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gerrit.omnirom.org / android_bionic / 9584fa46e9dd7071f8ad870341e7a0ab5ab918e8 / . / libc / kernel / uapi / linux / fscrypt.h
blob: 75a554e08f43e798b3551c3f3e166b41b9fecc26 [file] [log] [blame]
Christopher Ferris9584fa42019-12-09 15:36:13 -0800[diff] [blame^]1/****************************************************************************
2 ****************************************************************************
3 ***
4 *** This header was automatically generated from a Linux kernel header
5 *** of the same name, to make information necessary for userspace to
6 *** call into the kernel available to libc. It contains only constants,
7 *** structures, and macros generated from the original header, and thus,
8 *** contains no copyrightable information.
9 ***
10 *** To edit the content of this header, modify the corresponding
11 *** source file (e.g. under external/kernel-headers/original/) then
12 *** run bionic/libc/kernel/tools/update_all.py
13 ***
14 *** Any manual change here will be lost the next time this script will
15 *** be run. You've been warned!
16 ***
17 ****************************************************************************
18 ****************************************************************************/
19#ifndef _UAPI_LINUX_FSCRYPT_H
20#define _UAPI_LINUX_FSCRYPT_H
21#include <linux/types.h>
22#define FSCRYPT_POLICY_FLAGS_PAD_4 0x00
23#define FSCRYPT_POLICY_FLAGS_PAD_8 0x01
24#define FSCRYPT_POLICY_FLAGS_PAD_16 0x02
25#define FSCRYPT_POLICY_FLAGS_PAD_32 0x03
26#define FSCRYPT_POLICY_FLAGS_PAD_MASK 0x03
27#define FSCRYPT_POLICY_FLAG_DIRECT_KEY 0x04
28#define FSCRYPT_POLICY_FLAG_IV_INO_LBLK_64 0x08
29#define FSCRYPT_POLICY_FLAGS_VALID 0x0F
30#define FSCRYPT_MODE_AES_256_XTS 1
31#define FSCRYPT_MODE_AES_256_CTS 4
32#define FSCRYPT_MODE_AES_128_CBC 5
33#define FSCRYPT_MODE_AES_128_CTS 6
34#define FSCRYPT_MODE_ADIANTUM 9
35#define __FSCRYPT_MODE_MAX 9
36#define FSCRYPT_POLICY_V1 0
37#define FSCRYPT_KEY_DESCRIPTOR_SIZE 8
38struct fscrypt_policy_v1 {
39 __u8 version;
40 __u8 contents_encryption_mode;
41 __u8 filenames_encryption_mode;
42 __u8 flags;
43 __u8 master_key_descriptor[FSCRYPT_KEY_DESCRIPTOR_SIZE];
44};
45#define fscrypt_policy fscrypt_policy_v1
46#define FSCRYPT_KEY_DESC_PREFIX "fscrypt:"
47#define FSCRYPT_KEY_DESC_PREFIX_SIZE 8
48#define FSCRYPT_MAX_KEY_SIZE 64
49struct fscrypt_key {
50 __u32 mode;
51 __u8 raw[FSCRYPT_MAX_KEY_SIZE];
52 __u32 size;
53};
54#define FSCRYPT_POLICY_V2 2
55#define FSCRYPT_KEY_IDENTIFIER_SIZE 16
56struct fscrypt_policy_v2 {
57 __u8 version;
58 __u8 contents_encryption_mode;
59 __u8 filenames_encryption_mode;
60 __u8 flags;
61 __u8 __reserved[4];
62 __u8 master_key_identifier[FSCRYPT_KEY_IDENTIFIER_SIZE];
63};
64struct fscrypt_get_policy_ex_arg {
65 __u64 policy_size;
66 union {
67 __u8 version;
68 struct fscrypt_policy_v1 v1;
69 struct fscrypt_policy_v2 v2;
70 } policy;
71};
72#define FSCRYPT_KEY_SPEC_TYPE_DESCRIPTOR 1
