Skip site navigation (1)Skip section navigation (2)
Date:      Wed, 7 Sep 2005 19:54:16 +0200
From:      Sebastien <sebastien.bourdeauducq@gmail.com>
To:        freebsd-hackers@freebsd.org
Subject:   ieee80211_input() and fragmented mbufs
Message-ID:  <200509071954.17477.sebastien.bourdeauducq@gmail.com>

next in thread | raw e-mail | index | archive | help
Hello,
I'm passing ieee80211_input() heavily fragmented mbuf chains and it makes (at 
least) the function fail to parse beacons correctly. I have the 
"ieee80211_recv_mgmt: no ratesin beacon frame" message, and it makes the 
driver unable to scan for networks (always return no results).
Defragmenting the mbuf before passing it to ieee80211_input() works around the 
problem. Moreover, in monitor mode, the frames are sent correctly in 
userland, regardless the fragmentation of the mbufs.
Is it a bug in ieee80211_input(), or should certain types of frames, such as 
beacons, not be contained in fragmented mbufs ?
Regards,
Sebastien



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200509071954.17477.sebastien.bourdeauducq>