I'm picking up and extending Victor Goldenshteins work on DFS
ability in AP mode. See changelog in the various patches for
details. The main changes are:
* the freuency within start_radar_detection is now used for the
channel, dependency on __nl80211_set_channel is removed
* enable_tx command removed, respective checks are now in start_ap
* ap channel switch implicitly stops AP when changing to a radar
channel. Userspace must then restart radar detection and can
start the AP again after that
=> both changes from above are done to have a clean state of
channel - low level driver should not care about whether
a channel is a radar channel and when to be quiet. This way, all
the control over the channel state keeps in nl80211.
* add new SINGLE_ONLY channel mode to prevent other MultiSSID/MultiVIF use
* prevent scan/roc to run at the same time as the AP
* move dfs capability checks into reg_can_beacon()
* change most of the functions to use the new chandef instead of
channel, channel_type ...
* rebased on latest master, of course
I'm sending this as patch to keep the versioning, although it can be
considered as RFC, I would be suprised if all single channel/single
interface aspects were considered correctly. :)
The implementation works for me [tm] with a dummy dfs-implementation
in ath9k and a patched hostapd - the hostapd patches will be sent later
once this patchset is in shape (Victors patches plus some dirty
modifications, need to clean it up first).
Any comment/review/etc are very much appreciated!
Thanks,
Simon
Simon Wunderlich (4):
cfg80211: add CHAN_MODE_SINGLE_ONLY for DFS use
cfg/mac80211: add dfs capability to cfg80211_reg_can_beacon()
mac80211: check radar interaction with scan and roc
nl80211: allow DFS in start_ap
Victor Goldenshtein (4):
nl80211/cfg80211: add radar detection command/event
mac80211: add radar detection command/event
nl80211/cfg80211: add ap channel switch command
mac80211: add ap channel switch command/event
include/net/cfg80211.h | 68 ++++++++++++++-
include/net/mac80211.h | 46 ++++++++++
include/uapi/linux/nl80211.h | 39 +++++++++
net/mac80211/cfg.c | 65 +++++++++++++-
net/mac80211/driver-ops.h | 26 ++++++
net/mac80211/ibss.c | 2 +-
net/mac80211/ieee80211_i.h | 7 ++
net/mac80211/iface.c | 6 ++
net/mac80211/main.c | 2 +
net/mac80211/mlme.c | 77 +++++++++++++++++
net/mac80211/scan.c | 3 +
net/mac80211/trace.h | 121 ++++++++++++++++++++++++++
net/wireless/chan.c | 23 +++--
net/wireless/core.h | 1 +
net/wireless/mesh.c | 2 +-
net/wireless/mlme.c | 32 ++++++-
net/wireless/nl80211.c | 194 ++++++++++++++++++++++++++++++++++++++++--
net/wireless/nl80211.h | 9 +-
net/wireless/trace.h | 11 ++-
net/wireless/util.c | 14 +++
20 files changed, 723 insertions(+), 25 deletions(-)
--
1.7.10.4
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