package/madwifi/patches/305-pureg_fix.patch

   1 --- a/ath/if_ath.c
   2 +++ b/ath/if_ath.c
   3 @@ -4160,7 +4160,9 @@
   4                 rfilt |= HAL_RX_FILTER_PROM;
   5         if (ic->ic_opmode == IEEE80211_M_STA ||
   6             sc->sc_opmode == HAL_M_IBSS ||      /* NB: AHDEMO too */
   7 -           (sc->sc_nostabeacons) || sc->sc_scanning)
   8 +           (sc->sc_nostabeacons) || sc->sc_scanning ||
   9 +               ((ic->ic_opmode == IEEE80211_M_HOSTAP) &&
  10 +                (ic->ic_protmode != IEEE80211_PROT_NONE)))
  11                 rfilt |= HAL_RX_FILTER_BEACON;
  12         if (sc->sc_nmonvaps > 0)
  13                 rfilt |= (HAL_RX_FILTER_CONTROL | HAL_RX_FILTER_BEACON |
  14 --- a/net80211/ieee80211_input.c
  15 +++ b/net80211/ieee80211_input.c
  16 @@ -346,11 +346,12 @@
  17                                 bssid = wh->i_addr3;
  18                         }
  19                         /*
  20 -                        * Validate the bssid.
  21 +                        * Validate the bssid. Let beacons get through though for 11g protection mode.
  22                          */
  23 -#ifdef ATH_SUPERG_XR
  24                         if (!IEEE80211_ADDR_EQ(bssid, vap->iv_bssid) &&
  25 -                           !IEEE80211_ADDR_EQ(bssid, dev->broadcast)) {
  26 +                           !IEEE80211_ADDR_EQ(bssid, dev->broadcast) &&
  27 +                               (subtype != IEEE80211_FC0_SUBTYPE_BEACON)) {
  28 +#ifdef ATH_SUPERG_XR
  29                                 /*
  30                                  * allow MGT frames to vap->iv_xrvap.
  31                                  * this will allow roaming between  XR and normal vaps
  32 @@ -366,18 +367,14 @@
  33                                         vap->iv_stats.is_rx_wrongbss++;
  34                                         goto out;
  35                                 }
  36 -                       }
  37  #else
  38 -                       if (!IEEE80211_ADDR_EQ(bssid, vap->iv_bssid) &&
  39 -                           !IEEE80211_ADDR_EQ(bssid, dev->broadcast)) {
  40                                 /* not interested in */
  41                                 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
  42                                         bssid, NULL, "%s", "not to bss");
  43                                 vap->iv_stats.is_rx_wrongbss++;
  44                                 goto out;
  45 -                       }
  46 -
  47  #endif
  48 +                       }
  49                         break;
  50                 case IEEE80211_M_WDS:
  51                         if (skb->len < sizeof(struct ieee80211_frame_addr4)) {
  52 @@ -3066,7 +3063,7 @@
  53         u_int8_t *frm, *efrm;
  54         u_int8_t *ssid, *rates, *xrates, *suppchan, *wpa, *rsn, *wme, *ath;
  55         u_int8_t rate;
  56 -       int reassoc, resp, allocbs = 0;
  57 +       int reassoc, resp, allocbs = 0, has_erp = 0;
  58         u_int8_t qosinfo;
  59
  60         if (ni_or_null == NULL)
  61 @@ -3096,11 +3093,15 @@
  62                  *    o station mode when associated (to collect state
  63                  *      updates such as 802.11g slot time), or
  64                  *    o adhoc mode (to discover neighbors)
  65 +                *    o ap mode in protection mode (beacons only)
  66                  * Frames otherwise received are discarded.
