// SPDX-License-Identifier: GPL-2.0
/*
 * Parts of this file are
 * Copyright (C) 2022-2023 Intel Corporation
 */
#include <linux/ieee80211.h>
#include <linux/export.h>
#include <net/cfg80211.h>
#include "nl80211.h"
#include "core.h"
#include "rdev-ops.h"


static int ___cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
                               struct net_device *dev, unsigned int link_id,
                               bool notify)
{
        struct wireless_dev *wdev = dev->ieee80211_ptr;
        int err;

        lockdep_assert_wiphy(wdev->wiphy);

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

        if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
            dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
                return -EOPNOTSUPP;

        if (!wdev->links[link_id].ap.beacon_interval)
                return -ENOENT;

        err = rdev_stop_ap(rdev, dev, link_id);
        if (!err) {
                wdev->conn_owner_nlportid = 0;
                wdev->links[link_id].ap.beacon_interval = 0;
                memset(&wdev->links[link_id].ap.chandef, 0,
                       sizeof(wdev->links[link_id].ap.chandef));
                wdev->u.ap.ssid_len = 0;
                rdev_set_qos_map(rdev, dev, NULL);
                if (notify)
                        nl80211_send_ap_stopped(wdev, link_id);

                /* Should we apply the grace period during beaconing interface
                 * shutdown also?
                 */
                cfg80211_sched_dfs_chan_update(rdev);
        }

        schedule_work(&cfg80211_disconnect_work);

        return err;
}

int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
                     struct net_device *dev, int link_id,
                     bool notify)
{
        unsigned int link;
        int ret = 0;

        if (link_id >= 0)
                return ___cfg80211_stop_ap(rdev, dev, link_id, notify);

        for_each_valid_link(dev->ieee80211_ptr, link) {
                int ret1 = ___cfg80211_stop_ap(rdev, dev, link, notify);

                if (ret1)
                        ret = ret1;
                /* try the next one also if one errored */
        }

        return ret;
}