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Expanse compatibility (#2369)

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* Add support for Expanse.

* Fix build.

* Refactor to be able to alter the eth subprotocol name

* Fix JSON.

* Support exp hardfork.

* Fix exp json again.

* Fixed test

* Fix tests.
This commit is contained in:
Gav Wood
2016-09-28 14:21:59 +02:00
committed by GitHub
parent fb92a98451
commit 15a14a5f49
15 changed files with 190 additions and 45 deletions
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69
ethcore/res/ethereum/expanse.json Normal file
View File

@@ -0,0 +1,69 @@
{
"name": "Expanse",
"forkName": "expanse",
"engine": {
"Ethash": {
"params": {
"gasLimitBoundDivisor": "0x0400",
"minimumDifficulty": "0x020000",
"difficultyBoundDivisor": "0x0800",
"difficultyIncrementDivisor": "60",
"durationLimit": "0x3C",
"blockReward": "0x6f05b59d3b200000",
"registrar" : "0x6c221ca53705f3497ec90ca7b84c59ae7382fc21",
"frontierCompatibilityModeLimit": "0x30d40",
"difficultyHardforkTransition": "0x59d9",
"difficultyHardforkBoundDivisor": "0x0200",
"bombDefuseTransition": "0x30d40"
}
}
},
"params": {
"accountStartNonce": "0x00",
"maximumExtraDataSize": "0x20",
"minGasLimit": "0x1388",
"networkID": "0x1",
"subprotocolName": "exp"
},
"genesis": {
"seal": {
"ethereum": {
"nonce": "0x214652414e4b4f21",
"mixHash": "0x0000000000000000000000000000000000000000000000000000000000000000"
}
},
"difficulty": "0x40000000",
"author": "0x93decab0cd745598860f782ac1e8f046cb99e898",
"timestamp": "0x00",
"parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
"extraData": "0x4672616e6b6f497346726565646f6d",
"gasLimit": "0x1388"
},
"nodes": [
"enode://7f335a047654f3e70d6f91312a7cf89c39704011f1a584e2698250db3d63817e74b88e26b7854111e16b2c9d0c7173c05419aeee2d0321850227b126d8b1be3f@46.101.156.249:42786",
"enode://df872f81e25f72356152b44cab662caf1f2e57c3a156ecd20e9ac9246272af68a2031b4239a0bc831f2c6ab34733a041464d46b3ea36dce88d6c11714446e06b@178.62.208.109:42786",
"enode://96d3919b903e7f5ad59ac2f73c43be9172d9d27e2771355db03fd194732b795829a31fe2ea6de109d0804786c39a807e155f065b4b94c6fce167becd0ac02383@45.55.22.34:42786",
"enode://5f6c625bf287e3c08aad568de42d868781e961cbda805c8397cfb7be97e229419bef9a5a25a75f97632787106bba8a7caf9060fab3887ad2cfbeb182ab0f433f@46.101.182.53:42786",
"enode://d33a8d4c2c38a08971ed975b750f21d54c927c0bf7415931e214465a8d01651ecffe4401e1db913f398383381413c78105656d665d83f385244ab302d6138414@128.199.183.48:42786",
"enode://df872f81e25f72356152b44cab662caf1f2e57c3a156ecd20e9ac9246272af68a2031b4239a0bc831f2c6ab34733a041464d46b3ea36dce88d6c11714446e06b@178.62.208.109:42786",
"enode://f6f0d6b9b7d02ec9e8e4a16e38675f3621ea5e69860c739a65c1597ca28aefb3cec7a6d84e471ac927d42a1b64c1cbdefad75e7ce8872d57548ddcece20afdd1@159.203.64.95:42786"
],
"accounts": {
"0000000000000000000000000000000000000001": { "builtin": { "name": "ecrecover", "pricing": { "linear": { "base": 3000, "word": 0 } } } },
"0000000000000000000000000000000000000002": { "builtin": { "name": "sha256", "pricing": { "linear": { "base": 60, "word": 12 } } } },
"0000000000000000000000000000000000000003": { "builtin": { "name": "ripemd160", "pricing": { "linear": { "base": 600, "word": 120 } } } },
"0000000000000000000000000000000000000004": { "builtin": { "name": "identity", "pricing": { "linear": { "base": 15, "word": 3 } } } },
"bb94f0ceb32257275b2a7a9c094c13e469b4563e": {
"balance": "10000000000000000000000000"
},
"15656715068ab0dbdf0ab00748a8a19e40f28192": {
"balance": "1000000000000000000000000"
},
"c075fa11f85bda3aaba67106226aaf086ac16f4e": {
"balance": "100000000000000000000000"
},
"93decab0cd745598860f782ac1e8f046cb99e898": {
"balance": "10000000000000000000000"
}
}
}

