diff --git a/parity/cli.rs b/parity/cli.rs index b826b7eb5..1e1014cb7 100644 --- a/parity/cli.rs +++ b/parity/cli.rs @@ -67,6 +67,10 @@ Networking Options: --no-discovery Disable new peer discovery. --node-key KEY Specify node secret key, either as 64-character hex string or input to SHA3 operation. + --reserved-peers FILE Provide a file containing enodes, one per line. + These nodes will always have a reserved slot on top + of the normal maximum peers. + --reserved-only Connect only to reserved nodes. API and Console Options: --jsonrpc-off Disable the JSON-RPC API server. @@ -238,6 +242,8 @@ pub struct Args { pub flag_no_discovery: bool, pub flag_nat: String, pub flag_node_key: Option, + pub flag_reserved_peers: Option, + pub flag_reserved_only: bool, pub flag_cache_pref_size: usize, pub flag_cache_max_size: usize, pub flag_queue_max_size: usize, diff --git a/parity/configuration.rs b/parity/configuration.rs index 7c42f06e1..e3693d66e 100644 --- a/parity/configuration.rs +++ b/parity/configuration.rs @@ -153,6 +153,26 @@ impl Configuration { } } + pub fn init_reserved_nodes(&self) -> Vec { + use std::fs::File; + use std::io::BufRead; + + if let Some(ref path) = self.args.flag_reserved_peers { + let mut buffer = String::new(); + let mut node_file = File::open(path).unwrap_or_else(|e| { + die!("Error opening reserved nodes file: {}", e); + }); + node_file.read_to_string(&mut buffer).expect("Error reading reserved node file"); + buffer.lines().map(|s| { + Self::normalize_enode(s).unwrap_or_else(|| { + die!("{}: Invalid node address format given for a reserved node.", s); + }) + }).collect() + } else { + Vec::new() + } + } + pub fn net_addresses(&self) -> (Option, Option) { let port = self.net_port(); let listen_address = Some(SocketAddr::new(IpAddr::from_str("0.0.0.0").unwrap(), port)); @@ -179,6 +199,8 @@ impl Configuration { let mut net_path = PathBuf::from(&self.path()); net_path.push("network"); ret.config_path = Some(net_path.to_str().unwrap().to_owned()); + ret.reserved_nodes = self.init_reserved_nodes(); + ret.reserved_only = self.args.flag_reserved_only; ret } diff --git a/parity/main.rs b/parity/main.rs index 9b3698c5c..3ccb7e430 100644 --- a/parity/main.rs +++ b/parity/main.rs @@ -315,10 +315,11 @@ fn execute_export(conf: Configuration) { udp_port: None, nat_enabled: false, discovery_enabled: false, - pin: true, + reserved_only: true, boot_nodes: Vec::new(), use_secret: None, ideal_peers: 0, + reserved_nodes: Vec::new(), }; let client_config = conf.client_config(&spec); @@ -386,10 +387,11 @@ fn execute_import(conf: Configuration) { udp_port: None, nat_enabled: false, discovery_enabled: false, - pin: true, + reserved_only: true, boot_nodes: Vec::new(), use_secret: None, ideal_peers: 0, + reserved_nodes: Vec::new(), }; let client_config = conf.client_config(&spec); diff --git a/rpc/src/v1/impls/ethcore_set.rs b/rpc/src/v1/impls/ethcore_set.rs index b07dcbf9e..cbd9c4309 100644 --- a/rpc/src/v1/impls/ethcore_set.rs +++ b/rpc/src/v1/impls/ethcore_set.rs @@ -74,5 +74,4 @@ impl EthcoreSet for EthcoreSetClient where M: MinerService + 'static { to_value(&true) }) } - } diff --git a/util/src/network/host.rs b/util/src/network/host.rs index aef56fc09..7e4b0c3a0 100644 --- a/util/src/network/host.rs +++ b/util/src/network/host.rs @@ -65,14 +65,16 @@ pub struct NetworkConfiguration { pub nat_enabled: bool, /// Enable discovery pub discovery_enabled: bool, - /// Pin to boot nodes only - pub