Re: [PATCH 1/4] test-runner: introduce network namespaces

[Denis Kenzior <denkenz@gmail.com>]

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Hi James,

On 11/17/20 2:53 PM, James Prestwood wrote:
> Our simulated environment was really only meant to test air-to-air
> communication by using mac80211_hwsim. Protocols like DHCP use IP
> communication which starts to fall apart when using hwsim radios.
> Mainly unicast sockets do not work since there is no underlying
> network infrastructure.
> 
> In order to simulate a more realistic environment network namespaces
> are introduced in this patch. This allows wireless phy's to be added
> to a network namespace and unique IWD instances manage those phys.
> This is done automatically when 'NameSpaces' entries are configured
> in hw.conf:
> 
> [SETUP]
> num_radios=2
> 
> [NameSpaces]
> ns0=rad1,...
> 
> This will create a namespace named ns0, and add rad1 to that
> namespace. rad1 will not appear as a phy in what's being called the
> 'root' namespace (the default namespace).
> 
> As far as a test is concerned you can create a new IWD() class and
> pass the namespace in. This will start a new IWD instance in that
> namespace:
> 
> ns0 = ctx.get_namespace('ns0')
> wd_ns0 = IWD(start_iwd=True, namespace=ns0)
> 
> 'wd_ns0' can now be used to interact with IWD in that namespace, just
> like any other IWD class object.
> ---
>   tools/test-runner | 298 ++++++++++++++++++++++++++++++----------------
>   1 file changed, 196 insertions(+), 102 deletions(-)
> 

All applied, thanks.

Regards,
-Denis