/mcs/class/System/System.Net.NetworkInformation/IPInterfaceProperties.cs
C# | 484 lines | 387 code | 56 blank | 41 comment | 48 complexity | 1488aeb2a0b1f9afd3dcdce5855898a1 MD5 | raw file
Possible License(s): LGPL-2.0, MPL-2.0-no-copyleft-exception, CC-BY-SA-3.0, GPL-2.0
- //
- // System.Net.NetworkInformation.IPInterfaceProperties
- //
- // Authors:
- // Gonzalo Paniagua Javier (gonzalo@novell.com)
- // Atsushi Enomoto (atsushi@ximian.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.
- //
- using System.Collections.Generic;
- using System.Globalization;
- using System.IO;
- using System.Net.Sockets;
- using System.Runtime.CompilerServices;
- using System.Text.RegularExpressions;
- using System.Runtime.InteropServices;
- namespace System.Net.NetworkInformation {
- abstract class UnixIPInterfaceProperties : IPInterfaceProperties
- {
- protected IPv4InterfaceProperties ipv4iface_properties;
- protected UnixNetworkInterface iface;
- List <IPAddress> addresses;
- IPAddressCollection dns_servers;
-
- public UnixIPInterfaceProperties (UnixNetworkInterface iface, List <IPAddress> addresses)
- {
- this.iface = iface;
- this.addresses = addresses;
- }
- public override IPv6InterfaceProperties GetIPv6Properties ()
- {
- throw new NotImplementedException ();
- }
- #if MONODROID
- [DllImport ("__Internal")]
- static extern int _monodroid_get_dns_servers (out IntPtr dns_servers_array);
- void GetDNSServersFromOS ()
- {
- IntPtr dsa;
- int len = _monodroid_get_dns_servers (out dsa);
- if (len <= 0)
- return;
- var servers = new IntPtr [len];
- Marshal.Copy (dsa, servers, 0, len);
- dns_servers = new IPAddressCollection ();
- foreach (IntPtr s in servers) {
- string server_ip = Marshal.PtrToStringAnsi (s);
- Marshal.FreeHGlobal (s);
- IPAddress addr;
- if (!IPAddress.TryParse (server_ip, out addr))
- continue;
- dns_servers.InternalAdd (addr);
- }
- Marshal.FreeHGlobal (dsa);
- }
- #else
- static Regex ns = new Regex (@"\s*nameserver\s+(?<address>.*)");
- static Regex search = new Regex (@"\s*search\s+(?<domain>.*)");
- string dns_suffix;
- DateTime last_parse;
- void ParseResolvConf ()
- {
- try {
- DateTime wt = File.GetLastWriteTime ("/etc/resolv.conf");
- if (wt <= last_parse)
- return;
- last_parse = wt;
- dns_suffix = "";
- dns_servers = new IPAddressCollection ();
- using (StreamReader reader = new StreamReader ("/etc/resolv.conf")) {
- string str;
- string line;
- while ((line = reader.ReadLine ()) != null) {
- line = line.Trim ();
- if (line.Length == 0 || line [0] == '#')
- continue;
- Match match = ns.Match (line);
- if (match.Success) {
- try {
- str = match.Groups ["address"].Value;
- str = str.Trim ();
- dns_servers.InternalAdd (IPAddress.Parse (str));
- } catch {
- }
- } else {
- match = search.Match (line);
- if (match.Success) {
- str = match.Groups ["domain"].Value;
- string [] parts = str.Split (',');
- dns_suffix = parts [0].Trim ();
- }
- }
- }
- }
- } catch {
- }
- }
- #endif
- public override IPAddressInformationCollection AnycastAddresses {
- get {
- var c = new IPAddressInformationCollection ();
- foreach (IPAddress address in addresses) {
- c.InternalAdd (new SystemIPAddressInformation (address, false, false));
- }
- return c;
- }
- }
- [MonoTODO ("Always returns an empty collection.")]
- public override IPAddressCollection DhcpServerAddresses {
- get {
- // There are lots of different DHCP clients
- // that all store their configuration differently.
- // I'm not sure what to do here.
