2 * This library is free software; you can redistribute it and/or
3 * modify it under the terms of the GNU Lesser General Public
4 * License as published by the Free Software Foundation; either
5 * version 2.1 of the License, or (at your option) any later version.
7 * This library is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
10 * Lesser General Public License for more details.
12 * You should have received a copy of the GNU Lesser General Public
13 * License along with this library; if not, write to the Free Software
14 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 * @brief Structures and prototypes for the radius library.
24 * @copyright 1999-2014 The FreeRADIUS server project
26 RCSIDH(libradius_h, "$Id$")
32 # define XSTRINGIFY(x) #x
33 # define STRINGIFY(x) XSTRINGIFY(x)
37 # define XHEXIFY4(b1,b2,b3,b4) (0x ## b1 ## b2 ## b3 ## b4)
38 # define HEXIFY4(b1,b2,b3,b4) XHEXIFY4(b1, b2, b3, b4)
40 # define XHEXIFY3(b1,b2,b3) (0x ## b1 ## b2 ## b3)
41 # define HEXIFY3(b1,b2,b3) XHEXIFY3(b1, b2, b3)
43 # define XHEXIFY2(b1,b2) (0x ## b1 ## b2)
44 # define HEXIFY2(b1,b2) XHEXIFY2(b1, b2)
46 # define XHEXIFY(b1) (0x ## b1)
47 # define HEXIFY(b1) XHEXIFY(b1)
51 * Let any external program building against the library know what
52 * features the library was built with.
54 #include <freeradius-devel/features.h>
56 #ifdef WITHOUT_VERSION_CHECK
57 # define RADIUSD_MAGIC_NUMBER ((uint64_t) (0xf4ee4ad3f4ee4ad3))
58 # define MAGIC_PREFIX(_x) ((uint8_t) 0x00)
59 # define MAGIC_VERSION(_x) ((uint32_t) 0x00000000)
60 # define MAGIC_COMMIT(_x) ((uint32_t) 0x00000000)
62 # ifdef RADIUSD_VERSION_COMMIT
63 # define RADIUSD_MAGIC_NUMBER ((uint64_t) HEXIFY4(f4, RADIUSD_VERSION, RADIUSD_VERSION_COMMIT, 0))
65 # define RADIUSD_MAGIC_NUMBER ((uint64_t) HEXIFY3(f4, RADIUSD_VERSION, 00000000))
67 # define MAGIC_PREFIX(_x) ((uint8_t) (_x >> 56))
68 # define MAGIC_VERSION(_x) ((uint32_t) ((_x >> 32) & 0x00ffffff))
69 # define MAGIC_COMMIT(_x) ((uint32_t) (_x & 0xffffffff))
73 * Talloc memory allocation is used in preference to malloc throughout
74 * the libraries and server.
79 * Defines signatures for any missing functions.
81 #include <freeradius-devel/missing.h>
84 * Include system headers.
92 #include <freeradius-devel/threads.h>
93 #include <freeradius-devel/radius.h>
94 #include <freeradius-devel/token.h>
95 #include <freeradius-devel/hash.h>
97 #ifdef SIZEOF_UNSIGNED_INT
98 #if SIZEOF_UNSIGNED_INT != 4
99 #error FATAL: sizeof(unsigned int) != 4
104 * Include for modules.
106 #include <freeradius-devel/sha1.h>
107 #include <freeradius-devel/md4.h>
113 #if defined(WITH_VERIFY_PTR)
115 * Requires typeof(), which is in most modern C compilers.
