4 Copyright (C) Andrew Tridgell 2004
5 Copyright (C) Stefan Metzmacher 2004
6 Copyright (C) Simo Sorce 2005
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 2 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, write to the Free Software
24 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
30 * Component: ldb header
32 * Description: defines for base ldb API
34 * Author: Andrew Tridgell
35 * Author: Stefan Metzmacher
39 \file ldb.h Samba's ldb database
41 This header file provides the main API for ldb.
46 /*! \cond DOXYGEN_IGNORE */
51 major restrictions as compared to normal LDAP:
54 - each record must have a unique key field
55 - the key must be representable as a NULL terminated C string and may not
56 contain a comma or braces
58 major restrictions as compared to tdb:
60 - no explicit locking calls
61 UPDATE: we have transactions now, better than locking --SSS.
69 An individual lump of data in a result comes in this format. The
70 pointer will usually be to a UTF-8 string if the application is
71 sensible, but it can be to anything you like, including binary data
72 blobs of arbitrary size.
74 \note the data is null (0x00) terminated, but the length does not
75 include the terminator.
78 uint8_t *data; /*!< result data */
79 size_t length; /*!< length of data */
83 /*! \cond DOXYGEN_IGNORE */
84 #ifndef PRINTF_ATTRIBUTE
85 #define PRINTF_ATTRIBUTE(a,b)
90 internal ldb exploded dn structures
92 struct ldb_dn_component {
99 struct ldb_dn_component *components;
103 There are a number of flags that are used with ldap_modify() in
104 ldb_message_element.flags fields. The LDA_FLAGS_MOD_ADD,
105 LDA_FLAGS_MOD_DELETE and LDA_FLAGS_MOD_REPLACE flags are used in
106 ldap_modify() calls to specify whether attributes are being added,
107 deleted or modified respectively.
109 #define LDB_FLAG_MOD_MASK 0x3
112 Flag value used in ldap_modify() to indicate that attributes are
115 \sa LDB_FLAG_MOD_MASK
117 #define LDB_FLAG_MOD_ADD 1
120 Flag value used in ldap_modify() to indicate that attributes are
123 \sa LDB_FLAG_MOD_MASK
125 #define LDB_FLAG_MOD_REPLACE 2
128 Flag value used in ldap_modify() to indicate that attributes are
131 \sa LDB_FLAG_MOD_MASK
133 #define LDB_FLAG_MOD_DELETE 3
136 OID for logic AND comaprison.
138 This is the well known object ID for a logical AND comparitor.
140 #define LDB_OID_COMPARATOR_AND "1.2.840.113556.1.4.803"
143 OID for logic OR comparison.
145 This is the well known object ID for a logical OR comparitor.
147 #define LDB_OID_COMPARATOR_OR "1.2.840.113556.1.4.804"
150 results are given back as arrays of ldb_message_element
152 struct ldb_message_element {
155 unsigned int num_values;
156 struct ldb_val *values;
161 a ldb_message represents all or part of a record. It can contain an arbitrary
166 unsigned int num_elements;
167 struct ldb_message_element *elements;
168 void *private_data; /* private to the backend */
171 enum ldb_changetype {
172 LDB_CHANGETYPE_NONE=0,
174 LDB_CHANGETYPE_DELETE,
175 LDB_CHANGETYPE_MODIFY
181 This structure contains a LDIF record, as returned from ldif_read()
182 and equivalent functions.
185 enum ldb_changetype changetype; /*!< The type of change */
186 struct ldb_message *msg; /*!< The changes */
189 enum ldb_scope {LDB_SCOPE_DEFAULT=-1,
191 LDB_SCOPE_ONELEVEL=1,
192 LDB_SCOPE_SUBTREE=2};
197 the fuction type for the callback used in traversing the database
199 typedef int (*ldb_traverse_fn)(struct ldb_context *, const struct ldb_message *);
202 /* debugging uses one of the following levels */
203 enum ldb_debug_level {LDB_DEBUG_FATAL, LDB_DEBUG_ERROR,
204 LDB_DEBUG_WARNING, LDB_DEBUG_TRACE};
207 the user can optionally supply a debug function. The function
208 is based on the vfprintf() style of interface, but with the addition
211 struct ldb_debug_ops {
212 void (*debug)(void *context, enum ldb_debug_level level,
213 const char *fmt, va_list ap) PRINTF_ATTRIBUTE(3,0);
218 The user can optionally supply a custom utf8 functions,
219 to handle comparisons and casefolding.
221 struct ldb_utf8_fns {
223 char *(*casefold)(void *context, void *mem_ctx, const char *s);
227 Flag value for database connection mode.
229 If LDB_FLG_RDONLY is used in ldb_connect, then the database will be
230 opened read-only, if possible.
