards
* @param network_ The new network
*/
function _setNetwork(XTypes.Chain[] calldata network_) internal {
_clearNetwork();
XTypes.Chain calldata c;
for (uint256 i = 0; i < network_.length; i++) {
c = network_[i];
network.push(c);
// if not this chain, mark as supported dest
if (c.chainId != chainId()) {
isSupportedDest[c.chainId] = true;
continue;
}
// if this chain, mark shards as supported
for (uint256 j = 0; j < c.shards.length; j++) {
isSupportedShard[c.shards[j]] = true;
}
}
}
/**
* @notice Clear the network of supported chains & shards
*/
function _clearNetwork() private {
XTypes.Chain storage c;
for (uint256 i = 0; i < network.length; i++) {
c = network[i];
// if not this chain, mark as unsupported dest
if (c.chainId != chainId()) {
isSupportedDest[c.chainId] = false;
continue;
}
// if this chain, mark shards as unsupported
for (uint256 j = 0; j < c.shards.length; j++) {
isSupportedShard[c.shards[j]] = false;
}
}
delete network;
}
//////////////////////////////////////////////////////////////////////////////
// Admin functions //
//////////////////////////////////////////////////////////////////////////////
/**
* @notice Set the inbound xmsg offset for a chain and shard
* @param sourceChainId Source chain ID
* @param shardId Shard ID
* @param offset New xmsg offset
*/
function setInXMsgOffset(uint64 sourceChainId, uint64 shardId, uint64 offset) external onlyOwner {
inXMsgOffset[sourceChainId][shardId] = offset;
emit InXMsgOffsetSet(sourceChainId, shardId, offset);
}
/**
* @notice Set the inbound xblock offset for a chain and shard
* @param sourceChainId Source chain ID
* @param shardId Shard ID
* @param offset New xblock offset
*/
function setInXBlockOffset(uint64 sourceChainId, uint64 shardId, uint64 offset) external onlyOwner {
inXBlockOffset[sourceChainId][shardId] = offset;
emit InXBlockOffsetSet(sourceChainId, shardId, offset);
}
/**
* @notice Set the fee oracle
*/
function setFeeOracle(address feeOracle_) external onlyOwner {
_setFeeOracle(feeOracle_);
}
/**
* @notice Transfer all collected fees to the give address
* @param to The address to transfer the fees to
*/
function collectFees(address to) external onlyOwner {
uint256 amount = address(this).balance;
// .transfer() is fine, owner should provide an EOA address that will not
// consume more than 2300 gas on transfer, and we are okay .transfer() reverts
payable(to).transfer(amount);
emit FeesCollected(to, amount);
}
/**
* @notice Set the minimum gas limit for xmsg
*/
function setXMsgMinGasLimit(uint64 gasLimit) external onlyOwner {
_setXMsgMinGasLimit(gasLimit);
}
/**
* @notice Set the maximum gas limit for xmsg
*/
function setXMsgMaxGasLimit(uint64 gasLimit) external onlyOwner {
_setXMsgMaxGasLimit(gasLimit);
}
/**
* @notice Set the maximum error bytes for xreceipt
*/
function setXMsgMaxDataSize(uint16 numBytes) external onlyOwner {
_setXMsgMaxDataSize(numBytes);
}
/**
* @notice Set the maximum error bytes for xreceipt
*/
function setXReceiptMaxErrorSize(uint16 numBytes) external onlyOwner {
_setXReceiptMaxErrorSize(numBytes);
}
/**
* @notice Set the number of validator sets since the latest that can validate an XSubmission
*/
function setXSubValsetCutoff(uint8 xsubValsetCutoff_) external onlyOwner {
_setXSubValsetCutoff(xsubValsetCutoff_);
}
/**
* @notice Pause xcalls and xsubissions from all chains
*/
function pause() external onlyOwner {
_pauseAll();
emit Paused();
}
/**
* @notice Unpause xcalls and xsubissions from all chains
*/
function unpause() external onlyOwner {
_unpauseAll();
emit Unpaused();
}
/**
* @notice Pause xcalls to all chains
*/
function pauseXCall() external onlyOwner {
_pause(ActionXCall);
emit XCallPaused();
}
/**
* @notice Unpause xcalls to all chains
*/
function unpauseXCall() external onlyOwner {
_unpause(ActionXCall);
emit XCallUnpaused();
}
/**
* @notice Pause xcalls to a specific chain
* @param chainId_ Destination chain ID
*/
function pauseXCallTo(uint64 chainId_) external onlyOwner {
_pause(_chainActionId(ActionXCall, chainId_));
emit XCallToPaused(chainId_);
}
/**
* @notice Unpause xcalls to a specific chain
* @param chainId_ Destination chain ID
*/
function unpauseXCallTo(uint64 chainId_) external onlyOwner {
_unpause(_chainActionId(ActionXCall, chainId_));
emit XCallToUnpaused(chainId_);
}
/**
* @notice Pause xsubmissions from all chains
*/
function pauseXSubmit() external onlyOwner {
_pause(ActionXSubmit);
emit XSubmitPaused();
}
/**
* @notice Unpause xsubmissions from all chains
*/
function unpauseXSubmit() external onlyOwner {
_unpause(ActionXSubmit);
emit XSubmitUnpaused();
}
/**
* @notice Pause xsubmissions from a specific chain
* @param chainId_ Source chain ID
*/
function pauseXSubmitFrom(uint64 chainId_) external onlyOwner {
_pause(_chainActionId(ActionXSubmit, chainId_));
emit XSubmitFromPaused(chainId_);
}
/**
* @notice Unpause xsubmissions from a specific chain
* @param chainId_ Source chain ID
*/
function unpauseXSubmitFrom(uint64 chainId_) external onlyOwner {
_unpause(_chainActionId(ActionXSubmit, chainId_));
emit XSubmitFromUnpaused(chainId_);
}
/**
* @notice Return true if actionId for is paused for the given chain
*/
function isPaused(bytes32 actionId, uint64 chainId_) external view returns (bool) {
return _isPaused(actionId, _chainActionId(actionId, chainId_));
}
/**
* @notice Return true if actionId is paused for all chains
*/
function isPaused(bytes32 actionId) external view returns (bool) {
return _isPaused(actionId);
}
/*
* @notice Return true if all actions are paused
*/
function isPaused() external view returns (bool) {
return _isAllPaused();
}
/**
* @notice An action id with a qualifiying chain id, used as pause keys.
