* Copyright 2002-2005, Instant802 Networks, Inc.
* Copyright 2005, Devicescape Software, Inc.
* Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
- * Copyright 2007-2008 Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
#define TU_TO_EXP_TIME(x) (jiffies + usecs_to_jiffies((x) * 1024))
+#define IEEE80211_DEFAULT_UAPSD_QUEUES \
+ (IEEE80211_WMM_IE_STA_QOSINFO_AC_BK | \
+ IEEE80211_WMM_IE_STA_QOSINFO_AC_BE | \
+ IEEE80211_WMM_IE_STA_QOSINFO_AC_VI | \
+ IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
+
+#define IEEE80211_DEFAULT_MAX_SP_LEN \
+ IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
+
struct ieee80211_fragment_entry {
unsigned long first_frag_time;
unsigned int seq;
struct ieee80211_bss {
- /* Yes, this is a hack */
- struct cfg80211_bss cbss;
-
/* don't want to look up all the time */
size_t ssid_len;
u8 ssid[IEEE80211_MAX_SSID_LEN];
u8 dtim_period;
bool wmm_used;
+ bool uapsd_supported;
unsigned long last_probe_resp;
struct ieee80211_tx_data {
struct sk_buff *skb;
- struct net_device *dev;
struct ieee80211_local *local;
struct ieee80211_sub_if_data *sdata;
struct sta_info *sta;
u8 flags;
};
-enum ieee80211_mgd_state {
- IEEE80211_MGD_STATE_IDLE,
- IEEE80211_MGD_STATE_PROBE,
- IEEE80211_MGD_STATE_AUTH,
- IEEE80211_MGD_STATE_ASSOC,
+enum ieee80211_work_type {
+ IEEE80211_WORK_ABORT,
+ IEEE80211_WORK_DIRECT_PROBE,
+ IEEE80211_WORK_AUTH,
+ IEEE80211_WORK_ASSOC,
+ IEEE80211_WORK_REMAIN_ON_CHANNEL,
};
-struct ieee80211_mgd_work {
+/**
+ * enum work_done_result - indicates what to do after work was done
+ *
+ * @WORK_DONE_DESTROY: This work item is no longer needed, destroy.
+ * @WORK_DONE_REQUEUE: This work item was reset to be reused, and
+ * should be requeued.
+ */
+enum work_done_result {
+ WORK_DONE_DESTROY,
+ WORK_DONE_REQUEUE,
+};
+
+struct ieee80211_work {
struct list_head list;
- struct ieee80211_bss *bss;
- int ie_len;
- u8 prev_bssid[ETH_ALEN];
- u8 ssid[IEEE80211_MAX_SSID_LEN];
- u8 ssid_len;
+
+ struct rcu_head rcu_head;
+
+ struct ieee80211_sub_if_data *sdata;
+
+ enum work_done_result (*done)(struct ieee80211_work *wk,
+ struct sk_buff *skb);
+
+ struct ieee80211_channel *chan;
+ enum nl80211_channel_type chan_type;
+
unsigned long timeout;
- enum ieee80211_mgd_state state;
- u16 auth_alg, auth_transaction;
+ enum ieee80211_work_type type;
+
+ u8 filter_ta[ETH_ALEN];
- int tries;
+ bool started;
- u8 key[WLAN_KEY_LEN_WEP104];
- u8 key_len, key_idx;
+ union {
+ struct {
+ int tries;
+ u16 algorithm, transaction;
+ u8 ssid[IEEE80211_MAX_SSID_LEN];
+ u8 ssid_len;
+ u8 key[WLAN_KEY_LEN_WEP104];
+ u8 key_len, key_idx;
+ bool privacy;
+ } probe_auth;
+ struct {
+ struct cfg80211_bss *bss;
+ const u8 *supp_rates;
+ const u8 *ht_information_ie;
+ enum ieee80211_smps_mode smps;
+ int tries;
+ u16 capability;
+ u8 prev_bssid[ETH_ALEN];
+ u8 ssid[IEEE80211_MAX_SSID_LEN];
+ u8 ssid_len;
+ u8 supp_rates_len;
+ bool wmm_used, use_11n, uapsd_used;
+ } assoc;
+ struct {
+ u32 duration;
+ } remain;
+ };
+ int ie_len;
/* must be last */
- u8 ie[0]; /* for auth or assoc frame, not probe */
+ u8 ie[0];
};
/* flags used in struct ieee80211_if_managed.flags */
IEEE80211_STA_BEACON_POLL = BIT(0),
IEEE80211_STA_CONNECTION_POLL = BIT(1),
IEEE80211_STA_CONTROL_PORT = BIT(2),
- IEEE80211_STA_WMM_ENABLED = BIT(3),
IEEE80211_STA_DISABLE_11N = BIT(4),
