RBXLegacy-src/Open.NAT/Open.Nat/Utils/IPAddressesProvider.cs

69 lines
2.5 KiB
C#

//
// Authors:
// Lucas Ontivero lucasontivero@gmail.com
//
// Copyright (C) 2014 Lucas Ontivero
//
// 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;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.NetworkInformation;
using System.Net.Sockets;
namespace Open.Nat
{
internal class IPAddressesProvider : IIPAddressesProvider
{
#region IIPAddressesProvider Members
public IEnumerable<IPAddress> UnicastAddresses()
{
return IPAddresses(p => p.UnicastAddresses.Select(x => x.Address));
}
public IEnumerable<IPAddress> DnsAddresses()
{
return IPAddresses(p => p.DnsAddresses);
}
public IEnumerable<IPAddress> GatewayAddresses()
{
return IPAddresses(p => p.GatewayAddresses.Select(x => x.Address));
}
#endregion
private static IEnumerable<IPAddress> IPAddresses(Func<IPInterfaceProperties, IEnumerable<IPAddress>> ipExtractor)
{
return from networkInterface in NetworkInterface.GetAllNetworkInterfaces()
where
networkInterface.OperationalStatus == OperationalStatus.Up ||
networkInterface.OperationalStatus == OperationalStatus.Unknown
let properties = networkInterface.GetIPProperties()
from address in ipExtractor(properties)
where address.AddressFamily == AddressFamily.InterNetwork
select address;
}
}
}