  67                  */
  68                 if (!((ic->ic_flags & IEEE80211_F_SCAN) ||
  69                     (vap->iv_opmode == IEEE80211_M_STA && ni->ni_associd) ||
  70 -                   vap->iv_opmode == IEEE80211_M_IBSS)) {
  71 +                   (vap->iv_opmode == IEEE80211_M_IBSS) ||
  72 +                       ((subtype == IEEE80211_FC0_SUBTYPE_BEACON) &&
  73 +                        (vap->iv_opmode == IEEE80211_M_HOSTAP) &&
  74 +                        (ic->ic_protmode != IEEE80211_PROT_NONE)))) {
  75                         vap->iv_stats.is_rx_mgtdiscard++;
  76                         return;
  77                 }
  78 @@ -3184,6 +3185,7 @@
  79                                         break;
  80                                 }
  81                                 scan.erp = frm[2];
  82 +                               has_erp = 1;
  83                                 break;
  84                         case IEEE80211_ELEMID_RSN:
  85                                 scan.rsn = frm;
  86 @@ -3421,6 +3423,20 @@
  87                                 ieee80211_bg_scan(vap);
  88                         return;
  89                 }
  90 +
  91 +               /* Update AP protection mode when in 11G mode */
  92 +               if ((vap->iv_opmode == IEEE80211_M_HOSTAP) &&
  93 +                       IEEE80211_IS_CHAN_ANYG(ic->ic_curchan)) {
  94 +
  95 +                       /* Assume no ERP IE == 11b AP */
  96 +                       if ((!has_erp || (has_erp && (scan.erp & IEEE80211_ERP_NON_ERP_PRESENT))) &&
  97 +                               !(ic->ic_flags & IEEE80211_F_USEPROT)) {
  98 +
  99 +                               ic->ic_flags |= IEEE80211_F_USEPROT;
 100 +                               ic->ic_flags_ext |= IEEE80211_FEXT_ERPUPDATE;
 101 +                       }
 102 +               }
 103 +
 104                 /*
 105                  * If scanning, just pass information to the scan module.
 106                  */
 107 --- a/net80211/ieee80211_node.c
 108 +++ b/net80211/ieee80211_node.c
 109 @@ -383,10 +383,16 @@
 110         /* Update country ie information */
 111         ieee80211_build_countryie(ic);
 112
 113 -       if (IEEE80211_IS_CHAN_HALF(chan))
 114 +       if (IEEE80211_IS_CHAN_HALF(chan)) {
 115                 ni->ni_rates = ic->ic_sup_half_rates;
 116 -       else if (IEEE80211_IS_CHAN_QUARTER(chan))
 117 +       } else if (IEEE80211_IS_CHAN_QUARTER(chan)) {
 118                 ni->ni_rates = ic->ic_sup_quarter_rates;
 119 +       }
 120 +
 121 +       if ((vap->iv_flags & IEEE80211_F_PUREG) &&
 122 +               IEEE80211_IS_CHAN_ANYG(chan)) {
 123 +               ieee80211_setpuregbasicrates(&ni->ni_rates);
 124 +       }
 125
 126         (void) ieee80211_sta_join1(PASS_NODE(ni));
 127  }
 128 --- a/net80211/ieee80211_proto.c
 129 +++ b/net80211/ieee80211_proto.c
 130 @@ -595,6 +595,28 @@
 131         { 4, { 2, 4, 11, 22 } },        /* IEEE80211_MODE_TURBO_G (mixed b/g) */
 132  };
 133
 134 +static const struct ieee80211_rateset basicpureg[] = {
 135 +    { 7, {2, 4, 11, 22, 12, 24, 48 } },
 136 +};
 137 +
 138 +/*
 139 + * Mark basic rates for the 11g rate table based on the pureg setting
 140 + */
 141 +void
 142 +ieee80211_setpuregbasicrates(struct ieee80211_rateset *rs)
 143 +{
 144 +       int i, j;
 145 +
 146 +       for (i = 0; i < rs->rs_nrates; i++) {
 147 +               rs->rs_rates[i] &= IEEE80211_RATE_VAL;
 148 +               for (j = 0; j < basicpureg[0].rs_nrates; j++)
 149 +                       if (basicpureg[0].rs_rates[j] == rs->rs_rates[i]) {
 150 +                               rs->rs_rates[i] |= IEEE80211_RATE_BASIC;
 151 +                               break;
 152 +                       }
 153 +       }
 154 +}
 155 +
 156  /*
 157   * Mark the basic rates for the 11g rate table based on the
 158   * specified mode.  For 11b compatibility we mark only 11b
 159 --- a/net80211/ieee80211_var.h
 160 +++ b/net80211/ieee80211_var.h
 161 @@ -708,6 +708,7 @@
 162  void ieee80211_build_sc_ie(struct ieee80211com *);
 163  void ieee80211_dfs_action(struct ieee80211com *);
 164  void ieee80211_expire_channel_excl_restrictions(struct ieee80211com *);
 165 +void ieee80211_setpuregbasicrates(struct ieee80211_rateset *rs);
 166
 167  /*
 168   * Iterate through ic_channels to enumerate all distinct ic_ieee channel numbers.