internal unsafe void SetFilter(pcap *pcapDescriptor)
{
if (\u003CModule\u003E.pcap_setfilter(pcapDescriptor, this._bpf) != 0)
{
throw PcapError.BuildInvalidOperation("Failed setting bpf filter", pcapDescriptor);
}
}
public static unsafe void Dump(string fileName, PcapDataLink dataLink, int snapshotLength, IEnumerable <Packet> packets)
{
if (packets == null)
{
throw new ArgumentNullException("packets");
}
pcap *pcapDescriptor = \u003CModule\u003E.pcap_open_dead(dataLink.Value, snapshotLength);
if ((IntPtr)pcapDescriptor == IntPtr.Zero)
{
throw new InvalidOperationException("Unable to open open a dead capture");
}
try
{
using (PacketDumpFile packetDumpFile = new PacketDumpFile(pcapDescriptor, fileName))
{
foreach (Packet packet in packets)
{
packetDumpFile.Dump(packet);
}
}
}
finally
{
\u003CModule\u003E.pcap_close(pcapDescriptor);
}
}
internal unsafe void Transmit(pcap *pcapDescriptor, [MarshalAs(UnmanagedType.U1)] bool isSync)
{
if (\u003CModule\u003E.pcap_sendqueue_transmit(pcapDescriptor, this._pcapSendQueue, isSync ? 1 : 0) < (uint)*(int *)((IntPtr)this._pcapSendQueue + 4L))
{
throw PcapError.BuildInvalidOperation("Failed transmiting packets from queue", pcapDescriptor);
}
}
public static unsafe string GetErrorMessage(pcap *pcapDescriptor)
{
sbyte *numPtr = \u003CModule\u003E.pcap_geterr(pcapDescriptor);
if ((IntPtr)numPtr == IntPtr.Zero)
{
return((string)null);
}
return(new string(numPtr));
}
private static unsafe pcap *PcapOpen(sbyte *source, int snapshotLength, PacketDeviceOpenAttributes attributes, int readTimeout, pcap_rmtauth *auth)
{
\u0024ArrayType\u0024\u0024\u0024BY0BAA\u0040D arrayTypeBy0BaAD;
pcap *pcapPtr = \u003CModule\u003E.pcap_open(source, snapshotLength, (int)attributes, readTimeout, auth, (sbyte *)&arrayTypeBy0BaAD);
if ((IntPtr)pcapPtr == IntPtr.Zero)
{
throw new InvalidOperationException(string.Format((IFormatProvider)CultureInfo.InvariantCulture, "Unable to open the adapter. Adapter name: {0}. Error: {1}", new object[2]
{
(object)new string(source),
(object)new string((sbyte *)&arrayTypeBy0BaAD)
}));
}
return(pcapPtr);
}
internal unsafe PacketCommunicator(pcap *pcapDescriptor, SocketAddress netmask)
{
}
internal PacketDumpFile(pcap *pcapDescriptor, string filename)
{
// ISSUE: unable to decompile the method.
}
private unsafe void Initialize(pcap *pcapDescriptor, string filterString, IpV4SocketAddress netmask)
{
// ISSUE: untyped stack allocation
long num1 = (long)__untypedstackalloc(\u003CModule\u003E.__CxxQueryExceptionSize());
basic_string\u003Cchar\u002Cstd\u003A\u003Achar_traits\u003Cchar\u003E\u002Cstd\u003A\u003Aallocator\u003Cchar\u003E\u0020\u003E stdAllocatorChar;
MarshalingServices.ManagedToUnmanagedString(&stdAllocatorChar, filterString);
// ISSUE: fault handler
try
{
uint num2 = 0U;
if (netmask != null)
{
num2 = netmask.Address.ToValue();
}
bpf_program *bpfProgramPtr1 = (bpf_program *)\u003CModule\u003E.@new(16UL);
bpf_program *bpfProgramPtr2;
if ((IntPtr)bpfProgramPtr1 != IntPtr.Zero)
{
// ISSUE: initblk instruction
__memset((IntPtr)bpfProgramPtr1, 0, 16L);
bpfProgramPtr2 = bpfProgramPtr1;
}
else
{
bpfProgramPtr2 = (bpf_program *)0;
}
this._bpf = bpfProgramPtr2;
try
{
if (\u003CModule\u003E.pcap_compile(pcapDescriptor, this._bpf, \u003CModule\u003E.std\u002Ebasic_string\u003Cchar\u002Cstd\u003A\u003Achar_traits\u003Cchar\u003E\u002Cstd\u003A\u003Aallocator\u003Cchar\u003E\u0020\u003E\u002Ec_str(&stdAllocatorChar), 1, num2) < 0)
{
throw new ArgumentException("An error has occured when compiling the filter <" + filterString + ">: " + PcapError.GetErrorMessage(pcapDescriptor));
}
}
catch (Exception ex1) when(
{
// ISSUE: unable to correctly present filter
uint num3 = (uint)Marshal.GetExceptionCode();
if (\u003CModule\u003E.__CxxExceptionFilter((void *)Marshal.GetExceptionPointers(), (void *)0, 0, (void *)0) != 0)
{
SuccessfulFiltering;
}
else
{
throw;
}
}
)
{
uint num4 = 0U;
\u003CModule\u003E.__CxxRegisterExceptionObject((void *)Marshal.GetExceptionPointers(), (void *)num1);
try
{
try
{
\u003CModule\u003E.delete((void *)this._bpf);
\u003CModule\u003E._CxxThrowException((void *)0, (_s__ThrowInfo *)0);
}
catch (Exception ex2) when(
{
// ISSUE: unable to correctly present filter
num4 = (uint)\u003CModule\u003E.__CxxDetectRethrow((void *)Marshal.GetExceptionPointers());
if ((int)num4 != 0)
{
SuccessfulFiltering;
}
else
{
throw;
}
}
)
{
}
if ((int)num4 != 0)
{
throw;
}
}
internal unsafe BerkeleyPacketFilter(pcap *pcapDescriptor, string filterString, IpV4SocketAddress netmask)
{
this.Initialize(pcapDescriptor, filterString, netmask);
}
public static unsafe InvalidOperationException BuildInvalidOperation(string errorMessage, pcap *pcapDescriptor)
{
StringBuilder stringBuilder = new StringBuilder(errorMessage);
if ((IntPtr)pcapDescriptor != IntPtr.Zero)
{
sbyte *numPtr = \u003CModule\u003E.pcap_geterr(pcapDescriptor);
string str = (IntPtr)numPtr != IntPtr.Zero ? new string(numPtr) : (string)null;
if (!string.IsNullOrEmpty(str))
{
stringBuilder.Append(". WinPcap Error: ");
stringBuilder.Append(str);
}
}
return(new InvalidOperationException(stringBuilder.ToString()));
}
