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"
426 OID for specifying the returned elements of the ntSecurityDescriptor
428 \sa <a href="http://msdn.microsoft.com/library/default.asp?url=/library/en-us/ldap/ldap/ldap_server_sd_flags_oid.asp">Microsoft documentation of this OID</a>
430 #define LDB_CONTROL_SD_FLAGS_OID "1.2.840.113556.1.4.801"
433 OID for specifying an advanced scope for a search
435 \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>
437 #define LDB_CONTROL_SEARCH_OPTIONS_OID "1.2.840.113556.1.4.1340"
442 \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>
444 #define LDB_CONTROL_NOTIFICATION_OID "1.2.840.113556.1.4.528"
449 \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>
451 #define LDB_CONTROL_EXTENDED_DN_OID "1.2.840.113556.1.4.529"
454 OID for LDAP server sort result extension.
456 This control is included in the searchRequest message as part of
457 the controls field of the LDAPMessage, as defined in Section 4.1.12
458 of LDAP v3. The controlType is set to
459 "1.2.840.113556.1.4.473". The criticality MAY be either TRUE or
460 FALSE (where absent is also equivalent to FALSE) at the client's
463 \sa <a href="http://www.ietf.org/rfc/rfc2891.txt">RFC 2891</a>.
465 #define LDB_CONTROL_SERVER_SORT_OID "1.2.840.113556.1.4.473"
468 OID for LDAP server sort result response extension.
470 This control is included in the searchResultDone message as part of
471 the controls field of the LDAPMessage, as defined in Section 4.1.12 of
474 \sa <a href="http://www.ietf.org/rfc/rfc2891.txt">RFC 2891</a>.
476 #define LDB_CONTROL_SORT_RESP_OID "1.2.840.113556.1.4.474"
479 OID for LDAP Attribute Scoped Query extension.
481 This control is included in SearchRequest or SearchResponse
482 messages as part of the controls field of the LDAPMessage.
484 #define LDB_CONTROL_ASQ_OID "1.2.840.113556.1.4.1504"
487 OID for LDAP Directory Sync extension.
489 This control is included in SearchRequest or SearchResponse
490 messages as part of the controls field of the LDAPMessage.
492 #define LDB_CONTROL_DIRSYNC_OID "1.2.840.113556.1.4.841"
496 OID for LDAP Virtual List View Request extension.
498 This control is included in SearchRequest messages
499 as part of the controls field of the LDAPMessage.
501 #define LDB_CONTROL_VLV_REQ_OID "2.16.840.1.113730.3.4.9"
504 OID for LDAP Virtual List View Response extension.
506 This control is included in SearchResponse messages
507 as part of the controls field of the LDAPMessage.
509 #define LDB_CONTROL_VLV_RESP_OID "2.16.840.1.113730.3.4.10"
512 OID for LDAP Extended Operation START_TLS.
514 This Extended operation is used to start a new TLS
515 channel on top of a clear text channel.
517 #define LDB_EXTENDED_START_TLS_OID "1.3.6.1.4.1.1466.20037"
520 OID for LDAP Extended Operation START_TLS.
522 This Extended operation is used to start a new TLS
523 channel on top of a clear text channel.
525 #define LDB_EXTENDED_DYNAMIC_OID "1.3.6.1.4.1.1466.101.119.1"
528 OID for LDAP Extended Operation START_TLS.
530 This Extended operation is used to start a new TLS
531 channel on top of a clear text channel.
533 #define LDB_EXTENDED_FAST_BIND_OID "1.2.840.113556.1.4.1781"
535 struct ldb_sd_flags_control {
537 * request the owner 0x00000001
538 * request the group 0x00000002
539 * request the DACL 0x00000004
540 * request the SACL 0x00000008
542 unsigned secinfo_flags;
545 struct ldb_search_options_control {
547 * DOMAIN_SCOPE 0x00000001
548 * this limits the search to one partition,
549 * and no referrals will be returned.
550 * (Note this doesn't limit the entries by there
551 * objectSid belonging to a domain! Builtin and Foreign Sids
552 * are still returned)
554 * PHANTOM_ROOT 0x00000002
555 * this search on the whole tree on a domain controller
556 * over multiple partitions without referrals.
