Initial commit: OpenHarmony-v4.0-ReleaseOpenHarmony-v4.0-Release

1 files changed, 968 insertions, 0 deletions

diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
new file mode 100644
index 000000000..6dcfc5a34
--- /dev/null
+++ b/net/wireless/mlme.c
@@ -0,0 +1,968 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * cfg80211 MLME SAP interface
+ *
+ * Copyright (c) 2009, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2015           Intel Deutschland GmbH
+ * Copyright (C) 2019 Intel Corporation
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/etherdevice.h>
+#include <linux/netdevice.h>
+#include <linux/nl80211.h>
+#include <linux/slab.h>
+#include <linux/wireless.h>
+#include <net/cfg80211.h>
+#include <net/iw_handler.h>
+#include "core.h"
+#include "nl80211.h"
+#include "rdev-ops.h"
+
+
+void cfg80211_rx_assoc_resp(struct net_device *dev, struct cfg80211_bss *bss,
+                            const u8 *buf, size_t len, int uapsd_queues,
+                            const u8 *req_ies, size_t req_ies_len)
+{
+        struct wireless_dev *wdev = dev->ieee80211_ptr;
+        struct wiphy *wiphy = wdev->wiphy;
+        struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
+        struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
+        struct cfg80211_connect_resp_params cr;
+        const u8 *resp_ie = mgmt->u.assoc_resp.variable;
+        size_t resp_ie_len = len - offsetof(struct ieee80211_mgmt,
+                                            u.assoc_resp.variable);
+
+        if (bss->channel->band == NL80211_BAND_S1GHZ) {
+                resp_ie = (u8 *)&mgmt->u.s1g_assoc_resp.variable;
+                resp_ie_len = len - offsetof(struct ieee80211_mgmt,
+                                             u.s1g_assoc_resp.variable);
+        }
+
+        memset(&cr, 0, sizeof(cr));
+        cr.status = (int)le16_to_cpu(mgmt->u.assoc_resp.status_code);
+        cr.bssid = mgmt->bssid;
+        cr.bss = bss;
+        cr.req_ie = req_ies;
+        cr.req_ie_len = req_ies_len;
+        cr.resp_ie = resp_ie;
+        cr.resp_ie_len = resp_ie_len;
+        cr.timeout_reason = NL80211_TIMEOUT_UNSPECIFIED;
+
+        trace_cfg80211_send_rx_assoc(dev, bss);
+
+        /*
+         * This is a bit of a hack, we don't notify userspace of
+         * a (re-)association reply if we tried to send a reassoc
+         * and got a reject -- we only try again with an assoc
+         * frame instead of reassoc.
+         */
+        if (cfg80211_sme_rx_assoc_resp(wdev, cr.status)) {
+                cfg80211_unhold_bss(bss_from_pub(bss));
+                cfg80211_put_bss(wiphy, bss);
+                return;
+        }
+
+        nl80211_send_rx_assoc(rdev, dev, buf, len, GFP_KERNEL, uapsd_queues,
+                              req_ies, req_ies_len);
+        /* update current_bss etc., consumes the bss reference */
+        __cfg80211_connect_result(dev, &cr, cr.status == WLAN_STATUS_SUCCESS);
+}
+EXPORT_SYMBOL(cfg80211_rx_assoc_resp);
+
+static void cfg80211_process_auth(struct wireless_dev *wdev,
+                                  const u8 *buf, size_t len)
+{
+        struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
+
+        nl80211_send_rx_auth(rdev, wdev->netdev, buf, len, GFP_KERNEL);
+        cfg80211_sme_rx_auth(wdev, buf, len);
+}
+
+static void cfg80211_process_deauth(struct wireless_dev *wdev,
+                                    const u8 *buf, size_t len)
+{
+        struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
+        struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
+        const u8 *bssid = mgmt->bssid;
+        u16 reason_code = le16_to_cpu(mgmt->u.deauth.reason_code);
+        bool from_ap = !ether_addr_equal(mgmt->sa, wdev->netdev->dev_addr);
+
+        nl80211_send_deauth(rdev, wdev->netdev, buf, len, GFP_KERNEL);
+
+        if (!wdev->current_bss ||
+            !ether_addr_equal(wdev->current_bss->pub.bssid, bssid))
+                return;
+
+        __cfg80211_disconnected(wdev->netdev, NULL, 0, reason_code, from_ap);
+        cfg80211_sme_deauth(wdev);
+}
+
+static void cfg80211_process_disassoc(struct wireless_dev *wdev,
+                                      const u8 *buf, size_t len)
+{
+        struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
+        struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
+        const u8 *bssid = mgmt->bssid;
+        u16 reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