*/
function _chainActionId(bytes32 actionId, uint64 chainId_) internal pure returns (bytes32) {
return keccak256(abi.encodePacked(actionId, chainId_));
}
/**
* @notice Set the minimum gas limit for xmsg
*/
function _setXMsgMinGasLimit(uint64 gasLimit) internal {
require(gasLimit > 0, "OmniPortal: no zero min gas");
xmsgMinGasLimit = gasLimit;
emit XMsgMinGasLimitSet(gasLimit);
}
/**
* @notice Set the maximum gas limit for xmsg
*/
function _setXMsgMaxGasLimit(uint64 gasLimit) internal {
require(gasLimit > 0, "OmniPortal: no zero max gas");
xmsgMaxGasLimit = gasLimit;
emit XMsgMaxGasLimitSet(gasLimit);
}
/**
* @notice Set the maximum data bytes for xmsg
*/
function _setXMsgMaxDataSize(uint16 numBytes) internal {
require(numBytes > 0, "OmniPortal: no zero max size");
xmsgMaxDataSize = numBytes;
emit XMsgMaxDataSizeSet(numBytes);
}
/**
* @notice Set the maximum error bytes for xreceipt
*/
function _setXReceiptMaxErrorSize(uint16 numBytes) internal {
require(numBytes > 0, "OmniPortal: no zero max size");
xreceiptMaxErrorSize = numBytes;
emit XReceiptMaxErrorSizeSet(numBytes);
}
/**
* @notice Set the number of validator sets since the latest that can validate an XSubmission
*/
function _setXSubValsetCutoff(uint8 xsubValsetCutoff_) internal {
require(xsubValsetCutoff_ > 0, "OmniPortal: no zero cutoff");
xsubValsetCutoff = xsubValsetCutoff_;
emit XSubValsetCutoffSet(xsubValsetCutoff_);
}
/**
* @notice Set the fee oracle
*/
function _setFeeOracle(address feeOracle_) internal {
require(feeOracle_ != address(0), "OmniPortal: no zero feeOracle");
feeOracle = feeOracle_;
emit FeeOracleSet(feeOracle_);
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)
pragma solidity ^0.8.20;
import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.sol";
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* The initial owner is set to the address provided by the deployer. This can
* later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {
/// @custom:storage-location erc7201:openzeppelin.storage.Ownable
struct OwnableStorage {
address _owner;
}
// keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Ownable")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant OwnableStorageLocation = 0x9016d09d72d40fdae2fd8ceac6b6234c7706214fd39c1cd1e609a0528c199300;
function _getOwnableStorage() private pure returns (OwnableStorage storage $) {
assembly {
$.slot := OwnableStorageLocation
}
}
/**
* @dev The caller account is not authorized to perform an operation.
*/
error OwnableUnauthorizedAccount(address account);
/**
* @dev The owner is not a valid owner account. (eg. `address(0)`)
*/
error OwnableInvalidOwner(address owner);
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the address provided by the deployer as the initial owner.
*/
function __Ownable_init(address initialOwner) internal onlyInitializing {
__Ownable_init_unchained(initialOwner);
}
function __Ownable_init_unchained(address initialOwner) internal onlyInitializing {
if (initialOwner == address(0)) {
revert OwnableInvalidOwner(address(0));
}
_transferOwnership(initialOwner);
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
OwnableStorage storage $ = _getOwnableStorage();
return $._owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
if (owner() != _msgSender()) {
revert OwnableUnauthorizedAccount(_msgSender());
}
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby disabling any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
if (newOwner == address(0)) {
revert OwnableInvalidOwner(address(0));
}
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
OwnableStorage storage $ = _getOwnableStorage();
address oldOwner = $._owner;
$._owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/ReentrancyGuard.sol)
pragma solidity ^0.8.20;
import {Initializable} from "../proxy/utils/Initializable.sol";
/**
* @dev Contract module that helps prevent reentrant calls to a function.
*
* Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
* available, which can be applied to functions to make sure there are no nested
* (reentrant) calls to them.
*
* Note that because there is a single `nonReentrant` guard, functions marked as
* `nonReentrant` may not call one another. This can be worked around by making
* those functions `private`, and then adding `external` `nonReentrant` entry
* points to them.
*
* TIP: If you would like to learn more about reentrancy and alternative ways
* to protect against it, check out our blog post
* https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
*/
abstract contract ReentrancyGuardUpgradeable is Initializable {
// Booleans are more expensive than uint256 or any type that takes up a full
// word because each write operation emits an extra SLOAD to first read the
// slot's contents, replace the bits taken up by the boolean, and then write
// back. This is the compiler's defense against contract upgrades and
// pointer aliasing, and it cannot be disabled.
// The values being non-zero value makes deployment a bit more expensive,
// but in exchange the refund on every call to nonReentrant will be lower in
// amount. Since refunds are capped to a percentage of the total
// transaction's gas, it is best to keep them low in cases like this one, to
// increase the likelihood of the full refund coming into effect.
uint256 private constant NOT_ENTERED = 1;
uint256 private constant ENTERED = 2;
/// @custom:storage-location erc7201:openzeppelin.storage.ReentrancyGuard
struct ReentrancyGuardStorage {
uint256 _status;
}
// keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.ReentrancyGuard")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant ReentrancyGuardStorageLocation = 0x9b779b17422d0df92223018b32b4d1fa46e071723d6817e2486d003becc55f00;
function _getReentrancyGuardStorage() private pure returns (ReentrancyGuardStorage storage $) {
assembly {
$.slot := ReentrancyGuardStorageLocation
}
}
/**
* @dev Unauthorized reentrant call.
*/
error ReentrancyGuardReentrantCall();
function __ReentrancyGuard_init() internal onlyInitializing {
__ReentrancyGuard_init_unchained();
}
function __ReentrancyGuard_init_unchained() internal onlyInitializing {
ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
$._status = NOT_ENTERED;
}
/**
* @dev Prevents a contract from calling itself, directly or indirectly.
* Calling a `nonReentrant` function from another `nonReentrant`
* function is not supported. It is possible to prevent this from happening
* by making the `nonReentrant` function external, and making it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
_nonReentrantBefore();
_;
_nonReentrantAfter();
}
function _nonReentrantBefore() private {
ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
// On the first call to nonReentrant, _status will be NOT_ENTERED
if ($._status == ENTERED) {
revert ReentrancyGuardReentrantCall();
}
// Any calls to nonReentrant after this point will fail
$._status = ENTERED;
}
function _nonReentrantAfter() private {
ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
// By storing the original value once again, a refund is triggered (see
// https://eips.ethereum.org/EIPS/eip-2200)
$._status = NOT_ENTERED;
}
/**
* @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
* `nonReentrant` function in the call stack.
*/
function _reentrancyGuardEntered() internal view returns (bool) {
ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
return $._status == ENTERED;
}
}// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity >=0.7.6;
library ExcessivelySafeCall {
uint256 constant LOW_28_MASK =
0x00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff;
/// @notice Use when you _really_ really _really_ don't trust the called
/// contract. This prevents the called contract from causing reversion of
/// the caller in as many ways as we can.
/// @dev The main difference between this and a solidity low-level call is
/// that we limit the number of bytes that the callee can cause to be
/// copied to caller memory. This prevents stupid things like malicious
/// contracts returning 10,000,000 bytes causing a local OOG when copying
/// to memory.
/// @param _target The address to call
/// @param _gas The amount of gas to forward to the remote contract
/// @param _value The value in wei to send to the remote contract
/// @param _maxCopy The maximum number of bytes of returndata to copy
/// to memory.
/// @param _calldata The data to send to the remote contract
/// @return success and returndata, as `.call()`. Returndata is capped to
/// `_maxCopy` bytes.
function excessivelySafeCall(
address _target,
uint256 _gas,
uint256 _value,
uint16 _maxCopy,
bytes memory _calldata
) internal returns (bool, bytes memory) {
// set up for assembly call
uint256 _toCopy;
bool _success;
bytes memory _returnData = new bytes(_maxCopy);
// dispatch message to recipient
// by assembly calling "handle" function
// we call via assembly to avoid memcopying a very large returndata
// returned by a malicious contract
assembly {
_success := call(
_gas, // gas
_target, // recipient
_value, // ether value
add(_calldata, 0x20), // inloc
mload(_calldata), // inlen
0, // outloc
0 // outlen
)
// limit our copy to 256 bytes
_toCopy := returndatasize()
if gt(_toCopy, _maxCopy) {
_toCopy := _maxCopy
}
// Store the length of the copied bytes
mstore(_returnData, _toCopy)
// copy the bytes from returndata[0:_toCopy]
returndatacopy(add(_returnData, 0x20), 0, _toCopy)
}
return (_success, _returnData);
}
/// @notice Use when you _really_ really _really_ don't trust the called
/// contract. This prevents the called contract from causing reversion of
/// the caller in as many ways as we can.
