All NFC devices will now get proper RFKILL support as long as they provide
some dev_up and dev_down hooks. Rfkilling an NFC device will bring it down
while it is left to userspace to bring it back up when being rfkill unblocked.
This is very similar to what Bluetooth does.
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
And return the proper string for it.
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Some devices turn radio on whenever they're asked to start a poll.
To prevent that from happening, we just don't call into the driver
start_poll hook when the NFC device is down.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
According to the LLCP specs, we must terminate the LLCP link when receiving
a DISC with both ssap and dsap set to 0.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
local_cleanup is always called with device set to false as it means the
local LLCP is going away. So no need to pass this switch as an argument.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
When the MAC goes down, connected and connection less sockets should be
notified, but raw sockets should be kept alive.
They will get notified only when the physical devices goes away.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This resets remote parameters in both local and socket llcp structures when the
link goes down. That way, nfc_llcp_getsockopt won't return values corresponding
to the previous link parameters.
Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
If remote_miu value is not set in the socket (i.e. connection-less socket) the
value stored in the local is used.
Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This adds support for AGF PDUs. For each PDU contained in the AGF, a new sk_buff
is allocated and dispatched to its corresponding handler.
Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
LLCP Validation test #2 (Connection-less information transfer) send a
service data unit of zero octets length. This is now handled correctly.
Signed-off-by: Olivier Guiter <olivier.guiter@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
If a new netdev (e.g. an AP VLAN) is created while the driver
has queues stopped, the new netdev queues will be started even
though they shouldn't. This will lead to frames accumulating
on the internal mac80211 pending queues instead of properly
being held on the netdev queues.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Given the (nested) switch statements, this code can't
be reached, so make it warn instead of manipulating
the carrier state which seems purposeful.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The netdev queues should always represent the state that
the driver gave them, so fiddling with them isn't really
appropriate in the mlme code. Also, since we stop queues
for flushing now, this really isn't necessary any more.
As the scan/offchannel code has also been modified to no
longer do this a while ago, remove the outdated smp_mb()
and comments about it.
While at it, also add a pair of braces that was missing.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
It's unlikely that an AP requires WMM mandatory admission control
for all access categories, and if it does then we still transmit
on the background AC without requesting admission. However, avoid
using uAPSD in this case since the implementation could run into
issues and might use other ACs etc.
Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
When a device is unplugged while suspended, mac80211 is
de-initialized and all interfaces are removed while no
state is actually present in the driver. This can cause
warnings and driver confusion.
Fix this by reordering the do_stop code to not call the
driver when it is suspended, i.e. when there's no state
in the driver anyway.
The previous patches removed a few corner cases in ROC
and virtual monitor interfaces so that now this is safe
to do and no state should be left over.
Reported-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
It has to be removed from the driver, but completely
destroying it helps handle unplug of a device during
suspend since then the channel context handling etc.
doesn't have to happen later when it's removed.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
They can't really be executed while suspended and could
trigger work warnings, so abort all ROC items. When the
system resumes the notifications about this will be
delivered to userspace which can then act accordingly
(though it will assume they were canceled/finished.)
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The code now explicitly calls ieee80211_configure_filter()
anyway, so nothing needs to be explained.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Most times that mesh_path_add() is called, it is followed by
a lookup to get the just-added mpath. We can instead just
return the new mpath in the case that we allocated one (or the
existing one if already there), so do that. Also, reorder the
code in mesh_path_add a bit so that we don't need to allocate
in the pre-existing case.
Signed-off-by: Bob Copeland <bob@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The mesh hwmp debug message is a bit confusing. The "sending PREP
to %p" should be the MAC address of mesh STA that has originated
the PREQ message and the "received PREP from %pM" should be the MAC
address of the mesh STA that has originated the PREP message.
Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Instead of open-coding the accesses and length check do
the length check in the IE parser and assign a struct
pointer for use in the remaining code.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
It's always just one byte, so check for that and
remove the length field from the parser struct.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
It's always just one byte, so check for that and
remove the length field from the parser struct.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The master interface no longer exists ... and hasn't for
a few years now, so remove this reference :-)
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
I don't think we should send the events unless it was actually
a beacon that was lost...not just any probe of an AP.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Beacon-timeout and number of beacon loss events.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
It is possible since the global hw config and local switched to
cfg80211_chan_def.
Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
- A crash fix for when a DGRAM LLCP socket is listening while the NFC adapter
is physically removed.
- A potential double skb free when the LLCP socket receive queue is full.
- A fix for properly handling multiple and consecutive LLCP connections, and
not trash the socket ack log.
