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_version.h>
53 #include <ldb_errors.h>
56 major restrictions as compared to normal LDAP:
58 - each record must have a unique key field
59 - the key must be representable as a NULL terminated C string and may not
60 contain a comma or braces
62 major restrictions as compared to tdb:
64 - no explicit locking calls, but we have transactions when using ldb_tdb
72 An individual lump of data in a result comes in this format. The
73 pointer will usually be to a UTF-8 string if the application is
74 sensible, but it can be to anything you like, including binary data
75 blobs of arbitrary size.
77 \note the data is null (0x00) terminated, but the length does not
78 include the terminator.
81 uint8_t *data; /*!< result data */
82 size_t length; /*!< length of data */
86 /*! \cond DOXYGEN_IGNORE */
87 #ifndef PRINTF_ATTRIBUTE
88 #define PRINTF_ATTRIBUTE(a,b)
92 #if (__GNUC__ >= 3) && (__GNUC_MINOR__ >= 1 )
93 #define _DEPRECATED_ __attribute__ ((deprecated))
100 /* opaque ldb_dn structures, see ldb_dn.c for internals */
101 struct ldb_dn_component;
105 There are a number of flags that are used with ldap_modify() in
106 ldb_message_element.flags fields. The LDB_FLAG_MOD_ADD,
107 LDB_FLAG_MOD_DELETE and LDB_FLAG_MOD_REPLACE flags are used in
108 ldap_modify() calls to specify whether attributes are being added,
109 deleted or modified respectively.
111 #define LDB_FLAG_MOD_MASK 0x3
114 use this to extract the mod type from the operation
116 #define LDB_FLAG_MOD_TYPE(flags) ((flags) & LDB_FLAG_MOD_MASK)
119 Flag value used in ldap_modify() to indicate that attributes are
122 \sa LDB_FLAG_MOD_MASK
124 #define LDB_FLAG_MOD_ADD 1
127 Flag value used in ldap_modify() to indicate that attributes are
130 \sa LDB_FLAG_MOD_MASK
132 #define LDB_FLAG_MOD_REPLACE 2
135 Flag value used in ldap_modify() to indicate that attributes are
138 \sa LDB_FLAG_MOD_MASK
140 #define LDB_FLAG_MOD_DELETE 3
143 flag bits on an element usable only by the internal implementation
145 #define LDB_FLAG_INTERNAL_MASK 0xFFFFFFF0
148 OID for logic AND comaprison.
150 This is the well known object ID for a logical AND comparitor.
152 #define LDB_OID_COMPARATOR_AND "1.2.840.113556.1.4.803"
155 OID for logic OR comparison.
157 This is the well known object ID for a logical OR comparitor.
159 #define LDB_OID_COMPARATOR_OR "1.2.840.113556.1.4.804"
162 results are given back as arrays of ldb_message_element
164 struct ldb_message_element {
167 unsigned int num_values;
168 struct ldb_val *values;
173 a ldb_message represents all or part of a record. It can contain an arbitrary
178 unsigned int num_elements;
179 struct ldb_message_element *elements;
182 enum ldb_changetype {
183 LDB_CHANGETYPE_NONE=0,
185 LDB_CHANGETYPE_DELETE,
186 LDB_CHANGETYPE_MODIFY,
187 LDB_CHANGETYPE_MODRDN
193 This structure contains a LDIF record, as returned from ldif_read()
194 and equivalent functions.
197 enum ldb_changetype changetype; /*!< The type of change */
198 struct ldb_message *msg; /*!< The changes */
201 enum ldb_scope {LDB_SCOPE_DEFAULT=-1,
203 LDB_SCOPE_ONELEVEL=1,
204 LDB_SCOPE_SUBTREE=2};
207 struct tevent_context;
209 /* debugging uses one of the following levels */
210 enum ldb_debug_level {LDB_DEBUG_FATAL, LDB_DEBUG_ERROR,
211 LDB_DEBUG_WARNING, LDB_DEBUG_TRACE};
214 the user can optionally supply a debug function. The function
215 is based on the vfprintf() style of interface, but with the addition
218 struct ldb_debug_ops {
219 void (*debug)(void *context, enum ldb_debug_level level,
220 const char *fmt, va_list ap) PRINTF_ATTRIBUTE(3,0);
225 The user can optionally supply a custom utf8 functions,
226 to handle comparisons and casefolding.
228 struct ldb_utf8_fns {
230 char *(*casefold)(void *context, TALLOC_CTX *mem_ctx, const char *s, size_t n);
234 Flag value for database connection mode.
236 If LDB_FLG_RDONLY is used in ldb_connect, then the database will be
237 opened read-only, if possible.
239 #define LDB_FLG_RDONLY 1
242 Flag value for database connection mode.
244 If LDB_FLG_NOSYNC is used in ldb_connect, then the database will be
245 opened without synchronous operations, if possible.
247 #define LDB_FLG_NOSYNC 2
250 Flag value to specify autoreconnect mode.
252 If LDB_FLG_RECONNECT is used in ldb_connect, then the backend will
253 be opened in a way that makes it try to auto reconnect if the
254 connection is dropped (actually make sense only with ldap).
256 #define LDB_FLG_RECONNECT 4
259 Flag to tell backends not to use mmap
261 #define LDB_FLG_NOMMAP 8
264 Flag to tell ldif handlers not to force encoding of binary
267 #define LDB_FLG_SHOW_BINARY 16
270 Flags to enable ldb tracing
272 #define LDB_FLG_ENABLE_TRACING 32
275 Flags to tell LDB not to create a new database file:
277 Without this flag ldb_tdb (for example) will create a blank file
278 during an invocation of ldb_connect(), even when the caller only
279 wanted read operations, for example in ldbsearch.
281 #define LDB_FLG_DONT_CREATE_DB 64
284 structures for ldb_parse_tree handling code
286 enum ldb_parse_op { LDB_OP_AND=1, LDB_OP_OR=2, LDB_OP_NOT=3,
287 LDB_OP_EQUALITY=4, LDB_OP_SUBSTRING=5,
288 LDB_OP_GREATER=6, LDB_OP_LESS=7, LDB_OP_PRESENT=8,
289 LDB_OP_APPROX=9, LDB_OP_EXTENDED=10 };
291 struct ldb_parse_tree {
292 enum ldb_parse_op operation;
295 struct ldb_parse_tree *child;
299 struct ldb_val value;
303 int start_with_wildcard;
304 int end_with_wildcard;
305 struct ldb_val **chunks;
312 struct ldb_val value;
318 struct ldb_val value;
321 unsigned int num_elements;
322 struct ldb_parse_tree **elements;
327 struct ldb_parse_tree *ldb_parse_tree(TALLOC_CTX *mem_ctx, const char *s);
328 char *ldb_filter_from_tree(TALLOC_CTX *mem_ctx, const struct ldb_parse_tree *tree);
333 This function encodes a binary blob using the encoding rules in RFC
334 2254 (Section 4). This function also escapes any non-printable
337 \param mem_ctx the memory context to allocate the return string in.
338 \param val the (potentially) binary data to be encoded
340 \return the encoded data as a null terminated string
342 \sa <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>.
344 char *ldb_binary_encode(TALLOC_CTX *mem_ctx, struct ldb_val val);
349 This function encodes a string using the encoding rules in RFC 2254
350 (Section 4). This function also escapes any non-printable
353 \param mem_ctx the memory context to allocate the return string in.
354 \param string the string to be encoded
356 \return the encoded data as a null terminated string
358 \sa <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>.
