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Similar Match Source Code This contract matches the deployed Bytecode of the Source Code for Contract 0x418dcbCf...23879FBB4 The constructor portion of the code might be different and could alter the actual behaviour of the contract
Contract Name:
EVM2EVMOffRamp
Compiler Version
v0.8.24+commit.e11b9ed9
Optimization Enabled:
Yes with 18000 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: BUSL-1.1 pragma solidity 0.8.24; import {ITypeAndVersion} from "../../shared/interfaces/ITypeAndVersion.sol"; import {IAny2EVMMessageReceiver} from "../interfaces/IAny2EVMMessageReceiver.sol"; import {IAny2EVMOffRamp} from "../interfaces/IAny2EVMOffRamp.sol"; import {ICommitStore} from "../interfaces/ICommitStore.sol"; import {IPoolV1} from "../interfaces/IPool.sol"; import {IPriceRegistry} from "../interfaces/IPriceRegistry.sol"; import {IRMN} from "../interfaces/IRMN.sol"; import {IRouter} from "../interfaces/IRouter.sol"; import {ITokenAdminRegistry} from "../interfaces/ITokenAdminRegistry.sol"; import {CallWithExactGas} from "../../shared/call/CallWithExactGas.sol"; import {EnumerableMapAddresses} from "../../shared/enumerable/EnumerableMapAddresses.sol"; import {AggregateRateLimiter} from "../AggregateRateLimiter.sol"; import {Client} from "../libraries/Client.sol"; import {Internal} from "../libraries/Internal.sol"; import {Pool} from "../libraries/Pool.sol"; import {RateLimiter} from "../libraries/RateLimiter.sol"; import {OCR2BaseNoChecks} from "../ocr/OCR2BaseNoChecks.sol"; import {IERC20} from "../../vendor/openzeppelin-solidity/v4.8.3/contracts/token/ERC20/IERC20.sol"; import {ERC165Checker} from "../../vendor/openzeppelin-solidity/v5.0.2/contracts/utils/introspection/ERC165Checker.sol"; /// @notice EVM2EVMOffRamp enables OCR networks to execute multiple messages /// in an OffRamp in a single transaction. /// @dev The EVM2EVMOnRamp, CommitStore and EVM2EVMOffRamp form an xchain upgradeable unit. Any change to one of them /// results an onchain upgrade of all 3. /// @dev OCR2BaseNoChecks is used to save gas, signatures are not required as the offramp can only execute /// messages which are committed in the commitStore. We still make use of OCR2 as an executor whitelist /// and turn-taking mechanism. contract EVM2EVMOffRamp is IAny2EVMOffRamp, AggregateRateLimiter, ITypeAndVersion, OCR2BaseNoChecks { using ERC165Checker for address; using EnumerableMapAddresses for EnumerableMapAddresses.AddressToAddressMap; error ZeroAddressNotAllowed(); error CommitStoreAlreadyInUse(); error ExecutionError(bytes err); error InvalidSourceChain(uint64 sourceChainSelector); error MessageTooLarge(uint256 maxSize, uint256 actualSize); error TokenDataMismatch(uint64 sequenceNumber); error UnexpectedTokenData(); error UnsupportedNumberOfTokens(uint64 sequenceNumber); error ManualExecutionNotYetEnabled(); error ManualExecutionGasLimitMismatch(); error DestinationGasAmountCountMismatch(bytes32 messageId, uint64 sequenceNumber); error InvalidManualExecutionGasLimit(bytes32 messageId, uint256 oldLimit, uint256 newLimit); error InvalidTokenGasOverride(bytes32 messageId, uint256 tokenIndex, uint256 oldLimit, uint256 tokenGasOverride); error RootNotCommitted(); error CanOnlySelfCall(); error ReceiverError(bytes err); error TokenHandlingError(bytes err); error ReleaseOrMintBalanceMismatch(uint256 amountReleased, uint256 balancePre, uint256 balancePost); error EmptyReport(); error CursedByRMN(); error InvalidMessageId(); error NotACompatiblePool(address notPool); error InvalidDataLength(uint256 expected, uint256 got); error InvalidNewState(uint64 sequenceNumber, Internal.MessageExecutionState newState); /// @dev Atlas depends on this event, if changing, please notify Atlas. event ConfigSet(StaticConfig staticConfig, DynamicConfig dynamicConfig); event SkippedIncorrectNonce(uint64 indexed nonce, address indexed sender); event SkippedSenderWithPreviousRampMessageInflight(uint64 indexed nonce, address indexed sender); /// @dev RMN depends on this event, if changing, please notify the RMN maintainers. event ExecutionStateChanged( uint64 indexed sequenceNumber, bytes32 indexed messageId, Internal.MessageExecutionState state, bytes returnData ); event TokenAggregateRateLimitAdded(address sourceToken, address destToken); event TokenAggregateRateLimitRemoved(address sourceToken, address destToken); event SkippedAlreadyExecutedMessage(uint64 indexed sequenceNumber); event AlreadyAttempted(uint64 sequenceNumber); /// @notice Static offRamp config /// @dev RMN depends on this struct, if changing, please notify the RMN maintainers. //solhint-disable gas-struct-packing struct StaticConfig { address commitStore; // ────────╮ CommitStore address on the destination chain uint64 chainSelector; // ───────╯ Destination chainSelector uint64 sourceChainSelector; // ─╮ Source chainSelector address onRamp; // ─────────────╯ OnRamp address on the source chain address prevOffRamp; // Address of previous-version OffRamp address rmnProxy; // RMN proxy address address tokenAdminRegistry; // Token admin registry address } /// @notice Dynamic offRamp config /// @dev since OffRampConfig is part of OffRampConfigChanged event, if changing it, we should update the ABI on Atlas struct DynamicConfig { uint32 permissionLessExecutionThresholdSeconds; // ─╮ Waiting time before manual execution is enabled uint32 maxDataBytes; // │ Maximum payload data size in bytes uint16 maxNumberOfTokensPerMsg; // │ Maximum number of ERC20 token transfers that can be included per message address router; // ─────────────────────────────────╯ Router address address priceRegistry; // Price registry address } /// @notice RateLimitToken struct containing both the source and destination token addresses struct RateLimitToken { address sourceToken; address destToken; } /// @notice Gas overrides for manual exec, the number of token overrides must match the number of tokens in the msg. struct GasLimitOverride { /// @notice Overrides EVM2EVMMessage.gasLimit. A value of zero indicates no override and is valid. uint256 receiverExecutionGasLimit; /// @notice Overrides EVM2EVMMessage.sourceTokenData.destGasAmount. Must be same length as tokenAmounts. A value /// of zero indicates no override and is valid. uint32[] tokenGasOverrides; } // STATIC CONFIG string public constant override typeAndVersion = "EVM2EVMOffRamp 1.5.0"; /// @dev Commit store address on the destination chain address internal immutable i_commitStore; /// @dev ChainSelector of the source chain uint64 internal immutable i_sourceChainSelector; /// @dev ChainSelector of this chain uint64 internal immutable i_chainSelector; /// @dev OnRamp address on the source chain address internal immutable i_onRamp; /// @dev metadataHash is a lane-specific prefix for a message hash preimage which ensures global uniqueness. /// Ensures that 2 identical messages sent to 2 different lanes will have a distinct hash. /// Must match the metadataHash used in computing leaf hashes offchain for the root committed in /// the commitStore and i_metadataHash in the onRamp. bytes32 internal immutable i_metadataHash; /// @dev The address of previous-version OffRamp for this lane. /// Used to be able to provide sequencing continuity during a zero downtime upgrade. address internal immutable i_prevOffRamp; /// @dev The address of the RMN proxy address internal immutable i_rmnProxy; /// @dev The address of the token admin registry address internal immutable i_tokenAdminRegistry; // DYNAMIC CONFIG DynamicConfig internal s_dynamicConfig; /// @dev Tokens that should be included in Aggregate Rate Limiting /// An (address => address) map is used for backwards compatability of offchain code EnumerableMapAddresses.AddressToAddressMap internal s_rateLimitedTokensDestToSource; // STATE /// @dev The expected nonce for a given sender. /// Corresponds to s_senderNonce in the OnRamp, used to enforce that messages are /// executed in the same order they are sent (assuming they are DON). Note that re-execution /// of FAILED messages however, can be out of order. mapping(address sender => uint64 nonce) internal s_senderNonce; /// @dev A mapping of sequence numbers to execution state using a bitmap with each execution /// state only taking up 2 bits of the uint256, packing 128 states into a single slot. /// Message state is tracked to ensure message can only be executed successfully once. mapping(uint64 seqNum => uint256 executionStateBitmap) internal s_executionStates; constructor( StaticConfig memory staticConfig, RateLimiter.Config memory rateLimiterConfig ) OCR2BaseNoChecks() AggregateRateLimiter(rateLimiterConfig) { if ( staticConfig.onRamp == address(0) || staticConfig.commitStore == address(0) || staticConfig.tokenAdminRegistry == address(0) ) revert ZeroAddressNotAllowed(); // Ensures we can never deploy a new offRamp that points to a commitStore that // already has roots committed. if (ICommitStore(staticConfig.commitStore).getExpectedNextSequenceNumber() != 1) revert CommitStoreAlreadyInUse(); i_commitStore = staticConfig.commitStore; i_sourceChainSelector = staticConfig.sourceChainSelector; i_chainSelector = staticConfig.chainSelector; i_onRamp = staticConfig.onRamp; i_prevOffRamp = staticConfig.prevOffRamp; i_rmnProxy = staticConfig.rmnProxy; i_tokenAdminRegistry = staticConfig.tokenAdminRegistry; i_metadataHash = _metadataHash(Internal.EVM_2_EVM_MESSAGE_HASH); } // ================================================================ // │ Messaging │ // ================================================================ // The size of the execution state in bits uint256 private constant MESSAGE_EXECUTION_STATE_BIT_WIDTH = 2; // The mask for the execution state bits uint256 private constant MESSAGE_EXECUTION_STATE_MASK = (1 << MESSAGE_EXECUTION_STATE_BIT_WIDTH) - 1; /// @notice Returns the current execution state of a message based on its sequenceNumber. /// @param sequenceNumber The sequence number of the message to get the execution state for. /// @return The current execution state of the message. /// @dev we use the literal number 128 because using a constant increased gas usage. function getExecutionState(uint64 sequenceNumber) public view returns (Internal.MessageExecutionState) { return Internal.MessageExecutionState( (s_executionStates[sequenceNumber / 128] >> ((sequenceNumber % 128) * MESSAGE_EXECUTION_STATE_BIT_WIDTH)) & MESSAGE_EXECUTION_STATE_MASK ); } /// @notice Sets a new execution state for a given sequence number. It will overwrite any existing state. /// @param sequenceNumber The sequence number for which the state will be saved. /// @param newState The new value the state will be in after this function is called. /// @dev we use the literal number 128 because using a constant increased gas usage. function _setExecutionState(uint64 sequenceNumber, Internal.MessageExecutionState newState) internal { uint256 offset = (sequenceNumber % 128) * MESSAGE_EXECUTION_STATE_BIT_WIDTH; uint256 bitmap = s_executionStates[sequenceNumber / 128]; // to unset any potential existing state we zero the bits of the section the state occupies, // then we do an AND operation to blank out any existing state for the section. bitmap &= ~(MESSAGE_EXECUTION_STATE_MASK << offset); // Set the new state bitmap |= uint256(newState) << offset; s_executionStates[sequenceNumber / 128] = bitmap; } /// @inheritdoc IAny2EVMOffRamp function getSenderNonce(address sender) external view returns (uint64 nonce) { uint256 senderNonce = s_senderNonce[sender]; if (senderNonce == 0) { if (i_prevOffRamp != address(0)) { // If OffRamp was upgraded, check if sender has a nonce from the previous OffRamp. return IAny2EVMOffRamp(i_prevOffRamp).getSenderNonce(sender); } } return uint64(senderNonce); } /// @notice Manually execute a message. /// @param report Internal.ExecutionReport. /// @param gasLimitOverrides New gasLimit for each message in the report. /// @dev We permit gas limit overrides so that users may manually execute messages which failed due to /// insufficient gas provided. function manuallyExecute( Internal.ExecutionReport memory report, GasLimitOverride[] memory gasLimitOverrides ) external { // We do this here because the other _execute path is already covered OCR2BaseXXX. _checkChainForked(); uint256 numMsgs = report.messages.length; if (numMsgs != gasLimitOverrides.length) revert ManualExecutionGasLimitMismatch(); for (uint256 i = 0; i < numMsgs; ++i) { Internal.EVM2EVMMessage memory message = report.messages[i]; GasLimitOverride memory gasLimitOverride = gasLimitOverrides[i]; uint256 newLimit = gasLimitOverride.receiverExecutionGasLimit; // Checks to ensure message cannot be executed with less gas than specified. if (newLimit != 0) { if (newLimit < message.gasLimit) { revert InvalidManualExecutionGasLimit(message.messageId, message.gasLimit, newLimit); } } if (message.tokenAmounts.length != gasLimitOverride.tokenGasOverrides.length) { revert DestinationGasAmountCountMismatch(message.messageId, message.sequenceNumber); } bytes[] memory encodedSourceTokenData = message.sourceTokenData; for (uint256 j = 0; j < message.tokenAmounts.length; ++j) { Internal.SourceTokenData memory sourceTokenData = abi.decode(encodedSourceTokenData[i], (Internal.SourceTokenData)); uint256 tokenGasOverride = gasLimitOverride.tokenGasOverrides[j]; // The gas limit can not be lowered as that could cause the message to fail. If manual execution is done // from an UNTOUCHED state and we would allow lower gas limit, anyone could grief by executing the message with // lower gas limit than the DON would have used. This results in the message being marked FAILURE and the DON // would not attempt it with the correct gas limit. if (tokenGasOverride != 0 && tokenGasOverride < sourceTokenData.destGasAmount) { revert InvalidTokenGasOverride(message.messageId, j, sourceTokenData.destGasAmount, tokenGasOverride); } } } _execute(report, gasLimitOverrides); } /// @notice Entrypoint for execution, called by the OCR network /// @dev Expects an encoded ExecutionReport /// @dev Supplies no GasLimitOverrides as the DON will only execute with the original gas limits. function _report(bytes calldata report) internal override { _execute(abi.decode(report, (Internal.ExecutionReport)), new GasLimitOverride[](0)); } /// @notice Executes a report, executing each message in order. /// @param report The execution report containing the messages and proofs. /// @param manualExecGasOverrides An array of gas limits to use for manual execution. /// @dev If called from the DON, this array is always empty. /// @dev If called from manual execution, this array is always same length as messages. function _execute(Internal.ExecutionReport memory report, GasLimitOverride[] memory manualExecGasOverrides) internal { if (IRMN(i_rmnProxy).isCursed(bytes16(uint128(i_sourceChainSelector)))) revert CursedByRMN(); uint256 numMsgs = report.messages.length; if (numMsgs == 0) revert EmptyReport(); if (numMsgs != report.offchainTokenData.length) revert UnexpectedTokenData(); bytes32[] memory hashedLeaves = new bytes32[](numMsgs); for (uint256 i = 0; i < numMsgs; ++i) { Internal.EVM2EVMMessage memory message = report.messages[i]; // We do this hash here instead of in _verifyMessages to avoid two separate loops // over the same data, which increases gas cost hashedLeaves[i] = Internal._hash(message, i_metadataHash); // For EVM2EVM offramps, the messageID is the leaf hash. // Asserting that this is true ensures we don't accidentally commit and then execute // a message with an unexpected hash. if (hashedLeaves[i] != message.messageId) revert InvalidMessageId(); } bool manualExecution = manualExecGasOverrides.length != 0; // SECURITY CRITICAL CHECK uint256 timestampCommitted = ICommitStore(i_commitStore).verify(hashedLeaves, report.proofs, report.proofFlagBits); if (timestampCommitted == 0) revert RootNotCommitted(); // Execute messages for (uint256 i = 0; i < numMsgs; ++i) { Internal.EVM2EVMMessage memory message = report.messages[i]; Internal.MessageExecutionState originalState = getExecutionState(message.sequenceNumber); // Two valid cases here, we either have never touched this message before, or we tried to execute // and failed. This check protects against reentry and re-execution because the other state is // IN_PROGRESS which should not be allowed to execute. if ( !