diff options
| -rw-r--r-- | net/mac80211/rx.c | 80 |
1 files changed, 70 insertions, 10 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 308e502a80eb..50c0803a63ba 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -2609,7 +2609,7 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw, int prepares; struct ieee80211_sub_if_data *prev = NULL; struct sk_buff *skb_new; - struct sta_info *sta, *tmp; + struct sta_info *sta, *tmp, *prev_sta; bool found_sta = false; int err = 0; @@ -2640,22 +2640,74 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw, ieee80211_verify_alignment(&rx); if (ieee80211_is_data(fc)) { + prev_sta = NULL; for_each_sta_info(local, hdr->addr2, sta, tmp) { - rx.sta = sta; found_sta = true; - rx.sdata = sta->sdata; + if (!prev_sta) { + prev_sta = sta; + continue; + } + + rx.sta = prev_sta; + rx.sdata = prev_sta->sdata; rx.flags |= IEEE80211_RX_RA_MATCH; prepares = prepare_for_handlers(rx.sdata, &rx, hdr); - 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; + if (!prepares) + goto next_sta; + + if (status->flag & RX_FLAG_MMIC_ERROR) { + if (rx.flags & IEEE80211_RX_RA_MATCH) + ieee80211_rx_michael_mic_report(hdr, &rx); + goto next_sta; + } + + /* + * frame was destined for the previous interface + * so invoke RX handlers for it + */ + skb_new = skb_copy(skb, GFP_ATOMIC); + if (!skb_new) { + if (net_ratelimit()) + wiphy_debug(local->hw.wiphy, + "failed to copy multicast" + " frame for %s\n", + prev_sta->sdata->name); + goto next_sta; + } + ieee80211_invoke_rx_handlers(prev_sta->sdata, &rx, + skb_new); +next_sta: + prev_sta = sta; + } /* for all STA info */ + + if (prev_sta) { + rx.sta = prev_sta; + rx.sdata = prev_sta->sdata; + + rx.flags |= IEEE80211_RX_RA_MATCH; + prepares = prepare_for_handlers(rx.sdata, &rx, hdr); + if (!prepares) + prev_sta = NULL; + + if (prev_sta && status->flag & RX_FLAG_MMIC_ERROR) { + if (rx.flags & IEEE80211_RX_RA_MATCH) + ieee80211_rx_michael_mic_report(hdr, &rx); + prev_sta = NULL; } } - } + + + if (prev_sta) { + ieee80211_invoke_rx_handlers(prev_sta->sdata, &rx, skb); + return; + } else { + if (found_sta) { + dev_kfree_skb(skb); + return; + } + } + } /* if data frame */ if (!found_sta) { list_for_each_entry_rcu(sdata, &local->interfaces, list) { if (!ieee80211_sdata_running(sdata)) @@ -2718,6 +2770,14 @@ next: if (!prepares) prev = NULL; + + if (prev && status->flag & RX_FLAG_MMIC_ERROR) { + rx.sdata = prev; + if (rx.flags & IEEE80211_RX_RA_MATCH) + ieee80211_rx_michael_mic_report(hdr, + &rx); + prev = NULL; + } } } if (prev) |