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gecko-dev/dom/media/gmp/GMPParent.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "GMPParent.h"
#include "CDMStorageIdProvider.h"
#include "ChromiumCDMAdapter.h"
#include "GMPContentParent.h"
#include "GMPLog.h"
#include "GMPTimerParent.h"
#include "MediaResult.h"
#include "mozIGeckoMediaPluginService.h"
#include "mozilla/dom/WidevineCDMManifestBinding.h"
#include "mozilla/ipc/CrashReporterHost.h"
#include "mozilla/ipc/Endpoint.h"
#include "mozilla/ipc/GeckoChildProcessHost.h"
#if defined(XP_LINUX) && defined(MOZ_SANDBOX)
# include "mozilla/SandboxInfo.h"
#endif
#include "mozilla/Services.h"
#include "mozilla/SSE.h"
#include "mozilla/SyncRunnable.h"
#include "mozilla/Telemetry.h"
#include "mozilla/Unused.h"
#include "nsComponentManagerUtils.h"
#include "nsIRunnable.h"
#include "nsIObserverService.h"
#include "nsIWritablePropertyBag2.h"
#include "nsPrintfCString.h"
#include "nsThreadUtils.h"
#include "runnable_utils.h"
#include "VideoUtils.h"
#ifdef XP_WIN
# include "WMFDecoderModule.h"
#endif
#if defined(MOZ_WIDGET_ANDROID)
# include "mozilla/java/GeckoProcessManagerWrappers.h"
# include "mozilla/java/GeckoProcessTypeWrappers.h"
#endif // defined(MOZ_WIDGET_ANDROID)
#if defined(XP_MACOSX)
# include "nsMacUtilsImpl.h"
# include "base/process_util.h"
#endif // defined(XP_MACOSX)
using mozilla::ipc::GeckoChildProcessHost;
using CrashReporter::AnnotationTable;
using CrashReporter::GetIDFromMinidump;
namespace mozilla::gmp {
#define GMP_PARENT_LOG_DEBUG(x, ...) \
GMP_LOG_DEBUG("GMPParent[%p|childPid=%d] " x, this, mChildPid, ##__VA_ARGS__)
#ifdef __CLASS__
# undef __CLASS__
#endif
#define __CLASS__ "GMPParent"
GMPParent::GMPParent()
: mState(GMPStateNotLoaded),
mPluginId(GeckoChildProcessHost::GetUniqueID()),
mProcess(nullptr),
mDeleteProcessOnlyOnUnload(false),
mAbnormalShutdownInProgress(false),
mIsBlockingDeletion(false),
mCanDecrypt(false),
mGMPContentChildCount(0),
mChildPid(0),
mHoldingSelfRef(false),
#if defined(XP_MACOSX) && defined(__aarch64__)
mChildLaunchArch(base::PROCESS_ARCH_INVALID),
#endif
mMainThread(GetMainThreadSerialEventTarget()) {
MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
GMP_PARENT_LOG_DEBUG("GMPParent ctor id=%u", mPluginId);
}
GMPParent::~GMPParent() {
// This method is not restricted to a specific thread.
GMP_PARENT_LOG_DEBUG("GMPParent dtor id=%u", mPluginId);
MOZ_ASSERT(!mProcess);
}
void GMPParent::CloneFrom(const GMPParent* aOther) {
MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
MOZ_ASSERT(aOther->mDirectory && aOther->mService, "null plugin directory");
mService = aOther->mService;
mDirectory = aOther->mDirectory;
mName = aOther->mName;
mVersion = aOther->mVersion;
mDescription = aOther->mDescription;
mDisplayName = aOther->mDisplayName;
#if defined(XP_WIN) || defined(XP_LINUX)
mLibs = aOther->mLibs;
#endif
for (const GMPCapability& cap : aOther->mCapabilities) {
mCapabilities.AppendElement(cap);
}
mAdapter = aOther->mAdapter;
#if defined(XP_MACOSX) && defined(__aarch64__)
mChildLaunchArch = aOther->mChildLaunchArch;
#endif
}
#if defined(XP_MACOSX)
nsresult GMPParent::GetPluginFileArch(nsIFile* aPluginDir,
nsAutoString& aLeafName,
uint32_t& aArchSet) {
// Build up the plugin filename
nsAutoString baseName;
baseName = Substring(aLeafName, 4, aLeafName.Length() - 1);
nsAutoString pluginFileName = u"lib"_ns + baseName + u".dylib"_ns;
GMP_PARENT_LOG_DEBUG("%s: pluginFileName: %s", __FUNCTION__,
NS_LossyConvertUTF16toASCII(pluginFileName).get());
// Create an nsIFile representing the plugin
nsCOMPtr<nsIFile> pluginFile;
nsresult rv = aPluginDir->Clone(getter_AddRefs(pluginFile));
NS_ENSURE_SUCCESS(rv, rv);
pluginFile->AppendRelativePath(pluginFileName);
// Get the full plugin path