232 #define LDB_FLG_RDONLY 1
235 Flag value for database connection mode.
237 If LDB_FLG_NOSYNC is used in ldb_connect, then the database will be
238 opened without synchronous operations, if possible.
240 #define LDB_FLG_NOSYNC 2
243 Flag value to specify autoreconnect mode.
245 If LDB_FLG_RECONNECT is used in ldb_connect, then the backend will
246 be opened in a way that makes it try to auto reconnect if the
247 connection is dropped (actually make sense only with ldap).
249 #define LDB_FLG_RECONNECT 4
252 structures for ldb_parse_tree handling code
254 enum ldb_parse_op { LDB_OP_AND=1, LDB_OP_OR=2, LDB_OP_NOT=3,
255 LDB_OP_EQUALITY=4, LDB_OP_SUBSTRING=5,
256 LDB_OP_GREATER=6, LDB_OP_LESS=7, LDB_OP_PRESENT=8,
257 LDB_OP_APPROX=9, LDB_OP_EXTENDED=10 };
259 struct ldb_parse_tree {
260 enum ldb_parse_op operation;
263 struct ldb_parse_tree *child;
267 struct ldb_val value;
271 int start_with_wildcard;
272 int end_with_wildcard;
273 struct ldb_val **chunks;
280 struct ldb_val value;
286 struct ldb_val value;
289 unsigned int num_elements;
290 struct ldb_parse_tree **elements;
295 struct ldb_parse_tree *ldb_parse_tree(void *mem_ctx, const char *s);
296 char *ldb_filter_from_tree(void *mem_ctx, struct ldb_parse_tree *tree);
301 This function encodes a binary blob using the encoding rules in RFC
302 2254 (Section 4). This function also escapes any non-printable
305 \param ctx the memory context to allocate the return string in.
306 \param val the (potentially) binary data to be encoded
308 \return the encoded data as a null terminated string
310 \sa <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>.
312 char *ldb_binary_encode(void *ctx, struct ldb_val val);
317 This function encodes a string using the encoding rules in RFC 2254
318 (Section 4). This function also escapes any non-printable
321 \param mem_ctx the memory context to allocate the return string in.
322 \param string the string to be encoded
324 \return the encoded data as a null terminated string
326 \sa <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>.
328 char *ldb_binary_encode_string(void *mem_ctx, const char *string);
331 functions for controlling attribute handling
333 typedef int (*ldb_attr_handler_t)(struct ldb_context *, void *mem_ctx, const struct ldb_val *, struct ldb_val *);
334 typedef int (*ldb_attr_comparison_t)(struct ldb_context *, void *mem_ctx, const struct ldb_val *, const struct ldb_val *);
336 struct ldb_attrib_handler {
339 /* LDB_ATTR_FLAG_* */
342 /* convert from ldif to binary format */
343 ldb_attr_handler_t ldif_read_fn;
345 /* convert from binary to ldif format */
346 ldb_attr_handler_t ldif_write_fn;
348 /* canonicalise a value, for use by indexing and dn construction */
349 ldb_attr_handler_t canonicalise_fn;
351 /* compare two values */
352 ldb_attr_comparison_t comparison_fn;
356 The attribute is not returned by default
358 #define LDB_ATTR_FLAG_HIDDEN (1<<0)
361 The attribute is constructed from other attributes
363 #define LDB_ATTR_FLAG_CONSTRUCTED (1<<1)
366 LDAP attribute syntax for a DN
368 This is the well-known LDAP attribute syntax for a DN.
370 See <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
372 #define LDB_SYNTAX_DN "1.3.6.1.4.1.1466.115.121.1.12"
375 LDAP attribute syntax for a Directory String
377 This is the well-known LDAP attribute syntax for a Directory String.
379 \sa <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
381 #define LDB_SYNTAX_DIRECTORY_STRING "1.3.6.1.4.1.1466.115.121.1.15"
384 LDAP attribute syntax for an integer
386 This is the well-known LDAP attribute syntax for an integer.
388 See <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
390 #define LDB_SYNTAX_INTEGER "1.3.6.1.4.1.1466.115.121.1.27"
393 LDAP attribute syntax for an octet string
395 This is the well-known LDAP attribute syntax for an octet string.
397 See <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
399 #define LDB_SYNTAX_OCTET_STRING "1.3.6.1.4.1.1466.115.121.1.40"
402 LDAP attribute syntax for UTC time.
404 This is the well-known LDAP attribute syntax for a UTC time.
406 See <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
408 #define LDB_SYNTAX_UTC_TIME "1.3.6.1.4.1.1466.115.121.1.53"
410 #define LDB_SYNTAX_OBJECTCLASS "LDB_SYNTAX_OBJECTCLASS"
412 /* sorting helpers */
413 typedef int (*ldb_qsort_cmp_fn_t) (void *v1, void *v2, void *opaque);
416 OID for the paged results control. This control is included in the
417 searchRequest and searchResultDone messages as part of the controls
418 field of the LDAPMessage, as defined in Section 4.1.12 of
421 \sa <a href="http://www.ietf.org/rfc/rfc2696.txt">RFC 2696</a>.
