1 /* ldap-int.h - defines & prototypes internal to the LDAP library */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 1998-2007 The OpenLDAP Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted only as authorized by the OpenLDAP
12 * A copy of this license is available in the file LICENSE in the
13 * top-level directory of the distribution or, alternatively, at
14 * <http://www.OpenLDAP.org/license.html>.
16 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
17 * All rights reserved.
24 #define LDAP_THREAD_SAFE 1
27 #include "../liblber/lber-int.h"
30 #include <ldap_pvt_thread.h>
33 #ifdef HAVE_CYRUS_SASL
34 /* the need for this should be removed */
35 #ifdef HAVE_SASL_SASL_H
36 #include <sasl/sasl.h>
41 #define SASL_MAX_BUFF_SIZE 65536
42 #define SASL_MIN_BUFF_SIZE 4096
46 #define TV2MILLISEC(tv) (((tv)->tv_sec * 1000) + ((tv)->tv_usec/1000))
49 * Support needed if the library is running in the kernel
51 #if LDAP_INT_IN_KERNEL
53 * Platform specific function to return a pointer to the
54 * process-specific global options.
56 * This function should perform the following functions:
57 * Allocate and initialize a global options struct on a per process basis
58 * Use callers process identifier to return its global options struct
59 * Note: Deallocate structure when the process exits
61 # define LDAP_INT_GLOBAL_OPT() ldap_int_global_opt()
62 struct ldapoptions *ldap_int_global_opt(void);
64 # define LDAP_INT_GLOBAL_OPT() (&ldap_int_global_options)
67 #define ldap_debug ((LDAP_INT_GLOBAL_OPT())->ldo_debug)
75 #define Debug( level, fmt, arg1, arg2, arg3 ) \
76 do { if ( ldap_debug & level ) \
77 ldap_log_printf( NULL, (level), (fmt), (arg1), (arg2), (arg3) ); \
80 #define LDAP_Debug( subsystem, level, fmt, arg1, arg2, arg3 )\
81 ldap_log_printf( NULL, (level), (fmt), (arg1), (arg2), (arg3) )
85 #define Debug( level, fmt, arg1, arg2, arg3 ) ((void)0)
86 #define LDAP_Debug( subsystem, level, fmt, arg1, arg2, arg3 ) ((void)0)
88 #endif /* LDAP_DEBUG */
90 #define LDAP_DEPRECATED 1
97 #define LDAP_URL_PREFIX "ldap://"
98 #define LDAP_URL_PREFIX_LEN STRLENOF(LDAP_URL_PREFIX)
99 #define LDAPS_URL_PREFIX "ldaps://"
100 #define LDAPS_URL_PREFIX_LEN STRLENOF(LDAPS_URL_PREFIX)
101 #define LDAPI_URL_PREFIX "ldapi://"
102 #define LDAPI_URL_PREFIX_LEN STRLENOF(LDAPI_URL_PREFIX)
103 #ifdef LDAP_CONNECTIONLESS
104 #define LDAPC_URL_PREFIX "cldap://"
105 #define LDAPC_URL_PREFIX_LEN STRLENOF(LDAPC_URL_PREFIX)
107 #define LDAP_URL_URLCOLON "URL:"
108 #define LDAP_URL_URLCOLON_LEN STRLENOF(LDAP_URL_URLCOLON)
110 #define LDAP_REF_STR "Referral:\n"
111 #define LDAP_REF_STR_LEN STRLENOF(LDAP_REF_STR)
112 #define LDAP_LDAP_REF_STR LDAP_URL_PREFIX
113 #define LDAP_LDAP_REF_STR_LEN LDAP_URL_PREFIX_LEN
115 #define LDAP_DEFAULT_REFHOPLIMIT 5
117 #define LDAP_BOOL_REFERRALS 0
118 #define LDAP_BOOL_RESTART 1
119 #define LDAP_BOOL_TLS 3
121 #define LDAP_BOOLEANS unsigned long
122 #define LDAP_BOOL(n) ((LDAP_BOOLEANS)1 << (n))
123 #define LDAP_BOOL_GET(lo, bool) \
124 ((lo)->ldo_booleans & LDAP_BOOL(bool) ? -1 : 0)
125 #define LDAP_BOOL_SET(lo, bool) ((lo)->ldo_booleans |= LDAP_BOOL(bool))
126 #define LDAP_BOOL_CLR(lo, bool) ((lo)->ldo_booleans &= ~LDAP_BOOL(bool))
127 #define LDAP_BOOL_ZERO(lo) ((lo)->ldo_booleans = 0)
130 * This structure represents both ldap messages and ldap responses.
