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"
497 struct ldb_paged_control {
503 struct ldb_extended_dn_control {
507 struct ldb_server_sort_control {
513 struct ldb_sort_resp_control {
518 struct ldb_asq_control {
520 char *source_attribute;
525 struct ldb_dirsync_control {
532 struct ldb_vlv_req_control {
550 struct ldb_vlv_resp_control {
564 enum ldb_request_type {
574 enum ldb_reply_type {
580 enum ldb_async_wait_type {
585 enum ldb_async_state {
593 struct ldb_message **msgs;
595 struct ldb_control **controls;
598 struct ldb_async_result {
599 enum ldb_reply_type type;
600 struct ldb_message *message;
602 struct ldb_control **controls;
605 struct ldb_async_handle {
607 enum ldb_async_state state;
609 struct ldb_module *module;
613 const struct ldb_dn *base;
614 enum ldb_scope scope;
615 const struct ldb_parse_tree *tree;
616 const char * const *attrs;
617 struct ldb_result *res;
621 const struct ldb_message *message;
625 const struct ldb_message *message;
629 const struct ldb_dn *dn;
633 const struct ldb_dn *olddn;
634 const struct ldb_dn *newdn;
637 struct ldb_register_control {
643 enum ldb_request_type operation;
646 struct ldb_search search;
648 struct ldb_modify mod;
649 struct ldb_delete del;
650 struct ldb_rename rename;
651 struct ldb_register_control reg;
654 struct ldb_control **controls;
658 int (*callback)(struct ldb_context *, void *, struct ldb_async_result *);
662 struct ldb_async_handle *handle;
666 int ldb_request(struct ldb_context *ldb, struct ldb_request *request);
668 int ldb_async_wait(struct ldb_async_handle *handle, enum ldb_async_wait_type type);
670 int ldb_set_timeout(struct ldb_context *ldb, struct ldb_request *req, int timeout);
671 int ldb_set_timeout_from_prev_req(struct ldb_context *ldb, struct ldb_request *oldreq, struct ldb_request *newreq);
674 Initialise ldbs' global information
676 This is required before any other LDB call
678 \return 0 if initialisation succeeded, -1 otherwise
680 int ldb_global_init(void);
683 Initialise an ldb context
685 This is required before any other LDB call.
687 \param mem_ctx pointer to a talloc memory context. Pass NULL if there is
688 no suitable context available.
690 \return pointer to ldb_context that should be free'd (using talloc_free())
691 at the end of the program.
693 struct ldb_context *ldb_init(void *mem_ctx);
696 Connect to a database.
698 This is typically called soon after ldb_init(), and is required prior to
699 any search or database modification operations.
701 The URL can be one of the following forms:
707 \param ldb the context associated with the database (from ldb_init())
708 \param url the URL of the database to connect to, as noted above
709 \param flags a combination of LDB_FLG_* to modify the connection behaviour
710 \param options backend specific options - passed uninterpreted to the backend
712 \return result code (LDB_SUCCESS on success, or a failure code)
714 \note It is an error to connect to a database that does not exist in readonly mode
715 (that is, with LDB_FLG_RDONLY). However in read-write mode, the database will be
716 created if it does not exist.
718 int ldb_connect(struct ldb_context *ldb, const char *url, unsigned int flags, const char *options[]);
723 This function searches the database, and returns
724 records that match an LDAP-like search expression
726 \param ldb the context associated with the database (from ldb_init())
727 \param base the Base Distinguished Name for the query (pass NULL for root DN)
728 \param scope the search scope for the query
729 \param expression the search expression to use for this query
730 \param attrs the search attributes for the query (pass NULL if none required)
731 \param res the return result
733 \return result code (LDB_SUCCESS on success, or a failure code)
735 \note use talloc_free() to free the ldb_result returned
737 int ldb_search(struct ldb_context *ldb,
738 const struct ldb_dn *base,
739 enum ldb_scope scope,
740 const char *expression,
741 const char * const *attrs, struct ldb_result **res);
744 like ldb_search() but takes a parse tree
746 int ldb_search_bytree(struct ldb_context *ldb,
747 const struct ldb_dn *base,
748 enum ldb_scope scope,
749 struct ldb_parse_tree *tree,
750 const char * const *attrs, struct ldb_result **res);
753 Add a record to the database.
755 This function adds a record to the database. This function will fail
756 if a record with the specified class and key already exists in the
759 \param ldb the context associated with the database (from
761 \param message the message containing the record to add.
