madwifi: add patch to allow ignoring probe requests (useful for ad-hoc mesh)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13760 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/madwifi/patches/394-probereq.patch

+--- a/net80211/ieee80211_input.c
++++ b/net80211/ieee80211_input.c
+@@ -3604,6 +3604,8 @@ ieee80211_recv_mgmt(struct ieee80211vap 
+ 			vap->iv_stats.is_rx_mgtdiscard++;
+ 			return;
+ 		}
++		if (vap->iv_no_probereq)
++			return;
+ 		if (IEEE80211_IS_MULTICAST(wh->i_addr2)) {
+ 			/* frame must be directed */
+ 			vap->iv_stats.is_rx_mgtdiscard++;	/* XXX: stat */
+--- a/net80211/ieee80211_ioctl.h
++++ b/net80211/ieee80211_ioctl.h
+@@ -651,6 +651,7 @@ enum {
+ 	IEEE80211_PARAM_RSSI_DIS_COUNT	= 81,	/* counter for rssi threshold */
+ 	IEEE80211_PARAM_WDS_SEP			= 82,	/* move wds stations into separate interfaces */
+ 	IEEE80211_PARAM_MAXASSOC		= 83,	/* maximum associated stations */
++	IEEE80211_PARAM_PROBEREQ		= 84,	/* enable handling of probe requests */
+ };
+ 
+ #define	SIOCG80211STATS			(SIOCDEVPRIVATE+2)
+--- a/net80211/ieee80211_var.h
++++ b/net80211/ieee80211_var.h
+@@ -198,6 +198,7 @@ struct ieee80211vap {
+ 	u_int32_t iv_debug;				/* debug msg flags */
+ 	struct ieee80211_stats iv_stats;		/* statistics */
+ 
++	int iv_no_probereq;
+ 	int iv_max_nodes;
+ 	int iv_monitor_nods_only;			/* in monitor mode only nods traffic */
+ 	int iv_monitor_txf_len;				/* in monitor mode, truncate tx packets */
+--- a/net80211/ieee80211_wireless.c
++++ b/net80211/ieee80211_wireless.c
+@@ -2881,6 +2881,9 @@ ieee80211_ioctl_setparam(struct net_devi
+ 		else
+ 			vap->iv_max_nodes = value;
+ 		break;
++	case IEEE80211_PARAM_PROBEREQ:
++		vap->iv_no_probereq = !value;
++		break;
+ #ifdef ATH_REVERSE_ENGINEERING
+ 	case IEEE80211_PARAM_DUMPREGS:
+ 		ieee80211_dump_registers(dev, info, w, extra);
+@@ -3243,6 +3246,9 @@ ieee80211_ioctl_getparam(struct net_devi
+ 	case IEEE80211_PARAM_MAXASSOC:
+ 		param[0] = vap->iv_max_nodes;
+ 		break;
++	case IEEE80211_PARAM_PROBEREQ:
++		param[0] = !vap->iv_no_probereq;
++		break;
+ 	default:
+ 		return -EOPNOTSUPP;
+ 	}
+@@ -5802,6 +5808,10 @@ static const struct iw_priv_args ieee802
+ 	 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "maxassoc"},
+ 	{ IEEE80211_PARAM_MAXASSOC,
+ 	 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_maxassoc"},
++	{ IEEE80211_PARAM_PROBEREQ,
++	 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "probereq"},
++	{ IEEE80211_PARAM_PROBEREQ,
++	 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_probereq"},
+ 
+ #ifdef ATH_REVERSE_ENGINEERING
+ 	/*