public DHCPv6ConfirmHandledEvent(Guid scopeId, DHCPv6Packet request, ConfirmErrors error) : this(scopeId, request, DHCPv6Packet.Empty, error)
{
if (error == ConfirmErrors.NoError)
{
throw new ArgumentException("if a request has no error, a response packet is needed");
}
}
public DHCPv6InformRequestHandledEvent(Guid scopeId, DHCPv6Packet request, InformRequestErros error) : this(scopeId, request, DHCPv6Packet.Empty, error)
{
if (error == InformRequestErros.NoError)
{
throw new ArgumentException("if a request has no error, a response packet is needed");
}
}
public void FromByteArray_BooleanOption()
{
Random random = new Random();
UInt32 transactionId = (UInt32)random.Next(0, 256 * 256 * 256);
IPv6HeaderInformation header = new IPv6HeaderInformation(IPv6Address.FromString("fe80::1"), IPv6Address.FromString("fe80::2"));
UInt16 firstIdentifier = 4000;
UInt16 secondIdentifier = 4002;
DHCPv6Packet packet = new DHCPv6Packet(header, transactionId, DHCPv6PacketTypes.Solicit, new List <DHCPv6PacketOption>
{
new DHCPv6PacketBooleanOption(firstIdentifier, true),
new DHCPv6PacketBooleanOption(secondIdentifier, false),
}
);
try
{
DHCPv6PacketOptionFactory.AddOptionType(firstIdentifier, (data) => DHCPv6PacketBooleanOption.FromByteArray(data, 0), true);
DHCPv6PacketOptionFactory.AddOptionType(secondIdentifier, (data) => DHCPv6PacketBooleanOption.FromByteArray(data, 0), true);
CheckByteRepresentation(packet, header);
}
finally
{
DHCPv6PacketOptionFactory.RemoveOptionType(firstIdentifier);
DHCPv6PacketOptionFactory.RemoveOptionType(secondIdentifier);
}
}
public void GetInnerPacket_MultipleEncapsulated()
{
IPv6HeaderInformation header = new IPv6HeaderInformation(IPv6Address.FromString("fe80::1"), IPv6Address.FromString("fe80::2"));
Int32 depth = 10;
DHCPv6Packet expectedInnerPacket = DHCPv6Packet.AsInner(1, DHCPv6PacketTypes.REPLY, Array.Empty <DHCPv6PacketOption>());
DHCPv6Packet innerPacket = expectedInnerPacket;
for (int i = 0; i < depth; i++)
{
DHCPv6RelayPacket outerPacket = DHCPv6RelayPacket.AsInnerRelay(
true, 1,
IPv6Address.FromString("fe80::1"), IPv6Address.FromString("fe80::2"),
Array.Empty <DHCPv6PacketOption>(),
innerPacket);
innerPacket = outerPacket;
}
DHCPv6RelayPacket inputPacket = DHCPv6RelayPacket.AsOuterRelay(
header,
true, 1,
IPv6Address.FromString("fe80::1"), IPv6Address.FromString("fe80::2"),
Array.Empty <DHCPv6PacketOption>(),
innerPacket);
DHCPv6Packet actualInnerPacket = inputPacket.GetInnerPacket();
Assert.Equal(expectedInnerPacket, actualInnerPacket);
}
public void SerializeAndDeserialize()
{
Random random = new Random();
JsonSerializerSettings settings = new JsonSerializerSettings();
settings.Converters.Add(new IPv6AddressJsonConverter());
settings.Converters.Add(new DHCPv6PacketJsonConverter());
settings.Converters.Add(new IPv6HeaderInformationJsonConverter());
IPv6HeaderInformation header = new IPv6HeaderInformation(
random.GetIPv6Address(), random.GetIPv6Address());
DHCPv6Packet input = new DHCPv6Packet(header, random.NextUInt16(), DHCPv6PacketTypes.Solicit, new List <DHCPv6PacketOption>
{
new DHCPv6PacketIdentifierOption(DHCPv6PacketOptionTypes.ClientIdentifier, new UUIDDUID(Guid.NewGuid())),
new DHCPv6PacketIdentifierOption(DHCPv6PacketOptionTypes.ServerIdentifer, new UUIDDUID(Guid.NewGuid())),
}
);
String serialized = JsonConvert.SerializeObject(input, settings);
var actual = JsonConvert.DeserializeObject <DHCPv6Packet>(serialized, settings);
Assert.Equal(input, actual);
}
public void FromByteArray_IdentityAssociationForPrefixAddressesOption()
{
Random random = new Random();
UInt32 transactionId = (UInt32)random.Next(0, 256 * 256 * 256);
IPv6HeaderInformation header = new IPv6HeaderInformation(IPv6Address.FromString("fe80::1"), IPv6Address.FromString("fe80::2"));
