_ Git - dnsseed-rust/blob - src/main.rs

   1 mod bloom;
   2 mod printer;
   3 mod reader;
   4 mod peer;
   5 mod bgp_client;
   6 mod timeout_stream;
   7 mod datastore;
   8
   9 use std::env;
  10 use std::collections::HashMap;
  11 use std::sync::{Arc, Mutex};
  12 use std::sync::atomic::{Ordering, AtomicBool};
  13 use std::time::{Duration, Instant};
  14 use std::net::{SocketAddr, ToSocketAddrs};
  15
  16 use bitcoin::blockdata::block::Block;
  17 use bitcoin::blockdata::constants::genesis_block;
  18 use bitcoin::hash_types::{BlockHash};
  19 use bitcoin::network::constants::{Network, ServiceFlags};
  20 use bitcoin::network::message::NetworkMessage;
  21 use bitcoin::network::message_blockdata::{GetHeadersMessage, Inventory};
  22 //use bitcoin::util::hash::BitcoinHash;
  23
  24 use printer::{Printer, Stat};
  25 use peer::Peer;
  26 use datastore::{AddressState, Store, U64Setting, RegexSetting};
  27 use timeout_stream::TimeoutStream;
  28 use rand::Rng;
  29 use bgp_client::BGPClient;
  30
  31 use tokio::prelude::*;
  32 use tokio::timer::Delay;
  33
  34 static mut REQUEST_BLOCK: Option<Box<Mutex<Arc<(u64, BlockHash, Block)>>>> = None;
  35 static mut HIGHEST_HEADER: Option<Box<Mutex<(BlockHash, u64)>>> = None;
  36 static mut HEADER_MAP: Option<Box<Mutex<HashMap<BlockHash, u64>>>> = None;
  37 static mut HEIGHT_MAP: Option<Box<Mutex<HashMap<u64, BlockHash>>>> = None;
  38 static mut DATA_STORE: Option<Box<Store>> = None;
  39 static mut PRINTER: Option<Box<Printer>> = None;
  40 static mut TOR_PROXY: Option<SocketAddr> = None;
  41 pub static START_SHUTDOWN: AtomicBool = AtomicBool::new(false);
  42 static SCANNING: AtomicBool = AtomicBool::new(false);
  43
  44 struct PeerState {
  45         request: Arc<(u64, BlockHash, Block)>,
  46         pong_nonce: u64,
  47         node_services: u64,
  48         msg: (String, bool),
  49         fail_reason: AddressState,
  50         recvd_version: bool,
  51         recvd_verack: bool,
  52         recvd_pong: bool,
  53         recvd_addrs: bool,
  54         recvd_block: bool,
  55 }
  56
  57 pub fn scan_node(scan_time: Instant, node: SocketAddr, manual: bool) {
  58         if START_SHUTDOWN.load(Ordering::Relaxed) { return; }
  59         let printer = unsafe { PRINTER.as_ref().unwrap() };
  60         let store = unsafe { DATA_STORE.as_ref().unwrap() };
  61
  62         let mut rng = rand::thread_rng();
  63         let peer_state = Arc::new(Mutex::new(PeerState {
  64                 recvd_version: false,
  65                 recvd_verack: false,
  66                 recvd_pong: false,
  67                 recvd_addrs: false,
  68                 recvd_block: false,
  69                 pong_nonce: rng.gen(),
  70                 node_services: 0,
  71                 fail_reason: AddressState::Timeout,
  72                 msg: (String::new(), false),
  73                 request: Arc::clone(&unsafe { REQUEST_BLOCK.as_ref().unwrap() }.lock().unwrap()),
  74         }));
  75         let err_peer_state = Arc::clone(&peer_state);
  76         let final_peer_state = Arc::clone(&peer_state);
  77
  78         let peer = Delay::new(scan_time).then(move |_| {
  79                 printer.set_stat(Stat::NewConnection);
  80                 let timeout = store.get_u64(U64Setting::RunTimeout);
  81                 Peer::new(node.clone(), unsafe { TOR_PROXY.as_ref().unwrap() }, Duration::from_secs(timeout), printer)
  82         });
  83         tokio::spawn(peer.and_then(move |(mut write, read)| {
  84                 TimeoutStream::new_timeout(read, scan_time + Duration::from_secs(store.get_u64(U64Setting::RunTimeout)))
  85                         .map_err(|_| ()).for_each(move |msg| {
  86                         let mut state_lock = peer_state.lock().unwrap();
  87                         macro_rules! check_set_flag {
  88                                 ($recvd_flag: ident, $msg: expr) => { {
  89                                         if state_lock.$recvd_flag {
  90                                                 state_lock.fail_reason = AddressState::ProtocolViolation;
  91                                                 state_lock.msg = (format!("due to dup {}", $msg), true);
  92                                                 state_lock.$recvd_flag = false;
  93                                                 return future::err(());
  94                                         }
  95                                         state_lock.$recvd_flag = true;
  96                                 } }
  97                         }
  98                         state_lock.fail_reason = AddressState::TimeoutDuringRequest;
  99                         match msg {
 100                                 Some(NetworkMessage::Version(ver)) => {
 101                                         if ver.start_height < 0 || ver.start_height as u64 > state_lock.request.0 + 1008*2 {
 102                                                 state_lock.fail_reason = AddressState::HighBlockCount;
 103                                                 return future::err(());
 104                                         }
 105                                         let safe_ua = ver.user_agent.replace(|c: char| !c.is_ascii() || c < ' ' || c > '~', "");