nsCString pluginPath;
rv = pluginFile->GetNativePath(pluginPath);
NS_ENSURE_SUCCESS(rv, rv);
GMP_PARENT_LOG_DEBUG("%s: pluginPath: %s", __FUNCTION__, pluginPath.get());
rv = nsMacUtilsImpl::GetArchitecturesForBinary(pluginPath.get(), &aArchSet);
NS_ENSURE_SUCCESS(rv, rv);
# if defined(__aarch64__)
mPluginFilePath = pluginPath;
# endif
return NS_OK;
}
#endif // defined(XP_MACOSX)
RefPtr<GenericPromise> GMPParent::Init(GeckoMediaPluginServiceParent* aService,
nsIFile* aPluginDir) {
MOZ_ASSERT(aPluginDir);
MOZ_ASSERT(aService);
MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
mService = aService;
mDirectory = aPluginDir;
// aPluginDir is <profile-dir>/<gmp-plugin-id>/<version>
// where <gmp-plugin-id> should be gmp-gmpopenh264
nsCOMPtr<nsIFile> parent;
nsresult rv = aPluginDir->GetParent(getter_AddRefs(parent));
if (NS_WARN_IF(NS_FAILED(rv))) {
return GenericPromise::CreateAndReject(rv, __func__);
}
nsAutoString parentLeafName;
rv = parent->GetLeafName(parentLeafName);
if (NS_WARN_IF(NS_FAILED(rv))) {
return GenericPromise::CreateAndReject(rv, __func__);
}
GMP_PARENT_LOG_DEBUG("%s: for %s", __FUNCTION__,
NS_LossyConvertUTF16toASCII(parentLeafName).get());
MOZ_ASSERT(parentLeafName.Length() > 4);
mName = Substring(parentLeafName, 4);
#if defined(XP_MACOSX)
uint32_t pluginArch = 0;
rv = GetPluginFileArch(aPluginDir, parentLeafName, pluginArch);
if (NS_FAILED(rv)) {
GMP_PARENT_LOG_DEBUG("%s: Plugin arch error: %d", __FUNCTION__, rv);
} else {
GMP_PARENT_LOG_DEBUG("%s: Plugin arch: 0x%x", __FUNCTION__, pluginArch);
}
uint32_t x86 = base::PROCESS_ARCH_X86_64 | base::PROCESS_ARCH_I386;
# if defined(__aarch64__)
uint32_t arm64 = base::PROCESS_ARCH_ARM_64;
// When executing in an ARM64 process, if the library is x86 or x64,
// set |mChildLaunchArch| to x64 and allow the library to be used as long
// as this process is a universal binary.
if (!(pluginArch & arm64) && (pluginArch & x86)) {
bool isWidevine = parentLeafName.Find("widevine") != kNotFound;
bool isWidevineAllowed =
StaticPrefs::media_gmp_widevinecdm_allow_x64_plugin_on_arm64();
bool isH264 = parentLeafName.Find("openh264") != kNotFound;
bool isH264Allowed =
StaticPrefs::media_gmp_gmpopenh264_allow_x64_plugin_on_arm64();
// Only allow x64 child GMP processes for Widevine and OpenH264
if (!isWidevine && !isH264) {
return GenericPromise::CreateAndReject(NS_ERROR_NOT_IMPLEMENTED,
__func__);
}
// And only if prefs permit it.
if ((isWidevine && !isWidevineAllowed) || (isH264 && !isH264Allowed)) {
return GenericPromise::CreateAndReject(NS_ERROR_PLUGIN_DISABLED,
__func__);
}
// We have an x64 library. Get the bundle architecture to determine
// if we are a universal binary and hence if we can launch an x64
// child process to host this plugin.
uint32_t bundleArch = base::PROCESS_ARCH_INVALID;
rv = nsMacUtilsImpl::GetArchitecturesForBundle(&bundleArch);
if (NS_FAILED(rv)) {
// If we fail here, continue as if this is not a univeral binary.
GMP_PARENT_LOG_DEBUG("%s: Bundle arch error: %d", __FUNCTION__, rv);
} else {
GMP_PARENT_LOG_DEBUG("%s: Bundle arch: 0x%x", __FUNCTION__, bundleArch);
}
bool isUniversalBinary = (bundleArch & base::PROCESS_ARCH_X86_64) &&
(bundleArch & base::PROCESS_ARCH_ARM_64);
if (isUniversalBinary) {
mChildLaunchArch = base::PROCESS_ARCH_X86_64;
PreTranslateBins();
} else {
return GenericPromise::CreateAndReject(NS_ERROR_NOT_IMPLEMENTED,
__func__);
}
}
# else
// When executing in a non-ARM process, if the library is not x86 or x64,
// remove it and return an error. This prevents a child process crash due
// to loading an incompatible library and forces a new plugin version to be
// downloaded when the check is next performed. This could occur if a profile
// is moved from an ARM64 system to an x64 system.
