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src/content/browser/utility_process_host.cc
Kramer Ge 41794268dc [Ozone]Add --render-node-override switch to pick gbm_device 
Allow users to specify which /dev/dri/renderD* to allocate buffers.
E.g. chrome --render-node-override=/dev/dri/renderD128

Bug: 337870536
Change-Id: Ibd08a76e3d9a75818f663f016bd7b0860b3d4f9f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6203742
Commit-Queue: Kramer Ge <fangzhoug@chromium.org>
Reviewed-by: Avi Drissman <avi@chromium.org>
Reviewed-by: Andres Calderon Jaramillo <andrescj@chromium.org>
Reviewed-by: Peter McNeeley <petermcneeley@google.com>
Cr-Commit-Position: refs/heads/main@{#1415765}
2025-02-04 12:37:39 -08:00

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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/utility_process_host.h"
#include <memory>
#include <utility>
#include "base/base_switches.h"
#include "base/command_line.h"
#include "base/containers/span.h"
#include "base/files/file_path.h"
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/i18n/base_i18n_switches.h"
#include "base/logging.h"
#include "base/strings/utf_string_conversions.h"
#include "base/task/sequenced_task_runner.h"
#include "base/threading/thread.h"
#include "build/build_config.h"
#include "components/network_session_configurator/common/network_switches.h"
#include "components/services/storage/public/mojom/storage_service.mojom.h"
#include "content/browser/browser_child_process_host_impl.h"
#include "content/browser/child_process_host_impl.h"
#include "content/browser/gpu/gpu_data_manager_impl.h"
#include "content/browser/renderer_host/render_process_host_impl.h"
#include "content/browser/utility_sandbox_delegate.h"
#include "content/common/features.h"
#include "content/common/in_process_child_thread_params.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/content_browser_client.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/common/content_client.h"
#include "content/public/common/content_descriptor_keys.h"
#include "content/public/common/content_features.h"
#include "content/public/common/content_switches.h"
#include "content/public/common/process_type.h"
#include "content/public/common/sandboxed_process_launcher_delegate.h"
#include "content/public/common/zygote/zygote_buildflags.h"
#include "device/vr/buildflags/buildflags.h"
#include "media/base/media_switches.h"
#include "media/media_buildflags.h"
#include "media/webrtc/webrtc_features.h"
#include "sandbox/policy/mojom/sandbox.mojom.h"
#include "sandbox/policy/sandbox_type.h"
#include "sandbox/policy/switches.h"
#include "services/network/public/cpp/network_switches.h"
#include "services/service_manager/public/cpp/interface_provider.h"
#include "ui/base/ui_base_switches.h"
#include "ui/gl/gl_switches.h"
#if BUILDFLAG(IS_ANDROID)
#include "services/network/public/mojom/network_service.mojom.h"
#endif
#if BUILDFLAG(IS_MAC)
#include "components/os_crypt/sync/os_crypt_switches.h"
#endif
#if BUILDFLAG(IS_OZONE)
#include "ui/ozone/public/ozone_switches.h"
#endif
#if BUILDFLAG(IS_POSIX) && !BUILDFLAG(IS_MAC)
#include "content/browser/v8_snapshot_files.h"
#endif
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
#include "base/files/file_util.h"
#include "base/files/scoped_file.h"
#include "base/pickle.h"
#endif
#if BUILDFLAG(IS_WIN)
#include "components/app_launch_prefetch/app_launch_prefetch.h"
#include "media/capture/capture_switches.h"
#include "services/audio/public/mojom/audio_service.mojom.h"
#include "services/network/public/mojom/network_service.mojom.h"
#endif
#if BUILDFLAG(ENABLE_GPU_CHANNEL_MEDIA_CAPTURE)
#include "base/task/sequenced_task_runner.h"
#include "components/viz/host/gpu_client.h"
#include "media/capture/capture_switches.h"
#include "services/video_capture/public/mojom/video_capture_service.mojom.h"
#endif // BUILDFLAG(ENABLE_GPU_CHANNEL_MEDIA_CAPTURE)
#if BUILDFLAG(ENABLE_VR)
#include "device/vr/public/cpp/switches.h"
#endif
namespace content {
namespace {
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
base::ScopedFD PassNetworkContextParentDirs(
std::vector<base::FilePath> network_context_parent_dirs) {
base::Pickle pickle;
for (const base::FilePath& dir : network_context_parent_dirs) {
pickle.WriteString(dir.value());
}
base::ScopedFD read_fd;
base::ScopedFD write_fd;
if (!base::CreatePipe(&read_fd, &write_fd)) {
PLOG(ERROR) << "Failed to create thepipe necessary to properly sandbox the "
"network service.";
return base::ScopedFD();
}
if (!base::WriteFileDescriptor(write_fd.get(), pickle)) {
PLOG(ERROR) << "Failed to write to the pipe which is necessary to properly "
"sandbox the network service.";
return base::ScopedFD();
}
return read_fd;
}
#endif // BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
#if BUILDFLAG(IS_WIN)
base::CommandLine::StringViewType UtilityToAppLaunchPrefetchArg(
const std::string& utility_type) {
// Set the default prefetch type for utility processes.
