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 NO_SUCH_CHILD_PID (child_pid_t) (0)
47 #define REQUEST_MAGIC (0xdeadbeef)
51 * New defines for minimizing the size of the server, to strip
52 * out functionality. In order to ensure that people don't have
53 * to re-run "configure", after "cvs update", we play some
54 * special games with the defines. i.e. any top-level "configure"
55 * option should set both WITH_FOO and WITHOUT_FOO. After a few
56 * weeks, the WITHOUT_FOO can be deleted from the configure script.
59 #define WITH_PROXY (1)
62 #ifndef WITHOUT_DETAIL
63 #define WITH_DETAIL (1)
66 #ifndef WITHOUT_SESSION_MGMT
67 #define WITH_SESSION_MGMT (1)
70 #ifndef WITHOUT_UNLANG
71 #define WITH_UNLANG (1)
74 #ifndef WITHOUT_ACCOUNTING
75 #define WITH_ACCOUNTING (1)
77 #ifdef WITH_SESSION_MGMT
78 #error WITH_SESSION_MGMT is defined, but WITH_ACCOUNTING is not. Session management requires accounting.
81 #error WITH_DETAIL is defined, but WITH_ACCOUNTING is not. Detail file reading requires accounting.
85 #ifndef WITHOUT_DYNAMIC_CLIENTS
86 #define WITH_DYNAMIC_CLIENTS (1)
92 typedef struct request_data_t request_data_t;
94 typedef struct rad_snmp_client_entry_t rad_snmp_client_entry_t;
96 typedef struct radclient {
102 int message_authenticator;
107 int number; /* internal use only */
108 const CONF_SECTION *cs;
110 rad_snmp_client_entry_t *auth;
111 #ifdef WITH_ACCOUNTING
112 rad_snmp_client_entry_t *acct;
116 #ifdef WITH_DYNAMIC_CLIENTS
118 int dynamic; /* was dynamically defined */
120 time_t last_new_client;
126 * Types of listeners.
128 * Ordered by priority!
130 typedef enum RAD_LISTEN_TYPE {
144 * For listening on multiple IP's and ports.
146 typedef struct rad_listen_t rad_listen_t;
148 #define REQUEST_DATA_REGEX (0xadbeef00)
149 #define REQUEST_MAX_REGEX (8)
153 uint32_t magic; /* for debugging only */
155 RADIUS_PACKET *packet;
157 RADIUS_PACKET *proxy;
159 RADIUS_PACKET *reply;
161 RADIUS_PACKET *proxy_reply;
163 VALUE_PAIR *config_items;
164 VALUE_PAIR *username;
165 VALUE_PAIR *password;
167 struct main_config_t *root;
169 request_data_t *data;
171 #ifdef HAVE_PTHREAD_H
172 child_pid_t child_pid;
175 int number; /* internal server number */
177 rad_listen_t *listener;
179 rad_listen_t *proxy_listener;
183 int simul_max; /* see modcall.c && xlat.c */
184 #ifdef WITH_SESSION_MGMT
186 int simul_mpp; /* WEIRD: 1 is false, 2 is true */
189 int options; /* miscellanous options */
190 const char *module; /* for debugging unresponsive children */
191 const char *component; /* ditto */
193 struct timeval received;
194 struct timeval when; /* to wake up */
199 RAD_LISTEN_TYPE priority;
202 struct timeval next_when;
203 fr_event_callback_t next_callback;
209 home_server *home_server;
210 home_pool_t *home_pool; /* for dynamic failover */
212 struct timeval proxy_when;
214 int num_proxied_requests;
215 int num_proxied_responses;
220 }; /* REQUEST typedef */
222 #define RAD_REQUEST_OPTION_NONE (0)
224 #define REQUEST_ACTIVE (1)
225 #define REQUEST_STOP_PROCESSING (2)
226 #define REQUEST_COUNTED (3)
228 #define REQUEST_QUEUED (1)
229 #define REQUEST_RUNNING (2)
230 #define REQUEST_PROXIED (3)
231 #define REQUEST_REJECT_DELAY (4)
232 #define REQUEST_CLEANUP_DELAY (5)
233 #define REQUEST_DONE (6)
236 * Function handler for requests.
