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Similar Match Source Code This contract matches the deployed Bytecode of the Source Code for Contract 0x69c24c97...B7d78f93A The constructor portion of the code might be different and could alter the actual behaviour of the contract
Contract Name:
LockReleaseTokenPool
Compiler Version
v0.8.19+commit.7dd6d404
Optimization Enabled:
Yes with 1000000 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: BUSL-1.1 pragma solidity 0.8.19; import {ITypeAndVersion} from "../../shared/interfaces/ITypeAndVersion.sol"; import {ILiquidityContainer} from "../../rebalancer/interfaces/ILiquidityContainer.sol"; import {TokenPool} from "./TokenPool.sol"; import {RateLimiter} from "../libraries/RateLimiter.sol"; import {IERC20} from "../../vendor/openzeppelin-solidity/v4.8.3/contracts/token/ERC20/IERC20.sol"; import {SafeERC20} from "../../vendor/openzeppelin-solidity/v4.8.3/contracts/token/ERC20/utils/SafeERC20.sol"; /// @notice Token pool used for tokens on their native chain. This uses a lock and release mechanism. /// Because of lock/unlock requiring liquidity, this pool contract also has function to add and remove /// liquidity. This allows for proper bookkeeping for both user and liquidity provider balances. /// @dev One token per LockReleaseTokenPool. contract LockReleaseTokenPool is TokenPool, ILiquidityContainer, ITypeAndVersion { using SafeERC20 for IERC20; error InsufficientLiquidity(); error LiquidityNotAccepted(); error Unauthorized(address caller); string public constant override typeAndVersion = "LockReleaseTokenPool 1.4.0"; /// @dev The unique lock release pool flag to signal through EIP 165. bytes4 private constant LOCK_RELEASE_INTERFACE_ID = bytes4(keccak256("LockReleaseTokenPool")); /// @dev Whether or not the pool accepts liquidity. /// External liquidity is not required when there is one canonical token deployed to a chain, /// and CCIP is facilitating mint/burn on all the other chains, in which case the invariant /// balanceOf(pool) on home chain == sum(totalSupply(mint/burn "wrapped" token) on all remote chains) should always hold bool internal immutable i_acceptLiquidity; /// @notice The address of the rebalancer. address internal s_rebalancer; /// @notice The address of the rate limiter admin. /// @dev Can be address(0) if none is configured. address internal s_rateLimitAdmin; constructor( IERC20 token, address[] memory allowlist, address armProxy, bool acceptLiquidity, address router ) TokenPool(token, allowlist, armProxy, router) { i_acceptLiquidity = acceptLiquidity; } /// @notice Locks the token in the pool /// @param amount Amount to lock /// @dev The whenHealthy check is important to ensure that even if a ramp is compromised /// we're able to stop token movement via ARM. function lockOrBurn( address originalSender, bytes calldata, uint256 amount, uint64 remoteChainSelector, bytes calldata ) external virtual override onlyOnRamp(remoteChainSelector) checkAllowList(originalSender) whenHealthy returns (bytes memory) { _consumeOutboundRateLimit(remoteChainSelector, amount); emit Locked(msg.sender, amount); return ""; } /// @notice Release tokens from the pool to the recipient /// @param receiver Recipient address /// @param amount Amount to release /// @dev The whenHealthy check is important to ensure that even if a ramp is compromised /// we're able to stop token movement via ARM. function releaseOrMint( bytes memory, address receiver, uint256 amount, uint64 remoteChainSelector, bytes memory ) external virtual override onlyOffRamp(remoteChainSelector) whenHealthy { _consumeInboundRateLimit(remoteChainSelector, amount); getToken().safeTransfer(receiver, amount); emit Released(msg.sender, receiver, amount); } /// @notice returns the lock release interface flag used for EIP165 identification. function getLockReleaseInterfaceId() public pure returns (bytes4) { return LOCK_RELEASE_INTERFACE_ID; } // @inheritdoc IERC165 function supportsInterface(bytes4 interfaceId) public pure virtual override returns (bool) { return interfaceId == LOCK_RELEASE_INTERFACE_ID || interfaceId == type(ILiquidityContainer).interfaceId || super.supportsInterface(interfaceId); } /// @notice Gets Rebalancer, can be address(0) if none is configured. /// @return The current liquidity manager. function getRebalancer() external view returns (address) { return s_rebalancer; } /// @notice Sets the Rebalancer address. /// @dev Only callable by the owner. function setRebalancer(address rebalancer) external onlyOwner { s_rebalancer = rebalancer; } /// @notice Sets the rate limiter admin address. /// @dev Only callable by the owner. /// @param rateLimitAdmin The new rate limiter admin address. function setRateLimitAdmin(address rateLimitAdmin) external onlyOwner { s_rateLimitAdmin = rateLimitAdmin; } /// @notice Gets the rate limiter admin address. function getRateLimitAdmin() external view returns (address) { return s_rateLimitAdmin; } /// @notice Checks if the pool can accept liquidity. /// @return true if the pool can accept liquidity, false otherwise. function canAcceptLiquidity() external view returns (bool) { return i_acceptLiquidity; } /// @notice Adds liquidity to the pool. The tokens should be approved first. /// @param amount The amount of liquidity to provide. function provideLiquidity(uint256 amount) external { if (!i_acceptLiquidity) revert LiquidityNotAccepted(); if (s_rebalancer != msg.sender) revert Unauthorized(msg.sender); i_token.safeTransferFrom(msg.sender, address(this), amount); emit LiquidityAdded(msg.sender, amount); } /// @notice Removed liquidity to the pool. The tokens will be sent to msg.sender. /// @param amount The amount of liquidity to remove. function withdrawLiquidity(uint256 amount) external { if (s_rebalancer != msg.sender) revert Unauthorized(msg.sender); if (i_token.balanceOf(address(this)) < amount) revert