package/mac80211/patches/531-mac80211_fix_iftype_wds.patch

   1 --- a/net/mac80211/rx.c
   2 +++ b/net/mac80211/rx.c
   3 @@ -2335,13 +2335,14 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_
   4
   5         if (!ieee80211_vif_is_mesh(&sdata->vif) &&
   6             sdata->vif.type != NL80211_IFTYPE_ADHOC &&
   7 -           sdata->vif.type != NL80211_IFTYPE_STATION)
   8 +           sdata->vif.type != NL80211_IFTYPE_STATION &&
   9 +           sdata->vif.type != NL80211_IFTYPE_WDS)
  10                 return RX_DROP_MONITOR;
  11
  12         switch (stype) {
  13         case cpu_to_le16(IEEE80211_STYPE_BEACON):
  14         case cpu_to_le16(IEEE80211_STYPE_PROBE_RESP):
  15 -               /* process for all: mesh, mlme, ibss */
  16 +               /* process for all: mesh, mlme, ibss, wds */
  17                 break;
  18         case cpu_to_le16(IEEE80211_STYPE_DEAUTH):
  19         case cpu_to_le16(IEEE80211_STYPE_DISASSOC):
  20 @@ -2680,7 +2681,10 @@ static int prepare_for_handlers(struct i
  21                 }
  22                 break;
  23         case NL80211_IFTYPE_WDS:
  24 -               if (bssid || !ieee80211_is_data(hdr->frame_control))
  25 +               if (bssid) {
  26 +                       if (!ieee80211_is_beacon(hdr->frame_control))
  27 +                               return 0;
  28 +               } else if (!ieee80211_is_data(hdr->frame_control))
  29                         return 0;
  30                 if (compare_ether_addr(sdata->u.wds.remote_addr, hdr->addr2))
  31                         return 0;
  32 --- a/net/mac80211/iface.c
  33 +++ b/net/mac80211/iface.c
  34 @@ -178,7 +178,6 @@ static int ieee80211_do_open(struct net_
  35  {
  36         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  37         struct ieee80211_local *local = sdata->local;
  38 -       struct sta_info *sta;
  39         u32 changed = 0;
  40         int res;
  41         u32 hw_reconf_flags = 0;
  42 @@ -290,27 +289,6 @@ static int ieee80211_do_open(struct net_
  43
  44         set_bit(SDATA_STATE_RUNNING, &sdata->state);
  45
  46 -       if (sdata->vif.type == NL80211_IFTYPE_WDS) {
  47 -               /* Create STA entry for the WDS peer */
  48 -               sta = sta_info_alloc(sdata, sdata->u.wds.remote_addr,
  49 -                                    GFP_KERNEL);
  50 -               if (!sta) {
  51 -                       res = -ENOMEM;
  52 -                       goto err_del_interface;
  53 -               }
  54 -
  55 -               /* no locking required since STA is not live yet */
  56 -               sta->flags |= WLAN_STA_AUTHORIZED;
  57 -
  58 -               res = sta_info_insert(sta);
  59 -               if (res) {
  60 -                       /* STA has been freed */
  61 -                       goto err_del_interface;
  62 -               }
  63 -
  64 -               rate_control_rate_init(sta);
  65 -       }
  66 -
  67         /*
  68          * set_multicast_list will be invoked by the networking core
  69          * which will check whether any increments here were done in
  70 @@ -344,8 +322,7 @@ static int ieee80211_do_open(struct net_
  71         netif_tx_start_all_queues(dev);
  72
  73         return 0;
  74 - err_del_interface:
  75 -       drv_remove_interface(local, &sdata->vif);
  76 +
  77   err_stop:
  78         if (!local->open_count)
  79                 drv_stop(local);
  80 @@ -718,6 +695,70 @@ static void ieee80211_if_setup(struct ne
  81         dev->destructor = free_netdev;
  82  }
  83
  84 +static void ieee80211_wds_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
  85 +                                        struct sk_buff *skb)
  86 +{
  87 +       struct ieee80211_local *local = sdata->local;
  88 +       struct ieee80211_rx_status *rx_status;
  89 +       struct ieee802_11_elems elems;
  90 +       struct ieee80211_mgmt *mgmt;
  91 +       struct sta_info *sta;
  92 +       size_t baselen;
  93 +       u32 rates = 0;
  94 +       u16 stype;
  95 +       bool new = false;
  96 +       enum ieee80211_band band = local->hw.conf.channel->band;
  97 +       struct ieee80211_supported_band *sband = local->hw.wiphy->bands[band];
  98 +
  99 +       rx_status = IEEE80211_SKB_RXCB(skb);
 100 +       mgmt = (struct ieee80211_mgmt *) skb->data;
 101 +       stype = le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE;
 102 +
 103 +       if (stype != IEEE80211_STYPE_BEACON)
 104 +               return;
 105 +
 106 +       baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt;
 107 +       if (baselen > skb->len)
 108 +               return;
 109 +
 110 +       ieee802_11_parse_elems(mgmt->u.probe_resp.variable,
 111 +                              skb->len - baselen, &elems);
 112 +
 113 +       rates = ieee80211_sta_get_rates(local, &elems, band);
 114 +
 115 +       rcu_read_lock();
 116 +
 117 +       sta = sta_info_get(sdata, sdata->u.wds.remote_addr);
 118 +
 119 +       if (!sta) {
 120 +               rcu_read_unlock();
 121 +               sta = sta_info_alloc(sdata, sdata->u.wds.remote_addr,
 122 +                                    GFP_KERNEL);
 123 +               if (!sta)
 124 +                       return;
 125 +
 126 +               new = true;
 127 +       }
 128 +
 129 +       sta->last_rx = jiffies;
 130 +       sta->sta.supp_rates[local->hw.conf.channel->band] = rates;
 131 +
 132 +       if (elems.ht_cap_elem)
 133 +               ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
 134 +                               elems.ht_cap_elem, &sta->sta.ht_cap);
 135 +
 136 +       if (elems.wmm_param)
 137 +               set_sta_flags(sta, WLAN_STA_WME);
 138 +
 139 +       if (new) {
 140 +               sta->flags = WLAN_STA_AUTHORIZED;
 141 +               rate_control_rate_init(sta);
 142 +               sta_info_insert_rcu(sta);
 143 +       }
 144 +
 145 +       rcu_read_unlock();
 146 +}
 147 +
 148  static void ieee80211_iface_work(struct work_struct *work)
 149  {
 150         struct ieee80211_sub_if_data *sdata =
 151 @@ -822,6 +863,9 @@ static void ieee80211_iface_work(struct
 152                                 break;
 153                         ieee80211_mesh_rx_queued_mgmt(sdata, skb);
 154                         break;
 155 +               case NL80211_IFTYPE_WDS:
 156 +                       ieee80211_wds_rx_queued_mgmt(sdata, skb);
 157 +                       break;
 158                 default:
 159                         WARN(1, "frame for unexpected interface type");
 160                         break;