763 \return result code (LDB_SUCCESS if the record was added, otherwise
766 int ldb_add(struct ldb_context *ldb,
767 const struct ldb_message *message);
770 Modify the specified attributes of a record
772 This function modifies a record that is in the database.
774 \param ldb the context associated with the database (from
776 \param message the message containing the changes required.
778 \return result code (LDB_SUCCESS if the record was modified as
779 requested, otherwise a failure code)
781 int ldb_modify(struct ldb_context *ldb,
782 const struct ldb_message *message);
785 Rename a record in the database
787 This function renames a record in the database.
789 \param ldb the context associated with the database (from
791 \param olddn the DN for the record to be renamed.
792 \param newdn the new DN
794 \return result code (LDB_SUCCESS if the record was renamed as
795 requested, otherwise a failure code)
797 int ldb_rename(struct ldb_context *ldb, const struct ldb_dn *olddn, const struct ldb_dn *newdn);
800 Delete a record from the database
802 This function deletes a record from the database.
804 \param ldb the context associated with the database (from
806 \param dn the DN for the record to be deleted.
808 \return result code (LDB_SUCCESS if the record was deleted,
809 otherwise a failure code)
811 int ldb_delete(struct ldb_context *ldb, const struct ldb_dn *dn);
816 int ldb_transaction_start(struct ldb_context *ldb);
821 int ldb_transaction_commit(struct ldb_context *ldb);
826 int ldb_transaction_cancel(struct ldb_context *ldb);
830 return extended error information from the last call
832 const char *ldb_errstring(struct ldb_context *ldb);
835 return a string explaining what a ldb error constant meancs
837 const char *ldb_strerror(int ldb_err);
840 setup the default utf8 functions
841 FIXME: these functions do not yet handle utf8
843 void ldb_set_utf8_default(struct ldb_context *ldb);
848 \param ldb the ldb context
849 \param mem_ctx the memory context to allocate the result string
851 \param s the string that is to be folded
852 \return a copy of the string, converted to upper case
854 \note The default function is not yet UTF8 aware. Provide your own
855 set of functions through ldb_set_utf8_fns()
857 char *ldb_casefold(struct ldb_context *ldb, void *mem_ctx, const char *s);
860 Check the attribute name is valid according to rfc2251
861 \param s tthe string to check
863 \return 1 if the name is ok
865 int ldb_valid_attr_name(const char *s);
868 ldif manipulation functions
871 Write an LDIF message
873 This function writes an LDIF message using a caller supplied write
876 \param ldb the ldb context (from ldb_init())
877 \param fprintf_fn a function pointer for the write function. This must take
878 a private data pointer, followed by a format string, and then a variable argument
880 \param private_data pointer that will be provided back to the write
881 function. This is useful for maintaining state or context.
882 \param ldif the message to write out
884 \return the total number of bytes written, or an error code as returned
885 from the write function.
887 \sa ldb_ldif_write_file for a more convenient way to write to a
890 \sa ldb_ldif_read for the reader equivalent to this function.
892 int ldb_ldif_write(struct ldb_context *ldb,
893 int (*fprintf_fn)(void *, const char *, ...),
895 const struct ldb_ldif *ldif);
898 Clean up an LDIF message
900 This function cleans up a LDIF message read using ldb_ldif_read()
901 or related functions (such as ldb_ldif_read_string() and
902 ldb_ldif_read_file().
904 \param ldb the ldb context (from ldb_init())
905 \param msg the message to clean up and free
908 void ldb_ldif_read_free(struct ldb_context *ldb, struct ldb_ldif *msg);
913 This function creates an LDIF message using a caller supplied read
916 \param ldb the ldb context (from ldb_init())
917 \param fgetc_fn a function pointer for the read function. This must
918 take a private data pointer, and must return a pointer to an
919 integer corresponding to the next byte read (or EOF if there is no
920 more data to be read).
921 \param private_data pointer that will be provided back to the read
922 function. This is udeful for maintaining state or context.
924 \return the LDIF message that has been read in
926 \note You must free the LDIF message when no longer required, using
927 ldb_ldif_read_free().