DHCPv6Packet packet = new DHCPv6Packet(header, transactionId, DHCPv6PacketTypes.Solicit, new List <DHCPv6PacketOption>
{
new DHCPv6PacketIdentityAssociationPrefixDelegationOption(
random.NextUInt16(),
TimeSpan.FromSeconds(random.Next(0, 36000)),
TimeSpan.FromSeconds(random.Next(0, 36000)),
new List <DHCPv6PacketSuboption>
{
new DHCPv6PacketIdentityAssociationPrefixDelegationSuboption(
TimeSpan.FromSeconds(random.Next(0, 36000)),
TimeSpan.FromSeconds(random.Next(0, 36000)),
random.NextByte(),
IPv6Address.FromString("fe80::20"),
new List <DHCPv6PacketSuboption>()
{
new DHCPv6PacketStatusCodeSuboption(DHCPv6StatusCodes.Success, "Thanks for using DaAPI")
}
)
}
),
new DHCPv6PacketIPAddressOption(DHCPv6PacketOptionTypes.ServerUnicast, IPv6Address.FromString("fe80::1")),
}
);
CheckByteRepresentation(packet, header);
}
public void GetUniqueIdentifier()
{
Random random = new Random();
var resolver = new DHCPv6SimpleZyxelIESResolver();
Byte[] macAddress = random.NextBytes(6);
Int32 slotId = random.NextByte();
Int32 portId = random.NextByte();
DHCPv6Packet packet = GetPacket(random, macAddress, slotId, portId);
Byte[] actual = resolver.GetUniqueIdentifier(packet);
for (int i = 0; i < 4; i++)
{
Assert.Equal(0, actual[i]);
}
for (int i = 0; i < macAddress.Length; i++)
{
Assert.Equal(macAddress[i], actual[i + 4]);
}
Byte[] expectedInterfaceValue = GetExpectedByteSequence(slotId, portId);
for (int i = 0; i < expectedInterfaceValue.Length; i++)
{
Assert.Equal(expectedInterfaceValue[i], actual[i + macAddress.Length + 4]);
}
}
public void PacketMeetsCondition(Boolean shouldMeetCondition)
{
Random random = new Random();
String ipAddress = "fe80::1";
IPv6Address address = IPv6Address.FromString(ipAddress);
Mock <ISerializer> serializerMock = new Mock <ISerializer>(MockBehavior.Strict);
serializerMock.Setup(x => x.Deserialze <IPv6Address>(ipAddress)).Returns(address).Verifiable();
var resolver = new DHCPv6RelayAgentResolver();
resolver.ApplyValues(new Dictionary <String, String> {
{ "RelayAgentAddress", ipAddress },
}, serializerMock.Object);
var packet = DHCPv6RelayPacket.AsOuterRelay(new IPv6HeaderInformation(IPv6Address.FromString("fe80::1"), IPv6Address.FromString("fe80::2")),
true, 1, random.GetIPv6Address(), random.GetIPv6Address(), Array.Empty <DHCPv6PacketOption>(), DHCPv6RelayPacket.AsInnerRelay(
true, 0, shouldMeetCondition == true ? IPv6Address.FromString(ipAddress) : IPv6Address.FromString("2004::1"), IPv6Address.FromString("fe80::1"), new DHCPv6PacketOption[]
{
}, DHCPv6Packet.AsInner(random.NextUInt16(), DHCPv6PacketTypes.Solicit, Array.Empty <DHCPv6PacketOption>())));
Boolean result = resolver.PacketMeetsCondition(packet);
Assert.Equal(shouldMeetCondition, result);
serializerMock.Verify();
}
public void PacketMeetsCondition(Boolean isInSubnet)
{
Random random = new Random();
String ipAddress = "fe80::0";
Byte subnetmaskLength = 32;
IPv6Address address = IPv6Address.FromString(ipAddress);
IPv6SubnetMask mask = new IPv6SubnetMask(new IPv6SubnetMaskIdentifier(subnetmaskLength));
Mock <ISerializer> serializerMock = new Mock <ISerializer>(MockBehavior.Strict);
serializerMock.Setup(x => x.Deserialze <IPv6Address>(ipAddress)).Returns(address).Verifiable();
serializerMock.Setup(x => x.Deserialze <IPv6SubnetMask>(subnetmaskLength.ToString())).Returns(mask).Verifiable();
DHCPv6RelayAgentSubnetResolver resolver = new DHCPv6RelayAgentSubnetResolver();
resolver.ApplyValues(new Dictionary <String, String> {
{ "NetworkAddress", ipAddress },
{ "SubnetMask", subnetmaskLength.ToString() },
}, serializerMock.Object);
var packet = DHCPv6RelayPacket.AsOuterRelay(new IPv6HeaderInformation(IPv6Address.FromString("fe80::1"), IPv6Address.FromString("fe80::2")),
