2 * sql_mysql.c SQL Module
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 * Copyright 2000 The FreeRADIUS server project
21 * Copyright 2000 Mike Machado <mike@innercite.com>
22 * Copyright 2000 Alan DeKok <aland@ox.org>
34 #ifdef HAVE_MYSQL_MYSQL_H
35 #include <mysql/errmsg.h>
36 #include <mysql/mysql.h>
46 typedef struct rlm_sql_mysql_sock {
53 /*************************************************************************
55 * Function: sql_create_socket
57 * Purpose: Establish connection to the db
59 *************************************************************************/
60 static int sql_init_socket(SQLSOCK *sqlsocket, SQL_CONFIG *config)
62 rlm_sql_mysql_sock *mysql_sock;
64 if (!sqlsocket->conn) {
65 sqlsocket->conn = (rlm_sql_mysql_sock *)rad_malloc(sizeof(rlm_sql_mysql_sock));
66 if (!sqlsocket->conn) {
70 mysql_sock = sqlsocket->conn;
71 memset(mysql_sock, 0, sizeof(*mysql_sock));
73 radlog(L_INFO, "rlm_sql_mysql: Starting connect to MySQL server for #%d",
76 mysql_init(&(mysql_sock->conn));
77 if (!(mysql_sock->sock = mysql_real_connect(&(mysql_sock->conn),
82 atoi(config->sql_port),
84 CLIENT_FOUND_ROWS))) {
85 radlog(L_ERR, "rlm_sql_mysql: Couldn't connect socket to MySQL server %s@%s:%s", config->sql_login, config->sql_server, config->sql_db);
86 radlog(L_ERR, "rlm_sql_mysql: Mysql error '%s'", mysql_error(&mysql_sock->conn));
87 mysql_sock->sock = NULL;
96 /*************************************************************************
98 * Function: sql_destroy_socket
100 * Purpose: Free socket and any private connection data
102 *************************************************************************/
103 static int sql_destroy_socket(SQLSOCK *sqlsocket, SQL_CONFIG *config)
105 free(sqlsocket->conn);
106 sqlsocket->conn = NULL;
112 /*************************************************************************
114 * Function: sql_check_error
116 * Purpose: check the error to see if the server is down
118 *************************************************************************/
119 static int sql_check_error(int error)
122 case CR_SERVER_GONE_ERROR:
125 radlog(L_DBG, "rlm_sql_mysql: MYSQL check_error: %d, returning SQL_DOWN", error);
131 case CR_OUT_OF_MEMORY:
132 case CR_COMMANDS_OUT_OF_SYNC:
133 case CR_UNKNOWN_ERROR:
135 radlog(L_DBG, "rlm_sql_mysql: MYSQL check_error: %d received", error);
142 /*************************************************************************
144 * Function: sql_query
146 * Purpose: Issue a query to the database
148 *************************************************************************/
149 static int sql_query(SQLSOCK * sqlsocket, SQL_CONFIG *config, char *querystr)
151 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
153 if (config->sqltrace)
154 radlog(L_DBG,"rlm_sql_mysql: query: %s", querystr);
155 if (mysql_sock->sock == NULL) {
156 radlog(L_ERR, "rlm_sql_mysql: Socket not connected");
160 mysql_query(mysql_sock->sock, querystr);
161 return sql_check_error(mysql_errno(mysql_sock->sock));
165 /*************************************************************************
167 * Function: sql_store_result
169 * Purpose: database specific store_result function. Returns a result
172 *************************************************************************/
173 static int sql_store_result(SQLSOCK * sqlsocket, SQL_CONFIG *config)
175 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
177 if (mysql_sock->sock == NULL) {
178 radlog(L_ERR, "rlm_sql_mysql: Socket not connected");
181 if (!(mysql_sock->result = mysql_store_result(mysql_sock->sock))) {
182 radlog(L_ERR, "rlm_sql_mysql: MYSQL Error: Cannot get result");
183 radlog(L_ERR, "rlm_sql_mysql: MYSQL Error: %s",
184 mysql_error(mysql_sock->sock));
185 return sql_check_error(mysql_errno(mysql_sock->sock));
191 /*************************************************************************
193 * Function: sql_num_fields
195 * Purpose: database specific num_fields function. Returns number
196 * of columns from query
198 *************************************************************************/
199 static int sql_num_fields(SQLSOCK * sqlsocket, SQL_CONFIG *config)
202 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
204 #if MYSQL_VERSION_ID >= 32224
205 if (!(num = mysql_field_count(mysql_sock->sock))) {
207 if (!(num = mysql_num_fields(mysql_sock->sock))) {
209 radlog(L_ERR, "rlm_sql_mysql: MYSQL Error: No Fields");
210 radlog(L_ERR, "rlm_sql_mysql: MYSQL error: %s",
211 mysql_error(mysql_sock->sock));
