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RtlFeatureManager.cs
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RtlFeatureManager.cs
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/*
ViVe - Vibranium feature configuration library
Copyright (C) 2019 @thebookisclosed
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
using Microsoft.Win32;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
namespace Albacore.ViVe
{
public static class RtlFeatureManager
{
public static List<FeatureConfiguration> QueryAllFeatureConfigurations()
{
ulong dummy = 0;
return QueryAllFeatureConfigurations(FeatureConfigurationSection.Runtime, ref dummy);
}
public static List<FeatureConfiguration> QueryAllFeatureConfigurations(FeatureConfigurationSection section)
{
ulong dummy = 0;
return QueryAllFeatureConfigurations(section, ref dummy);
}
public static List<FeatureConfiguration> QueryAllFeatureConfigurations(FeatureConfigurationSection section, ref ulong changeStamp)
{
int featureCount = 0;
NativeMethods.RtlQueryAllFeatureConfigurations(section, ref changeStamp, IntPtr.Zero, ref featureCount);
if (featureCount == 0)
return null;
// One feature config is 12 bytes long
IntPtr rawBuf = Marshal.AllocHGlobal(featureCount * 12);
int hRes = NativeMethods.RtlQueryAllFeatureConfigurations(section, ref changeStamp, rawBuf, ref featureCount);
if (hRes != 0)
{
Marshal.FreeHGlobal(rawBuf);
return null;
}
byte[] buf = new byte[featureCount * 12];
Marshal.Copy(rawBuf, buf, 0, buf.Length);
Marshal.FreeHGlobal(rawBuf);
var allFeatureConfigs = new List<FeatureConfiguration>();
using (MemoryStream ms = new MemoryStream(buf, false))
{
using (BinaryReader br = new BinaryReader(ms))
{
for (int i = 0; i < featureCount; i++)
{
uint featureId = br.ReadUInt32();
int compactState = br.ReadInt32();
allFeatureConfigs.Add(new FeatureConfiguration() {
FeatureId = featureId,
Group = compactState & 0xF,
EnabledState = (FeatureEnabledState)((compactState & 0x30) >> 4),
EnabledStateOptions = (compactState & 0x40) >> 6,
Variant = (compactState & 0x3F00) >> 8,
VariantPayloadKind = (compactState & 0xC000) >> 14,
VariantPayload = br.ReadInt32() });
}
}
}
return allFeatureConfigs;
}
public static FeatureConfiguration QueryFeatureConfiguration(uint featureId)
{
ulong dummy = 0;
return QueryFeatureConfiguration(featureId, FeatureConfigurationSection.Runtime, ref dummy);
}
public static FeatureConfiguration QueryFeatureConfiguration(uint featureId, FeatureConfigurationSection section)
{
ulong dummy = 0;
return QueryFeatureConfiguration(featureId, section, ref dummy);
}
public static FeatureConfiguration QueryFeatureConfiguration(uint featureId, FeatureConfigurationSection section, ref ulong changeStamp)
{
// One feature config is 12 bytes long
IntPtr rawBuf = Marshal.AllocHGlobal(12);
int hRes = NativeMethods.RtlQueryFeatureConfiguration(featureId, section, ref changeStamp, rawBuf);
if (hRes != 0)
{
Marshal.FreeHGlobal(rawBuf);
return null;
}
byte[] buf = new byte[12];
Marshal.Copy(rawBuf, buf, 0, buf.Length);
Marshal.FreeHGlobal(rawBuf);
int compactState = BitConverter.ToInt32(buf, 4);
return new FeatureConfiguration() {
FeatureId = BitConverter.ToUInt32(buf, 0),
Group = compactState & 0xF,
EnabledState = (FeatureEnabledState)((compactState & 0x30) >> 4),
EnabledStateOptions = (compactState & 0x40) >> 6,
Variant = (compactState & 0x3F00) >> 8,
VariantPayloadKind = (compactState & 0xC000) >> 14,