( originalState == Internal.MessageExecutionState.UNTOUCHED || originalState == Internal.MessageExecutionState.FAILURE ) ) { // If the message has already been executed, we skip it. We want to not revert on race conditions between // executing parties. This will allow us to open up manual exec while also attempting with the DON, without // reverting an entire DON batch when a user manually executes while the tx is inflight. emit SkippedAlreadyExecutedMessage(message.sequenceNumber); continue; } uint32[] memory tokenGasOverrides; if (manualExecution) { tokenGasOverrides = manualExecGasOverrides[i].tokenGasOverrides; bool isOldCommitReport = (block.timestamp - timestampCommitted) > s_dynamicConfig.permissionLessExecutionThresholdSeconds; // Manually execution is fine if we previously failed or if the commit report is just too old // Acceptable state transitions: FAILURE->SUCCESS, UNTOUCHED->SUCCESS, FAILURE->FAILURE if (!(isOldCommitReport || originalState == Internal.MessageExecutionState.FAILURE)) { revert ManualExecutionNotYetEnabled(); } // Manual execution gas limit can override gas limit specified in the message. Value of 0 indicates no override. if (manualExecGasOverrides[i].receiverExecutionGasLimit != 0) { message.gasLimit = manualExecGasOverrides[i].receiverExecutionGasLimit; } } else { // DON can only execute a message once // Acceptable state transitions: UNTOUCHED->SUCCESS, UNTOUCHED->FAILURE if (originalState != Internal.MessageExecutionState.UNTOUCHED) { emit AlreadyAttempted(message.sequenceNumber); continue; } } if (message.nonce != 0) { // In the scenario where we upgrade offRamps, we still want to have sequential nonces. // Referencing the old offRamp to check the expected nonce if none is set for a // given sender allows us to skip the current message if it would not be the next according // to the old offRamp. This preserves sequencing between updates. uint64 prevNonce = s_senderNonce[message.sender]; if (prevNonce == 0) { if (i_prevOffRamp != address(0)) { prevNonce = IAny2EVMOffRamp(i_prevOffRamp).getSenderNonce(message.sender); if (prevNonce + 1 != message.nonce) { // the starting v2 onramp nonce, i.e. the 1st message nonce v2 offramp is expected to receive, // is guaranteed to equal (largest v1 onramp nonce + 1). // if this message's nonce isn't (v1 offramp nonce + 1), then v1 offramp nonce != largest v1 onramp nonce, // it tells us there are still messages inflight for v1 offramp emit SkippedSenderWithPreviousRampMessageInflight(message.nonce, message.sender); continue; } // Otherwise this nonce is indeed the "transitional nonce", that is // all messages sent to v1 ramp have been executed by the DON and the sequence can resume in V2. // Note if first time user in V2, then prevNonce will be 0, and message.nonce = 1, so this will be a no-op. s_senderNonce[message.sender] = prevNonce; } } // UNTOUCHED messages MUST be executed in order always IF message.nonce > 0. if (originalState == Internal.MessageExecutionState.UNTOUCHED) { if (prevNonce + 1 != message.nonce) { // We skip the message if the nonce is incorrect, since message.nonce > 0. emit SkippedIncorrectNonce(message.nonce, message.sender); continue; } } } // Although we expect only valid messages will be committed, we check again // when executing as a defense in depth measure. bytes[] memory offchainTokenData = report.offchainTokenData[i]; _isWellFormed( message.sequenceNumber, message.sourceChainSelector, message.tokenAmounts.length, message.data.length, offchainTokenData.length ); _setExecutionState(message.sequenceNumber, Internal.MessageExecutionState.IN_PROGRESS); (Internal.MessageExecutionState newState, bytes memory returnData) = _trialExecute(message, offchainTokenData, tokenGasOverrides); _setExecutionState(message.sequenceNumber, newState); // Since it's hard to estimate whether manual execution will succeed, we // revert the entire transaction if it fails. This will show the user if // their manual exec will fail before they submit it. if (manualExecution) { if (newState == Internal.MessageExecutionState.FAILURE) { if (originalState != Internal.MessageExecutionState.UNTOUCHED) { // If manual execution fails, we revert the entire transaction, unless the originalState is UNTOUCHED as we // would still be making progress by changing the state from UNTOUCHED to FAILURE. revert ExecutionError(returnData); } } } // The only valid prior states are UNTOUCHED and FAILURE (checked above) // The only valid post states are SUCCESS and FAILURE (checked below) if (newState != Internal.MessageExecutionState.SUCCESS) { if (newState != Internal.MessageExecutionState.FAILURE) { revert InvalidNewState(message.sequenceNumber, newState); } } // Nonce changes per state transition. // These only apply for ordered messages. // UNTOUCHED -> FAILURE nonce bump // UNTOUCHED -> SUCCESS nonce bump // FAILURE -> FAILURE no nonce bump // FAILURE -> SUCCESS no nonce bump if (message.nonce != 0) { if (originalState == Internal.MessageExecutionState.UNTOUCHED) { s_senderNonce[message.sender]++; } } emit ExecutionStateChanged(message.sequenceNumber, message.messageId, newState, returnData); } } /// @notice Does basic message validation. Should never fail. /// @param sequenceNumber Sequence number of the message. /// @param sourceChainSelector SourceChainSelector of the message. /// @param numberOfTokens Length of tokenAmounts array in the message. /// @param dataLength Length of data field in the message. /// @param offchainTokenDataLength Length of offchainTokenData array. /// @dev reverts on validation failures. function _isWellFormed( uint64 sequenceNumber, uint64 sourceChainSelector, uint256 numberOfTokens, uint256 dataLength, uint256 offchainTokenDataLength ) private view { if (sourceChainSelector != i_sourceChainSelector) revert InvalidSourceChain(sourceChainSelector); if (numberOfTokens > uint256(s_dynamicConfig.maxNumberOfTokensPerMsg)) { revert UnsupportedNumberOfTokens(sequenceNumber); } if (numberOfTokens != offchainTokenDataLength) revert TokenDataMismatch(sequenceNumber); if (dataLength > uint256(s_dynamicConfig.maxDataBytes)) { revert MessageTooLarge(uint256(s_dynamicConfig.maxDataBytes), dataLength); } } /// @notice Try executing a message. /// @param message Internal.EVM2EVMMessage memory message. /// @param offchainTokenData Data provided by the DON for token transfers. /// @return the new state of the message, being either SUCCESS or FAILURE. /// @return revert data in bytes if CCIP receiver reverted during execution. function _trialExecute( Internal.EVM2EVMMessage memory message, bytes[] memory offchainTokenData, uint32[] memory tokenGasOverrides ) internal returns (Internal.MessageExecutionState, bytes memory) { try this.executeSingleMessage(message, offchainTokenData, tokenGasOverrides) {} catch (bytes memory err) { // return the message execution state as FAILURE and the revert data // Max length of revert data is Router.MAX_RET_BYTES, max length of err is 4 + Router.MAX_RET_BYTES return (Internal.MessageExecutionState.FAILURE, err); } // If message execution succeeded, no CCIP receiver return data is expected, return with empty bytes. return (Internal.MessageExecutionState.SUCCESS, ""); } /// @notice Execute a single message. /// @param message The message that will be executed. /// @param offchainTokenData Token transfer data to be passed to TokenPool. /// @dev We make this external and callable by the contract itself, in order to try/catch /// its execution and enforce atomicity among successful message processing and token transfer. /// @dev We use ERC-165 to check for the ccipReceive interface to permit sending tokens to contracts /// (for example smart contract wallets) without an associated message. function executeSingleMessage( Internal.EVM2EVMMessage calldata message, bytes[] calldata offchainTokenData, uint32[] memory tokenGasOverrides ) external { if (msg.sender != address(this)) revert CanOnlySelfCall(); Client.EVMTokenAmount[] memory destTokenAmounts = new Client.EVMTokenAmount[](0); if (message.tokenAmounts.length > 0) { destTokenAmounts = _releaseOrMintTokens( message.tokenAmounts, abi.encode(message.sender), message.receiver, message.sourceTokenData, offchainTokenData, tokenGasOverrides ); } // There are three cases in which we skip calling the receiver: // 1. If the message data is empty AND the gas limit is 0. // This indicates a message that only transfers tokens. It is valid to only send tokens to a contract // that supports the IAny2EVMMessageReceiver interface, but without this first check we would call the // receiver without any gas, which would revert the transaction. // 2. If the receiver is not a contract. // 3. If the receiver is a contract but it does not support the IAny2EVMMessageReceiver interface. // // The ordering of these checks is important, as the first check is the cheapest to execute. if ( (message.data.length == 0 && message.gasLimit == 0) || message.receiver.code.length == 0 || !message.receiver.supportsInterface(type(IAny2EVMMessageReceiver).interfaceId) ) return; (bool success, bytes memory returnData,) = IRouter(s_dynamicConfig.router).routeMessage( Client.Any2EVMMessage({ messageId: message.messageId, sourceChainSelector: message.sourceChainSelector, sender: abi.encode(message.sender), data: message.data, destTokenAmounts: destTokenAmounts }), Internal.GAS_FOR_CALL_EXACT_CHECK, message.gasLimit, message.receiver ); // If CCIP receiver execution is not successful, revert the call including token transfers if (!success) revert ReceiverError(returnData); } /// @notice creates a unique hash to be used in message hashing. function _metadataHash(bytes32 prefix) internal view returns (bytes32) { return keccak256(abi.encode(prefix, i_sourceChainSelector, i_chainSelector, i_onRamp)); } // ================================================================ // │ Config │ // ================================================================ /// @notice Returns the static config. /// @dev This function will always return the same struct as the contents is static and can never change. /// RMN depends on this function, if changing, please notify the RMN maintainers. function getStaticConfig() external view returns (StaticConfig memory) { return StaticConfig({ commitStore: i_commitStore, chainSelector: i_chainSelector, sourceChainSelector: i_sourceChainSelector, onRamp: i_onRamp, prevOffRamp: i_prevOffRamp, rmnProxy: i_rmnProxy, tokenAdminRegistry: i_tokenAdminRegistry }); } /// @notice Returns the current dynamic config. /// @return The current config. function getDynamicConfig() external view returns (DynamicConfig memory) { return s_dynamicConfig; } /// @notice Sets the dynamic config. This function is called during `setOCR2Config` flow function _beforeSetConfig(bytes memory onchainConfig) internal override { DynamicConfig memory dynamicConfig = abi.decode(onchainConfig, (DynamicConfig)); if (dynamicConfig.router == address(0)) revert ZeroAddressNotAllowed(); s_dynamicConfig = dynamicConfig; emit ConfigSet( StaticConfig({ commitStore: i_commitStore, chainSelector: i_chainSelector, sourceChainSelector: i_sourceChainSelector, onRamp: i_onRamp, prevOffRamp: i_prevOffRamp, rmnProxy: i_rmnProxy, tokenAdminRegistry: i_tokenAdminRegistry }), dynamicConfig ); } /// @notice Get all tokens which are included in Aggregate Rate Limiting. /// @return sourceTokens The source representation of the tokens that are rate limited. /// @return destTokens The destination representation of the tokens that are rate limited. /// @dev the order of IDs in the list is **not guaranteed**, therefore, if ordering matters when /// making successive calls, one should keep the block height constant to ensure a consistent result. function getAllRateLimitTokens() external view returns (address[] memory sourceTokens, address[] memory destTokens) { uint256 numRateLimitedTokens = s_rateLimitedTokensDestToSource.length(); sourceTokens = new address[](numRateLimitedTokens); destTokens = new address[](numRateLimitedTokens); for (uint256 i = 0; i < numRateLimitedTokens; ++i) { (address destToken, address sourceToken) = s_rateLimitedTokensDestToSource.at(i); sourceTokens[i] = sourceToken; destTokens[i] = destToken; } return (sourceTokens, destTokens); } /// @notice Adds or removes tokens from being used in Aggregate Rate Limiting. /// @param removes - A list of one or more tokens to be removed. /// @param adds - A list of one or more tokens to be added. function updateRateLimitTokens(RateLimitToken[] memory removes, RateLimitToken[] memory adds) external onlyOwner { for (uint256 i = 0; i < removes.length; ++i) { if (s_rateLimitedTokensDestToSource.remove(removes[i].destToken)) { emit TokenAggregateRateLimitRemoved(removes[i].sourceToken, removes[i].destToken); } } for (uint256 i = 0; i < adds.length; ++i) { if (s_rateLimitedTokensDestToSource.set(adds[i].destToken, adds[i].sourceToken)) { emit TokenAggregateRateLimitAdded(adds[i].sourceToken, adds[i].destToken); } } } // ================================================================ // │ Tokens and pools │ // ================================================================ /// @notice Uses a pool to release or mint a token to a receiver address, with balance checks before and after the /// transfer. This is done to ensure the exact number of tokens the pool claims to release are actually transferred. /// @dev The local token address is validated through the TokenAdminRegistry. If, due to some misconfiguration, the /// token is unknown to the registry, the offRamp will revert. The tx, and the tokens, can be retrieved by /// registering the token on this chain, and re-trying the msg. /// @param sourceAmount The amount of tokens to be released/minted. /// @param originalSender The message sender on the source chain. /// @param receiver The address that will receive the tokens. /// @param sourceTokenData A struct containing the local token address, the source pool address and optional data /// returned from the source pool. /// @param offchainTokenData Data fetched offchain by the DON. function _releaseOrMintToken( uint256 sourceAmount, bytes memory originalSender, address receiver, Internal.SourceTokenData memory sourceTokenData, bytes memory offchainTokenData ) internal returns (Client.EVMTokenAmount memory destTokenAmount) { // We need to safely decode the token address from the sourceTokenData, as it could be wrong, // in which case it doesn't have to be a valid EVM address. address localToken = Internal._validateEVMAddress(sourceTokenData.destTokenAddress); // We check with the token admin registry if the token has a pool on this chain. address localPoolAddress = ITokenAdminRegistry(i_tokenAdminRegistry).getPool(localToken); // This will call the supportsInterface through the ERC165Checker, and not directly on the pool address. // This is done to prevent a pool from reverting the entire transaction if it doesn't support the interface. // The call gets a max or 30k gas per instance, of which there are three. This means gas estimations should // account for 90k gas overhead due to the interface check. if (localPoolAddress == address(0) || !localPoolAddress.supportsInterface(Pool.CCIP_POOL_V1)) { revert NotACompatiblePool(localPoolAddress); } // We retrieve the local token balance of the receiver before the pool call. (uint256 balancePre, uint256 gasLeft) = _getBalanceOfReceiver(receiver, localToken, sourceTokenData.destGasAmount); // We determined that the pool address is a valid EVM address, but that does not mean the code at this // address is a (compatible) pool contract. _callWithExactGasSafeReturnData will check if the location // contains a contract. If it doesn't it reverts with a known error, which we catch gracefully. // We call the pool with exact gas to increase resistance against malicious tokens or token pools. // We protects against return data bombs by capping the return data size at MAX_RET_BYTES. (bool success, bytes memory returnData, uint256 gasUsedReleaseOrMint) = CallWithExactGas ._callWithExactGasSafeReturnData( abi.encodeCall( IPoolV1.releaseOrMint, Pool.ReleaseOrMintInV1({ originalSender: originalSender, receiver: receiver, amount: sourceAmount, localToken: localToken, remoteChainSelector: i_sourceChainSelector, sourcePoolAddress: sourceTokenData.sourcePoolAddress, sourcePoolData: sourceTokenData.extraData, offchainTokenData: offchainTokenData }) ), localPoolAddress, gasLeft, Internal.GAS_FOR_CALL_EXACT_CHECK, Internal.MAX_RET_BYTES ); // wrap and rethrow the error so we can catch it lower in the stack if (!success) revert TokenHandlingError(returnData); // If the call was successful, the returnData should contain only the local token amount. if (returnData.length != Pool.CCIP_POOL_V1_RET_BYTES) { revert InvalidDataLength(Pool.CCIP_POOL_V1_RET_BYTES, returnData.length); } uint256 localAmount = abi.decode(returnData, (uint256)); // We don't need to do balance checks if the pool is the receiver, as they would always fail in the case // of a lockRelease pool. if (receiver != localPoolAddress) { (uint256 balancePost,) = _getBalanceOfReceiver(receiver, localToken, gasLeft - gasUsedReleaseOrMint); // First we check if the subtraction would result in an underflow to ensure we revert with a clear error if (balancePost < balancePre || balancePost - balancePre != localAmount) { revert ReleaseOrMintBalanceMismatch(localAmount, balancePre, balancePost); } } return Client.EVMTokenAmount({token: localToken, amount: localAmount}); } function _getBalanceOfReceiver( address receiver, address token, uint256 gasLimit ) internal returns (uint256 balance, uint256 gasLeft) { (bool success, bytes memory returnData, uint256 gasUsed) = CallWithExactGas._callWithExactGasSafeReturnData( abi.encodeCall(IERC20.balanceOf, (receiver)), token, gasLimit, Internal.GAS_FOR_CALL_EXACT_CHECK, Internal.MAX_RET_BYTES ); if (!success) revert TokenHandlingError(returnData); // If the call was successful, the returnData should contain only the balance. if (returnData.length != Internal.MAX_BALANCE_OF_RET_BYTES) { revert InvalidDataLength(Internal.MAX_BALANCE_OF_RET_BYTES, returnData.length); } // Return the decoded balance, which cannot fail as we checked the length, and the gas that is left // after this call. return (abi.decode(returnData, (uint256)), gasLimit - gasUsed); } /// @notice Uses pools to release or mint a number of different tokens to a receiver address. /// @param sourceTokenAmounts List of tokens and amount values to be released/minted. /// @param originalSender The message sender. /// @param receiver The address that will receive the tokens. /// @param encodedSourceTokenData Array of token data returned by token pools on the source chain. /// @param offchainTokenData Array of token data fetched offchain by the DON. /// @dev This function wrappes the token pool call in a try catch block to gracefully handle /// any non-rate limiting errors that may occur. If we encounter a rate limiting related error /// we bubble it up. If we encounter a non-rate limiting error we wrap it in a TokenHandlingError. function _releaseOrMintTokens( Client.EVMTokenAmount[] calldata sourceTokenAmounts, bytes memory originalSender, address receiver, bytes[] calldata encodedSourceTokenData, bytes[] calldata offchainTokenData, uint32[] memory tokenGasOverrides ) internal returns (Client.EVMTokenAmount[] memory destTokenAmounts) { // Creating a copy is more gas efficient than initializing a new array. destTokenAmounts = sourceTokenAmounts; uint256 value = 0; for (uint256 i = 0; i < sourceTokenAmounts.length; ++i) { Internal.SourceTokenData memory sourceTokenData = abi.decode(encodedSourceTokenData[i], (Internal.SourceTokenData)); if (tokenGasOverrides.length != 0) { if (tokenGasOverrides[i] != 0) { sourceTokenData.destGasAmount = tokenGasOverrides[i]; } } destTokenAmounts[i] = _releaseOrMintToken( sourceTokenAmounts[i].amount, originalSender, receiver, // This should never revert as the onRamp encodes the sourceTokenData struct. Only the inner components from // this struct come from untrusted sources. sourceTokenData, offchainTokenData[i] ); if (s_rateLimitedTokensDestToSource.contains(destTokenAmounts[i].token)) { value += _getTokenValue(destTokenAmounts[i], IPriceRegistry(s_dynamicConfig.priceRegistry)); } } if (value > 0) _rateLimitValue(value); return destTokenAmounts; } // ================================================================ // │ Access │ // ================================================================ /// @notice Reverts as this contract should not access CCIP messages function ccipReceive(Client.Any2EVMMessage calldata) external pure { // solhint-disable-next-line revert(); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; interface ITypeAndVersion { function typeAndVersion() external pure returns (string memory); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import {Client} from "../libraries/Client.sol"; /// @notice Application contracts that intend to receive messages from /// the router should implement this interface. interface IAny2EVMMessageReceiver { /// @notice Called by the Router to deliver a message. /// If this reverts, any token transfers also revert. The message /// will move to a FAILED state and become available for manual execution. /// @param message CCIP Message /// @dev Note ensure you check the msg.sender is the OffRampRouter function ccipReceive(Client.Any2EVMMessage calldata message) external; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; interface IAny2EVMOffRamp { /// @notice Returns the the current nonce for a receiver. /// @param sender The sender address /// @return nonce The nonce value belonging to the sender address. function getSenderNonce(address sender) external view returns (uint64 nonce); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; interface ICommitStore { /// @notice Returns timestamp of when root was accepted or 0 if verification fails. /// @dev This method uses a merkle tree within a merkle tree, with the hashedLeaves, /// proofs and proofFlagBits being used to get the root of the inner tree. /// This root is then used as the singular leaf of the outer tree. function verify( bytes32[] calldata hashedLeaves, bytes32[] calldata proofs, uint256 proofFlagBits ) external view returns (uint256 timestamp); /// @notice Returns the expected next sequence number function getExpectedNextSequenceNumber() external view returns (uint64 sequenceNumber); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import {Pool} from "../libraries/Pool.sol"; import {IERC165} from "../../vendor/openzeppelin-solidity/v5.0.2/contracts/utils/introspection/IERC165.sol"; /// @notice Shared public interface for multiple V1 pool types. /// Each pool type handles a different child token model (lock/unlock, mint/burn.) interface IPoolV1 is IERC165 { /// @notice Lock tokens into the pool or burn the tokens. /// @param lockOrBurnIn Encoded data fields for the processing of tokens on the source chain. /// @return lockOrBurnOut Encoded data fields for the processing of tokens on the destination chain. function lockOrBurn(Pool.LockOrBurnInV1 calldata lockOrBurnIn) external returns (Pool.LockOrBurnOutV1 memory lockOrBurnOut); /// @notice Releases or mints tokens to the receiver address. /// @param releaseOrMintIn All data required to release or mint tokens. /// @return releaseOrMintOut The amount of tokens released or minted on the local chain, denominated /// in the local token's decimals. /// @dev The offramp asserts that the balanceOf of the receiver has been incremented by exactly the number /// of tokens that is returned in ReleaseOrMintOutV1.destinationAmount. If the amounts do not match, the tx reverts. function releaseOrMint(Pool.ReleaseOrMintInV1 calldata releaseOrMintIn) external returns (Pool.ReleaseOrMintOutV1 memory); /// @notice Checks whether a remote chain is supported in the token pool. /// @param remoteChainSelector The selector of the remote chain. /// @return true if the given chain is a permissioned remote chain. function isSupportedChain(uint64 remoteChainSelector) external view returns (bool); /// @notice Returns if the token pool supports the given token. /// @param token The address of the token. /// @return true if the token is supported by the pool. function isSupportedToken(address token) external view returns (bool); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import {Client} from "../libraries/Client.sol"; import {Internal} from "../libraries/Internal.sol"; interface IPriceRegistry { /// @notice Token price data feed configuration struct TokenPriceFeedConfig { address dataFeedAddress; // ──╮ AggregatorV3Interface contract (0 - feed is unset) uint8 tokenDecimals; // ──────╯ Decimals of the token that the feed represents } /// @notice Update the price for given tokens and gas prices for given chains. /// @param priceUpdates The price updates to apply. function updatePrices(Internal.PriceUpdates memory priceUpdates) external; /// @notice Get the `tokenPrice` for a given token. /// @param token The token to get the price for. /// @return tokenPrice The tokenPrice for the given token. function getTokenPrice(address token) external view returns (Internal.TimestampedPackedUint224 memory); /// @notice Get the `tokenPrice` for a given token, checks if the price is valid. /// @param token The token to get the price for. /// @return tokenPrice The tokenPrice for the given token if it exists and is valid. function getValidatedTokenPrice(address token) external view returns (uint224); /// @notice Get the `tokenPrice` for an array of tokens. /// @param tokens The tokens to get prices for. /// @return tokenPrices The tokenPrices for the given tokens. function getTokenPrices(address[] calldata tokens) external view returns (Internal.TimestampedPackedUint224[] memory); /// @notice Returns the token price data feed configuration /// @param token The token to retrieve the feed config for /// @return dataFeedAddress The token price data feed config (if feed address is 0, the feed config is disabled) function getTokenPriceFeedConfig(address token) external view returns (TokenPriceFeedConfig memory); /// @notice Get an encoded `gasPrice` for a given destination chain ID. /// The 224-bit result encodes necessary gas price components. /// On L1 chains like Ethereum or Avax, the only component is the gas price. /// On Optimistic Rollups, there are two components - the L2 gas price, and L1 base fee for data availability. /// On future chains, there could be more or differing price components. /// PriceRegistry does not contain chain-specific logic to parse destination chain price components. /// @param destChainSelector The destination chain to get the price for. /// @return gasPrice The encoded gasPrice for the given destination chain ID. function getDestinationChainGasPrice(uint64 destChainSelector) external view returns (Internal.TimestampedPackedUint224 memory); /// @notice Gets the fee token price and the gas price, both denominated in dollars. /// @param token The source token to get the price for. /// @param destChainSelector The destination chain to get the gas price for. /// @return tokenPrice The price of the feeToken in 1e18 dollars per base unit. /// @return gasPrice The price of gas in 1e18 dollars per base unit. function getTokenAndGasPrices( address token, uint64 destChainSelector ) external view returns (uint224 tokenPrice, uint224 gasPrice); /// @notice Convert a given token amount to target token amount. /// @param fromToken The given token address. /// @param fromTokenAmount The given token amount. /// @param toToken The target token address. /// @return toTokenAmount The target token amount. function convertTokenAmount( address fromToken, uint256 fromTokenAmount, address toToken ) external view returns (uint256 toTokenAmount); /// @notice Get the list of fee tokens. /// @return The tokens set as fee tokens. function getFeeTokens() external view returns (address[] memory); /// @notice Validates the ccip message & returns the fee /// @param destChainSelector The destination chain selector. /// @param message The message to get quote for. /// @return feeTokenAmount The amount of fee token needed for the fee, in smallest denomination of the fee token. function getValidatedFee( uint64 destChainSelector, Client.EVM2AnyMessage calldata message ) external view returns (uint256 feeTokenAmount); /// @notice Converts the extraArgs to the latest version and returns the converted message fee in juels /// @param destChainSelector destination chain selector to process /// @param feeToken Fee token address used to pay for message fees /// @param feeTokenAmount Fee token amount /// @param extraArgs Message extra args that were passed in by the client /// @return msgFeeJuels message fee in juels /// @return isOutOfOrderExecution true if the message should be executed out of order /// @return convertedExtraArgs extra args converted to the latest family-specific args version function processMessageArgs( uint64 destChainSelector, address feeToken, uint256 feeTokenAmount, bytes memory extraArgs ) external view returns (uint256 msgFeeJuels, bool isOutOfOrderExecution, bytes memory convertedExtraArgs); /// @notice Validates pool return data /// @param destChainSelector Destination chain selector to which the token amounts are sent to /// @param rampTokenAmounts Token amounts with populated pool return data /// @param sourceTokenAmounts Token amounts originally sent in a Client.EVM2AnyMessage message function validatePoolReturnData( uint64 destChainSelector, Internal.RampTokenAmount[] calldata rampTokenAmounts, Client.EVMTokenAmount[] calldata sourceTokenAmounts ) external view; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /// @notice This interface contains the only RMN-related functions that might be used on-chain by other CCIP contracts. interface IRMN { /// @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 Iff there is an active global or legacy curse, this function returns true. function isCursed() external view returns (bool); /// @notice Iff there is an active global curse, or an active curse for `subject`, this function returns true. /// @param subject To check whether a particular chain is cursed, set to bytes16(uint128(chainSelector)). function isCursed(bytes16 subject) 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: BUSL-1.1 pragma solidity ^0.8.0; interface ITokenAdminRegistry { /// @notice Returns the pool for the given token. function getPool(address token) external view returns (address); /// @notice Proposes an administrator for the given token as pending administrator. /// @param localToken The token to register the administrator for. /// @param administrator The administrator to register. function proposeAdministrator(address localToken, address administrator) external; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /// @notice This library contains various callWithExactGas functions. All of them are /// safe from gas bomb attacks. /// @dev There is code duplication in this library. This is done to not leave the assembly /// the blocks. library CallWithExactGas { error NoContract(); error NoGasForCallExactCheck(); error NotEnoughGasForCall(); bytes4 internal constant NO_CONTRACT_SIG = 0x0c3b563c; bytes4 internal constant NO_GAS_FOR_CALL_EXACT_CHECK_SIG = 0xafa32a2c; bytes4 internal constant NOT_ENOUGH_GAS_FOR_CALL_SIG = 0x37c3be29; /// @notice calls target address with exactly gasAmount gas and payload as calldata. /// Accounts for gasForCallExactCheck gas that will be used by this function. Will revert /// if the target is not a contact. Will revert when there is not enough gas to call the /// target with gasAmount gas. /// @dev Ignores the return data, which makes it immune to gas bomb attacks. /// @return success whether the call succeeded function _callWithExactGas( bytes memory payload, address target, uint256 gasLimit, uint16 gasForCallExactCheck ) internal returns (bool success) { assembly { // solidity calls check that a contract actually exists at the destination, so we do the same // Note we do this check prior to measuring gas so gasForCallExactCheck (our "cushion") // doesn't need to account for it. if iszero(extcodesize(target)) { mstore(0x0, NO_CONTRACT_SIG) revert(0x0, 0x4) } let g := gas() // Compute g -= gasForCallExactCheck and check for underflow // The gas actually passed to the callee is _min(gasAmount, 63//64*gas available). // We want to ensure that we revert if gasAmount > 63//64*gas available // as we do not want to provide them with less, however that check itself costs // gas. gasForCallExactCheck ensures we have at least enough gas to be able // to revert if gasAmount > 63//64*gas available. if lt(g, gasForCallExactCheck) { mstore(0x0, NO_GAS_FOR_CALL_EXACT_CHECK_SIG) revert(0x0, 0x4) } g := sub(g, gasForCallExactCheck) // if g - g//64 <= gasAmount, revert. We subtract g//64 because of EIP-150 if iszero(gt(sub(g, div(g, 64)), gasLimit)) { mstore(0x0, NOT_ENOUGH_GAS_FOR_CALL_SIG) revert(0x0, 0x4) } // call and return whether we succeeded. ignore return data // call(gas,addr,value,argsOffset,argsLength,retOffset,retLength) success := call(gasLimit, target, 0, add(payload, 0x20), mload(payload), 0x0, 0x0) } return success; } /// @notice