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nl80211: Require auth type for NL80211_CMD_AUTHENTICATE

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NL80211_ATTR_AUTH_TYPE is a required parameter for
NL80211_CMD_AUTHENTICATE. We are currently (by chance) defaulting to
open system authentication if the attribute is not specified. It is
better to just reject the invalid command.

Signed-off-by: Jouni Malinen <j@w1.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Jouni Malinen 2009-03-27 20:52:47 +02:00 committed by John W. Linville
parent c0ed418977
commit 1778092e17
1 changed files with 7 additions and 7 deletions
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14
net/wireless/nl80211.c
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@ -2752,6 +2752,9 @@ static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
if (!info->attrs[NL80211_ATTR_MAC])
return -EINVAL;
if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
return -EINVAL;
rtnl_lock();
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
@ -2798,13 +2801,10 @@ static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
}
if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
req.auth_type =
nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
if (!nl80211_valid_auth_type(req.auth_type)) {
err = -EINVAL;
goto out;
}
req.auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
if (!nl80211_valid_auth_type(req.auth_type)) {
err = -EINVAL;
goto out;
}
err = drv->ops->auth(&drv->wiphy, dev, &req);