mac80211: add TDLS QoS param IE on setup-confirm

When TDLS QoS is supported by the the peer and the local card, add
the WMM parameter IE to the setup-confirm frame. Take the QoS settings
from the current AP, or if unsupported, use the default values from
the specification. This behavior is mandated by IEEE802.11-2012 section
10.22.4.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 54278c7d2ed2eff5157771006db0c0738e5fdbac..2d72caecc308d48684315673f67960500402b523 100644 (file)
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -1005,6 +1005,26 @@ struct ieee80211_vendor_ie {
        u8 oui_type;
 } __packed;
 
+struct ieee80211_wmm_ac_param {
+       u8 aci_aifsn; /* AIFSN, ACM, ACI */
+       u8 cw; /* ECWmin, ECWmax (CW = 2^ECW - 1) */
+       __le16 txop_limit;
+} __packed;
+
+struct ieee80211_wmm_param_ie {
+       u8 element_id; /* Element ID: 221 (0xdd); */
+       u8 len; /* Length: 24 */
+       /* required fields for WMM version 1 */
+       u8 oui[3]; /* 00:50:f2 */
+       u8 oui_type; /* 2 */
+       u8 oui_subtype; /* 1 */
+       u8 version; /* 1 for WMM version 1.0 */
+       u8 qos_info; /* AP/STA specific QoS info */
+       u8 reserved; /* 0 */
+       /* AC_BE, AC_BK, AC_VI, AC_VO */
+       struct ieee80211_wmm_ac_param ac[4];
+} __packed;
+
 /* Control frames */
 struct ieee80211_rts {
        __le16 frame_control;