package/madwifi/patches/121-ibss_hostap.patch

   1 diff -ur madwifi.old/ath/if_ath.c madwifi.dev/ath/if_ath.c
   2 --- madwifi.old/ath/if_ath.c    2007-06-01 12:22:06.641518272 +0200
   3 +++ madwifi.dev/ath/if_ath.c    2007-06-01 12:22:55.326117088 +0200
   4 @@ -1048,9 +1048,12 @@
   5                         ic_opmode = opmode;
   6                 break;
   7         case IEEE80211_M_IBSS:
   8 -               if (sc->sc_nvaps != 0)          /* only one */
   9 -                       return NULL;
  10 -               ic_opmode = opmode;
  11 +               if (sc->sc_nvaps == 0)          /* only one */
  12 +                       ic_opmode = opmode;
  13 +               else
  14 +                       ic_opmode = IEEE80211_M_HOSTAP;
  15 +
  16 +               sc->sc_nibssvaps++;
  17                 break;
  18         case IEEE80211_M_AHDEMO:
  19         case IEEE80211_M_MONITOR:
  20 @@ -1080,7 +1083,7 @@
  21                 return NULL;
  22         }
  23
  24 -       if (sc->sc_nvaps >= ATH_BCBUF) {
  25 +       if (sc->sc_nvaps + sc->sc_nibssvaps >= ATH_BCBUF) {
  26                 printk(KERN_WARNING "too many virtual ap's (already got %d)\n", sc->sc_nvaps);
  27                 return NULL;
  28         }
  29 @@ -1115,8 +1118,9 @@
  30          */
  31         if (opmode == IEEE80211_M_MONITOR)
  32                 dev->type = ARPHRD_IEEE80211_RADIOTAP;
  33 -       if ((flags & IEEE80211_CLONE_BSSID) &&
  34 -           sc->sc_nvaps != 0 && opmode != IEEE80211_M_WDS && sc->sc_hasbmask) {
  35 +       avp->av_bslot = -1;
  36 +       if ((flags & IEEE80211_CLONE_BSSID) && sc->sc_hasbmask &&
  37 +           (opmode == IEEE80211_M_HOSTAP || opmode == IEEE80211_M_IBSS)) {
  38                 struct ieee80211vap *v;
  39                 unsigned int id_mask, id;
  40
  41 @@ -1129,18 +1133,22 @@
  42
  43                 /* do a full search to mark all the allocated VAPs */
  44                 id_mask = 0;
  45 -               TAILQ_FOREACH(v, &ic->ic_vaps, iv_next)
  46 -                       id_mask |= (1 << ATH_GET_VAP_ID(v->iv_myaddr));
  47 +               TAILQ_FOREACH(v, &ic->ic_vaps, iv_next) {
  48 +                       struct ath_vap *a = (struct ath_vap *) v->iv_dev->priv;
  49 +                       if (a->av_bslot >= 0)
  50 +                               id_mask |= (1 << a->av_bslot);
  51 +               }
  52
  53 -               for (id = 0; id < ATH_BCBUF; id++) {
  54 +               /* IBSS mode has local always set, so don't hand out beacon slot 0 to an IBSS vap */
  55 +               for (id = (opmode == IEEE80211_M_IBSS ? 1 : 0); id < ATH_BCBUF; id++) {
  56                         /* get the first available slot */
  57                         if ((id_mask & (1 << id)) == 0) {
  58                                 ATH_SET_VAP_BSSID(vap->iv_myaddr, id);
  59 +                               avp->av_bslot = id;
  60                                 break;
  61                         }
  62                 }
  63         }
  64 -       avp->av_bslot = -1;
  65         STAILQ_INIT(&avp->av_mcastq.axq_q);
  66         ATH_TXQ_LOCK_INIT(&avp->av_mcastq);
  67         if (opmode == IEEE80211_M_HOSTAP || opmode == IEEE80211_M_IBSS) {
  68 @@ -1150,33 +1158,14 @@
  69                  */
  70                 avp->av_bcbuf = STAILQ_FIRST(&sc->sc_bbuf);
  71                 STAILQ_REMOVE_HEAD(&sc->sc_bbuf, bf_list);
  72 -               if (opmode == IEEE80211_M_HOSTAP || !sc->sc_hasveol) {
  73 +               if ((opmode == IEEE80211_M_IBSS) || (opmode == IEEE80211_M_HOSTAP) || !sc->sc_hasveol) {
  74                         unsigned int slot;
  75 -                       /*
  76 -                        * Assign the VAP to a beacon xmit slot.  As
  77 -                        * above, this cannot fail to find one.
