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
236 /*! \cond DOXYGEN_IGNORE */
237 #ifndef PRINTF_ATTRIBUTE
238 #define PRINTF_ATTRIBUTE(a,b)
243 structures for ldb_parse_tree handling code
245 enum ldb_parse_op { LDB_OP_AND=1, LDB_OP_OR=2, LDB_OP_NOT=3,
246 LDB_OP_EQUALITY=4, LDB_OP_SUBSTRING=5,
247 LDB_OP_GREATER=6, LDB_OP_LESS=7, LDB_OP_PRESENT=8,
248 LDB_OP_APPROX=9, LDB_OP_EXTENDED=10 };
250 struct ldb_parse_tree {
251 enum ldb_parse_op operation;
254 struct ldb_parse_tree *child;
258 struct ldb_val value;
262 int start_with_wildcard;
263 int end_with_wildcard;
264 struct ldb_val **chunks;
271 struct ldb_val value;
277 struct ldb_val value;
280 unsigned int num_elements;
281 struct ldb_parse_tree **elements;
286 struct ldb_parse_tree *ldb_parse_tree(void *mem_ctx, const char *s);
287 char *ldb_filter_from_tree(void *mem_ctx, struct ldb_parse_tree *tree);
292 This function encodes a binary blob using the encoding rules in RFC
293 2254 (Section 4). This function also escapes any non-printable
296 \param ctx the memory context to allocate the return string in.
297 \param val the (potentially) binary data to be encoded
299 \return the encoded data as a null terminated string
301 \sa <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>.
303 char *ldb_binary_encode(void *ctx, struct ldb_val val);
308 This function encodes a string using the encoding rules in RFC 2254
309 (Section 4). This function also escapes any non-printable
312 \param mem_ctx the memory context to allocate the return string in.
313 \param string the string to be encoded
315 \return the encoded data as a null terminated string
317 \sa <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>.
319 char *ldb_binary_encode_string(void *mem_ctx, const char *string);
322 functions for controlling attribute handling
324 typedef int (*ldb_attr_handler_t)(struct ldb_context *, void *mem_ctx, const struct ldb_val *, struct ldb_val *);
325 typedef int (*ldb_attr_comparison_t)(struct ldb_context *, void *mem_ctx, const struct ldb_val *, const struct ldb_val *);
327 struct ldb_attrib_handler {
330 /* LDB_ATTR_FLAG_* */
333 /* convert from ldif to binary format */
334 ldb_attr_handler_t ldif_read_fn;
336 /* convert from binary to ldif format */
337 ldb_attr_handler_t ldif_write_fn;
339 /* canonicalise a value, for use by indexing and dn construction */
340 ldb_attr_handler_t canonicalise_fn;
342 /* compare two values */
343 ldb_attr_comparison_t comparison_fn;
347 The attribute is not returned by default
349 #define LDB_ATTR_FLAG_HIDDEN (1<<0)
352 The attribute is constructed from other attributes
354 #define LDB_ATTR_FLAG_CONSTRUCTED (1<<1)
357 LDAP attribute syntax for a DN
359 This is the well-known LDAP attribute syntax for a DN.
361 See <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
363 #define LDB_SYNTAX_DN "1.3.6.1.4.1.1466.115.121.1.12"
366 LDAP attribute syntax for a Directory String
368 This is the well-known LDAP attribute syntax for a Directory String.
370 \sa <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
372 #define LDB_SYNTAX_DIRECTORY_STRING "1.3.6.1.4.1.1466.115.121.1.15"
375 LDAP attribute syntax for an integer
377 This is the well-known LDAP attribute syntax for an integer.
379 See <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
381 #define LDB_SYNTAX_INTEGER "1.3.6.1.4.1.1466.115.121.1.27"
384 LDAP attribute syntax for an octet string
386 This is the well-known LDAP attribute syntax for an octet string.
388 See <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
390 #define LDB_SYNTAX_OCTET_STRING "1.3.6.1.4.1.1466.115.121.1.40"
