diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml index 4f7fe4cdb40..c3b4f8f4c81 100644 --- a/.gitlab-ci.yml +++ b/.gitlab-ci.yml @@ -24,6 +24,7 @@ cache: - stable - beta - tags + - schedules .collect_artifacts: &collect_artifacts artifacts: diff --git a/Cargo.lock b/Cargo.lock index 7841de5023c..bcd86253535 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -2179,12 +2179,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index" dependencies = [ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)", "local-encoding 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)", - "parity-rocksdb-sys 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)", + "parity-rocksdb-sys 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)", ] [[package]] name = "parity-rocksdb-sys" -version = "0.5.2" +version = "0.5.3" source = "registry+https://github.com/rust-lang/crates.io-index" dependencies = [ "cmake 0.1.33 (registry+https://github.com/rust-lang/crates.io-index)", @@ -4056,7 +4056,7 @@ dependencies = [ "checksum parity-crypto 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c1117f6574377d21309bfa1f7d69ff734120685d92b02c3f362b122585758840" "checksum parity-path 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "5962540f99d3895d9addf535f37ab1397886bc2c68e59efd040ef458e5f8c3f7" "checksum parity-rocksdb 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "cd55d2d6d6000ec99f021cf52c9acc7d2a402e14f95ced4c5de230696fabe00b" -"checksum parity-rocksdb-sys 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "9ae07d4bfb2759541957c19f471996b807fc09ef3a5bdce14409b57f038de49f" +"checksum parity-rocksdb-sys 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)" = "0e59eda423021494a6cf1be74f6989add403f53157409993f794e17b123cab51" "checksum parity-snappy 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e2c5f9d149b13134b8b354d93a92830efcbee6fe5b73a2e6e540fe70d4dd8a63" "checksum parity-snappy-sys 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c2086caac40c79289cb70d7e1c64f5888e1c53f5d38399d3e95101493739f423" "checksum parity-tokio-ipc 0.1.5 (git+https://github.com/nikvolf/parity-tokio-ipc?rev=7c9bbe3bc45d8e72a92b0951acc877da228abd50)" = "" diff --git a/ethcore/res/ethereum/foundation.json b/ethcore/res/ethereum/foundation.json index 4b11041a84a..f80fe893465 100644 --- a/ethcore/res/ethereum/foundation.json +++ b/ethcore/res/ethereum/foundation.json @@ -177,8 +177,8 @@ "stateRoot": "0xd7f8974fb5ac78d9ac099b9ad5018bedc2ce0a72dad1827a1709da30580f0544" }, "hardcodedSync": { - "header": 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b/ethcore/res/ethereum/poacore.json @@ -15,9 +15,14 @@ }, "772000": { "safeContract": "0x83451c8bc04d4ee9745ccc58edfab88037bc48cc" + }, + "5329160": { + "safeContract": "0xa105Db0e6671C7B5f4f350ff1Af6460E6C696e71" } } - } + }, + "blockRewardContractAddress": "0x4d0153D434384128D17243409e02fca1B3EE21D6", + "blockRewardContractTransition": 5761140 } } }, diff --git a/ethcore/res/ethereum/ropsten.json b/ethcore/res/ethereum/ropsten.json index 9adb5f4a263..6e8d9a76e91 100644 --- a/ethcore/res/ethereum/ropsten.json +++ b/ethcore/res/ethereum/ropsten.json @@ -62,8 +62,8 @@ "gasLimit": "0x1000000" }, "hardcodedSync":{ - "header": 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- "totalDifficulty": "9811143388018700", + "header": 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"0xe52f7c17a4106594563ae7b724e5613e87d8442177f39a36b946b0e335be0e5b", + "0x7726202a7c255a9d7be47af6f3b44c1e379cda61237866554396fb6ec043482c", + "0x665da353f296cde80e3cbcb9c7f93b107d5676e5cd694b0bd33334d74789beb9" ] }, "nodes": [ diff --git a/ethcore/src/client/test_client.rs b/ethcore/src/client/test_client.rs index 81fbc4e6f71..09f00515e84 100644 --- a/ethcore/src/client/test_client.rs +++ b/ethcore/src/client/test_client.rs @@ -118,7 +118,7 @@ pub struct TestBlockChainClient { } /// Used for generating test client blocks. -#[derive(Clone)] +#[derive(Clone, Copy)] pub enum EachBlockWith { /// Plain block. Nothing, @@ -242,69 +242,68 @@ impl TestBlockChainClient { *self.error_on_logs.write() = val; } - /// Add blocks to test client. - pub fn add_blocks(&self, count: usize, with: EachBlockWith) { - let len = self.numbers.read().len(); - for n in len..(len + count) { - let mut header = BlockHeader::new(); - header.set_difficulty(From::from(n)); - header.set_parent_hash(self.last_hash.read().clone()); - header.set_number(n as BlockNumber); - header.set_gas_limit(U256::from(1_000_000)); - header.set_extra_data(self.extra_data.clone()); - let uncles = match with { - EachBlockWith::Uncle | EachBlockWith::UncleAndTransaction => { - let mut uncles = RlpStream::new_list(1); - let mut uncle_header = BlockHeader::new(); - uncle_header.set_difficulty(From::from(n)); - uncle_header.set_parent_hash(self.last_hash.read().clone()); - uncle_header.set_number(n as BlockNumber); - uncles.append(&uncle_header); - header.set_uncles_hash(keccak(uncles.as_raw())); - uncles - }, - _ => RlpStream::new_list(0) - }; - let txs = match with { - EachBlockWith::Transaction | EachBlockWith::UncleAndTransaction => { - let mut txs = RlpStream::new_list(1); - let keypair = Random.generate().unwrap(); - // Update nonces value - self.nonces.write().insert(keypair.address(), U256::one()); - let tx = Transaction { - action: Action::Create, - value: U256::from(100), - data: "3331600055".from_hex().unwrap(), - gas: U256::from(100_000), - gas_price: U256::from(200_000_000_000u64), - nonce: U256::zero() - }; - let signed_tx = tx.sign(keypair.secret(), None); - txs.append(&signed_tx); - txs.out() - }, - _ => ::rlp::EMPTY_LIST_RLP.to_vec() - }; - - let mut rlp = RlpStream::new_list(3); - rlp.append(&header); - rlp.append_raw(&txs, 1); - rlp.append_raw(uncles.as_raw(), 1); - let unverified = Unverified::from_rlp(rlp.out()).unwrap(); - self.import_block(unverified).unwrap(); - } - } + /// Add a block to test client. + pub fn add_block(&self, with: EachBlockWith, hook: F) + where F: Fn(BlockHeader) -> BlockHeader + { + let n = self.numbers.read().len(); + + let mut header = BlockHeader::new(); + header.set_difficulty(From::from(n)); + header.set_parent_hash(self.last_hash.read().clone()); + header.set_number(n as BlockNumber); + header.set_gas_limit(U256::from(1_000_000)); + header.set_extra_data(self.extra_data.clone()); + + header = hook(header); + + let uncles = match with { + EachBlockWith::Uncle | EachBlockWith::UncleAndTransaction => { + let mut uncles = RlpStream::new_list(1); + let mut uncle_header = BlockHeader::new(); + uncle_header.set_difficulty(From::from(n)); + uncle_header.set_parent_hash(self.last_hash.read().clone()); + uncle_header.set_number(n as BlockNumber); + uncles.append(&uncle_header); + header.set_uncles_hash(keccak(uncles.as_raw())); + uncles + }, + _ => RlpStream::new_list(0) + }; + let txs = match with { + EachBlockWith::Transaction | EachBlockWith::UncleAndTransaction => { + let mut txs = RlpStream::new_list(1); + let keypair = Random.generate().unwrap(); + // Update nonces value + self.nonces.write().insert(keypair.address(), U256::one()); + let