360 char *ldb_binary_encode_string(TALLOC_CTX *mem_ctx, const char *string);
363 functions for controlling attribute handling
365 typedef int (*ldb_attr_handler_t)(struct ldb_context *, TALLOC_CTX *mem_ctx, const struct ldb_val *, struct ldb_val *);
366 typedef int (*ldb_attr_comparison_t)(struct ldb_context *, TALLOC_CTX *mem_ctx, const struct ldb_val *, const struct ldb_val *);
367 struct ldb_schema_attribute;
368 typedef int (*ldb_attr_operator_t)(struct ldb_context *, enum ldb_parse_op operation,
369 const struct ldb_schema_attribute *a,
370 const struct ldb_val *, const struct ldb_val *, bool *matched);
373 attribute handler structure
375 attr -> The attribute name
376 ldif_read_fn -> convert from ldif to binary format
377 ldif_write_fn -> convert from binary to ldif format
378 canonicalise_fn -> canonicalise a value, for use by indexing and dn construction
379 comparison_fn -> compare two values
382 struct ldb_schema_syntax {
384 ldb_attr_handler_t ldif_read_fn;
385 ldb_attr_handler_t ldif_write_fn;
386 ldb_attr_handler_t canonicalise_fn;
387 ldb_attr_comparison_t comparison_fn;
388 ldb_attr_operator_t operator_fn;
391 struct ldb_schema_attribute {
394 const struct ldb_schema_syntax *syntax;
397 const struct ldb_schema_attribute *ldb_schema_attribute_by_name(struct ldb_context *ldb,
400 struct ldb_dn_extended_syntax {
402 ldb_attr_handler_t read_fn;
403 ldb_attr_handler_t write_clear_fn;
404 ldb_attr_handler_t write_hex_fn;
407 const struct ldb_dn_extended_syntax *ldb_dn_extended_syntax_by_name(struct ldb_context *ldb,
411 The attribute is not returned by default
413 #define LDB_ATTR_FLAG_HIDDEN (1<<0)
415 /* the attribute handler name should be freed when released */
416 #define LDB_ATTR_FLAG_ALLOCATED (1<<1)
419 The attribute is supplied by the application and should not be removed
421 #define LDB_ATTR_FLAG_FIXED (1<<2)
424 when this is set, attempts to create two records which have the same
425 value for this attribute will return LDB_ERR_ENTRY_ALREADY_EXISTS
427 #define LDB_ATTR_FLAG_UNIQUE_INDEX (1<<3)
430 when this is set, attempts to create two attribute values for this attribute on a single DN will return LDB_ERR_CONSTRAINT_VIOLATION
432 #define LDB_ATTR_FLAG_SINGLE_VALUE (1<<4)
435 * The values should always be base64 encoded
437 #define LDB_ATTR_FLAG_FORCE_BASE64_LDIF (1<<5)
440 * The attribute was loaded from a DB, rather than via the C API
442 #define LDB_ATTR_FLAG_FROM_DB (1<<6)
445 * The attribute was loaded from a DB, rather than via the C API
447 #define LDB_ATTR_FLAG_INDEXED (1<<7)
450 LDAP attribute syntax for a DN
452 This is the well-known LDAP attribute syntax for a DN.
454 See <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
456 #define LDB_SYNTAX_DN "1.3.6.1.4.1.1466.115.121.1.12"
459 LDAP attribute syntax for a Directory String
461 This is the well-known LDAP attribute syntax for a Directory String.
463 \sa <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
465 #define LDB_SYNTAX_DIRECTORY_STRING "1.3.6.1.4.1.1466.115.121.1.15"
468 LDAP attribute syntax for an integer
470 This is the well-known LDAP attribute syntax for an integer.
472 See <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
474 #define LDB_SYNTAX_INTEGER "1.3.6.1.4.1.1466.115.121.1.27"
477 LDAP attribute syntax for a boolean
479 This is the well-known LDAP attribute syntax for a boolean.
481 See <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
483 #define LDB_SYNTAX_BOOLEAN "1.3.6.1.4.1.1466.115.121.1.7"
486 LDAP attribute syntax for an octet string
488 This is the well-known LDAP attribute syntax for an octet string.
490 See <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
492 #define LDB_SYNTAX_OCTET_STRING "1.3.6.1.4.1.1466.115.121.1.40"
495 LDAP attribute syntax for UTC time.
497 This is the well-known LDAP attribute syntax for a UTC time.
499 See <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
501 #define LDB_SYNTAX_UTC_TIME "1.3.6.1.4.1.1466.115.121.1.53"
502 #define LDB_SYNTAX_GENERALIZED_TIME "1.3.6.1.4.1.1466.115.121.1.24"
504 #define LDB_SYNTAX_OBJECTCLASS "LDB_SYNTAX_OBJECTCLASS"
506 /* sorting helpers */
507 typedef int (*ldb_qsort_cmp_fn_t) (void *v1, void *v2, void *opaque);
509 /* Individual controls */
512 OID for getting and manipulating attributes from the ldb
513 without interception in the operational module.
514 It can be used to access attribute that used to be stored in the sam
515 and that are now calculated.
517 #define LDB_CONTROL_BYPASS_OPERATIONAL_OID "1.3.6.1.4.1.7165.4.3.13"
518 #define LDB_CONTROL_BYPASS_OPERATIONAL_NAME "bypassoperational"
521 OID for recalculate RDN (rdn attribute and 'name') control. This control forces
522 the rdn_name module to the recalculate the rdn and name attributes as if the
523 object was just created.
525 #define LDB_CONTROL_RECALCULATE_RDN_OID "1.3.6.1.4.1.7165.4.3.30"
528 OID for recalculate SD control. This control force the
529 dsdb code to recalculate the SD of the object as if the
530 object was just created.
533 #define LDB_CONTROL_RECALCULATE_SD_OID "1.3.6.1.4.1.7165.4.3.5"
534 #define LDB_CONTROL_RECALCULATE_SD_NAME "recalculate_sd"
537 REVEAL_INTERNALS is used to reveal internal attributes and DN
538 components which are not normally shown to the user
540 #define LDB_CONTROL_REVEAL_INTERNALS "1.3.6.1.4.1.7165.4.3.6"
541 #define LDB_CONTROL_REVEAL_INTERNALS_NAME "reveal_internals"
544 LDB_CONTROL_AS_SYSTEM is used to skip access checks on operations
545 that are performed by the system, but with a user's credentials, e.g.
548 #define LDB_CONTROL_AS_SYSTEM_OID "1.3.6.1.4.1.7165.4.3.7"
551 LDB_CONTROL_PROVISION_OID is used to skip some constraint checks. It's is
552 mainly thought to be used for the provisioning.
554 #define LDB_CONTROL_PROVISION_OID "1.3.6.1.4.1.7165.4.3.16"
555 #define LDB_CONTROL_PROVISION_NAME "provision"
560 OID for the paged results control. This control is included in the
561 searchRequest and searchResultDone messages as part of the controls
562 field of the LDAPMessage, as defined in Section 4.1.12 of
565 \sa <a href="http://www.ietf.org/rfc/rfc2696.txt">RFC 2696</a>.
567 #define LDB_CONTROL_PAGED_RESULTS_OID "1.2.840.113556.1.4.319"
568 #define LDB_CONTROL_PAGED_RESULTS_NAME "paged_results"
571 OID for specifying the returned elements of the ntSecurityDescriptor
573 \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>
575 #define LDB_CONTROL_SD_FLAGS_OID "1.2.840.113556.1.4.801"
576 #define LDB_CONTROL_SD_FLAGS_NAME "sd_flags"
579 OID for specifying an advanced scope for the search (one partition)
581 \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>
583 #define LDB_CONTROL_DOMAIN_SCOPE_OID "1.2.840.113556.1.4.1339"
584 #define LDB_CONTROL_DOMAIN_SCOPE_NAME "domain_scope"
587 OID for specifying an advanced scope for a search
589 \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>
591 #define LDB_CONTROL_SEARCH_OPTIONS_OID "1.2.840.113556.1.4.1340"
592 #define LDB_CONTROL_SEARCH_OPTIONS_NAME "search_options"
597 \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>
599 #define LDB_CONTROL_NOTIFICATION_OID "1.2.840.113556.1.4.528"
600 #define LDB_CONTROL_NOTIFICATION_NAME "notification"
603 OID for performing subtree deletes
605 \sa <a href="http://msdn.microsoft.com/en-us/library/aa366991(v=VS.85).aspx">Microsoft documentation of this OID</a>
607 #define LDB_CONTROL_TREE_DELETE_OID "1.2.840.113556.1.4.805"
608 #define LDB_CONTROL_TREE_DELETE_NAME "tree_delete"
611 OID for getting deleted objects
613 \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>
615 #define LDB_CONTROL_SHOW_DELETED_OID "1.2.840.113556.1.4.417"
616 #define LDB_CONTROL_SHOW_DELETED_NAME "show_deleted"
619 OID for getting recycled objects
621 \sa <a href="http://msdn.microsoft.com/en-us/library/dd304621(PROT.13).aspx">Microsoft documentation of this OID</a>
623 #define LDB_CONTROL_SHOW_RECYCLED_OID "1.2.840.113556.1.4.2064"
624 #define LDB_CONTROL_SHOW_RECYCLED_NAME "show_recycled"
627 OID for getting deactivated linked attributes
629 \sa <a href="http://msdn.microsoft.com/en-us/library/dd302781(PROT.13).aspx">Microsoft documentation of this OID</a>
631 #define LDB_CONTROL_SHOW_DEACTIVATED_LINK_OID "1.2.840.113556.1.4.2065"
632 #define LDB_CONTROL_SHOW_DEACTIVATED_LINK_NAME "show_deactivated_link"
637 \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>
639 #define LDB_CONTROL_EXTENDED_DN_OID "1.2.840.113556.1.4.529"
640 #define LDB_CONTROL_EXTENDED_DN_NAME "extended_dn"
643 OID for LDAP server sort result extension.
645 This control is included in the searchRequest message as part of
646 the controls field of the LDAPMessage, as defined in Section 4.1.12
647 of LDAP v3. The controlType is set to
648 "1.2.840.113556.1.4.473". The criticality MAY be either TRUE or
649 FALSE (where absent is also equivalent to FALSE) at the client's
652 \sa <a href="http://www.ietf.org/rfc/rfc2891.txt">RFC 2891</a>.
