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core/vm: Move interpreter.ReadOnly check into the opcode implementations (#23970)

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* core/vm: Move interpreter.ReadOnly check into the opcode implementations

Also remove the same check from the interpreter inner loop.

* core/vm: Remove obsolete operation.writes flag

* core/vm: Capture fault states in logger

Co-authored-by: Martin Holst Swende <martin@swende.se>

* core/vm: Remove panic added for testing

Co-authored-by: Martin Holst Swende <martin@swende.se>
This commit is contained in:
Alex Beregszaszi
2021-12-01 10:21:21 +01:00
committed by GitHub
co-authored by Martin Holst Swende
parent 1988b47e02
commit 9393d1fb5d
4 changed files with 22 additions and 23 deletions
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core/vm/instructions.go
+18
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@@ -514,6 +514,9 @@ func opSload(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]by
}
func opSstore(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
if interpreter.readOnly {
return nil, ErrWriteProtection
}
loc := scope.Stack.pop()
val := scope.Stack.pop()
interpreter.evm.StateDB.SetState(scope.Contract.Address(),
@@ -561,6 +564,9 @@ func opGas(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte
}
func opCreate(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
if interpreter.readOnly {
return nil, ErrWriteProtection
}
var (
value = scope.Stack.pop()
offset, size = scope.Stack.pop(), scope.Stack.pop()
@@ -604,6 +610,9 @@ func opCreate(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]b
}
func opCreate2(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
if interpreter.readOnly {
return nil, ErrWriteProtection
}
var (
endowment = scope.Stack.pop()
offset, size = scope.Stack.pop(), scope.Stack.pop()
@@ -653,6 +662,9 @@ func opCall(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byt
// Get the arguments from the memory.
args := scope.Memory.GetPtr(int64(inOffset.Uint64()), int64(inSize.Uint64()))
if interpreter.readOnly && !value.IsZero() {
return nil, ErrWriteProtection
}
var bigVal = big0
//TODO: use uint256.Int instead of converting with toBig()
// By using big0 here, we save an alloc for the most common case (non-ether-transferring contract calls),
@@ -794,6 +806,9 @@ func opStop(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byt
}
func opSuicide(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
if interpreter.readOnly {
return nil, ErrWriteProtection
}
beneficiary := scope.Stack.pop()
balance := interpreter.evm.StateDB.GetBalance(scope.Contract.Address())
interpreter.evm.StateDB.AddBalance(beneficiary.Bytes20(), balance)
@@ -810,6 +825,9 @@ func opSuicide(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]
// make log instruction function
func makeLog(size int) executionFunc {
return func(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
if interpreter.readOnly {
return nil, ErrWriteProtection
}
topics := make([]common.Hash, size)
stack := scope.Stack
mStart, mSize := stack.pop(), stack.pop()