242 lines
6.9 KiB
C++
242 lines
6.9 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* vim: sw=4 ts=4 et :
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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 "nsXPCOM.h"
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#include "nsXULAppAPI.h"
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#include "nsAutoPtr.h"
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// FIXME/cjones testing
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#if !defined(OS_WIN)
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#include <unistd.h>
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#endif
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#ifdef XP_WIN
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#include <windows.h>
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// we want a wmain entry point
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// but we don't want its DLL load protection, because we'll handle it here
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#define XRE_DONT_PROTECT_DLL_LOAD
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#include "nsWindowsWMain.cpp"
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#include "nsSetDllDirectory.h"
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#endif
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#include "GMPLoader.h"
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#if defined(XP_WIN) && defined(MOZ_SANDBOX)
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#include "mozilla/sandboxTarget.h"
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#include "mozilla/sandboxing/loggingCallbacks.h"
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#include "sandbox/win/src/sandbox_factory.h"
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#endif
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#if defined(XP_LINUX) && defined(MOZ_GMP_SANDBOX)
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#include "mozilla/Sandbox.h"
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#include "mozilla/SandboxInfo.h"
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#endif
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#ifdef MOZ_WIDGET_GONK
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# include <sys/time.h>
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# include <sys/resource.h>
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# include <binder/ProcessState.h>
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# ifdef LOGE_IF
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# undef LOGE_IF
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# endif
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# include <android/log.h>
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# define LOGE_IF(cond, ...) \
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( (CONDITION(cond)) \
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? ((void)__android_log_print(ANDROID_LOG_ERROR, \
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"Gecko:MozillaRntimeMain", __VA_ARGS__)) \
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: (void)0 )
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# ifdef MOZ_CONTENT_SANDBOX
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# include "mozilla/Sandbox.h"
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# endif
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#endif // MOZ_WIDGET_GONK
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#ifdef MOZ_NUWA_PROCESS
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#include <binder/ProcessState.h>
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#include "ipc/Nuwa.h"
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#endif
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#ifdef MOZ_WIDGET_GONK
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static void
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InitializeBinder(void *aDummy) {
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// Change thread priority to 0 only during calling ProcessState::self().
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// The priority is registered to binder driver and used for default Binder
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// Thread's priority.
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// To change the process's priority to small value need's root permission.
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int curPrio = getpriority(PRIO_PROCESS, 0);
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int err = setpriority(PRIO_PROCESS, 0, 0);
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MOZ_ASSERT(!err);
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LOGE_IF(err, "setpriority failed. Current process needs root permission.");
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android::ProcessState::self()->startThreadPool();
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setpriority(PRIO_PROCESS, 0, curPrio);
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}
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#endif
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#if defined(XP_WIN) && defined(MOZ_SANDBOX)
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static bool gIsSandboxEnabled = false;
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class WinSandboxStarter : public mozilla::gmp::SandboxStarter {
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public:
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virtual bool Start(const char *aLibPath) override {
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if (gIsSandboxEnabled) {
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sandbox::SandboxFactory::GetTargetServices()->LowerToken();
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}
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return true;
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}
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};
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#endif
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#if defined(XP_LINUX) && defined(MOZ_GMP_SANDBOX)
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class LinuxSandboxStarter : public mozilla::gmp::SandboxStarter {
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LinuxSandboxStarter() { }
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public:
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static SandboxStarter* Make() {
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if (mozilla::SandboxInfo::Get().CanSandboxMedia()) {
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return new LinuxSandboxStarter();
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} else {
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// Sandboxing isn't possible, but the parent has already
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// checked that this plugin doesn't require it. (Bug 1074561)
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return nullptr;
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}
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}
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virtual bool Start(const char *aLibPath) override {
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mozilla::SetMediaPluginSandbox(aLibPath);
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return true;
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}
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};
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#endif
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#if defined(XP_MACOSX) && defined(MOZ_GMP_SANDBOX)
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class MacSandboxStarter : public mozilla::gmp::SandboxStarter {
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public:
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virtual bool Start(const char *aLibPath) override {
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std::string err;
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bool rv = mozilla::StartMacSandbox(mInfo, err);
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if (!rv) {
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fprintf(stderr, "sandbox_init() failed! Error \"%s\"\n", err.c_str());
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}
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return rv;
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}
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virtual void SetSandboxInfo(MacSandboxInfo* aSandboxInfo) override {
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mInfo = *aSandboxInfo;
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}
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private:
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MacSandboxInfo mInfo;
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};
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#endif
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mozilla::gmp::SandboxStarter*
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MakeSandboxStarter()
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{
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#if defined(XP_WIN) && defined(MOZ_SANDBOX)
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return new WinSandboxStarter();
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#elif defined(XP_LINUX) && defined(MOZ_GMP_SANDBOX)
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return LinuxSandboxStarter::Make();
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#elif defined(XP_MACOSX) && defined(MOZ_GMP_SANDBOX)
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return new MacSandboxStarter();
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#else
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return nullptr;
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#endif
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}
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int
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content_process_main(int argc, char* argv[])
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{
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// Check for the absolute minimum number of args we need to move
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// forward here. We expect the last arg to be the child process type.