true, 1, random.GetIPv6Address(), random.GetIPv6Address(), Array.Empty <DHCPv6PacketOption>(), DHCPv6RelayPacket.AsInnerRelay(
true, 0, isInSubnet == true ? IPv6Address.FromString("fe80::1") : IPv6Address.FromString("2004::1"), IPv6Address.FromString("fe80::1"), new DHCPv6PacketOption[]
{
}, DHCPv6Packet.AsInner(random.NextUInt16(), DHCPv6PacketTypes.Solicit, Array.Empty <DHCPv6PacketOption>())));
Boolean result = resolver.PacketMeetsCondition(packet);
Assert.Equal(isInSubnet, result);
serializerMock.Verify();
}
private DHCPv6Packet GetPacket(Random random, Byte[] remoteId, Int32 slotId, Int32 portId, Int32 enterpriseId = 0, Boolean includeRelevantOptions = true)
{
IPv6HeaderInformation headerInformation =
new IPv6HeaderInformation(IPv6Address.FromString("fe80::1"), IPv6Address.FromString("fe80::2"));
var packetOptions = new List <DHCPv6PacketOption>
{
new DHCPv6PacketTrueOption(DHCPv6PacketOptionTypes.RapitCommit),
};
DHCPv6Packet innerPacket = DHCPv6Packet.AsInner(random.NextUInt16(),
DHCPv6PacketTypes.Solicit, packetOptions);
DHCPv6Packet innerRelayPacket = DHCPv6RelayPacket.AsInnerRelay(true, 1, random.GetIPv6Address(), random.GetIPv6Address(),
new DHCPv6PacketOption[]
{
new DHCPv6PacketIdentifierOption(DHCPv6PacketOptionTypes.ClientIdentifier, new UUIDDUID(random.NextGuid())),
includeRelevantOptions == true ? (DHCPv6PacketOption)(new DHCPv6PacketRemoteIdentifierOption((UInt32)enterpriseId, remoteId)) : new DHCPv6PacketTrueOption(DHCPv6PacketOptionTypes.RapitCommit),
includeRelevantOptions == true ? (DHCPv6PacketOption)(new DHCPv6PacketByteArrayOption(DHCPv6PacketOptionTypes.InterfaceId, GetExpectedByteSequence(slotId, portId))) : new DHCPv6PacketTimeOption(DHCPv6PacketOptionTypes.ElapsedTime, 10, DHCPv6PacketTimeOption.DHCPv6PacketTimeOptionUnits.Minutes)
}, innerPacket);
DHCPv6Packet outerRelayPacket = DHCPv6RelayPacket.AsOuterRelay(headerInformation, true, 1, random.GetIPv6Address(), random.GetIPv6Address(),
new DHCPv6PacketOption[]
{
new DHCPv6PacketByteArrayOption(DHCPv6PacketOptionTypes.InterfaceId, random.NextBytes(10)),
new DHCPv6PacketRemoteIdentifierOption(9, random.NextBytes(12))
}, innerRelayPacket);
return(outerRelayPacket);
}
public void PacketMeetsCondition_False_WrongPacketType()
{
Random random = new Random();
UInt32 enterpriseNumber = random.NextUInt32();
Int32 agentIndex = 2;
DHCPv6RemoteIdentifierEnterpriseNumberResolver resolver = new DHCPv6RemoteIdentifierEnterpriseNumberResolver(
Mock.Of <ILogger <DHCPv6RemoteIdentifierEnterpriseNumberResolver> >());
Mock <ISerializer> serializerMock = new Mock <ISerializer>(MockBehavior.Strict);
serializerMock.Setup(x => x.Deserialze <UInt32>(enterpriseNumber.ToString())).Returns(enterpriseNumber).Verifiable();
serializerMock.Setup(x => x.Deserialze <Int32?>(agentIndex.ToString())).Returns(agentIndex).Verifiable();
resolver.ApplyValues(new Dictionary <String, String>
{
{ "EnterpriseNumber", enterpriseNumber.ToString() },
{ "RelayAgentIndex", agentIndex.ToString() },
}, serializerMock.Object);
DHCPv6Packet packet = DHCPv6Packet.AsInner(random.NextUInt16(), DHCPv6PacketTypes.Solicit, Array.Empty <DHCPv6PacketOption>());
Boolean result = resolver.PacketMeetsCondition(packet);
Assert.False(result);
serializerMock.Verify();
}
public void FromByteArray_RelayPacket_SingleRelayPacket()
{
Random random = new Random();
UInt32 transactionId = (UInt32)random.Next(0, 256 * 256 * 256);
IPv6HeaderInformation header = new IPv6HeaderInformation(IPv6Address.FromString("fe80::1"), IPv6Address.FromString("fe80::2"));
DHCPv6Packet innerPacket = DHCPv6Packet.AsInner(transactionId, DHCPv6PacketTypes.Solicit, new List <DHCPv6PacketOption>
{
new DHCPv6PacketTrueOption(DHCPv6PacketOptionTypes.RapitCommit),
