sys/netinet6/esp_camellia.c

   1 /*
   2  *
   3  * Copyright (c) 2006
   4  * NTT (Nippon Telegraph and Telephone Corporation) . All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *   notice, this list of conditions and the following disclaimer as
  11  *   the first lines of this file unmodified.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *   notice, this list of conditions and the following disclaimer in the
  14  *   documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY NTT ``AS IS'' AND ANY EXPRESS OR
  17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  19  * IN NO EVENT SHALL NTT BE LIABLE FOR ANY DIRECT, INDIRECT,
  20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  */
  27
  28 #include <sys/param.h>
  29 #include <sys/systm.h>
  30 #include <sys/socket.h>
  31 #include <sys/queue.h>
  32
  33 #include <net/if.h>
  34 #include <net/route.h>
  35 #include <netinet/in.h>
  36
  37 #include <netinet6/ipsec.h>
  38 #include <netinet6/esp.h>
  39 #include <netinet6/esp_camellia.h>
  40
  41 #include <crypto/camellia/camellia.h>
  42
  43 size_t
  44 esp_camellia_schedlen(const struct esp_algorithm *algo)
  45 {
  46
  47         return sizeof(camellia_ctx);
  48 }
  49
  50 int
  51 esp_camellia_schedule(const struct esp_algorithm *algo, struct secasvar *sav)
  52 {
  53         camellia_ctx *ctx;
  54
  55         ctx = (camellia_ctx *)sav->sched;
  56         camellia_set_key(ctx,
  57             (u_char *)_KEYBUF(sav->key_enc), _KEYLEN(sav->key_enc) * 8);
  58         return 0;
  59 }
  60
  61 int
  62 esp_camellia_blockdecrypt(const struct esp_algorithm *algo, struct secasvar *sav,
  63                         u_int8_t *s, u_int8_t *d)
  64 {
  65         camellia_ctx *ctx;
  66
  67         ctx = (camellia_ctx *)sav->sched;
  68         camellia_decrypt(ctx, s, d);
  69         return 0;
  70 }
  71
  72 int
  73 esp_camellia_blockencrypt(const struct esp_algorithm *algo, struct secasvar *sav,
  74                         u_int8_t *s, u_int8_t *d)
  75 {
  76         camellia_ctx *ctx;
  77
  78         ctx = (camellia_ctx *)sav->sched;
  79         camellia_encrypt(ctx, s, d);
  80         return 0;
  81 }