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 @@ -407,7 +407,6 @@
   5   * and use the next two bits as the index of the VAP.
   6   */
   7  #define ATH_SET_VAP_BSSID_MASK(bssid_mask)      ((bssid_mask)[0] &= ~(((ATH_BCBUF-1)<<2)|0x02))
   8 -#define ATH_GET_VAP_ID(bssid)                   ((bssid)[0] >> 2)
   9  #define ATH_SET_VAP_BSSID(bssid, id) \
  10                 do { \
  11                         if (id) \
  12 @@ -1048,9 +1048,12 @@
  13                         ic_opmode = opmode;
  14                 break;
  15         case IEEE80211_M_IBSS:
  16 -               if (sc->sc_nvaps != 0)          /* only one */
  17 -                       return NULL;
  18 -               ic_opmode = opmode;
  19 +               if (sc->sc_nvaps == 0)          /* only one */
  20 +                       ic_opmode = opmode;
  21 +               else
  22 +                       ic_opmode = IEEE80211_M_HOSTAP;
  23 +
  24 +               sc->sc_nibssvaps++;
  25                 break;
  26         case IEEE80211_M_AHDEMO:
  27         case IEEE80211_M_MONITOR:
  28 @@ -1080,7 +1083,7 @@
  29                 return NULL;
  30         }
  31
  32 -       if (sc->sc_nvaps >= ATH_BCBUF) {
  33 +       if (sc->sc_nvaps + sc->sc_nibssvaps >= ATH_BCBUF) {
  34                 printk(KERN_WARNING "too many virtual ap's (already got %d)\n", sc->sc_nvaps);
  35                 return NULL;
  36         }
  37 @@ -1115,8 +1118,9 @@
  38          */
  39         if (opmode == IEEE80211_M_MONITOR)
  40                 dev->type = ARPHRD_IEEE80211_RADIOTAP;
  41 -       if ((flags & IEEE80211_CLONE_BSSID) &&
  42 -           sc->sc_nvaps != 0 && opmode != IEEE80211_M_WDS && sc->sc_hasbmask) {
  43 +       avp->av_bslot = -1;
  44 +       if ((flags & IEEE80211_CLONE_BSSID) && sc->sc_hasbmask &&
  45 +           (opmode == IEEE80211_M_HOSTAP || opmode == IEEE80211_M_IBSS)) {
  46                 struct ieee80211vap *v;
  47                 unsigned int id_mask, id;
  48
  49 @@ -1129,18 +1133,22 @@
  50
  51                 /* do a full search to mark all the allocated VAPs */
  52                 id_mask = 0;
  53 -               TAILQ_FOREACH(v, &ic->ic_vaps, iv_next)
  54 -                       id_mask |= (1 << ATH_GET_VAP_ID(v->iv_myaddr));
  55 +               TAILQ_FOREACH(v, &ic->ic_vaps, iv_next) {
  56 +                       struct ath_vap *a = (struct ath_vap *) v->iv_dev->priv;
  57 +                       if (a->av_bslot >= 0)
  58 +                               id_mask |= (1 << a->av_bslot);
  59 +               }
  60
  61 -               for (id = 0; id < ATH_BCBUF; id++) {
  62 +               /* IBSS mode has local always set, so don't hand out beacon slot 0 to an IBSS vap */
  63 +               for (id = (opmode == IEEE80211_M_IBSS ? 1 : 0); id < ATH_BCBUF; id++) {
  64                         /* get the first available slot */
  65                         if ((id_mask & (1 << id)) == 0) {
  66                                 ATH_SET_VAP_BSSID(vap->iv_myaddr, id);
  67 +                               avp->av_bslot = id;
  68                                 break;
  69                         }
  70                 }
  71         }
  72 -       avp->av_bslot = -1;
  73         STAILQ_INIT(&avp->av_mcastq.axq_q);
  74         ATH_TXQ_LOCK_INIT(&avp->av_mcastq);
  75         if (opmode == IEEE80211_M_HOSTAP || opmode == IEEE80211_M_IBSS) {
  76 @@ -1150,33 +1158,14 @@
  77                  */
  78                 avp->av_bcbuf = STAILQ_FIRST(&sc->sc_bbuf);
  79                 STAILQ_REMOVE_HEAD(&sc->sc_bbuf, bf_list);
  80 -               if (opmode == IEEE80211_M_HOSTAP || !sc->sc_hasveol) {
  81 +               if ((opmode == IEEE80211_M_IBSS) || (opmode == IEEE80211_M_HOSTAP) || !sc->sc_hasveol) {
  82                         unsigned int slot;
  83 -                       /*
  84 -                        * Assign the VAP to a beacon xmit slot.  As
  85 -                        * above, this cannot fail to find one.
