sys/dev/crypto/padlock/padlock.h

   1 /*-
   2  * Copyright (c) 2005-2006 Pawel Jakub Dawidek <pjd@FreeBSD.org>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  * $FreeBSD: src/sys/crypto/via/padlock.h,v 1.4 2006/07/28 14:46:19 pjd Exp $
  27  */
  28
  29 #ifndef _PADLOCK_H_
  30 #define _PADLOCK_H_
  31
  32 #include <sys/spinlock.h>
  33 #include <opencrypto/cryptodev.h>
  34 #include <crypto/rijndael/rijndael.h>
  35
  36
  37 union padlock_cw {
  38         uint64_t raw;
  39         struct {
  40                 u_int round_count : 4;
  41                 u_int algorithm_type : 3;
  42                 u_int key_generation : 1;
  43                 u_int intermediate : 1;
  44                 u_int direction : 1;
  45                 u_int key_size : 2;
  46                 u_int filler0 : 20;
  47                 u_int filler1 : 32;
  48                 u_int filler2 : 32;
  49                 u_int filler3 : 32;
  50         } __field;
  51 };
  52 #define cw_round_count          __field.round_count
  53 #define cw_algorithm_type       __field.algorithm_type
  54 #define cw_key_generation       __field.key_generation
  55 #define cw_intermediate         __field.intermediate
  56 #define cw_direction            __field.direction
  57 #define cw_key_size             __field.key_size
  58 #define cw_filler0              __field.filler0
  59 #define cw_filler1              __field.filler1
  60 #define cw_filler2              __field.filler2
  61 #define cw_filler3              __field.filler3
  62
  63 struct padlock_session {
  64         union padlock_cw ses_cw __aligned(16);
  65         uint32_t        ses_ekey[4 * (RIJNDAEL_MAXNR + 1) + 4] __aligned(16);   /* 128 bit aligned */
  66         uint32_t        ses_dkey[4 * (RIJNDAEL_MAXNR + 1) + 4] __aligned(16);   /* 128 bit aligned */
  67         uint8_t         ses_iv[16] __aligned(16);                       /* 128 bit aligned */
  68         struct auth_hash *ses_axf;
  69         uint8_t         *ses_ictx;
  70         uint8_t         *ses_octx;
  71         int             ses_mlen;
  72         int             ses_used;
  73         uint32_t        ses_id;
  74         TAILQ_ENTRY(padlock_session) ses_next;
  75         void            *ses_freeaddr;
  76 } __aligned(16);
  77
  78 struct padlock_softc {
  79         int32_t         sc_cid;
  80         uint32_t        sc_sid;
  81         int32_t         sc_rng_ticks;
  82         struct callout  sc_rng_co;
  83         TAILQ_HEAD(padlock_sessions_head, padlock_session) sc_sessions;
  84         struct spinlock sc_sessions_lock;
  85 };
  86
  87 #define PADLOCK_ALIGN(p)        (void *)(roundup2((uintptr_t)(p), 16))
  88
  89 int     padlock_cipher_setup(struct padlock_session *ses,
  90             struct cryptoini *encini);
  91 int     padlock_cipher_process(struct padlock_session *ses,
  92             struct cryptodesc *enccrd, struct cryptop *crp);
  93 int     padlock_hash_setup(struct padlock_session *ses,
  94             struct cryptoini *macini);
  95 int     padlock_hash_process(struct padlock_session *ses,
  96             struct cryptodesc *maccrd, struct cryptop *crp);
  97 void    padlock_hash_free(struct padlock_session *ses);
  98 void    padlock_rng_init(struct padlock_softc *sc);
  99 void    padlock_rng_uninit(struct padlock_softc *sc);
 100
 101 #endif  /* !_PADLOCK_H_ */