mac80211: A-MPDU Rx adding BAR handling capability

This patch adds the ability to handle Block Ack Request

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 14 insertions, 1 deletions

diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 2b02b2b9d645..adb85dd5098d 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -127,7 +127,8 @@ void ieee80211_prepare_rates(struct ieee80211_local *local,
         }
 }
 
-u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len)
+u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
+                        enum ieee80211_if_types type)
 {
         u16 fc;
 
@@ -159,6 +160,18 @@ u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len)
         case IEEE80211_FTYPE_CTL:
                 if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL)
                         return hdr->addr1;
+                else if ((fc & IEEE80211_FCTL_STYPE) ==
+                                                IEEE80211_STYPE_BACK_REQ) {
+                        switch (type) {
+                        case IEEE80211_IF_TYPE_STA:
+                                return hdr->addr2;
+                        case IEEE80211_IF_TYPE_AP:
+                        case IEEE80211_IF_TYPE_VLAN:
+                                return hdr->addr1;
+                        default:
+                                return NULL;
+                        }
+                }
                 else
                         return NULL;
         }