4 Copyright (C) Andrew Tridgell 2004
5 Copyright (C) Stefan Metzmacher 2004
6 Copyright (C) Simo Sorce 2005-2006
8 ** NOTE! The following LGPL license applies to the ldb
9 ** library. This does NOT imply that all of Samba is released
12 This library is free software; you can redistribute it and/or
13 modify it under the terms of the GNU Lesser General Public
14 License as published by the Free Software Foundation; either
15 version 3 of the License, or (at your option) any later version.
17 This library is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 Lesser General Public License for more details.
22 You should have received a copy of the GNU Lesser General Public
23 License along with this library; if not, see <http://www.gnu.org/licenses/>.
29 * Component: ldb header
31 * Description: defines for base ldb API
33 * Author: Andrew Tridgell
34 * Author: Stefan Metzmacher
38 \file ldb.h Samba's ldb database
40 This header file provides the main API for ldb.
45 /*! \cond DOXYGEN_IGNORE */
52 #include "ldb_errors.h"
55 major restrictions as compared to normal LDAP:
57 - each record must have a unique key field
58 - the key must be representable as a NULL terminated C string and may not
59 contain a comma or braces
61 major restrictions as compared to tdb:
63 - no explicit locking calls, but we have transactions when using ldb_tdb
71 An individual lump of data in a result comes in this format. The
72 pointer will usually be to a UTF-8 string if the application is
73 sensible, but it can be to anything you like, including binary data
74 blobs of arbitrary size.
76 \note the data is null (0x00) terminated, but the length does not
77 include the terminator.
80 uint8_t *data; /*!< result data */
81 size_t length; /*!< length of data */
85 /*! \cond DOXYGEN_IGNORE */
86 #ifndef PRINTF_ATTRIBUTE
87 #define PRINTF_ATTRIBUTE(a,b)
91 #if (__GNUC__ >= 3) && (__GNUC_MINOR__ >= 1 )
92 #define _DEPRECATED_ __attribute__ ((deprecated))
99 /* opaque ldb_dn structures, see ldb_dn.c for internals */
100 struct ldb_dn_component;
104 There are a number of flags that are used with ldap_modify() in
105 ldb_message_element.flags fields. The LDB_FLAGS_MOD_ADD,
106 LDB_FLAGS_MOD_DELETE and LDB_FLAGS_MOD_REPLACE flags are used in
107 ldap_modify() calls to specify whether attributes are being added,
108 deleted or modified respectively.
110 #define LDB_FLAG_MOD_MASK 0x3
113 use this to extract the mod type from the operation
115 #define LDB_FLAG_MOD_TYPE(flags) ((flags) & LDB_FLAG_MOD_MASK)
118 Flag value used in ldap_modify() to indicate that attributes are
121 \sa LDB_FLAG_MOD_MASK
123 #define LDB_FLAG_MOD_ADD 1
126 Flag value used in ldap_modify() to indicate that attributes are
129 \sa LDB_FLAG_MOD_MASK
131 #define LDB_FLAG_MOD_REPLACE 2
134 Flag value used in ldap_modify() to indicate that attributes are
137 \sa LDB_FLAG_MOD_MASK
139 #define LDB_FLAG_MOD_DELETE 3
142 flag bits on an element usable only by the internal implementation
144 #define LDB_FLAG_INTERNAL_MASK 0xFFFFFFF0
147 OID for logic AND comaprison.
149 This is the well known object ID for a logical AND comparitor.
151 #define LDB_OID_COMPARATOR_AND "1.2.840.113556.1.4.803"
154 OID for logic OR comparison.
156 This is the well known object ID for a logical OR comparitor.
158 #define LDB_OID_COMPARATOR_OR "1.2.840.113556.1.4.804"
161 results are given back as arrays of ldb_message_element
163 struct ldb_message_element {
166 unsigned int num_values;
167 struct ldb_val *values;
172 a ldb_message represents all or part of a record. It can contain an arbitrary
177 unsigned int num_elements;
178 struct ldb_message_element *elements;
181 enum ldb_changetype {
182 LDB_CHANGETYPE_NONE=0,
184 LDB_CHANGETYPE_DELETE,
185 LDB_CHANGETYPE_MODIFY
191 This structure contains a LDIF record, as returned from ldif_read()
192 and equivalent functions.
195 enum ldb_changetype changetype; /*!< The type of change */
196 struct ldb_message *msg; /*!< The changes */
199 enum ldb_scope {LDB_SCOPE_DEFAULT=-1,
201 LDB_SCOPE_ONELEVEL=1,
202 LDB_SCOPE_SUBTREE=2};
205 struct tevent_context;
207 /* debugging uses one of the following levels */
208 enum ldb_debug_level {LDB_DEBUG_FATAL, LDB_DEBUG_ERROR,
209 LDB_DEBUG_WARNING, LDB_DEBUG_TRACE};
212 the user can optionally supply a debug function. The function
213 is based on the vfprintf() style of interface, but with the addition
216 struct ldb_debug_ops {
217 void (*debug)(void *context, enum ldb_debug_level level,
218 const char *fmt, va_list ap) PRINTF_ATTRIBUTE(3,0);
223 The user can optionally supply a custom utf8 functions,
224 to handle comparisons and casefolding.
226 struct ldb_utf8_fns {
228 char *(*casefold)(void *context, TALLOC_CTX *mem_ctx, const char *s, size_t n);
232 Flag value for database connection mode.
234 If LDB_FLG_RDONLY is used in ldb_connect, then the database will be
235 opened read-only, if possible.
237 #define LDB_FLG_RDONLY 1
240 Flag value for database connection mode.
242 If LDB_FLG_NOSYNC is used in ldb_connect, then the database will be
243 opened without synchronous operations, if possible.
245 #define LDB_FLG_NOSYNC 2
248 Flag value to specify autoreconnect mode.
250 If LDB_FLG_RECONNECT is used in ldb_connect, then the backend will
251 be opened in a way that makes it try to auto reconnect if the
252 connection is dropped (actually make sense only with ldap).
254 #define LDB_FLG_RECONNECT 4
257 Flag to tell backends not to use mmap
259 #define LDB_FLG_NOMMAP 8
262 Flag to tell ldif handlers not to force encoding of binary
265 #define LDB_FLG_SHOW_BINARY 16
268 Flags to enable ldb tracing
270 #define LDB_FLG_ENABLE_TRACING 32
273 structures for ldb_parse_tree handling code
275 enum ldb_parse_op { LDB_OP_AND=1, LDB_OP_OR=2, LDB_OP_NOT=3,
276 LDB_OP_EQUALITY=4, LDB_OP_SUBSTRING=5,
277 LDB_OP_GREATER=6, LDB_OP_LESS=7, LDB_OP_PRESENT=8,
278 LDB_OP_APPROX=9, LDB_OP_EXTENDED=10 };
280 struct ldb_parse_tree {
281 enum ldb_parse_op operation;
284 struct ldb_parse_tree *child;
288 struct ldb_val value;
292 int start_with_wildcard;
293 int end_with_wildcard;
294 struct ldb_val **chunks;
301 struct ldb_val value;
307 struct ldb_val value;
310 unsigned int num_elements;
311 struct ldb_parse_tree **elements;
316 struct ldb_parse_tree *ldb_parse_tree(TALLOC_CTX *mem_ctx, const char *s);
317 char *ldb_filter_from_tree(TALLOC_CTX *mem_ctx, struct ldb_parse_tree *tree);
322 This function encodes a binary blob using the encoding rules in RFC
323 2254 (Section 4). This function also escapes any non-printable
326 \param mem_ctx the memory context to allocate the return string in.
327 \param val the (potentially) binary data to be encoded
329 \return the encoded data as a null terminated string
331 \sa <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>.
333 char *ldb_binary_encode(TALLOC_CTX *mem_ctx, struct ldb_val val);
338 This function encodes a string using the encoding rules in RFC 2254
339 (Section 4). This function also escapes any non-printable
342 \param mem_ctx the memory context to allocate the return string in.
343 \param string the string to be encoded
345 \return the encoded data as a null terminated string
347 \sa <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>.
