1 /*
2 * Copyright (C) 2023 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 #include "DefaultVehicleHal.h"
18 #include "GRPCVehicleHardware.h"
19 #include "vsockinfo.h"
20
21 #include <android-base/logging.h>
22 #include <android/binder_manager.h>
23 #include <android/binder_process.h>
24 #include <cutils/properties.h>
25 #include <linux/vm_sockets.h>
26 #include <sys/socket.h>
27
28 #include <chrono>
29 #include <memory>
30 #include <utility>
31
32 using ::android::hardware::automotive::utils::VsockConnectionInfo;
33 using ::android::hardware::automotive::vehicle::DefaultVehicleHal;
34 using ::android::hardware::automotive::vehicle::virtualization::
35 GRPCVehicleHardware;
36
37 const char* kServiceName =
38 "android.hardware.automotive.vehicle.IVehicle/default";
39 const char* kBootConfigPort = "ro.boot.vhal_proxy_server_port";
40 const char* kAutoEthNamespaceSetupProp =
41 "android.car.auto_eth_namespace_setup_complete";
42 const char* kVsockServiceName = "vendor.vehicle-cf-vsock";
43 const char* kEthServerAddr = "192.168.98.1";
44
main(int argc,char * argv[])45 int main(int argc, char* argv[]) {
46 bool useVsock = false;
47
48 if (argc > 1 && strcmp(argv[1], "vsock") == 0) {
49 if (property_get_bool(kAutoEthNamespaceSetupProp, false)) {
50 LOG(INFO) << "Skip starting VHAL in vsock mode since ethernet is enabled";
51 return 0;
52 }
53
54 // If we are not exiting intentionally, we need to turn off oneshot so that
55 // VHAL will be restarted in case it exits. vendor.vehicle-cf-eth does not
56 // have oneshot in the rc file so nothing to do here.
57 property_set("ctl.oneshot_off", kVsockServiceName);
58 useVsock = true;
59 }
60
61 LOG(INFO) << "Starting thread pool...";
62 if (!ABinderProcess_setThreadPoolMaxThreadCount(4)) {
63 LOG(ERROR) << "Failed to set thread pool max thread count.";
64 return 1;
65 }
66 ABinderProcess_startThreadPool();
67
68 unsigned int port =
69 static_cast<unsigned int>(property_get_int32(kBootConfigPort, -1));
70 CHECK(port >= 0) << "Failed to read port number from: " << kBootConfigPort;
71
72 std::string serverAddr;
73 if (useVsock) {
74 VsockConnectionInfo vsock = {
75 .cid = VMADDR_CID_HOST,
76 .port = port,
77 };
78 serverAddr = vsock.str();
79 LOG(INFO) << "Connecting to vsock server at " << serverAddr;
80 } else {
81 serverAddr = fmt::format("{}:{}", kEthServerAddr, port);
82 LOG(INFO) << "Connecting to ethernet server at " << serverAddr;
83 }
84
85 constexpr auto maxConnectWaitTime = std::chrono::seconds(5);
86 auto hardware = std::make_unique<GRPCVehicleHardware>(serverAddr);
87 if (const auto connected = hardware->waitForConnected(maxConnectWaitTime)) {
88 LOG(INFO) << "Connected to GRPC server at " << serverAddr;
89 } else {
90 LOG(INFO)
91 << "Failed to connect to GRPC server at " << serverAddr
92 << ", check if it is working, or maybe the server is coming up late.";
93 return 1;
94 }
95
96 auto vhal =
97 ::ndk::SharedRefBase::make<DefaultVehicleHal>(std::move(hardware));
98 LOG(INFO) << "Registering as service...";
99 binder_exception_t err =
100 AServiceManager_addService(vhal->asBinder().get(), kServiceName);
101 CHECK(err == EX_NONE) << "Failed to register " << kServiceName
102 << " service, exception: " << err << ".";
103
104 LOG(INFO) << "Vehicle Service Ready.";
105
106 ABinderProcess_joinThreadPool();
107
108 LOG(INFO) << "Vehicle Service Exiting, must not happen!.";
109
110 return 0;
111 }
112