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if (argc < 1) {
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return 3;
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}
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bool isNuwa = false;
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for (int i = 1; i < argc; i++) {
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isNuwa |= strcmp(argv[i], "-nuwa") == 0;
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#if defined(XP_WIN) && defined(MOZ_SANDBOX)
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gIsSandboxEnabled |= strcmp(argv[i], "-sandbox") == 0;
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#endif
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}
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#if defined(XP_WIN) && defined(MOZ_SANDBOX)
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if (gIsSandboxEnabled) {
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sandbox::TargetServices* target_service =
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sandbox::SandboxFactory::GetTargetServices();
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if (!target_service) {
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return 1;
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}
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sandbox::ResultCode result = target_service->Init();
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if (result != sandbox::SBOX_ALL_OK) {
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return 2;
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}
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mozilla::SandboxTarget::Instance()->SetTargetServices(target_service);
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mozilla::sandboxing::PrepareForLogging();
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}
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#endif
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XRE_SetProcessType(argv[--argc]);
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#ifdef MOZ_NUWA_PROCESS
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if (isNuwa) {
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PrepareNuwaProcess();
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}
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#endif
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#if defined(XP_LINUX) && defined(MOZ_SANDBOX)
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// This has to happen while we're still single-threaded, and on
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// B2G that means before the Android Binder library is
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// initialized. Additional special handling is needed for Nuwa:
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// the Nuwa process itself needs to be unsandboxed, and the same
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// single-threadedness condition applies to its children; see also
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// AfterNuwaFork().
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mozilla::SandboxEarlyInit(XRE_GetProcessType(), isNuwa);
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#endif
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#ifdef MOZ_WIDGET_GONK
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// This creates a ThreadPool for binder ipc. A ThreadPool is necessary to
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// receive binder calls, though not necessary to send binder calls.
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// ProcessState::Self() also needs to be called once on the main thread to
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// register the main thread with the binder driver.
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#ifdef MOZ_NUWA_PROCESS
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if (!isNuwa) {
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InitializeBinder(nullptr);
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} else {
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NuwaAddFinalConstructor(&InitializeBinder, nullptr);
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}
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#else
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InitializeBinder(nullptr);
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#endif
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#endif
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#ifdef XP_WIN
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// For plugins, this is done in PluginProcessChild::Init, as we need to
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// avoid it for unsupported plugins. See PluginProcessChild::Init for
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// the details.
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if (XRE_GetProcessType() != GeckoProcessType_Plugin) {
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mozilla::SanitizeEnvironmentVariables();
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SetDllDirectory(L"");
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}
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#endif
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nsAutoPtr<mozilla::gmp::GMPLoader> loader;
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#if !defined(MOZ_WIDGET_ANDROID) && !defined(MOZ_WIDGET_GONK)
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// On desktop, the GMPLoader lives in plugin-container, so that its
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// code can be covered by an EME/GMP vendor's voucher.
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nsAutoPtr<mozilla::gmp::SandboxStarter> starter(MakeSandboxStarter());
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if (XRE_GetProcessType() == GeckoProcessType_GMPlugin) {
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loader = mozilla::gmp::CreateGMPLoader(starter);
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}
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#endif
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nsresult rv = XRE_InitChildProcess(argc, argv, loader);
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NS_ENSURE_SUCCESS(rv, 1);
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return 0;
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}
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