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_H
18#define __CORE_FS_MGR_H
19
20#include <stdint.h>
21#include <linux/dm-ioctl.h>
22
23#ifdef __cplusplus
24extern "C" {
25#endif
26
27/*
28 * The entries must be kept in the same order as they were seen in the fstab.
29 * Unless explicitly requested, a lookup on mount point should always
30 * return the 1st one.
31 */
32struct fstab {
33    int num_entries;
34    struct fstab_rec *recs;
35    char *fstab_filename;
36};
37
38struct fstab_rec {
39    char *blk_device;
40    char *mount_point;
41    char *fs_type;
42    unsigned long flags;
43    char *fs_options;
44    int fs_mgr_flags;
45    char *key_loc;
46    char *verity_loc;
47    long long length;
48    char *label;
49    int partnum;
50    int swap_prio;
51    unsigned int zram_size;
52};
53
54struct fstab *fs_mgr_read_fstab(const char *fstab_path);
55void fs_mgr_free_fstab(struct fstab *fstab);
56
57#define FS_MGR_MNTALL_DEV_NEEDS_RECOVERY 3
58#define FS_MGR_MNTALL_DEV_NEEDS_ENCRYPTION 2
59#define FS_MGR_MNTALL_DEV_MIGHT_BE_ENCRYPTED 1
60#define FS_MGR_MNTALL_DEV_NOT_ENCRYPTED 0
61int fs_mgr_mount_all(struct fstab *fstab);
62
63#define FS_MGR_DOMNT_FAILED -1
64#define FS_MGR_DOMNT_BUSY -2
65int fs_mgr_do_mount(struct fstab *fstab, char *n_name, char *n_blk_device,
66                    char *tmp_mount_point);
67int fs_mgr_do_tmpfs_mount(char *n_name);
68int fs_mgr_unmount_all(struct fstab *fstab);
69int fs_mgr_get_crypt_info(struct fstab *fstab, char *key_loc,
70                          char *real_blk_device, int size);
71int fs_mgr_add_entry(struct fstab *fstab,
72                     const char *mount_point, const char *fs_type,
73                     const char *blk_device);
74struct fstab_rec *fs_mgr_get_entry_for_mount_point(struct fstab *fstab, const char *path);
75int fs_mgr_is_voldmanaged(struct fstab_rec *fstab);
76int fs_mgr_is_nonremovable(struct fstab_rec *fstab);
77int fs_mgr_is_encryptable(struct fstab_rec *fstab);
78int fs_mgr_is_noemulatedsd(struct fstab_rec *fstab);
79int fs_mgr_swapon_all(struct fstab *fstab);
80#ifdef __cplusplus
81}
82#endif
83
84#endif /* __CORE_FS_MGR_H */
85
86