 106                                         if (ver.start_height as u64) < state_lock.request.0 {
 107                                                 state_lock.msg = (format!("({} < {})", ver.start_height, state_lock.request.0), true);
 108                                                 state_lock.fail_reason = AddressState::LowBlockCount;
 109                                                 return future::err(());
 110                                         }
 111                                         let min_version = store.get_u64(U64Setting::MinProtocolVersion);
 112                                         if (ver.version as u64) < min_version {
 113                                                 state_lock.msg = (format!("({} < {})", ver.version, min_version), true);
 114                                                 state_lock.fail_reason = AddressState::LowVersion;
 115                                                 return future::err(());
 116                                         }
 117                                         if !ver.services.has(ServiceFlags::NETWORK) && !ver.services.has(ServiceFlags::NETWORK_LIMITED) {
 118                                                 state_lock.msg = (format!("({}: services {:x})", safe_ua, ver.services), true);
 119                                                 state_lock.fail_reason = AddressState::NotFullNode;
 120                                                 return future::err(());
 121                                         }
 122                                         if !store.get_regex(RegexSetting::SubverRegex).is_match(&ver.user_agent) {
 123                                                 state_lock.msg = (format!("subver {}", safe_ua), true);
 124                                                 state_lock.fail_reason = AddressState::BadVersion;
 125                                                 return future::err(());
 126                                         }
 127                                         check_set_flag!(recvd_version, "version");
 128                                         state_lock.node_services = ver.services.as_u64();
 129                                         state_lock.msg = (format!("(subver: {})", safe_ua), false);
 130                                         if let Err(_) = write.try_send(NetworkMessage::SendAddrV2) {
 131                                                 return future::err(());
 132                                         }
 133                                         if let Err(_) = write.try_send(NetworkMessage::Verack) {
 134                                                 return future::err(());
 135                                         }
 136                                 },
 137                                 Some(NetworkMessage::Verack) => {
 138                                         check_set_flag!(recvd_verack, "verack");
 139                                         if let Err(_) = write.try_send(NetworkMessage::Ping(state_lock.pong_nonce)) {
 140                                                 return future::err(());
 141                                         }
 142                                 },
 143                                 Some(NetworkMessage::Ping(v)) => {
 144                                         if let Err(_) = write.try_send(NetworkMessage::Pong(v)) {
 145                                                 return future::err(())
 146                                         }
 147                                 },
 148                                 Some(NetworkMessage::Pong(v)) => {
 149                                         if v != state_lock.pong_nonce {
 150                                                 state_lock.fail_reason = AddressState::ProtocolViolation;
 151                                                 state_lock.msg = ("due to invalid pong nonce".to_string(), true);
 152                                                 return future::err(());
 153                                         }
 154                                         check_set_flag!(recvd_pong, "pong");
 155                                         if let Err(_) = write.try_send(NetworkMessage::GetAddr) {
 156                                                 return future::err(());
 157                                         }
 158                                 },
 159                                 Some(NetworkMessage::Addr(addrs)) => {
 160                                         if addrs.len() > 1000 {
 161                                                 state_lock.fail_reason = AddressState::ProtocolViolation;
 162                                                 state_lock.msg = (format!("due to oversized addr: {}", addrs.len()), true);
 163                                                 state_lock.recvd_addrs = false;
 164                                                 return future::err(());
 165                                         }
 166                                         if addrs.len() > 10 {
 167                                                 if !state_lock.recvd_addrs {
 168                                                         if let Err(_) = write.try_send(NetworkMessage::GetData(vec![Inventory::WitnessBlock(state_lock.request.1)])) {
