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Fix duplicate wireless link error

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This commit is contained in:
Tim Young
2015-08-28 13:58:27 -07:00
parent cf4538b585
commit 679d2f7010
4 changed files with 24 additions and 9 deletions
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1
EduNetworkBuilder/NetworkBuilder.cs
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@@ -752,6 +752,7 @@ namespace EduNetworkBuilder
//We are making a link
LinkEditor myEditor = new LinkEditor(ItemClickedOn, ReleasedOn);
myEditor.ShowDialog();
UpdateLinks();
pbNetworkView.Invalidate(); //In case any changes have been made
}
else if (ItemClickedOn == null)

16
EduNetworkBuilder/NetworkCard.cs
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@@ -394,7 +394,7 @@ namespace EduNetworkBuilder
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
if (nf.isLocal(tPacket.OutboundIP) || tPacket.OutboundIP.GetIPString == NB.BroadcastIPString)
if (tPacket.OutboundIP == null || (nf.isLocal(tPacket.OutboundIP) || tPacket.OutboundIP.GetIPString == NB.BroadcastIPString))
{
if ((nf != null && nf.myIP.GetIPString != NB.ZeroIPString) || nPacket.MyType == PacketType.dhcp_request)
{
@@ -442,7 +442,7 @@ namespace EduNetworkBuilder
foreach (NetworkInterface nf in interfaces.ToList())
{
nPacket = new Packet(tPacket);//Creates a new packet but sets isfresh=false
if (nf.isLocal(tPacket.OutboundIP) || tPacket.OutboundIP.GetIPString == NB.BroadcastIPString)
if (tPacket.OutboundIP != null && (nf.isLocal(tPacket.OutboundIP) || tPacket.OutboundIP.GetIPString == NB.BroadcastIPString))
{
if ((nf != null && nf.myIP != null && nf.myIP.GetIPString != NB.ZeroIPString) || nPacket.MyType == PacketType.dhcp_request)
{
@@ -531,7 +531,7 @@ namespace EduNetworkBuilder
//set it to be the ip of management interface
nPacket.sourceIP = WhereFrom.HubManagementIP();
}
if (nPacket.destMAC == null || nPacket.destMAC == "")
if (nPacket.destMAC == null || nPacket.destMAC == "" && tPacket.OutboundIP != null)
{
nPacket.destMAC = WhereFrom.LookupArpFromIP(tPacket.OutboundIP.GetIPString);
}
@@ -565,13 +565,13 @@ namespace EduNetworkBuilder
Network mynet;
NetworkDevice nd;
//We make sure the MAC matches.
if (tPacket == null) return;
tPacket.InboundNic = this; //track which nic we came in on.
if (myNicType == NicType.port || myNicType == NicType.wport)
{
//Try tracking the arp if we can
mynet = NB.GetNetwork();
nd = mynet.GetDeviceFromID(myID);
if (tPacket == null) return;
tPacket.InboundNic = this; //track which nic we came in on.
if (myNicType == NicType.port || myNicType == NicType.wport || (nd.IsWirelessForwarder() && myNicType == NicType.wlan))
{
//Try tracking the arp if we can
if (tPacket.TsourceIP == null) tPacket.TsourceIP = tPacket.sourceIP;
nd.StoreArp(tPacket.sourceMAC, tPacket.TsourceIP.GetIP.ToIpString(), myID);
//If it is a return DHCP packet. We should try to update the MAC

18
EduNetworkBuilder/NetworkDevice.cs
View File

@@ -251,6 +251,7 @@ namespace EduNetworkBuilder
if(nl != null)
{
myNet.RemoveComponent(nl);
nl.Destroy();
}
nic.ConnectedLink = -1;
}
@@ -647,8 +648,10 @@ namespace EduNetworkBuilder
NICs[index].Edit();
//If the nic was a wireless, make sure we copy the ssid and key to all other of identical type
if (NICs[index].GetNicType == NicType.wport || NICs[index].GetNicType == NicType.wlan)
{
duplicateSSIDnKey(NICs[index].SSID, NICs[index].WirelessKey, NICs[index].GetNicType);
}
}
public void DeleteNic(int index)
{
if (index < 0) return;
@@ -1195,6 +1198,15 @@ namespace EduNetworkBuilder
return null;
}
public bool IsWirelessForwarder()
{
if (myType == NetworkComponentType.wrepeater) return true;
if (myType == NetworkComponentType.wap) return true;
if (myType == NetworkComponentType.wbridge) return true;
if (myType == NetworkComponentType.wrouter) return true;
return false;
}
public override void ProcessPacket(Packet tPacket)
{
//Psuedo code for processing a packet
@@ -1306,7 +1318,8 @@ namespace EduNetworkBuilder
case NicType.wlan:
//If the packet is a new packet and is not connecting to itself
//or, if it is routing away.
if ((tPacket.isFresh && !ExactMatch ) || (NeedsRouting && DoesRouting()))
if ((tPacket.isFresh && !ExactMatch ) || (NeedsRouting && DoesRouting()) ||
IsWirelessForwarder())
{
//Pass it to the NIC to send out each nic+interface.
//The nic checks to see if it works and then processes it
@@ -2160,7 +2173,8 @@ namespace EduNetworkBuilder
if (myType == NetworkComponentType.net_switch) return true;
if (myType == NetworkComponentType.wap) return true;
if (myType == NetworkComponentType.wrouter) return true;
if (myType == NetworkComponentType.wbridge) return true;
if (myType == NetworkComponentType.wrepeater) return true;
if (myType == NetworkComponentType.wrouter) return true;
return false;
}
/// <summary>

2
EduNetworkBuilder/NetworkLink.cs
View File

@@ -47,7 +47,7 @@ namespace EduNetworkBuilder
Client = sNic;
IsWireless = true;
}
if(IsWireless && AccessPoint != null && Client != null)
if(IsWireless && AccessPoint != null && Client != null && AccessPoint.SSID != null && AccessPoint.SSID != "")
{
bool donesomething=false;
if(AccessPoint.SSID != Client.SSID)