Userspace might need to know what queues are configured
for uapsd (e.g. for setting proper default values in tspecs).
Add this bitmap to the association event (inside wmm
nested attribute)
Add additional parameter to cfg80211_rx_assoc_resp,
and update its callers.
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Add nl80211 and driver API to validate, add and delete traffic
streams with appropriate settings.
The API calls for userspace doing the action frame handshake
with the peer, and then allows only to set up the parameters
in the driver. To avoid setting up a session only to tear it
down again, the validate API is provided, but the real usage
later can still fail so userspace must be prepared for that.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Clear any nl80211 messages that might contain keys after
processing them to avoid leaving their data in memory
"forever" after they've been freed.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
There's no need to put the values on the stack, just pass a
pointer to the data in the nl80211 message. This reduces stack
usage and avoids potential issues with putting sensitive data
on the stack.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
When freeing the keys stored for wireless extensions, clear the memory
to avoid having the key material stick around in memory "forever".
Similarly, when userspace overwrites a key, actually clear it instead
of just setting the key length to zero.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
When freeing the connect keys, clear the memory to avoid
having the key material stick around in memory "forever".
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Enable ACK timeout estimation algorithm (dynack) using mac80211
set_coverage_class API. Dynack is activated passing coverage class equals to -1
to lower drivers and it is automatically disabled setting valid value for
coverage class.
Define NL80211_ATTR_WIPHY_DYN_ACK flag attribute to enable dynack from
userspace. In order to activate dynack NL80211_FEATURE_ACKTO_ESTIMATION feature
flag must be set by lower drivers to indicate dynack capability.
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The regdom intersection code simply tries intersecting
each rule of the source with each rule of the target.
Since the resulting intersections are not observed
as a whole, this can result in multiple overlapping/duplicate
entries.
Make the rule addition a bit more smarter, by looking
for rules that can be contained within other rules,
and adding only extended ones.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Add a flag attribute to use in associations, for tagging the target
connection as supporting RRM. It is the responsibility of upper
layers to set this flag only if both the underlying device, and the
target network indeed support RRM.
To be used in ASSOCIATE and CONNECT commands.
Signed-off-by: Assaf Krauss <assaf.krauss@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Our legal structure changed at some point (see wikipedia), but
we forgot to immediately switch over to the new copyright
notice.
For files that we have modified in the time since the change,
add the proper copyright notice now.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
When using the cfg80211_inform_bss[_width]() functions drivers
cannot currently indicate whether the data was received in a
beacon or probe response. Fix that by passing a new enum that
indicates such (or unknown).
For good measure, use it in ath6kl.
Acked-by: Kalle Valo <kvalo@qca.qualcomm.com> [ath6kl]
Acked-by: Arend van Spriel <arend@broadcom.com> [brcmfmac]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
There are a few possible cases of where BSS data came from:
1) only a beacon has been received
2) only a probe response has been received
3) the driver didn't report what it received (this happens when
using cfg80211_inform_bss[_width]())
4) both probe response and beacon data has been received
Unfortunately, in the userspace API, a few things weren't there:
a) there was no way to differentiate cases 1) and 4) above
without comparing the data of the IEs
b) the TSF was always from the last frame, instead of being
exposed for beacon/probe response separately like IEs
Fix this by
i) exporting a new flag attribute that indicates whether or
not probe response data has been received - this addresses (a)
ii) exporting a BEACON_TSF attribute that holds the beacon's TSF
if a beacon has been received
iii) not exporting the beacon attributes in case (3) above as that
would just lead userspace into thinking the data actually came
from a beacon when that isn't clear
To implement this, track inside the IEs struct whether or not it
(definitely) came from a beacon.
Reported-by: William Seto
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This reverts commit dda444d524.
Channel switching code has been reworked and
improved significantly since the time original
locking issues were found.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
In the cfg80211_rx_mgmt(), parameter @gfp was used for the memory allocation.
But, memory get allocated under spin_lock_bh(), this implies atomic context.
So, one can't use GFP_KERNEL, only variants with no __GFP_WAIT. Actually, in all
occurrences GFP_ATOMIC is used (wil6210 use GFP_KERNEL by mistake),
and it should be this way or warning triggered in the memory allocation code.
Remove @gfp parameter as no actual choice exist, and use hard coded
GFP_ATOMIC for memory allocation.
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Since "wireless-regdb: remove antenna gain" was merged in the
wireless-regdb tree, the awk script parser has been incompatible
with the 'official' regulatory database. This fixes that up.
Without this change the max EIRP is set to 0 making 802.11 devices
useless.
The fragile nature of the awk parser must be replaced, but ideas
over how to do that in the most scalable way are being reviewed.
In the meantime update the documentation for CFG80211_INTERNAL_REGDB
so folks are aware of expectations for now.
Reported-by: John Walker <john@x109.net>
Reported-by: Krishna Chaitanya <chaitanya.mgit@gmail.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Some VHT TDLS peers (Google Nexus 5) include the VHT-AID IE in their
TDLS setup request/response. Usermode passes this aid as the station
aid, causing it to fail verifiction, since this happens in the
"set_station" stage. Make an exception for the TDLS use-case.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Driver is now responsible for veryfing if the
switch is possible.
Since this is inherently tricky driver may decide
to disconnect an interface later with
cfg80211_stop_iface().
This doesn't mean driver can accept everything. It
should do it's best to verify requests and reject
them as soon as possible.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The non-split wiphy state shouldn't be increased in size
so move the new set_qos_map command into the split if
statement.
Cc: stable@vger.kernel.org (3.14+)
Fixes: fa9ffc7456 ("cfg80211: Add support for QoS mapping")
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The TDLS initiator is set once during link setup. If determines the
address ordering in the link identifier IE.
Fix dependent drivers - mwifiex and mac80211.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
MAX_JIFFY_OFFSET has no meaning when calculating the
elapsed jiffies, as jiffies run out until ULONG_MAX.
This miscalculation results in erroneous values
in case of a wrap-around.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