IEEE80211_STA_CSA_RECEIVED = BIT(5),
IEEE80211_STA_MFP_ENABLED = BIT(6),
-};
-
-/* flags for MLME request */
-enum ieee80211_sta_request {
- IEEE80211_STA_REQ_SCAN,
+ IEEE80211_STA_UAPSD_ENABLED = BIT(7),
+ IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
};
struct ieee80211_if_managed {
int probe_send_count;
struct mutex mtx;
- struct ieee80211_bss *associated;
- struct ieee80211_mgd_work *old_associate_work;
- struct list_head work_list;
+ struct cfg80211_bss *associated;
u8 bssid[ETH_ALEN];
u16 aid;
- u16 capab;
struct sk_buff_head skb_queue;
unsigned long timers_running; /* used for quiesce/restart */
bool powersave; /* powersave requested for this iface */
-
- unsigned long request;
+ enum ieee80211_smps_mode req_smps, /* requested smps mode */
+ ap_smps; /* smps mode AP thinks we're in */
unsigned int flags;
int drop_unencrypted;
+ char name[IFNAMSIZ];
+
/*
* keep track of whether the HT opmode (stored in
* vif.bss_info.ht_operation_mode) is valid.
*/
struct ieee80211_if_ap *bss;
- int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
- int max_ratectrl_rateidx; /* max TX rateidx for rate control */
+ /* bitmap of allowed (non-MCS) rate indexes for rate control */
+ u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
union {
struct ieee80211_if_ap ap;
const struct ieee80211_ops *ops;
+ /*
+ * work stuff, potentially off-channel (in the future)
+ */
+ struct mutex work_mtx;
+ struct list_head work_list;
+ struct timer_list work_timer;
+ struct work_struct work_work;
+ struct sk_buff_head work_skb_queue;
+
/*
* private workqueue to mac80211. mac80211 makes this accessible
* via ieee80211_queue_work()
/* used for uploading changed mc list */
struct work_struct reconfig_filter;
+ /* used to reconfigure hardware SM PS */
+ struct work_struct recalc_smps;
+
/* aggregated multicast list */
struct dev_addr_list *mc_list;
int mc_count;
/* Station data */
/*
- * The lock only protects the list, hash, timer and counter
- * against manipulation, reads are done in RCU. Additionally,
- * the lock protects each BSS's TIM bitmap.
+ * The mutex only protects the list and counter,
+ * reads are done in RCU.
+ * Additionally, the lock protects the hash table,
+ * the pending list and each BSS's TIM bitmap.
*/
+ struct mutex sta_mtx;
spinlock_t sta_lock;
unsigned long num_sta;
- struct list_head sta_list;
+ struct list_head sta_list, sta_pending_list;
struct sta_info *sta_hash[STA_HASH_SIZE];
struct timer_list sta_cleanup;
+ struct work_struct sta_finish_work;
int sta_generation;
struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
enum nl80211_channel_type oper_channel_type;
struct ieee80211_channel *oper_channel, *csa_channel;
+ /* Temporary remain-on-channel for off-channel operations */
+ struct ieee80211_channel *tmp_channel;
+ enum nl80211_channel_type tmp_channel_type;
+
/* SNMP counters */
/* dot11CountersTable */
u32 dot11TransmittedFragmentCount;
assoc_led_name[32], radio_led_name[32];
#endif
-#ifdef CONFIG_MAC80211_DEBUGFS
- struct work_struct sta_debugfs_add;
-#endif
-
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
/* TX/RX handler statistics */
unsigned int tx_handlers_drop;
int wifi_wme_noack_test;
unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
+ /*
+ * Bitmask of enabled u-apsd queues,
+ * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
+ * to take effect.
