Imported Upstream version 5.18.0.142

Former-commit-id: 7467d4b717762eeaf652d77f1486dd11ffb1ff1f

mcs/class/System/System.Net.NetworkInformation/Win32IPv4InterfaceProperties.cs

@@ -0,0 +1,96 @@
+//
+// System.Net.NetworkInformation.IPv4InterfaceProperties
+//
+// Authors:
+//	Gonzalo Paniagua Javier (gonzalo@novell.com)
+//	Atsushi Enomoto (atsushi@ximian.com)
+//      Marek Habersack (mhabersack@novell.com)
+//
+// Copyright (c) 2006-2007 Novell, Inc. (http://www.novell.com)
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+#if WIN_PLATFORM
+using System.Runtime.InteropServices;
+
+namespace System.Net.NetworkInformation {
+	sealed class Win32IPv4InterfaceProperties : IPv4InterfaceProperties
+	{
+		[DllImport ("iphlpapi.dll")]
+		static extern int GetPerAdapterInfo (int IfIndex, Win32_IP_PER_ADAPTER_INFO pPerAdapterInfo, ref int pOutBufLen);
+
+		Win32_IP_ADAPTER_INFO ainfo;
+		Win32_IP_PER_ADAPTER_INFO painfo;
+		Win32_MIB_IFROW mib;
+
+		public Win32IPv4InterfaceProperties (Win32_IP_ADAPTER_INFO ainfo, Win32_MIB_IFROW mib)
+		{
+			this.ainfo = ainfo;
+			this.mib = mib;
+
+			// get per-adapter info.
+			int size = 0;
+			GetPerAdapterInfo (mib.Index, null, ref size);
+			painfo = new Win32_IP_PER_ADAPTER_INFO ();
+			int ret = GetPerAdapterInfo (mib.Index, painfo, ref size);
+			if (ret != 0)
+				throw new NetworkInformationException (ret);
+		}
+
+		public override int Index {
+			get { return mib.Index; }
+		}
+
+		public override bool IsAutomaticPrivateAddressingActive {
+			get { return painfo.AutoconfigActive != 0; }
+		}
+
+		public override bool IsAutomaticPrivateAddressingEnabled {
+			get { return painfo.AutoconfigEnabled != 0; }
+		}
+
+		public override bool IsDhcpEnabled {
+			get { return ainfo.DhcpEnabled != 0; }
+		}
+
+		public override bool IsForwardingEnabled {
+			// Is it the right answer? In Vista there is MIB_IPINTERFACEROW.ForwardingEnabled, but not in former versions.
+			get { return Win32NetworkInterface.FixedInfo.EnableRouting != 0; }
+		}
+
+		public override int Mtu {
+			get { return mib.Mtu; }
+		}
+
+		public override bool UsesWins {
+			get { return ainfo.HaveWins; }
+		}
+	}
+
+	[StructLayout (LayoutKind.Sequential)]
+	class Win32_IP_PER_ADAPTER_INFO
+	{
+		public uint AutoconfigEnabled;
+		public uint AutoconfigActive;
+		public IntPtr CurrentDnsServer; // to Win32_IP_ADDR_STRING
+		public Win32_IP_ADDR_STRING DnsServerList;
+	}
+}
+#endif