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>
30 #include <mysql/errmsg.h>
34 #include <mysql/mysql.h>
37 typedef struct rlm_sql_mysql_sock {
44 /*************************************************************************
46 * Function: sql_create_socket
48 * Purpose: Establish connection to the db
50 *************************************************************************/
51 static int sql_init_socket(SQLSOCK *sqlsocket, SQL_CONFIG *config)
53 rlm_sql_mysql_sock *mysql_sock;
55 sqlsocket->conn = (rlm_sql_mysql_sock *)rad_malloc(sizeof(rlm_sql_mysql_sock));
57 mysql_sock = sqlsocket->conn;
59 radlog(L_INFO, "rlm_sql_mysql: Starting connect to MySQL server for #%d",
62 mysql_init(&(mysql_sock->conn));
63 if (!(mysql_sock->sock = mysql_real_connect(&(mysql_sock->conn),
68 atoi(config->sql_port),
70 CLIENT_FOUND_ROWS))) {
71 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);
72 radlog(L_ERR, "rlm_sql_mysql: Mysql error '%s'", mysql_error(&mysql_sock->conn));
73 mysql_sock->sock = NULL;
82 /*************************************************************************
84 * Function: sql_destroy_socket
86 * Purpose: Free socket and any private connection data
88 *************************************************************************/
89 static int sql_destroy_socket(SQLSOCK *sqlsocket, SQL_CONFIG *config)
91 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
100 /*************************************************************************
102 * Function: sql_check_error
104 * Purpose: check the error to see if the server is down
106 *************************************************************************/
107 static int sql_check_error(int error)
110 case CR_SERVER_GONE_ERROR:
113 radlog(L_DBG, "rlm_sql_mysql: MYSQL check_error: %d, returning SQL_DOWN", error);
119 case CR_OUT_OF_MEMORY:
120 case CR_COMMANDS_OUT_OF_SYNC:
121 case CR_UNKNOWN_ERROR:
123 radlog(L_DBG, "rlm_sql_mysql: MYSQL check_error: %d received", error);
130 /*************************************************************************
132 * Function: sql_query
134 * Purpose: Issue a query to the database
136 *************************************************************************/
137 static int sql_query(SQLSOCK * sqlsocket, SQL_CONFIG *config, char *querystr)
139 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
141 if (config->sqltrace)
142 radlog(L_DBG,"rlm_sql_mysql: query: %s", querystr);
143 if (mysql_sock->sock == NULL) {
144 radlog(L_ERR, "rlm_sql_mysql: Socket not connected");
148 mysql_query(mysql_sock->sock, querystr);
149 return sql_check_error(mysql_errno(mysql_sock->sock));
153 /*************************************************************************
155 * Function: sql_store_result
157 * Purpose: database specific store_result function. Returns a result
160 *************************************************************************/
161 static int sql_store_result(SQLSOCK * sqlsocket, SQL_CONFIG *config)
163 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
165 if (mysql_sock->sock == NULL) {
166 radlog(L_ERR, "rlm_sql_mysql: Socket not connected");
169 if (!(mysql_sock->result = mysql_store_result(mysql_sock->sock))) {
170 radlog(L_ERR, "rlm_sql_mysql: MYSQL Error: Cannot get result");
171 radlog(L_ERR, "rlm_sql_mysql: MYSQL Error: %s",
172 mysql_error(mysql_sock->sock));
173 return sql_check_error(mysql_errno(mysql_sock->sock));
179 /*************************************************************************
181 * Function: sql_num_fields
183 * Purpose: database specific num_fields function. Returns number
184 * of columns from query
186 *************************************************************************/
187 static int sql_num_fields(SQLSOCK * sqlsocket, SQL_CONFIG *config)
190 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
192 #if MYSQL_VERSION_ID >= 32224
193 if (!(num = mysql_field_count(mysql_sock->sock))) {
195 if (!(num = mysql_num_fields(mysql_sock->sock))) {
197 radlog(L_ERR, "rlm_sql_mysql: MYSQL Error: No Fields");
198 radlog(L_ERR, "rlm_sql_mysql: MYSQL error: %s",
199 mysql_error(mysql_sock->sock));
205 /*************************************************************************
207 * Function: sql_select_query
209 * Purpose: Issue a select query to the database