/// @dev The main difference between this and a solidity low-level call is
/// that we limit the number of bytes that the callee can cause to be
/// copied to caller memory. This prevents stupid things like malicious
/// contracts returning 10,000,000 bytes causing a local OOG when copying
/// to memory.
/// @param _target The address to call
/// @param _gas The amount of gas to forward to the remote contract
/// @param _maxCopy The maximum number of bytes of returndata to copy
/// to memory.
/// @param _calldata The data to send to the remote contract
/// @return success and returndata, as `.call()`. Returndata is capped to
/// `_maxCopy` bytes.
function excessivelySafeStaticCall(
address _target,
uint256 _gas,
uint16 _maxCopy,
bytes memory _calldata
) internal view returns (bool, bytes memory) {
// set up for assembly call
uint256 _toCopy;
bool _success;
bytes memory _returnData = new bytes(_maxCopy);
// dispatch message to recipient
// by assembly calling "handle" function
// we call via assembly to avoid memcopying a very large returndata
// returned by a malicious contract
assembly {
_success := staticcall(
_gas, // gas
_target, // recipient
add(_calldata, 0x20), // inloc
mload(_calldata), // inlen
0, // outloc
0 // outlen
)
// limit our copy to 256 bytes
_toCopy := returndatasize()
if gt(_toCopy, _maxCopy) {
_toCopy := _maxCopy
}
// Store the length of the copied bytes
mstore(_returnData, _toCopy)
// copy the bytes from returndata[0:_toCopy]
returndatacopy(add(_returnData, 0x20), 0, _toCopy)
}
return (_success, _returnData);
}
/**
* @notice Swaps function selectors in encoded contract calls
* @dev Allows reuse of encoded calldata for functions with identical
* argument types but different names. It simply swaps out the first 4 bytes
* for the new selector. This function modifies memory in place, and should
* only be used with caution.
* @param _newSelector The new 4-byte selector
* @param _buf The encoded contract args
*/
function swapSelector(bytes4 _newSelector, bytes memory _buf)
internal
pure
{
require(_buf.length >= 4);
uint256 _mask = LOW_28_MASK;
assembly {
// load the first word of
let _word := mload(add(_buf, 0x20))
// mask out the top 4 bytes
// /x
_word := and(_word, _mask)
_word := or(_newSelector, _word)
mstore(add(_buf, 0x20), _word)
}
}
}// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.12;
/**
* @title IFeeOracle
* @notice Defines the interface expected of a fee oracle by the OmniPortal
*/
interface IFeeOracle {
/**
* @notice Calculate the fee for calling a contract on another chain
* @dev Fees denominated in wei
* @param destChainId Destination chain ID
* @param data Encoded function calldata
* @param gasLimit Execution gas limit, enforced on destination chain
*/
function feeFor(uint64 destChainId, bytes calldata data, uint64 gasLimit) external view returns (uint256);
}// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.12;
import { XTypes } from "../libraries/XTypes.sol";
/**
* @title IOmniPortal
* @notice The OmniPortal is the on-chain interface to Omni's cross-chain
* messaging protocol. It is used to initiate and execute cross-chain calls.
*/
interface IOmniPortal {
/**
* @notice Emitted when an xcall is made to a contract on another chain
* @param destChainId Destination chain ID
* @param offset Offset this XMsg in the source -> dest XStream
* @param sender msg.sender of the source xcall
* @param to Address of the contract to call on the destination chain
* @param data Encoded function calldata
* @param gasLimit Gas limit for execution on destination chain
* @param fees Fees paid for the xcall
*/
event XMsg(
uint64 indexed destChainId,
uint64 indexed shardId,
uint64 indexed offset,
address sender,
address to,
bytes data,
uint64 gasLimit,
uint256 fees
);
/**
* @notice Emitted when an XMsg is executed on its destination chain
* @param sourceChainId Source chain ID
* @param shardId Shard ID of the XStream (first byte is the confirmation level)
* @param offset Offset the XMsg in the source -> dest XStream
* @param gasUsed Gas used in execution of the XMsg
* @param success Whether the execution succeeded
* @param relayer Address of the relayer who submitted the XMsg
* @param error Result of XMsg execution, if success == false. Limited to
* xreceiptMaxErrorBytes(). Empty if success == true.
*/
event XReceipt(
uint64 indexed sourceChainId,
uint64 indexed shardId,
uint64 indexed offset,
uint256 gasUsed,
address relayer,
bool success,
bytes error
);
/**
* @notice Maximum allowed xmsg gas limit
*/
function xmsgMaxGasLimit() external view returns (uint64);
/**
* @notice Minimum allowed xmsg gas limit
*/
function xmsgMinGasLimit() external view returns (uint64);
/**
* @notice Maximum number of bytes allowed in xmsg data
*/
function xmsgMaxDataSize() external view returns (uint16);
/**
* @notice Maxium number of bytes allowed in xreceipt result
*/
function xreceiptMaxErrorSize() external view returns (uint16);
/**
* @notice Returns the fee oracle address
*/
function feeOracle() external view returns (address);
/**
* @notice Returns the chain ID of the chain to which this portal is deployed
*/
function chainId() external view returns (uint64);
/**
* @notice Returns the chain ID of Omni's EVM execution chain
*/
function omniChainId() external view returns (uint64);
/**
* @notice Returns the offset of the last outbound XMsg sent to destChainId in shardId
*/
function outXMsgOffset(uint64 destChainId, uint64 shardId) external view returns (uint64);
/**
* @notice Returns the offset of the last inbound XMsg received from srcChainId in shardId
*/
function inXMsgOffset(uint64 srcChainId, uint64 shardId) external view returns (uint64);
/**
* @notice Returns the offset of the last inbound XBlock received from srcChainId in shardId
*/
function inXBlockOffset(uint64 srcChainId, uint64 shardId) external view returns (uint64);
/**
* @notice Returns the current XMsg being executed via this portal.
* - xmsg().sourceChainId Chain ID of the source xcall
* - xmsg().sender msg.sender of the source xcall
* If no XMsg is being executed, all fields will be zero.
* - xmsg().sourceChainId == 0
* - xmsg().sender == address(0)
*/
function xmsg() external view returns (XTypes.MsgContext memory);
/**
* @notice Returns true the current transaction is an xcall, false otherwise
*/
function isXCall() external view returns (bool);
/**
* @notice Returns the shard ID is supported by this portal
*/
function isSupportedShard(uint64 shardId) external view returns (bool);
/**
* @notice Returns the destination chain ID is supported by this portal
*/
function isSupportedDest(uint64 destChainId) external view returns (bool);
/**
* @notice Calculate the fee for calling a contract on another chain
* Fees denominated in wei.
* @param destChainId Destination chain ID
* @param data Encoded function calldata
* @param gasLimit Execution gas limit, enforced on destination chain
*/
function feeFor(uint64 destChainId, bytes calldata data, uint64 gasLimit) external view returns (uint256);
/**
* @notice Call a contract on another chain.