349 char *ldb_binary_encode_string(TALLOC_CTX *mem_ctx, const char *string);
352 functions for controlling attribute handling
354 typedef int (*ldb_attr_handler_t)(struct ldb_context *, TALLOC_CTX *mem_ctx, const struct ldb_val *, struct ldb_val *);
355 typedef int (*ldb_attr_comparison_t)(struct ldb_context *, TALLOC_CTX *mem_ctx, const struct ldb_val *, const struct ldb_val *);
356 struct ldb_schema_attribute;
357 typedef int (*ldb_attr_operator_t)(struct ldb_context *, enum ldb_parse_op operation,
358 const struct ldb_schema_attribute *a,
359 const struct ldb_val *, const struct ldb_val *, bool *matched);
362 attribute handler structure
364 attr -> The attribute name
365 ldif_read_fn -> convert from ldif to binary format
366 ldif_write_fn -> convert from binary to ldif format
367 canonicalise_fn -> canonicalise a value, for use by indexing and dn construction
368 comparison_fn -> compare two values
371 struct ldb_schema_syntax {
373 ldb_attr_handler_t ldif_read_fn;
374 ldb_attr_handler_t ldif_write_fn;
375 ldb_attr_handler_t canonicalise_fn;
376 ldb_attr_comparison_t comparison_fn;
377 ldb_attr_operator_t operator_fn;
380 struct ldb_schema_attribute {
383 const struct ldb_schema_syntax *syntax;
386 const struct ldb_schema_attribute *ldb_schema_attribute_by_name(struct ldb_context *ldb,
389 struct ldb_dn_extended_syntax {
391 ldb_attr_handler_t read_fn;
392 ldb_attr_handler_t write_clear_fn;
393 ldb_attr_handler_t write_hex_fn;
396 const struct ldb_dn_extended_syntax *ldb_dn_extended_syntax_by_name(struct ldb_context *ldb,
400 The attribute is not returned by default
402 #define LDB_ATTR_FLAG_HIDDEN (1<<0)
404 /* the attribute handler name should be freed when released */
405 #define LDB_ATTR_FLAG_ALLOCATED (1<<1)
408 The attribute is supplied by the application and should not be removed
410 #define LDB_ATTR_FLAG_FIXED (1<<2)
413 when this is set, attempts to create two records which have the same
414 value for this attribute will return LDB_ERR_ENTRY_ALREADY_EXISTS
416 #define LDB_ATTR_FLAG_UNIQUE_INDEX (1<<3)
419 when this is set, attempts to create two attribute values for this attribute on a single DN will return LDB_ERR_CONSTRAINT_VIOLATION
421 #define LDB_ATTR_FLAG_SINGLE_VALUE (1<<4)
424 LDAP attribute syntax for a DN
426 This is the well-known LDAP attribute syntax for a DN.
428 See <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
430 #define LDB_SYNTAX_DN "1.3.6.1.4.1.1466.115.121.1.12"
433 LDAP attribute syntax for a Directory String
435 This is the well-known LDAP attribute syntax for a Directory String.
437 \sa <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
439 #define LDB_SYNTAX_DIRECTORY_STRING "1.3.6.1.4.1.1466.115.121.1.15"
442 LDAP attribute syntax for an integer
444 This is the well-known LDAP attribute syntax for an integer.
446 See <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
448 #define LDB_SYNTAX_INTEGER "1.3.6.1.4.1.1466.115.121.1.27"
451 LDAP attribute syntax for a boolean
453 This is the well-known LDAP attribute syntax for a boolean.
455 See <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
457 #define LDB_SYNTAX_BOOLEAN "1.3.6.1.4.1.1466.115.121.1.7"
460 LDAP attribute syntax for an octet string
462 This is the well-known LDAP attribute syntax for an octet string.
464 See <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
466 #define LDB_SYNTAX_OCTET_STRING "1.3.6.1.4.1.1466.115.121.1.40"
469 LDAP attribute syntax for UTC time.
471 This is the well-known LDAP attribute syntax for a UTC time.
473 See <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
475 #define LDB_SYNTAX_UTC_TIME "1.3.6.1.4.1.1466.115.121.1.53"
477 #define LDB_SYNTAX_OBJECTCLASS "LDB_SYNTAX_OBJECTCLASS"
479 /* sorting helpers */
480 typedef int (*ldb_qsort_cmp_fn_t) (void *v1, void *v2, void *opaque);
482 /* Individual controls */
485 OID for getting and manipulating attributes from the ldb
486 without interception in the operational module.
487 It can be used to access attribute that used to be stored in the sam
488 and that are now calculated.
490 #define LDB_CONTROL_BYPASS_OPERATIONAL_OID "1.3.6.1.4.1.7165.4.3.13"
493 OID for recalculate SD control. This control force the
494 dsdb code to recalculate the SD of the object as if the
495 object was just created.
498 #define LDB_CONTROL_RECALCULATE_SD_OID "1.3.6.1.4.1.7165.4.3.5"
501 REVEAL_INTERNALS is used to reveal internal attributes and DN
502 components which are not normally shown to the user
504 #define LDB_CONTROL_REVEAL_INTERNALS "1.3.6.1.4.1.7165.4.3.6"
507 LDB_CONTROL_AS_SYSTEM is used to skip access checks on operations
508 that are performed by the system, but with a user's credentials, e.g.
511 #define LDB_CONTROL_AS_SYSTEM_OID "1.3.6.1.4.1.7165.4.3.7"
514 LDB_CONTROL_PROVISION_OID is used to skip some constraint checks. It's is
515 mainly thought to be used for the provisioning.
517 #define LDB_CONTROL_PROVISION_OID "1.3.6.1.4.1.7165.4.3.16"
522 OID for the paged results control. This control is included in the
523 searchRequest and searchResultDone messages as part of the controls
524 field of the LDAPMessage, as defined in Section 4.1.12 of
527 \sa <a href="http://www.ietf.org/rfc/rfc2696.txt">RFC 2696</a>.
529 #define LDB_CONTROL_PAGED_RESULTS_OID "1.2.840.113556.1.4.319"
532 OID for specifying the returned elements of the ntSecurityDescriptor
534 \sa <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/ldap/ldap/ldap_server_sd_flags_oid.asp">Microsoft documentation of this OID</a>
536 #define LDB_CONTROL_SD_FLAGS_OID "1.2.840.113556.1.4.801"
539 OID for specifying an advanced scope for the search (one partition)
541 \sa <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/ldap/ldap/ldap_server_domain_scope_oid.asp">Microsoft documentation of this OID</a>
543 #define LDB_CONTROL_DOMAIN_SCOPE_OID "1.2.840.113556.1.4.1339"
546 OID for specifying an advanced scope for a search
548 \sa <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/ldap/ldap/ldap_server_search_options_oid.asp">Microsoft documentation of this OID</a>
550 #define LDB_CONTROL_SEARCH_OPTIONS_OID "1.2.840.113556.1.4.1340"
555 \sa <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/ldap/ldap/ldap_server_notification_oid.asp">Microsoft documentation of this OID</a>
557 #define LDB_CONTROL_NOTIFICATION_OID "1.2.840.113556.1.4.528"
560 OID for performing subtree deletes
562 \sa <a href="http://msdn.microsoft.com/en-us/library/aa366991(v=VS.85).aspx">Microsoft documentation of this OID</a>
564 #define LDB_CONTROL_TREE_DELETE_OID "1.2.840.113556.1.4.805"
567 OID for getting deleted objects
569 \sa <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/ldap/ldap/ldap_server_show_deleted_oid.asp">Microsoft documentation of this OID</a>
571 #define LDB_CONTROL_SHOW_DELETED_OID "1.2.840.113556.1.4.417"
574 OID for getting recycled objects
576 \sa <a href="http://msdn.microsoft.com/en-us/library/dd304621(PROT.13).aspx">Microsoft documentation of this OID</a>
578 #define LDB_CONTROL_SHOW_RECYCLED_OID "1.2.840.113556.1.4.2064"
581 OID for getting deactivated linked attributes
583 \sa <a href="http://msdn.microsoft.com/en-us/library/dd302781(PROT.13).aspx">Microsoft documentation of this OID</a>
585 #define LDB_CONTROL_SHOW_DEACTIVATED_LINK_OID "1.2.840.113556.1.4.2065"
590 \sa <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/ldap/ldap/ldap_server_extended_dn_oid.asp">Microsoft documentation of this OID</a>
592 #define LDB_CONTROL_EXTENDED_DN_OID "1.2.840.113556.1.4.529"
595 OID for LDAP server sort result extension.
597 This control is included in the searchRequest message as part of
598 the controls field of the LDAPMessage, as defined in Section 4.1.12
599 of LDAP v3. The controlType is set to
600 "1.2.840.113556.1.4.473". The criticality MAY be either TRUE or
601 FALSE (where absent is also equivalent to FALSE) at the client's
604 \sa <a href="http://www.ietf.org/rfc/rfc2891.txt">RFC 2891</a>.
