int vnt_set_keys(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
struct ieee80211_vif *vif, struct ieee80211_key_conf *key)
{
struct ieee80211_bss_conf *conf = &vif->bss_conf;
struct vnt_private *priv = hw->priv;
u8 *mac_addr = NULL;
u8 key_dec_mode = 0;
int ret = 0, u;
if (sta)
mac_addr = &sta->addr[0];
switch (key->cipher) {
case 0:
for (u = 0 ; u < MAX_KEY_TABLE; u++)
vnt_mac_disable_keyentry(priv, u);
return ret;
case WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_WEP104:
for (u = 0; u < MAX_KEY_TABLE; u++)
vnt_mac_disable_keyentry(priv, u);
vnt_set_keymode(hw, mac_addr, key, VNT_KEY_DEFAULTKEY,
KEY_CTL_WEP, true);
key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
return ret;
case WLAN_CIPHER_SUITE_TKIP:
key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
key_dec_mode = KEY_CTL_TKIP;
break;
case WLAN_CIPHER_SUITE_CCMP:
if (priv->local_id <= MAC_REVISION_A1)
return -EINVAL;
key_dec_mode = KEY_CTL_CCMP;
key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
}
if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
vnt_set_keymode(hw, mac_addr, key, VNT_KEY_PAIRWISE,
key_dec_mode, true);
} else {
vnt_set_keymode(hw, mac_addr, key, VNT_KEY_DEFAULTKEY,
key_dec_mode, true);
vnt_set_keymode(hw, (u8 *)conf->bssid, key,
VNT_KEY_GROUP_ADDRESS, key_dec_mode, true);
}
return 0;
}
static void vnt_stop(struct ieee80211_hw *hw)
{
struct vnt_private *priv = hw->priv;
int i;
if (!priv)
return;
for (i = 0; i < MAX_KEY_TABLE; i++)
vnt_mac_disable_keyentry(priv, i);
/* clear all keys */
priv->key_entry_inuse = 0;
if (!test_bit(DEVICE_FLAGS_UNPLUG, &priv->flags))
vnt_mac_shutdown(priv);
ieee80211_stop_queues(hw);
set_bit(DEVICE_FLAGS_DISCONNECTED, &priv->flags);
cancel_delayed_work_sync(&priv->run_command_work);
priv->cmd_running = false;
vnt_free_tx_bufs(priv);
vnt_free_rx_bufs(priv);
vnt_free_int_bufs(priv);
usb_kill_urb(priv->interrupt_urb);
usb_free_urb(priv->interrupt_urb);
}