build:dist: call build-manpages-nogit for make dist and package generated files
[Samba/gebeck_regimport.git] / source3 / lib / dbwrap / dbwrap_open.c
blob515b4bff1d171e2e8da59937d870aea181a45ec1
1 /*
2 Unix SMB/CIFS implementation.
3 Database interface wrapper
5 Copyright (C) Volker Lendecke 2005-2007
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
21 #include "includes.h"
22 #include "dbwrap/dbwrap.h"
23 #include "dbwrap/dbwrap_private.h"
24 #include "dbwrap/dbwrap_open.h"
25 #include "dbwrap/dbwrap_tdb.h"
26 #include "dbwrap/dbwrap_ctdb.h"
27 #include "lib/param/param.h"
28 #include "util_tdb.h"
29 #ifdef CLUSTER_SUPPORT
30 #include "ctdb_private.h"
31 #endif
33 bool db_is_local(const char *name)
35 #ifdef CLUSTER_SUPPORT
36 const char *sockname = lp_ctdbd_socket();
38 if (lp_clustering() && socket_exist(sockname)) {
39 const char *partname;
40 /* ctdb only wants the file part of the name */
41 partname = strrchr(name, '/');
42 if (partname) {
43 partname++;
44 } else {
45 partname = name;
47 /* allow ctdb for individual databases to be disabled */
48 if (lp_parm_bool(-1, "ctdb", partname, True)) {
49 return false;
52 #endif
53 return true;
56 /**
57 * open a database
59 struct db_context *db_open(TALLOC_CTX *mem_ctx,
60 const char *name,
61 int hash_size, int tdb_flags,
62 int open_flags, mode_t mode,
63 enum dbwrap_lock_order lock_order)
65 struct db_context *result = NULL;
66 #ifdef CLUSTER_SUPPORT
67 const char *sockname;
68 #endif
70 switch (lock_order) {
71 case DBWRAP_LOCK_ORDER_1:
72 case DBWRAP_LOCK_ORDER_2:
73 case DBWRAP_LOCK_ORDER_3:
74 break;
75 default:
77 * Only allow the 3 levels ctdb gives us.
79 errno = EINVAL;
80 return NULL;
83 #ifdef CLUSTER_SUPPORT
84 sockname = lp_ctdbd_socket();
86 if (lp_clustering()) {
87 const char *partname;
89 if (!socket_exist(sockname)) {
90 DEBUG(1, ("ctdb socket does not exist - is ctdb not "
91 "running?\n"));
92 return NULL;
95 /* ctdb only wants the file part of the name */
96 partname = strrchr(name, '/');
97 if (partname) {
98 partname++;
99 } else {
100 partname = name;
102 /* allow ctdb for individual databases to be disabled */
103 if (lp_parm_bool(-1, "ctdb", partname, True)) {
104 result = db_open_ctdb(mem_ctx, partname, hash_size,
105 tdb_flags, open_flags, mode,
106 lock_order);
107 if (result == NULL) {
108 DEBUG(0,("failed to attach to ctdb %s\n",
109 partname));
110 if (errno == 0) {
111 errno = EIO;
113 return NULL;
118 #endif
120 if (result == NULL) {
121 struct loadparm_context *lp_ctx = loadparm_init_s3(mem_ctx, loadparm_s3_helpers());
122 result = dbwrap_local_open(mem_ctx, lp_ctx, name, hash_size,
123 tdb_flags, open_flags, mode,
124 lock_order);
125 talloc_unlink(mem_ctx, lp_ctx);
127 return result;