diff options
Diffstat (limited to 'core')
-rw-r--r-- | core/dao_test.go | 358 | ||||
-rw-r--r-- | core/execution.go | 3 | ||||
-rw-r--r-- | core/state_processor.go | 71 | ||||
-rw-r--r-- | core/vm_env.go | 10 |
4 files changed, 13 insertions, 429 deletions
diff --git a/core/dao_test.go b/core/dao_test.go deleted file mode 100644 index 12fa2ddd7..000000000 --- a/core/dao_test.go +++ /dev/null @@ -1,358 +0,0 @@ -// Copyright 2016 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>. - -package core - -import ( - "math/big" - "testing" - - "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/core/types" - "github.com/ethereum/go-ethereum/crypto" - "github.com/ethereum/go-ethereum/ethdb" - "github.com/ethereum/go-ethereum/event" - "github.com/ethereum/go-ethereum/params" -) - -// Some weird dependency for deploying a DAO instance. -var creatorDeployCode = 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- -// EVM deploy bytecode of the DAO to simulate blocking. -var daoDeployCode = common.FromHex("606060405260405160c0806132c88339610120604052905160805160a051925160e0516101005193949293828282600f829055601083905560118054610100830261010060a860020a031990911617905560405130906001906101bc8061033e8339600160a060020a03909316908301526101408201526040519081900361016001906000f060128054600160a060020a031916919091179055505060038054600160a060020a03199081168917909155600e80549091168717905550600c84905560405130906000906101bc806104fa8339018083600160a060020a0316815260200182815260200192505050604051809103906000f0600760006101000a815481600160a060020a03021916908302179055503060006040516101bc806106b68339018083600160a060020a0316815260200182815260200192505050604051809103906000f060088054600160a060020a031916919091179055600754600160a060020a03166000141561017557610002565b600854600160a060020a03166000141561018e57610002565b426002556005600190815560008054828255829080158290116101ca57600e0281600e0283600052602060002091820191016101ca9190610245565b50505030600160a060020a03908116600090815260046020526040808220805460ff19908116600190811790925560035490941683529120805490921617905550505050505050612a56806108726000396000f35b5050600060098201819055600a820155600d81018054600160a060020a03191690556001015b8082111561033a578054600160a060020a03191681556000600182810182905560028381018054848255909281161561010002600019011604601f81901061030c57505b506000600383018190556004838101805461ffff19169055600584018290556006840182905560078401805460ff19169055600884018054838255908352602090922061021f929091028101905b8082111561033a5760008082556001820181815560028301919091556003919091018054600160a060020a03191690556102d7565b601f01602090049060005260206000209081019061028991905b8082111561033a5760008155600101610326565b50905660606040818152806101bc833960a090525160805160008054600160a060020a03191690921760a060020a60ff0219167401000000000000000000000000000000000000000090910217815561016290819061005a90396000f3606060405236156100405760e060020a60003504630221038a811461004d57806318bdc79a146100aa5780638da5cb5b146100be578063d2cc718f146100d0575b6100d96001805434019055565b6100db6004356024356000805433600160a060020a0390811691161415806100755750600034115b806100a05750805460a060020a900460ff1680156100a057508054600160a060020a03848116911614155b156100f757610002565b6100db60005460ff60a060020a9091041681565b6100ed600054600160a060020a031681565b6100db60015481565b005b60408051918252519081900360200190f35b6060908152602090f35b600160a060020a0383168260608381818185876185025a03f1925050501561015c57604080518381529051600160a060020a038516917f9735b0cb909f3d21d5c16bbcccd272d85fa11446f6d679f6ecb170d2dabfecfc919081900360200190a25060015b929150505660606040818152806101bc833960a090525160805160008054600160a060020a03191690921760a060020a60ff0219167401000000000000000000000000000000000000000090910217815561016290819061005a90396000f3606060405236156100405760e060020a60003504630221038a811461004d57806318bdc79a146100aa5780638da5cb5b146100be578063d2cc718f146100d0575b6100d96001805434019055565b6100db6004356024356000805433600160a060020a0390811691161415806100755750600034115b806100a05750805460a060020a900460ff1680156100a057508054600160a060020a03848116911614155b156100f757610002565b6100db60005460ff60a060020a9091041681565b6100ed600054600160a060020a031681565b6100db60015481565b005b60408051918252519081900360200190f35b6060908152602090f35b600160a060020a0383168260608381818185876185025a03f1925050501561015c57604080518381529051600160a060020a038516917f9735b0cb909f3d21d5c16bbcccd272d85fa11446f6d679f6ecb170d2dabfecfc919081900360200190a25060015b929150505660606040818152806101bc833960a090525160805160008054600160a060020a03191690921760a060020a60ff0219167401000000000000000000000000000000000000000090910217815561016290819061005a90396000f3606060405236156100405760e060020a60003504630221038a811461004d57806318bdc79a146100aa5780638da5cb5b146100be578063d2cc718f146100d0575b6100d96001805434019055565b6100db6004356024356000805433600160a060020a0390811691161415806100755750600034115b806100a05750805460a060020a900460ff1680156100a057508054600160a060020a03848116911614155b156100f757610002565b6100db60005460ff60a060020a9091041681565b6100ed600054600160a060020a031681565b6100db60015481565b005b60408051918252519081900360200190f35b6060908152602090f35b600160a060020a0383168260608381818185876185025a03f1925050501561015c57604080518381529051600160a060020a038516917f9735b0cb909f3d21d5c16bbcccd272d85fa11446f6d679f6ecb170d2dabfecfc919081900360200190a25060015b92915050566060604052361561020e5760e060020a6000350463013cf08b8114610247578063095ea7b3146102d05780630c3b7b96146103455780630e7082031461034e578063149acf9a1461036057806318160ddd146103725780631f2dc5ef1461037b57806321b5b8dd1461039b578063237e9492146103ad57806323b872dd1461040e5780632632bf2014610441578063341458081461047257806339d1f9081461047b5780634b6753bc146104935780634df6d6cc1461049c5780634e10c3ee146104b7578063590e1ae3146104ca578063612e45a3146104db578063643f7cdd1461057a578063674ed066146105925780636837ff1e1461059b57806370a08231146105e5578063749f98891461060b57806378524b2e1461062457806381f03fcb1461067e57806382661dc41461069657806382bf6464146106b75780638b15a605146106c9578063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- -// Proxy contract to whitelist interaction with: -// -// contract Proxy { -// address _dao; -// -// function Proxy(address dao) { -// _dao = dao; -// } -// function() { -// if (msg.value > 0) { -// _dao.call.value(msg.value)(); -// } else { -// _dao.call(bytes4(sha3("refund()"))); -// } -// } -// } -var proxyDeployCode = common.FromHex("606060405260405160208060dd83395060806040525160008054600160a060020a031916821790555060a98060346000396000f360606040523615600a575b60486000341115604a576000805473ffffffffffffffffffffffffffffffffffffffff1690349060609081818185876185025a03f1925050505060a7565b005b600080547f590e1ae300000000000000000000000000000000000000000000000000000000606090815273ffffffffffffffffffffffffffffffffffffffff9091169163590e1ae3916064919060048183876161da5a03f1505050505b56") - -// Tests that unannimous votes are handled correctly (i.e. the simple case). -func TestDAOForkUnanimousFail(t *testing.T) { testDAOUnanimousFork(t, false) } -func TestDAOForkUnanimousPass(t *testing.T) { testDAOUnanimousFork(t, true) } - -func testDAOUnanimousFork(t *testing.T, pass bool) { - // Reduce the test size to avoid wasting too much time - defer func(old uint64) { ruptureBlock = old }(ruptureBlock) - ruptureBlock = 128 - - defer func(old int) { ruptureCacheLimit = old }(ruptureCacheLimit) - ruptureCacheLimit = 256 - - // Depending on the tested outcome, set a high or a low gas limit - defer func(old *big.Int) { params.GenesisGasLimit = old }(params.GenesisGasLimit) - defer func(old *big.Int) { params.TargetGasLimit = old }(params.TargetGasLimit) - if pass { - params.GenesisGasLimit = new(big.Int).Add(ruptureThreshold, big.NewInt(-10)) - params.TargetGasLimit = new(big.Int).Add(ruptureThreshold, big.NewInt(-10)) - } else { - params.GenesisGasLimit = new(big.Int).Add(ruptureThreshold, big.NewInt(10)) - params.TargetGasLimit = new(big.Int).Add(ruptureThreshold, big.NewInt(10)) - } - // Create a test chain with a DAO instance deployed and attempt to transact with it - var ( - slockit, _ = crypto.HexToECDSA("49a7b37aa6f6645917e7b807e9d1c00d4fa71f18343b0d4122a4d2df64dd6fee") - black, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291") - white, _ = crypto.HexToECDSA("8a1f9a8f95be41cd7ccb6168179afb4504aefe388d1e14474d32c45c72ce7b7a") - slockitAddr = crypto.PubkeyToAddress(slockit.PublicKey) - blackAddr = crypto.PubkeyToAddress(black.PublicKey) - whiteAddr = crypto.PubkeyToAddress(white.PublicKey) - creatorAddr common.Address - daoAddr common.Address - blackProxy common.Address - whiteProxy common.Address - db, _ = ethdb.NewMemDatabase() - ) - genesis := WriteGenesisBlockForTesting(db, - GenesisAccount{slockitAddr, big.NewInt(1000000)}, - GenesisAccount{blackAddr, big.NewInt(1000000)}, - GenesisAccount{whiteAddr, big.NewInt(1000000)}, - ) - length := int(ruptureBlock) + 2*ruptureCacheLimit - chain, _ := GenerateChain(genesis, db, length, func(i int, gen *BlockGen) { - switch i { - case 0: - // Deploy the DAO creator in the first block - tx, _ := types.NewContractCreation(gen.TxNonce(slockitAddr), big.NewInt(1), params.GenesisGasLimit, new(big.Int), creatorDeployCode).SignECDSA(slockit) - gen.AddTx(tx) - creatorAddr = crypto.CreateAddress(slockitAddr, tx.Nonce()) - - case 1: - // Deploy the DAO in the second block - var args []byte - args = append(args, common.LeftPadBytes(slockitAddr.Bytes(), 32)...) // curator - args = append(args, common.LeftPadBytes(creatorAddr.Bytes(), 32)...) // daoCreator - args = append(args, common.LeftPadBytes([]byte{0}, 32)...) // proposalDeposit - args = append(args, common.LeftPadBytes([]byte{100}, 32)...) // minTokensToCreate - args = append(args, common.LeftPadBytes([]byte{100}, 32)...) // closingTime - args = append(args, common.LeftPadBytes([]byte{0}, 32)...) // privateCreation - - tx, _ := types.NewContractCreation(gen.TxNonce(slockitAddr), big.NewInt(0), params.GenesisGasLimit, new(big.Int), append(daoDeployCode, args...)).SignECDSA(slockit) - gen.AddTx(tx) - daoAddr = crypto.CreateAddress(slockitAddr, tx.Nonce()) - - case 2: - // Deploy the black and white hat proxy contracts - tx, _ := types.NewContractCreation(gen.TxNonce(blackAddr), big.NewInt(1), big.NewInt(1000000), new(big.Int), append(proxyDeployCode, common.LeftPadBytes(daoAddr.Bytes(), 32)...)).SignECDSA(black) - gen.AddTx(tx) - blackProxy = crypto.CreateAddress(blackAddr, tx.Nonce()) - - tx, _ = types.NewContractCreation(gen.TxNonce(whiteAddr), big.NewInt(1), big.NewInt(1000000), new(big.Int), append(proxyDeployCode, common.LeftPadBytes(daoAddr.Bytes(), 