| /* |
| * Copyright (C) 2022 The Android Open Source Project |
| * |
| * 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. |
| */ |
| |
| #if defined(TRUSTY_USERSPACE) |
| #include <openssl/rand.h> |
| #include <trusty_ipc.h> |
| #else |
| #include <lib/rand/rand.h> |
| #endif |
| |
| #include <binder/RpcTransportTipcTrusty.h> |
| |
| #include "../OS.h" |
| #include "TrustyStatus.h" |
| |
| using android::base::Result; |
| |
| namespace android { |
| |
| Result<void> setNonBlocking(android::base::borrowed_fd /*fd*/) { |
| // Trusty IPC syscalls are all non-blocking by default. |
| return {}; |
| } |
| |
| status_t getRandomBytes(uint8_t* data, size_t size) { |
| #if defined(TRUSTY_USERSPACE) |
| int res = RAND_bytes(data, size); |
| return res == 1 ? OK : UNKNOWN_ERROR; |
| #else |
| int res = rand_get_bytes(data, size); |
| return res == 0 ? OK : UNKNOWN_ERROR; |
| #endif // TRUSTY_USERSPACE |
| } |
| |
| status_t dupFileDescriptor(int oldFd, int* newFd) { |
| int res = dup(oldFd); |
| if (res < 0) { |
| return statusFromTrusty(res); |
| } |
| |
| *newFd = res; |
| return OK; |
| } |
| |
| std::unique_ptr<RpcTransportCtxFactory> makeDefaultRpcTransportCtxFactory() { |
| return RpcTransportCtxFactoryTipcTrusty::make(); |
| } |
| |
| ssize_t sendMessageOnSocket( |
| const RpcTransportFd& /* socket */, iovec* /* iovs */, int /* niovs */, |
| const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* /* ancillaryFds */) { |
| errno = ENOTSUP; |
| return -1; |
| } |
| |
| ssize_t receiveMessageFromSocket( |
| const RpcTransportFd& /* socket */, iovec* /* iovs */, int /* niovs */, |
| std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* /* ancillaryFds */) { |
| errno = ENOTSUP; |
| return -1; |
| } |
| |
| } // namespace android |