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Morden genesis tested and working.

This commit is contained in:
Gav Wood 2016-01-07 19:10:29 +01:00
parent f9b3e26934
commit 810bff1ea9
6 changed files with 132 additions and 32 deletions
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34
res/morden.json Normal file
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@ -0,0 +1,34 @@
{
"engineName": "Ethash",
"params": {
"accountStartNonce": "0x0100000",
"frontierCompatibilityModeLimit": "0xfffa2990",
"maximumExtraDataSize": "0x20",
"tieBreakingGas": false,
"minGasLimit": "0x1388",
"gasLimitBoundDivisor": "0x0400",
"minimumDifficulty": "0x020000",
"difficultyBoundDivisor": "0x0800",
"durationLimit": "0x0d",
"blockReward": "0x4563918244F40000",
"registrar": "",
"networkID" : "0x2"
},
"genesis": {
"nonce": "0x00006d6f7264656e",
"difficulty": "0x20000",
"mixHash": "0x00000000000000000000000000000000000000647572616c65787365646c6578",
"author": "0x0000000000000000000000000000000000000000",
"timestamp": "0x00",
"parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
"extraData": "0x",
"gasLimit": "0x2fefd8"
},
"accounts": {
"0000000000000000000000000000000000000001": { "balance": "1", "nonce": "1048576", "builtin": { "name": "ecrecover", "linear": { "base": 3000, "word": 0 } } },
"0000000000000000000000000000000000000002": { "balance": "1", "nonce": "1048576", "builtin": { "name": "sha256", "linear": { "base": 60, "word": 12 } } },
"0000000000000000000000000000000000000003": { "balance": "1", "nonce": "1048576", "builtin": { "name": "ripemd160", "linear": { "base": 600, "word": 120 } } },
"0000000000000000000000000000000000000004": { "balance": "1", "nonce": "1048576", "builtin": { "name": "identity", "linear": { "base": 15, "word": 3 } } },
"102e61f5d8f9bc71d0ad4a084df4e65e05ce0e1c": { "balance": "1606938044258990275541962092341162602522202993782792835301376", "nonce": "1048576" }
}
}

2
src/blockchain.rs
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@ -99,7 +99,7 @@ impl BlockChain {
///
/// let bc = BlockChain::new(genesis.block(), &dir);
///
/// let genesis_hash = "d4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3";
/// let genesis_hash = "347db3ae87cf4703f948676de5858af1a2a336cbe2e6e56c5041dd80bed3071f";
/// assert_eq!(bc.genesis_hash(), H256::from_str(genesis_hash).unwrap());
/// assert!(bc.is_known(&bc.genesis_hash()));
/// assert_eq!(bc.genesis_hash(), bc.block_hash(&U256::from(0u8)).unwrap());

27
src/builtin.rs
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@ -1,6 +1,8 @@
use std::cmp::min;
use std::fmt;
use util::uint::*;
use rustc_serialize::json::Json;
//use crypto::recover;
/// Definition of a contract whose implementation is built-in.
pub struct Builtin {
@ -11,6 +13,12 @@ pub struct Builtin {
pub execute: Box<Fn(&[u8], &mut [u8])>,
}
impl fmt::Debug for Builtin {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "<Builtin>")
}
}
impl Builtin {
/// Create a new object from components.
pub fn new(cost: Box<Fn(usize) -> U256>, execute: Box<Fn(&[u8], &mut [u8])>) -> Builtin {
@ -99,6 +107,25 @@ pub fn new_builtin_exec(name: &str) -> Option<Box<Fn(&[u8], &mut [u8])>> {
}
})),
"ecrecover" => Some(Box::new(move|_input: &[u8], _output: &mut[u8]| {
/* #[repr(packed)]
struct InType {
hash: H256,
v: H256,
r: H256,
s: H256,
}
let it: InType = InType { hash: H256::new(), v: H256::new(), r: H256::new(), s: H256::new() };
unsafe {
transmute()
}
let hash = H256::from_slice(input[0..32]);
let v = H256::from_slice(input[32..64]);
let r = H256::from_slice(input[64..96]);
let s = H256::from_slice(input[96..128]);
if v == U256::from(27).hash() || v == U256::from(28).hash() {
v[31]
}
recover()*/
unimplemented!();
})),
"sha256" => Some(Box::new(move|_input: &[u8], _output: &mut[u8]| {

2
src/genesis.rs
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@ -118,6 +118,6 @@ fn test_genesis() {
let g = Genesis::new_frontier();
let view = BlockView::new(&g.block).header_view();
let genesis_hash = H256::from_str("d4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3").unwrap();
let genesis_hash = H256::from_str("347db3ae87cf4703f948676de5858af1a2a336cbe2e6e56c5041dd80bed3071f").unwrap();
assert_eq!(view.sha3(), genesis_hash);
}