119 #define VERIFY_VP(_x) do { (void) talloc_get_type_abort(_x, VALUE_PAIR); \
121 (void) talloc_get_type_abort(_x->da, DICT_ATTR); \
125 #define FREE_MAGIC (0xF4EEF4EE)
127 #define VERIFY_VP(_x) (void) talloc_get_type_abort(_x, VALUE_PAIR)
128 #define VERIFY_PACKET(_x) (void) talloc_get_type_abort(_x, RADIUS_PACKET)
130 #define VERIFY_VP(_x)
131 #define VERIFY_PACKET(_x)
134 #define AUTH_VECTOR_LEN 16
135 #define CHAP_VALUE_LENGTH 16
136 #define MAX_STRING_LEN 254 /* RFC2138: string 0-253 octets */
137 #define FR_MAX_VENDOR (1 << 24) /* RFC limitations */
140 # define AUTH_HDR_LEN 20
141 # define VENDORPEC_USR 429
142 #define VENDORPEC_LUCENT 4846
143 #define VENDORPEC_STARENT 8164
144 # define DEBUG if (fr_debug_flag && fr_log_fp) fr_printf_log
145 # define debug_pair(vp) do { if (fr_debug_flag && fr_log_fp) { \
146 vp_print(fr_log_fp, vp); \
151 #define TAG_VALID(x) ((x) > 0 && (x) < 0x20)
152 #define TAG_VALID_ZERO(x) ((x) < 0x20)
153 #define TAG_ANY -128 /* minimum signed char */
156 #define PAD(_x, _y) (_y - ((_x) % _y))
158 #if defined(__GNUC__)
159 # define PRINTF_LIKE(n) __attribute__ ((format(printf, n, n+1)))
160 # define NEVER_RETURNS __attribute__ ((noreturn))
161 # define UNUSED __attribute__ ((unused))
162 # define BLANK_FORMAT " " /* GCC_LINT whines about empty formats */
164 # define PRINTF_LIKE(n) /* ignore */
165 # define NEVER_RETURNS /* ignore */
166 # define UNUSED /* ignore */
167 # define BLANK_FORMAT ""
170 typedef struct attr_flags {
171 unsigned int is_unknown : 1; //!< Attribute number or vendor is unknown.
172 unsigned int is_tlv : 1; //!< Is a sub attribute.
173 unsigned int vp_free : 1; //!< Should be freed when VALUE_PAIR is freed.
175 unsigned int has_tag : 1; //!< Tagged attribute.
176 unsigned int array : 1; //!< Pack multiples into 1 attr.
177 unsigned int has_value : 1; //!< Has a value.
178 unsigned int has_value_alias : 1; //!< Has a value alias.
179 unsigned int has_tlv : 1; //!< Has sub attributes.
181 unsigned int extended : 1; //!< Extended attribute.
182 unsigned int long_extended : 1; //!< Long format.
183 unsigned int evs : 1; //!< Extended VSA.
184 unsigned int wimax: 1; //!< WiMAX format=1,1,c.
186 unsigned int concat : 1; //!< concatenate multiple instances
187 unsigned int is_pointer : 1; //!< data is a pointer
189 uint8_t encrypt; //!< Ecryption method.
194 * Values of the encryption flags.
196 #define FLAG_ENCRYPT_NONE (0)
197 #define FLAG_ENCRYPT_USER_PASSWORD (1)
198 #define FLAG_ENCRYPT_TUNNEL_PASSWORD (2)
199 #define FLAG_ENCRYPT_ASCEND_SECRET (3)
201 extern const FR_NAME_NUMBER dict_attr_types[];
202 extern const size_t dict_attr_sizes[PW_TYPE_MAX][2];
204 /** dictionary attribute
207 typedef struct dict_attr {
215 /** value of an enumerated attribute
218 typedef struct dict_value {
225 /** dictionary vendor
228 typedef struct dict_vendor {
229 unsigned int vendorpec;
230 size_t type; //!< Length of type data
231 size_t length; //!< Length of length data
236 /** Union containing all data types supported by the server
238 * This union contains all data types that can be represented with VALUE_PAIRs. It may also be used in other parts
239 * of the server where values of different types need to be stored.
241 * PW_TYPE should be an enumeration of the values in this union.
243 typedef union value_data {
244 char const *strvalue; //!< Pointer to UTF-8 string.
245 uint8_t const *octets; //!< Pointer to binary string.
246 uint32_t integer; //!< 32bit unsigned integer.
247 struct in_addr ipaddr; //!< IPv4 Address.
248 uint32_t date; //!< Date (32bit Unix timestamp).
249 size_t filter[32/sizeof(size_t)]; //!< Ascend binary format a packed data
252 uint8_t ifid[8]; /* struct? */ //!< IPv6 interface ID.
253 struct in6_addr ipv6addr; //!< IPv6 Address.
254 uint8_t ipv6prefix[18]; /* struct? */ //!< IPv6 prefix.
256 uint8_t byte; //!< 8bit unsigned integer.
257 uint16_t ushort; //!< 16bit unsigned integer.