929 \sa ldb_ldif_read_file for a more convenient way to read from a
932 \sa ldb_ldif_read_string for a more convenient way to read from a
935 \sa ldb_ldif_write for the writer equivalent to this function.
937 struct ldb_ldif *ldb_ldif_read(struct ldb_context *ldb,
938 int (*fgetc_fn)(void *), void *private_data);
941 Read an LDIF message from a file
943 This function reads the next LDIF message from the contents of a
944 file stream. If you want to get all of the LDIF messages, you will
945 need to repeatedly call this function, until it returns NULL.
947 \param ldb the ldb context (from ldb_init())
948 \param f the file stream to read from (typically from fdopen())
950 \sa ldb_ldif_read_string for an equivalent function that will read
951 from a string (char array).
953 \sa ldb_ldif_write_file for the writer equivalent to this function.
956 struct ldb_ldif *ldb_ldif_read_file(struct ldb_context *ldb, FILE *f);
959 Read an LDIF message from a string
961 This function reads the next LDIF message from the contents of a char
962 array. If you want to get all of the LDIF messages, you will need
963 to repeatedly call this function, until it returns NULL.
965 \param ldb the ldb context (from ldb_init())
966 \param s pointer to the char array to read from
968 \sa ldb_ldif_read_file for an equivalent function that will read
971 \sa ldb_ldif_write for a more general (arbitrary read function)
972 version of this function.
974 struct ldb_ldif *ldb_ldif_read_string(struct ldb_context *ldb, const char **s);
977 Write an LDIF message to a file
979 \param ldb the ldb context (from ldb_init())
980 \param f the file stream to write to (typically from fdopen())
981 \param msg the message to write out
983 \return the total number of bytes written, or a negative error code
985 \sa ldb_ldif_read_file for the reader equivalent to this function.
987 int ldb_ldif_write_file(struct ldb_context *ldb, FILE *f, const struct ldb_ldif *msg);
990 Base64 encode a buffer
992 \param mem_ctx the memory context that the result is allocated
994 \param buf pointer to the array that is to be encoded
995 \param len the number of elements in the array to be encoded
997 \return pointer to an array containing the encoded data
999 \note The caller is responsible for freeing the result
1001 char *ldb_base64_encode(void *mem_ctx, const char *buf, int len);
1004 Base64 decode a buffer
1006 This function decodes a base64 encoded string in place.
1008 \param s the string to decode.
1010 \return the length of the returned (decoded) string.
1012 \note the string is null terminated, but the null terminator is not
1013 included in the length.
1015 int ldb_base64_decode(char *s);
1017 int ldb_attrib_add_handlers(struct ldb_context *ldb,
1018 const struct ldb_attrib_handler *handlers,
1019 unsigned num_handlers);
1021 /* The following definitions come from lib/ldb/common/ldb_dn.c */
1023 int ldb_dn_is_special(const struct ldb_dn *dn);
1024 int ldb_dn_check_special(const struct ldb_dn *dn, const char *check);
1025 char *ldb_dn_escape_value(void *mem_ctx, struct ldb_val value);
1026 struct ldb_dn *ldb_dn_new(void *mem_ctx);
1027 struct ldb_dn *ldb_dn_explode(void *mem_ctx, const char *dn);
1028 struct ldb_dn *ldb_dn_explode_or_special(void *mem_ctx, const char *dn);
1029 char *ldb_dn_linearize(void *mem_ctx, const struct ldb_dn *edn);
1030 char *ldb_dn_linearize_casefold(struct ldb_context *ldb, const struct ldb_dn *edn);
1031 int ldb_dn_compare_base(struct ldb_context *ldb, const struct ldb_dn *base, const struct ldb_dn *dn);
1032 int ldb_dn_compare(struct ldb_context *ldb, const struct ldb_dn *edn0, const struct ldb_dn *edn1);
1033 struct ldb_dn *ldb_dn_casefold(struct ldb_context *ldb, const struct ldb_dn *edn);
1034 struct ldb_dn *ldb_dn_explode_casefold(struct ldb_context *ldb, const char *dn);
1035 struct ldb_dn *ldb_dn_copy_partial(void *mem_ctx, const struct ldb_dn *dn, int num_el);
1036 struct ldb_dn *ldb_dn_copy(void *mem_ctx, const struct ldb_dn *dn);
1037 struct ldb_dn *ldb_dn_get_parent(void *mem_ctx, const struct ldb_dn *dn);
1038 struct ldb_dn_component *ldb_dn_build_component(void *mem_ctx, const char *attr,
1040 struct ldb_dn *ldb_dn_build_child(void *mem_ctx, const char *attr,
1042 const struct ldb_dn *base);
1043 struct ldb_dn *ldb_dn_make_child(void *mem_ctx,
1044 const struct ldb_dn_component *component,
1045 const struct ldb_dn *base);
1046 struct ldb_dn *ldb_dn_compose(void *mem_ctx, const struct ldb_dn *dn1, const struct ldb_dn *dn2);
1047 struct ldb_dn *ldb_dn_string_compose(void *mem_ctx, const struct ldb_dn *base, const char *child_fmt, ...) PRINTF_ATTRIBUTE(3,4);
1048 struct ldb_dn_component *ldb_dn_get_rdn(void *mem_ctx, const struct ldb_dn *dn);
1050 /* useful functions for ldb_message structure manipulation */
1051 int ldb_dn_cmp(struct ldb_context *ldb, const char *dn1, const char *dn2);
1054 Compare two attributes
1056 This function compares to attribute names. Note that this is a
1057 case-insensitive comparison.