  78 -                        */
  79 -                       avp->av_bslot = 0;
  80 -                       for (slot = 0; slot < ATH_BCBUF; slot++)
  81 -                               if (sc->sc_bslot[slot] == NULL) {
  82 -                                       /*
  83 -                                        * XXX hack, space out slots to better
  84 -                                        * deal with misses
  85 -                                        */
  86 -                                       if (slot + 1 < ATH_BCBUF &&
  87 -                                           sc->sc_bslot[slot+1] == NULL) {
  88 -                                               avp->av_bslot = slot + 1;
  89 -                                               break;
  90 -                                       }
  91 -                                       avp->av_bslot = slot;
  92 -                                       /* NB: keep looking for a double slot */
  93 -                               }
  94                         KASSERT(sc->sc_bslot[avp->av_bslot] == NULL,
  95                                 ("beacon slot %u not empty?", avp->av_bslot));
  96                         sc->sc_bslot[avp->av_bslot] = vap;
  97                         sc->sc_nbcnvaps++;
  98                 }
  99 -               if ((opmode == IEEE80211_M_HOSTAP) && (sc->sc_hastsfadd)) {
 100 +               if ((sc->sc_opmode == IEEE80211_M_HOSTAP) && (sc->sc_hastsfadd)) {
 101                         /*
 102                          * Multiple VAPs are to transmit beacons and we
 103                          * have h/w support for TSF adjusting; enable use
 104 @@ -1286,7 +1275,9 @@
 105                         sc->sc_stagbeacons = 0;
 106         }
 107
 108 -       if (vap->iv_opmode == IEEE80211_M_STA) {
 109 +       if (vap->iv_opmode == IEEE80211_M_IBSS) {
 110 +               sc->sc_nibssvaps--;
 111 +       } else if (vap->iv_opmode == IEEE80211_M_STA) {
 112                 sc->sc_nstavaps--;
 113                 sc->sc_nostabeacons = 0;
 114         } else if (vap->iv_opmode == IEEE80211_M_MONITOR)
 115 @@ -3356,7 +3347,8 @@
 116                  HAL_RX_FILTER_MCAST;
 117         if (ic->ic_opmode != IEEE80211_M_STA)
 118                 rfilt |= HAL_RX_FILTER_PROBEREQ;
 119 -       if (ic->ic_opmode != IEEE80211_M_HOSTAP && (dev->flags & IFF_PROMISC))
 120 +       if ((ic->ic_opmode != IEEE80211_M_HOSTAP && (dev->flags & IFF_PROMISC)) ||
 121 +               ((sc->sc_nvaps > 0) && (sc->sc_nibssvaps > 0)))
 122                 rfilt |= HAL_RX_FILTER_PROM;
 123         if (ic->ic_opmode == IEEE80211_M_STA ||
 124             sc->sc_opmode == HAL_M_IBSS ||      /* NB: AHDEMO too */
 125 @@ -5809,12 +5801,19 @@
 126                         type = ieee80211_input(ni, skb, rs->rs_rssi, rs->rs_tstamp);
 127                         ieee80211_unref_node(&ni);
 128                 } else {
 129 +                       const struct ieee80211_frame_min *wh = (const struct ieee80211_frame_min *) skb->data;
 130                         /*
 131                          * No key index or no entry, do a lookup and
 132                          * add the node to the mapping table if possible.
 133                          */
 134 -                       ni = ieee80211_find_rxnode(ic,
 135 -                               (const struct ieee80211_frame_min *) skb->data);
 136 +                       if ((wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) == IEEE80211_FC0_SUBTYPE_PROBE_REQ)
 137 +                               /* if this is a probe request, send it to all vaps
 138 +                                * when looking up nodes, hostap will be preferred over ibss,
 139 +                                * because ibss will catch all nodes */
 140 +                               ni = NULL;
 141 +                       else
 142 +                               ni = ieee80211_find_rxnode(ic, (const struct ieee80211_frame_min *) skb->data);
 143 +
 144                         if (ni != NULL) {
 145                                 struct ath_node *an = ATH_NODE(ni);
 146                                 ieee80211_keyix_t keyix;
 147 diff -ur madwifi.old/ath/if_athvar.h madwifi.dev/ath/if_athvar.h
 148 --- madwifi.old/ath/if_athvar.h 2007-06-01 12:22:06.642518120 +0200
 149 +++ madwifi.dev/ath/if_athvar.h 2007-06-01 12:21:54.640342728 +0200
 150 @@ -199,7 +199,7 @@
 151  #define        ATH_RXBUF       40              /* number of RX buffers */
 152  #define        ATH_TXBUF       200             /* number of TX buffers */
 153
 154 -#define        ATH_BCBUF       4               /* number of beacon buffers */
 155 +#define        ATH_BCBUF       8               /* number of beacon buffers */
 156
 157  /* free buffer threshold to restart net dev */
 158  #define        ATH_TXBUF_FREE_THRESHOLD  (ATH_TXBUF / 20)
