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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.
*/
#include <sys/types.h>
#include <unistd.h>
#include <csignal>
#include <cstring>
#include <memory>
#include <string>
#include <thread>
#include "stack_manager.h"
// clang-format off
#include <client/linux/handler/exception_handler.h>
#include <backtrace/Backtrace.h>
#include <backtrace/backtrace_constants.h>
// clang-format on
#include "common/init_flags.h"
#include "facade/grpc_root_server.h"
#include "hal/hci_hal_host.h"
#include "hal/snoop_logger.h"
#include "os/log.h"
#include "os/parameter_provider.h"
#include "os/system_properties.h"
using ::bluetooth::ModuleList;
using ::bluetooth::StackManager;
using ::bluetooth::hal::HciHalHostRootcanalConfig;
using ::bluetooth::os::Thread;
extern "C" const char* __asan_default_options() {
return "detect_container_overflow=0";
}
namespace {
::bluetooth::facade::GrpcRootServer grpc_root_server;
std::promise<void> interrupt_promise;
std::future<void> interrupt_future;
bool interrupted = false;
struct sigaction old_act = {};
void interrupt_handler(int signal_number) {
if (!interrupted) {
interrupted = true;
LOG_INFO("Stopping gRPC root server due to signal: %s[%d]", strsignal(signal_number), signal_number);
interrupt_promise.set_value();
} else {
LOG_WARN("Already interrupted by signal: %s[%d]", strsignal(signal_number), signal_number);
}
if (old_act.sa_handler != nullptr && old_act.sa_handler != SIG_IGN && old_act.sa_handler != SIG_DFL) {
LOG_INFO("Calling saved signal handler");
old_act.sa_handler(signal_number);
}
}
struct sigaction new_act = {.sa_handler = interrupt_handler};
bool crash_callback(const void* crash_context, size_t crash_context_size, void* context) {
pid_t tid = BACKTRACE_CURRENT_THREAD;
if (crash_context_size >= sizeof(google_breakpad::ExceptionHandler::CrashContext)) {
auto* ctx = static_cast<const google_breakpad::ExceptionHandler::CrashContext*>(crash_context);
tid = ctx->tid;
int signal_number = ctx->siginfo.si_signo;
LOG_ERROR("Process crashed, signal: %s[%d], tid: %d", strsignal(signal_number), signal_number, ctx->tid);
} else {
LOG_ERROR("Process crashed, signal: unknown, tid: unknown");
}
std::unique_ptr<Backtrace> backtrace(Backtrace::Create(BACKTRACE_CURRENT_PROCESS, tid));
if (backtrace == nullptr) {
LOG_ERROR("Failed to create backtrace object");
return false;
}
if (!backtrace->Unwind(0)) {
LOG_ERROR("backtrace->Unwind failed");
return false;
}
LOG_ERROR("Backtrace:");
for (size_t i = 0; i < backtrace->NumFrames(); i++) {
LOG_ERROR("%s", backtrace->FormatFrameData(i).c_str());
}
return true;
}
// Need to stop server on a thread that is not part of a signal handler due to an issue with gRPC
// See: https://github.com/grpc/grpc/issues/24884
void thread_check_shutdown() {
LOG_INFO("shutdown thread waiting for interruption");
interrupt_future.wait();
LOG_INFO("interrupted, stopping server");
grpc_root_server.StopServer();
}
} // namespace
// The entry point for the binary with libbluetooth + facades
int main(int argc, const char** argv) {
google_breakpad::MinidumpDescriptor descriptor(google_breakpad::MinidumpDescriptor::kMicrodumpOnConsole);
google_breakpad::ExceptionHandler eh(descriptor, nullptr, nullptr, nullptr, true, -1);
eh.set_crash_handler(crash_callback);
int root_server_port = 8897;
int grpc_port = 8899;
bluetooth::common::InitFlags::SetAllForTesting();
const std::string arg_grpc_root_server_port = "--root-server-port=";
const std::string arg_grpc_server_port = "--grpc-port=";
const std::string arg_rootcanal_port = "--rootcanal-port=";
const std::string arg_btsnoop_path = "--btsnoop=";
const std::string arg_btsnooz_path = "--btsnooz=";
const std::string arg_btconfig_path = "--btconfig=";
for (int i = 1; i < argc; i++) {
std::string arg = argv[i];
if (arg.find(arg_grpc_root_server_port) == 0) {
auto port_number = arg.substr(arg_grpc_root_server_port.size());
root_server_port = std::stoi(port_number);
}
if (arg.find(arg_grpc_server_port) == 0) {
auto port_number = arg.substr(arg_grpc_server_port.size());
grpc_port = std::stoi(port_number);
}
if (arg.find(arg_rootcanal_port) == 0) {
auto port_number = arg.substr(arg_rootcanal_port.size());
HciHalHostRootcanalConfig::Get()->SetPort(std::stoi(port_number));
}
if (arg.find(arg_btsnoop_path) == 0) {
auto btsnoop_path = arg.substr(arg_btsnoop_path.size());
::bluetooth::os::ParameterProvider::OverrideSnoopLogFilePath(btsnoop_path);
CHECK(::bluetooth::os::SetSystemProperty(
::bluetooth::hal::SnoopLogger::kBtSnoopLogModeProperty, ::bluetooth::hal::SnoopLogger::kBtSnoopLogModeFull));
}
if (arg.find(arg_btsnooz_path) == 0) {
auto btsnooz_path = arg.substr(arg_btsnooz_path.size());
::bluetooth::os::ParameterProvider::OverrideSnoozLogFilePath(btsnooz_path);
}
if (arg.find(arg_btconfig_path) == 0) {
auto btconfig_path = arg.substr(arg_btconfig_path.size());
::bluetooth::os::ParameterProvider::OverrideConfigFilePath(btconfig_path);
}
}
int ret = sigaction(SIGINT, &new_act, &old_act);
if (ret < 0) {
LOG_ERROR("sigaction error: %s", strerror(errno));
}
LOG_INFO("Starting Server");
grpc_root_server.StartServer("0.0.0.0", root_server_port, grpc_port);
LOG_INFO("Server started");
auto wait_thread = std::thread([] { grpc_root_server.RunGrpcLoop(); });
interrupt_future = interrupt_promise.get_future();
auto shutdown_thread = std::thread{thread_check_shutdown};
wait_thread.join();
LOG_INFO("Server terminated");
shutdown_thread.join();
LOG_INFO("Shutdown thread terminated");
return 0;
}
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