217 /*************************************************************************
219 * Function: sql_select_query
221 * Purpose: Issue a select query to the database
223 *************************************************************************/
224 static int sql_select_query(SQLSOCK *sqlsocket, SQL_CONFIG *config,
229 ret = sql_query(sqlsocket, config, querystr);
232 ret = sql_store_result(sqlsocket, config);
237 /* Why? Per http://www.mysql.com/doc/n/o/node_591.html,
238 * this cannot return an error. Perhaps just to complain if no
241 sql_num_fields(sqlsocket, config);
247 /*************************************************************************
249 * Function: sql_num_rows
251 * Purpose: database specific num_rows. Returns number of rows in
254 *************************************************************************/
255 static int sql_num_rows(SQLSOCK * sqlsocket, SQL_CONFIG *config)
257 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
259 if (mysql_sock->result)
260 return mysql_num_rows(mysql_sock->result);
266 /*************************************************************************
268 * Function: sql_fetch_row
270 * Purpose: database specific fetch_row. Returns a SQL_ROW struct
271 * with all the data for the query in 'sqlsocket->row'. Returns
272 * 0 on success, -1 on failure, SQL_DOWN if database is down.
274 *************************************************************************/
275 static int sql_fetch_row(SQLSOCK * sqlsocket, SQL_CONFIG *config)
277 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
280 * Check pointer before de-referencing it.
282 if (!mysql_sock->result) {
286 sqlsocket->row = mysql_fetch_row(mysql_sock->result);
288 if (sqlsocket->row == NULL) {
289 return sql_check_error(mysql_errno(mysql_sock->sock));
295 /*************************************************************************
297 * Function: sql_free_result
299 * Purpose: database specific free_result. Frees memory allocated
302 *************************************************************************/
303 static int sql_free_result(SQLSOCK * sqlsocket, SQL_CONFIG *config)
305 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
307 if (mysql_sock->result) {
308 mysql_free_result(mysql_sock->result);
309 mysql_sock->result = NULL;
317 /*************************************************************************
319 * Function: sql_error
321 * Purpose: database specific error. Returns error associated with
324 *************************************************************************/
325 static char *sql_error(SQLSOCK * sqlsocket, SQL_CONFIG *config)
327 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
329 if (mysql_sock == NULL || mysql_sock->sock == NULL) {
330 return "rlm_sql_mysql: no connection to db";
332 return mysql_error(mysql_sock->sock);
336 /*************************************************************************
338 * Function: sql_close
340 * Purpose: database specific close. Closes an open database
343 *************************************************************************/
344 static int sql_close(SQLSOCK * sqlsocket, SQL_CONFIG *config)
346 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
348 if (mysql_sock && mysql_sock->sock){
349 mysql_close(mysql_sock->sock);
350 mysql_sock->sock = NULL;
357 /*************************************************************************
359 * Function: sql_finish_query
361 * Purpose: End the query, such as freeing memory
363 *************************************************************************/
364 static int sql_finish_query(SQLSOCK * sqlsocket, SQL_CONFIG *config)
371 /*************************************************************************
373 * Function: sql_finish_select_query
375 * Purpose: End the select query, such as freeing memory or result
377 *************************************************************************/
378 static int sql_finish_select_query(SQLSOCK * sqlsocket, SQL_CONFIG *config)
380 sql_free_result(sqlsocket, config);
386 /*************************************************************************
388 * Function: sql_affected_rows
390 * Purpose: End the select query, such as freeing memory or result
392 *************************************************************************/
393 static int sql_affected_rows(SQLSOCK * sqlsocket, SQL_CONFIG *config)
395 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
397 return mysql_affected_rows(mysql_sock->sock);
401 /* Exported to rlm_sql */
402 rlm_sql_module_t rlm_sql_mysql = {
416 sql_finish_select_query,