internal DhcpServerPacketOption(DhcpServerOptionIds optionId, byte[] data)
{
id = optionId;
dataLong = default;
dataArray = data;
length = data.Length;
}
internal DhcpServerPacketOption(DhcpServerOptionIds optionId)
{
id = optionId;
dataLong = default;
dataArray = null;
length = 0;
}
public bool TryGetOption(DhcpServerOptionIds optionId, out DhcpServerPacketOption option)
{
if (TryGetOptionIndex(optionId, out var optionIndex))
{
option = DhcpServerPacketOption.Parse(Buffer, ref optionIndex);
return(true);
}
option = default;
return(false);
}
internal DhcpServerPacketOption(DhcpServerOptionIds optionId, ulong data, int length)
{
if (length > 8)
{
throw new ArgumentOutOfRangeException(nameof(length));
}
id = optionId;
dataLong = data;
dataArray = null;
this.length = length;
}
protected bool TryGetOptionIndex(DhcpServerOptionIds optionId, out int optionIndex)
{
var buffer = this.buffer ?? Buffer;
for (var offset = OptionsOffset; offset < buffer.Length;)
{
var optionTag = (DhcpServerOptionIds)buffer[offset];
if (optionTag == optionId)
{
optionIndex = offset;
return(true);
}
if (optionTag == DhcpServerOptionIds.End)
{
break;
}
switch (optionTag)
{
case DhcpServerOptionIds.Pad:
case DhcpServerOptionIds.End:
// 0-byte fixed length
offset++;
break;
case DhcpServerOptionIds.SubnetMask:
case DhcpServerOptionIds.TimeOffset:
// 4-byte fixed length
offset += 5;
break;
default:
// variable length
offset++;
offset += buffer[offset] + 1;
break;
}
}
optionIndex = -1;
return(false);
}
/// <summary> /// Queries the DHCP Server for the specified OptionId Value within a User Class /// </summary> /// <param name="className">The name of the User Class to retrieve the Option from</param> /// <param name="optionId">The identifier for the option value to retrieve</param> /// <returns>A <see cref="IDhcpServerOptionValue"/>.</returns> public IDhcpServerOptionValue GetUserOptionValue(string className, DhcpServerOptionIds optionId) => DhcpServerOptionValue.GetGlobalUserOptionValue(Server, className, (int)optionId);
/// <summary> /// Queries the DHCP Server for the specified OptionId Value from the Default options /// </summary> /// <param name="optionId">The identifier for the option value to retrieve</param> /// <returns>A <see cref="IDhcpServerOptionValue"/>.</returns> public IDhcpServerOptionValue GetDefaultOptionValue(DhcpServerOptionIds optionId) => DhcpServerOptionValue.GetGlobalDefaultOptionValue(Server, (int)optionId);
/// <summary> /// Retrieves the Option Value associated with the Option and Scope within a User Class /// </summary> /// <param name="className">The name of the User Class to retrieve the Option from</param> /// <param name="optionId">The identifier for the option value to retrieve</param> /// <returns>A <see cref="DhcpServerOptionValue"/>.</returns> public IDhcpServerOptionValue GetUserOptionValue(string className, DhcpServerOptionIds optionId) => DhcpServerOptionValue.GetScopeUserOptionValue(Scope, (int)optionId, className);
/// <summary> /// Retrieves the Option Value associated with the Option and Scope from the Default options /// </summary> /// <param name="optionId">The identifier for the option value to retrieve</param> /// <returns>A <see cref="DhcpServerOptionValue"/>.</returns> public IDhcpServerOptionValue GetDefaultOptionValue(DhcpServerOptionIds optionId) => DhcpServerOptionValue.GetScopeDefaultOptionValue(Scope, (int)optionId);
public void RemoveOptionValue(DhcpServerOptionIds optionId) => DhcpServerOptionValue.DeleteScopeOptionValue(Scope, (int)optionId);
/// <summary> /// Retrieves the Option Value associated with the Option and Scope Reservation from the Default options /// </summary> /// <param name="optionId">The identifier for the option value to retrieve</param> /// <returns>A <see cref="IDhcpServerOptionValue"/>.</returns> public IDhcpServerOptionValue GetDefaultOptionValue(DhcpServerOptionIds optionId) => DhcpServerOptionValue.GetScopeReservationDefaultOptionValue(Reservation, (int)optionId);