+ */
+ unsigned int uapsd_queues;
+
+ /*
+ * Maximum number of buffered frames AP can deliver during a
+ * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
+ * Needs a new association to take effect.
+ */
+ unsigned int uapsd_max_sp_len;
+
bool pspolling;
- bool scan_ps_enabled;
+ bool offchannel_ps_enabled;
/*
* PS can only be enabled when we have exactly one managed
* interface (and monitors) in PS, this then points there.
int user_power_level; /* in dBm */
int power_constr_level; /* in dBm */
+ enum ieee80211_smps_mode smps_mode;
+
struct work_struct restart_work;
#ifdef CONFIG_MAC80211_DEBUGFS
void ieee80211_configure_filter(struct ieee80211_local *local);
u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
+extern bool ieee80211_disable_40mhz_24ghz;
+
/* STA code */
void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
struct cfg80211_disassoc_request *req,
void *cookie);
+int ieee80211_mgd_action(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_channel *chan,
+ enum nl80211_channel_type channel_type,
+ const u8 *buf, size_t len, u64 *cookie);
ieee80211_rx_result ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb);
void ieee80211_send_pspoll(struct ieee80211_local *local,
ieee80211_rx_result
ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
- u8 *bssid, u8 *addr, u32 supp_rates);
+ u8 *bssid, u8 *addr, u32 supp_rates,
+ gfp_t gfp);
int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
struct cfg80211_ibss_params *params);
int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
void ieee80211_rx_bss_put(struct ieee80211_local *local,
struct ieee80211_bss *bss);
+/* off-channel helpers */
+void ieee80211_offchannel_stop_beaconing(struct ieee80211_local *local);
+void ieee80211_offchannel_stop_station(struct ieee80211_local *local);
+void ieee80211_offchannel_return(struct ieee80211_local *local,
+ bool enable_beaconing);
+
/* interface handling */
+int ieee80211_iface_init(void);
+void ieee80211_iface_exit(void);
int ieee80211_if_add(struct ieee80211_local *local, const char *name,
struct net_device **new_dev, enum nl80211_iftype type,
struct vif_params *params);
u32 __ieee80211_recalc_idle(struct ieee80211_local *local);
void ieee80211_recalc_idle(struct ieee80211_local *local);
+static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
+{
+ return netif_running(sdata->dev);
+}
+
/* tx handling */
void ieee80211_clear_tx_pending(struct ieee80211_local *local);
void ieee80211_tx_pending(unsigned long data);
void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
const u8 *da, u16 tid,
u16 initiator, u16 reason_code);
+int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
+ enum ieee80211_smps_mode smps, const u8 *da,
+ const u8 *bssid);
void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da,
u16 tid, u16 initiator, u16 reason);
u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
struct ieee802_11_elems *elems,
enum ieee80211_band band);
+int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
+ enum ieee80211_smps_mode smps_mode);
+void ieee80211_recalc_smps(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *forsdata);
+
+size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
+ const u8 *ids, int n_ids, size_t offset);
+size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
+
+/* internal work items */
+void ieee80211_work_init(struct ieee80211_local *local);
+void ieee80211_add_work(struct ieee80211_work *wk);
+void free_work(struct ieee80211_work *wk);
+void ieee80211_work_purge(struct ieee80211_sub_if_data *sdata);
+ieee80211_rx_result ieee80211_work_rx_mgmt(struct ieee80211_sub_if_data *sdata,
+ struct sk_buff *skb);
+int ieee80211_wk_remain_on_channel(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_channel *chan,
+ enum nl80211_channel_type channel_type,
+ unsigned int duration, u64 *cookie);
+int ieee80211_wk_cancel_remain_on_channel(
+ struct ieee80211_sub_if_data *sdata, u64 cookie);
#ifdef CONFIG_MAC80211_NOINLINE
#define debug_noinline noinline
git.samba.org / sfrench / cifs-2.6.git / blobdiff