557 * (This is the default behavior on the Global Catalog Port)
559 unsigned search_options;
562 struct ldb_paged_control {
568 struct ldb_extended_dn_control {
572 struct ldb_server_sort_control {
578 struct ldb_sort_resp_control {
583 struct ldb_asq_control {
585 char *source_attribute;
590 struct ldb_dirsync_control {
597 struct ldb_vlv_req_control {
615 struct ldb_vlv_resp_control {
629 enum ldb_request_type {
636 LDB_REQ_REGISTER_CONTROL,
637 LDB_REQ_REGISTER_PARTITION,
641 enum ldb_reply_type {
661 struct ldb_message **msgs;
663 struct ldb_control **controls;
666 struct ldb_extended {
673 enum ldb_reply_type type;
674 struct ldb_message *message;
675 struct ldb_extended *response;
677 struct ldb_control **controls;
682 enum ldb_state state;
684 struct ldb_module *module;
688 const struct ldb_dn *base;
689 enum ldb_scope scope;
690 const struct ldb_parse_tree *tree;
691 const char * const *attrs;
692 struct ldb_result *res;
696 const struct ldb_message *message;
700 const struct ldb_message *message;
704 const struct ldb_dn *dn;
708 const struct ldb_dn *olddn;
709 const struct ldb_dn *newdn;
712 struct ldb_register_control {
716 struct ldb_register_partition {
717 const struct ldb_dn *dn;
720 struct ldb_sequence_number {
726 enum ldb_request_type operation;
729 struct ldb_search search;
731 struct ldb_modify mod;
732 struct ldb_delete del;
733 struct ldb_rename rename;
734 struct ldb_register_control reg_control;
735 struct ldb_register_partition reg_partition;
736 struct ldb_sequence_number seq_num;
739 struct ldb_control **controls;
742 int (*callback)(struct ldb_context *, void *, struct ldb_reply *);
746 struct ldb_handle *handle;
749 int ldb_request(struct ldb_context *ldb, struct ldb_request *request);
751 int ldb_wait(struct ldb_handle *handle, enum ldb_wait_type type);
753 int ldb_set_timeout(struct ldb_context *ldb, struct ldb_request *req, int timeout);
754 int ldb_set_timeout_from_prev_req(struct ldb_context *ldb, struct ldb_request *oldreq, struct ldb_request *newreq);
757 Initialise ldbs' global information
759 This is required before any other LDB call
761 \return 0 if initialisation succeeded, -1 otherwise
763 int ldb_global_init(void);
766 Initialise an ldb context
768 This is required before any other LDB call.
770 \param mem_ctx pointer to a talloc memory context. Pass NULL if there is
771 no suitable context available.
773 \return pointer to ldb_context that should be free'd (using talloc_free())
774 at the end of the program.
776 struct ldb_context *ldb_init(void *mem_ctx);
779 Connect to a database.
781 This is typically called soon after ldb_init(), and is required prior to
782 any search or database modification operations.
784 The URL can be one of the following forms:
790 \param ldb the context associated with the database (from ldb_init())
791 \param url the URL of the database to connect to, as noted above
792 \param flags a combination of LDB_FLG_* to modify the connection behaviour
793 \param options backend specific options - passed uninterpreted to the backend
795 \return result code (LDB_SUCCESS on success, or a failure code)
797 \note It is an error to connect to a database that does not exist in readonly mode
798 (that is, with LDB_FLG_RDONLY). However in read-write mode, the database will be
799 created if it does not exist.
801 int ldb_connect(struct ldb_context *ldb, const char *url, unsigned int flags, const char *options[]);
806 This function searches the database, and returns
807 records that match an LDAP-like search expression
809 \param ldb the context associated with the database (from ldb_init())
810 \param base the Base Distinguished Name for the query (pass NULL for root DN)
811 \param scope the search scope for the query
812 \param expression the search expression to use for this query
813 \param attrs the search attributes for the query (pass NULL if none required)
814 \param res the return result
816 \return result code (LDB_SUCCESS on success, or a failure code)
818 \note use talloc_free() to free the ldb_result returned
820 int ldb_search(struct ldb_context *ldb,
821 const struct ldb_dn *base,
822 enum ldb_scope scope,
823 const char *expression,
824 const char * const *attrs, struct ldb_result **res);
827 like ldb_search() but takes a parse tree
829 int ldb_search_bytree(struct ldb_context *ldb,
830 const struct ldb_dn *base,
831 enum ldb_scope scope,
832 struct ldb_parse_tree *tree,
833 const char * const *attrs, struct ldb_result **res);
836 Add a record to the database.
838 This function adds a record to the database. This function will fail
839 if a record with the specified class and key already exists in the
842 \param ldb the context associated with the database (from
844 \param message the message containing the record to add.