 159 @@ -594,6 +594,7 @@
 160         u_int16_t sc_nvaps;                     /* # of active virtual ap's */
 161         u_int8_t sc_nstavaps;                   /* # of active station vaps */
 162         u_int8_t sc_nmonvaps;                   /* # of monitor vaps */
 163 +       u_int8_t sc_nibssvaps;                  /* # of active ibss vaps */
 164         u_int8_t sc_nbcnvaps;                   /* # of vaps sending beacons */
 165         u_int sc_fftxqmin;                      /* aggregation threshold */
 166         HAL_INT sc_imask;                       /* interrupt mask copy */
 167 diff -ur madwifi.old/net80211/ieee80211_beacon.c madwifi.dev/net80211/ieee80211_beacon.c
 168 --- madwifi.old/net80211/ieee80211_beacon.c     2007-06-01 12:22:06.642518120 +0200
 169 +++ madwifi.dev/net80211/ieee80211_beacon.c     2007-06-01 12:21:54.640342728 +0200
 170 @@ -111,7 +111,7 @@
 171         bo->bo_tim = frm;
 172
 173         /* IBSS/TIM */
 174 -       if (vap->iv_opmode == IEEE80211_M_IBSS) {
 175 +       if (ic->ic_opmode == IEEE80211_M_IBSS) {
 176                 *frm++ = IEEE80211_ELEMID_IBSSPARMS;
 177                 *frm++ = 2;
 178                 *frm++ = 0; *frm++ = 0;         /* TODO: ATIM window */
 179 diff -ur madwifi.old/net80211/ieee80211_input.c madwifi.dev/net80211/ieee80211_input.c
 180 --- madwifi.old/net80211/ieee80211_input.c      2007-06-01 12:22:06.645517664 +0200
 181 +++ madwifi.dev/net80211/ieee80211_input.c      2007-06-01 12:21:54.642342424 +0200
 182 @@ -2953,7 +2953,13 @@
 183                         return;
 184                 }
 185                 if (ni == vap->iv_bss) {
 186 -                       if (vap->iv_opmode == IEEE80211_M_IBSS) {
 187 +                       /* this probe request may have been sent to all vaps
 188 +                        * to give each a chance of creating a node for this.
 189 +                        * important for hostap+ibss mode */
 190 +                       ni = ieee80211_find_rxnode(ic, (const struct ieee80211_frame_min *) skb->data);
 191 +                       if (ni) {
 192 +                               allocbs = 0;
 193 +                       } else if (vap->iv_opmode == IEEE80211_M_IBSS) {
 194                                 /*
 195                                  * XXX Cannot tell if the sender is operating
 196                                  * in ibss mode.  But we need a new node to
 197 @@ -2962,12 +2968,13 @@
 198                                  */
 199                                 ni = ieee80211_fakeup_adhoc_node(vap,
 200                                         wh->i_addr2);
 201 +                               allocbs = 1;
 202                         } else {
 203                                 ni = ieee80211_dup_bss(vap, wh->i_addr2, 1);
 204 +                               allocbs = 1;
 205                         }
 206                         if (ni == NULL)
 207                                 return;
 208 -                       allocbs = 1;
 209                 }
 210
 211                 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_INPUT, wh->i_addr2,
 212 diff -ur madwifi.old/net80211/ieee80211_node.c madwifi.dev/net80211/ieee80211_node.c
 213 --- madwifi.old/net80211/ieee80211_node.c       2007-06-01 12:22:06.646517512 +0200
 214 +++ madwifi.dev/net80211/ieee80211_node.c       2007-06-01 12:21:54.644342120 +0200
 215 @@ -1082,8 +1082,25 @@
 216         IEEE80211_NODE_TABLE_LOCK_ASSERT(nt);
 217
 218         hash = IEEE80211_NODE_HASH(macaddr);
 219 +
 220 +       /* look for non-ibss nodes first */
 221         LIST_FOREACH(ni, &nt->nt_hash[hash], ni_hash) {
 222 -               if (IEEE80211_ADDR_EQ(ni->ni_macaddr, macaddr)) {
 223 +               if (IEEE80211_ADDR_EQ(ni->ni_macaddr, macaddr) && ni->ni_vap->iv_opmode != IEEE80211_M_IBSS) {
 224 +                       ieee80211_ref_node(ni); /* mark referenced */
 225 +#ifdef IEEE80211_DEBUG_REFCNT
 226 +                       IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_NODE,
 227 +                               "%s (%s:%u) %p<%s> refcnt %d\n", __func__,
 228 +                               func, line,
 229 +                               ni, ether_sprintf(ni->ni_macaddr),
 230 +                               ieee80211_node_refcnt(ni));
 231 +#endif
 232 +                       return ni;
 233 +               }
 234 +       }
 235 +
 236 +       /* now look for ibss nodes */
 237 +       LIST_FOREACH(ni, &nt->nt_hash[hash], ni_hash) {
 238 +               if (IEEE80211_ADDR_EQ(ni->ni_macaddr, macaddr) && ni->ni_vap->iv_opmode == IEEE80211_M_IBSS) {
 239                         ieee80211_ref_node(ni); /* mark referenced */
 240  #ifdef IEEE80211_DEBUG_REFCNT
 241                         IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_NODE,