public static DHCPv6Packet AsError(DHCPv6Packet requestPacket, DHCPv6StatusCodes errorCode, DUID serverDuid)
{
DHCPv6Packet innerReceivedPacket = requestPacket.GetInnerPacket();
List <DHCPv6PacketOption> packetOptions = new List <DHCPv6PacketOption>();
{
foreach (var item in innerReceivedPacket.Options)
{
switch (item)
{
case DHCPv6PacketIdentityAssociationPrefixDelegationOption option:
if (errorCode == DHCPv6StatusCodes.NoAddrsAvail)
{
packetOptions.Add(DHCPv6PacketIdentityAssociationPrefixDelegationOption.NotAvailable(option));
}
else
{
packetOptions.Add(DHCPv6PacketIdentityAssociationPrefixDelegationOption.Error(option, errorCode));
}
break;
case DHCPv6PacketIdentityAssociationNonTemporaryAddressesOption option:
packetOptions.Add(DHCPv6PacketIdentityAssociationNonTemporaryAddressesOption.Error(option, errorCode));
break;
default:
break;
}
}
}
AddOptions(packetOptions, requestPacket, serverDuid, null, null, true);
DHCPv6Packet innerResponse = new DHCPv6Packet(DHCPv6PacketTypes.REPLY,
innerReceivedPacket.TransactionId,
packetOptions);
DHCPv6Packet response = ConstructPacketWithHeader(requestPacket, innerResponse);
return(response);
}
public static DHCPv6PacketIdentityAssociationNonTemporaryAddressesOption Error(DHCPv6PacketIdentityAssociationNonTemporaryAddressesOption item, DHCPv6StatusCodes statusCode) =>
new DHCPv6PacketIdentityAssociationNonTemporaryAddressesOption(item.Id, TimeSpan.Zero, TimeSpan.Zero, new DHCPv6PacketSuboption[] { new
DHCPv6PacketIdentityAssociationAddressSuboption(item.GetAddress(), TimeSpan.Zero, TimeSpan.Zero, new DHCPv6PacketSuboption[] {
new DHCPv6PacketStatusCodeSuboption(statusCode)
}
) });
public DHCPv6PacketStatusCodeSuboption(DHCPv6StatusCodes statusCode) : this(statusCode, String.Empty)
{
}
public DHCPv6PacketStatusCodeSuboption(DHCPv6StatusCodes statusCode, String message) : this((UInt16)statusCode, message)
{
}
protected static void CheckErrorPacket(DHCPv6Packet request,
IPv6Address expectedAdress, UInt32 iaId, DHCPv6Packet response, DHCPv6PrefixDelegation prefixDelegation, DHCPv6StatusCodes expectedStatusCode)
{
Assert.NotNull(response);
Assert.NotEqual(DHCPv6Packet.Empty, response);
Assert.True(response.IsValid);
Assert.Equal(DHCPv6PacketTypes.REPLY, response.GetInnerPacket().PacketType);
CheckIfPacketIsCorrectReply(request, response);
if (iaId != 0)
{
var iaOption = response.GetInnerPacket().GetNonTemporaryIdentiyAssocation(iaId);
Assert.NotNull(iaOption);
Assert.Equal(TimeSpan.Zero, iaOption.T1);
Assert.Equal(TimeSpan.Zero, iaOption.T2);
var uncastedSuboption = iaOption.Suboptions.First();
Assert.NotNull(uncastedSuboption);
Assert.IsAssignableFrom <DHCPv6PacketIdentityAssociationAddressSuboption>(uncastedSuboption);
var addressSubOption = (DHCPv6PacketIdentityAssociationAddressSuboption)uncastedSuboption;
Assert.Equal(expectedAdress, addressSubOption.Address);
Assert.Equal(TimeSpan.Zero, addressSubOption.PreferredLifetime);
Assert.Equal(TimeSpan.Zero, addressSubOption.ValidLifetime);
Assert.NotEmpty(addressSubOption.Suboptions);
Assert.Single(addressSubOption.Suboptions);
var uncastedSubSuboption = addressSubOption.Suboptions.First();
Assert.NotNull(uncastedSubSuboption);
Assert.IsAssignableFrom <DHCPv6PacketStatusCodeSuboption>(uncastedSubSuboption);
var statusSubOption = (DHCPv6PacketStatusCodeSuboption)uncastedSubSuboption;
Assert.Equal((UInt16)expectedStatusCode, statusSubOption.StatusCode);
//Assert.False(String.IsNullOrEmpty(statusSubOption.Message));
}
if (prefixDelegation != DHCPv6PrefixDelegation.None)
{
var iaOption = response.GetInnerPacket().GetPrefixDelegationIdentiyAssocation(prefixDelegation.IdentityAssociation);
Assert.NotNull(iaOption);
Assert.Equal(prefixDelegation.IdentityAssociation, iaOption.Id);
Assert.Equal(TimeSpan.Zero, iaOption.T1);
Assert.Equal(TimeSpan.Zero, iaOption.T2);
Assert.NotEmpty(iaOption.Suboptions);
Assert.Single(iaOption.Suboptions);
var uncastedSuboption = iaOption.Suboptions.First();
Assert.NotNull(uncastedSuboption);
Assert.IsAssignableFrom <DHCPv6PacketIdentityAssociationPrefixDelegationSuboption>(uncastedSuboption);
var addressSubOption = (DHCPv6PacketIdentityAssociationPrefixDelegationSuboption)uncastedSuboption;
Assert.Equal(prefixDelegation.Mask.Identifier, addressSubOption.PrefixLength);
Assert.NotEmpty(addressSubOption.Suboptions);
Assert.Single(addressSubOption.Suboptions);
Assert.Equal(TimeSpan.Zero, addressSubOption.PreferredLifetime);
Assert.Equal(TimeSpan.Zero, addressSubOption.ValidLifetime);
var uncastedSubSuboption = addressSubOption.Suboptions.First();
Assert.NotNull(uncastedSubSuboption);
Assert.IsAssignableFrom <DHCPv6PacketStatusCodeSuboption>(uncastedSubSuboption);
var statusSubOption = (DHCPv6PacketStatusCodeSuboption)uncastedSubSuboption;
Assert.Equal((UInt16)(expectedStatusCode == DHCPv6StatusCodes.NoAddrsAvail ? DHCPv6StatusCodes.NoPrefixAvail : expectedStatusCode), statusSubOption.StatusCode);
//Assert.False(String.IsNullOrEmpty(statusSubOption.Message));
}
}
public static DHCPv6PacketIdentityAssociationPrefixDelegationOption Error(DHCPv6PacketIdentityAssociationPrefixDelegationOption item, DHCPv6StatusCodes statusCode) =>
new DHCPv6PacketIdentityAssociationPrefixDelegationOption(item.Id, TimeSpan.Zero, TimeSpan.Zero, new DHCPv6PacketSuboption[] { new
DHCPv6PacketIdentityAssociationPrefixDelegationSuboption(TimeSpan.Zero, TimeSpan.Zero, item.GetPrefixLength(), item.GetNetworkAddress(), new DHCPv6PacketSuboption[] {
new DHCPv6PacketStatusCodeSuboption(statusCode)
}
) });