diff options
| author | Lorenzo Bianconi <lorenzo@kernel.org> | 2019-07-16 01:09:19 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2019-07-26 17:14:12 +0300 |
| commit | a0b4496a43681cbeec03a38e1b685c80c0d7405d (patch) | |
| tree | 068b93272fc5f996ed367355bffeeef16c4fc200 | |
| parent | ef11a931bd1c57b02fe2603ff95a392a73041f9e (diff) | |
| download | linux-a0b4496a43681cbeec03a38e1b685c80c0d7405d.tar.xz | |
mac80211: add IEEE80211_KEY_FLAG_GENERATE_MMIE to ieee80211_key_flags
Add IEEE80211_KEY_FLAG_GENERATE_MMIE flag to ieee80211_key_flags in order
to allow the driver to notify mac80211 to generate MMIE and that it
requires sequence number generation only.
This is a preliminary patch to add BIP_CMAC_128 hw support to mt7615
driver
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/dfe275f9aa0f1cc6b33085f9efd5d8447f68ad13.1563228405.git.lorenzo@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| -rw-r--r-- | include/net/mac80211.h | 4 | ||||
| -rw-r--r-- | net/mac80211/wpa.c | 6 |
2 files changed, 9 insertions, 1 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 6fe4381ba0ef..9effd286c1ae 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1704,6 +1704,9 @@ struct wireless_dev *ieee80211_vif_to_wdev(struct ieee80211_vif *vif); * a TKIP key if it only requires MIC space. Do not set together with * @IEEE80211_KEY_FLAG_GENERATE_MMIC on the same key. * @IEEE80211_KEY_FLAG_NO_AUTO_TX: Key needs explicit Tx activation. + * @IEEE80211_KEY_FLAG_GENERATE_MMIE: This flag should be set by the driver + * for a AES_CMAC key to indicate that it requires sequence number + * generation only */ enum ieee80211_key_flags { IEEE80211_KEY_FLAG_GENERATE_IV_MGMT = BIT(0), @@ -1716,6 +1719,7 @@ enum ieee80211_key_flags { IEEE80211_KEY_FLAG_RESERVE_TAILROOM = BIT(7), IEEE80211_KEY_FLAG_PUT_MIC_SPACE = BIT(8), IEEE80211_KEY_FLAG_NO_AUTO_TX = BIT(9), + IEEE80211_KEY_FLAG_GENERATE_MMIE = BIT(10), }; /** diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c index ee72779729e5..91bf32af55e9 100644 --- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c @@ -946,7 +946,8 @@ ieee80211_crypto_aes_cmac_encrypt(struct ieee80211_tx_data *tx) info = IEEE80211_SKB_CB(skb); - if (info->control.hw_key) + if (info->control.hw_key && + !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIE)) return TX_CONTINUE; if (WARN_ON(skb_tailroom(skb) < sizeof(*mmie))) @@ -962,6 +963,9 @@ ieee80211_crypto_aes_cmac_encrypt(struct ieee80211_tx_data *tx) bip_ipn_set64(mmie->sequence_number, pn64); + if (info->control.hw_key) + return TX_CONTINUE; + bip_aad(skb, aad); /* |