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Re: [PATCH 0/2 v3] mac80211/cfg80211: add support for userspace to handle auth frames on adhoc ifaces

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Hi Will,

> I am sending along 2 patches to add support for user space applications
> to register for authentication frames on adhoc interfaces. These are
> revisions to a previous patch that I submitted to accomplish the same
> thing.

Thanks.

> Patch 1/2 adds a cfg80211_mgmt_reg_match function to cfg80211 to
> check whether a user space application is registered for a particular
> type of management frame rx'd on a particular device. The new function
> is very similar to cfg80211_rx_mgmt. cfg80211_rx_mgmt could not be
> reused because of its side-effect of transmitting the "query" frames to
> the registered userspace applications. This patch modifies the
> documentation for cfg80211_rx_mgmt to reflect that.

I think this isn't needed: if you look at mac80211/cfg.c, there's a
handler called ieee80211_mgmt_frame_register() where cfg80211 tells
mac80211 when a handler is registered/unregistered. mac80211 could just
keep track (for IBSS type interfaces) all by itself, and then just needs
to check some flag/variable instead of calling a function.

> Patch 2/2 sets the necessary flags to allow userspace
> applications to register for authentication frames on adhoc interfaces.
> It also adds a check to make sure that "open" authentication frames are
> not sent when a user space application is registered for authentication
> frames.

Makes sense. I'll need to check if you caught all conditions, maybe
Antonio can help out.

> As I've said before, I'm still new to this process so I look forward to
> your feedback on improving.

There's not a lot of room for improvement :-)

A small detail: the first patch should have been labelled only
"cfg80211" and the second only "mac80211".

Also, if you could send the patches (1/2 and 2/2) as a reply to the
cover letter (0/2) that helps keep the series together due to threading.
With git send-email you can instruct it to do that, but it didn't look
like you used it.

Thanks!

johannes

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