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 */
84 internal ldb exploded dn structures
86 struct ldb_dn_component {
93 struct ldb_dn_component *components;
97 There are a number of flags that are used with ldap_modify() in
98 ldb_message_element.flags fields. The LDA_FLAGS_MOD_ADD,
99 LDA_FLAGS_MOD_DELETE and LDA_FLAGS_MOD_REPLACE flags are used in
100 ldap_modify() calls to specify whether attributes are being added,
101 deleted or modified respectively.
103 #define LDB_FLAG_MOD_MASK 0x3
106 Flag value used in ldap_modify() to indicate that attributes are
109 \sa LDB_FLAG_MOD_MASK
111 #define LDB_FLAG_MOD_ADD 1
114 Flag value used in ldap_modify() to indicate that attributes are
117 \sa LDB_FLAG_MOD_MASK
119 #define LDB_FLAG_MOD_REPLACE 2
122 Flag value used in ldap_modify() to indicate that attributes are
125 \sa LDB_FLAG_MOD_MASK
127 #define LDB_FLAG_MOD_DELETE 3
130 OID for logic AND comaprison.
132 This is the well known object ID for a logical AND comparitor.
134 #define LDB_OID_COMPARATOR_AND "1.2.840.113556.1.4.803"
137 OID for logic OR comparison.
139 This is the well known object ID for a logical OR comparitor.
141 #define LDB_OID_COMPARATOR_OR "1.2.840.113556.1.4.804"
144 results are given back as arrays of ldb_message_element
146 struct ldb_message_element {
149 unsigned int num_values;
150 struct ldb_val *values;
155 a ldb_message represents all or part of a record. It can contain an arbitrary
160 unsigned int num_elements;
161 struct ldb_message_element *elements;
162 void *private_data; /* private to the backend */
165 enum ldb_changetype {
166 LDB_CHANGETYPE_NONE=0,
168 LDB_CHANGETYPE_DELETE,
169 LDB_CHANGETYPE_MODIFY
175 This structure contains a LDIF record, as returned from ldif_read()
176 and equivalent functions.
179 enum ldb_changetype changetype; /*!< The type of change */
180 struct ldb_message *msg; /*!< The changes */
183 enum ldb_scope {LDB_SCOPE_DEFAULT=-1,
185 LDB_SCOPE_ONELEVEL=1,
186 LDB_SCOPE_SUBTREE=2};
191 the fuction type for the callback used in traversing the database
193 typedef int (*ldb_traverse_fn)(struct ldb_context *, const struct ldb_message *);
196 /* debugging uses one of the following levels */
197 enum ldb_debug_level {LDB_DEBUG_FATAL, LDB_DEBUG_ERROR,
198 LDB_DEBUG_WARNING, LDB_DEBUG_TRACE};
201 the user can optionally supply a debug function. The function
202 is based on the vfprintf() style of interface, but with the addition
205 struct ldb_debug_ops {
206 void (*debug)(void *context, enum ldb_debug_level level,
207 const char *fmt, va_list ap);
212 The user can optionally supply a custom utf8 functions,
213 to handle comparisons and casefolding.
215 struct ldb_utf8_fns {
217 char *(*casefold)(void *context, void *mem_ctx, const char *s);
221 Flag value for database connection mode.
223 If LDB_FLG_RDONLY is used in ldb_connect, then the database will be
224 opened read-only, if possible.
226 #define LDB_FLG_RDONLY 1
229 Flag value for database connection mode.
231 If LDB_FLG_NOSYNC is used in ldb_connect, then the database will be
232 opened without synchronous operations, if possible.
234 #define LDB_FLG_NOSYNC 2
237 Flag value to specify autoreconnect mode.
239 If LDB_FLG_RECONNECT is used in ldb_connect, then the backend will
240 be opened in a way that makes it try to auto reconnect if the
241 connection is dropped (actually make sense only with ldap).