VariantPayload = BitConverter.ToInt32(buf, 8) };
}
public static ulong QueryFeatureConfigurationChangeStamp()
{
return NativeMethods.RtlQueryFeatureConfigurationChangeStamp();
}
public static int SetLiveFeatureConfigurations(List<FeatureConfiguration> configurations)
{
ulong dummy = 0;
return SetLiveFeatureConfigurations(configurations, FeatureConfigurationSection.Runtime, ref dummy);
}
public static int SetLiveFeatureConfigurations(List<FeatureConfiguration> configurations, FeatureConfigurationSection section)
{
ulong dummy = 0;
return SetLiveFeatureConfigurations(configurations, section, ref dummy);
}
public static int SetLiveFeatureConfigurations(List<FeatureConfiguration> configurations, FeatureConfigurationSection section, ref ulong changeStamp)
{
return NativeMethods.RtlSetFeatureConfigurations(ref changeStamp, section, RtlDataHelpers.SerializeFeatureConfigurations(configurations), configurations.Count);
}
public static IntPtr RegisterFeatureConfigurationChangeNotification(FeatureConfigurationChangeCallback callback)
{
return RegisterFeatureConfigurationChangeNotification(callback, IntPtr.Zero);
}
public static IntPtr RegisterFeatureConfigurationChangeNotification(FeatureConfigurationChangeCallback callback, IntPtr context)
{
NativeMethods.RtlRegisterFeatureConfigurationChangeNotification(callback, context, IntPtr.Zero, out IntPtr sub);
return sub;
}
public static int UnregisterFeatureConfigurationChangeNotification(IntPtr notification)
{
return NativeMethods.RtlUnregisterFeatureConfigurationChangeNotification(notification);
}
public static List<FeatureUsageSubscription> QueryFeatureUsageSubscriptions()
{
int subCount = 0;
NativeMethods.RtlQueryFeatureUsageNotificationSubscriptions(IntPtr.Zero, ref subCount);
if (subCount == 0)
return null;
// One feature subscription is 16 bytes long
IntPtr rawBuf = Marshal.AllocHGlobal(subCount * 16);
int hRes = NativeMethods.RtlQueryFeatureUsageNotificationSubscriptions(rawBuf, ref subCount);
if (hRes != 0)
return null;
byte[] buf = new byte[subCount * 16];
Marshal.Copy(rawBuf, buf, 0, buf.Length);
Marshal.FreeHGlobal(rawBuf);
var allSubscriptions = new List<FeatureUsageSubscription>();
using (MemoryStream ms = new MemoryStream(buf, false))
{
using (BinaryReader br = new BinaryReader(ms))
{
for (int i = 0; i < subCount; i++)
{
allSubscriptions.Add(new FeatureUsageSubscription() {
FeatureId = br.ReadUInt32(),
ReportingKind = br.ReadUInt16(),
ReportingOptions = br.ReadUInt16(),
ReportingTarget = br.ReadUInt64()
});
}
}
}
return allSubscriptions;
}
public static int AddLiveFeatureUsageSubscriptions(List<FeatureUsageSubscription> subscriptions)
{
return NativeMethods.RtlSubscribeForFeatureUsageNotification(RtlDataHelpers.SerializeFeatureUsageSubscriptions(subscriptions), subscriptions.Count);
}
public static int RemoveLiveFeatureUsageSubscriptions(List<FeatureUsageSubscription> subscriptions)
{
return NativeMethods.RtlUnsubscribeFromFeatureUsageNotifications(RtlDataHelpers.SerializeFeatureUsageSubscriptions(subscriptions), subscriptions.Count);
}
public static int NotifyFeatureUsage(FeatureUsageReport report)
{
return NativeMethods.RtlNotifyFeatureUsage(RtlDataHelpers.SerializeFeatureUsageReport(report));
}
public static int SetBootFeatureConfigurationState(ref int state)
{
return NativeMethods.RtlSetSystemBootStatus(17, ref state, sizeof(int), IntPtr.Zero);
}
public static int GetBootFeatureConfigurationState(ref int state)
{
