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

   1 //
   2 // System.Net.NetworkInformation.UnicastIPAddressInformation
   3 //
   4 // Authors:
   5 //      Gonzalo Paniagua Javier (gonzalo@novell.com)
   6 //      Atsushi Enomoto (atsushi@ximian.com)
   7 //      Eric Butler (eric@extremeboredom.net)
   8 //
   9 // Copyright (c) 2006-2007 Novell, Inc. (http://www.novell.com)
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30 using System;
  31 using System.Runtime.InteropServices;
  32 using System.Net.Sockets;
  33
  34 namespace System.Net.NetworkInformation {
  35         class Win32UnicastIPAddressInformation : UnicastIPAddressInformation
  36         {
  37                 int if_index;
  38                 Win32_IP_ADAPTER_UNICAST_ADDRESS info;
  39
  40                 public Win32UnicastIPAddressInformation (int ifIndex, Win32_IP_ADAPTER_UNICAST_ADDRESS info)
  41                 {
  42                         this.if_index = ifIndex;
  43                         this.info = info;
  44                 }
  45
  46                 public override IPAddress Address {
  47                         get { return info.Address.GetIPAddress (); }
  48                 }
  49
  50                 public override bool IsDnsEligible {
  51                         get { return info.LengthFlags.IsDnsEligible; }
  52                 }
  53
  54                 public override bool IsTransient {
  55                         get { return info.LengthFlags.IsTransient; }
  56                 }
  57
  58                 // UnicastIPAddressInformation members
  59
  60                 public override long AddressPreferredLifetime {
  61                         get { return info.PreferredLifetime; }
  62                 }
  63
  64                 public override long AddressValidLifetime {
  65                         get { return info.ValidLifetime; }
  66                 }
  67
  68                 public override long DhcpLeaseLifetime {
  69                         get { return info.LeaseLifetime; }
  70                 }
  71
  72                 public override DuplicateAddressDetectionState DuplicateAddressDetectionState {
  73                         get { return info.DadState; }
  74                 }
  75
  76                 public override IPAddress IPv4Mask {
  77                         get {
  78                                 Win32_IP_ADAPTER_INFO ai = Win32NetworkInterface2.GetAdapterInfoByIndex (if_index);
  79                                 if (ai == null)
  80                                         throw new Exception ("huh? " + if_index);
  81                                 if (this.Address == null)
  82                                         return null;
  83                                 string expected = this.Address.ToString ();
  84                                 unsafe {
  85                                         Win32_IP_ADDR_STRING p = ai.IpAddressList;
  86                                         while (true) {
  87                                                 if (p.IpAddress == expected)
  88                                                         return IPAddress.Parse (p.IpMask);
  89                                                 if (p.Next == IntPtr.Zero)
  90                                                         break;
  91                                                 p = (Win32_IP_ADDR_STRING) Marshal.PtrToStructure (p.Next, typeof (Win32_IP_ADDR_STRING));
  92                                         }
  93
  94                                         // Or whatever it should be...
  95                                         return null;
  96                                 }
  97                         }
  98                 }
  99
 100                 public override PrefixOrigin PrefixOrigin {
 101                         get { return info.PrefixOrigin; }
 102                 }
 103
 104                 public override SuffixOrigin SuffixOrigin {
 105                         get { return info.SuffixOrigin; }
 106                 }
 107         }
 108
 109         class LinuxUnicastIPAddressInformation : UnicastIPAddressInformation
 110         {
 111                 IPAddress address;
 112                 IPAddress ipv4Mask;
 113
 114                 public LinuxUnicastIPAddressInformation (IPAddress address)
 115                 {
 116                         this.address = address;
 117                 }
 118
 119                 public override IPAddress Address {
 120                         get { return address; }
 121                 }
 122
 123                 public override bool IsDnsEligible {
 124                         get {
 125                                 byte[] addressBytes = address.GetAddressBytes ();
 126                                 return !(addressBytes[0] == 169 && addressBytes[1] == 254);
 127                         }
 128                 }
 129
 130                 [MonoTODO("Always returns false")]
 131                 public override bool IsTransient {
 132                         get { return false; }
 133                 }
 134
 135                 // UnicastIPAddressInformation members
 136
 137                 public override long AddressPreferredLifetime {
 138                         get { throw new NotImplementedException (); }
 139                 }
 140
 141                 public override long AddressValidLifetime {
 142                         get { throw new NotImplementedException (); }
 143                 }
 144
 145                 public override long DhcpLeaseLifetime {
 146                         get { throw new NotImplementedException (); }
 147                 }
 148
 149                 public override DuplicateAddressDetectionState DuplicateAddressDetectionState {
 150                         get { throw new NotImplementedException (); }
 151                 }
 152
 153                 public override IPAddress IPv4Mask {
 154                         get {
 155                                 // The IPv6 equivilant (for .net compatibility)
 156                                 if (Address.AddressFamily != AddressFamily.InterNetwork)
 157                                         return IPAddress.Any;
 158
 159                                 if (ipv4Mask == null)
 160                                         ipv4Mask = NetworkInterface.GetNetMask (address);
 161
 162                                 return ipv4Mask;
 163                         }
 164                 }
 165
 166                 public override PrefixOrigin PrefixOrigin {
 167                         get { throw new NotImplementedException (); }
 168                 }
 169
 170                 public override SuffixOrigin SuffixOrigin {
 171                         get { throw new NotImplementedException (); }
 172                 }
 173         }
 174 }
 175