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core: add new eip-1559 tx constraints (#22970)

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This PR adds the new consensus constraints of EIP-1559 transactions as specified in https://github.com/ethereum/EIPs#3594
This commit is contained in:
Felföldi Zsolt
2021-05-30 19:37:52 +02:00
committed by GitHub
parent 966ee3ae6d
commit 2d716c4b01
5 changed files with 102 additions and 12 deletions
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22
core/state_transition.go
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@ -187,8 +187,14 @@ func (st *StateTransition) to() common.Address {
}
func (st *StateTransition) buyGas() error {
mgval := new(big.Int).Mul(new(big.Int).SetUint64(st.msg.Gas()), st.gasPrice)
if have, want := st.state.GetBalance(st.msg.From()), mgval; have.Cmp(want) < 0 {
mgval := new(big.Int).SetUint64(st.msg.Gas())
mgval = mgval.Mul(mgval, st.gasPrice)
balanceCheck := mgval
if st.feeCap != nil {
balanceCheck = new(big.Int).SetUint64(st.msg.Gas())
balanceCheck = balanceCheck.Mul(balanceCheck, st.feeCap)
}
if have, want := st.state.GetBalance(st.msg.From()), balanceCheck; have.Cmp(want) < 0 {
return fmt.Errorf("%w: address %v have %v want %v", ErrInsufficientFunds, st.msg.From().Hex(), have, want)
}
if err := st.gp.SubGas(st.msg.Gas()); err != nil {
@ -215,6 +221,18 @@ func (st *StateTransition) preCheck() error {
}
// Make sure that transaction feeCap is greater than the baseFee (post london)
if st.evm.ChainConfig().IsLondon(st.evm.Context.BlockNumber) {
if l := st.feeCap.BitLen(); l > 256 {
return fmt.Errorf("%w: address %v, feeCap bit length: %d", ErrFeeCapVeryHigh,
st.msg.From().Hex(), l)
}
if l := st.tip.BitLen(); l > 256 {
return fmt.Errorf("%w: address %v, tip bit length: %d", ErrTipVeryHigh,
st.msg.From().Hex(), l)
}
if st.feeCap.Cmp(st.tip) < 0 {
return fmt.Errorf("%w: address %v, tip: %s, feeCap: %s", ErrTipAboveFeeCap,
st.msg.From().Hex(), st.feeCap, st.tip)
}
// This will panic if baseFee is nil, but basefee presence is verified
// as part of header validation.
if st.feeCap.Cmp(st.evm.Context.BaseFee) < 0 {