73#define FSCRYPT_KEY_SPEC_TYPE_IDENTIFIER 2
74struct fscrypt_key_specifier {
75 __u32 type;
76 __u32 __reserved;
77 union {
78 __u8 __reserved[32];
79 __u8 descriptor[FSCRYPT_KEY_DESCRIPTOR_SIZE];
80 __u8 identifier[FSCRYPT_KEY_IDENTIFIER_SIZE];
81 } u;
82};
83struct fscrypt_add_key_arg {
84 struct fscrypt_key_specifier key_spec;
85 __u32 raw_size;
86 __u32 __reserved[9];
87 __u8 raw[];
88};
89struct fscrypt_remove_key_arg {
90 struct fscrypt_key_specifier key_spec;
91#define FSCRYPT_KEY_REMOVAL_STATUS_FLAG_FILES_BUSY 0x00000001
92#define FSCRYPT_KEY_REMOVAL_STATUS_FLAG_OTHER_USERS 0x00000002
93 __u32 removal_status_flags;
94 __u32 __reserved[5];
95};
96struct fscrypt_get_key_status_arg {
97 struct fscrypt_key_specifier key_spec;
98 __u32 __reserved[6];
99#define FSCRYPT_KEY_STATUS_ABSENT 1
100#define FSCRYPT_KEY_STATUS_PRESENT 2
101#define FSCRYPT_KEY_STATUS_INCOMPLETELY_REMOVED 3
102 __u32 status;
103#define FSCRYPT_KEY_STATUS_FLAG_ADDED_BY_SELF 0x00000001
104 __u32 status_flags;
105 __u32 user_count;
106 __u32 __out_reserved[13];
107};
108#define FS_IOC_SET_ENCRYPTION_POLICY _IOR('f', 19, struct fscrypt_policy)
109#define FS_IOC_GET_ENCRYPTION_PWSALT _IOW('f', 20, __u8[16])
110#define FS_IOC_GET_ENCRYPTION_POLICY _IOW('f', 21, struct fscrypt_policy)
111#define FS_IOC_GET_ENCRYPTION_POLICY_EX _IOWR('f', 22, __u8[9])
112#define FS_IOC_ADD_ENCRYPTION_KEY _IOWR('f', 23, struct fscrypt_add_key_arg)
113#define FS_IOC_REMOVE_ENCRYPTION_KEY _IOWR('f', 24, struct fscrypt_remove_key_arg)
114#define FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS _IOWR('f', 25, struct fscrypt_remove_key_arg)
115#define FS_IOC_GET_ENCRYPTION_KEY_STATUS _IOWR('f', 26, struct fscrypt_get_key_status_arg)
116#define FS_KEY_DESCRIPTOR_SIZE FSCRYPT_KEY_DESCRIPTOR_SIZE
117#define FS_POLICY_FLAGS_PAD_4 FSCRYPT_POLICY_FLAGS_PAD_4
118#define FS_POLICY_FLAGS_PAD_8 FSCRYPT_POLICY_FLAGS_PAD_8
119#define FS_POLICY_FLAGS_PAD_16 FSCRYPT_POLICY_FLAGS_PAD_16
120#define FS_POLICY_FLAGS_PAD_32 FSCRYPT_POLICY_FLAGS_PAD_32
121#define FS_POLICY_FLAGS_PAD_MASK FSCRYPT_POLICY_FLAGS_PAD_MASK
122#define FS_POLICY_FLAG_DIRECT_KEY FSCRYPT_POLICY_FLAG_DIRECT_KEY
123#define FS_POLICY_FLAGS_VALID FSCRYPT_POLICY_FLAGS_VALID
124#define FS_ENCRYPTION_MODE_INVALID 0
125#define FS_ENCRYPTION_MODE_AES_256_XTS FSCRYPT_MODE_AES_256_XTS
126#define FS_ENCRYPTION_MODE_AES_256_GCM 2
127#define FS_ENCRYPTION_MODE_AES_256_CBC 3
128#define FS_ENCRYPTION_MODE_AES_256_CTS FSCRYPT_MODE_AES_256_CTS
129#define FS_ENCRYPTION_MODE_AES_128_CBC FSCRYPT_MODE_AES_128_CBC
130#define FS_ENCRYPTION_MODE_AES_128_CTS FSCRYPT_MODE_AES_128_CTS
131#define FS_ENCRYPTION_MODE_SPECK128_256_XTS 7
132#define FS_ENCRYPTION_MODE_SPECK128_256_CTS 8
133#define FS_ENCRYPTION_MODE_ADIANTUM FSCRYPT_MODE_ADIANTUM
134#define FS_KEY_DESC_PREFIX FSCRYPT_KEY_DESC_PREFIX
135#define FS_KEY_DESC_PREFIX_SIZE FSCRYPT_KEY_DESC_PREFIX_SIZE
136#define FS_MAX_KEY_SIZE FSCRYPT_MAX_KEY_SIZE
137#endif