public static List <DhcpClient> DhcpEnumSubnetClients(string IpAddress, string subnetMask)
{
DHCP_CLIENT_INFO_ARRAY nativeClientArray;
DHCP_CLIENT_INFO nativeClient;
uint PreferredMaximum = 65536, ResumeHandle = 0, ClientsRead = 0, ClientsTotal = 0;
IntPtr ClientInfo, client;
List <DhcpClient> dhcpclientslist = new List <DhcpClient>();
uint SubnetMask = StringToUint(subnetMask);
int Error = dhcpsapimethods.DhcpEnumSubnetClients(IpAddress, SubnetMask, ref ResumeHandle, PreferredMaximum, out ClientInfo, out ClientsRead, out ClientsTotal);
if (Error != 0)
{
return(dhcpclientslist);
}
nativeClientArray = (DHCP_CLIENT_INFO_ARRAY)Marshal.PtrToStructure(ClientInfo, typeof(DHCP_CLIENT_INFO_ARRAY));
client = nativeClientArray.Clients;
for (int i = 0; i < (int)nativeClientArray.NumElements; i++)
{
nativeClient = (DHCP_CLIENT_INFO)Marshal.PtrToStructure(Marshal.ReadIntPtr(client), typeof(DHCP_CLIENT_INFO));
DhcpClient dhcpclient = new DhcpClient();
dhcpclient.ClientComment = nativeClient.ClientComment;
dhcpclient.ClientHardwareAddress = ByteToString(nativeClient.ClientHardwareAddress);
dhcpclient.ClientIpAddress = UintToString(nativeClient.ClientIpAddress);
dhcpclient.ClientLeaseExpires = nativeClient.ClientLeaseExpires.ConvertToNonNative();
dhcpclient.ClientName = nativeClient.ClientName;
dhcpclientslist.Add(dhcpclient);
client = (IntPtr)((int)client + (int)Marshal.SizeOf(typeof(IntPtr)));
}
return(dhcpclientslist);
}
public static DATE_TIME ConvertDateTimeToNative(DhcpClient client)
{
DATE_TIME dTime = new DATE_TIME();
dTime.dwHighDateTime = (uint)(client.ClientLeaseExpires.ToFileTime() >> 32);
dTime.dwLowDateTime = (uint)(client.ClientLeaseExpires.ToFileTime() + 0xFFFFFFFF);
return(dTime);
}
public static void DhcpCreateClientInfo(string ServerIpAddress, DhcpClient dhcpClient)
{
DHCP_CLIENT_INFO clientInfo = ConvertClientInfoToNative(dhcpClient);
int error = dhcpsapimethods.DhcpCreateClientInfo(ServerIpAddress, ref clientInfo);
if (error != 0)
{
Console.WriteLine(error);
Console.ReadLine();
}
}
public static DHCP_CLIENT_INFO ConvertClientInfoToNative(DhcpClient client)
{
DHCP_CLIENT_INFO ClientInfo = new DHCP_CLIENT_INFO();
ClientInfo.ClientIpAddress = StringToUint(client.ClientIpAddress);
ClientInfo.SubnetMask = StringToUint(client.SubnetMask);
ClientInfo.ClientHardwareAddress = ConverToNativeMac(client.ClientHardwareAddress);
ClientInfo.ClientName = client.ClientName;
ClientInfo.ClientComment = client.ClientComment;
ClientInfo.ClientLeaseExpires = ConvertDateTimeToNative(client);
DHCP_HOST_INFO host = new DHCP_HOST_INFO();
host.HostName = client.OwnerHost.HostName;
host.IpAddress = StringToUint(client.OwnerHost.IpAddress);
host.NetBiosName = client.OwnerHost.NetBiosName;
ClientInfo.OwnerHost = host;
return(ClientInfo);
}
static void Main(string[] args)
{
DhcpOption option = new DhcpOption();
option.OptionID = 82;
option.OptionComment = "test";
option.OptionName = "TestOption";
option.IntData = new uint[] { DhcpClient.StringToUint("172.22.249.213"), DhcpClient.StringToUint("172.22.249.214") };
option.OptionType = DHCP_OPTION_TYPE.DhcpArrayTypeOption;
option.OptionDataType = DHCP_OPTION_DATA_TYPE.DhcpIpAddressOption;
DhcpOption.DhcpCreateOption("192.168.2.246", option);
//List<DhcpClient> clients = DhcpClient.DhcpEnumSubnetClients("192.168.2.246", "192.168.2.0");
//foreach (DhcpClient client in clients)
//{
// Console.WriteLine(client.ClientName);
// Console.WriteLine(client.ClientLeaseExpires);
// Console.WriteLine(client.ClientIpAddress);
// Console.WriteLine(client.ClientComment);
// Console.WriteLine(client.ClientHardwareAddress);
// Console.WriteLine(client.OwnerHost.HostName);
// Console.WriteLine(client.OwnerHost.IpAddress);
// Console.WriteLine(client.OwnerHost.NetBiosName);
// Console.WriteLine(client.SubnetMask);
// Console.ReadLine();
//}
DhcpClient dhcpClient = new DhcpClient();
dhcpClient.ClientIpAddress = "192.168.2.48";
dhcpClient.SubnetMask = "192.168.2.0";
dhcpClient.ClientComment = "this is a test";
dhcpClient.ClientName = "test1";
dhcpClient.ClientHardwareAddress = "0800690201FC";
dhcpClient.ClientLeaseExpires = DateTime.Now.AddDays(30);
dhcpClient.OwnerHost.HostName = "MEAN-DEV";
dhcpClient.OwnerHost.IpAddress = "192.168.2.246";
DhcpClient.DhcpCreateClientInfo("192.168.2.246", dhcpClient);
