mac80211: support remain-on-channel command

This implements the new remain-on-channel cfg80211
command in mac80211, extending the work interface.

Also change the work purge code to be able to clean
up events properly (pretending they timed out.)

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index ea862dfc08ed..2e5e841e9b7b 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1441,6 +1441,28 @@ static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
         return -EINVAL;
 }
 
+static int ieee80211_remain_on_channel(struct wiphy *wiphy,
+                                       struct net_device *dev,
+                                       struct ieee80211_channel *chan,
+                                       enum nl80211_channel_type channel_type,
+                                       unsigned int duration,
+                                       u64 *cookie)
+{
+        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+        return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
+                                              duration, cookie);
+}
+
+static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
+                                              struct net_device *dev,
+                                              u64 cookie)
+{
+        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+        return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
+}
+
 struct cfg80211_ops mac80211_config_ops = {
         .add_virtual_intf = ieee80211_add_iface,
         .del_virtual_intf = ieee80211_del_iface,
@@ -1487,4 +1509,6 @@ struct cfg80211_ops mac80211_config_ops = {
         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
         .set_power_mgmt = ieee80211_set_power_mgmt,
         .set_bitrate_mask = ieee80211_set_bitrate_mask,
+        .remain_on_channel = ieee80211_remain_on_channel,
+        .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
 };