if ((pluginArch & x86) == 0) {
GMP_PARENT_LOG_DEBUG("%s: Removing plugin directory", __FUNCTION__);
aPluginDir->Remove(true);
return GenericPromise::CreateAndReject(NS_ERROR_NOT_IMPLEMENTED, __func__);
}
# endif // defined(__aarch64__)
#endif // defined(XP_MACOSX)
return ReadGMPMetaData();
}
void GMPParent::Crash() {
if (mState != GMPStateNotLoaded) {
Unused << SendCrashPluginNow();
}
}
nsresult GMPParent::LoadProcess() {
MOZ_ASSERT(mDirectory, "Plugin directory cannot be NULL!");
MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
MOZ_ASSERT(mState == GMPStateNotLoaded);
nsAutoString path;
if (NS_WARN_IF(NS_FAILED(mDirectory->GetPath(path)))) {
return NS_ERROR_FAILURE;
}
GMP_PARENT_LOG_DEBUG("%s: for %s", __FUNCTION__,
NS_ConvertUTF16toUTF8(path).get());
if (!mProcess) {
mProcess = new GMPProcessParent(NS_ConvertUTF16toUTF8(path).get());
#if defined(XP_MACOSX) && defined(MOZ_SANDBOX)
mProcess->SetRequiresWindowServer(mAdapter.EqualsLiteral("chromium"));
#endif
#if defined(XP_MACOSX) && defined(__aarch64__)
mProcess->SetLaunchArchitecture(mChildLaunchArch);
#endif
if (!mProcess->Launch(30 * 1000)) {
GMP_PARENT_LOG_DEBUG("%s: Failed to launch new child process",
__FUNCTION__);
mProcess->Delete();
mProcess = nullptr;
return NS_ERROR_FAILURE;
}
mChildPid = base::GetProcId(mProcess->GetChildProcessHandle());
GMP_PARENT_LOG_DEBUG("%s: Launched new child process", __FUNCTION__);
bool opened = Open(mProcess->TakeChannel(),
base::GetProcId(mProcess->GetChildProcessHandle()));
if (!opened) {
GMP_PARENT_LOG_DEBUG("%s: Failed to open channel to new child process",
__FUNCTION__);
mProcess->Delete();
mProcess = nullptr;
return NS_ERROR_FAILURE;
}
GMP_PARENT_LOG_DEBUG("%s: Opened channel to new child process",
__FUNCTION__);
// ComputeStorageId may return empty string, we leave the error handling to
// CDM. The CDM will reject the promise once we provide a empty string of
// storage id.
bool ok =
SendProvideStorageId(CDMStorageIdProvider::ComputeStorageId(mNodeId));
if (!ok) {
GMP_PARENT_LOG_DEBUG("%s: Failed to send storage id to child process",
__FUNCTION__);
return NS_ERROR_FAILURE;
}
GMP_PARENT_LOG_DEBUG("%s: Sent storage id to child process", __FUNCTION__);
#if defined(XP_WIN) || defined(XP_LINUX)
if (!mLibs.IsEmpty()) {
bool ok = SendPreloadLibs(mLibs);
if (!ok) {
GMP_PARENT_LOG_DEBUG("%s: Failed to send preload-libs to child process",
__FUNCTION__);
return NS_ERROR_FAILURE;
}
GMP_PARENT_LOG_DEBUG("%s: Sent preload-libs ('%s') to child process",
__FUNCTION__, mLibs.get());
}
#endif
// Intr call to block initialization on plugin load.
if (!CallStartPlugin(mAdapter)) {
GMP_PARENT_LOG_DEBUG("%s: Failed to send start to child process",
__FUNCTION__);
return NS_ERROR_FAILURE;
}
GMP_PARENT_LOG_DEBUG("%s: Sent StartPlugin to child process", __FUNCTION__);
}
mState = GMPStateLoaded;
// Hold a self ref while the child process is alive. This ensures that
// during shutdown the GMPParent stays alive long enough to
// terminate the child process.
MOZ_ASSERT(!mHoldingSelfRef);
mHoldingSelfRef = true;
AddRef();
return NS_OK;
}
mozilla::ipc::IPCResult GMPParent::RecvPGMPContentChildDestroyed() {
--mGMPContentChildCount;
if (!IsUsed()) {
CloseIfUnused();
}
return IPC_OK();
}
void GMPParent::CloseIfUnused() {
MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
GMP_PARENT_LOG_DEBUG("%s", __FUNCTION__);
if ((mDeleteProcessOnlyOnUnload || mState == GMPStateLoaded ||
mState == GMPStateUnloading) &&
!IsUsed()) {
// Ensure all timers are killed.
for (uint32_t i = mTimers.Length(); i > 0; i--) {
mTimers[i - 1]->Shutdown();
}
// Shutdown GMPStorage. Given that all protocol actors must be shutdown
// (!Used() is true), all storage operations should be complete.
for (size_t i = mStorage.Length(); i > 0; i--) {
mStorage[i - 1]->Shutdown();
}
Shutdown();
}
}
void GMPParent::CloseActive(bool aDieWhenUnloaded) {
MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
GMP_PARENT_LOG_DEBUG("%s: state %d", __FUNCTION__, mState);
if (aDieWhenUnloaded) {
mDeleteProcessOnlyOnUnload = true; // don't allow this to go back...
