183cb46954
There are a lot of pkey functions exported as in-kernel callable API functions but not used at all. This patch narrows down the pkey in-kernel API to what is currently only used and exploited. Within the kernel just use u32 without any leading __u32. Also functions declared in a header file in arch/s390/include/asm don't need a comment 'In-kernel API', this is by definition, otherwise the header file would be in arch/s390/include/uapi/asm. Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Reviewed-by: Ingo Franzki <ifranzki@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
29 lines
737 B
C
29 lines
737 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Kernelspace interface to the pkey device driver
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*
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* Copyright IBM Corp. 2016,2019
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*
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* Author: Harald Freudenberger <freude@de.ibm.com>
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*
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*/
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#ifndef _KAPI_PKEY_H
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#define _KAPI_PKEY_H
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#include <linux/ioctl.h>
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#include <linux/types.h>
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#include <uapi/asm/pkey.h>
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/*
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* In-kernel API: Transform an key blob (of any type) into a protected key.
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* @param key pointer to a buffer containing the key blob
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* @param keylen size of the key blob in bytes
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* @param protkey pointer to buffer receiving the protected key
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* @return 0 on success, negative errno value on failure
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*/
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int pkey_keyblob2pkey(const u8 *key, u32 keylen,
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struct pkey_protkey *protkey);
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#endif /* _KAPI_PKEY_H */
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