across-protocol · mrice32 · Jul 10, 2023 · Jul 7, 2023 · Jul 7, 2023
diff --git a/LICENSE b/LICENSE
diff --git a/README.md b/README.md
@@ -69,3 +69,10 @@ These are special instructions for compiling and deploying contracts on `zksync`
 This step requires [Docker Desktop](https://www.docker.com/products/docker-desktop/) to be running, as the `solc` docker image is fetched as a prerequisite.
 
 `yarn compile-zksync`
+
+## License
+
+All code in this repository is licensed under BUSL-1.1 unless specified differently in the file.
+Individual exceptions to this license can be made by Risk Labs, which holds the rights to this
+software and design. If you are interested in using the code or designs in a derivative work,
+feel free to reach out to [email protected].
diff --git a/contracts/AcrossConfigStore.sol b/contracts/AcrossConfigStore.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "@uma/core/contracts/common/implementation/MultiCaller.sol";

diff --git a/contracts/Arbitrum_SpokePool.sol b/contracts/Arbitrum_SpokePool.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "./SpokePool.sol";

diff --git a/contracts/Boba_SpokePool.sol b/contracts/Boba_SpokePool.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "./Ovm_SpokePool.sol";

diff --git a/contracts/BondToken.sol b/contracts/BondToken.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "@openzeppelin/contracts/access/Ownable.sol";

diff --git a/contracts/Ethereum_SpokePool.sol b/contracts/Ethereum_SpokePool.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "./SpokePool.sol";

diff --git a/contracts/HubPool.sol b/contracts/HubPool.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "./MerkleLib.sol";

diff --git a/contracts/Lockable.sol b/contracts/Lockable.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 /**

diff --git a/contracts/LpTokenFactory.sol b/contracts/LpTokenFactory.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "./interfaces/LpTokenFactoryInterface.sol";

diff --git a/contracts/MerkleLib.sol b/contracts/MerkleLib.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "./interfaces/SpokePoolInterface.sol";

diff --git a/contracts/Optimism_SpokePool.sol b/contracts/Optimism_SpokePool.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 import "@eth-optimism/contracts/libraries/constants/Lib_PredeployAddresses.sol";
 

diff --git a/contracts/Ovm_SpokePool.sol b/contracts/Ovm_SpokePool.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "./SpokePool.sol";

diff --git a/contracts/PolygonTokenBridger.sol b/contracts/PolygonTokenBridger.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "./Lockable.sol";

diff --git a/contracts/Polygon_SpokePool.sol b/contracts/Polygon_SpokePool.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "./SpokePool.sol";

diff --git a/contracts/SpokePool.sol b/contracts/SpokePool.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "./MerkleLib.sol";

diff --git a/contracts/Succinct_SpokePool.sol b/contracts/Succinct_SpokePool.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "./SpokePool.sol";

diff --git a/contracts/ZkSync_SpokePool.sol b/contracts/ZkSync_SpokePool.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "./SpokePool.sol";

diff --git a/contracts/chain-adapters/Arbitrum_Adapter.sol b/contracts/chain-adapters/Arbitrum_Adapter.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "./interfaces/AdapterInterface.sol";
@@ -146,16 +146,16 @@
    // ticket’s calldata in the retry buffer. (current base submission fee is queryable via
    // ArbRetryableTx.getSubmissionPrice). ArbRetryableTicket precompile interface exists at L2 address
    // 0x000000000000000000000000000000000000006E.
    uint256 public constant l2MaxSubmissionCost = 0.01e18;

    // L2 Gas price bid for immediate L2 execution attempt (queryable via standard eth*gasPrice RPC)
    uint256 public constant l2GasPrice = 5e9; // 5 gWei

    uint32 public constant RELAY_TOKENS_L2_GAS_LIMIT = 300_000;
    uint32 public constant RELAY_MESSAGE_L2_GAS_LIMIT = 2_000_000;

    // This address on L2 receives extra ETH that is left over after relaying a message via the inbox.
    address public constant l2RefundL2Address = 0x428AB2BA90Eba0a4Be7aF34C9Ac451ab061AC010;

    ArbitrumL1InboxLike public immutable l1Inbox;


diff --git a/contracts/chain-adapters/Arbitrum_RescueAdapter.sol b/contracts/chain-adapters/Arbitrum_RescueAdapter.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "./interfaces/AdapterInterface.sol";

diff --git a/contracts/chain-adapters/Arbitrum_SendTokensAdapter.sol b/contracts/chain-adapters/Arbitrum_SendTokensAdapter.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "./interfaces/AdapterInterface.sol";
@@ -21,7 +21,7 @@

    ArbitrumL1ERC20GatewayLike public immutable l1ERC20GatewayRouter;

    address public constant l2RefundL2Address = 0x428AB2BA90Eba0a4Be7aF34C9Ac451ab061AC010;

    /**
     * @notice Constructs new Adapter.

