cfg80211/mac80211: report signal strength for mgmt frames

Add the signal strength (in dBm only for now) to
frames that are received via nl80211's various
frame APIs.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 7 insertions, 2 deletions

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 4b6afc338aac..39dbdf2adb12 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -7686,7 +7686,8 @@ bool nl80211_unexpected_4addr_frame(struct net_device *dev,
 
 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
                       struct net_device *netdev, u32 nlpid,
-                      int freq, const u8 *buf, size_t len, gfp_t gfp)
+                      int freq, int sig_dbm,
+                      const u8 *buf, size_t len, gfp_t gfp)
 {
         struct sk_buff *msg;
         void *hdr;
@@ -7704,6 +7705,8 @@ int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
+        if (sig_dbm)
+                NLA_PUT_U32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm);
         NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
 
         genlmsg_end(msg, hdr);
@@ -7965,7 +7968,7 @@ EXPORT_SYMBOL(cfg80211_probe_status);
 
 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
                                  const u8 *frame, size_t len,
-                                 int freq, gfp_t gfp)
+                                 int freq, int sig_dbm, gfp_t gfp)
 {
         struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
         struct sk_buff *msg;
@@ -7988,6 +7991,8 @@ void cfg80211_report_obss_beacon(struct wiphy *wiphy,
         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
         if (freq)
                 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
+        if (sig_dbm)
+                NLA_PUT_U32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm);
         NLA_PUT(msg, NL80211_ATTR_FRAME, len, frame);
 
         genlmsg_end(msg, hdr);