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ath10k: split ap/ibss wep key install process 

Apparently it's not safe to install both pairwise
and groupwise keys on AP vdevs as it can cause
traffic to stop working in some multi-vif
(WPA+WEP) cases.

Fixes: ce90b27128 ("ath10k: fix multiple key static wep with ibss")
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Michal Kazior 2015-08-13 14:10:46 +02:00 committed by Kalle Valo
parent 9c8fb548fb
commit 8674d909fa
1 changed files with 32 additions and 12 deletions
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44
drivers/net/wireless/ath/ath10k/mac.c
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@ -247,6 +247,10 @@ static int ath10k_install_peer_wep_keys(struct ath10k_vif *arvif,
lockdep_assert_held(&ar->conf_mutex);
if (WARN_ON(arvif->vif->type != NL80211_IFTYPE_AP &&
arvif->vif->type != NL80211_IFTYPE_ADHOC))
return -EINVAL;
spin_lock_bh(&ar->data_lock);
peer = ath10k_peer_find(ar, arvif->vdev_id, addr);
spin_unlock_bh(&ar->data_lock);
@ -258,21 +262,34 @@ static int ath10k_install_peer_wep_keys(struct ath10k_vif *arvif,
if (arvif->wep_keys[i] == NULL)
continue;
flags = 0;
flags |= WMI_KEY_PAIRWISE;
switch (arvif->vif->type) {
case NL80211_IFTYPE_AP:
flags = WMI_KEY_PAIRWISE;
ret = ath10k_install_key(arvif, arvif->wep_keys[i], SET_KEY,
addr, flags);
if (ret < 0)
return ret;
if (arvif->def_wep_key_idx == i)
flags |= WMI_KEY_TX_USAGE;
flags = 0;
flags |= WMI_KEY_GROUP;
ret = ath10k_install_key(arvif, arvif->wep_keys[i],
SET_KEY, addr, flags);
if (ret < 0)
return ret;
break;
case NL80211_IFTYPE_ADHOC:
ret = ath10k_install_key(arvif, arvif->wep_keys[i],
SET_KEY, addr,
WMI_KEY_PAIRWISE);
if (ret < 0)
return ret;
ret = ath10k_install_key(arvif, arvif->wep_keys[i], SET_KEY,
addr, flags);
if (ret < 0)
return ret;
ret = ath10k_install_key(arvif, arvif->wep_keys[i],
SET_KEY, addr, WMI_KEY_GROUP);
if (ret < 0)
return ret;
break;
default:
WARN_ON(1);
return -EINVAL;
}
spin_lock_bh(&ar->data_lock);
peer->keys[i] = arvif->wep_keys[i];
@ -287,6 +304,9 @@ static int ath10k_install_peer_wep_keys(struct ath10k_vif *arvif,
*
* FIXME: Revisit. Perhaps this can be done in a less hacky way.
*/
if (arvif->vif->type != NL80211_IFTYPE_ADHOC)
return 0;
if (arvif->def_wep_key_idx == -1)
return 0;