393 LDAP attribute syntax for UTC time.
395 This is the well-known LDAP attribute syntax for a UTC time.
397 See <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
399 #define LDB_SYNTAX_UTC_TIME "1.3.6.1.4.1.1466.115.121.1.53"
401 #define LDB_SYNTAX_OBJECTCLASS "LDB_SYNTAX_OBJECTCLASS"
403 /* sorting helpers */
404 typedef int (*ldb_qsort_cmp_fn_t) (void *v1, void *v2, void *opaque);
407 OID for the paged results control. This control is included in the
408 searchRequest and searchResultDone messages as part of the controls
409 field of the LDAPMessage, as defined in Section 4.1.12 of
412 \sa <a href="http://www.ietf.org/rfc/rfc2696.txt">RFC 2696</a>.
414 #define LDB_CONTROL_PAGED_RESULTS_OID "1.2.840.113556.1.4.319"
419 \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>
421 #define LDB_CONTROL_NOTIFICATION_OID "1.2.840.113556.1.4.528"
426 \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>
428 #define LDB_CONTROL_EXTENDED_DN_OID "1.2.840.113556.1.4.529"
431 OID for LDAP server sort result extension.
433 This control is included in the searchRequest message as part of
434 the controls field of the LDAPMessage, as defined in Section 4.1.12
435 of LDAP v3. The controlType is set to
436 "1.2.840.113556.1.4.473". The criticality MAY be either TRUE or
437 FALSE (where absent is also equivalent to FALSE) at the client's
440 \sa <a href="http://www.ietf.org/rfc/rfc2891.txt">RFC 2891</a>.
442 #define LDB_CONTROL_SERVER_SORT_OID "1.2.840.113556.1.4.473"
445 OID for LDAP server sort result response extension.
447 This control is included in the searchResultDone message as part of
448 the controls field of the LDAPMessage, as defined in Section 4.1.12 of
451 \sa <a href="http://www.ietf.org/rfc/rfc2891.txt">RFC 2891</a>.
453 #define LDB_CONTROL_SORT_RESP_OID "1.2.840.113556.1.4.474"
456 OID for LDAP Attribute Scoped Query extension.
458 This control is included in SearchRequest or SearchResponse
459 messages as part of the controls field of the LDAPMessage.
461 #define LDB_CONTROL_ASQ_OID "1.2.840.113556.1.4.1504"
464 OID for LDAP Directory Sync extension.
466 This control is included in SearchRequest or SearchResponse
467 messages as part of the controls field of the LDAPMessage.
469 #define LDB_CONTROL_DIRSYNC_OID "1.2.840.113556.1.4.841"
473 OID for LDAP Virtual List View Request extension.
475 This control is included in SearchRequest messages
476 as part of the controls field of the LDAPMessage.
478 #define LDB_CONTROL_VLV_REQ_OID "2.16.840.1.113730.3.4.9"
481 OID for LDAP Virtual List View Response extension.
483 This control is included in SearchResponse messages
484 as part of the controls field of the LDAPMessage.