new DHCPv6PacketTrueOption(DHCPv6PacketOptionTypes.ReconfigureAccepte),
});
DHCPv6RelayPacket relayPacket = DHCPv6RelayPacket.AsOuterRelay(
header,
true,
random.NextByte(),
IPv6Address.FromString("fe80::acde"), IPv6Address.FromString("fe80::acdf"),
new List <DHCPv6PacketOption>
{
new DHCPv6PacketByteArrayOption(DHCPv6PacketOptionTypes.InterfaceId, random.NextBytes(23)),
new DHCPv6PacketRemoteIdentifierOption(random.NextUInt32(), random.NextBytes(15))
},
innerPacket);
CheckByteRepresentation(relayPacket, header);
}
public void PacketMeetsCondition(Boolean shouldMeetCondition)
{
Random random = new Random();
String duidBytes = "000300015CA62DD98800";
LinkLayerAddressDUID duid = new LinkLayerAddressDUID(
LinkLayerAddressDUID.DUIDLinkLayerTypes.Ethernet,
new Byte[] { 0x5c, 0xa6, 0x2d, 0xd9, 0x88, 0x00 });
Mock <ISerializer> serializerMock = new Mock <ISerializer>(MockBehavior.Strict);
serializerMock.Setup(x => x.Deserialze <String>(duidBytes)).Returns(duidBytes).Verifiable();
var resolver = new DHCPv6ClientDUIDResolver();
resolver.ApplyValues(new Dictionary <String, String> {
{ "ClientDuid", duidBytes },
}, serializerMock.Object);
var packet = DHCPv6RelayPacket.AsOuterRelay(new IPv6HeaderInformation(IPv6Address.FromString("fe80::1"), IPv6Address.FromString("fe80::2")),
true, 1, random.GetIPv6Address(), random.GetIPv6Address(), Array.Empty <DHCPv6PacketOption>(), DHCPv6RelayPacket.AsInnerRelay(
true, 0, IPv6Address.FromString("2004::1"), IPv6Address.FromString("fe80::1"), new DHCPv6PacketOption[]
{
}, DHCPv6Packet.AsInner(random.NextUInt16(), DHCPv6PacketTypes.Solicit, new[] { new DHCPv6PacketIdentifierOption(DHCPv6PacketOptionTypes.ClientIdentifier, shouldMeetCondition == true ? (DUID)duid : new UUIDDUID(random.NextGuid())) })));
Boolean result = resolver.PacketMeetsCondition(packet);
Assert.Equal(shouldMeetCondition, result);
serializerMock.Verify();
}
public async Task ShouldPacketBeFilterd_False()
{
DHCPv6Packet packet = DHCPv6Packet.AsInner(1, DHCPv6PacketTypes.Solicit, new List <DHCPv6PacketOption>());
List <Mock <IDHCPv6PacketFilter> > filterMocks = new List <Mock <IDHCPv6PacketFilter> >();
for (int i = 0; i < 10; i++)
{
Mock <IDHCPv6PacketFilter> filterMock = new Mock <IDHCPv6PacketFilter>(MockBehavior.Strict);
filterMock.Setup(x => x.ShouldPacketBeFiltered(packet)).ReturnsAsync(false).Verifiable();
filterMocks.Add(filterMock);
}
IDHCPv6PacketFilterEngine engine = new SimpleDHCPv6PacketFilterEngine(filterMocks.Select(x => x.Object),
Mock.Of <ILogger <SimpleDHCPv6PacketFilterEngine> >());
(bool, string)result = await engine.ShouldPacketBeFilterd(packet);
Assert.False(result.Item1);
Assert.True(String.IsNullOrEmpty(result.Item2));
foreach (var item in filterMocks)
{
item.Verify();
}
}
public void FromByteArray_IPAddressOption()
{
Random random = new Random();
UInt32 transactionId = (UInt32)random.Next(0, 256 * 256 * 256);
IPv6HeaderInformation header = new IPv6HeaderInformation(IPv6Address.FromString("fe80::1"), IPv6Address.FromString("fe80::2"));
UInt16 identifier = 6000;
DHCPv6Packet packet = new DHCPv6Packet(header, transactionId, DHCPv6PacketTypes.Solicit, new List <DHCPv6PacketOption>
{
new DHCPv6PacketIPAddressOption(DHCPv6PacketOptionTypes.ServerUnicast, IPv6Address.FromString("fe80::1")),
new DHCPv6PacketIPAddressOption(identifier, IPv6Address.FromString("fe80::2")),
}
);
try
{
DHCPv6PacketOptionFactory.AddOptionType(identifier, (data) => DHCPv6PacketIPAddressOption.FromByteArray(data, 0), true);
CheckByteRepresentation(packet, header);
}
finally
{
DHCPv6PacketOptionFactory.RemoveOptionType(identifier);
}
}
private DHCPv6Packet GetReleasePacket(
Random random, out IPv6Address usedAddress, out DUID clientDuid, out UInt32 iaId, Boolean withIdentity, params DHCPv6PacketOption[] options)
