diff options
Diffstat (limited to 'net/wireless/core.h')
| -rw-r--r-- | net/wireless/core.h | 275 |
1 files changed, 124 insertions, 151 deletions
diff --git a/net/wireless/core.h b/net/wireless/core.h index 3563097169c..7e3a3cef7df 100644 --- a/net/wireless/core.h +++ b/net/wireless/core.h @@ -5,10 +5,8 @@ */ #ifndef __NET_WIRELESS_CORE_H #define __NET_WIRELESS_CORE_H -#include <linux/mutex.h> #include <linux/list.h> #include <linux/netdevice.h> -#include <linux/kref.h> #include <linux/rbtree.h> #include <linux/debugfs.h> #include <linux/rfkill.h> @@ -18,14 +16,12 @@ #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; - /* we hold this mutex during any call so that - * we cannot do multiple calls at once, and also - * to avoid the deregister call to proceed while - * any call is in progress */ - struct mutex mtx; /* rfkill support */ struct rfkill_ops rfkill_ops; @@ -47,9 +43,7 @@ struct cfg80211_registered_device { /* wiphy index, internal only */ int wiphy_idx; - /* associated wireless interfaces */ - struct mutex devlist_mtx; - /* protected by devlist_mtx or RCU */ + /* associated wireless interfaces, protected by rtnl or RCU */ struct list_head wdev_list; int devlist_generation, wdev_id; int opencount; /* also protected by devlist_mtx */ @@ -68,75 +62,69 @@ struct cfg80211_registered_device { struct rb_root bss_tree; u32 bss_generation; struct cfg80211_scan_request *scan_req; /* protected by RTNL */ + struct sk_buff *scan_msg; struct cfg80211_sched_scan_request *sched_scan_req; unsigned long suspend_at; struct work_struct scan_done_wk; struct work_struct sched_scan_results_wk; - struct mutex sched_scan_mtx; - -#ifdef CONFIG_NL80211_TESTMODE - struct genl_info *testmode_info; -#endif + struct genl_info *cur_cmd_info; struct work_struct conn_work; struct work_struct event_work; - struct cfg80211_wowlan *wowlan; + struct delayed_work dfs_update_channels_wk; + + /* netlink port which started critical protocol (0 means not started) */ + u32 crit_proto_nlportid; + + struct cfg80211_coalesce *coalesce; + + spinlock_t destroy_list_lock; + struct list_head destroy_list; + struct work_struct destroy_work; /* must be last because of the way we do wiphy_priv(), * and it should at least be aligned to NETDEV_ALIGN */ - struct wiphy wiphy __attribute__((__aligned__(NETDEV_ALIGN))); + struct wiphy wiphy __aligned(NETDEV_ALIGN); }; static inline -struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy) +struct cfg80211_registered_device *wiphy_to_rdev(struct wiphy *wiphy) { BUG_ON(!wiphy); return container_of(wiphy, struct cfg80211_registered_device, wiphy); } -/* Note 0 is valid, hence phy0 */ -static inline -bool wiphy_idx_valid(int wiphy_idx) -{ - return wiphy_idx >= 0; -} - static inline void cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev) { +#ifdef CONFIG_PM int i; - if (!rdev->wowlan) + if (!rdev->wiphy.wowlan_config) return; - for (i = 0; i < rdev->wowlan->n_patterns; i++) - kfree(rdev->wowlan->patterns[i].mask); - kfree(rdev->wowlan->patterns); - kfree(rdev->wowlan); + 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); +#endif } extern struct workqueue_struct *cfg80211_wq; -extern struct mutex cfg80211_mutex; extern struct list_head cfg80211_rdev_list; extern int cfg80211_rdev_list_generation; -static inline void assert_cfg80211_lock(void) -{ - lockdep_assert_held(&cfg80211_mutex); -} - -/* - * You can use this to mark a wiphy_idx as not having an associated wiphy. - * It guarantees cfg80211_rdev_by_wiphy_idx(wiphy_idx) will return NULL - */ -#define WIPHY_IDX_STALE -1 - struct cfg80211_internal_bss { struct list_head list; + struct list_head hidden_list; struct rb_node rbn; unsigned long ts; - struct kref ref; + unsigned long refcount; atomic_t hold; /* must be last because of priv member */ @@ -163,27 +151,11 @@ static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss) struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx); int get_wiphy_idx(struct wiphy *wiphy); -/* requires cfg80211_rdev_mutex to be held! */ struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx); -/* identical to cfg80211_get_dev_from_info but only operate on ifindex */ -extern struct cfg80211_registered_device * -cfg80211_get_dev_from_ifindex(struct net *net, int ifindex); - int cfg80211_switch_netns(struct cfg80211_registered_device *rdev, struct net *net); -static inline void cfg80211_lock_rdev(struct cfg80211_registered_device *rdev) -{ - mutex_lock(&rdev->mtx); -} - -static inline void cfg80211_unlock_rdev(struct cfg80211_registered_device *rdev) -{ - BUG_ON(IS_ERR(rdev) || !rdev); - mutex_unlock(&rdev->mtx); -} - static inline void wdev_lock(struct wireless_dev *wdev) __acquires(wdev) { @@ -198,7 +170,6 @@ static inline void wdev_unlock(struct wireless_dev *wdev) mutex_unlock(&wdev->mtx); } -#define ASSERT_RDEV_LOCK(rdev) lockdep_assert_held(&(rdev)->mtx) #define ASSERT_WDEV_LOCK(wdev) lockdep_assert_held(&(wdev)->mtx) static inline bool cfg80211_has_monitors_only(struct cfg80211_registered_device *rdev) @@ -214,6 +185,7 @@ enum cfg80211_event_type { EVENT_ROAMED, EVENT_DISCONNECTED, EVENT_IBSS_JOINED, + EVENT_STOPPED, }; struct cfg80211_event { @@ -243,6 +215,7 @@ struct cfg80211_event { } dc; struct { u8 bssid[ETH_ALEN]; + struct ieee80211_channel *channel; } ij; }; }; @@ -264,23 +237,26 @@ struct cfg80211_beacon_registration { u32 nlportid; }; +struct cfg80211_iface_destroy { + struct list_head list; + u32 nlportid; +}; + +void cfg80211_destroy_ifaces(struct cfg80211_registered_device *rdev); + /* free object */ -extern void cfg80211_dev_free(struct cfg80211_registered_device *rdev); +void cfg80211_dev_free(struct cfg80211_registered_device *rdev); -extern int cfg80211_dev_rename(struct cfg80211_registered_device *rdev, - char *newname); +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 *dev); -void cfg80211_bss_age(struct cfg80211_registered_device *dev, +void cfg80211_bss_expire(struct cfg80211_registered_device *rdev); +void cfg80211_bss_age(struct cfg80211_registered_device *rdev, unsigned long age_secs); /* IBSS */ -int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev, - struct net_device *dev, - struct cfg80211_ibss_params *params, - struct cfg80211_cached_keys *connkeys); int cfg80211_join_ibss(struct cfg80211_registered_device *rdev, struct net_device *dev, struct cfg80211_ibss_params *params, @@ -290,7 +266,8 @@ 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); +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); @@ -305,6 +282,8 @@ 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, @@ -312,47 +291,27 @@ int cfg80211_set_mesh_channel(struct cfg80211_registered_device *rdev, struct cfg80211_chan_def *chandef); /* AP */ +int __cfg80211_stop_ap(struct cfg80211_registered_device *rdev, + struct net_device *dev, bool notify); int cfg80211_stop_ap(struct cfg80211_registered_device *rdev, - struct net_device *dev); + struct net_device *dev, bool notify); /* MLME */ -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 *sae_data, int sae_data_len); 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, + 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 *sae_data, int sae_data_len); -int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev, - struct net_device *dev, - struct ieee80211_channel *chan, - const u8 *bssid, const u8 *prev_bssid, - const u8 *ssid, int ssid_len, - const u8 *ie, int ie_len, bool use_mfp, - struct cfg80211_crypto_settings *crypt, - u32 assoc_flags, struct ieee80211_ht_cap *ht_capa, - struct ieee80211_ht_cap *ht_capa_mask); int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev, - struct net_device *dev, struct ieee80211_channel *chan, - const u8 *bssid, const u8 *prev_bssid, + struct net_device *dev, + struct ieee80211_channel *chan, + const u8 *bssid, const u8 *ssid, int ssid_len, - const u8 *ie, int ie_len, bool use_mfp, - struct cfg80211_crypto_settings *crypt, - u32 assoc_flags, struct ieee80211_ht_cap *ht_capa, - struct ieee80211_ht_cap *ht_capa_mask); -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 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, @@ -363,11 +322,6 @@ int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev, bool local_state_change); void cfg80211_mlme_down(struct cfg80211_registered_device *rdev, struct net_device *dev); -void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid, - const u8 *req_ie, size_t req_ie_len, - const u8 *resp_ie, size_t resp_ie_len, - u16 status, bool wextev, - struct cfg80211_bss *bss); int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid, u16 frame_type, const u8 *match_data, int match_len); @@ -375,25 +329,26 @@ 