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;
58 memset(mysql_sock, 0, sizeof(*mysql_sock));
60 radlog(L_INFO, "rlm_sql_mysql: Starting connect to MySQL server for #%d",
63 mysql_init(&(mysql_sock->conn));
64 if (!(mysql_sock->sock = mysql_real_connect(&(mysql_sock->conn),
69 atoi(config->sql_port),
71 CLIENT_FOUND_ROWS))) {
72 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);
73 radlog(L_ERR, "rlm_sql_mysql: Mysql error '%s'", mysql_error(&mysql_sock->conn));
74 mysql_sock->sock = NULL;
83 /*************************************************************************
85 * Function: sql_destroy_socket
87 * Purpose: Free socket and any private connection data
89 *************************************************************************/
90 static int sql_destroy_socket(SQLSOCK *sqlsocket, SQL_CONFIG *config)
92 free(sqlsocket->conn);
93 sqlsocket->conn = NULL;
99 /*************************************************************************
101 * Function: sql_check_error
103 * Purpose: check the error to see if the server is down
105 *************************************************************************/
106 static int sql_check_error(int error)
109 case CR_SERVER_GONE_ERROR:
112 radlog(L_DBG, "rlm_sql_mysql: MYSQL check_error: %d, returning SQL_DOWN", error);
118 case CR_OUT_OF_MEMORY:
119 case CR_COMMANDS_OUT_OF_SYNC:
120 case CR_UNKNOWN_ERROR:
122 radlog(L_DBG, "rlm_sql_mysql: MYSQL check_error: %d received", error);
129 /*************************************************************************
131 * Function: sql_query
133 * Purpose: Issue a query to the database
135 *************************************************************************/
136 static int sql_query(SQLSOCK * sqlsocket, SQL_CONFIG *config, char *querystr)
138 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
140 if (config->sqltrace)
141 radlog(L_DBG,"rlm_sql_mysql: query: %s", querystr);
142 if (mysql_sock->sock == NULL) {
143 radlog(L_ERR, "rlm_sql_mysql: Socket not connected");
147 mysql_query(mysql_sock->sock, querystr);
148 return sql_check_error(mysql_errno(mysql_sock->sock));
152 /*************************************************************************
154 * Function: sql_store_result
156 * Purpose: database specific store_result function. Returns a result
159 *************************************************************************/
160 static int sql_store_result(SQLSOCK * sqlsocket, SQL_CONFIG *config)
162 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
164 if (mysql_sock->sock == NULL) {
165 radlog(L_ERR, "rlm_sql_mysql: Socket not connected");
168 if (!(mysql_sock->result = mysql_store_result(mysql_sock->sock))) {
169 radlog(L_ERR, "rlm_sql_mysql: MYSQL Error: Cannot get result");
170 radlog(L_ERR, "rlm_sql_mysql: MYSQL Error: %s",
171 mysql_error(mysql_sock->sock));
172 return sql_check_error(mysql_errno(mysql_sock->sock));
178 /*************************************************************************
180 * Function: sql_num_fields
182 * Purpose: database specific num_fields function. Returns number
183 * of columns from query
185 *************************************************************************/
186 static int sql_num_fields(SQLSOCK * sqlsocket, SQL_CONFIG *config)
189 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
191 #if MYSQL_VERSION_ID >= 32224
192 if (!(num = mysql_field_count(mysql_sock->sock))) {
194 if (!(num = mysql_num_fields(mysql_sock->sock))) {
196 radlog(L_ERR, "rlm_sql_mysql: MYSQL Error: No Fields");
197 radlog(L_ERR, "rlm_sql_mysql: MYSQL error: %s",
198 mysql_error(mysql_sock->sock));
204 /*************************************************************************
206 * Function: sql_select_query
208 * Purpose: Issue a select query to the database
210 *************************************************************************/
211 static int sql_select_query(SQLSOCK *sqlsocket, SQL_CONFIG *config,
216 ret = sql_query(sqlsocket, config, querystr);
219 ret = sql_store_result(sqlsocket, config);
224 /* Why? Per http://www.mysql.com/doc/n/o/node_591.html,
225 * this cannot return an error. Perhaps just to complain if no
228 sql_num_fields(sqlsocket, config);
234 /*************************************************************************
236 * Function: sql_num_rows
238 * Purpose: database specific num_rows. Returns number of rows in
241 *************************************************************************/
242 static int sql_num_rows(SQLSOCK * sqlsocket, SQL_CONFIG *config)
244 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
246 if (mysql_sock->result)
247 return mysql_num_rows(mysql_sock->result);
253 /*************************************************************************
255 * Function: sql_fetch_row
257 * Purpose: database specific fetch_row. Returns a SQL_ROW struct
258 * with all the data for the query in 'sqlsocket->row'. Returns
259 * 0 on success, -1 on failure, SQL_DOWN if database is down.
261 *************************************************************************/
262 static int sql_fetch_row(SQLSOCK * sqlsocket, SQL_CONFIG *config)
264 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
267 * Check pointer before de-referencing it.
269 if (!mysql_sock->result) {
273 sqlsocket->row = mysql_fetch_row(mysql_sock->result);
275 if (sqlsocket->row == NULL) {
276 return sql_check_error(mysql_errno(mysql_sock->sock));
282 /*************************************************************************
284 * Function: sql_free_result
286 * Purpose: database specific free_result. Frees memory allocated
289 *************************************************************************/
290 static int sql_free_result(SQLSOCK * sqlsocket, SQL_CONFIG *config)
292 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
294 if (mysql_sock->result) {
295 mysql_free_result(mysql_sock->result);
296 mysql_sock->result = NULL;
304 /*************************************************************************
306 * Function: sql_error
308 * Purpose: database specific error. Returns error associated with
311 *************************************************************************/
312 static char *sql_error(SQLSOCK * sqlsocket, SQL_CONFIG *config)
314 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
316 if (mysql_sock == NULL || mysql_sock->sock == NULL) {
317 return "rlm_sql_mysql: no connection to db";
319 return mysql_error(mysql_sock->sock);
323 /*************************************************************************
325 * Function: sql_close
327 * Purpose: database specific close. Closes an open database
330 *************************************************************************/
331 static int sql_close(SQLSOCK * sqlsocket, SQL_CONFIG *config)
333 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
335 if (mysql_sock && mysql_sock->sock){
336 mysql_close(mysql_sock->sock);
337 mysql_sock->sock = NULL;
344 /*************************************************************************
346 * Function: sql_finish_query
348 * Purpose: End the query, such as freeing memory
350 *************************************************************************/
351 static int sql_finish_query(SQLSOCK * sqlsocket, SQL_CONFIG *config)
358 /*************************************************************************
360 * Function: sql_finish_select_query
362 * Purpose: End the select query, such as freeing memory or result
364 *************************************************************************/
365 static int sql_finish_select_query(SQLSOCK * sqlsocket, SQL_CONFIG *config)
367 sql_free_result(sqlsocket, config);
373 /*************************************************************************
375 * Function: sql_affected_rows
377 * Purpose: End the select query, such as freeing memory or result
379 *************************************************************************/
380 static int sql_affected_rows(SQLSOCK * sqlsocket, SQL_CONFIG *config)
382 rlm_sql_mysql_sock *mysql_sock = sqlsocket->conn;
384 return mysql_affected_rows(mysql_sock->sock);
388 /* Exported to rlm_sql */
389 rlm_sql_module_t rlm_sql_mysql = {
403 sql_finish_select_query,