using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;

namespace System.Net.NetworkInformation
{
	// Token: 0x020001A6 RID: 422
	internal class Win32NetworkInterface2 : NetworkInterface
	{
		// Token: 0x06000E12 RID: 3602 RVA: 0x00027B44 File Offset: 0x00025D44
		private Win32NetworkInterface2(Win32_IP_ADAPTER_ADDRESSES addr)
		{
			this.addr = addr;
			this.mib4 = default(Win32_MIB_IFROW);
			this.mib4.Index = addr.Alignment.IfIndex;
			if (Win32NetworkInterface2.GetIfEntry(ref this.mib4) != 0)
			{
				this.mib4.Index = -1;
			}
			this.mib6 = default(Win32_MIB_IFROW);
			this.mib6.Index = addr.Ipv6IfIndex;
			if (Win32NetworkInterface2.GetIfEntry(ref this.mib6) != 0)
			{
				this.mib6.Index = -1;
			}
			this.ip4stats = new Win32IPv4InterfaceStatistics(this.mib4);
			this.ip_if_props = new Win32IPInterfaceProperties2(addr, this.mib4, this.mib6);
		}

		// Token: 0x06000E13 RID: 3603
		[DllImport("iphlpapi.dll", SetLastError = true)]
		private static extern int GetAdaptersInfo(byte[] info, ref int size);

		// Token: 0x06000E14 RID: 3604
		[DllImport("iphlpapi.dll", SetLastError = true)]
		private static extern int GetAdaptersAddresses(uint family, uint flags, IntPtr reserved, byte[] info, ref int size);

		// Token: 0x06000E15 RID: 3605
		[DllImport("iphlpapi.dll", SetLastError = true)]
		private static extern int GetIfEntry(ref Win32_MIB_IFROW row);

		// Token: 0x06000E16 RID: 3606 RVA: 0x00027C04 File Offset: 0x00025E04
		public static NetworkInterface[] ImplGetAllNetworkInterfaces()
		{
			Win32_IP_ADAPTER_ADDRESSES[] adaptersAddresses = Win32NetworkInterface2.GetAdaptersAddresses();
			NetworkInterface[] array = new NetworkInterface[adaptersAddresses.Length];
			for (int i = 0; i < array.Length; i++)
			{
				array[i] = new Win32NetworkInterface2(adaptersAddresses[i]);
			}
			return array;
		}

		// Token: 0x06000E17 RID: 3607 RVA: 0x00027C40 File Offset: 0x00025E40
		public static Win32_IP_ADAPTER_INFO GetAdapterInfoByIndex(int index)
		{
			foreach (Win32_IP_ADAPTER_INFO win32_IP_ADAPTER_INFO in Win32NetworkInterface2.GetAdaptersInfo())
			{
				if ((ulong)win32_IP_ADAPTER_INFO.Index == (ulong)((long)index))
				{
					return win32_IP_ADAPTER_INFO;
				}
			}
			return null;
		}

		// Token: 0x06000E18 RID: 3608 RVA: 0x00027C7C File Offset: 0x00025E7C
		private unsafe static Win32_IP_ADAPTER_INFO[] GetAdaptersInfo()
		{
			byte[] array = null;
			int num = 0;
			Win32NetworkInterface2.GetAdaptersInfo(array, ref num);
			array = new byte[num];
			int adaptersInfo = Win32NetworkInterface2.GetAdaptersInfo(array, ref num);
			if (adaptersInfo != 0)
			{
				throw new NetworkInformationException(adaptersInfo);
			}
			List<Win32_IP_ADAPTER_INFO> list = new List<Win32_IP_ADAPTER_INFO>();
			fixed (byte* ptr = (ref array != null && array.Length != 0 ? ref array[0] : ref *null))
			{
				IntPtr intPtr = (IntPtr)((void*)ptr);
				while (intPtr != IntPtr.Zero)
				{
					Win32_IP_ADAPTER_INFO win32_IP_ADAPTER_INFO = new Win32_IP_ADAPTER_INFO();
					Marshal.PtrToStructure(intPtr, win32_IP_ADAPTER_INFO);
					list.Add(win32_IP_ADAPTER_INFO);
					intPtr = win32_IP_ADAPTER_INFO.Next;
				}
			}
			return list.ToArray();
		}

