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/* $OpenBSD: schema.h,v 1.7 2010/11/04 15:35:00 martinh Exp $ */
/*
* Copyright (c) 2010 Martin Hedenfalk <martinh@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _schema_h_
#define _schema_h_
#define OBJ_NAME(obj) ((obj)->names ? SLIST_FIRST((obj)->names)->name : \
(obj)->oid)
#define ATTR_NAME(at) OBJ_NAME(at)
enum usage {
USAGE_USER_APP,
USAGE_DIR_OP, /* operational attribute */
USAGE_DIST_OP, /* operational attribute */
USAGE_DSA_OP /* operational attribute */
};
enum match_rule_type {
MATCH_EQUALITY,
MATCH_ORDERING,
MATCH_SUBSTR,
};
struct name {
SLIST_ENTRY(name) next;
char *name;
};
SLIST_HEAD(name_list, name);
struct schema;
struct syntax {
char *oid;
char *desc;
int (*is_valid)(struct schema *schema, char *value,
size_t len);
};
struct match_rule
{
char *oid;
char *name;
enum match_rule_type type;
int (*prepare)(char *value, size_t len);
const char *syntax_oid;
const char **alt_syntax_oids;
};
struct attr_type {
RB_ENTRY(attr_type) link;
char *oid;
struct name_list *names;
char *desc;
int obsolete;
struct attr_type *sup;
const struct match_rule *equality;
const struct match_rule *ordering;
const struct match_rule *substr;
const struct syntax *syntax;
int single;
int collective;
int immutable; /* no-user-modification */
enum usage usage;
};
RB_HEAD(attr_type_tree, attr_type);
RB_PROTOTYPE(attr_type_tree, attr_type, link, attr_oid_cmp);
struct attr_ptr {
SLIST_ENTRY(attr_ptr) next;
struct attr_type *attr_type;
};
SLIST_HEAD(attr_list, attr_ptr);
enum object_kind {
KIND_ABSTRACT,
KIND_STRUCTURAL,
KIND_AUXILIARY
};
struct object;
struct obj_ptr {
SLIST_ENTRY(obj_ptr) next;
struct object *object;
};
SLIST_HEAD(obj_list, obj_ptr);
struct object {
RB_ENTRY(object) link;
char *oid;
struct name_list *names;
char *desc;
int obsolete;
struct obj_list *sup;
enum object_kind kind;
struct attr_list *must;
struct attr_list *may;
};
RB_HEAD(object_tree, object);
RB_PROTOTYPE(object_tree, object, link, obj_oid_cmp);
struct oidname {
RB_ENTRY(oidname) link;
const char *on_name;
#define on_attr_type on_ptr.ou_attr_type
#define on_object on_ptr.ou_object
union {
struct attr_type *ou_attr_type;
struct object *ou_object;
} on_ptr;
};
RB_HEAD(oidname_tree, oidname);
RB_PROTOTYPE(oidname_tree, oidname, link, oidname_cmp);
struct symoid {
RB_ENTRY(symoid) link;
char *name; /* symbolic name */
char *oid;
};
RB_HEAD(symoid_tree, symoid);
RB_PROTOTYPE(symoid_tree, symoid, link, symoid_cmp);
#define SCHEMA_MAXPUSHBACK 128
struct schema
{
struct attr_type_tree attr_types;
struct oidname_tree attr_names;
struct object_tree objects;
struct oidname_tree object_names;
struct symoid_tree symbolic_oids;
FILE *fp;
const char *filename;
char pushback_buffer[SCHEMA_MAXPUSHBACK];
int pushback_index;
int lineno;
int error;
};
struct schema *schema_new(void);
int schema_parse(struct schema *schema,
const char *filename);
int schema_dump_object(struct object *obj,
char *buf, size_t size);
int schema_dump_attribute(struct attr_type *obj,
char *buf, size_t size);
int schema_dump_match_rule(struct match_rule *mr,
char *buf, size_t size);
struct attr_type *lookup_attribute_by_oid(struct schema *schema, char *oid);
struct attr_type *lookup_attribute_by_name(struct schema *schema, char *name);
struct attr_type *lookup_attribute(struct schema *schema, char *oid_or_name);
struct object *lookup_object_by_oid(struct schema *schema, char *oid);
struct object *lookup_object_by_name(struct schema *schema, char *name);
struct object *lookup_object(struct schema *schema, char *oid_or_name);
char *lookup_symbolic_oid(struct schema *schema, char *name);
int is_oidstr(const char *oidstr);
/* syntax.c */
const struct syntax *syntax_lookup(const char *oid);
/* matching.c */
extern struct match_rule match_rules[];
extern int num_match_rules;
const struct match_rule *match_rule_lookup(const char *oid);
#endif
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