4 Copyright (C) Andrew Tridgell 2004
5 Copyright (C) Stefan Metzmacher 2004
6 Copyright (C) Simo Sorce 2005
8 ** NOTE! The following LGPL license applies to the ldb
9 ** library. This does NOT imply that all of Samba is released
12 This library is free software; you can redistribute it and/or
13 modify it under the terms of the GNU Lesser General Public
14 License as published by the Free Software Foundation; either
15 version 2 of the License, or (at your option) any later version.
17 This library is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 Lesser General Public License for more details.
22 You should have received a copy of the GNU Lesser General Public
23 License along with this library; if not, write to the Free Software
24 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
30 * Component: ldb header
32 * Description: defines for base ldb API
34 * Author: Andrew Tridgell
35 * Author: Stefan Metzmacher
39 \file ldb.h Samba's ldb database
41 This header file provides the main API for ldb.
46 /*! \cond DOXYGEN_IGNORE */
51 major restrictions as compared to normal LDAP:
54 - each record must have a unique key field
55 - the key must be representable as a NULL terminated C string and may not
56 contain a comma or braces
58 major restrictions as compared to tdb:
60 - no explicit locking calls
61 UPDATE: we have transactions now, better than locking --SSS.
69 An individual lump of data in a result comes in this format. The
70 pointer will usually be to a UTF-8 string if the application is
71 sensible, but it can be to anything you like, including binary data
72 blobs of arbitrary size.
74 \note the data is null (0x00) terminated, but the length does not
75 include the terminator.
78 uint8_t *data; /*!< result data */
79 size_t length; /*!< length of data */
83 /*! \cond DOXYGEN_IGNORE */
84 #ifndef PRINTF_ATTRIBUTE
85 #define PRINTF_ATTRIBUTE(a,b)
90 internal ldb exploded dn structures
92 struct ldb_dn_component {
99 struct ldb_dn_component *components;
103 There are a number of flags that are used with ldap_modify() in
104 ldb_message_element.flags fields. The LDA_FLAGS_MOD_ADD,
105 LDA_FLAGS_MOD_DELETE and LDA_FLAGS_MOD_REPLACE flags are used in
106 ldap_modify() calls to specify whether attributes are being added,
107 deleted or modified respectively.
109 #define LDB_FLAG_MOD_MASK 0x3
112 Flag value used in ldap_modify() to indicate that attributes are
115 \sa LDB_FLAG_MOD_MASK
117 #define LDB_FLAG_MOD_ADD 1
120 Flag value used in ldap_modify() to indicate that attributes are
123 \sa LDB_FLAG_MOD_MASK
125 #define LDB_FLAG_MOD_REPLACE 2
128 Flag value used in ldap_modify() to indicate that attributes are
131 \sa LDB_FLAG_MOD_MASK
133 #define LDB_FLAG_MOD_DELETE 3
136 OID for logic AND comaprison.
138 This is the well known object ID for a logical AND comparitor.
140 #define LDB_OID_COMPARATOR_AND "1.2.840.113556.1.4.803"
143 OID for logic OR comparison.
145 This is the well known object ID for a logical OR comparitor.
147 #define LDB_OID_COMPARATOR_OR "1.2.840.113556.1.4.804"
150 results are given back as arrays of ldb_message_element
152 struct ldb_message_element {
155 unsigned int num_values;
156 struct ldb_val *values;
161 a ldb_message represents all or part of a record. It can contain an arbitrary
166 unsigned int num_elements;
167 struct ldb_message_element *elements;
168 void *private_data; /* private to the backend */
171 enum ldb_changetype {
172 LDB_CHANGETYPE_NONE=0,
174 LDB_CHANGETYPE_DELETE,
175 LDB_CHANGETYPE_MODIFY
181 This structure contains a LDIF record, as returned from ldif_read()
182 and equivalent functions.
185 enum ldb_changetype changetype; /*!< The type of change */
186 struct ldb_message *msg; /*!< The changes */
189 enum ldb_scope {LDB_SCOPE_DEFAULT=-1,
191 LDB_SCOPE_ONELEVEL=1,
192 LDB_SCOPE_SUBTREE=2};
197 the fuction type for the callback used in traversing the database
199 typedef int (*ldb_traverse_fn)(struct ldb_context *, const struct ldb_message *);
202 /* debugging uses one of the following levels */
203 enum ldb_debug_level {LDB_DEBUG_FATAL, LDB_DEBUG_ERROR,
204 LDB_DEBUG_WARNING, LDB_DEBUG_TRACE};
207 the user can optionally supply a debug function. The function
208 is based on the vfprintf() style of interface, but with the addition
211 struct ldb_debug_ops {
212 void (*debug)(void *context, enum ldb_debug_level level,
213 const char *fmt, va_list ap) PRINTF_ATTRIBUTE(3,0);
218 The user can optionally supply a custom utf8 functions,
219 to handle comparisons and casefolding.
