mirror of https://github.com/ospab/ostp.git
1011 lines
56 KiB
Rust
1011 lines
56 KiB
Rust
use std::time::{Duration, SystemTime};
|
|
use std::sync::atomic::Ordering;
|
|
use portable_atomic::{AtomicU64, AtomicU8};
|
|
use std::sync::Arc;
|
|
|
|
use anyhow::{Context, Result};
|
|
use bytes::Bytes;
|
|
use ostp_core::relay::RelayMessage;
|
|
use ostp_core::{NoiseRole, OstpEvent, PaddingStrategy, ProtocolAction, ProtocolConfig, ProtocolMachine, TrafficProfile};
|
|
use rand::Rng;
|
|
use tokio::net::UdpSocket;
|
|
use tokio::sync::{mpsc, watch};
|
|
use tokio::time::{interval, timeout, Instant};
|
|
|
|
use crate::app::{BridgeCommand, ConnectionStatus, UiEvent};
|
|
use crate::config::ClientConfig;
|
|
use crate::tunnel::{ProxyEvent, ProxyToClientMsg};
|
|
|
|
static SOCKET_PROTECTOR: std::sync::OnceLock<Box<dyn Fn(i32) -> bool + Send + Sync>> = std::sync::OnceLock::new();
|
|
|
|
pub fn set_socket_protector<F>(f: F)
|
|
where
|
|
F: Fn(i32) -> bool + Send + Sync + 'static,
|
|
{
|
|
let _ = SOCKET_PROTECTOR.set(Box::new(f));
|
|
}
|
|
|
|
pub fn protect_socket(fd: i32) -> bool {
|
|
if let Some(f) = SOCKET_PROTECTOR.get() {
|
|
return f(fd);
|
|
}
|
|
true
|
|
}
|
|
|
|
pub struct BridgeMetrics {
|
|
pub bytes_sent: AtomicU64,
|
|
pub bytes_recv: AtomicU64,
|
|
pub connection_state: AtomicU8,
|
|
pub rtt_ms: portable_atomic::AtomicU32,
|
|
}
|
|
|
|
async fn send_datagram(socket: &crate::transport::Transport, frame: &Bytes, _webrtc_masquerade: bool) -> std::io::Result<usize> {
|
|
socket.send(frame).await
|
|
}
|
|
|
|
struct SessionState {
|
|
socket: crate::transport::Transport,
|
|
machine: ProtocolMachine,
|
|
}
|
|
|
|
pub struct Bridge {
|
|
running: bool,
|
|
pub debug: bool,
|
|
profile: TrafficProfile,
|
|
server_addr: String,
|
|
local_bind_addr: String,
|
|
proxy_addr: String,
|
|
access_key: Bytes,
|
|
handshake_timeout_ms: u64,
|
|
io_timeout_ms: u64,
|
|
|
|
pub keepalive_interval_sec: u64,
|
|
pub mode: String,
|
|
pub mux_enabled: bool,
|
|
pub mux_sessions: usize,
|
|
|
|
pub transport_mode: String,
|
|
pub stealth_sni: String,
|
|
pub stealth_port: u16,
|
|
pub wss: bool,
|
|
pub mtu: usize,
|
|
pub reality_enabled: bool,
|
|
pub reality_pbk: String,
|
|
pub reality_sid: String,
|
|
|
|
metrics: Arc<BridgeMetrics>,
|
|
sample_sent: u64,
|
|
sample_recv: u64,
|
|
last_rtt_ms: f64,
|
|
last_sample_at: Instant,
|
|
last_valid_recv: Instant,
|
|
}
|
|
|
|
impl Bridge {
|
|
pub fn new(config: &ClientConfig, metrics: Arc<BridgeMetrics>) -> Result<Self> {
|
|
Ok(Self {
|
|
running: false,
|
|
debug: config.debug,
|
|
profile: TrafficProfile::JsonRpc,
|
|
server_addr: config.ostp.server_addr.clone(),
|
|
local_bind_addr: config.ostp.local_bind_addr.clone(),
|
|
proxy_addr: config.local_proxy.bind_addr.clone(),
|
|
access_key: Bytes::from(config.ostp.access_key.clone()),
|
|
handshake_timeout_ms: config.ostp.handshake_timeout_ms,
|
|
io_timeout_ms: config.ostp.io_timeout_ms,
|
|
|
|
keepalive_interval_sec: config.ostp.keepalive_interval_sec,
|
|
mode: config.mode.clone(),
|
|
mux_enabled: config.multiplex.enabled,
|
|
mux_sessions: config.multiplex.sessions.max(1),
|
|
|
|
transport_mode: config.transport.mode.clone(),
|
|
stealth_sni: config.transport.stealth_sni.clone(),
|
|
stealth_port: config.transport.stealth_port,
|
|
wss: config.transport.wss,
|
|
mtu: config.ostp.mtu,
|
|
reality_enabled: config.reality.enabled,
|
|
reality_pbk: config.reality.pbk.clone(),
|
|
reality_sid: config.reality.sid.clone(),
|
|
|
|
metrics,
|
|
sample_sent: 0,
|
|
sample_recv: 0,
|
|
last_rtt_ms: 0.0,
|
|
last_sample_at: Instant::now(),
|
|
last_valid_recv: Instant::now(),
|
|
})
|
|
}
|
|
|
|
pub async fn run(
|
|
mut self,
|
|
tx: mpsc::Sender<UiEvent>,
|
|
mut bridge_rx: mpsc::Receiver<BridgeCommand>,
|
|
mut shutdown: watch::Receiver<bool>,
|
|
mut proxy_rx: mpsc::Receiver<ProxyEvent>,
|
|
proxy_tx: mpsc::UnboundedSender<(u16, ProxyToClientMsg)>,
|
|
) -> Result<()> {
|
|
let mut metrics_tick = interval(Duration::from_millis(500));
|
|
let mut keepalive_tick = tokio::time::interval(Duration::from_secs(self.keepalive_interval_sec.max(1)));
|
|
let mut retransmit_tick = tokio::time::interval(Duration::from_millis(10));
|
|
let init_msg = if self.mode == "tun" {
|
|
"Bridge initialized (TUN mode)".to_string()
|
|
} else {
|
|
"Bridge initialized (proxy mode)".to_string()
|
|
};
|
|
tx.send(UiEvent::Log(init_msg)).await.ok();
|
|
|
|
let mut sessions_opt: Option<Vec<SessionState>> = None;
|
|
let mut udp_rx_opt: Option<mpsc::Receiver<(usize, Bytes)>> = None;
|
|
let mut _proxy_guard: Option<crate::sysproxy::SystemProxyGuard> = None;
|
|
let mut stream_map: std::collections::HashMap<u16, usize> = std::collections::HashMap::new();
|
|
|
|
loop {
|
|
tokio::select! {
|
|
biased;
|
|
_ = shutdown.changed() => {
|
|
if *shutdown.borrow() {
|
|
self.running = false;
|
|
self.metrics.connection_state.store(0, Ordering::Relaxed);
|
|
_proxy_guard = None;
|
|
break;
|
|
}
|
|
}
|
|
udp_msg = async {
|
|
match udp_rx_opt.as_mut() {
|
|
Some(rx) => rx.recv().await,
|
|
None => std::future::pending().await,
|
|
}
|
|
}, if self.running => {
|
|
match udp_msg {
|
|
Some((session_index, inbound)) => {
|
|