  86 -                        */
  87 -                       avp->av_bslot = 0;
  88 -                       for (slot = 0; slot < ATH_BCBUF; slot++)
  89 -                               if (sc->sc_bslot[slot] == NULL) {
  90 -                                       /*
  91 -                                        * XXX hack, space out slots to better
  92 -                                        * deal with misses
  93 -                                        */
  94 -                                       if (slot + 1 < ATH_BCBUF &&
  95 -                                           sc->sc_bslot[slot+1] == NULL) {
  96 -                                               avp->av_bslot = slot + 1;
  97 -                                               break;
  98 -                                       }
  99 -                                       avp->av_bslot = slot;
 100 -                                       /* NB: keep looking for a double slot */
 101 -                               }
 102                         KASSERT(sc->sc_bslot[avp->av_bslot] == NULL,
 103                                 ("beacon slot %u not empty?", avp->av_bslot));
 104                         sc->sc_bslot[avp->av_bslot] = vap;
 105                         sc->sc_nbcnvaps++;
 106                 }
 107 -               if ((opmode == IEEE80211_M_HOSTAP) && (sc->sc_hastsfadd)) {
 108 +               if ((sc->sc_opmode == IEEE80211_M_HOSTAP) && (sc->sc_hastsfadd)) {
 109                         /*
 110                          * Multiple VAPs are to transmit beacons and we
 111                          * have h/w support for TSF adjusting; enable use
 112 @@ -1286,7 +1275,9 @@
 113                         sc->sc_stagbeacons = 0;
 114         }
 115
 116 -       if (vap->iv_opmode == IEEE80211_M_STA) {
 117 +       if (vap->iv_opmode == IEEE80211_M_IBSS) {
 118 +               sc->sc_nibssvaps--;
 119 +       } else if (vap->iv_opmode == IEEE80211_M_STA) {
 120                 sc->sc_nstavaps--;
 121                 sc->sc_nostabeacons = 0;
 122         } else if (vap->iv_opmode == IEEE80211_M_MONITOR)
 123 @@ -3368,7 +3367,7 @@
 124                 ((ic->ic_opmode == IEEE80211_M_HOSTAP) &&
 125                  (ic->ic_protmode != IEEE80211_PROT_NONE)))
 126                 rfilt |= HAL_RX_FILTER_BEACON;
 127 -       if (sc->sc_nmonvaps > 0)
 128 +       if ((sc->sc_nmonvaps > 0) || ((sc->sc_nvaps > 0) && (sc->sc_nibssvaps > 0)))
 129                 rfilt |= (HAL_RX_FILTER_CONTROL | HAL_RX_FILTER_BEACON |
 130                           HAL_RX_FILTER_PROBEREQ | HAL_RX_FILTER_PROM);
 131         return rfilt;
 132 @@ -5809,12 +5801,20 @@
 133                         type = ieee80211_input(ni, skb, rs->rs_rssi, rs->rs_tstamp);
 134                         ieee80211_unref_node(&ni);
 135                 } else {
 136 +                       const struct ieee80211_frame_min *wh = (const struct ieee80211_frame_min *) skb->data;
 137                         /*
 138                          * No key index or no entry, do a lookup and
 139                          * add the node to the mapping table if possible.