243 #define LDB_FLG_RECONNECT 4
245 /*! \cond DOXYGEN_IGNORE */
246 #ifndef PRINTF_ATTRIBUTE
247 #define PRINTF_ATTRIBUTE(a,b)
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"
428 \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>
430 #define LDB_CONTROL_NOTIFICATION_OID "1.2.840.113556.1.4.528"
435 \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>
437 #define LDB_CONTROL_EXTENDED_DN_OID "1.2.840.113556.1.4.529"
440 OID for LDAP server sort result extension.
442 This control is included in the searchRequest message as part of
443 the controls field of the LDAPMessage, as defined in Section 4.1.12
444 of LDAP v3. The controlType is set to
445 "1.2.840.113556.1.4.473". The criticality MAY be either TRUE or
446 FALSE (where absent is also equivalent to FALSE) at the client's
449 \sa <a href="http://www.ietf.org/rfc/rfc2891.txt">RFC 2891</a>.
451 #define LDB_CONTROL_SERVER_SORT_OID "1.2.840.113556.1.4.473"
454 OID for LDAP server sort result response extension.
456 This control is included in the searchResultDone message as part of
457 the controls field of the LDAPMessage, as defined in Section 4.1.12 of
460 \sa <a href="http://www.ietf.org/rfc/rfc2891.txt">RFC 2891</a>.
462 #define LDB_CONTROL_SORT_RESP_OID "1.2.840.113556.1.4.474"
465 OID for LDAP Attribute Scoped Query extension.
467 This control is included in SearchRequest or SearchResponse
468 messages as part of the controls field of the LDAPMessage.
470 #define LDB_CONTROL_ASQ_OID "1.2.840.113556.1.4.1504"
473 OID for LDAP Directory Sync extension.
475 This control is included in SearchRequest or SearchResponse
476 messages as part of the controls field of the LDAPMessage.
478 #define LDB_CONTROL_DIRSYNC_OID "1.2.840.113556.1.4.841"
482 OID for LDAP Virtual List View Request extension.
484 This control is included in SearchRequest messages
485 as part of the controls field of the LDAPMessage.
487 #define LDB_CONTROL_VLV_REQ_OID "2.16.840.1.113730.3.4.9"
490 OID for LDAP Virtual List View Response extension.
492 This control is included in SearchResponse messages
493 as part of the controls field of the LDAPMessage.
495 #define LDB_CONTROL_VLV_RESP_OID "2.16.840.1.113730.3.4.10"
498 OID for LDAP Extended Operation START_TLS.
500 This Extended operation is used to start a new TLS
501 channel on top of a clear text channel.
503 #define LDB_EXTENDED_START_TLS_OID "1.3.6.1.4.1.1466.20037"
505 struct ldb_paged_control {
511 struct ldb_extended_dn_control {
515 struct ldb_server_sort_control {
521 struct ldb_sort_resp_control {
526 struct ldb_asq_control {
528 char *source_attribute;
533 struct ldb_dirsync_control {
540 struct ldb_vlv_req_control {
558 struct ldb_vlv_resp_control {
572 enum ldb_request_type {
579 LDB_REQ_REGISTER_CONTROL,
580 LDB_REQ_REGISTER_PARTITION,
584 enum ldb_reply_type {
604 struct ldb_message **msgs;
606 struct ldb_control **controls;
609 struct ldb_extended {
616 enum ldb_reply_type type;
617 struct ldb_message *message;
618 struct ldb_extended *response;
620 struct ldb_control **controls;
625 enum ldb_state state;
627 struct ldb_module *module;
631 const struct ldb_dn *base;
632 enum ldb_scope scope;
633 const struct ldb_parse_tree *tree;
634 const char * const *attrs;
635 struct ldb_result *res;
639 const struct ldb_message *message;
643 const struct ldb_message *message;
647 const struct ldb_dn *dn;
651 const struct ldb_dn *olddn;
652 const struct ldb_dn *newdn;
655 struct ldb_register_control {
659 struct ldb_register_partition {
660 const struct ldb_dn *dn;
663 struct ldb_sequence_number {
669 enum ldb_request_type operation;
672 struct ldb_search search;
674 struct ldb_modify mod;
675 struct ldb_delete del;
676 struct ldb_rename rename;
677 struct ldb_register_control reg_control;
678 struct ldb_register_partition reg_partition;
679 struct ldb_sequence_number seq_num;
682 struct ldb_control **controls;
685 int (*callback)(struct ldb_context *, void *, struct ldb_reply *);
689 struct ldb_handle *handle;
692 int ldb_request(struct ldb_context *ldb, struct ldb_request *request);
694 int ldb_wait(struct ldb_handle *handle, enum ldb_wait_type type);
696 int ldb_set_timeout(struct ldb_context *ldb, struct ldb_request *req, int timeout);
697 int ldb_set_timeout_from_prev_req(struct ldb_context *ldb, struct ldb_request *oldreq, struct ldb_request *newreq);
700 Initialise ldbs' global information
702 This is required before any other LDB call
704 \return 0 if initialisation succeeded, -1 otherwise
706 int ldb_global_init(void);
