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60 lines
1.7 KiB
60 lines
1.7 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* Asymmetric public-key cryptography key subtype |
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* |
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* See Documentation/crypto/asymmetric-keys.rst |
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* |
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* Copyright (C) 2012 Red Hat, Inc. All Rights Reserved. |
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* Written by David Howells ([email protected]) |
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*/ |
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#ifndef _KEYS_ASYMMETRIC_SUBTYPE_H |
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#define _KEYS_ASYMMETRIC_SUBTYPE_H |
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#include <linux/seq_file.h> |
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#include <keys/asymmetric-type.h> |
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struct kernel_pkey_query; |
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struct kernel_pkey_params; |
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struct public_key_signature; |
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/* |
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* Keys of this type declare a subtype that indicates the handlers and |
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* capabilities. |
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*/ |
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struct asymmetric_key_subtype { |
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struct module *owner; |
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const char *name; |
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unsigned short name_len; /* length of name */ |
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/* Describe a key of this subtype for /proc/keys */ |
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void (*describe)(const struct key *key, struct seq_file *m); |
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/* Destroy a key of this subtype */ |
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void (*destroy)(void *payload_crypto, void *payload_auth); |
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int (*query)(const struct kernel_pkey_params *params, |
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struct kernel_pkey_query *info); |
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/* Encrypt/decrypt/sign data */ |
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int (*eds_op)(struct kernel_pkey_params *params, |
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const void *in, void *out); |
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/* Verify the signature on a key of this subtype (optional) */ |
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int (*verify_signature)(const struct key *key, |
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const struct public_key_signature *sig); |
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}; |
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/** |
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* asymmetric_key_subtype - Get the subtype from an asymmetric key |
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* @key: The key of interest. |
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* |
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* Retrieves and returns the subtype pointer of the asymmetric key from the |
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* type-specific data attached to the key. |
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*/ |
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static inline |
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struct asymmetric_key_subtype *asymmetric_key_subtype(const struct key *key) |
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{ |
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return key->payload.data[asym_subtype]; |
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} |
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#endif /* _KEYS_ASYMMETRIC_SUBTYPE_H */
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