+        bool from_ap = !ether_addr_equal(mgmt->sa, wdev->netdev->dev_addr);
+
+        nl80211_send_disassoc(rdev, wdev->netdev, buf, len, GFP_KERNEL);
+
+        if (WARN_ON(!wdev->current_bss ||
+                    !ether_addr_equal(wdev->current_bss->pub.bssid, bssid)))
+                return;
+
+        __cfg80211_disconnected(wdev->netdev, NULL, 0, reason_code, from_ap);
+        cfg80211_sme_disassoc(wdev);
+}
+
+void cfg80211_rx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len)
+{
+        struct wireless_dev *wdev = dev->ieee80211_ptr;
+        struct ieee80211_mgmt *mgmt = (void *)buf;
+
+        ASSERT_WDEV_LOCK(wdev);
+
+        trace_cfg80211_rx_mlme_mgmt(dev, buf, len);
+
+        if (WARN_ON(len < 2))
+                return;
+
+        if (ieee80211_is_auth(mgmt->frame_control))
+                cfg80211_process_auth(wdev, buf, len);
+        else if (ieee80211_is_deauth(mgmt->frame_control))
+                cfg80211_process_deauth(wdev, buf, len);
+        else if (ieee80211_is_disassoc(mgmt->frame_control))
+                cfg80211_process_disassoc(wdev, buf, len);
+}
+EXPORT_SYMBOL(cfg80211_rx_mlme_mgmt);
+
+void cfg80211_auth_timeout(struct net_device *dev, const u8 *addr)
+{
+        struct wireless_dev *wdev = dev->ieee80211_ptr;
+        struct wiphy *wiphy = wdev->wiphy;
+        struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
+
+        trace_cfg80211_send_auth_timeout(dev, addr);
+
+        nl80211_send_auth_timeout(rdev, dev, addr, GFP_KERNEL);
+        cfg80211_sme_auth_timeout(wdev);
+}
+EXPORT_SYMBOL(cfg80211_auth_timeout);
+
+void cfg80211_assoc_timeout(struct net_device *dev, struct cfg80211_bss *bss)
+{
+        struct wireless_dev *wdev = dev->ieee80211_ptr;
+        struct wiphy *wiphy = wdev->wiphy;
+        struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
+
+        trace_cfg80211_send_assoc_timeout(dev, bss->bssid);
+
+        nl80211_send_assoc_timeout(rdev, dev, bss->bssid, GFP_KERNEL);
+        cfg80211_sme_assoc_timeout(wdev);
+
+        cfg80211_unhold_bss(bss_from_pub(bss));
+        cfg80211_put_bss(wiphy, bss);
+}
+EXPORT_SYMBOL(cfg80211_assoc_timeout);
+
+void cfg80211_abandon_assoc(struct net_device *dev, struct cfg80211_bss *bss)
+{
+        struct wireless_dev *wdev = dev->ieee80211_ptr;
+        struct wiphy *wiphy = wdev->wiphy;
+
+        cfg80211_sme_abandon_assoc(wdev);
+
+        cfg80211_unhold_bss(bss_from_pub(bss));
+        cfg80211_put_bss(wiphy, bss);
+}
+EXPORT_SYMBOL(cfg80211_abandon_assoc);
+
+void cfg80211_tx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len)
+{
+        struct wireless_dev *wdev = dev->ieee80211_ptr;
+        struct ieee80211_mgmt *mgmt = (void *)buf;
+
+        ASSERT_WDEV_LOCK(wdev);
+
+        trace_cfg80211_tx_mlme_mgmt(dev, buf, len);
+
+        if (WARN_ON(len < 2))
+                return;
+
+        if (ieee80211_is_deauth(mgmt->frame_control))
+                cfg80211_process_deauth(wdev, buf, len);
+        else
+                cfg80211_process_disassoc(wdev, buf, len);
+}
+EXPORT_SYMBOL(cfg80211_tx_mlme_mgmt);
+
+void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
+                                  enum nl80211_key_type key_type, int key_id,
+                                  const u8 *tsc, gfp_t gfp)
+{
+        struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
+        struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
+#ifdef CONFIG_CFG80211_WEXT
+        union iwreq_data wrqu;
+        char *buf = kmalloc(128, gfp);
+
+        if (buf) {
+                sprintf(buf, "MLME-MICHAELMICFAILURE.indication("
+                        "keyid=%d %scast addr=%pM)", key_id,
+                        key_type == NL80211_KEYTYPE_GROUP ? "broad" : "uni",
+                        addr);
+                memset(&wrqu, 0, sizeof(wrqu));
+                wrqu.data.length = strlen(buf);
+                wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf);
+                kfree(buf);
+        }
+#endif
+
+        trace_cfg80211_michael_mic_failure(dev, addr, key_type, key_id, tsc);
+        nl80211_michael_mic_failure(rdev, dev, addr, key_type, key_id, tsc, gfp);
+}
+EXPORT_SYMBOL(cfg80211_michael_mic_failure);
+
+/* some MLME handling for userspace SME */
+int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
+                       struct net_device *dev,
+                       struct ieee80211_channel *chan,