259 uint8_t ether[6]; //!< Ethernet (MAC) address.
261 int32_t sinteger; //!< 32bit signed integer.
262 uint64_t integer64; //!< 64bit unsigned integer.
264 uint8_t ipv4prefix[6]; /* struct? */ //!< IPv4 prefix.
266 uint8_t *tlv; //!< Nested TLV (should go away).
267 void const *ptr; //!< generic pointer.
270 /** The type of value a VALUE_PAIR contains
272 * This is used to add structure to nested VALUE_PAIRs and specifies what type of node it is (set, list, data).
274 * xlat is another type of data node which must first be expanded before use.
276 typedef enum value_type {
277 VT_NONE = 0, //!< VALUE_PAIR has no value.
278 VT_SET, //!< VALUE_PAIR has children.
279 VT_LIST, //!< VALUE_PAIR has multiple values.
280 VT_DATA, //!< VALUE_PAIR has a single value.
281 VT_XLAT //!< valuepair value must be xlat expanded when it's
282 //!< added to VALUE_PAIR tree.
285 /** Stores an attribute, a value and various bits of other data
287 * VALUE_PAIRs are the main data structure used in the server, they specify an attribute, it's children and
290 * They also specify what behaviour should be used when the attribute is merged into a new list/tree.
292 typedef struct value_pair {
293 DICT_ATTR const *da; //!< Dictionary attribute defines the attribute
294 //!< number, vendor and type of the attribute.
296 struct value_pair *next;
298 FR_TOKEN op; //!< Operator to use when moving or inserting
299 //!< valuepair into a list.
301 int8_t tag; //!< Tag value used to group valuepairs.
304 // VALUE_SET *set; //!< Set of child attributes.
305 // VALUE_LIST *list; //!< List of values for
306 //!< multivalued attribute.
307 // value_data_t *data; //!< Value data for this attribute.
309 char const *xlat; //!< Source string for xlat expansion.
312 value_type_t type; //!< Type of pointer in value union.
314 size_t length; //!< of Data field.
318 /** Abstraction to allow iterating over different configurations of VALUE_PAIRs
320 * This allows functions which do not care about the structure of collections of VALUE_PAIRs
321 * to iterate over all members in a collection.
323 * Field within a vp_cursor should not be accessed directly, and vp_cursors should only be
324 * manipulated with the pair* functions.
326 typedef struct vp_cursor {
328 VALUE_PAIR *found; //!< pairfind marker.
329 VALUE_PAIR *last; //!< Temporary only used for fr_cursor_insert
330 VALUE_PAIR *current; //!< The current attribute.
331 VALUE_PAIR *next; //!< Next attribute to process.
334 /** A VALUE_PAIR in string format.
336 * Used to represent pairs in the legacy 'users' file format.
338 typedef struct value_pair_raw {
339 char l_opand[256]; //!< Left hand side of the pair.
340 char r_opand[1024]; //!< Right hand side of the pair.
342 FR_TOKEN quote; //!< Type of quoting around the r_opand.
344 FR_TOKEN op; //!< Operator.
347 #define vp_strvalue data.strvalue
348 #define vp_integer data.integer
349 #define vp_ipaddr data.ipaddr.s_addr
350 #define vp_date data.date
351 #define vp_filter data.filter
352 #define vp_octets data.octets
353 #define vp_ifid data.ifid
354 #define vp_ipv6addr data.ipv6addr
355 #define vp_ipv6prefix data.ipv6prefix
356 #define vp_byte data.byte
357 #define vp_short data.ushort
358 #define vp_ether data.ether
359 #define vp_signed data.sinteger
360 #define vp_integer64 data.integer64
361 #define vp_ipv4prefix data.ipv4prefix
362 #define vp_tlv data.tlv
364 typedef struct fr_ipaddr_t {
365 int af; /* address family */
367 struct in_addr ip4addr;
368 struct in6_addr ip6addr; /* maybe defined in missing.h */
370 uint32_t scope; /* for IPv6 */
374 * vector: Request authenticator from access-request packet
375 * Put in there by rad_decode, and must be put in the
376 * response RADIUS_PACKET as well before calling rad_send
378 * verified: Filled in by rad_decode for accounting-request packets
380 * data,data_len: Used between rad_recv and rad_decode.