654 #define LDB_CONTROL_SERVER_SORT_OID "1.2.840.113556.1.4.473"
655 #define LDB_CONTROL_SERVER_SORT_NAME "server_sort"
658 OID for LDAP server sort result response extension.
660 This control is included in the searchResultDone message as part of
661 the controls field of the LDAPMessage, as defined in Section 4.1.12 of
664 \sa <a href="http://www.ietf.org/rfc/rfc2891.txt">RFC 2891</a>.
666 #define LDB_CONTROL_SORT_RESP_OID "1.2.840.113556.1.4.474"
667 #define LDB_CONTROL_SORT_RESP_NAME "server_sort_resp"
670 OID for LDAP Attribute Scoped Query extension.
672 This control is included in SearchRequest or SearchResponse
673 messages as part of the controls field of the LDAPMessage.
675 #define LDB_CONTROL_ASQ_OID "1.2.840.113556.1.4.1504"
676 #define LDB_CONTROL_ASQ_NAME "asq"
679 OID for LDAP Directory Sync extension.
681 This control is included in SearchRequest or SearchResponse
682 messages as part of the controls field of the LDAPMessage.
684 #define LDB_CONTROL_DIRSYNC_OID "1.2.840.113556.1.4.841"
685 #define LDB_CONTROL_DIRSYNC_NAME "dirsync"
686 #define LDB_CONTROL_DIRSYNC_EX_OID "1.2.840.113556.1.4.2090"
687 #define LDB_CONTROL_DIRSYNC_EX_NAME "dirsync_ex"
691 OID for LDAP Virtual List View Request extension.
693 This control is included in SearchRequest messages
694 as part of the controls field of the LDAPMessage.
696 #define LDB_CONTROL_VLV_REQ_OID "2.16.840.1.113730.3.4.9"
697 #define LDB_CONTROL_VLV_REQ_NAME "vlv"
700 OID for LDAP Virtual List View Response extension.
702 This control is included in SearchResponse messages
703 as part of the controls field of the LDAPMessage.
705 #define LDB_CONTROL_VLV_RESP_OID "2.16.840.1.113730.3.4.10"
706 #define LDB_CONTROL_VLV_RESP_NAME "vlv_resp"
709 OID to let modifies don't give an error when adding an existing
710 attribute with the same value or deleting an nonexisting one attribute
712 \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>
714 #define LDB_CONTROL_PERMISSIVE_MODIFY_OID "1.2.840.113556.1.4.1413"
715 #define LDB_CONTROL_PERMISSIVE_MODIFY_NAME "permissive_modify"
718 OID to allow the server to be more 'fast and loose' with the data being added.
720 \sa <a href="http://msdn.microsoft.com/en-us/library/aa366982(v=VS.85).aspx">Microsoft documentation of this OID</a>
722 #define LDB_CONTROL_SERVER_LAZY_COMMIT "1.2.840.113556.1.4.619"
725 Control for RODC join -see [MS-ADTS] section 3.1.1.3.4.1.23
727 \sa <a href="">Microsoft documentation of this OID</a>
729 #define LDB_CONTROL_RODC_DCPROMO_OID "1.2.840.113556.1.4.1341"
730 #define LDB_CONTROL_RODC_DCPROMO_NAME "rodc_join"
732 /* Other standardised controls */
735 OID for the allowing client to request temporary relaxed
736 enforcement of constraints of the x.500 model.
738 Mainly used for the OpenLDAP backend.
740 \sa <a href="http://opends.dev.java.net/public/standards/draft-zeilenga-ldap-managedit.txt">draft managedit</a>.
742 #define LDB_CONTROL_RELAX_OID "1.3.6.1.4.1.4203.666.5.12"
743 #define LDB_CONTROL_RELAX_NAME "relax"
746 OID for the allowing some kind of relax check for attributes with DNs
749 \sa 3.1.1.3.4.1.16 in [MS-ADTS].pdf
751 #define LDB_CONTROL_VERIFY_NAME_OID "1.2.840.113556.1.4.1338"
752 #define LDB_CONTROL_VERIFY_NAME_NAME "verify_name"
754 /* Extended operations */
757 OID for LDAP Extended Operation SEQUENCE_NUMBER
759 This extended operation is used to retrieve the extended sequence number.
761 #define LDB_EXTENDED_SEQUENCE_NUMBER "1.3.6.1.4.1.7165.4.4.3"
764 OID for LDAP Extended Operation PASSWORD_CHANGE.
766 This Extended operation is used to allow user password changes by the user
769 #define LDB_EXTENDED_PASSWORD_CHANGE_OID "1.3.6.1.4.1.4203.1.11.1"
773 OID for LDAP Extended Operation FAST_BIND
775 This Extended operations is used to perform a fast bind.
777 #define LDB_EXTENDED_FAST_BIND_OID "1.2.840.113556.1.4.1781"
780 OID for LDAP Extended Operation START_TLS.
782 This Extended operation is used to start a new TLS channel on top of a clear
785 #define LDB_EXTENDED_START_TLS_OID "1.3.6.1.4.1.1466.20037"
788 OID for LDAP Extended Operation DYNAMIC_REFRESH.
790 This Extended operation is used to create and maintain objects which exist
791 only a specific time, e.g. when a certain client or a certain person is
792 logged in. Data refreshes have to be periodically sent in a specific
793 interval. Otherwise the entry is going to be removed.
795 #define LDB_EXTENDED_DYNAMIC_OID "1.3.6.1.4.1.1466.101.119.1"
797 struct ldb_sd_flags_control {
799 * request the owner 0x00000001
800 * request the group 0x00000002
801 * request the DACL 0x00000004
802 * request the SACL 0x00000008
804 unsigned secinfo_flags;
808 * DOMAIN_SCOPE 0x00000001
809 * this limits the search to one partition,
810 * and no referrals will be returned.
811 * (Note this doesn't limit the entries by there
812 * objectSid belonging to a domain! Builtin and Foreign Sids
813 * are still returned)
815 * PHANTOM_ROOT 0x00000002
816 * this search on the whole tree on a domain controller
817 * over multiple partitions without referrals.
818 * (This is the default behavior on the Global Catalog Port)
821 #define LDB_SEARCH_OPTION_DOMAIN_SCOPE 0x00000001
822 #define LDB_SEARCH_OPTION_PHANTOM_ROOT 0x00000002
824 struct ldb_search_options_control {
825 unsigned search_options;
828 struct ldb_paged_control {
834 struct ldb_extended_dn_control {
838 struct ldb_server_sort_control {
839 const char *attributeName;
840 const char *orderingRule;
844 struct ldb_sort_resp_control {
849 struct ldb_asq_control {
851 char *source_attribute;
856 struct ldb_dirsync_control {
863 struct ldb_vlv_req_control {
881 struct ldb_vlv_resp_control {
889 struct ldb_verify_name_control {
901 enum ldb_request_type {
908 LDB_REQ_REGISTER_CONTROL,
909 LDB_REQ_REGISTER_PARTITION
912 enum ldb_reply_type {
929 struct ldb_extended {
931 void *data; /* NULL or a valid talloc pointer! talloc_get_type() will be used on it */
934 enum ldb_sequence_type {
936 LDB_SEQ_HIGHEST_TIMESTAMP,
940 #define LDB_SEQ_GLOBAL_SEQUENCE 0x01
941 #define LDB_SEQ_TIMESTAMP_SEQUENCE 0x02
943 struct ldb_seqnum_request {
944 enum ldb_sequence_type type;
947 struct ldb_seqnum_result {
954 struct ldb_message **msgs;
955 struct ldb_extended *extended;
956 struct ldb_control **controls;
962 enum ldb_reply_type type;
963 struct ldb_message *message;
964 struct ldb_extended *response;
965 struct ldb_control **controls;
974 enum ldb_scope scope;
975 struct ldb_parse_tree *tree;
976 const char * const *attrs;
977 struct ldb_result *res;
981 const struct ldb_message *message;
985 const struct ldb_message *message;
993 struct ldb_dn *olddn;
994 struct ldb_dn *newdn;
997 struct ldb_register_control {
1001 struct ldb_register_partition {
1005 typedef int (*ldb_request_callback_t)(struct ldb_request *, struct ldb_reply *);
1007 struct ldb_request {
1009 enum ldb_request_type operation;
1012 struct ldb_search search;
1014 struct ldb_modify mod;
1015 struct ldb_delete del;
1016 struct ldb_rename rename;
1017 struct ldb_extended extended;
1018 struct ldb_register_control reg_control;
1019 struct ldb_register_partition reg_partition;
1022 struct ldb_control **controls;
1025 ldb_request_callback_t callback;
1029 struct ldb_handle *handle;
1032 int ldb_request(struct ldb_context *ldb, struct ldb_request *request);
1033 int ldb_request_done(struct ldb_request *req, int status);
1034 bool ldb_request_is_done(struct ldb_request *req);
1036 int ldb_modules_wait(struct ldb_handle *handle);
1037 int ldb_wait(struct ldb_handle *handle, enum ldb_wait_type type);
1039 int ldb_set_timeout(struct ldb_context *ldb, struct ldb_request *req, int timeout);
1040 int ldb_set_timeout_from_prev_req(struct ldb_context *ldb, struct ldb_request *oldreq, struct ldb_request *newreq);
1041 void ldb_set_create_perms(struct ldb_context *ldb, unsigned int perms);
1042 void ldb_set_modules_dir(struct ldb_context *ldb, const char *path);
1043 struct tevent_context;
1044 void ldb_set_event_context(struct ldb_context *ldb, struct tevent_context *ev);
1045 struct tevent_context * ldb_get_event_context(struct ldb_context *ldb);
1048 Initialise ldbs' global information
1050 This is required before any other LDB call
1052 \return 0 if initialisation succeeded, -1 otherwise
1054 int ldb_global_init(void);
1057 Initialise an ldb context
1059 This is required before any other LDB call.
1061 \param mem_ctx pointer to a talloc memory context. Pass NULL if there is
1062 no suitable context available.