}
if (mState == GMPStateLoaded) {
mState = GMPStateUnloading;
}
if (mState != GMPStateNotLoaded && IsUsed()) {
Unused << SendCloseActive();
CloseIfUnused();
}
}
void GMPParent::MarkForDeletion() {
mDeleteProcessOnlyOnUnload = true;
mIsBlockingDeletion = true;
}
bool GMPParent::IsMarkedForDeletion() { return mIsBlockingDeletion; }
void GMPParent::Shutdown() {
MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
GMP_PARENT_LOG_DEBUG("%s", __FUNCTION__);
if (mAbnormalShutdownInProgress) {
return;
}
MOZ_ASSERT(!IsUsed());
if (mState == GMPStateNotLoaded || mState == GMPStateClosing) {
return;
}
RefPtr<GMPParent> self(this);
DeleteProcess();
// XXX Get rid of mDeleteProcessOnlyOnUnload and this code when
// Bug 1043671 is fixed
if (!mDeleteProcessOnlyOnUnload) {
// Destroy ourselves and rise from the fire to save memory
mService->ReAddOnGMPThread(self);
} // else we've been asked to die and stay dead
MOZ_ASSERT(mState == GMPStateNotLoaded);
}
class NotifyGMPShutdownTask : public Runnable {
public:
explicit NotifyGMPShutdownTask(const nsAString& aNodeId)
: Runnable("NotifyGMPShutdownTask"), mNodeId(aNodeId) {}
NS_IMETHOD Run() override {
MOZ_ASSERT(NS_IsMainThread());
nsCOMPtr<nsIObserverService> obsService =
mozilla::services::GetObserverService();
MOZ_ASSERT(obsService);
if (obsService) {
obsService->NotifyObservers(nullptr, "gmp-shutdown", mNodeId.get());
}
return NS_OK;
}
nsString mNodeId;
};
void GMPParent::ChildTerminated() {
RefPtr<GMPParent> self(this);
nsCOMPtr<nsISerialEventTarget> gmpEventTarget = GMPEventTarget();
if (!gmpEventTarget) {
// Bug 1163239 - this can happen on shutdown.
// PluginTerminated removes the GMP from the GMPService.
// On shutdown we can have this case where it is already been
// removed so there is no harm in not trying to remove it again.
GMP_PARENT_LOG_DEBUG("%s::%s: GMPEventTarget() returned nullptr.",
__CLASS__, __FUNCTION__);
} else {
gmpEventTarget->Dispatch(
NewRunnableMethod<RefPtr<GMPParent>>(
"gmp::GeckoMediaPluginServiceParent::PluginTerminated", mService,
&GeckoMediaPluginServiceParent::PluginTerminated, self),
NS_DISPATCH_NORMAL);
}
}
void GMPParent::DeleteProcess() {
MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
GMP_PARENT_LOG_DEBUG("%s", __FUNCTION__);
if (mState != GMPStateClosing) {
// Don't Close() twice!
// Probably remove when bug 1043671 is resolved
mState = GMPStateClosing;
Close();
}
mProcess->Delete(NewRunnableMethod("gmp::GMPParent::ChildTerminated", this,
&GMPParent::ChildTerminated));
GMP_PARENT_LOG_DEBUG("%s: Shut down process", __FUNCTION__);
mProcess = nullptr;
#if defined(MOZ_WIDGET_ANDROID)
if (mState != GMPStateNotLoaded) {
nsCOMPtr<nsIEventTarget> launcherThread(GetIPCLauncher());
MOZ_ASSERT(launcherThread);
auto procType = java::GeckoProcessType::GMPLUGIN();
auto selector =
java::GeckoProcessManager::Selector::New(procType, OtherPid());
launcherThread->Dispatch(NS_NewRunnableFunction(
"GMPParent::DeleteProcess",
[selector =
java::GeckoProcessManager::Selector::GlobalRef(selector)]() {
java::GeckoProcessManager::ShutdownProcess(selector);
}));
}
#endif // defined(MOZ_WIDGET_ANDROID)
mState = GMPStateNotLoaded;
nsCOMPtr<nsIRunnable> r =
new NotifyGMPShutdownTask(NS_ConvertUTF8toUTF16(mNodeId));
mMainThread->Dispatch(r.forget());
if (mHoldingSelfRef) {
Release();
mHoldingSelfRef = false;
}
}
GMPState GMPParent::State() const { return mState; }
nsCOMPtr<nsISerialEventTarget> GMPParent::GMPEventTarget() {
nsCOMPtr<mozIGeckoMediaPluginService> mps =
do_GetService("@mozilla.org/gecko-media-plugin-service;1");
MOZ_ASSERT(mps);
if (!mps) {
return nullptr;
}
// Note: GeckoMediaPluginService::GetThread() is threadsafe, and returns
// nullptr if the GeckoMediaPluginService has started shutdown.