22
src/header.rs
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@ -117,6 +117,28 @@ impl Encodable for Header {
})
}
}
/*
trait RlpStandard {
fn append(&self, s: &mut RlpStream);
}
impl RlpStandard for Header {
fn append(&self, s: &mut RlpStream) {
s.append_list(13);
s.append(self.parent_hash);
s.append_raw(self.seal[0]);
s.append_standard(self.x);
}
fn populate(&mut self, s: &Rlp) {
}
}
impl RlpStream {
fn append_standard<O>(&mut self, o: &O) where O: RlpStandard {
o.append(self);
}
}
*/
#[cfg(test)]
mod tests {

77
src/spec.rs
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@ -21,7 +21,7 @@ use denominations::*;
use header::*;
/// Converts file from base64 gzipped bytes to json
pub fn base_to_json(source: &[u8]) -> Json {
pub fn gzip64res_to_json(source: &[u8]) -> Json {
// there is probably no need to store genesis in based64 gzip,
// but that's what go does, and it was easy to load it this way
let data = source.from_base64().expect("Genesis block is malformed!");
@ -36,9 +36,10 @@ pub fn base_to_json(source: &[u8]) -> Json {
// TODO: handle container types.
fn json_to_rlp(json: &Json) -> Bytes {
match json {
&Json::Boolean(o) => encode(&(if o {1u64} else {0})),
&Json::I64(o) => encode(&(o as u64)),
&Json::U64(o) => encode(&o),
&Json::String(ref s) if &s[0..2] == "0x" && U256::from_str(&s[2..]).is_ok() => {
&Json::String(ref s) if s.len() >= 2 && &s[0..2] == "0x" && U256::from_str(&s[2..]).is_ok() => {
encode(&U256::from_str(&s[2..]).unwrap())
},
&Json::String(ref s) => {
@ -58,6 +59,7 @@ fn json_to_rlp_map(json: &Json) -> HashMap<String, Bytes> {
/// Parameters for a block chain; includes both those intrinsic to the design of the
/// chain and those to be interpreted by the active chain engine.
#[derive(Debug)]
pub struct Spec {
// What engine are we using for this?
pub engine_name: String,
@ -140,9 +142,7 @@ impl Spec {
ret.append_raw(&empty_list, 1);
ret.out()
}
}
impl Spec {
/// Loads a chain-specification from a json data structure
pub fn from_json(json: Json) -> Spec {
// once we commit ourselves to some json parsing library (serde?)
@ -150,48 +150,54 @@ impl Spec {
let mut state = HashMap::new();
let mut builtins = HashMap::new();
let accounts = json["alloc"].as_object().expect("Missing genesis state");
for (address, acc) in accounts.iter() {
let addr = Address::from_str(address).unwrap();
let o = acc.as_object().unwrap();
if let Json::Object(_) = o["precompiled"] {
if let Some(b) = Builtin::from_json(&o["precompiled"]) {
builtins.insert(addr.clone(), b);
if let Some(&Json::Object(ref accounts)) = json.find("accounts") {
for (address, acc) in accounts.iter() {
let addr = Address::from_str(address).unwrap();
if let Some(ref builtin_json) = acc.find("builtin") {
if let Some(builtin) = Builtin::from_json(builtin_json) {
builtins.insert(addr.clone(), builtin);
}
}
let balance = if let Some(&Json::String(ref b)) = acc.find("balance") {U256::from_dec_str(b).unwrap_or(U256::from(0))} else {U256::from(0)};
let nonce = if let Some(&Json::String(ref n)) = acc.find("nonce") {U256::from_dec_str(n).unwrap_or(U256::from(0))} else {U256::from(0)};
// TODO: handle code & data if they exist.
state.insert(addr, Account::new_basic(balance, nonce));
}
let balance = U256::from_dec_str(o["balance"].as_string().unwrap_or("0")).unwrap();
let nonce = U256::from_dec_str(o["nonce"].as_string().unwrap_or("0")).unwrap();
// TODO: handle code & data is they exist.
state.insert(addr, Account::new_basic(balance, nonce));
}
let genesis = &json["genesis"];//.as_object().expect("No genesis object in JSON");
let (seal_fields, seal_rlp) = {
if json.find("mixhash").is_some() && json.find("nonce").is_some() {
if genesis.find("mixHash").is_some() && genesis.find("nonce").is_some() {
let mut s = RlpStream::new();
s.append(&H256::from_str(&json["mixhash"].as_string().unwrap()[2..]).unwrap());
