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/*
Copyright (c) 2017, 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 Street, Fifth Floor, Boston, MA 02110-1335 USA */
/************************** CLIENT *************************************/
#include <stdlib.h>
#include "common.h"
#include <mysql/client_plugin.h>
#include <errmsg.h>
#if !defined(__attribute__) && !defined(__GNUC__)
#define __attribute__(A)
#endif
static int do_auth(MYSQL_PLUGIN_VIO *vio, MYSQL *mysql)
{
unsigned char reply[CRYPTO_BYTES + NONCE_BYTES], *pkt;
int pkt_len;
/* read the nonce */
if ((pkt_len= vio->read_packet(vio, &pkt)) != NONCE_BYTES)
return CR_SERVER_HANDSHAKE_ERR;
/* sign the nonce */
crypto_sign(reply, pkt, NONCE_BYTES,
(unsigned char*)mysql->passwd, strlen(mysql->passwd));
/* send the signature */
if (vio->write_packet(vio, reply, CRYPTO_BYTES))
return CR_ERROR;
return CR_OK;
}
static int init_client(char *unused1 __attribute__((unused)),
size_t unused2 __attribute__((unused)),
int unused3 __attribute__((unused)),
va_list unused4 __attribute__((unused)))
{
return 0;
}
mysql_declare_client_plugin(AUTHENTICATION)
"client_ed25519",
"Sergei Golubchik",
"Elliptic curve ED25519 based authentication",
{0,1,0},
"GPL",
NULL,
init_client,
NULL,
NULL,
do_auth,
mysql_end_client_plugin;
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