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rt2x00: Block all unsupported modes 

It was possible for unsupported operating modes
to be accepted by the add_interface callback function.
This patch will block those modes until proper support
has been implemented for them.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ivo van Doorn 2008-08-06 16:18:31 +02:00 committed by John W. Linville
parent 8dbc1722a7
commit 0fc980392e
1 changed files with 36 additions and 16 deletions
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52
drivers/net/wireless/rt2x00/rt2x00mac.c
View File

@ -203,23 +203,43 @@ int rt2x00mac_add_interface(struct ieee80211_hw *hw,
!test_bit(DEVICE_STARTED, &rt2x00dev->flags))
return -ENODEV;
/*
* We don't support mixed combinations of sta and ap virtual
* interfaces. We can only add this interface when the rival
* interface count is 0.
*/
if ((conf->type == IEEE80211_IF_TYPE_AP && rt2x00dev->intf_sta_count) ||
(conf->type != IEEE80211_IF_TYPE_AP && rt2x00dev->intf_ap_count))
return -ENOBUFS;
switch (conf->type) {
case IEEE80211_IF_TYPE_AP:
/*
* We don't support mixed combinations of
* sta and ap interfaces.
*/
if (rt2x00dev->intf_sta_count)
return -ENOBUFS;
/*
* Check if we exceeded the maximum amount of supported interfaces.
*/
if ((conf->type == IEEE80211_IF_TYPE_AP &&
rt2x00dev->intf_ap_count >= rt2x00dev->ops->max_ap_intf) ||
(conf->type != IEEE80211_IF_TYPE_AP &&
rt2x00dev->intf_sta_count >= rt2x00dev->ops->max_sta_intf))
return -ENOBUFS;
/*
* Check if we exceeded the maximum amount
* of supported interfaces.
*/
if (rt2x00dev->intf_ap_count >= rt2x00dev->ops->max_ap_intf)
return -ENOBUFS;
break;
case IEEE80211_IF_TYPE_STA:
case IEEE80211_IF_TYPE_IBSS:
/*
* We don't support mixed combinations of
* sta and ap interfaces.
*/
if (rt2x00dev->intf_ap_count)
return -ENOBUFS;
/*
* Check if we exceeded the maximum amount
* of supported interfaces.
*/
if (rt2x00dev->intf_sta_count >= rt2x00dev->ops->max_sta_intf)
return -ENOBUFS;
break;
default:
return -EINVAL;
}
/*
* Loop through all beacon queues to find a free