606 #define LDB_CONTROL_SERVER_SORT_OID "1.2.840.113556.1.4.473"
609 OID for LDAP server sort result response extension.
611 This control is included in the searchResultDone message as part of
612 the controls field of the LDAPMessage, as defined in Section 4.1.12 of
615 \sa <a href="http://www.ietf.org/rfc/rfc2891.txt">RFC 2891</a>.
617 #define LDB_CONTROL_SORT_RESP_OID "1.2.840.113556.1.4.474"
620 OID for LDAP Attribute Scoped Query extension.
622 This control is included in SearchRequest or SearchResponse
623 messages as part of the controls field of the LDAPMessage.
625 #define LDB_CONTROL_ASQ_OID "1.2.840.113556.1.4.1504"
628 OID for LDAP Directory Sync extension.
630 This control is included in SearchRequest or SearchResponse
631 messages as part of the controls field of the LDAPMessage.
633 #define LDB_CONTROL_DIRSYNC_OID "1.2.840.113556.1.4.841"
637 OID for LDAP Virtual List View Request extension.
639 This control is included in SearchRequest messages
640 as part of the controls field of the LDAPMessage.
642 #define LDB_CONTROL_VLV_REQ_OID "2.16.840.1.113730.3.4.9"
645 OID for LDAP Virtual List View Response extension.
647 This control is included in SearchResponse messages
648 as part of the controls field of the LDAPMessage.
650 #define LDB_CONTROL_VLV_RESP_OID "2.16.840.1.113730.3.4.10"
653 OID to let modifies don't give an error when adding an existing
654 attribute with the same value or deleting an nonexisting one attribute
656 \sa <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/ldap/ldap/ldap_server_permissive_modify_oid.asp">Microsoft documentation of this OID</a>
658 #define LDB_CONTROL_PERMISSIVE_MODIFY_OID "1.2.840.113556.1.4.1413"
661 OID to allow the server to be more 'fast and loose' with the data being added.
663 \sa <a href="http://msdn.microsoft.com/en-us/library/aa366982(v=VS.85).aspx">Microsoft documentation of this OID</a>
665 #define LDB_CONTROL_SERVER_LAZY_COMMIT "1.2.840.113556.1.4.619"
668 Control for RODC join -see [MS-ADTS] section 3.1.1.3.4.1.23
670 \sa <a href="">Microsoft documentation of this OID</a>
672 #define LDB_CONTROL_RODC_DCPROMO_OID "1.2.840.113556.1.4.1341"
674 /* Other standardised controls */
677 OID for the allowing client to request temporary relaxed
678 enforcement of constraints of the x.500 model.
680 Mainly used for the OpenLDAP backend.
682 \sa <a href="http://opends.dev.java.net/public/standards/draft-zeilenga-ldap-managedit.txt">draft managedit</a>.
684 #define LDB_CONTROL_RELAX_OID "1.3.6.1.4.1.4203.666.5.12"
686 /* Extended operations */
689 OID for LDAP Extended Operation SEQUENCE_NUMBER
691 This extended operation is used to retrieve the extended sequence number.
693 #define LDB_EXTENDED_SEQUENCE_NUMBER "1.3.6.1.4.1.7165.4.4.3"
696 OID for LDAP Extended Operation PASSWORD_CHANGE.
698 This Extended operation is used to allow user password changes by the user
701 #define LDB_EXTENDED_PASSWORD_CHANGE_OID "1.3.6.1.4.1.4203.1.11.1"
705 OID for LDAP Extended Operation FAST_BIND
707 This Extended operations is used to perform a fast bind.
709 #define LDB_EXTENDED_FAST_BIND_OID "1.2.840.113556.1.4.1781"
712 OID for LDAP Extended Operation START_TLS.
714 This Extended operation is used to start a new TLS channel on top of a clear
717 #define LDB_EXTENDED_START_TLS_OID "1.3.6.1.4.1.1466.20037"
720 OID for LDAP Extended Operation DYNAMIC_REFRESH.
722 This Extended operation is used to create and maintain objects which exist
723 only a specific time, e.g. when a certain client or a certain person is
724 logged in. Data refreshes have to be periodically sent in a specific
725 interval. Otherwise the entry is going to be removed.
727 #define LDB_EXTENDED_DYNAMIC_OID "1.3.6.1.4.1.1466.101.119.1"
729 struct ldb_sd_flags_control {
731 * request the owner 0x00000001
732 * request the group 0x00000002
733 * request the DACL 0x00000004
734 * request the SACL 0x00000008
736 unsigned secinfo_flags;
740 * DOMAIN_SCOPE 0x00000001
741 * this limits the search to one partition,
742 * and no referrals will be returned.
743 * (Note this doesn't limit the entries by there
744 * objectSid belonging to a domain! Builtin and Foreign Sids
745 * are still returned)
747 * PHANTOM_ROOT 0x00000002
748 * this search on the whole tree on a domain controller
749 * over multiple partitions without referrals.
750 * (This is the default behavior on the Global Catalog Port)
753 #define LDB_SEARCH_OPTION_DOMAIN_SCOPE 0x00000001
754 #define LDB_SEARCH_OPTION_PHANTOM_ROOT 0x00000002
756 struct ldb_search_options_control {
757 unsigned search_options;
760 struct ldb_paged_control {
766 struct ldb_extended_dn_control {
770 struct ldb_server_sort_control {
771 const char *attributeName;
772 const char *orderingRule;
776 struct ldb_sort_resp_control {
781 struct ldb_asq_control {
783 char *source_attribute;
788 struct ldb_dirsync_control {
795 struct ldb_vlv_req_control {
813 struct ldb_vlv_resp_control {
827 enum ldb_request_type {
834 LDB_REQ_REGISTER_CONTROL,
835 LDB_REQ_REGISTER_PARTITION
838 enum ldb_reply_type {
855 struct ldb_extended {
857 void *data; /* NULL or a valid talloc pointer! talloc_get_type() will be used on it */
860 enum ldb_sequence_type {
862 LDB_SEQ_HIGHEST_TIMESTAMP,
866 #define LDB_SEQ_GLOBAL_SEQUENCE 0x01
867 #define LDB_SEQ_TIMESTAMP_SEQUENCE 0x02
869 struct ldb_seqnum_request {
870 enum ldb_sequence_type type;
873 struct ldb_seqnum_result {
880 struct ldb_message **msgs;
881 struct ldb_extended *extended;
882 struct ldb_control **controls;
888 enum ldb_reply_type type;
889 struct ldb_message *message;
890 struct ldb_extended *response;
891 struct ldb_control **controls;
900 enum ldb_scope scope;
901 struct ldb_parse_tree *tree;
902 const char * const *attrs;
903 struct ldb_result *res;
907 const struct ldb_message *message;
911 const struct ldb_message *message;
919 struct ldb_dn *olddn;
920 struct ldb_dn *newdn;
923 struct ldb_register_control {
927 struct ldb_register_partition {
931 typedef int (*ldb_request_callback_t)(struct ldb_request *, struct ldb_reply *);
935 enum ldb_request_type operation;
938 struct ldb_search search;
940 struct ldb_modify mod;
941 struct ldb_delete del;
942 struct ldb_rename rename;
943 struct ldb_extended extended;
944 struct ldb_register_control reg_control;
945 struct ldb_register_partition reg_partition;
948 struct ldb_control **controls;
951 ldb_request_callback_t callback;
955 struct ldb_handle *handle;
958 int ldb_request(struct ldb_context *ldb, struct ldb_request *request);
959 int ldb_request_done(struct ldb_request *req, int status);
960 bool ldb_request_is_done(struct ldb_request *req);
962 int ldb_modules_wait(struct ldb_handle *handle);
963 int ldb_wait(struct ldb_handle *handle, enum ldb_wait_type type);
965 int ldb_set_timeout(struct ldb_context *ldb, struct ldb_request *req, int timeout);
966 int ldb_set_timeout_from_prev_req(struct ldb_context *ldb, struct ldb_request *oldreq, struct ldb_request *newreq);
967 void ldb_set_create_perms(struct ldb_context *ldb, unsigned int perms);
968 void ldb_set_modules_dir(struct ldb_context *ldb, const char *path);
969 struct tevent_context;
970 void ldb_set_event_context(struct ldb_context *ldb, struct tevent_context *ev);
971 struct tevent_context * ldb_get_event_context(struct ldb_context *ldb);
974 Initialise ldbs' global information
976 This is required before any other LDB call
978 \return 0 if initialisation succeeded, -1 otherwise
980 int ldb_global_init(void);
983 Initialise an ldb context
985 This is required before any other LDB call.
987 \param mem_ctx pointer to a talloc memory context. Pass NULL if there is
988 no suitable context available.
