timy/EduNetworkBuilder
timy/EduNetworkBuilder
0
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Fixed issue where we need to go out same nic as we came in on (but different interface)

Browse Source
This commit is contained in:
Tim Young 2015-09-06 13:59:41 -05:00
parent 985e3d092d
commit 211fa6f2bb
5 changed files with 16 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
EduNetworkBuilder/NetworkCard.cs
View File

@ -392,8 +392,13 @@ namespace EduNetworkBuilder
case NicType.eth:
case NicType.wlan:
//see if it the packet dest is local to this nic
if (WhereFrom.hostname == "router0")
Console.WriteLine("wearehere");
foreach (NetworkInterface nf in interfaces.ToList())
{
if (tPacket.InboundNic != null && tPacket.InboundNic == this &&
tPacket.InboundInterface != null && tPacket.InboundInterface == nf)
continue; //skip sending it out this interface if it came in this interface.
if (tPacket.MyType == PacketType.arp_request && !nf.isLocal(tPacket.destIP))
continue; //only send out arp requests on local networks
nPacket = new Packet(tPacket);//Creates a new packet but sets isfresh=false

4
EduNetworkBuilder/NetworkDevice.cs
View File

@ -1366,7 +1366,7 @@ namespace EduNetworkBuilder
if ((tPacket.isFresh && !ExactMatch ) || (NeedsRouting && DoesRouting()) ||
IsWirelessForwarder())
{
if (nic == tPacket.InboundNic) break; //never send it out the nic it came in on
// if (nic == tPacket.InboundNic) break; //this case is dealt with in nic.SendPacketOutNic
//Pass it to the NIC to send out each nic+interface.
//The nic checks to see if it works and then processes it
string tMAC = tPacket.destMAC;
@ -2161,7 +2161,7 @@ namespace EduNetworkBuilder
ProcessArrival(tPacket);
return;
}
NetworkInterface nf = nc.LocalInterface(tPacket.destIP, tPacket.Tracking);
NetworkInterface nf = nc.LocalInterface(tPacket.sourceIP, tPacket.Tracking);
if(nf == null)
{
nf = nc.LocalInterface(tPacket.TsourceIP, tPacket.Tracking);

3
EduNetworkBuilder/NetworkInterface.cs
View File

@ -100,6 +100,7 @@ namespace EduNetworkBuilder
/// <param name="tPacket"></param>
public void ProcessOutboundPacket(Packet tPacket)
{
tPacket.InboundInterface = null; //forget the interface we had come in on now that we are leaving.
if (tPacket.sourceIP == null || tPacket.sourceIP.GetIP.ToIpString() == NB.ZeroIPString)
{
//This happens if we are starting a new packet. We should also do this if we are masquerading.
@ -114,6 +115,8 @@ namespace EduNetworkBuilder
if (tPacket.destIP != null && myIP.IsLocal(tPacket.destIP)) isgood = true;
if (myIP.NetworkAddress == myIP.GetIP) isgood = true;
tPacket.InboundInterface = this;
if(isgood)
{
//anything we should do here?

2
EduNetworkBuilder/Packet.cs
View File

@ -56,6 +56,7 @@ namespace EduNetworkBuilder
DateTime StartTime = DateTime.Now;
public NetworkCard OutboundNic = null;
public NetworkCard InboundNic = null;
public NetworkInterface InboundInterface = null;
public NetworkInterface OutboundIF = null;
public IPAddress OutboundIP = new IPAddress(NB.ZeroIPString);
public string OutboundMAC = "";
@ -326,6 +327,7 @@ namespace EduNetworkBuilder
{
if (theLink == null) return;
InboundNic = null;
InboundInterface = null;
WhereAmI = theLink;
MyStatus = PacketStatus.moving;
myLinkPercent = 0;

4
EduNetworkBuilder/Resources/ReleaseNotes.rtf
View File

@ -1,7 +1,9 @@
{\rtf1\ansi\ansicpg1252\deff0\nouicompat\deflang1033{\fonttbl{\f0\fnil\fcharset0 Calibri;}}
{\*\generator Riched20 10.0.10240}\viewkind4\uc1
\pard\sa200\sl276\slmult1\b\f0\fs22\lang9 Version 1.0.23 \par
\b0 * Fixed issues with broadcast packets\b\par
\b0 * Fixed issues with broadcast packets\par
* Fixed a network loop issue\par
* Fixed issue with multiple interfaces and being able to go out a different interface than we came in on\b\par
Version 1.0.22 09/01/2015\b0\par
* Added ssid and keys for wireless links\par
* Wireless will auto-disconnect if link is too long\par