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