self.metrics.bytes_recv.fetch_add(inbound.len() as u64, Ordering::Relaxed);
|
|
self.last_valid_recv = Instant::now();
|
|
if let Some(sessions) = sessions_opt.as_mut() {
|
|
if session_index < sessions.len() {
|
|
let session = &mut sessions[session_index];
|
|
let initial_action = match session.machine.on_event(OstpEvent::Inbound(inbound)) {
|
|
Ok(a) => a,
|
|
Err(e) => {
|
|
let _ = tx.send(UiEvent::Log(format!("Protocol decrypt error: {e}"))).await;
|
|
tracing::warn!("Inbound protocol error (session {}): {}", session_index, e);
|
|
continue;
|
|
}
|
|
};
|
|
|
|
let mut actions_queue = std::collections::VecDeque::new();
|
|
actions_queue.push_back(initial_action);
|
|
|
|
while let Some(current_action) = actions_queue.pop_front() {
|
|
match current_action {
|
|
ProtocolAction::Multiple(nested) => {
|
|
for a in nested {
|
|
actions_queue.push_back(a);
|
|
}
|
|
}
|
|
ProtocolAction::DeliverApp(stream_id, dec_payload) => {
|
|
match RelayMessage::decode(&dec_payload) {
|
|
Ok(relay_msg) => {
|
|
match relay_msg {
|
|
RelayMessage::ConnectOk => {
|
|
let _ = tx.send(UiEvent::Log(format!("Relay CONNECT OK stream_id={stream_id}"))).await;
|
|
let _ = proxy_tx.send((stream_id, ProxyToClientMsg::ConnectOk));
|
|
}
|
|
RelayMessage::Data(data) => {
|
|
let _ = proxy_tx.send((stream_id, ProxyToClientMsg::Data(Bytes::from(data))));
|
|
}
|
|
RelayMessage::Close => {
|
|
let _ = proxy_tx.send((stream_id, ProxyToClientMsg::Close));
|
|
}
|
|
RelayMessage::Error(msg) => {
|
|
let _ = tx.send(UiEvent::Log(format!("Relay error for stream {stream_id}: {msg}"))).await;
|
|
let _ = proxy_tx.send((stream_id, ProxyToClientMsg::Error(msg)));
|
|
}
|
|
RelayMessage::Pong(ts) => {
|
|
let now = SystemTime::now().duration_since(std::time::UNIX_EPOCH).unwrap().as_millis() as u64;
|
|
self.last_rtt_ms = now.saturating_sub(ts) as f64;
|
|
self.metrics.rtt_ms.store(self.last_rtt_ms as u32, Ordering::Relaxed);
|
|
}
|
|
RelayMessage::UdpAssociate => {
|
|
// Should not be received by client, ignore
|
|
}
|
|
RelayMessage::UdpData(target, data) => {
|
|
let _ = proxy_tx.send((stream_id, ProxyToClientMsg::UdpData(target, Bytes::from(data))));
|
|
}
|
|
RelayMessage::KeepAlive | RelayMessage::Ping(_) | RelayMessage::Connect(_) => {}
|
|
}
|
|
}
|
|
Err(err) => {
|
|
let _ = tx.send(UiEvent::Log(format!("Relay decode error for stream {stream_id}: {err}"))).await;
|
|
let _ = proxy_tx.send((stream_id, ProxyToClientMsg::Error("relay decode failed".to_string())));
|
|
}
|
|
}
|
|
}
|
|
ProtocolAction::SendDatagram(frame) => {
|
|
let _ = send_datagram(&session.socket, &frame, self.transport_mode == "udp" ).await;
|
|
self.metrics.bytes_sent.fetch_add(frame.len() as u64, Ordering::Relaxed);
|
|
}
|
|
_ => {}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
None => {
|
|
let _ = tx.send(UiEvent::Log("UDP channel closed, resetting connection".to_string())).await;
|
|
self.running = false;
|
|
crate::sysproxy::disable_windows_proxy();
|
|
sessions_opt = None;
|
|
udp_rx_opt = None;
|
|
stream_map.clear();
|
|
self.reset_proxy_streams(&tx, &proxy_tx, "udp reader closed");
|
|
let _ = tx.send(UiEvent::TunnelStopped).await;
|
|
}
|
|
}
|
|
}
|
|
cmd = bridge_rx.recv() => {
|
|
match cmd {
|
|
Some(BridgeCommand::ToggleTunnel) => {
|
|
if self.running {
|
|
self.running = false;
|
|
self.metrics.connection_state.store(0, Ordering::Relaxed);
|
|
_proxy_guard = None;
|
|
sessions_opt = None;
|
|
udp_rx_opt = None;
|
|
stream_map.clear();
|
|
self.reset_proxy_streams(&tx, &proxy_tx, "manual stop");
|
|
tx.send(UiEvent::TunnelStopped).await.ok();
|
|
let stop_msg = if self.mode == "tun" { "TUN tunnel stopped" } else { "Bridge stopped" };
|
|
tx.send(UiEvent::Log(stop_msg.to_string())).await.ok();
|
|
} else {
|
|
tx.send(UiEvent::Log("Connecting to remote server...".to_string())).await.ok();
|
|
tx.send(UiEvent::Metrics { status: ConnectionStatus::Handshaking, rtt_ms: 0.0, throughput_bps: 0 }).await.ok();
|
|
self.metrics.connection_state.store(1, Ordering::Relaxed);
|
|
|
|
let session_count = if self.mux_enabled { self.mux_sessions.max(1) } else { 1 };
|
|
let (udp_tx, udp_rx) = mpsc::channel(100000); // Increased for high-speed traffic stability
|
|
let mut sessions = Vec::with_capacity(session_count);
|
|
let mut rtt_sum = 0.0;
|
|
let mut successful_sessions = 0;
|
|
|
|
for idx in 0..session_count {
|
|
let session_id: u32 = rand::thread_rng().gen();
|
|
match self.perform_handshake_with_id(&tx, session_id).await {
|
|
Ok((sock, mach, rtt)) => {
|
|
let session_index = sessions.len();
|
|
let socket_clone = sock.clone();
|
|
let udp_tx_clone = udp_tx.clone();
|
|
|
|
tokio::spawn(async move {
|
|
let mut buf = vec![0_u8; 65535];
|
|
loop {
|
|
match socket_clone.recv(&mut buf).await {
|
|
Ok(n) => {
|
|
let inbound = Bytes::copy_from_slice(&buf[..n]);
|
|
if udp_tx_clone.send((session_index, inbound)).await.is_err() {
|
|
break;
|
|
}
|
|
}
|
|
Err(e) => {
|
|
// Under Windows/Winsock, transient UDP socket errors (like WSAECONNRESET) are returned
|
|
// as Err(ConnectionReset). We MUST NOT break the loop on transient errors, otherwise the
|
|
// download path will be permanently killed while the upload path keeps running.
