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authorAlexander Wetzel <alexander@wetzel-home.de>2019-06-29 21:50:13 +0200
committerJohannes Berg <johannes.berg@intel.com>2019-07-26 13:28:59 +0200
commit3e47bf1ca4c363ba8b1f99c4c3dcda13d2979954 (patch)
treebae4421aca28d386485e5fc0a6d32c82c0bca7e6 /net/mac80211/key.c
parent5d29050b409d961df34a7290270ba53f0c025152 (diff)
mac80211: Simplify Extended Key ID API
1) Drop IEEE80211_HW_EXT_KEY_ID_NATIVE and let drivers directly set the NL80211_EXT_FEATURE_EXT_KEY_ID flag. 2) Drop IEEE80211_HW_NO_AMPDU_KEYBORDER_SUPPORT and simply assume all drivers are unable to handle A-MPDU key borders. The new Extended Key ID API now requires all mac80211 drivers to set NL80211_EXT_FEATURE_EXT_KEY_ID when they implement set_key() and can handle Extended Key ID. For drivers not providing set_key() mac80211 itself enables Extended Key ID support, using the internal SW crypto services. Signed-off-by: Alexander Wetzel <alexander@wetzel-home.de> Link: https://lore.kernel.org/r/20190629195015.19680-2-alexander@wetzel-home.de Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/key.c')
-rw-r--r--net/mac80211/key.c18
1 files changed, 8 insertions, 10 deletions
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index dd60f6428049..92c3affb0eb0 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -270,8 +270,7 @@ int ieee80211_set_tx_key(struct ieee80211_key *key)
sta->ptk_idx = key->conf.keyidx;
- if (ieee80211_hw_check(&local->hw, NO_AMPDU_KEYBORDER_SUPPORT))
- clear_sta_flag(sta, WLAN_STA_BLOCK_BA);
+ clear_sta_flag(sta, WLAN_STA_BLOCK_BA);
ieee80211_check_fast_xmit(sta);
return 0;
@@ -289,16 +288,15 @@ static void ieee80211_pairwise_rekey(struct ieee80211_key *old,
if (new->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) {
/* Extended Key ID key install, initial one or rekey */
- if (sta->ptk_idx != INVALID_PTK_KEYIDX &&
- ieee80211_hw_check(&local->hw,
- NO_AMPDU_KEYBORDER_SUPPORT)) {
+ if (sta->ptk_idx != INVALID_PTK_KEYIDX) {
/* Aggregation Sessions with Extended Key ID must not
* mix MPDUs with different keyIDs within one A-MPDU.
- * Tear down any running Tx aggregation and all new
- * Rx/Tx aggregation request during rekey if the driver
- * asks us to do so. (Blocking Tx only would be
- * sufficient but WLAN_STA_BLOCK_BA gets the job done
- * for the few ms we need it.)
+ * Tear down running Tx aggregation sessions and block
+ * new Rx/Tx aggregation requests during rekey to
+ * ensure there are no A-MPDUs for the driver to
+ * aggregate. (Blocking Tx only would be sufficient but
+ * WLAN_STA_BLOCK_BA gets the job done for the few ms
+ * we need it.)
*/
set_sta_flag(sta, WLAN_STA_BLOCK_BA);
mutex_lock(&sta->ampdu_mlme.mtx);