mac80211: allow vendor specific cipher suites

Allow drivers to specify their own set of cipher
suites to advertise vendor-specific ciphers. The
driver is then required to implement hardware
crypto offload for it.

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

1 files changed, 10 insertions, 2 deletions

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index a6ac9fd248f2..31a8903a45af 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -947,6 +947,8 @@ ieee80211_tx_h_stats(struct ieee80211_tx_data *tx)
 static ieee80211_tx_result debug_noinline
 ieee80211_tx_h_encrypt(struct ieee80211_tx_data *tx)
 {
+        struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
+
         if (!tx->key)
                 return TX_CONTINUE;
 
@@ -960,10 +962,16 @@ ieee80211_tx_h_encrypt(struct ieee80211_tx_data *tx)
                 return ieee80211_crypto_ccmp_encrypt(tx);
         case WLAN_CIPHER_SUITE_AES_CMAC:
                 return ieee80211_crypto_aes_cmac_encrypt(tx);
+        default:
+                /* handle hw-only algorithm */
+                if (info->control.hw_key) {
+                        ieee80211_tx_set_protected(tx);
+                        return TX_CONTINUE;
+                }
+                break;
+
         }
 
-        /* not reached */
-        WARN_ON(1);
         return TX_DROP;
 }