221 struct ldb_utf8_fns {
223 char *(*casefold)(void *context, void *mem_ctx, const char *s);
227 Flag value for database connection mode.
229 If LDB_FLG_RDONLY is used in ldb_connect, then the database will be
230 opened read-only, if possible.
232 #define LDB_FLG_RDONLY 1
235 Flag value for database connection mode.
237 If LDB_FLG_NOSYNC is used in ldb_connect, then the database will be
238 opened without synchronous operations, if possible.
240 #define LDB_FLG_NOSYNC 2
243 Flag value to specify autoreconnect mode.
245 If LDB_FLG_RECONNECT is used in ldb_connect, then the backend will
246 be opened in a way that makes it try to auto reconnect if the
247 connection is dropped (actually make sense only with ldap).
249 #define LDB_FLG_RECONNECT 4
252 structures for ldb_parse_tree handling code
254 enum ldb_parse_op { LDB_OP_AND=1, LDB_OP_OR=2, LDB_OP_NOT=3,
255 LDB_OP_EQUALITY=4, LDB_OP_SUBSTRING=5,
256 LDB_OP_GREATER=6, LDB_OP_LESS=7, LDB_OP_PRESENT=8,
257 LDB_OP_APPROX=9, LDB_OP_EXTENDED=10 };
259 struct ldb_parse_tree {
260 enum ldb_parse_op operation;
263 struct ldb_parse_tree *child;
267 struct ldb_val value;
271 int start_with_wildcard;
272 int end_with_wildcard;
273 struct ldb_val **chunks;
280 struct ldb_val value;
286 struct ldb_val value;
289 unsigned int num_elements;
290 struct ldb_parse_tree **elements;
295 struct ldb_parse_tree *ldb_parse_tree(void *mem_ctx, const char *s);
296 char *ldb_filter_from_tree(void *mem_ctx, struct ldb_parse_tree *tree);
301 This function encodes a binary blob using the encoding rules in RFC
302 2254 (Section 4). This function also escapes any non-printable
305 \param ctx the memory context to allocate the return string in.
306 \param val the (potentially) binary data to be encoded
308 \return the encoded data as a null terminated string
310 \sa <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>.
312 char *ldb_binary_encode(void *ctx, struct ldb_val val);
317 This function encodes a string using the encoding rules in RFC 2254
318 (Section 4). This function also escapes any non-printable
321 \param mem_ctx the memory context to allocate the return string in.
322 \param string the string to be encoded
324 \return the encoded data as a null terminated string
326 \sa <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>.
328 char *ldb_binary_encode_string(void *mem_ctx, const char *string);
331 functions for controlling attribute handling
333 typedef int (*ldb_attr_handler_t)(struct ldb_context *, void *mem_ctx, const struct ldb_val *, struct ldb_val *);
334 typedef int (*ldb_attr_comparison_t)(struct ldb_context *, void *mem_ctx, const struct ldb_val *, const struct ldb_val *);
336 struct ldb_attrib_handler {
339 /* LDB_ATTR_FLAG_* */
342 /* convert from ldif to binary format */
343 ldb_attr_handler_t ldif_read_fn;
345 /* convert from binary to ldif format */
346 ldb_attr_handler_t ldif_write_fn;
348 /* canonicalise a value, for use by indexing and dn construction */
349 ldb_attr_handler_t canonicalise_fn;
351 /* compare two values */
352 ldb_attr_comparison_t comparison_fn;
356 The attribute is not returned by default
358 #define LDB_ATTR_FLAG_HIDDEN (1<<0)
360 /* the attribute handler name should be freed when released */
361 #define LDB_ATTR_FLAG_ALLOCATED (1<<1)
364 The attribute is constructed from other attributes
366 #define LDB_ATTR_FLAG_CONSTRUCTED (1<<1)
369 LDAP attribute syntax for a DN
371 This is the well-known LDAP attribute syntax for a DN.
373 See <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
375 #define LDB_SYNTAX_DN "1.3.6.1.4.1.1466.115.121.1.12"
378 LDAP attribute syntax for a Directory String
380 This is the well-known LDAP attribute syntax for a Directory String.
382 \sa <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
384 #define LDB_SYNTAX_DIRECTORY_STRING "1.3.6.1.4.1.1466.115.121.1.15"
387 LDAP attribute syntax for an integer
389 This is the well-known LDAP attribute syntax for an integer.
391 See <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
393 #define LDB_SYNTAX_INTEGER "1.3.6.1.4.1.1466.115.121.1.27"
396 LDAP attribute syntax for an octet string
398 This is the well-known LDAP attribute syntax for an octet string.
400 See <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
402 #define LDB_SYNTAX_OCTET_STRING "1.3.6.1.4.1.1466.115.121.1.40"