* @param destChainId Destination chain ID
* @param conf Confirmation level;
* @param to Address of contract to call on destination chain
* @param data ABI Encoded function calldata
* @param gasLimit Execution gas limit, enforced on destination chain
*/
function xcall(uint64 destChainId, uint8 conf, address to, bytes calldata data, uint64 gasLimit) external payable;
/**
* @notice Submit a batch of XMsgs to be executed on this chain
* @param xsub An xchain submisison, including an attestation root w/ validator signatures,
* and a block header and message batch, proven against the attestation root.
*/
function xsubmit(XTypes.Submission calldata xsub) external;
}// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.12;
import { XTypes } from "../libraries/XTypes.sol";
/**
* @title IOmniPortalSys
* @notice Defines syscall functions internal to Omni's cross-chain messaging protocol
*/
interface IOmniPortalSys {
/**
* @notice Emitted when a new validator set is added
* @param setId Validator set ID
*/
event ValidatorSetAdded(uint64 indexed setId);
/**
* @notice Add a new validator set.
* @dev Only callable via xcall from Omni's consensus chain
* @param valSetId Validator set id
* @param validators Validator set
*/
function addValidatorSet(uint64 valSetId, XTypes.Validator[] calldata validators) external;
/**
* @notice Set the network of supported chains & shards
* @dev Only callable via xcall from Omni's consensus chain
* @param network_ The new network
*/
function setNetwork(XTypes.Chain[] calldata network_) external;
}// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.12;
/**
* @title IOmniPortalAdmin
* @notice Defines the OmniPortal admin interface
*/
interface IOmniPortalAdmin {
/**
* @notice Emitted when the fee oracle is updated.
* @param oracle The new fee oracle address
*/
event FeeOracleSet(address oracle);
/**
* @notice Emited when fees are collected
* @param to The address the fees are collected to
* @param amount The amount of fees collected
*/
event FeesCollected(address indexed to, uint256 amount);
/**
* @notice Emitted when xmsgMinGasLimit is updated
* @param gasLimit The new xmsgMinGasLimit
*/
event XMsgMinGasLimitSet(uint64 gasLimit);
/**
* @notice Emitted when xmsgMaxGasLimit is updated
* @param gasLimit The new xmsgMaxGasLimit
*/
event XMsgMaxGasLimitSet(uint64 gasLimit);
/**
* @notice Emitted when xmsgMaxDataSize is updated
* @param size The new max size
*/
event XMsgMaxDataSizeSet(uint16 size);
/**
* @notice Emitted when xreceiptMaxErrorSize is updated
* @param size The new max size
*/
event XReceiptMaxErrorSizeSet(uint16 size);
/**
* @notice Emitted when the xsubValsetCutoff is updated
* @param cutoff The new cutoff
*/
event XSubValsetCutoffSet(uint8 cutoff);
/**
* @notice Emitted the portal is paused, all xcalls and xsubmissions
*/
event Paused();
/**
* @notice Emitted the portal is unpaused, all xcalls and xsubmissions
*/
event Unpaused();
/**
* @notice Emitted when all xcalls are paused
*/
event XCallPaused();
/**
* @notice Emitted when inbound xmsg offset is updated
*/
event InXMsgOffsetSet(uint64 indexed srcChainId, uint64 indexed shardId, uint64 offset);
/**
* @notice Emitted when all inbound xblock offset is updated
*/
event InXBlockOffsetSet(uint64 indexed srcChainId, uint64 indexed shardId, uint64 offset);
/**
* @notice Emitted when all xcalls are unpaused
*/
event XCallUnpaused();
/**
* @notice Emitted when all xsubmissions are paused
*/
event XSubmitPaused();
/**
* @notice Emitted when all xsubmissions are unpaused
*/
event XSubmitUnpaused();
/**
* @notice Emitted when xcalls to a specific chain are paused
* @param chainId The destination chain
*/
event XCallToPaused(uint64 indexed chainId);
/**
* @notice Emitted when xcalls to a specific chain are unpaused
* @param chainId The destination chain
*/
event XCallToUnpaused(uint64 indexed chainId);
/**
* @notice Emitted when xsubmissions from a specific chain are paused
* @param chainId The source chain
*/
event XSubmitFromPaused(uint64 indexed chainId);
/**
* @notice Emitted when xsubmissions from a specific chain are unpaused
* @param chainId The source chain
*/
event XSubmitFromUnpaused(uint64 indexed chainId);
/**
* @notice Set the inbound xmsg offset for a chain and shard
* @param sourceChainId Source chain ID
* @param shardId Shard ID
* @param offset New xmsg offset
*/
function setInXMsgOffset(uint64 sourceChainId, uint64 shardId, uint64 offset) external;
/**
* @notice Set the inbound xblock offset for a chain and shard
* @param sourceChainId Source chain ID
* @param shardId Shard ID
* @param offset New xblock offset
*/
function setInXBlockOffset(uint64 sourceChainId, uint64 shardId, uint64 offset) external;
/**
* @notice Set the fee oracle
*/
function setFeeOracle(address feeOracle) external;
/**
* @notice Transfer all collected fees to the give address
* @param to The address to transfer the fees to
*/
function collectFees(address to) external;
/**
* @notice Set the minimum gas limit for xmsg
*/
function setXMsgMinGasLimit(uint64 gasLimit) external;
/**
* @notice Set the maximum gas limit for xmsg
*/
function setXMsgMaxGasLimit(uint64 gasLimit) external;
/**
* @notice Set the maximum data bytes for xmsg
*/
function setXMsgMaxDataSize(uint16 numBytes) external;
/**
* @notice Set the maximum error bytes for xreceipt
*/
function setXReceiptMaxErrorSize(uint16 numBytes) external;
/**
* @notice Pause xcalls
*/
function pause() external;
/**
* @notice Unpause xcalls
*/
function unpause() external;
}// SPDX-License-Identifier: GPL-3.0-only
pragma solidity =0.8.24;
import { MerkleProof } from "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol";
import { XTypes } from "./XTypes.sol";
/**
* @title XBlockMerkleProof
* @dev Library for verifying XBlock merkle proofs
*/
library XBlockMerkleProof {
/// @dev Domain separation tag for XBlockHeaders, prepended to leaves before hashing and signing.
uint8 internal constant DST_XBLOCK_HEADER = 1;
/// @dev Domain separation tag for XMsgs, prepended to leaves before hashing and signing.
uint8 internal constant DST_XMSG = 2;
/**
* @notice Verifies that the provided xmsgs & multi proof produce an xmsg merkle root that, when
* combined with the xblock header, produces the provided root.
* @param root The root of the nested xblock merkle tree (xblock header + xmsg merkle root).
* @param blockHeader Xblock header.
* @param msgs Xmsgs to verify.
* @param msgProof Xmsg merkle proof.
* @param msgProofFlags Xmsg merkle proof flags.
* @return True if the msgs, msg proof & block header are valid, agsinst the provided root.
