diff options
Diffstat (limited to 'net/mac80211/rx.c')
| -rw-r--r-- | net/mac80211/rx.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 359fc394a3b0..54858a68abd7 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1586,7 +1586,7 @@ ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx) } static int -__ieee80211_data_to_8023(struct ieee80211_rx_data *rx) +__ieee80211_data_to_8023(struct ieee80211_rx_data *rx, bool *port_control) { struct ieee80211_sub_if_data *sdata = rx->sdata; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data; @@ -1594,6 +1594,7 @@ __ieee80211_data_to_8023(struct ieee80211_rx_data *rx) struct ethhdr *ehdr; int ret; + *port_control = false; if (ieee80211_has_a4(hdr->frame_control) && sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta) return -1; @@ -1612,11 +1613,13 @@ __ieee80211_data_to_8023(struct ieee80211_rx_data *rx) return -1; ret = ieee80211_data_to_8023(rx->skb, sdata->vif.addr, sdata->vif.type); - if (ret < 0 || !check_port_control) + if (ret < 0) return ret; ehdr = (struct ethhdr *) rx->skb->data; - if (ehdr->h_proto != rx->sdata->control_port_protocol) + if (ehdr->h_proto == rx->sdata->control_port_protocol) + *port_control = true; + else if (check_port_control) return -1; return 0; @@ -1917,6 +1920,7 @@ ieee80211_rx_h_data(struct ieee80211_rx_data *rx) struct net_device *dev = sdata->dev; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data; __le16 fc = hdr->frame_control; + bool port_control; int err; if (unlikely(!ieee80211_is_data(hdr->frame_control))) @@ -1933,13 +1937,21 @@ ieee80211_rx_h_data(struct ieee80211_rx_data *rx) sdata->vif.type == NL80211_IFTYPE_AP) return RX_DROP_MONITOR; - err = __ieee80211_data_to_8023(rx); + err = __ieee80211_data_to_8023(rx, &port_control); if (unlikely(err)) return RX_DROP_UNUSABLE; if (!ieee80211_frame_allowed(rx, fc)) return RX_DROP_MONITOR; + if (rx->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && + unlikely(port_control) && sdata->bss) { + sdata = container_of(sdata->bss, struct ieee80211_sub_if_data, + u.ap); + dev = sdata->dev; + rx->sdata = sdata; + } + rx->skb->dev = dev; dev->stats.rx_packets++; |