package/madwifi/patches/121-ibss_hostap.patch

   1 Index: madwifi-ng-r2756-20071018/ath/if_ath.c
   2 ===================================================================
   3 --- madwifi-ng-r2756-20071018.orig/ath/if_ath.c 2007-10-24 06:20:18.881765287 +0200
   4 +++ madwifi-ng-r2756-20071018/ath/if_ath.c      2007-10-24 06:20:19.097777599 +0200
   5 @@ -409,7 +409,6 @@
   6   * and use the next two bits as the index of the VAP.
   7   */
   8  #define ATH_SET_VAP_BSSID_MASK(bssid_mask)      ((bssid_mask)[0] &= ~(((ATH_BCBUF-1)<<2)|0x02))
   9 -#define ATH_GET_VAP_ID(bssid)                   ((bssid)[0] >> 2)
  10  #define ATH_SET_VAP_BSSID(bssid, id) \
  11                 do { \
  12                         if (id) \
  13 @@ -1059,9 +1058,12 @@
  14                         ic_opmode = opmode;
  15                 break;
  16         case IEEE80211_M_IBSS:
  17 -               if (sc->sc_nvaps != 0)          /* only one */
  18 -                       return NULL;
  19 -               ic_opmode = opmode;
  20 +               if (sc->sc_nvaps == 0)          /* only one */
  21 +                       ic_opmode = opmode;
  22 +               else
  23 +                       ic_opmode = IEEE80211_M_HOSTAP;
  24 +
  25 +               sc->sc_nibssvaps++;
  26                 break;
  27         case IEEE80211_M_AHDEMO:
  28         case IEEE80211_M_MONITOR:
  29 @@ -1091,7 +1093,7 @@
  30                 return NULL;
  31         }
  32
  33 -       if (sc->sc_nvaps >= ATH_BCBUF) {
  34 +       if (sc->sc_nvaps + sc->sc_nibssvaps >= ATH_BCBUF) {
  35                 printk(KERN_WARNING "too many virtual APs (already got %d)\n", sc->sc_nvaps);
  36                 return NULL;
  37         }
  38 @@ -1127,6 +1129,7 @@
  39         if (opmode == IEEE80211_M_MONITOR)
  40                 dev->type = ARPHRD_IEEE80211_RADIOTAP;
  41
  42 +       avp->av_bslot = -1;
  43         if ((flags & IEEE80211_CLONE_BSSID) &&
  44             opmode != IEEE80211_M_WDS && sc->sc_hasbmask) {
  45                 struct ieee80211vap *v;
  46 @@ -1141,18 +1144,22 @@
  47
  48                 /* do a full search to mark all the allocated VAPs */
  49                 id_mask = 0;
  50 -               TAILQ_FOREACH(v, &ic->ic_vaps, iv_next)
  51 -                       id_mask |= (1 << ATH_GET_VAP_ID(v->iv_myaddr));
  52 +               TAILQ_FOREACH(v, &ic->ic_vaps, iv_next) {
  53 +                       struct ath_vap *a = (struct ath_vap *) v->iv_dev->priv;
  54 +                       if (a->av_bslot >= 0)
  55 +                               id_mask |= (1 << a->av_bslot);
  56 +               }
  57
  58 -               for (id = 1; id < ATH_BCBUF; id++) {
  59 +               /* IBSS mode has local always set, so don't hand out beacon slot 0 to an IBSS vap */
  60 +               for (id = (opmode == IEEE80211_M_IBSS ? 1 : 0); id < ATH_BCBUF; id++) {
  61                         /* get the first available slot */
  62                         if ((id_mask & (1 << id)) == 0) {
  63                                 ATH_SET_VAP_BSSID(vap->iv_myaddr, id);
  64 +                               avp->av_bslot = id;
  65                                 break;
  66                         }
  67                 }
  68         }
  69 -       avp->av_bslot = -1;
  70         STAILQ_INIT(&avp->av_mcastq.axq_q);
  71         ATH_TXQ_LOCK_INIT(&avp->av_mcastq);
  72         if (opmode == IEEE80211_M_HOSTAP || opmode == IEEE80211_M_IBSS) {
  73 @@ -1162,33 +1169,14 @@
  74                  */
  75                 avp->av_bcbuf = STAILQ_FIRST(&sc->sc_bbuf);
  76                 STAILQ_REMOVE_HEAD(&sc->sc_bbuf, bf_list);
  77 -               if (opmode == IEEE80211_M_HOSTAP || !sc->sc_hasveol) {
  78 +               if ((opmode == IEEE80211_M_IBSS) || (opmode == IEEE80211_M_HOSTAP) || !sc->sc_hasveol) {
  79                         unsigned int slot;
  80 -                       /*
  81 -                        * Assign the VAP to a beacon xmit slot.  As
  82 -                        * above, this cannot fail to find one.
