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;
40 typedef pthread_t child_pid_t;
41 #define NO_SUCH_CHILD_PID (child_pid_t) (0)
45 #define REQUEST_MAGIC (0xdeadbeef)
49 * New defines for minimizing the size of the server, to strip
50 * out functionality. In order to ensure that people don't have
51 * to re-run "configure", after "cvs update", we play some
52 * special games with the defines. i.e. any top-level "configure"
53 * option should set both WITH_FOO and WITHOUT_FOO. After a few
54 * weeks, the WITHOUT_FOO can be deleted from the configure script.
57 #define WITH_PROXY (1)
60 #ifndef WITHOUT_DETAIL
61 #define WITH_DETAIL (1)
64 #ifndef WITHOUT_SESSION_MGMT
65 #define WITH_SESSION_MGMT (1)
68 #ifndef WITHOUT_UNLANG
69 #define WITH_UNLANG (1)
72 #ifndef WITHOUT_ACCOUNTING
73 #define WITH_ACCOUNTING (1)
75 #ifdef WITH_SESSION_MGMT
76 #error WITH_SESSION_MGMT is defined, but WITH_ACCOUNTING is not. Session management requires accounting.
79 #error WITH_DETAIL is defined, but WITH_ACCOUNTING is not. Detail file reading requires accounting.
83 #ifndef WITHOUT_DYNAMIC_CLIENTS
84 #define WITH_DYNAMIC_CLIENTS (1)
90 #include <freeradius-devel/stats.h>
91 #include <freeradius-devel/realms.h>
97 typedef struct request_data_t request_data_t;
99 typedef struct radclient {
105 int message_authenticator;
110 int number; /* internal use only */
111 const CONF_SECTION *cs;
113 fr_client_stats_t *auth;
114 #ifdef WITH_ACCOUNTING
115 fr_client_stats_t *acct;
119 #ifdef WITH_DYNAMIC_CLIENTS
121 int dynamic; /* was dynamically defined */
123 time_t last_new_client;
129 * Types of listeners.
131 * Ordered by priority!
133 typedef enum RAD_LISTEN_TYPE {
147 * For listening on multiple IP's and ports.
149 typedef struct rad_listen_t rad_listen_t;
151 #define REQUEST_DATA_REGEX (0xadbeef00)
152 #define REQUEST_MAX_REGEX (8)
156 uint32_t magic; /* for debugging only */
158 RADIUS_PACKET *packet;
160 RADIUS_PACKET *proxy;
162 RADIUS_PACKET *reply;
164 RADIUS_PACKET *proxy_reply;
166 VALUE_PAIR *config_items;
167 VALUE_PAIR *username;
168 VALUE_PAIR *password;
170 struct main_config_t *root;
172 request_data_t *data;
174 #ifdef HAVE_PTHREAD_H
175 child_pid_t child_pid;
178 int number; /* internal server number */
180 rad_listen_t *listener;
182 rad_listen_t *proxy_listener;
186 int simul_max; /* see modcall.c && xlat.c */
187 #ifdef WITH_SESSION_MGMT
189 int simul_mpp; /* WEIRD: 1 is false, 2 is true */
192 int options; /* miscellanous options */
193 const char *module; /* for debugging unresponsive children */
194 const char *component; /* ditto */
196 struct timeval received;
197 struct timeval when; /* to wake up */
202 RAD_LISTEN_TYPE priority;
205 struct timeval next_when;
206 fr_event_callback_t next_callback;
212 home_server *home_server;
213 home_pool_t *home_pool; /* for dynamic failover */
215 struct timeval proxy_when;
217 int num_proxied_requests;
218 int num_proxied_responses;
223 }; /* REQUEST typedef */
225 #define RAD_REQUEST_OPTION_NONE (0)
227 #define REQUEST_ACTIVE (1)
228 #define REQUEST_STOP_PROCESSING (2)
229 #define REQUEST_COUNTED (3)
231 #define REQUEST_QUEUED (1)
232 #define REQUEST_RUNNING (2)
233 #define REQUEST_PROXIED (3)
234 #define REQUEST_REJECT_DELAY (4)
235 #define REQUEST_CLEANUP_DELAY (5)
236 #define REQUEST_DONE (6)
239 * Function handler for requests.
