mac80211: rework wds sta fix - check for the protocol of the incoming frame instead...
[openwrt/svn-archive/archive.git] / package / mac80211 / patches / 560-mac80211_wds_sta_fix.patch
index a0418b63098c39ecda8b893594483338fcc8dc2c..ba04a6fc3e2a52077c2704aa31dae9c0b1560576 100644 (file)
@@ -1,18 +1,42 @@
 --- a/net/mac80211/rx.c
 +++ b/net/mac80211/rx.c
-@@ -1561,9 +1561,13 @@ __ieee80211_data_to_8023(struct ieee8021
+@@ -1556,17 +1556,36 @@ __ieee80211_data_to_8023(struct ieee8021
+ {
+       struct ieee80211_sub_if_data *sdata = rx->sdata;
+       struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
++      bool check_port_control = false;
++      struct ethhdr *ehdr;
++      int ret;
+       if (ieee80211_has_a4(hdr->frame_control) &&
            sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
                return -1;
  
-+      if (!ieee80211_802_1x_port_control(rx) &&
-+          sdata->vif.type == NL80211_IFTYPE_STATION &&
-+          !!sdata->u.mgd.use_4addr != !!ieee80211_has_a4(hdr->frame_control))
-+              return -1;
++      if (sdata->vif.type == NL80211_IFTYPE_STATION &&
++          !!sdata->u.mgd.use_4addr != !!ieee80211_has_a4(hdr->frame_control)) {
++
++              if (!sdata->u.mgd.use_4addr)
++                      return -1;
++              else
++                      check_port_control = true;
++      }
 +
        if (is_multicast_ether_addr(hdr->addr1) &&
 -          ((sdata->vif.type == NL80211_IFTYPE_AP_VLAN && sdata->u.vlan.sta) ||
 -           (sdata->vif.type == NL80211_IFTYPE_STATION && sdata->u.mgd.use_4addr)))
 +          sdata->vif.type == NL80211_IFTYPE_AP_VLAN && sdata->u.vlan.sta)
++              return -1;
++
++      ret = ieee80211_data_to_8023(rx->skb, sdata->vif.addr, sdata->vif.type);
++      if (ret < 0 || !check_port_control)
++              return ret;
++
++      ehdr = (struct ethhdr *) rx->skb->data;
++      if (ehdr->h_proto != rx->sdata->control_port_protocol)
                return -1;
  
-       return ieee80211_data_to_8023(rx->skb, sdata->vif.addr, sdata->vif.type);
+-      return ieee80211_data_to_8023(rx->skb, sdata->vif.addr, sdata->vif.type);
++      return 0;
+ }
+ /*