:Merge branch 'master' into windows

Dockerfile

@@ -19,6 +19,7 @@ ENV PROXY=
 ENV DNS=virtual
 ENV MODE=auto
 ENV BYPASS_IP=
+ENV VERBOSITY=info
 
 RUN apt update && apt install -y iproute2 curl && apt clean all
 

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) B. Blechschmidt and contributors
+Copyright (c) @ssrlive, B. Blechschmidt and contributors
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -119,16 +119,27 @@ Next, start a container from the tun2proxy image:
 
 ```bash
 docker run -d \
-	-e PROXY=PROXY_TYPE://PROXY_IP:PROXY_PORT \
+	-e PROXY=proto://[username[:password]@]host:port \
 	-v /dev/net/tun:/dev/net/tun \
-	--sysctl net.ipv6.conf.all.disable_ipv6=0 \
 	--sysctl net.ipv6.conf.default.disable_ipv6=0 \
 	--cap-add NET_ADMIN \
 	--name tun2proxy \
 	tun2proxy
 ```
 
-You can then provide the running container's network to another worker container by sharing the network namespace:
+container env list
+
+| container env | Default | program option          | mean                                                         |
+| ------------- | ------- | ----------------------- | ------------------------------------------------------------ |
+| TUN           | tun0    | -t, --tun <name>        | Name of the tun interface [default: tun0]                    |
+| PROXY         | None    | -p, --proxy <URL>       | Proxy URL in the form proto://[username[:password]@]host:port |
+| DNS           | virtual | -d, --dns <strategy>    | DNS handling strategy [default: virtual] [possible values: virtual, over-tcp, direct] |
+| MODE          | auto    | -s, --setup <method>    | Routing and system setup [possible values: auto]             |
+| BYPASS_IP     | None    | -b, --bypass <IP>       | Public proxy IP used in routing setup which should bypassing the tunnel |
+| VERBOSITY     | info    | -v, --verbosity <level> | Verbosity level [default: info] [possible values: off, error, warn, info, debug, trace] |
+|               |         |                         |                                                              |
+
+You can then provide the running container's network to another worker container by sharing the network namespace (like kubernetes sidecar):
 
 ```bash
 docker run -it \

docker/entrypoint.sh

@@ -2,28 +2,34 @@
 
 
 run() {
-  if [ -n "$BYPASS_IP" ]; then
-    BYPASS_IP="--bypass $BYPASS_IP"
-  fi
-
-  if [ -n "$DNS" ]; then
-    DNS="--dns $DNS"
-  fi
-
-  if [ -n "$MODE" ]; then
-    MODE="--setup $MODE"
+  if [ -n "$TUN" ]; then
+    TUN="--tun $TUN"
   fi
 
   if [ -n "$PROXY" ]; then
     PROXY="--proxy $PROXY"
   fi
 
-  if [ -n "$TUN" ]; then
-    TUN="--tun $TUN"
+  if [ -n "$DNS" ]; then
+    DNS="--dns $DNS"
   fi
 
-  exec tun2proxy $TUN $PROXY $DNS $MODE $BYPASS_IP
+  if [ -n "$BYPASS_IP" ]; then
+    BYPASS_IP="--bypass $BYPASS_IP"
+  fi
+
+  if [ -n "$VERBOSITY" ]; then
+    VERBOSITY="-v $VERBOSITY"
+  fi
+
+  if [ -n "$MODE" ]; then
+    MODE="--setup $MODE"
+  fi
+
+  echo "Bootstrap ready!! Exec Command: tun2proxy $TUN $PROXY $DNS $VERBOSITY $MODE $BYPASS_IP $@"
+
+  exec tun2proxy $TUN $PROXY $DNS $VERBOSITY $MODE $BYPASS_IP $@
 }
 
 
-run || echo "Runing ERROR!!"
+run $@ || echo "Runing ERROR!!"

src/http.rs

@@ -366,15 +366,15 @@ impl ProxyHandler for HttpConnection {
         self.state == HttpState::Established
     }
 
-    fn have_data(&mut self, dir: Direction) -> bool {
+    fn data_len(&self, dir: Direction) -> usize {
         match dir {
             Direction::Incoming(incoming) => match incoming {
-                IncomingDirection::FromServer => !self.server_inbuf.is_empty(),
-                IncomingDirection::FromClient => !self.client_inbuf.is_empty() || !self.data_buf.is_empty(),
+                IncomingDirection::FromServer => self.server_inbuf.len(),
+                IncomingDirection::FromClient => self.client_inbuf.len().max(self.data_buf.len()),
             },
             Direction::Outgoing(outgoing) => match outgoing {
-                OutgoingDirection::ToServer => !self.server_outbuf.is_empty(),
-                OutgoingDirection::ToClient => !self.client_outbuf.is_empty(),