 140                          */
 141 -                       ni = ieee80211_find_rxnode(ic,
 142 -                               (const struct ieee80211_frame_min *) skb->data);
 143 +                       if (((wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) == IEEE80211_FC0_SUBTYPE_PROBE_REQ) &&
 144 +                                       (sc->sc_nibssvaps > 0))
 145 +                               /* if this is a probe request, send it to all vaps
 146 +                                * when looking up nodes, hostap will be preferred over ibss,
 147 +                                * because ibss will catch all nodes */
 148 +                               ni = NULL;
 149 +                       else
 150 +                               ni = ieee80211_find_rxnode(ic, (const struct ieee80211_frame_min *) skb->data);
 151 +
 152                         if (ni != NULL) {
 153                                 struct ath_node *an = ATH_NODE(ni);
 154                                 ieee80211_keyix_t keyix;
 155 diff -ur madwifi.old/ath/if_athvar.h madwifi.dev/ath/if_athvar.h
 156 --- madwifi.old/ath/if_athvar.h 2007-06-01 12:22:06.642518120 +0200
 157 +++ madwifi.dev/ath/if_athvar.h 2007-06-01 12:21:54.640342728 +0200
 158 @@ -199,7 +199,7 @@
 159  #define        ATH_RXBUF       40              /* number of RX buffers */
 160  #define        ATH_TXBUF       200             /* number of TX buffers */
 161
 162 -#define        ATH_BCBUF       4               /* number of beacon buffers */
 163 +#define        ATH_BCBUF       8               /* number of beacon buffers */
 164
 165  /* free buffer threshold to restart net dev */
 166  #define        ATH_TXBUF_FREE_THRESHOLD  (ATH_TXBUF / 20)
 167 @@ -594,6 +594,7 @@
 168         u_int16_t sc_nvaps;                     /* # of active virtual ap's */
 169         u_int8_t sc_nstavaps;                   /* # of active station vaps */
 170         u_int8_t sc_nmonvaps;                   /* # of monitor vaps */
 171 +       u_int8_t sc_nibssvaps;                  /* # of active ibss vaps */
 172         u_int8_t sc_nbcnvaps;                   /* # of vaps sending beacons */
 173         u_int sc_fftxqmin;                      /* aggregation threshold */
 174         HAL_INT sc_imask;                       /* interrupt mask copy */
 175 diff -ur madwifi.old/net80211/ieee80211_beacon.c madwifi.dev/net80211/ieee80211_beacon.c
 176 --- madwifi.old/net80211/ieee80211_beacon.c     2007-06-01 12:22:06.642518120 +0200
 177 +++ madwifi.dev/net80211/ieee80211_beacon.c     2007-06-01 12:21:54.640342728 +0200
 178 @@ -111,7 +111,7 @@
 179         bo->bo_tim = frm;
 180
 181         /* IBSS/TIM */
 182 -       if (vap->iv_opmode == IEEE80211_M_IBSS) {
 183 +       if (ic->ic_opmode == IEEE80211_M_IBSS) {
 184                 *frm++ = IEEE80211_ELEMID_IBSSPARMS;
 185                 *frm++ = 2;
 186                 *frm++ = 0; *frm++ = 0;         /* TODO: ATIM window */
 187 diff -ur madwifi.old/net80211/ieee80211_input.c madwifi.dev/net80211/ieee80211_input.c
 188 --- madwifi.old/net80211/ieee80211_input.c      2007-06-01 12:22:06.645517664 +0200
 189 +++ madwifi.dev/net80211/ieee80211_input.c      2007-06-01 12:21:54.642342424 +0200
 190 @@ -2953,7 +2953,13 @@
 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 @@ -2962,12 +2968,13 @@
 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 diff -ur madwifi.old/net80211/ieee80211_node.c madwifi.dev/net80211/ieee80211_node.c
 221 --- madwifi.old/net80211/ieee80211_node.c       2007-06-01 12:22:06.646517512 +0200
 222 +++ madwifi.dev/net80211/ieee80211_node.c       2007-06-01 12:21:54.644342120 +0200
 223 @@ -1082,8 +1082,25 @@
 224         IEEE80211_NODE_TABLE_LOCK_ASSERT(nt);
 225
 226         hash = IEEE80211_NODE_HASH(macaddr);
 227 +
 228 +       /* look for non-ibss nodes first */
 229         LIST_FOREACH(ni, &nt->nt_hash[hash], ni_hash) {
 230 -               if (IEEE80211_ADDR_EQ(ni->ni_macaddr, macaddr)) {
 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) && ni->ni_vap->iv_opmode == IEEE80211_M_IBSS) {
 247                         ieee80211_ref_node(ni); /* mark referenced */
 248  #ifdef IEEE80211_DEBUG_REFCNT
 249                         IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_NODE,