{
IPv6HeaderInformation headerInformation =
new IPv6HeaderInformation(IPv6Address.FromString("fe80::1"), IPv6Address.FromString("fe80::2"));
clientDuid = new UUIDDUID(random.NextGuid());
iaId = random.NextBoolean() == false?random.NextUInt32() : 0;
usedAddress = random.GetIPv6Address();
var packetOptions = new List <DHCPv6PacketOption>(options)
{
new DHCPv6PacketIdentifierOption(DHCPv6PacketOptionTypes.ClientIdentifier, clientDuid),
};
if (withIdentity == true)
{
packetOptions.Add(new DHCPv6PacketIdentityAssociationNonTemporaryAddressesOption(iaId, TimeSpan.FromSeconds(random.Next()), TimeSpan.FromSeconds(random.Next()), new DHCPv6PacketSuboption[]
{
new DHCPv6PacketIdentityAssociationAddressSuboption(usedAddress, TimeSpan.FromSeconds(random.Next()), TimeSpan.FromSeconds(random.Next()), Array.Empty <DHCPv6PacketSuboption>())
}));
}
DHCPv6Packet packet = DHCPv6Packet.AsOuter(headerInformation, random.NextUInt16(),
DHCPv6PacketTypes.RELEASE, packetOptions);
return(packet);
}
public void HandleRequest_ScopeNotFound(Boolean withPrefixDelegation)
{
Random random = new Random();
UInt32 prefixId = random.NextUInt32();
Byte prefixLength = (Byte)random.Next(20, 60);
IPv6Address prefixNetworkAddress = IPv6Address.FromString("fd01::0");
DHCPv6PacketOption[] options = Array.Empty <DHCPv6PacketOption>();
if (withPrefixDelegation == true)
{
options = new DHCPv6PacketOption[] {
new DHCPv6PacketIdentityAssociationPrefixDelegationOption(prefixId, TimeSpan.FromSeconds(random.Next()), TimeSpan.FromSeconds(random.Next()), new DHCPv6PacketSuboption[] {
new DHCPv6PacketIdentityAssociationPrefixDelegationSuboption(TimeSpan.FromSeconds(random.Next()), TimeSpan.FromSeconds(random.Next()), prefixLength, prefixNetworkAddress, Array.Empty <DHCPv6PacketSuboption>())
})
};
}
var packet = GetRequestPacket(random, out _, out DUID _, out UInt32 _, true, options);
GetMockupResolver(DHCPv6Packet.Empty, out Mock <IScopeResolverManager <DHCPv6Packet, IPv6Address> > scopeResolverMock);
DHCPv6RootScope rootScope = GetRootScope(scopeResolverMock);
DHCPv6Packet result = rootScope.HandleRequest(packet, GetServerPropertiesResolver());
Assert.Equal(DHCPv6Packet.Empty, result);
CheckEventAmount(1, rootScope);
CheckHandeledEvent(0, packet, result, rootScope, null, DHCPv6RequestHandledEvent.RequestErrors.ScopeNotFound);
}
public async Task Handle_ResponseAvaiable()
{
IPv6HeaderInformation headerInformation = new IPv6HeaderInformation(
IPv6Address.FromString("fe80::2"), IPv6Address.FromString("fe80::1"));
DHCPv6Packet packet = DHCPv6Packet.AsOuter(headerInformation, 1, DHCPv6PacketTypes.Solicit, new List <DHCPv6PacketOption>());
DHCPv6Packet reseponsePacket = DHCPv6Packet.AsOuter(IPv6HeaderInformation.AsResponse(headerInformation), 1, DHCPv6PacketTypes.ADVERTISE, new List <DHCPv6PacketOption>());
Mock <IDHCPv6LeaseEngine> leaseEngineMock = new Mock <IDHCPv6LeaseEngine>(MockBehavior.Strict);
leaseEngineMock.Setup(x => x.HandlePacket(packet)).ReturnsAsync(reseponsePacket).Verifiable();
Mock <IServiceBus> serviceBusMock = new Mock <IServiceBus>(MockBehavior.Strict);
serviceBusMock.Setup(x => x.Publish(It.Is <DHCPv6PacketReadyToSendMessage>(y => y.Packet == reseponsePacket))).Returns(Task.CompletedTask).Verifiable();
ValidDHCPv6PacketArrivedMessageHandler handler = new ValidDHCPv6PacketArrivedMessageHandler(
serviceBusMock.Object, leaseEngineMock.Object,
Mock.Of <ILogger <ValidDHCPv6PacketArrivedMessageHandler> >());
await handler.Handle(new ValidDHCPv6PacketArrivedMessage(packet), CancellationToken.None);
leaseEngineMock.Verify();
serviceBusMock.Verify();
}
public void PacketMeetsCondition_False_OptionNotPresented()
{
Random random = new Random();
