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/*
Copyright (c) 2011, 2018 MariaDB Corporation
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 Street, Fifth Floor, Boston, MA 02111-1301 USA */
#include <mysql/plugin_auth.h>
struct param {
unsigned char buf[10240], *ptr, *cached;
int cached_len;
MYSQL_PLUGIN_VIO *vio;
};
static int roundtrip(struct param *param, const unsigned char *buf,
int buf_len, unsigned char **pkt)
{
if (param->cached && *param->cached && (buf[0] >> 1) == 2)
{
*pkt= param->cached;
param->cached= NULL;
return param->cached_len;
}
param->cached= NULL;
if (param->vio->write_packet(param->vio, buf, buf_len))
return -1;
return param->vio->read_packet(param->vio, pkt);
}
#include "auth_pam_base.c"
static int pam_auth(MYSQL_PLUGIN_VIO *vio, MYSQL_SERVER_AUTH_INFO *info)
{
struct param param;
param.vio = vio;
/* no user name yet ? read the client handshake packet with the user name */
if (info->user_name == 0)
{
if ((param.cached_len= vio->read_packet(vio, ¶m.cached)) < 0)
return CR_ERROR;
}
else
param.cached= NULL;
return pam_auth_base(¶m, info);
}
#include "auth_pam_common.c"
static int init(void *p __attribute__((unused)))
{
if (use_cleartext_plugin)
info.client_auth_plugin= "mysql_clear_password";
return 0;
}
maria_declare_plugin(pam)
{
MYSQL_AUTHENTICATION_PLUGIN,
&info,
"pam",
"Sergei Golubchik",
"PAM based authentication",
PLUGIN_LICENSE_GPL,
init,
NULL,
0x0100,
NULL,
vars,
"1.0",
MariaDB_PLUGIN_MATURITY_STABLE
}
maria_declare_plugin_end;
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