tx = Transaction { + action: Action::Create, + value: U256::from(100), + data: "3331600055".from_hex().unwrap(), + gas: U256::from(100_000), + gas_price: U256::from(200_000_000_000u64), + nonce: U256::zero() + }; + let signed_tx = tx.sign(keypair.secret(), None); + txs.append(&signed_tx); + txs.out() + }, + _ => ::rlp::EMPTY_LIST_RLP.to_vec() + }; - /// Make a bad block by setting invalid extra data. - pub fn corrupt_block(&self, n: BlockNumber) { - let hash = self.block_hash(BlockId::Number(n)).unwrap(); - let mut header: BlockHeader = self.block_header(BlockId::Number(n)).unwrap().decode().expect("decoding failed"); - header.set_extra_data(b"This extra data is way too long to be considered valid".to_vec()); let mut rlp = RlpStream::new_list(3); rlp.append(&header); - rlp.append_raw(&::rlp::NULL_RLP, 1); - rlp.append_raw(&::rlp::NULL_RLP, 1); - self.blocks.write().insert(hash, rlp.out()); + rlp.append_raw(&txs, 1); + rlp.append_raw(uncles.as_raw(), 1); + let unverified = Unverified::from_rlp(rlp.out()).unwrap(); + self.import_block(unverified).unwrap(); + } + + /// Add a sequence of blocks to test client. + pub fn add_blocks(&self, count: usize, with: EachBlockWith) { + for _ in 0..count { + self.add_block(with, |header| header); + } } /// Make a bad block by setting invalid parent hash. diff --git a/ethcore/src/engines/mod.rs b/ethcore/src/engines/mod.rs index 2009534f351..0f5a9f4ccc0 100644 --- a/ethcore/src/engines/mod.rs +++ b/ethcore/src/engines/mod.rs @@ -44,7 +44,7 @@ use self::epoch::PendingTransition; use account_provider::AccountProvider; use builtin::Builtin; -use vm::{EnvInfo, Schedule, CreateContractAddress}; +use vm::{EnvInfo, Schedule, CreateContractAddress, CallType, ActionValue}; use error::Error; use header::{Header, BlockNumber}; use snapshot::SnapshotComponents; @@ -163,8 +163,10 @@ pub fn default_system_or_code_call<'a>(machine: &'a ::machine::EthereumMachine, None, Some(code), Some(code_hash), + Some(ActionValue::Apparent(U256::zero())), U256::max_value(), Some(data), + Some(CallType::StaticCall), ) }, }; diff --git a/ethcore/src/machine.rs b/ethcore/src/machine.rs index 8162408e92f..c74cc6bf4d1 100644 --- a/ethcore/src/machine.rs +++ b/ethcore/src/machine.rs @@ -135,8 +135,10 @@ impl EthereumMachine { Some(contract_address), code, code_hash, + None, gas, - data + data, + None, ) } @@ -149,8 +151,10 @@ impl EthereumMachine { contract_address: Option
, code: Option>>, code_hash: Option, + value: Option, gas: U256, - data: Option> + data: Option>, + call_type: Option, ) -> Result, Error> { let env_info = { let mut env_info = block.env_info(); @@ -167,11 +171,11 @@ impl EthereumMachine { origin: SYSTEM_ADDRESS, gas, gas_price: 0.into(), - value: ActionValue::Transfer(0.into()), + value: value.unwrap_or(ActionValue::Transfer(0.into())), code, code_hash, data, - call_type: CallType::Call, + call_type: call_type.unwrap_or(CallType::Call), params_type: ParamsType::Separate, }; let schedule = self.schedule(env_info.number); diff --git a/ethcore/sync/src/block_sync.rs b/ethcore/sync/src/block_sync.rs index 55b23cba4d1..bf3ffd85820 100644 --- a/ethcore/sync/src/block_sync.rs +++ b/ethcore/sync/src/block_sync.rs @@ -28,6 +28,7 @@ use ethcore::client::{BlockStatus, BlockId, BlockImportError, BlockImportErrorKi use ethcore::error::{ImportErrorKind, QueueErrorKind, BlockError}; use sync_io::SyncIo; use blocks::{BlockCollection, SyncBody, SyncHeader}; +use chain::BlockSet; const MAX_HEADERS_TO_REQUEST: usize = 128; const MAX_BODIES_TO_REQUEST: usize = 32; @@ -35,6 +36,26 @@ const MAX_RECEPITS_TO_REQUEST: usize = 128; const SUBCHAIN_SIZE: u64 = 256; const MAX_ROUND_PARENTS: usize = 16; const MAX_PARALLEL_SUBCHAIN_DOWNLOAD: usize = 5; +const MAX_USELESS_HEADERS_PER_ROUND: usize = 3; + +// logging macros prepend BlockSet context for log filtering +macro_rules! trace_sync { + ($self:ident, $fmt:expr, $($arg:tt)+) => { + trace!(target: "sync", concat!("{:?}: ", $fmt), $self.block_set, $($arg)+); + }; + ($self:ident, $fmt:expr) => { + trace!(target: "sync", concat!("{:?}: ", $fmt), $self.block_set); + }; +} + +macro_rules! debug_sync { + ($self:ident, $fmt:expr, $($arg:tt)+) => { + debug!(target: "sync", concat!("{:?}: ", $fmt), $self.block_set, $($arg)+); + }; + ($self:ident, $fmt:expr) => { + debug!(target: "sync", concat!("{:?}: ", $fmt), $self.block_set); + }; +} #[derive(Copy, Clone, Eq, PartialEq, Debug)] /// Downloader state @@ -65,6 +86,7 @@ pub enum BlockRequest { } /// Indicates sync action +#[derive(Eq, PartialEq, Debug)] pub enum DownloadAction { /// Do nothing None, @@ -89,15 +111,17 @@ impl From for BlockDownloaderImportError { /// Block downloader strategy. /// Manages state and block data for a block download process. pub struct BlockDownloader { + /// Which set of blocks to download + block_set: BlockSet, /// Downloader state state: State, /// Highest block number seen highest_block: Option, /// Downloaded blocks, holds `H`, `B` and `S` blocks: BlockCollection, - /// Last impoted block number + /// Last imported block number last_imported_block: BlockNumber, - /// Last impoted block hash + /// Last imported block hash last_imported_hash: H256, /// Number of blocks imported this round imported_this_round: Option, @@ -114,13 +138,20 @@ pub struct BlockDownloader { retract_step: u64, /// Whether reorg should be limited. limit_reorg: bool, + /// consecutive useless headers this round + useless_headers_count: usize, } impl BlockDownloader { - /// Create a new instance of syncing strategy. This won't reorganize to before the - /// last kept state. - pub fn new(sync_receipts: bool, start_hash: &H256, start_number: BlockNumber) -> Self { + /// Create a new instance of syncing strategy. + /// For BlockSet::NewBlocks this won't reorganize to before the last kept state. + pub fn new(block_set: BlockSet, start_hash: &H256, start_number: BlockNumber) -> Self { + let (limit_reorg, sync_receipts) = match block_set { + BlockSet::NewBlocks => (true, false), + BlockSet::OldBlocks => (false, true) + }; BlockDownloader { + block_set: block_set, state: State::Idle, highest_block: None, last_imported_block: start_number, @@ -133,32 +164,15 @@ impl BlockDownloader { download_receipts: sync_receipts, target_hash: None, retract_step: 1, - limit_reorg: true, - } - } - - /// Create a new instance of sync with unlimited reorg allowed. - pub fn with_unlimited_reorg(sync_receipts: bool, start_hash: &H256, start_number: BlockNumber) -> Self { - BlockDownloader { - state: State::Idle, - highest_block: None, - last_imported_block: start_number, - last_imported_hash: start_hash.clone(), - last_round_start: start_number, - last_round_start_hash: start_hash.clone(), - blocks: BlockCollection::new(sync_receipts), - imported_this_round: None, - round_parents: VecDeque::new(), - download_receipts: sync_receipts, - target_hash: None, - retract_step: 1, - limit_reorg: false, + limit_reorg: limit_reorg, + useless_headers_count: 0, } } /// Reset sync. Clear all local downloaded data. pub fn reset(&mut self) { self.blocks.clear(); + self.useless_headers_count = 0; self.state = State::Idle; } @@ -220,45 +234,65 @@ impl BlockDownloader { } /// Add new block headers. - pub fn import_headers(&mut self, io: &mut SyncIo, r: &Rlp, expected_hash: Option) -> Result { + pub fn import_headers(&mut self, io: &mut SyncIo, r: &Rlp, expected_hash: H256) -> Result { let item_count = r.item_count().unwrap_or(0); if self.state == State::Idle { - trace!