2 // System.Net.NetworkInformation.IPv4InterfaceProperties
5 // Gonzalo Paniagua Javier (gonzalo@novell.com)
6 // Atsushi Enomoto (atsushi@ximian.com)
8 // Copyright (c) 2006-2007 Novell, Inc. (http://www.novell.com)
10 // Permission is hereby granted, free of charge, to any person obtaining
11 // a copy of this software and associated documentation files (the
12 // "Software"), to deal in the Software without restriction, including
13 // without limitation the rights to use, copy, modify, merge, publish,
14 // distribute, sublicense, and/or sell copies of the Software, and to
15 // permit persons to whom the Software is furnished to do so, subject to
16 // the following conditions:
18 // The above copyright notice and this permission notice shall be
19 // included in all copies or substantial portions of the Software.
21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
30 using System.Runtime.InteropServices;
32 namespace System.Net.NetworkInformation {
33 public abstract class IPv4InterfaceProperties {
34 protected IPv4InterfaceProperties ()
38 public abstract int Index { get; }
39 public abstract bool IsAutomaticPrivateAddressingActive { get; }
40 public abstract bool IsAutomaticPrivateAddressingEnabled { get; }
41 public abstract bool IsDhcpEnabled { get; }
42 public abstract bool IsForwardingEnabled { get; }
43 public abstract int Mtu { get; }
44 public abstract bool UsesWins { get; }
47 class Win32IPv4InterfaceProperties : IPv4InterfaceProperties
49 [DllImport ("iphlpapi.dll")]
50 static extern int GetPerAdapterInfo (int IfIndex, Win32_IP_PER_ADAPTER_INFO pPerAdapterInfo, ref int pOutBufLen);
52 Win32_IP_ADAPTER_INFO ainfo;
53 Win32_IP_PER_ADAPTER_INFO painfo;
56 public Win32IPv4InterfaceProperties (Win32_IP_ADAPTER_INFO ainfo, Win32_MIB_IFROW mib)
61 // get per-adapter info.
63 GetPerAdapterInfo (mib.Index, null, ref size);
64 painfo = new Win32_IP_PER_ADAPTER_INFO ();
65 int ret = GetPerAdapterInfo (mib.Index, painfo, ref size);
67 throw new NetworkInformationException (ret);
70 public override int Index {
71 get { return mib.Index; }
74 public override bool IsAutomaticPrivateAddressingActive {
75 get { return painfo.AutoconfigActive != 0; }
78 public override bool IsAutomaticPrivateAddressingEnabled {
79 get { return painfo.AutoconfigEnabled != 0; }
82 public override bool IsDhcpEnabled {
83 get { return ainfo.DhcpEnabled != 0; }
86 public override bool IsForwardingEnabled {
87 // Is it the right answer? In Vista there is MIB_IPINTERFACEROW.ForwardingEnabled, but not in former versions.
88 get { return Win32_FIXED_INFO.Instance.EnableRouting != 0; }
91 public override int Mtu {
92 get { return mib.Mtu; }
95 public override bool UsesWins {
96 get { return ainfo.HaveWins; }
100 [StructLayout (LayoutKind.Sequential)]
101 class Win32_IP_PER_ADAPTER_INFO
103 public uint AutoconfigEnabled;
104 public uint AutoconfigActive;
105 public IntPtr CurrentDnsServer; // to Win32_IP_ADDR_STRING
106 public Win32_IP_ADDR_STRING DnsServerList;