*/
function verify(
bytes32 root,
XTypes.BlockHeader calldata blockHeader,
XTypes.Msg[] calldata msgs,
bytes32[] calldata msgProof,
bool[] calldata msgProofFlags
) internal pure returns (bool) {
bytes32[] memory rootProof = new bytes32[](1);
rootProof[0] = MerkleProof.processMultiProofCalldata(msgProof, msgProofFlags, _msgLeaves(msgs));
return MerkleProof.verify(rootProof, root, _blockHeaderLeaf(blockHeader));
}
/// @dev Convert xmsgs to leaf hashes
function _msgLeaves(XTypes.Msg[] calldata msgs) private pure returns (bytes32[] memory) {
bytes32[] memory leaves = new bytes32[](msgs.length);
for (uint256 i = 0; i < msgs.length; i++) {
leaves[i] = _leafHash(DST_XMSG, abi.encode(msgs[i]));
}
return leaves;
}
/// @dev Convert xblock header to leaf hash
function _blockHeaderLeaf(XTypes.BlockHeader calldata blockHeader) private pure returns (bytes32) {
return _leafHash(DST_XBLOCK_HEADER, abi.encode(blockHeader));
}
/// @dev Double hash leaves, as recommended by OpenZeppelin, to prevent second preimage attacks
/// Leaves must be double hashed in tree / proof construction
/// Callers must specify the domain separation tag of the leaf, which will be hashed in
function _leafHash(uint8 dst, bytes memory leaf) private pure returns (bytes32) {
return keccak256(bytes.concat(keccak256(abi.encodePacked(dst, leaf))));
}
}// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.12;
/**
* @title XTypes
* @dev Defines xchain types, core to Omni's xchain messaging protocol. These
* types mirror those defined in omni/lib/xchain/types.go.
*/
library XTypes {
/**
* @notice A cross chain message - the product of an xcall. This matches the XMsg type used
* throughout Omni's cross-chain messaging protocol. Msg is used to construct and verify
* XSubmission merkle trees / proofs.
* @custom:field destChainId Chain ID of the destination chain
* @custom:field shardId Shard ID of the XStream (first byte is the confirmation level)
* @custom:field offset Monotonically incremented offset of Msg in source -> dest Stream
* @custom:field sender msg.sender of xcall on source chain
* @custom:field to Target address to call on destination chain
* @custom:field data Data to provide to call on destination chain
* @custom:field gasLimit Gas limit to use for call execution on destination chain
*/
struct Msg {
uint64 destChainId;
uint64 shardId;
uint64 offset;
address sender;
address to;
bytes data;
uint64 gasLimit;
}
/**
* @notice Msg context exposed during its execution to consuming xapps.
* @custom:field sourceChainId Chain ID of the source chain
* @custom:field sender msg.sender of xcall on source chain
*/
struct MsgContext {
uint64 sourceChainId;
address sender;
}
/**
* @notice BlockHeader of an XBlock.
* @custom:field sourceChainId Chain ID of the source chain
* @custom:field sourceChainId Chain ID of the Omni consensus chain
* @custom:field confLevel Confirmation level of the cross chain block
* @custom:field offset Offset of the cross chain block
* @custom:field sourceBlockHeight Height of the source chain block
* @custom:field sourceBlockHash Hash of the source chain block
*/
struct BlockHeader {
uint64 sourceChainId;
uint64 consensusChainId;
uint8 confLevel;
uint64 offset;
uint64 sourceBlockHeight;
bytes32 sourceBlockHash;
}
/**
* @notice The required parameters to submit xmsgs to an OmniPortal. Constructed by the relayer
* by watching Omni's consensus chain, and source chain blocks.
* @custom:field attestationRoot Merkle root of xchain block (XBlockRoot), attested to and signed by validators
* @custom:field validatorSetId Unique identifier of the validator set that attested to this root
* @custom:field blockHeader Block header, identifies xchain block
* @custom:field msgs Messages to execute
* @custom:field proof Multi proof of block header and messages, proven against attestationRoot
* @custom:field proofFlags Multi proof flags
* @custom:field signatures Array of validator signatures of the attestationRoot, and their public keys
*/
struct Submission {
bytes32 attestationRoot;
uint64 validatorSetId;
BlockHeader blockHeader;
Msg[] msgs;
bytes32[] proof;
bool[] proofFlags;
SigTuple[] signatures;
}
/**
* @notice A tuple of a validator's ethereum address and signature over some digest.
* @custom:field validatorAddr Validator ethereum address
* @custom:field signature Validator signature over some digest; Ethereum 65 bytes [R || S || V] format.
*/
struct SigTuple {
address validatorAddr;
bytes signature;
}
/**
* @notice An Omni validator, specified by their etheruem address and voting power.
* @custom:field addr Validator ethereum address
* @custom:field power Validator voting power
*/
struct Validator {
address addr;
uint64 power;
}
/**
* @notice A chain in the "omni network" specified by its chain ID and supported shards.
* @custom:field chainId Chain ID
* @custom:field shards Supported shards
*/
struct Chain {
uint64 chainId;
uint64[] shards;
}
}// SPDX-License-Identifier: GPL-3.0-only
pragma solidity =0.8.24;
import { ECDSA } from "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
import { XTypes } from "./XTypes.sol";
/**
* @title Quorom
* @dev Defines quorum verification logic.
*/
library Quorum {
/**
* @notice Verifies that the given percentage of the total power has signed the given digest.
* @param digest Signed hash
* @param sigs Signatures to verify, must be sorted by validator address
* @param validators Maps validator addresses to their voting power
* @param totalPower Total voting power
* @param qNumerator Numerator of the quorum threshold. Ex: 2/3 -> 2
* @param qDenominator Denominator of the quorum threshold. Ex: 2/3 -> 3
*/
function verify(
bytes32 digest,
XTypes.SigTuple[] calldata sigs,
mapping(address => uint64) storage validators,
uint64 totalPower,
uint8 qNumerator,
uint8 qDenominator
) internal view returns (bool) {
uint64 votedPower;
XTypes.SigTuple calldata sig;
for (uint256 i = 0; i < sigs.length; i++) {
sig = sigs[i];
if (i > 0) {
XTypes.SigTuple memory prev = sigs[i - 1];
require(sig.validatorAddr != prev.validatorAddr, "Quorum: duplicate validator");
require(sig.validatorAddr > prev.validatorAddr, "Quorum: sigs not sorted");
}
require(_isValidSig(sig, digest), "Quorum: invalid signature");
votedPower += validators[sig.validatorAddr];
if (_isQuorum(votedPower, totalPower, qNumerator, qDenominator)) return true;
}
return false;
}
/// @dev True if SigTuple.sig is a valid ECDSA signature over the given digest for SigTuple.addr, else false.
function _isValidSig(XTypes.SigTuple calldata sig, bytes32 digest) internal pure returns (bool) {
return ECDSA.recover(digest, sig.signature) == sig.validatorAddr;
}
/// @dev True if votedPower exceeds the quorum threshold of numerator/denominator, else false.
function _isQuorum(uint64 votedPower, uint64 totalPower, uint8 numerator, uint8 denominator)
private
pure
returns (bool)
{
return votedPower > (totalPower * numerator) / denominator;
}
}// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.12;
/**
* @title ConfLevel
* @notice XMsg confirmation levels. Matches ConfLevels in lib/xchain/types.go
* @dev We prefer explicit constants over Enums, because we want uint8 values to start at 1, not 0, as they do in
* lib/xchain/types.go, such that 0 can represent "unset". Note only latest and finalized levels are supported
* on-chain.
*/
library ConfLevel {
/**
* @notice XMsg confirmation level "latest", last byte of xmsg.shardId.
*/
uint8 internal constant Latest = 1;
/**
* @notice XMsg confirmation level "finalized", last byte of xmsg.shardId.
*/
uint8 internal constant Finalized = 4;
/**
* @notice Returns true if the given level is valid.
*/
function isValid(uint8 level) internal pure returns (bool) {
return level == Latest || level == Finalized;
}
/**
* @notice Returns broadcast shard version of the given level.
*/
function toBroadcastShard(uint8 level) internal pure returns (uint64) {
return uint64(level) | 0x0100;
}
}// SPDX-License-Identifier: GPL-3.0-only
pragma solidity =0.8.24;
/**
* @title Pausable
* @notice Contract module which provides a way to pause certain functions by key.
