Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 582 insertions, 0 deletions

diff --git a/net/wireless/core.h b/net/wireless/core.h
new file mode 100644
index 000000000..ee980965a
--- /dev/null
+++ b/net/wireless/core.h
@@ -0,0 +1,582 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Wireless configuration interface internals.
+ *
+ * Copyright 2006-2010	Johannes Berg <johannes@sipsolutions.net>
+ * Copyright (C) 2018-2022 Intel Corporation
+ */
+#ifndef __NET_WIRELESS_CORE_H
+#define __NET_WIRELESS_CORE_H
+#include <linux/list.h>
+#include <linux/netdevice.h>
+#include <linux/rbtree.h>
+#include <linux/debugfs.h>
+#include <linux/rfkill.h>
+#include <linux/workqueue.h>
+#include <linux/rtnetlink.h>
+#include <net/genetlink.h>
+#include <net/cfg80211.h>
+#include "reg.h"
+
+
+#define WIPHY_IDX_INVALID	-1
+
+struct cfg80211_registered_device {
+	const struct cfg80211_ops *ops;
+	struct list_head list;
+
+	/* rfkill support */
+	struct rfkill_ops rfkill_ops;
+	struct work_struct rfkill_block;
+
+	/* ISO / IEC 3166 alpha2 for which this device is receiving
+	 * country IEs on, this can help disregard country IEs from APs
+	 * on the same alpha2 quickly. The alpha2 may differ from
+	 * cfg80211_regdomain's alpha2 when an intersection has occurred.
+	 * If the AP is reconfigured this can also be used to tell us if
+	 * the country on the country IE changed. */
+	char country_ie_alpha2[2];
+
+	/*
+	 * the driver requests the regulatory core to set this regulatory
+	 * domain as the wiphy's. Only used for %REGULATORY_WIPHY_SELF_MANAGED
+	 * devices using the regulatory_set_wiphy_regd() API
+	 */
+	const struct ieee80211_regdomain *requested_regd;
+
+	/* If a Country IE has been received this tells us the environment
+	 * which its telling us its in. This defaults to ENVIRON_ANY */
+	enum environment_cap env;
+
+	/* wiphy index, internal only */
+	int wiphy_idx;
+
+	/* protected by RTNL */
+	int devlist_generation, wdev_id;
+	int opencount;
+	wait_queue_head_t dev_wait;
+
+	struct list_head beacon_registrations;
+	spinlock_t beacon_registrations_lock;
+
+	/* protected by RTNL only */
+	int num_running_ifaces;
+	int num_running_monitor_ifaces;
+	u64 cookie_counter;
+
+	/* BSSes/scanning */
+	spinlock_t bss_lock;
+	struct list_head bss_list;
+	struct rb_root bss_tree;
+	u32 bss_generation;
+	u32 bss_entries;
+	struct cfg80211_scan_request *scan_req; /* protected by RTNL */
+	struct cfg80211_scan_request *int_scan_req;
+	struct sk_buff *scan_msg;
+	struct list_head sched_scan_req_list;
+	time64_t suspend_at;
+	struct work_struct scan_done_wk;
+
+	struct genl_info *cur_cmd_info;
+
+	struct work_struct conn_work;
+	struct work_struct event_work;
+
+	struct delayed_work dfs_update_channels_wk;
+
+	struct wireless_dev *background_radar_wdev;
+	struct cfg80211_chan_def background_radar_chandef;
+	struct delayed_work background_cac_done_wk;
+	struct work_struct background_cac_abort_wk;
+
+	/* netlink port which started critical protocol (0 means not started) */
+	u32 crit_proto_nlportid;
+
+	struct cfg80211_coalesce *coalesce;
+
+	struct work_struct destroy_work;
+	struct work_struct sched_scan_stop_wk;
+	struct work_struct sched_scan_res_wk;
+
+	struct cfg80211_chan_def radar_chandef;
+	struct work_struct propagate_radar_detect_wk;
+
+	struct cfg80211_chan_def cac_done_chandef;
+	struct work_struct propagate_cac_done_wk;
+
+	struct work_struct mgmt_registrations_update_wk;
+	/* lock for all wdev lists */
+	spinlock_t mgmt_registrations_lock;
+
+	struct work_struct wiphy_work;
+	struct list_head wiphy_work_list;
+	/* protects the list above */
+	spinlock_t wiphy_work_lock;
+	bool suspended;
+
+	/* must be last because of the way we do wiphy_priv(),
+	 * and it should at least be aligned to NETDEV_ALIGN */
+	struct wiphy wiphy __aligned(NETDEV_ALIGN);
+};
+
+static inline
+struct cfg80211_registered_device *wiphy_to_rdev(struct wiphy *wiphy)
+{
+	BUG_ON(!wiphy);
+	return container_of(wiphy, struct cfg80211_registered_device, wiphy);
