[SR-Users] Kamailio fails to start when tls module parameter 'config' contains a folder name

[Leonid Fainshtein]

Also, I found the 'workdir' parameter that can be defined in the
configuration script.

Best regards,
Leonid Fainshtein

On Thu, Oct 1, 2020 at 8:29 PM Henning Westerholt <hw at skalatan.de> wrote:

> Hello,
>
>
>
> the „-w“ parameter is meant for specifying the working directory. Usually
> the system specific init scipts are setup in a way to allow Kamailio to
> write to a proper directory where it is can place files.
>
>
>
> So, it can be flexible configured as necessary. About code extensions –
> have not looked into that particular function right now, but pull requests
> can be always created and will be reviewed by the developers.
>
>
>
> Cheers,
>
>
>
> Henning
>
>
>
> --
>
> Henning Westerholt – https://skalatan.de/blog/
>
> Kamailio services – https://gilawa.com
>
>
>
> *From:* sr-users <sr-users-bounces at lists.kamailio.org> *On Behalf Of *Leonid
> Fainshtein
> *Sent:* Wednesday, September 30, 2020 6:01 PM
> *To:* Kamailio (SER) - Users Mailing List <sr-users at lists.kamailio.org>
> *Subject:* Re: [SR-Users] Kamailio fails to start when tls module
> parameter 'config' contains a folder name
>
>
>
> Actually, it is possible to use the libc 'P_tmpdir' macro in order to get
> the temporary folder name.
>
>
>
> Best regards,
> Leonid Fainshtein
>
>
>
> On Wed, Sep 30, 2020 at 6:35 PM Leonid Fainshtein <
> leonid.fainshtein at xorcom.com> wrote:
>
> Hi,
>
> I am using Kamailio 5.4.1 installed from the packages on Ubuntu 18.04.
>
> When I define 'modparam("tls", "config", "<folder>")', Kamailio fails to
> start:
>
>
>
> ERROR: tls [tls_config.c:418]: tls_load_config(): cannot make tmp file
> configrcCczj
> ERROR: <core> [core/sr_module.c:849]: init_mod(): Error while initializing
> module tls (/usr/lib/x86_64-linux-gnu/kamailio/modules/tls.so)
>
> I checked the tls_load_config() function and found that when a folder is
> defined in the 'config' parameter, the function tries to open a temporary
> file in the working directory. I believe that the working directory at that
> point is the folder where Kamailio was started: /usr/sbin.
>
> I succeeded to launch Kamailio in two ways:
>
> Method 1:  copy 'kamailio' to /tmp and modify kamalio.service accordingly.
> This experiment result made me think that the working folder is the folder
> where kamailio is started.
>
> Method 2: add Kamailio command line  parameter "-w /tmp"
>
>
>
> (I also tried to define the Systemd 'WorkingDirectory' parameter but
> it didn't have any effect.)
>
>
>
> I think that the ultimate solution for this problem is to modify the
> tls_load_config() function in such a way that it will open the temporary
> file in a folder that is intended for the temporary files. For example, the
> /tmp folder in Linux and *BSD systems. I guess that /tmp is a good place in
> MacOS as well.
>
>
>
> Best regards,
> Leonid Fainshtein
>
>
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