241 typedef int (*RAD_REQUEST_FUNP)(REQUEST *);
243 typedef struct radclient_list RADCLIENT_LIST;
245 typedef struct pair_list {
251 struct pair_list *next;
252 struct pair_list *lastdefault;
256 typedef int (*rad_listen_recv_t)(rad_listen_t *, RAD_REQUEST_FUNP *, REQUEST **);
257 typedef int (*rad_listen_send_t)(rad_listen_t *, REQUEST *);
258 typedef int (*rad_listen_print_t)(rad_listen_t *, char *, size_t);
259 typedef int (*rad_listen_encode_t)(rad_listen_t *, REQUEST *);
260 typedef int (*rad_listen_decode_t)(rad_listen_t *, REQUEST *);
262 struct rad_listen_t {
263 struct rad_listen_t *next; /* should be rbtree stuff */
266 * For normal sockets.
268 RAD_LISTEN_TYPE type;
272 rad_listen_recv_t recv;
273 rad_listen_send_t send;
274 rad_listen_encode_t encode;
275 rad_listen_decode_t decode;
276 rad_listen_print_t print;
286 typedef enum radlog_dest_t {
295 typedef struct main_config_t {
296 struct main_config *next;
298 fr_ipaddr_t myip; /* from the command-line only */
299 int port; /* from the command-line only */
301 int log_auth_badpass;
302 int log_auth_goodpass;
303 int allow_core_dumps;
308 int max_request_time;
311 #ifdef DELETE_BLOCKED_REQUESTS
312 int kill_unresponsive_children;
316 const char *pid_file;
317 rad_listen_t *listen;
320 radlog_dest_t radlog_dest;
321 CONF_SECTION *config;
326 #define DEBUG if(debug_flag)log_debug
327 #define DEBUG2 if (debug_flag > 1)log_debug
328 #define DEBUG3 if (debug_flag > 2)log_debug
330 #define SECONDS_PER_DAY 86400
331 #define MAX_REQUEST_TIME 30
332 #define CLEANUP_DELAY 5
333 #define MAX_REQUESTS 256
334 #define RETRY_DELAY 5
335 #define RETRY_COUNT 3
336 #define DEAD_TIME 120
351 * This definition of true as NOT false is definitive. :) Making
352 * it '1' can cause problems on stupid platforms. See articles
353 * on C portability for more information.
355 #define TRUE (!FALSE)
358 /* for paircompare_register */
359 typedef int (*RAD_COMPARE_FUNC)(void *instance, REQUEST *,VALUE_PAIR *, VALUE_PAIR *, VALUE_PAIR *, VALUE_PAIR **);
361 typedef enum request_fail_t {
362 REQUEST_FAIL_UNKNOWN = 0,
363 REQUEST_FAIL_NO_THREADS, /* no threads to handle it */
364 REQUEST_FAIL_DECODE, /* rad_decode didn't like it */
365 REQUEST_FAIL_PROXY, /* call to proxy modules failed */
366 REQUEST_FAIL_PROXY_SEND, /* proxy_send didn't like it */
367 REQUEST_FAIL_NO_RESPONSE, /* we weren't told to respond, so we reject */
368 REQUEST_FAIL_HOME_SERVER, /* the home server didn't respond */
369 REQUEST_FAIL_HOME_SERVER2, /* another case of the above */
370 REQUEST_FAIL_HOME_SERVER3, /* another case of the above */
371 REQUEST_FAIL_NORMAL_REJECT, /* authentication failure */
372 REQUEST_FAIL_SERVER_TIMEOUT /* the server took too long to process the request */
378 * We really shouldn't have this many.