app_launch_prefetch::SubprocessType prefetch_type =
app_launch_prefetch::SubprocessType::kUtilityOther;
if (utility_type == network::mojom::NetworkService::Name_) {
prefetch_type = app_launch_prefetch::SubprocessType::kUtilityNetworkService;
} else if (utility_type == storage::mojom::StorageService::Name_) {
prefetch_type = app_launch_prefetch::SubprocessType::kUtilityStorage;
} else if (utility_type == audio::mojom::AudioService::Name_) {
prefetch_type = app_launch_prefetch::SubprocessType::kUtilityAudio;
}
return app_launch_prefetch::GetPrefetchSwitch(prefetch_type);
}
#endif // BUILDFLAG(IS_WIN)
} // namespace
UtilityMainThreadFactoryFunction g_utility_main_thread_factory = nullptr;
void UtilityProcessHost::RegisterUtilityMainThreadFactory(
UtilityMainThreadFactoryFunction create) {
g_utility_main_thread_factory = create;
}
UtilityProcessHost::UtilityProcessHost()
: UtilityProcessHost(nullptr /* client */) {}
UtilityProcessHost::UtilityProcessHost(std::unique_ptr<Client> client)
: sandbox_type_(sandbox::mojom::Sandbox::kUtility),
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
child_flags_(ChildProcessHost::CHILD_ALLOW_SELF),
#else
child_flags_(ChildProcessHost::CHILD_NORMAL),
#endif
started_(false),
name_(u"utility process"),
file_data_(std::make_unique<ChildProcessLauncherFileData>()),
#if BUILDFLAG(ENABLE_GPU_CHANNEL_MEDIA_CAPTURE)
allowed_gpu_(false),
gpu_client_(nullptr, base::OnTaskRunnerDeleter(nullptr)),
#endif // BUILDFLAG(ENABLE_GPU_CHANNEL_MEDIA_CAPTURE)
client_(std::move(client)) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
process_ = std::make_unique<BrowserChildProcessHostImpl>(
PROCESS_TYPE_UTILITY, this, ChildProcessHost::IpcMode::kNormal);
}
UtilityProcessHost::~UtilityProcessHost() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (client_ && launch_state_ == LaunchState::kLaunchComplete)
client_->OnProcessTerminatedNormally();
}
base::WeakPtr<UtilityProcessHost> UtilityProcessHost::AsWeakPtr() {
return weak_ptr_factory_.GetWeakPtr();
}
void UtilityProcessHost::SetSandboxType(sandbox::mojom::Sandbox sandbox_type) {
sandbox_type_ = sandbox_type;
}
const ChildProcessData& UtilityProcessHost::GetData() {
return process_->GetData();
}
#if BUILDFLAG(IS_POSIX)
void UtilityProcessHost::SetEnv(const base::EnvironmentMap& env) {
env_ = env;
}
#endif
bool UtilityProcessHost::Start() {
return StartProcess();
}
void UtilityProcessHost::SetMetricsName(const std::string& metrics_name) {
metrics_name_ = metrics_name;
}
void UtilityProcessHost::SetName(const std::u16string& name) {
name_ = name;
}
void UtilityProcessHost::SetExtraCommandLineSwitches(
std::vector<std::string> switches) {
extra_switches_ = std::move(switches);
}
#if BUILDFLAG(IS_WIN)
void UtilityProcessHost::SetPreloadLibraries(
const std::vector<base::FilePath>& preloads) {
preload_libraries_ = preloads;
}
#endif // BUILDFLAG(IS_WIN)
void UtilityProcessHost::SetAllowGpuClient() {
#if BUILDFLAG(ENABLE_GPU_CHANNEL_MEDIA_CAPTURE)
allowed_gpu_ = true;