709 Initialise an ldb context
711 This is required before any other LDB call.
713 \param mem_ctx pointer to a talloc memory context. Pass NULL if there is
714 no suitable context available.
716 \return pointer to ldb_context that should be free'd (using talloc_free())
717 at the end of the program.
719 struct ldb_context *ldb_init(void *mem_ctx);
722 Connect to a database.
724 This is typically called soon after ldb_init(), and is required prior to
725 any search or database modification operations.
727 The URL can be one of the following forms:
733 \param ldb the context associated with the database (from ldb_init())
734 \param url the URL of the database to connect to, as noted above
735 \param flags a combination of LDB_FLG_* to modify the connection behaviour
736 \param options backend specific options - passed uninterpreted to the backend
738 \return result code (LDB_SUCCESS on success, or a failure code)
740 \note It is an error to connect to a database that does not exist in readonly mode
741 (that is, with LDB_FLG_RDONLY). However in read-write mode, the database will be
742 created if it does not exist.
744 int ldb_connect(struct ldb_context *ldb, const char *url, unsigned int flags, const char *options[]);
749 This function searches the database, and returns
750 records that match an LDAP-like search expression
752 \param ldb the context associated with the database (from ldb_init())
753 \param base the Base Distinguished Name for the query (pass NULL for root DN)
754 \param scope the search scope for the query
755 \param expression the search expression to use for this query
756 \param attrs the search attributes for the query (pass NULL if none required)
757 \param res the return result
759 \return result code (LDB_SUCCESS on success, or a failure code)
761 \note use talloc_free() to free the ldb_result returned
763 int ldb_search(struct ldb_context *ldb,
764 const struct ldb_dn *base,
765 enum ldb_scope scope,
766 const char *expression,
767 const char * const *attrs, struct ldb_result **res);
770 like ldb_search() but takes a parse tree
772 int ldb_search_bytree(struct ldb_context *ldb,
773 const struct ldb_dn *base,
774 enum ldb_scope scope,
775 struct ldb_parse_tree *tree,
776 const char * const *attrs, struct ldb_result **res);
779 Add a record to the database.
781 This function adds a record to the database. This function will fail
782 if a record with the specified class and key already exists in the
785 \param ldb the context associated with the database (from
787 \param message the message containing the record to add.
789 \return result code (LDB_SUCCESS if the record was added, otherwise
792 int ldb_add(struct ldb_context *ldb,
793 const struct ldb_message *message);
796 Modify the specified attributes of a record
798 This function modifies a record that is in the database.
800 \param ldb the context associated with the database (from
802 \param message the message containing the changes required.
804 \return result code (LDB_SUCCESS if the record was modified as
805 requested, otherwise a failure code)
807 int ldb_modify(struct ldb_context *ldb,
808 const struct ldb_message *message);
811 Rename a record in the database
813 This function renames a record in the database.
815 \param ldb the context associated with the database (from
817 \param olddn the DN for the record to be renamed.
818 \param newdn the new DN
820 \return result code (LDB_SUCCESS if the record was renamed as
821 requested, otherwise a failure code)
823 int ldb_rename(struct ldb_context *ldb, const struct ldb_dn *olddn, const struct ldb_dn *newdn);
826 Delete a record from the database
828 This function deletes a record from the database.
830 \param ldb the context associated with the database (from
832 \param dn the DN for the record to be deleted.
