^^&&^^

Edit File: plugin_password_validation.h

#ifndef MYSQL_PLUGIN_PASSWORD_VALIDATION_INCLUDED
/* Copyright (C) 2014 Sergei Golubchik and MariaDB

This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; version 2 of the License.

This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335  USA */

/**
  @file

Password Validation Plugin API.

This file defines the API for server password validation plugins.
*/

#define MYSQL_PLUGIN_PASSWORD_VALIDATION_INCLUDED

#include <mysql/plugin.h>

#ifdef __cplusplus
extern "C" {
#endif

#define MariaDB_PASSWORD_VALIDATION_INTERFACE_VERSION 0x0100

/**
  Password validation plugin descriptor
*/
struct st_mariadb_password_validation
{
  int interface_version;                        /**< version plugin uses */
  /**
    Function provided by the plugin which should perform password validation
    and return 0 if the password has passed the validation.
  */
  int (*validate_password)(MYSQL_CONST_LEX_STRING *username,
                           MYSQL_CONST_LEX_STRING *password);
};

#ifdef __cplusplus
}
#endif

#endif