846 \return result code (LDB_SUCCESS if the record was added, otherwise
849 int ldb_add(struct ldb_context *ldb,
850 const struct ldb_message *message);
853 Modify the specified attributes of a record
855 This function modifies a record that is in the database.
857 \param ldb the context associated with the database (from
859 \param message the message containing the changes required.
861 \return result code (LDB_SUCCESS if the record was modified as
862 requested, otherwise a failure code)
864 int ldb_modify(struct ldb_context *ldb,
865 const struct ldb_message *message);
868 Rename a record in the database
870 This function renames a record in the database.
872 \param ldb the context associated with the database (from
874 \param olddn the DN for the record to be renamed.
875 \param newdn the new DN
877 \return result code (LDB_SUCCESS if the record was renamed as
878 requested, otherwise a failure code)
880 int ldb_rename(struct ldb_context *ldb, const struct ldb_dn *olddn, const struct ldb_dn *newdn);
883 Delete a record from the database
885 This function deletes a record from the database.
887 \param ldb the context associated with the database (from
889 \param dn the DN for the record to be deleted.
891 \return result code (LDB_SUCCESS if the record was deleted,
892 otherwise a failure code)
894 int ldb_delete(struct ldb_context *ldb, const struct ldb_dn *dn);
897 Obtain current database sequence number
899 int ldb_sequence_number(struct ldb_context *ldb, uint64_t *seq_num);
904 int ldb_transaction_start(struct ldb_context *ldb);
909 int ldb_transaction_commit(struct ldb_context *ldb);
914 int ldb_transaction_cancel(struct ldb_context *ldb);
918 return extended error information from the last call
920 const char *ldb_errstring(struct ldb_context *ldb);
923 return a string explaining what a ldb error constant meancs
925 const char *ldb_strerror(int ldb_err);
928 setup the default utf8 functions
929 FIXME: these functions do not yet handle utf8
931 void ldb_set_utf8_default(struct ldb_context *ldb);
936 \param ldb the ldb context
937 \param mem_ctx the memory context to allocate the result string
939 \param s the string that is to be folded
940 \return a copy of the string, converted to upper case
942 \note The default function is not yet UTF8 aware. Provide your own
943 set of functions through ldb_set_utf8_fns()
945 char *ldb_casefold(struct ldb_context *ldb, void *mem_ctx, const char *s);
948 Check the attribute name is valid according to rfc2251
949 \param s tthe string to check
951 \return 1 if the name is ok
953 int ldb_valid_attr_name(const char *s);
956 ldif manipulation functions
959 Write an LDIF message
961 This function writes an LDIF message using a caller supplied write
964 \param ldb the ldb context (from ldb_init())
965 \param fprintf_fn a function pointer for the write function. This must take
966 a private data pointer, followed by a format string, and then a variable argument
968 \param private_data pointer that will be provided back to the write
969 function. This is useful for maintaining state or context.
970 \param ldif the message to write out
972 \return the total number of bytes written, or an error code as returned
973 from the write function.
975 \sa ldb_ldif_write_file for a more convenient way to write to a
978 \sa ldb_ldif_read for the reader equivalent to this function.
980 int ldb_ldif_write(struct ldb_context *ldb,
981 int (*fprintf_fn)(void *, const char *, ...),
983 const struct ldb_ldif *ldif);
986 Clean up an LDIF message
988 This function cleans up a LDIF message read using ldb_ldif_read()
989 or related functions (such as ldb_ldif_read_string() and
990 ldb_ldif_read_file().
992 \param ldb the ldb context (from ldb_init())
993 \param msg the message to clean up and free
996 void ldb_ldif_read_free(struct ldb_context *ldb, struct ldb_ldif *msg);
1001 This function creates an LDIF message using a caller supplied read
1004 \param ldb the ldb context (from ldb_init())
1005 \param fgetc_fn a function pointer for the read function. This must
1006 take a private data pointer, and must return a pointer to an
1007 integer corresponding to the next byte read (or EOF if there is no
1008 more data to be read).
1009 \param private_data pointer that will be provided back to the read
1010 function. This is udeful for maintaining state or context.
1012 \return the LDIF message that has been read in
1014 \note You must free the LDIF message when no longer required, using
1015 ldb_ldif_read_free().
