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Revert "test, cmd/evm, core, core/vm: illegal code hash implementation"

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This reverts commit 7a5b571c671e70e0e4807cf971c15e2d1e09d33d.
This commit is contained in:
Péter Szilágyi 2016-06-29 11:44:51 +03:00
parent d55fc35df1
commit 6362a9d610
11 changed files with 29 additions and 95 deletions
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1
cmd/evm/main.go
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@ -220,7 +220,6 @@ type ruleSet struct{}
func (ruleSet) IsHomestead(*big.Int) bool { return true }
func (self *VMEnv) MarkCodeHash(common.Hash) {}
func (self *VMEnv) RuleSet() vm.RuleSet { return ruleSet{} }
func (self *VMEnv) Vm() vm.Vm { return self.evm }
func (self *VMEnv) Db() vm.Database { return self.state }

16
cmd/utils/flags.go
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@ -163,10 +163,6 @@ var (
}
// Miner settings
// TODO: refactor CPU vs GPU mining flags
IllegalCodeHashesFlag = cli.StringFlag{
Name: "illegal-code-hashes",
Usage: "Comma separated list of code-hashes to ignore any interaction from",
}
MiningEnabledFlag = cli.BoolFlag{
Name: "mine",
Usage: "Enable mining",
@ -644,16 +640,6 @@ func MakePasswordList(ctx *cli.Context) []string {
return lines
}
// ParseIllegalCodeHashes parses a comma separated list of hashes.
func ParseIllegalCodeHashes(ctx *cli.Context) map[common.Hash]struct{} {
splittedHexHashes := strings.Split(ctx.GlobalString(IllegalCodeHashesFlag.Name), ",")
illegalCodeHashes := make(map[common.Hash]struct{})
for _, hexHash := range splittedHexHashes {
illegalCodeHashes[common.HexToHash(strings.TrimSpace(hexHash))] = struct{}{}
}
return illegalCodeHashes
}
// MakeSystemNode sets up a local node, configures the services to launch and
// assembles the P2P protocol stack.
func MakeSystemNode(name, version string, relconf release.Config, extra []byte, ctx *cli.Context) *node.Node {
@ -690,8 +676,6 @@ func MakeSystemNode(name, version string, relconf release.Config, extra []byte,
}
// Configure the Ethereum service
accman := MakeAccountManager(ctx)
// parse the illegal code hashes and set them to the core package.
core.IllegalCodeHashes = ParseIllegalCodeHashes(ctx)
// initialise new random number generator
rand := rand.New(rand.NewSource(time.Now().UnixNano()))

5
core/execution.go
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@ -85,11 +85,6 @@ func exec(env vm.Environment, caller vm.ContractRef, address, codeAddr *common.A
createAccount = true
}
// mark the code hash if the execution is a call, callcode or delegate.
if value.Cmp(common.Big0) > 0 {
env.MarkCodeHash(env.Db().GetCodeHash(caller.Address()))
}
snapshotPreTransfer := env.MakeSnapshot()
var (
from = env.Db().GetAccount(caller.Address())

10
core/state/statedb.go
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@ -51,8 +51,6 @@ type StateDB struct {
txIndex int
logs map[common.Hash]vm.Logs
logSize uint
reducedDao bool
}
// Create a new state from a given trie
@ -163,14 +161,6 @@ func (self *StateDB) GetCode(addr common.Address) []byte {
return nil
}
func (self *StateDB) GetCodeHash(addr common.Address) common.Hash {
stateObject := self.GetStateObject(addr)
if stateObject != nil {
return common.BytesToHash(stateObject.codeHash)
}
return common.Hash{}
}
func (self *StateDB) GetState(a common.Address, b common.Hash) common.Hash {
stateObject := self.GetStateObject(a)
if stateObject != nil {

24
core/state_processor.go
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@ -17,10 +17,8 @@
package core
import (
"errors"
"math/big"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
@ -30,15 +28,8 @@ import (
)
var (
big8 = big.NewInt(8)
big32 = big.NewInt(32)
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
}
big8 = big.NewInt(8)
big32 = big.NewInt(32)
)
// StateProcessor is a basic Processor, which takes care of transitioning
@ -95,20 +86,11 @@ func (p *StateProcessor) Process(block *types.Block, statedb *state.StateDB, cfg
// ApplyTransactions returns the generated receipts and vm logs during the
// execution of the state transition phase.
func ApplyTransaction(config *ChainConfig, bc *BlockChain, gp *GasPool, statedb *state.StateDB, header *types.Header, tx *types.Transaction, usedGas *big.Int, cfg vm.Config) (*types.Receipt, vm.Logs, *big.Int, error) {
env := NewEnv(statedb, config, bc, tx, header, cfg)
_, gas, err := ApplyMessage(env, tx, gp)
_, gas, err := ApplyMessage(NewEnv(statedb, config, bc, tx, header, cfg), tx, gp)
if err != nil {
return nil, nil, nil, err
}
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)

