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#ifndef MYSQL_PLUGIN_AUTH_INCLUDED
/* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
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 02110-1301 USA */
/**
@file
Authentication Plugin API.
This file defines the API for server authentication plugins.
*/
#define MYSQL_PLUGIN_AUTH_INCLUDED
#include <mysql/plugin.h>
#define MYSQL_AUTHENTICATION_INTERFACE_VERSION 0x0100
#include <mysql/plugin_auth_common.h>
/* defines for MYSQL_SERVER_AUTH_INFO.password_used */
#define PASSWORD_USED_NO 0
#define PASSWORD_USED_YES 1
#define PASSWORD_USED_NO_MENTION 2
/**
Provides server plugin access to authentication information
*/
typedef struct st_mysql_server_auth_info
{
/**
User name as sent by the client and shown in USER().
NULL if the client packet with the user name was not received yet.
*/
char *user_name;
/**
Length of user_name
*/
unsigned int user_name_length;
/**
A corresponding column value from the mysql.user table for the
matching account name
*/
const char *auth_string;
/**
Length of auth_string
*/
unsigned long auth_string_length;
/**
Matching account name as found in the mysql.user table.
A plugin can override it with another name that will be
used by MySQL for authorization, and shown in CURRENT_USER()
*/
char authenticated_as[MYSQL_USERNAME_LENGTH+1];
/**
The unique user name that was used by the plugin to authenticate.
Plugins should put null-terminated UTF-8 here.
Available through the @@EXTERNAL_USER variable.
*/
char external_user[512];
/**
This only affects the "Authentication failed. Password used: %s"
error message. has the following values :
0 : %s will be NO.
1 : %s will be YES.
2 : there will be no %s.
Set it as appropriate or ignore at will.
*/
int password_used;
/**
Set to the name of the connected client host, if it can be resolved,
or to its IP address otherwise.
*/
const char *host_or_ip;
/**
Length of host_or_ip
*/
unsigned int host_or_ip_length;
} MYSQL_SERVER_AUTH_INFO;
/**
Server authentication plugin descriptor
*/
struct st_mysql_auth
{
int interface_version; /** version plugin uses */
/**
A plugin that a client must use for authentication with this server
plugin. Can be NULL to mean "any plugin".
*/
const char *client_auth_plugin;
/**
Function provided by the plugin which should perform authentication (using
the vio functions if necessary) and return 0 if successful. The plugin can
also fill the info.authenticated_as field if a different username should be
used for authorization.
*/
int (*authenticate_user)(MYSQL_PLUGIN_VIO *vio, MYSQL_SERVER_AUTH_INFO *info);
};
#endif
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