修复打洞端口为0的问题

vnt/src/channel/punch.rs

@@ -97,16 +97,17 @@ impl NatInfo {
         }
     }
     pub fn update_addr(&mut self, index: usize, ip: Ipv4Addr, port: u16) {
+        if port != 0 {
+            if let Some(public_port) = self.public_ports.get_mut(index) {
+                *public_port = port;
+            }
+        }
         if !ip.is_multicast()
             && !ip.is_broadcast()
             && !ip.is_unspecified()
             && !ip.is_loopback()
             && !ip.is_private()
-            && port != 0
         {
-            if let Some(public_port) = self.public_ports.get_mut(index) {
-                *public_port = port;
-            }
             if !self.public_ips.contains(&ip) {
                 self.public_ips.push(ip);
             }
@@ -226,9 +227,8 @@ impl Punch {
         if !self.context.route_table.need_punch(&id) {
             return Ok(());
         }
-        log::info!("nat_info={:?}", nat_info);
 
-        if self.is_tcp {
+        if self.is_tcp && nat_info.tcp_port != 0 {
             //向tcp发起连接
             if let Some(ipv6_addr) = nat_info.local_tcp_ipv6addr() {
                 if self.connect_tcp(buf, ipv6_addr) {
@@ -321,10 +321,11 @@ impl Punch {
                     let is_cone = self.context.is_cone();
                     let len = nat_info.public_ports.len();
                     for ip in &nat_info.public_ips {
-                        let addr = SocketAddr::V4(SocketAddrV4::new(
+                        let port = nat_info.public_ports[index % len];
-                            *ip,
+                        if port == 0 || ip.is_unspecified() {
-                            nat_info.public_ports[index % len],
+                            continue;
-                        ));
+                        }
+                        let addr = SocketAddr::V4(SocketAddrV4::new(*ip, port));
                         self.context.send_main_udp(index, buf, addr)?;
                         if !is_cone {
                             //只有一方是对称，则对称方要使用全部端口发送数据，符合上述计算的概率

vnt/src/core/conn.rs

@@ -102,6 +102,7 @@ impl Vnt {
         let tcp_port = tcp_listener.local_addr()?.port();
         //nat检测工具
         let nat_test = NatTest::new(
+            context.channel_num(),
             config.stun_server.clone(),
             local_ipv4,
             local_ipv6,

vnt/src/handle/maintain/re_nat_type.rs

@@ -27,19 +27,19 @@ fn retrieve_nat_type0(
 ) {
     thread::spawn(move || {
         if nat_test.can_update() {
-            let nat_info = nat_test.nat_info();
             let local_ipv4 = nat::local_ipv4();
             let local_ipv6 = nat::local_ipv6();
-            let nat_info = nat_test.re_test(
+            match nat_test.re_test(local_ipv4, local_ipv6) {
-                nat_info.public_ports,
+                Ok(nat_info) => {
-                local_ipv4,
+                    log::info!("当前nat信息:{:?}", nat_info);
-                local_ipv6,
+                    if let Err(e) = context.switch(nat_info.nat_type, &udp_socket_sender) {
-                nat_info.udp_ports,
+                        log::warn!("{:?}", e);
-                nat_info.tcp_port,
+                    }
-            );
+                }
-            if let Err(e) = context.switch(nat_info.nat_type, &udp_socket_sender) {
+                Err(e) => {
-                log::warn!("{:?}", e);
+                    log::warn!("nat re_test {:?}", e);
-            }
+                }
+            };
         }
     });
 }

vnt/src/nat/mod.rs

@@ -78,6 +78,7 @@ impl Into<NatType> for PunchNatType {
 
 impl NatTest {
     pub fn new(
+        channel_num: usize,
         mut stun_server: Vec<String>,
         local_ipv4: Option<Ipv4Addr>,
         ipv6: Option<Ipv6Addr>,
@@ -86,9 +87,11 @@ impl NatTest {
     ) -> NatTest {
         let server = stun_server[0].clone();
         stun_server.resize(3, server);
+        let mut ports = udp_ports.clone();
+        ports.resize(channel_num, 0);
         let nat_info = NatInfo::new(
             Vec::new(),
-            Vec::new(),
+            ports,
             0,
             local_ipv4,
             ipv6,
@@ -115,61 +118,23 @@ impl NatTest {
         self.info.lock().clone()
     }
     pub fn update_addr(&self, index: usize, ip: Ipv4Addr, port: u16) {
+        log::info!("update_addr={},{}:{}", index, ip, port);
         let mut guard = self.info.lock();
         guard.update_addr(index, ip, port)
     }
     pub fn re_test(
         &self,
-        public_ports: Vec<u16>,
         local_ipv4: Option<Ipv4Addr>,
         ipv6: Option<Ipv6Addr>,
-        udp_ports: Vec<u16>,
+    ) -> io::Result<NatInfo> {
-        tcp_port: u16,
+        let (nat_type, public_ips, port_range) = stun::stun_test_nat(self.stun_server.clone())?;
-    ) -> NatInfo {
+        let mut guard = self.info.lock();
-        let info = NatTest::re_test_(
+        guard.nat_type = nat_type;
-            &self.stun_server,
+        guard.public_ips = public_ips;
-            public_ports,
+        guard.public_port_range = port_range;
-            local_ipv4,
+        guard.local_ipv4 = local_ipv4;
-            ipv6,
+        guard.ipv6 = ipv6;
-            udp_ports,
+
-            tcp_port,
+        Ok(guard.clone())
-        );
-        log::info!("探测nat类型={:?}", info);
-        *self.info.lock() = info.clone();
-        info
-    }
-    fn re_test_(
-        stun_server: &Vec<String>,
-        public_ports: Vec<u16>,
-        local_ipv4: Option<Ipv4Addr>,
-        ipv6: Option<Ipv6Addr>,
-        udp_ports: Vec<u16>,
-        tcp_port: u16,
-    ) -> NatInfo {
-        return match stun::stun_test_nat(stun_server.clone()) {
-            Ok((nat_type, public_ips, port_range)) => NatInfo::new(
-                public_ips,
-                public_ports,
-                port_range,
-                local_ipv4,
-                ipv6,
-                udp_ports,
-                tcp_port,
-                nat_type,
-            ),
-            Err(e) => {
-                log::warn!("{:?}", e);
-                NatInfo::new(
-                    Vec::new(),
-                    public_ports,
-                    0,
-                    local_ipv4,
-                    ipv6,
-                    udp_ports,
-                    tcp_port,
-                    NatType::Cone,
-                )
-            }
-        };
     }
 }