add dhcp support

Author: vbBerni

PcapDotNet/src/PcapDotNet.Packets.Test/DhcpTests.cs

@@ -0,0 +1,84 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using PcapDotNet.Packets.Dhcp;
+using PcapDotNet.Packets.Ethernet;
+using PcapDotNet.Packets.IpV4;
+using PcapDotNet.Packets.TestUtils;
+using PcapDotNet.Packets.Transport;
+
+namespace PcapDotNet.Packets.Test
+{
+    /// <summary>
+    /// Summary description for ArpTests
+    /// </summary>
+    [TestClass]
+    [ExcludeFromCodeCoverage]
+    public class DhcpTests
+    {
+        /// <summary>
+        /// Gets or sets the test context which provides
+        /// information about and functionality for the current test run.
+        /// </summary>
+        public TestContext TestContext { get; set; }
+
+        #region Additional test attributes
+
+        //
+        // You can use the following additional attributes as you write your tests:
+        //
+        // Use ClassInitialize to run code before running the first test in the class
+        // [ClassInitialize()]
+        // public static void MyClassInitialize(TestContext testContext) { }
+        //
+        // Use ClassCleanup to run code after all tests in a class have run
+        // [ClassCleanup()]
+        // public static void MyClassCleanup() { }
+        //
+        // Use TestInitialize to run code before running each test
+        // [TestInitialize()]
+        // public void MyTestInitialize() { }
+        //
+        // Use TestCleanup to run code after each test has run
+        // [TestCleanup()]
+        // public void MyTestCleanup() { }
+        //
+
+        #endregion Additional test attributes
+
+        [TestMethod]
+        public void RandomDhcpTest()
+        {
+            int seed = new Random().Next();
+            Console.WriteLine("Seed: " + seed);
+            Random random = new Random(seed);
+
+            for (int i = 0; i != 1000; ++i)
+            {
+                EthernetLayer ethernetLayer = random.NextEthernetLayer(EthernetType.None);
+
+                IpV4Layer ipV4Layer = random.NextIpV4Layer(null);
+                ipV4Layer.HeaderChecksum = null;
+
+                UdpLayer udpLayer = random.NextUdpLayer();
+                udpLayer.Checksum = null;
+
+                DhcpLayer dhcpLayer = random.NextDhcpLayer();
+
+                Packet packet = PacketBuilder.Build(DateTime.Now, ethernetLayer, ipV4Layer, udpLayer, dhcpLayer);
+
+                Assert.IsTrue(packet.IsValid, "IsValid");
+                DhcpLayer actualLayer = (DhcpLayer)packet.Ethernet.Ip.Udp.Dhcp.ExtractLayer();
+                if (!Object.Equals(dhcpLayer, actualLayer))
+                {
+                    Console.WriteLine(actualLayer);
+                }
+                Assert.AreEqual(dhcpLayer, actualLayer, "DHCP Layer");
+            }
+        }
+    }
+}

PcapDotNet/src/PcapDotNet.Packets.Test/PcapDotNet.Packets.Test.csproj

@@ -75,6 +75,7 @@
     <Compile Include="DatagramTests.cs" />
     <Compile Include="DataLinkTests.cs" />
     <Compile Include="DataSegmentTests.cs" />
+    <Compile Include="DhcpTests.cs" />
     <Compile Include="DnsTests.cs" />
     <Compile Include="EndianitiyTests.cs" />
     <Compile Include="EthernetTests.cs" />

PcapDotNet/src/PcapDotNet.Packets.TestUtils/PcapDotNet.Packets.TestUtils.csproj

@@ -76,6 +76,7 @@
   <ItemGroup>
     <Compile Include="HexEncoding.cs" />
     <Compile Include="RandomArpExtensions.cs" />
+    <Compile Include="RandomDhcpExtensions.cs" />
     <Compile Include="RandomDnsExtensions.cs" />
     <Compile Include="RandomEthernetExtensions.cs" />
     <Compile Include="RandomGreExtensions.cs" />