freebsd-dev/sys/opencrypto/gmac.h
John Baldwin 9b6b2f8608 Adjust crypto_apply function callbacks for OCF.
- crypto_apply() is only used for reading a buffer to compute a
  digest, so change the data pointer to a const pointer.

- To better match m_apply(), change the data pointer type to void *
  and the length from uint16_t to u_int.  The length field in
  particular matters as none of the apply logic was splitting requests
  larger than UINT16_MAX.

- Adjust the auth_xform Update callback to match the function
  prototype passed to crypto_apply() and crypto_apply_buf().  This
  removes the needs for casts when using the Update callback.

- Change the Reinit and Setkey callbacks to also use a u_int length
  instead of uint16_t.

- Update auth transforms for the changes.  While here, use C99
  initializers for auth_hash structures and avoid casts on callbacks.

Reviewed by:	cem
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D25171
2020-06-10 21:18:19 +00:00

57 lines
2.1 KiB
C

/*-
* Copyright (c) 2014 The FreeBSD Foundation
* All rights reserved.
*
* This software was developed by John-Mark Gurney under
* the sponsorship of the FreeBSD Foundation and
* Rubicon Communications, LLC (Netgate).
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*
*/
#ifndef _GMAC_H_
#define _GMAC_H_
#include "gfmult.h"
#include <crypto/rijndael/rijndael.h>
#define GMAC_BLOCK_LEN 16
#define GMAC_DIGEST_LEN 16
struct aes_gmac_ctx {
struct gf128table4 ghashtbl;
struct gf128 hash;
uint32_t keysched[4*(RIJNDAEL_MAXNR + 1)];
uint8_t counter[GMAC_BLOCK_LEN];
int rounds;
};
void AES_GMAC_Init(void *);
void AES_GMAC_Setkey(void *, const uint8_t *, u_int);
void AES_GMAC_Reinit(void *, const uint8_t *, u_int);
int AES_GMAC_Update(void *, const void *, u_int);
void AES_GMAC_Final(uint8_t *, void *);
#endif /* _GMAC_H_ */