4 * radiusd.h Structures, prototypes and global variables
5 * for the FreeRADIUS server.
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
23 * Copyright 1999,2000,2002,2003,2004,2005,2006,2007,2008 The FreeRADIUS server project
27 #include <freeradius-devel/ident.h>
28 RCSIDH(radiusd_h, "$Id$")
30 #include <freeradius-devel/libradius.h>
31 #include <freeradius-devel/radpaths.h>
32 #include <freeradius-devel/conf.h>
33 #include <freeradius-devel/conffile.h>
34 #include <freeradius-devel/event.h>
36 typedef struct auth_req REQUEST;
38 #include <freeradius-devel/realms.h>
42 typedef pthread_t child_pid_t;
43 #define child_kill pthread_kill
45 typedef pid_t child_pid_t;
46 #define child_kill kill
49 #define NO_SUCH_CHILD_PID (child_pid_t) (0)
52 #define REQUEST_MAGIC (0xdeadbeef)
56 * New defines for minimizing the size of the server, to strip
57 * out functionality. In order to ensure that people don't have
58 * to re-run "configure", after "cvs update", we play some
59 * special games with the defines. i.e. any top-level "configure"
60 * option should set both WITH_FOO and WITHOUT_FOO. After a few
61 * weeks, the WITHOUT_FOO can be deleted from the configure script.
64 #define WITH_PROXY (1)
67 #ifndef WITHOUT_DETAIL
68 #define WITH_DETAIL (1)
74 typedef struct request_data_t request_data_t;
76 typedef struct rad_snmp_client_entry_t rad_snmp_client_entry_t;
78 typedef struct radclient {
84 int message_authenticator;
89 int number; /* internal use only */
90 const CONF_SECTION *cs;
92 rad_snmp_client_entry_t *auth, *acct;
99 * Ordered by priority!
101 typedef enum RAD_LISTEN_TYPE {
115 * For listening on multiple IP's and ports.
117 typedef struct rad_listen_t rad_listen_t;
119 #define REQUEST_DATA_REGEX (0xadbeef00)
120 #define REQUEST_MAX_REGEX (8)
124 uint32_t magic; /* for debugging only */
126 RADIUS_PACKET *packet;
128 RADIUS_PACKET *proxy;
130 RADIUS_PACKET *reply;
132 RADIUS_PACKET *proxy_reply;
134 VALUE_PAIR *config_items;
135 VALUE_PAIR *username;
136 VALUE_PAIR *password;
138 struct main_config_t *root;
140 request_data_t *data;
142 child_pid_t child_pid;
144 int number; /* internal server number */
146 rad_listen_t *listener;
148 rad_listen_t *proxy_listener;
153 int simul_mpp; /* WEIRD: 1 is false, 2 is true */
155 int options; /* miscellanous options */
156 const char *module; /* for debugging unresponsive children */
157 const char *component; /* ditto */
159 struct timeval received;
160 struct timeval when; /* to wake up */
165 RAD_LISTEN_TYPE priority;
168 struct timeval next_when;
169 fr_event_callback_t next_callback;
175 home_server *home_server;
176 home_pool_t *home_pool; /* for dynamic failover */
178 struct timeval proxy_when;
180 int num_proxied_requests;
181 int num_proxied_responses;
186 }; /* REQUEST typedef */
188 #define RAD_REQUEST_OPTION_NONE (0)
190 #define REQUEST_ACTIVE (1)
191 #define REQUEST_STOP_PROCESSING (2)
192 #define REQUEST_COUNTED (3)
194 #define REQUEST_QUEUED (1)
195 #define REQUEST_RUNNING (2)
196 #define REQUEST_PROXIED (3)
197 #define REQUEST_REJECT_DELAY (4)
198 #define REQUEST_CLEANUP_DELAY (5)
199 #define REQUEST_DONE (6)
202 * Function handler for requests.
204 typedef int (*RAD_REQUEST_FUNP)(REQUEST *);
206 typedef struct radclient_list RADCLIENT_LIST;
208 typedef struct pair_list {
214 struct pair_list *next;
215 struct pair_list *lastdefault;
219 typedef int (*rad_listen_recv_t)(rad_listen_t *, RAD_REQUEST_FUNP *, REQUEST **);
220 typedef int (*rad_listen_send_t)(rad_listen_t *, REQUEST *);
221 typedef int (*rad_listen_print_t)(rad_listen_t *, char *, size_t);
222 typedef int (*rad_listen_encode_t)(rad_listen_t *, REQUEST *);
223 typedef int (*rad_listen_decode_t)(rad_listen_t *, REQUEST *);
225 struct rad_listen_t {
226 struct rad_listen_t *next; /* should be rbtree stuff */
229 * For normal sockets.
