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