static int nl80211_associate(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 ieee80211_channel *chan;
	struct cfg80211_assoc_request req = {};
	const u8 *bssid, *ssid;
	int err, ssid_len = 0;

	if (dev->ieee80211_ptr->conn_owner_nlportid &&
	    dev->ieee80211_ptr->conn_owner_nlportid != info->snd_portid)
		return -EPERM;

	if (!info->attrs[NL80211_ATTR_MAC] ||
	    !info->attrs[NL80211_ATTR_SSID] ||
	    !info->attrs[NL80211_ATTR_WIPHY_FREQ])
		return -EINVAL;

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

	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
		return -EOPNOTSUPP;

	bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);

	chan = nl80211_get_valid_chan(&rdev->wiphy,
				      info->attrs[NL80211_ATTR_WIPHY_FREQ]);
	if (!chan)
		return -EINVAL;

	ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
	ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);

	if (info->attrs[NL80211_ATTR_IE]) {
		req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
		req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
	}

	if (info->attrs[NL80211_ATTR_USE_MFP]) {
		enum nl80211_mfp mfp =
			nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
		if (mfp == NL80211_MFP_REQUIRED)
			req.use_mfp = true;
		else if (mfp != NL80211_MFP_NO)
			return -EINVAL;
	}

	if (info->attrs[NL80211_ATTR_PREV_BSSID])
		req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);

	if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
		req.flags |= ASSOC_REQ_DISABLE_HT;

	if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
		memcpy(&req.ht_capa_mask,
		       nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
		       sizeof(req.ht_capa_mask));

	if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
		if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
			return -EINVAL;
		memcpy(&req.ht_capa,
		       nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
		       sizeof(req.ht_capa));
	}

	if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
		req.flags |= ASSOC_REQ_DISABLE_VHT;

	if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
		memcpy(&req.vht_capa_mask,
		       nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
		       sizeof(req.vht_capa_mask));

	if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
		if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
			return -EINVAL;
		memcpy(&req.vht_capa,
		       nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
		       sizeof(req.vht_capa));
	}

	if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
		if (!((rdev->wiphy.features &
			NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
		       (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
		    !wiphy_ext_feature_isset(&rdev->wiphy,
					     NL80211_EXT_FEATURE_RRM))
			return -EINVAL;
		req.flags |= ASSOC_REQ_USE_RRM;
	}

	if (info->attrs[NL80211_ATTR_FILS_KEK]) {
		req.fils_kek = nla_data(info->attrs[NL80211_ATTR_FILS_KEK]);
		req.fils_kek_len = nla_len(info->attrs[NL80211_ATTR_FILS_KEK]);
		if (!info->attrs[NL80211_ATTR_FILS_NONCES])
			return -EINVAL;
		req.fils_nonces =
			nla_data(info->attrs[NL80211_ATTR_FILS_NONCES]);
	}

	err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
	if (!err) {
		wdev_lock(dev->ieee80211_ptr);

		err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
					  ssid, ssid_len, &req);

		if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
			dev->ieee80211_ptr->conn_owner_nlportid =
				info->snd_portid;
			memcpy(dev->ieee80211_ptr->disconnect_bssid,
			       bssid, ETH_ALEN);
		}

		wdev_unlock(dev->ieee80211_ptr);
	}

	return err;
}
static int nl80211_associate(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 ieee80211_channel *chan;
	struct cfg80211_assoc_request req = {};
	const u8 *bssid, *ssid;
	int err, ssid_len = 0;

	if (dev->ieee80211_ptr->conn_owner_nlportid &&
	    dev->ieee80211_ptr->conn_owner_nlportid != info->snd_portid)
		return -EPERM;

	if (!info->attrs[NL80211_ATTR_MAC] ||
	    !info->attrs[NL80211_ATTR_SSID] ||
	    !info->attrs[NL80211_ATTR_WIPHY_FREQ])
		return -EINVAL;

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

	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
		return -EOPNOTSUPP;

	bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);

	chan = nl80211_get_valid_chan(&rdev->wiphy,
				      info->attrs[NL80211_ATTR_WIPHY_FREQ]);
	if (!chan)
		return -EINVAL;

	ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
	ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);

	if (info->attrs[NL80211_ATTR_IE]) {
		req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
		req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
	}

	if (info->attrs[NL80211_ATTR_USE_MFP]) {
		enum nl80211_mfp mfp =
			nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
		if (mfp == NL80211_MFP_REQUIRED)
			req.use_mfp = true;
		else if (mfp != NL80211_MFP_NO)
			return -EINVAL;
	}

	if (info->attrs[NL80211_ATTR_PREV_BSSID])
		req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);

	if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
		req.flags |= ASSOC_REQ_DISABLE_HT;

	if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
		memcpy(&req.ht_capa_mask,
		       nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
		       sizeof(req.ht_capa_mask));

	if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
		if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
			return -EINVAL;
		memcpy(&req.ht_capa,
		       nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
		       sizeof(req.ht_capa));
	}

	if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
		req.flags |= ASSOC_REQ_DISABLE_VHT;

	if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
		memcpy(&req.vht_capa_mask,
		       nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
		       sizeof(req.vht_capa_mask));

	if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
		if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
			return -EINVAL;
		memcpy(&req.vht_capa,
		       nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
		       sizeof(req.vht_capa));
	}

	if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
		if (!((rdev->wiphy.features &
			NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
		       (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
		    !wiphy_ext_feature_isset(&rdev->wiphy,
					     NL80211_EXT_FEATURE_RRM))
			return -EINVAL;
		req.flags |= ASSOC_REQ_USE_RRM;
	}

	if (info->attrs[NL80211_ATTR_FILS_KEK]) {
		req.fils_kek = nla_data(info->attrs[NL80211_ATTR_FILS_KEK]);
		req.fils_kek_len = nla_len(info->attrs[NL80211_ATTR_FILS_KEK]);
		if (!info->attrs[NL80211_ATTR_FILS_NONCES])
			return -EINVAL;
		req.fils_nonces =
			nla_data(info->attrs[NL80211_ATTR_FILS_NONCES]);
	}

	err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
	if (!err) {
		wdev_lock(dev->ieee80211_ptr);

		err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
					  ssid, ssid_len, &req);

		if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
			dev->ieee80211_ptr->conn_owner_nlportid =
				info->snd_portid;
			memcpy(dev->ieee80211_ptr->disconnect_bssid,
			       bssid, ETH_ALEN);
		}

		wdev_unlock(dev->ieee80211_ptr);
	}

	return err;
}