Hi,
On Sun, Jun 10, 2018 at 10:09:39PM -0400, Michael Richardson wrote:
>
> Alexander Aring wrote:
> >> It totally seems like broken behaviour. Maybe it's not even
> >> intentional. Maybe they are just foobar.
>
> > They simple don't know what they doing... somebody thought 6LoWPA
Alexander Aring wrote:
>> It totally seems like broken behaviour. Maybe it's not even
>> intentional. Maybe they are just foobar.
> They simple don't know what they doing... somebody thought 6LoWPAN need
> to be 6LoWPAN, but they actually don't use the 6LoWPAN handling inside
Hi,
On Sat, Jun 09, 2018 at 03:01:18PM -0400, Michael Richardson wrote:
>
> Alexander Aring wrote:
> > Futhermore user space programs e.g. radvd will do 6lowpan specific
> > handling on 6lowpan dev->type, it will not work either on tun
> > devices.
>
> > I know that wpantund fro
Alexander Aring wrote:
> Futhermore user space programs e.g. radvd will do 6lowpan specific
> handling on 6lowpan dev->type, it will not work either on tun
> devices.
> I know that wpantund from NestLabs do this switch, I am very
> curious about the reason but I think they do
Hi,
On Fri, Jun 08, 2018 at 03:37:44PM -0400, Michael Richardson wrote:
>
> Alexander Aring wrote:
> Alex> I already see code outside who changed tun netdevice to the
> Alex> ARPHRD_6LOWPAN type and I suppose they running into this
> Alex> issue. (Btw: I don't know why somebody want
Alexander Aring wrote:
Alex> I already see code outside who changed tun netdevice to the
Alex> ARPHRD_6LOWPAN type and I suppose they running into this
Alex> issue. (Btw: I don't know why somebody wants to changed that
Alex> type to ARPHRD_6LOWPAN on tun).
so that they can have
Hi Stephen,
On Fri, Jun 08, 2018 at 11:14:57AM -0700, Stephen Hemminger wrote:
...
>
> notifiers are always called with RTNL mutex held
> and dev->type should not change unless RTNL is held.
thanks for you answer. I am not talking about any race between notifiers
vs dev->type change.
I am talki
On Fri, 8 Jun 2018 13:34:55 -0400
Alexander Aring wrote:
> Hey netdev community,
>
> I am trying to solve some issue which Eric Dumazet points to me by
> commit ca0edb131bdf ("ieee802154: 6lowpan: fix possible NULL deref in
> lowpan_device_event()").
>
> The issue is that dev->type can be chang
Hey netdev community,
I am trying to solve some issue which Eric Dumazet points to me by
commit ca0edb131bdf ("ieee802154: 6lowpan: fix possible NULL deref in
lowpan_device_event()").
The issue is that dev->type can be changed during runtime. We don't have
any problems with the netdevice notifier