231 RAD_LISTEN_TYPE type;
235 rad_listen_recv_t recv;
236 rad_listen_send_t send;
237 rad_listen_encode_t encode;
238 rad_listen_decode_t decode;
239 rad_listen_print_t print;
245 typedef enum radlog_dest_t {
254 typedef struct main_config_t {
255 struct main_config *next;
257 fr_ipaddr_t myip; /* from the command-line only */
258 int port; /* from the command-line only */
260 int log_auth_badpass;
261 int log_auth_goodpass;
262 int allow_core_dumps;
267 int max_request_time;
270 #ifdef DELETE_BLOCKED_REQUESTS
271 int kill_unresponsive_children;
275 const char *pid_file;
276 rad_listen_t *listen;
279 radlog_dest_t radlog_dest;
280 CONF_SECTION *config;
285 #define DEBUG if(debug_flag)log_debug
286 #define DEBUG2 if (debug_flag > 1)log_debug
287 #define DEBUG3 if (debug_flag > 2)log_debug
289 #define SECONDS_PER_DAY 86400
290 #define MAX_REQUEST_TIME 30
291 #define CLEANUP_DELAY 5
292 #define MAX_REQUESTS 256
293 #define RETRY_DELAY 5
294 #define RETRY_COUNT 3
295 #define DEAD_TIME 120
310 * This definition of true as NOT false is definitive. :) Making
311 * it '1' can cause problems on stupid platforms. See articles
312 * on C portability for more information.
314 #define TRUE (!FALSE)
317 /* for paircompare_register */
318 typedef int (*RAD_COMPARE_FUNC)(void *instance, REQUEST *,VALUE_PAIR *, VALUE_PAIR *, VALUE_PAIR *, VALUE_PAIR **);
320 typedef enum request_fail_t {
321 REQUEST_FAIL_UNKNOWN = 0,
322 REQUEST_FAIL_NO_THREADS, /* no threads to handle it */
323 REQUEST_FAIL_DECODE, /* rad_decode didn't like it */
324 REQUEST_FAIL_PROXY, /* call to proxy modules failed */
325 REQUEST_FAIL_PROXY_SEND, /* proxy_send didn't like it */
326 REQUEST_FAIL_NO_RESPONSE, /* we weren't told to respond, so we reject */
327 REQUEST_FAIL_HOME_SERVER, /* the home server didn't respond */
328 REQUEST_FAIL_HOME_SERVER2, /* another case of the above */
329 REQUEST_FAIL_HOME_SERVER3, /* another case of the above */
330 REQUEST_FAIL_NORMAL_REJECT, /* authentication failure */
331 REQUEST_FAIL_SERVER_TIMEOUT /* the server took too long to process the request */
337 * We really shouldn't have this many.
339 extern const char *progname;
340 extern int debug_flag;
341 extern const char *radacct_dir;
342 extern const char *radlog_dir;
343 extern const char *radlib_dir;
344 extern const char *radius_dir;
345 extern const char *radius_libdir;
346 extern uint32_t expiration_seconds;
347 extern int log_stripped_names;
348 extern int log_auth_detail;
349 extern const char *radiusd_version;
350 void radius_signal_self(int flag);
352 #define RADIUS_SIGNAL_SELF_NONE (0)
353 #define RADIUS_SIGNAL_SELF_HUP (1 << 0)
354 #define RADIUS_SIGNAL_SELF_TERM (1 << 1)
355 #define RADIUS_SIGNAL_SELF_EXIT (1 << 2)
356 #define RADIUS_SIGNAL_SELF_DETAIL (1 << 3)
357 #define RADIUS_SIGNAL_SELF_NEW_FD (1 << 4)
358 #define RADIUS_SIGNAL_SELF_MAX (1 << 5)
362 * Function prototypes.
366 int rad_accounting(REQUEST *);
369 int rad_check_ts(uint32_t nasaddr, unsigned int port, const char *user,
370 const char *sessionid);
371 int session_zap(REQUEST *request, uint32_t nasaddr,
372 unsigned int port, const char *user,
373 const char *sessionid, uint32_t cliaddr,
374 char proto,int session_time);
378 void debug_pair(VALUE_PAIR *);
379 void debug_pair_list(VALUE_PAIR *);
380 int log_err (char *);
383 void (*reset_signal(int signo, void (*func)(int)))(int);
384 void request_free(REQUEST **request);
385 int rad_mkdir(char *directory, int mode);
386 int rad_checkfilename(const char *filename);
387 void *rad_malloc(size_t size); /* calls exit(1) on error! */
388 REQUEST *request_alloc(void);
389 REQUEST *request_alloc_fake(REQUEST *oldreq);
390 int request_data_add(REQUEST *request,
391 void *unique_ptr, int unique_int,
392 void *opaque, void (*free_opaque)(void *));
393 void *request_data_get(REQUEST *request,
394 void *unique_ptr, int unique_int);
395 void *request_data_reference(REQUEST *request,
396 void *unique_ptr, int unique_int);
397 int rad_copy_string(char *dst, const char *src);
398 int rad_copy_variable(char *dst, const char *from);
401 RADCLIENT_LIST *clients_init(void);
402 void clients_free(RADCLIENT_LIST *clients);
403 RADCLIENT_LIST *clients_parse_section(CONF_SECTION *section);
404 void client_free(RADCLIENT *client);
405 int client_add(RADCLIENT_LIST *clients, RADCLIENT *client);
406 RADCLIENT *client_find(const RADCLIENT_LIST *clients,
407 const fr_ipaddr_t *ipaddr);
408 RADCLIENT *client_findbynumber(const RADCLIENT_LIST *clients,
410 RADCLIENT *client_find_old(const fr_ipaddr_t *ipaddr);
413 int pairlist_read(const char *file, PAIR_LIST **list, int complain);
414 void pairlist_free(PAIR_LIST **);
420 int vradlog(int, const char *, va_list ap);
421 int radlog(int, const char *, ...)
