| Victor Hsieh | 506de61 | 2023-03-15 13:03:35 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2023 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 | //! Stable API definition copied from uapi/linux/fsverity.h |
| 18 | |
| 19 | use nix::{ioctl_readwrite, ioctl_write_ptr}; |
| 20 | |
| 21 | const FS_IOCTL_MAGIC: u8 = b'f'; |
| 22 | const FS_IOC_ENABLE_VERITY: u8 = 133; |
| 23 | const FS_IOCTL_READ_VERITY_METADATA: u8 = 135; |
| 24 | |
| 25 | pub const FS_VERITY_HASH_ALG_SHA256: u32 = 1; |
| 26 | pub const FS_VERITY_METADATA_TYPE_MERKLE_TREE: u64 = 1; |
| 27 | pub const FS_VERITY_METADATA_TYPE_SIGNATURE: u64 = 3; |
| 28 | |
| 29 | #[repr(C)] |
| 30 | pub struct fsverity_read_metadata_arg { |
| 31 | pub metadata_type: u64, |
| 32 | pub offset: u64, |
| 33 | pub length: u64, |
| 34 | pub buf_ptr: u64, |
| 35 | pub __reserved: u64, |
| 36 | } |
| 37 | |
| 38 | ioctl_readwrite!( |
| 39 | read_verity_metadata, |
| 40 | FS_IOCTL_MAGIC, |
| 41 | FS_IOCTL_READ_VERITY_METADATA, |
| 42 | fsverity_read_metadata_arg |
| 43 | ); |
| 44 | |
| 45 | #[repr(C)] |
| 46 | pub struct fsverity_enable_arg { |
| 47 | pub version: u32, |
| 48 | pub hash_algorithm: u32, |
| 49 | pub block_size: u32, |
| 50 | pub salt_size: u32, |
| 51 | pub salt_ptr: u64, |
| 52 | pub sig_size: u32, |
| 53 | pub __reserved1: u32, |
| 54 | pub sig_ptr: u64, |
| 55 | pub __reserved2: [u64; 11], |
| 56 | } |
| 57 | |
| 58 | ioctl_write_ptr!(enable_verity, FS_IOCTL_MAGIC, FS_IOC_ENABLE_VERITY, fsverity_enable_arg); |