InsufficientLiquidity(); i_token.safeTransfer(msg.sender, amount); emit LiquidityRemoved(msg.sender, amount); } /// @notice Sets the rate limiter admin address. /// @dev Only callable by the owner or the rate limiter admin. NOTE: overwrites the normal /// onlyAdmin check in the base implementation to also allow the rate limiter admin. /// @param remoteChainSelector The remote chain selector for which the rate limits apply. /// @param outboundConfig The new outbound rate limiter config. /// @param inboundConfig The new inbound rate limiter config. function setChainRateLimiterConfig( uint64 remoteChainSelector, RateLimiter.Config memory outboundConfig, RateLimiter.Config memory inboundConfig ) external override { if (msg.sender != s_rateLimitAdmin && msg.sender != owner()) revert Unauthorized(msg.sender); _setRateLimitConfig(remoteChainSelector, outboundConfig, inboundConfig); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; interface ITypeAndVersion { function typeAndVersion() external pure returns (string memory); }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.0; /// @notice Interface for a liquidity container, this can be a CCIP token pool. interface ILiquidityContainer { event LiquidityAdded(address indexed provider, uint256 indexed amount); event LiquidityRemoved(address indexed provider, uint256 indexed amount); /// @notice Provide additional liquidity to the container. /// @dev Should emit LiquidityAdded function provideLiquidity(uint256 amount) external; /// @notice Withdraws liquidity from the container to the msg sender /// @dev Should emit LiquidityRemoved function withdrawLiquidity(uint256 amount) external; }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity 0.8.19; import {IPool} from "../interfaces/pools/IPool.sol"; import {IARM} from "../interfaces/IARM.sol"; import {IRouter} from "../interfaces/IRouter.sol"; import {OwnerIsCreator} from "../../shared/access/OwnerIsCreator.sol"; import {RateLimiter} from "../libraries/RateLimiter.sol"; import {IERC20} from "../../vendor/openzeppelin-solidity/v4.8.3/contracts/token/ERC20/IERC20.sol"; import {IERC165} from "../../vendor/openzeppelin-solidity/v4.8.3/contracts/utils/introspection/IERC165.sol"; import {EnumerableSet} from "../../vendor/openzeppelin-solidity/v4.8.3/contracts/utils/structs/EnumerableSet.sol"; /// @notice Base abstract class with common functions for all token pools. /// A token pool serves as isolated place for holding tokens and token specific logic /// that may execute as tokens move across the bridge. abstract contract TokenPool is IPool, OwnerIsCreator, IERC165 { using EnumerableSet for EnumerableSet.AddressSet; using EnumerableSet for EnumerableSet.UintSet; using RateLimiter for RateLimiter.TokenBucket; error CallerIsNotARampOnRouter(address caller); error ZeroAddressNotAllowed(); error SenderNotAllowed(address sender); error AllowListNotEnabled(); error NonExistentChain(uint64 remoteChainSelector); error ChainNotAllowed(uint64 remoteChainSelector); error BadARMSignal(); error ChainAlreadyExists(uint64 chainSelector); event Locked(address indexed sender, uint256 amount); event Burned(address indexed sender, uint256 amount); event Released(address indexed sender, address indexed recipient, uint256 amount); event Minted(address indexed sender, address indexed recipient, uint256 amount); event ChainAdded( uint64 remoteChainSelector, RateLimiter.Config outboundRateLimiterConfig, RateLimiter.Config inboundRateLimiterConfig ); event ChainConfigured( uint64 remoteChainSelector, RateLimiter.Config outboundRateLimiterConfig, RateLimiter.Config inboundRateLimiterConfig ); event ChainRemoved(uint64 remoteChainSelector); event AllowListAdd(address sender); event AllowListRemove(address sender); event RouterUpdated(address oldRouter, address newRouter); struct ChainUpdate { uint64 remoteChainSelector; // ──╮ Remote chain selector bool allowed; // ────────────────╯ Whether the chain is allowed RateLimiter.Config outboundRateLimiterConfig; // Outbound rate limited config, meaning the rate limits for all of the onRamps for the given chain RateLimiter.Config inboundRateLimiterConfig; // Inbound rate limited config, meaning the rate limits for all of the offRamps for the given chain } /// @dev The bridgeable token that is managed by this pool. IERC20 internal immutable i_token; /// @dev The address of the arm proxy address internal immutable i_armProxy; /// @dev The immutable flag that indicates if the pool is access-controlled. bool internal immutable i_allowlistEnabled; /// @dev A set of addresses allowed to trigger lockOrBurn as original senders. /// Only takes effect if i_allowlistEnabled is true. /// This can be used to ensure only token-issuer specified addresses can /// move tokens. EnumerableSet.AddressSet internal s_allowList; /// @dev The address of the router IRouter internal s_router; /// @dev A set of allowed chain selectors. We want the allowlist to be enumerable to /// be able to quickly determine (without parsing logs) who can access the pool. /// @dev The chain selectors are in uin256 format because of the EnumerableSet implementation. EnumerableSet.UintSet internal s_remoteChainSelectors; /// @dev Outbound rate limits. Corresponds to the inbound rate limit for the pool /// on the remote chain. mapping(uint64 remoteChainSelector => RateLimiter.TokenBucket) internal s_outboundRateLimits; /// @dev Inbound rate limits. This allows per destination chain /// token issuer specified rate limiting (e.g. issuers may trust chains to varying /// degrees and prefer different limits) mapping(uint64 remoteChainSelector => RateLimiter.TokenBucket) internal s_inboundRateLimits; constructor(IERC20 token, address[] memory allowlist, address armProxy, address router) { if (address(token) == address(0) || router == address(0)) revert ZeroAddressNotAllowed(); i_token = token; i_armProxy = armProxy; s_router = IRouter(router); // Pool can be set as permissioned or permissionless at deployment time only to save hot-path gas. i_allowlistEnabled = allowlist.length > 0; if (i_allowlistEnabled) { _applyAllowListUpdates(new address[](0), allowlist); } } /// @notice Get ARM proxy address /// @return armProxy Address of arm proxy function getArmProxy() public view returns (address armProxy) { return i_armProxy; } /// @inheritdoc IPool function getToken() public view override returns (IERC20 token) { return i_token; } /// @notice Gets the pool's Router /// @return router The pool's Router function getRouter() public view returns (address router) { return address(s_router); } /// @notice Sets the pool's Router /// @param newRouter The new Router function setRouter(address newRouter) public onlyOwner { if (newRouter == address(0)) revert ZeroAddressNotAllowed(); address oldRouter = address(s_router); s_router = IRouter(newRouter); emit RouterUpdated(oldRouter, newRouter); } /// @inheritdoc IERC165 function supportsInterface(bytes4 interfaceId) public pure virtual override returns (bool) { return interfaceId == type(IPool).interfaceId || interfaceId == type(IERC165).interfaceId; } // ================================================================ // │ Chain permissions │ // ================================================================ /// @notice Checks whether a chain selector is permissioned on this contract. /// @return true if the given chain selector is a permissioned remote chain. function isSupportedChain(uint64 remoteChainSelector) public view returns (bool) { return s_remoteChainSelectors.contains(remoteChainSelector); } /// @notice Get list of allowed chains /// @return list of chains. function getSupportedChains() public view returns (uint64[] memory) { uint256[] memory uint256ChainSelectors = s_remoteChainSelectors.values(); uint64[] memory chainSelectors = new uint64[](uint256ChainSelectors.length); for (uint256 i = 0; i < uint256ChainSelectors.length; ++i) { chainSelectors[i] = uint64(uint256ChainSelectors[i]); } return chainSelectors; } /// @notice Sets the permissions for a list of chains selectors. Actual senders for these chains /// need to be allowed on the Router to interact with this pool. /// @dev Only callable by the owner /// @param chains A list of chains and their new permission status & rate limits. Rate limits /// are only used when the chain is being added through `allowed` being true. function applyChainUpdates(ChainUpdate[] calldata chains) external virtual onlyOwner { for (uint256 i = 0; i < chains.length; ++i) { ChainUpdate memory update = chains[i]; RateLimiter._validateTokenBucketConfig(update.outboundRateLimiterConfig, !update.allowed); RateLimiter._validateTokenBucketConfig(update.inboundRateLimiterConfig, !update.allowed); if (update.allowed) { // If the chain already exists, revert if (!s_remoteChainSelectors.add(update.remoteChainSelector)) { revert ChainAlreadyExists(update.remoteChainSelector); } s_outboundRateLimits[update.remoteChainSelector] = RateLimiter.TokenBucket({ rate: update.outboundRateLimiterConfig.rate, capacity: update.outboundRateLimiterConfig.capacity, tokens: update.outboundRateLimiterConfig.capacity, lastUpdated: uint32(block.timestamp), isEnabled: update.outboundRateLimiterConfig.isEnabled }); s_inboundRateLimits[update.remoteChainSelector] = RateLimiter.TokenBucket({ rate: update.inboundRateLimiterConfig.rate, capacity: update.inboundRateLimiterConfig.capacity, tokens: update.inboundRateLimiterConfig.capacity, lastUpdated: uint32(block.timestamp), isEnabled: update.inboundRateLimiterConfig.isEnabled }); emit ChainAdded(update.remoteChainSelector, update.outboundRateLimiterConfig, update.inboundRateLimiterConfig); } else { // If the chain doesn't exist, revert if (!s_remoteChainSelectors.remove(update.remoteChainSelector)) { revert NonExistentChain(update.remoteChainSelector); } delete s_inboundRateLimits[update.remoteChainSelector]; delete s_outboundRateLimits[update.remoteChainSelector]; emit ChainRemoved(update.remoteChainSelector); } } } // ================================================================ // │ Rate limiting │ // ================================================================ /// @notice Consumes outbound rate limiting capacity in this pool function _consumeOutboundRateLimit(uint64 remoteChainSelector, uint256 amount) internal { s_outboundRateLimits[remoteChainSelector]._consume(amount, address(i_token)); } /// @notice Consumes inbound rate limiting capacity in this pool function _consumeInboundRateLimit(uint64 remoteChainSelector, uint256 amount) internal { s_inboundRateLimits[remoteChainSelector]._consume(amount, address(i_token)); } /// @notice Gets the token bucket with its values for the block it was requested at. /// @return The token bucket. function getCurrentOutboundRateLimiterState( uint64 remoteChainSelector ) external view returns (RateLimiter.TokenBucket memory) { return s_outboundRateLimits[remoteChainSelector]._currentTokenBucketState(); } /// @notice Gets the token bucket with its values for the block it was requested at. /// @return The token bucket. function getCurrentInboundRateLimiterState( uint64 remoteChainSelector ) external view returns (RateLimiter.TokenBucket memory) { return s_inboundRateLimits[remoteChainSelector]._currentTokenBucketState(); } /// @notice Sets the chain rate limiter config. /// @param remoteChainSelector The remote chain selector for which the rate limits apply. /// @param outboundConfig The new outbound rate limiter config, meaning the onRamp rate limits for the given chain. /// @param inboundConfig The new inbound rate limiter config, meaning the offRamp rate limits for the given chain. function setChainRateLimiterConfig( uint64 remoteChainSelector, RateLimiter.Config memory outboundConfig, RateLimiter.Config memory inboundConfig ) external