calls target address with exactly gasAmount gas and payload as calldata. /// Account for gasForCallExactCheck gas that will be used by this function. Will revert /// if the target is not a contact. Will revert when there is not enough gas to call the /// target with gasAmount gas. /// @dev Caps the return data length, which makes it immune to gas bomb attacks. /// @dev Return data cap logic borrowed from /// https://github.com/nomad-xyz/ExcessivelySafeCall/blob/main/src/ExcessivelySafeCall.sol. /// @return success whether the call succeeded /// @return retData the return data from the call, capped at maxReturnBytes bytes /// @return gasUsed the gas used by the external call. Does not include the overhead of this function. function _callWithExactGasSafeReturnData( bytes memory payload, address target, uint256 gasLimit, uint16 gasForCallExactCheck, uint16 maxReturnBytes ) internal returns (bool success, bytes memory retData, uint256 gasUsed) { // allocate retData memory ahead of time retData = new bytes(maxReturnBytes); assembly { // solidity calls check that a contract actually exists at the destination, so we do the same // Note we do this check prior to measuring gas so gasForCallExactCheck (our "cushion") // doesn't need to account for it. if iszero(extcodesize(target)) { mstore(0x0, NO_CONTRACT_SIG) revert(0x0, 0x4) } let g := gas() // Compute g -= gasForCallExactCheck and check for underflow // The gas actually passed to the callee is _min(gasAmount, 63//64*gas available). // We want to ensure that we revert if gasAmount > 63//64*gas available // as we do not want to provide them with less, however that check itself costs // gas. gasForCallExactCheck ensures we have at least enough gas to be able // to revert if gasAmount > 63//64*gas available. if lt(g, gasForCallExactCheck) { mstore(0x0, NO_GAS_FOR_CALL_EXACT_CHECK_SIG) revert(0x0, 0x4) } g := sub(g, gasForCallExactCheck) // if g - g//64 <= gasAmount, revert. We subtract g//64 because of EIP-150 if iszero(gt(sub(g, div(g, 64)), gasLimit)) { mstore(0x0, NOT_ENOUGH_GAS_FOR_CALL_SIG) revert(0x0, 0x4) } // We save the gas before the call so we can calculate how much gas the call used let gasBeforeCall := gas() // call and return whether we succeeded. ignore return data // call(gas,addr,value,argsOffset,argsLength,retOffset,retLength) success := call(gasLimit, target, 0, add(payload, 0x20), mload(payload), 0x0, 0x0) gasUsed := sub(gasBeforeCall, gas()) // limit our copy to maxReturnBytes bytes let toCopy := returndatasize() if gt(toCopy, maxReturnBytes) { toCopy := maxReturnBytes } // Store the length of the copied bytes mstore(retData, toCopy) // copy the bytes from retData[0:_toCopy] returndatacopy(add(retData, 0x20), 0x0, toCopy) } return (success, retData, gasUsed); } /// @notice Calls target address with exactly gasAmount gas and payload as calldata /// or reverts if at least gasLimit gas is not available. /// @dev Does not check if target is a contract. If it is not a contract, the low-level /// call will still be made and it will succeed. /// @dev Ignores the return data, which makes it immune to gas bomb attacks. /// @return success whether the call succeeded /// @return sufficientGas Whether there was enough gas to make the call function _callWithExactGasEvenIfTargetIsNoContract( bytes memory payload, address target, uint256 gasLimit, uint16 gasForCallExactCheck ) internal returns (bool success, bool sufficientGas) { assembly { let g := gas() // Compute g -= CALL_WITH_EXACT_GAS_CUSHION and check for underflow. We // need the cushion since the logic following the above call to gas also // costs gas which we cannot account for exactly. So cushion is a // conservative upper bound for the cost of this logic. if iszero(lt(g, gasForCallExactCheck)) { g := sub(g, gasForCallExactCheck) // If g - g//64 <= gasAmount, we don't have enough gas. We subtract g//64 because of EIP-150. if gt(sub(g, div(g, 64)), gasLimit) { // Call and ignore success/return data. Note that we did not check // whether a contract actually exists at the target address. success := call(gasLimit, target, 0, add(payload, 0x20), mload(payload), 0x0, 0x0) sufficientGas := true } } } return (success, sufficientGas); } }
// SPDX-License-Identifier: MIT /* solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore */ pragma solidity ^0.8.0; import {EnumerableMap} from "../../vendor/openzeppelin-solidity/v4.8.3/contracts/utils/structs/EnumerableMap.sol"; import {EnumerableMapBytes32} from "./EnumerableMapBytes32.sol"; // TODO: the lib can be replaced with OZ v5.1 post-upgrade, which has AddressToAddressMap and AddressToBytes32Map library EnumerableMapAddresses { using EnumerableMap for EnumerableMap.UintToAddressMap; using EnumerableMap for EnumerableMap.Bytes32ToBytes32Map; using EnumerableMapBytes32 for EnumerableMapBytes32.Bytes32ToBytesMap; struct AddressToAddressMap { EnumerableMap.UintToAddressMap _inner; } // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function set(AddressToAddressMap storage map, address key, address value) internal returns (bool) { return map._inner.set(uint256(uint160(key)), value); } // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function remove(AddressToAddressMap storage map, address key) internal returns (bool) { return map._inner.remove(uint256(uint160(key))); } // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function contains(AddressToAddressMap storage map, address key) internal view returns (bool) { return map._inner.contains(uint256(uint160(key))); } // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function length(AddressToAddressMap storage map) internal view returns (uint256) { return map._inner.length(); } // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function at(AddressToAddressMap storage map, uint256 index) internal view returns (address, address) { (uint256 key, address value) = map._inner.at(index); return (address(uint160(key)), value); } // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function tryGet(AddressToAddressMap storage map, address key) internal view returns (bool, address) { return map._inner.tryGet(uint256(uint160(key))); } // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function get(AddressToAddressMap storage map, address key) internal view returns (address) { return map._inner.get(uint256(uint160(key))); } // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function get( AddressToAddressMap storage map, address key, string memory errorMessage ) internal view returns (address) { return map._inner.get(uint256(uint160(key)), errorMessage); } struct AddressToBytes32Map { EnumerableMap.Bytes32ToBytes32Map _inner; } /** * @dev Adds a key-value pair to a map, or updates the value for an existing * key. O(1). * * Returns true if the key was added to the map, that is if it was not * already present. */ // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function set(AddressToBytes32Map storage map, address key, bytes32 value) internal returns (bool) { return map._inner.set(bytes32(uint256(uint160(key))), value); } /** * @dev Removes a value from a map. O(1). * * Returns true if the key was removed from the map, that is if it was present. */ // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function remove(AddressToBytes32Map storage map, address key) internal returns (bool) { return map._inner.remove(bytes32(uint256(uint160(key)))); } /** * @dev Returns true if the key is in the map. O(1). */ // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function contains(AddressToBytes32Map storage map, address key) internal view returns (bool) { return map._inner.contains(bytes32(uint256(uint160(key)))); } /** * @dev Returns the number of elements in the map. O(1). */ // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function length(AddressToBytes32Map storage map) internal view returns (uint256) { return map._inner.length(); } /** * @dev Returns the element stored at position `index` in the map. 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}. */ // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function at(AddressToBytes32Map storage map, uint256 index) internal view returns (address, bytes32) { (bytes32 key, bytes32 value) = map._inner.at(index); return (address(uint160(uint256(key))), value); } /** * @dev Tries to returns the value associated with `key`. O(1). * Does not revert if `key` is not in the map. */ // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function tryGet(AddressToBytes32Map storage map, address key) internal view returns (bool, bytes32) { (bool success, bytes32 value) = map._inner.tryGet(bytes32(uint256(uint160(key)))); return (success, value); } /** * @dev Returns the value associated with `key`. O(1). * * Requirements: * * - `key` must be in the map. */ // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function get(AddressToBytes32Map storage map, address key) internal view returns (bytes32) { return map._inner.get(bytes32(uint256(uint160(key)))); } struct AddressToBytesMap { EnumerableMapBytes32.Bytes32ToBytesMap _inner; } /** * @dev Sets the value for `key` in the map. Returns true if the key was added to the map, that is if it was not already present. * @param map The map where the value will be set * @param key The key to set the value for * @param value The value to set for the key * @return bool indicating whether the key was added to the map */ // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function set(AddressToBytesMap storage map, address key, bytes memory value) internal returns (bool) { return map._inner.set(bytes32(uint256(uint160(key))), value); } /** * @dev Removes the value for `key` in the map. Returns true if the key was removed from the map, that is if it was present. * @param map The map where the value will be removed * @param key The key to remove the value for * @return bool indicating whether the key was removed from the map */ // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function remove(AddressToBytesMap storage map, address key) internal returns (bool) { return map._inner.remove(bytes32(uint256(uint160(key)))); } /** * @dev Checks if the map contains the `key`. Returns true if the key is in the map. * @param map The map to check for the presence of the key * @param key The key to check for presence in the map * @return bool indicating whether the key is in the map */ // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function contains(AddressToBytesMap storage map, address key) internal view returns (bool) { return map._inner.contains(bytes32(uint256(uint160(key)))); } /** * @dev Returns the number of elements in the map. * @param map The map to check the length of * @return uint256 indicating the number of elements in the map */ // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function length(AddressToBytesMap storage map) internal view returns (uint256) { return map._inner.length(); } /** * @dev Returns the element stored at position `index` in the map. 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. * @param map The map to retrieve the element from * @param index The index to retrieve the element at * @return address The key of the element at the specified index * @return bytes The value of the element at the specified index */ // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function at(AddressToBytesMap storage map, uint256 index) internal view returns (address, bytes memory) { (bytes32 key, bytes memory value) = map._inner.at(index); return (address(uint160(uint256(key))), value); } /** * @dev Tries to return the value associated with `key`. Does not revert if `key` is not in the map. * @param map The map to retrieve the value from * @param key The key to retrieve the value for * @return bool indicating whether the key was in the map * @return bytes The value associated with the key */ // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function tryGet(AddressToBytesMap storage map, address key) internal view returns (bool, bytes memory) { return map._inner.tryGet(bytes32(uint256(uint160(key)))); } /** * @dev Returns the value associated with `key`. * @param map The map to retrieve the value from * @param key The key to retrieve the value for * @return bytes The value associated with the key */ // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function get(AddressToBytesMap storage map, address key) internal view returns (bytes memory) { return map._inner.get(bytes32(uint256(uint160(key)))); } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity 0.8.24; import {IPriceRegistry} from "./interfaces/IPriceRegistry.sol"; import {OwnerIsCreator} from "./../shared/access/OwnerIsCreator.sol"; import {Client} from "./libraries/Client.sol"; import {RateLimiter} from "./libraries/RateLimiter.sol"; import {USDPriceWith18Decimals} from "./libraries/USDPriceWith18Decimals.sol"; /// @notice The aggregate rate limiter is a wrapper of the token bucket rate limiter /// which permits rate limiting based on the aggregate value of a group of /// token transfers, using a price registry to convert to a numeraire asset (e.g. USD). contract AggregateRateLimiter is OwnerIsCreator { using RateLimiter for RateLimiter.TokenBucket; using USDPriceWith18Decimals for uint224; error PriceNotFoundForToken(address token); event AdminSet(address newAdmin); // The address of the token limit admin that has the same permissions as the owner. address internal s_admin; // The token bucket object that contains the bucket state. RateLimiter.TokenBucket private s_rateLimiter; /// @param config The RateLimiter.Config constructor(RateLimiter.Config memory config) { s_rateLimiter = RateLimiter.TokenBucket({ rate: config.rate, capacity: config.capacity, tokens: config.capacity, lastUpdated: uint32(block.timestamp), isEnabled: config.isEnabled }); } /// @notice Consumes value from the rate limiter bucket based on the token value given. function _rateLimitValue(uint256 value) internal { s_rateLimiter._consume(value, address(0)); } function _getTokenValue( Client.EVMTokenAmount memory tokenAmount, IPriceRegistry priceRegistry ) internal view returns (uint256) { // not fetching validated price, as price staleness is not important for value-based rate limiting // we only need to verify the price is not 0 uint224 pricePerToken = priceRegistry.getTokenPrice(tokenAmount.token).value; if (pricePerToken == 0) revert PriceNotFoundForToken(tokenAmount.token); return pricePerToken._calcUSDValueFromTokenAmount(tokenAmount.amount); } /// @notice Gets the token bucket with its values for the block it was requested at. /// @return The token bucket. function currentRateLimiterState() external view returns (RateLimiter.TokenBucket memory) { return s_rateLimiter._currentTokenBucketState(); } /// @notice Sets the rate limited config. /// @param config The new rate limiter config. /// @dev should only be callable by the owner or token limit admin. function setRateLimiterConfig(RateLimiter.Config memory config) external onlyAdminOrOwner { s_rateLimiter._setTokenBucketConfig(config); } // ================================================================ // │ Access │ // ================================================================ /// @notice Gets the token limit admin address. /// @return the token limit admin address. function getTokenLimitAdmin() external view returns (address) { return s_admin; } /// @notice Sets the token limit admin address. /// @param newAdmin the address of the new admin. /// @dev setting this to address(0) indicates there is no active admin. function setAdmin(address newAdmin) external onlyAdminOrOwner { s_admin = newAdmin; emit AdminSet(newAdmin); } /// @notice a modifier that allows the owner or the s_tokenLimitAdmin call the functions /// it is applied to. modifier onlyAdminOrOwner() { if (msg.sender != owner() && msg.sender != s_admin) revert RateLimiter.OnlyCallableByAdminOrOwner(); _; } }