990 \return pointer to ldb_context that should be free'd (using talloc_free())
991 at the end of the program.
993 struct ldb_context *ldb_init(TALLOC_CTX *mem_ctx, struct tevent_context *ev_ctx);
996 Connect to a database.
998 This is typically called soon after ldb_init(), and is required prior to
999 any search or database modification operations.
1001 The URL can be one of the following forms:
1007 \param ldb the context associated with the database (from ldb_init())
1008 \param url the URL of the database to connect to, as noted above
1009 \param flags a combination of LDB_FLG_* to modify the connection behaviour
1010 \param options backend specific options - passed uninterpreted to the backend
1012 \return result code (LDB_SUCCESS on success, or a failure code)
1014 \note It is an error to connect to a database that does not exist in readonly mode
1015 (that is, with LDB_FLG_RDONLY). However in read-write mode, the database will be
1016 created if it does not exist.
1019 typedef void (*ldb_async_timeout_fn) (void *);
1020 typedef bool (*ldb_async_callback_fn) (void *);
1021 typedef int (*ldb_async_ctx_add_op_fn)(void *, time_t, void *, ldb_async_timeout_fn, ldb_async_callback_fn);
1022 typedef int (*ldb_async_ctx_wait_op_fn)(void *);
1024 void ldb_async_ctx_set_private_data(struct ldb_context *ldb,
1025 void *private_data);
1026 void ldb_async_ctx_set_add_op(struct ldb_context *ldb,
1027 ldb_async_ctx_add_op_fn add_op);
1028 void ldb_async_ctx_set_wait_op(struct ldb_context *ldb,
1029 ldb_async_ctx_wait_op_fn wait_op);
1031 int ldb_connect(struct ldb_context *ldb, const char *url, unsigned int flags, const char *options[]);
1034 return an automatic basedn from the rootDomainNamingContext of the rootDSE
1035 This value have been set in an opaque pointer at connection time
1037 struct ldb_dn *ldb_get_root_basedn(struct ldb_context *ldb);
1040 return an automatic basedn from the configurationNamingContext of the rootDSE
1041 This value have been set in an opaque pointer at connection time
1043 struct ldb_dn *ldb_get_config_basedn(struct ldb_context *ldb);
1046 return an automatic basedn from the schemaNamingContext of the rootDSE
1047 This value have been set in an opaque pointer at connection time
1049 struct ldb_dn *ldb_get_schema_basedn(struct ldb_context *ldb);
1052 return an automatic baseDN from the defaultNamingContext of the rootDSE
1053 This value have been set in an opaque pointer at connection time
1055 struct ldb_dn *ldb_get_default_basedn(struct ldb_context *ldb);
1058 The default async search callback function
1060 \param req the request we are callback of
1061 \param ares a single reply from the async core
1063 \return result code (LDB_SUCCESS on success, or a failure code)
1065 \note this function expects req->context to always be an struct ldb_result pointer
1066 AND a talloc context, this function will steal on the context each message
1067 from the ares reply passed on by the async core so that in the end all the
1068 messages will be in the context (ldb_result) memory tree.
1069 Freeing the passed context (ldb_result tree) will free all the resources
1070 (the request need to be freed separately and the result doe not depend on the
1071 request that can be freed as sson as the search request is finished)
1074 int ldb_search_default_callback(struct ldb_request *req, struct ldb_reply *ares);
1077 The default async extended operation callback function
1079 \param req the request we are callback of
1080 \param ares a single reply from the async core
1082 \return result code (LDB_SUCCESS on success, or a failure code)
1084 int ldb_op_default_callback(struct ldb_request *req, struct ldb_reply *ares);
1086 int ldb_modify_default_callback(struct ldb_request *req, struct ldb_reply *ares);
1089 Helper function to build a search request
1091 \param ret_req the request structure is returned here (talloced on mem_ctx)
1092 \param ldb the context associated with the database (from ldb_init())
1093 \param mem_ctx a talloc memory context (used as parent of ret_req)
1094 \param base the Base Distinguished Name for the query (use ldb_dn_new() for an empty one)
1095 \param scope the search scope for the query
1096 \param expression the search expression to use for this query
1097 \param attrs the search attributes for the query (pass NULL if none required)
1098 \param controls an array of controls
1099 \param context the callback function context
1100 \param the callback function to handle the async replies
1101 \param the parent request if any
1103 \return result code (LDB_SUCCESS on success, or a failure code)
1106 int ldb_build_search_req(struct ldb_request **ret_req,
1107 struct ldb_context *ldb,
1108 TALLOC_CTX *mem_ctx,
1109 struct ldb_dn *base,
1110 enum ldb_scope scope,
1111 const char *expression,
1112 const char * const *attrs,
1113 struct ldb_control **controls,
1115 ldb_request_callback_t callback,
1116 struct ldb_request *parent);
1118 int ldb_build_search_req_ex(struct ldb_request **ret_req,
1119 struct ldb_context *ldb,
1120 TALLOC_CTX *mem_ctx,
1121 struct ldb_dn *base,
1122 enum ldb_scope scope,
1123 struct ldb_parse_tree *tree,
1124 const char * const *attrs,
1125 struct ldb_control **controls,
1127 ldb_request_callback_t callback,
1128 struct ldb_request *parent);
1131 Helper function to build an add request
1133 \param ret_req the request structure is returned here (talloced on mem_ctx)
1134 \param ldb the context associated with the database (from ldb_init())
1135 \param mem_ctx a talloc memory context (used as parent of ret_req)
1136 \param message contains the entry to be added
1137 \param controls an array of controls
1138 \param context the callback function context
1139 \param the callback function to handle the async replies
1140 \param the parent request if any
1142 \return result code (LDB_SUCCESS on success, or a failure code)
1145 int ldb_build_add_req(struct ldb_request **ret_req,
1146 struct ldb_context *ldb,
1147 TALLOC_CTX *mem_ctx,
1148 const struct ldb_message *message,
1149 struct ldb_control **controls,
1151 ldb_request_callback_t callback,
1152 struct ldb_request *parent);
1155 Helper function to build a modify request
1157 \param ret_req the request structure is returned here (talloced on mem_ctx)
1158 \param ldb the context associated with the database (from ldb_init())
1159 \param mem_ctx a talloc memory context (used as parent of ret_req)
1160 \param message contains the entry to be modified
1161 \param controls an array of controls
1162 \param context the callback function context
1163 \param the callback function to handle the async replies
1164 \param the parent request if any
1166 \return result code (LDB_SUCCESS on success, or a failure code)
1169 int ldb_build_mod_req(struct ldb_request **ret_req,
1170 struct ldb_context *ldb,
1171 TALLOC_CTX *mem_ctx,
1172 const struct ldb_message *message,
1173 struct ldb_control **controls,
1175 ldb_request_callback_t callback,
1176 struct ldb_request *parent);
1179 Helper function to build a delete request
1181 \param ret_req the request structure is returned here (talloced on mem_ctx)
1182 \param ldb the context associated with the database (from ldb_init())
1183 \param mem_ctx a talloc memory context (used as parent of ret_req)
1184 \param dn the DN to be deleted
1185 \param controls an array of controls
1186 \param context the callback function context
1187 \param the callback function to handle the async replies
1188 \param the parent request if any
1190 \return result code (LDB_SUCCESS on success, or a failure code)
1193 int ldb_build_del_req(struct ldb_request **ret_req,
1194 struct ldb_context *ldb,
1195 TALLOC_CTX *mem_ctx,
1197 struct ldb_control **controls,
1199 ldb_request_callback_t callback,
1200 struct ldb_request *parent);
1203 Helper function to build a rename request
1205 \param ret_req the request structure is returned here (talloced on mem_ctx)
1206 \param ldb the context associated with the database (from ldb_init())
1207 \param mem_ctx a talloc memory context (used as parent of ret_req)
1208 \param olddn the old DN
1209 \param newdn the new DN
1210 \param controls an array of controls
1211 \param context the callback function context
1212 \param the callback function to handle the async replies
1213 \param the parent request if any
1215 \return result code (LDB_SUCCESS on success, or a failure code)
1218 int ldb_build_rename_req(struct ldb_request **ret_req,
1219 struct ldb_context *ldb,
1220 TALLOC_CTX *mem_ctx,
1221 struct ldb_dn *olddn,
1222 struct ldb_dn *newdn,
1223 struct ldb_control **controls,
1225 ldb_request_callback_t callback,
1226 struct ldb_request *parent);
1229 Add a ldb_control to a ldb_request
1231 \param req the request struct where to add the control
1232 \param oid the object identifier of the control as string