  83 -                        */
  84 -                       avp->av_bslot = 0;
  85 -                       for (slot = 0; slot < ATH_BCBUF; slot++)
  86 -                               if (sc->sc_bslot[slot] == NULL) {
  87 -                                       /*
  88 -                                        * XXX hack, space out slots to better
  89 -                                        * deal with misses
  90 -                                        */
  91 -                                       if (slot + 1 < ATH_BCBUF &&
  92 -                                           sc->sc_bslot[slot+1] == NULL) {
  93 -                                               avp->av_bslot = slot + 1;
  94 -                                               break;
  95 -                                       }
  96 -                                       avp->av_bslot = slot;
  97 -                                       /* NB: keep looking for a double slot */
  98 -                               }
  99                         KASSERT(sc->sc_bslot[avp->av_bslot] == NULL,
 100                                 ("beacon slot %u not empty?", avp->av_bslot));
 101                         sc->sc_bslot[avp->av_bslot] = vap;
 102                         sc->sc_nbcnvaps++;
 103                 }
 104 -               if ((opmode == IEEE80211_M_HOSTAP) && (sc->sc_hastsfadd)) {
 105 +               if ((sc->sc_opmode == IEEE80211_M_HOSTAP) && (sc->sc_hastsfadd)) {
 106                         /*
 107                          * Multiple VAPs are to transmit beacons and we
 108                          * have h/w support for TSF adjusting; enable use
 109 @@ -1298,7 +1286,9 @@
 110                         sc->sc_stagbeacons = 0;
 111         }
 112
 113 -       if (vap->iv_opmode == IEEE80211_M_STA) {
 114 +       if (vap->iv_opmode == IEEE80211_M_IBSS) {
 115 +               sc->sc_nibssvaps--;
 116 +       } else if (vap->iv_opmode == IEEE80211_M_STA) {
 117                 sc->sc_nstavaps--;
 118                 sc->sc_nostabeacons = 0;
 119         } else if (vap->iv_opmode == IEEE80211_M_MONITOR)
 120 @@ -3517,7 +3507,7 @@
 121             sc->sc_opmode == HAL_M_IBSS ||      /* NB: AHDEMO too */
 122             (sc->sc_nostabeacons) || sc->sc_scanning)
 123                 rfilt |= HAL_RX_FILTER_BEACON;
 124 -       if (sc->sc_nmonvaps > 0)
 125 +       if ((sc->sc_nmonvaps > 0) || ((sc->sc_nvaps > 0) && (sc->sc_nibssvaps > 0)))
 126                 rfilt |= (HAL_RX_FILTER_CONTROL | HAL_RX_FILTER_BEACON |
 127                           HAL_RX_FILTER_PROBEREQ | HAL_RX_FILTER_PROM);
 128         return rfilt;
 129 @@ -5953,12 +5943,20 @@
 130                         type = ieee80211_input(ni, skb, rs->rs_rssi, rs_tsf);
 131                         ieee80211_unref_node(&ni);
 132                 } else {
 133 +                       const struct ieee80211_frame_min *wh = (const struct ieee80211_frame_min *) skb->data;
 134                         /*
 135                          * No key index or no entry, do a lookup and
 136                          * add the node to the mapping table if possible.
 137                          */
 138 -                       ni = ieee80211_find_rxnode(ic,
 139 -                               (const struct ieee80211_frame_min *) skb->data);
 140 +                       if (((wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) == IEEE80211_FC0_SUBTYPE_PROBE_REQ) &&
 141 +                                       (sc->sc_nibssvaps > 0))
 142 +                               /* if this is a probe request, send it to all vaps
 143 +                                * when looking up nodes, hostap will be preferred over ibss,
 144 +                                * because ibss will catch all nodes */
 145 +                               ni = NULL;
 146 +                       else
 147 +                               ni = ieee80211_find_rxnode(ic, (const struct ieee80211_frame_min *) skb->data);
 148 +
 149                         if (ni != NULL) {
 150                                 struct ath_node *an = ATH_NODE(ni);
 151                                 ieee80211_keyix_t keyix;
 152 Index: madwifi-ng-r2756-20071018/ath/if_athvar.h
 153 ===================================================================
 154 --- madwifi-ng-r2756-20071018.orig/ath/if_athvar.h      2007-10-24 06:20:16.501629651 +0200
 155 +++ madwifi-ng-r2756-20071018/ath/if_athvar.h   2007-10-24 06:20:19.101777824 +0200
 156 @@ -209,7 +209,7 @@
 157  #define        ATH_RXBUF       40              /* number of RX buffers */
 158  #define        ATH_TXBUF       200             /* number of TX buffers */
 159
 160 -#define        ATH_BCBUF       4               /* number of beacon buffers */
 161 +#define        ATH_BCBUF       8               /* number of beacon buffers */
 162
 163  /* free buffer threshold to restart net dev */
 164  #define        ATH_TXBUF_FREE_THRESHOLD  (ATH_TXBUF / 20)
 165 @@ -610,6 +610,7 @@