486 #define LDB_CONTROL_VLV_RESP_OID "2.16.840.1.113730.3.4.10"
488 struct ldb_paged_control {
494 struct ldb_extended_dn_control {
498 struct ldb_server_sort_control {
504 struct ldb_sort_resp_control {
509 struct ldb_asq_control {
511 char *source_attribute;
516 struct ldb_dirsync_control {
523 struct ldb_vlv_req_control {
541 struct ldb_vlv_resp_control {
555 struct ldb_credentials;
557 enum ldb_request_type {
572 enum ldb_reply_type {
578 enum ldb_async_wait_type {
583 enum ldb_async_state {
590 struct ldb_message **msgs;
592 struct ldb_control **controls;
595 struct ldb_async_result {
596 enum ldb_reply_type type;
597 struct ldb_message *message;
599 struct ldb_control **controls;
602 struct ldb_async_handle {
604 enum ldb_async_state state;
609 const struct ldb_dn *base;
610 enum ldb_scope scope;
611 struct ldb_parse_tree *tree;
612 const char * const *attrs;
613 struct ldb_result *res;
617 const struct ldb_message *message;
621 const struct ldb_message *message;
625 const struct ldb_dn *dn;
629 const struct ldb_dn *olddn;
630 const struct ldb_dn *newdn;
633 struct ldb_register_control {
642 struct ldb_search search;
644 struct ldb_modify mod;
645 struct ldb_delete del;
646 struct ldb_rename rename;
647 struct ldb_register_control reg;
650 struct ldb_control **controls;
651 struct ldb_credentials *creds;
655 int (*callback)(struct ldb_context *, void *, struct ldb_async_result *);
658 struct ldb_async_handle *handle;
662 int ldb_request(struct ldb_context *ldb, struct ldb_request *request);
664 int ldb_async_wait(struct ldb_context *ldb, struct ldb_async_handle *handle, enum ldb_async_wait_type type);
667 Initialise an ldb context
669 This is required before any other LDB call.
671 \param mem_ctx pointer to a talloc memory context. Pass NULL if there is
672 no suitable context available.
674 \return pointer to ldb_context that should be free'd (using talloc_free())
675 at the end of the program.
677 struct ldb_context *ldb_init(void *mem_ctx);
680 Connect to a database.
682 This is typically called soon after ldb_init(), and is required prior to
683 any search or database modification operations.
685 The URL can be one of the following forms:
691 \param ldb the context associated with the database (from ldb_init())
692 \param url the URL of the database to connect to, as noted above
693 \param flags a combination of LDB_FLG_* to modify the connection behaviour
694 \param options backend specific options - passed uninterpreted to the backend
696 \return result code (LDB_SUCCESS on success, or a failure code)
698 \note It is an error to connect to a database that does not exist in readonly mode
699 (that is, with LDB_FLG_RDONLY). However in read-write mode, the database will be
700 created if it does not exist.
702 int ldb_connect(struct ldb_context *ldb, const char *url, unsigned int flags, const char *options[]);
707 This function searches the database, and returns
708 records that match an LDAP-like search expression
710 \param ldb the context associated with the database (from ldb_init())
711 \param base the Base Distinguished Name for the query (pass NULL for root DN)
712 \param scope the search scope for the query
713 \param expression the search expression to use for this query
714 \param attrs the search attributes for the query (pass NULL if none required)
715 \param res the return result
717 \return result code (LDB_SUCCESS on success, or a failure code)
719 \note use talloc_free() to free the ldb_result returned
721 int ldb_search(struct ldb_context *ldb,
722 const struct ldb_dn *base,
723 enum ldb_scope scope,
724 const char *expression,
725 const char * const *attrs, struct ldb_result **res);
728 like ldb_search() but takes a parse tree
730 int ldb_search_bytree(struct ldb_context *ldb,
731 const struct ldb_dn *base,
732 enum ldb_scope scope,
733 struct ldb_parse_tree *tree,
734 const char * const *attrs, struct ldb_result **res);
737 Add a record to the database.
739 This function adds a record to the database. This function will fail
740 if a record with the specified class and key already exists in the
743 \param ldb the context associated with the database (from
745 \param message the message containing the record to add.
747 \return result code (LDB_SUCCESS if the record was added, otherwise
750 int ldb_add(struct ldb_context *ldb,
751 const struct ldb_message *message);
754 Modify the specified attributes of a record
756 This function modifies a record that is in the database.
758 \param ldb the context associated with the database (from
760 \param message the message containing the changes required.
762 \return result code (LDB_SUCCESS if the record was modified as
763 requested, otherwise a failure code)
765 int ldb_modify(struct ldb_context *ldb,
766 const struct ldb_message *message);
769 Rename a record in the database
771 This function renames a record in the database.
773 \param ldb the context associated with the database (from
775 \param olddn the DN for the record to be renamed.
