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Validate if gas limit is not zero (#8307)

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This commit is contained in:
Andronik Ordian 2018-04-04 18:14:59 +03:00 committed by Marek Kotewicz
parent d57944ffb9
commit 811d165458
2 changed files with 4 additions and 3 deletions
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4
ethcore/src/machine.rs
View File

@ -203,10 +203,11 @@ impl EthereumMachine {
/// The gas floor target must not be lower than the engine's minimum gas limit.
pub fn populate_from_parent(&self, header: &mut Header, parent: &Header, gas_floor_target: U256, gas_ceil_target: U256) {
header.set_difficulty(parent.difficulty().clone());
let gas_limit = parent.gas_limit().clone();
assert!(!gas_limit.is_zero(), "Gas limit should be > 0");
if let Some(ref ethash_params) = self.ethash_extensions {
let gas_limit = {
let gas_limit = parent.gas_limit().clone();
let bound_divisor = self.params().gas_limit_bound_divisor;
let lower_limit = gas_limit - gas_limit / bound_divisor + 1.into();
let upper_limit = gas_limit + gas_limit / bound_divisor - 1.into();
@ -238,7 +239,6 @@ impl EthereumMachine {
}
header.set_gas_limit({
let gas_limit = parent.gas_limit().clone();
let bound_divisor = self.params().gas_limit_bound_divisor;
if gas_limit < gas_floor_target {
cmp::min(gas_floor_target, gas_limit + gas_limit / bound_divisor - 1.into())

3
json/src/spec/genesis.rs
View File

@ -16,7 +16,7 @@
//! Spec genesis deserialization.
use uint::Uint;
use uint::{Uint, self};
use hash::{Address, H256};
use bytes::Bytes;
use spec::Seal;
@ -37,6 +37,7 @@ pub struct Genesis {
pub parent_hash: Option<H256>,
/// Gas limit.
#[serde(rename="gasLimit")]
#[serde(deserialize_with="uint::validate_non_zero")]
pub gas_limit: Uint,
/// Transactions root.
#[serde(rename="transactionsRoot")]