1064 \note The LDB modules will be loaded from directory specified by the environment
1065 variable LDB_MODULES_PATH. If the variable is not specified, the compiled-in default
1068 \return pointer to ldb_context that should be free'd (using talloc_free())
1069 at the end of the program.
1071 struct ldb_context *ldb_init(TALLOC_CTX *mem_ctx, struct tevent_context *ev_ctx);
1073 typedef void (*ldb_async_timeout_fn) (void *);
1074 typedef bool (*ldb_async_callback_fn) (void *);
1075 typedef int (*ldb_async_ctx_add_op_fn)(void *, time_t, void *, ldb_async_timeout_fn, ldb_async_callback_fn);
1076 typedef int (*ldb_async_ctx_wait_op_fn)(void *);
1078 void ldb_async_ctx_set_private_data(struct ldb_context *ldb,
1079 void *private_data);
1080 void ldb_async_ctx_set_add_op(struct ldb_context *ldb,
1081 ldb_async_ctx_add_op_fn add_op);
1082 void ldb_async_ctx_set_wait_op(struct ldb_context *ldb,
1083 ldb_async_ctx_wait_op_fn wait_op);
1086 Connect to a database.
1088 This is typically called soon after ldb_init(), and is required prior to
1089 any search or database modification operations.
1091 The URL can be one of the following forms:
1097 \param ldb the context associated with the database (from ldb_init())
1098 \param url the URL of the database to connect to, as noted above
1099 \param flags a combination of LDB_FLG_* to modify the connection behaviour
1100 \param options backend specific options - passed uninterpreted to the backend
1102 \return result code (LDB_SUCCESS on success, or a failure code)
1104 \note It is an error to connect to a database that does not exist in readonly mode
1105 (that is, with LDB_FLG_RDONLY). However in read-write mode, the database will be
1106 created if it does not exist.
1108 int ldb_connect(struct ldb_context *ldb, const char *url, unsigned int flags, const char *options[]);
1111 return an automatic basedn from the rootDomainNamingContext of the rootDSE
1112 This value have been set in an opaque pointer at connection time
1114 struct ldb_dn *ldb_get_root_basedn(struct ldb_context *ldb);
1117 return an automatic basedn from the configurationNamingContext of the rootDSE
1118 This value have been set in an opaque pointer at connection time
1120 struct ldb_dn *ldb_get_config_basedn(struct ldb_context *ldb);
1123 return an automatic basedn from the schemaNamingContext of the rootDSE
1124 This value have been set in an opaque pointer at connection time
1126 struct ldb_dn *ldb_get_schema_basedn(struct ldb_context *ldb);
1129 return an automatic baseDN from the defaultNamingContext of the rootDSE
1130 This value have been set in an opaque pointer at connection time
1132 struct ldb_dn *ldb_get_default_basedn(struct ldb_context *ldb);
1135 The default async search callback function
1137 \param req the request we are callback of
1138 \param ares a single reply from the async core
1140 \return result code (LDB_SUCCESS on success, or a failure code)
1142 \note this function expects req->context to always be an struct ldb_result pointer
1143 AND a talloc context, this function will steal on the context each message
1144 from the ares reply passed on by the async core so that in the end all the
1145 messages will be in the context (ldb_result) memory tree.
1146 Freeing the passed context (ldb_result tree) will free all the resources
1147 (the request need to be freed separately and the result doe not depend on the
1148 request that can be freed as sson as the search request is finished)
1151 int ldb_search_default_callback(struct ldb_request *req, struct ldb_reply *ares);
1154 The default async extended operation callback function
1156 \param req the request we are callback of
1157 \param ares a single reply from the async core
1159 \return result code (LDB_SUCCESS on success, or a failure code)
1161 int ldb_op_default_callback(struct ldb_request *req, struct ldb_reply *ares);
1163 int ldb_modify_default_callback(struct ldb_request *req, struct ldb_reply *ares);
1166 Helper function to build a search request
1168 \param ret_req the request structure is returned here (talloced on mem_ctx)
1169 \param ldb the context associated with the database (from ldb_init())
1170 \param mem_ctx a talloc memory context (used as parent of ret_req)
1171 \param base the Base Distinguished Name for the query (use ldb_dn_new() for an empty one)
1172 \param scope the search scope for the query
1173 \param expression the search expression to use for this query
1174 \param attrs the search attributes for the query (pass NULL if none required)
1175 \param controls an array of controls
1176 \param context the callback function context
1177 \param the callback function to handle the async replies
1178 \param the parent request if any
1180 \return result code (LDB_SUCCESS on success, or a failure code)
1183 int ldb_build_search_req(struct ldb_request **ret_req,
1184 struct ldb_context *ldb,
1185 TALLOC_CTX *mem_ctx,
1186 struct ldb_dn *base,
1187 enum ldb_scope scope,
1188 const char *expression,
1189 const char * const *attrs,
1190 struct ldb_control **controls,
1192 ldb_request_callback_t callback,
1193 struct ldb_request *parent);
1195 int ldb_build_search_req_ex(struct ldb_request **ret_req,
1196 struct ldb_context *ldb,
1197 TALLOC_CTX *mem_ctx,
1198 struct ldb_dn *base,
1199 enum ldb_scope scope,
1200 struct ldb_parse_tree *tree,
1201 const char * const *attrs,
1202 struct ldb_control **controls,
1204 ldb_request_callback_t callback,
1205 struct ldb_request *parent);
1208 Helper function to build an add request
1210 \param ret_req the request structure is returned here (talloced on mem_ctx)
1211 \param ldb the context associated with the database (from ldb_init())
1212 \param mem_ctx a talloc memory context (used as parent of ret_req)
1213 \param message contains the entry to be added
1214 \param controls an array of controls
1215 \param context the callback function context
1216 \param the callback function to handle the async replies
1217 \param the parent request if any
1219 \return result code (LDB_SUCCESS on success, or a failure code)
1222 int ldb_build_add_req(struct ldb_request **ret_req,
1223 struct ldb_context *ldb,
1224 TALLOC_CTX *mem_ctx,
1225 const struct ldb_message *message,
1226 struct ldb_control **controls,
1228 ldb_request_callback_t callback,
1229 struct ldb_request *parent);
1232 Helper function to build a modify request
1234 \param ret_req the request structure is returned here (talloced on mem_ctx)
1235 \param ldb the context associated with the database (from ldb_init())
1236 \param mem_ctx a talloc memory context (used as parent of ret_req)
1237 \param message contains the entry to be modified
1238 \param controls an array of controls
1239 \param context the callback function context
1240 \param the callback function to handle the async replies
1241 \param the parent request if any
1243 \return result code (LDB_SUCCESS on success, or a failure code)
1246 int ldb_build_mod_req(struct ldb_request **ret_req,
1247 struct ldb_context *ldb,
1248 TALLOC_CTX *mem_ctx,
1249 const struct ldb_message *message,
1250 struct ldb_control **controls,
1252 ldb_request_callback_t callback,
1253 struct ldb_request *parent);
1256 Helper function to build a delete request
1258 \param ret_req the request structure is returned here (talloced on mem_ctx)
1259 \param ldb the context associated with the database (from ldb_init())
1260 \param mem_ctx a talloc memory context (used as parent of ret_req)
1261 \param dn the DN to be deleted
1262 \param controls an array of controls
1263 \param context the callback function context
1264 \param the callback function to handle the async replies
1265 \param the parent request if any
1267 \return result code (LDB_SUCCESS on success, or a failure code)
1270 int ldb_build_del_req(struct ldb_request **ret_req,
1271 struct ldb_context *ldb,
1272 TALLOC_CTX *mem_ctx,
1274 struct ldb_control **controls,
1276 ldb_request_callback_t callback,
1277 struct ldb_request *parent);
1280 Helper function to build a rename request
1282 \param ret_req the request structure is returned here (talloced on mem_ctx)
1283 \param ldb the context associated with the database (from ldb_init())
1284 \param mem_ctx a talloc memory context (used as parent of ret_req)
1285 \param olddn the old DN
1286 \param newdn the new DN
1287 \param controls an array of controls
1288 \param context the callback function context
1289 \param the callback function to handle the async replies
1290 \param the parent request if any
1292 \return result code (LDB_SUCCESS on success, or a failure code)
1295 int ldb_build_rename_req(struct ldb_request **ret_req,
1296 struct ldb_context *ldb,
1297 TALLOC_CTX *mem_ctx,
1298 struct ldb_dn *olddn,
1299 struct ldb_dn *newdn,
1300 struct ldb_control **controls,
1302 ldb_request_callback_t callback,
1303 struct ldb_request *parent);
1306 Add a ldb_control to a ldb_request
1308 \param req the request struct where to add the control