131 * These are really the same, except in the case of search responses,
132 * where a response has multiple messages.
136 ber_int_t lm_msgid; /* the message id */
137 ber_tag_t lm_msgtype; /* the message type */
138 BerElement *lm_ber; /* the ber encoded message contents */
139 struct ldapmsg *lm_chain; /* for search - next msg in the resp */
140 struct ldapmsg *lm_chain_tail;
141 struct ldapmsg *lm_next; /* next response */
142 time_t lm_time; /* used to maintain cache */
152 char *lt_ciphersuite;
157 * structure representing get/set'able options
158 * which have global defaults.
162 #define LDAP_UNINITIALIZED 0x0
163 #define LDAP_INITIALIZED 0x1
164 #define LDAP_VALID_SESSION 0x2
165 #define LDAP_TRASHED_SESSION 0xFF
167 #ifdef LDAP_CONNECTIONLESS
168 #define LDAP_IS_UDP(ld) ((ld)->ld_options.ldo_is_udp)
169 void* ldo_peer; /* struct sockaddr* */
174 /* per API call timeout */
175 struct timeval *ldo_tm_api;
176 struct timeval *ldo_tm_net;
178 ber_int_t ldo_version;
180 ber_int_t ldo_timelimit;
181 ber_int_t ldo_sizelimit;
186 LDAP_TLS_CONNECT_CB *ldo_tls_connect_cb;
187 void* ldo_tls_connect_arg;
188 struct ldaptls ldo_tls_info;
189 #define ldo_tls_certfile ldo_tls_info.lt_certfile
190 #define ldo_tls_keyfile ldo_tls_info.lt_keyfile
191 #define ldo_tls_dhfile ldo_tls_info.lt_dhfile
192 #define ldo_tls_cacertfile ldo_tls_info.lt_cacertfile
193 #define ldo_tls_cacertdir ldo_tls_info.lt_cacertdir
194 #define ldo_tls_ciphersuite ldo_tls_info.lt_ciphersuite
196 int ldo_tls_require_cert;
197 #ifdef HAVE_OPENSSL_CRL
198 int ldo_tls_crlcheck;
202 LDAPURLDesc *ldo_defludp;
205 char* ldo_defbinddn; /* bind dn */
207 #ifdef HAVE_CYRUS_SASL
208 char* ldo_def_sasl_mech; /* SASL Mechanism(s) */
209 char* ldo_def_sasl_realm; /* SASL realm */
210 char* ldo_def_sasl_authcid; /* SASL authentication identity */
211 char* ldo_def_sasl_authzid; /* SASL authorization identity */
213 /* SASL Security Properties */
214 struct sasl_security_properties ldo_sasl_secprops;
217 int ldo_refhoplimit; /* limit on referral nesting */
219 /* LDAPv3 server and client controls */
220 LDAPControl **ldo_sctrls;
221 LDAPControl **ldo_cctrls;
223 /* LDAP rebind callback function */
224 LDAP_REBIND_PROC *ldo_rebind_proc;
225 void *ldo_rebind_params;
226 LDAP_NEXTREF_PROC *ldo_nextref_proc;
227 void *ldo_nextref_params;
228 LDAP_URLLIST_PROC *ldo_urllist_proc;
229 void *ldo_urllist_params;
231 LDAP_BOOLEANS ldo_booleans; /* boolean options */
236 * structure for representing an LDAP server connection
238 typedef struct ldap_conn {
240 #ifdef HAVE_CYRUS_SASL
241 void *lconn_sasl_authctx; /* context for bind */
242 void *lconn_sasl_sockctx; /* for security layer */
245 time_t lconn_lastused; /* time */
246 int lconn_rebind_inprogress; /* set if rebind in progress */
247 char ***lconn_rebind_queue; /* used if rebind in progress */
249 #define LDAP_CONNST_NEEDSOCKET 1
250 #define LDAP_CONNST_CONNECTING 2