String value = random.GetAlphanumericString();
Byte[] remoteIdentifierAsBytes = ASCIIEncoding.ASCII.GetBytes(value);
DHCPv6Packet packet = GetPacket(random, remoteIdentifierAsBytes, false);
Mock <ISerializer> serializerMock = new Mock <ISerializer>(MockBehavior.Strict);
serializerMock.Setup(x => x.Deserialze <String>(value)).Returns(value).Verifiable();
serializerMock.Setup(x => x.Deserialze <UInt16>("0")).Returns(0).Verifiable();
serializerMock.Setup(x => x.Deserialze <Boolean>("true")).Returns(true).Verifiable();
var resolver = new DHCPv6MilegateResolver();
resolver.ApplyValues(new Dictionary <String, String> {
{ "Value", value },
{ "Index", "0" },
{ "IsCaseSenstiveMatch", "true" },
}, serializerMock.Object);
Boolean result = resolver.PacketMeetsCondition(packet);
Assert.False(result);
serializerMock.Verify();
}
private DHCPv6Packet GetPacket(Random random, Byte[] remoteId, Boolean includeRemoteIdOption = true)
{
IPv6HeaderInformation headerInformation =
new IPv6HeaderInformation(IPv6Address.FromString("fe80::1"), IPv6Address.FromString("fe80::2"));
var packetOptions = new List <DHCPv6PacketOption>
{
new DHCPv6PacketTrueOption(DHCPv6PacketOptionTypes.RapitCommit),
};
DHCPv6Packet innerPacket = DHCPv6Packet.AsInner(random.NextUInt16(),
DHCPv6PacketTypes.Solicit, packetOptions);
DHCPv6Packet innerRelayPacket = DHCPv6RelayPacket.AsInnerRelay(true, 1, random.GetIPv6Address(), random.GetIPv6Address(),
new DHCPv6PacketOption[]
{
new DHCPv6PacketByteArrayOption(DHCPv6PacketOptionTypes.InterfaceId, random.NextBytes(10)),
includeRemoteIdOption == true ? (DHCPv6PacketOption)(new DHCPv6PacketRemoteIdentifierOption(3561, remoteId)) : new DHCPv6PacketTrueOption(DHCPv6PacketOptionTypes.RapitCommit)
}, innerPacket);
DHCPv6Packet outerRelayPacket = DHCPv6RelayPacket.AsOuterRelay(headerInformation, true, 1, random.GetIPv6Address(), random.GetIPv6Address(),
new DHCPv6PacketOption[]
{
new DHCPv6PacketByteArrayOption(DHCPv6PacketOptionTypes.InterfaceId, random.NextBytes(10)),
new DHCPv6PacketRemoteIdentifierOption(9, random.NextBytes(12))
}, innerRelayPacket);
return(outerRelayPacket);
}
public async Task ShouldPacketBeFilterd_True(Int32 filterAmount, Int32 index)
{
DHCPv6Packet packet = DHCPv6Packet.AsInner(1, DHCPv6PacketTypes.Solicit, new List <DHCPv6PacketOption>());
List <Mock <IDHCPv6PacketFilter> > filterMocks = new List <Mock <IDHCPv6PacketFilter> >();
for (int i = 0; i < filterAmount; i++)
{
Mock <IDHCPv6PacketFilter> filterMock = new Mock <IDHCPv6PacketFilter>(MockBehavior.Strict);
filterMock.Setup(x => x.ShouldPacketBeFiltered(packet)).ReturnsAsync(i == index).Verifiable();
filterMocks.Add(filterMock);
}
IDHCPv6PacketFilterEngine engine = new SimpleDHCPv6PacketFilterEngine(filterMocks.Select(x => x.Object),
Mock.Of <ILogger <SimpleDHCPv6PacketFilterEngine> >());
(bool, string)result = await engine.ShouldPacketBeFilterd(packet);
Assert.True(result.Item1);
Assert.False(String.IsNullOrEmpty(result.Item2));
for (int i = 0; i < filterMocks.Count; i++)
{
var filterMock = filterMocks[i];
if (i <= index)
{
filterMock.Verify();
}
else
{
filterMock.Verify(x => x.ShouldPacketBeFiltered(packet), Times.Never);
}
}
}
public void HandleRequest_OnlyPrefix_LeaseFound_LeaseIsPending()
{
Random random = new Random();
UInt32 prefixId = random.NextUInt32();
Byte prefixLength = (Byte)random.Next(20, 60);
IPv6Address prefixNetworkAddress = IPv6Address.FromString("fd01::0");
var packet = GetRequestPacket(random, out IPv6Address leasedAddress, out DUID clientDuid, out UInt32 iaId, false, new DHCPv6PacketIdentityAssociationPrefixDelegationOption(prefixId, TimeSpan.FromSeconds(random.Next()), TimeSpan.FromSeconds(random.Next()), new DHCPv6PacketSuboption[] {
