public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
DHCPv4Packet packet = (DHCPv4Packet)value;
Byte[] bytes = packet.GetAsStream();
serializer.Serialize(writer, new DHCPv4PacketSerializerInfo
{
Header = (IPv4HeaderInformation)packet.Header,
Stream = bytes,
});
}
public DHCPv4PacketInformation(DHCPv4Packet packet)
{
Content = packet.GetAsStream();
Header = new SimplifiedIPv4HeaderInformation(packet.Header);
}
public async Task SendAndReceive()
{
Random random = new Random();
String dbName = $"{random.Next()}";
String eventStorePrefix = random.GetAlphanumericString();
var serviceInteractions = GetTestClient(dbName, eventStorePrefix);
Byte[] opt82Value = random.NextBytes(10);
try
{
//Get and Add Interface
var interfacesResult = await serviceInteractions.GetAsync("/api/interfaces/dhcpv4/");
var interfaces = await IsObjectResult <DHCPv4InterfaceOverview>(interfacesResult);
DHCPv4InterfaceEntry usedInterface = null;
foreach (var item in interfaces.Entries)
{
try
{
var createInterfaceResult = await serviceInteractions.PostAsync("/api/interfaces/dhcpv4/", GetContent(new
{
name = "my test interface",
ipv4Address = item.IPv4Address,
interfaceId = item.PhysicalInterfaceId
}));
Guid interfaceDaAPIId = await IsObjectResult <Guid>(createInterfaceResult);
Assert.NotEqual(Guid.Empty, interfaceDaAPIId);
usedInterface = item;
break;
}
catch (Exception)
{
continue;
}
}
Assert.NotNull(usedInterface);
var interfaceAddress = IPv4Address.FromString(usedInterface.IPv4Address);
//Create scope
var createScopeResult = await serviceInteractions.PostAsync("/api/scopes/dhcpv4/", GetContent(new
{
name = "Testscope",
id = Guid.NewGuid(),
addressProperties = new
{
start = "192.168.10.1",
end = "192.168.10.254",
excludedAddresses = new[] { "192.168.10.1" },
preferredLifetime = TimeSpan.FromDays(0.8),
leaseTime = TimeSpan.FromDays(1),
renewalTime = TimeSpan.FromDays(0.5),
maskLength = 24,
supportDirectUnicast = true,
acceptDecline = true,
informsAreAllowd = true,
reuseAddressIfPossible = true,
addressAllocationStrategy = Beer.DaAPI.Shared.Requests.DHCPv4ScopeRequests.V1.DHCPv4ScopeAddressPropertyReqest.AddressAllocationStrategies.Next
},
resolver = new
{
typename = nameof(DHCPv4Option82Resolver),
propertiesAndValues = new Dictionary <String, String>
{
{ nameof(DHCPv4Option82Resolver.Value), System.Text.Json.JsonSerializer.Serialize(opt82Value) },
}
}
}));
Guid scopeId = await IsObjectResult <Guid>(createScopeResult);
Assert.NotEqual(Guid.Empty, scopeId);
IPAddress address = new IPAddress(interfaceAddress.GetBytes());
IPEndPoint ownEndPoint = new IPEndPoint(address, 68);
IPEndPoint serverEndPoint = new IPEndPoint(address, 67);
UdpClient client = new UdpClient(ownEndPoint);
IPv4HeaderInformation headerInformation =
new IPv4HeaderInformation(IPv4Address.FromString(address.ToString()), IPv4Address.Broadcast);
DHCPv4Packet discoverPacket = new DHCPv4Packet(
headerInformation, random.NextBytes(6), (UInt32)random.Next(),
IPv4Address.Empty, IPv4Address.Empty, IPv4Address.Empty, DHCPv4PacketFlags.Broadcast,
new DHCPv4PacketMessageTypeOption(DHCPv4MessagesTypes.Discover),
