Hi guys
I'm with a doubt at dialog plugin
I created a user at mariadb server:

---SQL
INSTALL PLUGIN three_attempts SONAME 'dialog_examples.so';
CREATE USER test_dialog IDENTIFIED VIA three_attempts USING 'SECRET';
FLUSH PRIVILEGES;
---

now i'm trying to connect as user test_dialog:

---SHELL
$mysql --plugin-dir=/home/rspadim/mariadb/mariadb-10.0.14/plugin/auth_dialog --user=test_dialog --host=spd1.spadim.com.br --password

Enter password:  (i just hit enter)
[mariadb] Password, please:  (enter again)
[mariadb] Password, please:  (SECRET enter)
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 49243
Server version: 5.5.5-10.0.14-MariaDB-log Source distribution

Copyright (c) 2000, 2012, Oracle, Monty Program Ab and others.

Reading history-file /home/beto/.mysql_history
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> quit
Writing history-file /home/beto/.mysql_history
---

---SHELL
$ls /home/rspadim/mariadb/mariadb-10.0.14/plugin/auth_dialog
CMakeFiles  cmake_install.cmake  CMakeLists.txt  CTestTestfile.cmake  dialog.c  dialog.so  Makefile
---

---MYSQL.USER table
|| *Host* || *User* || *Password* || *Select_priv* || *Insert_priv* || *Update_priv* || *Delete_priv* || *Create_priv* || *Drop_priv* || *Reload_priv* || *Shutdown_priv* || *Process_priv* || *File_priv* || *Grant_priv* || *References_priv* || *Index_priv* || *Alter_priv* || *Show_db_priv* || *Super_priv* || *Create_tmp_table_priv* || *Lock_tables_priv* || *Execute_priv* || *Repl_slave_priv* || *Repl_client_priv* || *Create_view_priv* || *Show_view_priv* || *Create_routine_priv* || *Alter_routine_priv* || *Create_user_priv* || *Event_priv* || *Trigger_priv* || *Create_tablespace_priv* || *ssl_type* || *ssl_cipher* || *x509_issuer* || *x509_subject* || *max_questions* || *max_updates* || *max_connections* || *max_user_connections* || *plugin* || *auth_string* ||
|| % || test_dialog || >>>CHECK NO PASSWORD!<<< || N || N || N || N || N || N || N || N || N || N || N || N || N || N || N || N || N || N || N || N || N || N || N || N || N || N || N || N || N ||  ||  ||  ||  || 0 || 0 || 0 || 0 || three_attempts || SECRET ||

---

the doubts:
1) why it accept my login with password? i don't have a password at mysql.user schema
2) why i didn't received a dialog like in heidisql? 
3) there's a auth trace or auth verbose option at client side? or any other command to check if i loaded the dialog plugin?

--
Roberto Spadim