nsCOMPtr<nsIThread> gmpThread;
mps->GetThread(getter_AddRefs(gmpThread));
return gmpThread ? gmpThread->SerialEventTarget() : nullptr;
}
/* static */
bool GMPCapability::Supports(const nsTArray<GMPCapability>& aCapabilities,
const nsCString& aAPI,
const nsTArray<nsCString>& aTags) {
for (const nsCString& tag : aTags) {
if (!GMPCapability::Supports(aCapabilities, aAPI, tag)) {
return false;
}
}
return true;
}
/* static */
bool GMPCapability::Supports(const nsTArray<GMPCapability>& aCapabilities,
const nsCString& aAPI, const nsCString& aTag) {
for (const GMPCapability& capabilities : aCapabilities) {
if (!capabilities.mAPIName.Equals(aAPI)) {
continue;
}
for (const nsCString& tag : capabilities.mAPITags) {
if (tag.Equals(aTag)) {
#ifdef XP_WIN
// Clearkey on Windows advertises that it can decode in its GMP info
// file, but uses Windows Media Foundation to decode. That's not present
// on Windows XP, and on some Vista, Windows N, and KN variants without
// certain services packs.
if (tag.EqualsLiteral(EME_KEY_SYSTEM_CLEARKEY)) {
if (capabilities.mAPIName.EqualsLiteral(GMP_API_VIDEO_DECODER)) {
if (!WMFDecoderModule::HasH264()) {
continue;
}
}
}
#endif
return true;
}
}
}
return false;
}
bool GMPParent::EnsureProcessLoaded() {
if (mState == GMPStateLoaded) {
return true;
}
if (mState == GMPStateClosing || mState == GMPStateUnloading) {
return false;
}
nsresult rv = LoadProcess();
return NS_SUCCEEDED(rv);
}
void GMPParent::AddCrashAnnotations() {
if (mCrashReporter) {
mCrashReporter->AddAnnotation(CrashReporter::Annotation::GMPPlugin, true);
mCrashReporter->AddAnnotation(CrashReporter::Annotation::PluginFilename,
NS_ConvertUTF16toUTF8(mName));
mCrashReporter->AddAnnotation(CrashReporter::Annotation::PluginName,
mDisplayName);
mCrashReporter->AddAnnotation(CrashReporter::Annotation::PluginVersion,
mVersion);
}
}
void GMPParent::GetCrashID(nsString& aResult) {
AddCrashAnnotations();
GenerateCrashReport(OtherPid(), &aResult);
}
static void GMPNotifyObservers(const uint32_t aPluginID,
const nsACString& aPluginName,
const nsAString& aPluginDumpID) {
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
nsCOMPtr<nsIWritablePropertyBag2> propbag =
do_CreateInstance("@mozilla.org/hash-property-bag;1");
if (obs && propbag) {
propbag->SetPropertyAsUint32(u"pluginID"_ns, aPluginID);
propbag->SetPropertyAsACString(u"pluginName"_ns, aPluginName);
propbag->SetPropertyAsAString(u"pluginDumpID"_ns, aPluginDumpID);
obs->NotifyObservers(propbag, "gmp-plugin-crash", nullptr);
}
RefPtr<gmp::GeckoMediaPluginService> service =
gmp::GeckoMediaPluginService::GetGeckoMediaPluginService();
if (service) {
service->RunPluginCrashCallbacks(aPluginID, aPluginName);
}
}
void GMPParent::ActorDestroy(ActorDestroyReason aWhy) {
MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
GMP_PARENT_LOG_DEBUG("%s: (%d)", __FUNCTION__, (int)aWhy);
if (AbnormalShutdown == aWhy) {
Telemetry::Accumulate(Telemetry::SUBPROCESS_ABNORMAL_ABORT, "gmplugin"_ns,
1);
nsString dumpID;
GetCrashID(dumpID);
if (dumpID.IsEmpty()) {
NS_WARNING("GMP crash without crash report");
dumpID = mName;
dumpID += '-';
AppendUTF8toUTF16(mVersion, dumpID);
}
// NotifyObservers is mainthread-only
nsCOMPtr<nsIRunnable> r =
WrapRunnableNM(&GMPNotifyObservers, mPluginId, mDisplayName, dumpID);
mMainThread->Dispatch(r.forget());
}
// warn us off trying to close again
mState = GMPStateClosing;
mAbnormalShutdownInProgress = true;
CloseActive(false);
// Normal Shutdown() will delete the process on unwind.
if (AbnormalShutdown == aWhy) {
RefPtr<GMPParent> self(this);
// Must not call Close() again in DeleteProcess(), as we'll recurse
// infinitely if we do.
MOZ_ASSERT(mState == GMPStateClosing);
DeleteProcess();
// Note: final destruction will be Dispatched to ourself
mService->ReAddOnGMPThread(self);
}
}
PGMPStorageParent* GMPParent::AllocPGMPStorageParent() {
GMPStorageParent* p = new GMPStorageParent(mNodeId, this);
mStorage.AppendElement(p); // Addrefs, released in DeallocPGMPStorageParent.
return p;
}
bool GMPParent::DeallocPGMPStorageParent(PGMPStorageParent* aActor) {
GMPStorageParent* p = static_cast<GMPStorageParent*>(aActor);
p->Shutdown();
mStorage.RemoveElement(p);
return true;
}
mozilla::ipc::IPCResult GMPParent::RecvPGMPStorageConstructor(
PGMPStorageParent* aActor) {
GMPStorageParent* p = (GMPStorageParent*)aActor;
if (NS_WARN_IF(NS_FAILED(p->Init()))) {
return IPC_FAIL_NO_REASON(this);
}
return IPC_OK();
}
mozilla::ipc::IPCResult GMPParent::RecvPGMPTimerConstructor(
PGMPTimerParent* actor) {
return IPC_OK();
}
PGMPTimerParent* GMPParent::AllocPGMPTimerParent() {
nsCOMPtr<nsISerialEventTarget> target = GMPEventTarget();
GMPTimerParent* p = new GMPTimerParent(target);
mTimers.AppendElement(
p); // Released in DeallocPGMPTimerParent, or on shutdown.
