linux.git/net/wireless/mlme.c, branch v4.3

cfg80211: allow mgmt_frame_register callback to sleep

2015-07-17T13:38:26+00:00

This callback is currently not allowed to sleep, which makes it more
difficult to implement proper driver methods in mac80211 than it has
to be. Instead of doing asynchronous work here in mac80211, make it
possible for the callback to sleep by doing some asynchronous work
in cfg80211. This also enables improvements to other drivers, like
ath6kl, that would like to sleep in this callback.

While at it, also fix the code to call the driver on the implicit
unregistration when an interface is removed, and do that also when
a P2P-Device wdev is destroyed (otherwise we leak the structs.)

Signed-off-by: Johannes Berg

cfg80211: add bss_type and privacy arguments in cfg80211_get_bss()

2015-03-03T14:56:01+00:00

802.11ad adds new a network type (PBSS) and changes the capability
field interpretation for the DMG (60G) band.
The same 2 bits that were interpreted as "ESS" and "IBSS" before are
re-used as a 2-bit field with 3 valid values (and 1 reserved). Valid
values are: "IBSS", "PBSS" (new) and "AP".

In order to get the BSS struct for the new PBSS networks, change the
cfg80211_get_bss() function to take a new enum ieee80211_bss_type
argument with the valid network types, as "capa_mask" and "capa_val"
no longer work correctly (the search must be band-aware now.)

The remaining bits in "capa_mask" and "capa_val" are used only for
privacy matching so replace those two with a privacy enum as well.

Signed-off-by: Dedy Lansky 
[rewrite commit log, tiny fixes]
Signed-off-by: Johannes Berg

cfg80211/mac80211: add wmm info to assoc event

2014-09-11T10:24:39+00:00

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

cfg80211: remove @gfp parameter from cfg80211_rx_mgmt()

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

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 
Signed-off-by: Johannes Berg

cfg80211: change wiphy_to_dev function name

2014-04-25T15:33:04+00:00

Name wiphy_to_rdev is more accurate to describe what the function
does, i.e., return a pointer pointing to struct
cfg80211_registered_device.

Signed-off-by: Zhao, Gang 
Signed-off-by: Johannes Berg

cfg80211/mac80211: move interface counting for combination check to mac80211

2014-04-09T08:55:43+00:00

Move the counting part of the interface combination check from
cfg80211 to mac80211.

This is needed to simplify locking when the driver has to perform a
combination check by itself (eg. with channel-switch).

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

cfg80211: DFS get CAC time from regulatory database

2014-02-25T16:32:54+00:00

Send Channel Availability Check time as a parameter
of start_radar_detection() callback.
Get CAC time from regulatory database.

Signed-off-by: Janusz Dziedzic 
Signed-off-by: Johannes Berg

cfg80211: consider existing DFS interfaces

2014-02-04T20:58:17+00:00

It was possible to break interface combinations in
the following way:

 combo 1: iftype = AP, num_ifaces = 2, num_chans = 2,
 combo 2: iftype = AP, num_ifaces = 1, num_chans = 1, radar = HT20

With the above interface combinations it was
possible to:

 step 1. start AP on DFS channel by matching combo 2
 step 2. start AP on non-DFS channel by matching combo 1

This was possible beacuse (step 2) did not consider
if other interfaces require radar detection.

The patch changes how cfg80211 tracks channels -
instead of channel itself now a complete chandef
is stored.

Signed-off-by: Michal Kazior 
Signed-off-by: Johannes Berg

cfg80211: aggregate mgmt_tx parameters into a struct

2013-12-02T10:51:52+00:00

Change cfg80211 and mac80211 to use cfg80211_mgmt_tx_params
struct to aggregate parameters for mgmt_tx functions.
This makes the functions' signatures less clumsy and allows
less painful parameters extension.

Signed-off-by: Andrei Otcheretianski 
[fix all other drivers]
Signed-off-by: Johannes Berg

cfg80211/mac80211: DFS setup chandef for cac event

2013-11-25T19:50:46+00:00

To report channel width correctly we have
to send correct channel parameters from
mac80211 when calling cfg80211_cac_event().

This is required in case of using channel width
higher than 20MHz and we have to set correct
dfs channel state after CAC (NL80211_DFS_AVAILABLE).

Signed-off-by: Janusz Dziedzic 
Reviewed-by: Luis R. Rodriguez 
Signed-off-by: Johannes Berg