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/*
* Copyright (C) 2017 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.
*/
#define LOG_TAG "incident_helper"
#include <android/util/ProtoOutputStream.h>
#include "frameworks/base/core/proto/android/os/system_properties.proto.h"
#include "ih_util.h"
#include "SystemPropertiesParser.h"
using namespace android::os;
const string LINE_DELIMITER = "]: [";
// system properties' names sometimes are not valid proto field names, make the names valid.
static string convertToFieldName(const string& name) {
int len = (int)name.length();
char cstr[len + 1];
strcpy(cstr, name.c_str());
for (int i = 0; i < len; i++) {
if (!isValidChar(cstr[i])) {
cstr[i] = '_';
}
}
return string(cstr);
}
status_t
SystemPropertiesParser::Parse(const int in, const int out) const
{
Reader reader(in);
string line;
string name; // the name of the property
string value; // the string value of the property
ProtoOutputStream proto;
vector<pair<string, string>> extras;
Table sysPropTable(SystemPropertiesProto::_FIELD_NAMES,
SystemPropertiesProto::_FIELD_IDS,
SystemPropertiesProto::_FIELD_COUNT);
Message sysProp(&sysPropTable);
Table aacDrcTable(SystemPropertiesProto::AacDrc::_FIELD_NAMES,
SystemPropertiesProto::AacDrc::_FIELD_IDS,
SystemPropertiesProto::AacDrc::_FIELD_COUNT);
Message aacDrc(&aacDrcTable);
sysProp.addSubMessage(SystemPropertiesProto::AAC_DRC, &aacDrc);
Table aaudioTable(SystemPropertiesProto::Aaudio::_FIELD_NAMES,
SystemPropertiesProto::Aaudio::_FIELD_IDS,
SystemPropertiesProto::Aaudio::_FIELD_COUNT);
Message aaudio(&aaudioTable);
sysProp.addSubMessage(SystemPropertiesProto::AAUDIO, &aaudio);
Table cameraTable(SystemPropertiesProto::Camera::_FIELD_NAMES,
SystemPropertiesProto::Camera::_FIELD_IDS,
SystemPropertiesProto::Camera::_FIELD_COUNT);
Message camera(&cameraTable);
sysProp.addSubMessage(SystemPropertiesProto::CAMERA, &camera);
Table dalvikVmTable(SystemPropertiesProto::DalvikVm::_FIELD_NAMES,
SystemPropertiesProto::DalvikVm::_FIELD_IDS,
SystemPropertiesProto::DalvikVm::_FIELD_COUNT);
Message dalvikVm(&dalvikVmTable);
sysProp.addSubMessage(SystemPropertiesProto::DALVIK_VM, &dalvikVm);
Table initSvcTable(SystemPropertiesProto::InitSvc::_FIELD_NAMES,
SystemPropertiesProto::InitSvc::_FIELD_IDS,
SystemPropertiesProto::InitSvc::_FIELD_COUNT);
initSvcTable.addEnumNameToValue("running", SystemPropertiesProto::InitSvc::STATUS_RUNNING);
initSvcTable.addEnumNameToValue("stopped", SystemPropertiesProto::InitSvc::STATUS_STOPPED);
Message initSvc(&initSvcTable);
sysProp.addSubMessage(SystemPropertiesProto::INIT_SVC, &initSvc);
Table logTable(SystemPropertiesProto::Log::_FIELD_NAMES,
SystemPropertiesProto::Log::_FIELD_IDS,
SystemPropertiesProto::Log::_FIELD_COUNT);
Message logMsg(&logTable);
sysProp.addSubMessage(SystemPropertiesProto::LOG, &logMsg);
Table persistTable(SystemPropertiesProto::Persist::_FIELD_NAMES,
SystemPropertiesProto::Persist::_FIELD_IDS,
SystemPropertiesProto::Persist::_FIELD_COUNT);
Message persist(&persistTable);
sysProp.addSubMessage(SystemPropertiesProto::PERSIST, &persist);
Table pmDexoptTable(SystemPropertiesProto::PmDexopt::_FIELD_NAMES,
SystemPropertiesProto::PmDexopt::_FIELD_IDS,
SystemPropertiesProto::PmDexopt::_FIELD_COUNT);
Message pmDexopt(&pmDexoptTable);
sysProp.addSubMessage(SystemPropertiesProto::PM_DEXOPT, &pmDexopt);
Table roTable(SystemPropertiesProto::Ro::_FIELD_NAMES,
SystemPropertiesProto::Ro::_FIELD_IDS,
SystemPropertiesProto::Ro::_FIELD_COUNT);
Message ro(&roTable);
Table bootTable(SystemPropertiesProto::Ro::Boot::_FIELD_NAMES,
SystemPropertiesProto::Ro::Boot::_FIELD_IDS,
SystemPropertiesProto::Ro::Boot::_FIELD_COUNT);
Message boot(&bootTable);
ro.addSubMessage(SystemPropertiesProto::Ro::BOOT, &boot);
Table bootimageTable(SystemPropertiesProto::Ro::BootImage::_FIELD_NAMES,
SystemPropertiesProto::Ro::BootImage::_FIELD_IDS,
SystemPropertiesProto::Ro::BootImage::_FIELD_COUNT);
Message bootimage(&bootimageTable);
ro.addSubMessage(SystemPropertiesProto::Ro::BOOTIMAGE, &bootimage);