#endif // BUILDFLAG(ENABLE_GPU_CHANNEL_MEDIA_CAPTURE)
}
#if BUILDFLAG(IS_POSIX) && !BUILDFLAG(IS_MAC)
void UtilityProcessHost::AddFileToPreload(
std::string key,
absl::variant<base::FilePath, base::ScopedFD> file) {
DCHECK_EQ(file_data_->files_to_preload.count(key), 0u);
file_data_->files_to_preload.insert({std::move(key), std::move(file)});
}
#endif // BUILDFLAG(IS_POSIX) && !BUILDFLAG(IS_MAC)
#if BUILDFLAG(USE_ZYGOTE)
void UtilityProcessHost::SetZygoteForTesting(ZygoteCommunication* handle) {
zygote_for_testing_ = handle;
}
#endif // BUILDFLAG(USE_ZYGOTE)
mojom::ChildProcess* UtilityProcessHost::GetChildProcess() {
return static_cast<ChildProcessHostImpl*>(process_->GetHost())
->child_process();
}
bool UtilityProcessHost::StartProcess() {
if (started_)
return true;
started_ = true;
process_->SetName(name_);
process_->SetMetricsName(metrics_name_);
if (RenderProcessHost::run_renderer_in_process()) {
DCHECK(g_utility_main_thread_factory);
// See comment in RenderProcessHostImpl::Init() for the background on why we
// support single process mode this way.
in_process_thread_.reset(g_utility_main_thread_factory(
InProcessChildThreadParams(GetIOThreadTaskRunner({}),
process_->GetInProcessMojoInvitation())));
in_process_thread_->Start();
} else {
const base::CommandLine& browser_command_line =
*base::CommandLine::ForCurrentProcess();
bool has_cmd_prefix =
browser_command_line.HasSwitch(switches::kUtilityCmdPrefix);
#if BUILDFLAG(IS_ANDROID)
// readlink("/prof/self/exe") sometimes fails on Android at startup.
// As a workaround skip calling it here, since the executable name is
// not needed on Android anyway. See crbug.com/500854.
std::unique_ptr<base::CommandLine> cmd_line =
std::make_unique<base::CommandLine>(base::CommandLine::NO_PROGRAM);
if (metrics_name_ == network::mojom::NetworkService::Name_ &&
base::FeatureList::IsEnabled(features::kWarmUpNetworkProcess)) {
process_->EnableWarmUpConnection();
}
#else // BUILDFLAG(IS_ANDROID)
#if BUILDFLAG(IS_MAC)
if (sandbox_type_ == sandbox::mojom::Sandbox::kServiceWithJit)
DCHECK_EQ(child_flags_, ChildProcessHost::CHILD_RENDERER);
#endif // BUILDFLAG(IS_MAC)
int child_flags = child_flags_;
// When running under gdb, forking /proc/self/exe ends up forking the gdb
// executable instead of Chromium. It is almost safe to assume that no
// updates will happen while a developer is running with
// |switches::kUtilityCmdPrefix|. See ChildProcessHost::GetChildPath() for
// a similar case with Valgrind.
if (has_cmd_prefix)
child_flags = ChildProcessHost::CHILD_NORMAL;
base::FilePath exe_path = ChildProcessHost::GetChildPath(child_flags);
if (exe_path.empty()) {
NOTREACHED() << "Unable to get utility process binary name.";
}
std::unique_ptr<base::CommandLine> cmd_line =
std::make_unique<base::CommandLine>(exe_path);
#endif // BUILDFLAG(IS_ANDROID)
cmd_line->AppendSwitchASCII(switches::kProcessType,
switches::kUtilityProcess);
// Specify the type of utility process for debugging/profiling purposes.