- A build failure for the MEI microread physical layer, now that the MEI bus
APIs have been merged into char-misc-next.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)
iQIcBAABAgAGBQJRWMDxAAoJEIqAPN1PVmxKnaIP/iWPgCdp7xZGtiT8R/bf0f2I
hpWtCnYgwyvqEyUqq6+hJ+A4J6DJH/vXLqO0hJIZ6lPuATdxpba9u4mWaoIuU+V5
4khspaWnTE7we72fVNhpT6Ms2ZZubtFynqbmPuxvu9vmk8JCMkJLfH8InQ4OGI0v
mScDCByIq9xZiv+q/R2QO9vh6k3t5sJyAZONf7uuQhoJ+AdlrXNsvHPki+gfo+6T
dLhgVGqytEDGKkh0AZLGc5Ss1MJFQsmTh76A4wstcJfLCisBtbhM0sZ8zWn6wmzQ
KCq5YawbowuA12RYgb+cwxXV7H167lDYJxILZuK3WqL0nm0H3Z0jkakcV7F+IVNu
iyh1hRqjdsgThl7aBF1VEER6Scum4WbEDXY5abCpX9l8Jbtk3+iQJWYpy8ldKEnL
KqDiZnm6WC5CrcM1GQo4Uy46UPE0IlHPxupfQ3riuFjaFKyPd1x1ok1xUngdOXjn
JYpxfMLVSsRBZ2y6tpDhm0r5oRHGmmJmKTzhMPKP+4+CVG8z0vwUQfydgaDlaFRa
F3U7Av70vyCGt+Cr0tAXppvoXng1TSUKPHPTHjH+pEHjfVA9l1mAU5AYQ7JDB9aZ
fccfkd5UG0f6ApFMhknI8kkISBN5KseNuuSAoQc4WV9jUVKk9mMifAz/Aj9MVYWx
m6M8KzocEudWwM8y/BjE
=ABey
-----END PGP SIGNATURE-----
Merge tag 'nfc-fixes-3.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/nfc-fixes
Samuel Ortiz <sameo@linux.intel.com> says:
"This is the 2nd batch of NFC fixes for 3.9. This time we have:
- A crash fix for when a DGRAM LLCP socket is listening while the NFC adapter
is physically removed.
- A potential double skb free when the LLCP socket receive queue is full.
- A fix for properly handling multiple and consecutive LLCP connections, and
not trash the socket ack log.
- A build failure for the MEI microread physical layer, now that the MEI bus
APIs have been merged into char-misc-next."
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Introduced in f9f475292d
("cfg80211: always check for scan end on P2P device")
cfg80211_conn_scan() which requires sched_scan_mtx to be held can be called
from cfg80211_conn_work(). Without this we are hitting multiple warnings like
the following:
WARNING: at net/wireless/sme.c:88 cfg80211_conn_scan+0x1dc/0x3a0 [cfg80211]()
Hardware name: 0578A21
Modules linked in: ...
Pid: 620, comm: kworker/3:1 Not tainted 3.9.0-rc4-next-20130328+ #326
Call Trace:
[<c1036992>] warn_slowpath_common+0x72/0xa0
[<c10369e2>] warn_slowpath_null+0x22/0x30
[<faa4b0ec>] cfg80211_conn_scan+0x1dc/0x3a0 [cfg80211]
[<faa4b344>] cfg80211_conn_do_work+0x94/0x380 [cfg80211]
[<faa4c3b2>] cfg80211_conn_work+0xa2/0x130 [cfg80211]
[<c1051858>] process_one_work+0x198/0x450
Signed-off-by: Artem Savkov <artem.savkov@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Drivers that don't use chanctxes cannot perform VHT association because
they still use a "backward compatibility" pair of {ieee80211_channel,
nl80211_channel_type} in ieee80211_conf and ieee80211_local.
Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com>
[fix kernel-doc]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Corey Richardson reported that my idle handling cleanup
(commit fd0f979a1b, "mac80211: simplify idle handling")
broke ath9k_htc. The reason appears to be that it wants
to go out of idle before switching channels. To fix it,
reimplement that sequence.
Reported-by: Corey Richardson <corey@octayn.net>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
mac80211 currently sets uAPSD parameters to have VO AC trigger-
and delivery-enabled, with maximum service period length.
Allow drivers to change these default settings since different
uAPSD client implementations may handle errors differently and
be able to recover from some errors.
Note: some APs may not function correctly if one or all ACs are
trigger- and delivery-enabled, see
http://thread.gmane.org/gmane.linux.kernel.wireless.general/93577.
We retested with this AP and later firmware doesn't have this
bug any more.
Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Instead of having an SKB all the time, use a beacon_data struct
with just the information required. This also allows removing a
synchronize_rcu() and using kfree_rcu() instead.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
If we don't disable beaconing, the driver might attempt
to continue, but would fail to request a beacon. That's
strange, so disable beaconing first.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
If a ROC item is canceled just as it expires, the work
struct may be scheduled while it is running (and waiting
for the mutex). This results in it being run after being
freed, which obviously crashes.
To fix this don't free it when aborting is requested but
instead mark it as "to be freed", which makes the work a
no-op and allows freeing it outside.
Cc: stable@vger.kernel.org [3.6+]
Reported-by: Jouni Malinen <j@w1.fi>
Tested-by: Jouni Malinen <j@w1.fi>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
I found another crash when deleting lots of virtual stations
in a congested environment. I think the problem is that
the ieee80211_mlme_notify_scan_completed could call
ieee80211_restart_sta_timer for a stopped interface
that was about to be deleted.
With the following patch I am unable to reproduce the
crash.
Signed-off-by: Ben Greear <greearb@candelatech.com>
[move check, also make the same change in mesh]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
