| /**************************************************************************** |
| **************************************************************************** |
| *** |
| *** This header was automatically generated from a Linux kernel header |
| *** of the same name, to make information necessary for userspace to |
| *** call into the kernel available to libc. It contains only constants, |
| *** structures, and macros generated from the original header, and thus, |
| *** contains no copyrightable information. |
| *** |
| *** To edit the content of this header, modify the corresponding |
| *** source file (e.g. under external/kernel-headers/original/) then |
| *** run bionic/libc/kernel/tools/update_all.py |
| *** |
| *** Any manual change here will be lost the next time this script will |
| *** be run. You've been warned! |
| *** |
| **************************************************************************** |
| ****************************************************************************/ |
| #ifndef _UAPI_LINUX_FSCRYPT_H |
| #define _UAPI_LINUX_FSCRYPT_H |
| #include <linux/ioctl.h> |
| #include <linux/types.h> |
| #define FSCRYPT_POLICY_FLAGS_PAD_4 0x00 |
| #define FSCRYPT_POLICY_FLAGS_PAD_8 0x01 |
| #define FSCRYPT_POLICY_FLAGS_PAD_16 0x02 |
| #define FSCRYPT_POLICY_FLAGS_PAD_32 0x03 |
| #define FSCRYPT_POLICY_FLAGS_PAD_MASK 0x03 |
| #define FSCRYPT_POLICY_FLAG_DIRECT_KEY 0x04 |
| #define FSCRYPT_POLICY_FLAG_IV_INO_LBLK_64 0x08 |
| #define FSCRYPT_POLICY_FLAG_IV_INO_LBLK_32 0x10 |
| #define FSCRYPT_MODE_AES_256_XTS 1 |
| #define FSCRYPT_MODE_AES_256_CTS 4 |
| #define FSCRYPT_MODE_AES_128_CBC 5 |
| #define FSCRYPT_MODE_AES_128_CTS 6 |
| #define FSCRYPT_MODE_ADIANTUM 9 |
| #define FSCRYPT_POLICY_V1 0 |
| #define FSCRYPT_KEY_DESCRIPTOR_SIZE 8 |
| struct fscrypt_policy_v1 { |
| __u8 version; |
| __u8 contents_encryption_mode; |
| __u8 filenames_encryption_mode; |
| __u8 flags; |
| __u8 master_key_descriptor[FSCRYPT_KEY_DESCRIPTOR_SIZE]; |
| }; |
| #define FSCRYPT_KEY_DESC_PREFIX "fscrypt:" |
| #define FSCRYPT_KEY_DESC_PREFIX_SIZE 8 |
| #define FSCRYPT_MAX_KEY_SIZE 64 |
| struct fscrypt_key { |
| __u32 mode; |
| __u8 raw[FSCRYPT_MAX_KEY_SIZE]; |
| __u32 size; |
| }; |
| #define FSCRYPT_POLICY_V2 2 |
| #define FSCRYPT_KEY_IDENTIFIER_SIZE 16 |
| struct fscrypt_policy_v2 { |
| __u8 version; |
| __u8 contents_encryption_mode; |
| __u8 filenames_encryption_mode; |
| __u8 flags; |
| __u8 __reserved[4]; |
| __u8 master_key_identifier[FSCRYPT_KEY_IDENTIFIER_SIZE]; |
| }; |
| struct fscrypt_get_policy_ex_arg { |
| __u64 policy_size; |
| union { |
| __u8 version; |
| struct fscrypt_policy_v1 v1; |
| struct fscrypt_policy_v2 v2; |
| } policy; |
| }; |
| #define FSCRYPT_KEY_SPEC_TYPE_DESCRIPTOR 1 |
| #define FSCRYPT_KEY_SPEC_TYPE_IDENTIFIER 2 |
| struct fscrypt_key_specifier { |
| __u32 type; |
| __u32 __reserved; |
| union { |
| __u8 __reserved[32]; |
| __u8 descriptor[FSCRYPT_KEY_DESCRIPTOR_SIZE]; |
| __u8 identifier[FSCRYPT_KEY_IDENTIFIER_SIZE]; |
| } u; |
| }; |
