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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/renderer/renderer_main_platform_delegate.h"
#include "base/android/build_info.h"
#include "base/cpu_affinity_posix.h"
#include "base/metrics/histogram_macros.h"
#include "base/trace_event/trace_event.h"
#include "content/public/common/content_features.h"
#include "content/renderer/seccomp_sandbox_status_android.h"
#include "sandbox/linux/seccomp-bpf-helpers/seccomp_starter_android.h"
#include "sandbox/sandbox_buildflags.h"
#if BUILDFLAG(USE_SECCOMP_BPF)
#include "sandbox/linux/seccomp-bpf-helpers/baseline_policy_android.h"
#endif
namespace content {
RendererMainPlatformDelegate::RendererMainPlatformDelegate(
const MainFunctionParams& parameters) {}
RendererMainPlatformDelegate::~RendererMainPlatformDelegate() {
}
void RendererMainPlatformDelegate::PlatformInitialize() {
}
void RendererMainPlatformDelegate::PlatformUninitialize() {
}
bool RendererMainPlatformDelegate::EnableSandbox() {
TRACE_EVENT0("startup", "RendererMainPlatformDelegate::EnableSandbox");
auto* info = base::android::BuildInfo::GetInstance();
sandbox::SeccompStarterAndroid starter(info->sdk_int());
// The policy compiler is only available if USE_SECCOMP_BPF is enabled.
#if BUILDFLAG(USE_SECCOMP_BPF)
sandbox::BaselinePolicyAndroid::RuntimeOptions options(
starter.GetDefaultBaselineOptions());
options.allow_sched_affinity =
base::FeatureList::IsEnabled(features::kBigLittleScheduling);
starter.set_policy(std::make_unique<sandbox::BaselinePolicyAndroid>(options));
#endif
starter.StartSandbox();
SetSeccompSandboxStatus(starter.status());
UMA_HISTOGRAM_ENUMERATION("Android.SeccompStatus.RendererSandbox",
starter.status(),
sandbox::SeccompSandboxStatus::STATUS_MAX);
return true;
}
} // namespace content
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