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
  33 namespace System.Net.NetworkInformation {
  34         public abstract class UnicastIPAddressInformation : IPAddressInformation {
  35                 protected UnicastIPAddressInformation ()
  36                 {
  37                 }
  38
  39                 public abstract long AddressPreferredLifetime { get; }
  40                 public abstract long AddressValidLifetime { get; }
  41                 public abstract long DhcpLeaseLifetime { get; }
  42                 public abstract DuplicateAddressDetectionState DuplicateAddressDetectionState { get; }
  43                 public abstract IPAddress IPv4Mask { get; }
  44                 public abstract PrefixOrigin PrefixOrigin { get; }
  45                 public abstract SuffixOrigin SuffixOrigin { get; }
  46         }
  47
  48         class Win32UnicastIPAddressInformation : UnicastIPAddressInformation
  49         {
  50                 int if_index;
  51                 Win32_IP_ADAPTER_UNICAST_ADDRESS info;
  52
  53                 public Win32UnicastIPAddressInformation (int ifIndex, Win32_IP_ADAPTER_UNICAST_ADDRESS info)
  54                 {
  55                         this.if_index = ifIndex;
  56                         this.info = info;
  57                 }
  58
  59                 public override IPAddress Address {
  60                         get { return info.Address.GetIPAddress (); }
  61                 }
  62
  63                 public override bool IsDnsEligible {
  64                         get { return info.LengthFlags.IsDnsEligible; }
  65                 }
  66
  67                 public override bool IsTransient {
  68                         get { return info.LengthFlags.IsTransient; }
  69                 }
  70
  71                 // UnicastIPAddressInformation members
  72
  73                 public override long AddressPreferredLifetime {
  74                         get { return info.PreferredLifetime; }
  75                 }
  76
  77                 public override long AddressValidLifetime {
  78                         get { return info.ValidLifetime; }
  79                 }
  80
  81                 public override long DhcpLeaseLifetime {
  82                         get { return info.LeaseLifetime; }
  83                 }
  84
  85                 public override DuplicateAddressDetectionState DuplicateAddressDetectionState {
  86                         get { return info.DadState; }
  87                 }
  88
  89                 public override IPAddress IPv4Mask {
  90                         get {
  91                                 Win32_IP_ADAPTER_INFO ai = Win32NetworkInterface2.GetAdapterInfoByIndex (if_index);
  92                                 if (ai == null)
  93                                         throw new Exception ("huh? " + if_index);
  94                                 if (this.Address == null)
  95                                         return null;
  96                                 string expected = this.Address.ToString ();
  97                                 unsafe {
  98                                         Win32_IP_ADDR_STRING p = ai.IpAddressList;
  99                                         while (true) {
 100                                                 if (p.IpAddress == expected)
 101                                                         return IPAddress.Parse (p.IpMask);
 102                                                 if (p.Next == IntPtr.Zero)
 103                                                         break;
 104                                                 p = (Win32_IP_ADDR_STRING) Marshal.PtrToStructure (p.Next, typeof (Win32_IP_ADDR_STRING));
 105                                         }
 106
 107                                         // Or whatever it should be...
 108                                         return null;
 109                                 }
 110                         }
 111                 }
 112
 113                 public override PrefixOrigin PrefixOrigin {
 114                         get { return info.PrefixOrigin; }
 115                 }
 116
 117                 public override SuffixOrigin SuffixOrigin {
 118                         get { return info.SuffixOrigin; }
 119                 }
 120         }
 121
 122         class LinuxUnicastIPAddressInformation : UnicastIPAddressInformation
 123         {
 124                 IPAddress address;
 125
 126                 public LinuxUnicastIPAddressInformation (IPAddress address)
 127                 {
 128                         this.address = address;
 129                 }
 130
 131                 public override IPAddress Address {
 132                         get { return address; }
 133                 }
 134
 135                 public override bool IsDnsEligible {
 136                         get {
 137                                 byte[] addressBytes = address.GetAddressBytes ();
 138                                 return !(addressBytes[0] == 169 && addressBytes[1] == 254);
 139                         }
 140                 }
 141
 142                 [MonoTODO("Always returns false")]
 143                 public override bool IsTransient {
 144                         get { return false; }
 145                 }
 146
 147                 // UnicastIPAddressInformation members
 148
 149                 public override long AddressPreferredLifetime {
 150                         get { throw new NotImplementedException (); }
 151                 }
 152
 153                 public override long AddressValidLifetime {
 154                         get { throw new NotImplementedException (); }
 155                 }
 156
 157                 public override long DhcpLeaseLifetime {
 158                         get { throw new NotImplementedException (); }
 159                 }
 160
 161                 public override DuplicateAddressDetectionState DuplicateAddressDetectionState {
 162                         get { throw new NotImplementedException (); }
 163                 }
 164
 165                 public override IPAddress IPv4Mask {
 166                         get { throw new NotImplementedException (); }
 167                 }
 168
 169                 public override PrefixOrigin PrefixOrigin {
 170                         get { throw new NotImplementedException (); }
 171                 }
 172
 173                 public override SuffixOrigin SuffixOrigin {
 174                         get { throw new NotImplementedException (); }
 175                 }
 176         }
 177 }
 178