public void SetServerIp()
{
var packet = DhcpPacketBuilder.Create()
.WithGatewayIp(IPAddress.Parse("192.168.1.3"))
.Build();
Assert.Equal(IPAddress.Parse("192.168.1.3"), packet.GatewayIp);
}
public void SetClientIp()
{
var packet = DhcpPacketBuilder.Create()
.WithClientIp(IPAddress.Broadcast)
.Build();
Assert.Equal(IPAddress.Broadcast, packet.ClientIp);
}
public void SetSecs()
{
var packet = DhcpPacketBuilder.Create()
.WithSecs(50)
.Build();
Assert.Equal(50, packet.Secs);
}
public void SetTransactionIdFromUint()
{
var packet = DhcpPacketBuilder.Create()
.WithTransactionId(123456U)
.Build();
Assert.Equal(123456U, packet.TransactionId);
}
public void SetIsBroadcast()
{
var packet = DhcpPacketBuilder.Create()
.WithBroadcastFlag(true)
.Build();
Assert.True(packet.IsBroadcast);
}
public void SetHops()
{
var packet = DhcpPacketBuilder.Create()
.WithHops(50)
.Build();
Assert.Equal(50U, packet.Hops);
}
public void SetBootFile()
{
var packet = DhcpPacketBuilder.Create()
.WithBootFile("BootFile")
.Build();
Assert.Equal("BootFile", packet.BootFile);
}
public void SetYourIp()
{
var packet = DhcpPacketBuilder.Create()
.WithYourIp(IPAddress.Parse("192.168.1.1"))
.Build();
Assert.Equal(IPAddress.Parse("192.168.1.1"), packet.YourIp);
}
public void ReturnTrue_GivenPacketWhichContainsTheOption()
{
var packet = DhcpPacketBuilder.Create()
.WithOption(new DhcpTimeOffsetOption(0))
.Build();
Assert.True(packet.HasOption <DhcpTimeOffsetOption>());
}
public void SetServerName()
{
var packet = DhcpPacketBuilder.Create()
.WithServerName("ServerName")
.Build();
Assert.Equal("ServerName", packet.ServerName);
}
public void ReturnFalse_GivenPacketWhichDoesNotContainTheOption()
{
var packet = DhcpPacketBuilder.Create()
.WithOption(new DhcpTimeOffsetOption(0))
.Build();
Assert.False(packet.HasOption <DhcpSubnetMaskOption>());
}
public void SetOperationType()
{
var packet = DhcpPacketBuilder.Create()
.WithOperation(DhcpOperation.BootReply)
.Build();
Assert.Equal(DhcpOperation.BootReply, packet.Operation);
}
public void ThrowInvalidOperationException_GivenOptionTypePacketDoesNotContain()
{
var packet = DhcpPacketBuilder.Create()
.WithOption(new DhcpTimeOffsetOption(0))
.Build();
Assert.Throws <InvalidOperationException>(
() => packet.GetOption <DhcpSubnetMaskOption>());
}
public void SetClientHardwareAddress()
{
var packet = DhcpPacketBuilder.Create()
.WithClientHardwareAddress(ClientHardwareAddressType.Ethernet, new byte[] { 0xAA, 0x88 })
.Build();
Assert.Equal(ClientHardwareAddressType.Ethernet, packet.ClientHardwareAddress.Type);
Assert.Equal(new byte[] { 0xAA, 0x88 }, packet.ClientHardwareAddress.AddressBytes);
}
public void AddOption()
{
var option = new DhcpSubnetMaskOption(IPAddress.Broadcast);
var packet = DhcpPacketBuilder.Create()
.WithOption(option)
.Build();
Assert.True(ReferenceEquals(option, packet.GetOption <DhcpSubnetMaskOption>()));
}
public void ReturnOption()
{
var option = new DhcpTimeOffsetOption(0);
var packet = DhcpPacketBuilder.Create()
.WithOption(option)
.Build();
Assert.Equal(option, packet.GetOption <DhcpTimeOffsetOption>());
}
public DhcpPacket Deserialize(byte[] bytes)
{
var reader = new DhcpBinaryReader(bytes);