238 typedef int (*RAD_REQUEST_FUNP)(REQUEST *);
240 typedef struct radclient_list RADCLIENT_LIST;
242 typedef struct pair_list {
248 struct pair_list *next;
249 struct pair_list *lastdefault;
253 typedef int (*rad_listen_recv_t)(rad_listen_t *, RAD_REQUEST_FUNP *, REQUEST **);
254 typedef int (*rad_listen_send_t)(rad_listen_t *, REQUEST *);
255 typedef int (*rad_listen_print_t)(rad_listen_t *, char *, size_t);
256 typedef int (*rad_listen_encode_t)(rad_listen_t *, REQUEST *);
257 typedef int (*rad_listen_decode_t)(rad_listen_t *, REQUEST *);
259 struct rad_listen_t {
260 struct rad_listen_t *next; /* should be rbtree stuff */
263 * For normal sockets.
265 RAD_LISTEN_TYPE type;
269 rad_listen_recv_t recv;
270 rad_listen_send_t send;
271 rad_listen_encode_t encode;
272 rad_listen_decode_t decode;
273 rad_listen_print_t print;
279 typedef enum radlog_dest_t {
288 typedef struct main_config_t {
289 struct main_config *next;
291 fr_ipaddr_t myip; /* from the command-line only */
292 int port; /* from the command-line only */
294 int log_auth_badpass;
295 int log_auth_goodpass;
296 int allow_core_dumps;
301 int max_request_time;
304 #ifdef DELETE_BLOCKED_REQUESTS
305 int kill_unresponsive_children;
309 const char *pid_file;
310 rad_listen_t *listen;
313 radlog_dest_t radlog_dest;
314 CONF_SECTION *config;
319 #define DEBUG if(debug_flag)log_debug
320 #define DEBUG2 if (debug_flag > 1)log_debug
321 #define DEBUG3 if (debug_flag > 2)log_debug
323 #define SECONDS_PER_DAY 86400
324 #define MAX_REQUEST_TIME 30
325 #define CLEANUP_DELAY 5
326 #define MAX_REQUESTS 256
327 #define RETRY_DELAY 5
328 #define RETRY_COUNT 3
329 #define DEAD_TIME 120
344 * This definition of true as NOT false is definitive. :) Making
345 * it '1' can cause problems on stupid platforms. See articles
346 * on C portability for more information.
348 #define TRUE (!FALSE)
351 /* for paircompare_register */
352 typedef int (*RAD_COMPARE_FUNC)(void *instance, REQUEST *,VALUE_PAIR *, VALUE_PAIR *, VALUE_PAIR *, VALUE_PAIR **);
354 typedef enum request_fail_t {
355 REQUEST_FAIL_UNKNOWN = 0,
356 REQUEST_FAIL_NO_THREADS, /* no threads to handle it */
357 REQUEST_FAIL_DECODE, /* rad_decode didn't like it */
358 REQUEST_FAIL_PROXY, /* call to proxy modules failed */
359 REQUEST_FAIL_PROXY_SEND, /* proxy_send didn't like it */
360 REQUEST_FAIL_NO_RESPONSE, /* we weren't told to respond, so we reject */
361 REQUEST_FAIL_HOME_SERVER, /* the home server didn't respond */
362 REQUEST_FAIL_HOME_SERVER2, /* another case of the above */
363 REQUEST_FAIL_HOME_SERVER3, /* another case of the above */
364 REQUEST_FAIL_NORMAL_REJECT, /* authentication failure */
365 REQUEST_FAIL_SERVER_TIMEOUT /* the server took too long to process the request */
371 * We really shouldn't have this many.
