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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Runtime.InteropServices;
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using System.Text;
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using System.Threading.Tasks;
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namespace MediaBrowser.ServerApplication.Native
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{
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/// <summary>
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/// http://blogs.msdn.com/b/fiddler/archive/2011/12/10/fiddler-windows-8-apps-enable-LoopUtil-network-isolation-exemption.aspx
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/// </summary>
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public class LoopUtil
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{
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//http://msdn.microsoft.com/en-us/library/windows/desktop/aa379595(v=vs.85).aspx
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[StructLayout(LayoutKind.Sequential)]
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internal struct SID_AND_ATTRIBUTES
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{
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public IntPtr Sid;
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public uint Attributes;
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}
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[StructLayoutAttribute(LayoutKind.Sequential)]
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internal struct INET_FIREWALL_AC_CAPABILITIES
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{
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public uint count;
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public IntPtr capabilities; //SID_AND_ATTRIBUTES
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}
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[StructLayoutAttribute(LayoutKind.Sequential)]
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internal struct INET_FIREWALL_AC_BINARIES
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{
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public uint count;
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public IntPtr binaries;
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}
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[StructLayoutAttribute(LayoutKind.Sequential)]
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internal struct INET_FIREWALL_APP_CONTAINER
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{
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internal IntPtr appContainerSid;
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internal IntPtr userSid;
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[MarshalAs(UnmanagedType.LPWStr)]
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public string appContainerName;
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[MarshalAs(UnmanagedType.LPWStr)]
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public string displayName;
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[MarshalAs(UnmanagedType.LPWStr)]
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public string description;
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internal INET_FIREWALL_AC_CAPABILITIES capabilities;
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internal INET_FIREWALL_AC_BINARIES binaries;
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[MarshalAs(UnmanagedType.LPWStr)]
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public string workingDirectory;
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[MarshalAs(UnmanagedType.LPWStr)]
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public string packageFullName;
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}
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// Call this API to free the memory returned by the Enumeration API
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[DllImport("FirewallAPI.dll")]
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internal static extern void NetworkIsolationFreeAppContainers(IntPtr pACs);
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// Call this API to load the current list of LoopUtil-enabled AppContainers
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[DllImport("FirewallAPI.dll")]
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internal static extern uint NetworkIsolationGetAppContainerConfig(out uint pdwCntACs, out IntPtr appContainerSids);
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// Call this API to set the LoopUtil-exemption list
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[DllImport("FirewallAPI.dll")]
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private static extern uint NetworkIsolationSetAppContainerConfig(uint pdwCntACs, SID_AND_ATTRIBUTES[] appContainerSids);
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// Use this API to convert a string SID into an actual SID
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[DllImport("advapi32.dll", SetLastError = true)]
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internal static extern bool ConvertStringSidToSid(string strSid, out IntPtr pSid);
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[DllImport("advapi32", CharSet = CharSet.Auto, SetLastError = true)]
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static extern bool ConvertSidToStringSid(
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[MarshalAs(UnmanagedType.LPArray)] byte[] pSID,
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out IntPtr ptrSid);
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[DllImport("advapi32", CharSet = CharSet.Auto, SetLastError = true)]
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static extern bool ConvertSidToStringSid(IntPtr pSid, out string strSid);
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// Use this API to convert a string reference (e.g. "@{blah.pri?ms-resource://whatever}") into a plain string
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[DllImport("shlwapi.dll", CharSet = CharSet.Unicode, ExactSpelling = true)]
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internal static extern int SHLoadIndirectString(string pszSource, StringBuilder pszOutBuf);
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// Call this API to enumerate all of the AppContainers on the system
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[DllImport("FirewallAPI.dll")]
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internal static extern uint NetworkIsolationEnumAppContainers(uint Flags, out uint pdwCntPublicACs, out IntPtr ppACs);
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// DWORD NetworkIsolationEnumAppContainers(
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// _In_ DWORD Flags,
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// _Out_ DWORD *pdwNumPublicAppCs,
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// _Out_ PINET_FIREWALL_APP_CONTAINER *ppPublicAppCs
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//);
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//http://msdn.microsoft.com/en-gb/library/windows/desktop/hh968116.aspx
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enum NETISO_FLAG
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{
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NETISO_FLAG_FORCE_COMPUTE_BINARIES = 0x1,
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NETISO_FLAG_MAX = 0x2
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}
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public class AppContainer
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{
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public String appContainerName { get; set; }
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public String displayName { get; set; }
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public String workingDirectory { get; set; }
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public String StringSid { get; set; }
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public List<uint> capabilities { get; set; }
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public bool LoopUtil { get; set; }
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public AppContainer(String _appContainerName, String _displayName, String _workingDirectory, IntPtr _sid)
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{
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this.appContainerName = _appContainerName;
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this.displayName = _displayName;
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this.workingDirectory = _workingDirectory;
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String tempSid;
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ConvertSidToStringSid(_sid, out tempSid);
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this.StringSid = tempSid;
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}
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}
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internal List<LoopUtil.INET_FIREWALL_APP_CONTAINER> _AppList;
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internal List<LoopUtil.SID_AND_ATTRIBUTES> _AppListConfig;
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public List<AppContainer> Apps = new List<AppContainer>();
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internal IntPtr _pACs;
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public LoopUtil()
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{
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LoadApps();
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}
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public void LoadApps()
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{
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Apps.Clear();
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_pACs = IntPtr.Zero;
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//Full List of Apps
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_AppList = PI_NetworkIsolationEnumAppContainers();
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//List of Apps that have LoopUtil enabled.
