4 Copyright (C) Simo Sorce 2008
6 ** NOTE! The following LGPL license applies to the ldb
7 ** library. This does NOT imply that all of Samba is released
10 This library is free software; you can redistribute it and/or
11 modify it under the terms of the GNU Lesser General Public
12 License as published by the Free Software Foundation; either
13 version 3 of the License, or (at your option) any later version.
15 This library is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 Lesser General Public License for more details.
20 You should have received a copy of the GNU Lesser General Public
21 License along with this library; if not, see <http://www.gnu.org/licenses/>.
27 * Component: ldb module header
29 * Description: defines ldb modules structures and helpers
33 #ifndef _LDB_MODULE_H_
34 #define _LDB_MODULE_H_
42 these function pointers define the operations that a ldb module can intercept
44 struct ldb_module_ops {
46 int (*init_context) (struct ldb_module *);
47 int (*search)(struct ldb_module *, struct ldb_request *); /* search */
48 int (*add)(struct ldb_module *, struct ldb_request *); /* add */
49 int (*modify)(struct ldb_module *, struct ldb_request *); /* modify */
50 int (*del)(struct ldb_module *, struct ldb_request *); /* delete */
51 int (*rename)(struct ldb_module *, struct ldb_request *); /* rename */
52 int (*request)(struct ldb_module *, struct ldb_request *); /* match any other operation */
53 int (*extended)(struct ldb_module *, struct ldb_request *); /* extended operations */
54 int (*start_transaction)(struct ldb_module *);
55 int (*prepare_commit)(struct ldb_module *);
56 int (*end_transaction)(struct ldb_module *);
57 int (*del_transaction)(struct ldb_module *);
58 int (*sequence_number)(struct ldb_module *, struct ldb_request *);
63 /* The following definitions come from lib/ldb/common/ldb_debug.c */
64 void ldb_debug(struct ldb_context *ldb, enum ldb_debug_level level, const char *fmt, ...) PRINTF_ATTRIBUTE(3, 4);
65 void ldb_debug_set(struct ldb_context *ldb, enum ldb_debug_level level,
66 const char *fmt, ...) PRINTF_ATTRIBUTE(3, 4);
67 void ldb_debug_add(struct ldb_context *ldb, const char *fmt, ...) PRINTF_ATTRIBUTE(2, 3);
68 void ldb_debug_end(struct ldb_context *ldb, enum ldb_debug_level level);
70 #define ldb_oom(ldb) ldb_debug_set(ldb, LDB_DEBUG_FATAL, "ldb out of memory at %s:%d\n", __FILE__, __LINE__)
71 #define ldb_module_oom(module) ldb_oom(ldb_module_get_ctx(module))
73 /* The following definitions come from lib/ldb/common/ldb.c */
75 void ldb_request_set_state(struct ldb_request *req, int state);
76 int ldb_request_get_status(struct ldb_request *req);
78 unsigned int ldb_get_create_perms(struct ldb_context *ldb);
80 const struct ldb_schema_syntax *ldb_standard_syntax_by_name(struct ldb_context *ldb,
83 /* The following definitions come from lib/ldb/common/ldb_attributes.c */
85 int ldb_schema_attribute_add_with_syntax(struct ldb_context *ldb,
88 const struct ldb_schema_syntax *syntax);
89 int ldb_schema_attribute_add(struct ldb_context *ldb,
93 void ldb_schema_attribute_remove(struct ldb_context *ldb, const char *name);
95 /* we allow external code to override the name -> schema_attribute function */
96 typedef const struct ldb_schema_attribute *(*ldb_attribute_handler_override_fn_t)(struct ldb_context *, void *, const char *);
98 void ldb_schema_attribute_set_override_handler(struct ldb_context *ldb,
99 ldb_attribute_handler_override_fn_t override,
102 /* A useful function to build comparison functions with */
103 int ldb_any_comparison(struct ldb_context *ldb, void *mem_ctx,