pin: bool, + /// Pin to reserved nodes only + pub reserved_only: bool, /// List of initial node addresses pub boot_nodes: Vec, /// Use provided node key instead of default pub use_secret: Option, /// Number of connected peers to maintain pub ideal_peers: u32, + /// List of reserved node addresses. + pub reserved_nodes: Vec, } impl Default for NetworkConfiguration { @@ -91,10 +93,11 @@ impl NetworkConfiguration { udp_port: None, nat_enabled: true, discovery_enabled: true, - pin: false, + reserved_only: false, boot_nodes: Vec::new(), use_secret: None, ideal_peers: 25, + reserved_nodes: Vec::new(), } } @@ -216,7 +219,7 @@ impl<'s, Message> NetworkContext<'s, Message> where Message: Send + Sync + Clone pub fn send(&self, peer: PeerId, packet_id: PacketId, data: Vec) -> Result<(), UtilError> { let session = self.resolve_session(peer); if let Some(session) = session { - try!(session.lock().unwrap().deref_mut().send_packet(self.io, self.protocol, packet_id as u8, &data)); + try!(session.lock().unwrap().send_packet(self.io, self.protocol, packet_id as u8, &data)); } else { trace!(target: "network", "Send: Peer no longer exist") } @@ -365,6 +368,9 @@ impl Host where Message: Send + Sync + Clone { let udp_port = config.udp_port.unwrap_or(listen_address.port()); let local_endpoint = NodeEndpoint { address: listen_address, udp_port: udp_port }; + let boot_nodes = config.boot_nodes.clone(); + let reserved_nodes = config.reserved_nodes.clone(); + let mut host = Host:: { info: RwLock::new(HostInfo { keys: keys, @@ -389,21 +395,26 @@ impl Host where Message: Send + Sync + Clone { stopping: AtomicBool::new(false), }; - let boot_nodes = host.info.read().unwrap().config.boot_nodes.clone(); for n in boot_nodes { - host.add_node(&n); + // don't pin boot nodes. + host.add_node(&n, false); + } + + for n in reserved_nodes { + host.add_node(&n, true); } Ok(host) } - pub fn add_node(&mut self, id: &str) { + pub fn add_node(&mut self, id: &str, pin: bool) { match Node::from_str(id) { Err(e) => { debug!(target: "network", "Could not add node {}: {:?}", id, e); }, Ok(n) => { let entry = NodeEntry { endpoint: n.endpoint.clone(), id: n.id.clone() }; - self.pinned_nodes.push(n.id.clone()); + if pin { self.pinned_nodes.push(n.id.clone()) } + self.nodes.write().unwrap().add_node(n); - if let Some(ref mut discovery) = *self.discovery.lock().unwrap().deref_mut() { + if let Some(ref mut discovery) = *self.discovery.lock().unwrap() { discovery.add_node(entry); } } @@ -472,7 +483,7 @@ impl Host where Message: Send + Sync + Clone { // Initialize discovery. let discovery = { let info = self.info.read().unwrap(); - if info.config.discovery_enabled && !info.config.pin { + if info.config.discovery_enabled && !info.config.reserved_only { Some(Discovery::new(&info.keys, public_endpoint.address.clone(), public_endpoint, DISCOVERY)) } else { None } }; @@ -482,7 +493,7 @@ impl Host where Message: Send + Sync + Clone { for n in self.nodes.read().unwrap().unordered_entries() { discovery.add_node(n.clone()); } - *self.discovery.lock().unwrap().deref_mut() = Some(discovery); + *self.discovery.lock().unwrap() = Some(discovery); io.register_stream(DISCOVERY).expect("Error registering UDP listener"); io.register_timer(DISCOVERY_REFRESH, 7200).expect("Error registering discovery timer"); io.register_timer(DISCOVERY_ROUND, 300).expect("Error registering discovery timer"); @@ -529,14 +540,17 @@ impl Host where Message: Send + Sync + Clone { } fn connect_peers(&self, io: &IoContext>) { - if self.info.read().unwrap().deref().capabilities.is_empty() { + if self.info.read().unwrap().capabilities.is_empty() { return; } - let ideal_peers = { self.info.read().unwrap().deref().config.ideal_peers }; - let pin = { self.info.read().unwrap().deref().config.pin }; + let ideal_peers = { self.info.read().unwrap().config.ideal_peers }; + let pin = { self.info.read().unwrap().config.reserved_only }; let session_count = self.session_count(); - if session_count >= ideal_peers as usize { - return; + if session_count >= ideal_peers as usize + self.pinned_nodes.len() { + // check if all pinned nodes are connected. + if self.pinned_nodes.iter().all(|n| self.have_session(n) && self.connecting_to(n)) { + return; + } } let handshake_count = self.handshake_count(); @@ -546,9 +560,16 @@ impl Host where Message: Send + Sync + Clone { return; } - let nodes = if pin { self.pinned_nodes.clone() } else { self.nodes.read().unwrap().nodes() }; + // iterate over all nodes, reserved ones coming first. + // if we are pinned to only reserved nodes, ignore all others. + let nodes = self.pinned_nodes.iter().cloned().chain(if !pin { + self.nodes.read().unwrap().nodes() + } else { + Vec::new() + }); + let mut started: usize = 0; - for id in nodes.iter().filter(|ref id| !self.have_session(id) && !self.connecting_to(id)) + for id in nodes.filter(|ref id| !self.have_session(id) && !self.connecting_to(id)) .take(min(MAX_HANDSHAKES_PER_ROUND, handshake_limit - handshake_count)) { self.connect_peer(&id, io); started += 1; @@ -678,7 +699,7 @@ impl Host where Message: Send + Sync + Clone { self.num_sessions.fetch_add(1, AtomicOrdering::SeqCst); if !s.info.originated { let session_count = self.session_count(); - let ideal_peers = { self.info.read().unwrap().deref().config.ideal_peers }; + let ideal_peers = { self.info.read().unwrap().config.ideal_peers }; if session_count >= ideal_peers as usize { s.disconnect(io, DisconnectReason::TooManyPeers); return; @@ -900,7 +921,7 @@ impl IoHandler> for Host where Messa } => { let handler_token = { let mut timer_counter = self.timer_counter.write().unwrap(); - let counter = timer_counter.deref_mut(); + let counter = &mut *timer_counter; let handler_token = *counter; *counter += 1; handler_token @@ -944,7 +965,7 @@ impl IoHandler> for Host where Messa } } DISCOVERY => self.discovery.lock().unwrap().as_ref().unwrap().register_socket(event_loop).expect("Error registering discovery socket"), - TCP_ACCEPT => event_loop.register(self.tcp_listener.lock().unwrap().deref(), Token(TCP_ACCEPT), EventSet::all(), PollOpt::edge()).expect("Error registering stream"), + TCP_ACCEPT => event_loop.register(&*self.tcp_listener.lock().unwrap(), Token(TCP_ACCEPT), EventSet::all(), PollOpt::edge()).expect("Error registering stream"), _ => warn!("Unexpected stream registration") } } @@ -972,7 +993,7 @@ impl IoHandler> for Host where Messa } } DISCOVERY => self.discovery.lock().unwrap().as_ref().unwrap().update_registration(event_loop).expect("Error reregistering discovery socket"), - TCP_ACCEPT => event_loop.reregister(self.tcp_listener.lock().unwrap().deref(), Token(TCP_ACCEPT), EventSet::all(), PollOpt::edge()).expect("Error reregistering stream"), + TCP_ACCEPT => event_loop.reregister(&*self.tcp_listener.lock().unwrap(), Token(TCP_ACCEPT), EventSet::all(), PollOpt::edge()).expect("Error reregistering stream"), _ => warn!("Unexpected stream update") } }