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-rw-r--r--src/net/netapp.rs45
-rw-r--r--src/net/peering.rs54
-rw-r--r--src/net/test.rs2
3 files changed, 67 insertions, 34 deletions
diff --git a/src/net/netapp.rs b/src/net/netapp.rs
index b1ad9db8..faa51a99 100644
--- a/src/net/netapp.rs
+++ b/src/net/netapp.rs
@@ -13,7 +13,7 @@ use sodiumoxide::crypto::sign::ed25519;
use futures::stream::futures_unordered::FuturesUnordered;
use futures::stream::StreamExt;
-use tokio::net::{TcpListener, TcpStream};
+use tokio::net::{TcpListener, TcpSocket, TcpStream};
use tokio::select;
use tokio::sync::{mpsc, watch};
@@ -38,6 +38,11 @@ pub(crate) type VersionTag = [u8; 16];
/// Value of the Netapp version used in the version tag
pub(crate) const NETAPP_VERSION_TAG: u64 = 0x6e65746170700005; // netapp 0x0005
+/// HelloMessage is sent by the client on a Netapp connection to indicate
+/// that they are also a server and ready to recieve incoming connections
+/// at the specified address and port. If the client doesn't know their
+/// public address, they don't need to specify it and we look at the
+/// remote address of the socket is used instead.
#[derive(Serialize, Deserialize, Debug)]
pub(crate) struct HelloMessage {
pub server_addr: Option<IpAddr>,
@@ -56,10 +61,8 @@ type OnDisconnectHandler = Box<dyn Fn(NodeID, bool) + Send + Sync>;
/// NetApp can be used in a stand-alone fashion or together with a peering strategy.
/// If using it alone, you will want to set `on_connect` and `on_disconnect` events
/// in order to manage information about the current peer list.
-///
-/// It is generally not necessary to use NetApp stand-alone, as the provided full mesh
-/// and RPS peering strategies take care of the most common use cases.
pub struct NetApp {
+ bind_outgoing_to: Option<IpAddr>,
listen_params: ArcSwapOption<ListenParams>,
/// Version tag, 8 bytes for netapp version, 8 bytes for app version
@@ -83,7 +86,7 @@ pub struct NetApp {
struct ListenParams {
listen_addr: SocketAddr,
- public_addr: Option<IpAddr>,
+ public_addr: Option<SocketAddr>,
}
impl NetApp {
@@ -92,13 +95,19 @@ impl NetApp {
/// using `.listen()`
///
/// Our Peer ID is the public key associated to the secret key given here.
- pub fn new(app_version_tag: u64, netid: auth::Key, privkey: ed25519::SecretKey) -> Arc<Self> {
+ pub fn new(
+ app_version_tag: u64,
+ netid: auth::Key,
+ privkey: ed25519::SecretKey,
+ bind_outgoing_to: Option<IpAddr>,
+ ) -> Arc<Self> {
let mut version_tag = [0u8; 16];
version_tag[0..8].copy_from_slice(&u64::to_be_bytes(NETAPP_VERSION_TAG)[..]);
version_tag[8..16].copy_from_slice(&u64::to_be_bytes(app_version_tag)[..]);
let id = privkey.public_key();
let netapp = Arc::new(Self {
+ bind_outgoing_to,
listen_params: ArcSwapOption::new(None),
version_tag,
netid,
@@ -180,7 +189,7 @@ impl NetApp {
pub async fn listen(
self: Arc<Self>,
listen_addr: SocketAddr,
- public_addr: Option<IpAddr>,
+ public_addr: Option<SocketAddr>,
mut must_exit: watch::Receiver<bool>,
) {
let listen_params = ListenParams {
@@ -298,9 +307,20 @@ impl NetApp {
return Ok(());
}
- let socket = TcpStream::connect(ip).await?;
+ let stream = match self.bind_outgoing_to {
+ Some(addr) => {
+ let socket = if addr.is_ipv4() {
+ TcpSocket::new_v4()?
+ } else {
+ TcpSocket::new_v6()?
+ };
+ socket.bind(SocketAddr::new(addr, 0))?;
+ socket.connect(ip).await?