}
static void Main(string[] args)
{
DhcpOption option = new DhcpOption();
option.OptionID = 82;
option.OptionComment = "test";
option.OptionName = "TestOption";
option.IntData = new uint[] { DhcpClient.StringToUint("172.22.249.213"), DhcpClient.StringToUint("172.22.249.214") };
option.OptionType = DHCP_OPTION_TYPE.DhcpArrayTypeOption;
option.OptionDataType = DHCP_OPTION_DATA_TYPE.DhcpIpAddressOption;
DhcpOption.DhcpCreateOption("192.168.2.246", option);
//List<DhcpClient> clients = DhcpClient.DhcpEnumSubnetClients("192.168.2.246", "192.168.2.0");
//foreach (DhcpClient client in clients)
//{
// Console.WriteLine(client.ClientName);
// Console.WriteLine(client.ClientLeaseExpires);
// Console.WriteLine(client.ClientIpAddress);
// Console.WriteLine(client.ClientComment);
// Console.WriteLine(client.ClientHardwareAddress);
// Console.WriteLine(client.OwnerHost.HostName);
// Console.WriteLine(client.OwnerHost.IpAddress);
// Console.WriteLine(client.OwnerHost.NetBiosName);
// Console.WriteLine(client.SubnetMask);
// Console.ReadLine();
//}
DhcpClient dhcpClient = new DhcpClient();
dhcpClient.ClientIpAddress = "192.168.2.48";
dhcpClient.SubnetMask = "192.168.2.0";
dhcpClient.ClientComment = "this is a test";
dhcpClient.ClientName = "test1";
dhcpClient.ClientHardwareAddress = "0800690201FC";
dhcpClient.ClientLeaseExpires = DateTime.Now.AddDays(30);
dhcpClient.OwnerHost.HostName = "MEAN-DEV";
dhcpClient.OwnerHost.IpAddress = "192.168.2.246";
DhcpClient.DhcpCreateClientInfo("192.168.2.246", dhcpClient);
}
public static DHCP_CLIENT_INFO ConvertClientInfoToNative(DhcpClient client)
{
DHCP_CLIENT_INFO ClientInfo = new DHCP_CLIENT_INFO();
ClientInfo.ClientIpAddress = StringToUint(client.ClientIpAddress);
ClientInfo.SubnetMask = StringToUint(client.SubnetMask);
ClientInfo.ClientHardwareAddress = ConverToNativeMac(client.ClientHardwareAddress);
ClientInfo.ClientName = client.ClientName;
ClientInfo.ClientComment = client.ClientComment;
ClientInfo.ClientLeaseExpires = ConvertDateTimeToNative(client);
DHCP_HOST_INFO host = new DHCP_HOST_INFO();
host.HostName = client.OwnerHost.HostName;
host.IpAddress = StringToUint(client.OwnerHost.IpAddress);
host.NetBiosName = client.OwnerHost.NetBiosName;
ClientInfo.OwnerHost = host;
return ClientInfo;
}
public static List<DhcpClient> DhcpEnumSubnetClients(string IpAddress, string subnetMask)
{
DHCP_CLIENT_INFO_ARRAY nativeClientArray;
DHCP_CLIENT_INFO nativeClient;
uint PreferredMaximum = 65536, ResumeHandle = 0, ClientsRead = 0, ClientsTotal = 0;
IntPtr ClientInfo, client;
List<DhcpClient> dhcpclientslist = new List<DhcpClient>();
uint SubnetMask = StringToUint(subnetMask);
int Error = dhcpsapimethods.DhcpEnumSubnetClients(IpAddress, SubnetMask, ref ResumeHandle, PreferredMaximum, out ClientInfo, out ClientsRead, out ClientsTotal);
if (Error != 0)
return dhcpclientslist;
nativeClientArray = (DHCP_CLIENT_INFO_ARRAY)Marshal.PtrToStructure(ClientInfo, typeof(DHCP_CLIENT_INFO_ARRAY));
client = nativeClientArray.Clients;
for (int i = 0; i < (int)nativeClientArray.NumElements; i++) {
nativeClient = (DHCP_CLIENT_INFO)Marshal.PtrToStructure(Marshal.ReadIntPtr(client), typeof(DHCP_CLIENT_INFO));
DhcpClient dhcpclient = new DhcpClient();
dhcpclient.ClientComment = nativeClient.ClientComment;
dhcpclient.ClientHardwareAddress = ByteToString(nativeClient.ClientHardwareAddress);
dhcpclient.ClientIpAddress = UintToString(nativeClient.ClientIpAddress);
dhcpclient.ClientLeaseExpires = nativeClient.ClientLeaseExpires.ConvertToNonNative();
dhcpclient.ClientName = nativeClient.ClientName;
dhcpclientslist.Add(dhcpclient);
client = (IntPtr)((int)client + (int)Marshal.SizeOf(typeof(IntPtr)));
}
return dhcpclientslist;
}
public static void DhcpCreateClientInfo(string ServerIpAddress, DhcpClient dhcpClient)
{
DHCP_CLIENT_INFO clientInfo = ConvertClientInfoToNative(dhcpClient);
int error = dhcpsapimethods.DhcpCreateClientInfo(ServerIpAddress, ref clientInfo);
if (error != 0) {
Console.WriteLine(error);
Console.ReadLine();
}
}
public static DATE_TIME ConvertDateTimeToNative(DhcpClient client)
{
DATE_TIME dTime = new DATE_TIME();
dTime.dwHighDateTime = (uint)(client.ClientLeaseExpires.ToFileTime() >> 32);
dTime.dwLowDateTime = (uint)(client.ClientLeaseExpires.ToFileTime() + 0xFFFFFFFF);
return dTime;
}