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Diffstat (limited to 'net/mac80211/tx.c')
-rw-r--r--net/mac80211/tx.c45
1 files changed, 37 insertions, 8 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index bfaa43e096d..2f3345c5f7c 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1051,7 +1051,10 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata,
hdr = (struct ieee80211_hdr *) skb->data;
- tx->sta = sta_info_get(local, hdr->addr1);
+ if ((sdata->vif.type == NL80211_IFTYPE_AP_VLAN) && sdata->use_4addr)
+ tx->sta = rcu_dereference(sdata->u.vlan.sta);
+ if (!tx->sta)
+ tx->sta = sta_info_get(local, hdr->addr1);
if (tx->sta && ieee80211_is_data_qos(hdr->frame_control) &&
(local->hw.flags & IEEE80211_HW_AMPDU_AGGREGATION)) {
@@ -1613,7 +1616,7 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
const u8 *encaps_data;
int encaps_len, skip_header_bytes;
int nh_pos, h_pos;
- struct sta_info *sta;
+ struct sta_info *sta = NULL;
u32 sta_flags = 0;
if (unlikely(skb->len < ETH_HLEN)) {
@@ -1630,8 +1633,25 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);
switch (sdata->vif.type) {
- case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_AP_VLAN:
+ rcu_read_lock();
+ if (sdata->use_4addr)
+ sta = rcu_dereference(sdata->u.vlan.sta);
+ if (sta) {
+ fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS);
+ /* RA TA DA SA */
+ memcpy(hdr.addr1, sta->sta.addr, ETH_ALEN);
+ memcpy(hdr.addr2, dev->dev_addr, ETH_ALEN);
+ memcpy(hdr.addr3, skb->data, ETH_ALEN);
+ memcpy(hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN);
+ hdrlen = 30;
+ sta_flags = get_sta_flags(sta);
+ }
+ rcu_read_unlock();
+ if (sta)
+ break;
+ /* fall through */
+ case NL80211_IFTYPE_AP:
fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
/* DA BSSID SA */
memcpy(hdr.addr1, skb->data, ETH_ALEN);
@@ -1705,12 +1725,21 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
break;
#endif
case NL80211_IFTYPE_STATION:
- fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
- /* BSSID SA DA */
memcpy(hdr.addr1, sdata->u.mgd.bssid, ETH_ALEN);
- memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
- memcpy(hdr.addr3, skb->data, ETH_ALEN);
- hdrlen = 24;
+ if (sdata->use_4addr && ethertype != ETH_P_PAE) {
+ fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS);
+ /* RA TA DA SA */
+ memcpy(hdr.addr2, dev->dev_addr, ETH_ALEN);
+ memcpy(hdr.addr3, skb->data, ETH_ALEN);
+ memcpy(hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN);
+ hdrlen = 30;
+ } else {
+ fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
+ /* BSSID SA DA */
+ memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
+ memcpy(hdr.addr3, skb->data, ETH_ALEN);
+ hdrlen = 24;
+ }
break;
case NL80211_IFTYPE_ADHOC:
/* DA SA BSSID */