/// <summary> /// Queries the DHCP Server for the specified OptionId within a User Class /// </summary> /// <param name="className">The name of the User Class to retrieve the Option from</param> /// <param name="optionId">The identifier for the option to retrieve</param> /// <returns>A <see cref="IDhcpServerOption"/>.</returns> public IDhcpServerOption GetUserOption(string className, DhcpServerOptionIds optionId) => DhcpServerOption.GetUserOption(Server, className, (int)optionId);
/// <summary> /// Retrieves the Option Value associated with the Option and Scope within a Vendor Class /// </summary> /// <param name="vendorName">The name of the Vendor Class to retrieve the Option from</param> /// <param name="optionId">The identifier for the option value to retrieve</param> /// <returns>A <see cref="DhcpServerOptionValue"/>.</returns> public IDhcpServerOptionValue GetVendorOptionValue(string vendorName, DhcpServerOptionIds optionId) => DhcpServerOptionValue.GetScopeVendorOptionValue(Scope, (int)optionId, vendorName);
/// <summary> /// Queries the DHCP Server for the specified OptionId Value within a Vendor Class /// </summary> /// <param name="className">The name of the User Class to retrieve the Option from</param> /// <param name="optionId">The identifier for the option value to retrieve</param> /// <returns>A <see cref="IDhcpServerOptionValue"/>.</returns> public IDhcpServerOptionValue GetVendorOptionValue(string vendorName, DhcpServerOptionIds optionId) => DhcpServerOptionValue.GetGlobalVendorOptionValue(Server, vendorName, (int)optionId);
/// <summary> /// Retrieves the Option Value associated with the Option and Scope within a User Class /// </summary> /// <param name="className">The name of the User Class to retrieve the Option from</param> /// <param name="optionId">The identifier for the option value to retrieve</param> /// <returns>A <see cref="DhcpServerOptionValue"/>.</returns> public void RemoveUserOptionValue(string className, DhcpServerOptionIds optionId) => DhcpServerOptionValue.DeleteScopeUserOptionValue(Scope, (int)optionId, className);
/// <summary> /// Queries the DHCP Server for the specified OptionId from the Default options /// </summary> /// <param name="optionId">The identifier for the option to retrieve</param> /// <returns>A <see cref="IDhcpServerOption"/>.</returns> public IDhcpServerOption GetDefaultOption(DhcpServerOptionIds optionId) => DhcpServerOption.GetDefaultOption(Server, (int)optionId);
/// <summary> /// Retrieves the Option Value associated with the Option and Scope within a Vendor Class /// </summary> /// <param name="vendorName">The name of the Vendor Class to retrieve the Option from</param> /// <param name="optionId">The identifier for the option value to retrieve</param> /// <returns>A <see cref="DhcpServerOptionValue"/>.</returns> public void RemoveVendorOptionValue(string vendorName, DhcpServerOptionIds optionId) => DhcpServerOptionValue.DeleteScopeVendorOptionValue(Scope, (int)optionId, vendorName);
/// <summary> /// Queries the DHCP Server for the specified OptionId within a Vendor Class /// </summary> /// <param name="vendorName">The name of the Vendor Class to retrieve the Option from</param> /// <param name="optionId">The identifier for the option to retrieve</param> /// <returns>A <see cref="IDhcpServerOption"/>.</returns> public IDhcpServerOption GetVendorOption(string vendorName, DhcpServerOptionIds optionId) => DhcpServerOption.GetVendorOption(Server, vendorName, (int)optionId);
public void RemoveOptionValue(DhcpServerOptionIds optionId) => DhcpServerOptionValue.DeleteScopeReservationOptionValue(Reservation, (int)optionId);
