diff --git a/core/interface.go b/core/interface.go index 1a49c54..b6b25f9 100644 --- a/core/interface.go +++ b/core/interface.go @@ -61,6 +61,15 @@ type Backend interface { type OpCode byte +type BlockTracer interface { + TracerResult + PreProcessBlock(hash Hash, number uint64, encoded []byte) + PreProcessTransaction(tx Hash, block Hash, i int) + BlockProcessingError(tx Hash, block Hash, err error) + PostProcessTransaction(tx Hash, block Hash, i int, receipt []byte) + PostProcessBlock(block Hash) +} + type TracerResult interface { CaptureStart(from Address, to Address, create bool, input []byte, gas uint64, value *big.Int) CaptureState(pc uint64, op OpCode, gas, cost uint64, scope ScopeContext, rData []byte, depth int, err error) diff --git a/restricted/opcodes.go b/restricted/opcodes.go new file mode 100644 index 0000000..50f7946 --- /dev/null +++ b/restricted/opcodes.go @@ -0,0 +1,532 @@ +package restricted + +import ( + "fmt" +) + +// OpCode is an EVM opcode +type OpCode byte + +// IsPush specifies if an opcode is a PUSH opcode. +func (op OpCode) IsPush() bool { + switch op { + case PUSH1, PUSH2, PUSH3, PUSH4, PUSH5, PUSH6, PUSH7, PUSH8, PUSH9, PUSH10, PUSH11, PUSH12, PUSH13, PUSH14, PUSH15, PUSH16, PUSH17, PUSH18, PUSH19, PUSH20, PUSH21, PUSH22, PUSH23, PUSH24, PUSH25, PUSH26, PUSH27, PUSH28, PUSH29, PUSH30, PUSH31, PUSH32: + return true + } + return false +} + +// IsStaticJump specifies if an opcode is JUMP. +func (op OpCode) IsStaticJump() bool { + return op == JUMP +} + +// 0x0 range - arithmetic ops. +const ( + STOP OpCode = iota + ADD + MUL + SUB + DIV + SDIV + MOD + SMOD + ADDMOD + MULMOD + EXP + SIGNEXTEND +) + +// 0x10 range - comparison ops. +const ( + LT OpCode = iota + 0x10 + GT + SLT + SGT + EQ + ISZERO + AND + OR + XOR + NOT + BYTE + SHL + SHR + SAR + + SHA3 OpCode = 0x20 +) + +// 0x30 range - closure state. +const ( + ADDRESS OpCode = 0x30 + iota + BALANCE + ORIGIN + CALLER + CALLVALUE + CALLDATALOAD + CALLDATASIZE + CALLDATACOPY + CODESIZE + CODECOPY + GASPRICE + EXTCODESIZE + EXTCODECOPY + RETURNDATASIZE + RETURNDATACOPY + EXTCODEHASH +) + +// 0x40 range - block operations. +const ( + BLOCKHASH OpCode = 0x40 + iota + COINBASE + TIMESTAMP + NUMBER + DIFFICULTY + GASLIMIT + CHAINID OpCode = 0x46 + SELFBALANCE OpCode = 0x47 + BASEFEE OpCode = 0x48 +) + +// 0x50 range - 'storage' and execution. +const ( + POP OpCode = 0x50 + MLOAD OpCode = 0x51 + MSTORE OpCode = 0x52 + MSTORE8 OpCode = 0x53 + SLOAD OpCode = 0x54 + SSTORE OpCode = 0x55 + JUMP OpCode = 0x56 + JUMPI OpCode = 0x57 + PC OpCode = 0x58 + MSIZE OpCode = 0x59 + GAS OpCode = 0x5a + JUMPDEST OpCode = 0x5b +) + +// 0x60 range. +const ( + PUSH1 OpCode = 0x60 + iota + PUSH2 + PUSH3 + PUSH4 + PUSH5 + PUSH6 + PUSH7 + PUSH8 + PUSH9 + PUSH10 + PUSH11 + PUSH12 + PUSH13 + PUSH14 + PUSH15 + PUSH16 + PUSH17 + PUSH18 + PUSH19 + PUSH20 + PUSH21 + PUSH22 + PUSH23 + PUSH24 + PUSH25 + PUSH26 + PUSH27 + PUSH28 + PUSH29 + PUSH30 + PUSH31 + PUSH32 + DUP1 + DUP2 + DUP3 + DUP4 + DUP5 + DUP6 + DUP7 + DUP8 + DUP9 + DUP10 + DUP11 + DUP12 + DUP13 + DUP14 + DUP15 + DUP16 + SWAP1 + SWAP2 + SWAP3 + SWAP4 + SWAP5 + SWAP6 + SWAP7 + SWAP8 + SWAP9 + SWAP10 + SWAP11 + SWAP12 + SWAP13 + SWAP14 + SWAP15 + SWAP16 +) + +// 0xa0 range - logging ops. +const ( + LOG0 OpCode = 0xa0 + iota + LOG1 + LOG2 + LOG3 + LOG4 +) + +// unofficial opcodes used for parsing. +const ( + PUSH OpCode = 0xb0 + iota + DUP + SWAP +) + +// 0xf0 range - closures. +const ( + CREATE OpCode = 0xf0 + iota + CALL + CALLCODE + RETURN + DELEGATECALL + CREATE2 + STATICCALL OpCode = 0xfa + REVERT OpCode = 0xfd + SELFDESTRUCT OpCode = 0xff +) + +// Since the opcodes aren't all in order we can't use a regular slice. +var opCodeToString = map[OpCode]string{ + // 0x0 range - arithmetic ops. + STOP: "STOP", + ADD: "ADD", + MUL: "MUL", + SUB: "SUB", + DIV: "DIV", + SDIV: "SDIV", + MOD: "MOD", + SMOD: "SMOD", + EXP: "EXP", + NOT: "NOT", + LT: "LT", + GT: "GT", + SLT: "SLT", + SGT: "SGT", + EQ: "EQ", + ISZERO: "ISZERO", + SIGNEXTEND: "SIGNEXTEND", + + // 0x10 range - bit ops. + AND: "AND", + OR: "OR", + XOR: "XOR", + BYTE: "BYTE", + SHL: "SHL", + SHR: "SHR", + SAR: "SAR", + ADDMOD: "ADDMOD", + MULMOD: "MULMOD", + + // 0x20 range - crypto. + SHA3: "SHA3", + + // 0x30 range - closure state. + ADDRESS: "ADDRESS", + BALANCE: "BALANCE", + ORIGIN: "ORIGIN", + CALLER: "CALLER", + CALLVALUE: "CALLVALUE", + CALLDATALOAD: "CALLDATALOAD", + CALLDATASIZE: "CALLDATASIZE", + CALLDATACOPY: "CALLDATACOPY", + CODESIZE: "CODESIZE", + CODECOPY: "CODECOPY", + GASPRICE: "GASPRICE", + EXTCODESIZE: "EXTCODESIZE", + EXTCODECOPY: "EXTCODECOPY", + RETURNDATASIZE: "RETURNDATASIZE", + RETURNDATACOPY: "RETURNDATACOPY", + EXTCODEHASH: "EXTCODEHASH", + + // 0x40 range - block operations. + BLOCKHASH: "BLOCKHASH", + COINBASE: "COINBASE", + TIMESTAMP: "TIMESTAMP", + NUMBER: "NUMBER", + DIFFICULTY: "DIFFICULTY", + GASLIMIT: "GASLIMIT", + CHAINID: "CHAINID", + SELFBALANCE: "SELFBALANCE", + BASEFEE: "BASEFEE", + + // 0x50 range - 'storage' and execution. + POP: "POP", + //DUP: "DUP", + //SWAP: "SWAP", + MLOAD: "MLOAD", + MSTORE: "MSTORE", + MSTORE8: "MSTORE8", + SLOAD: "SLOAD", + SSTORE: "SSTORE", + JUMP: "JUMP", + JUMPI: "JUMPI", + PC: "PC", + MSIZE: "MSIZE", + GAS: "GAS", + JUMPDEST: "JUMPDEST", + + // 0x60 range - push. + PUSH1: "PUSH1", + PUSH2: "PUSH2", + PUSH3: "PUSH3", + PUSH4: "PUSH4", + PUSH5: "PUSH5", + PUSH6: "PUSH6", + PUSH7: "PUSH7", + PUSH8: "PUSH8", + PUSH9: "PUSH9", + PUSH10: "PUSH10", + PUSH11: "PUSH11", + PUSH12: "PUSH12", + PUSH13: "PUSH13", + PUSH14: "PUSH14", + PUSH15: "PUSH15", + PUSH16: "PUSH16", + PUSH17: "PUSH17", + PUSH18: "PUSH18", + PUSH19: "PUSH19", + PUSH20: "PUSH20", + PUSH21: "PUSH21", + PUSH22: "PUSH22", + PUSH23: "PUSH23", + PUSH24: "PUSH24", + PUSH25: "PUSH25", + PUSH26: "PUSH26", + PUSH27: "PUSH27", + PUSH28: "PUSH28", + PUSH29: "PUSH29", + PUSH30: "PUSH30", + PUSH31: "PUSH31", + PUSH32: "PUSH32", + + DUP1: "DUP1", + DUP2: "DUP2", + DUP3: "DUP3", + DUP4: "DUP4", + DUP5: "DUP5", + DUP6: "DUP6", + DUP7: "DUP7", + DUP8: "DUP8", + DUP9: "DUP9", + DUP10: "DUP10", + DUP11: "DUP11", + DUP12: "DUP12", + DUP13: "DUP13", + DUP14: "DUP14", + DUP15: "DUP15", + DUP16: "DUP16", + + SWAP1: "SWAP1", + SWAP2: "SWAP2", + SWAP3: "SWAP3", + SWAP4: "SWAP4", + SWAP5: "SWAP5", + SWAP6: "SWAP6", + SWAP7: "SWAP7", + SWAP8: "SWAP8", + SWAP9: "SWAP9", + SWAP10: "SWAP10", + SWAP11: "SWAP11", + SWAP12: "SWAP12", + SWAP13: "SWAP13", + SWAP14: "SWAP14", + SWAP15: "SWAP15", + SWAP16: "SWAP16", + LOG0: "LOG0", + LOG1: "LOG1", + LOG2: "LOG2", + LOG3: "LOG3", + LOG4: "LOG4", + + // 0xf0 range. + CREATE: "CREATE", + CALL: "CALL", + RETURN: "RETURN", + CALLCODE: "CALLCODE", + DELEGATECALL: "DELEGATECALL", + CREATE2: "CREATE2", + STATICCALL: "STATICCALL", + REVERT: "REVERT", + SELFDESTRUCT: "SELFDESTRUCT", + + PUSH: "PUSH", + DUP: "DUP", + SWAP: "SWAP", +} + +func (op OpCode) String() string { + str := opCodeToString[op] + if len(str) == 0 { + return fmt.Sprintf("opcode 0x%x not defined", int(op)) + } + + return str +} + +var stringToOp = map[string]OpCode{ + "STOP": STOP, + "ADD": ADD, + "MUL": MUL, + "SUB": SUB, + "DIV": DIV, + "SDIV": SDIV, + "MOD": MOD, + "SMOD": SMOD, + "EXP": EXP, + "NOT": NOT, + "LT": LT, + "GT": GT, + "SLT": SLT, + "SGT": SGT, + "EQ": EQ, + "ISZERO": ISZERO, + "SIGNEXTEND": SIGNEXTEND, + "AND": AND, + "OR": OR, + "XOR": XOR, + "BYTE": BYTE, + "SHL": SHL, + "SHR": SHR, + "SAR": SAR, + "ADDMOD": ADDMOD, + "MULMOD": MULMOD, + "SHA3": SHA3, + "ADDRESS": ADDRESS, + "BALANCE": BALANCE, + "ORIGIN": ORIGIN, + "CALLER": CALLER, + "CALLVALUE": CALLVALUE, + "CALLDATALOAD": CALLDATALOAD, + "CALLDATASIZE": CALLDATASIZE, + "CALLDATACOPY": CALLDATACOPY, + "CHAINID": CHAINID, + "BASEFEE": BASEFEE, + "DELEGATECALL": DELEGATECALL, + "STATICCALL": STATICCALL, + "CODESIZE": CODESIZE, + "CODECOPY": CODECOPY, + "GASPRICE": GASPRICE, + "EXTCODESIZE": EXTCODESIZE, + "EXTCODECOPY": EXTCODECOPY, + "RETURNDATASIZE": RETURNDATASIZE, + "RETURNDATACOPY": RETURNDATACOPY, + "EXTCODEHASH": EXTCODEHASH, + "BLOCKHASH": BLOCKHASH, + "COINBASE": COINBASE, + "TIMESTAMP": TIMESTAMP, + "NUMBER": NUMBER, + "DIFFICULTY": DIFFICULTY, + "GASLIMIT": GASLIMIT, + "SELFBALANCE": SELFBALANCE, + "POP": POP, + "MLOAD": MLOAD, + "MSTORE": MSTORE, + "MSTORE8": MSTORE8, + "SLOAD": SLOAD, + "SSTORE": SSTORE, + "JUMP": JUMP, + "JUMPI": JUMPI, + "PC": PC, + "MSIZE": MSIZE, + "GAS": GAS, + "JUMPDEST": JUMPDEST, + "PUSH1": PUSH1, + "PUSH2": PUSH2, + "PUSH3": PUSH3, + "PUSH4": PUSH4, + "PUSH5": PUSH5, + "PUSH6": PUSH6, + "PUSH7": PUSH7, + "PUSH8": PUSH8, + "PUSH9": PUSH9, + "PUSH10": PUSH10, + "PUSH11": PUSH11, + "PUSH12": PUSH12, + "PUSH13": PUSH13, + "PUSH14": PUSH14, + "PUSH15": PUSH15, + "PUSH16": PUSH16, + "PUSH17": PUSH17, + "PUSH18": PUSH18, + "PUSH19": PUSH19, + "PUSH20": PUSH20, + "PUSH21": PUSH21, + "PUSH22": PUSH22, + "PUSH23": PUSH23, + "PUSH24": PUSH24, + "PUSH25": PUSH25, + "PUSH26": PUSH26, + "PUSH27": PUSH27, + "PUSH28": PUSH28, + "PUSH29": PUSH29, + "PUSH30": PUSH30, + "PUSH31": PUSH31, + "PUSH32": PUSH32, + "DUP1": DUP1, + "DUP2": DUP2, + "DUP3": DUP3, + "DUP4": DUP4, + "DUP5": DUP5, + "DUP6": DUP6, + "DUP7": DUP7, + "DUP8": DUP8, + "DUP9": DUP9, + "DUP10": DUP10, + "DUP11": DUP11, + "DUP12": DUP12, + "DUP13": DUP13, + "DUP14": DUP14, + "DUP15": DUP15, + "DUP16": DUP16, + "SWAP1": SWAP1, + "SWAP2": SWAP2, + "SWAP3": SWAP3, + "SWAP4": SWAP4, + "SWAP5": SWAP5, + "SWAP6": SWAP6, + "SWAP7": SWAP7, + "SWAP8": SWAP8, + "SWAP9": SWAP9, + "SWAP10": SWAP10, + "SWAP11": SWAP11, + "SWAP12": SWAP12, + "SWAP13": SWAP13, + "SWAP14": SWAP14, + "SWAP15": SWAP15, + "SWAP16": SWAP16, + "LOG0": LOG0, + "LOG1": LOG1, + "LOG2": LOG2, + "LOG3": LOG3, + "LOG4": LOG4, + "CREATE": CREATE, + "CREATE2": CREATE2, + "CALL": CALL, + "RETURN": RETURN, + "CALLCODE": CALLCODE, + "REVERT": REVERT, + "SELFDESTRUCT": SELFDESTRUCT, +} + +// StringToOp finds the opcode whose name is stored in `str`. +func StringToOp(str string) OpCode { + return stringToOp[str] +}