 169                                                                 return future::err(());
 170                                                         }
 171                                                 }
 172                                                 state_lock.recvd_addrs = true;
 173                                         }
 174                                         unsafe { DATA_STORE.as_ref().unwrap() }.add_fresh_nodes(&addrs);
 175                                 },
 176                                 Some(NetworkMessage::AddrV2(addrs)) => {
 177                                         if addrs.len() > 1000 {
 178                                                 state_lock.fail_reason = AddressState::ProtocolViolation;
 179                                                 state_lock.msg = (format!("due to oversized addr: {}", addrs.len()), true);
 180                                                 state_lock.recvd_addrs = false;
 181                                                 return future::err(());
 182                                         }
 183                                         if addrs.len() > 10 {
 184                                                 if !state_lock.recvd_addrs {
 185                                                         if let Err(_) = write.try_send(NetworkMessage::GetData(vec![Inventory::WitnessBlock(state_lock.request.1)])) {
 186                                                                 return future::err(());
 187                                                         }
 188                                                 }
 189                                                 state_lock.recvd_addrs = true;
 190                                         }
 191                                         unsafe { DATA_STORE.as_ref().unwrap() }.add_fresh_nodes_v2(&addrs);
 192                                 },
 193                                 Some(NetworkMessage::Block(block)) => {
 194                                         if block != state_lock.request.2 {
 195                                                 state_lock.fail_reason = AddressState::ProtocolViolation;
 196                                                 state_lock.msg = ("due to bad block".to_string(), true);
 197                                                 return future::err(());
 198                                         }
 199                                         check_set_flag!(recvd_block, "block");
 200                                         return future::err(());
 201                                 },
 202                                 Some(NetworkMessage::Inv(invs)) => {
 203                                         for inv in invs {
 204                                                 match inv {
 205                                                         Inventory::Transaction(_) | Inventory::WitnessTransaction(_) => {
 206                                                                 state_lock.fail_reason = AddressState::EvilNode;
 207                                                                 state_lock.msg = ("due to unrequested inv tx".to_string(), true);
 208                                                                 return future::err(());
 209                                                         }
 210                                                         _ => {},
 211                                                 }
 212                                         }
 213                                 },
 214                                 Some(NetworkMessage::Tx(_)) => {
 215                                         state_lock.fail_reason = AddressState::EvilNode;
 216                                         state_lock.msg = ("due to unrequested transaction".to_string(), true);
 217                                         return future::err(());
 218                                 },
 219                                 Some(NetworkMessage::Unknown { command, .. }) => {
 220                                         if command.as_ref() == "gnop" {
 221                                                 let mut state_lock = err_peer_state.lock().unwrap();
 222                                                 state_lock.msg = (format!("(bad msg type {})", command), true);
 223                                                 state_lock.fail_reason = AddressState::EvilNode;
 224                                                 return future::err(());
 225                                         }
 226                                 },
 227                                 _ => {},
 228                         }
 229                         future::ok(())
 230                 }).then(|_| {
 231                         future::err(())
 232                 })
 233         }).then(move |_: Result<(), ()>| {
 234                 let printer = unsafe { PRINTER.as_ref().unwrap() };
 235                 let store = unsafe { DATA_STORE.as_ref().unwrap() };
 236                 printer.set_stat(Stat::ConnectionClosed);
 237
 238                 let mut state_lock = final_peer_state.lock().unwrap();
 239                 if state_lock.recvd_version && state_lock.recvd_verack && state_lock.recvd_pong &&
 240                                 state_lock.recvd_addrs && state_lock.recvd_block {