(target: "sync", "Ignored unexpected block headers"); + trace_sync!(self, "Ignored unexpected block headers"); return Ok(DownloadAction::None) } if item_count == 0 && (self.state == State::Blocks) { return Err(BlockDownloaderImportError::Invalid); } + // The request is generated in ::request_blocks. + let (max_count, skip) = if self.state == State::ChainHead { + (SUBCHAIN_SIZE as usize, (MAX_HEADERS_TO_REQUEST - 2) as u64) + } else { + (MAX_HEADERS_TO_REQUEST, 0) + }; + + if item_count > max_count { + debug!(target: "sync", "Headers response is larger than expected"); + return Err(BlockDownloaderImportError::Invalid); + } + let mut headers = Vec::new(); let mut hashes = Vec::new(); - let mut valid_response = item_count == 0; //empty response is valid - let mut any_known = false; + let mut last_header = None; for i in 0..item_count { let info = SyncHeader::from_rlp(r.at(i)?.as_raw().to_vec())?; let number = BlockNumber::from(info.header.number()); let hash = info.header.hash(); - // Check if any of the headers matches the hash we requested - if !valid_response { - if let Some(expected) = expected_hash { - valid_response = expected == hash; + + let valid_response = match last_header { + // First header must match expected hash. + None => expected_hash == hash, + Some((last_number, last_hash)) => { + // Subsequent headers must be spaced by skip interval. + let skip_valid = number == last_number + skip + 1; + // Consecutive headers must be linked by parent hash. + let parent_valid = (number != last_number + 1) || *info.header.parent_hash() == last_hash; + skip_valid && parent_valid } + }; + + // Disable the peer for this syncing round if it gives invalid chain + if !valid_response { + debug!(target: "sync", "Invalid headers response"); + return Err(BlockDownloaderImportError::Invalid); } - any_known = any_known || self.blocks.contains_head(&hash); + + last_header = Some((number, hash)); if self.blocks.contains(&hash) { - trace!(target: "sync", "Skipping existing block header {} ({:?})", number, hash); + trace_sync!(self, "Skipping existing block header {} ({:?})", number, hash); continue; } - if self.highest_block.as_ref().map_or(true, |n| number > *n) { - self.highest_block = Some(number); - } - match io.chain().block_status(BlockId::Hash(hash.clone())) { BlockStatus::InChain | BlockStatus::Queued => { match self.state { - State::Blocks => trace!(target: "sync", "Header already in chain {} ({})", number, hash), - _ => trace!(target: "sync", "Header already in chain {} ({}), state = {:?}", number, hash, self.state), + State::Blocks => trace_sync!(self, "Header already in chain {} ({})", number, hash), + _ => trace_sync!(self, "Header already in chain {} ({}), state = {:?}", number, hash, self.state), } headers.push(info); hashes.push(hash); @@ -273,17 +307,16 @@ impl BlockDownloader { } } - // Disable the peer for this syncing round if it gives invalid chain - if !valid_response { - trace!(target: "sync", "Invalid headers response"); - return Err(BlockDownloaderImportError::Invalid); + if let Some((number, _)) = last_header { + if self.highest_block.as_ref().map_or(true, |n| number > *n) { + self.highest_block = Some(number); + } } match self.state { State::ChainHead => { if !headers.is_empty() { - // TODO: validate heads better. E.g. check that there is enough distance between blocks. - trace!(target: "sync", "Received {} subchain heads, proceeding to download", headers.len()); + trace_sync!(self, "Received {} subchain heads, proceeding to download", headers.len()); self.blocks.reset_to(hashes); self.state = State::Blocks; return Ok(DownloadAction::Reset); @@ -292,34 +325,41 @@ impl BlockDownloader { let oldest_reorg = io.chain().pruning_info().earliest_state; let last = self.last_imported_block; if self.limit_reorg && best > last && (last == 0 || last < oldest_reorg) { - trace!(target: "sync", "No common block, disabling peer"); + trace_sync!(self, "No common block, disabling peer"); return Err(BlockDownloaderImportError::Invalid); } } }, State::Blocks => { let count = headers.len(); - // At least one of the heades must advance the subchain. Otherwise they are all useless. - if count == 0 || !any_known { - trace!(target: "sync", "No useful headers"); + // At least one of the headers must advance the subchain. Otherwise they are all useless. + if count == 0 { + self.useless_headers_count += 1; + trace_sync!(self, "No useful headers ({:?} this round), expected hash {:?}", self.useless_headers_count, expected_hash); + // only reset download if we have multiple subchain heads, to avoid unnecessary resets + // when we are at the head of the chain when we may legitimately receive no useful headers + if self.blocks.heads_len() > 1 && self.useless_headers_count >= MAX_USELESS_HEADERS_PER_ROUND { + trace_sync!(self, "Received {:?} useless responses this round. Resetting sync", MAX_USELESS_HEADERS_PER_ROUND); + self.reset(); + } return Err(BlockDownloaderImportError::Useless); } self.blocks.insert_headers(headers); - trace!(target: "sync", "Inserted {} headers", count); + trace_sync!(self, "Inserted {} headers", count); }, - _ => trace!(target: "sync", "Unexpected headers({})", headers.len()), + _ => trace_sync!(self, "Unexpected headers({})", headers.len()), } Ok(DownloadAction::None) } /// Called by peer once it has new block bodies - pub fn import_bodies(&mut self, r: &Rlp) -> Result<(), BlockDownloaderImportError> { + pub fn import_bodies(&mut self, r: &Rlp, expected_hashes: &[H256]) -> Result<(), BlockDownloaderImportError> { let item_count = r.item_count().unwrap_or(0); if item_count == 0 { return Err(BlockDownloaderImportError::Useless); } else if self.state != State::Blocks { - trace!(target: "sync", "Ignored unexpected block bodies"); + trace_sync!(self, "Ignored unexpected block bodies"); } else { let mut bodies = Vec::with_capacity(item_count); for i in 0..item_count { @@ -327,8 +367,13 @@ impl BlockDownloader { bodies.push(body); } - if self.blocks.insert_bodies(bodies) != item_count { - trace!(target: "sync", "Deactivating peer for giving invalid block bodies"); + let hashes = self.blocks.insert_bodies(bodies); + if hashes.len() != item_count { + trace_sync!(self, "Deactivating peer for giving invalid block bodies"); + return Err(BlockDownloaderImportError::Invalid); + } + if !all_expected(hashes.as_slice(), expected_hashes, |&a, &b| a == b) { + trace_sync!(self, "Deactivating peer for giving unexpected block bodies"); return Err(BlockDownloaderImportError::Invalid); } } @@ -336,25 +381,30 @@ impl BlockDownloader { } /// Called by peer once it has new block bodies - pub fn import_receipts(&mut self, _io: &mut SyncIo, r: &Rlp) -> Result<(), BlockDownloaderImportError> { + pub fn import_receipts(&mut self, r: &Rlp, expected_hashes: &[H256]) -> Result<(), BlockDownloaderImportError> { let item_count = r.item_count().unwrap_or(0); if item_count == 0 { return Err(BlockDownloaderImportError::Useless); } else if self.state != State::Blocks { - trace!