373 extern const char *progname;
374 extern int debug_flag;
375 extern const char *radacct_dir;
376 extern const char *radlog_dir;
377 extern const char *radlib_dir;
378 extern const char *radius_dir;
379 extern const char *radius_libdir;
380 extern uint32_t expiration_seconds;
381 extern int log_stripped_names;
382 extern int log_auth_detail;
383 extern const char *radiusd_version;
384 void radius_signal_self(int flag);
386 #define RADIUS_SIGNAL_SELF_NONE (0)
387 #define RADIUS_SIGNAL_SELF_HUP (1 << 0)
388 #define RADIUS_SIGNAL_SELF_TERM (1 << 1)
389 #define RADIUS_SIGNAL_SELF_EXIT (1 << 2)
390 #define RADIUS_SIGNAL_SELF_DETAIL (1 << 3)
391 #define RADIUS_SIGNAL_SELF_NEW_FD (1 << 4)
392 #define RADIUS_SIGNAL_SELF_MAX (1 << 5)
396 * Function prototypes.
400 int rad_accounting(REQUEST *);
403 int rad_check_ts(uint32_t nasaddr, unsigned int port, const char *user,
404 const char *sessionid);
405 int session_zap(REQUEST *request, uint32_t nasaddr,
406 unsigned int port, const char *user,
407 const char *sessionid, uint32_t cliaddr,
408 char proto,int session_time);
412 void debug_pair(VALUE_PAIR *);
413 void debug_pair_list(VALUE_PAIR *);
414 int log_err (char *);
417 void (*reset_signal(int signo, void (*func)(int)))(int);
418 void request_free(REQUEST **request);
419 int rad_mkdir(char *directory, int mode);
420 int rad_checkfilename(const char *filename);
421 void *rad_malloc(size_t size); /* calls exit(1) on error! */
422 REQUEST *request_alloc(void);
423 REQUEST *request_alloc_fake(REQUEST *oldreq);
424 int request_data_add(REQUEST *request,
425 void *unique_ptr, int unique_int,
426 void *opaque, void (*free_opaque)(void *));
427 void *request_data_get(REQUEST *request,
428 void *unique_ptr, int unique_int);
429 void *request_data_reference(REQUEST *request,
430 void *unique_ptr, int unique_int);
431 int rad_copy_string(char *dst, const char *src);
432 int rad_copy_variable(char *dst, const char *from);
435 RADCLIENT_LIST *clients_init(void);
436 void clients_free(RADCLIENT_LIST *clients);
437 RADCLIENT_LIST *clients_parse_section(CONF_SECTION *section);
438 void client_free(RADCLIENT *client);
439 int client_add(RADCLIENT_LIST *clients, RADCLIENT *client);
440 #ifdef WITH_DYNAMIC_CLIENTS
441 void client_delete(RADCLIENT_LIST *clients, RADCLIENT *client);
442 RADCLIENT *client_create(RADCLIENT_LIST *clients, REQUEST *request);
444 RADCLIENT *client_find(const RADCLIENT_LIST *clients,
445 const fr_ipaddr_t *ipaddr);
446 RADCLIENT *client_findbynumber(const RADCLIENT_LIST *clients,
448 RADCLIENT *client_find_old(const fr_ipaddr_t *ipaddr);
451 int pairlist_read(const char *file, PAIR_LIST **list, int complain);
452 void pairlist_free(PAIR_LIST **);
458 int vradlog(int, const char *, va_list ap);
459 int radlog(int, const char *, ...)
461 __attribute__ ((format (printf, 2, 3)))
464 int log_debug(const char *, ...)