3
core/vm/environment.go
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@ -73,8 +73,6 @@ type Environment interface {
DelegateCall(me ContractRef, addr common.Address, data []byte, gas, price *big.Int) ([]byte, error)
// Create a new contract
Create(me ContractRef, data []byte, gas, price, value *big.Int) ([]byte, common.Address, error)
// Mark the code hash that was executed
MarkCodeHash(hash common.Hash)
}
// Vm is the basic interface for an implementation of the EVM.
@ -98,7 +96,6 @@ type Database interface {
GetCode(common.Address) []byte
SetCode(common.Address, []byte)
GetCodeHash(common.Address) common.Hash
AddRefund(*big.Int)
GetRefund() *big.Int

9
core/vm/jit_test.go
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@ -175,11 +175,10 @@ func NewEnv(noJit, forceJit bool) *Env {
return env
}
func (self *Env) MarkCodeHash(common.Hash) {}
func (self *Env) RuleSet() RuleSet { return ruleSet{new(big.Int)} }
func (self *Env) Vm() Vm { return self.evm }
func (self *Env) Origin() common.Address { return common.Address{} }
func (self *Env) BlockNumber() *big.Int { return big.NewInt(0) }
func (self *Env) RuleSet() RuleSet { return ruleSet{new(big.Int)} }
func (self *Env) Vm() Vm { return self.evm }
func (self *Env) Origin() common.Address { return common.Address{} }
func (self *Env) BlockNumber() *big.Int { return big.NewInt(0) }
func (self *Env) AddStructLog(log StructLog) {
}
func (self *Env) StructLogs() []StructLog {

26
core/vm/runtime/env.go
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@ -27,10 +27,9 @@ import (
// Env is a basic runtime environment required for running the EVM.
type Env struct {
ruleSet vm.RuleSet
depth int
state *state.StateDB
illegalHashes []common.Hash
ruleSet vm.RuleSet
depth int
state *state.StateDB
origin common.Address
coinbase common.Address
@ -50,15 +49,14 @@ type Env struct {
// NewEnv returns a new vm.Environment
func NewEnv(cfg *Config, state *state.StateDB) vm.Environment {
env := &Env{
ruleSet: cfg.RuleSet,
illegalHashes: cfg.illegalHashes,
state: state,
origin: cfg.Origin,
coinbase: cfg.Coinbase,
number: cfg.BlockNumber,
time: cfg.Time,
difficulty: cfg.Difficulty,
gasLimit: cfg.GasLimit,
ruleSet: cfg.RuleSet,
state: state,
origin: cfg.Origin,
coinbase: cfg.Coinbase,
number: cfg.BlockNumber,
time: cfg.Time,
difficulty: cfg.Difficulty,
gasLimit: cfg.GasLimit,
}
env.evm = vm.New(env, vm.Config{
Debug: cfg.Debug,
@ -81,8 +79,6 @@ func (self *Env) AddStructLog(log vm.StructLog) {
self.logs = append(self.logs, log)
}
func (self *Env) MarkCodeHash(hash common.Hash) {}
func (self *Env) RuleSet() vm.RuleSet { return self.ruleSet }
func (self *Env) Vm() vm.Vm { return self.evm }
func (self *Env) Origin() common.Address { return self.origin }

23
core/vm/runtime/runtime.go
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@ -35,18 +35,17 @@ func (ruleSet) IsHomestead(*big.Int) bool { return true }
// Config is a basic type specifying certain configuration flags for running
// the EVM.
type Config struct {
RuleSet vm.RuleSet
Difficulty *big.Int
Origin common.Address
Coinbase common.Address
BlockNumber *big.Int
Time *big.Int
GasLimit *big.Int
GasPrice *big.Int
Value *big.Int
DisableJit bool // "disable" so it's enabled by default
Debug bool
illegalHashes []common.Hash
RuleSet vm.RuleSet
Difficulty *big.Int
Origin common.Address
Coinbase common.Address
BlockNumber *big.Int
Time *big.Int
GasLimit *big.Int
GasPrice *big.Int
Value *big.Int
DisableJit bool // "disable" so it's enabled by default
Debug bool
State *state.StateDB
GetHashFn func(n uint64) common.Hash

6
core/vm_env.go
View File

@ -25,8 +25,6 @@ import (
"github.com/ethereum/go-ethereum/core/vm"
)
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
// to query for information.
@ -49,8 +47,6 @@ type VMEnv struct {
depth int // Current execution depth
msg Message // Message appliod
CodeHashes []common.Hash // code hashes collected during execution
header *types.Header // Header information
chain *BlockChain // Blockchain handle
logs []vm.StructLog // Logs for the custom structured logger
@ -76,8 +72,6 @@ func NewEnv(state *state.StateDB, chainConfig *ChainConfig, chain *BlockChain, m
return env
}
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 }
func (self *VMEnv) Origin() common.Address { f, _ := self.msg.From(); return f }

1
tests/util.go
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@ -207,7 +207,6 @@ func NewEnvFromMap(ruleSet RuleSet, state *state.StateDB, envValues map[string]s
return env
}
func (self *Env) MarkCodeHash(common.Hash) {}
func (self *Env) RuleSet() vm.RuleSet { return self.ruleSet }
func (self *Env) Vm() vm.Vm { return self.evm }
func (self *Env) Origin() common.Address { return self.origin }