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/*
ldb database library
Copyright (C) Andrew Tridgell 2004
Copyright (C) Stefan Metzmacher 2004
Copyright (C) Simo Sorce 2004-2005
** NOTE! The following LGPL license applies to the ldb
** library. This does NOT imply that all of Samba is released
** under the LGPL
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
/*
* Name: ldb
*
* Component: ldb private header
*
* Description: defines internal ldb structures used by the subsystem and modules
*
* Author: Andrew Tridgell
* Author: Stefan Metzmacher
*/
#ifndef _LDB_PRIVATE_H_
#define _LDB_PRIVATE_H_ 1
struct ldb_context;
struct ldb_module_ops;
/* basic module structure */
struct ldb_module {
struct ldb_module *prev, *next;
struct ldb_context *ldb;
void *private_data;
const struct ldb_module_ops *ops;
};
/*
these function pointers define the operations that a ldb module must perform
they correspond exactly to the ldb_*() interface
*/
struct ldb_module_ops {
const char *name;
int (*init_context) (struct ldb_module *);
int (*search)(struct ldb_module *, struct ldb_request *); /* search */
int (*add)(struct ldb_module *, struct ldb_request *); /* add */
int (*modify)(struct ldb_module *, struct ldb_request *); /* modify */
int (*del)(struct ldb_module *, struct ldb_request *); /* delete */
int (*rename)(struct ldb_module *, struct ldb_request *); /* rename */
int (*request)(struct ldb_module *, struct ldb_request *); /* match any other operation */
int (*extended)(struct ldb_module *, struct ldb_request *); /* extended operations */
int (*start_transaction)(struct ldb_module *);
int (*end_transaction)(struct ldb_module *);
int (*del_transaction)(struct ldb_module *);
int (*wait)(struct ldb_handle *, enum ldb_wait_type);
int (*sequence_number)(struct ldb_module *, struct ldb_request *);
};
typedef int (*ldb_connect_fn) (struct ldb_context *ldb, const char *url, unsigned int flags, const char *options[],
struct ldb_module **module);
/*
schema related information needed for matching rules
*/
struct ldb_schema {
/* attribute handling table */
unsigned num_attrib_handlers;
struct ldb_attrib_handler *attrib_handlers;
/* objectclass information */
unsigned num_classes;
struct ldb_subclass {
char *name;
char **subclasses;
} *classes;
};
/*
every ldb connection is started by establishing a ldb_context
*/
struct ldb_context {
/* the operations provided by the backend */
struct ldb_module *modules;
/* debugging operations */
struct ldb_debug_ops debug_ops;
/* custom utf8 functions */
struct ldb_utf8_fns utf8_fns;
/* backend specific opaque parameters */
struct ldb_opaque {
struct ldb_opaque *next;
const char *name;
void *value;
} *opaque;
struct ldb_schema schema;
char *err_string;
int transaction_active;
int default_timeout;
unsigned int flags;
unsigned int create_perms;
};
#ifndef ARRAY_SIZE
#define ARRAY_SIZE(a) (sizeof(a)/sizeof(a[0]))
#endif
/*
simplify out of memory handling
*/
#define ldb_oom(ldb) ldb_debug_set(ldb, LDB_DEBUG_FATAL, "ldb out of memory at %s:%d\n", __FILE__, __LINE__)
/* The following definitions come from lib/ldb/common/ldb.c */
int ldb_connect_backend(struct ldb_context *ldb, const char *url, const char *options[],
struct ldb_module **backend_module);
/* The following definitions come from lib/ldb/common/ldb_modules.c */
const char **ldb_modules_list_from_string(struct ldb_context *ldb, TALLOC_CTX *mem_ctx, const char *string);
int ldb_load_modules_list(struct ldb_context *ldb, const char **module_list, struct ldb_module *backend, struct ldb_module **out);
