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// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.24;

import {IEVM2AnyOnRamp} from "./interfaces/IEVM2AnyOnRamp.sol";
import {INonceManager} from "./interfaces/INonceManager.sol";
import {ITypeAndVersion} from "@chainlink/shared/interfaces/ITypeAndVersion.sol";

import {AuthorizedCallers} from "@chainlink/shared/access/AuthorizedCallers.sol";

/// @title NonceManager
/// @notice NonceManager contract that manages sender nonces for the on/off ramps.
contract NonceManager is INonceManager, AuthorizedCallers, ITypeAndVersion {
  error PreviousRampAlreadySet();

  event PreviousRampsUpdated(uint64 indexed remoteChainSelector, PreviousRamps prevRamp);
  event SkippedIncorrectNonce(uint64 sourceChainSelector, uint64 nonce, bytes sender);

  /// @dev Struct that contains the previous on/off ramp addresses.
  struct PreviousRamps {
    address prevOnRamp; // Previous onRamp.
    address prevOffRamp; // Previous offRamp.
  }

  /// @dev Struct with the chain selector and the previous on/off ramps, same as PreviousRamps but with the chain
  /// selector so that an array of these can be passed to the applyPreviousRampsUpdates function.
  struct PreviousRampsArgs {
    uint64 remoteChainSelector; // ──╮ Chain selector.
    bool overrideExistingRamps; // ──╯ Whether to override existing ramps.
    PreviousRamps prevRamps; // Previous on/off ramps.
  }

  string public constant override typeAndVersion = "NonceManager 1.6.0";

  /// @dev The previous on/off ramps per chain selector.
  mapping(uint64 chainSelector => PreviousRamps previousRamps) private s_previousRamps;
  /// @dev The current outbound nonce per sender used on the onRamp.
  mapping(uint64 destChainSelector => mapping(address sender => uint64 outboundNonce)) private s_outboundNonces;
  /// @dev The current inbound nonce per sender used on the offRamp.
  /// Eventually in sync with the outbound nonce in the remote source chain NonceManager, used to enforce that messages
  /// are executed in the same order they are sent (assuming they are DON).
  mapping(uint64 sourceChainSelector => mapping(bytes sender => uint64 inboundNonce)) private s_inboundNonces;

  constructor(
    address[] memory authorizedCallers
  ) AuthorizedCallers(authorizedCallers) {}

  /// @inheritdoc INonceManager
  function getIncrementedOutboundNonce(
    uint64 destChainSelector,
    address sender
  ) external onlyAuthorizedCallers returns (uint64) {
    uint64 outboundNonce = _getOutboundNonce(destChainSelector, sender) + 1;
    s_outboundNonces[destChainSelector][sender] = outboundNonce;

    return outboundNonce;
  }

  /// @notice Returns the outbound nonce for a given sender on a given destination chain.
  /// @param destChainSelector The destination chain selector.
  /// @param sender The sender address.
  /// @return outboundNonce The outbound nonce.
  function getOutboundNonce(uint64 destChainSelector, address sender) external view returns (uint64) {
    return _getOutboundNonce(destChainSelector, sender);
  }

  function _getOutboundNonce(uint64 destChainSelector, address sender) private view returns (uint64) {
    uint64 outboundNonce = s_outboundNonces[destChainSelector][sender];

