| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
| 2 | /* |
| 3 | * fs-verity user API |
| 4 | * |
| 5 | * These ioctls can be used on filesystems that support fs-verity. See the |
| 6 | * "User API" section of Documentation/filesystems/fsverity.rst. |
| 7 | * |
| 8 | * Copyright 2019 Google LLC |
| 9 | */ |
| 10 | #ifndef _UAPI_LINUX_FSVERITY_H |
| 11 | #define _UAPI_LINUX_FSVERITY_H |
| 12 | |
| 13 | #include <linux/ioctl.h> |
| 14 | #include <linux/types.h> |
| 15 | |
| 16 | #define FS_VERITY_HASH_ALG_SHA256 1 |
| 17 | #define FS_VERITY_HASH_ALG_SHA512 2 |
| 18 | |
| 19 | struct fsverity_enable_arg { |
| 20 | __u32 version; |
| 21 | __u32 hash_algorithm; |
| 22 | __u32 block_size; |
| 23 | __u32 salt_size; |
| 24 | __u64 salt_ptr; |
| 25 | __u32 sig_size; |
| 26 | __u32 __reserved1; |
| 27 | __u64 sig_ptr; |
| 28 | __u64 __reserved2[11]; |
| 29 | }; |
| 30 | |
| 31 | struct fsverity_digest { |
| 32 | __u16 digest_algorithm; |
| 33 | __u16 digest_size; /* input/output */ |
| 34 | __u8 digest[]; |
| 35 | }; |
| 36 | |
| 37 | #define FS_IOC_ENABLE_VERITY _IOW('f', 133, struct fsverity_enable_arg) |
| 38 | #define FS_IOC_MEASURE_VERITY _IOWR('f', 134, struct fsverity_digest) |
| 39 | |
| 40 | #endif /* _UAPI_LINUX_FSVERITY_H */ |