madwifi: add patch for doing ad-hoc and master mode at the same (including beacon handling)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7409 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 251 insertions, 0 deletions

diff --git a/package/madwifi/patches/121-ibss_hostap.patch b/package/madwifi/patches/121-ibss_hostap.patch
new file mode 100644
index 000000000..a4c615d16
--- /dev/null
+++ b/package/madwifi/patches/121-ibss_hostap.patch
@@ -0,0 +1,251 @@
+diff -ur madwifi.old/ath/if_ath.c madwifi.dev/ath/if_ath.c
+--- madwifi.old/ath/if_ath.c	2007-05-31 02:41:28.760477696 +0200
++++ madwifi.dev/ath/if_ath.c	2007-05-31 05:33:48.314626544 +0200
+@@ -1026,9 +1026,12 @@
+ 			ic_opmode = opmode;
+ 		break;
+ 	case IEEE80211_M_IBSS:
+-		if (sc->sc_nvaps != 0)		/* only one */
+-			return NULL;
+-		ic_opmode = opmode;
++		if (sc->sc_nvaps == 0)		/* only one */
++			ic_opmode = opmode;
++		else
++			ic_opmode = IEEE80211_M_HOSTAP;
++
++		sc->sc_nibssvaps++;
+ 		break;
+ 	case IEEE80211_M_AHDEMO:
+ 	case IEEE80211_M_MONITOR:
+@@ -1058,7 +1061,7 @@
+ 		return NULL;
+ 	}
+ 
+-	if (sc->sc_nvaps >= ATH_BCBUF) {
++	if (sc->sc_nvaps + sc->sc_nibssvaps >= ATH_BCBUF) {
+ 		printk(KERN_WARNING "too many virtual ap's (already got %d)\n", sc->sc_nvaps);
+ 		return NULL;
+ 	}
+@@ -1093,8 +1096,8 @@
+ 	 */
+ 	if (opmode == IEEE80211_M_MONITOR)
+ 		dev->type = ARPHRD_IEEE80211_RADIOTAP;
+-	if ((flags & IEEE80211_CLONE_BSSID) &&
+-	    sc->sc_nvaps != 0 && opmode != IEEE80211_M_WDS && sc->sc_hasbmask) {
++	if ((flags & IEEE80211_CLONE_BSSID) && sc->sc_hasbmask && 
++	    (opmode == IEEE80211_M_HOSTAP || opmode == IEEE80211_M_IBSS)) {
+ 		struct ieee80211vap *v;
+ 		unsigned int id_mask, id;
+ 		
+@@ -1107,18 +1110,22 @@
+ 		
+ 		/* 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));
+-		
+-		for (id = 0; id < ATH_BCBUF; id++) {
++		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);
++		}
++	
++		/* 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) {
+@@ -1128,33 +1135,14 @@
+ 		 */
+ 		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
+@@ -1263,7 +1251,9 @@
+ 		if (sc->sc_nbcnvaps == 0)
+ 			sc->sc_stagbeacons = 0;
+ 	}
+-	if (vap->iv_opmode == IEEE80211_M_STA) {
++	if (vap->iv_opmode == IEEE80211_M_IBSS) {
++		sc->sc_nibssvaps--;	
++	} if (vap->iv_opmode == IEEE80211_M_STA) {
+ 		sc->sc_nstavaps--;
+ 		if (sc->sc_nostabeacons)
+ 			sc->sc_nostabeacons = 0;
+@@ -3379,7 +3369,8 @@
+ 		 HAL_RX_FILTER_MCAST;
+ 	if (ic->ic_opmode != IEEE80211_M_STA)
+ 		rfilt |= HAL_RX_FILTER_PROBEREQ;
+-	if (ic->ic_opmode != IEEE80211_M_HOSTAP && (dev->flags & IFF_PROMISC))
++	if ((ic->ic_opmode != IEEE80211_M_HOSTAP && (dev->flags & IFF_PROMISC)) ||
++		((sc->sc_nvaps > 0) && (sc->sc_nibssvaps > 0)))
+ 		rfilt |= HAL_RX_FILTER_PROM;