(target: "sync", "Ignored unexpected block receipts"); + trace_sync!(self, "Ignored unexpected block receipts"); } else { let mut receipts = Vec::with_capacity(item_count); for i in 0..item_count { let receipt = r.at(i).map_err(|e| { - trace!(target: "sync", "Error decoding block receipts RLP: {:?}", e); + trace_sync!(self, "Error decoding block receipts RLP: {:?}", e); BlockDownloaderImportError::Invalid })?; receipts.push(receipt.as_raw().to_vec()); } - if self.blocks.insert_receipts(receipts) != item_count { - trace!(target: "sync", "Deactivating peer for giving invalid block receipts"); + let hashes = self.blocks.insert_receipts(receipts); + if hashes.len() != item_count { + trace_sync!(self, "Deactivating peer for giving invalid block receipts"); + return Err(BlockDownloaderImportError::Invalid); + } + if !all_expected(hashes.as_slice(), expected_hashes, |a, b| a.contains(b)) { + trace_sync!(self, "Deactivating peer for giving unexpected block receipts"); return Err(BlockDownloaderImportError::Invalid); } } @@ -363,7 +413,7 @@ impl BlockDownloader { fn start_sync_round(&mut self, io: &mut SyncIo) { self.state = State::ChainHead; - trace!(target: "sync", "Starting round (last imported count = {:?}, last started = {}, block = {:?}", self.imported_this_round, self.last_round_start, self.last_imported_block); + trace_sync!(self, "Starting round (last imported count = {:?}, last started = {}, block = {:?}", self.imported_this_round, self.last_round_start, self.last_imported_block); // Check if need to retract to find the common block. The problem is that the peers still return headers by hash even // from the non-canonical part of the tree. So we also retract if nothing has been imported last round. let start = self.last_round_start; @@ -375,12 +425,12 @@ impl BlockDownloader { if let Some(&(_, p)) = self.round_parents.iter().find(|&&(h, _)| h == start_hash) { self.last_imported_block = start - 1; self.last_imported_hash = p.clone(); - trace!(target: "sync", "Searching common header from the last round {} ({})", self.last_imported_block, self.last_imported_hash); + trace_sync!(self, "Searching common header from the last round {} ({})", self.last_imported_block, self.last_imported_hash); } else { let best = io.chain().chain_info().best_block_number; let oldest_reorg = io.chain().pruning_info().earliest_state; if self.limit_reorg && best > start && start < oldest_reorg { - debug!(target: "sync", "Could not revert to previous ancient block, last: {} ({})", start, start_hash); + debug_sync!(self, "Could not revert to previous ancient block, last: {} ({})", start, start_hash); self.reset(); } else { let n = start - cmp::min(self.retract_step, start); @@ -389,10 +439,10 @@ impl BlockDownloader { Some(h) => { self.last_imported_block = n; self.last_imported_hash = h; - trace!(target: "sync", "Searching common header in the blockchain {} ({})", start, self.last_imported_hash); + trace_sync!(self, "Searching common header in the blockchain {} ({})", start, self.last_imported_hash); } None => { - debug!(target: "sync", "Could not revert to previous block, last: {} ({})", start, self.last_imported_hash); + debug_sync!(self, "Could not revert to previous block, last: {} ({})", start, self.last_imported_hash); self.reset(); } } @@ -420,7 +470,7 @@ impl BlockDownloader { State::ChainHead => { if num_active_peers < MAX_PARALLEL_SUBCHAIN_DOWNLOAD { // Request subchain headers - trace!(target: "sync", "Starting sync with better chain"); + trace_sync!(self, "Starting sync with better chain"); // Request MAX_HEADERS_TO_REQUEST - 2 headers apart so that // MAX_HEADERS_TO_REQUEST would include headers for neighbouring subchains return Some(BlockRequest::Headers { @@ -463,8 +513,9 @@ impl BlockDownloader { } /// Checks if there are blocks fully downloaded that can be imported into the blockchain and does the import. - pub fn collect_blocks(&mut self, io: &mut SyncIo, allow_out_of_order: bool) -> Result<(), BlockDownloaderImportError> { - let mut bad = false; + /// Returns DownloadAction::Reset if it is imported all the the blocks it can and all downloading peers should be reset + pub fn collect_blocks(&mut self, io: &mut SyncIo, allow_out_of_order: bool) -> DownloadAction { + let mut download_action = DownloadAction::None; let mut imported = HashSet::new(); let blocks = self.blocks.drain(); let count = blocks.len(); @@ -478,8 +529,8 @@ impl BlockDownloader { if self.target_hash.as_ref().map_or(false, |t| t == &h) { self.state = State::Complete; - trace!(target: "sync", "Sync target reached"); - return Ok(()); + trace_sync!(self, "Sync target reached"); + return download_action; } let result = if let Some(receipts) = receipts { @@ -490,15 +541,15 @@ impl BlockDownloader { match result { Err(BlockImportError(BlockImportErrorKind::Import(ImportErrorKind::AlreadyInChain), _)) => { - trace!(target: "sync", "Block already in chain {:?}", h); + trace_sync!(self, "Block already in chain {:?}", h); self.block_imported(&h, number, &parent); }, Err(BlockImportError(BlockImportErrorKind::Import(ImportErrorKind::AlreadyQueued), _)) => { - trace!(target: "sync", "Block already queued {:?}", h); + trace_sync!(self, "Block already queued {:?}", h); self.block_imported(&h, number, &parent); }, Ok(_) => { - trace!(target: "sync", "Block queued {:?}", h); + trace_sync!(self, "Block queued {:?}", h); imported.insert(h.clone()); self.block_imported(&h, number, &parent); }, @@ -506,37 +557,34 @@ impl BlockDownloader { break; }, Err(BlockImportError(BlockImportErrorKind::Block(BlockError::UnknownParent(_)), _)) => { - trace!(target: "sync", "Unknown new block parent, restarting sync"); + trace_sync!(self, "Unknown new block parent, restarting sync"); break; }, Err(BlockImportError(BlockImportErrorKind::Block(BlockError::TemporarilyInvalid(_)), _)) => { - debug!(target: "sync", "Block temporarily invalid, restarting sync"); + debug_sync!(self, "Block temporarily invalid: {:?}, restarting sync", h); break; }, Err(BlockImportError(BlockImportErrorKind::Queue(QueueErrorKind::Full(limit)), _)) => { - debug!(target: "sync", "Block import queue full ({}), restarting sync", limit); + debug_sync!(self, "Block import queue full ({}), restarting sync", limit); + download_action = DownloadAction::Reset; break; }, Err(e) => { - debug!(target: "sync", "Bad block {:?} : {:?}", h, e); - bad = true; + debug_sync!(self, "Bad block {:?} : {:?}", h, e); + download_action = DownloadAction::Reset; break; } } } - trace!(target: "sync", "Imported {} of {}", imported.len(), count); + trace_sync!(self, "Imported {} of {}", imported.len(), count); self.imported_this_round = Some(self.imported_this_round.unwrap_or(0) + imported.len()); - if bad { - return Err(BlockDownloaderImportError::Invalid); - } - if self.blocks.is_empty() { // complete sync round - trace!