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Merge pull request #1347 from rphmeier/reserved-peers

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Reserved peers, reserved-only flag
This commit is contained in:
Marek Kotewicz 2016-06-20 14:03:47 +02:00 committed by GitHub
commit a6713467a7
5 changed files with 75 additions and 25 deletions
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6
parity/cli.rs
View File

@ -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<String>,
pub flag_reserved_peers: Option<String>,
pub flag_reserved_only: bool,
pub flag_cache_pref_size: usize,
pub flag_cache_max_size: usize,
pub flag_queue_max_size: usize,

22
parity/configuration.rs
View File

@ -153,6 +153,26 @@ impl Configuration {
}
}
pub fn init_reserved_nodes(&self) -> Vec<String> {
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<SocketAddr>, Option<SocketAddr>) {
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
}

6
parity/main.rs
View File

@ -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);

1
rpc/src/v1/impls/ethcore_set.rs
View File

@ -74,5 +74,4 @@ impl<M> EthcoreSet for EthcoreSetClient<M> where M: MinerService + 'static {
to_value(&true)
})
}
}

63
util/src/network/host.rs
View File

@ -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<String>,
/// Use provided node key instead of default
pub use_secret: Option<Secret>,
/// Number of connected peers to maintain
pub ideal_peers: u32,
/// List of reserved node addresses.
pub reserved_nodes: Vec<String>,
}
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<u8>) -> 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<Message> Host<Message> 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::<Message> {
info: RwLock::new(HostInfo {
keys: keys,
@ -389,21 +395,26 @@ impl<Message> Host<Message> 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<Message> Host<Message> 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<Message> Host<Message> 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");
@ -529,15 +540,18 @@ impl<Message> Host<Message> where Message: Send + Sync + Clone {
}
fn connect_peers(&self, io: &IoContext<NetworkIoMessage<Message>>) {
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 {
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();
// allow 16 slots for incoming connections
@ -546,9 +560,16 @@ impl<Message> Host<Message> 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<Message> Host<Message> 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<Message> IoHandler<NetworkIoMessage<Message>> for Host<Message> 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<Message> IoHandler<NetworkIoMessage<Message>> for Host<Message> 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<Message> IoHandler<NetworkIoMessage<Message>> for Host<Message> 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")
}
}