false
false

Contract Address Details

0x6f1ef246894b6269e2a98c741c36385f61ee1e32

Contract Name
L2GatewayRouter
Creator
0x88888a–872063 at 0x8ca7e1–df5dc7
Balance
0 ETH ( )
Tokens
Fetching tokens...
Transactions
0 Transactions
Transfers
0 Transfers
Gas Used
Fetching gas used...
Last Balance Update
81257897
Warning! Contract bytecode has been changed and doesn't match the verified one. Therefore, interaction with this smart contract may be risky.
Contract name:
L2GatewayRouter




Optimization enabled
true
Compiler version
v0.6.11+commit.5ef660b1




Optimization runs
100
Verified at
2023-08-24T12:54:51.254000Z

contracts/tokenbridge/arbitrum/gateway/L2GatewayRouter.sol

// SPDX-License-Identifier: Apache-2.0

/*
 * Copyright 2020, Offchain Labs, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

pragma solidity ^0.6.11;

import "../../libraries/gateway/GatewayRouter.sol";
import "../../ethereum/gateway/L1GatewayRouter.sol";
import "../L2ArbitrumMessenger.sol";
import "../../libraries/AddressAliasHelper.sol";

/**
 * @title Handles withdrawals from Ethereum into Arbitrum. Tokens are routered to their appropriate L2 gateway (Router itself also conforms to the Gateway interface).
 * @notice Router also serves as an L2-L1 token address oracle.
 */
contract L2GatewayRouter is GatewayRouter, L2ArbitrumMessenger {
    modifier onlyCounterpartGateway() override {
        require(
            msg.sender == AddressAliasHelper.applyL1ToL2Alias(counterpartGateway),
            "ONLY_COUNTERPART_GATEWAY"
        );
        _;
    }

    function initialize(address _counterpartGateway, address _defaultGateway) public {
        GatewayRouter._initialize(_counterpartGateway, address(0), _defaultGateway);
    }

    function setGateway(address[] memory _l1Token, address[] memory _gateway)
        external
        onlyCounterpartGateway
    {
        // counterpart gateway (L1 router) should never allow wrong lengths
        assert(_l1Token.length == _gateway.length);

        for (uint256 i = 0; i < _l1Token.length; i++) {
            l1TokenToGateway[_l1Token[i]] = _gateway[i];
            emit GatewaySet(_l1Token[i], _gateway[i]);
        }
    }

    function outboundTransfer(
        address _l1Token,
        address _to,
        uint256 _amount,
        bytes calldata _data
    ) public payable returns (bytes memory) {
        return outboundTransfer(_l1Token, _to, _amount, 0, 0, _data);
    }

    function setDefaultGateway(address newL2DefaultGateway) external onlyCounterpartGateway {
        defaultGateway = newL2DefaultGateway;
        emit DefaultGatewayUpdated(newL2DefaultGateway);
    }
}

contracts/tokenbridge/libraries/gateway/TokenGateway.sol

// SPDX-License-Identifier: Apache-2.0

/*
 * Copyright 2020, Offchain Labs, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

pragma solidity ^0.6.11;

import "./ITokenGateway.sol";
import "@openzeppelin/contracts/utils/Address.sol";

abstract contract TokenGateway is ITokenGateway {
    using Address for address;

    address public counterpartGateway;
    address public router;

    // This modifier is overriden in gateways to validate the message sender
    // For L1 to L2 messages need to be validated against the aliased counterpartGateway
    // For L2 to L1 messages need to be validated against the bridge and L2ToL1Sender
    // prettier-ignore
    modifier onlyCounterpartGateway() virtual;

    function _initialize(address _counterpartGateway, address _router) internal virtual {
        // This initializes internal variables of the abstract contract it can be chained together with other functions.
        // It is virtual so subclasses can override or wrap around this logic.
        // An example where this is useful is different subclasses that validate the router address differently
        require(_counterpartGateway != address(0), "INVALID_COUNTERPART");
        require(counterpartGateway == address(0), "ALREADY_INIT");
        counterpartGateway = _counterpartGateway;
        router = _router;
    }

    function isRouter(address _target) internal view returns (bool isTargetRouter) {
        return _target == router;
    }