405 LDAP attribute syntax for UTC time.
407 This is the well-known LDAP attribute syntax for a UTC time.
409 See <a href="http://www.ietf.org/rfc/rfc2252.txt">RFC 2252</a>, Section 4.3.2
411 #define LDB_SYNTAX_UTC_TIME "1.3.6.1.4.1.1466.115.121.1.53"
413 #define LDB_SYNTAX_OBJECTCLASS "LDB_SYNTAX_OBJECTCLASS"
415 /* sorting helpers */
416 typedef int (*ldb_qsort_cmp_fn_t) (void *v1, void *v2, void *opaque);
419 OID for the paged results control. This control is included in the
420 searchRequest and searchResultDone messages as part of the controls
421 field of the LDAPMessage, as defined in Section 4.1.12 of
424 \sa <a href="http://www.ietf.org/rfc/rfc2696.txt">RFC 2696</a>.
426 #define LDB_CONTROL_PAGED_RESULTS_OID "1.2.840.113556.1.4.319"
429 OID for specifying the returned elements of the ntSecurityDescriptor
431 \sa <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/ldap/ldap/ldap_server_sd_flags_oid.asp">Microsoft documentation of this OID</a>
433 #define LDB_CONTROL_SD_FLAGS_OID "1.2.840.113556.1.4.801"
436 OID for specifying an advanced scope for the search (one partition)
438 \sa <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/ldap/ldap/ldap_server_domain_scope_oid.asp">Microsoft documentation of this OID</a>
440 #define LDB_CONTROL_DOMAIN_SCOPE_OID "1.2.840.113556.1.4.1339"
443 OID for specifying an advanced scope for a search
445 \sa <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/ldap/ldap/ldap_server_search_options_oid.asp">Microsoft documentation of this OID</a>
447 #define LDB_CONTROL_SEARCH_OPTIONS_OID "1.2.840.113556.1.4.1340"
452 \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>
454 #define LDB_CONTROL_NOTIFICATION_OID "1.2.840.113556.1.4.528"
457 OID for getting deleted objects
459 \sa <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/ldap/ldap/ldap_server_show_deleted_oid.asp">Microsoft documentation of this OID</a>
461 #define LDB_CONTROL_SHOW_DELETED_OID "1.2.840.113556.1.4.417"
466 \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>
468 #define LDB_CONTROL_EXTENDED_DN_OID "1.2.840.113556.1.4.529"
471 OID for LDAP server sort result extension.
473 This control is included in the searchRequest message as part of
474 the controls field of the LDAPMessage, as defined in Section 4.1.12
475 of LDAP v3. The controlType is set to
476 "1.2.840.113556.1.4.473". The criticality MAY be either TRUE or
477 FALSE (where absent is also equivalent to FALSE) at the client's
480 \sa <a href="http://www.ietf.org/rfc/rfc2891.txt">RFC 2891</a>.
482 #define LDB_CONTROL_SERVER_SORT_OID "1.2.840.113556.1.4.473"
485 OID for LDAP server sort result response extension.
487 This control is included in the searchResultDone message as part of
488 the controls field of the LDAPMessage, as defined in Section 4.1.12 of
491 \sa <a href="http://www.ietf.org/rfc/rfc2891.txt">RFC 2891</a>.
493 #define LDB_CONTROL_SORT_RESP_OID "1.2.840.113556.1.4.474"
496 OID for LDAP Attribute Scoped Query extension.
498 This control is included in SearchRequest or SearchResponse
499 messages as part of the controls field of the LDAPMessage.
501 #define LDB_CONTROL_ASQ_OID "1.2.840.113556.1.4.1504"
504 OID for LDAP Directory Sync extension.
506 This control is included in SearchRequest or SearchResponse
507 messages as part of the controls field of the LDAPMessage.
509 #define LDB_CONTROL_DIRSYNC_OID "1.2.840.113556.1.4.841"
513 OID for LDAP Virtual List View Request extension.
515 This control is included in SearchRequest messages
516 as part of the controls field of the LDAPMessage.
518 #define LDB_CONTROL_VLV_REQ_OID "2.16.840.1.113730.3.4.9"
521 OID for LDAP Virtual List View Response extension.
523 This control is included in SearchResponse messages
524 as part of the controls field of the LDAPMessage.
526 #define LDB_CONTROL_VLV_RESP_OID "2.16.840.1.113730.3.4.10"
529 OID to let modifies don't give an error when adding an existing
530 attribute with the same value or deleting an nonexisting one attribute
532 \sa <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/ldap/ldap/ldap_server_permissive_modify_oid.asp">Microsoft documentation of this OID</a>
534 #define LDB_CONTROL_PERMISSIVE_MODIFY_OID "1.2.840.113556.1.4.1413"
537 OID for LDAP Extended Operation START_TLS.
539 This Extended operation is used to start a new TLS
540 channel on top of a clear text channel.
542 #define LDB_EXTENDED_START_TLS_OID "1.3.6.1.4.1.1466.20037"
545 OID for LDAP Extended Operation START_TLS.
547 This Extended operation is used to start a new TLS
548 channel on top of a clear text channel.