1233 \param critical whether the control should be critical or not
1234 \param data a talloc pointer to the control specific data
1236 \return result code (LDB_SUCCESS on success, or a failure code)
1238 int ldb_request_add_control(struct ldb_request *req, const char *oid, bool critical, void *data);
1241 replace a ldb_control in a ldb_request
1243 \param req the request struct where to add the control
1244 \param oid the object identifier of the control as string
1245 \param critical whether the control should be critical or not
1246 \param data a talloc pointer to the control specific data
1248 \return result code (LDB_SUCCESS on success, or a failure code)
1250 int ldb_request_replace_control(struct ldb_request *req, const char *oid, bool critical, void *data);
1253 check if a control with the specified "oid" exist and return it
1254 \param req the request struct where to add the control
1255 \param oid the object identifier of the control as string
1257 \return the control, NULL if not found
1259 struct ldb_control *ldb_request_get_control(struct ldb_request *req, const char *oid);
1262 check if a control with the specified "oid" exist and return it
1263 \param rep the reply struct where to add the control
1264 \param oid the object identifier of the control as string
1266 \return the control, NULL if not found
1268 struct ldb_control *ldb_reply_get_control(struct ldb_reply *rep, const char *oid);
1273 This function searches the database, and returns
1274 records that match an LDAP-like search expression
1276 \param ldb the context associated with the database (from ldb_init())
1277 \param mem_ctx the memory context to use for the request and the results
1278 \param result the return result
1279 \param base the Base Distinguished Name for the query (use ldb_dn_new() for an empty one)
1280 \param scope the search scope for the query
1281 \param attrs the search attributes for the query (pass NULL if none required)
1282 \param exp_fmt the search expression to use for this query (printf like)
1284 \return result code (LDB_SUCCESS on success, or a failure code)
1286 \note use talloc_free() to free the ldb_result returned
1288 int ldb_search(struct ldb_context *ldb, TALLOC_CTX *mem_ctx,
1289 struct ldb_result **result, struct ldb_dn *base,
1290 enum ldb_scope scope, const char * const *attrs,
1291 const char *exp_fmt, ...) PRINTF_ATTRIBUTE(7,8);
1294 Add a record to the database.
1296 This function adds a record to the database. This function will fail
1297 if a record with the specified class and key already exists in the
1300 \param ldb the context associated with the database (from
1302 \param message the message containing the record to add.
1304 \return result code (LDB_SUCCESS if the record was added, otherwise
1307 int ldb_add(struct ldb_context *ldb,
1308 const struct ldb_message *message);
1311 Modify the specified attributes of a record
1313 This function modifies a record that is in the database.
1315 \param ldb the context associated with the database (from
1317 \param message the message containing the changes required.
1319 \return result code (LDB_SUCCESS if the record was modified as
1320 requested, otherwise a failure code)
1322 int ldb_modify(struct ldb_context *ldb,
1323 const struct ldb_message *message);
1326 Rename a record in the database
1328 This function renames a record in the database.
1330 \param ldb the context associated with the database (from
1332 \param olddn the DN for the record to be renamed.
1333 \param newdn the new DN
1335 \return result code (LDB_SUCCESS if the record was renamed as
1336 requested, otherwise a failure code)
1338 int ldb_rename(struct ldb_context *ldb, struct ldb_dn *olddn, struct ldb_dn *newdn);
1341 Delete a record from the database
1343 This function deletes a record from the database.
1345 \param ldb the context associated with the database (from
1347 \param dn the DN for the record to be deleted.
1349 \return result code (LDB_SUCCESS if the record was deleted,
1350 otherwise a failure code)
1352 int ldb_delete(struct ldb_context *ldb, struct ldb_dn *dn);
1355 The default async extended operation callback function
1357 \param req the request we are callback of
1358 \param ares a single reply from the async core
1360 \return result code (LDB_SUCCESS on success, or a failure code)
1362 \note this function expects req->context to always be an struct ldb_result pointer
1363 AND a talloc context, this function will steal on the context each message
1364 from the ares reply passed on by the async core so that in the end all the
1365 messages will be in the context (ldb_result) memory tree.
1366 Freeing the passed context (ldb_result tree) will free all the resources
1367 (the request need to be freed separately and the result doe not depend on the
1368 request that can be freed as sson as the search request is finished)
1371 int ldb_extended_default_callback(struct ldb_request *req, struct ldb_reply *ares);
1375 Helper function to build a extended request
1377 \param ret_req the request structure is returned here (talloced on mem_ctx)
1378 \param ldb the context associated with the database (from ldb_init())
1379 \param mem_ctx a talloc memory context (used as parent of ret_req)
1380 \param oid the OID of the extended operation.
1381 \param data a void pointer a the extended operation specific parameters,
1382 it needs to be NULL or a valid talloc pointer! talloc_get_type() will be used on it
1383 \param controls an array of controls
1384 \param context the callback function context
1385 \param the callback function to handle the async replies
1386 \param the parent request if any
1388 \return result code (LDB_SUCCESS on success, or a failure code)
1390 int ldb_build_extended_req(struct ldb_request **ret_req,
1391 struct ldb_context *ldb,
1392 TALLOC_CTX *mem_ctx,
1394 void *data,/* NULL or a valid talloc pointer! talloc_get_type() will be used on it */
1395 struct ldb_control **controls,
1397 ldb_request_callback_t callback,
1398 struct ldb_request *parent);
1401 call an extended operation
1403 This function deletes a record from the database.
1405 \param ldb the context associated with the database (from ldb_init())
1406 \param oid the OID of the extended operation.
1407 \param data a void pointer a the extended operation specific parameters,
1408 it needs to be NULL or a valid talloc pointer! talloc_get_type() will be used on it
1409 \param res the result of the extended operation
1411 \return result code (LDB_SUCCESS if the extended operation returned fine,
1412 otherwise a failure code)
1414 int ldb_extended(struct ldb_context *ldb,
1416 void *data,/* NULL or a valid talloc pointer! talloc_get_type() will be used on it */
1417 struct ldb_result **res);
1420 Obtain current/next database sequence number
1422 int ldb_sequence_number(struct ldb_context *ldb, enum ldb_sequence_type type, uint64_t *seq_num);
1427 int ldb_transaction_start(struct ldb_context *ldb);
1430 first phase of two phase commit
1432 int ldb_transaction_prepare_commit(struct ldb_context *ldb);
1435 commit a transaction
1437 int ldb_transaction_commit(struct ldb_context *ldb);
1440 cancel a transaction
1442 int ldb_transaction_cancel(struct ldb_context *ldb);
1445 cancel a transaction with no error if no transaction is pending
1446 used when we fork() to clear any parent transactions
1448 int ldb_transaction_cancel_noerr(struct ldb_context *ldb);
1452 return extended error information from the last call
1454 const char *ldb_errstring(struct ldb_context *ldb);
1457 return a string explaining what a ldb error constant meancs
1459 const char *ldb_strerror(int ldb_err);
1462 setup the default utf8 functions
1463 FIXME: these functions do not yet handle utf8
1465 void ldb_set_utf8_default(struct ldb_context *ldb);
1470 \param ldb the ldb context
1471 \param mem_ctx the memory context to allocate the result string
1473 \param s the string that is to be folded
1474 \return a copy of the string, converted to upper case
1476 \note The default function is not yet UTF8 aware. Provide your own
1477 set of functions through ldb_set_utf8_fns()
1479 char *ldb_casefold(struct ldb_context *ldb, TALLOC_CTX *mem_ctx, const char *s, size_t n);
1482 Check the attribute name is valid according to rfc2251
1483 \param s the string to check
1485 \return 1 if the name is ok
1487 int ldb_valid_attr_name(const char *s);
1490 ldif manipulation functions
1494 Write an LDIF message
1496 This function writes an LDIF message using a caller supplied write
1499 \param ldb the ldb context (from ldb_init())
1500 \param fprintf_fn a function pointer for the write function. This must take
1501 a private data pointer, followed by a format string, and then a variable argument
1503 \param private_data pointer that will be provided back to the write
1504 function. This is useful for maintaining state or context.