|
|
tracing::warn!("UDP socket recv error (session {}): {}", session_index, e);
|
|
tokio::time::sleep(std::time::Duration::from_millis(10)).await;
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
sessions.push(SessionState { socket: sock, machine: mach });
|
|
rtt_sum += rtt;
|
|
successful_sessions += 1;
|
|
}
|
|
Err(err) => {
|
|
tx.send(UiEvent::Log(format!("Multiplex session {}/{} handshake failed: {}. Continuing with remaining sessions...", idx + 1, session_count, err))).await.ok();
|
|
}
|
|
}
|
|
}
|
|
|
|
if sessions.is_empty() {
|
|
_proxy_guard = None;
|
|
tx.send(UiEvent::Log("All multiplexed handshake attempts failed. Connection aborted.".to_string())).await.ok();
|
|
tx.send(UiEvent::TunnelStopped).await.ok();
|
|
self.metrics.connection_state.store(0, Ordering::Relaxed);
|
|
continue;
|
|
}
|
|
|
|
udp_rx_opt = Some(udp_rx);
|
|
sessions_opt = Some(sessions);
|
|
self.last_rtt_ms = rtt_sum / successful_sessions as f64;
|
|
self.running = true;
|
|
self.last_sample_at = Instant::now();
|
|
self.last_valid_recv = Instant::now();
|
|
|
|
let sys_proxy_addr = self.proxy_addr.replace("0.0.0.0:", "127.0.0.1:");
|
|
_proxy_guard = Some(crate::sysproxy::SystemProxyGuard::enable(&sys_proxy_addr));
|
|
|
|
tx.send(UiEvent::Metrics {
|
|
status: ConnectionStatus::Established,
|
|
rtt_ms: self.last_rtt_ms,
|
|
throughput_bps: 0,
|
|
}).await.ok();
|
|
self.metrics.connection_state.store(2, Ordering::Relaxed);
|
|
let start_msg = if self.mode == "tun" { "TUN tunnel established" } else { "Connection established" };
|
|
tx.send(UiEvent::Log(start_msg.to_string())).await.ok();
|
|
|
|
// Send an immediate Ping so the UI updates without a 60s delay
|
|
for session in sessions_opt.as_mut().unwrap().iter_mut() {
|
|
let ts = SystemTime::now().duration_since(std::time::UNIX_EPOCH).unwrap().as_millis() as u64;
|
|
let ping_payload = Bytes::from(RelayMessage::Ping(ts).encode());
|
|
if let Ok(ProtocolAction::SendDatagram(frame)) = session.machine.on_event(OstpEvent::Outbound(0, ping_payload)) {
|
|
let _ = send_datagram(&session.socket, &frame, self.transport_mode == "udp").await;
|
|
self.metrics.bytes_sent.fetch_add(frame.len() as u64, Ordering::Relaxed);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
Some(BridgeCommand::NextProfile) => {
|
|
self.profile = next_profile(self.profile);
|
|
tx.send(UiEvent::ProfileChanged(self.profile)).await.ok();
|
|
tx.send(UiEvent::Log(format!("Obfuscation profile switched to {:?}", self.profile))).await.ok();
|
|
}
|
|
Some(BridgeCommand::NetworkChanged) => {
|
|
if self.running {
|
|
// Network changed (e.g. WiFi→LTE): IP address changed, existing UDP
|
|
// socket is dead. Trigger immediate reconnect without waiting for stall.
