1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
/*
* Copyright (C) 2016 Team Win Recovery Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __EXT4CRYPT_TAR_H
#define __EXT4CRYPT_TAR_H
#include <sys/cdefs.h>
#include <stdbool.h>
#include <cutils/multiuser.h>
// ext4enc:TODO Include structure from somewhere sensible
// MUST be in sync with ext4_crypto.c in kernel
#define EXT4_KEY_DESCRIPTOR_SIZE 8
#define EXT4_KEY_DESCRIPTOR_SIZE_HEX 17
// ext4enc:TODO Get value from somewhere sensible
#define EXT4_IOC_SET_ENCRYPTION_POLICY _IOR('f', 19, struct ext4_encryption_policy)
#define EXT4_IOC_GET_ENCRYPTION_POLICY _IOW('f', 21, struct ext4_encryption_policy)
__BEGIN_DECLS
struct ext4_encryption_policy {
char version;
char contents_encryption_mode;
char filenames_encryption_mode;
char flags;
char master_key_descriptor[EXT4_KEY_DESCRIPTOR_SIZE];
} __attribute__((__packed__));
bool lookup_ref_key(const char* policy, char* policy_type);
bool lookup_ref_tar(const char* policy_type, char* policy);
void policy_to_hex(const char* policy, char* hex);
bool e4crypt_policy_set(const char *directory, const char *policy,
size_t policy_length, int contents_encryption_mode);
bool e4crypt_policy_get(const char *directory, char *policy,
size_t policy_length, int contents_encryption_mode);
void e4crypt_policy_fill_default_struct(struct ext4_encryption_policy *eep);
bool e4crypt_policy_set_struct(const char *directory, const struct ext4_encryption_policy *eep);
bool e4crypt_policy_get_struct(const char *directory, struct ext4_encryption_policy *eep);
bool e4crypt_set_mode();
__END_DECLS
#endif
|