(target: "sync", "Sync round complete"); - self.reset(); + trace_sync!(self, "Sync round complete"); + download_action = DownloadAction::Reset; } - Ok(()) + download_action } fn block_imported(&mut self, hash: &H256, number: BlockNumber, parent: &H256) { @@ -549,4 +597,392 @@ impl BlockDownloader { } } -//TODO: module tests +// Determines if the first argument matches an ordered subset of the second, according to some predicate. +fn all_expected(values: &[A], expected_values: &[B], is_expected: F) -> bool + where F: Fn(&A, &B) -> bool +{ + let mut expected_iter = expected_values.iter(); + values.iter().all(|val1| { + while let Some(val2) = expected_iter.next() { + if is_expected(val1, val2) { + return true; + } + } + false + }) +} + +#[cfg(test)] +mod tests { + use super::*; + use ethcore::client::TestBlockChainClient; + use ethcore::header::Header as BlockHeader; + use ethcore::spec::Spec; + use ethkey::{Generator,Random}; + use hash::keccak; + use parking_lot::RwLock; + use rlp::{encode_list,RlpStream}; + use tests::helpers::TestIo; + use tests::snapshot::TestSnapshotService; + use transaction::{Transaction,SignedTransaction}; + use triehash_ethereum::ordered_trie_root; + + fn dummy_header(number: u64, parent_hash: H256) -> BlockHeader { + let mut header = BlockHeader::new(); + header.set_gas_limit(0.into()); + header.set_difficulty((number * 100).into()); + header.set_timestamp(number * 10); + header.set_number(number); + header.set_parent_hash(parent_hash); + header.set_state_root(H256::zero()); + header + } + + fn dummy_signed_tx() -> SignedTransaction { + let keypair = Random.generate().unwrap(); + Transaction::default().sign(keypair.secret(), None) + } + + fn import_headers(headers: &[BlockHeader], downloader: &mut BlockDownloader, io: &mut SyncIo) -> Result { + let mut stream = RlpStream::new(); + stream.append_list(headers); + let bytes = stream.out(); + let rlp = Rlp::new(&bytes); + let expected_hash = headers.first().unwrap().hash(); + downloader.import_headers(io, &rlp, expected_hash) + } + + fn import_headers_ok(headers: &[BlockHeader], downloader: &mut BlockDownloader, io: &mut SyncIo) { + let res = import_headers(headers, downloader, io); + assert!(res.is_ok()); + } + + #[test] + fn import_headers_in_chain_head_state() { + ::env_logger::try_init().ok(); + + let spec = Spec::new_test(); + let genesis_hash = spec.genesis_header().hash(); + + let mut downloader = BlockDownloader::new(BlockSet::NewBlocks, &genesis_hash, 0); + downloader.state = State::ChainHead; + + let mut chain = TestBlockChainClient::new(); + let snapshot_service = TestSnapshotService::new(); + let queue = RwLock::new(VecDeque::new()); + let mut io = TestIo::new(&mut chain, &snapshot_service, &queue, None); + + // Valid headers sequence. + let valid_headers = [ + spec.genesis_header(), + dummy_header(127, H256::random()), + dummy_header(254, H256::random()), + ]; + let rlp_data = encode_list(&valid_headers); + let valid_rlp = Rlp::new(&rlp_data); + + match downloader.import_headers(&mut io, &valid_rlp, genesis_hash) { + Ok(DownloadAction::Reset) => assert_eq!(downloader.state, State::Blocks), + _ => panic!("expected transition to Blocks state"), + }; + + // Headers are rejected because the expected hash does not match. + let invalid_start_block_headers = [ + dummy_header(0, H256::random()), + dummy_header(127, H256::random()), + dummy_header(254, H256::random()), + ]; + let rlp_data = encode_list(&invalid_start_block_headers); + let invalid_start_block_rlp = Rlp::new(&rlp_data); + + match downloader.import_headers(&mut io, &invalid_start_block_rlp, genesis_hash) { + Err(BlockDownloaderImportError::Invalid) => (), + _ => panic!("expected BlockDownloaderImportError"), + }; + + // Headers are rejected because they are not spaced as expected. + let invalid_skip_headers = [ + spec.genesis_header(), + dummy_header(128, H256::random()), + dummy_header(256, H256::random()), + ]; + let rlp_data = encode_list(&invalid_skip_headers); + let invalid_skip_rlp = Rlp::new(&rlp_data); + + match downloader.import_headers(&mut io, &invalid_skip_rlp, genesis_hash) { + Err(BlockDownloaderImportError::Invalid) => (), + _ => panic!("expected BlockDownloaderImportError"), + }; + + // Invalid because the packet size is too large. + let mut too_many_headers = Vec::with_capacity((SUBCHAIN_SIZE + 1) as usize); + too_many_headers.push(spec.genesis_header()); + for i in 1..(SUBCHAIN_SIZE + 1) { + too_many_headers.push(dummy_header((MAX_HEADERS_TO_REQUEST as u64 - 1) * i, H256::random())); + } + let rlp_data = encode_list(&too_many_headers); + + let too_many_rlp = Rlp::new(&rlp_data); + match downloader.import_headers(&mut io, &too_many_rlp, genesis_hash) { + Err(BlockDownloaderImportError::Invalid) => (), + _ => panic!("expected BlockDownloaderImportError"), + }; + } + + #[test] + fn import_headers_in_blocks_state() { + ::env_logger::try_init().ok(); + + let mut chain = TestBlockChainClient::new(); + let snapshot_service = TestSnapshotService::new(); + let queue = RwLock::new(VecDeque::new()); + let mut io = TestIo::new(&mut chain, &snapshot_service, &queue, None); + + let mut headers = Vec::with_capacity(3); + let parent_hash = H256::random(); + headers.push(dummy_header(127, parent_hash)); + let parent_hash = headers[0].hash(); + headers.push(dummy_header(128, parent_hash)); + let parent_hash = headers[1].hash(); + headers.push(dummy_header(129, parent_hash)); + + let mut downloader = BlockDownloader::new(BlockSet::NewBlocks, &H256::random(), 0); + downloader.state = State::Blocks; + downloader.blocks.reset_to(vec![headers[0].hash()]); + + let rlp_data = encode_list(&headers); + let headers_rlp = Rlp::new(&rlp_data); + + match downloader.import_headers(&mut io, &headers_rlp, headers[0].hash()) { + Ok(DownloadAction::None) => (), + _ => panic!("expected successful import"), + }; + + // Invalidate parent_hash link. + headers[2] = dummy_header(129, H256::random()); + let rlp_data = encode_list(&headers); + let headers_rlp = Rlp::new(&rlp_data); + + match downloader.import_headers(&mut io, &headers_rlp, headers[0].hash()) { + Err(BlockDownloaderImportError::Invalid) => (), + _ => panic!("expected BlockDownloaderImportError"), + }; + + // Invalidate header sequence by skipping a header. + headers[2] = dummy_header(130, headers[1].hash()); + let rlp_data = encode_list(&headers); + let headers_rlp = Rlp::new(&rlp_data); + + match downloader.import_headers(&mut io, &headers_rlp, headers[0].hash()) { + Err(BlockDownloaderImportError::Invalid) => (), + _ => panic!