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
20struct 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