new DHCPv4PacketRawByteOption(82, opt82Value),
new DHCPv4PacketClientIdentifierOption(DHCPv4ClientIdentifier.FromIdentifierValue("my custom client")));
byte[] discoverPacketStream = discoverPacket.GetAsStream();
await client.SendAsync(discoverPacketStream, discoverPacketStream.Length, serverEndPoint);
await Task.Delay(2000);
var content = await client.ReceiveAsync();
Byte[] receivedBytes = content.Buffer;
DHCPv4Packet response = DHCPv4Packet.FromByteArray(receivedBytes, new IPv4HeaderInformation(interfaceAddress, interfaceAddress));
Assert.NotNull(response);
Assert.True(response.IsValid);
var serverIdentifierOption = response.GetOptionByIdentifier(DHCPv4OptionTypes.ServerIdentifier) as DHCPv4PacketAddressOption;
Assert.NotNull(serverIdentifierOption);
Assert.Equal(interfaceAddress, serverIdentifierOption.Address);
var subnetOption = response.GetOptionByIdentifier(DHCPv4OptionTypes.SubnetMask) as DHCPv4PacketAddressOption;
Assert.NotNull(subnetOption);
Assert.Equal(IPv4Address.FromString("255.255.255.0"), subnetOption.Address);
var clientIdentifierOption = response.GetOptionByIdentifier(DHCPv4OptionTypes.ClientIdentifier) as DHCPv4PacketClientIdentifierOption;
Assert.NotNull(clientIdentifierOption);
Assert.Equal("my custom client", clientIdentifierOption.Identifier.IdentifierValue);
Assert.Equal(DUID.Empty, clientIdentifierOption.Identifier.DUID);
Assert.Equal((UInt32)0, clientIdentifierOption.Identifier.IaId);
Assert.Empty(clientIdentifierOption.Identifier.HwAddress);
var incoming82Option = response.GetOptionByIdentifier(DHCPv4OptionTypes.Option82) as DHCPv4PacketRawByteOption;
Assert.NotNull(incoming82Option);
Assert.Equal(opt82Value, incoming82Option.OptionData);
}
finally
{
await EventStoreClientDisposer.CleanUp(eventStorePrefix, null);
await DatabaseTestingUtility.DeleteDatabase(dbName);
}
}
public async Task SeedDatabase(Boolean reset, StorageContext storageContext)
{
if (reset == true)
{
{
var packets = await storageContext.DHCPv6PacketEntries.AsQueryable().ToListAsync();
var entries = await storageContext.DHCPv6LeaseEntries.AsQueryable().ToListAsync();
storageContext.RemoveRange(packets);
storageContext.RemoveRange(entries);
}
{
var packets = await storageContext.DHCPv4PacketEntries.AsQueryable().ToListAsync();
var entries = await storageContext.DHCPv4LeaseEntries.AsQueryable().ToListAsync();
storageContext.RemoveRange(packets);
storageContext.RemoveRange(entries);
}
await storageContext.SaveChangesAsync();
}
if (storageContext.DHCPv6PacketEntries.Count() == 0)
{
DateTime start = DateTime.UtcNow.AddDays(-20);
DateTime end = DateTime.UtcNow.AddDays(20);
Int32 diff = (Int32)(end - start).TotalMinutes;
Random random = new Random();
List <DHCPv6PacketHandledEntryDataModel> dhcpv6PacketEntries = new List <DHCPv6PacketHandledEntryDataModel>();
var requestPacketTypes = new[] { DHCPv6PacketTypes.Solicit, DHCPv6PacketTypes.CONFIRM, DHCPv6PacketTypes.DECLINE, DHCPv6PacketTypes.REBIND, DHCPv6PacketTypes.RELEASE, DHCPv6PacketTypes.RENEW, DHCPv6PacketTypes.REQUEST };