cmd_line->AppendSwitchASCII(switches::kUtilitySubType, metrics_name_);
std::string locale = GetContentClient()->browser()->GetApplicationLocale();
cmd_line->AppendSwitchASCII(switches::kLang, locale);
#if BUILDFLAG(IS_WIN)
cmd_line->AppendArgNative(UtilityToAppLaunchPrefetchArg(metrics_name_));
#endif // BUILDFLAG(IS_WIN)
sandbox::policy::SetCommandLineFlagsForSandboxType(cmd_line.get(),
sandbox_type_);
// Browser command-line switches to propagate to the utility process.
static const char* const kSwitchNames[] = {
network::switches::kAdditionalTrustTokenKeyCommitments,
network::switches::kForceEffectiveConnectionType,
network::switches::kHostResolverRules,
network::switches::kIgnoreCertificateErrorsSPKIList,
network::switches::kTestThirdPartyCookiePhaseout,
network::switches::kDisableSharedDictionaryStorageCleanupForTesting,
sandbox::policy::switches::kNoSandbox,
#if BUILDFLAG(IS_LINUX) && !BUILDFLAG(IS_CHROMEOS)
switches::kDisableDevShmUsage,
#endif
#if BUILDFLAG(IS_MAC)
sandbox::policy::switches::kDisableMetalShaderCache,
sandbox::policy::switches::kEnableSandboxLogging,
#endif
switches::kEnableBackgroundThreadPool,
switches::kEnableExperimentalCookieFeatures,
switches::kForceTextDirection,
switches::kForceUIDirection,
switches::kIgnoreCertificateErrors,
switches::kOverrideUseSoftwareGLForTests,
switches::kOverrideEnabledCdmInterfaceVersion,
switches::kDisableAcceleratedMjpegDecode,
switches::kUseFakeDeviceForMediaStream,
switches::kUseFakeMjpegDecodeAccelerator,
switches::kUseFileForFakeVideoCapture,
switches::kUseMockCertVerifierForTesting,
switches::kMockCertVerifierDefaultResultForTesting,
switches::kUtilityStartupDialog,
switches::kUseANGLE,
switches::kUseGL,
switches::kEnableExperimentalWebPlatformFeatures,
// These flags are used by the audio service:
switches::kAudioBufferSize,
switches::kDisableAudioInput,
switches::kDisableAudioOutput,
switches::kFailAudioStreamCreation,
switches::kMuteAudio,
switches::kUseFileForFakeAudioCapture,
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_FREEBSD) || \
BUILDFLAG(IS_SOLARIS)
switches::kAlsaInputDevice,
switches::kAlsaOutputDevice,
#endif
#if BUILDFLAG(USE_CRAS)
switches::kUseCras,
#endif
#if BUILDFLAG(IS_WIN)
switches::kDisableHighResTimer,
switches::kEnableExclusiveAudio,
switches::kForceWaveAudio,
switches::kRaiseTimerFrequency,
switches::kTrySupportedChannelLayouts,
switches::kWaveOutBuffers,
switches::kWebXrForceRuntime,
sandbox::policy::switches::kAddXrAppContainerCaps,
#endif
#if BUILDFLAG(ENABLE_VR)
device::switches::kWebXrHandAnonymizationStrategy,
#endif
network::switches::kIpAddressSpaceOverrides,
#if BUILDFLAG(IS_CHROMEOS)
switches::kSchedulerBoostUrgent,
#endif
switches::kFakeBackgroundBlurTogglePeriod,
#if BUILDFLAG(USE_CHROMEOS_MEDIA_ACCELERATION)
switches::kHardwareVideoDecodeFrameRate,
#endif
#if BUILDFLAG(IS_OZONE)
switches::kRenderNodeOverride,
#endif
};
cmd_line->CopySwitchesFrom(browser_command_line, kSwitchNames);
network_session_configurator::CopyNetworkSwitches(browser_command_line,
cmd_line.get());
if (has_cmd_prefix) {
// Launch the utility child process with some prefix
// (usually "xterm -e gdb --args").
