[pve-devel] [PATCH qemu-server 04/10] migrate: read mtunnel version

[Fabian Grünbichler]

On Fri, Aug 04, 2017 at 11:54:56AM +0200, Thomas Lamprecht wrote:
> On 08/04/2017 10:55 AM, Fabian Grünbichler wrote:
> > Signed-off-by: Fabian Grünbichler <f.gruenbichler at proxmox.com>
> > ---
> >   PVE/QemuMigrate.pm | 7 +++++++
> >   1 file changed, 7 insertions(+)
> > 
> > diff --git a/PVE/QemuMigrate.pm b/PVE/QemuMigrate.pm
> > index beaa1e3..f9ce8ca 100644
> > --- a/PVE/QemuMigrate.pm
> > +++ b/PVE/QemuMigrate.pm
> > @@ -143,6 +143,13 @@ sub fork_tunnel {
> >       };
> >       my $err = $@;
> > +    eval {
> > +	my $ver = $self->read_tunnel($tunnel, 10);
> > +	$ver =~ /^ver (\d+\.\d+)$/;
> > +	$tunnel->{version} = $1 if $1;
> > +	$self->log('info', "ssh tunnel version: $tunnel->{version}\n");
> 
> $tunnel->{version} may be undefined here

originally intended for debugging, but I liked it so I left it in :P

I'll restructure this part and also add handling of a bogus version
line.

> 
> > +    };
> > +
> >       if ($err) {
> >   	$self->finish_command_pipe($tunnel);
> >   	die "can't open migration tunnel - $err";
> > 
> 
>