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authorJohannes Berg <johannes.berg@intel.com>2011-11-04 14:18:18 +0400
committerJohn W. Linville <linville@tuxdriver.com>2011-11-10 01:13:52 +0400
commitee971924543fe82f279d3e97f6f6d02320b381b7 (patch)
tree8388d05cedbdf969fe05de3c752c0bf24f67efb3 /net/mac80211
parent5e760230e42cf759bd923457ca2753aacf2e656e (diff)
downloadlinux-ee971924543fe82f279d3e97f6f6d02320b381b7.tar.xz
mac80211: report OBSS beacons
If there's an interface in AP mode, OBSS beacons are needed by hostapd/wpa_s to implement logic to enable/disable protection etc. Report the frames and set the capability flag. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/ieee80211_i.h3
-rw-r--r--net/mac80211/main.c3
-rw-r--r--net/mac80211/rx.c12
3 files changed, 17 insertions, 1 deletions
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 386330c89baf..4bef6eca1722 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -184,12 +184,15 @@ enum ieee80211_packet_rx_flags {
* enum ieee80211_rx_flags - RX data flags
*
* @IEEE80211_RX_CMNTR: received on cooked monitor already
+ * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
+ * to cfg80211_report_obss_beacon().
*
* These flags are used across handling multiple interfaces
* for a single frame.
*/
enum ieee80211_rx_flags {
IEEE80211_RX_CMNTR = BIT(0),
+ IEEE80211_RX_BEACON_REPORTED = BIT(1),
};
struct ieee80211_rx_data {
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 7217019d1ed9..8e9327bca910 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -593,7 +593,8 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
wiphy->flags |= WIPHY_FLAG_NETNS_OK |
WIPHY_FLAG_4ADDR_AP |
- WIPHY_FLAG_4ADDR_STATION;
+ WIPHY_FLAG_4ADDR_STATION |
+ WIPHY_FLAG_REPORTS_OBSS;
if (!ops->set_key)
wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index e832e0dcab3c..2ed882f8a9f8 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -2188,6 +2188,18 @@ ieee80211_rx_h_mgmt_check(struct ieee80211_rx_data *rx)
if (!ieee80211_is_mgmt(mgmt->frame_control))
return RX_DROP_MONITOR;
+ if (rx->sdata->vif.type == NL80211_IFTYPE_AP &&
+ ieee80211_is_beacon(mgmt->frame_control) &&
+ !(rx->flags & IEEE80211_RX_BEACON_REPORTED)) {
+ struct ieee80211_rx_status *status;
+
+ status = IEEE80211_SKB_RXCB(rx->skb);
+ cfg80211_report_obss_beacon(rx->local->hw.wiphy,
+ rx->skb->data, rx->skb->len,
+ status->freq, GFP_ATOMIC);
+ rx->flags |= IEEE80211_RX_BEACON_REPORTED;
+ }
+
if (!(status->rx_flags & IEEE80211_RX_RA_MATCH))
return RX_DROP_MONITOR;