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openwrt/package/madwifi/patches/121-ibss_hostap.patch

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Index: madwifi-ng-r2978-20071127/ath/if_ath.c
===================================================================
--- madwifi-ng-r2978-20071127.orig/ath/if_ath.c 2007-11-27 21:18:24.910671912 +0100
+++ madwifi-ng-r2978-20071127/ath/if_ath.c 2007-11-27 21:21:37.137626301 +0100
@@ -515,7 +515,6 @@
*/
#define ATH_SET_VAP_BSSID_MASK(bssid_mask) \
((bssid_mask)[0] &= ~(((ATH_BCBUF-1) << 2) | 0x02))
-#define ATH_GET_VAP_ID(bssid) ((bssid)[0] >> 2)
#define ATH_SET_VAP_BSSID(bssid, id) \
do { \
if (id) \
@@ -1203,7 +1202,11 @@
case IEEE80211_M_IBSS:
if ((sc->sc_nvaps != 0) && (ic->ic_opmode == IEEE80211_M_STA))
return NULL;
- ic_opmode = opmode;
+ else if (sc->sc_nvaps == 0)
+ ic_opmode = opmode;
+ else
+ ic_opmode = IEEE80211_M_HOSTAP;
+ sc->sc_nibssvaps++;
break;
case IEEE80211_M_AHDEMO:
case IEEE80211_M_MONITOR:
@@ -1233,7 +1236,7 @@
return NULL;
}
- if (sc->sc_nvaps >= ATH_BCBUF) {
+ if (sc->sc_nvaps + sc->sc_nibssvaps >= ATH_BCBUF) {
printk(KERN_WARNING "too many virtual APs (already got %d)\n",
sc->sc_nvaps);
return NULL;
@@ -1288,6 +1291,7 @@
/* Use RadioTAP interface type for monitor mode. */
dev->type = ARPHRD_IEEE80211_RADIOTAP;
+ avp->av_bslot = -1;
if ((flags & IEEE80211_CLONE_BSSID) && sc->sc_hasbmask) {
struct ieee80211vap *v;
unsigned int id_mask, id;
@@ -1301,18 +1305,22 @@
/* do a full search to mark all the allocated VAPs */
id_mask = 0;
- TAILQ_FOREACH(v, &ic->ic_vaps, iv_next)
- id_mask |= (1 << ATH_GET_VAP_ID(v->iv_myaddr));
+ TAILQ_FOREACH(v, &ic->ic_vaps, iv_next) {
+ struct ath_vap *a = (struct ath_vap *) v->iv_dev->priv;
+ if (a->av_bslot >= 0)
+ id_mask |= (1 << a->av_bslot);
+ }
- for (id = 1; id < ATH_BCBUF; id++) {
+ /* IBSS mode has local always set, so don't hand out beacon slot 0 to an IBSS vap */
+ for (id = (opmode == IEEE80211_M_IBSS ? 1 : 0); id < ATH_BCBUF; id++) {
/* get the first available slot */
if ((id_mask & (1 << id)) == 0) {
ATH_SET_VAP_BSSID(vap->iv_myaddr, id);
+ avp->av_bslot = id;
break;
}
}
}
- avp->av_bslot = -1;
STAILQ_INIT(&avp->av_mcastq.axq_q);
ATH_TXQ_LOCK_INIT(&avp->av_mcastq);
if (opmode == IEEE80211_M_HOSTAP || opmode == IEEE80211_M_IBSS) {
@@ -1322,33 +1330,14 @@
*/
avp->av_bcbuf = STAILQ_FIRST(&sc->sc_bbuf);
STAILQ_REMOVE_HEAD(&sc->sc_bbuf, bf_list);
- if (opmode == IEEE80211_M_HOSTAP || !sc->sc_hasveol) {
+ if ((opmode == IEEE80211_M_IBSS) || (opmode == IEEE80211_M_HOSTAP) || !sc->sc_hasveol) {
unsigned int slot;
- /*
- * Assign the VAP to a beacon xmit slot. As
- * above, this cannot fail to find one.