("expected BlockDownloaderImportError"), + }; + } + + #[test] + fn import_bodies() { + ::env_logger::try_init().ok(); + + let mut chain = TestBlockChainClient::new(); + let snapshot_service = TestSnapshotService::new(); + let queue = RwLock::new(VecDeque::new()); + let mut io = TestIo::new(&mut chain, &snapshot_service, &queue, None); + + // Import block headers. + let mut headers = Vec::with_capacity(4); + let mut bodies = Vec::with_capacity(4); + let mut parent_hash = H256::zero(); + for i in 0..4 { + // Construct the block body + let mut uncles = if i > 0 { + encode_list(&[dummy_header(i - 1, H256::random())]).into_vec() + } else { + ::rlp::EMPTY_LIST_RLP.to_vec() + }; + + let mut txs = encode_list(&[dummy_signed_tx()]); + let tx_root = ordered_trie_root(Rlp::new(&txs).iter().map(|r| r.as_raw())); + + let mut rlp = RlpStream::new_list(2); + rlp.append_raw(&txs, 1); + rlp.append_raw(&uncles, 1); + bodies.push(rlp.out()); + + // Construct the block header + let mut header = dummy_header(i, parent_hash); + header.set_transactions_root(tx_root); + header.set_uncles_hash(keccak(&uncles)); + parent_hash = header.hash(); + headers.push(header); + } + + let mut downloader = BlockDownloader::new(BlockSet::NewBlocks, &headers[0].hash(), 0); + downloader.state = State::Blocks; + downloader.blocks.reset_to(vec![headers[0].hash()]); + + // Only import the first three block headers. + let rlp_data = encode_list(&headers[0..3]); + let headers_rlp = Rlp::new(&rlp_data); + assert!(downloader.import_headers(&mut io, &headers_rlp, headers[0].hash()).is_ok()); + + // Import first body successfully. + let mut rlp_data = RlpStream::new_list(1); + rlp_data.append_raw(&bodies[0], 1); + let bodies_rlp = Rlp::new(rlp_data.as_raw()); + assert!(downloader.import_bodies(&bodies_rlp, &[headers[0].hash(), headers[1].hash()]).is_ok()); + + // Import second body successfully. + let mut rlp_data = RlpStream::new_list(1); + rlp_data.append_raw(&bodies[1], 1); + let bodies_rlp = Rlp::new(rlp_data.as_raw()); + assert!(downloader.import_bodies(&bodies_rlp, &[headers[0].hash(), headers[1].hash()]).is_ok()); + + // Import unexpected third body. + let mut rlp_data = RlpStream::new_list(1); + rlp_data.append_raw(&bodies[2], 1); + let bodies_rlp = Rlp::new(rlp_data.as_raw()); + match downloader.import_bodies(&bodies_rlp, &[headers[0].hash(), headers[1].hash()]) { + Err(BlockDownloaderImportError::Invalid) => (), + _ => panic!("expected BlockDownloaderImportError"), + }; + } + + #[test] + fn import_receipts() { + ::env_logger::try_init().ok(); + + let mut chain = TestBlockChainClient::new(); + let snapshot_service = TestSnapshotService::new(); + let queue = RwLock::new(VecDeque::new()); + let mut io = TestIo::new(&mut chain, &snapshot_service, &queue, None); + + // Import block headers. + let mut headers = Vec::with_capacity(4); + let mut receipts = Vec::with_capacity(4); + let mut parent_hash = H256::zero(); + for i in 0..4 { + // Construct the receipts. Receipt root for the first two blocks is the same. + // + // The RLP-encoded integers are clearly not receipts, but the BlockDownloader treats + // all receipts as byte blobs, so it does not matter. + let mut receipts_rlp = if i < 2 { + encode_list(&[0u32]) + } else { + encode_list(&[i as u32]) + }; + let receipts_root = ordered_trie_root(Rlp::new(&receipts_rlp).iter().map(|r| r.as_raw())); + receipts.push(receipts_rlp); + + // Construct the block header. + let mut header = dummy_header(i, parent_hash); + header.set_receipts_root(receipts_root); + parent_hash = header.hash(); + headers.push(header); + } + + let mut downloader = BlockDownloader::new(BlockSet::OldBlocks, &headers[0].hash(), 0); + downloader.state = State::Blocks; + downloader.blocks.reset_to(vec![headers[0].hash()]); + + // Only import the first three block headers. + let rlp_data = encode_list(&headers[0..3]); + let headers_rlp = Rlp::new(&rlp_data); + assert!(downloader.import_headers(&mut io, &headers_rlp, headers[0].hash()).is_ok()); + + // Import second and third receipts successfully. + let mut rlp_data = RlpStream::new_list(2); + rlp_data.append_raw(&receipts[1], 1); + rlp_data.append_raw(&receipts[2], 1); + let receipts_rlp = Rlp::new(rlp_data.as_raw()); + assert!(downloader.import_receipts(&receipts_rlp, &[headers[1].hash(), headers[2].hash()]).is_ok()); + + // Import unexpected fourth receipt. + let mut rlp_data = RlpStream::new_list(1); + rlp_data.append_raw(&receipts[3], 1); + let bodies_rlp = Rlp::new(rlp_data.as_raw()); + match downloader.import_bodies(&bodies_rlp, &[headers[1].hash(), headers[2].hash()]) { + Err(BlockDownloaderImportError::Invalid) => (), + _ => panic!("expected BlockDownloaderImportError"), + }; + } + + #[test] + fn reset_after_multiple_sets_of_useless_headers() { + ::env_logger::try_init().ok(); + + let spec = Spec::new_test(); + let genesis_hash = spec.genesis_header().hash(); + + let mut downloader = BlockDownloader::new(BlockSet::NewBlocks, &genesis_hash, 0); + downloader.state = State::ChainHead; + + let mut chain = TestBlockChainClient::new(); + let snapshot_service = TestSnapshotService::new(); + let queue = RwLock::new(VecDeque::new()); + let mut io = TestIo::new(&mut chain, &snapshot_service, &queue, None); + + let heads = [ + spec.genesis_header(), + dummy_header(127, H256::random()), + dummy_header(254, H256::random()), + ]; + + let short_subchain = [dummy_header(1, genesis_hash)]; + + import_headers_ok(&heads, &mut downloader, &mut io); + import_headers_ok(&short_subchain, &mut downloader, &mut io); + + assert_eq!(downloader.state, State::Blocks); + assert!(!downloader.blocks.is_empty()); + + // simulate receiving useless headers + let head = vec![short_subchain.last().unwrap().clone()]; + for _ in 0..MAX_USELESS_HEADERS_PER_ROUND { + let res = import_headers(&head, &mut downloader, &mut io); + assert!(res.is_err()); + } + + assert_eq!(downloader.state, State::Idle); + assert!(downloader.blocks.is_empty()); + } + + #[test] + fn dont_reset_after_multiple_sets_of_useless_headers_for_chain_head() { + ::env_logger::try_init().ok(); + + let spec = Spec::new_test(); + let genesis_hash = spec.genesis_header().hash(); + + let mut downloader = BlockDownloader::new(BlockSet::NewBlocks, &genesis_hash, 0); + downloader.state = State::ChainHead; + + let mut chain = TestBlockChainClient::new(); + let snapshot_service = TestSnapshotService::new(); + let queue = RwLock::new(VecDeque::new()); + let mut io = TestIo::new(&mut chain, &snapshot_service, &queue, None); + + let heads = [ + spec.genesis_header() + ]; + + let short_subchain = [dummy_header(1, genesis_hash)]; + + import_headers_ok(&heads, &mut downloader, &mut io); + import_headers_ok(&short_subchain, &mut downloader, &mut io); + + assert_eq!(downloader.state, State::Blocks); + assert!(!downloader.blocks.is_empty()); + + // simulate receiving useless headers + let head = vec![short_subchain.last().unwrap().clone()]; + for _ in 0..MAX_USELESS_HEADERS_PER_ROUND { + let res = import_headers(&head, &mut downloader, &mut io); + assert!(res.is_err()); + } + + // download shouldn't be reset since this is the chain head for a single subchain. + // this state usually occurs for NewBlocks when it has reached the chain head. + assert_eq!(downloader.state, State::Blocks); + assert!(!downloader.blocks.is_empty()); + } +} diff --git a/ethcore/sync/src/blocks.rs b/ethcore/sync/src/blocks.rs index 3815084f8f1..c64843e3b2a 100644 --- a/ethcore/sync/src/blocks.rs +++ b/ethcore/sync/src/blocks.rs @@ -215,32 +215,28 @@ impl BlockCollection { } /// Insert a collection of block bodies for previously downloaded headers. - pub fn insert_bodies(&mut self, bodies: Vec) -> usize { - let mut inserted = 0; - for b in bodies { - if let Err(e) = self.insert_body(b) { - trace!