    // When introducing the NonceManager with existing lanes, we still want to have sequential nonces.
    // Referencing the old onRamp preserves sequencing between updates.
    if (outboundNonce == 0) {
      address prevOnRamp = s_previousRamps[destChainSelector].prevOnRamp;
      if (prevOnRamp != address(0)) {
        // This gets the current nonce for a sender, not the already incremented nonce like getIncrementedOutboundNonce
        // would return.
        return IEVM2AnyOnRamp(prevOnRamp).getSenderNonce(sender);
      }
    }

    return outboundNonce;
  }

  /// @inheritdoc INonceManager
  function incrementInboundNonce(
    uint64 sourceChainSelector,
    uint64 expectedNonce,
    bytes calldata sender
  ) external onlyAuthorizedCallers returns (bool) {
    uint64 inboundNonce = _getInboundNonce(sourceChainSelector, sender) + 1;

    if (inboundNonce != expectedNonce) {
      // If the nonce is not the expected one, this means that there are still messages in flight so we skip
      // the nonce increment.
      emit SkippedIncorrectNonce(sourceChainSelector, expectedNonce, sender);
      return false;
    }

    s_inboundNonces[sourceChainSelector][sender] = inboundNonce;

    return true;
  }

  /// @notice Returns the inbound nonce for a given sender on a given source chain.
  /// @param sourceChainSelector The source chain selector.
  /// @param sender The encoded sender address.
  /// @return inboundNonce The inbound nonce.
  function getInboundNonce(uint64 sourceChainSelector, bytes calldata sender) external view returns (uint64) {
    return _getInboundNonce(sourceChainSelector, sender);
  }

  function _getInboundNonce(uint64 sourceChainSelector, bytes calldata sender) private view returns (uint64) {
    uint64 inboundNonce = s_inboundNonces[sourceChainSelector][sender];

    // When introducing the NonceManager with existing lanes, 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
    // in the current offRamp if it would not be the next according to the old offRamp. This preserves sequencing
    // between updates.
    if (inboundNonce == 0) {
      address prevOffRamp = s_previousRamps[sourceChainSelector].prevOffRamp;
      if (prevOffRamp != address(0)) {
        // We only expect EVM previous offRamps here so we can safely decode the sender.
        return IEVM2AnyOnRamp(prevOffRamp).getSenderNonce(abi.decode(sender, (address)));
      }
    }

    return inboundNonce;
  }

  /// @notice Updates the previous ramps addresses.
  /// @param previousRampsArgs The previous on/off ramps addresses.
  function applyPreviousRampsUpdates(
    PreviousRampsArgs[] calldata previousRampsArgs
  ) external onlyOwner {
    for (uint256 i = 0; i < previousRampsArgs.length; ++i) {
      PreviousRampsArgs calldata previousRampsArg = previousRampsArgs[i];

      PreviousRamps storage prevRamps = s_previousRamps[previousRampsArg.remoteChainSelector];

      // If the previous ramps are already set then they should not be updated.
      // In versions prior to the introduction of the NonceManager contract, nonces were tracked in the on/off ramps.
      // This config does a 1-time migration to move the nonce from on/off ramps into NonceManager.
      if (prevRamps.prevOnRamp != address(0) || prevRamps.prevOffRamp != address(0)) {
        // We do allow explicit overrides as an escape hatch in the case of a misconfiguration.
        if (!previousRampsArg.overrideExistingRamps) {
          revert PreviousRampAlreadySet();
        }
      }

      prevRamps.prevOnRamp = previousRampsArg.prevRamps.prevOnRamp;
      prevRamps.prevOffRamp = previousRampsArg.prevRamps.prevOffRamp;

      emit PreviousRampsUpdated(previousRampsArg.remoteChainSelector, previousRampsArg.prevRamps);
    }
  }

  /// @notice Gets the previous onRamp address for the given chain selector.
  /// @param chainSelector The chain selector.
  /// @return previousRamps The previous on/offRamp addresses.
  function getPreviousRamps(
    uint64 chainSelector
  ) external view returns (PreviousRamps memory) {
    return s_previousRamps[chainSelector];
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {IEVM2AnyOnRampClient} from "./IEVM2AnyOnRampClient.sol";

interface IEVM2AnyOnRamp is IEVM2AnyOnRampClient {
  /// @notice Gets the next sequence number to be used in the onRamp.
  /// @return the next sequence number to be used.
  function getExpectedNextSequenceNumber() external view returns (uint64);

