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/*
*
* Copyright 2018 gRPC authors.
*
* 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 <grpc/support/port_platform.h>
#include "src/core/tsi/alts/frame_protector/alts_crypter.h"
#include <string.h>
#include <grpc/support/alloc.h>
static void maybe_copy_error_msg(const char* src, char** dst) {
if (dst != nullptr && src != nullptr) {
*dst = static_cast<char*>(gpr_malloc(strlen(src) + 1));
memcpy(*dst, src, strlen(src) + 1);
}
}
grpc_status_code alts_crypter_process_in_place(
alts_crypter* crypter, unsigned char* data, size_t data_allocated_size,
size_t data_size, size_t* output_size, char** error_details) {
if (crypter != nullptr && crypter->vtable != nullptr &&
crypter->vtable->process_in_place != nullptr) {
return crypter->vtable->process_in_place(crypter, data, data_allocated_size,
data_size, output_size,
error_details);
}
/* An error occurred. */
const char error_msg[] =
"crypter or crypter->vtable has not been initialized properly.";
maybe_copy_error_msg(error_msg, error_details);
return GRPC_STATUS_INVALID_ARGUMENT;
}
size_t alts_crypter_num_overhead_bytes(const alts_crypter* crypter) {
if (crypter != nullptr && crypter->vtable != nullptr &&
crypter->vtable->num_overhead_bytes != nullptr) {
return crypter->vtable->num_overhead_bytes(crypter);
}
/* An error occurred. */
return 0;
}
void alts_crypter_destroy(alts_crypter* crypter) {
if (crypter != nullptr) {
if (crypter->vtable != nullptr && crypter->vtable->destruct != nullptr) {
crypter->vtable->destruct(crypter);
}
gpr_free(crypter);
}
}
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