382 typedef struct radius_packet {
384 fr_ipaddr_t src_ipaddr;
385 fr_ipaddr_t dst_ipaddr;
390 uint8_t vector[AUTH_VECTOR_LEN];
391 struct timeval timestamp;
405 int fr_check_lib_magic(uint64_t magic);
408 * Printing functions.
410 int fr_utf8_char(uint8_t const *str);
411 size_t fr_print_string(char const *in, size_t inlen,
412 char *out, size_t outlen);
413 size_t vp_prints_value(char *out, size_t outlen, VALUE_PAIR const *vp, int8_t quote);
414 char *vp_aprinttype(TALLOC_CTX *ctx, PW_TYPE type);
415 char *vp_aprint(TALLOC_CTX *ctx, VALUE_PAIR const *vp);
416 size_t vp_prints_value_json(char *out, size_t outlen, VALUE_PAIR const *vp);
417 size_t vp_print_name(char *out, size_t outlen, unsigned int attr, unsigned int vendor);
418 size_t vp_prints(char *out, size_t outlen, VALUE_PAIR const *vp);
419 void vp_print(FILE *, VALUE_PAIR const *);
420 void vp_printlist(FILE *, VALUE_PAIR const *);
421 #define fprint_attr_val vp_print
424 * Dictionary functions.
426 extern const int dict_attr_allowed_chars[256];
427 int str2argv(char *str, char **argv, int max_argc);
428 int dict_str2oid(char const *ptr, unsigned int *pattr,
429 unsigned int *pvendor, int tlv_depth);
430 int dict_addvendor(char const *name, unsigned int value);
431 int dict_addattr(char const *name, int attr, unsigned int vendor, PW_TYPE type, ATTR_FLAGS flags);
432 int dict_addvalue(char const *namestr, char const *attrstr, int value);
433 int dict_init(char const *dir, char const *fn);
434 void dict_free(void);
435 int dict_read(char const *dir, char const *filename);
436 void dict_attr_free(DICT_ATTR const **da);
437 DICT_ATTR const *dict_attr_copy(DICT_ATTR const *da, int vp_free);
438 DICT_ATTR const *dict_attrunknown(unsigned int attr, unsigned int vendor, int vp_free);
439 DICT_ATTR const *dict_attrunknownbyname(char const *attribute, int vp_free);
440 DICT_ATTR const *dict_attrbyvalue(unsigned int attr, unsigned int vendor);
441 DICT_ATTR const *dict_attrbyname(char const *attr);
442 DICT_ATTR const *dict_attrbytype(unsigned int attr, unsigned int vendor,
444 DICT_ATTR const *dict_attrbyparent(DICT_ATTR const *parent, unsigned int attr,
445 unsigned int vendor);
446 int dict_attr_child(DICT_ATTR const *parent,
447 unsigned int *pattr, unsigned int *pvendor);
448 DICT_VALUE *dict_valbyattr(unsigned int attr, unsigned int vendor, int val);
449 DICT_VALUE *dict_valbyname(unsigned int attr, unsigned int vendor, char const *val);
450 char const *dict_valnamebyattr(unsigned int attr, unsigned int vendor, int value);
451 int dict_vendorbyname(char const *name);
452 DICT_VENDOR *dict_vendorbyvalue(int vendor);
454 #if 1 /* FIXME: compat */
455 #define dict_attrget dict_attrbyvalue
456 #define dict_attrfind dict_attrbyname
457 #define dict_valfind dict_valbyname
458 /*#define dict_valget dict_valbyattr almost but not quite*/
463 void fr_md5_calc(uint8_t *, uint8_t const *, unsigned int);
467 void fr_hmac_md5(uint8_t const *text, size_t text_len, uint8_t const *key, size_t key_len, unsigned char *digest);
471 void fr_hmac_sha1(uint8_t const *text, size_t text_len, uint8_t const *key, size_t key_len, uint8_t *digest);
474 int rad_send(RADIUS_PACKET *, RADIUS_PACKET const *, char const *secret);
475 int rad_packet_ok(RADIUS_PACKET *packet, int flags);
476 RADIUS_PACKET *rad_recv(int fd, int flags);
