120 lines
3.9 KiB
C++
120 lines
3.9 KiB
C++
/* Copyright (c) 2010, 2017, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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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, version 2.0, 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 02110-1301 USA */
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#include <mysql/client_plugin.h>
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#include <mysql/plugin_auth.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "my_compiler.h"
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/**
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first byte of the question string is the question "type".
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It can be a "ordinary" or a "password" question.
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The last bit set marks a last question in the authentication exchange.
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*/
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#define ORDINARY_QUESTION "\2"
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#define LAST_QUESTION "\3"
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#define LAST_PASSWORD "\4"
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#define PASSWORD_QUESTION "\5"
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/********************* SERVER SIDE ****************************************/
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static int qa_auth_interface(MYSQL_PLUGIN_VIO *vio,
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MYSQL_SERVER_AUTH_INFO *info) {
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unsigned char *pkt;
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int pkt_len, err = CR_OK;
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/* send a password question */
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if (vio->write_packet(vio, (const unsigned char *)PASSWORD_QUESTION, 1))
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return CR_ERROR;
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/* read the answer */
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if ((pkt_len = vio->read_packet(vio, &pkt)) < 0) return CR_ERROR;
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info->password_used = PASSWORD_USED_YES;
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/* fail if the password is wrong */
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if (strcmp((const char *)pkt, info->auth_string)) return CR_ERROR;
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/* Test of default_auth */
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if (strcmp(info->user_name, "qa_test_11_user") == 0) {
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strcpy(info->authenticated_as, "qa_test_11_dest");
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} else
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err = CR_ERROR;
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return err;
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}
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static int generate_auth_string_hash(char *outbuf, unsigned int *buflen,
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const char *inbuf, unsigned int inbuflen) {
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/*
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if buffer specified by server is smaller than the buffer given
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by plugin then return error
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*/
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if (*buflen < inbuflen) return 1;
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strncpy(outbuf, inbuf, inbuflen);
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*buflen = strlen(inbuf);
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return 0;
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}
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static int validate_auth_string_hash(char *const inbuf MY_ATTRIBUTE((unused)),
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unsigned int buflen
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MY_ATTRIBUTE((unused))) {
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return 0;
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}
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static int set_salt(const char *password MY_ATTRIBUTE((unused)),
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unsigned int password_len MY_ATTRIBUTE((unused)),
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unsigned char *salt MY_ATTRIBUTE((unused)),
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unsigned char *salt_len) {
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*salt_len = 0;
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return 0;
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}
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static struct st_mysql_auth qa_auth_test_handler = {
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MYSQL_AUTHENTICATION_INTERFACE_VERSION,
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"qa_auth_interface", /* requires test_plugin client's plugin */
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qa_auth_interface,
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generate_auth_string_hash,
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validate_auth_string_hash,
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set_salt,
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AUTH_FLAG_PRIVILEGED_USER_FOR_PASSWORD_CHANGE,
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NULL};
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mysql_declare_plugin(test_plugin){
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MYSQL_AUTHENTICATION_PLUGIN,
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&qa_auth_test_handler,
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"qa_auth_server",
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"Horst Hunger",
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"plugin API test plugin",
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PLUGIN_LICENSE_GPL,
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NULL, /* Init */
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NULL, /* Check uninstall */
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NULL, /* Deinit */
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0x0101,
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NULL,
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NULL,
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NULL,
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0,
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} mysql_declare_plugin_end;
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