
static int nl80211_register_mgmt(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];
	u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;

	if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
		return -EINVAL;

	if (info->attrs[NL80211_ATTR_FRAME_TYPE])
		frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);

	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
		return -EOPNOTSUPP;

	/* not much point in registering if we can't reply */
	if (!rdev->ops->mgmt_tx)
		return -EOPNOTSUPP;

	return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
			frame_type,
			nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
			nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));

static int nl80211_register_mgmt(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];
	u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;

	if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
		return -EINVAL;

	if (info->attrs[NL80211_ATTR_FRAME_TYPE])
		frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);

	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
		return -EOPNOTSUPP;

	 
	if (!rdev->ops->mgmt_tx)
		return -EOPNOTSUPP;

	return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
			frame_type,
			nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
			nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));