423 #define LDB_CONTROL_PAGED_RESULTS_OID "1.2.840.113556.1.4.319"
426 OID for specifying the returned elements of the ntSecurityDescriptor
428 \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>
430 #define LDB_CONTROL_SD_FLAGS_OID "1.2.840.113556.1.4.801"
433 OID for specifying an advanced scope for the search (one partition)
435 \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>
437 #define LDB_CONTROL_DOMAIN_SCOPE_OID "1.2.840.113556.1.4.1339"
440 OID for specifying an advanced scope for a search
442 \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>
444 #define LDB_CONTROL_SEARCH_OPTIONS_OID "1.2.840.113556.1.4.1340"
449 \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>
451 #define LDB_CONTROL_NOTIFICATION_OID "1.2.840.113556.1.4.528"
454 OID for getting deleted objects
456 \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>
458 #define LDB_CONTROL_SHOW_DELETED_OID "1.2.840.113556.1.4.417"
463 \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>
465 #define LDB_CONTROL_EXTENDED_DN_OID "1.2.840.113556.1.4.529"
468 OID for LDAP server sort result extension.
470 This control is included in the searchRequest message as part of
471 the controls field of the LDAPMessage, as defined in Section 4.1.12
472 of LDAP v3. The controlType is set to
473 "1.2.840.113556.1.4.473". The criticality MAY be either TRUE or
474 FALSE (where absent is also equivalent to FALSE) at the client's
477 \sa <a href="http://www.ietf.org/rfc/rfc2891.txt">RFC 2891</a>.
479 #define LDB_CONTROL_SERVER_SORT_OID "1.2.840.113556.1.4.473"
482 OID for LDAP server sort result response extension.
484 This control is included in the searchResultDone message as part of
485 the controls field of the LDAPMessage, as defined in Section 4.1.12 of
488 \sa <a href="http://www.ietf.org/rfc/rfc2891.txt">RFC 2891</a>.
490 #define LDB_CONTROL_SORT_RESP_OID "1.2.840.113556.1.4.474"
493 OID for LDAP Attribute Scoped Query extension.
495 This control is included in SearchRequest or SearchResponse
496 messages as part of the controls field of the LDAPMessage.
498 #define LDB_CONTROL_ASQ_OID "1.2.840.113556.1.4.1504"
501 OID for LDAP Directory Sync extension.
503 This control is included in SearchRequest or SearchResponse
504 messages as part of the controls field of the LDAPMessage.
506 #define LDB_CONTROL_DIRSYNC_OID "1.2.840.113556.1.4.841"
510 OID for LDAP Virtual List View Request extension.
512 This control is included in SearchRequest messages
513 as part of the controls field of the LDAPMessage.
515 #define LDB_CONTROL_VLV_REQ_OID "2.16.840.1.113730.3.4.9"
518 OID for LDAP Virtual List View Response extension.
520 This control is included in SearchResponse messages
521 as part of the controls field of the LDAPMessage.
523 #define LDB_CONTROL_VLV_RESP_OID "2.16.840.1.113730.3.4.10"
526 OID to let modifies don't give an error when adding an existing
527 attribute with the same value or deleting an nonexisting one attribute
529 \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>
531 #define LDB_CONTROL_PERMISSIVE_MODIFY_OID "1.2.840.113556.1.4.1413"
534 OID for LDAP Extended Operation START_TLS.
536 This Extended operation is used to start a new TLS
537 channel on top of a clear text channel.
539 #define LDB_EXTENDED_START_TLS_OID "1.3.6.1.4.1.1466.20037"
542 OID for LDAP Extended Operation START_TLS.
544 This Extended operation is used to start a new TLS
545 channel on top of a clear text channel.
547 #define LDB_EXTENDED_DYNAMIC_OID "1.3.6.1.4.1.1466.101.119.1"
550 OID for LDAP Extended Operation START_TLS.
552 This Extended operation is used to start a new TLS
553 channel on top of a clear text channel.
555 #define LDB_EXTENDED_FAST_BIND_OID "1.2.840.113556.1.4.1781"
557 struct ldb_sd_flags_control {
559 * request the owner 0x00000001
560 * request the group 0x00000002
561 * request the DACL 0x00000004
562 * request the SACL 0x00000008
564 unsigned secinfo_flags;
567 struct ldb_search_options_control {
569 * DOMAIN_SCOPE 0x00000001
570 * this limits the search to one partition,
571 * and no referrals will be returned.