1017 \sa ldb_ldif_read_file for a more convenient way to read from a
1020 \sa ldb_ldif_read_string for a more convenient way to read from a
1021 string (char array).
1023 \sa ldb_ldif_write for the writer equivalent to this function.
1025 struct ldb_ldif *ldb_ldif_read(struct ldb_context *ldb,
1026 int (*fgetc_fn)(void *), void *private_data);
1029 Read an LDIF message from a file
1031 This function reads the next LDIF message from the contents of a
1032 file stream. If you want to get all of the LDIF messages, you will
1033 need to repeatedly call this function, until it returns NULL.
1035 \param ldb the ldb context (from ldb_init())
1036 \param f the file stream to read from (typically from fdopen())
1038 \sa ldb_ldif_read_string for an equivalent function that will read
1039 from a string (char array).
1041 \sa ldb_ldif_write_file for the writer equivalent to this function.
1044 struct ldb_ldif *ldb_ldif_read_file(struct ldb_context *ldb, FILE *f);
1047 Read an LDIF message from a string
1049 This function reads the next LDIF message from the contents of a char
1050 array. If you want to get all of the LDIF messages, you will need
1051 to repeatedly call this function, until it returns NULL.
1053 \param ldb the ldb context (from ldb_init())
1054 \param s pointer to the char array to read from
1056 \sa ldb_ldif_read_file for an equivalent function that will read
1059 \sa ldb_ldif_write for a more general (arbitrary read function)
1060 version of this function.
1062 struct ldb_ldif *ldb_ldif_read_string(struct ldb_context *ldb, const char **s);
1065 Write an LDIF message to a file
1067 \param ldb the ldb context (from ldb_init())
1068 \param f the file stream to write to (typically from fdopen())
1069 \param msg the message to write out
1071 \return the total number of bytes written, or a negative error code
1073 \sa ldb_ldif_read_file for the reader equivalent to this function.
1075 int ldb_ldif_write_file(struct ldb_context *ldb, FILE *f, const struct ldb_ldif *msg);
1078 Base64 encode a buffer
1080 \param mem_ctx the memory context that the result is allocated
1082 \param buf pointer to the array that is to be encoded
1083 \param len the number of elements in the array to be encoded
1085 \return pointer to an array containing the encoded data
1087 \note The caller is responsible for freeing the result
1089 char *ldb_base64_encode(void *mem_ctx, const char *buf, int len);
1092 Base64 decode a buffer
1094 This function decodes a base64 encoded string in place.
1096 \param s the string to decode.
1098 \return the length of the returned (decoded) string.
1100 \note the string is null terminated, but the null terminator is not
1101 included in the length.
1103 int ldb_base64_decode(char *s);
1105 int ldb_attrib_add_handlers(struct ldb_context *ldb,
1106 const struct ldb_attrib_handler *handlers,
1107 unsigned num_handlers);
1109 /* The following definitions come from lib/ldb/common/ldb_dn.c */
1111 int ldb_dn_is_special(const struct ldb_dn *dn);
1112 int ldb_dn_check_special(const struct ldb_dn *dn, const char *check);
1113 char *ldb_dn_escape_value(void *mem_ctx, struct ldb_val value);
1114 struct ldb_dn *ldb_dn_new(void *mem_ctx);
1115 struct ldb_dn *ldb_dn_explode(void *mem_ctx, const char *dn);
1116 struct ldb_dn *ldb_dn_explode_or_special(void *mem_ctx, const char *dn);
1117 char *ldb_dn_linearize(void *mem_ctx, const struct ldb_dn *edn);
1118 char *ldb_dn_linearize_casefold(struct ldb_context *ldb, const struct ldb_dn *edn);
1119 int ldb_dn_compare_base(struct ldb_context *ldb, const struct ldb_dn *base, const struct ldb_dn *dn);
1120 int ldb_dn_compare(struct ldb_context *ldb, const struct ldb_dn *edn0, const struct ldb_dn *edn1);
1121 struct ldb_dn *ldb_dn_casefold(struct ldb_context *ldb, const struct ldb_dn *edn);
1122 struct ldb_dn *ldb_dn_explode_casefold(struct ldb_context *ldb, const char *dn);
1123 struct ldb_dn *ldb_dn_copy_partial(void *mem_ctx, const struct ldb_dn *dn, int num_el);
1124 struct ldb_dn *ldb_dn_copy(void *mem_ctx, const struct ldb_dn *dn);
1125 struct ldb_dn *ldb_dn_get_parent(void *mem_ctx, const struct ldb_dn *dn);
1126 struct ldb_dn_component *ldb_dn_build_component(void *mem_ctx, const char *attr,
1128 struct ldb_dn *ldb_dn_build_child(void *mem_ctx, const char *attr,
1130 const struct ldb_dn *base);
1131 struct ldb_dn *ldb_dn_make_child(void *mem_ctx,
1132 const struct ldb_dn_component *component,
1133 const struct ldb_dn *base);
1134 struct ldb_dn *ldb_dn_compose(void *mem_ctx, const struct ldb_dn *dn1, const struct ldb_dn *dn2);
1135 struct ldb_dn *ldb_dn_string_compose(void *mem_ctx, const struct ldb_dn *base, const char *child_fmt, ...) PRINTF_ATTRIBUTE(3,4);
1136 struct ldb_dn_component *ldb_dn_get_rdn(void *mem_ctx, const struct ldb_dn *dn);
1138 /* useful functions for ldb_message structure manipulation */
1139 int ldb_dn_cmp(struct ldb_context *ldb, const char *dn1, const char *dn2);
1142 Compare two attributes
1144 This function compares to attribute names. Note that this is a
1145 case-insensitive comparison.