+                       enum nl80211_auth_type auth_type,
+                       const u8 *bssid,
+                       const u8 *ssid, int ssid_len,
+                       const u8 *ie, int ie_len,
+                       const u8 *key, int key_len, int key_idx,
+                       const u8 *auth_data, int auth_data_len)
+{
+        struct wireless_dev *wdev = dev->ieee80211_ptr;
+        struct cfg80211_auth_request req = {
+                .ie = ie,
+                .ie_len = ie_len,
+                .auth_data = auth_data,
+                .auth_data_len = auth_data_len,
+                .auth_type = auth_type,
+                .key = key,
+                .key_len = key_len,
+                .key_idx = key_idx,
+        };
+        int err;
+
+        ASSERT_WDEV_LOCK(wdev);
+
+        if (auth_type == NL80211_AUTHTYPE_SHARED_KEY)
+                if (!key || !key_len || key_idx < 0 || key_idx > 3)
+                        return -EINVAL;
+
+        if (wdev->current_bss &&
+            ether_addr_equal(bssid, wdev->current_bss->pub.bssid))
+                return -EALREADY;
+
+        req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len,
+                                   IEEE80211_BSS_TYPE_ESS,
+                                   IEEE80211_PRIVACY_ANY);
+        if (!req.bss)
+                return -ENOENT;
+
+        err = rdev_auth(rdev, dev, &req);
+
+        cfg80211_put_bss(&rdev->wiphy, req.bss);
+        return err;
+}
+
+/*  Do a logical ht_capa &= ht_capa_mask.  */
+void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa,
+                               const struct ieee80211_ht_cap *ht_capa_mask)
+{
+        int i;
+        u8 *p1, *p2;
+        if (!ht_capa_mask) {
+                memset(ht_capa, 0, sizeof(*ht_capa));
+                return;
+        }
+
+        p1 = (u8*)(ht_capa);
+        p2 = (u8*)(ht_capa_mask);
+        for (i = 0; i < sizeof(*ht_capa); i++)
+                p1[i] &= p2[i];
+}
+
+/*  Do a logical vht_capa &= vht_capa_mask.  */
+void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa,
+                                const struct ieee80211_vht_cap *vht_capa_mask)
+{
+        int i;
+        u8 *p1, *p2;
+        if (!vht_capa_mask) {
+                memset(vht_capa, 0, sizeof(*vht_capa));
+                return;
+        }
+
+        p1 = (u8*)(vht_capa);
+        p2 = (u8*)(vht_capa_mask);
+        for (i = 0; i < sizeof(*vht_capa); i++)
+                p1[i] &= p2[i];
+}
+
+int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
+                        struct net_device *dev,
+                        struct ieee80211_channel *chan,
+                        const u8 *bssid,
+                        const u8 *ssid, int ssid_len,
+                        struct cfg80211_assoc_request *req)
+{
+        struct wireless_dev *wdev = dev->ieee80211_ptr;
+        int err;
+
+        ASSERT_WDEV_LOCK(wdev);
+
+        if (wdev->current_bss &&
+            (!req->prev_bssid || !ether_addr_equal(wdev->current_bss->pub.bssid,
+                                                   req->prev_bssid)))
+                return -EALREADY;
+
+        cfg80211_oper_and_ht_capa(&req->ht_capa_mask,
+                                  rdev->wiphy.ht_capa_mod_mask);
+        cfg80211_oper_and_vht_capa(&req->vht_capa_mask,
+                                   rdev->wiphy.vht_capa_mod_mask);
+
+        req->bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len,
+                                    IEEE80211_BSS_TYPE_ESS,
+                                    IEEE80211_PRIVACY_ANY);
+        if (!req->bss)
+                return -ENOENT;
+
+        err = rdev_assoc(rdev, dev, req);
+        if (!err)
+                cfg80211_hold_bss(bss_from_pub(req->bss));
+        else
+                cfg80211_put_bss(&rdev->wiphy, req->bss);
+
+        return err;
+}
+
+int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
+                         struct net_device *dev, const u8 *bssid,
+                         const u8 *ie, int ie_len, u16 reason,
+                         bool local_state_change)
+{
+        struct wireless_dev *wdev = dev->ieee80211_ptr;
+        struct cfg80211_deauth_request req = {
+                .bssid = bssid,
+                .reason_code = reason,
+                .ie = ie,
+                .ie_len = ie_len,
+                .local_state_change = local_state_change,
+        };
+
+        ASSERT_WDEV_LOCK(wdev);
+
