nl80211: add scan width to bss and scan request structs

To allow scanning and working with 5 MHz and 10 MHz BSS, extend the
inform bss commands and add wrappers to take 5 and 10 MHz bss into
account.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>

1 files changed, 18 insertions, 0 deletions

diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 5abc54d14d4d..eb68735b3318 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -2808,6 +2808,21 @@ enum nl80211_chan_width {
 };
 
 /**
+ * enum nl80211_bss_scan_width - control channel width for a BSS
+ *
+ * These values are used with the %NL80211_BSS_CHAN_WIDTH attribute.
+ *
+ * @NL80211_BSS_CHAN_WIDTH_20: control channel is 20 MHz wide or compatible
+ * @NL80211_BSS_CHAN_WIDTH_10: control channel is 10 MHz wide
+ * @NL80211_BSS_CHAN_WIDTH_5: control channel is 5 MHz wide
+ */
+enum nl80211_bss_scan_width {
+        NL80211_BSS_CHAN_WIDTH_20,
+        NL80211_BSS_CHAN_WIDTH_10,
+        NL80211_BSS_CHAN_WIDTH_5,
+};
+
+/**
  * enum nl80211_bss - netlink attributes for a BSS
  *
  * @__NL80211_BSS_INVALID: invalid
@@ -2831,6 +2846,8 @@ enum nl80211_chan_width {
  * @NL80211_BSS_BEACON_IES: binary attribute containing the raw information
  *      elements from a Beacon frame (bin); not present if no Beacon frame has
  *      yet been received
+ * @NL80211_BSS_CHAN_WIDTH: channel width of the control channel
+ *      (u32, enum nl80211_bss_scan_width)
  * @__NL80211_BSS_AFTER_LAST: internal
  * @NL80211_BSS_MAX: highest BSS attribute
  */
@@ -2847,6 +2864,7 @@ enum nl80211_bss {
         NL80211_BSS_STATUS,
         NL80211_BSS_SEEN_MS_AGO,
         NL80211_BSS_BEACON_IES,
+        NL80211_BSS_CHAN_WIDTH,
 
         /* keep last */
         __NL80211_BSS_AFTER_LAST,