return NativeMethods.RtlGetSystemBootStatus(17, ref state, sizeof(int), IntPtr.Zero);
}
public static bool SetBootFeatureConfigurations(List<FeatureConfiguration> configurations)
{
try
{
foreach (var config in configurations)
{
uint obfuscatedId = RtlDataHelpers.GetObfuscatedFeatureId(config.FeatureId);
var obfuscatedKey = $@"SYSTEM\CurrentControlSet\Control\FeatureManagement\Overrides\{config.Group}\{obfuscatedId}";
if (config.Action == FeatureConfigurationAction.Delete)
Registry.LocalMachine.DeleteSubKeyTree(obfuscatedKey, false);
else
{
using (var rKey = Registry.LocalMachine.CreateSubKey(obfuscatedKey))
{
if ((config.Action & FeatureConfigurationAction.UpdateEnabledState) == FeatureConfigurationAction.UpdateEnabledState)
{
rKey.SetValue("EnabledState", (int)config.EnabledState);
rKey.SetValue("EnabledStateOptions", config.EnabledStateOptions);
}
if ((config.Action & FeatureConfigurationAction.UpdateVariant) == FeatureConfigurationAction.UpdateVariant)
{
rKey.SetValue("Variant", config.Variant);
rKey.SetValue("VariantPayload", config.VariantPayload);
rKey.SetValue("VariantPayloadKind", config.VariantPayloadKind);
}
}
}
}
return true;
} catch { return false; }
}
public static bool RemoveBootFeatureConfigurations(List<FeatureConfiguration> configurations)
{
try
{
foreach (var config in configurations)
{
uint obfuscatedId = RtlDataHelpers.GetObfuscatedFeatureId(config.FeatureId);
Registry.LocalMachine.DeleteSubKeyTree($@"SYSTEM\CurrentControlSet\Control\FeatureManagement\Overrides\{config.Group}\{obfuscatedId}", false);
}
return true;
}
catch { return false; }
}
public static bool AddBootFeatureUsageSubscriptions(List<FeatureUsageSubscription> subscriptions)
{
try
{
foreach (var sub in subscriptions)
{
uint obfuscatedId = RtlDataHelpers.GetObfuscatedFeatureId(sub.FeatureId);
using (var rKey = Registry.LocalMachine.CreateSubKey($@"SYSTEM\CurrentControlSet\Control\FeatureManagement\UsageSubscriptions\{obfuscatedId}\{{{Guid.NewGuid()}}}"))
{
rKey.SetValue("ReportingKind", (int)sub.ReportingKind);
rKey.SetValue("ReportingOptions", (int)sub.ReportingOptions);
rKey.SetValue("ReportingTarget", BitConverter.GetBytes(sub.ReportingTarget));
}
}
return true;
}
catch { return false; }
}
public static bool RemoveBootFeatureUsageSubscriptions(List<FeatureUsageSubscription> subscriptions)
{
try
{
string[] bootSubs;
using (var rKey = Registry.LocalMachine.OpenSubKey(@"SYSTEM\CurrentControlSet\Control\FeatureManagement\UsageSubscriptions"))
bootSubs = rKey.GetSubKeyNames();
foreach (var sub in subscriptions)
{
var obfuscatedKey = RtlDataHelpers.GetObfuscatedFeatureId(sub.FeatureId).ToString();
if (bootSubs.Contains(obfuscatedKey))
{
bool isEmpty = false;
obfuscatedKey = @"SYSTEM\CurrentControlSet\Control\FeatureManagement\UsageSubscriptions\" + obfuscatedKey;
using (var sKey = Registry.LocalMachine.OpenSubKey(obfuscatedKey, true))
{
foreach (var subGuid in sKey.GetSubKeyNames())
{
bool toRemove = false;
using (var gKey = sKey.OpenSubKey(subGuid))
{
if ((int)gKey.GetValue("ReportingKind") == sub.ReportingKind &&
(int)gKey.GetValue("ReportingOptions") == sub.ReportingOptions &&
BitConverter.ToUInt64((byte[])gKey.GetValue("ReportingTarget"), 0) == sub.ReportingTarget)
toRemove = true;
}
if (toRemove)
sKey.DeleteSubKeyTree(subGuid, false);
}
isEmpty = sKey.SubKeyCount == 0;
}
if (isEmpty)
Registry.LocalMachine.DeleteSubKeyTree(obfuscatedKey, false);
}
}
return true;
}
catch { return false; }
}
}
}