+}
+
+static inline void
+cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev)
+{
+#ifdef CONFIG_PM
+	int i;
+
+	if (!rdev->wiphy.wowlan_config)
+		return;
+	for (i = 0; i < rdev->wiphy.wowlan_config->n_patterns; i++)
+		kfree(rdev->wiphy.wowlan_config->patterns[i].mask);
+	kfree(rdev->wiphy.wowlan_config->patterns);
+	if (rdev->wiphy.wowlan_config->tcp &&
+	    rdev->wiphy.wowlan_config->tcp->sock)
+		sock_release(rdev->wiphy.wowlan_config->tcp->sock);
+	kfree(rdev->wiphy.wowlan_config->tcp);
+	kfree(rdev->wiphy.wowlan_config->nd_config);
+	kfree(rdev->wiphy.wowlan_config);
+#endif
+}
+
+static inline u64 cfg80211_assign_cookie(struct cfg80211_registered_device *rdev)
+{
+	u64 r = ++rdev->cookie_counter;
+
+	if (WARN_ON(r == 0))
+		r = ++rdev->cookie_counter;
+
+	return r;
+}
+
+extern struct workqueue_struct *cfg80211_wq;
+extern struct list_head cfg80211_rdev_list;
+extern int cfg80211_rdev_list_generation;
+
+struct cfg80211_internal_bss {
+	struct list_head list;
+	struct list_head hidden_list;
+	struct rb_node rbn;
+	u64 ts_boottime;
+	unsigned long ts;
+	unsigned long refcount;
+	atomic_t hold;
+
+	/* time at the start of the reception of the first octet of the
+	 * timestamp field of the last beacon/probe received for this BSS.
+	 * The time is the TSF of the BSS specified by %parent_bssid.
+	 */
+	u64 parent_tsf;
+
+	/* the BSS according to which %parent_tsf is set. This is set to
+	 * the BSS that the interface that requested the scan was connected to
+	 * when the beacon/probe was received.
+	 */
+	u8 parent_bssid[ETH_ALEN] __aligned(2);
+
+	/* must be last because of priv member */
+	struct cfg80211_bss pub;
+};
+
+static inline struct cfg80211_internal_bss *bss_from_pub(struct cfg80211_bss *pub)
+{
+	return container_of(pub, struct cfg80211_internal_bss, pub);
+}
+
+static inline void cfg80211_hold_bss(struct cfg80211_internal_bss *bss)
+{
+	atomic_inc(&bss->hold);
+	if (bss->pub.transmitted_bss) {
+		bss = container_of(bss->pub.transmitted_bss,
+				   struct cfg80211_internal_bss, pub);
+		atomic_inc(&bss->hold);
+	}
+}
+
+static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss)
+{
+	int r = atomic_dec_return(&bss->hold);
+	WARN_ON(r < 0);
+	if (bss->pub.transmitted_bss) {
+		bss = container_of(bss->pub.transmitted_bss,
+				   struct cfg80211_internal_bss, pub);
+		r = atomic_dec_return(&bss->hold);
+		WARN_ON(r < 0);
+	}
+}
+
+
+struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx);
+int get_wiphy_idx(struct wiphy *wiphy);
+
+struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx);
+
+int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
+			  struct net *net);
+
+void cfg80211_init_wdev(struct wireless_dev *wdev);
+void cfg80211_register_wdev(struct cfg80211_registered_device *rdev,
+			    struct wireless_dev *wdev);
+
+static inline void wdev_lock(struct wireless_dev *wdev)
+	__acquires(wdev)
+{
+	mutex_lock(&wdev->mtx);
+	__acquire(wdev->mtx);
+}
+
+static inline void wdev_unlock(struct wireless_dev *wdev)
+	__releases(wdev)
+{
+	__release(wdev->mtx);
+	mutex_unlock(&wdev->mtx);
+}
+
+#define ASSERT_WDEV_LOCK(wdev) lockdep_assert_held(&(wdev)->mtx)
+
+static inline bool cfg80211_has_monitors_only(struct cfg80211_registered_device *rdev)
+{
+	lockdep_assert_held(&rdev->wiphy.mtx);
+
+	return rdev->num_running_ifaces == rdev->num_running_monitor_ifaces &&
+	       rdev->num_running_ifaces > 0;
+}
+
+enum cfg80211_event_type {
+	EVENT_CONNECT_RESULT,
+	EVENT_ROAMED,
+	EVENT_DISCONNECTED,
+	EVENT_IBSS_JOINED,
+	EVENT_STOPPED,
+	EVENT_PORT_AUTHORIZED,
+};
+
+struct cfg80211_event {
+	struct list_head list;
+	enum cfg80211_event_type type;
+
+	union {
+		struct cfg80211_connect_resp_params cr;
+		struct cfg80211_roam_info rm;
+		struct {
+			const u8 *ie;
+			size_t ie_len;
+			u16 reason;
+			bool locally_generated;
+		} dc;
+		struct {
+			u8 bssid[ETH_ALEN];
+			struct ieee80211_channel *channel;
+		} ij;
+		struct {
+			u8 bssid[ETH_ALEN];
+		} pa;
+	};
+};
+
+struct cfg80211_cached_keys {
