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/*
* Copyright 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.
*/
#define LOG_TAG "bt_gd_shim"
#include "dumpsys/dumpsys.h"
#include <future>
#include <string>
#include "dumpsys/filter.h"
#include "module.h"
#include "os/log.h"
#include "os/system_properties.h"
#include "shim/dumpsys.h"
#include "shim/dumpsys_args.h"
namespace bluetooth {
namespace shim {
static const std::string kReadOnlyDebuggableProperty = "ro.debuggable";
namespace {
constexpr char kModuleName[] = "shim::Dumpsys";
constexpr char kDumpsysTitle[] = "----- Gd Dumpsys ------";
} // namespace
struct Dumpsys::impl {
public:
void DumpWithArgsSync(int fd, const char** args, std::promise<void> promise);
int GetNumberOfBundledSchemas() const;
impl(const Dumpsys& dumpsys_module, const dumpsys::ReflectionSchema& reflection_schema);
~impl() = default;
protected:
void FilterAsUser(std::string* dumpsys_data);
void FilterAsDeveloper(std::string* dumpsys_data);
std::string PrintAsJson(std::string* dumpsys_data) const;
bool IsDebuggable() const;
private:
void DumpWithArgsAsync(int fd, const char** args);
const Dumpsys& dumpsys_module_;
const dumpsys::ReflectionSchema reflection_schema_;
};
const ModuleFactory Dumpsys::Factory =
ModuleFactory([]() { return new Dumpsys(bluetooth::dumpsys::GetBundledSchemaData()); });
Dumpsys::impl::impl(const Dumpsys& dumpsys_module, const dumpsys::ReflectionSchema& reflection_schema)
: dumpsys_module_(dumpsys_module), reflection_schema_(std::move(reflection_schema)) {}
int Dumpsys::impl::GetNumberOfBundledSchemas() const {
return reflection_schema_.GetNumberOfBundledSchemas();
}
bool Dumpsys::impl::IsDebuggable() const {
return (os::GetSystemProperty(kReadOnlyDebuggableProperty) == "1");
}
void Dumpsys::impl::FilterAsDeveloper(std::string* dumpsys_data) {
ASSERT(dumpsys_data != nullptr);
dumpsys::FilterInPlace(dumpsys::FilterType::AS_DEVELOPER, reflection_schema_, dumpsys_data);
}
void Dumpsys::impl::FilterAsUser(std::string* dumpsys_data) {
ASSERT(dumpsys_data != nullptr);
dumpsys::FilterInPlace(dumpsys::FilterType::AS_USER, reflection_schema_, dumpsys_data);
}
std::string Dumpsys::impl::PrintAsJson(std::string* dumpsys_data) const {
ASSERT(dumpsys_data != nullptr);
const std::string root_name = reflection_schema_.GetRootName();
if (root_name.empty()) {
char buf[255];
snprintf(buf, sizeof(buf), "ERROR: Unable to find root name in prebundled reflection schema\n");
LOG_WARN("%s", buf);
return std::string(buf);
}
const reflection::Schema* schema = reflection_schema_.FindInReflectionSchema(root_name);
if (schema == nullptr) {
char buf[255];
snprintf(buf, sizeof(buf), "ERROR: Unable to find schema root name:%s\n", root_name.c_str());
LOG_WARN("%s", buf);
return std::string(buf);
}
flatbuffers::Parser parser;
if (!parser.Deserialize(schema)) {
char buf[255];
snprintf(buf, sizeof(buf), "ERROR: Unable to deserialize bundle root name:%s\n", root_name.c_str());
LOG_WARN("%s", buf);
return std::string(buf);
}
std::string jsongen;
flatbuffers::GenerateText(parser, dumpsys_data->data(), &jsongen);
return jsongen;
}
void Dumpsys::impl::DumpWithArgsAsync(int fd, const char** args) {
ParsedDumpsysArgs parsed_dumpsys_args(args);
const auto registry = dumpsys_module_.GetModuleRegistry();
ModuleDumper dumper(*registry, kDumpsysTitle);
std::string dumpsys_data;
dumper.DumpState(&dumpsys_data);
dprintf(fd, " ----- Filtering as Developer -----\n");
FilterAsDeveloper(&dumpsys_data);
dprintf(fd, "%s", PrintAsJson(&dumpsys_data).c_str());
}
void Dumpsys::impl::DumpWithArgsSync(int fd, const char** args, std::promise<void> promise) {
DumpWithArgsAsync(fd, args);
promise.set_value();
}
Dumpsys::Dumpsys(const std::string& pre_bundled_schema)
: reflection_schema_(dumpsys::ReflectionSchema(pre_bundled_schema)) {}
void Dumpsys::Dump(int fd, const char** args) {
if (fd <= 0) {
return;
}
std::promise<void> promise;
auto future = promise.get_future();
CallOn(pimpl_.get(), &Dumpsys::impl::DumpWithArgsSync, fd, args, std::move(promise));
future.get();
}
void Dumpsys::Dump(int fd, const char** args, std::promise<void> promise) {
if (fd <= 0) {
promise.set_value();
return;
}
CallOn(pimpl_.get(), &Dumpsys::impl::DumpWithArgsSync, fd, args, std::move(promise));
}
os::Handler* Dumpsys::GetGdShimHandler() {
return GetHandler();
}
/**
* Module methods
*/
void Dumpsys::ListDependencies(ModuleList* list) const {}
void Dumpsys::Start() {
pimpl_ = std::make_unique<impl>(*this, reflection_schema_);
}
void Dumpsys::Stop() {
pimpl_.reset();
}
DumpsysDataFinisher Dumpsys::GetDumpsysData(flatbuffers::FlatBufferBuilder* fb_builder) const {
auto name = fb_builder->CreateString("----- Shim Dumpsys -----");
DumpsysModuleDataBuilder builder(*fb_builder);
builder.add_title(name);
builder.add_number_of_bundled_schemas(pimpl_->GetNumberOfBundledSchemas());
auto dumpsys_data = builder.Finish();
return [dumpsys_data](DumpsysDataBuilder* builder) { builder->add_shim_dumpsys_data(dumpsys_data); };
}
std::string Dumpsys::ToString() const {
return kModuleName;
}
} // namespace shim
} // namespace bluetooth
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