+                OutgoingDirection::ToServer => self.server_outbuf.len(),
+                OutgoingDirection::ToClient => self.client_outbuf.len(),
             },
         }
     }

src/socks.rs

@@ -314,15 +314,15 @@ impl ProxyHandler for SocksProxyImpl {
         self.state == SocksState::Established
     }
 
-    fn have_data(&mut self, dir: Direction) -> bool {
+    fn data_len(&self, dir: Direction) -> usize {
         match dir {
             Direction::Incoming(incoming) => match incoming {
-                IncomingDirection::FromServer => !self.server_inbuf.is_empty(),
-                IncomingDirection::FromClient => !self.client_inbuf.is_empty() || !self.data_buf.is_empty(),
+                IncomingDirection::FromServer => self.server_inbuf.len(),
+                IncomingDirection::FromClient => self.client_inbuf.len().max(self.data_buf.len()),
             },
             Direction::Outgoing(outgoing) => match outgoing {
-                OutgoingDirection::ToServer => !self.server_outbuf.is_empty(),
-                OutgoingDirection::ToClient => !self.client_outbuf.is_empty(),
+                OutgoingDirection::ToServer => self.server_outbuf.len(),
+                OutgoingDirection::ToClient => self.client_outbuf.len(),
             },
         }
     }

src/tun2proxy.rs

@@ -173,6 +173,7 @@ const CLIENT_WRITE_CLOSED: u8 = 2;
 
 const UDP_ASSO_TIMEOUT: u64 = 10; // seconds
 const DNS_PORT: u16 = 53;
+const IP_PACKAGE_MAX_SIZE: usize = 0xFFFF;
 
 struct ConnectionState {
     smoltcp_handle: SocketHandle,
@@ -196,7 +197,7 @@ pub(crate) trait ProxyHandler {
     fn consume_data(&mut self, dir: OutgoingDirection, size: usize);
     fn peek_data(&mut self, dir: OutgoingDirection) -> OutgoingDataEvent;
     fn connection_established(&self) -> bool;
-    fn have_data(&mut self, dir: Direction) -> bool;
+    fn data_len(&self, dir: Direction) -> usize;
     fn reset_connection(&self) -> bool;
     fn get_udp_associate(&self) -> Option<SocketAddr>;
 }
@@ -406,13 +407,10 @@ impl<'a> TunToProxy<'a> {
             None => return Ok(()),
         };
         let mut closed_ends = 0;
+        let handler = state.proxy_handler.as_ref();
         if (state.close_state & SERVER_WRITE_CLOSED) == SERVER_WRITE_CLOSED
-            && !state
-                .proxy_handler
-                .have_data(Direction::Incoming(IncomingDirection::FromServer))
-            && !state
-                .proxy_handler
-                .have_data(Direction::Outgoing(OutgoingDirection::ToClient))
+            && handler.data_len(Direction::Incoming(IncomingDirection::FromServer)) == 0
+            && handler.data_len(Direction::Outgoing(OutgoingDirection::ToClient)) == 0
         {
             // Close tun interface
             let socket = self.sockets.get_mut::<tcp::Socket>(state.smoltcp_handle);
@@ -422,12 +420,8 @@ impl<'a> TunToProxy<'a> {
         }
 
         if (state.close_state & CLIENT_WRITE_CLOSED) == CLIENT_WRITE_CLOSED
-            && !state
-                .proxy_handler
-                .have_data(Direction::Incoming(IncomingDirection::FromClient))
-            && !state
-                .proxy_handler
-                .have_data(Direction::Outgoing(OutgoingDirection::ToServer))
+            && handler.data_len(Direction::Incoming(IncomingDirection::FromClient)) == 0
+            && handler.data_len(Direction::Outgoing(OutgoingDirection::ToServer)) == 0
         {
             // Close remote server
             if let Err(err) = state.mio_stream.shutdown(Shutdown::Write) {
@@ -454,6 +448,11 @@ impl<'a> TunToProxy<'a> {
             let socket = self.sockets.get_mut::<tcp::Socket>(state.smoltcp_handle);
             let mut error = Ok(());
             while socket.can_recv() && error.is_ok() {
+                let dir = Direction::Outgoing(OutgoingDirection::ToServer);
+                if state.proxy_handler.data_len(dir) >= IP_PACKAGE_MAX_SIZE {
+                    break;
+                }
+
                 socket.recv(|data| {
                     let event = IncomingDataEvent {
                         direction: IncomingDirection::FromClient,