- */
- avp->av_bslot = 0;
- for (slot = 0; slot < ATH_BCBUF; slot++)
- if (sc->sc_bslot[slot] == NULL) {
- /*
- * XXX hack, space out slots to better
- * deal with misses
- */
- if (slot + 1 < ATH_BCBUF &&
- sc->sc_bslot[slot+1] == NULL) {
- avp->av_bslot = slot + 1;
- break;
- }
- avp->av_bslot = slot;
- /* NB: keep looking for a double slot */
- }
KASSERT(sc->sc_bslot[avp->av_bslot] == NULL,
("beacon slot %u not empty?", avp->av_bslot));
sc->sc_bslot[avp->av_bslot] = vap;
sc->sc_nbcnvaps++;
}
- if ((opmode == IEEE80211_M_HOSTAP) && (sc->sc_hastsfadd)) {
+ if ((sc->sc_opmode == IEEE80211_M_HOSTAP) && (sc->sc_hastsfadd)) {
/*
* Multiple VAPs are to transmit beacons and we
* have h/w support for TSF adjusting; enable use
@@ -1460,7 +1449,9 @@
sc->sc_stagbeacons = 0;
}
- if (vap->iv_opmode == IEEE80211_M_STA) {
+ if (vap->iv_opmode == IEEE80211_M_IBSS) {
+ sc->sc_nibssvaps--;
+ } else if (vap->iv_opmode == IEEE80211_M_STA) {
sc->sc_nstavaps--;
sc->sc_nostabeacons = 0;
} else if (vap->iv_opmode == IEEE80211_M_MONITOR)
@@ -3816,7 +3807,7 @@
sc->sc_opmode == HAL_M_IBSS || /* NB: AHDEMO too */
(sc->sc_nostabeacons) || sc->sc_scanning)
rfilt |= HAL_RX_FILTER_BEACON;
- if (sc->sc_nmonvaps > 0)
+ if ((sc->sc_nmonvaps > 0) || ((sc->sc_nvaps > 0) && (sc->sc_nibssvaps > 0)))
rfilt |= (HAL_RX_FILTER_CONTROL | HAL_RX_FILTER_BEACON |
HAL_RX_FILTER_PROBEREQ | HAL_RX_FILTER_PROM);
return rfilt;
@@ -6284,12 +6275,20 @@
type = ieee80211_input(ni, skb, rs->rs_rssi, bf->bf_tsf);
ieee80211_unref_node(&ni);
} else {
+ const struct ieee80211_frame_min *wh = (const struct ieee80211_frame_min *) skb->data;
/*
* No key index or no entry, do a lookup and
* add the node to the mapping table if possible.
*/
- ni = ieee80211_find_rxnode(ic,
- (const struct ieee80211_frame_min *) skb->data);
+ if (((wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) == IEEE80211_FC0_SUBTYPE_PROBE_REQ) &&
+ (sc->sc_nibssvaps > 0))
+ /* if this is a probe request, send it to all vaps
+ * when looking up nodes, hostap will be preferred over ibss,
+ * because ibss will catch all nodes */
+ ni = NULL;
+ else
+ ni = ieee80211_find_rxnode(ic, (const struct ieee80211_frame_min *) skb->data);
+
if (ni != NULL) {
struct ath_node *an = ATH_NODE(ni);
ieee80211_keyix_t keyix;
Index: madwifi-ng-r2978-20071127/ath/if_athvar.h
===================================================================
--- madwifi-ng-r2978-20071127.orig/ath/if_athvar.h 2007-11-27 21:18:08.257722921 +0100
+++ madwifi-ng-r2978-20071127/ath/if_athvar.h 2007-11-27 21:18:30.026963473 +0100
@@ -209,7 +209,7 @@
#define ATH_RXBUF 40 /* number of RX buffers */
#define ATH_TXBUF 200 /* number of TX buffers */
-#define ATH_BCBUF 4 /* number of beacon buffers */
+#define ATH_BCBUF 8 /* number of beacon buffers */
/* free buffer threshold to restart net dev */
#define ATH_TXBUF_FREE_THRESHOLD (ATH_TXBUF / 20)
@@ -667,6 +667,7 @@
u_int16_t sc_nvaps; /* # of active virtual APs */
u_int8_t sc_nstavaps; /* # of active station VAPs */
u_int8_t sc_nmonvaps; /* # of monitor VAPs */
+ u_int8_t sc_nibssvaps; /* # of active ibss vaps */