- IPAddressCollection coll = new IPAddressCollection ();
- return coll;
- }
- }
- public override IPAddressCollection DnsAddresses {
- get {
- #if MONODROID
- GetDNSServersFromOS ();
- #else
- ParseResolvConf ();
- #endif
- return dns_servers;
- }
- }
- public override string DnsSuffix {
- get {
- #if MONODROID
- return String.Empty;
- #else
- ParseResolvConf ();
- return dns_suffix;
- #endif
- }
- }
- [MonoTODO ("Always returns true")]
- public override bool IsDnsEnabled {
- get {
- return true;
- }
- }
- [MonoTODO ("Always returns false")]
- public override bool IsDynamicDnsEnabled {
- get {
- return false;
- }
- }
- public override MulticastIPAddressInformationCollection MulticastAddresses {
- get {
- var multicastAddresses = new MulticastIPAddressInformationCollection ();
- foreach (IPAddress address in addresses) {
- byte[] addressBytes = address.GetAddressBytes ();
- if (addressBytes[0] >= 224 && addressBytes[0] <= 239) {
- multicastAddresses.InternalAdd (new SystemMulticastIPAddressInformation (new SystemIPAddressInformation (address, true, false)));
- }
- }
- return multicastAddresses;
- }
- }
- public override UnicastIPAddressInformationCollection UnicastAddresses {
- get {
- var unicastAddresses = new UnicastIPAddressInformationCollection ();
- foreach (IPAddress address in addresses) {
- switch (address.AddressFamily) {
- case AddressFamily.InterNetwork:
- byte top = address.GetAddressBytes () [0];
- if (top >= 224 && top <= 239)
- continue;
- unicastAddresses.InternalAdd (new LinuxUnicastIPAddressInformation (address));
- break;
- case AddressFamily.InterNetworkV6:
- if (address.IsIPv6Multicast)
- continue;
- unicastAddresses.InternalAdd (new LinuxUnicastIPAddressInformation (address));
- break;
- }
- }
- return unicastAddresses;
- }
- }
- [MonoTODO ("Always returns an empty collection.")]
- public override IPAddressCollection WinsServersAddresses {
- get {
- // I do SUPPOSE we could scrape /etc/samba/smb.conf, but.. yeesh.
- return new IPAddressCollection ();
- }
- }
- }
- class LinuxIPInterfaceProperties : UnixIPInterfaceProperties
- {
- public LinuxIPInterfaceProperties (LinuxNetworkInterface iface, List <IPAddress> addresses)
- : base (iface, addresses)
- {
- }
- public override IPv4InterfaceProperties GetIPv4Properties ()
- {
- if (ipv4iface_properties == null)
- ipv4iface_properties = new LinuxIPv4InterfaceProperties (iface as LinuxNetworkInterface);
-
- return ipv4iface_properties;
- }
- IPAddressCollection ParseRouteInfo (string iface)
- {
- var col = new IPAddressCollection ();
- try {
- using (StreamReader reader = new StreamReader ("/proc/net/route")) {
- string line;
- reader.ReadLine (); // Ignore first line
- while ((line = reader.ReadLine ()) != null) {
- line = line.Trim ();
- if (line.Length == 0)
- continue;
- string [] parts = line.Split ('\t');
- if (parts.Length < 3)
- continue;
- string gw_address = parts [2].Trim ();
- byte [] ipbytes = new byte [4];
- if (gw_address.Length == 8 && iface.Equals (parts [0], StringComparison.OrdinalIgnoreCase)) {
- for (int i = 0; i < 4; i++) {
- if (!Byte.TryParse (gw_address.Substring (i * 2, 2), NumberStyles.HexNumber, null, out ipbytes [3 - i]))
- continue;
- }
- IPAddress ip = new IPAddress (ipbytes);
- if (!ip.Equals (IPAddress.Any) && !col.Contains (ip))