  /// @notice Get the current nonce for a given sender.
  /// @param sender The sender to get the nonce for.
  /// @return nonce The current nonce for the sender.
  function getSenderNonce(
    address sender
  ) external view returns (uint64 nonce);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {IPoolV1} from "./IPool.sol";

import {Client} from "../libraries/Client.sol";

import {IERC20} from "@chainlink/vendor/openzeppelin-solidity/v4.8.3/contracts/token/ERC20/IERC20.sol";

interface IEVM2AnyOnRampClient {
  /// @notice Get the fee for a given ccip message.
  /// @param destChainSelector The destination chain selector.
  /// @param message The message to calculate the cost for.
  /// @return fee The calculated fee.
  function getFee(uint64 destChainSelector, Client.EVM2AnyMessage calldata message) external view returns (uint256 fee);

  /// @notice Get the pool for a specific token.
  /// @param destChainSelector The destination chain selector.
  /// @param sourceToken The source chain token to get the pool for.
  /// @return pool Token pool.
  function getPoolBySourceToken(uint64 destChainSelector, IERC20 sourceToken) external view returns (IPoolV1);

  /// @notice Gets a list of all supported source chain tokens.
  /// @param destChainSelector The destination chain selector.
  /// @return tokens The addresses of all tokens that this onRamp supports the given destination chain.
  function getSupportedTokens(
    uint64 destChainSelector
  ) external view returns (address[] memory tokens);

  /// @notice Send a message to the remote chain.
  /// @dev only callable by the Router.
  /// @dev approve() must have already been called on the token using the this ramp address as the spender.
  /// @dev if the contract is paused, this function will revert.
  /// @param destChainSelector The destination chain selector.
  /// @param message Message struct to send.
  /// @param feeTokenAmount Amount of fee tokens for payment.
  /// @param originalSender The original initiator of the CCIP request.
  /// @return messageId The message id.
  function forwardFromRouter(
    uint64 destChainSelector,
    Client.EVM2AnyMessage memory message,
    uint256 feeTokenAmount,
    address originalSender
  ) external returns (bytes32);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

/// @notice Contract interface that allows managing sender nonces.
interface INonceManager {
  /// @notice Increments the outbound nonce for a given sender on a given destination chain.
  /// @param destChainSelector The destination chain selector.
  /// @param sender The sender address.
  /// @return incrementedOutboundNonce The new outbound nonce.
  function getIncrementedOutboundNonce(uint64 destChainSelector, address sender) external returns (uint64);

  /// @notice Increments the inbound nonce for a given sender on a given source chain.
  /// @notice The increment is only applied if the resulting nonce matches the expectedNonce.
  /// @param sourceChainSelector The destination chain selector.
  /// @param expectedNonce The expected inbound nonce.
  /// @param sender The encoded sender address.
  /// @return incremented True if the nonce was incremented, false otherwise.
  function incrementInboundNonce(
    uint64 sourceChainSelector,
    uint64 expectedNonce,
    bytes calldata sender
  ) external returns (bool);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {Pool} from "../libraries/Pool.sol";

import {IERC165} from "@chainlink/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 e.g. 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;

// 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).
  }

  // Tag to indicate only a gas limit. Only usable for EVM as destination chain.
  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);
  }

  // Tag to indicate a gas limit (or dest chain equivalent processing units) and Out Of Order Execution. This tag is
  // available for multiple chain families. If there is no chain family specific tag, this is the default available
  // for a chain.
  // Note: not available for Solana VM based chains.
  bytes4 public constant GENERIC_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.
  /// @dev Fully compatible with the previously existing EVMExtraArgsV2.
  struct GenericExtraArgsV2 {
    uint256 gasLimit;
    bool allowOutOfOrderExecution;
  }

