The driver now claims to support IBSS/RSN. Group key configuration in hardware
is skipped. Software encryption is used for multicast communications.

Signed-off-by: Antonio Quartulli <or...@autistici.org>
---
 drivers/net/wireless/b43/main.c |   16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index c79e663..05ea95b 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -4010,6 +4010,20 @@ static int b43_op_set_key(struct ieee80211_hw *hw, enum 
set_key_cmd cmd,
        if (modparam_nohwcrypt)
                return -ENOSPC; /* User disabled HW-crypto */
 
+       if ((vif->type == NL80211_IFTYPE_ADHOC ||
+            vif->type == NL80211_IFTYPE_MESH_POINT) &&
+           (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
+            key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
+           !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
+               /*
+                * For now, disable hw crypto for the RSN IBSS group keys. This
+                * could be optimized in the future, but until that gets
+                * implemented, use of software crypto for group addressed
+                * frames is a acceptable to allow RSN IBSS to be used.
+                */
+               return -EOPNOTSUPP;
+       }
+
        mutex_lock(&wl->mutex);
 
        dev = wl->current_dev;
@@ -5275,6 +5289,8 @@ static struct b43_wl *b43_wireless_init(struct 
b43_bus_dev *dev)
                BIT(NL80211_IFTYPE_WDS) |
                BIT(NL80211_IFTYPE_ADHOC);
 
+       hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
+
        hw->queues = modparam_qos ? B43_QOS_QUEUE_NUM : 1;
        wl->mac80211_initially_registered_queues = hw->queues;
        hw->max_rates = 2;
-- 
1.7.9.4


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