 241                         let old_state = store.set_node_state(node, AddressState::Good, state_lock.node_services);
 242                         if manual || (old_state != AddressState::Good && state_lock.msg.0 != "") {
 243                                 printer.add_line(format!("Updating {} from {} to Good {}", node, old_state.to_str(), &state_lock.msg.0), state_lock.msg.1);
 244                         }
 245                 } else {
 246                         assert!(state_lock.fail_reason != AddressState::Good);
 247                         if state_lock.fail_reason == AddressState::TimeoutDuringRequest && state_lock.recvd_version && state_lock.recvd_verack {
 248                                 if !state_lock.recvd_pong {
 249                                         state_lock.fail_reason = AddressState::TimeoutAwaitingPong;
 250                                 } else if !state_lock.recvd_addrs {
 251                                         state_lock.fail_reason = AddressState::TimeoutAwaitingAddr;
 252                                 } else if !state_lock.recvd_block {
 253                                         state_lock.fail_reason = AddressState::TimeoutAwaitingBlock;
 254                                 }
 255                         }
 256                         let old_state = store.set_node_state(node, state_lock.fail_reason, 0);
 257                         if (manual || old_state != state_lock.fail_reason) && state_lock.fail_reason == AddressState::TimeoutDuringRequest {
 258                                 printer.add_line(format!("Updating {} from {} to Timeout During Request (ver: {}, vack: {})",
 259                                         node, old_state.to_str(), state_lock.recvd_version, state_lock.recvd_verack), true);
 260                         } else if manual || (old_state != state_lock.fail_reason && state_lock.msg.0 != "" && state_lock.msg.1) {
 261                                 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);
 262                         }
 263                 }
 264                 future::ok(())
 265         }));
 266 }
 267
 268 fn poll_dnsseeds(bgp_client: Arc<BGPClient>) {
 269         tokio::spawn(future::lazy(|| {
 270                 let printer = unsafe { PRINTER.as_ref().unwrap() };
 271                 let store = unsafe { DATA_STORE.as_ref().unwrap() };
 272
 273                 let mut new_addrs = 0;
 274                 for seed in ["seed.bitcoin.sipa.be", "dnsseed.bitcoin.dashjr.org", "seed.bitcoinstats.com", "seed.bitcoin.jonasschnelli.ch", "seed.btc.petertodd.org", "seed.bitcoin.sprovoost.nl", "dnsseed.emzy.de"].iter() {
 275                         new_addrs += store.add_fresh_addrs((*seed, 8333u16).to_socket_addrs().unwrap_or(Vec::new().into_iter()));
 276                         new_addrs += store.add_fresh_addrs((("x9.".to_string() + seed).as_str(), 8333u16).to_socket_addrs().unwrap_or(Vec::new().into_iter()));
 277                 }
 278                 printer.add_line(format!("Added {} new addresses from other DNS seeds", new_addrs), false);
 279                 Delay::new(Instant::now() + Duration::from_secs(60)).then(|_| {
 280                         let store = unsafe { DATA_STORE.as_ref().unwrap() };
 281                         let dns_future = store.write_dns(Arc::clone(&bgp_client));
 282                         store.save_data().join(dns_future).then(|_| {
 283                                 if !START_SHUTDOWN.load(Ordering::Relaxed) {
 284                                         poll_dnsseeds(bgp_client);
 285                                 } else {
 286                                         bgp_client.disconnect();
 287                                 }
 288                                 future::ok(())
 289                         })
 290                 })
 291         }));
 292 }
 293
 294 fn scan_net() {
 295         tokio::spawn(future::lazy(|| {
 296                 let printer = unsafe { PRINTER.as_ref().unwrap() };
 297                 let store = unsafe { DATA_STORE.as_ref().unwrap() };
 298
 299                 let start_time = Instant::now();
 300                 let mut scan_nodes = store.get_next_scan_nodes();
 301                 printer.add_line(format!("Got {} addresses to scan", scan_nodes.len()), false);
 302                 if !scan_nodes.is_empty() {
 303                         let per_iter_time = Duration::from_millis(datastore::SECS_PER_SCAN_RESULTS * 1000 / scan_nodes.len() as u64);
 304                         let mut iter_time = start_time;
 305
 306                         for node in scan_nodes.drain(..) {
 307                                 scan_node(iter_time, node, false);
 308                                 iter_time += per_iter_time;
 309                         }
 310                 }
 311                 Delay::new(start_time + Duration::from_secs(datastore::SECS_PER_SCAN_RESULTS)).then(move |_| {
 312                         if !START_SHUTDOWN.load(Ordering::Relaxed) {
 313                                 scan_net();
 314                         }
 315                         future::ok(())
 316                 })
 317         }));
 318 }
 319
 320 fn make_trusted_conn(trusted_sockaddr: SocketAddr, bgp_client: Arc<BGPClient>) {