virtual onlyOwner { _setRateLimitConfig(remoteChainSelector, outboundConfig, inboundConfig); } function _setRateLimitConfig( uint64 remoteChainSelector, RateLimiter.Config memory outboundConfig, RateLimiter.Config memory inboundConfig ) internal { if (!isSupportedChain(remoteChainSelector)) revert NonExistentChain(remoteChainSelector); RateLimiter._validateTokenBucketConfig(outboundConfig, false); s_outboundRateLimits[remoteChainSelector]._setTokenBucketConfig(outboundConfig); RateLimiter._validateTokenBucketConfig(inboundConfig, false); s_inboundRateLimits[remoteChainSelector]._setTokenBucketConfig(inboundConfig); emit ChainConfigured(remoteChainSelector, outboundConfig, inboundConfig); } // ================================================================ // │ Access │ // ================================================================ /// @notice Checks whether remote chain selector is configured on this contract, and if the msg.sender /// is a permissioned onRamp for the given chain on the Router. modifier onlyOnRamp(uint64 remoteChainSelector) { if (!isSupportedChain(remoteChainSelector)) revert ChainNotAllowed(remoteChainSelector); if (!(msg.sender == s_router.getOnRamp(remoteChainSelector))) revert CallerIsNotARampOnRouter(msg.sender); _; } /// @notice Checks whether remote chain selector is configured on this contract, and if the msg.sender /// is a permissioned offRamp for the given chain on the Router. modifier onlyOffRamp(uint64 remoteChainSelector) { if (!isSupportedChain(remoteChainSelector)) revert ChainNotAllowed(remoteChainSelector); if (!s_router.isOffRamp(remoteChainSelector, msg.sender)) revert CallerIsNotARampOnRouter(msg.sender); _; } // ================================================================ // │ Allowlist │ // ================================================================ modifier checkAllowList(address sender) { if (i_allowlistEnabled && !s_allowList.contains(sender)) revert SenderNotAllowed(sender); _; } /// @notice Gets whether the allowList functionality is enabled. /// @return true is enabled, false if not. function getAllowListEnabled() external view returns (bool) { return i_allowlistEnabled; } /// @notice Gets the allowed addresses. /// @return The allowed addresses. function getAllowList() external view returns (address[] memory) { return s_allowList.values(); } /// @notice Apply updates to the allow list. /// @param removes The addresses to be removed. /// @param adds The addresses to be added. /// @dev allowListing will be removed before public launch function applyAllowListUpdates(address[] calldata removes, address[] calldata adds) external onlyOwner { _applyAllowListUpdates(removes, adds); } /// @notice Internal version of applyAllowListUpdates to allow for reuse in the constructor. function _applyAllowListUpdates(address[] memory removes, address[] memory adds) internal { if (!i_allowlistEnabled) revert AllowListNotEnabled(); for (uint256 i = 0; i < removes.length; ++i) { address toRemove = removes[i]; if (s_allowList.remove(toRemove)) { emit AllowListRemove(toRemove); } } for (uint256 i = 0; i < adds.length; ++i) { address toAdd = adds[i]; if (toAdd == address(0)) { continue; } if (s_allowList.add(toAdd)) { emit AllowListAdd(toAdd); } } } /// @notice Ensure that there is no active curse. modifier whenHealthy() { if (IARM(i_armProxy).isCursed()) revert BadARMSignal(); _; } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.0; /// @notice Implements Token Bucket rate limiting. /// @dev uint128 is safe for rate limiter state. /// For USD value rate limiting, it can adequately store USD value in 18 decimals. /// For ERC20 token amount rate limiting, all tokens that will be listed will have at most /// a supply of uint128.max tokens, and it will therefore not overflow the bucket. /// In exceptional scenarios where tokens consumed may be larger than uint128, /// e.g. compromised issuer, an enabled RateLimiter will check and revert. library RateLimiter { error BucketOverfilled(); error OnlyCallableByAdminOrOwner(); error TokenMaxCapacityExceeded(uint256 capacity, uint256 requested, address tokenAddress); error TokenRateLimitReached(uint256 minWaitInSeconds, uint256 available, address tokenAddress); error AggregateValueMaxCapacityExceeded(uint256 capacity, uint256 requested); error AggregateValueRateLimitReached(uint256 minWaitInSeconds, uint256 available); error InvalidRatelimitRate(Config rateLimiterConfig); error DisabledNonZeroRateLimit(Config config); error RateLimitMustBeDisabled(); event TokensConsumed(uint256 tokens); event ConfigChanged(Config config); struct TokenBucket { uint128 tokens; // ──────╮ Current number of tokens that are in the bucket. uint32 lastUpdated; // │ Timestamp in seconds of the last token refill, good for 100+ years. bool isEnabled; // ──────╯ Indication whether the rate limiting is enabled or not uint128 capacity; // ────╮ Maximum number of tokens that can be in the bucket. uint128 rate; // ────────╯ Number of tokens per second that the bucket is refilled. } struct Config { bool isEnabled; // Indication whether the rate limiting should be enabled uint128 capacity; // ────╮ Specifies the capacity of the rate limiter uint128 rate; // ───────╯ Specifies the rate of the rate limiter } /// @notice _consume removes the given tokens from the pool, lowering the /// rate tokens allowed to be consumed for subsequent calls. /// @param requestTokens The total tokens to be consumed from the bucket. /// @param tokenAddress The token to consume capacity for, use 0x0 to indicate aggregate value capacity. /// @dev Reverts when requestTokens exceeds bucket capacity or available tokens in the bucket /// @dev emits removal of requestTokens if requestTokens is > 0 function _consume(TokenBucket storage s_bucket, uint256 requestTokens, address tokenAddress) internal { // If there is no value to remove or rate