550 #define LDB_EXTENDED_DYNAMIC_OID "1.3.6.1.4.1.1466.101.119.1"
553 OID for LDAP Extended Operation START_TLS.
555 This Extended operation is used to start a new TLS
556 channel on top of a clear text channel.
558 #define LDB_EXTENDED_FAST_BIND_OID "1.2.840.113556.1.4.1781"
560 struct ldb_sd_flags_control {
562 * request the owner 0x00000001
563 * request the group 0x00000002
564 * request the DACL 0x00000004
565 * request the SACL 0x00000008
567 unsigned secinfo_flags;
570 struct ldb_search_options_control {
572 * DOMAIN_SCOPE 0x00000001
573 * this limits the search to one partition,
574 * and no referrals will be returned.
575 * (Note this doesn't limit the entries by there
576 * objectSid belonging to a domain! Builtin and Foreign Sids
577 * are still returned)
579 * PHANTOM_ROOT 0x00000002
580 * this search on the whole tree on a domain controller
581 * over multiple partitions without referrals.
582 * (This is the default behavior on the Global Catalog Port)
584 unsigned search_options;
587 struct ldb_paged_control {
593 struct ldb_extended_dn_control {
597 struct ldb_server_sort_control {
603 struct ldb_sort_resp_control {
608 struct ldb_asq_control {
610 char *source_attribute;
615 struct ldb_dirsync_control {
622 struct ldb_vlv_req_control {
640 struct ldb_vlv_resp_control {
654 enum ldb_request_type {
661 LDB_REQ_REGISTER_CONTROL,
662 LDB_REQ_REGISTER_PARTITION,
666 enum ldb_reply_type {
686 struct ldb_message **msgs;
688 struct ldb_control **controls;
691 struct ldb_extended {
698 enum ldb_reply_type type;
699 struct ldb_message *message;
700 struct ldb_extended *response;
702 struct ldb_control **controls;
707 enum ldb_state state;
709 struct ldb_module *module;
713 const struct ldb_dn *base;
714 enum ldb_scope scope;
715 const struct ldb_parse_tree *tree;
716 const char * const *attrs;
717 struct ldb_result *res;
721 const struct ldb_message *message;
725 const struct ldb_message *message;
729 const struct ldb_dn *dn;
733 const struct ldb_dn *olddn;
734 const struct ldb_dn *newdn;
737 struct ldb_register_control {
741 struct ldb_register_partition {
742 const struct ldb_dn *dn;
745 struct ldb_sequence_number {
746 enum ldb_sequence_type {
748 LDB_SEQ_HIGHEST_TIMESTAMP,
755 typedef int (*ldb_request_callback_t)(struct ldb_context *, void *, struct ldb_reply *);
758 enum ldb_request_type operation;
761 struct ldb_search search;
763 struct ldb_modify mod;
764 struct ldb_delete del;
765 struct ldb_rename rename;
766 struct ldb_register_control reg_control;
767 struct ldb_register_partition reg_partition;
768 struct ldb_sequence_number seq_num;
771 struct ldb_control **controls;
774 ldb_request_callback_t callback;
778 struct ldb_handle *handle;
781 int ldb_request(struct ldb_context *ldb, struct ldb_request *request);
783 int ldb_wait(struct ldb_handle *handle, enum ldb_wait_type type);
785 int ldb_set_timeout(struct ldb_context *ldb, struct ldb_request *req, int timeout);
786 int ldb_set_timeout_from_prev_req(struct ldb_context *ldb, struct ldb_request *oldreq, struct ldb_request *newreq);
787 void ldb_set_create_perms(struct ldb_context *ldb, unsigned int perms);
790 Initialise ldbs' global information
792 This is required before any other LDB call
794 \return 0 if initialisation succeeded, -1 otherwise
796 int ldb_global_init(void);
799 Initialise an ldb context
801 This is required before any other LDB call.
803 \param mem_ctx pointer to a talloc memory context. Pass NULL if there is
804 no suitable context available.
806 \return pointer to ldb_context that should be free'd (using talloc_free())
807 at the end of the program.
809 struct ldb_context *ldb_init(void *mem_ctx);
812 Connect to a database.
814 This is typically called soon after ldb_init(), and is required prior to
815 any search or database modification operations.
817 The URL can be one of the following forms:
823 \param ldb the context associated with the database (from ldb_init())
824 \param url the URL of the database to connect to, as noted above
825 \param flags a combination of LDB_FLG_* to modify the connection behaviour
826 \param options backend specific options - passed uninterpreted to the backend
828 \return result code (LDB_SUCCESS on success, or a failure code)
830 \note It is an error to connect to a database that does not exist in readonly mode
831 (that is, with LDB_FLG_RDONLY). However in read-write mode, the database will be
832 created if it does not exist.