1309 \param oid the object identifier of the control as string
1310 \param critical whether the control should be critical or not
1311 \param data a talloc pointer to the control specific data
1313 \return result code (LDB_SUCCESS on success, or a failure code)
1315 int ldb_request_add_control(struct ldb_request *req, const char *oid, bool critical, void *data);
1318 replace a ldb_control in a ldb_request
1320 \param req the request struct where to add the control
1321 \param oid the object identifier of the control as string
1322 \param critical whether the control should be critical or not
1323 \param data a talloc pointer to the control specific data
1325 \return result code (LDB_SUCCESS on success, or a failure code)
1327 int ldb_request_replace_control(struct ldb_request *req, const char *oid, bool critical, void *data);
1330 check if a control with the specified "oid" exist and return it
1331 \param req the request struct where to add the control
1332 \param oid the object identifier of the control as string
1334 \return the control, NULL if not found
1336 struct ldb_control *ldb_request_get_control(struct ldb_request *req, const char *oid);
1339 check if a control with the specified "oid" exist and return it
1340 \param rep the reply struct where to add the control
1341 \param oid the object identifier of the control as string
1343 \return the control, NULL if not found
1345 struct ldb_control *ldb_reply_get_control(struct ldb_reply *rep, const char *oid);
1350 This function searches the database, and returns
1351 records that match an LDAP-like search expression
1353 \param ldb the context associated with the database (from ldb_init())
1354 \param mem_ctx the memory context to use for the request and the results
1355 \param result the return result
1356 \param base the Base Distinguished Name for the query (use ldb_dn_new() for an empty one)
1357 \param scope the search scope for the query
1358 \param attrs the search attributes for the query (pass NULL if none required)
1359 \param exp_fmt the search expression to use for this query (printf like)
1361 \return result code (LDB_SUCCESS on success, or a failure code)
1363 \note use talloc_free() to free the ldb_result returned
1365 int ldb_search(struct ldb_context *ldb, TALLOC_CTX *mem_ctx,
1366 struct ldb_result **result, struct ldb_dn *base,
1367 enum ldb_scope scope, const char * const *attrs,
1368 const char *exp_fmt, ...) PRINTF_ATTRIBUTE(7,8);
1371 Add a record to the database.
1373 This function adds a record to the database. This function will fail
1374 if a record with the specified class and key already exists in the
1377 \param ldb the context associated with the database (from
1379 \param message the message containing the record to add.
1381 \return result code (LDB_SUCCESS if the record was added, otherwise
1384 int ldb_add(struct ldb_context *ldb,
1385 const struct ldb_message *message);
1388 Modify the specified attributes of a record
1390 This function modifies a record that is in the database.
1392 \param ldb the context associated with the database (from
1394 \param message the message containing the changes required.
1396 \return result code (LDB_SUCCESS if the record was modified as
1397 requested, otherwise a failure code)
1399 int ldb_modify(struct ldb_context *ldb,
1400 const struct ldb_message *message);
1403 Rename a record in the database
1405 This function renames a record in the database.
1407 \param ldb the context associated with the database (from
1409 \param olddn the DN for the record to be renamed.
1410 \param newdn the new DN
1412 \return result code (LDB_SUCCESS if the record was renamed as
1413 requested, otherwise a failure code)
1415 int ldb_rename(struct ldb_context *ldb, struct ldb_dn *olddn, struct ldb_dn *newdn);
1418 Delete a record from the database
1420 This function deletes a record from the database.
1422 \param ldb the context associated with the database (from
1424 \param dn the DN for the record to be deleted.
1426 \return result code (LDB_SUCCESS if the record was deleted,
1427 otherwise a failure code)
1429 int ldb_delete(struct ldb_context *ldb, struct ldb_dn *dn);
1432 The default async extended operation callback function
1434 \param req the request we are callback of
1435 \param ares a single reply from the async core
1437 \return result code (LDB_SUCCESS on success, or a failure code)
1439 \note this function expects req->context to always be an struct ldb_result pointer
1440 AND a talloc context, this function will steal on the context each message
1441 from the ares reply passed on by the async core so that in the end all the
1442 messages will be in the context (ldb_result) memory tree.
1443 Freeing the passed context (ldb_result tree) will free all the resources
1444 (the request need to be freed separately and the result doe not depend on the
1445 request that can be freed as sson as the search request is finished)
1448 int ldb_extended_default_callback(struct ldb_request *req, struct ldb_reply *ares);
1452 Helper function to build a extended request
1454 \param ret_req the request structure is returned here (talloced on mem_ctx)
1455 \param ldb the context associated with the database (from ldb_init())
1456 \param mem_ctx a talloc memory context (used as parent of ret_req)
1457 \param oid the OID of the extended operation.
1458 \param data a void pointer a the extended operation specific parameters,
1459 it needs to be NULL or a valid talloc pointer! talloc_get_type() will be used on it
1460 \param controls an array of controls
1461 \param context the callback function context
1462 \param the callback function to handle the async replies
1463 \param the parent request if any
1465 \return result code (LDB_SUCCESS on success, or a failure code)
1467 int ldb_build_extended_req(struct ldb_request **ret_req,
1468 struct ldb_context *ldb,
1469 TALLOC_CTX *mem_ctx,
1471 void *data,/* NULL or a valid talloc pointer! talloc_get_type() will be used on it */
1472 struct ldb_control **controls,
1474 ldb_request_callback_t callback,
1475 struct ldb_request *parent);
1478 call an extended operation
1480 \param ldb the context associated with the database (from ldb_init())
1481 \param oid the OID of the extended operation.
1482 \param data a void pointer a the extended operation specific parameters,
1483 it needs to be NULL or a valid talloc pointer! talloc_get_type() will be used on it
1484 \param res the result of the extended operation
1486 \return result code (LDB_SUCCESS if the extended operation returned fine,
1487 otherwise a failure code)
1489 int ldb_extended(struct ldb_context *ldb,
1491 void *data,/* NULL or a valid talloc pointer! talloc_get_type() will be used on it */
1492 struct ldb_result **res);
1495 Obtain current/next database sequence number
1497 int ldb_sequence_number(struct ldb_context *ldb, enum ldb_sequence_type type, uint64_t *seq_num);
1502 int ldb_transaction_start(struct ldb_context *ldb);
1505 first phase of two phase commit
1507 int ldb_transaction_prepare_commit(struct ldb_context *ldb);
1510 commit a transaction
1512 int ldb_transaction_commit(struct ldb_context *ldb);
1515 cancel a transaction
1517 int ldb_transaction_cancel(struct ldb_context *ldb);
1520 cancel a transaction with no error if no transaction is pending
1521 used when we fork() to clear any parent transactions
1523 int ldb_transaction_cancel_noerr(struct ldb_context *ldb);
1527 return extended error information from the last call
1529 const char *ldb_errstring(struct ldb_context *ldb);
1532 return a string explaining what a ldb error constant meancs
1534 const char *ldb_strerror(int ldb_err);
1537 setup the default utf8 functions
1538 FIXME: these functions do not yet handle utf8
1540 void ldb_set_utf8_default(struct ldb_context *ldb);
1545 \param ldb the ldb context
1546 \param mem_ctx the memory context to allocate the result string
1548 \param s the string that is to be folded
1549 \return a copy of the string, converted to upper case
1551 \note The default function is not yet UTF8 aware. Provide your own
1552 set of functions through ldb_set_utf8_fns()
1554 char *ldb_casefold(struct ldb_context *ldb, TALLOC_CTX *mem_ctx, const char *s, size_t n);
1557 Check the attribute name is valid according to rfc2251
1558 \param s the string to check
1560 \return 1 if the name is ok
1562 int ldb_valid_attr_name(const char *s);
1565 ldif manipulation functions
1569 Write an LDIF message
1571 This function writes an LDIF message using a caller supplied write
1574 \param ldb the ldb context (from ldb_init())
1575 \param fprintf_fn a function pointer for the write function. This must take
1576 a private data pointer, followed by a format string, and then a variable argument
1578 \param private_data pointer that will be provided back to the write
1579 function. This is useful for maintaining state or context.