+        if (local_state_change &&
+            (!wdev->current_bss ||
+             !ether_addr_equal(wdev->current_bss->pub.bssid, bssid)))
+                return 0;
+
+        if (ether_addr_equal(wdev->disconnect_bssid, bssid) ||
+            (wdev->current_bss &&
+             ether_addr_equal(wdev->current_bss->pub.bssid, bssid)))
+                wdev->conn_owner_nlportid = 0;
+
+        return rdev_deauth(rdev, dev, &req);
+}
+
+int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
+                           struct net_device *dev, const u8 *bssid,
+                           const u8 *ie, int ie_len, u16 reason,
+                           bool local_state_change)
+{
+        struct wireless_dev *wdev = dev->ieee80211_ptr;
+        struct cfg80211_disassoc_request req = {
+                .reason_code = reason,
+                .local_state_change = local_state_change,
+                .ie = ie,
+                .ie_len = ie_len,
+        };
+        int err;
+
+        ASSERT_WDEV_LOCK(wdev);
+
+        if (!wdev->current_bss)
+                return -ENOTCONN;
+
+        if (ether_addr_equal(wdev->current_bss->pub.bssid, bssid))
+                req.bss = &wdev->current_bss->pub;
+        else
+                return -ENOTCONN;
+
+        err = rdev_disassoc(rdev, dev, &req);
+        if (err)
+                return err;
+
+        /* driver should have reported the disassoc */
+        WARN_ON(wdev->current_bss);
+        return 0;
+}
+
+void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
+                        struct net_device *dev)
+{
+        struct wireless_dev *wdev = dev->ieee80211_ptr;
+        u8 bssid[ETH_ALEN];
+
+        ASSERT_WDEV_LOCK(wdev);
+
+        if (!rdev->ops->deauth)
+                return;
+
+        if (!wdev->current_bss)
+                return;
+
+        memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
+        cfg80211_mlme_deauth(rdev, dev, bssid, NULL, 0,
+                             WLAN_REASON_DEAUTH_LEAVING, false);
+}
+
+struct cfg80211_mgmt_registration {
+        struct list_head list;
+        struct wireless_dev *wdev;
+
+        u32 nlportid;
+
+        int match_len;
+
+        __le16 frame_type;
+
+        bool multicast_rx;
+
+        u8 match[];
+};
+
+static void cfg80211_mgmt_registrations_update(struct wireless_dev *wdev)
+{
+        struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
+        struct wireless_dev *tmp;
+        struct cfg80211_mgmt_registration *reg;
+        struct mgmt_frame_regs upd = {};
+
+        ASSERT_RTNL();
+
+        spin_lock_bh(&rdev->mgmt_registrations_lock);
+        if (!wdev->mgmt_registrations_need_update) {
+                spin_unlock_bh(&rdev->mgmt_registrations_lock);
+                return;
+        }
+
+        rcu_read_lock();
+        list_for_each_entry_rcu(tmp, &rdev->wiphy.wdev_list, list) {
+                list_for_each_entry(reg, &tmp->mgmt_registrations, list) {
+                        u32 mask = BIT(le16_to_cpu(reg->frame_type) >> 4);
+                        u32 mcast_mask = 0;
+
+                        if (reg->multicast_rx)
+                                mcast_mask = mask;
+
+                        upd.global_stypes |= mask;
+                        upd.global_mcast_stypes |= mcast_mask;
+
+                        if (tmp == wdev) {
+                                upd.interface_stypes |= mask;
+                                upd.interface_mcast_stypes |= mcast_mask;
+                        }
+                }
+        }
+        rcu_read_unlock();
+
+        wdev->mgmt_registrations_need_update = 0;
+        spin_unlock_bh(&rdev->mgmt_registrations_lock);
+
+        rdev_update_mgmt_frame_registrations(rdev, wdev, &upd);
+}
+
+void cfg80211_mgmt_registrations_update_wk(struct work_struct *wk)
+{
+        struct cfg80211_registered_device *rdev;
+        struct wireless_dev *wdev;
+
+        rdev = container_of(wk, struct cfg80211_registered_device,
+                            mgmt_registrations_update_wk);
+
+        rtnl_lock();
+        list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list)
+                cfg80211_mgmt_registrations_update(wdev);
+        rtnl_unlock();
+}
+
+int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_portid,
+                                u16 frame_type, const u8 *match_data,
+                                int match_len, bool multicast_rx,
+                                struct netlink_ext_ack *extack)