423 __attribute__ ((format (printf, 2, 3)))
426 int log_debug(const char *, ...)
428 __attribute__ ((format (printf, 1, 2)))
431 void vp_listdebug(VALUE_PAIR *vp);
434 char *auth_name(char *buf, size_t buflen, REQUEST *request, int do_cli);
435 int rad_authenticate (REQUEST *);
436 int rad_postauth(REQUEST *);
439 int radius_exec_program(const char *, REQUEST *, int,
440 char *user_msg, int msg_len,
441 VALUE_PAIR *input_pairs,
442 VALUE_PAIR **output_pairs,
446 int timestr_match(char *, time_t);
449 int paircompare_register(int attr, int otherattr,
450 RAD_COMPARE_FUNC func,
452 void paircompare_unregister(int attr, RAD_COMPARE_FUNC func);
453 int paircompare(REQUEST *req, VALUE_PAIR *request, VALUE_PAIR *check,
455 void pairxlatmove(REQUEST *, VALUE_PAIR **to, VALUE_PAIR **from);
456 int radius_compare_vps(REQUEST *request, VALUE_PAIR *check, VALUE_PAIR *vp);
457 int radius_callback_compare(REQUEST *req, VALUE_PAIR *request,
458 VALUE_PAIR *check, VALUE_PAIR *check_pairs,
459 VALUE_PAIR **reply_pairs);
460 int radius_find_compare(int attribute);
461 VALUE_PAIR *radius_paircreate(REQUEST *request, VALUE_PAIR **vps,
462 int attribute, int type);
463 VALUE_PAIR *radius_pairmake(REQUEST *request, VALUE_PAIR **vps,
464 const char *attribute, const char *value,
468 typedef size_t (*RADIUS_ESCAPE_STRING)(char *out, size_t outlen, const char *in);
470 int radius_xlat(char * out, int outlen, const char *fmt,
471 REQUEST * request, RADIUS_ESCAPE_STRING func);
472 typedef size_t (*RAD_XLAT_FUNC)(void *instance, REQUEST *, char *, char *, size_t, RADIUS_ESCAPE_STRING func);
473 int xlat_register(const char *module, RAD_XLAT_FUNC func,
475 void xlat_unregister(const char *module, RAD_XLAT_FUNC func);
476 void xlat_free(void);
479 extern int thread_pool_init(CONF_SECTION *cs, int spawn_flag);
480 extern int thread_pool_addrequest(REQUEST *, RAD_REQUEST_FUNP);
481 extern pid_t rad_fork(void);
482 extern pid_t rad_waitpid(pid_t pid, int *status);
483 extern int total_active_threads(void);
484 extern void thread_pool_lock(void);
485 extern void thread_pool_unlock(void);
487 #ifndef HAVE_PTHREAD_H
488 #define rad_fork(n) fork()
489 #define rad_waitpid(a,b) waitpid(a,b, 0)
493 /* Define a global config structure */
494 extern struct main_config_t mainconfig;
496 int read_mainconfig(int reload);
497 int free_mainconfig(void);
500 void listen_free(rad_listen_t **head);
501 int listen_init(CONF_SECTION *cs, rad_listen_t **head);
502 rad_listen_t *proxy_new_listener(void);
503 RADCLIENT *client_listener_find(const rad_listen_t *listener,
504 const fr_ipaddr_t *ipaddr);
507 int radius_event_init(CONF_SECTION *cs, int spawn_flag);
508 void radius_event_free(void);
509 int radius_event_process(void);
510 void radius_handle_request(REQUEST *request, RAD_REQUEST_FUNP fun);
511 int received_request(rad_listen_t *listener,
512 RADIUS_PACKET *packet, REQUEST **prequest,
514 REQUEST *received_proxy_response(RADIUS_PACKET *packet);
517 int radius_evaluate_condition(REQUEST *request, int modreturn, int depth,
518 const char **ptr, int evaluate_it, int *presult);
519 int radius_update_attrlist(REQUEST *request, CONF_SECTION *cs,
520 VALUE_PAIR *input_vps, const char *name);
521 void radius_pairmove(REQUEST *request, VALUE_PAIR **to, VALUE_PAIR *from);