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>
25 #include <freeradius-devel/autoconf.h>
32 #include <freeradius-devel/radiusd.h>
36 #ifdef HAVE_MYSQL_MYSQL_H
37 #include <mysql/errmsg.h>
38 #include <mysql/mysql.h>
48 typedef struct rlm_sql_mysql_sock {
55 /*************************************************************************
57 * Function: sql_create_socket
59 * Purpose: Establish connection to the db
61 *************************************************************************/
62 static int sql_init_socket(SQLSOCK *sqlsocket, SQL_CONFIG *config)
64 rlm_sql_mysql_sock *mysql_sock;
66 if (!sqlsocket->conn) {
67 sqlsocket->conn = (rlm_sql_mysql_sock *)rad_malloc(sizeof(rlm_sql_mysql_sock));
68 if (!sqlsocket->conn) {
72 mysql_sock = sqlsocket->conn;
73 memset(mysql_sock, 0, sizeof(*mysql_sock));
75 radlog(L_INFO, "rlm_sql_mysql: Starting connect to MySQL server for #%d",
78 mysql_init(&(mysql_sock->conn));
79 mysql_options(&(mysql_sock->conn), MYSQL_READ_DEFAULT_GROUP, "freeradius");
80 if (!(mysql_sock->sock = mysql_real_connect(&(mysql_sock->conn),
85 atoi(config->sql_port),
87 CLIENT_FOUND_ROWS))) {
88 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);
89 radlog(L_ERR, "rlm_sql_mysql: Mysql error '%s'", mysql_error(&mysql_sock->conn));
90 mysql_sock->sock = NULL;
99 /*************************************************************************
101 * Function: sql_destroy_socket
103 * Purpose: Free socket and any private connection data
105 *************************************************************************/
106 static int sql_destroy_socket(SQLSOCK *sqlsocket, UNUSED SQL_CONFIG *config)
108 free(sqlsocket->conn);
109 sqlsocket->conn = NULL;
115 /*************************************************************************
117 * Function: sql_check_error
119 * Purpose: check the error to see if the server is down
121 *************************************************************************/
122 static int sql_check_error(int error)
125 case CR_SERVER_GONE_ERROR:
128 radlog(L_DBG, "rlm_sql_mysql: MYSQL check_error: %d, returning SQL_DOWN", error);
134 case CR_OUT_OF_MEMORY:
135 case CR_COMMANDS_OUT_OF_SYNC:
136 case CR_UNKNOWN_ERROR:
138 radlog(L_DBG, "rlm_sql_mysql: MYSQL check_error: %d received", error);
145 /*************************************************************************
147 * Function: sql_query
149 * Purpose: Issue a query to the database
151 *************************************************************************/
152 static int sql_query(SQLSOCK * sqlsocket, SQL_CONFIG *config, char *querystr)
154 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
156 if (config->sqltrace)
157 radlog(L_DBG,"rlm_sql_mysql: query: %s", querystr);
158 if (mysql_sock->sock == NULL) {
159 radlog(L_ERR, "rlm_sql_mysql: Socket not connected");
163 mysql_query(mysql_sock->sock, querystr);
164 return sql_check_error(mysql_errno(mysql_sock->sock));
168 /*************************************************************************
170 * Function: sql_store_result
172 * Purpose: database specific store_result function. Returns a result
175 *************************************************************************/
176 static int sql_store_result(SQLSOCK * sqlsocket, UNUSED SQL_CONFIG *config)
178 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
180 if (mysql_sock->sock == NULL) {
181 radlog(L_ERR, "rlm_sql_mysql: Socket not connected");
184 if (!(mysql_sock->result = mysql_store_result(mysql_sock->sock))) {
185 radlog(L_ERR, "rlm_sql_mysql: MYSQL Error: Cannot get result");
186 radlog(L_ERR, "rlm_sql_mysql: MYSQL Error: %s",
187 mysql_error(mysql_sock->sock));
188 return sql_check_error(mysql_errno(mysql_sock->sock));
194 /*************************************************************************
196 * Function: sql_num_fields
198 * Purpose: database specific num_fields function. Returns number
199 * of columns from query
201 *************************************************************************/
202 static int sql_num_fields(SQLSOCK * sqlsocket, UNUSED SQL_CONFIG *config)
205 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
207 #if MYSQL_VERSION_ID >= 32224
208 if (!(num = mysql_field_count(mysql_sock->sock))) {
210 if (!(num = mysql_num_fields(mysql_sock->sock))) {
212 radlog(L_ERR, "rlm_sql_mysql: MYSQL Error: No Fields");
213 radlog(L_ERR, "rlm_sql_mysql: MYSQL error: %s",
214 mysql_error(mysql_sock->sock));
220 /*************************************************************************