|
|
let _ = tx.send(UiEvent::Log("Network changed — starting immediate reconnect".to_string())).await;
|
|
self.metrics.connection_state.store(1, Ordering::Relaxed);
|
|
self.last_valid_recv = Instant::now() - Duration::from_secs(100); // force stall path
|
|
|
|
let session_count = if self.mux_enabled { self.mux_sessions.max(1) } else { 1 };
|
|
let (udp_tx, udp_rx) = mpsc::channel(100000);
|
|
let mut new_sessions = Vec::with_capacity(session_count);
|
|
let mut successful_sessions = 0;
|
|
let mut rtt_sum = 0.0;
|
|
|
|
for idx in 0..session_count {
|
|
let session_id: u32 = rand::thread_rng().gen();
|
|
match self.perform_handshake_with_id(&tx, session_id).await {
|
|
Ok((sock, mach, rtt)) => {
|
|
let session_index = new_sessions.len();
|
|
let socket_clone = sock.clone();
|
|
let udp_tx_clone = udp_tx.clone();
|
|
|
|
tokio::spawn(async move {
|
|
let mut buf = vec![0_u8; 65535];
|
|
loop {
|
|
match socket_clone.recv(&mut buf).await {
|
|
Ok(n) => {
|
|
let inbound = Bytes::copy_from_slice(&buf[..n]);
|
|
if udp_tx_clone.send((session_index, inbound)).await.is_err() { break; }
|
|
}
|
|
Err(e) => {
|
|
tracing::warn!("UDP recv error (network-change session {}): {}", session_index, e);
|
|
tokio::time::sleep(std::time::Duration::from_millis(10)).await;
|
|
}
|
|
}
|
|
}
|
|
});
|
|
new_sessions.push(SessionState { socket: sock, machine: mach });
|
|
rtt_sum += rtt;
|
|
successful_sessions += 1;
|
|
}
|
|
Err(err) => {
|
|
let _ = tx.send(UiEvent::Log(format!("NetworkChanged reconnect session {}/{} failed: {}", idx + 1, session_count, err))).await;
|
|
}
|
|
}
|
|
}
|
|
|
|
if !new_sessions.is_empty() {
|
|
sessions_opt = Some(new_sessions);
|
|
udp_rx_opt = Some(udp_rx);
|
|
self.last_rtt_ms = rtt_sum / successful_sessions as f64;
|
|
self.last_valid_recv = Instant::now();
|
|
stream_map.clear();
|
|
self.reset_proxy_streams(&tx, &proxy_tx, "network changed");
|
|
self.metrics.connection_state.store(2, Ordering::Relaxed);
|
|
let _ = tx.send(UiEvent::Log("NetworkChanged reconnect successful!".to_string())).await;
|
|
} else {
|
|
let _ = tx.send(UiEvent::Log("NetworkChanged reconnect failed — will retry on keepalive tick".to_string())).await;
|
|
}
|
|
}
|
|
}
|
|
Some(BridgeCommand::ReloadConfig) => {
|
|
match ClientConfig::reload_from_json_near_binary() {
|
|
Ok(cfg) => {
|
|
self.apply_runtime_config(&cfg);
|
|
tx.send(UiEvent::Log("Runtime config reloaded".to_string())).await.ok();
|
|
if self.running {
|
|
self.running = false;
|
|
self.metrics.connection_state.store(0, Ordering::Relaxed);
|
|
_proxy_guard = None;
|
|
sessions_opt = None;
|
|
stream_map.clear();
|
|
self.reset_proxy_streams(&tx, &proxy_tx, "config reload");
|
|
// User logic handles UI restart
|
|
let _ = tx.send(UiEvent::TunnelStopped).await;
|
|
}
|
|
}
|
|
Err(err) => {
|
|
let _ = tx.send(UiEvent::Log(format!("Config reload failed: {err}"))).await;
|
|
}
|
|
}
|
|
}
|
|
Some(BridgeCommand::Shutdown) | None => {
|
|
self.running = false;
|
|
_proxy_guard = None;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
_ = metrics_tick.tick() => {
|
|
if self.running {
|
|
self.emit_metrics(&tx).await;
|
|
}
|
|
}
|
|
_ = keepalive_tick.tick() => {
|
|
if self.running {
|
|
// 1. Connection Liveness Check & Silent Background Reconnect
|
|
if self.last_valid_recv.elapsed().as_secs() > 25 {
|
|
let elapsed = self.last_valid_recv.elapsed().as_secs();
|
|
if elapsed > 180 {
|
|
// Hard timeout after 3 minutes of total silence
|
|
let _ = tx.send(UiEvent::Log("Connection permanently lost (3-minute hard timeout). Stopping tunnel.".into())).await;
|
|
self.running = false;
|
|
_proxy_guard = None;
|
|
sessions_opt = None;
|
|
stream_map.clear();
|
|
self.reset_proxy_streams(&tx, &proxy_tx, "keepalive hard timeout");
|
|
let _ = tx.send(UiEvent::TunnelStopped).await;
|
|
self.metrics.connection_state.store(0, Ordering::Relaxed);
|
|
continue;
|
|
}
|
|
|
|
let _ = tx.send(UiEvent::Log(format!("Connection stall detected ({}s silence). Attempting background reconnect...", elapsed))).await;
|
|
self.metrics.connection_state.store(1, Ordering::Relaxed); // State: Connecting (Handshake)
|
|
|
|
let session_count = if self.mux_enabled { self.mux_sessions.max(1) } else { 1 };
|
|
let (udp_tx, udp_rx) = mpsc::channel(100000);
|
|
let mut new_sessions = Vec::with_capacity(session_count);
|
|
let mut successful_sessions = 0;
|
|
let mut rtt_sum = 0.0;
|
|
|
|
for idx in 0..session_count {
|
|
let session_id: u32 = rand::thread_rng().gen();
|
|
match self.perform_handshake_with_id(&tx, session_id).await {
|
|
Ok((sock, mach, rtt)) => {
|
|
let session_index = new_sessions.len();
|
|
let socket_clone = sock.clone();
|
|
let udp_tx_clone = udp_tx.clone();
|
|
|
|
tokio::spawn(async move {
|
|
let mut buf = vec![0_u8; 65535];
|
|
loop {
|
|
match socket_clone.recv(&mut buf).await {
|
|
Ok(n) => {
|
|
let inbound = Bytes::copy_from_slice(&buf[..n]);
|
|
if udp_tx_clone.send((session_index, inbound)).await.is_err() {
|
|
break;
|
|
}
|
|
}
|
|
Err(e) => {
|
|
tracing::warn!("UDP socket recv error (reconnect session {}): {}", session_index, e);
|
|
tokio::time::sleep(std::time::Duration::from_millis(10)).await;
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
new_sessions.push(SessionState { socket: sock, machine: mach });
|
|
rtt_sum += rtt;
|
|
successful_sessions += 1;
|
|
}
|
|
Err(err) => {
|
|
let _ = tx.send(UiEvent::Log(format!("Background reconnect session {}/{} failed: {}", idx + 1, session_count, err))).await;
|
|
}
|
|
}
|
|
}
|
|
|
|
if !new_sessions.is_empty() {
|
|
sessions_opt = Some(new_sessions);
|
|
udp_rx_opt = Some(udp_rx);
|
|
self.last_rtt_ms = rtt_sum / successful_sessions as f64;
|
|
self.last_valid_recv = Instant::now();
|
|
self.metrics.connection_state.store(2, Ordering::Relaxed); // State: Connected
|
|
let _ = tx.send(UiEvent::Log("Background reconnect successful! Connection restored.".into())).await;
|
|
|
|
// Send an immediate Ping so the UI updates without a 60s delay
|
|
for session in sessions_opt.as_mut().unwrap().iter_mut() {
|
|
let ts = SystemTime::now().duration_since(std::time::UNIX_EPOCH).unwrap().as_millis() as u64;
|
|
let ping_payload = Bytes::from(RelayMessage::Ping(ts).encode());
|
|
if let Ok(ProtocolAction::SendDatagram(frame)) = session.machine.on_event(OstpEvent::Outbound(0, ping_payload)) {
|
|
let _ = send_datagram(&session.socket, &frame, self.transport_mode == "udp").await;
|
|
self.metrics.bytes_sent.fetch_add(frame.len() as u64, Ordering::Relaxed);
|
|
}
|
|
}
|
|
|
|
// FIX: Clear existing proxy streams. Since we are on a NEW session_id,
|
|
// the server does not know about our existing streams. Closing them
|
|
// forces local apps/TUN to immediately recreate them and send proper
|
|
// Connect/UdpAssociate over the new session, avoiding a 5-minute blackhole.