1059 \param attr1 the first attribute name to compare
1060 \param attr2 the second attribute name to compare
1062 \return 0 if the attribute names are the same, or only differ in
1063 case; non-zero if there are any differences
1065 int ldb_attr_cmp(const char *attr1, const char *attr2);
1066 char *ldb_attr_casefold(void *mem_ctx, const char *s);
1067 int ldb_attr_dn(const char *attr);
1070 Create an empty message
1072 \param mem_ctx the memory context to create in. You can pass NULL
1073 to get the top level context, however the ldb context (from
1074 ldb_init()) may be a better choice
1076 struct ldb_message *ldb_msg_new(void *mem_ctx);
1079 Find an element within an message
1081 struct ldb_message_element *ldb_msg_find_element(const struct ldb_message *msg,
1082 const char *attr_name);
1085 Compare two ldb_val values
1087 \param v1 first ldb_val structure to be tested
1088 \param v2 second ldb_val structure to be tested
1090 \return 1 for a match, 0 if there is any difference
1092 int ldb_val_equal_exact(const struct ldb_val *v1, const struct ldb_val *v2);
1095 find a value within an ldb_message_element
1097 \param el the element to search
1098 \param val the value to search for
1100 \note This search is case sensitive
1102 struct ldb_val *ldb_msg_find_val(const struct ldb_message_element *el,
1103 struct ldb_val *val);
1106 add a new empty element to a ldb_message
1108 int ldb_msg_add_empty(struct ldb_message *msg, const char *attr_name, int flags);
1111 add a element to a ldb_message
1113 int ldb_msg_add(struct ldb_message *msg,
1114 const struct ldb_message_element *el,
1116 int ldb_msg_add_value(struct ldb_message *msg,
1117 const char *attr_name,
1118 const struct ldb_val *val);
1119 int ldb_msg_add_steal_value(struct ldb_message *msg,
1120 const char *attr_name,
1121 struct ldb_val *val);
1122 int ldb_msg_add_steal_string(struct ldb_message *msg,
1123 const char *attr_name, char *str);
1124 int ldb_msg_add_string(struct ldb_message *msg,
1125 const char *attr_name, const char *str);
1126 int ldb_msg_add_fmt(struct ldb_message *msg,
1127 const char *attr_name, const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1130 compare two message elements - return 0 on match
1132 int ldb_msg_element_compare(struct ldb_message_element *el1,
1133 struct ldb_message_element *el2);