572 * (Note this doesn't limit the entries by there
573 * objectSid belonging to a domain! Builtin and Foreign Sids
574 * are still returned)
576 * PHANTOM_ROOT 0x00000002
577 * this search on the whole tree on a domain controller
578 * over multiple partitions without referrals.
579 * (This is the default behavior on the Global Catalog Port)
581 unsigned search_options;
584 struct ldb_paged_control {
590 struct ldb_extended_dn_control {
594 struct ldb_server_sort_control {
600 struct ldb_sort_resp_control {
605 struct ldb_asq_control {
607 char *source_attribute;
612 struct ldb_dirsync_control {
619 struct ldb_vlv_req_control {
637 struct ldb_vlv_resp_control {
651 enum ldb_request_type {
658 LDB_REQ_REGISTER_CONTROL,
659 LDB_REQ_REGISTER_PARTITION,
663 enum ldb_reply_type {
683 struct ldb_message **msgs;
685 struct ldb_control **controls;
688 struct ldb_extended {
695 enum ldb_reply_type type;
696 struct ldb_message *message;
697 struct ldb_extended *response;
699 struct ldb_control **controls;
704 enum ldb_state state;
706 struct ldb_module *module;
710 const struct ldb_dn *base;
711 enum ldb_scope scope;
712 const struct ldb_parse_tree *tree;
713 const char * const *attrs;
714 struct ldb_result *res;
718 const struct ldb_message *message;
722 const struct ldb_message *message;
726 const struct ldb_dn *dn;
730 const struct ldb_dn *olddn;
731 const struct ldb_dn *newdn;
734 struct ldb_register_control {
738 struct ldb_register_partition {
739 const struct ldb_dn *dn;
742 struct ldb_sequence_number {
746 typedef int (*ldb_request_callback_t)(struct ldb_context *, void *, struct ldb_reply *);
749 enum ldb_request_type operation;
752 struct ldb_search search;
754 struct ldb_modify mod;
755 struct ldb_delete del;
756 struct ldb_rename rename;
757 struct ldb_register_control reg_control;
758 struct ldb_register_partition reg_partition;
759 struct ldb_sequence_number seq_num;
762 struct ldb_control **controls;
765 ldb_request_callback_t callback;
769 struct ldb_handle *handle;
772 int ldb_request(struct ldb_context *ldb, struct ldb_request *request);
774 int ldb_wait(struct ldb_handle *handle, enum ldb_wait_type type);
776 int ldb_set_timeout(struct ldb_context *ldb, struct ldb_request *req, int timeout);
777 int ldb_set_timeout_from_prev_req(struct ldb_context *ldb, struct ldb_request *oldreq, struct ldb_request *newreq);
780 Initialise ldbs' global information
782 This is required before any other LDB call
784 \return 0 if initialisation succeeded, -1 otherwise
786 int ldb_global_init(void);
789 Initialise an ldb context
791 This is required before any other LDB call.
793 \param mem_ctx pointer to a talloc memory context. Pass NULL if there is
794 no suitable context available.
796 \return pointer to ldb_context that should be free'd (using talloc_free())
797 at the end of the program.
799 struct ldb_context *ldb_init(void *mem_ctx);
802 Connect to a database.
804 This is typically called soon after ldb_init(), and is required prior to
805 any search or database modification operations.
807 The URL can be one of the following forms:
813 \param ldb the context associated with the database (from ldb_init())
814 \param url the URL of the database to connect to, as noted above
815 \param flags a combination of LDB_FLG_* to modify the connection behaviour
816 \param options backend specific options - passed uninterpreted to the backend
818 \return result code (LDB_SUCCESS on success, or a failure code)
820 \note It is an error to connect to a database that does not exist in readonly mode
821 (that is, with LDB_FLG_RDONLY). However in read-write mode, the database will be
822 created if it does not exist.