  // Extra args tag for chains that use the Solana VM.
  bytes4 public constant SVM_EXTRA_ARGS_V1_TAG = 0x1f3b3aba;

  struct SVMExtraArgsV1 {
    uint32 computeUnits;
    uint64 accountIsWritableBitmap;
    bool allowOutOfOrderExecution;
    bytes32 tokenReceiver;
    bytes32[] accounts;
  }

  /// @dev The maximum number of accounts that can be passed in SVMExtraArgs.
  uint256 public constant SVM_EXTRA_ARGS_MAX_ACCOUNTS = 64;

  function _argsToBytes(
    GenericExtraArgsV2 memory extraArgs
  ) internal pure returns (bytes memory bts) {
    return abi.encodeWithSelector(GENERIC_EXTRA_ARGS_V2_TAG, extraArgs);
  }

  function _svmArgsToBytes(
    SVMExtraArgsV1 memory extraArgs
  ) internal pure returns (bytes memory bts) {
    return abi.encodeWithSelector(SVM_EXTRA_ARGS_V1_TAG, extraArgs);
  }
}

// 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 ^0.8.4;

import {Ownable2StepMsgSender} from "./Ownable2StepMsgSender.sol";
import {EnumerableSet} from "../../vendor/openzeppelin-solidity/v4.8.3/contracts/utils/structs/EnumerableSet.sol";

/// @title The AuthorizedCallers contract
/// @notice A contract that manages multiple authorized callers. Enables restricting access to certain functions to a set of addresses.
contract AuthorizedCallers is Ownable2StepMsgSender {
  using EnumerableSet for EnumerableSet.AddressSet;

  event AuthorizedCallerAdded(address caller);
  event AuthorizedCallerRemoved(address caller);

  error UnauthorizedCaller(address caller);
  error ZeroAddressNotAllowed();

  /// @notice Update args for changing the authorized callers
  struct AuthorizedCallerArgs {
    address[] addedCallers;
    address[] removedCallers;
  }

  /// @dev Set of authorized callers
  EnumerableSet.AddressSet internal s_authorizedCallers;

  /// @param authorizedCallers the authorized callers to set
  constructor(address[] memory authorizedCallers) {
    _applyAuthorizedCallerUpdates(
      AuthorizedCallerArgs({addedCallers: authorizedCallers, removedCallers: new address[](0)})
    );
  }

  /// @return authorizedCallers Returns all authorized callers
  function getAllAuthorizedCallers() external view returns (address[] memory) {
    return s_authorizedCallers.values();
  }

  /// @notice Updates the list of authorized callers
  /// @param authorizedCallerArgs Callers to add and remove. Removals are performed first.
  function applyAuthorizedCallerUpdates(AuthorizedCallerArgs memory authorizedCallerArgs) external onlyOwner {
    _applyAuthorizedCallerUpdates(authorizedCallerArgs);
  }

  /// @notice Updates the list of authorized callers
  /// @param authorizedCallerArgs Callers to add and remove. Removals are performed first.
  function _applyAuthorizedCallerUpdates(AuthorizedCallerArgs memory authorizedCallerArgs) internal {
    address[] memory removedCallers = authorizedCallerArgs.removedCallers;
    for (uint256 i = 0; i < removedCallers.length; ++i) {
      address caller = removedCallers[i];

      if (s_authorizedCallers.remove(caller)) {
        emit AuthorizedCallerRemoved(caller);
      }
    }

    address[] memory addedCallers = authorizedCallerArgs.addedCallers;
    for (uint256 i = 0; i < addedCallers.length; ++i) {
      address caller = addedCallers[i];

      if (caller == address(0)) {
        revert ZeroAddressNotAllowed();
      }

      s_authorizedCallers.add(caller);
      emit AuthorizedCallerAdded(caller);
    }
  }

  /// @notice Checks the sender and reverts if it is anyone other than a listed authorized caller.
  function _validateCaller() internal view {
    if (!s_authorizedCallers.contains(msg.sender)) {
      revert UnauthorizedCaller(msg.sender);
    }
  }