3
ethcore/res/ethereum/frontier.json
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@@ -157,6 +157,9 @@
"stateRoot": "0xd7f8974fb5ac78d9ac099b9ad5018bedc2ce0a72dad1827a1709da30580f0544"
},
"nodes": [
"enode://cd6611461840543d5b9c56fbf088736154c699c43973b3a1a32390cf27106f87e58a818a606ccb05f3866de95a4fe860786fea71bf891ea95f234480d3022aa3@136.243.154.245:30303",
"enode://bcc7240543fe2cf86f5e9093d05753dd83343f8fda7bf0e833f65985c73afccf8f981301e13ef49c4804491eab043647374df1c4adf85766af88a624ecc3330e@136.243.154.244:30303",
"enode://ed4227681ca8c70beb2277b9e870353a9693f12e7c548c35df6bca6a956934d6f659999c2decb31f75ce217822eefca149ace914f1cbe461ed5a2ebaf9501455@88.212.206.70:30303",
"enode://a979fb575495b8d6db44f750317d0f4622bf4c2aa3365d6af7c284339968eef29b69ad0dce72a4d8db5ebb4968de0e3bec910127f134779fbcb0cb6d3331163c@52.16.188.185:30303",
"enode://de471bccee3d042261d52e9bff31458daecc406142b401d4cd848f677479f73104b9fdeb090af9583d3391b7f10cb2ba9e26865dd5fca4fcdc0fb1e3b723c786@54.94.239.50:30303",
"enode://1118980bf48b0a3640bdba04e0fe78b1add18e1cd99bf22d53daac1fd9972ad650df52176e7c7d89d1114cfef2bc23a2959aa54998a46afcf7d91809f0855082@52.74.57.123:30303",

32
ethcore/src/ethereum/ethash.rs
View File

@@ -32,6 +32,8 @@ pub struct EthashParams {
pub minimum_difficulty: U256,
/// Difficulty bound divisor.
pub difficulty_bound_divisor: U256,
/// Difficulty increment divisor.
pub difficulty_increment_divisor: u64,
/// Block duration.
pub duration_limit: u64,
/// Block reward.
@@ -46,6 +48,12 @@ pub struct EthashParams {
pub dao_hardfork_beneficiary: Address,
/// DAO hard-fork DAO accounts list (L)
pub dao_hardfork_accounts: Vec<Address>,
/// Transition block for a change of difficulty params (currently just bound_divisor).
pub difficulty_hardfork_transition: u64,
/// Difficulty param after the difficulty transition.
pub difficulty_hardfork_bound_divisor: U256,
/// Block on which there is no additional difficulty from the exponential bomb.
pub bomb_defuse_transition: u64,
}
impl From<ethjson::spec::EthashParams> for EthashParams {
@@ -54,6 +62,7 @@ impl From<ethjson::spec::EthashParams> for EthashParams {
gas_limit_bound_divisor: p.gas_limit_bound_divisor.into(),
minimum_difficulty: p.minimum_difficulty.into(),
difficulty_bound_divisor: p.difficulty_bound_divisor.into(),
difficulty_increment_divisor: p.difficulty_increment_divisor.map_or(10, Into::into),
duration_limit: p.duration_limit.into(),
block_reward: p.block_reward.into(),
registrar: p.registrar.map_or_else(Address::new, Into::into),
@@ -61,6 +70,9 @@ impl From<ethjson::spec::EthashParams> for EthashParams {
dao_hardfork_transition: p.dao_hardfork_transition.map_or(0x7fffffffffffffff, Into::into),
dao_hardfork_beneficiary: p.dao_hardfork_beneficiary.map_or_else(Address::new, Into::into),
dao_hardfork_accounts: p.dao_hardfork_accounts.unwrap_or_else(Vec::new).into_iter().map(Into::into).collect(),
difficulty_hardfork_transition: p.difficulty_hardfork_transition.map_or(0x7fffffffffffffff, Into::into),
difficulty_hardfork_bound_divisor: p.difficulty_hardfork_bound_divisor.map_or(p.difficulty_bound_divisor.into(), Into::into),
bomb_defuse_transition: p.bomb_defuse_transition.map_or(0x7fffffffffffffff, Into::into),
}
}
}
@@ -267,7 +279,11 @@ impl Ethash {
}
let min_difficulty = self.ethash_params.minimum_difficulty;
let difficulty_bound_divisor = self.ethash_params.difficulty_bound_divisor;
let difficulty_hardfork = header.number() >= self.ethash_params.difficulty_hardfork_transition;
let difficulty_bound_divisor = match difficulty_hardfork {
true => self.ethash_params.difficulty_hardfork_bound_divisor,
false => self.ethash_params.difficulty_bound_divisor,
};
let duration_limit = self.ethash_params.duration_limit;
let frontier_limit = self.ethash_params.frontier_compatibility_mode_limit;
@@ -281,17 +297,19 @@ impl Ethash {
else {
trace!(target: "ethash", "Calculating difficulty parent.difficulty={}, header.timestamp={}, parent.timestamp={}", parent.difficulty(), header.timestamp(), parent.timestamp());
//block_diff = parent_diff + parent_diff // 2048 * max(1 - (block_timestamp - parent_timestamp) // 10, -99)
let diff_inc = (header.timestamp() - parent.timestamp()) / 10;
let diff_inc = (header.timestamp() - parent.timestamp()) / self.ethash_params.difficulty_increment_divisor;
if diff_inc <= 1 {
parent.difficulty().clone() + parent.difficulty().clone() / From::from(2048) * From::from(1 - diff_inc)
parent.difficulty().clone() + parent.difficulty().clone() / From::from(difficulty_bound_divisor) * From::from(1 - diff_inc)
} else {
parent.difficulty().clone() - parent.difficulty().clone() / From::from(2048) * From::from(min(diff_inc - 1, 99))
parent.difficulty().clone() - parent.difficulty().clone() / From::from(difficulty_bound_divisor) * From::from(min(diff_inc - 1, 99))
}
};
target = max(min_difficulty, target);
let period = ((parent.number() + 1) / EXP_DIFF_PERIOD) as usize;
if period > 1 {
target = max(min_difficulty, target + (U256::from(1) << (period - 2)));
if header.number() < self.ethash_params.bomb_defuse_transition {
let period = ((parent.number() + 1) / EXP_DIFF_PERIOD) as usize;
if period > 1 {
target = max(min_difficulty, target + (U256::from(1) << (period - 2)));
}
}
target
}