824 int ldb_connect(struct ldb_context *ldb, const char *url, unsigned int flags, const char *options[]);
827 return an automatic baseDN from the defaultNamingContext of the rootDSE
828 This value have been set in an opaque pointer at connection time
830 const struct ldb_dn *ldb_get_default_basedn(struct ldb_context *ldb);
835 This function searches the database, and returns
836 records that match an LDAP-like search expression
838 \param ldb the context associated with the database (from ldb_init())
839 \param base the Base Distinguished Name for the query (pass NULL for root DN)
840 \param scope the search scope for the query
841 \param expression the search expression to use for this query
842 \param attrs the search attributes for the query (pass NULL if none required)
843 \param res the return result
845 \return result code (LDB_SUCCESS on success, or a failure code)
847 \note use talloc_free() to free the ldb_result returned
849 int ldb_search(struct ldb_context *ldb,
850 const struct ldb_dn *base,
851 enum ldb_scope scope,
852 const char *expression,
853 const char * const *attrs, struct ldb_result **res);
856 like ldb_search() but takes a parse tree
858 int ldb_search_bytree(struct ldb_context *ldb,
859 const struct ldb_dn *base,
860 enum ldb_scope scope,
861 struct ldb_parse_tree *tree,
862 const char * const *attrs, struct ldb_result **res);
865 Add a record to the database.
867 This function adds a record to the database. This function will fail
868 if a record with the specified class and key already exists in the
871 \param ldb the context associated with the database (from
873 \param message the message containing the record to add.
875 \return result code (LDB_SUCCESS if the record was added, otherwise
878 int ldb_add(struct ldb_context *ldb,
879 const struct ldb_message *message);
882 Modify the specified attributes of a record
884 This function modifies a record that is in the database.
886 \param ldb the context associated with the database (from
888 \param message the message containing the changes required.
890 \return result code (LDB_SUCCESS if the record was modified as
891 requested, otherwise a failure code)
893 int ldb_modify(struct ldb_context *ldb,
894 const struct ldb_message *message);
897 Rename a record in the database
899 This function renames a record in the database.
901 \param ldb the context associated with the database (from
903 \param olddn the DN for the record to be renamed.
904 \param newdn the new DN
906 \return result code (LDB_SUCCESS if the record was renamed as
907 requested, otherwise a failure code)
909 int ldb_rename(struct ldb_context *ldb, const struct ldb_dn *olddn, const struct ldb_dn *newdn);
912 Delete a record from the database
914 This function deletes a record from the database.
916 \param ldb the context associated with the database (from
918 \param dn the DN for the record to be deleted.
920 \return result code (LDB_SUCCESS if the record was deleted,
921 otherwise a failure code)
923 int ldb_delete(struct ldb_context *ldb, const struct ldb_dn *dn);
926 Obtain current database sequence number
928 int ldb_sequence_number(struct ldb_context *ldb, uint64_t *seq_num);
933 int ldb_transaction_start(struct ldb_context *ldb);
938 int ldb_transaction_commit(struct ldb_context *ldb);
943 int ldb_transaction_cancel(struct ldb_context *ldb);
947 return extended error information from the last call
949 const char *ldb_errstring(struct ldb_context *ldb);
952 return a string explaining what a ldb error constant meancs
954 const char *ldb_strerror(int ldb_err);
957 setup the default utf8 functions
958 FIXME: these functions do not yet handle utf8
960 void ldb_set_utf8_default(struct ldb_context *ldb);
965 \param ldb the ldb context
966 \param mem_ctx the memory context to allocate the result string
968 \param s the string that is to be folded
969 \return a copy of the string, converted to upper case
971 \note The default function is not yet UTF8 aware. Provide your own
972 set of functions through ldb_set_utf8_fns()
974 char *ldb_casefold(struct ldb_context *ldb, void *mem_ctx, const char *s);
977 Check the attribute name is valid according to rfc2251
978 \param s tthe string to check
980 \return 1 if the name is ok
982 int ldb_valid_attr_name(const char *s);
985 ldif manipulation functions
988 Write an LDIF message
990 This function writes an LDIF message using a caller supplied write
993 \param ldb the ldb context (from ldb_init())
994 \param fprintf_fn a function pointer for the write function. This must take
995 a private data pointer, followed by a format string, and then a variable argument
997 \param private_data pointer that will be provided back to the write
998 function. This is useful for maintaining state or context.
999 \param ldif the message to write out
1001 \return the total number of bytes written, or an error code as returned
1002 from the write function.
1004 \sa ldb_ldif_write_file for a more convenient way to write to a
1007 \sa ldb_ldif_read for the reader equivalent to this function.
1009 int ldb_ldif_write(struct ldb_context *ldb,
1010 int (*fprintf_fn)(void *, const char *, ...) PRINTF_ATTRIBUTE(2,3),
1012 const struct ldb_ldif *ldif);
1015 Clean up an LDIF message
1017 This function cleans up a LDIF message read using ldb_ldif_read()
1018 or related functions (such as ldb_ldif_read_string() and
1019 ldb_ldif_read_file().
1021 \param ldb the ldb context (from ldb_init())
1022 \param msg the message to clean up and free
1025 void ldb_ldif_read_free(struct ldb_context *ldb, struct ldb_ldif *msg);
1028 Read an LDIF message
1030 This function creates an LDIF message using a caller supplied read
1033 \param ldb the ldb context (from ldb_init())
1034 \param fgetc_fn a function pointer for the read function. This must
1035 take a private data pointer, and must return a pointer to an
1036 integer corresponding to the next byte read (or EOF if there is no
1037 more data to be read).