834 int ldb_connect(struct ldb_context *ldb, const char *url, unsigned int flags, const char *options[]);
837 return an automatic baseDN from the defaultNamingContext of the rootDSE
838 This value have been set in an opaque pointer at connection time
840 const struct ldb_dn *ldb_get_default_basedn(struct ldb_context *ldb);
845 This function searches the database, and returns
846 records that match an LDAP-like search expression
848 \param ldb the context associated with the database (from ldb_init())
849 \param base the Base Distinguished Name for the query (pass NULL for root DN)
850 \param scope the search scope for the query
851 \param expression the search expression to use for this query
852 \param attrs the search attributes for the query (pass NULL if none required)
853 \param res the return result
855 \return result code (LDB_SUCCESS on success, or a failure code)
857 \note use talloc_free() to free the ldb_result returned
859 int ldb_search(struct ldb_context *ldb,
860 const struct ldb_dn *base,
861 enum ldb_scope scope,
862 const char *expression,
863 const char * const *attrs, struct ldb_result **res);
866 like ldb_search() but takes a parse tree
868 int ldb_search_bytree(struct ldb_context *ldb,
869 const struct ldb_dn *base,
870 enum ldb_scope scope,
871 struct ldb_parse_tree *tree,
872 const char * const *attrs, struct ldb_result **res);
875 Add a record to the database.
877 This function adds a record to the database. This function will fail
878 if a record with the specified class and key already exists in the
881 \param ldb the context associated with the database (from
883 \param message the message containing the record to add.
885 \return result code (LDB_SUCCESS if the record was added, otherwise
888 int ldb_add(struct ldb_context *ldb,
889 const struct ldb_message *message);
892 Modify the specified attributes of a record
894 This function modifies a record that is in the database.
896 \param ldb the context associated with the database (from
898 \param message the message containing the changes required.
900 \return result code (LDB_SUCCESS if the record was modified as
901 requested, otherwise a failure code)
903 int ldb_modify(struct ldb_context *ldb,
904 const struct ldb_message *message);
907 Rename a record in the database
909 This function renames a record in the database.
911 \param ldb the context associated with the database (from
913 \param olddn the DN for the record to be renamed.
914 \param newdn the new DN
916 \return result code (LDB_SUCCESS if the record was renamed as
917 requested, otherwise a failure code)
919 int ldb_rename(struct ldb_context *ldb, const struct ldb_dn *olddn, const struct ldb_dn *newdn);
922 Delete a record from the database
924 This function deletes a record from the database.
926 \param ldb the context associated with the database (from
928 \param dn the DN for the record to be deleted.
930 \return result code (LDB_SUCCESS if the record was deleted,
931 otherwise a failure code)
933 int ldb_delete(struct ldb_context *ldb, const struct ldb_dn *dn);
938 int ldb_transaction_start(struct ldb_context *ldb);
943 int ldb_transaction_commit(struct ldb_context *ldb);
948 int ldb_transaction_cancel(struct ldb_context *ldb);
952 return extended error information from the last call
954 const char *ldb_errstring(struct ldb_context *ldb);
957 return a string explaining what a ldb error constant meancs
959 const char *ldb_strerror(int ldb_err);
962 setup the default utf8 functions
963 FIXME: these functions do not yet handle utf8
965 void ldb_set_utf8_default(struct ldb_context *ldb);
970 \param ldb the ldb context
971 \param mem_ctx the memory context to allocate the result string
973 \param s the string that is to be folded
974 \return a copy of the string, converted to upper case
976 \note The default function is not yet UTF8 aware. Provide your own
977 set of functions through ldb_set_utf8_fns()
979 char *ldb_casefold(struct ldb_context *ldb, void *mem_ctx, const char *s);
982 Check the attribute name is valid according to rfc2251
983 \param s tthe string to check
985 \return 1 if the name is ok
987 int ldb_valid_attr_name(const char *s);
990 ldif manipulation functions
993 Write an LDIF message
995 This function writes an LDIF message using a caller supplied write
998 \param ldb the ldb context (from ldb_init())
999 \param fprintf_fn a function pointer for the write function. This must take
1000 a private data pointer, followed by a format string, and then a variable argument
1002 \param private_data pointer that will be provided back to the write
1003 function. This is useful for maintaining state or context.
1004 \param ldif the message to write out
1006 \return the total number of bytes written, or an error code as returned
1007 from the write function.
1009 \sa ldb_ldif_write_file for a more convenient way to write to a
1012 \sa ldb_ldif_read for the reader equivalent to this function.
1014 int ldb_ldif_write(struct ldb_context *ldb,
1015 int (*fprintf_fn)(void *, const char *, ...) PRINTF_ATTRIBUTE(2,3),
1017 const struct ldb_ldif *ldif);
1020 Clean up an LDIF message
1022 This function cleans up a LDIF message read using ldb_ldif_read()
1023 or related functions (such as ldb_ldif_read_string() and
1024 ldb_ldif_read_file().
