X-Git-Url: http://git.bitcoin.ninja/index.cgi?p=dnsseed-rust;a=blobdiff_plain;f=src%2Fmain.rs;h=be27835cf6b0df05fbd637b6f713deac21d76572;hp=ac1b0d4cdb458943f84a1edb46e144ae6000123c;hb=b161100d1919c1d4c678d91a1f49ecca1747327e;hpb=405c10047bad68f7f2fabcf975ca0574444a7d47 diff --git a/src/main.rs b/src/main.rs index ac1b0d4..be27835 100644 --- a/src/main.rs +++ b/src/main.rs @@ -1,13 +1,15 @@ mod printer; +mod reader; mod peer; mod timeout_stream; mod datastore; -use std::env; +use std::{cmp, 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; +use std::net::{SocketAddr, ToSocketAddrs}; use bitcoin_hashes::sha256d; @@ -20,6 +22,7 @@ use bitcoin::util::hash::BitcoinHash; use printer::{Printer, Stat}; use peer::Peer; use datastore::{AddressState, Store, U64Setting, RegexSetting}; +use timeout_stream::TimeoutStream; use tokio::prelude::*; use tokio::timer::Delay; @@ -29,18 +32,22 @@ static mut HEADER_MAP: Option>>> = None; static mut HEIGHT_MAP: Option>>> = None; static mut DATA_STORE: Option> = None; static mut PRINTER: Option> = None; +pub static START_SHUTDOWN: AtomicBool = AtomicBool::new(false); +static SCANNING: AtomicBool = AtomicBool::new(false); struct PeerState { + request: (u64, sha256d::Hash), + node_services: u64, + msg: (String, bool), + fail_reason: AddressState, recvd_version: bool, recvd_verack: bool, recvd_addrs: bool, recvd_block: bool, - node_services: u64, - fail_reason: AddressState, - request: (u64, sha256d::Hash), } -fn scan_node(scan_time: Instant, node: SocketAddr) { +pub fn scan_node(scan_time: Instant, node: SocketAddr) { + if START_SHUTDOWN.load(Ordering::Relaxed) { return; } let printer = unsafe { PRINTER.as_ref().unwrap() }; let store = unsafe { DATA_STORE.as_ref().unwrap() }; @@ -51,6 +58,7 @@ fn scan_node(scan_time: Instant, node: SocketAddr) { recvd_block: false, node_services: 0, fail_reason: AddressState::Timeout, + msg: (String::new(), false), request: (0, Default::default()), })); let final_peer_state = Arc::clone(&peer_state); @@ -58,21 +66,20 @@ fn scan_node(scan_time: Instant, node: SocketAddr) { 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) //TODO: timeout for total run + Peer::new(node.clone(), Duration::from_secs(timeout), printer) }); - tokio::spawn(peer.and_then(move |conn_split| { + tokio::spawn(peer.and_then(move |(mut write, read)| { let requested_height = unsafe { HIGHEST_HEADER.as_ref().unwrap() }.lock().unwrap().1 - 1008; let requested_block = unsafe { HEIGHT_MAP.as_ref().unwrap() }.lock().unwrap().get(&requested_height).unwrap().clone(); peer_state.lock().unwrap().request = (requested_height, requested_block); - let (mut write, read) = conn_split; - read.map_err(|_| { () }).for_each(move |msg| { + TimeoutStream::new_timeout(read, scan_time + Duration::from_secs(store.get_u64(U64Setting::RunTimeout))).map_err(|_| { () }).for_each(move |msg| { let mut state_lock = peer_state.lock().unwrap(); macro_rules! check_set_flag { ($recvd_flag: ident, $msg: expr) => { { if state_lock.$recvd_flag { state_lock.fail_reason = AddressState::ProtocolViolation; - printer.add_line(format!("Updating {} to ProtocolViolation due to dup {}", node, $msg), true); + state_lock.msg = (format!("ProtocolViolation due to dup {}", $msg), true); state_lock.$recvd_flag = false; return future::err(()); } @@ -86,29 +93,31 @@ fn scan_node(scan_time: Instant, node: SocketAddr) { state_lock.fail_reason = AddressState::HighBlockCount; return future::err(()); } + let safe_ua = ver.user_agent.replace(|c: char| !c.is_ascii() || c < ' ' || c > '~', ""); if (ver.start_height as u64) < state_lock.request.0 { - printer.add_line(format!("Updating {} to LowBlockCount ({} < {})", node, ver.start_height, state_lock.request.0), true); + state_lock.msg = (format!("LowBlockCount ({} < {})", ver.start_height, state_lock.request.0), true); state_lock.fail_reason = AddressState::LowBlockCount; return future::err(()); } let min_version = store.get_u64(U64Setting::MinProtocolVersion); if (ver.version as u64) < min_version { - printer.add_line(format!