251 #define LDAP_CONNST_CONNECTED 3
252 LDAPURLDesc *lconn_server;
253 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND
254 char *lconn_krbinstance;
256 BerElement *lconn_ber; /* ber receiving on this conn. */
258 struct ldap_conn *lconn_next;
263 * structure used to track outstanding requests
265 typedef struct ldapreq {
266 ber_int_t lr_msgid; /* the message id */
267 int lr_status; /* status of request */
268 #define LDAP_REQST_COMPLETED 0
269 #define LDAP_REQST_INPROGRESS 1
270 #define LDAP_REQST_CHASINGREFS 2
271 #define LDAP_REQST_NOTCONNECTED 3
272 #define LDAP_REQST_WRITING 4
273 int lr_refcnt; /* count of references */
274 int lr_outrefcnt; /* count of outstanding referrals */
275 int lr_abandoned; /* the request has been abandoned */
276 ber_int_t lr_origid; /* original request's message id */
277 int lr_parentcnt; /* count of parent requests */
278 ber_tag_t lr_res_msgtype; /* result message type */
279 ber_int_t lr_res_errno; /* result LDAP errno */
280 char *lr_res_error; /* result error string */
281 char *lr_res_matched;/* result matched DN string */
282 BerElement *lr_ber; /* ber encoded request contents */
283 LDAPConn *lr_conn; /* connection used to send request */
284 struct berval lr_dn; /* DN of request, in lr_ber */
285 struct ldapreq *lr_parent; /* request that spawned this referral */
286 struct ldapreq *lr_child; /* first child request */
287 struct ldapreq *lr_refnext; /* next referral spawned */
288 struct ldapreq *lr_prev; /* previous request */
289 struct ldapreq *lr_next; /* next request */
293 * structure for client cache
295 #define LDAP_CACHE_BUCKETS 31 /* cache hash table size */
296 typedef struct ldapcache {
297 LDAPMessage *lc_buckets[LDAP_CACHE_BUCKETS];/* hash table */
298 LDAPMessage *lc_requests; /* unfulfilled reqs */
299 long lc_timeout; /* request timeout */
300 ber_len_t lc_maxmem; /* memory to use */
301 ber_len_t lc_memused; /* memory in use */
302 int lc_enabled; /* enabled? */
303 unsigned long lc_options; /* options */
304 #define LDAP_CACHE_OPT_CACHENOERRS 0x00000001
305 #define LDAP_CACHE_OPT_CACHEALLERRS 0x00000002
309 * structure containing referral request info for rebind procedure
311 typedef struct ldapreqinfo {
318 * structure representing an ldap connection
322 Sockbuf *ld_sb; /* socket descriptor & buffer */
324 struct ldapoptions ld_options;
326 #define ld_valid ld_options.ldo_valid
327 #define ld_debug ld_options.ldo_debug
329 #define ld_deref ld_options.ldo_deref
330 #define ld_timelimit ld_options.ldo_timelimit
331 #define ld_sizelimit ld_options.ldo_sizelimit
333 #define ld_defbinddn ld_options.ldo_defbinddn
334 #define ld_defbase ld_options.ldo_defbase
335 #define ld_defhost ld_options.ldo_defhost
336 #define ld_defport ld_options.ldo_defport
338 #define ld_refhoplimit ld_options.ldo_refhoplimit
340 #define ld_sctrls ld_options.ldo_sctrls
341 #define ld_cctrls ld_options.ldo_cctrls