  /// @notice Checks the sender and reverts if it is anyone other than a listed authorized caller.
  modifier onlyAuthorizedCallers() {
    _validateCaller();
    _;
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

import {IOwnable} from "../interfaces/IOwnable.sol";

/// @notice A minimal contract that implements 2-step ownership transfer and nothing more. It's made to be minimal
/// to reduce the impact of the bytecode size on any contract that inherits from it.
contract Ownable2Step is IOwnable {
  /// @notice The pending owner is the address to which ownership may be transferred.
  address private s_pendingOwner;
  /// @notice The owner is the current owner of the contract.
  /// @dev The owner is the second storage variable so any implementing contract could pack other state with it
  /// instead of the much less used s_pendingOwner.
  address private s_owner;

  error OwnerCannotBeZero();
  error MustBeProposedOwner();
  error CannotTransferToSelf();
  error OnlyCallableByOwner();

  event OwnershipTransferRequested(address indexed from, address indexed to);
  event OwnershipTransferred(address indexed from, address indexed to);

  constructor(address newOwner, address pendingOwner) {
    if (newOwner == address(0)) {
      revert OwnerCannotBeZero();
    }

    s_owner = newOwner;
    if (pendingOwner != address(0)) {
      _transferOwnership(pendingOwner);
    }
  }

  /// @notice Get the current owner
  function owner() public view override returns (address) {
    return s_owner;
  }

  /// @notice Allows an owner to begin transferring ownership to a new address. The new owner needs to call
  /// `acceptOwnership` to accept the transfer before any permissions are changed.
  /// @param to The address to which ownership will be transferred.
  function transferOwnership(address to) public override onlyOwner {
    _transferOwnership(to);
  }

  /// @notice validate, transfer ownership, and emit relevant events
  /// @param to The address to which ownership will be transferred.
  function _transferOwnership(address to) private {
    if (to == msg.sender) {
      revert CannotTransferToSelf();
    }

    s_pendingOwner = to;

    emit OwnershipTransferRequested(s_owner, to);
  }

  /// @notice Allows an ownership transfer to be completed by the recipient.
  function acceptOwnership() external override {
    if (msg.sender != s_pendingOwner) {
      revert MustBeProposedOwner();
    }

    address oldOwner = s_owner;
    s_owner = msg.sender;
    s_pendingOwner = address(0);

    emit OwnershipTransferred(oldOwner, msg.sender);
  }

  /// @notice validate access
  function _validateOwnership() internal view {
    if (msg.sender != s_owner) {
      revert OnlyCallableByOwner();
    }
  }

  /// @notice Reverts if called by anyone other than the contract owner.
  modifier onlyOwner() {
    _validateOwnership();
    _;
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

import {Ownable2Step} from "./Ownable2Step.sol";

/// @notice Sets the msg.sender to be the owner of the contract and does not set a pending owner.
contract Ownable2StepMsgSender is Ownable2Step {
  constructor() Ownable2Step(msg.sender, address(0)) {}
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IOwnable {
  function owner() external returns (address);

  function transferOwnership(address recipient) external;

  function acceptOwnership() external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface ITypeAndVersion {
  function typeAndVersion() external pure returns (string memory);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
  /**
   * @dev Emitted when `value` tokens are moved from one account (`from`) to
   * another (`to`).
   *
   * Note that `value` may be zero.
   */
  event Transfer(address indexed from, address indexed to, uint256 value);

  /**
   * @dev Emitted when the allowance of a `spender` for an `owner` is set by
   * a call to {approve}. `value` is the new allowance.
   */
  event Approval(address indexed owner, address indexed spender, uint256 value);

  /**
   * @dev Returns the amount of tokens in existence.
   */
  function totalSupply() external view returns (uint256);

  /**
   * @dev Returns the amount of tokens owned by `account`.
   */
  function balanceOf(address account) external view returns (uint256);

