| /* |
| * |
| * 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); |
| } |
| } |