211 *************************************************************************/
212 static int sql_select_query(SQLSOCK *sqlsocket, SQL_CONFIG *config,
217 ret = sql_query(sqlsocket, config, querystr);
220 ret = sql_store_result(sqlsocket, config);
225 /* Why? Per http://www.mysql.com/doc/n/o/node_591.html,
226 * this cannot return an error. Perhaps just to complain if no
229 sql_num_fields(sqlsocket, config);
235 /*************************************************************************
237 * Function: sql_num_rows
239 * Purpose: database specific num_rows. Returns number of rows in
242 *************************************************************************/
243 static int sql_num_rows(SQLSOCK * sqlsocket, SQL_CONFIG *config)
245 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
247 if (mysql_sock->result)
248 return mysql_num_rows(mysql_sock->result);
254 /*************************************************************************
256 * Function: sql_fetch_row
258 * Purpose: database specific fetch_row. Returns a SQL_ROW struct
259 * with all the data for the query in 'sqlsocket->row'. Returns
260 * 0 on success, -1 on failure, SQL_DOWN if database is down.
262 *************************************************************************/
263 static int sql_fetch_row(SQLSOCK * sqlsocket, SQL_CONFIG *config)
265 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
267 sqlsocket->row = mysql_fetch_row(mysql_sock->result);
269 if (sqlsocket->row == NULL) {
270 return sql_check_error(mysql_errno(mysql_sock->sock));
276 /*************************************************************************
278 * Function: sql_free_result
280 * Purpose: database specific free_result. Frees memory allocated
283 *************************************************************************/
284 static int sql_free_result(SQLSOCK * sqlsocket, SQL_CONFIG *config)
286 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
288 if (mysql_sock->result) {
289 mysql_free_result(mysql_sock->result);
290 mysql_sock->result = NULL;
298 /*************************************************************************
300 * Function: sql_error
302 * Purpose: database specific error. Returns error associated with
305 *************************************************************************/
306 static char *sql_error(SQLSOCK * sqlsocket, SQL_CONFIG *config)
308 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
310 if (mysql_sock == NULL || mysql_sock->sock == NULL) {
311 return "rlm_sql_mysql: no connection to db";
313 return mysql_error(mysql_sock->sock);
317 /*************************************************************************
319 * Function: sql_close
321 * Purpose: database specific close. Closes an open database
324 *************************************************************************/
325 static int sql_close(SQLSOCK * sqlsocket, SQL_CONFIG *config)
327 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
329 if (mysql_sock && mysql_sock->sock){
330 mysql_close(mysql_sock->sock);
331 mysql_sock->sock = NULL;
338 /*************************************************************************
340 * Function: sql_finish_query
342 * Purpose: End the query, such as freeing memory
344 *************************************************************************/
345 static int sql_finish_query(SQLSOCK * sqlsocket, SQL_CONFIG *config)
352 /*************************************************************************
354 * Function: sql_finish_select_query
356 * Purpose: End the select query, such as freeing memory or result
358 *************************************************************************/
359 static int sql_finish_select_query(SQLSOCK * sqlsocket, SQL_CONFIG *config)
361 sql_free_result(sqlsocket, config);
367 /*************************************************************************
369 * Function: sql_affected_rows
371 * Purpose: End the select query, such as freeing memory or result
373 *************************************************************************/
374 static int sql_affected_rows(SQLSOCK * sqlsocket, SQL_CONFIG *config)
376 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
378 return mysql_affected_rows(mysql_sock->sock);
382 /* Exported to rlm_sql */
383 rlm_sql_module_t rlm_sql_mysql = {
397 sql_finish_select_query,