  /**
   * @dev Moves `amount` tokens from the caller's account to `to`.
   *
   * Returns a boolean value indicating whether the operation succeeded.
   *
   * Emits a {Transfer} event.
   */
  function transfer(address to, uint256 amount) external returns (bool);

  /**
   * @dev Returns the remaining number of tokens that `spender` will be
   * allowed to spend on behalf of `owner` through {transferFrom}. This is
   * zero by default.
   *
   * This value changes when {approve} or {transferFrom} are called.
   */
  function allowance(address owner, address spender) external view returns (uint256);

  /**
   * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
   *
   * Returns a boolean value indicating whether the operation succeeded.
   *
   * IMPORTANT: Beware that changing an allowance with this method brings the risk
   * that someone may use both the old and the new allowance by unfortunate
   * transaction ordering. One possible solution to mitigate this race
   * condition is to first reduce the spender's allowance to 0 and set the
   * desired value afterwards:
   * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
   *
   * Emits an {Approval} event.
   */
  function approve(address spender, uint256 amount) external returns (bool);

  /**
   * @dev Moves `amount` tokens from `from` to `to` using the
   * allowance mechanism. `amount` is then deducted from the caller's
   * allowance.
   *
   * Returns a boolean value indicating whether the operation succeeded.
   *
   * Emits a {Transfer} event.
   */
  function transferFrom(address from, address to, uint256 amount) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/structs/EnumerableSet.sol)
// This file was procedurally generated from scripts/generate/templates/EnumerableSet.js.

pragma solidity ^0.8.0;

/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
 * and `uint256` (`UintSet`) are supported.
 *
 * [WARNING]
 * ====
 * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure
 * unusable.
 * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info.
 *
 * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an
 * array of EnumerableSet.
 * ====
 */
library EnumerableSet {
  // To implement this library for multiple types with as little code
  // repetition as possible, we write it in terms of a generic Set type with
  // bytes32 values.
  // The Set implementation uses private functions, and user-facing
  // implementations (such as AddressSet) are just wrappers around the
  // underlying Set.
  // This means that we can only create new EnumerableSets for types that fit
  // in bytes32.

  struct Set {
    // Storage of set values
    bytes32[] _values;
    // Position of the value in the `values` array, plus 1 because index 0
    // means a value is not in the set.
    mapping(bytes32 => uint256) _indexes;
  }

  /**
   * @dev Add a value to a set. O(1).
   *
   * Returns true if the value was added to the set, that is if it was not
   * already present.
   */
  function _add(Set storage set, bytes32 value) private returns (bool) {
    if (!_contains(set, value)) {
      set._values.push(value);
      // The value is stored at length-1, but we add 1 to all indexes
      // and use 0 as a sentinel value
      set._indexes[value] = set._values.length;
      return true;
    } else {
      return false;
    }
  }

  /**
   * @dev Removes a value from a set. O(1).
   *
   * Returns true if the value was removed from the set, that is if it was
   * present.
   */
  function _remove(Set storage set, bytes32 value) private returns (bool) {
    // We read and store the value's index to prevent multiple reads from the same storage slot
    uint256 valueIndex = set._indexes[value];

    if (valueIndex != 0) {
      // Equivalent to contains(set, value)
      // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
      // the array, and then remove the last element (sometimes called as 'swap and pop').
      // This modifies the order of the array, as noted in {at}.

      uint256 toDeleteIndex = valueIndex - 1;
      uint256 lastIndex = set._values.length - 1;

      if (lastIndex != toDeleteIndex) {
        bytes32 lastValue = set._values[lastIndex];

        // Move the last value to the index where the value to delete is
        set._values[toDeleteIndex] = lastValue;
        // Update the index for the moved value
        set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex
      }

      // Delete the slot where the moved value was stored
      set._values.pop();