|
|
stream_map.clear();
|
|
self.reset_proxy_streams(&tx, &proxy_tx, "background reconnect");
|
|
|
|
// FIX: Flush all stale proxy messages accumulated during the stall/reconnect
|
|
// This prevents a massive post-reconnect UDP burst that causes mobile carriers to drop all packets
|
|
let mut flushed = 0;
|
|
while let Ok(stale) = proxy_rx.try_recv() {
|
|
if let ProxyEvent::NewStream { stream_id, .. } = stale {
|
|
let _ = proxy_tx.send((stream_id, ProxyToClientMsg::Error("connection reset".into())));
|
|
}
|
|
flushed += 1;
|
|
}
|
|
if flushed > 0 {
|
|
let _ = tx.send(UiEvent::Log(format!("Flushed {} stale proxy messages to prevent UDP burst", flushed))).await;
|
|
}
|
|
} else {
|
|
let _ = tx.send(UiEvent::Log("Background reconnect failed. Will retry on next tick...".into())).await;
|
|
}
|
|
}
|
|
|
|
// 2. Active Keep-Alive / Heartbeat
|
|
if let Some(sessions) = sessions_opt.as_mut() {
|
|
for session in sessions.iter_mut() {
|
|
// Send Ping (Internal RTT Metric)
|
|
let ts = SystemTime::now().duration_since(std::time::UNIX_EPOCH).unwrap().as_millis() as u64;
|
|
let ping_payload = Bytes::from(RelayMessage::Ping(ts).encode());
|
|
if let Ok(ProtocolAction::SendDatagram(frame)) = session.machine.on_event(OstpEvent::Outbound(0, ping_payload)) {
|
|
// Must go through send_datagram() for TURN-mode wrapping;
|
|
// raw socket.send() bypasses the ChannelData header and breaks RTT in TURN.
|
|
let _ = send_datagram(&session.socket, &frame, self.transport_mode == "udp" ).await;
|
|
self.metrics.bytes_sent.fetch_add(frame.len() as u64, Ordering::Relaxed);
|
|
}
|
|
|
|
// Send Relay KeepAlive (Force NAT/Server Persistence)
|
|
let ka_payload = Bytes::from(RelayMessage::KeepAlive.encode());
|
|
if let Ok(ProtocolAction::SendDatagram(frame)) = session.machine.on_event(OstpEvent::Outbound(0, ka_payload)) {
|
|
let _ = send_datagram(&session.socket, &frame, self.transport_mode == "udp" ).await;
|
|
self.metrics.bytes_sent.fetch_add(frame.len() as u64, Ordering::Relaxed);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
_ = retransmit_tick.tick() => {
|
|
if self.running {
|
|
let mut fatal_err = None;
|
|
if let Some(sessions) = sessions_opt.as_mut() {
|
|
for session in sessions.iter_mut() {
|
|
match session.machine.on_event(OstpEvent::Tick) {
|
|
Ok(action) => {
|
|
let mut queue = vec![action];
|
|
while let Some(current_action) = queue.pop() {
|
|
match current_action {
|
|
ProtocolAction::Multiple(nested) => {
|
|
for a in nested {
|
|
queue.push(a);
|
|
}
|
|
}
|
|
ProtocolAction::SendDatagram(frame) => {
|
|
let _ = send_datagram(&session.socket, &frame, self.transport_mode == "udp" ).await;
|
|
self.metrics.bytes_sent.fetch_add(frame.len() as u64, Ordering::Relaxed);
|
|
}
|
|
_ => {}
|
|
}
|
|
}
|
|
}
|
|
Err(e) => {
|
|
fatal_err = Some(e);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if let Some(e) = fatal_err {
|
|
let _ = tx.send(UiEvent::Log(format!("Protocol tick fatal error: {e}"))).await;
|
|
self.running = false;
|
|
_proxy_guard = None;
|
|
sessions_opt = None;
|
|
udp_rx_opt = None;
|
|
stream_map.clear();
|
|
self.reset_proxy_streams(&tx, &proxy_tx, "protocol fatal error");
|
|
let _ = tx.send(UiEvent::TunnelStopped).await;
|
|
self.metrics.connection_state.store(0, Ordering::Relaxed);
|
|
}
|
|
}
|
|
}
|
|
proxy_ev = proxy_rx.recv(), if self.running && sessions_opt.as_ref().map(|s| {
|
|
// Backpressure: suspend proxy reads when ARQ window is saturated across ALL sessions
|
|
s.iter().any(|ses| ses.machine.in_flight_count() < ses.machine.cwnd_packets().clamp(16, 16384))
|
|
}).unwrap_or(true) => {
|
|
if let Some(ev) = proxy_ev {
|
|
if let Some(sessions) = sessions_opt.as_mut() {
|
|
if sessions.is_empty() {
|
|
if let ProxyEvent::NewStream { stream_id, .. } = ev {
|
|
let _ = proxy_tx.send((stream_id, ProxyToClientMsg::Error("tunnel stopped".into())));
|
|
}
|
|
continue;
|
|
}
|
|
let (stream_id, relay_msg, is_close) = match ev {
|
|
ProxyEvent::NewStream { stream_id, target } => {
|
|
let _ = tx.send(UiEvent::Log(format!("Proxy CONNECT stream_id={stream_id} target={target}"))).await;
|
|
(stream_id, RelayMessage::Connect(target), false)
|
|
}
|
|
ProxyEvent::UdpAssociate { stream_id } => {
|
|
let _ = tx.send(UiEvent::Log(format!("Proxy UDP ASSOCIATE stream_id={stream_id}"))).await;
|
|
(stream_id, RelayMessage::UdpAssociate, false)
|
|
}
|
|
ProxyEvent::UdpData { stream_id, target, payload } => {
|
|
(stream_id, RelayMessage::UdpData(target, payload.to_vec()), false)
|
|
}
|
|
ProxyEvent::Data { stream_id, payload } => (stream_id, RelayMessage::Data(payload.to_vec()), false),
|
|
