mod printer;
mod reader;
mod peer;
+mod bgp_client;
mod timeout_stream;
mod datastore;
-use std::{cmp, env};
+use std::env;
use std::collections::HashMap;
use std::sync::{Arc, Mutex};
use std::sync::atomic::{Ordering, AtomicBool};
use std::time::{Duration, Instant};
use std::net::{SocketAddr, ToSocketAddrs};
-use bitcoin_hashes::sha256d;
-
use bitcoin::blockdata::block::Block;
use bitcoin::blockdata::constants::genesis_block;
-use bitcoin::network::constants::Network;
+use bitcoin::hash_types::{BlockHash};
+use bitcoin::network::constants::{Network, ServiceFlags};
use bitcoin::network::message::NetworkMessage;
-use bitcoin::network::message_blockdata::{GetHeadersMessage, Inventory, InvType};
+use bitcoin::network::message_blockdata::{GetHeadersMessage, Inventory};
use bitcoin::util::hash::BitcoinHash;
use printer::{Printer, Stat};
use peer::Peer;
use datastore::{AddressState, Store, U64Setting, RegexSetting};
use timeout_stream::TimeoutStream;
+use rand::Rng;
+use bgp_client::BGPClient;
use tokio::prelude::*;
use tokio::timer::Delay;
-static mut REQUEST_BLOCK: Option<Box<Mutex<Arc<(u64, sha256d::Hash, Block)>>>> = None;
-static mut HIGHEST_HEADER: Option<Box<Mutex<(sha256d::Hash, u64)>>> = None;
-static mut HEADER_MAP: Option<Box<Mutex<HashMap<sha256d::Hash, u64>>>> = None;
-static mut HEIGHT_MAP: Option<Box<Mutex<HashMap<u64, sha256d::Hash>>>> = None;
+static mut REQUEST_BLOCK: Option<Box<Mutex<Arc<(u64, BlockHash, Block)>>>> = None;
+static mut HIGHEST_HEADER: Option<Box<Mutex<(BlockHash, u64)>>> = None;
+static mut HEADER_MAP: Option<Box<Mutex<HashMap<BlockHash, u64>>>> = None;
+static mut HEIGHT_MAP: Option<Box<Mutex<HashMap<u64, BlockHash>>>> = None;
static mut DATA_STORE: Option<Box<Store>> = None;
static mut PRINTER: Option<Box<Printer>> = None;
+static mut TOR_PROXY: Option<SocketAddr> = None;
pub static START_SHUTDOWN: AtomicBool = AtomicBool::new(false);
static SCANNING: AtomicBool = AtomicBool::new(false);
struct PeerState {
- request: Arc<(u64, sha256d::Hash, Block)>,
+ request: Arc<(u64, BlockHash, Block)>,
node_services: u64,
msg: (String, bool),
fail_reason: AddressState,
recvd_version: bool,
recvd_verack: bool,
+ recvd_pong: bool,
recvd_addrs: bool,
recvd_block: bool,
+ pong_nonce: u64,
}
pub fn scan_node(scan_time: Instant, node: SocketAddr, manual: bool) {
let printer = unsafe { PRINTER.as_ref().unwrap() };
let store = unsafe { DATA_STORE.as_ref().unwrap() };
+ let mut rng = rand::thread_rng();
let peer_state = Arc::new(Mutex::new(PeerState {
recvd_version: false,
recvd_verack: false,
+ recvd_pong: false,
recvd_addrs: false,
recvd_block: false,
+ pong_nonce: rng.gen(),
node_services: 0,
fail_reason: AddressState::Timeout,
msg: (String::new(), false),
request: Arc::clone(&unsafe { REQUEST_BLOCK.as_ref().unwrap() }.lock().unwrap()),
}));
+ let err_peer_state = Arc::clone(&peer_state);
let final_peer_state = Arc::clone(&peer_state);
let peer = Delay::new(scan_time).then(move |_| {
printer.set_stat(Stat::NewConnection);
let timeout = store.get_u64(U64Setting::RunTimeout);
- Peer::new(node.clone(), Duration::from_secs(timeout), printer)
+ Peer::new(node.clone(), unsafe { TOR_PROXY.as_ref().unwrap() }, Duration::from_secs(timeout), printer)
});
tokio::spawn(peer.and_then(move |(mut write, read)| {
- TimeoutStream::new_timeout(read, scan_time + Duration::from_secs(store.get_u64(U64Setting::RunTimeout))).map_err(|_| { () }).for_each(move |msg| {
+ TimeoutStream::new_timeout(read, scan_time + Duration::from_secs(store.get_u64(U64Setting::RunTimeout))).map_err(move |err| {
+ match err {
+ bitcoin::consensus::encode::Error::UnrecognizedNetworkCommand(ref msg) => {
+ // If we got here, we hit one of the explicitly disallowed messages indicating
+ // a bogus "node".
