PointToPointEpcHelper problem in my code

[Ozan Cakmak]

Hi all

I tried to integrate lena-simple-epc codes in my project. (NS3-19 version)

  1. Ptr<LteHelper> lteHelper = CreateObject<LteHelper> ();  --> This works ok.

  2. Ptr<PointToPointEpcHelper>  epcHelper = CreateObject<PointToPointEpcHelper> ();  --> I got an error. 

When I comment second statement, there is no error in my result file. However, I got an error (below) when I comment out second statement.

Command ['/home/ozan/Desktop/ns-allinone-3.19-obf-20/ns-3.19/build/scratch/Single-Gateway-Obfuscation', '-size=25', '-start=0.1', '-time=200', '-packet-interval=0.5', '-lead-packet-size=65', '-meter-packet-size=12', '-interfaces=1', '-channels=true', '-pcap=false', '-stack=ns3::Dot11sStack', '-root=00:00:00:00:00:01', '-txrate=150kbps', '-node=0', '-ac=6', '-conn=0', '-shuffle=2', '-init-GatewaytoSMs=50', '-init-SMstoGateway=60', '-sink=0', '-sink-ip=10.1.1.1', '-step=100.0', '-xSize=8.0', '-ySize=8.0', '-security=false', '-UdpTcp=tcp', '-topology=randomTopology_25_45.scn', '-arp-op=1', '-wait-arp=4', '-random-start=false', '-random-topology=true', '-type-op=1', '-topoID=7', '-dataFreq=10'] terminated with signal SIGSEGV. Run it under a debugger to get more information (./waf --run <program> --command-template="gdb --args %s <args>").

How can I solve this problem?

---- This below code is my script to implement the project------------

m_randomStart=0.1

m_totalTime=200

m_packetInterval=0.5

meter_packetSize=12

lead_packetSize=65

m_nIfaces=1

m_chan=true

m_pcap=false

m_stack=ns3::Dot11sStack

#m_root=00:00:00:00:00:3E

m_root=00:00:00:00:00:01

m_txrate=150kbps

m_node_num=0

m_ac=6

m_conn=0

m_shuffle=2

m_initstartGatewayToSMs=50

m_initstartSMsToGateway=60

#m_sink=61

#m_sinkIpAddress=10.1.1.61

m_sinkIpAddress=10.1.1.1

m_step=100.0

m_xSize=8.0

m_ySize=8.0

m_dataFreq=10

m_ActivateSecurityModule=false

m_UdpTcpMode=tcp

m_input=randomTopology_25_45.scn

m_arpOp=1

m_arpwait=4

m_randomAppStart=false

m_randomTopology=true

m_typeOfOperation=1

m_sink=0

counter=0

for m_size in 25

do

    for m_topoID in 7

    do

        ./waf --run "Single-Gateway-Obfuscation -size=$m_size -start=$m_randomStart -time=$m_totalTime -packet-interval=$m_packetInterval -lead-packet-size=$lead_packetSize -meter-packet-size=$meter_packetSize -interfaces=$m_nIfaces -channels=$m_chan -pcap=$m_pcap -stack=$m_stack -root=$m_root -txrate=$m_txrate -node=$m_node_num -ac=$m_ac -conn=$m_conn -shuffle=$m_shuffle -init-GatewaytoSMs=$m_initstartGatewayToSMs -init-SMstoGateway=$m_initstartSMsToGateway -sink=$m_sink -sink-ip=$m_sinkIpAddress -step=$m_step -xSize=$m_xSize -ySize=$m_ySize -security=$m_ActivateSecurityModule -UdpTcp=$m_UdpTcpMode -topology=$m_input -arp-op=$m_arpOp -wait-arp=$m_arpwait -random-start=$m_randomAppStart -random-topology=$m_randomTopology -type-op=$m_typeOfOperation -topoID=$m_topoID -dataFreq=$m_dataFreq" > random-$m_size-$lead_packetSize-$m_sink-$m_topoID-$counter.tcp 2>&1

        #echo "Single-Gateway-Obfuscation -size=$m_size -start=$m_randomStart -time=$m_totalTime -packet-interval=$m_packetInterval -lead-packet-size=$lead_packetSize -meter-packet-size=$meter_packetSize -interfaces=$m_nIfaces -channels=$m_chan -pcap=$m_pcap -stack=$m_stack -root=$m_root$mac -txrate=$m_txrate -node=$m_node_num -ac=$m_ac -conn=$m_conn -shuffle=$m_shuffle -init-GatewaytoSMs=$m_initstartGatewayToSMs -init-SMstoGateway=$m_initstartSMsToGateway -sink=$m_sink -sink-ip=$m_sinkIpAddress$m_sink -step=$m_step -xSize=$m_xSize -ySize=$m_ySize -security=$m_ActivateSecurityModule -UdpTcp=$m_UdpTcpMode -topology=$m_input -arp-op=$m_arpOp -wait-arp=$m_arpwait -random-start=$m_randomAppStart -random-topology=$m_randomTopology -type-op=$m_typeOfOperation"

        counter=$((counter+1))

    done

done

[Nat P]

Il giorno lunedì 16 marzo 2015 05:15:44 UTC+1, Ozan Cakmak ha scritto:

Hi all

I tried to integrate lena-simple-epc codes in my project. (NS3-19 version)

  1. Ptr<LteHelper> lteHelper = CreateObject<LteHelper> ();  --> This works ok.

  2. Ptr<PointToPointEpcHelper>  epcHelper = CreateObject<PointToPointEpcHelper> ();  --> I got an error. 

When I comment second statement, there is no error in my result file. However, I got an error (below) when I comment out second statement.

