linux.git/include/linux/ieee80211.h, branch v3.19-rc2

mac80211: add parsing of TDLS specific IEs

2014-11-19T17:45:16+00:00

These are used in TDLS channel switching code.

Signed-off-by: Arik Nemtsov 
Signed-off-by: Arik Nemtsov 
Signed-off-by: Johannes Berg

cfg/mac80211: define TDLS channel switch feature bit

2014-11-19T17:44:58+00:00

Define some related TDLS protocol constants and advertise channel switch
support in the extended-capabilities IE when the feature bit is defined.

Actually supporting TDLS channel-switching also requires support for
some new nl80211 commands, to be introduced by future patches.

Signed-off-by: Arik Nemtsov 
Signed-off-by: Arik Nemtsov 
Signed-off-by: Johannes Berg

mac80211: add BSS coex IE to TDLS setup frames

2014-11-19T17:44:52+00:00

Add the BSS coex IE in case we support HT40 channels, as mandated by
section 8.5.13 in IEEE802.11 2012.

Signed-off-by: Arik Nemtsov 
Signed-off-by: Arik Nemtsov 
Signed-off-by: Johannes Berg

mac80211: retransmit TDLS teardown packet through AP if not ACKed

2014-11-19T17:44:29+00:00

Since the TDLS peer station might not receive the teardown
packet (e.g., when in PS), this makes sure the packet is
retransmitted - this time through the AP - if the TDLS peer
didn't ACK the packet.

Signed-off-by: Liad Kaufman 
Signed-off-by: Arik Nemtsov 
Signed-off-by: Johannes Berg

ieee80211: add "max length of AMPDU" enum for VHT

2014-11-04T08:57:44+00:00

Maximum length of AMPDU that an STA can receive in VHT.
length = 2 ^ (13 + max_ampdu_length_exp) - 1.

Signed-off-by: Eran Harary 
Signed-off-by: Emmanuel Grumbach 
Signed-off-by: Johannes Berg

mac80211: add extended channel switching capability if the driver supports CSA

2014-10-09T09:30:08+00:00

The Extended Channel Switching capability bit in the extended
capabilities element must be set if the driver supports CSA on
non-beaconing interfaces.

Since this capability needs to be set during driver registration, the
extended_capabiliities global variable needs to be moved to the local
structure so that it can be modified.

Signed-off-by: Luciano Coelho 
Signed-off-by: Johannes Berg

cfg80211: add WMM traffic stream API

2014-09-11T10:21:18+00:00

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

mac80211: support DTPC IE (from Cisco Client eXtensions)

2014-09-08T08:52:00+00:00

Linux already supports 802.11h, where the access point can tell the
client to reduce its transmission power. However, 802.11h is only
defined for 5 GHz, where the need for this is much smaller than on
2.4 GHz.

Cisco has their own solution, called DTPC (Dynamic Transmit Power
Control). Cisco APs on a controller sometimes but not always send
802.11h; they always send DTPC, even on 2.4 GHz. This patch adds support
for parsing and honoring the DTPC IE in addition to the 802.11h
element (they do not always contain the same limits, so both must
be honored); the format is not documented, but very simple.

Tested (on top of wireless.git and on 3.16.1) against a Cisco Aironet
1142 joined to a Cisco 2504 WLC, by setting various transmit power
levels for the given access points and observing the results.
The Wireshark 802.11 dissector agrees with the interpretation of the
element, except for negative numbers, which seem to never happen
anyway.

Signed-off-by: Steinar H. Gunderson 
Signed-off-by: Johannes Berg

cfg80211: add Intel Mobile Communications copyright

2014-09-05T11:52:06+00:00

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 
Signed-off-by: Emmanuel Grumbach 
Signed-off-by: Johannes Berg

ieee80211: Support parsing TPC report element in action frames

2014-08-26T09:15:58+00:00

TPC report element is contained in spectrum management's tpc report
action frames and in radio measurement's link measurement report
action frames. Add a function which checks whether an action frame
contains this element. This may be needed by the drivers in order
to set the correct tx power value in these frames.

Signed-off-by: Andrei Otcheretianski 
Signed-off-by: Emmanuel Grumbach 
Signed-off-by: Johannes Berg