+ let mut state_lock = err_peer_state.lock().unwrap();
+ state_lock.msg = (format!("(bad msg type {})", msg), true);
+ state_lock.fail_reason = AddressState::EvilNode;
+ },
+ _ => {},
+ }
+ ()
+ }).for_each(move |msg| {
let mut state_lock = peer_state.lock().unwrap();
macro_rules! check_set_flag {
($recvd_flag: ident, $msg: expr) => { {
}
state_lock.fail_reason = AddressState::TimeoutDuringRequest;
match msg {
- NetworkMessage::Version(ver) => {
+ Some(NetworkMessage::Version(ver)) => {
if ver.start_height < 0 || ver.start_height as u64 > state_lock.request.0 + 1008*2 {
state_lock.fail_reason = AddressState::HighBlockCount;
return future::err(());
state_lock.fail_reason = AddressState::LowVersion;
return future::err(());
}
- if ver.services & (1 | (1 << 10)) == 0 {
+ if !ver.services.has(ServiceFlags::NETWORK) && !ver.services.has(ServiceFlags::NETWORK_LIMITED) {
state_lock.msg = (format!("({}: services {:x})", safe_ua, ver.services), true);
state_lock.fail_reason = AddressState::NotFullNode;
return future::err(());
return future::err(());
}
check_set_flag!(recvd_version, "version");
- state_lock.node_services = ver.services;
+ state_lock.node_services = ver.services.as_u64();
state_lock.msg = (format!("(subver: {})", safe_ua), false);
if let Err(_) = write.try_send(NetworkMessage::Verack) {
return future::err(());
}
},
- NetworkMessage::Verack => {
+ Some(NetworkMessage::Verack) => {
check_set_flag!(recvd_verack, "verack");
- if let Err(_) = write.try_send(NetworkMessage::GetAddr) {
+ if let Err(_) = write.try_send(NetworkMessage::Ping(state_lock.pong_nonce)) {
return future::err(());
}
},
- NetworkMessage::Ping(v) => {
+ Some(NetworkMessage::Ping(v)) => {
if let Err(_) = write.try_send(NetworkMessage::Pong(v)) {
return future::err(())
}
},
- NetworkMessage::Addr(addrs) => {
+ Some(NetworkMessage::Pong(v)) => {
+ if v != state_lock.pong_nonce {
+ state_lock.fail_reason = AddressState::ProtocolViolation;
+ state_lock.msg = ("due to invalid pong nonce".to_string(), true);
+ return future::err(());
+ }
+ check_set_flag!(recvd_pong, "pong");
+ if let Err(_) = write.try_send(NetworkMessage::GetAddr) {
+ return future::err(());
+ }
+ },
+ Some(NetworkMessage::Addr(addrs)) => {
if addrs.len() > 1000 {
state_lock.fail_reason = AddressState::ProtocolViolation;
state_lock.msg = (format!("due to oversized addr: {}", addrs.len()), true);
state_lock.recvd_addrs = false;
return future::err(());
}
- if !state_lock.recvd_addrs {
- if let Err(_) = write.try_send(NetworkMessage::GetData(vec![Inventory {
- inv_type: InvType::WitnessBlock,
- hash: state_lock.request.1,
- }])) {
- return future::err(());
+ if addrs.len() > 10 {
+ if !state_lock.recvd_addrs {
+ if let Err(_) = write.try_send(NetworkMessage::GetData(vec![Inventory::WitnessBlock(state_lock.request.1)])) {
+ return future::err(());
+ }
}
+ state_lock.recvd_addrs = true;
}
- state_lock.recvd_addrs = true;
unsafe { DATA_STORE.as_ref().unwrap() }.add_fresh_nodes(&addrs);
},
- NetworkMessage::Block(block) => {
+ Some(NetworkMessage::Block(block)) => {
if block != state_lock.request.2 {
state_lock.fail_reason = AddressState::ProtocolViolation;
