X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/0e9ca337996b5b4ef392bc92cde7f4bc9699b3ea..613e530afeab2eb78d7b4100420fd305662beab1:/package/madwifi/patches-r3776/327-rssi_disconnect.patch

diff --git a/package/madwifi/patches-r3776/327-rssi_disconnect.patch b/package/madwifi/patches-r3776/327-rssi_disconnect.patch
new file mode 100644
index 000000000..1ce8e2a71
--- /dev/null
+++ b/package/madwifi/patches-r3776/327-rssi_disconnect.patch
@@ -0,0 +1,99 @@
+Add an optional threshold for low-rssi disconnection. This can be useful
+when letting wpa_supplicant control roaming.
+
+Signed-off-by: Felix Fietkau <nbd@openwrt.org>
+
+Index: madwifi-trunk-r3776/net80211/ieee80211_ioctl.h
+===================================================================
+--- madwifi-trunk-r3776.orig/net80211/ieee80211_ioctl.h	2008-07-17 04:03:30.000000000 +0200
++++ madwifi-trunk-r3776/net80211/ieee80211_ioctl.h	2008-07-17 04:07:29.000000000 +0200
+@@ -656,6 +656,8 @@
+ 	IEEE80211_PARAM_PROTMODE_RSSI		= 85,	/* RSSI Threshold for enabling protection mode */
+ 	IEEE80211_PARAM_PROTMODE_TIMEOUT	= 86,	/* Timeout for expiring protection mode */
+ 	IEEE80211_PARAM_BGSCAN_THRESH		= 87,	/* bg scan rssi threshold */
++	IEEE80211_PARAM_RSSI_DIS_THR	= 88,	/* rssi threshold for disconnection */
++	IEEE80211_PARAM_RSSI_DIS_COUNT	= 89,	/* counter for rssi threshold */
+ };
+ 
+ #define	SIOCG80211STATS			(SIOCDEVPRIVATE+2)
+Index: madwifi-trunk-r3776/net80211/ieee80211_wireless.c
+===================================================================
+--- madwifi-trunk-r3776.orig/net80211/ieee80211_wireless.c	2008-07-17 04:03:07.000000000 +0200
++++ madwifi-trunk-r3776/net80211/ieee80211_wireless.c	2008-07-17 04:07:56.000000000 +0200
+@@ -2832,6 +2832,12 @@
+ 	case IEEE80211_PARAM_ROAM_RATE_11G:
+ 		vap->iv_roam.rate11g = value;
+ 		break;
++	case IEEE80211_PARAM_RSSI_DIS_THR:
++		vap->iv_rssi_dis_thr = value;
++		break;
++	case IEEE80211_PARAM_RSSI_DIS_COUNT:
++		vap->iv_rssi_dis_max = value;
++		break;
+ 	case IEEE80211_PARAM_UAPSDINFO:
+ 		if (vap->iv_opmode == IEEE80211_M_HOSTAP) {
+ 			if (ic->ic_caps & IEEE80211_C_UAPSD) {
+@@ -3220,6 +3226,12 @@
+ 	case IEEE80211_PARAM_ROAM_RATE_11G:
+ 		param[0] = vap->iv_roam.rate11g;
+ 		break;
++	case IEEE80211_PARAM_RSSI_DIS_THR:
++		param[0] = vap->iv_rssi_dis_thr;
++		break;
++	case IEEE80211_PARAM_RSSI_DIS_COUNT:
++		param[0] = vap->iv_rssi_dis_max;
++		break;
+ 	case IEEE80211_PARAM_UAPSDINFO:
+ 		if (vap->iv_opmode == IEEE80211_M_HOSTAP) {
+ 			if (IEEE80211_VAP_UAPSD_ENABLED(vap))
+@@ -5770,6 +5782,14 @@
+ 	  IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "rate11g_x2" },
+ 	{ IEEE80211_PARAM_ROAM_RATE_11G,
+ 	  0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_rate11g_x2" },
++	{ IEEE80211_PARAM_RSSI_DIS_THR,
++	  IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "rssi_disthr" },
++	{ IEEE80211_PARAM_RSSI_DIS_THR,
++	  0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_rssi_disthr" },
++	{ IEEE80211_PARAM_RSSI_DIS_COUNT,
++	  IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "rssi_discnt" },
++	{ IEEE80211_PARAM_RSSI_DIS_COUNT,
++	  0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_rssi_discnt" },
+ 	{ IEEE80211_PARAM_UAPSDINFO,
+ 	  IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "uapsd" },
+ 	{ IEEE80211_PARAM_UAPSDINFO,
+Index: madwifi-trunk-r3776/net80211/ieee80211_input.c
+===================================================================
+--- madwifi-trunk-r3776.orig/net80211/ieee80211_input.c	2008-07-17 04:07:08.000000000 +0200
++++ madwifi-trunk-r3776/net80211/ieee80211_input.c	2008-07-17 04:09:03.000000000 +0200
+@@ -3234,6 +3234,17 @@
+ 
+ 			/* When rssi is low, start doing bgscans more frequently to allow
+ 			 * the supplicant to make a better switching decision */
++			if ((vap->iv_rssi_dis_thr > 0) && (vap->iv_rssi_dis_max > 0)) {
++				if ((rssi > 0) && (rssi < vap->iv_rssi_dis_thr)) {
++					if (++vap->iv_rssi_dis_trig > vap->iv_rssi_dis_max) {
++						vap->iv_rssi_dis_trig = 0;
++						ieee80211_node_leave(ni);
++						return 0;
++					}
++				} else {
++					vap->iv_rssi_dis_trig = 0;
++				}
++			}
+ 			if ((rssi < vap->iv_bgscanthr) &&
+ 					(!vap->iv_bgscanthr_next ||
+ 						!time_before(jiffies, vap->iv_bgscanthr_next)) &&
+Index: madwifi-trunk-r3776/net80211/ieee80211_var.h
+===================================================================
+--- madwifi-trunk-r3776.orig/net80211/ieee80211_var.h	2008-07-17 04:07:08.000000000 +0200
++++ madwifi-trunk-r3776/net80211/ieee80211_var.h	2008-07-17 04:07:10.000000000 +0200
+@@ -233,6 +233,9 @@
+ 	u_int iv_bgscanintvl;				/* bg scan min interval */
+ 	u_int iv_bgscanthr;					/* bg scan rssi threshold */
+ 	u_int iv_bgscantrintvl;				/* bg scan trigger interval */
++	u_int iv_rssi_dis_thr;				/* rssi disassoc threshold */
++	u_int iv_rssi_dis_max;				/* max beacons below disconnect threshold */
++	u_int iv_rssi_dis_trig;				/* rssi disassoc trigger count */
+ 	unsigned long iv_bgscanthr_next;		/* last trigger for bgscan */
+ 	u_int iv_scanvalid;				/* scan cache valid threshold */
+ 	struct ieee80211_roam iv_roam;			/* sta-mode roaming state */