(target: "sync", "Ignored invalid body: {:?}", e); - } else { - inserted += 1; - } - } - inserted + pub fn insert_bodies(&mut self, bodies: Vec) -> Vec { + bodies.into_iter() + .filter_map(|b| { + self.insert_body(b) + .map_err(|e| trace!(target: "sync", "Ignored invalid body: {:?}", e)) + .ok() + }) + .collect() } /// Insert a collection of block receipts for previously downloaded headers. - pub fn insert_receipts(&mut self, receipts: Vec) -> usize { + pub fn insert_receipts(&mut self, receipts: Vec) -> Vec> { if !self.need_receipts { - return 0; - } - let mut inserted = 0; - for r in receipts { - if let Err(e) = self.insert_receipt(r) { - trace!(target: "sync", "Ignored invalid receipt: {:?}", e); - } else { - inserted += 1; - } + return Vec::new(); } - inserted + receipts.into_iter() + .filter_map(|r| { + self.insert_receipt(r) + .map_err(|e| trace!(target: "sync", "Ignored invalid receipt: {:?}", e)) + .ok() + }) + .collect() } /// Returns a set of block hashes that require a body download. The returned set is marked as being downloaded. @@ -401,9 +397,9 @@ impl BlockCollection { self.blocks.contains_key(hash) } - /// Check if collection contains a block header. - pub fn contains_head(&self, hash: &H256) -> bool { - self.heads.contains(hash) + /// Check the number of heads + pub fn heads_len(&self) -> usize { + self.heads.len() } /// Return used heap size. @@ -421,7 +417,7 @@ impl BlockCollection { self.downloading_headers.contains(hash) || self.downloading_bodies.contains(hash) } - fn insert_body(&mut self, body: SyncBody) -> Result<(), network::Error> { + fn insert_body(&mut self, body: SyncBody) -> Result { let header_id = { let tx_root = ordered_trie_root(Rlp::new(&body.transactions_bytes).iter().map(|r| r.as_raw())); let uncles = keccak(&body.uncles_bytes); @@ -438,7 +434,7 @@ impl BlockCollection { Some(ref mut block) => { trace!(target: "sync", "Got body {}", h); block.body = Some(body); - Ok(()) + Ok(h) }, None => { warn!("Got body with no header {}", h); @@ -453,7 +449,7 @@ impl BlockCollection { } } - fn insert_receipt(&mut self, r: Bytes) -> Result<(), network::Error> { + fn insert_receipt(&mut self, r: Bytes) -> Result, network::Error> { let receipt_root = { let receipts = Rlp::new(&r); ordered_trie_root(receipts.iter().map(|r| r.as_raw())) @@ -461,7 +457,8 @@ impl BlockCollection { self.downloading_receipts.remove(&receipt_root); match self.receipt_ids.entry(receipt_root) { hash_map::Entry::Occupied(entry) => { - for h in entry.remove() { + let block_hashes = entry.remove(); + for h in block_hashes.iter() { match self.blocks.get_mut(&h) { Some(ref mut block) => { trace!(target: "sync", "Got receipt {}", h); @@ -473,7 +470,7 @@ impl BlockCollection { } } } - Ok(()) + Ok(block_hashes.to_vec()) }, hash_map::Entry::Vacant(_) => { trace!(target: "sync", "Ignored unknown/stale block receipt {:?}", receipt_root); diff --git a/ethcore/sync/src/chain/handler.rs b/ethcore/sync/src/chain/handler.rs index 15f234fbbfe..bbb3db3288e 100644 --- a/ethcore/sync/src/chain/handler.rs +++ b/ethcore/sync/src/chain/handler.rs @@ -28,6 +28,7 @@ use network::PeerId; use rlp::Rlp; use snapshot::ChunkType; use std::cmp; +use std::mem; use std::collections::HashSet; use std::time::Instant; use sync_io::SyncIo; @@ -292,10 +293,19 @@ impl SyncHandler { let block_set = sync.peers.get(&peer_id) .and_then(|p| p.block_set) .unwrap_or(BlockSet::NewBlocks); - if !sync.reset_peer_asking(peer_id, PeerAsking::BlockBodies) { + let allowed = sync.peers.get(&peer_id).map(|p| p.is_allowed()).unwrap_or(false); + + if !sync.reset_peer_asking(peer_id, PeerAsking::BlockBodies) || !allowed { trace!(target: "sync", "{}: Ignored unexpected bodies", peer_id); return Ok(()); } + let expected_blocks = match sync.peers.get_mut(&peer_id) { + Some(peer) => mem::replace(&mut peer.asking_blocks, Vec::new()), + None => { + trace!(target: "sync", "{}: Ignored unexpected bodies (peer not found)", peer_id); + return Ok(()); + } + }; let item_count = r.item_count()?; trace!(target: "sync", "{} -> BlockBodies ({} entries), set = {:?}", peer_id, item_count, block_set); if item_count == 0 { @@ -315,7 +325,7 @@ impl SyncHandler { Some(ref mut blocks) => blocks, } }; - downloader.import_bodies(r)?; + downloader.import_bodies(r, expected_blocks.as_slice())?; } sync.collect_blocks(io, block_set); Ok(()) @@ -368,10 +378,23 @@ impl SyncHandler { let expected_hash = sync.peers.get(&peer_id).and_then(|p| p.asking_hash); let allowed = sync.peers.get(&peer_id).map(|p| p.is_allowed()).unwrap_or(false); let block_set = sync.peers.get(&peer_id).and_then(|p| p.block_set).unwrap_or(BlockSet::NewBlocks); - if !sync.reset_peer_asking(peer_id, PeerAsking::BlockHeaders) || expected_hash.is_none() || !allowed { - trace!(target: "sync", "{}: Ignored unexpected headers, expected_hash = {:?}", peer_id, expected_hash); + + if !sync.reset_peer_asking(peer_id, PeerAsking::BlockHeaders) { + debug!(target: "sync", "{}: Ignored unexpected headers", peer_id); return Ok(()); } + let expected_hash = match expected_hash { + Some(hash) => hash, + None => { + debug!(target: "sync", "{}: Ignored unexpected headers (expected_hash is None)", peer_id); + return Ok(()); + } + }; + if !allowed { + debug!(target: "sync", "{}: Ignored unexpected headers (peer not allowed)", peer_id); + return Ok(()); + } + let item_count = r.item_count()?; trace!(target: "sync", "{} -> BlockHeaders ({} entries), state = {:?}, set = {:?}", peer_id, item_count, sync.state, block_set); if (sync.state == SyncState::Idle || sync.state == SyncState::WaitingPeers) && sync.old_blocks.is_none() { @@ -399,12 +422,8 @@ impl SyncHandler { downloader.import_headers(io, r, expected_hash)? }; - if let DownloadAction::Reset = result { - // mark all outstanding requests as expired - trace!("Resetting downloads for {:?}", block_set); - for (_, ref mut p) in sync.peers.iter_mut().filter(|&(_, ref p)| p.block_set == Some(block_set)) { - p.reset_asking(); - } + if result == DownloadAction::Reset { + sync.reset_downloads(block_set); } sync.collect_blocks(io, block_set); @@ -415,10 +434,18 @@ impl SyncHandler { fn on_peer_block_receipts(sync: &mut ChainSync, io: &mut SyncIo, peer_id: PeerId, r: &Rlp) -> Result<(), DownloaderImportError> { sync.clear_peer_download(peer_id); let block_set = sync.peers.get(&peer_id).and_then(|p| p.block_set).unwrap_or(BlockSet::NewBlocks); - if !sync.reset_peer_asking(peer_id, PeerAsking::BlockReceipts) { + let allowed = sync.peers.get(&peer_id).map(|p| p.is_allowed()).unwrap_or(false); + if !sync.reset_peer_asking(peer_id, PeerAsking::BlockReceipts) || !allowed { trace!(target: "sync", "{}: Ignored unexpected receipts", peer_id); return Ok(()); } + let expected_blocks = match sync.peers.get_mut(&peer_id) { + Some(peer) => mem::replace(&mut peer.asking_blocks, Vec::new()), + None => { + trace!