state_lock.msg = ("due to bad block".to_string(), true);
return future::err(());
}
check_set_flag!(recvd_block, "block");
+ return future::err(());
+ },
+ Some(NetworkMessage::Inv(invs)) => {
+ for inv in invs {
+ match inv {
+ Inventory::Transaction(_) | Inventory::WitnessTransaction(_) => {
+ state_lock.fail_reason = AddressState::EvilNode;
+ state_lock.msg = ("due to unrequested inv tx".to_string(), true);
+ return future::err(());
+ }
+ _ => {},
+ }
+ }
+ },
+ Some(NetworkMessage::Tx(_)) => {
+ state_lock.fail_reason = AddressState::EvilNode;
+ state_lock.msg = ("due to unrequested transaction".to_string(), true);
+ return future::err(());
},
_ => {},
}
let store = unsafe { DATA_STORE.as_ref().unwrap() };
printer.set_stat(Stat::ConnectionClosed);
- let state_lock = final_peer_state.lock().unwrap();
- if state_lock.recvd_version && state_lock.recvd_verack &&
+ let mut state_lock = final_peer_state.lock().unwrap();
+ if state_lock.recvd_version && state_lock.recvd_verack && state_lock.recvd_pong &&
state_lock.recvd_addrs && state_lock.recvd_block {
let old_state = store.set_node_state(node, AddressState::Good, state_lock.node_services);
if manual || (old_state != AddressState::Good && state_lock.msg.0 != "") {
}
} else {
assert!(state_lock.fail_reason != AddressState::Good);
+ if state_lock.fail_reason == AddressState::TimeoutDuringRequest && state_lock.recvd_version && state_lock.recvd_verack {
+ if !state_lock.recvd_pong {
+ state_lock.fail_reason = AddressState::TimeoutAwaitingPong;
+ } else if !state_lock.recvd_addrs {
+ state_lock.fail_reason = AddressState::TimeoutAwaitingAddr;
+ } else if !state_lock.recvd_block {
+ state_lock.fail_reason = AddressState::TimeoutAwaitingBlock;
+ }
+ }
let old_state = store.set_node_state(node, state_lock.fail_reason, 0);
if (manual || old_state != state_lock.fail_reason) && state_lock.fail_reason == AddressState::TimeoutDuringRequest {
- printer.add_line(format!("Updating {} from {} to Timeout During Request (ver: {}, vack: {}, addr: {}, block: {})",
- node, old_state.to_str(), state_lock.recvd_version, state_lock.recvd_verack, state_lock.recvd_addrs, state_lock.recvd_block), true);
+ printer.add_line(format!("Updating {} from {} to Timeout During Request (ver: {}, vack: {})",
+ node, old_state.to_str(), state_lock.recvd_version, state_lock.recvd_verack), true);
} else if manual || (old_state != state_lock.fail_reason && state_lock.msg.0 != "" && state_lock.msg.1) {
printer.add_line(format!("Updating {} from {} to {} {}", node, old_state.to_str(), state_lock.fail_reason.to_str(), &state_lock.msg.0), state_lock.msg.1);
}
}));
}
-fn poll_dnsseeds() {
+fn poll_dnsseeds(bgp_client: Arc<BGPClient>) {
tokio::spawn(future::lazy(|| {
let printer = unsafe { PRINTER.as_ref().unwrap() };
let store = unsafe { DATA_STORE.as_ref().unwrap() };
}
printer.add_line(format!("Added {} new addresses from other DNS seeds", new_addrs), false);
Delay::new(Instant::now() + Duration::from_secs(60)).then(|_| {
- if !START_SHUTDOWN.load(Ordering::Relaxed) {
- poll_dnsseeds();
- }
- future::ok(())
+ let store = unsafe { DATA_STORE.as_ref().unwrap() };