- col.InternalAdd (ip);
- }
- }
- }
- } catch {
- }
- return col;
- }
- public override GatewayIPAddressInformationCollection GatewayAddresses {
- get {
- return SystemGatewayIPAddressInformation.ToGatewayIpAddressInformationCollection (ParseRouteInfo (this.iface.Name.ToString()));
- }
- }
- }
- class MacOsIPInterfaceProperties : UnixIPInterfaceProperties
- {
- public MacOsIPInterfaceProperties (MacOsNetworkInterface iface, List <IPAddress> addresses)
- : base (iface, addresses)
- {
- }
- public override IPv4InterfaceProperties GetIPv4Properties ()
- {
- if (ipv4iface_properties == null)
- ipv4iface_properties = new MacOsIPv4InterfaceProperties (iface as MacOsNetworkInterface);
-
- return ipv4iface_properties;
- }
- [MethodImplAttribute(MethodImplOptions.InternalCall)]
- private extern static bool ParseRouteInfo_internal(string iface, out string[] gw_addr_list);
- public override GatewayIPAddressInformationCollection GatewayAddresses {
- get {
- var gateways = new IPAddressCollection ();
- string[] gw_addrlist;
- if (!ParseRouteInfo_internal (this.iface.Name.ToString(), out gw_addrlist))
- return new GatewayIPAddressInformationCollection ();
- for(int i=0; i<gw_addrlist.Length; i++) {
- try {
- IPAddress ip = IPAddress.Parse(gw_addrlist[i]);
- if (!ip.Equals (IPAddress.Any) && !gateways.Contains (ip))
- gateways.InternalAdd (ip);
- } catch (ArgumentNullException) {
- /* Ignore this, as the
- * internal call might have
- * left some blank entries at
- * the end of the array
- */
- }
- }
- return SystemGatewayIPAddressInformation.ToGatewayIpAddressInformationCollection (gateways);
- }
- }
- }
- #if WIN_PLATFORM
- class Win32IPInterfaceProperties2 : IPInterfaceProperties
- {
- readonly Win32_IP_ADAPTER_ADDRESSES addr;
- readonly Win32_MIB_IFROW mib4, mib6;
- public Win32IPInterfaceProperties2 (Win32_IP_ADAPTER_ADDRESSES addr, Win32_MIB_IFROW mib4, Win32_MIB_IFROW mib6)
- {
- this.addr = addr;
- this.mib4 = mib4;
- this.mib6 = mib6;
- }
- public override IPv4InterfaceProperties GetIPv4Properties ()
- {
- Win32_IP_ADAPTER_INFO v4info = Win32NetworkInterface2.GetAdapterInfoByIndex (mib4.Index);
- return new Win32IPv4InterfaceProperties (v4info, mib4);
- }
- public override IPv6InterfaceProperties GetIPv6Properties ()
- {
- Win32_IP_ADAPTER_INFO v6info = Win32NetworkInterface2.GetAdapterInfoByIndex (mib6.Index);
- return new Win32IPv6InterfaceProperties (mib6);
- }
- public override IPAddressInformationCollection AnycastAddresses {
- get { return Win32FromAnycast (addr.FirstAnycastAddress); }
- }
- static IPAddressInformationCollection Win32FromAnycast (IntPtr ptr)
- {
- var c = new IPAddressInformationCollection ();
- Win32_IP_ADAPTER_ANYCAST_ADDRESS a;
- for (IntPtr p = ptr; p != IntPtr.Zero; p = a.Next) {
- a = (Win32_IP_ADAPTER_ANYCAST_ADDRESS) Marshal.PtrToStructure (p, typeof (Win32_IP_ADAPTER_ANYCAST_ADDRESS));
- c.InternalAdd (new SystemIPAddressInformation (
- a.Address.GetIPAddress (),
- a.LengthFlags.IsDnsEligible,
- a.LengthFlags.IsTransient));
- }
- return c;
- }
- public override IPAddressCollection DhcpServerAddresses {
- get {
- Win32_IP_ADAPTER_INFO v4info = Win32NetworkInterface2.GetAdapterInfoByIndex (mib4.Index);
- // FIXME: should ipv6 DhcpServer be considered?