1136 Find elements in a message.
1138 This function finds elements and converts to a specific type, with
1139 a give default value if not found. Assumes that elements are
1142 const struct ldb_val *ldb_msg_find_ldb_val(const struct ldb_message *msg, const char *attr_name);
1143 int ldb_msg_find_int(const struct ldb_message *msg,
1144 const char *attr_name,
1146 unsigned int ldb_msg_find_uint(const struct ldb_message *msg,
1147 const char *attr_name,
1148 unsigned int default_value);
1149 int64_t ldb_msg_find_int64(const struct ldb_message *msg,
1150 const char *attr_name,
1151 int64_t default_value);
1152 uint64_t ldb_msg_find_uint64(const struct ldb_message *msg,
1153 const char *attr_name,
1154 uint64_t default_value);
1155 double ldb_msg_find_double(const struct ldb_message *msg,
1156 const char *attr_name,
1157 double default_value);
1158 const char *ldb_msg_find_string(const struct ldb_message *msg,
1159 const char *attr_name,
1160 const char *default_value);
1162 void ldb_msg_sort_elements(struct ldb_message *msg);
1164 struct ldb_message *ldb_msg_copy_shallow(void *mem_ctx,
1165 const struct ldb_message *msg);
1166 struct ldb_message *ldb_msg_copy(void *mem_ctx,
1167 const struct ldb_message *msg);
1169 struct ldb_message *ldb_msg_canonicalize(struct ldb_context *ldb,
1170 const struct ldb_message *msg);
1173 struct ldb_message *ldb_msg_diff(struct ldb_context *ldb,
1174 struct ldb_message *msg1,
1175 struct ldb_message *msg2);
1177 int ldb_msg_check_string_attribute(const struct ldb_message *msg,
1182 Integrity check an ldb_message
1184 This function performs basic sanity / integrity checks on an
1187 \param msg the message to check
1189 \return LDB_SUCCESS if the message is OK, or a non-zero error code
1190 (one of LDB_ERR_INVALID_DN_SYNTAX, LDB_ERR_ENTRY_ALREADY_EXISTS or
1191 LDB_ERR_INVALID_ATTRIBUTE_SYNTAX) if there is a problem with a
1194 int ldb_msg_sanity_check(const struct ldb_message *msg);
1197 Duplicate an ldb_val structure
1199 This function copies an ldb value structure.
1201 \param mem_ctx the memory context that the duplicated value will be
1203 \param v the ldb_val to be duplicated.
1205 \return the duplicated ldb_val structure.
1207 struct ldb_val ldb_val_dup(void *mem_ctx, const struct ldb_val *v);
1210 this allows the user to set a debug function for error reporting
1212 int ldb_set_debug(struct ldb_context *ldb,
1213 void (*debug)(void *context, enum ldb_debug_level level,
1214 const char *fmt, va_list ap),
1218 this allows the user to set custom utf8 function for error reporting
1220 void ldb_set_utf8_fns(struct ldb_context *ldb,
1222 char *(*casefold)(void *, void *, const char *));
1225 this sets up debug to print messages on stderr
1227 int ldb_set_debug_stderr(struct ldb_context *ldb);
1229 /* control backend specific opaque values */
1230 int ldb_set_opaque(struct ldb_context *ldb, const char *name, void *value);
1231 void *ldb_get_opaque(struct ldb_context *ldb, const char *name);
1233 const struct ldb_attrib_handler *ldb_attrib_handler(struct ldb_context *ldb,
1234 const char *attrib);
1237 const char **ldb_attr_list_copy(void *mem_ctx, const char * const *attrs);
1238 int ldb_attr_in_list(const char * const *attrs, const char *attr);
1241 void ldb_parse_tree_attr_replace(struct ldb_parse_tree *tree,
1243 const char *replace);
1245 int ldb_msg_rename_attr(struct ldb_message *msg, const char *attr, const char *replace);
1246 int ldb_msg_copy_attr(struct ldb_message *msg, const char *attr, const char *replace);
1247 void ldb_msg_remove_attr(struct ldb_message *msg, const char *attr);
1250 Convert a time structure to a string
1252 This function converts a time_t structure to an LDAP formatted time
1255 \param mem_ctx the memory context to allocate the return string in
1256 \param t the time structure to convert
1258 \return the formatted string, or NULL if the time structure could
1261 char *ldb_timestring(void *mem_ctx, time_t t);
1264 Convert a string to a time structure
1266 This function converts an LDAP formatted time string to a time_t
1269 \param s the string to convert
1271 \return the time structure, or 0 if the string cannot be converted
1273 time_t ldb_string_to_time(const char *s);
1275 char *ldb_dn_canonical_string(void *mem_ctx, const struct ldb_dn *dn);
1276 char *ldb_dn_canonical_ex_string(void *mem_ctx, const struct ldb_dn *dn);
1279 void ldb_qsort (void *const pbase, size_t total_elems, size_t size, void *opaque, ldb_qsort_cmp_fn_t cmp);