var packetBuilder = DhcpPacketBuilder.Create();
uint magicCookie;
try
{
packetBuilder.WithOperation((DhcpOperation)reader.ReadValue(DhcpBinaryValue.ByteLength).AsByte());
var clientHardwareAddressType =
(ClientHardwareAddressType)reader.ReadValue(DhcpBinaryValue.ByteLength).AsByte();
var clientHardwareAddressLength = reader.ReadValue(DhcpBinaryValue.ByteLength).AsByte();
packetBuilder.WithHops(reader.ReadValue(DhcpBinaryValue.ByteLength).AsByte());
packetBuilder.WithTransactionId(reader.ReadValue(DhcpBinaryValue.UnsignedInt32Length)
.AsUnsignedInt32());
packetBuilder.WithSecs(reader.ReadValue(DhcpBinaryValue.UnsignedInt16Length).AsUnsignedInt16());
packetBuilder.WithBroadcastFlag(
reader.ReadValue(DhcpBinaryValue.UnsignedInt16Length).AsUnsignedInt16() == BroadcastFlag);
packetBuilder.WithClientIp(reader.ReadValue(DhcpBinaryValue.IpAddressLength).AsIpAddress());
packetBuilder.WithYourIp(reader.ReadValue(DhcpBinaryValue.IpAddressLength).AsIpAddress());
packetBuilder.WithServerIp(reader.ReadValue(DhcpBinaryValue.IpAddressLength).AsIpAddress());
packetBuilder.WithGatewayIp(reader.ReadValue(DhcpBinaryValue.IpAddressLength).AsIpAddress());
var clientHardwareAddressBytes = ReadClientHardwareAddress(reader, clientHardwareAddressLength);
packetBuilder.WithClientHardwareAddress(clientHardwareAddressType, clientHardwareAddressBytes);
packetBuilder.WithServerName(reader.ReadValue(64).AsString());
packetBuilder.WithBootFile(reader.ReadValue(128).AsString());
magicCookie = reader.ReadValue(DhcpBinaryValue.UnsignedInt32Length).AsUnsignedInt32();
var options = _optionsSerializer.DeserializeOptions(reader);
packetBuilder.WithOptions(options);
}
catch (InvalidOperationException e)
{
throw new DhcpSerializationException("The packet is not a valid DHCP packet.", e);
}
catch (IndexOutOfRangeException e)
{
throw new DhcpSerializationException("The packet is not a valid DHCP packet.", e);
}
if (magicCookie != MagicCookie)
{
throw new DhcpSerializationException("The packet does not contain the Magic cookie. It can be a valid BOOTP packet, but it is not a DHCP packet.");
}
return(packetBuilder.Build());
}
public void ReplaceExistingOption()
{
var option1 = new DhcpSubnetMaskOption(IPAddress.Broadcast);
var option2 = new DhcpSubnetMaskOption(IPAddress.Broadcast);
var packet = DhcpPacketBuilder.Create()
.WithOption(option1)
.WithOption(option2)
.Build();
Assert.True(ReferenceEquals(option2, packet.GetOption <DhcpSubnetMaskOption>()));
}
public void ReplaceExistingOption()
{
var updatedOptions = new IDhcpOption[]
{
new DhcpTimeOffsetOption(0),
new DhcpSubnetMaskOption(IPAddress.Broadcast)
};
var packet = DhcpPacketBuilder.Create()
.WithOption(new DhcpTimeOffsetOption(0))
.WithOptions(updatedOptions)
.Build();
Assert.Equal(updatedOptions[0], packet.GetOption <DhcpTimeOffsetOption>());
}
public void AddOption()
{
var options = new IDhcpOption[]
{
new DhcpTimeOffsetOption(0),
new DhcpSubnetMaskOption(IPAddress.Broadcast),
};
var packet = DhcpPacketBuilder.Create()
.WithOptions(options)
.Build();
Assert.Equal(options[0], packet.GetOption <DhcpTimeOffsetOption>());
Assert.Equal(options[1], packet.GetOption <DhcpSubnetMaskOption>());
}