for (int i = 0; i < 30_000; i++)
{
var request =
DHCPv6RelayPacket.AsOuterRelay(new IPv6HeaderInformation(IPv6Address.FromString("fe80::1"), IPv6Address.FromString("fe80::2")), true, 2, IPv6Address.FromString("faf::2"), IPv6Address.FromString("fefc::23"),
new DHCPv6PacketOption[] {
new DHCPv6PacketRemoteIdentifierOption((UInt32)random.Next(), GetRandomBytes(random)),
new DHCPv6PacketByteArrayOption(DHCPv6PacketOptionTypes.InterfaceId, GetRandomBytes(random)),
},
DHCPv6RelayPacket.AsInnerRelay(true, 1, IPv6Address.FromString("fe70::2"), IPv6Address.FromString("fecc::23"),
new DHCPv6PacketOption[] {
new DHCPv6PacketByteArrayOption(DHCPv6PacketOptionTypes.InterfaceId, GetRandomBytes(random)),
},
DHCPv6Packet.AsInner(
(UInt16)random.Next(0, UInt16.MaxValue),
random.NextDouble() > 0.3 ? DHCPv6PacketTypes.Solicit : DHCPv6PacketTypes.RELEASE,
new DHCPv6PacketOption[]
{
new DHCPv6PacketIdentifierOption(DHCPv6PacketOptionTypes.ServerIdentifer, new UUIDDUID(Guid.NewGuid())),
new DHCPv6PacketIdentifierOption(DHCPv6PacketOptionTypes.ClientIdentifier, new UUIDDUID(Guid.NewGuid())),
new DHCPv6PacketIdentityAssociationNonTemporaryAddressesOption((UInt32)random.Next()),
})));
var entry = new DHCPv6PacketHandledEntryDataModel
{
Id = Guid.NewGuid(),
Timestamp = start.AddMinutes(random.Next(0, diff)),
ScopeId = Guid.NewGuid(),
RequestType = requestPacketTypes[random.Next(0, requestPacketTypes.Length)],
RequestSize = request.GetSize(),
RequestStream = request.GetAsStream(),
RequestDestination = request.Header.Destionation.ToString(),
RequestSource = request.Header.Source.ToString(),
};
if (random.NextDouble() > 0.8)
{
entry.FilteredBy = "something";
}
else
{
if (random.NextDouble() > 0.8)
{
entry.InvalidRequest = true;
}
else
{
if (random.NextDouble() > 0.5)
{
entry.HandledSuccessfully = true;
entry.ErrorCode = 0;
var response = DHCPv6Packet.AsOuter(
new IPv6HeaderInformation(IPv6Address.FromString("fe80::1"), IPv6Address.FromString("fe80::2")),
(UInt16)random.Next(0, UInt16.MaxValue),
random.NextDouble() > 0.3 ? DHCPv6PacketTypes.REPLY : DHCPv6PacketTypes.ADVERTISE,
new DHCPv6PacketOption[]
{
new DHCPv6PacketIdentifierOption(DHCPv6PacketOptionTypes.ServerIdentifer, new UUIDDUID(Guid.NewGuid())),
new DHCPv6PacketIdentifierOption(DHCPv6PacketOptionTypes.ClientIdentifier, new UUIDDUID(Guid.NewGuid())),
DHCPv6PacketIdentityAssociationNonTemporaryAddressesOption.AsSuccess(
(UInt16)random.Next(0, UInt16.MaxValue), TimeSpan.FromMinutes(random.Next(30, 100)), TimeSpan.FromMinutes(random.Next(30, 100)), IPv6Address.FromString("fe80::100"),
TimeSpan.FromMinutes(random.Next(30, 100)), TimeSpan.FromMinutes(random.Next(30, 100))),
DHCPv6PacketIdentityAssociationPrefixDelegationOption.AsSuccess((UInt32)random.Next(), TimeSpan.FromMinutes(random.Next(30, 100)), TimeSpan.FromMinutes(random.Next(30, 100)),
(Byte)random.Next(30, 68), IPv6Address.FromString("fc:12::0"), TimeSpan.FromMinutes(random.Next(30, 100)), TimeSpan.FromMinutes(random.Next(30, 100))),
new DHCPv6PacketBooleanOption(DHCPv6PacketOptionTypes.Auth, random.NextDouble() > 0.5),
