src/libstrongswan/plugins/aesni/aesni_plugin.c

   1 /*
   2  * Copyright (C) 2015 Martin Willi
   3  * Copyright (C) 2015 revosec AG
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License as published by the
   7  * Free Software Foundation; either version 2 of the License, or (at your
   8  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  12  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * for more details.
  14  */
  15
  16 #include "aesni_plugin.h"
  17 #include "aesni_cbc.h"
  18 #include "aesni_ctr.h"
  19 #include "aesni_ccm.h"
  20 #include "aesni_xcbc.h"
  21 #include "aesni_cmac.h"
  22
  23 #include <stdio.h>
  24
  25 #include <library.h>
  26 #include <utils/debug.h>
  27 #include <utils/cpu_feature.h>
  28
  29 typedef struct private_aesni_plugin_t private_aesni_plugin_t;
  30 typedef enum cpuid_feature_t cpuid_feature_t;
  31
  32 /**
  33  * private data of aesni_plugin
  34  */
  35 struct private_aesni_plugin_t {
  36
  37         /**
  38          * public functions
  39          */
  40         aesni_plugin_t public;
  41 };
  42
  43 METHOD(plugin_t, get_name, char*,
  44         private_aesni_plugin_t *this)
  45 {
  46         return "aesni";
  47 }
  48
  49 METHOD(plugin_t, get_features, int,
  50         private_aesni_plugin_t *this, plugin_feature_t *features[])
  51 {
  52         static plugin_feature_t f[] = {
  53                 PLUGIN_REGISTER(CRYPTER, aesni_cbc_create),
  54                         PLUGIN_PROVIDE(CRYPTER, ENCR_AES_CBC, 16),
  55                         PLUGIN_PROVIDE(CRYPTER, ENCR_AES_CBC, 24),
  56                         PLUGIN_PROVIDE(CRYPTER, ENCR_AES_CBC, 32),
  57                 PLUGIN_REGISTER(CRYPTER, aesni_ctr_create),
  58                         PLUGIN_PROVIDE(CRYPTER, ENCR_AES_CTR, 16),
  59                         PLUGIN_PROVIDE(CRYPTER, ENCR_AES_CTR, 24),
  60                         PLUGIN_PROVIDE(CRYPTER, ENCR_AES_CTR, 32),
  61                 PLUGIN_REGISTER(AEAD, aesni_ccm_create),
  62                         PLUGIN_PROVIDE(AEAD, ENCR_AES_CCM_ICV8,  16),
  63                         PLUGIN_PROVIDE(AEAD, ENCR_AES_CCM_ICV12, 16),
  64                         PLUGIN_PROVIDE(AEAD, ENCR_AES_CCM_ICV16, 16),
  65                         PLUGIN_PROVIDE(AEAD, ENCR_AES_CCM_ICV8,  24),
  66                         PLUGIN_PROVIDE(AEAD, ENCR_AES_CCM_ICV12, 24),
  67                         PLUGIN_PROVIDE(AEAD, ENCR_AES_CCM_ICV16, 24),
  68                         PLUGIN_PROVIDE(AEAD, ENCR_AES_CCM_ICV8,  32),
  69                         PLUGIN_PROVIDE(AEAD, ENCR_AES_CCM_ICV12, 32),
  70                         PLUGIN_PROVIDE(AEAD, ENCR_AES_CCM_ICV16, 32),
  71                 PLUGIN_REGISTER(PRF, aesni_xcbc_prf_create),
  72                         PLUGIN_PROVIDE(PRF, PRF_AES128_XCBC),
  73                 PLUGIN_REGISTER(SIGNER, aesni_xcbc_signer_create),
  74                         PLUGIN_PROVIDE(SIGNER, AUTH_AES_XCBC_96),
  75                 PLUGIN_REGISTER(PRF, aesni_cmac_prf_create),
  76                         PLUGIN_PROVIDE(PRF, PRF_AES128_CMAC),
  77                 PLUGIN_REGISTER(SIGNER, aesni_cmac_signer_create),
  78                         PLUGIN_PROVIDE(SIGNER, AUTH_AES_CMAC_96),
  79         };
  80
  81         *features = f;
  82         if (cpu_feature_available(CPU_FEATURE_AESNI))
  83         {
  84                 return countof(f);
  85         }
  86         return 0;
  87 }
  88
  89 METHOD(plugin_t, destroy, void,
  90         private_aesni_plugin_t *this)
  91 {
  92         free(this);
  93 }
  94
  95 /*
  96  * see header file
  97  */
  98 plugin_t *aesni_plugin_create()
  99 {
 100         private_aesni_plugin_t *this;
 101
 102         INIT(this,
 103                 .public = {
 104                         .plugin = {
 105                                 .get_name = _get_name,
 106                                 .get_features = _get_features,
 107                                 .reload = (void*)return_false,
 108                                 .destroy = _destroy,
 109                         },
 110                 },
 111         );
 112
 113         return &this->public.plugin;
 114 }