    /**
     * @notice Calculate the address used when bridging an ERC20 token
     * @dev the L1 and L2 address oracles may not always be in sync.
     * For example, a custom token may have been registered but not deploy or the contract self destructed.
     * @param l1ERC20 address of L1 token
     * @return L2 address of a bridged ERC20 token
     */
    function calculateL2TokenAddress(address l1ERC20)
        public
        view
        virtual
        override
        returns (address);
}

Contract ABI

[{"type":"event","name":"DefaultGatewayUpdated","inputs":[{"type":"address","name":"newDefaultGateway","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"GatewaySet","inputs":[{"type":"address","name":"l1Token","internalType":"address","indexed":true},{"type":"address","name":"gateway","internalType":"address","indexed":true}],"anonymous":false},{"type":"event","name":"TransferRouted","inputs":[{"type":"address","name":"token","internalType":"address","indexed":true},{"type":"address","name":"_userFrom","internalType":"address","indexed":true},{"type":"address","name":"_userTo","internalType":"address","indexed":true},{"type":"address","name":"gateway","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"TxToL1","inputs":[{"type":"address","name":"_from","internalType":"address","indexed":true},{"type":"address","name":"_to","internalType":"address","indexed":true},{"type":"uint256","name":"_id","internalType":"uint256","indexed":true},{"type":"bytes","name":"_data","internalType":"bytes","indexed":false}],"anonymous":false},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"calculateL2TokenAddress","inputs":[{"type":"address","name":"l1ERC20","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"counterpartGateway","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"defaultGateway","inputs":[]},{"type":"function","stateMutability":"payable","outputs":[],"name":"finalizeInboundTransfer","inputs":[{"type":"address","name":"","internalType":"address"},{"type":"address","name":"","internalType":"address"},{"type":"address","name":"","internalType":"address"},{"type":"uint256","name":"","internalType":"uint256"},{"type":"bytes","name":"","internalType":"bytes"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"gateway","internalType":"address"}],"name":"getGateway","inputs":[{"type":"address","name":"_token","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"bytes","name":"","internalType":"bytes"}],"name":"getOutboundCalldata","inputs":[{"type":"address","name":"_token","internalType":"address"},{"type":"address","name":"_from","internalType":"address"},{"type":"address","name":"_to","internalType":"address"},{"type":"uint256","name":"_amount","internalType":"uint256"},{"type":"bytes","name":"_data","internalType":"bytes"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"initialize","inputs":[{"type":"address","name":"_counterpartGateway","internalType":"address"},{"type":"address","name":"_defaultGateway","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"l1TokenToGateway","inputs":[{"type":"address","name":"","internalType":"address"}]},{"type":"function","stateMutability":"payable","outputs":[{"type":"bytes","name":"","internalType":"bytes"}],"name":"outboundTransfer","inputs":[{"type":"address","name":"_l1Token","internalType":"address"},{"type":"address","name":"_to","internalType":"address"},{"type":"uint256","name":"_amount","internalType":"uint256"},{"type":"bytes","name":"_data","internalType":"bytes"}]},{"type":"function","stateMutability":"payable","outputs":[{"type":"bytes","name":"","internalType":"bytes"}],"name":"outboundTransfer","inputs":[{"type":"address","name":"_token","internalType":"address"},{"type":"address","name":"_to","internalType":"address"},{"type":"uint256","name":"_amount","internalType":"uint256"},{"type":"uint256","name":"_maxGas","internalType":"uint256"},{"type":"uint256","name":"_gasPriceBid","internalType":"uint256"},{"type":"bytes","name":"_data","internalType":"bytes"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"postUpgradeInit","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"router","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setDefaultGateway","inputs":[{"type":"address","name":"newL2DefaultGateway","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setGateway","inputs":[{"type":"address[]","name":"_l1Token","internalType":"address[]"},{"type":"address[]","name":"_gateway","internalType":"address[]"}]}]

Contract Creation Code

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Deployed ByteCode

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