1  /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2  /*
3   * Copyright (c) 2022, Google LLC
4   */
5  
6  #ifndef _UAPI_LINUX_LOOP_LOADPIN_H
7  #define _UAPI_LINUX_LOOP_LOADPIN_H
8  
9  #define LOADPIN_IOC_MAGIC	'L'
10  
11  /**
12   * LOADPIN_IOC_SET_TRUSTED_VERITY_DIGESTS - Set up the root digests of verity devices
13   *                                          that loadpin should trust.
14   *
15   * Takes a file descriptor from which to read the root digests of trusted verity devices. The file
16   * is expected to contain a list of digests in ASCII format, with one line per digest. The ioctl
17   * must be issued on the securityfs attribute 'loadpin/dm-verity' (which can be typically found
18   * under /sys/kernel/security/loadpin/dm-verity).
19   */
20  #define LOADPIN_IOC_SET_TRUSTED_VERITY_DIGESTS _IOW(LOADPIN_IOC_MAGIC, 0x00, unsigned int)
21  
22  #endif /* _UAPI_LINUX_LOOP_LOADPIN_H */
23