(target: "sync", "{}: Ignored unexpected bodies (peer not found)", peer_id); + return Ok(()); + } + }; let item_count = r.item_count()?; trace!(target: "sync", "{} -> BlockReceipts ({} entries)", peer_id, item_count); if item_count == 0 { @@ -438,7 +465,7 @@ impl SyncHandler { Some(ref mut blocks) => blocks, } }; - downloader.import_receipts(io, r)?; + downloader.import_receipts(r, expected_blocks.as_slice())?; } sync.collect_blocks(io, block_set); Ok(()) diff --git a/ethcore/sync/src/chain/mod.rs b/ethcore/sync/src/chain/mod.rs index 8941437b705..f5a0e30b8da 100644 --- a/ethcore/sync/src/chain/mod.rs +++ b/ethcore/sync/src/chain/mod.rs @@ -109,7 +109,7 @@ use ethcore::client::{BlockChainClient, BlockStatus, BlockId, BlockChainInfo, Bl use ethcore::snapshot::{RestorationStatus}; use sync_io::SyncIo; use super::{WarpSync, SyncConfig}; -use block_sync::{BlockDownloader, BlockDownloaderImportError as DownloaderImportError}; +use block_sync::{BlockDownloader, DownloadAction}; use rand::Rng; use snapshot::{Snapshot}; use api::{EthProtocolInfo as PeerInfoDigest, WARP_SYNC_PROTOCOL_ID}; @@ -429,7 +429,7 @@ impl ChainSync { peers: HashMap::new(), handshaking_peers: HashMap::new(), active_peers: HashSet::new(), - new_blocks: BlockDownloader::new(false, &chain_info.best_block_hash, chain_info.best_block_number), + new_blocks: BlockDownloader::new(BlockSet::NewBlocks, &chain_info.best_block_hash, chain_info.best_block_number), old_blocks: None, last_sent_block_number: 0, network_id: config.network_id, @@ -638,13 +638,13 @@ impl ChainSync { pub fn update_targets(&mut self, chain: &BlockChainClient) { // Do not assume that the block queue/chain still has our last_imported_block let chain = chain.chain_info(); - self.new_blocks = BlockDownloader::new(false, &chain.best_block_hash, chain.best_block_number); + self.new_blocks = BlockDownloader::new(BlockSet::NewBlocks, &chain.best_block_hash, chain.best_block_number); self.old_blocks = None; if self.download_old_blocks { if let (Some(ancient_block_hash), Some(ancient_block_number)) = (chain.ancient_block_hash, chain.ancient_block_number) { trace!(target: "sync", "Downloading old blocks from {:?} (#{}) till {:?} (#{:?})", ancient_block_hash, ancient_block_number, chain.first_block_hash, chain.first_block_number); - let mut downloader = BlockDownloader::with_unlimited_reorg(true, &ancient_block_hash, ancient_block_number); + let mut downloader = BlockDownloader::new(BlockSet::OldBlocks, &ancient_block_hash, ancient_block_number); if let Some(hash) = chain.first_block_hash { trace!(target: "sync", "Downloader target set to {:?}", hash); downloader.set_target(&hash); @@ -763,12 +763,10 @@ impl ChainSync { } } - // Only ask for old blocks if the peer has a higher difficulty than the last imported old block - let last_imported_old_block_difficulty = self.old_blocks.as_mut().and_then(|d| { - io.chain().block_total_difficulty(BlockId::Number(d.last_imported_block_number())) - }); + // Only ask for old blocks if the peer has an equal or higher difficulty + let equal_or_higher_difficulty = peer_difficulty.map_or(false, |pd| pd >= syncing_difficulty); - if force || last_imported_old_block_difficulty.map_or(true, |ld| peer_difficulty.map_or(true, |pd| pd > ld)) { + if force || equal_or_higher_difficulty { if let Some(request) = self.old_blocks.as_mut().and_then(|d| d.request_blocks(io, num_active_peers)) { SyncRequester::request_blocks(self, io, peer_id, request, BlockSet::OldBlocks); return; @@ -776,9 +774,9 @@ impl ChainSync { } else { trace!( target: "sync", - "peer {:?} is not suitable for requesting old blocks, last_imported_old_block_difficulty={:?}, peer_difficulty={:?}", + "peer {:?} is not suitable for requesting old blocks, syncing_difficulty={:?}, peer_difficulty={:?}", peer_id, - last_imported_old_block_difficulty, + syncing_difficulty, peer_difficulty ); self.deactivate_peer(io, peer_id); @@ -856,18 +854,39 @@ impl ChainSync { fn collect_blocks(&mut self, io: &mut SyncIo, block_set: BlockSet) { match block_set { BlockSet::NewBlocks => { - if self.new_blocks.collect_blocks(io, self.state == SyncState::NewBlocks) == Err(DownloaderImportError::Invalid) { - self.restart(io); + if self.new_blocks.collect_blocks(io, self.state == SyncState::NewBlocks) == DownloadAction::Reset { + self.reset_downloads(block_set); + self.new_blocks.reset(); } }, BlockSet::OldBlocks => { - if self.old_blocks.as_mut().map_or(false, |downloader| { downloader.collect_blocks(io, false) == Err(DownloaderImportError::Invalid) }) { - self.restart(io); - } else if self.old_blocks.as_ref().map_or(false, |downloader| { downloader.is_complete() }) { + let mut is_complete = false; + let mut download_action = DownloadAction::None; + if let Some(downloader) = self.old_blocks.as_mut() { + download_action = downloader.collect_blocks(io, false); + is_complete = downloader.is_complete(); + } + + if download_action == DownloadAction::Reset { + self.reset_downloads(block_set); + if let Some(downloader) = self.old_blocks.as_mut() { + downloader.reset(); + } + } + + if is_complete { trace!(target: "sync", "Background block download is complete"); self.old_blocks = None; } } + }; + } + + /// Mark all outstanding requests as expired + fn reset_downloads(&mut self, block_set: BlockSet) { + trace!(target: "sync", "Resetting downloads for {:?}", block_set); + for (_, ref mut p) in self.peers.iter_mut().filter(|&(_, ref p)| p.block_set == Some(block_set)) { + p.reset_asking(); } } diff --git a/ethcore/sync/src/tests/chain.rs b/ethcore/sync/src/tests/chain.rs index 0b6c8f7c284..06118df66b5 100644 --- a/ethcore/sync/src/tests/chain.rs +++ b/ethcore/sync/src/tests/chain.rs @@ -225,32 +225,28 @@ fn propagate_blocks() { #[test] fn restart_on_malformed_block() { + ::env_logger::try_init().ok(); let mut net = TestNet::new(2); - net.peer(1).chain.add_blocks(10, EachBlockWith::Uncle); - net.peer(1).chain.corrupt_block(6); - net.sync_steps(20); - - assert_eq!(net.peer(0).chain.chain_info().best_block_number, 5); -} - -#[test] -fn restart_on_broken_chain() { - let mut net = TestNet::new(2); - net.peer(1).chain.add_blocks(10, EachBlockWith::Uncle); - net.peer(1).chain.corrupt_block_parent(6); + net.peer(1).chain.add_blocks(5, EachBlockWith::Nothing); + net.peer(1).chain.add_block(EachBlockWith::Nothing, |mut header| { + header.set_extra_data(b"This extra data is way too long to be considered valid".to_vec()); + header + }); net.sync_steps(20); - assert_eq!(net.peer(0).chain.chain_info().best_block_number, 5); + // This gets accepted just fine since the TestBlockChainClient performs no validation. + // Probably remove this test? + assert_eq!(net.peer(0).chain.chain_info().best_block_number, 6); } #[test] -fn high_td_attach() { +fn reject_on_broken_chain() { let mut net = TestNet::new(2); - net.peer(1).chain.add_blocks(10, EachBlockWith::Uncle); + net.peer(1).chain.add_blocks(10, EachBlockWith::Nothing); net.peer(1).chain.corrupt_block_parent(6); net.sync_steps(20); - assert_eq!(net.peer(0).chain.chain_info().best_block_number, 5); + assert_eq!(net.peer(0).chain.chain_info().best_block_number, 0); } #[test]