45 lines
1.2 KiB
C
45 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _UAPI_LINUX_BLK_CRYPTO_H
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#define _UAPI_LINUX_BLK_CRYPTO_H
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#include <linux/ioctl.h>
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#include <linux/types.h>
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struct blk_crypto_import_key_arg {
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/* Raw key (input) */
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__u64 raw_key_ptr;
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__u64 raw_key_size;
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/* Long-term wrapped key blob (output) */
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__u64 lt_key_ptr;
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__u64 lt_key_size;
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__u64 reserved[4];
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};
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struct blk_crypto_generate_key_arg {
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/* Long-term wrapped key blob (output) */
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__u64 lt_key_ptr;
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__u64 lt_key_size;
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__u64 reserved[4];
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};
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struct blk_crypto_prepare_key_arg {
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/* Long-term wrapped key blob (input) */
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__u64 lt_key_ptr;
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__u64 lt_key_size;
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/* Ephemerally-wrapped key blob (output) */
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__u64 eph_key_ptr;
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__u64 eph_key_size;
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__u64 reserved[4];
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};
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/*
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* These ioctls share the block device ioctl space; see uapi/linux/fs.h.
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* 140-141 are reserved for future blk-crypto ioctls; any more than that would
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* require an additional allocation from the block device ioctl space.
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*/
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#define BLKCRYPTOIMPORTKEY _IOWR(0x12, 137, struct blk_crypto_import_key_arg)
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#define BLKCRYPTOGENERATEKEY _IOWR(0x12, 138, struct blk_crypto_generate_key_arg)
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#define BLKCRYPTOPREPAREKEY _IOWR(0x12, 139, struct blk_crypto_prepare_key_arg)
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#endif /* _UAPI_LINUX_BLK_CRYPTO_H */
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