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_AppListConfig = PI_NetworkIsolationGetAppContainerConfig();
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foreach (var PI_app in _AppList)
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{
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AppContainer app = new AppContainer(PI_app.appContainerName, PI_app.displayName, PI_app.workingDirectory, PI_app.appContainerSid);
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var app_capabilities = LoopUtil.getCapabilites(PI_app.capabilities);
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if (app_capabilities.Count > 0)
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{
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//var sid = new SecurityIdentifier(app_capabilities[0], 0);
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IntPtr arrayValue = IntPtr.Zero;
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//var b = LoopUtil.ConvertStringSidToSid(app_capabilities[0].Sid, out arrayValue);
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//string mysid;
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//var b = LoopUtil.ConvertSidToStringSid(app_capabilities[0].Sid, out mysid);
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}
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app.LoopUtil = CheckLoopback(PI_app.appContainerSid);
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Apps.Add(app);
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}
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}
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private bool CheckLoopback(IntPtr intPtr)
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{
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foreach (SID_AND_ATTRIBUTES item in _AppListConfig)
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{
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string left, right;
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ConvertSidToStringSid(item.Sid, out left);
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ConvertSidToStringSid(intPtr, out right);
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if (left == right)
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{
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return true;
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}
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}
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return false;
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}
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private bool CreateExcemptions(string appName)
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{
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var hasChanges = false;
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foreach (var app in Apps)
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{
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if ((app.appContainerName ?? string.Empty).IndexOf(appName, StringComparison.OrdinalIgnoreCase) != -1 ||
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(app.displayName ?? string.Empty).IndexOf(appName, StringComparison.OrdinalIgnoreCase) != -1)
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{
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if (!app.LoopUtil)
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{
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app.LoopUtil = true;
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hasChanges = true;
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}
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}
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}
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return hasChanges;
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}
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public static void Run(string appName)
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{
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var util = new LoopUtil();
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util.LoadApps();
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var hasChanges = util.CreateExcemptions(appName);
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if (hasChanges)
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{
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util.SaveLoopbackState();
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}
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util.SaveLoopbackState();
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}
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private static List<SID_AND_ATTRIBUTES> getCapabilites(INET_FIREWALL_AC_CAPABILITIES cap)
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{
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List<SID_AND_ATTRIBUTES> mycap = new List<SID_AND_ATTRIBUTES>();
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IntPtr arrayValue = cap.capabilities;
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var structSize = Marshal.SizeOf(typeof(SID_AND_ATTRIBUTES));
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for (var i = 0; i < cap.count; i++)
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{
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var cur = (SID_AND_ATTRIBUTES)Marshal.PtrToStructure(arrayValue, typeof(SID_AND_ATTRIBUTES));
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mycap.Add(cur);
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arrayValue = new IntPtr((long)(arrayValue) + (long)(structSize));
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}
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return mycap;
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}
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private static List<SID_AND_ATTRIBUTES> getContainerSID(INET_FIREWALL_AC_CAPABILITIES cap)
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{
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List<SID_AND_ATTRIBUTES> mycap = new List<SID_AND_ATTRIBUTES>();
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IntPtr arrayValue = cap.capabilities;
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var structSize = Marshal.SizeOf(typeof(SID_AND_ATTRIBUTES));
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for (var i = 0; i < cap.count; i++)
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{
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var cur = (SID_AND_ATTRIBUTES)Marshal.PtrToStructure(arrayValue, typeof(SID_AND_ATTRIBUTES));
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mycap.Add(cur);
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arrayValue = new IntPtr((long)(arrayValue) + (long)(structSize));
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}
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return mycap;
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}
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private static List<SID_AND_ATTRIBUTES> PI_NetworkIsolationGetAppContainerConfig()
