cfg80211: Add support for QoS mapping

This allows QoS mapping from external networks to be implemented as
defined in IEEE Std 802.11-2012, 10.24.9. APs can use this to advertise
DSCP ranges and exceptions for mapping frames to a specific UP over
Wi-Fi.

The payload of the QoS Map Set element (IEEE Std 802.11-2012, 8.4.2.97)
is sent to the driver through the new NL80211_ATTR_QOS_MAP attribute to
configure the local behavior either on the AP (based on local
configuration) or on a station (based on information received from the
AP).

Signed-off-by: Kyeyoon Park <kyeyoonp@qca.qualcomm.com>
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 381184eb6c96..91054fd660e0 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -702,6 +702,12 @@
  *      (&struct nl80211_vendor_cmd_info) of the supported vendor commands.
  *      This may also be sent as an event with the same attributes.
  *
+ * @NL80211_CMD_SET_QOS_MAP: Set Interworking QoS mapping for IP DSCP values.
+ *      The QoS mapping information is included in %NL80211_ATTR_QOS_MAP. If
+ *      that attribute is not included, QoS mapping is disabled. Since this
+ *      QoS mapping is relevant for IP packets, it is only valid during an
+ *      association. This is cleared on disassociation and AP restart.
+ *
  * @NL80211_CMD_MAX: highest used command number
  * @__NL80211_CMD_AFTER_LAST: internal use
  */
@@ -871,6 +877,8 @@ enum nl80211_commands {
 
         NL80211_CMD_VENDOR,
 
+        NL80211_CMD_SET_QOS_MAP,
+
         /* add new commands above here */
 
         /* used to define NL80211_CMD_MAX below */
@@ -1543,6 +1551,10 @@ enum nl80211_commands {
  * @NL80211_ATTR_VENDOR_EVENTS: used for event list advertising in the wiphy
  *      info, containing a nested array of possible events
  *
+ * @NL80211_ATTR_QOS_MAP: IP DSCP mapping for Interworking QoS mapping. This
+ *      data is in the format defined for the payload of the QoS Map Set element
+ *      in IEEE Std 802.11-2012, 8.4.2.97.
+ *
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
  */
@@ -1869,6 +1881,8 @@ enum nl80211_attrs {
         NL80211_ATTR_VENDOR_DATA,
         NL80211_ATTR_VENDOR_EVENTS,
 
+        NL80211_ATTR_QOS_MAP,
+
         /* add attributes here, update the policy in nl80211.c */
 
         __NL80211_ATTR_AFTER_LAST,