forked from mirrors/gecko-dev
803225ac22
With the current sandboxing configuration, FFmpegRuntimeLinker::Init() can't access libavcodec.so, so video decoding fails in the RDD process and fallbacks to the content process. With media.allow-audio-non-utility knob (from bug #1850904) toggled to false enforcing audio decoding in the Utility process, this has the side effect of enforcing video decoding in the RDD process, and thus video decoding fails. Preloading libavcodec.so like it was done for libmozavcodec.so and libmozavutil.so in bug #1713745 fixes it, as the second dlopen() call hits the ld.so cache and returns the preloaded library handle. replaces/supersedes https://phabricator.services.mozilla.com/D190475 Differential Revision: https://phabricator.services.mozilla.com/D193353
52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "RDDProcessImpl.h"
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#include "mozilla/ipc/IOThreadChild.h"
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#include "mozilla/GeckoArgs.h"
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#if defined(XP_WIN) && defined(MOZ_SANDBOX)
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# include "mozilla/sandboxTarget.h"
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#elif defined(__OpenBSD__) && defined(MOZ_SANDBOX)
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# include "mozilla/SandboxSettings.h"
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# include "prlink.h"
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#endif
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namespace mozilla {
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using namespace ipc;
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RDDProcessImpl::~RDDProcessImpl() = default;
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bool RDDProcessImpl::Init(int aArgc, char* aArgv[]) {
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#if defined(MOZ_SANDBOX) && defined(XP_WIN)
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// Preload AV dlls so we can enable Binary Signature Policy
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// to restrict further dll loads.
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LoadLibraryW(L"mozavcodec.dll");
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LoadLibraryW(L"mozavutil.dll");
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mozilla::SandboxTarget::Instance()->StartSandbox();
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#elif defined(__OpenBSD__) && defined(MOZ_SANDBOX)
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PR_LoadLibrary("libmozavcodec.so");
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PR_LoadLibrary("libmozavutil.so");
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PR_LoadLibrary("libavcodec.so");
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StartOpenBSDSandbox(GeckoProcessType_RDD);
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#endif
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Maybe<const char*> parentBuildID =
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geckoargs::sParentBuildID.Get(aArgc, aArgv);
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if (parentBuildID.isNothing()) {
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return false;
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}
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if (!ProcessChild::InitPrefs(aArgc, aArgv)) {
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return false;
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}
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return mRDD->Init(TakeInitialEndpoint(), *parentBuildID);
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}
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void RDDProcessImpl::CleanUp() { NS_ShutdownXPCOM(nullptr); }
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} // namespace mozilla
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