1026 \param ldb the ldb context (from ldb_init())
1027 \param msg the message to clean up and free
1030 void ldb_ldif_read_free(struct ldb_context *ldb, struct ldb_ldif *msg);
1033 Read an LDIF message
1035 This function creates an LDIF message using a caller supplied read
1038 \param ldb the ldb context (from ldb_init())
1039 \param fgetc_fn a function pointer for the read function. This must
1040 take a private data pointer, and must return a pointer to an
1041 integer corresponding to the next byte read (or EOF if there is no
1042 more data to be read).
1043 \param private_data pointer that will be provided back to the read
1044 function. This is udeful for maintaining state or context.
1046 \return the LDIF message that has been read in
1048 \note You must free the LDIF message when no longer required, using
1049 ldb_ldif_read_free().
1051 \sa ldb_ldif_read_file for a more convenient way to read from a
1054 \sa ldb_ldif_read_string for a more convenient way to read from a
1055 string (char array).
1057 \sa ldb_ldif_write for the writer equivalent to this function.
1059 struct ldb_ldif *ldb_ldif_read(struct ldb_context *ldb,
1060 int (*fgetc_fn)(void *), void *private_data);
1063 Read an LDIF message from a file
1065 This function reads the next LDIF message from the contents of a
1066 file stream. If you want to get all of the LDIF messages, you will
1067 need to repeatedly call this function, until it returns NULL.
1069 \param ldb the ldb context (from ldb_init())
1070 \param f the file stream to read from (typically from fdopen())
1072 \sa ldb_ldif_read_string for an equivalent function that will read
1073 from a string (char array).
1075 \sa ldb_ldif_write_file for the writer equivalent to this function.
1078 struct ldb_ldif *ldb_ldif_read_file(struct ldb_context *ldb, FILE *f);
1081 Read an LDIF message from a string
1083 This function reads the next LDIF message from the contents of a char
1084 array. If you want to get all of the LDIF messages, you will need
1085 to repeatedly call this function, until it returns NULL.
1087 \param ldb the ldb context (from ldb_init())
1088 \param s pointer to the char array to read from
1090 \sa ldb_ldif_read_file for an equivalent function that will read
1093 \sa ldb_ldif_write for a more general (arbitrary read function)
1094 version of this function.
1096 struct ldb_ldif *ldb_ldif_read_string(struct ldb_context *ldb, const char **s);
1099 Write an LDIF message to a file
1101 \param ldb the ldb context (from ldb_init())
1102 \param f the file stream to write to (typically from fdopen())
1103 \param msg the message to write out
1105 \return the total number of bytes written, or a negative error code
1107 \sa ldb_ldif_read_file for the reader equivalent to this function.
1109 int ldb_ldif_write_file(struct ldb_context *ldb, FILE *f, const struct ldb_ldif *msg);
1112 Base64 encode a buffer
1114 \param mem_ctx the memory context that the result is allocated
1116 \param buf pointer to the array that is to be encoded
1117 \param len the number of elements in the array to be encoded
1119 \return pointer to an array containing the encoded data
1121 \note The caller is responsible for freeing the result
1123 char *ldb_base64_encode(void *mem_ctx, const char *buf, int len);
1126 Base64 decode a buffer
1128 This function decodes a base64 encoded string in place.
1130 \param s the string to decode.
1132 \return the length of the returned (decoded) string.
1134 \note the string is null terminated, but the null terminator is not
1135 included in the length.