limiting is turned off, skip this step to reduce gas usage if (!s_bucket.isEnabled || requestTokens == 0) { return; } uint256 tokens = s_bucket.tokens; uint256 capacity = s_bucket.capacity; uint256 timeDiff = block.timestamp - s_bucket.lastUpdated; if (timeDiff != 0) { if (tokens > capacity) revert BucketOverfilled(); // Refill tokens when arriving at a new block time tokens = _calculateRefill(capacity, tokens, timeDiff, s_bucket.rate); s_bucket.lastUpdated = uint32(block.timestamp); } if (capacity < requestTokens) { // Token address 0 indicates consuming aggregate value rate limit capacity. if (tokenAddress == address(0)) revert AggregateValueMaxCapacityExceeded(capacity, requestTokens); revert TokenMaxCapacityExceeded(capacity, requestTokens, tokenAddress); } if (tokens < requestTokens) { uint256 rate = s_bucket.rate; // Wait required until the bucket is refilled enough to accept this value, round up to next higher second // Consume is not guaranteed to succeed after wait time passes if there is competing traffic. // This acts as a lower bound of wait time. uint256 minWaitInSeconds = ((requestTokens - tokens) + (rate - 1)) / rate; if (tokenAddress == address(0)) revert AggregateValueRateLimitReached(minWaitInSeconds, tokens); revert TokenRateLimitReached(minWaitInSeconds, tokens, tokenAddress); } tokens -= requestTokens; // Downcast is safe here, as tokens is not larger than capacity s_bucket.tokens = uint128(tokens); emit TokensConsumed(requestTokens); } /// @notice Gets the token bucket with its values for the block it was requested at. /// @return The token bucket. function _currentTokenBucketState(TokenBucket memory bucket) internal view returns (TokenBucket memory) { // We update the bucket to reflect the status at the exact time of the // call. This means we might need to refill a part of the bucket based // on the time that has passed since the last update. bucket.tokens = uint128( _calculateRefill(bucket.capacity, bucket.tokens, block.timestamp - bucket.lastUpdated, bucket.rate) ); bucket.lastUpdated = uint32(block.timestamp); return bucket; } /// @notice Sets the rate limited config. /// @param s_bucket The token bucket /// @param config The new config function _setTokenBucketConfig(TokenBucket storage s_bucket, Config memory config) internal { // First update the bucket to make sure the proper rate is used for all the time // up until the config change. uint256 timeDiff = block.timestamp - s_bucket.lastUpdated; if (timeDiff != 0) { s_bucket.tokens = uint128(_calculateRefill(s_bucket.capacity, s_bucket.tokens, timeDiff, s_bucket.rate)); s_bucket.lastUpdated = uint32(block.timestamp); } s_bucket.tokens = uint128(_min(config.capacity, s_bucket.tokens)); s_bucket.isEnabled = config.isEnabled; s_bucket.capacity = config.capacity; s_bucket.rate = config.rate; emit ConfigChanged(config); } /// @notice Validates the token bucket config function _validateTokenBucketConfig(Config memory config, bool mustBeDisabled) internal pure { if (config.isEnabled) { if (config.rate >= config.capacity || config.rate == 0) { revert InvalidRatelimitRate(config); } if (mustBeDisabled) { revert RateLimitMustBeDisabled(); } } else { if (config.rate != 0 || config.capacity != 0) { revert DisabledNonZeroRateLimit(config); } } } /// @notice Calculate refilled tokens /// @param capacity bucket capacity /// @param tokens current bucket tokens /// @param timeDiff block time difference since last refill /// @param rate bucket refill rate /// @return the value of tokens after refill function _calculateRefill( uint256 capacity, uint256 tokens, uint256 timeDiff, uint256 rate ) private pure returns (uint256) { return _min(capacity, tokens + timeDiff * rate); } /// @notice Return the smallest of two integers /// @param a first int /// @param b second int /// @return smallest function _min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `from` to `to` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address from, address to, uint256 amount) external returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.0; import "../IERC20.sol"; import "../extensions/draft-IERC20Permit.sol"; import "../../../utils/Address.sol"; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using Address for address; function safeTransfer(IERC20 token, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /** * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. */ function safeApprove(IERC20 token, address spender, uint256 value) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' require( (value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 newAllowance = token.allowance(address(this), spender) + value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal { unchecked { uint256 oldAllowance = token.allowance(address(this), spender); require(oldAllowance >= value, "SafeERC20: decreased allowance below zero"); uint256 newAllowance = oldAllowance - value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } } function safePermit( IERC20Permit token, address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) internal { uint256 nonceBefore = token.nonces(owner); token.permit(owner, spender, value, deadline, v, r, s); uint256 nonceAfter = token.nonces(owner); require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed"); } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import {IERC20} from "../../../vendor/openzeppelin-solidity/v4.8.3/contracts/token/ERC20/IERC20.sol"; // Shared public interface for multiple pool types. // Each pool type handles a different child token model (lock/unlock, mint/burn.) interface IPool { /// @notice Lock tokens into the pool or burn the tokens. /// @param originalSender Original sender of the tokens. /// @param receiver Receiver of the tokens on destination chain. /// @param amount Amount to lock or burn. /// @param remoteChainSelector Destination chain Id. /// @param