ProxyEvent::Close { stream_id } => {
|
|
let _ = tx.send(UiEvent::Log(format!("Proxy CLOSE stream_id={stream_id}"))).await;
|
|
(stream_id, RelayMessage::Close, true)
|
|
}
|
|
};
|
|
let len = sessions.len();
|
|
let session_index = *stream_map.entry(stream_id).or_insert_with(|| {
|
|
// §8 FIX: Load balance multiplexed streams randomly across available connection sockets
|
|
rand::thread_rng().gen_range(0..len)
|
|
});
|
|
if is_close {
|
|
stream_map.remove(&stream_id);
|
|
}
|
|
let session = &mut sessions[session_index];
|
|
let out_payload = Bytes::from(relay_msg.encode());
|
|
match session.machine.on_event(OstpEvent::Outbound(stream_id, out_payload)) {
|
|
Ok(ProtocolAction::SendDatagram(frame)) => {
|
|
if send_datagram(&session.socket, &frame, self.transport_mode == "udp" ).await.is_ok() {
|
|
self.metrics.bytes_sent.fetch_add(frame.len() as u64, Ordering::Relaxed);
|
|
tracing::trace!(
|
|
"Outbound datagram sent stream_id={stream_id} bytes={}",
|
|
frame.len()
|
|
);
|
|
}
|
|
}
|
|
Ok(ProtocolAction::Multiple(list)) => {
|
|
let mut sent = 0usize;
|
|
for item in list {
|
|
if let ProtocolAction::SendDatagram(frame) = item {
|
|
if send_datagram(&session.socket, &frame, self.transport_mode == "udp" ).await.is_ok() {
|
|
self.metrics.bytes_sent.fetch_add(frame.len() as u64, Ordering::Relaxed);
|
|
sent += 1;
|
|
}
|
|
}
|
|
}
|
|
tracing::trace!(
|
|
"Outbound datagram batch stream_id={stream_id} sent={sent}"
|
|
);
|
|
}
|
|
Ok(ProtocolAction::Noop) => {
|
|
tracing::trace!(
|
|
"Outbound datagram noop stream_id={stream_id}"
|
|
);
|
|
}
|
|
Ok(_) => {
|
|
tracing::trace!(
|
|
"Outbound datagram unexpected action stream_id={stream_id}"
|
|
);
|
|
}
|
|
Err(e) => {
|
|
tracing::warn!("Protocol error packing outbound stream_id={}: {}", stream_id, e);
|
|
let _ = tx.send(UiEvent::Log(format!("Protocol error packing TCP: {e}"))).await;
|
|
}
|
|
}
|
|
} else {
|
|
// Drop it, not connected
|
|
if let ProxyEvent::NewStream { stream_id, .. } = ev {
|
|
let _ = proxy_tx.send((stream_id, ProxyToClientMsg::Error("tunnel stopped".into())));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
}
|
|
}
|
|
|
|
tx.send(UiEvent::Log("Bridge stopped".to_string())).await.ok();
|
|
Ok(())
|
|
}
|
|
|
|
fn reset_proxy_streams(
|
|
&self,
|
|
tx: &mpsc::Sender<UiEvent>,
|
|
proxy_tx: &mpsc::UnboundedSender<(u16, ProxyToClientMsg)>,
|
|
reason: &str,
|
|
) {
|
|
if proxy_tx
|
|
.send((0, ProxyToClientMsg::Close))
|
|
.is_err()
|
|
{
|
|
let tx_clone = tx.clone();
|
|
let reason_str = reason.to_string();
|
|
tokio::spawn(async move {
|
|
let _ = tx_clone
|
|
.send(UiEvent::Log(format!(
|
|
"Failed to reset local proxy streams ({reason_str})"
|
|
)))
|
|
.await;
|
|
});
|
|
}
|
|
}
|
|
|
|
async fn emit_metrics(&mut self, tx: &mpsc::Sender<UiEvent>) {
|
|
let now = Instant::now();
|
|
let elapsed = now.duration_since(self.last_sample_at).as_secs_f64().max(0.001);
|
|
self.last_sample_at = now;
|
|
|
|
let cur_sent = self.metrics.bytes_sent.load(Ordering::Relaxed);
|
|
let cur_recv = self.metrics.bytes_recv.load(Ordering::Relaxed);
|
|
|
|
let sent_delta = cur_sent.saturating_sub(self.sample_sent);
|
|
let recv_delta = cur_recv.saturating_sub(self.sample_recv);
|
|
|
|
self.sample_sent = cur_sent;
|
|
self.sample_recv = cur_recv;
|
|
|
|
let outgoing = (sent_delta as f64 / elapsed) as u64;
|
|
let incoming = (recv_delta as f64 / elapsed) as u64;
|
|
let throughput = incoming.saturating_add(outgoing);
|
|
|
|
tx.send(UiEvent::Traffic { incoming_bps: incoming, outgoing_bps: outgoing }).await.ok();
|
|
|
|
// Dynamically report connection status based on whether we have received server packets recently (last 10 seconds)
|
|
let is_healthy = self.last_valid_recv.elapsed() < Duration::from_secs(10);
|
|
let status = if is_healthy {
|
|
self.metrics.connection_state.store(2, Ordering::Relaxed);
|
|
ConnectionStatus::Established
|
|
} else {
|
|
self.metrics.connection_state.store(1, Ordering::Relaxed);
|
|
ConnectionStatus::Handshaking
|
|
};
|
|
|
|
tx.send(UiEvent::Metrics {
|
|
status,
|
|
rtt_ms: self.last_rtt_ms,
|
|
throughput_bps: throughput,
|
|
}).await.ok();
|
|
}
|
|
|
|
async fn perform_handshake_with_id(
|
|
&mut self,
|
|
tx: &mpsc::Sender<UiEvent>,
|
|
session_id: u32,
|
|
) -> Result<(crate::transport::Transport, ProtocolMachine, f64)> {
|
|
let timestamp = std::time::SystemTime::now()
|
|
.duration_since(std::time::UNIX_EPOCH)
|
|
.unwrap_or_default()
|
|
.as_secs();
|
|
|
|
let mut handshake_payload = Vec::with_capacity(8 + 4 + self.access_key.len());
|
|
handshake_payload.extend_from_slice(×tamp.to_be_bytes());
|
|
