/// <summary>
/// Get IFTable
/// </summary>
/// <returns>MIB_IFTABLE Class</returns>
private static MIB_IFTABLE GetAllIfTable()
{
//缓冲区大小
uint dwSize = 0;
//获取缓冲区大小
uint ret = GetIfTable(null, ref dwSize, false);
if (ret == 50)
{
//此函数仅支持于 win98/nt 系统
return(null);
}
//定义，获取 MIB_IFTABLE 对象
MIB_IFTABLE tbl = new MIB_IFTABLE((int)dwSize);
ret = GetIfTable(tbl.ByteArray, ref dwSize, false);
//如果不成功
if (ret != 0)
{
return(null);
}
return(tbl);
}
/// <summary>
/// 获取所有的网络信息
/// </summary>
/// <returns>NetInfo 网络信息范型</returns>
public static List <NetInfo> GetAllNetInfo()
{
//定义范型
List <NetInfo> ninfos = new List <NetInfo>();
//定义，获取 MIB_IFTABLE 对象
MIB_IFTABLE tbl = GetAllIfTable();
//如果成功
if (tbl != null)
{
tbl.Deserialize();
for (int i = 0; i < tbl.Table.Length; i++)
{
ninfos.Add(GetNetInfo(tbl.Table[i]));
}
}
return(ninfos);
}
/// <summary>
/// 获取指定物理地址的网络信息
/// </summary>
/// <param name="MACAddress">物理地址</param>
/// <returns>NetInfo 网络信息范型</returns>
public static NetInfo GetNetInfoByMac(string MACAddress)
{
//定义，获取 MIB_IFTABLE 对象
MIB_IFTABLE tbl = GetAllIfTable();
//如果成功
if (tbl != null)
{
tbl.Deserialize();
for (int i = 0; i < tbl.Table.Length; i++)
{
NetInfo ninfo = GetNetInfo(tbl.Table[i]);
if (string.Compare(MACAddress, ninfo.PhysAddr, true) == 0)
{
return(ninfo);
}
}
}
return(null);
}
/// <summary>
/// 获取指定类型的网络信息
/// </summary>
/// <param name="nettype">网络类型</param>
/// <returns>NetInfo 网络信息范型</returns>
public static List <NetInfo> GetNetInfoByType(NetType nettype)
{
//定义范型
List <NetInfo> ninfos = new List <NetInfo>();
//定义，获取 MIB_IFTABLE 对象
MIB_IFTABLE tbl = GetAllIfTable();
//如果成功
if (tbl != null)
{
tbl.Deserialize();
for (int i = 0; i < tbl.Table.Length; i++)
{
NetInfo ninfo = GetNetInfo(tbl.Table[i]);
if (ninfo.Type == nettype)
{
ninfos.Add(ninfo);
}
}
}
return(ninfos);
}