1505 \param ldif the message to write out
1507 \return the total number of bytes written, or an error code as returned
1508 from the write function.
1510 \sa ldb_ldif_write_file for a more convenient way to write to a
1513 \sa ldb_ldif_read for the reader equivalent to this function.
1515 int ldb_ldif_write(struct ldb_context *ldb,
1516 int (*fprintf_fn)(void *, const char *, ...) PRINTF_ATTRIBUTE(2,3),
1518 const struct ldb_ldif *ldif);
1521 Clean up an LDIF message
1523 This function cleans up a LDIF message read using ldb_ldif_read()
1524 or related functions (such as ldb_ldif_read_string() and
1525 ldb_ldif_read_file().
1527 \param ldb the ldb context (from ldb_init())
1528 \param msg the message to clean up and free
1531 void ldb_ldif_read_free(struct ldb_context *ldb, struct ldb_ldif *msg);
1534 Read an LDIF message
1536 This function creates an LDIF message using a caller supplied read
1539 \param ldb the ldb context (from ldb_init())
1540 \param fgetc_fn a function pointer for the read function. This must
1541 take a private data pointer, and must return a pointer to an
1542 integer corresponding to the next byte read (or EOF if there is no
1543 more data to be read).
1544 \param private_data pointer that will be provided back to the read
1545 function. This is udeful for maintaining state or context.
1547 \return the LDIF message that has been read in
1549 \note You must free the LDIF message when no longer required, using
1550 ldb_ldif_read_free().
1552 \sa ldb_ldif_read_file for a more convenient way to read from a
1555 \sa ldb_ldif_read_string for a more convenient way to read from a
1556 string (char array).
1558 \sa ldb_ldif_write for the writer equivalent to this function.
1560 struct ldb_ldif *ldb_ldif_read(struct ldb_context *ldb,
1561 int (*fgetc_fn)(void *), void *private_data);
1564 Read an LDIF message from a file
1566 This function reads the next LDIF message from the contents of a
1567 file stream. If you want to get all of the LDIF messages, you will
1568 need to repeatedly call this function, until it returns NULL.
1570 \param ldb the ldb context (from ldb_init())
1571 \param f the file stream to read from (typically from fdopen())
1573 \sa ldb_ldif_read_string for an equivalent function that will read
1574 from a string (char array).
1576 \sa ldb_ldif_write_file for the writer equivalent to this function.
1579 struct ldb_ldif *ldb_ldif_read_file(struct ldb_context *ldb, FILE *f);
1582 Read an LDIF message from a string
1584 This function reads the next LDIF message from the contents of a char
1585 array. If you want to get all of the LDIF messages, you will need
1586 to repeatedly call this function, until it returns NULL.
1588 \param ldb the ldb context (from ldb_init())
1589 \param s pointer to the char array to read from
1591 \sa ldb_ldif_read_file for an equivalent function that will read
1594 \sa ldb_ldif_write for a more general (arbitrary read function)
1595 version of this function.
1597 struct ldb_ldif *ldb_ldif_read_string(struct ldb_context *ldb, const char **s);
1600 Write an LDIF message to a file
1602 \param ldb the ldb context (from ldb_init())
1603 \param f the file stream to write to (typically from fdopen())
1604 \param msg the message to write out
1606 \return the total number of bytes written, or a negative error code
1608 \sa ldb_ldif_read_file for the reader equivalent to this function.
1610 int ldb_ldif_write_file(struct ldb_context *ldb, FILE *f, const struct ldb_ldif *msg);
1613 Write an LDIF message to a string
1615 \param ldb the ldb context (from ldb_init())
1616 \param mem_ctx the talloc context on which to attach the string)
1617 \param msg the message to write out
1619 \return the string containing the LDIF, or NULL on error
1621 \sa ldb_ldif_read_string for the reader equivalent to this function.
1623 char * ldb_ldif_write_string(struct ldb_context *ldb, TALLOC_CTX *mem_ctx,
1624 const struct ldb_ldif *msg);
1628 Produce a string form of an ldb message
1630 convenient function to turn a ldb_message into a string. Useful for
1633 char *ldb_ldif_message_string(struct ldb_context *ldb, TALLOC_CTX *mem_ctx,
1634 enum ldb_changetype changetype,
1635 const struct ldb_message *msg);
1639 Base64 encode a buffer
1641 \param mem_ctx the memory context that the result is allocated
1643 \param buf pointer to the array that is to be encoded
1644 \param len the number of elements in the array to be encoded
1646 \return pointer to an array containing the encoded data
1648 \note The caller is responsible for freeing the result
1650 char *ldb_base64_encode(TALLOC_CTX *mem_ctx, const char *buf, int len);
1653 Base64 decode a buffer
1655 This function decodes a base64 encoded string in place.
1657 \param s the string to decode.
1659 \return the length of the returned (decoded) string.
1661 \note the string is null terminated, but the null terminator is not
1662 included in the length.
1664 int ldb_base64_decode(char *s);
1666 /* The following definitions come from lib/ldb/common/ldb_dn.c */
1669 Get the linear form of a DN (without any extended components)
1671 \param dn The DN to linearize
1674 const char *ldb_dn_get_linearized(struct ldb_dn *dn);
1677 Allocate a copy of the linear form of a DN (without any extended components) onto the supplied memory context
1679 \param dn The DN to linearize
1680 \param mem_ctx TALLOC context to return result on
1683 char *ldb_dn_alloc_linearized(TALLOC_CTX *mem_ctx, struct ldb_dn *dn);
1686 Get the linear form of a DN (with any extended components)
1688 \param mem_ctx TALLOC context to return result on
1689 \param dn The DN to linearize
1690 \param mode Style of extended DN to return (0 is HEX representation of binary form, 1 is a string form)
1692 char *ldb_dn_get_extended_linearized(TALLOC_CTX *mem_ctx, struct ldb_dn *dn, int mode);
1693 const struct ldb_val *ldb_dn_get_extended_component(struct ldb_dn *dn, const char *name);
1694 int ldb_dn_set_extended_component(struct ldb_dn *dn, const char *name, const struct ldb_val *val);
1695 void ldb_dn_extended_filter(struct ldb_dn *dn, const char * const *accept);
1696 void ldb_dn_remove_extended_components(struct ldb_dn *dn);
1697 bool ldb_dn_has_extended(struct ldb_dn *dn);
1699 int ldb_dn_extended_add_syntax(struct ldb_context *ldb,
1701 const struct ldb_dn_extended_syntax *syntax);
1704 Allocate a new DN from a string
1706 \param mem_ctx TALLOC context to return resulting ldb_dn structure on
1707 \param dn The new DN
1709 \note The DN will not be parsed at this time. Use ldb_dn_validate to tell if the DN is syntacticly correct
1712 struct ldb_dn *ldb_dn_new(TALLOC_CTX *mem_ctx, struct ldb_context *ldb, const char *dn);
1714 Allocate a new DN from a printf style format string and arguments
1716 \param mem_ctx TALLOC context to return resulting ldb_dn structure on
1717 \param new_fms The new DN as a format string (plus arguments)
1719 \note The DN will not be parsed at this time. Use ldb_dn_validate to tell if the DN is syntacticly correct
1722 struct ldb_dn *ldb_dn_new_fmt(TALLOC_CTX *mem_ctx, struct ldb_context *ldb, const char *new_fmt, ...) PRINTF_ATTRIBUTE(3,4);