- try {
- return new Win32IPAddressCollection (v4info.DhcpServer);
- } catch (IndexOutOfRangeException) {
- return Win32IPAddressCollection.Empty;
- }
- }
- }
- public override IPAddressCollection DnsAddresses {
- get { return Win32IPAddressCollection.FromDnsServer (addr.FirstDnsServerAddress); }
- }
- public override string DnsSuffix {
- get { return addr.DnsSuffix; }
- }
- public override GatewayIPAddressInformationCollection GatewayAddresses {
- get {
- var col = new GatewayIPAddressInformationCollection ();
- try {
- Win32_IP_ADAPTER_INFO v4info = Win32NetworkInterface2.GetAdapterInfoByIndex (mib4.Index);
- // FIXME: should ipv6 DhcpServer be considered?
- var a = v4info.GatewayList;
- if (!String.IsNullOrEmpty (a.IpAddress)) {
- col.InternalAdd(new SystemGatewayIPAddressInformation(IPAddress.Parse (a.IpAddress)));
- AddSubsequently (a.Next, col);
- }
- } catch (IndexOutOfRangeException) {}
- return col;
- }
- }
- static void AddSubsequently (IntPtr head, GatewayIPAddressInformationCollection col)
- {
- Win32_IP_ADDR_STRING a;
- for (IntPtr p = head; p != IntPtr.Zero; p = a.Next) {
- a = (Win32_IP_ADDR_STRING) Marshal.PtrToStructure (p, typeof (Win32_IP_ADDR_STRING));
- col.InternalAdd (new SystemGatewayIPAddressInformation (IPAddress.Parse (a.IpAddress)));
- }
- }
- public override bool IsDnsEnabled {
- get { return Win32NetworkInterface.FixedInfo.EnableDns != 0; }
- }
- public override bool IsDynamicDnsEnabled {
- get { return addr.DdnsEnabled; }
- }
- public override MulticastIPAddressInformationCollection MulticastAddresses {
- get { return Win32FromMulticast (addr.FirstMulticastAddress); }
- }
- static MulticastIPAddressInformationCollection Win32FromMulticast (IntPtr ptr)
- {
- var c = new MulticastIPAddressInformationCollection ();
- Win32_IP_ADAPTER_MULTICAST_ADDRESS a;
- for (IntPtr p = ptr; p != IntPtr.Zero; p = a.Next) {
- a = (Win32_IP_ADAPTER_MULTICAST_ADDRESS) Marshal.PtrToStructure (p, typeof (Win32_IP_ADAPTER_MULTICAST_ADDRESS));
- c.InternalAdd (new SystemMulticastIPAddressInformation (new SystemIPAddressInformation (
- a.Address.GetIPAddress (),
- a.LengthFlags.IsDnsEligible,
- a.LengthFlags.IsTransient)));
- }
- return c;
- }
- public override UnicastIPAddressInformationCollection UnicastAddresses {
- get {
- try {
- Win32_IP_ADAPTER_INFO ai = Win32NetworkInterface2.GetAdapterInfoByIndex (mib4.Index);
- // FIXME: should ipv6 DhcpServer be considered?
- return Win32FromUnicast (addr.FirstUnicastAddress);
- } catch (IndexOutOfRangeException) {
- return new UnicastIPAddressInformationCollection ();
- }
- }
- }
- static UnicastIPAddressInformationCollection Win32FromUnicast (IntPtr ptr)
- {
- UnicastIPAddressInformationCollection c = new UnicastIPAddressInformationCollection ();
- Win32_IP_ADAPTER_UNICAST_ADDRESS a;
- for (IntPtr p = ptr; p != IntPtr.Zero; p = a.Next) {
- a = (Win32_IP_ADAPTER_UNICAST_ADDRESS) Marshal.PtrToStructure (p, typeof (Win32_IP_ADAPTER_UNICAST_ADDRESS));
- c.InternalAdd (new Win32UnicastIPAddressInformation (a));
- }
- return c;
- }
- public override IPAddressCollection WinsServersAddresses {
- get {
- try {
- Win32_IP_ADAPTER_INFO v4info = Win32NetworkInterface2.GetAdapterInfoByIndex (mib4.Index);
- // FIXME: should ipv6 DhcpServer be considered?
- return new Win32IPAddressCollection (v4info.PrimaryWinsServer, v4info.SecondaryWinsServer);
- } catch (IndexOutOfRangeException) {
- return Win32IPAddressCollection.Empty;
- }
- }
- }
- }
- #endif
- }