342 #define ld_rebind_proc ld_options.ldo_rebind_proc
343 #define ld_rebind_params ld_options.ldo_rebind_params
344 #define ld_nextref_proc ld_options.ldo_nextref_proc
345 #define ld_nextref_params ld_options.ldo_nextref_params
346 #define ld_urllist_proc ld_options.ldo_urllist_proc
347 #define ld_urllist_params ld_options.ldo_urllist_params
349 #define ld_version ld_options.ldo_version
351 unsigned short ld_lberoptions;
359 /* do not mess with these */
360 LDAPRequest *ld_requests; /* list of outstanding requests */
361 LDAPMessage *ld_responses; /* list of outstanding responses */
363 #ifdef LDAP_R_COMPILE
364 ldap_pvt_thread_mutex_t ld_conn_mutex;
365 ldap_pvt_thread_mutex_t ld_req_mutex;
366 ldap_pvt_thread_mutex_t ld_res_mutex;
369 ber_len_t ld_nabandoned;
370 ber_int_t *ld_abandoned; /* array of abandoned requests */
372 LDAPCache *ld_cache; /* non-null if cache is initialized */
374 /* do not mess with the rest though */
376 LDAPConn *ld_defconn; /* default connection */
377 LDAPConn *ld_conns; /* list of server connections */
378 void *ld_selectinfo; /* platform specifics for select */
380 #define LDAP_VALID(ld) ( (ld)->ld_valid == LDAP_VALID_SESSION )
381 #define LDAP_TRASHED(ld) ( (ld)->ld_valid == LDAP_TRASHED_SESSION )
382 #define LDAP_TRASH(ld) ( (ld)->ld_valid = LDAP_TRASHED_SESSION )
384 #ifdef LDAP_R_COMPILE
385 LDAP_V ( ldap_pvt_thread_mutex_t ) ldap_int_resolv_mutex;
387 #ifdef HAVE_CYRUS_SASL
388 LDAP_V( ldap_pvt_thread_mutex_t ) ldap_int_sasl_mutex;
392 #ifdef LDAP_R_COMPILE
393 #define LDAP_NEXT_MSGID(ld, id) \
394 ldap_pvt_thread_mutex_lock( &(ld)->ld_req_mutex ); \
395 id = ++(ld)->ld_msgid; \
396 ldap_pvt_thread_mutex_unlock( &(ld)->ld_req_mutex )
398 #define LDAP_NEXT_MSGID(ld, id) id = ++(ld)->ld_msgid
406 ldap_int_bisect_find( ber_int_t *v, ber_len_t n, ber_int_t id, int *idxp );
408 ldap_int_bisect_insert( ber_int_t **vp, ber_len_t *np, int id, int idx );
410 ldap_int_bisect_delete( ber_int_t **vp, ber_len_t *np, int id, int idx );
416 LDAP_V ( struct ldapoptions ) ldap_int_global_options;
418 LDAP_F ( void ) ldap_int_initialize LDAP_P((struct ldapoptions *, int *));
419 LDAP_F ( void ) ldap_int_initialize_global_options LDAP_P((
420 struct ldapoptions *, int *));
423 /* simple macros to realloc for now */
424 #define LDAP_MALLOC(s) (ber_memalloc_x((s),NULL))
425 #define LDAP_CALLOC(n,s) (ber_memcalloc_x((n),(s),NULL))
426 #define LDAP_REALLOC(p,s) (ber_memrealloc_x((p),(s),NULL))
427 #define LDAP_FREE(p) (ber_memfree_x((p),NULL))
428 #define LDAP_VFREE(v) (ber_memvfree_x((void **)(v),NULL))
429 #define LDAP_STRDUP(s) (ber_strdup_x((s),NULL))
430 #define LDAP_STRNDUP(s,l) (ber_strndup_x((s),(l),NULL))
432 #define LDAP_MALLOCX(s,x) (ber_memalloc_x((s),(x)))
433 #define LDAP_CALLOCX(n,s,x) (ber_memcalloc_x((n),(s),(x)))
434 #define LDAP_REALLOCX(p,s,x) (ber_memrealloc_x((p),(s),(x)))
435 #define LDAP_FREEX(p,x) (ber_memfree_x((p),(x)))
