func handleServerConn(sConn *ssh.ServerConn) { defer sConn.Close() for { // Accept reads from the connection, demultiplexes packets // to their corresponding channels and returns when a new // channel request is seen. Some goroutine must always be // calling Accept; otherwise no messages will be forwarded // to the channels. ch, err := sConn.Accept() if err == io.EOF { return } if err != nil { log.Println("handleServerConn Accept:", err) break } // Channels have a type, depending on the application level // protocol intended. In the case of a shell, the type is // "session" and ServerShell may be used to present a simple // terminal interface. if ch.ChannelType() != "session" { ch.Reject(ssh.UnknownChannelType, "unknown channel type") break } go handleChannel(ch) } }