1580 \param ldif the message to write out
1582 \return the total number of bytes written, or an error code as returned
1583 from the write function.
1585 \sa ldb_ldif_write_file for a more convenient way to write to a
1588 \sa ldb_ldif_read for the reader equivalent to this function.
1590 int ldb_ldif_write(struct ldb_context *ldb,
1591 int (*fprintf_fn)(void *, const char *, ...) PRINTF_ATTRIBUTE(2,3),
1593 const struct ldb_ldif *ldif);
1596 Clean up an LDIF message
1598 This function cleans up a LDIF message read using ldb_ldif_read()
1599 or related functions (such as ldb_ldif_read_string() and
1600 ldb_ldif_read_file().
1602 \param ldb the ldb context (from ldb_init())
1603 \param msg the message to clean up and free
1606 void ldb_ldif_read_free(struct ldb_context *ldb, struct ldb_ldif *msg);
1609 Read an LDIF message
1611 This function creates an LDIF message using a caller supplied read
1614 \param ldb the ldb context (from ldb_init())
1615 \param fgetc_fn a function pointer for the read function. This must
1616 take a private data pointer, and must return a pointer to an
1617 integer corresponding to the next byte read (or EOF if there is no
1618 more data to be read).
1619 \param private_data pointer that will be provided back to the read
1620 function. This is udeful for maintaining state or context.
1622 \return the LDIF message that has been read in
1624 \note You must free the LDIF message when no longer required, using
1625 ldb_ldif_read_free().
1627 \sa ldb_ldif_read_file for a more convenient way to read from a
1630 \sa ldb_ldif_read_string for a more convenient way to read from a
1631 string (char array).
1633 \sa ldb_ldif_write for the writer equivalent to this function.
1635 struct ldb_ldif *ldb_ldif_read(struct ldb_context *ldb,
1636 int (*fgetc_fn)(void *), void *private_data);
1639 Read an LDIF message from a file
1641 This function reads the next LDIF message from the contents of a
1642 file stream. If you want to get all of the LDIF messages, you will
1643 need to repeatedly call this function, until it returns NULL.
1645 \param ldb the ldb context (from ldb_init())
1646 \param f the file stream to read from (typically from fdopen())
1648 \sa ldb_ldif_read_string for an equivalent function that will read
1649 from a string (char array).
1651 \sa ldb_ldif_write_file for the writer equivalent to this function.
1654 struct ldb_ldif *ldb_ldif_read_file(struct ldb_context *ldb, FILE *f);
1657 Read an LDIF message from a string
1659 This function reads the next LDIF message from the contents of a char
1660 array. If you want to get all of the LDIF messages, you will need
1661 to repeatedly call this function, until it returns NULL.
1663 \param ldb the ldb context (from ldb_init())
1664 \param s pointer to the char array to read from
1666 \sa ldb_ldif_read_file for an equivalent function that will read
1669 \sa ldb_ldif_write for a more general (arbitrary read function)
1670 version of this function.
1672 struct ldb_ldif *ldb_ldif_read_string(struct ldb_context *ldb, const char **s);
1675 Parse a modrdn LDIF message from a struct ldb_message
1677 \param ldb the ldb context (from ldb_init())
1678 \param ldif the preparsed LDIF chunk (from ldb_ldif_read())
1680 \param mem_ctx the memory context that's used for return values
1682 \param olddn the old dn as struct ldb_dn, if not needed pass NULL
1683 \param newrdn the new rdn as struct ldb_dn, if not needed pass NULL
1684 \param deleteoldrdn the deleteoldrdn value as bool, if not needed pass NULL
1685 \param newsuperior the newsuperior dn as struct ldb_dn, if not needed pass NULL
1686 *newsuperior can be NULL as it is optional in the LDIF
1687 \param newdn the full constructed new dn as struct ldb_dn, if not needed pass NULL
1690 int ldb_ldif_parse_modrdn(struct ldb_context *ldb,
1691 const struct ldb_ldif *ldif,
1692 TALLOC_CTX *mem_ctx,
1693 struct ldb_dn **olddn,
1694 struct ldb_dn **newrdn,
1696 struct ldb_dn **newsuperior,
1697 struct ldb_dn **newdn);
1700 Write an LDIF message to a file
1702 \param ldb the ldb context (from ldb_init())
1703 \param f the file stream to write to (typically from fdopen())
1704 \param msg the message to write out
1706 \return the total number of bytes written, or a negative error code
1708 \sa ldb_ldif_read_file for the reader equivalent to this function.
1710 int ldb_ldif_write_file(struct ldb_context *ldb, FILE *f, const struct ldb_ldif *msg);
1713 Write an LDIF message to a string
1715 \param ldb the ldb context (from ldb_init())
1716 \param mem_ctx the talloc context on which to attach the string)
1717 \param msg the message to write out
1719 \return the string containing the LDIF, or NULL on error
1721 \sa ldb_ldif_read_string for the reader equivalent to this function.
1723 char * ldb_ldif_write_string(struct ldb_context *ldb, TALLOC_CTX *mem_ctx,
1724 const struct ldb_ldif *msg);
1728 Produce a string form of an ldb message
1730 convenient function to turn a ldb_message into a string. Useful for
1733 char *ldb_ldif_message_string(struct ldb_context *ldb, TALLOC_CTX *mem_ctx,
1734 enum ldb_changetype changetype,
1735 const struct ldb_message *msg);
1739 Base64 encode a buffer
1741 \param mem_ctx the memory context that the result is allocated
1743 \param buf pointer to the array that is to be encoded
1744 \param len the number of elements in the array to be encoded
1746 \return pointer to an array containing the encoded data
1748 \note The caller is responsible for freeing the result
1750 char *ldb_base64_encode(TALLOC_CTX *mem_ctx, const char *buf, int len);
1753 Base64 decode a buffer
1755 This function decodes a base64 encoded string in place.
1757 \param s the string to decode.
1759 \return the length of the returned (decoded) string.
1761 \note the string is null terminated, but the null terminator is not
1762 included in the length.
1764 int ldb_base64_decode(char *s);
1766 /* The following definitions come from lib/ldb/common/ldb_dn.c */
1769 Get the linear form of a DN (without any extended components)
1771 \param dn The DN to linearize
1774 const char *ldb_dn_get_linearized(struct ldb_dn *dn);
1777 Allocate a copy of the linear form of a DN (without any extended components) onto the supplied memory context
1779 \param dn The DN to linearize
1780 \param mem_ctx TALLOC context to return result on
1783 char *ldb_dn_alloc_linearized(TALLOC_CTX *mem_ctx, struct ldb_dn *dn);
1786 Get the linear form of a DN (with any extended components)
1788 \param mem_ctx TALLOC context to return result on
1789 \param dn The DN to linearize
1790 \param mode Style of extended DN to return (0 is HEX representation of binary form, 1 is a string form)
1792 char *ldb_dn_get_extended_linearized(TALLOC_CTX *mem_ctx, struct ldb_dn *dn, int mode);
1793 const struct ldb_val *ldb_dn_get_extended_component(struct ldb_dn *dn, const char *name);
1794 int ldb_dn_set_extended_component(struct ldb_dn *dn, const char *name, const struct ldb_val *val);
1795 void ldb_dn_extended_filter(struct ldb_dn *dn, const char * const *accept_list);
1796 void ldb_dn_remove_extended_components(struct ldb_dn *dn);
1797 bool ldb_dn_has_extended(struct ldb_dn *dn);
1799 int ldb_dn_extended_add_syntax(struct ldb_context *ldb,
1801 const struct ldb_dn_extended_syntax *syntax);
1804 Allocate a new DN from a string
1806 \param mem_ctx TALLOC context to return resulting ldb_dn structure on
1807 \param dn The new DN
1809 \note The DN will not be parsed at this time. Use ldb_dn_validate to tell if the DN is syntacticly correct
1812 struct ldb_dn *ldb_dn_new(TALLOC_CTX *mem_ctx, struct ldb_context *ldb, const char *dn);
1814 Allocate a new DN from a printf style format string and arguments
1816 \param mem_ctx TALLOC context to return resulting ldb_dn structure on
1817 \param new_fms The new DN as a format string (plus arguments)