* @dev We use a map of bytes32 key to bools, rather than uint256 bitmap, to allow keys to be generated dynamically.
* This allows for flexible pausing, but at higher gas cost.
*/
contract PausableUpgradeable {
/// @custom:storage-location erc7201:omni.storage.Pauseable
struct PauseableStorage {
mapping(bytes32 => bool) _paused;
}
// keccak256(abi.encode(uint256(keccak256("omni.storage.Pauseable")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant PausableStorageSlot = 0xff37105740f03695c8f3597f3aff2b92fbe1c80abea3c28731ecff2efd693400;
function _getPauseableStorage() internal pure returns (PauseableStorage storage $) {
assembly {
$.slot := PausableStorageSlot
}
}
/**
* @dev Special key for pausing all keys.
*/
bytes32 public constant KeyPauseAll = keccak256("PAUSE_ALL");
/**
* @notice Pause by key.
*/
function _pause(bytes32 key) internal {
PauseableStorage storage $ = _getPauseableStorage();
require(!$._paused[key], "Pausable: paused");
$._paused[key] = true;
}
/**
* @notice Unpause by key.
*/
function _unpause(bytes32 key) internal {
PauseableStorage storage $ = _getPauseableStorage();
require($._paused[key], "Pausable: not paused");
$._paused[key] = false;
}
/**
* @notice Returns true if `key` is paused, or all keys are paused.
*/
function _isPaused(bytes32 key) internal view returns (bool) {
PauseableStorage storage $ = _getPauseableStorage();
return $._paused[KeyPauseAll] || $._paused[key];
}
/**
* @notice Returns true if either `key1` or `key2` is paused, or all keys are paused.
*/
function _isPaused(bytes32 key1, bytes32 key2) internal view returns (bool) {
PauseableStorage storage $ = _getPauseableStorage();
return $._paused[KeyPauseAll] || $._paused[key1] || $._paused[key2];
}
/**
* @notice Returns true if all keys are paused.
*/
function _isAllPaused() internal view returns (bool) {
PauseableStorage storage $ = _getPauseableStorage();
return $._paused[KeyPauseAll];
}
/**
* @notice Pause all keys.
*/
function _pauseAll() internal {
_pause(KeyPauseAll);
}
/**
* @notice Unpause all keys.
*/
function _unpauseAll() internal {
_unpause(KeyPauseAll);
}
}// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.12;
/**
* @title OmniPortalConstants
* @notice Constants used by the OmniPortal contract
*/
contract OmniPortalConstants {
/**
* @notice Numerator of the fraction of total validator power required to accept an XSubmission. Ex 2/3 -> 2
*/
uint8 public constant XSubQuorumNumerator = 2;
/**
* @notice Denominator of the fraction of total validator power required to accept an XSubmission. Ex 2/3 -> 3
*/
uint8 public constant XSubQuorumDenominator = 3;
/**
* @notice Action ID for xsubmissions, used as Pauseable key
*/
bytes32 public constant ActionXSubmit = keccak256("xsubmit");
/**
* @notice Action ID for xcalls, used as Pauseable key
*/
bytes32 public constant ActionXCall = keccak256("xcall");
/**
* @dev xmsg.destChainId for "broadcast" xcalls, intended for all portals
*/
uint64 internal constant BroadcastChainId = 0;
/**
* @dev xmg.sender for xmsgs from Omni's consensus chain
*/
address internal constant CChainSender = address(0);
/**
* @dev xmsg.to for xcalls to be executed on the portal itself
*/
address internal constant VirtualPortalAddress = address(0);
}// SPDX-License-Identifier: GPL-3.0-only
pragma solidity =0.8.24;
import { IOmniPortal } from "../interfaces/IOmniPortal.sol";
import { IOmniPortalAdmin } from "../interfaces/IOmniPortalAdmin.sol";
import { XTypes } from "../libraries/XTypes.sol";
/**
* @title OmniPortalStorage
* @notice Storage layout for OmniPortal
*/
abstract contract OmniPortalStorage is IOmniPortal, IOmniPortalAdmin {
/**
* @notice Number of validator sets since the latest that can be used to validate an XSubmission
*/
uint8 public xsubValsetCutoff;
/**
* @notice Maxium number of bytes allowed in xreceipt result
*/
uint16 public xreceiptMaxErrorSize;
/**
* @notice Maximum number of bytes allowed in xmsg data
*/
uint16 public xmsgMaxDataSize;
/**
* @notice Maximum allowed xmsg gas limit
*/
uint64 public xmsgMaxGasLimit;
/**
* @notice Minimum allowed xmsg gas limit
*/
uint64 public xmsgMinGasLimit;
/**
* @notice ID of the latest validator set relayed to this portal from the consensus chain.
*/
uint64 public latestValSetId;
/**
* @notice Chain ID of Omni's EVM execution chain
*/
uint64 public omniChainId;
/**
* @notice Virtual Chain ID of Omni's consensus chain
*/
uint64 public omniCChainId;
/**
* @notice The address of the fee oracle contract
*/
address public feeOracle;
/**
* @notice A list of supported chains & shards.
*/
XTypes.Chain[] public network;
/**
* @notice Maps shard ID to true, if the shard is supported.
*/
mapping(uint64 => bool) public isSupportedShard;
/**
* @notice Maps chain ID to true, if the chain is supported.
*/
mapping(uint64 => bool) public isSupportedDest;
/**
* @notice Offset of the last outbound XMsg that was sent to destChainId in shardId
* Maps destChainId -> shardId -> offset.
*/
mapping(uint64 => mapping(uint64 => uint64)) public outXMsgOffset;
/**
* @notice Offset of the last outbound XMsg that was sent to destChainId in shardId
* Maps destChainId -> shardId -> offset.
*/
mapping(uint64 => mapping(uint64 => uint64)) public inXMsgOffset;
/**
* @notice The xblock offset of the last inbound XMsg that was received from sourceChainId in shardIdj
* Maps sourceChainId -> shardId -> xblockOffset.
*/
mapping(uint64 => mapping(uint64 => uint64)) public inXBlockOffset;
/**
* @notice Maps validator set id -> total power
*/
mapping(uint64 => uint64) public valSetTotalPower;
/**
* @notice Maps validator set id -> validator address -> power
*/
mapping(uint64 => mapping(address => uint64)) public valSet;
/**
* @notice The current XMsg being executed, exposed via xmsg() getter
* @dev Internal state + public getter preferred over public state with default getter
* so that we can use the XMsg struct type in the interface.
*/
XTypes.MsgContext internal _xmsg;
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)
pragma solidity ^0.8.20;
import {Initializable} from "../proxy/utils/Initializable.sol";
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract ContextUpgradeable is Initializable {
function __Context_init() internal onlyInitializing {
}
function __Context_init_unchained() internal onlyInitializing {
}
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
function _contextSuffixLength() internal view virtual returns (uint256) {
return 0;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/utils/Initializable.sol)
pragma solidity ^0.8.20;
/**
* @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]
* ```solidity
* 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 Storage of the initializable contract.
*
* It's implemented on a custom ERC-7201 namespace to reduce the risk of storage collisions
* when using with upgradeable contracts.
*
* @custom:storage-location erc7201:openzeppelin.storage.Initializable
*/
struct InitializableStorage {
/**
* @dev Indicates that the contract has been initialized.