477 ssize_t rad_recv_header(int sockfd, fr_ipaddr_t *src_ipaddr, int *src_port,
479 void rad_recv_discard(int sockfd);
480 int rad_verify(RADIUS_PACKET *packet, RADIUS_PACKET *original,
482 int rad_decode(RADIUS_PACKET *packet, RADIUS_PACKET *original, char const *secret);
483 int rad_encode(RADIUS_PACKET *packet, RADIUS_PACKET const *original,
485 int rad_sign(RADIUS_PACKET *packet, RADIUS_PACKET const *original,
488 int rad_digest_cmp(uint8_t const *a, uint8_t const *b, size_t length);
489 RADIUS_PACKET *rad_alloc(TALLOC_CTX *ctx, int newvector);
490 RADIUS_PACKET *rad_alloc_reply(TALLOC_CTX *ctx, RADIUS_PACKET *);
491 void rad_free(RADIUS_PACKET **);
492 int rad_pwencode(char *encpw, size_t *len, char const *secret,
493 uint8_t const *vector);
494 int rad_pwdecode(char *encpw, size_t len, char const *secret,
495 uint8_t const *vector);
497 #define FR_TUNNEL_PW_ENC_LENGTH(_x) (2 + 1 + _x + PAD(_x + 1, 16))
498 int rad_tunnel_pwencode(char *encpw, size_t *len, char const *secret,
499 uint8_t const *vector);
500 int rad_tunnel_pwdecode(uint8_t *encpw, size_t *len,
501 char const *secret, uint8_t const *vector);
502 int rad_chap_encode(RADIUS_PACKET *packet, uint8_t *output,
503 int id, VALUE_PAIR *password);
505 int rad_attr_ok(RADIUS_PACKET const *packet, RADIUS_PACKET const *original,
507 uint8_t const *data, size_t length);
508 int rad_tlv_ok(uint8_t const *data, size_t length,
509 size_t dv_type, size_t dv_length);
511 ssize_t rad_attr2vp(RADIUS_PACKET *packet, RADIUS_PACKET const *original,
513 uint8_t const *data, size_t length,
516 ssize_t rad_data2vp(unsigned int attribute, unsigned int vendor,
517 uint8_t const *data, size_t length,
520 ssize_t rad_vp2data(uint8_t const **out, VALUE_PAIR const *vp);
522 int rad_vp2extended(RADIUS_PACKET const *packet,
523 RADIUS_PACKET const *original,
524 char const *secret, VALUE_PAIR const **pvp,
525 uint8_t *ptr, size_t room);
526 int rad_vp2wimax(RADIUS_PACKET const *packet,
527 RADIUS_PACKET const *original,
528 char const *secret, VALUE_PAIR const **pvp,
529 uint8_t *ptr, size_t room);
530 int rad_vp2vsa(RADIUS_PACKET const *packet, RADIUS_PACKET const *original,
531 char const *secret, VALUE_PAIR const **pvp, uint8_t *start,
533 int rad_vp2rfc(RADIUS_PACKET const *packet,
534 RADIUS_PACKET const *original,
535 char const *secret, VALUE_PAIR const **pvp,
536 uint8_t *ptr, size_t room);
538 int rad_vp2attr(RADIUS_PACKET const *packet,
539 RADIUS_PACKET const *original, char const *secret,
540 VALUE_PAIR const **pvp, uint8_t *ptr, size_t room);
543 VALUE_PAIR *pairalloc(TALLOC_CTX *ctx, DICT_ATTR const *da);
544 VALUE_PAIR *paircreate(TALLOC_CTX *ctx, unsigned int attr, unsigned int vendor);
545 int pair2unknown(VALUE_PAIR *vp);
546 void pairfree(VALUE_PAIR **);
547 VALUE_PAIR *pairfind(VALUE_PAIR *, unsigned int attr, unsigned int vendor, int8_t tag);
548 VALUE_PAIR *pairfind_da(VALUE_PAIR *, DICT_ATTR const *da, int8_t tag);
550 #define fr_cursor_init(_x, _y) _fr_cursor_init(_x,(VALUE_PAIR const * const *) _y)
551 VALUE_PAIR *_fr_cursor_init(vp_cursor_t *cursor, VALUE_PAIR const * const *node);
552 void fr_cursor_copy(vp_cursor_t *out, vp_cursor_t *in);
553 VALUE_PAIR *fr_cursor_first(vp_cursor_t *cursor);
554 VALUE_PAIR *fr_cursor_next_by_num(vp_cursor_t *cursor, unsigned int attr, unsigned int vendor, int8_t tag);