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{
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IntPtr arrayValue = IntPtr.Zero;
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uint size = 0;
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var list = new List<SID_AND_ATTRIBUTES>();
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// Pin down variables
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GCHandle handle_pdwCntPublicACs = GCHandle.Alloc(size, GCHandleType.Pinned);
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GCHandle handle_ppACs = GCHandle.Alloc(arrayValue, GCHandleType.Pinned);
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uint retval = NetworkIsolationGetAppContainerConfig(out size, out arrayValue);
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var structSize = Marshal.SizeOf(typeof(SID_AND_ATTRIBUTES));
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for (var i = 0; i < size; i++)
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{
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var cur = (SID_AND_ATTRIBUTES)Marshal.PtrToStructure(arrayValue, typeof(SID_AND_ATTRIBUTES));
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list.Add(cur);
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arrayValue = new IntPtr((long)(arrayValue) + (long)(structSize));
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}
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//release pinned variables.
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handle_pdwCntPublicACs.Free();
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handle_ppACs.Free();
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return list;
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}
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private List<INET_FIREWALL_APP_CONTAINER> PI_NetworkIsolationEnumAppContainers()
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{
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IntPtr arrayValue = IntPtr.Zero;
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uint size = 0;
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var list = new List<INET_FIREWALL_APP_CONTAINER>();
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// Pin down variables
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GCHandle handle_pdwCntPublicACs = GCHandle.Alloc(size, GCHandleType.Pinned);
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GCHandle handle_ppACs = GCHandle.Alloc(arrayValue, GCHandleType.Pinned);
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//uint retval2 = NetworkIsolationGetAppContainerConfig( out size, out arrayValue);
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uint retval = NetworkIsolationEnumAppContainers((Int32)NETISO_FLAG.NETISO_FLAG_MAX, out size, out arrayValue);
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_pACs = arrayValue; //store the pointer so it can be freed when we close the form
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var structSize = Marshal.SizeOf(typeof(INET_FIREWALL_APP_CONTAINER));
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for (var i = 0; i < size; i++)
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{
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var cur = (INET_FIREWALL_APP_CONTAINER)Marshal.PtrToStructure(arrayValue, typeof(INET_FIREWALL_APP_CONTAINER));
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list.Add(cur);
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arrayValue = new IntPtr((long)(arrayValue) + (long)(structSize));
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}
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//release pinned variables.
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handle_pdwCntPublicACs.Free();
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handle_ppACs.Free();
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return list;
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}
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public bool SaveLoopbackState()
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{
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var countEnabled = CountEnabledLoopUtil();
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SID_AND_ATTRIBUTES[] arr = new SID_AND_ATTRIBUTES[countEnabled];
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int count = 0;
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for (int i = 0; i < Apps.Count; i++)
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{
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if (Apps[i].LoopUtil)
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{
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arr[count].Attributes = 0;
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//TO DO:
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IntPtr ptr;
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ConvertStringSidToSid(Apps[i].StringSid, out ptr);
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arr[count].Sid = ptr;
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count++;
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}
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}
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if (NetworkIsolationSetAppContainerConfig((uint)countEnabled, arr) == 0)
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{
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return true;
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}
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else
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{ return false; }
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}
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private int CountEnabledLoopUtil()
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{
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var count = 0;
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for (int i = 0; i < Apps.Count; i++)
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{
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if (Apps[i].LoopUtil)
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{
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count++;
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}
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}
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return count;
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}
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public void FreeResources()
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{
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NetworkIsolationFreeAppContainers(_pACs);
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}
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}
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}
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Luke
8 years ago
committed by
GitHub