// newConn creates a new *clientConn from a net.Conn.
// It allocates a connection ID and random salt data for authentication.
func (s *Server) newConn(conn net.Conn) *clientConn {
cc := &clientConn{
conn: conn,
pkt: newPacketIO(conn),
server: s,
connectionID: atomic.AddUint32(&baseConnID, 1),
collation: mysql.DefaultCollationID,
alloc: arena.NewAllocator(32 * 1024),
}
log.Infof("[%d] new connection %s", cc.connectionID, conn.RemoteAddr().String())
cc.salt = randomBuf(20)
return cc
}
func (s *Server) newConn(conn net.Conn) (cc *clientConn, err error) {
log.Info("newConn", conn.RemoteAddr().String())
cc = &clientConn{
conn: conn,
pkg: newPacketIO(conn),
server: s,
connectionID: atomic.AddUint32(&baseConnID, 1),
collation: mysql.DefaultCollationID,
charset: mysql.DefaultCharset,
alloc: arena.NewAllocator(32 * 1024),
}
cc.salt = randomBuf(20)
return
}
func (r *Replayer) replayRecord() error {
record, err := r.readRecord()
if err != nil {
return errors.Trace(err)
}
switch record.Type {
case ConnCreateRecord:
if _, ok := r.clients[record.ConnectionID]; ok {
return errors.Errorf("duplicated connection id for %s", record)
}
conn := new(ClientConn)
err = conn.Unmarshal(record.Data)
if err != nil {
return errors.Trace(err)
}
conn.pkg = &dummyPacket{}
conn.recWriter = r.recWriter
conn.alloc = arena.NewAllocator(32 * 1024)
conn.ctx, err = r.driver.OpenCtx(conn.Capability, conn.Collation, conn.DBName)
if err != nil {
return errors.Trace(err)
}
r.clients[conn.ConnectionID] = conn
case ConnDeleteRecord:
conn, ok := r.clients[record.ConnectionID]
if !ok {
return errors.Errorf("missing connection for %s", record)
}
delete(r.clients, record.ConnectionID)
conn.Close()
case ConnRequestRecord:
conn, ok := r.clients[record.ConnectionID]
if !ok {
return errors.Errorf("missing connection for %s", record)
}
conn.HandleRequest(record.Data)
case ConnResponseRecord:
_, ok := r.clients[record.ConnectionID]
if !ok {
return errors.Errorf("missing connection for %s", record)
}
default:
return errors.Errorf("invalid record %s", record)
}
return r.err
}
func (s *Server) newConn(conn net.Conn) (cc *clientConn, err error) {
log.Info("newConn", conn.RemoteAddr().String())
cc = &clientConn{
conn: conn,
pkg: newPacketIO(conn),
server: s,
connectionID: atomic.AddUint32(&baseConnID, 1),
collation: mysql.DefaultCollationID,
charset: mysql.DefaultCharset,
alloc: arena.NewAllocator(32 * 1024),
}
cc.salt = make([]byte, 20)
io.ReadFull(rand.Reader, cc.salt)
for i, b := range cc.salt {
if b == 0 {
cc.salt[i] = '0'
}
}
return
}