OpenMarine
[SOLVED] kplex crashes if openvpn started - Printable Version

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+--- Thread: [SOLVED] kplex crashes if openvpn started (/showthread.php?tid=68)

[SOLVED] kplex crashes if openvpn started - davidec - 2016-04-28

Hi all,
I configured openplotter 0.8.0 on a rasp PI3.
After that I added openvpn, but if I activate openvpn service the kplex dies with segmentation fault.
I remark that openplotter 0.8.0 works correctly, openvpn stand alone works correctly.
Also using the last version  kplex 1.3.2  I see the same behaviour.
The issue seems on udp part input connection.
Davide


Code:
pi@raspb13:~ $ sudo service openvpn stop
pi@raspb13:~ $ kplex -d9 -f kplex.conf.udp
kplex DEBUG: Using config file kplex.conf.udp
kplex DEBUG: kplex starting, config file kplex.conf.udp
kplex DEBUG: system_input: BINDTODEVICE succeeded on device lo
kplex DEBUG: udp interface system_input listening on 127.0.0.1, port 10110

^Ckplex DEBUG: Cleaning up data for exiting input interface system_input id 10000
kplex DEBUG: Kplex exiting
pi@raspb13:~ $
pi@raspb13:~ $
pi@raspb13:~ $
pi@raspb13:~ $ sudo service openvpn start
pi@raspb13:~ $ sudo service openvpn status
● openvpn.service - OpenVPN service
  Loaded: loaded (/lib/systemd/system/openvpn.service; enabled)
  Active: active (exited) since Thu 2016-04-28 09:13:02 CEST; 17s ago
 Process: 3798 ExecStart=/bin/true (code=exited, status=0/SUCCESS)
Main PID: 3798 (code=exited, status=0/SUCCESS)
  CGroup: /system.slice/openvpn.service

Apr 28 09:13:02 raspb13 systemd[1]: Started OpenVPN service.
pi@raspb13:~ $
pi@raspb13:~ $ kplex -d9 -f kplex.conf.udp
kplex DEBUG: Using config file kplex.conf.udp
kplex DEBUG: kplex starting, config file kplex.conf.udp
Segmentation fault
Code:
pi@raspb13:~ $ cat kplex.conf.udp
# For advanced manual configuration, please visit: http://www.stripydog.com/kplex/configuration.html
# Please do not modify defaults nor OpenPlotter GUI settings.
# Add manual settings at the end of the document.

###defaults

[udp]
name=system_input
direction=in
optional=yes
address=127.0.0.1
port=10110
device=lo

pi@raspb13:~ $


RE: kplex crashes if openvpn started - Sailoog - 2016-04-28

Thanks for reporting, I have reported this to kplex developer.

RE: kplex crashes if openvpn started - Sailoog - 2016-04-29

Response:

Quote:My guess would be that this occurs if the user has openvpn enabled before kplex is started.  I haven't looked at openvpn but I'm guessing that it's a weird point to point link type.

Part of the problem with kplex is that it tries to be too clever when trying to work out whether the user wants a unicast, multicast or broadcast interface.

To follow the case, please post the issue here: https://groups.google.com/forum/#!forum/kplex

Thanks!

RE: kplex crashes if openvpn started - davidec - 2016-04-29

(2016-04-29, 12:44 PM)Sailoog Wrote: Response:

...
Part of the problem with kplex is that it tries to be too clever when trying to work out whether the user wants a unicast, multicast or broadcast interface.
...
mmmmh, but there isn't any option valid in kplex ( or I didn't find this) to configure the network interface, only ip address and [optionally] the device name, no netmask, no others.

Ok, I'll open a bug on kplex's forum.
Thanks

Davide

RE: kplex crashes if openvpn started - Sailoog - 2016-05-02

Hi davide,

kplex developer has done some work on this issue and he needs to test it, if you are still interested on fixing this, please post in kplex forum.

RE: kplex crashes if openvpn started - davidec - 2016-05-02

(2016-05-02, 01:35 PM)Sailoog Wrote: Hi davide,

kplex developer has done some work on this issue and he needs to test it, if you are still interested on fixing this, please post in kplex forum.

Hi sailoog, I did it.
Thanks in advance for the support.
Davide

RE: kplex crashes if openvpn started - davidec - 2016-05-03

Hi Sailoor and all,
Just For Your Information,
The maintainer of kplex has indentified the issue and temporarily has fixed the code successfully on develop branch.
Now I can redirect all data out thru the vpn.
I think next days Keith will make a new release of kplex.

Davide

RE: kplex crashes if openvpn started - Sailoog - 2016-05-03

Great! Thanks for your help Davide. OP v0.8.0 stable will have the future kplex release (1.3.3)