cmd_line->PrependWrapper(browser_command_line.GetSwitchValueNative(
switches::kUtilityCmdPrefix));
}
for (const auto& extra_switch : extra_switches_)
cmd_line->AppendSwitch(extra_switch);
#if BUILDFLAG(IS_WIN)
if (media::IsMediaFoundationD3D11VideoCaptureEnabled()) {
// MediaFoundationD3D11VideoCapture requires Gpu memory buffers,
// which are unavailable if the GPU process isn't running or if
// D3D shared images are not supported.
if (!GpuDataManagerImpl::GetInstance()->IsGpuCompositingDisabled() &&
GpuDataManagerImpl::GetInstance()->GetGPUInfo().shared_image_d3d) {
cmd_line->AppendSwitch(switches::kVideoCaptureUseGpuMemoryBuffer);
}
}
#endif
#if BUILDFLAG(IS_POSIX) && !BUILDFLAG(IS_MAC)
file_data_->files_to_preload.merge(GetV8SnapshotFilesToPreload(*cmd_line));
#endif // BUILDFLAG(IS_POSIX)
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
// The network service should have access to the parent directories
// necessary for its usage.
if (sandbox_type_ == sandbox::mojom::Sandbox::kNetwork) {
std::vector<base::FilePath> network_context_parent_dirs =
GetContentClient()->browser()->GetNetworkContextsParentDirectory();
file_data_->files_to_preload[kNetworkContextParentDirsDescriptor] =
PassNetworkContextParentDirs(std::move(network_context_parent_dirs));
}
#endif // BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
#if BUILDFLAG(ENABLE_GPU_CHANNEL_MEDIA_CAPTURE) && !BUILDFLAG(IS_WIN)
// Pass `kVideoCaptureUseGpuMemoryBuffer` flag to video capture service only
// when the video capture use GPU memory buffer enabled.
if (metrics_name_ == video_capture::mojom::VideoCaptureService::Name_) {
bool pass_gpu_buffer_flag =
switches::IsVideoCaptureUseGpuMemoryBufferEnabled();
#if BUILDFLAG(IS_LINUX)
// Check if NV12 GPU memory buffer supported at the same time.
pass_gpu_buffer_flag =
pass_gpu_buffer_flag &&
GpuDataManagerImpl::GetInstance()->IsGpuMemoryBufferNV12Supported();
#endif // BUILDFLAG(IS_LINUX)
if (pass_gpu_buffer_flag) {
cmd_line->AppendSwitch(switches::kVideoCaptureUseGpuMemoryBuffer);
}
}
#endif // BUILDFLAG(ENABLE_GPU_CHANNEL_MEDIA_CAPTURE) && !BUILDFLAG(IS_WIN)
std::unique_ptr<UtilitySandboxedProcessLauncherDelegate> delegate =
std::make_unique<UtilitySandboxedProcessLauncherDelegate>(
sandbox_type_, env_, *cmd_line);
#if BUILDFLAG(IS_WIN)
if (!preload_libraries_.empty()) {
delegate->SetPreloadLibraries(preload_libraries_);
}
#endif // BUILDFLAG(IS_WIN)
#if BUILDFLAG(USE_ZYGOTE)
if (zygote_for_testing_.has_value()) {
delegate->SetZygote(zygote_for_testing_.value());
}
#endif // BUILDFLAG(USE_ZYGOTE)
process_->LaunchWithFileData(std::move(delegate), std::move(cmd_line),
std::move(file_data_), true);
}
return true;
}
void UtilityProcessHost::OnProcessLaunched() {
launch_state_ = LaunchState::kLaunchComplete;
if (client_)
client_->OnProcessLaunched(process_->GetProcess());
}
void UtilityProcessHost::OnProcessLaunchFailed(int error_code) {
launch_state_ = LaunchState::kLaunchFailed;
}
void UtilityProcessHost::OnProcessCrashed(int exit_code) {
if (!client_)
return;
// Take ownership of |client_| so the destructor doesn't notify it of
// termination.
auto client = std::move(client_);
client->OnProcessCrashed();
}
std::optional<std::string> UtilityProcessHost::GetServiceName() {
return metrics_name_;
}
} // namespace content
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