[PATCH] libertas: specific mesh scan for mshX interface
With this patch, scanning with mshX interface will only return mesh networks. To
differentiate them, a specific mesh IE in beacons/probe responses is used. This
IE has been introduced in firmware release 5.110.14. Note:
Even though there can be at most a single mesh per channel, this scan might
return several networks in the same channel.
If all nodes in a mesh network are associated to an AP, they won't produce
beacons/probe responses, thus the network will not be listed. This will be fixed
in future firmware releases.
Scan on ethX interface is not filtered, so it will list both mesh and non-mesh
networks.
Signed-off-by: Luis Carlos Cobo <luisca@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/libertas/defs.h b/drivers/net/wireless/libertas/defs.h
index de0756e..a5d70c1 100644
--- a/drivers/net/wireless/libertas/defs.h
+++ b/drivers/net/wireless/libertas/defs.h
@@ -156,6 +156,8 @@
#define MRVDRV_MAX_BEACON_INTERVAL 1000
#define MRVDRV_BEACON_INTERVAL 100
+#define MARVELL_MESH_IE_LENGTH 9
+
/** INT status Bit Definition*/
#define his_cmddnldrdy 0x01
#define his_cardevent 0x02
diff --git a/drivers/net/wireless/libertas/scan.c b/drivers/net/wireless/libertas/scan.c
index 2d6bc78..a98feed 100644
--- a/drivers/net/wireless/libertas/scan.c
+++ b/drivers/net/wireless/libertas/scan.c
@@ -1099,6 +1099,12 @@
memcpy(bss->wpa_ie, elem, bss->wpa_ie_len);
lbs_dbg_hex("process_bss: WPA IE", bss->wpa_ie,
elem->len);
+ } else if (elem->len >= MARVELL_MESH_IE_LENGTH &&
+ elem->data[0] == 0x00 &&
+ elem->data[1] == 0x50 &&
+ elem->data[2] == 0x43 &&
+ elem->data[3] == 0x04) {
+ bss->mesh = 1;
}
break;
@@ -1611,6 +1617,10 @@
break;
}
+ /* For mesh device, list only mesh networks */
+ if (dev == priv->mesh_dev && !iter_bss->mesh)
+ continue;
+
/* Prune old an old scan result */
stale_time = iter_bss->last_scanned + DEFAULT_MAX_SCAN_AGE;
if (time_after(jiffies, stale_time)) {
diff --git a/drivers/net/wireless/libertas/scan.h b/drivers/net/wireless/libertas/scan.h
index 2a09573..23c539c 100644
--- a/drivers/net/wireless/libertas/scan.h
+++ b/drivers/net/wireless/libertas/scan.h
@@ -170,6 +170,8 @@
u8 rsn_ie[MAX_WPA_IE_LEN];
size_t rsn_ie_len;
+ u8 mesh;
+
struct list_head list;
};