mac80211: Add MIC space only for TX key option
Add a key flag to indicates that the device only needs
MIC space and not a real MIC.
In such cases, keep the MIC zeroed for ease of debug.
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 2ee4af2..906e902 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1552,6 +1552,9 @@ struct wireless_dev *ieee80211_vif_to_wdev(struct ieee80211_vif *vif);
* @IEEE80211_KEY_FLAG_RESERVE_TAILROOM: This flag should be set by the
* driver for a key to indicate that sufficient tailroom must always
* be reserved for ICV or MIC, even when HW encryption is enabled.
+ * @IEEE80211_KEY_FLAG_PUT_MIC_SPACE: This flag should be set by the driver for
+ * a TKIP key if it only requires MIC space. Do not set together with
+ * @IEEE80211_KEY_FLAG_GENERATE_MMIC on the same key.
*/
enum ieee80211_key_flags {
IEEE80211_KEY_FLAG_GENERATE_IV_MGMT = BIT(0),
@@ -1562,6 +1565,7 @@ enum ieee80211_key_flags {
IEEE80211_KEY_FLAG_PUT_IV_SPACE = BIT(5),
IEEE80211_KEY_FLAG_RX_MGMT = BIT(6),
IEEE80211_KEY_FLAG_RESERVE_TAILROOM = BIT(7),
+ IEEE80211_KEY_FLAG_PUT_MIC_SPACE = BIT(8),
};
/**
@@ -1593,8 +1597,8 @@ struct ieee80211_key_conf {
u8 icv_len;
u8 iv_len;
u8 hw_key_idx;
- u8 flags;
s8 keyidx;
+ u16 flags;
u8 keylen;
u8 key[0];
};