extraArgs Additional data passed in by sender for lockOrBurn processing /// in custom pools on source chain. /// @return retData Optional field that contains bytes. Unused for now but already /// implemented to allow future upgrades while preserving the interface. function lockOrBurn( address originalSender, bytes calldata receiver, uint256 amount, uint64 remoteChainSelector, bytes calldata extraArgs ) external returns (bytes memory); /// @notice Releases or mints tokens to the receiver address. /// @param originalSender Original sender of the tokens. /// @param receiver Receiver of the tokens. /// @param amount Amount to release or mint. /// @param remoteChainSelector Source chain Id. /// @param extraData Additional data supplied offchain for releaseOrMint processing in /// custom pools on dest chain. This could be an attestation that was retrieved through a /// third party API. /// @dev offchainData can come from any untrusted source. function releaseOrMint( bytes memory originalSender, address receiver, uint256 amount, uint64 remoteChainSelector, bytes memory extraData ) external; /// @notice Gets the IERC20 token that this pool can lock or burn. /// @return token The IERC20 token representation. function getToken() external view returns (IERC20 token); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /// @notice This interface contains the only ARM-related functions that might be used on-chain by other CCIP contracts. interface IARM { /// @notice A Merkle root tagged with the address of the commit store contract it is destined for. struct TaggedRoot { address commitStore; bytes32 root; } /// @notice Callers MUST NOT cache the return value as a blessed tagged root could become unblessed. function isBlessed(TaggedRoot calldata taggedRoot) external view returns (bool); /// @notice When the ARM is "cursed", CCIP pauses until the curse is lifted. function isCursed() external view returns (bool); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import {Client} from "../libraries/Client.sol"; interface IRouter { error OnlyOffRamp(); /// @notice Route the message to its intended receiver contract. /// @param message Client.Any2EVMMessage struct. /// @param gasForCallExactCheck of params for exec /// @param gasLimit set of params for exec /// @param receiver set of params for exec /// @dev if the receiver is a contracts that signals support for CCIP execution through EIP-165. /// the contract is called. If not, only tokens are transferred. /// @return success A boolean value indicating whether the ccip message was received without errors. /// @return retBytes A bytes array containing return data form CCIP receiver. /// @return gasUsed the gas used by the external customer call. Does not include any overhead. function routeMessage( Client.Any2EVMMessage calldata message, uint16 gasForCallExactCheck, uint256 gasLimit, address receiver ) external returns (bool success, bytes memory retBytes, uint256 gasUsed); /// @notice Returns the configured onramp for a specific destination chain. /// @param destChainSelector The destination chain Id to get the onRamp for. /// @return onRampAddress The address of the onRamp. function getOnRamp(uint64 destChainSelector) external view returns (address onRampAddress); /// @notice Return true if the given offRamp is a configured offRamp for the given source chain. /// @param sourceChainSelector The source chain selector to check. /// @param offRamp The address of the offRamp to check. function isOffRamp(uint64 sourceChainSelector, address offRamp) external view returns (bool isOffRamp); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import {ConfirmedOwner} from "./ConfirmedOwner.sol"; /// @title The OwnerIsCreator contract /// @notice A contract with helpers for basic contract ownership. contract OwnerIsCreator is ConfirmedOwner { constructor() ConfirmedOwner(msg.sender) {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/structs/EnumerableSet.sol) // This file was procedurally generated from scripts/generate/templates/EnumerableSet.js. pragma solidity ^0.8.0; /** * @dev Library for managing * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive * types. * * Sets have the following properties: * * - Elements are added, removed, and checked for existence in constant time * (O(1)). * - Elements are enumerated in O(n). No guarantees are made on the ordering. * * ``` * contract Example { * // Add the library methods * using EnumerableSet for EnumerableSet.AddressSet; * * // Declare a set state variable * EnumerableSet.AddressSet private mySet; * } * ``` * * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`) * and `uint256` (`UintSet`) are supported. * * [WARNING] * ==== * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure * unusable. * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info. * * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an * array of EnumerableSet. * ==== */ library EnumerableSet { // To implement this library for multiple types with as little code // repetition as possible, we write it in terms of a generic Set type with // bytes32 values. // The Set implementation uses private functions, and user-facing // implementations (such as AddressSet) are just wrappers around the // underlying Set. // This means that we can only create new EnumerableSets for types that fit // in bytes32. struct Set { // Storage of set values bytes32[] _values; // Position of the value in the `values` array, plus 1 because index 0 // means a value is not in the set. mapping(bytes32 => uint256) _indexes; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function _add(Set storage set, bytes32 value) private returns (bool) { if (!