222 * Function: sql_select_query
224 * Purpose: Issue a select query to the database
226 *************************************************************************/
227 static int sql_select_query(SQLSOCK *sqlsocket, SQL_CONFIG *config,
232 ret = sql_query(sqlsocket, config, querystr);
235 ret = sql_store_result(sqlsocket, config);
240 /* Why? Per http://www.mysql.com/doc/n/o/node_591.html,
241 * this cannot return an error. Perhaps just to complain if no
244 sql_num_fields(sqlsocket, config);
250 /*************************************************************************
252 * Function: sql_num_rows
254 * Purpose: database specific num_rows. Returns number of rows in
257 *************************************************************************/
258 static int sql_num_rows(SQLSOCK * sqlsocket, UNUSED SQL_CONFIG *config)
260 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
262 if (mysql_sock->result)
263 return mysql_num_rows(mysql_sock->result);
269 /*************************************************************************
271 * Function: sql_fetch_row
273 * Purpose: database specific fetch_row. Returns a SQL_ROW struct
274 * with all the data for the query in 'sqlsocket->row'. Returns
275 * 0 on success, -1 on failure, SQL_DOWN if database is down.
277 *************************************************************************/
278 static int sql_fetch_row(SQLSOCK * sqlsocket, UNUSED SQL_CONFIG *config)
280 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
283 * Check pointer before de-referencing it.
285 if (!mysql_sock->result) {
289 sqlsocket->row = mysql_fetch_row(mysql_sock->result);
291 if (sqlsocket->row == NULL) {
292 return sql_check_error(mysql_errno(mysql_sock->sock));
298 /*************************************************************************
300 * Function: sql_free_result
302 * Purpose: database specific free_result. Frees memory allocated
305 *************************************************************************/
306 static int sql_free_result(SQLSOCK * sqlsocket, UNUSED SQL_CONFIG *config)
308 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
310 if (mysql_sock->result) {
311 mysql_free_result(mysql_sock->result);
312 mysql_sock->result = NULL;
320 /*************************************************************************
322 * Function: sql_error
324 * Purpose: database specific error. Returns error associated with
327 *************************************************************************/
328 static char *sql_error(SQLSOCK * sqlsocket, UNUSED SQL_CONFIG *config)
330 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
332 if (mysql_sock == NULL || mysql_sock->sock == NULL) {
333 return "rlm_sql_mysql: no connection to db";
335 return mysql_error(mysql_sock->sock);
339 /*************************************************************************
341 * Function: sql_close
343 * Purpose: database specific close. Closes an open database
346 *************************************************************************/
347 static int sql_close(SQLSOCK * sqlsocket, UNUSED SQL_CONFIG *config)
349 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
351 if (mysql_sock && mysql_sock->sock){
352 mysql_close(mysql_sock->sock);
353 mysql_sock->sock = NULL;
360 /*************************************************************************
362 * Function: sql_finish_query
364 * Purpose: End the query, such as freeing memory
366 *************************************************************************/
367 static int sql_finish_query(UNUSED SQLSOCK * sqlsocket, UNUSED SQL_CONFIG *config)
374 /*************************************************************************
376 * Function: sql_finish_select_query
378 * Purpose: End the select query, such as freeing memory or result
380 *************************************************************************/
381 static int sql_finish_select_query(SQLSOCK * sqlsocket, SQL_CONFIG *config)
383 sql_free_result(sqlsocket, config);
389 /*************************************************************************
391 * Function: sql_affected_rows
393 * Purpose: End the select query, such as freeing memory or result
395 *************************************************************************/
396 static int sql_affected_rows(SQLSOCK * sqlsocket, UNUSED SQL_CONFIG *config)
398 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
400 return mysql_affected_rows(mysql_sock->sock);
404 /* Exported to rlm_sql */
405 rlm_sql_module_t rlm_sql_mysql = {
419 sql_finish_select_query,