| /* |
| * Copyright (C) 2019 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. |
| */ |
| |
| #include "Utils.h" |
| |
| #ifdef __BIONIC__ |
| #include <cutils/properties.h> |
| #endif // __BIONIC__ |
| |
| #include <getopt.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| #include <array> |
| #include <climits> |
| #include <iostream> |
| #include <sstream> |
| |
| using std::cerr; |
| using std::endl; |
| |
| namespace android { |
| namespace hardware { |
| namespace automotive { |
| namespace vehicle { |
| namespace V2_0 { |
| namespace impl { |
| |
| #ifdef __BIONIC__ |
| std::string VirtualizedVhalServerInfo::getServerUri() const { |
| return vsock.str(); |
| } |
| #else |
| std::string VirtualizedVhalServerInfo::getServerUri() const { |
| std::stringstream ss; |
| |
| ss << "vsock:" << vsock.cid << ":" << vsock.port; |
| return ss.str(); |
| } |
| #endif |
| |
| bool WaitForReadWithTimeout(int fd, struct timeval&& timeout) { |
| fd_set read_fd_set; |
| FD_ZERO(&read_fd_set); |
| FD_SET(fd, &read_fd_set); |
| auto ready = select(FD_SETSIZE, &read_fd_set, nullptr, nullptr, &timeout); |
| |
| if (ready < 0) { |
| cerr << __func__ << ": fd: " << fd << ", errno: " << errno << ", " << strerror(errno) |
| << endl; |
| return false; |
| } |
| return ready > 0; |
| } |
| |
| static std::optional<unsigned> parseUnsignedIntFromString(const char* optarg, const char* name) { |
| auto v = strtoul(optarg, nullptr, 0); |
| if (((v == ULONG_MAX) && (errno == ERANGE)) || (v > UINT_MAX)) { |
| cerr << name << " value is out of range: " << optarg << endl; |
| } else if (v != 0) { |
| return v; |
| } else { |
| cerr << name << " value is invalid or missing: " << optarg << endl; |
| } |
| |
| return std::nullopt; |
| } |
| |
| std::optional<VirtualizedVhalServerInfo> VirtualizedVhalServerInfo::fromCommandLine( |
| int argc, char* argv[], std::string* error) { |
| // TODO(egranata): move command-line parsing into vsockinfo |
| std::optional<unsigned int> cid; |
| std::optional<unsigned int> port; |
| std::optional<std::string> powerStateMarkerFilePath; |
| std::optional<std::string> powerStateSocketPath; |
| |
| // unique values to identify the options |
| constexpr int OPT_VHAL_SERVER_CID = 1001; |
| constexpr int OPT_VHAL_SERVER_PORT_NUMBER = 1002; |
| constexpr int OPT_VHAL_SERVER_POWER_STATE_FILE = 1003; |
| constexpr int OPT_VHAL_SERVER_POWER_STATE_SOCKET = 1004; |
| |
| struct option longOptions[] = { |
| {"server_cid", 1, 0, OPT_VHAL_SERVER_CID}, |
| {"server_port", 1, 0, OPT_VHAL_SERVER_PORT_NUMBER}, |
| {"power_state_file", 1, 0, OPT_VHAL_SERVER_POWER_STATE_FILE}, |
| {"power_state_socket", 1, 0, OPT_VHAL_SERVER_POWER_STATE_SOCKET}, |
| {}, |
| }; |
| |
| int optValue; |
| while ((optValue = getopt_long_only(argc, argv, ":", longOptions, 0)) != -1) { |
| switch (optValue) { |
| case OPT_VHAL_SERVER_CID: |
| cid = parseUnsignedIntFromString(optarg, "cid"); |
| break; |
| case OPT_VHAL_SERVER_PORT_NUMBER: |
| port = parseUnsignedIntFromString(optarg, "port"); |
| break; |
| case OPT_VHAL_SERVER_POWER_STATE_FILE: |
| powerStateMarkerFilePath = std::string(optarg); |
| break; |
| case OPT_VHAL_SERVER_POWER_STATE_SOCKET: |
| powerStateSocketPath = std::string(optarg); |
| break; |
| default: |
| // ignore other options |
| break; |
| } |
| } |
| |
| if (!cid.has_value() && error) { |
| *error += "Missing server CID. "; |
| } |
| if (!port.has_value() && error) { |
| *error += "Missing server port number. "; |
| } |
| if (!powerStateMarkerFilePath.has_value() && error) { |
| *error += "Missing power state marker file path. "; |
| } |
| if (!powerStateSocketPath.has_value() && error) { |
| *error += "Missing power state socket path. "; |
| } |
| |
| if (cid && port && powerStateMarkerFilePath && powerStateSocketPath) { |
| return VirtualizedVhalServerInfo{ |
| {*cid, *port}, *powerStateMarkerFilePath, *powerStateSocketPath}; |
| } |
| return std::nullopt; |
| } |
| |
| #ifdef __BIONIC__ |
| std::optional<VirtualizedVhalServerInfo> VirtualizedVhalServerInfo::fromRoPropertyStore() { |
| auto vsock = android::hardware::automotive::utils::VsockConnectionInfo::fromRoPropertyStore( |
| { |
| "ro.boot.vendor.vehiclehal.server.cid", |
| "ro.vendor.vehiclehal.server.cid", |
| }, |
| { |
| "ro.boot.vendor.vehiclehal.server.port", |
| "ro.vendor.vehiclehal.server.port", |
| }); |
| |
| if (vsock) { |
| return VirtualizedVhalServerInfo{*vsock, "", ""}; |
| } |
| return std::nullopt; |
| } |
| #endif // __BIONIC__ |
| |
| } // namespace impl |
| } // namespace V2_0 |
| } // namespace vehicle |
| } // namespace automotive |
| } // namespace hardware |
| } // namespace android |