| struct fscrypt_provisioning_key_payload { |
| __u32 type; |
| __u32 __reserved; |
| __u8 raw[]; |
| }; |
| struct fscrypt_add_key_arg { |
| struct fscrypt_key_specifier key_spec; |
| __u32 raw_size; |
| __u32 key_id; |
| __u32 __reserved[7]; |
| #define __FSCRYPT_ADD_KEY_FLAG_HW_WRAPPED 0x00000001 |
| __u32 __flags; |
| __u8 raw[]; |
| }; |
| struct fscrypt_remove_key_arg { |
| struct fscrypt_key_specifier key_spec; |
| #define FSCRYPT_KEY_REMOVAL_STATUS_FLAG_FILES_BUSY 0x00000001 |
| #define FSCRYPT_KEY_REMOVAL_STATUS_FLAG_OTHER_USERS 0x00000002 |
| __u32 removal_status_flags; |
| __u32 __reserved[5]; |
| }; |
| struct fscrypt_get_key_status_arg { |
| struct fscrypt_key_specifier key_spec; |
| __u32 __reserved[6]; |
| #define FSCRYPT_KEY_STATUS_ABSENT 1 |
| #define FSCRYPT_KEY_STATUS_PRESENT 2 |
| #define FSCRYPT_KEY_STATUS_INCOMPLETELY_REMOVED 3 |
| __u32 status; |
| #define FSCRYPT_KEY_STATUS_FLAG_ADDED_BY_SELF 0x00000001 |
| __u32 status_flags; |
| __u32 user_count; |
| __u32 __out_reserved[13]; |
| }; |
| #define FS_IOC_SET_ENCRYPTION_POLICY _IOR('f', 19, struct fscrypt_policy_v1) |
| #define FS_IOC_GET_ENCRYPTION_PWSALT _IOW('f', 20, __u8[16]) |
| #define FS_IOC_GET_ENCRYPTION_POLICY _IOW('f', 21, struct fscrypt_policy_v1) |
| #define FS_IOC_GET_ENCRYPTION_POLICY_EX _IOWR('f', 22, __u8[9]) |
| #define FS_IOC_ADD_ENCRYPTION_KEY _IOWR('f', 23, struct fscrypt_add_key_arg) |
| #define FS_IOC_REMOVE_ENCRYPTION_KEY _IOWR('f', 24, struct fscrypt_remove_key_arg) |
| #define FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS _IOWR('f', 25, struct fscrypt_remove_key_arg) |
| #define FS_IOC_GET_ENCRYPTION_KEY_STATUS _IOWR('f', 26, struct fscrypt_get_key_status_arg) |
| #define FS_IOC_GET_ENCRYPTION_NONCE _IOR('f', 27, __u8[16]) |
| #define fscrypt_policy fscrypt_policy_v1 |
| #define FS_KEY_DESCRIPTOR_SIZE FSCRYPT_KEY_DESCRIPTOR_SIZE |
| #define FS_POLICY_FLAGS_PAD_4 FSCRYPT_POLICY_FLAGS_PAD_4 |
| #define FS_POLICY_FLAGS_PAD_8 FSCRYPT_POLICY_FLAGS_PAD_8 |
| #define FS_POLICY_FLAGS_PAD_16 FSCRYPT_POLICY_FLAGS_PAD_16 |
| #define FS_POLICY_FLAGS_PAD_32 FSCRYPT_POLICY_FLAGS_PAD_32 |
| #define FS_POLICY_FLAGS_PAD_MASK FSCRYPT_POLICY_FLAGS_PAD_MASK |
| #define FS_POLICY_FLAG_DIRECT_KEY FSCRYPT_POLICY_FLAG_DIRECT_KEY |
| #define FS_POLICY_FLAGS_VALID 0x07 |
| #define FS_ENCRYPTION_MODE_INVALID 0 |
| #define FS_ENCRYPTION_MODE_AES_256_XTS FSCRYPT_MODE_AES_256_XTS |
| #define FS_ENCRYPTION_MODE_AES_256_GCM 2 |
| #define FS_ENCRYPTION_MODE_AES_256_CBC 3 |
| #define FS_ENCRYPTION_MODE_AES_256_CTS FSCRYPT_MODE_AES_256_CTS |
| #define FS_ENCRYPTION_MODE_AES_128_CBC FSCRYPT_MODE_AES_128_CBC |
| #define FS_ENCRYPTION_MODE_AES_128_CTS FSCRYPT_MODE_AES_128_CTS |
| #define FS_ENCRYPTION_MODE_SPECK128_256_XTS 7 |
| #define FS_ENCRYPTION_MODE_SPECK128_256_CTS 8 |
| #define FS_ENCRYPTION_MODE_ADIANTUM FSCRYPT_MODE_ADIANTUM |
| #define FS_KEY_DESC_PREFIX FSCRYPT_KEY_DESC_PREFIX |
| #define FS_KEY_DESC_PREFIX_SIZE FSCRYPT_KEY_DESC_PREFIX_SIZE |
| #define FS_MAX_KEY_SIZE FSCRYPT_MAX_KEY_SIZE |
| #endif |