380 extern const char *progname;
381 extern int debug_flag;
382 extern const char *radacct_dir;
383 extern const char *radlog_dir;
384 extern const char *radlib_dir;
385 extern const char *radius_dir;
386 extern const char *radius_libdir;
387 extern uint32_t expiration_seconds;
388 extern int log_stripped_names;
389 extern int log_auth_detail;
390 extern const char *radiusd_version;
391 void radius_signal_self(int flag);
393 #define RADIUS_SIGNAL_SELF_NONE (0)
394 #define RADIUS_SIGNAL_SELF_HUP (1 << 0)
395 #define RADIUS_SIGNAL_SELF_TERM (1 << 1)
396 #define RADIUS_SIGNAL_SELF_EXIT (1 << 2)
397 #define RADIUS_SIGNAL_SELF_DETAIL (1 << 3)
398 #define RADIUS_SIGNAL_SELF_NEW_FD (1 << 4)
399 #define RADIUS_SIGNAL_SELF_MAX (1 << 5)
403 * Function prototypes.
407 int rad_accounting(REQUEST *);
410 int rad_check_ts(uint32_t nasaddr, unsigned int port, const char *user,
411 const char *sessionid);
412 int session_zap(REQUEST *request, uint32_t nasaddr,
413 unsigned int port, const char *user,
414 const char *sessionid, uint32_t cliaddr,
415 char proto,int session_time);
419 void debug_pair(VALUE_PAIR *);
420 void debug_pair_list(VALUE_PAIR *);
421 int log_err (char *);
424 void (*reset_signal(int signo, void (*func)(int)))(int);
425 void request_free(REQUEST **request);
426 int rad_mkdir(char *directory, int mode);
427 int rad_checkfilename(const char *filename);
428 void *rad_malloc(size_t size); /* calls exit(1) on error! */
429 REQUEST *request_alloc(void);
430 REQUEST *request_alloc_fake(REQUEST *oldreq);
431 int request_data_add(REQUEST *request,
432 void *unique_ptr, int unique_int,
433 void *opaque, void (*free_opaque)(void *));
434 void *request_data_get(REQUEST *request,
435 void *unique_ptr, int unique_int);
436 void *request_data_reference(REQUEST *request,
437 void *unique_ptr, int unique_int);
438 int rad_copy_string(char *dst, const char *src);
439 int rad_copy_variable(char *dst, const char *from);
442 RADCLIENT_LIST *clients_init(void);
443 void clients_free(RADCLIENT_LIST *clients);
444 RADCLIENT_LIST *clients_parse_section(CONF_SECTION *section);
445 void client_free(RADCLIENT *client);
446 int client_add(RADCLIENT_LIST *clients, RADCLIENT *client);
447 #ifdef WITH_DYNAMIC_CLIENTS
448 void client_delete(RADCLIENT_LIST *clients, RADCLIENT *client);
449 RADCLIENT *client_create(RADCLIENT_LIST *clients, REQUEST *request);
451 RADCLIENT *client_find(const RADCLIENT_LIST *clients,
452 const fr_ipaddr_t *ipaddr);
453 RADCLIENT *client_findbynumber(const RADCLIENT_LIST *clients,
455 RADCLIENT *client_find_old(const fr_ipaddr_t *ipaddr);
458 int pairlist_read(const char *file, PAIR_LIST **list, int complain);
459 void pairlist_free(PAIR_LIST **);
465 int vradlog(int, const char *, va_list ap);
466 int radlog(int, const char *, ...)
468 __attribute__ ((format (printf, 2, 3)))
471 int log_debug(const char *, ...)