Table buildTable(SystemPropertiesProto::Ro::Build::_FIELD_NAMES,
SystemPropertiesProto::Ro::Build::_FIELD_IDS,
SystemPropertiesProto::Ro::Build::_FIELD_COUNT);
Message build(&buildTable);
Table versionTable(SystemPropertiesProto::Ro::Build::Version::_FIELD_NAMES,
SystemPropertiesProto::Ro::Build::Version::_FIELD_IDS,
SystemPropertiesProto::Ro::Build::Version::_FIELD_COUNT);
Message version(&versionTable);
build.addSubMessage(SystemPropertiesProto::Ro::Build::VERSION, &version);
ro.addSubMessage(SystemPropertiesProto::Ro::BUILD, &build);
Table configTable(SystemPropertiesProto::Ro::Config::_FIELD_NAMES,
SystemPropertiesProto::Ro::Config::_FIELD_IDS,
SystemPropertiesProto::Ro::Config::_FIELD_COUNT);
Message config(&configTable);
ro.addSubMessage(SystemPropertiesProto::Ro::CONFIG, &config);
Table hardwareTable(SystemPropertiesProto::Ro::Hardware::_FIELD_NAMES,
SystemPropertiesProto::Ro::Hardware::_FIELD_IDS,
SystemPropertiesProto::Ro::Hardware::_FIELD_COUNT);
Message hardware(&hardwareTable);
ro.addSubMessage(SystemPropertiesProto::Ro::HARDWARE, &hardware);
Table productTable(SystemPropertiesProto::Ro::Product::_FIELD_NAMES,
SystemPropertiesProto::Ro::Product::_FIELD_IDS,
SystemPropertiesProto::Ro::Product::_FIELD_COUNT);
Message product(&productTable);
Table pVendorTable(SystemPropertiesProto::Ro::Product::Vendor::_FIELD_NAMES,
SystemPropertiesProto::Ro::Product::Vendor::_FIELD_IDS,
SystemPropertiesProto::Ro::Product::Vendor::_FIELD_COUNT);
Message pVendor(&pVendorTable);
product.addSubMessage(SystemPropertiesProto::Ro::Product::VENDOR, &pVendor);
ro.addSubMessage(SystemPropertiesProto::Ro::PRODUCT, &product);
Table telephonyTable(SystemPropertiesProto::Ro::Telephony::_FIELD_NAMES,
SystemPropertiesProto::Ro::Telephony::_FIELD_IDS,
SystemPropertiesProto::Ro::Telephony::_FIELD_COUNT);
Message telephony(&telephonyTable);
ro.addSubMessage(SystemPropertiesProto::Ro::TELEPHONY, &telephony);
Table vendorTable(SystemPropertiesProto::Ro::Vendor::_FIELD_NAMES,
SystemPropertiesProto::Ro::Vendor::_FIELD_IDS,
SystemPropertiesProto::Ro::Vendor::_FIELD_COUNT);
Message vendor(&vendorTable);
ro.addSubMessage(SystemPropertiesProto::Ro::VENDOR, &vendor);
sysProp.addSubMessage(SystemPropertiesProto::RO, &ro);
Table sysTable(SystemPropertiesProto::Sys::_FIELD_NAMES,
SystemPropertiesProto::Sys::_FIELD_IDS,
SystemPropertiesProto::Sys::_FIELD_COUNT);
Message sys(&sysTable);
Table usbTable(SystemPropertiesProto::Sys::Usb::_FIELD_NAMES,
SystemPropertiesProto::Sys::Usb::_FIELD_IDS,
SystemPropertiesProto::Sys::Usb::_FIELD_COUNT);
Message usb(&usbTable);
sys.addSubMessage(SystemPropertiesProto::Sys::USB, &usb);
sysProp.addSubMessage(SystemPropertiesProto::SYS, &sys);
// parse line by line
while (reader.readLine(&line)) {
if (line.empty()) continue;
line = line.substr(1, line.size() - 2); // trim []
size_t index = line.find(LINE_DELIMITER); // split by "]: ["
if (index == string::npos) {
fprintf(stderr, "Bad Line %s\n", line.c_str());
continue;
}
name = line.substr(0, index);
value = trim(line.substr(index + 4), DEFAULT_WHITESPACE);
if (value.empty()) continue;
// if the property name couldn't be found in proto definition or the value has mistype,
// add to extra properties with its name and value
if (!sysProp.insertField(&proto, convertToFieldName(name), value)) {
extras.push_back(make_pair(name, value));
}
}
// end session for the last write.
sysProp.endSession(&proto);
for (auto it = extras.begin(); it != extras.end(); it++) {
long long token = proto.start(SystemPropertiesProto::EXTRA_PROPERTIES);
proto.write(SystemPropertiesProto::Property::NAME, it->first);
proto.write(SystemPropertiesProto::Property::VALUE, it->second);
proto.end(token);
}
if (!reader.ok(&line)) {
fprintf(stderr, "Bad read from fd %d: %s\n", in, line.c_str());
return -1;
}
if (!proto.flush(out)) {
fprintf(stderr, "[%s]Error writing proto back\n", this->name.string());
return -1;
}
fprintf(stderr, "[%s]Proto size: %zu bytes\n", this->name.string(), proto.size());
return NO_ERROR;
}
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