| /**************************************************************************** |
| **************************************************************************** |
| *** |
| *** 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_FSVERITY_H |
| #define _UAPI_LINUX_FSVERITY_H |
| #include <linux/ioctl.h> |
| #include <linux/types.h> |
| #define FS_VERITY_HASH_ALG_SHA256 1 |
| #define FS_VERITY_HASH_ALG_SHA512 2 |
| struct fsverity_enable_arg { |
| __u32 version; |
| __u32 hash_algorithm; |
| __u32 block_size; |
| __u32 salt_size; |
| __u64 salt_ptr; |
| __u32 sig_size; |
| __u32 __reserved1; |
| __u64 sig_ptr; |
| __u64 __reserved2[11]; |
| }; |
| struct fsverity_digest { |
| __u16 digest_algorithm; |
| __u16 digest_size; |
| __u8 digest[]; |
| }; |
| struct fsverity_descriptor { |
| __u8 version; |
| __u8 hash_algorithm; |
| __u8 log_blocksize; |
| __u8 salt_size; |
| __le32 __reserved_0x04; |
| __le64 data_size; |
| __u8 root_hash[64]; |
| __u8 salt[32]; |
| __u8 __reserved[144]; |
| }; |
| struct fsverity_formatted_digest { |
| char magic[8]; |
| __le16 digest_algorithm; |
| __le16 digest_size; |
| __u8 digest[]; |
| }; |
| #define FS_VERITY_METADATA_TYPE_MERKLE_TREE 1 |
| #define FS_VERITY_METADATA_TYPE_DESCRIPTOR 2 |
| #define FS_VERITY_METADATA_TYPE_SIGNATURE 3 |
| struct fsverity_read_metadata_arg { |
| __u64 metadata_type; |
| __u64 offset; |
| __u64 length; |
| __u64 buf_ptr; |
| __u64 __reserved; |
| }; |
| #define FS_IOC_ENABLE_VERITY _IOW('f', 133, struct fsverity_enable_arg) |
| #define FS_IOC_MEASURE_VERITY _IOWR('f', 134, struct fsverity_digest) |
| #define FS_IOC_READ_VERITY_METADATA _IOWR('f', 135, struct fsverity_read_metadata_arg) |
| #endif |