new DHCPv6PacketByteOption(DHCPv6PacketOptionTypes.Preference, (Byte)random.Next(0, 256)),
new DHCPv6PacketTrueOption(DHCPv6PacketOptionTypes.RapitCommit),
new DHCPv6PacketIPAddressOption(DHCPv6PacketOptionTypes.ServerUnicast, IPv6Address.FromString("fd::1")),
new DHCPv6PacketIPAddressListOption(48, new [] { IPv6Address.FromString("2001::1"), IPv6Address.FromString("2001::1") }),
});
entry.ResponseDestination = response.Header.Destionation.ToString();
entry.ResponseSource = response.Header.Source.ToString();
entry.ResponseStream = response.GetAsStream();
entry.ResponseSize = response.GetSize();
entry.ResponseType = random.NextDouble() > 0.3 ? DHCPv6PacketTypes.REPLY : DHCPv6PacketTypes.ADVERTISE;
}
else
{
entry.HandledSuccessfully = false;
entry.ErrorCode = random.Next(0, 5);
}
}
}
entry.SetTimestampDates();
dhcpv6PacketEntries.Add(entry);
}
List <DHCPv4PacketHandledEntryDataModel> dhcpv4PacketEntries = new();
var requestDHCPv4PacketTypes = new[] { DHCPv4MessagesTypes.Discover, DHCPv4MessagesTypes.Decline, DHCPv4MessagesTypes.Inform, DHCPv4MessagesTypes.Release, DHCPv4MessagesTypes.Request };
for (int i = 0; i < 30_000; i++)
{
var hwAddress = new Byte[6];
random.NextBytes(hwAddress);
var option82Value = new Byte[30];
random.NextBytes(option82Value);
var request =
new DHCPv4Packet(new IPv4HeaderInformation(IPv4Address.FromString("192.168.0.1"), IPv4Address.FromString("10.10.10.10")),
hwAddress, (UInt32)random.Next(), IPv4Address.FromString("0.0.0.0"), IPv4Address.FromString("192.168.0.5"), IPv4Address.FromString("0.0.0.0"),
DHCPv4PacketFlags.Unicast,
new DHCPv4PacketParameterRequestListOption(new DHCPv4OptionTypes[] { DHCPv4OptionTypes.NetworkTimeProtocolServers, DHCPv4OptionTypes.DNSServers, DHCPv4OptionTypes.Router, DHCPv4OptionTypes.DomainName }),
new DHCPv4PacketRawByteOption((Byte)DHCPv4OptionTypes.Option82, option82Value)
);
var entry = new DHCPv4PacketHandledEntryDataModel
{
Id = Guid.NewGuid(),
Timestamp = start.AddMinutes(random.Next(0, diff)),
ScopeId = Guid.NewGuid(),
RequestType = requestDHCPv4PacketTypes[random.Next(0, requestDHCPv4PacketTypes.Length)],
RequestSize = request.GetSize(),
RequestStream = request.GetAsStream(),
RequestDestination = request.Header.Destionation.ToString(),
RequestSource = request.Header.Source.ToString(),
};
if (random.NextDouble() > 0.8)
{
entry.FilteredBy = "something";
}
else
{
if (random.NextDouble() > 0.8)
{
entry.InvalidRequest = true;
}
else
{
if (random.NextDouble() > 0.5)
{
entry.HandledSuccessfully = true;
entry.ErrorCode = 0;
var response = new DHCPv4Packet(new IPv4HeaderInformation(IPv4Address.FromString("10.10.10.10"), IPv4Address.FromString("192.168.0.1")),
hwAddress, (UInt32)random.Next(), IPv4Address.FromString("0.0.0.0"), IPv4Address.FromString("192.168.0.5"), IPv4Address.FromString("192.168.0.15"),
DHCPv4PacketFlags.Unicast,
new DHCPv4PacketAddressListOption(DHCPv4OptionTypes.DNSServers, new[] { IPv4Address.FromString("1.1.1.1"), IPv4Address.FromString("8.8.8.8") }),
new DHCPv4PacketAddressOption(DHCPv4OptionTypes.Router, IPv4Address.FromString("192.168.0.253"))
