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/*
* Copyright 2020 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_headless"
#include <bluetooth/log.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <unistd.h>
#include <iostream>
#include <unordered_map>
#include "test/headless/adapter/adapter.h"
#include "test/headless/connect/connect.h"
#include "test/headless/discovery/discovery.h"
#include "test/headless/dumpsys/dumpsys.h"
#include "test/headless/get_options.h"
#include "test/headless/headless.h"
#include "test/headless/log.h"
#include "test/headless/mode/mode.h"
#include "test/headless/nop/nop.h"
#include "test/headless/pairing/pairing.h"
#include "test/headless/read/read.h"
#include "test/headless/scan/scan.h"
#include "test/headless/sdp/sdp.h"
#include "test/headless/util.h"
using namespace bluetooth::test::headless;
using namespace bluetooth;
int console_fd = -1;
namespace {
constexpr char kRedirectedStderrFilename[] = "/dev/null";
FILE* redirected_stderr_{nullptr};
// Ok...so if `stderr` stream is closed, the Android logging system will find
// another stream to write `LOG(<LogLevel>)` messages...any...stream.
// Unfortunately the next stream/fd is the bluetooth snooplog output
// file, so then a btsnoop_hci.log will interleave both raw hci packet
// data and Android LOG files preventing proper capture of hci traffic.
// To mitigate this, the `stderr` stream is redirected to another user
// provided stream, may be `/dev/null`, may be any file if so desired.
// This keeps everybody happy.
void start_trick_the_android_logging_subsystem() {
redirected_stderr_ = freopen(kRedirectedStderrFilename, "w", stderr);
log::assert_that(redirected_stderr_ != nullptr, "Unable to open redirected stderr file");
}
void stop_trick_the_android_logging_subsystem() {
log::assert_that(redirected_stderr_ != nullptr, "assert failed: redirected_stderr_ != nullptr");
fclose(redirected_stderr_);
redirected_stderr_ = nullptr;
}
void clear_logcat() {
int pid;
if ((pid = fork())) {
// parent process
int status;
waitpid(pid, &status, 0); // wait for the child to exit
log::assert_that(WIFEXITED(status), "Unable to clear logcat");
} else {
// child process
const char exec[] = "/system/bin/logcat";
const char arg0[] = "-c";
execl(exec, exec, arg0, NULL);
log::fatal("Should not return from exec process");
}
}
class Main : public HeadlessTest<int> {
public:
Main(const bluetooth::test::headless::GetOpt& options) : HeadlessTest<int>(options) {
test_nodes_.emplace("adapter", std::make_unique<bluetooth::test::headless::Adapter>(options));
test_nodes_.emplace("dumpsys", std::make_unique<bluetooth::test::headless::Dumpsys>(options));
test_nodes_.emplace("connect", std::make_unique<bluetooth::test::headless::Connect>(options));
test_nodes_.emplace("mode", std::make_unique<bluetooth::test::headless::Mode>(options));
test_nodes_.emplace("nop", std::make_unique<bluetooth::test::headless::Nop>(options));
test_nodes_.emplace("pairing", std::make_unique<bluetooth::test::headless::Pairing>(options));
test_nodes_.emplace("read", std::make_unique<bluetooth::test::headless::Read>(options));
test_nodes_.emplace("scan", std::make_unique<bluetooth::test::headless::Scan>(options));
test_nodes_.emplace("sdp", std::make_unique<bluetooth::test::headless::Sdp>(options));
test_nodes_.emplace("discovery",
std::make_unique<bluetooth::test::headless::Discovery>(options));
}
int Run() override {
console_fd = fcntl(STDERR_FILENO, F_DUPFD_CLOEXEC, STDERR_FILENO);
log::assert_that(console_fd != -1, "assert failed: console_fd != -1");
if (options_.close_stderr_) {
fclose(stderr);
}
if (options_.clear_logcat_) {
clear_logcat();
}
start_trick_the_android_logging_subsystem();
if (is_android_running()) {
LOG_CONSOLE("Android must be shutdown for binary to run");
LOG_CONSOLE(" /system/bin/stop");
return -1;
}
LOG_CONSOLE("bt_headless version:\'%s\'", build_id().c_str());
int rc = HeadlessTest<int>::Run();
stop_trick_the_android_logging_subsystem();
return rc;
}
};
} // namespace
int main(int argc, char** argv) {
fflush(nullptr);
setvbuf(stdout, nullptr, _IOLBF, 0);
bluetooth::test::headless::GetOpt options(argc, argv);
if (!options.IsValid()) {
return -1;
}
Main main(options);
return main.Run();
}
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