mac80211: parse VHT channel switch IEs

VHT introduces multiple IEs that need to be parsed for a
wide bandwidth channel switch. Two are (currently) needed
in mac80211:
 * wide bandwidth channel switch element
 * channel switch wrapper element

The former is contained in the latter for beacons and probe
responses, but not for the spectrum management action frames
so the IE parser needs a new argument to differentiate them.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index ce07161c8735..06b0ed0154a4 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -695,6 +695,14 @@ struct ieee80211_sec_chan_offs_ie {
 } __packed;
 
 /**
+ * struct ieee80211_wide_bw_chansw_ie - wide bandwidth channel switch IE
+ */
+struct ieee80211_wide_bw_chansw_ie {
+        u8 new_channel_width;
+        u8 new_center_freq_seg0, new_center_freq_seg1;
+} __packed;
+
+/**
  * struct ieee80211_tim
  *
  * This structure refers to "Traffic Indication Map information element"
@@ -1698,6 +1706,8 @@ enum ieee80211_eid {
         WLAN_EID_VHT_CAPABILITY = 191,
         WLAN_EID_VHT_OPERATION = 192,
         WLAN_EID_OPMODE_NOTIF = 199,
+        WLAN_EID_WIDE_BW_CHANNEL_SWITCH = 194,
+        WLAN_EID_CHANNEL_SWITCH_WRAPPER = 196,
 
         /* 802.11ad */
         WLAN_EID_NON_TX_BSSID_CAP =  83,