*/
uint64 _initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool _initializing;
}
// keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Initializable")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant INITIALIZABLE_STORAGE = 0xf0c57e16840df040f15088dc2f81fe391c3923bec73e23a9662efc9c229c6a00;
/**
* @dev The contract is already initialized.
*/
error InvalidInitialization();
/**
* @dev The contract is not initializing.
*/
error NotInitializing();
/**
* @dev Triggered when the contract has been initialized or reinitialized.
*/
event Initialized(uint64 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.
*
* Similar to `reinitializer(1)`, except that in the context of a constructor an `initializer` may be invoked any
* number of times. This behavior in the constructor can be useful during testing and is not expected to be used in
* production.
*
* Emits an {Initialized} event.
*/
modifier initializer() {
// solhint-disable-next-line var-name-mixedcase
InitializableStorage storage $ = _getInitializableStorage();
// Cache values to avoid duplicated sloads
bool isTopLevelCall = !$._initializing;
uint64 initialized = $._initialized;
// Allowed calls:
// - initialSetup: the contract is not in the initializing state and no previous version was
// initialized
// - construction: the contract is initialized at version 1 (no reininitialization) and the
// current contract is just being deployed
bool initialSetup = initialized == 0 && isTopLevelCall;
bool construction = initialized == 1 && address(this).code.length == 0;
if (!initialSetup && !construction) {
revert InvalidInitialization();
}
$._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.
*
* 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.
*
* When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
* cannot be nested. If one is invoked in the context of another, execution will revert.
*
* 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.
*
* WARNING: Setting the version to 2**64 - 1 will prevent any future reinitialization.
*
* Emits an {Initialized} event.
*/
modifier reinitializer(uint64 version) {
// solhint-disable-next-line var-name-mixedcase
InitializableStorage storage $ = _getInitializableStorage();
if ($._initializing || $._initialized >= version) {
revert InvalidInitialization();
}
$._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() {
_checkInitializing();
_;
}
/**
* @dev Reverts if the contract is not in an initializing state. See {onlyInitializing}.
*/
function _checkInitializing() internal view virtual {
if (!_isInitializing()) {
revert NotInitializing();
}
}
/**
* @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.
*
* Emits an {Initialized} event the first time it is successfully executed.
*/
function _disableInitializers() internal virtual {
// solhint-disable-next-line var-name-mixedcase
InitializableStorage storage $ = _getInitializableStorage();
if ($._initializing) {
revert InvalidInitialization();
}
if ($._initialized != type(uint64).max) {
$._initialized = type(uint64).max;
emit Initialized(type(uint64).max);
}
}
/**
* @dev Returns the highest version that has been initialized. See {reinitializer}.
*/
function _getInitializedVersion() internal view returns (uint64) {
return _getInitializableStorage()._initialized;
}
/**
* @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
*/
function _isInitializing() internal view returns (bool) {
return _getInitializableStorage()._initializing;
}
/**
* @dev Returns a pointer to the storage namespace.
*/
// solhint-disable-next-line var-name-mixedcase
function _getInitializableStorage() private pure returns (InitializableStorage storage $) {
assembly {
$.slot := INITIALIZABLE_STORAGE
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/MerkleProof.sol)
pragma solidity ^0.8.20;
/**
* @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 MerkleProof {
/**
*@dev The multiproof provided is not valid.
*/
error MerkleProofInvalidMultiproof();
/**
* @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
* defined by `root`. For this, a `proof` must be provided, containing
* sibling hashes on the branch from the leaf to the root of the tree. Each
* pair of leaves and each pair of pre-images are assumed to be sorted.
*/
function verify(bytes32[] memory proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {
return processProof(proof, leaf) == root;
}
/**
* @dev Calldata version of {verify}
*/
function verifyCalldata(bytes32[] calldata proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {
return processProofCalldata(proof, leaf) == 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. When processing the proof, the pairs
* of leafs & pre-images are assumed to be sorted.
*/
function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) {
bytes32 computedHash = leaf;
for (uint256 i = 0; i < proof.length; i++) {
computedHash = _hashPair(computedHash, proof[i]);
}
return computedHash;
}
/**
* @dev Calldata version of {processProof}
*/
function processProofCalldata(bytes32[] calldata proof, bytes32 leaf) internal pure returns (bytes32) {
bytes32 computedHash = leaf;
for (uint256 i = 0; i < proof.length; i++) {
computedHash = _hashPair(computedHash, proof[i]);
}
return computedHash;
}
/**
* @dev Returns true if the `leaves` can be simultaneously proven to be a part of a Merkle tree defined by
* `root`, according to `proof` and `proofFlags` as described in {processMultiProof}.
*
* CAUTION: Not all Merkle trees admit multiproofs. See {processMultiProof} for details.
*/
function multiProofVerify(
bytes32[] memory proof,
bool[] memory proofFlags,
bytes32 root,
bytes32[] memory leaves
) internal pure returns (bool) {
return processMultiProof(proof, proofFlags, leaves) == root;
}
/**
* @dev Calldata version of {multiProofVerify}
*
* CAUTION: Not all Merkle trees admit multiproofs. See {processMultiProof} for details.
*/
function multiProofVerifyCalldata(
bytes32[] calldata proof,
bool[] calldata proofFlags,
bytes32 root,
bytes32[] memory leaves
) internal pure returns (bool) {
return processMultiProofCalldata(proof, proofFlags, leaves) == root;
}
/**
* @dev Returns the root of a tree reconstructed from `leaves` and sibling nodes in `proof`. The reconstruction
* proceeds by incrementally reconstructing all inner nodes by combining a leaf/inner node with either another
* leaf/inner node or a proof sibling node, depending on whether each `proofFlags` item is true or false
* respectively.
*
* CAUTION: Not all Merkle trees admit multiproofs. To use multiproofs, it is sufficient to ensure that: 1) the tree
* is complete (but not necessarily perfect), 2) the leaves to be proven are in the opposite order they are in the
* tree (i.e., as seen from right to left starting at the deepest layer and continuing at the next layer).
*/
function processMultiProof(
bytes32[] memory proof,
bool[] memory proofFlags,
bytes32[] memory leaves
) internal pure returns (bytes32 merkleRoot) {
// This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by
// consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
// `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
// the Merkle tree.
uint256 leavesLen = leaves.length;
uint256 proofLen = proof.length;
uint256 totalHashes = proofFlags.length;
// Check proof validity.
if (leavesLen + proofLen != totalHashes + 1) {
revert MerkleProofInvalidMultiproof();
}
// The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
// `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
bytes32[] memory hashes = new bytes32[](totalHashes);
uint256 leafPos = 0;
uint256 hashPos = 0;
uint256 proofPos = 0;
// At each step, we compute the next hash using two values:
// - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
// get the next hash.
// - depending on the flag, either another value from the "main queue" (merging branches) or an element from the
// `proof` array.
for (uint256 i = 0; i < totalHashes; i++) {
bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
bytes32 b = proofFlags[i]
? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])
: proof[proofPos++];
hashes[i] = _hashPair(a, b);
}
if (totalHashes > 0) {
if (proofPos != proofLen) {
revert MerkleProofInvalidMultiproof();
}
unchecked {
return hashes[totalHashes - 1];
}
} else if (leavesLen > 0) {
return leaves[0];
} else {
return proof[0];
}
}
/**
* @dev Calldata version of {processMultiProof}.
*
* CAUTION: Not all Merkle trees admit multiproofs. See {processMultiProof} for details.
