Re: [RFC 00/16] ieee802154: 6lowpan: cleanup and rework dispatch evaluation

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Hello.

On 03/08/15 08:23, Alexander Aring wrote:
Hi,

this patch series contains a rework of 802.15.4 6LoWPAN receive handling.
We need to check on some things before which never checked before, like
is 802.15.4 dataframe, if we can access skb->data[0] (could be that skb->len
is 0 then), etc.

Also various bug fixes like the masking for fragmentation dispatch value which
is currently wrong. Also we should again check the dispatch value after successful
reassembly a fragment, we currently assume always a iphc header there. This is wrong
it could also be a non-compressed header. This can occur if the compressed header is
larger than lower interface MTU size, we doesn't react on this while transmit which
is another issue. Nevertheless we also don't reach this case at worst-case compression
currently.

I introduced a complete new handling for the dispatch values based on mac80211
datatype receive handling mechanism.

I'm going to review this set over the next days. Just as a heads up.

This patch series based on bluetooth-next with various pending patches, I uploaded
the branch at:

https://github.com/linux-wpan/linux-wpan-next/commits/802154_6lowpan_cleanup2

so everybody can test it.

I tried to apply the patches directly on bluetooth-next but they did not apply. Guess you want to rebase them when sending out a new round. For now I will review the patches here and use the branch you uploaded for testing. Will report back later.

regards
Stefan Schmidt
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