From ca6847998d867dc5d66e76a03bda9c72ae8d287b Mon Sep 17 00:00:00 2001 From: Determinant Date: Thu, 2 Jul 2020 01:36:18 -0400 Subject: make MultiCoin.transfer work --- core/vm/interpreter.go | 2 +- core/vm/jump_table.go | 3 ++- core/vm/memory_table.go | 16 ++++++++++++++++ examples/multicoin/main.go | 10 +++++++--- examples/multicoin/mc_test.sol | 8 ++++++++ 5 files changed, 34 insertions(+), 5 deletions(-) diff --git a/core/vm/interpreter.go b/core/vm/interpreter.go index 007e5e3..3d388d6 100644 --- a/core/vm/interpreter.go +++ b/core/vm/interpreter.go @@ -220,7 +220,7 @@ func (in *EVMInterpreter) Run(contract *Contract, input []byte, readOnly bool) ( // for a call operation is the value. Transferring value from one // account to the others means the state is modified and should also // return with an error. - if operation.writes || (op == CALL && stack.Back(2).Sign() != 0) { + if operation.writes || ((op == CALL || op == CALLEX) && stack.Back(2).Sign() != 0) { return nil, errWriteProtection } } diff --git a/core/vm/jump_table.go b/core/vm/jump_table.go index 359b753..737dd14 100644 --- a/core/vm/jump_table.go +++ b/core/vm/jump_table.go @@ -183,6 +183,7 @@ func newTangerineWhistleInstructionSet() JumpTable { instructionSet[SLOAD].constantGas = params.SloadGasEIP150 instructionSet[EXTCODECOPY].constantGas = params.ExtcodeCopyBaseEIP150 instructionSet[CALL].constantGas = params.CallGasEIP150 + instructionSet[CALLEX].constantGas = params.CallGasEIP150 instructionSet[CALLCODE].constantGas = params.CallGasEIP150 instructionSet[DELEGATECALL].constantGas = params.CallGasEIP150 return instructionSet @@ -1147,7 +1148,7 @@ func newFrontierInstructionSet() JumpTable { dynamicGas: gasCall, minStack: minStack(9, 1), maxStack: maxStack(9, 1), - memorySize: memoryCall, + memorySize: memoryCallExpert, valid: true, returns: true, }, diff --git a/core/vm/memory_table.go b/core/vm/memory_table.go index 4fcb414..047f610 100644 --- a/core/vm/memory_table.go +++ b/core/vm/memory_table.go @@ -70,6 +70,22 @@ func memoryCall(stack *Stack) (uint64, bool) { } return y, false } + +func memoryCallExpert(stack *Stack) (uint64, bool) { + x, overflow := calcMemSize64(stack.Back(7), stack.Back(8)) + if overflow { + return 0, true + } + y, overflow := calcMemSize64(stack.Back(5), stack.Back(6)) + if overflow { + return 0, true + } + if x > y { + return x, false + } + return y, false +} + func memoryDelegateCall(stack *Stack) (uint64, bool) { x, overflow := calcMemSize64(stack.Back(4), stack.Back(5)) if overflow { diff --git a/examples/multicoin/main.go b/examples/multicoin/main.go index 9d1970a..403db4d 100644 --- a/examples/multicoin/main.go +++ b/examples/multicoin/main.go @@ -55,7 +55,7 @@ func main() { bob, _ := coreth.NewKey(rand.Reader) g := new(core.Genesis) - b := `{"config":{"chainId":1,"homesteadBlock":0,"daoForkBlock":0,"daoForkSupport":true,"eip150Block":0,"eip150Hash":"0x2086799aeebeae135c246c65021c82b4e15a2c451340993aacfd2751886514f0","eip155Block":0,"eip158Block":0,"byzantiumBlock":0,"constantinopleBlock":0,"petersburgBlock":0},"nonce":"0x0","timestamp":"0x0","extraData":"0x00","gasLimit":"0x5f5e100","difficulty":"0x0","mixHash":"0x0000000000000000000000000000000000000000000000000000000000000000","coinbase":"0x0000000000000000000000000000000000000000","alloc":{"751a0b96e1042bee789452ecb20253fba40dbe85":{"balance":"0x1000000000000000", "mcbalance": {"0x0000000000000000000000000000000000000000000000000000000000000000": 1000000000000000000}}, "0100000000000000000000000000000000000000": {"code": "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", "balance": "0x0", "mcbalance": {}}},"number":"0x0","gasUsed":"0x0","parentHash":"0x0000000000000000000000000000000000000000000000000000000000000000"}` + b := `{"config":{"chainId":1,"homesteadBlock":0,"daoForkBlock":0,"daoForkSupport":true,"eip150Block":0,"eip150Hash":"0x2086799aeebeae135c246c65021c82b4e15a2c451340993aacfd2751886514f0","eip155Block":0,"eip158Block":0,"byzantiumBlock":0,"constantinopleBlock":0,"petersburgBlock":0},"nonce":"0x0","timestamp":"0x0","extraData":"0x00","gasLimit":"0x5f5e100","difficulty":"0x0","mixHash":"0x0000000000000000000000000000000000000000000000000000000000000000","coinbase":"0x0000000000000000000000000000000000000000","alloc":{"751a0b96e1042bee789452ecb20253fba40dbe85":{"balance":"0x1000000000000000", "mcbalance": {"0x0000000000000000000000000000000000000000000000000000000000000000": 1000000000000000000}}, "0100000000000000000000000000000000000000": {"code": "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", "balance": "0x0", "mcbalance": {}}},"number":"0x0","gasUsed":"0x0","parentHash":"0x0000000000000000000000000000000000000000000000000000000000000000"}` k := "0xabd71b35d559563fea757f0f5edbde286fb8c043105b15abb7cd57189306d7d1" err := json.Unmarshal([]byte(b), g) checkError(err) @@ -149,15 +149,19 @@ func main() { chain.AddRemoteTxs([]*types.Transaction{signedTx}) nonce++ } - code, err = a.Pack("updateBalance", big.NewInt(0)) + code, err = a.Pack("withdraw", big.NewInt(0), big.NewInt(0), big.NewInt(10000000000000000)) tx = types.NewTransaction(nonce, contractAddr, big.NewInt(0), uint64(gasLimit), gasPrice, code) signedTx, err = types.SignTx(tx, types.NewEIP155Signer(chainID), genKey.PrivateKey) checkError(err) chain.AddRemoteTxs([]*types.Transaction{signedTx}) nonce++ + code, err = a.Pack("updateBalance", big.NewInt(0)) + tx = types.NewTransaction(nonce, contractAddr, big.NewInt(0), uint64(gasLimit), gasPrice, code) + signedTx, err = types.SignTx(tx, types.NewEIP155Signer(chainID), genKey.PrivateKey) checkError(err) - + chain.AddRemoteTxs([]*types.Transaction{signedTx}) + nonce++ }() } return false diff --git a/examples/multicoin/mc_test.sol b/examples/multicoin/mc_test.sol index a7d468e..bfd42a5 100644 --- a/examples/multicoin/mc_test.sol +++ b/examples/multicoin/mc_test.sol @@ -16,4 +16,12 @@ contract MCTest { } function deposit() public payable {} + + function withdraw(uint256 amount, uint256 coinid, uint256 amount2) public { + (bool success,) = MultiCoin.delegatecall( + abi.encodeWithSignature("transfer(address,uint256,uint256,uint256)", + msg.sender, amount, coinid, amount2)); + + require(success); + } } -- cgit v1.2.3-70-g09d2