gcm_impl.h

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    1 /*
    2  * CDDL HEADER START
    3  *
    4  * The contents of this file are subject to the terms of the
    5  * Common Development and Distribution License (the "License").
    6  * You may not use this file except in compliance with the License.
    7  *
    8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
    9  * or https://opensource.org/licenses/CDDL-1.0.
   10  * See the License for the specific language governing permissions
   11  * and limitations under the License.
   12  *
   13  * When distributing Covered Code, include this CDDL HEADER in each
   14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
   15  * If applicable, add the following below this CDDL HEADER, with the
   16  * fields enclosed by brackets "[]" replaced with your own identifying
   17  * information: Portions Copyright [yyyy] [name of copyright owner]
   18  *
   19  * CDDL HEADER END
   20  */
   21 /*
   22  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
   23  */
   24 
   25 #ifndef _GCM_IMPL_H
   26 #define _GCM_IMPL_H
   27 
   28 /*
   29  * GCM function dispatcher.
   30  */
   31 
   32 #ifdef  __cplusplus
   33 extern "C" {
   34 #endif
   35 
   36 #include <sys/zfs_context.h>
   37 #include <sys/crypto/common.h>
   38 
   39 /*
   40  * Methods used to define GCM implementation
   41  *
   42  * @gcm_mul_f Perform carry-less multiplication
   43  * @gcm_will_work_f Function tests whether implementation will function
   44  */
   45 typedef void            (*gcm_mul_f)(uint64_t *, uint64_t *, uint64_t *);
   46 typedef boolean_t       (*gcm_will_work_f)(void);
   47 
   48 #define GCM_IMPL_NAME_MAX (16)
   49 
   50 typedef struct gcm_impl_ops {
   51         gcm_mul_f mul;
   52         gcm_will_work_f is_supported;
   53         char name[GCM_IMPL_NAME_MAX];
   54 } gcm_impl_ops_t;
   55 
   56 extern const gcm_impl_ops_t gcm_generic_impl;
   57 #if defined(__x86_64) && defined(HAVE_PCLMULQDQ)
   58 extern const gcm_impl_ops_t gcm_pclmulqdq_impl;
   59 #endif
   60 
   61 /*
   62  * Initializes fastest implementation
   63  */
   64 void gcm_impl_init(void);
   65 
   66 /*
   67  * Returns optimal allowed GCM implementation
   68  */
   69 const struct gcm_impl_ops *gcm_impl_get_ops(void);
   70 
   71 #ifdef  __cplusplus
   72 }
   73 #endif
   74 
   75 #endif  /* _GCM_IMPL_H */

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FreeBSD/Linux Kernel Cross Reference sys/contrib/openzfs/module/icp/include/modes/gcm_impl.h

FreeBSD/Linux Kernel Cross Reference
sys/contrib/openzfs/module/icp/include/modes/gcm_impl.h