1147 \param attr1 the first attribute name to compare
1148 \param attr2 the second attribute name to compare
1150 \return 0 if the attribute names are the same, or only differ in
1151 case; non-zero if there are any differences
1153 int ldb_attr_cmp(const char *attr1, const char *attr2);
1154 char *ldb_attr_casefold(void *mem_ctx, const char *s);
1155 int ldb_attr_dn(const char *attr);
1158 Create an empty message
1160 \param mem_ctx the memory context to create in. You can pass NULL
1161 to get the top level context, however the ldb context (from
1162 ldb_init()) may be a better choice
1164 struct ldb_message *ldb_msg_new(void *mem_ctx);
1167 Find an element within an message
1169 struct ldb_message_element *ldb_msg_find_element(const struct ldb_message *msg,
1170 const char *attr_name);
1173 Compare two ldb_val values
1175 \param v1 first ldb_val structure to be tested
1176 \param v2 second ldb_val structure to be tested
1178 \return 1 for a match, 0 if there is any difference
1180 int ldb_val_equal_exact(const struct ldb_val *v1, const struct ldb_val *v2);
1183 find a value within an ldb_message_element
1185 \param el the element to search
1186 \param val the value to search for
1188 \note This search is case sensitive
1190 struct ldb_val *ldb_msg_find_val(const struct ldb_message_element *el,
1191 struct ldb_val *val);
1194 add a new empty element to a ldb_message
1196 int ldb_msg_add_empty(struct ldb_message *msg, const char *attr_name, int flags);
1199 add a element to a ldb_message
1201 int ldb_msg_add(struct ldb_message *msg,
1202 const struct ldb_message_element *el,
1204 int ldb_msg_add_value(struct ldb_message *msg,
1205 const char *attr_name,
1206 const struct ldb_val *val);
1207 int ldb_msg_add_steal_value(struct ldb_message *msg,
1208 const char *attr_name,
1209 struct ldb_val *val);
1210 int ldb_msg_add_steal_string(struct ldb_message *msg,
1211 const char *attr_name, char *str);
1212 int ldb_msg_add_string(struct ldb_message *msg,
1213 const char *attr_name, const char *str);
1214 int ldb_msg_add_fmt(struct ldb_message *msg,
1215 const char *attr_name, const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1218 compare two message elements - return 0 on match
1220 int ldb_msg_element_compare(struct ldb_message_element *el1,
1221 struct ldb_message_element *el2);