3
ethcore/src/ethereum/mod.rs
View File

@@ -42,6 +42,9 @@ pub fn new_frontier() -> Spec { load(include_bytes!("../../res/ethereum/frontier
/// Create a new Frontier mainnet chain spec without the DAO hardfork.
pub fn new_classic() -> Spec { load(include_bytes!("../../res/ethereum/classic.json")) }
/// Create a new Frontier mainnet chain spec without the DAO hardfork.
pub fn new_expanse() -> Spec { load(include_bytes!("../../res/ethereum/expanse.json")) }
/// Create a new Frontier chain spec as though it never changes to Homestead.
pub fn new_frontier_test() -> Spec { load(include_bytes!("../../res/ethereum/frontier_test.json")) }

12
ethcore/src/spec/spec.rs
View File

@@ -37,6 +37,8 @@ pub struct CommonParams {
pub maximum_extra_data_size: usize,
/// Network id.
pub network_id: U256,
/// Main subprotocol name.
pub subprotocol_name: String,
/// Minimum gas limit.
pub min_gas_limit: U256,
/// Fork block to check.
@@ -49,6 +51,7 @@ impl From<ethjson::spec::Params> for CommonParams {
account_start_nonce: p.account_start_nonce.into(),
maximum_extra_data_size: p.maximum_extra_data_size.into(),
network_id: p.network_id.into(),
subprotocol_name: p.subprotocol_name.unwrap_or_else(|| "eth".to_owned()),
min_gas_limit: p.min_gas_limit.into(),
fork_block: if let (Some(n), Some(h)) = (p.fork_block, p.fork_hash) { Some((n.into(), h.into())) } else { None },
}
@@ -156,6 +159,9 @@ impl Spec {
/// Get the configured Network ID.
pub fn network_id(&self) -> U256 { self.params.network_id }
/// Get the configured Network ID.
pub fn subprotocol_name(&self) -> String { self.params.subprotocol_name.clone() }
/// Get the configured network fork block.
pub fn fork_block(&self) -> Option<(BlockNumber, H256)> { self.params.fork_block }
@@ -169,7 +175,7 @@ impl Spec {
header.set_transactions_root(self.transactions_root.clone());
header.set_uncles_hash(RlpStream::new_list(0).out().sha3());
header.set_extra_data(self.extra_data.clone());
header.set_state_root(self.state_root().clone());
header.set_state_root(self.state_root());
header.set_receipts_root(self.receipts_root.clone());
header.set_log_bloom(H2048::new().clone());
header.set_gas_used(self.gas_used.clone());
@@ -184,6 +190,7 @@ impl Spec {
let r = Rlp::new(&seal);
(0..self.seal_fields).map(|i| r.at(i).as_raw().to_vec()).collect()
});
trace!(target: "spec", "Header hash is {}", header.hash());
header
}
@@ -229,13 +236,16 @@ impl Spec {
/// Ensure that the given state DB has the trie nodes in for the genesis state.
pub fn ensure_db_good(&self, db: &mut StateDB) -> Result<bool, Box<TrieError>> {
if !db.as_hashdb().contains(&self.state_root()) {
trace!(target: "spec", "ensure_db_good: Fresh database? Cannot find state root {}", self.state_root());
let mut root = H256::new();
{
let mut t = SecTrieDBMut::new(db.as_hashdb_mut(), &mut root);
for (address, account) in self.genesis_state.get().iter() {
try!(t.insert(&**address, &account.rlp()));
}
}
trace!(target: "spec", "ensure_db_good: Populated sec trie; root is {}", root);
for (address, account) in self.genesis_state.get().iter() {
account.insert_additional(&mut AccountDBMut::new(db.as_hashdb_mut(), address));
}