473 __attribute__ ((format (printf, 1, 2)))
476 void vp_listdebug(VALUE_PAIR *vp);
479 char *auth_name(char *buf, size_t buflen, REQUEST *request, int do_cli);
480 int rad_authenticate (REQUEST *);
481 int rad_postauth(REQUEST *);
484 int radius_exec_program(const char *, REQUEST *, int,
485 char *user_msg, int msg_len,
486 VALUE_PAIR *input_pairs,
487 VALUE_PAIR **output_pairs,
491 int timestr_match(char *, time_t);
494 int paircompare_register(int attr, int otherattr,
495 RAD_COMPARE_FUNC func,
497 void paircompare_unregister(int attr, RAD_COMPARE_FUNC func);
498 int paircompare(REQUEST *req, VALUE_PAIR *request, VALUE_PAIR *check,
500 void pairxlatmove(REQUEST *, VALUE_PAIR **to, VALUE_PAIR **from);
501 int radius_compare_vps(REQUEST *request, VALUE_PAIR *check, VALUE_PAIR *vp);
502 int radius_callback_compare(REQUEST *req, VALUE_PAIR *request,
503 VALUE_PAIR *check, VALUE_PAIR *check_pairs,
504 VALUE_PAIR **reply_pairs);
505 int radius_find_compare(int attribute);
506 VALUE_PAIR *radius_paircreate(REQUEST *request, VALUE_PAIR **vps,
507 int attribute, int type);
508 VALUE_PAIR *radius_pairmake(REQUEST *request, VALUE_PAIR **vps,
509 const char *attribute, const char *value,
513 typedef size_t (*RADIUS_ESCAPE_STRING)(char *out, size_t outlen, const char *in);
515 int radius_xlat(char * out, int outlen, const char *fmt,
516 REQUEST * request, RADIUS_ESCAPE_STRING func);
517 typedef size_t (*RAD_XLAT_FUNC)(void *instance, REQUEST *, char *, char *, size_t, RADIUS_ESCAPE_STRING func);
518 int xlat_register(const char *module, RAD_XLAT_FUNC func,
520 void xlat_unregister(const char *module, RAD_XLAT_FUNC func);
521 void xlat_free(void);
524 extern int thread_pool_init(CONF_SECTION *cs, int spawn_flag);
525 extern int thread_pool_addrequest(REQUEST *, RAD_REQUEST_FUNP);
526 extern pid_t rad_fork(void);
527 extern pid_t rad_waitpid(pid_t pid, int *status);
528 extern int total_active_threads(void);
529 extern void thread_pool_lock(void);
530 extern void thread_pool_unlock(void);
531 extern void thread_pool_queue_stats(int *array);
533 #ifndef HAVE_PTHREAD_H
534 #define rad_fork(n) fork()
535 #define rad_waitpid(a,b) waitpid(a,b, 0)
539 /* Define a global config structure */
540 extern struct main_config_t mainconfig;
542 int read_mainconfig(int reload);
543 int free_mainconfig(void);
546 void listen_free(rad_listen_t **head);
547 int listen_init(CONF_SECTION *cs, rad_listen_t **head);
548 rad_listen_t *proxy_new_listener(void);
549 RADCLIENT *client_listener_find(const rad_listen_t *listener,
550 const fr_ipaddr_t *ipaddr);
552 RADCLIENT_LIST *listener_find_client_list(const fr_ipaddr_t *ipaddr,
554 rad_listen_t *listener_find_byipaddr(const fr_ipaddr_t *ipaddr, int port);
558 int radius_event_init(CONF_SECTION *cs, int spawn_flag);
559 void radius_event_free(void);
560 int radius_event_process(void);
561 void radius_handle_request(REQUEST *request, RAD_REQUEST_FUNP fun);
562 int received_request(rad_listen_t *listener,
563 RADIUS_PACKET *packet, REQUEST **prequest,
565 REQUEST *received_proxy_response(RADIUS_PACKET *packet);
568 int radius_evaluate_condition(REQUEST *request, int modreturn, int depth,
569 const char **ptr, int evaluate_it, int *presult);
570 int radius_update_attrlist(REQUEST *request, CONF_SECTION *cs,
571 VALUE_PAIR *input_vps, const char *name);
572 void radius_pairmove(REQUEST *request, VALUE_PAIR **to, VALUE_PAIR *from);