+{
+        struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
+        struct cfg80211_mgmt_registration *reg, *nreg;
+        int err = 0;
+        u16 mgmt_type;
+        bool update_multicast = false;
+
+        if (!wdev->wiphy->mgmt_stypes)
+                return -EOPNOTSUPP;
+
+        if ((frame_type & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT) {
+                NL_SET_ERR_MSG(extack, "frame type not management");
+                return -EINVAL;
+        }
+
+        if (frame_type & ~(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) {
+                NL_SET_ERR_MSG(extack, "Invalid frame type");
+                return -EINVAL;
+        }
+
+        mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4;
+        if (!(wdev->wiphy->mgmt_stypes[wdev->iftype].rx & BIT(mgmt_type))) {
+                NL_SET_ERR_MSG(extack,
+                               "Registration to specific type not supported");
+                return -EINVAL;
+        }
+
+        /*
+         * To support Pre Association Security Negotiation (PASN), registration
+         * for authentication frames should be supported. However, as some
+         * versions of the user space daemons wrongly register to all types of
+         * authentication frames (which might result in unexpected behavior)
+         * allow such registration if the request is for a specific
+         * authentication algorithm number.
+         */
+        if (wdev->iftype == NL80211_IFTYPE_STATION &&
+            (frame_type & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_AUTH &&
+            !(match_data && match_len >= 2)) {
+                NL_SET_ERR_MSG(extack,
+                               "Authentication algorithm number required");
+                return -EINVAL;
+        }
+
+        nreg = kzalloc(sizeof(*reg) + match_len, GFP_KERNEL);
+        if (!nreg)
+                return -ENOMEM;
+
+        spin_lock_bh(&rdev->mgmt_registrations_lock);
+
+        list_for_each_entry(reg, &wdev->mgmt_registrations, list) {
+                int mlen = min(match_len, reg->match_len);
+
+                if (frame_type != le16_to_cpu(reg->frame_type))
+                        continue;
+
+                if (memcmp(reg->match, match_data, mlen) == 0) {
+                        if (reg->multicast_rx != multicast_rx) {
+                                update_multicast = true;
+                                reg->multicast_rx = multicast_rx;
+                                break;
+                        }
+                        NL_SET_ERR_MSG(extack, "Match already configured");
+                        err = -EALREADY;
+                        break;
+                }
+        }
+
+        if (err)
+                goto out;
+
+        if (update_multicast) {
+                kfree(nreg);
+        } else {
+                memcpy(nreg->match, match_data, match_len);
+                nreg->match_len = match_len;
+                nreg->nlportid = snd_portid;
+                nreg->frame_type = cpu_to_le16(frame_type);
+                nreg->wdev = wdev;
+                nreg->multicast_rx = multicast_rx;
+                list_add(&nreg->list, &wdev->mgmt_registrations);
+        }
+        wdev->mgmt_registrations_need_update = 1;
+        spin_unlock_bh(&rdev->mgmt_registrations_lock);
+
+        cfg80211_mgmt_registrations_update(wdev);
+
+        return 0;
+
+ out:
+        kfree(nreg);
+        spin_unlock_bh(&rdev->mgmt_registrations_lock);
+
+        return err;
+}
+
+void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlportid)
+{
+        struct wiphy *wiphy = wdev->wiphy;
+        struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
+        struct cfg80211_mgmt_registration *reg, *tmp;
+
+        spin_lock_bh(&rdev->mgmt_registrations_lock);
+
+        list_for_each_entry_safe(reg, tmp, &wdev->mgmt_registrations, list) {
+                if (reg->nlportid != nlportid)
+                        continue;
+
+                list_del(&reg->list);
+                kfree(reg);
+
+                wdev->mgmt_registrations_need_update = 1;
+                schedule_work(&rdev->mgmt_registrations_update_wk);
+        }
+
+        spin_unlock_bh(&rdev->mgmt_registrations_lock);
+
+        if (nlportid && rdev->crit_proto_nlportid == nlportid) {
+                rdev->crit_proto_nlportid = 0;
+                rdev_crit_proto_stop(rdev, wdev);
+        }
+