834 \return result code (LDB_SUCCESS if the record was deleted,
835 otherwise a failure code)
837 int ldb_delete(struct ldb_context *ldb, const struct ldb_dn *dn);
840 Obtain current database sequence number
842 int ldb_sequence_number(struct ldb_context *ldb, uint64_t *seq_num);
847 int ldb_transaction_start(struct ldb_context *ldb);
852 int ldb_transaction_commit(struct ldb_context *ldb);
857 int ldb_transaction_cancel(struct ldb_context *ldb);
861 return extended error information from the last call
863 const char *ldb_errstring(struct ldb_context *ldb);
866 return a string explaining what a ldb error constant meancs
868 const char *ldb_strerror(int ldb_err);
871 setup the default utf8 functions
872 FIXME: these functions do not yet handle utf8
874 void ldb_set_utf8_default(struct ldb_context *ldb);
879 \param ldb the ldb context
880 \param mem_ctx the memory context to allocate the result string
882 \param s the string that is to be folded
883 \return a copy of the string, converted to upper case
885 \note The default function is not yet UTF8 aware. Provide your own
886 set of functions through ldb_set_utf8_fns()
888 char *ldb_casefold(struct ldb_context *ldb, void *mem_ctx, const char *s);
891 Check the attribute name is valid according to rfc2251
892 \param s tthe string to check
894 \return 1 if the name is ok
896 int ldb_valid_attr_name(const char *s);
899 ldif manipulation functions
902 Write an LDIF message
904 This function writes an LDIF message using a caller supplied write
907 \param ldb the ldb context (from ldb_init())
908 \param fprintf_fn a function pointer for the write function. This must take
909 a private data pointer, followed by a format string, and then a variable argument
911 \param private_data pointer that will be provided back to the write
912 function. This is useful for maintaining state or context.
913 \param ldif the message to write out
915 \return the total number of bytes written, or an error code as returned
916 from the write function.
918 \sa ldb_ldif_write_file for a more convenient way to write to a
921 \sa ldb_ldif_read for the reader equivalent to this function.
923 int ldb_ldif_write(struct ldb_context *ldb,
924 int (*fprintf_fn)(void *, const char *, ...),
926 const struct ldb_ldif *ldif);
929 Clean up an LDIF message
931 This function cleans up a LDIF message read using ldb_ldif_read()
932 or related functions (such as ldb_ldif_read_string() and
933 ldb_ldif_read_file().
935 \param ldb the ldb context (from ldb_init())
936 \param msg the message to clean up and free
939 void ldb_ldif_read_free(struct ldb_context *ldb, struct ldb_ldif *msg);
944 This function creates an LDIF message using a caller supplied read
947 \param ldb the ldb context (from ldb_init())
948 \param fgetc_fn a function pointer for the read function. This must
949 take a private data pointer, and must return a pointer to an
950 integer corresponding to the next byte read (or EOF if there is no
951 more data to be read).
952 \param private_data pointer that will be provided back to the read
953 function. This is udeful for maintaining state or context.
955 \return the LDIF message that has been read in
957 \note You must free the LDIF message when no longer required, using
958 ldb_ldif_read_free().
960 \sa ldb_ldif_read_file for a more convenient way to read from a
963 \sa ldb_ldif_read_string for a more convenient way to read from a
966 \sa ldb_ldif_write for the writer equivalent to this function.
968 struct ldb_ldif *ldb_ldif_read(struct ldb_context *ldb,
969 int (*fgetc_fn)(void *), void *private_data);
972 Read an LDIF message from a file
974 This function reads the next LDIF message from the contents of a
975 file stream. If you want to get all of the LDIF messages, you will
976 need to repeatedly call this function, until it returns NULL.
978 \param ldb the ldb context (from ldb_init())
979 \param f the file stream to read from (typically from fdopen())
981 \sa ldb_ldif_read_string for an equivalent function that will read
982 from a string (char array).
984 \sa ldb_ldif_write_file for the writer equivalent to this function.