handshake_payload.extend_from_slice(&session_id.to_be_bytes());
|
|
handshake_payload.extend_from_slice(&self.access_key);
|
|
|
|
let secrets = ostp_core::crypto::derive_all_secrets(&self.access_key);
|
|
|
|
let mut machine = ProtocolMachine::new(ProtocolConfig {
|
|
role: NoiseRole::Initiator,
|
|
psk: secrets.psk,
|
|
session_id,
|
|
handshake_payload,
|
|
// max_padding computed dynamically below from mtu
|
|
padding_strategy: PaddingStrategy::Profile(self.profile),
|
|
obfuscation_key: secrets.obfuscation_key,
|
|
max_reorder: 16384, // Max gap between expected and received nonce
|
|
max_reorder_buffer: 8192, // Max buffered out-of-order frames
|
|
ack_delay_ms: 5,
|
|
rto_ms: 100,
|
|
max_retries: 8,
|
|
max_sent_history: 32768, // Reduced: gap recovery handles unrecoverable frames
|
|
handshake_pad_min: secrets.handshake_pad_min,
|
|
handshake_pad_max: secrets.handshake_pad_max,
|
|
mtu: self.mtu,
|
|
max_padding: self.mtu.saturating_sub(48).max(256), // leave room for UDP/IP/ostp headers
|
|
})?;
|
|
|
|
let resolved_addrs: Vec<std::net::SocketAddr> = match tokio::net::lookup_host(&self.server_addr).await {
|
|
Ok(addrs) => addrs.collect(),
|
|
Err(e) => return Err(anyhow::anyhow!("failed to resolve server address {}: {}", self.server_addr, e)),
|
|
};
|
|
let target_addr = resolved_addrs.first().ok_or_else(|| anyhow::anyhow!("no IP addresses resolved for {}", self.server_addr))?;
|
|
let target_ip = target_addr.ip();
|
|
let port = target_addr.port();
|
|
|
|
tx.send(UiEvent::Log(format!("Connecting to remote server: {}...", target_addr))).await.ok();
|
|
|
|
let socket = match self.try_connect_transport(target_ip, port).await {
|
|
Ok(sock) => sock,
|
|
Err(e) => {
|
|
if let std::net::IpAddr::V4(ipv4) = target_ip {
|
|
tx.send(UiEvent::Log(format!("Direct IPv4 connection failed: {}. Trying NAT64 fallback...", e))).await.ok();
|
|
let nat64_ipv6 = synthesize_nat64(ipv4);
|
|
match self.try_connect_transport(std::net::IpAddr::V6(nat64_ipv6), port).await {
|
|
Ok(sock) => sock,
|
|
Err(fallback_err) => {
|
|
return Err(anyhow::anyhow!("Direct IPv4 failed: {}. NAT64 fallback failed: {}", e, fallback_err));
|
|
}
|
|
}
|
|
} else {
|
|
return Err(e);
|
|
}
|
|
}
|
|
};
|
|
|
|
// Connection to remote is handled inside try_connect_transport
|
|
|
|
let start = Instant::now();
|
|
let action = machine.on_event(OstpEvent::Start)?;
|
|
let handshake_frame = match action {
|
|
ProtocolAction::SendDatagram(frame) => frame,
|
|
_ => anyhow::bail!("protocol did not emit handshake datagram"),
|
|
};
|
|
let mut buf = vec![0_u8; 4096];
|
|
let mut size = 0;
|
|
let mut success = false;
|
|
|
|
// For UoT: TCP is reliable so we don't retry on the same connection.
|
|
// Multiple retries would cause stale Noise responses to queue in the mpsc channel
|
|
// and break the Noise state machine (noise-read error).
|
|
// For UDP: retry up to 4x with 1200ms timeout to survive packet loss.
|
|
let is_uot = matches!(socket, crate::transport::Transport::Uot { .. });
|
|
let (attempt_limit, attempt_timeout_ms) = if is_uot { (1, 4000) } else { (4, 1200) };
|
|
|
|
for attempt in 0..attempt_limit {
|
|
if attempt > 0 {
|
|
tx.send(UiEvent::Log(format!("Handshake attempt {} lost. Retransmitting...", attempt))).await.ok();
|
|
}
|
|
send_datagram(&socket, &handshake_frame, self.transport_mode == "udp" ).await?;
|
|
self.metrics.bytes_sent.fetch_add(handshake_frame.len() as u64, Ordering::Relaxed);
|
|
|
|
match timeout(Duration::from_millis(attempt_timeout_ms), socket.recv(&mut buf)).await {
|
|
Ok(Ok(n)) => {
|
|
size = n;
|
|
success = true;
|
|
break;
|
|
}
|
|
_ => {} // retry on timeout or error
|
|
}
|
|
}
|
|
|
|
let (final_socket, size) = if success {
|
|
(socket, size)
|
|
} else {
|
|
if let std::net::IpAddr::V4(ipv4) = target_ip {
|
|
tx.send(UiEvent::Log("Direct IPv4 handshake timed out. Trying NAT64 fallback...".to_string())).await.ok();
|
|
let nat64_ipv6 = synthesize_nat64(ipv4);
|
|
match self.try_connect_transport(std::net::IpAddr::V6(nat64_ipv6), port).await {
|
|
Ok(fallback_socket) => {
|
|
let mut fallback_success = false;
|
|
for attempt in 0..4 {
|
|
if attempt > 0 {
|
|
tx.send(UiEvent::Log(format!("NAT64 handshake attempt {} lost. Retransmitting...", attempt))).await.ok();
|
|
}
|
|
send_datagram(&fallback_socket, &handshake_frame, self.transport_mode == "udp" ).await?;
|
|
match timeout(Duration::from_millis(1200), fallback_socket.recv(&mut buf)).await {
|
|
Ok(Ok(n)) => {
|
|
size = n;
|
|
fallback_success = true;
|
|
break;
|
|
}
|
|
_ => {}
|
|
}
|
|
}
|
|
if fallback_success {
|
|
tx.send(UiEvent::Log("NAT64 fallback handshake successful!".to_string())).await.ok();