      // Delete the index for the deleted slot
      delete set._indexes[value];

      return true;
    } else {
      return false;
    }
  }

  /**
   * @dev Returns true if the value is in the set. O(1).
   */
  function _contains(Set storage set, bytes32 value) private view returns (bool) {
    return set._indexes[value] != 0;
  }

  /**
   * @dev Returns the number of values on the set. O(1).
   */
  function _length(Set storage set) private view returns (uint256) {
    return set._values.length;
  }

  /**
   * @dev Returns the value stored at position `index` in the set. O(1).
   *
   * Note that there are no guarantees on the ordering of values inside the
   * array, and it may change when more values are added or removed.
   *
   * Requirements:
   *
   * - `index` must be strictly less than {length}.
   */
  function _at(Set storage set, uint256 index) private view returns (bytes32) {
    return set._values[index];
  }

  /**
   * @dev Return the entire set in an array
   *
   * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
   * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
   * this function has an unbounded cost, and using it as part of a state-changing function may render the function
   * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
   */
  function _values(Set storage set) private view returns (bytes32[] memory) {
    return set._values;
  }

  // Bytes32Set

  struct Bytes32Set {
    Set _inner;
  }

  /**
   * @dev Add a value to a set. O(1).
   *
   * Returns true if the value was added to the set, that is if it was not
   * already present.
   */
  function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
    return _add(set._inner, value);
  }

  /**
   * @dev Removes a value from a set. O(1).
   *
   * Returns true if the value was removed from the set, that is if it was
   * present.
   */
  function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
    return _remove(set._inner, value);
  }

  /**
   * @dev Returns true if the value is in the set. O(1).
   */
  function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
    return _contains(set._inner, value);
  }

  /**
   * @dev Returns the number of values in the set. O(1).
   */
  function length(Bytes32Set storage set) internal view returns (uint256) {
    return _length(set._inner);
  }

  /**
   * @dev Returns the value stored at position `index` in the set. O(1).
   *
   * Note that there are no guarantees on the ordering of values inside the
   * array, and it may change when more values are added or removed.
   *
   * Requirements:
   *
   * - `index` must be strictly less than {length}.
   */
  function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
    return _at(set._inner, index);
  }

  /**
   * @dev Return the entire set in an array
   *
   * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
   * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
   * this function has an unbounded cost, and using it as part of a state-changing function may render the function
   * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
   */
  function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
    bytes32[] memory store = _values(set._inner);
    bytes32[] memory result;

    /// @solidity memory-safe-assembly
    assembly {
      result := store
    }

    return result;
  }

  // AddressSet

  struct AddressSet {
    Set _inner;
  }

  /**
   * @dev Add a value to a set. O(1).
   *
   * Returns true if the value was added to the set, that is if it was not
   * already present.
   */
  function add(AddressSet storage set, address value) internal returns (bool) {
    return _add(set._inner, bytes32(uint256(uint160(value))));
  }

  /**
   * @dev Removes a value from a set. O(1).
   *
   * Returns true if the value was removed from the set, that is if it was
   * present.
   */
  function remove(AddressSet storage set, address value) internal returns (bool) {
    return _remove(set._inner, bytes32(uint256(uint160(value))));
  }

  /**
   * @dev Returns true if the value is in the set. O(1).
   */
  function contains(AddressSet storage set, address value) internal view returns (bool) {
    return _contains(set._inner, bytes32(uint256(uint160(value))));
  }

  /**
   * @dev Returns the number of values in the set. O(1).
   */
  function length(AddressSet storage set) internal view returns (uint256) {
    return _length(set._inner);
  }

  /**
   * @dev Returns the value stored at position `index` in the set. O(1).
   *
   * Note that there are no guarantees on the ordering of values inside the
   * array, and it may change when more values are added or removed.
   *
   * Requirements:
   *
   * - `index` must be strictly less than {length}.
   */
  function at(AddressSet storage set, uint256 index) internal view returns (address) {
    return address(uint160(uint256(_at(set._inner, index))));
  }