1819 \note The DN will not be parsed at this time. Use ldb_dn_validate to tell if the DN is syntacticly correct
1822 struct ldb_dn *ldb_dn_new_fmt(TALLOC_CTX *mem_ctx, struct ldb_context *ldb, const char *new_fmt, ...) PRINTF_ATTRIBUTE(3,4);
1824 Allocate a new DN from a struct ldb_val (useful to avoid buffer overrun)
1826 \param mem_ctx TALLOC context to return resulting ldb_dn structure on
1827 \param dn The new DN
1829 \note The DN will not be parsed at this time. Use ldb_dn_validate to tell if the DN is syntacticly correct
1832 struct ldb_dn *ldb_dn_from_ldb_val(TALLOC_CTX *mem_ctx, struct ldb_context *ldb, const struct ldb_val *strdn);
1835 Determine if this DN is syntactically valid
1837 \param dn The DN to validate
1840 bool ldb_dn_validate(struct ldb_dn *dn);
1842 char *ldb_dn_escape_value(TALLOC_CTX *mem_ctx, struct ldb_val value);
1843 const char *ldb_dn_get_casefold(struct ldb_dn *dn);
1844 char *ldb_dn_alloc_casefold(TALLOC_CTX *mem_ctx, struct ldb_dn *dn);
1846 int ldb_dn_compare_base(struct ldb_dn *base, struct ldb_dn *dn);
1847 int ldb_dn_compare(struct ldb_dn *edn0, struct ldb_dn *edn1);
1849 bool ldb_dn_add_base(struct ldb_dn *dn, struct ldb_dn *base);
1850 bool ldb_dn_add_base_fmt(struct ldb_dn *dn, const char *base_fmt, ...) PRINTF_ATTRIBUTE(2,3);
1851 bool ldb_dn_add_child(struct ldb_dn *dn, struct ldb_dn *child);
1852 bool ldb_dn_add_child_fmt(struct ldb_dn *dn, const char *child_fmt, ...) PRINTF_ATTRIBUTE(2,3);
1853 bool ldb_dn_remove_base_components(struct ldb_dn *dn, unsigned int num);
1854 bool ldb_dn_remove_child_components(struct ldb_dn *dn, unsigned int num);
1856 struct ldb_dn *ldb_dn_copy(TALLOC_CTX *mem_ctx, struct ldb_dn *dn);
1857 struct ldb_dn *ldb_dn_get_parent(TALLOC_CTX *mem_ctx, struct ldb_dn *dn);
1858 char *ldb_dn_canonical_string(TALLOC_CTX *mem_ctx, struct ldb_dn *dn);
1859 char *ldb_dn_canonical_ex_string(TALLOC_CTX *mem_ctx, struct ldb_dn *dn);
1860 int ldb_dn_get_comp_num(struct ldb_dn *dn);
1861 int ldb_dn_get_extended_comp_num(struct ldb_dn *dn);
1862 const char *ldb_dn_get_component_name(struct ldb_dn *dn, unsigned int num);
1863 const struct ldb_val *ldb_dn_get_component_val(struct ldb_dn *dn, unsigned int num);
1864 const char *ldb_dn_get_rdn_name(struct ldb_dn *dn);
1865 const struct ldb_val *ldb_dn_get_rdn_val(struct ldb_dn *dn);
1866 int ldb_dn_set_component(struct ldb_dn *dn, int num, const char *name, const struct ldb_val val);
1868 bool ldb_dn_is_valid(struct ldb_dn *dn);
1869 bool ldb_dn_is_special(struct ldb_dn *dn);
1870 bool ldb_dn_check_special(struct ldb_dn *dn, const char *check);
1871 bool ldb_dn_is_null(struct ldb_dn *dn);
1872 int ldb_dn_update_components(struct ldb_dn *dn, const struct ldb_dn *ref_dn);
1876 Compare two attributes
1878 This function compares to attribute names. Note that this is a
1879 case-insensitive comparison.
1881 \param a the first attribute name to compare
1882 \param b the second attribute name to compare
1884 \return 0 if the attribute names are the same, or only differ in
1885 case; non-zero if there are any differences
1887 attribute names are restricted by rfc2251 so using
1888 strcasecmp and toupper here is ok.
1891 #define ldb_attr_cmp(a, b) strcasecmp(a, b)
1892 char *ldb_attr_casefold(TALLOC_CTX *mem_ctx, const char *s);
1893 int ldb_attr_dn(const char *attr);
1896 Create an empty message
1898 \param mem_ctx the memory context to create in. You can pass NULL
1899 to get the top level context, however the ldb context (from
1900 ldb_init()) may be a better choice
1902 struct ldb_message *ldb_msg_new(TALLOC_CTX *mem_ctx);
1905 Find an element within an message
1907 struct ldb_message_element *ldb_msg_find_element(const struct ldb_message *msg,
1908 const char *attr_name);
1911 Compare two ldb_val values
1913 \param v1 first ldb_val structure to be tested
1914 \param v2 second ldb_val structure to be tested
1916 \return 1 for a match, 0 if there is any difference
1918 int ldb_val_equal_exact(const struct ldb_val *v1, const struct ldb_val *v2);
1921 find a value within an ldb_message_element
1923 \param el the element to search
1924 \param val the value to search for
1926 \note This search is case sensitive
1928 struct ldb_val *ldb_msg_find_val(const struct ldb_message_element *el,
1929 struct ldb_val *val);
1932 add a new empty element to a ldb_message
1934 int ldb_msg_add_empty(struct ldb_message *msg,
1935 const char *attr_name,
1937 struct ldb_message_element **return_el);
1940 add a element to a ldb_message
1942 int ldb_msg_add(struct ldb_message *msg,
1943 const struct ldb_message_element *el,
1945 int ldb_msg_add_value(struct ldb_message *msg,
1946 const char *attr_name,
1947 const struct ldb_val *val,
1948 struct ldb_message_element **return_el);
1949 int ldb_msg_add_steal_value(struct ldb_message *msg,
1950 const char *attr_name,
1951 struct ldb_val *val);
1952 int ldb_msg_add_steal_string(struct ldb_message *msg,
1953 const char *attr_name, char *str);
1954 int ldb_msg_add_string(struct ldb_message *msg,
1955 const char *attr_name, const char *str);
1956 int ldb_msg_add_linearized_dn(struct ldb_message *msg, const char *attr_name,
1958 int ldb_msg_add_fmt(struct ldb_message *msg,
1959 const char *attr_name, const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1962 compare two message elements - return 0 on match
1964 int ldb_msg_element_compare(struct ldb_message_element *el1,
1965 struct ldb_message_element *el2);
1966 int ldb_msg_element_compare_name(struct ldb_message_element *el1,
1967 struct ldb_message_element *el2);
1970 Find elements in a message.
1972 This function finds elements and converts to a specific type, with
1973 a give default value if not found. Assumes that elements are
1976 const struct ldb_val *ldb_msg_find_ldb_val(const struct ldb_message *msg, const char *attr_name);
1977 int ldb_msg_find_attr_as_int(const struct ldb_message *msg,
1978 const char *attr_name,
1980 unsigned int ldb_msg_find_attr_as_uint(const struct ldb_message *msg,
1981 const char *attr_name,
1982 unsigned int default_value);
1983 int64_t ldb_msg_find_attr_as_int64(const struct ldb_message *msg,
1984 const char *attr_name,
1985 int64_t default_value);
1986 uint64_t ldb_msg_find_attr_as_uint64(const struct ldb_message *msg,
1987 const char *attr_name,
1988 uint64_t default_value);
1989 double ldb_msg_find_attr_as_double(const struct ldb_message *msg,
1990 const char *attr_name,
1991 double default_value);
1992 int ldb_msg_find_attr_as_bool(const struct ldb_message *msg,
1993 const char *attr_name,
1995 const char *ldb_msg_find_attr_as_string(const struct ldb_message *msg,
1996 const char *attr_name,
1997 const char *default_value);
1999 struct ldb_dn *ldb_msg_find_attr_as_dn(struct ldb_context *ldb,
2000 TALLOC_CTX *mem_ctx,
2001 const struct ldb_message *msg,
2002 const char *attr_name);
2004 void ldb_msg_sort_elements(struct ldb_message *msg);
2006 struct ldb_message *ldb_msg_copy_shallow(TALLOC_CTX *mem_ctx,
2007 const struct ldb_message *msg);
2008 struct ldb_message *ldb_msg_copy(TALLOC_CTX *mem_ctx,
2009 const struct ldb_message *msg);
2012 * ldb_msg_canonicalize() is now depreciated
2013 * Please use ldb_msg_normalize() instead
2015 * NOTE: Returned ldb_message object is allocated
2016 * into *ldb's context. Callers are recommended
2017 * to steal the returned object into a TALLOC_CTX
2018 * with short lifetime.
2020 struct ldb_message *ldb_msg_canonicalize(struct ldb_context *ldb,
2021 const struct ldb_message *msg) _DEPRECATED_;
2023 int ldb_msg_normalize(struct ldb_context *ldb,
2024 TALLOC_CTX *mem_ctx,
2025 const struct ldb_message *msg,
2026 struct ldb_message **_msg_out);
2030 * ldb_msg_diff() is now depreciated
2031 * Please use ldb_msg_difference() instead
2033 * NOTE: Returned ldb_message object is allocated
2034 * into *ldb's context. Callers are recommended
2035 * to steal the returned object into a TALLOC_CTX
2036 * with short lifetime.