|
|
(fallback_socket, size)
|
|
} else {
|
|
return Err(anyhow::anyhow!("NAT64 handshake failed after 3 attempts"));
|
|
}
|
|
}
|
|
Err(e) => return Err(anyhow::anyhow!("NAT64 fallback socket creation failed: {}", e)),
|
|
}
|
|
} else {
|
|
return Err(anyhow::anyhow!("Direct handshake failed after 3 attempts"));
|
|
}
|
|
};
|
|
let socket = final_socket;
|
|
self.metrics.bytes_recv.fetch_add(size as u64, Ordering::Relaxed);
|
|
tracing::info!("Handshake response received: {} bytes", size);
|
|
|
|
let inbound = Bytes::copy_from_slice(&buf[..size]);
|
|
machine.on_event(OstpEvent::Inbound(inbound))?;
|
|
let rtt_ms = start.elapsed().as_secs_f64() * 1000.0;
|
|
tracing::info!("Handshake complete: session={:#010x} rtt={:.1}ms", session_id, rtt_ms);
|
|
|
|
Ok((socket, machine, rtt_ms))
|
|
}
|
|
|
|
fn apply_runtime_config(&mut self, cfg: &ClientConfig) {
|
|
self.server_addr = cfg.ostp.server_addr.clone();
|
|
self.local_bind_addr = cfg.ostp.local_bind_addr.clone();
|
|
self.proxy_addr = cfg.local_proxy.bind_addr.clone();
|
|
self.access_key = Bytes::from(cfg.ostp.access_key.clone());
|
|
self.handshake_timeout_ms = cfg.ostp.handshake_timeout_ms;
|
|
self.io_timeout_ms = cfg.ostp.io_timeout_ms;
|
|
self.mode = cfg.mode.clone(); // Bug fix: mode was never updated on hot-reload
|
|
self.mux_enabled = cfg.multiplex.enabled;
|
|
self.mux_sessions = cfg.multiplex.sessions.max(1);
|
|
self.transport_mode = cfg.transport.mode.clone();
|
|
self.stealth_sni = cfg.transport.stealth_sni.clone();
|
|
self.stealth_port = cfg.transport.stealth_port;
|
|
self.reality_enabled = cfg.reality.enabled;
|
|
self.reality_pbk = cfg.reality.pbk.clone();
|
|
self.reality_sid = cfg.reality.sid.clone();
|
|
self.mtu = cfg.ostp.mtu; // Fix: mtu was never updated on hot-reload
|
|
self.keepalive_interval_sec = cfg.ostp.keepalive_interval_sec; // Fix: keepalive was never updated on hot-reload
|
|
}
|
|
|
|
async fn try_connect_transport(
|
|
&self,
|
|
target_ip: std::net::IpAddr,
|
|
port: u16,
|
|
) -> Result<crate::transport::Transport> {
|
|
let mode = self.transport_mode.to_lowercase();
|
|
if mode == "uot" || mode == "tcp" {
|
|
// For UoT, use the stealth_port if it's configured and differs from default 443;
|
|
// otherwise fall back to the actual server port so the user doesn't need two separate
|
|
// port fields for the same destination.
|
|
let uot_port = if self.stealth_port > 0 {
|
|
self.stealth_port
|
|
} else {
|
|
port
|
|
};
|
|
let (tx, rx) = crate::transport::xhttp::connect_xhttp(
|
|
target_ip, uot_port, &self.stealth_sni, &self.access_key, self.reality_enabled, self.wss, &self.reality_pbk, &self.reality_sid
|
|
).await?;
|
|
Ok(crate::transport::Transport::Uot { tx, rx })
|
|
} else {
|
|
let is_ipv6 = target_ip.is_ipv6();
|
|
let domain = if is_ipv6 { socket2::Domain::IPV6 } else { socket2::Domain::IPV4 };
|
|
let bind_addr = if is_ipv6 {
|
|
std::net::SocketAddr::new(std::net::IpAddr::V6(std::net::Ipv6Addr::UNSPECIFIED), 0)
|
|
} else {
|
|
std::net::SocketAddr::new(std::net::IpAddr::V4(std::net::Ipv4Addr::UNSPECIFIED), 0)
|
|
};
|
|
|
|
let sock = socket2::Socket::new(domain, socket2::Type::DGRAM, Some(socket2::Protocol::UDP))?;
|
|
#[cfg(unix)]
|
|
{
|
|
use std::os::unix::io::AsRawFd;
|
|
protect_socket(sock.as_raw_fd());
|
|
}
|
|
let _ = sock.set_recv_buffer_size(33554432); // 32MB
|
|
let _ = sock.set_send_buffer_size(33554432); // 32MB
|
|
let actual_recv = sock.recv_buffer_size().unwrap_or(0);
|
|
let actual_send = sock.send_buffer_size().unwrap_or(0);
|
|
tracing::info!("UDP socket buffers: recv={}KB send={}KB", actual_recv / 1024, actual_send / 1024);
|
|
sock.bind(&bind_addr.into())?;
|
|
sock.set_nonblocking(true)?;
|
|
let socket = UdpSocket::from_std(sock.into())?;
|
|
|
|
let connect_addr = std::net::SocketAddr::new(target_ip, port);
|
|
socket.connect(connect_addr).await.with_context(|| format!("failed to connect udp to {}", connect_addr))?;
|
|
Ok(crate::transport::Transport::Udp(Arc::new(socket)))
|
|
}
|
|
}
|
|
}
|
|
|
|
fn next_profile(current: TrafficProfile) -> TrafficProfile {
|
|
match current {
|
|
TrafficProfile::JsonRpc => TrafficProfile::HttpsBurst,
|
|
TrafficProfile::HttpsBurst => TrafficProfile::VideoStream,
|
|
TrafficProfile::VideoStream => TrafficProfile::JsonRpc,
|
|
}
|
|
}
|
|
|
|
fn synthesize_nat64(ip: std::net::Ipv4Addr) -> std::net::Ipv6Addr {
|
|
let octets = ip.octets();
|
|
std::net::Ipv6Addr::new(
|
|
0x0064, 0xff9b, 0, 0, 0, 0,
|
|
((octets[0] as u16) << 8) | octets[1] as u16,
|
|
((octets[2] as u16) << 8) | octets[3] as u16,
|
|
)
|
|
}
|
|
|
|
|