linux/net/wireless/ap.c
Alvin Šipraga cba7217a92 wifi: nl80211: add MLO_LINK_ID to CMD_STOP_AP event
nl80211_send_ap_stopped() can be called multiple times on the same
netdev for each link when using Multi-Link Operation. Add the
MLO_LINK_ID attribute to the event to allow userspace to distinguish
which link the event is for.

Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Link: https://lore.kernel.org/r/20230128125844.2407135-2-alvin@pqrs.dk
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-02-14 12:09:17 +01:00

89 lines
2.0 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* Parts of this file are
* Copyright (C) 2022 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;
ASSERT_WDEV_LOCK(wdev);
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;
}
int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
struct net_device *dev, int link_id,
bool notify)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
int err;
wdev_lock(wdev);
err = __cfg80211_stop_ap(rdev, dev, link_id, notify);
wdev_unlock(wdev);
return err;
}