 166         u_int16_t sc_nvaps;                     /* # of active virtual APs */
 167         u_int8_t sc_nstavaps;                   /* # of active station VAPs */
 168         u_int8_t sc_nmonvaps;                   /* # of monitor VAPs */
 169 +       u_int8_t sc_nibssvaps;                  /* # of active ibss vaps */
 170         u_int8_t sc_nbcnvaps;                   /* # of vaps sending beacons */
 171         u_int sc_fftxqmin;                      /* aggregation threshold */
 172         HAL_INT sc_imask;                       /* interrupt mask copy */
 173 Index: madwifi-ng-r2756-20071018/net80211/ieee80211_beacon.c
 174 ===================================================================
 175 --- madwifi-ng-r2756-20071018.orig/net80211/ieee80211_beacon.c  2007-10-24 06:20:16.505629880 +0200
 176 +++ madwifi-ng-r2756-20071018/net80211/ieee80211_beacon.c       2007-10-24 06:20:19.109778282 +0200
 177 @@ -111,7 +111,7 @@
 178         bo->bo_tim = frm;
 179
 180         /* IBSS/TIM */
 181 -       if (vap->iv_opmode == IEEE80211_M_IBSS) {
 182 +       if (ic->ic_opmode == IEEE80211_M_IBSS) {
 183                 *frm++ = IEEE80211_ELEMID_IBSSPARMS;
 184                 *frm++ = 2;
 185                 *frm++ = 0; *frm++ = 0;         /* TODO: ATIM window */
 186 Index: madwifi-ng-r2756-20071018/net80211/ieee80211_input.c
 187 ===================================================================
 188 --- madwifi-ng-r2756-20071018.orig/net80211/ieee80211_input.c   2007-10-24 06:20:16.513630337 +0200
 189 +++ madwifi-ng-r2756-20071018/net80211/ieee80211_input.c        2007-10-24 06:20:19.113778513 +0200
 190 @@ -2990,7 +2990,13 @@
 191                         return;
 192                 }
 193                 if (ni == vap->iv_bss) {
 194 -                       if (vap->iv_opmode == IEEE80211_M_IBSS) {
 195 +                       /* this probe request may have been sent to all vaps
 196 +                        * to give each a chance of creating a node for this.
 197 +                        * important for hostap+ibss mode */
 198 +                       ni = ieee80211_find_rxnode(ic, (const struct ieee80211_frame_min *) skb->data);
 199 +                       if (ni) {
 200 +                               allocbs = 0;
 201 +                       } else if (vap->iv_opmode == IEEE80211_M_IBSS) {
 202                                 /*
 203                                  * XXX Cannot tell if the sender is operating
 204                                  * in ibss mode.  But we need a new node to
 205 @@ -2999,12 +3005,13 @@
 206                                  */
 207                                 ni = ieee80211_fakeup_adhoc_node(vap,
 208                                         wh->i_addr2);
 209 +                               allocbs = 1;
 210                         } else {
 211                                 ni = ieee80211_dup_bss(vap, wh->i_addr2, 1);
 212 +                               allocbs = 1;
 213                         }
 214                         if (ni == NULL)
 215                                 return;
 216 -                       allocbs = 1;
 217                 }
 218
 219                 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_INPUT, wh->i_addr2,
 220 Index: madwifi-ng-r2756-20071018/net80211/ieee80211_node.c
 221 ===================================================================
 222 --- madwifi-ng-r2756-20071018.orig/net80211/ieee80211_node.c    2007-10-24 06:20:18.437739986 +0200
 223 +++ madwifi-ng-r2756-20071018/net80211/ieee80211_node.c 2007-10-24 06:20:19.113778513 +0200
 224 @@ -1084,8 +1084,25 @@
 225         IEEE80211_NODE_TABLE_LOCK_ASSERT(nt);
 226
 227         hash = IEEE80211_NODE_HASH(macaddr);
 228 +
 229 +       /* look for non-ibss nodes first */
 230 +       LIST_FOREACH(ni, &nt->nt_hash[hash], ni_hash) {
 231 +               if (IEEE80211_ADDR_EQ(ni->ni_macaddr, macaddr) && ni->ni_vap->iv_opmode != IEEE80211_M_IBSS) {
 232 +                       ieee80211_ref_node(ni); /* mark referenced */
 233 +#ifdef IEEE80211_DEBUG_REFCNT
 234 +                       IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_NODE,
 235 +                               "%s (%s:%u) %p<%s> refcnt %d\n", __func__,
 236 +                               func, line,
 237 +                               ni, ether_sprintf(ni->ni_macaddr),
 238 +                               ieee80211_node_refcnt(ni));
 239 +#endif
 240 +                       return ni;
 241 +               }
 242 +       }
 243 +
 244 +       /* now look for ibss nodes */
 245         LIST_FOREACH(ni, &nt->nt_hash[hash], ni_hash) {
 246 -               if (IEEE80211_ADDR_EQ(ni->ni_macaddr, macaddr)) {
 247 +               if (IEEE80211_ADDR_EQ(ni->ni_macaddr, macaddr) && ni->ni_vap->iv_opmode == IEEE80211_M_IBSS) {
 248                         ieee80211_ref_node(ni); /* mark referenced */
 249  #ifdef IEEE80211_DEBUG_REFCNT
 250                         IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_NODE,