466 __attribute__ ((format (printf, 1, 2)))
469 void vp_listdebug(VALUE_PAIR *vp);
472 char *auth_name(char *buf, size_t buflen, REQUEST *request, int do_cli);
473 int rad_authenticate (REQUEST *);
474 int rad_postauth(REQUEST *);
477 int radius_exec_program(const char *, REQUEST *, int,
478 char *user_msg, int msg_len,
479 VALUE_PAIR *input_pairs,
480 VALUE_PAIR **output_pairs,
484 int timestr_match(char *, time_t);
487 int paircompare_register(int attr, int otherattr,
488 RAD_COMPARE_FUNC func,
490 void paircompare_unregister(int attr, RAD_COMPARE_FUNC func);
491 int paircompare(REQUEST *req, VALUE_PAIR *request, VALUE_PAIR *check,
493 void pairxlatmove(REQUEST *, VALUE_PAIR **to, VALUE_PAIR **from);
494 int radius_compare_vps(REQUEST *request, VALUE_PAIR *check, VALUE_PAIR *vp);
495 int radius_callback_compare(REQUEST *req, VALUE_PAIR *request,
496 VALUE_PAIR *check, VALUE_PAIR *check_pairs,
497 VALUE_PAIR **reply_pairs);
498 int radius_find_compare(int attribute);
499 VALUE_PAIR *radius_paircreate(REQUEST *request, VALUE_PAIR **vps,
500 int attribute, int type);
501 VALUE_PAIR *radius_pairmake(REQUEST *request, VALUE_PAIR **vps,
502 const char *attribute, const char *value,
506 typedef size_t (*RADIUS_ESCAPE_STRING)(char *out, size_t outlen, const char *in);
508 int radius_xlat(char * out, int outlen, const char *fmt,
509 REQUEST * request, RADIUS_ESCAPE_STRING func);
510 typedef size_t (*RAD_XLAT_FUNC)(void *instance, REQUEST *, char *, char *, size_t, RADIUS_ESCAPE_STRING func);
511 int xlat_register(const char *module, RAD_XLAT_FUNC func,
513 void xlat_unregister(const char *module, RAD_XLAT_FUNC func);
514 void xlat_free(void);
517 extern int thread_pool_init(CONF_SECTION *cs, int spawn_flag);
518 extern int thread_pool_addrequest(REQUEST *, RAD_REQUEST_FUNP);
519 extern pid_t rad_fork(void);
520 extern pid_t rad_waitpid(pid_t pid, int *status);
521 extern int total_active_threads(void);
522 extern void thread_pool_lock(void);
523 extern void thread_pool_unlock(void);
525 #ifndef HAVE_PTHREAD_H
526 #define rad_fork(n) fork()
527 #define rad_waitpid(a,b) waitpid(a,b, 0)
531 /* Define a global config structure */
532 extern struct main_config_t mainconfig;
534 int read_mainconfig(int reload);
535 int free_mainconfig(void);
538 void listen_free(rad_listen_t **head);
539 int listen_init(CONF_SECTION *cs, rad_listen_t **head);
540 rad_listen_t *proxy_new_listener(void);
541 RADCLIENT *client_listener_find(const rad_listen_t *listener,
542 const fr_ipaddr_t *ipaddr);
545 int radius_event_init(CONF_SECTION *cs, int spawn_flag);
546 void radius_event_free(void);
547 int radius_event_process(void);
548 void radius_handle_request(REQUEST *request, RAD_REQUEST_FUNP fun);
549 int received_request(rad_listen_t *listener,
550 RADIUS_PACKET *packet, REQUEST **prequest,
552 REQUEST *received_proxy_response(RADIUS_PACKET *packet);
555 int radius_evaluate_condition(REQUEST *request, int modreturn, int depth,
556 const char **ptr, int evaluate_it, int *presult);
557 int radius_update_attrlist(REQUEST *request, CONF_SECTION *cs,
558 VALUE_PAIR *input_vps, const char *name);
559 void radius_pairmove(REQUEST *request, VALUE_PAIR **to, VALUE_PAIR *from);