 321         let printer = unsafe { PRINTER.as_ref().unwrap() };
 322         let trusted_peer = Peer::new(trusted_sockaddr.clone(), unsafe { TOR_PROXY.as_ref().unwrap() }, Duration::from_secs(600), printer);
 323         let bgp_reload = Arc::clone(&bgp_client);
 324         tokio::spawn(trusted_peer.and_then(move |(mut trusted_write, trusted_read)| {
 325                 printer.add_line("Connected to local peer".to_string(), false);
 326                 let mut starting_height = 0;
 327                 TimeoutStream::new_persistent(trusted_read, Duration::from_secs(600)).map_err(|_| { () }).for_each(move |msg| {
 328                         if START_SHUTDOWN.load(Ordering::Relaxed) {
 329                                 return future::err(());
 330                         }
 331                         match msg {
 332                                 Some(NetworkMessage::Version(ver)) => {
 333                                         if let Err(_) = trusted_write.try_send(NetworkMessage::Verack) {
 334                                                 return future::err(())
 335                                         }
 336                                         starting_height = ver.start_height;
 337                                 },
 338                                 Some(NetworkMessage::Verack) => {
 339                                         if let Err(_) = trusted_write.try_send(NetworkMessage::SendHeaders) {
 340                                                 return future::err(());
 341                                         }
 342                                         if let Err(_) = trusted_write.try_send(NetworkMessage::GetHeaders(GetHeadersMessage {
 343                                                 version: 70015,
 344                                                 locator_hashes: vec![unsafe { HIGHEST_HEADER.as_ref().unwrap() }.lock().unwrap().0.clone()],
 345                                                 stop_hash: Default::default(),
 346                                         })) {
 347                                                 return future::err(());
 348                                         }
 349                                         if let Err(_) = trusted_write.try_send(NetworkMessage::GetAddr) {
 350                                                 return future::err(());
 351                                         }
 352                                 },
 353                                 Some(NetworkMessage::Addr(addrs)) => {
 354                                         unsafe { DATA_STORE.as_ref().unwrap() }.add_fresh_nodes(&addrs);
 355                                 },
 356                                 Some(NetworkMessage::Headers(headers)) => {
 357                                         if headers.is_empty() {
 358                                                 return future::ok(());
 359                                         }
 360                                         let mut header_map = unsafe { HEADER_MAP.as_ref().unwrap() }.lock().unwrap();
 361                                         let mut height_map = unsafe { HEIGHT_MAP.as_ref().unwrap() }.lock().unwrap();
 362
 363                                         if let Some(height) = header_map.get(&headers[0].prev_blockhash).cloned() {
 364                                                 for i in 0..headers.len() {
 365                                                         let hash = headers[i].block_hash();
 366                                                         if i < headers.len() - 1 && headers[i + 1].prev_blockhash != hash {
 367                                                                 return future::err(());
 368                                                         }
 369                                                         header_map.insert(headers[i].block_hash(), height + 1 + (i as u64));
 370                                                         height_map.insert(height + 1 + (i as u64), headers[i].block_hash());
 371                                                 }
 372
 373                                                 let top_height = height + headers.len() as u64;
 374                                                 *unsafe { HIGHEST_HEADER.as_ref().unwrap() }.lock().unwrap()
 375                                                         = (headers.last().unwrap().block_hash(), top_height);
 376                                                 printer.set_stat(printer::Stat::HeaderCount(top_height));
 377
 378                                                 if top_height >= starting_height as u64 {
 379                                                         if let Err(_) = trusted_write.try_send(NetworkMessage::GetData(vec![
 380                                                                         Inventory::WitnessBlock(height_map.get(&(top_height - 216)).unwrap().clone())
 381                                                         ])) {
 382                                                                 return future::err(());
 383                                                         }
 384                                                 }
 385                                         } else {
 386                                                 // Wat? Lets start again...