1038 \param private_data pointer that will be provided back to the read
1039 function. This is udeful for maintaining state or context.
1041 \return the LDIF message that has been read in
1043 \note You must free the LDIF message when no longer required, using
1044 ldb_ldif_read_free().
1046 \sa ldb_ldif_read_file for a more convenient way to read from a
1049 \sa ldb_ldif_read_string for a more convenient way to read from a
1050 string (char array).
1052 \sa ldb_ldif_write for the writer equivalent to this function.
1054 struct ldb_ldif *ldb_ldif_read(struct ldb_context *ldb,
1055 int (*fgetc_fn)(void *), void *private_data);
1058 Read an LDIF message from a file
1060 This function reads the next LDIF message from the contents of a
1061 file stream. If you want to get all of the LDIF messages, you will
1062 need to repeatedly call this function, until it returns NULL.
1064 \param ldb the ldb context (from ldb_init())
1065 \param f the file stream to read from (typically from fdopen())
1067 \sa ldb_ldif_read_string for an equivalent function that will read
1068 from a string (char array).
1070 \sa ldb_ldif_write_file for the writer equivalent to this function.
1073 struct ldb_ldif *ldb_ldif_read_file(struct ldb_context *ldb, FILE *f);
1076 Read an LDIF message from a string
1078 This function reads the next LDIF message from the contents of a char
1079 array. If you want to get all of the LDIF messages, you will need
1080 to repeatedly call this function, until it returns NULL.
1082 \param ldb the ldb context (from ldb_init())
1083 \param s pointer to the char array to read from
1085 \sa ldb_ldif_read_file for an equivalent function that will read
1088 \sa ldb_ldif_write for a more general (arbitrary read function)
1089 version of this function.
1091 struct ldb_ldif *ldb_ldif_read_string(struct ldb_context *ldb, const char **s);
1094 Write an LDIF message to a file
1096 \param ldb the ldb context (from ldb_init())
1097 \param f the file stream to write to (typically from fdopen())
1098 \param msg the message to write out
1100 \return the total number of bytes written, or a negative error code
1102 \sa ldb_ldif_read_file for the reader equivalent to this function.
1104 int ldb_ldif_write_file(struct ldb_context *ldb, FILE *f, const struct ldb_ldif *msg);
1107 Base64 encode a buffer
1109 \param mem_ctx the memory context that the result is allocated
1111 \param buf pointer to the array that is to be encoded
1112 \param len the number of elements in the array to be encoded
1114 \return pointer to an array containing the encoded data
1116 \note The caller is responsible for freeing the result
1118 char *ldb_base64_encode(void *mem_ctx, const char *buf, int len);
1121 Base64 decode a buffer
1123 This function decodes a base64 encoded string in place.
1125 \param s the string to decode.
1127 \return the length of the returned (decoded) string.
1129 \note the string is null terminated, but the null terminator is not
1130 included in the length.
1132 int ldb_base64_decode(char *s);
1134 int ldb_attrib_add_handlers(struct ldb_context *ldb,
1135 const struct ldb_attrib_handler *handlers,
1136 unsigned num_handlers);
1138 /* The following definitions come from lib/ldb/common/ldb_dn.c */
1140 int ldb_dn_is_special(const struct ldb_dn *dn);
1141 int ldb_dn_check_special(const struct ldb_dn *dn, const char *check);
1142 char *ldb_dn_escape_value(void *mem_ctx, struct ldb_val value);
1143 struct ldb_dn *ldb_dn_new(void *mem_ctx);
1144 struct ldb_dn *ldb_dn_explode(void *mem_ctx, const char *dn);
1145 struct ldb_dn *ldb_dn_explode_or_special(void *mem_ctx, const char *dn);
1146 char *ldb_dn_linearize(void *mem_ctx, const struct ldb_dn *edn);
1147 char *ldb_dn_linearize_casefold(struct ldb_context *ldb, const struct ldb_dn *edn);
