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       1  /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
       2  /*
       3   * Copyright (c) 2022, Google LLC
       4   */
       5  
       6  #ifndef _LINUX_LOOP_LOADPIN_H
       7  #define _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 /* _LINUX_LOOP_LOADPIN_H */