diff --git a/contracts/chain-adapters/Boba_Adapter.sol b/contracts/chain-adapters/Boba_Adapter.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "./interfaces/AdapterInterface.sol";

diff --git a/contracts/chain-adapters/Ethereum_Adapter.sol b/contracts/chain-adapters/Ethereum_Adapter.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "./interfaces/AdapterInterface.sol";

diff --git a/contracts/chain-adapters/Ethereum_RescueAdapter.sol b/contracts/chain-adapters/Ethereum_RescueAdapter.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "./interfaces/AdapterInterface.sol";

diff --git a/contracts/chain-adapters/Mock_Adapter.sol b/contracts/chain-adapters/Mock_Adapter.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "./interfaces/AdapterInterface.sol";

diff --git a/contracts/chain-adapters/Optimism_Adapter.sol b/contracts/chain-adapters/Optimism_Adapter.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "./interfaces/AdapterInterface.sol";

diff --git a/contracts/chain-adapters/Polygon_Adapter.sol b/contracts/chain-adapters/Polygon_Adapter.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "./interfaces/AdapterInterface.sol";

diff --git a/contracts/chain-adapters/Succinct_Adapter.sol b/contracts/chain-adapters/Succinct_Adapter.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "./interfaces/AdapterInterface.sol";
@@ -28,7 +28,7 @@
     * @param message Data to send to target.
     */
    function relayMessage(address target, bytes calldata message) external payable override {
        bytes32 messageRoot = succinctSourceAmb.send(destinationChainId, target, message);

        // Note: this emits two events. MessageRelayed for the sake of compatibility with other adapters.
        // It emits SuccinctMessageRelayed to encode additional tracking information that is Succinct-specific.
@@ -44,7 +44,7 @@
        address,
        uint256,
        address
    ) external payable override {
        // This method is intentionally left as a no-op.
        // If the adapter is intended to be able to relay tokens, this method should be overriden.
    }

diff --git a/contracts/chain-adapters/ZkSync_Adapter.sol b/contracts/chain-adapters/ZkSync_Adapter.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "./interfaces/AdapterInterface.sol";

diff --git a/contracts/chain-adapters/interfaces/AdapterInterface.sol b/contracts/chain-adapters/interfaces/AdapterInterface.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 /**

diff --git a/contracts/erc1155/MintableERC1155.sol b/contracts/erc1155/MintableERC1155.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "@openzeppelin/contracts/access/Ownable.sol";

diff --git a/contracts/external/interfaces/WETH9Interface.sol b/contracts/external/interfaces/WETH9Interface.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 /**

diff --git a/contracts/interfaces/HubPoolInterface.sol b/contracts/interfaces/HubPoolInterface.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

diff --git a/contracts/interfaces/LpTokenFactoryInterface.sol b/contracts/interfaces/LpTokenFactoryInterface.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 /**

diff --git a/contracts/interfaces/SpokePoolInterface.sol b/contracts/interfaces/SpokePoolInterface.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 /**

diff --git a/contracts/merkle-distributor/AcrossMerkleDistributor.sol b/contracts/merkle-distributor/AcrossMerkleDistributor.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "@uma/core/contracts/merkle-distributor/implementation/MerkleDistributor.sol";

diff --git a/contracts/test/AcrossMessageHandlerMock.sol b/contracts/test/AcrossMessageHandlerMock.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "../SpokePool.sol";
@@ -10,5 +10,5 @@
        bool fillCompleted,
        address relayer,
        bytes memory message
    ) external override {}
 }
diff --git a/contracts/test/ArbitrumMocks.sol b/contracts/test/ArbitrumMocks.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 contract ArbitrumMockErc20GatewayRouter {

diff --git a/contracts/test/MerkleLibTest.sol b/contracts/test/MerkleLibTest.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "../MerkleLib.sol";

diff --git a/contracts/test/MockBedrockStandardBridge.sol b/contracts/test/MockBedrockStandardBridge.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "../Ovm_SpokePool.sol";

diff --git a/contracts/test/MockOptimism_SpokePool.sol b/contracts/test/MockOptimism_SpokePool.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 import "../Ovm_SpokePool.sol";
 

diff --git a/contracts/test/PolygonERC20Test.sol b/contracts/test/PolygonERC20Test.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "@uma/core/contracts/common/implementation/ExpandedERC20.sol";

diff --git a/contracts/test/PolygonMocks.sol b/contracts/test/PolygonMocks.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "@openzeppelin/contracts/token/ERC20/ERC20.sol";

diff --git a/contracts/test/SuccinctMocks.sol b/contracts/test/SuccinctMocks.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 contract TelepathyBroadcasterMock {

diff --git a/contracts/upgradeable/EIP712CrossChainUpgradeable.sol b/contracts/upgradeable/EIP712CrossChainUpgradeable.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 import "@openzeppelin/contracts-upgradeable/utils/cryptography/ECDSAUpgradeable.sol";

diff --git a/contracts/upgradeable/MultiCallerUpgradeable.sol b/contracts/upgradeable/MultiCallerUpgradeable.sol
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-License-Identifier: BUSL-1.1
 pragma solidity ^0.8.0;
 
 /**