436 #define LDAP_VFREEX(v,x) (ber_memvfree_x((void **)(v),(x)))
437 #define LDAP_STRDUPX(s,x) (ber_strdup_x((s),(x)))
438 #define LDAP_STRNDUPX(s,l,x) (ber_strndup_x((s),(l),(x)))
443 LDAP_F (void) ldap_int_error_init( void );
448 LDAP_F (void) ldap_int_utils_init LDAP_P(( void ));
454 LDAP_F (int) ldap_log_printf LDAP_P((LDAP *ld, int level, const char *fmt, ...)) LDAP_GCCATTR((format(printf, 3, 4)));
459 LDAP_F (void) ldap_add_request_to_cache LDAP_P(( LDAP *ld, ber_tag_t msgtype,
460 BerElement *request ));
461 LDAP_F (void) ldap_add_result_to_cache LDAP_P(( LDAP *ld, LDAPMessage *result ));
462 LDAP_F (int) ldap_check_cache LDAP_P(( LDAP *ld, ber_tag_t msgtype, BerElement *request ));
467 LDAP_F (int) ldap_int_put_controls LDAP_P((
469 LDAPControl *const *ctrls,
472 LDAP_F (int) ldap_int_client_controls LDAP_P((
474 LDAPControl **ctrlp ));
479 LDAP_F (int) ldap_int_next_line_tokens LDAP_P(( char **bufp, ber_len_t *blenp, char ***toksp ));
481 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND
485 LDAP_F (char *) ldap_get_kerberosv4_credentials LDAP_P((
487 LDAP_CONST char *who,
488 LDAP_CONST char *service,
491 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND */
497 LDAP_F (int) ldap_open_defconn( LDAP *ld );
498 LDAP_F (int) ldap_int_open_connection( LDAP *ld,
499 LDAPConn *conn, LDAPURLDesc *srvlist, int async );
505 LDAP_V (int) ldap_int_tblsize;
506 LDAP_F (void) ldap_int_ip_init( void );
509 LDAP_F (int) ldap_int_timeval_dup( struct timeval **dest,
510 const struct timeval *tm );
511 LDAP_F (int) ldap_connect_to_host( LDAP *ld, Sockbuf *sb,
512 int proto, const char *host, int port, int async );
514 #if defined(LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND) || \
515 defined(HAVE_TLS) || defined(HAVE_CYRUS_SASL)
516 LDAP_V (char *) ldap_int_hostname;
517 LDAP_F (char *) ldap_host_connected_to( Sockbuf *sb,
521 LDAP_F (int) ldap_int_select( LDAP *ld, struct timeval *timeout );
522 LDAP_F (void *) ldap_new_select_info( void );
523 LDAP_F (void) ldap_free_select_info( void *sip );
524 LDAP_F (void) ldap_mark_select_write( LDAP *ld, Sockbuf *sb );
525 LDAP_F (void) ldap_mark_select_read( LDAP *ld, Sockbuf *sb );
526 LDAP_F (void) ldap_mark_select_clear( LDAP *ld, Sockbuf *sb );
527 LDAP_F (int) ldap_is_read_ready( LDAP *ld, Sockbuf *sb );
528 LDAP_F (int) ldap_is_write_ready( LDAP *ld, Sockbuf *sb );
534 LDAP_F (int) ldap_connect_to_path( LDAP *ld, Sockbuf *sb,
535 const char *path, int async );
536 #endif /* LDAP_PF_LOCAL */
541 LDAP_F (ber_int_t) ldap_send_initial_request( LDAP *ld, ber_tag_t msgtype,
542 const char *dn, BerElement *ber, ber_int_t msgid );
543 LDAP_F (BerElement *) ldap_alloc_ber_with_options( LDAP *ld );
544 LDAP_F (void) ldap_set_ber_options( LDAP *ld, BerElement *ber );
546 LDAP_F (int) ldap_send_server_request( LDAP *ld, BerElement *ber, ber_int_t msgid, LDAPRequest *parentreq, LDAPURLDesc **srvlist, LDAPConn *lc, LDAPreqinfo *bind );