1137 int ldb_base64_decode(char *s);
1139 int ldb_attrib_add_handlers(struct ldb_context *ldb,
1140 const struct ldb_attrib_handler *handlers,
1141 unsigned num_handlers);
1143 /* The following definitions come from lib/ldb/common/ldb_dn.c */
1145 int ldb_dn_is_special(const struct ldb_dn *dn);
1146 int ldb_dn_check_special(const struct ldb_dn *dn, const char *check);
1147 char *ldb_dn_escape_value(void *mem_ctx, struct ldb_val value);
1148 struct ldb_dn *ldb_dn_new(void *mem_ctx);
1149 struct ldb_dn *ldb_dn_explode(void *mem_ctx, const char *dn);
1150 struct ldb_dn *ldb_dn_explode_or_special(void *mem_ctx, const char *dn);
1151 char *ldb_dn_linearize(void *mem_ctx, const struct ldb_dn *edn);
1152 char *ldb_dn_linearize_casefold(struct ldb_context *ldb, void *mem_ctx, const struct ldb_dn *edn);
1153 int ldb_dn_compare_base(struct ldb_context *ldb, const struct ldb_dn *base, const struct ldb_dn *dn);
1154 int ldb_dn_compare(struct ldb_context *ldb, const struct ldb_dn *edn0, const struct ldb_dn *edn1);
1155 struct ldb_dn *ldb_dn_casefold(struct ldb_context *ldb, void *mem_ctx, const struct ldb_dn *edn);
1156 struct ldb_dn *ldb_dn_explode_casefold(struct ldb_context *ldb, void *mem_ctx, const char *dn);
1157 struct ldb_dn *ldb_dn_copy_partial(void *mem_ctx, const struct ldb_dn *dn, int num_el);
1158 struct ldb_dn *ldb_dn_copy(void *mem_ctx, const struct ldb_dn *dn);
1159 struct ldb_dn *ldb_dn_get_parent(void *mem_ctx, const struct ldb_dn *dn);
1160 struct ldb_dn_component *ldb_dn_build_component(void *mem_ctx, const char *attr,
1162 struct ldb_dn *ldb_dn_build_child(void *mem_ctx, const char *attr,
1164 const struct ldb_dn *base);
1165 struct ldb_dn *ldb_dn_make_child(void *mem_ctx,
1166 const struct ldb_dn_component *component,
1167 const struct ldb_dn *base);
1168 struct ldb_dn *ldb_dn_compose(void *mem_ctx, const struct ldb_dn *dn1, const struct ldb_dn *dn2);
1169 struct ldb_dn *ldb_dn_string_compose(void *mem_ctx, const struct ldb_dn *base, const char *child_fmt, ...) PRINTF_ATTRIBUTE(3,4);
1170 struct ldb_dn_component *ldb_dn_get_rdn(void *mem_ctx, const struct ldb_dn *dn);
1172 /* useful functions for ldb_message structure manipulation */
1173 int ldb_dn_cmp(struct ldb_context *ldb, const char *dn1, const char *dn2);
1176 Compare two attributes
1178 This function compares to attribute names. Note that this is a
1179 case-insensitive comparison.
1181 \param attr1 the first attribute name to compare
1182 \param attr2 the second attribute name to compare
1184 \return 0 if the attribute names are the same, or only differ in
1185 case; non-zero if there are any differences
1187 int ldb_attr_cmp(const char *attr1, const char *attr2);
1188 char *ldb_attr_casefold(void *mem_ctx, const char *s);
1189 int ldb_attr_dn(const char *attr);
1192 Create an empty message
1194 \param mem_ctx the memory context to create in. You can pass NULL
1195 to get the top level context, however the ldb context (from
1196 ldb_init()) may be a better choice
1198 struct ldb_message *ldb_msg_new(void *mem_ctx);
1201 Find an element within an message
1203 struct ldb_message_element *ldb_msg_find_element(const struct ldb_message *msg,
1204 const char *attr_name);
1207 Compare two ldb_val values
1209 \param v1 first ldb_val structure to be tested
1210 \param v2 second ldb_val structure to be tested
1212 \return 1 for a match, 0 if there is any difference
1214 int ldb_val_equal_exact(const struct ldb_val *v1, const struct ldb_val *v2);
1217 find a value within an ldb_message_element
1219 \param el the element to search
1220 \param val the value to search for
1222 \note This search is case sensitive
1224 struct ldb_val *ldb_msg_find_val(const struct ldb_message_element *el,
1225 struct ldb_val *val);
1228 add a new empty element to a ldb_message
1230 int ldb_msg_add_empty(struct ldb_message *msg,
1231 const char *attr_name,
1233 struct ldb_message_element **return_el);
1236 add a element to a ldb_message
1238 int ldb_msg_add(struct ldb_message *msg,
1239 const struct ldb_message_element *el,
1241 int ldb_msg_add_value(struct ldb_message *msg,
1242 const char *attr_name,
1243 const struct ldb_val *val,
1244 struct ldb_message_element **return_el);
1245 int ldb_msg_add_steal_value(struct ldb_message *msg,
1246 const char *attr_name,
1247 struct ldb_val *val);
1248 int ldb_msg_add_steal_string(struct ldb_message *msg,
1249 const char *attr_name, char *str);
1250 int ldb_msg_add_string(struct ldb_message *msg,
1251 const char *attr_name, const char *str);
1252 int ldb_msg_add_fmt(struct ldb_message *msg,
1253 const char *attr_name, const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1256 compare two message elements - return 0 on match
1258 int ldb_msg_element_compare(struct ldb_message_element *el1,
1259 struct ldb_message_element *el2);
