cfg80211/mac80211: allow per-station GTKs

This adds API to allow adding per-station GTKs,
updates mac80211 to support it, and also allows
drivers to remove a key from hwaccel again when
this may be necessary due to multiple GTKs.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index c4efdfa24ed8..e451f176e662 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -801,6 +801,9 @@ enum nl80211_commands {
  *      This is used in association with @NL80211_ATTR_WIPHY_TX_POWER_SETTING
  *      for non-automatic settings.
  *
+ * @NL80211_ATTR_SUPPORT_IBSS_RSN: The device supports IBSS RSN, which mostly
+ *      means support for per-station GTKs.
+ *
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
  */
@@ -968,6 +971,8 @@ enum nl80211_attrs {
         NL80211_ATTR_CONTROL_PORT_ETHERTYPE,
         NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT,
 
+        NL80211_ATTR_SUPPORT_IBSS_RSN,
+
         /* add attributes here, update the policy in nl80211.c */
 
         __NL80211_ATTR_AFTER_LAST,
@@ -1659,11 +1664,14 @@ enum nl80211_auth_type {
  * @NL80211_KEYTYPE_GROUP: Group (broadcast/multicast) key
  * @NL80211_KEYTYPE_PAIRWISE: Pairwise (unicast/individual) key
  * @NL80211_KEYTYPE_PEERKEY: PeerKey (DLS)
+ * @NUM_NL80211_KEYTYPES: number of defined key types
  */
 enum nl80211_key_type {
         NL80211_KEYTYPE_GROUP,
         NL80211_KEYTYPE_PAIRWISE,
         NL80211_KEYTYPE_PEERKEY,
+
+        NUM_NL80211_KEYTYPES
 };
 
 /**
@@ -1694,6 +1702,9 @@ enum nl80211_wpa_versions {
  *      CCMP keys, each six bytes in little endian
  * @NL80211_KEY_DEFAULT: flag indicating default key
  * @NL80211_KEY_DEFAULT_MGMT: flag indicating default management key
+ * @NL80211_KEY_TYPE: the key type from enum nl80211_key_type, if not
+ *      specified the default depends on whether a MAC address was
+ *      given with the command using the key or not (u32)
  * @__NL80211_KEY_AFTER_LAST: internal
  * @NL80211_KEY_MAX: highest key attribute
  */
@@ -1705,6 +1716,7 @@ enum nl80211_key_attributes {
         NL80211_KEY_SEQ,
         NL80211_KEY_DEFAULT,
         NL80211_KEY_DEFAULT_MGMT,
+        NL80211_KEY_TYPE,
 
         /* keep last */
         __NL80211_KEY_AFTER_LAST,