// 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(EVMExtraArgsV2) } // 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); } // bytes4(keccak256("CCIP EVMExtraArgsV2")); bytes4 public constant EVM_EXTRA_ARGS_V2_TAG = 0x181dcf10; /// @param gasLimit: gas limit for the callback on the destination chain. /// @param allowOutOfOrderExecution: if true, it indicates that the message can be executed in any order relative to other messages from the same sender. /// This value's default varies by chain. On some chains, a particular value is enforced, meaning if the expected value /// is not set, the message request will revert. struct EVMExtraArgsV2 { uint256 gasLimit; bool allowOutOfOrderExecution; } function _argsToBytes(EVMExtraArgsV2 memory extraArgs) internal pure returns (bytes memory bts) { return abi.encodeWithSelector(EVM_EXTRA_ARGS_V2_TAG, extraArgs); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import {MerkleMultiProof} from "../libraries/MerkleMultiProof.sol"; import {Client} from "./Client.sol"; // Library for CCIP internal definitions common to multiple contracts. library Internal { error InvalidEVMAddress(bytes encodedAddress); /// @dev The minimum amount of gas to perform the call with exact gas. /// We include this in the offramp so that we can redeploy to adjust it /// should a hardfork change the gas costs of relevant opcodes in callWithExactGas. uint16 internal constant GAS_FOR_CALL_EXACT_CHECK = 5_000; // @dev We limit return data to a selector plus 4 words. This is to avoid // malicious contracts from returning large amounts of data and causing // repeated out-of-gas scenarios. uint16 internal constant MAX_RET_BYTES = 4 + 4 * 32; /// @dev The expected number of bytes returned by the balanceOf function. uint256 internal constant MAX_BALANCE_OF_RET_BYTES = 32; /// @notice A collection of token price and gas price updates. /// @dev RMN depends on this struct, if changing, please notify the RMN maintainers. struct PriceUpdates { TokenPriceUpdate[] tokenPriceUpdates; GasPriceUpdate[] gasPriceUpdates; } /// @notice Token price in USD. /// @dev RMN depends on this struct, if changing, please notify the RMN maintainers. struct TokenPriceUpdate { address sourceToken; // Source token uint224 usdPerToken; // 1e18 USD per 1e18 of the smallest token denomination. } /// @notice Gas price for a given chain in USD, its value may contain tightly packed fields. /// @dev RMN depends on this struct, if changing, please notify the RMN maintainers. struct GasPriceUpdate { uint64 destChainSelector; // Destination chain selector uint224 usdPerUnitGas; // 1e18 USD per smallest unit (e.g. wei) of destination chain gas } /// @notice A timestamped uint224 value that can contain several tightly packed fields. struct TimestampedPackedUint224 { uint224 value; // ───────╮ Value in uint224, packed. uint32 timestamp; // ────╯ Timestamp of the most recent price update. } /// @dev Gas price is stored in 112-bit unsigned int. uint224 can pack 2 prices. /// When packing L1 and L2 gas prices, L1 gas price is left-shifted to the higher-order bits. /// Using uint8 type, which cannot be higher than other bit shift operands, to avoid shift operand type warning. uint8 public constant GAS_PRICE_BITS = 112; struct PoolUpdate { address token; // The IERC20 token address address pool; // The token pool address } struct SourceTokenData { // The source pool address, abi encoded. This value is trusted as it was obtained through the onRamp. It can be // relied upon by the destination pool to validate the source pool. bytes sourcePoolAddress; // The address of the destination token, abi encoded in the case of EVM chains // This value is UNTRUSTED as any pool owner can return whatever value they want. bytes destTokenAddress; // Optional pool data to be transferred to the destination chain. Be default this is capped at // CCIP_LOCK_OR_BURN_V1_RET_BYTES bytes. If more data is required, the TokenTransferFeeConfig.destBytesOverhead // has to be set for the specific token. bytes extraData; uint32 destGasAmount; // The amount of gas available for the releaseOrMint and balanceOf calls on the offRamp } /// @notice Report that is submitted by the execution DON at the execution phase. (including chain selector data) /// @dev RMN depends on this struct, if changing, please notify the RMN maintainers. struct ExecutionReportSingleChain { uint64 sourceChainSelector; // Source chain selector for which the report is submitted Any2EVMRampMessage[] messages; // Contains a bytes array for each message, each inner bytes array contains bytes per transferred token bytes[][] offchainTokenData; bytes32[] proofs; uint256 proofFlagBits; } /// @notice Report that is submitted by the execution DON at the execution phase. /// @dev RMN depends on this struct, if changing, please notify the RMN maintainers. struct ExecutionReport { EVM2EVMMessage[] messages; // Contains a bytes array for each message, each inner bytes array contains bytes per transferred token bytes[][] offchainTokenData; bytes32[] proofs; uint256 proofFlagBits; } /// @notice The cross chain message that gets committed to EVM chains. /// @dev RMN depends on this struct, if changing, please notify the RMN maintainers. struct EVM2EVMMessage { uint64 sourceChainSelector; // ────────╮ the chain selector of the source chain, note: not chainId address sender; // ────────────────────╯ sender address on the source chain address receiver; // ──────────────────╮ receiver address on the destination chain uint64 sequenceNumber; // ─────────────╯ sequence number, not unique across lanes uint256 gasLimit; // user supplied maximum gas amount available for dest chain execution bool strict; // ───────────────────────╮ DEPRECATED uint64 nonce; // │ nonce for this lane for this sender, not unique across senders/lanes address feeToken; // ──────────────────╯ fee token uint256 feeTokenAmount; // fee token amount bytes data; // arbitrary data payload supplied by the message sender Client.EVMTokenAmount[] tokenAmounts; // array of tokens and amounts to transfer bytes[] sourceTokenData; // array of token data, one per token bytes32 messageId; // a hash of the message data } /// @dev EVM2EVMMessage struct has 13 fields, including 3 variable arrays. /// Each variable array takes 1 more slot to store its length. /// When abi encoded, excluding array contents, /// EVM2EVMMessage takes up a fixed number of 16 lots, 32 bytes each. /// For structs that contain arrays, 1 more slot is added to the front, reaching a total of 17. uint256 public constant MESSAGE_FIXED_BYTES = 32 * 17; /// @dev Each token transfer adds 1 EVMTokenAmount and 3 bytes at 3 slots each and one slot for the destGasAmount. /// When abi encoded, each EVMTokenAmount takes 2 slots, each bytes takes 1 slot for length, one slot of data and one /// slot for the offset. This results in effectively 3*3 slots per SourceTokenData. /// 0x20 /// destGasAmount /// sourcePoolAddress_offset /// destTokenAddress_offset /// extraData_offset /// sourcePoolAddress_length /// sourcePoolAddress_content // assume 1 slot /// destTokenAddress_length /// destTokenAddress_content // assume 1 slot /// extraData_length // contents billed separately uint256 public constant MESSAGE_FIXED_BYTES_PER_TOKEN = 32 * ((1 + 3 * 3) + 2); /// @dev Any2EVMRampMessage struct has 10 fields, including 3 variable unnested arrays (data, receiver and tokenAmounts). /// Each variable array takes 1 more slot to store its length. /// When abi encoded, excluding array contents, /// Any2EVMMessage takes up a fixed number of 13 slots, 32 bytes each. /// For structs that contain arrays, 1 more slot is added to the front, reaching a total of 14. /// The fixed bytes does not cover struct data (this is represented by ANY_2_EVM_MESSAGE_FIXED_BYTES_PER_TOKEN) uint256 public constant ANY_2_EVM_MESSAGE_FIXED_BYTES = 32 * 14; /// @dev Each token transfer adds 1 RampTokenAmount /// RampTokenAmount has 4 fields, including 3 bytes. /// Each bytes takes 1 more slot to store its length, and one slot to store the offset. /// When abi encoded, each token transfer takes up 10 slots, excl bytes contents. uint256 public constant ANY_2_EVM_MESSAGE_FIXED_BYTES_PER_TOKEN = 32 * 10; bytes32 internal constant EVM_2_EVM_MESSAGE_HASH = keccak256("EVM2EVMMessageHashV2"); /// @dev Used to hash messages for single-lane ramps. /// OnRamp hash(EVM2EVMMessage) = OffRamp hash(EVM2EVMMessage) /// The EVM2EVMMessage's messageId is expected to be the output of this hash function /// @param original Message to hash /// @param metadataHash Immutable metadata hash representing a lane with a fixed OnRamp /// @return hashedMessage hashed message as a keccak256 function _hash(EVM2EVMMessage memory original, bytes32 metadataHash) internal pure returns (bytes32) { // Fixed-size message fields are included in nested hash to reduce stack pressure. // This hashing scheme is also used by RMN. If changing it, please notify the RMN maintainers. return keccak256( abi.encode( MerkleMultiProof.LEAF_DOMAIN_SEPARATOR, metadataHash, keccak256( abi.encode( original.sender, original.receiver, original.sequenceNumber, original.gasLimit, original.strict, original.nonce, original.feeToken, original.feeTokenAmount ) ), keccak256(original.data), keccak256(abi.encode(original.tokenAmounts)), keccak256(abi.encode(original.sourceTokenData)) ) ); } bytes32 internal constant ANY_2_EVM_MESSAGE_HASH = keccak256("Any2EVMMessageHashV1"); bytes32 internal constant EVM_2_ANY_MESSAGE_HASH = keccak256("EVM2AnyMessageHashV1"); /// @dev Used to hash messages for multi-lane family-agnostic OffRamps. /// OnRamp hash(EVM2AnyMessage) != Any2EVMRampMessage.messageId /// OnRamp hash(EVM2AnyMessage) != OffRamp hash(Any2EVMRampMessage) /// @param original OffRamp message to hash /// @param onRamp OnRamp to hash the message with - used to compute the metadataHash /// @return hashedMessage hashed message as a keccak256 function _hash(Any2EVMRampMessage memory original, bytes memory onRamp) internal pure returns (bytes32) { // Fixed-size message fields are included in nested hash to reduce stack pressure. // This hashing scheme is also used by RMN. If changing it, please notify the RMN maintainers. return keccak256( abi.encode( MerkleMultiProof.LEAF_DOMAIN_SEPARATOR, // Implicit metadata hash keccak256( abi.encode( ANY_2_EVM_MESSAGE_HASH, original.header.sourceChainSelector, original.header.destChainSelector, onRamp ) ), keccak256( abi.encode( original.header.messageId, original.sender, original.receiver, original.header.sequenceNumber, original.gasLimit, original.header.nonce ) ), keccak256(original.data), keccak256(abi.encode(original.tokenAmounts)) ) ); } function _hash(EVM2AnyRampMessage memory original, bytes32 metadataHash) internal pure returns (bytes32) { // Fixed-size message fields are included in nested hash to reduce stack pressure. // This hashing scheme is also used by RMN. If changing it, please notify the RMN maintainers. return keccak256( abi.encode( MerkleMultiProof.LEAF_DOMAIN_SEPARATOR, metadataHash, keccak256( abi.encode( original.sender, original.receiver, original.header.sequenceNumber, original.header.nonce, original.feeToken, original.feeTokenAmount ) ), keccak256(original.data), keccak256(abi.encode(original.tokenAmounts)), keccak256(original.extraArgs) ) ); } /// @dev We disallow the first 1024 addresses to avoid calling into a range known for hosting precompiles. Calling /// into precompiles probably won't cause any issues, but to be safe we can disallow this range. It is extremely /// unlikely that anyone would ever be able to generate an address in this range. There is no official range of /// precompiles, but EIP-7587 proposes to reserve the range 0x100 to 0x1ff. Our range is more conservative, even /// though it might not be exhaustive for all chains, which is OK. We also disallow the zero address, which is a /// common practice. uint256 public constant PRECOMPILE_SPACE = 1024; /// @notice This methods provides validation for parsing abi encoded addresses by ensuring the /// address is within the EVM address space. If it isn't it will revert with an InvalidEVMAddress error, which /// we can catch and handle more gracefully than a revert from abi.decode. /// @return The address if it is valid, the function will revert otherwise. function _validateEVMAddress(bytes memory encodedAddress) internal pure returns (address) { if (encodedAddress.length != 32) revert InvalidEVMAddress(encodedAddress); uint256 encodedAddressUint = abi.decode(encodedAddress, (uint256)); if (encodedAddressUint > type(uint160).max || encodedAddressUint < PRECOMPILE_SPACE) { revert InvalidEVMAddress(encodedAddress); } return address(uint160(encodedAddressUint)); } /// @notice Enum listing the possible message execution states within /// the offRamp contract. /// UNTOUCHED never executed /// IN_PROGRESS currently being executed, used a replay protection /// SUCCESS successfully executed. End state /// FAILURE unsuccessfully executed, manual execution is now enabled. /// @dev RMN depends on this enum, if changing, please notify the RMN maintainers. enum MessageExecutionState { UNTOUCHED, IN_PROGRESS, SUCCESS, FAILURE } /// @notice CCIP OCR plugin type, used to separate execution & commit transmissions and configs enum OCRPluginType { Commit, Execution } /// @notice Family-agnostic token amounts used for both OnRamp & OffRamp messages struct RampTokenAmount { // The source pool address, abi encoded. This value is trusted as it was obtained through the onRamp. It can be // relied upon by the destination pool to validate the source pool. bytes sourcePoolAddress; // The address of the destination token, abi encoded in the case of EVM chains // This value is UNTRUSTED as any pool owner can return whatever value they want. bytes destTokenAddress; // Optional pool data to be transferred to the destination chain. Be default this is capped at // CCIP_LOCK_OR_BURN_V1_RET_BYTES bytes. If more data is required, the TokenTransferFeeConfig.destBytesOverhead // has to be set for the specific token. bytes extraData; uint256 amount; // Amount of tokens. } /// @notice Family-agnostic header for OnRamp & OffRamp messages. /// The messageId is not expected to match hash(message), since it may originate from another ramp family struct RampMessageHeader { bytes32 messageId; // Unique identifier for the message, generated with the source chain's encoding scheme (i.e. not necessarily abi.encoded) uint64 sourceChainSelector; // ──╮ the chain selector of the source chain, note: not chainId uint64 destChainSelector; // | the chain selector of the destination chain, note: not chainId uint64 sequenceNumber; // │ sequence number, not unique across lanes uint64 nonce; // ────────────────╯ nonce for this lane for this sender, not unique across senders/lanes } /// @notice Family-agnostic message routed to an OffRamp /// Note: hash(Any2EVMRampMessage) != hash(EVM2AnyRampMessage), hash(Any2EVMRampMessage) != messageId /// due to encoding & parameter differences struct Any2EVMRampMessage { RampMessageHeader header; // Message header bytes sender; // sender address on the source chain bytes data; // arbitrary data payload supplied by the message sender address receiver; // receiver address on the destination chain uint256 gasLimit; // user supplied maximum gas amount available for dest chain execution RampTokenAmount[] tokenAmounts; // array of tokens and amounts to transfer } /// @notice Family-agnostic message emitted from the OnRamp /// Note: hash(Any2EVMRampMessage) != hash(EVM2AnyRampMessage) due to encoding & parameter differences /// messageId = hash(EVM2AnyRampMessage) using the source EVM chain's encoding format struct EVM2AnyRampMessage { RampMessageHeader header; // Message header address sender; // sender address on the source chain bytes data; // arbitrary data payload supplied by the message sender bytes receiver; // receiver address on the destination chain bytes extraArgs; // destination-chain specific extra args, such as the gasLimit for EVM chains address feeToken; // fee token uint256 feeTokenAmount; // fee token amount RampTokenAmount[] tokenAmounts; // array of tokens and amounts to transfer } // bytes4(keccak256("CCIP ChainFamilySelector EVM")) bytes4 public constant CHAIN_FAMILY_SELECTOR_EVM = 0x2812d52c; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /// @notice This library contains various token pool functions to aid constructing the return data. library Pool { // The tag used to signal support for the pool v1 standard // bytes4(keccak256("CCIP_POOL_V1")) bytes4 public constant CCIP_POOL_V1 = 0xaff2afbf; // The number of bytes in the return data for a pool v1 releaseOrMint call. // This should match the size of the ReleaseOrMintOutV1 struct. uint16 public constant CCIP_POOL_V1_RET_BYTES = 32; // The default max number of bytes in the return data for a pool v1 lockOrBurn call. // This data can be used to send information to the destination chain token pool. Can be overwritten // in the TokenTransferFeeConfig.destBytesOverhead if more data is required. uint32 public constant CCIP_LOCK_OR_BURN_V1_RET_BYTES = 32; struct LockOrBurnInV1 { bytes receiver; // The recipient of the tokens on the destination chain, abi encoded uint64 remoteChainSelector; // ─╮ The chain ID of the destination chain address originalSender; // ─────╯ The original sender of the tx on the source chain uint256 amount; // The amount of tokens to lock or burn, denominated in the source token's decimals address localToken; // The address on this chain of the token to lock or burn } struct LockOrBurnOutV1 { // The address of the destination token, abi encoded in the case of EVM chains // This value is UNTRUSTED as any pool owner can return whatever value they want. bytes destTokenAddress; // Optional pool data to be transferred to the destination chain. Be default this is capped at // CCIP_LOCK_OR_BURN_V1_RET_BYTES bytes. If more data is required, the TokenTransferFeeConfig.destBytesOverhead // has to be set for the specific token. bytes destPoolData; } struct ReleaseOrMintInV1 { bytes originalSender; // The original sender of the tx on the source chain uint64 remoteChainSelector; // ─╮ The chain ID of the source chain address receiver; // ───────────╯ The recipient of the tokens on the destination chain. uint256 amount; // The amount of tokens to release or mint, denominated in the source token's decimals address localToken; // The address on this chain of the token to release or mint /// @dev WARNING: sourcePoolAddress should be checked prior to any processing of funds. Make sure it matches the /// expected pool address for the given remoteChainSelector. bytes sourcePoolAddress; // The address of the source pool, abi encoded in the case of EVM chains bytes sourcePoolData; // The data received from the source pool to process the release or mint /// @dev WARNING: offchainTokenData is untrusted data. bytes offchainTokenData; // The offchain data to process the release or mint } struct ReleaseOrMintOutV1 { // The number of tokens released or minted on the destination chain, denominated in the local token's decimals. // This value is expected to be equal to the ReleaseOrMintInV1.amount in the case where the source and destination // chain have the same number of decimals. uint256 destinationAmount; } }