_contains(set, value)) { set._values.push(value); // The value is stored at length-1, but we add 1 to all indexes // and use 0 as a sentinel value set._indexes[value] = set._values.length; return true; } else { return false; } } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function _remove(Set storage set, bytes32 value) private returns (bool) { // We read and store the value's index to prevent multiple reads from the same storage slot uint256 valueIndex = set._indexes[value]; if (valueIndex != 0) { // Equivalent to contains(set, value) // To delete an element from the _values array in O(1), we swap the element to delete with the last one in // the array, and then remove the last element (sometimes called as 'swap and pop'). // This modifies the order of the array, as noted in {at}. uint256 toDeleteIndex = valueIndex - 1; uint256 lastIndex = set._values.length - 1; if (lastIndex != toDeleteIndex) { bytes32 lastValue = set._values[lastIndex]; // Move the last value to the index where the value to delete is set._values[toDeleteIndex] = lastValue; // Update the index for the moved value set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex } // Delete the slot where the moved value was stored set._values.pop(); // Delete the index for the deleted slot delete set._indexes[value]; return true; } else { return false; } } /** * @dev Returns true if the value is in the set. O(1). */ function _contains(Set storage set, bytes32 value) private view returns (bool) { return set._indexes[value] != 0; } /** * @dev Returns the number of values on the set. O(1). */ function _length(Set storage set) private view returns (uint256) { return set._values.length; } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function _at(Set storage set, uint256 index) private view returns (bytes32) { return set._values[index]; } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function _values(Set storage set) private view returns (bytes32[] memory) { return set._values; } // Bytes32Set struct Bytes32Set { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _add(set._inner, value); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _remove(set._inner, value); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) { return _contains(set._inner, value); } /** * @dev Returns the number of values in the set. O(1). */ function length(Bytes32Set storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) { return _at(set._inner, index); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(Bytes32Set storage set) internal view returns (bytes32[] memory) { bytes32[] memory store = _values(set._inner); bytes32[] memory result; /// @solidity memory-safe-assembly assembly { result := store } return result; } // AddressSet struct AddressSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(AddressSet storage set, address value) internal returns (bool) { return _add(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(AddressSet storage set, address value) internal returns (bool) { return _remove(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(AddressSet storage set, address value) internal view returns (bool) { return _contains(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns the number of values in the set. O(1). */ function length(AddressSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(AddressSet storage set, uint256 index) internal view returns (address) { return address(uint160(uint256(_at(set._inner, index)))); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(AddressSet storage set) internal view returns (address[] memory) { bytes32[] memory store = _values(set._inner); address[] memory result; /// @solidity memory-safe-assembly assembly { result := store } return result; } // UintSet struct UintSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(UintSet storage set, uint256 value) internal returns (bool) { return _add(set._inner, bytes32(value)); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(UintSet storage set, uint256 value) internal returns (bool) { return _remove(set._inner, bytes32(value)); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(UintSet storage set, uint256 value) internal view returns (bool) { return _contains(set._inner, bytes32(value)); } /** * @dev Returns the number of values in the set. O(1). */ function length(UintSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(UintSet storage set, uint256 index) internal view returns (uint256) { return uint256(_at(set._inner, index)); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(UintSet storage set) internal view returns (uint256[] memory) { bytes32[] memory store = _values(set._inner); uint256[] memory result; /// @solidity memory-safe-assembly assembly { result := store } return result; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612]. * * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't * need to send a transaction, and thus is not required to hold Ether at all. */ interface IERC20Permit { /** * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens, * given ``owner``'s signed approval. * * IMPORTANT: The same issues {IERC20-approve} has related to transaction * ordering also apply here. * * Emits an {Approval} event. * * Requirements: * * - `spender` cannot be the zero address. * - `deadline` must be a timestamp in the future. * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner` * over the EIP712-formatted function arguments. * - the signature must use ``owner``'s current nonce (see {nonces}). * * For more information on the signature format, see the * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP * section]. */ function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) external; /** * @dev Returns the current nonce for `owner`. This value must be * included whenever a signature is generated for {permit}. * * Every successful call to {permit} increases ``owner``'s nonce by one. This * prevents a signature from being used multiple times. */ function nonces(address owner) external view returns (uint256); /** * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}. */ // solhint-disable-next-line func-name-mixedcase function DOMAIN_SEPARATOR() external view returns (bytes32); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. * * _Available since v4.8._ */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata, string memory errorMessage ) internal view returns (bytes memory) { if (success) { if (returndata.length == 0) { // only check isContract if the call was successful and the return data is empty // otherwise we already know that it was a contract require(isContract(target), "Address: call to non-contract"); } return returndata; } else { _revert(returndata, errorMessage); } } /** * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason or using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { _revert(returndata, errorMessage); } } function _revert(bytes memory returndata, string memory errorMessage) private pure { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; // End consumer library. library Client { /// @dev RMN depends on this struct, if changing, please notify the RMN maintainers. struct EVMTokenAmount { address token; // token address on the local chain. uint256 amount; // Amount of tokens. } struct Any2EVMMessage { bytes32 messageId; // MessageId corresponding to ccipSend on source. uint64 sourceChainSelector; // Source chain selector. bytes sender; // abi.decode(sender) if coming from an EVM chain. bytes data; // payload sent in original message. EVMTokenAmount[] destTokenAmounts; // Tokens and their amounts in their destination chain representation. } // If extraArgs is empty bytes, the default is 200k gas limit. struct EVM2AnyMessage { bytes receiver; // abi.encode(receiver address) for dest EVM chains bytes data; // Data payload EVMTokenAmount[] tokenAmounts; // Token transfers address feeToken; // Address of feeToken. address(0) means you will send msg.value. bytes extraArgs; // Populate this with _argsToBytes(EVMExtraArgsV1) } // bytes4(keccak256("CCIP EVMExtraArgsV1")); bytes4 public constant EVM_EXTRA_ARGS_V1_TAG = 0x97a657c9; struct EVMExtraArgsV1 { uint256 gasLimit; } function _argsToBytes(EVMExtraArgsV1 memory extraArgs) internal pure returns (bytes memory bts) { return abi.encodeWithSelector(EVM_EXTRA_ARGS_V1_TAG, extraArgs); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import {ConfirmedOwnerWithProposal} from "./ConfirmedOwnerWithProposal.sol"; /// @title The ConfirmedOwner contract /// @notice A contract with helpers for basic contract ownership. contract ConfirmedOwner is ConfirmedOwnerWithProposal { constructor(address newOwner) ConfirmedOwnerWithProposal(newOwner, address(0)) {} }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import {IOwnable} from "../interfaces/IOwnable.sol"; /// @title The ConfirmedOwner contract /// @notice A contract with helpers for basic contract ownership. contract ConfirmedOwnerWithProposal is IOwnable { address private s_owner; address private s_pendingOwner; event OwnershipTransferRequested(address indexed from, address indexed to); event OwnershipTransferred(address indexed from, address indexed to); constructor(address newOwner, address pendingOwner) { // solhint-disable-next-line custom-errors require(newOwner != address(0), "Cannot set owner to zero"); s_owner = newOwner; if (pendingOwner != address(0)) { _transferOwnership(pendingOwner); } } /// @notice Allows an owner to begin transferring ownership to a new address. function transferOwnership(address to) public override onlyOwner { _transferOwnership(to); } /// @notice Allows an ownership transfer to be completed by the recipient. function acceptOwnership() external override { // solhint-disable-next-line custom-errors require(msg.sender == s_pendingOwner, "Must be proposed owner"); address oldOwner = s_owner; s_owner = msg.sender; s_pendingOwner = address(0); emit OwnershipTransferred(oldOwner, msg.sender); } /// @notice Get the current owner function owner() public view override returns (address) { return s_owner; } /// @notice validate, transfer ownership, and emit relevant events function _transferOwnership(address to) private { // solhint-disable-next-line custom-errors require(to != msg.sender, "Cannot transfer to self"); s_pendingOwner = to; emit OwnershipTransferRequested(s_owner, to); } /// @notice validate access function _validateOwnership() internal view { // solhint-disable-next-line custom-errors require(msg.sender == s_owner, "Only callable by owner"); } /// @notice Reverts if called by anyone other than the contract owner. modifier onlyOwner() { _validateOwnership(); _; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; interface IOwnable { function owner() external returns (address); function transferOwnership(address recipient) external; function acceptOwnership() external; }
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Contract Security Audit
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RateLimiter.Config","name":"inboundConfig","type":"tuple"}],"name":"setChainRateLimiterConfig","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"rateLimitAdmin","type":"address"}],"name":"setRateLimitAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"rebalancer","type":"address"}],"name":"setRebalancer","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newRouter","type":"address"}],"name":"setRouter","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"typeAndVersion","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdrawLiquidity","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Deployed Bytecode
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Multichain Portfolio | 30 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
---|---|---|---|---|---|
ETH | 100.00% | $4,627.52 | 227.1499 | $1,051,140.72 |
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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.