diff options
Diffstat (limited to 'net/mac80211')
| -rw-r--r-- | net/mac80211/rx.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index a6080d8d72b..b5c48de81d8 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1397,6 +1397,21 @@ ieee80211_drop_unencrypted(struct ieee80211_rx_data *rx, __le16 fc) ieee80211_is_data(fc) && (rx->key || rx->sdata->drop_unencrypted))) return -EACCES; + + return 0; +} + +static int +ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx) +{ + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data; + __le16 fc = hdr->frame_control; + int res; + + res = ieee80211_drop_unencrypted(rx, fc); + if (unlikely(res)) + return res; + if (rx->sta && test_sta_flags(rx->sta, WLAN_STA_MFP)) { if (unlikely(ieee80211_is_unicast_robust_mgmt_frame(rx->skb) && rx->key)) @@ -1872,7 +1887,7 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx) if (!(rx->flags & IEEE80211_RX_RA_MATCH)) return RX_DROP_UNUSABLE; - if (ieee80211_drop_unencrypted(rx, mgmt->frame_control)) + if (ieee80211_drop_unencrypted_mgmt(rx)) return RX_DROP_UNUSABLE; switch (mgmt->u.action.category) { @@ -2014,14 +2029,13 @@ static ieee80211_rx_result debug_noinline ieee80211_rx_h_mgmt(struct ieee80211_rx_data *rx) { struct ieee80211_sub_if_data *sdata = rx->sdata; - struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *) rx->skb->data; ieee80211_rx_result rxs; if (!(rx->flags & IEEE80211_RX_RA_MATCH)) return RX_DROP_MONITOR; - if (ieee80211_drop_unencrypted(rx, mgmt->frame_control)) - return RX_DROP_MONITOR; + if (ieee80211_drop_unencrypted_mgmt(rx)) + return RX_DROP_UNUSABLE; rxs = ieee80211_work_rx_mgmt(rx->sdata, rx->skb); if (rxs != RX_CONTINUE) |