32)...)).SignECDSA(white) - gen.AddTx(tx) - whiteProxy = crypto.CreateAddress(whiteAddr, tx.Nonce()) - - ruptureWhitelist[whiteProxy] = true - - case 3: - // Fund the DAO with some funds, but not enough for successful creation - tx, _ := types.NewTransaction(gen.TxNonce(whiteAddr), whiteProxy, big.NewInt(2), big.NewInt(1000000), nil, nil).SignECDSA(white) - gen.AddTx(tx) - - tx, _ = types.NewTransaction(gen.TxNonce(blackAddr), blackProxy, big.NewInt(2), big.NewInt(1000000), nil, nil).SignECDSA(black) - gen.AddTx(tx) - - case length - 2: - // DAO creation failed by this time and forks are in effect; try retrieving whitelisted funds - tx, _ := types.NewTransaction(gen.TxNonce(whiteAddr), whiteProxy, big.NewInt(0), big.NewInt(1000000), nil, nil).SignECDSA(white) - gen.AddTx(tx) - - case length - 1: - // DAO creation failed by this time and forks are in effect; try retrieving blacklisted funds - tx, _ := types.NewTransaction(gen.TxNonce(blackAddr), blackProxy, big.NewInt(0), big.NewInt(1000000), nil, nil).SignECDSA(black) - gen.AddTx(tx) - } - }) - defer delete(ruptureWhitelist, whiteProxy) // This can't be done in the aboge generator sadly - - // Import the chain. This runs all block validation rules. - bc, _ := NewBlockChain(db, MakeChainConfig(), FakePow{}, new(event.TypeMux)) - n, err := bc.InsertChain(chain) - - // The chain should either succeed (no votes), or fail on the black address - if !pass { - if err != nil { - t.Errorf("block %d rejected on non forked chain: %v", n, err) - } - } else { - if n != length-1 || err != blockedCodeHashErr { - t.Errorf("failure mismatch: have %d:%v, want %d:%v", n, err, length-1, blockedCodeHashErr) - } - } - // Verify account balances to make sure transactions executd properly, not just the test is bugged - state, _ := bc.State() - if state.GetBalance(whiteProxy).Cmp(big.NewInt(3)) != 0 { // 1 init + 2 refund - t.Errorf("white proxy balance mismatch: have %v, want 3", state.GetBalance(whiteProxy)) - } - if !pass { - if state.GetBalance(blackProxy).Cmp(big.NewInt(3)) != 0 { // 1 init + 2 refund (fork refused) - t.Errorf("black proxy balance mismatch: have %v, want 3", state.GetBalance(blackProxy)) - } - if state.GetBalance(daoAddr).Cmp(big.NewInt(0)) != 0 { // all refunded (fork refused) - t.Errorf("dao balance mismatch: have %v, want 0", state.GetBalance(daoAddr)) - } - } else { - if state.GetBalance(blackProxy).Cmp(big.NewInt(1)) != 0 { // 1 init (refund refused due to fork) - t.Errorf("black proxy balance mismatch: have %v, want 1", state.GetBalance(blackProxy)) - } - if state.GetBalance(daoAddr).Cmp(big.NewInt(2)) != 0 { // 2 from black (refund refused due to fork) - t.Errorf("dao balance mismatch: have %v, want 2", state.GetBalance(daoAddr)) - } - } -} - -// Tests the unique corner case where miners don't cleanly decide on the outcome -// of the vote, rather -func TestDAOForkRaceyResolution(t *testing.T) { - // Reduce the test size to avoid wasting too much time - defer func(old uint64) { ruptureBlock = old }(ruptureBlock) - ruptureBlock = 128 - - defer func(old int) { ruptureCacheLimit = old }(ruptureCacheLimit) - ruptureCacheLimit = 256 - - // Set up the parameters of the test chain - var ( - slockit, _ = crypto.HexToECDSA("49a7b37aa6f6645917e7b807e9d1c00d4fa71f18343b0d4122a4d2df64dd6fee") - black, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291") - white, _ = crypto.HexToECDSA("8a1f9a8f95be41cd7ccb6168179afb4504aefe388d1e14474d32c45c72ce7b7a") - slockitAddr = crypto.PubkeyToAddress(slockit.PublicKey) - blackAddr = crypto.PubkeyToAddress(black.PublicKey) - whiteAddr = crypto.PubkeyToAddress(white.PublicKey) - creatorAddr common.Address - daoAddr common.Address - blackProxy common.Address - whiteProxy common.Address - db, _ = ethdb.NewMemDatabase() - ) - defer func(old *big.Int) { params.GenesisGasLimit = old }(params.GenesisGasLimit) - params.GenesisGasLimit = ruptureThreshold - - genesis := WriteGenesisBlockForTesting(db, - GenesisAccount{slockitAddr, big.NewInt(1000000)}, - GenesisAccount{blackAddr, big.NewInt(1000000)}, - GenesisAccount{whiteAddr, big.NewInt(1000000)}, - ) - // Generate a chain where the outcome for the fork proposal is pass - defer func(old *big.Int) { params.TargetGasLimit = old }(params.TargetGasLimit) - params.TargetGasLimit = new(big.Int).Add(ruptureThreshold, big.NewInt(-10)) - - length := int(ruptureBlock) + 2*ruptureCacheLimit - chainPass, _ := GenerateChain(genesis, db, length, func(i int, gen *BlockGen) { - switch i { - case 0: - // Deploy the DAO creator in the first block - tx, _ := types.NewContractCreation(gen.TxNonce(slockitAddr), big.NewInt(1), big.NewInt(3999980), new(big.Int), creatorDeployCode).SignECDSA(slockit) - gen.AddTx(tx) - creatorAddr = crypto.CreateAddress(slockitAddr, tx.Nonce()) - - case 1: - // Deploy the DAO in the second block - var args []byte - args = append(args, common.LeftPadBytes(slockitAddr.Bytes(), 32)...) // curator - args = append(args, common.LeftPadBytes(creatorAddr.Bytes(), 32)...) // daoCreator - args = append(args, common.LeftPadBytes([]byte{0}, 32)...) // proposalDeposit - args = append(args, common.LeftPadBytes([]byte{100}, 32)...) // minTokensToCreate - args = append(args, common.LeftPadBytes([]byte{100}, 32)...) // closingTime - args = append(args, common.LeftPadBytes([]byte{0}, 32)...) // privateCreation - - tx, _ := types.NewContractCreation(gen.TxNonce(slockitAddr), big.NewInt(0), big.NewInt(3999980), new(big.Int), append(daoDeployCode, args...)).SignECDSA(slockit) - gen.AddTx(tx) - daoAddr = crypto.CreateAddress(slockitAddr, tx.Nonce()) - - case 2: - // Deploy the black and white hat proxy contracts - tx, _ := types.NewContractCreation(gen.TxNonce(blackAddr), big.NewInt(1), big.NewInt(1000000), new(big.Int), append(proxyDeployCode, common.LeftPadBytes(daoAddr.Bytes(), 32)...)).SignECDSA(black) - gen.AddTx(tx) - blackProxy = crypto.CreateAddress(blackAddr, tx.Nonce()) - - tx, _ = types.NewContractCreation(gen.TxNonce(whiteAddr), big.NewInt(1), big.NewInt(1000000), new(big.Int), append(proxyDeployCode, common.LeftPadBytes(daoAddr.Bytes(), 32)...)).SignECDSA(white) - gen.AddTx(tx) - whiteProxy = crypto.CreateAddress(whiteAddr, tx.Nonce()) - - ruptureWhitelist[whiteProxy] = true - - case 3: - // Fund the DAO with some funds, but not enough for successful creation - tx, _ := types.NewTransaction(gen.TxNonce(whiteAddr), whiteProxy, big.NewInt(2), big.NewInt(1000000), nil, nil).SignECDSA(white) - gen.AddTx(tx) - - tx, _ = types.NewTransaction(gen.TxNonce(blackAddr), blackProxy, big.NewInt(2), big.NewInt(1000000), nil, nil).SignECDSA(black) - gen.AddTx(tx) - - case length - 2: - // DAO creation failed by this time and forks are in effect; try retrieving whitelisted funds - tx, _ := types.NewTransaction(gen.TxNonce(whiteAddr), whiteProxy, big.NewInt(0), big.NewInt(1000000), nil, nil).SignECDSA(white) - gen.AddTx(tx) - - case length - 1: - // DAO creation failed by this time and forks are in effect; try retrieving blacklisted funds - tx, _ := types.NewTransaction(gen.TxNonce(blackAddr), blackProxy, big.NewInt(0), big.NewInt(1000000), nil, nil).SignECDSA(black) - gen.AddTx(tx) - } - }) - // Generate a chain to work around the last bad block above - chainPassCont, _ := GenerateChain(chainPass[len(chainPass)-2], db, 3, func(i int, gen *BlockGen) {}) - - // Generate a fork of the chain where the outcome of the fork proposal is fail - params.TargetGasLimit = new(big.Int).Add(ruptureThreshold, big.NewInt(10)) - chainFail, _ := GenerateChain(chainPass[4], db, length-4, func(i int, gen *BlockGen) { // Start fro block #4 to reuse previous creation code - switch i { - case length - 4 - 2: - // DAO creation failed by this time and forks are in effect; try retrieving whitelisted funds - tx, _ := types.NewTransaction(gen.TxNonce(whiteAddr), whiteProxy, big.NewInt(0), big.NewInt(1000000), nil, nil).SignECDSA(white) - gen.AddTx(tx) - - case length - 4 - 1: - // DAO creation failed by this time and forks are in effect; try retrieving blacklisted funds - tx, _ := types.NewTransaction(gen.TxNonce(blackAddr), blackProxy, big.NewInt(0), big.NewInt(1000000), nil, nil).SignECDSA(black) - gen.AddTx(tx) - } - }) - defer delete(ruptureWhitelist, whiteProxy) // This can't be done in the aboge generator sadly - - // Import the chain where the vote passed - bc, _ := NewBlockChain(db, MakeChainConfig(), FakePow{}, new(event.TypeMux)) - - if n, err := bc.InsertChain(chainPass); n != length-1 || err != blockedCodeHashErr { - t.Fatalf("forked chain error mismatch: have %v/%v, want %v/%v", n, err, length-1, blockedCodeHashErr) - } - state, _ := bc.State() - if state.GetBalance(whiteProxy).Cmp(big.NewInt(3)) != 0 { // 1 init + 2 refund - t.Errorf("white proxy balance mismatch: have %v, want 3", state.GetBalance(whiteProxy)) - } - if state.GetBalance(blackProxy).Cmp(big.NewInt(1)) != 0 { // 1 init (no refund on the passing chain) - t.Errorf("black proxy balance mismatch: have %v, want 1", state.GetBalance(blackProxy)) - } - if state.GetBalance(daoAddr).Cmp(big.NewInt(2)) != 0 { // 2 from black (refund refused due to fork) - t.Errorf("dao balance mismatch: have %v, want 2", state.GetBalance(daoAddr)) - } - // Import the chain where the vote failed (longer than the passing with 1 block (dropped from the passing)) - if _, err := bc.InsertChain(chainFail); err != nil { - t.Fatalf("failed to import non-forked chain: %v", err) - } - state, _ = bc.State() - if state.GetBalance(whiteProxy).Cmp(big.NewInt(3)) != 0 { // 1 init + 2 refund - t.Errorf("white proxy balance mismatch: have %v, want 3", state.GetBalance(whiteProxy)) - } - if state.GetBalance(blackProxy).Cmp(big.NewInt(3)) != 0 { // 1 init + 2 refund (fork refused) - t.Errorf("black proxy balance mismatch: have %v, want 3", state.GetBalance(blackProxy)) - } - if state.GetBalance(daoAddr).Cmp(big.NewInt(0)) != 0 { // all refunded (fork refused) - t.Errorf("dao balance mismatch: have %v, want 0", state.GetBalance(daoAddr)) - } - // Try to import a bad block on theforked chain to make sure no cache screwes up - if _, err := bc.InsertChain(chainPass[len(chainPass)-2:]); err != blockedCodeHashErr { - t.Fatalf("forked chain error mismatch: have %v, want %v", err, blockedCodeHashErr) - } - // The balances must still be that of the failed chain - state, _ = bc.State() - if state.GetBalance(whiteProxy).Cmp(big.NewInt(3)) != 0 { // 1 init + 2 refund - t.Errorf("white proxy balance mismatch: have %v, want 3", state.GetBalance(whiteProxy)) - } - if state.GetBalance(blackProxy).Cmp(big.NewInt(3)) != 