("Updating {} to LowVersion ({} < {})", node, ver.version, min_version), true); + state_lock.msg = (format!("LowVersion ({} < {})", ver.version, min_version), true); state_lock.fail_reason = AddressState::LowVersion; return future::err(()); } - if ver.services & 1 != 1 { - printer.add_line(format!("Updating {} to NotFullNode (services {:x})", node, ver.services), true); + if ver.services & (1 | (1 << 10)) == 0 { + state_lock.msg = (format!("NotFullNode ({}: services {:x})", safe_ua, ver.services), true); state_lock.fail_reason = AddressState::NotFullNode; return future::err(()); } if !store.get_regex(RegexSetting::SubverRegex).is_match(&ver.user_agent) { - printer.add_line(format!("Updating {} to BadVersion subver {}", node, ver.user_agent.replace(|c: char| !c.is_ascii() || c < ' ' || c > '~', "")), true); + state_lock.msg = (format!("BadVersion subver {}", safe_ua), true); state_lock.fail_reason = AddressState::BadVersion; return future::err(()); } check_set_flag!(recvd_version, "version"); state_lock.node_services = ver.services; + state_lock.msg = (format!("to Good: {}", safe_ua), false); if let Err(_) = write.try_send(NetworkMessage::Verack) { return future::err(()); } @@ -118,12 +127,6 @@ fn scan_node(scan_time: Instant, node: SocketAddr) { if let Err(_) = write.try_send(NetworkMessage::GetAddr) { return future::err(()); } - if let Err(_) = write.try_send(NetworkMessage::GetData(vec![Inventory { - inv_type: InvType::WitnessBlock, - hash: state_lock.request.1, - }])) { - return future::err(()); - } }, NetworkMessage::Ping(v) => { if let Err(_) = write.try_send(NetworkMessage::Pong(v)) { @@ -131,6 +134,20 @@ fn scan_node(scan_time: Instant, node: SocketAddr) { } }, NetworkMessage::Addr(addrs) => { + if addrs.len() > 1000 { + state_lock.fail_reason = AddressState::ProtocolViolation; + state_lock.msg = (format!("ProtocolViolation 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(()); + } + } state_lock.recvd_addrs = true; unsafe { DATA_STORE.as_ref().unwrap() }.add_fresh_nodes(&addrs); }, @@ -138,7 +155,7 @@ fn scan_node(scan_time: Instant, node: SocketAddr) { if block.header.bitcoin_hash() != state_lock.request.1 || !block.check_merkle_root() || !block.check_witness_commitment() { state_lock.fail_reason = AddressState::ProtocolViolation; - printer.add_line(format!("Updating {} to ProtocolViolation due to bad block", node), true); + state_lock.msg = ("ProtocolViolation due to bad block".to_string(), true); return future::err(()); } check_set_flag!(recvd_block, "block"); @@ -157,30 +174,60 @@ fn scan_node(scan_time: Instant, node: SocketAddr) { let state_lock = final_peer_state.lock().unwrap(); if state_lock.recvd_version && state_lock.recvd_verack && state_lock.recvd_addrs && state_lock.recvd_block { - store.set_node_state(node, AddressState::Good, state_lock.node_services); + let old_state = store.set_node_state(node, AddressState::Good, state_lock.node_services); + if old_state != AddressState::Good && state_lock.msg.0 != "" { + printer.add_line(format!("Updating {} from {} to {}", node, old_state.to_str(), &state_lock.msg.0), state_lock.msg.1); + } } else { assert!(state_lock.fail_reason != AddressState::Good); - store.set_node_state(node, state_lock.fail_reason, 0); + let old_state = store.set_node_state(node, state_lock.fail_reason, 0); + if 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.msg.0), state_lock.msg.1); + } } future::ok(()) })); } +fn poll_dnsseeds() { + tokio::spawn(future::lazy(|| { + let printer = unsafe { PRINTER.as_ref().unwrap() }; + let store = unsafe { DATA_STORE.as_ref().unwrap() }; + + let mut new_addrs = 0; + 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() { + new_addrs += store.add_fresh_addrs((*seed, 8333u16).to_socket_addrs().unwrap_or(Vec::new().into_iter())); + new_addrs += store.add_fresh_addrs((("x9.".to_string() + seed).as_str(), 