调整stun逻辑

vnt/src/nat/stun.rs

@@ -38,7 +38,7 @@ pub fn stun_test_nat(stun_servers: Vec<String>) -> io::Result<(NatType, Vec<Ipv4
 }
 pub fn stun_test_nat0(stun_servers: Vec<String>) -> io::Result<(NatType, Vec<Ipv4Addr>, u16)> {
     let udp = UdpSocket::bind("0.0.0.0:0")?;
-    udp.set_read_timeout(Some(Duration::from_millis(300)))?;
+    udp.set_read_timeout(Some(Duration::from_millis(500)))?;
     let mut nat_type = NatType::Cone;
     let mut port_range = 0;
     let mut hash_set = HashSet::new();
@@ -76,7 +76,9 @@ fn test_nat(
     let mut port_range = 0;
     let mut hash_set = HashSet::new();
     let mut nat_type = NatType::Cone;
-    let (mapped_addr1, changed_addr1) = test_nat_(&udp, true, true)?;
+    // 随便搞个当id
+    let tid = stun_server.as_ptr() as u128;
+    let (mapped_addr1, changed_addr1) = test_nat_(&udp, true, true, tid)?;
     match mapped_addr1.ip() {
         IpAddr::V4(ip) => {
             hash_set.insert(ip);
@@ -84,7 +86,7 @@ fn test_nat(
         IpAddr::V6(_) => {}
     }
     if udp.connect(changed_addr1).is_ok() {
-        match test_nat_(&udp, false, false) {
+        match test_nat_(&udp, false, false, tid + 1) {
             Ok((mapped_addr2, _)) => {
                 match mapped_addr2.ip() {
                     IpAddr::V4(ip) => {
@@ -120,12 +122,13 @@ fn test_nat_(
     udp: &UdpSocket,
     change_ip: bool,
     change_port: bool,
+    tid: u128,
 ) -> io::Result<(SocketAddr, SocketAddr)> {
     for _ in 0..2 {
         let mut buf = [0u8; 28];
         let mut msg = stun_format::MsgBuilder::from(buf.as_mut_slice());
         msg.typ(stun_format::MsgType::BindingRequest).unwrap();
-        msg.tid(1).unwrap();
+        msg.tid(tid).unwrap();
         msg.add_attr(Attr::ChangeRequest {
             change_ip,
             change_port,