/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* * fs-verity user API * * These ioctls can be used on filesystems that support fs-verity. See the * "User API" section of Documentation/filesystems/fsverity.rst. * * Copyright 2019 Google LLC */ #ifndef _LINUX_FSVERITY_H #define _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; /* input/output */ __u8 digest[]; }; #define FS_IOC_ENABLE_VERITY _IOW('f', 133, struct fsverity_enable_arg) #define FS_IOC_MEASURE_VERITY _IOWR('f', 134, struct fsverity_digest) #endif /* _LINUX_FSVERITY_H */