987 struct ldb_ldif *ldb_ldif_read_file(struct ldb_context *ldb, FILE *f);
990 Read an LDIF message from a string
992 This function reads the next LDIF message from the contents of a char
993 array. If you want to get all of the LDIF messages, you will need
994 to repeatedly call this function, until it returns NULL.
996 \param ldb the ldb context (from ldb_init())
997 \param s pointer to the char array to read from
999 \sa ldb_ldif_read_file for an equivalent function that will read
1002 \sa ldb_ldif_write for a more general (arbitrary read function)
1003 version of this function.
1005 struct ldb_ldif *ldb_ldif_read_string(struct ldb_context *ldb, const char **s);
1008 Write an LDIF message to a file
1010 \param ldb the ldb context (from ldb_init())
1011 \param f the file stream to write to (typically from fdopen())
1012 \param msg the message to write out
1014 \return the total number of bytes written, or a negative error code
1016 \sa ldb_ldif_read_file for the reader equivalent to this function.
1018 int ldb_ldif_write_file(struct ldb_context *ldb, FILE *f, const struct ldb_ldif *msg);
1021 Base64 encode a buffer
1023 \param mem_ctx the memory context that the result is allocated
1025 \param buf pointer to the array that is to be encoded
1026 \param len the number of elements in the array to be encoded
1028 \return pointer to an array containing the encoded data
1030 \note The caller is responsible for freeing the result
1032 char *ldb_base64_encode(void *mem_ctx, const char *buf, int len);
1035 Base64 decode a buffer
1037 This function decodes a base64 encoded string in place.
1039 \param s the string to decode.
1041 \return the length of the returned (decoded) string.
1043 \note the string is null terminated, but the null terminator is not
1044 included in the length.
1046 int ldb_base64_decode(char *s);
1048 int ldb_attrib_add_handlers(struct ldb_context *ldb,
1049 const struct ldb_attrib_handler *handlers,
1050 unsigned num_handlers);
1052 /* The following definitions come from lib/ldb/common/ldb_dn.c */
1054 int ldb_dn_is_special(const struct ldb_dn *dn);
1055 int ldb_dn_check_special(const struct ldb_dn *dn, const char *check);
1056 char *ldb_dn_escape_value(void *mem_ctx, struct ldb_val value);
1057 struct ldb_dn *ldb_dn_new(void *mem_ctx);
1058 struct ldb_dn *ldb_dn_explode(void *mem_ctx, const char *dn);
1059 struct ldb_dn *ldb_dn_explode_or_special(void *mem_ctx, const char *dn);
1060 char *ldb_dn_linearize(void *mem_ctx, const struct ldb_dn *edn);
1061 char *ldb_dn_linearize_casefold(struct ldb_context *ldb, const struct ldb_dn *edn);
1062 int ldb_dn_compare_base(struct ldb_context *ldb, const struct ldb_dn *base, const struct ldb_dn *dn);
1063 int ldb_dn_compare(struct ldb_context *ldb, const struct ldb_dn *edn0, const struct ldb_dn *edn1);
1064 struct ldb_dn *ldb_dn_casefold(struct ldb_context *ldb, const struct ldb_dn *edn);
1065 struct ldb_dn *ldb_dn_explode_casefold(struct ldb_context *ldb, const char *dn);
1066 struct ldb_dn *ldb_dn_copy_partial(void *mem_ctx, const struct ldb_dn *dn, int num_el);
1067 struct ldb_dn *ldb_dn_copy(void *mem_ctx, const struct ldb_dn *dn);
1068 struct ldb_dn *ldb_dn_get_parent(void *mem_ctx, const struct ldb_dn *dn);
1069 struct ldb_dn_component *ldb_dn_build_component(void *mem_ctx, const char *attr,
1071 struct ldb_dn *ldb_dn_build_child(void *mem_ctx, const char *attr,
1073 const struct ldb_dn *base);
1074 struct ldb_dn *ldb_dn_make_child(void *mem_ctx,
1075 const struct ldb_dn_component *component,
1076 const struct ldb_dn *base);
1077 struct ldb_dn *ldb_dn_compose(void *mem_ctx, const struct ldb_dn *dn1, const struct ldb_dn *dn2);
1078 struct ldb_dn *ldb_dn_string_compose(void *mem_ctx, const struct ldb_dn *base, const char *child_fmt, ...) PRINTF_ATTRIBUTE(3,4);
1079 struct ldb_dn_component *ldb_dn_get_rdn(void *mem_ctx, const struct ldb_dn *dn);
1081 /* useful functions for ldb_message structure manipulation */
1082 int ldb_dn_cmp(struct ldb_context *ldb, const char *dn1, const char *dn2);
1085 Compare two attributes
1087 This function compares to attribute names. Note that this is a
1088 case-insensitive comparison.