1224 Find elements in a message.
1226 This function finds elements and converts to a specific type, with
1227 a give default value if not found. Assumes that elements are
1230 const struct ldb_val *ldb_msg_find_ldb_val(const struct ldb_message *msg, const char *attr_name);
1231 int ldb_msg_find_int(const struct ldb_message *msg,
1232 const char *attr_name,
1234 unsigned int ldb_msg_find_uint(const struct ldb_message *msg,
1235 const char *attr_name,
1236 unsigned int default_value);
1237 int64_t ldb_msg_find_int64(const struct ldb_message *msg,
1238 const char *attr_name,
1239 int64_t default_value);
1240 uint64_t ldb_msg_find_uint64(const struct ldb_message *msg,
1241 const char *attr_name,
1242 uint64_t default_value);
1243 double ldb_msg_find_double(const struct ldb_message *msg,
1244 const char *attr_name,
1245 double default_value);
1246 const char *ldb_msg_find_string(const struct ldb_message *msg,
1247 const char *attr_name,
1248 const char *default_value);
1250 void ldb_msg_sort_elements(struct ldb_message *msg);
1252 struct ldb_message *ldb_msg_copy_shallow(void *mem_ctx,
1253 const struct ldb_message *msg);
1254 struct ldb_message *ldb_msg_copy(void *mem_ctx,
1255 const struct ldb_message *msg);
1257 struct ldb_message *ldb_msg_canonicalize(struct ldb_context *ldb,
1258 const struct ldb_message *msg);
1261 struct ldb_message *ldb_msg_diff(struct ldb_context *ldb,
1262 struct ldb_message *msg1,
1263 struct ldb_message *msg2);
1265 int ldb_msg_check_string_attribute(const struct ldb_message *msg,
1270 Integrity check an ldb_message
1272 This function performs basic sanity / integrity checks on an
1275 \param msg the message to check
1277 \return LDB_SUCCESS if the message is OK, or a non-zero error code
1278 (one of LDB_ERR_INVALID_DN_SYNTAX, LDB_ERR_ENTRY_ALREADY_EXISTS or
1279 LDB_ERR_INVALID_ATTRIBUTE_SYNTAX) if there is a problem with a
1282 int ldb_msg_sanity_check(struct ldb_context *ldb,
1283 const struct ldb_message *msg);
1286 Duplicate an ldb_val structure
1288 This function copies an ldb value structure.
1290 \param mem_ctx the memory context that the duplicated value will be
1292 \param v the ldb_val to be duplicated.
1294 \return the duplicated ldb_val structure.
1296 struct ldb_val ldb_val_dup(void *mem_ctx, const struct ldb_val *v);
1299 this allows the user to set a debug function for error reporting
1301 int ldb_set_debug(struct ldb_context *ldb,
1302 void (*debug)(void *context, enum ldb_debug_level level,
1303 const char *fmt, va_list ap),
1307 this allows the user to set custom utf8 function for error reporting
1309 void ldb_set_utf8_fns(struct ldb_context *ldb,
1311 char *(*casefold)(void *, void *, const char *));
1314 this sets up debug to print messages on stderr
1316 int ldb_set_debug_stderr(struct ldb_context *ldb);
1318 /* control backend specific opaque values */
1319 int ldb_set_opaque(struct ldb_context *ldb, const char *name, void *value);
1320 void *ldb_get_opaque(struct ldb_context *ldb, const char *name);
1322 const struct ldb_attrib_handler *ldb_attrib_handler(struct ldb_context *ldb,
1323 const char *attrib);
1326 const char **ldb_attr_list_copy(void *mem_ctx, const char * const *attrs);
1327 const char **ldb_attr_list_copy_add(void *mem_ctx, const char * const *attrs, const char *new_attr);
1328 int ldb_attr_in_list(const char * const *attrs, const char *attr);
1331 void ldb_parse_tree_attr_replace(struct ldb_parse_tree *tree,
1333 const char *replace);
1335 int ldb_msg_rename_attr(struct ldb_message *msg, const char *attr, const char *replace);
1336 int ldb_msg_copy_attr(struct ldb_message *msg, const char *attr, const char *replace);
1337 void ldb_msg_remove_attr(struct ldb_message *msg, const char *attr);
1340 Convert a time structure to a string
1342 This function converts a time_t structure to an LDAP formatted time
1345 \param mem_ctx the memory context to allocate the return string in
1346 \param t the time structure to convert
1348 \return the formatted string, or NULL if the time structure could
1351 char *ldb_timestring(void *mem_ctx, time_t t);
1354 Convert a string to a time structure
1356 This function converts an LDAP formatted time string to a time_t
1359 \param s the string to convert
1361 \return the time structure, or 0 if the string cannot be converted
1363 time_t ldb_string_to_time(const char *s);
1365 char *ldb_dn_canonical_string(void *mem_ctx, const struct ldb_dn *dn);
1366 char *ldb_dn_canonical_ex_string(void *mem_ctx, const struct ldb_dn *dn);
1369 void ldb_qsort (void *const pbase, size_t total_elems, size_t size, void *opaque, ldb_qsort_cmp_fn_t cmp);