bsd/nfs/gss/ccrypto.c

   1 /*
   2  * Copyright (c) 2012 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 #include <libkern/crypto/crypto_internal.h>
  30 #include <corecrypto/ccaes.h>
  31 #include <corecrypto/ccdes.h>
  32 #include <corecrypto/ccpad.h>
  33 #include <corecrypto/ccsha1.h>
  34 #include <sys/malloc.h>
  35
  36 int corecrypto_available(void);
  37
  38 int
  39 corecrypto_available(void)
  40 {
  41         return (g_crypto_funcs ? 1 : 0);
  42 }
  43
  44 const struct ccmode_cbc  *
  45 ccaes_cbc_decrypt_mode(void)
  46 {
  47         if (g_crypto_funcs)
  48                 return (g_crypto_funcs->ccaes_cbc_decrypt);
  49         return (NULL);
  50 }
  51
  52 const struct ccmode_cbc  *
  53 ccaes_cbc_encrypt_mode(void)
  54 {
  55         if (g_crypto_funcs)
  56                 return (g_crypto_funcs->ccaes_cbc_encrypt);
  57         return (NULL);
  58 }
  59
  60 const struct ccmode_cbc  *
  61 ccdes3_cbc_decrypt_mode(void)
  62 {
  63         if (g_crypto_funcs)
  64                 return (g_crypto_funcs->cctdes_cbc_decrypt);
  65         return (NULL);
  66 }
  67
  68 const struct ccmode_cbc *
  69 ccdes3_cbc_encrypt_mode(void)
  70 {
  71         if (g_crypto_funcs)
  72                 return (g_crypto_funcs->cctdes_cbc_encrypt);
  73         return (NULL);
  74 }
  75
  76 size_t
  77 ccpad_cts3_decrypt(const struct ccmode_cbc *cbc, cccbc_ctx *cbc_key,
  78                    cccbc_iv *iv, size_t nbytes, const void *in, void *out)
  79 {
  80         if (g_crypto_funcs)
  81                 return (*g_crypto_funcs->ccpad_cts3_decrypt_fn)(cbc, cbc_key, iv, nbytes, in, out);
  82         return (0);
  83 }
  84
  85 size_t
  86 ccpad_cts3_encrypt(const struct ccmode_cbc *cbc, cccbc_ctx *cbc_key,
  87                    cccbc_iv *iv, size_t nbytes, const void *in, void *out)
  88 {
  89         if (g_crypto_funcs)
  90                 return (*g_crypto_funcs->ccpad_cts3_encrypt_fn)(cbc, cbc_key, iv, nbytes, in, out);
  91         return (0);
  92 }
  93
  94 const struct ccdigest_info *ccsha1_ltc_di_ptr;
  95
  96 const struct ccdigest_info *
  97 ccsha1_di(void)
  98 {
  99         if (g_crypto_funcs)
 100                 return (g_crypto_funcs->ccsha1_di);
 101         return (NULL);
 102 }
 103
 104 void ccdes_key_set_odd_parity(void *key, unsigned long length)
 105 {
 106         if (g_crypto_funcs)
 107                 (*g_crypto_funcs->ccdes_key_set_odd_parity_fn)(key, length);
 108 }