> +static int nl80211_tx_control_port(struct sk_buff *skb, struct genl_info *info)
> +{
> + struct cfg80211_registered_device *rdev = info->user_ptr[0];
> + struct net_device *dev = info->user_ptr[1];
> + struct wireless_dev *wdev = dev->ieee80211_ptr;
> + const u8 *buf;
> + size_t len;
> + u8 *dest;
> + u16 proto;
> + bool noencrypt;
> + int err;
> +
> + if (!wiphy_ext_feature_isset(&rdev->wiphy,
> + NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211))
> + return -EOPNOTSUPP;
> +
> + if (!rdev->ops->tx_control_port)
> + return -EOPNOTSUPP;
I wonder if maybe we should accept this command only from the socket
owner? Is there a use case for something else?
Actually, then again, that's awkward because doing events and commands
on the same socket doesn't mix all _that_ well. Perhaps we just need to
fix that problem in libnl or something and be done with it ...
johannes
