linux.git/net/wireless/core.c, branch v2.6.31

cfg80211: fix rfkill locking problem

2009-06-10T17:28:41+00:00

rfkill currently requires a global lock within the
rfkill_register() function, and holds that lock over
calls to the set_block() methods. This means that we
cannot hold a lock around rfkill_register() that we
also require in set_block(), directly or indirectly.
Fix cfg80211 to register rfkill outside the block
locked by its global lock. Much of what cfg80211 does
in the locked block doesn't need to be locked anyway.

Reported-by: Vasanthakumar Thiagarajan 
Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville

cfg80211: add rfkill support

2009-06-03T18:06:14+00:00

To be easier on drivers and users, have cfg80211 register an
rfkill structure that drivers can access. When soft-killed,
simply take down all interfaces; when hard-killed the driver
needs to notify us and we will take down the interfaces
after the fact. While rfkilled, interfaces cannot be set UP.

Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville

cfg80211: mark ops as pointer to const

2009-05-20T18:46:27+00:00

This allows drivers to mark their cfg80211_ops tables const.

Signed-off-by: David Kilroy 
Acked-by: Johannes Berg 
Signed-off-by: John W. Linville

mac80211/cfg80211: move wiphy specific debugfs entries to cfg80211

2009-05-20T18:46:23+00:00

This moves the cfg80211 specific stuff to new cfg80211 debugfs
entries. Non-mac80211 will also get these entries now. There were
only 4 which we take:

rts_threshold
fragmentation_threshold
short_retry_limit
long_retry_limit

Signed-off-by: Luis R. Rodriguez 
Signed-off-by: John W. Linville

cfg80211: implement wext key handling

2009-05-13T19:44:32+00:00

Move key handling wireless extension ioctls from mac80211 to cfg80211
so that all drivers that implement the cfg80211 operations get wext
compatibility.

Note that this drops the SIOCGIWENCODE ioctl support for getting
IW_ENCODE_RESTRICTED/IW_ENCODE_OPEN. This means that iwconfig will
no longer report "Security mode:open" or "Security mode:restricted"
for mac80211. However, what we displayed there (the authentication
algo used) was actually wrong -- linux/wireless.h states that this
setting is meant to differentiate between "Refuse non-encoded packets"
and "Accept non-encoded packets".

(Combined with "cfg80211: fix a couple of bugs with key ioctls". -- JWL)

Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville

cfg80211: put wext data into substructure

2009-05-11T19:24:07+00:00

To make it more apparent in the code what is for wext
only (and needs to be #ifdef'ed) put all the info for
wext into a substruct in each wireless_dev.

Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville

cfg80211: clear WEXT SSID when clearing IBSS

2009-04-22T20:57:17+00:00

When we leave an IBSS, we should clear the SSID and not just the
BSSID, but since WEXT allows configuring while the interface is
down we must not clear it when leaving due to taking the iface
down, so some complications are needed.

Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville

nl80211: Add set/get for frag/rts threshold and retry limits

2009-04-22T20:57:17+00:00

Add new nl80211 attributes that can be used with NL80211_CMD_SET_WIPHY
and NL80211_CMD_GET_WIPHY to manage fragmentation/RTS threshold and
retry limits.

Since these values are stored in struct wiphy, remove the local copy
from mac80211 where feasible (frag & rts threshold). The retry limits
are currently needed in struct ieee80211_conf, but these could be
eventually removed since the driver should have access to the values
in struct wiphy.

Signed-off-by: Jouni Malinen 
Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville

cfg80211: clean up includes

2009-04-22T20:57:17+00:00

Trying to separate header files into net/wireless.h and
net/cfg80211.h has been a source of confusion. Remove
net/wireless.h (because there also is the linux/wireless.h)
and subsume everything into net/cfg80211.h -- except the
definitions for regulatory structures which get moved to
a new header net/regulatory.h.

The "new" net/cfg80211.h is now divided into sections.

There are no real changes in this patch but code shuffling
and some very minor documentation fixes.

I have also, to make things reflect reality, put in a
copyright line for Luis to net/regulatory.h since that
is probably exclusively written by him but was formerly
in a file that only had my copyright line.

Signed-off-by: Johannes Berg 
Cc: Luis R. Rodriguez 
Signed-off-by: John W. Linville

cfg80211/nl80211: add IBSS API

2009-04-22T20:57:17+00:00

This adds IBSS API along with (preliminary) wext handlers.
The wext handlers can only do IBSS so you need to call them
from your own wext handlers if the mode is IBSS.

The nl80211 API requires
 * an SSID
 * a channel (frequency) for the case that a new IBSS
   has to be created

It optionally supports
 * a flag to fix the channel
 * a fixed BSSID

The cfg80211 code also takes care to leave the IBSS before
the netdev is set down. If wireless extensions are used, it
also caches values when the interface is down and instructs
the driver to join when the interface is set up.

Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville