public static DhcpServerHardwareAddress FromNative(DhcpServerHardwareType type, IntPtr pointer, int length)
{
if (pointer == IntPtr.Zero)
{
throw new ArgumentNullException(nameof(pointer));
}
if (length > MaximumLength)
{
throw new ArgumentOutOfRangeException(nameof(length));
}
var hwAddr1 = 0UL;
var hwAddr2 = 0UL;
if (length == 0)
{
return(new DhcpServerHardwareAddress(type, (byte)length, hwAddr1, hwAddr2));
}
hwAddr1 = (ulong)BitHelper.ReadIntVar(pointer, 0, length > 7 ? 8 : length);
if (length > 8)
{
hwAddr2 = (ulong)BitHelper.ReadIntVar(pointer, 8, length - 8);
}
return(new DhcpServerHardwareAddress(type, (byte)length, hwAddr1, hwAddr2));
}
internal DhcpServerHardwareAddress(DhcpServerHardwareType type, byte length, ulong addr1, ulong addr2)
{
if (length > MaximumLength)
{
throw new ArgumentOutOfRangeException(nameof(length), $"Exceeds maximum length {MaximumLength}");
}
hwAddrType = type;
hwAddrLen = length;
hwAddr1 = addr1;
hwAddr2 = addr2;
}
public static DhcpServerHardwareAddress FromNative(DhcpServerHardwareType type, byte[] hardwareAddress)
{
if (hardwareAddress.Length > MaximumLength)
{
throw new ArgumentOutOfRangeException(nameof(hardwareAddress));
}
return(new DhcpServerHardwareAddress(
type,
(byte)hardwareAddress.Length,
Marshal(hardwareAddress, 0),
hardwareAddress.Length > 8 ? Marshal(hardwareAddress, 8) : 0UL));
}
public static DhcpServerHardwareAddress FromNative(DhcpServerHardwareType type, byte[] buffer, int hardwareAddressOffset, int hardwareAddressLength)
{
if (hardwareAddressLength > MaximumLength)
{
throw new ArgumentOutOfRangeException(nameof(hardwareAddressLength));
}
if (buffer == null)
{
throw new ArgumentNullException(nameof(buffer));
}
if (buffer.Length < hardwareAddressOffset + hardwareAddressLength)
{
throw new ArgumentOutOfRangeException(nameof(hardwareAddressOffset));
}
return(new DhcpServerHardwareAddress(
type,
(byte)hardwareAddressLength,
Marshal(buffer, hardwareAddressOffset, hardwareAddressLength),
hardwareAddressLength > 8 ? Marshal(buffer, hardwareAddressOffset + 8, hardwareAddressLength - 8) : 0UL));
}
internal static DhcpServerHardwareAddress FromNative(DhcpServerHardwareType type, byte hardwareAddressLength, ulong hardwareAddress1, ulong hardwareAddress2)
{
return(new DhcpServerHardwareAddress(type, hardwareAddressLength, hardwareAddress1, hardwareAddress2));
}