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-rw-r--r--package/mac80211/patches/540-wds_assoc_dummyframe.patch76
1 files changed, 76 insertions, 0 deletions
diff --git a/package/mac80211/patches/540-wds_assoc_dummyframe.patch b/package/mac80211/patches/540-wds_assoc_dummyframe.patch
new file mode 100644
index 000000000..9efb3ac6d
--- /dev/null
+++ b/package/mac80211/patches/540-wds_assoc_dummyframe.patch
@@ -0,0 +1,76 @@
+--- a/net/mac80211/mlme.c
++++ b/net/mac80211/mlme.c
+@@ -312,6 +312,38 @@ void ieee80211_send_nullfunc(struct ieee
+ ieee80211_tx_skb(sdata, skb);
+ }
+
++static void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local,
++ struct ieee80211_sub_if_data *sdata)
++{
++ struct sk_buff *skb;
++ struct ieee80211_hdr *nullfunc;
++ __le16 fc;
++
++ if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
++ return;
++
++ skb = dev_alloc_skb(local->hw.extra_tx_headroom + 30);
++ if (!skb) {
++ printk(KERN_DEBUG "%s: failed to allocate buffer for 4addr "
++ "nullfunc frame\n", sdata->name);
++ return;
++ }
++ skb_reserve(skb, local->hw.extra_tx_headroom);
++
++ nullfunc = (struct ieee80211_hdr *) skb_put(skb, 30);
++ memset(nullfunc, 0, 30);
++ fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC |
++ IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS);
++ nullfunc->frame_control = fc;
++ memcpy(nullfunc->addr1, sdata->u.mgd.bssid, ETH_ALEN);
++ memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
++ memcpy(nullfunc->addr3, sdata->u.mgd.bssid, ETH_ALEN);
++ memcpy(nullfunc->addr4, sdata->vif.addr, ETH_ALEN);
++
++ IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
++ ieee80211_tx_skb(sdata, skb);
++}
++
+ /* spectrum management related things */
+ static void ieee80211_chswitch_work(struct work_struct *work)
+ {
+@@ -1120,6 +1152,13 @@ static bool ieee80211_assoc_success(stru
+ ieee80211_set_associated(sdata, cbss, changed);
+
+ /*
++ * If we're using 4-addr mode, let the AP know that we're
++ * doing so, so that it can create the STA VLAN on its side
++ */
++ if (ifmgd->use_4addr)
++ ieee80211_send_4addr_nullfunc(local, sdata);
++
++ /*
+ * Start timer to probe the connection to the AP now.
+ * Also start the timer that will detect beacon loss.
+ */
+--- a/net/mac80211/rx.c
++++ b/net/mac80211/rx.c
+@@ -1111,6 +1111,18 @@ ieee80211_rx_h_sta_process(struct ieee80
+ if (ieee80211_is_nullfunc(hdr->frame_control) ||
+ ieee80211_is_qos_nullfunc(hdr->frame_control)) {
+ I802_DEBUG_INC(rx->local->rx_handlers_drop_nullfunc);
++
++ /*
++ * If we receive a 4-addr nullfunc frame from a STA
++ * that was not moved to a 4-addr STA vlan yet, drop
++ * the frame to the monitor interface, to make sure
++ * that hostapd sees it
++ */
++ if (ieee80211_has_a4(hdr->frame_control) &&
++ (rx->sdata->vif.type == NL80211_IFTYPE_AP ||
++ (rx->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
++ !rx->sdata->u.vlan.sta)))
++ return RX_DROP_MONITOR;
+ /*
+ * Update counter and free packet here to avoid
+ * counting this as a dropped packed.