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7b0a0e3c3a
In order to support multi-link operation with multiple links, start adding some APIs. The notable addition here is to have the link ID in a new nl80211 attribute, that will be used to differentiate the links in many nl80211 operations. So far, this patch adds the netlink NL80211_ATTR_MLO_LINK_ID attribute (as well as the NL80211_ATTR_MLO_LINKS attribute) and plugs it through the system in some places, checking the validity etc. along with other infrastructure needed for it. For now, I've decided to include only the over-the-air link ID in the API. I know we discussed that we eventually need to have to have other ways of identifying a link, but for local AP mode and auth/assoc commands as well as set_key etc. we'll use the OTA ID. Also included in this patch is some refactoring of the data structures in struct wireless_dev, splitting for the first time the data into type dependent pieces, to make reasoning about these things easier. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
89 lines
2.0 KiB
C
89 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Parts of this file are
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* Copyright (C) 2022 Intel Corporation
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*/
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#include <linux/ieee80211.h>
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#include <linux/export.h>
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#include <net/cfg80211.h>
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#include "nl80211.h"
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#include "core.h"
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#include "rdev-ops.h"
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static int ___cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
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struct net_device *dev, unsigned int link_id,
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bool notify)
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{
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struct wireless_dev *wdev = dev->ieee80211_ptr;
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int err;
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ASSERT_WDEV_LOCK(wdev);
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if (!rdev->ops->stop_ap)
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return -EOPNOTSUPP;
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if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
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dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
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return -EOPNOTSUPP;
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if (!wdev->links[link_id].ap.beacon_interval)
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return -ENOENT;
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err = rdev_stop_ap(rdev, dev, link_id);
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if (!err) {
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wdev->conn_owner_nlportid = 0;
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wdev->links[link_id].ap.beacon_interval = 0;
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memset(&wdev->links[link_id].ap.chandef, 0,
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sizeof(wdev->links[link_id].ap.chandef));
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wdev->u.ap.ssid_len = 0;
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rdev_set_qos_map(rdev, dev, NULL);
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if (notify)
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nl80211_send_ap_stopped(wdev);
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/* Should we apply the grace period during beaconing interface
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* shutdown also?
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*/
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cfg80211_sched_dfs_chan_update(rdev);
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}
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schedule_work(&cfg80211_disconnect_work);
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return err;
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}
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int __cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
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struct net_device *dev, int link_id,
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bool notify)
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{
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unsigned int link;
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int ret = 0;
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if (link_id >= 0)
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return ___cfg80211_stop_ap(rdev, dev, link_id, notify);
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for_each_valid_link(dev->ieee80211_ptr, link) {
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int ret1 = ___cfg80211_stop_ap(rdev, dev, link, notify);
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if (ret1)
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ret = ret1;
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/* try the next one also if one errored */
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}
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return ret;
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}
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int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
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struct net_device *dev, int link_id,
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bool notify)
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{
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struct wireless_dev *wdev = dev->ieee80211_ptr;
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int err;
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wdev_lock(wdev);
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err = __cfg80211_stop_ap(rdev, dev, link_id, notify);
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wdev_unlock(wdev);
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return err;
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}
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