1262 Find elements in a message.
1264 This function finds elements and converts to a specific type, with
1265 a give default value if not found. Assumes that elements are
1268 const struct ldb_val *ldb_msg_find_ldb_val(const struct ldb_message *msg, const char *attr_name);
1269 int ldb_msg_find_attr_as_int(const struct ldb_message *msg,
1270 const char *attr_name,
1272 unsigned int ldb_msg_find_attr_as_uint(const struct ldb_message *msg,
1273 const char *attr_name,
1274 unsigned int default_value);
1275 int64_t ldb_msg_find_attr_as_int64(const struct ldb_message *msg,
1276 const char *attr_name,
1277 int64_t default_value);
1278 uint64_t ldb_msg_find_attr_as_uint64(const struct ldb_message *msg,
1279 const char *attr_name,
1280 uint64_t default_value);
1281 double ldb_msg_find_attr_as_double(const struct ldb_message *msg,
1282 const char *attr_name,
1283 double default_value);
1284 int ldb_msg_find_attr_as_bool(const struct ldb_message *msg,
1285 const char *attr_name,
1287 const char *ldb_msg_find_attr_as_string(const struct ldb_message *msg,
1288 const char *attr_name,
1289 const char *default_value);
1291 struct ldb_dn *ldb_msg_find_attr_as_dn(void *mem_ctx,
1292 const struct ldb_message *msg,
1293 const char *attr_name);
1295 void ldb_msg_sort_elements(struct ldb_message *msg);
1297 struct ldb_message *ldb_msg_copy_shallow(void *mem_ctx,
1298 const struct ldb_message *msg);
1299 struct ldb_message *ldb_msg_copy(void *mem_ctx,
1300 const struct ldb_message *msg);
1302 struct ldb_message *ldb_msg_canonicalize(struct ldb_context *ldb,
1303 const struct ldb_message *msg);
1306 struct ldb_message *ldb_msg_diff(struct ldb_context *ldb,
1307 struct ldb_message *msg1,
1308 struct ldb_message *msg2);
1310 int ldb_msg_check_string_attribute(const struct ldb_message *msg,
1315 Integrity check an ldb_message
1317 This function performs basic sanity / integrity checks on an
1320 \param msg the message to check
1322 \return LDB_SUCCESS if the message is OK, or a non-zero error code
1323 (one of LDB_ERR_INVALID_DN_SYNTAX, LDB_ERR_ENTRY_ALREADY_EXISTS or
1324 LDB_ERR_INVALID_ATTRIBUTE_SYNTAX) if there is a problem with a
1327 int ldb_msg_sanity_check(struct ldb_context *ldb,
1328 const struct ldb_message *msg);
1331 Duplicate an ldb_val structure
1333 This function copies an ldb value structure.
1335 \param mem_ctx the memory context that the duplicated value will be
1337 \param v the ldb_val to be duplicated.
1339 \return the duplicated ldb_val structure.
1341 struct ldb_val ldb_val_dup(void *mem_ctx, const struct ldb_val *v);
1344 this allows the user to set a debug function for error reporting
1346 int ldb_set_debug(struct ldb_context *ldb,
1347 void (*debug)(void *context, enum ldb_debug_level level,
1348 const char *fmt, va_list ap) PRINTF_ATTRIBUTE(3,0),
1352 this allows the user to set custom utf8 function for error reporting
1354 void ldb_set_utf8_fns(struct ldb_context *ldb,
1356 char *(*casefold)(void *, void *, const char *));
1359 this sets up debug to print messages on stderr
1361 int ldb_set_debug_stderr(struct ldb_context *ldb);
1363 /* control backend specific opaque values */
1364 int ldb_set_opaque(struct ldb_context *ldb, const char *name, void *value);
1365 void *ldb_get_opaque(struct ldb_context *ldb, const char *name);
1367 const struct ldb_attrib_handler *ldb_attrib_handler(struct ldb_context *ldb,
1368 const char *attrib);
1371 const char **ldb_attr_list_copy(void *mem_ctx, const char * const *attrs);
1372 const char **ldb_attr_list_copy_add(void *mem_ctx, const char * const *attrs, const char *new_attr);
1373 int ldb_attr_in_list(const char * const *attrs, const char *attr);
1376 void ldb_parse_tree_attr_replace(struct ldb_parse_tree *tree,
1378 const char *replace);
1380 int ldb_msg_rename_attr(struct ldb_message *msg, const char *attr, const char *replace);
1381 int ldb_msg_copy_attr(struct ldb_message *msg, const char *attr, const char *replace);
1382 void ldb_msg_remove_attr(struct ldb_message *msg, const char *attr);
1385 Convert a time structure to a string
1387 This function converts a time_t structure to an LDAP formatted time
1390 \param mem_ctx the memory context to allocate the return string in
1391 \param t the time structure to convert
1393 \return the formatted string, or NULL if the time structure could
1396 char *ldb_timestring(void *mem_ctx, time_t t);
1399 Convert a string to a time structure
1401 This function converts an LDAP formatted time string to a time_t
1404 \param s the string to convert
1406 \return the time structure, or 0 if the string cannot be converted
1408 time_t ldb_string_to_time(const char *s);
1410 char *ldb_dn_canonical_string(void *mem_ctx, const struct ldb_dn *dn);
1411 char *ldb_dn_canonical_ex_string(void *mem_ctx, const struct ldb_dn *dn);
1414 void ldb_qsort (void *const pbase, size_t total_elems, size_t size, void *opaque, ldb_qsort_cmp_fn_t cmp);