alon.barlev at gmail
Aug 1, 2012, 10:55 PM
Post #3 of 3
(462 views)
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Re: vpnc disconnect on Ubuntu doesn't call vpnc-script
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On Thu, Aug 2, 2012 at 3:26 AM, Antonio Borneo <borneo.antonio [at] gmail> wrote:
> Hi Florian
>
> On Thu, Aug 2, 2012 at 12:51 AM, Florian Burkart
> <florian.burkart [at] gmail> wrote:
>> Hi,
>>
>> I am using vpnc-0.5.3r512-2ubuntu1 on 64 bit ubuntu.
>>
>> I amended the vpnc-script as follows:
>>
>> root [at] Wor:~# head /etc/vpnc/vpnc-script
>> #!/bin/sh
>> echo "Calling /etc/vpnc/vpnc-script with reason $reason" | ts >>
>> /root/reconnect.log
>> # List of parameters passed through environment
>> #* reason -- why this script was called, one of:
>> pre-init connect disconnect
>> ...
>>
>> e.g. I added the echo line.
>>
>> This is the current content of /root/reconnect.log
>>
>> root [at] Wor:~# cat reconnect.log
>> Jul 31 06:48:36 Calling /etc/vpnc/vpnc-script with reason pre-init
>> Jul 31 06:48:37 Calling /etc/vpnc/vpnc-script with reason connect
>> Aug 01 06:47:28 Calling /etc/vpnc/vpnc-script with reason pre-init
>> Aug 01 06:47:28 Calling /etc/vpnc/vpnc-script with reason connect
>>
>> e.g. for some reason I did not get a callback on disconnect.
>>
>> What could be the reason? How do I go about finding the problem?
>
> In vpnc there are 50+ calls to error(), that cause vpnc to exit
> without calling disconnect script.
> Alon proposed a patch based on atexit() to intercept these cases.
> http://www.gossamer-threads.com/lists/vpnc/devel/3778
> I prefer a replacement of exit() calls but, due to limited time by my
> side and lack of alternatives, I'm going to commit Alon's patch as is.
Hello Antonio,
I will be happy to provide a different solution.
But, creating a simple wrapper of exit() will reach the same
implementation of atexit(), unless you thought of some other
implementation which I don't understand.
I mean, if I do 's/exit/vpnc_exit/g', then write:
---
void vpnc_exit(int status) {
vpnc_cleanup();
exit(status);
}
---
As far as I know It is better to use atexit() for this task, as it is
the standard approach to reach the same.
Regards,
Alon.
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