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/*
ldb database library - map backend
Copyright (C) Jelmer Vernooij 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 2 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, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "includes.h"
#include "lib/ldb/include/ldb.h"
#include "lib/ldb/include/ldb_private.h"
#include "lib/ldb/ldb_map/ldb_map.h"
struct map_private {
struct ldb_map_mappings *mappings;
};
static struct ldb_dn *ldb_map_dn(struct ldb_module *module, const struct ldb_dn *dn)
{
/* FIXME */
return NULL;
}
static char *ldb_map_expression(struct ldb_module *module, const char *expr)
{
/* FIXME */
return NULL;
}
static const char **ldb_map_attrs(struct ldb_module *module, const char *const attrs[])
{
/* FIXME */
return NULL;
}
static struct ldb_message *ldb_map_message_incoming(struct ldb_module *module, const struct ldb_message *mi)
{
/* FIXME */
return NULL;
}
static struct ldb_message *ldb_map_message_outgoing(struct ldb_module *module, const struct ldb_message *mi)
{
/* FIXME */
return NULL;
}
/*
rename a record
*/
static int map_rename(struct ldb_module *module, const struct ldb_dn *olddn, const struct ldb_dn *newdn)
{
struct ldb_dn *n_olddn, *n_newdn;
int ret;
n_olddn = ldb_map_dn(module, olddn);
n_newdn = ldb_map_dn(module, newdn);
ret = ldb_next_rename_record(module, n_olddn, n_newdn);
talloc_free(n_olddn);
talloc_free(n_newdn);
return ret;
}
/*
delete a record
*/
static int map_delete(struct ldb_module *module, const struct ldb_dn *dn)
{
struct ldb_dn *newdn;
int ret;
newdn = ldb_map_dn(module, dn);
ret = ldb_next_delete_record(module, newdn);
talloc_free(newdn);
return ret;
}
/*
search for matching records
*/
static int map_search(struct ldb_module *module, const struct ldb_dn *base,
enum ldb_scope scope, const char *expression,
const char * const *attrs, struct ldb_message ***res)
{
char *newexpr;
int ret;
const char **newattrs;
struct ldb_dn *new_base;
struct ldb_message **newres;
int i;
newexpr = ldb_map_expression(module, expression);
newattrs = ldb_map_attrs(module, attrs);
new_base = ldb_map_dn(module, base);
ret = ldb_next_search(module, new_base, scope, newexpr, newattrs, &newres);
talloc_free(new_base);
talloc_free(newexpr);
talloc_free(newattrs);
for (i = 0; i < ret; i++) {
*res[i] = ldb_map_message_incoming(module, newres[i]);
talloc_free(newres[i]);
}
return ret;
}
/*
add a record
*/
static int map_add(struct ldb_module *module, const struct ldb_message *msg)
{
struct ldb_message *nmsg = ldb_map_message_outgoing(module, msg);
int ret;
ret = ldb_next_add_record(module, nmsg);
talloc_free(nmsg);
return ret;
}
/*
search for matching records using a ldb_parse_tree
*/
static int map_search_bytree(struct ldb_module *module, const struct ldb_dn *base,
enum ldb_scope scope, struct ldb_parse_tree *tree,
const char * const *attrs, struct ldb_message ***res)
{
struct map_private *privdat = module->private_data;
char *expression;
int ret;
expression = ldb_filter_from_tree(privdat, tree);
if (expression == NULL) {
return -1;
}
ret = map_search(module, base, scope, expression, attrs, res);
talloc_free(expression);
return ret;
}
/*
modify a record
*/
static int map_modify(struct ldb_module *module, const struct ldb_message *msg)
{
struct ldb_message *nmsg = ldb_map_message_outgoing(module, msg);
int ret;
ret = ldb_next_modify_record(module, nmsg);
talloc_free(nmsg);
return ret;
}
static int map_lock(struct ldb_module *module, const char *lockname)
{
return ldb_next_named_lock(module, lockname);
}
static int map_unlock(struct ldb_module *module, const char *lockname)
{
return ldb_next_named_unlock(module, lockname);
}
/*
return extended error information
*/
static const char *map_errstring(struct ldb_module *module)
{
return ldb_next_errstring(module);
}
static const struct ldb_module_ops map_ops = {
.name = "map",
.search = map_search,
.search_bytree = map_search_bytree,
.add_record = map_add,
.modify_record = map_modify,
.delete_record = map_delete,
.rename_record = map_rename,
.named_lock = map_lock,
.named_unlock = map_unlock,
.errstring = map_errstring
};
/* the init function */
struct ldb_module *ldb_map_init(struct ldb_context *ldb, struct ldb_map_mappings *mappings, const char *options[])
{
struct ldb_module *ctx;
struct map_private *data;
ctx = talloc(ldb, struct ldb_module);
if (!ctx)
return NULL;
data = talloc(ctx, struct map_private);
if (!data) {
talloc_free(ctx);
return NULL;
}
data->mappings = mappings;
ctx->private_data = data;
ctx->ldb = ldb;
ctx->prev = ctx->next = NULL;
ctx->ops = &map_ops;
return ctx;
}
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