Re: [RFC PATCH wpan-next 1/2] ieee802154: hwsim: add replacement for fakelb

[Alexander Aring <aring@mojatatu.com>]

Hi,

On Fri, Apr 27, 2018 at 05:21:53PM -0400, Alexander Aring wrote:
> This patch adds a new virtual driver mac802154_hwsim which is based on
> the fakelb driver.
> The fakelb driver will get deprecated and hopefully removed someday.
> The main reason for doing this step is to rename the driver to
> mac802154_hwsim to have a similar naming scheme as mac80211_hwsim,
> which is more popular in the 802.11 wireless word and the idea is the
> same behind this driver.
> 
> The new features of this driver are to have knowledge about connected
> edges, which can be changed during runtime. This offers a testing
> environment for routing protocols e.g. RPL.
> The default behaviour is still as fakelb: two radios connected to each
> other. New added radios during runtime will not be connected to other
> wpan_hwsim instances.
> 
> The netlink api is not namespace aware on purpose, only the registered
> wpan_phy's can be moved to namespaces. The physical layer according to
> wiresless "air" communication can be handled across namespaces.
> 
> Furthermore the edges can be weighted with the LQI value according IEEE
> 802.15.4 which offers additional handling to mark bad or good connection
> indicators to other connected virtual phys.
> 
> Signed-off-by: Alexander Aring <aring@mojatatu.com>

somebody (don't cc him, I think he don't want to be public) reported
about issues with hwsim privetly. I will check on it and enable more
kernel debugging stuff in kernel hacking feature to see all
locking/stack issues.

TO ALL: never send me private (and absolutely no HTML mails) to me to
report problems. Please do it here.

Thanks.

I will look for this today and change mostly the suggested changes.

- Alex