8333u16).to_socket_addrs().unwrap_or(Vec::new().into_iter())); + } + 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(()) + }) + })); +} + fn scan_net() { tokio::spawn(future::lazy(|| { 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 mut iter_time = Instant::now(); + let start_time = Instant::now(); + let mut iter_time = start_time; for node in scan_nodes.drain(..) { scan_node(iter_time, node); iter_time += per_iter_time; } - Delay::new(iter_time).then(|_| { + 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(|_| { - scan_net(); + if !START_SHUTDOWN.load(Ordering::Relaxed) { + scan_net(); + } future::ok(()) }) }) @@ -190,11 +237,13 @@ fn scan_net() { fn make_trusted_conn(trusted_sockaddr: SocketAddr) { let printer = unsafe { PRINTER.as_ref().unwrap() }; let trusted_peer = Peer::new(trusted_sockaddr.clone(), Duration::from_secs(600), printer); - tokio::spawn(trusted_peer.and_then(move |trusted_split| { + tokio::spawn(trusted_peer.and_then(move |(mut trusted_write, trusted_read)| { printer.add_line("Connected to local peer".to_string(), false); - let (mut trusted_write, trusted_read) = trusted_split; let mut starting_height = 0; - trusted_read.map_err(|_| { () }).for_each(move |msg| { + TimeoutStream::new_persistent(trusted_read, Duration::from_secs(600)).map_err(|_| { () }).for_each(move |msg| { + if START_SHUTDOWN.load(Ordering::Relaxed) { + return future::err(()); + } match msg { NetworkMessage::Version(ver) => { if let Err(_) = trusted_write.try_send(NetworkMessage::Verack) { @@ -203,6 +252,9 @@ fn make_trusted_conn(trusted_sockaddr: SocketAddr) { starting_height = ver.start_height; }, NetworkMessage::Verack => { + if let Err(_) = trusted_write.try_send(NetworkMessage::SendHeaders) { + return future::err(()); + } if let Err(_) = trusted_write.try_send(NetworkMessage::GetHeaders(GetHeadersMessage { version: 70015, locator_hashes: vec![unsafe { HIGHEST_HEADER.as_ref().unwrap() }.lock().unwrap().0.clone()], @@ -237,7 +289,10 @@ fn make_trusted_conn(trusted_sockaddr: SocketAddr) { = (headers.last().unwrap().bitcoin_hash(), top_height); printer.set_stat(printer::Stat::HeaderCount(top_height)); if top_height >= starting_height as u64 { - scan_net(); + if !SCANNING.swap(true, Ordering::SeqCst) { + scan_net(); + poll_dnsseeds(); + } } } else { // Wat? Lets start again... @@ -263,8 +318,10 @@ fn make_trusted_conn(trusted_sockaddr: SocketAddr) { future::err(()) }) }).then(move |_: Result<(), ()>| { - printer.add_line("Lost connection from trusted peer".to_string(), true); - make_trusted_conn(trusted_sockaddr); + if !START_SHUTDOWN.load(Ordering::Relaxed) { + printer.add_line("Lost connection from trusted peer".to_string(), true); + make_trusted_conn(trusted_sockaddr); + } future::ok(()) })); } @@ -275,8 +332,8 @@ fn main() { return; } - unsafe { HEADER_MAP = Some(Box::new(Mutex::new(HashMap::new()))) }; - unsafe { HEIGHT_MAP = Some(Box::new(Mutex::new(HashMap::new()))) }; + unsafe { HEADER_MAP = Some(Box::new(Mutex::new(HashMap::with_capacity(600000)))) }; + unsafe { HEIGHT_MAP = Some(Box::new(Mutex::new(HashMap::with_capacity(600000)))) }; unsafe { HEADER_MAP.as_ref().unwrap() }.lock().unwrap().insert(genesis_block(Network::Bitcoin).bitcoin_hash(), 0); unsafe { HEIGHT_MAP.as_ref().unwrap() }.lock().unwrap().insert(0, genesis_block(Network::Bitcoin).bitcoin_hash()); unsafe { HIGHEST_HEADER = Some(Box::new(Mutex::new((genesis_block(Network::Bitcoin).bitcoin_hash(), 0)))) }; @@ -289,14 +346,21 @@ fn main() { Store::new(path).and_then(move |store| { unsafe { DATA_STORE = Some(Box::new(store)) }; - unsafe { PRINTER = Some(Box::new(Printer::new(DATA_STORE.as_ref().unwrap()))) }; + 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); + reader::read(store, unsafe { PRINTER.as_ref().unwrap() }); + future::ok(()) }).or_else(|_| { future::err(()) }) })); + + tokio::run(future::lazy(|| { + unsafe { DATA_STORE.as_ref().unwrap() }.save_data() + })); }