776 \param newdn the new DN
778 \return result code (LDB_SUCCESS if the record was renamed as
779 requested, otherwise a failure code)
781 int ldb_rename(struct ldb_context *ldb, const struct ldb_dn *olddn, const struct ldb_dn *newdn);
784 Delete a record from the database
786 This function deletes a record from the database.
788 \param ldb the context associated with the database (from
790 \param dn the DN for the record to be deleted.
792 \return result code (LDB_SUCCESS if the record was deleted,
793 otherwise a failure code)
795 int ldb_delete(struct ldb_context *ldb, const struct ldb_dn *dn);
800 int ldb_transaction_start(struct ldb_context *ldb);
805 int ldb_transaction_commit(struct ldb_context *ldb);
810 int ldb_transaction_cancel(struct ldb_context *ldb);
814 return extended error information from the last call
816 const char *ldb_errstring(struct ldb_context *ldb);
819 setup the default utf8 functions
820 FIXME: these functions do not yet handle utf8
822 void ldb_set_utf8_default(struct ldb_context *ldb);
827 \param ldb the ldb context
828 \param mem_ctx the memory context to allocate the result string
830 \param s the string that is to be folded
831 \return a copy of the string, converted to upper case
833 \note The default function is not yet UTF8 aware. Provide your own
834 set of functions through ldb_set_utf8_fns()
836 char *ldb_casefold(struct ldb_context *ldb, void *mem_ctx, const char *s);
839 Check the attribute name is valid according to rfc2251
840 \param s tthe string to check
842 \return 1 if the name is ok
844 int ldb_valid_attr_name(const char *s);
847 ldif manipulation functions
850 Write an LDIF message
852 This function writes an LDIF message using a caller supplied write
855 \param ldb the ldb context (from ldb_init())
856 \param fprintf_fn a function pointer for the write function. This must take
857 a private data pointer, followed by a format string, and then a variable argument
859 \param private_data pointer that will be provided back to the write
860 function. This is useful for maintaining state or context.
861 \param ldif the message to write out
863 \return the total number of bytes written, or an error code as returned
864 from the write function.
866 \sa ldb_ldif_write_file for a more convenient way to write to a
869 \sa ldb_ldif_read for the reader equivalent to this function.
871 int ldb_ldif_write(struct ldb_context *ldb,
872 int (*fprintf_fn)(void *, const char *, ...),
874 const struct ldb_ldif *ldif);
877 Clean up an LDIF message
879 This function cleans up a LDIF message read using ldb_ldif_read()
880 or related functions (such as ldb_ldif_read_string() and
881 ldb_ldif_read_file().
883 \param ldb the ldb context (from ldb_init())
884 \param msg the message to clean up and free
887 void ldb_ldif_read_free(struct ldb_context *ldb, struct ldb_ldif *msg);
892 This function creates an LDIF message using a caller supplied read
895 \param ldb the ldb context (from ldb_init())
896 \param fgetc_fn a function pointer for the read function. This must
897 take a private data pointer, and must return a pointer to an
898 integer corresponding to the next byte read (or EOF if there is no
899 more data to be read).
900 \param private_data pointer that will be provided back to the read
901 function. This is udeful for maintaining state or context.
903 \return the LDIF message that has been read in
905 \note You must free the LDIF message when no longer required, using
906 ldb_ldif_read_free().
908 \sa ldb_ldif_read_file for a more convenient way to read from a
911 \sa ldb_ldif_read_string for a more convenient way to read from a
914 \sa ldb_ldif_write for the writer equivalent to this function.
916 struct ldb_ldif *ldb_ldif_read(struct ldb_context *ldb,
917 int (*fgetc_fn)(void *), void *private_data);
920 Read an LDIF message from a file
922 This function reads the next LDIF message from the contents of a
923 file stream. If you want to get all of the LDIF messages, you will
924 need to repeatedly call this function, until it returns NULL.
926 \param ldb the ldb context (from ldb_init())
927 \param f the file stream to read from (typically from fdopen())
929 \sa ldb_ldif_read_string for an equivalent function that will read
930 from a string (char array).