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 ieee80211_channel *chan, bool offchan, - unsigned int wait, const u8 *buf, size_t len, - bool no_cck, bool dont_wait_for_ack, u64 *cookie); + 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 */ -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); +/* SME events */ int cfg80211_connect(struct cfg80211_registered_device *rdev, struct net_device *dev, struct cfg80211_connect_params *connect, - struct cfg80211_cached_keys *connkeys); -int __cfg80211_disconnect(struct cfg80211_registered_device *rdev, - struct net_device *dev, u16 reason, - bool wextev); + struct cfg80211_cached_keys *connkeys, + const u8 *prev_bssid); +void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid, + const u8 *req_ie, size_t req_ie_len, + const u8 *resp_ie, size_t resp_ie_len, + u16 status, bool wextev, + struct cfg80211_bss *bss); +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); @@ -404,23 +359,24 @@ void __cfg80211_roamed(struct wireless_dev *wdev, int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev, struct wireless_dev *wdev); +/* SME implementation */ void cfg80211_conn_work(struct work_struct *work); -void cfg80211_sme_failed_assoc(struct wireless_dev *wdev); -bool cfg80211_sme_failed_reassoc(struct wireless_dev *wdev); +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); /* internal helpers */ bool cfg80211_supported_cipher_suite(struct wiphy *wiphy, u32 cipher); 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_disconnected(struct net_device *dev, const u8 *ie, - size_t ie_len, u16 reason, bool from_ap); -void cfg80211_sme_scan_done(struct net_device *dev); -void cfg80211_sme_rx_auth(struct net_device *dev, const u8 *buf, size_t len); -void cfg80211_sme_disassoc(struct net_device *dev, - struct cfg80211_internal_bss *bss); void __cfg80211_scan_done(struct work_struct *wk); -void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev, bool leak); +void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev, + bool send_message); void __cfg80211_sched_scan_results(struct work_struct *wk); int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev, bool driver_initiated); @@ -435,38 +391,47 @@ int cfg80211_can_use_iftype_chan(struct cfg80211_registered_device *rdev, struct wireless_dev *wdev, enum nl80211_iftype iftype, struct ieee80211_channel *chan, - enum cfg80211_chan_mode chanmode); + enum cfg80211_chan_mode chanmode, + u8 radar_detect); -static inline int -cfg80211_can_change_interface(struct cfg80211_registered_device *rdev, - struct wireless_dev *wdev, - enum nl80211_iftype iftype) -{ - return cfg80211_can_use_iftype_chan(rdev, wdev, iftype, NULL, - CHAN_MODE_UNDEFINED); -} +/** + * 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: Return true if all channels available and at least + * one channel require CAC (NL80211_DFS_USABLE) + */ +bool cfg80211_chandef_dfs_usable(struct wiphy *wiphy, + const struct cfg80211_chan_def *chandef); -static inline int -cfg80211_can_add_interface(struct cfg80211_registered_device *rdev, - enum nl80211_iftype iftype) -{ - return cfg80211_can_change_interface(rdev, NULL, iftype); -} +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); -static inline int -cfg80211_can_use_chan(struct cfg80211_registered_device *rdev, - struct wireless_dev *wdev, - struct ieee80211_channel *chan, - enum cfg80211_chan_mode chanmode) +unsigned int +cfg80211_chandef_dfs_cac_time(struct wiphy *wiphy, + const struct cfg80211_chan_def *chandef); + +static inline unsigned int elapsed_jiffies_msecs(unsigned long start) { - return cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype, - chan, chanmode); + unsigned long end = jiffies; + + if (end >= start) + return jiffies_to_msecs(end - start); + + return jiffies_to_msecs(end + (ULONG_MAX - start) + 1); } void cfg80211_get_chan_state(struct wireless_dev *wdev, struct ieee80211_channel **chan, - enum cfg80211_chan_mode *chanmode); + enum cfg80211_chan_mode *chanmode, + u8 *radar_detect); int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev, struct cfg80211_chan_def *chandef); @@ -481,6 +446,14 @@ int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev, 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); + #define CFG80211_MAX_NUM_DIFFERENT_CHANNELS 10 #ifdef CONFIG_CFG80211_DEVELOPER_WARNINGS |