555 VALUE_PAIR *fr_cursor_next_by_da(vp_cursor_t *cursor, DICT_ATTR const *da, int8_t tag);
556 VALUE_PAIR *fr_cursor_next(vp_cursor_t *cursor);
557 VALUE_PAIR *fr_cursor_current(vp_cursor_t *cursor);
558 void fr_cursor_insert(vp_cursor_t *cursor, VALUE_PAIR *vp);
559 VALUE_PAIR *fr_cursor_remove(vp_cursor_t *cursor);
560 VALUE_PAIR *fr_cursor_replace(vp_cursor_t *cursor, VALUE_PAIR *new);
561 void pairdelete(VALUE_PAIR **, unsigned int attr, unsigned int vendor, int8_t tag);
562 void pairadd(VALUE_PAIR **, VALUE_PAIR *);
563 void pairreplace(VALUE_PAIR **first, VALUE_PAIR *add);
564 int paircmp(VALUE_PAIR *check, VALUE_PAIR *data);
565 int paircmp_op(VALUE_PAIR const *one, FR_TOKEN op, VALUE_PAIR const *two);
566 void pairsort(VALUE_PAIR **vps, bool with_tag);
567 bool pairvalidate(VALUE_PAIR *filter, VALUE_PAIR *list);
568 VALUE_PAIR *paircopyvp(TALLOC_CTX *ctx, VALUE_PAIR const *vp);
569 VALUE_PAIR *paircopyvpdata(TALLOC_CTX *ctx, DICT_ATTR const *da, VALUE_PAIR const *vp);
570 VALUE_PAIR *paircopy(TALLOC_CTX *ctx, VALUE_PAIR *from);
571 VALUE_PAIR *paircopy2(TALLOC_CTX *ctx, VALUE_PAIR *from, unsigned int attr, unsigned int vendor, int8_t tag);
572 void pairmemcpy(VALUE_PAIR *vp, uint8_t const * src, size_t len);
573 void pairmemsteal(VALUE_PAIR *vp, uint8_t const *src);
574 void pairstrsteal(VALUE_PAIR *vp, char const *src);
575 void pairstrcpy(VALUE_PAIR *vp, char const * src);
576 void pairsprintf(VALUE_PAIR *vp, char const * fmt, ...)
578 __attribute__ ((format (printf, 2, 3)))
581 void pairmove(TALLOC_CTX *ctx, VALUE_PAIR **to, VALUE_PAIR **from);
582 void pairfilter(TALLOC_CTX *ctx, VALUE_PAIR **to, VALUE_PAIR **from,
583 unsigned int attr, unsigned int vendor, int8_t tag);
584 bool pairparsevalue(VALUE_PAIR *vp, char const *value);
585 VALUE_PAIR *pairmake(TALLOC_CTX *ctx, VALUE_PAIR **vps, char const *attribute, char const *value, FR_TOKEN op);
586 int pairmark_xlat(VALUE_PAIR *vp, char const *value);
587 FR_TOKEN pairread(char const **ptr, VALUE_PAIR_RAW *raw);
588 FR_TOKEN userparse(TALLOC_CTX *ctx, char const *buffer, VALUE_PAIR **head);
589 VALUE_PAIR *readvp2(TALLOC_CTX *ctx, FILE *fp, bool *pfiledone, char const *errprefix);
595 void fr_strerror_printf(char const *, ...)
597 __attribute__ ((format (printf, 1, 2)))
601 void fr_perror(char const *, ...)
603 __attribute__ ((format (printf, 1, 2)))
606 extern bool fr_assert_cond(char const *file, int line, char const *expr, bool cond);
607 #define fr_assert(_x) fr_assert_cond(__FILE__, __LINE__, #_x, (_x))
609 extern void NEVER_RETURNS _fr_exit(char const *file, int line, int status);
610 #define fr_exit(_x) _fr_exit(__FILE__, __LINE__, (_x))
612 extern void NEVER_RETURNS _fr_exit_now(char const *file, int line, int status);
613 #define fr_exit_now(_x) _fr_exit_now(__FILE__, __LINE__, (_x))
615 extern char const *fr_strerror(void);
616 extern char const *fr_syserror(int num);
617 extern bool fr_dns_lookups; /* do IP -> hostname lookups? */
618 extern bool fr_hostname_lookups; /* do hostname -> IP lookups? */
619 extern int fr_debug_flag; /* 0 = no debugging information */
620 extern int fr_max_attributes; /* per incoming packet */
621 #define FR_MAX_PACKET_CODE (52)
622 extern char const *fr_packet_codes[FR_MAX_PACKET_CODE];
623 extern FILE *fr_log_fp;
624 extern void rad_print_hex(RADIUS_PACKET *packet);
625 void fr_printf_log(char const *, ...)
