mirror of
https://github.com/samba-team/samba.git
synced 2024-12-25 23:21:54 +03:00
338e5a1d35
This will allow db_open_tdb() to be called from common code, which may already have a loadparm context loaded. It also slowly moves the lp_ctx up the stack, as required to remove the library loop between smbconf and the registry. Andrew Bartlett
129 lines
3.0 KiB
C
129 lines
3.0 KiB
C
/*
|
|
Unix SMB/CIFS implementation.
|
|
Database interface wrapper
|
|
|
|
Copyright (C) Volker Lendecke 2005-2007
|
|
|
|
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 3 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, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "includes.h"
|
|
#include "dbwrap/dbwrap.h"
|
|
#include "dbwrap/dbwrap_private.h"
|
|
#include "dbwrap/dbwrap_open.h"
|
|
#include "dbwrap/dbwrap_tdb.h"
|
|
#include "dbwrap/dbwrap_ctdb.h"
|
|
#include "lib/param/param.h"
|
|
#include "util_tdb.h"
|
|
#ifdef CLUSTER_SUPPORT
|
|
#include "ctdb_private.h"
|
|
#endif
|
|
|
|
bool db_is_local(const char *name)
|
|
{
|
|
#ifdef CLUSTER_SUPPORT
|
|
const char *sockname = lp_ctdbd_socket();
|
|
|
|
if (lp_clustering() && socket_exist(sockname)) {
|
|
const char *partname;
|
|
/* ctdb only wants the file part of the name */
|
|
partname = strrchr(name, '/');
|
|
if (partname) {
|
|
partname++;
|
|
} else {
|
|
partname = name;
|
|
}
|
|
/* allow ctdb for individual databases to be disabled */
|
|
if (lp_parm_bool(-1, "ctdb", partname, True)) {
|
|
return false;
|
|
}
|
|
}
|
|
#endif
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* open a database
|
|
*/
|
|
struct db_context *db_open(TALLOC_CTX *mem_ctx,
|
|
const char *name,
|
|
int hash_size, int tdb_flags,
|
|
int open_flags, mode_t mode,
|
|
enum dbwrap_lock_order lock_order)
|
|
{
|
|
struct db_context *result = NULL;
|
|
#ifdef CLUSTER_SUPPORT
|
|
const char *sockname;
|
|
#endif
|
|
|
|
switch (lock_order) {
|
|
case DBWRAP_LOCK_ORDER_1:
|
|
case DBWRAP_LOCK_ORDER_2:
|
|
case DBWRAP_LOCK_ORDER_3:
|
|
break;
|
|
default:
|
|
/*
|
|
* Only allow the 3 levels ctdb gives us.
|
|
*/
|
|
errno = EINVAL;
|
|
return NULL;
|
|
}
|
|
|
|
#ifdef CLUSTER_SUPPORT
|
|
sockname = lp_ctdbd_socket();
|
|
|
|
if (lp_clustering()) {
|
|
const char *partname;
|
|
|
|
if (!socket_exist(sockname)) {
|
|
DEBUG(1, ("ctdb socket does not exist - is ctdb not "
|
|
"running?\n"));
|
|
return NULL;
|
|
}
|
|
|
|
/* ctdb only wants the file part of the name */
|
|
partname = strrchr(name, '/');
|
|
if (partname) {
|
|
partname++;
|
|
} else {
|
|
partname = name;
|
|
}
|
|
/* allow ctdb for individual databases to be disabled */
|
|
if (lp_parm_bool(-1, "ctdb", partname, True)) {
|
|
result = db_open_ctdb(mem_ctx, partname, hash_size,
|
|
tdb_flags, open_flags, mode,
|
|
lock_order);
|
|
if (result == NULL) {
|
|
DEBUG(0,("failed to attach to ctdb %s\n",
|
|
partname));
|
|
if (errno == 0) {
|
|
errno = EIO;
|
|
}
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
if (result == NULL) {
|
|
struct loadparm_context *lp_ctx = loadparm_init_s3(mem_ctx, loadparm_s3_context());
|
|
result = db_open_tdb(mem_ctx, lp_ctx, name, hash_size,
|
|
tdb_flags, open_flags, mode,
|
|
lock_order);
|
|
talloc_unlink(mem_ctx, lp_ctx);
|
|
}
|
|
return result;
|
|
}
|