/* SPDX-License-Identifier: GPL-2.0-or-later */
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/* keyctl kernel bits
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*
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* Copyright (C) 2016 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*/
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#ifndef __LINUX_KEYCTL_H
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#define __LINUX_KEYCTL_H
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#include <uapi/linux/keyctl.h>
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struct kernel_pkey_query {
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__u32 supported_ops; /* Which ops are supported */
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__u32 key_size; /* Size of the key in bits */
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__u16 max_data_size; /* Maximum size of raw data to sign in bytes */
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__u16 max_sig_size; /* Maximum size of signature in bytes */
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__u16 max_enc_size; /* Maximum size of encrypted blob in bytes */
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__u16 max_dec_size; /* Maximum size of decrypted blob in bytes */
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};
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enum kernel_pkey_operation {
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kernel_pkey_encrypt,
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kernel_pkey_decrypt,
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kernel_pkey_sign,
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kernel_pkey_verify,
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};
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struct kernel_pkey_params {
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struct key *key;
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const char *encoding; /* Encoding (eg. "oaep" or "raw" for none) */
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const char *hash_algo; /* Digest algorithm used (eg. "sha1") or NULL if N/A */
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char *info; /* Modified info string to be released later */
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__u32 in_len; /* Input data size */
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union {
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__u32 out_len; /* Output buffer size (enc/dec/sign) */
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__u32 in2_len; /* 2nd input data size (verify) */
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};
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enum kernel_pkey_operation op : 8;
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};
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#endif /* __LINUX_KEYCTL_H */
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