);
entry.ResponseDestination = response.Header.Destionation.ToString();
entry.ResponseSource = response.Header.Source.ToString();
entry.ResponseStream = response.GetAsStream();
entry.ResponseSize = response.GetSize();
entry.ResponseType = random.NextDouble() > 0.3 ? DHCPv4MessagesTypes.Offer : DHCPv4MessagesTypes.Acknowledge;
}
else
{
entry.HandledSuccessfully = false;
entry.ErrorCode = random.Next(0, 5);
}
}
}
entry.SetTimestampDates();
dhcpv4PacketEntries.Add(entry);
}
List <DHCPv6LeaseEntryDataModel> dhcpv6LeaseEntries = new List <DHCPv6LeaseEntryDataModel>();
for (int i = 0; i < 30_000; i++)
{
Byte[] addressBytes = new byte[16];
Byte[] prefixBytes = new byte[16];
random.NextBytes(addressBytes);
random.NextBytes(prefixBytes);
DHCPv6LeaseEntryDataModel entryDataModel = new DHCPv6LeaseEntryDataModel
{
Id = Guid.NewGuid(),
Timestamp = start.AddMinutes(random.Next(0, diff)),
LeaseId = Guid.NewGuid(),
Address = IPv6Address.FromByteArray(addressBytes).ToString(),
EndReason = StatisticsControllerResponses.V1.ReasonToEndLease.Nothing,
ScopeId = Guid.NewGuid(),
Start = start.AddMinutes(random.Next(0, diff - 50)),
};
Int32 leaseDiff = (Int32)(end.AddDays(4) - entryDataModel.Start).TotalMinutes;
entryDataModel.End = entryDataModel.Start.AddMinutes(random.Next(10, leaseDiff));
TimeSpan lifetime = entryDataModel.End - entryDataModel.Start;
TimeSpan renewalTime = lifetime / 2;
TimeSpan rebindingTime = lifetime * (2.0 / 3.0);
entryDataModel.EndOfRenewalTime = entryDataModel.Start + renewalTime;
entryDataModel.EndOfPreferredLifetime = entryDataModel.Start + rebindingTime;
if (random.NextDouble() > 0.5)
{
entryDataModel.Prefix = IPv6Address.FromByteArray(prefixBytes).ToString();
entryDataModel.PrefixLength = (Byte)random.Next(48, 76);
}
dhcpv6LeaseEntries.Add(entryDataModel);
}
List <DHCPv4LeaseEntryDataModel> dhcpv4LeaseEntries = new();
for (int i = 0; i < 30_000; i++)
{
Byte[] addressBytes = new byte[4];
random.NextBytes(addressBytes);
DHCPv4LeaseEntryDataModel entryDataModel = new DHCPv4LeaseEntryDataModel
{
Id = Guid.NewGuid(),
Timestamp = start.AddMinutes(random.Next(0, diff)),
LeaseId = Guid.NewGuid(),
Address = IPv4Address.FromByteArray(addressBytes).ToString(),
EndReason = StatisticsControllerResponses.V1.ReasonToEndLease.Nothing,
ScopeId = Guid.NewGuid(),
Start = start.AddMinutes(random.Next(0, diff - 50)),
};
Int32 leaseDiff = (Int32)(end.AddDays(4) - entryDataModel.Start).TotalMinutes;
entryDataModel.End = entryDataModel.Start.AddMinutes(random.Next(10, leaseDiff));
TimeSpan lifetime = entryDataModel.End - entryDataModel.Start;
TimeSpan renewalTime = lifetime / 2;
TimeSpan rebindingTime = lifetime * (2.0 / 3.0);
entryDataModel.EndOfRenewalTime = entryDataModel.Start + renewalTime;
entryDataModel.EndOfPreferredLifetime = entryDataModel.Start + rebindingTime;
dhcpv4LeaseEntries.Add(entryDataModel);
}
storageContext.AddRange(dhcpv6PacketEntries);
storageContext.AddRange(dhcpv6LeaseEntries);
storageContext.AddRange(dhcpv4PacketEntries);
storageContext.AddRange(dhcpv4LeaseEntries);
storageContext.SaveChanges();
}
}