+	struct key_params params[CFG80211_MAX_WEP_KEYS];
+	u8 data[CFG80211_MAX_WEP_KEYS][WLAN_KEY_LEN_WEP104];
+	int def;
+};
+
+struct cfg80211_beacon_registration {
+	struct list_head list;
+	u32 nlportid;
+};
+
+struct cfg80211_cqm_config {
+	struct rcu_head rcu_head;
+	u32 rssi_hyst;
+	s32 last_rssi_event_value;
+	enum nl80211_cqm_rssi_threshold_event last_rssi_event_type;
+	bool use_range_api;
+	int n_rssi_thresholds;
+	s32 rssi_thresholds[];
+};
+
+void cfg80211_cqm_rssi_notify_work(struct wiphy *wiphy,
+				   struct wiphy_work *work);
+
+void cfg80211_destroy_ifaces(struct cfg80211_registered_device *rdev);
+
+/* free object */
+void cfg80211_dev_free(struct cfg80211_registered_device *rdev);
+
+int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
+			char *newname);
+
+void ieee80211_set_bitrate_flags(struct wiphy *wiphy);
+
+void cfg80211_bss_expire(struct cfg80211_registered_device *rdev);
+void cfg80211_bss_age(struct cfg80211_registered_device *rdev,
+                      unsigned long age_secs);
+void cfg80211_update_assoc_bss_entry(struct wireless_dev *wdev,
+				     unsigned int link,
+				     struct ieee80211_channel *channel);
+
+/* IBSS */
+int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
+			 struct net_device *dev,
+			 struct cfg80211_ibss_params *params,
+			 struct cfg80211_cached_keys *connkeys);
+void cfg80211_clear_ibss(struct net_device *dev, bool nowext);
+int __cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
+			  struct net_device *dev, bool nowext);
+int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
+			struct net_device *dev, bool nowext);
+void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid,
+			    struct ieee80211_channel *channel);
+int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
+			    struct wireless_dev *wdev);
+
+/* mesh */
+extern const struct mesh_config default_mesh_config;
+extern const struct mesh_setup default_mesh_setup;
+int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
+			 struct net_device *dev,
+			 struct mesh_setup *setup,
+			 const struct mesh_config *conf);
+int __cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
+			  struct net_device *dev);
+int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
+			struct net_device *dev);
+int cfg80211_set_mesh_channel(struct cfg80211_registered_device *rdev,
+			      struct wireless_dev *wdev,
+			      struct cfg80211_chan_def *chandef);
+
+/* OCB */
+int __cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
+			struct net_device *dev,
+			struct ocb_setup *setup);
+int cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
+		      struct net_device *dev,
+		      struct ocb_setup *setup);
+int __cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
+			 struct net_device *dev);
+int cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
+		       struct net_device *dev);
+
+/* AP */
+int __cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
+		       struct net_device *dev, int link,
+		       bool notify);
+int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
+		     struct net_device *dev, int link,
+		     bool notify);
+
+/* MLME */
+int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
+		       struct net_device *dev,
+		       struct cfg80211_auth_request *req);
+int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
+			struct net_device *dev,
+			struct cfg80211_assoc_request *req);
+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);
+int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
+			   struct net_device *dev, const u8 *ap_addr,
+			   const u8 *ie, int ie_len, u16 reason,
+			   bool local_state_change);
+void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
+			struct net_device *dev);
+int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid,
+				u16 frame_type, const u8 *match_data,
+				int match_len, bool multicast_rx,
+				struct netlink_ext_ack *extack);
+void cfg80211_mgmt_registrations_update_wk(struct work_struct *wk);
