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mac80211: handle operating mode notif in beacon/assoc response

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In beacons and association response frames an AP may include an
operating mode notification element to advertise changes in the
number of spatial streams it can receive. Handle this using the
existing function that handles the action frame, but only handle
NSS changes, not bandwidth changes which aren't allowed here.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2013-02-07 22:24:55 +01:00
parent 18942d3be0
commit bee7f58699
5 changed files with 38 additions and 6 deletions
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6
net/mac80211/util.c
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@@ -787,6 +787,12 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
else
elem_parse_failed = true;
break;
case WLAN_EID_OPMODE_NOTIF:
if (elen > 0)
elems->opmode_notif = pos;
else
elem_parse_failed = true;
break;
case WLAN_EID_MESH_ID:
elems->mesh_id = pos;
elems->mesh_id_len = elen;