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/*
*------------------------------------------------------------------
* Copyright (c) 2019 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*------------------------------------------------------------------
*/
#include <vlib/vlib.h>
#include <vnet/plugin/plugin.h>
#include <vnet/crypto/crypto.h>
#include <crypto_native/crypto_native.h>
crypto_native_main_t crypto_native_main;
static void
crypto_native_key_handler (vlib_main_t * vm, vnet_crypto_key_op_t kop,
vnet_crypto_key_index_t idx)
{
vnet_crypto_key_t *key = vnet_crypto_get_key (idx);
crypto_native_main_t *cm = &crypto_native_main;
/** TODO: add linked alg support **/
if (key->type == VNET_CRYPTO_KEY_TYPE_LINK)
return;
if (cm->key_fn[key->alg] == 0)
return;
if (kop == VNET_CRYPTO_KEY_OP_DEL)
{
if (idx >= vec_len (cm->key_data))
return;
if (cm->key_data[idx] == 0)
return;
clib_mem_free_s (cm->key_data[idx]);
cm->key_data[idx] = 0;
return;
}
vec_validate_aligned (cm->key_data, idx, CLIB_CACHE_LINE_BYTES);
if (kop == VNET_CRYPTO_KEY_OP_MODIFY && cm->key_data[idx])
{
clib_mem_free_s (cm->key_data[idx]);
}
cm->key_data[idx] = cm->key_fn[key->alg] (key);
}
clib_error_t *
crypto_native_init (vlib_main_t * vm)
{
crypto_native_main_t *cm = &crypto_native_main;
clib_error_t *error = 0;
if (clib_cpu_supports_x86_aes () == 0 &&
clib_cpu_supports_aarch64_aes () == 0)
return 0;
cm->crypto_engine_index =
vnet_crypto_register_engine (vm, "native", 100,
"Native ISA Optimized Crypto");
if (0);
#if __x86_64__
else if (crypto_native_aes_cbc_init_icl && clib_cpu_supports_vaes () &&
clib_cpu_supports_avx512f ())
error = crypto_native_aes_cbc_init_icl (vm);
else if (crypto_native_aes_cbc_init_skx && clib_cpu_supports_avx512f ())
error = crypto_native_aes_cbc_init_skx (vm);
else if (crypto_native_aes_cbc_init_hsw && clib_cpu_supports_avx2 ())
error = crypto_native_aes_cbc_init_hsw (vm);
else if (crypto_native_aes_cbc_init_slm)
error = crypto_native_aes_cbc_init_slm (vm);
#endif
#if __aarch64__
else if (crypto_native_aes_cbc_init_neon)
error = crypto_native_aes_cbc_init_neon (vm);
#endif
else
error = clib_error_return (0, "No AES CBC implemenation available");
if (error)
return error;
#if __x86_64__
if (clib_cpu_supports_pclmulqdq ())
{
if (crypto_native_aes_gcm_init_icl && clib_cpu_supports_vaes () &&
clib_cpu_supports_avx512f ())
error = crypto_native_aes_gcm_init_icl (vm);
else if (crypto_native_aes_gcm_init_skx && clib_cpu_supports_avx512f ())
error = crypto_native_aes_gcm_init_skx (vm);
else if (crypto_native_aes_gcm_init_hsw && clib_cpu_supports_avx2 ())
error = crypto_native_aes_gcm_init_hsw (vm);
else if (crypto_native_aes_gcm_init_slm)
error = crypto_native_aes_gcm_init_slm (vm);
else
error = clib_error_return (0, "No AES GCM implemenation available");
if (error)
return error;
}
#endif
#if __aarch64__
if (crypto_native_aes_gcm_init_neon)
error = crypto_native_aes_gcm_init_neon (vm);
else
error = clib_error_return (0, "No AES GCM implemenation available");
if (error)
return error;
#endif
vnet_crypto_register_key_handler (vm, cm->crypto_engine_index,
crypto_native_key_handler);
return 0;
}
/* *INDENT-OFF* */
VLIB_INIT_FUNCTION (crypto_native_init) =
{
.runs_after = VLIB_INITS ("vnet_crypto_init"),
};
/* *INDENT-ON* */
#include <vpp/app/version.h>
/* *INDENT-OFF* */
VLIB_PLUGIN_REGISTER () = {
.version = VPP_BUILD_VER,
.description = "Intel IA32 Software Crypto Engine",
};
/* *INDENT-ON* */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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