627 __attribute__ ((format (printf, 1, 2)))
632 * Several handy miscellaneous functions.
634 int fr_set_signal(int sig, sig_t func);
635 TALLOC_CTX *fr_autofree_ctx(void);
636 char const *fr_inet_ntop(int af, void const *src);
637 char const *ip_ntoa(char *, uint32_t);
638 char *ifid_ntoa(char *buffer, size_t size, uint8_t const *ifid);
639 uint8_t *ifid_aton(char const *ifid_str, uint8_t *ifid);
640 int rad_lockfd(int fd, int lock_len);
641 int rad_lockfd_nonblock(int fd, int lock_len);
642 int rad_unlockfd(int fd, int lock_len);
643 size_t fr_bin2hex(char *hex, uint8_t const *bin, size_t inlen);
644 size_t fr_hex2bin(uint8_t *bin, char const *hex, size_t outlen);
645 uint32_t fr_strtoul(char const *value, char **end);
646 bool fr_whitespace_check(char const *value);
647 bool fr_integer_check(char const *value);
649 int fr_ipaddr_cmp(fr_ipaddr_t const *a, fr_ipaddr_t const *b);
651 int ip_ptonx(char const *src, fr_ipaddr_t *dst);
652 int ip_hton(char const *src, int af, fr_ipaddr_t *dst);
653 char const *ip_ntoh(fr_ipaddr_t const *src, char *dst, size_t cnt);
654 struct in_addr fr_ipaddr_mask(struct in_addr const *ipaddr, uint8_t prefix);
655 struct in6_addr fr_ipaddr_mask6(struct in6_addr const *ipaddr, uint8_t prefix);
656 int fr_ipaddr2sockaddr(fr_ipaddr_t const *ipaddr, int port,
657 struct sockaddr_storage *sa, socklen_t *salen);
658 int fr_sockaddr2ipaddr(struct sockaddr_storage const *sa, socklen_t salen,
659 fr_ipaddr_t *ipaddr, int * port);
660 ssize_t fr_utf8_to_ucs2(uint8_t *out, size_t outlen, char const *in, size_t inlen);
661 size_t fr_prints_uint128(char *out, size_t outlen, uint128_t const num);
662 int64_t fr_pow(int32_t base, uint8_t exp);
663 int fr_get_time(char const *date_str, time_t *date);
666 * Define TALLOC_DEBUG to check overflows with talloc.
667 * we can't use valgrind, because the memory used by
668 * talloc is valid memory... just not for us.