1090 \param attr1 the first attribute name to compare
1091 \param attr2 the second attribute name to compare
1093 \return 0 if the attribute names are the same, or only differ in
1094 case; non-zero if there are any differences
1096 int ldb_attr_cmp(const char *attr1, const char *attr2);
1097 char *ldb_attr_casefold(void *mem_ctx, const char *s);
1098 int ldb_attr_dn(const char *attr);
1101 Create an empty message
1103 \param mem_ctx the memory context to create in. You can pass NULL
1104 to get the top level context, however the ldb context (from
1105 ldb_init()) may be a better choice
1107 struct ldb_message *ldb_msg_new(void *mem_ctx);
1110 Find an element within an message
1112 struct ldb_message_element *ldb_msg_find_element(const struct ldb_message *msg,
1113 const char *attr_name);
1116 Compare two ldb_val values
1118 \param v1 first ldb_val structure to be tested
1119 \param v2 second ldb_val structure to be tested
1121 \return 1 for a match, 0 if there is any difference
1123 int ldb_val_equal_exact(const struct ldb_val *v1, const struct ldb_val *v2);
1126 find a value within an ldb_message_element
1128 \param el the element to search
1129 \param val the value to search for
1131 \note This search is case sensitive
1133 struct ldb_val *ldb_msg_find_val(const struct ldb_message_element *el,
1134 struct ldb_val *val);
1137 add a new empty element to a ldb_message
1139 int ldb_msg_add_empty(struct ldb_message *msg, const char *attr_name, int flags);
1142 add a element to a ldb_message
1144 int ldb_msg_add(struct ldb_message *msg,
1145 const struct ldb_message_element *el,
1147 int ldb_msg_add_value(struct ldb_message *msg,
1148 const char *attr_name,
1149 const struct ldb_val *val);
1150 int ldb_msg_add_steal_value(struct ldb_message *msg,
1151 const char *attr_name,
1152 struct ldb_val *val);
1153 int ldb_msg_add_steal_string(struct ldb_message *msg,
1154 const char *attr_name, char *str);
1155 int ldb_msg_add_string(struct ldb_message *msg,
1156 const char *attr_name, const char *str);
1157 int ldb_msg_add_fmt(struct ldb_message *msg,
1158 const char *attr_name, const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1161 compare two message elements - return 0 on match
1163 int ldb_msg_element_compare(struct ldb_message_element *el1,
1164 struct ldb_message_element *el2);
