On Tue, Apr 7, 2020 at 2:54 PM Ilya Maximets <[email protected]> wrote:
>
> On 4/7/20 10:26 AM, [email protected] wrote:
> > From: Numan Siddique <[email protected]>
> >
> > ovn-nbctl when run as a daemon is creating the ctl socket in
> > the ovs rundir. This patch fixes this issue by creating it in
> > the ovn rundir.
> >
> > Reported-by: Dan Williams <[email protected]>
> > Signed-off-by: Numan Siddique <[email protected]>
> > ---
> >  utilities/ovn-nbctl.c | 14 +++++++++++++-
> >  1 file changed, 13 insertions(+), 1 deletion(-)
> >
> > diff --git a/utilities/ovn-nbctl.c b/utilities/ovn-nbctl.c
> > index 59abe0051..412796e83 100644
> > --- a/utilities/ovn-nbctl.c
> > +++ b/utilities/ovn-nbctl.c
> > @@ -6436,7 +6436,19 @@ server_loop(struct ovsdb_idl *idl, int argc, char 
> > *argv[])
> >
> >      service_start(&argc, &argv);
> >      daemonize_start(false);
> > -    int error = unixctl_server_create(unixctl_path, &server);
> > +
> > +    char *abs_unixctl_path = NULL;
> > +    if (!unixctl_path) {
> > +        abs_unixctl_path = get_abs_unix_ctl_path();
> > +    } else {
> > +        abs_unixctl_path = unixctl_path;
>
> But 'unixctl_path' might be not an absolute path.  In this case
> unixctl_server_create() will still place it into ovs_rundir().
> So, you need to have:
>
>        abs_unixctl_path = unixctl_path ? abs_file_name(ovn_rundir(), 
> unixctl_path)
>                                        : get_abs_unix_ctl_path();
>
> Another and, probably, better approach is to add an optional 'path' argument 
> to
> get_abs_unix_ctl_path() so it might call abs_file_name() for us.
> so it will look like:
>
>        abs_unixctl_path = get_abs_unix_ctl_path(unixctl_path);
>
>
> However, this seems like existing issue for all the OVN processes.
> None of the ovn applications checks if 'unixctl_path' is an absolute path or 
> not.

Thanks Ilya and Dumitru. I addressed this in the v2. Request to take a
look at it.

Thanks
Numan

>
> > +    }
> > +
> > +    int error = unixctl_server_create(abs_unixctl_path, &server);
> > +    if (!unixctl_path) {
> > +        free(abs_unixctl_path);
> > +    }
> > +
> >      if (error) {
> >          ctl_fatal("failed to create unixctl server (%s)",
> >                    ovs_retval_to_string(error));
> >
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