// 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: BUSL-1.1 pragma solidity ^0.8.0; import {OwnerIsCreator} from "../../shared/access/OwnerIsCreator.sol"; import {OCR2Abstract} from "./OCR2Abstract.sol"; /// @notice Onchain verification of reports from the offchain reporting protocol /// @dev For details on its operation, see the offchain reporting protocol design /// doc, which refers to this contract as simply the "contract". /// @dev This contract does ***NOT*** check the supplied signatures on `transmit` /// This is intentional. abstract contract OCR2BaseNoChecks is OwnerIsCreator, OCR2Abstract { error InvalidConfig(InvalidConfigErrorType errorType); error WrongMessageLength(uint256 expected, uint256 actual); error ConfigDigestMismatch(bytes32 expected, bytes32 actual); error ForkedChain(uint256 expected, uint256 actual); error UnauthorizedTransmitter(); error OracleCannotBeZeroAddress(); enum InvalidConfigErrorType { F_MUST_BE_POSITIVE, TOO_MANY_TRANSMITTERS, REPEATED_ORACLE_ADDRESS } // Packing these fields used on the hot path in a ConfigInfo variable reduces the // retrieval of all of them to a minimum number of SLOADs. struct ConfigInfo { bytes32 latestConfigDigest; uint8 f; uint8 n; } // Used for s_oracles[a].role, where a is an address, to track the purpose // of the address, or to indicate that the address is unset. enum Role { // No oracle role has been set for address a Unset, // Unused Signer, // Transmission address for the s_oracles[a].index'th oracle. I.e., if a // report is received by OCR2Aggregator.transmit in which msg.sender is // a, it is attributed to the s_oracles[a].index'th oracle. Transmitter } struct Oracle { uint8 index; // Index of oracle in s_transmitters Role role; // Role of the address which mapped to this struct } // The current config ConfigInfo internal s_configInfo; // incremented each time a new config is posted. This count is incorporated // into the config digest, to prevent replay attacks. uint32 internal s_configCount; // makes it easier for offchain systems to extract config from logs. uint32 internal s_latestConfigBlockNumber; // Transmitter address mapping(address transmitter => Oracle oracle) internal s_oracles; // s_transmitters contains the transmission address of each oracle, // i.e. the address the oracle actually sends transactions to the contract from address[] internal s_transmitters; // The constant-length components of the msg.data sent to transmit. // See the "If we wanted to call sam" example on for example reasoning // https://solidity.readthedocs.io/en/v0.7.2/abi-spec.html uint16 private constant TRANSMIT_MSGDATA_CONSTANT_LENGTH_COMPONENT = 4 // function selector + 32 * 3 // 3 words containing reportContext + 32 // word containing start location of abiencoded report value + 32 // word containing location start of abiencoded rs value + 32 // word containing start location of abiencoded ss value + 32 // rawVs value + 32 // word containing length of report + 32 // word containing length rs + 32; // word containing length of ss uint256 internal immutable i_chainID; // Reverts transaction if config args are invalid modifier checkConfigValid(uint256 numTransmitters, uint256 f) { if (numTransmitters > MAX_NUM_ORACLES) revert InvalidConfig(InvalidConfigErrorType.TOO_MANY_TRANSMITTERS); if (f == 0) revert InvalidConfig(InvalidConfigErrorType.F_MUST_BE_POSITIVE); _; } constructor() { i_chainID = block.chainid; } /// @notice sets offchain reporting protocol configuration incl. participating oracles /// @param signers addresses with which oracles sign the reports /// @param transmitters addresses oracles use to transmit the reports /// @param f number of faulty oracles the system can tolerate /// @param onchainConfig encoded on-chain contract configuration /// @param offchainConfigVersion version number for offchainEncoding schema /// @param offchainConfig encoded off-chain oracle configuration function setOCR2Config( address[] memory signers, address[] memory transmitters, uint8 f, bytes memory onchainConfig, uint64 offchainConfigVersion, bytes memory offchainConfig ) external override checkConfigValid(transmitters.length, f) onlyOwner { _beforeSetConfig(onchainConfig); // Scoped to reduce contract size { uint256 oldTransmitterLength = s_transmitters.length; for (uint256 i = 0; i < oldTransmitterLength; ++i) { delete s_oracles[s_transmitters[i]]; } } uint256 newTransmitterLength = transmitters.length; for (uint256 i = 0; i < newTransmitterLength; ++i) { address transmitter = transmitters[i]; if (s_oracles[transmitter].role != Role.Unset) { revert InvalidConfig(InvalidConfigErrorType.REPEATED_ORACLE_ADDRESS); } if (transmitter == address(0)) revert OracleCannotBeZeroAddress(); s_oracles[transmitter] = Oracle(uint8(i), Role.Transmitter); } s_transmitters = transmitters; s_configInfo.f = f; s_configInfo.n = uint8(newTransmitterLength); s_configInfo.latestConfigDigest = _configDigestFromConfigData( block.chainid, address(this), ++s_configCount, signers, transmitters, f, onchainConfig, offchainConfigVersion, offchainConfig ); uint32 previousConfigBlockNumber = s_latestConfigBlockNumber; s_latestConfigBlockNumber = uint32(block.number); emit ConfigSet( previousConfigBlockNumber, s_configInfo.latestConfigDigest, s_configCount, signers, transmitters, f, onchainConfig, offchainConfigVersion, offchainConfig ); } /// @dev Hook that is run from setOCR2Config() right after validating configuration. /// Empty by default, please provide an implementation in a child contract if you need additional configuration processing function _beforeSetConfig(bytes memory _onchainConfig) internal virtual; /// @return list of addresses permitted to transmit reports to this contract /// @dev The list will match the order used to specify the transmitter during setConfig function getTransmitters() external view returns (address[] memory) { return s_transmitters; } /// @notice transmit is called to post a new report to the contract /// @param report serialized report, which the signatures are signing. /// @param rs ith element is the R components of the ith signature on report. Must have at most MAX_NUM_ORACLES entries /// @param ss ith element is the S components of the ith signature on report. Must have at most MAX_NUM_ORACLES entries function transmit( // NOTE: If these parameters are changed, expectedMsgDataLength and/or // TRANSMIT_MSGDATA_CONSTANT_LENGTH_COMPONENT need to be changed accordingly bytes32[3] calldata reportContext, bytes calldata report, bytes32[] calldata rs, bytes32[] calldata ss, bytes32 // signatures ) external override { _report(report); // reportContext consists of: // reportContext[0]: ConfigDigest // reportContext[1]: 27 byte padding, 4-byte epoch and 1-byte round // reportContext[2]: ExtraHash bytes32 configDigest = reportContext[0]; bytes32 latestConfigDigest = s_configInfo.latestConfigDigest; if (latestConfigDigest != configDigest) revert ConfigDigestMismatch(latestConfigDigest, configDigest); _checkChainForked(); emit Transmitted(configDigest, uint32(uint256(reportContext[1]) >> 8)); // Scoping this reduces stack pressure and gas usage { Oracle memory transmitter = s_oracles[msg.sender]; // Check that sender is authorized to report if (!(transmitter.role == Role.Transmitter && msg.sender == s_transmitters[transmitter.index])) { revert UnauthorizedTransmitter(); } } uint256 expectedDataLength = uint256(TRANSMIT_MSGDATA_CONSTANT_LENGTH_COMPONENT) + report.length // one byte pure entry in _report + rs.length * 32 // 32 bytes per entry in _rs + ss.length * 32; // 32 bytes per entry in _ss) if (msg.data.length != expectedDataLength) revert WrongMessageLength(expectedDataLength, msg.data.length); } function _checkChainForked() internal view { // If the cached chainID at time of deployment doesn't match the current chainID, we reject all signed reports. // This avoids a (rare) scenario where chain A forks into chain A and A', A' still has configDigest // calculated from chain A and so OCR reports will be valid on both forks. if (i_chainID != block.chainid) revert ForkedChain(i_chainID, block.chainid); } /// @notice information about current offchain reporting protocol configuration /// @return configCount ordinal number of current config, out of all configs applied to this contract so far /// @return blockNumber block at which this config was set /// @return configDigest domain-separation tag for current config (see _configDigestFromConfigData) function latestConfigDetails() external view override returns (uint32 configCount, uint32 blockNumber, bytes32 configDigest) { return (s_configCount, s_latestConfigBlockNumber, s_configInfo.latestConfigDigest); } /// @inheritdoc OCR2Abstract function latestConfigDigestAndEpoch() external view virtual override returns (bool scanLogs, bytes32 configDigest, uint32 epoch) { return (true, bytes32(0), uint32(0)); } function _report(bytes calldata report) internal virtual; }
// 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 v5.0.0) (utils/introspection/ERC165Checker.sol) pragma solidity ^0.8.20; import {IERC165} from "./IERC165.sol"; /** * @dev Library used to query support of an interface declared via {IERC165}. * * Note that these functions return the actual result of the query: they do not * `revert` if an interface is not supported. It is up to the caller to decide * what to do in these cases. */ library ERC165Checker { // As per the EIP-165 spec, no interface should ever match 0xffffffff bytes4 private constant INTERFACE_ID_INVALID = 0xffffffff; /** * @dev Returns true if `account` supports the {IERC165} interface. */ function supportsERC165(address account) internal view returns (bool) { // Any contract that implements ERC165 must explicitly indicate support of // InterfaceId_ERC165 and explicitly indicate non-support of InterfaceId_Invalid return supportsERC165InterfaceUnchecked(account, type(IERC165).interfaceId) && !supportsERC165InterfaceUnchecked(account, INTERFACE_ID_INVALID); } /** * @dev Returns true if `account` supports the interface defined by * `interfaceId`. Support for {IERC165} itself is queried automatically. * * See {IERC165-supportsInterface}. */ function supportsInterface(address account, bytes4 interfaceId) internal view returns (bool) { // query support of both ERC165 as per the spec and support of _interfaceId return supportsERC165(account) && supportsERC165InterfaceUnchecked(account, interfaceId); } /** * @dev Returns a boolean array where each value corresponds to the * interfaces passed in and whether they're supported or not. This allows * you to batch check interfaces for a contract where your expectation * is that some interfaces may not be supported. * * See {IERC165-supportsInterface}. */ function getSupportedInterfaces( address account, bytes4[] memory interfaceIds ) internal view returns (bool[] memory) { // an array of booleans corresponding to interfaceIds and whether they're supported or not bool[] memory interfaceIdsSupported = new bool[](interfaceIds.length); // query support of ERC165 itself if (supportsERC165(account)) { // query support of each interface in interfaceIds for (uint256 i = 0; i < interfaceIds.length; i++) { interfaceIdsSupported[i] = supportsERC165InterfaceUnchecked(account, interfaceIds[i]); } } return interfaceIdsSupported; } /** * @dev Returns true if `account` supports all the interfaces defined in * `interfaceIds`. Support for {IERC165} itself is queried automatically. * * Batch-querying can lead to gas savings by skipping repeated checks for * {IERC165} support. * * See {IERC165-supportsInterface}. */ function supportsAllInterfaces(address account, bytes4[] memory interfaceIds) internal view returns (bool) { // query support of ERC165 itself if (!supportsERC165(account)) { return false; } // query support of each interface in interfaceIds for (uint256 i = 0; i < interfaceIds.length; i++) { if (!supportsERC165InterfaceUnchecked(account, interfaceIds[i])) { return false; } } // all interfaces supported return true; } /** * @notice Query if a contract implements an interface, does not check ERC165 support * @param account The address of the contract to query for support of an interface * @param interfaceId The interface identifier, as specified in ERC-165 * @return true if the contract at account indicates support of the interface with * identifier interfaceId, false otherwise * @dev Assumes that account contains a contract that supports ERC165, otherwise * the behavior of this method is undefined. This precondition can be checked * with {supportsERC165}. * * Some precompiled contracts will falsely indicate support for a given interface, so caution * should be exercised when using this function. * * Interface identification is specified in ERC-165. */ function supportsERC165InterfaceUnchecked(address account, bytes4 interfaceId) internal view returns (bool) { // prepare call bytes memory encodedParams = abi.encodeCall(IERC165.supportsInterface, (interfaceId)); // perform static call bool success; uint256 returnSize; uint256 returnValue; assembly { success := staticcall(30000, account, add(encodedParams, 0x20), mload(encodedParams), 0x00, 0x20) returnSize := returndatasize() returnValue := mload(0x00) } return success && returnSize >= 0x20 && returnValue > 0; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/IERC165.sol) pragma solidity ^0.8.20; /** * @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/EnumerableMap.sol) // This file was procedurally generated from scripts/generate/templates/EnumerableMap.js. pragma solidity ^0.8.0; import "./EnumerableSet.sol"; /** * @dev Library for managing an enumerable variant of Solidity's * https://solidity.readthedocs.io/en/latest/types.html#mapping-types[`mapping`] * type. * * Maps have the following properties: * * - Entries are added, removed, and checked for existence in constant time * (O(1)). * - Entries are enumerated in O(n). No guarantees are made on the ordering. * * ``` * contract Example { * // Add the library methods * using EnumerableMap for EnumerableMap.UintToAddressMap; * * // Declare a set state variable * EnumerableMap.UintToAddressMap private myMap; * } * ``` * * The following map types are supported: * * - `uint256 -> address` (`UintToAddressMap`) since v3.0.0 * - `address -> uint256` (`AddressToUintMap`) since v4.6.0 * - `bytes32 -> bytes32` (`Bytes32ToBytes32Map`) since v4.6.0 * - `uint256 -> uint256` (`UintToUintMap`) since v4.7.0 * - `bytes32 -> uint256` (`Bytes32ToUintMap`) since v4.7.0 * * [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 EnumerableMap, you can either remove all elements one by one or create a fresh instance using an * array of EnumerableMap. * ==== */ library EnumerableMap { using EnumerableSet for EnumerableSet.Bytes32Set; // To implement this library for multiple types with as little code // repetition as possible, we write it in terms of a generic Map type with // bytes32 keys and values. // The Map implementation uses private functions, and user-facing // implementations (such as Uint256ToAddressMap) are just wrappers around // the underlying Map. // This means that we can only create new EnumerableMaps for types that fit // in bytes32. struct Bytes32ToBytes32Map { // Storage of keys EnumerableSet.Bytes32Set _keys; mapping(bytes32 => bytes32) _values; } /** * @dev Adds a key-value pair to a map, or updates the value for an existing * key. O(1). * * Returns true if the key was added to the map, that is if it was not * already present. */ function set( Bytes32ToBytes32Map storage map, bytes32 key, bytes32 value ) internal returns (bool) { map._values[key] = value; return map._keys.add(key); } /** * @dev Removes a key-value pair from a map. O(1). * * Returns true if the key was removed from the map, that is if it was present. */ function remove(Bytes32ToBytes32Map storage map, bytes32 key) internal returns (bool) { delete map._values[key]; return map._keys.remove(key); } /** * @dev Returns true if the key is in the map. O(1). */ function contains(Bytes32ToBytes32Map storage map, bytes32 key) internal view returns (bool) { return map._keys.contains(key); } /** * @dev Returns the number of key-value pairs in the map. O(1). */ function length(Bytes32ToBytes32Map storage map) internal view returns (uint256) { return map._keys.length(); } /** * @dev Returns the key-value pair stored at position `index` in the map. O(1). * * Note that there are no guarantees on the ordering of entries inside the * array, and it may change when more entries are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(Bytes32ToBytes32Map storage map, uint256 index) internal view returns (bytes32, bytes32) { bytes32 key = map._keys.at(index); return (key, map._values[key]); } /** * @dev Tries to returns the value associated with `key`. O(1). * Does not revert if `key` is not in the map. */ function tryGet(Bytes32ToBytes32Map storage map, bytes32 key) internal view returns (bool, bytes32) { bytes32 value = map._values[key]; if (value == bytes32(0)) { return (contains(map, key), bytes32(0)); } else { return (true, value); } } /** * @dev Returns the value associated with `key`. O(1). * * Requirements: * * - `key` must be in the map. */ function get(Bytes32ToBytes32Map storage map, bytes32 key) internal view returns (bytes32) { bytes32 value = map._values[key]; require(value != 0 || contains(map, key), "EnumerableMap: nonexistent key"); return value; } /** * @dev Same as {get}, with a custom error message when `key` is not in the map. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryGet}. */ function get( Bytes32ToBytes32Map storage map, bytes32 key, string memory errorMessage ) internal view returns (bytes32) { bytes32 value = map._values[key]; require(value != 0 || contains(map, key), errorMessage); return value; } // UintToUintMap struct UintToUintMap { Bytes32ToBytes32Map _inner; } /** * @dev Adds a key-value pair to a map, or updates the value for an existing * key. O(1). * * Returns true if the key was added to the map, that is if it was not * already present. */ function set( UintToUintMap storage map, uint256 key, uint256 value ) internal returns (bool) { return set(map._inner, bytes32(key), bytes32(value)); } /** * @dev Removes a value from a set. O(1). * * Returns true if the key was removed from the map, that is if it was present. */ function remove(UintToUintMap storage map, uint256 key) internal returns (bool) { return remove(map._inner, bytes32(key)); } /** * @dev Returns true if the key is in the map. O(1). */ function contains(UintToUintMap storage map, uint256 key) internal view returns (bool) { return contains(map._inner, bytes32(key)); } /** * @dev Returns the number of elements in the map. O(1). */ function length(UintToUintMap storage map) internal view returns (uint256) { return length(map._inner); } /** * @dev Returns the element 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(UintToUintMap storage map, uint256 index) internal view returns (uint256, uint256) { (bytes32 key, bytes32 value) = at(map._inner, index); return (uint256(key), uint256(value)); } /** * @dev Tries to returns the value associated with `key`. O(1). * Does not revert if `key` is not in the map. */ function tryGet(UintToUintMap storage map, uint256 key) internal view returns (bool, uint256) { (bool success, bytes32 value) = tryGet(map._inner, bytes32(key)); return (success, uint256(value)); } /** * @dev Returns the value associated with `key`. O(1). * * Requirements: * * - `key` must be in the map. */ function get(UintToUintMap storage map, uint256 key) internal view returns (uint256) { return uint256(get(map._inner, bytes32(key))); } /** * @dev Same as {get}, with a custom error message when `key` is not in the map. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryGet}. */ function get( UintToUintMap storage map, uint256 key, string memory errorMessage ) internal view returns (uint256) { return uint256(get(map._inner, bytes32(key), errorMessage)); } // UintToAddressMap struct UintToAddressMap { Bytes32ToBytes32Map _inner; } /** * @dev Adds a key-value pair to a map, or updates the value for an existing * key. O(1). * * Returns true if the key was added to the map, that is if it was not * already present. */ function set( UintToAddressMap storage map, uint256 key, address value ) internal returns (bool) { return set(map._inner, bytes32(key), bytes32(uint256(uint160(value)))); } /** * @dev Removes a value from a set. O(1). * * Returns true if the key was removed from the map, that is if it was present. */ function remove(UintToAddressMap storage map, uint256 key) internal returns (bool) { return remove(map._inner, bytes32(key)); } /** * @dev Returns true if the key is in the map. O(1). */ function contains(UintToAddressMap storage map, uint256 key) internal view returns (bool) { return contains(map._inner, bytes32(key)); } /** * @dev Returns the number of elements in the map. O(1). */ function length(UintToAddressMap storage map) internal view returns (uint256) { return length(map._inner); } /** * @dev Returns the element 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(UintToAddressMap storage map, uint256 index) internal view returns (uint256, address) { (bytes32 key, bytes32 value) = at(map._inner, index); return (uint256(key), address(uint160(uint256(value)))); } /** * @dev Tries to returns the value associated with `key`. O(1). * Does not revert if `key` is not in the map. */ function tryGet(UintToAddressMap storage map, uint256 key) internal view returns (bool, address) { (bool success, bytes32 value) = tryGet(map._inner, bytes32(key)); return (success, address(uint160(uint256(value)))); } /** * @dev Returns the value associated with `key`. O(1). * * Requirements: * * - `key` must be in the map. */ function get(UintToAddressMap storage map, uint256 key) internal view returns (address) { return address(uint160(uint256(get(map._inner, bytes32(key))))); } /** * @dev Same as {get}, with a custom error message when `key` is not in the map. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryGet}. */ function get( UintToAddressMap storage map, uint256 key, string memory errorMessage ) internal view returns (address) { return address(uint160(uint256(get(map._inner, bytes32(key), errorMessage)))); } // AddressToUintMap struct AddressToUintMap { Bytes32ToBytes32Map _inner; } /** * @dev Adds a key-value pair to a map, or updates the value for an existing * key. O(1). * * Returns true if the key was added to the map, that is if it was not * already present. */ function set( AddressToUintMap storage map, address key, uint256 value ) internal returns (bool) { return set(map._inner, bytes32(uint256(uint160(key))), bytes32(value)); } /** * @dev Removes a value from a set. O(1). * * Returns true if the key was removed from the map, that is if it was present. */ function remove(AddressToUintMap storage map, address key) internal returns (bool) { return remove(map._inner, bytes32(uint256(uint160(key)))); } /** * @dev Returns true if the key is in the map. O(1). */ function contains(AddressToUintMap storage map, address key) internal view returns (bool) { return contains(map._inner, bytes32(uint256(uint160(key)))); } /** * @dev Returns the number of elements in the map. O(1). */ function length(AddressToUintMap storage map) internal view returns (uint256) { return length(map._inner); } /** * @dev Returns the element 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(AddressToUintMap storage map, uint256 index) internal view returns (address, uint256) { (bytes32 key, bytes32 value) = at(map._inner, index); return (address(uint160(uint256(key))), uint256(value)); } /** * @dev Tries to returns the value associated with `key`. O(1). * Does not revert if `key` is not in the map. */ function tryGet(AddressToUintMap storage map, address key) internal view returns (bool, uint256) { (bool success, bytes32 value) = tryGet(map._inner, bytes32(uint256(uint160(key)))); return (success, uint256(value)); } /** * @dev Returns the value associated with `key`. O(1). * * Requirements: * * - `key` must be in the map. */ function get(AddressToUintMap storage map, address key) internal view returns (uint256) { return uint256(get(map._inner, bytes32(uint256(uint160(key))))); } /** * @dev Same as {get}, with a custom error message when `key` is not in the map. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryGet}. */ function get( AddressToUintMap storage map, address key, string memory errorMessage ) internal view returns (uint256) { return uint256(get(map._inner, bytes32(uint256(uint160(key))), errorMessage)); } // Bytes32ToUintMap struct Bytes32ToUintMap { Bytes32ToBytes32Map _inner; } /** * @dev Adds a key-value pair to a map, or updates the value for an existing * key. O(1). * * Returns true if the key was added to the map, that is if it was not * already present. */ function set( Bytes32ToUintMap storage map, bytes32 key, uint256 value ) internal returns (bool) { return set(map._inner, key, bytes32(value)); } /** * @dev Removes a value from a set. O(1). * * Returns true if the key was removed from the map, that is if it was present. */ function remove(Bytes32ToUintMap storage map, bytes32 key) internal returns (bool) { return remove(map._inner, key); } /** * @dev Returns true if the key is in the map. O(1). */ function contains(Bytes32ToUintMap storage map, bytes32 key) internal view returns (bool) { return contains(map._inner, key); } /** * @dev Returns the number of elements in the map. O(1). */ function length(Bytes32ToUintMap storage map) internal view returns (uint256) { return length(map._inner); } /** * @dev Returns the element 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(Bytes32ToUintMap storage map, uint256 index) internal view returns (bytes32, uint256) { (bytes32 key, bytes32 value) = at(map._inner, index); return (key, uint256(value)); } /** * @dev Tries to returns the value associated with `key`. O(1). * Does not revert if `key` is not in the map. */ function tryGet(Bytes32ToUintMap storage map, bytes32 key) internal view returns (bool, uint256) { (bool success, bytes32 value) = tryGet(map._inner, key); return (success, uint256(value)); } /** * @dev Returns the value associated with `key`. O(1). * * Requirements: * * - `key` must be in the map. */ function get(Bytes32ToUintMap storage map, bytes32 key) internal view returns (uint256) { return uint256(get(map._inner, key)); } /** * @dev Same as {get}, with a custom error message when `key` is not in the map. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryGet}. */ function get( Bytes32ToUintMap storage map, bytes32 key, string memory errorMessage ) internal view returns (uint256) { return uint256(get(map._inner, key, errorMessage)); } }
// SPDX-License-Identifier: MIT /* solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore */ pragma solidity ^0.8.0; import {EnumerableSet} from "../../vendor/openzeppelin-solidity/v4.8.3/contracts/utils/structs/EnumerableSet.sol"; /** * @dev Library for managing an enumerable variant of Solidity's * https://solidity.readthedocs.io/en/latest/types.html#mapping-types[`mapping`] * type. * * Maps have the following properties: * * - Entries are added, removed, and checked for existence in constant time * (O(1)). * - Entries are enumerated in O(n). No guarantees are made on the ordering. * * ``` * contract Example { * // Add the library methods * using EnumerableMapBytes32 for EnumerableMapBytes32.Bytes32ToBytesMap; * * // Declare a set state variable * EnumerableMapBytes32.Bytes32ToBytesMap private myMap; * } * ``` * * The following map types are supported: * * - `bytes32 -> bytes` (`Bytes32ToBytes`) * * [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 up an EnumerableMapBytes32, you should remove all elements one by one. * ==== */ library EnumerableMapBytes32 { using EnumerableSet for EnumerableSet.Bytes32Set; error NonexistentKeyError(); struct Bytes32ToBytesMap { EnumerableSet.Bytes32Set _keys; mapping(bytes32 => bytes) _values; } /** * @dev Adds a key-value pair to a map, or updates the value for an existing * key. O(1). * * Returns true if the key was added to the map, that is if it was not * already present. */ // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function set(Bytes32ToBytesMap storage map, bytes32 key, bytes memory value) internal returns (bool) { map._values[key] = value; return map._keys.add(key); } /** * @dev Removes a key-value pair from a map. O(1). * * Returns true if the key was removed from the map, that is if it was present. */ // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function remove(Bytes32ToBytesMap storage map, bytes32 key) internal returns (bool) { delete map._values[key]; return map._keys.remove(key); } /** * @dev Returns true if the key is in the map. O(1). */ // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function contains(Bytes32ToBytesMap storage map, bytes32 key) internal view returns (bool) { return map._keys.contains(key); } /** * @dev Returns the number of key-value pairs in the map. O(1). */ // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function length(Bytes32ToBytesMap storage map) internal view returns (uint256) { return map._keys.length(); } /** * @dev Returns the key-value pair stored at position `index` in the map. O(1). * * Note that there are no guarantees on the ordering of entries inside the * array, and it may change when more entries are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function at(Bytes32ToBytesMap storage map, uint256 index) internal view returns (bytes32, bytes memory) { bytes32 key = map._keys.at(index); return (key, map._values[key]); } /** * @dev Tries to returns the value associated with `key`. O(1). * Does not revert if `key` is not in the map. */ // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function tryGet(Bytes32ToBytesMap storage map, bytes32 key) internal view returns (bool, bytes memory) { bytes memory value = map._values[key]; if (value.length == 0) { return (contains(map, key), bytes("")); } else { return (true, value); } } /** * @dev Returns the value associated with `key`. O(1). * * Requirements: * * - `key` must be in the map. */ // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function get(Bytes32ToBytesMap storage map, bytes32 key) internal view returns (bytes memory) { bytes memory value = map._values[key]; if (value.length == 0 && !contains(map, key)) { revert NonexistentKeyError(); } return value; } }
