lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

mac80211: add sta_state callback

Browse Source 
(based on Eliad's patch)

Add a callback to notify the low-level driver whenever
the state of a station changes. The driver is only
notified when the station is actually in the mac80211
hash table, not for pre-insert state transitions.

To allow the driver to replace sta_add/remove calls
with this, call extra transitions with the NOTEXIST
state.

This callback can fail, so we need to be careful in
handling it when a station is inserted, particularly
in the IBSS case where we still keep the station entry
around for mac80211 purposes.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg
2012-01-20 13:55:21 +01:00
committed by John W. Linville
parent 71ec375c75
commit f09603a259
8 changed files with 202 additions and 36 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
include/net/mac80211.h
View File

@ -981,6 +981,25 @@ enum set_key_cmd {
SET_KEY, DISABLE_KEY,
};
/**
* enum ieee80211_sta_state - station state
*
* @IEEE80211_STA_NOTEXIST: station doesn't exist at all,
* this is a special state for add/remove transitions
* @IEEE80211_STA_NONE: station exists without special state
* @IEEE80211_STA_AUTH: station is authenticated
* @IEEE80211_STA_ASSOC: station is associated
* @IEEE80211_STA_AUTHORIZED: station is authorized (802.1X)
*/
enum ieee80211_sta_state {
/* NOTE: These need to be ordered correctly! */
IEEE80211_STA_NOTEXIST,
IEEE80211_STA_NONE,
IEEE80211_STA_AUTH,
IEEE80211_STA_ASSOC,
IEEE80211_STA_AUTHORIZED,
};
/**
* struct ieee80211_sta - station table entry
*
@ -1974,6 +1993,13 @@ enum ieee80211_frame_release_type {
* in AP mode, this callback will not be called when the flag
* %IEEE80211_HW_AP_LINK_PS is set. Must be atomic.
*
* @sta_state: Notifies low level driver about state transition of a
* station (which can be the AP, a client, IBSS/WDS/mesh peer etc.)
* This callback is mutually exclusive with @sta_add/@sta_remove.
* It must not fail for down transitions but may fail for transitions
* up the list of states.
* The callback can sleep.
*
* @conf_tx: Configure TX queue parameters (EDCF (aifs, cw_min, cw_max),
* bursting) for a hardware TX queue.
* Returns a negative error code on failure.
@ -2193,6 +2219,10 @@ struct ieee80211_ops {
struct ieee80211_sta *sta);
void (*sta_notify)(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
enum sta_notify_cmd, struct ieee80211_sta *sta);
int (*sta_state)(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
enum ieee80211_sta_state old_state,
enum ieee80211_sta_state new_state);
int (*conf_tx)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif, u16 queue,
const struct ieee80211_tx_queue_params *params);