return p;
}
bool GMPParent::DeallocPGMPTimerParent(PGMPTimerParent* aActor) {
GMPTimerParent* p = static_cast<GMPTimerParent*>(aActor);
p->Shutdown();
mTimers.RemoveElement(p);
return true;
}
bool ReadInfoField(GMPInfoFileParser& aParser, const nsCString& aKey,
nsACString& aOutValue) {
if (!aParser.Contains(aKey) || aParser.Get(aKey).IsEmpty()) {
return false;
}
aOutValue = aParser.Get(aKey);
return true;
}
RefPtr<GenericPromise> GMPParent::ReadGMPMetaData() {
MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
MOZ_ASSERT(mDirectory, "Plugin directory cannot be NULL!");
MOZ_ASSERT(!mName.IsEmpty(), "Plugin mName cannot be empty!");
nsCOMPtr<nsIFile> infoFile;
nsresult rv = mDirectory->Clone(getter_AddRefs(infoFile));
if (NS_WARN_IF(NS_FAILED(rv))) {
return GenericPromise::CreateAndReject(rv, __func__);
}
infoFile->AppendRelativePath(mName + u".info"_ns);
if (FileExists(infoFile)) {
return ReadGMPInfoFile(infoFile);
}
// Maybe this is the Widevine adapted plugin?
nsCOMPtr<nsIFile> manifestFile;
rv = mDirectory->Clone(getter_AddRefs(manifestFile));
if (NS_WARN_IF(NS_FAILED(rv))) {
return GenericPromise::CreateAndReject(rv, __func__);
}
manifestFile->AppendRelativePath(u"manifest.json"_ns);
return ReadChromiumManifestFile(manifestFile);
}
RefPtr<GenericPromise> GMPParent::ReadGMPInfoFile(nsIFile* aFile) {
MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
GMPInfoFileParser parser;
if (!parser.Init(aFile)) {
return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
}
nsAutoCString apis;
if (!ReadInfoField(parser, "name"_ns, mDisplayName) ||
!ReadInfoField(parser, "description"_ns, mDescription) ||
!ReadInfoField(parser, "version"_ns, mVersion) ||
!ReadInfoField(parser, "apis"_ns, apis)) {
return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
}
#if defined(XP_WIN) || defined(XP_LINUX)
// "Libraries" field is optional.
ReadInfoField(parser, "libraries"_ns, mLibs);
#endif
nsTArray<nsCString> apiTokens;
SplitAt(", ", apis, apiTokens);
for (nsCString api : apiTokens) {
int32_t tagsStart = api.FindChar('[');
if (tagsStart == 0) {
// Not allowed to be the first character.
// API name must be at least one character.
continue;
}
GMPCapability cap;
if (tagsStart == -1) {
// No tags.
cap.mAPIName.Assign(api);
} else {
auto tagsEnd = api.FindChar(']');
if (tagsEnd == -1 || tagsEnd < tagsStart) {
// Invalid syntax, skip whole capability.
continue;
}
cap.mAPIName.Assign(Substring(api, 0, tagsStart));
if ((tagsEnd - tagsStart) > 1) {
const nsDependentCSubstring ts(
Substring(api, tagsStart + 1, tagsEnd - tagsStart - 1));
nsTArray<nsCString> tagTokens;
SplitAt(":", ts, tagTokens);
for (nsCString tag : tagTokens) {
cap.mAPITags.AppendElement(tag);
}
}
}
mCapabilities.AppendElement(std::move(cap));
}
if (mCapabilities.IsEmpty()) {
return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
}
return GenericPromise::CreateAndResolve(true, __func__);
}
RefPtr<GenericPromise> GMPParent::ReadChromiumManifestFile(nsIFile* aFile) {
MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
nsAutoCString json;
if (!ReadIntoString(aFile, json, 5 * 1024)) {
return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
}
// DOM JSON parsing needs to run on the main thread.
return InvokeAsync(mMainThread, this, __func__,
&GMPParent::ParseChromiumManifest,
NS_ConvertUTF8toUTF16(json));
}
static bool IsCDMAPISupported(
const mozilla::dom::WidevineCDMManifest& aManifest) {
nsresult ignored; // Note: ToInteger returns 0 on failure.
