1 /*
2  * Copyright (C) 2008 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 _ASEC_H
18 #define _ASEC_H
19 
20 struct asec_superblock {
21 #define ASEC_SB_MAGIC 0xc0def00d
22     unsigned int magic;
23 
24 #define ASEC_SB_VER 1
25     unsigned char ver;
26 
27 #define ASEC_SB_C_CIPHER_NONE    0
28 #define ASEC_SB_C_CIPHER_TWOFISH 1
29 #define ASEC_SB_C_CIPHER_AES     2
30     unsigned char c_cipher;
31 
32 #define ASEC_SB_C_CHAIN_NONE 0
33     unsigned char c_chain;
34 
35 #define ASEC_SB_C_OPTS_NONE 0
36 #define ASEC_SB_C_OPTS_EXT4 1
37     unsigned char c_opts;
38 
39 #define ASEC_SB_C_MODE_NONE 0
40     unsigned char c_mode;
41 } __attribute__((packed));
42 
43 #endif
44