+ let dns_future = store.write_dns(Arc::clone(&bgp_client));
+ store.save_data().join(dns_future).then(|_| {
+ if !START_SHUTDOWN.load(Ordering::Relaxed) {
+ poll_dnsseeds(bgp_client);
+ } else {
+ bgp_client.disconnect();
+ }
+ future::ok(())
+ })
})
}));
}
fn scan_net() {
tokio::spawn(future::lazy(|| {
+ let printer = unsafe { PRINTER.as_ref().unwrap() };
let store = unsafe { DATA_STORE.as_ref().unwrap() };
- let mut scan_nodes = store.get_next_scan_nodes();
- let per_iter_time = Duration::from_millis(1000 / store.get_u64(U64Setting::ConnsPerSec));
let start_time = Instant::now();
- let mut iter_time = start_time;
+ let mut scan_nodes = store.get_next_scan_nodes();
+ printer.add_line(format!("Got {} addresses to scan", scan_nodes.len()), false);
+ if !scan_nodes.is_empty() {
+ let per_iter_time = Duration::from_millis(datastore::SECS_PER_SCAN_RESULTS * 1000 / scan_nodes.len() as u64);
+ let mut iter_time = start_time;
- for node in scan_nodes.drain(..) {
- scan_node(iter_time, node, false);
- iter_time += per_iter_time;
+ for node in scan_nodes.drain(..) {
+ scan_node(iter_time, node, false);
+ iter_time += per_iter_time;
+ }
}
- Delay::new(cmp::max(iter_time, start_time + Duration::from_secs(15))).then(|_| {
- let store = unsafe { DATA_STORE.as_ref().unwrap() };
- store.save_data().then(|_| {
- if !START_SHUTDOWN.load(Ordering::Relaxed) {
- scan_net();
- }
- future::ok(())
- })
+ Delay::new(start_time + Duration::from_secs(datastore::SECS_PER_SCAN_RESULTS)).then(move |_| {
+ if !START_SHUTDOWN.load(Ordering::Relaxed) {
+ scan_net();
+ }
+ future::ok(())
})
}));
}
-fn make_trusted_conn(trusted_sockaddr: SocketAddr) {
+fn make_trusted_conn(trusted_sockaddr: SocketAddr, bgp_client: Arc<BGPClient>) {
let printer = unsafe { PRINTER.as_ref().unwrap() };
- let trusted_peer = Peer::new(trusted_sockaddr.clone(), Duration::from_secs(600), printer);
+ let trusted_peer = Peer::new(trusted_sockaddr.clone(), unsafe { TOR_PROXY.as_ref().unwrap() }, Duration::from_secs(600), printer);
+ let bgp_reload = Arc::clone(&bgp_client);
tokio::spawn(trusted_peer.and_then(move |(mut trusted_write, trusted_read)| {
printer.add_line("Connected to local peer".to_string(), false);
let mut starting_height = 0;
return future::err(());
}
match msg {
- NetworkMessage::Version(ver) => {
+ Some(NetworkMessage::Version(ver)) => {
if let Err(_) = trusted_write.try_send(NetworkMessage::Verack) {
return future::err(())
}
starting_height = ver.start_height;
},
- NetworkMessage::Verack => {
+ Some(NetworkMessage::Verack) => {
if let Err(_) = trusted_write.try_send(NetworkMessage::SendHeaders) {
return future::err(());
}
return future::err(());
}
},
- NetworkMessage::Addr(addrs) => {
+ Some(NetworkMessage::Addr(addrs)) => {
unsafe { DATA_STORE.as_ref().unwrap() }.add_fresh_nodes(&addrs);
},
- NetworkMessage::Headers(headers) => {
+ Some(NetworkMessage::Headers(headers)) => {
if headers.is_empty() {
return future::ok(());
}
printer.set_stat(printer::Stat::HeaderCount(top_height));
if top_height >= starting_height as u64 {
- if let Err(_) = trusted_write.try_send(NetworkMessage::GetData(vec![Inventory {
