520 lines
16 KiB
C
520 lines
16 KiB
C
/*
|
|
* Wireless configuration interface internals.
|
|
*
|
|
* Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
|
|
*/
|
|
#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 rfkill *rfkill;
|
|
struct work_struct rfkill_sync;
|
|
|
|
/* 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;
|
|
|
|
struct list_head mlme_unreg;
|
|
spinlock_t mlme_unreg_lock;
|
|
struct work_struct mlme_unreg_wk;
|
|
|
|
/* protected by RTNL only */
|
|
int num_running_ifaces;
|
|
int num_running_monitor_ifaces;
|
|
|
|
/* 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 sk_buff *scan_msg;
|
|
struct list_head sched_scan_req_list;
|
|
unsigned long 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;
|
|
|
|
/* 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;
|
|
|
|
/* 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
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss)
|
|
{
|
|
int 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);
|
|
|
|
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)
|
|
{
|
|
ASSERT_RTNL();
|
|
|
|
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,
|
|
};
|
|
|
|
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 cfg80211_cached_keys {
|
|
struct key_params params[CFG80211_MAX_WEP_KEYS];
|
|
u8 data[CFG80211_MAX_WEP_KEYS][WLAN_KEY_LEN_WEP104];
|
|
int def;
|
|
};
|
|
|
|
enum cfg80211_chan_mode {
|
|
CHAN_MODE_UNDEFINED,
|
|
CHAN_MODE_SHARED,
|
|
CHAN_MODE_EXCLUSIVE,
|
|
};
|
|
|
|
struct cfg80211_beacon_registration {
|
|
struct list_head list;
|
|
u32 nlportid;
|
|
};
|
|
|
|
struct cfg80211_cqm_config {
|
|
u32 rssi_hyst;
|
|
s32 last_rssi_event_value;
|
|
int n_rssi_thresholds;
|
|
s32 rssi_thresholds[0];
|
|
};
|
|
|
|
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);
|
|
|
|
/* 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_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, bool notify);
|
|
int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
|
|
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 *auth_data, int auth_data_len);
|
|
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);
|
|
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 *bssid,
|
|
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);
|
|
void cfg80211_mlme_unreg_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);
|
|
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);
|
|
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_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);
|
|
|
|
/**
|
|
* 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);
|
|
|
|
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);
|
|
|
|
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);
|
|
|
|
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);
|
|
}
|
|
|
|
void
|
|
cfg80211_get_chan_state(struct wireless_dev *wdev,
|
|
struct ieee80211_channel **chan,
|
|
enum cfg80211_chan_mode *chanmode,
|
|
u8 *radar_detect);
|
|
|
|
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);
|
|
|
|
#define CFG80211_MAX_NUM_DIFFERENT_CHANNELS 10
|
|
|
|
#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_cqm_config_free(struct wireless_dev *wdev);
|
|
|
|
#endif /* __NET_WIRELESS_CORE_H */
|