+ }
+ None => TcpStream::connect(ip).await?,
+ };
info!("Connected to {}, negotiating handshake...", ip);
- ClientConn::init(self, socket, id).await?;
+ ClientConn::init(self, stream, id).await?;
Ok(())
}
@@ -396,8 +416,11 @@ impl NetApp {
}
if let Some(lp) = self.listen_params.load_full() {
- let server_addr = lp.public_addr;
- let server_port = lp.listen_addr.port();
+ let server_addr = lp.public_addr.map(|x| x.ip());
+ let server_port = lp
+ .public_addr
+ .map(|x| x.port())
+ .unwrap_or(lp.listen_addr.port());
let hello_endpoint = self.hello_endpoint.load_full().unwrap();
tokio::spawn(async move {
hello_endpoint
diff --git a/src/net/peering.rs b/src/net/peering.rs
index 32199cf8..61882a18 100644
--- a/src/net/peering.rs
+++ b/src/net/peering.rs
@@ -80,6 +80,23 @@ impl PeerInfoInternal {
failed_pings: 0,
}
}
+ fn add_addr(&mut self, addr: SocketAddr) -> bool {
+ if !self.all_addrs.contains(&addr) {
+ self.all_addrs.push(addr);
+ // If we are learning a new address for this node,
+ // we want to retry connecting
+ self.state = match self.state {
+ PeerConnState::Trying(_) => PeerConnState::Trying(0),
+ PeerConnState::Waiting(_, _) | PeerConnState::Abandonned => {
+ PeerConnState::Waiting(0, Instant::now())
+ }
+ x @ (PeerConnState::Ourself | PeerConnState::Connected) => x,
+ };
+ true
+ } else {
+ false
+ }
+ }
}
/// Information that the full mesh peering strategy can return about the peers it knows of
@@ -147,23 +164,22 @@ struct KnownHosts {
impl KnownHosts {
fn new() -> Self {
let list = HashMap::new();
- let hash = Self::calculate_hash(&list);
+ let hash = Self::calculate_hash(vec![]);
Self { list, hash }
}
fn update_hash(&mut self) {
- self.hash = Self::calculate_hash(&self.list);
+ self.hash = Self::calculate_hash(self.connected_peers_vec());
}
- fn map_into_vec(input: &HashMap<NodeID, PeerInfoInternal>) -> Vec<(NodeID, SocketAddr)> {
- let mut list = Vec::with_capacity(input.len());
- for (id, peer) in input.iter() {
- if peer.state == PeerConnState::Connected || peer.state == PeerConnState::Ourself {
+ fn connected_peers_vec(&self) -> Vec<(NodeID, SocketAddr)> {
+ let mut list = Vec::with_capacity(self.list.len());
+ for (id, peer) in self.list.iter() {
+ if peer.state.is_up() {
list.push((*id, peer.addr));
}
}
list
}
- fn calculate_hash(input: &HashMap<NodeID, PeerInfoInternal>) -> hash::Digest {
- let mut list = Self::map_into_vec(input);
+ fn calculate_hash(mut list: Vec<(NodeID, SocketAddr)>) -> hash::Digest {
list.sort();
let mut hash_state = hash::State::new();
for (id, addr) in list {
@@ -214,6 +230,7 @@ impl PeeringManager {
netapp.id,
PeerInfoInternal::new(addr, PeerConnState::Ourself),
);
+ known_hosts.update_hash();
}
// TODO for v0.10 / v1.0 : rename the endpoint (it will break compatibility)
@@ -234,13 +251,11 @@ impl PeeringManager {
let strat2 = strat.clone();
netapp.on_connected(move |id: NodeID, addr: SocketAddr, is_incoming: bool| {
- let strat2 = strat2.clone();
strat2.on_connected(id, addr, is_incoming);
});
let strat2 = strat.clone();
netapp.on_disconnected(move |id: NodeID, is_incoming: bool| {
- let strat2 = strat2.clone();
strat2.on_disconnected(id, is_incoming);
});
@@ -445,7 +460,7 @@ impl PeeringManager {
}
async fn exchange_peers(self: Arc<Self>, id: &NodeID) {
- let peer_list = KnownHosts::map_into_vec(&self.known_hosts.read().unwrap().list);
+ let peer_list = self.known_hosts.read().unwrap().connected_peers_vec();
let pex_message = PeerListMessage { list: peer_list };
match self
.peer_list_endpoint
@@ -465,8 +480,7 @@ impl PeeringManager {
let mut changed = false;
for (id, addr) in list.iter() {
if let Some(kh) = known_hosts.list.get_mut(id) {
- if !kh.all_addrs.contains(addr) {
- kh.all_addrs.push(*addr);
+ if kh.add_addr(*addr) {
changed = true;
}
} else {
@@ -534,13 +548,11 @@ impl PeeringManager {
}
}
- fn on_connected(self: Arc<Self>, id: NodeID, addr: SocketAddr, is_incoming: bool) {
+ fn on_connected(self: &Arc<Self>, id: NodeID, addr: SocketAddr, is_incoming: bool) {
let mut known_hosts = self.known_hosts.write().unwrap();
if is_incoming {
if let Some(host) = known_hosts.list.get_mut(&id) {
- if !host.all_addrs.contains(&addr) {
- host.all_addrs.push(addr);
- }
+ host.add_addr(addr);
} else {
known_hosts.list.insert(id, self.new_peer(&id, addr));
}
@@ -553,9 +565,7 @@ impl PeeringManager {
if let Some(host) = known_hosts.list.get_mut(&id) {
host.state = PeerConnState::Connected;
host.addr = addr;
- if !host.all_addrs.contains(&addr) {
- host.all_addrs.push(addr);
- }
+ host.add_addr(addr);
} else {
known_hosts
.list
@@ -566,7 +576,7 @@ impl PeeringManager {
self.update_public_peer_list(&known_hosts);
}
- fn on_disconnected(self: Arc<Self>, id: NodeID, is_incoming: bool) {
+ fn on_disconnected(self: &Arc<Self>, id: NodeID, is_incoming: bool) {
if !is_incoming {
info!("Connection to {} was closed", hex::encode(&id[..8]));
let mut known_hosts = self.known_hosts.write().unwrap();
@@ -608,7 +618,7 @@ impl EndpointHandler<PeerListMessage> for PeeringManager {
_from: NodeID,
) -> PeerListMessage {
self.handle_peer_list(&peer_list.list[..]);
- let peer_list = KnownHosts::map_into_vec(&self.known_hosts.read().unwrap().list);
+ let peer_list = self.known_hosts.read().unwrap().connected_peers_vec();
PeerListMessage { list: peer_list }
}
}
diff --git a/src/net/test.rs b/src/net/test.rs
index c6259752..5a3f236d 100644
--- a/src/net/test.rs
+++ b/src/net/test.rs
@@ -102,7 +102,7 @@ fn run_netapp(
Arc<NetApp>,
Arc<PeeringManager>,
) {
- let netapp = NetApp::new(0u64, netid, sk);
+ let netapp = NetApp::new(0u64, netid, sk, None);
let peering = PeeringManager::new(netapp.clone(), bootstrap_peers, None);
let peering2 = peering.clone();
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-20 03:40:36 +0000