1724 Allocate a new DN from a struct ldb_val (useful to avoid buffer overrun)
1726 \param mem_ctx TALLOC context to return resulting ldb_dn structure on
1727 \param dn The new DN
1729 \note The DN will not be parsed at this time. Use ldb_dn_validate to tell if the DN is syntacticly correct
1732 struct ldb_dn *ldb_dn_from_ldb_val(TALLOC_CTX *mem_ctx, struct ldb_context *ldb, const struct ldb_val *strdn);
1735 Determine if this DN is syntactically valid
1737 \param dn The DN to validate
1740 bool ldb_dn_validate(struct ldb_dn *dn);
1742 char *ldb_dn_escape_value(TALLOC_CTX *mem_ctx, struct ldb_val value);
1743 const char *ldb_dn_get_casefold(struct ldb_dn *dn);
1744 char *ldb_dn_alloc_casefold(TALLOC_CTX *mem_ctx, struct ldb_dn *dn);
1746 int ldb_dn_compare_base(struct ldb_dn *base, struct ldb_dn *dn);
1747 int ldb_dn_compare(struct ldb_dn *edn0, struct ldb_dn *edn1);
1749 bool ldb_dn_add_base(struct ldb_dn *dn, struct ldb_dn *base);
1750 bool ldb_dn_add_base_fmt(struct ldb_dn *dn, const char *base_fmt, ...) PRINTF_ATTRIBUTE(2,3);
1751 bool ldb_dn_add_child(struct ldb_dn *dn, struct ldb_dn *child);
1752 bool ldb_dn_add_child_fmt(struct ldb_dn *dn, const char *child_fmt, ...) PRINTF_ATTRIBUTE(2,3);
1753 bool ldb_dn_remove_base_components(struct ldb_dn *dn, unsigned int num);
1754 bool ldb_dn_remove_child_components(struct ldb_dn *dn, unsigned int num);
1756 struct ldb_dn *ldb_dn_copy(TALLOC_CTX *mem_ctx, struct ldb_dn *dn);
1757 struct ldb_dn *ldb_dn_get_parent(TALLOC_CTX *mem_ctx, struct ldb_dn *dn);
1758 char *ldb_dn_canonical_string(TALLOC_CTX *mem_ctx, struct ldb_dn *dn);
1759 char *ldb_dn_canonical_ex_string(TALLOC_CTX *mem_ctx, struct ldb_dn *dn);
1760 int ldb_dn_get_comp_num(struct ldb_dn *dn);
1761 const char *ldb_dn_get_component_name(struct ldb_dn *dn, unsigned int num);
1762 const struct ldb_val *ldb_dn_get_component_val(struct ldb_dn *dn, unsigned int num);
1763 const char *ldb_dn_get_rdn_name(struct ldb_dn *dn);
1764 const struct ldb_val *ldb_dn_get_rdn_val(struct ldb_dn *dn);
1765 int ldb_dn_set_component(struct ldb_dn *dn, int num, const char *name, const struct ldb_val val);
1767 bool ldb_dn_is_valid(struct ldb_dn *dn);
1768 bool ldb_dn_is_special(struct ldb_dn *dn);
1769 bool ldb_dn_check_special(struct ldb_dn *dn, const char *check);
1770 bool ldb_dn_is_null(struct ldb_dn *dn);
1771 int ldb_dn_update_components(struct ldb_dn *dn, const struct ldb_dn *ref_dn);
1775 Compare two attributes
1777 This function compares to attribute names. Note that this is a
1778 case-insensitive comparison.
1780 \param a the first attribute name to compare
1781 \param b the second attribute name to compare
1783 \return 0 if the attribute names are the same, or only differ in
1784 case; non-zero if there are any differences
1786 attribute names are restricted by rfc2251 so using
1787 strcasecmp and toupper here is ok.
1790 #define ldb_attr_cmp(a, b) strcasecmp(a, b)
1791 char *ldb_attr_casefold(TALLOC_CTX *mem_ctx, const char *s);
1792 int ldb_attr_dn(const char *attr);
1795 Create an empty message
1797 \param mem_ctx the memory context to create in. You can pass NULL
1798 to get the top level context, however the ldb context (from
1799 ldb_init()) may be a better choice
1801 struct ldb_message *ldb_msg_new(TALLOC_CTX *mem_ctx);
1804 Find an element within an message
1806 struct ldb_message_element *ldb_msg_find_element(const struct ldb_message *msg,
1807 const char *attr_name);
1810 Compare two ldb_val values
1812 \param v1 first ldb_val structure to be tested
1813 \param v2 second ldb_val structure to be tested
1815 \return 1 for a match, 0 if there is any difference
1817 int ldb_val_equal_exact(const struct ldb_val *v1, const struct ldb_val *v2);
1820 find a value within an ldb_message_element
1822 \param el the element to search
1823 \param val the value to search for
1825 \note This search is case sensitive
1827 struct ldb_val *ldb_msg_find_val(const struct ldb_message_element *el,
1828 struct ldb_val *val);
1831 add a new empty element to a ldb_message
1833 int ldb_msg_add_empty(struct ldb_message *msg,
1834 const char *attr_name,
1836 struct ldb_message_element **return_el);
1839 add a element to a ldb_message
1841 int ldb_msg_add(struct ldb_message *msg,
1842 const struct ldb_message_element *el,
1844 int ldb_msg_add_value(struct ldb_message *msg,
1845 const char *attr_name,
1846 const struct ldb_val *val,
1847 struct ldb_message_element **return_el);
1848 int ldb_msg_add_steal_value(struct ldb_message *msg,
1849 const char *attr_name,
1850 struct ldb_val *val);
1851 int ldb_msg_add_steal_string(struct ldb_message *msg,
1852 const char *attr_name, char *str);
1853 int ldb_msg_add_string(struct ldb_message *msg,
1854 const char *attr_name, const char *str);
1855 int ldb_msg_add_linearized_dn(struct ldb_message *msg, const char *attr_name,
1857 int ldb_msg_add_fmt(struct ldb_message *msg,
1858 const char *attr_name, const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1861 compare two message elements - return 0 on match
1863 int ldb_msg_element_compare(struct ldb_message_element *el1,
1864 struct ldb_message_element *el2);
1865 int ldb_msg_element_compare_name(struct ldb_message_element *el1,
1866 struct ldb_message_element *el2);
1869 Find elements in a message.
1871 This function finds elements and converts to a specific type, with
1872 a give default value if not found. Assumes that elements are
1875 const struct ldb_val *ldb_msg_find_ldb_val(const struct ldb_message *msg, const char *attr_name);
1876 int ldb_msg_find_attr_as_int(const struct ldb_message *msg,
1877 const char *attr_name,
1879 unsigned int ldb_msg_find_attr_as_uint(const struct ldb_message *msg,
1880 const char *attr_name,
1881 unsigned int default_value);
1882 int64_t ldb_msg_find_attr_as_int64(const struct ldb_message *msg,
1883 const char *attr_name,
1884 int64_t default_value);
1885 uint64_t ldb_msg_find_attr_as_uint64(const struct ldb_message *msg,
1886 const char *attr_name,
1887 uint64_t default_value);
1888 double ldb_msg_find_attr_as_double(const struct ldb_message *msg,
1889 const char *attr_name,
1890 double default_value);
1891 int ldb_msg_find_attr_as_bool(const struct ldb_message *msg,
1892 const char *attr_name,
1894 const char *ldb_msg_find_attr_as_string(const struct ldb_message *msg,
1895 const char *attr_name,
1896 const char *default_value);
1898 struct ldb_dn *ldb_msg_find_attr_as_dn(struct ldb_context *ldb,
1899 TALLOC_CTX *mem_ctx,
1900 const struct ldb_message *msg,
1901 const char *attr_name);
1903 void ldb_msg_sort_elements(struct ldb_message *msg);
1905 struct ldb_message *ldb_msg_copy_shallow(TALLOC_CTX *mem_ctx,
1906 const struct ldb_message *msg);
1907 struct ldb_message *ldb_msg_copy(TALLOC_CTX *mem_ctx,
1908 const struct ldb_message *msg);
1911 * ldb_msg_canonicalize() is now depreciated
1912 * Please use ldb_msg_normalize() instead
1914 * NOTE: Returned ldb_message object is allocated
1915 * into *ldb's context. Callers are recommended
1916 * to steal the returned object into a TALLOC_CTX
1917 * with short lifetime.
