linux.git/net/mac80211/key.c, branch v3.18

mac80211: clear key material when freeing keys

2014-09-11T10:07:23+00:00

When freeing the key, clear the memory to avoid having the
key material stick around in memory "forever".

Signed-off-by: Johannes Berg

mac80211: 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

mac80211: Fix accounting of the tailroom-needed counter

2014-08-26T09:15:59+00:00

When hw acceleration is enabled, the GENERATE_IV or PUT_IV_SPACE flags
will only require headroom space. Consequently, the tailroom-needed
counter can safely be decremented.

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

mac80211: remove useless NULL checks

2014-07-21T14:04:27+00:00

sdata can't be NULL, and key being NULL is really not possible
unless the code is modified.

The sdata check made a static analyze (klocwork) unhappy because
we would get pointer to local (sdata->local) and only then check
if sdata is non-NULL.

Signed-off-by: Eytan Lifshitz 
Signed-off-by: Emmanuel Grumbach 
[remove !key check as well]
Signed-off-by: Johannes Berg

mac80211: remove BUG_ON usage

2014-04-29T15:59:27+00:00

These BUG_ON statements should never trigger, but in the unlikely
event that somebody does manage don't stop everything but simply
exit the code path with an error.

Leave the one BUG_ON where changing it would result in a NULL
pointer dereference.

Signed-off-by: Johannes Berg

mac80211: free all AP/VLAN keys at once

2013-12-16T10:29:48+00:00

When the AP interface is stopped, free all AP and VLAN keys at
once to only require synchronize_net() once. Since that does
synchronize_net(), also move two such calls into the function
(using the new force_synchronize parameter) to avoid doing it
twice.

Signed-off-by: Johannes Berg

mac80211: move synchronize_net() before sta key removal

2013-12-16T10:29:46+00:00

There's no reason to do this inside the sta key removal
since the keys can only be reached through the sta (and
not by the driver at all) so once the sta can no longer
be reached, the keys are safe.

This will allow further optimisation opportunities with
multiple stations.

Signed-off-by: Johannes Berg

mac80211: add generic cipher scheme support

2013-11-25T19:50:52+00:00

This adds generic cipher scheme support to mac80211, such schemes
are fully under control by the driver. On hw registration drivers
may specify additional HW ciphers with a scheme how these ciphers
have to be handled by mac80211 TX/RR. A cipher scheme specifies a
cipher suite value, a size of the security header to be added to
or stripped from frames and how the PN is to be verified on RX.

Signed-off-by: Max Stepanov 
Signed-off-by: Johannes Berg

mac80211: verify ieee80211_key_replace() arguments

2013-11-25T19:50:44+00:00

There's no code calling ieee80211_key_replace() with both
arguments NULL and it wouldn't make sense, but in the
interest of maintainability add a warning for it. As a
side effect, this also shuts up a smatch warning.

Signed-off-by: Johannes Berg

mac80211: use ERR_CAST()

2013-09-26T11:21:38+00:00

No need for ERR_PTR(PTR_ERR()) since there's ERR_CAST, use it.

Reported-by: Fengguang Wu 
Signed-off-by: Johannes Berg