The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/netinet6/esp_rijndael.c

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    1 /*      $NetBSD: esp_rijndael.c,v 1.20 2006/11/16 01:33:45 christos Exp $       */
    2 /*      $KAME: esp_rijndael.c,v 1.4 2001/03/02 05:53:05 itojun Exp $    */
    3 
    4 /*
    5  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
    6  * All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  * 3. Neither the name of the project nor the names of its contributors
   17  *    may be used to endorse or promote products derived from this software
   18  *    without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
   21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
   24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   30  * SUCH DAMAGE.
   31  */
   32 
   33 #include <sys/cdefs.h>
   34 __KERNEL_RCSID(0, "$NetBSD: esp_rijndael.c,v 1.20 2006/11/16 01:33:45 christos Exp $");
   35 
   36 #include <sys/param.h>
   37 #include <sys/systm.h>
   38 #include <sys/socket.h>
   39 #include <sys/queue.h>
   40 
   41 #include <net/if.h>
   42 #include <net/route.h>
   43 #include <netinet/in.h>
   44 
   45 #include <netinet6/ipsec.h>
   46 #include <netinet6/esp.h>
   47 #include <netinet6/esp_rijndael.h>
   48 
   49 #include <crypto/rijndael/rijndael.h>
   50 
   51 #include <net/net_osdep.h>
   52 
   53 size_t
   54 esp_rijndael_schedlen(const struct esp_algorithm *algo)
   55 {
   56 
   57         return sizeof(rijndael_ctx);
   58 }
   59 
   60 int
   61 esp_rijndael_schedule(const struct esp_algorithm *algo,
   62     struct secasvar *sav)
   63 {
   64         rijndael_ctx *ctx;
   65 
   66         ctx = (rijndael_ctx *)sav->sched;
   67         rijndael_set_key(ctx,
   68             (u_char *)_KEYBUF(sav->key_enc), _KEYLEN(sav->key_enc) * 8);
   69         return 0;
   70 }
   71 
   72 int
   73 esp_rijndael_blockdecrypt(const struct esp_algorithm *algo,
   74     struct secasvar *sav, u_int8_t *s, u_int8_t *d)
   75 {
   76         rijndael_ctx *ctx;
   77 
   78         ctx = (rijndael_ctx *)sav->sched;
   79         rijndael_decrypt(ctx, s, d);
   80         return 0;
   81 }
   82 
   83 int
   84 esp_rijndael_blockencrypt(const struct esp_algorithm *algo,
   85     struct secasvar *sav, u_int8_t *s, u_int8_t *d)
   86 {
   87         rijndael_ctx *ctx;
   88 
   89         ctx = (rijndael_ctx *)sav->sched;
   90         rijndael_encrypt(ctx, s, d);
   91         return 0;
   92 }

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