+void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid);
+void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev);
+int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
+			  struct wireless_dev *wdev,
+			  struct cfg80211_mgmt_tx_params *params,
+			  u64 *cookie);
+void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa,
+			       const struct ieee80211_ht_cap *ht_capa_mask);
+void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa,
+				const struct ieee80211_vht_cap *vht_capa_mask);
+
+/* SME events */
+int cfg80211_connect(struct cfg80211_registered_device *rdev,
+		     struct net_device *dev,
+		     struct cfg80211_connect_params *connect,
+		     struct cfg80211_cached_keys *connkeys,
+		     const u8 *prev_bssid);
+void __cfg80211_connect_result(struct net_device *dev,
+			       struct cfg80211_connect_resp_params *params,
+			       bool wextev);
+void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
+			     size_t ie_len, u16 reason, bool from_ap);
+int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
+			struct net_device *dev, u16 reason,
+			bool wextev);
+void __cfg80211_roamed(struct wireless_dev *wdev,
+		       struct cfg80211_roam_info *info);
+void __cfg80211_port_authorized(struct wireless_dev *wdev, const u8 *bssid);
+int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
+			      struct wireless_dev *wdev);
+void cfg80211_autodisconnect_wk(struct work_struct *work);
+
+/* SME implementation */
+void cfg80211_conn_work(struct work_struct *work);
+void cfg80211_sme_scan_done(struct net_device *dev);
+bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status);
+void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len);
+void cfg80211_sme_disassoc(struct wireless_dev *wdev);
+void cfg80211_sme_deauth(struct wireless_dev *wdev);
+void cfg80211_sme_auth_timeout(struct wireless_dev *wdev);
+void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev);
+void cfg80211_sme_abandon_assoc(struct wireless_dev *wdev);
+
+/* internal helpers */
+bool cfg80211_supported_cipher_suite(struct wiphy *wiphy, u32 cipher);
+bool cfg80211_valid_key_idx(struct cfg80211_registered_device *rdev,
+			    int key_idx, bool pairwise);
+int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
+				   struct key_params *params, int key_idx,
+				   bool pairwise, const u8 *mac_addr);
+void __cfg80211_scan_done(struct work_struct *wk);
+void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev,
+			   bool send_message);
+void cfg80211_add_sched_scan_req(struct cfg80211_registered_device *rdev,
+				 struct cfg80211_sched_scan_request *req);
+int cfg80211_sched_scan_req_possible(struct cfg80211_registered_device *rdev,
+				     bool want_multi);
+void cfg80211_sched_scan_results_wk(struct work_struct *work);
+int cfg80211_stop_sched_scan_req(struct cfg80211_registered_device *rdev,
+				 struct cfg80211_sched_scan_request *req,
+				 bool driver_initiated);
+int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev,
+			       u64 reqid, bool driver_initiated);
+void cfg80211_upload_connect_keys(struct wireless_dev *wdev);
+int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
+			  struct net_device *dev, enum nl80211_iftype ntype,
+			  struct vif_params *params);
+void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev);
+void cfg80211_process_wiphy_works(struct cfg80211_registered_device *rdev,
+				  struct wiphy_work *end);
+void cfg80211_process_wdev_events(struct wireless_dev *wdev);
+
+bool cfg80211_does_bw_fit_range(const struct ieee80211_freq_range *freq_range,
+				u32 center_freq_khz, u32 bw_khz);
+
+int cfg80211_scan(struct cfg80211_registered_device *rdev);
+
+extern struct work_struct cfg80211_disconnect_work;
+
+/**
+ * cfg80211_chandef_dfs_usable - checks if chandef is DFS usable
+ * @wiphy: the wiphy to validate against
+ * @chandef: the channel definition to check
+ *
+ * Checks if chandef is usable and we can/need start CAC on such channel.