932 \sa ldb_ldif_write_file for the writer equivalent to this function.
935 struct ldb_ldif *ldb_ldif_read_file(struct ldb_context *ldb, FILE *f);
938 Read an LDIF message from a string
940 This function reads the next LDIF message from the contents of a char
941 array. If you want to get all of the LDIF messages, you will need
942 to repeatedly call this function, until it returns NULL.
944 \param ldb the ldb context (from ldb_init())
945 \param s pointer to the char array to read from
947 \sa ldb_ldif_read_file for an equivalent function that will read
950 \sa ldb_ldif_write for a more general (arbitrary read function)
951 version of this function.
953 struct ldb_ldif *ldb_ldif_read_string(struct ldb_context *ldb, const char **s);
956 Write an LDIF message to a file
958 \param ldb the ldb context (from ldb_init())
959 \param f the file stream to write to (typically from fdopen())
960 \param msg the message to write out
962 \return the total number of bytes written, or a negative error code
964 \sa ldb_ldif_read_file for the reader equivalent to this function.
966 int ldb_ldif_write_file(struct ldb_context *ldb, FILE *f, const struct ldb_ldif *msg);
969 Base64 encode a buffer
971 \param mem_ctx the memory context that the result is allocated
973 \param buf pointer to the array that is to be encoded
974 \param len the number of elements in the array to be encoded
976 \return pointer to an array containing the encoded data
978 \note The caller is responsible for freeing the result
980 char *ldb_base64_encode(void *mem_ctx, const char *buf, int len);
983 Base64 decode a buffer
985 This function decodes a base64 encoded string in place.
987 \param s the string to decode.
989 \return the length of the returned (decoded) string.
991 \note the string is null terminated, but the null terminator is not
992 included in the length.
994 int ldb_base64_decode(char *s);
996 int ldb_attrib_add_handlers(struct ldb_context *ldb,
997 const struct ldb_attrib_handler *handlers,
998 unsigned num_handlers);
1000 /* The following definitions come from lib/ldb/common/ldb_dn.c */
1002 int ldb_dn_is_special(const struct ldb_dn *dn);
1003 int ldb_dn_check_special(const struct ldb_dn *dn, const char *check);
1004 char *ldb_dn_escape_value(void *mem_ctx, struct ldb_val value);
1005 struct ldb_dn *ldb_dn_new(void *mem_ctx);
1006 struct ldb_dn *ldb_dn_explode(void *mem_ctx, const char *dn);
1007 struct ldb_dn *ldb_dn_explode_or_special(void *mem_ctx, const char *dn);
1008 char *ldb_dn_linearize(void *mem_ctx, const struct ldb_dn *edn);
1009 char *ldb_dn_linearize_casefold(struct ldb_context *ldb, const struct ldb_dn *edn);
1010 int ldb_dn_compare_base(struct ldb_context *ldb, const struct ldb_dn *base, const struct ldb_dn *dn);
1011 int ldb_dn_compare(struct ldb_context *ldb, const struct ldb_dn *edn0, const struct ldb_dn *edn1);
1012 struct ldb_dn *ldb_dn_casefold(struct ldb_context *ldb, const struct ldb_dn *edn);
1013 struct ldb_dn *ldb_dn_explode_casefold(struct ldb_context *ldb, const char *dn);
1014 struct ldb_dn *ldb_dn_copy_partial(void *mem_ctx, const struct ldb_dn *dn, int num_el);
1015 struct ldb_dn *ldb_dn_copy(void *mem_ctx, const struct ldb_dn *dn);
1016 struct ldb_dn *ldb_dn_get_parent(void *mem_ctx, const struct ldb_dn *dn);
1017 struct ldb_dn_component *ldb_dn_build_component(void *mem_ctx, const char *attr,
1019 struct ldb_dn *ldb_dn_build_child(void *mem_ctx, const char *attr,
1021 const struct ldb_dn *base);
1022 struct ldb_dn *ldb_dn_make_child(void *mem_ctx,
1023 const struct ldb_dn_component *component,
1024 const struct ldb_dn *base);
1025 struct ldb_dn *ldb_dn_compose(void *mem_ctx, const struct ldb_dn *dn1, const struct ldb_dn *dn2);
1026 struct ldb_dn *ldb_dn_string_compose(void *mem_ctx, const struct ldb_dn *base, const char *child_fmt, ...) PRINTF_ATTRIBUTE(3,4);
1027 struct ldb_dn_component *ldb_dn_get_rdn(void *mem_ctx, const struct ldb_dn *dn);
1029 /* useful functions for ldb_message structure manipulation */
1030 int ldb_dn_cmp(struct ldb_context *ldb, const char *dn1, const char *dn2);
1033 Compare two attributes
1035 This function compares to attribute names. Note that this is a
1036 case-insensitive comparison.