+        if (nlportid == wdev->ap_unexpected_nlportid)
+                wdev->ap_unexpected_nlportid = 0;
+}
+
+void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev)
+{
+        struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
+        struct cfg80211_mgmt_registration *reg, *tmp;
+
+        spin_lock_bh(&rdev->mgmt_registrations_lock);
+        list_for_each_entry_safe(reg, tmp, &wdev->mgmt_registrations, list) {
+                list_del(&reg->list);
+                kfree(reg);
+        }
+        wdev->mgmt_registrations_need_update = 1;
+        spin_unlock_bh(&rdev->mgmt_registrations_lock);
+
+        cfg80211_mgmt_registrations_update(wdev);
+}
+
+int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
+                          struct wireless_dev *wdev,
+                          struct cfg80211_mgmt_tx_params *params, u64 *cookie)
+{
+        const struct ieee80211_mgmt *mgmt;
+        u16 stype;
+
+        if (!wdev->wiphy->mgmt_stypes)
+                return -EOPNOTSUPP;
+
+        if (!rdev->ops->mgmt_tx)
+                return -EOPNOTSUPP;
+
+        if (params->len < 24 + 1)
+                return -EINVAL;
+
+        mgmt = (const struct ieee80211_mgmt *)params->buf;
+
+        if (!ieee80211_is_mgmt(mgmt->frame_control))
+                return -EINVAL;
+
+        stype = le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE;
+        if (!(wdev->wiphy->mgmt_stypes[wdev->iftype].tx & BIT(stype >> 4)))
+                return -EINVAL;
+
+        if (ieee80211_is_action(mgmt->frame_control) &&
+            mgmt->u.action.category != WLAN_CATEGORY_PUBLIC) {
+                int err = 0;
+
+                wdev_lock(wdev);
+
+                switch (wdev->iftype) {
+                case NL80211_IFTYPE_ADHOC:
+                case NL80211_IFTYPE_STATION:
+                case NL80211_IFTYPE_P2P_CLIENT:
+                        if (!wdev->current_bss) {
+                                err = -ENOTCONN;
+                                break;
+                        }
+
+                        if (!ether_addr_equal(wdev->current_bss->pub.bssid,
+                                              mgmt->bssid)) {
+                                err = -ENOTCONN;
+                                break;
+                        }
+
+                        /*
+                         * check for IBSS DA must be done by driver as
+                         * cfg80211 doesn't track the stations
+                         */
+                        if (wdev->iftype == NL80211_IFTYPE_ADHOC)
+                                break;
+
+                        /* for station, check that DA is the AP */
+                        if (!ether_addr_equal(wdev->current_bss->pub.bssid,
+                                              mgmt->da)) {
+                                err = -ENOTCONN;
+                                break;
+                        }
+                        break;
+                case NL80211_IFTYPE_AP:
+                case NL80211_IFTYPE_P2P_GO:
+                case NL80211_IFTYPE_AP_VLAN:
+                        if (!ether_addr_equal(mgmt->bssid, wdev_address(wdev)))
+                                err = -EINVAL;
+                        break;
+                case NL80211_IFTYPE_MESH_POINT:
+                        if (!ether_addr_equal(mgmt->sa, mgmt->bssid)) {
+                                err = -EINVAL;
+                                break;
+                        }
+                        /*
+                         * check for mesh DA must be done by driver as
+                         * cfg80211 doesn't track the stations
+                         */
+                        break;
+                case NL80211_IFTYPE_P2P_DEVICE:
+                        /*
+                         * fall through, P2P device only supports
+                         * public action frames
+                         */
+                case NL80211_IFTYPE_NAN:
+                default:
+                        err = -EOPNOTSUPP;
+                        break;
+                }
+                wdev_unlock(wdev);
+
+                if (err)
+                        return err;
+        }
+
+        if (!ether_addr_equal(mgmt->sa, wdev_address(wdev))) {
+                /* Allow random TA to be used with Public Action frames if the
+                 * driver has indicated support for this. Otherwise, only allow
+                 * the local address to be used.
