mirror of
https://github.com/MariaDB/server.git
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94 lines
2.4 KiB
C
94 lines
2.4 KiB
C
/* Copyright (C) 2015 Vladislav Vaintroub, Georg Richter and Monty Program Ab
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; version 2 of the
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License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
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/**
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@file
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auth_pipe authentication plugin.
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Authentication is successful if the connection is done via a named pipe
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pipe peer name matches mysql user name
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*/
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#include <mysql/plugin_auth.h>
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#include <string.h>
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#include <lmcons.h>
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/**
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This authentication callback obtains user name using named pipe impersonation
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*/
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static int pipe_auth(MYSQL_PLUGIN_VIO *vio, MYSQL_SERVER_AUTH_INFO *info)
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{
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unsigned char *pkt;
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MYSQL_PLUGIN_VIO_INFO vio_info;
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char username[UNLEN + 1];
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DWORD username_length;
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int ret;
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/* no user name yet ? read the client handshake packet with the user name */
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if (info->user_name == 0)
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{
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if (vio->read_packet(vio, &pkt) < 0)
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return CR_ERROR;
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}
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info->password_used= PASSWORD_USED_NO_MENTION;
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vio->info(vio, &vio_info);
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if (vio_info.protocol != MYSQL_VIO_PIPE)
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return CR_ERROR;
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/* Impersonate the named pipe peer, and retrieve the user name */
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if (!ImpersonateNamedPipeClient(vio_info.handle))
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return CR_ERROR;
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username_length=UNLEN;
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ret= CR_ERROR;
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if (GetUserName(username, &username_length))
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{
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/* Always compare names case-insensitive on Windows.*/
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if (_stricmp(username, info->user_name) == 0)
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ret= CR_OK;
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}
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RevertToSelf();
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return ret;
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}
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static struct st_mysql_auth pipe_auth_handler=
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{
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MYSQL_AUTHENTICATION_INTERFACE_VERSION,
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0,
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pipe_auth
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};
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maria_declare_plugin(auth_named_pipe)
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{
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MYSQL_AUTHENTICATION_PLUGIN,
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&pipe_auth_handler,
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"named_pipe",
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"Vladislav Vaintroub, Georg Richter",
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"Windows named pipe based authentication",
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PLUGIN_LICENSE_GPL,
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NULL,
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NULL,
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0x0100,
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NULL,
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NULL,
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"1.0",
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MariaDB_PLUGIN_MATURITY_STABLE
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}
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maria_declare_plugin_end;
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