new DHCPv6PacketIdentityAssociationPrefixDelegationSuboption(TimeSpan.FromSeconds(random.Next()), TimeSpan.FromSeconds(random.Next()), prefixLength, prefixNetworkAddress, Array.Empty <DHCPv6PacketSuboption>())
}));
var resolverInformations = GetMockupResolver(packet, out Mock <IScopeResolverManager <DHCPv6Packet, IPv6Address> > scopeResolverMock);
Guid scopeId = random.NextGuid();
Guid leaseId = random.NextGuid();
DHCPv6RootScope rootScope = GetRootScope(scopeResolverMock);
rootScope.Load(new List <DomainEvent> {
new DHCPv6ScopeEvents.DHCPv6ScopeAddedEvent(
new DHCPv6ScopeCreateInstruction
{
AddressProperties = new DHCPv6ScopeAddressProperties(
IPv6Address.FromString("fe80::0"),
IPv6Address.FromString("fe80::ff"),
new List <IPv6Address> {
IPv6Address.FromString("fe80::1")
},
preferredLifeTime: TimeSpan.FromDays(0.5),
validLifeTime: TimeSpan.FromDays(1),
addressAllocationStrategy: DHCPv6ScopeAddressProperties.AddressAllocationStrategies.Next),
ResolverInformation = resolverInformations,
Name = "Testscope",
Id = scopeId,
}),
new DHCPv6LeaseCreatedEvent
{
EntityId = leaseId,
Address = leasedAddress,
ClientIdentifier = clientDuid,
IdentityAssocationId = iaId,
ScopeId = scopeId,
StartedAt = DateTime.UtcNow,
ValidUntil = DateTime.UtcNow.AddDays(1),
HasPrefixDelegation = true,
PrefixLength = prefixLength,
IdentityAssocationIdForPrefix = prefixId,
DelegatedNetworkAddress = prefixNetworkAddress,
},
});
DHCPv6Packet result = rootScope.HandleRequest(packet, GetServerPropertiesResolver());
CheckErrorPacket(packet, leasedAddress, 0, result, DHCPv6PrefixDelegation.FromValues(prefixNetworkAddress, new IPv6SubnetMask(new IPv6SubnetMaskIdentifier(prefixLength)), prefixId), DHCPv6StatusCodes.NoAddrsAvail);
CheckEventAmount(1, rootScope);
CheckHandeledEvent(0, packet, result, rootScope, scopeId, DHCPv6RequestHandledEvent.RequestErrors.LeasePendingButOnlyPrefixRequested);
}
public Task <Boolean> ShouldPacketBeFiltered(DHCPv6Packet packet)
{
_logger.LogDebug("ShouldPacketBeFiltered");
Boolean result = base.FilterByRateLimit(packet.Header.Source, PacketsPerSecons);
return(Task.FromResult(result));
}
private static DHCPv6RelayPacket GeneratePacket(Random random, uint enterpriseNumber)
{
return(DHCPv6RelayPacket.AsOuterRelay(
new IPv6HeaderInformation(IPv6Address.FromString("fe80::1"), IPv6Address.FromString("fe80::2")), true, 0,
IPv6Address.FromString("fe80::1"), IPv6Address.FromString("fe80::1"), new DHCPv6PacketOption[]
{
new DHCPv6PacketRemoteIdentifierOption(enterpriseNumber, random.NextBytes(20)),
}, DHCPv6Packet.AsInner(random.NextUInt16(), DHCPv6PacketTypes.Solicit, Array.Empty <DHCPv6PacketOption>())));
}
public DHCPv6ConfirmHandledEvent(DHCPv6Packet request, DHCPv6Packet response, ConfirmErrors error) : base(request, response, error == ConfirmErrors.NoError)
{
if (error != ConfirmErrors.ScopeNotFound)
{
throw new ArgumentException("a scope id has to be specified if an error different from 'ScopeNotFound' is used");
}
Error = error;
}
public DHCPv6DeclineHandledEvent(DHCPv6Packet request, DeclineErros error) : base(request, DHCPv6Packet.Empty, false)
{
if (error != DeclineErros.ScopeNotFound)
{
throw new ArgumentException("a scope id has to be specified if an error different from 'ScopeNotFound' is used");
}
Error = error;
}
public void HandleConfirm_LeaseNotFound(Boolean withAddress, Boolean withPrefix)
{
Random random = new Random();
var packet = GetRelayedConfirmPacket(random, out IPv6Address leasedAddress, out DUID _, out UInt32 iaId, out DHCPv6PrefixDelegation prefix, withAddress, withPrefix);
var resolverInformations = GetMockupResolver(packet, out Mock <IScopeResolverManager <DHCPv6Packet, IPv6Address> > scopeResolverMock);
Guid scopeId = random.NextGuid();
Guid leaseId = random.NextGuid();