int32_t moduleVersion = aManifest.mX_cdm_module_versions.ToInteger(&ignored);
int32_t interfaceVersion =
aManifest.mX_cdm_interface_versions.ToInteger(&ignored);
int32_t hostVersion = aManifest.mX_cdm_host_versions.ToInteger(&ignored);
return ChromiumCDMAdapter::Supports(moduleVersion, interfaceVersion,
hostVersion);
}
RefPtr<GenericPromise> GMPParent::ParseChromiumManifest(
const nsAString& aJSON) {
GMP_PARENT_LOG_DEBUG("%s: for '%s'", __FUNCTION__,
NS_LossyConvertUTF16toASCII(aJSON).get());
MOZ_ASSERT(NS_IsMainThread());
mozilla::dom::WidevineCDMManifest m;
if (!m.Init(aJSON)) {
GMP_PARENT_LOG_DEBUG("%s: Failed to initialize json parser, failing.",
__FUNCTION__);
return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
}
if (!IsCDMAPISupported(m)) {
GMP_PARENT_LOG_DEBUG("%s: CDM API not supported, failing.", __FUNCTION__);
return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
}
CopyUTF16toUTF8(m.mName, mDisplayName);
CopyUTF16toUTF8(m.mDescription, mDescription);
CopyUTF16toUTF8(m.mVersion, mVersion);
#if defined(XP_LINUX) && defined(MOZ_SANDBOX)
if (!mozilla::SandboxInfo::Get().CanSandboxMedia()) {
nsPrintfCString msg(
"GMPParent::ParseChromiumManifest: Plugin \"%s\" is an EME CDM"
" but this system can't sandbox it; not loading.",
mDisplayName.get());
printf_stderr("%s\n", msg.get());
GMP_PARENT_LOG_DEBUG("%s", msg.get());
return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
}
#endif
nsCString kEMEKeySystem;
// We hard code a few of the settings because they can't be stored in the
// widevine manifest without making our API different to widevine's.
if (mDisplayName.EqualsASCII("clearkey")) {
kEMEKeySystem.AssignLiteral(EME_KEY_SYSTEM_CLEARKEY);
#if XP_WIN
mLibs = nsLiteralCString(
"dxva2.dll, evr.dll, freebl3.dll, mfh264dec.dll, mfplat.dll, "
"msmpeg2vdec.dll, nss3.dll, softokn3.dll");
#elif XP_LINUX
mLibs = "libfreeblpriv3.so, libsoftokn3.so"_ns;
#endif
} else if (mDisplayName.EqualsASCII("WidevineCdm")) {
kEMEKeySystem.AssignLiteral(EME_KEY_SYSTEM_WIDEVINE);
#if XP_WIN
// psapi.dll added for GetMappedFileNameW, which could possibly be avoided
// in future versions, see bug 1383611 for details.
mLibs = "dxva2.dll, psapi.dll"_ns;
#endif
} else if (mDisplayName.EqualsASCII("fake")) {
kEMEKeySystem.AssignLiteral("fake");
#if XP_WIN
mLibs = "dxva2.dll"_ns;
#endif
} else {
GMP_PARENT_LOG_DEBUG("%s: Unrecognized key system: %s, failing.",
__FUNCTION__, mDisplayName.get());
return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
}
GMPCapability video;
nsCString codecsString = NS_ConvertUTF16toUTF8(m.mX_cdm_codecs);
nsTArray<nsCString> codecs;
SplitAt(",", codecsString, codecs);
// Parse the codec strings in the manifest and map them to strings used
// internally by Gecko for capability recognition.
//
// Google's code to parse manifests can be used as a reference for strings
// the manifest may contain
// https://source.chromium.org/chromium/chromium/src/+/master:components/cdm/common/cdm_manifest.cc;l=74;drc=775880ced8a989191281e93854c7f2201f25068f
//
// Gecko's internal strings can be found at
// https://searchfox.org/mozilla-central/rev/ea63a0888d406fae720cf24f4727d87569a8cab5/dom/media/eme/MediaKeySystemAccess.cpp#149-155
for (const nsCString& chromiumCodec : codecs) {
nsCString codec;
if (chromiumCodec.EqualsASCII("vp8")) {
codec = "vp8"_ns;
} else if (chromiumCodec.EqualsASCII("vp9.0") || // Legacy string.
chromiumCodec.EqualsASCII("vp09")) {
codec = "vp9"_ns;
} else if (chromiumCodec.EqualsASCII("avc1")) {
codec = "h264"_ns;
} else if (chromiumCodec.EqualsASCII("av01")) {
codec = "av1"_ns;
} else {
GMP_PARENT_LOG_DEBUG("%s: Unrecognized codec: %s.", __FUNCTION__,
chromiumCodec.get());
MOZ_ASSERT_UNREACHABLE(
"Unhandled codec string! Need to add it to the parser.");
continue;
}
video.mAPITags.AppendElement(codec);
}
video.mAPITags.AppendElement(kEMEKeySystem);
video.mAPIName = nsLiteralCString(CHROMIUM_CDM_API);
mAdapter = u"chromium"_ns;
mCapabilities.AppendElement(std::move(video));
GMP_PARENT_LOG_DEBUG("%s: Successfully parsed manifest.", __FUNCTION__);
return GenericPromise::CreateAndResolve(true, __func__);
}
bool GMPParent::CanBeSharedCrossNodeIds() const {
return mNodeId.IsEmpty() &&
// XXX bug 1159300 hack -- maybe remove after openh264 1.4
// We don't want to use CDM decoders for non-encrypted playback
// just yet; especially not for WebRTC. Don't allow CDMs to be used
// without a node ID.