+                 */
+                if (!ieee80211_is_action(mgmt->frame_control) ||
+                    mgmt->u.action.category != WLAN_CATEGORY_PUBLIC)
+                        return -EINVAL;
+                if (!wdev->current_bss &&
+                    !wiphy_ext_feature_isset(
+                            &rdev->wiphy,
+                            NL80211_EXT_FEATURE_MGMT_TX_RANDOM_TA))
+                        return -EINVAL;
+                if (wdev->current_bss &&
+                    !wiphy_ext_feature_isset(
+                            &rdev->wiphy,
+                            NL80211_EXT_FEATURE_MGMT_TX_RANDOM_TA_CONNECTED))
+                        return -EINVAL;
+        }
+
+        /* Transmit the Action frame as requested by user space */
+        return rdev_mgmt_tx(rdev, wdev, params, cookie);
+}
+
+bool cfg80211_rx_mgmt_khz(struct wireless_dev *wdev, int freq, int sig_dbm,
+                          const u8 *buf, size_t len, u32 flags)
+{
+        struct wiphy *wiphy = wdev->wiphy;
+        struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
+        struct cfg80211_mgmt_registration *reg;
+        const struct ieee80211_txrx_stypes *stypes =
+                &wiphy->mgmt_stypes[wdev->iftype];
+        struct ieee80211_mgmt *mgmt = (void *)buf;
+        const u8 *data;
+        int data_len;
+        bool result = false;
+        __le16 ftype = mgmt->frame_control &
+                cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE);
+        u16 stype;
+
+        trace_cfg80211_rx_mgmt(wdev, freq, sig_dbm);
+        stype = (le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE) >> 4;
+
+        if (!(stypes->rx & BIT(stype))) {
+                trace_cfg80211_return_bool(false);
+                return false;
+        }
+
+        data = buf + ieee80211_hdrlen(mgmt->frame_control);
+        data_len = len - ieee80211_hdrlen(mgmt->frame_control);
+
+        spin_lock_bh(&rdev->mgmt_registrations_lock);
+
+        list_for_each_entry(reg, &wdev->mgmt_registrations, list) {
+                if (reg->frame_type != ftype)
+                        continue;
+
+                if (reg->match_len > data_len)
+                        continue;
+
+                if (memcmp(reg->match, data, reg->match_len))
+                        continue;
+
+                /* found match! */
+
+                /* Indicate the received Action frame to user space */
+                if (nl80211_send_mgmt(rdev, wdev, reg->nlportid,
+                                      freq, sig_dbm,
+                                      buf, len, flags, GFP_ATOMIC))
+                        continue;
+
+                result = true;
+                break;
+        }
+
+        spin_unlock_bh(&rdev->mgmt_registrations_lock);
+
+        trace_cfg80211_return_bool(result);
+        return result;
+}
+EXPORT_SYMBOL(cfg80211_rx_mgmt_khz);
+
+void cfg80211_sched_dfs_chan_update(struct cfg80211_registered_device *rdev)
+{
+        cancel_delayed_work(&rdev->dfs_update_channels_wk);
+        queue_delayed_work(cfg80211_wq, &rdev->dfs_update_channels_wk, 0);
+}
+
+void cfg80211_dfs_channels_update_work(struct work_struct *work)
+{
+        struct delayed_work *delayed_work = to_delayed_work(work);
+        struct cfg80211_registered_device *rdev;
+        struct cfg80211_chan_def chandef;
+        struct ieee80211_supported_band *sband;
+        struct ieee80211_channel *c;
+        struct wiphy *wiphy;
+        bool check_again = false;
+        unsigned long timeout, next_time = 0;
+        unsigned long time_dfs_update;
+        enum nl80211_radar_event radar_event;
+        int bandid, i;
+
+        rdev = container_of(delayed_work, struct cfg80211_registered_device,
+                            dfs_update_channels_wk);
+        wiphy = &rdev->wiphy;
+
+        rtnl_lock();
+        for (bandid = 0; bandid < NUM_NL80211_BANDS; bandid++) {
+                sband = wiphy->bands[bandid];
+                if (!sband)
+                        continue;
+
+                for (i = 0; i < sband->n_channels; i++) {
+                        c = &sband->channels[i];
+
+                        if (!(c->flags & IEEE80211_CHAN_RADAR))
+                                continue;
+
+                        if (c->dfs_state != NL80211_DFS_UNAVAILABLE &&
+                            c->dfs_state != NL80211_DFS_AVAILABLE)
+                                continue;
+
+                        if (c->dfs_state == NL80211_DFS_UNAVAILABLE) {
+                                time_dfs_update = IEEE80211_DFS_MIN_NOP_TIME_MS;
