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