DateTime leaseCreatedAt = DateTime.UtcNow;
DHCPv6RootScope rootScope = GetRootScope(scopeResolverMock);
rootScope.Load(new List <DomainEvent> {
new DHCPv6ScopeEvents.DHCPv6ScopeAddedEvent(
new DHCPv6ScopeCreateInstruction
{
AddressProperties = new DHCPv6ScopeAddressProperties(
IPv6Address.FromString("fe80::0"),
IPv6Address.FromString("fe80::ff"),
new List <IPv6Address> {
IPv6Address.FromString("fe80::1")
},
t1: DHCPv6TimeScale.FromDouble(0.5),
t2: DHCPv6TimeScale.FromDouble(0.75),
preferredLifeTime: TimeSpan.FromDays(0.5),
validLifeTime: TimeSpan.FromDays(1),
reuseAddressIfPossible: true),
ResolverInformation = resolverInformations,
Name = "Testscope",
Id = scopeId,
}),
new DHCPv6LeaseCreatedEvent
{
EntityId = leaseId,
Address = leasedAddress,
ClientIdentifier = new UUIDDUID(random.NextGuid()),
IdentityAssocationId = iaId,
ScopeId = scopeId,
StartedAt = leaseCreatedAt,
ValidUntil = DateTime.UtcNow.AddDays(1),
HasPrefixDelegation = withPrefix,
PrefixLength = withPrefix == false ? (Byte)0 : prefix.Mask.Identifier,
DelegatedNetworkAddress = withPrefix == false ? IPv6Address.Empty : prefix.NetworkAddress,
IdentityAssocationIdForPrefix = withPrefix == false ? 0 : prefix.IdentityAssociation,
},
});
DHCPv6Packet result = rootScope.HandleConfirm(packet, GetServerPropertiesResolver());
Assert.Equal(DHCPv6Packet.Empty, result);
CheckEventAmount(1, rootScope);
CheckHandeledEvent(0, packet, result, rootScope, scopeId, DHCPv6ConfirmHandledEvent.ConfirmErrors.LeaseNotFound);
}
public DHCPv6Packet GetPacket()
{
if (_packet == null)
{
_packet = DHCPv6Packet.FromByteArray(Content,
new IPv6HeaderInformation(IPv6Address.FromString(Header.Source), IPv6Address.FromString(Header.Destination)));
}
return(_packet);
}
public async Task HandleInvalidPacket()
{
Random random = new Random();
String dbName = $"{random.Next()}";
var(client, serviceBus) = GetTestClient(dbName);
try
{
IPv6HeaderInformation headerInformation = new IPv6HeaderInformation(
IPv6Address.FromString("fe80::2"), IPv6Address.FromString("fe80::1"));
DHCPv6Packet packet = DHCPv6RelayPacket.AsOuterRelay(headerInformation, true, 1, IPv6Address.FromString("fe80::3"), IPv6Address.FromString("fe80::4"), Array.Empty <DHCPv6PacketOption>(),
DHCPv6Packet.AsInner(1, DHCPv6PacketTypes.ADVERTISE, new List <DHCPv6PacketOption>()));
var message = new DHCPv6PacketArrivedMessage(packet);
await serviceBus.Publish(message);
await Task.Delay(2000);
StorageContext initicalContext = DatabaseTestingUtility.GetTestDatabaseContext(dbName);
Int32 tries = 10;
while (tries-- > 0)
{
if (initicalContext.DHCPv6PacketEntries.Count() == 1)
{
break;
}
await Task.Delay(1000);
}
Assert.Equal(1, await initicalContext.DHCPv6PacketEntries.AsQueryable().CountAsync());
var firstEntry = await initicalContext.DHCPv6PacketEntries.AsQueryable().FirstAsync();
Assert.NotEqual(Guid.Empty, firstEntry.Id);
Assert.False(firstEntry.InvalidRequest);
Assert.Equal(packet.GetSize(), firstEntry.RequestSize);
Assert.Equal(DHCPv6PacketTypes.ADVERTISE, firstEntry.RequestType);
Assert.Equal(nameof(DHCPv6PacketConsistencyFilter), firstEntry.FilteredBy);
Assert.True((DateTime.UtcNow - firstEntry.Timestamp).TotalSeconds < 20);
Assert.NotEqual(DateTime.MinValue, firstEntry.TimestampDay);
Assert.NotEqual(DateTime.MinValue, firstEntry.TimestampWeek);
Assert.NotEqual(DateTime.MinValue, firstEntry.TimestampMonth);
}
finally
{
await DatabaseTestingUtility.DeleteDatabase(dbName);
}
}
public void GetUniqueIdentifier()
{
Random random = new Random();
var resolver = new DHCPv6MilegateResolver();
Byte[] identifierValue = random.NextBytes(40);
DHCPv6Packet packet = GetPacket(random, identifierValue);
Assert.Equal(identifierValue, resolver.GetUniqueIdentifier(packet));
}