int ldb_load_modules(struct ldb_context *ldb, const char *options[]);
int ldb_init_module_chain(struct ldb_context *ldb, struct ldb_module *module);
int ldb_next_request(struct ldb_module *module, struct ldb_request *request);
int ldb_next_start_trans(struct ldb_module *module);
int ldb_next_end_trans(struct ldb_module *module);
int ldb_next_del_trans(struct ldb_module *module);
int ldb_next_init(struct ldb_module *module);
void ldb_set_errstring(struct ldb_context *ldb, const char *err_string);
void ldb_asprintf_errstring(struct ldb_context *ldb, const char *format, ...) PRINTF_ATTRIBUTE(2,3);
void ldb_reset_err_string(struct ldb_context *ldb);
int ldb_register_module(const struct ldb_module_ops *);
int ldb_register_backend(const char *url_prefix, ldb_connect_fn);
int ldb_try_load_dso(struct ldb_context *ldb, const char *name);
/* The following definitions come from lib/ldb/common/ldb_debug.c */
void ldb_debug(struct ldb_context *ldb, enum ldb_debug_level level, const char *fmt, ...) PRINTF_ATTRIBUTE(3, 4);
void ldb_debug_set(struct ldb_context *ldb, enum ldb_debug_level level,
const char *fmt, ...) PRINTF_ATTRIBUTE(3, 4);
/* The following definitions come from lib/ldb/common/ldb_ldif.c */
int ldb_should_b64_encode(const struct ldb_val *val);
int ldb_objectclass_init(void);
int ldb_operational_init(void);
int ldb_paged_results_init(void);
int ldb_rdn_name_init(void);
int ldb_schema_init(void);
int ldb_asq_init(void);
int ldb_sort_init(void);
int ldb_ldap_init(void);
int ldb_ildap_init(void);
int ldb_tdb_init(void);
int ldb_sqlite3_init(void);
int ldb_match_msg(struct ldb_context *ldb,
const struct ldb_message *msg,
const struct ldb_parse_tree *tree,
const struct ldb_dn *base,
enum ldb_scope scope);
void ldb_remove_attrib_handler(struct ldb_context *ldb, const char *attrib);
const struct ldb_attrib_handler *ldb_attrib_handler_syntax(struct ldb_context *ldb,
const char *syntax);
int ldb_set_attrib_handlers(struct ldb_context *ldb,
const struct ldb_attrib_handler *handlers,
unsigned num_handlers);
int ldb_setup_wellknown_attributes(struct ldb_context *ldb);
int ldb_set_attrib_handler_syntax(struct ldb_context *ldb,
const char *attr, const char *syntax);
/* The following definitions come from lib/ldb/common/ldb_attributes.c */
const char **ldb_subclass_list(struct ldb_context *ldb, const char *classname);
void ldb_subclass_remove(struct ldb_context *ldb, const char *classname);
int ldb_subclass_add(struct ldb_context *ldb, const char *classname, const char *subclass);
int ldb_handler_copy(struct ldb_context *ldb, void *mem_ctx,
const struct ldb_val *in, struct ldb_val *out);
int ldb_comparison_binary(struct ldb_context *ldb, void *mem_ctx,
const struct ldb_val *v1, const struct ldb_val *v2);
/* The following definitions come from lib/ldb/common/ldb_controls.c */
struct ldb_control *get_control_from_list(struct ldb_control **controls, const char *oid);
int save_controls(struct ldb_control *exclude, struct ldb_request *req, struct ldb_control ***saver);
int check_critical_controls(struct ldb_control **controls);
/* The following definitions come from lib/ldb/common/ldb_utf8.c */
char *ldb_casefold_default(void *context, void *mem_ctx, const char *s);
void ldb_msg_remove_element(struct ldb_message *msg, struct ldb_message_element *el);
/**
Obtain current/next database sequence number
*/
int ldb_sequence_number(struct ldb_context *ldb, enum ldb_sequence_type type, uint64_t *seq_num);
#define LDB_SEQ_GLOBAL_SEQUENCE 0x01
#define LDB_SEQ_TIMESTAMP_SEQUENCE 0x02
#endif
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