104 ldb_attr_handler_t canonicalise_fn,
105 const struct ldb_val *v1,
106 const struct ldb_val *v2);
108 /* The following definitions come from lib/ldb/common/ldb_controls.c */
109 struct ldb_control *get_control_from_list(struct ldb_control **controls, const char *oid);
110 int save_controls(struct ldb_control *exclude, struct ldb_request *req, struct ldb_control ***saver);
111 /* Returns a list of controls, except the one specified. Included
112 * controls become a child of returned list if they were children of
114 struct ldb_control **controls_except_specified(struct ldb_control **controls_in,
116 struct ldb_control *exclude);
117 int check_critical_controls(struct ldb_control **controls);
119 /* The following definitions come from lib/ldb/common/ldb_ldif.c */
120 int ldb_should_b64_encode(struct ldb_context *ldb, const struct ldb_val *val);
122 /* The following definitions come from lib/ldb/common/ldb_match.c */
123 int ldb_match_msg(struct ldb_context *ldb,
124 const struct ldb_message *msg,
125 const struct ldb_parse_tree *tree,
127 enum ldb_scope scope);
129 /* The following definitions come from lib/ldb/common/ldb_modules.c */
131 struct ldb_module *ldb_module_new(TALLOC_CTX *memctx,
132 struct ldb_context *ldb,
133 const char *module_name,
134 const struct ldb_module_ops *ops);
136 const char * ldb_module_get_name(struct ldb_module *module);
137 struct ldb_context *ldb_module_get_ctx(struct ldb_module *module);
138 void *ldb_module_get_private(struct ldb_module *module);
139 void ldb_module_set_private(struct ldb_module *module, void *private_data);
141 int ldb_next_request(struct ldb_module *module, struct ldb_request *request);
142 int ldb_next_start_trans(struct ldb_module *module);
143 int ldb_next_end_trans(struct ldb_module *module);
144 int ldb_next_del_trans(struct ldb_module *module);
145 int ldb_next_prepare_commit(struct ldb_module *module);
146 int ldb_next_init(struct ldb_module *module);
148 void ldb_set_errstring(struct ldb_context *ldb, const char *err_string);
149 void ldb_asprintf_errstring(struct ldb_context *ldb, const char *format, ...) PRINTF_ATTRIBUTE(2,3);
150 void ldb_reset_err_string(struct ldb_context *ldb);
152 const char *ldb_default_modules_dir(void);
154 int ldb_register_module(const struct ldb_module_ops *);
156 typedef int (*ldb_connect_fn)(struct ldb_context *ldb, const char *url,
157 unsigned int flags, const char *options[],
158 struct ldb_module **module);
160 struct ldb_backend_ops {
162 ldb_connect_fn connect_fn;
165 const char *ldb_default_modules_dir(void);
167 int ldb_register_backend(const char *url_prefix, ldb_connect_fn);
169 struct ldb_handle *ldb_handle_new(TALLOC_CTX *mem_ctx, struct ldb_context *ldb);
171 int ldb_module_send_entry(struct ldb_request *req,
172 struct ldb_message *msg,
173 struct ldb_control **ctrls);
175 int ldb_module_send_referral(struct ldb_request *req,
178 int ldb_module_done(struct ldb_request *req,
179 struct ldb_control **ctrls,
180 struct ldb_extended *response,
183 int ldb_mod_register_control(struct ldb_module *module, const char *oid);
185 void ldb_set_default_dns(struct ldb_context *ldb);
187 Add a ldb_control to a ldb_reply
189 \param ares the reply struct where to add the control
190 \param oid the object identifier of the control as string
191 \param critical whether the control should be critical or not
192 \param data a talloc pointer to the control specific data
194 \return result code (LDB_SUCCESS on success, or a failure code)
196 int ldb_reply_add_control(struct ldb_reply *ares, const char *oid, bool critical, void *data);