+ *
+ * Return: true if all channels available and at least
+ *	   one channel requires CAC (NL80211_DFS_USABLE)
+ */
+bool cfg80211_chandef_dfs_usable(struct wiphy *wiphy,
+				 const struct cfg80211_chan_def *chandef);
+
+void cfg80211_set_dfs_state(struct wiphy *wiphy,
+			    const struct cfg80211_chan_def *chandef,
+			    enum nl80211_dfs_state dfs_state);
+
+void cfg80211_dfs_channels_update_work(struct work_struct *work);
+
+unsigned int
+cfg80211_chandef_dfs_cac_time(struct wiphy *wiphy,
+			      const struct cfg80211_chan_def *chandef);
+
+void cfg80211_sched_dfs_chan_update(struct cfg80211_registered_device *rdev);
+
+int
+cfg80211_start_background_radar_detection(struct cfg80211_registered_device *rdev,
+					  struct wireless_dev *wdev,
+					  struct cfg80211_chan_def *chandef);
+
+void cfg80211_stop_background_radar_detection(struct wireless_dev *wdev);
+
+void cfg80211_background_cac_done_wk(struct work_struct *work);
+
+void cfg80211_background_cac_abort_wk(struct work_struct *work);
+
+bool cfg80211_any_wiphy_oper_chan(struct wiphy *wiphy,
+				  struct ieee80211_channel *chan);
+
+bool cfg80211_beaconing_iface_active(struct wireless_dev *wdev);
+
+bool cfg80211_is_sub_chan(struct cfg80211_chan_def *chandef,
+			  struct ieee80211_channel *chan,
+			  bool primary_only);
+bool cfg80211_wdev_on_sub_chan(struct wireless_dev *wdev,
+			       struct ieee80211_channel *chan,
+			       bool primary_only);
+
+static inline unsigned int elapsed_jiffies_msecs(unsigned long start)
+{
+	unsigned long end = jiffies;
+
+	if (end >= start)
+		return jiffies_to_msecs(end - start);
+
+	return jiffies_to_msecs(end + (ULONG_MAX - start) + 1);
+}
+
+int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev,
+				 struct cfg80211_chan_def *chandef);
+
+int ieee80211_get_ratemask(struct ieee80211_supported_band *sband,
+			   const u8 *rates, unsigned int n_rates,
+			   u32 *mask);
+
+int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev,
+				 enum nl80211_iftype iftype, u32 beacon_int);
+
+void cfg80211_update_iface_num(struct cfg80211_registered_device *rdev,
+			       enum nl80211_iftype iftype, int num);
+
+void __cfg80211_leave(struct cfg80211_registered_device *rdev,
+		      struct wireless_dev *wdev);
+void cfg80211_leave(struct cfg80211_registered_device *rdev,
+		    struct wireless_dev *wdev);
+
+void cfg80211_stop_p2p_device(struct cfg80211_registered_device *rdev,
+			      struct wireless_dev *wdev);
+
+void cfg80211_stop_nan(struct cfg80211_registered_device *rdev,
+		       struct wireless_dev *wdev);
+
+struct cfg80211_internal_bss *
+cfg80211_bss_update(struct cfg80211_registered_device *rdev,
+		    struct cfg80211_internal_bss *tmp,
+		    bool signal_valid, unsigned long ts);
+#ifdef CONFIG_CFG80211_DEVELOPER_WARNINGS
+#define CFG80211_DEV_WARN_ON(cond)	WARN_ON(cond)
+#else
+/*
+ * Trick to enable using it as a condition,
+ * and also not give a warning when it's
+ * not used that way.
+ */
+#define CFG80211_DEV_WARN_ON(cond)	({bool __r = (cond); __r; })
+#endif
+
+void cfg80211_release_pmsr(struct wireless_dev *wdev, u32 portid);
+void cfg80211_pmsr_wdev_down(struct wireless_dev *wdev);
+void cfg80211_pmsr_free_wk(struct work_struct *work);
+
+void cfg80211_remove_link(struct wireless_dev *wdev, unsigned int link_id);
+void cfg80211_remove_links(struct wireless_dev *wdev);
+int cfg80211_remove_virtual_intf(struct cfg80211_registered_device *rdev,
+				 struct wireless_dev *wdev);
+
+#endif /* __NET_WIRELESS_CORE_H */