fs_mgr_priv.h revision ab6b852235d99d752678312c155a3f1c140fb483 
1/*
2 * Copyright (C) 2012 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef __CORE_FS_MGR_PRIV_H
18#define __CORE_FS_MGR_PRIV_H
19
20#include <cutils/klog.h>
21#include <fs_mgr.h>
22
23#define INFO(x...)    KLOG_INFO("fs_mgr", x)
24#define ERROR(x...)   KLOG_ERROR("fs_mgr", x)
25
26#define CRYPTO_TMPFS_OPTIONS "size=128m,mode=0771,uid=1000,gid=1000"
27
28#define WAIT_TIMEOUT 5
29
30/* fstab has the following format:
31 *
32 * Any line starting with a # is a comment and ignored
33 *
34 * Any blank line is ignored
35 *
36 * All other lines must be in this format:
37 *   <source>  <mount_point> <fs_type> <mount_flags> <fs_options> <fs_mgr_options>
38 *
39 *   <mount_flags> is a comma separated list of flags that can be passed to the
40 *                 mount command.  The list includes noatime, nosuid, nodev, nodiratime,
41 *                 ro, rw, remount, defaults.
42 *
43 *   <fs_options> is a comma separated list of options accepted by the filesystem being
44 *                mounted.  It is passed directly to mount without being parsed
45 *
46 *   <fs_mgr_options> is a comma separated list of flags that control the operation of
47 *                     the fs_mgr program.  The list includes "wait", which will wait till
48 *                     the <source> file exists, and "check", which requests that the fs_mgr
49 *                     run an fscheck program on the <source> before mounting the filesystem.
50 *                     If check is specifed on a read-only filesystem, it is ignored.
51 *                     Also, "encryptable" means that filesystem can be encrypted.
52 *                     The "encryptable" flag _MUST_ be followed by a = and a string which
53 *                     is the location of the encryption keys.  It can either be a path
54 *                     to a file or partition which contains the keys, or the word "footer"
55 *                     which means the keys are in the last 16 Kbytes of the partition
56 *                     containing the filesystem.
57 *
58 * When the fs_mgr is requested to mount all filesystems, it will first mount all the
59 * filesystems that do _NOT_ specify check (including filesystems that are read-only and
60 * specify check, because check is ignored in that case) and then it will check and mount
61 * filesystem marked with check.
62 *
63 */
64
65#define MF_WAIT         0x1
66#define MF_CHECK        0x2
67#define MF_CRYPT        0x4
68#define MF_NONREMOVABLE 0x8
69#define MF_VOLDMANAGED  0x10
70#define MF_LENGTH       0x20
71
72#endif /* __CORE_FS_MGR_PRIV_H */
73
74