0 { // 1 init + 2 refund (fork refused) - t.Errorf("black proxy balance mismatch: have %v, want 3", state.GetBalance(blackProxy)) - } - if state.GetBalance(daoAddr).Cmp(big.NewInt(0)) != 0 { // all refunded (fork refused) - t.Errorf("dao balance mismatch: have %v, want 0", state.GetBalance(daoAddr)) - } - // Overrule the passing chain with fresh blocks - if _, err := bc.InsertChain(chainPassCont); err != nil { - t.Fatalf("failed to import forked chain continuation: %v", err) - } - // Balances must be switched over to the forked version - state, _ = bc.State() - if state.GetBalance(whiteProxy).Cmp(big.NewInt(3)) != 0 { // 1 init + 2 refund - t.Errorf("white proxy balance mismatch: have %v, want 3", state.GetBalance(whiteProxy)) - } - if state.GetBalance(blackProxy).Cmp(big.NewInt(1)) != 0 { // 1 init (no refund on the passing chain) - t.Errorf("black proxy balance mismatch: have %v, want 1", state.GetBalance(blackProxy)) - } - if state.GetBalance(daoAddr).Cmp(big.NewInt(2)) != 0 { // 2 from black (refund refused due to fork) - t.Errorf("dao balance mismatch: have %v, want 2", state.GetBalance(daoAddr)) - } -} diff --git a/core/execution.go b/core/execution.go index 7f4c64758..ec04f6140 100644 --- a/core/execution.go +++ b/core/execution.go @@ -149,9 +149,6 @@ func execDelegateCall(env vm.Environment, caller vm.ContractRef, originAddr, toA return nil, common.Address{}, vm.DepthError } - if value.Cmp(common.Big0) > 0 { - env.MarkCodeHash(env.Db().GetCodeHash(caller.Address())) - } snapshot := env.MakeSnapshot() var to vm.Account diff --git a/core/state_processor.go b/core/state_processor.go index 1e54eefa3..55c1301eb 100644 --- a/core/state_processor.go +++ b/core/state_processor.go @@ -32,20 +32,13 @@ import ( var ( big8 = big.NewInt(8) big32 = big.NewInt(32) - blockedCodeHashErr = errors.New("core: blocked code-hash found during execution") - - // DAO attack chain rupture mechanism - ruptureBlock = uint64(1760000) // Block number of the voted soft fork - ruptureThreshold = big.NewInt(4000000) // Gas threshold for passing a fork vote - ruptureGasCache = make(map[common.Hash]*big.Int) // Amount of gas in the point of rupture - ruptureCodeHashes = map[common.Hash]struct{}{ - common.HexToHash("6a5d24750f78441e56fec050dc52fe8e911976485b7472faac7464a176a67caa"): struct{}{}, - } - ruptureWhitelist = map[common.Address]bool{ + illegalCodeHashErr = errors.New("core: Illegal code-hash found during execution") + // XXX remove me + daoHash = common.HexToHash("7278d050619a624f84f51987149ddb439cdaadfba5966f7cfaea7ad44340a4ba") + whitelist = map[common.Address]bool{ common.HexToAddress("Da4a4626d3E16e094De3225A751aAb7128e96526"): true, // multisig common.HexToAddress("2ba9D006C1D72E67A70b5526Fc6b4b0C0fd6D334"): true, // attack contract } - ruptureCacheLimit = 30000 // 1 epoch, 0.5 per possible fork ) // StateProcessor is a basic Processor, which takes care of transitioning @@ -108,58 +101,14 @@ func ApplyTransaction(config *ChainConfig, bc *BlockChain, gp *GasPool, statedb return nil, nil, nil, err } - // Check whether the DAO needs to be blocked or not - if bc != nil { // Test chain maker uses nil to construct the potential chain - blockRuptureCodes := false - - if number := header.Number.Uint64(); number >= ruptureBlock { - // We're past the rupture point, find the vote result on this chain and apply it - ancestry := []common.Hash{header.Hash(), header.ParentHash} - for _, ok := ruptureGasCache[ancestry[len(ancestry)-1]]; !ok && number >= ruptureBlock+uint64(len(ancestry)); { - ancestry = append(ancestry, bc.GetHeaderByHash(ancestry[len(ancestry)-1]).ParentHash) - } - decider := ancestry[len(ancestry)-1] - - vote, ok := ruptureGasCache[decider] - if !ok { - // We've reached the rupture point, retrieve the vote - vote = bc.GetHeaderByHash(decider).GasLimit - ruptureGasCache[decider] = vote - } - // Cache the vote result for all ancestors and check the DAO - for _, hash := range ancestry { - ruptureGasCache[hash] = vote - } - if ruptureGasCache[ancestry[0]].Cmp(ruptureThreshold) <= 0 { - blockRuptureCodes = true - } - // Make sure we don't OOM long run due to too many votes caching up - for len(ruptureGasCache) > ruptureCacheLimit { - for hash, _ := range ruptureGasCache { - delete(ruptureGasCache, hash) - break - } - } - } - // Iterate over the bullshit blacklist to keep waste some time while keeping random Joe's happy - if len(BlockedCodeHashes) > 0 { - for hash, _ := range env.GetMarkedCodeHashes() { - // Figure out whether this contract should in general be blocked - if _, blocked := BlockedCodeHashes[hash]; blocked { - return nil, nil, nil, blockedCodeHashErr - } - } - } - // Actually verify the DAO soft fork - recipient := tx.To() - if blockRuptureCodes && (recipient == nil || !ruptureWhitelist[*recipient]) { - for hash, _ := range env.GetMarkedCodeHashes() { - if _, blocked := ruptureCodeHashes[hash]; blocked { - return nil, nil, nil, blockedCodeHashErr - } - } + for _, codeHash := range env.CodeHashes { + _, illegalHash := IllegalCodeHashes[codeHash] + to := tx.To() + if illegalHash && to != nil && !whitelist[*to] { + return nil, nil, nil, illegalCodeHashErr } } + // Update the state with pending changes usedGas.Add(usedGas, gas) receipt := types.NewReceipt(statedb.IntermediateRoot().Bytes(), usedGas) diff --git a/core/vm_env.go b/core/vm_env.go index 4692c14c4..1c1110280 100644 --- a/core/vm_env.go +++ b/core/vm_env.go @@ -25,9 +25,7 @@ import ( "github.com/ethereum/go-ethereum/core/vm" ) -// BlockedCodeHashes is a set of EVM code hashes that this node should block -// sending funds from. -var BlockedCodeHashes map[common.Hash]struct{} +var IllegalCodeHashes map[common.Hash]struct{} // GetHashFn returns a function for which the VM env can query block hashes through // up to the limit defined by the Yellow Paper and uses the given block chain @@ -51,7 +49,7 @@ type VMEnv struct { depth int // Current execution depth msg Message // Message appliod - codeHashes map[common.Hash]struct{} // code hashes collected during execution + CodeHashes []common.Hash // code hashes collected during execution header *types.Header // Header information chain *BlockChain // Blockchain handle @@ -62,7 +60,6 @@ type VMEnv struct { func NewEnv(state *state.StateDB, chainConfig *ChainConfig, chain *BlockChain, msg Message, header *types.Header, cfg vm.Config) *VMEnv { env := &VMEnv{ chainConfig: chainConfig, - codeHashes: make(map[common.Hash]struct{}), chain: chain, state: state, header: header, @@ -79,8 +76,7 @@ func NewEnv(state *state.StateDB, chainConfig *ChainConfig, chain *BlockChain, m return env } -func (self *VMEnv) MarkCodeHash(hash common.Hash) { self.codeHashes[hash] = struct{}{} } -func (self *VMEnv) GetMarkedCodeHashes() map[common.Hash]struct{} { return self.codeHashes } +func (self *VMEnv) MarkCodeHash(hash common.Hash) { self.CodeHashes = append(self.CodeHashes, hash) } func (self *VMEnv) RuleSet() vm.RuleSet { return self.chainConfig } func (self *VMEnv) Vm() vm.Vm { return self.evm } |