1167 Find elements in a message.
1169 This function finds elements and converts to a specific type, with
1170 a give default value if not found. Assumes that elements are
1173 const struct ldb_val *ldb_msg_find_ldb_val(const struct ldb_message *msg, const char *attr_name);
1174 int ldb_msg_find_int(const struct ldb_message *msg,
1175 const char *attr_name,
1177 unsigned int ldb_msg_find_uint(const struct ldb_message *msg,
1178 const char *attr_name,
1179 unsigned int default_value);
1180 int64_t ldb_msg_find_int64(const struct ldb_message *msg,
1181 const char *attr_name,
1182 int64_t default_value);
1183 uint64_t ldb_msg_find_uint64(const struct ldb_message *msg,
1184 const char *attr_name,
1185 uint64_t default_value);
1186 double ldb_msg_find_double(const struct ldb_message *msg,
1187 const char *attr_name,
1188 double default_value);
1189 const char *ldb_msg_find_string(const struct ldb_message *msg,
1190 const char *attr_name,
1191 const char *default_value);
1193 void ldb_msg_sort_elements(struct ldb_message *msg);
1195 struct ldb_message *ldb_msg_copy_shallow(void *mem_ctx,
1196 const struct ldb_message *msg);
1197 struct ldb_message *ldb_msg_copy(void *mem_ctx,
1198 const struct ldb_message *msg);
1200 struct ldb_message *ldb_msg_canonicalize(struct ldb_context *ldb,
1201 const struct ldb_message *msg);
1204 struct ldb_message *ldb_msg_diff(struct ldb_context *ldb,
1205 struct ldb_message *msg1,
1206 struct ldb_message *msg2);
1208 int ldb_msg_check_string_attribute(const struct ldb_message *msg,
1213 Integrity check an ldb_message
1215 This function performs basic sanity / integrity checks on an
1218 \param msg the message to check
1220 \return LDB_SUCCESS if the message is OK, or a non-zero error code
1221 (one of LDB_ERR_INVALID_DN_SYNTAX, LDB_ERR_ENTRY_ALREADY_EXISTS or
1222 LDB_ERR_INVALID_ATTRIBUTE_SYNTAX) if there is a problem with a
1225 int ldb_msg_sanity_check(struct ldb_context *ldb,
1226 const struct ldb_message *msg);
1229 Duplicate an ldb_val structure
1231 This function copies an ldb value structure.
1233 \param mem_ctx the memory context that the duplicated value will be
1235 \param v the ldb_val to be duplicated.
1237 \return the duplicated ldb_val structure.
1239 struct ldb_val ldb_val_dup(void *mem_ctx, const struct ldb_val *v);
1242 this allows the user to set a debug function for error reporting
1244 int ldb_set_debug(struct ldb_context *ldb,
1245 void (*debug)(void *context, enum ldb_debug_level level,
1246 const char *fmt, va_list ap),
1250 this allows the user to set custom utf8 function for error reporting
1252 void ldb_set_utf8_fns(struct ldb_context *ldb,
1254 char *(*casefold)(void *, void *, const char *));
1257 this sets up debug to print messages on stderr
1259 int ldb_set_debug_stderr(struct ldb_context *ldb);
1261 /* control backend specific opaque values */
1262 int ldb_set_opaque(struct ldb_context *ldb, const char *name, void *value);
1263 void *ldb_get_opaque(struct ldb_context *ldb, const char *name);
1265 const struct ldb_attrib_handler *ldb_attrib_handler(struct ldb_context *ldb,
1266 const char *attrib);
1269 const char **ldb_attr_list_copy(void *mem_ctx, const char * const *attrs);
1270 const char **ldb_attr_list_copy_add(void *mem_ctx, const char * const *attrs, const char *new_attr);
1271 int ldb_attr_in_list(const char * const *attrs, const char *attr);
1274 void ldb_parse_tree_attr_replace(struct ldb_parse_tree *tree,
1276 const char *replace);
1278 int ldb_msg_rename_attr(struct ldb_message *msg, const char *attr, const char *replace);
1279 int ldb_msg_copy_attr(struct ldb_message *msg, const char *attr, const char *replace);
1280 void ldb_msg_remove_attr(struct ldb_message *msg, const char *attr);
1283 Convert a time structure to a string
1285 This function converts a time_t structure to an LDAP formatted time
1288 \param mem_ctx the memory context to allocate the return string in
1289 \param t the time structure to convert
1291 \return the formatted string, or NULL if the time structure could
1294 char *ldb_timestring(void *mem_ctx, time_t t);
1297 Convert a string to a time structure
1299 This function converts an LDAP formatted time string to a time_t
1302 \param s the string to convert
1304 \return the time structure, or 0 if the string cannot be converted
1306 time_t ldb_string_to_time(const char *s);
1308 char *ldb_dn_canonical_string(void *mem_ctx, const struct ldb_dn *dn);
1309 char *ldb_dn_canonical_ex_string(void *mem_ctx, const struct ldb_dn *dn);
1312 void ldb_qsort (void *const pbase, size_t total_elems, size_t size, void *opaque, ldb_qsort_cmp_fn_t cmp);