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loadpin.h (833B) - Raw

      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 */