1148 int ldb_dn_compare_base(struct ldb_context *ldb, const struct ldb_dn *base, const struct ldb_dn *dn);
1149 int ldb_dn_compare(struct ldb_context *ldb, const struct ldb_dn *edn0, const struct ldb_dn *edn1);
1150 struct ldb_dn *ldb_dn_casefold(struct ldb_context *ldb, const struct ldb_dn *edn);
1151 struct ldb_dn *ldb_dn_explode_casefold(struct ldb_context *ldb, const char *dn);
1152 struct ldb_dn *ldb_dn_copy_partial(void *mem_ctx, const struct ldb_dn *dn, int num_el);
1153 struct ldb_dn *ldb_dn_copy(void *mem_ctx, const struct ldb_dn *dn);
1154 struct ldb_dn *ldb_dn_get_parent(void *mem_ctx, const struct ldb_dn *dn);
1155 struct ldb_dn_component *ldb_dn_build_component(void *mem_ctx, const char *attr,
1157 struct ldb_dn *ldb_dn_build_child(void *mem_ctx, const char *attr,
1159 const struct ldb_dn *base);
1160 struct ldb_dn *ldb_dn_make_child(void *mem_ctx,
1161 const struct ldb_dn_component *component,
1162 const struct ldb_dn *base);
1163 struct ldb_dn *ldb_dn_compose(void *mem_ctx, const struct ldb_dn *dn1, const struct ldb_dn *dn2);
1164 struct ldb_dn *ldb_dn_string_compose(void *mem_ctx, const struct ldb_dn *base, const char *child_fmt, ...) PRINTF_ATTRIBUTE(3,4);
1165 struct ldb_dn_component *ldb_dn_get_rdn(void *mem_ctx, const struct ldb_dn *dn);
1167 /* useful functions for ldb_message structure manipulation */
1168 int ldb_dn_cmp(struct ldb_context *ldb, const char *dn1, const char *dn2);
1171 Compare two attributes
1173 This function compares to attribute names. Note that this is a
1174 case-insensitive comparison.
1176 \param attr1 the first attribute name to compare
1177 \param attr2 the second attribute name to compare
1179 \return 0 if the attribute names are the same, or only differ in
1180 case; non-zero if there are any differences
1182 int ldb_attr_cmp(const char *attr1, const char *attr2);
1183 char *ldb_attr_casefold(void *mem_ctx, const char *s);
1184 int ldb_attr_dn(const char *attr);
1187 Create an empty message
1189 \param mem_ctx the memory context to create in. You can pass NULL
1190 to get the top level context, however the ldb context (from
1191 ldb_init()) may be a better choice
1193 struct ldb_message *ldb_msg_new(void *mem_ctx);
1196 Find an element within an message
1198 struct ldb_message_element *ldb_msg_find_element(const struct ldb_message *msg,
1199 const char *attr_name);
1202 Compare two ldb_val values
1204 \param v1 first ldb_val structure to be tested
1205 \param v2 second ldb_val structure to be tested
1207 \return 1 for a match, 0 if there is any difference
1209 int ldb_val_equal_exact(const struct ldb_val *v1, const struct ldb_val *v2);
1212 find a value within an ldb_message_element
1214 \param el the element to search
1215 \param val the value to search for
1217 \note This search is case sensitive
1219 struct ldb_val *ldb_msg_find_val(const struct ldb_message_element *el,
1220 struct ldb_val *val);
1223 add a new empty element to a ldb_message
1225 int ldb_msg_add_empty(struct ldb_message *msg, const char *attr_name, int flags);
1228 add a element to a ldb_message
1230 int ldb_msg_add(struct ldb_message *msg,
1231 const struct ldb_message_element *el,
1233 int ldb_msg_add_value(struct ldb_message *msg,
1234 const char *attr_name,
1235 const struct ldb_val *val);
1236 int ldb_msg_add_steal_value(struct ldb_message *msg,
1237 const char *attr_name,
1238 struct ldb_val *val);
1239 int ldb_msg_add_steal_string(struct ldb_message *msg,
1240 const char *attr_name, char *str);
1241 int ldb_msg_add_string(struct ldb_message *msg,
1242 const char *attr_name, const char *str);
1243 int ldb_msg_add_fmt(struct ldb_message *msg,
1244 const char *attr_name, const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1247 compare two message elements - return 0 on match
1249 int ldb_msg_element_compare(struct ldb_message_element *el1,
1250 struct ldb_message_element *el2);