1038 \param attr1 the first attribute name to compare
1039 \param attr2 the second attribute name to compare
1041 \return 0 if the attribute names are the same, or only differ in
1042 case; non-zero if there are any differences
1044 int ldb_attr_cmp(const char *attr1, const char *attr2);
1045 char *ldb_attr_casefold(void *mem_ctx, const char *s);
1046 int ldb_attr_dn(const char *attr);
1047 char *ldb_dn_escape_value(void *mem_ctx, struct ldb_val value);
1050 Create an empty message
1052 \param mem_ctx the memory context to create in. You can pass NULL
1053 to get the top level context, however the ldb context (from
1054 ldb_init()) may be a better choice
1056 struct ldb_message *ldb_msg_new(void *mem_ctx);
1059 Find an element within an message
1061 struct ldb_message_element *ldb_msg_find_element(const struct ldb_message *msg,
1062 const char *attr_name);
1065 Compare two ldb_val values
1067 \param v1 first ldb_val structure to be tested
1068 \param v2 second ldb_val structure to be tested
1070 \return 1 for a match, 0 if there is any difference
1072 int ldb_val_equal_exact(const struct ldb_val *v1, const struct ldb_val *v2);
1075 find a value within an ldb_message_element
1077 \param el the element to search
1078 \param val the value to search for
1080 \note This search is case sensitive
1082 struct ldb_val *ldb_msg_find_val(const struct ldb_message_element *el,
1083 struct ldb_val *val);
1086 add a new empty element to a ldb_message
1088 int ldb_msg_add_empty(struct ldb_message *msg, const char *attr_name, int flags);
1091 add a element to a ldb_message
1093 int ldb_msg_add(struct ldb_message *msg,
1094 const struct ldb_message_element *el,
1096 int ldb_msg_add_value(struct ldb_message *msg,
1097 const char *attr_name,
1098 const struct ldb_val *val);
1099 int ldb_msg_add_string(struct ldb_message *msg,
1100 const char *attr_name, const char *str);
1101 int ldb_msg_add_fmt(struct ldb_message *msg,
1102 const char *attr_name, const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1105 compare two message elements - return 0 on match
1107 int ldb_msg_element_compare(struct ldb_message_element *el1,
1108 struct ldb_message_element *el2);
