TMP: Gas Station

[Evert0x]

TMP-9: Gas station

---

tmp: 9
title: Gas Station
author: Evert Kors (@Evert0x)
discussions-to: #9
status: Draft
type: Module
created: 2021/02/04
requires (*optional):
replaces (*optional):

---

Simple Summary

THX modules support the _msgSender() function to retrieve the signer/sender of the transaction. This allows gas less transactions. This module provides a point of entry to these gas less calls.

Abstract

This module can be used for gas less transactions

Motivation

...

Specification

Interface

interface IGasStation {
    event Result(bool success, bytes data);

    function initializeGasStation(address _admin) external;

    function getGasStationAdmin() external view returns (address);

    function getLatestNonce(address _signer) external view returns (uint256);

    function call(
        bytes calldata _call,
        uint256 _nonce,
        bytes memory _sig
    ) external;

    function setSigning(bool _enabled) external;
}

Storage

 
library LibGasStationStorage {
  bytes32 constant GASSTATION_STORAGE_POSITION = keccak256(
    "diamond.standard.gasstation.storage"
  );

  struct GSStorage {
    address admin;
    mapping(address => uint256) signerNonce;
    uint256 lockCounter;
    bool enabled;
  }
}

Rationale

Backwards Compatibility

Reference Implementation

Security Considerations

Copyright