671 void fr_talloc_verify_cb(const void *ptr, int depth,
672 int max_depth, int is_ref,
674 #define VERIFY_ALL_TALLOC talloc_report_depth_cb(NULL, 0, -1, fr_talloc_verify_cb, NULL)
676 #define VERIFY_ALL_TALLOC
679 #ifdef WITH_ASCEND_BINARY
681 int ascend_parse_filter(VALUE_PAIR *vp, char const *value);
682 void print_abinary(VALUE_PAIR const *vp, char *buffer, size_t len, int8_t quote);
683 #endif /*WITH_ASCEND_BINARY*/
685 /* random numbers in isaac.c */
686 /* context of random number generator */
687 typedef struct fr_randctx {
689 uint32_t randrsl[256];
690 uint32_t randmem[256];
696 void fr_isaac(fr_randctx *ctx);
697 void fr_randinit(fr_randctx *ctx, int flag);
698 uint32_t fr_rand(void); /* like rand(), but better. */
699 void fr_rand_seed(void const *, size_t ); /* seed the random pool */
702 /* crypt wrapper from crypt.c */
703 int fr_crypt_check(char const *key, char const *salt);
706 typedef struct fr_cbuff fr_cbuff_t;
708 fr_cbuff_t *fr_cbuff_alloc(TALLOC_CTX *ctx, uint32_t size, bool lock);
709 void fr_cbuff_rp_insert(fr_cbuff_t *cbuff, void *obj);
710 void *fr_cbuff_rp_next(fr_cbuff_t *cbuff, TALLOC_CTX *ctx);
713 typedef struct fr_bt_marker fr_bt_marker_t;
715 void fr_debug_break(void);
716 void backtrace_print(fr_cbuff_t *cbuff, void *obj);
717 fr_bt_marker_t *fr_backtrace_attach(fr_cbuff_t **cbuff, TALLOC_CTX *obj);
718 void NEVER_RETURNS fr_fault(int sig);
719 int fr_fault_setup(char const *cmd, char const *program);
722 typedef struct rbtree_t rbtree_t;
723 typedef struct rbnode_t rbnode_t;
725 /* callback order for walking */
733 #define RBTREE_FLAG_NONE (0)
734 #define RBTREE_FLAG_REPLACE (1 << 0)
735 #define RBTREE_FLAG_LOCK (1 << 1)
737 typedef int (*rb_comparator_t)(void const *ctx, void const *data);
738 typedef int (*rb_walker_t)(void *ctx, void *data);
739 typedef void (*rb_free_t)(void *data);
741 rbtree_t *rbtree_create(rb_comparator_t compare, rb_free_t node_free, int flags);
742 void rbtree_free(rbtree_t *tree);
743 bool rbtree_insert(rbtree_t *tree, void *data);
744 rbnode_t *rbtree_insert_node(rbtree_t *tree, void *data);
745 void rbtree_delete(rbtree_t *tree, rbnode_t *z);
746 bool rbtree_deletebydata(rbtree_t *tree, void const *data);
747 rbnode_t *rbtree_find(rbtree_t *tree, void const *data);
748 void *rbtree_finddata(rbtree_t *tree, void const *data);
749 int rbtree_num_elements(rbtree_t *tree);
750 void *rbtree_min(rbtree_t *tree);
751 void *rbtree_node2data(rbtree_t *tree, rbnode_t *node);
754 * The callback should be declared as:
755 * int callback(void *context, void *data)
757 * The "context" is some user-defined context.
758 * The "data" is the pointer to the user data in the node,
759 * NOT the node itself.
761 * It should return 0 if all is OK, and !0 for any error.
762 * The walking will stop on any error.
764 * Except with RBTREE_DELETE_ORDER, where the callback should return <0 for
765 * errors, and may return 1 to delete the current node and halt,
766 * or 2 to delete the current node and continue. This may be
767 * used to batch-delete select nodes from a locked rbtree.
769 int rbtree_walk(rbtree_t *tree, rb_order_t order, rb_walker_t compare, void *context);
772 * Find a matching data item in an rbtree and, if one is found,
773 * perform a callback on it.
775 * The callback is similar to rbtree_walk above, except that a
776 * positive return code from the callback will cause the found node
777 * to be deleted from the tree. If the tree was created with
778 * RBTREE_FLAG_LOCK, then the entire find/callback/delete/rebalance
779 * sequence happens while the lock is held.
781 * Note that the callback MUST NOT alter any of the data which
782 * is used as the rbtree key, nor attempt to alter the rest of
783 * the rbtree in any way.
785 * Returns a pointer to the user data in the found node, or NULL if the
786 * item was not found, or NULL if the item was deleted and the tree was
787 * created with a freeNode garbage collection routine.
789 void *rbtree_callbydata(rbtree_t *tree, void const *data, rb_comparator_t compare, void *context);
794 typedef struct fr_fifo_t fr_fifo_t;
795 typedef void (*fr_fifo_free_t)(void *);
796 fr_fifo_t *fr_fifo_create(int max_entries, fr_fifo_free_t freeNode);
797 void fr_fifo_free(fr_fifo_t *fi);
798 int fr_fifo_push(fr_fifo_t *fi, void *data);
799 void *fr_fifo_pop(fr_fifo_t *fi);
800 void *fr_fifo_peek(fr_fifo_t *fi);
801 int fr_fifo_num_elements(fr_fifo_t *fi);
807 #include <freeradius-devel/packet.h>
810 #include <freeradius-devel/tcp.h>
813 #endif /*LIBRADIUS_H*/