- inv_type: InvType::WitnessBlock,
- hash: height_map.get(&(top_height - 1008)).unwrap().clone(),
- }])) {
+ if let Err(_) = trusted_write.try_send(NetworkMessage::GetData(vec![
+ Inventory::WitnessBlock(height_map.get(&(top_height - 216)).unwrap().clone())
+ ])) {
return future::err(());
}
}
return future::err(())
}
},
- NetworkMessage::Block(block) => {
+ Some(NetworkMessage::Block(block)) => {
let hash = block.header.bitcoin_hash();
let header_map = unsafe { HEADER_MAP.as_ref().unwrap() }.lock().unwrap();
let height = *header_map.get(&hash).expect("Got loose block from trusted peer we coulnd't have requested");
- if height == unsafe { HIGHEST_HEADER.as_ref().unwrap() }.lock().unwrap().1 - 1008 {
+ if height == unsafe { HIGHEST_HEADER.as_ref().unwrap() }.lock().unwrap().1 - 216 {
*unsafe { REQUEST_BLOCK.as_ref().unwrap() }.lock().unwrap() = Arc::new((height, hash, block));
if !SCANNING.swap(true, Ordering::SeqCst) {
scan_net();
- poll_dnsseeds();
+ poll_dnsseeds(Arc::clone(&bgp_client));
}
}
},
- NetworkMessage::Ping(v) => {
+ Some(NetworkMessage::Ping(v)) => {
if let Err(_) = trusted_write.try_send(NetworkMessage::Pong(v)) {
return future::err(())
}
}).then(move |_: Result<(), ()>| {
if !START_SHUTDOWN.load(Ordering::Relaxed) {
printer.add_line("Lost connection from trusted peer".to_string(), true);
- make_trusted_conn(trusted_sockaddr);
+ make_trusted_conn(trusted_sockaddr, bgp_reload);
}
future::ok(())
}));
}
fn main() {
- if env::args().len() != 3 {
- println!("USAGE: dnsseed-rust datastore localPeerAddress");
+ if env::args().len() != 5 {
+ println!("USAGE: dnsseed-rust datastore localPeerAddress tor_proxy_addr bgp_peer");
return;
}
unsafe { REQUEST_BLOCK = Some(Box::new(Mutex::new(Arc::new((0, genesis_block(Network::Bitcoin).bitcoin_hash(), genesis_block(Network::Bitcoin)))))) };
let trt = tokio::runtime::Builder::new()
- .blocking_threads(2).core_threads(num_cpus::get().max(1) * 3)
+ .blocking_threads(2).core_threads(num_cpus::get().max(1) * 2)
.build().unwrap();
let _ = trt.block_on_all(future::lazy(|| {
let mut args = env::args();
args.next();
let path = args.next().unwrap();
- let addr = args.next().unwrap();
+ let trusted_sockaddr: SocketAddr = args.next().unwrap().parse().unwrap();
+
+ let tor_socks5_sockaddr: SocketAddr = args.next().unwrap().parse().unwrap();
+ unsafe { TOR_PROXY = Some(tor_socks5_sockaddr); }
+
+ let bgp_sockaddr: SocketAddr = args.next().unwrap().parse().unwrap();
Store::new(path).and_then(move |store| {
unsafe { DATA_STORE = Some(Box::new(store)) };
let store = unsafe { DATA_STORE.as_ref().unwrap() };
unsafe { PRINTER = Some(Box::new(Printer::new(store))) };
- let trusted_sockaddr: SocketAddr = addr.parse().unwrap();
- make_trusted_conn(trusted_sockaddr);
+ let bgp_client = BGPClient::new(bgp_sockaddr, Duration::from_secs(60), unsafe { PRINTER.as_ref().unwrap() });
+ make_trusted_conn(trusted_sockaddr, Arc::clone(&bgp_client));
- reader::read(store, unsafe { PRINTER.as_ref().unwrap() });
+ reader::read(store, unsafe { PRINTER.as_ref().unwrap() }, bgp_client);
future::ok(())
}).or_else(|_| {
projects / dnsseed-rust / blobdiff