		// Token: 0x06000E19 RID: 3609 RVA: 0x00027D24 File Offset: 0x00025F24
		private unsafe static Win32_IP_ADAPTER_ADDRESSES[] GetAdaptersAddresses()
		{
			byte[] array = null;
			int num = 0;
			Win32NetworkInterface2.GetAdaptersAddresses(0U, 0U, IntPtr.Zero, array, ref num);
			array = new byte[num];
			int adaptersAddresses = Win32NetworkInterface2.GetAdaptersAddresses(0U, 0U, IntPtr.Zero, array, ref num);
			if (adaptersAddresses != 0)
			{
				throw new NetworkInformationException(adaptersAddresses);
			}
			List<Win32_IP_ADAPTER_ADDRESSES> list = new List<Win32_IP_ADAPTER_ADDRESSES>();
			fixed (byte* ptr = (ref array != null && array.Length != 0 ? ref array[0] : ref *null))
			{
				IntPtr intPtr = (IntPtr)((void*)ptr);
				while (intPtr != IntPtr.Zero)
				{
					Win32_IP_ADAPTER_ADDRESSES win32_IP_ADAPTER_ADDRESSES = new Win32_IP_ADAPTER_ADDRESSES();
					Marshal.PtrToStructure(intPtr, win32_IP_ADAPTER_ADDRESSES);
					list.Add(win32_IP_ADAPTER_ADDRESSES);
					intPtr = win32_IP_ADAPTER_ADDRESSES.Next;
				}
			}
			return list.ToArray();
		}

		// Token: 0x06000E1A RID: 3610 RVA: 0x00027DD8 File Offset: 0x00025FD8
		public override IPInterfaceProperties GetIPProperties()
		{
			return this.ip_if_props;
		}

		// Token: 0x06000E1B RID: 3611 RVA: 0x00027DE0 File Offset: 0x00025FE0
		public override IPv4InterfaceStatistics GetIPv4Statistics()
		{
			return this.ip4stats;
		}

		// Token: 0x06000E1C RID: 3612 RVA: 0x00027DE8 File Offset: 0x00025FE8
		public override PhysicalAddress GetPhysicalAddress()
		{
			byte[] array = new byte[this.addr.PhysicalAddressLength];
			Array.Copy(this.addr.PhysicalAddress, 0, array, 0, array.Length);
			return new PhysicalAddress(array);
		}

		// Token: 0x06000E1D RID: 3613 RVA: 0x00027E24 File Offset: 0x00026024
		public override bool Supports(NetworkInterfaceComponent networkInterfaceComponent)
		{
			if (networkInterfaceComponent != NetworkInterfaceComponent.IPv4)
			{
				return networkInterfaceComponent == NetworkInterfaceComponent.IPv6 && this.mib6.Index >= 0;
			}
			return this.mib4.Index >= 0;
		}

		// Token: 0x17000497 RID: 1175
		// (get) Token: 0x06000E1E RID: 3614 RVA: 0x00027E6C File Offset: 0x0002606C
		public override string Description
		{
			get
			{
				return this.addr.Description;
			}
		}

		// Token: 0x17000498 RID: 1176
		// (get) Token: 0x06000E1F RID: 3615 RVA: 0x00027E7C File Offset: 0x0002607C
		public override string Id
		{
			get
			{
				return this.addr.AdapterName;
			}
		}

		// Token: 0x17000499 RID: 1177
		// (get) Token: 0x06000E20 RID: 3616 RVA: 0x00027E8C File Offset: 0x0002608C
		public override bool IsReceiveOnly
		{
			get
			{
				return this.addr.IsReceiveOnly;
			}
		}

		// Token: 0x1700049A RID: 1178
		// (get) Token: 0x06000E21 RID: 3617 RVA: 0x00027E9C File Offset: 0x0002609C
		public override string Name
		{
			get
			{
				return this.addr.FriendlyName;
			}
		}

		// Token: 0x1700049B RID: 1179
		// (get) Token: 0x06000E22 RID: 3618 RVA: 0x00027EAC File Offset: 0x000260AC
		public override NetworkInterfaceType NetworkInterfaceType
		{
			get
			{
				return this.addr.IfType;
			}
		}

		// Token: 0x1700049C RID: 1180
		// (get) Token: 0x06000E23 RID: 3619 RVA: 0x00027EBC File Offset: 0x000260BC
		public override OperationalStatus OperationalStatus
		{
			get
			{
				return this.addr.OperStatus;
			}
		}

		// Token: 0x1700049D RID: 1181
		// (get) Token: 0x06000E24 RID: 3620 RVA: 0x00027ECC File Offset: 0x000260CC
		public override long Speed
		{
			get
			{
				return (long)((ulong)((this.mib6.Index < 0) ? this.mib4.Speed : this.mib6.Speed));
			}
		}

		// Token: 0x1700049E RID: 1182
		// (get) Token: 0x06000E25 RID: 3621 RVA: 0x00027EFC File Offset: 0x000260FC
		public override bool SupportsMulticast
		{
			get
			{
				return !this.addr.NoMulticast;
			}
		}

		// Token: 0x04000CA5 RID: 3237
		private Win32_IP_ADAPTER_ADDRESSES addr;

		// Token: 0x04000CA6 RID: 3238
		private Win32_MIB_IFROW mib4;

		// Token: 0x04000CA7 RID: 3239
		private Win32_MIB_IFROW mib6;

		// Token: 0x04000CA8 RID: 3240
		private Win32IPv4InterfaceStatistics ip4stats;

		// Token: 0x04000CA9 RID: 3241
		private IPInterfaceProperties ip_if_props;
	}
}