*/
function processMultiProofCalldata(
bytes32[] calldata proof,
bool[] calldata proofFlags,
bytes32[] memory leaves
) internal pure returns (bytes32 merkleRoot) {
// This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by
// consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
// `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
// the Merkle tree.
uint256 leavesLen = leaves.length;
uint256 proofLen = proof.length;
uint256 totalHashes = proofFlags.length;
// Check proof validity.
if (leavesLen + proofLen != totalHashes + 1) {
revert MerkleProofInvalidMultiproof();
}
// The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
// `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
bytes32[] memory hashes = new bytes32[](totalHashes);
uint256 leafPos = 0;
uint256 hashPos = 0;
uint256 proofPos = 0;
// At each step, we compute the next hash using two values:
// - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
// get the next hash.
// - depending on the flag, either another value from the "main queue" (merging branches) or an element from the
// `proof` array.
for (uint256 i = 0; i < totalHashes; i++) {
bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
bytes32 b = proofFlags[i]
? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])
: proof[proofPos++];
hashes[i] = _hashPair(a, b);
}
if (totalHashes > 0) {
if (proofPos != proofLen) {
revert MerkleProofInvalidMultiproof();
}
unchecked {
return hashes[totalHashes - 1];
}
} else if (leavesLen > 0) {
return leaves[0];
} else {
return proof[0];
}
}
/**
* @dev Sorts the pair (a, b) and hashes the result.
*/
function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) {
return a < b ? _efficientHash(a, b) : _efficientHash(b, a);
}
/**
* @dev Implementation of keccak256(abi.encode(a, b)) that doesn't allocate or expand memory.
*/
function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) {
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, a)
mstore(0x20, b)
value := keccak256(0x00, 0x40)
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/ECDSA.sol)
pragma solidity ^0.8.20;
/**
* @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
*
* These functions can be used to verify that a message was signed by the holder
* of the private keys of a given address.
*/
library ECDSA {
enum RecoverError {
NoError,
InvalidSignature,
InvalidSignatureLength,
InvalidSignatureS
}
/**
* @dev The signature derives the `address(0)`.
*/
error ECDSAInvalidSignature();
/**
* @dev The signature has an invalid length.
*/
error ECDSAInvalidSignatureLength(uint256 length);
/**
* @dev The signature has an S value that is in the upper half order.
*/
error ECDSAInvalidSignatureS(bytes32 s);
/**
* @dev Returns the address that signed a hashed message (`hash`) with `signature` or an error. This will not
* return address(0) without also returning an error description. Errors are documented using an enum (error type)
* and a bytes32 providing additional information about the error.
*
* If no error is returned, then the address can be used for verification purposes.
*
* The `ecrecover` EVM precompile allows for malleable (non-unique) signatures:
* this function rejects them by requiring the `s` value to be in the lower
* half order, and the `v` value to be either 27 or 28.
*
* IMPORTANT: `hash` _must_ be the result of a hash operation for the
* verification to be secure: it is possible to craft signatures that
* recover to arbitrary addresses for non-hashed data. A safe way to ensure
* this is by receiving a hash of the original message (which may otherwise
* be too long), and then calling {MessageHashUtils-toEthSignedMessageHash} on it.
*
* Documentation for signature generation:
* - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
* - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
*/
function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError, bytes32) {
if (signature.length == 65) {
bytes32 r;
bytes32 s;
uint8 v;
// ecrecover takes the signature parameters, and the only way to get them
// currently is to use assembly.
/// @solidity memory-safe-assembly
assembly {
r := mload(add(signature, 0x20))
s := mload(add(signature, 0x40))
v := byte(0, mload(add(signature, 0x60)))
}
return tryRecover(hash, v, r, s);
} else {
return (address(0), RecoverError.InvalidSignatureLength, bytes32(signature.length));
}
}
/**
* @dev Returns the address that signed a hashed message (`hash`) with
* `signature`. This address can then be used for verification purposes.
*
* The `ecrecover` EVM precompile allows for malleable (non-unique) signatures:
* this function rejects them by requiring the `s` value to be in the lower
* half order, and the `v` value to be either 27 or 28.
*
* IMPORTANT: `hash` _must_ be the result of a hash operation for the
* verification to be secure: it is possible to craft signatures that
* recover to arbitrary addresses for non-hashed data. A safe way to ensure
* this is by receiving a hash of the original message (which may otherwise
* be too long), and then calling {MessageHashUtils-toEthSignedMessageHash} on it.
*/
function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
(address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, signature);
_throwError(error, errorArg);
return recovered;
}
/**
* @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
*
* See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
*/
function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError, bytes32) {
unchecked {
bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
// We do not check for an overflow here since the shift operation results in 0 or 1.
uint8 v = uint8((uint256(vs) >> 255) + 27);
return tryRecover(hash, v, r, s);
}
}
/**
* @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
*/
function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) {
(address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, r, vs);
_throwError(error, errorArg);
return recovered;
}
/**
* @dev Overload of {ECDSA-tryRecover} that receives the `v`,
* `r` and `s` signature fields separately.
*/
function tryRecover(
bytes32 hash,
uint8 v,
bytes32 r,
bytes32 s
) internal pure returns (address, RecoverError, bytes32) {
// EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
// unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
// the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
// signatures from current libraries generate a unique signature with an s-value in the lower half order.
//
// If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
// with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
// vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
// these malleable signatures as well.
if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
return (address(0), RecoverError.InvalidSignatureS, s);
}
// If the signature is valid (and not malleable), return the signer address
address signer = ecrecover(hash, v, r, s);
if (signer == address(0)) {
return (address(0), RecoverError.InvalidSignature, bytes32(0));
}
return (signer, RecoverError.NoError, bytes32(0));
}
/**
* @dev Overload of {ECDSA-recover} that receives the `v`,
* `r` and `s` signature fields separately.
*/
function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {
(address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, v, r, s);
_throwError(error, errorArg);
return recovered;
}
/**
* @dev Optionally reverts with the corresponding custom error according to the `error` argument provided.
*/
function _throwError(RecoverError error, bytes32 errorArg) private pure {
if (error == RecoverError.NoError) {
return; // no error: do nothing
} else if (error == RecoverError.InvalidSignature) {
revert ECDSAInvalidSignature();
} else if (error == RecoverError.InvalidSignatureLength) {
revert ECDSAInvalidSignatureLength(uint256(errorArg));
} else if (error == RecoverError.InvalidSignatureS) {
revert ECDSAInvalidSignatureS(errorArg);
}
}
}{
"remappings": [
"forge-std/=node_modules/forge-std/src/",
"ds-test/=node_modules/ds-test/src/",
"src/=src/",
"test/=test/",
"avs/=../avs/src/",
"@openzeppelin-upgrades/contracts/=node_modules/@openzeppelin/contracts-upgradeable/",
"@nomad-xyz/=node_modules/@nomad-xyz/",
"@openzeppelin-v4/=node_modules/@openzeppelin-v4/",
"@openzeppelin/=node_modules/@openzeppelin/",
"eigenlayer-contracts/=node_modules/eigenlayer-contracts/",
"eigenlayer-middleware/=node_modules/eigenlayer-middleware/",
"solmate/=node_modules/solmate/"
],
"optimizer": {
"enabled": true,
"runs": 200
},
"metadata": {
"useLiteralContent": false,
"bytecodeHash": "ipfs",
"appendCBOR": true
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
},
"evmVersion": "paris",
"viaIR": false,
"libraries": {}
}Contract ABI
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XTypes.Submission","name":"xsub","type":"tuple"}],"name":"xsubmit","outputs":[],"stateMutability":"nonpayable","type":"function"}]Contract Creation Code
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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.