Merge pull request jonhoo#9 from datafuse-extras/fix-seq

Fix protocol seq

Author: BohuTANG

examples/serve_auth.rs

@@ -53,16 +53,11 @@ impl<W: io::Write> MysqlShim<W> for Backend {
     /// authenticate method for the specified plugin
     fn authenticate(
         &self,
-        auth_plugin: &str,
+        _auth_plugin: &str,
         username: &[u8],
-        salt: &[u8],
-        auth_data: &[u8],
+        _salt: &[u8],
+        _auth_data: &[u8],
     ) -> bool {
-        println!(
-            "auth_plugin, {:?},  user: {:?} ,  salt: {:?}, auth_data:{:?}",
-            auth_plugin, username, salt, auth_data
-        );
-
         username == "default".as_bytes()
     }
 
@@ -102,10 +97,9 @@ impl<W: io::Write> MysqlShim<W> for Backend {
 
 fn main() {
     let mut threads = Vec::new();
-    let listener = net::TcpListener::bind("127.0.0.1:3306").unwrap();
+    let listener = net::TcpListener::bind("0.0.0.0:3306").unwrap();
 
     while let Ok((s, _)) = listener.accept() {
-        println!("{:?}", "got one socket");
         threads.push(thread::spawn(move || {
             MysqlIntermediary::run_on_tcp(Backend, s).unwrap();
         }));

examples/serve_one.rs

@@ -41,7 +41,6 @@ fn main() {
     let listener = net::TcpListener::bind("127.0.0.1:3306").unwrap();
 
     while let Ok((s, _)) = listener.accept() {
-        println!("{:?}", "got one socket");
         threads.push(thread::spawn(move || {
             MysqlIntermediary::run_on_tcp(Backend, s).unwrap();
         }));

src/lib.rs

@@ -366,7 +366,7 @@ impl<B: MysqlShim<W>, R: Read, W: Write> MysqlIntermediary<B, R, W> {
         self.writer.flush()?;
 
         {
-            let (seq, handshake) = self.reader.next()?.ok_or_else(|| {
+            let (mut seq, handshake) = self.reader.next()?.ok_or_else(|| {
                 io::Error::new(
                     io::ErrorKind::ConnectionAborted,
                     "peer terminated connection",
@@ -409,6 +409,7 @@ impl<B: MysqlShim<W>, R: Read, W: Write> MysqlIntermediary<B, R, W> {
                 && auth_response.is_empty()
                 && handshake.auth_plugin != auth_plugin_expect.as_bytes()
             {
+                self.writer.set_seq(seq + 1);
                 self.writer.write_all(&[0xfe])?;
                 self.writer.write_all(auth_plugin_expect.as_bytes())?;
                 self.writer.write_all(&[0x00])?;
@@ -417,13 +418,14 @@ impl<B: MysqlShim<W>, R: Read, W: Write> MysqlIntermediary<B, R, W> {
 
                 self.writer.flush()?;
                 {
-                    let (_seq, auth_response_data) = self.reader.next()?.ok_or_else(|| {
+                    let (rseq, auth_response_data) = self.reader.next()?.ok_or_else(|| {
                         io::Error::new(
                             io::ErrorKind::ConnectionAborted,
                             "peer terminated connection",
                         )
                     })?;
 
+                    seq = rseq;
                     auth_response = auth_response_data.to_vec();
                 }
             }