mac80211: support adding IV-room in the skb for CCMP keys
Some cards can generate CCMP IVs in HW, but require the space for the IV
to be pre-allocated in the frame at the correct offset. Add a key flag
that allows us to achieve this.
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index dc1123a..f4e0ab4 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -901,6 +901,10 @@
* @IEEE80211_KEY_FLAG_SW_MGMT: This flag should be set by the driver for a
* CCMP key if it requires CCMP encryption of management frames (MFP) to
* be done in software.
+ * @IEEE80211_KEY_FLAG_PUT_IV_SPACE: This flag should be set by the driver
+ * for a CCMP key if space should be prepared for the IV, but the IV
+ * itself should not be generated. Do not set together with
+ * @IEEE80211_KEY_FLAG_GENERATE_IV on the same key.
*/
enum ieee80211_key_flags {
IEEE80211_KEY_FLAG_WMM_STA = 1<<0,
@@ -908,6 +912,7 @@
IEEE80211_KEY_FLAG_GENERATE_MMIC= 1<<2,
IEEE80211_KEY_FLAG_PAIRWISE = 1<<3,
IEEE80211_KEY_FLAG_SW_MGMT = 1<<4,
+ IEEE80211_KEY_FLAG_PUT_IV_SPACE = 1<<5,
};
/**