  /**
   * @dev Return the entire set in an array
   *
   * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
   * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
   * this function has an unbounded cost, and using it as part of a state-changing function may render the function
   * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
   */
  function values(AddressSet storage set) internal view returns (address[] memory) {
    bytes32[] memory store = _values(set._inner);
    address[] memory result;

    /// @solidity memory-safe-assembly
    assembly {
      result := store
    }

    return result;
  }

  // UintSet

  struct UintSet {
    Set _inner;
  }

  /**
   * @dev Add a value to a set. O(1).
   *
   * Returns true if the value was added to the set, that is if it was not
   * already present.
   */
  function add(UintSet storage set, uint256 value) internal returns (bool) {
    return _add(set._inner, bytes32(value));
  }

  /**
   * @dev Removes a value from a set. O(1).
   *
   * Returns true if the value was removed from the set, that is if it was
   * present.
   */
  function remove(UintSet storage set, uint256 value) internal returns (bool) {
    return _remove(set._inner, bytes32(value));
  }

  /**
   * @dev Returns true if the value is in the set. O(1).
   */
  function contains(UintSet storage set, uint256 value) internal view returns (bool) {
    return _contains(set._inner, bytes32(value));
  }

  /**
   * @dev Returns the number of values in the set. O(1).
   */
  function length(UintSet storage set) internal view returns (uint256) {
    return _length(set._inner);
  }

  /**
   * @dev Returns the value stored at position `index` in the set. O(1).
   *
   * Note that there are no guarantees on the ordering of values inside the
   * array, and it may change when more values are added or removed.
   *
   * Requirements:
   *
   * - `index` must be strictly less than {length}.
   */
  function at(UintSet storage set, uint256 index) internal view returns (uint256) {
    return uint256(_at(set._inner, index));
  }

  /**
   * @dev Return the entire set in an array
   *
   * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
   * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
   * this function has an unbounded cost, and using it as part of a state-changing function may render the function
   * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
   */
  function values(UintSet storage set) internal view returns (uint256[] memory) {
    bytes32[] memory store = _values(set._inner);
    uint256[] memory result;

    /// @solidity memory-safe-assembly
    assembly {
      result := store
    }

    return result;
  }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (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);
}

{
  "evmVersion": "paris",
  "libraries": {},
  "metadata": {
    "appendCBOR": true,
    "bytecodeHash": "none",
    "useLiteralContent": false
  },
  "optimizer": {
    "enabled": true,
    "runs": 80000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "remappings": [
    "forge-std/=node_modules/@chainlink/contracts/src/v0.8/vendor/forge-std/src/",
    "@chainlink/=node_modules/@chainlink/contracts/src/v0.8/"
  ],
  "viaIR": true
}

• No Contract Security Audit Submitted- Submit Audit Here

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AuthorizedCallers.AuthorizedCallerArgs","name":"authorizedCallerArgs","type":"tuple"}],"name":"applyAuthorizedCallerUpdates","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"uint64","name":"remoteChainSelector","type":"uint64"},{"internalType":"bool","name":"overrideExistingRamps","type":"bool"},{"components":[{"internalType":"address","name":"prevOnRamp","type":"address"},{"internalType":"address","name":"prevOffRamp","type":"address"}],"internalType":"struct NonceManager.PreviousRamps","name":"prevRamps","type":"tuple"}],"internalType":"struct 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NonceManager.PreviousRamps","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint64","name":"sourceChainSelector","type":"uint64"},{"internalType":"uint64","name":"expectedNonce","type":"uint64"},{"internalType":"bytes","name":"sender","type":"bytes"}],"name":"incrementInboundNonce","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"typeAndVersion","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"}]

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-----Decoded View---------------
Arg [0] : authorizedCallers (address[]): 

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000020
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000000