547 LDAP_F (LDAPConn *) ldap_new_connection( LDAP *ld, LDAPURLDesc **srvlist, int use_ldsb, int connect, LDAPreqinfo *bind );
548 LDAP_F (LDAPRequest *) ldap_find_request_by_msgid( LDAP *ld, ber_int_t msgid );
549 LDAP_F (void) ldap_return_request( LDAP *ld, LDAPRequest *lr, int freeit );
550 LDAP_F (void) ldap_free_request( LDAP *ld, LDAPRequest *lr );
551 LDAP_F (void) ldap_free_connection( LDAP *ld, LDAPConn *lc, int force, int unbind );
552 LDAP_F (void) ldap_dump_connection( LDAP *ld, LDAPConn *lconns, int all );
553 LDAP_F (void) ldap_dump_requests_and_responses( LDAP *ld );
554 LDAP_F (int) ldap_chase_referrals( LDAP *ld, LDAPRequest *lr,
555 char **errstrp, int sref, int *hadrefp );
556 LDAP_F (int) ldap_chase_v3referrals( LDAP *ld, LDAPRequest *lr,
557 char **refs, int sref, char **referralsp, int *hadrefp );
558 LDAP_F (int) ldap_append_referral( LDAP *ld, char **referralsp, char *s );
559 LDAP_F (int) ldap_int_flush_request( LDAP *ld, LDAPRequest *lr );
564 LDAP_F (const char *) ldap_int_msgtype2str( ber_tag_t tag );
569 LDAP_F (BerElement *) ldap_build_search_req LDAP_P((
576 LDAPControl **sctrls,
577 LDAPControl **cctrls,
586 LDAP_F (int) ldap_ld_free LDAP_P((
589 LDAPControl **sctrls,
590 LDAPControl **cctrls ));
592 LDAP_F (int) ldap_send_unbind LDAP_P((
595 LDAPControl **sctrls,
596 LDAPControl **cctrls ));
601 LDAP_F (LDAPURLDesc *) ldap_url_dup LDAP_P((
602 LDAPURLDesc *ludp ));
604 LDAP_F (LDAPURLDesc *) ldap_url_duplist LDAP_P((
605 LDAPURLDesc *ludlist ));
607 LDAP_F (int) ldap_url_parselist LDAP_P((
608 LDAPURLDesc **ludlist,
611 LDAP_F (int) ldap_url_parsehosts LDAP_P((
612 LDAPURLDesc **ludlist,
616 LDAP_F (char *) ldap_url_list2hosts LDAP_P((
617 LDAPURLDesc *ludlist ));
623 LDAP_F (int) ldap_int_sasl_init LDAP_P(( void ));
625 LDAP_F (int) ldap_int_sasl_open LDAP_P((
626 LDAP *ld, LDAPConn *conn,
628 LDAP_F (int) ldap_int_sasl_close LDAP_P(( LDAP *ld, LDAPConn *conn ));
630 LDAP_F (int) ldap_int_sasl_external LDAP_P((
631 LDAP *ld, LDAPConn *conn,
632 const char* authid, ber_len_t ssf ));
634 LDAP_F (int) ldap_int_sasl_get_option LDAP_P(( LDAP *ld,
635 int option, void *arg ));
636 LDAP_F (int) ldap_int_sasl_set_option LDAP_P(( LDAP *ld,
637 int option, void *arg ));
638 LDAP_F (int) ldap_int_sasl_config LDAP_P(( struct ldapoptions *lo,
639 int option, const char *arg ));
641 LDAP_F (int) ldap_int_sasl_bind LDAP_P((
645 LDAPControl **, LDAPControl **,
647 /* should be passed in client controls */
649 LDAP_SASL_INTERACT_PROC *interact,
653 LDAP_F (char *) ldap_int_parse_numericoid LDAP_P((
661 LDAP_F (int) ldap_int_tls_config LDAP_P(( LDAP *ld,
662 int option, const char *arg ));
664 LDAP_F (int) ldap_int_tls_start LDAP_P(( LDAP *ld,
665 LDAPConn *conn, LDAPURLDesc *srv ));
667 LDAP_F (void) ldap_int_tls_destroy LDAP_P(( struct ldapoptions *lo ));
672 LDAP_F (char **) ldap_value_dup LDAP_P((
673 char *const *vals ));
677 #endif /* _LDAP_INT_H */