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 /*      $FreeBSD: src/sys/netinet6/esp_rijndael.c,v 1.4.4.1 2005/01/31 23:26:38 imp Exp $       */
    2 /*      $KAME: esp_rijndael.c,v 1.14 2003/08/28 08:23:20 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/param.h>
   34 #include <sys/systm.h>
   35 #include <sys/socket.h>
   36 #include <sys/queue.h>
   37 
   38 #include <net/if.h>
   39 #include <net/route.h>
   40 #include <netinet/in.h>
   41 
   42 #include <netinet6/ipsec.h>
   43 #include <netinet6/esp.h>
   44 #include <netinet6/esp_rijndael.h>
   45 
   46 #include <crypto/rijndael/rijndael.h>
   47 
   48 #include <net/net_osdep.h>
   49 
   50 size_t
   51 esp_rijndael_schedlen(algo)
   52         const struct esp_algorithm *algo;
   53 {
   54 
   55         return sizeof(rijndael_ctx);
   56 }
   57 
   58 int
   59 esp_rijndael_schedule(algo, sav)
   60         const struct esp_algorithm *algo;
   61         struct secasvar *sav;
   62 {
   63         rijndael_ctx *ctx;
   64 
   65         ctx = (rijndael_ctx *)sav->sched;
   66         rijndael_set_key(ctx,
   67             (u_char *)_KEYBUF(sav->key_enc), _KEYLEN(sav->key_enc) * 8);
   68         return 0;
   69 }
   70 
   71 int
   72 esp_rijndael_blockdecrypt(algo, sav, s, d)
   73         const struct esp_algorithm *algo;
   74         struct secasvar *sav;
   75         u_int8_t *s;
   76         u_int8_t *d;
   77 {
   78         rijndael_ctx *ctx;
   79 
   80         ctx = (rijndael_ctx *)sav->sched;
   81         rijndael_decrypt(ctx, s, d);
   82         return 0;
   83 }
   84 
   85 int
   86 esp_rijndael_blockencrypt(algo, sav, s, d)
   87         const struct esp_algorithm *algo;
   88         struct secasvar *sav;
   89         u_int8_t *s;
   90         u_int8_t *d;
   91 {
   92         rijndael_ctx *ctx;
   93 
   94         ctx = (rijndael_ctx *)sav->sched;
   95         rijndael_encrypt(ctx, s, d);
   96         return 0;
   97 }

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