linux.git/net/mac80211/main.c, branch v3.9

mac80211: convert to idr_alloc()

2013-02-28T03:10:20+00:00

Convert to the much saner new idr interface.

Signed-off-by: Tejun Heo 
Acked-by: Johannes Berg 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mac80211: clean up mesh code

2013-02-15T14:46:37+00:00

There's various code with strange indentation,
questionable loop and locking constructs, etc.

The bigger change is moving the "sdata" argument
to the first argument of all functions, like all
other mac80211 functions that have one.

Signed-off-by: Johannes Berg

nl80211: renumber NL80211_FEATURE_FULL_AP_CLIENT_STATE

2013-02-15T08:41:44+00:00

Adding the flag to mac80211 already without testing was
clearly a mistake, one that we now pay for by having to
reserve bit 13 forever. The problem is cfg80211 doesn't
allow capability/rate changes for station entries that
were added unassociated, so the station entries cannot
be set up properly when marked associated.

Change the NL80211_FEATURE_FULL_AP_CLIENT_STATE value
to make it clear to userspace implementations that all
current kernels don't actually support it, even though
the previous bit is set, and of course also remove the
flag from mac80211 until we test and fix the issues.

Signed-off-by: Johannes Berg

mac80211: advertise operating mode notification capability

2013-02-15T08:41:42+00:00

Use the new extended capabilities advertising to advertise
the fact that operating mode notification is supported.

Signed-off-by: Johannes Berg

mac80211: add radar detection command/event

2013-02-15T08:41:04+00:00

Add command to trigger radar detection in the driver/FW.
Once radar detection is started it should continuously
monitor for radars as long as the channel active.
If radar is detected usermode notified with 'radar
detected' event.

Scanning and remain on channel functionality must be disabled
while doing radar detection/scanning, and vice versa.

Based on original patch by Victor Goldenshtein 

Signed-off-by: Simon Wunderlich 
Signed-off-by: Johannes Berg

mac80211: remove IEEE80211_HW_SCAN_WHILE_IDLE

2013-02-11T17:45:01+00:00

There are only a few drivers that use HW scan, and
all of those don't need a non-idle transition before
starting the scan -- some don't even care about idle
at all. Remove the flag and code associated with it.

The only driver that really actually needed this is
wl1251 and it can just do it itself in the hw_scan
callback -- implement that.

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

mac80211: protect rx-path with spinlock

2013-02-11T17:44:55+00:00

This patch fixes the problem which was discussed in
"mac80211: Fix PN corruption in case of multiple
virtual interface" [1].

Amit Shakya reported a serious issue with my patch:
mac80211: serialize rx path workers" [2]:

In case, ieee80211_rx_handlers processing is going on
for skbs received on one vif and at the same time, rx
aggregation reorder timer expires on another vif then
sta_rx_agg_reorder_timer_expired is invoked and it will
push skbs into the single queue (local->rx_skb_queue).

ieee80211_rx_handlers in the while loop assumes that
the skbs are for the same sdata and sta. This assumption
doesn't hold good in this scenario and the PN gets
corrupted by PN received in other vif's skb, causing
traffic to stop due to PN mismatch."

[1] Message-Id: http://mid.gmane.org/201302041844.44436.chunkeey@googlemail.com
[2] Commit-Id: 24a8fdad35835e8d71f7

Reported-by: Amit Shakya 
Signed-off-by: Christian Lamparter 
Signed-off-by: Johannes Berg

mac80211: allow drivers to access IPv6 information

2013-01-18T20:55:38+00:00

To be able to implement NS response offloading (in
regular operation or while in WoWLAN) drivers need
to know the IPv6 addresses assigned to interfaces.
Implement an IPv6 notifier in mac80211 to call the
driver when addresses change.

Unlike for IPv4, implement it as a callback rather
than as a list in the BSS configuration, that is
more flexible.

Signed-off-by: Johannes Berg

mac80211: remove ARP filter enable/disable logic

2013-01-18T20:20:34+00:00

Depending on the driver, having ARP filtering for
some addresses may be possible. Remove the logic
that tracks whether ARP filter is enabled or not
and give the driver the total number of addresses
instead of the length of the list so it can make
its own decision.

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

nl80211/mac80211: support full station state in AP mode

2013-01-03T12:01:40+00:00

Today, stations are added already associated. That is
inefficient if, for example, the driver has no room
for stations any more because then the station will
go through the entire auth/assoc handshake, only to
be kicked out afterwards.

To address this a bit better, at least with drivers
using the new station state callback, allow hostapd
to add stations in unauthenticated mode, just after
receiving the AUTH frame, before even replying. Thus
if there's no more space at that point, it can send
a negative auth frame back. It still needs to handle
later state transition errors though, of course.

Signed-off-by: Johannes Berg