s.append(&H64::from_str(&json["nonce"].as_string().unwrap()[2..]).unwrap());
s.append(&H256::from_str(&genesis["mixHash"].as_string().expect("mixHash not a string.")[2..]).expect("Invalid mixHash string value"));
s.append(&H64::from_str(&genesis["nonce"].as_string().expect("nonce not a string.")[2..]).expect("Invalid nonce string value"));
(2, s.out())
} else {
// backup algo that will work with sealFields/sealRlp (and without).
(usize::from_str(&json["sealFields"].as_string().unwrap_or("0x")[2..]).unwrap(), json["sealRlp"].as_string().unwrap_or("0x")[2..].from_hex().unwrap())
(
usize::from_str(&genesis["sealFields"].as_string().unwrap_or("0x")[2..]).expect("Invalid sealFields integer data"),
genesis["sealRlp"].as_string().unwrap_or("0x")[2..].from_hex().expect("Invalid sealRlp hex data")
)
}
};
Spec {
engine_name: json["engineName"].as_string().unwrap().to_string(),
engine_params: json_to_rlp_map(&json["params"]),
builtins: builtins,
parent_hash: H256::from_str(&json["parentHash"].as_string().unwrap()[2..]).unwrap(),
author: Address::from_str(&json["coinbase"].as_string().unwrap()[2..]).unwrap(),
difficulty: U256::from_str(&json["difficulty"].as_string().unwrap()[2..]).unwrap(),
gas_limit: U256::from_str(&json["gasLimit"].as_string().unwrap()[2..]).unwrap(),
parent_hash: H256::from_str(&genesis["parentHash"].as_string().unwrap()[2..]).unwrap(),
author: Address::from_str(&genesis["author"].as_string().unwrap()[2..]).unwrap(),
difficulty: U256::from_str(&genesis["difficulty"].as_string().unwrap()[2..]).unwrap(),
gas_limit: U256::from_str(&genesis["gasLimit"].as_string().unwrap()[2..]).unwrap(),
gas_used: U256::from(0u8),
timestamp: U256::from_str(&json["timestamp"].as_string().unwrap()[2..]).unwrap(),
extra_data: json["extraData"].as_string().unwrap()[2..].from_hex().unwrap(),
timestamp: U256::from_str(&genesis["timestamp"].as_string().unwrap()[2..]).unwrap(),
extra_data: genesis["extraData"].as_string().unwrap()[2..].from_hex().unwrap(),
genesis_state: state,
seal_fields: seal_fields,
seal_rlp: seal_rlp,
state_root_memo: RefCell::new(json["stateRoot"].as_string().map(|s| H256::from_str(&s[2..]).unwrap())),
state_root_memo: RefCell::new(genesis.find("stateRoot").and_then(|_| genesis["stateRoot"].as_string()).map(|s| H256::from_str(&s[2..]).unwrap())),
}
}
@ -315,10 +321,10 @@ impl Spec {
(Address::from_str("0000000000000000000000000000000000000003").unwrap(), Account::new_basic(U256::from(1), n)),
(Address::from_str("0000000000000000000000000000000000000004").unwrap(), Account::new_basic(U256::from(1), n)),
(Address::from_str("102e61f5d8f9bc71d0ad4a084df4e65e05ce0e1c").unwrap(), Account::new_basic(U256::from(1) << 200, n))
]}.into_iter().fold(HashMap::new(), | mut acc, vec | {
acc.insert(vec.0, vec.1);
acc
}),
]}.into_iter().fold(HashMap::new(), | mut acc, vec | {
acc.insert(vec.0, vec.1);
acc
}),
seal_fields: 2,
seal_rlp: {
let mut r = RlpStream::new();
@ -336,6 +342,7 @@ mod tests {
use std::str::FromStr;
use util::hash::*;
use util::sha3::*;
use rustc_serialize::json::Json;
use views::*;
use super::*;
@ -348,4 +355,14 @@ mod tests {
let genesis = morden.genesis_block();
assert_eq!(BlockView::new(&genesis).header_view().sha3(), H256::from_str("0cd786a2425d16f152c658316c423e6ce1181e15c3295826d7c9904cba9ce303").unwrap());
}
#[test]
fn morden_res() {
let morden_json = Json::from_str(::std::str::from_utf8(include_bytes!("../res/morden.json")).unwrap()).expect("Json is invalid");
let morden = Spec::from_json(morden_json);
assert_eq!(*morden.state_root(), H256::from_str("f3f4696bbf3b3b07775128eb7a3763279a394e382130f27c21e70233e04946a9").unwrap());
let genesis = morden.genesis_block();
assert_eq!(BlockView::new(&genesis).header_view().sha3(), H256::from_str("0cd786a2425d16f152c658316c423e6ce1181e15c3295826d7c9904cba9ce303").unwrap());
}
}