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