package/madwifi/patches-r3776/319-eap_auth_disassoc.patch

   1 This patch causes STA mode interfaces to disassociate if transmission of assoc/auth
   2 critical packets failed.
   3
   4 Signed-off-by: Felix Fietkau <nbd@openwrt.org>
   5
   6 Index: madwifi-trunk-r3776/ath/if_ath.c
   7 ===================================================================
   8 --- madwifi-trunk-r3776.orig/ath/if_ath.c       2008-07-17 03:53:09.000000000 +0200
   9 +++ madwifi-trunk-r3776/ath/if_ath.c    2008-07-17 04:00:42.000000000 +0200
  10 @@ -8272,6 +8272,18 @@
  11  #endif
  12                                 if (ts->ts_status & HAL_TXERR_XRETRY) {
  13                                         sc->sc_stats.ast_tx_xretries++;
  14 +                                       if (SKB_CB(bf->bf_skb)->auth_pkt && (ni->ni_vap->iv_opmode == IEEE80211_M_STA)) {
  15 +                                               struct ieee80211com *ic = &sc->sc_ic;
  16 +
  17 +                                               /* if roaming is enabled, try reassociating, otherwise
  18 +                                                * disassociate and go back to the scan state */
  19 +                                               IEEE80211_VAPS_LOCK_BH(ic);
  20 +                                               if (ic->ic_roaming == IEEE80211_ROAMING_AUTO)
  21 +                                                       ni->ni_vap->iv_newstate(ni->ni_vap, IEEE80211_S_ASSOC, 1);
  22 +                                               else
  23 +                                                       ni->ni_vap->iv_newstate(ni->ni_vap, IEEE80211_S_SCAN, 0);
  24 +                                               IEEE80211_VAPS_UNLOCK_BH(ic);
  25 +                                       }
  26                                         if (ni->ni_flags & IEEE80211_NODE_UAPSD_TRIG) {
  27                                                 ni->ni_stats.ns_tx_eosplost++;
  28                                                 DPRINTF(sc, ATH_DEBUG_UAPSD,
  29 Index: madwifi-trunk-r3776/net80211/ieee80211_linux.c
  30 ===================================================================
  31 --- madwifi-trunk-r3776.orig/net80211/ieee80211_linux.c 2008-07-17 00:49:54.000000000 +0200
  32 +++ madwifi-trunk-r3776/net80211/ieee80211_linux.c      2008-07-17 04:01:27.000000000 +0200
  33 @@ -158,6 +158,7 @@
  34
  35                 SKB_NI(skb) = NULL;
  36                 SKB_CB(skb)->flags = 0;
  37 +               SKB_CB(skb)->auth_pkt = 0;
  38
  39                 skb_reserve(skb, sizeof(struct ieee80211_frame));
  40                 *frm = skb_put(skb, pktlen);
  41 Index: madwifi-trunk-r3776/net80211/ieee80211_linux.h
  42 ===================================================================
  43 --- madwifi-trunk-r3776.orig/net80211/ieee80211_linux.h 2008-07-17 00:53:20.000000000 +0200
  44 +++ madwifi-trunk-r3776/net80211/ieee80211_linux.h      2008-07-17 04:02:15.000000000 +0200
  45 @@ -411,6 +411,7 @@
  46  #define M_SKB_TRACKED  0x20
  47         void            (*next_destructor)(struct sk_buff *skb);
  48  #endif
  49 +       u_int8_t auth_pkt;
  50  };
  51
  52  struct __assert {
  53 Index: madwifi-trunk-r3776/net80211/ieee80211_output.c
  54 ===================================================================
  55 --- madwifi-trunk-r3776.orig/net80211/ieee80211_output.c        2008-07-17 02:35:10.000000000 +0200
  56 +++ madwifi-trunk-r3776/net80211/ieee80211_output.c     2008-07-17 04:00:42.000000000 +0200
  57 @@ -773,6 +773,8 @@
  58         else
  59                 hdrsize = sizeof(struct ieee80211_frame);
  60
  61 +       SKB_CB(skb)->auth_pkt = (eh.ether_type == __constant_htons(ETHERTYPE_PAE));
  62 +
  63         switch (vap->iv_opmode) {
  64         case IEEE80211_M_IBSS:
  65         case IEEE80211_M_AHDEMO:
  66 @@ -1617,6 +1619,7 @@
  67         ie->param_len = frm - &ie->param_oui[0];
  68         return frm;
  69  }
  70 +
  71  #endif
  72  /*
  73   * Send a probe request frame with the specified ssid
  74 @@ -1881,6 +1884,7 @@
  75                                 sizeof(u_int16_t)+IEEE80211_CHALLENGE_LEN : 0));
  76                 if (skb == NULL)
  77                         senderr(ENOMEM, is_tx_nobuf);
  78 +               SKB_CB(skb)->auth_pkt = 1;
  79
  80                 ((__le16 *)frm)[0] =
  81                         (is_shared_key) ? htole16(IEEE80211_AUTH_ALG_SHARED)
  82 @@ -1955,6 +1959,7 @@
  83                         vap->app_ie[IEEE80211_APPIE_FRAME_ASSOC_REQ].length);
  84                 if (skb == NULL)
  85                         senderr(ENOMEM, is_tx_nobuf);
  86 +               SKB_CB(skb)->auth_pkt = 1;
  87
  88                 capinfo = 0;
  89                 if (vap->iv_opmode == IEEE80211_M_IBSS)