76 lines
1.9 KiB
C
76 lines
1.9 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or https://opensource.org/licenses/CDDL-1.0.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
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*/
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#ifndef _GCM_IMPL_H
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#define _GCM_IMPL_H
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/*
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* GCM function dispatcher.
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <sys/zfs_context.h>
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#include <sys/crypto/common.h>
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/*
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* Methods used to define GCM implementation
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*
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* @gcm_mul_f Perform carry-less multiplication
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* @gcm_will_work_f Function tests whether implementation will function
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*/
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typedef void (*gcm_mul_f)(uint64_t *, uint64_t *, uint64_t *);
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typedef boolean_t (*gcm_will_work_f)(void);
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#define GCM_IMPL_NAME_MAX (16)
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typedef struct gcm_impl_ops {
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gcm_mul_f mul;
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gcm_will_work_f is_supported;
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char name[GCM_IMPL_NAME_MAX];
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} gcm_impl_ops_t;
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extern const gcm_impl_ops_t gcm_generic_impl;
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#if defined(__x86_64) && defined(HAVE_PCLMULQDQ)
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extern const gcm_impl_ops_t gcm_pclmulqdq_impl;
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#endif
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/*
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* Initializes fastest implementation
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*/
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void gcm_impl_init(void);
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/*
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* Returns optimal allowed GCM implementation
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*/
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const struct gcm_impl_ops *gcm_impl_get_ops(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _GCM_IMPL_H */
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