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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;
if (cm->op_handlers == 0)
return 0;
cm->crypto_engine_index =
vnet_crypto_register_engine (vm, "native", 100,
"Native ISA Optimized Crypto");
crypto_native_op_handler_t *oh = cm->op_handlers;
crypto_native_key_handler_t *kh = cm->key_handlers;
crypto_native_op_handler_t **best_by_op_id = 0;
crypto_native_key_handler_t **best_by_alg_id = 0;
while (oh)
{
vec_validate (best_by_op_id, oh->op_id);
if (best_by_op_id[oh->op_id] == 0 ||
best_by_op_id[oh->op_id]->priority < oh->priority)
best_by_op_id[oh->op_id] = oh;
oh = oh->next;
}
while (kh)
{
vec_validate (best_by_alg_id, kh->alg_id);
if (best_by_alg_id[kh->alg_id] == 0 ||
best_by_alg_id[kh->alg_id]->priority < kh->priority)
best_by_alg_id[kh->alg_id] = kh;
kh = kh->next;
}
vec_foreach_pointer (oh, best_by_op_id)
if (oh)
vnet_crypto_register_ops_handlers (vm, cm->crypto_engine_index,
oh->op_id, oh->fn, oh->cfn);
vec_foreach_pointer (kh, best_by_alg_id)
if (kh)
cm->key_fn[kh->alg_id] = kh->key_fn;
vec_free (best_by_op_id);
vec_free (best_by_alg_id);
vnet_crypto_register_key_handler (vm, cm->crypto_engine_index,
crypto_native_key_handler);
return 0;
}
VLIB_INIT_FUNCTION (crypto_native_init) =
{
.runs_after = VLIB_INITS ("vnet_crypto_init"),
};
#include <vpp/app/version.h>
VLIB_PLUGIN_REGISTER () = {
.version = VPP_BUILD_VER,
.description = "Native Crypto Engine",
};
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