Command ['/home/ozan/Desktop/ns-allinone-3.19-obf-20/ns-3.19/build/scratch/Single-Gateway-Obfuscation', '-size=25', '-start=0.1', '-time=200', '-packet-interval=0.5', '-lead-packet-size=65', '-meter-packet-size=12', '-interfaces=1', '-channels=true', '-pcap=false', '-stack=ns3::Dot11sStack', '-root=00:00:00:00:00:01', '-txrate=150kbps', '-node=0', '-ac=6', '-conn=0', '-shuffle=2', '-init-GatewaytoSMs=50', '-init-SMstoGateway=60', '-sink=0', '-sink-ip=10.1.1.1', '-step=100.0', '-xSize=8.0', '-ySize=8.0', '-security=false', '-UdpTcp=tcp', '-topology=randomTopology_25_45.scn', '-arp-op=1', '-wait-arp=4', '-random-start=false', '-random-topology=true', '-type-op=1', '-topoID=7', '-dataFreq=10'] terminated with signal SIGSEGV. Run it under a debugger to get more information (./waf --run <program> --command-template="gdb --args %s <args>").

How can I solve this problem?

Maybe it is related, maybe not (to be sure, you need to run the program under gdb and see what line is failing - that is exactly what the software suggest). Keep in mind that, once created, these two object cannot be deleted (e.g. don't let the Ptr<> go out of scope). It's a feature/bug not documented, that I discovered some time ago.

Before that, use gdb and see what is failing.

Nat

 

[Konstantinos]

Try upgrading to ns-3.22
Some other comments inline. 

On Monday, March 16, 2015 at 4:15:44 AM UTC, Ozan Cakmak wrote:

Hi all

I tried to integrate lena-simple-epc codes in my project. (NS3-19 version)

  1. Ptr<LteHelper> lteHelper = CreateObject<LteHelper> ();  --> This works ok.

  2. Ptr<PointToPointEpcHelper>  epcHelper = CreateObject<PointToPointEpcHelper> ();  --> I got an error. 

What type of error? Please provide more information.

 

When I comment second statement, there is no error in my result file. However, I got an error (below) when I comment out second statement.

Command ['/home/ozan/Desktop/ns-allinone-3.19-obf-20/ns-3.19/build/scratch/Single-Gateway-Obfuscation', '-size=25', '-start=0.1', '-time=200', '-packet-interval=0.5', '-lead-packet-size=65', '-meter-packet-size=12', '-interfaces=1', '-channels=true', '-pcap=false', '-stack=ns3::Dot11sStack', '-root=00:00:00:00:00:01', '-txrate=150kbps', '-node=0', '-ac=6', '-conn=0', '-shuffle=2', '-init-GatewaytoSMs=50', '-init-SMstoGateway=60', '-sink=0', '-sink-ip=10.1.1.1', '-step=100.0', '-xSize=8.0', '-ySize=8.0', '-security=false', '-UdpTcp=tcp', '-topology=randomTopology_25_45.scn', '-arp-op=1', '-wait-arp=4', '-random-start=false', '-random-topology=true', '-type-op=1', '-topoID=7', '-dataFreq=10'] terminated with signal SIGSEGV. Run it under a debugger to get more information (./waf --run <program> --command-template="gdb --args %s <args>").

How can I solve this problem?

---- This below code is my script to implement the project------------

THIS IS NOT YOUR SCENARIO!!. This is just a shell (?) script to run the "Single-Gateway-Obfuscation".

Please attach that in order to see if possible errors.

Also, when you pass command line parameters to WAF, you usually need double dash '--' before the name. In your code I see a single. Could be just that your mail client or google-groups merged them.

[Fu Jiantao]

I'm having the same problem, the following code will crash, i would say this is a bug, no other helper function behave like this

int main (int argc, char *argv[])

{

    {

       Ptr<PointToPointEpcHelper> epcHelper = CreateObject<PointToPointEpcHelper> ();

    }

    std::cout << "Run Simulation..." << std::endl;

    Simulator::Stop (Seconds (T_END_SIM));

    Simulator::Run ();

    Simulator::Destroy ();

    std::cout << "Done" << std::endl;

}

在 2015年3月16日星期一 UTC+8下午5:02:10，Nat P写道：

[Manuel Requena]

Please, follow the posting guidelines. Don't reply to a two-years-old thread.

What is your simulation program? You only put inline a non-working snippet. PointToPointEpcHelper is not intended to work alone.

Please, read the LTE documentation to see how to use the PointToPointHelper
https://www.nsnam.org/docs/models/html/lte-user.html#evolved-packet-core-epc

In src/lte/examples/lena-simple-epc.cc, you can find an example of how to use it.

Best regards,

Manuel

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[Fu Jiantao]

ok, the problem still exist for ns 3.26.

I just provide a simplified program to demonstrate it will crash, which is not expected, pls run the code. I'm not saying it's not working functionally, it's crash.

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[Fu Jiantao]

That is a simplified program to show the code snippet having the crash problem. In my simulation code, the topology is created in a function and use PointToPointEpcHelper only scoped in that function. and the simulation run in the main.

in the simulation code:

void createTopology()

 {

       ...

       Ptr<PointToPointEpcHelper> epcHelper = CreateObject<PointToPointEpcHelper> ();

       ...

 }

int main (int argc, char *argv[])

{

    createTopology();

    std::cout << "Run Simulation..." << std::endl;

    Simulator::Stop (Seconds (T_END_SIM));

    Simulator::Run ();

    Simulator::Destroy ();

    std::cout << "Done" << std::endl;

}

Thanks for the reply!