+ 	if (ic->ic_opmode == IEEE80211_M_STA ||
+ 	    sc->sc_opmode == HAL_M_IBSS ||	/* NB: AHDEMO too */
+@@ -3387,7 +3378,7 @@
+ 		((ic->ic_opmode == IEEE80211_M_HOSTAP) &&
+ 		 (ic->ic_protmode != IEEE80211_PROT_NONE)))
+ 		rfilt |= HAL_RX_FILTER_BEACON;
+-	if (sc->sc_nmonvaps > 0) 
++	if (sc->sc_nmonvaps > 0)
+ 		rfilt |= (HAL_RX_FILTER_CONTROL | HAL_RX_FILTER_BEACON | 
+ 			  HAL_RX_FILTER_PROBEREQ | HAL_RX_FILTER_PROM);
+ 	return rfilt;
+@@ -5830,12 +5821,20 @@
+ 			type = ieee80211_input(ni, skb, rs->rs_rssi, rs->rs_tstamp);
+ 			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)
++				/* 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;
+diff -ur madwifi.old/ath/if_athvar.h madwifi.dev/ath/if_athvar.h
+--- madwifi.old/ath/if_athvar.h	2007-05-31 02:41:28.730482256 +0200
++++ madwifi.dev/ath/if_athvar.h	2007-05-31 04:36:20.707742456 +0200
+@@ -203,7 +203,7 @@
+ #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) 
+@@ -605,6 +605,7 @@
+ 	u_int16_t sc_nvaps;			/* # of active virtual ap's */
+ 	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 */
+diff -ur madwifi.old/net80211/ieee80211_beacon.c madwifi.dev/net80211/ieee80211_beacon.c
+--- madwifi.old/net80211/ieee80211_beacon.c	2007-05-31 02:41:28.781474504 +0200
++++ madwifi.dev/net80211/ieee80211_beacon.c	2007-05-31 03:29:12.197169152 +0200
+@@ -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 */
+diff -ur madwifi.old/net80211/ieee80211_input.c madwifi.dev/net80211/ieee80211_input.c
+--- madwifi.old/net80211/ieee80211_input.c	2007-05-31 02:41:28.784474048 +0200
++++ madwifi.dev/net80211/ieee80211_input.c	2007-05-31 05:36:08.577303376 +0200
+@@ -3020,7 +3020,13 @@
+ 			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
+@@ -3029,12 +3035,13 @@
+ 				 */
+ 				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,
+diff -ur madwifi.old/net80211/ieee80211_node.c madwifi.dev/net80211/ieee80211_node.c
+--- madwifi.old/net80211/ieee80211_node.c	2007-05-31 02:41:28.752478912 +0200
++++ madwifi.dev/net80211/ieee80211_node.c	2007-05-31 05:15:24.717398824 +0200
+@@ -1088,8 +1088,25 @@
+ 	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) && ni->ni_vap->iv_opmode != IEEE80211_M_IBSS) {
++			ieee80211_ref_node(ni);	/* mark referenced */
++#ifdef IEEE80211_DEBUG_REFCNT
++			IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_NODE,
++				"%s (%s:%u) %p<%s> refcnt %d\n", __func__,
++				func, line,
++				ni, ether_sprintf(ni->ni_macaddr),
++				ieee80211_node_refcnt(ni));
++#endif
++			return ni;
++		}
++	}
++
++	/* now look for ibss nodes */
+ 	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) {
+ 			ieee80211_ref_node(ni);	/* mark referenced */
+ #ifdef IEEE80211_DEBUG_REFCNT
+ 			IEEE80211_DPRINTF(ni->ni_vap, IEEE80211_MSG_NODE,