1 /* 2 * Copyright (C) 2021 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #include <openssl/ssl.h> 20 #include <utils/Errors.h> 21 22 namespace android { 23 24 // An interface with a function that configures the SSL_CTX object with authentication information, 25 // including certificates and private keys. 26 class RpcAuth { 27 public: 28 virtual ~RpcAuth() = default; 29 30 // The keys and certificates to provide is up to the implementation. Multiple calls to 31 // |configure()| may configure |ctx| with the same keys / certificates, or generate a 32 // different key / certificate every time |configure()| is called. 33 // 34 // It is guaranteed that, when a context object (RpcTransportCtx) is created, 35 // libbinder_tls calls |configure()| on server RpcAuth exactly once. 36 // 37 // The implementation may use the following function to set the private 38 // keys and certificates: 39 // - SSL_CTX_use_PrivateKey 40 // - SSL_CTX_use_certificate 41 // - SSL_CTX_set*_chain 42 // - SSL_CTX_add0_chain_cert 43 [[nodiscard]] virtual status_t configure(SSL_CTX* ctx) = 0; 44 }; 45 46 } // namespace android 47