+                                radar_event = NL80211_RADAR_NOP_FINISHED;
+                        } else {
+                                if (regulatory_pre_cac_allowed(wiphy) ||
+                                    cfg80211_any_wiphy_oper_chan(wiphy, c))
+                                        continue;
+
+                                time_dfs_update = REG_PRE_CAC_EXPIRY_GRACE_MS;
+                                radar_event = NL80211_RADAR_PRE_CAC_EXPIRED;
+                        }
+
+                        timeout = c->dfs_state_entered +
+                                  msecs_to_jiffies(time_dfs_update);
+
+                        if (time_after_eq(jiffies, timeout)) {
+                                c->dfs_state = NL80211_DFS_USABLE;
+                                c->dfs_state_entered = jiffies;
+
+                                cfg80211_chandef_create(&chandef, c,
+                                                        NL80211_CHAN_NO_HT);
+
+                                nl80211_radar_notify(rdev, &chandef,
+                                                     radar_event, NULL,
+                                                     GFP_ATOMIC);
+
+                                regulatory_propagate_dfs_state(wiphy, &chandef,
+                                                               c->dfs_state,
+                                                               radar_event);
+                                continue;
+                        }
+
+                        if (!check_again)
+                                next_time = timeout - jiffies;
+                        else
+                                next_time = min(next_time, timeout - jiffies);
+                        check_again = true;
+                }
+        }
+        rtnl_unlock();
+
+        /* reschedule if there are other channels waiting to be cleared again */
+        if (check_again)
+                queue_delayed_work(cfg80211_wq, &rdev->dfs_update_channels_wk,
+                                   next_time);
+}
+
+
+void cfg80211_radar_event(struct wiphy *wiphy,
+                          struct cfg80211_chan_def *chandef,
+                          gfp_t gfp)
+{
+        struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
+
+        trace_cfg80211_radar_event(wiphy, chandef);
+
+        /* only set the chandef supplied channel to unavailable, in
+         * case the radar is detected on only one of multiple channels
+         * spanned by the chandef.
+         */
+        cfg80211_set_dfs_state(wiphy, chandef, NL80211_DFS_UNAVAILABLE);
+
+        cfg80211_sched_dfs_chan_update(rdev);
+
+        nl80211_radar_notify(rdev, chandef, NL80211_RADAR_DETECTED, NULL, gfp);
+
+        memcpy(&rdev->radar_chandef, chandef, sizeof(struct cfg80211_chan_def));
+        queue_work(cfg80211_wq, &rdev->propagate_radar_detect_wk);
+}
+EXPORT_SYMBOL(cfg80211_radar_event);
+
+void cfg80211_cac_event(struct net_device *netdev,
+                        const struct cfg80211_chan_def *chandef,
+                        enum nl80211_radar_event event, gfp_t gfp)
+{
+        struct wireless_dev *wdev = netdev->ieee80211_ptr;
+        struct wiphy *wiphy = wdev->wiphy;
+        struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
+        unsigned long timeout;
+
+        trace_cfg80211_cac_event(netdev, event);
+
+        if (WARN_ON(!wdev->cac_started && event != NL80211_RADAR_CAC_STARTED))
+                return;
+
+        if (WARN_ON(!wdev->chandef.chan))
+                return;
+
+        switch (event) {
+        case NL80211_RADAR_CAC_FINISHED:
+                timeout = wdev->cac_start_time +
+                          msecs_to_jiffies(wdev->cac_time_ms);
+                WARN_ON(!time_after_eq(jiffies, timeout));
+                cfg80211_set_dfs_state(wiphy, chandef, NL80211_DFS_AVAILABLE);
+                memcpy(&rdev->cac_done_chandef, chandef,
+                       sizeof(struct cfg80211_chan_def));
+                queue_work(cfg80211_wq, &rdev->propagate_cac_done_wk);
+                cfg80211_sched_dfs_chan_update(rdev);
+                fallthrough;
+        case NL80211_RADAR_CAC_ABORTED:
+                wdev->cac_started = false;
+                break;
+        case NL80211_RADAR_CAC_STARTED:
+                wdev->cac_started = true;
+                break;
+        default:
+                WARN_ON(1);
+                return;
+        }
+
+        nl80211_radar_notify(rdev, chandef, event, netdev, gfp);
+}
+EXPORT_SYMBOL(cfg80211_cac_event);