Re: mac80211_hwsim + iperf + netns

[Johannes Berg <johannes@sipsolutions.net>]

On Thu, 2016-02-04 at 18:13 +0530, Krishna Chaitanya wrote:
> On Thu, Feb 4, 2016 at 6:05 PM, Johannes Berg <johannes@sipsolutions.
> net> wrote:
> > On Thu, 2016-02-04 at 17:58 +0530, Krishna Chaitanya wrote:
> > > On Thu, Feb 4, 2016 at 5:49 PM, Johannes Berg <johannes@sipsoluti
> > > ons.
> > > net> wrote:
> > > > On Thu, 2016-02-04 at 12:32 +0100, Michal Kazior wrote:
> > > > > 
> > > > >  ip netns add ns1
> > > > >  ip netns exec ns1 bash # get the PID in the session and
> > > > > don't
> > > > > close
> > > > > it
> > > > >  iw phy phyX set netns $pid_of_that_shell
> > > > > 
> > > > 
> > > > If you also have a recent enough iw version, you can use
> > > > 
> > > > iw phy phyX set netns name ns1
> > > > 
> > > My iw has this option, but it throws an error.
> > > Does this command have any prerequisites?
> > > 
> > > # iw phy phy1 set netns name ns1
> > > Invalid parameter: nsname(name)
> > > 
> > 
> > This happens if the ns1 doesn't exist.
> ok, so we need latest iprotue2 to create the
> namespace?

for this way to work, yes. you could hack your own C program to do the
required unshare() call and exec bash and then use the PID ... I used
to have one but can't find it now.

johannes