2012-09-10 05:12:47

by Chun-Yeow Yeoh

[permalink] [raw]
Subject: [PATCH] ath5k: disable HW crypto in management frame

Hardware support for MFP is not available in ath5k. Thus,
this implementation allows the mac80211 stack to do the
actuall crypto operation.

Signed-off-by: Chun-Yeow Yeoh <[email protected]>
---
drivers/net/wireless/ath/ath5k/base.c | 1 +
drivers/net/wireless/ath/ath5k/mac80211-ops.c | 3 +++
2 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index a0a202d..9fd6d9a 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -2446,6 +2446,7 @@ ath5k_init_ah(struct ath5k_hw *ah, const struct ath_bus_ops *bus_ops)
hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
IEEE80211_HW_SIGNAL_DBM |
+ IEEE80211_HW_MFP_CAPABLE |
IEEE80211_HW_REPORTS_TX_ACK_STATUS;

hw->wiphy->interface_modes =
diff --git a/drivers/net/wireless/ath/ath5k/mac80211-ops.c b/drivers/net/wireless/ath/ath5k/mac80211-ops.c
index df61a09..0f34086 100644
--- a/drivers/net/wireless/ath/ath5k/mac80211-ops.c
+++ b/drivers/net/wireless/ath/ath5k/mac80211-ops.c
@@ -489,6 +489,9 @@ ath5k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
if (ath5k_modparam_nohwcrypt)
return -EOPNOTSUPP;

+ if (key->flags & IEEE80211_KEY_FLAG_RX_MGMT)
+ return -EOPNOTSUPP;
+
if (vif->type == NL80211_IFTYPE_ADHOC &&
(key->cipher == WLAN_CIPHER_SUITE_TKIP ||
key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
--
1.7.0.4