arch/s390/include/asm/pkey.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Kernelspace interface to the pkey device driver
   4  *
   5  * Copyright IBM Corp. 2016,2019
   6  *
   7  * Author: Harald Freudenberger <freude@de.ibm.com>
   8  *
   9  */
  10
  11 #ifndef _KAPI_PKEY_H
  12 #define _KAPI_PKEY_H
  13
  14 #include <linux/ioctl.h>
  15 #include <linux/types.h>
  16 #include <uapi/asm/pkey.h>
  17
  18 /*
  19  * In-kernel API: Transform an key blob (of any type) into a protected key.
  20  * @param key pointer to a buffer containing the key blob
  21  * @param keylen size of the key blob in bytes
  22  * @param protkey pointer to buffer receiving the protected key
  23  * @return 0 on success, negative errno value on failure
  24  */
  25 int pkey_keyblob2pkey(const u8 *key, u32 keylen,
  26                       struct pkey_protkey *protkey);
  27
  28 #endif /* _KAPI_PKEY_H */