// 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: BUSL-1.1 pragma solidity ^0.8.0; library USDPriceWith18Decimals { /// @notice Takes a price in USD, with 18 decimals per 1e18 token amount, /// and amount of the smallest token denomination, /// calculates the value in USD with 18 decimals. /// @param tokenPrice The USD price of the token. /// @param tokenAmount Amount of the smallest token denomination. /// @return USD value with 18 decimals. /// @dev this function assumes that no more than 1e59 US dollar worth of token is passed in. /// If more is sent, this function will overflow and revert. /// Since there isn't even close to 1e59 dollars, this is ok for all legit tokens. function _calcUSDValueFromTokenAmount(uint224 tokenPrice, uint256 tokenAmount) internal pure returns (uint256) { /// LINK Example: /// tokenPrice: 8e18 -> $8/LINK, as 1e18 token amount is 1 LINK, worth 8 USD, or 8e18 with 18 decimals /// tokenAmount: 2e18 -> 2 LINK /// result: 8e18 * 2e18 / 1e18 -> 16e18 with 18 decimals = $16 /// USDC Example: /// tokenPrice: 1e30 -> $1/USDC, as 1e18 token amount is 1e12 USDC, worth 1e12 USD, or 1e30 with 18 decimals /// tokenAmount: 5e6 -> 5 USDC /// result: 1e30 * 5e6 / 1e18 -> 5e18 with 18 decimals = $5 return (tokenPrice * tokenAmount) / 1e18; } /// @notice Takes a price in USD, with 18 decimals per 1e18 token amount, /// and USD value with 18 decimals, /// calculates amount of the smallest token denomination. /// @param tokenPrice The USD price of the token. /// @param usdValue USD value with 18 decimals. /// @return Amount of the smallest token denomination. function _calcTokenAmountFromUSDValue(uint224 tokenPrice, uint256 usdValue) internal pure returns (uint256) { /// LINK Example: /// tokenPrice: 8e18 -> $8/LINK, as 1e18 token amount is 1 LINK, worth 8 USD, or 8e18 with 18 decimals /// usdValue: 16e18 -> $16 /// result: 16e18 * 1e18 / 8e18 -> 2e18 = 2 LINK /// USDC Example: /// tokenPrice: 1e30 -> $1/USDC, as 1e18 token amount is 1e12 USDC, worth 1e12 USD, or 1e30 with 18 decimals /// usdValue: 5e18 -> $5 /// result: 5e18 * 1e18 / 1e30 -> 5e6 = 5 USDC return (usdValue * 1e18) / tokenPrice; } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.0; library MerkleMultiProof { /// @notice Leaf domain separator, should be used as the first 32 bytes of a leaf's preimage. bytes32 internal constant LEAF_DOMAIN_SEPARATOR = 0x0000000000000000000000000000000000000000000000000000000000000000; /// @notice Internal domain separator, should be used as the first 32 bytes of an internal node's preiimage. bytes32 internal constant INTERNAL_DOMAIN_SEPARATOR = 0x0000000000000000000000000000000000000000000000000000000000000001; uint256 internal constant MAX_NUM_HASHES = 256; error InvalidProof(); error LeavesCannotBeEmpty(); /// @notice Computes the root based on provided pre-hashed leaf nodes in /// leaves, internal nodes in proofs, and using proofFlagBits' i-th bit to /// determine if an element of proofs or one of the previously computed leafs /// or internal nodes will be used for the i-th hash. /// @param leaves Should be pre-hashed and the first 32 bytes of a leaf's /// preimage should match LEAF_DOMAIN_SEPARATOR. /// @param proofs The hashes to be used instead of a leaf hash when the proofFlagBits /// indicates a proof should be used. /// @param proofFlagBits A single uint256 of which each bit indicates whether a leaf or /// a proof needs to be used in a hash operation. /// @dev the maximum number of hash operations it set to 256. Any input that would require /// more than 256 hashes to get to a root will revert. /// @dev For given input `leaves` = [a,b,c] `proofs` = [D] and `proofFlagBits` = 5 /// totalHashes = 3 + 1 - 1 = 3 /// ** round 1 ** /// proofFlagBits = (5 >> 0) & 1 = true /// hashes[0] = hashPair(a, b) /// (leafPos, hashPos, proofPos) = (2, 0, 0); /// /// ** round 2 ** /// proofFlagBits = (5 >> 1) & 1 = false /// hashes[1] = hashPair(D, c) /// (leafPos, hashPos, proofPos) = (3, 0, 1); /// /// ** round 3 ** /// proofFlagBits = (5 >> 2) & 1 = true /// hashes[2] = hashPair(hashes[0], hashes[1]) /// (leafPos, hashPos, proofPos) = (3, 2, 1); /// /// i = 3 and no longer < totalHashes. The algorithm is done /// return hashes[totalHashes - 1] = hashes[2]; the last hash we computed. // We mark this function as internal to force it to be inlined in contracts // that use it, but semantically it is public. // solhint-disable-next-line chainlink-solidity/prefix-internal-functions-with-underscore function merkleRoot( bytes32[] memory leaves, bytes32[] memory proofs, uint256 proofFlagBits ) internal pure returns (bytes32) { unchecked { uint256 leavesLen = leaves.length; uint256 proofsLen = proofs.length; if (leavesLen == 0) revert LeavesCannotBeEmpty(); if (!(leavesLen <= MAX_NUM_HASHES + 1 && proofsLen <= MAX_NUM_HASHES + 1)) revert InvalidProof(); uint256 totalHashes = leavesLen + proofsLen - 1; if (!(totalHashes <= MAX_NUM_HASHES)) revert InvalidProof(); if (totalHashes == 0) { return leaves[0]; } bytes32[] memory hashes = new bytes32[](totalHashes); (uint256 leafPos, uint256 hashPos, uint256 proofPos) = (0, 0, 0); for (uint256 i = 0; i < totalHashes; ++i) { // Checks if the bit flag signals the use of a supplied proof or a leaf/previous hash. bytes32 a; if (proofFlagBits & (1 << i) == (1 << i)) { // Use a leaf or a previously computed hash. if (leafPos < leavesLen) { a = leaves[leafPos++]; } else { a = hashes[hashPos++]; } } else { // Use a supplied proof. a = proofs[proofPos++]; } // The second part of the hashed pair is never a proof as hashing two proofs would result in a // hash that can already be computed offchain. bytes32 b; if (leafPos < leavesLen) { b = leaves[leafPos++]; } else { b = hashes[hashPos++]; } if (!(hashPos <= i)) revert InvalidProof(); hashes[i] = _hashPair(a, b); } if (!(hashPos == totalHashes - 1 && leafPos == leavesLen && proofPos == proofsLen)) revert InvalidProof(); // Return the last hash. return hashes[totalHashes - 1]; } } /// @notice Hashes two bytes32 objects in their given order, prepended by the /// INTERNAL_DOMAIN_SEPARATOR. function _hashInternalNode(bytes32 left, bytes32 right) private pure returns (bytes32 hash) { return keccak256(abi.encode(INTERNAL_DOMAIN_SEPARATOR, left, right)); } /// @notice Hashes two bytes32 objects. The order is taken into account, /// using the lower value first. function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) { return a < b ? _hashInternalNode(a, b) : _hashInternalNode(b, a); } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.0; import {ITypeAndVersion} from "../../shared/interfaces/ITypeAndVersion.sol"; abstract contract OCR2Abstract is ITypeAndVersion { // Maximum number of oracles the offchain reporting protocol is designed for uint256 internal constant MAX_NUM_ORACLES = 31; /// @notice triggers a new run of the offchain reporting protocol /// @param previousConfigBlockNumber block in which the previous config was set, to simplify historic analysis /// @param configDigest configDigest of this configuration /// @param configCount ordinal number of this config setting among all config settings over the life of this contract /// @param signers ith element is address ith oracle uses to sign a report /// @param transmitters ith element is address ith oracle uses to transmit a report via the transmit method /// @param f maximum number of faulty/dishonest oracles the protocol can tolerate while still working correctly /// @param onchainConfig serialized configuration used by the contract (and possibly oracles) /// @param offchainConfigVersion version of the serialization format used for "offchainConfig" parameter /// @param offchainConfig serialized configuration used by the oracles exclusively and only passed through the contract event ConfigSet( uint32 previousConfigBlockNumber, bytes32 configDigest, uint64 configCount, address[] signers, address[] transmitters, uint8 f, bytes onchainConfig, uint64 offchainConfigVersion, bytes offchainConfig ); /// @notice sets offchain reporting protocol configuration incl. participating oracles /// @param signers addresses with which oracles sign the reports /// @param transmitters addresses oracles use to transmit the reports /// @param f number of faulty oracles the system can tolerate /// @param onchainConfig serialized configuration used by the contract (and possibly oracles) /// @param offchainConfigVersion version number for offchainEncoding schema /// @param offchainConfig serialized configuration used by the oracles exclusively and only passed through the contract function setOCR2Config( address[] memory signers, address[] memory transmitters, uint8 f, bytes memory onchainConfig, uint64 offchainConfigVersion, bytes memory offchainConfig ) external virtual; /// @notice information about current offchain reporting protocol configuration /// @return configCount ordinal number of current config, out of all configs applied to this contract so far /// @return blockNumber block at which this config was set /// @return configDigest domain-separation tag for current config (see _configDigestFromConfigData) function latestConfigDetails() external view virtual returns (uint32 configCount, uint32 blockNumber, bytes32 configDigest); function _configDigestFromConfigData( uint256 chainId, address contractAddress, uint64 configCount, address[] memory signers, address[] memory transmitters, uint8 f, bytes memory onchainConfig, uint64 offchainConfigVersion, bytes memory offchainConfig ) internal pure returns (bytes32) { uint256 h = uint256( keccak256( abi.encode( chainId, contractAddress, configCount, signers, transmitters, f, onchainConfig, offchainConfigVersion, offchainConfig ) ) ); uint256 prefixMask = type(uint256).max << (256 - 16); // 0xFFFF00..00 uint256 prefix = 0x0001 << (256 - 16); // 0x000100..00 return bytes32((prefix & prefixMask) | (h & ~prefixMask)); } /// @notice optionally emitted to indicate the latest configDigest and epoch for /// which a report was successfully transmitted. Alternatively, the contract may /// use latestConfigDigestAndEpoch with scanLogs set to false. event Transmitted(bytes32 configDigest, uint32 epoch); /// @notice optionally returns the latest configDigest and epoch for which a /// report was successfully transmitted. Alternatively, the contract may return /// scanLogs set to true and use Transmitted events to provide this information /// to offchain watchers. /// @return scanLogs indicates whether to rely on the configDigest and epoch /// returned or whether to scan logs for the Transmitted event instead. /// @return configDigest /// @return epoch function latestConfigDigestAndEpoch() external view virtual returns (bool scanLogs, bytes32 configDigest, uint32 epoch); /// @notice transmit is called to post a new report to the contract /// @param report serialized report, which the signatures are signing. /// @param rs ith element is the R components of the ith signature on report. Must have at most MAX_NUM_ORACLES entries /// @param ss ith element is the S components of the ith signature on report. Must have at most MAX_NUM_ORACLES entries /// @param rawVs ith element is the the V component of the ith signature function transmit( // NOTE: If these parameters are changed, expectedMsgDataLength and/or // TRANSMIT_MSGDATA_CONSTANT_LENGTH_COMPONENT need to be changed accordingly bytes32[3] calldata reportContext, bytes calldata report, bytes32[] calldata rs, bytes32[] calldata ss, bytes32 rawVs // signatures ) external virtual; }
// 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 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 gas-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 gas-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 gas-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 gas-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; }
{ "remappings": [ "forge-std/=src/v0.8/vendor/forge-std/src/", "@openzeppelin/=node_modules/@openzeppelin/", "@arbitrum/=node_modules/@arbitrum/", "hardhat/=node_modules/hardhat/", "@eth-optimism/=node_modules/@eth-optimism/", "@scroll-tech/=node_modules/@scroll-tech/", "@chainlink/=node_modules/@chainlink/" ], "optimizer": { "enabled": true, "runs": 18000 }, "metadata": { "useLiteralContent": false, "bytecodeHash": "none", "appendCBOR": true }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "evmVersion": "paris", "viaIR": false, "libraries": {} }
Contract Security Audit
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EVM2EVMOffRamp.DynamicConfig","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint64","name":"sequenceNumber","type":"uint64"}],"name":"getExecutionState","outputs":[{"internalType":"enum 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EVM2EVMOffRamp.StaticConfig","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getTokenLimitAdmin","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getTransmitters","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"latestConfigDetails","outputs":[{"internalType":"uint32","name":"configCount","type":"uint32"},{"internalType":"uint32","name":"blockNumber","type":"uint32"},{"internalType":"bytes32","name":"configDigest","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"latestConfigDigestAndEpoch","outputs":[{"internalType":"bool","name":"scanLogs","type":"bool"},{"internalType":"bytes32","name":"configDigest","type":"bytes32"},{"internalType":"uint32","name":"epoch","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"components":[{"internalType":"uint64","name":"sourceChainSelector","type":"uint64"},{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint64","name":"sequenceNumber","type":"uint64"},{"internalType":"uint256","name":"gasLimit","type":"uint256"},{"internalType":"bool","name":"strict","type":"bool"},{"internalType":"uint64","name":"nonce","type":"uint64"},{"internalType":"address","name":"feeToken","type":"address"},{"internalType":"uint256","name":"feeTokenAmount","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"},{"components":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"internalType":"struct Client.EVMTokenAmount[]","name":"tokenAmounts","type":"tuple[]"},{"internalType":"bytes[]","name":"sourceTokenData","type":"bytes[]"},{"internalType":"bytes32","name":"messageId","type":"bytes32"}],"internalType":"struct Internal.EVM2EVMMessage[]","name":"messages","type":"tuple[]"},{"internalType":"bytes[][]","name":"offchainTokenData","type":"bytes[][]"},{"internalType":"bytes32[]","name":"proofs","type":"bytes32[]"},{"internalType":"uint256","name":"proofFlagBits","type":"uint256"}],"internalType":"struct Internal.ExecutionReport","name":"report","type":"tuple"},{"components":[{"internalType":"uint256","name":"receiverExecutionGasLimit","type":"uint256"},{"internalType":"uint32[]","name":"tokenGasOverrides","type":"uint32[]"}],"internalType":"struct EVM2EVMOffRamp.GasLimitOverride[]","name":"gasLimitOverrides","type":"tuple[]"}],"name":"manuallyExecute","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newAdmin","type":"address"}],"name":"setAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"signers","type":"address[]"},{"internalType":"address[]","name":"transmitters","type":"address[]"},{"internalType":"uint8","name":"f","type":"uint8"},{"internalType":"bytes","name":"onchainConfig","type":"bytes"},{"internalType":"uint64","name":"offchainConfigVersion","type":"uint64"},{"internalType":"bytes","name":"offchainConfig","type":"bytes"}],"name":"setOCR2Config","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"bool","name":"isEnabled","type":"bool"},{"internalType":"uint128","name":"capacity","type":"uint128"},{"internalType":"uint128","name":"rate","type":"uint128"}],"internalType":"struct RateLimiter.Config","name":"config","type":"tuple"}],"name":"setRateLimiterConfig","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32[3]","name":"reportContext","type":"bytes32[3]"},{"internalType":"bytes","name":"report","type":"bytes"},{"internalType":"bytes32[]","name":"rs","type":"bytes32[]"},{"internalType":"bytes32[]","name":"ss","type":"bytes32[]"},{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"transmit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"typeAndVersion","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"sourceToken","type":"address"},{"internalType":"address","name":"destToken","type":"address"}],"internalType":"struct EVM2EVMOffRamp.RateLimitToken[]","name":"removes","type":"tuple[]"},{"components":[{"internalType":"address","name":"sourceToken","type":"address"},{"internalType":"address","name":"destToken","type":"address"}],"internalType":"struct EVM2EVMOffRamp.RateLimitToken[]","name":"adds","type":"tuple[]"}],"name":"updateRateLimitTokens","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Deployed Bytecode
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Multichain Portfolio | 30 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
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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.