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/*
Unix SMB/CIFS implementation.
Registry interface
Copyright (C) Jelmer Vernooij 2004.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "registry.h"
#include "lib/ldb/include/ldb.h"
static char *reg_path_to_ldb(TALLOC_CTX *mem_ctx, const char *path, const char *add)
{
char *ret = talloc_strdup(mem_ctx, "");
char *mypath = strdup(path);
char *end = mypath, *begin;
if(add)
ret = talloc_asprintf_append(ret, "%s", add);
while(end) {
char *keyname;
begin = strrchr(end, '\\');
if(begin) keyname = begin + 1;
else keyname = mypath;
if(strlen(keyname))
ret = talloc_asprintf_append(ret, "key=%s,", keyname);
if(begin) {
*begin = '\0';
end = begin-1;
} else {
end = NULL;
}
}
SAFE_FREE(mypath);
ret[strlen(ret)-1] = '\0';
if(strlen(ret) == 0) return NULL;
return ret;
}
static WERROR ldb_get_subkey_by_id(TALLOC_CTX *mem_ctx, struct registry_key *k, int idx, struct registry_key **subkey)
{
struct ldb_context *c = k->hive->backend_data;
int ret;
struct ldb_message **msg;
struct ldb_message_element *el;
ret = ldb_search(c, (char *)k->backend_data, LDB_SCOPE_ONELEVEL, "(key=*)", NULL,&msg);
if(ret < 0) {
DEBUG(0, ("Error getting subkeys for '%s': %s\n", (char *)k->backend_data, ldb_errstring(c)));
return WERR_FOOBAR;
}
if(idx >= ret) return WERR_NO_MORE_ITEMS;
el = ldb_msg_find_element(msg[idx], "key");
*subkey = talloc_p(mem_ctx, struct registry_key);
(*subkey)->name = talloc_strdup(mem_ctx, el->values[0].data);
(*subkey)->backend_data = talloc_strdup(mem_ctx, msg[idx]->dn);
ldb_search_free(c, msg);
return WERR_OK;
}
static WERROR ldb_get_value_by_id(TALLOC_CTX *mem_ctx, struct registry_key *k, int idx, struct registry_value **value)
{
struct ldb_context *c = k->hive->backend_data;
int ret;
struct ldb_message **msg;
struct ldb_message_element *el;
ret = ldb_search(c, (char *)k->backend_data, LDB_SCOPE_ONELEVEL, "(value=*)", NULL,&msg);
if(ret < 0) {
DEBUG(0, ("Error getting values for '%s': %s\n", (char *)k->backend_data, ldb_errstring(c)));
return WERR_FOOBAR;
}
if(idx >= ret) return WERR_NO_MORE_ITEMS;
el = ldb_msg_find_element(msg[idx], "value");
*value = talloc_p(mem_ctx, struct registry_value);
(*value)->name = talloc_strdup(mem_ctx, el->values[0].data);
(*value)->backend_data = talloc_strdup(mem_ctx, msg[idx]->dn);
ldb_search_free(c, msg);
return WERR_OK;
}
static WERROR ldb_open_key(TALLOC_CTX *mem_ctx, struct registry_hive *h, const char *name, struct registry_key **key)
{
struct ldb_context *c = h->backend_data;
struct ldb_message **msg;
char *ldap_path;
int ret;
ldap_path = reg_path_to_ldb(mem_ctx, name, NULL);
ret = ldb_search(c, ldap_path, LDB_SCOPE_BASE, "(key=*)", NULL,&msg);
if(ret == 0) {
return WERR_NO_MORE_ITEMS;
} else if(ret < 0) {
DEBUG(0, ("Error opening key '%s': %s\n", ldap_path, ldb_errstring(c)));
return WERR_FOOBAR;
}
*key = talloc_p(mem_ctx, struct registry_key);
(*key)->name = talloc_strdup(mem_ctx, strrchr(name, '\\'));
(*key)->backend_data = talloc_strdup(mem_ctx, msg[0]->dn);
ldb_search_free(c, msg);
return WERR_OK;
}
static WERROR ldb_open_hive(struct registry_hive *hive, struct registry_key **k)
{
struct ldb_context *c;
if (!hive->location) return WERR_INVALID_PARAM;
c = ldb_connect(hive->location, 0, NULL);
if(!c) {
DEBUG(1, ("ldb_open_hive: %s\n", ldb_errstring(hive->backend_data)));
return WERR_FOOBAR;
}
ldb_set_debug_stderr(c);
hive->backend_data = c;
hive->root = talloc_zero_p(hive, struct registry_key);
hive->root->name = talloc_strdup(hive->root, "");
return WERR_OK;
}
static WERROR ldb_add_key (TALLOC_CTX *mem_ctx, struct registry_key *parent, const char *name, uint32_t access_mask, SEC_DESC *sd, struct registry_key **newkey)
{
struct ldb_context *ctx = parent->hive->backend_data;
struct ldb_message msg;
int ret;
ZERO_STRUCT(msg);
msg.dn = reg_path_to_ldb(mem_ctx, parent->path, talloc_asprintf(mem_ctx, "key=%s,", name));
ldb_msg_add_string(ctx, &msg, "key", talloc_strdup(mem_ctx, name));
ret = ldb_add(ctx, &msg);
if (ret < 0) {
DEBUG(1, ("ldb_msg_add: %s\n", ldb_errstring(parent->hive->backend_data)));
return WERR_FOOBAR;
}
*newkey = talloc_zero_p(mem_ctx, struct registry_key);
(*newkey)->backend_data = msg.dn;
(*newkey)->name = talloc_strdup(mem_ctx, name);
return WERR_OK;
}
static WERROR ldb_del_key (struct registry_key *key)
{
int ret;
ret = ldb_delete(key->hive->backend_data, key->backend_data);
if (ret < 0) {
DEBUG(1, ("ldb_del_key: %s\n", ldb_errstring(key->hive->backend_data)));
return WERR_FOOBAR;
}
return WERR_OK;
}
static WERROR ldb_close_hive (struct registry_hive *hive)
{
ldb_close (hive->backend_data);
return WERR_OK;
}
static struct hive_operations reg_backend_ldb = {
.name = "ldb",
.add_key = ldb_add_key,
.del_key = ldb_del_key,
.open_hive = ldb_open_hive,
.close_hive = ldb_close_hive,
.open_key = ldb_open_key,
.get_value_by_index = ldb_get_value_by_id,
.get_subkey_by_index = ldb_get_subkey_by_id,
};
NTSTATUS registry_ldb_init(void)
{
return registry_register(®_backend_ldb);
}
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