diff options
| -rw-r--r-- | net/mac80211/rx.c | 47 |
1 files changed, 23 insertions, 24 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 6bce97ee253..68d9e9c8659 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1818,11 +1818,11 @@ static void ieee80211_rx_michael_mic_report(struct ieee80211_hdr *hdr, * Some hardware seem to generate incorrect Michael MIC * reports; ignore them to avoid triggering countermeasures. */ - goto ignore; + return; } if (!ieee80211_has_protected(hdr->frame_control)) - goto ignore; + return; if (rx->sdata->vif.type == NL80211_IFTYPE_AP && keyidx) { /* @@ -1831,18 +1831,15 @@ static void ieee80211_rx_michael_mic_report(struct ieee80211_hdr *hdr, * group keys and only the AP is sending real multicast * frames in the BSS. */ - goto ignore; + return; } if (!ieee80211_is_data(hdr->frame_control) && !ieee80211_is_auth(hdr->frame_control)) - goto ignore; + return; mac80211_ev_michael_mic_failure(rx->sdata, keyidx, hdr, NULL, GFP_ATOMIC); - ignore: - dev_kfree_skb(rx->skb); - rx->skb = NULL; } /* TODO: use IEEE80211_RX_FRAGMENTED */ @@ -2064,8 +2061,6 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata, return 0; break; case NL80211_IFTYPE_MONITOR: - /* take everything */ - break; case NL80211_IFTYPE_UNSPECIFIED: case __NL80211_IFTYPE_AFTER_LAST: /* should never get here */ @@ -2097,24 +2092,12 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw, memset(&rx, 0, sizeof(rx)); rx.skb = skb; rx.local = local; - rx.status = status; rx.rate = rate; if (ieee80211_is_data(hdr->frame_control) || ieee80211_is_mgmt(hdr->frame_control)) local->dot11ReceivedFragmentCount++; - rx.sta = sta_info_get(local, hdr->addr2); - if (rx.sta) { - rx.sdata = rx.sta->sdata; - rx.dev = rx.sta->sdata->dev; - } - - if ((status->flag & RX_FLAG_MMIC_ERROR)) { - ieee80211_rx_michael_mic_report(hdr, &rx); - return; - } - if (unlikely(test_bit(SCAN_HW_SCANNING, &local->scanning) || test_bit(SCAN_OFF_CHANNEL, &local->scanning))) rx.flags |= IEEE80211_RX_IN_SCAN; @@ -2122,13 +2105,22 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw, ieee80211_parse_qos(&rx); ieee80211_verify_alignment(&rx); - skb = rx.skb; + rx.sta = sta_info_get(local, hdr->addr2); + if (rx.sta) { + rx.sdata = rx.sta->sdata; + rx.dev = rx.sta->sdata->dev; + } if (rx.sdata && ieee80211_is_data(hdr->frame_control)) { rx.flags |= IEEE80211_RX_RA_MATCH; prepares = prepare_for_handlers(rx.sdata, &rx, hdr); - if (prepares) - prev = rx.sdata; + if (prepares) { + if (status->flag & RX_FLAG_MMIC_ERROR) { + if (rx.flags & IEEE80211_RX_RA_MATCH) + ieee80211_rx_michael_mic_report(hdr, &rx); + } else + prev = rx.sdata; + } } else list_for_each_entry_rcu(sdata, &local->interfaces, list) { if (!netif_running(sdata->dev)) continue; @@ -2143,6 +2135,13 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw, if (!prepares) continue; + if (status->flag & RX_FLAG_MMIC_ERROR) { + rx.sdata = sdata; + if (rx.flags & IEEE80211_RX_RA_MATCH) + ieee80211_rx_michael_mic_report(hdr, &rx); + continue; + } + /* * frame is destined for this interface, but if it's not * also for the previous one we handle that after the |