1111 Find elements in a message.
1113 This function finds elements and converts to a specific type, with
1114 a give default value if not found. Assumes that elements are
1117 const struct ldb_val *ldb_msg_find_ldb_val(const struct ldb_message *msg, const char *attr_name);
1118 int ldb_msg_find_int(const struct ldb_message *msg,
1119 const char *attr_name,
1121 unsigned int ldb_msg_find_uint(const struct ldb_message *msg,
1122 const char *attr_name,
1123 unsigned int default_value);
1124 int64_t ldb_msg_find_int64(const struct ldb_message *msg,
1125 const char *attr_name,
1126 int64_t default_value);
1127 uint64_t ldb_msg_find_uint64(const struct ldb_message *msg,
1128 const char *attr_name,
1129 uint64_t default_value);
1130 double ldb_msg_find_double(const struct ldb_message *msg,
1131 const char *attr_name,
1132 double default_value);
1133 const char *ldb_msg_find_string(const struct ldb_message *msg,
1134 const char *attr_name,
1135 const char *default_value);
1137 void ldb_msg_sort_elements(struct ldb_message *msg);
1139 struct ldb_message *ldb_msg_copy_shallow(void *mem_ctx,
1140 const struct ldb_message *msg);
1141 struct ldb_message *ldb_msg_copy(void *mem_ctx,
1142 const struct ldb_message *msg);
1144 struct ldb_message *ldb_msg_canonicalize(struct ldb_context *ldb,
1145 const struct ldb_message *msg);
1148 struct ldb_message *ldb_msg_diff(struct ldb_context *ldb,
1149 struct ldb_message *msg1,
1150 struct ldb_message *msg2);
1153 Integrity check an ldb_message
1155 This function performs basic sanity / integrity checks on an
1158 \param msg the message to check
1160 \return LDB_SUCCESS if the message is OK, or a non-zero error code
1161 (one of LDB_ERR_INVALID_DN_SYNTAX, LDB_ERR_ENTRY_ALREADY_EXISTS or
1162 LDB_ERR_INVALID_ATTRIBUTE_SYNTAX) if there is a problem with a
1165 int ldb_msg_sanity_check(const struct ldb_message *msg);
1168 Duplicate an ldb_val structure
1170 This function copies an ldb value structure.
1172 \param mem_ctx the memory context that the duplicated value will be
1174 \param v the ldb_val to be duplicated.
1176 \return the duplicated ldb_val structure.
1178 struct ldb_val ldb_val_dup(void *mem_ctx, const struct ldb_val *v);
1181 this allows the user to set a debug function for error reporting
1183 int ldb_set_debug(struct ldb_context *ldb,
1184 void (*debug)(void *context, enum ldb_debug_level level,
1185 const char *fmt, va_list ap),
1189 this allows the user to set custom utf8 function for error reporting
1191 void ldb_set_utf8_fns(struct ldb_context *ldb,
1193 char *(*casefold)(void *, void *, const char *));
1196 this sets up debug to print messages on stderr
1198 int ldb_set_debug_stderr(struct ldb_context *ldb);
1200 /* control backend specific opaque values */
1201 int ldb_set_opaque(struct ldb_context *ldb, const char *name, void *value);
1202 void *ldb_get_opaque(struct ldb_context *ldb, const char *name);
1204 const struct ldb_attrib_handler *ldb_attrib_handler(struct ldb_context *ldb,
1205 const char *attrib);
1208 const char **ldb_attr_list_copy(void *mem_ctx, const char * const *attrs);
1209 int ldb_attr_in_list(const char * const *attrs, const char *attr);
1212 void ldb_parse_tree_attr_replace(struct ldb_parse_tree *tree,
1214 const char *replace);
1216 int ldb_msg_rename_attr(struct ldb_message *msg, const char *attr, const char *replace);
1217 int ldb_msg_copy_attr(struct ldb_message *msg, const char *attr, const char *replace);
1218 void ldb_msg_remove_attr(struct ldb_message *msg, const char *attr);
1221 Convert a time structure to a string
1223 This function converts a time_t structure to an LDAP formatted time
1226 \param mem_ctx the memory context to allocate the return string in
1227 \param t the time structure to convert
1229 \return the formatted string, or NULL if the time structure could
1232 char *ldb_timestring(void *mem_ctx, time_t t);
1235 Convert a string to a time structure
1237 This function converts an LDAP formatted time string to a time_t
1240 \param s the string to convert
1242 \return the time structure, or 0 if the string cannot be converted
1244 time_t ldb_string_to_time(const char *s);
1246 char *ldb_dn_canonical_string(void *mem_ctx, const struct ldb_dn *dn);
1247 char *ldb_dn_canonical_ex_string(void *mem_ctx, const struct ldb_dn *dn);
1250 void ldb_qsort (void *const pbase, size_t total_elems, size_t size, void *opaque, ldb_qsort_cmp_fn_t cmp);