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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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73 lines
2.2 KiB
73 lines
2.2 KiB
/* |
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* |
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* Copyright 2020 gRPC authors. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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* |
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*/ |
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// This is a sample openSSL engine which tests the openSSL |
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// engine plugability with gRPC. |
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// This sample engine expects KeyId to be actual PEM encoded |
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// key itself and just calls standard openSSL functions. |
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#include <openssl/bio.h> |
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#include <openssl/engine.h> |
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#include <openssl/pem.h> |
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#ifndef OPENSSL_IS_BORINGSSL |
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#include <stdio.h> |
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#include <string.h> |
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extern "C" { |
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static const char engine_id[] = "libengine_passthrough"; |
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static const char engine_name[] = "A passthrough engine for private keys"; |
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static int e_passthrough_idx = -1; |
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static int e_passthrough_init(ENGINE* e) { |
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if (e_passthrough_idx < 0) { |
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e_passthrough_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0); |
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if (e_passthrough_idx < 0) return 0; |
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} |
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return 1; |
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} |
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EVP_PKEY* e_passthrough_load_privkey(ENGINE* eng, const char* key_id, |
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UI_METHOD* ui_method, |
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void* callback_data) { |
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EVP_PKEY* pkey = NULL; |
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BIO* pem = BIO_new_mem_buf((void*)key_id, (int)(strlen(key_id))); |
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if (pem == NULL) return NULL; |
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pkey = PEM_read_bio_PrivateKey(pem, NULL, NULL, (void*)""); |
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BIO_free(pem); |
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return pkey; |
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} |
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int passthrough_bind_helper(ENGINE* e, const char* id) { |
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if (id && strcmp(id, engine_id)) { |
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return 0; |
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} |
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if (!ENGINE_set_id(e, engine_id) || !ENGINE_set_name(e, engine_name) || |
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!ENGINE_set_flags(e, ENGINE_FLAGS_NO_REGISTER_ALL) || |
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!ENGINE_set_init_function(e, e_passthrough_init) || |
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!ENGINE_set_load_privkey_function(e, e_passthrough_load_privkey)) { |
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return 0; |
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} |
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return 1; |
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} |
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IMPLEMENT_DYNAMIC_BIND_FN(passthrough_bind_helper) |
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IMPLEMENT_DYNAMIC_CHECK_FN() |
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} |
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#endif // OPENSSL_IS_BORINGSSL
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