!mCanDecrypt;
}
bool GMPParent::CanBeUsedFrom(const nsACString& aNodeId) const {
return mNodeId == aNodeId;
}
void GMPParent::SetNodeId(const nsACString& aNodeId) {
MOZ_ASSERT(!aNodeId.IsEmpty());
mNodeId = aNodeId;
}
const nsCString& GMPParent::GetDisplayName() const { return mDisplayName; }
const nsCString& GMPParent::GetVersion() const { return mVersion; }
uint32_t GMPParent::GetPluginId() const { return mPluginId; }
void GMPParent::ResolveGetContentParentPromises() {
nsTArray<UniquePtr<MozPromiseHolder<GetGMPContentParentPromise>>> promises =
std::move(mGetContentParentPromises);
MOZ_ASSERT(mGetContentParentPromises.IsEmpty());
RefPtr<GMPContentParent::CloseBlocker> blocker(
new GMPContentParent::CloseBlocker(mGMPContentParent));
for (auto& holder : promises) {
holder->Resolve(blocker, __func__);
}
}
bool GMPParent::OpenPGMPContent() {
MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
MOZ_ASSERT(!mGMPContentParent);
Endpoint<PGMPContentParent> parent;
Endpoint<PGMPContentChild> child;
if (NS_WARN_IF(NS_FAILED(PGMPContent::CreateEndpoints(
base::GetCurrentProcId(), OtherPid(), &parent, &child)))) {
return false;
}
mGMPContentParent = new GMPContentParent(this);
if (!parent.Bind(mGMPContentParent)) {
return false;
}
if (!SendInitGMPContentChild(std::move(child))) {
return false;
}
ResolveGetContentParentPromises();
return true;
}
void GMPParent::RejectGetContentParentPromises() {
nsTArray<UniquePtr<MozPromiseHolder<GetGMPContentParentPromise>>> promises =
std::move(mGetContentParentPromises);
MOZ_ASSERT(mGetContentParentPromises.IsEmpty());
for (auto& holder : promises) {
holder->Reject(NS_ERROR_FAILURE, __func__);
}
}
void GMPParent::GetGMPContentParent(
UniquePtr<MozPromiseHolder<GetGMPContentParentPromise>>&& aPromiseHolder) {
MOZ_ASSERT(GMPEventTarget()->IsOnCurrentThread());
GMP_PARENT_LOG_DEBUG("%s %p", __FUNCTION__, this);
if (mGMPContentParent) {
RefPtr<GMPContentParent::CloseBlocker> blocker(
new GMPContentParent::CloseBlocker(mGMPContentParent));
aPromiseHolder->Resolve(blocker, __func__);
} else {
mGetContentParentPromises.AppendElement(std::move(aPromiseHolder));
// If we don't have a GMPContentParent and we try to get one for the first
// time (mGetContentParentPromises.Length() == 1) then call
// PGMPContent::Open. If more calls to GetGMPContentParent happen before
// mGMPContentParent has been set then we should just store them, so that
// they get called when we set mGMPContentParent as a result of the
// PGMPContent::Open call.
if (mGetContentParentPromises.Length() == 1) {
if (!EnsureProcessLoaded() || !OpenPGMPContent()) {
RejectGetContentParentPromises();
return;
}
// We want to increment this as soon as possible, to avoid that we'd try
// to shut down the GMP process while we're still trying to get a
// PGMPContentParent actor.
++mGMPContentChildCount;
}
}
}
already_AddRefed<GMPContentParent> GMPParent::ForgetGMPContentParent() {
MOZ_ASSERT(mGetContentParentPromises.IsEmpty());
return mGMPContentParent.forget();
}
bool GMPParent::EnsureProcessLoaded(base::ProcessId* aID) {
if (!EnsureProcessLoaded()) {
return false;
}
*aID = OtherPid();
return true;
}
void GMPParent::IncrementGMPContentChildCount() { ++mGMPContentChildCount; }
nsString GMPParent::GetPluginBaseName() const { return u"gmp-"_ns + mName; }
#if defined(XP_MACOSX) && defined(__aarch64__)
void GMPParent::PreTranslateBins() {
nsCOMPtr<nsIRunnable> event = mozilla::NewRunnableMethod(
"RosettaTranslation", this, &GMPParent::PreTranslateBinsWorker);
DebugOnly<nsresult> rv =
NS_DispatchBackgroundTask(event.forget(), NS_DISPATCH_EVENT_MAY_BLOCK);
MOZ_ASSERT(NS_SUCCEEDED(rv));
}
void GMPParent::PreTranslateBinsWorker() {
int rv = nsMacUtilsImpl::PreTranslateXUL();
GMP_PARENT_LOG_DEBUG("%s: XUL translation result: %d", __FUNCTION__, rv);
rv = nsMacUtilsImpl::PreTranslateBinary(mPluginFilePath);
GMP_PARENT_LOG_DEBUG("%s: %s translation result: %d", __FUNCTION__,
mPluginFilePath.get(), rv);
}
#endif
} // namespace mozilla::gmp
#undef GMP_PARENT_LOG_DEBUG
#undef __CLASS__
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