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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/gwp_asan/client/gwp_asan_features.h"
#include "build/build_config.h"
namespace gwp_asan::internal {
#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_APPLE) || BUILDFLAG(IS_LINUX) || \
BUILDFLAG(IS_CHROMEOS) || \
(BUILDFLAG(IS_ANDROID) && defined(ARCH_CPU_64_BITS))
constexpr base::FeatureState kDefaultEnabled = base::FEATURE_ENABLED_BY_DEFAULT;
#else
constexpr base::FeatureState kDefaultEnabled =
base::FEATURE_DISABLED_BY_DEFAULT;
#endif
BASE_FEATURE(kGwpAsanMalloc, "GwpAsanMalloc", kDefaultEnabled);
BASE_FEATURE(kGwpAsanPartitionAlloc, "GwpAsanPartitionAlloc", kDefaultEnabled);
BASE_FEATURE(kExtremeLightweightUAFDetector,
"ExtremeLightweightUAFDetector",
base::FEATURE_DISABLED_BY_DEFAULT);
const base::FeatureParam<int> kExtremeLightweightUAFDetectorSamplingFrequency{
&kExtremeLightweightUAFDetector, "sampling_frequency",
1000}; // Quarantine once per 1000 calls to `free`.
const base::FeatureParam<int>
kExtremeLightweightUAFDetectorQuarantineCapacityForSmallObjectsInBytes{
&kExtremeLightweightUAFDetector,
"quarantine_capacity_for_small_objects_in_bytes",
1 * 1024 * 1024 - 100 * 1024}; // 900 KiB for small objects.
const base::FeatureParam<int>
kExtremeLightweightUAFDetectorQuarantineCapacityForLargeObjectsInBytes{
&kExtremeLightweightUAFDetector,
"quarantine_capacity_for_large_objects_in_bytes",
100 * 1024}; // 100 KiB for large objects.
// Small objects: size <= 1 KiB
// Large objects: size > 1 KiB
const base::FeatureParam<int>
kExtremeLightweightUAFDetectorObjectSizeThresholdInBytes{
&kExtremeLightweightUAFDetector, "object_size_threshold_in_bytes",
1 * 1024};
constexpr base::FeatureParam<ExtremeLightweightUAFDetectorTargetProcesses>::
Option kExtremeLightweightUAFDetectorTargetProcessesOptions[] = {
{ExtremeLightweightUAFDetectorTargetProcesses::kAllProcesses, "all"},
{ExtremeLightweightUAFDetectorTargetProcesses::kBrowserProcessOnly,
"browser_only"},
{ExtremeLightweightUAFDetectorTargetProcesses::kNonRendererProcesses,
"non_renderer"},
};
const base::FeatureParam<ExtremeLightweightUAFDetectorTargetProcesses>
kExtremeLightweightUAFDetectorTargetProcesses{
&kExtremeLightweightUAFDetector,
"target_processes",
ExtremeLightweightUAFDetectorTargetProcesses::kAllProcesses,
&kExtremeLightweightUAFDetectorTargetProcessesOptions,
};
} // namespace gwp_asan::internal
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