1253 Find elements in a message.
1255 This function finds elements and converts to a specific type, with
1256 a give default value if not found. Assumes that elements are
1259 const struct ldb_val *ldb_msg_find_ldb_val(const struct ldb_message *msg, const char *attr_name);
1260 int ldb_msg_find_attr_as_int(const struct ldb_message *msg,
1261 const char *attr_name,
1263 unsigned int ldb_msg_find_attr_as_uint(const struct ldb_message *msg,
1264 const char *attr_name,
1265 unsigned int default_value);
1266 int64_t ldb_msg_find_attr_as_int64(const struct ldb_message *msg,
1267 const char *attr_name,
1268 int64_t default_value);
1269 uint64_t ldb_msg_find_attr_as_uint64(const struct ldb_message *msg,
1270 const char *attr_name,
1271 uint64_t default_value);
1272 double ldb_msg_find_attr_as_double(const struct ldb_message *msg,
1273 const char *attr_name,
1274 double default_value);
1275 int ldb_msg_find_attr_as_bool(const struct ldb_message *msg,
1276 const char *attr_name,
1278 const char *ldb_msg_find_attr_as_string(const struct ldb_message *msg,
1279 const char *attr_name,
1280 const char *default_value);
1282 struct ldb_dn *ldb_msg_find_attr_as_dn(void *mem_ctx,
1283 const struct ldb_message *msg,
1284 const char *attr_name);
1286 void ldb_msg_sort_elements(struct ldb_message *msg);
1288 struct ldb_message *ldb_msg_copy_shallow(void *mem_ctx,
1289 const struct ldb_message *msg);
1290 struct ldb_message *ldb_msg_copy(void *mem_ctx,
1291 const struct ldb_message *msg);
1293 struct ldb_message *ldb_msg_canonicalize(struct ldb_context *ldb,
1294 const struct ldb_message *msg);
1297 struct ldb_message *ldb_msg_diff(struct ldb_context *ldb,
1298 struct ldb_message *msg1,
1299 struct ldb_message *msg2);
1301 int ldb_msg_check_string_attribute(const struct ldb_message *msg,
1306 Integrity check an ldb_message
1308 This function performs basic sanity / integrity checks on an
1311 \param msg the message to check
1313 \return LDB_SUCCESS if the message is OK, or a non-zero error code
1314 (one of LDB_ERR_INVALID_DN_SYNTAX, LDB_ERR_ENTRY_ALREADY_EXISTS or
1315 LDB_ERR_INVALID_ATTRIBUTE_SYNTAX) if there is a problem with a
1318 int ldb_msg_sanity_check(struct ldb_context *ldb,
1319 const struct ldb_message *msg);
1322 Duplicate an ldb_val structure
1324 This function copies an ldb value structure.
1326 \param mem_ctx the memory context that the duplicated value will be
1328 \param v the ldb_val to be duplicated.
1330 \return the duplicated ldb_val structure.
1332 struct ldb_val ldb_val_dup(void *mem_ctx, const struct ldb_val *v);
1335 this allows the user to set a debug function for error reporting
1337 int ldb_set_debug(struct ldb_context *ldb,
1338 void (*debug)(void *context, enum ldb_debug_level level,
1339 const char *fmt, va_list ap) PRINTF_ATTRIBUTE(3,0),
1343 this allows the user to set custom utf8 function for error reporting
1345 void ldb_set_utf8_fns(struct ldb_context *ldb,
1347 char *(*casefold)(void *, void *, const char *));
1350 this sets up debug to print messages on stderr
1352 int ldb_set_debug_stderr(struct ldb_context *ldb);
1354 /* control backend specific opaque values */
1355 int ldb_set_opaque(struct ldb_context *ldb, const char *name, void *value);
1356 void *ldb_get_opaque(struct ldb_context *ldb, const char *name);
1358 const struct ldb_attrib_handler *ldb_attrib_handler(struct ldb_context *ldb,
1359 const char *attrib);
1362 const char **ldb_attr_list_copy(void *mem_ctx, const char * const *attrs);
1363 const char **ldb_attr_list_copy_add(void *mem_ctx, const char * const *attrs, const char *new_attr);
1364 int ldb_attr_in_list(const char * const *attrs, const char *attr);
1367 void ldb_parse_tree_attr_replace(struct ldb_parse_tree *tree,
1369 const char *replace);
1371 int ldb_msg_rename_attr(struct ldb_message *msg, const char *attr, const char *replace);
1372 int ldb_msg_copy_attr(struct ldb_message *msg, const char *attr, const char *replace);
1373 void ldb_msg_remove_attr(struct ldb_message *msg, const char *attr);
1376 Convert a time structure to a string
1378 This function converts a time_t structure to an LDAP formatted time
1381 \param mem_ctx the memory context to allocate the return string in
1382 \param t the time structure to convert
1384 \return the formatted string, or NULL if the time structure could
1387 char *ldb_timestring(void *mem_ctx, time_t t);
1390 Convert a string to a time structure
1392 This function converts an LDAP formatted time string to a time_t
1395 \param s the string to convert
1397 \return the time structure, or 0 if the string cannot be converted
1399 time_t ldb_string_to_time(const char *s);
1401 char *ldb_dn_canonical_string(void *mem_ctx, const struct ldb_dn *dn);
1402 char *ldb_dn_canonical_ex_string(void *mem_ctx, const struct ldb_dn *dn);
1405 void ldb_qsort (void *const pbase, size_t total_elems, size_t size, void *opaque, ldb_qsort_cmp_fn_t cmp);