2038 struct ldb_message *ldb_msg_diff(struct ldb_context *ldb,
2039 struct ldb_message *msg1,
2040 struct ldb_message *msg2) _DEPRECATED_;
2043 * return a ldb_message representing the differences between msg1 and msg2.
2044 * If you then use this in a ldb_modify() call,
2045 * it can be used to save edits to a message
2047 * Result message is constructed as follows:
2048 * - LDB_FLAG_MOD_ADD - elements found only in msg2
2049 * - LDB_FLAG_MOD_REPLACE - elements in msg2 that have
2050 * different value in msg1
2051 * Value for msg2 element is used
2052 * - LDB_FLAG_MOD_DELETE - elements found only in msg2
2054 * @return LDB_SUCCESS or LDB_ERR_OPERATIONS_ERROR
2056 int ldb_msg_difference(struct ldb_context *ldb,
2057 TALLOC_CTX *mem_ctx,
2058 struct ldb_message *msg1,
2059 struct ldb_message *msg2,
2060 struct ldb_message **_msg_out);
2063 Tries to find a certain string attribute in a message
2065 \param msg the message to check
2066 \param name attribute name
2067 \param value attribute value
2069 \return 1 on match and 0 otherwise.
2071 int ldb_msg_check_string_attribute(const struct ldb_message *msg,
2076 Integrity check an ldb_message
2078 This function performs basic sanity / integrity checks on an
2081 \param ldb context in which to perform the checks
2082 \param msg the message to check
2084 \return LDB_SUCCESS if the message is OK, or a non-zero error code
2085 (one of LDB_ERR_INVALID_DN_SYNTAX, LDB_ERR_ENTRY_ALREADY_EXISTS or
2086 LDB_ERR_INVALID_ATTRIBUTE_SYNTAX) if there is a problem with a
2089 int ldb_msg_sanity_check(struct ldb_context *ldb,
2090 const struct ldb_message *msg);
2093 Duplicate an ldb_val structure
2095 This function copies an ldb value structure.
2097 \param mem_ctx the memory context that the duplicated value will be
2099 \param v the ldb_val to be duplicated.
2101 \return the duplicated ldb_val structure.
2103 struct ldb_val ldb_val_dup(TALLOC_CTX *mem_ctx, const struct ldb_val *v);
2106 this allows the user to set a debug function for error reporting
2108 int ldb_set_debug(struct ldb_context *ldb,
2109 void (*debug)(void *context, enum ldb_debug_level level,
2110 const char *fmt, va_list ap) PRINTF_ATTRIBUTE(3,0),
2114 this allows the user to set custom utf8 function for error reporting
2116 void ldb_set_utf8_fns(struct ldb_context *ldb,
2118 char *(*casefold)(void *, void *, const char *, size_t n));
2121 this sets up debug to print messages on stderr
2123 int ldb_set_debug_stderr(struct ldb_context *ldb);
2125 /* control backend specific opaque values */
2126 int ldb_set_opaque(struct ldb_context *ldb, const char *name, void *value);
2127 void *ldb_get_opaque(struct ldb_context *ldb, const char *name);
2129 const char **ldb_attr_list_copy(TALLOC_CTX *mem_ctx, const char * const *attrs);
2130 const char **ldb_attr_list_copy_add(TALLOC_CTX *mem_ctx, const char * const *attrs, const char *new_attr);
2131 int ldb_attr_in_list(const char * const *attrs, const char *attr);
2133 int ldb_msg_rename_attr(struct ldb_message *msg, const char *attr, const char *replace);
2134 int ldb_msg_copy_attr(struct ldb_message *msg, const char *attr, const char *replace);
2135 void ldb_msg_remove_attr(struct ldb_message *msg, const char *attr);
2136 void ldb_msg_remove_element(struct ldb_message *msg, struct ldb_message_element *el);
2139 void ldb_parse_tree_attr_replace(struct ldb_parse_tree *tree,
2141 const char *replace);
2144 shallow copy a tree - copying only the elements array so that the caller
2145 can safely add new elements without changing the message
2147 struct ldb_parse_tree *ldb_parse_tree_copy_shallow(TALLOC_CTX *mem_ctx,
2148 const struct ldb_parse_tree *ot);
2151 Convert a time structure to a string
2153 This function converts a time_t structure to an LDAP formatted
2154 GeneralizedTime string.
2156 \param mem_ctx the memory context to allocate the return string in
2157 \param t the time structure to convert
2159 \return the formatted string, or NULL if the time structure could
2162 char *ldb_timestring(TALLOC_CTX *mem_ctx, time_t t);
2165 Convert a string to a time structure
2167 This function converts an LDAP formatted GeneralizedTime string
2168 to a time_t structure.
2170 \param s the string to convert
2172 \return the time structure, or 0 if the string cannot be converted
2174 time_t ldb_string_to_time(const char *s);
2177 convert a LDAP GeneralizedTime string in ldb_val format to a
2180 int ldb_val_to_time(const struct ldb_val *v, time_t *t);
2183 Convert a time structure to a string
2185 This function converts a time_t structure to an LDAP formatted
2188 \param mem_ctx the memory context to allocate the return string in
2189 \param t the time structure to convert
2191 \return the formatted string, or NULL if the time structure could
2194 char *ldb_timestring_utc(TALLOC_CTX *mem_ctx, time_t t);
2197 Convert a string to a time structure
2199 This function converts an LDAP formatted UTCTime string
2200 to a time_t structure.
2202 \param s the string to convert
2204 \return the time structure, or 0 if the string cannot be converted
2206 time_t ldb_string_utc_to_time(const char *s);
2209 void ldb_qsort (void *const pbase, size_t total_elems, size_t size, void *opaque, ldb_qsort_cmp_fn_t cmp);
2211 #ifndef discard_const
2212 #define discard_const(ptr) ((void *)((uintptr_t)(ptr)))
2216 a wrapper around ldb_qsort() that ensures the comparison function is
2217 type safe. This will produce a compilation warning if the types
2220 #define LDB_TYPESAFE_QSORT(base, numel, opaque, comparison) \
2223 ldb_qsort(base, numel, sizeof((base)[0]), discard_const(opaque), (ldb_qsort_cmp_fn_t)comparison); \
2224 comparison(&((base)[0]), &((base)[1]), opaque); \
2228 /* allow ldb to also call TYPESAFE_QSORT() */
2229 #ifndef TYPESAFE_QSORT
2230 #define TYPESAFE_QSORT(base, numel, comparison) \
2233 qsort(base, numel, sizeof((base)[0]), (int (*)(const void *, const void *))comparison); \
2234 comparison(&((base)[0]), &((base)[1])); \
2242 Convert a control into its string representation.
2244 \param mem_ctx TALLOC context to return result on, and to allocate error_string on
2245 \param control A struct ldb_control to convert
2247 \return string representation of the control
2249 char* ldb_control_to_string(TALLOC_CTX *mem_ctx, const struct ldb_control *control);
2251 Convert a string representing a control into a ldb_control structure
2253 \param ldb LDB context
2254 \param mem_ctx TALLOC context to return result on, and to allocate error_string on
2255 \param control_strings A string-formatted control
2257 \return a ldb_control element
2259 struct ldb_control *ldb_parse_control_from_string(struct ldb_context *ldb, TALLOC_CTX *mem_ctx, const char *control_strings);
2261 Convert an array of string represention of a control into an array of ldb_control structures
2263 \param ldb LDB context
2264 \param mem_ctx TALLOC context to return result on, and to allocate error_string on
2265 \param control_strings Array of string-formatted controls
2267 \return array of ldb_control elements
2269 struct ldb_control **ldb_parse_control_strings(struct ldb_context *ldb, TALLOC_CTX *mem_ctx, const char **control_strings);
2272 return the ldb flags
2274 unsigned int ldb_get_flags(struct ldb_context *ldb);
2276 /* set the ldb flags */
2277 void ldb_set_flags(struct ldb_context *ldb, unsigned flags);
2280 struct ldb_dn *ldb_dn_binary_from_ldb_val(TALLOC_CTX *mem_ctx,
2281 struct ldb_context *ldb,
2282 const struct ldb_val *strdn);
2284 int ldb_dn_get_binary(struct ldb_dn *dn, struct ldb_val *val);
2285 int ldb_dn_set_binary(struct ldb_dn *dn, struct ldb_val *val);
2287 /* debugging functions for ldb requests */
2288 void ldb_req_set_location(struct ldb_request *req, const char *location);
2289 const char *ldb_req_location(struct ldb_request *req);
2291 /* set the location marker on a request handle - used for debugging */
2292 #define LDB_REQ_SET_LOCATION(req) ldb_req_set_location(req, __location__)
2295 minimise a DN. The caller must pass in a validated DN.
2297 If the DN has an extended component then only the first extended
2298 component is kept, the DN string is stripped.
2300 The existing dn is modified
2302 bool ldb_dn_minimise(struct ldb_dn *dn);
2305 compare a ldb_val to a string
2307 int ldb_val_string_cmp(const struct ldb_val *v, const char *str);