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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 20
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 #define MF_RECOVERYONLY 0x40
72 #define MF_SWAPPRIO     0x80
73 #define MF_ZRAMSIZE     0x100
74 #define MF_VERIFY       0x200
75 /*
76  * There is no emulated sdcard daemon running on /data/media on this device,
77  * so treat the physical SD card as the only external storage device,
78  * a la the Nexus One.
79  */
80 #define MF_NOEMULATEDSD 0x400
81 
82 #define DM_BUF_SIZE 4096
83 
84 #endif /* __CORE_FS_MGR_PRIV_H */
85 
86