u_int8_t sc_nbcnvaps; /* # of vaps sending beacons */
u_int sc_fftxqmin; /* aggregation threshold */
HAL_INT sc_imask; /* interrupt mask copy */
Index: madwifi-ng-r2978-20071127/net80211/ieee80211_beacon.c
===================================================================
--- madwifi-ng-r2978-20071127.orig/net80211/ieee80211_beacon.c 2007-11-27 21:18:08.265723374 +0100
+++ madwifi-ng-r2978-20071127/net80211/ieee80211_beacon.c 2007-11-27 21:18:30.034963929 +0100
@@ -111,7 +111,7 @@
bo->bo_tim = frm;
/* IBSS/TIM */
- if (vap->iv_opmode == IEEE80211_M_IBSS) {
+ if (ic->ic_opmode == IEEE80211_M_IBSS) {
*frm++ = IEEE80211_ELEMID_IBSSPARMS;
*frm++ = 2;
*frm++ = 0; *frm++ = 0; /* TODO: ATIM window */
Index: madwifi-ng-r2978-20071127/net80211/ieee80211_input.c
===================================================================
--- madwifi-ng-r2978-20071127.orig/net80211/ieee80211_input.c 2007-11-27 21:18:08.269723596 +0100
+++ madwifi-ng-r2978-20071127/net80211/ieee80211_input.c 2007-11-27 21:18:30.038964155 +0100
@@ -3069,7 +3069,13 @@
return;
}
if (ni == vap->iv_bss) {
- if (vap->iv_opmode == IEEE80211_M_IBSS) {
+ /* this probe request may have been sent to all vaps
+ * to give each a chance of creating a node for this.
+ * important for hostap+ibss mode */
+ ni = ieee80211_find_rxnode(ic, (const struct ieee80211_frame_min *) skb->data);
+ if (ni) {
+ allocbs = 0;
+ } else if (vap->iv_opmode == IEEE80211_M_IBSS) {
/*
* XXX Cannot tell if the sender is operating
* in ibss mode. But we need a new node to
@@ -3078,12 +3084,13 @@
*/
ni = ieee80211_fakeup_adhoc_node(vap,
wh->i_addr2);
+ allocbs = 1;
} else {
ni = ieee80211_dup_bss(vap, wh->i_addr2, 1);
+ allocbs = 1;
}
if (ni == NULL)
return;
- allocbs = 1;
}
IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_INPUT, wh->i_addr2,
Index: madwifi-ng-r2978-20071127/net80211/ieee80211_node.c
===================================================================
--- madwifi-ng-r2978-20071127.orig/net80211/ieee80211_node.c 2007-11-27 21:18:08.281724279 +0100
+++ madwifi-ng-r2978-20071127/net80211/ieee80211_node.c 2007-11-27 21:24:30.083481925 +0100
@@ -1326,13 +1326,26 @@
IEEE80211_NODE_TABLE_LOCK_ASSERT(nt);
hash = IEEE80211_NODE_HASH(macaddr);
+
+ /* look for non-ibss nodes first */
LIST_FOREACH(ni, &nt->nt_hash[hash], ni_hash) {
- if (IEEE80211_ADDR_EQ(ni->ni_macaddr, macaddr)) {
+ if (IEEE80211_ADDR_EQ(ni->ni_macaddr, macaddr) && ni->ni_vap->iv_opmode != IEEE80211_M_IBSS) {
#ifdef IEEE80211_DEBUG_REFCNT
ieee80211_ref_node_debug(ni, func, line);
#else
ieee80211_ref_node(ni);
-#endif
+#endif
+ return ni;
+ }
+ }
+
+ LIST_FOREACH(ni, &nt->nt_hash[hash], ni_hash) {
+ if (IEEE80211_ADDR_EQ(ni->ni_macaddr, macaddr) && ni->ni_vap->iv_opmode == IEEE80211_M_IBSS) {
+#ifdef IEEE80211_DEBUG_REFCNT
+ ieee80211_ref_node_debug(ni, func, line);
+#else
+ ieee80211_ref_node(ni);
+#endif
return ni;
}
}
@@ -1345,7 +1358,7 @@
return ieee80211_ref_node_debug(wds->wds_ni, func, line);
#else
return ieee80211_ref_node(wds->wds_ni);
-#endif
+#endif
}
}
return NULL;
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