 387                                                 printer.add_line("Got unconnected headers message from local trusted peer".to_string(), true);
 388                                         }
 389                                         if let Err(_) = trusted_write.try_send(NetworkMessage::GetHeaders(GetHeadersMessage {
 390                                                 version: 70015,
 391                                                 locator_hashes: vec![unsafe { HIGHEST_HEADER.as_ref().unwrap() }.lock().unwrap().0.clone()],
 392                                                 stop_hash: Default::default(),
 393                                         })) {
 394                                                 return future::err(())
 395                                         }
 396                                 },
 397                                 Some(NetworkMessage::Block(block)) => {
 398                                         let hash = block.block_hash();
 399                                         let header_map = unsafe { HEADER_MAP.as_ref().unwrap() }.lock().unwrap();
 400                                         let height = *header_map.get(&hash).expect("Got loose block from trusted peer we coulnd't have requested");
 401                                         if height == unsafe { HIGHEST_HEADER.as_ref().unwrap() }.lock().unwrap().1 - 216 {
 402                                                 *unsafe { REQUEST_BLOCK.as_ref().unwrap() }.lock().unwrap() = Arc::new((height, hash, block));
 403                                                 if !SCANNING.swap(true, Ordering::SeqCst) {
 404                                                         scan_net();
 405                                                         poll_dnsseeds(Arc::clone(&bgp_client));
 406                                                 }
 407                                         }
 408                                 },
 409                                 Some(NetworkMessage::Ping(v)) => {
 410                                         if let Err(_) = trusted_write.try_send(NetworkMessage::Pong(v)) {
 411                                                 return future::err(())
 412                                         }
 413                                 },
 414                                 _ => {},
 415                         }
 416                         future::ok(())
 417                 }).then(|_| {
 418                         future::err(())
 419                 })
 420         }).then(move |_: Result<(), ()>| {
 421                 if !START_SHUTDOWN.load(Ordering::Relaxed) {
 422                         printer.add_line("Lost connection from trusted peer".to_string(), true);
 423                         make_trusted_conn(trusted_sockaddr, bgp_reload);
 424                 }
 425                 future::ok(())
 426         }));
 427 }
 428
 429 fn main() {
 430         if env::args().len() != 6 {
 431                 println!("USAGE: dnsseed-rust datastore localPeerAddress tor_proxy_addr bgp_peer bgp_peer_asn");
 432                 return;
 433         }
 434
 435         unsafe { HEADER_MAP = Some(Box::new(Mutex::new(HashMap::with_capacity(600000)))) };
 436         unsafe { HEIGHT_MAP = Some(Box::new(Mutex::new(HashMap::with_capacity(600000)))) };
 437         unsafe { HEADER_MAP.as_ref().unwrap() }.lock().unwrap().insert(genesis_block(Network::Bitcoin).block_hash(), 0);
 438         unsafe { HEIGHT_MAP.as_ref().unwrap() }.lock().unwrap().insert(0, genesis_block(Network::Bitcoin).block_hash());
 439         unsafe { HIGHEST_HEADER = Some(Box::new(Mutex::new((genesis_block(Network::Bitcoin).block_hash(), 0)))) };
 440         unsafe { REQUEST_BLOCK = Some(Box::new(Mutex::new(Arc::new((0, genesis_block(Network::Bitcoin).block_hash(), genesis_block(Network::Bitcoin)))))) };
 441
 442         let trt = tokio::runtime::Builder::new()
 443                 .blocking_threads(2).core_threads(num_cpus::get().max(1) + 1)
 444                 .build().unwrap();
 445
 446         let _ = trt.block_on_all(future::lazy(|| {
 447                 let mut args = env::args();
 448                 args.next();
 449                 let path = args.next().unwrap();
 450                 let trusted_sockaddr: SocketAddr = args.next().unwrap().parse().unwrap();
 451
 452                 let tor_socks5_sockaddr: SocketAddr = args.next().unwrap().parse().unwrap();
 453                 unsafe { TOR_PROXY = Some(tor_socks5_sockaddr); }
 454
 455                 let bgp_sockaddr: SocketAddr = args.next().unwrap().parse().unwrap();
 456                 let bgp_peerasn: u32 = args.next().unwrap().parse().unwrap();
 457
 458                 Store::new(path).and_then(move |store| {
 459                         unsafe { DATA_STORE = Some(Box::new(store)) };
 460                         let store = unsafe { DATA_STORE.as_ref().unwrap() };
 461                         unsafe { PRINTER = Some(Box::new(Printer::new(store))) };
 462
 463                         let bgp_client = BGPClient::new(bgp_peerasn, bgp_sockaddr, Duration::from_secs(60), unsafe { PRINTER.as_ref().unwrap() });
 464                         make_trusted_conn(trusted_sockaddr, Arc::clone(&bgp_client));
 465
 466                         reader::read(store, unsafe { PRINTER.as_ref().unwrap() }, bgp_client);
 467
 468                         future::ok(())
 469                 }).or_else(|_| {
 470                         future::err(())
 471                 })
 472         }));
 473
 474         tokio::run(future::lazy(|| {
 475                 unsafe { DATA_STORE.as_ref().unwrap() }.save_data()
 476         }));
 477 }