1919 struct ldb_message *ldb_msg_canonicalize(struct ldb_context *ldb,
1920 const struct ldb_message *msg) _DEPRECATED_;
1922 int ldb_msg_normalize(struct ldb_context *ldb,
1923 TALLOC_CTX *mem_ctx,
1924 const struct ldb_message *msg,
1925 struct ldb_message **_msg_out);
1929 * ldb_msg_diff() is now depreciated
1930 * Please use ldb_msg_difference() instead
1932 * NOTE: Returned ldb_message object is allocated
1933 * into *ldb's context. Callers are recommended
1934 * to steal the returned object into a TALLOC_CTX
1935 * with short lifetime.
1937 struct ldb_message *ldb_msg_diff(struct ldb_context *ldb,
1938 struct ldb_message *msg1,
1939 struct ldb_message *msg2) _DEPRECATED_;
1942 * return a ldb_message representing the differences between msg1 and msg2.
1943 * If you then use this in a ldb_modify() call,
1944 * it can be used to save edits to a message
1946 * Result message is constructed as follows:
1947 * - LDB_FLAG_MOD_ADD - elements found only in msg2
1948 * - LDB_FLAG_MOD_REPLACE - elements in msg2 that have
1949 * different value in msg1
1950 * Value for msg2 element is used
1951 * - LDB_FLAG_MOD_DELETE - elements found only in msg2
1953 * @return LDB_SUCCESS or LDB_ERR_OPERATIONS_ERROR
1955 int ldb_msg_difference(struct ldb_context *ldb,
1956 TALLOC_CTX *mem_ctx,
1957 struct ldb_message *msg1,
1958 struct ldb_message *msg2,
1959 struct ldb_message **_msg_out);
1962 Tries to find a certain string attribute in a message
1964 \param msg the message to check
1965 \param name attribute name
1966 \param value attribute value
1968 \return 1 on match and 0 otherwise.
1970 int ldb_msg_check_string_attribute(const struct ldb_message *msg,
1975 Integrity check an ldb_message
1977 This function performs basic sanity / integrity checks on an
1980 \param ldb context in which to perform the checks
1981 \param msg the message to check
1983 \return LDB_SUCCESS if the message is OK, or a non-zero error code
1984 (one of LDB_ERR_INVALID_DN_SYNTAX, LDB_ERR_ENTRY_ALREADY_EXISTS or
1985 LDB_ERR_INVALID_ATTRIBUTE_SYNTAX) if there is a problem with a
1988 int ldb_msg_sanity_check(struct ldb_context *ldb,
1989 const struct ldb_message *msg);
1992 Duplicate an ldb_val structure
1994 This function copies an ldb value structure.
1996 \param mem_ctx the memory context that the duplicated value will be
1998 \param v the ldb_val to be duplicated.
2000 \return the duplicated ldb_val structure.
2002 struct ldb_val ldb_val_dup(TALLOC_CTX *mem_ctx, const struct ldb_val *v);
2005 this allows the user to set a debug function for error reporting
2007 int ldb_set_debug(struct ldb_context *ldb,
2008 void (*debug)(void *context, enum ldb_debug_level level,
2009 const char *fmt, va_list ap) PRINTF_ATTRIBUTE(3,0),
2013 this allows the user to set custom utf8 function for error reporting
2015 void ldb_set_utf8_fns(struct ldb_context *ldb,
2017 char *(*casefold)(void *, void *, const char *, size_t n));
2020 this sets up debug to print messages on stderr
2022 int ldb_set_debug_stderr(struct ldb_context *ldb);
2024 /* control backend specific opaque values */
2025 int ldb_set_opaque(struct ldb_context *ldb, const char *name, void *value);
2026 void *ldb_get_opaque(struct ldb_context *ldb, const char *name);
2028 const char **ldb_attr_list_copy(TALLOC_CTX *mem_ctx, const char * const *attrs);
2029 const char **ldb_attr_list_copy_add(TALLOC_CTX *mem_ctx, const char * const *attrs, const char *new_attr);
2030 int ldb_attr_in_list(const char * const *attrs, const char *attr);
2032 int ldb_msg_rename_attr(struct ldb_message *msg, const char *attr, const char *replace);
2033 int ldb_msg_copy_attr(struct ldb_message *msg, const char *attr, const char *replace);
2034 void ldb_msg_remove_attr(struct ldb_message *msg, const char *attr);
2035 void ldb_msg_remove_element(struct ldb_message *msg, struct ldb_message_element *el);
2038 void ldb_parse_tree_attr_replace(struct ldb_parse_tree *tree,
2040 const char *replace);
2043 shallow copy a tree - copying only the elements array so that the caller
2044 can safely add new elements without changing the message
2046 struct ldb_parse_tree *ldb_parse_tree_copy_shallow(TALLOC_CTX *mem_ctx,
2047 const struct ldb_parse_tree *ot);
2050 Convert a time structure to a string
2052 This function converts a time_t structure to an LDAP formatted
2053 GeneralizedTime string.
2055 \param mem_ctx the memory context to allocate the return string in
2056 \param t the time structure to convert
2058 \return the formatted string, or NULL if the time structure could
2061 char *ldb_timestring(TALLOC_CTX *mem_ctx, time_t t);
2064 Convert a string to a time structure
2066 This function converts an LDAP formatted GeneralizedTime string
2067 to a time_t structure.
2069 \param s the string to convert
2071 \return the time structure, or 0 if the string cannot be converted
2073 time_t ldb_string_to_time(const char *s);
2076 convert a LDAP GeneralizedTime string in ldb_val format to a
2079 int ldb_val_to_time(const struct ldb_val *v, time_t *t);
2082 Convert a time structure to a string
2084 This function converts a time_t structure to an LDAP formatted
2087 \param mem_ctx the memory context to allocate the return string in
2088 \param t the time structure to convert
2090 \return the formatted string, or NULL if the time structure could
2093 char *ldb_timestring_utc(TALLOC_CTX *mem_ctx, time_t t);
2096 Convert a string to a time structure
2098 This function converts an LDAP formatted UTCTime string
2099 to a time_t structure.
2101 \param s the string to convert
2103 \return the time structure, or 0 if the string cannot be converted
2105 time_t ldb_string_utc_to_time(const char *s);
2108 void ldb_qsort (void *const pbase, size_t total_elems, size_t size, void *opaque, ldb_qsort_cmp_fn_t cmp);
2110 #ifndef discard_const
2111 #define discard_const(ptr) ((void *)((uintptr_t)(ptr)))
2115 a wrapper around ldb_qsort() that ensures the comparison function is
2116 type safe. This will produce a compilation warning if the types
2119 #define LDB_TYPESAFE_QSORT(base, numel, opaque, comparison) \
2122 ldb_qsort(base, numel, sizeof((base)[0]), discard_const(opaque), (ldb_qsort_cmp_fn_t)comparison); \
2123 comparison(&((base)[0]), &((base)[1]), opaque); \
2127 /* allow ldb to also call TYPESAFE_QSORT() */
2128 #ifndef TYPESAFE_QSORT
2129 #define TYPESAFE_QSORT(base, numel, comparison) \
2132 qsort(base, numel, sizeof((base)[0]), (int (*)(const void *, const void *))comparison); \
2133 comparison(&((base)[0]), &((base)[1])); \
2141 Convert an array of string represention of a control into an array of ldb_control structures
2143 \param ldb LDB context
2144 \param mem_ctx TALLOC context to return result on, and to allocate error_string on
2145 \param control_strings Array of string-formatted controls
2147 \return array of ldb_control elements
2149 struct ldb_control **ldb_parse_control_strings(struct ldb_context *ldb, TALLOC_CTX *mem_ctx, const char **control_strings);
2152 return the ldb flags
2154 unsigned int ldb_get_flags(struct ldb_context *ldb);
2156 /* set the ldb flags */
2157 void ldb_set_flags(struct ldb_context *ldb, unsigned flags);
2160 struct ldb_dn *ldb_dn_binary_from_ldb_val(TALLOC_CTX *mem_ctx,
2161 struct ldb_context *ldb,
2162 const struct ldb_val *strdn);
2164 int ldb_dn_get_binary(struct ldb_dn *dn, struct ldb_val *val);
2165 int ldb_dn_set_binary(struct ldb_dn *dn, struct ldb_val *val);
2167 /* debugging functions for ldb requests */
2168 void ldb_req_set_location(struct ldb_request *req, const char *location);
2169 const char *ldb_req_location(struct ldb_request *req);
2171 /* set the location marker on a request handle - used for debugging */
2172 #define LDB_REQ_SET_LOCATION(req) ldb_req_set_location(req, __location__)